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
108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
/*
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* Copyright (c) 2001 William C. Fenner.
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* All rights reserved.
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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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* The name of William C. Fenner may not be used to endorse or
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* promote products derived from this software without specific prior
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* written permission. 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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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: print-msdp.c,v 1.4 2014/11/20 03:05:03 christos Exp $");
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#endif
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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 MSDP_TYPE_MAX 7
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void
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msdp_print(netdissect_options *ndo, const u_char *sp, u_int length)
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{
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unsigned int type, len;
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ND_TCHECK2(*sp, 3);
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/* See if we think we're at the beginning of a compound packet */
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type = *sp;
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len = EXTRACT_16BITS(sp + 1);
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if (len > 1500 || len < 3 || type == 0 || type > MSDP_TYPE_MAX)
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goto trunc; /* not really truncated, but still not decodable */
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ND_PRINT((ndo, " msdp:"));
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while (length > 0) {
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ND_TCHECK2(*sp, 3);
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type = *sp;
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len = EXTRACT_16BITS(sp + 1);
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if (len > 1400 || ndo->ndo_vflag)
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ND_PRINT((ndo, " [len %u]", len));
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if (len < 3)
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goto trunc;
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sp += 3;
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length -= 3;
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switch (type) {
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case 1: /* IPv4 Source-Active */
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case 3: /* IPv4 Source-Active Response */
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if (type == 1)
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ND_PRINT((ndo, " SA"));
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else
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ND_PRINT((ndo, " SA-Response"));
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ND_TCHECK(*sp);
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ND_PRINT((ndo, " %u entries", *sp));
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if ((u_int)((*sp * 12) + 8) < len) {
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ND_PRINT((ndo, " [w/data]"));
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if (ndo->ndo_vflag > 1) {
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ND_PRINT((ndo, " "));
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ip_print(ndo, sp + *sp * 12 + 8 - 3,
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len - (*sp * 12 + 8));
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}
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}
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break;
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case 2:
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ND_PRINT((ndo, " SA-Request"));
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ND_TCHECK2(*sp, 5);
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ND_PRINT((ndo, " for %s", ipaddr_string(ndo, sp + 1)));
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break;
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case 4:
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ND_PRINT((ndo, " Keepalive"));
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if (len != 3)
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ND_PRINT((ndo, "[len=%d] ", len));
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break;
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case 5:
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ND_PRINT((ndo, " Notification"));
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break;
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default:
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ND_PRINT((ndo, " [type=%d len=%d]", type, len));
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break;
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}
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sp += (len - 3);
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length -= (len - 3);
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}
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return;
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trunc:
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ND_PRINT((ndo, " [|msdp]"));
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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: 8
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* End:
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*/
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