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;
33 typedef enum Support Support;
43 #include "resolved-dns-query.h"
44 #include "resolved-dns-server.h"
45 #include "resolved-dns-scope.h"
46 #include "resolved-dns-stream.h"
47 #include "resolved-link.h"
52 Support llmnr_support;
58 sd_event_source *rtnl_event_source;
60 sd_network_monitor *network_monitor;
61 sd_event_source *network_event_source;
63 /* DNS query management */
64 Hashmap *dns_transactions;
65 LIST_HEAD(DnsQuery, dns_queries);
66 unsigned n_dns_queries;
68 LIST_HEAD(DnsStream, dns_streams);
69 unsigned n_dns_streams;
75 sd_event_source *dns_ipv4_event_source;
76 sd_event_source *dns_ipv6_event_source;
78 LIST_HEAD(DnsServer, dns_servers);
79 LIST_HEAD(DnsServer, fallback_dns_servers);
80 DnsServer *current_dns_server;
82 bool read_resolv_conf;
83 usec_t resolv_conf_mtime;
85 LIST_HEAD(DnsScope, dns_scopes);
86 DnsScope *unicast_scope;
89 int llmnr_ipv4_udp_fd;
90 int llmnr_ipv6_udp_fd;
91 int llmnr_ipv4_tcp_fd;
92 int llmnr_ipv6_tcp_fd;
94 sd_event_source *llmnr_ipv4_udp_event_source;
95 sd_event_source *llmnr_ipv6_udp_event_source;
96 sd_event_source *llmnr_ipv4_tcp_event_source;
97 sd_event_source *llmnr_ipv6_tcp_event_source;
101 sd_event_source *bus_retry_event_source;
103 /* The hostname we publish on LLMNR and mDNS */
105 DnsResourceKey *host_ipv4_key;
106 DnsResourceKey *host_ipv6_key;
108 /* Watch the system hostname */
110 sd_event_source *hostname_event_source;
112 /* Watch for system suspends */
113 sd_bus_slot *prepare_for_sleep_slot;
118 int manager_new(Manager **ret);
119 Manager* manager_free(Manager *m);
121 int manager_start(Manager *m);
122 int manager_read_resolv_conf(Manager *m);
123 int manager_write_resolv_conf(Manager *m);
125 DnsServer *manager_set_dns_server(Manager *m, DnsServer *s);
126 DnsServer *manager_find_dns_server(Manager *m, int family, const union in_addr_union *in_addr);
127 DnsServer *manager_get_dns_server(Manager *m);
128 void manager_next_dns_server(Manager *m);
130 uint32_t manager_find_mtu(Manager *m);
132 int manager_send(Manager *m, int fd, int ifindex, int family, const union in_addr_union *addr, uint16_t port, DnsPacket *p);
133 int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret);
135 int manager_dns_ipv4_fd(Manager *m);
136 int manager_dns_ipv6_fd(Manager *m);
137 int manager_llmnr_ipv4_udp_fd(Manager *m);
138 int manager_llmnr_ipv6_udp_fd(Manager *m);
139 int manager_llmnr_ipv4_tcp_fd(Manager *m);
140 int manager_llmnr_ipv6_tcp_fd(Manager *m);
142 int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr);
143 LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr);
145 void manager_refresh_rrs(Manager *m);
146 int manager_next_hostname(Manager *m);
148 bool manager_our_packet(Manager *m, DnsPacket *p);
149 DnsScope* manager_find_scope(Manager *m, DnsPacket *p);
151 void manager_verify_all(Manager *m);
153 void manager_flush_dns_servers(Manager *m, DnsServerType t);
155 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
157 #define EXTRA_CMSG_SPACE 1024
159 const char* support_to_string(Support p) _const_;
160 int support_from_string(const char *s) _pure_;