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tcpdump/netdissect.h

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beginnings of library version of netdissect.
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/*
* Copyright (c) 1988-1997
* The Regents of the University of California. All rights reserved.
*
minor whitespace changes
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* Copyright (c) 1998-2012 Michael Richardson <mcr@tcpdump.org>
beginnings of library version of netdissect.
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* 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>
#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.
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#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.
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#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.
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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)
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u_int v; /* value */
beginnings of library version of netdissect.
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const char *s; /* string */
};
new tok2strbuf() API.
2004-04-29 10:15:41 +08:00
#define TOKBUFSIZE 128
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.
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char *buf, size_t bufsize);
/* tok2str is deprecated */
beginnings of library version of netdissect.
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extern const char *tok2str(const struct tok *, const char *, int);
extern char *bittok2str(const struct tok *, const char *, int);
change the TCP printer to print new-style order: - seperate fields by comma - use [] for flags and options sets - print a trailing length field make use of tok2str() and bitttok2str() move port definitions into tcp.h
2007-01-29 17:59:42 +08:00
extern char *bittok2str_nosep(const struct tok *, const char *, int);
beginnings of library version of netdissect.
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typedef struct netdissect_options netdissect_options;
struct netdissect_options {
int ndo_aflag; /* translate network and broadcast addresses */
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.
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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.
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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 */
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
int ndo_Uflag; /* "unbuffered" output of dump files */
beginnings of library version of netdissect.
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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
*/
Use the new libpcap API's if available; that means we can support "-B" on all platforms in that case. Also, add a "-I" flag to turn on monitor mode.
2008-04-05 03:42:11 +08:00
int ndo_Bflag; /* buffer size */
int ndo_Iflag; /* rfmon (monitor) mode */
beginnings of library version of netdissect.
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int ndo_Oflag; /* run filter code optimizer */
int ndo_dlt; /* if != -1, ask libpcap for the DLT it names*/
Add support for setting the time stamp type for a capture. Based on a patch from Scott Mcmillan <scott.a.mcmillan@intel.com>. While we're at it, make some error messages a bit less geeky.
2010-08-23 08:32:26 +08:00
int ndo_jflag; /* packet time stamp source */
beginnings of library version of netdissect.
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int ndo_pflag; /* don't go promiscuous */
minor whitespace changes
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int ndo_Cflag; /* rotate dump files after this many bytes */
beginnings of library version of netdissect.
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int ndo_Cflag_count; /* Keep track of which file number we're writing */
from Will Drewry <will AT alum.bu.edu> auto-rotate files after some times given with the G flag;
2005-10-20 15:43:51 +08:00
int ndo_Gflag; /* rotate dump files after this many seconds */
int ndo_Gflag_count; /* number of files created with Gflag rotation */
time_t ndo_Gflag_time; /* The last time_t the dump file was rotated. */
beginnings of library version of netdissect.
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int ndo_Wflag; /* recycle output files after this number of files */
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_WflagChars;
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 */
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 */
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.
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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.
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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;
/* bookkeeping for ^T output */
int ndo_infodelay;
/* pointer to void function to output stuff */
void (*ndo_default_print)(netdissect_options *,
register const u_char *bp, register u_int length);
void (*ndo_info)(netdissect_options *, int verbose);
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
;
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
;
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.
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};
#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.
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#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.
*
* XXX - could it be larger? If so, should it? 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.
beginnings of library version of netdissect.
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*/
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
#define MAXIMUM_SNAPLEN 65535
/*
* The default snapshot length is the maximum.
*/
#define DEFAULT_SNAPLEN MAXIMUM_SNAPLEN
beginnings of library version of netdissect.
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#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.
*/
#define ND_TTEST2(var, l) (ndo->ndo_snapend - (l) <= ndo->ndo_snapend && \
(const u_char *)&(var) <= ndo->ndo_snapend - (l))
beginnings of library version of netdissect.
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/* 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.
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minor whitespace changes
2012-04-08 08:31:47 +08:00
#if 0
beginnings of library version of netdissect.
