Adding upstream version 1:7.9p1.upstream/1%7.9p1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 321 insertions, 0 deletions

diff --git a/regress/cert-hostkey.sh b/regress/cert-hostkey.sh
new file mode 100644
index 0000000..d2ecd31
--- /dev/null
+++ b/regress/cert-hostkey.sh
@@ -0,0 +1,321 @@
+#	$OpenBSD: cert-hostkey.sh,v 1.16 2018/07/03 11:43:49 djm Exp $
+#	Placed in the Public Domain.
+
+tid="certified host keys"
+
+rm -f $OBJ/known_hosts-cert* $OBJ/host_ca_key* $OBJ/host_revoked_*
+rm -f $OBJ/cert_host_key* $OBJ/host_krl_*
+
+# Allow all hostkey/pubkey types, prefer certs for the client
+types=""
+for i in `$SSH -Q key`; do
+	if [ -z "$types" ]; then
+		types="$i"
+		continue
+	fi
+	case "$i" in
+	# Special treatment for RSA keys.
+	*rsa*cert*)
+		types="rsa-sha2-256-cert-v01@openssh.com,$i,$types"
+		types="rsa-sha2-512-cert-v01@openssh.com,$types";;
+	*rsa*)
+		types="$types,rsa-sha2-512,rsa-sha2-256,$i";;
+	# Prefer certificate to plain keys.
+	*cert*)	types="$i,$types";;
+	*)	types="$types,$i";;
+	esac
+done
+(
+	echo "HostKeyAlgorithms ${types}"
+	echo "PubkeyAcceptedKeyTypes *"
+) >> $OBJ/ssh_proxy
+cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak
+(
+	echo "HostKeyAlgorithms *"
+	echo "PubkeyAcceptedKeyTypes *"
+) >> $OBJ/sshd_proxy_bak
+
+HOSTS='localhost-with-alias,127.0.0.1,::1'
+
+kh_ca() {
+	for k in "$@" ; do
+		printf "@cert-authority $HOSTS "
+		cat $OBJ/$k || fatal "couldn't cat $k"
+	done
+}
+kh_revoke() {
+	for k in "$@" ; do
+		printf "@revoked * "
+		cat $OBJ/$k || fatal "couldn't cat $k"
+	done
+}
+
+# Create a CA key and add it to known hosts. Ed25519 chosen for speed.
+# RSA for testing RSA/SHA2 signatures.
+${SSHKEYGEN} -q -N '' -t ed25519  -f $OBJ/host_ca_key ||\
+	fail "ssh-keygen of host_ca_key failed"
+${SSHKEYGEN} -q -N '' -t rsa  -f $OBJ/host_ca_key2 ||\
+	fail "ssh-keygen of host_ca_key failed"
+
+kh_ca host_ca_key.pub host_ca_key2.pub > $OBJ/known_hosts-cert.orig
+cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+
+# Plain text revocation files
+touch $OBJ/host_revoked_empty
+touch $OBJ/host_revoked_plain
+touch $OBJ/host_revoked_cert
+cat $OBJ/host_ca_key.pub $OBJ/host_ca_key2.pub > $OBJ/host_revoked_ca
+
+PLAIN_TYPES=`$SSH -Q key-plain | sed 's/^ssh-dss/ssh-dsa/g;s/^ssh-//'`
+
+if echo "$PLAIN_TYPES" | grep '^rsa$' >/dev/null 2>&1 ; then
+	PLAIN_TYPES="$PLAIN_TYPES rsa-sha2-256 rsa-sha2-512"
+fi
+
+# Prepare certificate, plain key and CA KRLs
+${SSHKEYGEN} -kf $OBJ/host_krl_empty || fatal "KRL init failed"
+${SSHKEYGEN} -kf $OBJ/host_krl_plain || fatal "KRL init failed"
+${SSHKEYGEN} -kf $OBJ/host_krl_cert || fatal "KRL init failed"
+${SSHKEYGEN} -kf $OBJ/host_krl_ca $OBJ/host_ca_key.pub $OBJ/host_ca_key2.pub \
+	|| fatal "KRL init failed"
+
+# Generate and sign host keys
