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import socket
import unittest
from scapy.layers.ipsec import AH
from framework import VppTestRunner
from template_ipsec import TemplateIpsec, IpsecTraTests, IpsecTunTests
from template_ipsec import IpsecTcpTests
class TemplateIpsecAh(TemplateIpsec):
"""
Basic test for IPSEC using AH transport and Tunnel mode
Below 4 cases are covered as part of this test
1) ipsec ah v4 transport basic test - IPv4 Transport mode
scenario using HMAC-SHA1-96 intergrity algo
2) ipsec ah v4 transport burst test
Above test for 257 pkts
3) ipsec ah 4o4 tunnel basic test - IPv4 Tunnel mode
scenario using HMAC-SHA1-96 intergrity algo
4) ipsec ah 4o4 tunnel burst test
Above test for 257 pkts
TRANSPORT MODE:
--- encrypt ---
|pg2| <-------> |VPP|
--- decrypt ---
TUNNEL MODE:
--- encrypt --- plain ---
|pg0| <------- |VPP| <------ |pg1|
--- --- ---
--- decrypt --- plain ---
|pg0| -------> |VPP| ------> |pg1|
--- --- ---
"""
encryption_type = AH
@classmethod
def setUpClass(cls):
super(TemplateIpsecAh, cls).setUpClass()
cls.tun_if = cls.pg0
cls.tra_if = cls.pg2
cls.logger.info(cls.vapi.ppcli("show int addr"))
cls.vapi.ipsec_spd_add_del(cls.tun_spd_id)
cls.vapi.ipsec_interface_add_del_spd(cls.tun_spd_id,
cls.tun_if.sw_if_index)
cls.vapi.ipsec_spd_add_del(cls.tra_spd_id)
cls.vapi.ipsec_interface_add_del_spd(cls.tra_spd_id,
cls.tra_if.sw_if_index)
for _, p in cls.params.items():
cls.config_ah_tra(p)
cls.logger.info(cls.vapi.ppcli("show ipsec"))
for _, p in cls.params.items():
cls.config_ah_tun(p)
cls.logger.info(cls.vapi.ppcli("show ipsec"))
for _, p in cls.params.items():
src = socket.inet_pton(p.addr_type, p.remote_tun_if_host)
cls.vapi.ip_add_del_route(src, p.addr_len,
cls.tun_if.remote_addr_n[p.addr_type],
is_ipv6=p.is_ipv6)
@classmethod
def config_ah_tun(cls, params):
addr_type = params.addr_type
is_ipv6 = params.is_ipv6
scapy_tun_sa_id = params.scapy_tun_sa_id
scapy_tun_spi = params.scapy_tun_spi
vpp_tun_sa_id = params.vpp_tun_sa_id
vpp_tun_spi = params.vpp_tun_spi
auth_algo_vpp_id = params.auth_algo_vpp_id
auth_key = params.auth_key
crypt_algo_vpp_id = params.crypt_algo_vpp_id
crypt_key = params.crypt_key
remote_tun_if_host = params.remote_tun_if_host
addr_any = params.addr_any
addr_bcast = params.addr_bcast
cls.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
auth_algo_vpp_id, auth_key,
crypt_algo_vpp_id, crypt_key,
cls.vpp_ah_protocol,
cls.tun_if.local_addr_n[addr_type],
cls.tun_if.remote_addr_n[addr_type],
is_tunnel=1, is_tunnel_ipv6=is_ipv6)
cls.vapi.ipsec_sad_add_del_entry(vpp_tun_sa_id, vpp_tun_spi,
auth_algo_vpp_id, auth_key,
crypt_algo_vpp_id, crypt_key,
cls.vpp_ah_protocol,
cls.tun_if.remote_addr_n[addr_type],
cls.tun_if.local_addr_n[addr_type],
is_tunnel=1, is_tunnel_ipv6=is_ipv6)
l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
l_startaddr, l_stopaddr, r_startaddr,
r_stopaddr, is_ipv6=is_ipv6,
protocol=socket.IPPROTO_AH)
cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
