from scapy.layers.ipsec import SecurityAssociation, ESP
from scapy.layers.l2 import Ether
from scapy.packet import raw, Raw
-from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest, IPv6ExtHdrHopByHop, \
- IPv6ExtHdrFragment, IPv6ExtHdrDestOpt
+from scapy.layers.inet6 import (
+ IPv6,
+ ICMPv6EchoRequest,
+ IPv6ExtHdrHopByHop,
+ IPv6ExtHdrFragment,
+ IPv6ExtHdrDestOpt,
+)
from framework import VppTestCase, VppTestRunner
from util import ppp, reassemble4, fragment_rfc791, fragment_rfc8200
from vpp_papi import VppEnum
+from vpp_ipsec import VppIpsecSpd, VppIpsecSpdEntry, VppIpsecSpdItfBinding
+from ipaddress import ip_address
+from re import search
+from os import popen
-class IPsecIPv4Params(object):
+
+class IPsecIPv4Params:
addr_type = socket.AF_INET
addr_any = "0.0.0.0"
is_ipv6 = 0
def __init__(self):
- self.remote_tun_if_host = '1.1.1.1'
- self.remote_tun_if_host6 = '1111::1'
+ self.remote_tun_if_host = "1.1.1.1"
+ self.remote_tun_if_host6 = "1111::1"
self.scapy_tun_sa_id = 100
- self.scapy_tun_spi = 1001
+ self.scapy_tun_spi = 1000
self.vpp_tun_sa_id = 200
- self.vpp_tun_spi = 1000
+ self.vpp_tun_spi = 2000
self.scapy_tra_sa_id = 300
- self.scapy_tra_spi = 2001
+ self.scapy_tra_spi = 3000
self.vpp_tra_sa_id = 400
- self.vpp_tra_spi = 2000
-
- self.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t.
- IPSEC_API_INTEG_ALG_SHA1_96)
- self.auth_algo = 'HMAC-SHA1-96' # scapy name
- self.auth_key = b'C91KUR9GYMm5GfkEvNjX'
+ self.vpp_tra_spi = 4000
- self.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t.
- IPSEC_API_CRYPTO_ALG_AES_CBC_128)
- self.crypt_algo = 'AES-CBC' # scapy name
- self.crypt_key = b'JPjyOWBeVEQiMe7h'
+ self.outer_hop_limit = 64
+ self.inner_hop_limit = 255
+ self.outer_flow_label = 0
+ self.inner_flow_label = 0x12345
+
+ self.auth_algo_vpp_id = (
+ VppEnum.vl_api_ipsec_integ_alg_t.IPSEC_API_INTEG_ALG_SHA1_96
+ )
+ self.auth_algo = "HMAC-SHA1-96" # scapy name
+ self.auth_key = b"C91KUR9GYMm5GfkEvNjX"
+
+ self.crypt_algo_vpp_id = (
+ VppEnum.vl_api_ipsec_crypto_alg_t.IPSEC_API_CRYPTO_ALG_AES_CBC_128
+ )
+ self.crypt_algo = "AES-CBC" # scapy name
+ self.crypt_key = b"JPjyOWBeVEQiMe7h"
self.salt = 0
self.flags = 0
self.nat_header = None
- self.tun_flags = (VppEnum.vl_api_tunnel_encap_decap_flags_t.
- TUNNEL_API_ENCAP_DECAP_FLAG_NONE)
+ self.tun_flags = (
+ VppEnum.vl_api_tunnel_encap_decap_flags_t.TUNNEL_API_ENCAP_DECAP_FLAG_NONE
+ )
self.dscp = 0
+ self.async_mode = False
-class IPsecIPv6Params(object):
+class IPsecIPv6Params:
addr_type = socket.AF_INET6
addr_any = "0::0"
is_ipv6 = 1
def __init__(self):
- self.remote_tun_if_host = '1111:1111:1111:1111:1111:1111:1111:1111'
- self.remote_tun_if_host4 = '1.1.1.1'
+ self.remote_tun_if_host = "1111:1111:1111:1111:1111:1111:1111:1111"
+ self.remote_tun_if_host4 = "1.1.1.1"
self.scapy_tun_sa_id = 500
self.scapy_tun_spi = 3001
self.vpp_tra_sa_id = 800
self.vpp_tra_spi = 4000
- self.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t.
- IPSEC_API_INTEG_ALG_SHA1_96)
- self.auth_algo = 'HMAC-SHA1-96' # scapy name
- self.auth_key = b'C91KUR9GYMm5GfkEvNjX'
-
- self.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t.
- IPSEC_API_CRYPTO_ALG_AES_CBC_128)
- self.crypt_algo = 'AES-CBC' # scapy name
- self.crypt_key = b'JPjyOWBeVEQiMe7h'
+ self.outer_hop_limit = 64
+ self.inner_hop_limit = 255
+ self.outer_flow_label = 0
+ self.inner_flow_label = 0x12345
+
+ self.auth_algo_vpp_id = (
+ VppEnum.vl_api_ipsec_integ_alg_t.IPSEC_API_INTEG_ALG_SHA1_96
+ )
+ self.auth_algo = "HMAC-SHA1-96" # scapy name
+ self.auth_key = b"C91KUR9GYMm5GfkEvNjX"
+
+ self.crypt_algo_vpp_id = (
+ VppEnum.vl_api_ipsec_crypto_alg_t.IPSEC_API_CRYPTO_ALG_AES_CBC_128
+ )
+ self.crypt_algo = "AES-CBC" # scapy name
+ self.crypt_key = b"JPjyOWBeVEQiMe7h"
self.salt = 0
self.flags = 0
self.nat_header = None
- self.tun_flags = (VppEnum.vl_api_tunnel_encap_decap_flags_t.
- TUNNEL_API_ENCAP_DECAP_FLAG_NONE)
+ self.tun_flags = (
+ VppEnum.vl_api_tunnel_encap_decap_flags_t.TUNNEL_API_ENCAP_DECAP_FLAG_NONE
+ )
self.dscp = 0
+ self.async_mode = False
def mk_scapy_crypt_key(p):
- if p.crypt_algo == "AES-GCM":
+ if p.crypt_algo in ("AES-GCM", "AES-CTR"):
return p.crypt_key + struct.pack("!I", p.salt)
else:
return p.crypt_key
def config_tun_params(p, encryption_type, tun_if):
ip_class_by_addr_type = {socket.AF_INET: IP, socket.AF_INET6: IPv6}
- esn_en = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.
- IPSEC_API_SAD_FLAG_USE_ESN))
+ esn_en = bool(
+ p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.IPSEC_API_SAD_FLAG_USE_ESN)
+ )
p.tun_dst = tun_if.remote_addr[p.addr_type]
p.tun_src = tun_if.local_addr[p.addr_type]
crypt_key = mk_scapy_crypt_key(p)
p.scapy_tun_sa = SecurityAssociation(
- encryption_type, spi=p.vpp_tun_spi,
+ encryption_type,
+ spi=p.vpp_tun_spi,
crypt_algo=p.crypt_algo,
crypt_key=crypt_key,
- auth_algo=p.auth_algo, auth_key=p.auth_key,
- tunnel_header=ip_class_by_addr_type[p.addr_type](
- src=p.tun_dst,
- dst=p.tun_src),
+ auth_algo=p.auth_algo,
+ auth_key=p.auth_key,
+ tunnel_header=ip_class_by_addr_type[p.addr_type](src=p.tun_dst, dst=p.tun_src),
nat_t_header=p.nat_header,
- esn_en=esn_en)
+ esn_en=esn_en,
+ )
p.vpp_tun_sa = SecurityAssociation(
- encryption_type, spi=p.scapy_tun_spi,
+ encryption_type,
+ spi=p.scapy_tun_spi,
crypt_algo=p.crypt_algo,
crypt_key=crypt_key,
- auth_algo=p.auth_algo, auth_key=p.auth_key,
- tunnel_header=ip_class_by_addr_type[p.addr_type](
- dst=p.tun_dst,
- src=p.tun_src),
+ auth_algo=p.auth_algo,
+ auth_key=p.auth_key,
+ tunnel_header=ip_class_by_addr_type[p.addr_type](dst=p.tun_dst, src=p.tun_src),
nat_t_header=p.nat_header,
- esn_en=esn_en)
+ esn_en=esn_en,
+ )
def config_tra_params(p, encryption_type):
- esn_en = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.
- IPSEC_API_SAD_FLAG_USE_ESN))
+ esn_en = bool(
+ p.flags & (VppEnum.vl_api_ipsec_sad_flags_t.IPSEC_API_SAD_FLAG_USE_ESN)
+ )
crypt_key = mk_scapy_crypt_key(p)
p.scapy_tra_sa = SecurityAssociation(
encryption_type,
auth_algo=p.auth_algo,
auth_key=p.auth_key,
nat_t_header=p.nat_header,
- esn_en=esn_en)
+ esn_en=esn_en,
+ )
p.vpp_tra_sa = SecurityAssociation(
encryption_type,
spi=p.scapy_tra_spi,
auth_algo=p.auth_algo,
auth_key=p.auth_key,
nat_t_header=p.nat_header,
- esn_en=esn_en)
+ esn_en=esn_en,
+ )
class TemplateIpsec(VppTestCase):
"""
- TRANSPORT MODE:
+ TRANSPORT MODE::
- ------ encrypt ---
- |tra_if| <-------> |VPP|
- ------ decrypt ---
+ ------ encrypt ---
+ |tra_if| <-------> |VPP|
+ ------ decrypt ---
- TUNNEL MODE:
+ TUNNEL MODE::
- ------ encrypt --- plain ---
- |tun_if| <------- |VPP| <------ |pg1|
- ------ --- ---
+ ------ encrypt --- plain ---
+ |tun_if| <------- |VPP| <------ |pg1|
+ ------ --- ---
- ------ decrypt --- plain ---
- |tun_if| -------> |VPP| ------> |pg1|
- ------ --- ---
+ ------ decrypt --- plain ---
+ |tun_if| -------> |VPP| ------> |pg1|
+ ------ --- ---
"""
+
tun_spd_id = 1
tra_spd_id = 2
def ipsec_select_backend(self):
- """ empty method to be overloaded when necessary """
+ """empty method to be overloaded when necessary"""
pass
@classmethod
super(TemplateIpsec, cls).tearDownClass()
def setup_params(self):
- if not hasattr(self, 'ipv4_params'):
+ if not hasattr(self, "ipv4_params"):
self.ipv4_params = IPsecIPv4Params()
- if not hasattr(self, 'ipv6_params'):
+ if not hasattr(self, "ipv6_params"):
self.ipv6_params = IPsecIPv6Params()
- self.params = {self.ipv4_params.addr_type: self.ipv4_params,
- self.ipv6_params.addr_type: self.ipv6_params}
+ self.params = {
+ self.ipv4_params.addr_type: self.ipv4_params,
+ self.ipv6_params.addr_type: self.ipv6_params,
+ }
def config_interfaces(self):
self.create_pg_interfaces(range(3))
self.setup_params()
- self.vpp_esp_protocol = (VppEnum.vl_api_ipsec_proto_t.
