+# 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 / IP / UDP
+ - Direction 0 --> 1:
+ - Source IP address range: 20.0.0.0 - 20.0.3.231
+ - Destination IP address range: 12.0.0.2
+ - Source UDP port range: 1024 - 1038
+ - Destination UDP port range: 1024
+ - Direction 1 --> 0:
+ - Source IP address range: 12.0.0.2
+ - Destination IP address range: 200.0.0.0
+ - Source UDP port range: 1024
+ - Destination UDP port range: 1024 - 16023
+"""
+
+from trex.stl.api import *
+from profile_trex_stateless_base_class import TrafficStreamsBaseClass
+
+
+class TrafficStreams(TrafficStreamsBaseClass):
+ """Stream profile."""
+
+ def __init__(self):
+ """Initialization and setting of streams' parameters."""
+
+ super(TrafficStreamsBaseClass, self).__init__()
+
+ # IPs used in packet headers.
+ self.p1_src_start_ip = u"20.0.0.0"
+ self.p1_src_end_ip = u"20.0.3.231"
+ self.p1_dst_start_ip = u"12.0.0.2"
+
+ self.p2_src_start_ip = u"12.0.0.2"
+ self.p2_src_end_ip = u"12.0.0.2"
+ self.p2_dst_start_ip = u"200.0.0.0"
+
+ # UDP ports used in packet headers.
+ self.p1_src_start_udp_port = 1024
+ self.p1_src_end_udp_port = 1038
+ self.p1_dst_start_udp_port = 1024
+
+ self.p2_src_start_udp_port = 1024
+ self.p2_dst_start_udp_port = 1024
+ self.p2_dst_end_udp_port = 16023
+
+ def define_packets(self):
+ """Defines the packets to be sent from the traffic generator.
+
+ Packet definition: | ETH | IP | UDP |
+
+ :returns: Packets to be sent from the traffic generator.
+ :rtype: tuple
+ """
+
+ # Direction 0 --> 1
+ base_pkt_a = (
+ Ether() /
+ IP(
+ src=self.p1_src_start_ip,
+ dst=self.p1_dst_start_ip,
+ proto=17
+ ) /
+ UDP(
+ sport=self.p1_src_start_udp_port,
+ dport=self.p1_dst_start_udp_port
+ )
+ )
+ # Direction 1 --> 0
+ base_pkt_b = (
+ Ether() /
+ IP(
+ src=self.p2_src_start_ip,
+ dst=self.p2_dst_start_ip,
+ proto=17
+ ) /
+ UDP(
+ sport=self.p2_src_start_udp_port,
+ dport=self.p2_dst_start_udp_port
+ )
+ )
+
+ # Direction 0 --> 1
+ vm1 = STLScVmRaw(
+ [
+ STLVmTupleGen(
+ ip_max=self.p1_src_end_ip,
+ port_min=self.p1_src_start_udp_port,
+ port_max=self.p1_src_end_udp_port,
+ name=u"tuple"
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"tuple.ip",
+ pkt_offset=u"IP.src"
+ ),
+ STLVmFixIpv4(offset=u"IP"),
+ STLVmWrFlowVuar(
+ fv_name=u"tuple.port",
+ pkt_offset=u"UDP.sport"
+ )
+ ]
+ )
+ # Direction 0 --> 1
+ vm2 = STLScVmRaw(
+ [
+ STLVmFlowVar(
+ name=u"dport",
+ min_value=self.p2_dst_start_udp_port,
+ max_value=self.p2_dst_end_udp_port,
+ size=2,
+ op=u"inc"
+ ),
+ STLVmWrFlowVar(
+ fv_name=u"dport",
+ pkt_offset=u"UDP.dport"
+ )
+ ]
+ )
+
+ 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