1999-10-08 07:47:09 +08:00
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/*
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* Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994, 1995, 1996
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* The Regents of the University of California. 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 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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2016-08-14 21:42:19 +08:00
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/* \summary: Internet Control Message Protocol (ICMP) printer */
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1999-11-21 17:36:43 +08:00
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#ifdef HAVE_CONFIG_H
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2018-01-22 04:27:08 +08:00
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#include <config.h>
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1999-10-08 07:47:09 +08:00
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#endif
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2018-01-20 22:59:49 +08:00
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#include "netdissect-stdinc.h"
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1999-10-08 07:47:09 +08:00
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#include <stdio.h>
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#include <string.h>
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2015-09-06 05:35:58 +08:00
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#include "netdissect.h"
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1999-10-08 07:47:09 +08:00
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#include "addrtoname.h"
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2015-09-07 21:01:46 +08:00
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#include "extract.h"
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1999-10-08 07:47:09 +08:00
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2000-09-23 16:54:24 +08:00
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#include "ip.h"
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2000-09-23 16:26:30 +08:00
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#include "udp.h"
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2003-06-07 19:57:51 +08:00
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#include "ipproto.h"
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2004-06-14 23:08:08 +08:00
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#include "mpls.h"
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2000-09-23 16:26:30 +08:00
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2000-09-23 16:54:24 +08:00
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/*
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* Interface Control Message Protocol Definitions.
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* Per RFC 792, September 1981.
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*/
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/*
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* Structure of an icmp header.
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*/
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struct icmp {
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2017-12-19 13:41:03 +08:00
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nd_uint8_t icmp_type; /* type of message, see below */
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nd_uint8_t icmp_code; /* type sub code */
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nd_uint16_t icmp_cksum; /* ones complement cksum of struct */
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2000-09-23 16:54:24 +08:00
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union {
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2018-01-30 22:51:20 +08:00
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nd_uint8_t ih_pptr; /* ICMP_PARAMPROB */
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nd_ipv4 ih_gwaddr; /* ICMP_REDIRECT */
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2000-09-23 16:54:24 +08:00
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struct ih_idseq {
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2017-12-19 13:41:03 +08:00
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nd_uint16_t icd_id;
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nd_uint16_t icd_seq;
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2000-09-23 16:54:24 +08:00
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} ih_idseq;
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2017-12-19 13:41:03 +08:00
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nd_uint32_t ih_void;
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2000-09-23 16:54:24 +08:00
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} icmp_hun;
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#define icmp_pptr icmp_hun.ih_pptr
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#define icmp_gwaddr icmp_hun.ih_gwaddr
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#define icmp_id icmp_hun.ih_idseq.icd_id
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#define icmp_seq icmp_hun.ih_idseq.icd_seq
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#define icmp_void icmp_hun.ih_void
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union {
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struct id_ts {
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2017-12-19 13:41:03 +08:00
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nd_uint32_t its_otime;
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nd_uint32_t its_rtime;
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nd_uint32_t its_ttime;
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2000-09-23 16:54:24 +08:00
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} id_ts;
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struct id_ip {
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struct ip idi_ip;
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/* options and then 64 bits of data */
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} id_ip;
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2017-12-19 13:41:03 +08:00
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nd_uint32_t id_mask;
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nd_byte id_data[1];
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2000-09-23 16:54:24 +08:00
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} icmp_dun;
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#define icmp_otime icmp_dun.id_ts.its_otime
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#define icmp_rtime icmp_dun.id_ts.its_rtime
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#define icmp_ttime icmp_dun.id_ts.its_ttime
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#define icmp_ip icmp_dun.id_ip.idi_ip
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#define icmp_mask icmp_dun.id_mask
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#define icmp_data icmp_dun.id_data
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2002-12-11 15:13:49 +08:00
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};
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2000-09-23 16:54:24 +08:00
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2014-01-02 10:27:54 +08:00
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#define ICMP_MPLS_EXT_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
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2004-06-15 15:34:22 +08:00
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#define ICMP_MPLS_EXT_VERSION 2
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2004-06-14 23:08:08 +08:00
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2000-09-23 16:54:24 +08:00
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/*
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* Lower bounds on packet lengths for various types.
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* For the error advice packets must first insure that the
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* packet is large enought to contain the returned ip header.
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* Only then can we do the check to see if 64 bits of packet
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* data have been returned, since we need to check the returned
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* ip header length.
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*/
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#define ICMP_MINLEN 8 /* abs minimum */
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2006-12-12 18:48:43 +08:00
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#define ICMP_EXTD_MINLEN (156 - sizeof (struct ip)) /* draft-bonica-internet-icmp-08 */
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2014-04-23 15:20:40 +08:00
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#define ICMP_TSLEN (8 + 3 * sizeof (uint32_t)) /* timestamp */
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2000-09-23 16:54:24 +08:00
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#define ICMP_MASKLEN 12 /* address mask */
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#define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
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2000-10-03 10:54:54 +08:00
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#define ICMP_ADVLEN(p) (8 + (IP_HL(&(p)->icmp_ip) << 2) + 8)
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2000-09-23 16:54:24 +08:00
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/* N.B.: must separately check that ip_hl >= 5 */
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/*
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* Definition of type and code field values.
