--- /dev/null
+# Copyright (c) 2020 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 / DOT1Q / IP / VXLAN / ETH / IP
+ - Direction 0 --> 1:
+ - VLAN range: 100
+ - Source IP address: 172.17.[0..3].2
+ - Destination IP address: 172.16.0.1
+ - Source UDP port: random([1024..65535])
+ - Destination UDP port: 4789
+ - VXLAN VNI: [0..3]
+ - Payload source MAC address: 00:aa:aa:00:00:[00..ff]
+ - Payload source IP address: 10.0.[0..255].2
+ - Payload destination MAC address: 00:bb:bb:00:00:[00..ff]
+ - Payload destination IP address: 10.0.[0..255].1
+ - Direction 1 --> 0:
+ - VLAN range: 200
+ - Source IP address: 172.27.[0..3].2
+ - Destination IP address: 172.26.0.1
+ - Source UDP port: random([1024..65535])
+ - Destination UDP port: 4789
+ - VXLAN VNI: [0..3]
+ - Payload source MAC address: 00:bb:bb:00:00:[00..ff]
+ - Payload source IP address: 10.0.[0..255].1
+ - Payload destination MAC address: 00:aa:aa:00:00:[00..ff]
+ - Payload destination IP address: 10.0.[0..255].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(u"R"*24 + u"RRRIRRRRR")
+
+
+class VXLAN(Packet):
+ name=u"VXLAN"
+ fields_desc = [
+ FlagsField(u"flags", 0x08000000, 32, _VXLAN_FLAGS),
+ ThreeBytesField(u"vni", 0),
+ XByteField(u"reserved", 0x00)
+ ]
+
+ def mysummary(self):
+ return self.sprintf(u"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 = 4
+
+ def define_packets(self):
+ """Defines the packets to be sent from the traffic generator.
+
+ Packet definition: | ETH | DOT1Q | IP | VXLAN | ETH | IP
+
+ :returns: Packets to be sent from the traffic generator.
+ :rtype: tuple
+ """
+
+ # Direction 0 --> 1
+ base_pkt_a = (
+ Ether()/
+ Dot1Q(
+ vlan=100
+ )/
+ IP(
+ src=u"172.17.0.2",
+ dst=u"172.16.0.1"
+ )/
+ UDP(
+ sport=1024,
+ dport=4789
+ )/
+ VXLAN(
+ vni=0
+ )/
+ Ether(
+ src=u"00:aa:aa:00:00:00",
+ dst=u"00:bb:bb:00:00:00"
+ )/
+ IP(
+ src=u"10.0.0.2",
+ dst=u"10.0.0.1",
+ proto=61
+ )
+ )
+
+ # Direction 1 --> 0
+ base_pkt_b = (
+ Ether()/
+ Dot1Q(
+ vlan=200
+ ) /
+ IP(
+ src=u"172.27.0.2",
+ dst=u"172.26.0.1"
+ )/
+ UDP(
+ sport=1024,
+ dport=4789
+ )/
+ VXLAN(
+ vni=0
+ )/
+ Ether(
+ src=u"00:bb:bb:00:00:00",
+ dst=u"00:aa:aa:00:00:00"
+ )/
+ IP(
+ src=u"10.0.0.1",
+ dst=u"10.0.0.2",
+ proto=61
+ )
+ )
+
+ # Direction 0 --> 1
+ vm1 = STLScVmRaw(
+ [
+ STLVmFlowVar(
+ name=u"nf_id",
+ size=1,
+ op=u"inc",
+ min_value=0,
+ max_value=self.nf_chains - 1
+ ),
+ STLVmFlowVar(
+ name=u"in_mac",
+ size=2,
+ op=u"inc",
+ min_value=0,
+ max_value=255
+ ),
+ STLVmFlowVar(
+ name=u"in_ip",
+ size=1,
+ op=u"inc",
+ min_value=0,
+ max_value=255
+ ),
+ STLVmFlowVar(
+ name=u"src_port",
+ size=2,
+ op=u"random",
+ min_value=1024,
+ max_value=65535
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"nf_id",
+ pkt_offset=32
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"src_port",
+ pkt_offset=u"UDP.sport"
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"nf_id",
+ pkt_offset=52
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"in_mac",
+ pkt_offset=58
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"in_mac",
+ pkt_offset=64
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"in_ip",
+ pkt_offset=82
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"in_ip",
+ pkt_offset=86
+ ),
+ STLVmFixChecksumHw(
+ l3_offset="IP:{}".format(0),
+ l4_offset="UDP:{}".format(0),
+ l4_type=CTRexVmInsFixHwCs.L4_TYPE_UDP
+ )
+ ]
+ )
+
+ # Direction 1 --> 0
+ vm2 = STLScVmRaw(
+ [
+ STLVmFlowVar(
+ name=u"nf_id",
+ size=1,
+ op=u"inc",
+ min_value=0,
+ max_value=self.nf_chains - 1
+ ),
+ STLVmFlowVar(
+ name=u"in_mac",
+ size=2,
+ op=u"inc",
+ min_value=0,
+ max_value=255
+ ),
+ STLVmFlowVar(
+ name=u"in_ip",
+ size=1,
+ op=u"inc",
+ min_value=0,
+ max_value=255
+ ),
+ STLVmFlowVar(
+ name=u"src_port",
+ size=2,
+ op=u"random",
+ min_value=1024,
+ max_value=65535
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"nf_id",
+ pkt_offset=32
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"src_port",
+ pkt_offset=u"UDP.sport"
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"nf_id",
+ pkt_offset=52
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"in_mac",
+ pkt_offset=58
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"in_mac",
+ pkt_offset=64
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"in_ip",
+ pkt_offset=82
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"in_ip",
+ pkt_offset=86
+ ),
+ STLVmFixChecksumHw(
+ l3_offset="IP:{}".format(0),
+ l4_offset="UDP:{}".format(0),
+ l4_type=CTRexVmInsFixHwCs.L4_TYPE_UDP
+ )
+ ]
+ )
+
+ 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