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002e6825 CH |
1 | #!/usr/bin/env python3 |
2 | # -*- coding: utf-8 eval: (blacken-mode 1) -*- | |
3 | # | |
4 | # July 29 2021, Christian Hopps <chopps@labn.net> | |
5 | # | |
6 | # Copyright (c) 2021, LabN Consulting, L.L.C. ("LabN") | |
7 | # | |
8 | # Permission is hereby granted, free of charge, to any person obtaining a copy | |
9 | # of this software and associated documentation files (the "Software"), to deal | |
10 | # in the Software without restriction, including without limitation the rights | |
11 | # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | # copies of the Software, and to permit persons to whom the Software is | |
13 | # furnished to do so, subject to the following conditions: | |
14 | # | |
15 | # The above copyright notice and this permission notice shall be included in all | |
16 | # copies or substantial portions of the Software. | |
17 | # | |
18 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
21 | # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
23 | # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
24 | # SOFTWARE. | |
25 | # | |
26 | import argparse | |
27 | import logging | |
28 | import re | |
29 | import sys | |
30 | ||
31 | from scapy.all import conf, srp | |
32 | ||
33 | conf.verb = 0 | |
34 | ||
35 | ||
36 | def main(): | |
37 | parser = argparse.ArgumentParser() | |
38 | parser.add_argument("-i", "--interface", help="interface to send packet on.") | |
39 | parser.add_argument("-I", "--imports", help="scapy symbols to import") | |
40 | parser.add_argument( | |
41 | "-t", "--timeout", type=float, default=2.0, help="timeout for reply receipts" | |
42 | ) | |
43 | parser.add_argument("pktdef", help="scapy packet definition to send") | |
44 | args = parser.parse_args() | |
45 | ||
46 | if args.imports: | |
47 | i = args.imports.replace("\n", "").strip() | |
48 | if not re.match("[a-zA-Z0-9_ \t,]", i): | |
49 | logging.critical('Invalid imports specified: "%s"', i) | |
50 | sys.exit(1) | |
51 | exec("from scapy.all import " + i, globals(), locals()) | |
52 | ||
53 | ans, unans = srp(eval(args.pktdef), iface=args.interface, timeout=args.timeout) | |
54 | if not ans: | |
55 | sys.exit(2) | |
56 | for pkt in ans: | |
57 | print(pkt.answer.show(dump=True)) | |
58 | ||
59 | ||
60 | if __name__ == "__main__": | |
61 | main() |