2 * linux/fs/hfsplus/xattr_trusted.c
4 * Vyacheslav Dubeyko <slava@dubeyko.com>
6 * Handler for storing security labels as extended attributes.
9 #include <linux/security.h>
10 #include <linux/nls.h>
12 #include "hfsplus_fs.h"
16 static int hfsplus_security_getxattr(struct dentry *dentry, const char *name,
17 void *buffer, size_t size, int type)
19 return hfsplus_getxattr(dentry, name, buffer, size,
20 XATTR_SECURITY_PREFIX,
21 XATTR_SECURITY_PREFIX_LEN);
24 static int hfsplus_security_setxattr(struct dentry *dentry, const char *name,
25 const void *buffer, size_t size, int flags, int type)
27 return hfsplus_setxattr(dentry, name, buffer, size, flags,
28 XATTR_SECURITY_PREFIX,
29 XATTR_SECURITY_PREFIX_LEN);
32 static int hfsplus_initxattrs(struct inode *inode,
33 const struct xattr *xattr_array,
36 const struct xattr *xattr;
40 xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
44 for (xattr = xattr_array; xattr->name != NULL; xattr++) {
46 if (!strcmp(xattr->name, ""))
49 strcpy(xattr_name, XATTR_SECURITY_PREFIX);
51 XATTR_SECURITY_PREFIX_LEN, xattr->name);
53 XATTR_SECURITY_PREFIX_LEN + strlen(xattr->name), 0, 1);
55 err = __hfsplus_setxattr(inode, xattr_name,
56 xattr->value, xattr->value_len, 0);
64 int hfsplus_init_security(struct inode *inode, struct inode *dir,
65 const struct qstr *qstr)
67 return security_inode_init_security(inode, dir, qstr,
68 &hfsplus_initxattrs, NULL);
71 int hfsplus_init_inode_security(struct inode *inode,
73 const struct qstr *qstr)
77 err = hfsplus_init_posix_acl(inode, dir);
79 err = hfsplus_init_security(inode, dir, qstr);
83 const struct xattr_handler hfsplus_xattr_security_handler = {
84 .prefix = XATTR_SECURITY_PREFIX,
85 .get = hfsplus_security_getxattr,
86 .set = hfsplus_security_setxattr,