bool silc_packet_receive_process(SilcSocketConnection sock,
                                     bool local_is_router,
                                     SilcCipher cipher, SilcHmac hmac,
                                     SilcUInt32 sequence,
                                     SilcPacketParserCallback parser,
                                     void *parser_context);

    Processes and decrypts the incoming data, and calls parser callback
    for each received packet that will handle the actual packet parsing.
    If more than one packet was received this calls the parser multiple
    times.  The parser callback will get context SilcPacketParserContext
    that includes the packet and the `parser_context' sent to this
    function. 

    The `local_is_router' indicates whether the caller is router server
    in which case the receiving process of a certain packet types may
    be special.  Normal server and client must set it to FALSE.  The
    SilcPacketParserContext will indicate also whether the received
    packet was normal or special packet.