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a032b68d | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
5eef597e MP |
2 | #pragma once |
3 | ||
a10f5d05 MB |
4 | #include <sys/stat.h> |
5 | ||
5eef597e | 6 | #include "sd-event.h" |
86f210e9 | 7 | #include "sd-netlink.h" |
4c89c718 MP |
8 | #include "sd-network.h" |
9 | ||
5eef597e | 10 | #include "hashmap.h" |
4c89c718 MP |
11 | #include "list.h" |
12 | #include "ordered-set.h" | |
13 | #include "resolve-util.h" | |
a032b68d | 14 | #include "varlink.h" |
5eef597e MP |
15 | |
16 | typedef struct Manager Manager; | |
5eef597e MP |
17 | |
18 | #include "resolved-dns-query.h" | |
4c89c718 | 19 | #include "resolved-dns-search-domain.h" |
5eef597e | 20 | #include "resolved-dns-stream.h" |
a032b68d | 21 | #include "resolved-dns-stub.h" |
4c89c718 | 22 | #include "resolved-dns-trust-anchor.h" |
5eef597e | 23 | #include "resolved-link.h" |
3a6ce677 | 24 | #include "resolved-socket-graveyard.h" |
5eef597e | 25 | |
6e866b33 MB |
26 | #define MANAGER_SEARCH_DOMAINS_MAX 256 |
27 | #define MANAGER_DNS_SERVERS_MAX 256 | |
28 | ||
29 | typedef struct EtcHosts { | |
30 | Hashmap *by_address; | |
31 | Hashmap *by_name; | |
32 | Set *no_address; | |
33 | } EtcHosts; | |
4c89c718 | 34 | |
5eef597e MP |
35 | struct Manager { |
36 | sd_event *event; | |
37 | ||
4c89c718 MP |
38 | ResolveSupport llmnr_support; |
39 | ResolveSupport mdns_support; | |
40 | DnssecMode dnssec_mode; | |
b012e921 | 41 | DnsOverTlsMode dns_over_tls_mode; |
f2dec872 | 42 | DnsCacheMode enable_cache; |
3a6ce677 | 43 | bool cache_from_localhost; |
8a584da2 | 44 | DnsStubListenerMode dns_stub_listener_mode; |
5eef597e | 45 | |
f2dec872 BR |
46 | #if ENABLE_DNS_OVER_TLS |
47 | DnsTlsManagerData dnstls_data; | |
48 | #endif | |
49 | ||
5eef597e MP |
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; | |
3a6ce677 | 63 | Hashmap *stub_queries_by_packet; |
5eef597e MP |
64 | |
65 | LIST_HEAD(DnsStream, dns_streams); | |
bb4f798a | 66 | unsigned n_dns_streams[_DNS_STREAM_TYPE_MAX]; |
5eef597e MP |
67 | |
68 | /* Unicast dns */ | |
5eef597e MP |
69 | LIST_HEAD(DnsServer, dns_servers); |
70 | LIST_HEAD(DnsServer, fallback_dns_servers); | |
4c89c718 | 71 | unsigned n_dns_servers; /* counts both main and fallback */ |
5eef597e MP |
72 | DnsServer *current_dns_server; |
73 | ||
4c89c718 MP |
74 | LIST_HEAD(DnsSearchDomain, search_domains); |
75 | unsigned n_search_domains; | |
4c89c718 | 76 | |
a10f5d05 MB |
77 | bool need_builtin_fallbacks; |
78 | bool read_resolv_conf; | |
79 | bool resolve_unicast_single_label; | |
4c89c718 | 80 | |
a10f5d05 | 81 | struct stat resolv_conf_stat; |
5eef597e | 82 | |
4c89c718 MP |
83 | DnsTrustAnchor trust_anchor; |
84 | ||
5eef597e MP |
85 | LIST_HEAD(DnsScope, dns_scopes); |
86 | DnsScope *unicast_scope; | |
87 | ||
88 | /* LLMNR */ | |
89 | int llmnr_ipv4_udp_fd; | |
90 | int llmnr_ipv6_udp_fd; | |
91 | int llmnr_ipv4_tcp_fd; | |
92 | int llmnr_ipv6_tcp_fd; | |
93 | ||
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; | |
98 | ||
4c89c718 MP |
99 | /* mDNS */ |
100 | int mdns_ipv4_fd; | |
101 | int mdns_ipv6_fd; | |
3a6ce677 BR |
102 | sd_event_source *mdns_ipv4_event_source; |
103 | sd_event_source *mdns_ipv6_event_source; | |
4c89c718 | 104 | |
52ad194e MB |
105 | /* DNS-SD */ |
106 | Hashmap *dnssd_services; | |
107 | ||
5eef597e MP |
108 | /* dbus */ |
109 | sd_bus *bus; | |
5eef597e MP |
110 | |
111 | /* The hostname we publish on LLMNR and mDNS */ | |
2897b343 | 112 | char *full_hostname; |
13d276d0 MP |
113 | char *llmnr_hostname; |
114 | char *mdns_hostname; | |
115 | DnsResourceKey *llmnr_host_ipv4_key; | |
116 | DnsResourceKey *llmnr_host_ipv6_key; | |
2897b343 MP |
117 | DnsResourceKey *mdns_host_ipv4_key; |
118 | DnsResourceKey *mdns_host_ipv6_key; | |
5eef597e MP |
119 | |
120 | /* Watch the system hostname */ | |
121 | int hostname_fd; | |
122 | sd_event_source *hostname_event_source; | |
123 | ||
13d276d0 | 124 | sd_event_source *sigusr1_event_source; |
5a920b42 | 125 | sd_event_source *sigusr2_event_source; |
