1/*
 2 * linux/fs/ext4/xattr_security.c
 3 * Handler for storing security labels as extended attributes.
 4 */
 5
 6#include <linux/string.h>
 7#include <linux/fs.h>
 8#include <linux/security.h>
 9#include <linux/slab.h>
10#include "ext4_jbd2.h"
11#include "ext4.h"
12#include "xattr.h"
13
14static int
15ext4_xattr_security_get(const struct xattr_handler *handler,
16			struct dentry *dentry, const char *name,
17			void *buffer, size_t size)
18{
19	return ext4_xattr_get(d_inode(dentry), EXT4_XATTR_INDEX_SECURITY,
20			      name, buffer, size);
21}
22
23static int
24ext4_xattr_security_set(const struct xattr_handler *handler,
25			struct dentry *dentry, const char *name,
26			const void *value, size_t size, int flags)
 
27{
28	return ext4_xattr_set(d_inode(dentry), EXT4_XATTR_INDEX_SECURITY,
29			      name, value, size, flags);
30}
31
32static int
33ext4_initxattrs(struct inode *inode, const struct xattr *xattr_array,
34		void *fs_info)
35{
36	const struct xattr *xattr;
37	handle_t *handle = fs_info;
38	int err = 0;
39
40	for (xattr = xattr_array; xattr->name != NULL; xattr++) {
41		err = ext4_xattr_set_handle(handle, inode,
42					    EXT4_XATTR_INDEX_SECURITY,
43					    xattr->name, xattr->value,
44					    xattr->value_len, 0);
45		if (err < 0)
46			break;
47	}
48	return err;
49}
50
51int
52ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir,
53		   const struct qstr *qstr)
54{
55	return security_inode_init_security(inode, dir, qstr,
56					    &ext4_initxattrs, handle);
57}
58
59const struct xattr_handler ext4_xattr_security_handler = {
60	.prefix	= XATTR_SECURITY_PREFIX,
61	.get	= ext4_xattr_security_get,
62	.set	= ext4_xattr_security_set,
63};

 1/*
 2 * linux/fs/ext4/xattr_security.c
 3 * Handler for storing security labels as extended attributes.
 4 */
 5
 6#include <linux/string.h>
 7#include <linux/fs.h>
 8#include <linux/security.h>
 9#include <linux/slab.h>
10#include "ext4_jbd2.h"
11#include "ext4.h"
12#include "xattr.h"
13
14static int
15ext4_xattr_security_get(const struct xattr_handler *handler,
16			struct dentry *unused, struct inode *inode,
17			const char *name, void *buffer, size_t size)
18{
19	return ext4_xattr_get(inode, EXT4_XATTR_INDEX_SECURITY,
20			      name, buffer, size);
21}
22
23static int
24ext4_xattr_security_set(const struct xattr_handler *handler,
25			struct dentry *unused, struct inode *inode,
26			const char *name, const void *value,
27			size_t size, int flags)
28{
29	return ext4_xattr_set(inode, EXT4_XATTR_INDEX_SECURITY,
30			      name, value, size, flags);
31}
32
33static int
34ext4_initxattrs(struct inode *inode, const struct xattr *xattr_array,
35		void *fs_info)
36{
37	const struct xattr *xattr;
38	handle_t *handle = fs_info;
39	int err = 0;
40
41	for (xattr = xattr_array; xattr->name != NULL; xattr++) {
42		err = ext4_xattr_set_handle(handle, inode,
43					    EXT4_XATTR_INDEX_SECURITY,
44					    xattr->name, xattr->value,
45					    xattr->value_len, 0);
46		if (err < 0)
47			break;
48	}
49	return err;
50}
51
52int
53ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir,
54		   const struct qstr *qstr)
55{
56	return security_inode_init_security(inode, dir, qstr,
57					    &ext4_initxattrs, handle);
58}
59
60const struct xattr_handler ext4_xattr_security_handler = {
61	.prefix	= XATTR_SECURITY_PREFIX,
62	.get	= ext4_xattr_security_get,
63	.set	= ext4_xattr_security_set,
64};