landlock_get_rule_root(9)

💅 landlock_get_rule_root(9) 💅

okay bestie, welcome to the Kernel API Manual ✨ — yes this is the landlock_get_rule_root(9) page and yes it's a little one but she's got lore 🎀

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🌸 NAME 🌸

landlock_get_rule_root — grab the root of a rule tree by key type 🦋

✨ SYNOPSIS ✨

struct rb_root * landlock_get_rule_root (struct landlock_rules *const
rules , const enum landlock_key_type key_type );

like literally that's the whole signature, no cap 📌

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🫶 ARGUMENTS 🫶

• rules — the rules storage you wanna look up 🔍 that's the thing we're digging through, periodt.
• key_type — the type of key, aka which tree we're selecting for 🌈 it's giving "pick your lane".

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💖 RETURN 💖

A pointer to the rb_root — slay, you got your tree root 👑 — or ERR_PTR(-EINVAL) on an unknown type 😭 so like, if the key type isn't a real one, that's what comes back. no guessing, no improvising, just -EINVAL fr fr 💀

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🌟 SEE ALSO 🌟

• Kernel file ./security/landlock/ruleset.h 📁
• struct landlock_layer(9)
• union landlock_key(9)
• enum landlock_key_type(9)
• struct landlock_id(9)
• struct landlock_rule(9)
• struct landlock_rules(9)
• struct landlock_ruleset(9)

the whole landlock friend group honestly, go say hi 🧚‍♀️💜

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okay that's the page!! mwah 💋 this came from ./security/landlock, dated October 2026, and it's the landlock_get_rule_root(9) moment — go off, bestie 🌈⭐💅