aboutsummaryrefslogtreecommitdiffstats
path: root/GPL/traffic_profiles/trex/trex-astf-ethip4tcp-1024h-pps.py
blob: 546e11bb5ea89fe8e174b63154e4b1568ac432d0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
# Copyright (c) 2022 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.

"""Traffic profile for T-rex advanced stateful (astf) traffic generator.

Traffic profile:
 - Two streams sent in directions 0 --> 1 (client -> server, requests) and
   1 --> 0 (server -> client, responses) at the same time.
 - Packet: ETH / IP / TCP
 - Direction 0 --> 1:
   - Source IP address range:      192.168.0.0 - 192.168.3.255
   - Destination IP address range: 20.0.0.0 - 20.0.3.255
 - Direction 1 --> 0:
   - Source IP address range:      destination IP address from packet received
     on port 1
   - Destination IP address range: source IP address from packet received
     on port 1

This is a profile for PPS tests, it combines TCP connect and data transfer.
No delays, server response waits for full request.
"""

from trex.astf.api import *
from profile_trex_astf_base_class import TrafficProfileBaseClass


class TrafficProfile(TrafficProfileBaseClass):
    """Traffic profile."""

    def define_profile(self):
        """Define profile to be used by advanced stateful traffic generator.

        This method MUST return:

            return ip_gen, templates, None

        :returns: IP generator and profile templates for ASTFProfile().
        :rtype: tuple
        """
        # IPs used in packet headers.
        p1_src_start_ip = u"192.168.0.0"
        p1_src_end_ip = u"192.168.3.255"
        p1_dst_start_ip = u"20.0.0.0"
        p1_dst_end_ip = u"20.0.3.255"

        # Headers length, not sure why TRex needs 32B for segment header.
        real_headers_size = 70  # 18B L2 + 20B IPv4 + 32B TCP.
        trex_headers_size = real_headers_size - 12  # As if TCP header is 20B.
        trex_mss = self.framesize - trex_headers_size
        real_mss = trex_mss - 12  # TRex honors segment header+data limit.
        data_size = self.n_data_frames * real_mss

        # client commands
        prog_c = ASTFProgram()
        prog_c.connect()
        prog_c.send(u"1" * data_size)
        prog_c.recv(data_size)

        # server commands
        prog_s = ASTFProgram()
        prog_s.accept()
        prog_s.recv(data_size)
        prog_s.send(u"1" * data_size)

        # ip generators
        ip_gen_c = ASTFIPGenDist(
            ip_range=[p1_src_start_ip, p1_src_end_ip],
            distribution=u"seq",
        )
        ip_gen_s = ASTFIPGenDist(
            ip_range=[p1_dst_start_ip, p1_dst_end_ip],
            distribution=u"seq",
        )
        ip_gen = ASTFIPGen(
            glob=ASTFIPGenGlobal(ip_offset=u"0.0.0.1"),
            dist_client=ip_gen_c,
            dist_server=ip_gen_s,
        )

        # server association
        s_assoc = ASTFAssociation(rules=ASTFAssociationRule(port=8080))

        # template
        temp_c = ASTFTCPClientTemplate(
            program=prog_c,
            ip_gen=ip_gen,
            limit=64512,  # TODO: set via input parameter
            port=8080,
        )
        temp_s = ASTFTCPServerTemplate(program=prog_s, assoc=s_assoc)
        template = ASTFTemplate(client_template=temp_c, server_template=temp_s)

        globinfo = ASTFGlobalInfo()
        # Ensure correct data frame size.
        globinfo.tcp.mss = trex_mss
        # Ensure the whole transaction is a single burst (per direction).
        globinfo.tcp.initwnd = self.n_data_frames
        # Ensure buffers are large enough so starting window works.
        globinfo.tcp.txbufsize = data_size
        globinfo.tcp.rxbufsize = data_size
        kwargs = dict(
            default_c_glob_info=globinfo,
            default_s_glob_info=globinfo,
        )

        return ip_gen, template, kwargs


def register():
    """Register this traffic profile to T-Rex.

    Do not change this function.

    :return: Traffic Profiles.
    :rtype: Object
    """
    return TrafficProfile()