Fix assorted memory leaks. Note that _tool_for_ifname is cleaned up at
exit by extcap_cleanup, but lacked key/value destructors, so add them.
After this, ASAN reports no more extcap memleaks.
Change-Id: Ie5f4b1e2453a0beb52d617670202973839ca1416
Reviewed-on: https://code.wireshark.org/review/22466
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>
Change-Id: I13e6a465b0e169f2f4ce134df3c873c416737b33
Reviewed-on: https://code.wireshark.org/review/21476
Petri-Dish: Martin Mathieson <martin.r.mathieson@googlemail.com>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
The data parameter is used, remove the _U_ qualifier.
Change-Id: I3a3935bae958103da1a7a1abe0636e4781424aa7
Reviewed-on: https://code.wireshark.org/review/21408
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
An extcap utility can provide configuration for controls to use in a
GUI interface toolbar. This controls are bidirectional and can be
used to control the extcap utility while capturing.
This is useful in scenarios where configuration can be done based on
findings in the capture process, setting temporary values or give other
inputs without restarting current capture.
Todo:
- Add support for Windows
Change-Id: Ie15fa67f92eb27d8b73df6bb36f66b9a7d81932d
Reviewed-on: https://code.wireshark.org/review/19982
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
found by valgrind
Change-Id: I8c5226a08be797ce72ec937138a6681d946fb13c
Reviewed-on: https://code.wireshark.org/review/20720
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Directories, and non-executable files, aren't going to be extcap
executables.
This may not make much of a difference for an installed version of
Wireshark, but it makes a difference if you're running from the build
directory.
Change-Id: Ib9953fa04392dc7a8420ddf28bab9726e6050c12
Reviewed-on: https://code.wireshark.org/review/20752
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Add method for searching for tools by ifname and minor improvements
in the interface callback to save time and space
Change-Id: I0073c96fbee846cc5ff6304823fa14564ff36c22
Reviewed-on: https://code.wireshark.org/review/20376
Petri-Dish: Roland Knall <rknall@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
To ease development of callbacks and new parameters,
move all parameters for the callback methods to a
struct
Change-Id: I160277acf4d0473897172124f7c7aa744718da9c
Reviewed-on: https://code.wireshark.org/review/20316
Petri-Dish: Roland Knall <rknall@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Reduce the number of storage arrays and the number
of necessary loads. Also include cleaner methods for
reloading the interfaces and cleanly reload if asked by
the overall system
Change-Id: I529465ec2593d40c955c6cdeaf3a85e3021c0596
Reviewed-on: https://code.wireshark.org/review/20230
Petri-Dish: Roland Knall <rknall@gmail.com>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Move "struct preference" into prefs.c, essentially creating a "private"
structure to handle preferences. The 2 motivating factors were:
1. Better memory management so that clients/users of API don't have to worry
about it.
2. Hide the ugliness of the union stuff and make it transparent to the API.
A few bugs related to preference <-> Decode As integration were fixed
while in the neighborhood.
Change-Id: I509b9a236235d066b139c98222b701475e0ed365
Reviewed-on: https://code.wireshark.org/review/19578
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Change-Id: Ie68a5c6c193f362e78d4f4b1f20edf7747e2313f
Reviewed-on: https://code.wireshark.org/review/19614
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
The GTK+ version, at least, crashes if there are more "doing XXX..."
items put up than the calculated count, so, now that we're putting up
items for extcap binaries, we need to count the extcap binaries.
Clean up some stuff we found doing this (indentation, a _U_ on something
that's used).
Change-Id: I1f88042b64ce4b9ae352de37689677c694e3770b
Reviewed-on: https://code.wireshark.org/review/19549
Reviewed-by: Guy Harris <guy@alum.mit.edu>
The help statement is in the first sentence, while interfaces are
in others. We need to keep state of it.
Ping-Bug: 13218
Change-Id: Iad1d403d5e8bc34e2489daaa3b14d469d5ee5b5b
Reviewed-on: https://code.wireshark.org/review/19148
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Cleanup code to use uniform whitespace to make it more readable.
Also added brackets to unbracketed one line conditional statements.
This was done using "astyle -A1cHjk3pU".
Change-Id: Iebe96c488c843ce1d790ede0016eb9df025e98a5
Reviewed-on: https://code.wireshark.org/review/19133
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Michael Mann <mmann78@netscape.net>
And some comments in the case where we're converting the result of
time() - if your machine's idea of time predates January 1, 1970,
00:00:00 UTC, it'll crash on Windows, but that's not a case where a
*file* can cause the problem due either to a bad file time stamp or bad
time stamps in the file.
Change-Id: I837a438e4b875dd8c4f3ec2137df7a16ee4e9498
Reviewed-on: https://code.wireshark.org/review/18369
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Launching USBPcap without going in the interface options menu exhibits 2 bugs:
- we should restore a value only if it is not an empty string (otherwise USBPcap with an ampty --devices multicheck argument)
- when building the argument list for a non boolean argument not using the default value, do not call g_strconcat. It will
build a string concatenating the option and value (for example "--devices 1" that will be treated as a single argument).
