upstream commit

unit test for hostkeys in ssh-agent

regress/hostkey-agent.sh

@@ -0,0 +1,55 @@
+#	$OpenBSD: hostkey-agent.sh,v 1.1 2015/01/17 18:54:30 djm Exp $
+#	Placed in the Public Domain.
+
+tid="hostkey agent"
+
+# Need full names here since they are used in HostKeyAlgorithms
+HOSTKEY_TYPES="ecdsa-sha2-nistp256 ssh-ed25519 ssh-rsa ssh-dss"
+
+rm -f $OBJ/agent.* $OBJ/ssh_proxy.orig
+
+trace "start agent"
+eval `${SSHAGENT} -s` > /dev/null
+r=$?
+[ $r -ne 0 ] && fatal "could not start ssh-agent: exit code $r"
+
+grep -vi 'hostkey' $OBJ/sshd_proxy > $OBJ/sshd_proxy.orig
+echo "HostKeyAgent $SSH_AUTH_SOCK" >> $OBJ/sshd_proxy.orig
+echo "LogLevel debug3" >> $OBJ/sshd_proxy.orig
+rm $OBJ/known_hosts
+
+trace "load hostkeys"
+for k in $HOSTKEY_TYPES ; do
+	${SSHKEYGEN} -qt $k -f $OBJ/agent.$k -N '' || fatal "ssh-keygen $k"
+	(
+		echo -n 'localhost-with-alias,127.0.0.1,::1 '
+		cat $OBJ/agent.$k.pub
+	) >> $OBJ/known_hosts
+	${SSHADD} $OBJ/agent.$k >/dev/null 2>&1 || \
+		fatal "couldn't load key $OBJ/agent.$k"
+	echo "Hostkey $OBJ/agent.${k}" >> sshd_proxy.orig
+	# Remove private key so the server can't use it.
+	rm $OBJ/agent.$k || fatal "couldn't rm $OBJ/agent.$k"
+done
+
+unset SSH_AUTH_SOCK
+
+for ps in no yes; do
+	cp $OBJ/sshd_proxy.orig $OBJ/sshd_proxy
+	echo "UsePrivilegeSeparation $ps" >> $OBJ/sshd_proxy
+	for k in $HOSTKEY_TYPES ; do
+		verbose "key type $k privsep=$ps"
+		opts="-oHostKeyAlgorithms=$k -F $OBJ/ssh_proxy"
+		SSH_CONNECTION=`${SSH} $opts host 'echo $SSH_CONNECTION'`
+		if [ $? -ne 0 ]; then
+			fail "protocol $p privsep=$ps failed"
+		fi
+		if [ "$SSH_CONNECTION" != "UNKNOWN 65535 UNKNOWN 65535" ]; then
+			fail "bad SSH_CONNECTION key type $k privsep=$ps"
+		fi
+	done
+done
+
+trace "kill agent"
+${SSHAGENT} -k > /dev/null
+