Commit Graph

99 Commits

Author SHA1 Message Date
Sake Blok be915d7374 epan: Allow nested dependent packets
Save all dependent frames when there are multiple levels
of reassembly.
2022-03-06 23:43:03 +00:00
Guy Harris 3cb6403a4c wiretap: always allocate a block for a record.
Without that, you could add a comment to a record in a file format the
reading code for which doesn't allocate blocks, but the comment doesn't
get saved, as there's no block in which to save the comment option.

This simplifies some code paths, as we're either using the record's
modified block or we're using the block as read from the file, there's
no third possibility.

If we attempt to read a record, and we get an error, and a block was
allocated for the record, unreference it, so the individual file readers
don't have to worry about it.
2021-08-29 19:12:13 -07:00
Guy Harris dd5907d2a3 Consistently refer to blocks that have been modified as "modified".
"User" sounds as if the blocks belong to the user; at most, the current
user might have modified them directly, but they might also have, for
example, run a Lua script that, unknown to them, modified comments.
Also, a file might have "user comments" added by a previous user, who
them wrote the file and and provided it to the current user.

"Modified" seems a bit clearer than "changed".
2021-07-08 00:05:35 -07:00
David Perry 73087d6fb4 Use wtap_blocks for packet comments
Mostly functioning proof of concept for #14329. This work is intended to
allow Wireshark to support multiple packet comments per packet.

Uses and expands upon the `wtap_block` API in `wiretap/wtap_opttypes.h`.
It attaches a `wtap_block` structure to `wtap_rec` in place of its
current `opt_comment` and `packet_verdict` members to hold OPT_COMMENT
and OPT_PKT_VERDICT option values.
2021-07-07 18:40:24 +00:00
Guy Harris 1e1f4e6b5f Move more headers outside extern "C".
If a header declares a function, or anything else requiring the extern
"C" decoration, have it wrap the declaration itself; don't rely on the
header itself being included inside extern "C".
2021-03-16 02:36:10 -07:00
Guy Harris 20800366dd HTTPS (almost) everywhere.
Change all wireshark.org URLs to use https.

Fix some broken links while we're at it.

Change-Id: I161bf8eeca43b8027605acea666032da86f5ea1c
Reviewed-on: https://code.wireshark.org/review/34089
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2019-07-26 18:44:40 +00:00
Guy Harris 7eb3e47fa4 Try to squeeze some bytes out of the frame_data structure.
Make the time stamp precision a 4-bit bitfield, so, when combined with
the other bitfields, we have 32 bits.  That means we put the flags at
the same structure level as the time stamp precision, so they can be
combined; that gets rid of an extra "flags." for references to the flags.

Put the two pointers next to each other, and after a multiple of 8 bytes
worth of other fields, so that there's no padding before or between them.

It's still not down to 64 bytes, which is the next lower power of 2, so
there's more work to do.

Change-Id: I6f3e9d9f6f48137bbee8f100c152d2c42adb8fbe
Reviewed-on: https://code.wireshark.org/review/31213
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2018-12-27 04:34:29 +00:00
Guy Harris b1de8c87a1 Older versions of Clang don't understand -Wpedantic.
Define DIAG_OFF_PEDANTIC and DIAG_ON_PEDANTIC, and have it do nothing on
Clang prior to 4.0.

Change-Id: Ic6b2e607659db66f3210401024bf3f2239665506
Reviewed-on: https://code.wireshark.org/review/27649
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2018-05-18 22:31:05 +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 55c68ee69c epan: use SPDX indentifiers.
Skipping dissectors dir for now.

Change-Id: I717b66bfbc7cc81b83f8c2cbc011fcad643796aa
Reviewed-on: https://code.wireshark.org/review/25694
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2018-02-08 19:29:45 +00:00
Guy Harris eb8ffb74e2 Use cfile.h to define the capture_file type.
Have cfile-int.h declare the structure, and use it in files that
directly access the structure.

Have cfile.h just incompletely declare the structure and include it
rather than explicitly declaring it in source files or other header
files.

Never directly refer to struct _capture_file except when typedeffing
capture_file.

Add #includes as necessary, now that cfile.h doesn't drag in a ton of

Change-Id: I7931c8039d75ff7c980b0f2a6e221f20e602a556
Reviewed-on: https://code.wireshark.org/review/24686
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2017-12-03 18:54:37 +00:00
Jakub Zawadzki 7dc065397a Optimize frame_data layout.
Move tsprec to remove padding. It saves 8 bytes on amd64,
shrink size of frame_data structure from 96 to 88 bytes.

