This can be seen as a subproject of ethtool netlink interface but from the technical view it's independent.

Every new piece of software is going to be buggy and with frequent changes and rewrites, new regressions are introduced. Automated selftests can help a lot but as ethtool deals with hardware devices, we do not want these tests to depend on a specific hardware. The netdevsim driver was created as a virtual device which (unlike e.g. dummy) cannot be used for actual network traffic but implements various configuration interfaces so that it can be used for their (automated) testing.

Currently (February 2020, before Hackweek 19), netdevsim driver does not provide ethtool_ops callbacks so that it cannot be used with ethtool.

The goal is to implement at least basic ethtool_ops callbacks so that netdevsim can be used for automated testing of both kernel ethtool code and userspace ethtool utility. Ideally, use could set internal values used for replies so that various corner cases can be also tested.

Looking for hackers with the skills:

kernel networking c testing

This project is part of:

Hack Week 18 Hack Week 19

Activity

  • almost 6 years ago: mkubecek added keyword "testing" to this project.
  • almost 6 years ago: mkubecek started this project.
  • almost 6 years ago: mkubecek added keyword "kernel" to this project.
  • almost 6 years ago: mkubecek added keyword "networking" to this project.
  • almost 6 years ago: mkubecek added keyword "c" to this project.
  • almost 6 years ago: mkubecek originated this project.

  • Comments

    Be the first to comment!

    Similar Projects

    Hacking on sched_ext by flonnegren

    Description

    Sched_ext upstream has some interesting issues open for grabs:

    Goals

    Send patches to sched_ext upstream

    Also set up perfetto to trace some of the example schedulers.

    Resources

    https://github.com/sched-ext/scx


    Modernize ocfs2 by goldwynr

    Ocfs2 has gone into a stage of neglect and disrepair. Modernize the code to generate enough interest.

    Goals: * Change the mount sequence to use fscontext * Move from using bufferhead to bio/folios * Use iomap * Run it through xfstests


    Model checking the BPF verifier by shunghsiyu

    Project Description

    BPF verifier plays a crucial role in securing the system (though less so now that unprivileged BPF is disabled by default in both upstream and SLES), and bugs in the verifier has lead to privilege escalation vulnerabilities in the past (e.g. CVE-2021-3490).

    One way to check whether the verifer has bugs to use model checking (a formal verification technique), in other words, build a abstract model of how the verifier operates, and then see if certain condition can occur (e.g. incorrect calculation during value tracking of registers) by giving both the model and condition to a solver.

    For the solver I will be using the Z3 SMT solver to do the checking since it provide a Python binding that's relatively easy to use.

    Goal for this Hackweek

    Learn how to use the Z3 Python binding (i.e. Z3Py) to build a model of (part of) the BPF verifier, probably the part that's related to value tracking using tristate numbers (aka tnum), and then check that the algorithm work as intended.

    Resources


    Kill DMA and DMA32 memory zones by ptesarik

    Description

    Provide a better allocator for DMA-capable buffers, making the DMA and DMA32 zones obsolete.

    Goals

    Make a PoC kernel which can boot a x86 VM and a Raspberry Pi (because early RPi4 boards have some of the weirdest DMA constraints).

    Resources

    • LPC2024 talk:
    • video:


    Modularization and Modernization of cifs.ko for Enhanced SMB Protocol Support by hcarvalho

    Creator:
    Enzo Matsumiya ematsumiya@suse.de @ SUSE Samba team
    Members:
    Henrique Carvalho henrique.carvalho@suse.com @ SUSE Samba team

    Description

    Split cifs.ko in 2 separate modules; one for SMB 1.0 and 2.0.x, and another for SMB 2.1, 3.0, and 3.1.1.

    Goals

    Primary

    Start phasing out/deprecation of older SMB versions

    Secondary

    • Clean up of the code (with focus on the newer versions)
    • Update cifs-utils
    • Update documentation
    • Improve backport workflow (see below)

    Technical details

    Ideas for the implementation.

    • fs/smb/client/{old,new}.c to generate the respective modules
      • Maybe don't create separate folders? (re-evaluate as things progresses!)
    • Remove server->{ops,vals} if possible
    • Clean up fs_context.* -- merge duplicate options into one, handle them in userspace utils
    • Reduce code in smb2pdu.c -- tons of functions with very similar init/setup -> send/recv -> handle/free flow
    • Restructure multichannel
      • Treat initial connection as "channel 0" regardless of multichannel enabled/negotiated status, proceed with extra channels accordingly
      • Extra channel just point to "channel 0" as the primary server, no need to allocate an extra TCPServerInfo for each one
    • Authentication mechanisms
      • Modernize algorithms (references: himmelblau, IAKERB/Local KDC, SCRAM, oauth2 (Azure), etc.


