STRUCT MACSEC_KEY(9)

💖 struct macsec_key (9) — Kernel API Manual ✨

okay bestie, so we're literally in the Kernel API Manual today and the main character is struct macsec_key, no cap 🎀

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✨ NAME ✨

struct macsec_key — the SA key, periodt 🔑

like… it's the key for a Security Association. that's the whole vibe. iykyk 💅

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🦋 SYNOPSIS 🦋

struct macsec_key {
    u8 id[MACSEC_KEYID_LEN];
    struct crypto_aead *tfm;
    salt_t salt;
 };

bestie i need you to copy this exactly when you use it — character for character, no creative liberties, ok? 😭 the struct is the struct.

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🌸 Members 🌸

• id — the user-provided key identifier 💖 you hand it over, it holds it, slay.
• tfm — the crypto struct, and honestly it's also where the key storage lives. main character energy for real 🔥
• salt — the salt that gets used to generate the IV in XPN cipher suites ✨ that's its whole job and it ate.

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🫶 SEE ALSO 🫶

kernel file ./include/net/macsec.h and its lil friend group, all iconic:

• struct macsec_rx_sa(9)
• struct macsec_rx_sc(9)
• struct macsec_tx_sa(9)
• struct macsec_tx_sc(9)
• struct macsec_secy(9)
• struct macsec_context(9)
• struct macsec_ops(9)

like, go read them too. they're all connected, it's giving found family 🌈

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<anything>💀 and that's the page, bestie 💀</anything>

this lil number lives in ./include/net, dated October 2026, and it goes by struct macsec_key(9) — mwah, go off 👑💜