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tcpdump/netdissect.h

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beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
/*
* Copyright (c) 1988-1997
* The Regents of the University of California. All rights reserved.
*
minor whitespace changes
2012-04-08 08:31:47 +08:00
* Copyright (c) 1998-2012 Michael Richardson <mcr@tcpdump.org>
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
* The TCPDUMP project
*
* 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 netdissect_h
#define netdissect_h
#ifdef HAVE_OS_PROTO_H
#include "os-proto.h"
#endif
#include <sys/types.h>
#ifndef HAVE___ATTRIBUTE__
#define __attribute__(x)
#endif
/* snprintf et al */
#include <stdarg.h>
NDOize AODV, IPv4 and SCTP decoders
2014-03-26 19:47:29 +08:00
#include "ip.h" /* struct ip for nextproto4_cksum() */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#if !defined(HAVE_SNPRINTF)
int snprintf (char *str, size_t sz, const char *format, ...)
Avoid some warnings from Sun C. Some versions of Sun C support __attribute__ but don't support the "unused" or "format" attributes - they don't fail, but they whine a lot. They also support the "noreturn" attribute, but don't allow it to be applied to function pointers, only to functions. Check whether they can be used without warnings, and use them only if they can.
2013-06-23 05:06:33 +08:00
#ifdef __ATTRIBUTE___FORMAT_OK
__attribute__((format (printf, 3, 4)))
#endif /* __ATTRIBUTE___FORMAT_OK */
;
#endif /* !defined(HAVE_SNPRINTF) */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#if !defined(HAVE_VSNPRINTF)
int vsnprintf (char *str, size_t sz, const char *format, va_list ap)
Avoid some warnings from Sun C. Some versions of Sun C support __attribute__ but don't support the "unused" or "format" attributes - they don't fail, but they whine a lot. They also support the "noreturn" attribute, but don't allow it to be applied to function pointers, only to functions. Check whether they can be used without warnings, and use them only if they can.
2013-06-23 05:06:33 +08:00
#ifdef __ATTRIBUTE___FORMAT_OK
__attribute__((format (printf, 3, 0)))
#endif /* __ATTRIBUTE___FORMAT_OK */
;
#endif /* !defined(HAVE_SNPRINTF) */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#ifndef HAVE_STRLCAT
extern size_t strlcat (char *, const char *, size_t);
#endif
#ifndef HAVE_STRLCPY
extern size_t strlcpy (char *, const char *, size_t);
#endif
#ifndef HAVE_STRDUP
extern char *strdup (const char *str);
#endif
The first argument to "ascii_print_with_offset()", "ascii_print()", "hex_print_with_offset()", and "hex_print()" is a string used as a tag; make it a "const char *", not a "const u_char *". Copy the declaration of "strsep()" from "interface.h" to "netdissect.h", and get rid of the include of "interface.h" from "print-esp.c", as it includes "netdissect.h". Update the "ND_TTEST2()" macro to do the same overflow checks that "TTEST2()" now does.
2004-07-22 06:00:10 +08:00
#ifndef HAVE_STRSEP
extern char *strsep(char **, const char *);
#endif
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
struct tok {
base struct tok on unsigned rather than signed int This resolves a few Solaris-specific warnings emitted by /opt/solarisstudio12.3/bin/cc like below: warning: initializer does not fit or is out of range: 0xffffffff (also happened for 0x80000000)
2014-02-26 18:49:56 +08:00
u_int v; /* value */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
const char *s; /* string */
};
base struct tok on unsigned rather than signed int This resolves a few Solaris-specific warnings emitted by /opt/solarisstudio12.3/bin/cc like below: warning: initializer does not fit or is out of range: 0xffffffff (also happened for 0x80000000)
2014-02-26 18:49:56 +08:00
extern const char *tok2strbuf(const struct tok *, const char *, u_int,
new tok2strbuf() API.
2004-04-29 10:15:41 +08:00
char *buf, size_t bufsize);
/* tok2str is deprecated */
Use unsigned values in tok2str and bittok2str routines. This prevents the compiler issue mentioned in GitHub issue #451, and also cleans up some other signed vs. unsigned stuff. While we're at it, clean up bittok2str_internal() (just pass it the separator string, not a Boolean value that's tested to choose the separator string), and print unknown arguments to the bittok2str routines in hex, not decimal.
2015-04-19 10:56:49 +08:00
extern const char *tok2str(const struct tok *, const char *, u_int);
extern char *bittok2str(const struct tok *, const char *, u_int);
extern char *bittok2str_nosep(const struct tok *, const char *, u_int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
typedef struct netdissect_options netdissect_options;
struct netdissect_options {
from Anantharamu Suryanarayana: add 4-byte AS support to the BGP printer
2009-01-21 04:40:22 +08:00
int ndo_bflag; /* print 4 byte ASes in ASDOT notation */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
int ndo_eflag; /* print ethernet header */
int ndo_fflag; /* don't translate "foreign" IP address */
From Ben Byer <bushing@sourceforge.net>: add a "-K" flag to suppress the checking of TCP checksums. Sort the argument processing code alphabetically.
2006-05-06 07:13:00 +08:00
int ndo_Kflag; /* don't check TCP checksums */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
int ndo_nflag; /* leave addresses as numbers */
int ndo_Nflag; /* remove domains from printed host names */
int ndo_qflag; /* quick (shorter) output */
int ndo_Rflag; /* print sequence # field in AH/ESP*/
int ndo_sflag; /* use the libsmi to translate OIDs */
int ndo_Sflag; /* print raw TCP sequence numbers */
int ndo_tflag; /* print packet arrival time */
int ndo_uflag; /* Print undecoded NFS handles */
int ndo_vflag; /* verbose */
int ndo_xflag; /* print packet in hex */
int ndo_Xflag; /* print packet in hex/ascii */
int ndo_Aflag; /* print packet only in ascii observing TAB,
* LF, CR and SPACE as graphical chars
*/
int ndo_dlt; /* if != -1, ask libpcap for the DLT it names*/
Use immediate mode if available. If libpcap has pcap_set_immediate_mode(), then default to immediate mode if we're printing packets to a terminal, and use immediate mode if --immediate-mode is specified.
2015-02-11 06:55:43 +08:00
int ndo_immediate; /* use immediate mode */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
Use "-H", not "-h", for the 802.11s option, and improve error reporting. I was rudely surprised to find that "tcpdump -h" wasn't printing a usage message, and I'm the person who *added* the "-h" option. Make it "-H", and add an explicit "-h" option to print a usage message, so nobody else makes the same mistake. Also, don't clear opterr, so that if you give an illegal command-line option, you get an explanatory error message.
2011-06-22 09:15:50 +08:00
int ndo_Hflag; /* dissect 802.11s draft mesh standard */
Print an optional packet number in the beginning of line The new option is '--number'.
2014-05-06 18:07:55 +08:00
int ndo_packet_number; /* print a packet number in the beginning of line */
Add a flag to suppress the "default_print()" call made in various link-layer print routines if no other print routine claimed the packet. Test whether that flag is set rather than testing whether neither of -x or -q were specified, and have -x, -q, *and* -X set that flag, so that -X suppresses it just as -x does. That way you don't get those pckets dumped twice if -X was specified.
2005-07-07 09:22:15 +08:00
int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */
Introduce --time-stamp-precision A while ago we introduced new API in libpcap which made possible to request time stamps with higher precision (nanoseconds). This commit aims to move things forward and implement missing bits. It introduces new long option --time-stamp-precision. Note that there is no equivalent short option. When used for a live capture tcpdump will ask the kernel for time stamp with desired precision and tcpdump will print fraction part of the time stamp using respective format. We currently support only microsecond and nanosecond precision. In the future we might support even more granular time stamp precision, but we should be fine to support only microseconds and nanoseconds for now. libpcap doesn't provide anything else at the moment anyway. When used in combination with -r/-w options then we obtain time stamps appropriately scaled up or down from libpcap. Also note that distinct magic number is used for savefiles containing nanosecond time stamps.
