diff options
21 files changed, 1262 insertions, 58 deletions
diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/description.txt b/testing/tests/ikev2/nat-two-rw-mark-in-out/description.txt deleted file mode 100644 index dc0bccff6..000000000 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/description.txt +++ /dev/null @@ -1,15 +0,0 @@ -The roadwarriors <b>alice</b> and <b>venus</b> sitting behind the NAT router <b>moon</b> set up -tunnels to gateway <b>sun</b>. UDP encapsulation is used to traverse the NAT router. -Since both roadwarriors possess the same 10.1.0.0/25 subnet, gateway <b>sun</b> uses Source NAT -after ESP decryption to map these subnets to 10.3.0.10 and 10.3.0.20, respectively. -<p/> -In order to differentiate between the tunnels to <b>alice</b> and <b>venus</b>, respectively, -<b>XFRM marks</b> are defined for both the inbound and outbound IPsec SAs and policies using -the <b>mark_in</b> and <b>mark_out</b> parameters in ipsec.conf. -<p/> -<b>iptables -t mangle</b> rules are then used in the PREROUTING chain to mark the traffic to -and from <b>alice</b> and <b>venus</b>, respectively. -<p/> -<b>leftfirewall=yes</b> automatically inserts iptables-based firewall rules that let pass -the tunneled traffic. In order to test the tunnel, the NAT-ed hosts <b>alice</b> and <b>venus</b> -ping the client <b>bob</b> behind the gateway <b>sun</b>. diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/pretest.dat b/testing/tests/ikev2/nat-two-rw-mark-in-out/pretest.dat deleted file mode 100644 index 52b87fa4e..000000000 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/pretest.dat +++ /dev/null @@ -1,24 +0,0 @@ -alice::/etc/init.d/iptables start 2> /dev/null -venus::/etc/init.d/iptables start 2> /dev/null -sun::/etc/init.d/iptables start 2> /dev/null -moon::echo 1 > /proc/sys/net/ipv4/ip_forward -moon::iptables -t nat -A POSTROUTING -o eth0 -s 10.1.0.0/16 -p tcp -j SNAT --to PH_IP_MOON -moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_ALICE -p udp --sport 500 -j SNAT --to PH_IP_MOON:510 -moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_VENUS -p udp --sport 500 -j SNAT --to PH_IP_MOON:520 -moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_ALICE -p udp --sport 4500 -j SNAT --to PH_IP_MOON:4510 -moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_VENUS -p udp --sport 4500 -j SNAT --to PH_IP_MOON:4520 -sun::echo 1 > /proc/sys/net/ipv4/ip_forward -sun::iptables -t mangle -A PREROUTING -s PH_IP_MOON -p udp --sport 4510 -j MARK --set-mark 10 -sun::iptables -t mangle -A PREROUTING -s PH_IP_MOON -p udp --sport 4520 -j MARK --set-mark 20 -sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 10 -j SNAT --to 10.3.0.10 -sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 20 -j SNAT --to 10.3.0.20 -sun::iptables -t mangle -A PREROUTING -d 10.3.0.10 -j MARK --set-mark 11 -sun::iptables -t mangle -A PREROUTING -d 10.3.0.20 -j MARK --set-mark 21 -alice::ipsec start -venus::ipsec start -sun::ipsec start -alice::sleep 2 -alice::ipsec up nat-t -venus::sleep 2 -venus::ipsec up nat-t -venus::sleep 2 diff --git a/testing/tests/ikev2/nat-two-rw-mark/description.txt b/testing/tests/ikev2/nat-two-rw-mark/description.txt index 4b9f43404..31e7cc48c 100644 --- a/testing/tests/ikev2/nat-two-rw-mark/description.txt +++ b/testing/tests/ikev2/nat-two-rw-mark/description.txt @@ -10,6 +10,7 @@ the <b>mark</b> parameter in ipsec.conf. <b>iptables -t mangle</b> rules are then used in the PREROUTING chain to mark the traffic to and from <b>alice</b> and <b>venus</b>, respectively. <p/> -<b>leftfirewall=yes</b> automatically inserts iptables-based firewall rules that let pass -the tunneled traffic. In order to test the tunnel, the NAT-ed hosts <b>alice</b> and <b>venus</b> -ping the client <b>bob</b> behind the gateway <b>sun</b>. +The iptables script designated by <b>leftupdown=/etc/mark_updown</b> automatically inserts +inbound mangle rules that mark the inbound ESP_IN_UDP packets as well as the IPsec-policy rules +that let pass the tunneled traffic. In order to test the tunnel, the NAT-ed hosts <b>alice</b> +and <b>venus</b> ping the client <b>bob</b> behind the gateway <b>sun</b>. diff --git a/testing/tests/ikev2/nat-two-rw-mark/hosts/sun/etc/ipsec.conf b/testing/tests/ikev2/nat-two-rw-mark/hosts/sun/etc/ipsec.conf index 317a4446b..ae4644c4b 100755 --- a/testing/tests/ikev2/nat-two-rw-mark/hosts/sun/etc/ipsec.conf +++ b/testing/tests/ikev2/nat-two-rw-mark/hosts/sun/etc/ipsec.conf @@ -30,6 +30,6 @@ conn sun leftcert=sunCert.pem leftid=@sun.strongswan.org leftsubnet=10.2.0.0/16 - leftfirewall=yes + leftupdown=/etc/mark_updown right=%any rightsubnet=0.0.0.0/0 diff --git a/testing/tests/ikev2/nat-two-rw-mark/hosts/sun/etc/mark_updown b/testing/tests/ikev2/nat-two-rw-mark/hosts/sun/etc/mark_updown new file mode 100755 index 000000000..442233f32 --- /dev/null +++ b/testing/tests/ikev2/nat-two-rw-mark/hosts/sun/etc/mark_updown @@ -0,0 +1,527 @@ +#! /bin/sh +# updown script setting inbound marks on ESP traffic in the mangle chain +# +# Copyright (C) 2003-2004 Nigel Meteringham +# Copyright (C) 2003-2004 Tuomo Soini +# Copyright (C) 2002-2004 Michael Richardson +# Copyright (C) 2005-2010 Andreas Steffen <andreas.steffen@strongswan.org> +# +# This program 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. See <http://www.fsf.org/copyleft/gpl.txt>. +# +# This program 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. + +# CAUTION: Installing a new version of strongSwan will install a new +# copy of this script, wiping out any custom changes you make. If +# you need changes, make a copy of this under another name, and customize +# that, and use the (left/right)updown parameters in ipsec.conf to make +# strongSwan use yours instead of this default one. + +# things that this script gets (from ipsec_pluto(8) man page) +# +# PLUTO_VERSION +# indicates what version of this interface