ecryptfs_enc...for_filename(9)

💅 NAME 💅

ecryptfs_encode_for_filename — okay so the description slot in the original is literally empty?? like the dash is just sitting there with nothing after it, mystery main character energy, no cap 🫶 that's the whole vibe of this one bestie

This one lives in the Kernel API Manual, so bestie you already know we're in the kernel-adjacent corner of the group chat 🌸

✨ SYNOPSIS ✨

void ecryptfs_encode_for_filename (unsigned char *dst , size_t *dst_size
, unsigned char *src , size_t src_size );

Notice the void bestie — this one doesn't hand you back a return value, it just does the thing and dips 💅

🎀 ARGUMENTS 🎀

• dst — the destination location for the encoded filename. it's giving "the output goes here" energy ✨
• dst_size — the size of the encoded filename, measured in bytes. a pointer, so it's size_t *, not just a plain old size_t, iykyk 🦋
• src — source location for the filename you wanna encode, iconic 👑
• src_size — the size of the source, in bytes. yes, source, not the encoded one — don't mix them up bestie 😭

no notes on return value because there isn't one — void said "not my problem" 💀

🌈 SEE ALSO 🌈

Kernel file ./fs/ecryptfs/crypto.c — that's where this whole friend group hangs out 🧚

• ecryptfs_from_hex(9)
• ecryptfs_derive_iv(9)
• ecryptfs_init_crypt_stat(9)
• ecryptfs_destroy_crypt_stat(9)
• virt_to_scatterlist(9)
• crypt_scatterlist(9)
• crypt_extent(9)
• ecryptfs_encrypt_page(9)
• ecryptfs_decrypt_page(9)
• ecryptfs_init_crypt_ctx(9)
• ecryptfs_copy_mount_wide_flags_to_inode_flags(9)
• ecryptfs_set_default_crypt_stat_vals(9)
• ecryptfs_new_file_context(9)
• ecryptfs_validate_marker(9)
• ecryptfs_process_flags(9)
• write_ecryptfs_marker(9)
• ecryptfs_code_for_cipher_string(9)
• ecryptfs_cipher_code_to_string(9)
• ecryptfs_write_headers_virt(9)
• ecryptfs_write_metadata(9)
• set_default_header_data(9)
• ecryptfs_read_headers_virt(9)
• ecryptfs_read_xattr_region(9)
• ecryptfs_process_key_cipher(9)
• ecryptfs_destroy_crypto(9)
• ecryptfs_tfm_exists(9)
• ecryptfs_get_tfm_and_mutex_for_cipher_name(9)
• ecryptfs_decode_from_filename(9)
• ecryptfs_encrypt_and_encode_filename(9)
• ecryptfs_decode_and_decrypt_filename(9)

like look at that list, it's a whole friend group of ecryptfs functions and they all ate 🔥

that's the whole page bestie, short and mysterious 🎀 source/version is ./fs/ecryptfs and the date on it is October 2026 — mwah, love that for us 💖✨