6d59e2f382
Changes: Thu. April 1, 2010. guy@alum.mit.edu. Summary for 4.1.1 tcpdump release Fix build on systems with PF, such as FreeBSD and OpenBSD. Don't blow up if a zero-length link-layer address is passed to linkaddr_string(). Thu. March 11, 2010. ken@netfunctional.ca/guy@alum.mit.edu. Summary for 4.1.0 tcpdump release Fix printing of MAC addresses for VLAN frames with a length field Add some additional bounds checks and use the EXTRACT_ macros more Add a -b flag to print the AS number in BGP packets in ASDOT notation rather than ASPLAIN notation Add ICMPv6 RFC 5006 support Decode the access flags in NFS access requests Handle the new DLT_ for memory-mapped USB captures on Linux Make the default snapshot (-s) the maximum Print name of device (when -L is used) Support for OpenSolaris (and SXCE build 125 and later) Print new TCP flags Add support for RPL DIO Add support for TCP User Timeout (UTO) Add support for non-standard Ethertypes used by 3com PPPoE gear Add support for 802.11n and 802.11s Add support for Transparent Ethernet Bridge ethertype in GRE Add 4 byte AS support for BGP printer Add support for the MDT SAFI 66 BG printer Add basic IPv6 support to print-olsr Add USB printer Add printer for ForCES Handle frames with an FCS Handle 802.11n Control Wrapper, Block Acq Req and Block Ack frames Fix TCP sequence number printing Report 802.2 packets as 802.2 instead of 802.3 Don't include -L/usr/lib in LDFLAGS On x86_64 Linux, look in lib64 directory too Lots of code clean ups Autoconf clean ups Update testcases to make output changes Fix compiling with/out smi (--with{,out}-smi) Fix compiling without IPv6 support (--disable-ipv6)
144 lines
4.9 KiB
C
144 lines
4.9 KiB
C
/*
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* Copyright (c) 2007 - Andrey "nording" Chernyak <andrew@nording.ru>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Format and print Realtek Remote Control Protocol (RRCP)
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* and Realtek Echo Protocol (RRCP-REP) packets.
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*/
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#ifndef lint
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static const char rcsid[] _U_ =
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"@(#) $Header: /tcpdump/master/tcpdump/print-rrcp.c,v 1.2 2008-04-11 17:21:34 gianluca Exp $";
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <tcpdump-stdinc.h>
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#include <stdio.h>
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#include <string.h>
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#include "netdissect.h"
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#include "addrtoname.h"
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#include "extract.h"
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#include "ether.h"
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#ifndef ETH_ALEN
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#define ETH_ALEN 6
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#endif
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#define RRCP_OPCODE_MASK 0x7F /* 0x00 = hello, 0x01 = get, 0x02 = set */
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#define RRCP_ISREPLY 0x80 /* 0 = request to switch, 0x80 = reply from switch */
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#define RRCP_PROTO_OFFSET 0 /* proto - 1 byte, must be 1 */
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#define RRCP_OPCODE_ISREPLY_OFFSET 1 /* opcode and isreply flag - 1 byte */
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#define RRCP_AUTHKEY_OFFSET 2 /* authorization key - 2 bytes, 0x2379 by default */
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/* most packets */
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#define RRCP_REG_ADDR_OFFSET 4 /* register address - 2 bytes */
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#define RRCP_REG_DATA_OFFSET 6 /* register data - 4 bytes */
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#define RRCP_COOKIE1_OFFSET 10 /* 4 bytes */
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#define RRCP_COOKIE2_OFFSET 14 /* 4 bytes */
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/* hello reply packets */
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#define RRCP_DOWNLINK_PORT_OFFSET 4 /* 1 byte */
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#define RRCP_UPLINK_PORT_OFFSET 5 /* 1 byte */
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#define RRCP_UPLINK_MAC_OFFSET 6 /* 6 byte MAC address */
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#define RRCP_CHIP_ID_OFFSET 12 /* 2 bytes */
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#define RRCP_VENDOR_ID_OFFSET 14 /* 4 bytes */
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static const struct tok proto_values[] = {
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{ 1, "RRCP" },
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{ 2, "RRCP-REP" },
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{ 0, NULL }
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};
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static const struct tok opcode_values[] = {
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{ 0, "hello" },
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{ 1, "get" },
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{ 2, "set" },
