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networkd-test: stop varlink socket before setting up runtime directories
[thirdparty/systemd.git] / src / resolve / resolved-manager.h
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db9ecf05 1/* SPDX-License-Identifier: LGPL-2.1-or-later */
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2#pragma once
3
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4#include <sys/stat.h>
5
bb351718 6#include "common-signal.h"
284d7641 7#include "forward.h"
71d35b6b 8#include "list.h"
af49ca27 9#include "resolve-util.h"
68527d30 10#include "resolved-dns-dnssec.h"
19b50b5b 11#include "resolved-dns-stream.h"
ae8f0ec3 12#include "resolved-dns-stub.h"
0d2cd476 13#include "resolved-dns-trust-anchor.h"
68527d30 14#include "resolved-etc-hosts.h"
284d7641 15#include "resolved-forward.h"
4e945a6f 16
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17#define MANAGER_SEARCH_DOMAINS_MAX 256
18#define MANAGER_DNS_SERVERS_MAX 256
eed857b7 19
68527d30 20typedef struct Manager {
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21 sd_event *event;
22
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23 ResolveSupport llmnr_support;
24 ResolveSupport mdns_support;
ad6c0475 25 DnssecMode dnssec_mode;
c9299be2 26 DnsOverTlsMode dns_over_tls_mode;
37d7a7d9 27 DnsCacheMode enable_cache;
6d8325f6 28 bool cache_from_localhost;
1ae43295 29 DnsStubListenerMode dns_stub_listener_mode;
5ed91481 30 usec_t stale_retention_usec;
1716f6dc 31
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32#if ENABLE_DNS_OVER_TLS
33 DnsTlsManagerData dnstls_data;
34#endif
35
1716f6dc 36 /* Network */
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37 Hashmap *links;
38
1c4baffc 39 sd_netlink *rtnl;
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40 sd_event_source *rtnl_event_source;
41
091a364c 42 sd_network_monitor *network_monitor;
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43 sd_event_source *network_event_source;
44
1716f6dc 45 /* DNS query management */
ec2c5e43 46 Hashmap *dns_transactions;
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47 LIST_HEAD(DnsQuery, dns_queries);
48 unsigned n_dns_queries;
bde69bbd 49 Hashmap *stub_queries_by_packet;
1716f6dc 50
623a4c97 51 LIST_HEAD(DnsStream, dns_streams);
652ba568 52 unsigned n_dns_streams[_DNS_STREAM_TYPE_MAX];
623a4c97 53
1716f6dc 54 /* Unicast dns */
74b2466e 55 LIST_HEAD(DnsServer, dns_servers);
4e945a6f 56 LIST_HEAD(DnsServer, fallback_dns_servers);
eed857b7 57 unsigned n_dns_servers; /* counts both main and fallback */
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58 DnsServer *current_dns_server;
59
a51c1048 60 LIST_HEAD(DnsSearchDomain, search_domains);
eed857b7 61 unsigned n_search_domains;
a51c1048 62
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63 bool need_builtin_fallbacks;
64 bool read_resolv_conf;
3b5bd7d6 65 bool resolve_unicast_single_label;
a51c1048 66
61c12865 67 struct stat resolv_conf_stat;
5cb36f41 68
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69 DnsTrustAnchor trust_anchor;
70
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71 LIST_HEAD(DnsScope, dns_scopes);
72 DnsScope *unicast_scope;
73
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74 Hashmap *delegates; /* id string → DnsDelegate objects */
75
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76 /* LLMNR */
77 int llmnr_ipv4_udp_fd;
78 int llmnr_ipv6_udp_fd;
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79 int llmnr_ipv4_tcp_fd;
80 int llmnr_ipv6_tcp_fd;
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81
82 sd_event_source *llmnr_ipv4_udp_event_source;
83 sd_event_source *llmnr_ipv6_udp_event_source;
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84 sd_event_source *llmnr_ipv4_tcp_event_source;
85 sd_event_source *llmnr_ipv6_tcp_event_source;
1716f6dc 86
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87 /* mDNS */
88 int mdns_ipv4_fd;
89 int mdns_ipv6_fd;
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90 sd_event_source *mdns_ipv4_event_source;
91 sd_event_source *mdns_ipv6_event_source;
bc7702b0 92
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93 /* DNS-SD */
94 Hashmap *dnssd_services;
95
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96 /* dbus */
97 sd_bus *bus;
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98
99 /* The hostname we publish on LLMNR and mDNS */
e96de0ce 100 char *full_hostname;
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101 char *llmnr_hostname;
102 char *mdns_hostname;
103 DnsResourceKey *llmnr_host_ipv4_key;
104 DnsResourceKey *llmnr_host_ipv6_key;
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105 DnsResourceKey *mdns_host_ipv4_key;
106 DnsResourceKey *mdns_host_ipv6_key;
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107
108 /* Watch the system hostname */
109 int hostname_fd;
110 sd_event_source *hostname_event_source;
902bb5d8 111
a150ff5e 112 unsigned n_transactions_total;
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113 unsigned n_timeouts_total;
114 unsigned n_timeouts_served_stale_total;
115 unsigned n_failure_responses_total;
116 unsigned n_failure_responses_served_stale_total;
117
59c5b597 118 unsigned n_dnssec_verdict[_DNSSEC_VERDICT_MAX];