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*/
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#define ICMP_ECHOREPLY 0 /* echo reply */
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#define ICMP_UNREACH 3 /* dest unreachable, codes: */
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#define ICMP_UNREACH_NET 0 /* bad net */
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#define ICMP_UNREACH_HOST 1 /* bad host */
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#define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
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#define ICMP_UNREACH_PORT 3 /* bad port */
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#define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
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#define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
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#define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
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#define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
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#define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
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#define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */
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#define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
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#define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
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#define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
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#define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
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#define ICMP_REDIRECT 5 /* shorter route, codes: */
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#define ICMP_REDIRECT_NET 0 /* for network */
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#define ICMP_REDIRECT_HOST 1 /* for host */
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#define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
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#define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
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#define ICMP_ECHO 8 /* echo service */
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#define ICMP_ROUTERADVERT 9 /* router advertisement */
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#define ICMP_ROUTERSOLICIT 10 /* router solicitation */
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#define ICMP_TIMXCEED 11 /* time exceeded, code: */
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#define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
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#define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
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#define ICMP_PARAMPROB 12 /* ip header bad */
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#define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */
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#define ICMP_TSTAMP 13 /* timestamp request */
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#define ICMP_TSTAMPREPLY 14 /* timestamp reply */
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#define ICMP_IREQ 15 /* information request */
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#define ICMP_IREQREPLY 16 /* information reply */
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#define ICMP_MASKREQ 17 /* address mask request */
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#define ICMP_MASKREPLY 18 /* address mask reply */
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#define ICMP_MAXTYPE 18
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2014-12-19 17:58:26 +08:00
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#define ICMP_ERRTYPE(type) \
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((type) == ICMP_UNREACH || (type) == ICMP_SOURCEQUENCH || \
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(type) == ICMP_REDIRECT || (type) == ICMP_TIMXCEED || \
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(type) == ICMP_PARAMPROB)
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2004-06-15 15:34:22 +08:00
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#define ICMP_MPLS_EXT_TYPE(type) \
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2006-12-12 18:48:43 +08:00
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((type) == ICMP_UNREACH || \
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(type) == ICMP_TIMXCEED || \
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(type) == ICMP_PARAMPROB)
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1999-10-08 07:47:09 +08:00
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/* rfc1700 */
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#ifndef ICMP_UNREACH_NET_UNKNOWN
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#define ICMP_UNREACH_NET_UNKNOWN 6 /* destination net unknown */
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#endif
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#ifndef ICMP_UNREACH_HOST_UNKNOWN
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#define ICMP_UNREACH_HOST_UNKNOWN 7 /* destination host unknown */
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#endif
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#ifndef ICMP_UNREACH_ISOLATED
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#define ICMP_UNREACH_ISOLATED 8 /* source host isolated */
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#endif
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#ifndef ICMP_UNREACH_NET_PROHIB
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#define ICMP_UNREACH_NET_PROHIB 9 /* admin prohibited net */
