src/resolve/resolved-link.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include "sd-netlink.h"
   5
   6 #include "in-addr-util.h"
   7 #include "ratelimit.h"
   8 #include "resolve-util.h"
   9
  10 typedef struct Link Link;
  11 typedef struct LinkAddress LinkAddress;
  12
  13 #include "resolved-dns-rr.h"
  14 #include "resolved-dns-scope.h"
  15 #include "resolved-dns-search-domain.h"
  16 #include "resolved-dns-server.h"
  17
  18 #define LINK_SEARCH_DOMAINS_MAX 256
  19 #define LINK_DNS_SERVERS_MAX 256
  20
  21 struct LinkAddress {
  22         Link *link;
  23
  24         int family;
  25         union in_addr_union in_addr;
  26
  27         unsigned char flags, scope;
  28
  29         DnsResourceRecord *llmnr_address_rr;
  30         DnsResourceRecord *llmnr_ptr_rr;
  31         DnsResourceRecord *mdns_address_rr;
  32         DnsResourceRecord *mdns_ptr_rr;
  33
  34         LIST_FIELDS(LinkAddress, addresses);
  35 };
  36
  37 struct Link {
  38         Manager *manager;
  39
  40         int ifindex;
  41         unsigned flags;
  42
  43         LIST_HEAD(LinkAddress, addresses);
  44         unsigned n_addresses;
  45
  46         LIST_HEAD(DnsServer, dns_servers);
  47         DnsServer *current_dns_server;
  48         unsigned n_dns_servers;
  49
  50         LIST_HEAD(DnsSearchDomain, search_domains);
  51         unsigned n_search_domains;
  52
  53         int default_route;
  54
  55         ResolveSupport llmnr_support;
  56         ResolveSupport mdns_support;
  57         DnsOverTlsMode dns_over_tls_mode;
  58         DnssecMode dnssec_mode;
  59         Set *dnssec_negative_trust_anchors;
  60
  61         DnsScope *unicast_scope;
  62         DnsScope *llmnr_ipv4_scope;
  63         DnsScope *llmnr_ipv6_scope;
  64         DnsScope *mdns_ipv4_scope;
  65         DnsScope *mdns_ipv6_scope;
  66
  67         bool is_managed;
  68
  69         char *ifname;
  70         uint32_t mtu;
  71         uint8_t operstate;
  72
  73         bool loaded;
  74         char *state_file;
  75
  76         bool unicast_relevant;
  77 };
  78
  79 int link_new(Manager *m, Link **ret, int ifindex);
  80 Link *link_free(Link *l);
  81 int link_process_rtnl(Link *l, sd_netlink_message *m);
  82 int link_update(Link *l);
  83 bool link_relevant(Link *l, int family, bool local_multicast);
  84 LinkAddress* link_find_address(Link *l, int family, const union in_addr_union *in_addr);
  85 void link_add_rrs(Link *l, bool force_remove);
  86
  87 void link_flush_settings(Link *l);
  88 void link_set_dnssec_mode(Link *l, DnssecMode mode);
  89 void link_set_dns_over_tls_mode(Link *l, DnsOverTlsMode mode);
  90 void link_allocate_scopes(Link *l);
  91
  92 DnsServer* link_set_dns_server(Link *l, DnsServer *s);
  93 DnsServer* link_get_dns_server(Link *l);
  94 void link_next_dns_server(Link *l);
  95
  96 DnssecMode link_get_dnssec_mode(Link *l);
  97 bool link_dnssec_supported(Link *l);
  98
  99 DnsOverTlsMode link_get_dns_over_tls_mode(Link *l);
 100
 101 int link_save_user(Link *l);
 102 int link_load_user(Link *l);
 103 void link_remove_user(Link *l);
 104
 105 int link_address_new(Link *l, LinkAddress **ret, int family, const union in_addr_union *in_addr);
 106 LinkAddress *link_address_free(LinkAddress *a);
 107 int link_address_update_rtnl(LinkAddress *a, sd_netlink_message *m);
 108 bool link_address_relevant(LinkAddress *l, bool local_multicast);
 109 void link_address_add_rrs(LinkAddress *a, bool force_remove);
 110
 111 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);