c9c7206541
When validating a transaction we initially collect DNSKEY, DS, SOA RRs in the "validated_keys" list, that we need for the proofs. This includes DNSKEY and DS data from our trust anchor database. Quite possibly we learn that some of these DNSKEY/DS RRs have been revoked between the time we request and collect those additional RRs and we begin the validation step. In this case we need to make sure that the respective DS/DNSKEY RRs are removed again from our list. This patch adds that, and strips known revoked trust anchor RRs from the validated list before we begin the actual validation proof, and each time we add more DNSKEY material to it while we are doing the proof.
46 lines
1.5 KiB
C
46 lines
1.5 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 2015 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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typedef struct DnsTrustAnchor DnsTrustAnchor;
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#include "hashmap.h"
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#include "resolved-dns-answer.h"
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#include "resolved-dns-rr.h"
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/* This contains a fixed database mapping domain names to DS or DNSKEY records. */
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struct DnsTrustAnchor {
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Hashmap *positive_by_key;
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Set *negative_by_name;
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Set *revoked_by_rr;
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};
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int dns_trust_anchor_load(DnsTrustAnchor *d);
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void dns_trust_anchor_flush(DnsTrustAnchor *d);
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int dns_trust_anchor_lookup_positive(DnsTrustAnchor *d, const DnsResourceKey* key, DnsAnswer **answer);
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int dns_trust_anchor_lookup_negative(DnsTrustAnchor *d, const char *name);
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int dns_trust_anchor_check_revoked(DnsTrustAnchor *d, DnsResourceRecord *dnskey, DnsAnswer *rrs);
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int dns_trust_anchor_is_revoked(DnsTrustAnchor *d, DnsResourceRecord *rr);
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