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# Copyright (c) 2019 Intel 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:
- Packet: ETH / IP / UDP
- Direction 0 --> 1:
- Source IP address range: 192.168.50.74 - 192.168.50.79
- Destination IP address range: 90.1.2.1
- Direction 1 --> 0:
- Source IP address range: 192.168.60.74 - 192.168.60.79
- Destination IP address range: 192.168.50.74 - 192.168.50.79
"""
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 = '192.168.50.74'
self.p1_src_end_ip = '192.168.50.79'
self.p1_dst_start_ip = '90.1.2.1'
self.p2_src_start_ip = '192.168.60.74'
self.p2_src_end_ip = '192.168.60.79'
self.p2_dst_start_ip = '192.168.50.74'
self.p2_dst_end_ip = '192.168.50.79'
# UDP ports used in packet headers.
self.p1_src_udp_port = 63
self.p1_dst_udp_port = 20000
self.p2_src_udp_port = 3307
self.p2_dst_udp_port = 63
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_udp_port,
dport=self.p1_dst_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_udp_port,
dport=self.p2_dst_udp_port)
# Direction 0 --> 1
vm1 = STLScVmRaw([STLVmFlowVar(name="src",
min_value=self.p1_src_start_ip,
max_value=self.p1_src_end_ip,
size=4, op="inc"),
STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
STLVmFixIpv4(offset="IP")])
# Direction 1 --> 0
vm2 = STLScVmRaw([STLVmFlowVar(name="src",
min_value=self.p2_src_start_ip,
max_value=self.p2_src_end_ip,
size=4, op="inc"),
STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
STLVmFlowVar(name="dst",
min_value=self.p2_dst_start_ip,
max_value=self.p2_dst_end_ip,
size=4, op="inc"),
STLVmWrFlowVar(fv_name="dst", pkt_offset="IP.dst"),
STLVmFixIpv4(offset="IP")])
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()
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