wireshark.org protocol dissector with Osmocom additions
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João Valverde fee3901261 Fix indentation settings for "exceptions.h"
Also fix some small inconsistencies in indentation.
2023-09-15 14:40:05 +00:00
.github GitHub: Update MSYS2 action to build an NSIS installer 2023-08-28 11:00:17 +00:00
.gitlab/issue_templates Gitlab templates: Be more forceful asking for a capture 2023-04-22 04:47:15 +00:00
.tx Transifex: Fix our Debian/.po path. 2022-08-15 22:29:28 +00:00
capture capture child: send an errno message if exec of dumpcap fails. 2023-09-09 23:47:27 -07:00
cmake HTTP3: Use NG-HTTP3 to dissect headers. 2023-08-30 10:12:10 +00:00
doc Handle all valid time stamp resolutions with the -t flag. 2023-09-13 01:47:22 -07:00
docbook Update the Release Notes 2023-09-15 11:47:51 +00:00
epan Fix indentation settings for "exceptions.h" 2023-09-15 14:40:05 +00:00
extcap ciscodump: Keep strptime() behavior unchanged 2023-09-03 19:36:55 +01:00
fix FIX: fix spelling typo found by lintian 2016-11-02 14:03:52 +00:00
fuzz Move ui/cmdarg_err.[ch] to wsutil 2023-02-10 20:59:22 +00:00
include With -D, always let the user know if capture_interface_list() fails. 2023-08-27 17:20:12 -07:00
macosx-support-lib-patches macos-setup: fix building libssh 2023-09-14 11:00:51 +00:00
packaging macOS: Fix our dSYM dmgbuild configs 2023-09-14 15:11:38 -07:00
plugins stats_tree plugin: Add a TTL/Hop Limit stats tree 2023-09-06 15:02:02 +00:00
randpkt_core Don't include errno.h if we don't use errno or errno value definitions. 2023-06-26 16:07:23 -07:00
resources Build with NetBSD's strptime() 2023-09-03 18:05:59 +01:00
test test: Skip global name resolution tests on macOS 2023-09-14 18:34:05 -07:00
tools macos-setup: fix building opus 2023-09-14 11:00:51 +00:00
ui tap-httpstat: Free upon finishing 2023-09-14 03:05:01 +00:00
wiretap pcapng: improve handling of time stamp resolutions. 2023-09-14 23:14:58 +00:00
writecap Update a comment. [skip ci] 2023-06-22 15:15:11 -07:00
wsutil Cast away some warnings from Visual Studio, at least with some compiler flags. 2023-09-14 03:43:41 -07:00
.cirrus.yml cirrus: remove FreeBSD 11.4. 2020-12-18 23:20:34 +01:00
.editorconfig manuf: Drop Cavebear OUI list 2023-07-10 15:17:55 +01:00
.gitattributes tools: Port make-version.pl to Python 2022-07-11 14:44:23 +00:00
.gitignore Fix Debian packaging and remove stale references to "init.lua" 2023-08-25 13:52:47 +00:00
.gitlab-ci.yml .gitlab-ci.yml: Add --check-value-strings to tools/check_tfs.py call 2023-09-14 12:33:38 +00:00
.mailmap .mailmap: Update AUTHORS 2023-06-09 07:18:24 +00:00
.travis.yml CI: Don't run xcode-select. 2021-02-18 13:54:47 +00:00
AUTHORS [Automatic update for 2023-09-03] 2023-09-03 19:36:10 +00:00
CMakeGraphVizOptions.cmake cmake: Add CMakeGraphVizOptions.cmake to improve the generated layout. 2018-11-11 00:15:01 +00:00
CMakeLists.txt Build our releases without debug code 2023-09-15 10:59:58 +01:00
CMakeListsCustom.txt.example Demonstrate `CUSTOM_TSHARK_TAP_SRC` for CMake 2022-12-07 18:50:28 +00:00