- IPSEC_API_PROTO_ESP)
- self.vpp_ah_protocol = (VppEnum.vl_api_ipsec_proto_t.
- IPSEC_API_PROTO_AH)
+ self.vpp_esp_protocol = VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_ESP
+ self.vpp_ah_protocol = VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_AH
self.config_interfaces()
def show_commands_at_teardown(self):
self.logger.info(self.vapi.cli("show hardware"))
- def gen_encrypt_pkts(self, p, sa, sw_intf, src, dst, count=1,
- payload_size=54):
- return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
- sa.encrypt(IP(src=src, dst=dst) /
- ICMP() / Raw(b'X' * payload_size))
- for i in range(count)]
-
- def gen_encrypt_pkts6(self, p, sa, sw_intf, src, dst, count=1,
- payload_size=54):
- return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
- sa.encrypt(IPv6(src=src, dst=dst) /
- ICMPv6EchoRequest(id=0, seq=1,
- data='X' * payload_size))
- for i in range(count)]
+ def gen_encrypt_pkts(self, p, sa, sw_intf, src, dst, count=1, payload_size=54):
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / sa.encrypt(IP(src=src, dst=dst) / ICMP() / Raw(b"X" * payload_size))
+ for i in range(count)
+ ]
+
+ def gen_encrypt_pkts6(self, p, sa, sw_intf, src, dst, count=1, payload_size=54):
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / sa.encrypt(
+ IPv6(src=src, dst=dst, hlim=p.inner_hop_limit, fl=p.inner_flow_label)
+ / ICMPv6EchoRequest(id=0, seq=1, data="X" * payload_size)
+ )
+ for i in range(count)
+ ]
def gen_pkts(self, sw_intf, src, dst, count=1, payload_size=54):
- return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
- IP(src=src, dst=dst) / ICMP() / Raw(b'X' * payload_size)
- for i in range(count)]
-
- def gen_pkts6(self, sw_intf, src, dst, count=1, payload_size=54):
- return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
- IPv6(src=src, dst=dst) /
- ICMPv6EchoRequest(id=0, seq=1, data='X' * payload_size)
- for i in range(count)]
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / IP(src=src, dst=dst)
+ / ICMP()
+ / Raw(b"X" * payload_size)
+ for i in range(count)
+ ]
+
+ def gen_pkts6(self, p, sw_intf, src, dst, count=1, payload_size=54):
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / IPv6(src=src, dst=dst, hlim=p.inner_hop_limit, fl=p.inner_flow_label)
+ / ICMPv6EchoRequest(id=0, seq=1, data="X" * payload_size)
+ for i in range(count)
+ ]
class IpsecTcp(object):
def verify_tcp_checksum(self):
- self.vapi.cli("test http server")
+ # start http cli server listener on http://0.0.0.0:80
+ self.vapi.cli("http cli server")
p = self.params[socket.AF_INET]
- send = (Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac) /
- p.scapy_tun_sa.encrypt(IP(src=p.remote_tun_if_host,
- dst=self.tun_if.local_ip4) /
- TCP(flags='S', dport=80)))
+ send = Ether(
+ src=self.tun_if.remote_mac, dst=self.tun_if.local_mac
+ ) / p.scapy_tun_sa.encrypt(
+ IP(src=p.remote_tun_if_host, dst=self.tun_if.local_ip4)
+ / TCP(flags="S", dport=80)
+ )
self.logger.debug(ppp("Sending packet:", send))
recv = self.send_and_expect(self.tun_if, [send], self.tun_if)
recv = recv[0]
class IpsecTcpTests(IpsecTcp):
def test_tcp_checksum(self):
- """ verify checksum correctness for vpp generated packets """
+ """verify checksum correctness for vpp generated packets"""
self.verify_tcp_checksum()
class IpsecTra4(object):
- """ verify methods for Transport v4 """
+ """verify methods for Transport v4"""
+
+ def get_replay_counts(self, p):
+ replay_node_name = "/err/%s/SA replayed packet" % self.tra4_decrypt_node_name[0]
+ count = self.statistics.get_err_counter(replay_node_name)
+
+ if p.async_mode:
+ replay_post_node_name = (
+ "/err/%s/SA replayed packet" % self.tra4_decrypt_node_name[p.async_mode]
+ )
+ count += self.statistics.get_err_counter(replay_post_node_name)
+
+ return count
+
+ def get_hash_failed_counts(self, p):
+ if ESP == self.encryption_type and p.crypt_algo == "AES-GCM":
+ hash_failed_node_name = (
+ "/err/%s/ESP decryption failed"
+ % self.tra4_decrypt_node_name[p.async_mode]
+ )
+ else:
+ hash_failed_node_name = (
+ "/err/%s/Integrity check failed"
+ % self.tra4_decrypt_node_name[p.async_mode]
+ )
+ count = self.statistics.get_err_counter(hash_failed_node_name)
+
+ if p.async_mode:
+ count += self.statistics.get_err_counter("/err/crypto-dispatch/bad-hmac")
+
+ return count
+
+ def verify_hi_seq_num(self):
+ p = self.params[socket.AF_INET]
+ saf = VppEnum.vl_api_ipsec_sad_flags_t
+ esn_on = p.vpp_tra_sa.esn_en
+ ar_on = p.flags & saf.IPSEC_API_SAD_FLAG_USE_ANTI_REPLAY
+
+ seq_cycle_node_name = (
+ "/err/%s/sequence number cycled (packet dropped)"
+ % self.tra4_encrypt_node_name
+ )
+ replay_count = self.get_replay_counts(p)
+ hash_failed_count = self.get_hash_failed_counts(p)
+ seq_cycle_count = self.statistics.get_err_counter(seq_cycle_node_name)
+
+ # a few packets so we get the rx seq number above the window size and
+ # thus can simulate a wrap with an out of window packet
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=seq,
+ )
+ )
+ for seq in range(63, 80)
+ ]
+ recv_pkts = self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ # these 4 packets will all choose seq-num 0 to decrpyt since none
+ # are out of window when first checked. however, once #200 has
+ # decrypted it will move the window to 200 and has #81 is out of
+ # window. this packet should be dropped.
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=200,
+ )
+ ),
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=81,
+ )
+ ),
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=201,
+ )
+ ),
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=202,
+ )
+ ),
+ ]
+
+ # if anti-replay is off then we won't drop #81
+ n_rx = 3 if ar_on else 4
+ self.send_and_expect(self.tra_if, pkts, self.tra_if, n_rx=n_rx)
+ # this packet is one before the wrap
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=203,
+ )
+ )
+ ]
+ recv_pkts = self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ # move the window over half way to a wrap
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=0x80000001,
+ )
+ )
+ ]
+ recv_pkts = self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ # anti-replay will drop old packets, no anti-replay will not
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=0x44000001,
+ )
+ )
+ ]
+
+ if ar_on:
+ self.send_and_assert_no_replies(self.tra_if, pkts)
+ else:
+ recv_pkts = self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ if esn_on:
+ #
+ # validate wrapping the ESN
+ #
+
+ # wrap scapy's TX SA SN
+ p.scapy_tra_sa.seq_num = 0x100000005
+
+ # send a packet that wraps the window for both AR and no AR
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4)
+ / ICMP(),
+ seq_num=0x100000005,
+ )
+ )
+ ]
+
+ rxs = self.send_and_expect(self.tra_if, pkts, self.tra_if)
+ for rx in rxs:
+ decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
+
+ # move the window forward to half way to the next wrap
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4)
+ / ICMP(),
+ seq_num=0x180000005,
+ )
+ )
+ ]
+
+ rxs = self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ # a packet less than 2^30 from the current position is:
+ # - AR: out of window and dropped
+ # - non-AR: accepted
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4)
+ / ICMP(),
+ seq_num=0x170000005,
+ )
+ )
+ ]
+
+ if ar_on:
+ self.send_and_assert_no_replies(self.tra_if, pkts)
+ else:
+ self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ # a packet more than 2^30 from the current position is:
+ # - AR: out of window and dropped
+ # - non-AR: considered a wrap, but since it's not a wrap
+ # it won't decrpyt and so will be dropped
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4)
+ / ICMP(),
+ seq_num=0x130000005,
+ )
+ )
+ ]
+
+ self.send_and_assert_no_replies(self.tra_if, pkts)
+
+ # a packet less than 2^30 from the current position and is a
+ # wrap; (the seq is currently at 0x180000005).
+ # - AR: out of window so considered a wrap, so accepted
+ # - non-AR: not considered a wrap, so won't decrypt
+ p.scapy_tra_sa.seq_num = 0x260000005
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4)
+ / ICMP(),
+ seq_num=0x260000005,
+ )
+ )
+ ]
+ if ar_on:
+ self.send_and_expect(self.tra_if, pkts, self.tra_if)
+ else:
+ self.send_and_assert_no_replies(self.tra_if, pkts)
+
+ #
+ # window positions are different now for AR/non-AR
+ # move non-AR forward
+ #
+ if not ar_on:
+ # a packet more than 2^30 from the current position and is a
+ # wrap; (the seq is currently at 0x180000005).
