Commit Graph

45 Commits

Author SHA1 Message Date
Stig Bjørlykke 14720ace06 Fix comment end after SPDX identifier
Move */ to a separate line below the SPDX identifier.

Change-Id: Id1032215449cfccae0933147b45e04b65e0b727f
Reviewed-on: https://code.wireshark.org/review/27211
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2018-05-01 06:56:37 +00:00
Guy Harris 1f5f63f8ef Generalize wtap_pkthdr into a structure for packet and non-packet records.
Separate the stuff that any record could have from the stuff that only
particular record types have; put the latter into a union, and put all
that into a wtap_rec structure.

Add some record-type checks as necessary.

Change-Id: Id6b3486858f826fce4b096c59231f463e44bfaa2
Reviewed-on: https://code.wireshark.org/review/25696
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2018-02-09 00:29:51 +00:00
Dario Lombardo 8cd389e161 replace SPDX identifier GPL-2.0+ with GPL-2.0-or-later.
The first is deprecated, as per https://spdx.org/licenses/.

Change-Id: I8e21e1d32d09b8b94b93a2dc9fbdde5ffeba6bed
Reviewed-on: https://code.wireshark.org/review/25661
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2018-02-08 14:57:36 +00:00
Dario Lombardo 9e3e02f5e5 wiretap: more SPDX license convertions.
Change-Id: I12695d0713b1d7fe58f09b2037303fab523085e9
Reviewed-on: https://code.wireshark.org/review/25394
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
2018-01-20 17:17:58 +00:00
Guy Harris d62d867295 Get rid of trailing blank.
Change-Id: I3aa2f4a6e25f610e0e9236835bbcb588eeb15c08
Reviewed-on: https://code.wireshark.org/review/17602
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2016-09-09 08:31:56 +00:00
Guy Harris 216392975d Clean up error reporting.
Have xml_get_int() handle the setting of the two error reporting values
and give a better error message.  Have it check to make sure that there
isn't cruft after the digits.

Change-Id: Id590430eb52668ef76de8aa7096a27d8fc094208
Reviewed-on: https://code.wireshark.org/review/17601
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2016-09-09 08:30:42 +00:00
Dario Lombardo 4312ec8996 dct3trace: use ws_strtoi function.
Change-Id: Iaa656dc4b939ac9649b87e88c9d27082d3e53f00
Reviewed-on: https://code.wireshark.org/review/17555
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2016-09-09 07:49:26 +00:00
Michael Mann 57ef06e242 *_stdup_printf -> strdup for "single string only" formatting.
Done for performance improvements.

This could probably be done in checkAPIs.pl, but this was just
a quick manual check with grepping.

Change-Id: I91ff102cb528bb00fa2f65489de53890e7e46f2d
Reviewed-on: https://code.wireshark.org/review/15751
Reviewed-by: Michael Mann <mmann78@netscape.net>
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Jaap Keuter <jaap.keuter@xs4all.nl>
2016-06-06 06:03:58 +00:00
Martin Mathieson a190c936d7 Remove unnecessary includes from wiretap folder
Change-Id: I10d3057801673bc1c8ea78f144215869cc4b1851
Reviewed-on: https://code.wireshark.org/review/6217
Petri-Dish: Martin Mathieson <martin.r.mathieson@googlemail.com>
Reviewed-by: Martin Mathieson <martin.r.mathieson@googlemail.com>
2015-01-03 21:06:36 +00:00
Bill Meier 454fd6e9eb Add "Editor modelines"; Adjust whitespace as needed.
Change-Id: Ic5a5acb0f36d3aa144edbfb1ae71097b18426db4
Reviewed-on: https://code.wireshark.org/review/6216
Reviewed-by: Bill Meier <wmeier@newsguy.com>
2015-01-02 00:49:09 +00:00
Guy Harris 5bfde7c638 Don't use ctype.h routines.
That avoids locale dependency and handles possibly-signed chars (which
we weren't doing before).

Change-Id: I70f3d993c9a8fbf870901f12b430d733968c3fa8
Reviewed-on: https://code.wireshark.org/review/4781
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-10-17 20:37:42 +00:00
Guy Harris 45e462985d Use an enum for the open-routine return value, as per Evan Huus's suggestion.
Clean up some things we ran across while making those changes.

