tests: introduced test program to check basic vhost functionality

This checks whether connecting to different virtual hosts
with different authentication methods works.

Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org>

configure.ac

@@ -235,12 +235,14 @@ fi
 
 PKG_CHECK_MODULES([CWRAP], [uid_wrapper, socket_wrapper], have_cwrap=yes, have_cwrap=no)
 PKG_CHECK_MODULES([CWRAP_PAM], [pam_wrapper], have_cwrap_pam=yes, have_cwrap_pam=no)
+PKG_CHECK_MODULES([CWRAP_NSS], [nss_wrapper], have_cwrap_nss=yes, have_cwrap_nss=no)
 
 if test "$have_cwrap" != no;then
 	AC_DEFINE([HAVE_CWRAP], 1, [Enable testing with cwrap])
 fi
 AM_CONDITIONAL(HAVE_CWRAP, test "x$have_cwrap" != xno)
 AM_CONDITIONAL(HAVE_CWRAP_PAM, test "x$have_cwrap_pam" != xno && test "$have_liboath" = yes && test "$pam_enabled" = yes)
+AM_CONDITIONAL(HAVE_CWRAP_ALL, test "x$have_cwrap_nss" != xno && test "x$have_cwrap_pam")
 
 AC_ARG_WITH(radius,
   AS_HELP_STRING([--without-radius], [do not include Radius support]),
@@ -564,6 +566,7 @@ Summary of build options:
   CFlags:               ${CFLAGS}
   CWrap testing:        ${have_cwrap}
   CWrap PAM testing:    ${have_cwrap_pam}
+  CWrap NSS testing:    ${have_cwrap_nss}
   
   PAM auth backend:     ${pam_enabled}
   Radius auth backend:  ${radius_enabled}

tests/Makefile.am

@@ -4,7 +4,7 @@ EXTRA_DIST = certs/ca-key.pem certs/ca.pem common.sh certs/server-cert.pem \
 	certs/server-key.pem data/test1.config data/pam/nss-group.in data/pam/nss-passwd.in \
 	data/pam/users.oath.templ data/test-pam-noauth.config data/test-pam.passwd \
 	data/test1.passwd data/test-user-cert.config certs/user-cert.pem certs/user-key.pem \
-	data/test3.config data/test-iroute.config data/test-pam.config \
+	data/test3.config data/test-iroute.config data/test-pam.config data/test-vhost2.passwd \
 	user-config/test user-config-opt/test data/test-pass-script.config data/test-multi-cookie.config \
 	data/test-stress.config certs/user-cert-wrong.pem connect-script data/test-group.passwd \
 	data/test-group-pass.config certs/user-group-cert.pem certs/user-group-key.pem \
@@ -19,13 +19,13 @@ EXTRA_DIST = certs/ca-key.pem certs/ca.pem common.sh certs/server-cert.pem \
 	certs/user-cert-testuser.pem test-stress data/test-user-config.config user-config/testuser \
 	data/test-sighup-key-change.config data/test-sighup-key-change.config user-config/testipnet \
 	certs/user-cert-testipnet.pem certs/user-cert-invalid.pem certs/server-cert-ca.pem \
-	data/test-san-cert.config certs/user-san-cert.pem \
+	data/test-san-cert.config certs/user-san-cert.pem data/test-vhost3.passwd \
 	certs/server-cert-ed25519.pem certs/server-key-ed25519.pem data/test-ed25519.config \
 	certs/server-cert-rsa-pss.pem certs/server-key-rsa-pss.pem data/test-rsa-pss.config \
 	data/test-otp-cert.config data/test-otp.oath test-otp-cert data/test-otp.passwd \
 	data/test-otp.config data/test-cert-opt-pass.config data/test-gssapi-opt-pass.config \
-	certs/server-key-secp521r1.pem certs/server-cert-secp521r1.pem
-
+	certs/server-key-secp521r1.pem certs/server-cert-secp521r1.pem data/test-vhost-pass-cert.config \
+	data/vhost.hosts
 
