netlbl_cfg_unlbl_map_add(9)

📦 version 7.3.1, in nixpkgs unstable

💖 netlbl_cfg_unlbl_map_add — Kernel API Manual ✨

okay bestie, so this is a page from the Kernel API Manual all about netlbl_cfg_unlbl_map_add, and honestly? It's giving "small function, important job" energy. Let's get into it 🫶

🌸 NAME 🌸

netlbl_cfg_unlbl_map_add — adds a brand new unlabeled mapping. that's it, that's the whole vibe 💅

🦋 SYNOPSIS 🦋

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

five args, one int back. no cap, that's the whole signature 🔥

🎀 ARGUMENTS 🎀

  • domain — the domain mapping you wanna add, bestie 🌈
  • family — the address family (iykyk)
  • addr — the IP address, literally
  • mask — the IP address mask, also literally
  • audit_info — the NetLabel audit information 🧚

⭐ DESCRIPTION ⭐

so what it does: this one adds a new unlabeled NetLabel/LSM domain mapping ✨

and here's the iconic bit — if you pass a domain value of NULL, it doesn't complain, it just adds a new default domain mapping instead. main character behavior honestly 💀

returns zero on success, and negative values on failure. so like, 0 = slay, anything negative = not slay 😭

👑 SEE ALSO 👑

this list is LONG and it ate, ngl. first up, the kernel file: ./net/netlabel/netlabel_kapi.c, then all these besties:

like, go off, cross-references 👏👏

fr fr though: if you only remember one thing, remember NULL domain = default domain mapping gets added. that's the plot twist 🍓

and that's the whole page, bestie 💜 this came out of ./net/netlabel, dated October 2026, and the manpage is literally just called netlbl_cfg_unlbl_map_add(9) — ok bye, go add some mappings, periodt 💅✨

📦 where this page comes from