netlbl_sock_setattr(9)

💖 NAME 💖

netlbl_sock_setattr — label a socket using the correct protocol. no cap, that's the whole vibe. 💅

okay bestie, this page is netlbl_sock_setattr(9) from the Kernel API Manual, and it's literally about giving your socket the right label. main character energy only. ✨

✨ SYNOPSIS ✨

int netlbl_sock_setattr (struct sock *sk , u16 family , const struct
       netlbl_lsm_secattr *secattr , bool sk_locked );

🎀 ARGUMENTS 🎀

• sk — the socket to label. the actual socket getting the label, bestie. 💖
• family — protocol family. yes, the protocol family. 🌈
• secattr — the security attributes. this is the label tea. 🍓
• sk_locked — true if caller holds the socket lock. if you hold the lock, say true; iykyk 🔒

💅 DESCRIPTION 💅

okay so the way that this works is: attach the correct label to the given socket using the security attributes specified in secattr. that's it, that's the slay. ✨

but the vibe check is serious: this function requires exclusive access to sk, which means it either needs to be in the process of being created or locked. no cap, exclusive access is not optional here. 🔒

returns:

• 0 on success — slay, periodt 💖
• -EDESTADDRREQ if the domain is configured to use network address selectors (can't blindly label the socket) — not the vibe 😭
• negative values on all other failures — yeah, negative = not it 💀

🌈 SEE ALSO 🌈

the kernel file is ./net/netlabel/netlabel_kapi.c, and the whole reference squad is:

• netlbl_cfg_map_del(9)
• netlbl_cfg_unlbl_map_add(9)
• netlbl_cfg_unlbl_static_add(9)
• netlbl_cfg_unlbl_static_del(9)
• netlbl_cfg_cipsov4_add(9)
• netlbl_cfg_cipsov4_del(9)
• netlbl_cfg_cipsov4_map_add(9)
• netlbl_cfg_calipso_add(9)
• netlbl_cfg_calipso_del(9)
• netlbl_cfg_calipso_map_add(9)
• _netlbl_catmap_getnode(9)
• netlbl_catmap_walk(9)
• netlbl_catmap_walkrng(9)
• netlbl_catmap_getlong(9)
• netlbl_catmap_setbit(9)
• netlbl_catmap_setrng(9)
• netlbl_catmap_setlong(9)
• netlbl_bitmap_walk(9)
• netlbl_bitmap_setbit(9)
• netlbl_enabled(9)
• netlbl_sock_delattr(9)
• netlbl_sock_getattr(9)
• netlbl_sk_lock_check(9)
• netlbl_conn_setattr(9)
• netlbl_req_setattr(9)
• netlbl_req_delattr(9)
• netlbl_skbuff_setattr(9)
• netlbl_skbuff_getattr(9)
• netlbl_skbuff_err(9)
• netlbl_cache_invalidate(9)
• netlbl_cache_add(9)
• netlbl_audit_start(9)
• netlbl_init(9)

🫶 cute sign-off: source/version is ./net/netlabel, date is October 2026, and that's the periodt. 💜