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| author | techknowlogick <techknowlogick@gitea.io> | 2022-01-14 18:16:05 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-01-14 18:16:05 -0500 |
| commit | 84145e45c50130922fae9055535ab5ea0378e1d4 (patch) | |
| tree | fce077a5ae462840bb876ace79aca42abab29ed7 /vendor/github.com/miekg | |
| parent | 2b16ca7c773de278ba01f122dc6f9f43d7534c52 (diff) | |
| download | gitea-84145e45c50130922fae9055535ab5ea0378e1d4.tar.gz gitea-84145e45c50130922fae9055535ab5ea0378e1d4.zip | |
Remove golang vendored directory (#18277)
* rm go vendor
* fix drone yaml
* add to gitignore
Diffstat (limited to 'vendor/github.com/miekg')
57 files changed, 0 insertions, 20012 deletions
diff --git a/vendor/github.com/miekg/dns/.codecov.yml b/vendor/github.com/miekg/dns/.codecov.yml deleted file mode 100644 index f91e5c1fe5..0000000000 --- a/vendor/github.com/miekg/dns/.codecov.yml +++ /dev/null @@ -1,8 +0,0 @@ -coverage: - status: - project: - default: - target: 40% - threshold: null - patch: false - changes: false diff --git a/vendor/github.com/miekg/dns/.gitignore b/vendor/github.com/miekg/dns/.gitignore deleted file mode 100644 index 776cd950c2..0000000000 --- a/vendor/github.com/miekg/dns/.gitignore +++ /dev/null @@ -1,4 +0,0 @@ -*.6 -tags -test.out -a.out diff --git a/vendor/github.com/miekg/dns/AUTHORS b/vendor/github.com/miekg/dns/AUTHORS deleted file mode 100644 index 1965683525..0000000000 --- a/vendor/github.com/miekg/dns/AUTHORS +++ /dev/null @@ -1 +0,0 @@ -Miek Gieben <miek@miek.nl> diff --git a/vendor/github.com/miekg/dns/CODEOWNERS b/vendor/github.com/miekg/dns/CODEOWNERS deleted file mode 100644 index e0917031bc..0000000000 --- a/vendor/github.com/miekg/dns/CODEOWNERS +++ /dev/null @@ -1 +0,0 @@ -* @miekg @tmthrgd diff --git a/vendor/github.com/miekg/dns/CONTRIBUTORS b/vendor/github.com/miekg/dns/CONTRIBUTORS deleted file mode 100644 index 5903779d81..0000000000 --- a/vendor/github.com/miekg/dns/CONTRIBUTORS +++ /dev/null @@ -1,10 +0,0 @@ -Alex A. Skinner -Andrew Tunnell-Jones -Ask Bjørn Hansen -Dave Cheney -Dusty Wilson -Marek Majkowski -Peter van Dijk -Omri Bahumi -Alex Sergeyev -James Hartig diff --git a/vendor/github.com/miekg/dns/COPYRIGHT b/vendor/github.com/miekg/dns/COPYRIGHT deleted file mode 100644 index 35702b10e8..0000000000 --- a/vendor/github.com/miekg/dns/COPYRIGHT +++ /dev/null @@ -1,9 +0,0 @@ -Copyright 2009 The Go Authors. All rights reserved. Use of this source code -is governed by a BSD-style license that can be found in the LICENSE file. -Extensions of the original work are copyright (c) 2011 Miek Gieben - -Copyright 2011 Miek Gieben. All rights reserved. Use of this source code is -governed by a BSD-style license that can be found in the LICENSE file. - -Copyright 2014 CloudFlare. All rights reserved. Use of this source code is -governed by a BSD-style license that can be found in the LICENSE file. diff --git a/vendor/github.com/miekg/dns/LICENSE b/vendor/github.com/miekg/dns/LICENSE deleted file mode 100644 index 55f12ab777..0000000000 --- a/vendor/github.com/miekg/dns/LICENSE +++ /dev/null @@ -1,30 +0,0 @@ -Copyright (c) 2009 The Go Authors. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright -notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the following disclaimer -in the documentation and/or other materials provided with the -distribution. - * Neither the name of Google Inc. nor the names of its -contributors may be used to endorse or promote products derived from -this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -As this is fork of the official Go code the same license applies. -Extensions of the original work are copyright (c) 2011 Miek Gieben diff --git a/vendor/github.com/miekg/dns/Makefile.fuzz b/vendor/github.com/miekg/dns/Makefile.fuzz deleted file mode 100644 index dc158c4ace..0000000000 --- a/vendor/github.com/miekg/dns/Makefile.fuzz +++ /dev/null @@ -1,33 +0,0 @@ -# Makefile for fuzzing -# -# Use go-fuzz and needs the tools installed. -# See https://blog.cloudflare.com/dns-parser-meet-go-fuzzer/ -# -# Installing go-fuzz: -# $ make -f Makefile.fuzz get -# Installs: -# * github.com/dvyukov/go-fuzz/go-fuzz -# * get github.com/dvyukov/go-fuzz/go-fuzz-build - -all: build - -.PHONY: build -build: - go-fuzz-build -tags fuzz github.com/miekg/dns - -.PHONY: build-newrr -build-newrr: - go-fuzz-build -func FuzzNewRR -tags fuzz github.com/miekg/dns - -.PHONY: fuzz -fuzz: - go-fuzz -bin=dns-fuzz.zip -workdir=fuzz - -.PHONY: get -get: - go get github.com/dvyukov/go-fuzz/go-fuzz - go get github.com/dvyukov/go-fuzz/go-fuzz-build - -.PHONY: clean -clean: - rm *-fuzz.zip diff --git a/vendor/github.com/miekg/dns/Makefile.release b/vendor/github.com/miekg/dns/Makefile.release deleted file mode 100644 index a0ce9b712d..0000000000 --- a/vendor/github.com/miekg/dns/Makefile.release +++ /dev/null @@ -1,52 +0,0 @@ -# Makefile for releasing. -# -# The release is controlled from version.go. The version found there is -# used to tag the git repo, we're not building any artifacts so there is nothing -# to upload to github. -# -# * Up the version in version.go -# * Run: make -f Makefile.release release -# * will *commit* your change with 'Release $VERSION' -# * push to github -# - -define GO -//+build ignore - -package main - -import ( - "fmt" - - "github.com/miekg/dns" -) - -func main() { - fmt.Println(dns.Version.String()) -} -endef - -$(file > version_release.go,$(GO)) -VERSION:=$(shell go run version_release.go) -TAG="v$(VERSION)" - -all: - @echo Use the \'release\' target to start a release $(VERSION) - rm -f version_release.go - -.PHONY: release -release: commit push - @echo Released $(VERSION) - rm -f version_release.go - -.PHONY: commit -commit: - @echo Committing release $(VERSION) - git commit -am"Release $(VERSION)" - git tag $(TAG) - -.PHONY: push -push: - @echo Pushing release $(VERSION) to master - git push --tags - git push diff --git a/vendor/github.com/miekg/dns/README.md b/vendor/github.com/miekg/dns/README.md deleted file mode 100644 index d5b78ef41b..0000000000 --- a/vendor/github.com/miekg/dns/README.md +++ /dev/null @@ -1,182 +0,0 @@ -[](https://travis-ci.org/miekg/dns) -[](https://codecov.io/github/miekg/dns?branch=master) -[](https://goreportcard.com/report/miekg/dns) -[](https://godoc.org/github.com/miekg/dns) - -# Alternative (more granular) approach to a DNS library - -> Less is more. - -Complete and usable DNS library. All Resource Records are supported, including the DNSSEC types. -It follows a lean and mean philosophy. If there is stuff you should know as a DNS programmer there -isn't a convenience function for it. Server side and client side programming is supported, i.e. you -can build servers and resolvers with it. - -We try to keep the "master" branch as sane as possible and at the bleeding edge of standards, -avoiding breaking changes wherever reasonable. We support the last two versions of Go. - -# Goals - -* KISS; -* Fast; -* Small API. If it's easy to code in Go, don't make a function for it. - -# Users - -A not-so-up-to-date-list-that-may-be-actually-current: - -* https://github.com/coredns/coredns -* https://github.com/abh/geodns -* https://github.com/baidu/bfe -* http://www.statdns.com/ -* http://www.dnsinspect.com/ -* https://github.com/chuangbo/jianbing-dictionary-dns -* http://www.dns-lg.com/ -* https://github.com/fcambus/rrda -* https://github.com/kenshinx/godns -* https://github.com/skynetservices/skydns -* https://github.com/hashicorp/consul -* https://github.com/DevelopersPL/godnsagent -* https://github.com/duedil-ltd/discodns -* https://github.com/StalkR/dns-reverse-proxy -* https://github.com/tianon/rawdns -* https://mesosphere.github.io/mesos-dns/ -* https://github.com/fcambus/statzone -* https://github.com/benschw/dns-clb-go -* https://github.com/corny/dnscheck for <http://public-dns.info/> -* https://github.com/miekg/unbound -* https://github.com/miekg/exdns -* https://dnslookup.org -* https://github.com/looterz/grimd -* https://github.com/phamhongviet/serf-dns -* https://github.com/mehrdadrad/mylg -* https://github.com/bamarni/dockness -* https://github.com/fffaraz/microdns -* https://github.com/ipdcode/hades <https://jd.com> -* https://github.com/StackExchange/dnscontrol/ -* https://www.dnsperf.com/ -* https://dnssectest.net/ -* https://github.com/oif/apex -* https://github.com/jedisct1/dnscrypt-proxy -* https://github.com/jedisct1/rpdns -* https://github.com/xor-gate/sshfp -* https://github.com/rs/dnstrace -* https://blitiri.com.ar/p/dnss ([github mirror](https://github.com/albertito/dnss)) -* https://render.com -* https://github.com/peterzen/goresolver -* https://github.com/folbricht/routedns -* https://domainr.com/ -* https://zonedb.org/ -* https://router7.org/ -* https://github.com/fortio/dnsping -* https://github.com/Luzilla/dnsbl_exporter -* https://github.com/bodgit/tsig -* https://github.com/v2fly/v2ray-core (test only) -* https://kuma.io/ - - -Send pull request if you want to be listed here. - -# Features - -* UDP/TCP queries, IPv4 and IPv6 -* RFC 1035 zone file parsing ($INCLUDE, $ORIGIN, $TTL and $GENERATE (for all record types) are supported -* Fast -* Server side programming (mimicking the net/http package) -* Client side programming -* DNSSEC: signing, validating and key generation for DSA, RSA, ECDSA and Ed25519 -* EDNS0, NSID, Cookies -* AXFR/IXFR -* TSIG, SIG(0) -* DNS over TLS (DoT): encrypted connection between client and server over TCP -* DNS name compression - -Have fun! - -Miek Gieben - 2010-2012 - <miek@miek.nl> -DNS Authors 2012- - -# Building - -This library uses Go modules and uses semantic versioning. Building is done with the `go` tool, so -the following should work: - - go get github.com/miekg/dns - go build github.com/miekg/dns - -## Examples - -A short "how to use the API" is at the beginning of doc.go (this also will show when you call `godoc -github.com/miekg/dns`). - -Example programs can be found in the `github.com/miekg/exdns` repository. - -## Supported RFCs - -*all of them* - -* 103{4,5} - DNS standard -* 1348 - NSAP record (removed the record) -* 1982 - Serial Arithmetic -* 1876 - LOC record -* 1995 - IXFR -* 1996 - DNS notify -* 2136 - DNS Update (dynamic updates) -* 2181 - RRset definition - there is no RRset type though, just []RR -* 2537 - RSAMD5 DNS keys -* 2065 - DNSSEC (updated in later RFCs) -* 2671 - EDNS record -* 2782 - SRV record -* 2845 - TSIG record -* 2915 - NAPTR record -* 2929 - DNS IANA Considerations -* 3110 - RSASHA1 DNS keys -* 3123 - APL record -* 3225 - DO bit (DNSSEC OK) -* 340{1,2,3} - NAPTR record -* 3445 - Limiting the scope of (DNS)KEY -* 3597 - Unknown RRs -* 403{3,4,5} - DNSSEC + validation functions -* 4255 - SSHFP record -* 4343 - Case insensitivity -* 4408 - SPF record -* 4509 - SHA256 Hash in DS -* 4592 - Wildcards in the DNS -* 4635 - HMAC SHA TSIG -* 4701 - DHCID -* 4892 - id.server -* 5001 - NSID -* 5155 - NSEC3 record -* 5205 - HIP record -* 5702 - SHA2 in the DNS -* 5936 - AXFR -* 5966 - TCP implementation recommendations -* 6605 - ECDSA -* 6725 - IANA Registry Update -* 6742 - ILNP DNS -* 6840 - Clarifications and Implementation Notes for DNS Security -* 6844 - CAA record -* 6891 - EDNS0 update -* 6895 - DNS IANA considerations -* 6944 - DNSSEC DNSKEY Algorithm Status -* 6975 - Algorithm Understanding in DNSSEC -* 7043 - EUI48/EUI64 records -* 7314 - DNS (EDNS) EXPIRE Option -* 7477 - CSYNC RR -* 7828 - edns-tcp-keepalive EDNS0 Option -* 7553 - URI record -* 7858 - DNS over TLS: Initiation and Performance Considerations -* 7871 - EDNS0 Client Subnet -* 7873 - Domain Name System (DNS) Cookies -* 8080 - EdDSA for DNSSEC -* 8499 - DNS Terminology -* 8659 - DNS Certification Authority Authorization (CAA) Resource Record -* 8914 - Extended DNS Errors -* 8976 - Message Digest for DNS Zones (ZONEMD RR) - -## Loosely Based Upon - -* ldns - <https://nlnetlabs.nl/projects/ldns/about/> -* NSD - <https://nlnetlabs.nl/projects/nsd/about/> -* Net::DNS - <http://www.net-dns.org/> -* GRONG - <https://github.com/bortzmeyer/grong> diff --git a/vendor/github.com/miekg/dns/acceptfunc.go b/vendor/github.com/miekg/dns/acceptfunc.go deleted file mode 100644 index 3f29a48c48..0000000000 --- a/vendor/github.com/miekg/dns/acceptfunc.go +++ /dev/null @@ -1,62 +0,0 @@ -package dns - -// MsgAcceptFunc is used early in the server code to accept or reject a message with RcodeFormatError. -// It returns a MsgAcceptAction to indicate what should happen with the message. -type MsgAcceptFunc func(dh Header) MsgAcceptAction - -// DefaultMsgAcceptFunc checks the request and will reject if: -// -// * isn't a request (don't respond in that case) -// -// * opcode isn't OpcodeQuery or OpcodeNotify -// -// * Zero bit isn't zero -// -// * has more than 1 question in the question section -// -// * has more than 1 RR in the Answer section -// -// * has more than 0 RRs in the Authority section -// -// * has more than 2 RRs in the Additional section -// -var DefaultMsgAcceptFunc MsgAcceptFunc = defaultMsgAcceptFunc - -// MsgAcceptAction represents the action to be taken. -type MsgAcceptAction int - -// Allowed returned values from a MsgAcceptFunc. -const ( - MsgAccept MsgAcceptAction = iota // Accept the message - MsgReject // Reject the message with a RcodeFormatError - MsgIgnore // Ignore the error and send nothing back. - MsgRejectNotImplemented // Reject the message with a RcodeNotImplemented -) - -func defaultMsgAcceptFunc(dh Header) MsgAcceptAction { - if isResponse := dh.Bits&_QR != 0; isResponse { - return MsgIgnore - } - - // Don't allow dynamic updates, because then the sections can contain a whole bunch of RRs. - opcode := int(dh.Bits>>11) & 0xF - if opcode != OpcodeQuery && opcode != OpcodeNotify { - return MsgRejectNotImplemented - } - - if dh.Qdcount != 1 { - return MsgReject - } - // NOTIFY requests can have a SOA in the ANSWER section. See RFC 1996 Section 3.7 and 3.11. - if dh.Ancount > 1 { - return MsgReject - } - // IXFR request could have one SOA RR in the NS section. See RFC 1995, section 3. - if dh.Nscount > 1 { - return MsgReject - } - if dh.Arcount > 2 { - return MsgReject - } - return MsgAccept -} diff --git a/vendor/github.com/miekg/dns/client.go b/vendor/github.com/miekg/dns/client.go deleted file mode 100644 index f907698b5d..0000000000 --- a/vendor/github.com/miekg/dns/client.go +++ /dev/null @@ -1,449 +0,0 @@ -package dns - -// A client implementation. - -import ( - "context" - "crypto/tls" - "encoding/binary" - "fmt" - "io" - "net" - "strings" - "time" -) - -const ( - dnsTimeout time.Duration = 2 * time.Second - tcpIdleTimeout time.Duration = 8 * time.Second -) - -// A Conn represents a connection to a DNS server. -type Conn struct { - net.Conn // a net.Conn holding the connection - UDPSize uint16 // minimum receive buffer for UDP messages - TsigSecret map[string]string // secret(s) for Tsig map[<zonename>]<base64 secret>, zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2) - TsigProvider TsigProvider // An implementation of the TsigProvider interface. If defined it replaces TsigSecret and is used for all TSIG operations. - tsigRequestMAC string -} - -// A Client defines parameters for a DNS client. -type Client struct { - Net string // if "tcp" or "tcp-tls" (DNS over TLS) a TCP query will be initiated, otherwise an UDP one (default is "" for UDP) - UDPSize uint16 // minimum receive buffer for UDP messages - TLSConfig *tls.Config // TLS connection configuration - Dialer *net.Dialer // a net.Dialer used to set local address, timeouts and more - // Timeout is a cumulative timeout for dial, write and read, defaults to 0 (disabled) - overrides DialTimeout, ReadTimeout, - // WriteTimeout when non-zero. Can be overridden with net.Dialer.Timeout (see Client.ExchangeWithDialer and - // Client.Dialer) or context.Context.Deadline (see ExchangeContext) - Timeout time.Duration - DialTimeout time.Duration // net.DialTimeout, defaults to 2 seconds, or net.Dialer.Timeout if expiring earlier - overridden by Timeout when that value is non-zero - ReadTimeout time.Duration // net.Conn.SetReadTimeout value for connections, defaults to 2 seconds - overridden by Timeout when that value is non-zero - WriteTimeout time.Duration // net.Conn.SetWriteTimeout value for connections, defaults to 2 seconds - overridden by Timeout when that value is non-zero - TsigSecret map[string]string // secret(s) for Tsig map[<zonename>]<base64 secret>, zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2) - TsigProvider TsigProvider // An implementation of the TsigProvider interface. If defined it replaces TsigSecret and is used for all TSIG operations. - SingleInflight bool // if true suppress multiple outstanding queries for the same Qname, Qtype and Qclass - group singleflight -} - -// Exchange performs a synchronous UDP query. It sends the message m to the address -// contained in a and waits for a reply. Exchange does not retry a failed query, nor -// will it fall back to TCP in case of truncation. -// See client.Exchange for more information on setting larger buffer sizes. -func Exchange(m *Msg, a string) (r *Msg, err error) { - client := Client{Net: "udp"} - r, _, err = client.Exchange(m, a) - return r, err -} - -func (c *Client) dialTimeout() time.Duration { - if c.Timeout != 0 { - return c.Timeout - } - if c.DialTimeout != 0 { - return c.DialTimeout - } - return dnsTimeout -} - -func (c *Client) readTimeout() time.Duration { - if c.ReadTimeout != 0 { - return c.ReadTimeout - } - return dnsTimeout -} - -func (c *Client) writeTimeout() time.Duration { - if c.WriteTimeout != 0 { - return c.WriteTimeout - } - return dnsTimeout -} - -// Dial connects to the address on the named network. -func (c *Client) Dial(address string) (conn *Conn, err error) { - // create a new dialer with the appropriate timeout - var d net.Dialer - if c.Dialer == nil { - d = net.Dialer{Timeout: c.getTimeoutForRequest(c.dialTimeout())} - } else { - d = *c.Dialer - } - - network := c.Net - if network == "" { - network = "udp" - } - - useTLS := strings.HasPrefix(network, "tcp") && strings.HasSuffix(network, "-tls") - - conn = new(Conn) - if useTLS { - network = strings.TrimSuffix(network, "-tls") - - conn.Conn, err = tls.DialWithDialer(&d, network, address, c.TLSConfig) - } else { - conn.Conn, err = d.Dial(network, address) - } - if err != nil { - return nil, err - } - conn.UDPSize = c.UDPSize - return conn, nil -} - -// Exchange performs a synchronous query. It sends the message m to the address -// contained in a and waits for a reply. Basic use pattern with a *dns.Client: -// -// c := new(dns.Client) -// in, rtt, err := c.Exchange(message, "127.0.0.1:53") -// -// Exchange does not retry a failed query, nor will it fall back to TCP in -// case of truncation. -// It is up to the caller to create a message that allows for larger responses to be -// returned. Specifically this means adding an EDNS0 OPT RR that will advertise a larger -// buffer, see SetEdns0. Messages without an OPT RR will fallback to the historic limit -// of 512 bytes -// To specify a local address or a timeout, the caller has to set the `Client.Dialer` -// attribute appropriately -func (c *Client) Exchange(m *Msg, address string) (r *Msg, rtt time.Duration, err error) { - co, err := c.Dial(address) - - if err != nil { - return nil, 0, err - } - defer co.Close() - return c.ExchangeWithConn(m, co) -} - -// ExchangeWithConn has the same behavior as Exchange, just with a predetermined connection -// that will be used instead of creating a new one. -// Usage pattern with a *dns.Client: -// c := new(dns.Client) -// // connection management logic goes here -// -// conn := c.Dial(address) -// in, rtt, err := c.ExchangeWithConn(message, conn) -// -// This allows users of the library to implement their own connection management, -// as opposed to Exchange, which will always use new connections and incur the added overhead -// that entails when using "tcp" and especially "tcp-tls" clients. -func (c *Client) ExchangeWithConn(m *Msg, conn *Conn) (r *Msg, rtt time.Duration, err error) { - if !c.SingleInflight { - return c.exchange(m, conn) - } - - q := m.Question[0] - key := fmt.Sprintf("%s:%d:%d", q.Name, q.Qtype, q.Qclass) - r, rtt, err, shared := c.group.Do(key, func() (*Msg, time.Duration, error) { - return c.exchange(m, conn) - }) - if r != nil && shared { - r = r.Copy() - } - - return r, rtt, err -} - -func (c *Client) exchange(m *Msg, co *Conn) (r *Msg, rtt time.Duration, err error) { - - opt := m.IsEdns0() - // If EDNS0 is used use that for size. - if opt != nil && opt.UDPSize() >= MinMsgSize { - co.UDPSize = opt.UDPSize() - } - // Otherwise use the client's configured UDP size. - if opt == nil && c.UDPSize >= MinMsgSize { - co.UDPSize = c.UDPSize - } - - co.TsigSecret, co.TsigProvider = c.TsigSecret, c.TsigProvider - t := time.Now() - // write with the appropriate write timeout - co.SetWriteDeadline(t.Add(c.getTimeoutForRequest(c.writeTimeout()))) - if err = co.WriteMsg(m); err != nil { - return nil, 0, err - } - - co.SetReadDeadline(time.Now().Add(c.getTimeoutForRequest(c.readTimeout()))) - if _, ok := co.Conn.(net.PacketConn); ok { - for { - r, err = co.ReadMsg() - // Ignore replies with mismatched IDs because they might be - // responses to earlier queries that timed out. - if err != nil || r.Id == m.Id { - break - } - } - } else { - r, err = co.ReadMsg() - if err == nil && r.Id != m.Id { - err = ErrId - } - } - rtt = time.Since(t) - return r, rtt, err -} - -// ReadMsg reads a message from the connection co. -// If the received message contains a TSIG record the transaction signature -// is verified. This method always tries to return the message, however if an -// error is returned there are no guarantees that the returned message is a -// valid representation of the packet read. -func (co *Conn) ReadMsg() (*Msg, error) { - p, err := co.ReadMsgHeader(nil) - if err != nil { - return nil, err - } - - m := new(Msg) - if err := m.Unpack(p); err != nil { - // If an error was returned, we still want to allow the user to use - // the message, but naively they can just check err if they don't want - // to use an erroneous message - return m, err - } - if t := m.IsTsig(); t != nil { - if co.TsigProvider != nil { - err = tsigVerifyProvider(p, co.TsigProvider, co.tsigRequestMAC, false) - } else { - if _, ok := co.TsigSecret[t.Hdr.Name]; !ok { - return m, ErrSecret - } - // Need to work on the original message p, as that was used to calculate the tsig. - err = TsigVerify(p, co.TsigSecret[t.Hdr.Name], co.tsigRequestMAC, false) - } - } - return m, err -} - -// ReadMsgHeader reads a DNS message, parses and populates hdr (when hdr is not nil). -// Returns message as a byte slice to be parsed with Msg.Unpack later on. -// Note that error handling on the message body is not possible as only the header is parsed. -func (co *Conn) ReadMsgHeader(hdr *Header) ([]byte, error) { - var ( - p []byte - n int - err error - ) - - if _, ok := co.Conn.(net.PacketConn); ok { - if co.UDPSize > MinMsgSize { - p = make([]byte, co.UDPSize) - } else { - p = make([]byte, MinMsgSize) - } - n, err = co.Read(p) - } else { - var length uint16 - if err := binary.Read(co.Conn, binary.BigEndian, &length); err != nil { - return nil, err - } - - p = make([]byte, length) - n, err = io.ReadFull(co.Conn, p) - } - - if err != nil { - return nil, err - } else if n < headerSize { - return nil, ErrShortRead - } - - p = p[:n] - if hdr != nil { - dh, _, err := unpackMsgHdr(p, 0) - if err != nil { - return nil, err - } - *hdr = dh - } - return p, err -} - -// Read implements the net.Conn read method. -func (co *Conn) Read(p []byte) (n int, err error) { - if co.Conn == nil { - return 0, ErrConnEmpty - } - - if _, ok := co.Conn.(net.PacketConn); ok { - // UDP connection - return co.Conn.Read(p) - } - - var length uint16 - if err := binary.Read(co.Conn, binary.BigEndian, &length); err != nil { - return 0, err - } - if int(length) > len(p) { - return 0, io.ErrShortBuffer - } - - return io.ReadFull(co.Conn, p[:length]) -} - -// WriteMsg sends a message through the connection co. -// If the message m contains a TSIG record the transaction -// signature is calculated. -func (co *Conn) WriteMsg(m *Msg) (err error) { - var out []byte - if t := m.IsTsig(); t != nil { - mac := "" - if co.TsigProvider != nil { - out, mac, err = tsigGenerateProvider(m, co.TsigProvider, co.tsigRequestMAC, false) - } else { - if _, ok := co.TsigSecret[t.Hdr.Name]; !ok { - return ErrSecret - } - out, mac, err = TsigGenerate(m, co.TsigSecret[t.Hdr.Name], co.tsigRequestMAC, false) - } - // Set for the next read, although only used in zone transfers - co.tsigRequestMAC = mac - } else { - out, err = m.Pack() - } - if err != nil { - return err - } - _, err = co.Write(out) - return err -} - -// Write implements the net.Conn Write method. -func (co *Conn) Write(p []byte) (int, error) { - if len(p) > MaxMsgSize { - return 0, &Error{err: "message too large"} - } - - if _, ok := co.Conn.(net.PacketConn); ok { - return co.Conn.Write(p) - } - - msg := make([]byte, 2+len(p)) - binary.BigEndian.PutUint16(msg, uint16(len(p))) - copy(msg[2:], p) - return co.Conn.Write(msg) -} - -// Return the appropriate timeout for a specific request -func (c *Client) getTimeoutForRequest(timeout time.Duration) time.Duration { - var requestTimeout time.Duration - if c.Timeout != 0 { - requestTimeout = c.Timeout - } else { - requestTimeout = timeout - } - // net.Dialer.Timeout has priority if smaller than the timeouts computed so - // far - if c.Dialer != nil && c.Dialer.Timeout != 0 { - if c.Dialer.Timeout < requestTimeout { - requestTimeout = c.Dialer.Timeout - } - } - return requestTimeout -} - -// Dial connects to the address on the named network. -func Dial(network, address string) (conn *Conn, err error) { - conn = new(Conn) - conn.Conn, err = net.Dial(network, address) - if err != nil { - return nil, err - } - return conn, nil -} - -// ExchangeContext performs a synchronous UDP query, like Exchange. It -// additionally obeys deadlines from the passed Context. -func ExchangeContext(ctx context.Context, m *Msg, a string) (r *Msg, err error) { - client := Client{Net: "udp"} - r, _, err = client.ExchangeContext(ctx, m, a) - // ignoring rtt to leave the original ExchangeContext API unchanged, but - // this function will go away - return r, err -} - -// ExchangeConn performs a synchronous query. It sends the message m via the connection -// c and waits for a reply. The connection c is not closed by ExchangeConn. -// Deprecated: This function is going away, but can easily be mimicked: -// -// co := &dns.Conn{Conn: c} // c is your net.Conn -// co.WriteMsg(m) -// in, _ := co.ReadMsg() -// co.Close() -// -func ExchangeConn(c net.Conn, m *Msg) (r *Msg, err error) { - println("dns: ExchangeConn: this function is deprecated") - co := new(Conn) - co.Conn = c - if err = co.WriteMsg(m); err != nil { - return nil, err - } - r, err = co.ReadMsg() - if err == nil && r.Id != m.Id { - err = ErrId - } - return r, err -} - -// DialTimeout acts like Dial but takes a timeout. -func DialTimeout(network, address string, timeout time.Duration) (conn *Conn, err error) { - client := Client{Net: network, Dialer: &net.Dialer{Timeout: timeout}} - return client.Dial(address) -} - -// DialWithTLS connects to the address on the named network with TLS. -func DialWithTLS(network, address string, tlsConfig *tls.Config) (conn *Conn, err error) { - if !strings.HasSuffix(network, "-tls") { - network += "-tls" - } - client := Client{Net: network, TLSConfig: tlsConfig} - return client.Dial(address) -} - -// DialTimeoutWithTLS acts like DialWithTLS but takes a timeout. -func DialTimeoutWithTLS(network, address string, tlsConfig *tls.Config, timeout time.Duration) (conn *Conn, err error) { - if !strings.HasSuffix(network, "-tls") { - network += "-tls" - } - client := Client{Net: network, Dialer: &net.Dialer{Timeout: timeout}, TLSConfig: tlsConfig} - return client.Dial(address) -} - -// ExchangeContext acts like Exchange, but honors the deadline on the provided -// context, if present. If there is both a context deadline and a configured -// timeout on the client, the earliest of the two takes effect. -func (c *Client) ExchangeContext(ctx context.Context, m *Msg, a string) (r *Msg, rtt time.Duration, err error) { - var timeout time.Duration - if deadline, ok := ctx.Deadline(); !ok { - timeout = 0 - } else { - timeout = time.Until(deadline) - } - // not passing the context to the underlying calls, as the API does not support - // context. For timeouts you should set up Client.Dialer and call Client.Exchange. - // TODO(tmthrgd,miekg): this is a race condition. - c.Dialer = &net.Dialer{Timeout: timeout} - return c.Exchange(m, a) -} diff --git a/vendor/github.com/miekg/dns/clientconfig.go b/vendor/github.com/miekg/dns/clientconfig.go deleted file mode 100644 index e11b630df9..0000000000 --- a/vendor/github.com/miekg/dns/clientconfig.go +++ /dev/null @@ -1,135 +0,0 @@ -package dns - -import ( - "bufio" - "io" - "os" - "strconv" - "strings" -) - -// ClientConfig wraps the contents of the /etc/resolv.conf file. -type ClientConfig struct { - Servers []string // servers to use - Search []string // suffixes to append to local name - Port string // what port to use - Ndots int // number of dots in name to trigger absolute lookup - Timeout int // seconds before giving up on packet - Attempts int // lost packets before giving up on server, not used in the package dns -} - -// ClientConfigFromFile parses a resolv.conf(5) like file and returns -// a *ClientConfig. -func ClientConfigFromFile(resolvconf string) (*ClientConfig, error) { - file, err := os.Open(resolvconf) - if err != nil { - return nil, err - } - defer file.Close() - return ClientConfigFromReader(file) -} - -// ClientConfigFromReader works like ClientConfigFromFile but takes an io.Reader as argument -func ClientConfigFromReader(resolvconf io.Reader) (*ClientConfig, error) { - c := new(ClientConfig) - scanner := bufio.NewScanner(resolvconf) - c.Servers = make([]string, 0) - c.Search = make([]string, 0) - c.Port = "53" - c.Ndots = 1 - c.Timeout = 5 - c.Attempts = 2 - - for scanner.Scan() { - if err := scanner.Err(); err != nil { - return nil, err - } - line := scanner.Text() - f := strings.Fields(line) - if len(f) < 1 { - continue - } - switch f[0] { - case "nameserver": // add one name server - if len(f) > 1 { - // One more check: make sure server name is - // just an IP address. Otherwise we need DNS - // to look it up. - name := f[1] - c.Servers = append(c.Servers, name) - } - - case "domain": // set search path to just this domain - if len(f) > 1 { - c.Search = make([]string, 1) - c.Search[0] = f[1] - } else { - c.Search = make([]string, 0) - } - - case "search": // set search path to given servers - c.Search = append([]string(nil), f[1:]...) - - case "options": // magic options - for _, s := range f[1:] { - switch { - case len(s) >= 6 && s[:6] == "ndots:": - n, _ := strconv.Atoi(s[6:]) - if n < 0 { - n = 0 - } else if n > 15 { - n = 15 - } - c.Ndots = n - case len(s) >= 8 && s[:8] == "timeout:": - n, _ := strconv.Atoi(s[8:]) - if n < 1 { - n = 1 - } - c.Timeout = n - case len(s) >= 9 && s[:9] == "attempts:": - n, _ := strconv.Atoi(s[9:]) - if n < 1 { - n = 1 - } - c.Attempts = n - case s == "rotate": - /* not imp */ - } - } - } - } - return c, nil -} - -// NameList returns all of the names that should be queried based on the -// config. It is based off of go's net/dns name building, but it does not -// check the length of the resulting names. -func (c *ClientConfig) NameList(name string) []string { - // if this domain is already fully qualified, no append needed. - if IsFqdn(name) { - return []string{name} - } - - // Check to see if the name has more labels than Ndots. Do this before making - // the domain fully qualified. - hasNdots := CountLabel(name) > c.Ndots - // Make the domain fully qualified. - name = Fqdn(name) - - // Make a list of names based off search. - names := []string{} - - // If name has enough dots, try that first. - if hasNdots { - names = append(names, name) - } - for _, s := range c.Search { - names = append(names, Fqdn(name+s)) - } - // If we didn't have enough dots, try after suffixes. - if !hasNdots { - names = append(names, name) - } - return names -} diff --git a/vendor/github.com/miekg/dns/dane.go b/vendor/github.com/miekg/dns/dane.go deleted file mode 100644 index 8c4a14ef19..0000000000 --- a/vendor/github.com/miekg/dns/dane.go +++ /dev/null @@ -1,43 +0,0 @@ -package dns - -import ( - "crypto/sha256" - "crypto/sha512" - "crypto/x509" - "encoding/hex" - "errors" -) - -// CertificateToDANE converts a certificate to a hex string as used in the TLSA or SMIMEA records. -func CertificateToDANE(selector, matchingType uint8, cert *x509.Certificate) (string, error) { - switch matchingType { - case 0: - switch selector { - case 0: - return hex.EncodeToString(cert.Raw), nil - case 1: - return hex.EncodeToString(cert.RawSubjectPublicKeyInfo), nil - } - case 1: - h := sha256.New() - switch selector { - case 0: - h.Write(cert.Raw) - return hex.EncodeToString(h.Sum(nil)), nil - case 1: - h.Write(cert.RawSubjectPublicKeyInfo) - return hex.EncodeToString(h.Sum(nil)), nil - } - case 2: - h := sha512.New() - switch selector { - case 0: - h.Write(cert.Raw) - return hex.EncodeToString(h.Sum(nil)), nil - case 1: - h.Write(cert.RawSubjectPublicKeyInfo) - return hex.EncodeToString(h.Sum(nil)), nil - } - } - return "", errors.New("dns: bad MatchingType or Selector") -} diff --git a/vendor/github.com/miekg/dns/defaults.go b/vendor/github.com/miekg/dns/defaults.go deleted file mode 100644 index d47b0b1f2b..0000000000 --- a/vendor/github.com/miekg/dns/defaults.go +++ /dev/null @@ -1,381 +0,0 @@ -package dns - -import ( - "errors" - "net" - "strconv" - "strings" -) - -const hexDigit = "0123456789abcdef" - -// Everything is assumed in ClassINET. - -// SetReply creates a reply message from a request message. -func (dns *Msg) SetReply(request *Msg) *Msg { - dns.Id = request.Id - dns.Response = true - dns.Opcode = request.Opcode - if dns.Opcode == OpcodeQuery { - dns.RecursionDesired = request.RecursionDesired // Copy rd bit - dns.CheckingDisabled = request.CheckingDisabled // Copy cd bit - } - dns.Rcode = RcodeSuccess - if len(request.Question) > 0 { - dns.Question = make([]Question, 1) - dns.Question[0] = request.Question[0] - } - return dns -} - -// SetQuestion creates a question message, it sets the Question -// section, generates an Id and sets the RecursionDesired (RD) -// bit to true. -func (dns *Msg) SetQuestion(z string, t uint16) *Msg { - dns.Id = Id() - dns.RecursionDesired = true - dns.Question = make([]Question, 1) - dns.Question[0] = Question{z, t, ClassINET} - return dns -} - -// SetNotify creates a notify message, it sets the Question -// section, generates an Id and sets the Authoritative (AA) -// bit to true. -func (dns *Msg) SetNotify(z string) *Msg { - dns.Opcode = OpcodeNotify - dns.Authoritative = true - dns.Id = Id() - dns.Question = make([]Question, 1) - dns.Question[0] = Question{z, TypeSOA, ClassINET} - return dns -} - -// SetRcode creates an error message suitable for the request. -func (dns *Msg) SetRcode(request *Msg, rcode int) *Msg { - dns.SetReply(request) - dns.Rcode = rcode - return dns -} - -// SetRcodeFormatError creates a message with FormError set. -func (dns *Msg) SetRcodeFormatError(request *Msg) *Msg { - dns.Rcode = RcodeFormatError - dns.Opcode = OpcodeQuery - dns.Response = true - dns.Authoritative = false - dns.Id = request.Id - return dns -} - -// SetUpdate makes the message a dynamic update message. It -// sets the ZONE section to: z, TypeSOA, ClassINET. -func (dns *Msg) SetUpdate(z string) *Msg { - dns.Id = Id() - dns.Response = false - dns.Opcode = OpcodeUpdate - dns.Compress = false // BIND9 cannot handle compression - dns.Question = make([]Question, 1) - dns.Question[0] = Question{z, TypeSOA, ClassINET} - return dns -} - -// SetIxfr creates message for requesting an IXFR. -func (dns *Msg) SetIxfr(z string, serial uint32, ns, mbox string) *Msg { - dns.Id = Id() - dns.Question = make([]Question, 1) - dns.Ns = make([]RR, 1) - s := new(SOA) - s.Hdr = RR_Header{z, TypeSOA, ClassINET, defaultTtl, 0} - s.Serial = serial - s.Ns = ns - s.Mbox = mbox - dns.Question[0] = Question{z, TypeIXFR, ClassINET} - dns.Ns[0] = s - return dns -} - -// SetAxfr creates message for requesting an AXFR. -func (dns *Msg) SetAxfr(z string) *Msg { - dns.Id = Id() - dns.Question = make([]Question, 1) - dns.Question[0] = Question{z, TypeAXFR, ClassINET} - return dns -} - -// SetTsig appends a TSIG RR to the message. -// This is only a skeleton TSIG RR that is added as the last RR in the -// additional section. The TSIG is calculated when the message is being send. -func (dns *Msg) SetTsig(z, algo string, fudge uint16, timesigned int64) *Msg { - t := new(TSIG) - t.Hdr = RR_Header{z, TypeTSIG, ClassANY, 0, 0} - t.Algorithm = algo - t.Fudge = fudge - t.TimeSigned = uint64(timesigned) - t.OrigId = dns.Id - dns.Extra = append(dns.Extra, t) - return dns -} - -// SetEdns0 appends a EDNS0 OPT RR to the message. -// TSIG should always the last RR in a message. -func (dns *Msg) SetEdns0(udpsize uint16, do bool) *Msg { - e := new(OPT) - e.Hdr.Name = "." - e.Hdr.Rrtype = TypeOPT - e.SetUDPSize(udpsize) - if do { - e.SetDo() - } - dns.Extra = append(dns.Extra, e) - return dns -} - -// IsTsig checks if the message has a TSIG record as the last record -// in the additional section. It returns the TSIG record found or nil. -func (dns *Msg) IsTsig() *TSIG { - if len(dns.Extra) > 0 { - if dns.Extra[len(dns.Extra)-1].Header().Rrtype == TypeTSIG { - return dns.Extra[len(dns.Extra)-1].(*TSIG) - } - } - return nil -} - -// IsEdns0 checks if the message has a EDNS0 (OPT) record, any EDNS0 -// record in the additional section will do. It returns the OPT record -// found or nil. -func (dns *Msg) IsEdns0() *OPT { - // RFC 6891, Section 6.1.1 allows the OPT record to appear - // anywhere in the additional record section, but it's usually at - // the end so start there. - for i := len(dns.Extra) - 1; i >= 0; i-- { - if dns.Extra[i].Header().Rrtype == TypeOPT { - return dns.Extra[i].(*OPT) - } - } - return nil -} - -// popEdns0 is like IsEdns0, but it removes the record from the message. -func (dns *Msg) popEdns0() *OPT { - // RFC 6891, Section 6.1.1 allows the OPT record to appear - // anywhere in the additional record section, but it's usually at - // the end so start there. - for i := len(dns.Extra) - 1; i >= 0; i-- { - if dns.Extra[i].Header().Rrtype == TypeOPT { - opt := dns.Extra[i].(*OPT) - dns.Extra = append(dns.Extra[:i], dns.Extra[i+1:]...) - return opt - } - } - return nil -} - -// IsDomainName checks if s is a valid domain name, it returns the number of -// labels and true, when a domain name is valid. Note that non fully qualified -// domain name is considered valid, in this case the last label is counted in -// the number of labels. When false is returned the number of labels is not -// defined. Also note that this function is extremely liberal; almost any -// string is a valid domain name as the DNS is 8 bit protocol. It checks if each -// label fits in 63 characters and that the entire name will fit into the 255 -// octet wire format limit. -func IsDomainName(s string) (labels int, ok bool) { - // XXX: The logic in this function was copied from packDomainName and - // should be kept in sync with that function. - - const lenmsg = 256 - - if len(s) == 0 { // Ok, for instance when dealing with update RR without any rdata. - return 0, false - } - - s = Fqdn(s) - - // Each dot ends a segment of the name. Except for escaped dots (\.), which - // are normal dots. - - var ( - off int - begin int - wasDot bool - ) - for i := 0; i < len(s); i++ { - switch s[i] { - case '\\': - if off+1 > lenmsg { - return labels, false - } - - // check for \DDD - if i+3 < len(s) && isDigit(s[i+1]) && isDigit(s[i+2]) && isDigit(s[i+3]) { - i += 3 - begin += 3 - } else { - i++ - begin++ - } - - wasDot = false - case '.': - if wasDot { - // two dots back to back is not legal - return labels, false - } - wasDot = true - - labelLen := i - begin - if labelLen >= 1<<6 { // top two bits of length must be clear - return labels, false - } - - // off can already (we're in a loop) be bigger than lenmsg - // this happens when a name isn't fully qualified - off += 1 + labelLen - if off > lenmsg { - return labels, false - } - - labels++ - begin = i + 1 - default: - wasDot = false - } - } - - return labels, true -} - -// IsSubDomain checks if child is indeed a child of the parent. If child and parent -// are the same domain true is returned as well. -func IsSubDomain(parent, child string) bool { - // Entire child is contained in parent - return CompareDomainName(parent, child) == CountLabel(parent) -} - -// IsMsg sanity checks buf and returns an error if it isn't a valid DNS packet. -// The checking is performed on the binary payload. -func IsMsg(buf []byte) error { - // Header - if len(buf) < headerSize { - return errors.New("dns: bad message header") - } - // Header: Opcode - // TODO(miek): more checks here, e.g. check all header bits. - return nil -} - -// IsFqdn checks if a domain name is fully qualified. -func IsFqdn(s string) bool { - s2 := strings.TrimSuffix(s, ".") - if s == s2 { - return false - } - - i := strings.LastIndexFunc(s2, func(r rune) bool { - return r != '\\' - }) - - // Test whether we have an even number of escape sequences before - // the dot or none. - return (len(s2)-i)%2 != 0 -} - -// IsRRset checks if a set of RRs is a valid RRset as defined by RFC 2181. -// This means the RRs need to have the same type, name, and class. Returns true -// if the RR set is valid, otherwise false. -func IsRRset(rrset []RR) bool { - if len(rrset) == 0 { - return false - } - if len(rrset) == 1 { - return true - } - rrHeader := rrset[0].Header() - rrType := rrHeader.Rrtype - rrClass := rrHeader.Class - rrName := rrHeader.Name - - for _, rr := range rrset[1:] { - curRRHeader := rr.Header() - if curRRHeader.Rrtype != rrType || curRRHeader.Class != rrClass || curRRHeader.Name != rrName { - // Mismatch between the records, so this is not a valid rrset for - //signing/verifying - return false - } - } - - return true -} - -// Fqdn return the fully qualified domain name from s. -// If s is already fully qualified, it behaves as the identity function. -func Fqdn(s string) string { - if IsFqdn(s) { - return s - } - return s + "." -} - -// CanonicalName returns the domain name in canonical form. A name in canonical -// form is lowercase and fully qualified. See Section 6.2 in RFC 4034. -func CanonicalName(s string) string { - return strings.ToLower(Fqdn(s)) -} - -// Copied from the official Go code. - -// ReverseAddr returns the in-addr.arpa. or ip6.arpa. hostname of the IP -// address suitable for reverse DNS (PTR) record lookups or an error if it fails -// to parse the IP address. -func ReverseAddr(addr string) (arpa string, err error) { - ip := net.ParseIP(addr) - if ip == nil { - return "", &Error{err: "unrecognized address: " + addr} - } - if v4 := ip.To4(); v4 != nil { - buf := make([]byte, 0, net.IPv4len*4+len("in-addr.arpa.")) - // Add it, in reverse, to the buffer - for i := len(v4) - 1; i >= 0; i-- { - buf = strconv.AppendInt(buf, int64(v4[i]), 10) - buf = append(buf, '.') - } - // Append "in-addr.arpa." and return (buf already has the final .) - buf = append(buf, "in-addr.arpa."...) - return string(buf), nil - } - // Must be IPv6 - buf := make([]byte, 0, net.IPv6len*4+len("ip6.arpa.")) - // Add it, in reverse, to the buffer - for i := len(ip) - 1; i >= 0; i-- { - v := ip[i] - buf = append(buf, hexDigit[v&0xF], '.', hexDigit[v>>4], '.') - } - // Append "ip6.arpa." and return (buf already has the final .) - buf = append(buf, "ip6.arpa."...) - return string(buf), nil -} - -// String returns the string representation for the type t. -func (t Type) String() string { - if t1, ok := TypeToString[uint16(t)]; ok { - return t1 - } - return "TYPE" + strconv.Itoa(int(t)) -} - -// String returns the string representation for the class c. -func (c Class) String() string { - if s, ok := ClassToString[uint16(c)]; ok { - // Only emit mnemonics when they are unambiguous, specially ANY is in both. - if _, ok := StringToType[s]; !ok { - return s - } - } - return "CLASS" + strconv.Itoa(int(c)) -} - -// String returns the string representation for the name n. -func (n Name) String() string { - return sprintName(string(n)) -} diff --git a/vendor/github.com/miekg/dns/dns.go b/vendor/github.com/miekg/dns/dns.go deleted file mode 100644 index a88484b062..0000000000 --- a/vendor/github.com/miekg/dns/dns.go +++ /dev/null @@ -1,158 +0,0 @@ -package dns - -import ( - "encoding/hex" - "strconv" -) - -const ( - year68 = 1 << 31 // For RFC1982 (Serial Arithmetic) calculations in 32 bits. - defaultTtl = 3600 // Default internal TTL. - - // DefaultMsgSize is the standard default for messages larger than 512 bytes. - DefaultMsgSize = 4096 - // MinMsgSize is the minimal size of a DNS packet. - MinMsgSize = 512 - // MaxMsgSize is the largest possible DNS packet. - MaxMsgSize = 65535 -) - -// Error represents a DNS error. -type Error struct{ err string } - -func (e *Error) Error() string { - if e == nil { - return "dns: <nil>" - } - return "dns: " + e.err -} - -// An RR represents a resource record. -type RR interface { - // Header returns the header of an resource record. The header contains - // everything up to the rdata. - Header() *RR_Header - // String returns the text representation of the resource record. - String() string - - // copy returns a copy of the RR - copy() RR - - // len returns the length (in octets) of the compressed or uncompressed RR in wire format. - // - // If compression is nil, the uncompressed size will be returned, otherwise the compressed - // size will be returned and domain names will be added to the map for future compression. - len(off int, compression map[string]struct{}) int - - // pack packs the records RDATA into wire format. The header will - // already have been packed into msg. - pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) - - // unpack unpacks an RR from wire format. - // - // This will only be called on a new and empty RR type with only the header populated. It - // will only be called if the record's RDATA is non-empty. - unpack(msg []byte, off int) (off1 int, err error) - - // parse parses an RR from zone file format. - // - // This will only be called on a new and empty RR type with only the header populated. - parse(c *zlexer, origin string) *ParseError - - // isDuplicate returns whether the two RRs are duplicates. - isDuplicate(r2 RR) bool -} - -// RR_Header is the header all DNS resource records share. -type RR_Header struct { - Name string `dns:"cdomain-name"` - Rrtype uint16 - Class uint16 - Ttl uint32 - Rdlength uint16 // Length of data after header. -} - -// Header returns itself. This is here to make RR_Header implements the RR interface. -func (h *RR_Header) Header() *RR_Header { return h } - -// Just to implement the RR interface. -func (h *RR_Header) copy() RR { return nil } - -func (h *RR_Header) String() string { - var s string - - if h.Rrtype == TypeOPT { - s = ";" - // and maybe other things - } - - s += sprintName(h.Name) + "\t" - s += strconv.FormatInt(int64(h.Ttl), 10) + "\t" - s += Class(h.Class).String() + "\t" - s += Type(h.Rrtype).String() + "\t" - return s -} - -func (h *RR_Header) len(off int, compression map[string]struct{}) int { - l := domainNameLen(h.Name, off, compression, true) - l += 10 // rrtype(2) + class(2) + ttl(4) + rdlength(2) - return l -} - -func (h *RR_Header) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - // RR_Header has no RDATA to pack. - return off, nil -} - -func (h *RR_Header) unpack(msg []byte, off int) (int, error) { - panic("dns: internal error: unpack should never be called on RR_Header") -} - -func (h *RR_Header) parse(c *zlexer, origin string) *ParseError { - panic("dns: internal error: parse should never be called on RR_Header") -} - -// ToRFC3597 converts a known RR to the unknown RR representation from RFC 3597. -func (rr *RFC3597) ToRFC3597(r RR) error { - buf := make([]byte, Len(r)) - headerEnd, off, err := packRR(r, buf, 0, compressionMap{}, false) - if err != nil { - return err - } - buf = buf[:off] - - *rr = RFC3597{Hdr: *r.Header()} - rr.Hdr.Rdlength = uint16(off - headerEnd) - - if noRdata(rr.Hdr) { - return nil - } - - _, err = rr.unpack(buf, headerEnd) - return err -} - -// fromRFC3597 converts an unknown RR representation from RFC 3597 to the known RR type. -func (rr *RFC3597) fromRFC3597(r RR) error { - hdr := r.Header() - *hdr = rr.Hdr - - // Can't overflow uint16 as the length of Rdata is validated in (*RFC3597).parse. - // We can only get here when rr was constructed with that method. - hdr.Rdlength = uint16(hex.DecodedLen(len(rr.Rdata))) - - if noRdata(*hdr) { - // Dynamic update. - return nil - } - - // rr.pack requires an extra allocation and a copy so we just decode Rdata - // manually, it's simpler anyway. - msg, err := hex.DecodeString(rr.Rdata) - if err != nil { - return err - } - - _, err = r.unpack(msg, 0) - return err -} diff --git a/vendor/github.com/miekg/dns/dnssec.go b/vendor/github.com/miekg/dns/dnssec.go deleted file mode 100644 index 8539aae6c7..0000000000 --- a/vendor/github.com/miekg/dns/dnssec.go +++ /dev/null @@ -1,765 +0,0 @@ -package dns - -import ( - "bytes" - "crypto" - "crypto/ecdsa" - "crypto/ed25519" - "crypto/elliptic" - "crypto/rand" - "crypto/rsa" - _ "crypto/sha1" // need its init function - _ "crypto/sha256" // need its init function - _ "crypto/sha512" // need its init function - "encoding/asn1" - "encoding/binary" - "encoding/hex" - "math/big" - "sort" - "strings" - "time" -) - -// DNSSEC encryption algorithm codes. -const ( - _ uint8 = iota - RSAMD5 - DH - DSA - _ // Skip 4, RFC 6725, section 2.1 - RSASHA1 - DSANSEC3SHA1 - RSASHA1NSEC3SHA1 - RSASHA256 - _ // Skip 9, RFC 6725, section 2.1 - RSASHA512 - _ // Skip 11, RFC 6725, section 2.1 - ECCGOST - ECDSAP256SHA256 - ECDSAP384SHA384 - ED25519 - ED448 - INDIRECT uint8 = 252 - PRIVATEDNS uint8 = 253 // Private (experimental keys) - PRIVATEOID uint8 = 254 -) - -// AlgorithmToString is a map of algorithm IDs to algorithm names. -var AlgorithmToString = map[uint8]string{ - RSAMD5: "RSAMD5", - DH: "DH", - DSA: "DSA", - RSASHA1: "RSASHA1", - DSANSEC3SHA1: "DSA-NSEC3-SHA1", - RSASHA1NSEC3SHA1: "RSASHA1-NSEC3-SHA1", - RSASHA256: "RSASHA256", - RSASHA512: "RSASHA512", - ECCGOST: "ECC-GOST", - ECDSAP256SHA256: "ECDSAP256SHA256", - ECDSAP384SHA384: "ECDSAP384SHA384", - ED25519: "ED25519", - ED448: "ED448", - INDIRECT: "INDIRECT", - PRIVATEDNS: "PRIVATEDNS", - PRIVATEOID: "PRIVATEOID", -} - -// AlgorithmToHash is a map of algorithm crypto hash IDs to crypto.Hash's. -var AlgorithmToHash = map[uint8]crypto.Hash{ - RSAMD5: crypto.MD5, // Deprecated in RFC 6725 - DSA: crypto.SHA1, - RSASHA1: crypto.SHA1, - RSASHA1NSEC3SHA1: crypto.SHA1, - RSASHA256: crypto.SHA256, - ECDSAP256SHA256: crypto.SHA256, - ECDSAP384SHA384: crypto.SHA384, - RSASHA512: crypto.SHA512, - ED25519: crypto.Hash(0), -} - -// DNSSEC hashing algorithm codes. -const ( - _ uint8 = iota - SHA1 // RFC 4034 - SHA256 // RFC 4509 - GOST94 // RFC 5933 - SHA384 // Experimental - SHA512 // Experimental -) - -// HashToString is a map of hash IDs to names. -var HashToString = map[uint8]string{ - SHA1: "SHA1", - SHA256: "SHA256", - GOST94: "GOST94", - SHA384: "SHA384", - SHA512: "SHA512", -} - -// DNSKEY flag values. -const ( - SEP = 1 - REVOKE = 1 << 7 - ZONE = 1 << 8 -) - -// The RRSIG needs to be converted to wireformat with some of the rdata (the signature) missing. -type rrsigWireFmt struct { - TypeCovered uint16 - Algorithm uint8 - Labels uint8 - OrigTtl uint32 - Expiration uint32 - Inception uint32 - KeyTag uint16 - SignerName string `dns:"domain-name"` - /* No Signature */ -} - -// Used for converting DNSKEY's rdata to wirefmt. -type dnskeyWireFmt struct { - Flags uint16 - Protocol uint8 - Algorithm uint8 - PublicKey string `dns:"base64"` - /* Nothing is left out */ -} - -func divRoundUp(a, b int) int { - return (a + b - 1) / b -} - -// KeyTag calculates the keytag (or key-id) of the DNSKEY. -func (k *DNSKEY) KeyTag() uint16 { - if k == nil { - return 0 - } - var keytag int - switch k.Algorithm { - case RSAMD5: - // Look at the bottom two bytes of the modules, which the last - // item in the pubkey. - // This algorithm has been deprecated, but keep this key-tag calculation. - modulus, _ := fromBase64([]byte(k.PublicKey)) - if len(modulus) > 1 { - x := binary.BigEndian.Uint16(modulus[len(modulus)-2:]) - keytag = int(x) - } - default: - keywire := new(dnskeyWireFmt) - keywire.Flags = k.Flags - keywire.Protocol = k.Protocol - keywire.Algorithm = k.Algorithm - keywire.PublicKey = k.PublicKey - wire := make([]byte, DefaultMsgSize) - n, err := packKeyWire(keywire, wire) - if err != nil { - return 0 - } - wire = wire[:n] - for i, v := range wire { - if i&1 != 0 { - keytag += int(v) // must be larger than uint32 - } else { - keytag += int(v) << 8 - } - } - keytag += keytag >> 16 & 0xFFFF - keytag &= 0xFFFF - } - return uint16(keytag) -} - -// ToDS converts a DNSKEY record to a DS record. -func (k *DNSKEY) ToDS(h uint8) *DS { - if k == nil { - return nil - } - ds := new(DS) - ds.Hdr.Name = k.Hdr.Name - ds.Hdr.Class = k.Hdr.Class - ds.Hdr.Rrtype = TypeDS - ds.Hdr.Ttl = k.Hdr.Ttl - ds.Algorithm = k.Algorithm - ds.DigestType = h - ds.KeyTag = k.KeyTag() - - keywire := new(dnskeyWireFmt) - keywire.Flags = k.Flags - keywire.Protocol = k.Protocol - keywire.Algorithm = k.Algorithm - keywire.PublicKey = k.PublicKey - wire := make([]byte, DefaultMsgSize) - n, err := packKeyWire(keywire, wire) - if err != nil { - return nil - } - wire = wire[:n] - - owner := make([]byte, 255) - off, err1 := PackDomainName(CanonicalName(k.Hdr.Name), owner, 0, nil, false) - if err1 != nil { - return nil - } - owner = owner[:off] - // RFC4034: - // digest = digest_algorithm( DNSKEY owner name | DNSKEY RDATA); - // "|" denotes concatenation - // DNSKEY RDATA = Flags | Protocol | Algorithm | Public Key. - - var hash crypto.Hash - switch h { - case SHA1: - hash = crypto.SHA1 - case SHA256: - hash = crypto.SHA256 - case SHA384: - hash = crypto.SHA384 - case SHA512: - hash = crypto.SHA512 - default: - return nil - } - - s := hash.New() - s.Write(owner) - s.Write(wire) - ds.Digest = hex.EncodeToString(s.Sum(nil)) - return ds -} - -// ToCDNSKEY converts a DNSKEY record to a CDNSKEY record. -func (k *DNSKEY) ToCDNSKEY() *CDNSKEY { - c := &CDNSKEY{DNSKEY: *k} - c.Hdr = k.Hdr - c.Hdr.Rrtype = TypeCDNSKEY - return c -} - -// ToCDS converts a DS record to a CDS record. -func (d *DS) ToCDS() *CDS { - c := &CDS{DS: *d} - c.Hdr = d.Hdr - c.Hdr.Rrtype = TypeCDS - return c -} - -// Sign signs an RRSet. The signature needs to be filled in with the values: -// Inception, Expiration, KeyTag, SignerName and Algorithm. The rest is copied -// from the RRset. Sign returns a non-nill error when the signing went OK. -// There is no check if RRSet is a proper (RFC 2181) RRSet. If OrigTTL is non -// zero, it is used as-is, otherwise the TTL of the RRset is used as the -// OrigTTL. -func (rr *RRSIG) Sign(k crypto.Signer, rrset []RR) error { - if k == nil { - return ErrPrivKey - } - // s.Inception and s.Expiration may be 0 (rollover etc.), the rest must be set - if rr.KeyTag == 0 || len(rr.SignerName) == 0 || rr.Algorithm == 0 { - return ErrKey - } - - h0 := rrset[0].Header() - rr.Hdr.Rrtype = TypeRRSIG - rr.Hdr.Name = h0.Name - rr.Hdr.Class = h0.Class - if rr.OrigTtl == 0 { // If set don't override - rr.OrigTtl = h0.Ttl - } - rr.TypeCovered = h0.Rrtype - rr.Labels = uint8(CountLabel(h0.Name)) - - if strings.HasPrefix(h0.Name, "*") { - rr.Labels-- // wildcard, remove from label count - } - - sigwire := new(rrsigWireFmt) - sigwire.TypeCovered = rr.TypeCovered - sigwire.Algorithm = rr.Algorithm - sigwire.Labels = rr.Labels - sigwire.OrigTtl = rr.OrigTtl - sigwire.Expiration = rr.Expiration - sigwire.Inception = rr.Inception - sigwire.KeyTag = rr.KeyTag - // For signing, lowercase this name - sigwire.SignerName = CanonicalName(rr.SignerName) - - // Create the desired binary blob - signdata := make([]byte, DefaultMsgSize) - n, err := packSigWire(sigwire, signdata) - if err != nil { - return err - } - signdata = signdata[:n] - wire, err := rawSignatureData(rrset, rr) - if err != nil { - return err - } - - hash, ok := AlgorithmToHash[rr.Algorithm] - if !ok { - return ErrAlg - } - - switch rr.Algorithm { - case ED25519: - // ed25519 signs the raw message and performs hashing internally. - // All other supported signature schemes operate over the pre-hashed - // message, and thus ed25519 must be handled separately here. - // - // The raw message is passed directly into sign and crypto.Hash(0) is - // used to signal to the crypto.Signer that the data has not been hashed. - signature, err := sign(k, append(signdata, wire...), crypto.Hash(0), rr.Algorithm) - if err != nil { - return err - } - - rr.Signature = toBase64(signature) - return nil - case RSAMD5, DSA, DSANSEC3SHA1: - // See RFC 6944. - return ErrAlg - default: - h := hash.New() - h.Write(signdata) - h.Write(wire) - - signature, err := sign(k, h.Sum(nil), hash, rr.Algorithm) - if err != nil { - return err - } - - rr.Signature = toBase64(signature) - return nil - } -} - -func sign(k crypto.Signer, hashed []byte, hash crypto.Hash, alg uint8) ([]byte, error) { - signature, err := k.Sign(rand.Reader, hashed, hash) - if err != nil { - return nil, err - } - - switch alg { - case RSASHA1, RSASHA1NSEC3SHA1, RSASHA256, RSASHA512: - return signature, nil - case ECDSAP256SHA256, ECDSAP384SHA384: - ecdsaSignature := &struct { - R, S *big.Int - }{} - if _, err := asn1.Unmarshal(signature, ecdsaSignature); err != nil { - return nil, err - } - - var intlen int - switch alg { - case ECDSAP256SHA256: - intlen = 32 - case ECDSAP384SHA384: - intlen = 48 - } - - signature := intToBytes(ecdsaSignature.R, intlen) - signature = append(signature, intToBytes(ecdsaSignature.S, intlen)...) - return signature, nil - case ED25519: - return signature, nil - default: - return nil, ErrAlg - } -} - -// Verify validates an RRSet with the signature and key. This is only the -// cryptographic test, the signature validity period must be checked separately. -// This function copies the rdata of some RRs (to lowercase domain names) for the validation to work. -// It also checks that the Zone Key bit (RFC 4034 2.1.1) is set on the DNSKEY -// and that the Protocol field is set to 3 (RFC 4034 2.1.2). -func (rr *RRSIG) Verify(k *DNSKEY, rrset []RR) error { - // First the easy checks - if !IsRRset(rrset) { - return ErrRRset - } - if rr.KeyTag != k.KeyTag() { - return ErrKey - } - if rr.Hdr.Class != k.Hdr.Class { - return ErrKey - } - if rr.Algorithm != k.Algorithm { - return ErrKey - } - if !strings.EqualFold(rr.SignerName, k.Hdr.Name) { - return ErrKey - } - if k.Protocol != 3 { - return ErrKey - } - // RFC 4034 2.1.1 If bit 7 has value 0, then the DNSKEY record holds some - // other type of DNS public key and MUST NOT be used to verify RRSIGs that - // cover RRsets. - if k.Flags&ZONE == 0 { - return ErrKey - } - - // IsRRset checked that we have at least one RR and that the RRs in - // the set have consistent type, class, and name. Also check that type and - // class matches the RRSIG record. - if h0 := rrset[0].Header(); h0.Class != rr.Hdr.Class || h0.Rrtype != rr.TypeCovered { - return ErrRRset - } - - // RFC 4035 5.3.2. Reconstructing the Signed Data - // Copy the sig, except the rrsig data - sigwire := new(rrsigWireFmt) - sigwire.TypeCovered = rr.TypeCovered - sigwire.Algorithm = rr.Algorithm - sigwire.Labels = rr.Labels - sigwire.OrigTtl = rr.OrigTtl - sigwire.Expiration = rr.Expiration - sigwire.Inception = rr.Inception - sigwire.KeyTag = rr.KeyTag - sigwire.SignerName = CanonicalName(rr.SignerName) - // Create the desired binary blob - signeddata := make([]byte, DefaultMsgSize) - n, err := packSigWire(sigwire, signeddata) - if err != nil { - return err - } - signeddata = signeddata[:n] - wire, err := rawSignatureData(rrset, rr) - if err != nil { - return err - } - - sigbuf := rr.sigBuf() // Get the binary signature data - if rr.Algorithm == PRIVATEDNS { // PRIVATEOID - // TODO(miek) - // remove the domain name and assume its ours? - } - - hash, ok := AlgorithmToHash[rr.Algorithm] - if !ok { - return ErrAlg - } - - switch rr.Algorithm { - case RSASHA1, RSASHA1NSEC3SHA1, RSASHA256, RSASHA512: - // TODO(mg): this can be done quicker, ie. cache the pubkey data somewhere?? - pubkey := k.publicKeyRSA() // Get the key - if pubkey == nil { - return ErrKey - } - - h := hash.New() - h.Write(signeddata) - h.Write(wire) - return rsa.VerifyPKCS1v15(pubkey, hash, h.Sum(nil), sigbuf) - - case ECDSAP256SHA256, ECDSAP384SHA384: - pubkey := k.publicKeyECDSA() - if pubkey == nil { - return ErrKey - } - - // Split sigbuf into the r and s coordinates - r := new(big.Int).SetBytes(sigbuf[:len(sigbuf)/2]) - s := new(big.Int).SetBytes(sigbuf[len(sigbuf)/2:]) - - h := hash.New() - h.Write(signeddata) - h.Write(wire) - if ecdsa.Verify(pubkey, h.Sum(nil), r, s) { - return nil - } - return ErrSig - - case ED25519: - pubkey := k.publicKeyED25519() - if pubkey == nil { - return ErrKey - } - - if ed25519.Verify(pubkey, append(signeddata, wire...), sigbuf) { - return nil - } - return ErrSig - - default: - return ErrAlg - } -} - -// ValidityPeriod uses RFC1982 serial arithmetic to calculate -// if a signature period is valid. If t is the zero time, the -// current time is taken other t is. Returns true if the signature -// is valid at the given time, otherwise returns false. -func (rr *RRSIG) ValidityPeriod(t time.Time) bool { - var utc int64 - if t.IsZero() { - utc = time.Now().UTC().Unix() - } else { - utc = t.UTC().Unix() - } - modi := (int64(rr.Inception) - utc) / year68 - mode := (int64(rr.Expiration) - utc) / year68 - ti := int64(rr.Inception) + modi*year68 - te := int64(rr.Expiration) + mode*year68 - return ti <= utc && utc <= te -} - -// Return the signatures base64 encoding sigdata as a byte slice. -func (rr *RRSIG) sigBuf() []byte { - sigbuf, err := fromBase64([]byte(rr.Signature)) - if err != nil { - return nil - } - return sigbuf -} - -// publicKeyRSA returns the RSA public key from a DNSKEY record. -func (k *DNSKEY) publicKeyRSA() *rsa.PublicKey { - keybuf, err := fromBase64([]byte(k.PublicKey)) - if err != nil { - return nil - } - - if len(keybuf) < 1+1+64 { - // Exponent must be at least 1 byte and modulus at least 64 - return nil - } - - // RFC 2537/3110, section 2. RSA Public KEY Resource Records - // Length is in the 0th byte, unless its zero, then it - // it in bytes 1 and 2 and its a 16 bit number - explen := uint16(keybuf[0]) - keyoff := 1 - if explen == 0 { - explen = uint16(keybuf[1])<<8 | uint16(keybuf[2]) - keyoff = 3 - } - - if explen > 4 || explen == 0 || keybuf[keyoff] == 0 { - // Exponent larger than supported by the crypto package, - // empty, or contains prohibited leading zero. - return nil - } - - modoff := keyoff + int(explen) - modlen := len(keybuf) - modoff - if modlen < 64 || modlen > 512 || keybuf[modoff] == 0 { - // Modulus is too small, large, or contains prohibited leading zero. - return nil - } - - pubkey := new(rsa.PublicKey) - - var expo uint64 - // The exponent of length explen is between keyoff and modoff. - for _, v := range keybuf[keyoff:modoff] { - expo <<= 8 - expo |= uint64(v) - } - if expo > 1<<31-1 { - // Larger exponent than supported by the crypto package. - return nil - } - - pubkey.E = int(expo) - pubkey.N = new(big.Int).SetBytes(keybuf[modoff:]) - return pubkey -} - -// publicKeyECDSA returns the Curve public key from the DNSKEY record. -func (k *DNSKEY) publicKeyECDSA() *ecdsa.PublicKey { - keybuf, err := fromBase64([]byte(k.PublicKey)) - if err != nil { - return nil - } - pubkey := new(ecdsa.PublicKey) - switch k.Algorithm { - case ECDSAP256SHA256: - pubkey.Curve = elliptic.P256() - if len(keybuf) != 64 { - // wrongly encoded key - return nil - } - case ECDSAP384SHA384: - pubkey.Curve = elliptic.P384() - if len(keybuf) != 96 { - // Wrongly encoded key - return nil - } - } - pubkey.X = new(big.Int).SetBytes(keybuf[:len(keybuf)/2]) - pubkey.Y = new(big.Int).SetBytes(keybuf[len(keybuf)/2:]) - return pubkey -} - -func (k *DNSKEY) publicKeyED25519() ed25519.PublicKey { - keybuf, err := fromBase64([]byte(k.PublicKey)) - if err != nil { - return nil - } - if len(keybuf) != ed25519.PublicKeySize { - return nil - } - return keybuf -} - -type wireSlice [][]byte - -func (p wireSlice) Len() int { return len(p) } -func (p wireSlice) Swap(i, j int) { p[i], p[j] = p[j], p[i] } -func (p wireSlice) Less(i, j int) bool { - _, ioff, _ := UnpackDomainName(p[i], 0) - _, joff, _ := UnpackDomainName(p[j], 0) - return bytes.Compare(p[i][ioff+10:], p[j][joff+10:]) < 0 -} - -// Return the raw signature data. -func rawSignatureData(rrset []RR, s *RRSIG) (buf []byte, err error) { - wires := make(wireSlice, len(rrset)) - for i, r := range rrset { - r1 := r.copy() - h := r1.Header() - h.Ttl = s.OrigTtl - labels := SplitDomainName(h.Name) - // 6.2. Canonical RR Form. (4) - wildcards - if len(labels) > int(s.Labels) { - // Wildcard - h.Name = "*." + strings.Join(labels[len(labels)-int(s.Labels):], ".") + "." - } - // RFC 4034: 6.2. Canonical RR Form. (2) - domain name to lowercase - h.Name = CanonicalName(h.Name) - // 6.2. Canonical RR Form. (3) - domain rdata to lowercase. - // NS, MD, MF, CNAME, SOA, MB, MG, MR, PTR, - // HINFO, MINFO, MX, RP, AFSDB, RT, SIG, PX, NXT, NAPTR, KX, - // SRV, DNAME, A6 - // - // RFC 6840 - Clarifications and Implementation Notes for DNS Security (DNSSEC): - // Section 6.2 of [RFC4034] also erroneously lists HINFO as a record - // that needs conversion to lowercase, and twice at that. Since HINFO - // records contain no domain names, they are not subject to case - // conversion. - switch x := r1.