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- /*
- * Copyright 2023 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.
- */
-
- #ifndef RSPAMD_DNS_H
- #define RSPAMD_DNS_H
-
- #include "config.h"
- #include "mem_pool.h"
- #include "async_session.h"
- #include "logger.h"
- #include "rdns.h"
- #include "upstream.h"
- #include "libutil/hash.h"
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- struct rspamd_config;
- struct rspamd_task;
- struct event_loop;
-
- struct rspamd_dns_resolver {
- struct rdns_resolver *r;
- struct ev_loop *event_loop;
- rspamd_lru_hash_t *fails_cache;
- void *uidna;
- double fails_cache_time;
- struct upstream_list *ups;
- struct rspamd_config *cfg;
- double request_timeout;
- unsigned int max_retransmits;
- };
-
- /* Rspamd DNS API */
-
- /**
- * Init DNS resolver, params are obtained from a config file or system file /etc/resolv.conf
- */
- struct rspamd_dns_resolver *rspamd_dns_resolver_init(rspamd_logger_t *logger,
- struct ev_loop *ev_base,
- struct rspamd_config *cfg);
-
- void rspamd_dns_resolver_deinit(struct rspamd_dns_resolver *resolver);
-
- struct rspamd_dns_request_ud;
-
- /**
- * Make a DNS request
- * @param resolver resolver object
- * @param session async session to register event
- * @param pool memory pool for storage
- * @param cb callback to call on resolve completing
- * @param ud user data for callback
- * @param type request type
- * @param ... string or ip address based on a request type
- * @return TRUE if request was sent.
- */
- struct rspamd_dns_request_ud *rspamd_dns_resolver_request(struct rspamd_dns_resolver *resolver,
- struct rspamd_async_session *session,
- rspamd_mempool_t *pool,
- dns_callback_type cb,
- gpointer ud,
- enum rdns_request_type type,
- const char *name);
-
- gboolean rspamd_dns_resolver_request_task(struct rspamd_task *task,
- dns_callback_type cb,
- gpointer ud,
- enum rdns_request_type type,
- const char *name);
-
- gboolean rspamd_dns_resolver_request_task_forced(struct rspamd_task *task,
- dns_callback_type cb,
- gpointer ud,
- enum rdns_request_type type,
- const char *name);
-
- /**
- * Converts a name into idna from UTF8
- * @param resolver resolver (must be initialised)
- * @param pool optional memory pool (can be NULL, then you need to g_free) the result
- * @param name input name
- * @param namelen length of input (-1 for zero terminated)
- * @return encoded string
- */
- char *rspamd_dns_resolver_idna_convert_utf8(struct rspamd_dns_resolver *resolver,
- rspamd_mempool_t *pool,
- const char *name,
- int namelen,
- unsigned int *outlen);
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif
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