src/resolve/resolved-dns-cache.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include "hashmap.h"
   5 #include "list.h"
   6 #include "prioq.h"
   7 #include "resolve-util.h"
   8 #include "resolved-dns-dnssec.h"
   9 #include "time-util.h"
  10
  11 typedef struct DnsCache {
  12         Hashmap *by_key;
  13         Prioq *by_expiry;
  14         unsigned n_hit;
  15         unsigned n_miss;
  16 } DnsCache;
  17
  18 #include "resolved-dns-answer.h"
  19 #include "resolved-dns-packet.h"
  20 #include "resolved-dns-question.h"
  21 #include "resolved-dns-rr.h"
  22
  23 void dns_cache_flush(DnsCache *c);
  24 void dns_cache_prune(DnsCache *c);
  25
  26 int dns_cache_put(
  27                 DnsCache *c,
  28                 DnsCacheMode cache_mode,
  29                 DnsResourceKey *key,
  30                 int rcode,
  31                 DnsAnswer *answer,
  32                 DnsPacket *full_packet,
  33                 bool authenticated,
  34                 DnssecResult dnssec_result,
  35                 uint32_t nsec_ttl,
  36                 int owner_family,
  37                 const union in_addr_union *owner_address);
  38
  39 int dns_cache_lookup(
  40                 DnsCache *c,
  41                 DnsResourceKey *key,
  42                 uint64_t query_flags,
  43                 int *ret_rcode,
  44                 DnsAnswer **ret_answer,
  45                 DnsPacket **ret_full_packet,
  46                 bool *ret_authenticated,
  47                 DnssecResult *ret_dnssec_result);
  48
  49 int dns_cache_check_conflicts(DnsCache *cache, DnsResourceRecord *rr, int owner_family, const union in_addr_union *owner_address);
  50
  51 void dns_cache_dump(DnsCache *cache, FILE *f);
  52 bool dns_cache_is_empty(DnsCache *cache);
  53
  54 unsigned dns_cache_size(DnsCache *cache);
  55
  56 int dns_cache_export_shared_to_packet(DnsCache *cache, DnsPacket *p);