 SUBDIRS = docker-ocserv docker-kerberos
 
@@ -50,6 +50,10 @@ dist_check_SCRIPTS += test-iroute test-multi-cookie test-pass-script \
 endif
 
 if HAVE_CWRAP
+if HAVE_CWRAP_ALL
+dist_check_SCRIPTS += test-vhost
+endif
+
 dist_check_SCRIPTS += test-pass test-pass-cert test-cert test-group-pass \
 	test-pass-group-cert test-pass-group-cert-no-pass test-sighup \
 	test-enc-key test-sighup-key-change test-get-cert test-san-cert \

tests/common.sh

@@ -39,7 +39,9 @@ else
 	mkdir -p $SOCKDIR
 	export SOCKET_WRAPPER_DIR=$SOCKDIR
 	export SOCKET_WRAPPER_DEFAULT_IFACE=2
+	export NSS_WRAPPER_HOSTS="${srcdir}/data/vhost.hosts"
 	ADDRESS=127.0.0.$SOCKET_WRAPPER_DEFAULT_IFACE
+	RAW_OPENCONNECT="${OPENCONNECT}"
 	OPENCONNECT="eval LD_PRELOAD=libsocket_wrapper.so ${OPENCONNECT}"
 fi
 
@@ -66,7 +68,7 @@ fail() {
 
 launch_server() {
 	if test -n "${VERBOSE}" && test "${VERBOSE}" -ge 1;then
-	    $SERV $* &
+	    $SERV $* -d 3 &
 	else
 	    $SERV $* >/dev/null 2>&1 &
 	fi
@@ -82,7 +84,7 @@ launch_server() {
 
 launch_sr_server() {
 	if test -n "${VERBOSE}" && test "${VERBOSE}" -ge 1;then
-		LD_PRELOAD=libsocket_wrapper.so:libuid_wrapper.so UID_WRAPPER=1 UID_WRAPPER_ROOT=1 $SERV $* &
+		LD_PRELOAD=libsocket_wrapper.so:libuid_wrapper.so UID_WRAPPER=1 UID_WRAPPER_ROOT=1 $SERV $* -d 3 &
 	else
 		LD_PRELOAD=libsocket_wrapper.so:libuid_wrapper.so UID_WRAPPER=1 UID_WRAPPER_ROOT=1 $SERV $* >/dev/null 2>&1 &
 	fi
@@ -100,9 +102,9 @@ launch_sr_pam_server() {
 	mkdir -p "data/$PAMDIR/"
 	test -f "${srcdir}/data/$PAMDIR/users.oath.templ" && cp "${srcdir}/data/$PAMDIR/users.oath.templ" "data/$PAMDIR/users.oath"
 	test -f "${srcdir}/data/$PAMDIR/passdb.templ" && cp "${srcdir}/data/$PAMDIR/passdb.templ" "data/$PAMDIR/passdb"
-
-	export NSS_WRAPPER_PASSWD=./data/pam/nss-passwd
-	export NSS_WRAPPER_GROUP=./data/pam/nss-group
+	export PAM_WRAPPER_SERVICE_DIR=pam.$$.tmp
+	export NSS_WRAPPER_PASSWD=${srcdir}/data/pam/nss-passwd
+	export NSS_WRAPPER_GROUP=${srcdir}/data/pam/nss-group
 	if test -n "${VERBOSE}" && test "${VERBOSE}" -ge 1;then
 		LD_PRELOAD=libnss_wrapper.so:libpam_wrapper.so:libsocket_wrapper.so:libuid_wrapper.so PAM_WRAPPER_SERVICE_DIR="data/$PAMDIR" PAM_WRAPPER=1  UID_WRAPPER=1 UID_WRAPPER_ROOT=1 $SERV $* &
 	else
@@ -122,7 +124,7 @@ launch_sr_pam_server() {
 
