oxidecomputer / oxidecomputer/omicron

[cleanup] Want to have native bindings to sys/acl

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Dominant language
Rust
Stars
572
Forks
97
Avg merge
2d 12h
Merged PRs (30d)
96

Description

https://github.com/oxidecomputer/omicron/pull/7888 aims to make mountpoint directories "safer" against mis-use (e.g., writing to the directory before the dataset-under-interest is mounted).

To do this, we want to:

  • Check if immutability is supported (currently via ls -d/v)
  • Make the directory mutable/immutable (via chmod S+ci)

It should be possible to accomplish this with native bindings to illumos, but I think this will required bindings to https://illumos.org/man/2/acl (sys/acl.h).

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading PR 7888 and the illumos acl(2) documentation, especially sys/acl.h, alongside the current ls -d/v and chmod S+ci approach described here. Done means native illumos bindings can check immutability support and make mountpoint directories mutable or immutable.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
operating-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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