+ # - AR: accepted
+ # - non-AR: not considered a wrap, so won't decrypt
+
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4)
+ / ICMP(),
+ seq_num=0x200000005,
+ )
+ ),
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4)
+ / ICMP(),
+ seq_num=0x200000006,
+ )
+ ),
+ ]
+ self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4)
+ / ICMP(),
+ seq_num=0x260000005,
+ )
+ )
+ ]
+ self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
def verify_tra_anti_replay(self):
p = self.params[socket.AF_INET]
esn_en = p.vpp_tra_sa.esn_en
- seq_cycle_node_name = ('/err/%s/sequence number cycled' %
- self.tra4_encrypt_node_name)
- replay_node_name = ('/err/%s/SA replayed packet' %
- self.tra4_decrypt_node_name)
- if ESP == self.encryption_type and p.crypt_algo == "AES-GCM":
- hash_failed_node_name = ('/err/%s/ESP decryption failed' %
- self.tra4_decrypt_node_name)
- else:
- hash_failed_node_name = ('/err/%s/Integrity check failed' %
- self.tra4_decrypt_node_name)
- replay_count = self.statistics.get_err_counter(replay_node_name)
- hash_failed_count = self.statistics.get_err_counter(
- hash_failed_node_name)
+ seq_cycle_node_name = (
+ "/err/%s/sequence number cycled (packet dropped)"
+ % self.tra4_encrypt_node_name
+ )
+ replay_count = self.get_replay_counts(p)
+ hash_failed_count = self.get_hash_failed_counts(p)
seq_cycle_count = self.statistics.get_err_counter(seq_cycle_node_name)
if ESP == self.encryption_type:
- undersize_node_name = ('/err/%s/undersized packet' %
- self.tra4_decrypt_node_name)
- undersize_count = self.statistics.get_err_counter(
- undersize_node_name)
+ undersize_node_name = (
+ "/err/%s/undersized packet" % self.tra4_decrypt_node_name[0]
+ )
+ undersize_count = self.statistics.get_err_counter(undersize_node_name)
#
# send packets with seq numbers 1->34
# for reasons i haven't investigated Scapy won't create a packet with
# seq_num=0
#
- pkts = [(Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=seq))
- for seq in range(1, 34)]
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=seq,
+ )
+ )
+ for seq in range(1, 34)
+ ]
recv_pkts = self.send_and_expect(self.tra_if, pkts, self.tra_if)
# replayed packets are dropped
- self.send_and_assert_no_replies(self.tra_if, pkts)
+ self.send_and_assert_no_replies(self.tra_if, pkts, timeout=0.2)
replay_count += len(pkts)
- self.assert_error_counter_equal(replay_node_name, replay_count)
+ self.assertEqual(self.get_replay_counts(p), replay_count)
#
# now send a batch of packets all with the same sequence number
# the first packet in the batch is legitimate, the rest bogus
#
- pkts = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=35))
- recv_pkts = self.send_and_expect(self.tra_if, pkts * 8,
- self.tra_if, n_rx=1)
+ self.vapi.cli("clear error")
+ self.vapi.cli("clear node counters")
+ pkts = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=35,
+ )
+ recv_pkts = self.send_and_expect(self.tra_if, pkts * 8, self.tra_if, n_rx=1)
replay_count += 7
- self.assert_error_counter_equal(replay_node_name, replay_count)
+ self.assertEqual(self.get_replay_counts(p), replay_count)
#
# now move the window over to 257 (more than one byte) and into Case A
#
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=257))
+ self.vapi.cli("clear error")
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=257,
+ )
recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
# replayed packets are dropped
- self.send_and_assert_no_replies(self.tra_if, pkt * 3)
+ self.send_and_assert_no_replies(self.tra_if, pkt * 3, timeout=0.2)
replay_count += 3
- self.assert_error_counter_equal(replay_node_name, replay_count)
+ self.assertEqual(self.get_replay_counts(p), replay_count)
# the window size is 64 packets
# in window are still accepted
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=200))
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=200,
+ )
recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
# a packet that does not decrypt does not move the window forward
- bogus_sa = SecurityAssociation(self.encryption_type,
- p.vpp_tra_spi,
- crypt_algo=p.crypt_algo,
- crypt_key=mk_scapy_crypt_key(p)[::-1],
- auth_algo=p.auth_algo,
- auth_key=p.auth_key[::-1])
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- bogus_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=350))
- self.send_and_assert_no_replies(self.tra_if, pkt * 17)
+ bogus_sa = SecurityAssociation(
+ self.encryption_type,
+ p.vpp_tra_spi,
+ crypt_algo=p.crypt_algo,
+ crypt_key=mk_scapy_crypt_key(p)[::-1],
+ auth_algo=p.auth_algo,
+ auth_key=p.auth_key[::-1],
+ )
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / bogus_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=350,
+ )
+ self.send_and_assert_no_replies(self.tra_if, pkt * 17, timeout=0.2)
hash_failed_count += 17
- self.assert_error_counter_equal(hash_failed_node_name,
- hash_failed_count)
+ self.assertEqual(self.get_hash_failed_counts(p), hash_failed_count)
# a malformed 'runt' packet
# created by a mis-constructed SA
- if (ESP == self.encryption_type and p.crypt_algo != "NULL"):
- bogus_sa = SecurityAssociation(self.encryption_type,
- p.vpp_tra_spi)
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- bogus_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=350))
- self.send_and_assert_no_replies(self.tra_if, pkt * 17)
+ if ESP == self.encryption_type and p.crypt_algo != "NULL":
+ bogus_sa = SecurityAssociation(self.encryption_type, p.vpp_tra_spi)
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / bogus_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=350,
+ )
+ self.send_and_assert_no_replies(self.tra_if, pkt * 17, timeout=0.2)
undersize_count += 17
- self.assert_error_counter_equal(undersize_node_name,
- undersize_count)
+ self.assert_error_counter_equal(undersize_node_name, undersize_count)
# which we can determine since this packet is still in the window
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=234))
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=234,
+ )
self.send_and_expect(self.tra_if, [pkt], self.tra_if)
#
# this is Case B. So VPP will consider this to be a high seq num wrap
# and so the decrypt attempt will fail
#
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=17))
- self.send_and_assert_no_replies(self.tra_if, pkt * 17)
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=17,
+ )
+ self.send_and_assert_no_replies(self.tra_if, pkt * 17, timeout=0.2)
if esn_en:
# an out of window error with ESN looks like a high sequence
# wrap. but since it isn't then the verify will fail.
hash_failed_count += 17
- self.assert_error_counter_equal(hash_failed_node_name,
- hash_failed_count)
+ self.assertEqual(self.get_hash_failed_counts(p), hash_failed_count)
else:
replay_count += 17
- self.assert_error_counter_equal(replay_node_name,
- replay_count)
+ self.assertEqual(self.get_replay_counts(p), replay_count)
# valid packet moves the window over to 258
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=258))
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=258,
+ )
rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
self.logger.info(self.vapi.ppcli("show ipsec sa 0"))
self.logger.info(self.vapi.ppcli("show ipsec sa 1"))
- pkts = [(Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=seq))
- for seq in range(259, 280)]
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=seq,
+ )
+ )
+ for seq in range(259, 280)
+ ]
if esn_en:
rxs = self.send_and_expect(self.tra_if, pkts, self.tra_if)
# The low seq num we set it to will place VPP's RX window in Case A
#
p.scapy_tra_sa.seq_num = 0x100000005
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=0x100000005))
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=0x100000005,
+ )
rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
+
decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
#
# A packet that has seq num between (2^32-64) and 5 is within
# the window
#
- p.scapy_tra_sa.seq_num = 0xfffffffd
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=0xfffffffd))
+ p.scapy_tra_sa.seq_num = 0xFFFFFFFD
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=0xFFFFFFFD,
+ )
rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
#
# While in case A we cannot wrap the high sequence number again
- # becuase VPP will consider this packet to be one that moves the
+ # because VPP will consider this packet to be one that moves the
# window forward
#
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=0x200000999))
- self.send_and_assert_no_replies(self.tra_if, [pkt], self.tra_if)
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=0x200000999,
+ )
+ self.send_and_assert_no_replies(
+ self.tra_if, [pkt], self.tra_if, timeout=0.2
+ )
hash_failed_count += 1
- self.assert_error_counter_equal(hash_failed_node_name,
- hash_failed_count)
+ self.assertEqual(self.get_hash_failed_counts(p), hash_failed_count)
#
- # but if we move the wondow forward to case B, then we can wrap
+ # but if we move the window forward to case B, then we can wrap
# again
#
p.scapy_tra_sa.seq_num = 0x100000555
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=0x100000555))
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=0x100000555,
+ )
rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
p.scapy_tra_sa.seq_num = 0x200000444
- pkt = (Ether(src=self.tra_if.remote_mac,
- dst=self.tra_if.local_mac) /
- p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4) /
- ICMP(),
- seq_num=0x200000444))
+ pkt = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=0x200000444,
+ )
rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if)
decrypted = p.vpp_tra_sa.decrypt(rx[0][IP])