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{ 0, NULL }
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};
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/*
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* Print RRCP requests
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*/
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void
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rrcp_print(netdissect_options *ndo,
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register const u_char *cp,
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u_int length _U_)
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{
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const u_char *rrcp;
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u_int8_t rrcp_proto;
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u_int8_t rrcp_opcode;
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register const struct ether_header *ep;
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char proto_str[16];
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char opcode_str[32];
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ep = (const struct ether_header *)cp;
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rrcp = cp + ETHER_HDRLEN;
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ND_TCHECK(*(rrcp + RRCP_PROTO_OFFSET));
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rrcp_proto = *(rrcp + RRCP_PROTO_OFFSET);
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ND_TCHECK(*(rrcp + RRCP_OPCODE_ISREPLY_OFFSET));
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rrcp_opcode = (*(rrcp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_OPCODE_MASK;
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ND_PRINT((ndo, "%s > %s, %s %s",
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etheraddr_string(ESRC(ep)),
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etheraddr_string(EDST(ep)),
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tok2strbuf(proto_values,"RRCP-0x%02d",rrcp_proto,proto_str,sizeof(proto_str)),
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((*(rrcp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_ISREPLY) ? "reply" : "query"));
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if (rrcp_proto==1){
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ND_PRINT((ndo, ": %s",
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tok2strbuf(opcode_values,"unknown opcode (0x%02d)",rrcp_opcode,opcode_str,sizeof(opcode_str))));
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}
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if (rrcp_opcode==1 || rrcp_opcode==2){
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ND_TCHECK2(*(rrcp + RRCP_REG_ADDR_OFFSET), 6);
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ND_PRINT((ndo, " addr=0x%04x, data=0x%08x",
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EXTRACT_16BITS(rrcp + RRCP_REG_ADDR_OFFSET),
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EXTRACT_32BITS(rrcp + RRCP_REG_DATA_OFFSET)));
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}
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if (rrcp_proto==1){
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ND_TCHECK2(*(rrcp + RRCP_AUTHKEY_OFFSET), 2);
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ND_PRINT((ndo, ", auth=0x%04x",
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EXTRACT_16BITS(rrcp + RRCP_AUTHKEY_OFFSET)));
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}
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if (rrcp_proto==1 && rrcp_opcode==0 &&
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((*(rrcp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_ISREPLY)){
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ND_TCHECK2(*(rrcp + RRCP_VENDOR_ID_OFFSET), 4);
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ND_PRINT((ndo, " downlink_port=%d, uplink_port=%d, uplink_mac=%s, vendor_id=%08x ,chip_id=%04x ",
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*(rrcp + RRCP_DOWNLINK_PORT_OFFSET),
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*(rrcp + RRCP_UPLINK_PORT_OFFSET),
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etheraddr_string(rrcp + RRCP_UPLINK_MAC_OFFSET),
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EXTRACT_32BITS(rrcp + RRCP_VENDOR_ID_OFFSET),
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EXTRACT_16BITS(rrcp + RRCP_CHIP_ID_OFFSET)));
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}else if (rrcp_opcode==1 || rrcp_opcode==2 || rrcp_proto==2){
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ND_TCHECK2(*(rrcp + RRCP_COOKIE2_OFFSET), 4);
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ND_PRINT((ndo, ", cookie=0x%08x%08x ",
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EXTRACT_32BITS(rrcp + RRCP_COOKIE2_OFFSET),
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EXTRACT_32BITS(rrcp + RRCP_COOKIE1_OFFSET)));
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}
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if (!ndo->ndo_vflag)
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return;
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return;
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trunc:
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ND_PRINT((ndo, "[|rrcp]"));
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}
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