genpcap.py 文件源码

def get_packetmod_pcap(nb_headers, nb_fields, mod_type, out_dir, packet_size=256):
    pkt = Packet()
    if mod_type == 'add':
        eth = Ether(src='0C:C4:7A:A3:25:34', dst='0C:C4:7A:A3:25:35')
        ptp = PTP(reserved2=0)
        pkt = eth / ptp / '0x0' * 6
    elif mod_type == 'rm':
        eth = Ether(src='0C:C4:7A:A3:25:34', dst='0C:C4:7A:A3:25:35')
        ptp = PTP(reserved2=1)
        pkt = eth / ptp
        pkt /= add_layers(nb_fields, nb_headers)
        pkt = add_padding(pkt, packet_size)
    elif mod_type == 'mod':
        eth = Ether(src='0C:C4:7A:A3:25:34', dst='0C:C4:7A:A3:25:35')
        ptp = PTP(reserved2=1)
        pkt = eth / ptp
        pkt /= add_layers(nb_fields, nb_headers)
        pkt = add_padding(pkt, packet_size)

    wrpcap('%s/test.pcap' % out_dir, pkt)