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tcpdump/print-dvmrp.c

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Initial revision
1999-10-08 07:47:09 +08:00
/*
* Copyright (c) 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.
*/
Move the printer summaries from INSTALL.txt to each printer with the tag '\summary:' for greping. Remark: Currently some printers have no summary line. Moreover: Summarize all printers with a single line in INSTALL.txt
2016-08-14 21:42:19 +08:00
/* \summary: Distance Vector Multicast Routing Protocol printer */
Switch to config.h instead of passing defines in DEFS.
1999-11-21 17:36:43 +08:00
#ifdef HAVE_CONFIG_H
#include "config.h"
Initial revision
1999-10-08 07:47:09 +08:00
#endif
Rename 'tcpdump-stdinc.h' to 'netdissect-stdinc.h' Get the full log via: git log --follow netdissect-stdinc.h
2015-09-10 04:42:38 +08:00
#include <netdissect-stdinc.h>
Initial revision
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Printers must include 'netdissect.h', not 'interface.h'
2015-09-06 05:35:58 +08:00
#include "netdissect.h"
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
#include "extract.h"
Initial revision
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#include "addrtoname.h"
/*
* DVMRP message types and flag values shamelessly stolen from
* mrouted/dvmrp.h.
*/
#define DVMRP_PROBE 1 /* for finding neighbors */
#define DVMRP_REPORT 2 /* for reporting some or all routes */
#define DVMRP_ASK_NEIGHBORS 3 /* sent by mapper, asking for a list */
Don't print multiple lines for a single packet unless -vv
2001-05-10 13:30:20 +08:00
/* of this router's neighbors */
Initial revision
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#define DVMRP_NEIGHBORS 4 /* response to such a request */
#define DVMRP_ASK_NEIGHBORS2 5 /* as above, want new format reply */
#define DVMRP_NEIGHBORS2 6
#define DVMRP_PRUNE 7 /* prune message */
#define DVMRP_GRAFT 8 /* graft message */
#define DVMRP_GRAFT_ACK 9 /* graft acknowledgement */
/*
* 'flags' byte values in DVMRP_NEIGHBORS2 reply.
*/
#define DVMRP_NF_TUNNEL 0x01 /* neighbors reached via tunnel */
#define DVMRP_NF_SRCRT 0x02 /* tunnel uses IP source routing */
#define DVMRP_NF_DOWN 0x10 /* kernel state of interface */
#define DVMRP_NF_DISABLED 0x20 /* administratively disabled */
#define DVMRP_NF_QUERIER 0x40 /* I am the subnet's querier */
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
static int print_probe(netdissect_options *, const u_char *, const u_char *, u_int);
static int print_report(netdissect_options *, const u_char *, const u_char *, u_int);
static int print_neighbors(netdissect_options *, const u_char *, const u_char *, u_int);
More EXTRACT_8BITS() and other cleanups. Get rid of casts to (int) that aren't needed or wanted. If a field is unsigned, use an unsigned variable for it, print it with %u, not %d, and don't cast it to int. Replace a static variable in print-dvmrp.c with a local variable in dvmrp_print() and a parameter to print_neighbors2().
2017-11-23 02:15:49 +08:00
static int print_neighbors2(netdissect_options *, const u_char *, const u_char *, u_int, uint32_t);
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
static int print_prune(netdissect_options *, const u_char *);
static int print_graft(netdissect_options *, const u_char *);
static int print_graft_ack(netdissect_options *, const u_char *);
Initial revision
1999-10-08 07:47:09 +08:00
void
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
dvmrp_print(netdissect_options *ndo,
register const u_char *bp, register u_int len)
Initial revision
1999-10-08 07:47:09 +08:00
{
register const u_char *ep;
register u_char type;
More EXTRACT_8BITS() and other cleanups. Get rid of casts to (int) that aren't needed or wanted. If a field is unsigned, use an unsigned variable for it, print it with %u, not %d, and don't cast it to int. Replace a static variable in print-dvmrp.c with a local variable in dvmrp_print() and a parameter to print_neighbors2().
