VIRL test: Dot1Q-L2BD-vhost_user test (CSIT-502)

[csit.git] / resources / traffic_scripts / send_ip_icmp.py

diff --git a/resources/traffic_scripts/send_ip_icmp.py b/resources/traffic_scripts/send_ip_icmp.py
index 23e647f..b22b5d3 100755 (executable)
--- a/resources/traffic_scripts/send_ip_icmp.py
+++ b/resources/traffic_scripts/send_ip_icmp.py
@@ -12,14 +12,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-"""Traffic script that sends an IP ICMPv4/ICMPv6 packet
-from one interface to the other one."""
+"""Traffic script that sends an IP ICMPv4/ICMPv6 packet from one interface to
+the other one. Dot1q or Dot1ad tagging of the ethernet frame can be set.
+"""
 
 import sys
 import ipaddress
 
 from scapy.layers.inet import ICMP, IP
-from scapy.all import Ether
+from scapy.layers.l2 import Ether
+from scapy.layers.l2 import Dot1Q
 from scapy.layers.inet6 import ICMPv6EchoRequest
 from scapy.layers.inet6 import IPv6
 
@@ -61,14 +63,24 @@ def valid_ipv6(ip):
 
 def main():
     """Send IP ICMPv4/ICMPv6 packet from one traffic generator interface to
-    the other one.
+    the other one. Dot1q or Dot1ad tagging of the ethernet frame can be set.
     """
-    args = TrafficScriptArg(['src_mac', 'dst_mac', 'src_ip', 'dst_ip'])
+    args = TrafficScriptArg(['src_mac', 'dst_mac', 'src_ip', 'dst_ip'],
+                            ['encaps', 'vlan1', 'vlan2', 'encaps_rx',
+                             'vlan1_rx', 'vlan2_rx'])
 
     src_mac = args.get_arg('src_mac')
     dst_mac = args.get_arg('dst_mac')
     src_ip = args.get_arg('src_ip')
     dst_ip = args.get_arg('dst_ip')
+
+    encaps = args.get_arg('encaps')
+    vlan1 = args.get_arg('vlan1')
+    vlan2 = args.get_arg('vlan2')
+    encaps_rx = args.get_arg('encaps_rx')
+    vlan1_rx = args.get_arg('vlan1_rx')
+    vlan2_rx = args.get_arg('vlan2_rx')
+
     tx_if = args.get_arg('tx_if')
     rx_if = args.get_arg('rx_if')
 
@@ -80,15 +92,39 @@ def main():
     icmp_format = ''
     # Create empty ip ICMP packet and add padding before sending
     if valid_ipv4(src_ip) and valid_ipv4(dst_ip):
-        pkt_raw = (Ether(src=src_mac, dst=dst_mac) /
-                   IP(src=src_ip, dst=dst_ip) /
-                   ICMP())
+        if encaps == 'Dot1q':
+            pkt_raw = (Ether(src=src_mac, dst=dst_mac) /
+                       Dot1Q(vlan=int(vlan1)) /
+                       IP(src=src_ip, dst=dst_ip) /
+                       ICMP())
+        elif encaps == 'Dot1ad':
+            pkt_raw = (Ether(src=src_mac, dst=dst_mac, type=0x88A8) /
+                       Dot1Q(vlan=int(vlan1), type=0x8100) /
+                       Dot1Q(vlan=int(vlan2)) /
+                       IP(src=src_ip, dst=dst_ip) /
+                       ICMP())
+        else:
+            pkt_raw = (Ether(src=src_mac, dst=dst_mac) /
+                       IP(src=src_ip, dst=dst_ip) /
+                       ICMP())
         ip_format = 'IP'
         icmp_format = 'ICMP'
     elif valid_ipv6(src_ip) and valid_ipv6(dst_ip):
-        pkt_raw = (Ether(src=src_mac, dst=dst_mac) /
-                   IPv6(src=src_ip, dst=dst_ip) /
-                   ICMPv6EchoRequest())
+        if encaps == 'Dot1q':
+            pkt_raw = (Ether(src=src_mac, dst=dst_mac) /
+                       Dot1Q(vlan=int(vlan1)) /
+                       IPv6(src=src_ip, dst=dst_ip) /
+                       ICMPv6EchoRequest())
+        elif encaps == 'Dot1ad':
+            pkt_raw = (Ether(src=src_mac, dst=dst_mac, type=0x88A8) /
+                       Dot1Q(vlan=int(vlan1), type=0x8100) /
+                       Dot1Q(vlan=int(vlan2)) /
+                       IPv6(src=src_ip, dst=dst_ip) /
+                       ICMPv6EchoRequest())
+        else:
+            pkt_raw = (Ether(src=src_mac, dst=dst_mac) /
+                       IPv6(src=src_ip, dst=dst_ip) /
+                       ICMPv6EchoRequest())
         ip_format = 'IPv6'
         icmp_format = 'ICMPv6EchoRequest'
     else:
@@ -104,12 +140,35 @@ def main():
     if ether is None:
         raise RuntimeError('ICMP echo Rx timeout')
 
+    if encaps_rx:
+        if encaps_rx == 'Dot1q':
+            if not vlan1_rx:
+                vlan1_rx = vlan1
+            if not ether.haslayer(Dot1Q):
+                raise RuntimeError('Not VLAN tagged Eth frame received:\n{0}'
+                                   .format(ether.__repr__()))
+            elif ether[Dot1Q].vlan != int(vlan1_rx):
+                raise RuntimeError('Ethernet frame with wrong VLAN tag ({}) '
+                                   'received ({} expected):\n{}'.format(
+                    ether[Dot1Q].vlan, vlan1_rx, ether.__repr__()))
+        elif encaps_rx == 'Dot1ad':
+            if not vlan1_rx:
+                vlan1_rx = vlan1
+            if not vlan2_rx:
+                vlan2_rx = vlan2
+            # TODO
+            raise RuntimeError('Encapsulation {0} not implemented yet.'
+                               .format(encaps_rx))
+        else:
+            raise RuntimeError('Unsupported/unknown encapsulation expected: {0}'
+                               .format(encaps_rx))
+
     if not ether.haslayer(ip_format):
-        raise RuntimeError('Not an IP packet received {0}'
+        raise RuntimeError('Not an IP packet received:\n{0}'
                            .format(ether.__repr__()))
 
     if not ether.haslayer(icmp_format):
-        raise RuntimeError('Not an ICMP packet received {0}'
+        raise RuntimeError('Not an ICMP packet received:\n{0}'
                            .format(ether.__repr__()))
 
     sys.exit(0)