calipso_pad_write(9)

📦 version 7.3.1, in nixpkgs unstable

💅 calipso_pad_write(9) — bestie, let's write some padding

Okay so picture this: you're deep in the Kernel API Manual, right, and you've stumbled onto calipso_pad_write. She's a tiny little function with one job and she does it impeccably. No notes. Let's get into it 🫶

✨ NAME ✨

calipso_pad_write — writes pad bytes in TLV format, that's the whole thing, that's her whole personality 💖

🦋 SYNOPSIS 🦋

int calipso_pad_write (unsigned char *buf , unsigned int offset ,
       unsigned int count );

Look at her. Iconic signature. Not a single typo. We love to see it ⭐

🎀 ARGUMENTS 🎀

  • buf — the buffer, babes 💫 this is where the magic goes
  • offset — how far from the start of the buffer we should write the padding. Like, the starting point, the vibe origin if you will ✨
  • count — the number of pad bytes to write. Yes, it's a count. Yes, it counts things. We stan a straightforward queen 👑

💖 DESCRIPTION 💖

So what she does is: write count bytes of TLV padding into buf, starting at offset from the start of the buffer. Clean. Simple. Devastatingly effective 🌸

Important bestie disclaimer: count should be less than 8 — see RFC 4942. Do not come for me, that's just what the page says, and I would never lie to you 😭 Read it. Respect it. Live by it 💀

She's not out here doing extra. She's not doing your taxes. She writes padding, she writes it in TLV format, and she goes home. Main character energy fr fr ✨👑

🌈 SEE ALSO 🌈

The whole fam lives in the kernel file ./net/ipv6/calipso.c — go say hi to the extended universe, there's honestly so many of them and I'm obsessed with every single one 🧚💜

Okay that's the whole page, go forth and pad responsibly 💅✨

Signed, sealed, delivered from ./net/ipv6, dated October 2026 — mwah, love u, bye 🎀💖🦋

📦 where this page comes from