openssh/dns.h
djm@openbsd.org aea59a0d9f upstream commit
Revert commitid: gJtIN6rRTS3CHy9b.

-------------
identify the case where SSHFP records are missing but other DNS RR
types are present and display a more useful error message for this
case; patch by Thordur Bjornsson; bz#2501; ok dtucker@
-------------

This caused unexpected failures when VerifyHostKeyDNS=yes, SSHFP results
are missing but the user already has the key in known_hosts

Spotted by dtucker@

Upstream-ID: 97e31742fddaf72046f6ffef091ec0d823299920
2017-09-14 14:33:06 +10:00

58 lines
2.0 KiB
C

/* $OpenBSD: dns.h,v 1.17 2017/09/14 04:32:21 djm Exp $ */
/*
* Copyright (c) 2003 Wesley Griffin. All rights reserved.
* Copyright (c) 2003 Jakob Schlyter. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DNS_H
#define DNS_H
enum sshfp_types {
SSHFP_KEY_RESERVED = 0,
SSHFP_KEY_RSA = 1,
SSHFP_KEY_DSA = 2,
SSHFP_KEY_ECDSA = 3,
SSHFP_KEY_ED25519 = 4
};
enum sshfp_hashes {
SSHFP_HASH_RESERVED = 0,
SSHFP_HASH_SHA1 = 1,
SSHFP_HASH_SHA256 = 2,
SSHFP_HASH_MAX = 3
};
#define DNS_RDATACLASS_IN 1
#define DNS_RDATATYPE_SSHFP 44
#define DNS_VERIFY_FOUND 0x00000001
#define DNS_VERIFY_MATCH 0x00000002
#define DNS_VERIFY_SECURE 0x00000004
int verify_host_key_dns(const char *, struct sockaddr *,
struct sshkey *, int *);
int export_dns_rr(const char *, struct sshkey *, FILE *, int);
#endif /* DNS_H */