cnstr_shdsc_aead_null_encap(9)

✨ cnstr_shdsc_aead_null_encap(9) ✨

bestie, you're in the Kernel API Manual, and this page is all about cnstr_shdsc_aead_null_encap(9) — say that three times fast, iykyk 💅.

🌸 NAME 🌸

cnstr_shdsc_aead_null_encap — IPSec ESP encapsulation shared descriptor (non-protocol) with no (null) encryption. Periodt. 🎀

🧚 SYNOPSIS 🧚

void cnstr_shdsc_aead_null_encap (u32 * const desc , struct alginfo *adata , unsigned int icvsize , int era );

💜 ARGUMENTS 💜

• desc — pointer to the buffer used for descriptor construction. It's the blank canvas where the descriptor gets built, no cap 🎨.
• adata — pointer to authentication transform definitions. A split key is required for SEC Era < 6, and the size of the split key is specified in this case. Valid algorithm values are one of OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed with OP_ALG_AAI_HMAC_PRECOMP. That's the whole algorithm menu, bestie 🔐.
• icvsize — integrity check value (ICV) size (truncated or full). Basically how much ICV we're working with, full or truncated, periodt ✨.
• era — SEC Era. That's it, that's the era 🫶.

🔥 SEE ALSO 🔥

Kernel file ./drivers/crypto/caam/caamalg_desc.c — that's the source file bestie 👀.

• cnstr_shdsc_aead_null_decap(9)
• cnstr_shdsc_aead_encap(9)
• cnstr_shdsc_aead_decap(9)
• cnstr_shdsc_aead_givencap(9)
• cnstr_shdsc_gcm_encap(9)
• cnstr_shdsc_gcm_decap(9)
• cnstr_shdsc_rfc4106_encap(9)
• cnstr_shdsc_rfc4106_decap(9)
• cnstr_shdsc_rfc4543_encap(9)
• cnstr_shdsc_rfc4543_decap(9)
• cnstr_shdsc_chachapoly(9)
• cnstr_shdsc_skcipher_encap(9)
• cnstr_shdsc_skcipher_decap(9)
• cnstr_shdsc_xts_skcipher_encap(9)
• cnstr_shdsc_xts_skcipher_decap(9)

xoxo, source/version ./drivers/crypto/caam, dated October 2026, signing off as cnstr_shdsc_aead_null_encap(9) 💅🎀🫶