ipcget_public(9)

💅 ipcget_public(9) — from the Kernel API Manual, bestie

okay so first of all, the manual page is literally called ipcget_public(9) and it lives in the Kernel API Manual — that's the whole vibe, we're in kernel land now 🐧✨

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✨ NAME ✨

ipcget_public — get an ipc object or create a new one 🫶

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🎀 SYNOPSIS 🎀

int ipcget_public (struct ipc_namespace *ns , struct ipc_ids *ids ,
       const struct ipc_ops *ops , struct ipc_params *params );

like, four args, one int back, no cap 📝

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🌸 ARGUMENTS 🌸

• ns — the ipc namespace, your whole little world for this call 🌍
• ids — the ipc identifier set, aka the master list of ids 💖
• ops — the actual creation routine to call, so this is the plug for the real work 👑
• params — its parameters, everything the creation routine needs 🎀

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🦋 DESCRIPTION 🦋

so this routine gets called by sys_msgget, sys_semget and sys_shmget — but only when the key is not IPC_PRIVATE. main character energy only 💅

here's the tea: if the key is not found, it adds a new entry ✨. and if the key is found, it does some permission / security checkings 🔐 (yes, "checkings" — that's the kernel's word, not mine, iykyk).

on success, the ipc id is returned. periodt 🎉

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🔥 SEE ALSO 🔥

Kernel file ./ipc/util.c — and literally all of these besties:

• ipc_init(9)
• ipc_init_ids(9)
• ipc_init_proc_interface(9)
• ipc_findkey(9)
• ipc_addid(9)
• ipcget_new(9)
• ipc_check_perms(9)
• ipc_kht_remove(9)
• ipc_search_maxidx(9)
• ipc_rmid(9)
• ipc_set_key_private(9)
• ipcperms(9)
• kernel_to_ipc64_perm(9)
• ipc64_perm_to_ipc_perm(9)
• ipc_obtain_object_idr(9)
• ipc_obtain_object_check(9)
• ipcget(9)
• ipc_update_perm(9)
• ipcctl_obtain_check(9)
• ipc_parse_version(9)
• sysvipc_find_ipc(9)

go read them, fr fr 📚💜

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okay that's the whole page, and before you close the tab: this one's from ./ipc, dated October 2026 — so like, a little time capsule moment 🗓️💫 slay, go get those ipc objects 🧚‍♀️💖