# without ESN TX sequence numbers can't wrap and packets are
# dropped from here on out.
#
- self.send_and_assert_no_replies(self.tra_if, pkts)
+ self.send_and_assert_no_replies(self.tra_if, pkts, timeout=0.2)
seq_cycle_count += len(pkts)
- self.assert_error_counter_equal(seq_cycle_node_name,
- seq_cycle_count)
+ self.assert_error_counter_equal(seq_cycle_node_name, seq_cycle_count)
# move the security-associations seq number on to the last we used
self.vapi.cli("test ipsec sa %d seq 0x15f" % p.scapy_tra_sa_id)
p.scapy_tra_sa.seq_num = 351
p.vpp_tra_sa.seq_num = 351
+ def verify_tra_lost(self):
+ p = self.params[socket.AF_INET]
+ esn_en = p.vpp_tra_sa.esn_en
+
+ #
+ # send packets with seq numbers 1->34
+ # this means the window size is still in Case B (see RFC4303
+ # Appendix A)
+ #
+ # for reasons i haven't investigated Scapy won't create a packet with
+ # seq_num=0
+ #
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=seq,
+ )
+ )
+ for seq in range(1, 3)
+ ]
+ self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ self.assertEqual(p.tra_sa_out.get_lost(), 0)
+
+ # skip a sequence number
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=seq,
+ )
+ )
+ for seq in range(4, 6)
+ ]
+ self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ self.assertEqual(p.tra_sa_out.get_lost(), 0)
+
+ # the lost packet are counted untill we get up past the first
+ # sizeof(replay_window) packets
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=seq,
+ )
+ )
+ for seq in range(6, 100)
+ ]
+ self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ self.assertEqual(p.tra_sa_out.get_lost(), 1)
+
+ # lost of holes in the sequence
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=seq,
+ )
+ )
+ for seq in range(100, 200, 2)
+ ]
+ self.send_and_expect(self.tra_if, pkts, self.tra_if, n_rx=50)
+
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=seq,
+ )
+ )
+ for seq in range(200, 300)
+ ]
+ self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ self.assertEqual(p.tra_sa_out.get_lost(), 51)
+
+ # a big hole in the seq number space
+ pkts = [
+ (
+ Ether(src=self.tra_if.remote_mac, dst=self.tra_if.local_mac)
+ / p.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4) / ICMP(),
+ seq_num=seq,
+ )
+ )
+ for seq in range(400, 500)
+ ]
+ self.send_and_expect(self.tra_if, pkts, self.tra_if)
+
+ self.assertEqual(p.tra_sa_out.get_lost(), 151)
+
def verify_tra_basic4(self, count=1, payload_size=54):
- """ ipsec v4 transport basic test """
+ """ipsec v4 transport basic test"""
self.vapi.cli("clear errors")
self.vapi.cli("clear ipsec sa")
try:
p = self.params[socket.AF_INET]
- send_pkts = self.gen_encrypt_pkts(p, p.scapy_tra_sa, self.tra_if,
- src=self.tra_if.remote_ip4,
- dst=self.tra_if.local_ip4,
- count=count,
- payload_size=payload_size)
- recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
- self.tra_if)
+ send_pkts = self.gen_encrypt_pkts(
+ p,
+ p.scapy_tra_sa,
+ self.tra_if,
+ src=self.tra_if.remote_ip4,
+ dst=self.tra_if.local_ip4,
+ count=count,
+ payload_size=payload_size,
+ )
+ recv_pkts = self.send_and_expect(self.tra_if, send_pkts, self.tra_if)
for rx in recv_pkts:
self.assertEqual(len(rx) - len(Ether()), rx[IP].len)
self.assert_packet_checksums_valid(rx)
self.logger.info(self.vapi.ppcli("show error"))
self.logger.info(self.vapi.ppcli("show ipsec all"))
- pkts = p.tra_sa_in.get_stats()['packets']
- self.assertEqual(pkts, count,
- "incorrect SA in counts: expected %d != %d" %
- (count, pkts))
- pkts = p.tra_sa_out.get_stats()['packets']
- self.assertEqual(pkts, count,
- "incorrect SA out counts: expected %d != %d" %
- (count, pkts))
+ pkts = p.tra_sa_in.get_stats()["packets"]
+ self.assertEqual(
+ pkts, count, "incorrect SA in counts: expected %d != %d" % (count, pkts)
+ )
+ pkts = p.tra_sa_out.get_stats()["packets"]
+ self.assertEqual(
+ pkts, count, "incorrect SA out counts: expected %d != %d" % (count, pkts)
+ )
+ self.assertEqual(p.tra_sa_out.get_lost(), 0)
+ self.assertEqual(p.tra_sa_in.get_lost(), 0)
self.assert_packet_counter_equal(self.tra4_encrypt_node_name, count)
- self.assert_packet_counter_equal(self.tra4_decrypt_node_name, count)
+ self.assert_packet_counter_equal(self.tra4_decrypt_node_name[0], count)
class IpsecTra4Tests(IpsecTra4):
- """ UT test methods for Transport v4 """
+ """UT test methods for Transport v4"""
+
def test_tra_anti_replay(self):
- """ ipsec v4 transport anti-replay test """
+ """ipsec v4 transport anti-replay test"""
self.verify_tra_anti_replay()
+ def test_tra_lost(self):
+ """ipsec v4 transport lost packet test"""
+ self.verify_tra_lost()
+
def test_tra_basic(self, count=1):
- """ ipsec v4 transport basic test """
+ """ipsec v4 transport basic test"""
self.verify_tra_basic4(count=1)
def test_tra_burst(self):
- """ ipsec v4 transport burst test """
+ """ipsec v4 transport burst test"""
self.verify_tra_basic4(count=257)
class IpsecTra6(object):
- """ verify methods for Transport v6 """
+ """verify methods for Transport v6"""
+
def verify_tra_basic6(self, count=1, payload_size=54):
self.vapi.cli("clear errors")
self.vapi.cli("clear ipsec sa")
try:
p = self.params[socket.AF_INET6]
- send_pkts = self.gen_encrypt_pkts6(p, p.scapy_tra_sa, self.tra_if,
- src=self.tra_if.remote_ip6,
- dst=self.tra_if.local_ip6,
- count=count,
- payload_size=payload_size)
- recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
- self.tra_if)
+ send_pkts = self.gen_encrypt_pkts6(
+ p,
+ p.scapy_tra_sa,
+ self.tra_if,
+ src=self.tra_if.remote_ip6,
+ dst=self.tra_if.local_ip6,
+ count=count,
+ payload_size=payload_size,
+ )
+ recv_pkts = self.send_and_expect(self.tra_if, send_pkts, self.tra_if)
for rx in recv_pkts:
- self.assertEqual(len(rx) - len(Ether()) - len(IPv6()),
- rx[IPv6].plen)
+ self.assertEqual(len(rx) - len(Ether()) - len(IPv6()), rx[IPv6].plen)
try:
decrypted = p.vpp_tra_sa.decrypt(rx[IPv6])
self.assert_packet_checksums_valid(decrypted)
self.logger.info(self.vapi.ppcli("show error"))
self.logger.info(self.vapi.ppcli("show ipsec all"))
- pkts = p.tra_sa_in.get_stats()['packets']
- self.assertEqual(pkts, count,
- "incorrect SA in counts: expected %d != %d" %
- (count, pkts))
- pkts = p.tra_sa_out.get_stats()['packets']
- self.assertEqual(pkts, count,
- "incorrect SA out counts: expected %d != %d" %
- (count, pkts))
+ pkts = p.tra_sa_in.get_stats()["packets"]
+ self.assertEqual(
+ pkts, count, "incorrect SA in counts: expected %d != %d" % (count, pkts)
+ )
+ pkts = p.tra_sa_out.get_stats()["packets"]
+ self.assertEqual(
+ pkts, count, "incorrect SA out counts: expected %d != %d" % (count, pkts)
+ )
self.assert_packet_counter_equal(self.tra6_encrypt_node_name, count)
- self.assert_packet_counter_equal(self.tra6_decrypt_node_name, count)
-
- def gen_encrypt_pkts_ext_hdrs6(self, sa, sw_intf, src, dst, count=1,
- payload_size=54):
- return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
- sa.encrypt(IPv6(src=src, dst=dst) /
- ICMPv6EchoRequest(id=0, seq=1,
- data='X' * payload_size))
- for i in range(count)]
+ self.assert_packet_counter_equal(self.tra6_decrypt_node_name[0], count)
+
+ def gen_encrypt_pkts_ext_hdrs6(
+ self, sa, sw_intf, src, dst, count=1, payload_size=54
+ ):
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / sa.encrypt(
+ IPv6(src=src, dst=dst)
+ / ICMPv6EchoRequest(id=0, seq=1, data="X" * payload_size)
+ )
+ for i in range(count)
+ ]
def gen_pkts_ext_hdrs6(self, sw_intf, src, dst, count=1, payload_size=54):
- return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
- IPv6(src=src, dst=dst) /
- IPv6ExtHdrHopByHop() /
- IPv6ExtHdrFragment(id=2, offset=200) /
- Raw(b'\xff' * 200)
- for i in range(count)]
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / IPv6(src=src, dst=dst)
+ / IPv6ExtHdrHopByHop()
+ / IPv6ExtHdrFragment(id=2, offset=200)
+ / Raw(b"\xff" * 200)
+ for i in range(count)
+ ]
def verify_tra_encrypted6(self, p, sa, rxs):
decrypted = []
#
# check we can decrypt with options
#
- tx = self.gen_encrypt_pkts_ext_hdrs6(p.scapy_tra_sa, self.tra_if,
- src=self.tra_if.remote_ip6,
- dst=self.tra_if.local_ip6,
- count=count)
+ tx = self.gen_encrypt_pkts_ext_hdrs6(
+ p.scapy_tra_sa,
+ self.tra_if,
+ src=self.tra_if.remote_ip6,
+ dst=self.tra_if.local_ip6,
+ count=count,
+ )
self.send_and_expect(self.tra_if, tx, self.tra_if)
#
#
# one extension before ESP
- tx = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
- IPv6(src=self.tra_if.local_ip6,
- dst=self.tra_if.remote_ip6) /
- IPv6ExtHdrFragment(id=2, offset=200) /
- Raw(b'\xff' * 200))
+ tx = (
+ Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
+ / IPv6(src=self.tra_if.local_ip6, dst=self.tra_if.remote_ip6)
+ / IPv6ExtHdrFragment(id=2, offset=200)
+ / Raw(b"\xff" * 200)
+ )
rxs = self.send_and_expect(self.pg2, [tx], self.tra_if)
dcs = self.verify_tra_encrypted6(p, p.vpp_tra_sa, rxs)
self.assert_equal(dc[IPv6ExtHdrFragment].id, 2)
# two extensions before ESP
- tx = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
- IPv6(src=self.tra_if.local_ip6,
- dst=self.tra_if.remote_ip6) /
- IPv6ExtHdrHopByHop() /
