PRE-TEST

moon# systemctl start strongswan

carol# systemctl start strongswan

moon# expect-connection finance

moon# expect-connection sales

carol# expect-connection home

carol# swanctl --initiate --child home 2> /dev/null
[IKE] initiating IKE_SA home[1] to 192.168.0.1
[ENC] generating IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) N(HASH_ALG) N(REDIR_SUP) ]
[NET] sending packet: from 192.168.0.100[500] to 192.168.0.1[500] (240 bytes)
[NET] received packet: from 192.168.0.1[500] to 192.168.0.100[500] (273 bytes)
[ENC] parsed IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) CERTREQ N(FRAG_SUP) N(HASH_ALG) N(CHDLESS_SUP) N(MULT_AUTH) ]
[CFG] selected proposal: IKE:AES_CBC_128/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/CURVE_25519
[IKE] received cert request for "C=CH, O=strongSwan Project, CN=strongSwan Root CA"
[IKE] sending cert request for "C=CH, O=strongSwan Project, CN=strongSwan Root CA"
[IKE] authentication of 'carol@strongswan.org' (myself) with RSA_EMSA_PKCS1_SHA2_256 successful
[IKE] sending end entity cert "C=CH, O=strongSwan Project, OU=Research, CN=carol@strongswan.org"
[IKE] sending attribute certificate issued by "C=CH, O=strongSwan Project, CN=strongSwan Attribute Authority"
[IKE] establishing CHILD_SA home{1}
[ENC] generating IKE_AUTH request 1 [ IDi CERT CERT N(INIT_CONTACT) CERTREQ IDr AUTH SA TSi TSr N(MOBIKE_SUP) N(ADD_6_ADDR) N(MULT_AUTH) N(EAP_ONLY) N(MSG_ID_SYN_SUP) ]
[ENC] splitting IKE message (2800 bytes) into 3 fragments
[ENC] generating IKE_AUTH request 1 [ EF(1/3) ]
[ENC] generating IKE_AUTH request 1 [ EF(2/3) ]
[ENC] generating IKE_AUTH request 1 [ EF(3/3) ]
[NET] sending packet: from 192.168.0.100[4500] to 192.168.0.1[4500] (1236 bytes)
[NET] sending packet: from 192.168.0.100[4500] to 192.168.0.1[4500] (1236 bytes)
[NET] sending packet: from 192.168.0.100[4500] to 192.168.0.1[4500] (484 bytes)
[NET] received packet: from 192.168.0.1[4500] to 192.168.0.100[4500] (1236 bytes)
[ENC] parsed IKE_AUTH response 1 [ EF(1/2) ]
[ENC] received fragment #1 of 2, waiting for complete IKE message
[NET] received packet: from 192.168.0.1[4500] to 192.168.0.100[4500] (660 bytes)
[ENC] parsed IKE_AUTH response 1 [ EF(2/2) ]
[ENC] received fragment #2 of 2, reassembled fragmented IKE message (1824 bytes)
[ENC] parsed IKE_AUTH response 1 [ IDr CERT AUTH SA TSi TSr N(MOBIKE_SUP) N(ADD_4_ADDR) N(ADD_6_ADDR) N(ADD_6_ADDR) ]
[IKE] received end entity cert "C=CH, O=strongSwan Project, CN=moon.strongswan.org"
[CFG]   using certificate "C=CH, O=strongSwan Project, CN=moon.strongswan.org"
[CFG]   using trusted ca certificate "C=CH, O=strongSwan Project, CN=strongSwan Root CA"
[CFG]   reached self-signed root ca with a path length of 0
[CFG] checking certificate status of "C=CH, O=strongSwan Project, CN=moon.strongswan.org"
[CFG]   fetching crl from 'http://crl.strongswan.org/strongswan.crl' ...
[CFG]   using trusted certificate "C=CH, O=strongSwan Project, CN=strongSwan Root CA"
[CFG]   crl correctly signed by "C=CH, O=strongSwan Project, CN=strongSwan Root CA"
[CFG]   crl is valid: until Mar 25 18:47:43 2025
[CFG] certificate status is good
[IKE] authentication of 'moon.strongswan.org' with RSA_EMSA_PKCS1_SHA2_256 successful
[IKE] peer supports MOBIKE
[IKE] IKE_SA home[1] established between 192.168.0.100[carol@strongswan.org]...192.168.0.1[moon.strongswan.org]
[IKE] scheduling rekeying in 12999s
[IKE] maximum IKE_SA lifetime 14439s
[CFG] selected proposal: ESP:AES_GCM_16_128/NO_EXT_SEQ
[IKE] CHILD_SA home{1} established with SPIs cbb7aa62_i c480e68b_o and TS 192.168.0.100/32 === 10.1.0.20/32
initiate completed successfully


