golang/go

x/sys/unix: want more platform support for UNIX domain socket peer credentials

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#41,659 opened on Sep 27, 2020

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NeedsInvestigationcompiler/runtimehelp wanted

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Description

What version of Go are you using (go version)?

(Although I use many different versions of Go on illumos, Linux, darwin, etc.)

Does this issue reproduce with the latest release?

Yes.

What operating system and processor architecture are you using (go env)?

Feature request

As this is a feature request, I'm not including typical bug report details.

What I'd like is a way for us to obtain peer credentials more broadly. I am most interested in illumos/solaris (which uses getpeerucred() in libc, but I see this being useful for Darwin, FreeBSD, and possibly others.

With Linux we can do GetsockoptUcred with SO_PEERCRED. Which is great. I would like to have a similar way to do this for other platforms (platform specific probably) without having to resort to cgo if possible.

Contributor guide

Research direction
Implement getpeerucred() for illumos/Solaris and similar APIs for Darwin/FreeBSD in the x/sys/unix package, avoiding cgo by using raw syscalls or wrapper functions.
Tech stack
go
Domain
backendapi
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GosyscallUnix domain sockets
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30