- IPv6ExtHdrFragment(id=2, offset=200) /
- Raw(b'\xff' * 200))
+ tx = (
+ Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
+ / IPv6(src=self.tra_if.local_ip6, dst=self.tra_if.remote_ip6)
+ / IPv6ExtHdrHopByHop()
+ / IPv6ExtHdrFragment(id=2, offset=200)
+ / Raw(b"\xff" * 200)
+ )
rxs = self.send_and_expect(self.pg2, [tx], self.tra_if)
dcs = self.verify_tra_encrypted6(p, p.vpp_tra_sa, rxs)
self.assert_equal(dc[IPv6ExtHdrFragment].id, 2)
# two extensions before ESP, one after
- tx = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
- IPv6(src=self.tra_if.local_ip6,
- dst=self.tra_if.remote_ip6) /
- IPv6ExtHdrHopByHop() /
- IPv6ExtHdrFragment(id=2, offset=200) /
- IPv6ExtHdrDestOpt() /
- Raw(b'\xff' * 200))
+ tx = (
+ Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
+ / IPv6(src=self.tra_if.local_ip6, dst=self.tra_if.remote_ip6)
+ / IPv6ExtHdrHopByHop()
+ / IPv6ExtHdrFragment(id=2, offset=200)
+ / IPv6ExtHdrDestOpt()
+ / Raw(b"\xff" * 200)
+ )
rxs = self.send_and_expect(self.pg2, [tx], self.tra_if)
dcs = self.verify_tra_encrypted6(p, p.vpp_tra_sa, rxs)
class IpsecTra6Tests(IpsecTra6):
- """ UT test methods for Transport v6 """
+ """UT test methods for Transport v6"""
+
def test_tra_basic6(self):
- """ ipsec v6 transport basic test """
+ """ipsec v6 transport basic test"""
self.verify_tra_basic6(count=1)
def test_tra_burst6(self):
- """ ipsec v6 transport burst test """
+ """ipsec v6 transport burst test"""
self.verify_tra_basic6(count=257)
class IpsecTra6ExtTests(IpsecTra6):
def test_tra_ext_hdrs_66(self):
- """ ipsec 6o6 tra extension headers test """
+ """ipsec 6o6 tra extension headers test"""
self.verify_tra_66_ext_hdrs(self.params[socket.AF_INET6])
class IpsecTra46Tests(IpsecTra4Tests, IpsecTra6Tests):
- """ UT test methods for Transport v6 and v4"""
+ """UT test methods for Transport v6 and v4"""
+
pass
class IpsecTun4(object):
- """ verify methods for Tunnel v4 """
+ """verify methods for Tunnel v4"""
+
def verify_counters4(self, p, count, n_frags=None, worker=None):
if not n_frags:
n_frags = count
- if (hasattr(p, "spd_policy_in_any")):
- pkts = p.spd_policy_in_any.get_stats(worker)['packets']
- self.assertEqual(pkts, count,
- "incorrect SPD any policy: expected %d != %d" %
- (count, pkts))
-
- if (hasattr(p, "tun_sa_in")):
- pkts = p.tun_sa_in.get_stats(worker)['packets']
- self.assertEqual(pkts, count,
- "incorrect SA in counts: expected %d != %d" %
- (count, pkts))
- pkts = p.tun_sa_out.get_stats(worker)['packets']
- self.assertEqual(pkts, count,
- "incorrect SA out counts: expected %d != %d" %
- (count, pkts))
+ if hasattr(p, "spd_policy_in_any"):
+ pkts = p.spd_policy_in_any.get_stats(worker)["packets"]
+ self.assertEqual(
+ pkts,
+ count,
+ "incorrect SPD any policy: expected %d != %d" % (count, pkts),
+ )
+
+ if hasattr(p, "tun_sa_in"):
+ pkts = p.tun_sa_in.get_stats(worker)["packets"]
+ self.assertEqual(
+ pkts, count, "incorrect SA in counts: expected %d != %d" % (count, pkts)
+ )
+ pkts = p.tun_sa_out.get_stats(worker)["packets"]
+ self.assertEqual(
+ pkts,
+ n_frags,
+ "incorrect SA out counts: expected %d != %d" % (count, pkts),
+ )
self.assert_packet_counter_equal(self.tun4_encrypt_node_name, n_frags)
- self.assert_packet_counter_equal(self.tun4_decrypt_node_name, count)
+ self.assert_packet_counter_equal(self.tun4_decrypt_node_name[0], count)
def verify_decrypted(self, p, rxs):
for rx in rxs:
if not n_rx:
n_rx = count
try:
- send_pkts = self.gen_encrypt_pkts(p, p.scapy_tun_sa, self.tun_if,
- src=p.remote_tun_if_host,
- dst=self.pg1.remote_ip4,
- count=count,
- payload_size=payload_size)
+ send_pkts = self.gen_encrypt_pkts(
+ p,
+ p.scapy_tun_sa,
+ self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip4,
+ count=count,
+ payload_size=payload_size,
+ )
recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
self.verify_decrypted(p, recv_pkts)
- send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
- dst=p.remote_tun_if_host, count=count,
- payload_size=payload_size)
- recv_pkts = self.send_and_expect(self.pg1, send_pkts,
- self.tun_if, n_rx)
+ send_pkts = self.gen_pkts(
+ self.pg1,
+ src=self.pg1.remote_ip4,
+ dst=p.remote_tun_if_host,
+ count=count,
+ payload_size=payload_size,
+ )
+ recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if, n_rx)
self.verify_encrypted(p, p.vpp_tun_sa, recv_pkts)
for rx in recv_pkts:
if not n_rx:
n_rx = count
try:
- send_pkts = self.gen_encrypt_pkts(p, p.scapy_tun_sa, self.tun_if,
- src=p.remote_tun_if_host,
- dst=self.pg1.remote_ip4,
- count=count)
+ send_pkts = self.gen_encrypt_pkts(
+ p,
+ p.scapy_tun_sa,
+ self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip4,
+ count=count,
+ )
self.send_and_assert_no_replies(self.tun_if, send_pkts)
- send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
- dst=p.remote_tun_if_host, count=count,
- payload_size=payload_size)
+ send_pkts = self.gen_pkts(
+ self.pg1,
+ src=self.pg1.remote_ip4,
+ dst=p.remote_tun_if_host,
+ count=count,
+ payload_size=payload_size,
+ )
self.send_and_assert_no_replies(self.pg1, send_pkts)
finally:
def verify_tun_reass_44(self, p):
self.vapi.cli("clear errors")
self.vapi.ip_reassembly_enable_disable(
- sw_if_index=self.tun_if.sw_if_index, enable_ip4=True)
+ sw_if_index=self.tun_if.sw_if_index, enable_ip4=True
+ )
try:
- send_pkts = self.gen_encrypt_pkts(p, p.scapy_tun_sa, self.tun_if,
- src=p.remote_tun_if_host,
- dst=self.pg1.remote_ip4,
- payload_size=1900,
- count=1)
+ send_pkts = self.gen_encrypt_pkts(
+ p,
+ p.scapy_tun_sa,
+ self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip4,
+ payload_size=1900,
+ count=1,
+ )
send_pkts = fragment_rfc791(send_pkts[0], 1400)
- recv_pkts = self.send_and_expect(self.tun_if, send_pkts,
- self.pg1, n_rx=1)
+ recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1, n_rx=1)
self.verify_decrypted(p, recv_pkts)
- send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
- dst=p.remote_tun_if_host, count=1)
- recv_pkts = self.send_and_expect(self.pg1, send_pkts,
- self.tun_if)
+ send_pkts = self.gen_pkts(
+ self.pg1, src=self.pg1.remote_ip4, dst=p.remote_tun_if_host, count=1
+ )
+ recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
self.verify_encrypted(p, p.vpp_tun_sa, recv_pkts)
finally:
self.verify_counters4(p, 1, 1)
self.vapi.ip_reassembly_enable_disable(
- sw_if_index=self.tun_if.sw_if_index, enable_ip4=False)
+ sw_if_index=self.tun_if.sw_if_index, enable_ip4=False
+ )
def verify_tun_64(self, p, count=1):
self.vapi.cli("clear errors")
self.vapi.cli("clear ipsec sa")
try:
- send_pkts = self.gen_encrypt_pkts6(p, p.scapy_tun_sa, self.tun_if,
- src=p.remote_tun_if_host6,
- dst=self.pg1.remote_ip6,
- count=count)
+ send_pkts = self.gen_encrypt_pkts6(
+ p,
+ p.scapy_tun_sa,
+ self.tun_if,
+ src=p.remote_tun_if_host6,
+ dst=self.pg1.remote_ip6,
+ count=count,
+ )
recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
for recv_pkt in recv_pkts:
self.assert_equal(recv_pkt[IPv6].src, p.remote_tun_if_host6)
self.assert_equal(recv_pkt[IPv6].dst, self.pg1.remote_ip6)
self.assert_packet_checksums_valid(recv_pkt)
- send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
- dst=p.remote_tun_if_host6, count=count)
+ send_pkts = self.gen_pkts6(
+ p,
+ self.pg1,
+ src=self.pg1.remote_ip6,
+ dst=p.remote_tun_if_host6,
+ count=count,
+ )
recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
for recv_pkt in recv_pkts:
try:
except:
self.logger.error(ppp("Unexpected packet:", recv_pkt))
try:
- self.logger.debug(
- ppp("Decrypted packet:", decrypt_pkt))
+ self.logger.debug(ppp("Decrypted packet:", decrypt_pkt))
except:
pass
raise
self.verify_counters4(p, count)
def verify_keepalive(self, p):
- pkt = (Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac) /
- IP(src=p.remote_tun_if_host, dst=self.tun_if.local_ip4) /
- UDP(sport=333, dport=4500) /
- Raw(b'\xff'))
- self.send_and_assert_no_replies(self.tun_if, pkt*31)
- self.assert_error_counter_equal(
- '/err/%s/NAT Keepalive' % self.tun4_input_node, 31)
-
- pkt = (Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac) /
- IP(src=p.remote_tun_if_host, dst=self.tun_if.local_ip4) /
- UDP(sport=333, dport=4500) /
- Raw(b'\xfe'))
- self.send_and_assert_no_replies(self.tun_if, pkt*31)
+ # the sizeof Raw is calculated to pad to the minimum ehternet
+ # frame size of 64 btyes
+ pkt = (
+ Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac)
+ / IP(src=p.remote_tun_if_host, dst=self.tun_if.local_ip4)
+ / UDP(sport=333, dport=4500)
+ / Raw(b"\xff")
+ / Padding(0 * 21)
+ )
+ self.send_and_assert_no_replies(self.tun_if, pkt * 31)
self.assert_error_counter_equal(
- '/err/%s/Too Short' % self.tun4_input_node, 31)
+ "/err/%s/NAT Keepalive" % self.tun4_input_node, 31
+ )
+
+ pkt = (
+ Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac)
+ / IP(src=p.remote_tun_if_host, dst=self.tun_if.local_ip4)
+ / UDP(sport=333, dport=4500)
+ / Raw(b"\xfe")
+ )
+ self.send_and_assert_no_replies(self.tun_if, pkt * 31)
+ self.assert_error_counter_equal("/err/%s/Too Short" % self.tun4_input_node, 31)
+
+ pkt = (
+ Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac)
