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path: root/capchild/capture_sync.c
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2015-11-17Create C handles for pipes before running dumpcap.Guy Harris1-39/+90
If the C handles can't be created, there's no point in running dumpcap. Catch some more possible _open_osfhandle() failures while we're at it. Change-Id: I2b955378705fc932f8d383804e908e95a957be44 Ping-Bug: 11702 Reviewed-on: https://code.wireshark.org/review/11890 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>
2015-11-16Catch failure of _open_osfhandle().Guy Harris1-0/+24
This may at least prevent the crash in bug 11702, by not returning "success" with bogus file handles of -1, if the opens fail due to leaks chewing up all the available slots. More investigation needs to be done to see why we're leaking. Change-Id: I89ecff4b03bca140f05c838e1e2604a03409f803 Ping-Bug: 11702 Reviewed-on: https://code.wireshark.org/review/11881 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>
2015-11-07Clean up includes of unistd.h, fcntl.h, and sys/stat.h.Guy Harris1-8/+0
Have wsutil/file_util.h include them on UN*X, just as it includes io.h on Windows, so we can have a rule of "if you do file operations, include <wsutil/file_util.h> and use the routines in it". Remove includes of unistd.h, fcntl.h, and sys/stat.h that aren't necessary (whether because of the addition of them to wsutil/file_util.h or because they weren't needed in the first place). Change-Id: Ie241dd74deff284e39a5f690a297dbb6e1dc485f Reviewed-on: https://code.wireshark.org/review/11619 Petri-Dish: Guy Harris <guy@alum.mit.edu> Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-07-22Fix retrieval of data link type supported by remote interfaces with ↵Pascal Quantin1-1/+5
authentication Make use of -A parameter when querying data link types supported by a given interface with dumpcap. Ensure to pass the authentication parameters configured for a remote interface when calling capture_get_if_capabilities() Bug: 11366 Change-Id: I4efea615084a82108e4a12a64e8c46817f30a5c6 Reviewed-on: https://code.wireshark.org/review/9690 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> Reviewed-by: Anders Broman <a.broman58@gmail.com>
2015-06-29capchild: fix uninitialized data pointer on failurePeter Wu1-0/+1
Fixes a crash / heisenbug in wireshark-qt on startup: ==26808==ERROR: AddressSanitizer: attempting free on address which was not malloc()-ed: 0x7fff8cf3bf70 in thread T0 #0 0x7f42ce3b66da in __interceptor_free /build/gcc-multilib/src/gcc-5-20150519/libsanitizer/asan/asan_malloc_linux.cc:28 #1 0x842847 in WirelessFrame::setChannel() ui/qt/wireless_frame.cpp:257 #2 0x842bf5 in WirelessFrame::on_channelComboBox_activated(int) ui/qt/wireless_frame.cpp:282 #3 0x84407d in WirelessFrame::timerEvent(QTimerEvent*) ui/qt/wireless_frame.cpp:134 #4 0x7f42ba94ea92 in QObject::event(QEvent*) (/usr/lib/libQt5Core.so.5+0x2b0a92) #5 0x7f42bb6218ea in QWidget::event(QEvent*) (/usr/lib/libQt5Widgets.so.5+0x1948ea) #6 0x7f42bb71c16d in QFrame::event(QEvent*) (/usr/lib/libQt5Widgets.so.5+0x28f16d) #7 0x7f42bb5df62b in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x15262b) #8 0x7f42bb5e4d0f in QApplication::notify(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x157d0f) #9 0x7f42ba91d57a in QCoreApplication::notifyInternal(QObject*, QEvent*) (/usr/lib/libQt5Core.so.5+0x27f57a) #10 0x7f42ba973b1c in QTimerInfoList::activateTimers() (/usr/lib/libQt5Core.so.5+0x2d5b1c) #11 0x7f42ba974020 (/usr/lib/libQt5Core.so.5+0x2d6020) #12 0x7f42cdde7a16 in g_main_context_dispatch (/usr/lib/libglib-2.0.so.0+0x49a16) #13 0x7f42cdde7c6f (/usr/lib/libglib-2.0.so.0+0x49c6f) #14 0x7f42cdde7d1b in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x49d1b) #15 0x7f42ba974cfe in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2d6cfe) #16 0x56c8ba in main_window_update wireshark-qt.cpp:128 #17 0xe4b612 in sync_pipe_open_command capchild/capture_sync.c:972 #18 0xe4b823 in sync_pipe_run_command_actual capchild/capture_sync.c:1034 #19 0xe4c590 in sync_pipe_run_command capchild/capture_sync.c:1211 #20 0xe4e9a5 in sync_if_capabilities_open capchild/capture_sync.c:1356 #21 0xe48b7a in capture_get_if_capabilities capchild/capture_ifinfo.c:249 #22 0xdf539a in scan_local_interfaces ui/iface_lists.c:186 #23 0xdf6a65 in fill_in_local_interfaces ui/iface_lists.c:405 #24 0x56e49d in main wireshark-qt.cpp:1154 #25 0x7f42b81c178f in __libc_start_main (/usr/lib/libc.so.6+0x2078f) #26 0x56ba58 in _start (wireshark+0x56ba58) AddressSanitizer can not describe address in more detail (wild memory access suspected). SUMMARY: AddressSanitizer: bad-free /build/gcc-multilib/src/gcc-5-20150519/libsanitizer/asan/asan_malloc_linux.cc:28 __interceptor_free Change-Id: I63744261096b3cfd0eddcf75bcf85103a3f0788d Reviewed-on: https://code.wireshark.org/review/9220 Reviewed-by: Peter Wu <peter@lekensteyn.nl>
