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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, int flags)
| {
| return ext2_xattr_get(inode, EXT2_XATTR_INDEX_SECURITY, name,
| buffer, size);
| }
|
| static int
| ext2_xattr_security_set(const struct xattr_handler *handler,
| 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,
| };
|
|