2017-11-23 02:15:49 +08:00
uint32_t target_level;
Initial revision
1999-10-08 07:47:09 +08:00
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
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ep = (const u_char *)ndo->ndo_snapend;
Initial revision
1999-10-08 07:47:09 +08:00
if (bp >= ep)
return;
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK(bp[1]);
Initial revision
1999-10-08 07:47:09 +08:00
type = bp[1];
Don't print multiple lines for a single packet unless -vv
2001-05-10 13:30:20 +08:00
/* Skip IGMP header */
bp += 8;
Initial revision
1999-10-08 07:47:09 +08:00
len -= 8;
switch (type) {
case DVMRP_PROBE:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " Probe"));
if (ndo->ndo_vflag) {
if (print_probe(ndo, bp, ep, len) < 0)
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
goto trunc;
}
Initial revision
1999-10-08 07:47:09 +08:00
break;
case DVMRP_REPORT:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " Report"));
if (ndo->ndo_vflag > 1) {
if (print_report(ndo, bp, ep, len) < 0)
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
goto trunc;
}
Initial revision
1999-10-08 07:47:09 +08:00
break;
case DVMRP_ASK_NEIGHBORS:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
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ND_PRINT((ndo, " Ask-neighbors(old)"));
Initial revision
1999-10-08 07:47:09 +08:00
break;
case DVMRP_NEIGHBORS:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " Neighbors(old)"));
if (print_neighbors(ndo, bp, ep, len) < 0)
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
goto trunc;
Initial revision
1999-10-08 07:47:09 +08:00
break;
case DVMRP_ASK_NEIGHBORS2:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " Ask-neighbors2"));
Initial revision
1999-10-08 07:47:09 +08:00
break;
case DVMRP_NEIGHBORS2:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " Neighbors2"));
Initial revision
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/*
* extract version and capabilities from IGMP group
* address field
*/
bp -= 4;
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 4);
Initial revision
1999-10-08 07:47:09 +08:00
target_level = (bp[0] << 24) | (bp[1] << 16) |
(bp[2] << 8) | bp[3];
bp += 4;
More EXTRACT_8BITS() and other cleanups. Get rid of casts to (int) that aren't needed or wanted. If a field is unsigned, use an unsigned variable for it, print it with %u, not %d, and don't cast it to int. Replace a static variable in print-dvmrp.c with a local variable in dvmrp_print() and a parameter to print_neighbors2().
2017-11-23 02:15:49 +08:00
if (print_neighbors2(ndo, bp, ep, len, target_level) < 0)
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
goto trunc;
Initial revision
1999-10-08 07:47:09 +08:00
break;
case DVMRP_PRUNE:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " Prune"));
if (print_prune(ndo, bp) < 0)
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
goto trunc;
Initial revision
1999-10-08 07:47:09 +08:00
break;
case DVMRP_GRAFT:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " Graft"));
if (print_graft(ndo, bp) < 0)
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
goto trunc;
Initial revision
1999-10-08 07:47:09 +08:00
break;
case DVMRP_GRAFT_ACK:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " Graft-ACK"));
if (print_graft_ack(ndo, bp) < 0)
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
goto trunc;
Initial revision
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break;
default:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " [type %d]", type));
Initial revision
1999-10-08 07:47:09 +08:00
break;
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return;
trunc:
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, "[|dvmrp]"));
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return;
Initial revision
1999-10-08 07:47:09 +08:00
}
whitespace changes
2014-01-02 10:27:54 +08:00
static int
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
print_report(netdissect_options *ndo,
register const u_char *bp, register const u_char *ep,
register u_int len)
Initial revision
1999-10-08 07:47:09 +08:00
{
u_intN_t is dead, long live uintN_t. And, as we require at least autoconf 2.61, and as autoconf 2.61 and later have AC_TYPE_UINTn_T and AC_TYPE_INTn_T macros, we use them to define the uintN_t and intN_t macros if the system doesn't define them for us. This lets us get rid of bitypes.h as well.