l_startaddr, l_stopaddr, r_startaddr,
r_stopaddr, is_outbound=0,
is_ipv6=is_ipv6,
protocol=socket.IPPROTO_AH)
l_startaddr = l_stopaddr = socket.inet_pton(addr_type,
remote_tun_if_host)
r_startaddr = r_stopaddr = cls.pg1.remote_addr_n[addr_type]
cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
l_startaddr, l_stopaddr, r_startaddr,
r_stopaddr, priority=10, policy=3,
is_outbound=0, is_ipv6=is_ipv6)
cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
r_startaddr, r_stopaddr, l_startaddr,
l_stopaddr, priority=10, policy=3,
is_ipv6=is_ipv6)
r_startaddr = r_stopaddr = cls.pg0.local_addr_n[addr_type]
cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
l_startaddr, l_stopaddr, r_startaddr,
r_stopaddr, priority=20, policy=3,
is_outbound=0, is_ipv6=is_ipv6)
cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
r_startaddr, r_stopaddr, l_startaddr,
l_stopaddr, priority=20, policy=3,
is_ipv6=is_ipv6)
@classmethod
def config_ah_tra(cls, params):
addr_type = params.addr_type
is_ipv6 = params.is_ipv6
scapy_tra_sa_id = params.scapy_tra_sa_id
scapy_tra_spi = params.scapy_tra_spi
vpp_tra_sa_id = params.vpp_tra_sa_id
vpp_tra_spi = params.vpp_tra_spi
auth_algo_vpp_id = params.auth_algo_vpp_id
auth_key = params.auth_key
crypt_algo_vpp_id = params.crypt_algo_vpp_id
crypt_key = params.crypt_key
addr_any = params.addr_any
addr_bcast = params.addr_bcast
cls.vapi.ipsec_sad_add_del_entry(scapy_tra_sa_id, scapy_tra_spi,
auth_algo_vpp_id, auth_key,
crypt_algo_vpp_id, crypt_key,
cls.vpp_ah_protocol, is_tunnel=0,
is_tunnel_ipv6=0)
cls.vapi.ipsec_sad_add_del_entry(vpp_tra_sa_id, vpp_tra_spi,
auth_algo_vpp_id, auth_key,
crypt_algo_vpp_id, crypt_key,
cls.vpp_ah_protocol, is_tunnel=0,
is_tunnel_ipv6=0)
l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, vpp_tra_sa_id,
l_startaddr, l_stopaddr, r_startaddr,
r_stopaddr, is_ipv6=is_ipv6,
protocol=socket.IPPROTO_AH)
cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, scapy_tra_sa_id,
l_startaddr, l_stopaddr, r_startaddr,
r_stopaddr, is_outbound=0,
is_ipv6=is_ipv6,
protocol=socket.IPPROTO_AH)
l_startaddr = l_stopaddr = cls.tra_if.local_addr_n[addr_type]
r_startaddr = r_stopaddr = cls.tra_if.remote_addr_n[addr_type]
cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, vpp_tra_sa_id,
l_startaddr, l_stopaddr, r_startaddr,
r_stopaddr, priority=10, policy=3,
is_outbound=0, is_ipv6=is_ipv6)
cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, scapy_tra_sa_id,
l_startaddr, l_stopaddr, r_startaddr,
r_stopaddr, priority=10,
policy=3, is_ipv6=is_ipv6)
def tearDown(self):
super(TemplateIpsecAh, self).tearDown()
if not self.vpp_dead:
self.vapi.cli("show hardware")
class TestIpsecAh1(TemplateIpsecAh, IpsecTraTests, IpsecTunTests):
""" Ipsec AH - TUN & TRA tests """
pass
class TestIpsecAh2(TemplateIpsecAh, IpsecTcpTests):
""" Ipsec AH - TCP tests """
pass
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
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