Attachment 233823 Details for Bug 263886 – python script for sending a good/bad checksum packet

python script for sending a good/bad checksum packet

send_raw_ping.py (text/plain), 1.58 KB, created by Jiahao LI on 2022-05-09 18:36:17 UTC

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Creator: Jiahao LI

Created: 2022-05-09 18:36:17 UTC

Size: 1.58 KB

patch

obsolete

>import string
>from scapy.all import *
>import argparse
>
>
>#fa:97:92:f6:f1:09
>
># This is a ping packet with a good checksum (0xb789), IP addresses
># don't matter as this will be used in testing IP checksum
>good_ping_pkt_payload = b'\xFA\x97\x92\xF6\xF1\x09' +\
>                        b'\x00\x00\x00\x00\x00\x01' +\
>                        b'\x08\x00\x45\x00\x00\x1E\x00\x00\x40\x00\x40\x01' +\
>                        b'\xB7\x89\xC0\xA8\x01\x02\xC0\xA8\x01\x03\x08\x00' +\
>                        b'\xF7\xFE\x00\x00\x00\x00\x00\x01'
>
># This is a ping packet with a bad checksum (0xb788), IP addresses
># don't matter as this will be used in testing IP checksum
>bad_ping_pkt_payload =  b'\xFA\x97\x92\xF6\xF1\x09' +\
>                        b'\x00\x00\x00\x00\x00\x01' +\
>                        b'\x08\x00\x45\x00\x00\x1e\x00\x00\x40\x00\x40\x01' +\
>                        b'\xb7\x88\xc0\xa8\x01\x02\xc0\xa8\x01\x03\x08\x00' +\
>                        b'\xf7\xfe\x00\x00\x00\x00\x00\x01'
>
>def send_good_ping():
>    netpacket = Raw(good_ping_pkt_payload)
>    print(netpacket)
>    sendp(netpacket, iface="enp0s31f6")
>
>def send_bad_ping():
>    netpacket = Raw(bad_ping_pkt_payload)
>    print(netpacket)
>    sendp(netpacket, iface="enp0s31f6")
>
>
>
>if __name__ == "__main__":
>    parser = argparse.ArgumentParser()
>
>    parser.add_argument("-s", "--string", type=str, required=True)
>    args = parser.parse_args()    
>    print(args.string)
>    if args.string == 'good':
>        print('Send good packet')
>        send_good_ping()
>    elif args.string == 'bad':
>        print('Send bad packet')
>        send_bad_ping()
>

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Attachments on bug 263886: 233823 | 233824 | 233961 | 234238