add experimental support for verifying hos keys using DNS as described

in draft-ietf-secsh-dns-xx.txt. more information in README.dns.
ok markus@ and henning@

1 files changed, 59 insertions, 0 deletions

diff --git a/usr.bin/ssh/dns.h b/usr.bin/ssh/dns.h
new file mode 100644
index 00000000000..b31a106a403
--- /dev/null
+++ b/usr.bin/ssh/dns.h
@@ -0,0 +1,59 @@
+/*	$OpenBSD: dns.h,v 1.1 2003/05/14 18:16:20 jakob 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * 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.
+ */
+
+
+#include "includes.h"
+
+#ifdef DNS
+#ifndef DNS_H
+#define DNS_H
+
+enum dns_types {
+	DNS_KEY_RESERVED,
+	DNS_KEY_RSA,
+	DNS_KEY_DSA
+};
+
+enum dns_hashes {
+	DNS_HASH_RESERVED,
+	DNS_HASH_SHA1
+};
+
+#define DNS_RDATACLASS_IN	1
+#define DNS_RDATATYPE_SSHFP	44
+
+#define DNS_VERIFY_FAILED	-1
+#define DNS_VERIFY_OK		0
+#define DNS_VERIFY_ERROR	1
+
+int	verify_host_key_dns(const char *, struct sockaddr *, Key *);
+int	export_dns_rr(const char *, Key *, FILE *, int);
+
+#endif /* DNS_H */
+#endif /* DNS */