 launch_simple_sr_server() {
 	if test -n "${VERBOSE}" && test "${VERBOSE}" -ge 1;then
-		LD_PRELOAD=libsocket_wrapper.so:libuid_wrapper.so UID_WRAPPER=1 UID_WRAPPER_ROOT=1 $SERV $* &
+		LD_PRELOAD=libsocket_wrapper.so:libuid_wrapper.so UID_WRAPPER=1 UID_WRAPPER_ROOT=1 $SERV $* -d 3 &
 	else
 		LD_PRELOAD=libsocket_wrapper.so:libuid_wrapper.so UID_WRAPPER=1 UID_WRAPPER_ROOT=1 $SERV $* >/dev/null 2>&1 &
 	fi

tests/data/test-vhost-pass-cert.config

@@ -0,0 +1,216 @@
+# User authentication method. Could be set multiple times and in that case
+# all should succeed.
+# Options: certificate, pam. 
+#enable-auth = "certificate"
+auth = "plain[passwd=@SRCDIR@/data/test1.passwd]"
+#auth = "pam"
+
+# A banner to be displayed on clients
+#banner = "Welcome"
+
+# Use listen-host to limit to specific IPs or to the IPs of a provided hostname.
+#listen-host = [IP|HOSTNAME]
+
+use-dbus = no
+
+# Limit the number of clients. Unset or set to zero for unlimited.
+#max-clients = 1024
+max-clients = 16
+
+# Limit the number of client connections to one every X milliseconds 
+# (X is the provided value). Set to zero for no limit.
+#rate-limit-ms = 100
+
+max-ban-score = 0
+
+# Limit the number of identical clients (i.e., users connecting multiple times)
+# Unset or set to zero for unlimited.
+max-same-clients = 2
+
+# TCP and UDP port number
+tcp-port = 443
+udp-port = 443
+
+# Keepalive in seconds
+keepalive = 32400
+
+# Dead peer detection in seconds
+dpd = 440
+
+# MTU discovery (DPD must be enabled)
+try-mtu-discovery = false
+
+# The key and the certificates of the server
+# The key may be a file, or any URL supported by GnuTLS (e.g., 
+# tpmkey:uuid=xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx;storage=user
+# or pkcs11:object=my-vpn-key;object-type=private)
+#
+# There may be multiple certificate and key pairs and each key
+# should correspond to the preceding certificate.
+server-cert = @SRCDIR@/certs/server-cert.pem
+server-key = @SRCDIR@/certs/server-key.pem
+
+# Diffie-Hellman parameters. Only needed if you require support
+# for the DHE ciphersuites (by default this server supports ECDHE).
+# Can be generated using:
+# certtool --generate-dh-params --outfile /path/to/dh.pem
+#dh-params = /path/to/dh.pem
+
+# If you have a certificate from a CA that provides an OCSP
+# service you may provide a fresh OCSP status response within
+# the TLS handshake. That will prevent the client from connecting
+# independently on the OCSP server.
+# You can update this response periodically using:
+# ocsptool --ask --load-cert=your_cert --load-issuer=your_ca --outfile response
+# Make sure that you replace the following file in an atomic way.
+#ocsp-response = /path/to/ocsp.der
+
+# In case PKCS #11 or TPM keys are used the PINs should be available
+# in files. The srk-pin-file is applicable to TPM keys only (It's the storage
+# root key).
+#pin-file = /path/to/pin.txt
+#srk-pin-file = /path/to/srkpin.txt
+
+# The Certificate Authority that will be used
+# to verify clients if certificate authentication
+# is set.
+ca-cert = @SRCDIR@/certs/ca.pem
+
+# The object identifier that will be used to read the user ID in the client certificate.
+# The object identifier should be part of the certificate's DN
+# Useful OIDs are: 
+#  CN = 2.5.4.3, UID = 0.9.2342.19200300.100.1.1
+cert-user-oid = 0.9.2342.19200300.100.1.1
+
+# The object identifier that will be used to read the user group in the client 
+# certificate. The object identifier should be part of the certificate's DN
+# Useful OIDs are: 
+#  OU (organizational unit) = 2.5.4.11 
+#cert-group-oid = 2.5.4.11
+
+# A revocation list of ca-cert is set
+#crl = /path/to/crl.pem
