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| author |   Eric Biggers <ebiggers@google.com> | 2019-12-09 14:23:25 -0800 |
|---|---|---|
| committer |   Richard Weinberger <richard@nod.at> | 2020-01-16 23:35:43 +0100 |
| commit | 219b0e2cba4ec326f88a08a5c9ad51103089bdab (patch) | |
| tree | d5423a36dfb0dcd39cf9c25f29d5cbf8dd9befb7 /fs/ubifs/ioctl.c | |
| parent | ubifs: Fix FS_IOC_SETFLAGS unexpectedly clearing encrypt flag (diff) | |
| download | linux-dev-219b0e2cba4ec326f88a08a5c9ad51103089bdab.tar.xz linux-dev-219b0e2cba4ec326f88a08a5c9ad51103089bdab.zip | |
ubifs: Add support for FS_ENCRYPT_FL
Make the FS_IOC_GETFLAGS ioctl on ubifs return the FS_ENCRYPT_FL flag on
encrypted files, like ext4 and f2fs do.
Also make this flag be ignored by FS_IOC_SETFLAGS, like ext4 and f2fs
do, since it's a recognized flag but is not directly settable.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs/ioctl.c')
| -rw-r--r-- | fs/ubifs/ioctl.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c index eeb1be259888..d49fc04f2d7d 100644 --- a/fs/ubifs/ioctl.c +++ b/fs/ubifs/ioctl.c @@ -17,10 +17,14 @@ #include "ubifs.h" /* Need to be kept consistent with checked flags in ioctl2ubifs() */ -#define UBIFS_SUPPORTED_IOCTL_FLAGS \ +#define UBIFS_SETTABLE_IOCTL_FLAGS \ (FS_COMPR_FL | FS_SYNC_FL | FS_APPEND_FL | \ FS_IMMUTABLE_FL | FS_DIRSYNC_FL) +/* Need to be kept consistent with checked flags in ubifs2ioctl() */ +#define UBIFS_GETTABLE_IOCTL_FLAGS \ + (UBIFS_SETTABLE_IOCTL_FLAGS | FS_ENCRYPT_FL) + /** * ubifs_set_inode_flags - set VFS inode flags. * @inode: VFS inode to set flags for @@ -91,6 +95,8 @@ static int ubifs2ioctl(int ubifs_flags) ioctl_flags |= FS_IMMUTABLE_FL; if (ubifs_flags & UBIFS_DIRSYNC_FL) ioctl_flags |= FS_DIRSYNC_FL; + if (ubifs_flags & UBIFS_CRYPT_FL) + ioctl_flags |= FS_ENCRYPT_FL; return ioctl_flags; } @@ -113,7 +119,7 @@ static int setflags(struct inode *inode, int flags) if (err) goto out_unlock; - ui->flags &= ~ioctl2ubifs(UBIFS_SUPPORTED_IOCTL_FLAGS); + ui->flags &= ~ioctl2ubifs(UBIFS_SETTABLE_IOCTL_FLAGS); ui->flags |= ioctl2ubifs(flags); ubifs_set_inode_flags(inode); inode->i_ctime = current_time(inode); @@ -156,8 +162,9 @@ long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (get_user(flags, (int __user *) arg)) return -EFAULT; - if (flags & ~UBIFS_SUPPORTED_IOCTL_FLAGS) + if (flags & ~UBIFS_GETTABLE_IOCTL_FLAGS) return -EOPNOTSUPP; + flags &= UBIFS_SETTABLE_IOCTL_FLAGS; if (!S_ISDIR(inode->i_mode)) flags &= ~FS_DIRSYNC_FL; |