aboutsummaryrefslogtreecommitdiffstats
path: root/GPL/traffic_profiles/trex/trex-stl-ethip4-geneve-4t.py
blob: 06616e18ec3927c361438b145adb41838eaa3fa8 (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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
# Copyright (c) 2023 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 - 10.128.4.255
   - Destination IP address range:       10.0.1.0 - 10.0.4.255
 - 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 - 10.0.4.255
   - Inner Destination IP address range: 10.128.1.0 - 10.128.4.255
   - Source UDP port range:              1024 - 2047
   - 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 = 4
        # 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()