STRUCT AEAD_REQUEST(9)

🌸 struct aead_request(9) 🌸

okay bestie, so this page lives in the Kernel API Manual and it's literally all about the AEAD request struct 💅 it's short, it's sweet, and it's the thing every async AEAD operation is built around. let's get into it 🫶

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✨ NAME ✨

struct aead_request — an AEAD request, no cap 💖

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✨ SYNOPSIS ✨

here's the whole vibe, character for character:

struct aead_request {
    struct crypto_async_request base;
    unsigned int assoclen;
    unsigned int cryptlen;
    u8 *iv;
    struct scatterlist *src;
    struct scatterlist *dst;
    void *__ctx[];
 };

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🎀 Members 🎀

okay now the member-by-member breakdown, this is the main character energy part ⭐

• base — the common attributes for async crypto requests. it's the shared foundation, everyone's got one 💜
• assoclen — length in bytes of the associated data for authentication. so how much of your extra authenticated-only data there is, like, in bytes 🔥
• cryptlen — length of the data that's actually gonna be encrypted or decrypted. the real crypto payload length, periodt 💅
• iv — the initialisation vector. yes bestie, the IV, it matters 🦋
• src — source data 🌸
• dst — destination data 🎀
• __ctx — start of the private context data. this is where the driver-private stuff begins, iykyk 🙈

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🌈 SEE ALSO 🌈

go look at these next, they're all linked up and lowkey essential:

Kernel file ./include/crypto/aead.h — Authenticated Encryption With Associated Data (AEAD) Cipher API(9), struct aead_alg(9), crypto_alloc_aead(9), crypto_free_aead(9), crypto_has_aead(9), crypto_aead_ivsize(9), crypto_aead_authsize(9), crypto_aead_blocksize(9), crypto_aead_setkey(9), crypto_aead_setauthsize(9), crypto_aead_encrypt(9), crypto_aead_decrypt(9), Asynchronous AEAD Request Handle(9), crypto_aead_reqsize(9), aead_request_set_tfm(9), aead_request_alloc(9), aead_request_free(9), aead_request_set_callback(9), aead_request_set_crypt(9), aead_request_set_ad(9)

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okay that's the whole page bestie, mwah 💋 and for the cute sign-off: this one comes from ./include/crypto and it's dated October 2026 — so yeah, fresh, iconic, that's the source and version, we stan 🧚✨💖