I use brew install wireshark -with-qt on my Mac OS X 10.9.3, after install wireshark 1.10.7, I found I can't open the 'Capture - Capture Filters.' Window, it just do nothing, and the same thing happens when I open ' Capture - Options' and 'Capture - Interfaces'. I wonder if I did some. Install all the necessary development packages using homebrew: brew install c-ares cmake glib gnutls lua qt5. Special step to work around bug in Qt/Homebrew: export. Wireshark and Tshark support a huge number of protocols but tend to be too heavy for embedded environment.

Wireshark questions and answers. ASK YOUR QUESTION. SharkFest ’21 Virtual Europe will be held June 14-18, 2021 and Sharkfest ’21 Virtual US will be held September 13-17, 2021. Meanwhile, don’t forget that you can always find great content still available from past conferences at the Sharkfest US, Sharkfest Europe, and Sharkfest Asia Retrospective pages too! The homebrew package wireshark installs the command line util tshark. If you want to enable the GUI, then install wireshark like this: brew install wireshark -with-qt If you already have Wireshark installed, do.

This Visual Studio Code(tm) extension adds support to open pcap/network files. It allows as well to 'filter' (create smaller) pcap/pcapng files with a freely-configurable, multi-steps assistant.

Note: The time-sync feature works well with extension and for DLT (diagnostic log and trace) files.

Brew Wireshark

Note: It acts mainly as a UI to a local Wireshark™ installation. So Wireshark (incl sharkd) need to be locally installed.

Note: Currently I do find 'sharkd' for Windows only as part of the Wireshark Win32 Portable packages win32/WiresharkPortable_latest. Extracting the wireshark folder into any local folder and pointing the sharkdFullPath setting to it seems to work (so keeping the regular installation untouched).

Note: Under Linux® the default Debian package doesn't install 'sharkd'.With Ubuntu 20.04-LTS installing package 'tshark' seems to be sufficient.

If you install from source (git clone https://github.com/wireshark/wireshark; cd wireshark; mkdir build; cd build; cmake -DBUILD_wireshark=OFF . ; make ; ./run/sharkd - <- should build sharkd and print a 'Hello from client'. The path to this binary should be sufficient. Caution might be needed on the plugin directory location. You can keep the default option -DBUILD_wireshark=ON as well but its not needed. Check the list of compile dependencies (e.g. glib-2.0-dev libpcap-dev libgcrypt20-dev lib-c-ares-dev liblua5.3-dev lua5.3 )

Features

• Open 'pcap'/'pcapng' network capture files. Use command 'Open pcap file..' or with vscode >=1.46 directly open cap/pcap/pcapng files.
• Display filter with known syntax from wireshark
• Time sync feature.
  • Calculates time for each frame based on timestamp and broadcasts the time to the other Time sync extensions so that they reveal the fitting time ranges.
  • Automatic time-sync based on freely-configurable events that get broadcasted to other extensions so that time shifts between documents are adjusted automatically. (todo add example)
  • Manual offset for the time via context menu item adjust-time...
  • If a time was received already the adjust-time.. will propose to adjust/sync the selected line to the received one.
• Tree-view with freely-configurable events based on display filter syntax allows to provide a kind of structure of the frames captured. Selecting an event reveals the frames close to that reception time (even the frames are not part of the current display filter).
• Filter pcap files assistant (mainly to reduce size and ease further analysis). Use command 'Filter pcap file..'. This generates and executes Wireshark-tshark based filter expressions and executes them to create a new pcap files with only the filter matching frames. The steps are fully configurable. The default settings provide filter on MAC addresses, udp dest ports, tcp dest ports and an additional filter expression.
• Extract DLT from pcap assistant that allows to extract DLT files directly from pcap files. Use command 'Extract DLT from pcap file..' and select/confirm the UDP port and choose the devices/MAC addresses that sent the DLT data.
• Merge pcap files i.e. allow to use multiple input pcap files for Filter pcap and Extract DLT. The input files will be passed to mergecap tool first and merged based on frame timestamps.

The extension uses telemetry with two events (open file, errorcode as parameter or filter pcap) if telemetry is activated within your general configuration.

Planned features

• make it look nicer / more compliant to schema.
• indicate running background tasks

Requirements

sharkd (and tshark) binary from Wireshark needs to be locally installed. If installed via 'brew' on OSX its installed by default. For Win32/64 and Linux see notes above.

Extension Settings

This extension contributes the following settings:

• vsc-webshark.sharkdFullPath: Specifies the absolute path incl filename to the sharkd binary. This needs to be set after installation.
• vsc-webshark.tsharkFullPath: Specifies the absolute path incl filename to the tshark binary. Defaults to 'tshark'. Needs to be set after installation if tshark is not reachable via search path.
• vsc-webshark.mergecapFullPath: Specifies the absolute path incl filename to the mergecap binary. Defaults to 'mergecap'. Needs to be set after installation if mergecap is not reachable via search path.
• vsc-webshark.events: Defined events used for time-sync event detection.
  • Tree-view events need to have:
    • level > 0 and
    • label defined. The label can contain {0} for the %i info column or {1}, {2} .. replacements for the values.
    • displayFilter: any Wireshark display filter expression like 'tcp' or 'upd or http.request'
    • values: array of strings referring to Wireshark column/display filters like %t or http.request:0 (take care about the :0. It's not the slice operator but the occurrence if that expression is defined by multiple protocols in the proto tree). Values can be referred to from label via {1.n}.
• Time-sync events additionally have (level and label optional):
  • timeSyncId providing the id for the time-sync event
  • timeSyncPrio defining the prio of this event. Other documents use the lowest value (=highest prio) to define which events to use for time adjustment (so whether to use just broadcast their own defined ones or in case of a timeSyncId and timeSyncValue match to adjust the time).
  • conversionFunction can be used to modify the time-sync value calculated for that event. Needs to be a JS function returning a string. If not used the values are concated by ' ' and if no values defined by info column.
• vsc-webshark.filterSteps: defines the configurable steps of the 'filter pcap file..' assistant. See the default/configuration for an example. (Todo: provide a full description). Please consider using '-C ' in filterArgs and listProvider to use tshark with a minimal configuration (only the plugins activated that you do need for the used filters) to speed up processing significantly. The configuration allows to use multiple steps and chained/piped filters to start with a minimal config and use your default config with more complex plugins/filter expressions (e.g. someip/someipsd plugin) in later steps.
• vsc-webshark.extractDltSteps: similar to filterSteps but for the 'extract DLT from pcap file..' function.
• vsc-webshark.extractDltArgs: arguments used for tshark to extract the DLT message payload from the pcap file.

