resources/traffic_profiles/trex/trex-sl-3n-ethip4udp-2000u15p.py

   1 # Copyright (c) 2017 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 - 20.0.7.207
  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 - 31022
  29 """
  30
  31 from trex_stl_lib.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 = '20.0.0.0'
  45         self.p1_src_end_ip = '20.0.7.207'
  46         self.p1_dst_start_ip = '12.0.0.2'
  47
  48         self.p2_src_start_ip = '12.0.0.2'
  49         self.p2_src_end_ip = '12.0.0.2'
  50         self.p2_dst_start_ip = '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 = 31022
  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 = (Ether() /
  72                       IP(src=self.p1_src_start_ip,
  73                          dst=self.p1_dst_start_ip,
  74                          proto=17) /
  75                       UDP(sport=self.p1_src_start_udp_port,
  76                           dport=self.p1_dst_start_udp_port))
  77         # Direction 1 --> 0
  78         base_pkt_b = (Ether() /
  79                       IP(src=self.p2_src_start_ip,
  80                          dst=self.p2_dst_start_ip,
  81                          proto=17) /
  82                       UDP(sport=self.p2_src_start_udp_port,
  83                           dport=self.p2_dst_start_udp_port))
  84
  85         # Direction 0 --> 1
  86         vm1 = STLScVmRaw([
  87             STLVmTupleGen(ip_min=self.p1_src_start_ip,
  88                           ip_max=self.p1_src_end_ip,
  89                           port_min=self.p1_src_start_udp_port,
  90                           port_max=self.p1_src_end_udp_port,
  91                           name="tuple"),
  92             STLVmWrFlowVar(fv_name="tuple.ip", pkt_offset="IP.src"),
  93             STLVmFixIpv4(offset="IP"),
  94             STLVmWrFlowVar(fv_name="tuple.port", pkt_offset="UDP.sport")
  95         ])
  96         # Direction 0 --> 1
  97         vm2 = STLScVmRaw([
  98             STLVmFlowVar(name="dport",
  99                          min_value=self.p2_dst_start_udp_port,
 100                          max_value=self.p2_dst_end_udp_port,
 101                          size=2, op="inc"),
 102             STLVmWrFlowVar(fv_name="dport", pkt_offset="UDP.dport")
 103         ])
 104
 105         return base_pkt_a, base_pkt_b, vm1, vm2
 106
 107
 108 def register():
 109     """Register this traffic profile to T-rex.
 110
 111     Do not change this function.
 112
 113     :return: Traffic streams.
 114     :rtype: Object
 115     """
 116     return TrafficStreams()