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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
74b2466e LP |
2 | #pragma once |
3 | ||
61c12865 LP |
4 | #include <sys/stat.h> |
5 | ||
091a364c | 6 | #include "sd-event.h" |
1c4baffc | 7 | #include "sd-netlink.h" |
71d35b6b TA |
8 | #include "sd-network.h" |
9 | ||
bb351718 | 10 | #include "common-signal.h" |
74b2466e | 11 | #include "hashmap.h" |
71d35b6b | 12 | #include "list.h" |
9176a57c | 13 | #include "ordered-set.h" |
af49ca27 | 14 | #include "resolve-util.h" |
9581bb84 | 15 | #include "varlink.h" |
091a364c | 16 | |
091a364c | 17 | typedef struct Manager Manager; |
19b50b5b LP |
18 | |
19 | #include "resolved-dns-query.h" | |
a51c1048 | 20 | #include "resolved-dns-search-domain.h" |
19b50b5b | 21 | #include "resolved-dns-stream.h" |
ae8f0ec3 | 22 | #include "resolved-dns-stub.h" |
0d2cd476 | 23 | #include "resolved-dns-trust-anchor.h" |
19b50b5b | 24 | #include "resolved-link.h" |
80710ade | 25 | #include "resolved-socket-graveyard.h" |
4e945a6f | 26 | |
b950ee06 LP |
27 | #define MANAGER_SEARCH_DOMAINS_MAX 256 |
28 | #define MANAGER_DNS_SERVERS_MAX 256 | |
eed857b7 | 29 | |
37b7cc8d ZJS |
30 | typedef struct EtcHosts { |
31 | Hashmap *by_address; | |
32 | Hashmap *by_name; | |
fd373593 | 33 | Set *no_address; |
37b7cc8d ZJS |
34 | } EtcHosts; |
35 | ||
091a364c TG |
36 | struct Manager { |
37 | sd_event *event; | |
38 | ||
af49ca27 LP |
39 | ResolveSupport llmnr_support; |
40 | ResolveSupport mdns_support; | |
ad6c0475 | 41 | DnssecMode dnssec_mode; |
c9299be2 | 42 | DnsOverTlsMode dns_over_tls_mode; |
37d7a7d9 | 43 | DnsCacheMode enable_cache; |
6d8325f6 | 44 | bool cache_from_localhost; |
1ae43295 | 45 | DnsStubListenerMode dns_stub_listener_mode; |
5ed91481 | 46 | usec_t stale_retention_usec; |
1716f6dc | 47 | |
e22c5b20 IT |
48 | #if ENABLE_DNS_OVER_TLS |
49 | DnsTlsManagerData dnstls_data; | |
50 | #endif | |
51 | ||
1716f6dc | 52 | /* Network */ |
74b2466e LP |
53 | Hashmap *links; |
54 | ||
1c4baffc | 55 | sd_netlink *rtnl; |
74b2466e LP |
56 | sd_event_source *rtnl_event_source; |
57 | ||
091a364c | 58 | sd_network_monitor *network_monitor; |
74b2466e LP |
59 | sd_event_source *network_event_source; |
60 | ||
1716f6dc | 61 | /* DNS query management */ |
ec2c5e43 | 62 | Hashmap *dns_transactions; |
1716f6dc LP |
63 | LIST_HEAD(DnsQuery, dns_queries); |
64 | unsigned n_dns_queries; | |
bde69bbd | 65 | Hashmap *stub_queries_by_packet; |
1716f6dc | 66 | |
623a4c97 | 67 | LIST_HEAD(DnsStream, dns_streams); |
652ba568 | 68 | unsigned n_dns_streams[_DNS_STREAM_TYPE_MAX]; |
623a4c97 | 69 | |
1716f6dc | 70 | /* Unicast dns */ |
74b2466e | 71 | LIST_HEAD(DnsServer, dns_servers); |
4e945a6f | 72 | LIST_HEAD(DnsServer, fallback_dns_servers); |
eed857b7 | 73 | unsigned n_dns_servers; /* counts both main and fallback */ |
74b2466e LP |
74 | DnsServer *current_dns_server; |
75 | ||
a51c1048 | 76 | LIST_HEAD(DnsSearchDomain, search_domains); |