CMakeOptions.txt Adding HTTP/3 dissection to Wireshark. 2023-08-30 10:12:10 +00:00
CODE_OF_CONDUCT.adoc Add a code of conduct. 2021-08-30 20:29:19 +00:00
CONTRIBUTING.md Add an initial CONTRIBUTING file. 2021-02-04 01:02:19 +00:00
COPYING Update license file structure and GUI display 2022-07-21 19:10:06 +00:00
ChangeLog Build: 4.1.0 2023-08-25 10:09:18 -07:00
ConfigCPack.cmake Add basic CPack support 2023-06-14 13:53:27 +01:00
ConfigureChecks.cmake Add a routine to format an nstime as an ISO 8601-style date/time. 2023-09-11 09:25:00 +00:00
INSTALL Fix our Debian build instructions 2023-06-26 16:40:37 +00:00
NEWS [Automatic update for 2023-09-10] 2023-09-10 16:23:37 +00:00
README.DECT Fix some spellings. 2022-07-06 09:02:37 +01:00
README.aix HTTPS In More Places, update some URLs. 2019-07-27 07:55:36 +00:00
README.bsd docs: Remove references to configure 2022-04-28 16:19:13 +00:00
README.hpux docs: Remove references to configure 2022-04-28 16:19:13 +00:00
README.linux Note that newer versions of various distributions won't have these problems. 2017-08-02 07:31:18 +00:00
README.macos Fix some spelling errors 2023-08-16 12:26:39 +01:00
README.md Make Perl optional. 2022-07-23 21:12:25 +00:00
README.msys2 Docs: Move MSYS2 instructions to WSDG 2023-05-25 16:49:06 +00:00
README.windows Windows: Get rid of textify.ps1. 2019-12-17 21:52:54 +00:00
Vagrantfile vagrant: Bump to Ubunutu 22.04, RAM to 8GB 2022-12-19 12:05:43 +00:00
WiresharkConfig.cmake.in CMake: Fix config package without installed plugins or extcaps 2023-06-17 11:09:30 +00:00
appveyor.yml appveyor: We no longer require Perl. 2022-07-24 23:47:53 +00:00
capinfos.c capinfos: Fix leak of packet comment data 2023-09-14 03:05:01 +00:00
capture_opts.c For capture options, provide a callback to use to fetch an interface list. 2023-08-28 00:06:01 -07:00
capture_opts.h For capture options, provide a callback to use to fetch an interface list. 2023-08-28 00:06:01 -07:00
captype.c Don't include errno.h if we don't use errno or errno value definitions. 2023-06-26 16:07:23 -07:00
cfile.c Remove editor modelines and .editorconfig exceptions from root files 2022-02-20 19:39:37 +00:00
cfile.h Add a capture file state for a pending read 2023-06-13 17:09:50 +00:00
cli_main.c cli-main.c: free() argv's memory 2020-12-12 17:29:57 +00:00
cli_main.h Add remaining header files to Doxygen 2021-12-12 03:56:35 +00:00
cmake_uninstall.cmake.in cmake: fix the uninstall script. 2021-09-11 15:21:19 -07:00
cmakeconfig.h.in Add a routine to format an nstime as an ISO 8601-style date/time. 2023-09-11 09:25:00 +00:00
dftest.c dftest: Use g_get_monotonic_time() instead of GTimer 2023-08-26 02:18:13 +00:00
doxygen.cfg.in Windows: Use SpeexDSP binary package 2022-12-16 11:11:28 +00:00
dumpcap.c wslog: Refactor the API with a msg manifest 2023-09-03 02:35:25 +00:00
editcap.c Change what iso8601_to_nstime() and unix_epoch_to_nstime() return. 2023-09-10 02:05:45 +00:00
extcap.c Don't pretend to return an error string from append_extcap_interface_list(). 2023-08-26 16:55:27 -07:00
