security_sid_to_context(9)

📦 version 7.3.1, in nixpkgs unstable

💖 security_sid_to_context(9) 💖

okay bestie, welcome to the Kernel API Manual — yes, we're reading kernel docs together, this is our bonding era 🫶

✨ NAME ✨

security_sid_to_context — get the context for a given SID. that's it, that's the whole vibe 💅

🌸 SYNOPSIS 🌸

int security_sid_to_context (u32 sid , char **scontext , u32
*scontext_len );

literally copy-paste that exactly, no cap, the spacing is part of the aesthetic 🎀

🦋 ARGUMENTS 🦋

  • sid — the security identifier, aka the SID. it's the little number that says who/what you are 👑
  • scontext — the security context. this is where the string goes 🍓
  • scontext_len — length in bytes. the size, the measurements, the numbers 💜

🔥 DESCRIPTION 🔥

so here's what's happening: it writes the string representation of the context that's associated with sid into a dynamically allocated string of the correct size. the way it just... allocates the exact right amount? obsessed 😭

then it sets scontext to point to that string, and sets scontext_len to the length of the string. both of them, at once. slay 💅

⭐ SEE ALSO ⭐

the kernel file you want is ./security/selinux/ss/services.c — go read it, it's giving main character energy 📖

and now the whole friend group, in order because we respect the order:

like i said. 26 of them. we listed all 26. iykyk 🌈

ngl bestie, if you made it this far you're officially a kernel girlie now. no takebacks 🧚

okay bye, this page lives in ./security/selinux/ss, dated October 2026, and it's called security_sid_to_context(9) — go forth and read your contexts, queen 👑💖✨

📦 where this page comes from