+ / IP(src=p.remote_tun_if_host, dst=self.tun_if.local_ip4)
+ / UDP(sport=333, dport=4500)
+ / Raw(b"\xfe")
+ / Padding(0 * 21)
+ )
+ self.send_and_assert_no_replies(self.tun_if, pkt * 31)
+ self.assert_error_counter_equal("/err/%s/Too Short" % self.tun4_input_node, 62)
class IpsecTun4Tests(IpsecTun4):
- """ UT test methods for Tunnel v4 """
+ """UT test methods for Tunnel v4"""
+
def test_tun_basic44(self):
- """ ipsec 4o4 tunnel basic test """
+ """ipsec 4o4 tunnel basic test"""
self.verify_tun_44(self.params[socket.AF_INET], count=1)
self.tun_if.admin_down()
self.tun_if.resolve_arp()
self.verify_tun_44(self.params[socket.AF_INET], count=1)
def test_tun_reass_basic44(self):
- """ ipsec 4o4 tunnel basic reassembly test """
+ """ipsec 4o4 tunnel basic reassembly test"""
self.verify_tun_reass_44(self.params[socket.AF_INET])
def test_tun_burst44(self):
- """ ipsec 4o4 tunnel burst test """
+ """ipsec 4o4 tunnel burst test"""
self.verify_tun_44(self.params[socket.AF_INET], count=127)
class IpsecTun6(object):
- """ verify methods for Tunnel v6 """
+ """verify methods for Tunnel v6"""
+
def verify_counters6(self, p_in, p_out, count, worker=None):
- if (hasattr(p_in, "tun_sa_in")):
- pkts = p_in.tun_sa_in.get_stats(worker)['packets']
- self.assertEqual(pkts, count,
- "incorrect SA in counts: expected %d != %d" %
- (count, pkts))
- if (hasattr(p_out, "tun_sa_out")):
- pkts = p_out.tun_sa_out.get_stats(worker)['packets']
- self.assertEqual(pkts, count,
- "incorrect SA out counts: expected %d != %d" %
- (count, pkts))
+ if hasattr(p_in, "tun_sa_in"):
+ pkts = p_in.tun_sa_in.get_stats(worker)["packets"]
+ self.assertEqual(
+ pkts, count, "incorrect SA in counts: expected %d != %d" % (count, pkts)
+ )
+ if hasattr(p_out, "tun_sa_out"):
+ pkts = p_out.tun_sa_out.get_stats(worker)["packets"]
+ self.assertEqual(
+ pkts,
+ count,
+ "incorrect SA out counts: expected %d != %d" % (count, pkts),
+ )
self.assert_packet_counter_equal(self.tun6_encrypt_node_name, count)
- self.assert_packet_counter_equal(self.tun6_decrypt_node_name, count)
+ self.assert_packet_counter_equal(self.tun6_decrypt_node_name[0], count)
def verify_decrypted6(self, p, rxs):
for rx in rxs:
def verify_encrypted6(self, p, sa, rxs):
for rx in rxs:
self.assert_packet_checksums_valid(rx)
- self.assertEqual(len(rx) - len(Ether()) - len(IPv6()),
- rx[IPv6].plen)
+ self.assertEqual(len(rx) - len(Ether()) - len(IPv6()), rx[IPv6].plen)
+ self.assert_equal(rx[IPv6].hlim, p.outer_hop_limit)
+ if p.outer_flow_label:
+ self.assert_equal(rx[IPv6].fl, p.outer_flow_label)
try:
decrypt_pkt = p.vpp_tun_sa.decrypt(rx[IPv6])
if not decrypt_pkt.haslayer(IPv6):
self.assert_packet_checksums_valid(decrypt_pkt)
self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip6)
self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
+ self.assert_equal(decrypt_pkt.hlim, p.inner_hop_limit - 1)
+ self.assert_equal(decrypt_pkt.fl, p.inner_flow_label)
except:
self.logger.debug(ppp("Unexpected packet:", rx))
try:
pass
raise
- def verify_drop_tun_66(self, p_in, count=1, payload_size=64):
+ def verify_drop_tun_tx_66(self, p_in, count=1, payload_size=64):
self.vapi.cli("clear errors")
self.vapi.cli("clear ipsec sa")
- send_pkts = self.gen_encrypt_pkts6(p_in, p_in.scapy_tun_sa,
- self.tun_if,
- src=p_in.remote_tun_if_host,
- dst=self.pg1.remote_ip6,
- count=count)
+ send_pkts = self.gen_pkts6(
+ p_in,
+ self.pg1,
+ src=self.pg1.remote_ip6,
+ dst=p_in.remote_tun_if_host,
+ count=count,
+ payload_size=payload_size,
+ )
self.send_and_assert_no_replies(self.tun_if, send_pkts)
self.logger.info(self.vapi.cli("sh punt stats"))
+ def verify_drop_tun_rx_66(self, p_in, count=1, payload_size=64):
+ self.vapi.cli("clear errors")
+ self.vapi.cli("clear ipsec sa")
+
+ send_pkts = self.gen_encrypt_pkts6(
+ p_in,
+ p_in.scapy_tun_sa,
+ self.tun_if,
+ src=p_in.remote_tun_if_host,
+ dst=self.pg1.remote_ip6,
+ count=count,
+ )
+ self.send_and_assert_no_replies(self.tun_if, send_pkts)
+
+ def verify_drop_tun_66(self, p_in, count=1, payload_size=64):
+ self.verify_drop_tun_tx_66(p_in, count=count, payload_size=payload_size)
+ self.verify_drop_tun_rx_66(p_in, count=count, payload_size=payload_size)
+
def verify_tun_66(self, p_in, p_out=None, count=1, payload_size=64):
self.vapi.cli("clear errors")
self.vapi.cli("clear ipsec sa")
if not p_out:
p_out = p_in
try:
- send_pkts = self.gen_encrypt_pkts6(p_in, p_in.scapy_tun_sa,
- self.tun_if,
- src=p_in.remote_tun_if_host,
- dst=self.pg1.remote_ip6,
- count=count,
- payload_size=payload_size)
+ send_pkts = self.gen_encrypt_pkts6(
+ p_in,
+ p_in.scapy_tun_sa,
+ self.tun_if,
+ src=p_in.remote_tun_if_host,
+ dst=self.pg1.remote_ip6,
+ count=count,
+ payload_size=payload_size,
+ )
recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
self.verify_decrypted6(p_in, recv_pkts)
- send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
- dst=p_out.remote_tun_if_host,
- count=count,
- payload_size=payload_size)
+ send_pkts = self.gen_pkts6(
+ p_in,
+ self.pg1,
+ src=self.pg1.remote_ip6,
+ dst=p_out.remote_tun_if_host,
+ count=count,
+ payload_size=payload_size,
+ )
recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
self.verify_encrypted6(p_out, p_out.vpp_tun_sa, recv_pkts)
def verify_tun_reass_66(self, p):
self.vapi.cli("clear errors")
self.vapi.ip_reassembly_enable_disable(
- sw_if_index=self.tun_if.sw_if_index, enable_ip6=True)
+ sw_if_index=self.tun_if.sw_if_index, enable_ip6=True
+ )
try:
- send_pkts = self.gen_encrypt_pkts6(p, p.scapy_tun_sa, self.tun_if,
- src=p.remote_tun_if_host,
- dst=self.pg1.remote_ip6,
- count=1,
- payload_size=1850)
+ send_pkts = self.gen_encrypt_pkts6(
+ p,
+ p.scapy_tun_sa,
+ self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip6,
+ count=1,
+ payload_size=1850,
+ )
send_pkts = fragment_rfc8200(send_pkts[0], 1, 1400, self.logger)
- recv_pkts = self.send_and_expect(self.tun_if, send_pkts,
- self.pg1, n_rx=1)
+ recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1, n_rx=1)
self.verify_decrypted6(p, recv_pkts)
- send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
- dst=p.remote_tun_if_host,
- count=1,
- payload_size=64)
- recv_pkts = self.send_and_expect(self.pg1, send_pkts,
- self.tun_if)
+ send_pkts = self.gen_pkts6(
+ p,
+ self.pg1,
+ src=self.pg1.remote_ip6,
+ dst=p.remote_tun_if_host,
+ count=1,
+ payload_size=64,
+ )
+ recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
self.verify_encrypted6(p, p.vpp_tun_sa, recv_pkts)
finally:
self.logger.info(self.vapi.ppcli("show error"))
self.logger.info(self.vapi.ppcli("show ipsec all"))
self.verify_counters6(p, p, 1)
self.vapi.ip_reassembly_enable_disable(
- sw_if_index=self.tun_if.sw_if_index, enable_ip6=False)
+ sw_if_index=self.tun_if.sw_if_index, enable_ip6=False
+ )
def verify_tun_46(self, p, count=1):
- """ ipsec 4o6 tunnel basic test """
+ """ipsec 4o6 tunnel basic test"""
self.vapi.cli("clear errors")
self.vapi.cli("clear ipsec sa")
try:
- send_pkts = self.gen_encrypt_pkts(p, p.scapy_tun_sa, self.tun_if,
- src=p.remote_tun_if_host4,
- dst=self.pg1.remote_ip4,
- count=count)
+ send_pkts = self.gen_encrypt_pkts(
+ p,
+ p.scapy_tun_sa,
+ self.tun_if,
+ src=p.remote_tun_if_host4,
+ dst=self.pg1.remote_ip4,
+ count=count,
+ )
recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
for recv_pkt in recv_pkts:
self.assert_equal(recv_pkt[IP].src, p.remote_tun_if_host4)
self.assert_equal(recv_pkt[IP].dst, self.pg1.remote_ip4)
self.assert_packet_checksums_valid(recv_pkt)
- send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
- dst=p.remote_tun_if_host4,
- count=count)
+ send_pkts = self.gen_pkts(
+ self.pg1,
+ src=self.pg1.remote_ip4,
+ dst=p.remote_tun_if_host4,
+ count=count,
+ )
recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
for recv_pkt in recv_pkts:
try:
except:
self.logger.debug(ppp("Unexpected packet:", recv_pkt))
try:
- self.logger.debug(ppp("Decrypted packet:",
- decrypt_pkt))
+ self.logger.debug(ppp("Decrypted packet:", decrypt_pkt))
except:
pass
raise
class IpsecTun6Tests(IpsecTun6):
- """ UT test methods for Tunnel v6 """
+ """UT test methods for Tunnel v6"""
def test_tun_basic66(self):
- """ ipsec 6o6 tunnel basic test """
+ """ipsec 6o6 tunnel basic test"""
self.verify_tun_66(self.params[socket.AF_INET6], count=1)
def test_tun_reass_basic66(self):
- """ ipsec 6o6 tunnel basic reassembly test """
+ """ipsec 6o6 tunnel basic reassembly test"""
self.verify_tun_reass_66(self.params[socket.AF_INET6])
def test_tun_burst66(self):
- """ ipsec 6o6 tunnel burst test """
+ """ipsec 6o6 tunnel burst test"""
self.verify_tun_66(self.params[socket.AF_INET6], count=257)
class IpsecTun6HandoffTests(IpsecTun6):
- """ UT test methods for Tunnel v6 with multiple workers """
- worker_config = "workers 2"
+ """UT test methods for Tunnel v6 with multiple workers"""
+
+ vpp_worker_count = 2
def test_tun_handoff_66(self):
- """ ipsec 6o6 tunnel worker hand-off test """
+ """ipsec 6o6 tunnel worker hand-off test"""
+ self.vapi.cli("clear errors")
+ self.vapi.cli("clear ipsec sa")