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#endif
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#ifndef ICMP_UNREACH_HOST_PROHIB
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#define ICMP_UNREACH_HOST_PROHIB 10 /* admin prohibited host */
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#endif
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#ifndef ICMP_UNREACH_TOSNET
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#define ICMP_UNREACH_TOSNET 11 /* tos prohibited net */
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#endif
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#ifndef ICMP_UNREACH_TOSHOST
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#define ICMP_UNREACH_TOSHOST 12 /* tos prohibited host */
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#endif
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/* rfc1716 */
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#ifndef ICMP_UNREACH_FILTER_PROHIB
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#define ICMP_UNREACH_FILTER_PROHIB 13 /* admin prohibited filter */
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#endif
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#ifndef ICMP_UNREACH_HOST_PRECEDENCE
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#define ICMP_UNREACH_HOST_PRECEDENCE 14 /* host precedence violation */
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#endif
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#ifndef ICMP_UNREACH_PRECEDENCE_CUTOFF
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#define ICMP_UNREACH_PRECEDENCE_CUTOFF 15 /* precedence cutoff */
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#endif
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/* Most of the icmp types */
|
2013-09-25 00:46:24 +08:00
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static const struct tok icmp2str[] = {
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1999-10-08 07:47:09 +08:00
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{ ICMP_ECHOREPLY, "echo reply" },
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{ ICMP_SOURCEQUENCH, "source quench" },
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{ ICMP_ECHO, "echo request" },
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{ ICMP_ROUTERSOLICIT, "router solicitation" },
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{ ICMP_TSTAMP, "time stamp request" },
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{ ICMP_TSTAMPREPLY, "time stamp reply" },
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{ ICMP_IREQ, "information request" },
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{ ICMP_IREQREPLY, "information reply" },
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{ ICMP_MASKREQ, "address mask request" },
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{ 0, NULL }
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};
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/* Formats for most of the ICMP_UNREACH codes */
|
2013-09-25 00:46:24 +08:00
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static const struct tok unreach2str[] = {
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1999-10-08 07:47:09 +08:00
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{ ICMP_UNREACH_NET, "net %s unreachable" },
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{ ICMP_UNREACH_HOST, "host %s unreachable" },
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{ ICMP_UNREACH_SRCFAIL,
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"%s unreachable - source route failed" },
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{ ICMP_UNREACH_NET_UNKNOWN, "net %s unreachable - unknown" },
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{ ICMP_UNREACH_HOST_UNKNOWN, "host %s unreachable - unknown" },
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{ ICMP_UNREACH_ISOLATED,
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"%s unreachable - source host isolated" },
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{ ICMP_UNREACH_NET_PROHIB,
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"net %s unreachable - admin prohibited" },
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{ ICMP_UNREACH_HOST_PROHIB,
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"host %s unreachable - admin prohibited" },
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{ ICMP_UNREACH_TOSNET,
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"net %s unreachable - tos prohibited" },
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{ ICMP_UNREACH_TOSHOST,
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"host %s unreachable - tos prohibited" },
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{ ICMP_UNREACH_FILTER_PROHIB,
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"host %s unreachable - admin prohibited filter" },
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{ ICMP_UNREACH_HOST_PRECEDENCE,
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"host %s unreachable - host precedence violation" },
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{ ICMP_UNREACH_PRECEDENCE_CUTOFF,
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"host %s unreachable - precedence cutoff" },
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{ 0, NULL }
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};
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/* Formats for the ICMP_REDIRECT codes */
|
2013-09-25 00:46:24 +08:00
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static const struct tok type2str[] = {
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1999-10-08 07:47:09 +08:00
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{ ICMP_REDIRECT_NET, "redirect %s to net %s" },
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{ ICMP_REDIRECT_HOST, "redirect %s to host %s" },
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{ ICMP_REDIRECT_TOSNET, "redirect-tos %s to net %s" },
|
