tests: check whether the firewall rules have been applied with restrict-user-to-routes

tests/Makefile.am

@@ -21,7 +21,7 @@ dist_check_SCRIPTS = test-iroute test-pass-script \
 	radius-test test-gssapi kerberos-test pam-test test-ban \
 	test-cookie-invalidation radius-test-config proxyproto-test \
 	proxyproto-unix-test pam-noauth-test otp-test test-user-config \
-	test-cookie-rotation
+	test-cookie-rotation firewall-test
 
 if HAVE_CWRAP
 dist_check_SCRIPTS += test-pass test-pass-cert test-cert test-group-pass \

tests/docker-common.sh

@@ -131,8 +131,8 @@ if test ! -f $DOCKER_DIR/Dockerfile;then
 	exit 77
 fi
 
-rm -f $DOCKER_DIR/ocserv $DOCKER_DIR/ocpasswd $DOCKER_DIR/occtl
-cp ../src/ocserv ../src/ocpasswd/ocpasswd ../src/occtl/occtl $DOCKER_DIR/
+rm -f $DOCKER_DIR/ocserv $DOCKER_DIR/ocpasswd $DOCKER_DIR/occtl $DOCKER_DIR/ocserv-fw
+cp ../src/ocserv ../src/ocserv-fw ../src/ocpasswd/ocpasswd ../src/occtl/occtl $DOCKER_DIR/
 
 echo "Creating image $IMAGE"
 $DOCKER build -t $IMAGE $DOCKER_DIR/

tests/docker-ocserv/Dockerfile-fedora-fw

@@ -0,0 +1,32 @@
+FROM fedora:23
+
+RUN yum install -y gnutls gnutls-utils protobuf-c iproute pcllib http-parser tcp_wrappers pam systemd libseccomp
+RUN yum install -y bash openssh-server nuttcp net-tools
+RUN yum install -y libnl3 libtalloc
+RUN yum install -y freeradius-client
+RUN yum install -y lz4 radcli liboauth oathtool procps-ng iputils
+RUN yum install -y krb5-libs less
+RUN systemctl enable sshd
+RUN sed 's/PermitRootLogin without-password/PermitRootLogin yes/g' -i /etc/ssh/sshd_config
+
+RUN echo 'root:root' |chpasswd
+RUN useradd -m -d /home/admin -s /bin/bash admin
+RUN echo 'admin:admin' |chpasswd
+
+RUN mkdir /etc/ocserv
+
+
+ADD key.pem /etc/ocserv/
+ADD cert.pem /etc/ocserv/
+ADD ocserv-fw.conf /etc/ocserv/ocserv.conf
+ADD passwd /etc/ocserv/
+ADD ocserv /usr/sbin/
+ADD ocpasswd /usr/bin/
+ADD occtl /usr/bin/
+ADD ocserv-fw /usr/bin/
+ADD fw-script /usr/bin/
+# It's not possible to use mknod inside a container with the default LXC
+# template, so we untar it from this archive.
+ADD dev-tun.tgz /dev/
+
+CMD nuttcp -S;sshd-keygen;/usr/sbin/sshd;mkdir -p /tmp/disconnect/;usr/sbin/ocserv -d 1 -f;sleep 3600

tests/docker-ocserv/fw-script

@@ -0,0 +1,31 @@
+#!/bin/sh
+
+if [ "$REASON" = "connect" ];then
+	iptables -S|grep ocserv-fw|grep 10.48.59.1|grep ACCEPT|grep 53
+	if test $? != 0;then
+		echo "dns was not accepted"
+		exit 1
+	fi
+
+	iptables -S|grep ocserv-fw|grep 10.47.59.0/24|grep ACCEPT
+	if test $? != 0;then
+		echo "route was not accepted"
+		exit 1
+	fi
+
+	iptables -S|grep ocserv-fw|grep 10.46.59.0/24|grep DROP
+	if test $? != 0;then
+		echo "route was not dropped"
+		exit 1
+	fi
+
+	ip6tables -S|grep ocserv-fw|grep "fd91:6d87:7441:dc6a::/64"|grep ACCEPT
+	if test $? != 0;then
+		echo "route6 was not accepted"
+		exit 1
+	fi
+
+	touch /tmp/follow-up-script-was-run
+fi
+
+exit 0

