libnvmf_update_key(9)

📦 version 3.2, in arch rolling

💅 libnvmf_update_key(9) — like, the libnvme API manual, bestie ✨

okay so real talk, we're in the libnvme API manual and today's main character is libnvmf_update_key(9). yes it's a section 9 page. yes it's about keys. yes we're gonna get through it together 🫶

✨ NAME ✨

libnvmf_update_key — update key raw data 💖

🌸 SYNOPSIS 🌸

int libnvmf_update_key (struct libnvme_global_ctx *ctx , long keyring_id , const char *key_type , const char *identity , unsigned char *key_data , int key_len , long *key );

like, that's the whole signature, no cap. six args and a return type, she's thicc but she's iconic 👑

🎀 ARGUMENTS 🎀

  • ctx — a struct libnvme_global_ctx object, aka the whole vibe/context you're operating in ✨
  • keyring_id — the id of the keyring that's holding key_id 🔑
  • key_type — what type of key you're inserting, iykyk
  • identity — the key identity string, like her name tag at the function 💅
  • key_data — the raw data of the key, fr fr the actual bytes
  • key_len — the length of key_data (yes bestie, sizes matter)
  • key — the key serial to return, so you get something back 🎁

🦋 DESCRIPTION 🦋

so what does she actually do. okay. She links the keyring specified by keyring_id into the session keyring, and then she updates the key reference by identity with key_data. simple. slay.

and the drama? the old key with identity identity will be revoked to make it inaccessible 😭 like she's not just replacing it, she's cutting it off, making it unreachable, gone-girl-ing it. so don't come crying if the old one stops working — that's literally the point, periodt.

🔥 RETURN 🔥

  • 0 on success 🎉
  • negative error code otherwise 💀

🌈 SEE ALSO 🌈

not me checking... nope, no SEE ALSO section in this one, bestie. she's a standalone queen 👑 (well, aside from being part of the libnvme API manual, obviously ✨)

🌸 little reminder: negative error code means it did not work, so please actually check the return value. no silent failures in this group chat 🙈

and that's the whole page!! sign-off time: this was libnvmf_update_key from the libnvme API manual, dated October 2026, and the source/version is libnvmf_update_key — ok bye love u, go update some keys responsibly 🧚💜🍓

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