resources/traffic_profiles/trex/trex-sl-2n-ethip4udp-lb.py

   1 # Copyright (c) 2019 Intel and/or its affiliates.
   2 # Licensed under the Apache License, Version 2.0 (the "License");
   3 # you may not use this file except in compliance with the License.
   4 # You may obtain a copy of the License at:
   5 #
   6 #     http://www.apache.org/licenses/LICENSE-2.0
   7 #
   8 # Unless required by applicable law or agreed to in writing, software
   9 # distributed under the License is distributed on an "AS IS" BASIS,
  10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  11 # See the License for the specific language governing permissions and
  12 # limitations under the License.
  13
  14 """Stream profile for T-rex traffic generator.
  15
  16 Stream profile:
  17  - Packet: ETH / IP / UDP
  18  - Direction 0 --> 1:
  19    - Source IP address range:      192.168.50.74 - 192.168.50.79
  20    - Destination IP address range: 90.1.2.1
  21  - Direction 1 --> 0:
  22    - Source IP address range:      192.168.60.74 - 192.168.60.79
  23    - Destination IP address range: 192.168.50.74 - 192.168.50.79
  24 """
  25
  26 from trex.stl.api import *
  27 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
  28
  29
  30 class TrafficStreams(TrafficStreamsBaseClass):
  31     """Stream profile."""
  32
  33     def __init__(self):
  34         """Initialization and setting of streams' parameters."""
  35
  36         super(TrafficStreamsBaseClass, self).__init__()
  37
  38         # IPs used in packet headers.
  39         self.p1_src_start_ip = '192.168.50.74'
  40         self.p1_src_end_ip = '192.168.50.79'
  41         self.p1_dst_start_ip = '90.1.2.1'
  42
  43         self.p2_src_start_ip = '192.168.60.74'
  44         self.p2_src_end_ip = '192.168.60.79'
  45         self.p2_dst_start_ip = '192.168.50.74'
  46         self.p2_dst_end_ip = '192.168.50.79'
  47
  48         # UDP ports used in packet headers.
  49         self.p1_src_udp_port = 63
  50         self.p1_dst_udp_port = 20000
  51
  52         self.p2_src_udp_port = 3307
  53         self.p2_dst_udp_port = 63
  54
  55     def define_packets(self):
  56         """Defines the packets to be sent from the traffic generator.
  57
  58         Packet definition: | ETH | IP | UDP
  59
  60         :returns: Packets to be sent from the traffic generator.
  61         :rtype: tuple
  62         """
  63
  64         # Direction 0 --> 1
  65         base_pkt_a = Ether() / IP(src=self.p1_src_start_ip,
  66                                   dst=self.p1_dst_start_ip,
  67                                   proto=17) / UDP(sport=self.p1_src_udp_port,
  68                                                   dport=self.p1_dst_udp_port)
  69         # Direction 1 --> 0
  70         base_pkt_b = Ether() / IP(src=self.p2_src_start_ip,
  71                                   dst=self.p2_dst_start_ip,
  72                                   proto=17) / UDP(sport=self.p2_src_udp_port,
  73                                                   dport=self.p2_dst_udp_port)
  74
  75         # Direction 0 --> 1
  76         vm1 = STLScVmRaw([STLVmFlowVar(name="src",
  77                                        min_value=self.p1_src_start_ip,
  78                                        max_value=self.p1_src_end_ip,
  79                                        size=4, op="inc"),
  80                           STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
  81                           STLVmFixIpv4(offset="IP")])
  82         # Direction 1 --> 0
  83         vm2 = STLScVmRaw([STLVmFlowVar(name="src",
  84                                        min_value=self.p2_src_start_ip,
  85                                        max_value=self.p2_src_end_ip,
  86                                        size=4, op="inc"),
  87                           STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
  88                           STLVmFlowVar(name="dst",
  89                                        min_value=self.p2_dst_start_ip,
  90                                        max_value=self.p2_dst_end_ip,
  91                                        size=4, op="inc"),
  92                           STLVmWrFlowVar(fv_name="dst", pkt_offset="IP.dst"),
  93                           STLVmFixIpv4(offset="IP")])
  94
  95         return base_pkt_a, base_pkt_b, vm1, vm2
  96
  97
  98 def register():
  99     """Register this traffic profile to T-rex.
 100
 101     Do not change this function.
 102
 103     :return: Traffic streams.
 104     :rtype: Object
 105     """
 106     return TrafficStreams()