diff options
Diffstat (limited to 'contrib/tcpdump/print-igmp.c')
-rw-r--r-- | contrib/tcpdump/print-igmp.c | 336 |
1 files changed, 0 insertions, 336 deletions
diff --git a/contrib/tcpdump/print-igmp.c b/contrib/tcpdump/print-igmp.c deleted file mode 100644 index c310d55..0000000 --- a/contrib/tcpdump/print-igmp.c +++ /dev/null @@ -1,336 +0,0 @@ -/* - * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * 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. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/tcpdump/print-igmp.c,v 1.15 2004/03/24 00:59:16 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <tcpdump-stdinc.h> - -#include <stdio.h> -#include <string.h> - -#include "interface.h" -#include "addrtoname.h" -#include "extract.h" /* must come after interface.h */ - -#ifndef IN_CLASSD -#define IN_CLASSD(i) (((int32_t)(i) & 0xf0000000) == 0xe0000000) -#endif - -/* (following from ipmulti/mrouted/prune.h) */ - -/* - * The packet format for a traceroute request. - */ -struct tr_query { - u_int32_t tr_src; /* traceroute source */ - u_int32_t tr_dst; /* traceroute destination */ - u_int32_t tr_raddr; /* traceroute response address */ - u_int32_t tr_rttlqid; /* response ttl and qid */ -}; - -#define TR_GETTTL(x) (int)(((x) >> 24) & 0xff) -#define TR_GETQID(x) ((x) & 0x00ffffff) - -/* - * Traceroute response format. A traceroute response has a tr_query at the - * beginning, followed by one tr_resp for each hop taken. - */ -struct tr_resp { - u_int32_t tr_qarr; /* query arrival time */ - u_int32_t tr_inaddr; /* incoming interface address */ - u_int32_t tr_outaddr; /* outgoing interface address */ - u_int32_t tr_rmtaddr; /* parent address in source tree */ - u_int32_t tr_vifin; /* input packet count on interface */ - u_int32_t tr_vifout; /* output packet count on interface */ - u_int32_t tr_pktcnt; /* total incoming packets for src-grp */ - u_int8_t tr_rproto; /* routing proto deployed on router */ - u_int8_t tr_fttl; /* ttl required to forward on outvif */ - u_int8_t tr_smask; /* subnet mask for src addr */ - u_int8_t tr_rflags; /* forwarding error codes */ -}; - -/* defs within mtrace */ -#define TR_QUERY 1 -#define TR_RESP 2 - -/* fields for tr_rflags (forwarding error codes) */ -#define TR_NO_ERR 0 -#define TR_WRONG_IF 1 -#define TR_PRUNED 2 -#define TR_OPRUNED 3 -#define TR_SCOPED 4 -#define TR_NO_RTE 5 -#define TR_NO_FWD 7 -#define TR_NO_SPACE 0x81 -#define TR_OLD_ROUTER 0x82 - -/* fields for tr_rproto (routing protocol) */ -#define TR_PROTO_DVMRP 1 -#define TR_PROTO_MOSPF 2 -#define TR_PROTO_PIM 3 -#define TR_PROTO_CBT 4 - -/* igmpv3 report types */ -static struct tok igmpv3report2str[] = { - { 1, "is_in" }, - { 2, "is_ex" }, - { 3, "to_in" }, - { 4, "to_ex" }, - { 5, "allow" }, - { 6, "block" }, - { 0, NULL } -}; - -static void -print_mtrace(register const u_char *bp, register u_int len) -{ - register const struct tr_query *tr = (const struct tr_query *)(bp + 8); - - TCHECK(*tr); - if (len < 8 + sizeof (struct tr_query)) { - (void)printf(" [invalid len %d]", len); - return; - } - printf("mtrace %u: %s to %s reply-to %s", - TR_GETQID(EXTRACT_32BITS(&tr->tr_rttlqid)), - ipaddr_string(&tr->tr_src), ipaddr_string(&tr->tr_dst), - ipaddr_string(&tr->tr_raddr)); - if (IN_CLASSD(EXTRACT_32BITS(&tr->tr_raddr))) - printf(" with-ttl %d", TR_GETTTL(EXTRACT_32BITS(&tr->tr_rttlqid))); - return; -trunc: - (void)printf("[|igmp]"); - return; -} - -static void -print_mresp(register const u_char *bp, register u_int len) -{ - register const struct tr_query *tr = (const struct tr_query *)(bp + 8); - - TCHECK(*tr); - if (len < 8 + sizeof (struct tr_query)) { - (void)printf(" [invalid len %d]", len); - return; - } - printf("mresp %lu: %s to %s reply-to %s", - (u_long)TR_GETQID(EXTRACT_32BITS(&tr->tr_rttlqid)), - ipaddr_string(&tr->tr_src), ipaddr_string(&tr->tr_dst), - ipaddr_string(&tr->tr_raddr)); - if (IN_CLASSD(EXTRACT_32BITS(&tr->tr_raddr))) - printf(" with-ttl %d", TR_GETTTL(EXTRACT_32BITS(&tr->tr_rttlqid))); - return; -trunc: - (void)printf("[|igmp]"); - return; -} - -static void -print_igmpv3_report(register