tests/docker-ocserv/ocserv-fw.conf

@@ -0,0 +1,307 @@
+# User authentication method. Could be set multiple times and in that case
+# all should succeed.
+# Options: certificate, pam. 
+#auth = "certificate"
+auth = "plain[/etc/ocserv/passwd]"
+#auth = "pam"
+
+# Whether to enable support for the occtl tool (i.e., either through D-BUS,
+# or via a unix socket).
+use-occtl = true
+
+# socket file used for IPC with occtl. You only need to set that,
+# if you use more than a single servers.
+#occtl-socket-file = /var/run/occtl.socket
+
+# The plain option requires specifying a password file which contains
+# entries of the following format.
+# "username:groupname:encoded-password"
+# One entry must be listed per line, and 'ocpasswd' can be used
+# to generate password entries.
+#auth = "plain[/etc/ocserv/ocpasswd]"
+
+# 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]
+
+# 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
+
+# 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 = 240
+
+# Dead peer detection for mobile clients. The needs to
+# be much higher to prevent such clients being awaken too 
+# often by the DPD messages, and save battery.
+# (clients that send the X-AnyConnect-Identifier-DeviceType)
+mobile-dpd = 1800
+
+# 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 = /etc/ocserv/cert.pem
+server-key = /etc/ocserv/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, and is 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
+# client certificates (public keys) if certificate authentication
+# is set.
+#ca-cert = /path/to/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
+
+# The revocation list of the certificates issued by the 'ca-cert' above.
+#crl = /path/to/crl.pem
+
+# GnuTLS priority string
+tls-priorities = "NORMAL:%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 allowed to stay idle (no traffic)
+# before being disconnected. Unset to disable.
+#idle-timeout = 1200
+
+# The time (in seconds) that a mobile client is allowed to stay idle (no
+# traffic) before being disconnected. Unset to disable.
+#mobile-idle-timeout = 2400
+
+# The time (in seconds) that a client is not allowed to reconnect after 
+# a failed authentication attempt.
+#min-reauth-time = 2
+
+#max-ban-score = 50
+
+# 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 = 86400
+
+# ReKey time (in seconds)
+# ocserv will ask the client to refresh keys periodically once
+# this amount of seconds is elapsed. Set to zero to disable.
+rekey-time = 172800
+
+# ReKey method
+# Valid options: ssl, new-tunnel
+#  ssl: Will perform an efficient rehandshake on the channel allowing
+#       a seamless connection during rekey.
+#  new-tunnel: Will instruct the client to discard and re-establish the channel.
+#       Use this option only if the connecting clients have issues with the ssl
+#       option.
+rekey-method = ssl
+
+# 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),
+# ID (a unique numeric ID); REASON may be "connect" or "disconnect".
+connect-script = /usr/bin/fw-script
+#disconnect-script = /usr/bin/fw-script
+
+# UTMP
+use-utmp = true
+
+# D-BUS usage. If disabled occtl tool cannot be used. If enabled
+# then ocserv must have access to register org.infradead.ocserv
+# D-BUS service. See doc/dbus/org.infradead.ocserv.conf
+use-dbus = false
+
+# PID file. It can be overriden in the command line.
+pid-file = /var/run/ocserv.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 = /var/run/ocserv-socket
+
+# The user the worker processes will be run as. It should be
+# unique (no other services run as this user).
+run-as-user = nobody
+run-as-group = daemon
+
+# Set the protocol-defined priority (SO_PRIORITY) for packets to
+# be sent. That is a number from 0 to 6 with 0 being the lowest
+# priority. Alternatively this can be used to set the IP Type-