2014-04-23 15:20:40 +08:00
register uint32_t mask, origin;
Add a few more GCC warnings on GCC >= 2 for ".devel" builds. From Neil T. Spring: fixes for many of those warnings: addrtoname.c, configure.in: Linux needs netinet/ether.h for ether_ntohost print-*.c: change char *foo = "bar" to const char *foo = "bar" to appease -Wwrite-strings; should affect no run-time behavior. print-*.c: make some variables unsigned. print-bgp.c: plen ('prefix len') is unsigned, no reason to validate by comparing to zero. print-cnfp.c, print-rx.c: use intoa, provided by addrtoname, instead of inet_ntoa. print-domain.c: unsigned int l; (l=foo()) < 0 is guaranteed to be false, so check for (u_int)-1, which represents failure, explicitly. print-isakmp.c: complete initialization of attrmap objects. print-lwres.c: "if(x); print foo;" seemed much more likely to be intended to be "if(x) { print foo; }". print-smb.c: complete initialization of some structures. In addition, add some fixes for the signed vs. unsigned comparison warnings: extract.h: cast the result of the byte-extraction-and-combining, as, at least for the 16-bit version, C's integral promotions will turn "u_int16_t" into "int" if there are other "int"s nearby. print-*.c: make some more variables unsigned, or add casts to an unsigned type of signed values known not to be negative, or add casts to "int" of unsigned values known to fit in an "int", and make other changes needed to handle the aforementioned variables now being unsigned. print-isakmp.c: clean up the handling of error/status indicators in notify messages. print-ppp.c: get rid of a check that an unsigned quantity is >= 0. print-radius.c: clean up some of the bounds checking. print-smb.c: extract the word count into a "u_int" to avoid the aforementioned problems with C's integral promotions. print-snmp.c: change a check that an unsigned variable is >= 0 to a check that it's != 0. Also, fix some formats to use "%u" rather than "%d" for unsigned quantities.
2002-09-05 08:00:07 +08:00
register int metric, done;
register u_int i, width;
Initial revision
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while (len > 0) {
if (len < 3) {
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " [|]"));
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Initial revision
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}
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 3);
u_intN_t is dead, long live uintN_t. And, as we require at least autoconf 2.61, and as autoconf 2.61 and later have AC_TYPE_UINTn_T and AC_TYPE_INTn_T macros, we use them to define the uintN_t and intN_t macros if the system doesn't define them for us. This lets us get rid of bitypes.h as well.
2014-04-23 15:20:40 +08:00
mask = (uint32_t)0xff << 24 | bp[0] << 16 | bp[1] << 8 | bp[2];
Initial revision
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width = 1;
if (bp[0])
width = 2;
if (bp[1])
width = 3;
if (bp[2])
width = 4;
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, "\n\tMask %s", intoa(htonl(mask))));
Initial revision
1999-10-08 07:47:09 +08:00
bp += 3;
len -= 3;
do {
if (bp + width + 1 > ep) {
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " [|]"));
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Initial revision
1999-10-08 07:47:09 +08:00
}
if (len < width + 1) {
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, "\n\t [Truncated Report]"));
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Initial revision
1999-10-08 07:47:09 +08:00
}
origin = 0;
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
for (i = 0; i < width; ++i) {
More EXTRACT_8BITS() changes. Use ND_CHECK_nBITS() more as well.
2017-11-20 09:59:51 +08:00
ND_TCHECK_8BITS(bp);
origin = origin << 8 | EXTRACT_8BITS(bp);
bp++;
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
}
Initial revision
1999-10-08 07:47:09 +08:00
for ( ; i < 4; ++i)
origin <<= 8;
More EXTRACT_8BITS() changes. Use ND_CHECK_nBITS() more as well.
2017-11-20 09:59:51 +08:00
ND_TCHECK_8BITS(bp);
metric = EXTRACT_8BITS(bp);
bp++;
Initial revision
1999-10-08 07:47:09 +08:00
done = metric & 0x80;
metric &= 0x7f;
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, "\n\t %s metric %d", intoa(htonl(origin)),
metric));
Initial revision
1999-10-08 07:47:09 +08:00
len -= width + 1;
} while (!done);
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
trunc:
return (-1);
Initial revision
1999-10-08 07:47:09 +08:00
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
static int
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
print_probe(netdissect_options *ndo,
register const u_char *bp, register const u_char *ep,
register u_int len)
Initial revision
1999-10-08 07:47:09 +08:00
{
u_intN_t is dead, long live uintN_t. And, as we require at least autoconf 2.61, and as autoconf 2.61 and later have AC_TYPE_UINTn_T and AC_TYPE_INTn_T macros, we use them to define the uintN_t and intN_t macros if the system doesn't define them for us. This lets us get rid of bitypes.h as well.
2014-04-23 15:20:40 +08:00
register uint32_t genid;
Initial revision
1999-10-08 07:47:09 +08:00
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 4);
Initial revision
1999-10-08 07:47:09 +08:00
if ((len < 4) || ((bp + 4) > ep)) {
/* { (ctags) */
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " [|}"));
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Initial revision
1999-10-08 07:47:09 +08:00
}
genid = (bp[0] << 24) | (bp[1] << 16) | (bp[2] << 8) | bp[3];
bp += 4;
len -= 4;
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, ndo->ndo_vflag > 1 ? "\n\t" : " "));
ND_PRINT((ndo, "genid %u", genid));
if (ndo->ndo_vflag < 2)
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Initial revision
1999-10-08 07:47:09 +08:00
while ((len > 0) && (bp < ep)) {
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 4);
Netdissectify the to-name resolution routines. Have them take a netdissect_options * argument, and get the "no name resolution" flag from it. Move the declaration of dnaddr_string to addrtoname.h, along with the other XXX-to-string routines.