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extern void ts_print(netdissect_options *ipdo,
const struct timeval *);
extern void relts_print(int);
#endif
extern int fn_print(const u_char *, const u_char *);
extern int fn_printn(const u_char *, u_int, const u_char *);
extern const char *tok2str(const struct tok *, const char *, int);
extern void wrapup(int);
#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)
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
extern void safeputchar(int);
add a maxlen boundary check to safeputs, print unprintable chars as hex in safeputchar
2006-02-08 09:38:16 +08:00
extern void safeputs(const char *, 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" : "")
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#if 0
extern const char *isonsap_string(netdissect_options *, const u_char *);
extern const char *protoid_string(netdissect_options *, const u_char *);
extern const char *dnname_string(netdissect_options *, u_short);
extern const char *dnnum_string(netdissect_options *, u_short);
#endif
/* The printer routines. */
#include <pcap.h>
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
typedef u_int (*if_ndo_printer)(struct netdissect_options *ndo,
const struct pcap_pkthdr *, const u_char *);
typedef u_int (*if_printer)(const struct pcap_pkthdr *, const u_char *);
extern if_ndo_printer lookup_ndo_printer(int);
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);
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
reworked print-ether to use netdissect
2010-10-08 02:36:49 +08:00
extern void ether_print(netdissect_options *,
const u_char *, u_int, u_int,
void (*)(netdissect_options *, const u_char *),
const u_char *);
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);
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 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 *);
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
extern const u_char * ns_nprint (register const u_char *, register const u_char *);
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);
extern void hex_and_ascii_print_with_offset(netdissect_options *,const char *,
u_int, u_int);
extern void hex_and_ascii_print(netdissect_options *,const char *, u_int);
extern void telnet_print(netdissect_options *,const u_char *, u_int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
extern int llc_print(netdissect_options *,
const u_char *, u_int, u_int, const u_char *,
const u_char *, u_short *);
extern void aarp_print(netdissect_options *,const u_char *, u_int);
extern void atalk_print(netdissect_options *,const u_char *, u_int);
extern void atm_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
extern void bootp_print(netdissect_options *,const u_char *,
u_int, u_short, u_short);
extern void bgp_print(netdissect_options *,const u_char *, int);
extern void bxxp_print(netdissect_options *,const u_char *, u_int);
extern void chdlc_if_print(u_char *user, const struct pcap_pkthdr *h,
register const u_char *p);
extern void chdlc_print(netdissect_options *ndo,
register const u_char *p, u_int length, u_int caplen);
extern void cisco_autorp_print(netdissect_options *,
const u_char *, u_int);
extern void cnfp_print(netdissect_options *,const u_char *cp,
u_int len, const u_char *bp);
extern void decnet_print(netdissect_options *,const u_char *,
u_int, u_int);
extern void default_print(netdissect_options *,const u_char *, u_int);
extern void dvmrp_print(netdissect_options *,const u_char *, u_int);
extern void egp_print(netdissect_options *,const u_char *, u_int,
const u_char *);
extern void arcnet_if_print(u_char*,const struct pcap_pkthdr *,const u_char *);
extern void token_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
extern void fddi_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
extern void gre_print(netdissect_options *,const u_char *, u_int);
extern void icmp_print(netdissect_options *,const u_char *, u_int,
const u_char *);
extern void hsrp_print(netdissect_options *ndo,
register const u_char *bp, register u_int len);
extern void ieee802_11_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
extern void igmp_print(netdissect_options *,
register const u_char *, u_int);
extern void igrp_print(netdissect_options *,const u_char *, u_int,
const u_char *);
extern void ipN_print(netdissect_options *,const u_char *, u_int);
extern void ipx_print(netdissect_options *,const u_char *, u_int);
extern void isoclns_print(netdissect_options *,const u_char *,
u_int, u_int, const u_char *, const u_char *);
extern void krb_print(netdissect_options *,const u_char *, u_int);
extern void llap_print(netdissect_options *,const u_char *, u_int);
extern const char *linkaddr_string(netdissect_options *ndo,
const u_char *ep, const unsigned int len);
extern void ltalk_if_print(netdissect_options *ndo,
u_char *user, const struct pcap_pkthdr *h,
const u_char *p);
extern void mpls_print(netdissect_options *ndo,
const u_char *bp, u_int length);
extern void msdp_print(netdissect_options *ndo,
const unsigned char *sp, u_int length);
extern void nfsreply_print(netdissect_options *,const u_char *,
u_int, const u_char *);
extern void nfsreq_print(netdissect_options *,const u_char *,
u_int, const u_char *);
extern void ns_print(netdissect_options *,const u_char *, u_int);
extern void ntp_print(netdissect_options *,const u_char *, u_int);
extern void null_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
extern void ospf_print(netdissect_options *,const u_char *,
u_int, const u_char *);
extern void pimv1_print(netdissect_options *,const u_char *, u_int);
extern void mobile_print(netdissect_options *,const u_char *, u_int);
modularize ip6 nextlayer checksum generation and change tcp6 and pim6 to use it.