+# Of-Service, by setting it to a hexadecimal number (e.g., 0x20).
+# This can be set per user/group or globally.
+#net-priority = 3
+
+# Set the VPN worker process into a specific cgroup. This is Linux
+# specific and can be set per user/group or globally.
+#cgroup = "cpuset,cpu:test"
+
+#
+# Network settings
+#
+
+# The name of the tun device
+device = vpns
+
+# The default domain to be advertised
+default-domain = example.com
+
+# The pool of addresses that leases will be given from.
+ipv4-network = 192.168.84.0
+ipv4-netmask = 255.255.255.0
+
+# The advertized DNS server. Use multiple lines for
+# multiple servers.
+# dns = fc00::4be0
+dns = 10.48.59.1
+
+# The NBNS server (if any)
+#nbns = 192.168.1.3
+
+# The IPv6 subnet that leases will be given from.
+ipv6-network = fd91:6d87:7441:dc6a::/64
+
+# The domains over which the provided DNS should be used. Use
+# multiple lines for multiple domains.
+#split-dns = example.com
+
+# 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
+
+# Unset to assign the default MTU of the device
+# mtu = 
+
+# Unset to enable bandwidth restrictions (in bytes/sec). The
+# setting here is global, but can also be set per user or per group.
+#rx-data-per-sec = 40000
+#tx-data-per-sec = 40000
+
+# The number of packets (of MTU size) that are available in
+# the output buffer. The default is low to improve latency.
+# Setting it higher will improve throughput.
+#output-buffer = 10
+
+# Routes to be forwarded to the client. If you need the
+# client to forward routes to the server, you may use the 
+# config-per-user/group or even connect and disconnect scripts.
+#
+# To set the server as the default gateway for the client just
+# comment out all routes from the server.
+route = 192.168.84.0/24
+route = 10.47.59.0/24
+#route = 192.168.5.0/255.255.255.0
+route = fd91:6d87:7441:dc6a::/64
+
+no-route = 10.46.59.0/24
+
+restrict-user-to-routes = true
+
+# Configuration files that will be applied per user connection or
+# per group. Each file name on these directories must match the username
+# or the groupname.
+# The options allowed in the configuration files are dns, nbns,
+#  ipv?-network, ipv4-netmask, ipv6-prefix, rx/tx-per-sec, iroute, route,
+#  net-priority and cgroup.
+#
+# Note that the 'iroute' option allows to add routes on the server
+# based on a user or group. The syntax depends on the input accepted
+# by the commands route-add-cmd and route-del-cmd (see below).
+
+#config-per-user = /etc/ocserv/config-per-user/
+#config-per-group = /etc/ocserv/config-per-group/
+
+# The system command to use to setup a route. %R will be replaced with the
+# route/mask and %D with the (tun) device.
+#
+# The following example is from linux systems. %R should be something
+# like 192.168.2.0/24
+
+#route-add-cmd = "ip route add %R dev %D"
+#route-del-cmd = "ip route delete %R dev %D"
+
+#
+# The following options are for (experimental) AnyConnect client 
+# compatibility. 
+
+# Client profile xml. A sample file exists in doc/profile.xml.
+# This file must be accessible from inside the worker's chroot. 
+# It is not used by the openconnect client.
+#user-profile = profile.xml
+
+# Binary files that may be downloaded by the CISCO client. Must
+# be within any chroot environment.
+#binary-files = /path/to/binaries
+
+# Unless set to false it is required for clients to present their
+# certificate even if they are authenticating via a previously granted
+# cookie and complete their authentication in the same TCP connection.
+# Legacy CISCO clients do not do that, and thus this option should be 
+# set for them.
+#cisco-client-compat = false
+
+#Advanced options
+
+# Option to allow sending arbitrary custom headers to the client after
+# authentication and prior to VPN tunnel establishment.
+#custom-header = "X-My-Header: hi there"