Instead option and value must be given separately to argument list.
Bug: 12846
Change-Id: I5628cb264a7632089e6579e9ae7400e2c0e500e2
Reviewed-on: https://code.wireshark.org/review/17773
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
All strings passed to prefs must be valid for the lifetime of the
program (before prefs_cleanup is called). Use wmem for this purpose.
Fixes v2.3.0rc0-660-g26bf66f
Change-Id: I94f3bbb8ac6e18ae59d6462525f6bbc46fdb0f1f
Reviewed-on: https://code.wireshark.org/review/17737
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Fix leak of the preference key name which happen for every new extcap
argument. Fix leak of extcap arguments and the interface names in
extcap_register_preferences.
Change-Id: Idd68f924baa000303043cb98b32b23ce34fddb64
Reviewed-on: https://code.wireshark.org/review/17637
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Valgrind reports plenty of misc memory leaks in extcap after the network
interface list has changed or is refreshed. Errors can be seen by
starting Wireshark with Valgrind's memcheck tool and bringing a network
interface up and down a few times with:
ifconfig eth0 up
ifconfig eth0 down
Change-Id: I90f53847071854b7d02facb39b7a380732de79b4
Reviewed-on: https://code.wireshark.org/review/17606
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
In commit v2.3.0rc0-117-g485bc45 (backported to v2.2.0rc0-44-g66721ca),
extcap_prefs_dynamic_vals and extcap_cleanup were added in an attempt to
address dangling pointers.
Unfortunately it is not sufficient:
- A pointer to the preference value is stored in extcap_arg and passed
to the prefs API, but this extcap_arg structure can become invalid
which result in use-after-free whenever the preference is accessed.
- On exit, a use-after-free occurs in prefs_cleanup when the preference
value is being checked.
As the preference subsystem actually manages the memory for the string
value and consumers should only provide a pointer where the value can be
stored, convert the char* field in extcap to char**. This has as
additional benefit that values are not limited to 256 bytes anymore.
extcap_cleanup is moved after epan_cleanup to ensure that prefs_cleanup
does not operate on dangling pointers.
Crash is reproducible under ASAN with: tshark -i randpkt
Ping-Bug: 12183
Change-Id: Ibf1ba1102a5633aa085dc278a12ffc05a4f4a34b
Reviewed-on: https://code.wireshark.org/review/17631
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Allow the tool to provide a link to a helppage, displayed
by clicking on help in the configuration dialog.
The URL will be opened using an URL based service, therefore local
as well as remote URLs are possible.
Change-Id: I58b30244e97919d5cf6892faf96536ddc30fb5a7
Reviewed-on: https://code.wireshark.org/review/17549
Reviewed-by: Roland Knall <rknall@gmail.com>
Replace the error-prone next/prev handling with GList and GHashTable
Cleanup extcap_parser to only expose necessary functions
Remove token know-how from extcap
Change-Id: I7cc5ea06f58ad6c7a85ac292f5d2cb3d33e59833
Reviewed-on: https://code.wireshark.org/review/17496
Reviewed-by: Anders Broman <a.broman58@gmail.com>
This chage set restores the normalization that was done before g485bc45.
Without it, USBPcap extacp utility triggers a crash.
Change-Id: Id960db186888452ec3d04df1ee48dcc3899e8951
Reviewed-on: https://code.wireshark.org/review/16871
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Includes are needed for using macros like WIFEXITED.
Change-Id: Ia09ca58eeab2d151a756d285b0aeb55141c4d24a
Reviewed-on: https://code.wireshark.org/review/16841
Reviewed-by: Michael Tüxen <tuexen@wireshark.org>
This function is not supported in the min GLIB version, therefore
the code is to be removed
Change-Id: Ie39170bfc0662e5a477cbc45d7eadebcf2c70d4e
Reviewed-on: https://code.wireshark.org/review/16827
Petri-Dish: Roland Knall <rknall@gmail.com>
Reviewed-by: Dario Lombardo <lomato@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
This patch reads out the stderr messages from an extcap
utility and displays it to an user. It was tested on Qt
but not on GTK, but should work their as well.
On Mac OS/X and Windows the child_watch does not behave
as it was intended. Therefore in extcap_cleanup, the callbacks
are called manually, if and only if, they have not been
called already.
The reason why it displays two error messages is, that
by the time the first one is being displayed, glib has not
returned from the spawned process on Linux yet. So there
is no way to add the stderr correctly, and putting a handler
to stderr into interface_opts will lead to memory errors,
cause then the code tries to access memory outside of its
protection.