Change-Id: Ic0d8943d36e6e120d7af0a6148fad98015d1e83e
Reviewed-on: https://code.wireshark.org/review/4581
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-10-09 23:45:30 +00:00
Guy Harris 54b733ce9a Make the time stamp resolution per-packet.
Pcap-ng files don't have a per-file time stamp resolution, they have a
per-interface time stamp resolution.  Add new time stamp resolution
types of "unknown" and "per-packet", add the time stamp resolution to
struct wtap_pkthdr, have the libwiretap core initialize it to the
per-file time stamp resolution, and have pcap-ng do the same thing with
the resolution that it does with the packet encapsulation.

Get rid of the TS_PREC_AUTO_XXX values; just have TS_PREC_AUTO, which
means "use the packet's resolution to determine how many significant
digits to display".  Rename all the WTAP_FILE_TSPREC_XXX values to
WTAP_TSPREC_XXX, as they're also used for per-packet values.

Change-Id: If9fd8f799b19836a5104aaa0870a951498886c69
Reviewed-on: https://code.wireshark.org/review/4349
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-09-28 18:38:18 +00:00
Guy Harris 0734ac385f Rename buffer_ routines to ws_buffer_ to avoid name collisions.
In particular, epan/wslua/lrexlib.c has its own buffer_ routines,
causing some linker warnings on some platforms, as reported in bug
10332.

(Not to be backported to 1.12, as that would change the API and ABI of
libwsutil and libwiretap.  We should also make the buffer_ routines in
epan/wslua/lrexlib.c static, which should also address this problem, but
the name change avoids other potential namespace collisions.)

Change-Id: I1d42c7d1778c7e4c019deb2608d476c52001ce28
Reviewed-on: https://code.wireshark.org/review/3351
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-08-02 11:01:29 +00:00
Guy Harris d4dab16a3f Only one buffer.c, please.
Otherwise, if you link with both libwiretap and libfiletap, it's
anybody's guess which one you get.  That means you're wasting memory
with two copies of its routines if they're identical, and means
surprising behavior if they're not (which showed up when I was debugging
a double-free crash - fixing libwiretap's buffer_free() didn't fix the
problem, because Wireshark happened to be calling libfiletap' unfixed
buffer_free()).

There's nothing *tap-specific about Buffers, anyway, so it really
belongs in wsutil.

Change-Id: I91537e46917e91277981f8f3365a2c0873152870
Reviewed-on: https://code.wireshark.org/review/3066
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-15 23:43:32 +00:00
Guy Harris 6db77b000f Allow wtap_read() and wtap_seek_read() to return records other than packets.
Add a "record type" field to "struct wtap_pkthdr"; currently, it can be
REC_TYPE_PACKET, for a record containing a packet, or
REC_TYPE_FILE_TYPE_SPECIFIC, for records containing file-type-specific
data.

Modify code that reads packets to be able to handle non-packet records,
even if that just means ignoring them.

Rename some routines to indicate that they handle more than just
packets.

We don't yet have any libwiretap code that supplies records other than
REC_TYPE_PACKET or that supporting writing records other than
REC_TYPE_PACKET, or any code to support plugins for handling
REC_TYPE_FILE_TYPE_SPECIFIC records; this is just the first step for bug
8590.

Change-Id: Idb40b78f17c2c3aea72031bcd252abf9bc11c813
Reviewed-on: https://code.wireshark.org/review/1773
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-05-24 18:31:25 +00:00
Guy Harris a344c9736e Revert "Allow wtap_read() and wtap_seek_read() to return non-packet records."
This reverts commit c0c480d08c.

A better way to do this is to have the record type be part of struct wtap_pkthdr; that keeps the metadata for the record together and requires fewer API changes.  That is in-progress.

Change-Id: Ic558f163a48e2c6d0df7f55e81a35a5e24b53bc6
Reviewed-on: https://code.wireshark.org/review/1741
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-05-23 10:50:10 +00:00
Guy Harris c0c480d08c Allow wtap_read() and wtap_seek_read() to return non-packet records.
This is the first step towards implementing the mechanisms requestd in
bug 8590; currently, we don't return any records other than packet
records from libwiretap, and just ignore non-packet records in the rest
of Wireshark, but this at least gets the ball rolling.

Change-Id: I34a45b54dd361f69fdad1a758d8ca4f42d67d574
Reviewed-on: https://code.wireshark.org/review/1736
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-05-23 03:02:32 +00:00
Guy Harris a1b1c8bed5 Revert "Refactor Wiretap"
This reverts commit 1abeb277f5.

This isn't building, and looks as if it requires significant work to fix.

Change-Id: I622b1bb243e353e874883a302ab419532b7601f2
Reviewed-on: https://code.wireshark.org/review/1568
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-05-09 05:21:01 +00:00
Michael Mann 1abeb277f5 Refactor Wiretap
Start of refactoring Wiretap and breaking structures down into "generally useful fields for dissection" and "capture specific". Since this in intended as a "base" for Wiretap and Filetap, the "wft" prefix is used for "common" functionality.