2001-07-25 00:56:11 +08:00
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{ ICMP_REDIRECT_TOSHOST, "redirect-tos %s to host %s" },
|
1999-10-08 07:47:09 +08:00
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{ 0, NULL }
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};
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/* rfc1191 */
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struct mtu_discovery {
|
2017-12-19 13:41:03 +08:00
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nd_uint16_t unused;
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nd_uint16_t nexthopmtu;
|
2002-12-11 15:13:49 +08:00
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};
|
1999-10-08 07:47:09 +08:00
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/* rfc1256 */
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struct ih_rdiscovery {
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2017-12-19 13:41:03 +08:00
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nd_uint8_t ird_addrnum;
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nd_uint8_t ird_addrsiz;
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nd_uint16_t ird_lifetime;
|
2002-12-11 15:13:49 +08:00
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};
|
1999-10-08 07:47:09 +08:00
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struct id_rdiscovery {
|
2017-12-19 13:41:03 +08:00
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nd_uint32_t ird_addr;
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nd_uint32_t ird_pref;
|
2002-12-11 15:13:49 +08:00
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|
};
|
1999-10-08 07:47:09 +08:00
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|
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|
2006-12-12 18:48:43 +08:00
|
|
|
/*
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|
|
|
* draft-bonica-internet-icmp-08
|
|
|
|
*
|
|
|
|
* The Destination Unreachable, Time Exceeded
|
2019-01-24 00:28:14 +08:00
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|
|
* and Parameter Problem messages are slightly changed as per
|
2006-12-12 18:48:43 +08:00
|
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|
* the above draft. A new Length field gets added to give
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|
* the caller an idea about the length of the piggypacked
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|
* IP packet before the MPLS extension header starts.
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*
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|
* The Length field represents length of the padded "original datagram"
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|
|
* field measured in 32-bit words.
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*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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|
* | Type | Code | Checksum |
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|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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|
* | unused | Length | unused |
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|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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|
* | Internet Header + leading octets of original datagram |
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* | |
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* | // |
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* | |
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|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
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|
*/
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|
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|
|
|
|
|
struct icmp_ext_t {
|
2017-12-19 13:41:03 +08:00
|
|
|
nd_uint8_t icmp_type;
|
|
|
|
nd_uint8_t icmp_code;
|
|
|
|
nd_uint16_t icmp_checksum;
|
|
|
|
nd_byte icmp_reserved;
|
|
|
|
nd_uint8_t icmp_length;
|
|
|
|
nd_byte icmp_reserved2[2];
|
|
|
|
nd_byte icmp_ext_legacy_header[128]; /* extension header starts 128 bytes after ICMP header */
|
|
|
|
nd_byte icmp_ext_version_res[2];
|
|
|
|
nd_uint16_t icmp_ext_checksum;
|
|
|
|
nd_byte icmp_ext_data[1];
|
2006-12-12 18:48:43 +08:00
|
|
|
};
|
|
|
|
|
2004-06-14 23:08:08 +08:00
|
|
|
struct icmp_mpls_ext_object_header_t {
|
2017-12-19 13:41:03 +08:00
|
|
|
nd_uint16_t length;
|
|
|
|
nd_uint8_t class_num;
|
|
|
|
nd_uint8_t ctype;
|
2004-06-14 23:08:08 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
static const struct tok icmp_mpls_ext_obj_values[] = {
|
|
|
|
{ 1, "MPLS Stack Entry" },
|
|
|
|
{ 2, "Extended Payload" },
|
|
|
|
{ 0, NULL}
|
|
|
|
};
|
|
|
|
|
2005-06-22 21:43:24 +08:00
|
|
|
/* prototypes */
|
|
|
|
const char *icmp_tstamp_print(u_int);
|
|
|
|
|
|
|
|
/* print the milliseconds since midnight UTC */
|
|
|
|
const char *
|
2015-03-05 18:33:43 +08:00
|
|
|
icmp_tstamp_print(u_int tstamp)
|
|
|
|
{
|
2005-06-22 21:43:24 +08:00
|
|
|
u_int msec,sec,min,hrs;
|
|
|
|
|
|
|
|
static char buf[64];
|
|
|
|
|
|
|
|
msec = tstamp % 1000;
|
|
|
|
sec = tstamp / 1000;
|
|
|
|
min = sec / 60; sec -= min * 60;
|
|
|
|
hrs = min / 60; min -= hrs * 60;
|
2018-01-30 07:48:55 +08:00
|
|
|
nd_snprintf(buf, sizeof(buf), "%02u:%02u:%02u.%03u",hrs,min,sec,msec);
|
2005-06-22 21:43:24 +08:00
|
|
|
return buf;
|
|
|
|
}
|
2014-01-02 10:27:54 +08:00
|
|
|
|
1999-10-08 07:47:09 +08:00
|
|
|
void
|
2014-03-16 03:25:06 +08:00
|
|
|
icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *bp2,
|
|
|
|
int fragmented)
|
1999-10-08 07:47:09 +08:00
|
|
|
{
|
2001-06-29 03:53:42 +08:00
|
|
|
char *cp;
|
|
|
|
const struct icmp *dp;
|
2017-12-19 13:41:03 +08:00
|
|
|
uint8_t icmp_type, icmp_code;
|
2006-12-12 18:48:43 +08:00
|
|
|
const struct icmp_ext_t *ext_dp;
|
2001-06-29 03:53:42 +08:00
|
|
|
const struct ip *ip;
|
|
|
|
const char *str, *fmt;
|
|
|
|
const struct ip *oip;
|
2017-12-11 08:23:34 +08:00