tests/firewall-test

@@ -0,0 +1,142 @@
+#!/bin/sh
+#
+# Copyright (C) 2014 Red Hat
+#
+# 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 General Public License
+# along with ocserv; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+srcdir=${srcdir:-.}
+
+#this test can only be run as root
+id|grep root >/dev/null 2>&1
+if [ $? != 0 ];then
+	exit 77
+fi
+
+PORT_OCSERV=443
+CONFIG="fw"
+IMAGE=ocserv-fw-test
+IMAGE_NAME=test_fw_ocserv
+TMP=$IMAGE_NAME.tmp
+. ./docker-common.sh
+
+$DOCKER run -e OCCTL_PAGER=cat -P --privileged=true -p 22 --tty=false -d --name $IMAGE_NAME $IMAGE
+if test $? != 0;then
+	echo "Cannot run docker image"
+	exit 1
+fi
+
+echo "ocserv image was run"
+#wait for ocserv to server
+sleep 5
+
+IP=`$DOCKER inspect $IMAGE_NAME | grep IPAddress | cut -d '"' -f 4`
+if test -z "$IP";then
+	echo "Detected IP is null!"
+	stop
+fi
+echo "Detected IP: $IP"
+
+if test ! -z "$QUIT_ON_INIT";then
+	exit 0
+fi
+
+$ECHO_E "testuser" >pass-full$TMP
+$OPENCONNECT $IP:$PORT_OCSERV -u test --passwd-on-stdin -v --servercert=d66b507ae074d03b02eafca40d35f87dd81049d3 --cookieonly < pass-full$TMP
+if test $? = 0;then
+	echo "Authentication with wrong password succeeded!"
+	stop
+fi
+
+$ECHO_E "test" >pass-full$TMP
+$OPENCONNECT $IP:$PORT_OCSERV -u testuser --passwd-on-stdin -v --servercert=d66b507ae074d03b02eafca40d35f87dd81049d3 --cookieonly < pass-full$TMP
+if test $? = 0;then
+	echo "Authentication with wrong username succeeded!"
+	stop
+fi
+
+echo ""
+echo "Connecting with correct username"
+$ECHO_E "test" >pass-full$TMP
+$OPENCONNECT $IP:$PORT_OCSERV -b --pid-file ${srcdir}/pid1.$$ -u test --passwd-on-stdin -v --servercert=d66b507ae074d03b02eafca40d35f87dd81049d3 < pass-full$TMP
+if test $? != 0;then
+	echo "Cannot connect to server"
+	stop
+fi
+
+#wait for openconnect
+sleep 5
+
+rm -f pass-full$TMP
+if [ ! -f ${srcdir}/pid1.$$ ];then
+	echo "It was not possible to establish session!"
+	stop
+fi
+
+PID=`cat ${srcdir}/pid1.$$`
+
+ping -w 5 192.168.84.1 -s 400
+if test $? != 0;then
+	kill -INT $PID
+	echo "Cannot ping ocserv"
+	stop
+fi
+
+ping6 -w 5 fd91:6d87:7441:dc6a::1
+if test $? != 0;then
+	kill -INT $PID
+	echo "Cannot ping the IPv6 of ocserv"
+	stop
+fi
+
+retrieve_user_info test "Restricted to routes: True"
+
+# There is an issue in nuttcp that makes it crash under docker if
+# /proc/sys/net/ipv4/tcp_adv_win_scale does not exist.
+if test "$FEDORA" = 1;then
+nuttcp -T 10 -t 192.168.84.1
+if test $? != 0;then
+	echo "Cannot send to ocserv"
+	exit 77
+	kill -INT $PID
+	stop
+fi
+
+nuttcp -T 10 -r 192.168.84.1
+if test $? != 0;then
+	echo "Cannot recv from ocserv"
+	exit 77
+	kill -INT $PID
+	stop
+fi
+fi
+
+sleep 2
+
+kill -INT $PID
+
+sleep 4
+
+check_for_file /tmp/follow-up-script-was-run
+if test $? != 0;then
+	echo "There was an issue; followup script was not run"
+	stop
+fi
+
+$DOCKER stop $IMAGE_NAME
+$DOCKER rm $IMAGE_NAME
+
+exit $ret

tests/full-test

@@ -91,21 +91,21 @@ PID=`cat ${srcdir}/pid1.$$`
 # The client IP depends on the username so it shouldn't change.
 ping -w 5 192.168.79.1
 if test $? != 0;then
-	kill $PID
+	kill -INT $PID
 	echo "Cannot ping ocserv"
 	stop
 fi
 
 ping -w 5 192.168.79.1 -s 1500
 if test $? != 0;then
-	kill $PID
+	kill -INT $PID
 	echo "Cannot ping ocserv"
 	stop
 fi
 
 ping6 -w 5 fd91:6d87:7341:db6a::1
 if test $? != 0;then
-	kill $PID
+	kill -INT $PID
 	echo "Cannot ping the IPv6 of ocserv"
 	stop
 fi
@@ -119,7 +119,7 @@ nuttcp -T 10 -t 192.168.79.1
 if test $? != 0;then
 	echo "Cannot send to ocserv"
 	exit 77
-	kill $PID
+	kill -INT $PID
 	stop
 fi
 
@@ -127,14 +127,14 @@ nuttcp -T 10 -r 192.168.79.1
 if test $? != 0;then
 	echo "Cannot recv from ocserv"
 	exit 77
-	kill $PID
+	kill -INT $PID
 	stop
 fi
 fi
 
 sleep 2
 
-kill $PID
+kill -INT $PID
 
 sleep 4