src/plugins/oddbuf

# Copyright (c) 2017 Cisco 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:
 - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
 - Packet: ETH / IP /
 - Direction 0 --> 1:
   - Source IP address range:      10.10.10.1 - 10.10.10.254
   - Destination IP address range: 20.20.20.1
 - Direction 1 --> 0:
   - Source IP address range:      20.20.20.1 - 20.20.20.254
   - Destination IP address range: 10.10.10.1
"""

from trex_stl_lib.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 = '10.10.10.1'
        self.p1_src_end_ip = '10.10.10.254'
        self.p1_dst_start_ip = '20.20.20.1'

        self.p2_src_start_ip = '20.20.20.1'
        self.p2_src_end_ip = '20.20.20.254'
        self.p2_dst_start_ip = '10.10.10.1'

    def define_packets(self):
        """Defines the packets to be sent from the traffic generator.

        Packet definition: | ETH | IP |

        :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=61)
        # Direction 1 --> 0
        base_pkt_b = Ether() / IP(src=self.p2_src_start_ip,
                                  dst=self.p2_dst_start_ip,
                                  proto=61)

        # 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")],
                         split_by_field="src")
        # 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"),
                          STLVmFixIpv4(offset="IP")],
                         split_by_field="src")

        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()
Age	Commit message (Collapse)	Author	Files	Lines
2021-09-17	misc: put devtools plugins into separate component/package	Damjan Marion	1	-0/+3
	Type: make Change-Id: I2958e9eddadee6434766ecd3cdb3b9cea742ed64 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-10-21	misc: minimize dependencies on udp.h	Florin Coras	1	-1/+0
	Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id13f33843b230a1d169560742c4f7b2dc17d8718
2020-10-07	misc: Purge unused pg includes	Neale Ranns	1	-1/+0
	Type: style Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I26a19e42076e031ec5399d5ca05cb49fd6fbe1cd
2019-10-03	oddbuf: remove api boilerplate	Ole Troan	6	-210/+8
	Type: refactor Change-Id: Ic4922da46bf941249dd74b1a8bc6a98c62c099b7 Signed-off-by: Ole Troan <ot@cisco.com>
2019-09-09	misc: fix coverity warning in the oddbuf plugin	Dave Barach	9	-134/+21
	Clean up license / copyright headers Type: fix Ticket: VPP-1771 Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: Ibfc2a46632e17578fd74357b83f417987b8447be
2019-09-07	ip: fix udp/tcp checksum corner cases	Dave Barach	9	-0/+987
	When checksumming chained buffers with odd lengths: insert a NULL byte, or the calculation fails. Type: fix Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: John Lo <loj@cisco.com> Change-Id: I380f7c42897bdb28c8c29aa1c4cdaaa849cc9ecc