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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
322345fd LP |
2 | #pragma once |
3 | ||
4 | /*** | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2014 Lennart Poettering | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
322345fd | 23 | #include "hashmap.h" |
71d35b6b | 24 | #include "list.h" |
322345fd LP |
25 | #include "prioq.h" |
26 | #include "time-util.h" | |
322345fd | 27 | |
322345fd | 28 | typedef struct DnsCache { |
7e8e0422 LP |
29 | Hashmap *by_key; |
30 | Prioq *by_expiry; | |
a150ff5e LP |
31 | unsigned n_hit; |
32 | unsigned n_miss; | |
322345fd LP |
33 | } DnsCache; |
34 | ||
faa133f3 | 35 | #include "resolved-dns-answer.h" |
7778dfff | 36 | #include "resolved-dns-packet.h" |
71d35b6b TA |
37 | #include "resolved-dns-question.h" |
38 | #include "resolved-dns-rr.h" | |
322345fd | 39 | |
322345fd LP |
40 | void dns_cache_flush(DnsCache *c); |
41 | void dns_cache_prune(DnsCache *c); | |
42 | ||
d3760be0 | 43 | int dns_cache_put(DnsCache *c, DnsResourceKey *key, int rcode, DnsAnswer *answer, bool authenticated, uint32_t nsec_ttl, usec_t timestamp, int owner_family, const union in_addr_union *owner_address); |
17c8de63 | 44 | int dns_cache_lookup(DnsCache *c, DnsResourceKey *key, bool clamp_ttl, int *rcode, DnsAnswer **answer, bool *authenticated); |
a4076574 LP |
45 | |
46 | int dns_cache_check_conflicts(DnsCache *cache, DnsResourceRecord *rr, int owner_family, const union in_addr_union *owner_address); | |
4d506d6b LP |
47 | |
48 | void dns_cache_dump(DnsCache *cache, FILE *f); | |
49 | bool dns_cache_is_empty(DnsCache *cache); | |
7778dfff | 50 | |
a150ff5e LP |
51 | unsigned dns_cache_size(DnsCache *cache); |
52 | ||
7778dfff | 53 | int dns_cache_export_shared_to_packet(DnsCache *cache, DnsPacket *p); |