"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".
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.
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>
Move it next to other capture_file fields for the currently-selected
packet, add a comment indicating that's what all those fields are for,
separate them from the following fields that *aren't* for the
currently-selected field, and explicitly use them in cf_select_packet().
Also add a comment about why we're waiting until the end to free up the
old cf->edt in cf_select_packet() and cf_unselect_packet().
Change-Id: I1653af06eeb4ebe1131bc08bcaa2dc639932c7fa
Ping-Bug: 15683
Reviewed-on: https://code.wireshark.org/review/32764
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
This reverts commit 9445403f95.
cf_select_packet frees the buffer backing the dissection result
(cf->edt) which results in use-after-frees when callers try to access
the contents. See for example this call trace:
* PacketList::selectionChanged
* cf_select_packet(cap_file_, row)
* frameSelected(row) -> ByteViewTab::selectedFrameChanged
* addTab(source_name, get_data_source_tvb(source))
get_data_source_tvb returns the buffer that backs the dissection and
must remain valid even after dissection has completed. If this is not
done, then a possibly expensive redissection must be done in order to
populate the byte view. The temporary memory savings are not worth it.
Bug: 15683
Change-Id: Ia5ec2c7736cdebbac3c5bf46a4e2470c9236262d
Reviewed-on: https://code.wireshark.org/review/32758
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Most code that reads from a capture_file already has its own wtap_rec
and Buffer; change the remaining ones to do so as well.
Change-Id: I9b7c136642bbb375848c37ebe23c9cdeffe830c3
Reviewed-on: https://code.wireshark.org/review/32732
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
This:
1) means that we don't have to flag the compression argument with a
comment to indicate what it means (FALSE doesn't obviously say "not
compressed", WTAP_UNCOMPRESSED does);
2) leaves space in the interfaces in question for additional compression
types.
(No, this is not part 1 of an implementation of additional compression
types, it's just an API cleanup. Implementing additional compression
types involves significant work in libwiretap, as well as UI changes to
replace "compress the file" checkboxes with something to indicate *how*
to compress the file, or to always use some other form of compression).
Change-Id: I1d23dc720be10158e6b34f97baa247ba8a537abf
Reviewed-on: https://code.wireshark.org/review/30660
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
During live captures, "cf->state==FILE_READ_IN_PROGRESS" holds and as
such setting "cf->redissection_queued" from "cf_filter_packets" will
prevent the packet list from being updated (no new packets are added and
display filter changes are not applied).
Fix this by not checking "cf->state" and instead perform an explicit
check to detect the "update_progress_dlg" issue (see original commit).
As "cf->read_lock" is implied by "cf->redissecting", remove that check
as well (see "rescan_packets").
Print a warning instead of aborting in "cf_read" since I am not sure if
that condition is currently prevented by its callers.
Bug: 14918
Change-Id: Ieb7d1ae3cbeef18f17c850ae3778822ee625dc68
Fixes: v2.9.0rc0-1110-g8e07b778f6 ("file: do not perform recursive redissections to avoid crashes")
Reviewed-on: https://code.wireshark.org/review/28538
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
When packets are being read (in "cf_read") or rescanned/redissected (in
"rescan_packets"), it could call "update_progress_dlg". That could end
up accepting GUI actions such as changing profiles (which triggers a
redissection via "cf_redissect_packets") or changing the display filter
(which triggers another "rescan_packets" via "cf_filter_packets").
Such recursive calls waste CPU and in case of "cf_redissect_packets" it
also causes memory corruption (since "cf->epan" is destroyed while
"cf_read" tries to read and process packets).
Fix this by delaying the rescan/redissection when an existing rescan is
pending. Abort an existing rescan/redissection if a new redissection
(due to profile changes) or rescan (due to display filter changes) is
requested and restart this to ensure that the intended user action is
applied (such as a new display filter).
Bug: 14918
Change-Id: I646730f639b20aa9ec35306e3f11bf22f5923786
Reviewed-on: https://code.wireshark.org/review/28500
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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>
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>
Have separate packet_provider_data structures and packet_provider_funcs
structures; the latter holds a table of functions that libwireshark can
call for information about packets, the latter holds the data that those
functions use.
This means we no longer need to expose the structure of an epan_t
outside epan/epan.c; get rid of epan/epan-int.h.
Change-Id: I381b88993aa19e55720ce02c42ad33738e3f51f4
Reviewed-on: https://code.wireshark.org/review/24732
Reviewed-by: Guy Harris <guy@alum.mit.edu>
libwireshark now expects an epan_t to be created with a pointer to a
"packet provider" structure; that structure is opaque within
libwireshark, and a pointer to it is passed to the callbacks that
provide interface names, interface, descriptions, user comments, and
packet time stamps, and that set user comments. The code that calls
epan_new() is expected to provide those callbacks, and to define the
structure, which can be used by the providers. If none of the callbacks
need that extra information, the "packet provider" structure can be
null.
