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ubifs: Use fscrypt ioctl() helpers 

Commit db717d8e26 ("fscrypto: move ioctl processing more fully into
common code") moved ioctl() related functions into fscrypt and offers
us now a set of helper functions.

Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: David Gstir <david@sigma-star.at>
This commit is contained in:
Richard Weinberger 2016-12-13 00:27:59 +01:00
parent 3858866866
commit ec9160dacd
2 changed files with 4 additions and 24 deletions
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24
fs/ubifs/ioctl.c
View File

@ -184,39 +184,19 @@ long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case FS_IOC_SET_ENCRYPTION_POLICY: {
#ifdef CONFIG_UBIFS_FS_ENCRYPTION
struct ubifs_info *c = inode->i_sb->s_fs_info;
struct fscrypt_policy policy;
if (copy_from_user(&policy,
(struct fscrypt_policy __user *)arg,
sizeof(policy)))
return -EFAULT;
err = ubifs_enable_encryption(c);
if (err)
return err;
err = fscrypt_process_policy(file, &policy);
return err;
return fscrypt_ioctl_set_policy(file, (const void __user *)arg);
#else
return -EOPNOTSUPP;
#endif
}
case FS_IOC_GET_ENCRYPTION_POLICY: {
#ifdef CONFIG_UBIFS_FS_ENCRYPTION
struct fscrypt_policy policy;
if (!ubifs_crypt_is_encrypted(inode))
return -ENOENT;
err = fscrypt_get_policy(inode, &policy);
if (err)
return err;
if (copy_to_user((void __user *)arg, &policy, sizeof(policy)))
return -EFAULT;
return 0;
return fscrypt_ioctl_get_policy(file, (void __user *)arg);
#else
return -EOPNOTSUPP;
#endif

4
fs/ubifs/ubifs.h
View File

@ -1806,8 +1806,8 @@ int ubifs_decompress(const struct ubifs_info *c, const void *buf, int len,
#define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
#define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
#define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
#define fscrypt_process_policy fscrypt_notsupp_process_policy
#define fscrypt_get_policy fscrypt_notsupp_get_policy
#define fscrypt_ioctl_set_policy fscrypt_notsupp_ioctl_set_policy
#define fscrypt_ioctl_get_policy fscrypt_notsupp_ioctl_get_policy
#define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
#define fscrypt_inherit_context fscrypt_notsupp_inherit_context
#define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info