2015-06-10Squelch some type-clash warnings on Windows.Guy Harris1-10/+10
Define WS_INVALID_PID to be the appropriate "there is no process" value. On UN*X, -1 works; the "pid" is actually a HANDLE for the process on Windows, so INVALID_HANDLE is appropriate. Cast HANDLE to intptr_t in the _cwait() call. Change-Id: Ica2d2319f5c95ba41f590776a745fe040fe494d2 Reviewed-on: https://code.wireshark.org/review/8871 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-06-10Use pid_t on UN*X, and HANDLE on Windows, for the process ID.Guy Harris1-12/+12
This avoids type punning; at least with Xcode 7 beta on El Capitan beta, that produces warnings that get turned into errors. Change-Id: I57f47455b9630f359828c07c92a190b5cb33816f Reviewed-on: https://code.wireshark.org/review/8862 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-06-09[MSVC 2015] Use intptr_t for "pointer stored as int" to make MSVC happy.Anders1-14/+15
Change-Id: I5dbbea8527a8bb73b17e5a8a5611c3923d82459c Reviewed-on: https://code.wireshark.org/review/8852 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>
2015-05-19Fix typo.Guy Harris1-2/+2
Change-Id: Idde2f4771b42714561f65f712e680f9609aeaa57 Reviewed-on: https://code.wireshark.org/review/8535 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-05-19Pass the executable path to CreateProcess(), and end it with ".exe".Guy Harris1-3/+7
On Windows, 1) pass the path of the executable as the first argument to CreateProcess(), which requires that we 2) have that path end with ".exe. Maybe it'll fix the searching-for-dumpcap that showed up in bug 11196. Change-Id: I9d06c07c3513fd42b98d3f8d9a1d2d545f651fe2 Reviewed-on: https://code.wireshark.org/review/8534 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-04-06Keep a captured-packet count in a capture_session and use that.Guy Harris1-0/+2
Have the count in a cfile_t structure always reflect the actual number of packets that have been read from the file, rather than, when doing a non-update-list-of-packets-in-real-time capture, falsely increasing the count in the cfile_t to reflect the number of packets captured but not yet read. Have the status bar base its captured-packet count on the count in the capture_session structure, and base the "sorry, no packets were captured" message on the count in the capture_session structure, as we're no longer using the count in the cfile_t structure to count anything in the process of a non-update-list-of-packets-in-real-time capture. That way, we preserve the invariant that the "frames" member of a cfile_t will be non-null if the "count" member is non-zero, fixing bug 6217. It also means we can get rid of cf_set_packet_count(), as we only set the count in the capture-file-reading code. Bug: 6217 Change-Id: I72c0e2c07c30782bad777995370b7c19e1460cc2 Reviewed-on: https://code.wireshark.org/review/7950 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-03-25Have a #define for whether the capture buffer size can be set.Guy Harris1-2/+2
It can be set if either 1) this is Windows (where we're assumed to be using WinPcap, which includes calls to set the buffer size) or 2) we have pcap_create() (in which case we also have pcap_set_buffer_size(), at least in a normal libpcap release). Use that rather than testing "defined(_WIN32) || defined(HAVE_PCAP_CREATE)"; that makes it a bit more obvious what's being tested. Change-Id: Id9f8455019d19206b04dd6820a748cb97ae5ad12 Reviewed-on: https://code.wireshark.org/review/7816 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-03-16Fix for waitpid return EINTR sometimes on launch.Vik1-29/+38
The return of EINTR is not exactly a failure of child process but may be because of any number of reasons. Adding logic to retry to get status of child process. Bug: 10889 Change-Id: Ic2de7248cb7bd9c801b917c841ce911fb7c17dcc Reviewed-on: https://code.wireshark.org/review/7669 Petri-Dish: Graham Bloice <graham.bloice@trihedral.com> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Anders Broman <a.broman58@gmail.com>