|
|
|
uint8_t ip_proto;
|
2001-06-29 03:53:42 +08:00
|
|
|
const struct udphdr *ouh;
|
2014-04-23 15:20:40 +08:00
|
|
|
const uint8_t *obj_tptr;
|
|
|
|
uint32_t raw_label;
|
2006-12-12 18:48:43 +08:00
|
|
|
const u_char *snapend_save;
|
2004-06-14 23:08:08 +08:00
|
|
|
const struct icmp_mpls_ext_object_header_t *icmp_mpls_ext_object_header;
|
|
|
|
u_int hlen, dport, mtu, obj_tlen, obj_class_num, obj_ctype;
|
2000-10-05 12:10:00 +08:00
|
|
|
char buf[MAXHOSTNAMELEN + 100];
|
2011-06-14 05:08:51 +08:00
|
|
|
struct cksum_vec vec[1];
|
1999-10-08 07:47:09 +08:00
|
|
|
|
2018-03-14 23:54:17 +08:00
|
|
|
ndo->ndo_protocol = "icmp";
|
2015-04-27 08:24:42 +08:00
|
|
|
dp = (const struct icmp *)bp;
|
|
|
|
ext_dp = (const struct icmp_ext_t *)bp;
|
|
|
|
ip = (const struct ip *)bp2;
|
1999-10-08 07:47:09 +08:00
|
|
|
str = buf;
|
|
|
|
|
2018-01-08 17:17:48 +08:00
|
|
|
ND_TCHECK_1(dp->icmp_code);
|
2017-12-19 13:41:03 +08:00
|
|
|
icmp_type = EXTRACT_U_1(dp->icmp_type);
|
|
|
|
icmp_code = EXTRACT_U_1(dp->icmp_code);
|
|
|
|
switch (icmp_type) {
|
2002-06-12 01:08:37 +08:00
|
|
|
|
2001-10-27 15:21:34 +08:00
|
|
|
case ICMP_ECHO:
|
|
|
|
case ICMP_ECHOREPLY:
|
2018-01-08 17:17:48 +08:00
|
|
|
ND_TCHECK_2(dp->icmp_seq);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf), "echo %s, id %u, seq %u",
|
2017-12-19 13:41:03 +08:00
|
|
|
icmp_type == ICMP_ECHO ?
|
2005-07-02 00:10:02 +08:00
|
|
|
"request" : "reply",
|
2017-12-19 13:41:03 +08:00
|
|
|
EXTRACT_BE_U_2(dp->icmp_id),
|
|
|
|
EXTRACT_BE_U_2(dp->icmp_seq));
|
2001-10-27 15:21:34 +08:00
|
|
|
break;
|
1999-10-08 07:47:09 +08:00
|
|
|
|
|
|
|
case ICMP_UNREACH:
|
2018-01-24 15:44:27 +08:00
|
|
|
ND_TCHECK_4(dp->icmp_ip.ip_dst);
|
2017-12-19 13:41:03 +08:00
|
|
|
switch (icmp_code) {
|
1999-10-08 07:47:09 +08:00
|
|
|
|
|
|
|
case ICMP_UNREACH_PROTOCOL:
|
2017-12-11 08:23:34 +08:00
|
|
|
ND_TCHECK_1(dp->icmp_ip.ip_p);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
2018-01-12 03:52:30 +08:00
|
|
|
"%s protocol %u unreachable",
|
2018-01-30 22:51:20 +08:00
|
|
|
ipaddr_string(ndo, dp->icmp_ip.ip_dst),
|
2017-12-11 08:23:34 +08:00
|
|
|
EXTRACT_U_1(dp->icmp_ip.ip_p));
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_UNREACH_PORT:
|
2018-01-08 17:17:48 +08:00
|
|
|
ND_TCHECK_1(dp->icmp_ip.ip_p);
|
1999-10-08 07:47:09 +08:00
|
|
|
oip = &dp->icmp_ip;
|
2000-10-03 10:54:54 +08:00
|
|
|
hlen = IP_HL(oip) * 4;
|
2015-04-27 08:24:42 +08:00
|
|
|
ouh = (const struct udphdr *)(((const u_char *)oip) + hlen);
|
2018-01-08 17:17:48 +08:00
|
|
|
ND_TCHECK_2(ouh->uh_dport);
|
2017-12-19 13:41:03 +08:00
|
|
|
dport = EXTRACT_BE_U_2(ouh->uh_dport);
|
2017-12-11 08:23:34 +08:00
|
|
|
ip_proto = EXTRACT_U_1(oip->ip_p);
|
|
|
|
switch (ip_proto) {
|
1999-10-08 07:47:09 +08:00
|
|
|
|
|
|
|
case IPPROTO_TCP:
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
1999-10-08 07:47:09 +08:00
|
|
|
"%s tcp port %s unreachable",
|
2018-01-30 22:51:20 +08:00
|
|
|
ipaddr_string(ndo, oip->ip_dst),
|
2015-09-06 04:28:04 +08:00
|
|
|
tcpport_string(ndo, dport));
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
case IPPROTO_UDP:
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
1999-10-08 07:47:09 +08:00
|
|
|
"%s udp port %s unreachable",
|
2018-01-30 22:51:20 +08:00
|
|
|
ipaddr_string(ndo, oip->ip_dst),
|
2015-09-06 04:28:04 +08:00
|
|
|
udpport_string(ndo, dport));
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
2017-09-16 00:12:34 +08:00
|
|
|
"%s protocol %u port %u unreachable",
|
2018-01-30 22:51:20 +08:00
|
|
|
ipaddr_string(ndo, oip->ip_dst),
|
2017-12-11 08:23:34 +08:00
|
|
|
ip_proto, dport);
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_UNREACH_NEEDFRAG:
|
2000-04-28 19:46:11 +08:00
|
|
|
{
|
2017-12-14 02:17:47 +08:00
|
|
|
const struct mtu_discovery *mp;
|
2015-04-27 08:24:42 +08:00
|
|
|
mp = (const struct mtu_discovery *)(const u_char *)&dp->icmp_void;
|
2017-12-19 13:41:03 +08:00
|
|
|
mtu = EXTRACT_BE_U_2(mp->nexthopmtu);
|
2001-01-28 17:52:47 +08:00
|
|
|
if (mtu) {
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
2018-01-12 03:52:30 +08:00
|
|
|
"%s unreachable - need to frag (mtu %u)",
|
2018-01-30 22:51:20 +08:00
|
|
|
ipaddr_string(ndo, dp->icmp_ip.ip_dst), mtu);
|
2001-01-28 17:52:47 +08:00
|
|
|
} else {
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
2000-04-28 19:46:11 +08:00
|
|
|
"%s unreachable - need to frag",
|
2018-01-30 22:51:20 +08:00
|
|
|
ipaddr_string(ndo, dp->icmp_ip.ip_dst));
|
1999-10-08 07:47:09 +08:00
|
|
|
}
|
2000-04-28 19:46:11 +08:00
|
|
|
}
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2018-01-12 03:52:30 +08:00
|
|
|
fmt = tok2str(unreach2str, "#%u %%s unreachable",
|
2017-12-19 13:41:03 +08:00
|
|
|
icmp_code);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf), fmt,
|
2018-01-30 22:51:20 +08:00
|
|
|
ipaddr_string(ndo, dp->icmp_ip.ip_dst));
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_REDIRECT:
|
2018-01-24 15:44:27 +08:00
|
|
|
ND_TCHECK_4(dp->icmp_ip.ip_dst);
|
2018-01-12 03:52:30 +08:00
|
|
|
fmt = tok2str(type2str, "redirect-#%u %%s to net %%s",
|
2017-12-19 13:41:03 +08:00
|
|
|
icmp_code);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf), fmt,
|
2018-01-30 22:51:20 +08:00
|
|
|
ipaddr_string(ndo, dp->icmp_ip.ip_dst),
|
|
|
|
ipaddr_string(ndo, dp->icmp_gwaddr));
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_ROUTERADVERT:
|
2000-04-28 19:46:11 +08:00
|
|
|
{
|
2017-12-14 02:17:47 +08:00
|
|
|
const struct ih_rdiscovery *ihp;
|
|
|
|
const struct id_rdiscovery *idp;
|
1999-10-08 07:47:09 +08:00
|
|
|
u_int lifetime, num, size;
|
|
|
|
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf), "router advertisement");
|
1999-10-08 07:47:09 +08:00
|
|
|
cp = buf + strlen(buf);
|
|
|
|
|
2015-04-27 08:24:42 +08:00
|
|
|
ihp = (const struct ih_rdiscovery *)&dp->icmp_void;
|
2018-01-04 04:32:07 +08:00
|
|
|
ND_TCHECK_SIZE(ihp);
|
2001-07-20 03:37:31 +08:00
|
|
|
(void)strncpy(cp, " lifetime ", sizeof(buf) - (cp - buf));
|