const u_char *bp, register u_int len) -{ - u_int group, nsrcs, ngroups; - register u_int i, j; - - /* Minimum len is 16, and should be a multiple of 4 */ - if (len < 16 || len & 0x03) { - (void)printf(" [invalid len %d]", len); - return; - } - TCHECK2(bp[6], 2); - ngroups = EXTRACT_16BITS(&bp[6]); - (void)printf(", %d group record(s)", ngroups); - if (vflag > 0) { - /* Print the group records */ - group = 8; - for (i=0; i<ngroups; i++) { - if (len < group+8) { - (void)printf(" [invalid number of groups]"); - return; - } - TCHECK2(bp[group+4], 4); - (void)printf(" [gaddr %s", ipaddr_string(&bp[group+4])); - (void)printf(" %s", tok2str(igmpv3report2str, " [v3-report-#%d]", - bp[group])); - nsrcs = EXTRACT_16BITS(&bp[group+2]); - /* Check the number of sources and print them */ - if (len < group+8+(nsrcs<<2)) { - (void)printf(" [invalid number of sources %d]", nsrcs); - return; - } - if (vflag == 1) - (void)printf(", %d source(s)", nsrcs); - else { - /* Print the sources */ - (void)printf(" {"); - for (j=0; j<nsrcs; j++) { - TCHECK2(bp[group+8+(j<<2)], 4); - (void)printf(" %s", ipaddr_string(&bp[group+8+(j<<2)])); - } - (void)printf(" }"); - } - /* Next group record */ - group += 8 + (nsrcs << 2); - (void)printf("]"); - } - } - return; -trunc: - (void)printf("[|igmp]"); - return; -} - -static void -print_igmpv3_query(register const u_char *bp, register u_int len) -{ - u_int mrc; - int mrt; - u_int nsrcs; - register u_int i; - - (void)printf(" v3"); - /* Minimum len is 12, and should be a multiple of 4 */ - if (len < 12 || len & 0x03) { - (void)printf(" [invalid len %d]", len); - return; - } - TCHECK(bp[1]); - mrc = bp[1]; - if (mrc < 128) { - mrt = mrc; - } else { - mrt = ((mrc & 0x0f) | 0x10) << (((mrc & 0x70) >> 4) + 3); - } - if (mrc != 100) { - (void)printf(" [max resp time "); - relts_print(mrt); - (void)printf("]"); - } - TCHECK2(bp[4], 4); - if (EXTRACT_32BITS(&bp[4]) == 0) - return; - (void)printf(" [gaddr %s", ipaddr_string(&bp[4])); - TCHECK2(bp[10], 2); - nsrcs = EXTRACT_16BITS(&bp[10]); - if (nsrcs > 0) { - if (len < 12 + (nsrcs << 2)) - (void)printf(" [invalid number of sources]"); - else if (vflag > 1) { - (void)printf(" {"); - for (i=0; i<nsrcs; i++) { - TCHECK2(bp[12+(i<<2)], 4); - (void)printf(" %s", ipaddr_string(&bp[12+(i<<2)])); - } - (void)printf(" }"); - } else - (void)printf(", %d source(s)", nsrcs); - } - (void)printf("]"); - return; -trunc: - (void)printf("[|igmp]"); - return; -} - -void -igmp_print(register const u_char *bp, register u_int len) -{ - if (qflag) { - (void)printf("igmp"); - return; - } - - TCHECK(bp[0]); - switch (bp[0]) { - case 0x11: - (void)printf("igmp query"); - if (len >= 12) - print_igmpv3_query(bp, len); - else { - TCHECK(bp[1]); - if (bp[1]) { - (void)printf(" v2"); - if (bp[1] != 100) - (void)printf(" [max resp time %d]", bp[1]); - } else - (void)printf(" v1"); - TCHECK2(bp[4], 4); - if (EXTRACT_32BITS(&bp[4])) - (void)printf(" [gaddr %s]", ipaddr_string(&bp[4])); - if (len != 8) - (void)printf(" [len %d]", len); - } - break; - case 0x12: - TCHECK2(bp[4], 4); - (void)printf("igmp v1 report %s", ipaddr_string(&bp[4])); - if (len != 8) - (void)printf(" [len %d]", len); - break; - case 0x16: - TCHECK2(bp[4], 4); - (void)printf("igmp v2 report %s", ipaddr_string(&bp[4])); - break; - case 0x22: - (void)printf("igmp v3 report"); - print_igmpv3_report(bp, len); - break; - case 0x17: - TCHECK2(bp[4], 4); - (void)printf("igmp leave %s", ipaddr_string(&bp[4])); - break; - case 0x13: - (void)printf("igmp dvmrp"); - if (len < 8) - (void)printf(" [len %d]", len); - else - dvmrp_print(bp, len); - break; - case 0x14: - (void)printf("igmp pimv1"); - pimv1_print(bp, len); - break; - case 0x1e: - print_mresp(bp, len); - break; - case 0x1f: - print_mtrace(bp, len); - break; - default: - (void)printf("igmp-%d", bp[0]); - break; - } - - if (vflag && TTEST2(bp[0], len)) { - /* Check the IGMP checksum */ - if (in_cksum((const u_short*)bp, len, 0)) - printf(" bad igmp cksum %x!", EXTRACT_16BITS(&bp[2])); - } - return; -trunc: - fputs("[|igmp]", stdout); -} |