2014-03-19 21:14:25 +08:00
int ndo_tstamp_precision; /* requested time stamp precision */
Add "ndo_Uflag", as we #define Uflag to be gndo->ndo_Uflag in interface.h. Make "ndo_dltname" a const pointer, as we assign a const pointer value to it.
2004-04-02 14:52:06 +08:00
const char *ndo_dltname;
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
char *ndo_espsecret;
print-esp has been "NDO"-ized. replace error() and warning() with ndo-ized version. moved snaplen/snapend to ndo structure.
2004-04-05 08:15:50 +08:00
struct sa_list *ndo_sa_list_head; /* used by print-esp.c */
struct sa_list *ndo_sa_default;
add infrastructure for verifiying the HMAC-MD5 digest in routing protocols. The shared secret is passed using the already existing -M option which is used for TCP-MD5 checking. add initial supoort for RSVP Integrity object verification.
2008-08-16 19:36:20 +08:00
char *ndo_sigsecret; /* Signature verification secret key */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
struct esp_algorithm *ndo_espsecret_xform; /* cache of decoded */
char *ndo_espsecret_key;
int ndo_packettype; /* as specified by -T */
char *ndo_program_name; /*used to generate self-identifying messages */
int32_t ndo_thiszone; /* seconds offset from gmt to local time */
int ndo_snaplen;
/*global pointers to beginning and end of current packet (during printing) */
const u_char *ndo_packetp;
const u_char *ndo_snapend;
/* pointer to void function to output stuff */
void (*ndo_default_print)(netdissect_options *,
register const u_char *bp, register u_int length);
added some comments about ndo functions
2014-07-08 10:05:14 +08:00
/* pointer to function to do regular output */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
int (*ndo_printf)(netdissect_options *,
Add __attribute__((format)) to the declarations of the ndo_printf, ndo_error, and ndo_warning function pointers in a netdissect_options structure. Fix some errors adding that caught. Have the RRCP dissector extract fields itself, with the EXTRACT_ macros and a u_char pointer, rather than printing numbers from a structure which doesn't put structure members on natural boundaries (__attribute__((packed)) doesn't help, as not all compilers support it) - note also that not all processors support dereferencing unaligned pointers, e.g. SPARC - and assuming some fields are in the "right" byte order. Also have it check whether data is available in the packet before referring to it.
2009-05-25 05:06:10 +08:00
const char *fmt, ...)
Get rid of some autoconf macros not used, or no longer used, with tcpdump. Check whether __attribute__((format)) can be applied to function pointers and, if not, don't apply it to function pointers; some older versions of GCC appear to support applying it to functions, but not pointers to functions. As we've gotten rid of missing/getaddrinfo.c, don't use it.
2009-07-08 16:22:27 +08:00
#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
__attribute__ ((format (printf, 2, 3)))
#endif
;
added some comments about ndo functions
2014-07-08 10:05:14 +08:00
/* pointer to function to output errors */
print-esp has been "NDO"-ized. replace error() and warning() with ndo-ized version. moved snaplen/snapend to ndo structure.
2004-04-05 08:15:50 +08:00
void (*ndo_error)(netdissect_options *,
Add __attribute__((format)) to the declarations of the ndo_printf, ndo_error, and ndo_warning function pointers in a netdissect_options structure. Fix some errors adding that caught. Have the RRCP dissector extract fields itself, with the EXTRACT_ macros and a u_char pointer, rather than printing numbers from a structure which doesn't put structure members on natural boundaries (__attribute__((packed)) doesn't help, as not all compilers support it) - note also that not all processors support dereferencing unaligned pointers, e.g. SPARC - and assuming some fields are in the "right" byte order. Also have it check whether data is available in the packet before referring to it.
2009-05-25 05:06:10 +08:00
const char *fmt, ...)
Avoid some warnings from Sun C. Some versions of Sun C support __attribute__ but don't support the "unused" or "format" attributes - they don't fail, but they whine a lot. They also support the "noreturn" attribute, but don't allow it to be applied to function pointers, only to functions. Check whether they can be used without warnings, and use them only if they can.
2013-06-23 05:06:33 +08:00
#ifdef __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS
__attribute__ ((noreturn))
#endif /* __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS */
Get rid of some autoconf macros not used, or no longer used, with tcpdump. Check whether __attribute__((format)) can be applied to function pointers and, if not, don't apply it to function pointers; some older versions of GCC appear to support applying it to functions, but not pointers to functions. As we've gotten rid of missing/getaddrinfo.c, don't use it.
2009-07-08 16:22:27 +08:00
#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
Avoid some warnings from Sun C. Some versions of Sun C support __attribute__ but don't support the "unused" or "format" attributes - they don't fail, but they whine a lot. They also support the "noreturn" attribute, but don't allow it to be applied to function pointers, only to functions. Check whether they can be used without warnings, and use them only if they can.
2013-06-23 05:06:33 +08:00
__attribute__ ((format (printf, 2, 3)))
#endif /* __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS */
Get rid of some autoconf macros not used, or no longer used, with tcpdump. Check whether __attribute__((format)) can be applied to function pointers and, if not, don't apply it to function pointers; some older versions of GCC appear to support applying it to functions, but not pointers to functions. As we've gotten rid of missing/getaddrinfo.c, don't use it.
2009-07-08 16:22:27 +08:00
;
added some comments about ndo functions
2014-07-08 10:05:14 +08:00
/* pointer to function to output warnings */
print-esp has been "NDO"-ized. replace error() and warning() with ndo-ized version. moved snaplen/snapend to ndo structure.
2004-04-05 08:15:50 +08:00
void (*ndo_warning)(netdissect_options *,
Add __attribute__((format)) to the declarations of the ndo_printf, ndo_error, and ndo_warning function pointers in a netdissect_options structure. Fix some errors adding that caught. Have the RRCP dissector extract fields itself, with the EXTRACT_ macros and a u_char pointer, rather than printing numbers from a structure which doesn't put structure members on natural boundaries (__attribute__((packed)) doesn't help, as not all compilers support it) - note also that not all processors support dereferencing unaligned pointers, e.g. SPARC - and assuming some fields are in the "right" byte order. Also have it check whether data is available in the packet before referring to it.
2009-05-25 05:06:10 +08:00
const char *fmt, ...)
Get rid of some autoconf macros not used, or no longer used, with tcpdump. Check whether __attribute__((format)) can be applied to function pointers and, if not, don't apply it to function pointers; some older versions of GCC appear to support applying it to functions, but not pointers to functions. As we've gotten rid of missing/getaddrinfo.c, don't use it.
2009-07-08 16:22:27 +08:00
#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
__attribute__ ((format (printf, 2, 3)))
#endif
;
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
};
#define PT_VAT 1 /* Visual Audio Tool */
#define PT_WB 2 /* distributed White Board */
#define PT_RPC 3 /* Remote Procedure Call */
#define PT_RTP 4 /* Real-Time Applications protocol */
#define PT_RTCP 5 /* Real-Time Applications control protocol */
#define PT_SNMP 6 /* Simple Network Management Protocol */
#define PT_CNFP 7 /* Cisco NetFlow protocol */
Add "radius" as an option for -T. This allows tcpdump to handle RADIUS running on non-standard ports. Submitted-By: ssb@sourceforge.net Man page also updated by me.
