b636d99d91
For now, printing of Sun RPC requests is disabled because we do not yet have the RPC header files. This should affect basically noone, as we do not have any RPC-based programs yet, for the same reason. Change-Id: Ie7818faaaacdc104d8b2c37a68866b4ce18247d6
119 lines
2.6 KiB
C
119 lines
2.6 KiB
C
/*
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* Copyright (c) 1998-2007 The TCPDUMP project
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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
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* distributions retain the above copyright notice and this paragraph
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* in its entirety, and (2) distributions including binary code include
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* the above copyright notice and this paragraph in its entirety in
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* the documentation or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
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* WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
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* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE.
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*
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* Dynamic Trunk Protocol (DTP)
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*
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* Original code by Carles Kishimoto <carles.kishimoto@gmail.com>
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*/
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#define NETDISSECT_REWORKED
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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 "interface.h"
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#include "addrtoname.h"
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#include "extract.h"
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#define DTP_HEADER_LEN 1
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#define DTP_DOMAIN_TLV 0x0001
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#define DTP_STATUS_TLV 0x0002
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#define DTP_DTP_TYPE_TLV 0x0003
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#define DTP_NEIGHBOR_TLV 0x0004
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static const struct tok dtp_tlv_values[] = {
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{ DTP_DOMAIN_TLV, "Domain TLV"},
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{ DTP_STATUS_TLV, "Status TLV"},
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{ DTP_DTP_TYPE_TLV, "DTP type TLV"},
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{ DTP_NEIGHBOR_TLV, "Neighbor TLV"},
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{ 0, NULL}
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};
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void
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dtp_print (netdissect_options *ndo, const u_char *pptr, u_int length)
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{
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int type, len;
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const u_char *tptr;
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if (length < DTP_HEADER_LEN)
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goto trunc;
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tptr = pptr;
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ND_TCHECK2(*tptr, DTP_HEADER_LEN);
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ND_PRINT((ndo, "DTPv%u, length %u",
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(*tptr),
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length));
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/*
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* In non-verbose mode, just print version.
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*/
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if (ndo->ndo_vflag < 1) {
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return;
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}
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tptr += DTP_HEADER_LEN;
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while (tptr < (pptr+length)) {
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ND_TCHECK2(*tptr, 4);
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type = EXTRACT_16BITS(tptr);
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len = EXTRACT_16BITS(tptr+2);
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/* infinite loop check */
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if (type == 0 || len == 0) {
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return;
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}
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ND_PRINT((ndo, "\n\t%s (0x%04x) TLV, length %u",
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tok2str(dtp_tlv_values, "Unknown", type),
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type, len));
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switch (type) {
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case DTP_DOMAIN_TLV:
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ND_PRINT((ndo, ", %s", tptr+4));
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break;
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case DTP_STATUS_TLV:
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case DTP_DTP_TYPE_TLV:
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ND_PRINT((ndo, ", 0x%x", *(tptr+4)));
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break;
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case DTP_NEIGHBOR_TLV:
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ND_PRINT((ndo, ", %s", etheraddr_string(ndo, tptr+4)));
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break;
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default:
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break;
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}
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tptr += len;
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}
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return;
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trunc:
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ND_PRINT((ndo, "[|dtp]"));
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}
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/*
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* Local Variables:
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* c-style: whitesmith
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* c-basic-offset: 4
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* End:
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*/
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