GPL/traffic_profiles/trex/trex-sl-3n-ethip4udp-1u15p.py

   1 # Copyright (c) 2020 Cisco 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  - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
  18  - Packet: ETH / IP / UDP
  19  - Direction 0 --> 1:
  20    - Source IP address range:      20.0.0.0
  21    - Destination IP address range: 12.0.0.2
  22    - Source UDP port range:        1024 - 1038
  23    - Destination UDP port range:   1024
  24  - Direction 1 --> 0:
  25    - Source IP address range:      12.0.0.2
  26    - Destination IP address range: 200.0.0.0
  27    - Source UDP port range:        1024
  28    - Destination UDP port range:   1024 - 1038
  29 """
  30
  31 from trex.stl.api import *
  32 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
  33
  34
  35 class TrafficStreams(TrafficStreamsBaseClass):
  36     """Stream profile."""
  37
  38     def __init__(self):
  39         """Initialization and setting of streams' parameters."""
  40
  41         super(TrafficStreamsBaseClass, self).__init__()
  42
  43         # IPs used in packet headers.
  44         self.p1_src_start_ip = u"20.0.0.0"
  45         self.p1_src_end_ip = u"20.0.0.0"
  46         self.p1_dst_start_ip = u"12.0.0.2"
  47
  48         self.p2_src_start_ip = u"12.0.0.2"
  49         self.p2_src_end_ip = u"12.0.0.2"
  50         self.p2_dst_start_ip = u"200.0.0.0"
  51
  52         # UDP ports used in packet headers.
  53         self.p1_src_start_udp_port = 1024
  54         self.p1_src_end_udp_port = 1038
  55         self.p1_dst_start_udp_port = 1024
  56
  57         self.p2_src_start_udp_port = 1024
  58         self.p2_dst_start_udp_port = 1024
  59         self.p2_dst_end_udp_port = 1038
  60
  61     def define_packets(self):
  62         """Defines the packets to be sent from the traffic generator.
  63
  64         Packet definition: | ETH | IP | UDP |
  65
  66         :returns: Packets to be sent from the traffic generator.
  67         :rtype: tuple
  68         """
  69
  70         # Direction 0 --> 1
  71         base_pkt_a = (
  72             Ether() /
  73             IP(
  74                 src=self.p1_src_start_ip,
  75                 dst=self.p1_dst_start_ip,
  76                 proto=17
  77             ) /
  78             UDP(
  79                 sport=self.p1_src_start_udp_port,
  80                 dport=self.p1_dst_start_udp_port
  81             )
  82         )
  83         # Direction 1 --> 0
  84         base_pkt_b = (
  85             Ether() /
  86             IP(
  87                 src=self.p2_src_start_ip,
  88                 dst=self.p2_dst_start_ip,
  89                 proto=17
  90             ) /
  91             UDP(
  92                 sport=self.p2_src_start_udp_port,
  93                 dport=self.p2_dst_start_udp_port
  94             )
  95         )
  96
  97         # Direction 0 --> 1
  98         vm1 = STLScVmRaw(
  99             [
 100                 STLVmFlowVar(
 101                     name=u"sport",
 102                     min_value=self.p1_src_start_udp_port,
 103                     max_value=self.p1_src_end_udp_port,
 104                     size=2,
 105                     op=u"inc"
 106                 ),
 107                 STLVmWrFlowVar(
 108                     fv_name=u"sport",
 109                     pkt_offset=u"UDP.sport"
 110                 )
 111             ]
 112         )
 113         # Direction 0 --> 1
 114         vm2 = STLScVmRaw(
 115             [
 116                 STLVmFlowVar(
 117                     name=u"dport",
 118                     min_value=self.p2_dst_start_udp_port,
 119                     max_value=self.p2_dst_end_udp_port,
 120                     size=2,
 121                     op=u"inc"
 122                 ),
 123                 STLVmWrFlowVar(
 124                     fv_name=u"dport",
 125                     pkt_offset=u"UDP.dport"
 126                 )
 127             ]
 128         )
 129
 130         return base_pkt_a, base_pkt_b, vm1, vm2
 131
 132
 133 def register():
 134     """Register this traffic profile to T-rex.
 135
 136     Do not change this function.
 137
 138     :return: Traffic streams.
 139     :rtype: Object
 140     """
 141     return TrafficStreams()