1 # Copyright (c) 2021 Cisco and/or its affiliates.
3 # SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
5 # Licensed under the Apache License 2.0 or
6 # GNU General Public License v2.0 or later; you may not use this file
7 # except in compliance with one of these Licenses. You
8 # may obtain a copy of the Licenses at:
10 # http://www.apache.org/licenses/LICENSE-2.0
11 # https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
13 # Note: If this file is linked with Scapy, which is GPLv2+, your use of it
14 # must be under GPLv2+. If at any point in the future it is no longer linked
15 # with Scapy (or other GPLv2+ licensed software), you are free to choose
18 # Unless required by applicable law or agreed to in writing, software
19 # distributed under the License is distributed on an "AS IS" BASIS,
20 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
21 # See the License for the specific language governing permissions and
22 # limitations under the License.
24 """Stream profile for T-rex traffic generator.
27 - One stream sent in directions 0 --> 1.
28 - Packet: ETH / IP / UDP
30 - Source IP address range: 192.168.0.0 - 192.168.15.255
31 - Destination IP address range: 20.0.0.0 - 20.0.15.255
32 - Source UDP port range: 1024 - 1086
33 - Destination UDP port range: 8080
36 from trex.stl.api import *
37 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
40 class TrafficStreams(TrafficStreamsBaseClass):
44 """Initialization and setting of streams' parameters."""
46 super(TrafficStreamsBaseClass, self).__init__()
48 # IPs used in packet headers.
49 self.p1_src_start_ip = u"192.168.0.0"
50 self.p1_src_end_ip = u"192.168.15.255"
51 self.p1_dst_start_ip = u"20.0.0.0"
52 self.p1_dst_end_ip = u"20.0.15.255"
54 # UDP ports used in packet headers.
55 self.p1_src_start_udp_port = 1024
56 self.p1_src_end_udp_port = 1086
57 self.p1_dst_start_udp_port = 8080
58 self.p1_dst_end_udp_port = 8080
60 def define_packets(self):
61 """Defines the packets to be sent from the traffic generator.
63 Packet definition: | ETH | IP | UDP |
65 :returns: Packets to be sent from the traffic generator.
73 src=self.p1_src_start_ip,
74 dst=self.p1_dst_start_ip,
78 sport=self.p1_src_start_udp_port,
79 dport=self.p1_dst_start_udp_port
90 min_value=self.p1_src_start_ip,
91 max_value=self.p1_src_end_ip,
96 min_value=self.p1_src_start_udp_port,
97 max_value=self.p1_src_end_udp_port,
101 min_value=self.p1_dst_start_ip,
102 max_value=self.p1_dst_end_ip,
105 vm1.var(name="dport",
106 min_value=self.p1_dst_start_udp_port,
107 max_value=self.p1_dst_end_udp_port,
110 vm1.write(fv_name="sIP", pkt_offset="IP.src")
111 vm1.write(fv_name="sport", pkt_offset="UDP.sport")
112 vm1.write(fv_name="dIP", pkt_offset="IP.dst")
113 vm1.write(fv_name="dport", pkt_offset="UDP.dport")
114 vm1.fix_chksum(offset='IP')
118 return base_pkt_a, base_pkt_b, vm1, vm2
121 """Register this traffic profile to T-rex.
123 Do not change this function.
125 :return: Traffic streams.
128 return TrafficStreams()