extcap.h Don't pretend to return an error string from append_extcap_interface_list(). 2023-08-26 16:55:27 -07:00
extcap_parser.c Qt+extcap: Add editable extcap selectors. 2022-10-07 17:01:17 +00:00
extcap_parser.h Qt+extcap: Add editable extcap selectors. 2022-10-07 17:01:17 +00:00
file.c file: Fix leaks in Save As 2023-09-06 15:18:57 +00:00
file.h Don't include errno.h if we don't use errno or errno value definitions. 2023-06-26 16:07:23 -07:00
file_packet_provider.c regex: Prefer C99/POSIX types 2021-11-15 02:41:59 +00:00
fileset.c Replace g_strdup_printf() with ws_strdup_printf() 2021-12-19 21:21:58 +00:00
fileset.h Add remaining header files to Doxygen 2021-12-12 03:56:35 +00:00
frame_tvbuff.c Remove editor modelines and .editorconfig exceptions from root files 2022-02-20 19:39:37 +00:00
frame_tvbuff.h Remove editor modelines and .editorconfig exceptions from root files 2022-02-20 19:39:37 +00:00
globals.h Add remaining header files to Doxygen 2021-12-12 03:56:35 +00:00
mergecap.c Don't include errno.h if we don't use errno or errno value definitions. 2023-06-26 16:07:23 -07:00
mmdbresolve.c Don't include errno.h if we don't use errno or errno value definitions. 2023-06-26 16:07:23 -07:00
pytest.ini test: enable parallelism by default for pytest 2019-01-05 06:47:25 +00:00
randpkt.c randpkt: Support different capture formats, default to pcapng 2023-06-03 13:45:20 -04:00
rawshark.c Move the check for TS_PREC_NOT_SET out of timestamp_set_precision(). 2023-08-16 14:41:57 -07:00
reordercap.c Move ui/cmdarg_err.[ch] to wsutil 2023-02-10 20:59:22 +00:00
ringbuffer.c Remove wspcap.h and use config.h instead 2023-02-06 15:05:36 +00:00
ringbuffer.h Remove editor modelines and .editorconfig exceptions from root files 2022-02-20 19:39:37 +00:00
sharkd.c sharkd: Enable synchronous name resolution, including MaxMind GeoIP 2023-08-22 23:49:26 +00:00
sharkd.h Add remaining header files to Doxygen 2021-12-12 03:56:35 +00:00
sharkd_daemon.c Move ui/version_info.[ch] to wsutil 2023-02-07 23:17:37 +00:00
sharkd_session.c sharkd: Add "capture_types" and "encap_types" to "info" method 2023-08-23 11:58:21 +00:00
sync_pipe.h capture child: send an errno message if exec of dumpcap fails. 2023-09-09 23:47:27 -07:00
sync_pipe_write.c capture child: send an errno message if exec of dumpcap fails. 2023-09-09 23:47:27 -07:00
text2pcap.c Clean up the cleaning-up of wtap_dump_params structures. 2023-07-27 13:31:05 -07:00
text2pcap.h Add remaining header files to Doxygen 2021-12-12 03:56:35 +00:00
tfshark.c epan: Register dynamic column fields and make them filterable 2023-07-25 00:49:52 +00:00
tshark.c tshark: Fix --print-timers unit 2023-09-14 19:58:34 +01:00
vagrant_build.sh Vagrant: Fix provisioning script 2019-09-20 22:06:21 +00:00
wireshark.dox Switch the Doxygen API reference build to CMake. 2018-04-17 03:46:05 +00:00
wireshark.pc.in CMake: Deduplicate some version variables. 2022-06-07 16:04:17 -07:00
wka wka: Add Cisco ACI gleaning src MAC 2020-01-09 14:54:45 +00:00
ws_version.h.in plugins: Minor interface improvement 2018-08-21 19:56:12 +00:00