+serial=1
+for ktype in $PLAIN_TYPES ; do
+	verbose "$tid: sign host ${ktype} cert"
+	# Generate and sign a host key
+	${SSHKEYGEN} -q -N '' -t ${ktype} \
+	    -f $OBJ/cert_host_key_${ktype} || \
+		fatal "ssh-keygen of cert_host_key_${ktype} failed"
+	${SSHKEYGEN} -ukf $OBJ/host_krl_plain \
+	    $OBJ/cert_host_key_${ktype}.pub || fatal "KRL update failed"
+	cat $OBJ/cert_host_key_${ktype}.pub >> $OBJ/host_revoked_plain
+	case $ktype in
+	rsa-sha2-*)	tflag="-t $ktype"; ca="$OBJ/host_ca_key2" ;;
+	*)		tflag=""; ca="$OBJ/host_ca_key" ;;
+	esac
+	${SSHKEYGEN} -h -q -s $ca -z $serial $tflag \
+	    -I "regress host key for $USER" \
+	    -n $HOSTS $OBJ/cert_host_key_${ktype} ||
+		fatal "couldn't sign cert_host_key_${ktype}"
+	${SSHKEYGEN} -ukf $OBJ/host_krl_cert \
+	    $OBJ/cert_host_key_${ktype}-cert.pub || \
+		fatal "KRL update failed"
+	cat $OBJ/cert_host_key_${ktype}-cert.pub >> $OBJ/host_revoked_cert
+	serial=`expr $serial + 1`
+done
+
+attempt_connect() {
+	_ident="$1"
+	_expect_success="$2"
+	shift; shift
+	verbose "$tid: $_ident expect success $_expect_success"
+	cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+	${SSH} -oUserKnownHostsFile=$OBJ/known_hosts-cert \
+	    -oGlobalKnownHostsFile=$OBJ/known_hosts-cert \
+	    "$@" -F $OBJ/ssh_proxy somehost true
+	_r=$?
+	if [ "x$_expect_success" = "xyes" ] ; then
+		if [ $_r -ne 0 ]; then
+			fail "ssh cert connect $_ident failed"
+		fi
+	else
+		if [ $_r -eq 0 ]; then
+			fail "ssh cert connect $_ident succeeded unexpectedly"
+		fi
+	fi
+}
+
+# Basic connect and revocation tests.
+for privsep in yes no ; do
+	for ktype in $PLAIN_TYPES ; do
+		verbose "$tid: host ${ktype} cert connect privsep $privsep"
+		(
+			cat $OBJ/sshd_proxy_bak
+			echo HostKey $OBJ/cert_host_key_${ktype}
+			echo HostCertificate $OBJ/cert_host_key_${ktype}-cert.pub
+			echo UsePrivilegeSeparation $privsep
+		) > $OBJ/sshd_proxy
+
+		#               test name                         expect success
+		attempt_connect "$ktype basic connect"			"yes"
+		attempt_connect "$ktype empty KRL"			"yes" \
+		    -oRevokedHostKeys=$OBJ/host_krl_empty
+		attempt_connect "$ktype KRL w/ plain key revoked"	"no" \
+		    -oRevokedHostKeys=$OBJ/host_krl_plain
+		attempt_connect "$ktype KRL w/ cert revoked"		"no" \
+		    -oRevokedHostKeys=$OBJ/host_krl_cert
+		attempt_connect "$ktype KRL w/ CA revoked"		"no" \
+		    -oRevokedHostKeys=$OBJ/host_krl_ca
+		attempt_connect "$ktype empty plaintext revocation"	"yes" \
+		    -oRevokedHostKeys=$OBJ/host_revoked_empty
+		attempt_connect "$ktype plain key plaintext revocation"	"no" \
+		    -oRevokedHostKeys=$OBJ/host_revoked_plain
+		attempt_connect "$ktype cert plaintext revocation"	"no" \
+		    -oRevokedHostKeys=$OBJ/host_revoked_cert