is being +# used. This document describes version 1.1. This +# is upwardly compatible with version 1.0. +# +# PLUTO_VERB +# specifies the name of the operation to be performed +# (prepare-host, prepare-client, up-host, up-client, +# down-host, or down-client). If the address family +# for security gateway to security gateway communica- +# tions is IPv6, then a suffix of -v6 is added to the +# verb. +# +# PLUTO_CONNECTION +# is the name of the connection for which we are +# routing. +# +# PLUTO_NEXT_HOP +# is the next hop to which packets bound for the peer +# must be sent. +# +# PLUTO_INTERFACE +# is the name of the ipsec interface to be used. +# +# PLUTO_REQID +# is the requid of the ESP policy +# +# PLUTO_ME +# is the IP address of our host. +# +# PLUTO_MY_ID +# is the ID of our host. +# +# PLUTO_MY_CLIENT +# is the IP address / count of our client subnet. If +# the client is just the host, this will be the +# host's own IP address / max (where max is 32 for +# IPv4 and 128 for IPv6). +# +# PLUTO_MY_CLIENT_NET +# is the IP address of our client net. If the client +# is just the host, this will be the host's own IP +# address. +# +# PLUTO_MY_CLIENT_MASK +# is the mask for our client net. If the client is +# just the host, this will be 255.255.255.255. +# +# PLUTO_MY_SOURCEIP +# if non-empty, then the source address for the route will be +# set to this IP address. +# +# PLUTO_MY_PROTOCOL +# is the IP protocol that will be transported. +# +# PLUTO_MY_PORT +# is the UDP/TCP port to which the IPsec SA is +# restricted on our side. +# +# PLUTO_PEER +# is the IP address of our peer. +# +# PLUTO_PEER_ID +# is the ID of our peer. +# +# PLUTO_PEER_CA +# is the CA which issued the cert of our peer. +# +# PLUTO_PEER_CLIENT +# is the IP address / count of the peer's client sub- +# net. If the client is just the peer, this will be +# the peer's own IP address / max (where max is 32 +# for IPv4 and 128 for IPv6). +# +# PLUTO_PEER_CLIENT_NET +# is the IP address of the peer's client net. If the +# client is just the peer, this will be the peer's +# own IP address. +# +# PLUTO_PEER_CLIENT_MASK +# is the mask for the peer's client net. If the +# client is just the peer, this will be +# 255.255.255.255. +# +# PLUTO_PEER_PROTOCOL +# is the IP protocol that will be transported. +# +# PLUTO_PEER_PORT +# is the UDP/TCP port to which the IPsec SA is +# restricted on the peer side. +# +# PLUTO_XAUTH_ID +# is an optional user ID employed by the XAUTH protocol +# +# PLUTO_MARK_IN +# is an optional XFRM mark set on the inbound IPsec SA +# +# PLUTO_MARK_OUT +# is an optional XFRM mark set on the outbound IPsec SA +# +# PLUTO_ESP_ENC +# contains the remote UDP port in the case of ESP_IN_UDP +# encapsulation +# + +# define a minimum PATH environment in case it is not set +PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/sbin" +export PATH + +# uncomment to log VPN connections +VPN_LOGGING=1 +# +# tag put in front of each log entry: +TAG=vpn +# +# syslog facility and priority used: +FAC_PRIO=local0.notice +# +# to create a special vpn logging file, put the following line into +# the syslog configuration file /etc/syslog.conf: +# +# local0.notice -/var/log/vpn + +# in order to use source IP routing the Linux kernel options +# CONFIG_IP_ADVANCED_ROUTER and CONFIG_IP_MULTIPLE_TABLES +# must be enabled +# +# special routing table for sourceip routes +SOURCEIP_ROUTING_TABLE=220 +# +# priority of the sourceip routing table +SOURCEIP_ROUTING_TABLE_PRIO=220 + +# check interface version +case "$PLUTO_VERSION" in +1.[0|1]) # Older Pluto?!? Play it safe, script may be using new features. + echo "$0: obsolete interface version \`$PLUTO_VERSION'," >&2 + echo "$0: called by obsolete Pluto?" >&2 + exit 2 + ;; +1.*) ;; +*) echo "$0: unknown interface version \`$PLUTO_VERSION'" >&2 + exit 2 + ;; +esac + +# check parameter(s) +case "$1:$*" in +':') # no parameters + ;; +iptables:iptables) # due to (left/right)firewall; for default script only + ;; +custom:*) # custom parameters (see above CAUTION comment) + ;; +*) echo "$0: unknown parameters \`$*'" >&2 + exit 2 + ;; +esac + +# utility functions for route manipulation +# Meddling with this stuff should not be necessary and requires great care. +uproute() { + doroute add + ip route flush cache +} +downroute() { + doroute delete + ip route flush cache +} + +addsource() { + st=0 + if ! ip -o route get ${PLUTO_MY_SOURCEIP%/*} | grep -q ^local + then + it="ip addr add ${PLUTO_MY_SOURCEIP%/*}/32 dev $PLUTO_INTERFACE" + oops="`eval $it 2>&1`" + st=$? + if test " $oops" = " " -a " $st" != " 0" + then + oops="silent error, exit status $st" + fi + if test " $oops" != " " -o " $st" != " 0" + then + echo "$0: addsource \`$it' failed ($oops)" >&2 + fi + fi + return $st +} + +doroute() { + st=0 + + if [ -z "$PLUTO_MY_SOURCEIP" ] + then + for dir in /etc/sysconfig /etc/conf.d; do + if [ -f "$dir/defaultsource" ] + then + . "$dir/defaultsource" + fi + done + + if [ -n "$DEFAULTSOURCE" ] + then + PLUTO_MY_SOURCEIP=$DEFAULTSOURCE + fi + fi + + if [ -z "$KLIPS" -a -z "$PLUTO_MY_SOURCEIP" ] + then + # leave because no route entry is required + return $st + fi + + parms1="$PLUTO_PEER_CLIENT" + + if [ -n "$PLUTO_NEXT_HOP" ] + then + parms2="via $PLUTO_NEXT_HOP" + else + parms2="via $PLUTO_PEER" + fi + parms2="$parms2 dev $PLUTO_INTERFACE" + + parms3= + if [ -n "$PLUTO_MY_SOURCEIP" ] + then + if test "$1" = "add" + then + addsource + if ! ip rule list | grep -q "lookup $SOURCEIP_ROUTING_TABLE" + then + ip rule add pref $SOURCEIP_ROUTING_TABLE_PRIO table $SOURCEIP_ROUTING_TABLE + fi + fi + parms3="$parms3 src ${PLUTO_MY_SOURCEIP%/*} table $SOURCEIP_ROUTING_TABLE" + fi + + case "$PLUTO_PEER_CLIENT_NET/$PLUTO_PEER_CLIENT_MASK" in + "0.0.0.0/0.0.0.0") + # opportunistic encryption work around + # need to provide route that eclipses default, without + # replacing it. + it="ip route $1 0.0.0.0/1 $parms2 $parms3 && + ip route $1 128.0.0.0/1 $parms2 $parms3" + ;; + *) it="ip route $1 $parms1 $parms2 $parms3" + ;; + esac + oops="`eval $it 2>&1`" + st=$? + if test " $oops" = " " -a " $st" != " 0" + then + oops="silent error, exit status $st" + fi + if test " $oops" != " " -o " $st" != " 0" + then + echo "$0: doroute \`$it' failed ($oops)" >&2 + fi + return $st +} + +# in the presence of KLIPS and ipsecN interfaces do not use IPSEC_POLICY +if [ `echo "$PLUTO_INTERFACE" | grep "ipsec"` ] +then + KLIPS=1 + IPSEC_POLICY_IN="" + IPSEC_POLICY_OUT="" +else + KLIPS= + IPSEC_POLICY="-m policy --pol ipsec --proto esp --reqid $PLUTO_REQID" + IPSEC_POLICY_IN="$IPSEC_POLICY --dir in" + IPSEC_POLICY_OUT="$IPSEC_POLICY --dir out" +fi + +# is there an inbound mark to be set? +if [ -n "$PLUTO_MARK_IN" ] +then + if [ -n "$PLUTO_UDP_ENC" ] + then + SET_MARK="-p udp --sport $PLUTO_UDP_ENC" + else + SET_MARK="-p esp" + fi + SET_MARK="$SET_MARK -s $PLUTO_PEER -j MARK --set-mark $PLUTO_MARK_IN" +fi + +# are there port numbers? +if [ "$PLUTO_MY_PORT" != 0 ] +then + S_MY_PORT="--sport $PLUTO_MY_PORT" + D_MY_PORT="--dport $PLUTO_MY_PORT" +fi +if [ "$PLUTO_PEER_PORT" != 0 ] +then + S_PEER_PORT="--sport $PLUTO_PEER_PORT" + D_PEER_PORT="--dport $PLUTO_PEER_PORT" +fi + +# resolve octal escape sequences +PLUTO_MY_ID=`printf "$PLUTO_MY_ID"` +PLUTO_PEER_ID=`printf "$PLUTO_PEER_ID"` + +# the big choice +case "$PLUTO_VERB:$1" in +prepare-host:*|prepare-client:*) + if [ -z "$KLIPS" -a -z "$PLUTO_MY_SOURCEIP" ] + then + # exit because no route will be added, + # so that existing routes can stay + exit 0 + fi + + # delete possibly-existing route (preliminary to adding a route) + case "$PLUTO_PEER_CLIENT_NET/$PLUTO_PEER_CLIENT_MASK" in + "0.0.0.0/0.0.0.0") + # need to provide route that eclipses default, without + # replacing it. + parms1="0.0.0.0/1" + parms2="128.0.0.0/1" + it="ip route delete $parms1 2>&1 ; ip route delete $parms2 2>&1" + oops="`ip route delete $parms1 2>&1 ; ip route delete $parms2 2>&1`" + ;; + *) + parms="$PLUTO_PEER_CLIENT" + it="ip route delete $parms 2>&1" + oops="`ip route delete $parms 2>&1`" + ;; + esac + status="$?" + if test " $oops" = " " -a " $status" != " 0" + then + oops="silent error, exit status $status" + fi + case "$oops" in + *'RTNETLINK answers: No such process'*) + # This is what route (currently -- not documented!) gives + # for "could not find such a route". + oops= + status=0 + ;; + esac + if test " $oops" != " " -o " $status" != " 0" + then + echo "$0: \`$it' failed ($oops)" >&2 + fi + exit $status + ;; +route-host:*|route-client:*) + # connection to me or my client subnet being routed + uproute + ;; +unroute-host:*|unroute-client:*) + # connection to me or my client subnet being unrouted + downroute + ;; +up-host:) + # connection to me coming up + # If you are doing a custom version, firewall commands go here. + if [ -n "$PLUTO_MARK_IN" ] + then + iptables -t mangle -A PREROUTING $SET_MARK + fi + iptables -I INPUT 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_ME $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT + iptables -I OUTPUT 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT + # + # log IPsec host connection setup + if [ $VPN_LOGGING ] + then + if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ] + then + logger -t $TAG -p $FAC_PRIO \ + "+ $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME" + else + logger -t $TAG -p $FAC_PRIO \ + "+ $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME" + fi + fi + ;; +down-host:) + # connection to me going down + # If you are doing a custom version, firewall commands go here. + if [ -n "$PLUTO_MARK_IN" ] + then + iptables -t mangle -D PREROUTING $SET_MARK + fi + iptables -D INPUT -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_ME $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT + iptables -D OUTPUT -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT + # + # log IPsec host connection teardown + if [ $VPN_LOGGING ] + then + if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ] + then + logger -t $TAG -p $FAC_PRIO -- \ + "- $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME" + else + logger -t $TAG -p $FAC_PRIO -- \ + "- $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME" + fi + fi + ;; +up-client:) + # connection to my client subnet coming up + # If you are doing a custom version, firewall commands go here. + if [ -n "$PLUTO_MARK_IN" ] + then + iptables -t mangle -A PREROUTING $SET_MARK + fi + if [ "$PLUTO_PEER_CLIENT" != "$PLUTO_MY_SOURCEIP/32" ] + then + iptables -I FORWARD 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_MY_CLIENT $S_MY_PORT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT $IPSEC_POLICY_OUT -j ACCEPT + iptables -I FORWARD 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_MY_CLIENT $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT + fi + # + # a virtual IP requires an INPUT and OUTPUT rule on the host + # or sometimes host access via the internal IP is needed + if [ -n "$PLUTO_MY_SOURCEIP" -o -n "$PLUTO_HOST_ACCESS" ] + then + iptables -I INPUT 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_MY_CLIENT $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT + iptables -I OUTPUT 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_MY_CLIENT $S_MY_PORT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT $IPSEC_POLICY_OUT -j ACCEPT + fi + # + # log IPsec client connection setup + if [ $VPN_LOGGING ] + then + if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ] + then + logger -t $TAG -p $FAC_PRIO \ + "+ $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT" + else + logger -t $TAG -p $FAC_PRIO \ + "+ $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT" + fi + fi + ;; +down-client:) + # connection to my client subnet going down + # If you are doing a custom version, firewall commands go here. + if [ -n "$PLUTO_MARK_IN" ] + then + iptables -t mangle -D PREROUTING $SET_MARK + fi + if [ "$PLUTO_PEER_CLIENT" != "$PLUTO_MY_SOURCEIP/32" ] + then + iptables -D FORWARD -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_MY_CLIENT $S_MY_PORT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT \ + $IPSEC_POLICY_OUT -j ACCEPT + iptables -D FORWARD -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_MY_CLIENT $D_MY_PORT \ + $IPSEC_POLICY_IN -j ACCEPT + fi + # + # a virtual IP requires an INPUT and OUTPUT rule on the host + # or sometimes host access via the internal IP is needed + if [ -n "$PLUTO_MY_SOURCEIP" -o -n "$PLUTO_HOST_ACCESS" ] + then + iptables -D INPUT -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_MY_CLIENT $D_MY_PORT \ + $IPSEC_POLICY_IN -j ACCEPT + iptables -D OUTPUT -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_MY_CLIENT $S_MY_PORT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT \ + $IPSEC_POLICY_OUT -j ACCEPT + fi + # + # log IPsec client connection teardown + if [ $VPN_LOGGING ] + then + if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ] + then + logger -t $TAG -p $FAC_PRIO -- \ + "- $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT" + else + logger -t $TAG -p $FAC_PRIO -- \ + "- $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT" + fi + fi + ;; +*) echo "$0: unknown verb \`$PLUTO_VERB' or parameter \`$1'" >&2 + exit 1 + ;; +esac diff --git a/testing/tests/ikev2/nat-two-rw-mark/posttest.dat b/testing/tests/ikev2/nat-two-rw-mark/posttest.dat index df49eb777..ea86e85aa 100644 --- a/testing/tests/ikev2/nat-two-rw-mark/posttest.dat +++ b/testing/tests/ikev2/nat-two-rw-mark/posttest.dat @@ -1,3 +1,4 @@ +sun::iptables -t mangle -v -n -L PREROUTING sun::ipsec stop alice::ipsec stop venus::ipsec stop diff --git a/testing/tests/ikev2/nat-two-rw-mark/pretest.dat b/testing/tests/ikev2/nat-two-rw-mark/pretest.dat index f0783c9e7..105968f45 100644 --- a/testing/tests/ikev2/nat-two-rw-mark/pretest.dat +++ b/testing/tests/ikev2/nat-two-rw-mark/pretest.dat @@ -7,9 +7,6 @@ moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_ALICE -p udp --sport 500 moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_VENUS -p udp --sport 500 -j SNAT --to PH_IP_MOON:520 moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_ALICE -p udp --sport 4500 -j SNAT --to PH_IP_MOON:4510 moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_VENUS -p udp --sport 4500 -j SNAT --to PH_IP_MOON:4520 -sun::echo 1 > /proc/sys/net/ipv4/ip_forward -sun::iptables -t mangle -A PREROUTING -s PH_IP_MOON -p udp --sport 4510 -j MARK --set-mark 10 -sun::iptables -t mangle -A PREROUTING -s PH_IP_MOON -p udp --sport 4520 -j MARK --set-mark 20 sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 10 -j SNAT --to 10.3.0.10 sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 20 -j SNAT --to 10.3.0.20 sun::iptables -t mangle -A PREROUTING -d 10.3.0.10 -j MARK --set-mark 10 diff --git a/testing/tests/ikev2/rw-mark-in-out/description.txt b/testing/tests/ikev2/rw-mark-in-out/description.txt new file mode 100644 index 000000000..01c96b94a --- /dev/null +++ b/testing/tests/ikev2/rw-mark-in-out/description.txt @@ -0,0 +1,16 @@ +The roadwarriors <b>alice</b> and <b>venus</b> sitting behind the router <b>moon</b> set up +tunnels to gateway <b>sun</b>. Since both roadwarriors possess the same 10.1.0.0/25 subnet, +gateway <b>sun</b> uses Source NAT after ESP decryption to map these subnets to 10.3.0.10 +and 10.3.0.20, respectively. +<p/> +In order to differentiate between the tunnels to <b>alice</b> and <b>venus</b>, respectively, +<b>XFRM marks</b> are defined for both the inbound and outbound IPsec SAs and policies using +the <b>mark_in</b> and <b>mark_out</b> parameters in ipsec.conf. +<p/> +<b>iptables -t mangle</b> rules are then used in the PREROUTING chain to mark the traffic to +and from <b>alice</b> and <b>venus</b>, respectively. +<p/> +The iptables script designated by <b>leftupdown=/etc/mark_updown</b> automatically inserts +inbound mangle rules that mark the inbound ESP packets as well as the IPsec-policy rules +that let pass the tunneled traffic. In order to test the tunnel, the hosts <b>alice</b> +and <b>venus</b> ping the client <b>bob</b> behind the gateway <b>sun</b>. diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/evaltest.dat b/testing/tests/ikev2/rw-mark-in-out/evaltest.dat index 74ba178d9..c248a508a 100644 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/evaltest.dat +++ b/testing/tests/ikev2/rw-mark-in-out/evaltest.dat @@ -1,15 +1,15 @@ -alice::ipsec statusall::nat-t.*INSTALLED::YES -venus::ipsec statusall::nat-t.*INSTALLED::YES +alice::ipsec statusall::home.*INSTALLED::YES +venus::ipsec statusall::home.*INSTALLED::YES sun::ipsec statusall::alice.*ESTABLISHED.*alice@strongswan.org::YES sun::ipsec statusall::venus.*ESTABLISHED.*venus.strongswan.org::YES sun::ipsec statusall::alice.*10.2.0.0/16 === 10.1.0.0/25::YES sun::ipsec statusall::venus.*10.2.0.0/16 === 10.1.0.0/25::YES alice::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_seq=1::YES venus::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_seq=1::YES -moon::tcpdump::IP moon.strongswan.org.4510.* > sun.strongswan.org.ipsec-nat-t: UDP::YES -moon::tcpdump::IP moon.strongswan.org.4520.* > sun.strongswan.org.ipsec-nat-t: UDP::YES -moon::tcpdump::IP sun.strongswan.org.ipsec-nat-t > moon.strongswan.org.4510.*: UDP::YES -moon::tcpdump::IP sun.strongswan.org.ipsec-nat-t > moon.strongswan.org.4520.*: UDP::YES +moon::tcpdump::IP alice.strongswan.org > sun.strongswan.org: ESP::YES +moon::tcpdump::IP venus.strongswan.org > sun.strongswan.org: ESP::YES +moon::tcpdump::IP sun.strongswan.org > alice.strongswan.org: ESP::YES +moon::tcpdump::IP sun.strongswan.org > venus.strongswan.org: ESP::YES bob::tcpdump::10.3.0.10 > bob.strongswan.org: ICMP echo request::YES bob::tcpdump::10.3.0.20 > bob.strongswan.org: ICMP echo request::YES bob::tcpdump::bob.strongswan.org > 10.3.0.10: ICMP echo reply::YES diff --git a/testing/tests/ikev2/rw-mark-in-out/hosts/alice/etc/init.d/iptables b/testing/tests/ikev2/rw-mark-in-out/hosts/alice/etc/init.d/iptables new file mode 100755 index 000000000..5594bbf52 --- /dev/null +++ b/testing/tests/ikev2/rw-mark-in-out/hosts/alice/etc/init.d/iptables @@ -0,0 +1,77 @@ +#!