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authorNeale Ranns <nranns@cisco.com>2019-03-28 08:56:10 +0000
committerDamjan Marion <dmarion@me.com>2019-03-29 11:10:33 +0000
commitd7603d97e046d59aba6864b208c181b39fc72b52 (patch)
treeae68418e3987cf2e849df482e3aa3563f42b8f1c /test/template_ipsec.py
parent74b7437bd118e104f50831f8a8f3cc8d10aa2530 (diff)
IPSEC: tunnel fragmentation
Change-Id: I63741a22bc82f5f861e1c0f26a93b5569cc52061 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'test/template_ipsec.py')
-rw-r--r--test/template_ipsec.py40
1 files changed, 25 insertions, 15 deletions
diff --git a/test/template_ipsec.py b/test/template_ipsec.py
index 40e787eebb7..333a6685b8e 100644
--- a/test/template_ipsec.py
+++ b/test/template_ipsec.py
@@ -7,7 +7,7 @@ from scapy.layers.l2 import Ether, Raw
from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest
from framework import VppTestCase, VppTestRunner
-from util import ppp
+from util import ppp, reassemble4
from vpp_papi import VppEnum
@@ -161,8 +161,6 @@ class TemplateIpsec(VppTestCase):
super(TemplateIpsec, self).setUp()
self.setup_params()
- self.payload = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"\
- "XXXXXXXXXXXXXXXXXXXXX"
self.tun_spd_id = 1
self.tra_spd_id = 2
@@ -193,26 +191,30 @@ class TemplateIpsec(VppTestCase):
if not self.vpp_dead:
self.vapi.cli("show hardware")
- def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1):
+ def gen_encrypt_pkts(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(IP(src=src, dst=dst) / ICMP() / self.payload)
+ sa.encrypt(IP(src=src, dst=dst) /
+ ICMP() / Raw('X' * payload_size))
for i in range(count)]
- def gen_encrypt_pkts6(self, sa, sw_intf, src, dst, count=1):
+ def gen_encrypt_pkts6(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=self.payload))
+ ICMPv6EchoRequest(id=0, seq=1,
+ data='X' * payload_size))
for i in range(count)]
- def gen_pkts(self, sw_intf, src, dst, count=1):
+ 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() / self.payload
+ IP(src=src, dst=dst) / ICMP() / Raw('X' * payload_size)
for i in range(count)]
- def gen_pkts6(self, sw_intf, src, dst, count=1):
+ 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=self.payload)
+ ICMPv6EchoRequest(id=0, seq=1, data='X' * payload_size)
for i in range(count)]
@@ -470,8 +472,10 @@ class IpsecTun4(object):
self.assert_packet_counter_equal(self.tun4_encrypt_node_name, count)
self.assert_packet_counter_equal(self.tun4_decrypt_node_name, count)
- def verify_tun_44(self, p, count=1):
+ def verify_tun_44(self, p, count=1, payload_size=64, n_rx=None):
self.vapi.cli("clear errors")
+ if not n_rx:
+ n_rx = count
try:
config_tun_params(p, self.encryption_type, self.tun_if)
send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
@@ -484,16 +488,19 @@ class IpsecTun4(object):
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_host, count=count)
- recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if)
+ 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)
+ decrypt_pkts = []
for recv_pkt in recv_pkts:
try:
decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IP])
if not decrypt_pkt.haslayer(IP):
decrypt_pkt = IP(decrypt_pkt[Raw].load)
+ decrypt_pkts.append(decrypt_pkt)
self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4)
self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
- self.assert_packet_checksums_valid(decrypt_pkt)
except:
self.logger.debug(ppp("Unexpected packet:", recv_pkt))
try:
@@ -502,6 +509,9 @@ class IpsecTun4(object):
except:
pass
raise
+ pkts = reassemble4(decrypt_pkts)
+ for pkt in pkts:
+ self.assert_packet_checksums_valid(pkt)
finally:
self.logger.info(self.vapi.ppcli("show error"))
self.logger.info(self.vapi.ppcli("show ipsec"))