__ubifs_node_verify_hmac(9)

📦 version 7.3.1, in nixpkgs unstable

💖 __ubifs_node_verify_hmac (9) — Kernel API Manual 💖

okay bestie, so this page is all about __ubifs_node_verify_hmac from the Kernel API Manual, and honestly? it's a tiny little function with one job and it does it. let's get into it 🫶

✨ NAME ✨

__ubifs_node_verify_hmac — verify the HMAC of UBIFS node 💅

🌸 SYNOPSIS 🌸

int __ubifs_node_verify_hmac (const struct ubifs_info *c , const void
*node , int len , int ofs_hmac );

like, that's the whole signature. four args, one int coming back at you ✨

🎀 ARGUMENTS 🎀

  • c — UBIFS file-system description object. it's the context bestie, it knows things 🌈
  • node — the node to insert a HMAC into. (yes that's literally what it says — i'm just the messenger 💀)
  • len — the length of the node 📏
  • ofs_hmac — the offset in the node where the HMAC is inserted 🎯

💜 DESCRIPTION 💜

so here's the tea ☕ — this function verifies the HMAC at offset ofs_hmac of the node given in node.

that's it, that's the vibe. it checks the thing 🔥

it returns 0 if successful, or a negative error code otherwise. so 0 = slay, negative = not slay 😭

🦋 SEE ALSO 🦋

Kernel file ./fs/ubifs/auth.c, plus the whole friend group:

ngl this one's a short read — go read the rest of ./fs/ubifs/auth.c if you want the full lore 🧚

okay that's the page, periodt 💅 this came out of ./fs/ubifs and it's dated October 2026, so yeah — future-coded icon behavior 👑 go verify some HMACs, bestie, you got this 💖✨🌸

📦 where this page comes from