1999-10-08 07:47:09 +08:00
|
|
|
cp = buf + strlen(buf);
|
2017-12-19 13:41:03 +08:00
|
|
|
lifetime = EXTRACT_BE_U_2(ihp->ird_lifetime);
|
2000-04-28 19:46:11 +08:00
|
|
|
if (lifetime < 60) {
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(cp, sizeof(buf) - (cp - buf), "%u",
|
2000-01-17 14:24:23 +08:00
|
|
|
lifetime);
|
2000-04-28 19:46:11 +08:00
|
|
|
} else if (lifetime < 60 * 60) {
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(cp, sizeof(buf) - (cp - buf), "%u:%02u",
|
1999-10-08 07:47:09 +08:00
|
|
|
lifetime / 60, lifetime % 60);
|
2000-04-28 19:46:11 +08:00
|
|
|
} else {
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(cp, sizeof(buf) - (cp - buf),
|
2000-01-17 14:24:23 +08:00
|
|
|
"%u:%02u:%02u",
|
1999-10-08 07:47:09 +08:00
|
|
|
lifetime / 3600,
|
|
|
|
(lifetime % 3600) / 60,
|
|
|
|
lifetime % 60);
|
2000-04-28 19:46:11 +08:00
|
|
|
}
|
1999-10-08 07:47:09 +08:00
|
|
|
cp = buf + strlen(buf);
|
|
|
|
|
2017-12-19 13:41:03 +08:00
|
|
|
num = EXTRACT_U_1(ihp->ird_addrnum);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(cp, sizeof(buf) - (cp - buf), " %u:", num);
|
1999-10-08 07:47:09 +08:00
|
|
|
cp = buf + strlen(buf);
|
|
|
|
|
2017-12-19 13:41:03 +08:00
|
|
|
size = EXTRACT_U_1(ihp->ird_addrsiz);
|
1999-10-08 07:47:09 +08:00
|
|
|
if (size != 2) {
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(cp, sizeof(buf) - (cp - buf),
|
2018-01-12 03:52:30 +08:00
|
|
|
" [size %u]", size);
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
}
|
2015-10-07 13:48:09 +08:00
|
|
|
idp = (const struct id_rdiscovery *)&dp->icmp_data;
|
2019-03-08 19:46:49 +08:00
|
|
|
while (num > 0) {
|
2018-01-04 04:32:07 +08:00
|
|
|
ND_TCHECK_SIZE(idp);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(cp, sizeof(buf) - (cp - buf), " {%s %u}",
|
2018-01-30 22:51:20 +08:00
|
|
|
ipaddr_string(ndo, idp->ird_addr),
|
2017-12-19 13:41:03 +08:00
|
|
|
EXTRACT_BE_U_4(idp->ird_pref));
|
1999-10-08 07:47:09 +08:00
|
|
|
cp = buf + strlen(buf);
|
2000-05-15 08:59:41 +08:00
|
|
|
++idp;
|
2019-03-08 19:46:49 +08:00
|
|
|
num--;
|
1999-10-08 07:47:09 +08:00
|
|
|
}
|
2000-04-28 19:46:11 +08:00
|
|
|
}
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_TIMXCEED:
|
2018-01-24 15:44:27 +08:00
|
|
|
ND_TCHECK_4(dp->icmp_ip.ip_dst);
|
2017-12-19 13:41:03 +08:00
|
|
|
switch (icmp_code) {
|
1999-10-08 07:47:09 +08:00
|
|
|
|
|
|
|
case ICMP_TIMXCEED_INTRANS:
|
|
|
|
str = "time exceeded in-transit";
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_TIMXCEED_REASS:
|
|
|
|
str = "ip reassembly time exceeded";
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf), "time exceeded-#%u",
|
2017-12-19 13:41:03 +08:00
|
|
|
icmp_code);
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_PARAMPROB:
|
2017-12-19 13:41:03 +08:00
|
|
|
if (icmp_code)
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
2017-12-19 13:41:03 +08:00
|
|
|
"parameter problem - code %u", icmp_code);
|
1999-10-08 07:47:09 +08:00
|
|
|
else {
|
2018-01-08 17:17:48 +08:00
|
|
|
ND_TCHECK_1(dp->icmp_pptr);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
2017-12-19 13:41:03 +08:00
|
|
|
"parameter problem - octet %u", EXTRACT_U_1(dp->icmp_pptr));
|
1999-10-08 07:47:09 +08:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_MASKREPLY:
|
2018-01-08 17:17:48 +08:00
|
|
|
ND_TCHECK_4(dp->icmp_mask);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf), "address mask is 0x%08x",
|
2017-12-19 13:41:03 +08:00
|
|
|
EXTRACT_BE_U_4(dp->icmp_mask));
|
2000-06-10 21:41:19 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_TSTAMP:
|
2018-01-08 17:17:48 +08:00
|
|
|
ND_TCHECK_2(dp->icmp_seq);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
2000-10-05 12:10:00 +08:00
|
|
|
"time stamp query id %u seq %u",
|
2017-12-19 13:41:03 +08:00
|
|
|
EXTRACT_BE_U_2(dp->icmp_id),
|
|
|
|
EXTRACT_BE_U_2(dp->icmp_seq));
|
2000-06-10 21:41:19 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
case ICMP_TSTAMPREPLY:
|
2018-01-08 17:17:48 +08:00
|
|
|
ND_TCHECK_4(dp->icmp_ttime);
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf, sizeof(buf),
|
2005-06-22 21:43:24 +08:00
|
|
|
"time stamp reply id %u seq %u: org %s",
|
2017-12-19 13:41:03 +08:00
|
|
|
EXTRACT_BE_U_2(dp->icmp_id),
|
|
|
|
EXTRACT_BE_U_2(dp->icmp_seq),
|
|
|
|
icmp_tstamp_print(EXTRACT_BE_U_4(dp->icmp_otime)));
|
2005-06-22 21:43:24 +08:00
|
|
|
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf+strlen(buf),sizeof(buf)-strlen(buf),", recv %s",
|
2017-12-19 13:41:03 +08:00
|
|
|
icmp_tstamp_print(EXTRACT_BE_U_4(dp->icmp_rtime)));
|
2018-01-30 07:48:55 +08:00
|
|
|
(void)nd_snprintf(buf+strlen(buf),sizeof(buf)-strlen(buf),", xmit %s",
|
2017-12-19 13:41:03 +08:00
|
|
|
icmp_tstamp_print(EXTRACT_BE_U_4(dp->icmp_ttime)));
|
2005-06-22 21:43:24 +08:00
|
|
|
break;
|
1999-10-08 07:47:09 +08:00
|
|
|
|
|
|
|
default:
|
2018-01-12 03:52:30 +08:00
|
|
|
str = tok2str(icmp2str, "type-#%u", icmp_type);
|
1999-10-08 07:47:09 +08:00
|
|
|
break;
|
|
|
|
}
|
2018-01-07 18:47:30 +08:00
|
|
|
ND_PRINT("ICMP %s, length %u", str, plen);
|
2014-03-16 03:25:06 +08:00
|
|
|
if (ndo->ndo_vflag && !fragmented) { /* don't attempt checksumming if this is a frag */
|
2017-12-11 19:46:51 +08:00
|
|
|
if (ND_TTEST_LEN(bp, plen)) {
|
2017-09-16 00:12:34 +08:00
|
|
|
uint16_t sum;
|
|
|
|
|
2015-04-27 08:24:42 +08:00
|
|
|
vec[0].ptr = (const uint8_t *)(const void *)dp;
|
2011-06-14 05:08:51 +08:00
|
|
|
vec[0].len = plen;
|
|
|
|
sum = in_cksum(vec, 1);
|
2002-07-22 05:03:07 +08:00
|
|
|
if (sum != 0) {
|
2017-12-19 13:41:03 +08:00
|
|
|
uint16_t icmp_sum = EXTRACT_BE_U_2(dp->icmp_cksum);
|
2018-01-07 18:47:30 +08:00
|
|
|
ND_PRINT(" (wrong icmp cksum %x (->%x)!)",
|
2002-07-22 05:03:07 +08:00
|
|
|
icmp_sum,
|
2018-01-07 18:47:30 +08:00
|
|
|
in_cksum_shouldbe(icmp_sum, sum));
|
2002-07-22 05:03:07 +08:00
|
|
|
}
|
1999-11-21 11:46:38 +08:00
|
|
|
}
|
|
|
|
}
|
2006-12-12 18:48:43 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* print the remnants of the IP packet.
