2 * JFFS2 -- Journalling Flash File System, Version 2.
4 * Copyright © 2006 NEC Corporation
6 * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
8 * For licensing information, see the file 'LICENCE' in this directory.
12 #include <linux/kernel.h>
13 #include <linux/slab.h>
15 #include <linux/time.h>
16 #include <linux/pagemap.h>
17 #include <linux/highmem.h>
18 #include <linux/crc32.h>
19 #include <linux/jffs2.h>
20 #include <linux/xattr.h>
21 #include <linux/mtd/mtd.h>
22 #include <linux/security.h>
25 /* ---- Initial Security Label Attachment -------------- */
26 int jffs2_init_security(struct inode *inode, struct inode *dir,
27 const struct qstr *qstr)
34 rc = security_inode_init_security(inode, dir, qstr, &name, &value, &len);
36 if (rc == -EOPNOTSUPP)
40 rc = do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, name, value, len, 0);
47 /* ---- XATTR Handler for "security.*" ----------------- */
48 static int jffs2_security_getxattr(struct dentry *dentry, const char *name,
49 void *buffer, size_t size, int type)
51 if (!strcmp(name, ""))
54 return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_SECURITY,
58 static int jffs2_security_setxattr(struct dentry *dentry, const char *name,
59 const void *buffer, size_t size, int flags, int type)
61 if (!strcmp(name, ""))
64 return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_SECURITY,
65 name, buffer, size, flags);
68 static size_t jffs2_security_listxattr(struct dentry *dentry, char *list,
69 size_t list_size, const char *name, size_t name_len, int type)
71 size_t retlen = XATTR_SECURITY_PREFIX_LEN + name_len + 1;
73 if (list && retlen <= list_size) {
74 strcpy(list, XATTR_SECURITY_PREFIX);
75 strcpy(list + XATTR_SECURITY_PREFIX_LEN, name);
81 const struct xattr_handler jffs2_security_xattr_handler = {
82 .prefix = XATTR_SECURITY_PREFIX,
83 .list = jffs2_security_listxattr,
84 .set = jffs2_security_setxattr,
85 .get = jffs2_security_getxattr