/*- * Copyright 2016 Vsevolod Stakhov * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "config.h" #include "rspamd.h" #include "ottery.h" #include const char *test_upstream_list = "microsoft.com:443:1,google.com:80:2,kernel.org:443:3"; const char *new_upstream_list = "freebsd.org:80"; char test_key[32]; static void rspamd_upstream_test_method (struct upstream_list *ls, enum rspamd_upstream_rotation rot, const gchar *expected) { struct upstream *up; if (rot != RSPAMD_UPSTREAM_HASHED) { up = rspamd_upstream_get (ls, rot, NULL, 0); g_assert (up != NULL); g_assert (strcmp (rspamd_upstream_name (up), expected) == 0); } else { up = rspamd_upstream_get (ls, RSPAMD_UPSTREAM_HASHED, test_key, sizeof (test_key)); g_assert (up != NULL); g_assert (strcmp (rspamd_upstream_name (up), expected) == 0); } } static void rspamd_upstream_timeout_handler (int fd, short what, void *arg) { struct rspamd_dns_resolver *resolver = (struct rspamd_dns_resolver *)arg; rdns_resolver_release (resolver->r); } void rspamd_upstream_test_func (void) { struct upstream_list *ls, *nls; struct upstream *up, *upn; struct event_base *ev_base = event_init (); struct rspamd_dns_resolver *resolver; struct rspamd_config *cfg; gint i, success = 0; const gint assumptions = 100500; gdouble p; struct event ev; struct timeval tv; rspamd_inet_addr_t *addr, *next_addr, *paddr; cfg = rspamd_config_new (); cfg->dns_retransmits = 2; cfg->dns_timeout = 0.5; cfg->upstream_max_errors = 1; cfg->upstream_revive_time = 0.5; cfg->upstream_error_time = 2; resolver = dns_resolver_init (NULL, ev_base, cfg); rspamd_upstreams_library_config (cfg, cfg->ups_ctx, ev_base, resolver->r); /* * Test v4/v6 priorities */ nls = rspamd_upstreams_create (cfg->ups_ctx); g_assert (rspamd_upstreams_add_upstream (nls, "127.0.0.1", 0, RSPAMD_UPSTREAM_PARSE_DEFAULT, NULL)); up = rspamd_upstream_get (nls, RSPAMD_UPSTREAM_RANDOM, NULL, 0); rspamd_parse_inet_address (&paddr, "127.0.0.2", 0); g_assert (rspamd_upstream_add_addr (up, paddr)); rspamd_parse_inet_address (&paddr, "::1", 0); g_assert (rspamd_upstream_add_addr (up, paddr)); /* Rewind to start */ addr = rspamd_upstream_addr (up); addr = rspamd_upstream_addr (up); /* cur should be zero here */ addr = rspamd_upstream_addr (up); next_addr = rspamd_upstream_addr (up); g_assert (rspamd_inet_address_get_af (addr) == AF_INET); g_assert (rspamd_inet_address_get_af (next_addr) == AF_INET); next_addr = rspamd_upstream_addr (up); g_assert (rspamd_inet_address_get_af (next_addr) == AF_INET6); next_addr = rspamd_upstream_addr (up); g_assert (rspamd_inet_address_get_af (next_addr) == AF_INET); next_addr = rspamd_upstream_addr (up); g_assert (rspamd_inet_address_get_af (next_addr) == AF_INET); next_addr = rspamd_upstream_addr (up); g_assert (rspamd_inet_address_get_af (next_addr) == AF_INET6); /* Test errors with IPv6 */ rspamd_upstream_fail (up); /* Now we should have merely IPv4 addresses in rotation */ addr = rspamd_upstream_addr (up); for (i = 0; i < 256; i++) { next_addr = rspamd_upstream_addr (up); g_assert (rspamd_inet_address_get_af (addr) == AF_INET); g_assert (rspamd_inet_address_get_af (next_addr) == AF_INET); g_assert (rspamd_inet_address_compare (addr, next_addr) != 0); addr = next_addr; } rspamd_upstreams_destroy (nls); ls = rspamd_upstreams_create (cfg->ups_ctx); g_assert (rspamd_upstreams_parse_line (ls, test_upstream_list, 443, NULL)); g_assert (rspamd_upstreams_count (ls) == 3); /* Test master-slave rotation */ rspamd_upstream_test_method (ls, RSPAMD_UPSTREAM_MASTER_SLAVE, "kernel.org"); rspamd_upstream_test_method (ls, RSPAMD_UPSTREAM_MASTER_SLAVE, "kernel.org"); /* Test round-robin rotation */ rspamd_upstream_test_method (ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "kernel.org"); rspamd_upstream_test_method (ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "kernel.org"); rspamd_upstream_test_method (ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "google.com"); rspamd_upstream_test_method (ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "kernel.org"); rspamd_upstream_test_method (ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "google.com"); rspamd_upstream_test_method (ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "microsoft.com"); /* Test stable hashing */ nls = rspamd_upstreams_create (cfg->ups_ctx); g_assert (rspamd_upstreams_parse_line (nls, test_upstream_list, 443, NULL)); g_assert (rspamd_upstreams_parse_line (nls, new_upstream_list, 443, NULL)); for (i = 0; i < assumptions; i ++) { ottery_rand_bytes (test_key, sizeof (test_key)); up = rspamd_upstream_get (ls, RSPAMD_UPSTREAM_HASHED, test_key, sizeof (test_key)); upn = rspamd_upstream_get (nls, RSPAMD_UPSTREAM_HASHED, test_key, sizeof (test_key)); if (strcmp (rspamd_upstream_name (up), rspamd_upstream_name (upn)) == 0) { success ++; } } p = 1.0 - fabs (3.0 / 4.0 - (gdouble)success / (gdouble)assumptions); /* * P value is calculated as following: * when we add/remove M upstreams from the list, the probability of hash * miss should be close to the relation N / (N + M), where N is the size of * the previous upstreams list. */ msg_debug ("p value for hash consistency: %.6f", p); g_assert (p > 0.9); rspamd_upstreams_destroy (nls); /* Upstream fail test */ evtimer_set (&ev, rspamd_upstream_timeout_handler, resolver); event_base_set (ev_base, &ev); up = rspamd_upstream_get (ls, RSPAMD_UPSTREAM_MASTER_SLAVE, NULL, 0); for (i = 0; i < 100; i ++) { rspamd_upstream_fail (up); } g_assert (rspamd_upstreams_alive (ls) == 2); tv.tv_sec = 2; tv.tv_usec = 0; event_add (&ev, &tv); event_base_loop (ev_base, 0); g_assert (rspamd_upstreams_alive (ls) == 3); rspamd_upstreams_destroy (ls); REF_RELEASE (cfg); }