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#include "ubifs.h"
static int ubifs_crypt_get_context(struct inode *inode, void *ctx, size_t len)
{
return ubifs_xattr_get(inode, UBIFS_XATTR_NAME_ENCRYPTION_CONTEXT,
ctx, len);
}
static int ubifs_crypt_set_context(struct inode *inode, const void *ctx,
size_t len, void *fs_data)
{
return ubifs_xattr_set(inode, UBIFS_XATTR_NAME_ENCRYPTION_CONTEXT,
ctx, len, 0);
}
static bool ubifs_crypt_empty_dir(struct inode *inode)
{
return ubifs_check_dir_empty(inode) == 0;
}
static unsigned int ubifs_crypt_max_namelen(struct inode *inode)
{
if (S_ISLNK(inode->i_mode))
return UBIFS_MAX_INO_DATA;
else
return UBIFS_MAX_NLEN;
}
static int ubifs_key_prefix(struct inode *inode, u8 **key)
{
static char prefix[] = "ubifs:";
*key = prefix;
return sizeof(prefix) - 1;
}
struct fscrypt_operations ubifs_crypt_operations = {
.flags = FS_CFLG_INPLACE_ENCRYPTION,
.get_context = ubifs_crypt_get_context,
.set_context = ubifs_crypt_set_context,
.is_encrypted = ubifs_crypt_is_encrypted,
.empty_dir = ubifs_crypt_empty_dir,
.max_namelen = ubifs_crypt_max_namelen,
.key_prefix = ubifs_key_prefix,
};
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