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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
74b2466e LP |
2 | #pragma once |
3 | ||
091a364c TG |
4 | /*** |
5 | This file is part of systemd. | |
6 | ||
4e945a6f | 7 | Copyright 2014 Tom Gundersen <teg@jklm.no> |
091a364c TG |
8 | |
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
091a364c | 23 | #include "sd-event.h" |
1c4baffc | 24 | #include "sd-netlink.h" |
71d35b6b TA |
25 | #include "sd-network.h" |
26 | ||
74b2466e | 27 | #include "hashmap.h" |
71d35b6b | 28 | #include "list.h" |
9176a57c | 29 | #include "ordered-set.h" |
af49ca27 | 30 | #include "resolve-util.h" |
091a364c | 31 | |
091a364c | 32 | typedef struct Manager Manager; |
19b50b5b | 33 | |
1ae43295 | 34 | #include "resolved-conf.h" |
19b50b5b | 35 | #include "resolved-dns-query.h" |
a51c1048 LP |
36 | #include "resolved-dns-search-domain.h" |
37 | #include "resolved-dns-server.h" | |
19b50b5b | 38 | #include "resolved-dns-stream.h" |
0d2cd476 | 39 | #include "resolved-dns-trust-anchor.h" |
19b50b5b | 40 | #include "resolved-link.h" |
4e945a6f | 41 | |
eed857b7 LP |
42 | #define MANAGER_SEARCH_DOMAINS_MAX 32 |
43 | #define MANAGER_DNS_SERVERS_MAX 32 | |
44 | ||
091a364c TG |
45 | struct Manager { |
46 | sd_event *event; | |
47 | ||
af49ca27 LP |
48 | ResolveSupport llmnr_support; |
49 | ResolveSupport mdns_support; | |
ad6c0475 | 50 | DnssecMode dnssec_mode; |
ceeddf79 | 51 | bool enable_cache; |
1ae43295 | 52 | DnsStubListenerMode dns_stub_listener_mode; |
1716f6dc LP |
53 | |
54 | /* Network */ | |
74b2466e LP |
55 | Hashmap *links; |
56 | ||
1c4baffc | 57 | sd_netlink *rtnl; |
74b2466e LP |
58 | sd_event_source *rtnl_event_source; |
59 | ||
091a364c | 60 | sd_network_monitor *network_monitor; |
74b2466e LP |
61 | sd_event_source *network_event_source; |
62 | ||
1716f6dc | 63 | /* DNS query management */ |
ec2c5e43 | 64 | Hashmap *dns_transactions; |
1716f6dc LP |
65 | LIST_HEAD(DnsQuery, dns_queries); |
66 | unsigned n_dns_queries; | |
67 | ||
623a4c97 LP |
68 | LIST_HEAD(DnsStream, dns_streams); |
69 | unsigned n_dns_streams; | |
70 | ||
1716f6dc | 71 | /* Unicast dns */ |
74b2466e | 72 | LIST_HEAD(DnsServer, dns_servers); |
4e945a6f | 73 | LIST_HEAD(DnsServer, fallback_dns_servers); |
eed857b7 | 74 | unsigned n_dns_servers; /* counts both main and fallback */ |
74b2466e LP |
75 | DnsServer *current_dns_server; |
76 | ||
a51c1048 | 77 | LIST_HEAD(DnsSearchDomain, search_domains); |
eed857b7 | 78 | unsigned n_search_domains; |
a51c1048 | 79 | |
00fa60ae | 80 | bool need_builtin_fallbacks:1; |
a51c1048 | 81 | |
00fa60ae | 82 | bool read_resolv_conf:1; |
5cb36f41 LP |
83 | usec_t resolv_conf_mtime; |
84 | ||
0d2cd476 LP |
85 | DnsTrustAnchor trust_anchor; |
86 | ||
74b2466e LP |
87 | LIST_HEAD(DnsScope, dns_scopes); |
88 | DnsScope *unicast_scope; | |
89 | ||
1716f6dc LP |
90 | /* LLMNR */ |
91 | int llmnr_ipv4_udp_fd; | |
92 | int llmnr_ipv6_udp_fd; | |
623a4c97 LP |
93 | int llmnr_ipv4_tcp_fd; |
94 | int llmnr_ipv6_tcp_fd; | |
1716f6dc LP |
95 | |
96 | sd_event_source *llmnr_ipv4_udp_event_source; | |
97 | sd_event_source *llmnr_ipv6_udp_event_source; | |
623a4c97 LP |
98 | sd_event_source *llmnr_ipv4_tcp_event_source; |
99 | sd_event_source *llmnr_ipv6_tcp_event_source; | |
1716f6dc | 100 | |
bc7702b0 DM |
101 | /* mDNS */ |
102 | int mdns_ipv4_fd; | |
103 | int mdns_ipv6_fd; | |
104 | ||
105 | sd_event_source *mdns_ipv4_event_source; | |
106 | sd_event_source *mdns_ipv6_event_source; | |
107 | ||
74b2466e LP |
108 | /* dbus */ |
109 | sd_bus *bus; | |
