netlbl_domhsh_search(9)

✨ netlbl_domhsh_search — bestie's guide to the kernel API manual edition ✨

okay so this is netlbl_domhsh_search(9) from the Kernel API Manual, and honestly? it's giving "tiny function, big responsibility" 💅 let's get into it.

---

🌸 NAME 🌸

netlbl_domhsh_search — literally just: search for a domain entry. that's it. that's the whole vibe. 🔍

---

🦋 SYNOPSIS 🦋

struct netlbl_dom_map * netlbl_domhsh_search (const char *domain , u16
       family );

like, you hand it a domain and a family and it hands you back a pointer. no cap. ✨

---

🎀 ARGUMENTS 🎀

• domain — the domain, bestie. the actual domain string you're looking for. 💖
• family — the address family. yes it matters, keep reading 👀

---

💜 DESCRIPTION 💜

so what does it do? it searches the domain hash table, and if it finds the entry it returns a pointer to that hash table entry. if it doesn't find anything? NULL. that's it. no drama, just NULL. 😭

and here's the cute part: family can be AF_UNSPEC, which is the "idgaf" option — it matches entries from any address family. icon behavior honestly. 🌈

⚠️ okay but fr fr, listen: the caller is responsible for making sure the hash table is protected — either with a RCU read lock or with the hash table lock. that's on you, not on this function. no skipping this step, bestie, i'm serious 🙈

---

🫶 SEE ALSO 🫶

• Kernel file ./net/netlabel/netlabel_domainhash.c 👑
• netlbl_domhsh_free_entry(9), netlbl_domhsh_hash(9), netlbl_domhsh_search_def(9), netlbl_domhsh_audit_add(9), netlbl_domhsh_validate(9), netlbl_domhsh_init(9), netlbl_domhsh_add(9), netlbl_domhsh_add_default(9), netlbl_domhsh_remove_entry(9), netlbl_domhsh_remove_af4(9), netlbl_domhsh_remove_af6(9), netlbl_domhsh_remove(9), netlbl_domhsh_remove_default(9), netlbl_domhsh_getentry(9), netlbl_domhsh_getentry_af4(9), netlbl_domhsh_getentry_af6(9), netlbl_domhsh_walk(9)

the whole friend group, honestly. go say hi 🦋

---

mwah 💋 that's a wrap! this page lives in ./net/netlabel, dated October 2026, and it's literally called netlbl_domhsh_search(9) — go forth and search those domains, bestie 💅✨