src/resolve/resolved-dns-stub.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include "in-addr-util.h"
   5 #include "resolved-forward.h"
   6
   7 typedef enum DnsStubListenerMode {
   8         DNS_STUB_LISTENER_NO,
   9         DNS_STUB_LISTENER_UDP = 1 << 0,
  10         DNS_STUB_LISTENER_TCP = 1 << 1,
  11         DNS_STUB_LISTENER_YES = DNS_STUB_LISTENER_UDP | DNS_STUB_LISTENER_TCP,
  12         _DNS_STUB_LISTENER_MODE_MAX,
  13         _DNS_STUB_LISTENER_MODE_INVALID = -EINVAL,
  14 } DnsStubListenerMode;
  15
  16 typedef struct DnsStubListenerExtra {
  17         Manager *manager;
  18
  19         DnsStubListenerMode mode;
  20
  21         int family;
  22         union in_addr_union address;
  23         uint16_t port;
  24
  25         sd_event_source *udp_event_source;
  26         sd_event_source *tcp_event_source;
  27
  28         Hashmap *queries_by_packet;
  29 } DnsStubListenerExtra;
  30
  31 extern const struct hash_ops dns_stub_listener_extra_hash_ops;
  32
  33 int dns_stub_listener_extra_new(Manager *m, DnsStubListenerExtra **ret);
  34 DnsStubListenerExtra *dns_stub_listener_extra_free(DnsStubListenerExtra *p);
  35 static inline uint16_t dns_stub_listener_extra_port(DnsStubListenerExtra *p) {
  36         assert(p);
  37
  38         return p->port > 0 ? p->port : 53;
  39 }
  40
  41 void manager_dns_stub_stop(Manager *m);
  42 int manager_dns_stub_start(Manager *m);
  43
  44 const char* dns_stub_listener_mode_to_string(DnsStubListenerMode p) _const_;
  45 DnsStubListenerMode dns_stub_listener_mode_from_string(const char *s) _pure_;