2012-07-01 06:59:18 +08:00
#define PT_TFTP 8 /* trivial file transfer protocol */
#define PT_AODV 9 /* Ad-hoc On-demand Distance Vector Protocol */
fix some PT_* macros indentation with tabs
2013-02-09 16:08:34 +08:00
#define PT_CARP 10 /* Common Address Redundancy Protocol */
#define PT_RADIUS 11 /* RADIUS authentication Protocol */
ZeroMQ initial support (ZMTP/1.0 framing) This change adds support for ZMTP/1.0 (ZeroMQ Message Transport Protocol 1.0) framing in TCP packets, as defined in http://rfc.zeromq.org/spec:13 and implemented in zeromq library. Since there is no assigned port number for ZeroMQ, the user is left responsible for making only the related TCP packets captured and enforcing ZMTP/1.0 decoding through the "-T zmtp1" option. Each ZMTP/1.0 frame of a packet will produce a single additional line of output. The "-v" flag will add up to 8 lines (128 bytes) worth of hex+ASCII dump of the frame body, and "-vv" and higher will dump the full frame body, however long. Beware that this code handles neither IP fragmentation nor TCP segmentation and will incorrectly decode segments not starting at a frame boundary. The included sample capture stands for a short ZeroMQ session between a REQ/REP socket pair doing 3 anonymous 2-way exchanges. It was produced using version 2.1.9 of zeromq library patched to fix its bug #293, so that all MBZ bits of the flags field are set to 0.
2013-02-09 21:36:24 +08:00
#define PT_ZMTP1 12 /* ZeroMQ Message Transport Protocol 1.0 */
- Add support for OTV (draft-hasmit-otv-04). - Use the packettype infrastructure (-T vxlan) for VXLAN parsing (waiting for a well known dest port)
2013-02-26 20:44:11 +08:00
#define PT_VXLAN 13 /* Virtual eXtensible Local Area Network */
use existing PGM decoder for UDP-encapsulated PGM The original PGM uses its own IP protocol number. "EPGM" or "PGM/UDP" stands for UDP-encapsulated PGM, which has no assigned UDP port number and can be decoded only by means of -T option, which now accepts "pgm" protocol type for this purpose. There is also a sample capture of EPGM now (similar to the one of native PGM, but produced using the "epgm://" protocol schema) and a respective test case.
2013-03-15 01:17:53 +08:00
#define PT_PGM 14 /* [UDP-encapsulated] Pragmatic General Multicast */
improve ZeroMQ support (ZMTP/1.0 inside PGM/EPGM) This change adds new code to decode ZeroMQ datagrams, couples it with the PGM decoder and extends the -T option to make all this work. There are two new test cases based on existing captures of ZMTP/1.0 inside [E]PGM to decode the ZMTP/1.0 part of these. This functionality enables decoding of the traffic zeromq library produces for "pgm://" and "epgm://" protocol schemas.
2013-03-15 01:59:38 +08:00
#define PT_PGM_ZMTP1 15 /* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */
LMP: add -T override and fix version 1 test(s) The Link Management Protocol version 1 sample capture added to the tests directory in commit 212eef2 was produced using non-standard UDP port 49998. Later assignment of port 701 reflected in commit 960aee5 made it impossible to decode the capture. This change adds a -T override for LMP, uses it to replace the broken test with two working tests and dismisses the custom test script, lmp.sh.
2013-09-07 16:22:37 +08:00
#define PT_LMP 16 /* Link Management Protocol */
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#ifndef min
#define min(a,b) ((a)>(b)?(b):(a))
#endif
#ifndef max
#define max(a,b) ((b)>(a)?(b):(a))
#endif
/*
Make the default snapshot length the maximum; add a #define for the maximum. Get rid of redundant definition of DEFAULT_SNAPLEN in interface.h. Update the documentation.
2009-03-05 17:01:29 +08:00
* Maximum snapshot length. This should be enough to capture the full
* packet on most network interfaces.
*
Boost the maximum snapshot length to 262144, for USBPcap.
2014-06-26 04:41:22 +08:00
*
* Somewhat arbitrary, but chosen to be:
*
* 1) big enough for maximum-size Linux loopback packets (65549)
* and some USB packets captured with USBPcap:
*
* http://desowin.org/usbpcap/
*
* (> 131072, < 262144)
*
* and
*
* 2) small enough not to cause attempts to allocate huge amounts of
* memory; some applications might use the snapshot length in a
* savefile header to control the size of the buffer they allocate,
* so a size of, say, 2^31-1 might not work well.
Don't treat 65535 as the maximum snapshot length. Make it 131072, instead; the MTU on the Linux loopback interface, in at least some versions of the kernel, is 65536, and that doesn't count the fake Ethernet header, so we need a value bigger than 65536. We don't want a value that's *too* large, so that it causes attempts to allocate huge amounts of memory, however. This (plus the corresponding change to libpcap) should fix GitHub issue
2014-06-26 04:18:18 +08:00
*
* XXX - does it need to be bigger still?
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
*/
Boost the maximum snapshot length to 262144, for USBPcap.
2014-06-26 04:41:22 +08:00
#define MAXIMUM_SNAPLEN 262144
Make the default snapshot length the maximum; add a #define for the maximum. Get rid of redundant definition of DEFAULT_SNAPLEN in interface.h. Update the documentation.
2009-03-05 17:01:29 +08:00
/*
* The default snapshot length is the maximum.
*/
#define DEFAULT_SNAPLEN MAXIMUM_SNAPLEN
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#define ESRC(ep) ((ep)->ether_shost)
#define EDST(ep) ((ep)->ether_dhost)
#ifndef NTOHL
#define NTOHL(x) (x) = ntohl(x)
#define NTOHS(x) (x) = ntohs(x)
#define HTONL(x) (x) = htonl(x)
#define HTONS(x) (x) = htons(x)
#endif
The first argument to "ascii_print_with_offset()", "ascii_print()", "hex_print_with_offset()", and "hex_print()" is a string used as a tag; make it a "const char *", not a "const u_char *". Copy the declaration of "strsep()" from "interface.h" to "netdissect.h", and get rid of the include of "interface.h" from "print-esp.c", as it includes "netdissect.h". Update the "ND_TTEST2()" macro to do the same overflow checks that "TTEST2()" now does.
2004-07-22 06:00:10 +08:00
/*
* True if "l" bytes of "var" were captured.
*
* The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure
* "l" isn't so large that "ndo->ndo_snapend - (l)" underflows.
*
* The check is for <= rather than < because "l" might be 0.
C compilers can, and some do, optimize away pointer underflow checks. Cast the pointers to uintptr_t; use AC_TYPE_UINTPTR_T to get uintptr_t defined on older platforms that don't define it themselves.
2015-03-03 05:25:12 +08:00
*
* We cast the pointers to uintptr_t to make sure that the compiler
* doesn't optimize away any of these tests (which it is allowed to
* do, as adding an integer to, or subtracting an integer from, a
* pointer assumes that the pointer is a pointer to an element of an
* array and that the result of the addition or subtraction yields a
* pointer to another member of the array, so that, for example, if
* you subtract a positive integer from a pointer, the result is
* guaranteed to be less than the original pointer value). See
*
* http://www.kb.cert.org/vuls/id/162289
The first argument to "ascii_print_with_offset()", "ascii_print()", "hex_print_with_offset()", and "hex_print()" is a string used as a tag; make it a "const char *", not a "const u_char *". Copy the declaration of "strsep()" from "interface.h" to "netdissect.h", and get rid of the include of "interface.h" from "print-esp.c", as it includes "netdissect.h". Update the "ND_TTEST2()" macro to do the same overflow checks that "TTEST2()" now does.
2004-07-22 06:00:10 +08:00
*/
netdissect.h: Update ND_TTEST2 to fix issue 443 Add IS_NOT_NEGATIVE macro. Avoid these warnings: - comparison of unsigned expression >= 0 is always true [-Wtype-limits], - comparison is always true due to limited range of data type [-Wtype-limits].
2015-04-28 00:20:59 +08:00
netdissect.h: Add a comment on IS_NOT_NEGATIVE macro
2015-04-28 12:17:16 +08:00
/*
* Test in two parts to avoid these warnings:
* comparison of unsigned expression >= 0 is always true [-Wtype-limits],
* comparison is always true due to limited range of data type [-Wtype-limits].
