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 LIST_HEAD(DnsScope, dns_scopes);
82 DnsScope *unicast_scope;
85 int llmnr_ipv4_udp_fd;
86 int llmnr_ipv6_udp_fd;
87 int llmnr_ipv4_tcp_fd;
88 int llmnr_ipv6_tcp_fd;
90 sd_event_source *llmnr_ipv4_udp_event_source;
91 sd_event_source *llmnr_ipv6_udp_event_source;
92 sd_event_source *llmnr_ipv4_tcp_event_source;
93 sd_event_source *llmnr_ipv6_tcp_event_source;
97 sd_event_source *bus_retry_event_source;
99 /* The hostname we publish on LLMNR and mDNS */
101 DnsResourceKey *host_ipv4_key;
102 DnsResourceKey *host_ipv6_key;
104 /* Watch the system hostname */
106 sd_event_source *hostname_event_source;
111 int manager_new(Manager **ret);
112 Manager* manager_free(Manager *m);
114 int manager_write_resolv_conf(Manager *m);
116 bool manager_known_dns_server(Manager *m, int family, const union in_addr_union *in_addr);
117 DnsServer *manager_get_dns_server(Manager *m);
118 void manager_next_dns_server(Manager *m);
120 uint32_t manager_find_mtu(Manager *m);
122 int manager_send(Manager *m, int fd, int ifindex, int family, const union in_addr_union *addr, uint16_t port, DnsPacket *p);
123 int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret);
125 int manager_dns_ipv4_fd(Manager *m);
126 int manager_dns_ipv6_fd(Manager *m);
127 int manager_llmnr_ipv4_udp_fd(Manager *m);
128 int manager_llmnr_ipv6_udp_fd(Manager *m);
129 int manager_llmnr_ipv4_tcp_fd(Manager *m);
130 int manager_llmnr_ipv6_tcp_fd(Manager *m);
132 int manager_ifindex_is_loopback(Manager *m, int ifindex);
133 int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr);
134 LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr);
136 void manager_refresh_rrs(Manager *m);
137 int manager_next_hostname(Manager *m);
139 int manager_our_packet(Manager *m, DnsPacket *p);
141 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
143 #define EXTRA_CMSG_SPACE 1024
145 const char* support_to_string(Support p) _const_;
146 int support_from_string(const char *s) _pure_;