tipc_crypto_rcv(9)

📦 version 7.3.1, in nixpkgs unstable

💖 tipc_crypto_rcv(9) 💖

okay bestie, welcome to the Kernel API Manual — yes we're in the kernel now, put your hair up 🎀 this one's called tipc_crypto_rcv(9) and it's literally the "open the envelope" girlie of TIPC.

✨ NAME ✨

tipc_crypto_rcv — decrypt an encrypted TIPC message from peer 🦋

🌸 SYNOPSIS 🌸

int tipc_crypto_rcv (struct net *net , struct tipc_crypto *rx , struct
sk_buff **skb , struct tipc_bearer * b );

💅 ARGUMENTS 💅

  • net — a struct net, the network namespace babe, that's it, that's the whole vibe
  • rx — the RX crypto handle ✨ your receiving-side main character
  • skb — input/output message skb pointer — yeah it's a pointer to a pointer, she's double iconic 👑
  • b — the bearer where the message has been received 🌈

🫶 DESCRIPTION 🫶

so here's the tea, fr fr: if the decryption is successful, the decrypted skb is returned directly or as the callback — and before it gets forwarded to tipc_rcv via the tipc_crypto_rcv_complete, the encryption header and auth tag will be trimmed out. clean. ✂️✨

otherwise?? the skb will be freed! 💀 no cap. gone. not me crying over a freed skb 😭

🧚 NOTE 🧚

RX key(s) can be re-aligned, or in case of no key suitable, TX cluster key(s) can be taken for decryption (- recursive). lowkey recursive, highkey slay 🔥

⭐ RETURN ⭐

  • 0 — the decryption has successfully completed 🎉 ate and left no crumbs
  • -EINPROGRESS/-EBUSY — the decryption is ongoing, a callback will be made ⏳ she's still cooking
  • -ENOKEY — the decryption has failed due to no key 🔑🙈
  • -EBADMSG — the decryption has failed due to bad message 💀 that message was NOT it
  • -ENOMEM — the decryption has failed due to no memory 😭 brain empty
  • < 0 — the decryption has failed due to other reasons 🫠 misc. chaos, we don't know her

🔮 SEE ALSO 🔮

Kernel file ./net/tipc/crypto.c — plus the whole friend group, iykyk:

okay that's the whole page, mwah 💋 signing off from ./net/tipc — dated October 2026, no cap, periodt. go decrypt something cute 🦋✨

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