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fs-verity: add UAPI header

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Add the UAPI header for fs-verity, including two ioctls:

- FS_IOC_ENABLE_VERITY
- FS_IOC_MEASURE_VERITY

These ioctls are documented in the "User API" section of
Documentation/filesystems/fsverity.rst.

Examples of using these ioctls can be found in fsverity-utils
(https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/fsverity-utils.git).

I've also written xfstests that test these ioctls
(https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/xfstests-dev.git/log/?h=fsverity).

Reviewed-by: Theodore Ts'o <[email protected]>
Reviewed-by: Jaegeuk Kim <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
This commit is contained in:
Eric Biggers 2019-07-22 09:26:20 -07:00
commit 085771ec14
2 changed files with 40 additions and 0 deletions
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1
Documentation/ioctl/ioctl-number.rst
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@ -233,6 +233,7 @@ Code Seq# Include File Comments
'f' 00-0F fs/ext4/ext4.h conflict!
'f' 00-0F linux/fs.h conflict!
'f' 00-0F fs/ocfs2/ocfs2_fs.h conflict!
'f' 81-8F linux/fsverity.h
'g' 00-0F linux/usb/gadgetfs.h
'g' 20-2F linux/usb/g_printer.h
'h' 00-7F conflict! Charon filesystem