smack_msg_queue_msgrcv(9)

📦 version 7.3.1, in nixpkgs unstable

💅 smack_msg_queue_msgrcv(9) 💅

okay so welcome to the smack_msg_queue_msgrcv(9) page, straight out of the Kernel API Manual — section 9, kernel-security girlie territory, and yes she is that girl ✨

🌸 NAME 🌸

smack_msg_queue_msgrcv — checks whether the target actually has r/w access to the msg_queue, no cap 🔥

🦋 SYNOPSIS 🦋

int smack_msg_queue_msgrcv (struct kern_ipc_perm *isp , struct msg_msg
*msg , struct task_struct *target , long type , int mode );

bestie look at that signature. it's giving "five arguments but only two of them matter" energy 😭

🎀 ARGUMENTS 🎀

  • isp — the object 🫶 this one's the real main character.
  • msg — unused 🙈 literally just vibing there, doing nothing.
  • target — the task that msgrcvs from the queue 👑 this is who we're vibe-checking.
  • type — unused 🫥 not invited to the group chat.
  • mode — unused 💀 also not invited.

✨ DESCRIPTION ✨

Returns 0 if target has read and write access, error code otherwise 💖

that's it. that's the whole personality. a tiny little yes-or-no gatekeeper for the message queue and honestly? iconic.

ngl the description is short, but we respect a function that knows exactly what it is 🎀

🌈 SEE ALSO 🌈

kernel file ./security/smack/smack_lsm.c — and here's the entire extended friend group, in order, because we don't do "etc." around here 💅

and that's the whole page, bestie 🫶 mwah — this little cutie lives over in ./security/smack, she's dated October 2026, and she answers to the name smack_msg_queue_msgrcv(9). go forth and check your access, periodt 💖✨🎀

📦 where this page comes from