+
+# GnuTLS priority string
+tls-priorities = "PERFORMANCE:%SERVER_PRECEDENCE:%COMPAT"
+
+# To enforce perfect forward secrecy (PFS) on the main channel.
+#tls-priorities = "NORMAL:%SERVER_PRECEDENCE:%COMPAT:-RSA"
+
+# The time (in seconds) that a client is allowed to stay connected prior
+# to authentication
+auth-timeout = 40
+
+# The time (in seconds) that a client is not allowed to reconnect after 
+# a failed authentication attempt.
+#min-reauth-time = 2
+
+# Cookie validity time (in seconds)
+# Once a client is authenticated he's provided a cookie with
+# which he can reconnect. This option sets the maximum lifetime
+# of that cookie.
+cookie-validity = 172800
+
+# Script to call when a client connects and obtains an IP
+# Parameters are passed on the environment.
+# REASON, USERNAME, GROUPNAME, HOSTNAME (the hostname selected by client), 
+# DEVICE, IP_REAL (the real IP of the client), IP_LOCAL (the local IP
+# in the P-t-P connection), IP_REMOTE (the VPN IP of the client). REASON
+# may be "connect" or "disconnect".
+#connect-script = /usr/bin/myscript
+#disconnect-script = /usr/bin/myscript
+
+# UTMP
+#use-utmp = true
+
+# PID file
+pid-file = ocserv-vhost.pid
+
+# The default server directory. Does not require any devices present.
+#chroot-dir = /path/to/chroot
+
+# socket file used for IPC, will be appended with .PID
+# It must be accessible within the chroot environment (if any)
+socket-file = ocserv-socket-vhost
+
+# The user the worker processes will be run as. It should be
+# unique (no other services run as this user).
+run-as-user = @USERNAME@
+run-as-group = @GROUP@
+
+# Network settings
+
+device = vpns
+
+# The default domain to be advertised
+default-domain = example.com
+
+ipv4-network = 192.168.1.0
+ipv4-netmask = 255.255.255.0
+# Use the keywork local to advertize the local P-t-P address as DNS server
+ipv4-dns = 192.168.1.1
+
+# The NBNS server (if any)
+#ipv4-nbns = 192.168.2.3
+
+#ipv6-address = 
+#ipv6-mask = 
+#ipv6-dns = 
+
+# Prior to leasing any IP from the pool ping it to verify that
+# it is not in use by another (unrelated to this server) host.
+ping-leases = false
+
+# Leave empty to assign the default MTU of the device
+# mtu = 
+
+route = 192.168.1.0/255.255.255.0
+#route = 192.168.5.0/255.255.255.0
+
+#
+# The following options are for (experimental) AnyConnect client 
+# compatibility. They are only available if the server is built 
+# with --enable-anyconnect
+#
+
+# Client profile xml. A sample file exists in doc/profile.xml.
+# This file must be accessible from inside the worker's chroot. 
+# The profile is ignored by the openconnect client.
+#user-profile = profile.xml
+
+# Unless set to false it is required for clients to present their
+# certificate even if they are authenticating via a previously granted
+# cookie. Legacy CISCO clients do not do that, and thus this option
+# should be set for them.
+#cisco-client-compat = true
+
+#config-per-user = @SRCDIR@/user-config-opt/
+
+
+# An example virtual host with different authentication methods serviced
+# by this server.
+
+[vhost: cert.example.com	 ]
+auth = "certificate"
+
+ca-cert = @SRCDIR@/certs/ca.pem
+
+server-cert = @SRCDIR@/certs/server-cert-secp521r1.pem
+server-key = @SRCDIR@/certs/server-key-secp521r1.pem
+
+ipv4-network = 192.168.2.0
+ipv4-netmask = 255.255.255.0
+
+cert-user-oid = 0.9.2342.19200300.100.1.1
+
+[vhost:pass2.example.com]
+auth = plain[passwd=@SRCDIR@/data/test-vhost2.passwd]
+
+ca-cert = @SRCDIR@/certs/ca.pem
+
+server-cert = @SRCDIR@/certs/server-cert-secp521r1.pem
+server-key = @SRCDIR@/certs/server-key-secp521r1.pem
+
+ipv4-network = 192.168.3.0
+ipv4-netmask = 255.255.255.0
+

