smack_key_permission(9)

📦 version 7.3.1, in nixpkgs unstable

💅 smack_key_permission — Smack access on a key

okay so bestie, welcome to smack_key_permission(9) from the Kernel API Manual ✨ this is the section 9 girlie that answers one very specific question: can this task touch this key? 🎀

🌸 NAME 🌸

smack_key_permission — Smack access on a key 🔑

✨ SYNOPSIS ✨

int smack_key_permission (key_ref_t key_ref , const struct cred *cred ,
       enum key_need_perm need_perm );

like, that's the whole signature, no cap 💅

🦋 ARGUMENTS 🦋

  • key_ref — gets to the object 👀 like it's the actual key we're vibe-checking
  • cred — the credentials to use 🪪 the identity paperwork we're doing the check with
  • need_perm — requested key permission 🙏 the specific thing being asked for

💖 DESCRIPTION 💖

Return 0 if the task has read and write to the object, an error code otherwise. periodt 💀 like that's it, that's the whole function — green light 0, or an error code, no in-between bestie 😭

🌈 SEE ALSO 🌈

Kernel file ./security/smack/smack_lsm.c — and honestly the whole extended fam shows up here, it's giving reunion episode 🫶

ngl bestie, that SEE ALSO list is a lot — but like, every single one of them is here, ate and left no crumbs 👑 so go read them all, iykyk 💜

🎀 okay that's the whole page!! brought to you by ./security/smack, dated October 2026, and this little smack_key_permission(9) moment is over — mwah, go check those key permissions bestie 💅✨🦋

📦 where this page comes from