netlbl_cfg_map_del(9)

📦 version 7.3.1, in nixpkgs unstable

💅 netlbl_cfg_map_del — the kernel API manual, bestie edition 🎀

okay so this is netlbl_cfg_map_del(9) from the kernel API manual and honestly? it's giving "short but essential." it's the lil function that yeets a NetLabel/LSM domain mapping into the void. we love a clean removal arc. ✨

✨ NAME ✨

netlbl_cfg_map_del — remove a NetLabel/LSM domain mapping 💫

🌸 SYNOPSIS 🌸

int netlbl_cfg_map_del (const char *domain , u16 family , const void
*addr , const void *mask , struct netlbl_audit *audit_info );

like, five args, one job. she's focused. 🫶

🦋 ARGUMENTS 🦋

  • domain — the domain mapping you wanna remove. bye bestie 👋
  • family — the address family, obvi
  • addr — the IP address
  • mask — the IP address mask
  • audit_info — the NetLabel audit info, for the receipts 📝

👑 DESCRIPTION 👑

Removes a NetLabel/LSM domain mapping. periodt. 🔥

and here's the iconic detail: if domain is NULL, that causes the default domain mapping to be removed. so NULL is not a bug, it's a vibe — it means "default, please." 💅

it returns zero on success, and negative values on failure. so basically:

  • 0 = slay ✅
  • negative = not slay 😭
ngl, check that return value. negative means something went sideways and you will want to know about it. fr fr.

💜 SEE ALSO 💜

the whole friend group 🫶 — and yes, the kernel file ./net/netlabel/netlabel_kapi.c is where it lives:

and that's the whole page, bestie 💖 this lil icon shipped from the source ./net/netlabel, dated October 2026, and it's signed netlbl_cfg_map_del(9) — mwah, no notes. 💋✨

📦 where this page comes from