*/
netdissect.h: Update ND_TTEST2 to fix issue 443 Add IS_NOT_NEGATIVE macro. Avoid these warnings: - comparison of unsigned expression >= 0 is always true [-Wtype-limits], - comparison is always true due to limited range of data type [-Wtype-limits].
2015-04-28 00:20:59 +08:00
#define IS_NOT_NEGATIVE(x) (((x) > 0) || ((x) == 0))
C compilers can, and some do, optimize away pointer underflow checks. Cast the pointers to uintptr_t; use AC_TYPE_UINTPTR_T to get uintptr_t defined on older platforms that don't define it themselves.
2015-03-03 05:25:12 +08:00
#define ND_TTEST2(var, l) \
netdissect.h: Update ND_TTEST2 to fix issue 443 Add IS_NOT_NEGATIVE macro. Avoid these warnings: - comparison of unsigned expression >= 0 is always true [-Wtype-limits], - comparison is always true due to limited range of data type [-Wtype-limits].
2015-04-28 00:20:59 +08:00
(IS_NOT_NEGATIVE(l) && \
C compilers can, and some do, optimize away pointer underflow checks. Cast the pointers to uintptr_t; use AC_TYPE_UINTPTR_T to get uintptr_t defined on older platforms that don't define it themselves.
2015-03-03 05:25:12 +08:00
((uintptr_t)ndo->ndo_snapend - (l) <= (uintptr_t)ndo->ndo_snapend && \
ND_TEST2 should validate that l is non-negative
2015-03-10 02:23:25 +08:00
(uintptr_t)&(var) <= (uintptr_t)ndo->ndo_snapend - (l)))
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
/* True if "var" was captured */
#define ND_TTEST(var) ND_TTEST2(var, sizeof(var))
/* Bail if "l" bytes of "var" were not captured */
#define ND_TCHECK2(var, l) if (!ND_TTEST2(var, l)) goto trunc
/* Bail if "var" was not captured */
#define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var))
do not use gcc-ism for macro, instead abuse C-syntax
2004-04-24 03:03:39 +08:00
#define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF
NDO-ized print-arp.c
2004-05-01 00:42:14 +08:00
#define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
NDOize some generic code
2014-04-03 21:40:30 +08:00
extern void ts_print(netdissect_options *, const struct timeval *);
extern void relts_print(netdissect_options *, int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
NDOize the rest of util.c
2014-04-14 14:53:46 +08:00
extern int fn_print(netdissect_options *, const u_char *, const u_char *);
extern int fn_printn(netdissect_options *, const u_char *, u_int, const u_char *);
extern int fn_printzp(netdissect_options *, const u_char *, u_int, const u_char *);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
More comments.
2014-10-20 04:46:22 +08:00
/*
* Flags for txtproto_print().
*/
#define RESP_CODE_SECOND_TOKEN 0x00000001 /* response code is second token in response line */
Add a routine to print "text protocols", and add FTP/HTTP/SMTP/RTSP support. "Text protocols" are protocols that have the general feel of FTP, with command lines with a command name and space-separated arguments and response lines beginning with a 3-digit reply code. They can also include HTTP-style headers and an entity body. We add support for the FTP control channel, HTTP, SMTP, and RTSP. We also change the SIP printer to use it.
2014-10-20 02:21:44 +08:00
extern void txtproto_print(netdissect_options *, const u_char *, u_int,
const char *, const char **, u_int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#if 0
extern char *read_infile(netdissect_options *, char *);
extern char *copy_argv(netdissect_options *, char **);
#endif
Do our own isascii(), isprint(), isgraph(), and toascii(). We do *not* want the behavior of isprint() and isgraph() to be locale-dependent - we want both of them to return "true" only for ASCII characters. We have to do our own isascii() and toascii() on non-UN*X systems anyway, so let's just do all of them ourselves.
2014-02-03 07:17:06 +08:00
/*
* Locale-independent macros for testing character properties and
* stripping the 8th bit from characters. Assumed to be handed
* a value between 0 and 255, i.e. don't hand them a char, as
* those might be in the range -128 to 127.
*/
#define ND_ISASCII(c) (!((c) & 0x80)) /* value is an ASCII code point */
#define ND_ISPRINT(c) ((c) >= 0x20 && (c) <= 0x7E)
#define ND_ISGRAPH(c) ((c) > 0x20 && (c) <= 0x7E)
#define ND_TOASCII(c) ((c) & 0x7F)
NDOize safeputs() and safeputchar()
2014-04-01 21:29:55 +08:00
extern void safeputchar(netdissect_options *, const u_char);
extern void safeputs(netdissect_options *, const u_char *, const u_int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
Only do the unaligned_mem{cpy,cmp} hack if necessary. If the processor does unaligned accesses, it's not necessary.
2014-01-18 09:51:04 +08:00
#ifdef LBL_ALIGN
/*
* The processor doesn't natively handle unaligned loads,
* and the compiler might "helpfully" optimize memcpy()
* and memcmp(), when handed pointers that would normally
* be properly aligned, into sequences that assume proper
* alignment.
*
* Do copies and compares of possibly-unaligned data by
* calling routines that wrap memcpy() and memcmp(), to
* prevent that optimization.
*/
Move safememcpy() to util.c so it doesn't get inlined. It appears that some C compilers will inline safememcpy() *and* will, as a result, optimize to assume alignment it if it's passed a putatively-aligned pointer. As the pointers in question are not guaranteed to be aligned, that can cause crashes on, for example, SPARC. Also, rename the function to unaligned_memcpy(), to clarify what's "safe" about it, and change some direct memcpy() calls to use it as well.
2014-01-16 10:12:06 +08:00
extern void unaligned_memcpy(void *, const void *, size_t);
memcmp() doesn't modify either of its arguments.
2014-01-16 15:03:31 +08:00
extern int unaligned_memcmp(const void *, const void *, size_t);
Only do the unaligned_mem{cpy,cmp} hack if necessary. If the processor does unaligned accesses, it's not necessary.
2014-01-18 09:51:04 +08:00
#define UNALIGNED_MEMCPY(p, q, l) unaligned_memcpy((p), (q), (l))
#define UNALIGNED_MEMCMP(p, q, l) unaligned_memcmp((p), (q), (l))
#else
/*
* The procesor natively handles unaligned loads, so just use memcpy()
* and memcmp(), to enable those optimizations.
*/
#define UNALIGNED_MEMCPY(p, q, l) memcpy((p), (q), (l))
#define UNALIGNED_MEMCMP(p, q, l) memcmp((p), (q), (l))
#endif
Move safememcpy() to util.c so it doesn't get inlined. It appears that some C compilers will inline safememcpy() *and* will, as a result, optimize to assume alignment it if it's passed a putatively-aligned pointer. As the pointers in question are not guaranteed to be aligned, that can cause crashes on, for example, SPARC. Also, rename the function to unaligned_memcpy(), to clarify what's "safe" about it, and change some direct memcpy() calls to use it as well.
2014-01-16 10:12:06 +08:00
Fix plurals in packet count messages. Based on a patch from cr4ckn@sourceforge.net, but with a macro PLURAL_SUFFIX() defined to return either "s" or "" (rather than possibly printing a NUL character with %c), and with that macro used in a couple of cases where the equivalent had been done by hand, and with one case the patch missed fixed as well.
2011-03-09 01:11:25 +08:00
#define PLURAL_SUFFIX(n) \
(((n) != 1) ? "s" : "")
Move some prototypes in netdissect.h
2015-06-11 02:39:54 +08:00
extern const char *dnname_string(u_short);
extern const char *dnnum_string(u_short);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
Move more prototypes in netdissect.h
2015-06-11 03:12:38 +08:00
extern int mask2plen(uint32_t);
extern const char *tok2strary_internal(const char **, int, const char *, int);
#define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i)
#ifdef INET6
extern int mask62plen(const u_char *);
#endif /*INET6*/
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
/* The printer routines. */
#include <pcap.h>
Clean up bounds checking. Fix link-layer header length for Cisco-style encapsulation while we're at it.