(type) { - case *NS: - x.Ns = CanonicalName(x.Ns) - case *MD: - x.Md = CanonicalName(x.Md) - case *MF: - x.Mf = CanonicalName(x.Mf) - case *CNAME: - x.Target = CanonicalName(x.Target) - case *SOA: - x.Ns = CanonicalName(x.Ns) - x.Mbox = CanonicalName(x.Mbox) - case *MB: - x.Mb = CanonicalName(x.Mb) - case *MG: - x.Mg = CanonicalName(x.Mg) - case *MR: - x.Mr = CanonicalName(x.Mr) - case *PTR: - x.Ptr = CanonicalName(x.Ptr) - case *MINFO: - x.Rmail = CanonicalName(x.Rmail) - x.Email = CanonicalName(x.Email) - case *MX: - x.Mx = CanonicalName(x.Mx) - case *RP: - x.Mbox = CanonicalName(x.Mbox) - x.Txt = CanonicalName(x.Txt) - case *AFSDB: - x.Hostname = CanonicalName(x.Hostname) - case *RT: - x.Host = CanonicalName(x.Host) - case *SIG: - x.SignerName = CanonicalName(x.SignerName) - case *PX: - x.Map822 = CanonicalName(x.Map822) - x.Mapx400 = CanonicalName(x.Mapx400) - case *NAPTR: - x.Replacement = CanonicalName(x.Replacement) - case *KX: - x.Exchanger = CanonicalName(x.Exchanger) - case *SRV: - x.Target = CanonicalName(x.Target) - case *DNAME: - x.Target = CanonicalName(x.Target) - } - // 6.2. Canonical RR Form. (5) - origTTL - wire := make([]byte, Len(r1)+1) // +1 to be safe(r) - off, err1 := PackRR(r1, wire, 0, nil, false) - if err1 != nil { - return nil, err1 - } - wire = wire[:off] - wires[i] = wire - } - sort.Sort(wires) - for i, wire := range wires { - if i > 0 && bytes.Equal(wire, wires[i-1]) { - continue - } - buf = append(buf, wire...) - } - return buf, nil -} - -func packSigWire(sw *rrsigWireFmt, msg []byte) (int, error) { - // copied from zmsg.go RRSIG packing - off, err := packUint16(sw.TypeCovered, msg, 0) - if err != nil { - return off, err - } - off, err = packUint8(sw.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(sw.Labels, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(sw.OrigTtl, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(sw.Expiration, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(sw.Inception, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(sw.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = PackDomainName(sw.SignerName, msg, off, nil, false) - if err != nil { - return off, err - } - return off, nil -} - -func packKeyWire(dw *dnskeyWireFmt, msg []byte) (int, error) { - // copied from zmsg.go DNSKEY packing - off, err := packUint16(dw.Flags, msg, 0) - if err != nil { - return off, err - } - off, err = packUint8(dw.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(dw.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(dw.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} diff --git a/vendor/github.com/miekg/dns/dnssec_keygen.go b/vendor/github.com/miekg/dns/dnssec_keygen.go deleted file mode 100644 index b8124b5618..0000000000 --- a/vendor/github.com/miekg/dns/dnssec_keygen.go +++ /dev/null @@ -1,139 +0,0 @@ -package dns - -import ( - "crypto" - "crypto/ecdsa" - "crypto/ed25519" - "crypto/elliptic" - "crypto/rand" - "crypto/rsa" - "math/big" -) - -// Generate generates a DNSKEY of the given bit size. -// The public part is put inside the DNSKEY record. -// The Algorithm in the key must be set as this will define -// what kind of DNSKEY will be generated. -// The ECDSA algorithms imply a fixed keysize, in that case -// bits should be set to the size of the algorithm. -func (k *DNSKEY) Generate(bits int) (crypto.PrivateKey, error) { - switch k.Algorithm { - case RSASHA1, RSASHA256, RSASHA1NSEC3SHA1: - if bits < 512 || bits > 4096 { - return nil, ErrKeySize - } - case RSASHA512: - if bits < 1024 || bits > 4096 { - return nil, ErrKeySize - } - case ECDSAP256SHA256: - if bits != 256 { - return nil, ErrKeySize - } - case ECDSAP384SHA384: - if bits != 384 { - return nil, ErrKeySize - } - case ED25519: - if bits != 256 { - return nil, ErrKeySize - } - default: - return nil, ErrAlg - } - - switch k.Algorithm { - case RSASHA1, RSASHA256, RSASHA512, RSASHA1NSEC3SHA1: - priv, err := rsa.GenerateKey(rand.Reader, bits) - if err != nil { - return nil, err - } - k.setPublicKeyRSA(priv.PublicKey.E, priv.PublicKey.N) - return priv, nil - case ECDSAP256SHA256, ECDSAP384SHA384: - var c elliptic.Curve - switch k.Algorithm { - case ECDSAP256SHA256: - c = elliptic.P256() - case ECDSAP384SHA384: - c = elliptic.P384() - } - priv, err := ecdsa.GenerateKey(c, rand.Reader) - if err != nil { - return nil, err - } - k.setPublicKeyECDSA(priv.PublicKey.X, priv.PublicKey.Y) - return priv, nil - case ED25519: - pub, priv, err := ed25519.GenerateKey(rand.Reader) - if err != nil { - return nil, err - } - k.setPublicKeyED25519(pub) - return priv, nil - default: - return nil, ErrAlg - } -} - -// Set the public key (the value E and N) -func (k *DNSKEY) setPublicKeyRSA(_E int, _N *big.Int) bool { - if _E == 0 || _N == nil { - return false - } - buf := exponentToBuf(_E) - buf = append(buf, _N.Bytes()...) - k.PublicKey = toBase64(buf) - return true -} - -// Set the public key for Elliptic Curves -func (k *DNSKEY) setPublicKeyECDSA(_X, _Y *big.Int) bool { - if _X == nil || _Y == nil { - return false - } - var intlen int - switch k.Algorithm { - case ECDSAP256SHA256: - intlen = 32 - case ECDSAP384SHA384: - intlen = 48 - } - k.PublicKey = toBase64(curveToBuf(_X, _Y, intlen)) - return true -} - -// Set the public key for Ed25519 -func (k *DNSKEY) setPublicKeyED25519(_K ed25519.PublicKey) bool { - if _K == nil { - return false - } - k.PublicKey = toBase64(_K) - return true -} - -// Set the public key (the values E and N) for RSA -// RFC 3110: Section 2. RSA Public KEY Resource Records -func exponentToBuf(_E int) []byte { - var buf []byte - i := big.NewInt(int64(_E)).Bytes() - if len(i) < 256 { - buf = make([]byte, 1, 1+len(i)) - buf[0] = uint8(len(i)) - } else { - buf = make([]byte, 3, 3+len(i)) - buf[0] = 0 - buf[1] = uint8(len(i) >> 8) - buf[2] = uint8(len(i)) - } - buf = append(buf, i...) - return buf -} - -// Set the public key for X and Y for Curve. The two -// values are just concatenated. -func curveToBuf(_X, _Y *big.Int, intlen int) []byte { - buf := intToBytes(_X, intlen) - buf = append(buf, intToBytes(_Y, intlen)...) - return buf -} diff --git a/vendor/github.com/miekg/dns/dnssec_keyscan.go b/vendor/github.com/miekg/dns/dnssec_keyscan.go deleted file mode 100644 index f79658169f..0000000000 --- a/vendor/github.com/miekg/dns/dnssec_keyscan.go +++ /dev/null @@ -1,309 +0,0 @@ -package dns - -import ( - "bufio" - "crypto" - "crypto/ecdsa" - "crypto/ed25519" - "crypto/rsa" - "io" - "math/big" - "strconv" - "strings" -) - -// NewPrivateKey returns a PrivateKey by parsing the string s. -// s should be in the same form of the BIND private key files. -func (k *DNSKEY) NewPrivateKey(s string) (crypto.PrivateKey, error) { - if s == "" || s[len(s)-1] != '\n' { // We need a closing newline - return k.ReadPrivateKey(strings.NewReader(s+"\n"), "") - } - return k.ReadPrivateKey(strings.NewReader(s), "") -} - -// ReadPrivateKey reads a private key from the io.Reader q. The string file is -// only used in error reporting. -// The public key must be known, because some cryptographic algorithms embed -// the public inside the privatekey. -func (k *DNSKEY) ReadPrivateKey(q io.Reader, file string) (crypto.PrivateKey, error) { - m, err := parseKey(q, file) - if m == nil { - return nil, err - } - if _, ok := m["private-key-format"]; !ok { - return nil, ErrPrivKey - } - if m["private-key-format"] != "v1.2" && m["private-key-format"] != "v1.3" { - return nil, ErrPrivKey - } - // TODO(mg): check if the pubkey matches the private key - algo, err := strconv.ParseUint(strings.SplitN(m["algorithm"], " ", 2)[0], 10, 8) - if err != nil { - return nil, ErrPrivKey - } - switch uint8(algo) { - case RSASHA1, RSASHA1NSEC3SHA1, RSASHA256, RSASHA512: - priv, err := readPrivateKeyRSA(m) - if err != nil { - return nil, err - } - pub := k.publicKeyRSA() - if pub == nil { - return nil, ErrKey - } - priv.PublicKey = *pub - return priv, nil - case ECDSAP256SHA256, ECDSAP384SHA384: - priv, err := readPrivateKeyECDSA(m) - if err != nil { - return nil, err - } - pub := k.publicKeyECDSA() - if pub == nil { - return nil, ErrKey - } - priv.PublicKey = *pub - return priv, nil - case ED25519: - return readPrivateKeyED25519(m) - default: - return nil, ErrAlg - } -} - -// Read a private key (file) string and create a public key. Return the private key. -func readPrivateKeyRSA(m map[string]string) (*rsa.PrivateKey, error) { - p := new(rsa.PrivateKey) - p.Primes = []*big.Int{nil, nil} - for k, v := range m { - switch k { - case "modulus", "publicexponent", "privateexponent", "prime1", "prime2": - v1, err := fromBase64([]byte(v)) - if err != nil { - return nil, err - } - switch k { - case "modulus": - p.PublicKey.N = new(big.Int).SetBytes(v1) - case "publicexponent": - i := new(big.Int).SetBytes(v1) - p.PublicKey.E = int(i.Int64()) // int64 should be large enough - case "privateexponent": - p.D = new(big.Int).SetBytes(v1) - case "prime1": - p.Primes[0] = new(big.Int).SetBytes(v1) - case "prime2": - p.Primes[1] = new(big.Int).SetBytes(v1) - } - case "exponent1", "exponent2", "coefficient": - // not used in Go (yet) - case "created", "publish", "activate": - // not used in Go (yet) - } - } - return p, nil -} - -func readPrivateKeyECDSA(m map[string]string) (*ecdsa.PrivateKey, error) { - p := new(ecdsa.PrivateKey) - p.D = new(big.Int) - // TODO: validate that the required flags are present - for k, v := range m { - switch k { - case "privatekey": - v1, err := fromBase64([]byte(v)) - if err != nil { - return nil, err - } - p.D.SetBytes(v1) - case "created", "publish", "activate": - /* not used in Go (yet) */ - } - } - return p, nil -} - -func readPrivateKeyED25519(m map[string]string) (ed25519.PrivateKey, error) { - var p ed25519.PrivateKey - // TODO: validate that the required flags are present - for k, v := range m { - switch k { - case "privatekey": - p1, err := fromBase64([]byte(v)) - if err != nil { - return nil, err - } - if len(p1) != ed25519.SeedSize { - return nil, ErrPrivKey - } - p = ed25519.NewKeyFromSeed(p1) - case "created", "publish", "activate": - /* not used in Go (yet) */ - } - } - return p, nil -} - -// parseKey reads a private key from r. It returns a map[string]string, -// with the key-value pairs, or an error when the file is not correct. -func parseKey(r io.Reader, file string) (map[string]string, error) { - m := make(map[string]string) - var k string - - c := newKLexer(r) - - for l, ok := c.Next(); ok; l, ok = c.Next() { - // It should alternate - switch l.value { - case zKey: - k = l.token - case zValue: - if k == "" { - return nil, &ParseError{file, "no private key seen", l} - } - - m[strings.ToLower(k)] = l.token - k = "" - } - } - - // Surface any read errors from r. - if err := c.Err(); err != nil { - return nil, &ParseError{file: file, err: err.Error()} - } - - return m, nil -} - -type klexer struct { - br io.ByteReader - - readErr error - - line int - column int - - key bool - - eol bool // end-of-line -} - -func newKLexer(r io.Reader) *klexer { - br, ok := r.(io.ByteReader) - if !ok { - br = bufio.NewReaderSize(r, 1024) - } - - return &klexer{ - br: br, - - line: 1, - - key: true, - } -} - -func (kl *klexer) Err() error { - if kl.readErr == io.EOF { - return nil - } - - return kl.readErr -} - -// readByte returns the next byte from the input -func (kl *klexer) readByte() (byte, bool) { - if kl.readErr != nil { - return 0, false - } - - c, err := kl.br.ReadByte() - if err != nil { - kl.readErr = err - return 0, false - } - - // delay the newline handling until the next token is delivered, - // fixes off-by-one errors when reporting a parse error. - if kl.eol { - kl.line++ - kl.column = 0 - kl.eol = false - } - - if c == '\n' { - kl.eol = true - } else { - kl.column++ - } - - return c, true -} - -func (kl *klexer) Next() (lex, bool) { - var ( - l lex - - str strings.Builder - - commt bool - ) - - for x, ok := kl.readByte(); ok; x, ok = kl.readByte() { - l.line, l.column = kl.line, kl.column - - switch x { - case ':': - if commt || !kl.key { - break - } - - kl.key = false - - // Next token is a space, eat it - kl.readByte() - - l.value = zKey - l.token = str.String() - return l, true - case ';': - commt = true - case '\n': - if commt { - // Reset a comment - commt = false - } - - if kl.key && str.Len() == 0 { - // ignore empty lines - break - } - - kl.key = true - - l.value = zValue - l.token = str.String() - return l, true - default: - if commt { - break - } - - str.WriteByte(x) - } - } - - if kl.readErr != nil && kl.readErr != io.EOF { - // Don't return any tokens after a read error occurs. - return lex{value: zEOF}, false - } - - if str.Len() > 0 { - // Send remainder - l.value = zValue - l.token = str.String() - return l, true - } - - return lex{value: zEOF}, false -} diff --git a/vendor/github.com/miekg/dns/dnssec_privkey.go b/vendor/github.com/miekg/dns/dnssec_privkey.go deleted file mode 100644 index f160772964..0000000000 --- a/vendor/github.com/miekg/dns/dnssec_privkey.go +++ /dev/null @@ -1,77 +0,0 @@ -package dns - -import ( - "crypto" - "crypto/ecdsa" - "crypto/ed25519" - "crypto/rsa" - "math/big" - "strconv" -) - -const format = "Private-key-format: v1.3\n" - -var bigIntOne = big.NewInt(1) - -// PrivateKeyString converts a PrivateKey to a string. This string has the same -// format as the private-key-file of BIND9 (Private-key-format: v1.3). -// It needs some info from the key (the algorithm), so its a method of the DNSKEY. -// It supports *rsa.PrivateKey, *ecdsa.PrivateKey and ed25519.PrivateKey. -func (r *DNSKEY) PrivateKeyString(p crypto.PrivateKey) string { - algorithm := strconv.Itoa(int(r.Algorithm)) - algorithm += " (" + AlgorithmToString[r.Algorithm] + ")" - - switch p := p.(type) { - case *rsa.PrivateKey: - modulus := toBase64(p.PublicKey.N.Bytes()) - e := big.NewInt(int64(p.PublicKey.E)) - publicExponent := toBase64(e.Bytes()) - privateExponent := toBase64(p.D.Bytes()) - prime1 := toBase64(p.Primes[0].Bytes()) - prime2 := toBase64(p.Primes[1].Bytes()) - // Calculate Exponent1/2 and Coefficient as per: http://en.wikipedia.org/wiki/RSA#Using_the_Chinese_remainder_algorithm - // and from: http://code.google.com/p/go/issues/detail?id=987 - p1 := new(big.Int).Sub(p.Primes[0], bigIntOne) - q1 := new(big.Int).Sub(p.Primes[1], bigIntOne) - exp1 := new(big.Int).Mod(p.D, p1) - exp2 := new(big.Int).Mod(p.D, q1) - coeff := new(big.Int).ModInverse(p.Primes[1], p.Primes[0]) - - exponent1 := toBase64(exp1.Bytes()) - exponent2 := toBase64(exp2.Bytes()) - coefficient := toBase64(coeff.Bytes()) - - return format + - "Algorithm: " + algorithm + "\n" + - "Modulus: " + modulus + "\n" + - "PublicExponent: " + publicExponent + "\n" + - "PrivateExponent: " + privateExponent + "\n" + - "Prime1: " + prime1 + "\n" + - "Prime2: " + prime2 + "\n" + - "Exponent1: " + exponent1 + "\n" + - "Exponent2: " + exponent2 + "\n" + - "Coefficient: " + coefficient + "\n" - - case *ecdsa.PrivateKey: - var intlen int - switch r.Algorithm { - case ECDSAP256SHA256: - intlen = 32 - case ECDSAP384SHA384: - intlen = 48 - } - private := toBase64(intToBytes(p.D, intlen)) - return format + - "Algorithm: " + algorithm + "\n" + - "PrivateKey: " + private + "\n" - - case ed25519.PrivateKey: - private := toBase64(p.Seed()) - return format + - "Algorithm: " + algorithm + "\n" + - "PrivateKey: " + private + "\n" - - default: - return "" - } -} diff --git a/vendor/github.com/miekg/dns/doc.go b/vendor/github.com/miekg/dns/doc.go deleted file mode 100644 index 5c83f82e49..0000000000 --- a/vendor/github.com/miekg/dns/doc.go +++ /dev/null @@ -1,292 +0,0 @@ -/* -Package dns implements a full featured interface to the Domain Name System. -Both server- and client-side programming is supported. The package allows -complete control over what is sent out to the DNS. The API follows the -less-is-more principle, by presenting a small, clean interface. - -It supports (asynchronous) querying/replying, incoming/outgoing zone transfers, -TSIG, EDNS0, dynamic updates, notifies and DNSSEC validation/signing. - -Note that domain names MUST be fully qualified before sending them, unqualified -names in a message will result in a packing failure. - -Resource records are native types. They are not stored in wire format. Basic -usage pattern for creating a new resource record: - - r := new(dns.MX) - r.Hdr = dns.RR_Header{Name: "miek.nl.", Rrtype: dns.TypeMX, Class: dns.ClassINET, Ttl: 3600} - r.Preference = 10 - r.Mx = "mx.miek.nl." - -Or directly from a string: - - mx, err := dns.NewRR("miek.nl. 3600 IN MX 10 mx.miek.nl.") - -Or when the default origin (.) and TTL (3600) and class (IN) suit you: - - mx, err := dns.NewRR("miek.nl MX 10 mx.miek.nl") - -Or even: - - mx, err := dns.NewRR("$ORIGIN nl.\nmiek 1H IN MX 10 mx.miek") - -In the DNS messages are exchanged, these messages contain resource records -(sets). Use pattern for creating a message: - - m := new(dns.Msg) - m.SetQuestion("miek.nl.", dns.TypeMX) - -Or when not certain if the domain name is fully qualified: - - m.SetQuestion(dns.Fqdn("miek.nl"), dns.TypeMX) - -The message m is now a message with the question section set to ask the MX -records for the miek.nl. zone. - -The following is slightly more verbose, but more flexible: - - m1 := new(dns.Msg) - m1.Id = dns.Id() - m1.RecursionDesired = true - m1.Question = make([]dns.Question, 1) - m1.Question[0] = dns.Question{"miek.nl.", dns.TypeMX, dns.ClassINET} - -After creating a message it can be sent. Basic use pattern for synchronous -querying the DNS at a server configured on 127.0.0.1 and port 53: - - c := new(dns.Client) - in, rtt, err := c.Exchange(m1, "127.0.0.1:53") - -Suppressing multiple outstanding queries (with the same question, type and -class) is as easy as setting: - - c.SingleInflight = true - -More advanced options are available using a net.Dialer and the corresponding API. -For example it is possible to set a timeout, or to specify a source IP address -and port to use for the connection: - - c := new(dns.Client) - laddr := net.UDPAddr{ - IP: net.ParseIP("[::1]"), - Port: 12345, - Zone: "", - } - c.Dialer := &net.Dialer{ - Timeout: 200 * time.Millisecond, - LocalAddr: &laddr, - } - in, rtt, err := c.Exchange(m1, "8.8.8.8:53") - -If these "advanced" features are not needed, a simple UDP query can be sent, -with: - - in, err := dns.Exchange(m1, "127.0.0.1:53") - -When this functions returns you will get DNS message. A DNS message consists -out of four sections. -The question section: in.Question, the answer section: in.Answer, -the authority section: in.Ns and the additional section: in.Extra. - -Each of these sections (except the Question section) contain a []RR. Basic -use pattern for accessing the rdata of a TXT RR as the first RR in -the Answer section: - - if t, ok := in.Answer[0].(*dns.TXT); ok { - // do something with t.Txt - } - -Domain Name and TXT Character String Representations - -Both domain names and TXT character strings are converted to presentation form -both when unpacked and when converted to strings. - -For TXT character strings, tabs, carriage returns and line feeds will be -converted to \t, \r and \n respectively. Back slashes and quotations marks will -be escaped. Bytes below 32 and above 127 will be converted to \DDD form. - -For domain names, in addition to the above rules brackets, periods, spaces, -semicolons and the at symbol are escaped. - -DNSSEC - -DNSSEC (DNS Security Extension) adds a layer of security to the DNS. It uses -public key cryptography to sign resource records. The public keys are stored in -DNSKEY records and the signatures in RRSIG records. - -Requesting DNSSEC information for a zone is done by adding the DO (DNSSEC OK) -bit to a request. - - m := new(dns.Msg) - m.SetEdns0(4096, true) - -Signature generation, signature verification and key generation are all supported. - -DYNAMIC UPDATES - -Dynamic updates reuses the DNS message format, but renames three of the -sections. Question is Zone, Answer is Prerequisite, Authority is Update, only -the Additional is not renamed. See RFC 2136 for the gory details. - -You can set a rather complex set of rules for the existence of absence of -certain resource records or names in a zone to specify if resource records -should be added or removed. The table from RFC 2136 supplemented with the Go -DNS function shows which functions exist to specify the prerequisites. - - 3.2.4 - Table Of Metavalues Used In Prerequisite Section - - CLASS TYPE RDATA Meaning Function - -------------------------------------------------------------- - ANY ANY empty Name is in use dns.NameUsed - ANY rrset empty RRset exists (value indep) dns.RRsetUsed - NONE ANY empty Name is not in use dns.NameNotUsed - NONE rrset empty RRset does not exist dns.RRsetNotUsed - zone rrset rr RRset exists (value dep) dns.Used - -The prerequisite section can also be left empty. If you have decided on the -prerequisites you can tell what RRs should be added or deleted. The next table -shows the options you have and what functions to call. - - 3.4.2.6 - Table Of Metavalues Used In Update Section - - CLASS TYPE RDATA Meaning Function - --------------------------------------------------------------- - ANY ANY empty Delete all RRsets from name dns.RemoveName - ANY rrset empty Delete an RRset dns.RemoveRRset - NONE rrset rr Delete an RR from RRset dns.Remove - zone rrset rr Add to an RRset dns.Insert - -TRANSACTION SIGNATURE - -An TSIG or transaction signature adds a HMAC TSIG record to each message sent. -The supported algorithms include: HmacSHA1, HmacSHA256 and HmacSHA512. - -Basic use pattern when querying with a TSIG name "axfr." (note that these key names -must be fully qualified - as they are domain names) and the base64 secret -"so6ZGir4GPAqINNh9U5c3A==": - -If an incoming message contains a TSIG record it MUST be the last record in -the additional section (RFC2845 3.2). This means that you should make the -call to SetTsig last, right before executing the query. If you make any -changes to the RRset after calling SetTsig() the signature will be incorrect. - - c := new(dns.Client) - c.TsigSecret = map[string]string{"axfr.": "so6ZGir4GPAqINNh9U5c3A=="} - m := new(dns.Msg) - m.SetQuestion("miek.nl.", dns.TypeMX) - m.SetTsig("axfr.", dns.HmacSHA256, 300, time.Now().Unix()) - ... - // When sending the TSIG RR is calculated and filled in before sending - -When requesting an zone transfer (almost all TSIG usage is when requesting zone -transfers), with TSIG, this is the basic use pattern. In this example we -request an AXFR for miek.nl. with TSIG key named "axfr." and secret -"so6ZGir4GPAqINNh9U5c3A==" and using the server 176.58.119.54: - - t := new(dns.Transfer) - m := new(dns.Msg) - t.TsigSecret = map[string]string{"axfr.": "so6ZGir4GPAqINNh9U5c3A=="} - m.SetAxfr("miek.nl.") - m.SetTsig("axfr.", dns.HmacSHA256, 300, time.Now().Unix()) - c, err := t.In(m, "176.58.119.54:53") - for r := range c { ... } - -You can now read the records from the transfer as they come in. Each envelope -is checked with TSIG. If something is not correct an error is returned. - -A custom TSIG implementation can be used. This requires additional code to -perform any session establishment and signature generation/verification. The -client must be configured with an implementation of the TsigProvider interface: - - type Provider struct{} - - func (*Provider) Generate(msg []byte, tsig *dns.TSIG) ([]byte, error) { - // Use tsig.Hdr.Name and tsig.Algorithm in your code to - // generate the MAC using msg as the payload. - } - - func (*Provider) Verify(msg []byte, tsig *dns.TSIG) error { - // Use tsig.Hdr.Name and tsig.Algorithm in your code to verify - // that msg matches the value in tsig.MAC. - } - - c := new(dns.Client) - c.TsigProvider = new(Provider) - m := new(dns.Msg) - m.SetQuestion("miek.nl.", dns.TypeMX) - m.SetTsig(keyname, dns.HmacSHA256, 300, time.Now().Unix()) - ... - // TSIG RR is calculated by calling your Generate method - -Basic use pattern validating and replying to a message that has TSIG set. - - server := &dns.Server{Addr: ":53", Net: "udp"} - server.TsigSecret = map[string]string{"axfr.": "so6ZGir4GPAqINNh9U5c3A=="} - go server.ListenAndServe() - dns.HandleFunc(".", handleRequest) - - func handleRequest(w dns.ResponseWriter, r *dns.Msg) { - m := new(dns.Msg) - m.SetReply(r) - if r.IsTsig() != nil { - if w.TsigStatus() == nil { - // *Msg r has an TSIG record and it was validated - m.SetTsig("axfr.", dns.HmacSHA256, 300, time.Now().Unix()) - } else { - // *Msg r has an TSIG records and it was not validated - } - } - w.WriteMsg(m) - } - -PRIVATE RRS - -RFC 6895 sets aside a range of type codes for private use. This range is 65,280 -- 65,534 (0xFF00 - 0xFFFE). When experimenting with new Resource Records these -can be used, before requesting an official type code from IANA. - -See https://miek.nl/2014/september/21/idn-and-private-rr-in-go-dns/ for more -information. - -EDNS0 - -EDNS0 is an extension mechanism for the DNS defined in RFC 2671 and updated by -RFC 6891. It defines an new RR type, the OPT RR, which is then completely -abused. - -Basic use pattern for creating an (empty) OPT RR: - - o := new(dns.OPT) - o.Hdr.Name = "." // MUST be the root zone, per definition. - o.Hdr.Rrtype = dns.TypeOPT - -The rdata of an OPT RR consists out of a slice of EDNS0 (RFC 6891) interfaces. -Currently only a few have been standardized: EDNS0_NSID (RFC 5001) and -EDNS0_SUBNET (RFC 7871). Note that these options may be combined in an OPT RR. -Basic use pattern for a server to check if (and which) options are set: - - // o is a dns.OPT - for _, s := range o.Option { - switch e := s.(type) { - case *dns.EDNS0_NSID: - // do stuff with e.Nsid - case *dns.EDNS0_SUBNET: - // access e.Family, e.Address, etc. - } - } - -SIG(0) - -From RFC 2931: - - SIG(0) provides protection for DNS transactions and requests .... - ... protection for glue records, DNS requests, protection for message headers - on requests and responses, and protection of the overall integrity of a response. - -It works like TSIG, except that SIG(0) uses public key cryptography, instead of -the shared secret approach in TSIG. Supported algorithms: ECDSAP256SHA256, -ECDSAP384SHA384, RSASHA1, RSASHA256 and RSASHA512. - -Signing subsequent messages in multi-message sessions is not implemented. -*/ -package dns diff --git a/vendor/github.com/miekg/dns/duplicate.go b/vendor/github.com/miekg/dns/duplicate.go deleted file mode 100644 index d21ae1cac1..0000000000 --- a/vendor/github.com/miekg/dns/duplicate.go +++ /dev/null @@ -1,37 +0,0 @@ -package dns - -//go:generate go run duplicate_generate.go - -// IsDuplicate checks of r1 and r2 are duplicates of each other, excluding the TTL. -// So this means the header data is equal *and* the RDATA is the same. Returns true -// if so, otherwise false. It's a protocol violation to have identical RRs in a message. -func IsDuplicate(r1, r2 RR) bool { - // Check whether the record header is identical. - if !r1.Header().isDuplicate(r2.Header()) { - return false - } - - // Check whether the RDATA is identical. - return r1.isDuplicate(r2) -} - -func (r1 *RR_Header) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RR_Header) - if !ok { - return false - } - if r1.Class != r2.Class { - return false - } - if r1.Rrtype != r2.Rrtype { - return false - } - if !isDuplicateName(r1.Name, r2.Name) { - return false - } - // ignore TTL - return true -} - -// isDuplicateName checks if the domain names s1 and s2 are equal. -func isDuplicateName(s1, s2 string) bool { return equal(s1, s2) } diff --git a/vendor/github.com/miekg/dns/edns.go b/vendor/github.com/miekg/dns/edns.go deleted file mode 100644 index c9181783de..0000000000 --- a/vendor/github.com/miekg/dns/edns.go +++ /dev/null @@ -1,821 +0,0 @@ -package dns - -import ( - "encoding/binary" - "encoding/hex" - "errors" - "fmt" - "net" - "strconv" -) - -// EDNS0 Option codes. -const ( - EDNS0LLQ = 0x1 // long lived queries: http://tools.ietf.org/html/draft-sekar-dns-llq-01 - EDNS0UL = 0x2 // update lease draft: http://files.dns-sd.org/draft-sekar-dns-ul.txt - EDNS0NSID = 0x3 // nsid (See RFC 5001) - EDNS0DAU = 0x5 // DNSSEC Algorithm Understood - EDNS0DHU = 0x6 // DS Hash Understood - EDNS0N3U = 0x7 // NSEC3 Hash Understood - EDNS0SUBNET = 0x8 // client-subnet (See RFC 7871) - EDNS0EXPIRE = 0x9 // EDNS0 expire - EDNS0COOKIE = 0xa // EDNS0 Cookie - EDNS0TCPKEEPALIVE = 0xb // EDNS0 tcp keep alive (See RFC 7828) - EDNS0PADDING = 0xc // EDNS0 padding (See RFC 7830) - EDNS0EDE = 0xf // EDNS0 extended DNS errors (See RFC 8914) - EDNS0LOCALSTART = 0xFDE9 // Beginning of range reserved for local/experimental use (See RFC 6891) - EDNS0LOCALEND = 0xFFFE // End of range reserved for local/experimental use (See RFC 6891) - _DO = 1 << 15 // DNSSEC OK -) - -// makeDataOpt is used to unpack the EDNS0 option(s) from a message. -func makeDataOpt(code uint16) EDNS0 { - // All the EDNS0.* constants above need to be in this switch. - switch code { - case EDNS0LLQ: - return new(EDNS0_LLQ) - case EDNS0UL: - return new(EDNS0_UL) - case EDNS0NSID: - return new(EDNS0_NSID) - case EDNS0DAU: - return new(EDNS0_DAU) - case EDNS0DHU: - return new(EDNS0_DHU) - case EDNS0N3U: - return new(EDNS0_N3U) - case EDNS0SUBNET: - return new(EDNS0_SUBNET) - case EDNS0EXPIRE: - return new(EDNS0_EXPIRE) - case EDNS0COOKIE: - return new(EDNS0_COOKIE) - case EDNS0TCPKEEPALIVE: - return new(EDNS0_TCP_KEEPALIVE) - case EDNS0PADDING: - return new(EDNS0_PADDING) - case EDNS0EDE: - return new(EDNS0_EDE) - default: - e := new(EDNS0_LOCAL) - e.Code = code - return e - } -} - -// OPT is the EDNS0 RR appended to messages to convey extra (meta) information. -// See RFC 6891. -type OPT struct { - Hdr RR_Header - Option []EDNS0 `dns:"opt"` -} - -func (rr *OPT) String() string { - s := "\n;; OPT PSEUDOSECTION:\n; EDNS: version " + strconv.Itoa(int(rr.Version())) + "; " - if rr.Do() { - s += "flags: do; " - } else { - s += "flags: ; " - } - s += "udp: " + strconv.Itoa(int(rr.UDPSize())) - - for _, o := range rr.Option { - switch o.(type) { - case *EDNS0_NSID: - s += "\n; NSID: " + o.String() - h, e := o.pack() - var r string - if e == nil { - for _, c := range h { - r += "(" + string(c) + ")" - } - s += " " + r - } - case *EDNS0_SUBNET: - s += "\n; SUBNET: " + o.String() - case *EDNS0_COOKIE: - s += "\n; COOKIE: " + o.String() - case *EDNS0_UL: - s += "\n; UPDATE LEASE: " + o.String() - case *EDNS0_LLQ: - s += "\n; LONG LIVED QUERIES: " + o.String() - case *EDNS0_DAU: - s += "\n; DNSSEC ALGORITHM UNDERSTOOD: " + o.String() - case *EDNS0_DHU: - s += "\n; DS HASH UNDERSTOOD: " + o.String() - case *EDNS0_N3U: - s += "\n; NSEC3 HASH UNDERSTOOD: " + o.String() - case *EDNS0_LOCAL: - s += "\n; LOCAL OPT: " + o.String() - case *EDNS0_PADDING: - s += "\n; PADDING: " + o.String() - case *EDNS0_EDE: - s += "\n; EDE: " + o.String() - } - } - return s -} - -func (rr *OPT) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, o := range rr.Option { - l += 4 // Account for 2-byte option code and 2-byte option length. - lo, _ := o.pack() - l += len(lo) - } - return l -} - -func (*OPT) parse(c *zlexer, origin string) *ParseError { - return &ParseError{err: "OPT records do not have a presentation format"} -} - -func (rr *OPT) isDuplicate(r2 RR) bool { return false } - -// return the old value -> delete SetVersion? - -// Version returns the EDNS version used. Only zero is defined. -func (rr *OPT) Version() uint8 { - return uint8(rr.Hdr.Ttl & 0x00FF0000 >> 16) -} - -// SetVersion sets the version of EDNS. This is usually zero. -func (rr *OPT) SetVersion(v uint8) { - rr.Hdr.Ttl = rr.Hdr.Ttl&0xFF00FFFF | uint32(v)<<16 -} - -// ExtendedRcode returns the EDNS extended RCODE field (the upper 8 bits of the TTL). -func (rr *OPT) ExtendedRcode() int { - return int(rr.Hdr.Ttl&0xFF000000>>24) << 4 -} - -// SetExtendedRcode sets the EDNS extended RCODE field. -// -// If the RCODE is not an extended RCODE, will reset the extended RCODE field to 0. -func (rr *OPT) SetExtendedRcode(v uint16) { - rr.Hdr.Ttl = rr.Hdr.Ttl&0x00FFFFFF | uint32(v>>4)<<24 -} - -// UDPSize returns the UDP buffer size. -func (rr *OPT) UDPSize() uint16 { - return rr.Hdr.Class -} - -// SetUDPSize sets the UDP buffer size. -func (rr *OPT) SetUDPSize(size uint16) { - rr.Hdr.Class = size -} - -// Do returns the value of the DO (DNSSEC OK) bit. -func (rr *OPT) Do() bool { - return rr.Hdr.Ttl&_DO == _DO -} - -// SetDo sets the DO (DNSSEC OK) bit. -// If we pass an argument, set the DO bit to that value. -// It is possible to pass 2 or more arguments. Any arguments after the 1st is silently ignored. -func (rr *OPT) SetDo(do ...bool) { - if len(do) == 1 { - if do[0] { - rr.Hdr.Ttl |= _DO - } else { - rr.Hdr.Ttl &^= _DO - } - } else { - rr.Hdr.Ttl |= _DO - } -} - -// Z returns the Z part of the OPT RR as a uint16 with only the 15 least significant bits used. -func (rr *OPT) Z() uint16 { - return uint16(rr.Hdr.Ttl & 0x7FFF) -} - -// SetZ sets the Z part of the OPT RR, note only the 15 least significant bits of z are used. -func (rr *OPT) SetZ(z uint16) { - rr.Hdr.Ttl = rr.Hdr.Ttl&^0x7FFF | uint32(z&0x7FFF) -} - -// EDNS0 defines an EDNS0 Option. An OPT RR can have multiple options appended to it. -type EDNS0 interface { - // Option returns the option code for the option. - Option() uint16 - // pack returns the bytes of the option data. - pack() ([]byte, error) - // unpack sets the data as found in the buffer. Is also sets - // the length of the slice as the length of the option data. - unpack([]byte) error - // String returns the string representation of the option. - String() string - // copy returns a deep-copy of the option. - copy() EDNS0 -} - -// EDNS0_NSID option is used to retrieve a nameserver -// identifier. When sending a request Nsid must be set to the empty string -// The identifier is an opaque string encoded as hex. -// Basic use pattern for creating an nsid option: -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_NSID) -// e.Code = dns.EDNS0NSID -// e.Nsid = "AA" -// o.Option = append(o.Option, e) -type EDNS0_NSID struct { - Code uint16 // Always EDNS0NSID - Nsid string // This string needs to be hex encoded -} - -func (e *EDNS0_NSID) pack() ([]byte, error) { - h, err := hex.DecodeString(e.Nsid) - if err != nil { - return nil, err - } - return h, nil -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_NSID) Option() uint16 { return EDNS0NSID } // Option returns the option code. -func (e *EDNS0_NSID) unpack(b []byte) error { e.Nsid = hex.EncodeToString(b); return nil } -func (e *EDNS0_NSID) String() string { return e.Nsid } -func (e *EDNS0_NSID) copy() EDNS0 { return &EDNS0_NSID{e.Code, e.Nsid} } - -// EDNS0_SUBNET is the subnet option that is used to give the remote nameserver -// an idea of where the client lives. See RFC 7871. It can then give back a different -// answer depending on the location or network topology. -// Basic use pattern for creating an subnet option: -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_SUBNET) -// e.Code = dns.EDNS0SUBNET -// e.Family = 1 // 1 for IPv4 source address, 2 for IPv6 -// e.SourceNetmask = 32 // 32 for IPV4, 128 for IPv6 -// e.SourceScope = 0 -// e.Address = net.ParseIP("127.0.0.1").To4() // for IPv4 -// // e.Address = net.ParseIP("2001:7b8:32a::2") // for IPV6 -// o.Option = append(o.Option, e) -// -// This code will parse all the available bits when unpacking (up to optlen). -// When packing it will apply SourceNetmask. If you need more advanced logic, -// patches welcome and good luck. -type EDNS0_SUBNET struct { - Code uint16 // Always EDNS0SUBNET - Family uint16 // 1 for IP, 2 for IP6 - SourceNetmask uint8 - SourceScope uint8 - Address net.IP -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_SUBNET) Option() uint16 { return EDNS0SUBNET } - -func (e *EDNS0_SUBNET) pack() ([]byte, error) { - b := make([]byte, 4) - binary.BigEndian.PutUint16(b[0:], e.Family) - b[2] = e.SourceNetmask - b[3] = e.SourceScope - switch e.Family { - case 0: - // "dig" sets AddressFamily to 0 if SourceNetmask is also 0 - // We might don't need to complain either - if e.SourceNetmask != 0 { - return nil, errors.New("dns: bad address family") - } - case 1: - if e.SourceNetmask > net.IPv4len*8 { - return nil, errors.New("dns: bad netmask") - } - if len(e.Address.To4()) != net.IPv4len { - return nil, errors.New("dns: bad address") - } - ip := e.Address.To4().Mask(net.CIDRMask(int(e.SourceNetmask), net.IPv4len*8)) - needLength := (e.SourceNetmask + 8 - 1) / 8 // division rounding up - b = append(b, ip[:needLength]...) - case 2: - if e.SourceNetmask > net.IPv6len*8 { - return nil, errors.New("dns: bad netmask") - } - if len(e.Address) != net.IPv6len { - return nil, errors.New("dns: bad address") - } - ip := e.Address.Mask(net.CIDRMask(int(e.SourceNetmask), net.IPv6len*8)) - needLength := (e.SourceNetmask + 8 - 1) / 8 // division rounding up - b = append(b, ip[:needLength]...) - default: - return nil, errors.New("dns: bad address family") - } - return b, nil -} - -func (e *EDNS0_SUBNET) unpack(b []byte) error { - if len(b) < 4 { - return ErrBuf - } - e.Family = binary.BigEndian.Uint16(b) - e.SourceNetmask = b[2] - e.SourceScope = b[3] - switch e.Family { - case 0: - // "dig" sets AddressFamily to 0 if SourceNetmask is also 0 - // It's okay to accept such a packet - if e.SourceNetmask != 0 { - return errors.New("dns: bad address family") - } - e.Address = net.IPv4(0, 0, 0, 0) - case 1: - if e.SourceNetmask > net.IPv4len*8 || e.SourceScope > net.IPv4len*8 { - return errors.New("dns: bad netmask") - } - addr := make(net.IP, net.IPv4len) - copy(addr, b[4:]) - e.Address = addr.To16() - case 2: - if e.SourceNetmask > net.IPv6len*8 || e.SourceScope > net.IPv6len*8 { - return errors.New("dns: bad netmask") - } - addr := make(net.IP, net.IPv6len) - copy(addr, b[4:]) - e.Address = addr - default: - return errors.New("dns: bad address family") - } - return nil -} - -func (e *EDNS0_SUBNET) String() (s string) { - if e.Address == nil { - s = "<nil>" - } else if e.Address.To4() != nil { - s = e.Address.String() - } else { - s = "[" + e.Address.String() + "]" - } - s += "/" + strconv.Itoa(int(e.SourceNetmask)) + "/" + strconv.Itoa(int(e.SourceScope)) - return -} - -func (e *EDNS0_SUBNET) copy() EDNS0 { - return &EDNS0_SUBNET{ - e.Code, - e.Family, - e.SourceNetmask, - e.SourceScope, - e.Address, - } -} - -// The EDNS0_COOKIE option is used to add a DNS Cookie to a message. -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_COOKIE) -// e.Code = dns.EDNS0COOKIE -// e.Cookie = "24a5ac.." -// o.Option = append(o.Option, e) -// -// The Cookie field consists out of a client cookie (RFC 7873 Section 4), that is -// always 8 bytes. It may then optionally be followed by the server cookie. The server -// cookie is of variable length, 8 to a maximum of 32 bytes. In other words: -// -// cCookie := o.Cookie[:16] -// sCookie := o.Cookie[16:] -// -// There is no guarantee that the Cookie string has a specific length. -type EDNS0_COOKIE struct { - Code uint16 // Always EDNS0COOKIE - Cookie string // Hex-encoded cookie data -} - -func (e *EDNS0_COOKIE) pack() ([]byte, error) { - h, err := hex.DecodeString(e.Cookie) - if err != nil { - return nil, err - } - return h, nil -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_COOKIE) Option() uint16 { return EDNS0COOKIE } -func (e *EDNS0_COOKIE) unpack(b []byte) error { e.Cookie = hex.EncodeToString(b); return nil } -func (e *EDNS0_COOKIE) String() string { return e.Cookie } -func (e *EDNS0_COOKIE) copy() EDNS0 { return &EDNS0_COOKIE{e.Code, e.Cookie} } - -// The EDNS0_UL (Update Lease) (draft RFC) option is used to tell the server to set -// an expiration on an update RR. This is helpful for clients that cannot clean -// up after themselves. This is a draft RFC and more information can be found at -// https://tools.ietf.org/html/draft-sekar-dns-ul-02 -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_UL) -// e.Code = dns.EDNS0UL -// e.Lease = 120 // in seconds -// o.Option = append(o.Option, e) -type EDNS0_UL struct { - Code uint16 // Always EDNS0UL - Lease uint32 - KeyLease uint32 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_UL) Option() uint16 { return EDNS0UL } -func (e *EDNS0_UL) String() string { return fmt.Sprintf("%d %d", e.Lease, e.KeyLease) } -func (e *EDNS0_UL) copy() EDNS0 { return &EDNS0_UL{e.Code, e.Lease, e.KeyLease} } - -// Copied: http://golang.org/src/pkg/net/dnsmsg.go -func (e *EDNS0_UL) pack() ([]byte, error) { - var b []byte - if e.KeyLease == 0 { - b = make([]byte, 4) - } else { - b = make([]byte, 8) - binary.BigEndian.PutUint32(b[4:], e.KeyLease) - } - binary.BigEndian.PutUint32(b, e.Lease) - return b, nil -} - -func (e *EDNS0_UL) unpack(b []byte) error { - switch len(b) { - case 4: - e.KeyLease = 0 - case 8: - e.KeyLease = binary.BigEndian.Uint32(b[4:]) - default: - return ErrBuf - } - e.Lease = binary.BigEndian.Uint32(b) - return nil -} - -// EDNS0_LLQ stands for Long Lived Queries: http://tools.ietf.org/html/draft-sekar-dns-llq-01 -// Implemented for completeness, as the EDNS0 type code is assigned. -type EDNS0_LLQ struct { - Code uint16 // Always EDNS0LLQ - Version uint16 - Opcode uint16 - Error uint16 - Id uint64 - LeaseLife uint32 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_LLQ) Option() uint16 { return EDNS0LLQ } - -func (e *EDNS0_LLQ) pack() ([]byte, error) { - b := make([]byte, 18) - binary.BigEndian.PutUint16(b[0:], e.Version) - binary.BigEndian.PutUint16(b[2:], e.Opcode) - binary.BigEndian.PutUint16(b[4:], e.Error) - binary.BigEndian.PutUint64(b[6:], e.Id) - binary.BigEndian.PutUint32(b[14:], e.LeaseLife) - return b, nil -} - -func (e *EDNS0_LLQ) unpack(b []byte) error { - if len(b) < 18 { - return ErrBuf - } - e.Version = binary.BigEndian.Uint16(b[0:]) - e.Opcode = binary.BigEndian.Uint16(b[2:]) - e.Error = binary.BigEndian.Uint16(b[4:]) - e.Id = binary.BigEndian.Uint64(b[6:]) - e.LeaseLife = binary.BigEndian.Uint32(b[14:]) - return nil -} - -func (e *EDNS0_LLQ) String() string { - s := strconv.FormatUint(uint64(e.Version), 10) + " " + strconv.FormatUint(uint64(e.Opcode), 10) + - " " + strconv.FormatUint(uint64(e.Error), 10) + " " + strconv.FormatUint(e.Id, 10) + - " " + strconv.FormatUint(uint64(e.LeaseLife), 10) - return s -} -func (e *EDNS0_LLQ) copy() EDNS0 { - return &EDNS0_LLQ{e.Code, e.Version, e.Opcode, e.Error, e.Id, e.LeaseLife} -} - -// EDNS0_DAU implements the EDNS0 "DNSSEC Algorithm Understood" option. See RFC 6975. -type EDNS0_DAU struct { - Code uint16 // Always EDNS0DAU - AlgCode []uint8 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_DAU) Option() uint16 { return EDNS0DAU } -func (e *EDNS0_DAU) pack() ([]byte, error) { return e.AlgCode, nil } -func (e *EDNS0_DAU) unpack(b []byte) error { e.AlgCode = b; return nil } - -func (e *EDNS0_DAU) String() string { - s := "" - for _, alg := range e.AlgCode { - if a, ok := AlgorithmToString[alg]; ok { - s += " " + a - } else { - s += " " + strconv.Itoa(int(alg)) - } - } - return s -} -func (e *EDNS0_DAU) copy() EDNS0 { return &EDNS0_DAU{e.Code, e.AlgCode} } - -// EDNS0_DHU implements the EDNS0 "DS Hash Understood" option. See RFC 6975. -type EDNS0_DHU struct { - Code uint16 // Always EDNS0DHU - AlgCode []uint8 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_DHU) Option() uint16 { return EDNS0DHU } -func (e *EDNS0_DHU) pack() ([]byte, error) { return e.AlgCode, nil } -func (e *EDNS0_DHU) unpack(b []byte) error { e.AlgCode = b; return nil } - -func (e *EDNS0_DHU) String() string { - s := "" - for _, alg := range e.AlgCode { - if a, ok := HashToString[alg]; ok { - s += " " + a - } else { - s += " " + strconv.Itoa(int(alg)) - } - } - return s -} -func (e *EDNS0_DHU) copy() EDNS0 { return &EDNS0_DHU{e.Code, e.AlgCode} } - -// EDNS0_N3U implements the EDNS0 "NSEC3 Hash Understood" option. See RFC 6975. -type EDNS0_N3U struct { - Code uint16 // Always EDNS0N3U - AlgCode []uint8 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_N3U) Option() uint16 { return EDNS0N3U } -func (e *EDNS0_N3U) pack() ([]byte, error) { return e.AlgCode, nil } -func (e *EDNS0_N3U) unpack(b []byte) error { e.AlgCode = b; return nil } - -func (e *EDNS0_N3U) String() string { - // Re-use the hash map - s := "" - for _, alg := range e.AlgCode { - if a, ok := HashToString[alg]; ok { - s += " " + a - } else { - s += " " + strconv.Itoa(int(alg)) - } - } - return s -} -func (e *EDNS0_N3U) copy() EDNS0 { return &EDNS0_N3U{e.Code, e.AlgCode} } - -// EDNS0_EXPIRE implements the EDNS0 option as described in RFC 7314. -type EDNS0_EXPIRE struct { - Code uint16 // Always EDNS0EXPIRE - Expire uint32 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_EXPIRE) Option() uint16 { return EDNS0EXPIRE } -func (e *EDNS0_EXPIRE) String() string { return strconv.FormatUint(uint64(e.Expire), 10) } -func (e *EDNS0_EXPIRE) copy() EDNS0 { return &EDNS0_EXPIRE{e.Code, e.Expire} } - -func (e *EDNS0_EXPIRE) pack() ([]byte, error) { - b := make([]byte, 4) - binary.BigEndian.PutUint32(b, e.Expire) - return b, nil -} - -func (e *EDNS0_EXPIRE) unpack(b []byte) error { - if len(b) == 0 { - // zero-length EXPIRE query, see RFC 7314 Section 2 - return nil - } - if len(b) < 4 { - return ErrBuf - } - e.Expire = binary.BigEndian.Uint32(b) - return nil -} - -// The EDNS0_LOCAL option is used for local/experimental purposes. The option -// code is recommended to be within the range [EDNS0LOCALSTART, EDNS0LOCALEND] -// (RFC6891), although any unassigned code can actually be used. The content of -// the option is made available in Data, unaltered. -// Basic use pattern for creating a local option: -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_LOCAL) -// e.Code = dns.EDNS0LOCALSTART -// e.Data = []byte{72, 82, 74} -// o.Option = append(o.Option, e) -type EDNS0_LOCAL struct { - Code uint16 - Data []byte -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_LOCAL) Option() uint16 { return e.Code } -func (e *EDNS0_LOCAL) String() string { - return strconv.FormatInt(int64(e.Code), 10) + ":0x" + hex.EncodeToString(e.Data) -} -func (e *EDNS0_LOCAL) copy() EDNS0 { - b := make([]byte, len(e.Data)) - copy(b, e.Data) - return &EDNS0_LOCAL{e.Code, b} -} - -func (e *EDNS0_LOCAL) pack() ([]byte, error) { - b := make([]byte, len(e.Data)) - copied := copy(b, e.Data) - if copied != len(e.Data) { - return nil, ErrBuf - } - return b, nil -} - -func (e *EDNS0_LOCAL) unpack(b []byte) error { - e.Data = make([]byte, len(b)) - copied := copy(e.Data, b) - if copied != len(b) { - return ErrBuf - } - return nil -} - -// EDNS0_TCP_KEEPALIVE is an EDNS0 option that instructs the server to keep -// the TCP connection alive. See RFC 7828. -type EDNS0_TCP_KEEPALIVE struct { - Code uint16 // Always EDNSTCPKEEPALIVE - Length uint16 // the value 0 if the TIMEOUT is omitted, the value 2 if it is present; - Timeout uint16 // an idle timeout value for the TCP connection, specified in units of 100 milliseconds, encoded in network byte order. -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_TCP_KEEPALIVE) Option() uint16 { return EDNS0TCPKEEPALIVE } - -func (e *EDNS0_TCP_KEEPALIVE) pack() ([]byte, error) { - if e.Timeout != 0 && e.Length != 2 { - return nil, errors.New("dns: timeout specified but length is not 2") - } - if e.Timeout == 0 && e.Length != 0 { - return nil, errors.New("dns: timeout not specified but length is not 0") - } - b := make([]byte, 4+e.Length) - binary.BigEndian.PutUint16(b[0:], e.Code) - binary.BigEndian.PutUint16(b[2:], e.Length) - if e.Length == 2 { - binary.BigEndian.PutUint16(b[4:], e.Timeout) - } - return b, nil -} - -func (e *EDNS0_TCP_KEEPALIVE) unpack(b []byte) error { - if len(b) < 4 { - return ErrBuf - } - e.Length = binary.BigEndian.Uint16(b[2:4]) - if e.Length != 0 && e.Length != 2 { - return errors.New("dns: length mismatch, want 0/2 but got " + strconv.FormatUint(uint64(e.Length), 10)) - } - if e.Length == 2 { - if len(b) < 6 { - return ErrBuf - } - e.Timeout = binary.BigEndian.Uint16(b[4:6]) - } - return nil -} - -func (e *EDNS0_TCP_KEEPALIVE) String() (s string) { - s = "use tcp keep-alive" - if e.Length == 0 { - s += ", timeout omitted" - } else { - s += fmt.Sprintf(", timeout %dms", e.Timeout*100) - } - return -} -func (e *EDNS0_TCP_KEEPALIVE) copy() EDNS0 { return &EDNS0_TCP_KEEPALIVE{e.Code, e.Length, e.Timeout} } - -// EDNS0_PADDING option is used to add padding to a request/response. The default -// value of padding SHOULD be 0x0 but other values MAY be used, for instance if -// compression is applied before encryption which may break signatures. -type EDNS0_PADDING struct { - Padding []byte -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_PADDING) Option() uint16 { return EDNS0PADDING } -func (e *EDNS0_PADDING) pack() ([]byte, error) { return e.Padding, nil } -func (e *EDNS0_PADDING) unpack(b []byte) error { e.Padding = b; return nil } -func (e *EDNS0_PADDING) String() string { return fmt.Sprintf("%0X", e.Padding) } -func (e *EDNS0_PADDING) copy() EDNS0 { - b := make([]byte, len(e.Padding)) - copy(b, e.Padding) - return &EDNS0_PADDING{b} -} - -// Extended DNS Error Codes (RFC 8914). -const ( - ExtendedErrorCodeOther uint16 = iota - ExtendedErrorCodeUnsupportedDNSKEYAlgorithm - ExtendedErrorCodeUnsupportedDSDigestType - ExtendedErrorCodeStaleAnswer - ExtendedErrorCodeForgedAnswer - ExtendedErrorCodeDNSSECIndeterminate - ExtendedErrorCodeDNSBogus - ExtendedErrorCodeSignatureExpired - ExtendedErrorCodeSignatureNotYetValid - ExtendedErrorCodeDNSKEYMissing - ExtendedErrorCodeRRSIGsMissing - ExtendedErrorCodeNoZoneKeyBitSet - ExtendedErrorCodeNSECMissing - ExtendedErrorCodeCachedError - ExtendedErrorCodeNotReady - ExtendedErrorCodeBlocked - ExtendedErrorCodeCensored - ExtendedErrorCodeFiltered - ExtendedErrorCodeProhibited - ExtendedErrorCodeStaleNXDOMAINAnswer - ExtendedErrorCodeNotAuthoritative - ExtendedErrorCodeNotSupported - ExtendedErrorCodeNoReachableAuthority - ExtendedErrorCodeNetworkError - ExtendedErrorCodeInvalidData -) - -// ExtendedErrorCodeToString maps extended error info codes to a human readable -// description. -var ExtendedErrorCodeToString = map[uint16]string{ - ExtendedErrorCodeOther: "Other", - ExtendedErrorCodeUnsupportedDNSKEYAlgorithm: "Unsupported DNSKEY Algorithm", - ExtendedErrorCodeUnsupportedDSDigestType: "Unsupported DS Digest Type", - ExtendedErrorCodeStaleAnswer: "Stale Answer", - ExtendedErrorCodeForgedAnswer: "Forged Answer", - ExtendedErrorCodeDNSSECIndeterminate: "DNSSEC Indeterminate", - ExtendedErrorCodeDNSBogus: "DNSSEC Bogus", - ExtendedErrorCodeSignatureExpired: "Signature Expired", - ExtendedErrorCodeSignatureNotYetValid: "Signature Not Yet Valid", - ExtendedErrorCodeDNSKEYMissing: "DNSKEY Missing", - ExtendedErrorCodeRRSIGsMissing: "RRSIGs Missing", - ExtendedErrorCodeNoZoneKeyBitSet: "No Zone Key Bit Set", - ExtendedErrorCodeNSECMissing: "NSEC Missing", - ExtendedErrorCodeCachedError: "Cached Error", - ExtendedErrorCodeNotReady: "Not Ready", - ExtendedErrorCodeBlocked: "Blocked", - ExtendedErrorCodeCensored: "Censored", - ExtendedErrorCodeFiltered: "Filtered", - ExtendedErrorCodeProhibited: "Prohibited", - ExtendedErrorCodeStaleNXDOMAINAnswer: "Stale NXDOMAIN Answer", - ExtendedErrorCodeNotAuthoritative: "Not Authoritative", - ExtendedErrorCodeNotSupported: "Not Supported", - ExtendedErrorCodeNoReachableAuthority: "No Reachable Authority", - ExtendedErrorCodeNetworkError: "Network Error", - ExtendedErrorCodeInvalidData: "Invalid Data", -} - -// StringToExtendedErrorCode is a map from human readable descriptions to -// extended error info codes. -var StringToExtendedErrorCode = reverseInt16(ExtendedErrorCodeToString) - -// EDNS0_EDE option is used to return additional information about the cause of -// DNS errors. -type EDNS0_EDE struct { - InfoCode uint16 - ExtraText string -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_EDE) Option() uint16 { return EDNS0EDE } -func (e *EDNS0_EDE) copy() EDNS0 { return &EDNS0_EDE{e.InfoCode, e.ExtraText} } - -func (e *EDNS0_EDE) String() string { - info := strconv.FormatUint(uint64(e.InfoCode), 10) - if s, ok := ExtendedErrorCodeToString[e.InfoCode]; ok { - info += fmt.Sprintf(" (%s)", s) - } - return fmt.Sprintf("%s: (%s)", info, e.ExtraText) -} - -func (e *EDNS0_EDE) pack() ([]byte, error) { - b := make([]byte, 2+len(e.ExtraText)) - binary.BigEndian.PutUint16(b[0:], e.InfoCode) - copy(b[2:], []byte(e.ExtraText)) - return b, nil -} - -func (e *EDNS0_EDE) unpack(b []byte) error { - if len(b) < 2 { - return ErrBuf - } - e.InfoCode = binary.BigEndian.Uint16(b[0:]) - e.ExtraText = string(b[2:]) - return nil -} diff --git a/vendor/github.com/miekg/dns/format.go b/vendor/github.com/miekg/dns/format.go deleted file mode 100644 index 0ec79f2fc1..0000000000 --- a/vendor/github.com/miekg/dns/format.go +++ /dev/null @@ -1,93 +0,0 @@ -package dns - -import ( - "net" - "reflect" - "strconv" -) - -// NumField returns the number of rdata fields r has. -func NumField(r RR) int { - return reflect.ValueOf(r).Elem().NumField() - 1 // Remove RR_Header -} - -// Field returns the rdata field i as a string. Fields are indexed starting from 1. -// RR types that holds slice data, for instance the NSEC type bitmap will return a single -// string where the types are concatenated using a space. -// Accessing non existing fields will cause a panic. -func Field(r RR, i int) string { - if i == 0 { - return "" - } - d := reflect.ValueOf(r).Elem().Field(i) - switch d.Kind() { - case reflect.String: - return d.String() - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return strconv.FormatInt(d.Int(), 10) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - return strconv.FormatUint(d.Uint(), 10) - case reflect.Slice: - switch reflect.ValueOf(r).Elem().Type().Field(i).Tag { - case `dns:"a"`: - // TODO(miek): Hmm store this as 16 bytes - if d.Len() < net.IPv4len { - return "" - } - if d.Len() < net.IPv6len { - return net.IPv4(byte(d.Index(0).Uint()), - byte(d.Index(1).Uint()), - byte(d.Index(2).Uint()), - byte(d.Index(3).Uint())).String() - } - return net.IPv4(byte(d.Index(12).Uint()), - byte(d.Index(13).Uint()), - byte(d.Index(14).Uint()), - byte(d.Index(15).Uint())).String() - case `dns:"aaaa"`: - if d.Len() < net.IPv6len { - return "" - } - return net.IP{ - byte(d.Index(0).Uint()), - byte(d.Index(1).Uint()), - byte(d.Index(2).Uint()), - byte(d.Index(3).Uint()), - byte(d.Index(4).Uint()), - byte(d.Index(5).Uint()), - byte(d.Index(6).Uint()), - byte(d.Index(7).Uint()), - byte(d.Index(8).Uint()), - byte(d.Index(9).Uint()), - byte(d.Index(10).Uint()), - byte(d.Index(11).Uint()), - byte(d.Index(12).Uint()), - byte(d.Index(13).Uint()), - byte(d.Index(14).Uint()), - byte(d.Index(15).Uint()), - }.String() - case `dns:"nsec"`: - if d.Len() == 0 { - return "" - } - s := Type(d.Index(0).Uint()).String() - for i := 1; i < d.Len(); i++ { - s += " " + Type(d.Index(i).Uint()).String() - } - return s - default: - // if it does not have a tag its a string slice - fallthrough - case `dns:"txt"`: - if d.Len() == 0 { - return "" - } - s := d.Index(0).String() - for i := 1; i < d.Len(); i++ { - s += " " + d.Index(i).String() - } - return s - } - } - return "" -} diff --git a/vendor/github.com/miekg/dns/fuzz.go b/vendor/github.com/miekg/dns/fuzz.go deleted file mode 100644 index 57410acda7..0000000000 --- a/vendor/github.com/miekg/dns/fuzz.go +++ /dev/null @@ -1,32 +0,0 @@ -// +build fuzz - -package dns - -import "strings" - -func Fuzz(data []byte) int { - msg := new(Msg) - - if err := msg.Unpack(data); err != nil { - return 0 - } - if _, err := msg.Pack(); err != nil { - return 0 - } - - return 1 -} - -func FuzzNewRR(data []byte) int { - str := string(data) - // Do not fuzz lines that include the $INCLUDE keyword and hint the fuzzer - // at avoiding them. - // See GH#1025 for context. - if strings.Contains(strings.ToUpper(str), "$INCLUDE") { - return -1 - } - if _, err := NewRR(str); err != nil { - return 0 - } - return 1 -} diff --git a/vendor/github.com/miekg/dns/generate.go b/vendor/github.com/miekg/dns/generate.go deleted file mode 100644 index ac8df34dd5..0000000000 --- a/vendor/github.com/miekg/dns/generate.go +++ /dev/null @@ -1,247 +0,0 @@ -package dns - -import ( - "bytes" - "fmt" - "io" - "strconv" - "strings" -) - -// Parse the $GENERATE statement as used in BIND9 zones. -// See http://www.zytrax.com/books/dns/ch8/generate.html for instance. -// We are called after '$GENERATE '. After which we expect: -// * the range (12-24/2) -// * lhs (ownername) -// * [[ttl][class]] -// * type -// * rhs (rdata) -// But we are lazy here, only the range is parsed *all* occurrences -// of $ after that are interpreted. -func (zp *ZoneParser) generate(l lex) (RR, bool) { - token := l.token - step := int64(1) - if i := strings.IndexByte(token, '/'); i >= 0 { - if i+1 == len(token) { - return zp.setParseError("bad step in $GENERATE range", l) - } - - s, err := strconv.ParseInt(token[i+1:], 10, 64) - if err != nil || s <= 0 { - return zp.setParseError("bad step in $GENERATE range", l) - } - - step = s - token = token[:i] - } - - sx := strings.SplitN(token, "-", 2) - if len(sx) != 2 { - return zp.setParseError("bad start-stop in $GENERATE range", l) - } - - start, err := strconv.ParseInt(sx[0], 10, 64) - if err != nil { - return zp.setParseError("bad start in $GENERATE range", l) - } - - end, err := strconv.ParseInt(sx[1], 10, 64) - if err != nil { - return zp.setParseError("bad stop in $GENERATE range", l) - } - if end < 0 || start < 0 || end < start || (end-start)/step > 65535 { - return zp.setParseError("bad range in $GENERATE range", l) - } - - // _BLANK - l, ok := zp.c.Next() - if !ok || l.value != zBlank { - return zp.setParseError("garbage after $GENERATE range", l) - } - - // Create a complete new string, which we then parse again. - var s string - for l, ok := zp.c.Next(); ok; l, ok = zp.c.Next() { - if l.err { - return zp.setParseError("bad data in $GENERATE directive", l) - } - if l.value == zNewline { - break - } - - s += l.token - } - - r := &generateReader{ - s: s, - - cur: start, - start: start, - end: end, - step: step, - - file: zp.file, - lex: &l, - } - zp.sub = NewZoneParser(r, zp.origin, zp.file) - zp.sub.includeDepth, zp.sub.includeAllowed = zp.includeDepth, zp.includeAllowed - zp.sub.generateDisallowed = true - zp.sub.SetDefaultTTL(defaultTtl) - return zp.subNext() -} - -type generateReader struct { - s string - si int - - cur int64 - start int64 - end int64 - step int64 - - mod bytes.Buffer - - escape bool - - eof bool - - file string - lex *lex -} - -func (r *generateReader) parseError(msg string, end int) *ParseError { - r.eof = true // Make errors sticky. - - l := *r.lex - l.token = r.s[r.si-1 : end] - l.column += r.si // l.column starts one zBLANK before r.s - - return &ParseError{r.file, msg, l} -} - -func (r *generateReader) Read(p []byte) (int, error) { - // NewZLexer, through NewZoneParser, should use ReadByte and - // not end up here. - - panic("not implemented") -} - -func (r *generateReader) ReadByte() (byte, error) { - if r.eof { - return 0, io.EOF - } - if r.mod.Len() > 0 { - return r.mod.ReadByte() - } - - if r.si >= len(r.s) { - r.si = 0 - r.cur += r.step - - r.eof = r.cur > r.end || r.cur < 0 - return '\n', nil - } - - si := r.si - r.si++ - - switch r.s[si] { - case '\\': - if r.escape { - r.escape = false - return '\\', nil - } - - r.escape = true - return r.ReadByte() - case '$': - if r.escape { - r.escape = false - return '$', nil - } - - mod := "%d" - - if si >= len(r.s)-1 { - // End of the string - fmt.Fprintf(&r.mod, mod, r.cur) - return r.mod.ReadByte() - } - - if r.s[si+1] == '$' { - r.si++ - return '$', nil - } - - var offset int64 - - // Search for { and } - if r.s[si+1] == '{' { - // Modifier block - sep := strings.Index(r.s[si+2:], "}") - if sep < 0 { - return 0, r.parseError("bad modifier in $GENERATE", len(r.s)) - } - - var errMsg string - mod, offset, errMsg = modToPrintf(r.s[si+2 : si+2+sep]) - if errMsg != "" { - return 0, r.parseError(errMsg, si+3+sep) - } - if r.start+offset < 0 || r.end+offset > 1<<31-1 { - return 0, r.parseError("bad offset in $GENERATE", si+3+sep) - } - - r.si += 2 + sep // Jump to it - } - - fmt.Fprintf(&r.mod, mod, r.cur+offset) - return r.mod.ReadByte() - default: - if r.escape { // Pretty useless here - r.escape = false - return r.ReadByte() - } - - return r.s[si], nil - } -} - -// Convert a $GENERATE modifier 0,0,d to something Printf can deal with. -func modToPrintf(s string) (string, int64, string) { - // Modifier is { offset [ ,width [ ,base ] ] } - provide default - // values for optional width and type, if necessary. - var offStr, widthStr, base string - switch xs := strings.Split(s, ","); len(xs) { - case 1: - offStr, widthStr, base = xs[0], "0", "d" - case 2: - offStr, widthStr, base = xs[0], xs[1], "d" - case 3: - offStr, widthStr, base = xs[0], xs[1], xs[2] - default: - return "", 0, "bad modifier in $GENERATE" - } - - switch base { - case "o", "d", "x", "X": - default: - return "", 0, "bad base in $GENERATE" - } - - offset, err := strconv.ParseInt(offStr, 10, 64) - if err != nil { - return "", 0, "bad offset in $GENERATE" - } - - width, err := strconv.ParseInt(widthStr, 10, 64) - if err != nil || width < 0 || width > 255 { - return "", 0, "bad width in $GENERATE" - } - - if width == 0 { - return "%" + base, offset, "" - } - - return "%0" + widthStr + base, offset, "" -} diff --git a/vendor/github.com/miekg/dns/go.mod b/vendor/github.com/miekg/dns/go.mod deleted file mode 100644 index aff65114de..0000000000 --- a/vendor/github.com/miekg/dns/go.mod +++ /dev/null @@ -1,9 +0,0 @@ -module github.com/miekg/dns - -go 1.14 - -require ( - golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 - golang.org/x/sync v0.0.0-20210220032951-036812b2e83c - golang.org/x/sys v0.0.0-20210303074136-134d130e1a04 -) diff --git a/vendor/github.com/miekg/dns/go.sum b/vendor/github.com/miekg/dns/go.sum deleted file mode 100644 index 3359ebea4e..0000000000 --- a/vendor/github.com/miekg/dns/go.sum +++ /dev/null @@ -1,10 +0,0 @@ -golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 h1:qWPm9rbaAMKs8Bq/9LRpbMqxWRVUAQwMI9fVrssnTfw= -golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= -golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ= -golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20210303074136-134d130e1a04 h1:cEhElsAv9LUt9ZUUocxzWe05oFLVd+AA2nstydTeI8g= -golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= -golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= -golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= diff --git a/vendor/github.com/miekg/dns/labels.go b/vendor/github.com/miekg/dns/labels.go deleted file mode 100644 index f9faacfeb4..0000000000 --- a/vendor/github.com/miekg/dns/labels.go +++ /dev/null @@ -1,212 +0,0 @@ -package dns - -// Holds a bunch of helper functions for dealing with labels. - -// SplitDomainName splits a name string into it's labels. -// www.miek.nl. returns []string{"www", "miek", "nl"} -// .www.miek.nl. returns []string{"", "www", "miek", "nl"}, -// The root label (.) returns nil. Note that using -// strings.Split(s) will work in most cases, but does not handle -// escaped dots (\.) for instance. -// s must be a syntactically valid domain name, see IsDomainName. -func SplitDomainName(s string) (labels []string) { - if s == "" { - return nil - } - fqdnEnd := 0 // offset of the final '.' or the length of the name - idx := Split(s) - begin := 0 - if IsFqdn(s) { - fqdnEnd = len(s) - 1 - } else { - fqdnEnd = len(s) - } - - switch len(idx) { - case 0: - return nil - case 1: - // no-op - default: - for _, end := range idx[1:] { - labels = append(labels, s[begin:end-1]) - begin = end - } - } - - return append(labels, s[begin:fqdnEnd]) -} - -// CompareDomainName compares the names s1 and s2 and -// returns how many labels they have in common starting from the *right*. -// The comparison stops at the first inequality. The names are downcased -// before the comparison. -// -// www.miek.nl. and miek.nl. have two labels in common: miek and nl -// www.miek.nl. and www.bla.nl. have one label in common: nl -// -// s1 and s2 must be syntactically valid domain names. -func CompareDomainName(s1, s2 string) (n int) { - // the first check: root label - if s1 == "." || s2 == "." { - return 0 - } - - l1 := Split(s1) - l2 := Split(s2) - - j1 := len(l1) - 1 // end - i1 := len(l1) - 2 // start - j2 := len(l2) - 1 - i2 := len(l2) - 2 - // the second check can be done here: last/only label - // before we fall through into the for-loop below - if equal(s1[l1[j1]:], s2[l2[j2]:]) { - n++ - } else { - return - } - for { - if i1 < 0 || i2 < 0 { - break - } - if equal(s1[l1[i1]:l1[j1]], s2[l2[i2]:l2[j2]]) { - n++ - } else { - break - } - j1-- - i1-- - j2-- - i2-- - } - return -} - -// CountLabel counts the number of labels in the string s. -// s must be a syntactically valid domain name. -func CountLabel(s string) (labels int) { - if s == "." { - return - } - off := 0 - end := false - for { - off, end = NextLabel(s, off) - labels++ - if end { - return - } - } -} - -// Split splits a name s into its label indexes. -// www.miek.nl. returns []int{0, 4, 9}, www.miek.nl also returns []int{0, 4, 9}. -// The root name (.) returns nil. Also see SplitDomainName. -// s must be a syntactically valid domain name. -func Split(s string) []int { - if s == "." { - return nil - } - idx := make([]int, 1, 3) - off := 0 - end := false - - for { - off, end = NextLabel(s, off) - if end { - return idx - } - idx = append(idx, off) - } -} - -// NextLabel returns the index of the start of the next label in the -// string s starting at offset. -// The bool end is true when the end of the string has been reached. -// Also see PrevLabel. -func NextLabel(s string, offset int) (i int, end bool) { - if s == "" { - return 0, true - } - for i = offset; i < len(s)-1; i++ { - if s[i] != '.' { - continue - } - j := i - 1 - for j >= 0 && s[j] == '\\' { - j-- - } - - if (j-i)%2 == 0 { - continue - } - - return i + 1, false - } - return i + 1, true -} - -// PrevLabel returns the index of the label when starting from the right and -// jumping n labels to the left. -// The bool start is true when the start of the string has been overshot. -// Also see NextLabel. -func PrevLabel(s string, n int) (i int, start bool) { - if s == "" { - return 0, true - } - if n == 0 { - return len(s), false - } - - l := len(s) - 1 - if s[l] == '.' { - l-- - } - - for ; l >= 0 && n > 0; l-- { - if s[l] != '.' { - continue - } - j := l - 1 - for j >= 0 && s[j] == '\\' { - j-- - } - - if (j-l)%2 == 0 { - continue - } - - n-- - if n == 0 { - return l + 1, false - } - } - - return 0, n > 1 -} - -// equal compares a and b while ignoring case. It returns true when equal otherwise false. -func equal(a, b string) bool { - // might be lifted into API function. - la := len(a) - lb := len(b) - if la != lb { - return false - } - - for i := la - 1; i >= 0; i-- { - ai := a[i] - bi := b[i] - if ai >= 'A' && ai <= 'Z' { - ai |= 'a' - 'A' - } - if bi >= 'A' && bi <= 'Z' { - bi |= 'a' - 'A' - } - if ai != bi { - return false - } - } - return true -} diff --git a/vendor/github.com/miekg/dns/listen_no_reuseport.go b/vendor/github.com/miekg/dns/listen_no_reuseport.go deleted file mode 100644 index b9201417ab..0000000000 --- a/vendor/github.com/miekg/dns/listen_no_reuseport.go +++ /dev/null @@ -1,23 +0,0 @@ -// +build !go1.11 !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd - -package dns - -import "net" - -const supportsReusePort = false - -func listenTCP(network, addr string, reuseport bool) (net.Listener, error) { - if reuseport { - // TODO(tmthrgd): return an error? - } - - return net.Listen(network, addr) -} - -func listenUDP(network, addr string, reuseport bool) (net.PacketConn, error) { - if reuseport { - // TODO(tmthrgd): return an error? - } - - return net.ListenPacket(network, addr) -} diff --git a/vendor/github.com/miekg/dns/listen_reuseport.go b/vendor/github.com/miekg/dns/listen_reuseport.go deleted file mode 100644 index fad195cfeb..0000000000 --- a/vendor/github.com/miekg/dns/listen_reuseport.go +++ /dev/null @@ -1,44 +0,0 @@ -// +build go1.11 -// +build aix darwin dragonfly freebsd linux netbsd openbsd - -package dns - -import ( - "context" - "net" - "syscall" - - "golang.org/x/sys/unix" -) - -const supportsReusePort = true - -func reuseportControl(network, address string, c syscall.RawConn) error { - var opErr error - err := c.Control(func(fd uintptr) { - opErr = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1) - }) - if err != nil { - return err - } - - return opErr -} - -func listenTCP(network, addr string, reuseport bool) (net.Listener, error) { - var lc net.ListenConfig - if reuseport { - lc.Control = reuseportControl - } - - return lc.Listen(context.Background(), network, addr) -} - -func listenUDP(network, addr string, reuseport bool) (net.PacketConn, error) { - var lc net.ListenConfig - if reuseport { - lc.Control = reuseportControl - } - - return lc.ListenPacket(context.Background(), network, addr) -} diff --git a/vendor/github.com/miekg/dns/msg.go b/vendor/github.com/miekg/dns/msg.go deleted file mode 100644 index ead4b6931d..0000000000 --- a/vendor/github.com/miekg/dns/msg.go +++ /dev/null @@ -1,1197 +0,0 @@ -// DNS packet assembly, see RFC 1035. Converting from - Unpack() - -// and to - Pack() - wire format. -// All the packers and unpackers take a (msg []byte, off int) -// and return (off1 int, ok bool). If they return ok==false, they -// also return off1==len(msg), so that the next unpacker will -// also fail. This lets us avoid checks of ok until the end of a -// packing sequence. - -package dns - -//go:generate go run msg_generate.go - -import ( - "crypto/rand" - "encoding/binary" - "fmt" - "math/big" - "strconv" - "strings" -) - -const ( - maxCompressionOffset = 2 << 13 // We have 14 bits for the compression pointer - maxDomainNameWireOctets = 255 // See RFC 1035 section 2.3.4 - - // This is the maximum number of compression pointers that should occur in a - // semantically valid message. Each label in a domain name must be at least one - // octet and is separated by a period. The root label won't be represented by a - // compression pointer to a compression pointer, hence the -2 to exclude the - // smallest valid root label. - // - // It is possible to construct a valid message that has more compression pointers - // than this, and still doesn't loop, by pointing to a previous pointer. This is - // not something a well written implementation should ever do, so we leave them - // to trip the maximum compression pointer check. - maxCompressionPointers = (maxDomainNameWireOctets+1)/2 - 2 - - // This is the maximum length of a domain name in presentation format. The - // maximum wire length of a domain name is 255 octets (see above), with the - // maximum label length being 63. The wire format requires one extra byte over - // the presentation format, reducing the number of octets by 1. Each label in - // the name will be separated by a single period, with each octet in the label - // expanding to at most 4 bytes (\DDD). If all other labels are of the maximum - // length, then the final label can only be 61 octets long to not exceed the - // maximum allowed wire length. - maxDomainNamePresentationLength = 61*4 + 1 + 63*4 + 1 + 63*4 + 1 + 63*4 + 1 -) - -// Errors defined in this package. -var ( - ErrAlg error = &Error{err: "bad algorithm"} // ErrAlg indicates an error with the (DNSSEC) algorithm. - ErrAuth error = &Error{err: "bad authentication"} // ErrAuth indicates an error in the TSIG authentication. - ErrBuf error = &Error{err: "buffer size too small"} // ErrBuf indicates that the buffer used is too small for the message. - ErrConnEmpty error = &Error{err: "conn has no connection"} // ErrConnEmpty indicates a connection is being used before it is initialized. - ErrExtendedRcode error = &Error{err: "bad extended rcode"} // ErrExtendedRcode ... - ErrFqdn error = &Error{err: "domain must be fully qualified"} // ErrFqdn indicates that a domain name does not have a closing dot. - ErrId error = &Error{err: "id mismatch"} // ErrId indicates there is a mismatch with the message's ID. - ErrKeyAlg error = &Error{err: "bad key algorithm"} // ErrKeyAlg indicates that the algorithm in the key is not valid. - ErrKey error = &Error{err: "bad key"} - ErrKeySize error = &Error{err: "bad key size"} - ErrLongDomain error = &Error{err: fmt.Sprintf("domain name exceeded %d wire-format octets", maxDomainNameWireOctets)} - ErrNoSig error = &Error{err: "no signature found"} - ErrPrivKey error = &Error{err: "bad private key"} - ErrRcode error = &Error{err: "bad rcode"} - ErrRdata error = &Error{err: "bad rdata"} - ErrRRset error = &Error{err: "bad rrset"} - ErrSecret error = &Error{err: "no secrets defined"} - ErrShortRead error = &Error{err: "short read"} - ErrSig error = &Error{err: "bad signature"} // ErrSig indicates that a signature can not be cryptographically validated. - ErrSoa error = &Error{err: "no SOA"} // ErrSOA indicates that no SOA RR was seen when doing zone transfers. - ErrTime error = &Error{err: "bad time"} // ErrTime indicates a timing error in TSIG authentication. -) - -// Id by default returns a 16-bit random number to be used as a message id. The -// number is drawn from a cryptographically secure random number generator. -// This being a variable the function can be reassigned to a custom function. -// For instance, to make it return a static value for testing: -// -// dns.Id = func() uint16 { return 3 } -var Id = id - -// id returns a 16 bits random number to be used as a -// message id. The random provided should be good enough. -func id() uint16 { - var output uint16 - err := binary.Read(rand.Reader, binary.BigEndian, &output) - if err != nil { - panic("dns: reading random id failed: " + err.Error()) - } - return output -} - -// MsgHdr is a a manually-unpacked version of (id, bits). -type MsgHdr struct { - Id uint16 - Response bool - Opcode int - Authoritative bool - Truncated bool - RecursionDesired bool - RecursionAvailable bool - Zero bool - AuthenticatedData bool - CheckingDisabled bool - Rcode int -} - -// Msg contains the layout of a DNS message. -type Msg struct { - MsgHdr - Compress bool `json:"-"` // If true, the message will be compressed when converted to wire format. - Question []Question // Holds the RR(s) of the question section. - Answer []RR // Holds the RR(s) of the answer section. - Ns []RR // Holds the RR(s) of the authority section. - Extra []RR // Holds the RR(s) of the additional section. -} - -// ClassToString is a maps Classes to strings for each CLASS wire type. -var ClassToString = map[uint16]string{ - ClassINET: "IN", - ClassCSNET: "CS", - ClassCHAOS: "CH", - ClassHESIOD: "HS", - ClassNONE: "NONE", - ClassANY: "ANY", -} - -// OpcodeToString maps Opcodes to strings. -var OpcodeToString = map[int]string{ - OpcodeQuery: "QUERY", - OpcodeIQuery: "IQUERY", - OpcodeStatus: "STATUS", - OpcodeNotify: "NOTIFY", - OpcodeUpdate: "UPDATE", -} - -// RcodeToString maps Rcodes to strings. -var RcodeToString = map[int]string{ - RcodeSuccess: "NOERROR", - RcodeFormatError: "FORMERR", - RcodeServerFailure: "SERVFAIL", - RcodeNameError: "NXDOMAIN", - RcodeNotImplemented: "NOTIMP", - RcodeRefused: "REFUSED", - RcodeYXDomain: "YXDOMAIN", // See RFC 2136 - RcodeYXRrset: "YXRRSET", - RcodeNXRrset: "NXRRSET", - RcodeNotAuth: "NOTAUTH", - RcodeNotZone: "NOTZONE", - RcodeBadSig: "BADSIG", // Also known as RcodeBadVers, see RFC 6891 - // RcodeBadVers: "BADVERS", - RcodeBadKey: "BADKEY", - RcodeBadTime: "BADTIME", - RcodeBadMode: "BADMODE", - RcodeBadName: "BADNAME", - RcodeBadAlg: "BADALG", - RcodeBadTrunc: "BADTRUNC", - RcodeBadCookie: "BADCOOKIE", -} - -// compressionMap is used to allow a more efficient compression map -// to be used for internal packDomainName calls without changing the -// signature or functionality of public API. -// -// In particular, map[string]uint16 uses 25% less per-entry memory -// than does map[string]int. -type compressionMap struct { - ext map[string]int // external callers - int map[string]uint16 // internal callers -} - -func (m compressionMap) valid() bool { - return m.int != nil || m.ext != nil -} - -func (m compressionMap) insert(s string, pos int) { - if m.ext != nil { - m.ext[s] = pos - } else { - m.int[s] = uint16(pos) - } -} - -func (m compressionMap) find(s string) (int, bool) { - if m.ext != nil { - pos, ok := m.ext[s] - return pos, ok - } - - pos, ok := m.int[s] - return int(pos), ok -} - -// Domain names are a sequence of counted strings -// split at the dots. They end with a zero-length string. - -// PackDomainName packs a domain name s into msg[off:]. -// If compression is wanted compress must be true and the compression -// map needs to hold a mapping between domain names and offsets -// pointing into msg. -func PackDomainName(s string, msg []byte, off int, compression map[string]int, compress bool) (off1 int, err error) { - return packDomainName(s, msg, off, compressionMap{ext: compression}, compress) -} - -func packDomainName(s string, msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - // XXX: A logical copy of this function exists in IsDomainName and - // should be kept in sync with this function. - - ls := len(s) - if ls == 0 { // Ok, for instance when dealing with update RR without any rdata. - return off, nil - } - - // If not fully qualified, error out. - if !IsFqdn(s) { - return len(msg), ErrFqdn - } - - // Each dot ends a segment of the name. - // We trade each dot byte for a length byte. - // Except for escaped dots (\.), which are normal dots. - // There is also a trailing zero. - - // Compression - pointer := -1 - - // Emit sequence of counted strings, chopping at dots. - var ( - begin int - compBegin int - compOff int - bs []byte - wasDot bool - ) -loop: - for i := 0; i < ls; i++ { - var c byte - if bs == nil { - c = s[i] - } else { - c = bs[i] - } - - switch c { - case '\\': - if off+1 > len(msg) { - return len(msg), ErrBuf - } - - if bs == nil { - bs = []byte(s) - } - - // check for \DDD - if i+3 < ls && isDigit(bs[i+1]) && isDigit(bs[i+2]) && isDigit(bs[i+3]) { - bs[i] = dddToByte(bs[i+1:]) - copy(bs[i+1:ls-3], bs[i+4:]) - ls -= 3 - compOff += 3 - } else { - copy(bs[i:ls-1], bs[i+1:]) - ls-- - compOff++ - } - - wasDot = false - case '.': - if wasDot { - // two dots back to back is not legal - return len(msg), ErrRdata - } - wasDot = true - - labelLen := i - begin - if labelLen >= 1<<6 { // top two bits of length must be clear - return len(msg), ErrRdata - } - - // off can already (we're in a loop) be bigger than len(msg) - // this happens when a name isn't fully qualified - if off+1+labelLen > len(msg) { - return len(msg), ErrBuf - } - - // Don't try to compress '.' - // We should only compress when compress is true, but we should also still pick - // up names that can be used for *future* compression(s). - if compression.valid() && !isRootLabel(s, bs, begin, ls) { - if p, ok := compression.find(s[compBegin:]); ok { - // The first hit is the longest matching dname - // keep the pointer offset we get back and store - // the offset of the current name, because that's - // where we need to insert the pointer later - - // If compress is true, we're allowed to compress this dname - if compress { - pointer = p // Where to point to - break loop - } - } else if off < maxCompressionOffset { - // Only offsets smaller than maxCompressionOffset can be used. - compression.insert(s[compBegin:], off) - } - } - - // The following is covered by the length check above. - msg[off] = byte(labelLen) - - if bs == nil { - copy(msg[off+1:], s[begin:i]) - } else { - copy(msg[off+1:], bs[begin:i]) - } - off += 1 + labelLen - - begin = i + 1 - compBegin = begin + compOff - default: - wasDot = false - } - } - - // Root label is special - if isRootLabel(s, bs, 0, ls) { - return off, nil - } - - // If we did compression and we find something add the pointer here - if pointer != -1 { - // We have two bytes (14 bits) to put the pointer in - binary.BigEndian.PutUint16(msg[off:], uint16(pointer^0xC000)) - return off + 2, nil - } - - if off < len(msg) { - msg[off] = 0 - } - - return off + 1, nil -} - -// isRootLabel returns whether s or bs, from off to end, is the root -// label ".". -// -// If bs is nil, s will be checked, otherwise bs will be checked. -func isRootLabel(s string, bs []byte, off, end int) bool { - if bs == nil { - return s[off:end] == "." - } - - return end-off == 1 && bs[off] == '.' -} - -// Unpack a domain name. -// In addition to the simple sequences of counted strings above, -// domain names are allowed to refer to strings elsewhere in the -// packet, to avoid repeating common suffixes when returning -// many entries in a single domain. The pointers are marked -// by a length byte with the top two bits set. Ignoring those -// two bits, that byte and the next give a 14 bit offset from msg[0] -// where we should pick up the trail. -// Note that if we jump elsewhere in the packet, -// we return off1 == the offset after the first pointer we found, -// which is where the next record will start. -// In theory, the pointers are only allowed to jump backward. -// We let them jump anywhere and stop jumping after a while. - -// UnpackDomainName unpacks a domain name into a string. It returns -// the name, the new offset into msg and any error that occurred. -// -// When an error is encountered, the unpacked name will be discarded -// and len(msg) will be returned as the offset. -func UnpackDomainName(msg []byte, off int) (string, int, error) { - s := make([]byte, 0, maxDomainNamePresentationLength) - off1 := 0 - lenmsg := len(msg) - budget := maxDomainNameWireOctets - ptr := 0 // number of pointers followed -Loop: - for { - if off >= lenmsg { - return "", lenmsg, ErrBuf - } - c := int(msg[off]) - off++ - switch c & 0xC0 { - case 0x00: - if c == 0x00 { - // end of name - break Loop - } - // literal string - if off+c > lenmsg { - return "", lenmsg, ErrBuf - } - budget -= c + 1 // +1 for the label separator - if budget <= 0 { - return "", lenmsg, ErrLongDomain - } - for _, b := range msg[off : off+c] { - if isDomainNameLabelSpecial(b) { - s = append(s, '\\', b) - } else if b < ' ' || b > '~' { - s = append(s, escapeByte(b)...) - } else { - s = append(s, b) - } - } - s = append(s, '.') - off += c - case 0xC0: - // pointer to somewhere else in msg. - // remember location after first ptr, - // since that's how many bytes we consumed. - // also, don't follow too many pointers -- - // maybe there's a loop. - if off >= lenmsg { - return "", lenmsg, ErrBuf - } - c1 := msg[off] - off++ - if ptr == 0 { - off1 = off - } - if ptr++; ptr > maxCompressionPointers { - return "", lenmsg, &Error{err: "too many compression pointers"} - } - // pointer should guarantee that it advances and points forwards at least - // but the condition on previous three lines guarantees that it's - // at least loop-free - off = (c^0xC0)<<8 | int(c1) - default: - // 0x80 and 0x40 are reserved - return "", lenmsg, ErrRdata - } - } - if ptr == 0 { - off1 = off - } - if len(s) == 0 { - return ".", off1, nil - } - return string(s), off1, nil -} - -func packTxt(txt []string, msg []byte, offset int, tmp []byte) (int, error) { - if len(txt) == 0 { - if offset >= len(msg) { - return offset, ErrBuf - } - msg[offset] = 0 - return offset, nil - } - var err error - for _, s := range txt { - if len(s) > len(tmp) { - return offset, ErrBuf - } - offset, err = packTxtString(s, msg, offset, tmp) - if err != nil { - return offset, err - } - } - return offset, nil -} - -func packTxtString(s string, msg []byte, offset int, tmp []byte) (int, error) { - lenByteOffset := offset - if offset >= len(msg) || len(s) > len(tmp) { - return offset, ErrBuf - } - offset++ - bs := tmp[:len(s)] - copy(bs, s) - for i := 0; i < len(bs); i++ { - if len(msg) <= offset { - return offset, ErrBuf - } - if bs[i] == '\\' { - i++ - if i == len(bs) { - break - } - // check for \DDD - if i+2 < len(bs) && isDigit(bs[i]) && isDigit(bs[i+1]) && isDigit(bs[i+2]) { - msg[offset] = dddToByte(bs[i:]) - i += 2 - } else { - msg[offset] = bs[i] - } - } else { - msg[offset] = bs[i] - } - offset++ - } - l := offset - lenByteOffset - 1 - if l > 255 { - return offset, &Error{err: "string exceeded 255 bytes in txt"} - } - msg[lenByteOffset] = byte(l) - return offset, nil -} - -func packOctetString(s string, msg []byte, offset int, tmp []byte) (int, error) { - if offset >= len(msg) || len(s) > len(tmp) { - return offset, ErrBuf - } - bs := tmp[:len(s)] - copy(bs, s) - for i := 0; i < len(bs); i++ { - if len(msg) <= offset { - return offset, ErrBuf - } - if bs[i] == '\\' { - i++ - if i == len(bs) { - break - } - // check for \DDD - if i+2 < len(bs) && isDigit(bs[i]) && isDigit(bs[i+1]) && isDigit(bs[i+2]) { - msg[offset] = dddToByte(bs[i:]) - i += 2 - } else { - msg[offset] = bs[i] - } - } else { - msg[offset] = bs[i] - } - offset++ - } - return offset, nil -} - -func unpackTxt(msg []byte, off0 int) (ss []string, off int, err error) { - off = off0 - var s string - for off < len(msg) && err == nil { - s, off, err = unpackString(msg, off) - if err == nil { - ss = append(ss, s) - } - } - return -} - -// Helpers for dealing with escaped bytes -func isDigit(b byte) bool { return b >= '0' && b <= '9' } - -func dddToByte(s []byte) byte { - _ = s[2] // bounds check hint to compiler; see golang.org/issue/14808 - return byte((s[0]-'0')*100 + (s[1]-'0')*10 + (s[2] - '0')) -} - -func dddStringToByte(s string) byte { - _ = s[2] // bounds check hint to compiler; see golang.org/issue/14808 - return byte((s[0]-'0')*100 + (s[1]-'0')*10 + (s[2] - '0')) -} - -// Helper function for packing and unpacking -func intToBytes(i *big.Int, length int) []byte { - buf := i.Bytes() - if len(buf) < length { - b := make([]byte, length) - copy(b[length-len(buf):], buf) - return b - } - return buf -} - -// PackRR packs a resource record rr into msg[off:]. -// See PackDomainName for documentation about the compression. -func PackRR(rr RR, msg []byte, off int, compression map[string]int, compress bool) (off1 int, err error) { - headerEnd, off1, err := packRR(rr, msg, off, compressionMap{ext: compression}, compress) - if err == nil { - // packRR no longer sets the Rdlength field on the rr, but - // callers might be expecting it so we set it here. - rr.Header().Rdlength = uint16(off1 - headerEnd) - } - return off1, err -} - -func packRR(rr RR, msg []byte, off int, compression compressionMap, compress bool) (headerEnd int, off1 int, err error) { - if rr == nil { - return len(msg), len(msg), &Error{err: "nil rr"} - } - - headerEnd, err = rr.Header().packHeader(msg, off, compression, compress) - if err != nil { - return headerEnd, len(msg), err - } - - off1, err = rr.pack(msg, headerEnd, compression, compress) - if err != nil { - return headerEnd, len(msg), err - } - - rdlength := off1 - headerEnd - if int(uint16(rdlength)) != rdlength { // overflow - return headerEnd, len(msg), ErrRdata - } - - // The RDLENGTH field is the last field in the header and we set it here. - binary.BigEndian.PutUint16(msg[headerEnd-2:], uint16(rdlength)) - return headerEnd, off1, nil -} - -// UnpackRR unpacks msg[off:] into an RR. -func UnpackRR(msg []byte, off int) (rr RR, off1 int, err error) { - h, off, msg, err := unpackHeader(msg, off) - if err != nil { - return nil, len(msg), err - } - - return UnpackRRWithHeader(h, msg, off) -} - -// UnpackRRWithHeader unpacks the record type specific payload given an existing -// RR_Header. -func UnpackRRWithHeader(h RR_Header, msg []byte, off int) (rr RR, off1 int, err error) { - if newFn, ok := TypeToRR[h.Rrtype]; ok { - rr = newFn() - *rr.Header() = h - } else { - rr = &RFC3597{Hdr: h} - } - - if off < 0 || off > len(msg) { - return &h, off, &Error{err: "bad off"} - } - - end := off + int(h.Rdlength) - if end < off || end > len(msg) { - return &h, end, &Error{err: "bad rdlength"} - } - - if noRdata(h) { - return rr, off, nil - } - - off, err = rr.unpack(msg, off) - if err != nil { - return nil, end, err - } - if off != end { - return &h, end, &Error{err: "bad rdlength"} - } - - return rr, off, nil -} - -// unpackRRslice unpacks msg[off:] into an []RR. -// If we cannot unpack the whole array, then it will return nil -func unpackRRslice(l int, msg []byte, off int) (dst1 []RR, off1 int, err error) { - var r RR - // Don't pre-allocate, l may be under attacker control - var dst []RR - for i := 0; i < l; i++ { - off1 := off - r, off, err = UnpackRR(msg, off) - if err != nil { - off = len(msg) - break - } - // If offset does not increase anymore, l is a lie - if off1 == off { - break - } - dst = append(dst, r) - } - if err != nil && off == len(msg) { - dst = nil - } - return dst, off, err -} - -// Convert a MsgHdr to a string, with dig-like headers: -// -//;; opcode: QUERY, status: NOERROR, id: 48404 -// -//;; flags: qr aa rd ra; -func (h *MsgHdr) String() string { - if h == nil { - return "<nil> MsgHdr" - } - - s := ";; opcode: " + OpcodeToString[h.Opcode] - s += ", status: " + RcodeToString[h.Rcode] - s += ", id: " + strconv.Itoa(int(h.Id)) + "\n" - - s += ";; flags:" - if h.Response { - s += " qr" - } - if h.Authoritative { - s += " aa" - } - if h.Truncated { - s += " tc" - } - if h.RecursionDesired { - s += " rd" - } - if h.RecursionAvailable { - s += " ra" - } - if h.Zero { // Hmm - s += " z" - } - if h.AuthenticatedData { - s += " ad" - } - if h.CheckingDisabled { - s += " cd" - } - - s += ";" - return s -} - -// Pack packs a Msg: it is converted to to wire format. -// If the dns.Compress is true the message will be in compressed wire format. -func (dns *Msg) Pack() (msg []byte, err error) { - return dns.PackBuffer(nil) -} - -// PackBuffer packs a Msg, using the given buffer buf. If buf is too small a new buffer is allocated. -func (dns *Msg) PackBuffer(buf []byte) (msg []byte, err error) { - // If this message can't be compressed, avoid filling the - // compression map and creating garbage. - if dns.Compress && dns.isCompressible() { - compression := make(map[string]uint16) // Compression pointer mappings. - return dns.packBufferWithCompressionMap(buf, compressionMap{int: compression}, true) - } - - return dns.packBufferWithCompressionMap(buf, compressionMap{}, false) -} - -// packBufferWithCompressionMap packs a Msg, using the given buffer buf. -func (dns *Msg) packBufferWithCompressionMap(buf []byte, compression compressionMap, compress bool) (msg []byte, err error) { - if dns.Rcode < 0 || dns.Rcode > 0xFFF { - return nil, ErrRcode - } - - // Set extended rcode unconditionally if we have an opt, this will allow - // resetting the extended rcode bits if they need to. - if opt := dns.IsEdns0(); opt != nil { - opt.SetExtendedRcode(uint16(dns.Rcode)) - } else if dns.Rcode > 0xF { - // If Rcode is an extended one and opt is nil, error out. - return nil, ErrExtendedRcode - } - - // Convert convenient Msg into wire-like Header. - var dh Header - dh.Id = dns.Id - dh.Bits = uint16(dns.Opcode)<<11 | uint16(dns.Rcode&0xF) - if dns.Response { - dh.Bits |= _QR - } - if dns.Authoritative { - dh.Bits |= _AA - } - if dns.Truncated { - dh.Bits |= _TC - } - if dns.RecursionDesired { - dh.Bits |= _RD - } - if dns.RecursionAvailable { - dh.Bits |= _RA - } - if dns.Zero { - dh.Bits |= _Z - } - if dns.AuthenticatedData { - dh.Bits |= _AD - } - if dns.CheckingDisabled { - dh.Bits |= _CD - } - - dh.Qdcount = uint16(len(dns.Question)) - dh.Ancount = uint16(len(dns.Answer)) - dh.Nscount = uint16(len(dns.Ns)) - dh.Arcount = uint16(len(dns.Extra)) - - // We need the uncompressed length here, because we first pack it and then compress it. - msg = buf - uncompressedLen := msgLenWithCompressionMap(dns, nil) - if packLen := uncompressedLen + 1; len(msg) < packLen { - msg = make([]byte, packLen) - } - - // Pack it in: header and then the pieces. - off := 0 - off, err = dh.pack(msg, off, compression, compress) - if err != nil { - return nil, err - } - for _, r := range dns.Question { - off, err = r.pack(msg, off, compression, compress) - if err != nil { - return nil, err - } - } - for _, r := range dns.Answer { - _, off, err = packRR(r, msg, off, compression, compress) - if err != nil { - return nil, err - } - } - for _, r := range dns.Ns { - _, off, err = packRR(r, msg, off, compression, compress) - if err != nil { - return nil, err - } - } - for _, r := range dns.Extra { - _, off, err = packRR(r, msg, off, compression, compress) - if err != nil { - return nil, err - } - } - return msg[:off], nil -} - -func (dns *Msg) unpack(dh Header, msg []byte, off int) (err error) { - // If we are at the end of the message we should return *just* the - // header. This can still be useful to the caller. 9.9.9.9 sends these - // when responding with REFUSED for instance. - if off == len(msg) { - // reset sections before returning - dns.Question, dns.Answer, dns.Ns, dns.Extra = nil, nil, nil, nil - return nil - } - - // Qdcount, Ancount, Nscount, Arcount can't be trusted, as they are - // attacker controlled. This means we can't use them to pre-allocate - // slices. - dns.Question = nil - for i := 0; i < int(dh.Qdcount); i++ { - off1 := off - var q Question - q, off, err = unpackQuestion(msg, off) - if err != nil { - return err - } - if off1 == off { // Offset does not increase anymore, dh.Qdcount is a lie! - dh.Qdcount = uint16(i) - break - } - dns.Question = append(dns.Question, q) - } - - dns.Answer, off, err = unpackRRslice(int(dh.Ancount), msg, off) - // The header counts might have been wrong so we need to update it - dh.Ancount = uint16(len(dns.Answer)) - if err == nil { - dns.Ns, off, err = unpackRRslice(int(dh.Nscount), msg, off) - } - // The header counts might have been wrong so we need to update it - dh.Nscount = uint16(len(dns.Ns)) - if err == nil { - dns.Extra, off, err = unpackRRslice(int(dh.Arcount), msg, off) - } - // The header counts might have been wrong so we need to update it - dh.Arcount = uint16(len(dns.Extra)) - - // Set extended Rcode - if opt := dns.IsEdns0(); opt != nil { - dns.Rcode |= opt.ExtendedRcode() - } - - if off != len(msg) { - // TODO(miek) make this an error? - // use PackOpt to let people tell how detailed the error reporting should be? - // println("dns: extra bytes in dns packet", off, "<", len(msg)) - } - return err - -} - -// Unpack unpacks a binary message to a Msg structure. -func (dns *Msg) Unpack(msg []byte) (err error) { - dh, off, err := unpackMsgHdr(msg, 0) - if err != nil { - return err - } - - dns.setHdr(dh) - return dns.unpack(dh, msg, off) -} - -// Convert a complete message to a string with dig-like output. -func (dns *Msg) String() string { - if dns == nil { - return "<nil> MsgHdr" - } - s := dns.MsgHdr.String() + " " - s += "QUERY: " + strconv.Itoa(len(dns.Question)) + ", " - s += "ANSWER: " + strconv.Itoa(len(dns.Answer)) + ", " - s += "AUTHORITY: " + strconv.Itoa(len(dns.Ns)) + ", " - s += "ADDITIONAL: " + strconv.Itoa(len(dns.Extra)) + "\n" - if len(dns.Question) > 0 { - s += "\n;; QUESTION SECTION:\n" - for _, r := range dns.Question { - s += r.String() + "\n" - } - } - if len(dns.Answer) > 0 { - s += "\n;; ANSWER SECTION:\n" - for _, r := range dns.Answer { - if r != nil { - s += r.String() + "\n" - } - } - } - if len(dns.Ns) > 0 { - s += "\n;; AUTHORITY SECTION:\n" - for _, r := range dns.Ns { - if r != nil { - s += r.String() + "\n" - } - } - } - if len(dns.Extra) > 0 { - s += "\n;; ADDITIONAL SECTION:\n" - for _, r := range dns.Extra { - if r != nil { - s += r.String() + "\n" - } - } - } - return s -} - -// isCompressible returns whether the msg may be compressible. -func (dns *Msg) isCompressible() bool { - // If we only have one question, there is nothing we can ever compress. - return len(dns.Question) > 1 || len(dns.Answer) > 0 || - len(dns.Ns) > 0 || len(dns.Extra) > 0 -} - -// Len returns the message length when in (un)compressed wire format. -// If dns.Compress is true compression it is taken into account. Len() -// is provided to be a faster way to get the size of the resulting packet, -// than packing it, measuring the size and discarding the buffer. -func (dns *Msg) Len() int { - // If this message can't be compressed, avoid filling the - // compression map and creating garbage. - if dns.Compress && dns.isCompressible() { - compression := make(map[string]struct{}) - return msgLenWithCompressionMap(dns, compression) - } - - return msgLenWithCompressionMap(dns, nil) -} - -func msgLenWithCompressionMap(dns *Msg, compression map[string]struct{}) int { - l := headerSize - - for _, r := range dns.Question { - l += r.len(l, compression) - } - for _, r := range dns.Answer { - if r != nil { - l += r.len(l, compression) - } - } - for _, r := range dns.Ns { - if r != nil { - l += r.len(l, compression) - } - } - for _, r := range dns.Extra { - if r != nil { - l += r.len(l, compression) - } - } - - return l -} - -func domainNameLen(s string, off int, compression map[string]struct{}, compress bool) int { - if s == "" || s == "." { - return 1 - } - - escaped := strings.Contains(s, "\\") - - if compression != nil && (compress || off < maxCompressionOffset) { - // compressionLenSearch will insert the entry into the compression - // map if it doesn't contain it. - if l, ok := compressionLenSearch(compression, s, off); ok && compress { - if escaped { - return escapedNameLen(s[:l]) + 2 - } - - return l + 2 - } - } - - if escaped { - return escapedNameLen(s) + 1 - } - - return len(s) + 1 -} - -func escapedNameLen(s string) int { - nameLen := len(s) - for i := 0; i < len(s); i++ { - if s[i] != '\\' { - continue - } - - if i+3 < len(s) && isDigit(s[i+1]) && isDigit(s[i+2]) && isDigit(s[i+3]) { - nameLen -= 3 - i += 3 - } else { - nameLen-- - i++ - } - } - - return nameLen -} - -func compressionLenSearch(c map[string]struct{}, s string, msgOff int) (int, bool) { - for off, end := 0, false; !end; off, end = NextLabel(s, off) { - if _, ok := c[s[off:]]; ok { - return off, true - } - - if msgOff+off < maxCompressionOffset { - c[s[off:]] = struct{}{} - } - } - - return 0, false -} - -// Copy returns a new RR which is a deep-copy of r. -func Copy(r RR) RR { return r.copy() } - -// Len returns the length (in octets) of the uncompressed RR in wire format. -func Len(r RR) int { return r.len(0, nil) } - -// Copy returns a new *Msg which is a deep-copy of dns. -func (dns *Msg) Copy() *Msg { return dns.CopyTo(new(Msg)) } - -// CopyTo copies the contents to the provided message using a deep-copy and returns the copy. -func (dns *Msg) CopyTo(r1 *Msg) *Msg { - r1.MsgHdr = dns.MsgHdr - r1.Compress = dns.Compress - - if len(dns.Question) > 0 { - r1.Question = make([]Question, len(dns.Question)) - copy(r1.Question, dns.Question) // TODO(miek): Question is an immutable value, ok to do a shallow-copy - } - - rrArr := make([]RR, len(dns.Answer)+len(dns.Ns)+len(dns.Extra)) - r1.Answer, rrArr = rrArr[:0:len(dns.Answer)], rrArr[len(dns.Answer):] - r1.Ns, rrArr = rrArr[:0:len(dns.Ns)], rrArr[len(dns.Ns):] - r1.Extra = rrArr[:0:len(dns.Extra)] - - for _, r := range dns.Answer { - r1.Answer = append(r1.Answer, r.copy()) - } - - for _, r := range dns.Ns { - r1.Ns = append(r1.Ns, r.copy()) - } - - for _, r := range dns.Extra { - r1.Extra = append(r1.Extra, r.copy()) - } - - return r1 -} - -func (q *Question) pack(msg []byte, off int, compression compressionMap, compress bool) (int, error) { - off, err := packDomainName(q.Name, msg, off, compression, compress) - if err != nil { - return off, err - } - off, err = packUint16(q.Qtype, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(q.Qclass, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func unpackQuestion(msg []byte, off int) (Question, int, error) { - var ( - q Question - err error - ) - q.Name, off, err = UnpackDomainName(msg, off) - if err != nil { - return q, off, err - } - if off == len(msg) { - return q, off, nil - } - q.Qtype, off, err = unpackUint16(msg, off) - if err != nil { - return q, off, err - } - if off == len(msg) { - return q, off, nil - } - q.Qclass, off, err = unpackUint16(msg, off) - if off == len(msg) { - return q, off, nil - } - return q, off, err -} - -func (dh *Header) pack(msg []byte, off int, compression compressionMap, compress bool) (int, error) { - off, err := packUint16(dh.Id, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Bits, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Qdcount, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Ancount, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Nscount, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Arcount, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func unpackMsgHdr(msg []byte, off int) (Header, int, error) { - var ( - dh Header - err error - ) - dh.Id, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, err - } - dh.Bits, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, err - } - dh.Qdcount, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, err - } - dh.Ancount, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, err - } - dh.Nscount, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, err - } - dh.Arcount, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, err - } - return dh, off, nil -} - -// setHdr set the header in the dns using the binary data in dh. -func (dns *Msg) setHdr(dh Header) { - dns.Id = dh.Id - dns.Response = dh.Bits&_QR != 0 - dns.Opcode = int(dh.Bits>>11) & 0xF - dns.Authoritative = dh.Bits&_AA != 0 - dns.Truncated = dh.Bits&_TC != 0 - dns.RecursionDesired = dh.Bits&_RD != 0 - dns.RecursionAvailable = dh.Bits&_RA != 0 - dns.Zero = dh.Bits&_Z != 0 // _Z covers the zero bit, which should be zero; not sure why we set it to the opposite. - dns.AuthenticatedData = dh.Bits&_AD != 0 - dns.CheckingDisabled = dh.Bits&_CD != 0 - dns.Rcode = int(dh.Bits & 0xF) -} diff --git a/vendor/github.com/miekg/dns/msg_helpers.go b/vendor/github.com/miekg/dns/msg_helpers.go deleted file mode 100644 index 5904927ca8..0000000000 --- a/vendor/github.com/miekg/dns/msg_helpers.go +++ /dev/null @@ -1,804 +0,0 @@ -package dns - -import ( - "encoding/base32" - "encoding/base64" - "encoding/binary" - "encoding/hex" - "net" - "sort" - "strings" -) - -// helper functions called from the generated zmsg.go - -// These function are named after the tag to help pack/unpack, if there is no tag it is the name -// of the type they pack/unpack (string, int, etc). We prefix all with unpackData or packData, so packDataA or -// packDataDomainName. - -func unpackDataA(msg []byte, off int) (net.IP, int, error) { - if off+net.IPv4len > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking a"} - } - a := append(make(net.IP, 0, net.IPv4len), msg[off:off+net.IPv4len]...) - off += net.IPv4len - return a, off, nil -} - -func packDataA(a net.IP, msg []byte, off int) (int, error) { - switch len(a) { - case net.IPv4len, net.IPv6len: - // It must be a slice of 4, even if it is 16, we encode only the first 4 - if off+net.IPv4len > len(msg) { - return len(msg), &Error{err: "overflow packing a"} - } - - copy(msg[off:], a.To4()) - off += net.IPv4len - case 0: - // Allowed, for dynamic updates. - default: - return len(msg), &Error{err: "overflow packing a"} - } - return off, nil -} - -func unpackDataAAAA(msg []byte, off int) (net.IP, int, error) { - if off+net.IPv6len > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking aaaa"} - } - aaaa := append(make(net.IP, 0, net.IPv6len), msg[off:off+net.IPv6len]...) - off += net.IPv6len - return aaaa, off, nil -} - -func packDataAAAA(aaaa net.IP, msg []byte, off int) (int, error) { - switch len(aaaa) { - case net.IPv6len: - if off+net.IPv6len > len(msg) { - return len(msg), &Error{err: "overflow packing aaaa"} - } - - copy(msg[off:], aaaa) - off += net.IPv6len - case 0: - // Allowed, dynamic updates. - default: - return len(msg), &Error{err: "overflow packing aaaa"} - } - return off, nil -} - -// unpackHeader unpacks an RR header, returning the offset to the end of the header and a -// re-sliced msg according to the expected length of the RR. -func unpackHeader(msg []byte, off int) (rr RR_Header, off1 int, truncmsg []byte, err error) { - hdr := RR_Header{} - if off == len(msg) { - return hdr, off, msg, nil - } - - hdr.Name, off, err = UnpackDomainName(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - hdr.Rrtype, off, err = unpackUint16(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - hdr.Class, off, err = unpackUint16(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - hdr.Ttl, off, err = unpackUint32(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - hdr.Rdlength, off, err = unpackUint16(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - msg, err = truncateMsgFromRdlength(msg, off, hdr.Rdlength) - return hdr, off, msg, err -} - -// packHeader packs an RR header, returning the offset to the end of the header. -// See PackDomainName for documentation about the compression. -func (hdr RR_Header) packHeader(msg []byte, off int, compression compressionMap, compress bool) (int, error) { - if off == len(msg) { - return off, nil - } - - off, err := packDomainName(hdr.Name, msg, off, compression, compress) - if err != nil { - return len(msg), err - } - off, err = packUint16(hdr.Rrtype, msg, off) - if err != nil { - return len(msg), err - } - off, err = packUint16(hdr.Class, msg, off) - if err != nil { - return len(msg), err - } - off, err = packUint32(hdr.Ttl, msg, off) - if err != nil { - return len(msg), err - } - off, err = packUint16(0, msg, off) // The RDLENGTH field will be set later in packRR. - if err != nil { - return len(msg), err - } - return off, nil -} - -// helper helper functions. - -// truncateMsgFromRdLength truncates msg to match the expected length of the RR. -// Returns an error if msg is smaller than the expected size. -func truncateMsgFromRdlength(msg []byte, off int, rdlength uint16) (truncmsg []byte, err error) { - lenrd := off + int(rdlength) - if lenrd > len(msg) { - return msg, &Error{err: "overflowing header size"} - } - return msg[:lenrd], nil -} - -var base32HexNoPadEncoding = base32.HexEncoding.WithPadding(base32.NoPadding) - -func fromBase32(s []byte) (buf []byte, err error) { - for i, b := range s { - if b >= 'a' && b <= 'z' { - s[i] = b - 32 - } - } - buflen := base32HexNoPadEncoding.DecodedLen(len(s)) - buf = make([]byte, buflen) - n, err := base32HexNoPadEncoding.Decode(buf, s) - buf = buf[:n] - return -} - -func toBase32(b []byte) string { - return base32HexNoPadEncoding.EncodeToString(b) -} - -func fromBase64(s []byte) (buf []byte, err error) { - buflen := base64.StdEncoding.DecodedLen(len(s)) - buf = make([]byte, buflen) - n, err := base64.StdEncoding.Decode(buf, s) - buf = buf[:n] - return -} - -func toBase64(b []byte) string { return base64.StdEncoding.EncodeToString(b) } - -// dynamicUpdate returns true if the Rdlength is zero. -func noRdata(h RR_Header) bool { return h.Rdlength == 0 } - -func unpackUint8(msg []byte, off int) (i uint8, off1 int, err error) { - if off+1 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint8"} - } - return msg[off], off + 1, nil -} - -func packUint8(i uint8, msg []byte, off int) (off1 int, err error) { - if off+1 > len(msg) { - return len(msg), &Error{err: "overflow packing uint8"} - } - msg[off] = i - return off + 1, nil -} - -func unpackUint16(msg []byte, off int) (i uint16, off1 int, err error) { - if off+2 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint16"} - } - return binary.BigEndian.Uint16(msg[off:]), off + 2, nil -} - -func packUint16(i uint16, msg []byte, off int) (off1 int, err error) { - if off+2 > len(msg) { - return len(msg), &Error{err: "overflow packing uint16"} - } - binary.BigEndian.PutUint16(msg[off:], i) - return off + 2, nil -} - -func unpackUint32(msg []byte, off int) (i uint32, off1 int, err error) { - if off+4 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint32"} - } - return binary.BigEndian.Uint32(msg[off:]), off + 4, nil -} - -func packUint32(i uint32, msg []byte, off int) (off1 int, err error) { - if off+4 > len(msg) { - return len(msg), &Error{err: "overflow packing uint32"} - } - binary.BigEndian.PutUint32(msg[off:], i) - return off + 4, nil -} - -func unpackUint48(msg []byte, off int) (i uint64, off1 int, err error) { - if off+6 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint64 as uint48"} - } - // Used in TSIG where the last 48 bits are occupied, so for now, assume a uint48 (6 bytes) - i = uint64(msg[off])<<40 | uint64(msg[off+1])<<32 | uint64(msg[off+2])<<24 | uint64(msg[off+3])<<16 | - uint64(msg[off+4])<<8 | uint64(msg[off+5]) - off += 6 - return i, off, nil -} - -func packUint48(i uint64, msg []byte, off int) (off1 int, err error) { - if off+6 > len(msg) { - return len(msg), &Error{err: "overflow packing uint64 as uint48"} - } - msg[off] = byte(i >> 40) - msg[off+1] = byte(i >> 32) - msg[off+2] = byte(i >> 24) - msg[off+3] = byte(i >> 16) - msg[off+4] = byte(i >> 8) - msg[off+5] = byte(i) - off += 6 - return off, nil -} - -func unpackUint64(msg []byte, off int) (i uint64, off1 int, err error) { - if off+8 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint64"} - } - return