+
N_PKTS = 15
p = self.params[socket.AF_INET6]
# inject alternately on worker 0 and 1. all counts on the SA
# should be against worker 0
for worker in [0, 1, 0, 1]:
- send_pkts = self.gen_encrypt_pkts6(p, p.scapy_tun_sa, self.tun_if,
- src=p.remote_tun_if_host,
- dst=self.pg1.remote_ip6,
- count=N_PKTS)
- recv_pkts = self.send_and_expect(self.tun_if, send_pkts,
- self.pg1, worker=worker)
+ send_pkts = self.gen_encrypt_pkts6(
+ p,
+ p.scapy_tun_sa,
+ self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip6,
+ count=N_PKTS,
+ )
+ recv_pkts = self.send_and_expect(
+ self.tun_if, send_pkts, self.pg1, worker=worker
+ )
self.verify_decrypted6(p, recv_pkts)
- send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6,
- dst=p.remote_tun_if_host,
- count=N_PKTS)
- recv_pkts = self.send_and_expect(self.pg1, send_pkts,
- self.tun_if, worker=worker)
+ send_pkts = self.gen_pkts6(
+ p,
+ self.pg1,
+ src=self.pg1.remote_ip6,
+ dst=p.remote_tun_if_host,
+ count=N_PKTS,
+ )
+ recv_pkts = self.send_and_expect(
+ self.pg1, send_pkts, self.tun_if, worker=worker
+ )
self.verify_encrypted6(p, p.vpp_tun_sa, recv_pkts)
# all counts against the first worker that was used
- self.verify_counters6(p, p, 4*N_PKTS, worker=0)
+ self.verify_counters6(p, p, 4 * N_PKTS, worker=0)
class IpsecTun4HandoffTests(IpsecTun4):
- """ UT test methods for Tunnel v4 with multiple workers """
- worker_config = "workers 2"
+ """UT test methods for Tunnel v4 with multiple workers"""
+
+ vpp_worker_count = 2
def test_tun_handooff_44(self):
- """ ipsec 4o4 tunnel worker hand-off test """
+ """ipsec 4o4 tunnel worker hand-off test"""
+ self.vapi.cli("clear errors")
+ self.vapi.cli("clear ipsec sa")
+
N_PKTS = 15
p = self.params[socket.AF_INET]
# inject alternately on worker 0 and 1. all counts on the SA
# should be against worker 0
for worker in [0, 1, 0, 1]:
- send_pkts = self.gen_encrypt_pkts(p, p.scapy_tun_sa, self.tun_if,
- src=p.remote_tun_if_host,
- dst=self.pg1.remote_ip4,
- count=N_PKTS)
- recv_pkts = self.send_and_expect(self.tun_if, send_pkts,
- self.pg1, worker=worker)
+ send_pkts = self.gen_encrypt_pkts(
+ p,
+ p.scapy_tun_sa,
+ self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip4,
+ count=N_PKTS,
+ )
+ recv_pkts = self.send_and_expect(
+ self.tun_if, send_pkts, self.pg1, worker=worker
+ )
self.verify_decrypted(p, recv_pkts)
- send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
- dst=p.remote_tun_if_host,
- count=N_PKTS)
- recv_pkts = self.send_and_expect(self.pg1, send_pkts,
- self.tun_if, worker=worker)
+ send_pkts = self.gen_pkts(
+ self.pg1,
+ src=self.pg1.remote_ip4,
+ dst=p.remote_tun_if_host,
+ count=N_PKTS,
+ )
+ recv_pkts = self.send_and_expect(
+ self.pg1, send_pkts, self.tun_if, worker=worker
+ )
self.verify_encrypted(p, p.vpp_tun_sa, recv_pkts)
# all counts against the first worker that was used
- self.verify_counters4(p, 4*N_PKTS, worker=0)
+ self.verify_counters4(p, 4 * N_PKTS, worker=0)
class IpsecTun46Tests(IpsecTun4Tests, IpsecTun6Tests):
- """ UT test methods for Tunnel v6 & v4 """
+ """UT test methods for Tunnel v6 & v4"""
+
pass
-if __name__ == '__main__':
+class IPSecIPv4Fwd(VppTestCase):
+ """Test IPSec by capturing and verifying IPv4 forwarded pkts"""
+
+ @classmethod
+ def setUpConstants(cls):
+ super(IPSecIPv4Fwd, cls).setUpConstants()
+
+ def setUp(self):
+ super(IPSecIPv4Fwd, self).setUp()
+ # store SPD objects so we can remove configs on tear down
+ self.spd_objs = []
+ self.spd_policies = []
+
+ def tearDown(self):
+ # remove SPD policies
+ for obj in self.spd_policies:
+ obj.remove_vpp_config()
+ self.spd_policies = []
+ # remove SPD items (interface bindings first, then SPD)
+ for obj in reversed(self.spd_objs):
+ obj.remove_vpp_config()
+ self.spd_objs = []
+ # close down pg intfs
+ for pg in self.pg_interfaces:
+ pg.unconfig_ip4()
+ pg.admin_down()
+ super(IPSecIPv4Fwd, self).tearDown()
+
+ def create_interfaces(self, num_ifs=2):
+ # create interfaces pg0 ... pg<num_ifs>
+ self.create_pg_interfaces(range(num_ifs))
+ for pg in self.pg_interfaces:
+ # put the interface up
+ pg.admin_up()
+ # configure IPv4 address on the interface
+ pg.config_ip4()
+ # resolve ARP, so that we know VPP MAC
+ pg.resolve_arp()
+ self.logger.info(self.vapi.ppcli("show int addr"))
+
+ def spd_create_and_intf_add(self, spd_id, pg_list):
+ spd = VppIpsecSpd(self, spd_id)
+ spd.add_vpp_config()
+ self.spd_objs.append(spd)
+ for pg in pg_list:
+ spdItf = VppIpsecSpdItfBinding(self, spd, pg)
+ spdItf.add_vpp_config()
+ self.spd_objs.append(spdItf)
+
+ def get_policy(self, policy_type):
+ e = VppEnum.vl_api_ipsec_spd_action_t
+ if policy_type == "protect":
+ return e.IPSEC_API_SPD_ACTION_PROTECT
+ elif policy_type == "bypass":
+ return e.IPSEC_API_SPD_ACTION_BYPASS
+ elif policy_type == "discard":
+ return e.IPSEC_API_SPD_ACTION_DISCARD
+ else:
+ raise Exception("Invalid policy type: %s", policy_type)
+
+ def spd_add_rem_policy(
+ self,
+ spd_id,
+ src_if,
+ dst_if,
+ proto,
+ is_out,
+ priority,
+ policy_type,
+ remove=False,
+ all_ips=False,
+ ip_range=False,
+ local_ip_start=ip_address("0.0.0.0"),
+ local_ip_stop=ip_address("255.255.255.255"),
+ remote_ip_start=ip_address("0.0.0.0"),
+ remote_ip_stop=ip_address("255.255.255.255"),
+ remote_port_start=0,
+ remote_port_stop=65535,
+ local_port_start=0,
+ local_port_stop=65535,
+ ):
+ spd = VppIpsecSpd(self, spd_id)
+
+ if all_ips:
+ src_range_low = ip_address("0.0.0.0")
+ src_range_high = ip_address("255.255.255.255")
+ dst_range_low = ip_address("0.0.0.0")
+ dst_range_high = ip_address("255.255.255.255")
+
+ elif ip_range:
+ src_range_low = local_ip_start
+ src_range_high = local_ip_stop
+ dst_range_low = remote_ip_start
+ dst_range_high = remote_ip_stop
+
+ else:
+ src_range_low = src_if.remote_ip4
+ src_range_high = src_if.remote_ip4
+ dst_range_low = dst_if.remote_ip4
+ dst_range_high = dst_if.remote_ip4
+
+ spdEntry = VppIpsecSpdEntry(
+ self,
+ spd,
+ 0,
+ src_range_low,
+ src_range_high,
+ dst_range_low,
+ dst_range_high,
+ proto,
+ priority=priority,
+ policy=self.get_policy(policy_type),
+ is_outbound=is_out,
+ remote_port_start=remote_port_start,
+ remote_port_stop=remote_port_stop,
+ local_port_start=local_port_start,
+ local_port_stop=local_port_stop,
+ )
+
+ if remove is False:
+ spdEntry.add_vpp_config()
+ self.spd_policies.append(spdEntry)
+ else:
+ spdEntry.remove_vpp_config()
+ self.spd_policies.remove(spdEntry)
+ self.logger.info(self.vapi.ppcli("show ipsec all"))
+ return spdEntry
+
+ def create_stream(self, src_if, dst_if, pkt_count, src_prt=1234, dst_prt=5678):
+ packets = []
+ for i in range(pkt_count):
+ # create packet info stored in the test case instance
+ info = self.create_packet_info(src_if, dst_if)
+ # convert the info into packet payload
+ payload = self.info_to_payload(info)
+ # create the packet itself
+ p = (
+ Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ / IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4)
+ / UDP(sport=src_prt, dport=dst_prt)
+ / Raw(payload)
+ )
+ # store a copy of the packet in the packet info
+ info.data = p.copy()
+ # append the packet to the list
+ packets.append(p)
+ # return the created packet list
+ return packets
+
+ def verify_capture(self, src_if, dst_if, capture):
+ packet_info = None
+ for packet in capture:
+ try:
+ ip = packet[IP]
+ udp = packet[UDP]
+ # convert the payload to packet info object
+ payload_info = self.payload_to_info(packet)
+ # make sure the indexes match
+ self.assert_equal(
+ payload_info.src, src_if.sw_if_index, "source sw_if_index"
+ )
+ self.assert_equal(
+ payload_info.dst, dst_if.sw_if_index, "destination sw_if_index"
+ )
+ packet_info = self.get_next_packet_info_for_interface2(
+ src_if.sw_if_index, dst_if.sw_if_index, packet_info
+ )
+ # make sure we didn't run out of saved packets
+ self.assertIsNotNone(packet_info)
+ self.assert_equal(
+ payload_info.index, packet_info.index, "packet info index"
+ )
+ saved_packet = packet_info.data # fetch the saved packet
+ # assert the values match
+ self.assert_equal(ip.src, saved_packet[IP].src, "IP source address")
+ # ... more assertions here
+ self.assert_equal(udp.sport, saved_packet[UDP].sport, "UDP source port")
+ except Exception as e:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+ remaining_packet = self.get_next_packet_info_for_interface2(
+ src_if.sw_if_index, dst_if.sw_if_index, packet_info
+ )
+ self.assertIsNone(
+ remaining_packet,
+ "Interface %s: Packet expected from interface "
+ "%s didn't arrive" % (dst_if.name, src_if.name),
+ )
+
+ def verify_policy_match(self, pkt_count, spdEntry):
+ self.logger.info("XXXX %s %s", str(spdEntry), str(spdEntry.get_stats()))
+ matched_pkts = spdEntry.get_stats().get("packets")
+ self.logger.info("Policy %s matched: %d pkts", str(spdEntry), matched_pkts)
+ self.assert_equal(pkt_count, matched_pkts)
+
+
+class SpdFlowCacheTemplate(IPSecIPv4Fwd):
+ @classmethod
+ def setUpConstants(cls):
+ super(SpdFlowCacheTemplate, cls).setUpConstants()
+ # Override this method with required cmdline parameters e.g.