Have a "file" packet provider for all the programs that provide packets
from a file.
Change-Id: I4b5709a3dd7b098ebd7d2a7d95bcdd7b5903c1a0
Reviewed-on: https://code.wireshark.org/review/24731
Reviewed-by: Guy Harris <guy@alum.mit.edu>
The split isn't necessary now that epan no longer uses the capture_file
structure.
Change-Id: Ia232712a2fb5db511865805518e8d03509b2167f
Reviewed-on: https://code.wireshark.org/review/24693
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Embed one of those structures in a capture_file, and have a struct
epan_session point to that structure rather than to a capture_file.
Pass that structure to the routines that fetch data that libwireshark
uses when dissecting.
That separates the stuff that libwireshark expects from the stuff that
it doesn't look at.
Change-Id: Ia3cd28efb9622476437a2ce32204597fae720877
Reviewed-on: https://code.wireshark.org/review/24692
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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>
A while back Graham pointed out the SPDX project (spdx.org), which is
working on standardizing license specifications:
https://www.wireshark.org/lists/wireshark-dev/201509/msg00119.html
Appendix V of the specification describes a short identifier
(SPDX-License-Identifier) that you can use in place of boilerplate in
your source files:
https://spdx.org/spdx-specification-21-web-version#h.twlc0ztnng3b
Start the conversion process with our top-level C and C++ files.
Change-Id: Iba1d835776714deb6285e2181e8ca17f95221878
Reviewed-on: https://code.wireshark.org/review/24302
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Reviewed-by: Balint Reczey <balint@balintreczey.hu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Michael Mann <mmann78@netscape.net>
The Qt UI doesn't have a popup that tells you how long your file has been
loading. So let's set the load time each time we update the packets bar.
(Obviously this is only useful when you're waiting a long time for a file to
load...)
Change-Id: I9da372800a12454888439e2baf3d2a848c611501
Reviewed-on: https://code.wireshark.org/review/22234
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Use WTAP_MAX_PACKET_SIZE_STANDARD, set to 256KB, for everything except
for D-Bus captures. Use WTAP_MAX_PACKET_SIZE_DBUS, set to 128MB, for
them, because that's the largest possible D-Bus message size. See
https://bugs.freedesktop.org/show_bug.cgi?id=100220
for an example of the problems caused by limiting the snapshot length to
256KB for D-Bus.
Have a snapshot length of 0 in a capture_file structure mean "there is
no snapshot length for the file"; we don't need the has_snap field in
that case, a value of 0 mean "no, we don't have a snapshot length".
In dumpcap, start out with a pipe buffer size of 2KB, and grow it as
necessary. When checking for a too-big packet from a pipe, check
against the appropriate maximum - 128MB for DLT_DBUS, 256KB for
everything else.
Change-Id: Ib2ce7a0cf37b971fbc0318024fd011e18add8b20
Reviewed-on: https://code.wireshark.org/review/21952
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Guy Harris <guy@alum.mit.edu>
This patch introduces the frame.interface_description field.
While testing this new functionality it became obvious that we have
a non-optimal interaction between the existing cfile.c's
cap_file_get_interface_name(), the recently added frame.interface_name
field and this new frame.interface_description field.
The string returned from cap_file_get_interface_name() may in fact
come from one of three different sources: the idb's interface name
(if it exists) or the idb's interface description (if that exists)
or a default text of "unknown". The string ultimately becomes the
rame.interface_name whether or not the idb had an interface name
option to begin with. This behavior does not allow one to test for
the simple presence of frame.interface_name. The new peer function
cap_file_get_interface_description() added by this patch returns
NULL instead of "unknown" if the idb does not have an interface
description. Should cap_file_get_interface_name() be similarly
modified to return NULL if the idb does not have an interface name?
Bug: 9781
Change-Id: Ie479f373c5080c004dd22bd88919838feca71e95
Reviewed-on: https://code.wireshark.org/review/19861
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Highlight the matching tree item and matching packet bytes when
doing a Find Packet. Added cf->search_len to correctly highlight
the matching bytes when doing a regex search.
Bug: 12157
Change-Id: I84fbdb9b43be4355e24aff3cf5f8850f1119e2bf
Reviewed-on: https://code.wireshark.org/review/14086
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
Add support for using regular expressions in the Search Frame
when searching in packet list, packet details and packet bytes.
This search is in many cases faster than plain string search.
Change-Id: I2d8a709046f90d7b278fb39547fc4e2e420623bc
Reviewed-on: https://code.wireshark.org/review/13981
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
Switch from a plain QProgressBar to a QFrame with a QProgressBar and a
stop button.
Add a stop_flag boolean to the capture_file struct.
To do:
- Start adding the progress bar to dialogs.
