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/*
* 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 lint
static 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
#endif
struct 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
*/
void
rrcp_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;
}
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