forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
2.0 KiB
73 lines
2.0 KiB
/* |
|
* JFFS2 -- Journalling Flash File System, Version 2. |
|
* |
|
* Copyright © 2006 NEC Corporation |
|
* |
|
* Created by KaiGai Kohei <[email protected]> |
|
* |
|
* For licensing information, see the file 'LICENCE' in this directory. |
|
* |
|
*/ |
|
|
|
#include <linux/kernel.h> |
|
#include <linux/slab.h> |
|
#include <linux/fs.h> |
|
#include <linux/time.h> |
|
#include <linux/pagemap.h> |
|
#include <linux/highmem.h> |
|
#include <linux/crc32.h> |
|
#include <linux/jffs2.h> |
|
#include <linux/xattr.h> |
|
#include <linux/mtd/mtd.h> |
|
#include <linux/security.h> |
|
#include "nodelist.h" |
|
|
|
/* ---- Initial Security Label(s) Attachment callback --- */ |
|
static int jffs2_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 = do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, |
|
xattr->name, xattr->value, |
|
xattr->value_len, 0); |
|
if (err < 0) |
|
break; |
|
} |
|
return err; |
|
} |
|
|
|
/* ---- Initial Security Label(s) Attachment ----------- */ |
|
int jffs2_init_security(struct inode *inode, struct inode *dir, |
|
const struct qstr *qstr) |
|
{ |
|
return security_inode_init_security(inode, dir, qstr, |
|
&jffs2_initxattrs, NULL); |
|
} |
|
|
|
/* ---- XATTR Handler for "security.*" ----------------- */ |
|
static int jffs2_security_getxattr(const struct xattr_handler *handler, |
|
struct dentry *unused, struct inode *inode, |
|
const char *name, void *buffer, size_t size) |
|
{ |
|
return do_jffs2_getxattr(inode, JFFS2_XPREFIX_SECURITY, |
|
name, buffer, size); |
|
} |
|
|
|
static int jffs2_security_setxattr(const struct xattr_handler *handler, |
|
struct user_namespace *mnt_userns, |
|
struct dentry *unused, struct inode *inode, |
|
const char *name, const void *buffer, |
|
size_t size, int flags) |
|
{ |
|
return do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, |
|
name, buffer, size, flags); |
|
} |
|
|
|
const struct xattr_handler jffs2_security_xattr_handler = { |
|
.prefix = XATTR_SECURITY_PREFIX, |
|
.set = jffs2_security_setxattr, |
|
.get = jffs2_security_getxattr |
|
};
|
|
|