nvme_gen_dhchap_key(2)

✨ nvme_gen_dhchap_key(2) ✨

okay bestie, so this is a page from the libnvme API manual, and today's main character is nvme_gen_dhchap_key 💖 it's giving cryptography, it's giving keys being born, and honestly? obsessed.

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🌸 NAME 🌸

nvme_gen_dhchap_key — DH-HMAC-CHAP key generation 🔐✨

like literally, it makes you a key. that's the whole vibe.

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🎀 SYNOPSIS 🎀

int nvme_gen_dhchap_key (char *hostnqn , enum nvme_hmac_alg hmac ,
unsigned int key_len , unsigned char *secret , unsigned char *key );

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💅 ARGUMENTS 💅

• hostnqn — the Host NVMe Qualified Name 🫶 that's your host's little ID badge, fr.
• hmac — the HMAC algorithm. it's an enum nvme_hmac_alg, so it's giving "pick your fighter" 🥊
• key_len — the output key length, in an unsigned int. how long do you want your key, bestie? 👑
• secret — the secret that gets used for the digest 🤫 no cap, this is the spicy part.
• key — the generated DH-HMAC-CHAP key 💖 this is the baby being born. it's an unsigned char *.

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🌈 RETURN 🌈

if the key generation was successful, the function returns 0 🎉 she ate, she slayed, no notes.

otherwise it returns -1 with errno set 😭 so like, check your errors, bestie, don't just assume it worked.

heads up: -1 means something went sideways and errno is where the tea is. always peek at it. iykyk 💀

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🦋 SEE ALSO 🦋

hmm, this page doesn't have a SEE ALSO section, so like... the see-also is your own curiosity, queen ✨ go read the rest of the libnvme API manual, it's lowkey iconic.

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kisses and key generation, bestie 💜 this page came straight out of the libnvme API manual and it's literally called nvme_gen_dhchap_key(2) — dated July 2026, so she's fresh, she's current, she's periodt. 🎀🦋💅🔥