General Information

Wireshark is a network traffic analyzer, or "sniffer", for Linux, macOS, *BSD and other Unix and Unix-like operating systems and for Windows. It uses Qt, a graphical user interface library, and libpcap and npcap as packet capture and filtering libraries.

The Wireshark distribution also comes with TShark, which is a line-oriented sniffer (similar to Sun's snoop or tcpdump) that uses the same dissection, capture-file reading and writing, and packet filtering code as Wireshark, and with editcap, which is a program to read capture files and write the packets from that capture file, possibly in a different capture file format, and with some packets possibly removed from the capture.

The official home of Wireshark is https://www.wireshark.org.

The latest distribution can be found in the subdirectory https://www.wireshark.org/download


The Wireshark project builds and tests regularly on the following platforms:

  • Linux (Ubuntu)
  • Microsoft Windows
  • macOS / {Mac} OS X

Official installation packages are available for Microsoft Windows and macOS.

It is available as either a standard or add-on package for many popular operating systems and Linux distributions including Debian, Ubuntu, Fedora, CentOS, RHEL, Arch, Gentoo, openSUSE, FreeBSD, DragonFly BSD, NetBSD, and OpenBSD.

Additionally it is available through many third-party packaging systems such as pkgsrc, OpenCSW, Homebrew, and MacPorts.

It should run on other Unix-ish systems without too much trouble.

In some cases the current version of Wireshark might not support your operating system. This is the case for Windows XP, which is supported by Wireshark 1.10 and earlier. In other cases the standard package for Wireshark might simply be old. This is the case for Solaris and HP-UX.

Python 3 is needed to build Wireshark. AsciiDoctor is required to build the documentation, including the man pages. Perl and flex are required to generate some of the source code.

You must therefore install Python 3, AsciiDoctor, and GNU "flex" (vanilla "lex" won't work) on systems that lack them. You might need to install Perl as well.

Full installation instructions can be found in the INSTALL file and in the Developer's Guide at https://www.wireshark.org/docs/wsdg_html_chunked/

See also the appropriate README.OS files for OS-specific installation instructions.


In order to capture packets from the network, you need to make the dumpcap program set-UID to root or you need to have access to the appropriate entry under /dev if your system is so inclined (BSD-derived systems, and systems such as Solaris and HP-UX that support DLPI, typically fall into this category). Although it might be tempting to make the Wireshark and TShark executables setuid root, or to run them as root please don't. The capture process has been isolated in dumpcap; this simple program is less likely to contain security holes and is thus safer to run as root.

Please consult the man page for a description of each command-line option and interface feature.

Multiple File Types

Wireshark can read packets from a number of different file types. See the Wireshark man page or the Wireshark User's Guide for a list of supported file formats.

Wireshark can transparently read compressed versions of any of those files if the required compression library was available when Wireshark was compiled. Currently supported compression formats are:

  • GZIP
  • ZSTD
  • LZ4

You can disable zlib support by running cmake -DENABLE_ZLIB=OFF.

Although Wireshark can read AIX iptrace files, the documentation on AIX's iptrace packet-trace command is sparse. The iptrace command starts a daemon which you must kill in order to stop the trace. Through experimentation it appears that sending a HUP signal to that iptrace daemon causes a graceful shutdown and a complete packet is written to the trace file. If a partial packet is saved at the end, Wireshark will complain when reading that file, but you will be able to read all other packets. If this occurs, please let the Wireshark developers know at wireshark-dev@wireshark.org; be sure to send us a copy of that trace file if it's small and contains non-sensitive data.

Support for Lucent/Ascend products is limited to the debug trace output generated by the MAX and Pipline series of products. Wireshark can read the output of the wandsession, wandisplay, wannext, and wdd commands.

Wireshark can also read dump trace output from the Toshiba "Compact Router" line of ISDN routers (TR-600 and TR-650). You can telnet to the router and start a dump session with snoop dump.

CoSine L2 debug output can also be read by Wireshark. To get the L2 debug output first enter the diags mode and then use create-pkt-log-profile and apply-pkt-lozg-profile commands under layer-2 category. For more detail how to use these commands, you should examine the help command by layer-2 create ? or layer-2 apply ?.