TEST

carol# swanctl --list-sas --raw 2> /dev/null | grep 'home.*version=2 state=ESTABLISHED local-host=192.168.0.100 local-port=4500 local-id=carol@strongswan.org remote-host=192.168.0.1 remote-port=4500 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.*home.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[192.168.0.100/32] remote-ts=\[10.1.0.20/32]' [YES]
list-sa event {home {uniqueid=1 version=2 state=ESTABLISHED local-host=192.168.0.100 local-port=4500 local-id=carol@strongswan.org remote-host=192.168.0.1 remote-port=4500 remote-id=moon.strongswan.org initiator=yes initiator-spi=2ea5438a69bb654b responder-spi=5df55f13d3c8a85c encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519 established=0 rekey-time=12999 child-sas {home-1 {name=home uniqueid=1 reqid=1 state=INSTALLED mode=TUNNEL protocol=ESP spi-in=cbb7aa62 spi-out=c480e68b encr-alg=AES_GCM_16 encr-keysize=128 bytes-in=0 packets-in=0 bytes-out=0 packets-out=0 rekey-time=3287 life-time=3960 install-time=0 local-ts=[192.168.0.100/32] remote-ts=[10.1.0.20/32]}}}}

moon# swanctl --list-sas --raw 2> /dev/null | grep 'sales.*version=2 state=ESTABLISHED local-host=192.168.0.1 local-port=4500 local-id=moon.strongswan.org remote-host=192.168.0.100 remote-port=4500 remote-id=carol@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.*venus.*reqid=1 state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.1.0.20/32] remote-ts=\[192.168.0.100/32]' [YES]
list-sa event {sales {uniqueid=1 version=2 state=ESTABLISHED local-host=192.168.0.1 local-port=4500 local-id=moon.strongswan.org remote-host=192.168.0.100 remote-port=4500 remote-id=carol@strongswan.org initiator-spi=2ea5438a69bb654b responder-spi=5df55f13d3c8a85c encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519 established=0 rekey-time=13659 child-sas {venus-1 {name=venus uniqueid=1 reqid=1 state=INSTALLED mode=TUNNEL protocol=ESP spi-in=c480e68b spi-out=cbb7aa62 encr-alg=AES_GCM_16 encr-keysize=128 bytes-in=0 packets-in=0 bytes-out=0 packets-out=0 rekey-time=3397 life-time=3960 install-time=0 local-ts=[10.1.0.20/32] remote-ts=[192.168.0.100/32]}}}}

moon# cat /var/log/daemon.log | grep 'constraint check failed: group membership to 'finance' required' [YES]
Mar 10 19:06:09 moon charon-systemd: 01[CFG] constraint check failed: group membership to 'finance' required

carol# ping -c 1 -W 1 10.1.0.10 | grep '64 bytes from 10.1.0.10: icmp_.eq=1' [NO]

carol# ping -c 1 10.1.0.20 | grep '64 bytes from 10.1.0.20: icmp_.eq=1' [YES]
64 bytes from 10.1.0.20: icmp_seq=1 ttl=63 time=1.42 ms

moon# killall tcpdump

moon# cat /tmp/tcpdump.log | grep 'IP carol.strongswan.org > moon.strongswan.org: ESP' [YES]
19:06:09.856118 IP carol.strongswan.org > moon.strongswan.org: ESP(spi=0xc480e68b,seq=0x1), length 120

moon# cat /tmp/tcpdump.log | grep 'IP moon.strongswan.org > carol.strongswan.org: ESP' [YES]
19:06:09.857011 IP moon.strongswan.org > carol.strongswan.org: ESP(spi=0xcbb7aa62,seq=0x1), length 120


POST-TEST

carol# systemctl stop strongswan

moon# systemctl stop strongswan

moon# cd /etc/swanctl; rm rsa/* x509aa/*

carol# rm /etc/swanctl/x509ac/*