tomoyo_write(9)

💖 tomoyo_write(9) 💖

Okay bestie, welcome to the Kernel API Manual — and the main character of this page is literally tomoyo_write(9), the write() for the /sys/kernel/security/tomoyo/ interface. No cap, that's the vibe. 🦋

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🌸 NAME 🌸

tomoyo_write — the write() for the /sys/kernel/security/tomoyo/ interface. She's specific, she's iconic, she's here. 💅

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✨ SYNOPSIS ✨

Behold the signature, copied exactly so nobody comes for me:

       ssize_t tomoyo_write (struct file *file , const char __user *buf ,
       size_t count , loff_t *ppos );

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🎀 ARGUMENTS 🎀

Listen, there are four of them, and they're giving exactly this:

• file — pointer to struct file. 💖
• buf — pointer to buffer. 🫶
• count — size of buf. ⭐
• ppos — unused. Like, not even used, bestie. 🙈

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🔥 DESCRIPTION 🔥

Returns count on success, negative value otherwise. That's it, that's the tea — success gets you count back, and anything else is a negative value. Periodt. 💜

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🦋 SEE ALSO 🦋

Go snoop here, bestie:

• Kernel file ./security/tomoyo/securityfs_if.c 👑
• tomoyo_check_task_acl(9) ✨
• tomoyo_write_self(9) 💅
• tomoyo_read_self(9) 🌸
• tomoyo_open(9) 🎀
• tomoyo_release(9) 🦋
• tomoyo_poll(9) 🌈
• tomoyo_read(9) 💖
• tomoyo_create_entry(9) ⭐
• tomoyo_interface_init(9) 🫶

All of these are part of the same little friend group. 💜

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Cute sign-off time: this page is brought to you by ./security/tomoyo, dated October 2026, and yes — it's still tomoyo_write(9). Periodt. 🎀