2014-04-04 15:43:46 +08:00
ND_PRINT((ndo, "\n\tneighbor %s", ipaddr_string(ndo, bp)));
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
bp += 4; len -= 4;
Initial revision
1999-10-08 07:47:09 +08:00
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
trunc:
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (-1);
Initial revision
1999-10-08 07:47:09 +08:00
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
static int
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
print_neighbors(netdissect_options *ndo,
register const u_char *bp, register const u_char *ep,
register u_int len)
Initial revision
1999-10-08 07:47:09 +08:00
{
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
const u_char *laddr;
Initial revision
1999-10-08 07:47:09 +08:00
register u_char metric;
register u_char thresh;
register int ncount;
while (len > 0 && bp < ep) {
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 7);
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
laddr = bp;
bp += 4;
More EXTRACT_8BITS() changes. Use ND_CHECK_nBITS() more as well.
2017-11-20 09:59:51 +08:00
metric = EXTRACT_8BITS(bp);
bp++;
thresh = EXTRACT_8BITS(bp);
bp++;
ncount = EXTRACT_8BITS(bp);
bp++;
Initial revision
1999-10-08 07:47:09 +08:00
len -= 7;
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
while (--ncount >= 0) {
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 4);
Netdissectify the to-name resolution routines. Have them take a netdissect_options * argument, and get the "no name resolution" flag from it. Move the declaration of dnaddr_string to addrtoname.h, along with the other XXX-to-string routines.
2014-04-04 15:43:46 +08:00
ND_PRINT((ndo, " [%s ->", ipaddr_string(ndo, laddr)));
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " %s, (%d/%d)]",
Netdissectify the to-name resolution routines. Have them take a netdissect_options * argument, and get the "no name resolution" flag from it. Move the declaration of dnaddr_string to addrtoname.h, along with the other XXX-to-string routines.
2014-04-04 15:43:46 +08:00
ipaddr_string(ndo, bp), metric, thresh));
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
bp += 4;
Initial revision
1999-10-08 07:47:09 +08:00
len -= 4;
}
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
trunc:
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (-1);
Initial revision
1999-10-08 07:47:09 +08:00
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
static int
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
print_neighbors2(netdissect_options *ndo,
register const u_char *bp, register const u_char *ep,
More EXTRACT_8BITS() and other cleanups. Get rid of casts to (int) that aren't needed or wanted. If a field is unsigned, use an unsigned variable for it, print it with %u, not %d, and don't cast it to int. Replace a static variable in print-dvmrp.c with a local variable in dvmrp_print() and a parameter to print_neighbors2().
2017-11-23 02:15:49 +08:00
register u_int len, uint32_t target_level)
Initial revision
1999-10-08 07:47:09 +08:00
{
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
const u_char *laddr;
Initial revision
1999-10-08 07:47:09 +08:00
register u_char metric, thresh, flags;
register int ncount;
More EXTRACT_8BITS() and other cleanups. Get rid of casts to (int) that aren't needed or wanted. If a field is unsigned, use an unsigned variable for it, print it with %u, not %d, and don't cast it to int. Replace a static variable in print-dvmrp.c with a local variable in dvmrp_print() and a parameter to print_neighbors2().
2017-11-23 02:15:49 +08:00
ND_PRINT((ndo, " (v %u.%u):",
target_level & 0xff,
(target_level >> 8) & 0xff));
Initial revision
1999-10-08 07:47:09 +08:00
while (len > 0 && bp < ep) {
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 8);
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
laddr = bp;
bp += 4;
More EXTRACT_8BITS() changes. Use ND_CHECK_nBITS() more as well.
2017-11-20 09:59:51 +08:00
metric = EXTRACT_8BITS(bp);
bp++;
thresh = EXTRACT_8BITS(bp);
bp++;
flags = EXTRACT_8BITS(bp);
bp++;
ncount = EXTRACT_8BITS(bp);
bp++;
Initial revision
1999-10-08 07:47:09 +08:00
len -= 8;
while (--ncount >= 0 && (len >= 4) && (bp + 4) <= ep) {
Netdissectify the to-name resolution routines. Have them take a netdissect_options * argument, and get the "no name resolution" flag from it. Move the declaration of dnaddr_string to addrtoname.h, along with the other XXX-to-string routines.
