selinux_netl...kbuff_getsid(9)

📦 version 7.3.1, in nixpkgs unstable

💖 selinux_netlbl_skbuff_getsid — the NAME moment ✨

okay so bestie, welcome to the Kernel API Manual 🎀 — this page is all about

selinux_netlbl_skbuff_getsid — Get the sid of a packet using NetLabel 🦋

(also real talk, the header/footer on this one gets truncated to selinux_netl...kbuff_getsid(9) because apparently even manpages have a character limit, and honestly? relatable 💅)

✨ SYNOPSIS ✨

int selinux_netlbl_skbuff_getsid (struct sk_buff *skb , u16 family , u32
*type , u32 *sid );

that's it. that's the whole vibe check. four args, one int return, no cap 🔥

🎀 ARGUMENTS 🎀

  • skb — the packet 💌 like, the actual packet we're doing all this for
  • family — the protocol family 🌸
  • type — the NetLabel labeling protocol type 👑
  • sid — the SID ⭐ (yes, that's the whole description. it's giving "confident and brief")

🧚 DESCRIPTION 🧚

so here's the tea ☕ — this function calls the NetLabel mechanism to grab the security attributes of the given packet, and then uses those attributes to figure out the correct context/SID to assign to that packet. literally matchmaker energy 🫶 (packet, meet SID).

returns zero on success 🌈 and negative values on failure 😭 — so if you get a negative back, something went sideways, no cap.

🦋 SEE ALSO 🦋

the kernel file, bestie:

  • Kernel file ./security/selinux/netlabel.c 📁 (iykyk)

and the whole friend group 💜:

like genuinely, go read selinux_netlbl_skbuff_setsid(9) next, it's the sibling of this one and it serves 🍓

and that's the page!! 🌸 brought to you by ./security/selinux, dated October 2026, and signed off by the iconically truncated selinux_netl...kbuff_getsid(9) — periodt 💅✨

📦 where this page comes from