VPP-1508: Use scapy.compat to manage packet level library differences.

Change-Id: Icdf6abc9e53d33b26fd1d531c7dda6be0bb9cb55
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>

1 files changed, 29 insertions, 19 deletions

diff --git a/test/test_acl_plugin_macip.py b/test/test_acl_plugin_macip.py
index d2d684abc11..6f99646e6e2 100644
--- a/test/test_acl_plugin_macip.py
+++ b/test/test_acl_plugin_macip.py
@@ -3,12 +3,14 @@ from __future__ import print_function
 """ACL plugin - MACIP tests
 """
 import binascii
+import ipaddress
 import random
 from socket import inet_ntop, inet_pton, AF_INET, AF_INET6
 from struct import pack, unpack
 import re
 import unittest
 
+import scapy.compat
 from scapy.packet import Raw
 from scapy.layers.l2 import Ether
 from scapy.layers.inet import IP, UDP
@@ -194,8 +196,10 @@ class MethodHolder(VppTestCase):
         return acls
 
     def create_rules(self, mac_type=EXACT_MAC, ip_type=EXACT_IP,
-                     acl_count=1, rules_count=[1]):
+                     acl_count=1, rules_count=None):
         acls = []
+        if rules_count is None:
+            rules_count = [1]
         src_mac = int("220000dead00", 16)
         for acl in range(2, (acl_count+1) * 2):
             rules = []
@@ -248,7 +252,7 @@ class MethodHolder(VppTestCase):
                     ip4[3] = 0
                     ip6[8] = random.randint(100, 200)
                     ip6[15] = 0
-                ip_pack = ''
+                ip_pack = b''
                 for j in range(0, len(ip)):
                     ip_pack += pack('<B', int(ip[j]))
 
@@ -256,8 +260,9 @@ class MethodHolder(VppTestCase):
                          'is_ipv6': is_ip6,
                          'src_ip_addr': ip_pack,
                          'src_ip_prefix_len': ip_len,
-                         'src_mac': mac.replace(':', '').decode('hex'),
-                         'src_mac_mask': mask.replace(':', '').decode('hex')})
+                         'src_mac': binascii.unhexlify(mac.replace(':', '')),
+                         'src_mac_mask': binascii.unhexlify(
+                             mask.replace(':', ''))})
                 rules.append(rule)
                 if ip_type == self.WILD_IP:
                     break
@@ -275,7 +280,7 @@ class MethodHolder(VppTestCase):
     def verify_macip_acls(self, acl_count, rules_count, expected_count=2):
         reply = self.macip_acl_dump_debug()
         for acl in range(2, (acl_count+1) * 2):
-            self.assertEqual(reply[acl - 2].count, rules_count[acl/2-1])
+            self.assertEqual(reply[acl - 2].count, rules_count[acl//2-1])
 
         self.vapi.macip_acl_interface_get()
 
@@ -410,30 +415,32 @@ class MethodHolder(VppTestCase):
                         sub_ip[15] = random.randint(200, 255)
                     elif ip_type == self.SUBNET_IP:
                         if denyIP:
-                            sub_ip[2] = str(int(sub_ip[2]) + 1)
+                            sub_ip[2] = int(sub_ip[2]) + 1
                         sub_ip[14] = random.randint(100, 199)
                         sub_ip[15] = random.randint(200, 255)
-                    src_ip6 = inet_ntop(AF_INET6, str(bytearray(sub_ip)))
+                    packed_src_ip6 = b''.join(
+                        [scapy.compat.chb(x) for x in sub_ip])
+                    src_ip6 = inet_ntop(AF_INET6, packed_src_ip6)
                 packet /= IPv6(src=src_ip6, dst=dst_ip6)
             else:
                 if ip_type != self.EXACT_IP:
                     sub_ip = ip_rule.split('.')
                     if ip_type == self.WILD_IP:
-                        sub_ip[0] = str(random.randint(1, 49))
-                        sub_ip[1] = str(random.randint(50, 99))
-                        sub_ip[2] = str(random.randint(100, 199))
-                        sub_ip[3] = str(random.randint(200, 255))
+                        sub_ip[0] = random.randint(1, 49)
+                        sub_ip[1] = random.randint(50, 99)
+                        sub_ip[2] = random.randint(100, 199)
+                        sub_ip[3] = random.randint(200, 255)
                     elif ip_type == self.SUBNET_IP:
                         if denyIP:
-                            sub_ip[1] = str(int(sub_ip[1])+1)
-                        sub_ip[2] = str(random.randint(100, 199))
-                        sub_ip[3] = str(random.randint(200, 255))
-                    src_ip4 = ".".join(sub_ip)
+                            sub_ip[1] = int(sub_ip[1])+1
+                        sub_ip[2] = random.randint(100, 199)
+                        sub_ip[3] = random.randint(200, 255)
+                    src_ip4 = '.'.join(['{!s}'.format(x) for x in sub_ip])
                 packet /= IP(src=src_ip4, dst=dst_ip4, frag=0, flags=0)
 
             packet /= UDP(sport=src_port, dport=dst_port)/Raw(payload)
 
-            packet[Raw].load += " mac:"+src_mac
+            packet[Raw].load += b" mac:%s" % scapy.compat.raw(src_mac)
 
             size = self.pg_if_packet_sizes[p % len(self.pg_if_packet_sizes)]
             if isinstance(src_if, VppSubInterface):
@@ -485,7 +492,9 @@ class MethodHolder(VppTestCase):
                         sub_ip = list(unpack('<16B', inet_pton(AF_INET6, ip)))
                         for i in range(8, 16):
                             sub_ip[i] = 0
-                        ip = inet_ntop(AF_INET6, str(bytearray(sub_ip)))
+                        packed_ip = b''.join(
+                            [scapy.compat.chb(x) for x in sub_ip])
+                        ip = inet_ntop(AF_INET6, packed_ip)
             else:
                 if ip_type == self.WILD_IP:
                     ip = "0.0.0.0"
@@ -540,8 +549,9 @@ class MethodHolder(VppTestCase):
                     'is_ipv6': is_ip6,
                     'src_ip_addr': ip_rule,
                     'src_ip_prefix_len': prefix_len,
-                    'src_mac': mac_rule.replace(':', '').decode('hex'),
-                    'src_mac_mask': mac_mask.replace(':', '').decode('hex')})
+                    'src_mac': binascii.unhexlify(mac_rule.replace(':', '')),
+                    'src_mac_mask': binascii.unhexlify(
+                        mac_mask.replace(':', ''))})
                 macip_rules.append(macip_rule)
 
         # deny all other packets