Method BEGIN

scapy/layers/tftp.py:279–292

(self)

    # BEGIN
    @ATMT.state(initial=1)
    def BEGIN(self):
        self.data = [self.origdata[i * self.blocksize:(i + 1) * self.blocksize]
                     for i in range(len(self.origdata) // self.blocksize + 1)]
        self.my_tid = self.sport or RandShort()._fix()
        bind_bottom_up(UDP, TFTP, dport=self.my_tid)
        self.server_tid = None

        self.l3 = IP(dst=self.server) / UDP(sport=self.my_tid, dport=self.port) / TFTP()  # noqa: E501
        self.last_packet = self.l3 / TFTP_WRQ(filename=self.filename, mode="octet")  # noqa: E501
        self.send(self.last_packet)
        self.res = ""
        self.awaiting = 0

        raise self.WAITING_ACK()

    # WAITING_ACK
    @ATMT.state()