eed857b7 | 77 | unsigned n_search_domains; |
a51c1048 | 78 | |
c2f1e83e ZJS |
79 | bool need_builtin_fallbacks; |
80 | bool read_resolv_conf; | |
3b5bd7d6 | 81 | bool resolve_unicast_single_label; |
a51c1048 | 82 | |
61c12865 | 83 | struct stat resolv_conf_stat; |
5cb36f41 | 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; | |
6d76b5d7 LP |
104 | sd_event_source *mdns_ipv4_event_source; |
105 | sd_event_source *mdns_ipv6_event_source; | |
bc7702b0 | 106 | |
6501dd31 DR |
107 | /* DNS-SD */ |
108 | Hashmap *dnssd_services; | |
109 | ||
74b2466e LP |
110 | /* dbus */ |
111 | sd_bus *bus; | |
623a4c97 LP |
112 | |
113 | /* The hostname we publish on LLMNR and mDNS */ | |
e96de0ce | 114 | char *full_hostname; |
78c6a153 LP |
115 | char *llmnr_hostname; |
116 | char *mdns_hostname; | |
117 | DnsResourceKey *llmnr_host_ipv4_key; | |
118 | DnsResourceKey *llmnr_host_ipv6_key; | |
400cb36e DR |
119 | DnsResourceKey *mdns_host_ipv4_key; |
120 | DnsResourceKey *mdns_host_ipv6_key; | |
eb60f9cd LP |
121 | |
122 | /* Watch the system hostname */ | |
123 | int hostname_fd; | |
124 | sd_event_source *hostname_event_source; | |
902bb5d8 | 125 | |
4d506d6b | 126 | sd_event_source *sigusr1_event_source; |
bc81447e | 127 | sd_event_source *sigusr2_event_source; |
d55b0463 | 128 | sd_event_source *sigrtmin1_event_source; |
a150ff5e LP |
129 | |
130 | unsigned n_transactions_total; | |
bc837621 KV |
131 | unsigned n_timeouts_total; |
132 | unsigned n_timeouts_served_stale_total; | |
133 | unsigned n_failure_responses_total; | |
134 | unsigned n_failure_responses_served_stale_total; | |
135 | ||
59c5b597 | 136 | unsigned n_dnssec_verdict[_DNSSEC_VERDICT_MAX]; |
dd0bc0f1 LP |
137 | |
138 | /* Data from /etc/hosts */ | |
37b7cc8d | 139 | EtcHosts etc_hosts; |
36d892b7 LP |
140 | usec_t etc_hosts_last; |
141 | struct stat etc_hosts_stat; | |
86317087 | 142 | bool read_etc_hosts; |
b30bf55d | 143 | |
1f05101f SS |
144 | OrderedSet *dns_extra_stub_listeners; |
145 | ||
7216a3b5 | 146 | /* Local DNS stub on 127.0.0.53:53 */ |
b30bf55d LP |
147 | sd_event_source *dns_stub_udp_event_source; |
148 | sd_event_source *dns_stub_tcp_event_source; | |
84b0f133 | 149 | |
a8d09063 LP |
150 | /* Local DNS proxy stub on 127.0.0.54:53 */ |
151 | sd_event_source *dns_proxy_stub_udp_event_source; | |
152 | sd_event_source *dns_proxy_stub_tcp_event_source; | |
153 | ||
84b0f133 | 154 | Hashmap *polkit_registry; |
9581bb84 LP |
155 | |
156 | VarlinkServer *varlink_server; | |
227e1279 | 157 | VarlinkServer *varlink_monitor_server; |
cb456374 SK |
158 | |
159 | Set *varlink_subscription; | |
90df0fbe LP |
160 | |
161 | sd_event_source *clock_change_event_source; | |
80710ade LP |
162 | |
163 | LIST_HEAD(SocketGraveyard, socket_graveyard); | |
164 | SocketGraveyard *socket_graveyard_oldest; | |
165 | size_t n_socket_graveyard; | |
bb351718 LP |
166 | |
167 | struct sigrtmin18_info sigrtmin18_info; | |
091a364c TG |
168 | }; |
169 | ||
170 | /* Manager */ | |
171 | ||