+		attempt_connect "$ktype CA plaintext revocation"	"no" \
+		    -oRevokedHostKeys=$OBJ/host_revoked_ca
+	done
+done
+
+# Revoked certificates with key present
+kh_ca host_ca_key.pub host_ca_key2.pub > $OBJ/known_hosts-cert.orig
+for ktype in $PLAIN_TYPES ; do
+	test -f "$OBJ/cert_host_key_${ktype}.pub" || fatal "no pubkey"
+	kh_revoke cert_host_key_${ktype}.pub >> $OBJ/known_hosts-cert.orig
+done
+cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+for privsep in yes no ; do
+	for ktype in $PLAIN_TYPES ; do
+		verbose "$tid: host ${ktype} revoked cert privsep $privsep"
+		(
+			cat $OBJ/sshd_proxy_bak
+			echo HostKey $OBJ/cert_host_key_${ktype}
+			echo HostCertificate $OBJ/cert_host_key_${ktype}-cert.pub
+			echo UsePrivilegeSeparation $privsep
+		) > $OBJ/sshd_proxy
+
+		cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+		${SSH} -oUserKnownHostsFile=$OBJ/known_hosts-cert \
+		    -oGlobalKnownHostsFile=$OBJ/known_hosts-cert \
+			-F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
+		if [ $? -eq 0 ]; then
+			fail "ssh cert connect succeeded unexpectedly"
+		fi
+	done
+done
+
+# Revoked CA
+kh_ca host_ca_key.pub host_ca_key2.pub > $OBJ/known_hosts-cert.orig
+kh_revoke host_ca_key.pub host_ca_key2.pub >> $OBJ/known_hosts-cert.orig
+cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+for ktype in $PLAIN_TYPES ; do
+	verbose "$tid: host ${ktype} revoked cert"
+	(
+		cat $OBJ/sshd_proxy_bak
+		echo HostKey $OBJ/cert_host_key_${ktype}
+		echo HostCertificate $OBJ/cert_host_key_${ktype}-cert.pub
+	) > $OBJ/sshd_proxy
+	cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+	${SSH} -oUserKnownHostsFile=$OBJ/known_hosts-cert \
+	    -oGlobalKnownHostsFile=$OBJ/known_hosts-cert \
+		-F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
+	if [ $? -eq 0 ]; then
+		fail "ssh cert connect succeeded unexpectedly"
+	fi
+done
+
+# Create a CA key and add it to known hosts
+kh_ca host_ca_key.pub host_ca_key2.pub > $OBJ/known_hosts-cert.orig
+cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+
+test_one() {
+	ident=$1
+	result=$2
+	sign_opts=$3
+
+	for kt in rsa ed25519 ; do
+		case $ktype in
+		rsa-sha2-*)	tflag="-t $ktype"; ca="$OBJ/host_ca_key2" ;;
+		*)		tflag=""; ca="$OBJ/host_ca_key" ;;
+		esac
+		${SSHKEYGEN} -q -s $ca $tflag -I "regress host key for $USER" \
+		    $sign_opts $OBJ/cert_host_key_${kt} ||
+			fatal "couldn't sign cert_host_key_${kt}"
+		(
+			cat $OBJ/sshd_proxy_bak
+			echo HostKey $OBJ/cert_host_key_${kt}
+			echo HostCertificate $OBJ/cert_host_key_${kt}-cert.pub
+		) > $OBJ/sshd_proxy
+
+		cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+		${SSH} -oUserKnownHostsFile=$OBJ/known_hosts-cert \
+		    -oGlobalKnownHostsFile=$OBJ/known_hosts-cert \
+		    -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
+		rc=$?
