src/or/dns.h

   1 /* Copyright (c) 2001 Matej Pfajfar.
   2  * Copyright (c) 2001-2004, Roger Dingledine.
   3  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
   4  * Copyright (c) 2007-2016, The Tor Project, Inc. */
   5 /* See LICENSE for licensing information */
   6
   7 /**
   8  * \file dns.h
   9  * \brief Header file for dns.c.
  10  **/
  11
  12 #ifndef TOR_DNS_H
  13 #define TOR_DNS_H
  14
  15 int dns_init(void);
  16 int has_dns_init_failed(void);
  17 void dns_free_all(void);
  18 uint32_t dns_clip_ttl(uint32_t ttl);
  19 int dns_reset(void);
  20 void connection_dns_remove(edge_connection_t *conn);
  21 void assert_connection_edge_not_dns_pending(edge_connection_t *conn);
  22 void assert_all_pending_dns_resolves_ok(void);
  23 MOCK_DECL(void,dns_cancel_pending_resolve,(const char *question));
  24 int dns_resolve(edge_connection_t *exitconn);
  25 void dns_launch_correctness_checks(void);
  26 int dns_seems_to_be_broken(void);
  27 int dns_seems_to_be_broken_for_ipv6(void);
  28 void dns_reset_correctness_checks(void);
  29 void dump_dns_mem_usage(int severity);
  30
  31 #ifdef DNS_PRIVATE
  32 #include "dns_structs.h"
  33
  34 STATIC uint32_t dns_get_expiry_ttl(uint32_t ttl);
  35
  36 MOCK_DECL(STATIC int,dns_resolve_impl,(edge_connection_t *exitconn,
  37 int is_resolve,or_circuit_t *oncirc, char **hostname_out,
  38 int *made_connection_pending_out, cached_resolve_t **resolve_out));
  39
  40 MOCK_DECL(STATIC void,send_resolved_cell,(edge_connection_t *conn,
  41 uint8_t answer_type,const cached_resolve_t *resolved));
  42
  43 MOCK_DECL(STATIC void,send_resolved_hostname_cell,(edge_connection_t *conn,
  44 const char *hostname));
  45
  46 cached_resolve_t *dns_get_cache_entry(cached_resolve_t *query);
  47 void dns_insert_cache_entry(cached_resolve_t *new_entry);
  48
  49 MOCK_DECL(STATIC int,
  50 set_exitconn_info_from_resolve,(edge_connection_t *exitconn,
  51                                 const cached_resolve_t *resolve,
  52                                 char **hostname_out));
  53
  54 MOCK_DECL(STATIC int,
  55 launch_resolve,(cached_resolve_t *resolve));
  56
  57 #endif
  58
  59 #endif
  60