testing: Add ikev2/net2net-route-narrow scenario
This commit is contained in:
Tobias Brunner
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A trap policy on gateway <b>sun</b> will trigger SAs to gateway <b>moon</b>
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that connec the subnets behind the two gateways. Based on the received traffic
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selector from the triggering packet, gateway <b>moon</b> narrows down the
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traffic selectors to one of two options.
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Subsequent pings issued by client <b>bob</b> behind gateway <b>sun</b> to
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<b>alice</b> and <b>venus</b> located behind gateway <b>moon</b> trigger the
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trap policy and lead to the automatic establishment of the subnet-to-subnet
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tunnels.
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<p/>
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The updown script automatically inserts iptables-based firewall rules
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that let pass the tunneled traffic.
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sun::swanctl --list-pols --raw 2> /dev/null::net-net.*mode=TUNNEL local-ts=\[10.2.0.0/16] remote-ts=\[10.1.0.0/16]::YES
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sun::cat /var/log/daemon.log::creating acquire job for policy 10.2.0.10/32\[icmp/8] === 10.1.0.10/32\[icmp/8]::YES
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sun::cat /var/log/daemon.log::creating acquire job for policy 10.2.0.10/32\[icmp/8] === 10.1.0.20/32\[icmp/8]::YES
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sun:: swanctl --list-sas --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.2 local-port=500 local-id=sun.strongswan.org remote-host=192.168.0.1 remote-port=500 remote-id=moon.strongswan.org initiator=yes.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519.*child-sas.*net-net.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.2.0.0/16] remote-ts=\[10.1.0.0/28]::YES
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sun:: swanctl --list-sas --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.2 local-port=500 local-id=sun.strongswan.org remote-host=192.168.0.1 remote-port=500 remote-id=moon.strongswan.org initiator=yes.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519.*child-sas.*net-net.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128.*local-ts=\[10.2.0.0/16] remote-ts=\[10.1.0.16/28]::YES
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moon::swanctl --list-sas --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.1 local-port=500 local-id=moon.strongswan.org remote-host=192.168.0.2 remote-port=500 remote-id=sun.strongswan.org.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519.*child-sas.*net-1.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.1.0.0/28] remote-ts=\[10.2.0.0/16]::YES
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moon::swanctl --list-sas --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.1 local-port=500 local-id=moon.strongswan.org remote-host=192.168.0.2 remote-port=500 remote-id=sun.strongswan.org.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519.*child-sas.*net-2.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128.*local-ts=\[10.1.0.16/28] remote-ts=\[10.2.0.0/16]::YES
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bob::ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_.eq=1::YES
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bob::ping -c 1 PH_IP_VENUS::64 bytes from PH_IP_VENUS: icmp_.eq=1::YES
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sun::swanctl --rekey --child net-net
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sun::sleep 2
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bob::ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_.eq=1::YES
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bob::ping -c 1 PH_IP_VENUS::64 bytes from PH_IP_VENUS: icmp_.eq=1::YES
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sun::swanctl --rekey --reauth --ike gw-gw
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sun::sleep 1
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sun::swanctl --list-sas --ike-id 2 --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.2 local-port=500 local-id=sun.strongswan.org remote-host=192.168.0.1 remote-port=500 remote-id=moon.strongswan.org initiator=yes.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519.*child-sas.*net-net.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.2.0.0/16] remote-ts=\[10.1.0.0/28]::YES
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sun::swanctl --list-sas --ike-id 2 --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.2 local-port=500 local-id=sun.strongswan.org remote-host=192.168.0.1 remote-port=500 remote-id=moon.strongswan.org initiator=yes.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519.*child-sas.*net-net.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128.*local-ts=\[10.2.0.0/16] remote-ts=\[10.1.0.16/28]::YES
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bob::ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_.eq=1::YES
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bob::ping -c 1 PH_IP_VENUS::64 bytes from PH_IP_VENUS: icmp_.eq=1::YES
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moon::tcpdump::IP moon.strongswan.org > sun.strongswan.org: ESP::YES
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moon::tcpdump::IP sun.strongswan.org > moon.strongswan.org: ESP::YES
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# /etc/strongswan.conf - strongSwan configuration file
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swanctl {
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load = pem pkcs1 revocation constraints pubkey openssl random
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}
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charon-systemd {
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load = random nonce openssl pem pkcs1 revocation curl kernel-netlink socket-default updown vici
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syslog {
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daemon {
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cfg = 2
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}
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}
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}
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connections {
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gw-gw {
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local_addrs = 192.168.0.1
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remote_addrs = 192.168.0.2
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local {
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auth = pubkey
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certs = moonCert.pem
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id = moon.strongswan.org
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}
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remote {