    Remote control for Adam Audio active monitor speakers by dmach

    Description

    I own a pair of Adam Audio A7V active studio monitor speakers. They have ethernet connectors that allow changing their settings remotely using the A Control software. From Windows :-( I couldn't find any open source alternative for Linux besides AES70.js library.

    Goals

    • Create a command-line tool for controlling the speakers.
    • Python is the language of choice.
    • Implement only a simple tool with the desired functionality rather than a full coverage of AES70 standard.

    TODO

    • ✅ discover the device
    • ❌ get device manufacturer and model
    • ✅ get serial number
    • ✅ get description
    • ✅ set description
    • ✅ set mute
    • ✅ set sleep
    • ✅ set input (XRL (balanced), RCA (unbalanced))
    • ✅ set room adaptation
      • bass (1, 0, -1, -2)
      • desk (0, -1, -2)
      • presence (1, 0, -1)
      • treble (1, 0, -1)
    • ✅ set voicing (Pure, UNR, Ext)
    • ❌ the Ext voicing enables the following extended functionality:
      • gain
      • equalizer bands
      • on/off
      • type
      • freq
      • q
      • gain
    • ❌ udev rules to sleep/wakeup the speakers together with the sound card

    Resources

    • https://www.adam-audio.com/en/a-series/a7v/
    • https://www.adam-audio.com/en/technology/a-control-remote-software/
    • https://github.com/DeutscheSoft/AES70.js
    • https://www.aes.org/publications/standards/search.cfm?docID=101 - paid
    • https://www.aes.org/standards/webinars/AESStandardsWebinarSC0212L20220531.pdf
    • https://ocaalliance.github.io/downloads/AES143%20Network%20track%20NA10%20-%20AES70%20Controller.pdf

    Result


    ESETv2 Emulator / interpreter by m.crivellari

    Description

    ESETv2 is an intriguing challenge developed by ESET, available on their website under the "Challenge" menu. The challenge involves an "assembly-like" language and a Python compiler that generates .evm binary files.

    This is an example using one of their samples (it prints N Fibonacci numbers):

    .dataSize 0
    .code
    
    loadConst 0, r1 # first
    loadConst 1, r2 # second
    
    loadConst 1, r14 # loop helper
    
    consoleRead r3
    
    loop:
        jumpEqual end, r3, r15
    
        add r1, r2, r4
        mov r2, r1
        mov r4, r2
    
        consoleWrite r1
    
        sub r3, r14, r3
        jump loop
    end:
    hlt
    

    This language also supports multi-threading. It includes instructions such as createThread to start a new thread, joinThread to wait until a thread completes, and lock/unlock to facilitate synchronization between threads.

    Goals

    • create a full interpreter able to run all the available samples provided by ESET.
    • improve / optimize memory (eg. using bitfields where needed as well as avoid unnecessary memory allocations)

    Resources

    Achivements

    Project still not complete. Added lock / unlock instruction implementation but further debug is needed; there is a bug somewhere. Actually the code it works for almost all the examples in the samples folder. 1 of them is not yet runnable (due to a missing "write" opcode implementation), another will cause the bug to show up; still not investigated, anyhow.


    FizzBuzz OS by mssola

    Project Description

    FizzBuzz OS (or just fbos) is an idea I've had in order to better grasp the fundamentals of the low level of a RISC-V machine. In practice, I'd like to build a small Operating System kernel that is able to launch three processes: one that simply prints "Fizz", another that prints "Buzz", and the third which prints "FizzBuzz". These processes are unaware of each other and it's up to the kernel to schedule them by using the timer interrupts as given on openSBI (fizz on % 3 seconds, buzz on % 5 seconds, and fizzbuzz on % 15 seconds).

    This kernel provides just one system call, write, which allows any program to pass the string to be written into stdout.

    This project is free software and you can find it here.

    Goal for this Hackweek

    • Better understand the RISC-V SBI interface.
    • Better understand RISC-V in privileged mode.
    • Have fun.

    Resources

    Results

    The project was a resounding success add-emoji Lots of learning, and the initial target was met.


    Add a machine-readable output to dmidecode by jdelvare

    Description

    There have been repeated requests for a machine-friendly dmidecode output over the last decade. During Hack Week 19, 5 years ago, I prepared the code to support alternative output formats, but didn't have the time to go further. Last year, Jiri Hnidek from Red Hat Linux posted a proof-of-concept implementation to add JSON output support. This is a fairly large pull request which needs to be carefully reviewed and tested.

    Goals

    Review Jiri's work and provide constructive feedback. Merge the code if acceptable. Evaluate the costs and benefits of using a library such as json-c.


