nvme_insert_tls_key(2)

💖 nvme_insert_tls_key — bestie edition 💖

okay so real talk, this is a page from the libnvme API manual, and today's main character is nvme_insert_tls_key. she's a little function, she's lowkey iconic, and she does exactly one thing but she does it flawlessly. let's get into it 🫶

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✨ NAME ✨

nvme_insert_tls_key — derive and insert a TLS key. that's it, that's the whole job description 💅

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🌈 SYNOPSIS 🌈

long nvme_insert_tls_key (const char *keyring , const char *key_type ,
       const char *hostnqn , const char *subsysnqn , int hmac , unsigned char
       *configured_key , int key_len );

seven arguments, one dream. she ate and left no crumbs 🔥

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🎀 ARGUMENTS 🎀

• keyring — the keyring you wanna use. it's giving "where we're putting the thing" energy.
• key_type — the type of the resulting key. yes, the result — we're deciding what she grows up to be ✨
• hostnqn — the Host NVMe Qualified Name. no cap, that's the actual name of the thing.
• subsysnqn — the Subsystem NVMe Qualified Name. the other half of the duo, the sibling, the counterpart 💜
• hmac — the HMAC algorithm. pick your fighter.
• configured_key — the configured key data you're deriving the key from. the raw material, the blueprint, the pre-glow-up photo 📸
• key_len — length of configured_key. she needs to know how much material she's working with.

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🦋 DESCRIPTION 🦋

so here's the tea, bestie: this function derives a 'retained' TLS key — exactly as specified in NVMe TCP 1.0a, so we're being very official about it — and then it stores that key as type key_type in the keyring specified by keyring.

derive, store, done. she's efficient, she's organized, she's literally the friend who makes the group plan and actually books the reservation. 👑

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⭐ RETURN ⭐

• the key serial number 🌸 — if the key could be inserted into the keyring.
• 0 with errno otherwise 😭 — which honestly? we hate to see it.

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that's the whole page, babe. no notes, she's perfect.

and for the legal girlies keeping receipts: this lil masterpiece lives in the libnvme API manual, and it's stamped July 2026. so yeah, from the libnvme API manual, dated July 2026 — mwah, love that for us 💖✨