STRUCT TIPC_AEAD(9)

💖 struct tipc_aead(9) 💖

okay so bestie, welcome to the Kernel API Manual page for struct tipc_aead(9) — yes, the title is right there, and we are gonna get into it. it’s giving kernel-crypto main character energy, no cap.

🌸 NAME 🌸

struct tipc_aead — TIPC AEAD key structure. literally the key-structure glow-up for TIPC AEAD, and this is its manual page. periodt.

✨ SYNOPSIS ✨

struct tipc_aead {
  #define TIPC_AEAD_HINT_LEN (5);
    struct tipc_tfm * __percpu *tfm_entry;
    struct tipc_crypto *crypto;
    struct tipc_aead *cloned;
    atomic_t users;
    u32 salt;
    u8 authsize;
    u8 mode;
    char hint[2 * TIPC_AEAD_HINT_LEN + 1];
    struct rcu_head rcu;
    struct tipc_aead_key *key;
    u16 gen;
    atomic64_t seqno;
    refcount_t refcnt;
 };

🎀 Members 🎀

• tfm_entry — the per-cpu pointer to one entry in the TFM list. one lil per-cpu doorway into the TFM list, slay.
• crypto — TIPC crypto owns this key. it’s the owner, the parent-friend, the “this key is mine” field 💅.
• cloned — a reference to the source key in case cloning happens. so if this key gets cloned, this points back at where it came from.
• users — the number of the key users (TX/RX). literally counting who’s using the key for TX/RX.
• salt — the key’s SALT value. cute lil salt, iconic crypto seasoning 🧂✨.
• authsize — authentication tag size (max = 16). yes bestie, max is 16.
• mode — crypto mode is applied to the key. it’s the mode vibe check for the key.
• hint — a hint for user key. a lil hint, iykyk.
• rcu — struct rcu_head. yep, that exact type, no substitutions.
• key — the aead key. the actual key key, the main character 🔑👑.
• gen — the key’s generation. generation field, very “era” of the key.
• seqno — the per-key TX nonce counter. TX nonce counting, per key, fr fr.
• refcnt — the key reference counter. keeping track of refs so things don’t get messy 😭.

🦋 SEE ALSO 🦋

• Kernel file ./net/tipc/crypto.c
• struct tipc_tfm(9)
• struct tipc_crypto_stats(9)
• struct tipc_crypto(9)
• tipc_aead_key_validate(9)
• tipc_aead_key_generate(9)
• tipc_aead_free(9)
• tipc_aead_tfm_next(9)
• tipc_aead_init(9)
• tipc_aead_clone(9)
• tipc_aead_mem_alloc(9)
• tipc_aead_encrypt(9)
• tipc_aead_decrypt(9)
• tipc_ehdr_validate(9)
• tipc_ehdr_build(9)
• tipc_crypto_key_init(9)
• tipc_crypto_key_attach(9)
• tipc_crypto_key_try_align(9)
• tipc_crypto_key_pick_tx(9)
• tipc_crypto_key_synch(9)
• tipc_crypto_xmit(9)
• tipc_crypto_rcv(9)
• tipc_crypto_msg_rcv(9)
• tipc_crypto_key_distr(9)
• tipc_crypto_key_xmit(9)
• tipc_crypto_key_rcv(9)
• tipc_crypto_work_rx(9)
• tipc_crypto_rekeying_sched(9)
• tipc_crypto_work_tx(9)

mwah 💋 bestie, cute lil sign-off: source/version is ./net/tipc, date is October 2026, and the page is struct tipc_aead(9) — bye, stay crypto-fabulous 🫶✨