Class SSLv2ServerHello

scapy/layers/tls/handshake_sslv2.py:161–199

SSLv2 ServerHello.

class SSLv2ServerHello(_SSLv2Handshake):
    """
    SSLv2 ServerHello.
    """
    name = "SSLv2 Handshake - Server Hello"
    fields_desc = [ByteEnumField("msgtype", 4, _sslv2_handshake_type),

                   ByteField("sid_hit", 0),
                   ByteEnumField("certtype", 1, {1: "x509_cert"}),
                   _TLSVersionField("version", 0x0002, _tls_version),

                   FieldLenField("certlen", None, fmt="!H",
                                 length_of="cert"),
                   FieldLenField("cipherslen", None, fmt="!H",
                                 length_of="ciphers"),
                   FieldLenField("connection_idlen", None, fmt="!H",
                                 length_of="connection_id"),

                   _SSLv2CertDataField("cert", b"",
                                       length_from=lambda pkt: pkt.certlen),
                   _SSLv2CipherSuitesField("ciphers", [], _tls_cipher_suites,
                                           length_from=lambda pkt: pkt.cipherslen),  # noqa: E501
                   XStrLenField("connection_id", b"",
                                length_from=lambda pkt: pkt.connection_idlen)]

    def tls_session_update(self, msg_str):
        """
        XXX Something should be done about the session ID here.
        """
        super(SSLv2ServerHello, self).tls_session_update(msg_str)

        s = self.tls_session
        client_cs = s.sslv2_common_cs
        css = [cs for cs in client_cs if cs in self.ciphers]
        s.sslv2_common_cs = css
        s.sslv2_connection_id = self.connection_id
        s.tls_version = self.version
        if self.cert is not None:
            s.server_certs = [self.cert]


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