Projects in the topic networking


netlink interface for ethtool

a project by mkubecek

There seems to be an overall consensus that the ioctl interface used by ethtool is a poor design as it's inflexible, error prone and notoriously hard to extend. It should clearly be replaced by netlink and obsoleted. Unfortunately not much actual work has been done in that direction until this project started. The project started in Hackweek 16 (fall 2017) and has been worked on since, both in Hackweek 17-19 and outside. First two parts of kernel implementation are in mainline since 5.6-rc1, first part of userspace implementation (ethtool utility) has been submitted to upstream at the end of Hackweek 19 (2020-02-16).

Updated over 2 years ago. 4 hacker ♥️.

ethtool ops for netdevsim

a project by mkubecek

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.

Updated over 2 years ago. No love. 1 follower.

Hammer an Envoy service mesh onto a SAP S4/HANA landscape and watch everything explode.

a project by STorresi

Although CNCF projects are almost exclusively related to Linux containers, some ideas, like wrapping all the services into network proxies to create a distributed data-plane and enable true observability, could perhaps be explored for some kind of backport in complex legacy distributed systems, like... say... S4/HANA?! I don't even know if this is feasible, but trying won't hurt... just stand at a safe distance from the cluster!

Updated over 2 years ago. 2 hacker ♥️. 2 followers.

Give avahi some love

a project by e_bischoff

Avahi is (among others) a domain names auto-configuration system for Linux compatible with Bonjour. The project is to dig into avahi source code to modernize it if possible and fix bugs.

Updated over 2 years ago. 6 hacker ♥️. 1 follower.

make "predictable network interface names" more predictable

an idea by mkubecek

Since the so-called "predictable names" for network interfaces were introduced, the concept and mainly its implementation has been a target of a lot of critique and sometimes even hate. On the other hand, similar idea works reasonably well for block devices. In my opinion, the main reason why "predictable names" reception was not nearly as good as for block devices is the difference in how the implementation works. For block devices, the device name provided by kernel is preserved and other names based on multiple naming schemes (by path, by UUID, by various device identifiers) are created as symlinks so that all of them (including the original kernel one) can be used simultaneously. On the other hand, network interface has only one name and as it is not represented by a file, symlinks cannot be used for aliases. Therefore even if there are multiple naming schemes (e.g. based on BIOS enumeration, bus address etc.), only one of them can be used for each network device and it's rather unpredictable which one is it going to be. Moreover, some of the generated names are rather long, ugly and inconveninent and unlike with block devices, one cannot just ignore them and use a different name (e.g. one provided by kernel).

Updated over 2 years ago. 1 hackers ♥️. 2 followers. Has no hacker: grab it!

Integrate Firecracker (microVMs) with a Cloud Foundry app runtime scheduler

a project by tassis

Description

Firecracker is an open-source virtualization technology that is purpose-built for creating and managing secure, multi-tenant container and function-based services.

Updated over 2 years ago. 2 hacker ♥️. 1 follower.