--- /dev/null
+# Copyright (c) 2019 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Stream profile for T-rex traffic generator.
+
+Stream profile:
+ - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
+ - Packet: ETH / IP / VXLAN / ETH / IP
+ - Direction 0 --> 1:
+ - Source IP address: 172.17.0.2
+ - Destination IP address: 172.16.0.1
+ - Source UDP port: random([1024-65535])
+ - Destination UDP port: 4789
+ - VXLAN VNI: 0
+ - Payload source MAC address: 00:aa:aa:00:00:[00..ff]
+ - Payload source IP address: 10.0.0.2
+ - Payload destination MAC address: 00:bb:bb:00:00:[00..ff]
+ - Payload destination IP address: 10.0.0.1
+ - Direction 1 --> 0:
+ - Source IP address: 172.27.0.2
+ - Destination IP address: 172.26.0.1
+ - Source UDP port: random([1024-65535])
+ - Destination UDP port: 4789
+ - VXLAN VNI: 0
+ - Payload source MAC address: 00:bb:bb:00:00:[00..ff]
+ - Payload source IP address: 10.0.0.1
+ - Payload destination MAC address: 00:aa:aa:00:00:[00..ff]
+ - Payload destination IP address: 10.0.0.2
+"""
+
+from trex.stl.api import *
+from profile_trex_stateless_base_class import TrafficStreamsBaseClass
+
+# RFC 7348 - Virtual eXtensible Local Area Network (VXLAN):
+# A Framework for Overlaying Virtualized Layer 2 Networks over Layer 3 Networks
+# http://tools.ietf.org/html/rfc7348
+_VXLAN_FLAGS = list('R'*24 + "RRRIRRRRR")
+
+
+class VXLAN(Packet):
+ name = 'VXLAN'
+ fields_desc = [FlagsField('flags', 0x08000000, 32, _VXLAN_FLAGS),
+ ThreeBytesField('vni', 0),
+ XByteField('reserved', 0x00)]
+
+ def mysummary(self):
+ return self.sprintf("VXLAN (vni=%VXLAN.vni%)")
+
+
+bind_layers(UDP, VXLAN, dport=4789)
+bind_layers(VXLAN, Ether)
+
+
+class TrafficStreams(TrafficStreamsBaseClass):
+ """Stream profile."""
+
+ def __init__(self):
+ """Initialization and setting of streams' parameters."""
+
+ super(TrafficStreamsBaseClass, self).__init__()
+
+ self.nf_chains = 1
+
+ def define_packets(self):
+ """Defines the packets to be sent from the traffic generator.
+
+ Packet definition: | ETH | IP | VXLAN | ETH | IP
+
+ :returns: Packets to be sent from the traffic generator.
+ :rtype: tuple
+ """
+
+ # Direction 0 --> 1
+ base_pkt_a = (
+ Ether()/
+ IP(src='172.17.0.2', dst='172.16.0.1')/
+ UDP(sport=1024, dport=4789)/
+ VXLAN(vni=0)/
+ Ether(src='00:aa:aa:00:00:00', dst='00:bb:bb:00:00:00')/
+ IP(src='10.0.0.2', dst='10.0.0.1', proto=61))
+
+ # Direction 1 --> 0
+ base_pkt_b = (
+ Ether()/
+ IP(src='172.27.0.2', dst='172.26.0.1')/
+ UDP(sport=1024, dport=4789)/
+ VXLAN(vni=0)/
+ Ether(src='00:bb:bb:00:00:00', dst='00:aa:aa:00:00:00')/
+ IP(src='10.0.0.1', dst='10.0.0.2', proto=61))
+
+ # Direction 0 --> 1
+ vm1 = STLScVmRaw([
+ STLVmFlowVar(name='nf_id', size=1, op='inc',
+ min_value=0, max_value=self.nf_chains - 1),
+ STLVmFlowVar(name='in_mac', size=2, op='inc',
+ min_value=0, max_value=255),
+ STLVmFlowVar(name='in_ip', size=1, op='inc',
+ min_value=0, max_value=255),
+ STLVmFlowVar(name='src_port', size=2, op='random',
+ min_value=1024, max_value=65535),
+ STLVmWrFlowVar(fv_name='nf_id', pkt_offset=28),
+ STLVmWrFlowVar(fv_name='src_port', pkt_offset='UDP.sport'),
+ STLVmWrFlowVar(fv_name='nf_id', pkt_offset=48),
+ STLVmWrFlowVar(fv_name='in_mac', pkt_offset=54),
+ STLVmWrFlowVar(fv_name='in_mac', pkt_offset=60),
+ STLVmFixIpv4(offset = 'IP')
+ ])
+
+ # Direction 1 --> 0
+ vm2 = STLScVmRaw([
+ STLVmFlowVar(name='nf_id', size=1, op='inc',
+ min_value=0, max_value=self.nf_chains - 1),
+ STLVmFlowVar(name='in_mac', size=2, op='inc',
+ min_value=0, max_value=255),
+ STLVmFlowVar(name='in_ip', size=1, op='inc',
+ min_value=0, max_value=255),
+ STLVmFlowVar(name='src_port', size=2, op='random',
+ min_value=1024, max_value=65535),
+ STLVmWrFlowVar(fv_name='nf_id', pkt_offset=28),
+ STLVmWrFlowVar(fv_name='src_port', pkt_offset='UDP.sport'),
+ STLVmWrFlowVar(fv_name='nf_id', pkt_offset=48),
+ STLVmWrFlowVar(fv_name='in_mac', pkt_offset=54),
+ STLVmWrFlowVar(fv_name='in_mac', pkt_offset=60),
+ STLVmFixIpv4(offset = 'IP')
+ ])
+
+ return base_pkt_a, base_pkt_b, vm1, vm2
+
+def register():
+ """Register this traffic profile to T-rex.
+
+ Do not change this function.
+
+ :return: Traffic streams.
+ :rtype: Object
+ """
+ return TrafficStreams()
+
Code Review / csit.git / blobdiff