Class SMBNegotiate_Response_Security

scapy/layers/smb.py:460–480

class SMBNegotiate_Response_Security(_SMBNegotiate_Response):
    name = "SMB Negotiate Non-Extended Security Response (SMB)"
    WordCount = 0x11
    fields_desc = SMBNegotiate_Response_NoSecurity.fields_desc[:12] + [
        LEFieldLenField(
            "ByteCount",
            None,
            length_of="DomainName",
            adjust=lambda pkt, x: x
            + 2
            + _len(pkt, "Challenge")
            + _len(pkt, "ServerName"),
        ),
        XStrLenField(
            "Challenge",
            b"",  # aka EncryptionKey
            length_from=lambda pkt: pkt.ChallengeLength,
        ),
        _SMBStrNullField("DomainName", "WORKGROUP"),
        _SMBStrNullField("ServerName", "RMFF1"),
    ]


bind_top_down(SMB_Header, SMBNegotiate_Response_Security, Command=0x72, Flags=0x80)