[openssh-commits] [openssh] 05/09: upstream: simply disable UpdateHostkeys when a certificate

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djm pushed a commit to branch master
in repository openssh.

commit f4f14e023cafee1cd9ebe4bb0db4029e6e1fafac
Author: djm at openbsd.org <djm at openbsd.org>
Date:   Wed Oct 7 02:20:35 2020 +0000

    upstream: simply disable UpdateHostkeys when a certificate
    
    successfully authenticated the host; simpler than the complicated plumbing
    via kex->flags we have now.
    
    ok markus@
    
    OpenBSD-Commit-ID: 80e39644eed75717d563a7f177e8117a0e14f42c
---
 sshconnect.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sshconnect.c b/sshconnect.c
index 31e012df..ba07a5ff 100644
--- a/sshconnect.c
+++ b/sshconnect.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshconnect.c,v 1.335 2020/10/04 09:45:01 djm Exp $ */
+/* $OpenBSD: sshconnect.c,v 1.336 2020/10/07 02:20:35 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo at cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo at cs.hut.fi>, Espoo, Finland
@@ -609,7 +609,12 @@ check_host_cert(const char *host, const struct sshkey *key)
 		    "(null)" : key->cert->signature_type, ssh_err(r));
 		return 0;
 	}
-
+	/* Do not attempt hostkey update if a certificate was successful */
+	if (options.update_hostkeys != 0) {
+		options.update_hostkeys = 0;
+		debug3("%s: certificate host key in use; disabling "
+		    "UpdateHostkeys", __func__);
+	}
 	return 1;
 }
 

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