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5eef597e MP |
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" | |
86f210e9 | 23 | #include "sd-netlink.h" |
4c89c718 MP |
24 | #include "sd-network.h" |
25 | ||
5eef597e | 26 | #include "hashmap.h" |
4c89c718 MP |
27 | #include "list.h" |
28 | #include "ordered-set.h" | |
29 | #include "resolve-util.h" | |
5eef597e MP |
30 | |
31 | typedef struct Manager Manager; | |
5eef597e MP |
32 | |
33 | #include "resolved-dns-query.h" | |
4c89c718 MP |
34 | #include "resolved-dns-search-domain.h" |
35 | #include "resolved-dns-server.h" | |
5eef597e | 36 | #include "resolved-dns-stream.h" |
4c89c718 | 37 | #include "resolved-dns-trust-anchor.h" |
5eef597e MP |
38 | #include "resolved-link.h" |
39 | ||
4c89c718 MP |
40 | #define MANAGER_SEARCH_DOMAINS_MAX 32 |
41 | #define MANAGER_DNS_SERVERS_MAX 32 | |
42 | ||
5eef597e MP |
43 | struct Manager { |
44 | sd_event *event; | |
45 | ||
4c89c718 MP |
46 | ResolveSupport llmnr_support; |
47 | ResolveSupport mdns_support; | |
48 | DnssecMode dnssec_mode; | |
5eef597e MP |
49 | |
50 | /* Network */ | |
51 | Hashmap *links; | |
52 | ||
86f210e9 | 53 | sd_netlink *rtnl; |
5eef597e MP |
54 | sd_event_source *rtnl_event_source; |
55 | ||
56 | sd_network_monitor *network_monitor; | |
57 | sd_event_source *network_event_source; | |
58 | ||
59 | /* DNS query management */ | |
60 | Hashmap *dns_transactions; | |
61 | LIST_HEAD(DnsQuery, dns_queries); | |
62 | unsigned n_dns_queries; | |
63 | ||
64 | LIST_HEAD(DnsStream, dns_streams); | |
65 | unsigned n_dns_streams; | |
66 | ||
67 | /* Unicast dns */ | |
5eef597e MP |
68 | LIST_HEAD(DnsServer, dns_servers); |
69 | LIST_HEAD(DnsServer, fallback_dns_servers); | |
4c89c718 | 70 | unsigned n_dns_servers; /* counts both main and fallback */ |
5eef597e MP |
71 | DnsServer *current_dns_server; |
72 | ||
4c89c718 MP |
73 | LIST_HEAD(DnsSearchDomain, search_domains); |
74 | unsigned n_search_domains; | |
75 | bool permit_domain_search; | |
76 | ||
77 | bool need_builtin_fallbacks:1; | |
78 | ||
79 | bool read_resolv_conf:1; | |
5eef597e MP |
80 | usec_t resolv_conf_mtime; |
81 | ||
4c89c718 MP |
82 | DnsTrustAnchor trust_anchor; |
83 | ||
5eef597e MP |
84 | LIST_HEAD(DnsScope, dns_scopes); |
85 | DnsScope *unicast_scope; | |
86 | ||
87 | /* LLMNR */ | |
88 | int llmnr_ipv4_udp_fd; | |
89 | int llmnr_ipv6_udp_fd; | |
90 | int llmnr_ipv4_tcp_fd; | |
91 | int llmnr_ipv6_tcp_fd; | |
92 | ||
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; | |
97 | ||
4c89c718 MP |
98 | /* mDNS */ |
99 | int mdns_ipv4_fd; | |
100 | int mdns_ipv6_fd; | |
101 | ||
102 | sd_event_source *mdns_ipv4_event_source; | |
103 | sd_event_source *mdns_ipv6_event_source; | |
104 | ||
5eef597e MP |
105 | /* dbus */ |
106 | sd_bus *bus; | |
107 | sd_event_source *bus_retry_event_source; | |
108 | ||
109 | /* The hostname we publish on LLMNR and mDNS */ | |
13d276d0 MP |
110 | char *llmnr_hostname; |
111 | char *mdns_hostname; | |
112 | DnsResourceKey *llmnr_host_ipv4_key; | |
113 | DnsResourceKey *llmnr_host_ipv6_key; | |
5eef597e MP |
114 | |
115 | /* Watch the system hostname */ | |
116 | int hostname_fd; | |
117 | sd_event_source *hostname_event_source; | |
118 | ||
119 | /* Watch for system suspends */ | |
120 | sd_bus_slot *prepare_for_sleep_slot; | |
13d276d0 MP |
121 | |
122 | sd_event_source *sigusr1_event_source; | |
4c89c718 MP |
123 | |
124 | unsigned n_transactions_total; | |
125 | unsigned n_dnssec_verdict[_DNSSEC_VERDICT_MAX]; | |
126 | ||
127 | /* Data from /etc/hosts */ | |
128 | Set* etc_hosts_by_address; | |
129 | Hashmap* etc_hosts_by_name; | |
130 | usec_t etc_hosts_last, etc_hosts_mtime; | |
5eef597e MP |
131 | }; |
132 | ||
133 | /* Manager */ | |
134 | ||
135 | int manager_new(Manager **ret); | |
136 | Manager* manager_free(Manager *m); | |
137 | ||
138 | int manager_start(Manager *m); | |
5eef597e MP |
139 | |
140 | uint32_t manager_find_mtu(Manager *m); | |
141 | ||
7035cd9e | 142 | int manager_write(Manager *m, int fd, DnsPacket *p); |
5eef597e MP |
143 | int manager_send(Manager *m, int fd, int ifindex, int family, const union in_addr_union *addr, uint16_t port, DnsPacket *p); |
144 | int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret); | |
145 | ||
5eef597e MP |
146 | int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr); |
147 | LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr); | |
148 | ||
149 | void manager_refresh_rrs(Manager *m); | |
150 | int manager_next_hostname(Manager *m); | |
151 | ||
152 | bool manager_our_packet(Manager *m, DnsPacket *p); | |
153 | DnsScope* manager_find_scope(Manager *m, DnsPacket *p); | |
154 | ||
155 | void manager_verify_all(Manager *m); | |
156 | ||
5eef597e MP |
157 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); |
158 | ||
159 | #define EXTRA_CMSG_SPACE 1024 | |
160 | ||
13d276d0 MP |
161 | int manager_is_own_hostname(Manager *m, const char *name); |
162 | ||
4c89c718 MP |
163 | int manager_compile_dns_servers(Manager *m, OrderedSet **servers); |
164 | int manager_compile_search_domains(Manager *m, OrderedSet **domains); | |
165 | ||
166 | DnssecMode manager_get_dnssec_mode(Manager *m); | |
167 | bool manager_dnssec_supported(Manager *m); | |
168 | ||
169 | void manager_dnssec_verdict(Manager *m, DnssecVerdict verdict, const DnsResourceKey *key); | |
170 | ||
171 | bool manager_routable(Manager *m, int family); |