Eric Lee / smarc-fsl-linux-kernel

18 Mar, 2016

1 commit

  • 0b81d0779   fs crypto: move per-file encryption from f2fs tree to fs/crypto ... Browse Code ยป

    This patch adds the renamed functions moved from the f2fs crypto files.

    1. definitions for per-file encryption used by ext4 and f2fs.

    2. crypto.c for encrypt/decrypt functions
    a. IO preparation:
    - fscrypt_get_ctx / fscrypt_release_ctx
    b. before IOs:
    - fscrypt_encrypt_page
    - fscrypt_decrypt_page
    - fscrypt_zeroout_range
    c. after IOs:
    - fscrypt_decrypt_bio_pages
    - fscrypt_pullback_bio_page
    - fscrypt_restore_control_page

    3. policy.c supporting context management.
    a. For ioctls:
    - fscrypt_process_policy
    - fscrypt_get_policy
    b. For context permission
    - fscrypt_has_permitted_context
    - fscrypt_inherit_context

    4. keyinfo.c to handle permissions
    - fscrypt_get_encryption_info
    - fscrypt_free_encryption_info

    5. fname.c to support filename encryption
    a. general wrapper functions
    - fscrypt_fname_disk_to_usr
    - fscrypt_fname_usr_to_disk
    - fscrypt_setup_filename
    - fscrypt_free_filename

    b. specific filename handling functions
    - fscrypt_fname_alloc_buffer
    - fscrypt_fname_free_buffer

    6. Makefile and Kconfig

    Cc: Al Viro
    Signed-off-by: Michael Halcrow
    Signed-off-by: Ildar Muslukhov
    Signed-off-by: Uday Savagaonkar
    Signed-off-by: Theodore Ts'o
    Signed-off-by: Arnd Bergmann
    Signed-off-by: Jaegeuk Kim

    Jaegeuk Kim