Bug: 11892
Change-Id: I2db60dd480fed3e01428b91a705057e4f088bd15
Reviewed-on: https://code.wireshark.org/review/12954
Reviewed-by: Roland Knall <rknall@gmail.com>
Petri-Dish: Roland Knall <rknall@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Dario Lombardo <lomato@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Allow stored options to be restored to their default values. This
adds a global cleanup method for extcap and globally defined
preference values, which fixes the parameter problem with windows
Change-Id: I48e0cf846ef81f4732d652c6a2ad0020db5df08e
Reviewed-on: https://code.wireshark.org/review/13741
Petri-Dish: Roland Knall <rknall@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Move g_spawn to separate file and implement functions to
use Windows based method of spawning, instead of the glib
based version
Change-Id: Ibae03d834ec86531eba37dc8768fbf17ddadf57f
Reviewed-on: https://code.wireshark.org/review/16049
Petri-Dish: Roland Knall <rknall@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Graham Bloice <graham.bloice@trihedral.com>
Reviewed-by: Roland Knall <rknall@gmail.com>
Ping-Bug: 10203
Change-Id: Ifa24870d711449b87e9839dd46af614e4aa28fde
Reviewed-on: https://code.wireshark.org/review/15608
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Martin Mathieson <martin.r.mathieson@googlemail.com>
Use libSSH 0.7.2 compiled with MinGW(32|64) and linked with zlib and gcrypt support
Change-Id: I7c17d1ba3dd1890e2f83c119f5ea851834807e43
Reviewed-on: https://code.wireshark.org/review/12117
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Change-Id: I849b16597829212b195bd75a2aab8e1db49f1ccf
Reviewed-on: https://code.wireshark.org/review/14827
Reviewed-by: Roland Knall <rknall@gmail.com>
Petri-Dish: Roland Knall <rknall@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Using cmake -DENABLE_EXTCAP=no or ./configure --without-extcap.
Some documentation fixes too.
Change-Id: Iebf9c843d67e10a32de1a62904de8f88b872ec99
Reviewed-on: https://code.wireshark.org/review/14522
Petri-Dish: João Valverde <j@v6e.pt>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: João Valverde <j@v6e.pt>
Pull the "rebuild the list of extcap interfaces and, optionally, return
a list of if_infos for them" into a separate
extcap_reload_interface_list() routine, call it in the cases where we
don't want the if_infos list, and have append_extcap_interface_list()
call it, asking it for the if_infos list, and then append the interfaces
to that list.
Change-Id: I07478ab133859484b3e0916144971639f961224b
Reviewed-on: https://code.wireshark.org/review/14189
Reviewed-by: Guy Harris <guy@alum.mit.edu>
The list should start with the native local interfaces, as returned by
pcap, so that we default to the interface pcap gives first, rather than
to whatever extcap interface happens to be at the beginning.
This also means that, if we're only calling extcap_interface_list() to
regenerate our internal data structures, we don't bother allocating -
and leaking! - a list of if_info structures.
Change-Id: Ida651b5b081883f118a300b9f57403f2dc5c4363
Ping-Bug: 12183
Reviewed-on: https://code.wireshark.org/review/14187
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Just do it upfront.
Change-Id: I5305882b8efd080fcb3e8ea626e09f4682729702
Reviewed-on: https://code.wireshark.org/review/14185
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Child watch seems to keep executables in limbo, if extcap_cleanup
removed the watch before it could be fired at least once
Bug: 12080
Change-Id: I74afafe8545d464ec08b1043a6377a6450e4c772
Reviewed-on: https://code.wireshark.org/review/13900
Petri-Dish: Roland Knall <rknall@gmail.com>
Reviewed-by: Michal Labedzki <michal.labedzki@tieto.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Preferences are only allowed to contain lowercase ASCII letters,
numbers, underscores or dot characters. Create a utility function
to convert an extcap setting to its equivalent preference key and
use it wherever conversion from setting to preference key is needed.
Bug: 12064
Change-Id: I39bbac7de5f0f905bd41c54257fa997a3b32442d
Reviewed-on: https://code.wireshark.org/review/13687
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Valgrind reports leaks like these when spawning extcap processes (for
example when displaying or refreshing interface list with extcap
interfaces present):
3,917 (464 direct, 3,453 indirect) bytes in 29 blocks are definitely lost in loss record 58,301 of 58,638
at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
by 0xA6D2610: g_malloc (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4002.0)
by 0xA6E822D: g_slice_alloc (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4002.0)
by 0xA6B913B: g_error_new_valist (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4002.0)
by 0xA6B94ED: g_set_error (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4002.0)
by 0xA710B03: ??? (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4002.0)
by 0xA710E17: g_spawn_sync (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4002.0)
by 0x44C677: extcap_foreach (extcap.c:199)
by 0x44CCAD: extcap_interface_list (extcap.c:413)
by 0x72B548: capture_interface_list (capture_ifinfo.c:126)
by 0x7336FA: scan_local_interfaces (iface_lists.c:141)
by 0x55F01F: WiresharkApplication::refreshLocalInterfaces() (wireshark_application.cpp:898)
...
Change-Id: If8f750f5f8fa42a6f0884bb0e6bbbd71bd8f68aa
Reviewed-on: https://code.wireshark.org/review/13631
Petri-Dish: Roland Knall <rknall@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Also add check to has_configuration
Change-Id: Ia0ffbd3bf68ad51c26bc75b5ee179db179e22bd4
Reviewed-on: https://code.wireshark.org/review/13635
Reviewed-by: Roland Knall <rknall@gmail.com>
Peter Wu