aa_unpack_nameX(9)

📦 version 7.3.1, in nixpkgs unstable

💅 aa_unpack_nameX(9) — the kernel API manual, bestie edition 🎀

okay so this is aa_unpack_nameX(9) from the Kernel API Manual, and honestly? it's a little vibe-check function that peeks at the next thing in your serialized stream and goes "hmm, are you the type I'm looking for, and do you have the right name?" 🦋

✨ NAME ✨

aa_unpack_nameX — literally checks whether the next element is of type X and has a name of @name. that's it. that's the whole job. 💅

🌸 SYNOPSIS 🌸

VISIBLE_IF_KUNIT bool aa_unpack_nameX (struct aa_ext *e , enum aa_code
code , const char *name );

🎀 ARGUMENTS 🎀

  • e — the serialized data extent information. NOT NULL, bestie, don't even try it 🙈
  • code — the type code. slay, tell it what type you expect ✨
  • name — the name to match against the serialized element. MAYBE NULL, so like... optional, we love flexibility 💖

👑 DESCRIPTION 👑

so what it actually does: it checks that the next serialized data element is of type X and has a tag name of name. 🫶

if name is specified, then there must be a matching name element in the stream — no matching name, no deal, periodt. if name is NULL, any name element will be skipped and only the typecode gets tested. lowkey chill of it. ⭐

returns true on success — meaning both the type code test and the name test match — and the read head is advanced past the headers. the read head moved on, main character energy, it's thriving 🌈

🔥 RETURN 🔥

false if either match fails, and the read head does not move. it stays right where it is, respectfully. 💀

🧚 SEE ALSO 🧚

Kernel file ./security/apparmor/policy_unpack.c plus the whole friend group:

iykyk 💜

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