rxrpc_kernel...all_security(9)

💅 rxrpc_kernel_query_call_security — bestie edition

okay so real talk, this page lives in the Kernel API Manual (yes the big scary one, don't worry, we got this 🫶) and the header literally reads rxrpc_kernel...all_security(9) because someone got tired of typing. the actual grown-up name is right below, come on.

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✨ NAME ✨

rxrpc_kernel_query_call_security — literally just "query the call's security parameters" 💅 no cap, that's the whole vibe.

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🌸 SYNOPSIS 🌸

u8 rxrpc_kernel_query_call_security (struct rxrpc_call *call , u16
       *_service_id , u32 *_enctype );

yes bestie it returns a u8, yes it takes three things, yes you're gonna be fine. ✨

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🎀 ARGUMENTS 🎀

• call — the call you're querying. like, the actual call object. that one. 🦋
• _service_id — a pointer to where it should drop the service ID for you. it's a u16 *, it's gotta point somewhere real, don't be weird about it.
• _enctype — a pointer to where the "encoding type" goes (their quotes, not mine 💀). it's a u32 *, same deal, point it at actual memory please.

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💖 DESCRIPTION 💖

so this is the whole thing: it queries the security parameters of a call. it sets *_service_id and *_enctype for you (yes, through the pointers, that's literally the point of the pointers), and returns the security class. it's giving one-function-three-outputs main character energy honestly. 👑

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⭐ RETURN ⭐

the security class protocol number. that's the u8. that's what you get back. slay. ✨

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🌈 SEE ALSO 🌈

• Kernel file ./net/rxrpc/call_object.c — that's where the actual code lives, go peek, iykyk 🔥

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fr fr the only thing this function does is hand you back the service ID, the encoding type, and the security class — don't read anything extra into it, bestie. 🙈

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and that's the whole page, you ate that honestly 💅🎀

from the ./net/rxrpc corner of the kernel, dated October 2026 — go forth and query those security parameters, bestie 🦋✨