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Commit | Line | Data |
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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
74b2466e LP |
2 | #pragma once |
3 | ||
74b2466e | 4 | #include "list.h" |
be28f72d | 5 | #include "ratelimit.h" |
74b2466e | 6 | |
be28f72d | 7 | typedef struct DnsQueryCandidate DnsQueryCandidate; |
74b2466e LP |
8 | typedef struct DnsScope DnsScope; |
9 | ||
322345fd | 10 | #include "resolved-dns-cache.h" |
24710c48 | 11 | #include "resolved-dns-dnssec.h" |
71d35b6b | 12 | #include "resolved-dns-packet.h" |
176a9a2c | 13 | #include "resolved-dns-query.h" |
07f264e4 | 14 | #include "resolved-dns-search-domain.h" |
71d35b6b | 15 | #include "resolved-dns-server.h" |
07f264e4 | 16 | #include "resolved-dns-stream.h" |
623a4c97 | 17 | #include "resolved-dns-zone.h" |
74b2466e | 18 | |
74b2466e LP |
19 | typedef enum DnsScopeMatch { |
20 | DNS_SCOPE_NO, | |
da920fe1 | 21 | DNS_SCOPE_LAST_RESORT, |
74b2466e | 22 | DNS_SCOPE_MAYBE, |
a97a3b25 LP |
23 | DNS_SCOPE_YES_BASE, /* Add the number of matching labels to this */ |
24 | DNS_SCOPE_YES_END = DNS_SCOPE_YES_BASE + DNS_N_LABELS_MAX, | |
74b2466e | 25 | _DNS_SCOPE_MATCH_MAX, |
2d93c20e | 26 | _DNS_SCOPE_MATCH_INVALID = -EINVAL, |
74b2466e LP |
27 | } DnsScopeMatch; |
28 | ||
29 | struct DnsScope { | |
30 | Manager *manager; | |
31 | ||
1716f6dc | 32 | DnsProtocol protocol; |
0dd25fb9 | 33 | int family; |
89307df3 LP |
34 | |
35 | /* Copied at scope creation time from the link/manager */ | |
24710c48 | 36 | DnssecMode dnssec_mode; |
c9299be2 | 37 | DnsOverTlsMode dns_over_tls_mode; |
74b2466e LP |
38 | |
39 | Link *link; | |
40 | ||
322345fd | 41 | DnsCache cache; |
623a4c97 | 42 | DnsZone zone; |
322345fd | 43 | |
1e43061b | 44 | OrderedHashmap *conflict_queue; |
a4076574 LP |
45 | sd_event_source *conflict_event_source; |
46 | ||
53fda2bb DR |
47 | sd_event_source *announce_event_source; |
48 | ||
d08566fa VCS |
49 | sd_event_source *mdns_goodbye_event_source; |
50 | ||
aea2429d LP |
51 | RateLimit ratelimit; |
52 | ||
9df3ba6c TG |
53 | usec_t resend_timeout; |
54 | usec_t max_rtt; | |
55 | ||
801ad6a6 | 56 | LIST_HEAD(DnsQueryCandidate, query_candidates); |
74b2466e | 57 | |
775ae354 LP |
58 | /* Note that we keep track of ongoing transactions in two ways: once in a hashmap, indexed by the rr |
59 | * key, and once in a linked list. We use the hashmap to quickly find transactions we can reuse for a | |
60 | * key. But note that there might be multiple transactions for the same key (because the associated | |
61 | * query flags might differ in incompatible ways: e.g. we may not reuse a non-validating transaction | |
62 | * as validating. Hence we maintain a per-key list of transactions, which we iterate through to find | |
63 | * one we can reuse with matching flags. */ | |
f9ebb22a LP |
64 | Hashmap *transactions_by_key; |
65 | LIST_HEAD(DnsTransaction, transactions); | |
66 | ||
74b2466e | 67 | LIST_FIELDS(DnsScope, scopes); |
