+++ /dev/null
-# Copyright (c) 2021 Cisco and/or its affiliates.
-#
-# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
-#
-# Licensed under the Apache License 2.0 or
-# GNU General Public License v2.0 or later; you may not use this file
-# except in compliance with one of these Licenses. You
-# may obtain a copy of the Licenses at:
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-# https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
-#
-# Note: If this file is linked with Scapy, which is GPLv2+, your use of it
-# must be under GPLv2+. If at any point in the future it is no longer linked
-# with Scapy (or other GPLv2+ licensed software), you are free to choose
-# Apache 2.
-#
-# 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:
- - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
- - Direction 0 --> 1:
- - Packet: ETH / IP
- - Source IP address range: 10.128.1.0 - 10.129.0.255
- - Destination IP address range: 10.0.1.0 - 10.1.0.255
- - Direction 1 --> 0:
- - Packet: ETH / IP / UDP / GENEVE / ETH / IP
- - Outer Source IP address range: 1.1.1.1
- - Outer Destination IP address range: 1.1.1.2
- - Inner Source IP address range: 10.0.1.0 - 10.1.0.255
- - Inner Destination IP address range: 10.128.1.0 - 10.129.0.255
- - Source UDP port range: 1024 - 65535
- - Destination UDP port range: 6081
-"""
-
-from ctypes import c_int
-from ipaddress import IPv4Address
-
-from scapy.contrib.geneve import GENEVE
-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__()
-
- # Nr. of GENEVE tunnels
- self.n_tunnels = 256
- # VNIs used in GENEVE headers of Direction 1 --> 0.
- self.p2_geneve_start_vni = 1
-
- # IPs used in packet headers of Direction 0 --> 1.
- self.p1_src_start_ip = u"10.128.1.0"
- self.p1_dst_start_ip = u"10.0.1.0"
-
- # IPs used in packet headers of Direction 1 --> 0.
- self.p2_outer_src_ip = u"1.1.1.1"
- self.p2_outer_dst_ip = u"1.1.1.2"
-
- self.p2_inner_src_start_ip = u"10.0.1.0"
- self.p2_inner_dst_start_ip = u"10.128.1.0"
-
- # MACs used in inner ethernet header of Direction 1 --> 0.
- self.p2_inner_dst_mac = u"d0:0b:ee:d0:00:00"
-
- # UDP ports used in packet headers of Direction 1 --> 0.
- self.p2_udp_sport_start = 1024
- self.p2_udp_dport = 6081
-
- 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
- """
- p1_src_start_ip_int = int(IPv4Address(self.p1_src_start_ip))
- p1_dst_start_ip_int = int(IPv4Address(self.p1_dst_start_ip))
- p2_inner_src_start_ip_int = int(IPv4Address(self.p2_inner_src_start_ip))
- p2_inner_dst_start_ip_int = int(IPv4Address(self.p2_inner_dst_start_ip))
-
- # Direction 0 --> 1
- base_pkt_a = (
- Ether() /
- IP(
- src=self.p1_src_start_ip,
- dst=self.p1_dst_start_ip,
- proto=61
- )
- )
- # Direction 1 --> 0
- base_pkt_b = (
- Ether() /
- IP(
- src=self.p2_outer_src_ip,
- dst=self.p2_outer_dst_ip,
- proto=17
- ) /
- UDP(
- sport=self.p2_udp_sport_start,
- dport=self.p2_udp_dport
- ) /
- GENEVE(vni=self.p2_geneve_start_vni) /
- Ether(dst=self.p2_inner_dst_mac) /
- IP(
- src=self.p2_inner_src_start_ip,
- dst=self.p2_inner_dst_start_ip,
- proto=61
- )
- )
- base_pkt_b /= Raw(load=self._gen_payload(110 - len(base_pkt_b)))
- # Direction 0 --> 1
- vm1 = STLScVmRaw(
- [
- STLVmFlowVar(
- name=u"ip_src",
- min_value=p1_src_start_ip_int,
- max_value=p1_src_start_ip_int + self.n_tunnels * 256 - 1,
- size=4,
- op=u"inc"
- ),
- STLVmWrFlowVar(
- fv_name=u"ip_src",
- pkt_offset=u"IP.src"
- ),
- STLVmFlowVar(
- name=u"ip_dst",
- min_value=p1_dst_start_ip_int,
- max_value=p1_dst_start_ip_int + self.n_tunnels * 256 - 1,
- size=4,
- op=u"inc"
- ),
- STLVmWrFlowVar(
- fv_name=u"ip_dst",
- pkt_offset=u"IP.dst"
- ),
- STLVmFixIpv4(
- offset=u"IP"
- )
- ]
- )
- # Direction 1 --> 0
- vm2 = STLScVmRaw(
- [
- STLVmFlowVar(
- name=u"ip",
- min_value=0,
- max_value=self.n_tunnels * 256 - 1,
- size=4,
- op=u"inc"
- ),
- STLVmWrMaskFlowVar(
- fv_name=u"ip",
- pkt_cast_size=4,
- mask=0xffffffff,
- add_value=p2_inner_src_start_ip_int,
- pkt_offset=u"IP:1.src"
- ),
- STLVmWrMaskFlowVar(
- fv_name=u"ip",
- pkt_cast_size=4,
- mask=0xffffffff,
- add_value=p2_inner_dst_start_ip_int,
- pkt_offset=u"IP:1.dst"
- ),
- STLVmWrMaskFlowVar(
- fv_name=u"ip",
- pkt_cast_size=2,
- mask=0xffff,
- add_value=self.p2_udp_sport_start,
- pkt_offset=u"UDP.sport"
- ),
- STLVmWrMaskFlowVar(
- fv_name=u"ip",
- pkt_cast_size=4,
- mask=0xffffff00,
- add_value=(self.p2_geneve_start_vni << 8),
- pkt_offset=u"GENEVE.vni"
- ),
- STLVmWrMaskFlowVar(
- fv_name=u"ip",
- pkt_cast_size=4,
- mask=0xffffff,
- shift=-8,
- offset_fixup=2,
- add_value=c_int(
- int(
- self.p2_inner_dst_mac.replace(u":", u"")[6:12], 16
- ) << 8
- ).value,
- pkt_offset=u"Ether:1.dst"
- ),
- STLVmFixIpv4(
- offset=u"IP:1"
- ),
- STLVmFixIpv4(
- offset=u"IP"
- ),
- STLVmFixChecksumHw(
- l3_offset=u"IP",
- l4_offset=u"UDP",
- l4_type=CTRexVmInsFixHwCs.L4_TYPE_UDP
- )
- ]
- )
-
- 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()
Code Review / csit.git / blobdiff