The "architectural" changes can be found in cfile.h, wtap.h, wtap-int.h and (new file) wftap-int.h. Most of the other (painstaking) changes were really just the result of compiling those new architecture changes.

bug:9607
Change-Id: Ife858a61760d7a8a03be073546c0e7e582cab2ae
Reviewed-on: https://code.wireshark.org/review/1485
Reviewed-by: Michael Mann <mmann78@netscape.net>
2014-05-09 03:04:39 +00:00
Alexis La Goutte 296591399f Remove all $Id$ from top of file
(Using sed : sed -i '/^ \* \$Id\$/,+1 d')

Fix manually some typo (in export_object_dicom.c and crc16-plain.c)

Change-Id: I4c1ae68d1c4afeace8cb195b53c715cf9e1227a8
Reviewed-on: https://code.wireshark.org/review/497
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2014-03-04 14:27:33 +00:00
Guy Harris 9d41c658fe No seek-read routines use the length argument, so eliminate it from
wtap_seek_read().

svn path=/trunk/; revision=54570
2014-01-02 20:47:21 +00:00
Guy Harris 853da2eb9b The "file types" we have are actually combinations of types and
subtypes, e.g. Network Monitor version 1 and Network Monitor version 2
are separate "file types", even though they both come from Network
Monitor.

Rename various functions, #defines, and variables appropriately.

svn path=/trunk/; revision=53166
2013-11-08 09:53:01 +00:00
Bill Meier 88b157d91c Fix "unused variable 'dct3trace_magic_l2_end' [-Werror,-Wunused-const-variable" found by clang v3.4
svn path=/trunk/; revision=52749
2013-10-21 23:57:42 +00:00
Guy Harris f13ba97806 Fix some pointer-signedness (well, signedness of what the pointer points
to) warnings.

svn path=/trunk/; revision=50104
2013-06-21 02:59:54 +00:00
Guy Harris 32b95570df Merge "read record header" and "read packet data" routines into a single
routine, used both by read and seek-read routines.

svn path=/trunk/; revision=49988
2013-06-17 21:18:47 +00:00
Guy Harris 8c9edf1280 Have the seek-read routines take a Buffer rather than a guint8 pointer
as the "where to put the packet data" argument.

This lets more of the libwiretap code be common between the read and
seek-read code paths, and also allows for more flexibility in the "fill
in the data" path - we can expand the buffer as needed in both cases.

svn path=/trunk/; revision=49949
2013-06-16 00:20:00 +00:00
Pascal Quantin 5c56d95afe Prevent "'len' may be used uninitialized in this function" error when compiling with gcc 4.3.2
svn path=/trunk/; revision=49378
2013-05-17 13:37:36 +00:00
Guy Harris 26a909d980 Fill in the wtap_pkthdr in dct3trace_get_packet().
svn path=/trunk/; revision=49360
2013-05-17 00:21:16 +00:00
Guy Harris 88e9d1c1e5 Do not call wtap_file_read_unknown_bytes() or
wtap_file_read_expected_bytes() from an open routine - open routines are
supposed to return -1 on error, 0 if the file doesn't appear to be a
file of the specified type, or 1 if the file does appear to be a file of
the specified type, but those macros will cause the caller to return
FALSE on errors (so that, even if there's an I/O error, it reports "the
file isn't a file of the specified type" rather than "we got an error
trying to read the file").

When doing reads in an open routine before we've concluded that the file
is probably of the right type, return 0, rather than -1, if we get
WTAP_ERR_SHORT_READ - if we don't have enough data to check whether a
file is of a given type, we should keep trying other types, not give up.
For reads done *after* we've concluded the file is probably of the right
type, if a read doesn't return the number of bytes we asked for, but
returns an error of 0, return WTAP_ERR_SHORT_READ - the file is
apparently cut short.

For NetMon and NetXRay/Windows Sniffer files, use a #define for the
magic number size, and use that for both magic numbers.

svn path=/trunk/; revision=46803
2012-12-27 12:19:25 +00:00
Jakub Zawadzki 78631020b8 Add wtap_pseudo_header union to wtap_pkthdr structure.
Use pkthdr instead of pseudo_header as argument for dissecting.

svn path=/trunk/; revision=45601
2012-10-16 21:50:57 +00:00
Jeff Morriss 3551a86c36 We always HAVE_CONFIG_H so don't bother checking whether we have it or not.
svn path=/trunk/; revision=45015
2012-09-20 01:29:52 +00:00
Jakub Zawadzki bf81b42e1e Update Free Software Foundation address.
(COPYING will be updated in next commit)

svn path=/trunk/; revision=43536
2012-06-28 22:56:06 +00:00
Guy Harris 33bb54a945 file_seek() used to be a wrapper around fseek() or gzseek(), both of
which could use lseek() and were thus expensive due to system call
overhead.  To avoid making a system call for every packet on a
sequential read, we maintained a data_offset field in the wtap structure
for sequential reads.