binary.BigEndian.Uint64(msg[off:]), off + 8, nil -} - -func packUint64(i uint64, msg []byte, off int) (off1 int, err error) { - if off+8 > len(msg) { - return len(msg), &Error{err: "overflow packing uint64"} - } - binary.BigEndian.PutUint64(msg[off:], i) - off += 8 - return off, nil -} - -func unpackString(msg []byte, off int) (string, int, error) { - if off+1 > len(msg) { - return "", off, &Error{err: "overflow unpacking txt"} - } - l := int(msg[off]) - off++ - if off+l > len(msg) { - return "", off, &Error{err: "overflow unpacking txt"} - } - var s strings.Builder - consumed := 0 - for i, b := range msg[off : off+l] { - switch { - case b == '"' || b == '\\': - if consumed == 0 { - s.Grow(l * 2) - } - s.Write(msg[off+consumed : off+i]) - s.WriteByte('\\') - s.WriteByte(b) - consumed = i + 1 - case b < ' ' || b > '~': // unprintable - if consumed == 0 { - s.Grow(l * 2) - } - s.Write(msg[off+consumed : off+i]) - s.WriteString(escapeByte(b)) - consumed = i + 1 - } - } - if consumed == 0 { // no escaping needed - return string(msg[off : off+l]), off + l, nil - } - s.Write(msg[off+consumed : off+l]) - return s.String(), off + l, nil -} - -func packString(s string, msg []byte, off int) (int, error) { - txtTmp := make([]byte, 256*4+1) - off, err := packTxtString(s, msg, off, txtTmp) - if err != nil { - return len(msg), err - } - return off, nil -} - -func unpackStringBase32(msg []byte, off, end int) (string, int, error) { - if end > len(msg) { - return "", len(msg), &Error{err: "overflow unpacking base32"} - } - s := toBase32(msg[off:end]) - return s, end, nil -} - -func packStringBase32(s string, msg []byte, off int) (int, error) { - b32, err := fromBase32([]byte(s)) - if err != nil { - return len(msg), err - } - if off+len(b32) > len(msg) { - return len(msg), &Error{err: "overflow packing base32"} - } - copy(msg[off:off+len(b32)], b32) - off += len(b32) - return off, nil -} - -func unpackStringBase64(msg []byte, off, end int) (string, int, error) { - // Rest of the RR is base64 encoded value, so we don't need an explicit length - // to be set. Thus far all RR's that have base64 encoded fields have those as their - // last one. What we do need is the end of the RR! - if end > len(msg) { - return "", len(msg), &Error{err: "overflow unpacking base64"} - } - s := toBase64(msg[off:end]) - return s, end, nil -} - -func packStringBase64(s string, msg []byte, off int) (int, error) { - b64, err := fromBase64([]byte(s)) - if err != nil { - return len(msg), err - } - if off+len(b64) > len(msg) { - return len(msg), &Error{err: "overflow packing base64"} - } - copy(msg[off:off+len(b64)], b64) - off += len(b64) - return off, nil -} - -func unpackStringHex(msg []byte, off, end int) (string, int, error) { - // Rest of the RR is hex encoded value, so we don't need an explicit length - // to be set. NSEC and TSIG have hex fields with a length field. - // What we do need is the end of the RR! - if end > len(msg) { - return "", len(msg), &Error{err: "overflow unpacking hex"} - } - - s := hex.EncodeToString(msg[off:end]) - return s, end, nil -} - -func packStringHex(s string, msg []byte, off int) (int, error) { - h, err := hex.DecodeString(s) - if err != nil { - return len(msg), err - } - if off+len(h) > len(msg) { - return len(msg), &Error{err: "overflow packing hex"} - } - copy(msg[off:off+len(h)], h) - off += len(h) - return off, nil -} - -func unpackStringAny(msg []byte, off, end int) (string, int, error) { - if end > len(msg) { - return "", len(msg), &Error{err: "overflow unpacking anything"} - } - return string(msg[off:end]), end, nil -} - -func packStringAny(s string, msg []byte, off int) (int, error) { - if off+len(s) > len(msg) { - return len(msg), &Error{err: "overflow packing anything"} - } - copy(msg[off:off+len(s)], s) - off += len(s) - return off, nil -} - -func unpackStringTxt(msg []byte, off int) ([]string, int, error) { - txt, off, err := unpackTxt(msg, off) - if err != nil { - return nil, len(msg), err - } - return txt, off, nil -} - -func packStringTxt(s []string, msg []byte, off int) (int, error) { - txtTmp := make([]byte, 256*4+1) // If the whole string consists out of \DDD we need this many. - off, err := packTxt(s, msg, off, txtTmp) - if err != nil { - return len(msg), err - } - return off, nil -} - -func unpackDataOpt(msg []byte, off int) ([]EDNS0, int, error) { - var edns []EDNS0 -Option: - var code uint16 - if off+4 > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking opt"} - } - code = binary.BigEndian.Uint16(msg[off:]) - off += 2 - optlen := binary.BigEndian.Uint16(msg[off:]) - off += 2 - if off+int(optlen) > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking opt"} - } - e := makeDataOpt(code) - if err := e.unpack(msg[off : off+int(optlen)]); err != nil { - return nil, len(msg), err - } - edns = append(edns, e) - off += int(optlen) - - if off < len(msg) { - goto Option - } - - return edns, off, nil -} - -func packDataOpt(options []EDNS0, msg []byte, off int) (int, error) { - for _, el := range options { - b, err := el.pack() - if err != nil || off+4 > len(msg) { - return len(msg), &Error{err: "overflow packing opt"} - } - binary.BigEndian.PutUint16(msg[off:], el.Option()) // Option code - binary.BigEndian.PutUint16(msg[off+2:], uint16(len(b))) // Length - off += 4 - if off+len(b) > len(msg) { - return len(msg), &Error{err: "overflow packing opt"} - } - // Actual data - copy(msg[off:off+len(b)], b) - off += len(b) - } - return off, nil -} - -func unpackStringOctet(msg []byte, off int) (string, int, error) { - s := string(msg[off:]) - return s, len(msg), nil -} - -func packStringOctet(s string, msg []byte, off int) (int, error) { - txtTmp := make([]byte, 256*4+1) - off, err := packOctetString(s, msg, off, txtTmp) - if err != nil { - return len(msg), err - } - return off, nil -} - -func unpackDataNsec(msg []byte, off int) ([]uint16, int, error) { - var nsec []uint16 - length, window, lastwindow := 0, 0, -1 - for off < len(msg) { - if off+2 > len(msg) { - return nsec, len(msg), &Error{err: "overflow unpacking nsecx"} - } - window = int(msg[off]) - length = int(msg[off+1]) - off += 2 - if window <= lastwindow { - // RFC 4034: Blocks are present in the NSEC RR RDATA in - // increasing numerical order. - return nsec, len(msg), &Error{err: "out of order NSEC block"} - } - if length == 0 { - // RFC 4034: Blocks with no types present MUST NOT be included. - return nsec, len(msg), &Error{err: "empty NSEC block"} - } - if length > 32 { - return nsec, len(msg), &Error{err: "NSEC block too long"} - } - if off+length > len(msg) { - return nsec, len(msg), &Error{err: "overflowing NSEC block"} - } - - // Walk the bytes in the window and extract the type bits - for j, b := range msg[off : off+length] { - // Check the bits one by one, and set the type - if b&0x80 == 0x80 { - nsec = append(nsec, uint16(window*256+j*8+0)) - } - if b&0x40 == 0x40 { - nsec = append(nsec, uint16(window*256+j*8+1)) - } - if b&0x20 == 0x20 { - nsec = append(nsec, uint16(window*256+j*8+2)) - } - if b&0x10 == 0x10 { - nsec = append(nsec, uint16(window*256+j*8+3)) - } - if b&0x8 == 0x8 { - nsec = append(nsec, uint16(window*256+j*8+4)) - } - if b&0x4 == 0x4 { - nsec = append(nsec, uint16(window*256+j*8+5)) - } - if b&0x2 == 0x2 { - nsec = append(nsec, uint16(window*256+j*8+6)) - } - if b&0x1 == 0x1 { - nsec = append(nsec, uint16(window*256+j*8+7)) - } - } - off += length - lastwindow = window - } - return nsec, off, nil -} - -// typeBitMapLen is a helper function which computes the "maximum" length of -// a the NSEC Type BitMap field. -func typeBitMapLen(bitmap []uint16) int { - var l int - var lastwindow, lastlength uint16 - for _, t := range bitmap { - window := t / 256 - length := (t-window*256)/8 + 1 - if window > lastwindow && lastlength != 0 { // New window, jump to the new offset - l += int(lastlength) + 2 - lastlength = 0 - } - if window < lastwindow || length < lastlength { - // packDataNsec would return Error{err: "nsec bits out of order"} here, but - // when computing the length, we want do be liberal. - continue - } - lastwindow, lastlength = window, length - } - l += int(lastlength) + 2 - return l -} - -func packDataNsec(bitmap []uint16, msg []byte, off int) (int, error) { - if len(bitmap) == 0 { - return off, nil - } - var lastwindow, lastlength uint16 - for _, t := range bitmap { - window := t / 256 - length := (t-window*256)/8 + 1 - if window > lastwindow && lastlength != 0 { // New window, jump to the new offset - off += int(lastlength) + 2 - lastlength = 0 - } - if window < lastwindow || length < lastlength { - return len(msg), &Error{err: "nsec bits out of order"} - } - if off+2+int(length) > len(msg) { - return len(msg), &Error{err: "overflow packing nsec"} - } - // Setting the window # - msg[off] = byte(window) - // Setting the octets length - msg[off+1] = byte(length) - // Setting the bit value for the type in the right octet - msg[off+1+int(length)] |= byte(1 << (7 - t%8)) - lastwindow, lastlength = window, length - } - off += int(lastlength) + 2 - return off, nil -} - -func unpackDataSVCB(msg []byte, off int) ([]SVCBKeyValue, int, error) { - var xs []SVCBKeyValue - var code uint16 - var length uint16 - var err error - for off < len(msg) { - code, off, err = unpackUint16(msg, off) - if err != nil { - return nil, len(msg), &Error{err: "overflow unpacking SVCB"} - } - length, off, err = unpackUint16(msg, off) - if err != nil || off+int(length) > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking SVCB"} - } - e := makeSVCBKeyValue(SVCBKey(code)) - if e == nil { - return nil, len(msg), &Error{err: "bad SVCB key"} - } - if err := e.unpack(msg[off : off+int(length)]); err != nil { - return nil, len(msg), err - } - if len(xs) > 0 && e.Key() <= xs[len(xs)-1].Key() { - return nil, len(msg), &Error{err: "SVCB keys not in strictly increasing order"} - } - xs = append(xs, e) - off += int(length) - } - return xs, off, nil -} - -func packDataSVCB(pairs []SVCBKeyValue, msg []byte, off int) (int, error) { - pairs = append([]SVCBKeyValue(nil), pairs...) - sort.Slice(pairs, func(i, j int) bool { - return pairs[i].Key() < pairs[j].Key() - }) - prev := svcb_RESERVED - for _, el := range pairs { - if el.Key() == prev { - return len(msg), &Error{err: "repeated SVCB keys are not allowed"} - } - prev = el.Key() - packed, err := el.pack() - if err != nil { - return len(msg), err - } - off, err = packUint16(uint16(el.Key()), msg, off) - if err != nil { - return len(msg), &Error{err: "overflow packing SVCB"} - } - off, err = packUint16(uint16(len(packed)), msg, off) - if err != nil || off+len(packed) > len(msg) { - return len(msg), &Error{err: "overflow packing SVCB"} - } - copy(msg[off:off+len(packed)], packed) - off += len(packed) - } - return off, nil -} - -func unpackDataDomainNames(msg []byte, off, end int) ([]string, int, error) { - var ( - servers []string - s string - err error - ) - if end > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking domain names"} - } - for off < end { - s, off, err = UnpackDomainName(msg, off) - if err != nil { - return servers, len(msg), err - } - servers = append(servers, s) - } - return servers, off, nil -} - -func packDataDomainNames(names []string, msg []byte, off int, compression compressionMap, compress bool) (int, error) { - var err error - for _, name := range names { - off, err = packDomainName(name, msg, off, compression, compress) - if err != nil { - return len(msg), err - } - } - return off, nil -} - -func packDataApl(data []APLPrefix, msg []byte, off int) (int, error) { - var err error - for i := range data { - off, err = packDataAplPrefix(&data[i], msg, off) - if err != nil { - return len(msg), err - } - } - return off, nil -} - -func packDataAplPrefix(p *APLPrefix, msg []byte, off int) (int, error) { - if len(p.Network.IP) != len(p.Network.Mask) { - return len(msg), &Error{err: "address and mask lengths don't match"} - } - - var err error - prefix, _ := p.Network.Mask.Size() - addr := p.Network.IP.Mask(p.Network.Mask)[:(prefix+7)/8] - - switch len(p.Network.IP) { - case net.IPv4len: - off, err = packUint16(1, msg, off) - case net.IPv6len: - off, err = packUint16(2, msg, off) - default: - err = &Error{err: "unrecognized address family"} - } - if err != nil { - return len(msg), err - } - - off, err = packUint8(uint8(prefix), msg, off) - if err != nil { - return len(msg), err - } - - var n uint8 - if p.Negation { - n = 0x80 - } - - // trim trailing zero bytes as specified in RFC3123 Sections 4.1 and 4.2. - i := len(addr) - 1 - for ; i >= 0 && addr[i] == 0; i-- { - } - addr = addr[:i+1] - - adflen := uint8(len(addr)) & 0x7f - off, err = packUint8(n|adflen, msg, off) - if err != nil { - return len(msg), err - } - - if off+len(addr) > len(msg) { - return len(msg), &Error{err: "overflow packing APL prefix"} - } - off += copy(msg[off:], addr) - - return off, nil -} - -func unpackDataApl(msg []byte, off int) ([]APLPrefix, int, error) { - var result []APLPrefix - for off < len(msg) { - prefix, end, err := unpackDataAplPrefix(msg, off) - if err != nil { - return nil, len(msg), err - } - off = end - result = append(result, prefix) - } - return result, off, nil -} - -func unpackDataAplPrefix(msg []byte, off int) (APLPrefix, int, error) { - family, off, err := unpackUint16(msg, off) - if err != nil { - return APLPrefix{}, len(msg), &Error{err: "overflow unpacking APL prefix"} - } - prefix, off, err := unpackUint8(msg, off) - if err != nil { - return APLPrefix{}, len(msg), &Error{err: "overflow unpacking APL prefix"} - } - nlen, off, err := unpackUint8(msg, off) - if err != nil { - return APLPrefix{}, len(msg), &Error{err: "overflow unpacking APL prefix"} - } - - var ip []byte - switch family { - case 1: - ip = make([]byte, net.IPv4len) - case 2: - ip = make([]byte, net.IPv6len) - default: - return APLPrefix{}, len(msg), &Error{err: "unrecognized APL address family"} - } - if int(prefix) > 8*len(ip) { - return APLPrefix{}, len(msg), &Error{err: "APL prefix too long"} - } - afdlen := int(nlen & 0x7f) - if afdlen > len(ip) { - return APLPrefix{}, len(msg), &Error{err: "APL length too long"} - } - if off+afdlen > len(msg) { - return APLPrefix{}, len(msg), &Error{err: "overflow unpacking APL address"} - } - off += copy(ip, msg[off:off+afdlen]) - if afdlen > 0 { - last := ip[afdlen-1] - if last == 0 { - return APLPrefix{}, len(msg), &Error{err: "extra APL address bits"} - } - } - ipnet := net.IPNet{ - IP: ip, - Mask: net.CIDRMask(int(prefix), 8*len(ip)), - } - network := ipnet.IP.Mask(ipnet.Mask) - if !network.Equal(ipnet.IP) { - return APLPrefix{}, len(msg), &Error{err: "invalid APL address length"} - } - - return APLPrefix{ - Negation: (nlen & 0x80) != 0, - Network: ipnet, - }, off, nil -} diff --git a/vendor/github.com/miekg/dns/msg_truncate.go b/vendor/github.com/miekg/dns/msg_truncate.go deleted file mode 100644 index 2ddc9a7da8..0000000000 --- a/vendor/github.com/miekg/dns/msg_truncate.go +++ /dev/null @@ -1,117 +0,0 @@ -package dns - -// Truncate ensures the reply message will fit into the requested buffer -// size by removing records that exceed the requested size. -// -// It will first check if the reply fits without compression and then with -// compression. If it won't fit with compression, Truncate then walks the -// record adding as many records as possible without exceeding the -// requested buffer size. -// -// If the message fits within the requested size without compression, -// Truncate will set the message's Compress attribute to false. It is -// the caller's responsibility to set it back to true if they wish to -// compress the payload regardless of size. -// -// The TC bit will be set if any records were excluded from the message. -// If the TC bit is already set on the message it will be retained. -// TC indicates that the client should retry over TCP. -// -// According to RFC 2181, the TC bit should only be set if not all of the -// "required" RRs can be included in the response. Unfortunately, we have -// no way of knowing which RRs are required so we set the TC bit if any RR -// had to be omitted from the response. -// -// The appropriate buffer size can be retrieved from the requests OPT -// record, if present, and is transport specific otherwise. dns.MinMsgSize -// should be used for UDP requests without an OPT record, and -// dns.MaxMsgSize for TCP requests without an OPT record. -func (dns *Msg) Truncate(size int) { - if dns.IsTsig() != nil { - // To simplify this implementation, we don't perform - // truncation on responses with a TSIG record. - return - } - - // RFC 6891 mandates that the payload size in an OPT record - // less than 512 (MinMsgSize) bytes must be treated as equal to 512 bytes. - // - // For ease of use, we impose that restriction here. - if size < MinMsgSize { - size = MinMsgSize - } - - l := msgLenWithCompressionMap(dns, nil) // uncompressed length - if l <= size { - // Don't waste effort compressing this message. - dns.Compress = false - return - } - - dns.Compress = true - - edns0 := dns.popEdns0() - if edns0 != nil { - // Account for the OPT record that gets added at the end, - // by subtracting that length from our budget. - // - // The EDNS(0) OPT record must have the root domain and - // it's length is thus unaffected by compression. - size -= Len(edns0) - } - - compression := make(map[string]struct{}) - - l = headerSize - for _, r := range dns.Question { - l += r.len(l, compression) - } - - var numAnswer int - if l < size { - l, numAnswer = truncateLoop(dns.Answer, size, l, compression) - } - - var numNS int - if l < size { - l, numNS = truncateLoop(dns.Ns, size, l, compression) - } - - var numExtra int - if l < size { - _, numExtra = truncateLoop(dns.Extra, size, l, compression) - } - - // See the function documentation for when we set this. - dns.Truncated = dns.Truncated || len(dns.Answer) > numAnswer || - len(dns.Ns) > numNS || len(dns.Extra) > numExtra - - dns.Answer = dns.Answer[:numAnswer] - dns.Ns = dns.Ns[:numNS] - dns.Extra = dns.Extra[:numExtra] - - if edns0 != nil { - // Add the OPT record back onto the additional section. - dns.Extra = append(dns.Extra, edns0) - } -} - -func truncateLoop(rrs []RR, size, l int, compression map[string]struct{}) (int, int) { - for i, r := range rrs { - if r == nil { - continue - } - - l += r.len(l, compression) - if l > size { - // Return size, rather than l prior to this record, - // to prevent any further records being added. - return size, i - } - if l == size { - return l, i + 1 - } - } - - return l, len(rrs) -} diff --git a/vendor/github.com/miekg/dns/nsecx.go b/vendor/github.com/miekg/dns/nsecx.go deleted file mode 100644 index f8826817b3..0000000000 --- a/vendor/github.com/miekg/dns/nsecx.go +++ /dev/null @@ -1,95 +0,0 @@ -package dns - -import ( - "crypto/sha1" - "encoding/hex" - "strings" -) - -// HashName hashes a string (label) according to RFC 5155. It returns the hashed string in uppercase. -func HashName(label string, ha uint8, iter uint16, salt string) string { - if ha != SHA1 { - return "" - } - - wireSalt := make([]byte, hex.DecodedLen(len(salt))) - n, err := packStringHex(salt, wireSalt, 0) - if err != nil { - return "" - } - wireSalt = wireSalt[:n] - - name := make([]byte, 255) - off, err := PackDomainName(strings.ToLower(label), name, 0, nil, false) - if err != nil { - return "" - } - name = name[:off] - - s := sha1.New() - // k = 0 - s.Write(name) - s.Write(wireSalt) - nsec3 := s.Sum(nil) - - // k > 0 - for k := uint16(0); k < iter; k++ { - s.Reset() - s.Write(nsec3) - s.Write(wireSalt) - nsec3 = s.Sum(nsec3[:0]) - } - - return toBase32(nsec3) -} - -// Cover returns true if a name is covered by the NSEC3 record. -func (rr *NSEC3) Cover(name string) bool { - nameHash := HashName(name, rr.Hash, rr.Iterations, rr.Salt) - owner := strings.ToUpper(rr.Hdr.Name) - labelIndices := Split(owner) - if len(labelIndices) < 2 { - return false - } - ownerHash := owner[:labelIndices[1]-1] - ownerZone := owner[labelIndices[1]:] - if !IsSubDomain(ownerZone, strings.ToUpper(name)) { // name is outside owner zone - return false - } - - nextHash := rr.NextDomain - - // if empty interval found, try cover wildcard hashes so nameHash shouldn't match with ownerHash - if ownerHash == nextHash && nameHash != ownerHash { // empty interval - return true - } - if ownerHash > nextHash { // end of zone - if nameHash > ownerHash { // covered since there is nothing after ownerHash - return true - } - return nameHash < nextHash // if nameHash is before beginning of zone it is covered - } - if nameHash < ownerHash { // nameHash is before ownerHash, not covered - return false - } - return nameHash < nextHash // if nameHash is before nextHash is it covered (between ownerHash and nextHash) -} - -// Match returns true if a name matches the NSEC3 record -func (rr *NSEC3) Match(name string) bool { - nameHash := HashName(name, rr.Hash, rr.Iterations, rr.Salt) - owner := strings.ToUpper(rr.Hdr.Name) - labelIndices := Split(owner) - if len(labelIndices) < 2 { - return false - } - ownerHash := owner[:labelIndices[1]-1] - ownerZone := owner[labelIndices[1]:] - if !IsSubDomain(ownerZone, strings.ToUpper(name)) { // name is outside owner zone - return false - } - if ownerHash == nameHash { - return true - } - return false -} diff --git a/vendor/github.com/miekg/dns/privaterr.go b/vendor/github.com/miekg/dns/privaterr.go deleted file mode 100644 index d256b652ea..0000000000 --- a/vendor/github.com/miekg/dns/privaterr.go +++ /dev/null @@ -1,113 +0,0 @@ -package dns - -import "strings" - -// PrivateRdata is an interface used for implementing "Private Use" RR types, see -// RFC 6895. This allows one to experiment with new RR types, without requesting an -// official type code. Also see dns.PrivateHandle and dns.PrivateHandleRemove. -type PrivateRdata interface { - // String returns the text presentation of the Rdata of the Private RR. - String() string - // Parse parses the Rdata of the private RR. - Parse([]string) error - // Pack is used when packing a private RR into a buffer. - Pack([]byte) (int, error) - // Unpack is used when unpacking a private RR from a buffer. - Unpack([]byte) (int, error) - // Copy copies the Rdata into the PrivateRdata argument. - Copy(PrivateRdata) error - // Len returns the length in octets of the Rdata. - Len() int -} - -// PrivateRR represents an RR that uses a PrivateRdata user-defined type. -// It mocks normal RRs and implements dns.RR interface. -type PrivateRR struct { - Hdr RR_Header - Data PrivateRdata - - generator func() PrivateRdata // for copy -} - -// Header return the RR header of r. -func (r *PrivateRR) Header() *RR_Header { return &r.Hdr } - -func (r *PrivateRR) String() string { return r.Hdr.String() + r.Data.String() } - -// Private len and copy parts to satisfy RR interface. -func (r *PrivateRR) len(off int, compression map[string]struct{}) int { - l := r.Hdr.len(off, compression) - l += r.Data.Len() - return l -} - -func (r *PrivateRR) copy() RR { - // make new RR like this: - rr := &PrivateRR{r.Hdr, r.generator(), r.generator} - - if err := r.Data.Copy(rr.Data); err != nil { - panic("dns: got value that could not be used to copy Private rdata: " + err.Error()) - } - - return rr -} - -func (r *PrivateRR) pack(msg []byte, off int, compression compressionMap, compress bool) (int, error) { - n, err := r.Data.Pack(msg[off:]) - if err != nil { - return len(msg), err - } - off += n - return off, nil -} - -func (r *PrivateRR) unpack(msg []byte, off int) (int, error) { - off1, err := r.Data.Unpack(msg[off:]) - off += off1 - return off, err -} - -func (r *PrivateRR) parse(c *zlexer, origin string) *ParseError { - var l lex - text := make([]string, 0, 2) // could be 0..N elements, median is probably 1 -Fetch: - for { - // TODO(miek): we could also be returning _QUOTE, this might or might not - // be an issue (basically parsing TXT becomes hard) - switch l, _ = c.Next(); l.value { - case zNewline, zEOF: - break Fetch - case zString: - text = append(text, l.token) - } - } - - err := r.Data.Parse(text) - if err != nil { - return &ParseError{"", err.Error(), l} - } - - return nil -} - -func (r *PrivateRR) isDuplicate(r2 RR) bool { return false } - -// PrivateHandle registers a private resource record type. It requires -// string and numeric representation of private RR type and generator function as argument. -func PrivateHandle(rtypestr string, rtype uint16, generator func() PrivateRdata) { - rtypestr = strings.ToUpper(rtypestr) - - TypeToRR[rtype] = func() RR { return &PrivateRR{RR_Header{}, generator(), generator} } - TypeToString[rtype] = rtypestr - StringToType[rtypestr] = rtype -} - -// PrivateHandleRemove removes definitions required to support private RR type. -func PrivateHandleRemove(rtype uint16) { - rtypestr, ok := TypeToString[rtype] - if ok { - delete(TypeToRR, rtype) - delete(TypeToString, rtype) - delete(StringToType, rtypestr) - } -} diff --git a/vendor/github.com/miekg/dns/reverse.go b/vendor/github.com/miekg/dns/reverse.go deleted file mode 100644 index 28151af835..0000000000 --- a/vendor/github.com/miekg/dns/reverse.go +++ /dev/null @@ -1,52 +0,0 @@ -package dns - -// StringToType is the reverse of TypeToString, needed for string parsing. -var StringToType = reverseInt16(TypeToString) - -// StringToClass is the reverse of ClassToString, needed for string parsing. -var StringToClass = reverseInt16(ClassToString) - -// StringToOpcode is a map of opcodes to strings. -var StringToOpcode = reverseInt(OpcodeToString) - -// StringToRcode is a map of rcodes to strings. -var StringToRcode = reverseInt(RcodeToString) - -func init() { - // Preserve previous NOTIMP typo, see github.com/miekg/dns/issues/733. - StringToRcode["NOTIMPL"] = RcodeNotImplemented -} - -// StringToAlgorithm is the reverse of AlgorithmToString. -var StringToAlgorithm = reverseInt8(AlgorithmToString) - -// StringToHash is a map of names to hash IDs. -var StringToHash = reverseInt8(HashToString) - -// StringToCertType is the reverseof CertTypeToString. -var StringToCertType = reverseInt16(CertTypeToString) - -// Reverse a map -func reverseInt8(m map[uint8]string) map[string]uint8 { - n := make(map[string]uint8, len(m)) - for u, s := range m { - n[s] = u - } - return n -} - -func reverseInt16(m map[uint16]string) map[string]uint16 { - n := make(map[string]uint16, len(m)) - for u, s := range m { - n[s] = u - } - return n -} - -func reverseInt(m map[int]string) map[string]int { - n := make(map[string]int, len(m)) - for u, s := range m { - n[s] = u - } - return n -} diff --git a/vendor/github.com/miekg/dns/sanitize.go b/vendor/github.com/miekg/dns/sanitize.go deleted file mode 100644 index a638e862e3..0000000000 --- a/vendor/github.com/miekg/dns/sanitize.go +++ /dev/null @@ -1,86 +0,0 @@ -package dns - -// Dedup removes identical RRs from rrs. It preserves the original ordering. -// The lowest TTL of any duplicates is used in the remaining one. Dedup modifies -// rrs. -// m is used to store the RRs temporary. If it is nil a new map will be allocated. -func Dedup(rrs []RR, m map[string]RR) []RR { - - if m == nil { - m = make(map[string]RR) - } - // Save the keys, so we don't have to call normalizedString twice. - keys := make([]*string, 0, len(rrs)) - - for _, r := range rrs { - key := normalizedString(r) - keys = append(keys, &key) - if mr, ok := m[key]; ok { - // Shortest TTL wins. - rh, mrh := r.Header(), mr.Header() - if mrh.Ttl > rh.Ttl { - mrh.Ttl = rh.Ttl - } - continue - } - - m[key] = r - } - // If the length of the result map equals the amount of RRs we got, - // it means they were all different. We can then just return the original rrset. - if len(m) == len(rrs) { - return rrs - } - - j := 0 - for i, r := range rrs { - // If keys[i] lives in the map, we should copy and remove it. - if _, ok := m[*keys[i]]; ok { - delete(m, *keys[i]) - rrs[j] = r - j++ - } - - if len(m) == 0 { - break - } - } - - return rrs[:j] -} - -// normalizedString returns a normalized string from r. The TTL -// is removed and the domain name is lowercased. We go from this: -// DomainName<TAB>TTL<TAB>CLASS<TAB>TYPE<TAB>RDATA to: -// lowercasename<TAB>CLASS<TAB>TYPE... -func normalizedString(r RR) string { - // A string Go DNS makes has: domainname<TAB>TTL<TAB>... - b := []byte(r.String()) - - // find the first non-escaped tab, then another, so we capture where the TTL lives. - esc := false - ttlStart, ttlEnd := 0, 0 - for i := 0; i < len(b) && ttlEnd == 0; i++ { - switch { - case b[i] == '\\': - esc = !esc - case b[i] == '\t' && !esc: - if ttlStart == 0 { - ttlStart = i - continue - } - if ttlEnd == 0 { - ttlEnd = i - } - case b[i] >= 'A' && b[i] <= 'Z' && !esc: - b[i] += 32 - default: - esc = false - } - } - - // remove TTL. - copy(b[ttlStart:], b[ttlEnd:]) - cut := ttlEnd - ttlStart - return string(b[:len(b)-cut]) -} diff --git a/vendor/github.com/miekg/dns/scan.go b/vendor/github.com/miekg/dns/scan.go deleted file mode 100644 index 57be988277..0000000000 --- a/vendor/github.com/miekg/dns/scan.go +++ /dev/null @@ -1,1368 +0,0 @@ -package dns - -import ( - "bufio" - "fmt" - "io" - "os" - "path/filepath" - "strconv" - "strings" -) - -const maxTok = 2048 // Largest token we can return. - -// The maximum depth of $INCLUDE directives supported by the -// ZoneParser API. -const maxIncludeDepth = 7 - -// Tokinize a RFC 1035 zone file. The tokenizer will normalize it: -// * Add ownernames if they are left blank; -// * Suppress sequences of spaces; -// * Make each RR fit on one line (_NEWLINE is send as last) -// * Handle comments: ; -// * Handle braces - anywhere. -const ( - // Zonefile - zEOF = iota - zString - zBlank - zQuote - zNewline - zRrtpe - zOwner - zClass - zDirOrigin // $ORIGIN - zDirTTL // $TTL - zDirInclude // $INCLUDE - zDirGenerate // $GENERATE - - // Privatekey file - zValue - zKey - - zExpectOwnerDir // Ownername - zExpectOwnerBl // Whitespace after the ownername - zExpectAny // Expect rrtype, ttl or class - zExpectAnyNoClass // Expect rrtype or ttl - zExpectAnyNoClassBl // The whitespace after _EXPECT_ANY_NOCLASS - zExpectAnyNoTTL // Expect rrtype or class - zExpectAnyNoTTLBl // Whitespace after _EXPECT_ANY_NOTTL - zExpectRrtype // Expect rrtype - zExpectRrtypeBl // Whitespace BEFORE rrtype - zExpectRdata // The first element of the rdata - zExpectDirTTLBl // Space after directive $TTL - zExpectDirTTL // Directive $TTL - zExpectDirOriginBl // Space after directive $ORIGIN - zExpectDirOrigin // Directive $ORIGIN - zExpectDirIncludeBl // Space after directive $INCLUDE - zExpectDirInclude // Directive $INCLUDE - zExpectDirGenerate // Directive $GENERATE - zExpectDirGenerateBl // Space after directive $GENERATE -) - -// ParseError is a parsing error. It contains the parse error and the location in the io.Reader -// where the error occurred. -type ParseError struct { - file string - err string - lex lex -} - -func (e *ParseError) Error() (s string) { - if e.file != "" { - s = e.file + ": " - } - s += "dns: " + e.err + ": " + strconv.QuoteToASCII(e.lex.token) + " at line: " + - strconv.Itoa(e.lex.line) + ":" + strconv.Itoa(e.lex.column) - return -} - -type lex struct { - token string // text of the token - err bool // when true, token text has lexer error - value uint8 // value: zString, _BLANK, etc. - torc uint16 // type or class as parsed in the lexer, we only need to look this up in the grammar - line int // line in the file - column int // column in the file -} - -// ttlState describes the state necessary to fill in an omitted RR TTL -type ttlState struct { - ttl uint32 // ttl is the current default TTL - isByDirective bool // isByDirective indicates whether ttl was set by a $TTL directive -} - -// NewRR reads the RR contained in the string s. Only the first RR is returned. -// If s contains no records, NewRR will return nil with no error. -// -// The class defaults to IN and TTL defaults to 3600. The full zone file syntax -// like $TTL, $ORIGIN, etc. is supported. All fields of the returned RR are -// set, except RR.Header().Rdlength which is set to 0. -func NewRR(s string) (RR, error) { - if len(s) > 0 && s[len(s)-1] != '\n' { // We need a closing newline - return ReadRR(strings.NewReader(s+"\n"), "") - } - return ReadRR(strings.NewReader(s), "") -} - -// ReadRR reads the RR contained in r. -// -// The string file is used in error reporting and to resolve relative -// $INCLUDE directives. -// -// See NewRR for more documentation. -func ReadRR(r io.Reader, file string) (RR, error) { - zp := NewZoneParser(r, ".", file) - zp.SetDefaultTTL(defaultTtl) - zp.SetIncludeAllowed(true) - rr, _ := zp.Next() - return rr, zp.Err() -} - -// ZoneParser is a parser for an RFC 1035 style zonefile. -// -// Each parsed RR in the zone is returned sequentially from Next. An -// optional comment can be retrieved with Comment. -// -// The directives $INCLUDE, $ORIGIN, $TTL and $GENERATE are all -// supported. Although $INCLUDE is disabled by default. -// Note that $GENERATE's range support up to a maximum of 65535 steps. -// -// Basic usage pattern when reading from a string (z) containing the -// zone data: -// -// zp := NewZoneParser(strings.NewReader(z), "", "") -// -// for rr, ok := zp.Next(); ok; rr, ok = zp.Next() { -// // Do something with rr -// } -// -// if err := zp.Err(); err != nil { -// // log.Println(err) -// } -// -// Comments specified after an RR (and on the same line!) are -// returned too: -// -// foo. IN A 10.0.0.1 ; this is a comment -// -// The text "; this is comment" is returned from Comment. Comments inside -// the RR are returned concatenated along with the RR. Comments on a line -// by themselves are discarded. -// -// Callers should not assume all returned data in an Resource Record is -// syntactically correct, e.g. illegal base64 in RRSIGs will be returned as-is. -type ZoneParser struct { - c *zlexer - - parseErr *ParseError - - origin string - file string - - defttl *ttlState - - h RR_Header - - // sub is used to parse $INCLUDE files and $GENERATE directives. - // Next, by calling subNext, forwards the resulting RRs from this - // sub parser to the calling code. - sub *ZoneParser - osFile *os.File - - includeDepth uint8 - - includeAllowed bool - generateDisallowed bool -} - -// NewZoneParser returns an RFC 1035 style zonefile parser that reads -// from r. -// -// The string file is used in error reporting and to resolve relative -// $INCLUDE directives. The string origin is used as the initial -// origin, as if the file would start with an $ORIGIN directive. -func NewZoneParser(r io.Reader, origin, file string) *ZoneParser { - var pe *ParseError - if origin != "" { - origin = Fqdn(origin) - if _, ok := IsDomainName(origin); !ok { - pe = &ParseError{file, "bad initial origin name", lex{}} - } - } - - return &ZoneParser{ - c: newZLexer(r), - - parseErr: pe, - - origin: origin, - file: file, - } -} - -// SetDefaultTTL sets the parsers default TTL to ttl. -func (zp *ZoneParser) SetDefaultTTL(ttl uint32) { - zp.defttl = &ttlState{ttl, false} -} - -// SetIncludeAllowed controls whether $INCLUDE directives are -// allowed. $INCLUDE directives are not supported by default. -// -// The $INCLUDE directive will open and read from a user controlled -// file on the system. Even if the file is not a valid zonefile, the -// contents of the file may be revealed in error messages, such as: -// -// /etc/passwd: dns: not a TTL: "root:x:0:0:root:/root:/bin/bash" at line: 1:31 -// /etc/shadow: dns: not a TTL: "root:$6$<redacted>::0:99999:7:::" at line: 1:125 -func (zp *ZoneParser) SetIncludeAllowed(v bool) { - zp.includeAllowed = v -} - -// Err returns the first non-EOF error that was encountered by the -// ZoneParser. -func (zp *ZoneParser) Err() error { - if zp.parseErr != nil { - return zp.parseErr - } - - if zp.sub != nil { - if err := zp.sub.Err(); err != nil { - return err - } - } - - return zp.c.Err() -} - -func (zp *ZoneParser) setParseError(err string, l lex) (RR, bool) { - zp.parseErr = &ParseError{zp.file, err, l} - return nil, false -} - -// Comment returns an optional text comment that occurred alongside -// the RR. -func (zp *ZoneParser) Comment() string { - if zp.parseErr != nil { - return "" - } - - if zp.sub != nil { - return zp.sub.Comment() - } - - return zp.c.Comment() -} - -func (zp *ZoneParser) subNext() (RR, bool) { - if rr, ok := zp.sub.Next(); ok { - return rr, true - } - - if zp.sub.osFile != nil { - zp.sub.osFile.Close() - zp.sub.osFile = nil - } - - if zp.sub.Err() != nil { - // We have errors to surface. - return nil, false - } - - zp.sub = nil - return zp.Next() -} - -// Next advances the parser to the next RR in the zonefile and -// returns the (RR, true). It will return (nil, false) when the -// parsing stops, either by reaching the end of the input or an -// error. After Next returns (nil, false), the Err method will return -// any error that occurred during parsing. -func (zp *ZoneParser) Next() (RR, bool) { - if zp.parseErr != nil { - return nil, false - } - if zp.sub != nil { - return zp.subNext() - } - - // 6 possible beginnings of a line (_ is a space): - // - // 0. zRRTYPE -> all omitted until the rrtype - // 1. zOwner _ zRrtype -> class/ttl omitted - // 2. zOwner _ zString _ zRrtype -> class omitted - // 3. zOwner _ zString _ zClass _ zRrtype -> ttl/class - // 4. zOwner _ zClass _ zRrtype -> ttl omitted - // 5. zOwner _ zClass _ zString _ zRrtype -> class/ttl (reversed) - // - // After detecting these, we know the zRrtype so we can jump to functions - // handling the rdata for each of these types. - - st := zExpectOwnerDir // initial state - h := &zp.h - - for l, ok := zp.c.Next(); ok; l, ok = zp.c.Next() { - // zlexer spotted an error already - if l.err { - return zp.setParseError(l.token, l) - } - - switch st { - case zExpectOwnerDir: - // We can also expect a directive, like $TTL or $ORIGIN - if zp.defttl != nil { - h.Ttl = zp.defttl.ttl - } - - h.Class = ClassINET - - switch l.value { - case zNewline: - st = zExpectOwnerDir - case zOwner: - name, ok := toAbsoluteName(l.token, zp.origin) - if !ok { - return zp.setParseError("bad owner name", l) - } - - h.Name = name - - st = zExpectOwnerBl - case zDirTTL: - st = zExpectDirTTLBl - case zDirOrigin: - st = zExpectDirOriginBl - case zDirInclude: - st = zExpectDirIncludeBl - case zDirGenerate: - st = zExpectDirGenerateBl - case zRrtpe: - h.Rrtype = l.torc - - st = zExpectRdata - case zClass: - h.Class = l.torc - - st = zExpectAnyNoClassBl - case zBlank: - // Discard, can happen when there is nothing on the - // line except the RR type - case zString: - ttl, ok := stringToTTL(l.token) - if !ok { - return zp.setParseError("not a TTL", l) - } - - h.Ttl = ttl - - if zp.defttl == nil || !zp.defttl.isByDirective { - zp.defttl = &ttlState{ttl, false} - } - - st = zExpectAnyNoTTLBl - default: - return zp.setParseError("syntax error at beginning", l) - } - case zExpectDirIncludeBl: - if l.value != zBlank { - return zp.setParseError("no blank after $INCLUDE-directive", l) - } - - st = zExpectDirInclude - case zExpectDirInclude: - if l.value != zString { - return zp.setParseError("expecting $INCLUDE value, not this...", l) - } - - neworigin := zp.origin // There may be optionally a new origin set after the filename, if not use current one - switch l, _ := zp.c.Next(); l.value { - case zBlank: - l, _ := zp.c.Next() - if l.value == zString { - name, ok := toAbsoluteName(l.token, zp.origin) - if !ok { - return zp.setParseError("bad origin name", l) - } - - neworigin = name - } - case zNewline, zEOF: - // Ok - default: - return zp.setParseError("garbage after $INCLUDE", l) - } - - if !zp.includeAllowed { - return zp.setParseError("$INCLUDE directive not allowed", l) - } - if zp.includeDepth >= maxIncludeDepth { - return zp.setParseError("too deeply nested $INCLUDE", l) - } - - // Start with the new file - includePath := l.token - if !filepath.IsAbs(includePath) { - includePath = filepath.Join(filepath.Dir(zp.file), includePath) - } - - r1, e1 := os.Open(includePath) - if e1 != nil { - var as string - if !filepath.IsAbs(l.token) { - as = fmt.Sprintf(" as `%s'", includePath) - } - - msg := fmt.Sprintf("failed to open `%s'%s: %v", l.token, as, e1) - return zp.setParseError(msg, l) - } - - zp.sub = NewZoneParser(r1, neworigin, includePath) - zp.sub.defttl, zp.sub.includeDepth, zp.sub.osFile = zp.defttl, zp.includeDepth+1, r1 - zp.sub.SetIncludeAllowed(true) - return zp.subNext() - case zExpectDirTTLBl: - if l.value != zBlank { - return zp.setParseError("no blank after $TTL-directive", l) - } - - st = zExpectDirTTL - case zExpectDirTTL: - if l.value != zString { - return zp.setParseError("expecting $TTL value, not this...", l) - } - - if err := slurpRemainder(zp.c); err != nil { - return zp.setParseError(err.err, err.lex) - } - - ttl, ok := stringToTTL(l.token) - if !ok { - return zp.setParseError("expecting $TTL value, not this...", l) - } - - zp.defttl = &ttlState{ttl, true} - - st = zExpectOwnerDir - case zExpectDirOriginBl: - if l.value != zBlank { - return zp.setParseError("no blank after $ORIGIN-directive", l) - } - - st = zExpectDirOrigin - case zExpectDirOrigin: - if l.value != zString { - return zp.setParseError("expecting $ORIGIN value, not this...", l) - } - - if err := slurpRemainder(zp.c); err != nil { - return zp.setParseError(err.err, err.lex) - } - - name, ok := toAbsoluteName(l.token, zp.origin) - if !ok { - return zp.setParseError("bad origin name", l) - } - - zp.origin = name - - st = zExpectOwnerDir - case zExpectDirGenerateBl: - if l.value != zBlank { - return zp.setParseError("no blank after $GENERATE-directive", l) - } - - st = zExpectDirGenerate - case zExpectDirGenerate: - if zp.generateDisallowed { - return zp.setParseError("nested $GENERATE directive not allowed", l) - } - if l.value != zString { - return zp.setParseError("expecting $GENERATE value, not this...", l) - } - - return zp.generate(l) - case zExpectOwnerBl: - if l.value != zBlank { - return zp.setParseError("no blank after owner", l) - } - - st = zExpectAny - case zExpectAny: - switch l.value { - case zRrtpe: - if zp.defttl == nil { - return zp.setParseError("missing TTL with no previous value", l) - } - - h.Rrtype = l.torc - - st = zExpectRdata - case zClass: - h.Class = l.torc - - st = zExpectAnyNoClassBl - case zString: - ttl, ok := stringToTTL(l.token) - if !ok { - return zp.setParseError("not a TTL", l) - } - - h.Ttl = ttl - - if zp.defttl == nil || !zp.defttl.isByDirective { - zp.defttl = &ttlState{ttl, false} - } - - st = zExpectAnyNoTTLBl - default: - return zp.setParseError("expecting RR type, TTL or class, not this...", l) - } - case zExpectAnyNoClassBl: - if l.value != zBlank { - return zp.setParseError("no blank before class", l) - } - - st = zExpectAnyNoClass - case zExpectAnyNoTTLBl: - if l.value != zBlank { - return zp.setParseError("no blank before TTL", l) - } - - st = zExpectAnyNoTTL - case zExpectAnyNoTTL: - switch l.value { - case zClass: - h.Class = l.torc - - st = zExpectRrtypeBl - case zRrtpe: - h.Rrtype = l.torc - - st = zExpectRdata - default: - return zp.setParseError("expecting RR type or class, not this...", l) - } - case zExpectAnyNoClass: - switch l.value { - case zString: - ttl, ok := stringToTTL(l.token) - if !ok { - return zp.setParseError("not a TTL", l) - } - - h.Ttl = ttl - - if zp.defttl == nil || !zp.defttl.isByDirective { - zp.defttl = &ttlState{ttl, false} - } - - st = zExpectRrtypeBl - case zRrtpe: - h.Rrtype = l.torc - - st = zExpectRdata - default: - return zp.setParseError("expecting RR type or TTL, not this...", l) - } - case zExpectRrtypeBl: - if l.value != zBlank { - return zp.setParseError("no blank before RR type", l) - } - - st = zExpectRrtype - case zExpectRrtype: - if l.value != zRrtpe { - return zp.setParseError("unknown RR type", l) - } - - h.Rrtype = l.torc - - st = zExpectRdata - case zExpectRdata: - var ( - rr RR - parseAsRFC3597 bool - ) - if newFn, ok := TypeToRR[h.Rrtype]; ok { - rr = newFn() - *rr.Header() = *h - - // We may be parsing a known RR type using the RFC3597 format. - // If so, we handle that here in a generic way. - // - // This is also true for PrivateRR types which will have the - // RFC3597 parsing done for them and the Unpack method called - // to populate the RR instead of simply deferring to Parse. - if zp.c.Peek().token == "\\#" { - parseAsRFC3597 = true - } - } else { - rr = &RFC3597{Hdr: *h} - } - - _, isPrivate := rr.(*PrivateRR) - if !isPrivate && zp.c.Peek().token == "" { - // This is a dynamic update rr. - - // TODO(tmthrgd): Previously slurpRemainder was only called - // for certain RR types, which may have been important. - if err := slurpRemainder(zp.c); err != nil { - return zp.setParseError(err.err, err.lex) - } - - return rr, true - } else if l.value == zNewline { - return zp.setParseError("unexpected newline", l) - } - - parseAsRR := rr - if parseAsRFC3597 { - parseAsRR = &RFC3597{Hdr: *h} - } - - if err := parseAsRR.parse(zp.c, zp.origin); err != nil { - // err is a concrete *ParseError without the file field set. - // The setParseError call below will construct a new - // *ParseError with file set to zp.file. - - // err.lex may be nil in which case we substitute our current - // lex token. - if err.lex == (lex{}) { - return zp.setParseError(err.err, l) - } - - return zp.setParseError(err.err, err.lex) - } - - if parseAsRFC3597 { - err := parseAsRR.(*RFC3597).fromRFC3597(rr) - if err != nil { - return zp.setParseError(err.Error(), l) - } - } - - return rr, true - } - } - - // If we get here, we and the h.Rrtype is still zero, we haven't parsed anything, this - // is not an error, because an empty zone file is still a zone file. - return nil, false -} - -type zlexer struct { - br io.ByteReader - - readErr error - - line int - column int - - comBuf string - comment string - - l lex - cachedL *lex - - brace int - quote bool - space bool - commt bool - rrtype bool - owner bool - - nextL bool - - eol bool // end-of-line -} - -func newZLexer(r io.Reader) *zlexer { - br, ok := r.(io.ByteReader) - if !ok { - br = bufio.NewReaderSize(r, 1024) - } - - return &zlexer{ - br: br, - - line: 1, - - owner: true, - } -} - -func (zl *zlexer) Err() error { - if zl.readErr == io.EOF { - return nil - } - - return zl.readErr -} - -// readByte returns the next byte from the input -func (zl *zlexer) readByte() (byte, bool) { - if zl.readErr != nil { - return 0, false - } - - c, err := zl.br.ReadByte() - if err != nil { - zl.readErr = err - return 0, false - } - - // delay the newline handling until the next token is delivered, - // fixes off-by-one errors when reporting a parse error. - if zl.eol { - zl.line++ - zl.column = 0 - zl.eol = false - } - - if c == '\n' { - zl.eol = true - } else { - zl.column++ - } - - return c, true -} - -func (zl *zlexer) Peek() lex { - if zl.nextL { - return zl.l - } - - l, ok := zl.Next() - if !ok { - return l - } - - if zl.nextL { - // Cache l. Next returns zl.cachedL then zl.l. - zl.cachedL = &l - } else { - // In this case l == zl.l, so we just tell Next to return zl.l. - zl.nextL = true - } - - return l -} - -func (zl *zlexer) Next() (lex, bool) { - l := &zl.l - switch { - case zl.cachedL != nil: - l, zl.cachedL = zl.cachedL, nil - return *l, true - case zl.nextL: - zl.nextL = false - return *l, true - case l.err: - // Parsing errors should be sticky. - return lex{value: zEOF}, false - } - - var ( - str [maxTok]byte // Hold string text - com [maxTok]byte // Hold comment text - - stri int // Offset in str (0 means empty) - comi int // Offset in com (0 means empty) - - escape bool - ) - - if zl.comBuf != "" { - comi = copy(com[:], zl.comBuf) - zl.comBuf = "" - } - - zl.comment = "" - - for x, ok := zl.readByte(); ok; x, ok = zl.readByte() { - l.line, l.column = zl.line, zl.column - - if stri >= len(str) { - l.token = "token length insufficient for parsing" - l.err = true - return *l, true - } - if comi >= len(com) { - l.token = "comment length insufficient for parsing" - l.err = true - return *l, true - } - - switch x { - case ' ', '\t': - if escape || zl.quote { - // Inside quotes or escaped this is legal. - str[stri] = x - stri++ - - escape = false - break - } - - if zl.commt { - com[comi] = x - comi++ - break - } - - var retL lex - if stri == 0 { - // Space directly in the beginning, handled in the grammar - } else if zl.owner { - // If we have a string and its the first, make it an owner - l.value = zOwner - l.token = string(str[:stri]) - - // escape $... start with a \ not a $, so this will work - switch strings.ToUpper(l.token) { - case "$TTL": - l.value = zDirTTL - case "$ORIGIN": - l.value = zDirOrigin - case "$INCLUDE": - l.value = zDirInclude - case "$GENERATE": - l.value = zDirGenerate - } - - retL = *l - } else { - l.value = zString - l.token = string(str[:stri]) - - if !zl.rrtype { - tokenUpper := strings.ToUpper(l.token) - if t, ok := StringToType[tokenUpper]; ok { - l.value = zRrtpe - l.torc = t - - zl.rrtype = true - } else if strings.HasPrefix(tokenUpper, "TYPE") { - t, ok := typeToInt(l.token) - if !ok { - l.token = "unknown RR type" - l.err = true - return *l, true - } - - l.value = zRrtpe - l.torc = t - - zl.rrtype = true - } - - if t, ok := StringToClass[tokenUpper]; ok { - l.value = zClass - l.torc = t - } else if strings.HasPrefix(tokenUpper, "CLASS") { - t, ok := classToInt(l.token) - if !ok { - l.token = "unknown class" - l.err = true - return *l, true - } - - l.value = zClass - l.torc = t - } - } - - retL = *l - } - - zl.owner = false - - if !zl.space { - zl.space = true - - l.value = zBlank - l.token = " " - - if retL == (lex{}) { - return *l, true - } - - zl.nextL = true - } - - if retL != (lex{}) { - return retL, true - } - case ';': - if escape || zl.quote { - // Inside quotes or escaped this is legal. - str[stri] = x - stri++ - - escape = false - break - } - - zl.commt = true - zl.comBuf = "" - - if comi > 1 { - // A newline was previously seen inside a comment that - // was inside braces and we delayed adding it until now. - com[comi] = ' ' // convert newline to space - comi++ - if comi >= len(com) { - l.token = "comment length insufficient for parsing" - l.err = true - return *l, true - } - } - - com[comi] = ';' - comi++ - - if stri > 0 { - zl.comBuf = string(com[:comi]) - - l.value = zString - l.token = string(str[:stri]) - return *l, true - } - case '\r': - escape = false - - if zl.quote { - str[stri] = x - stri++ - } - - // discard if outside of quotes - case '\n': - escape = false - - // Escaped newline - if zl.quote { - str[stri] = x - stri++ - break - } - - if zl.commt { - // Reset a comment - zl.commt = false - zl.rrtype = false - - // If not in a brace this ends the comment AND the RR - if zl.brace == 0 { - zl.owner = true - - l.value = zNewline - l.token = "\n" - zl.comment = string(com[:comi]) - return *l, true - } - - zl.comBuf = string(com[:comi]) - break - } - - if zl.brace == 0 { - // If there is previous text, we should output it here - var retL lex - if stri != 0 { - l.value = zString - l.token = string(str[:stri]) - - if !zl.rrtype { - tokenUpper := strings.ToUpper(l.token) - if t, ok := StringToType[tokenUpper]; ok { - zl.rrtype = true - - l.value = zRrtpe - l.torc = t - } - } - - retL = *l - } - - l.value = zNewline - l.token = "\n" - - zl.comment = zl.comBuf - zl.comBuf = "" - zl.rrtype = false - zl.owner = true - - if retL != (lex{}) { - zl.nextL = true - return retL, true - } - - return *l, true - } - case '\\': - // comments do not get escaped chars, everything is copied - if zl.commt { - com[comi] = x - comi++ - break - } - - // something already escaped must be in string - if escape { - str[stri] = x - stri++ - - escape = false - break - } - - // something escaped outside of string gets added to string - str[stri] = x - stri++ - - escape = true - case '"': - if zl.commt { - com[comi] = x - comi++ - break - } - - if escape { - str[stri] = x - stri++ - - escape = false - break - } - - zl.space = false - - // send previous gathered text and the quote - var retL lex - if stri != 0 { - l.value = zString - l.token = string(str[:stri]) - - retL = *l - } - - // send quote itself as separate token - l.value = zQuote - l.token = "\"" - - zl.quote = !zl.quote - - if retL != (lex{}) { - zl.nextL = true - return retL, true - } - - return *l, true - case '(', ')': - if zl.commt { - com[comi] = x - comi++ - break - } - - if escape || zl.quote { - // Inside quotes or escaped this is legal. - str[stri] = x - stri++ - - escape = false - break - } - - switch x { - case ')': - zl.brace-- - - if zl.brace < 0 { - l.token = "extra closing brace" - l.err = true - return *l, true - } - case '(': - zl.brace++ - } - default: - escape = false - - if zl.commt { - com[comi] = x - comi++ - break - } - - str[stri] = x - stri++ - - zl.space = false - } - } - - if zl.readErr != nil && zl.readErr != io.EOF { - // Don't return any tokens after a read error occurs. - return lex{value: zEOF}, false - } - - var retL lex - if stri > 0 { - // Send remainder of str - l.value = zString - l.token = string(str[:stri]) - retL = *l - - if comi <= 0 { - return retL, true - } - } - - if comi > 0 { - // Send remainder of com - l.value = zNewline - l.token = "\n" - zl.comment = string(com[:comi]) - - if retL != (lex{}) { - zl.nextL = true - return retL, true - } - - return *l, true - } - - if zl.brace != 0 { - l.token = "unbalanced brace" - l.err = true - return *l, true - } - - return lex{value: zEOF}, false -} - -func (zl *zlexer) Comment() string { - if zl.l.err { - return "" - } - - return zl.comment -} - -// Extract the class number from CLASSxx -func classToInt(token string) (uint16, bool) { - offset := 5 - if len(token) < offset+1 { - return 0, false - } - class, err := strconv.ParseUint(token[offset:], 10, 16) - if err != nil { - return 0, false - } - return uint16(class), true -} - -// Extract the rr number from TYPExxx -func typeToInt(token string) (uint16, bool) { - offset := 4 - if len(token) < offset+1 { - return 0, false - } - typ, err := strconv.ParseUint(token[offset:], 10, 16) - if err != nil { - return 0, false - } - return uint16(typ), true -} - -// stringToTTL parses things like 2w, 2m, etc, and returns the time in seconds. -func stringToTTL(token string) (uint32, bool) { - var s, i uint32 - for _, c := range token { - switch c { - case 's', 'S': - s += i - i = 0 - case 'm', 'M': - s += i * 60 - i = 0 - case 'h', 'H': - s += i * 60 * 60 - i = 0 - case 'd', 'D': - s += i * 60 * 60 * 24 - i = 0 - case 'w', 'W': - s += i * 60 * 60 * 24 * 7 - i = 0 - case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': - i *= 10 - i += uint32(c) - '0' - default: - return 0, false - } - } - return s + i, true -} - -// Parse LOC records' <digits>[.