1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2014 Tom Gundersen <teg@jklm.no>
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 #include "sd-network.h"
29 #include "in-addr-util.h"
32 typedef struct Manager Manager;
34 #include "resolved-dns-query.h"
35 #include "resolved-dns-server.h"
36 #include "resolved-dns-scope.h"
37 #include "resolved-dns-stream.h"
38 #include "resolved-link.h"
40 typedef enum Support {
51 Support llmnr_support;
57 sd_event_source *rtnl_event_source;
59 sd_network_monitor *network_monitor;
60 sd_event_source *network_event_source;
62 /* DNS query management */
63 Hashmap *dns_transactions;
64 LIST_HEAD(DnsQuery, dns_queries);
65 unsigned n_dns_queries;
67 LIST_HEAD(DnsStream, dns_streams);
68 unsigned n_dns_streams;
74 sd_event_source *dns_ipv4_event_source;
75 sd_event_source *dns_ipv6_event_source;
77 LIST_HEAD(DnsServer, dns_servers);
78 LIST_HEAD(DnsServer, fallback_dns_servers);
79 DnsServer *current_dns_server;
81 bool read_resolv_conf;
82 usec_t resolv_conf_mtime;
84 LIST_HEAD(DnsScope, dns_scopes);
85 DnsScope *unicast_scope;
88 int llmnr_ipv4_udp_fd;
89 int llmnr_ipv6_udp_fd;
90 int llmnr_ipv4_tcp_fd;
91 int llmnr_ipv6_tcp_fd;
93 sd_event_source *llmnr_ipv4_udp_event_source;
94 sd_event_source *llmnr_ipv6_udp_event_source;
95 sd_event_source *llmnr_ipv4_tcp_event_source;
96 sd_event_source *llmnr_ipv6_tcp_event_source;
100 sd_event_source *bus_retry_event_source;
102 /* The hostname we publish on LLMNR and mDNS */
104 DnsResourceKey *host_ipv4_key;
105 DnsResourceKey *host_ipv6_key;
107 /* Watch the system hostname */
109 sd_event_source *hostname_event_source;
114 int manager_new(Manager **ret);
115 Manager* manager_free(Manager *m);
117 int manager_read_resolv_conf(Manager *m);
118 int manager_write_resolv_conf(Manager *m);
120 bool manager_known_dns_server(Manager *m, int family, const union in_addr_union *in_addr);
121 DnsServer *manager_get_dns_server(Manager *m);
122 void manager_next_dns_server(Manager *m);
124 uint32_t manager_find_mtu(Manager *m);
126 int manager_send(Manager *m, int fd, int ifindex, int family, const union in_addr_union *addr, uint16_t port, DnsPacket *p);
127 int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret);
129 int manager_dns_ipv4_fd(Manager *m);
130 int manager_dns_ipv6_fd(Manager *m);
131 int manager_llmnr_ipv4_udp_fd(Manager *m);
132 int manager_llmnr_ipv6_udp_fd(Manager *m);
133 int manager_llmnr_ipv4_tcp_fd(Manager *m);
134 int manager_llmnr_ipv6_tcp_fd(Manager *m);
136 int manager_ifindex_is_loopback(Manager *m, int ifindex);
137 int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr);
138 LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr);
140 void manager_refresh_rrs(Manager *m);
141 int manager_next_hostname(Manager *m);
143 int manager_our_packet(Manager *m, DnsPacket *p);
145 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
147 #define EXTRA_CMSG_SPACE 1024
149 const char* support_to_string(Support p) _const_;
150 int support_from_string(const char *s) _pure_;