Change-Id: Ib69687b2e5b7d65b5c15eda7d5834100a02c059e
Reviewed-on: https://code.wireshark.org/review/20807
Petri-Dish: Jakub Zawadzki <darkjames-ws@darkjames.pl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2017-03-31 20:29:37 +00:00
João Valverde ecb4dc396e Include ws_diag_control.h in config.h
Change-Id: Ia394071710ecda3b0e6686a51fbca45a8ff20317
Reviewed-on: https://code.wireshark.org/review/14749
Petri-Dish: João Valverde <j@v6e.pt>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: João Valverde <j@v6e.pt>
2016-04-04 23:05:31 +00:00
Guy Harris 099698445b Move the proto data stuff out of frame_data.[ch].
It's not tied to the frame_data structure any more, so it belongs by
itself.

Clean up some #includes while we're at it; in particular, frame_data.h
doesn't use anything related to tvbuffs, so don't have it gratuitiously
include tvbuff.h.

Change-Id: Ic32922d4a3840bac47007c5d4c546b8842245e0c
Reviewed-on: https://code.wireshark.org/review/13518
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2016-01-25 02:24:34 +00:00
Guy Harris bc5a0374bf Add the packet number to the packet_info structure, and use it.
That removes most of the uses of the frame number field in the
frame_data structure.

Change-Id: Ie22e4533e87f8360d7c0a61ca6ffb796cc233f22
Reviewed-on: https://code.wireshark.org/review/13509
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2016-01-24 03:41:28 +00:00
Guy Harris 9141bd9700 Add more fields to packet_info structure and use them.
Add fields for the absolute time stamp (and another field for a presence
flag for the absolute time stamp) and the packet encapsulation for the
packet.

This lets us remove the field for the packet encapsulation in the
frame_data structure; do so.

Change-Id: Ifb910a9a192414e2a53086f3f7b97f39ed36aa39
Reviewed-on: https://code.wireshark.org/review/13499
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2016-01-23 03:50:58 +00:00
Peter Wu 5539dba1df Do not apply color rule filter every dissection
Introduce a frame_data flag "need_colorize" to indicate that coloring
rules need to be evaluated and set it for the GUI (not tshark). This
restores the original performance characteristics.

It additionally fixes a regression where the color filter name and
filter is not shown anymore in the tree (I guess it is related to the
edt->tree being NULL when re-selected, resulting in empty color_filter).

Remaining problems:

 - Display filter cannot contain frame.coloring_rule.* fields. Code is
   present to enable this, but then a method is needed to avoid an
   expensive second calculation (which is why it is disabled).
 - The columns are still not updated after coloring rule change.
 - The two frame.coloring_rule fields in the tree are not updated when
   the coloring rule is changed (e.g. Ctrl-1).

The last two issues were supposed to be fixed by the previous patch, but
there is probably some missing code... Tested with GTK and Qt.

Bug: 11980
Change-Id: I3ef7713b28db242e178d20f6a5f333374718b52e
Reviewed-on: https://code.wireshark.org/review/13170
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2016-01-13 07:38:25 +00:00
Pascal Quantin 62b03da49a Fix display of bytes as EBCDIC
MSVC compiler does not support properly setting an enum being part of a bit field.
For example the following code:
pinfo->fd->flags.encoding = PACKET_CHAR_ENC_CHAR_EBCDIC;
changes pinfo->fd->flags.encoding from 0x0 to 0xfffffffe instead of 0x1
Let's put back an unsigned int definition (like it is in master-1.12 branch) and add explicit casts where required

Bug: 11787
Change-Id: Idae0140fb6c172f1b3dbf10baefc8cfb00128f4c
Reviewed-on: https://code.wireshark.org/review/12220
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
2015-11-27 18:39:09 +00:00
Gerald Combs 77686a65a3 Get rid of a void * in frame_data.
Forward-declare struct _color_filter and use it in struct _frame_data.

Change-Id: I4543206bc71ad1e088b60347e6deb6d87a573b35
Reviewed-on: https://code.wireshark.org/review/10914
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
2015-10-12 00:38:20 +00:00
Gerald Combs e11d7ef08f Fix diagnostics macros and squelch a gcc warning.
Both clang and gcc define __GNUC__. Make sure we account for that when
defining diagnostic macros.

Use DIAG_OFF + DIAG_ON to suppress gcc -pedantic warnings about
frame_data.

Get rid of packet_char_enc casts.

Change-Id: Idbcc61bcdb35c1d20f185461c69451dcdf73bae9
Reviewed-on: https://code.wireshark.org/review/7106
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Gerald Combs <gerald@wireshark.org>
2015-02-14 19:46:42 +00:00
Gerald Combs 931807ea61 Qt: Add the "new packet" window^Wdialog^Wwindow.
Allow persistence across files. Preserve the use of "window" even
though we're really a dialog.