|
|
|
|
* save the snaplength as this may get overidden in the IP printer.
|
|
|
|
*/
|
2017-12-19 13:41:03 +08:00
|
|
|
if (ndo->ndo_vflag >= 1 && ICMP_ERRTYPE(icmp_type)) {
|
2002-06-12 01:08:37 +08:00
|
|
|
bp += 8;
|
2018-01-07 18:47:30 +08:00
|
|
|
ND_PRINT("\n\t");
|
2015-04-27 08:24:42 +08:00
|
|
|
ip = (const struct ip *)bp;
|
2014-03-16 03:25:06 +08:00
|
|
|
snapend_save = ndo->ndo_snapend;
|
2017-12-19 13:41:03 +08:00
|
|
|
ND_TCHECK_2(ip->ip_len);
|
|
|
|
ip_print(ndo, bp, EXTRACT_BE_U_2(ip->ip_len));
|
2014-03-16 03:25:06 +08:00
|
|
|
ndo->ndo_snapend = snapend_save;
|
2002-06-12 01:08:37 +08:00
|
|
|
}
|
2004-06-14 23:08:08 +08:00
|
|
|
|
2018-05-11 02:38:16 +08:00
|
|
|
/* ndo_protocol reassignment after ip_print() call */
|
|
|
|
ndo->ndo_protocol = "icmp";
|
|
|
|
|
2006-12-12 18:48:43 +08:00
|
|
|
/*
|
2006-12-12 22:31:51 +08:00
|
|
|
* Attempt to decode the MPLS extensions only for some ICMP types.
|
2006-12-12 18:48:43 +08:00
|
|
|
*/
|
2017-12-19 13:41:03 +08:00
|
|
|
if (ndo->ndo_vflag >= 1 && plen > ICMP_EXTD_MINLEN && ICMP_MPLS_EXT_TYPE(icmp_type)) {
|
2004-06-15 15:43:03 +08:00
|
|
|
|
2018-01-04 04:32:07 +08:00
|
|
|
ND_TCHECK_SIZE(ext_dp);
|
2006-12-12 22:31:51 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Check first if the mpls extension header shows a non-zero length.
|
|
|
|
* If the length field is not set then silently verify the checksum
|
|
|
|
* to check if an extension header is present. This is expedient,
|
|
|
|
* however not all implementations set the length field proper.
|
|
|
|
*/
|
2017-12-19 13:41:03 +08:00
|
|
|
if (EXTRACT_U_1(ext_dp->icmp_length) == 0 &&
|
2017-12-15 05:15:11 +08:00
|
|
|
ND_TTEST_LEN(ext_dp->icmp_ext_version_res, plen - ICMP_EXTD_MINLEN)) {
|
2015-10-07 13:48:09 +08:00
|
|
|
vec[0].ptr = (const uint8_t *)(const void *)&ext_dp->icmp_ext_version_res;
|
2011-06-14 05:08:51 +08:00
|
|
|
vec[0].len = plen - ICMP_EXTD_MINLEN;
|
|
|
|
if (in_cksum(vec, 1)) {
|
|
|
|
return;
|
|
|
|
}
|
2006-12-12 22:31:51 +08:00
|
|
|
}
|
|
|
|
|
2018-01-07 18:47:30 +08:00
|
|
|
ND_PRINT("\n\tMPLS extension v%u",
|
|
|
|
ICMP_MPLS_EXT_EXTRACT_VERSION(*(ext_dp->icmp_ext_version_res)));
|
2014-01-02 10:27:54 +08:00
|
|
|
|
2004-06-15 15:34:22 +08:00
|
|
|
/*
|
|
|
|
* Sanity checking of the header.