<digits>][mM] into a -// mantissa exponent format. Token should contain the entire -// string (i.e. no spaces allowed) -func stringToCm(token string) (e, m uint8, ok bool) { - if token[len(token)-1] == 'M' || token[len(token)-1] == 'm' { - token = token[0 : len(token)-1] - } - s := strings.SplitN(token, ".", 2) - var meters, cmeters, val int - var err error - switch len(s) { - case 2: - if cmeters, err = strconv.Atoi(s[1]); err != nil { - return - } - // There's no point in having more than 2 digits in this part, and would rather make the implementation complicated ('123' should be treated as '12'). - // So we simply reject it. - // We also make sure the first character is a digit to reject '+-' signs. - if len(s[1]) > 2 || s[1][0] < '0' || s[1][0] > '9' { - return - } - if len(s[1]) == 1 { - // 'nn.1' must be treated as 'nn-meters and 10cm, not 1cm. - cmeters *= 10 - } - if s[0] == "" { - // This will allow omitting the 'meter' part, like .01 (meaning 0.01m = 1cm). - break - } - fallthrough - case 1: - if meters, err = strconv.Atoi(s[0]); err != nil { - return - } - // RFC1876 states the max value is 90000000.00. The latter two conditions enforce it. - if s[0][0] < '0' || s[0][0] > '9' || meters > 90000000 || (meters == 90000000 && cmeters != 0) { - return - } - case 0: - // huh? - return 0, 0, false - } - ok = true - if meters > 0 { - e = 2 - val = meters - } else { - e = 0 - val = cmeters - } - for val >= 10 { - e++ - val /= 10 - } - m = uint8(val) - return -} - -func toAbsoluteName(name, origin string) (absolute string, ok bool) { - // check for an explicit origin reference - if name == "@" { - // require a nonempty origin - if origin == "" { - return "", false - } - return origin, true - } - - // require a valid domain name - _, ok = IsDomainName(name) - if !ok || name == "" { - return "", false - } - - // check if name is already absolute - if IsFqdn(name) { - return name, true - } - - // require a nonempty origin - if origin == "" { - return "", false - } - return appendOrigin(name, origin), true -} - -func appendOrigin(name, origin string) string { - if origin == "." { - return name + origin - } - return name + "." + origin -} - -// LOC record helper function -func locCheckNorth(token string, latitude uint32) (uint32, bool) { - if latitude > 90*1000*60*60 { - return latitude, false - } - switch token { - case "n", "N": - return LOC_EQUATOR + latitude, true - case "s", "S": - return LOC_EQUATOR - latitude, true - } - return latitude, false -} - -// LOC record helper function -func locCheckEast(token string, longitude uint32) (uint32, bool) { - if longitude > 180*1000*60*60 { - return longitude, false - } - switch token { - case "e", "E": - return LOC_EQUATOR + longitude, true - case "w", "W": - return LOC_EQUATOR - longitude, true - } - return longitude, false -} - -// "Eat" the rest of the "line" -func slurpRemainder(c *zlexer) *ParseError { - l, _ := c.Next() - switch l.value { - case zBlank: - l, _ = c.Next() - if l.value != zNewline && l.value != zEOF { - return &ParseError{"", "garbage after rdata", l} - } - case zNewline: - case zEOF: - default: - return &ParseError{"", "garbage after rdata", l} - } - return nil -} - -// Parse a 64 bit-like ipv6 address: "0014:4fff:ff20:ee64" -// Used for NID and L64 record. -func stringToNodeID(l lex) (uint64, *ParseError) { - if len(l.token) < 19 { - return 0, &ParseError{l.token, "bad NID/L64 NodeID/Locator64", l} - } - // There must be three colons at fixes positions, if not its a parse error - if l.token[4] != ':' && l.token[9] != ':' && l.token[14] != ':' { - return 0, &ParseError{l.token, "bad NID/L64 NodeID/Locator64", l} - } - s := l.token[0:4] + l.token[5:9] + l.token[10:14] + l.token[15:19] - u, err := strconv.ParseUint(s, 16, 64) - if err != nil { - return 0, &ParseError{l.token, "bad NID/L64 NodeID/Locator64", l} - } - return u, nil -} diff --git a/vendor/github.com/miekg/dns/scan_rr.go b/vendor/github.com/miekg/dns/scan_rr.go deleted file mode 100644 index e398484da9..0000000000 --- a/vendor/github.com/miekg/dns/scan_rr.go +++ /dev/null @@ -1,1778 +0,0 @@ -package dns - -import ( - "bytes" - "encoding/base64" - "net" - "strconv" - "strings" -) - -// A remainder of the rdata with embedded spaces, return the parsed string (sans the spaces) -// or an error -func endingToString(c *zlexer, errstr string) (string, *ParseError) { - var buffer bytes.Buffer - l, _ := c.Next() // zString - for l.value != zNewline && l.value != zEOF { - if l.err { - return buffer.String(), &ParseError{"", errstr, l} - } - switch l.value { - case zString: - buffer.WriteString(l.token) - case zBlank: // Ok - default: - return "", &ParseError{"", errstr, l} - } - l, _ = c.Next() - } - - return buffer.String(), nil -} - -// A remainder of the rdata with embedded spaces, split on unquoted whitespace -// and return the parsed string slice or an error -func endingToTxtSlice(c *zlexer, errstr string) ([]string, *ParseError) { - // Get the remaining data until we see a zNewline - l, _ := c.Next() - if l.err { - return nil, &ParseError{"", errstr, l} - } - - // Build the slice - s := make([]string, 0) - quote := false - empty := false - for l.value != zNewline && l.value != zEOF { - if l.err { - return nil, &ParseError{"", errstr, l} - } - switch l.value { - case zString: - empty = false - if len(l.token) > 255 { - // split up tokens that are larger than 255 into 255-chunks - sx := []string{} - p, i := 0, 255 - for { - if i <= len(l.token) { - sx = append(sx, l.token[p:i]) - } else { - sx = append(sx, l.token[p:]) - break - - } - p, i = p+255, i+255 - } - s = append(s, sx...) - break - } - - s = append(s, l.token) - case zBlank: - if quote { - // zBlank can only be seen in between txt parts. - return nil, &ParseError{"", errstr, l} - } - case zQuote: - if empty && quote { - s = append(s, "") - } - quote = !quote - empty = true - default: - return nil, &ParseError{"", errstr, l} - } - l, _ = c.Next() - } - - if quote { - return nil, &ParseError{"", errstr, l} - } - - return s, nil -} - -func (rr *A) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - rr.A = net.ParseIP(l.token) - // IPv4 addresses cannot include ":". - // We do this rather than use net.IP's To4() because - // To4() treats IPv4-mapped IPv6 addresses as being - // IPv4. - isIPv4 := !strings.Contains(l.token, ":") - if rr.A == nil || !isIPv4 || l.err { - return &ParseError{"", "bad A A", l} - } - return slurpRemainder(c) -} - -func (rr *AAAA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - rr.AAAA = net.ParseIP(l.token) - // IPv6 addresses must include ":", and IPv4 - // addresses cannot include ":". - isIPv6 := strings.Contains(l.token, ":") - if rr.AAAA == nil || !isIPv6 || l.err { - return &ParseError{"", "bad AAAA AAAA", l} - } - return slurpRemainder(c) -} - -func (rr *NS) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad NS Ns", l} - } - rr.Ns = name - return slurpRemainder(c) -} - -func (rr *PTR) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad PTR Ptr", l} - } - rr.Ptr = name - return slurpRemainder(c) -} - -func (rr *NSAPPTR) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad NSAP-PTR Ptr", l} - } - rr.Ptr = name - return slurpRemainder(c) -} - -func (rr *RP) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - mbox, mboxOk := toAbsoluteName(l.token, o) - if l.err || !mboxOk { - return &ParseError{"", "bad RP Mbox", l} - } - rr.Mbox = mbox - - c.Next() // zBlank - l, _ = c.Next() - rr.Txt = l.token - - txt, txtOk := toAbsoluteName(l.token, o) - if l.err || !txtOk { - return &ParseError{"", "bad RP Txt", l} - } - rr.Txt = txt - - return slurpRemainder(c) -} - -func (rr *MR) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad MR Mr", l} - } - rr.Mr = name - return slurpRemainder(c) -} - -func (rr *MB) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad MB Mb", l} - } - rr.Mb = name - return slurpRemainder(c) -} - -func (rr *MG) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad MG Mg", l} - } - rr.Mg = name - return slurpRemainder(c) -} - -func (rr *HINFO) parse(c *zlexer, o string) *ParseError { - chunks, e := endingToTxtSlice(c, "bad HINFO Fields") - if e != nil { - return e - } - - if ln := len(chunks); ln == 0 { - return nil - } else if ln == 1 { - // Can we split it? - if out := strings.Fields(chunks[0]); len(out) > 1 { - chunks = out - } else { - chunks = append(chunks, "") - } - } - - rr.Cpu = chunks[0] - rr.Os = strings.Join(chunks[1:], " ") - - return nil -} - -func (rr *MINFO) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - rmail, rmailOk := toAbsoluteName(l.token, o) - if l.err || !rmailOk { - return &ParseError{"", "bad MINFO Rmail", l} - } - rr.Rmail = rmail - - c.Next() // zBlank - l, _ = c.Next() - rr.Email = l.token - - email, emailOk := toAbsoluteName(l.token, o) - if l.err || !emailOk { - return &ParseError{"", "bad MINFO Email", l} - } - rr.Email = email - - return slurpRemainder(c) -} - -func (rr *MF) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad MF Mf", l} - } - rr.Mf = name - return slurpRemainder(c) -} - -func (rr *MD) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad MD Md", l} - } - rr.Md = name - return slurpRemainder(c) -} - -func (rr *MX) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad MX Pref", l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Mx = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad MX Mx", l} - } - rr.Mx = name - - return slurpRemainder(c) -} - -func (rr *RT) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil { - return &ParseError{"", "bad RT Preference", l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Host = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad RT Host", l} - } - rr.Host = name - - return slurpRemainder(c) -} - -func (rr *AFSDB) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad AFSDB Subtype", l} - } - rr.Subtype = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Hostname = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad AFSDB Hostname", l} - } - rr.Hostname = name - return slurpRemainder(c) -} - -func (rr *X25) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if l.err { - return &ParseError{"", "bad X25 PSDNAddress", l} - } - rr.PSDNAddress = l.token - return slurpRemainder(c) -} - -func (rr *KX) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad KX Pref", l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Exchanger = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad KX Exchanger", l} - } - rr.Exchanger = name - return slurpRemainder(c) -} - -func (rr *CNAME) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad CNAME Target", l} - } - rr.Target = name - return slurpRemainder(c) -} - -func (rr *DNAME) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad DNAME Target", l} - } - rr.Target = name - return slurpRemainder(c) -} - -func (rr *SOA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - ns, nsOk := toAbsoluteName(l.token, o) - if l.err || !nsOk { - return &ParseError{"", "bad SOA Ns", l} - } - rr.Ns = ns - - c.Next() // zBlank - l, _ = c.Next() - rr.Mbox = l.token - - mbox, mboxOk := toAbsoluteName(l.token, o) - if l.err || !mboxOk { - return &ParseError{"", "bad SOA Mbox", l} - } - rr.Mbox = mbox - - c.Next() // zBlank - - var ( - v uint32 - ok bool - ) - for i := 0; i < 5; i++ { - l, _ = c.Next() - if l.err { - return &ParseError{"", "bad SOA zone parameter", l} - } - if j, err := strconv.ParseUint(l.token, 10, 32); err != nil { - if i == 0 { - // Serial must be a number - return &ParseError{"", "bad SOA zone parameter", l} - } - // We allow other fields to be unitful duration strings - if v, ok = stringToTTL(l.token); !ok { - return &ParseError{"", "bad SOA zone parameter", l} - - } - } else { - v = uint32(j) - } - switch i { - case 0: - rr.Serial = v - c.Next() // zBlank - case 1: - rr.Refresh = v - c.Next() // zBlank - case 2: - rr.Retry = v - c.Next() // zBlank - case 3: - rr.Expire = v - c.Next() // zBlank - case 4: - rr.Minttl = v - } - } - return slurpRemainder(c) -} - -func (rr *SRV) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad SRV Priority", l} - } - rr.Priority = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - i, e1 := strconv.ParseUint(l.token, 10, 16) - if e1 != nil || l.err { - return &ParseError{"", "bad SRV Weight", l} - } - rr.Weight = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - i, e2 := strconv.ParseUint(l.token, 10, 16) - if e2 != nil || l.err { - return &ParseError{"", "bad SRV Port", l} - } - rr.Port = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Target = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad SRV Target", l} - } - rr.Target = name - return slurpRemainder(c) -} - -func (rr *NAPTR) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad NAPTR Order", l} - } - rr.Order = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - i, e1 := strconv.ParseUint(l.token, 10, 16) - if e1 != nil || l.err { - return &ParseError{"", "bad NAPTR Preference", l} - } - rr.Preference = uint16(i) - - // Flags - c.Next() // zBlank - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{"", "bad NAPTR Flags", l} - } - l, _ = c.Next() // Either String or Quote - if l.value == zString { - rr.Flags = l.token - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{"", "bad NAPTR Flags", l} - } - } else if l.value == zQuote { - rr.Flags = "" - } else { - return &ParseError{"", "bad NAPTR Flags", l} - } - - // Service - c.Next() // zBlank - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{"", "bad NAPTR Service", l} - } - l, _ = c.Next() // Either String or Quote - if l.value == zString { - rr.Service = l.token - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{"", "bad NAPTR Service", l} - } - } else if l.value == zQuote { - rr.Service = "" - } else { - return &ParseError{"", "bad NAPTR Service", l} - } - - // Regexp - c.Next() // zBlank - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{"", "bad NAPTR Regexp", l} - } - l, _ = c.Next() // Either String or Quote - if l.value == zString { - rr.Regexp = l.token - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{"", "bad NAPTR Regexp", l} - } - } else if l.value == zQuote { - rr.Regexp = "" - } else { - return &ParseError{"", "bad NAPTR Regexp", l} - } - - // After quote no space?? - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Replacement = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad NAPTR Replacement", l} - } - rr.Replacement = name - return slurpRemainder(c) -} - -func (rr *TALINK) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - previousName, previousNameOk := toAbsoluteName(l.token, o) - if l.err || !previousNameOk { - return &ParseError{"", "bad TALINK PreviousName", l} - } - rr.PreviousName = previousName - - c.Next() // zBlank - l, _ = c.Next() - rr.NextName = l.token - - nextName, nextNameOk := toAbsoluteName(l.token, o) - if l.err || !nextNameOk { - return &ParseError{"", "bad TALINK NextName", l} - } - rr.NextName = nextName - - return slurpRemainder(c) -} - -func (rr *LOC) parse(c *zlexer, o string) *ParseError { - // Non zero defaults for LOC record, see RFC 1876, Section 3. - rr.Size = 0x12 // 1e2 cm (1m) - rr.HorizPre = 0x16 // 1e6 cm (10000m) - rr.VertPre = 0x13 // 1e3 cm (10m) - ok := false - - // North - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 32) - if e != nil || l.err || i > 90 { - return &ParseError{"", "bad LOC Latitude", l} - } - rr.Latitude = 1000 * 60 * 60 * uint32(i) - - c.Next() // zBlank - // Either number, 'N' or 'S' - l, _ = c.Next() - if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok { - goto East - } - if i, err := strconv.ParseUint(l.token, 10, 32); err != nil || l.err || i > 59 { - return &ParseError{"", "bad LOC Latitude minutes", l} - } else { - rr.Latitude += 1000 * 60 * uint32(i) - } - - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseFloat(l.token, 64); err != nil || l.err || i < 0 || i >= 60 { - return &ParseError{"", "bad LOC Latitude seconds", l} - } else { - rr.Latitude += uint32(1000 * i) - } - c.Next() // zBlank - // Either number, 'N' or 'S' - l, _ = c.Next() - if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok { - goto East - } - // If still alive, flag an error - return &ParseError{"", "bad LOC Latitude North/South", l} - -East: - // East - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseUint(l.token, 10, 32); err != nil || l.err || i > 180 { - return &ParseError{"", "bad LOC Longitude", l} - } else { - rr.Longitude = 1000 * 60 * 60 * uint32(i) - } - c.Next() // zBlank - // Either number, 'E' or 'W' - l, _ = c.Next() - if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok { - goto Altitude - } - if i, err := strconv.ParseUint(l.token, 10, 32); err != nil || l.err || i > 59 { - return &ParseError{"", "bad LOC Longitude minutes", l} - } else { - rr.Longitude += 1000 * 60 * uint32(i) - } - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseFloat(l.token, 64); err != nil || l.err || i < 0 || i >= 60 { - return &ParseError{"", "bad LOC Longitude seconds", l} - } else { - rr.Longitude += uint32(1000 * i) - } - c.Next() // zBlank - // Either number, 'E' or 'W' - l, _ = c.Next() - if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok { - goto Altitude - } - // If still alive, flag an error - return &ParseError{"", "bad LOC Longitude East/West", l} - -Altitude: - c.Next() // zBlank - l, _ = c.Next() - if l.token == "" || l.err { - return &ParseError{"", "bad LOC Altitude", l} - } - if l.token[len(l.token)-1] == 'M' || l.token[len(l.token)-1] == 'm' { - l.token = l.token[0 : len(l.token)-1] - } - if i, err := strconv.ParseFloat(l.token, 64); err != nil { - return &ParseError{"", "bad LOC Altitude", l} - } else { - rr.Altitude = uint32(i*100.0 + 10000000.0 + 0.5) - } - - // And now optionally the other values - l, _ = c.Next() - count := 0 - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zString: - switch count { - case 0: // Size - exp, m, ok := stringToCm(l.token) - if !ok { - return &ParseError{"", "bad LOC Size", l} - } - rr.Size = exp&0x0f | m<<4&0xf0 - case 1: // HorizPre - exp, m, ok := stringToCm(l.token) - if !ok { - return &ParseError{"", "bad LOC HorizPre", l} - } - rr.HorizPre = exp&0x0f | m<<4&0xf0 - case 2: // VertPre - exp, m, ok := stringToCm(l.token) - if !ok { - return &ParseError{"", "bad LOC VertPre", l} - } - rr.VertPre = exp&0x0f | m<<4&0xf0 - } - count++ - case zBlank: - // Ok - default: - return &ParseError{"", "bad LOC Size, HorizPre or VertPre", l} - } - l, _ = c.Next() - } - return nil -} - -func (rr *HIP) parse(c *zlexer, o string) *ParseError { - // HitLength is not represented - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{"", "bad HIP PublicKeyAlgorithm", l} - } - rr.PublicKeyAlgorithm = uint8(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - if l.token == "" || l.err { - return &ParseError{"", "bad HIP Hit", l} - } - rr.Hit = l.token // This can not contain spaces, see RFC 5205 Section 6. - rr.HitLength = uint8(len(rr.Hit)) / 2 - - c.Next() // zBlank - l, _ = c.Next() // zString - if l.token == "" || l.err { - return &ParseError{"", "bad HIP PublicKey", l} - } - rr.PublicKey = l.token // This cannot contain spaces - decodedPK, decodedPKerr := base64.StdEncoding.DecodeString(rr.PublicKey) - if decodedPKerr != nil { - return &ParseError{"", "bad HIP PublicKey", l} - } - rr.PublicKeyLength = uint16(len(decodedPK)) - - // RendezvousServers (if any) - l, _ = c.Next() - var xs []string - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zString: - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad HIP RendezvousServers", l} - } - xs = append(xs, name) - case zBlank: - // Ok - default: - return &ParseError{"", "bad HIP RendezvousServers", l} - } - l, _ = c.Next() - } - - rr.RendezvousServers = xs - return nil -} - -func (rr *CERT) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if v, ok := StringToCertType[l.token]; ok { - rr.Type = v - } else if i, err := strconv.ParseUint(l.token, 10, 16); err != nil { - return &ParseError{"", "bad CERT Type", l} - } else { - rr.Type = uint16(i) - } - c.Next() // zBlank - l, _ = c.Next() // zString - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad CERT KeyTag", l} - } - rr.KeyTag = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - if v, ok := StringToAlgorithm[l.token]; ok { - rr.Algorithm = v - } else if i, err := strconv.ParseUint(l.token, 10, 8); err != nil { - return &ParseError{"", "bad CERT Algorithm", l} - } else { - rr.Algorithm = uint8(i) - } - s, e1 := endingToString(c, "bad CERT Certificate") - if e1 != nil { - return e1 - } - rr.Certificate = s - return nil -} - -func (rr *OPENPGPKEY) parse(c *zlexer, o string) *ParseError { - s, e := endingToString(c, "bad OPENPGPKEY PublicKey") - if e != nil { - return e - } - rr.PublicKey = s - return nil -} - -func (rr *CSYNC) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - j, e := strconv.ParseUint(l.token, 10, 32) - if e != nil { - // Serial must be a number - return &ParseError{"", "bad CSYNC serial", l} - } - rr.Serial = uint32(j) - - c.Next() // zBlank - - l, _ = c.Next() - j, e1 := strconv.ParseUint(l.token, 10, 16) - if e1 != nil { - // Serial must be a number - return &ParseError{"", "bad CSYNC flags", l} - } - rr.Flags = uint16(j) - - rr.TypeBitMap = make([]uint16, 0) - var ( - k uint16 - ok bool - ) - l, _ = c.Next() - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zBlank: - // Ok - case zString: - tokenUpper := strings.ToUpper(l.token) - if k, ok = StringToType[tokenUpper]; !ok { - if k, ok = typeToInt(l.token); !ok { - return &ParseError{"", "bad CSYNC TypeBitMap", l} - } - } - rr.TypeBitMap = append(rr.TypeBitMap, k) - default: - return &ParseError{"", "bad CSYNC TypeBitMap", l} - } - l, _ = c.Next() - } - return nil -} - -func (rr *ZONEMD) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 32) - if e != nil || l.err { - return &ParseError{"", "bad ZONEMD Serial", l} - } - rr.Serial = uint32(i) - - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad ZONEMD Scheme", l} - } - rr.Scheme = uint8(i) - - c.Next() // zBlank - l, _ = c.Next() - i, err := strconv.ParseUint(l.token, 10, 8) - if err != nil || l.err { - return &ParseError{"", "bad ZONEMD Hash Algorithm", l} - } - rr.Hash = uint8(i) - - s, e2 := endingToString(c, "bad ZONEMD Digest") - if e2 != nil { - return e2 - } - rr.Digest = s - return nil -} - -func (rr *SIG) parse(c *zlexer, o string) *ParseError { return rr.RRSIG.parse(c, o) } - -func (rr *RRSIG) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - tokenUpper := strings.ToUpper(l.token) - if t, ok := StringToType[tokenUpper]; !ok { - if strings.HasPrefix(tokenUpper, "TYPE") { - t, ok = typeToInt(l.token) - if !ok { - return &ParseError{"", "bad RRSIG Typecovered", l} - } - rr.TypeCovered = t - } else { - return &ParseError{"", "bad RRSIG Typecovered", l} - } - } else { - rr.TypeCovered = t - } - - c.Next() // zBlank - l, _ = c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{"", "bad RRSIG Algorithm", l} - } - rr.Algorithm = uint8(i) - - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad RRSIG Labels", l} - } - rr.Labels = uint8(i) - - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 32) - if e2 != nil || l.err { - return &ParseError{"", "bad RRSIG OrigTtl", l} - } - rr.OrigTtl = uint32(i) - - c.Next() // zBlank - l, _ = c.Next() - if i, err := StringToTime(l.token); err != nil { - // Try to see if all numeric and use it as epoch - if i, err := strconv.ParseUint(l.token, 10, 32); err == nil { - rr.Expiration = uint32(i) - } else { - return &ParseError{"", "bad RRSIG Expiration", l} - } - } else { - rr.Expiration = i - } - - c.Next() // zBlank - l, _ = c.Next() - if i, err := StringToTime(l.token); err != nil { - if i, err := strconv.ParseUint(l.token, 10, 32); err == nil { - rr.Inception = uint32(i) - } else { - return &ParseError{"", "bad RRSIG Inception", l} - } - } else { - rr.Inception = i - } - - c.Next() // zBlank - l, _ = c.Next() - i, e3 := strconv.ParseUint(l.token, 10, 16) - if e3 != nil || l.err { - return &ParseError{"", "bad RRSIG KeyTag", l} - } - rr.KeyTag = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() - rr.SignerName = l.token - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad RRSIG SignerName", l} - } - rr.SignerName = name - - s, e4 := endingToString(c, "bad RRSIG Signature") - if e4 != nil { - return e4 - } - rr.Signature = s - - return nil -} - -func (rr *NSEC) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad NSEC NextDomain", l} - } - rr.NextDomain = name - - rr.TypeBitMap = make([]uint16, 0) - var ( - k uint16 - ok bool - ) - l, _ = c.Next() - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zBlank: - // Ok - case zString: - tokenUpper := strings.ToUpper(l.token) - if k, ok = StringToType[tokenUpper]; !ok { - if k, ok = typeToInt(l.token); !ok { - return &ParseError{"", "bad NSEC TypeBitMap", l} - } - } - rr.TypeBitMap = append(rr.TypeBitMap, k) - default: - return &ParseError{"", "bad NSEC TypeBitMap", l} - } - l, _ = c.Next() - } - return nil -} - -func (rr *NSEC3) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{"", "bad NSEC3 Hash", l} - } - rr.Hash = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad NSEC3 Flags", l} - } - rr.Flags = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 16) - if e2 != nil || l.err { - return &ParseError{"", "bad NSEC3 Iterations", l} - } - rr.Iterations = uint16(i) - c.Next() - l, _ = c.Next() - if l.token == "" || l.err { - return &ParseError{"", "bad NSEC3 Salt", l} - } - if l.token != "-" { - rr.SaltLength = uint8(len(l.token)) / 2 - rr.Salt = l.token - } - - c.Next() - l, _ = c.Next() - if l.token == "" || l.err { - return &ParseError{"", "bad NSEC3 NextDomain", l} - } - rr.HashLength = 20 // Fix for NSEC3 (sha1 160 bits) - rr.NextDomain = l.token - - rr.TypeBitMap = make([]uint16, 0) - var ( - k uint16 - ok bool - ) - l, _ = c.Next() - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zBlank: - // Ok - case zString: - tokenUpper := strings.ToUpper(l.token) - if k, ok = StringToType[tokenUpper]; !ok { - if k, ok = typeToInt(l.token); !ok { - return &ParseError{"", "bad NSEC3 TypeBitMap", l} - } - } - rr.TypeBitMap = append(rr.TypeBitMap, k) - default: - return &ParseError{"", "bad NSEC3 TypeBitMap", l} - } - l, _ = c.Next() - } - return nil -} - -func (rr *NSEC3PARAM) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{"", "bad NSEC3PARAM Hash", l} - } - rr.Hash = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad NSEC3PARAM Flags", l} - } - rr.Flags = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 16) - if e2 != nil || l.err { - return &ParseError{"", "bad NSEC3PARAM Iterations", l} - } - rr.Iterations = uint16(i) - c.Next() - l, _ = c.Next() - if l.token != "-" { - rr.SaltLength = uint8(len(l.token) / 2) - rr.Salt = l.token - } - return slurpRemainder(c) -} - -func (rr *EUI48) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if len(l.token) != 17 || l.err { - return &ParseError{"", "bad EUI48 Address", l} - } - addr := make([]byte, 12) - dash := 0 - for i := 0; i < 10; i += 2 { - addr[i] = l.token[i+dash] - addr[i+1] = l.token[i+1+dash] - dash++ - if l.token[i+1+dash] != '-' { - return &ParseError{"", "bad EUI48 Address", l} - } - } - addr[10] = l.token[15] - addr[11] = l.token[16] - - i, e := strconv.ParseUint(string(addr), 16, 48) - if e != nil { - return &ParseError{"", "bad EUI48 Address", l} - } - rr.Address = i - return slurpRemainder(c) -} - -func (rr *EUI64) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if len(l.token) != 23 || l.err { - return &ParseError{"", "bad EUI64 Address", l} - } - addr := make([]byte, 16) - dash := 0 - for i := 0; i < 14; i += 2 { - addr[i] = l.token[i+dash] - addr[i+1] = l.token[i+1+dash] - dash++ - if l.token[i+1+dash] != '-' { - return &ParseError{"", "bad EUI64 Address", l} - } - } - addr[14] = l.token[21] - addr[15] = l.token[22] - - i, e := strconv.ParseUint(string(addr), 16, 64) - if e != nil { - return &ParseError{"", "bad EUI68 Address", l} - } - rr.Address = i - return slurpRemainder(c) -} - -func (rr *SSHFP) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{"", "bad SSHFP Algorithm", l} - } - rr.Algorithm = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad SSHFP Type", l} - } - rr.Type = uint8(i) - c.Next() // zBlank - s, e2 := endingToString(c, "bad SSHFP Fingerprint") - if e2 != nil { - return e2 - } - rr.FingerPrint = s - return nil -} - -func (rr *DNSKEY) parseDNSKEY(c *zlexer, o, typ string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad " + typ + " Flags", l} - } - rr.Flags = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad " + typ + " Protocol", l} - } - rr.Protocol = uint8(i) - c.Next() // zBlank - l, _ = c.Next() // zString - i, e2 := strconv.ParseUint(l.token, 10, 8) - if e2 != nil || l.err { - return &ParseError{"", "bad " + typ + " Algorithm", l} - } - rr.Algorithm = uint8(i) - s, e3 := endingToString(c, "bad "+typ+" PublicKey") - if e3 != nil { - return e3 - } - rr.PublicKey = s - return nil -} - -func (rr *DNSKEY) parse(c *zlexer, o string) *ParseError { return rr.parseDNSKEY(c, o, "DNSKEY") } -func (rr *KEY) parse(c *zlexer, o string) *ParseError { return rr.parseDNSKEY(c, o, "KEY") } -func (rr *CDNSKEY) parse(c *zlexer, o string) *ParseError { return rr.parseDNSKEY(c, o, "CDNSKEY") } -func (rr *DS) parse(c *zlexer, o string) *ParseError { return rr.parseDS(c, o, "DS") } -func (rr *DLV) parse(c *zlexer, o string) *ParseError { return rr.parseDS(c, o, "DLV") } -func (rr *CDS) parse(c *zlexer, o string) *ParseError { return rr.parseDS(c, o, "CDS") } - -func (rr *RKEY) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad RKEY Flags", l} - } - rr.Flags = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad RKEY Protocol", l} - } - rr.Protocol = uint8(i) - c.Next() // zBlank - l, _ = c.Next() // zString - i, e2 := strconv.ParseUint(l.token, 10, 8) - if e2 != nil || l.err { - return &ParseError{"", "bad RKEY Algorithm", l} - } - rr.Algorithm = uint8(i) - s, e3 := endingToString(c, "bad RKEY PublicKey") - if e3 != nil { - return e3 - } - rr.PublicKey = s - return nil -} - -func (rr *EID) parse(c *zlexer, o string) *ParseError { - s, e := endingToString(c, "bad EID Endpoint") - if e != nil { - return e - } - rr.Endpoint = s - return nil -} - -func (rr *NIMLOC) parse(c *zlexer, o string) *ParseError { - s, e := endingToString(c, "bad NIMLOC Locator") - if e != nil { - return e - } - rr.Locator = s - return nil -} - -func (rr *GPOS) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - _, e := strconv.ParseFloat(l.token, 64) - if e != nil || l.err { - return &ParseError{"", "bad GPOS Longitude", l} - } - rr.Longitude = l.token - c.Next() // zBlank - l, _ = c.Next() - _, e1 := strconv.ParseFloat(l.token, 64) - if e1 != nil || l.err { - return &ParseError{"", "bad GPOS Latitude", l} - } - rr.Latitude = l.token - c.Next() // zBlank - l, _ = c.Next() - _, e2 := strconv.ParseFloat(l.token, 64) - if e2 != nil || l.err { - return &ParseError{"", "bad GPOS Altitude", l} - } - rr.Altitude = l.token - return slurpRemainder(c) -} - -func (rr *DS) parseDS(c *zlexer, o, typ string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad " + typ + " KeyTag", l} - } - rr.KeyTag = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseUint(l.token, 10, 8); err != nil { - tokenUpper := strings.ToUpper(l.token) - i, ok := StringToAlgorithm[tokenUpper] - if !ok || l.err { - return &ParseError{"", "bad " + typ + " Algorithm", l} - } - rr.Algorithm = i - } else { - rr.Algorithm = uint8(i) - } - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad " + typ + " DigestType", l} - } - rr.DigestType = uint8(i) - s, e2 := endingToString(c, "bad "+typ+" Digest") - if e2 != nil { - return e2 - } - rr.Digest = s - return nil -} - -func (rr *TA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad TA KeyTag", l} - } - rr.KeyTag = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseUint(l.token, 10, 8); err != nil { - tokenUpper := strings.ToUpper(l.token) - i, ok := StringToAlgorithm[tokenUpper] - if !ok || l.err { - return &ParseError{"", "bad TA Algorithm", l} - } - rr.Algorithm = i - } else { - rr.Algorithm = uint8(i) - } - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad TA DigestType", l} - } - rr.DigestType = uint8(i) - s, e2 := endingToString(c, "bad TA Digest") - if e2 != nil { - return e2 - } - rr.Digest = s - return nil -} - -func (rr *TLSA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{"", "bad TLSA Usage", l} - } - rr.Usage = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad TLSA Selector", l} - } - rr.Selector = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 8) - if e2 != nil || l.err { - return &ParseError{"", "bad TLSA MatchingType", l} - } - rr.MatchingType = uint8(i) - // So this needs be e2 (i.e. different than e), because...??t - s, e3 := endingToString(c, "bad TLSA Certificate") - if e3 != nil { - return e3 - } - rr.Certificate = s - return nil -} - -func (rr *SMIMEA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{"", "bad SMIMEA Usage", l} - } - rr.Usage = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad SMIMEA Selector", l} - } - rr.Selector = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 8) - if e2 != nil || l.err { - return &ParseError{"", "bad SMIMEA MatchingType", l} - } - rr.MatchingType = uint8(i) - // So this needs be e2 (i.e. different than e), because...??t - s, e3 := endingToString(c, "bad SMIMEA Certificate") - if e3 != nil { - return e3 - } - rr.Certificate = s - return nil -} - -func (rr *RFC3597) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if l.token != "\\#" { - return &ParseError{"", "bad RFC3597 Rdata", l} - } - - c.Next() // zBlank - l, _ = c.Next() - rdlength, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad RFC3597 Rdata ", l} - } - - s, e1 := endingToString(c, "bad RFC3597 Rdata") - if e1 != nil { - return e1 - } - if int(rdlength)*2 != len(s) { - return &ParseError{"", "bad RFC3597 Rdata", l} - } - rr.Rdata = s - return nil -} - -func (rr *SPF) parse(c *zlexer, o string) *ParseError { - s, e := endingToTxtSlice(c, "bad SPF Txt") - if e != nil { - return e - } - rr.Txt = s - return nil -} - -func (rr *AVC) parse(c *zlexer, o string) *ParseError { - s, e := endingToTxtSlice(c, "bad AVC Txt") - if e != nil { - return e - } - rr.Txt = s - return nil -} - -func (rr *TXT) parse(c *zlexer, o string) *ParseError { - // no zBlank reading here, because all this rdata is TXT - s, e := endingToTxtSlice(c, "bad TXT Txt") - if e != nil { - return e - } - rr.Txt = s - return nil -} - -// identical to setTXT -func (rr *NINFO) parse(c *zlexer, o string) *ParseError { - s, e := endingToTxtSlice(c, "bad NINFO ZSData") - if e != nil { - return e - } - rr.ZSData = s - return nil -} - -func (rr *URI) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad URI Priority", l} - } - rr.Priority = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 16) - if e1 != nil || l.err { - return &ParseError{"", "bad URI Weight", l} - } - rr.Weight = uint16(i) - - c.Next() // zBlank - s, e2 := endingToTxtSlice(c, "bad URI Target") - if e2 != nil { - return e2 - } - if len(s) != 1 { - return &ParseError{"", "bad URI Target", l} - } - rr.Target = s[0] - return nil -} - -func (rr *DHCID) parse(c *zlexer, o string) *ParseError { - // awesome record to parse! - s, e := endingToString(c, "bad DHCID Digest") - if e != nil { - return e - } - rr.Digest = s - return nil -} - -func (rr *NID) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad NID Preference", l} - } - rr.Preference = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - u, e1 := stringToNodeID(l) - if e1 != nil || l.err { - return e1 - } - rr.NodeID = u - return slurpRemainder(c) -} - -func (rr *L32) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad L32 Preference", l} - } - rr.Preference = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Locator32 = net.ParseIP(l.token) - if rr.Locator32 == nil || l.err { - return &ParseError{"", "bad L32 Locator", l} - } - return slurpRemainder(c) -} - -func (rr *LP) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad LP Preference", l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Fqdn = l.token - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{"", "bad LP Fqdn", l} - } - rr.Fqdn = name - return slurpRemainder(c) -} - -func (rr *L64) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad L64 Preference", l} - } - rr.Preference = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - u, e1 := stringToNodeID(l) - if e1 != nil || l.err { - return e1 - } - rr.Locator64 = u - return slurpRemainder(c) -} - -func (rr *UID) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 32) - if e != nil || l.err { - return &ParseError{"", "bad UID Uid", l} - } - rr.Uid = uint32(i) - return slurpRemainder(c) -} - -func (rr *GID) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 32) - if e != nil || l.err { - return &ParseError{"", "bad GID Gid", l} - } - rr.Gid = uint32(i) - return slurpRemainder(c) -} - -func (rr *UINFO) parse(c *zlexer, o string) *ParseError { - s, e := endingToTxtSlice(c, "bad UINFO Uinfo") - if e != nil { - return e - } - if ln := len(s); ln == 0 { - return nil - } - rr.Uinfo = s[0] // silently discard anything after the first character-string - return nil -} - -func (rr *PX) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{"", "bad PX Preference", l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Map822 = l.token - map822, map822Ok := toAbsoluteName(l.token, o) - if l.err || !map822Ok { - return &ParseError{"", "bad PX Map822", l} - } - rr.Map822 = map822 - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Mapx400 = l.token - mapx400, mapx400Ok := toAbsoluteName(l.token, o) - if l.err || !mapx400Ok { - return &ParseError{"", "bad PX Mapx400", l} - } - rr.Mapx400 = mapx400 - return slurpRemainder(c) -} - -func (rr *CAA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{"", "bad CAA Flag", l} - } - rr.Flag = uint8(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - if l.value != zString { - return &ParseError{"", "bad CAA Tag", l} - } - rr.Tag = l.token - - c.Next() // zBlank - s, e1 := endingToTxtSlice(c, "bad CAA Value") - if e1 != nil { - return e1 - } - if len(s) != 1 { - return &ParseError{"", "bad CAA Value", l} - } - rr.Value = s[0] - return nil -} - -func (rr *TKEY) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - - // Algorithm - if l.value != zString { - return &ParseError{"", "bad TKEY algorithm", l} - } - rr.Algorithm = l.token - c.Next() // zBlank - - // Get the key length and key values - l, _ = c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{"", "bad TKEY key length", l} - } - rr.KeySize = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - if l.value != zString { - return &ParseError{"", "bad TKEY key", l} - } - rr.Key = l.token - c.Next() // zBlank - - // Get the otherdata length and string data - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{"", "bad TKEY otherdata length", l} - } - rr.OtherLen = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - if l.value != zString { - return &ParseError{"", "bad TKEY otherday", l} - } - rr.OtherData = l.token - return nil -} - -func (rr *APL) parse(c *zlexer, o string) *ParseError { - var prefixes []APLPrefix - - for { - l, _ := c.Next() - if l.value == zNewline || l.value == zEOF { - break - } - if l.value == zBlank && prefixes != nil { - continue - } - if l.value != zString { - return &ParseError{"", "unexpected APL field", l} - } - - // Expected format: [!]afi:address/prefix - - colon := strings.IndexByte(l.token, ':') - if colon == -1 { - return &ParseError{"", "missing colon in APL field", l} - } - - family, cidr := l.token[:colon], l.token[colon+1:] - - var negation bool - if family != "" && family[0] == '!' { - negation = true - family = family[1:] - } - - afi, e := strconv.ParseUint(family, 10, 16) - if e != nil { - return &ParseError{"", "failed to parse APL family: " + e.Error(), l} - } - var addrLen int - switch afi { - case 1: - addrLen = net.IPv4len - case 2: - addrLen = net.IPv6len - default: - return &ParseError{"", "unrecognized APL family", l} - } - - ip, subnet, e1 := net.ParseCIDR(cidr) - if e1 != nil { - return &ParseError{"", "failed to parse APL address: " + e1.Error(), l} - } - if !ip.Equal(subnet.IP) { - return &ParseError{"", "extra bits in APL address", l} - } - - if len(subnet.IP) != addrLen { - return &ParseError{"", "address mismatch with the APL family", l} - } - - prefixes = append(prefixes, APLPrefix{ - Negation: negation, - Network: *subnet, - }) - } - - rr.Prefixes = prefixes - return nil -} diff --git a/vendor/github.com/miekg/dns/serve_mux.go b/vendor/github.com/miekg/dns/serve_mux.go deleted file mode 100644 index e7f36e2218..0000000000 --- a/vendor/github.com/miekg/dns/serve_mux.go +++ /dev/null @@ -1,122 +0,0 @@ -package dns - -import ( - "sync" -) - -// ServeMux is an DNS request multiplexer. It matches the zone name of -// each incoming request against a list of registered patterns add calls -// the handler for the pattern that most closely matches the zone name. -// -// ServeMux is DNSSEC aware, meaning that queries for the DS record are -// redirected to the parent zone (if that is also registered), otherwise -// the child gets the query. -// -// ServeMux is also safe for concurrent access from multiple goroutines. -// -// The zero ServeMux is empty and ready for use. -type ServeMux struct { - z map[string]Handler - m sync.RWMutex -} - -// NewServeMux allocates and returns a new ServeMux. -func NewServeMux() *ServeMux { - return new(ServeMux) -} - -// DefaultServeMux is the default ServeMux used by Serve. -var DefaultServeMux = NewServeMux() - -func (mux *ServeMux) match(q string, t uint16) Handler { - mux.m.RLock() - defer mux.m.RUnlock() - if mux.z == nil { - return nil - } - - q = CanonicalName(q) - - var handler Handler - for off, end := 0, false; !end; off, end = NextLabel(q, off) { - if h, ok := mux.z[q[off:]]; ok { - if t != TypeDS { - return h - } - // Continue for DS to see if we have a parent too, if so delegate to the parent - handler = h - } - } - - // Wildcard match, if we have found nothing try the root zone as a last resort. - if h, ok := mux.z["."]; ok { - return h - } - - return handler -} - -// Handle adds a handler to the ServeMux for pattern. -func (mux *ServeMux) Handle(pattern string, handler Handler) { - if pattern == "" { - panic("dns: invalid pattern " + pattern) - } - mux.m.Lock() - if mux.z == nil { - mux.z = make(map[string]Handler) - } - mux.z[CanonicalName(pattern)] = handler - mux.m.Unlock() -} - -// HandleFunc adds a handler function to the ServeMux for pattern. -func (mux *ServeMux) HandleFunc(pattern string, handler func(ResponseWriter, *Msg)) { - mux.Handle(pattern, HandlerFunc(handler)) -} - -// HandleRemove deregisters the handler specific for pattern from the ServeMux. -func (mux *ServeMux) HandleRemove(pattern string) { - if pattern == "" { - panic("dns: invalid pattern " + pattern) - } - mux.m.Lock() - delete(mux.z, CanonicalName(pattern)) - mux.m.Unlock() -} - -// ServeDNS dispatches the request to the handler whose pattern most -// closely matches the request message. -// -// ServeDNS is DNSSEC aware, meaning that queries for the DS record -// are redirected to the parent zone (if that is also registered), -// otherwise the child gets the query. -// -// If no handler is found, or there is no question, a standard REFUSED -// message is returned -func (mux *ServeMux) ServeDNS(w ResponseWriter, req *Msg) { - var h Handler - if len(req.Question) >= 1 { // allow more than one question - h = mux.match(req.Question[0].Name, req.Question[0].Qtype) - } - - if h != nil { - h.ServeDNS(w, req) - } else { - handleRefused(w, req) - } -} - -// Handle registers the handler with the given pattern -// in the DefaultServeMux. The documentation for -// ServeMux explains how patterns are matched. -func Handle(pattern string, handler Handler) { DefaultServeMux.Handle(pattern, handler) } - -// HandleRemove deregisters the handle with the given pattern -// in the DefaultServeMux. -func HandleRemove(pattern string) { DefaultServeMux.HandleRemove(pattern) } - -// HandleFunc registers the handler function with the given pattern -// in the DefaultServeMux. -func HandleFunc(pattern string, handler func(ResponseWriter, *Msg)) { - DefaultServeMux.HandleFunc(pattern, handler) -} diff --git a/vendor/github.com/miekg/dns/server.go b/vendor/github.com/miekg/dns/server.go deleted file mode 100644 index b2a63bda49..0000000000 --- a/vendor/github.com/miekg/dns/server.go +++ /dev/null @@ -1,828 +0,0 @@ -// DNS server implementation. - -package dns - -import ( - "context" - "crypto/tls" - "encoding/binary" - "errors" - "io" - "net" - "strings" - "sync" - "time" -) - -// Default maximum number of TCP queries before we close the socket. -const maxTCPQueries = 128 - -// aLongTimeAgo is a non-zero time, far in the past, used for -// immediate cancelation of network operations. -var aLongTimeAgo = time.Unix(1, 0) - -// Handler is implemented by any value that implements ServeDNS. -type Handler interface { - ServeDNS(w ResponseWriter, r *Msg) -} - -// The HandlerFunc type is an adapter to allow the use of -// ordinary functions as DNS handlers. If f is a function -// with the appropriate signature, HandlerFunc(f) is a -// Handler object that calls f. -type HandlerFunc func(ResponseWriter, *Msg) - -// ServeDNS calls f(w, r). -func (f HandlerFunc) ServeDNS(w ResponseWriter, r *Msg) { - f(w, r) -} - -// A ResponseWriter interface is used by an DNS handler to -// construct an DNS response. -type ResponseWriter interface { - // LocalAddr returns the net.Addr of the server - LocalAddr() net.Addr - // RemoteAddr returns the net.Addr of the client that sent the current request. - RemoteAddr() net.Addr - // WriteMsg writes a reply back to the client. - WriteMsg(*Msg) error - // Write writes a raw buffer back to the client. - Write([]byte) (int, error) - // Close closes the connection. - Close() error - // TsigStatus returns the status of the Tsig. - TsigStatus() error - // TsigTimersOnly sets the tsig timers only boolean. - TsigTimersOnly(bool) - // Hijack lets the caller take over the connection. - // After a call to Hijack(), the DNS package will not do anything with the connection. - Hijack() -} - -// A ConnectionStater interface is used by a DNS Handler to access TLS connection state -// when available. -type ConnectionStater interface { - ConnectionState() *tls.ConnectionState -} - -type response struct { - closed bool // connection has been closed - hijacked bool // connection has been hijacked by handler - tsigTimersOnly bool - tsigStatus error - tsigRequestMAC string - tsigSecret map[string]string // the tsig secrets - udp net.PacketConn // i/o connection if UDP was used - tcp net.Conn // i/o connection if TCP was used - udpSession *SessionUDP // oob data to get egress interface right - pcSession net.Addr // address to use when writing to a generic net.PacketConn - writer Writer // writer to output the raw DNS bits -} - -// handleRefused returns a HandlerFunc that returns REFUSED for every request it gets. -func handleRefused(w ResponseWriter, r *Msg) { - m := new(Msg) - m.SetRcode(r, RcodeRefused) - w.WriteMsg(m) -} - -// HandleFailed returns a HandlerFunc that returns SERVFAIL for every request it gets. -// Deprecated: This function is going away. -func HandleFailed(w ResponseWriter, r *Msg) { - m := new(Msg) - m.SetRcode(r, RcodeServerFailure) - // does not matter if this write fails - w.WriteMsg(m) -} - -// ListenAndServe Starts a server on address and network specified Invoke handler -// for incoming queries. -func ListenAndServe(addr string, network string, handler Handler) error { - server := &Server{Addr: addr, Net: network, Handler: handler} - return server.ListenAndServe() -} - -// ListenAndServeTLS acts like http.ListenAndServeTLS, more information in -// http://golang.org/pkg/net/http/#ListenAndServeTLS -func ListenAndServeTLS(addr, certFile, keyFile string, handler Handler) error { - cert, err := tls.LoadX509KeyPair(certFile, keyFile) - if err != nil { - return err - } - - config := tls.Config{ - Certificates: []tls.Certificate{cert}, - } - - server := &Server{ - Addr: addr, - Net: "tcp-tls", - TLSConfig: &config, - Handler: handler, - } - - return server.ListenAndServe() -} - -// ActivateAndServe activates a server with a listener from systemd, -// l and p should not both be non-nil. -// If both l and p are not nil only p will be used. -// Invoke handler for incoming queries. -func ActivateAndServe(l net.Listener, p net.PacketConn, handler Handler) error { - server := &Server{Listener: l, PacketConn: p, Handler: handler} - return server.ActivateAndServe() -} - -// Writer writes raw DNS messages; each call to Write should send an entire message. -type Writer interface { - io.Writer -} - -// Reader reads raw DNS messages; each call to ReadTCP or ReadUDP should return an entire message. -type Reader interface { - // ReadTCP reads a raw message from a TCP connection. Implementations may alter - // connection properties, for example the read-deadline. - ReadTCP(conn net.Conn, timeout time.Duration) ([]byte, error) - // ReadUDP reads a raw message from a UDP connection. Implementations may alter - // connection properties, for example the read-deadline. - ReadUDP(conn *net.UDPConn, timeout time.Duration) ([]byte, *SessionUDP, error) -} - -// PacketConnReader is an optional interface that Readers can implement to support using generic net.PacketConns. -type PacketConnReader interface { - Reader - - // ReadPacketConn reads a raw message from a generic net.PacketConn UDP connection. Implementations may - // alter connection properties, for example the read-deadline. - ReadPacketConn(conn net.PacketConn, timeout time.Duration) ([]byte, net.Addr, error) -} - -// defaultReader is an adapter for the Server struct that implements the Reader and -// PacketConnReader interfaces using the readTCP, readUDP and readPacketConn funcs -// of the embedded Server. -type defaultReader struct { - *Server -} - -var _ PacketConnReader = defaultReader{} - -func (dr defaultReader) ReadTCP(conn net.Conn, timeout time.Duration) ([]byte, error) { - return dr.readTCP(conn, timeout) -} - -func (dr defaultReader) ReadUDP(conn *net.UDPConn, timeout time.Duration) ([]byte, *SessionUDP, error) { - return dr.readUDP(conn, timeout) -} - -func (dr defaultReader) ReadPacketConn(conn net.PacketConn, timeout time.Duration) ([]byte, net.Addr, error) { - return dr.readPacketConn(conn, timeout) -} - -// DecorateReader is a decorator hook for extending or supplanting the functionality of a Reader. -// Implementations should never return a nil Reader. -// Readers should also implement the optional PacketConnReader interface. -// PacketConnReader is required to use a generic net.PacketConn. -type DecorateReader func(Reader) Reader - -// DecorateWriter is a decorator hook for extending or supplanting the functionality of a Writer. -// Implementations should never return a nil Writer. -type DecorateWriter func(Writer) Writer - -// A Server defines parameters for running an DNS server. -type Server struct { - // Address to listen on, ":dns" if empty. - Addr string - // if "tcp" or "tcp-tls" (DNS over TLS) it will invoke a TCP listener, otherwise an UDP one - Net string - // TCP Listener to use, this is to aid in systemd's socket activation. - Listener net.Listener - // TLS connection configuration - TLSConfig *tls.Config - // UDP "Listener" to use, this is to aid in systemd's socket activation. - PacketConn net.PacketConn - // Handler to invoke, dns.DefaultServeMux if nil. - Handler Handler - // Default buffer size to use to read incoming UDP messages. If not set - // it defaults to MinMsgSize (512 B). - UDPSize int - // The net.Conn.SetReadTimeout value for new connections, defaults to 2 * time.Second. - ReadTimeout time.Duration - // The net.Conn.SetWriteTimeout value for new connections, defaults to 2 * time.Second. - WriteTimeout time.Duration - // TCP idle timeout for multiple queries, if nil, defaults to 8 * time.Second (RFC 5966). - IdleTimeout func() time.Duration - // Secret(s) for Tsig map[<zonename>]<base64 secret>. The zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2). - TsigSecret map[string]string - // If NotifyStartedFunc is set it is called once the server has started listening. - NotifyStartedFunc func() - // DecorateReader is optional, allows customization of the process that reads raw DNS messages. - DecorateReader DecorateReader - // DecorateWriter is optional, allows customization of the process that writes raw DNS messages. - DecorateWriter DecorateWriter - // Maximum number of TCP queries before we close the socket. Default is maxTCPQueries (unlimited if -1). - MaxTCPQueries int - // Whether to set the SO_REUSEPORT socket option, allowing multiple listeners to be bound to a single address. - // It is only supported on go1.11+ and when using ListenAndServe. - ReusePort bool - // AcceptMsgFunc will check the incoming message and will reject it early in the process. - // By default DefaultMsgAcceptFunc will be used. - MsgAcceptFunc MsgAcceptFunc - - // Shutdown handling - lock sync.RWMutex - started bool - shutdown chan struct{} - conns map[net.Conn]struct{} - - // A pool for UDP message buffers. - udpPool sync.Pool -} - -func (srv *Server) isStarted() bool { - srv.lock.RLock() - started := srv.started - srv.lock.RUnlock() - return started -} - -func makeUDPBuffer(size int) func() interface{} { - return func() interface{} { - return make([]byte, size) - } -} - -func (srv *Server) init() { - srv.shutdown = make(chan struct{}) - srv.conns = make(map[net.Conn]struct{}) - - if srv.UDPSize == 0 { - srv.UDPSize = MinMsgSize - } - if srv.MsgAcceptFunc == nil { - srv.MsgAcceptFunc = DefaultMsgAcceptFunc - } - if srv.Handler == nil { - srv.Handler = DefaultServeMux - } - - srv.udpPool.New = makeUDPBuffer(srv.UDPSize) -} - -func unlockOnce(l sync.Locker) func() { - var once sync.Once - return func() { once.Do(l.Unlock) } -} - -// ListenAndServe starts a nameserver on the configured address in *Server. -func (srv *Server) ListenAndServe() error { - unlock := unlockOnce(&srv.lock) - srv.lock.Lock() - defer unlock() - - if srv.started { - return &Error{err: "server already started"} - } - - addr := srv.Addr - if addr == "" { - addr = ":domain" - } - - srv.init() - - switch srv.Net { - case "tcp", "tcp4", "tcp6": - l, err := listenTCP(srv.Net, addr, srv.ReusePort) - if err != nil { - return err - } - srv.Listener = l - srv.started = true - unlock() - return srv.serveTCP(l) - case "tcp-tls", "tcp4-tls", "tcp6-tls": - if srv.TLSConfig == nil || (len(srv.TLSConfig.Certificates) == 0 && srv.TLSConfig.GetCertificate == nil) { - return errors.New("dns: neither Certificates nor GetCertificate set in Config") - } - network := strings.TrimSuffix(srv.Net, "-tls") - l, err := listenTCP(network, addr, srv.ReusePort) - if err != nil { - return err - } - l = tls.NewListener(l, srv.TLSConfig) - srv.Listener = l - srv.started = true - unlock() - return srv.serveTCP(l) - case "udp", "udp4", "udp6": - l, err := listenUDP(srv.Net, addr, srv.ReusePort) - if err != nil { - return err - } - u := l.(*net.UDPConn) - if e := setUDPSocketOptions(u); e != nil { - u.Close() - return e - } - srv.PacketConn = l - srv.started = true - unlock() - return srv.serveUDP(u) - } - return &Error{err: "bad network"} -} - -// ActivateAndServe starts a nameserver with the PacketConn or Listener -// configured in *Server. Its main use is to start a server from systemd. -func (srv *Server) ActivateAndServe() error { - unlock := unlockOnce(&srv.lock) - srv.lock.Lock() - defer unlock() - - if srv.started { - return &Error{err: "server already started"} - } - - srv.init() - - if srv.PacketConn != nil { - // Check PacketConn interface's type is valid and value - // is not nil - if t, ok := srv.PacketConn.(*net.UDPConn); ok && t != nil { - if e := setUDPSocketOptions(t); e != nil { - return e - } - } - srv.started = true - unlock() - return srv.serveUDP(srv.PacketConn) - } - if srv.Listener != nil { - srv.started = true - unlock() - return srv.serveTCP(srv.Listener) - } - return &Error{err: "bad listeners"} -} - -// Shutdown shuts down a server. After a call to Shutdown, ListenAndServe and -// ActivateAndServe will return. -func (srv *Server) Shutdown() error { - return srv.ShutdownContext(context.Background()) -} - -// ShutdownContext shuts down a server. After a call to ShutdownContext, -// ListenAndServe and ActivateAndServe will return. -// -// A context.Context may be passed to limit how long to wait for connections -// to terminate. -func (srv *Server) ShutdownContext(ctx context.Context) error { - srv.lock.Lock() - if !srv.started { - srv.lock.Unlock() - return &Error{err: "server not started"} - } - - srv.started = false - - if srv.PacketConn != nil { - srv.PacketConn.SetReadDeadline(aLongTimeAgo) // Unblock reads - } - - if srv.Listener != nil { - srv.Listener.Close() - } - - for rw := range srv.conns { - rw.SetReadDeadline(aLongTimeAgo) // Unblock reads - } - - srv.lock.Unlock() - - if testShutdownNotify != nil { - testShutdownNotify.Broadcast() - } - - var ctxErr error - select { - case <-srv.shutdown: - case <-ctx.Done(): - ctxErr = ctx.Err() - } - - if srv.PacketConn != nil { - srv.PacketConn.Close() - } - - return ctxErr -} - -var testShutdownNotify *sync.Cond - -// getReadTimeout is a helper func to use system timeout if server did not intend to change it. -func (srv *Server) getReadTimeout() time.Duration { - if srv.ReadTimeout != 0 { - return srv.ReadTimeout - } - return dnsTimeout -} - -// serveTCP starts a TCP listener for the server. -func (srv *Server) serveTCP(l net.Listener) error { - defer l.Close() - - if srv.NotifyStartedFunc != nil { - srv.NotifyStartedFunc() - } - - var wg sync.WaitGroup - defer func() { - wg.Wait() - close(srv.shutdown) - }() - - for srv.isStarted() { - rw, err := l.Accept() - if err != nil { - if !srv.isStarted() { - return nil - } - if neterr, ok := err.(net.Error); ok && neterr.Temporary() { - continue - } - return err - } - srv.lock.Lock() - // Track the connection to allow unblocking reads on shutdown. - srv.conns[rw] = struct{}{} - srv.lock.Unlock() - wg.Add(1) - go srv.serveTCPConn(&wg, rw) - } - - return nil -} - -// serveUDP starts a UDP listener for the server. -func (srv *Server) serveUDP(l net.PacketConn) error { - defer l.Close() - - reader := Reader(defaultReader{srv}) - if srv.DecorateReader != nil { - reader = srv.DecorateReader(reader) - } - - lUDP, isUDP := l.(*net.UDPConn) - readerPC, canPacketConn := reader.(PacketConnReader) - if !isUDP && !canPacketConn { - return &Error{err: "PacketConnReader was not implemented on Reader returned from DecorateReader but is required for net.PacketConn"} - } - - if srv.NotifyStartedFunc != nil { - srv.NotifyStartedFunc() - } - - var wg sync.WaitGroup - defer func() { - wg.Wait() - close(srv.shutdown) - }() - - rtimeout := srv.getReadTimeout() - // deadline is not used here - for srv.isStarted() { - var ( - m []byte - sPC net.Addr - sUDP *SessionUDP - err error - ) - if isUDP { - m, sUDP, err = reader.ReadUDP(lUDP, rtimeout) - } else { - m, sPC, err = readerPC.ReadPacketConn(l, rtimeout) - } - if err != nil { - if !srv.isStarted() { - return nil - } - if netErr, ok := err.(net.Error); ok && netErr.Temporary() { - continue - } - return err - } - if len(m) < headerSize { - if cap(m) == srv.UDPSize { - srv.udpPool.Put(m[:srv.UDPSize]) - } - continue - } - wg.Add(1) - go srv.serveUDPPacket(&wg, m, l, sUDP, sPC) - } - - return nil -} - -// Serve a new TCP connection. -func (srv *Server) serveTCPConn(wg *sync.WaitGroup, rw net.Conn) { - w := &response{tsigSecret: srv.TsigSecret, tcp: rw} - if srv.DecorateWriter != nil { - w.writer = srv.DecorateWriter(w) - } else { - w.writer = w - } - - reader := Reader(defaultReader{srv}) - if srv.DecorateReader != nil { - reader = srv.DecorateReader(reader) - } - - idleTimeout := tcpIdleTimeout - if srv.IdleTimeout != nil { - idleTimeout = srv.IdleTimeout() - } - - timeout := srv.getReadTimeout() - - limit := srv.MaxTCPQueries - if limit == 0 { - limit = maxTCPQueries - } - - for q := 0; (q < limit || limit == -1) && srv.isStarted(); q++ { - m, err := reader.ReadTCP(w.tcp, timeout) - if err != nil { - // TODO(tmthrgd): handle error - break - } - srv.serveDNS(m, w) - if w.closed { - break // Close() was called - } - if w.hijacked { - break // client will call Close() themselves - } - // The first read uses the read timeout, the rest use the - // idle timeout. - timeout = idleTimeout - } - - if !w.hijacked { - w.Close() - } - - srv.lock.Lock() - delete(srv.conns, w.tcp) - srv.lock.Unlock() - - wg.Done() -} - -// Serve a new UDP request. -func (srv *Server) serveUDPPacket(wg *sync.WaitGroup, m []byte, u net.PacketConn, udpSession *SessionUDP, pcSession net.Addr) { - w := &response{tsigSecret: srv.TsigSecret, udp: u, udpSession: udpSession, pcSession: pcSession} - if srv.DecorateWriter != nil { - w.writer = srv.DecorateWriter(w) - } else { - w.writer = w - } - - srv.serveDNS(m, w) - wg.Done() -} - -func (srv *Server) serveDNS(m []byte, w *response) { - dh, off, err := unpackMsgHdr(m, 0) - if err != nil { - // Let client hang, they are sending crap; any reply can be used to amplify. - return - } - - req := new(Msg) - req.setHdr(dh) - - switch action := srv.MsgAcceptFunc(dh); action { - case MsgAccept: - if req.unpack(dh, m, off) == nil { - break - } - - fallthrough - case MsgReject, MsgRejectNotImplemented: - opcode := req.Opcode - req.SetRcodeFormatError(req) - req.Zero = false - if action == MsgRejectNotImplemented { - req.Opcode = opcode - req.Rcode = RcodeNotImplemented - } - - // Are we allowed to delete any OPT records here? - req.Ns, req.Answer, req.Extra = nil, nil, nil - - w.WriteMsg(req) - fallthrough - case MsgIgnore: - if w.udp != nil && cap(m) == srv.UDPSize { - srv.udpPool.Put(m[:srv.UDPSize]) - } - - return - } - - w.tsigStatus = nil - if w.tsigSecret != nil { - if t := req.IsTsig(); t != nil { - if secret, ok := w.tsigSecret[t.Hdr.Name]; ok { - w.tsigStatus = TsigVerify(m, secret, "", false) - } else { - w.tsigStatus = ErrSecret - } - w.tsigTimersOnly = false - w.tsigRequestMAC = req.Extra[len(req.Extra)-1].