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auth = pubkey
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id = sun.strongswan.org
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}
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children {
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net-1 {
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local_ts = 10.1.0.0/28
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remote_ts = 10.2.0.0/16
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start_action = none
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updown = /usr/local/libexec/ipsec/_updown iptables
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esp_proposals = aes128gcm128-x25519
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}
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net-2 : connections.gw-gw.children.net-1 {
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local_ts = 10.1.0.16/28
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esp_proposals = aes128-sha256-x25519
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}
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}
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version = 2
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mobike = no
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proposals = aes128-sha256-x25519
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}
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}
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# /etc/strongswan.conf - strongSwan configuration file
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swanctl {
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load = pem pkcs1 revocation constraints pubkey openssl random
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}
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charon-systemd {
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load = random nonce openssl pem pkcs1 revocation kernel-netlink socket-default updown vici
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# delete rekeyed CHILD_SAs quickly so we can reauthenticate the IKE_SA
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delete_rekeyed_delay = 1
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syslog {
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daemon {
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cfg = 2
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}
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}
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}
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connections {
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gw-gw {
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local_addrs = 192.168.0.2
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remote_addrs = 192.168.0.1
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local {
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auth = pubkey
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certs = sunCert.pem
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id = sun.strongswan.org
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}
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remote {
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auth = pubkey
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id = moon.strongswan.org
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}
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children {
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net-net {
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local_ts = 10.2.0.0/16
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remote_ts = 10.1.0.0/16
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start_action = trap
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updown = /usr/local/libexec/ipsec/_updown iptables
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esp_proposals = aes128gcm128-x25519,aes128-sha256-x25519
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}
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}
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version = 2
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mobike = no
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proposals = aes128-sha256-x25519
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}
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}
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sun::swanctl --terminate --ike gw-gw 2> /dev/null
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sun::systemctl stop strongswan
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moon::systemctl stop strongswan
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sun::iptables-restore < /etc/iptables.flush
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moon::iptables-restore < /etc/iptables.flush
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sun::iptables-restore < /etc/iptables.rules
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moon::iptables-restore < /etc/iptables.rules
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sun::systemctl start strongswan
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moon::systemctl start strongswan
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sun::expect-connection gw-gw
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moon::expect-connection gw-gw
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bob::ping -c 3 -W 1 -i 0.2 PH_IP_ALICE
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bob::sleep 0.5
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bob::ping -c 3 -W 1 -i 0.2 PH_IP_VENUS
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+25
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#!/bin/bash
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#
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# This configuration file provides information on the
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# guest instances used for this test
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# All guest instances that are required for this test
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#
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VIRTHOSTS="alice venus moon winnetou sun bob"
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# Corresponding block diagram
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#
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DIAGRAM="a-v-m-w-s-b.png"
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# Guest instances on which tcpdump is to be started
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#
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TCPDUMPHOSTS="moon"
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# Guest instances on which IPsec is started
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# Used for IPsec logging purposes
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#
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IPSECHOSTS="moon sun"
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# charon controlled by swanctl
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#
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SWANCTL=1
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