    FastFileCheck work by pstivanin

    Description

    FastFileCheck is a high-performance, multithreaded file integrity checker for Linux. Designed for speed and efficiency, it utilizes parallel processing and a lightweight database to quickly hash and verify large volumes of files, ensuring their integrity over time.

    https://github.com/paolostivanin/FastFileCheck

    Goals

    • Release v1.0.0

    Design overwiew:

    • Main thread (producer): traverses directories and feeds the queue (one thread is more than enough for most use cases)
    • Dedicated consumer thread: manages queue and distributes work to threadpool
    • Worker threads: compute hashes in parallel

    This separation of concerns is efficient because:

    • Directory traversal is I/O bound and works well in a single thread
    • Queue management is centralized, preventing race conditions
    • Hash computation is CPU-intensive and properly parallelized


    Yearly Quality Engineering Ask me Anything - AMA for not-engineering by szarate

    Goal

    Get a closer look at how developers work on the Engineering team (R & D) of SUSE, and close the collaboration gap between GSI and Engineering

    Why?

    Santiago can go over different development workflows, and can do a deepdive into how Quality Engineering works (think of my QE Team, the advocates for your customers), The idea of this session is to help open the doors to opportunities for collaboration, and broaden our understanding of SUSE as a whole.

    Objectives

    • Give $audience a small window on how to get some questions answered either on the spot or within days of how some things at engineering are done
    • Give Santiago Zarate from Quality Engineering a look into how $audience sees the engineering departments, and find out possibilities of further collaboration

    How?

    By running an "Ask me Anything" session, which is a format of a kind of open Q & A session, where participants ask the host multiple questions.

    How to make it happen?

    I'm happy to help joining a call or we can do it async (online/in person is more fun). Ping me over email-slack and lets make the magic happen!. Doesn't need to be during hackweek, but we gotta kickstart the idea during hackweek ;)

    Rules

    The rules are simple, the more questions the more fun it will be; while this will be only a window into engineering, it can also be the place to help all of us get to a similar level of understanding of the processes that are behind our respective areas of the organization.

    Dynamics

    The host will be monitoring the questions on some pre-agreed page, and try to answer to the best of their knowledge, if a question is too difficult or the host doesn't have the answer, he will do his best to provide an answer at a later date.

    Atendees are encouraged to add questions beforehand; in the case there aren't any, we would be looking at how Quality Engineering tests new products or performs regression tests

    Agenda

    • Introduction of Santiago Zarate, Product Owner of Quality Engineering Core team
    • Introduction of the Group/Team/Persons interested
    • Ice breaker
    • AMA time! Add your questions $PAGE
    • Looking at QE Workflows: How is
      • A maintenance update being tested before being released to our customers
      • Products in development are tested before making it generally available
    • Engineering Opportunity Board


    Drag Race - comparative performance testing for pull requests by balanza

    Description

    «Sophia, a backend developer, submitted a pull request with optimizations for a critical database query. Once she pushed her code, an automated load test ran, comparing her query against the main branch. Moments later, she saw a new comment automatically added to her PR: the comparison results showed reduced execution time and improved efficiency. Smiling, Sophia messaged her team, “Performance gains confirmed!”»

    Goals

    • To have a convenient and ergonomic framework to describe test scenarios, including environment and seed;
    • to compare results from different tests
    • to have a GitHub action that executes such tests on a CI environment

    Resources

    The MVP will be built on top of Preevy and K6.


    Hack on isotest-ng - a rust port of isotovideo (os-autoinst aka testrunner of openQA) by szarate

    Description

    Some time ago, I managed to convince ByteOtter to hack something that resembles isotovideo but in Rust, not because I believe that Perl is dead, but more because there are certain limitations in the perl code (how it was written), and its always hard to add new functionalities when they are about implementing a new backend, or fixing bugs (Along with people complaining that Perl is dead, and that they don't like it)

    In reality, I wanted to see if this could be done, and ByteOtter proved that it could be, while doing an amazing job at hacking a vnc console, and helping me understand better what RuPerl needs to work.

    I plan to keep working on this for the next few years, and while I don't aim for feature completion or replacing isotovideo tih isotest-ng (name in progress), I do plan to be able to use it on a daily basis, using specialized tooling with interfaces, instead of reimplementing everything in the backend

    Todo

    • Add make targets for testability, e.g "spawn qemu and type"
    • Add image search matching algorithm
    • Add a Null test distribution provider
    • Add a Perl Test Distribution Provider
    • Fix unittests https://github.com/os-autoinst/isotest-ng/issues/5
    • Research OpenTofu how to add new hypervisors/baremetal to OpenTofu
    • Add an interface to openQA cli

    Goals

    • Implement at least one of the above, prepare proposals for GSoC
    • Boot a system via it's BMC

    Resources

    See https://github.com/os-autoinst/isotest-ng


    Make more sense of openQA test results using AI by livdywan

    Description

    AI has the potential to help with something many of us spend a lot of time doing which is making sense of openQA logs when a job fails.

