selinux_netl...kbuff_setsid(9)

💅 NAME 💅

okay so this page is selinux_netl...kbuff_setsid(9) from the Kernel API Manual, and the function it's hyping up is selinux_netlbl_skbuff_setsid — which, say it with me, sets the NetLabel on a packet given a sid. that's the whole vibe bestie 🎀

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✨ SYNOPSIS ✨

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

it returns an int, no cap 🫶

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🌸 ARGUMENTS 🌸

• skb — the packet. the actual lil guy we're labeling ✨
• family — protocol family 🌈
• sid — the SID 👑

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🦋 DESCRIPTION 🦋

Description: call the NetLabel mechanism to set the label of a packet using sid.

Returns zero on success, and negative values on failure. that's it, that's the function, she's simple and she eats 💅

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🌟 SEE ALSO 🌟

• Kernel file ./security/selinux/netlabel.c
• 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_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_helper(9)
• selinux_netlbl_socket_connect_locked(9)
• selinux_netlbl_socket_connect(9)

like, the whole netlabel friend group fr fr 🫶

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lowkey a whole family of selinux_netlbl_* functions and this one is just the packet-labeling one. go read the others if you want the full lore, iykyk 💀

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mwah, that's the page!! this one lives in ./security/selinux and it's dated October 2026 — so go forth and label those packets bestie, slay 💖✨🎀