2014-12-20 04:12:54 +08:00
extern char *q922_string(netdissect_options *ndo, const u_char *, u_int);
Get rid of support for non-NDOified printers. Remove the TTEST{2}/TCHECK{2} macros. Rename all "ndo_printer" routines, structures, and structure members to just "printer", and get rid of the old routines/structures/structure members with those names.
2015-03-11 04:25:52 +08:00
typedef u_int (*if_printer)(struct netdissect_options *ndo,
Don't use "struct netdissect_options" in interface.h. Use it in netdissect.h, where it's defined; otherwise, we get a bunch of warnings when compiling modules that include interface.h but don't yet include netdissect.h.
2011-05-05 17:25:42 +08:00
const struct pcap_pkthdr *, const u_char *);
extern if_printer lookup_printer(int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
From Andrew Silent: Realtek Remote Control Protocol support (see OpenRRCP.org.ru for details).
2008-02-06 18:47:53 +08:00
extern void eap_print(netdissect_options *,const u_char *, u_int);
print-esp has been "NDO"-ized. replace error() and warning() with ndo-ized version. moved snaplen/snapend to ndo structure.
2004-04-05 08:15:50 +08:00
extern int esp_print(netdissect_options *,
justify more function declarations
2014-01-14 23:56:13 +08:00
const u_char *bp, const int length, const u_char *bp2,
print-esp has been "NDO"-ized. replace error() and warning() with ndo-ized version. moved snaplen/snapend to ndo structure.
2004-04-05 08:15:50 +08:00
int *nhdr, int *padlen);
NDO-ized print-arp.c
2004-05-01 00:42:14 +08:00
extern void arp_print(netdissect_options *,const u_char *, u_int, u_int);
Add support for the Marvell Extended Distributed Switch Architecture header This header can be used with Marvell switches to direct packets in/out of a specific port in a tree of interconnected switches. The header uses its own Ethertype of 0xdada. By default, only brief output is printed, showing the switch device, port, and vlan the packet is to/from. However if -e is given, to print the link-level header, all fields are printed.
2015-04-20 04:35:00 +08:00
extern void medsa_print(netdissect_options *, const u_char *, u_int, u_int);
TIPC support. Reviewed-and-much-modified-by: Guy Harris <guy@alum.mit.edu>
2012-02-29 12:36:55 +08:00
extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int);
fix function 'msnlb_print', unused parameter 'length'
2013-03-16 00:19:26 +08:00
extern void msnlb_print(netdissect_options *, const u_char *);
Include "netdissect.h" in print-ip6.c, and move icmp6_print's declaration out from inside #if 0/#endif, to get it declared in print-ip6.c.
2009-11-27 07:07:47 +08:00
extern void icmp6_print(netdissect_options *ndo, const u_char *,
u_int, const u_char *, int);
added ESP-in-UDP printer from RFC3948.
2005-04-07 05:33:27 +08:00
extern void isakmp_print(netdissect_options *,const u_char *,
u_int, const u_char *);
extern void isakmp_rfc3948_print(netdissect_options *,const u_char *,
u_int, const u_char *);
extern void ip_print(netdissect_options *,const u_char *, u_int);
use new ip_print_demux() routine in ISAKMP UDP-ESP encap printer.
2005-04-07 08:28:17 +08:00
extern void ip_print_inner(netdissect_options *ndo,
const u_char *bp, u_int length, u_int nh,
const u_char *bp2);
From Andrew Silent: Realtek Remote Control Protocol support (see OpenRRCP.org.ru for details).
2008-02-06 18:47:53 +08:00
extern void rrcp_print(netdissect_options *,const u_char *, u_int);
justify declaration of loopback_print() This fixes a MSVC warning Gisle Vanem reports.
2014-01-14 22:06:13 +08:00
extern void loopback_print(netdissect_options *, const u_char *, const u_int);
CARP: NDOize
2014-02-25 22:23:45 +08:00
extern void carp_print(netdissect_options *, const u_char *, u_int, int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
Skip the LLC and SNAP headers with -x. Have llc_print() return the length of the LLC header, plus the length of the SNAP header, if available - or, if it couldn't dissect the payload, return the *negative* of that sum. Use that return value in link-layer printers.
2015-04-18 14:42:22 +08:00
extern u_int ether_print(netdissect_options *,
const u_char *, u_int, u_int,
void (*)(netdissect_options *, const u_char *),
const u_char *);
reworked print-ether to use netdissect
2010-10-08 02:36:49 +08:00
minor whitespace changes
2012-04-08 08:31:47 +08:00
extern u_int ether_if_print(netdissect_options *,
Add printers for the Hilscher Ethernet link-layer types.
2011-09-16 03:56:17 +08:00
const struct pcap_pkthdr *,const u_char *);
minor whitespace changes
2012-04-08 08:31:47 +08:00
extern u_int netanalyzer_if_print(netdissect_options *,
Change name of Hilscher link types to say NETANALYER. That makes the names a bit shorter, and mentions the specific Hilscher product to which they apply.
2011-09-16 08:39:56 +08:00
const struct pcap_pkthdr *,const u_char *);
minor whitespace changes
2012-04-08 08:31:47 +08:00
extern u_int netanalyzer_transparent_if_print(netdissect_options *,
Change name of Hilscher link types to say NETANALYER. That makes the names a bit shorter, and mentions the specific Hilscher product to which they apply.
2011-09-16 08:39:56 +08:00
const struct pcap_pkthdr *,
const u_char *);
reworked print-ether to use netdissect
2010-10-08 02:36:49 +08:00
extern int ethertype_print(netdissect_options *,u_short, const u_char *,
u_int, u_int);
ndo-ize print-ascii: hex_print_with_offset()
2014-01-02 09:43:45 +08:00
extern int print_unknown_data(netdissect_options *,const u_char *, const char *,int);
improve previous NDO conversions
2014-04-03 20:02:07 +08:00
extern void ascii_print(netdissect_options *, const u_char *, u_int);
ndo-ize print-ascii: hex_print_with_offset()
2014-01-02 09:43:45 +08:00
extern void hex_print_with_offset(netdissect_options *, const char *ident, const u_char *cp,
u_int, u_int);
extern void hex_print(netdissect_options *,const char *ident, const u_char *cp,u_int);
NDOize print-ascii.c further Introduce netdissect_options into hex_and_ascii_print_with_offset(), hex_and_ascii_print() and related functions.
2014-03-13 15:06:15 +08:00
extern void hex_and_ascii_print_with_offset(netdissect_options *, const char *, const u_char *, u_int, u_int);
extern void hex_and_ascii_print(netdissect_options *, const char *, const u_char *, u_int);
NDOize AH, BEEP and DTP decoders Also remove some unnecessary passages.
2014-02-27 19:13:43 +08:00
extern int ah_print(netdissect_options *, register const u_char *);
extern void beep_print(netdissect_options *, const u_char *, u_int);
extern void dtp_print(netdissect_options *, const u_char *, u_int);
NDOize CIP, IPComp and IPFC decoders Also remove some unneeded includes while at it.
2014-02-28 17:42:37 +08:00
extern u_int cip_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern int ipcomp_print(netdissect_options *, register const u_char *, int *);
extern u_int ipfc_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
NDOize HSRP, IGRP and UDLD decoders
2014-03-04 17:55:24 +08:00
extern void udld_print(netdissect_options *, const u_char *, u_int);
extern void hsrp_print(netdissect_options *, const u_char *, u_int);
extern void igrp_print(netdissect_options *, const u_char *, u_int);
NDOize IP mobile, MSDP and NULL decoders
2014-03-07 00:41:44 +08:00
extern void msdp_print(netdissect_options *, const u_char *, u_int);
extern u_int null_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void mobile_print(netdissect_options *, const u_char *, u_int);
NDOize 5 more decoders Update Apple's IP over IEEE1394, Bluetooth, CALM/FAST, IPv6 fragments and LAN emulation decoders. Remove some stray passages while at it.