- Don't complain so loudly when the user stops a capture.
Change-Id: Iedd1d7d79f2044f1a53e4fb22186d25930a3ef03
Reviewed-on: https://code.wireshark.org/review/9029
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Add PacketList::applyRecentColumnWidths which set the packet list
column widths from our recent settings. Make sure it gets called at
startup and when we change profiles.
Save the packet list header state so that we can restore it when we
reset the model (i.e. freezing and thawing) and load a new capture file.
Save the state when the user resizes a column. As a side effect this
works around a weird bug that adjusts the width of column 1 at an
inopportune time.
Add a profileChanging signal so that we can save the main window geometry
in each profile.
Get rid of MainWindow::configurationProfileChanged. It was unused.
Apply saved pane widths and heights. Note that we might want to add a
separate pair of recent settings for the Qt panes.
Use the last opened directory in the capture file dialog.
Git rid of some unneeded Q_UNUSEDs while we're here.
Bug: 10953
Change-Id: I812aff59818cf0b4d1598b580627d32728d2e9d7
Reviewed-on: https://code.wireshark.org/review/7247
Reviewed-by: Michal Labedzki <michal.labedzki@tieto.com>
Tested-by: Michal Labedzki <michal.labedzki@tieto.com>
Petri-Dish: Michal Labedzki <michal.labedzki@tieto.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
... to ensure that there are no potential issues with respect to
editors limiting the number of lines scanned at the end of the file
when checking for editor modelines.
Change-Id: Ic85cbb108bb5159d6ec4116fea11f5eebb4e44a4
Reviewed-on: https://code.wireshark.org/review/4688
Reviewed-by: Bill Meier <wmeier@newsguy.com>
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>
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>
There's a relatively new feature in 1.11.3 to select a specific file format
reader, instead of relying on magics or heuristics. If you select a file
reader and open a file, open it, and then click the reload-file button or go
to View->Reload or press the ctrl-R keymap, the file is reloaded but using the
magic/heuristics again instead of the file format reader you previously chose.
Likewise, the Lua relaod() function has the same issue (which is how I found
this problem).
I have tested this change by hand, using a Lua script, but I didn't add it
to the testsuite because I need another change for my test script to work
correctly. (an enhancement rather than a bug fix, which I'll submit separately)
Change-Id: I48c2d9ea443e37fd9d41be43d6b6cd5a866d5b01
Reviewed-on: https://code.wireshark.org/review/764
Reviewed-by: Anders Broman <a.broman58@gmail.com>
This patch causes Wireshark/tshark to segfault if the file is reread(open a file and press reload).
The test suite also fails on
2.1.1 Step: Exit status for existing file: "/home/wireshark/builders/trunk/sol10sparc/build/test/captures/dhcp.pcap" must be 0/home/wireshark/builders/trunk/sol10sparc/build/test/suite-clopts.sh: line 149: 6646 Segmentation Fault (core dumped) $TSHARK -r "${CAPTURE_DIR}dhcp.pcap" > ./testout.txt 2>&1
OSX build bot chokes on
pcapng.c: In function 'pcapng_destroy_option_value':
pcapng.c:377: warning: implicit declaration of function 'g_byte_array_unref'
pcapng.c:379: warning: implicit declaration of function 'g_array_unref'
pcapng.c: In function 'pcapng_collect_block_option':
pcapng.c:419: warning: implicit declaration of function 'g_byte_array_new_take'
pcapng.c:419: warning: initialization makes pointer from integer without a cast
these functions are glib 2.22
This reverts commit 7b13a3b0f6.
Change-Id: Ia82fdb2d08287bc2cd2841e1e941ae68cbc2e009
Reviewed-on: https://code.wireshark.org/review/749
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Interface options[1], and more generally pcapng options[2], are useful
information that can provide improved dissector output.
Prior to this change, only certain pcapng interface options were interpreted
and made available to dissectors, e.g. the interface name or description.
This change augments the situation by providing epan_get_interface_option( ),
which returns an array of byte arrays if the option code exists
(otherwise NULL). Each element of the array is a byte buffer containing
the raw data of the option. An array-of-buffers is used because pcapng
allows for multiple instances of the same option to be present in the file.
All interface options found in a pcapng file are thus made available to the
dissector.
The implementation also provides infrastructure to collect options from
other pcapng blocks such as the section header. Currently these options
are discarded, but could be retained in the future to support more features.
[1] http://www.winpcap.org/ntar/draft/PCAP-DumpFileFormat.html#sectionidb
[2] http://www.winpcap.org/ntar/draft/PCAP-DumpFileFormat.html#sectionopt
Change-Id: I944b6f0f03dde9b8e7d1348b76acde6f9d312f37
Reviewed-on: https://code.wireshark.org/review/331
Reviewed-by: Anders Broman <a.broman58@gmail.com>
(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>
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
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
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
David Perry