To use the Lucent/Ascend, Toshiba and CoSine traces with Wireshark, you must capture the trace output to a file on disk. The trace is happening inside the router and the router has no way of saving the trace to a file for you. An easy way of doing this under Unix is to run telnet <ascend> | tee <outfile>. Or, if your system has the "script" command installed, you can save a shell session, including telnet, to a file. For example to log to a file named tracefile.out:

$ script tracefile.out
Script started on <date/time>
$ telnet router
..... do your trace, then exit from the router's telnet session.
$ exit
Script done on <date/time>

Name Resolution

Wireshark will attempt to use reverse name resolution capabilities when decoding IPv4 and IPv6 packets.

If you want to turn off name resolution while using Wireshark, start Wireshark with the -n option to turn off all name resolution (including resolution of MAC addresses and TCP/UDP/SMTP port numbers to names) or with the -N mt option to turn off name resolution for all network-layer addresses (IPv4, IPv6, IPX).

You can make that the default setting by opening the Preferences dialog using the Preferences item in the Edit menu, selecting "Name resolution", turning off the appropriate name resolution options, and clicking "OK".


Wireshark can do some basic decoding of SNMP packets; it can also use the libsmi library to do more sophisticated decoding by reading MIB files and using the information in those files to display OIDs and variable binding values in a friendlier fashion. CMake will automatically determine whether you have the libsmi library on your system. If you have the libsmi library but do not want Wireshark to use it, you can run cmake with the -DENABLE_SMI=OFF option.

How to Report a Bug

Wireshark is under constant development, so it is possible that you will encounter a bug while using it. Please report bugs at https://gitlab.com/wireshark/wireshark/-/issues. Be sure you enter into the bug:

  1. The complete build information from the "About Wireshark" item in the Help menu or the output of wireshark -v for Wireshark bugs and the output of tshark -v for TShark bugs;

  2. If the bug happened on Linux, the Linux distribution you were using, and the version of that distribution;

  3. The command you used to invoke Wireshark, if you ran Wireshark from the command line, or TShark, if you ran TShark, and the sequence of operations you performed that caused the bug to appear.

If the bug is produced by a particular trace file, please be sure to attach to the bug a trace file along with your bug description. If the trace file contains sensitive information (e.g., passwords), then please do not send it.

If Wireshark died on you with a 'segmentation violation', 'bus error', 'abort', or other error that produces a UNIX core dump file, you can help the developers a lot if you have a debugger installed. A stack trace can be obtained by using your debugger ('gdb' in this example), the wireshark binary, and the resulting core file. Here's an example of how to use the gdb command 'backtrace' to do so.

$ gdb wireshark core
(gdb) backtrace
..... prints the stack trace
(gdb) quit

The core dump file may be named "wireshark.core" rather than "core" on some platforms (e.g., BSD systems). If you got a core dump with TShark rather than Wireshark, use "tshark" as the first argument to the debugger; the core dump may be named "tshark.core".


Wireshark is distributed under the GNU GPLv2. See the file COPYING for the full text of the license. When in doubt the full text is the legally binding part. These notes are just to make it easier for people that are not familiar with the GPLv2.

There are no restrictions on its use. There are restrictions on its distribution in source or binary form.

Most parts of Wireshark are covered by a "GPL version 2 or later" license. Some files are covered by different licenses that are compatible with the GPLv2.

As a notable exception, some utilities distributed with the Wireshark source are covered by other licenses that are not themselves directly compatible with the GPLv2. This is OK, as only the tools themselves are licensed this way, the output of the tools is not considered a derived work, and so can be safely licensed for Wireshark's use. An incomplete selection of these tools includes:

  • the pidl utility (tools/pidl) is licensed under the GPLv3+.

Parts of Wireshark can be built and distributed as libraries. These parts are still covered by the GPL, and NOT by the Lesser General Public License or any other license.

If you integrate all or part of Wireshark into your own application, then that application must be released under a license compatible with the GPL.


There is no warranty, expressed or implied, associated with this product. Use at your own risk.

Gerald Combs gerald@wireshark.org

Gilbert Ramirez gram@alumni.rice.edu

Guy Harris gharris@sonic.net