7778dffff3
This new functions exports cached records of type PTR, SRV and TXT into an existing DnsPacket. This is used in order to fill in known records to mDNS queries, for known answer supression.
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2014 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "hashmap.h"
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#include "list.h"
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#include "prioq.h"
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#include "time-util.h"
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typedef struct DnsCache {
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Hashmap *by_key;
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Prioq *by_expiry;
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} DnsCache;
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#include "resolved-dns-answer.h"
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#include "resolved-dns-packet.h"
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#include "resolved-dns-question.h"
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#include "resolved-dns-rr.h"
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void dns_cache_flush(DnsCache *c);
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void dns_cache_prune(DnsCache *c);
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int dns_cache_put(DnsCache *c, DnsResourceKey *key, int rcode, DnsAnswer *answer, unsigned max_rrs, bool authenticated, usec_t timestamp, int owner_family, const union in_addr_union *owner_address);
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int dns_cache_lookup(DnsCache *c, DnsResourceKey *key, int *rcode, DnsAnswer **answer, bool *authenticated);
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int dns_cache_check_conflicts(DnsCache *cache, DnsResourceRecord *rr, int owner_family, const union in_addr_union *owner_address);
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void dns_cache_dump(DnsCache *cache, FILE *f);
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bool dns_cache_is_empty(DnsCache *cache);
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int dns_cache_export_shared_to_packet(DnsCache *cache, DnsPacket *p);
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