2015-01-13Consistently use the "g_string_free returns a C string pointer" idiom.Guy Harris1-2/+1
g_string_free(str, FALSE) frees the GString container but not the underlying g_malloc()ed string; instead, it returns a pointer to the g_malloc()ed string. Fix those places that didn't already get the string pointer from g_string_free() to do so rather than manually extracting the string themselves. And fix one place that didn't even need to use a string - it was just scanning a C string without even modifying it. Change-Id: Ibbf4872bf5b9935b9907f539b6edb1013f3053a5 Reviewed-on: https://code.wireshark.org/review/6532 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-20Qt: Add a CaptureFile class.Gerald Combs1-1/+1
Wrap the capture_file struct in a QObject which translates cf_cb_* and capture_cb_* events into signals. Move the global cfile to capture_file.cpp. Don't use a void pointer for the capture file struct. Change-Id: Ic5d5efb4bb1db64aa0247245890e5669b1da723a Reviewed-on: https://code.wireshark.org/review/5885 Petri-Dish: Gerald Combs <gerald@wireshark.org> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Gerald Combs <gerald@wireshark.org>
2014-10-17Get rid of unnecessary include of ctype.h.Guy Harris1-1/+0
Change-Id: Ib83e707ebbbb420ce269a652ede6b7366d24240e Reviewed-on: https://code.wireshark.org/review/4792 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-09-16Fix spelling: cant-->can't, wont-->won't, etcBill Meier1-1/+1
Change-Id: Ia6c3e7a25615bf8e052c3bacf096d76df775c9c2 Reviewed-on: https://code.wireshark.org/review/4126 Reviewed-by: Bill Meier <wmeier@newsguy.com>
2014-08-21Extcap Capture InterfaceRoland Knall1-6/+46
Extcap is a plugin interface, which allows for the usage of external capture interfaces via pipes using a predefined configuration language which results in a graphical gui. This implementation seeks for a generic implementation, which results in a seamless integration with the current system, and does add all external interfaces as simple interfaces. Windows Note: Due to limitations with GTK and Windows, a gspawn-winXX-helper.exe, respective gspawn-winXX-helper-console.exe is needed, which is part of any GTK windows installation. The default installation directory from the build is an extcap subdirectory underneath the run directory. The folder used by extcap may be viewed in the folders tab of the about dialog. The default installation directory for extcap plugins with a pre-build or installer version of wireshark is the extcap subdirectory underneath the main wireshark directory. For more information see: http://youtu.be/Nn84T506SwU bug #9009 Also take a look in doc/extcap_example.py for a Python-example and in extcap.pod for the arguments grammer. Todo: - Integrate with Qt - currently no GUI is generated, but the interfaces are still usable Change-Id: I4f1239b2f1ebd8b2969f73af137915f5be1ce50f Signed-off-by: Mike Ryan <mikeryan+wireshark@lacklustre.net> Signed-off-by: Mike Kershaw <dragorn@kismetwireless.net> Signed-off-by: Roland Knall <rknall@gmail.com> Reviewed-on: https://code.wireshark.org/review/359 Petri-Dish: Michael Mann <mmann78@netscape.net> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Michael Mann <mmann78@netscape.net>
2014-07-04Move utility routines for capturing into a libcaputils static library.Guy Harris1-2/+2
Some of those routines are used only in dumpcap; others are used in TShark and Wireshark as well. Change-Id: I9d92483f2fcff57a7d8b6bf6bdf2870505d19fb7 Reviewed-on: https://code.wireshark.org/review/2841 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-06-30Move capture.[ch] to libui.Guy Harris1-1/+1
Change-Id: I86e7e781cc9e14abab0374a18b95438529b046f0 Reviewed-on: https://code.wireshark.org/review/2711 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-06-24For capchild headers, include <capchild/XXX.h>.Guy Harris1-1/+1
Change-Id: I780c69ee637dcd9846756a2e2d6a35baf02d826d Reviewed-on: https://code.wireshark.org/review/2594 Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-06-23Move the routines to talk to dumpcap into a static libcapchild.Guy Harris1-0/+2127
This pulls some stuff out of the top-level directory, and means we don't have to build them once for every program using them. Change-Id: I37b31fed20f2d5c3563ecd2bae9fd86af70afff5 Reviewed-on: https://code.wireshark.org/review/2591 Reviewed-by: Guy Harris <guy@alum.mit.edu>
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