(*TSIG).MAC - } - } - - if w.udp != nil && cap(m) == srv.UDPSize { - srv.udpPool.Put(m[:srv.UDPSize]) - } - - srv.Handler.ServeDNS(w, req) // Writes back to the client -} - -func (srv *Server) readTCP(conn net.Conn, timeout time.Duration) ([]byte, error) { - // If we race with ShutdownContext, the read deadline may - // have been set in the distant past to unblock the read - // below. We must not override it, otherwise we may block - // ShutdownContext. - srv.lock.RLock() - if srv.started { - conn.SetReadDeadline(time.Now().Add(timeout)) - } - srv.lock.RUnlock() - - var length uint16 - if err := binary.Read(conn, binary.BigEndian, &length); err != nil { - return nil, err - } - - m := make([]byte, length) - if _, err := io.ReadFull(conn, m); err != nil { - return nil, err - } - - return m, nil -} - -func (srv *Server) readUDP(conn *net.UDPConn, timeout time.Duration) ([]byte, *SessionUDP, error) { - srv.lock.RLock() - if srv.started { - // See the comment in readTCP above. - conn.SetReadDeadline(time.Now().Add(timeout)) - } - srv.lock.RUnlock() - - m := srv.udpPool.Get().([]byte) - n, s, err := ReadFromSessionUDP(conn, m) - if err != nil { - srv.udpPool.Put(m) - return nil, nil, err - } - m = m[:n] - return m, s, nil -} - -func (srv *Server) readPacketConn(conn net.PacketConn, timeout time.Duration) ([]byte, net.Addr, error) { - srv.lock.RLock() - if srv.started { - // See the comment in readTCP above. - conn.SetReadDeadline(time.Now().Add(timeout)) - } - srv.lock.RUnlock() - - m := srv.udpPool.Get().([]byte) - n, addr, err := conn.ReadFrom(m) - if err != nil { - srv.udpPool.Put(m) - return nil, nil, err - } - m = m[:n] - return m, addr, nil -} - -// WriteMsg implements the ResponseWriter.WriteMsg method. -func (w *response) WriteMsg(m *Msg) (err error) { - if w.closed { - return &Error{err: "WriteMsg called after Close"} - } - - var data []byte - if w.tsigSecret != nil { // if no secrets, dont check for the tsig (which is a longer check) - if t := m.IsTsig(); t != nil { - data, w.tsigRequestMAC, err = TsigGenerate(m, w.tsigSecret[t.Hdr.Name], w.tsigRequestMAC, w.tsigTimersOnly) - if err != nil { - return err - } - _, err = w.writer.Write(data) - return err - } - } - data, err = m.Pack() - if err != nil { - return err - } - _, err = w.writer.Write(data) - return err -} - -// Write implements the ResponseWriter.Write method. -func (w *response) Write(m []byte) (int, error) { - if w.closed { - return 0, &Error{err: "Write called after Close"} - } - - switch { - case w.udp != nil: - if u, ok := w.udp.(*net.UDPConn); ok { - return WriteToSessionUDP(u, m, w.udpSession) - } - return w.udp.WriteTo(m, w.pcSession) - case w.tcp != nil: - if len(m) > MaxMsgSize { - return 0, &Error{err: "message too large"} - } - - msg := make([]byte, 2+len(m)) - binary.BigEndian.PutUint16(msg, uint16(len(m))) - copy(msg[2:], m) - return w.tcp.Write(msg) - default: - panic("dns: internal error: udp and tcp both nil") - } -} - -// LocalAddr implements the ResponseWriter.LocalAddr method. -func (w *response) LocalAddr() net.Addr { - switch { - case w.udp != nil: - return w.udp.LocalAddr() - case w.tcp != nil: - return w.tcp.LocalAddr() - default: - panic("dns: internal error: udp and tcp both nil") - } -} - -// RemoteAddr implements the ResponseWriter.RemoteAddr method. -func (w *response) RemoteAddr() net.Addr { - switch { - case w.udpSession != nil: - return w.udpSession.RemoteAddr() - case w.pcSession != nil: - return w.pcSession - case w.tcp != nil: - return w.tcp.RemoteAddr() - default: - panic("dns: internal error: udpSession, pcSession and tcp are all nil") - } -} - -// TsigStatus implements the ResponseWriter.TsigStatus method. -func (w *response) TsigStatus() error { return w.tsigStatus } - -// TsigTimersOnly implements the ResponseWriter.TsigTimersOnly method. -func (w *response) TsigTimersOnly(b bool) { w.tsigTimersOnly = b } - -// Hijack implements the ResponseWriter.Hijack method. -func (w *response) Hijack() { w.hijacked = true } - -// Close implements the ResponseWriter.Close method -func (w *response) Close() error { - if w.closed { - return &Error{err: "connection already closed"} - } - w.closed = true - - switch { - case w.udp != nil: - // Can't close the udp conn, as that is actually the listener. - return nil - case w.tcp != nil: - return w.tcp.Close() - default: - panic("dns: internal error: udp and tcp both nil") - } -} - -// ConnectionState() implements the ConnectionStater.ConnectionState() interface. -func (w *response) ConnectionState() *tls.ConnectionState { - type tlsConnectionStater interface { - ConnectionState() tls.ConnectionState - } - if v, ok := w.tcp.(tlsConnectionStater); ok { - t := v.ConnectionState() - return &t - } - return nil -} diff --git a/vendor/github.com/miekg/dns/sig0.go b/vendor/github.com/miekg/dns/sig0.go deleted file mode 100644 index e781c9bb6c..0000000000 --- a/vendor/github.com/miekg/dns/sig0.go +++ /dev/null @@ -1,197 +0,0 @@ -package dns - -import ( - "crypto" - "crypto/ecdsa" - "crypto/rsa" - "encoding/binary" - "math/big" - "strings" - "time" -) - -// Sign signs a dns.Msg. It fills the signature with the appropriate data. -// The SIG record should have the SignerName, KeyTag, Algorithm, Inception -// and Expiration set. -func (rr *SIG) Sign(k crypto.Signer, m *Msg) ([]byte, error) { - if k == nil { - return nil, ErrPrivKey - } - if rr.KeyTag == 0 || rr.SignerName == "" || rr.Algorithm == 0 { - return nil, ErrKey - } - - rr.Hdr = RR_Header{Name: ".", Rrtype: TypeSIG, Class: ClassANY, Ttl: 0} - rr.OrigTtl, rr.TypeCovered, rr.Labels = 0, 0, 0 - - buf := make([]byte, m.Len()+Len(rr)) - mbuf, err := m.PackBuffer(buf) - if err != nil { - return nil, err - } - if &buf[0] != &mbuf[0] { - return nil, ErrBuf - } - off, err := PackRR(rr, buf, len(mbuf), nil, false) - if err != nil { - return nil, err - } - buf = buf[:off:cap(buf)] - - hash, ok := AlgorithmToHash[rr.Algorithm] - if !ok { - return nil, ErrAlg - } - - hasher := hash.New() - // Write SIG rdata - hasher.Write(buf[len(mbuf)+1+2+2+4+2:]) - // Write message - hasher.Write(buf[:len(mbuf)]) - - signature, err := sign(k, hasher.Sum(nil), hash, rr.Algorithm) - if err != nil { - return nil, err - } - - rr.Signature = toBase64(signature) - - buf = append(buf, signature...) - if len(buf) > int(^uint16(0)) { - return nil, ErrBuf - } - // Adjust sig data length - rdoff := len(mbuf) + 1 + 2 + 2 + 4 - rdlen := binary.BigEndian.Uint16(buf[rdoff:]) - rdlen += uint16(len(signature)) - binary.BigEndian.PutUint16(buf[rdoff:], rdlen) - // Adjust additional count - adc := binary.BigEndian.Uint16(buf[10:]) - adc++ - binary.BigEndian.PutUint16(buf[10:], adc) - return buf, nil -} - -// Verify validates the message buf using the key k. -// It's assumed that buf is a valid message from which rr was unpacked. -func (rr *SIG) Verify(k *KEY, buf []byte) error { - if k == nil { - return ErrKey - } - if rr.KeyTag == 0 || rr.SignerName == "" || rr.Algorithm == 0 { - return ErrKey - } - - var hash crypto.Hash - switch rr.Algorithm { - case RSASHA1: - hash = crypto.SHA1 - case RSASHA256, ECDSAP256SHA256: - hash = crypto.SHA256 - case ECDSAP384SHA384: - hash = crypto.SHA384 - case RSASHA512: - hash = crypto.SHA512 - default: - return ErrAlg - } - hasher := hash.New() - - buflen := len(buf) - qdc := binary.BigEndian.Uint16(buf[4:]) - anc := binary.BigEndian.Uint16(buf[6:]) - auc := binary.BigEndian.Uint16(buf[8:]) - adc := binary.BigEndian.Uint16(buf[10:]) - offset := headerSize - var err error - for i := uint16(0); i < qdc && offset < buflen; i++ { - _, offset, err = UnpackDomainName(buf, offset) - if err != nil { - return err - } - // Skip past Type and Class - offset += 2 + 2 - } - for i := uint16(1); i < anc+auc+adc && offset < buflen; i++ { - _, offset, err = UnpackDomainName(buf, offset) - if err != nil { - return err - } - // Skip past Type, Class and TTL - offset += 2 + 2 + 4 - if offset+1 >= buflen { - continue - } - rdlen := binary.BigEndian.Uint16(buf[offset:]) - offset += 2 - offset += int(rdlen) - } - if offset >= buflen { - return &Error{err: "overflowing unpacking signed message"} - } - - // offset should be just prior to SIG - bodyend := offset - // owner name SHOULD be root - _, offset, err = UnpackDomainName(buf, offset) - if err != nil { - return err - } - // Skip Type, Class, TTL, RDLen - offset += 2 + 2 + 4 + 2 - sigstart := offset - // Skip Type Covered, Algorithm, Labels, Original TTL - offset += 2 + 1 + 1 + 4 - if offset+4+4 >= buflen { - return &Error{err: "overflow unpacking signed message"} - } - expire := binary.BigEndian.Uint32(buf[offset:]) - offset += 4 - incept := binary.BigEndian.Uint32(buf[offset:]) - offset += 4 - now := uint32(time.Now().Unix()) - if now < incept || now > expire { - return ErrTime - } - // Skip key tag - offset += 2 - var signername string - signername, offset, err = UnpackDomainName(buf, offset) - if err != nil { - return err - } - // If key has come from the DNS name compression might - // have mangled the case of the name - if !strings.EqualFold(signername, k.Header().Name) { - return &Error{err: "signer name doesn't match key name"} - } - sigend := offset - hasher.Write(buf[sigstart:sigend]) - hasher.Write(buf[:10]) - hasher.Write([]byte{ - byte((adc - 1) << 8), - byte(adc - 1), - }) - hasher.Write(buf[12:bodyend]) - - hashed := hasher.Sum(nil) - sig := buf[sigend:] - switch k.Algorithm { - case RSASHA1, RSASHA256, RSASHA512: - pk := k.publicKeyRSA() - if pk != nil { - return rsa.VerifyPKCS1v15(pk, hash, hashed, sig) - } - case ECDSAP256SHA256, ECDSAP384SHA384: - pk := k.publicKeyECDSA() - r := new(big.Int).SetBytes(sig[:len(sig)/2]) - s := new(big.Int).SetBytes(sig[len(sig)/2:]) - if pk != nil { - if ecdsa.Verify(pk, hashed, r, s) { - return nil - } - return ErrSig - } - } - return ErrKeyAlg -} diff --git a/vendor/github.com/miekg/dns/singleinflight.go b/vendor/github.com/miekg/dns/singleinflight.go deleted file mode 100644 index febcc300fe..0000000000 --- a/vendor/github.com/miekg/dns/singleinflight.go +++ /dev/null @@ -1,61 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Adapted for dns package usage by Miek Gieben. - -package dns - -import "sync" -import "time" - -// call is an in-flight or completed singleflight.Do call -type call struct { - wg sync.WaitGroup - val *Msg - rtt time.Duration - err error - dups int -} - -// singleflight represents a class of work and forms a namespace in -// which units of work can be executed with duplicate suppression. -type singleflight struct { - sync.Mutex // protects m - m map[string]*call // lazily initialized - - dontDeleteForTesting bool // this is only to be used by TestConcurrentExchanges -} - -// Do executes and returns the results of the given function, making -// sure that only one execution is in-flight for a given key at a -// time. If a duplicate comes in, the duplicate caller waits for the -// original to complete and receives the same results. -// The return value shared indicates whether v was given to multiple callers. -func (g *singleflight) Do(key string, fn func() (*Msg, time.Duration, error)) (v *Msg, rtt time.Duration, err error, shared bool) { - g.Lock() - if g.m == nil { - g.m = make(map[string]*call) - } - if c, ok := g.m[key]; ok { - c.dups++ - g.Unlock() - c.wg.Wait() - return c.val, c.rtt, c.err, true - } - c := new(call) - c.wg.Add(1) - g.m[key] = c - g.Unlock() - - c.val, c.rtt, c.err = fn() - c.wg.Done() - - if !g.dontDeleteForTesting { - g.Lock() - delete(g.m, key) - g.Unlock() - } - - return c.val, c.rtt, c.err, c.dups > 0 -} diff --git a/vendor/github.com/miekg/dns/smimea.go b/vendor/github.com/miekg/dns/smimea.go deleted file mode 100644 index 89f09f0d10..0000000000 --- a/vendor/github.com/miekg/dns/smimea.go +++ /dev/null @@ -1,44 +0,0 @@ -package dns - -import ( - "crypto/sha256" - "crypto/x509" - "encoding/hex" -) - -// Sign creates a SMIMEA record from an SSL certificate. -func (r *SMIMEA) Sign(usage, selector, matchingType int, cert *x509.Certificate) (err error) { - r.Hdr.Rrtype = TypeSMIMEA - r.Usage = uint8(usage) - r.Selector = uint8(selector) - r.MatchingType = uint8(matchingType) - - r.Certificate, err = CertificateToDANE(r.Selector, r.MatchingType, cert) - return err -} - -// Verify verifies a SMIMEA record against an SSL certificate. If it is OK -// a nil error is returned. -func (r *SMIMEA) Verify(cert *x509.Certificate) error { - c, err := CertificateToDANE(r.Selector, r.MatchingType, cert) - if err != nil { - return err // Not also ErrSig? - } - if r.Certificate == c { - return nil - } - return ErrSig // ErrSig, really? -} - -// SMIMEAName returns the ownername of a SMIMEA resource record as per the -// format specified in RFC 'draft-ietf-dane-smime-12' Section 2 and 3 -func SMIMEAName(email, domain string) (string, error) { - hasher := sha256.New() - hasher.Write([]byte(email)) - - // RFC Section 3: "The local-part is hashed using the SHA2-256 - // algorithm with the hash truncated to 28 octets and - // represented in its hexadecimal representation to become the - // left-most label in the prepared domain name" - return hex.EncodeToString(hasher.Sum(nil)[:28]) + "." + "_smimecert." + domain, nil -} diff --git a/vendor/github.com/miekg/dns/svcb.go b/vendor/github.com/miekg/dns/svcb.go deleted file mode 100644 index 3344253c2b..0000000000 --- a/vendor/github.com/miekg/dns/svcb.go +++ /dev/null @@ -1,755 +0,0 @@ -package dns - -import ( - "bytes" - "encoding/binary" - "errors" - "net" - "sort" - "strconv" - "strings" -) - -// SVCBKey is the type of the keys used in the SVCB RR. -type SVCBKey uint16 - -// Keys defined in draft-ietf-dnsop-svcb-https-01 Section 12.3.2. -const ( - SVCB_MANDATORY SVCBKey = 0 - SVCB_ALPN SVCBKey = 1 - SVCB_NO_DEFAULT_ALPN SVCBKey = 2 - SVCB_PORT SVCBKey = 3 - SVCB_IPV4HINT SVCBKey = 4 - SVCB_ECHCONFIG SVCBKey = 5 - SVCB_IPV6HINT SVCBKey = 6 - svcb_RESERVED SVCBKey = 65535 -) - -var svcbKeyToStringMap = map[SVCBKey]string{ - SVCB_MANDATORY: "mandatory", - SVCB_ALPN: "alpn", - SVCB_NO_DEFAULT_ALPN: "no-default-alpn", - SVCB_PORT: "port", - SVCB_IPV4HINT: "ipv4hint", - SVCB_ECHCONFIG: "echconfig", - SVCB_IPV6HINT: "ipv6hint", -} - -var svcbStringToKeyMap = reverseSVCBKeyMap(svcbKeyToStringMap) - -func reverseSVCBKeyMap(m map[SVCBKey]string) map[string]SVCBKey { - n := make(map[string]SVCBKey, len(m)) - for u, s := range m { - n[s] = u - } - return n -} - -// String takes the numerical code of an SVCB key and returns its name. -// Returns an empty string for reserved keys. -// Accepts unassigned keys as well as experimental/private keys. -func (key SVCBKey) String() string { - if x := svcbKeyToStringMap[key]; x != "" { - return x - } - if key == svcb_RESERVED { - return "" - } - return "key" + strconv.FormatUint(uint64(key), 10) -} - -// svcbStringToKey returns the numerical code of an SVCB key. -// Returns svcb_RESERVED for reserved/invalid keys. -// Accepts unassigned keys as well as experimental/private keys. -func svcbStringToKey(s string) SVCBKey { - if strings.HasPrefix(s, "key") { - a, err := strconv.ParseUint(s[3:], 10, 16) - // no leading zeros - // key shouldn't be registered - if err != nil || a == 65535 || s[3] == '0' || svcbKeyToStringMap[SVCBKey(a)] != "" { - return svcb_RESERVED - } - return SVCBKey(a) - } - if key, ok := svcbStringToKeyMap[s]; ok { - return key - } - return svcb_RESERVED -} - -func (rr *SVCB) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{l.token, "bad SVCB priority", l} - } - rr.Priority = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Target = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{l.token, "bad SVCB Target", l} - } - rr.Target = name - - // Values (if any) - l, _ = c.Next() - var xs []SVCBKeyValue - // Helps require whitespace between pairs. - // Prevents key1000="a"key1001=... - canHaveNextKey := true - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zString: - if !canHaveNextKey { - // The key we can now read was probably meant to be - // a part of the last value. - return &ParseError{l.token, "bad SVCB value quotation", l} - } - - // In key=value pairs, value does not have to be quoted unless value - // contains whitespace. And keys don't need to have values. - // Similarly, keys with an equality signs after them don't need values. - // l.token includes at least up to the first equality sign. - idx := strings.IndexByte(l.token, '=') - var key, value string - if idx < 0 { - // Key with no value and no equality sign - key = l.token - } else if idx == 0 { - return &ParseError{l.token, "bad SVCB key", l} - } else { - key, value = l.token[:idx], l.token[idx+1:] - - if value == "" { - // We have a key and an equality sign. Maybe we have nothing - // after "=" or we have a double quote. - l, _ = c.Next() - if l.value == zQuote { - // Only needed when value ends with double quotes. - // Any value starting with zQuote ends with it. - canHaveNextKey = false - - l, _ = c.Next() - switch l.value { - case zString: - // We have a value in double quotes. - value = l.token - l, _ = c.Next() - if l.value != zQuote { - return &ParseError{l.token, "SVCB unterminated value", l} - } - case zQuote: - // There's nothing in double quotes. - default: - return &ParseError{l.token, "bad SVCB value", l} - } - } - } - } - kv := makeSVCBKeyValue(svcbStringToKey(key)) - if kv == nil { - return &ParseError{l.token, "bad SVCB key", l} - } - if err := kv.parse(value); err != nil { - return &ParseError{l.token, err.Error(), l} - } - xs = append(xs, kv) - case zQuote: - return &ParseError{l.token, "SVCB key can't contain double quotes", l} - case zBlank: - canHaveNextKey = true - default: - return &ParseError{l.token, "bad SVCB values", l} - } - l, _ = c.Next() - } - rr.Value = xs - if rr.Priority == 0 && len(xs) > 0 { - return &ParseError{l.token, "SVCB aliasform can't have values", l} - } - return nil -} - -// makeSVCBKeyValue returns an SVCBKeyValue struct with the key or nil for reserved keys. -func makeSVCBKeyValue(key SVCBKey) SVCBKeyValue { - switch key { - case SVCB_MANDATORY: - return new(SVCBMandatory) - case SVCB_ALPN: - return new(SVCBAlpn) - case SVCB_NO_DEFAULT_ALPN: - return new(SVCBNoDefaultAlpn) - case SVCB_PORT: - return new(SVCBPort) - case SVCB_IPV4HINT: - return new(SVCBIPv4Hint) - case SVCB_ECHCONFIG: - return new(SVCBECHConfig) - case SVCB_IPV6HINT: - return new(SVCBIPv6Hint) - case svcb_RESERVED: - return nil - default: - e := new(SVCBLocal) - e.KeyCode = key - return e - } -} - -// SVCB RR. See RFC xxxx (https://tools.ietf.org/html/draft-ietf-dnsop-svcb-https-01). -type SVCB struct { - Hdr RR_Header - Priority uint16 - Target string `dns:"domain-name"` - Value []SVCBKeyValue `dns:"pairs"` // Value must be empty if Priority is zero. -} - -// HTTPS RR. Everything valid for SVCB applies to HTTPS as well. -// Except that the HTTPS record is intended for use with the HTTP and HTTPS protocols. -type HTTPS struct { - SVCB -} - -func (rr *HTTPS) String() string { - return rr.SVCB.String() -} - -func (rr *HTTPS) parse(c *zlexer, o string) *ParseError { - return rr.SVCB.parse(c, o) -} - -// SVCBKeyValue defines a key=value pair for the SVCB RR type. -// An SVCB RR can have multiple SVCBKeyValues appended to it. -type SVCBKeyValue interface { - Key() SVCBKey // Key returns the numerical key code. - pack() ([]byte, error) // pack returns the encoded value. - unpack([]byte) error // unpack sets the value. - String() string // String returns the string representation of the value. - parse(string) error // parse sets the value to the given string representation of the value. - copy() SVCBKeyValue // copy returns a deep-copy of the pair. - len() int // len returns the length of value in the wire format. -} - -// SVCBMandatory pair adds to required keys that must be interpreted for the RR -// to be functional. -// Basic use pattern for creating a mandatory option: -// -// s := &dns.SVCB{Hdr: dns.RR_Header{Name: ".", Rrtype: dns.TypeSVCB, Class: dns.ClassINET}} -// e := new(dns.SVCBMandatory) -// e.Code = []uint16{65403} -// s.Value = append(s.Value, e) -type SVCBMandatory struct { - Code []SVCBKey // Must not include mandatory -} - -func (*SVCBMandatory) Key() SVCBKey { return SVCB_MANDATORY } - -func (s *SVCBMandatory) String() string { - str := make([]string, len(s.Code)) - for i, e := range s.Code { - str[i] = e.String() - } - return strings.Join(str, ",") -} - -func (s *SVCBMandatory) pack() ([]byte, error) { - codes := append([]SVCBKey(nil), s.Code...) - sort.Slice(codes, func(i, j int) bool { - return codes[i] < codes[j] - }) - b := make([]byte, 2*len(codes)) - for i, e := range codes { - binary.BigEndian.PutUint16(b[2*i:], uint16(e)) - } - return b, nil -} - -func (s *SVCBMandatory) unpack(b []byte) error { - if len(b)%2 != 0 { - return errors.New("dns: svcbmandatory: value length is not a multiple of 2") - } - codes := make([]SVCBKey, 0, len(b)/2) - for i := 0; i < len(b); i += 2 { - // We assume strictly increasing order. - codes = append(codes, SVCBKey(binary.BigEndian.Uint16(b[i:]))) - } - s.Code = codes - return nil -} - -func (s *SVCBMandatory) parse(b string) error { - str := strings.Split(b, ",") - codes := make([]SVCBKey, 0, len(str)) - for _, e := range str { - codes = append(codes, svcbStringToKey(e)) - } - s.Code = codes - return nil -} - -func (s *SVCBMandatory) len() int { - return 2 * len(s.Code) -} - -func (s *SVCBMandatory) copy() SVCBKeyValue { - return &SVCBMandatory{ - append([]SVCBKey(nil), s.Code...), - } -} - -// SVCBAlpn pair is used to list supported connection protocols. -// Protocol ids can be found at: -// https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids -// Basic use pattern for creating an alpn option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBAlpn) -// e.Alpn = []string{"h2", "http/1.1"} -// h.Value = append(o.Value, e) -type SVCBAlpn struct { - Alpn []string -} - -func (*SVCBAlpn) Key() SVCBKey { return SVCB_ALPN } -func (s *SVCBAlpn) String() string { return strings.Join(s.Alpn, ",") } - -func (s *SVCBAlpn) pack() ([]byte, error) { - // Liberally estimate the size of an alpn as 10 octets - b := make([]byte, 0, 10*len(s.Alpn)) - for _, e := range s.Alpn { - if e == "" { - return nil, errors.New("dns: svcbalpn: empty alpn-id") - } - if len(e) > 255 { - return nil, errors.New("dns: svcbalpn: alpn-id too long") - } - b = append(b, byte(len(e))) - b = append(b, e...) - } - return b, nil -} - -func (s *SVCBAlpn) unpack(b []byte) error { - // Estimate the size of the smallest alpn as 4 bytes - alpn := make([]string, 0, len(b)/4) - for i := 0; i < len(b); { - length := int(b[i]) - i++ - if i+length > len(b) { - return errors.New("dns: svcbalpn: alpn array overflowing") - } - alpn = append(alpn, string(b[i:i+length])) - i += length - } - s.Alpn = alpn - return nil -} - -func (s *SVCBAlpn) parse(b string) error { - s.Alpn = strings.Split(b, ",") - return nil -} - -func (s *SVCBAlpn) len() int { - var l int - for _, e := range s.Alpn { - l += 1 + len(e) - } - return l -} - -func (s *SVCBAlpn) copy() SVCBKeyValue { - return &SVCBAlpn{ - append([]string(nil), s.Alpn...), - } -} - -// SVCBNoDefaultAlpn pair signifies no support for default connection protocols. -// Basic use pattern for creating a no-default-alpn option: -// -// s := &dns.SVCB{Hdr: dns.RR_Header{Name: ".", Rrtype: dns.TypeSVCB, Class: dns.ClassINET}} -// e := new(dns.SVCBNoDefaultAlpn) -// s.Value = append(s.Value, e) -type SVCBNoDefaultAlpn struct{} - -func (*SVCBNoDefaultAlpn) Key() SVCBKey { return SVCB_NO_DEFAULT_ALPN } -func (*SVCBNoDefaultAlpn) copy() SVCBKeyValue { return &SVCBNoDefaultAlpn{} } -func (*SVCBNoDefaultAlpn) pack() ([]byte, error) { return []byte{}, nil } -func (*SVCBNoDefaultAlpn) String() string { return "" } -func (*SVCBNoDefaultAlpn) len() int { return 0 } - -func (*SVCBNoDefaultAlpn) unpack(b []byte) error { - if len(b) != 0 { - return errors.New("dns: svcbnodefaultalpn: no_default_alpn must have no value") - } - return nil -} - -func (*SVCBNoDefaultAlpn) parse(b string) error { - if b != "" { - return errors.New("dns: svcbnodefaultalpn: no_default_alpn must have no value") - } - return nil -} - -// SVCBPort pair defines the port for connection. -// Basic use pattern for creating a port option: -// -// s := &dns.SVCB{Hdr: dns.RR_Header{Name: ".", Rrtype: dns.TypeSVCB, Class: dns.ClassINET}} -// e := new(dns.SVCBPort) -// e.Port = 80 -// s.Value = append(s.Value, e) -type SVCBPort struct { - Port uint16 -} - -func (*SVCBPort) Key() SVCBKey { return SVCB_PORT } -func (*SVCBPort) len() int { return 2 } -func (s *SVCBPort) String() string { return strconv.FormatUint(uint64(s.Port), 10) } -func (s *SVCBPort) copy() SVCBKeyValue { return &SVCBPort{s.Port} } - -func (s *SVCBPort) unpack(b []byte) error { - if len(b) != 2 { - return errors.New("dns: svcbport: port length is not exactly 2 octets") - } - s.Port = binary.BigEndian.Uint16(b) - return nil -} - -func (s *SVCBPort) pack() ([]byte, error) { - b := make([]byte, 2) - binary.BigEndian.PutUint16(b, s.Port) - return b, nil -} - -func (s *SVCBPort) parse(b string) error { - port, err := strconv.ParseUint(b, 10, 16) - if err != nil { - return errors.New("dns: svcbport: port out of range") - } - s.Port = uint16(port) - return nil -} - -// SVCBIPv4Hint pair suggests an IPv4 address which may be used to open connections -// if A and AAAA record responses for SVCB's Target domain haven't been received. -// In that case, optionally, A and AAAA requests can be made, after which the connection -// to the hinted IP address may be terminated and a new connection may be opened. -// Basic use pattern for creating an ipv4hint option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBIPv4Hint) -// e.Hint = []net.IP{net.IPv4(1,1,1,1).To4()} -// -// Or -// -// e.Hint = []net.IP{net.ParseIP("1.1.1.1").To4()} -// h.Value = append(h.Value, e) -type SVCBIPv4Hint struct { - Hint []net.IP -} - -func (*SVCBIPv4Hint) Key() SVCBKey { return SVCB_IPV4HINT } -func (s *SVCBIPv4Hint) len() int { return 4 * len(s.Hint) } - -func (s *SVCBIPv4Hint) pack() ([]byte, error) { - b := make([]byte, 0, 4*len(s.Hint)) - for _, e := range s.Hint { - x := e.To4() - if x == nil { - return nil, errors.New("dns: svcbipv4hint: expected ipv4, hint is ipv6") - } - b = append(b, x...) - } - return b, nil -} - -func (s *SVCBIPv4Hint) unpack(b []byte) error { - if len(b) == 0 || len(b)%4 != 0 { - return errors.New("dns: svcbipv4hint: ipv4 address byte array length is not a multiple of 4") - } - x := make([]net.IP, 0, len(b)/4) - for i := 0; i < len(b); i += 4 { - x = append(x, net.IP(b[i:i+4])) - } - s.Hint = x - return nil -} - -func (s *SVCBIPv4Hint) String() string { - str := make([]string, len(s.Hint)) - for i, e := range s.Hint { - x := e.To4() - if x == nil { - return "<nil>" - } - str[i] = x.String() - } - return strings.Join(str, ",") -} - -func (s *SVCBIPv4Hint) parse(b string) error { - if strings.Contains(b, ":") { - return errors.New("dns: svcbipv4hint: expected ipv4, got ipv6") - } - str := strings.Split(b, ",") - dst := make([]net.IP, len(str)) - for i, e := range str { - ip := net.ParseIP(e).To4() - if ip == nil { - return errors.New("dns: svcbipv4hint: bad ip") - } - dst[i] = ip - } - s.Hint = dst - return nil -} - -func (s *SVCBIPv4Hint) copy() SVCBKeyValue { - hint := make([]net.IP, len(s.Hint)) - for i, ip := range s.Hint { - hint[i] = copyIP(ip) - } - - return &SVCBIPv4Hint{ - Hint: hint, - } -} - -// SVCBECHConfig pair contains the ECHConfig structure defined in draft-ietf-tls-esni [RFC xxxx]. -// Basic use pattern for creating an echconfig option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBECHConfig) -// e.ECH = []byte{0xfe, 0x08, ...} -// h.Value = append(h.Value, e) -type SVCBECHConfig struct { - ECH []byte -} - -func (*SVCBECHConfig) Key() SVCBKey { return SVCB_ECHCONFIG } -func (s *SVCBECHConfig) String() string { return toBase64(s.ECH) } -func (s *SVCBECHConfig) len() int { return len(s.ECH) } - -func (s *SVCBECHConfig) pack() ([]byte, error) { - return append([]byte(nil), s.ECH...), nil -} - -func (s *SVCBECHConfig) copy() SVCBKeyValue { - return &SVCBECHConfig{ - append([]byte(nil), s.ECH...), - } -} - -func (s *SVCBECHConfig) unpack(b []byte) error { - s.ECH = append([]byte(nil), b...) - return nil -} -func (s *SVCBECHConfig) parse(b string) error { - x, err := fromBase64([]byte(b)) - if err != nil { - return errors.New("dns: svcbechconfig: bad base64 echconfig") - } - s.ECH = x - return nil -} - -// SVCBIPv6Hint pair suggests an IPv6 address which may be used to open connections -// if A and AAAA record responses for SVCB's Target domain haven't been received. -// In that case, optionally, A and AAAA requests can be made, after which the -// connection to the hinted IP address may be terminated and a new connection may be opened. -// Basic use pattern for creating an ipv6hint option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBIPv6Hint) -// e.Hint = []net.IP{net.ParseIP("2001:db8::1")} -// h.Value = append(h.Value, e) -type SVCBIPv6Hint struct { - Hint []net.IP -} - -func (*SVCBIPv6Hint) Key() SVCBKey { return SVCB_IPV6HINT } -func (s *SVCBIPv6Hint) len() int { return 16 * len(s.Hint) } - -func (s *SVCBIPv6Hint) pack() ([]byte, error) { - b := make([]byte, 0, 16*len(s.Hint)) - for _, e := range s.Hint { - if len(e) != net.IPv6len || e.To4() != nil { - return nil, errors.New("dns: svcbipv6hint: expected ipv6, hint is ipv4") - } - b = append(b, e...) - } - return b, nil -} - -func (s *SVCBIPv6Hint) unpack(b []byte) error { - if len(b) == 0 || len(b)%16 != 0 { - return errors.New("dns: svcbipv6hint: ipv6 address byte array length not a multiple of 16") - } - x := make([]net.IP, 0, len(b)/16) - for i := 0; i < len(b); i += 16 { - ip := net.IP(b[i : i+16]) - if ip.To4() != nil { - return errors.New("dns: svcbipv6hint: expected ipv6, got ipv4") - } - x = append(x, ip) - } - s.Hint = x - return nil -} - -func (s *SVCBIPv6Hint) String() string { - str := make([]string, len(s.Hint)) - for i, e := range s.Hint { - if x := e.To4(); x != nil { - return "<nil>" - } - str[i] = e.String() - } - return strings.Join(str, ",") -} - -func (s *SVCBIPv6Hint) parse(b string) error { - if strings.Contains(b, ".") { - return errors.New("dns: svcbipv6hint: expected ipv6, got ipv4") - } - str := strings.Split(b, ",") - dst := make([]net.IP, len(str)) - for i, e := range str { - ip := net.ParseIP(e) - if ip == nil { - return errors.New("dns: svcbipv6hint: bad ip") - } - dst[i] = ip - } - s.Hint = dst - return nil -} - -func (s *SVCBIPv6Hint) copy() SVCBKeyValue { - hint := make([]net.IP, len(s.Hint)) - for i, ip := range s.Hint { - hint[i] = copyIP(ip) - } - - return &SVCBIPv6Hint{ - Hint: hint, - } -} - -// SVCBLocal pair is intended for experimental/private use. The key is recommended -// to be in the range [SVCB_PRIVATE_LOWER, SVCB_PRIVATE_UPPER]. -// Basic use pattern for creating a keyNNNNN option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBLocal) -// e.KeyCode = 65400 -// e.Data = []byte("abc") -// h.Value = append(h.Value, e) -type SVCBLocal struct { - KeyCode SVCBKey // Never 65535 or any assigned keys. - Data []byte // All byte sequences are allowed. -} - -func (s *SVCBLocal) Key() SVCBKey { return s.KeyCode } -func (s *SVCBLocal) pack() ([]byte, error) { return append([]byte(nil), s.Data...), nil } -func (s *SVCBLocal) len() int { return len(s.Data) } - -func (s *SVCBLocal) unpack(b []byte) error { - s.Data = append([]byte(nil), b...) - return nil -} - -func (s *SVCBLocal) String() string { - var str strings.Builder - str.Grow(4 * len(s.Data)) - for _, e := range s.Data { - if ' ' <= e && e <= '~' { - switch e { - case '"', ';', ' ', '\\': - str.WriteByte('\\') - str.WriteByte(e) - default: - str.WriteByte(e) - } - } else { - str.WriteString(escapeByte(e)) - } - } - return str.String() -} - -func (s *SVCBLocal) parse(b string) error { - data := make([]byte, 0, len(b)) - for i := 0; i < len(b); { - if b[i] != '\\' { - data = append(data, b[i]) - i++ - continue - } - if i+1 == len(b) { - return errors.New("dns: svcblocal: svcb private/experimental key escape unterminated") - } - if isDigit(b[i+1]) { - if i+3 < len(b) && isDigit(b[i+2]) && isDigit(b[i+3]) { - a, err := strconv.ParseUint(b[i+1:i+4], 10, 8) - if err == nil { - i += 4 - data = append(data, byte(a)) - continue - } - } - return errors.New("dns: svcblocal: svcb private/experimental key bad escaped octet") - } else { - data = append(data, b[i+1]) - i += 2 - } - } - s.Data = data - return nil -} - -func (s *SVCBLocal) copy() SVCBKeyValue { - return &SVCBLocal{s.KeyCode, - append([]byte(nil), s.Data...), - } -} - -func (rr *SVCB) String() string { - s := rr.Hdr.String() + - strconv.Itoa(int(rr.Priority)) + " " + - sprintName(rr.Target) - for _, e := range rr.Value { - s += " " + e.Key().String() + "=\"" + e.String() + "\"" - } - return s -} - -// areSVCBPairArraysEqual checks if SVCBKeyValue arrays are equal after sorting their -// copies. arrA and arrB have equal lengths, otherwise zduplicate.go wouldn't call this function. -func areSVCBPairArraysEqual(a []SVCBKeyValue, b []SVCBKeyValue) bool { - a = append([]SVCBKeyValue(nil), a...) - b = append([]SVCBKeyValue(nil), b...) - sort.Slice(a, func(i, j int) bool { return a[i].Key() < a[j].Key() }) - sort.Slice(b, func(i, j int) bool { return b[i].Key() < b[j].Key() }) - for i, e := range a { - if e.Key() != b[i].Key() { - return false - } - b1, err1 := e.pack() - b2, err2 := b[i].pack() - if err1 != nil || err2 != nil || !bytes.Equal(b1, b2) { - return false - } - } - return true -} diff --git a/vendor/github.com/miekg/dns/tlsa.go b/vendor/github.com/miekg/dns/tlsa.go deleted file mode 100644 index 4e07983b97..0000000000 --- a/vendor/github.com/miekg/dns/tlsa.go +++ /dev/null @@ -1,44 +0,0 @@ -package dns - -import ( - "crypto/x509" - "net" - "strconv" -) - -// Sign creates a TLSA record from an SSL certificate. -func (r *TLSA) Sign(usage, selector, matchingType int, cert *x509.Certificate) (err error) { - r.Hdr.Rrtype = TypeTLSA - r.Usage = uint8(usage) - r.Selector = uint8(selector) - r.MatchingType = uint8(matchingType) - - r.Certificate, err = CertificateToDANE(r.Selector, r.MatchingType, cert) - return err -} - -// Verify verifies a TLSA record against an SSL certificate. If it is OK -// a nil error is returned. -func (r *TLSA) Verify(cert *x509.Certificate) error { - c, err := CertificateToDANE(r.Selector, r.MatchingType, cert) - if err != nil { - return err // Not also ErrSig? - } - if r.Certificate == c { - return nil - } - return ErrSig // ErrSig, really? -} - -// TLSAName returns the ownername of a TLSA resource record as per the -// rules specified in RFC 6698, Section 3. -func TLSAName(name, service, network string) (string, error) { - if !IsFqdn(name) { - return "", ErrFqdn - } - p, err := net.LookupPort(network, service) - if err != nil { - return "", err - } - return "_" + strconv.Itoa(p) + "._" + network + "." + name, nil -} diff --git a/vendor/github.com/miekg/dns/tsig.go b/vendor/github.com/miekg/dns/tsig.go deleted file mode 100644 index b49562d847..0000000000 --- a/vendor/github.com/miekg/dns/tsig.go +++ /dev/null @@ -1,429 +0,0 @@ -package dns - -import ( - "crypto/hmac" - "crypto/sha1" - "crypto/sha256" - "crypto/sha512" - "encoding/binary" - "encoding/hex" - "hash" - "strconv" - "strings" - "time" -) - -// HMAC hashing codes. These are transmitted as domain names. -const ( - HmacSHA1 = "hmac-sha1." - HmacSHA224 = "hmac-sha224." - HmacSHA256 = "hmac-sha256." - HmacSHA384 = "hmac-sha384." - HmacSHA512 = "hmac-sha512." - - HmacMD5 = "hmac-md5.sig-alg.reg.int." // Deprecated: HmacMD5 is no longer supported. -) - -// TsigProvider provides the API to plug-in a custom TSIG implementation. -type TsigProvider interface { - // Generate is passed the DNS message to be signed and the partial TSIG RR. It returns the signature and nil, otherwise an error. - Generate(msg []byte, t *TSIG) ([]byte, error) - // Verify is passed the DNS message to be verified and the TSIG RR. If the signature is valid it will return nil, otherwise an error. - Verify(msg []byte, t *TSIG) error -} - -type tsigHMACProvider string - -func (key tsigHMACProvider) Generate(msg []byte, t *TSIG) ([]byte, error) { - // If we barf here, the caller is to blame - rawsecret, err := fromBase64([]byte(key)) - if err != nil { - return nil, err - } - var h hash.Hash - switch CanonicalName(t.Algorithm) { - case HmacSHA1: - h = hmac.New(sha1.New, rawsecret) - case HmacSHA224: - h = hmac.New(sha256.New224, rawsecret) - case HmacSHA256: - h = hmac.New(sha256.New, rawsecret) - case HmacSHA384: - h = hmac.New(sha512.New384, rawsecret) - case HmacSHA512: - h = hmac.New(sha512.New, rawsecret) - default: - return nil, ErrKeyAlg - } - h.Write(msg) - return h.Sum(nil), nil -} - -func (key tsigHMACProvider) Verify(msg []byte, t *TSIG) error { - b, err := key.Generate(msg, t) - if err != nil { - return err - } - mac, err := hex.DecodeString(t.MAC) - if err != nil { - return err - } - if !hmac.Equal(b, mac) { - return ErrSig - } - return nil -} - -// TSIG is the RR the holds the transaction signature of a message. -// See RFC 2845 and RFC 4635. -type TSIG struct { - Hdr RR_Header - Algorithm string `dns:"domain-name"` - TimeSigned uint64 `dns:"uint48"` - Fudge uint16 - MACSize uint16 - MAC string `dns:"size-hex:MACSize"` - OrigId uint16 - Error uint16 - OtherLen uint16 - OtherData string `dns:"size-hex:OtherLen"` -} - -// TSIG has no official presentation format, but this will suffice. - -func (rr *TSIG) String() string { - s := "\n;; TSIG PSEUDOSECTION:\n; " // add another semi-colon to signify TSIG does not have a presentation format - s += rr.Hdr.String() + - " " + rr.Algorithm + - " " + tsigTimeToString(rr.TimeSigned) + - " " + strconv.Itoa(int(rr.Fudge)) + - " " + strconv.Itoa(int(rr.MACSize)) + - " " + strings.ToUpper(rr.MAC) + - " " + strconv.Itoa(int(rr.OrigId)) + - " " + strconv.Itoa(int(rr.Error)) + // BIND prints NOERROR - " " + strconv.Itoa(int(rr.OtherLen)) + - " " + rr.OtherData - return s -} - -func (*TSIG) parse(c *zlexer, origin string) *ParseError { - return &ParseError{err: "TSIG records do not have a presentation format"} -} - -// The following values must be put in wireformat, so that the MAC can be calculated. -// RFC 2845, section 3.4.2. TSIG Variables. -type tsigWireFmt struct { - // From RR_Header - Name string `dns:"domain-name"` - Class uint16 - Ttl uint32 - // Rdata of the TSIG - Algorithm string `dns:"domain-name"` - TimeSigned uint64 `dns:"uint48"` - Fudge uint16 - // MACSize, MAC and OrigId excluded - Error uint16 - OtherLen uint16 - OtherData string `dns:"size-hex:OtherLen"` -} - -// If we have the MAC use this type to convert it to wiredata. Section 3.4.3. Request MAC -type macWireFmt struct { - MACSize uint16 - MAC string `dns:"size-hex:MACSize"` -} - -// 3.3. Time values used in TSIG calculations -type timerWireFmt struct { - TimeSigned uint64 `dns:"uint48"` - Fudge uint16 -} - -// TsigGenerate fills out the TSIG record attached to the message. -// The message should contain -// a "stub" TSIG RR with the algorithm, key name (owner name of the RR), -// time fudge (defaults to 300 seconds) and the current time -// The TSIG MAC is saved in that Tsig RR. -// When TsigGenerate is called for the first time requestMAC is set to the empty string and -// timersOnly is false. -// If something goes wrong an error is returned, otherwise it is nil. -func TsigGenerate(m *Msg, secret, requestMAC string, timersOnly bool) ([]byte, string, error) { - return tsigGenerateProvider(m, tsigHMACProvider(secret), requestMAC, timersOnly) -} - -func tsigGenerateProvider(m *Msg, provider TsigProvider, requestMAC string, timersOnly bool) ([]byte, string, error) { - if m.IsTsig() == nil { - panic("dns: TSIG not last RR in additional") - } - - rr := m.Extra[len(m.Extra)-1].(*TSIG) - m.Extra = m.Extra[0 : len(m.Extra)-1] // kill the TSIG from the msg - mbuf, err := m.Pack() - if err != nil { - return nil, "", err - } - buf, err := tsigBuffer(mbuf, rr, requestMAC, timersOnly) - if err != nil { - return nil, "", err - } - - t := new(TSIG) - // Copy all TSIG fields except MAC and its size, which are filled using the computed digest. - *t = *rr - mac, err := provider.Generate(buf, rr) - if err != nil { - return nil, "", err - } - t.MAC = hex.EncodeToString(mac) - t.MACSize = uint16(len(t.MAC) / 2) // Size is half! - - tbuf := make([]byte, Len(t)) - off, err := PackRR(t, tbuf, 0, nil, false) - if err != nil { - return nil, "", err - } - mbuf = append(mbuf, tbuf[:off]...) - // Update the ArCount directly in the buffer. - binary.BigEndian.PutUint16(mbuf[10:], uint16(len(m.Extra)+1)) - - return mbuf, t.MAC, nil -} - -// TsigVerify verifies the TSIG on a message. -// If the signature does not validate err contains the -// error, otherwise it is nil. -func TsigVerify(msg []byte, secret, requestMAC string, timersOnly bool) error { - return tsigVerify(msg, tsigHMACProvider(secret), requestMAC, timersOnly, uint64(time.Now().Unix())) -} - -func tsigVerifyProvider(msg []byte, provider TsigProvider, requestMAC string, timersOnly bool) error { - return tsigVerify(msg, provider, requestMAC, timersOnly, uint64(time.Now().Unix())) -} - -// actual implementation of TsigVerify, taking the current time ('now') as a parameter for the convenience of tests. -func tsigVerify(msg []byte, provider TsigProvider, requestMAC string, timersOnly bool, now uint64) error { - // Strip the TSIG from the incoming msg - stripped, tsig, err := stripTsig(msg) - if err != nil { - return err - } - - buf, err := tsigBuffer(stripped, tsig, requestMAC, timersOnly) - if err != nil { - return err - } - - if err := provider.Verify(buf, tsig); err != nil { - return err - } - - // Fudge factor works both ways. A message can arrive before it was signed because - // of clock skew. - // We check this after verifying the signature, following draft-ietf-dnsop-rfc2845bis - // instead of RFC2845, in order to prevent a security vulnerability as reported in CVE-2017-3142/3143. - ti := now - tsig.TimeSigned - if now < tsig.TimeSigned { - ti = tsig.TimeSigned - now - } - if uint64(tsig.Fudge) < ti { - return ErrTime - } - - return nil -} - -// Create a wiredata buffer for the MAC calculation. -func tsigBuffer(msgbuf []byte, rr *TSIG, requestMAC string, timersOnly bool) ([]byte, error) { - var buf []byte - if rr.TimeSigned == 0 { - rr.TimeSigned = uint64(time.Now().Unix()) - } - if rr.Fudge == 0 { - rr.Fudge = 300 // Standard (RFC) default. - } - - // Replace message ID in header with original ID from TSIG - binary.BigEndian.PutUint16(msgbuf[0:2], rr.OrigId) - - if requestMAC != "" { - m := new(macWireFmt) - m.MACSize = uint16(len(requestMAC) / 2) - m.MAC = requestMAC - buf = make([]byte, len(requestMAC)) // long enough - n, err := packMacWire(m, buf) - if err != nil { - return nil, err - } - buf = buf[:n] - } - - tsigvar := make([]byte, DefaultMsgSize) - if timersOnly { - tsig := new(timerWireFmt) - tsig.TimeSigned = rr.TimeSigned - tsig.Fudge = rr.Fudge - n, err := packTimerWire(tsig, tsigvar) - if err != nil { - return nil, err - } - tsigvar = tsigvar[:n] - } else { - tsig := new(tsigWireFmt) - tsig.Name = CanonicalName(rr.Hdr.Name) - tsig.Class = ClassANY - tsig.Ttl = rr.Hdr.Ttl - tsig.Algorithm = CanonicalName(rr.Algorithm) - tsig.TimeSigned = rr.TimeSigned - tsig.Fudge = rr.Fudge - tsig.Error = rr.Error - tsig.OtherLen = rr.OtherLen - tsig.OtherData = rr.OtherData - n, err := packTsigWire(tsig, tsigvar) - if err != nil { - return nil, err - } - tsigvar = tsigvar[:n] - } - - if requestMAC != "" { - x := append(buf, msgbuf...) - buf = append(x, tsigvar...) - } else { - buf = append(msgbuf, tsigvar...) - } - return buf, nil -} - -// Strip the TSIG from the raw message. -func stripTsig(msg []byte) ([]byte, *TSIG, error) { - // Copied from msg.go's Unpack() Header, but modified. - var ( - dh Header - err error - ) - off, tsigoff := 0, 0 - - if dh, off, err = unpackMsgHdr(msg, off); err != nil { - return nil, nil, err - } - if dh.Arcount == 0 { - return nil, nil, ErrNoSig - } - - // Rcode, see msg.go Unpack() - if int(dh.Bits&0xF) == RcodeNotAuth { - return nil, nil, ErrAuth - } - - for i := 0; i < int(dh.Qdcount); i++ { - _, off, err = unpackQuestion(msg, off) - if err != nil { - return nil, nil, err - } - } - - _, off, err = unpackRRslice(int(dh.Ancount), msg, off) - if err != nil { - return nil, nil, err - } - _, off, err = unpackRRslice(int(dh.Nscount), msg, off) - if err != nil { - return nil, nil, err - } - - rr := new(TSIG) - var extra RR - for i := 0; i < int(dh.Arcount); i++ { - tsigoff = off - extra, off, err = UnpackRR(msg, off) - if err != nil { - return nil, nil, err - } - if extra.Header().Rrtype == TypeTSIG { - rr = extra.(*TSIG) - // Adjust Arcount. - arcount := binary.BigEndian.Uint16(msg[10:]) - binary.BigEndian.PutUint16(msg[10:], arcount-1) - break - } - } - if rr == nil { - return nil, nil, ErrNoSig - } - return msg[:tsigoff], rr, nil -} - -// Translate the TSIG time signed into a date. There is no -// need for RFC1982 calculations as this date is 48 bits. -func tsigTimeToString(t uint64) string { - ti := time.Unix(int64(t), 0).UTC() - return ti.Format("20060102150405") -} - -func packTsigWire(tw *tsigWireFmt, msg []byte) (int, error) { - // copied from zmsg.go TSIG packing - // RR_Header - off, err := PackDomainName(tw.Name, msg, 0, nil, false) - if err != nil { - return off, err - } - off, err = packUint16(tw.Class, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(tw.Ttl, msg, off) - if err != nil { - return off, err - } - - off, err = PackDomainName(tw.Algorithm, msg, off, nil, false) - if err != nil { - return off, err - } - off, err = packUint48(tw.TimeSigned, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(tw.Fudge, msg, off) - if err != nil { - return off, err - } - - off, err = packUint16(tw.Error, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(tw.OtherLen, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(tw.OtherData, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func packMacWire(mw *macWireFmt, msg []byte) (int, error) { - off, err := packUint16(mw.MACSize, msg, 0) - if err != nil { - return off, err - } - off, err = packStringHex(mw.MAC, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func packTimerWire(tw *timerWireFmt, msg []byte) (int, error) { - off, err := packUint48(tw.TimeSigned, msg, 0) - if err != nil { - return off, err - } - off, err = packUint16(tw.Fudge, msg, off) - if err != nil { - return off, err - } - return off, nil -} diff --git a/vendor/github.com/miekg/dns/types.go b/vendor/github.com/miekg/dns/types.go deleted file mode 100644 index d9becb67cd..0000000000 --- a/vendor/github.com/miekg/dns/types.go +++ /dev/null @@ -1,1559 +0,0 @@ -package dns - -import ( - "bytes" - "fmt" - "net" - "strconv" - "strings" - "time" -) - -type ( - // Type is a DNS type. - Type uint16 - // Class is a DNS class. - Class uint16 - // Name is a DNS domain name. - Name string -) - -// Packet formats - -// Wire constants and supported types. -const ( - // valid RR_Header.Rrtype and Question.qtype - - TypeNone uint16 = 0 - TypeA uint16 = 1 - TypeNS uint16 = 2 - TypeMD uint16 = 3 - TypeMF uint16 = 4 - TypeCNAME uint16 = 5 - TypeSOA uint16 = 6 - TypeMB uint16 = 7 - TypeMG uint16 = 8 - TypeMR uint16 = 9 - TypeNULL uint16 = 10 - TypePTR uint16 = 12 - TypeHINFO uint16 = 13 - TypeMINFO uint16 = 14 - TypeMX uint16 = 15 - TypeTXT uint16 = 16 - TypeRP uint16 = 17 - TypeAFSDB uint16 = 18 - TypeX25 uint16 = 19 - TypeISDN uint16 = 20 - TypeRT uint16 = 21 - TypeNSAPPTR uint16 = 23 - TypeSIG uint16 = 24 - TypeKEY uint16 = 25 - TypePX uint16 = 26 - TypeGPOS uint16 = 27 - TypeAAAA uint16 = 28 - TypeLOC uint16 = 29 - TypeNXT uint16 = 30 - TypeEID uint16 = 31 - TypeNIMLOC uint16 = 32 - TypeSRV uint16 = 33 - TypeATMA uint16 = 34 - TypeNAPTR uint16 = 35 - TypeKX uint16 = 36 - TypeCERT uint16 = 37 - TypeDNAME uint16 = 39 - TypeOPT uint16 = 41 // EDNS - TypeAPL uint16 = 42 - TypeDS uint16 = 43 - TypeSSHFP uint16 = 44 - TypeRRSIG uint16 = 46 - TypeNSEC uint16 = 47 - TypeDNSKEY uint16 = 48 - TypeDHCID uint16 = 49 - TypeNSEC3 uint16 = 50 - TypeNSEC3PARAM uint16 = 51 - TypeTLSA uint16 = 52 - TypeSMIMEA uint16 = 53 - TypeHIP uint16 = 55 - TypeNINFO uint16 = 56 - TypeRKEY uint16 = 57 - TypeTALINK uint16 = 58 - TypeCDS uint16 = 59 - TypeCDNSKEY uint16 = 60 - TypeOPENPGPKEY uint16 = 61 - TypeCSYNC uint16 = 62 - TypeZONEMD uint16 = 63 - TypeSVCB uint16 = 64 - TypeHTTPS uint16 = 65 - TypeSPF uint16 = 99 - TypeUINFO uint16 = 100 - TypeUID uint16 = 101 - TypeGID uint16 = 102 - TypeUNSPEC uint16 = 103 - TypeNID uint16 = 104 - TypeL32 uint16 = 105 - TypeL64 uint16 = 106 - TypeLP uint16 = 107 - TypeEUI48 uint16 = 108 - TypeEUI64 uint16 = 109 - TypeURI uint16 = 256 - TypeCAA uint16 = 257 - TypeAVC uint16 = 258 - - TypeTKEY uint16 = 249 - TypeTSIG uint16 = 250 - - // valid Question.Qtype only - TypeIXFR uint16 = 251 - TypeAXFR uint16 = 252 - TypeMAILB uint16 = 253 - TypeMAILA uint16 = 254 - TypeANY uint16 = 255 - - TypeTA uint16 = 32768 - TypeDLV uint16 = 32769 - TypeReserved uint16 = 65535 - - // valid Question.Qclass - ClassINET = 1 - ClassCSNET = 2 - ClassCHAOS = 3 - ClassHESIOD = 4 - ClassNONE = 254 - ClassANY = 255 - - // Message Response Codes, see https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml - RcodeSuccess = 0 // NoError - No Error [DNS] - RcodeFormatError = 1 // FormErr - Format Error [DNS] - RcodeServerFailure = 2 // ServFail - Server Failure [DNS] - RcodeNameError = 3 // NXDomain - Non-Existent Domain [DNS] - RcodeNotImplemented = 4 // NotImp - Not Implemented [DNS] - RcodeRefused = 5 // Refused - Query Refused [DNS] - RcodeYXDomain = 6 // YXDomain - Name Exists when it should not [DNS Update] - RcodeYXRrset = 7 // YXRRSet - RR Set Exists when it should not [DNS Update] - RcodeNXRrset = 8 // NXRRSet - RR Set that should exist does not [DNS Update] - RcodeNotAuth = 9 // NotAuth - Server Not Authoritative for zone [DNS Update] - RcodeNotZone = 10 // NotZone - Name not contained in zone [DNS Update/TSIG] - RcodeBadSig = 16 // BADSIG - TSIG Signature Failure [TSIG] - RcodeBadVers = 16 // BADVERS - Bad OPT Version [EDNS0] - RcodeBadKey = 17 // BADKEY - Key not recognized [TSIG] - RcodeBadTime = 18 // BADTIME - Signature out of time window [TSIG] - RcodeBadMode = 19 // BADMODE - Bad TKEY Mode [TKEY] - RcodeBadName = 20 // BADNAME - Duplicate key name [TKEY] - RcodeBadAlg = 21 // BADALG - Algorithm not supported [TKEY] - RcodeBadTrunc = 22 // BADTRUNC - Bad Truncation [TSIG] - RcodeBadCookie = 23 // BADCOOKIE - Bad/missing Server Cookie [DNS Cookies] - - // Message Opcodes. There is no 3. - OpcodeQuery = 0 - OpcodeIQuery = 1 - OpcodeStatus = 2 - OpcodeNotify = 4 - OpcodeUpdate = 5 -) - -// Used in ZONEMD https://tools.ietf.org/html/rfc8976 -const ( - ZoneMDSchemeSimple = 1 - - ZoneMDHashAlgSHA384 = 1 - ZoneMDHashAlgSHA512 = 2 -) - -// Header is the wire format for the DNS packet header. -type Header struct { - Id uint16 - Bits uint16 - Qdcount, Ancount, Nscount, Arcount uint16 -} - -const ( - headerSize = 12 - - // Header.Bits - _QR = 1 << 15 // query/response (response=1) - _AA = 1 << 10 // authoritative - _TC = 1 << 9 // truncated - _RD = 1 << 8 // recursion desired - _RA = 1 << 7 // recursion available - _Z = 1 << 6 // Z - _AD = 1 << 5 // authenticated data - _CD = 1 << 4 // checking disabled -) - -// Various constants used in the LOC RR. See RFC 1887. -const ( - LOC_EQUATOR = 1 << 31 // RFC 1876, Section 2. - LOC_PRIMEMERIDIAN = 1 << 31 // RFC 1876, Section 2. - LOC_HOURS = 60 * 1000 - LOC_DEGREES = 60 * LOC_HOURS - LOC_ALTITUDEBASE = 100000 -) - -// Different Certificate Types, see RFC 4398, Section 2.1 -const ( - CertPKIX = 1 + iota - CertSPKI - CertPGP - CertIPIX - CertISPKI - CertIPGP - CertACPKIX - CertIACPKIX - CertURI = 253 - CertOID = 254 -) - -// CertTypeToString converts the Cert Type to its string representation. -// See RFC 4398 and RFC 6944. -var CertTypeToString = map[uint16]string{ - CertPKIX: "PKIX", - CertSPKI: "SPKI", - CertPGP: "PGP", - CertIPIX: "IPIX", - CertISPKI: "ISPKI", - CertIPGP: "IPGP", - CertACPKIX: "ACPKIX", - CertIACPKIX: "IACPKIX", - CertURI: "URI", - CertOID: "OID", -} - -//go:generate go run types_generate.go - -// Question holds a DNS question. Usually there is just one. While the -// original DNS RFCs allow multiple questions in the question section of a -// message, in practice it never works. Because most DNS servers see multiple -// questions as an error, it is recommended to only have one question per -// message. -type Question struct { - Name string `dns:"cdomain-name"` // "cdomain-name" specifies encoding (and may be compressed) - Qtype uint16 - Qclass uint16 -} - -func (q *Question) len(off int, compression map[string]struct{}) int { - l := domainNameLen(q.Name, off, compression, true) - l += 2 + 2 - return l -} - -func (q *Question) String() (s string) { - // prefix with ; (as in dig) - s = ";" + sprintName(q.Name) + "\t" - s += Class(q.Qclass).String() + "\t" - s += " " + Type(q.Qtype).String() - return s -} - -// ANY is a wild card record. See RFC 1035, Section 3.2.3. ANY -// is named "*" there. -type ANY struct { - Hdr RR_Header - // Does not have any rdata -} - -func (rr *ANY) String() string { return rr.Hdr.String() } - -func (*ANY) parse(c *zlexer, origin string) *ParseError { - return &ParseError{err: "ANY records do not have a presentation format"} -} - -// NULL RR. See RFC 1035. -type NULL struct { - Hdr RR_Header - Data string `dns:"any"` -} - -func (rr *NULL) String() string { - // There is no presentation format; prefix string with a comment. - return ";" + rr.Hdr.String() + rr.Data -} - -func (*NULL) parse(c *zlexer, origin string) *ParseError { - return &ParseError{err: "NULL records do not have a presentation format"} -} - -// CNAME RR. See RFC 1034. -type CNAME struct { - Hdr RR_Header - Target string `dns:"cdomain-name"` -} - -func (rr *CNAME) String() string { return rr.Hdr.String() + sprintName(rr.Target) } - -// HINFO RR. See RFC 1034. -type HINFO struct { - Hdr RR_Header - Cpu string - Os string -} - -func (rr *HINFO) String() string { - return rr.Hdr.String() + sprintTxt([]string{rr.Cpu, rr.Os}) -} - -// MB RR. See RFC 1035. -type MB struct { - Hdr RR_Header - Mb string `dns:"cdomain-name"` -} - -func (rr *MB) String() string { return rr.Hdr.String() + sprintName(rr.Mb) } - -// MG RR. See RFC 1035. -type MG struct { - Hdr RR_Header - Mg string `dns:"cdomain-name"` -} - -func (rr *MG) String() string { return rr.Hdr.String() + sprintName(rr.Mg) } - -// MINFO RR. See RFC 1035. -type MINFO struct { - Hdr RR_Header - Rmail string `dns:"cdomain-name"` - Email string `dns:"cdomain-name"` -} - -func (rr *MINFO) String() string { - return rr.Hdr.String() + sprintName(rr.Rmail) + " " + sprintName(rr.Email) -} - -// MR RR. See RFC 1035. -type MR struct { - Hdr RR_Header - Mr string `dns:"cdomain-name"` -} - -func (rr *MR) String() string { - return rr.Hdr.String() + sprintName(rr.Mr) -} - -// MF RR. See RFC 1035. -type MF struct { - Hdr RR_Header - Mf string `dns:"cdomain-name"` -} - -func (rr *MF) String() string { - return rr.Hdr.String() + sprintName(rr.Mf) -} - -// MD RR. See RFC 1035. -type MD struct { - Hdr RR_Header - Md string `dns:"cdomain-name"` -} - -func (rr *MD) String() string { - return rr.Hdr.String() + sprintName(rr.Md) -} - -// MX RR. See RFC 1035. -type MX struct { - Hdr RR_Header - Preference uint16 - Mx string `dns:"cdomain-name"` -} - -func (rr *MX) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Mx) -} - -// AFSDB RR. See RFC 1183. -type AFSDB struct { - Hdr RR_Header - Subtype uint16 - Hostname string `dns:"domain-name"` -} - -func (rr *AFSDB) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Subtype)) + " " + sprintName(rr.Hostname) -} - -// X25 RR. See RFC 1183, Section 3.1. -type X25 struct { - Hdr RR_Header - PSDNAddress string -} - -func (rr *X25) String() string { - return rr.Hdr.String() + rr.PSDNAddress -} - -// RT RR. See RFC 1183, Section 3.3. -type RT struct { - Hdr RR_Header - Preference uint16 - Host string `dns:"domain-name"` // RFC 3597 prohibits compressing records not defined in RFC 1035. -} - -func (rr *RT) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Host) -} - -// NS RR. See RFC 1035. -type NS struct { - Hdr RR_Header - Ns string `dns:"cdomain-name"` -} - -func (rr *NS) String() string { - return rr.Hdr.String() + sprintName(rr.Ns) -} - -// PTR RR. See RFC 1035. -type PTR struct { - Hdr RR_Header - Ptr string `dns:"cdomain-name"` -} - -func (rr *PTR) String() string { - return rr.Hdr.String() + sprintName(rr.Ptr) -} - -// RP RR. See RFC 1138, Section 2.2. -type RP struct { - Hdr RR_Header - Mbox string `dns:"domain-name"` - Txt string `dns:"domain-name"` -} - -func (rr *RP) String() string { - return rr.Hdr.String() + sprintName(rr.Mbox) + " " + sprintName(rr.Txt) -} - -// SOA RR. See RFC 1035. -type SOA struct { - Hdr RR_Header - Ns string `dns:"cdomain-name"` - Mbox string `dns:"cdomain-name"` - Serial uint32 - Refresh uint32 - Retry uint32 - Expire uint32 - Minttl uint32 -} - -func (rr *SOA) String() string { - return rr.Hdr.String() + sprintName(rr.Ns) + " " + sprintName(rr.Mbox) + - " " + strconv.FormatInt(int64(rr.Serial), 10) + - " " + strconv.FormatInt(int64(rr.Refresh), 10) + - " " + strconv.FormatInt(int64(rr.Retry), 10) + - " " + strconv.FormatInt(int64(rr.Expire), 10) + - " " + strconv.FormatInt(int64(rr.Minttl), 10) -} - -// TXT RR. See RFC 1035. -type TXT struct { - Hdr RR_Header - Txt []string `dns:"txt"` -} - -func (rr *TXT) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) } - -func sprintName(s string) string { - var dst strings.Builder - - for i := 0; i < len(s); { - if s[i] == '.' { - if dst.Len() != 0 { - dst.WriteByte('.') - } - i++ - continue - } - - b, n := nextByte(s, i) - if n == 0 { - // Drop "dangling" incomplete escapes. - if dst.Len() == 0 { - return s[:i] - } - break - } - if isDomainNameLabelSpecial(b) { - if dst.Len() == 0 { - dst.Grow(len(s) * 2) - dst.WriteString(s[:i]) - } - dst.WriteByte('\\') - dst.WriteByte(b) - } else if b < ' ' || b > '~' { // unprintable, use \DDD - if dst.Len() == 0 { - dst.Grow(len(s) * 2) - dst.WriteString(s[:i]) - } - dst.WriteString(escapeByte(b)) - } else { - if dst.Len() != 0 { - dst.WriteByte(b) - } - } - i += n - } - if dst.Len() == 0 { - return s - } - return dst.String() -} - -func sprintTxtOctet(s string) string { - var dst strings.Builder - dst.Grow(2 + len(s)) - dst.WriteByte('"') - for i := 0; i < len(s); { - if i+1 < len(s) && s[i] == '\\' && s[i+1] == '.' { - dst.WriteString(s[i : i+2]) - i += 2 - continue - } - - b, n := nextByte(s, i) - if n == 0 { - i++ // dangling back slash - } else { - writeTXTStringByte(&dst, b) - } - i += n - } - dst.WriteByte('"') - return dst.String() -} - -func sprintTxt(txt []string) string { - var out strings.Builder - for i, s := range txt { - out.Grow(3 + len(s)) - if i > 0 { - out.WriteString(` "`) - } else { - out.WriteByte('"') - } - for j := 0; j < len(s); { - b, n := nextByte(s, j) - if n == 0 { - break - } - writeTXTStringByte(&out, b) - j += n - } - out.WriteByte('"') - } - return out.String() -} - -func writeTXTStringByte(s *strings.Builder, b byte) { - switch { - case b == '"' || b == '\\': - s.WriteByte('\\') - s.WriteByte(b) - case b < ' ' || b > '~': - s.WriteString(escapeByte(b)) - default: - s.WriteByte(b) - } -} - -const ( - escapedByteSmall = "" + - `\000\001\002\003\004\005\006\007\008\009` + - `\010\011\012\013\014\015\016\017\018\019` + - `\020\021\022\023\024\025\026\027\028\029` + - `\030\031` - escapedByteLarge = `\127\128\129` + - `\130\131\132\133\134\135\136\137\138\139` + - `\140\141\142\143\144\145\146\147\148\149` + - `\150\151\152\153\154\155\156\157\158\159` + - `\160\161\162\163\164\165\166\167\168\169` + - `\170\171\172\173\174\175\176\177\178\179` + - `\180\181\182\183\184\185\186\187\188\189` + - `\190\191\192\193\194\195\196\197\198\199` + - `\200\201\202\203\204\205\206\207\208\209` + - `\210\211\212\213\214\215\216\217\218\219` + - `\220\221\222\223\224\225\226\227\228\229` + - `\230\231\232\233\234\235\236\237\238\239` + - `\240\241\242\243\244\245\246\247\248\249` + - `\250\251\252\253\254\255` -) - -// escapeByte returns the \DDD escaping of b which must -// satisfy b < ' ' || b > '~'. -func escapeByte(b byte) string { - if b < ' ' { - return escapedByteSmall[b*4 : b*4+4] - } - - b -= '~' + 1 - // The cast here is needed as b*4 may overflow byte. - return escapedByteLarge[int(b)*4 : int(b)*4+4] -} - -// isDomainNameLabelSpecial returns true if -// a domain name label byte should be prefixed -// with an escaping backslash. -func isDomainNameLabelSpecial(b byte) bool { - switch b { - case '.', ' ', '\'', '@', ';', '(', ')', '"', '\\': - return true - } - return false -} - -func nextByte(s string, offset int) (byte, int) { - if offset >= len(s) { - return 0, 0 - } - if s[offset] != '\\' { - // not an escape sequence - return s[offset], 1 - } - switch len(s) - offset { - case 1: // dangling escape - return 0, 0 - case 2, 3: // too short to be \ddd - default: // maybe \ddd - if isDigit(s[offset+1]) && isDigit(s[offset+2]) && isDigit(s[offset+3]) { - return dddStringToByte(s[offset+1:]), 4 - } - } - // not \ddd, just an RFC 1035 "quoted" character - return s[offset+1], 2 -} - -// SPF RR. See RFC 4408, Section 3.1.1. -type SPF struct { - Hdr RR_Header - Txt []string `dns:"txt"` -} - -func (rr *SPF) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) } - -// AVC RR. See https://www.iana.org/assignments/dns-parameters/AVC/avc-completed-template. -type AVC struct { - Hdr RR_Header - Txt []string `dns:"txt"` -} - -func (rr *AVC) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) } - -// SRV RR. See RFC 2782. -type SRV struct { - Hdr RR_Header - Priority uint16 - Weight uint16 - Port uint16 - Target string `dns:"domain-name"` -} - -func (rr *SRV) String() string { - return rr.Hdr.String() + - strconv.Itoa(int(rr.Priority)) + " " + - strconv.Itoa(int(rr.Weight)) + " " + - strconv.Itoa(int(rr.Port)) + " " + sprintName(rr.Target) -} - -// NAPTR RR. See RFC 2915. -type NAPTR struct { - Hdr RR_Header - Order uint16 - Preference uint16 - Flags string - Service string - Regexp string - Replacement string `dns:"domain-name"` -} - -func (rr *NAPTR) String() string { - return rr.Hdr.String() + - strconv.Itoa(int(rr.Order)) + " " + - strconv.Itoa(int(rr.Preference)) + " " + - "\"" + rr.Flags + "\" " + - "\"" + rr.Service + "\" " + - "\"" + rr.Regexp + "\" " + - rr.Replacement -} - -// CERT RR. See RFC 4398. -type CERT struct { - Hdr RR_Header - Type uint16 - KeyTag uint16 - Algorithm uint8 - Certificate string `dns:"base64"` -} - -func (rr *CERT) String() string { - var ( - ok bool - certtype, algorithm string - ) - if certtype, ok = CertTypeToString[rr.Type]; !ok { - certtype = strconv.Itoa(int(rr.Type)) - } - if algorithm, ok = AlgorithmToString[rr.Algorithm]; !ok { - algorithm = strconv.Itoa(int(rr.Algorithm)) - } - return rr.Hdr.String() + certtype + - " " + strconv.Itoa(int(rr.KeyTag)) + - " " + algorithm + - " " + rr.Certificate -} - -// DNAME RR. See RFC 2672. -type DNAME struct { - Hdr RR_Header - Target string `dns:"domain-name"` -} - -func (rr *DNAME) String() string { - return rr.Hdr.String() + sprintName(rr.Target) -} - -// A RR. See RFC 1035. -type A struct { - Hdr RR_Header - A net.IP `dns:"a"` -} - -func (rr *A) String() string { - if rr.A == nil { - return rr.Hdr.String() - } - return rr.Hdr.String() + rr.A.String() -} - -// AAAA RR. See RFC 3596. -type AAAA struct { - Hdr RR_Header - AAAA net.IP `dns:"aaaa"` -} - -func (rr *AAAA) String() string { - if rr.AAAA == nil { - return rr.Hdr.String() - } - return rr.Hdr.String() + rr.AAAA.String() -} - -// PX RR. See RFC 2163. -type PX struct { - Hdr RR_Header - Preference uint16 - Map822 string `dns:"domain-name"` - Mapx400 string `dns:"domain-name"` -} - -func (rr *PX) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Map822) + " " + sprintName(rr.Mapx400) -} - -// GPOS RR. See RFC 1712. -type GPOS struct { - Hdr RR_Header - Longitude string - Latitude string - Altitude string -} - -func (rr *GPOS) String() string { - return rr.Hdr.String() + rr.Longitude + " " + rr.Latitude + " " + rr.Altitude -} - -// LOC RR. See RFC RFC 1876. -type LOC struct { - Hdr RR_Header - Version uint8 - Size uint8 - HorizPre uint8 - VertPre uint8 - Latitude uint32 - Longitude uint32 - Altitude uint32 -} - -// cmToM takes a cm value expressed in RFC 1876 SIZE mantissa/exponent -// format and returns a string in m (two decimals for the cm). -func cmToM(m, e uint8) string { - if e < 2 { - if e == 1 { - m *= 10 - } - - return fmt.Sprintf("0.