selinux_netl...nnect_helper(9)

💅 selinux_netl...nnect_helper(9) — from the Kernel API Manual 🎀

okay bestie, welcome to the group chat, this one's a kernel-page ✨ it lives in the Kernel API Manual and it's all about helping NetLabel figure out what a client-side socket is the moment it connects 🦋 so like, label energy from the very first handshake, no cap.

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✨ NAME ✨

selinux_netlbl_socket_connect_helper — literally here to help label a client-side socket on connect 💖

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🌸 SYNOPSIS 🌸

int selinux_netlbl_socket_connect_helper (struct sock *sk , struct sockaddr *addr );

that's the whole vibe: returns an int, takes a struct sock * and a struct sockaddr *, slay 💅

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🫶 ARGUMENTS 🫶

• sk — the socket to label 👑 that's the main character right there
• addr — the destination address 🌈 the "where's this socket even going" of it all

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💜 DESCRIPTION 💜

So the actual plot: it attempts to label a connected socket with NetLabel using the address you handed it 🎀

Returns zero values on success, negative values on failure — so like, 0 is the good ending, anything negative is the "😭 not today" ending. Not me being dramatic, that's just how it is, fr fr.

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🔥 SEE ALSO 🔥

Kernel file ./security/selinux/netlabel.c — go read it, iykyk 🧚

• selinux_netlbl_sidlookup_cached(9)
• selinux_netlbl_sock_genattr(9)
• selinux_netlbl_sock_getattr(9)
• selinux_netlbl_cache_invalidate(9)
• selinux_netlbl_err(9)
• selinux_netlbl_sk_security_free(9)
• selinux_netlbl_sk_security_reset(9)
• selinux_netlbl_skbuff_getsid(9)
• selinux_netlbl_skbuff_setsid(9)
• selinux_netlbl_sctp_assoc_request(9)
• selinux_netlbl_inet_conn_request(9)
• selinux_netlbl_inet_csk_clone(9)
• selinux_netlbl_sctp_sk_clone(9)
• selinux_netlbl_socket_post_create(9)
• selinux_netlbl_sock_rcv_skb(9)
• selinux_netlbl_option(9)
• selinux_netlbl_socket_setsockopt(9)
• selinux_netlbl_socket_connect_locked(9)
• selinux_netlbl_socket_connect(9)

the whole netlabel fam showed up to the function list, we love a supportive squad 💖✨

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okay and that's the whole page — no hidden lore, no extra flags, that's genuinely it, bestie 💅

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cute little sign-off 🎀 this one ships out of ./security/selinux, dated October 2026, and the page is selinux_netl...nnect_helper(9) in case you forgot the title already (we don't blame you, it's a long one 😭). bye bestie, go label some sockets 💜🦋