Update ByteViewTab and ProtoTree to support multiple instances.

Remove the need for a cast in frame_data.

Add more forward declarations.

Change-Id: I50d3d9d1455b8ecc158a37218f9e41fe696d5ae2
Reviewed-on: https://code.wireshark.org/review/7086
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Gerald Combs <gerald@wireshark.org>
2015-02-12 23:32:54 +00:00
Gerald Combs 798eb97053 Qt: Packet list column sorting.
Sorting behavior should be identical to GTK+.

Pass the correct position to beginInsertRows. Add a list of to-do items
to packet_list.cpp.

Change-Id: Ie6ab4b9f2d780a2af430d0f90529edca5485dada
Reviewed-on: https://code.wireshark.org/review/4481
Reviewed-by: Gerald Combs <gerald@wireshark.org>
2014-10-06 21:10:11 +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
Alexis La Goutte 58a6487b54 Add WS_DLL_PUBLIC for p_remove_proto_data and tvb_child_uncompres function
Change-Id: If043683f366fedd849688ca3c512707954221a3b
Reviewed-on: https://code.wireshark.org/review/984
Reviewed-by: Michael Mann <mmann78@netscape.net>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2014-04-07 04:09:10 +00:00
Alexis La Goutte 5a67479bff Fix indent (use 2 spaces) and add modelinse info for frame_data.h
Change-Id: Ib9eced1b652345cd40edb96ddde092f41a8f669c
Reviewed-on: https://code.wireshark.org/review/986
Reviewed-by: Michael Mann <mmann78@netscape.net>
2014-04-06 17:56:49 +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
Jakub Zawadzki 0f8572cb51 Avoid including definition of column_info structure in dissectors.
Move COL_* enum to <epan/column-utils.h>

XXX Later we can rename epan/column-info.h to column-int.h (or smth like this)

svn path=/trunk/; revision=54352
2013-12-22 10:41:27 +00:00
Jakub Zawadzki 82e2675f45 Avoid including <wiretap/wtap.h> in dissectors.
svn path=/trunk/; revision=53655
2013-11-29 20:53:00 +00:00
Michael Mann 318d38b576 Use 32bit key in p_add_proto_data() and friends. Bug 9453 (https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9453)
From Dirk

svn path=/trunk/; revision=53529
2013-11-23 22:29:31 +00:00
Michael Mann 9b7fb8a811 Create the ability to have packet scoped "proto" data. Bug 9470 (https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9470)
I'm not sold on the name or module the proto_data functions live in, but I believe the function arguments are solid and gives us the most flexibility for the future.  And search/replace of a function name is easy enough to do.

The big driving force for getting this in sooner rather than later is the saved memory on ethernet packets (and IP packets soon), that used to have file_scope() proto data when all it needed was packet_scope() data (technically packet_info->pool scoped), strictly for Decode As.

All dissectors that use p_add_proto_data() only for Decode As functionality have been converted to using packet_scope().  All other dissectors were converted to using file_scope() which was the original scope for "proto" data.

svn path=/trunk/; revision=53520
2013-11-23 02:20:13 +00:00
Jakub Zawadzki 38edae1c71 Replace wtap_nstime with nstime_t, remove wtap_nstime_to_sec.
After r50154 nstime_t is inside wsutil/ so wiretap don't need it's own copy. 

svn path=/trunk/; revision=53184
2013-11-09 10:38:02 +00:00
Jörg Mayer 662c7704f8 After looking for something in the column-*.h files and
not finding it, I finally found it in column_info.h
Renamed column_info.h to column-info.h to have consistency
with the column*h files.

svn path=/trunk/; revision=52667
2013-10-18 13:06:05 +00:00
Jakub Zawadzki 08eb36b5af Remove fdata->opt_comment, add pkt_comment to pinfo
Original (read from file) comments can be accessed by pkthdr->opt_comment
Keep user comments in seperated BST, add new method for epan session to get it.

svn path=/trunk/; revision=51090
2013-08-01 20:59:38 +00:00
Jakub Zawadzki 9bb17b7b2b Remove interface_id, pack_flags from frame_data structure.
This patch assumes that wtap_phdr interface_id, pack_flags both from initial read and seek read will contain same values.
Please fix if it's not.

svn path=/trunk/; revision=51041
2013-07-30 23:14:09 +00:00
Jakub Zawadzki c702e92121 Replace relative timestamp with reference frame number. Saves 16B per frame.
svn path=/trunk/; revision=50772
2013-07-21 23:07:33 +00:00
Jakub Zawadzki 5d52e16734 Add helper function to epan_session which can be used to get absolute timestamp of given frame.
Remove ->prev_cap, for testing purpose also replace ->prev_dis with number of previously displayed frame number.

