]>
Commit | Line | Data |
---|---|---|
1 | #pragma once | |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2014 Tom Gundersen <teg@jklm.no> | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include "sd-event.h" | |
23 | #include "sd-netlink.h" | |
24 | #include "sd-network.h" | |
25 | ||
26 | #include "hashmap.h" | |
27 | #include "list.h" | |
28 | #include "ordered-set.h" | |
29 | #include "resolve-util.h" | |
30 | ||
31 | typedef struct Manager Manager; | |
32 | ||
33 | #include "resolved-conf.h" | |
34 | #include "resolved-dns-query.h" | |
35 | #include "resolved-dns-search-domain.h" | |
36 | #include "resolved-dns-server.h" | |
37 | #include "resolved-dns-stream.h" | |
38 | #include "resolved-dns-trust-anchor.h" | |
39 | #include "resolved-link.h" | |
40 | ||
41 | #define MANAGER_SEARCH_DOMAINS_MAX 32 | |
42 | #define MANAGER_DNS_SERVERS_MAX 32 | |
43 | ||
44 | struct Manager { | |
45 | sd_event *event; | |
46 | ||
47 | ResolveSupport llmnr_support; | |
48 | ResolveSupport mdns_support; | |
49 | DnssecMode dnssec_mode; | |
50 | bool enable_cache; | |
51 | DnsStubListenerMode dns_stub_listener_mode; | |
52 | ||
53 | /* Network */ | |
54 | Hashmap *links; | |
55 | ||
56 | sd_netlink *rtnl; | |
57 | sd_event_source *rtnl_event_source; | |
58 | ||
59 | sd_network_monitor *network_monitor; | |
60 | sd_event_source *network_event_source; | |
61 | ||
62 | /* DNS query management */ | |
63 | Hashmap *dns_transactions; | |
64 | LIST_HEAD(DnsQuery, dns_queries); | |
65 | unsigned n_dns_queries; | |
66 | ||
67 | LIST_HEAD(DnsStream, dns_streams); | |
68 | unsigned n_dns_streams; | |
69 | ||
70 | /* Unicast dns */ | |
71 | LIST_HEAD(DnsServer, dns_servers); | |
72 | LIST_HEAD(DnsServer, fallback_dns_servers); | |
73 | unsigned n_dns_servers; /* counts both main and fallback */ | |
74 | DnsServer *current_dns_server; | |
75 | ||
76 | LIST_HEAD(DnsSearchDomain, search_domains); | |
77 | unsigned n_search_domains; | |
78 | ||
79 | bool need_builtin_fallbacks:1; | |
80 | ||
81 | bool read_resolv_conf:1; | |
82 | usec_t resolv_conf_mtime; | |
83 | ||
84 | DnsTrustAnchor trust_anchor; | |
85 | ||
86 | LIST_HEAD(DnsScope, dns_scopes); | |
87 | DnsScope *unicast_scope; | |
88 | ||
89 | /* LLMNR */ | |
90 | int llmnr_ipv4_udp_fd; | |
91 | int llmnr_ipv6_udp_fd; | |
92 | int llmnr_ipv4_tcp_fd; | |
93 | int llmnr_ipv6_tcp_fd; | |
94 | ||
95 | sd_event_source *llmnr_ipv4_udp_event_source; | |
96 | sd_event_source *llmnr_ipv6_udp_event_source; | |
97 | sd_event_source *llmnr_ipv4_tcp_event_source; | |
98 | sd_event_source *llmnr_ipv6_tcp_event_source; | |
99 | ||
100 | /* mDNS */ | |
101 | int mdns_ipv4_fd; | |
102 | int mdns_ipv6_fd; | |
103 | ||
104 | sd_event_source *mdns_ipv4_event_source; | |
105 | sd_event_source *mdns_ipv6_event_source; | |
106 | ||
107 | /* dbus */ | |
108 | sd_bus *bus; | |
109 | sd_event_source *bus_retry_event_source; | |
110 | ||
111 | /* The hostname we publish on LLMNR and mDNS */ | |
112 | char *full_hostname; | |
113 | char *llmnr_hostname; | |
114 | char *mdns_hostname; | |
115 | DnsResourceKey *llmnr_host_ipv4_key; | |
116 | DnsResourceKey *llmnr_host_ipv6_key; | |
117 | DnsResourceKey *mdns_host_ipv4_key; | |
118 | DnsResourceKey *mdns_host_ipv6_key; | |
119 | ||
120 | /* Watch the system hostname */ | |
121 | int hostname_fd; | |
122 | sd_event_source *hostname_event_source; | |
123 | ||
124 | /* Watch for system suspends */ | |
125 | sd_bus_slot *prepare_for_sleep_slot; | |
126 | ||
127 | sd_event_source *sigusr1_event_source; | |
128 | sd_event_source *sigusr2_event_source; | |
129 | ||
130 | unsigned n_transactions_total; | |
131 | unsigned n_dnssec_verdict[_DNSSEC_VERDICT_MAX]; | |
132 | ||
133 | /* Data from /etc/hosts */ | |
134 | Set* etc_hosts_by_address; | |
135 | Hashmap* etc_hosts_by_name; | |
136 | usec_t etc_hosts_last, etc_hosts_mtime; | |
137 | ||
138 | /* Local DNS stub on 127.0.0.53:53 */ | |
139 | int dns_stub_udp_fd; | |
140 | int dns_stub_tcp_fd; | |
141 | ||
142 | sd_event_source *dns_stub_udp_event_source; | |
143 | sd_event_source *dns_stub_tcp_event_source; | |
144 | }; | |
145 | ||
146 | /* Manager */ | |
147 | ||
148 | int manager_new(Manager **ret); | |
149 | Manager* manager_free(Manager *m); | |
150 | ||
151 | int manager_start(Manager *m); | |
152 | ||
153 | uint32_t manager_find_mtu(Manager *m); | |
154 | ||
155 | int manager_write(Manager *m, int fd, DnsPacket *p); | |
156 | int manager_send(Manager *m, int fd, int ifindex, int family, const union in_addr_union *destination, uint16_t port, const union in_addr_union *source, DnsPacket *p); | |
157 | int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret); | |
158 | ||
159 | int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr); | |
160 | LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr); | |
161 | ||
162 | void manager_refresh_rrs(Manager *m); | |
163 | int manager_next_hostname(Manager *m); | |
164 | ||
165 | bool manager_our_packet(Manager *m, DnsPacket *p); | |
166 | DnsScope* manager_find_scope(Manager *m, DnsPacket *p); | |
167 | ||
168 | void manager_verify_all(Manager *m); | |
169 | ||
170 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); | |
171 | ||
172 | #define EXTRA_CMSG_SPACE 1024 | |
173 | ||
174 | int manager_is_own_hostname(Manager *m, const char *name); | |
175 | ||
176 | int manager_compile_dns_servers(Manager *m, OrderedSet **servers); | |
177 | int manager_compile_search_domains(Manager *m, OrderedSet **domains, int filter_route); | |
178 | ||
179 | DnssecMode manager_get_dnssec_mode(Manager *m); | |
180 | bool manager_dnssec_supported(Manager *m); | |
181 | ||
182 | void manager_dnssec_verdict(Manager *m, DnssecVerdict verdict, const DnsResourceKey *key); | |
183 | ||
184 | bool manager_routable(Manager *m, int family); | |
185 | ||
186 | void manager_flush_caches(Manager *m); | |
187 | void manager_reset_server_features(Manager *m); | |
188 | ||
189 | void manager_cleanup_saved_user(Manager *m); |