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testing: Add ikev2/net2net-route-narrow scenario

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This commit is contained in:
Tobias Brunner 2025-03-24 14:02:25 +01:00
parent 6c7c539eaf
commit 8cb5918b0c
9 changed files with 165 additions and 0 deletions
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11
testing/tests/ikev2/net2net-route-narrow/description.txt Executable file
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A trap policy on gateway <b>sun</b> will trigger SAs to gateway <b>moon</b>
that connec the subnets behind the two gateways. Based on the received traffic
selector from the triggering packet, gateway <b>moon</b> narrows down the
traffic selectors to one of two options.
Subsequent pings issued by client <b>bob</b> behind gateway <b>sun</b> to
<b>alice</b> and <b>venus</b> located behind gateway <b>moon</b> trigger the
trap policy and lead to the automatic establishment of the subnet-to-subnet
tunnels.
<p/>
The updown script automatically inserts iptables-based firewall rules
that let pass the tunneled traffic.

21
testing/tests/ikev2/net2net-route-narrow/evaltest.dat Executable file
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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
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
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
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
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
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
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
bob::ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_.eq=1::YES
bob::ping -c 1 PH_IP_VENUS::64 bytes from PH_IP_VENUS: icmp_.eq=1::YES
sun::swanctl --rekey --child net-net
sun::sleep 2
bob::ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_.eq=1::YES
bob::ping -c 1 PH_IP_VENUS::64 bytes from PH_IP_VENUS: icmp_.eq=1::YES
sun::swanctl --rekey --reauth --ike gw-gw
sun::sleep 1
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
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
bob::ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_.eq=1::YES
bob::ping -c 1 PH_IP_VENUS::64 bytes from PH_IP_VENUS: icmp_.eq=1::YES
moon::tcpdump::IP moon.strongswan.org > sun.strongswan.org: ESP::YES
moon::tcpdump::IP sun.strongswan.org > moon.strongswan.org: ESP::YES

14
testing/tests/ikev2/net2net-route-narrow/hosts/moon/etc/strongswan.conf Executable file
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# /etc/strongswan.conf - strongSwan configuration file
swanctl {
load = pem pkcs1 revocation constraints pubkey openssl random
}
charon-systemd {
load = random nonce openssl pem pkcs1 revocation curl kernel-netlink socket-default updown vici
syslog {
daemon {
cfg = 2
}
}
}

34
testing/tests/ikev2/net2net-route-narrow/hosts/moon/etc/swanctl/swanctl.conf Executable file
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connections {
gw-gw {
local_addrs = 192.168.0.1
remote_addrs = 192.168.0.2
local {
auth = pubkey
certs = moonCert.pem
id = moon.strongswan.org
}
remote {
auth = pubkey
id = sun.strongswan.org
}
children {
net-1 {
local_ts = 10.1.0.0/28
remote_ts = 10.2.0.0/16
start_action = none
updown = /usr/local/libexec/ipsec/_updown iptables
esp_proposals = aes128gcm128-x25519
}
net-2 : connections.gw-gw.children.net-1 {
local_ts = 10.1.0.16/28
esp_proposals = aes128-sha256-x25519
}
}
version = 2
mobike = no
proposals = aes128-sha256-x25519
}
}

16
testing/tests/ikev2/net2net-route-narrow/hosts/sun/etc/strongswan.conf Executable file
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# /etc/strongswan.conf - strongSwan configuration file
swanctl {
load = pem pkcs1 revocation constraints pubkey openssl random
}
charon-systemd {
load = random nonce openssl pem pkcs1 revocation kernel-netlink socket-default updown vici
# delete rekeyed CHILD_SAs quickly so we can reauthenticate the IKE_SA
delete_rekeyed_delay = 1
syslog {
daemon {
cfg = 2
}
}
}

30
testing/tests/ikev2/net2net-route-narrow/hosts/sun/etc/swanctl/swanctl.conf Executable file
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connections {
gw-gw {
local_addrs = 192.168.0.2
remote_addrs = 192.168.0.1
local {
auth = pubkey
certs = sunCert.pem
id = sun.strongswan.org
}
remote {
auth = pubkey
id = moon.strongswan.org
}
children {
net-net {
local_ts = 10.2.0.0/16
remote_ts = 10.1.0.0/16
start_action = trap
updown = /usr/local/libexec/ipsec/_updown iptables
esp_proposals = aes128gcm128-x25519,aes128-sha256-x25519
}
}
version = 2
mobike = no
proposals = aes128-sha256-x25519
}
}

5
testing/tests/ikev2/net2net-route-narrow/posttest.dat Executable file
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sun::swanctl --terminate --ike gw-gw 2> /dev/null
sun::systemctl stop strongswan
moon::systemctl stop strongswan
sun::iptables-restore < /etc/iptables.flush
moon::iptables-restore < /etc/iptables.flush

9
testing/tests/ikev2/net2net-route-narrow/pretest.dat Executable file
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sun::iptables-restore < /etc/iptables.rules
moon::iptables-restore < /etc/iptables.rules
sun::systemctl start strongswan
moon::systemctl start strongswan
sun::expect-connection gw-gw
moon::expect-connection gw-gw
bob::ping -c 3 -W 1 -i 0.2 PH_IP_ALICE
bob::sleep 0.5
bob::ping -c 3 -W 1 -i 0.2 PH_IP_VENUS

25
testing/tests/ikev2/net2net-route-narrow/test.conf Executable file
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#!/bin/bash
#
# This configuration file provides information on the
# guest instances used for this test
# All guest instances that are required for this test
#
VIRTHOSTS="alice venus moon winnetou sun bob"
# Corresponding block diagram
#
DIAGRAM="a-v-m-w-s-b.png"
# Guest instances on which tcpdump is to be started
#
TCPDUMPHOSTS="moon"
# Guest instances on which IPsec is started
# Used for IPsec logging purposes
#
IPSECHOSTS="moon sun"
# charon controlled by swanctl
#
SWANCTL=1