+ # cls.vpp_cmdline.extend(["ipsec", "{",
+ # "ipv4-outbound-spd-flow-cache on",
+ # "}"])
+ # cls.logger.info("VPP modified cmdline is %s" % " "
+ # .join(cls.vpp_cmdline))
+
+ def setUp(self):
+ super(SpdFlowCacheTemplate, self).setUp()
+
+ def tearDown(self):
+ super(SpdFlowCacheTemplate, self).tearDown()
+
+ def get_spd_flow_cache_entries(self, outbound):
+ """'show ipsec spd' output:
+ ipv4-inbound-spd-flow-cache-entries: 0
+ ipv4-outbound-spd-flow-cache-entries: 0
+ """
+ show_ipsec_reply = self.vapi.cli("show ipsec spd")
+ # match the relevant section of 'show ipsec spd' output
+ if outbound:
+ regex_match = re.search(
+ "ipv4-outbound-spd-flow-cache-entries: (.*)",
+ show_ipsec_reply,
+ re.DOTALL,
+ )
+ else:
+ regex_match = re.search(
+ "ipv4-inbound-spd-flow-cache-entries: (.*)", show_ipsec_reply, re.DOTALL
+ )
+ if regex_match is None:
+ raise Exception(
+ "Unable to find spd flow cache entries \
+ in 'show ipsec spd' CLI output - regex failed to match"
+ )
+ else:
+ try:
+ num_entries = int(regex_match.group(1))
+ except ValueError:
+ raise Exception(
+ "Unable to get spd flow cache entries \
+ from 'show ipsec spd' string: %s",
+ regex_match.group(0),
+ )
+ self.logger.info("%s", regex_match.group(0))
+ return num_entries
+
+ def verify_num_outbound_flow_cache_entries(self, expected_elements):
+ self.assertEqual(
+ self.get_spd_flow_cache_entries(outbound=True), expected_elements
+ )
+
+ def verify_num_inbound_flow_cache_entries(self, expected_elements):
+ self.assertEqual(
+ self.get_spd_flow_cache_entries(outbound=False), expected_elements
+ )
+
+ def crc32_supported(self):
+ # lscpu is part of util-linux package, available on all Linux Distros
+ stream = os.popen("lscpu")
+ cpu_info = stream.read()
+ # feature/flag "crc32" on Aarch64 and "sse4_2" on x86
+ # see vppinfra/crc32.h
+ if "crc32" or "sse4_2" in cpu_info:
+ self.logger.info("\ncrc32 supported:\n" + cpu_info)
+ return True
+ else:
+ self.logger.info("\ncrc32 NOT supported:\n" + cpu_info)
+ return False
+
+
+class IPSecIPv6Fwd(VppTestCase):
+ """Test IPSec by capturing and verifying IPv6 forwarded pkts"""
+
+ @classmethod
+ def setUpConstants(cls):
+ super(IPSecIPv6Fwd, cls).setUpConstants()
+
+ def setUp(self):
+ super(IPSecIPv6Fwd, self).setUp()
+ # store SPD objects so we can remove configs on tear down
+ self.spd_objs = []
+ self.spd_policies = []
+
+ def tearDown(self):
+ # remove SPD policies
+ for obj in self.spd_policies:
+ obj.remove_vpp_config()
+ self.spd_policies = []
+ # remove SPD items (interface bindings first, then SPD)
+ for obj in reversed(self.spd_objs):
+ obj.remove_vpp_config()
+ self.spd_objs = []
+ # close down pg intfs
+ for pg in self.pg_interfaces:
+ pg.unconfig_ip6()
+ pg.admin_down()
+ super(IPSecIPv6Fwd, self).tearDown()
+
+ def create_interfaces(self, num_ifs=2):
+ # create interfaces pg0 ... pg<num_ifs>
+ self.create_pg_interfaces(range(num_ifs))
+ for pg in self.pg_interfaces:
+ # put the interface up
+ pg.admin_up()
+ # configure IPv6 address on the interface
+ pg.config_ip6()
+ pg.resolve_ndp()
+ self.logger.info(self.vapi.ppcli("show int addr"))
+
+ def spd_create_and_intf_add(self, spd_id, pg_list):
+ spd = VppIpsecSpd(self, spd_id)
+ spd.add_vpp_config()
+ self.spd_objs.append(spd)
+ for pg in pg_list:
+ spdItf = VppIpsecSpdItfBinding(self, spd, pg)
+ spdItf.add_vpp_config()
+ self.spd_objs.append(spdItf)
+
+ def get_policy(self, policy_type):
+ e = VppEnum.vl_api_ipsec_spd_action_t
+ if policy_type == "protect":
+ return e.IPSEC_API_SPD_ACTION_PROTECT
+ elif policy_type == "bypass":
+ return e.IPSEC_API_SPD_ACTION_BYPASS
+ elif policy_type == "discard":
+ return e.IPSEC_API_SPD_ACTION_DISCARD
+ else:
+ raise Exception("Invalid policy type: %s", policy_type)
+
+ def spd_add_rem_policy(
+ self,
+ spd_id,
+ src_if,
+ dst_if,
+ proto,
+ is_out,
+ priority,
+ policy_type,
+ remove=False,
+ all_ips=False,
+ ip_range=False,
+ local_ip_start=ip_address("0::0"),
+ local_ip_stop=ip_address("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"),
+ remote_ip_start=ip_address("0::0"),
+ remote_ip_stop=ip_address("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"),
+ remote_port_start=0,
+ remote_port_stop=65535,
+ local_port_start=0,
+ local_port_stop=65535,
+ ):
+ spd = VppIpsecSpd(self, spd_id)
+
+ if all_ips:
+ src_range_low = ip_address("0::0")
+ src_range_high = ip_address("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff")
+ dst_range_low = ip_address("0::0")
+ dst_range_high = ip_address("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff")
+
+ elif ip_range:
+ src_range_low = local_ip_start
+ src_range_high = local_ip_stop
+ dst_range_low = remote_ip_start
+ dst_range_high = remote_ip_stop
+
+ else:
+ src_range_low = src_if.remote_ip6
+ src_range_high = src_if.remote_ip6
+ dst_range_low = dst_if.remote_ip6
+ dst_range_high = dst_if.remote_ip6
+
+ spdEntry = VppIpsecSpdEntry(
+ self,
+ spd,
+ 0,
+ src_range_low,
+ src_range_high,
+ dst_range_low,
+ dst_range_high,
+ proto,
+ priority=priority,
+ policy=self.get_policy(policy_type),
+ is_outbound=is_out,
+ remote_port_start=remote_port_start,
+ remote_port_stop=remote_port_stop,
+ local_port_start=local_port_start,
+ local_port_stop=local_port_stop,
+ )
+
+ if remove is False:
+ spdEntry.add_vpp_config()
+ self.spd_policies.append(spdEntry)
+ else:
+ spdEntry.remove_vpp_config()
+ self.spd_policies.remove(spdEntry)
+ self.logger.info(self.vapi.ppcli("show ipsec all"))
+ return spdEntry
+
+ def create_stream(self, src_if, dst_if, pkt_count, src_prt=1234, dst_prt=5678):
+ packets = []
+ for i in range(pkt_count):
+ # create packet info stored in the test case instance
+ info = self.create_packet_info(src_if, dst_if)
+ # convert the info into packet payload
+ payload = self.info_to_payload(info)
+ # create the packet itself
+ p = (
+ Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ / IPv6(src=src_if.remote_ip6, dst=dst_if.remote_ip6)
+ / UDP(sport=src_prt, dport=dst_prt)
+ / Raw(payload)
+ )
+ # store a copy of the packet in the packet info
+ info.data = p.copy()
+ # append the packet to the list
+ packets.append(p)
+ # return the created packet list
+ return packets
+
+ def verify_capture(self, src_if, dst_if, capture):
+ packet_info = None
+ for packet in capture:
+ try:
+ ip = packet[IPv6]
+ udp = packet[UDP]
+ # convert the payload to packet info object
+ payload_info = self.payload_to_info(packet)
+ # make sure the indexes match
+ self.assert_equal(
+ payload_info.src, src_if.sw_if_index, "source sw_if_index"
+ )
+ self.assert_equal(
+ payload_info.dst, dst_if.sw_if_index, "destination sw_if_index"
+ )
+ packet_info = self.get_next_packet_info_for_interface2(
+ src_if.sw_if_index, dst_if.sw_if_index, packet_info
+ )
+ # make sure we didn't run out of saved packets
+ self.assertIsNotNone(packet_info)
+ self.assert_equal(
+ payload_info.index, packet_info.index, "packet info index"
+ )
+ saved_packet = packet_info.data # fetch the saved packet
+ # assert the values match
+ self.assert_equal(ip.src, saved_packet[IPv6].src, "IP source address")
+ # ... more assertions here
+ self.assert_equal(udp.sport, saved_packet[UDP].sport, "UDP source port")
+ except Exception as e:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+ remaining_packet = self.get_next_packet_info_for_interface2(
+ src_if.sw_if_index, dst_if.sw_if_index, packet_info
+ )
+ self.assertIsNone(
+ remaining_packet,
+ "Interface %s: Packet expected from interface "
+ "%s didn't arrive" % (dst_if.name, src_if.name),
+ )
+
+ def verify_policy_match(self, pkt_count, spdEntry):
+ self.logger.info("XXXX %s %s", str(spdEntry), str(spdEntry.get_stats()))
+ matched_pkts = spdEntry.get_stats().get("packets")
+ self.logger.info("Policy %s matched: %d pkts", str(spdEntry), matched_pkts)
+ self.assert_equal(pkt_count, matched_pkts)
+
+
+if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff