fname_decrypt(9)

okay so bestie, welcome to fname_decrypt(9) from the Kernel API Manual 💅 this one is lowkey iconic: it's the kernel function that decrypts a filename, and we're gonna walk through it together, no cap ✨

🎀 NAME 🎀

fname_decrypt — decrypt a filename 🔓💖

🦋 SYNOPSIS 🦋

int fname_decrypt (const struct inode *inode , const struct fscrypt_str
*iname , struct fscrypt_str *oname );

🌸 ARGUMENTS 🌸

• inode — the inode of the parent directory (for regular filenames) or the inode of the symlink (for symlink targets) 🫶
• iname — the encrypted filename to decrypt 🔐
• oname — (output) the decrypted filename. The caller must have allocated enough space for this, e.g. using fscrypt_fname_alloc_buffer. fr fr, allocate that space first or it's giving chaos 😭

⭐ RETURN ⭐

0 on success, -errno on failure. slay when it's 0, cry when it's -errno 💀

💜 SEE ALSO 💜

Kernel file ./fs/crypto/fname.c — go peek, iykyk 👀

• fscrypt_fname_encrypt(9)
• fscrypt_fname_encrypted_size(9)
• fscrypt_fname_alloc_buffer(9)
• fscrypt_fname_free_buffer(9)
• fscrypt_fname_disk_to_usr(9)
• fscrypt_setup_filename(9)
• fscrypt_match_name(9)
• fscrypt_fname_siphash(9)

that's the whole vibe check, bestie 💅 this page came from the ./fs/crypto source/version, dated October 2026 — mwah, periodt 🎀✨