93 lines
3.6 KiB
C
93 lines
3.6 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 enum DnssecMode DnssecMode;
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typedef enum DnssecResult DnssecResult;
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#include "dns-domain.h"
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#include "resolved-dns-answer.h"
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#include "resolved-dns-rr.h"
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enum DnssecResult {
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/* These five are returned by dnssec_verify_rrset() */
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DNSSEC_VALIDATED,
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DNSSEC_VALIDATED_WILDCARD, /* Validated via a wildcard RRSIG, further NSEC/NSEC3 checks necessary */
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DNSSEC_INVALID,
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DNSSEC_SIGNATURE_EXPIRED,
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DNSSEC_UNSUPPORTED_ALGORITHM,
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/* These two are added by dnssec_verify_rrset_search() */
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DNSSEC_NO_SIGNATURE,
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DNSSEC_MISSING_KEY,
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/* These two are added by the DnsTransaction logic */
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DNSSEC_UNSIGNED,
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DNSSEC_FAILED_AUXILIARY,
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DNSSEC_NSEC_MISMATCH,
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DNSSEC_INCOMPATIBLE_SERVER,
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_DNSSEC_RESULT_MAX,
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_DNSSEC_RESULT_INVALID = -1
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};
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#define DNSSEC_CANONICAL_HOSTNAME_MAX (DNS_HOSTNAME_MAX + 2)
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/* The longest digest we'll ever generate, of all digest algorithms we support */
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#define DNSSEC_HASH_SIZE_MAX (MAX(20, 32))
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int dnssec_rrsig_match_dnskey(DnsResourceRecord *rrsig, DnsResourceRecord *dnskey, bool revoked_ok);
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int dnssec_key_match_rrsig(const DnsResourceKey *key, DnsResourceRecord *rrsig);
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int dnssec_verify_rrset(DnsAnswer *answer, const DnsResourceKey *key, DnsResourceRecord *rrsig, DnsResourceRecord *dnskey, usec_t realtime, DnssecResult *result);
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int dnssec_verify_rrset_search(DnsAnswer *answer, const DnsResourceKey *key, DnsAnswer *validated_dnskeys, usec_t realtime, DnssecResult *result, DnsResourceRecord **rrsig);
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int dnssec_verify_dnskey(DnsResourceRecord *dnskey, DnsResourceRecord *ds, bool mask_revoke);
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int dnssec_verify_dnskey_search(DnsResourceRecord *dnskey, DnsAnswer *validated_ds);
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int dnssec_has_rrsig(DnsAnswer *a, const DnsResourceKey *key);
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uint16_t dnssec_keytag(DnsResourceRecord *dnskey, bool mask_revoke);
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int dnssec_canonicalize(const char *n, char *buffer, size_t buffer_max);
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int dnssec_nsec3_hash(DnsResourceRecord *nsec3, const char *name, void *ret);
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typedef enum DnssecNsecResult {
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DNSSEC_NSEC_NO_RR, /* No suitable NSEC/NSEC3 RR found */
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DNSSEC_NSEC_CNAME, /* Didn't find what was asked for, but did find CNAME */
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DNSSEC_NSEC_UNSUPPORTED_ALGORITHM,
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DNSSEC_NSEC_NXDOMAIN,
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DNSSEC_NSEC_NODATA,
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DNSSEC_NSEC_FOUND,
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DNSSEC_NSEC_OPTOUT,
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} DnssecNsecResult;
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int dnssec_nsec_test(DnsAnswer *answer, DnsResourceKey *key, DnssecNsecResult *result, bool *authenticated, uint32_t *ttl);
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int dnssec_nsec_test_enclosed(DnsAnswer *answer, uint16_t type, const char *name, const char *zone, bool *authenticated);
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int dnssec_test_positive_wildcard(DnsAnswer *a, const char *name, const char *source, const char *zone, bool *authenticated);
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const char* dnssec_result_to_string(DnssecResult m) _const_;
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DnssecResult dnssec_result_from_string(const char *s) _pure_;
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