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119
120 /* Data from /etc/hosts */
37b7cc8d 121 EtcHosts etc_hosts;
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122 usec_t etc_hosts_last;
123 struct stat etc_hosts_stat;
86317087 124 bool read_etc_hosts;
b30bf55d 125
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126 /* List of refused DNS Record Types*/
127 Set *refuse_record_types;
128
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129 OrderedSet *dns_extra_stub_listeners;
130
7216a3b5 131 /* Local DNS stub on 127.0.0.53:53 */
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132 sd_event_source *dns_stub_udp_event_source;
133 sd_event_source *dns_stub_tcp_event_source;
84b0f133 134
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135 /* Local DNS proxy stub on 127.0.0.54:53 */
136 sd_event_source *dns_proxy_stub_udp_event_source;
137 sd_event_source *dns_proxy_stub_tcp_event_source;
138
84b0f133 139 Hashmap *polkit_registry;
9581bb84 140
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141 sd_varlink_server *varlink_server;
142 sd_varlink_server *varlink_monitor_server;
cb456374 143
cf22b5c5 144 Set *varlink_query_results_subscription;
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145 Set *varlink_dns_configuration_subscription;
146
147 sd_json_variant *dns_configuration_json;
148
149 sd_netlink_slot *netlink_new_route_slot;
150 sd_netlink_slot *netlink_del_route_slot;
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151
152 sd_event_source *clock_change_event_source;
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153
154 LIST_HEAD(SocketGraveyard, socket_graveyard);
155 SocketGraveyard *socket_graveyard_oldest;
156 size_t n_socket_graveyard;
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157
158 struct sigrtmin18_info sigrtmin18_info;
68527d30 159} Manager;
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160
161/* Manager */
162
163int manager_new(Manager **ret);
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164Manager* manager_free(Manager *m);
165
edc501d4 166int manager_start(Manager *m);
74b2466e 167
e1c95994 168uint32_t manager_find_mtu(Manager *m);
091a364c 169
d9f9b8ce 170int manager_monitor_send(Manager *m, DnsQuery *q);
cb456374 171
ed6c5178 172int sendmsg_loop(int fd, struct msghdr *mh, int flags);
72290734 173int manager_write(Manager *m, int fd, DnsPacket *p);
b30bf55d 174int 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 175int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret);
74b2466e 176
623a4c97 177int manager_find_ifindex(Manager *m, int family, const union in_addr_union *in_addr);
4e945a6f 178LinkAddress* manager_find_link_address(Manager *m, int family, const union in_addr_union *in_addr);
ec2c5e43 179
eb60f9cd 180void manager_refresh_rrs(Manager *m);
ec2c5e43 181int manager_next_hostname(Manager *m);
74b2466e 182
94378145 183bool manager_packet_from_local_address(Manager *m, DnsPacket *p);
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184bool manager_packet_from_our_transaction(Manager *m, DnsPacket *p);
185
a4076574 186DnsScope* manager_find_scope(Manager *m, DnsPacket *p);
091a364c 187
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188void manager_verify_all(Manager *m);
189
091a364c 190DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
091a364c 191
15dd4515 192/* For some reason we need some extra cmsg space on some kernels/archs. One of those days we need to figure out why */
623a4c97 193#define EXTRA_CMSG_SPACE 1024
4e945a6f 194
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195int manager_is_own_hostname(Manager *m, const char *name);
196
9176a57c 197int manager_compile_dns_servers(Manager *m, OrderedSet **servers);
6f7da49d 198int manager_compile_search_domains(Manager *m, OrderedSet **domains, int filter_route);
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199
200DnssecMode manager_get_dnssec_mode(Manager *m);
201bool manager_dnssec_supported(Manager *m);
59c5b597 202
c9299be2 203DnsOverTlsMode manager_get_dns_over_tls_mode(Manager *m);
5d67a7ae 204
59c5b597 205void manager_dnssec_verdict(Manager *m, DnssecVerdict verdict, const DnsResourceKey *key);
011696f7 206
de4a0138 207bool manager_routable(Manager *m);
ba35662f 208
90df0fbe 209void manager_flush_caches(Manager *m, int log_level);
59c0fd0e 210void manager_reset_server_features(Manager *m);
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211
212void manager_cleanup_saved_user(Manager *m);
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213
214bool manager_next_dnssd_names(Manager *m);
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215
216bool manager_server_is_stub(Manager *m, DnsServer *s);
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217
218int socket_disable_pmtud(int fd, int af);
bc837621 219
309a747f 220int dns_manager_dump_statistics_json(Manager *m, sd_json_variant **ret);
bc837621 221
a67e5c6e 222void dns_manager_reset_statistics(Manager *m);
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223
224int manager_dump_dns_configuration_json(Manager *m, sd_json_variant **ret);
225int manager_send_dns_configuration_changed(Manager *m, Link *l, bool reset);
226
227int manager_start_dns_configuration_monitor(Manager *m);
228void manager_stop_dns_configuration_monitor(Manager *m);