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
|
# SPDX-License-Identifier: ISC
#
# Copyright (c) 2019 by VMware, Inc. ("VMware")
# Used Copyright (c) 2018 by Network Device Education Foundation, Inc.
# ("NetDEF") in this file.
#
import sys
import argparse
from scapy.all import Raw, sendp
import binascii
def send_packet(packet, iface, interval, count):
"""
Read BSR packet in Raw format and send it to specified interface
Parameter:
---------
* `packet` : BSR packet in raw format
* `interface` : Interface from which packet would be send
* `interval` : Interval between the packets
* `count` : Number of packets to be sent
"""
try:
data = binascii.a2b_hex(packet)
except binascii.Error:
print("Invalid packet format. Please provide a hexadecimal-encoded string.")
sys.exit(1)
p = Raw(load=data)
p.show()
try:
sendp(p, inter=int(interval), iface=iface, count=int(count))
except ValueError:
print("Invalid interval or count value. Please provide integers.")
sys.exit(1)
except Exception as error:
print(f"Error sending packet: {error}")
sys.exit(1)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Send BSR Raw packet")
parser.add_argument("packet", help="Packet in raw format")
parser.add_argument("iface", help="Packet send to this interface")
parser.add_argument("--interval", help="Interval between packets", default=0)
parser.add_argument(
"--count", help="Number of times packet is sent repetitively", default=0
)
args = parser.parse_args()
if not args.packet or not args.iface:
print("Please provide both a packet and an interface.")
sys.exit(1)
send_packet(args.packet, args.iface, args.interval, args.count)
|