This patch reduce size of frame_data by 8B (amd64)
This is what (I think) was suggested by Guy in comment 13 (https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5821#c13)

svn path=/trunk/; revision=50765
2013-07-21 20:48:30 +00:00
Jeff Morriss a441793cba Move a couple of time-related modules into wsutil.
A bunch of files didn't really need to include these header files so remove
the include line rather than changing it.

svn path=/trunk/; revision=50154
2013-06-25 22:02:20 +00:00
Gerald Combs d14fa4914d Add Doxygen boilerplate for some of our core modules and data structures.
svn path=/trunk/; revision=49640
2013-05-30 22:20:21 +00:00
Gerald Combs 6b0c550696 Un-shadow a couple of variables.
svn path=/trunk/; revision=49317
2013-05-15 17:49:45 +00:00
Anders Broman 85ff18cf16 - Use the key for comparison of per_proto_data.
- Show the number of per-packet-data entries and which protocol has made entries in the frame.

svn path=/trunk/; revision=49313
2013-05-15 16:50:37 +00:00
Anders Broman 85a8e304dd Add the posibillity to use a key for per-packet-data.
svn path=/trunk/; revision=49259
2013-05-12 18:11:02 +00:00
Evan Huus 32799db42c Fix the leaking of packet comments, i.e. the rest of
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7530

The frame_data_cleanup function was ambiguous; it was being used for two
different purposes, and did neither of them quite properly. Split it instead
into frame_data_reset and frame_data_destroy, and call the correct one depending
on why we were originally calling frame_data_cleanup.

svn path=/trunk/; revision=48324
2013-03-15 18:04:50 +00:00
Balint Reczey 1ebdb2e521 Export libwireshark symbols using WS_DLL_PUBLIC define
Also remove old WS_VAR_IMPORT define and related Makefile magic
everywhere in the project.

svn path=/trunk/; revision=47992
2013-03-01 23:53:11 +00:00
Jakub Zawadzki b2c4ab3b2a Move pack_flags to better place.
Reduce sizeof(frame_data) from 136 to 128 (AMD64).

svn path=/trunk/; revision=47905
2013-02-26 21:32:11 +00:00
Guy Harris 8ed7a73e22 Fix a bunch of warnings.
Cast away some implicit 64-bit-to-32-bit conversion errors due to use of
sizeof.

Cast away some implicit 64-bit-to-32-bit conversion errors due to use of
strtol() and strtoul().

Change some data types to avoid those implicit conversion warnings.

When assigning a constant to a float, make sure the constant isn't a
double, by appending "f" to the constant.

Constify a bunch of variables, parameters, and return values to
eliminate warnings due to strings being given const qualifiers.  Cast
away those warnings in some cases where an API we don't control forces
us to do so.

Enable a bunch of additional warnings by default.  Note why at least
some of the other warnings aren't enabled.

randpkt.c and text2pcap.c are used to build programs, so they don't need
to be in EXTRA_DIST.

If the user specifies --enable-warnings-as-errors, add -Werror *even if
the user specified --enable-extra-gcc-flags; assume they know what
they're doing and are willing to have the compile fail due to the extra
GCC warnings being treated as errors.

svn path=/trunk/; revision=46748
2012-12-26 05:57:06 +00:00
Michael Tüxen 1f2b8a904c Add support for displaying the Packet Block Flags Word of pcapng.
svn path=/trunk/; revision=46698
2012-12-22 19:48:17 +00:00
Gerald Combs 0a28fb8f6a Update the Qt byte view widget to reflect the recent changes in the GTK+
byte view.

Move the packet_char_enc enum from packet.h to frame_data.h. Make the
encoding flag a packet_char_enc and make it one bit.

Get rid of the "cfile" global in a few places. C++-ize some of the font
code. Clean up some variable names.

svn path=/trunk/; revision=45838
2012-10-30 19:21:24 +00:00
Jakub Zawadzki b53dbea042 Make data_source opqaue, add getter for tvb.
svn path=/trunk/; revision=45672
2012-10-20 19:54:56 +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
Jakub Zawadzki 72ca9d0e61 Store pointers to previously displayed and captured packet, not nstime_t deltas.
This commit reduces size (from 144B to 128B on AMD64) of frame_data structure.

Part of bug 5821: Reduce per-packet memory requirements.

svn path=/trunk/; revision=45071
2012-09-23 16:25:28 +00:00