mirror of
https://github.com/torvalds/linux.git
synced 2024-12-07 03:21:32 +00:00
5930122683
preparation for similar switch in ->setxattr() (see the next commit for rationale). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
|
|
* linux/fs/ext4/xattr_security.c
|
|
* Handler for storing security labels as extended attributes.
|
|
*/
|
|
|
|
#include <linux/string.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/security.h>
|
|
#include <linux/slab.h>
|
|
#include "ext4_jbd2.h"
|
|
#include "ext4.h"
|
|
#include "xattr.h"
|
|
|
|
static int
|
|
ext4_xattr_security_get(const struct xattr_handler *handler,
|
|
struct dentry *unused, struct inode *inode,
|
|
const char *name, void *buffer, size_t size)
|
|
{
|
|
return ext4_xattr_get(inode, EXT4_XATTR_INDEX_SECURITY,
|
|
name, buffer, size);
|
|
}
|
|
|
|
static int
|
|
ext4_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 ext4_xattr_set(inode, EXT4_XATTR_INDEX_SECURITY,
|
|
name, value, size, flags);
|
|
}
|
|
|
|
static int
|
|
ext4_initxattrs(struct inode *inode, const struct xattr *xattr_array,
|
|
void *fs_info)
|
|
{
|
|
const struct xattr *xattr;
|
|
handle_t *handle = fs_info;
|
|
int err = 0;
|
|
|
|
for (xattr = xattr_array; xattr->name != NULL; xattr++) {
|
|
err = ext4_xattr_set_handle(handle, inode,
|
|
EXT4_XATTR_INDEX_SECURITY,
|
|
xattr->name, xattr->value,
|
|
xattr->value_len, 0);
|
|
if (err < 0)
|
|
break;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
int
|
|
ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir,
|
|
const struct qstr *qstr)
|
|
{
|
|
return security_inode_init_security(inode, dir, qstr,
|
|
&ext4_initxattrs, handle);
|
|
}
|
|
|
|
const struct xattr_handler ext4_xattr_security_handler = {
|
|
.prefix = XATTR_SECURITY_PREFIX,
|
|
.get = ext4_xattr_security_get,
|
|
.set = ext4_xattr_security_set,
|
|
};
|