Known Issues

Sky go live stream. Little testing done yet.Little documentation.

• layout not adapting height.
• Scheme colors/options only partially used. Might not be readable/useable in some settings. I used a dark scheme during development only.
• use getState/setState instead of retainContextWhenHidden
• selected frame, .. not persisted on reopen
• pcapng support in sharkd seems limited. Some files can be opened. Some can't (e.g. test102.pcapng from pcapng-test-generator). Consider converting them first.

Release Notes

See Changelog

Contributions

Any and all test, code or feedback contributions are welcome.Open an issue or create a pull request to make this extension work better for all.

Donations are welcome!

Third-party Content

This project leverages the following third party content:

node-webshark

• Source: https://github.com/QXIP/node-webshark
• License: GPL-2.0 https://github.com/QXIP/node-webshark/blob/master/LICENSE

node-webshark is based on webshark by Jakub Zawadski:

• Source: https://bitbucket.org/jwzawadzki/webshark/src/master/
• License: GPL-2.0

Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries.

It can be difficult to trace network traffic from a Node.js application.Typically, folks will just instrument some logging to check that everything isworking as it is supposed to. Unfortunately, sometimes there are too manyabstractions or possible race conditions to accurately get a good trace. To getthe most objective possible trace of network traffic Wireshark can be used.

Wireshark is a network protocol analyzer that makes it extremely simple tocapture and trace network activity from any source on your computer. It also hastools built in to decrypt traffic like that of HTTPS (TLS / SSL).

Setup

In the case of capturing HTTPS (TLS / SSL) traffic, there is some setup beforecapturing traffic. If all you need is to capture unencrypted HTTP, then skip tothe Wireshark installation, since Wireshark can do so out-of-the-box.

SSL key logging for HTTPS (TLS / SSL) decryption

If you'd like to decrypt HTTPS (TLS / SSL) you will need to set a path via anenvironmental variable to collect SSL keys for use in Wireshark. This sameenvironmental variable works for most browsers and some other applications aswell.

Set the path and file name to whatever you would like.

Node.js SSL key logging

Node.js v12.3.0 introduced a keylog API to store SSL keys, but it can beunwieldy to setup and integrate with existing libraries. It also does not workwith the SSLKEYLOGFILE environmental variable. Luckily, there is a simple wayto set up using an npm module: sslkeylog. sslkeylog sets up global hooksinto the https module to capture any SSL keys used which makes it therecommended way of capturing SSL keys. sslkeylog can be installed with npmlike below:

Once sslkeylog is installed, import it and active its hooks before making anyHTTP(S) calls. For example:

If you use TypeScript, you may need to include a declaration file like below:

Once capturing traffic is complete, you can remove all the code related to SSLkey logging.

Wireshark

First things first, you must install Wireshark program. On macOS you can usebrew to not only install the CLI, but the UI app as well:

For Wireshark to be able to decrypt HTTPS (TLS / SSL) traffic it needs to readthe SSL Key log generated by Node.js or other applications. To configure thisfor Wireshark, open up the application and then open the preferences forWireshark. Once the preferences are open, open the 'Protocols' dropdown in theleft sidebar menu listing and scroll down to 'TLS', then click on it. On olderversions of Wireshark, look for 'SSL' instead of 'TLS'. Once the settings for'TLS' (or 'SSL' for older versions) is open, look for the '(Pre)-Master-Secretlog filename' setting and set the path to the same one that was configured abovevia the SSLKEYLOGFILE environmental variable. You might need to create anempty file at the path given.

Capturing traffic

Now that you are all setup, you can begin capturing traffic. Open up Wiresharkand select the capture interface, which for macOS is usually en0 (Wi-Fi).

Once capturing has begun you should start to see logs of all sorts of trafficto be listed, unless you are not connected to the internet.

This traffic can be overwhelming and mostly unrelated to Node.js or theapplication you are trying to inspect. This where filters come in handy.

For example, to filter requests on a domain:

Brew Install Wireshark

Or to filter on a certain IP address: Best antivirus 2021.

Filters can also be combined with conditional operators && and ||.

Once capturing has begun, you can start your app up as normal and try to causenetwork activity that is in need of being traced.

Hopefully, with a combination with the filters you will be able to find theexact requests and responses you are looking for. If you find either a requestor a response you can right click on a line item and select 'Follow > HTTPStream' to see the both of the request and response.

Osx Wireshark Brew

Additionally, you can save any traffic captured for later use or to send topeers for inspection.