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// SPDX-License-Identifier: GPL-2.0
/*
* linux/fs/ext2/xattr_security.c
* Handler for storing security labels as extended attributes.
*/
#include "ext2.h"
#include <linux/security.h>
#include "xattr.h"
static int
ext2_xattr_security_get(const struct xattr_handler *handler,
struct dentry *unused, struct inode *inode,
const char *name, void *buffer, size_t size)
{
return ext2_xattr_get(inode, EXT2_XATTR_INDEX_SECURITY, name,
buffer, size);
}
static int
ext2_xattr_security_set(const struct xattr_handler *handler,
struct user_namespace *mnt_userns,
struct dentry *unused, struct inode *inode,
const char *name, const void *value,
size_t size, int flags)
{
return ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, name,
value, size, flags);
}
static int ext2_initxattrs(struct inode *inode, const struct xattr *xattr_array,
void *fs_info)
{
const struct xattr *xattr;
int err = 0;
for (xattr = xattr_array; xattr->name != NULL; xattr++) {
err = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY,
xattr->name, xattr->value,
xattr->value_len, 0);
if (err < 0)
break;
}
return err;
}
int
ext2_init_security(struct inode *inode, struct inode *dir,
const struct qstr *qstr)
{
return security_inode_init_security(inode, dir, qstr,
&ext2_initxattrs, NULL);
}
const struct xattr_handler ext2_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.get = ext2_xattr_security_get,
.set = ext2_xattr_security_set,
};
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