llc_conn_state_process(9)

📦 version 7.3.1, in nixpkgs unstable

💅 llc_conn_state_process(9) — like, the Kernel API Manual one, bestie

okay so welcome to the group chat, this is the llc_conn_state_process page from the Kernel API Manual and honestly? she's a baddie with a very specific job. let's get into it 🎀

✨ NAME ✨

llc_conn_state_process — sends an event to the connection state machine. that's it, that's the whole vibe. she delivers the message 📨

🌸 SYNOPSIS 🌸

int llc_conn_state_process (struct sock *sk , struct sk_buff *skb );

🦋 ARGUMENTS 🦋

  • sk — the connection. your main character socket, the one whose state machine we're feeding 🫶
  • skb — the occurred event. yes literally, the thing that happened, hand-delivered as an skb ✨

💜 DESCRIPTION 💜

so what she does is: she sends an event to the connection state machine. that's the whole assignment and she ate, no crumbs 💅

after the event gets processed — meaning it executes its actions and changes state, both — the upper layer gets indicated or confirmed, but only if needed. not every time. only if needed. iykyk 🌈

returns 0 for success, 1 for failure. simple. iconic. two outcomes 👑

⚠️ okay listen, this part is important — the socket lock has to be held before calling this function. like, do not skip this. hold the lock first, then call. periodt 🔒
🔥 also: this function always consumes a reference to the skb. always. every single time. so don't be out here thinking you still own that reference afterwards, because you do not, bestie 😭

⭐ SEE ALSO ⭐

the whole friend group, in kernel file ./net/llc/llc_conn.c:

and that's the page!! 🧚 source /net/llc, dated October 2026 (yes, the future, she's ahead of her time 💀👑), and it's all llc_conn_state_process(9) energy from top to bottom. mwah 💖 go hold that lock, bestie 🫶

📦 where this page comes from