2014-03-07 21:52:45 +08:00
extern u_int ap1394_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int bt_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void lane_print(netdissect_options *, const u_char *, u_int, u_int);
extern u_int lane_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
NDOize AHCP, OTV and VXLAN decoders
2014-03-08 19:28:13 +08:00
extern void otv_print(netdissect_options *, const u_char *, u_int);
extern void ahcp_print(netdissect_options *, const u_char *, const u_int);
extern void vxlan_print(netdissect_options *, const u_char *, u_int);
NDOize ARCNET, BFD and GRE decoders
2014-03-11 20:08:24 +08:00
extern u_int arcnet_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int arcnet_linux_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void bfd_print(netdissect_options *, const u_char *, u_int, u_int);
extern void gre_print(netdissect_options *, const u_char *, u_int);
VJC: NDOize
2014-03-12 17:06:10 +08:00
extern int vjc_print(netdissect_options *, register const char *, u_short);
NDOize more small decoders This change converts decoders for: DLT_RAW, IPv6 routing header, USB, Symantec firewall and cHDLC.
2014-03-13 00:02:32 +08:00
extern void ipN_print(netdissect_options *, const u_char *, u_int);
extern u_int raw_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int usb_linux_48_byte_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int usb_linux_64_byte_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int symantec_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int chdlc_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int chdlc_print(netdissect_options *, register const u_char *, u_int);
NDOize 8 more small decoders This change converts ZeroMQ, IPX, MPLS, IPv6 options, PPPoE, RIPng, PFLOG and Sun RPC decoders.
2014-03-13 21:21:55 +08:00
extern void zmtp1_print(netdissect_options *, const u_char *, u_int);
extern void zmtp1_print_datagram(netdissect_options *, const u_char *, const u_int);
extern void ipx_print(netdissect_options *, const u_char *, u_int);
extern void mpls_print(netdissect_options *, const u_char *, u_int);
extern u_int pppoe_print(netdissect_options *, const u_char *, u_int);
extern u_int pppoe_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void sunrpcrequest_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern u_int pflog_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
NDOize FDDI, MPCP, Token Ring, VQP and Zephyr decoders
2014-03-14 20:10:54 +08:00
extern u_int token_print(netdissect_options *, const u_char *, u_int, u_int);
extern u_int token_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void vqp_print(netdissect_options *, register const u_char *, register u_int);
extern void zephyr_print(netdissect_options *, const u_char *, int);
Skip the LLC and SNAP headers with -x. Have llc_print() return the length of the LLC header, plus the length of the SNAP header, if available - or, if it couldn't dissect the payload, return the *negative* of that sum. Use that return value in link-layer printers.
2015-04-18 14:42:22 +08:00
extern u_int fddi_print(netdissect_options *, const u_char *, u_int, u_int);
NDOize FDDI, MPCP, Token Ring, VQP and Zephyr decoders
2014-03-14 20:10:54 +08:00
extern u_int fddi_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void mpcp_print(netdissect_options *, const u_char *, u_int);
NDOize DCCP, Linux socket and RPKI-Router decoders
2014-03-15 00:05:27 +08:00
extern void rpki_rtr_print(netdissect_options *, const u_char *, u_int);
extern u_int sll_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void dccp_print(netdissect_options *, const u_char *, const u_char *, u_int);
Clean up printing of LLC packets. Don't print LLC header information for SNAP packets; if we have a SNAP header, just call snap_print() and return its return value, regardless of whether it's 1 or 0, don't fall into the code to print raw LLC header information - and don't print it with -e, either. If llc_print() returns 0, just call the default packet printer, don't print the MAC-layer header or the extracted ethertype - llc_print() will print the source and destination MAC addresses and whatever type information is in the LLC or SNAP headers. If we don't know the DSAP/LSAP, and it's an information frame (numbered or not) and not an XID frame, return 0, so that we give a hex dump of the raw payload. In addition, print the length when printing SNAP header information with -e.
2015-04-18 09:38:46 +08:00
extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const u_char *, const u_char *);
extern int snap_print(netdissect_options *, const u_char *, u_int, u_int,
const u_char *, const u_char *, u_int);
NDOize EIGRP, ICMP, L2TP, STP and UDP decoders
2014-03-16 03:25:06 +08:00
extern void eigrp_print(netdissect_options *, const u_char *, u_int);
extern void stp_print(netdissect_options *, const u_char *, u_int);
extern void l2tp_print(netdissect_options *, const u_char *, u_int);
extern void udp_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
extern void icmp_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
NDOize OpenFlow, IEEE slow and telnet decoders
2014-03-17 23:17:57 +08:00
extern void openflow_print(netdissect_options *, const u_char *, const u_int);
extern void telnet_print(netdissect_options *, const u_char *, u_int);
extern void slow_print(netdissect_options *, const u_char *, u_int);
NDOize Frame Relay, LMP and RADIUS decoders
2014-03-18 20:09:00 +08:00
extern void radius_print(netdissect_options *, const u_char *, u_int);
extern void lmp_print(netdissect_options *, const u_char *, u_int);
extern u_int fr_print(netdissect_options *, register const u_char *, u_int);
extern u_int mfr_print(netdissect_options *, register const u_char *, u_int);
extern u_int fr_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int mfr_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void q933_print(netdissect_options *, const u_char *, u_int);
NDOize 7 bigger decoders This change converts IGMP, IPv6 mobility options, LDP, Lightweight Access Point, PGM, PPTP and RIP decoders.
2014-03-19 17:57:56 +08:00
extern void igmp_print(netdissect_options *, const u_char *, u_int);
extern void rip_print(netdissect_options *, const u_char *, u_int);
extern void lwapp_control_print(netdissect_options *, const u_char *, u_int, int);
extern void lwapp_data_print(netdissect_options *, const u_char *, u_int);
extern void pgm_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern void pptp_print(netdissect_options *, const u_char *);
extern void ldp_print(netdissect_options *, const u_char *, u_int);
NDOize ATM, MPTCP, NTP, VTP & Whiteboard decoders
2014-03-20 18:39:44 +08:00
extern void wb_print(netdissect_options *, const void *, u_int);
extern int oam_print(netdissect_options *, const u_char *, u_int, u_int);
extern void atm_print(netdissect_options *, u_int, u_int, u_int, const u_char *, u_int, u_int);
extern u_int sunatm_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int atm_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void vtp_print(netdissect_options *, const u_char *, u_int);
extern int mptcp_print(netdissect_options *, const u_char *, u_int, u_char);
extern void ntp_print(netdissect_options *, const u_char *, u_int);
Use ND_TCHECK() to do bounds checking. While we're at it, just use the record count to when iterating over records; the ND_TCHECK()s will make sure we don't run past the end of the captured data. Also get rid of an unused argument to cnfp_print().
2014-11-10 15:24:53 +08:00
extern void cnfp_print(netdissect_options *, const u_char *);
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
extern void dvmrp_print(netdissect_options *, const u_char *, u_int);
extern void egp_print(netdissect_options *, const u_char *, u_int);
extern u_int enc_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int sl_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int sl_bsdos_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void tftp_print(netdissect_options *, const u_char *, u_int);
NDOize VRRP decoder
2014-03-23 14:28:40 +08:00
extern void vrrp_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
NDOize BOOTP, DHCPv6, DNS, PIM and sFlow decoders Also add/remove tabs in a few involved functions to justify indentation.
2014-03-25 19:05:59 +08:00
extern void pimv1_print(netdissect_options *, const u_char *, u_int);
extern void cisco_autorp_print(netdissect_options *, const u_char *, u_int);
Fix checksumming of PIMv2 Register messages. The checksum only covers the header, not the encapsulated packet, so only checksum that. However, if that checksum fails, try checksumming the entire packet, as, according to RFC 4601, packets with the entire packet checksummed should also be accepted, for interoperability.
