crypto/openssh/dns.h

   1 /* $OpenBSD: dns.h,v 1.19 2021/07/19 03:13:28 dtucker Exp $ */
   2
   3 /*
   4  * Copyright (c) 2003 Wesley Griffin. All rights reserved.
   5  * Copyright (c) 2003 Jakob Schlyter. All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifndef DNS_H
  29 #define DNS_H
  30
  31 enum sshfp_types {
  32         SSHFP_KEY_RESERVED = 0,
  33         SSHFP_KEY_RSA = 1,
  34         SSHFP_KEY_DSA = 2,
  35         SSHFP_KEY_ECDSA = 3,
  36         SSHFP_KEY_ED25519 = 4,
  37         SSHFP_KEY_XMSS = 5
  38 };
  39
  40 enum sshfp_hashes {
  41         SSHFP_HASH_RESERVED = 0,
  42         SSHFP_HASH_SHA1 = 1,
  43         SSHFP_HASH_SHA256 = 2,
  44         SSHFP_HASH_MAX = 3
  45 };
  46
  47 #define DNS_RDATACLASS_IN       1
  48 #define DNS_RDATATYPE_SSHFP     44
  49
  50 #define DNS_VERIFY_FOUND        0x00000001
  51 #define DNS_VERIFY_MATCH        0x00000002
  52 #define DNS_VERIFY_SECURE       0x00000004
  53 #define DNS_VERIFY_FAILED       0x00000008
  54
  55 int     verify_host_key_dns(const char *, struct sockaddr *,
  56     struct sshkey *, int *);
  57 int     export_dns_rr(const char *, struct sshkey *, FILE *, int);
  58
  59 #endif /* DNS_H */