unix_maybe_add_creds(9)

💖 unix_maybe_add_creds(9) 💖

okay so this page is from the Kernel API Manual, and we're about to learn how the kernel maybe adds creds to an skb. slay. 🎀

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🌸 NAME 🌸

unix_maybe_add_creds — Adds current task uid/gid and struct pid to skb if needed.

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✨ SYNOPSIS ✨

int unix_maybe_add_creds (struct sk_buff *skb , const struct sock *sk ,
       const struct sock *other );

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🦋 ARGUMENTS 🦋

• skb — the skb to attach creds to. 💅
• sk — sender sock.
• other — receiver sock.

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💫 DESCRIPTION 💫

Some apps rely on write giving SCM_CREDENTIALS. We include credentials if source or destination socket asserted SOCK_PASSCRED. no cap, that's the whole vibe check. ✨

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😴 CONTEXT 😴

May sleep.

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🔥 RETURN 🔥

On success zero, on error a negative error code is returned. fr fr. ✅

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👀 SEE ALSO 👀

Kernel file ./net/unix/af_unix.c — go look, bestie. 🫶

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catch u later, bestie — this one came from ./net/unix, October 2026 💜🍓