2014-04-04 15:43:46 +08:00
ND_PRINT((ndo, " [%s -> ", ipaddr_string(ndo, laddr)));
ND_PRINT((ndo, "%s (%d/%d", ipaddr_string(ndo, bp),
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
metric, thresh));
Initial revision
1999-10-08 07:47:09 +08:00
if (flags & DVMRP_NF_TUNNEL)
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, "/tunnel"));
Initial revision
1999-10-08 07:47:09 +08:00
if (flags & DVMRP_NF_SRCRT)
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, "/srcrt"));
Initial revision
1999-10-08 07:47:09 +08:00
if (flags & DVMRP_NF_QUERIER)
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, "/querier"));
Initial revision
1999-10-08 07:47:09 +08:00
if (flags & DVMRP_NF_DISABLED)
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, "/disabled"));
Initial revision
1999-10-08 07:47:09 +08:00
if (flags & DVMRP_NF_DOWN)
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, "/down"));
ND_PRINT((ndo, ")]"));
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
bp += 4;
Initial revision
1999-10-08 07:47:09 +08:00
len -= 4;
}
if (ncount != -1) {
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " [|]"));
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Initial revision
1999-10-08 07:47:09 +08:00
}
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
trunc:
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (-1);
Initial revision
1999-10-08 07:47:09 +08:00
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
static int
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
print_prune(netdissect_options *ndo,
register const u_char *bp)
Initial revision
1999-10-08 07:47:09 +08:00
{
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 12);
Netdissectify the to-name resolution routines. Have them take a netdissect_options * argument, and get the "no name resolution" flag from it. Move the declaration of dnaddr_string to addrtoname.h, along with the other XXX-to-string routines.
2014-04-04 15:43:46 +08:00
ND_PRINT((ndo, " src %s grp %s", ipaddr_string(ndo, bp), ipaddr_string(ndo, bp + 4)));
Initial revision
1999-10-08 07:47:09 +08:00
bp += 8;
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_PRINT((ndo, " timer "));
Rename EXTRACT_nBITS() macros to EXTRACT_BE_nBITS() It indicates clearly that these macros are used to extract big-endian integral values.
2017-11-18 18:52:52 +08:00
unsigned_relts_print(ndo, EXTRACT_BE_32BITS(bp));
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
trunc:
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (-1);
Initial revision
1999-10-08 07:47:09 +08:00
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
static int
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
print_graft(netdissect_options *ndo,
register const u_char *bp)
Initial revision
1999-10-08 07:47:09 +08:00
{
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 8);
Netdissectify the to-name resolution routines. Have them take a netdissect_options * argument, and get the "no name resolution" flag from it. Move the declaration of dnaddr_string to addrtoname.h, along with the other XXX-to-string routines.
2014-04-04 15:43:46 +08:00
ND_PRINT((ndo, " src %s grp %s", ipaddr_string(ndo, bp), ipaddr_string(ndo, bp + 4)));
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
trunc:
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (-1);
Initial revision
1999-10-08 07:47:09 +08:00
}
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
static int
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
print_graft_ack(netdissect_options *ndo,
register const u_char *bp)
Initial revision
1999-10-08 07:47:09 +08:00
{
NDOize 7 more small decoders This change converts DVMRP, DLT_ENC, EGP, GeoNet, NetFlow, SLIP and TFTP decoders.
2014-03-21 20:48:24 +08:00
ND_TCHECK2(bp[0], 8);
Netdissectify the to-name resolution routines. Have them take a netdissect_options * argument, and get the "no name resolution" flag from it. Move the declaration of dnaddr_string to addrtoname.h, along with the other XXX-to-string routines.
2014-04-04 15:43:46 +08:00
ND_PRINT((ndo, " src %s grp %s", ipaddr_string(ndo, bp), ipaddr_string(ndo, bp + 4)));
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (0);
Use standard truncation checks and word extraction instead of homegrown.
1999-11-22 12:30:34 +08:00
trunc:
Add missing bounds checking to the DVMRP and PIM print routines. Instead of checking that there are 8 bytes available at the beginning of an IGMP packet - which there might not be, e.g. with some DVMRP packets - do the checks as necessary before fetching values.
2003-11-19 17:42:04 +08:00
return (-1);
Initial revision
1999-10-08 07:47:09 +08:00
}
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