wireshark.org protocol dissector with Osmocom additions
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Dario Lombardo ee0dc72084
file_packet_provider: fix constness in declaration.
1 year ago
.github github: update windows action. 2 years ago
.gitlab/issue_templates Gitlab Issue Template: Add label via quick action 2 years ago
.tx Qt: Add Spanish (es) translation assets. 3 years ago
capture Clean up handling of --capture-comment. 2 years ago
cmake/modules CMake: include CheckFunctionExists in FindKERBEROS.cmake 2 years ago
debian [#17478] free blocks in more places 2 years ago
diameter Diameter:Update some AVPs and enums. 2 years ago
doc editcap doc: Fix description of split output file names 2 years ago
docbook Fix some docbook spellings. 1 year ago
dtds HTTPS In More Places, update some URLs. 4 years ago
epan ORAN: Decompress block floating point numbers (used in ext11). 1 year ago
extcap androiddump: get the WIRESHARK_UPPER_PDU tags from the header. 1 year ago
fuzz Move version_info.[ch] to ui/ 2 years ago
idl HTTPS In More Places, update some URLs. 4 years ago
image Fix the captions for the buttons in the "export specified packets" dialog. 2 years ago
packaging NSIS: Add DPI awareness 2 years ago
plugins Some more dissector spellings. 2 years ago
profiles [Automatic update for 2021-05-09] 2 years ago
protobuf Add SparkplugB dissector 2 years ago
radius RADIUS: update dictionary 3GPP with new 5G AVPs 2 years ago
randpkt_core Replace g_log() calls with ws_log() 2 years ago
speexdsp CMake: Check for and use system SpeexDSP library 4 years ago
test Carry drop count/packet ID/queue ID as options on packet block 2 years ago
tools Fix some docbook spellings. 1 year ago
tpncp TPNCP: Initial support for "Since" version 2 years ago
ui RTP Player: Fix of resampling for visual waveform 1 year ago
wiretap Move LINKTYPE_WIRESHARK_UPPER_PDU definitions to a separate header. 1 year ago
writecap Clean up handling of --capture-comment. 2 years ago
wsutil Fix some issues with Exported PDUs. 1 year ago
.cirrus.yml cirrus: remove FreeBSD 11.4. 2 years ago
.editorconfig Miscellaneous EditorConfig fixes 2 years ago
.gitattributes version: include version information for tarballs from git 4 years ago
.gitignore Add /*build*/ to .gitignore 2 years ago
.gitlab-ci.yml Docs: Give the PDF and EPUB guides descriptive filenames. 2 years ago
.mailmap .mailmap: Update email after 2 years ago
.travis.yml CI: Don't run xcode-select. 2 years ago
AUTHORS [Automatic update for 2021-08-15] 1 year ago
AUTHORS.src Change my email address 2 years ago
CMakeLists.txt CMake: Make LTO default off, restrict to release build 2 years ago
CMakeListsCustom.txt.example HTTPS (almost) everywhere. 4 years ago
CMakeOptions.txt CMake: Make LTO default off, restrict to release build 2 years ago
CONTRIBUTING.md Add an initial CONTRIBUTING file. 2 years ago
ChangeLog Build: 3.3.1. 2 years ago
ConfigureChecks.cmake CMake: Remove no-longer-used checks. 2 years ago
INSTALL Clean up URLs. 2 years ago
NEWS [Automatic update for 2021-08-15] 1 year ago
README.aix HTTPS In More Places, update some URLs. 4 years ago
README.bsd More Qt minimum version updates. 3 years ago
README.hpux HTTPS In More Places, update some URLs. 4 years ago
README.macos macOS: Remove more obsolete documentation 3 years ago
README.md wiretap: Convert ascend.y to Lemon. 2 years ago
README.windows Windows: Get rid of textify.ps1. 3 years ago
Vagrantfile Bump Ubuntu version to 18.04 in Vagrantfile 4 years ago
appveyor.yml appveyor: upload installer artifacts for development branches 4 years ago
capinfos.c [#17478] free blocks in more places 2 years ago
capture_opts.c Clean up handling of --capture-comment. 2 years ago
capture_opts.h Clean up handling of --capture-comment. 2 years ago
captype.c Move version_info.[ch] to ui/ 2 years ago
cfile.c Remove unnecessary inclues of wiretap/pcapng.h. 2 years ago
cfile.h Change "edited" to "modified" in one more place when referring to blocks. 2 years ago
cli_main.c cli-main.c: free() argv's memory 2 years ago