/sbin/runscript +# Copyright 1999-2004 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +opts="start stop reload" + +depend() { + before net + need logger +} + +start() { + ebegin "Starting firewall" + + # default policy is DROP + /sbin/iptables -P INPUT DROP + /sbin/iptables -P OUTPUT DROP + /sbin/iptables -P FORWARD DROP + + # allow ESP + iptables -A INPUT -i eth0 -p 50 -j ACCEPT + iptables -A OUTPUT -o eth0 -p 50 -j ACCEPT + + # allow IKE + iptables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT + iptables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT + + # allow MOBIKE + iptables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT + iptables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT + + # allow crl fetch from winnetou + iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT + iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT + + # allow ssh + iptables -A INPUT -p tcp --dport 22 -j ACCEPT + iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT + + eend $? +} + +stop() { + ebegin "Stopping firewall" + for a in `cat /proc/net/ip_tables_names`; do + /sbin/iptables -F -t $a + /sbin/iptables -X -t $a + + if [ $a == nat ]; then + /sbin/iptables -t nat -P PREROUTING ACCEPT + /sbin/iptables -t nat -P POSTROUTING ACCEPT + /sbin/iptables -t nat -P OUTPUT ACCEPT + elif [ $a == mangle ]; then + /sbin/iptables -t mangle -P PREROUTING ACCEPT + /sbin/iptables -t mangle -P INPUT ACCEPT + /sbin/iptables -t mangle -P FORWARD ACCEPT + /sbin/iptables -t mangle -P OUTPUT ACCEPT + /sbin/iptables -t mangle -P POSTROUTING ACCEPT + elif [ $a == filter ]; then + /sbin/iptables -t filter -P INPUT ACCEPT + /sbin/iptables -t filter -P FORWARD ACCEPT + /sbin/iptables -t filter -P OUTPUT ACCEPT + fi + done + eend $? +} + +reload() { + ebegin "Flushing firewall" + for a in `cat /proc/net/ip_tables_names`; do + /sbin/iptables -F -t $a + /sbin/iptables -X -t $a + done; + eend $? + start +} + diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/alice/etc/ipsec.conf b/testing/tests/ikev2/rw-mark-in-out/hosts/alice/etc/ipsec.conf index 0f7c23845..dd0240b07 100755 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/alice/etc/ipsec.conf +++ b/testing/tests/ikev2/rw-mark-in-out/hosts/alice/etc/ipsec.conf @@ -12,7 +12,7 @@ conn %default keyingtries=1 keyexchange=ikev2 -conn nat-t +conn home left=%defaultroute leftsubnet=10.1.0.0/25 leftcert=aliceCert.pem diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/alice/etc/strongswan.conf b/testing/tests/ikev2/rw-mark-in-out/hosts/alice/etc/strongswan.conf index 339b56987..339b56987 100644 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/alice/etc/strongswan.conf +++ b/testing/tests/ikev2/rw-mark-in-out/hosts/alice/etc/strongswan.conf diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/sun/etc/ipsec.conf b/testing/tests/ikev2/rw-mark-in-out/hosts/sun/etc/ipsec.conf index 850c55f6d..6a53df6a0 100755 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/sun/etc/ipsec.conf +++ b/testing/tests/ikev2/rw-mark-in-out/hosts/sun/etc/ipsec.conf @@ -4,7 +4,7 @@ config setup crlcheckinterval=180 strictcrlpolicy=no plutostart=no - charondebug="knl 2" + charondebug="knl 2, chd 3" conn %default ikelifetime=60m @@ -32,6 +32,6 @@ conn sun leftcert=sunCert.pem leftid=@sun.strongswan.org leftsubnet=10.2.0.0/16 - leftfirewall=yes + leftupdown=/etc/mark_updown right=%any rightsubnet=0.0.0.0/0 diff --git a/testing/tests/ikev2/rw-mark-in-out/hosts/sun/etc/mark_updown b/testing/tests/ikev2/rw-mark-in-out/hosts/sun/etc/mark_updown new file mode 100755 index 000000000..442233f32 --- /dev/null +++ b/testing/tests/ikev2/rw-mark-in-out/hosts/sun/etc/mark_updown @@ -0,0 +1,527 @@ +#! /bin/sh +# updown script setting inbound marks on ESP traffic in the mangle chain +# +# Copyright (C) 2003-2004 Nigel Meteringham +# Copyright (C) 2003-2004 Tuomo Soini +# Copyright (C) 2002-2004 Michael Richardson +# Copyright (C) 2005-2010 Andreas Steffen <andreas.steffen@strongswan.org> +# +# This program 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. See <http://www.fsf.org/copyleft/gpl.txt>. +# +# This program 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. + +# CAUTION: Installing a new version of strongSwan will install a new +# copy of this script, wiping out any custom changes you make. If +# you need changes, make a copy of this under another name, and customize +# that, and use the (left/right)updown parameters in ipsec.conf to make +# strongSwan use yours instead of this default one. + +# things that this script gets (from ipsec_pluto(8) man page) +# +# PLUTO_VERSION +# indicates what version of this interface is being +# used. This document describes version 1.1. This +# is upwardly compatible with version 1.0. +# +# PLUTO_VERB +# specifies the name of the operation to be performed +# (prepare-host, prepare-client, up-host, up-client, +# down-host, or down-client). If the address family +# for security gateway to security gateway communica- +# tions is IPv6, then a suffix of -v6 is added to the +# verb. +# +# PLUTO_CONNECTION +# is the name of the connection for which we are +# routing. +# +# PLUTO_NEXT_HOP +# is the next hop to which packets bound for the peer +# must be sent. +# +# PLUTO_INTERFACE +# is the name of the ipsec interface to be used. +# +# PLUTO_REQID +# is the requid of the ESP policy +# +# PLUTO_ME +# is the IP address of our host. +# +# PLUTO_MY_ID +# is the ID of our host. +# +# PLUTO_MY_CLIENT +# is the IP address / count of our client subnet. If +# the client