f5e65279 | 126 | sd_event_source *sigrtmin1_event_source; |
4c89c718 MP |
127 | |
128 | unsigned n_transactions_total; | |
129 | unsigned n_dnssec_verdict[_DNSSEC_VERDICT_MAX]; | |
130 | ||
131 | /* Data from /etc/hosts */ | |
6e866b33 | 132 | EtcHosts etc_hosts; |
3a6ce677 BR |
133 | usec_t etc_hosts_last; |
134 | struct stat etc_hosts_stat; | |
6e866b33 | 135 | bool read_etc_hosts; |
5a920b42 | 136 | |
a032b68d | 137 | OrderedSet *dns_extra_stub_listeners; |
5a920b42 | 138 | |
a032b68d | 139 | /* Local DNS stub on 127.0.0.53:53 */ |
5a920b42 MP |
140 | sd_event_source *dns_stub_udp_event_source; |
141 | sd_event_source *dns_stub_tcp_event_source; | |
52ad194e | 142 | |
ea0999c9 MB |
143 | /* Local DNS proxy stub on 127.0.0.54:53 */ |
144 | sd_event_source *dns_proxy_stub_udp_event_source; | |
145 | sd_event_source *dns_proxy_stub_tcp_event_source; | |
146 | ||
52ad194e | 147 | Hashmap *polkit_registry; |
a032b68d MB |
148 | |
149 | VarlinkServer *varlink_server; | |
086111aa LB |
150 | VarlinkServer *varlink_monitor_server; |
151 | ||
152 | Set *varlink_subscription; | |
3a6ce677 BR |
153 | |
154 | sd_event_source *clock_change_event_source; | |
155 | ||
156 | LIST_HEAD(SocketGraveyard, socket_graveyard); | |
157 | SocketGraveyard *socket_graveyard_oldest; | |
158 | size_t n_socket_graveyard; | |
5eef597e MP |
159 | }; |
160 | ||
161 | /* Manager */ | |
162 | ||
163 | int manager_new(Manager **ret); | |
164 | Manager* manager_free(Manager *m); | |
165 | ||
166 | int manager_start(Manager *m); | |
5eef597e MP |
167 | |
168 | uint32_t manager_find_mtu(Manager *m); | |
169 | ||
086111aa LB |
170 | int manager_monitor_send(Manager *m, int state, int rcode, int error, DnsQuestion *question_idna, DnsQuestion *question_utf8, DnsQuestion *collected_questions, DnsAnswer *answer); |
171 | ||
7035cd9e | 172 | int manager_write(Manager *m, int fd, DnsPacket *p); |
5a920b42 | 173 | 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); |
5eef597e MP |
174 | int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret); |
175 | ||
5eef597e MP |
176 | int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr); |
177 | LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr); | |
178 | ||
179 | void manager_refresh_rrs(Manager *m); | |
180 | int manager_next_hostname(Manager *m); | |
181 | ||
3a6ce677 BR |
182 | bool manager_packet_from_local_address(Manager *m, DnsPacket *p); |
183 | bool manager_packet_from_our_transaction(Manager *m, DnsPacket *p); | |
184 | ||
5eef597e MP |
185 | DnsScope* manager_find_scope(Manager *m, DnsPacket *p); |
186 | ||
187 | void manager_verify_all(Manager *m); | |
188 | ||
5eef597e MP |
189 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); |
190 | ||
a10f5d05 | 191 | /* For some reason we need some extra cmsg space on some kernels/archs. One of those days we need to figure out why */ |
5eef597e MP |
192 | #define EXTRA_CMSG_SPACE 1024 |
193 | ||
13d276d0 MP |
194 | int manager_is_own_hostname(Manager *m, const char *name); |
195 | ||
4c89c718 | 196 | int manager_compile_dns_servers(Manager *m, OrderedSet **servers); |
5a920b42 | 197 | int manager_compile_search_domains(Manager *m, OrderedSet **domains, int filter_route); |
4c89c718 MP |
198 | |
199 | DnssecMode manager_get_dnssec_mode(Manager *m); | |
200 | bool manager_dnssec_supported(Manager *m); | |
201 | ||
b012e921 MB |
202 | DnsOverTlsMode manager_get_dns_over_tls_mode(Manager *m); |
203 | ||
4c89c718 MP |
204 | void manager_dnssec_verdict(Manager *m, DnssecVerdict verdict, const DnsResourceKey *key); |
205 | ||
a032b68d | 206 | bool manager_routable(Manager *m); |
5a920b42 | 207 | |
3a6ce677 | 208 | void manager_flush_caches(Manager *m, int log_level); |
f5e65279 | 209 | void manager_reset_server_features(Manager *m); |
5a920b42 MP |
210 | |
211 | void manager_cleanup_saved_user(Manager *m); | |
52ad194e MB |
212 | |
213 | bool manager_next_dnssd_names(Manager *m); | |
3a6ce677 BR |
214 | |
215 | bool manager_server_is_stub(Manager *m, DnsServer *s); | |
216 | ||
217 | int socket_disable_pmtud(int fd, int af); |