110 | sd_event_source *bus_retry_event_source; | |
623a4c97 LP |
111 | |
112 | /* The hostname we publish on LLMNR and mDNS */ | |
e96de0ce | 113 | char *full_hostname; |
78c6a153 LP |
114 | char *llmnr_hostname; |
115 | char *mdns_hostname; | |
116 | DnsResourceKey *llmnr_host_ipv4_key; | |
117 | DnsResourceKey *llmnr_host_ipv6_key; | |
400cb36e DR |
118 | DnsResourceKey *mdns_host_ipv4_key; |
119 | DnsResourceKey *mdns_host_ipv6_key; | |
eb60f9cd LP |
120 | |
121 | /* Watch the system hostname */ | |
122 | int hostname_fd; | |
123 | sd_event_source *hostname_event_source; | |
902bb5d8 LP |
124 | |
125 | /* Watch for system suspends */ | |
126 | sd_bus_slot *prepare_for_sleep_slot; | |
4d506d6b LP |
127 | |
128 | sd_event_source *sigusr1_event_source; | |
bc81447e | 129 | sd_event_source *sigusr2_event_source; |
d55b0463 | 130 | sd_event_source *sigrtmin1_event_source; |
a150ff5e LP |
131 | |
132 | unsigned n_transactions_total; | |
59c5b597 | 133 | unsigned n_dnssec_verdict[_DNSSEC_VERDICT_MAX]; |
dd0bc0f1 LP |
134 | |
135 | /* Data from /etc/hosts */ | |
136 | Set* etc_hosts_by_address; | |
137 | Hashmap* etc_hosts_by_name; | |
138 | usec_t etc_hosts_last, etc_hosts_mtime; | |
b30bf55d LP |
139 | |
140 | /* Local DNS stub on 127.0.0.53:53 */ | |
141 | int dns_stub_udp_fd; | |
142 | int dns_stub_tcp_fd; | |
143 | ||
144 | sd_event_source *dns_stub_udp_event_source; | |
145 | sd_event_source *dns_stub_tcp_event_source; | |
091a364c TG |
146 | }; |
147 | ||
148 | /* Manager */ | |
149 | ||
150 | int manager_new(Manager **ret); | |
74b2466e LP |
151 | Manager* manager_free(Manager *m); |
152 | ||
edc501d4 | 153 | int manager_start(Manager *m); |
74b2466e | 154 | |
e1c95994 | 155 | uint32_t manager_find_mtu(Manager *m); |
091a364c | 156 | |
72290734 | 157 | int manager_write(Manager *m, int fd, DnsPacket *p); |
b30bf55d | 158 | 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); |
1716f6dc | 159 | int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret); |
74b2466e | 160 | |
623a4c97 | 161 | int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr); |
4e945a6f | 162 | LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr); |
ec2c5e43 | 163 | |
eb60f9cd | 164 | void manager_refresh_rrs(Manager *m); |
ec2c5e43 | 165 | int manager_next_hostname(Manager *m); |
74b2466e | 166 | |
a4076574 LP |
167 | bool manager_our_packet(Manager *m, DnsPacket *p); |
168 | DnsScope* manager_find_scope(Manager *m, DnsPacket *p); | |
091a364c | 169 | |
902bb5d8 LP |
170 | void manager_verify_all(Manager *m); |
171 | ||
091a364c | 172 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); |
091a364c | 173 | |
623a4c97 | 174 | #define EXTRA_CMSG_SPACE 1024 |
4e945a6f | 175 | |
78c6a153 LP |
176 | int manager_is_own_hostname(Manager *m, const char *name); |
177 | ||
9176a57c | 178 | int manager_compile_dns_servers(Manager *m, OrderedSet **servers); |
6f7da49d | 179 | int manager_compile_search_domains(Manager *m, OrderedSet **domains, int filter_route); |
c69fa7e3 LP |
180 | |
181 | DnssecMode manager_get_dnssec_mode(Manager *m); | |
182 | bool manager_dnssec_supported(Manager *m); | |
59c5b597 LP |
183 | |
184 | void manager_dnssec_verdict(Manager *m, DnssecVerdict verdict, const DnsResourceKey *key); | |
011696f7 LP |
185 | |
186 | bool manager_routable(Manager *m, int family); | |
ba35662f LP |
187 | |
188 | void manager_flush_caches(Manager *m); | |
59c0fd0e | 189 | void manager_reset_server_features(Manager *m); |
943ef07c LP |
190 | |
191 | void manager_cleanup_saved_user(Manager *m); |