2009-10-12 16:16:58 +08:00
extern void pim_print(netdissect_options *,const u_char *, u_int, u_int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
extern void pppoe_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
extern void pppoe_print(netdissect_options *,const u_char *, u_int);
extern void ppp_print(netdissect_options *,
register const u_char *, u_int);
extern void ppp_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
extern void ppp_hdlc_if_print(u_char *,
const struct pcap_pkthdr *, const u_char *);
extern void ppp_bsdos_if_print(u_char *,
const struct pcap_pkthdr *, const u_char *);
extern int vjc_print(netdissect_options *,register const char *,
register u_int, u_short);
extern void raw_if_print(u_char *,
const struct pcap_pkthdr *, const u_char *);
extern void rip_print(netdissect_options *,const u_char *, u_int);
add support for the RPKI/Router Protocol as per draft-ietf-sidr-rpki-rtr-12
2011-06-16 23:17:20 +08:00
extern void rpki_rtr_print(netdissect_options *,const u_char *, u_int);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
extern void sctp_print(netdissect_options *ndo,
minor whitespace changes
2012-04-08 08:31:47 +08:00
const u_char *bp, const u_char *bp2,
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
u_int sctpPacketLength);
extern void sl_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
extern void lane_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
extern void sl_bsdos_if_print(u_char *,
const struct pcap_pkthdr *, const u_char *);
extern void sll_if_print(u_char *,
const struct pcap_pkthdr *, const u_char *);
extern void snmp_print(netdissect_options *,const u_char *, u_int);
extern void sunrpcrequest_print(netdissect_options *,const u_char *,
u_int, const u_char *);
extern void tcp_print(netdissect_options *,const u_char *, u_int,
const u_char *, int);
extern void tftp_print(netdissect_options *,const u_char *, u_int);
extern void timed_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 wb_print(netdissect_options *,const void *, u_int);
extern void esp_print_decodesecret(netdissect_options *ndo);
extern void rx_print(netdissect_options *,register const u_char *,
int, int, int, u_char *);
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 nbt_tcp_print(netdissect_options *,const u_char *, int);
extern void nbt_udp137_print(netdissect_options *,
const u_char *data, int);
extern void nbt_udp138_print(netdissect_options *,
const u_char *data, int);
extern char *smb_errstr(netdissect_options *,int, int);
Check the "status value is an NT status" flag and, if it is, treat the status value as such. Constify some tables.
2004-12-30 11:36:50 +08:00
extern const char *nt_errstr(netdissect_options *, u_int32_t);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
extern void print_data(netdissect_options *,const unsigned char *, int);
extern void l2tp_print(netdissect_options *,const u_char *, u_int);
extern void lcp_print(netdissect_options *,const u_char *, u_int);
extern void vrrp_print(netdissect_options *,const u_char *bp,
u_int len, int ttl);
Add a CARP dissector and a command-line option to dissect proto 112 as CARP. CARP and VRRP both use IP protocol number 112, so there needs to be a -T flag to specify that protocol 112 be dissected as CARP rather than VRRP. Also update the man page.
2011-11-24 03:53:13 +08:00
extern void carp_print(netdissect_options *,const u_char *bp,
u_int len, int ttl);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
extern void cdp_print(netdissect_options *,const u_char *,
u_int, u_int, const u_char *, const u_char *);
extern void stp_print(netdissect_options *,const u_char *p, u_int length);
extern void radius_print(netdissect_options *,const u_char *, u_int);
extern void lwres_print(netdissect_options *,const u_char *, u_int);
extern void pptp_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
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 *);
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
#ifdef INET6
extern void ip6_print(netdissect_options *,const u_char *, u_int);
Convert the IPv6 printer to use netdissect.
2010-11-08 04:50:16 +08:00
#if 0
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
extern void ip6_opt_print(netdissect_options *,const u_char *, int);
extern int hbhopt_print(netdissect_options *,const u_char *);
extern int dstopt_print(netdissect_options *,const u_char *);
extern int frag6_print(netdissect_options *,const u_char *,
const u_char *);
extern void icmp6_print(netdissect_options *,const u_char *,
const u_char *);
extern void ripng_print(netdissect_options *,const u_char *, int);
extern int rt6_print(netdissect_options *,const u_char *, const u_char *);
extern void ospf6_print(netdissect_options *,const u_char *, u_int);
extern void dhcp6_print(netdissect_options *,const u_char *,
u_int, u_int16_t, u_int16_t);
extern void zephyr_print(netdissect_options * ndo,
const u_char *cp, int length);
Convert the IPv6 printer to use netdissect.
2010-11-08 04:50:16 +08:00
#endif /* 0 */
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
#if 0
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 {
const u_int8_t *ptr;
int len;
};
extern u_int16_t in_cksum(const struct cksum_vec *, int);
extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t);
beginnings of library version of netdissect.
2004-03-25 11:29:53 +08:00
#endif
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],
u_char *buf, u_char *end);
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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