/* * Copyright (c) 2007 - Andrey "nording" Chernyak <andrew@nording.ru> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may be used to endorse * or promote products derived from this software without specific prior * written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * Format and print Realtek Remote Control Protocol (RRCP) * and Realtek Echo Protocol (RRCP-REP) packets. */#ifndef lintstatic const char rcsid[] _U_ =    "@(#) $Header: /tcpdump/master/tcpdump/print-rrcp.c,v 1.1.2.2 2008-04-11 17:00:00 gianluca Exp $";#endif#ifdef HAVE_CONFIG_H#include "config.h"#endif#include <tcpdump-stdinc.h>#include <stdio.h>#include <string.h>#include "netdissect.h"#include "addrtoname.h"#include "extract.h"#include "ether.h"#ifndef ETH_ALEN #define ETH_ALEN 6#endifstruct rrcp_packet_t{  u_int16_t rrcp_ethertype;		/* 0x8899 */  u_int8_t  rrcp_proto;			/* must be 0x01         */  u_int8_t  rrcp_opcode:7;               /* 0x00 = hello, 0x01 = get, 0x02 = set */  u_int8_t  rrcp_isreply:1;              /* 0 = request to switch, 1 = reply from switch */  u_int16_t rrcp_authkey;		/* 0x2379 by default */  u_int16_t rrcp_reg_addr;		/* register address */  u_int32_t rrcp_reg_data;		/* register data */  u_int32_t cookie1;  u_int32_t cookie2;};struct rrcp_helloreply_packet_t{  u_int16_t rrcp_ethertype;		/* 0x8899 */  u_int8_t  rrcp_proto;			/* must be 0x01         */  u_int8_t  rrcp_opcode:7;               /* 0x00 = hello, 0x01 = get, 0x02 = set */  u_int8_t  rrcp_isreply:1;              /* 0 = request to switch, 1 = reply from switch */  u_int16_t rrcp_authkey;		/* 0x2379 by default */  u_int8_t  rrcp_downlink_port;		/*  */  u_int8_t  rrcp_uplink_port;		/*  */  u_int8_t  rrcp_uplink_mac[ETH_ALEN];   /*  */  u_int16_t rrcp_chip_id;		/*  */  u_int32_t rrcp_vendor_id;		/*  */};/* * Print RRCP requests */voidrrcp_print(netdissect_options *ndo,	  register const u_char *cp,	  u_int length _U_){	const struct rrcp_packet_t *rrcp;	const struct rrcp_helloreply_packet_t *rrcp_hello;	register const struct ether_header *ep;	char proto_str[16];	char opcode_str[32];	ep = (const struct ether_header *)cp;	rrcp = (const struct rrcp_packet_t *)(cp+12);	rrcp_hello = (const struct rrcp_helloreply_packet_t *)(cp+12);	if (rrcp->rrcp_proto==1){	    strcpy(proto_str,"RRCP");	}else if ( rrcp->rrcp_proto==2 ){	    strcpy(proto_str,"RRCP-REP");	}else{	    sprintf(proto_str,"RRCP-0x%02d",rrcp->rrcp_proto);	}	if (rrcp->rrcp_opcode==0){	    strcpy(opcode_str,"hello");	}else if ( rrcp->rrcp_opcode==1 ){	    strcpy(opcode_str,"get");	}else if ( rrcp->rrcp_opcode==2 ){	    strcpy(opcode_str,"set");	}else{	    sprintf(opcode_str,"unknown opcode (0x%02d)",rrcp->rrcp_opcode);	}        ND_PRINT((ndo, "%s > %s, %s %s",		etheraddr_string(ESRC(ep)),		etheraddr_string(EDST(ep)),		proto_str, rrcp->rrcp_isreply ? "reply" : "query"));	if (rrcp->rrcp_proto==1){    	    ND_PRINT((ndo, ": %s", opcode_str));	}	if (rrcp->rrcp_opcode==1 || rrcp->rrcp_opcode==2){    	    ND_PRINT((ndo, " addr=0x%04x, data=0x%04x",		     rrcp->rrcp_reg_addr, rrcp->rrcp_reg_data, rrcp->rrcp_authkey));	}	if (rrcp->rrcp_proto==1){    	    ND_PRINT((ndo, ", auth=0x%04x",		  ntohs(rrcp->rrcp_authkey)));	}	if (rrcp->rrcp_proto==1 && rrcp->rrcp_opcode==0 && rrcp->rrcp_isreply){    	    ND_PRINT((ndo, " downlink_port=%d, uplink_port=%d, uplink_mac=%s, vendor_id=%08x ,chip_id=%04x ",		     rrcp_hello->rrcp_downlink_port,		     rrcp_hello->rrcp_uplink_port,		     etheraddr_string(rrcp_hello->rrcp_uplink_mac),		     rrcp_hello->rrcp_vendor_id,		     rrcp_hello->rrcp_chip_id));	}else if (rrcp->rrcp_opcode==1 || rrcp->rrcp_opcode==2 || rrcp->rrcp_proto==2){    	ND_PRINT((ndo, ", cookie=0x%08x%08x ",		    rrcp->cookie2, rrcp->cookie1));	}        if (!ndo->ndo_vflag)            return;}