tests/data/test-vhost2.passwd

@@ -0,0 +1 @@
+vhost:*:$5$CgIdsjkTgpEtnj6c$qxVF2qpiov/07yM3536PIPiUYAmMiDCvH5tXho9IzL8

tests/data/test-vhost3.passwd

@@ -0,0 +1 @@
+vhost2:*:$5$uuGCR6z8OIm4V6ye$pyygjTO1VVmzCfmkgoO1f6djioe1JZZ8hPysXUFI2U/

tests/data/vhost.hosts

@@ -0,0 +1,7 @@
+127.0.0.2 pass2.example.com
+127.0.0.2 default.example.com
+127.0.0.2 cert.example.com
+127.0.0.2 pass3.example.com
+fd00::5357:5f02 pass2.example.com
+fd00::5357:5f02 default.example.com
+fd00::5357:5f02 cert.example.com

tests/test-vhost

@@ -0,0 +1,163 @@
+#!/bin/sh
+#
+# Copyright (C) 2018 Nikos Mavrogiannopoulos
+#
+# This file is part of ocserv.
+#
+# ocserv is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 2 of the License, or (at
+# your option) any later version.
+#
+# ocserv is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>
+
+PKG_CONFIG="${PKG_CONFIG:-/usr/bin/pkg-config}"
+SERV="${SERV:-../src/ocserv}"
+srcdir=${srcdir:-.}
+PORT=443
+NO_NEED_ROOT=1
+TMPFILE=pid.$$.tmp
+
+VERBOSE=1
+
+. `dirname $0`/common.sh
+
+connect()
+{
+vhost=$1:$PORT
+opts=$2
+pass=$3
+certhash=$4
+COOKIE=''
+
+echo $pass | LD_PRELOAD="libnss_wrapper.so:libsocket_wrapper.so" ${RAW_OPENCONNECT} ${vhost} -q $opts --servercert=${certhash} --authenticate --passwd-on-stdin >$TMPFILE 2>&1
+grep COOKIE= $TMPFILE >/dev/null 2>&1
+if test $? != 0;then
+	cat $TMPFILE
+	return 1
+fi
+
+return 0
+}
+
+echo "Testing vhosts backend with two username-password hosts and a certificate one... "
+
+${OPENCONNECT} --version|grep 'Using OpenSSL' >/dev/null 2>&1
+if test $? = 0;then
+	# openconnect doesn't support server_name in these cases
+	${PKG_CONFIG} --atleast-version=1.0.2 openssl
+	test $? != 0 && exit 77
+fi
+
+update_config test-vhost-pass-cert.config
+launch_simple_sr_server -p $TMPFILE -d 1 -f -c "${CONFIG}"
+PID=$!
+wait_server $PID
+
+echo -n "Connecting to default host to obtain cookie (user without certificate)... "
+connect "default.example.com" "-u test" "test" "d66b507ae074d03b02eafca40d35f87dd81049d3"
+if test $? != 0;then
+	fail $PID "Failed to connect with user without certificate!"
+fi
+echo ok
+
+echo -n "Connecting to pass2 host to obtain cookie with username from default... "
+connect "pass2.example.com" "-u test" "test" "sha1:8e253ef2a87dd9188fe444702f2fe349d30af816"
+if test $? = 0;then
+	fail $PID "Connected to wrong host!"
+fi
+echo ok
+
+echo -n "Connecting to pass2 host to obtain cookie with username... "
+connect "pass2.example.com" "-u vhost" "vhost" "sha1:8e253ef2a87dd9188fe444702f2fe349d30af816"
+if test $? != 0;then
+	fail $PID "Could not connect to pass2!"
+fi
+echo ok
+
+echo -n "Connecting to certificate host to obtain cookie with username from default... "