172 | int manager_new(Manager **ret); | |
74b2466e LP |
173 | Manager* manager_free(Manager *m); |
174 | ||
edc501d4 | 175 | int manager_start(Manager *m); |
74b2466e | 176 | |
e1c95994 | 177 | uint32_t manager_find_mtu(Manager *m); |
091a364c | 178 | |
d9f9b8ce | 179 | int manager_monitor_send(Manager *m, DnsQuery *q); |
cb456374 | 180 | |
ed6c5178 | 181 | int sendmsg_loop(int fd, struct msghdr *mh, int flags); |
72290734 | 182 | int manager_write(Manager *m, int fd, DnsPacket *p); |
b30bf55d | 183 | 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 | 184 | int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret); |
74b2466e | 185 | |
623a4c97 | 186 | int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr); |
4e945a6f | 187 | LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr); |
ec2c5e43 | 188 | |
eb60f9cd | 189 | void manager_refresh_rrs(Manager *m); |
ec2c5e43 | 190 | int manager_next_hostname(Manager *m); |
74b2466e | 191 | |
94378145 | 192 | bool manager_packet_from_local_address(Manager *m, DnsPacket *p); |
a9fd8837 LP |
193 | bool manager_packet_from_our_transaction(Manager *m, DnsPacket *p); |
194 | ||
a4076574 | 195 | DnsScope* manager_find_scope(Manager *m, DnsPacket *p); |
091a364c | 196 | |
902bb5d8 LP |
197 | void manager_verify_all(Manager *m); |
198 | ||
091a364c | 199 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); |
091a364c | 200 | |
15dd4515 | 201 | /* For some reason we need some extra cmsg space on some kernels/archs. One of those days we need to figure out why */ |
623a4c97 | 202 | #define EXTRA_CMSG_SPACE 1024 |
4e945a6f | 203 | |
78c6a153 LP |
204 | int manager_is_own_hostname(Manager *m, const char *name); |
205 | ||
9176a57c | 206 | int manager_compile_dns_servers(Manager *m, OrderedSet **servers); |
6f7da49d | 207 | int manager_compile_search_domains(Manager *m, OrderedSet **domains, int filter_route); |
c69fa7e3 LP |
208 | |
209 | DnssecMode manager_get_dnssec_mode(Manager *m); | |
210 | bool manager_dnssec_supported(Manager *m); | |
59c5b597 | 211 | |
c9299be2 | 212 | DnsOverTlsMode manager_get_dns_over_tls_mode(Manager *m); |
5d67a7ae | 213 | |
59c5b597 | 214 | void manager_dnssec_verdict(Manager *m, DnssecVerdict verdict, const DnsResourceKey *key); |
011696f7 | 215 | |
de4a0138 | 216 | bool manager_routable(Manager *m); |
ba35662f | 217 | |
90df0fbe | 218 | void manager_flush_caches(Manager *m, int log_level); |
59c0fd0e | 219 | void manager_reset_server_features(Manager *m); |
943ef07c LP |
220 | |
221 | void manager_cleanup_saved_user(Manager *m); | |
e7c1b0e4 DR |
222 | |
223 | bool manager_next_dnssd_names(Manager *m); | |
49ef064c LP |
224 | |
225 | bool manager_server_is_stub(Manager *m, DnsServer *s); | |
eb170e75 LP |
226 | |
227 | int socket_disable_pmtud(int fd, int af); | |
bc837621 KV |
228 | |
229 | int dns_manager_dump_statistics_json(Manager *m, JsonVariant **ret); | |
230 | ||
a67e5c6e | 231 | void dns_manager_reset_statistics(Manager *m); |