Eric Lee / smarc-fsl-linux-kernel

19 Oct, 2017

1 commit

  • efcc7ae2c   fscrypt: new helper function - fscrypt_file_open() ... Browse Code »

    Add a helper function which prepares to open a regular file which may be
    encrypted. It handles setting up the file's encryption key, then
    checking that the file's encryption policy matches that of its parent
    directory (if the parent directory is encrypted). It may be set as the
    ->open() method or it can be called from another ->open() method.

    Acked-by: Dave Chinner
    Signed-off-by: Eric Biggers
    Signed-off-by: Theodore Ts'o

    Eric Biggers
     

02 Jan, 2017

1 commit

  • 58ae74683   fscrypt: factor out bio specific functions ... Browse Code »

    That way we can get rid of the direct dependency on CONFIG_BLOCK.

    Fixes: d475a507457b ("ubifs: Add skeleton for fscrypto")
    Reported-by: Arnd Bergmann
    Reported-by: Randy Dunlap
    Reviewed-by: Eric Biggers
    Reviewed-by: Christoph Hellwig
    Reviewed-by: David Gstir
    Signed-off-by: Richard Weinberger
    Signed-off-by: Theodore Ts'o

    Richard Weinberger
     

18 Mar, 2016

1 commit

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

    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