2015-05-03 01:15:42 +08:00
extern void pim_print(netdissect_options *, const u_char *, u_int, const u_char *);
NDOize BOOTP, DHCPv6, DNS, PIM and sFlow decoders Also add/remove tabs in a few involved functions to justify indentation.
2014-03-25 19:05:59 +08:00
extern const u_char * ns_nprint (netdissect_options *, register const u_char *, register const u_char *);
extern void ns_print(netdissect_options *, const u_char *, u_int, int);
extern void bootp_print(netdissect_options *, const u_char *, u_int);
extern void sflow_print(netdissect_options *, const u_char *, u_int);
NDOize AODV, IPv4 and SCTP decoders
2014-03-26 19:47:29 +08:00
extern void aodv_print(netdissect_options *, const u_char *, u_int, int);
extern void sctp_print(netdissect_options *, const u_char *, const u_char *, u_int);
NDOize BGP decoder
2014-03-26 23:50:33 +08:00
extern char *bgp_vpn_rd_print (netdissect_options *, const u_char *);
extern void bgp_print(netdissect_options *, const u_char *, int);
NDOize ForCES, MPLS LSP ping and OLSR decoders
2014-03-27 18:58:23 +08:00
extern void olsr_print(netdissect_options *, const u_char *, u_int, int);
extern void forces_print(netdissect_options *, const u_char *, u_int);
extern void lspping_print(netdissect_options *, const u_char *, u_int);
NDOize ISO CLNS decoder
2014-03-28 18:08:48 +08:00
extern void isoclns_print(netdissect_options *, const u_char *, u_int, u_int);
NDOize AppleTalk, CDP and Kerberos decoders
2014-03-28 18:43:43 +08:00
extern void krb_print(netdissect_options *, const u_char *);
extern void cdp_print(netdissect_options *, const u_char *, u_int, u_int);
extern void atalk_print(netdissect_options *, const u_char *, u_int);
extern u_int ltalk_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int llap_print(netdissect_options *, const u_char *, u_int);
extern void aarp_print(netdissect_options *, const u_char *, u_int);
NDOize Juniper DLT decoders
2014-03-29 13:25:40 +08:00
extern u_int juniper_atm1_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_atm2_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_mfr_print(netdissect_options *, const struct pcap_pkthdr *, register const u_char *);
extern u_int juniper_mlfr_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_mlppp_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_pppoe_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_pppoe_atm_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_ggsn_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_es_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_monitor_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_services_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_ether_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_ppp_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_frelay_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int juniper_chdlc_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
NDOize SNMP decoder
2014-03-29 19:39:31 +08:00
extern void snmp_print(netdissect_options *, const u_char *, u_int);
Fix a bunch of de-constifications.
2015-04-27 08:24:42 +08:00
extern void rx_print(netdissect_options *, register const u_char *, int, int, int, const u_char *);
NDOize NFS decoder
2014-04-01 20:05:33 +08:00
extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern void nfsreply_print_noaddr(netdissect_options *, const u_char *, u_int, const u_char *);
extern void nfsreq_print_noaddr(netdissect_options *, const u_char *, u_int, const u_char *);
NDOize EAP, IEEE CFM, lwres, SIP & Syslog decoders
2014-04-01 23:42:33 +08:00
extern void sip_print(netdissect_options *, const u_char *, u_int);
extern void syslog_print(netdissect_options *, const u_char *, u_int);
extern void lwres_print(netdissect_options *, const u_char *, u_int);
extern void cfm_print(netdissect_options *, const u_char *, u_int);
NDOize SMB decoder
2014-04-02 12:14:19 +08:00
extern void nbt_tcp_print(netdissect_options *, const u_char *, int);
extern void nbt_udp137_print(netdissect_options *, const u_char *, int);
extern void nbt_udp138_print(netdissect_options *, const u_char *, int);
extern void smb_tcp_print(netdissect_options *, const u_char *, int);
extern void netbeui_print(netdissect_options *, u_short, const u_char *, int);
extern void ipx_netbios_print(netdissect_options *, const u_char *, u_int);
extern void print_data(netdissect_options *, const unsigned char *, int);
NDOize DECnet, OSPF and TCP decoders
2014-04-02 16:59:56 +08:00
extern void decnet_print(netdissect_options *, const u_char *, u_int, u_int);
extern void tcp_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
extern void ospf_print(netdissect_options *, const u_char *, u_int, const u_char *);
More getting rid of old u_intN_t.
2014-04-23 15:45:13 +08:00
extern int ospf_print_te_lsa(netdissect_options *, const uint8_t *, u_int);
extern int ospf_print_grace_lsa(netdissect_options *, const uint8_t *, u_int);
NDOize LLDP, PPP and RSVP decoders
2014-04-02 20:39:18 +08:00
extern u_int ppp_print(netdissect_options *, register const u_char *, u_int);
extern u_int ppp_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int ppp_hdlc_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int ppp_bsdos_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void lldp_print(netdissect_options *, const u_char *, u_int);
extern void rsvp_print(netdissect_options *, const u_char *, u_int);
NDOize timed decoder
2014-04-03 19:37:46 +08:00
extern void timed_print(netdissect_options *, const u_char *);
M3UA: improve code style Merge m3ua.h into the only file that includes it (print-m3ua.c). Make M3UA functions follow naming pattern, constify some of their arguments and switch to ND_PRINT(). Make use of tok2str() and ternary conditional. Eliminate declarations in the middle of code (C89).
2014-04-21 19:07:15 +08:00
extern void m3ua_print(netdissect_options *, const u_char *, const u_int);
AoE: add version 1 decoder (GH #298) The sample capture was produced with two Linux hosts (aoetools version 36, kernel module version 85, vblade version 21). One of the hosts exported a 1MB block device containing a freshly created filesystem and the other mounted it, wrote a small file and then unmounted.
2014-05-05 00:48:03 +08:00
extern void aoe_print(netdissect_options *, const u_char *, const u_int);
Add a routine to print "text protocols", and add FTP/HTTP/SMTP/RTSP support. "Text protocols" are protocols that have the general feel of FTP, with command lines with a command name and space-separated arguments and response lines beginning with a 3-digit reply code. They can also include HTTP-style headers and an entity body. We add support for the FTP control channel, HTTP, SMTP, and RTSP. We also change the SIP printer to use it.
2014-10-20 02:21:44 +08:00
extern void ftp_print(netdissect_options *, const u_char *, u_int);
extern void http_print(netdissect_options *, const u_char *, u_int);
extern void rtsp_print(netdissect_options *, const u_char *, u_int);
extern void smtp_print(netdissect_options *, const u_char *, u_int);
Add support for Generic Network Virtualization Encapsulation (Geneve). Defined in http://tools.ietf.org/html/draft-gross-geneve-02
2014-11-05 10:47:24 +08:00
extern void geneve_print(netdissect_options *, const u_char *, u_int);
ndo-ize print-ascii: hex_print_with_offset()
2014-01-02 09:43:45 +08:00
use new ip_print_demux() routine in ISAKMP UDP-ESP encap printer.
2005-04-07 08:28:17 +08:00
/* stuff that has not yet been rototiled */
added ns_nprint() to ndo-only definitions
2014-01-03 10:32:00 +08:00
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#if 0
Have "ascii_print()" do the "-A" output, and nothing but the "-A" output. Have "hex_and_ascii_print_with_offset()" and "hex_and_ascii_print()" to the "-X"-style offset, leaving "hex_print_with_offset()" and "hex_print()" doing the "-x"-style output. Don't have any of them check "xflag", "Xflag", or "Aflag" - they print what they're intended to print, and the caller should check the flags in question. Don't have "-A" set "xflag" or "Xflag". This cleans up some problems with "-A" printing hex informatioin - it's not supposed to.