ebfdf45a ZJS |
68 | |
69 | bool announced; | |
74b2466e LP |
70 | }; |
71 | ||
0dd25fb9 | 72 | int dns_scope_new(Manager *m, DnsScope **ret, Link *l, DnsProtocol p, int family); |
74b2466e LP |
73 | DnsScope* dns_scope_free(DnsScope *s); |
74 | ||
9df3ba6c TG |
75 | void dns_scope_packet_received(DnsScope *s, usec_t rtt); |
76 | void dns_scope_packet_lost(DnsScope *s, usec_t usec); | |
77 | ||
d79677ab | 78 | int dns_scope_emit_udp(DnsScope *s, int fd, int af, DnsPacket *p); |
91ccab1e | 79 | int dns_scope_socket_tcp(DnsScope *s, int family, const union in_addr_union *address, DnsServer *server, uint16_t port, union sockaddr_union *ret_socket_address); |
da9de738 | 80 | int dns_scope_socket_udp(DnsScope *s, DnsServer *server); |
ad867662 | 81 | |
d0eae64c | 82 | DnsScopeMatch dns_scope_good_domain(DnsScope *s, DnsQuery *q, uint64_t query_flags); |
011696f7 | 83 | bool dns_scope_good_key(DnsScope *s, const DnsResourceKey *key); |
74b2466e | 84 | |
2c27fbca | 85 | DnsServer *dns_scope_get_dns_server(DnsScope *s); |
44db02d0 | 86 | unsigned dns_scope_get_n_dns_servers(DnsScope *s); |
5e8bc852 | 87 | void dns_scope_next_dns_server(DnsScope *s, DnsServer *if_current); |
1716f6dc LP |
88 | |
89 | int dns_scope_llmnr_membership(DnsScope *s, bool b); | |
0db4c90a | 90 | int dns_scope_mdns_membership(DnsScope *s, bool b); |
623a4c97 | 91 | |
3b991089 | 92 | int dns_scope_make_reply_packet(DnsScope *s, uint16_t id, int rcode, DnsQuestion *q, DnsAnswer *answer, DnsAnswer *soa, bool tentative, DnsPacket **ret); |
623a4c97 | 93 | void dns_scope_process_query(DnsScope *s, DnsStream *stream, DnsPacket *p); |
ec2c5e43 | 94 | |
775ae354 | 95 | DnsTransaction *dns_scope_find_transaction(DnsScope *scope, DnsResourceKey *key, uint64_t query_flags); |
a4076574 LP |
96 | |
97 | int dns_scope_notify_conflict(DnsScope *scope, DnsResourceRecord *rr); | |
98 | void dns_scope_check_conflicts(DnsScope *scope, DnsPacket *p); | |
4d506d6b LP |
99 | |
100 | void dns_scope_dump(DnsScope *s, FILE *f); | |
a51c1048 LP |
101 | |
102 | DnsSearchDomain *dns_scope_get_search_domains(DnsScope *s); | |
801ad6a6 | 103 | |
3b5bd7d6 | 104 | bool dns_scope_name_wants_search_domain(DnsScope *s, const char *name); |
edbcc1fd LP |
105 | |
106 | bool dns_scope_network_good(DnsScope *s); | |
97ebebbc LP |
107 | |
108 | int dns_scope_ifindex(DnsScope *s); | |
53fda2bb | 109 | |
1a63fc54 | 110 | int dns_scope_announce(DnsScope *scope, bool goodbye); |
6db6a464 DR |
111 | |
112 | int dns_scope_add_dnssd_services(DnsScope *scope); | |
6db6a464 | 113 | int dns_scope_remove_dnssd_services(DnsScope *scope); |
f76fa088 | 114 | |
ca5394d2 | 115 | bool dns_scope_is_default_route(DnsScope *scope); |
e0930aa6 LP |
116 | |
117 | int dns_scope_dump_cache_to_json(DnsScope *scope, JsonVariant **ret); | |
8841d1ce LP |
118 | |
119 | int dns_type_suitable_for_protocol(uint16_t type, DnsProtocol protocol); | |
120 | int dns_question_types_suitable_for_protocol(DnsQuestion *q, DnsProtocol protocol); |