It's now a routine that just returns information from the FILE_T data
structure, so it's cheap.  Use it, rather than maintaining the data_offset
field.

Readers for some file formats need to maintain file offset themselves;
have them do so in their private data structures.

svn path=/trunk/; revision=42423
2012-05-04 16:56:18 +00:00
Guy Harris a59e931733 If xml_get_int() fails, bail immediately; don't use the variable it
would have filled in had it not failed.  (Thanks and a tip of the Hatlo
hat to the Clang static analyzer for complaining about this.)

svn path=/trunk/; revision=42306
2012-04-28 03:07:04 +00:00
Guy Harris b6ff142f60 Add a presence flag field to the packet information structure filled in
by Wiretap, to indicate whether certain fields in that structure
actually have data in them.

Use the "time stamp present" flag to omit showing time stamp information
for packets (and "packets") that don't have time stamps; don't bother
working very hard to "fake" a time stamp for data files.

Use the "interface ID present" flag to omit the interface ID for packets
that don't have an interface ID.

We don't use the "captured length, separate from packet length, present"
flag to omit the captured length; that flag might be present but equal
to the packet length, and if you want to know if a packet was cut short
by a snapshot length, comparing the values would be the way to do that.

More work is needed to have wiretap/pcapng.c properly report the flags,
e.g. reporting no time stamp being present for a Simple Packet Block.

svn path=/trunk/; revision=41185
2012-02-25 23:24:34 +00:00
Guy Harris d94bd07f99 Rename WTAP_ERR_BAD_RECORD to WTAP_ERR_BAD_FILE; it really reports any
form of corruption/bogosity in a file, including in a file header as
well as in records in the file.  Change the error message
wtap_strerror() returns for it to reflect that.

Use it for some file header problems for which it wasn't already being
used - WTAP_ERR_UNSUPPORTED shouldn't be used for that, it should only
be used for files that we have no reason to believe are invalid but that
have a version number we don't know about or some other
non-link-layer-encapsulation-type value we don't know about.

svn path=/trunk/; revision=40175
2011-12-13 09:53:50 +00:00
Guy Harris 7758cd97f4 Squelch some compiler warnings.
svn path=/trunk/; revision=37672
2011-06-15 19:36:43 +00:00
Guy Harris 6cbf6ce16c Add a new WTAP_ERR_DECOMPRESS error, and use that for errors discovered
by the gunzipping code.  Have it also supply a err_info string, and
report it.  Have file_error() supply an err_info string.

Put "the file" - or, for WTAP_ERR_DECOMPRESS, "the compressed file", to
suggest a decompression error - into the rawshark and tshark errors,
along the lines of what other programs print.

Fix a case in the Netscaler code where we weren't fetching the error
code on a read failure.

svn path=/trunk/; revision=36748
2011-04-21 09:41:52 +00:00
Gerald Combs f3bbbce5e3 Fix a buffer overflow found by the Visual C++ analyzer.
svn path=/trunk/; revision=35953
2011-02-16 00:42:06 +00:00
Guy Harris dda82be58c Squelch some (valid) warnings.
svn path=/trunk/; revision=31955
2010-02-23 01:23:39 +00:00
Stig Bjørlykke 1f5b4f5864 Fixed data type for a buffer.
svn path=/trunk/; revision=30609
2009-10-18 21:29:44 +00:00
Jaap Keuter 479b1ee737 From Duncan Salerno:
Ensure dct3trac packets never longer than 23 bytes.

svn path=/trunk/; revision=28838
2009-06-24 20:27:58 +00:00
Guy Harris 6552d5d5bd More P64 changes.
svn path=/trunk/; revision=27640
2009-03-07 05:13:44 +00:00
Jaap Keuter 322d89cf15 From Duncan Salerno:
Added LAPDm protocol dissector, GSM Um layer, and wiretap support for dct3trace
captures, generated by gammu (many available at http://wiki.thc.org/gsm).

svn path=/trunk/; revision=27176
2009-01-07 07:21:31 +00:00