Class SSLv2ClientHello

scapy/layers/tls/handshake_sslv2.py:102–130

SSLv2 ClientHello.

class SSLv2ClientHello(_SSLv2Handshake):
    """
    SSLv2 ClientHello.
    """
    name = "SSLv2 Handshake - Client Hello"
    fields_desc = [ByteEnumField("msgtype", 1, _sslv2_handshake_type),
                   _TLSVersionField("version", 0x0002, _tls_version),

                   FieldLenField("cipherslen", None, fmt="!H",
                                 length_of="ciphers"),
                   FieldLenField("sidlen", None, fmt="!H",
                                 length_of="sid"),
                   FieldLenField("challengelen", None, fmt="!H",
                                 length_of="challenge"),

                   XStrLenField("sid", b"",
                                length_from=lambda pkt:pkt.sidlen),
                   _SSLv2CipherSuitesField("ciphers",
                                           [SSL_CK_DES_192_EDE3_CBC_WITH_MD5],
                                           _tls_cipher_suites,
                                           length_from=lambda pkt: pkt.cipherslen),  # noqa: E501
                   XStrLenField("challenge", b"",
                                length_from=lambda pkt:pkt.challengelen)]

    def tls_session_update(self, msg_str):
        super(SSLv2ClientHello, self).tls_session_update(msg_str)
        self.tls_session.advertised_tls_version = self.version
        self.tls_session.sslv2_common_cs = self.ciphers
        self.tls_session.sslv2_challenge = self.challenge


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