netlbl_af4list_search_exact(9)

💅 netlbl_af4list_search_exact 💅

okay so this is from the Kernel API Manual and it's literally the exact-match girlie of the IPv4 address list world 🎀 she's not here to fuzz around, she wants the exact entry, periodt.

✨ NAME ✨

netlbl_af4list_search_exact — search for an exact IPv4 address entry 🔍

🌸 SYNOPSIS 🌸

struct netlbl_af4list * netlbl_af4list_search_exact (__be32 addr ,
       __be32 mask , struct list_head *head );

🦋 ARGUMENTS 🦋

• addr — the IPv4 address, bestie. the actual address you're hunting for 🎯
• mask — the IPv4 address mask that goes with it 🌈
• head — the list head, aka where the whole list starts 👑

💖 DESCRIPTION 💖

so she searches the IPv4 address list that you passed in as head ✨ and if an exact match is found, that's what she returns — no cap. if not? you get NULL, and honestly? that's just how it is 😭

🫶 real talk though: the caller is responsible for calling the rcu_read_[un]lock functions. that's on you, not her. don't leave her hanging unlocked, i'm begging 🙈

🔥 SEE ALSO 🔥

• kernel file ./net/netlabel/netlabel_addrlist.c — go read the source, iykyk 📖
• netlbl_af4list_search(9)
• netlbl_af6list_search(9)
• netlbl_af6list_search_exact(9)
• netlbl_af4list_add(9)
• netlbl_af6list_add(9)
• netlbl_af4list_remove_entry(9)
• netlbl_af4list_remove(9)
• netlbl_af6list_remove_entry(9)
• netlbl_af6list_remove(9)
• netlbl_af4list_audit_addr(9)
• netlbl_af6list_audit_addr(9)

the whole friend group fr fr, she's not solo-ing this 💜

🎀 that's the whole page babes! this one lives in ./net/netlabel, dated October 2026, and it's filed under netlbl_af4list_search_exact(9) — mwah, slay, go call your rcu locks 💅✨