+connect "cert.example.com" "-u test" "test" "sha1:8e253ef2a87dd9188fe444702f2fe349d30af816"
+if test $? = 0;then
+	fail $PID "Connected to wrong host!"
+fi
+echo ok
+
+echo -n "Connecting to certificate host to obtain cookie (with certificate)... "
+connect "cert.example.com" "-u test --sslkey ./certs/user-key.pem -c ./certs/user-cert.pem" "" "sha1:8e253ef2a87dd9188fe444702f2fe349d30af816"
+if test $? != 0;then
+	fail $PID "Failed to connect with certificate!"
+fi
+echo ok
+
+echo -n "Connecting to certificate host to obtain cookie (with incorrect certificate)... "
+connect "cert.example.com" "-u test --sslkey ./certs/user-key.pem -c ./certs/user-cert-wrong.pem" "" "sha1:8e253ef2a87dd9188fe444702f2fe349d30af816"
+if test $? = 0;then
+	fail $PID "Should not have connected with wrong certificate!"
+fi
+echo ok
+
+echo -n "Connecting to pass2 host to obtain cookie (with certificate)... "
+connect "pass2.example.com" "-u vhost --sslkey ./certs/user-key.pem -c ./certs/user-cert.pem" "" "sha1:8e253ef2a87dd9188fe444702f2fe349d30af816"
+if test $? = 0;then
+	fail $PID "Connected to wrong host with certificate!"
+fi
+echo ok
+
+echo -n "Connecting to default host to obtain cookie (with certificate)... "
+connect "default.example.com" "-u test --sslkey ./certs/user-key.pem -c ./certs/user-cert.pem" "" "d66b507ae074d03b02eafca40d35f87dd81049d3"
+if test $? = 0;then
+	fail $PID "Connected to wrong host with certificate!"
+fi
+echo ok
+
+echo "Adding new vhost and reloading..."
+
+cat >>${CONFIG} <<_EOF
+[vhost:pass3.example.com]
+auth = plain[passwd=${srcdir}/data/test-vhost3.passwd]
+
+ca-cert = ${srcdir}/certs/ca.pem
+
+server-cert = ${srcdir}/certs/server-cert-secp521r1.pem
+server-key = ${srcdir}/certs/server-key-secp521r1.pem
+
+ipv4-network = 192.168.67.0
+ipv4-netmask = 255.255.255.0
+_EOF
+
+kill -HUP $PID
+sleep 5
+
+echo -n "Sanity check to default host..."
+connect "default.example.com" "-u test" "test" "d66b507ae074d03b02eafca40d35f87dd81049d3"
+if test $? != 0;then
+	fail $PID "Failed to connect with user without certificate!"
+fi
+echo ok
+
+echo -n "Sanity check to cert host..."
+connect "cert.example.com" "-u test --sslkey ./certs/user-key.pem -c ./certs/user-cert.pem" "" "sha1:8e253ef2a87dd9188fe444702f2fe349d30af816"
+if test $? != 0;then
+	fail $PID "Failed to connect with certificate!"
+fi
+echo ok
+
+echo -n "Connecting to pass3 host to obtain cookie with username... "
+connect "pass3.example.com" "-u vhost2" "vhost2" "sha1:8e253ef2a87dd9188fe444702f2fe349d30af816"
+if test $? != 0;then
+	fail $PID "Could not connect to pass3!"
+fi
+echo ok
+
+kill $PID
+wait
+
+rm -f $TMPFILE
+
+exit 0