    User Story

    Allison Average has a puzzled look on their face while staring at log files that seem to make little sense. Is this a known issue, something completely new or maybe related to infrastructure changes?

    Goals

    • Leverage a chat interface to help Allison
    • Create a model from scratch based on data from openQA
    • Proof of concept for automated analysis of openQA test results

    Bonus

    • Use AI to suggest solutions to merge conflicts
      • This would need a merge conflict editor that can suggest solving the conflict
    • Use image recognition for needles

    Resources

    Timeline

    Day 1

    • Conversing with open-webui to teach me how to create a model based on openQA test results

    Day 2

    Highlights

    • I briefly tested compared models to see if they would make me more productive. Between llama, gemma and mistral there was no amazing difference in the results for my case.
    • Convincing the chat interface to produce code specific to my use case required very explicit instructions.
    • Asking for advice on how to use open-webui itself better was frustratingly unfruitful both in trivial and more advanced regards.
    • Documentation on source materials used by LLM's and tools for this purpose seems virtually non-existent - specifically if a logo can be generated based on particular licenses

    Outcomes

    • Chat interface-supported development is providing good starting points and open-webui being open source is more flexible than Gemini. Although currently some fancy features such as grounding and generated podcasts are missing.
    • Allison still has to be very experienced with openQA to use a chat interface for test review. Publicly available system prompts would make that easier, though.


    Testing and adding GNU/Linux distributions on Uyuni by juliogonzalezgil

    Join the Gitter channel! https://gitter.im/uyuni-project/hackweek

    Uyuni is a configuration and infrastructure management tool that saves you time and headaches when you have to manage and update tens, hundreds or even thousands of machines. It also manages configuration, can run audits, build image containers, monitor and much more!

    Currently there are a few distributions that are completely untested on Uyuni or SUSE Manager (AFAIK) or just not tested since a long time, and could be interesting knowing how hard would be working with them and, if possible, fix whatever is broken.

    For newcomers, the easiest distributions are those based on DEB or RPM packages. Distributions with other package formats are doable, but will require adapting the Python and Java code to be able to sync and analyze such packages (and if salt does not support those packages, it will need changes as well). So if you want a distribution with other packages, make sure you are comfortable handling such changes.

    No developer experience? No worries! We had non-developers contributors in the past, and we are ready to help as long as you are willing to learn. If you don't want to code at all, you can also help us preparing the documentation after someone else has the initial code ready, or you could also help with testing :-)

    The idea is testing Salt and Salt-ssh clients, but NOT traditional clients, which are deprecated.

    To consider that a distribution has basic support, we should cover at least (points 3-6 are to be tested for both salt minions and salt ssh minions):

    1. Reposync (this will require using spacewalk-common-channels and adding channels to the .ini file)
    2. Onboarding (salt minion from UI, salt minion from bootstrap scritp, and salt-ssh minion) (this will probably require adding OS to the bootstrap repository creator)
    3. Package management (install, remove, update...)
    4. Patching
    5. Applying any basic salt state (including a formula)
    6. Salt remote commands
    7. Bonus point: Java part for product identification, and monitoring enablement
    8. Bonus point: sumaform enablement (https://github.com/uyuni-project/sumaform)
    9. Bonus point: Documentation (https://github.com/uyuni-project/uyuni-docs)
    10. Bonus point: testsuite enablement (https://github.com/uyuni-project/uyuni/tree/master/testsuite)

    If something is breaking: we can try to fix it, but the main idea is research how supported it is right now. Beyond that it's up to each project member how much to hack :-)

    • If you don't have knowledge about some of the steps: ask the team
    • If you still don't know what to do: switch to another distribution and keep testing.

    This card is for EVERYONE, not just developers. Seriously! We had people from other teams helping that were not developers, and added support for Debian and new SUSE Linux Enterprise and openSUSE Leap versions :-)

    Pending

    FUSS

    FUSS is a complete GNU/Linux solution (server, client and desktop/standalone) based on Debian for managing an educational network.

    https://fuss.bz.it/

    Seems to be a Debian 12 derivative, so adding it could be quite easy.

    • [W] Reposync (this will require using spacewalk-common-channels and adding channels to the .ini file)
    • [W] Onboarding (salt minion from UI, salt minion from bootstrap script, and salt-ssh minion) (this will probably require adding OS to the bootstrap repository creator) --> Working for all 3 options (salt minion UI, salt minion bootstrap script and salt-ssh minion from the UI).
    • [W] Package management (install, remove, update...) --> Installing a new package works, needs to test the rest.
    • [I] Patching (if patch information is available, could require writing some code to parse it, but IIRC we have support for Ubuntu already). No patches detected. Do we support patches for Debian at all?
    • [W] Applying any basic salt state (including a formula)
    • [W] Salt remote commands
    • [ ] Bonus point: Java part for product identification, and monitoring enablement