is just the host, this will be the +# host's own IP address / max (where max is 32 for +# IPv4 and 128 for IPv6). +# +# PLUTO_MY_CLIENT_NET +# is the IP address of our client net. If the client +# is just the host, this will be the host's own IP +# address. +# +# PLUTO_MY_CLIENT_MASK +# is the mask for our client net. If the client is +# just the host, this will be 255.255.255.255. +# +# PLUTO_MY_SOURCEIP +# if non-empty, then the source address for the route will be +# set to this IP address. +# +# PLUTO_MY_PROTOCOL +# is the IP protocol that will be transported. +# +# PLUTO_MY_PORT +# is the UDP/TCP port to which the IPsec SA is +# restricted on our side. +# +# PLUTO_PEER +# is the IP address of our peer. +# +# PLUTO_PEER_ID +# is the ID of our peer. +# +# PLUTO_PEER_CA +# is the CA which issued the cert of our peer. +# +# PLUTO_PEER_CLIENT +# is the IP address / count of the peer's client sub- +# net. If the client is just the peer, this will be +# the peer's own IP address / max (where max is 32 +# for IPv4 and 128 for IPv6). +# +# PLUTO_PEER_CLIENT_NET +# is the IP address of the peer's client net. If the +# client is just the peer, this will be the peer's +# own IP address. +# +# PLUTO_PEER_CLIENT_MASK +# is the mask for the peer's client net. If the +# client is just the peer, this will be +# 255.255.255.255. +# +# PLUTO_PEER_PROTOCOL +# is the IP protocol that will be transported. +# +# PLUTO_PEER_PORT +# is the UDP/TCP port to which the IPsec SA is +# restricted on the peer side. +# +# PLUTO_XAUTH_ID +# is an optional user ID employed by the XAUTH protocol +# +# PLUTO_MARK_IN +# is an optional XFRM mark set on the inbound IPsec SA +# +# PLUTO_MARK_OUT +# is an optional XFRM mark set on the outbound IPsec SA +# +# PLUTO_ESP_ENC +# contains the remote UDP port in the case of ESP_IN_UDP +# encapsulation +# + +# define a minimum PATH environment in case it is not set +PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/sbin" +export PATH + +# uncomment to log VPN connections +VPN_LOGGING=1 +# +# tag put in front of each log entry: +TAG=vpn +# +# syslog facility and priority used: +FAC_PRIO=local0.notice +# +# to create a special vpn logging file, put the following line into +# the syslog configuration file /etc/syslog.conf: +# +# local0.notice -/var/log/vpn + +# in order to use source IP routing the Linux kernel options +# CONFIG_IP_ADVANCED_ROUTER and CONFIG_IP_MULTIPLE_TABLES +# must be enabled +# +# special routing table for sourceip routes +SOURCEIP_ROUTING_TABLE=220 +# +# priority of the sourceip routing table +SOURCEIP_ROUTING_TABLE_PRIO=220 + +# check interface version +case "$PLUTO_VERSION" in +1.[0|1]) # Older Pluto?!? Play it safe, script may be using new features. + echo "$0: obsolete interface version \`$PLUTO_VERSION'," >&2 + echo "$0: called by obsolete Pluto?" >&2 + exit 2 + ;; +1.*) ;; +*) echo "$0: unknown interface version \`$PLUTO_VERSION'" >&2 + exit 2 + ;; +esac + +# check parameter(s) +case "$1:$*" in +':') # no parameters + ;; +iptables:iptables) # due to (left/right)firewall; for default script only + ;; +custom:*) # custom parameters (see above CAUTION comment) + ;; +*) echo "$0: unknown parameters \`$*'" >&2 + exit 2 + ;; +esac + +# utility functions for route manipulation +# Meddling with this stuff should not be necessary and requires great care. +uproute() { + doroute add + ip route flush cache +} +downroute() { + doroute delete + ip route flush cache +} + +addsource() { + st=0 + if ! ip -o route get ${PLUTO_MY_SOURCEIP%/*} | grep -q ^local + then + it="ip addr add ${PLUTO_MY_SOURCEIP%/*}/32 dev $PLUTO_INTERFACE" + oops="`eval $it 2>&1`" + st=$? + if test " $oops" = " " -a " $st" != " 0" + then + oops="silent error, exit status $st" + fi + if test " $oops" != " " -o " $st" != " 0" + then + echo "$0: addsource \`$it' failed ($oops)" >&2 + fi + fi + return $st +} + +doroute() { + st=0 + + if [ -z "$PLUTO_MY_SOURCEIP" ] + then + for dir in /etc/sysconfig /etc/conf.d; do + if [ -f "$dir/defaultsource" ] + then + . "$dir/defaultsource" + fi + done + + if [ -n "$DEFAULTSOURCE" ] + then + PLUTO_MY_SOURCEIP=$DEFAULTSOURCE + fi + fi + + if [ -z "$KLIPS" -a -z "$PLUTO_MY_SOURCEIP" ] + then + # leave because no route entry is required + return $st + fi + + parms1="$PLUTO_PEER_CLIENT" + + if [ -n "$PLUTO_NEXT_HOP" ] + then + parms2="via $PLUTO_NEXT_HOP" + else + parms2="via $PLUTO_PEER" + fi + parms2="$parms2 dev $PLUTO_INTERFACE" + + parms3= + if [ -n "$PLUTO_MY_SOURCEIP" ] + then + if test "$1" = "add" + then + addsource + if ! ip rule list | grep -q "lookup $SOURCEIP_ROUTING_TABLE" + then + ip rule add pref $SOURCEIP_ROUTING_TABLE_PRIO table $SOURCEIP_ROUTING_TABLE + fi + fi + parms3="$parms3 src ${PLUTO_MY_SOURCEIP%/*} table $SOURCEIP_ROUTING_TABLE" + fi + + case "$PLUTO_PEER_CLIENT_NET/$PLUTO_PEER_CLIENT_MASK" in + "0.0.0.0/0.0.0.0") + # opportunistic encryption work around + # need to provide route that eclipses default, without + # replacing it. + it="ip route $1 0.0.0.0/1 $parms2 $parms3 && + ip route $1 128.0.0.0/1 $parms2 $parms3" + ;; + *) it="ip route $1 $parms1 $parms2 $parms3" + ;; + esac + oops="`eval $it 2>&1`" + st=$? + if test " $oops" = " " -a " $st" != " 0" + then + oops="silent error, exit status $st" + fi + if test " $oops" != " " -o " $st" != " 0" + then + echo "$0: doroute \`$it' failed ($oops)" >&2 + fi + return $st +} + +# in the presence of KLIPS and ipsecN interfaces do not use IPSEC_POLICY +if [ `echo "$PLUTO_INTERFACE" | grep "ipsec"` ] +then + KLIPS=1 + IPSEC_POLICY_IN="" + IPSEC_POLICY_OUT="" +else + KLIPS= + IPSEC_POLICY="-m policy --pol ipsec --proto esp --reqid $PLUTO_REQID" + IPSEC_POLICY_IN="$IPSEC_POLICY --dir in" + IPSEC_POLICY_OUT="$IPSEC_POLICY --dir out" +fi + +# is there an inbound mark to be set? +if [ -n "$PLUTO_MARK_IN" ] +then + if [ -n "$PLUTO_UDP_ENC" ] + then + SET_MARK="-p udp --sport $PLUTO_UDP_ENC" + else + SET_MARK="-p esp" + fi + SET_MARK="$SET_MARK -s $PLUTO_PEER -j MARK --set-mark $PLUTO_MARK_IN" +fi + +# are there port numbers? +if [ "$PLUTO_MY_PORT" != 0 ] +then + S_MY_PORT="--sport $PLUTO_MY_PORT" + D_MY_PORT="--dport $PLUTO_MY_PORT" +fi +if [ "$PLUTO_PEER_PORT" != 0 ] +then + S_PEER_PORT="--sport $PLUTO_PEER_PORT" + D_PEER_PORT="--dport $PLUTO_PEER_PORT" +fi + +# resolve octal escape sequences +PLUTO_MY_ID=`printf "$PLUTO_MY_ID"` +PLUTO_PEER_ID=`printf "$PLUTO_PEER_ID"` + +# the big choice +case "$PLUTO_VERB:$1" in +prepare-host:*|prepare-client:*) + if [ -z "$KLIPS" -a -z "$PLUTO_MY_SOURCEIP" ] + then + # exit because no route will be added, + # so that existing routes can stay + exit 0 + fi + + # delete possibly-existing route (preliminary to adding a route) + case "$PLUTO_PEER_CLIENT_NET/$PLUTO_PEER_CLIENT_MASK" in + "0.0.0.0/0.0.0.0") + # need to provide route that eclipses default, without + # replacing it. + parms1="0.0.0.0/1" + parms2="128.0.0.0/1" + it="ip route delete $parms1 2>&1 ; ip route delete $parms2 2>&1" + oops="`ip route delete $parms1 2>&1 ; ip route delete $parms2 2>&1`" + ;; + *) + parms="$PLUTO_PEER_CLIENT" + it="ip route delete $parms 2>&1" + oops="`ip route delete $parms 2>&1`" + ;; + esac + status="$?" + if test " $oops" = " " -a " $status" != " 0" + then + oops="silent error, exit status $status" + fi + case "$oops" in + *'RTNETLINK answers: No such process'*) + # This is what route (currently -- not documented!) gives + # for "could not find such a route". + oops= + status=0 + ;; + esac + if test " $oops" != " " -o " $status" != " 0" + then + echo "$0: \`$it' failed ($oops)" >&2 + fi + exit $status + ;; +route-host:*|route-client:*) + # connection to me or my client subnet being routed + uproute + ;; +unroute-host:*|unroute-client:*) + # connection to me or my client subnet being unrouted + downroute + ;; +up-host:) + # connection to me coming up + # If you are doing a custom version, firewall commands go here. + if [ -n "$PLUTO_MARK_IN" ] + then + iptables -t mangle -A PREROUTING $SET_MARK + fi + iptables -I INPUT 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_ME $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT + iptables -I OUTPUT 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT + # + # log IPsec host connection setup + if [ $VPN_LOGGING ] + then + if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ] + then + logger -t $TAG -p $FAC_PRIO \ + "+ $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME" + else + logger -t $TAG -p $FAC_PRIO \ + "+ $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME" + fi + fi + ;; +down-host:) + # connection to me going down + # If you are doing a custom version, firewall commands go here. + if [ -n "$PLUTO_MARK_IN" ] + then + iptables -t mangle -D PREROUTING $SET_MARK + fi + iptables -D INPUT -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_ME $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT + iptables -D OUTPUT -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT + # + # log IPsec host connection teardown + if [ $VPN_LOGGING ] + then + if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ] + then + logger -t $TAG -p $FAC_PRIO -- \ + "- $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME" + else + logger -t $TAG -p $FAC_PRIO -- \ + "- $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME" + fi + fi + ;; +up-client:) + # connection to my client subnet coming up + # If you are doing a custom version, firewall commands go here. + if [ -n "$PLUTO_MARK_IN" ] + then + iptables -t mangle -A PREROUTING $SET_MARK + fi + if [ "$PLUTO_PEER_CLIENT" != "$PLUTO_MY_SOURCEIP/32" ] + then + iptables -I FORWARD 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_MY_CLIENT $S_MY_PORT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT $IPSEC_POLICY_OUT -j ACCEPT + iptables -I FORWARD 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_MY_CLIENT $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT + fi + # + # a virtual IP requires an INPUT and OUTPUT rule on the host + # or sometimes host access via the internal IP is needed + if [ -n "$PLUTO_MY_SOURCEIP" -o -n "$PLUTO_HOST_ACCESS" ] + then + iptables -I INPUT 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_MY_CLIENT $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT + iptables -I OUTPUT 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_MY_CLIENT $S_MY_PORT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT $IPSEC_POLICY_OUT -j ACCEPT + fi + # + # log IPsec client connection setup + if [ $VPN_LOGGING ] + then + if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ] + then + logger -t $TAG -p $FAC_PRIO \ + "+ $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT" + else + logger -t $TAG -p $FAC_PRIO \ + "+ $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT" + fi + fi + ;; +down-client:) + # connection to my client subnet going down + # If you are doing a custom version, firewall commands go here. + if [ -n "$PLUTO_MARK_IN" ] + then + iptables -t mangle -D PREROUTING $SET_MARK + fi + if [ "$PLUTO_PEER_CLIENT" != "$PLUTO_MY_SOURCEIP/32" ] + then + iptables -D FORWARD -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_MY_CLIENT $S_MY_PORT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT \ + $IPSEC_POLICY_OUT -j ACCEPT + iptables -D FORWARD -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_MY_CLIENT $D_MY_PORT \ + $IPSEC_POLICY_IN -j ACCEPT + fi + # + # a virtual IP requires an INPUT and OUTPUT rule on the host + # or sometimes host access via the internal IP is needed + if [ -n "$PLUTO_MY_SOURCEIP" -o -n "$PLUTO_HOST_ACCESS" ] + then + iptables -D INPUT -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \ + -s $PLUTO_PEER_CLIENT $S_PEER_PORT \ + -d $PLUTO_MY_CLIENT $D_MY_PORT \ + $IPSEC_POLICY_IN -j ACCEPT + iptables -D OUTPUT -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \ + -s $PLUTO_MY_CLIENT $S_MY_PORT \ + -d $PLUTO_PEER_CLIENT $D_PEER_PORT \ + $IPSEC_POLICY_OUT -j ACCEPT + fi + # + # log IPsec client connection teardown + if [ $VPN_LOGGING ] + then + if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ] + then + logger -t $TAG -p $FAC_PRIO -- \ + "- $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT" + else + logger -t $TAG -p $FAC_PRIO -- \ + "- $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT" + fi + fi + ;; +*) echo "$0: unknown verb \`$PLUTO_VERB' or parameter \`$1'" >&2 + exit 1 + ;; +esac diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/sun/etc/strongswan.conf b/testing/tests/ikev2/rw-mark-in-out/hosts/sun/etc/strongswan.conf index 339b56987..339b56987 100644 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/sun/etc/strongswan.conf +++ b/testing/tests/ikev2/rw-mark-in-out/hosts/sun/etc/strongswan.conf diff --git a/testing/tests/ikev2/rw-mark-in-out/hosts/venus/etc/init.d/iptables b/testing/tests/ikev2/rw-mark-in-out/hosts/venus/etc/init.d/iptables new file mode 100755 index 000000000..5594bbf52 --- /dev/null +++ b/testing/tests/ikev2/rw-mark-in-out/hosts/venus/etc/init.d/iptables @@ -0,0 +1,77 @@ +#!/sbin/runscript +# Copyright 1999-2004 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +opts="start stop reload" + +depend() { + before net + need logger +} + +start() { + ebegin "Starting firewall" + + # default policy is DROP + /sbin/iptables -P INPUT DROP + /sbin/iptables -P OUTPUT DROP + /sbin/iptables -P FORWARD DROP + + # allow ESP + iptables -A INPUT -i eth0 -p 50 -j ACCEPT + iptables -A OUTPUT -o eth0 -p 50 -j ACCEPT + + # allow IKE + iptables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT + iptables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT + + # allow MOBIKE + iptables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT + iptables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT + + # allow crl fetch from winnetou + iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT + iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT + + # allow ssh + iptables -A INPUT -p tcp --dport 22 -j ACCEPT + iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT + + eend $? +} + +stop() { + ebegin "Stopping firewall" + for a in `cat /proc/net/ip_tables_names`; do + /sbin/iptables -F -t $a + /sbin/iptables -X -t $a + + if [ $a == nat ]; then + /sbin/iptables -t nat -P PREROUTING ACCEPT + /sbin/iptables -t nat -P POSTROUTING ACCEPT + /sbin/iptables -t nat -P OUTPUT ACCEPT + elif [ $a == mangle ]; then + /sbin/iptables -t mangle -P PREROUTING ACCEPT + /sbin/iptables -t mangle -P INPUT ACCEPT + /sbin/iptables -t mangle -P FORWARD ACCEPT + /sbin/iptables -t mangle -P OUTPUT ACCEPT + /sbin/iptables -t mangle -P POSTROUTING ACCEPT + elif [ $a == filter ]; then + /sbin/iptables -t filter -P INPUT ACCEPT + /sbin/iptables -t filter -P FORWARD ACCEPT + /sbin/iptables -t filter -P OUTPUT ACCEPT + fi + done + eend $? +} + +reload() { + ebegin "Flushing firewall" + for a in `cat /proc/net/ip_tables_names`; do + /sbin/iptables -F -t $a + /sbin/iptables -X -t $a + done; + eend $? + start +} + diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/venus/etc/ipsec.conf b/testing/tests/ikev2/rw-mark-in-out/hosts/venus/etc/ipsec.conf index c82c3e978..4af93df8d 100755 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/venus/etc/ipsec.conf +++ b/testing/tests/ikev2/rw-mark-in-out/hosts/venus/etc/ipsec.conf @@ -12,7 +12,7 @@ conn %default keyingtries=1 keyexchange=ikev2 -conn nat-t +conn home left=%defaultroute leftsubnet=10.1.0.0/25 leftcert=venusCert.pem diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/venus/etc/strongswan.conf b/testing/tests/ikev2/rw-mark-in-out/hosts/venus/etc/strongswan.conf index 339b56987..339b56987 100644 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/hosts/venus/etc/strongswan.conf +++ b/testing/tests/ikev2/rw-mark-in-out/hosts/venus/etc/strongswan.conf diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/posttest.dat b/testing/tests/ikev2/rw-mark-in-out/posttest.dat index df49eb777..baa9bbdb3 100644 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/posttest.dat +++ b/testing/tests/ikev2/rw-mark-in-out/posttest.dat @@ -1,9 +1,11 @@ +sun::iptables -t mangle -v -n -L PREROUTING sun::ipsec stop alice::ipsec stop venus::ipsec stop alice::/etc/init.d/iptables stop 2> /dev/null venus::/etc/init.d/iptables stop 2> /dev/null sun::/etc/init.d/iptables stop 2> /dev/null -moon::iptables -t nat -F -moon::conntrack -F +sun::ip route del 10.1.0.0/16 via PH_IP_MOON sun::conntrack -F +moon::iptables -t -nat -F +moon::conntrack -F diff --git a/testing/tests/ikev2/rw-mark-in-out/pretest.dat b/testing/tests/ikev2/rw-mark-in-out/pretest.dat new file mode 100644 index 000000000..3d9a5f340 --- /dev/null +++ b/testing/tests/ikev2/rw-mark-in-out/pretest.dat @@ -0,0 +1,18 @@ +alice::/etc/init.d/iptables start 2> /dev/null +venus::/etc/init.d/iptables start 2> /dev/null +sun::/etc/init.d/iptables start 2> /dev/null +moon::echo 1 > /proc/sys/net/ipv4/ip_forward +moon::iptables -t nat -A POSTROUTING -o eth0 -s 10.1.0.0/16 -p tcp -j SNAT --to PH_IP_MOON +sun::ip route add 10.1.0.0/16 via PH_IP_MOON +sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 10 -j SNAT --to 10.3.0.10 +sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 20 -j SNAT --to 10.3.0.20 +sun::iptables -t mangle -A PREROUTING -d 10.3.0.10 -j MARK --set-mark 11 +sun::iptables -t mangle -A PREROUTING -d 10.3.0.20 -j MARK --set-mark 21 +alice::ipsec start +venus::ipsec start +sun::ipsec start +alice::sleep 2 +alice::ipsec up home +venus::sleep 2 +venus::ipsec up home +venus::sleep 2 diff --git a/testing/tests/ikev2/nat-two-rw-mark-in-out/test.conf b/testing/tests/ikev2/rw-mark-in-out/test.conf index ae3c190b8..ae3c190b8 100644 --- a/testing/tests/ikev2/nat-two-rw-mark-in-out/test.conf +++ b/testing/tests/ikev2/rw-mark-in-out/test.conf |