|
|
|
|
*/
|
2006-12-12 18:48:43 +08:00
|
|
|
if (ICMP_MPLS_EXT_EXTRACT_VERSION(*(ext_dp->icmp_ext_version_res)) !=
|
|
|
|
ICMP_MPLS_EXT_VERSION) {
|
2018-01-07 18:47:30 +08:00
|
|
|
ND_PRINT(" packet not supported");
|
2004-06-15 15:34:22 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2004-06-14 23:08:08 +08:00
|
|
|
hlen = plen - ICMP_EXTD_MINLEN;
|
2017-12-15 05:15:11 +08:00
|
|
|
if (ND_TTEST_LEN(ext_dp->icmp_ext_version_res, hlen)) {
|
2017-02-04 12:02:45 +08:00
|
|
|
vec[0].ptr = (const uint8_t *)(const void *)&ext_dp->icmp_ext_version_res;
|
|
|
|
vec[0].len = hlen;
|
2018-01-07 18:47:30 +08:00
|
|
|
ND_PRINT(", checksum 0x%04x (%scorrect), length %u",
|
2017-11-23 06:54:09 +08:00
|
|
|
EXTRACT_BE_U_2(ext_dp->icmp_ext_checksum),
|
2017-02-04 12:02:45 +08:00
|
|
|
in_cksum(vec, 1) ? "in" : "",
|
2018-01-07 18:47:30 +08:00
|
|
|
hlen);
|
2017-02-04 12:02:45 +08:00
|
|
|
}
|
2004-06-14 23:08:08 +08:00
|
|
|
|
2004-06-15 15:43:03 +08:00
|
|
|
hlen -= 4; /* subtract common header size */
|
2015-04-27 08:24:42 +08:00
|
|
|
obj_tptr = (const uint8_t *)ext_dp->icmp_ext_data;
|
2004-06-14 23:08:08 +08:00
|
|
|
|
|
|
|
while (hlen > sizeof(struct icmp_mpls_ext_object_header_t)) {
|
|
|
|
|
2015-04-27 08:24:42 +08:00
|
|
|
icmp_mpls_ext_object_header = (const struct icmp_mpls_ext_object_header_t *)obj_tptr;
|
2018-01-04 04:32:07 +08:00
|
|
|
ND_TCHECK_SIZE(icmp_mpls_ext_object_header);
|
2017-11-23 06:54:09 +08:00
|
|
|
obj_tlen = EXTRACT_BE_U_2(icmp_mpls_ext_object_header->length);
|
2017-12-19 13:41:03 +08:00
|
|
|
obj_class_num = EXTRACT_U_1(icmp_mpls_ext_object_header->class_num);
|
|
|
|
obj_ctype = EXTRACT_U_1(icmp_mpls_ext_object_header->ctype);
|
2004-06-14 23:08:08 +08:00
|
|
|
obj_tptr += sizeof(struct icmp_mpls_ext_object_header_t);
|
|
|
|
|
2018-01-07 18:47:30 +08:00
|
|
|
ND_PRINT("\n\t %s Object (%u), Class-Type: %u, length %u",
|
2004-06-14 23:08:08 +08:00
|
|
|
tok2str(icmp_mpls_ext_obj_values,"unknown",obj_class_num),
|
|
|
|
obj_class_num,
|
|
|
|
obj_ctype,
|
2018-01-07 18:47:30 +08:00
|
|
|
obj_tlen);
|
2004-06-14 23:08:08 +08:00
|
|
|
|
|
|
|
hlen-=sizeof(struct icmp_mpls_ext_object_header_t); /* length field includes tlv header */
|
2006-12-12 18:48:43 +08:00
|
|
|
|
2014-01-02 10:27:54 +08:00
|
|
|
/* infinite loop protection */
|
2006-12-12 18:48:43 +08:00
|
|
|
if ((obj_class_num == 0) ||
|
|
|
|
(obj_tlen < sizeof(struct icmp_mpls_ext_object_header_t))) {
|
|
|
|
return;
|
|
|
|
}
|
2004-12-23 18:51:47 +08:00
|
|
|
obj_tlen-=sizeof(struct icmp_mpls_ext_object_header_t);
|
2004-06-14 23:08:08 +08:00
|
|
|
|
|
|
|
switch (obj_class_num) {
|
|
|
|
case 1:
|
|
|
|
switch(obj_ctype) {
|
|
|
|
case 1:
|
2017-11-25 03:44:53 +08:00
|
|
|
ND_TCHECK_4(obj_tptr);
|
2017-11-23 06:54:09 +08:00
|
|
|
raw_label = EXTRACT_BE_U_4(obj_tptr);
|
2018-01-07 18:47:30 +08:00
|
|
|
ND_PRINT("\n\t label %u, exp %u", MPLS_LABEL(raw_label), MPLS_EXP(raw_label));
|
2004-06-14 23:08:08 +08:00
|
|
|
if (MPLS_STACK(raw_label))
|
2018-01-07 18:47:30 +08:00
|
|
|
ND_PRINT(", [S]");
|
|
|
|
ND_PRINT(", ttl %u", MPLS_TTL(raw_label));
|
2004-06-14 23:08:08 +08:00
|
|
|
break;
|
|
|
|
default:
|
2014-03-16 03:25:06 +08:00
|
|
|
print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen);
|
2004-06-14 23:08:08 +08:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* FIXME those are the defined objects that lack a decoder
|
|
|
|
* you are welcome to contribute code ;-)
|
|
|
|
*/
|
|
|
|
case 2:
|
|
|
|
default:
|
2014-03-16 03:25:06 +08:00
|
|
|
print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen);
|
2004-06-14 23:08:08 +08:00
|
|
|
break;
|
|
|
|
}
|
2004-12-23 18:51:47 +08:00
|
|
|
if (hlen < obj_tlen)
|
|
|
|
break;
|
2004-06-14 23:08:08 +08:00
|
|
|
hlen -= obj_tlen;
|
|
|
|
obj_tptr += obj_tlen;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1999-10-08 07:47:09 +08:00
|
|
|
return;
|
|
|
|
trunc:
|
2018-05-11 02:38:16 +08:00
|
|
|
nd_print_trunc(ndo);
|
1999-10-08 07:47:09 +08:00
|
|
|
}
|