%02d", m) - } - - s := fmt.Sprintf("%d", m) - for e > 2 { - s += "0" - e-- - } - return s -} - -func (rr *LOC) String() string { - s := rr.Hdr.String() - - lat := rr.Latitude - ns := "N" - if lat > LOC_EQUATOR { - lat = lat - LOC_EQUATOR - } else { - ns = "S" - lat = LOC_EQUATOR - lat - } - h := lat / LOC_DEGREES - lat = lat % LOC_DEGREES - m := lat / LOC_HOURS - lat = lat % LOC_HOURS - s += fmt.Sprintf("%02d %02d %0.3f %s ", h, m, float64(lat)/1000, ns) - - lon := rr.Longitude - ew := "E" - if lon > LOC_PRIMEMERIDIAN { - lon = lon - LOC_PRIMEMERIDIAN - } else { - ew = "W" - lon = LOC_PRIMEMERIDIAN - lon - } - h = lon / LOC_DEGREES - lon = lon % LOC_DEGREES - m = lon / LOC_HOURS - lon = lon % LOC_HOURS - s += fmt.Sprintf("%02d %02d %0.3f %s ", h, m, float64(lon)/1000, ew) - - var alt = float64(rr.Altitude) / 100 - alt -= LOC_ALTITUDEBASE - if rr.Altitude%100 != 0 { - s += fmt.Sprintf("%.2fm ", alt) - } else { - s += fmt.Sprintf("%.0fm ", alt) - } - - s += cmToM(rr.Size&0xf0>>4, rr.Size&0x0f) + "m " - s += cmToM(rr.HorizPre&0xf0>>4, rr.HorizPre&0x0f) + "m " - s += cmToM(rr.VertPre&0xf0>>4, rr.VertPre&0x0f) + "m" - - return s -} - -// SIG RR. See RFC 2535. The SIG RR is identical to RRSIG and nowadays only used for SIG(0), See RFC 2931. -type SIG struct { - RRSIG -} - -// RRSIG RR. See RFC 4034 and RFC 3755. -type RRSIG struct { - Hdr RR_Header - TypeCovered uint16 - Algorithm uint8 - Labels uint8 - OrigTtl uint32 - Expiration uint32 - Inception uint32 - KeyTag uint16 - SignerName string `dns:"domain-name"` - Signature string `dns:"base64"` -} - -func (rr *RRSIG) String() string { - s := rr.Hdr.String() - s += Type(rr.TypeCovered).String() - s += " " + strconv.Itoa(int(rr.Algorithm)) + - " " + strconv.Itoa(int(rr.Labels)) + - " " + strconv.FormatInt(int64(rr.OrigTtl), 10) + - " " + TimeToString(rr.Expiration) + - " " + TimeToString(rr.Inception) + - " " + strconv.Itoa(int(rr.KeyTag)) + - " " + sprintName(rr.SignerName) + - " " + rr.Signature - return s -} - -// NSEC RR. See RFC 4034 and RFC 3755. -type NSEC struct { - Hdr RR_Header - NextDomain string `dns:"domain-name"` - TypeBitMap []uint16 `dns:"nsec"` -} - -func (rr *NSEC) String() string { - s := rr.Hdr.String() + sprintName(rr.NextDomain) - for _, t := range rr.TypeBitMap { - s += " " + Type(t).String() - } - return s -} - -func (rr *NSEC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.NextDomain, off+l, compression, false) - l += typeBitMapLen(rr.TypeBitMap) - return l -} - -// DLV RR. See RFC 4431. -type DLV struct{ DS } - -// CDS RR. See RFC 7344. -type CDS struct{ DS } - -// DS RR. See RFC 4034 and RFC 3658. -type DS struct { - Hdr RR_Header - KeyTag uint16 - Algorithm uint8 - DigestType uint8 - Digest string `dns:"hex"` -} - -func (rr *DS) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) + - " " + strconv.Itoa(int(rr.Algorithm)) + - " " + strconv.Itoa(int(rr.DigestType)) + - " " + strings.ToUpper(rr.Digest) -} - -// KX RR. See RFC 2230. -type KX struct { - Hdr RR_Header - Preference uint16 - Exchanger string `dns:"domain-name"` -} - -func (rr *KX) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + - " " + sprintName(rr.Exchanger) -} - -// TA RR. See http://www.watson.org/~weiler/INI1999-19.pdf. -type TA struct { - Hdr RR_Header - KeyTag uint16 - Algorithm uint8 - DigestType uint8 - Digest string `dns:"hex"` -} - -func (rr *TA) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) + - " " + strconv.Itoa(int(rr.Algorithm)) + - " " + strconv.Itoa(int(rr.DigestType)) + - " " + strings.ToUpper(rr.Digest) -} - -// TALINK RR. See https://www.iana.org/assignments/dns-parameters/TALINK/talink-completed-template. -type TALINK struct { - Hdr RR_Header - PreviousName string `dns:"domain-name"` - NextName string `dns:"domain-name"` -} - -func (rr *TALINK) String() string { - return rr.Hdr.String() + - sprintName(rr.PreviousName) + " " + sprintName(rr.NextName) -} - -// SSHFP RR. See RFC RFC 4255. -type SSHFP struct { - Hdr RR_Header - Algorithm uint8 - Type uint8 - FingerPrint string `dns:"hex"` -} - -func (rr *SSHFP) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Algorithm)) + - " " + strconv.Itoa(int(rr.Type)) + - " " + strings.ToUpper(rr.FingerPrint) -} - -// KEY RR. See RFC RFC 2535. -type KEY struct { - DNSKEY -} - -// CDNSKEY RR. See RFC 7344. -type CDNSKEY struct { - DNSKEY -} - -// DNSKEY RR. See RFC 4034 and RFC 3755. -type DNSKEY struct { - Hdr RR_Header - Flags uint16 - Protocol uint8 - Algorithm uint8 - PublicKey string `dns:"base64"` -} - -func (rr *DNSKEY) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Flags)) + - " " + strconv.Itoa(int(rr.Protocol)) + - " " + strconv.Itoa(int(rr.Algorithm)) + - " " + rr.PublicKey -} - -// RKEY RR. See https://www.iana.org/assignments/dns-parameters/RKEY/rkey-completed-template. -type RKEY struct { - Hdr RR_Header - Flags uint16 - Protocol uint8 - Algorithm uint8 - PublicKey string `dns:"base64"` -} - -func (rr *RKEY) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Flags)) + - " " + strconv.Itoa(int(rr.Protocol)) + - " " + strconv.Itoa(int(rr.Algorithm)) + - " " + rr.PublicKey -} - -// NSAPPTR RR. See RFC 1348. -type NSAPPTR struct { - Hdr RR_Header - Ptr string `dns:"domain-name"` -} - -func (rr *NSAPPTR) String() string { return rr.Hdr.String() + sprintName(rr.Ptr) } - -// NSEC3 RR. See RFC 5155. -type NSEC3 struct { - Hdr RR_Header - Hash uint8 - Flags uint8 - Iterations uint16 - SaltLength uint8 - Salt string `dns:"size-hex:SaltLength"` - HashLength uint8 - NextDomain string `dns:"size-base32:HashLength"` - TypeBitMap []uint16 `dns:"nsec"` -} - -func (rr *NSEC3) String() string { - s := rr.Hdr.String() - s += strconv.Itoa(int(rr.Hash)) + - " " + strconv.Itoa(int(rr.Flags)) + - " " + strconv.Itoa(int(rr.Iterations)) + - " " + saltToString(rr.Salt) + - " " + rr.NextDomain - for _, t := range rr.TypeBitMap { - s += " " + Type(t).String() - } - return s -} - -func (rr *NSEC3) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 6 + len(rr.Salt)/2 + 1 + len(rr.NextDomain) + 1 - l += typeBitMapLen(rr.TypeBitMap) - return l -} - -// NSEC3PARAM RR. See RFC 5155. -type NSEC3PARAM struct { - Hdr RR_Header - Hash uint8 - Flags uint8 - Iterations uint16 - SaltLength uint8 - Salt string `dns:"size-hex:SaltLength"` -} - -func (rr *NSEC3PARAM) String() string { - s := rr.Hdr.String() - s += strconv.Itoa(int(rr.Hash)) + - " " + strconv.Itoa(int(rr.Flags)) + - " " + strconv.Itoa(int(rr.Iterations)) + - " " + saltToString(rr.Salt) - return s -} - -// TKEY RR. See RFC 2930. -type TKEY struct { - Hdr RR_Header - Algorithm string `dns:"domain-name"` - Inception uint32 - Expiration uint32 - Mode uint16 - Error uint16 - KeySize uint16 - Key string `dns:"size-hex:KeySize"` - OtherLen uint16 - OtherData string `dns:"size-hex:OtherLen"` -} - -// TKEY has no official presentation format, but this will suffice. -func (rr *TKEY) String() string { - s := ";" + rr.Hdr.String() + - " " + rr.Algorithm + - " " + TimeToString(rr.Inception) + - " " + TimeToString(rr.Expiration) + - " " + strconv.Itoa(int(rr.Mode)) + - " " + strconv.Itoa(int(rr.Error)) + - " " + strconv.Itoa(int(rr.KeySize)) + - " " + rr.Key + - " " + strconv.Itoa(int(rr.OtherLen)) + - " " + rr.OtherData - return s -} - -// RFC3597 represents an unknown/generic RR. See RFC 3597. -type RFC3597 struct { - Hdr RR_Header - Rdata string `dns:"hex"` -} - -func (rr *RFC3597) String() string { - // Let's call it a hack - s := rfc3597Header(rr.Hdr) - - s += "\\# " + strconv.Itoa(len(rr.Rdata)/2) + " " + rr.Rdata - return s -} - -func rfc3597Header(h RR_Header) string { - var s string - - s += sprintName(h.Name) + "\t" - s += strconv.FormatInt(int64(h.Ttl), 10) + "\t" - s += "CLASS" + strconv.Itoa(int(h.Class)) + "\t" - s += "TYPE" + strconv.Itoa(int(h.Rrtype)) + "\t" - return s -} - -// URI RR. See RFC 7553. -type URI struct { - Hdr RR_Header - Priority uint16 - Weight uint16 - Target string `dns:"octet"` -} - -// rr.Target to be parsed as a sequence of character encoded octets according to RFC 3986 -func (rr *URI) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Priority)) + - " " + strconv.Itoa(int(rr.Weight)) + " " + sprintTxtOctet(rr.Target) -} - -// DHCID RR. See RFC 4701. -type DHCID struct { - Hdr RR_Header - Digest string `dns:"base64"` -} - -func (rr *DHCID) String() string { return rr.Hdr.String() + rr.Digest } - -// TLSA RR. See RFC 6698. -type TLSA struct { - Hdr RR_Header - Usage uint8 - Selector uint8 - MatchingType uint8 - Certificate string `dns:"hex"` -} - -func (rr *TLSA) String() string { - return rr.Hdr.String() + - strconv.Itoa(int(rr.Usage)) + - " " + strconv.Itoa(int(rr.Selector)) + - " " + strconv.Itoa(int(rr.MatchingType)) + - " " + rr.Certificate -} - -// SMIMEA RR. See RFC 8162. -type SMIMEA struct { - Hdr RR_Header - Usage uint8 - Selector uint8 - MatchingType uint8 - Certificate string `dns:"hex"` -} - -func (rr *SMIMEA) String() string { - s := rr.Hdr.String() + - strconv.Itoa(int(rr.Usage)) + - " " + strconv.Itoa(int(rr.Selector)) + - " " + strconv.Itoa(int(rr.MatchingType)) - - // Every Nth char needs a space on this output. If we output - // this as one giant line, we can't read it can in because in some cases - // the cert length overflows scan.maxTok (2048). - sx := splitN(rr.Certificate, 1024) // conservative value here - s += " " + strings.Join(sx, " ") - return s -} - -// HIP RR. See RFC 8005. -type HIP struct { - Hdr RR_Header - HitLength uint8 - PublicKeyAlgorithm uint8 - PublicKeyLength uint16 - Hit string `dns:"size-hex:HitLength"` - PublicKey string `dns:"size-base64:PublicKeyLength"` - RendezvousServers []string `dns:"domain-name"` -} - -func (rr *HIP) String() string { - s := rr.Hdr.String() + - strconv.Itoa(int(rr.PublicKeyAlgorithm)) + - " " + rr.Hit + - " " + rr.PublicKey - for _, d := range rr.RendezvousServers { - s += " " + sprintName(d) - } - return s -} - -// NINFO RR. See https://www.iana.org/assignments/dns-parameters/NINFO/ninfo-completed-template. -type NINFO struct { - Hdr RR_Header - ZSData []string `dns:"txt"` -} - -func (rr *NINFO) String() string { return rr.Hdr.String() + sprintTxt(rr.ZSData) } - -// NID RR. See RFC RFC 6742. -type NID struct { - Hdr RR_Header - Preference uint16 - NodeID uint64 -} - -func (rr *NID) String() string { - s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) - node := fmt.Sprintf("%0.16x", rr.NodeID) - s += " " + node[0:4] + ":" + node[4:8] + ":" + node[8:12] + ":" + node[12:16] - return s -} - -// L32 RR, See RFC 6742. -type L32 struct { - Hdr RR_Header - Preference uint16 - Locator32 net.IP `dns:"a"` -} - -func (rr *L32) String() string { - if rr.Locator32 == nil { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) - } - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + - " " + rr.Locator32.String() -} - -// L64 RR, See RFC 6742. -type L64 struct { - Hdr RR_Header - Preference uint16 - Locator64 uint64 -} - -func (rr *L64) String() string { - s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) - node := fmt.Sprintf("%0.16X", rr.Locator64) - s += " " + node[0:4] + ":" + node[4:8] + ":" + node[8:12] + ":" + node[12:16] - return s -} - -// LP RR. See RFC 6742. -type LP struct { - Hdr RR_Header - Preference uint16 - Fqdn string `dns:"domain-name"` -} - -func (rr *LP) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Fqdn) -} - -// EUI48 RR. See RFC 7043. -type EUI48 struct { - Hdr RR_Header - Address uint64 `dns:"uint48"` -} - -func (rr *EUI48) String() string { return rr.Hdr.String() + euiToString(rr.Address, 48) } - -// EUI64 RR. See RFC 7043. -type EUI64 struct { - Hdr RR_Header - Address uint64 -} - -func (rr *EUI64) String() string { return rr.Hdr.String() + euiToString(rr.Address, 64) } - -// CAA RR. See RFC 6844. -type CAA struct { - Hdr RR_Header - Flag uint8 - Tag string - Value string `dns:"octet"` -} - -// rr.Value Is the character-string encoding of the value field as specified in RFC 1035, Section 5.1. -func (rr *CAA) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Flag)) + " " + rr.Tag + " " + sprintTxtOctet(rr.Value) -} - -// UID RR. Deprecated, IANA-Reserved. -type UID struct { - Hdr RR_Header - Uid uint32 -} - -func (rr *UID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Uid), 10) } - -// GID RR. Deprecated, IANA-Reserved. -type GID struct { - Hdr RR_Header - Gid uint32 -} - -func (rr *GID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Gid), 10) } - -// UINFO RR. Deprecated, IANA-Reserved. -type UINFO struct { - Hdr RR_Header - Uinfo string -} - -func (rr *UINFO) String() string { return rr.Hdr.String() + sprintTxt([]string{rr.Uinfo}) } - -// EID RR. See http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt. -type EID struct { - Hdr RR_Header - Endpoint string `dns:"hex"` -} - -func (rr *EID) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Endpoint) } - -// NIMLOC RR. See http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt. -type NIMLOC struct { - Hdr RR_Header - Locator string `dns:"hex"` -} - -func (rr *NIMLOC) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Locator) } - -// OPENPGPKEY RR. See RFC 7929. -type OPENPGPKEY struct { - Hdr RR_Header - PublicKey string `dns:"base64"` -} - -func (rr *OPENPGPKEY) String() string { return rr.Hdr.String() + rr.PublicKey } - -// CSYNC RR. See RFC 7477. -type CSYNC struct { - Hdr RR_Header - Serial uint32 - Flags uint16 - TypeBitMap []uint16 `dns:"nsec"` -} - -func (rr *CSYNC) String() string { - s := rr.Hdr.String() + strconv.FormatInt(int64(rr.Serial), 10) + " " + strconv.Itoa(int(rr.Flags)) - - for _, t := range rr.TypeBitMap { - s += " " + Type(t).String() - } - return s -} - -func (rr *CSYNC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 4 + 2 - l += typeBitMapLen(rr.TypeBitMap) - return l -} - -// ZONEMD RR, from draft-ietf-dnsop-dns-zone-digest -type ZONEMD struct { - Hdr RR_Header - Serial uint32 - Scheme uint8 - Hash uint8 - Digest string `dns:"hex"` -} - -func (rr *ZONEMD) String() string { - return rr.Hdr.String() + - strconv.Itoa(int(rr.Serial)) + - " " + strconv.Itoa(int(rr.Scheme)) + - " " + strconv.Itoa(int(rr.Hash)) + - " " + rr.Digest -} - -// APL RR. See RFC 3123. -type APL struct { - Hdr RR_Header - Prefixes []APLPrefix `dns:"apl"` -} - -// APLPrefix is an address prefix hold by an APL record. -type APLPrefix struct { - Negation bool - Network net.IPNet -} - -// String returns presentation form of the APL record. -func (rr *APL) String() string { - var sb strings.Builder - sb.WriteString(rr.Hdr.String()) - for i, p := range rr.Prefixes { - if i > 0 { - sb.WriteByte(' ') - } - sb.WriteString(p.str()) - } - return sb.String() -} - -// str returns presentation form of the APL prefix. -func (a *APLPrefix) str() string { - var sb strings.Builder - if a.Negation { - sb.WriteByte('!') - } - - switch len(a.Network.IP) { - case net.IPv4len: - sb.WriteByte('1') - case net.IPv6len: - sb.WriteByte('2') - } - - sb.WriteByte(':') - - switch len(a.Network.IP) { - case net.IPv4len: - sb.WriteString(a.Network.IP.String()) - case net.IPv6len: - // add prefix for IPv4-mapped IPv6 - if v4 := a.Network.IP.To4(); v4 != nil { - sb.WriteString("::ffff:") - } - sb.WriteString(a.Network.IP.String()) - } - - sb.WriteByte('/') - - prefix, _ := a.Network.Mask.Size() - sb.WriteString(strconv.Itoa(prefix)) - - return sb.String() -} - -// equals reports whether two APL prefixes are identical. -func (a *APLPrefix) equals(b *APLPrefix) bool { - return a.Negation == b.Negation && - bytes.Equal(a.Network.IP, b.Network.IP) && - bytes.Equal(a.Network.Mask, b.Network.Mask) -} - -// copy returns a copy of the APL prefix. -func (a *APLPrefix) copy() APLPrefix { - return APLPrefix{ - Negation: a.Negation, - Network: copyNet(a.Network), - } -} - -// len returns size of the prefix in wire format. -func (a *APLPrefix) len() int { - // 4-byte header and the network address prefix (see Section 4 of RFC 3123) - prefix, _ := a.Network.Mask.Size() - return 4 + (prefix+7)/8 -} - -// TimeToString translates the RRSIG's incep. and expir. times to the -// string representation used when printing the record. -// It takes serial arithmetic (RFC 1982) into account. -func TimeToString(t uint32) string { - mod := (int64(t)-time.Now().Unix())/year68 - 1 - if mod < 0 { - mod = 0 - } - ti := time.Unix(int64(t)-mod*year68, 0).UTC() - return ti.Format("20060102150405") -} - -// StringToTime translates the RRSIG's incep. and expir. times from -// string values like "20110403154150" to an 32 bit integer. -// It takes serial arithmetic (RFC 1982) into account. -func StringToTime(s string) (uint32, error) { - t, err := time.Parse("20060102150405", s) - if err != nil { - return 0, err - } - mod := t.Unix()/year68 - 1 - if mod < 0 { - mod = 0 - } - return uint32(t.Unix() - mod*year68), nil -} - -// saltToString converts a NSECX salt to uppercase and returns "-" when it is empty. -func saltToString(s string) string { - if s == "" { - return "-" - } - return strings.ToUpper(s) -} - -func euiToString(eui uint64, bits int) (hex string) { - switch bits { - case 64: - hex = fmt.Sprintf("%16.16x", eui) - hex = hex[0:2] + "-" + hex[2:4] + "-" + hex[4:6] + "-" + hex[6:8] + - "-" + hex[8:10] + "-" + hex[10:12] + "-" + hex[12:14] + "-" + hex[14:16] - case 48: - hex = fmt.Sprintf("%12.12x", eui) - hex = hex[0:2] + "-" + hex[2:4] + "-" + hex[4:6] + "-" + hex[6:8] + - "-" + hex[8:10] + "-" + hex[10:12] - } - return -} - -// copyIP returns a copy of ip. -func copyIP(ip net.IP) net.IP { - p := make(net.IP, len(ip)) - copy(p, ip) - return p -} - -// copyNet returns a copy of a subnet. -func copyNet(n net.IPNet) net.IPNet { - m := make(net.IPMask, len(n.Mask)) - copy(m, n.Mask) - - return net.IPNet{ - IP: copyIP(n.IP), - Mask: m, - } -} - -// SplitN splits a string into N sized string chunks. -// This might become an exported function once. -func splitN(s string, n int) []string { - if len(s) < n { - return []string{s} - } - sx := []string{} - p, i := 0, n - for { - if i <= len(s) { - sx = append(sx, s[p:i]) - } else { - sx = append(sx, s[p:]) - break - - } - p, i = p+n, i+n - } - - return sx -} diff --git a/vendor/github.com/miekg/dns/udp.go b/vendor/github.com/miekg/dns/udp.go deleted file mode 100644 index a4826ee2ff..0000000000 --- a/vendor/github.com/miekg/dns/udp.go +++ /dev/null @@ -1,102 +0,0 @@ -// +build !windows - -package dns - -import ( - "net" - - "golang.org/x/net/ipv4" - "golang.org/x/net/ipv6" -) - -// This is the required size of the OOB buffer to pass to ReadMsgUDP. -var udpOOBSize = func() int { - // We can't know whether we'll get an IPv4 control message or an - // IPv6 control message ahead of time. To get around this, we size - // the buffer equal to the largest of the two. - - oob4 := ipv4.NewControlMessage(ipv4.FlagDst | ipv4.FlagInterface) - oob6 := ipv6.NewControlMessage(ipv6.FlagDst | ipv6.FlagInterface) - - if len(oob4) > len(oob6) { - return len(oob4) - } - - return len(oob6) -}() - -// SessionUDP holds the remote address and the associated -// out-of-band data. -type SessionUDP struct { - raddr *net.UDPAddr - context []byte -} - -// RemoteAddr returns the remote network address. -func (s *SessionUDP) RemoteAddr() net.Addr { return s.raddr } - -// ReadFromSessionUDP acts just like net.UDPConn.ReadFrom(), but returns a session object instead of a -// net.UDPAddr. -func ReadFromSessionUDP(conn *net.UDPConn, b []byte) (int, *SessionUDP, error) { - oob := make([]byte, udpOOBSize) - n, oobn, _, raddr, err := conn.ReadMsgUDP(b, oob) - if err != nil { - return n, nil, err - } - return n, &SessionUDP{raddr, oob[:oobn]}, err -} - -// WriteToSessionUDP acts just like net.UDPConn.WriteTo(), but uses a *SessionUDP instead of a net.Addr. -func WriteToSessionUDP(conn *net.UDPConn, b []byte, session *SessionUDP) (int, error) { - oob := correctSource(session.context) - n, _, err := conn.WriteMsgUDP(b, oob, session.raddr) - return n, err -} - -func setUDPSocketOptions(conn *net.UDPConn) error { - // Try setting the flags for both families and ignore the errors unless they - // both error. - err6 := ipv6.NewPacketConn(conn).SetControlMessage(ipv6.FlagDst|ipv6.FlagInterface, true) - err4 := ipv4.NewPacketConn(conn).SetControlMessage(ipv4.FlagDst|ipv4.FlagInterface, true) - if err6 != nil && err4 != nil { - return err4 - } - return nil -} - -// parseDstFromOOB takes oob data and returns the destination IP. -func parseDstFromOOB(oob []byte) net.IP { - // Start with IPv6 and then fallback to IPv4 - // TODO(fastest963): Figure out a way to prefer one or the other. Looking at - // the lvl of the header for a 0 or 41 isn't cross-platform. - cm6 := new(ipv6.ControlMessage) - if cm6.Parse(oob) == nil && cm6.Dst != nil { - return cm6.Dst - } - cm4 := new(ipv4.ControlMessage) - if cm4.Parse(oob) == nil && cm4.Dst != nil { - return cm4.Dst - } - return nil -} - -// correctSource takes oob data and returns new oob data with the Src equal to the Dst -func correctSource(oob []byte) []byte { - dst := parseDstFromOOB(oob) - if dst == nil { - return nil - } - // If the dst is definitely an IPv6, then use ipv6's ControlMessage to - // respond otherwise use ipv4's because ipv6's marshal ignores ipv4 - // addresses. - if dst.To4() == nil { - cm := new(ipv6.ControlMessage) - cm.Src = dst - oob = cm.Marshal() - } else { - cm := new(ipv4.ControlMessage) - cm.Src = dst - oob = cm.Marshal() - } - return oob -} diff --git a/vendor/github.com/miekg/dns/udp_windows.go b/vendor/github.com/miekg/dns/udp_windows.go deleted file mode 100644 index e7dd8ca313..0000000000 --- a/vendor/github.com/miekg/dns/udp_windows.go +++ /dev/null @@ -1,35 +0,0 @@ -// +build windows - -package dns - -import "net" - -// SessionUDP holds the remote address -type SessionUDP struct { - raddr *net.UDPAddr -} - -// RemoteAddr returns the remote network address. -func (s *SessionUDP) RemoteAddr() net.Addr { return s.raddr } - -// ReadFromSessionUDP acts just like net.UDPConn.ReadFrom(), but returns a session object instead of a -// net.UDPAddr. -// TODO(fastest963): Once go1.10 is released, use ReadMsgUDP. -func ReadFromSessionUDP(conn *net.UDPConn, b []byte) (int, *SessionUDP, error) { - n, raddr, err := conn.ReadFrom(b) - if err != nil { - return n, nil, err - } - return n, &SessionUDP{raddr.(*net.UDPAddr)}, err -} - -// WriteToSessionUDP acts just like net.UDPConn.WriteTo(), but uses a *SessionUDP instead of a net.Addr. -// TODO(fastest963): Once go1.10 is released, use WriteMsgUDP. -func WriteToSessionUDP(conn *net.UDPConn, b []byte, session *SessionUDP) (int, error) { - return conn.WriteTo(b, session.raddr) -} - -// TODO(fastest963): Once go1.10 is released and we can use *MsgUDP methods -// use the standard method in udp.go for these. -func setUDPSocketOptions(*net.UDPConn) error { return nil } -func parseDstFromOOB([]byte, net.IP) net.IP { return nil } diff --git a/vendor/github.com/miekg/dns/update.go b/vendor/github.com/miekg/dns/update.go deleted file mode 100644 index 69dd386522..0000000000 --- a/vendor/github.com/miekg/dns/update.go +++ /dev/null @@ -1,110 +0,0 @@ -package dns - -// NameUsed sets the RRs in the prereq section to -// "Name is in use" RRs. RFC 2136 section 2.4.4. -func (u *Msg) NameUsed(rr []RR) { - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: TypeANY, Class: ClassANY}}) - } -} - -// NameNotUsed sets the RRs in the prereq section to -// "Name is in not use" RRs. RFC 2136 section 2.4.5. -func (u *Msg) NameNotUsed(rr []RR) { - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: TypeANY, Class: ClassNONE}}) - } -} - -// Used sets the RRs in the prereq section to -// "RRset exists (value dependent -- with rdata)" RRs. RFC 2136 section 2.4.2. -func (u *Msg) Used(rr []RR) { - if len(u.Question) == 0 { - panic("dns: empty question section") - } - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - r.Header().Class = u.Question[0].Qclass - u.Answer = append(u.Answer, r) - } -} - -// RRsetUsed sets the RRs in the prereq section to -// "RRset exists (value independent -- no rdata)" RRs. RFC 2136 section 2.4.1. -func (u *Msg) RRsetUsed(rr []RR) { - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - h := r.Header() - u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: h.Name, Ttl: 0, Rrtype: h.Rrtype, Class: ClassANY}}) - } -} - -// RRsetNotUsed sets the RRs in the prereq section to -// "RRset does not exist" RRs. RFC 2136 section 2.4.3. -func (u *Msg) RRsetNotUsed(rr []RR) { - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - h := r.Header() - u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: h.Name, Ttl: 0, Rrtype: h.Rrtype, Class: ClassNONE}}) - } -} - -// Insert creates a dynamic update packet that adds an complete RRset, see RFC 2136 section 2.5.1. -func (u *Msg) Insert(rr []RR) { - if len(u.Question) == 0 { - panic("dns: empty question section") - } - if u.Ns == nil { - u.Ns = make([]RR, 0, len(rr)) - } - for _, r := range rr { - r.Header().Class = u.Question[0].Qclass - u.Ns = append(u.Ns, r) - } -} - -// RemoveRRset creates a dynamic update packet that deletes an RRset, see RFC 2136 section 2.5.2. -func (u *Msg) RemoveRRset(rr []RR) { - if u.Ns == nil { - u.Ns = make([]RR, 0, len(rr)) - } - for _, r := range rr { - h := r.Header() - u.Ns = append(u.Ns, &ANY{Hdr: RR_Header{Name: h.Name, Ttl: 0, Rrtype: h.Rrtype, Class: ClassANY}}) - } -} - -// RemoveName creates a dynamic update packet that deletes all RRsets of a name, see RFC 2136 section 2.5.3 -func (u *Msg) RemoveName(rr []RR) { - if u.Ns == nil { - u.Ns = make([]RR, 0, len(rr)) - } - for _, r := range rr { - u.Ns = append(u.Ns, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: TypeANY, Class: ClassANY}}) - } -} - -// Remove creates a dynamic update packet deletes RR from a RRSset, see RFC 2136 section 2.5.4 -func (u *Msg) Remove(rr []RR) { - if u.Ns == nil { - u.Ns = make([]RR, 0, len(rr)) - } - for _, r := range rr { - h := r.Header() - h.Class = ClassNONE - h.Ttl = 0 - u.Ns = append(u.Ns, r) - } -} diff --git a/vendor/github.com/miekg/dns/version.go b/vendor/github.com/miekg/dns/version.go deleted file mode 100644 index 622c69a1b8..0000000000 --- a/vendor/github.com/miekg/dns/version.go +++ /dev/null @@ -1,15 +0,0 @@ -package dns - -import "fmt" - -// Version is current version of this library. -var Version = v{1, 1, 43} - -// v holds the version of this library. -type v struct { - Major, Minor, Patch int -} - -func (v v) String() string { - return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Patch) -} diff --git a/vendor/github.com/miekg/dns/xfr.go b/vendor/github.com/miekg/dns/xfr.go deleted file mode 100644 index 43970e64f3..0000000000 --- a/vendor/github.com/miekg/dns/xfr.go +++ /dev/null @@ -1,266 +0,0 @@ -package dns - -import ( - "fmt" - "time" -) - -// Envelope is used when doing a zone transfer with a remote server. -type Envelope struct { - RR []RR // The set of RRs in the answer section of the xfr reply message. - Error error // If something went wrong, this contains the error. -} - -// A Transfer defines parameters that are used during a zone transfer. -type Transfer struct { - *Conn - DialTimeout time.Duration // net.DialTimeout, defaults to 2 seconds - ReadTimeout time.Duration // net.Conn.SetReadTimeout value for connections, defaults to 2 seconds - WriteTimeout time.Duration // net.Conn.SetWriteTimeout value for connections, defaults to 2 seconds - TsigSecret map[string]string // Secret(s) for Tsig map[<zonename>]<base64 secret>, zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2) - tsigTimersOnly bool -} - -// Think we need to away to stop the transfer - -// In performs an incoming transfer with the server in a. -// If you would like to set the source IP, or some other attribute -// of a Dialer for a Transfer, you can do so by specifying the attributes -// in the Transfer.Conn: -// -// d := net.Dialer{LocalAddr: transfer_source} -// con, err := d.Dial("tcp", master) -// dnscon := &dns.Conn{Conn:con} -// transfer = &dns.Transfer{Conn: dnscon} -// channel, err := transfer.In(message, master) -// -func (t *Transfer) In(q *Msg, a string) (env chan *Envelope, err error) { - switch q.Question[0].Qtype { - case TypeAXFR, TypeIXFR: - default: - return nil, &Error{"unsupported question type"} - } - - timeout := dnsTimeout - if t.DialTimeout != 0 { - timeout = t.DialTimeout - } - - if t.Conn == nil { - t.Conn, err = DialTimeout("tcp", a, timeout) - if err != nil { - return nil, err - } - } - - if err := t.WriteMsg(q); err != nil { - return nil, err - } - - env = make(chan *Envelope) - switch q.Question[0].Qtype { - case TypeAXFR: - go t.inAxfr(q, env) - case TypeIXFR: - go t.inIxfr(q, env) - } - - return env, nil -} - -func (t *Transfer) inAxfr(q *Msg, c chan *Envelope) { - first := true - defer t.Close() - defer close(c) - timeout := dnsTimeout - if t.ReadTimeout != 0 { - timeout = t.ReadTimeout - } - for { - t.Conn.SetReadDeadline(time.Now().Add(timeout)) - in, err := t.ReadMsg() - if err != nil { - c <- &Envelope{nil, err} - return - } - if q.Id != in.Id { - c <- &Envelope{in.Answer, ErrId} - return - } - if first { - if in.Rcode != RcodeSuccess { - c <- &Envelope{in.Answer, &Error{err: fmt.Sprintf(errXFR, in.Rcode)}} - return - } - if !isSOAFirst(in) { - c <- &Envelope{in.Answer, ErrSoa} - return - } - first = !first - // only one answer that is SOA, receive more - if len(in.Answer) == 1 { - t.tsigTimersOnly = true - c <- &Envelope{in.Answer, nil} - continue - } - } - - if !first { - t.tsigTimersOnly = true // Subsequent envelopes use this. - if isSOALast(in) { - c <- &Envelope{in.Answer, nil} - return - } - c <- &Envelope{in.Answer, nil} - } - } -} - -func (t *Transfer) inIxfr(q *Msg, c chan *Envelope) { - var serial uint32 // The first serial seen is the current server serial - axfr := true - n := 0 - qser := q.Ns[0].(*SOA).Serial - defer t.Close() - defer close(c) - timeout := dnsTimeout - if t.ReadTimeout != 0 { - timeout = t.ReadTimeout - } - for { - t.SetReadDeadline(time.Now().Add(timeout)) - in, err := t.ReadMsg() - if err != nil { - c <- &Envelope{nil, err} - return - } - if q.Id != in.Id { - c <- &Envelope{in.Answer, ErrId} - return - } - if in.Rcode != RcodeSuccess { - c <- &Envelope{in.Answer, &Error{err: fmt.Sprintf(errXFR, in.Rcode)}} - return - } - if n == 0 { - // Check if the returned answer is ok - if !isSOAFirst(in) { - c <- &Envelope{in.Answer, ErrSoa} - return - } - // This serial is important - serial = in.Answer[0].(*SOA).Serial - // Check if there are no changes in zone - if qser >= serial { - c <- &Envelope{in.Answer, nil} - return - } - } - // Now we need to check each message for SOA records, to see what we need to do - t.tsigTimersOnly = true - for _, rr := range in.Answer { - if v, ok := rr.(*SOA); ok { - if v.Serial == serial { - n++ - // quit if it's a full axfr or the the servers' SOA is repeated the third time - if axfr && n == 2 || n == 3 { - c <- &Envelope{in.Answer, nil} - return - } - } else if axfr { - // it's an ixfr - axfr = false - } - } - } - c <- &Envelope{in.Answer, nil} - } -} - -// Out performs an outgoing transfer with the client connecting in w. -// Basic use pattern: -// -// ch := make(chan *dns.Envelope) -// tr := new(dns.Transfer) -// var wg sync.WaitGroup -// go func() { -// tr.Out(w, r, ch) -// wg.Done() -// }() -// ch <- &dns.Envelope{RR: []dns.RR{soa, rr1, rr2, rr3, soa}} -// close(ch) -// wg.Wait() // wait until everything is written out -// w.Close() // close connection -// -// The server is responsible for sending the correct sequence of RRs through the channel ch. -func (t *Transfer) Out(w ResponseWriter, q *Msg, ch chan *Envelope) error { - for x := range ch { - r := new(Msg) - // Compress? - r.SetReply(q) - r.Authoritative = true - // assume it fits TODO(miek): fix - r.Answer = append(r.Answer, x.RR...) - if tsig := q.IsTsig(); tsig != nil && w.TsigStatus() == nil { - r.SetTsig(tsig.Hdr.Name, tsig.Algorithm, tsig.Fudge, time.Now().Unix()) - } - if err := w.WriteMsg(r); err != nil { - return err - } - w.TsigTimersOnly(true) - } - return nil -} - -// ReadMsg reads a message from the transfer connection t. -func (t *Transfer) ReadMsg() (*Msg, error) { - m := new(Msg) - p := make([]byte, MaxMsgSize) - n, err := t.Read(p) - if err != nil && n == 0 { - return nil, err - } - p = p[:n] - if err := m.Unpack(p); err != nil { - return nil, err - } - if ts := m.IsTsig(); ts != nil && t.TsigSecret != nil { - if _, ok := t.TsigSecret[ts.Hdr.Name]; !ok { - return m, ErrSecret - } - // Need to work on the original message p, as that was used to calculate the tsig. - err = TsigVerify(p, t.TsigSecret[ts.Hdr.Name], t.tsigRequestMAC, t.tsigTimersOnly) - t.tsigRequestMAC = ts.MAC - } - return m, err -} - -// WriteMsg writes a message through the transfer connection t. -func (t *Transfer) WriteMsg(m *Msg) (err error) { - var out []byte - if ts := m.IsTsig(); ts != nil && t.TsigSecret != nil { - if _, ok := t.TsigSecret[ts.Hdr.Name]; !ok { - return ErrSecret - } - out, t.tsigRequestMAC, err = TsigGenerate(m, t.TsigSecret[ts.Hdr.Name], t.tsigRequestMAC, t.tsigTimersOnly) - } else { - out, err = m.Pack() - } - if err != nil { - return err - } - _, err = t.Write(out) - return err -} - -func isSOAFirst(in *Msg) bool { - return len(in.Answer) > 0 && - in.Answer[0].Header().Rrtype == TypeSOA -} - -func isSOALast(in *Msg) bool { - return len(in.Answer) > 0 && - in.Answer[len(in.Answer)-1].Header().Rrtype == TypeSOA -} - -const errXFR = "bad xfr rcode: %d" diff --git a/vendor/github.com/miekg/dns/zduplicate.go b/vendor/github.com/miekg/dns/zduplicate.go deleted file mode 100644 index 9eb1dac299..0000000000 --- a/vendor/github.com/miekg/dns/zduplicate.go +++ /dev/null @@ -1,1340 +0,0 @@ -// Code generated by "go run duplicate_generate.go"; DO NOT EDIT. - -package dns - -// isDuplicate() functions - -func (r1 *A) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*A) - if !ok { - return false - } - _ = r2 - if !r1.A.Equal(r2.A) { - return false - } - return true -} - -func (r1 *AAAA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*AAAA) - if !ok { - return false - } - _ = r2 - if !r1.AAAA.Equal(r2.AAAA) { - return false - } - return true -} - -func (r1 *AFSDB) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*AFSDB) - if !ok { - return false - } - _ = r2 - if r1.Subtype != r2.Subtype { - return false - } - if !isDuplicateName(r1.Hostname, r2.Hostname) { - return false - } - return true -} - -func (r1 *ANY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*ANY) - if !ok { - return false - } - _ = r2 - return true -} - -func (r1 *APL) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*APL) - if !ok { - return false - } - _ = r2 - if len(r1.Prefixes) != len(r2.Prefixes) { - return false - } - for i := 0; i < len(r1.Prefixes); i++ { - if !r1.Prefixes[i].equals(&r2.Prefixes[i]) { - return false - } - } - return true -} - -func (r1 *AVC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*AVC) - if !ok { - return false - } - _ = r2 - if len(r1.Txt) != len(r2.Txt) { - return false - } - for i := 0; i < len(r1.Txt); i++ { - if r1.Txt[i] != r2.Txt[i] { - return false - } - } - return true -} - -func (r1 *CAA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CAA) - if !ok { - return false - } - _ = r2 - if r1.Flag != r2.Flag { - return false - } - if r1.Tag != r2.Tag { - return false - } - if r1.Value != r2.Value { - return false - } - return true -} - -func (r1 *CDNSKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CDNSKEY) - if !ok { - return false - } - _ = r2 - if r1.Flags != r2.Flags { - return false - } - if r1.Protocol != r2.Protocol { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *CDS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CDS) - if !ok { - return false - } - _ = r2 - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.DigestType != r2.DigestType { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *CERT) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CERT) - if !ok { - return false - } - _ = r2 - if r1.Type != r2.Type { - return false - } - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.Certificate != r2.Certificate { - return false - } - return true -} - -func (r1 *CNAME) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CNAME) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - return true -} - -func (r1 *CSYNC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CSYNC) - if !ok { - return false - } - _ = r2 - if r1.Serial != r2.Serial { - return false - } - if r1.Flags != r2.Flags { - return false - } - if len(r1.TypeBitMap) != len(r2.TypeBitMap) { - return false - } - for i := 0; i < len(r1.TypeBitMap); i++ { - if r1.TypeBitMap[i] != r2.TypeBitMap[i] { - return false - } - } - return true -} - -func (r1 *DHCID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DHCID) - if !ok { - return false - } - _ = r2 - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *DLV) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DLV) - if !ok { - return false - } - _ = r2 - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.DigestType != r2.DigestType { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *DNAME) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DNAME) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - return true -} - -func (r1 *DNSKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DNSKEY) - if !ok { - return false - } - _ = r2 - if r1.Flags != r2.Flags { - return false - } - if r1.Protocol != r2.Protocol { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *DS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DS) - if !ok { - return false - } - _ = r2 - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.DigestType != r2.DigestType { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *EID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*EID) - if !ok { - return false - } - _ = r2 - if r1.Endpoint != r2.Endpoint { - return false - } - return true -} - -func (r1 *EUI48) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*EUI48) - if !ok { - return false - } - _ = r2 - if r1.Address != r2.Address { - return false - } - return true -} - -func (r1 *EUI64) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*EUI64) - if !ok { - return false - } - _ = r2 - if r1.Address != r2.Address { - return false - } - return true -} - -func (r1 *GID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*GID) - if !ok { - return false - } - _ = r2 - if r1.Gid != r2.Gid { - return false - } - return true -} - -func (r1 *GPOS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*GPOS) - if !ok { - return false - } - _ = r2 - if r1.Longitude != r2.Longitude { - return false - } - if r1.Latitude != r2.Latitude { - return false - } - if r1.Altitude != r2.Altitude { - return false - } - return true -} - -func (r1 *HINFO) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*HINFO) - if !ok { - return false - } - _ = r2 - if r1.Cpu != r2.Cpu { - return false - } - if r1.Os != r2.Os { - return false - } - return true -} - -func (r1 *HIP) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*HIP) - if !ok { - return false - } - _ = r2 - if r1.HitLength != r2.HitLength { - return false - } - if r1.PublicKeyAlgorithm != r2.PublicKeyAlgorithm { - return false - } - if r1.PublicKeyLength != r2.PublicKeyLength { - return false - } - if r1.Hit != r2.Hit { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - if len(r1.RendezvousServers) != len(r2.RendezvousServers) { - return false - } - for i := 0; i < len(r1.RendezvousServers); i++ { - if !isDuplicateName(r1.RendezvousServers[i], r2.RendezvousServers[i]) { - return false - } - } - return true -} - -func (r1 *HTTPS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*HTTPS) - if !ok { - return false - } - _ = r2 - if r1.Priority != r2.Priority { - return false - } - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - if len(r1.Value) != len(r2.Value) { - return false - } - if !areSVCBPairArraysEqual(r1.Value, r2.Value) { - return false - } - return true -} - -func (r1 *KEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*KEY) - if !ok { - return false - } - _ = r2 - if r1.Flags != r2.Flags { - return false - } - if r1.Protocol != r2.Protocol { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *KX) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*KX) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Exchanger, r2.Exchanger) { - return false - } - return true -} - -func (r1 *L32) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*L32) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !r1.Locator32.Equal(r2.Locator32) { - return false - } - return true -} - -func (r1 *L64) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*L64) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if r1.Locator64 != r2.Locator64 { - return false - } - return true -} - -func (r1 *LOC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*LOC) - if !ok { - return false - } - _ = r2 - if r1.Version != r2.Version { - return false - } - if r1.Size != r2.Size { - return false - } - if r1.HorizPre != r2.HorizPre { - return false - } - if r1.VertPre != r2.VertPre { - return false - } - if r1.Latitude != r2.Latitude { - return false - } - if r1.Longitude != r2.Longitude { - return false - } - if r1.Altitude != r2.Altitude { - return false - } - return true -} - -func (r1 *LP) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*LP) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Fqdn, r2.Fqdn) { - return false - } - return true -} - -func (r1 *MB) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MB) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mb, r2.Mb) { - return false - } - return true -} - -func (r1 *MD) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MD) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Md, r2.Md) { - return false - } - return true -} - -func (r1 *MF) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MF) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mf, r2.Mf) { - return false - } - return true -} - -func (r1 *MG) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MG) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mg, r2.Mg) { - return false - } - return true -} - -func (r1 *MINFO) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MINFO) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Rmail, r2.Rmail) { - return false - } - if !isDuplicateName(r1.Email, r2.Email) { - return false - } - return true -} - -func (r1 *MR) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MR) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mr, r2.Mr) { - return false - } - return true -} - -func (r1 *MX) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MX) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Mx, r2.Mx) { - return false - } - return true -} - -func (r1 *NAPTR) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NAPTR) - if !ok { - return false - } - _ = r2 - if r1.Order != r2.Order { - return false - } - if r1.Preference != r2.Preference { - return false - } - if r1.Flags != r2.Flags { - return false - } - if r1.Service != r2.Service { - return false - } - if r1.Regexp != r2.Regexp { - return false - } - if !isDuplicateName(r1.Replacement, r2.Replacement) { - return false - } - return true -} - -func (r1 *NID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NID) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if r1.NodeID != r2.NodeID { - return false - } - return true -} - -func (r1 *NIMLOC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NIMLOC) - if !ok { - return false - } - _ = r2 - if r1.Locator != r2.Locator { - return false - } - return true -} - -func (r1 *NINFO) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NINFO) - if !ok { - return false - } - _ = r2 - if len(r1.ZSData) != len(r2.ZSData) { - return false - } - for i := 0; i < len(r1.ZSData); i++ { - if r1.ZSData[i] != r2.ZSData[i] { - return false - } - } - return true -} - -func (r1 *NS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NS) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Ns, r2.Ns) { - return false - } - return true -} - -func (r1 *NSAPPTR) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NSAPPTR) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Ptr, r2.Ptr) { - return false - } - return true -} - -func (r1 *NSEC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NSEC) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.NextDomain, r2.NextDomain) { - return false - } - if len(r1.TypeBitMap) != len(r2.TypeBitMap) { - return false - } - for i := 0; i < len(r1.TypeBitMap); i++ { - if r1.TypeBitMap[i] != r2.TypeBitMap[i] { - return false - } - } - return true -} - -func (r1 *NSEC3) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NSEC3) - if !ok { - return false - } - _ = r2 - if r1.Hash != r2.Hash { - return false - } - if r1.Flags != r2.Flags { - return false - } - if r1.Iterations != r2.Iterations { - return false - } - if r1.SaltLength != r2.SaltLength { - return false - } - if r1.Salt != r2.Salt { - return false - } - if r1.HashLength != r2.HashLength { - return false - } - if r1.NextDomain != r2.NextDomain { - return false - } - if len(r1.TypeBitMap) != len(r2.TypeBitMap) { - return false - } - for i := 0; i < len(r1.TypeBitMap); i++ { - if r1.TypeBitMap[i] != r2.TypeBitMap[i] { - return false - } - } - return true -} - -func (r1 *NSEC3PARAM) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NSEC3PARAM) - if !ok { - return false - } - _ = r2 - if r1.Hash != r2.Hash { - return false - } - if r1.Flags != r2.Flags { - return false - } - if r1.Iterations != r2.Iterations { - return false - } - if r1.SaltLength != r2.SaltLength { - return false - } - if r1.Salt != r2.Salt { - return false - } - return true -} - -func (r1 *NULL) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NULL) - if !ok { - return false - } - _ = r2 - if r1.Data != r2.Data { - return false - } - return true -} - -func (r1 *OPENPGPKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*OPENPGPKEY) - if !ok { - return false - } - _ = r2 - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *PTR) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*PTR) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Ptr, r2.Ptr) { - return false - } - return true -} - -func (r1 *PX) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*PX) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Map822, r2.Map822) { - return false - } - if !isDuplicateName(r1.Mapx400, r2.Mapx400) { - return false - } - return true -} - -func (r1 *RFC3597) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RFC3597) - if !ok { - return false - } - _ = r2 - if r1.Rdata != r2.Rdata { - return false - } - return true -} - -func (r1 *RKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RKEY) - if !ok { - return false - } - _ = r2 - if r1.Flags != r2.Flags { - return false - } - if r1.Protocol != r2.Protocol { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *RP) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RP) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mbox, r2.Mbox) { - return false - } - if !isDuplicateName(r1.Txt, r2.Txt) { - return false - } - return true -} - -func (r1 *RRSIG) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RRSIG) - if !ok { - return false - } - _ = r2 - if r1.TypeCovered != r2.TypeCovered { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.Labels != r2.Labels { - return false - } - if r1.OrigTtl != r2.OrigTtl { - return false - } - if r1.Expiration != r2.Expiration { - return false - } - if r1.Inception != r2.Inception { - return false - } - if r1.KeyTag != r2.KeyTag { - return false - } - if !isDuplicateName(r1.SignerName, r2.SignerName) { - return false - } - if r1.Signature != r2.Signature { - return false - } - return true -} - -func (r1 *RT) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RT) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Host, r2.Host) { - return false - } - return true -} - -func (r1 *SIG) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SIG) - if !ok { - return false - } - _ = r2 - if r1.TypeCovered != r2.TypeCovered { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.Labels != r2.Labels { - return false - } - if r1.OrigTtl != r2.OrigTtl { - return false - } - if r1.Expiration != r2.Expiration { - return false - } - if r1.Inception != r2.Inception { - return false - } - if r1.KeyTag != r2.KeyTag { - return false - } - if !isDuplicateName(r1.SignerName, r2.SignerName) { - return false - } - if r1.Signature != r2.Signature { - return false - } - return true -} - -func (r1 *SMIMEA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SMIMEA) - if !ok { - return false - } - _ = r2 - if r1.Usage != r2.Usage { - return false - } - if r1.Selector != r2.Selector { - return false - } - if r1.MatchingType != r2.MatchingType { - return false - } - if r1.Certificate != r2.Certificate { - return false - } - return true -} - -func (r1 *SOA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SOA) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Ns, r2.Ns) { - return false - } - if !isDuplicateName(r1.Mbox, r2.Mbox) { - return false - } - if r1.Serial != r2.Serial { - return false - } - if r1.Refresh != r2.Refresh { - return false - } - if r1.Retry != r2.Retry { - return false - } - if r1.Expire != r2.Expire { - return false - } - if r1.Minttl != r2.Minttl { - return false - } - return true -} - -func (r1 *SPF) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SPF) - if !ok { - return false - } - _ = r2 - if len(r1.Txt) != len(r2.Txt) { - return false - } - for i := 0; i < len(r1.Txt); i++ { - if r1.Txt[i] != r2.Txt[i] { - return false - } - } - return true -} - -func (r1 *SRV) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SRV) - if !ok { - return false - } - _ = r2 - if r1.Priority != r2.Priority { - return false - } - if r1.Weight != r2.Weight { - return false - } - if r1.Port != r2.Port { - return false - } - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - return true -} - -func (r1 *SSHFP) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SSHFP) - if !ok { - return false - } - _ = r2 - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.Type != r2.Type { - return false - } - if r1.FingerPrint != r2.FingerPrint { - return false - } - return true -} - -func (r1 *SVCB) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SVCB) - if !ok { - return false - } - _ = r2 - if r1.Priority != r2.Priority { - return false - } - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - if len(r1.Value) != len(r2.Value) { - return false - } - if !areSVCBPairArraysEqual(r1.Value, r2.Value) { - return false - } - return true -} - -func (r1 *TA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TA) - if !ok { - return false - } - _ = r2 - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.DigestType != r2.DigestType { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *TALINK) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TALINK) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.PreviousName, r2.PreviousName) { - return false - } - if !isDuplicateName(r1.NextName, r2.NextName) { - return false - } - return true -} - -func (r1 *TKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TKEY) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Algorithm, r2.Algorithm) { - return false - } - if r1.Inception != r2.Inception { - return false - } - if r1.Expiration != r2.Expiration { - return false - } - if r1.Mode != r2.Mode { - return false - } - if r1.Error != r2.Error { - return false - } - if r1.KeySize != r2.KeySize { - return false - } - if r1.Key != r2.Key { - return false - } - if r1.OtherLen != r2.OtherLen { - return false - } - if r1.OtherData != r2.OtherData { - return false - } - return true -} - -func (r1 *TLSA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TLSA) - if !ok { - return false - } - _ = r2 - if r1.Usage != r2.Usage { - return false - } - if r1.Selector != r2.Selector { - return false - } - if r1.MatchingType != r2.MatchingType { - return false - } - if r1.Certificate != r2.Certificate { - return false - } - return true -} - -func (r1 *TSIG) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TSIG) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Algorithm, r2.Algorithm) { - return false - } - if r1.TimeSigned != r2.TimeSigned { - return false - } - if r1.Fudge != r2.Fudge { - return false - } - if r1.MACSize != r2.MACSize { - return false - } - if r1.MAC != r2.MAC { - return false - } - if r1.OrigId != r2.OrigId { - return false - } - if r1.Error != r2.Error { - return false - } - if r1.OtherLen != r2.OtherLen { - return false - } - if r1.OtherData != r2.OtherData { - return false - } - return true -} - -func (r1 *TXT) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TXT) - if !ok { - return false - } - _ = r2 - if len(r1.Txt) != len(r2.Txt) { - return false - } - for i := 0; i < len(r1.Txt); i++ { - if r1.Txt[i] != r2.Txt[i] { - return false - } - } - return true -} - -func (r1 *UID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*UID) - if !ok { - return false - } - _ = r2 - if r1.Uid != r2.Uid { - return false - } - return true -} - -func (r1 *UINFO) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*UINFO) - if !ok { - return false - } - _ = r2 - if r1.Uinfo != r2.Uinfo { - return false - } - return true -} - -func (r1 *URI) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*URI) - if !ok { - return false - } - _ = r2 - if r1.Priority != r2.Priority { - return false - } - if r1.Weight != r2.Weight { - return false - } - if r1.Target != r2.Target { - return false - } - return true -} - -func (r1 *X25) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*X25) - if !ok { - return false - } - _ = r2 - if r1.PSDNAddress != r2.PSDNAddress { - return false - } - return true -} - -func (r1 *ZONEMD) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*ZONEMD) - if !ok { - return false - } - _ = r2 - if r1.Serial != r2.Serial { - return false - } - if r1.Scheme != r2.Scheme { - return false - } - if r1.Hash != r2.Hash { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} diff --git a/vendor/github.com/miekg/dns/zmsg.go b/vendor/github.com/miekg/dns/zmsg.go deleted file mode 100644 index fc0822f982..0000000000 --- a/vendor/github.com/miekg/dns/zmsg.go +++ /dev/null @@ -1,2875 +0,0 @@ -// Code generated by "go run msg_generate.go"; DO NOT EDIT. - -package dns - -// pack*() functions - -func (rr *A) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDataA(rr.A, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AAAA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDataAAAA(rr.AAAA, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AFSDB) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Subtype, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Hostname, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *ANY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - return off, nil -} - -func (rr *APL) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDataApl(rr.Prefixes, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AVC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringTxt(rr.Txt, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CAA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Flag, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Tag, msg, off) - if err != nil { - return off, err - } - off, err = packStringOctet(rr.Value, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CDNSKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CDS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.DigestType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CERT) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Type, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.Certificate, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CNAME) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Target, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CSYNC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint32(rr.Serial, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packDataNsec(rr.TypeBitMap, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DHCID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringBase64(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DLV) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.DigestType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DNAME) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Target, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DNSKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.DigestType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *EID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringHex(rr.Endpoint, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *EUI48) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint48(rr.Address, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *EUI64) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint64(rr.Address, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *GID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint32(rr.Gid, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *GPOS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packString(rr.Longitude, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Latitude, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Altitude, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *HINFO) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packString(rr.Cpu, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Os, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *HIP) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.HitLength, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.PublicKeyAlgorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.PublicKeyLength, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Hit, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - off, err = packDataDomainNames(rr.RendezvousServers, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *HTTPS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Priority, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Target, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDataSVCB(rr.Value, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *KEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *KX) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Exchanger, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *L32) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDataA(rr.Locator32, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *L64) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packUint64(rr.Locator64, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *LOC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Version, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Size, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.HorizPre, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.VertPre, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Latitude, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Longitude, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Altitude, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *LP) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Fqdn, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MB) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mb, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MD) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Md, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MF) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mf, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MG) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mg, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MINFO) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Rmail, msg, off, compression, compress) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Email, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MR) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mr, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MX) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Mx, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NAPTR) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Order, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Service, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Regexp, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Replacement, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packUint64(rr.NodeID, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NIMLOC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringHex(rr.Locator, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NINFO) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringTxt(rr.ZSData, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Ns, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSAPPTR) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Ptr, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSEC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.NextDomain, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDataNsec(rr.TypeBitMap, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSEC3) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Hash, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Iterations, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.SaltLength, msg, off) - if err != nil { - return off, err - } - // Only pack salt if value is not "-", i.e. empty - if rr.Salt != "-" { - off, err = packStringHex(rr.Salt, msg, off) - if err != nil { - return off, err - } - } - off, err = packUint8(rr.HashLength, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase32(rr.NextDomain, msg, off) - if err != nil { - return off, err - } - off, err = packDataNsec(rr.TypeBitMap, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSEC3PARAM) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Hash, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Iterations, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.SaltLength, msg, off) - if err != nil { - return off, err - } - // Only pack salt if value is not "-", i.e. empty - if rr.Salt != "-" { - off, err = packStringHex(rr.Salt, msg, off) - if err != nil { - return off, err - } - } - return off, nil -} - -func (rr *NULL) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringAny(rr.Data, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *OPENPGPKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *OPT) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDataOpt(rr.Option, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *PTR) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Ptr, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *PX) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Map822, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Mapx400, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RFC3597) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringHex(rr.Rdata, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RP) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mbox, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Txt, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RRSIG) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.TypeCovered, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Labels, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.OrigTtl, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Expiration, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Inception, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.SignerName, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.Signature, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RT) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Host, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SIG) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.TypeCovered, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Labels, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.OrigTtl, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Expiration, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Inception, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.SignerName, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.Signature, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SMIMEA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Usage, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Selector, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.MatchingType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Certificate, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SOA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Ns, msg, off, compression, compress) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Mbox, msg, off, compression, compress) - if err != nil { - return off, err - } - off, err = packUint32(rr.Serial, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Refresh, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Retry, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Expire, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Minttl, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SPF) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringTxt(rr.Txt, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SRV) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Priority, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Weight, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Port, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Target, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SSHFP) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Type, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.FingerPrint, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SVCB) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Priority, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Target, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDataSVCB(rr.Value, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.DigestType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TALINK) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.PreviousName, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDomainName(rr.NextName, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Algorithm, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packUint32(rr.Inception, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Expiration, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Mode, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Error, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.KeySize, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Key, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.OtherLen, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.OtherData, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TLSA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Usage, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Selector, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.MatchingType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Certificate, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TSIG) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Algorithm, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packUint48(rr.TimeSigned, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Fudge, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.MACSize, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.MAC, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.OrigId, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Error, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.OtherLen, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.OtherData, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TXT) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringTxt(rr.Txt, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *UID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint32(rr.Uid, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *UINFO) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packString(rr.Uinfo, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *URI) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Priority, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Weight, msg, off) - if err != nil { - return off, err - } - off, err = packStringOctet(rr.Target, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *X25) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packString(rr.PSDNAddress, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *ZONEMD) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint32(rr.Serial, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Scheme, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Hash, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -// unpack*() functions - -func (rr *A) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.A, off, err = unpackDataA(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AAAA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.AAAA, off, err = unpackDataAAAA(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AFSDB) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Subtype, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Hostname, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *ANY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - return off, nil -} - -func (rr *APL) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Prefixes, off, err = unpackDataApl(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AVC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Txt, off, err = unpackStringTxt(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CAA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flag, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Tag, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Value, off, err = unpackStringOctet(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CDNSKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Protocol, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CDS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.DigestType, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CERT) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Type, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Certificate, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CNAME) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CSYNC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Serial, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.TypeBitMap, off, err = unpackDataNsec(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DHCID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Digest, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DLV) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.DigestType, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DNAME) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DNSKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Protocol, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.DigestType, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *EID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Endpoint, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *EUI48) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Address, off, err = unpackUint48(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *EUI64) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Address, off, err = unpackUint64(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *GID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Gid, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *GPOS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Longitude, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Latitude, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Altitude, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *HINFO) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Cpu, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Os, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *HIP) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.HitLength, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.PublicKeyAlgorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.PublicKeyLength, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Hit, off, err = unpackStringHex(msg, off, off+int(rr.HitLength)) - if err != nil { - return off, err - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, off+int(rr.PublicKeyLength)) - if err != nil { - return off, err - } - rr.RendezvousServers, off, err = unpackDataDomainNames(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *HTTPS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Priority, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Value, off, err = unpackDataSVCB(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *KEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Protocol, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *KX) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Exchanger, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *L32) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Locator32, off, err = unpackDataA(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *L64) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Locator64, off, err = unpackUint64(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *LOC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Version, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Size, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.HorizPre, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.VertPre, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Latitude, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Longitude, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Altitude, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *LP) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Fqdn, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MB) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mb, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MD) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Md, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MF) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mf, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MG) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mg, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MINFO) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Rmail, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Email, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MR) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mr, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MX) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Mx, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NAPTR) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Order, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Flags, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Service, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Regexp, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Replacement, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.NodeID, off, err = unpackUint64(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NIMLOC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Locator, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NINFO) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.ZSData, off, err = unpackStringTxt(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Ns, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSAPPTR) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Ptr, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSEC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.NextDomain, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.TypeBitMap, off, err = unpackDataNsec(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSEC3) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Hash, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Flags, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Iterations, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.SaltLength, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Salt, off, err = unpackStringHex(msg, off, off+int(rr.SaltLength)) - if err != nil { - return off, err - } - rr.HashLength, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.NextDomain, off, err = unpackStringBase32(msg, off, off+int(rr.HashLength)) - if err != nil { - return off, err - } - rr.TypeBitMap, off, err = unpackDataNsec(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSEC3PARAM) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Hash, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Flags, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Iterations, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.SaltLength, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Salt, off, err = unpackStringHex(msg, off, off+int(rr.SaltLength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NULL) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Data, off, err = unpackStringAny(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *OPENPGPKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *OPT) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Option, off, err = unpackDataOpt(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *PTR) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Ptr, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *PX) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Map822, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Mapx400, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RFC3597) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Rdata, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Protocol, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RP) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mbox, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Txt, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RRSIG) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.TypeCovered, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Labels, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.OrigTtl, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Expiration, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Inception, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.SignerName, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Signature, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RT) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Host, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SIG) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.TypeCovered, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Labels, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.OrigTtl, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Expiration, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Inception, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.SignerName, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Signature, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SMIMEA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Usage, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Selector, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.MatchingType, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Certificate, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SOA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Ns, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Mbox, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Serial, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Refresh, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Retry, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Expire, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Minttl, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SPF) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Txt, off, err = unpackStringTxt(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SRV) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Priority, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Weight, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Port, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SSHFP) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Type, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.FingerPrint, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SVCB) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Priority, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Value, off, err = unpackDataSVCB(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.DigestType, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TALINK) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.PreviousName, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.NextName, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Algorithm, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Inception, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Expiration, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Mode, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Error, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.KeySize, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Key, off, err = unpackStringHex(msg, off, off+int(rr.KeySize)) - if err != nil { - return off, err - } - rr.OtherLen, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.OtherData, off, err = unpackStringHex(msg, off, off+int(rr.OtherLen)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TLSA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Usage, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Selector, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.MatchingType, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Certificate, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TSIG) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Algorithm, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.TimeSigned, off, err = unpackUint48(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Fudge, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.MACSize, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.MAC, off, err = unpackStringHex(msg, off, off+int(rr.MACSize)) - if err != nil { - return off, err - } - rr.OrigId, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Error, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.OtherLen, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.OtherData, off, err = unpackStringHex(msg, off, off+int(rr.OtherLen)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TXT) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Txt, off, err = unpackStringTxt(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *UID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Uid, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *UINFO) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Uinfo, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *URI) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Priority, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Weight, off, err = unpackUint16(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Target, off, err = unpackStringOctet(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *X25) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.PSDNAddress, off, err = unpackString(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *ZONEMD) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Serial, off, err = unpackUint32(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Scheme, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Hash, off, err = unpackUint8(msg, off) - if err != nil { - return off, err - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, err - } - return off, nil -} diff --git a/vendor/github.com/miekg/dns/ztypes.go b/vendor/github.com/miekg/dns/ztypes.go deleted file mode 100644 index 5d060cfee1..0000000000 --- a/vendor/github.com/miekg/dns/ztypes.go +++ /dev/null @@ -1,952 +0,0 @@ -// Code generated by "go run types_generate.go"; DO NOT EDIT. - -package dns - -import ( - "encoding/base64" - "net" -) - -// TypeToRR is a map of constructors for each RR type. -var TypeToRR = map[uint16]func() RR{ - TypeA: func() RR { return new(A) }, - TypeAAAA: func() RR { return new(AAAA) }, - TypeAFSDB: func() RR { return new(AFSDB) }, - TypeANY: func() RR { return new(ANY) }, - TypeAPL: func() RR { return new(APL) }, - TypeAVC: func() RR { return new(AVC) }, - TypeCAA: func() RR { return new(CAA) }, - TypeCDNSKEY: func() RR { return new(CDNSKEY) }, - TypeCDS: func() RR { return new(CDS) }, - TypeCERT: func() RR { return new(CERT) }, - TypeCNAME: func() RR { return new(CNAME) }, - TypeCSYNC: func() RR { return new(CSYNC) }, - TypeDHCID: func() RR { return new(DHCID) }, - TypeDLV: func() RR { return new(DLV) }, - TypeDNAME: func() RR { return new(DNAME) }, - TypeDNSKEY: func() RR { return new(DNSKEY) }, - TypeDS: func() RR { return new(DS) }, - TypeEID: func() RR { return new(EID) }, - TypeEUI48: func() RR { return new(EUI48) }, - TypeEUI64: func() RR { return new(EUI64) }, - TypeGID: func() RR { return new(GID) }, - TypeGPOS: func() RR { return new(GPOS) }, - TypeHINFO: func() RR { return new(HINFO) }, - TypeHIP: func() RR { return new(HIP) }, - TypeHTTPS: func() RR { return new(HTTPS) }, - TypeKEY: func() RR { return new(KEY) }, - TypeKX: func() RR { return new(KX) }, - TypeL32: func() RR { return new(L32) }, - TypeL64: func() RR { return new(L64) }, - TypeLOC: func() RR { return new(LOC) }, - TypeLP: func() RR { return new(LP) }, - TypeMB: func() RR { return new(MB) }, - TypeMD: func() RR { return new(MD) }, - TypeMF: func() RR { return new(MF) }, - TypeMG: func() RR { return new(MG) }, - TypeMINFO: func() RR { return new(MINFO) }, - TypeMR: func() RR { return new(MR) }, - TypeMX: func() RR { return new(MX) }, - TypeNAPTR: func() RR { return new(NAPTR) }, - TypeNID: func() RR { return new(NID) }, - TypeNIMLOC: func() RR { return new(NIMLOC) }, - TypeNINFO: func() RR { return new(NINFO) }, - TypeNS: func() RR { return new(NS) }, - TypeNSAPPTR: func() RR { return new(NSAPPTR) }, - TypeNSEC: func() RR { return new(NSEC) }, - TypeNSEC3: func() RR { return new(NSEC3) }, - TypeNSEC3PARAM: func() RR { return new(NSEC3PARAM) }, - TypeNULL: func() RR { return new(NULL) }, - TypeOPENPGPKEY: func() RR { return new(OPENPGPKEY) }, - TypeOPT: func() RR { return new(OPT) }, - TypePTR: func() RR { return new(PTR) }, - TypePX: func() RR { return new(PX) }, - TypeRKEY: func() RR { return new(RKEY) }, - TypeRP: func() RR { return new(RP) }, - TypeRRSIG: func() RR { return new(RRSIG) }, - TypeRT: func() RR { return new(RT) }, - TypeSIG: func() RR { return new(SIG) }, - TypeSMIMEA: func() RR { return new(SMIMEA) }, - TypeSOA: func() RR { return new(SOA) }, - TypeSPF: func() RR { return new(SPF) }, - TypeSRV: func() RR { return new(SRV) }, - TypeSSHFP: func() RR { return new(SSHFP) }, - TypeSVCB: func() RR { return new(SVCB) }, - TypeTA: func() RR { return new(TA) }, - TypeTALINK: func() RR { return new(TALINK) }, - TypeTKEY: func() RR { return new(TKEY) }, - TypeTLSA: func() RR { return new(TLSA) }, - TypeTSIG: func() RR { return new(TSIG) }, - TypeTXT: func() RR { return new(TXT) }, - TypeUID: func() RR { return new(UID) }, - TypeUINFO: func() RR { return new(UINFO) }, - TypeURI: func() RR { return new(URI) }, - TypeX25: func() RR { return new(X25) }, - TypeZONEMD: func() RR { return new(ZONEMD) }, -} - -// TypeToString is a map of strings for each RR type. -var TypeToString = map[uint16]string{ - TypeA: "A", - TypeAAAA: "AAAA", - TypeAFSDB: "AFSDB", - TypeANY: "ANY", - TypeAPL: "APL", - TypeATMA: "ATMA", - TypeAVC: "AVC", - TypeAXFR: "AXFR", - TypeCAA: "CAA", - TypeCDNSKEY: "CDNSKEY", - TypeCDS: "CDS", - TypeCERT: "CERT", - TypeCNAME: "CNAME", - TypeCSYNC: "CSYNC", - TypeDHCID: "DHCID", - TypeDLV: "DLV", - TypeDNAME: "DNAME", - TypeDNSKEY: "DNSKEY", - TypeDS: "DS", - TypeEID: "EID", - TypeEUI48: "EUI48", - TypeEUI64: "EUI64", - TypeGID: "GID", - TypeGPOS: "GPOS", - TypeHINFO: "HINFO", - TypeHIP: "HIP", - TypeHTTPS: "HTTPS", - TypeISDN: "ISDN", - TypeIXFR: "IXFR", - TypeKEY: "KEY", - TypeKX: "KX", - TypeL32: "L32", - TypeL64: "L64", - TypeLOC: "LOC", - TypeLP: "LP", - TypeMAILA: "MAILA", - TypeMAILB: "MAILB", - TypeMB: "MB", - TypeMD: "MD", - TypeMF: "MF", - TypeMG: "MG", - TypeMINFO: "MINFO", - TypeMR: "MR", - TypeMX: "MX", - TypeNAPTR: "NAPTR", - TypeNID: "NID", - TypeNIMLOC: "NIMLOC", - TypeNINFO: "NINFO", - TypeNS: "NS", - TypeNSEC: "NSEC", - TypeNSEC3: "NSEC3", - TypeNSEC3PARAM: "NSEC3PARAM", - TypeNULL: "NULL", - TypeNXT: "NXT", - TypeNone: "None", - TypeOPENPGPKEY: "OPENPGPKEY", - TypeOPT: "OPT", - TypePTR: "PTR", - TypePX: "PX", - TypeRKEY: "RKEY", - TypeRP: "RP", - TypeRRSIG: "RRSIG", - TypeRT: "RT", - TypeReserved: "Reserved", - TypeSIG: "SIG", - TypeSMIMEA: "SMIMEA", - TypeSOA: "SOA", - TypeSPF: "SPF", - TypeSRV: "SRV", - TypeSSHFP: "SSHFP", - TypeSVCB: "SVCB", - TypeTA: "TA", - TypeTALINK: "TALINK", - TypeTKEY: "TKEY", - TypeTLSA: "TLSA", - TypeTSIG: "TSIG", - TypeTXT: "TXT", - TypeUID: "UID", - TypeUINFO: "UINFO", - TypeUNSPEC: "UNSPEC", - TypeURI: "URI", - TypeX25: "X25", - TypeZONEMD: "ZONEMD", - TypeNSAPPTR: "NSAP-PTR", -} - -func (rr *A) Header() *RR_Header { return &rr.Hdr } -func (rr *AAAA) Header() *RR_Header { return &rr.Hdr } -func (rr *AFSDB) Header() *RR_Header { return &rr.Hdr } -func (rr *ANY) Header() *RR_Header { return &rr.Hdr } -func (rr *APL) Header() *RR_Header { return &rr.Hdr } -func (rr *AVC) Header() *RR_Header { return &rr.Hdr } -func (rr *CAA) Header() *RR_Header { return &rr.Hdr } -func (rr *CDNSKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *CDS) Header() *RR_Header { return &rr.Hdr } -func (rr *CERT) Header() *RR_Header { return &rr.Hdr } -func (rr *CNAME) Header() *RR_Header { return &rr.Hdr } -func (rr *CSYNC) Header() *RR_Header { return &rr.Hdr } -func (rr *DHCID) Header() *RR_Header { return &rr.Hdr } -func (rr *DLV) Header() *RR_Header { return &rr.Hdr } -func (rr *DNAME) Header() *RR_Header { return &rr.Hdr } -func (rr *DNSKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *DS) Header() *RR_Header { return &rr.Hdr } -func (rr *EID) Header() *RR_Header { return &rr.Hdr } -func (rr *EUI48) Header() *RR_Header { return &rr.Hdr } -func (rr *EUI64) Header() *RR_Header { return &rr.Hdr } -func (rr *GID) Header() *RR_Header { return &rr.Hdr } -func (rr *GPOS) Header() *RR_Header { return &rr.Hdr } -func (rr *HINFO) Header() *RR_Header { return &rr.Hdr } -func (rr *HIP) Header() *RR_Header { return &rr.Hdr } -func (rr *HTTPS) Header() *RR_Header { return &rr.Hdr } -func (rr *KEY) Header() *RR_Header { return &rr.Hdr } -func (rr *KX) Header() *RR_Header { return &rr.Hdr } -func (rr *L32) Header() *RR_Header { return &rr.Hdr } -func (rr *L64) Header() *RR_Header { return &rr.Hdr } -func (rr *LOC) Header() *RR_Header { return &rr.Hdr } -func (rr *LP) Header() *RR_Header { return &rr.Hdr } -func (rr *MB) Header() *RR_Header { return &rr.Hdr } -func (rr *MD) Header() *RR_Header { return &rr.Hdr } -func (rr *MF) Header() *RR_Header { return &rr.Hdr } -func (rr *MG) Header() *RR_Header { return &rr.Hdr } -func (rr *MINFO) Header() *RR_Header { return &rr.Hdr } -func (rr *MR) Header() *RR_Header { return &rr.Hdr } -func (rr *MX) Header() *RR_Header { return &rr.Hdr } -func (rr *NAPTR) Header() *RR_Header { return &rr.Hdr } -func (rr *NID) Header() *RR_Header { return &rr.Hdr } -func (rr *NIMLOC) Header() *RR_Header { return &rr.Hdr } -func (rr *NINFO) Header() *RR_Header { return &rr.Hdr } -func (rr *NS) Header() *RR_Header { return &rr.Hdr } -func (rr *NSAPPTR) Header() *RR_Header { return &rr.Hdr } -func (rr *NSEC) Header() *RR_Header { return &rr.Hdr } -func (rr *NSEC3) Header() *RR_Header { return &rr.Hdr } -func (rr *NSEC3PARAM) Header() *RR_Header { return &rr.Hdr } -func (rr *NULL) Header() *RR_Header { return &rr.Hdr } -func (rr *OPENPGPKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *OPT) Header() *RR_Header { return &rr.Hdr } -func (rr *PTR) Header() *RR_Header { return &rr.Hdr } -func (rr *PX) Header() *RR_Header { return &rr.Hdr } -func (rr *RFC3597) Header() *RR_Header { return &rr.Hdr } -func (rr *RKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *RP) Header() *RR_Header { return &rr.Hdr } -func (rr *RRSIG) Header() *RR_Header { return &rr.Hdr } -func (rr *RT) Header() *RR_Header { return &rr.Hdr } -func (rr *SIG) Header() *RR_Header { return &rr.Hdr } -func (rr *SMIMEA) Header() *RR_Header { return &rr.Hdr } -func (rr *SOA) Header() *RR_Header { return &rr.Hdr } -func (rr *SPF) Header() *RR_Header { return &rr.Hdr } -func (rr *SRV) Header() *RR_Header { return &rr.Hdr } -func (rr *SSHFP) Header() *RR_Header { return &rr.Hdr } -func (rr *SVCB) Header() *RR_Header { return &rr.Hdr } -func (rr *TA) Header() *RR_Header { return &rr.Hdr } -func (rr *TALINK) Header() *RR_Header { return &rr.Hdr } -func (rr *TKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *TLSA) Header() *RR_Header { return &rr.Hdr } -func (rr *TSIG) Header() *RR_Header { return &rr.Hdr } -func (rr *TXT) Header() *RR_Header { return &rr.Hdr } -func (rr *UID) Header() *RR_Header { return &rr.Hdr } -func (rr *UINFO) Header() *RR_Header { return &rr.Hdr } -func (rr *URI) Header() *RR_Header { return &rr.Hdr } -func (rr *X25) Header() *RR_Header { return &rr.Hdr } -func (rr *ZONEMD) Header() *RR_Header { return &rr.Hdr } - -// len() functions -func (rr *A) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - if len(rr.A) != 0 { - l += net.IPv4len - } - return l -} -func (rr *AAAA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - if len(rr.AAAA) != 0 { - l += net.IPv6len - } - return l -} -func (rr *AFSDB) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Subtype - l += domainNameLen(rr.Hostname, off+l, compression, false) - return l -} -func (rr *ANY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - return l -} -func (rr *APL) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.Prefixes { - l += x.len() - } - return l -} -func (rr *AVC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.Txt { - l += len(x) + 1 - } - return l -} -func (rr *CAA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Flag - l += len(rr.Tag) + 1 - l += len(rr.Value) - return l -} -func (rr *CERT) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Type - l += 2 // KeyTag - l++ // Algorithm - l += base64.StdEncoding.DecodedLen(len(rr.Certificate)) - return l -} -func (rr *CNAME) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Target, off+l, compression, true) - return l -} -func (rr *DHCID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += base64.StdEncoding.DecodedLen(len(rr.Digest)) - return l -} -func (rr *DNAME) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Target, off+l, compression, false) - return l -} -func (rr *DNSKEY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Flags - l++ // Protocol - l++ // Algorithm - l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) - return l -} -func (rr *DS) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // KeyTag - l++ // Algorithm - l++ // DigestType - l += len(rr.Digest) / 2 - return l -} -func (rr *EID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Endpoint) / 2 - return l -} -func (rr *EUI48) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 6 // Address - return l -} -func (rr *EUI64) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 8 // Address - return l -} -func (rr *GID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 4 // Gid - return l -} -func (rr *GPOS) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Longitude) + 1 - l += len(rr.Latitude) + 1 - l += len(rr.Altitude) + 1 - return l -} -func (rr *HINFO) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Cpu) + 1 - l += len(rr.Os) + 1 - return l -} -func (rr *HIP) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // HitLength - l++ // PublicKeyAlgorithm - l += 2 // PublicKeyLength - l += len(rr.Hit) / 2 - l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) - for _, x := range rr.RendezvousServers { - l += domainNameLen(x, off+l, compression, false) - } - return l -} -func (rr *KX) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Exchanger, off+l, compression, false) - return l -} -func (rr *L32) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - if len(rr.Locator32) != 0 { - l += net.IPv4len - } - return l -} -func (rr *L64) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += 8 // Locator64 - return l -} -func (rr *LOC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Version - l++ // Size - l++ // HorizPre - l++ // VertPre - l += 4 // Latitude - l += 4 // Longitude - l += 4 // Altitude - return l -} -func (rr *LP) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Fqdn, off+l, compression, false) - return l -} -func (rr *MB) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mb, off+l, compression, true) - return l -} -func (rr *MD) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Md, off+l, compression, true) - return l -} -func (rr *MF) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mf, off+l, compression, true) - return l -} -func (rr *MG) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mg, off+l, compression, true) - return l -} -func (rr *MINFO) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Rmail, off+l, compression, true) - l += domainNameLen(rr.Email, off+l, compression, true) - return l -} -func (rr *MR) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mr, off+l, compression, true) - return l -} -func (rr *MX) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Mx, off+l, compression, true) - return l -} -func (rr *NAPTR) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Order - l += 2 // Preference - l += len(rr.Flags) + 1 - l += len(rr.Service) + 1 - l += len(rr.Regexp) + 1 - l += domainNameLen(rr.Replacement, off+l, compression, false) - return l -} -func (rr *NID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += 8 // NodeID - return l -} -func (rr *NIMLOC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Locator) / 2 - return l -} -func (rr *NINFO) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.ZSData { - l += len(x) + 1 - } - return l -} -func (rr *NS) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Ns, off+l, compression, true) - return l -} -func (rr *NSAPPTR) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Ptr, off+l, compression, false) - return l -} -func (rr *NSEC3PARAM) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Hash - l++ // Flags - l += 2 // Iterations - l++ // SaltLength - l += len(rr.Salt) / 2 - return l -} -func (rr *NULL) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Data) - return l -} -func (rr *OPENPGPKEY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) - return l -} -func (rr *PTR) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Ptr, off+l, compression, true) - return l -} -func (rr *PX) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Map822, off+l, compression, false) - l += domainNameLen(rr.Mapx400, off+l, compression, false) - return l -} -func (rr *RFC3597) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Rdata) / 2 - return l -} -func (rr *RKEY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Flags - l++ // Protocol - l++ // Algorithm - l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) - return l -} -func (rr *RP) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mbox, off+l, compression, false) - l += domainNameLen(rr.Txt, off+l, compression, false) - return l -} -func (rr *RRSIG) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // TypeCovered - l++ // Algorithm - l++ // Labels - l += 4 // OrigTtl - l += 4 // Expiration - l += 4 // Inception - l += 2 // KeyTag - l += domainNameLen(rr.SignerName, off+l, compression, false) - l += base64.StdEncoding.DecodedLen(len(rr.Signature)) - return l -} -func (rr *RT) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Host, off+l, compression, false) - return l -} -func (rr *SMIMEA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Usage - l++ // Selector - l++ // MatchingType - l += len(rr.Certificate) / 2 - return l -} -func (rr *SOA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Ns, off+l, compression, true) - l += domainNameLen(rr.Mbox, off+l, compression, true) - l += 4 // Serial - l += 4 // Refresh - l += 4 // Retry - l += 4 // Expire - l += 4 // Minttl - return l -} -func (rr *SPF) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.Txt { - l += len(x) + 1 - } - return l -} -func (rr *SRV) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Priority - l += 2 // Weight - l += 2 // Port - l += domainNameLen(rr.Target, off+l, compression, false) - return l -} -func (rr *SSHFP) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Algorithm - l++ // Type - l += len(rr.FingerPrint) / 2 - return l -} -func (rr *SVCB) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Priority - l += domainNameLen(rr.Target, off+l, compression, false) - for _, x := range rr.Value { - l += 4 + int(x.len()) - } - return l -} -func (rr *TA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // KeyTag - l++ // Algorithm - l++ // DigestType - l += len(rr.Digest) / 2 - return l -} -func (rr *TALINK) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.PreviousName, off+l, compression, false) - l += domainNameLen(rr.NextName, off+l, compression, false) - return l -} -func (rr *TKEY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Algorithm, off+l, compression, false) - l += 4 // Inception - l += 4 // Expiration - l += 2 // Mode - l += 2 // Error - l += 2 // KeySize - l += len(rr.Key) / 2 - l += 2 // OtherLen - l += len(rr.OtherData) / 2 - return l -} -func (rr *TLSA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Usage - l++ // Selector - l++ // MatchingType - l += len(rr.Certificate) / 2 - return l -} -func (rr *TSIG) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Algorithm, off+l, compression, false) - l += 6 // TimeSigned - l += 2 // Fudge - l += 2 // MACSize - l += len(rr.MAC) / 2 - l += 2 // OrigId - l += 2 // Error - l += 2 // OtherLen - l += len(rr.OtherData) / 2 - return l -} -func (rr *TXT) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.Txt { - l += len(x) + 1 - } - return l -} -func (rr *UID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 4 // Uid - return l -} -func (rr *UINFO) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Uinfo) + 1 - return l -} -func (rr *URI) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Priority - l += 2 // Weight - l += len(rr.Target) - return l -} -func (rr *X25) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.PSDNAddress) + 1 - return l -} -func (rr *ZONEMD) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 4 // Serial - l++ // Scheme - l++ // Hash - l += len(rr.Digest) / 2 - return l -} - -// copy() functions -func (rr *A) copy() RR { - return &A{rr.Hdr, copyIP(rr.A)} -} -func (rr *AAAA) copy() RR { - return &AAAA{rr.Hdr, copyIP(rr.AAAA)} -} -func (rr *AFSDB) copy() RR { - return &AFSDB{rr.Hdr, rr.Subtype, rr.Hostname} -} -func (rr *ANY) copy() RR { - return &ANY{rr.Hdr} -} -func (rr *APL) copy() RR { - Prefixes := make([]APLPrefix, len(rr.Prefixes)) - for i, e := range rr.Prefixes { - Prefixes[i] = e.copy() - } - return &APL{rr.Hdr, Prefixes} -} -func (rr *AVC) copy() RR { - Txt := make([]string, len(rr.Txt)) - copy(Txt, rr.Txt) - return &AVC{rr.Hdr, Txt} -} -func (rr *CAA) copy() RR { - return &CAA{rr.Hdr, rr.Flag, rr.Tag, rr.Value} -} -func (rr *CDNSKEY) copy() RR { - return &CDNSKEY{*rr.DNSKEY.copy().(*DNSKEY)} -} -func (rr *CDS) copy() RR { - return &CDS{*rr.DS.copy().(*DS)} -} -func (rr *CERT) copy() RR { - return &CERT{rr.Hdr, rr.Type, rr.KeyTag, rr.Algorithm, rr.Certificate} -} -func (rr *CNAME) copy() RR { - return &CNAME{rr.Hdr, rr.Target} -} -func (rr *CSYNC) copy() RR { - TypeBitMap := make([]uint16, len(rr.TypeBitMap)) - copy(TypeBitMap, rr.TypeBitMap) - return &CSYNC{rr.Hdr, rr.Serial, rr.Flags, TypeBitMap} -} -func (rr *DHCID) copy() RR { - return &DHCID{rr.Hdr, rr.Digest} -} -func (rr *DLV) copy() RR { - return &DLV{*rr.DS.copy().(*DS)} -} -func (rr *DNAME) copy() RR { - return &DNAME{rr.Hdr, rr.Target} -} -func (rr *DNSKEY) copy() RR { - return &DNSKEY{rr.Hdr, rr.Flags, rr.Protocol, rr.Algorithm, rr.PublicKey} -} -func (rr *DS) copy() RR { - return &DS{rr.Hdr, rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest} -} -func (rr *EID) copy() RR { - return &EID{rr.Hdr, rr.Endpoint} -} -func (rr *EUI48) copy() RR { - return &EUI48{rr.Hdr, rr.Address} -} -func (rr *EUI64) copy() RR { - return &EUI64{rr.Hdr, rr.Address} -} -func (rr *GID) copy() RR { - return &GID{rr.Hdr, rr.Gid} -} -func (rr *GPOS) copy() RR { - return &GPOS{rr.Hdr, rr.Longitude, rr.Latitude, rr.Altitude} -} -func (rr *HINFO) copy() RR { - return &HINFO{rr.Hdr, rr.Cpu, rr.Os} -} -func (rr *HIP) copy() RR { - RendezvousServers := make([]string, len(rr.RendezvousServers)) - copy(RendezvousServers, rr.RendezvousServers) - return &HIP{rr.Hdr, rr.HitLength, rr.PublicKeyAlgorithm, rr.PublicKeyLength, rr.Hit, rr.PublicKey, RendezvousServers} -} -func (rr *HTTPS) copy() RR { - return &HTTPS{*rr.SVCB.copy().(*SVCB)} -} -func (rr *KEY) copy() RR { - return &KEY{*rr.DNSKEY.copy().(*DNSKEY)} -} -func (rr *KX) copy() RR { - return &KX{rr.Hdr, rr.Preference, rr.Exchanger} -} -func (rr *L32) copy() RR { - return &L32{rr.Hdr, rr.Preference, copyIP(rr.Locator32)} -} -func (rr *L64) copy() RR { - return &L64{rr.Hdr, rr.Preference, rr.Locator64} -} -func (rr *LOC) copy() RR { - return &LOC{rr.Hdr, rr.Version, rr.Size, rr.HorizPre, rr.VertPre, rr.Latitude, rr.Longitude, rr.Altitude} -} -func (rr *LP) copy() RR { - return &LP{rr.Hdr, rr.Preference, rr.Fqdn} -} -func (rr *MB) copy() RR { - return &MB{rr.Hdr, rr.Mb} -} -func (rr *MD) copy() RR { - return &MD{rr.Hdr, rr.Md} -} -func (rr *MF) copy() RR { - return &MF{rr.Hdr, rr.Mf} -} -func (rr *MG) copy() RR { - return &MG{rr.Hdr, rr.Mg} -} -func (rr *MINFO) copy() RR { - return &MINFO{rr.Hdr, rr.Rmail, rr.Email} -} -func (rr *MR) copy() RR { - return &MR{rr.Hdr, rr.Mr} -} -func (rr *MX) copy() RR { - return &MX{rr.Hdr, rr.Preference, rr.Mx} -} -func (rr *NAPTR) copy() RR { - return &NAPTR{rr.Hdr, rr.Order, rr.Preference, rr.Flags, rr.Service, rr.Regexp, rr.Replacement} -} -func (rr *NID) copy() RR { - return &NID{rr.Hdr, rr.Preference, rr.NodeID} -} -func (rr *NIMLOC) copy() RR { - return &NIMLOC{rr.Hdr, rr.Locator} -} -func (rr *NINFO) copy() RR { - ZSData := make([]string, len(rr.ZSData)) - copy(ZSData, rr.ZSData) - return &NINFO{rr.Hdr, ZSData} -} -func (rr *NS) copy() RR { - return &NS{rr.Hdr, rr.Ns} -} -func (rr *NSAPPTR) copy() RR { - return &NSAPPTR{rr.Hdr, rr.Ptr} -} -func (rr *NSEC) copy() RR { - TypeBitMap := make([]uint16, len(rr.TypeBitMap)) - copy(TypeBitMap, rr.TypeBitMap) - return &NSEC{rr.Hdr, rr.NextDomain, TypeBitMap} -} -func (rr *NSEC3) copy() RR { - TypeBitMap := make([]uint16, len(rr.TypeBitMap)) - copy(TypeBitMap, rr.TypeBitMap) - return &NSEC3{rr.Hdr, rr.Hash, rr.Flags, rr.Iterations, rr.SaltLength, rr.Salt, rr.HashLength, rr.NextDomain, TypeBitMap} -} -func (rr *NSEC3PARAM) copy() RR { - return &NSEC3PARAM{rr.Hdr, rr.Hash, rr.Flags, rr.Iterations, rr.SaltLength, rr.Salt} -} -func (rr *NULL) copy() RR { - return &NULL{rr.Hdr, rr.Data} -} -func (rr *OPENPGPKEY) copy() RR { - return &OPENPGPKEY{rr.Hdr, rr.PublicKey} -} -func (rr *OPT) copy() RR { - Option := make([]EDNS0, len(rr.Option)) - for i, e := range rr.Option { - Option[i] = e.copy() - } - return &OPT{rr.Hdr, Option} -} -func (rr *PTR) copy() RR { - return &PTR{rr.Hdr, rr.Ptr} -} -func (rr *PX) copy() RR { - return &PX{rr.Hdr, rr.Preference, rr.Map822, rr.Mapx400} -} -func (rr *RFC3597) copy() RR { - return &RFC3597{rr.Hdr, rr.Rdata} -} -func (rr *RKEY) copy() RR { - return &RKEY{rr.Hdr, rr.Flags, rr.Protocol, rr.Algorithm, rr.PublicKey} -} -func (rr *RP) copy() RR { - return &RP{rr.Hdr, rr.Mbox, rr.Txt} -} -func (rr *RRSIG) copy() RR { - return &RRSIG{rr.Hdr, rr.TypeCovered, rr.Algorithm, rr.Labels, rr.OrigTtl, rr.Expiration, rr.Inception, rr.KeyTag, rr.SignerName, rr.Signature} -} -func (rr *RT) copy() RR { - return &RT{rr.Hdr, rr.Preference, rr.Host} -} -func (rr *SIG) copy() RR { - return &SIG{*rr.RRSIG.copy().(*RRSIG)} -} -func (rr *SMIMEA) copy() RR { - return &SMIMEA{rr.Hdr, rr.Usage, rr.Selector, rr.MatchingType, rr.Certificate} -} -func (rr *SOA) copy() RR { - return &SOA{rr.Hdr, rr.Ns, rr.Mbox, rr.Serial, rr.Refresh, rr.Retry, rr.Expire, rr.Minttl} -} -func (rr *SPF) copy() RR { - Txt := make([]string, len(rr.Txt)) - copy(Txt, rr.Txt) - return &SPF{rr.Hdr, Txt} -} -func (rr *SRV) copy() RR { - return &SRV{rr.Hdr, rr.Priority, rr.Weight, rr.Port, rr.Target} -} -func (rr *SSHFP) copy() RR { - return &SSHFP{rr.Hdr, rr.Algorithm, rr.Type, rr.FingerPrint} -} -func (rr *SVCB) copy() RR { - Value := make([]SVCBKeyValue, len(rr.Value)) - for i, e := range rr.Value { - Value[i] = e.copy() - } - return &SVCB{rr.Hdr, rr.Priority, rr.Target, Value} -} -func (rr *TA) copy() RR { - return &TA{rr.Hdr, rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest} -} -func (rr *TALINK) copy() RR { - return &TALINK{rr.Hdr, rr.PreviousName, rr.NextName} -} -func (rr *TKEY) copy() RR { - return &TKEY{rr.Hdr, rr.Algorithm, rr.Inception, rr.Expiration, rr.Mode, rr.Error, rr.KeySize, rr.Key, rr.OtherLen, rr.OtherData} -} -func (rr *TLSA) copy() RR { - return &TLSA{rr.Hdr, rr.Usage, rr.Selector, rr.MatchingType, rr.Certificate} -} -func (rr *TSIG) copy() RR { - return &TSIG{rr.Hdr, rr.Algorithm, rr.TimeSigned, rr.Fudge, rr.MACSize, rr.MAC, rr.OrigId, rr.Error, rr.OtherLen, rr.OtherData} -} -func (rr *TXT) copy() RR { - Txt := make([]string, len(rr.Txt)) - copy(Txt, rr.Txt) - return &TXT{rr.Hdr, Txt} -} -func (rr *UID) copy() RR { - return &UID{rr.Hdr, rr.Uid} -} -func (rr *UINFO) copy() RR { - return &UINFO{rr.Hdr, rr.Uinfo} -} -func (rr *URI) copy() RR { - return &URI{rr.Hdr, rr.Priority, rr.Weight, rr.Target} -} -func (rr *X25) copy() RR { - return &X25{rr.Hdr, rr.PSDNAddress} -} -func (rr *ZONEMD) copy() RR { - return &ZONEMD{rr.Hdr, rr.Serial, rr.Scheme, rr.Hash, rr.Digest} -} |