2005-07-07 04:53:30 +08:00
extern void ascii_print(netdissect_options *,u_int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
extern void default_print(netdissect_options *,const u_char *, u_int);
netdissect.h did not actually declare ipnet_if_print, make it visible
2009-11-25 10:38:56 +08:00
#endif
Move some prototypes in netdissect.h
2015-06-11 02:39:54 +08:00
extern char *smb_errstr(int, int);
extern const char *nt_errstr(uint32_t);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
updated print-ipnet.c to use netdissect options structure
2009-11-25 10:31:04 +08:00
extern u_int ipnet_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
From: Darren Reed <darren.reed@oracle.com> To: tcpdump-workers@lists.tcpdump.org Date: Sat, 09 Apr 2011 12:51:14 +1000 Subject: [tcpdump-workers] Printing PPI packets Printing PPI packets with tcpdump does not turn out to be that hard. My simple tests have produced the output as below. It would be worthwhile having some changes made into the tcpdump code base that were similar to the attached that print them out.
2011-05-04 06:58:32 +08:00
extern u_int ppi_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
Added IP information printing from NFLOG packet
2013-05-31 18:16:13 +08:00
extern u_int nflog_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
moved ieee802.15.4 to NDO system
2010-05-14 02:30:59 +08:00
extern u_int ieee802_15_4_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
Add support for Apple's DLT_PKTAP.
2014-03-31 04:29:51 +08:00
extern u_int pktap_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
NDOize IEEE 802.11 decoder
2014-03-31 20:46:12 +08:00
extern u_int ieee802_11_radio_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int ieee802_11_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int ieee802_11_radio_avs_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int prism_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
updated print-ipnet.c to use netdissect options structure
2009-11-25 10:31:04 +08:00
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
extern void ip6_print(netdissect_options *,const u_char *, u_int);
Leave it up to ip6_print() to handle non-IPv6-capable systems. Always define and declare ip6_print(), always compile print-ip6.c, and always call it if we recognize a payload as IPv6. If INET6 isn't defined, ip6_print() will just print the length and note that printing isn't supported. That way, we don't do weird dissection of IPv6 packets on systems without IPv6 support, due to, for example, ethertype_print() returning 0 ("not dissected") for IPv6 packets on those systems (IPv6-over-Frame Relay was dissected weirdly due to this).
2014-10-02 06:32:11 +08:00
#ifdef INET6
NDOize 5 more decoders Update Apple's IP over IEEE1394, Bluetooth, CALM/FAST, IPv6 fragments and LAN emulation decoders. Remove some stray passages while at it.
2014-03-07 21:52:45 +08:00
extern int frag6_print(netdissect_options *, const u_char *, const u_char *);
NDOize more small decoders This change converts decoders for: DLT_RAW, IPv6 routing header, USB, Symantec firewall and cHDLC.
2014-03-13 00:02:32 +08:00
extern int rt6_print(netdissect_options *, const u_char *, const u_char *);
NDOize 8 more small decoders This change converts ZeroMQ, IPX, MPLS, IPv6 options, PPPoE, RIPng, PFLOG and Sun RPC decoders.
2014-03-13 21:21:55 +08:00
extern int hbhopt_print(netdissect_options *, const u_char *);
extern int dstopt_print(netdissect_options *, const u_char *);
extern void ripng_print(netdissect_options *, const u_char *, unsigned int);
NDOize 7 bigger decoders This change converts IGMP, IPv6 mobility options, LDP, Lightweight Access Point, PGM, PPTP and RIP decoders.
2014-03-19 17:57:56 +08:00
extern int mobility_print(netdissect_options *, const u_char *, const u_char *);
NDOize BOOTP, DHCPv6, DNS, PIM and sFlow decoders Also add/remove tabs in a few involved functions to justify indentation.
2014-03-25 19:05:59 +08:00
extern void dhcp6_print(netdissect_options *, const u_char *, u_int);
NDOize OSPFv3 decoder
2014-03-27 14:21:14 +08:00
extern void ospf6_print(netdissect_options *, const u_char *, u_int);
NDOize Babel decoder
2014-04-03 16:33:53 +08:00
extern void babel_print(netdissect_options *, const u_char *, u_int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#endif /*INET6*/
Convert the IPv6 printer to use netdissect.
2010-11-08 04:50:16 +08:00
Checksum stuff must go in netdissect.h (remainder)
2015-06-10 22:17:27 +08:00
/* checksum routines */
extern void init_checksum(void);
extern uint16_t verify_crc10_cksum(uint16_t, const u_char *, int);
extern uint16_t create_osi_cksum(const uint8_t *, int, int);
Go with Wireshark's Internet checksum routine. The Wireshark routine is based on the BSD in-kernel portable checksum routine (thus BSD-licensed); it takes a vector of pointers and lengths and checksums the concatenation of the buffers in question (just as the BSD in-kernel routine checksums a chain of mbufs). This simplifies the "with a pseudo-header" checksums; hopefully it'll fix up the problems being seen on some big-endian platforms, which might be due to hand-calculating some or all of the checksum and doing so incorrectly. It also gets rid of some code that might be dereferencing unaligned pointers.
2011-06-14 05:08:51 +08:00
struct cksum_vec {
More getting rid of old u_intN_t.
2014-04-23 15:45:13 +08:00
const uint8_t *ptr;
Go with Wireshark's Internet checksum routine. The Wireshark routine is based on the BSD in-kernel portable checksum routine (thus BSD-licensed); it takes a vector of pointers and lengths and checksums the concatenation of the buffers in question (just as the BSD in-kernel routine checksums a chain of mbufs). This simplifies the "with a pseudo-header" checksums; hopefully it'll fix up the problems being seen on some big-endian platforms, which might be due to hand-calculating some or all of the checksum and doing so incorrectly. It also gets rid of some code that might be dereferencing unaligned pointers.
2011-06-14 05:08:51 +08:00
int len;
};
More getting rid of old u_intN_t.
2014-04-23 15:45:13 +08:00
extern uint16_t in_cksum(const struct cksum_vec *, int);
extern uint16_t in_cksum_shouldbe(uint16_t, uint16_t);
Checksum stuff must go in netdissect.h
2015-06-10 21:47:54 +08:00
More getting rid of old u_intN_t.
2014-04-23 15:45:13 +08:00
extern int nextproto4_cksum(netdissect_options *ndo, const struct ip *, const uint8_t *, u_int, u_int, u_int);
NDOize BGP decoder
2014-03-26 23:50:33 +08:00
extern int decode_prefix4(netdissect_options *ndo, const u_char *, u_int, char *, u_int);
#ifdef INET6
extern int decode_prefix6(netdissect_options *ndo, const u_char *, u_int, char *, u_int);
#endif
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
added "make check" when optimization is not on, glibc6 doesn't define ntohs(), and our attempt to optimize it for x86 doesn't work --- the functions need to be static, not extern. added decryption of IKE v2 payloads, when keys are provided by -E.
2007-11-25 02:13:33 +08:00
extern void esp_print_decodesecret(netdissect_options *ndo);
extern int esp_print_decrypt_buffer_by_ikev2(netdissect_options *ndo,
int initiator,
u_char spii[8], u_char spir[8],
Fix a bunch of de-constifications.
2015-04-27 08:24:42 +08:00
const u_char *buf, const u_char *end);
added "make check" when optimization is not on, glibc6 doesn't define ntohs(), and our attempt to optimize it for x86 doesn't work --- the functions need to be static, not extern. added decryption of IKE v2 payloads, when keys are provided by -E.
2007-11-25 02:13:33 +08:00
Adding support for ISO CALM FAST and ETSI GeoNetworking
2013-06-26 05:43:19 +08:00
extern void geonet_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *geo_pck, u_int len);
extern void calm_fast_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *calm_pck, u_int len);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#endif /* netdissect_h */
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