fs/jffs2/acl.h

   1 /*-------------------------------------------------------------------------*
   2  *  File: fs/jffs2/acl.h
   3  *  POSIX ACL support on JFFS2 FileSystem
   4  *
   5  *  Implemented by KaiGai Kohei <kaigai@ak.jp.nec.com>
   6  *  Copyright (C) 2006 NEC Corporation
   7  *
   8  *  For licensing information, see the file 'LICENCE' in the jffs2 directory.
   9  *-------------------------------------------------------------------------*/
  10 struct jffs2_acl_entry {
  11         jint16_t        e_tag;
  12         jint16_t        e_perm;
  13         jint32_t        e_id;
  14 };
  15
  16 struct jffs2_acl_entry_short {
  17         jint16_t        e_tag;
  18         jint16_t        e_perm;
  19 };
  20
  21 struct jffs2_acl_header {
  22         jint32_t        a_version;
  23 };
  24
  25 #ifdef __KERNEL__
  26 #ifdef CONFIG_JFFS2_FS_POSIX_ACL
  27
  28 #define JFFS2_ACL_NOT_CACHED ((void *)-1)
  29
  30 extern int jffs2_permission(struct inode *, int, struct nameidata *);
  31 extern int jffs2_acl_chmod(struct inode *);
  32 extern int jffs2_init_acl(struct inode *, struct inode *);
  33 extern void jffs2_clear_acl(struct inode *);
  34
  35 extern struct xattr_handler jffs2_acl_access_xattr_handler;
  36 extern struct xattr_handler jffs2_acl_default_xattr_handler;
  37
  38 #else
  39
  40 #define jffs2_permission NULL
  41 #define jffs2_acl_chmod(inode)          (0)
  42 #define jffs2_init_acl(inode,dir)       (0)
  43 #define jffs2_clear_acl(inode)
  44
  45 #endif  /* CONFIG_JFFS2_FS_POSIX_ACL */
  46 #endif  /* __KERNEL__ */