+		if [ "x$result" = "xsuccess" ] ; then
+			if [ $rc -ne 0 ]; then
+				fail "ssh cert connect $ident failed unexpectedly"
+			fi
+		else
+			if [ $rc -eq 0 ]; then
+				fail "ssh cert connect $ident succeeded unexpectedly"
+			fi
+		fi
+	done
+}
+
+test_one "user-certificate"	failure "-n $HOSTS"
+test_one "empty principals"	success "-h"
+test_one "wrong principals"	failure "-h -n foo"
+test_one "cert not yet valid"	failure "-h -V20200101:20300101"
+test_one "cert expired"		failure "-h -V19800101:19900101"
+test_one "cert valid interval"	success "-h -V-1w:+2w"
+test_one "cert has constraints"	failure "-h -Oforce-command=false"
+
+# Check downgrade of cert to raw key when no CA found
+for ktype in $PLAIN_TYPES ; do
+	rm -f $OBJ/known_hosts-cert $OBJ/cert_host_key*
+	verbose "$tid: host ${ktype} ${v} cert downgrade to raw key"
+	# Generate and sign a host key
+	${SSHKEYGEN} -q -N '' -t ${ktype} -f $OBJ/cert_host_key_${ktype} || \
+		fail "ssh-keygen of cert_host_key_${ktype} failed"
+	case $ktype in
+	rsa-sha2-*)	tflag="-t $ktype"; ca="$OBJ/host_ca_key2" ;;
+	*)		tflag=""; ca="$OBJ/host_ca_key" ;;
+	esac
+	${SSHKEYGEN} -h -q $tflag -s $ca $tflag \
+	    -I "regress host key for $USER" \
+	    -n $HOSTS $OBJ/cert_host_key_${ktype} ||
+		fatal "couldn't sign cert_host_key_${ktype}"
+	(
+		printf "$HOSTS "
+		cat $OBJ/cert_host_key_${ktype}.pub
+	) > $OBJ/known_hosts-cert
+	(
+		cat $OBJ/sshd_proxy_bak
+		echo HostKey $OBJ/cert_host_key_${ktype}
+		echo HostCertificate $OBJ/cert_host_key_${ktype}-cert.pub
+	) > $OBJ/sshd_proxy
+
+	${SSH} -oUserKnownHostsFile=$OBJ/known_hosts-cert \
+	    -oGlobalKnownHostsFile=$OBJ/known_hosts-cert \
+		-F $OBJ/ssh_proxy somehost true
+	if [ $? -ne 0 ]; then
+		fail "ssh cert connect failed"
+	fi
+done
+
+# Wrong certificate
+kh_ca host_ca_key.pub host_ca_key2.pub > $OBJ/known_hosts-cert.orig
+cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+for kt in $PLAIN_TYPES ; do
+	verbose "$tid: host ${kt} connect wrong cert"
+	rm -f $OBJ/cert_host_key*
+	# Self-sign key
+	${SSHKEYGEN} -q -N '' -t ${kt} -f $OBJ/cert_host_key_${kt} || \
+		fail "ssh-keygen of cert_host_key_${kt} failed"
+	case $kt in
+	rsa-sha2-*)	tflag="-t $kt" ;;
+	*)		tflag="" ;;
+	esac
+	${SSHKEYGEN} $tflag -h -q -s $OBJ/cert_host_key_${kt} \
+	    -I "regress host key for $USER" \
+	    -n $HOSTS $OBJ/cert_host_key_${kt} ||
+		fatal "couldn't sign cert_host_key_${kt}"
+	(
+		cat $OBJ/sshd_proxy_bak
+		echo HostKey $OBJ/cert_host_key_${kt}
+		echo HostCertificate $OBJ/cert_host_key_${kt}-cert.pub
+	) > $OBJ/sshd_proxy
+
+	cp $OBJ/known_hosts-cert.orig $OBJ/known_hosts-cert
+	${SSH} -oUserKnownHostsFile=$OBJ/known_hosts-cert \
+	    -oGlobalKnownHostsFile=$OBJ/known_hosts-cert \
+		-F $OBJ/ssh_proxy -q somehost true >/dev/null 2>&1
+	if [ $? -eq 0 ]; then
+		fail "ssh cert connect $ident succeeded unexpectedly"
+	fi
+done
+
+rm -f $OBJ/known_hosts-cert* $OBJ/host_ca_key* $OBJ/cert_host_key*