cmakeconfig.h.in CMake: Remove some unused definitions 2 years ago
colorfilters Remove keep alives from "Bad TCP" coloring rules 3 years ago
dfilter_macros ship the dfilter_macros file. 4 years ago
dftest.c wslog: Check environment initialization for errors 2 years ago
doxygen.cfg.in Update doxygen config to 1.8.17 3 years ago
dumpcap.c dumpcap: clean up capture device open errors. 2 years ago
editcap.c editcap: if -T was specified, change the linktype of all interfaces. 2 years ago
enterprises.tsv [Automatic update for 2021-08-15] 1 year ago
extcap.c Move version_info.[ch] to ui/ 2 years ago
extcap.h extcap(.h): fix empty paragraph passed to '@return' command [-Wdocumentation] 3 years ago
extcap_parser.c extcap: Fix a memory leak 3 years ago
extcap_parser.h Revert "extcap: Pass --extcap-version if extcap supports it" 3 years ago
file.c [#17478] free blocks in more places 2 years ago
file.h Consistently refer to blocks that have been modified as "modified". 2 years ago
file_packet_provider.c file_packet_provider: fix constness in declaration. 1 year ago
fileset.c Replace g_assert() with ws_assert() 2 years ago
fileset.h HTTPS (almost) everywhere. 4 years ago
frame_tvbuff.c Use wtap_blocks for packet comments 2 years ago
frame_tvbuff.h HTTPS (almost) everywhere. 4 years ago
globals.h HTTPS (almost) everywhere. 4 years ago
ipmap.html Update URLs pointing to the bug database. 2 years ago
manuf [Automatic update for 2021-08-15] 1 year ago
manuf.tmpl Remove more duplicate manuf.tmpl entries. 2 years ago
mergecap.c Move version_info.[ch] to ui/ 2 years ago
mmdbresolve.c mmdbresolve: check the return value of malloc 4 years ago
org.wireshark.Wireshark-mime.xml doc: Clean up lists of file types. 2 years ago
org.wireshark.Wireshark.desktop Linux: rename metadata according to spec 2 years ago
org.wireshark.Wireshark.metainfo.xml Linux: rename metadata according to spec 2 years ago
pdml2html.xsl Clean up URLs. 2 years ago
pytest.ini test: enable parallelism by default for pytest 4 years ago
randpkt.c wslog: Check environment initialization for errors 2 years ago
rawshark.c Move version_info.[ch] to ui/ 2 years ago
reordercap.c [#17478] free blocks in more places 2 years ago
ringbuffer.c Replace g_assert() with ws_assert() 2 years ago
ringbuffer.h add support for compression of capture file 2 years ago
services [Automatic update for 2021-07-18] 2 years ago
sharkd.c [#17478] free blocks in more places 2 years ago
sharkd.h sharkd: various cleanups. 2 years ago
sharkd_daemon.c Move version_info.[ch] to ui/ 2 years ago
sharkd_session.c Remove unused variables in sharkd_session.c 2 years ago
sync_pipe.h HTTPS (almost) everywhere. 4 years ago
sync_pipe_write.c Replace g_assert() with ws_assert() 2 years ago
text2pcap.c Clean up handling of --capture-comment. 2 years ago
text2pcap.h HTTPS (almost) everywhere. 4 years ago
tfshark.c Move version_info.[ch] to ui/ 2 years ago
tshark.c [#17478] free blocks in more places 2 years ago
vagrant_build.sh Vagrant: Fix provisioning script 3 years ago
wka wka: Add Cisco ACI gleaning src MAC 3 years ago
ws_attributes.h MSVC: Warn about unused formal parameters 3 years ago
ws_diag_control.h text_import: just suppress the two-initializers warning. 2 years ago
ws_log_defs.h wslog: Reverse order for level priority 2 years ago
ws_symbol_export.h HTTPS In More Places, update some URLs. 4 years ago
wspcap.h Update comments - Npcap no longer requires HAVE_REMOTE to be defined. 3 years ago


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.

Both Perl and Python 3 are needed, the former for building the man pages.

You must therefore install Perl, Python, GNU "make", and "flex" (vanilla "lex" won't work) on systems that lack them.

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 gzipped versions of any of those files if zlib was available when Wireshark was compiled. CMake will automatically use zlib if it is found on your system. 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".


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