LXR linux/fs/ext2/xattr

   1/*
   2 * linux/fs/ext2/xattr_trusted.c
   3 * Handler for trusted extended attributes.
   4 *
   5 * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
   6 */
   7
   8#include "ext2.h"
   9#include "xattr.h"
  10
  11static bool
  12ext2_xattr_trusted_list(struct dentry *dentry)
  13{
  14        return capable(CAP_SYS_ADMIN);
  15}
  16
  17static int
  18ext2_xattr_trusted_get(const struct xattr_handler *handler,
  19                       struct dentry *unused, struct inode *inode,
  20                       const char *name, void *buffer, size_t size)
  21{
  22        return ext2_xattr_get(inode, EXT2_XATTR_INDEX_TRUSTED, name,
  23                              buffer, size);
  24}
  25
  26static int
  27ext2_xattr_trusted_set(const struct xattr_handler *handler,
  28                       struct dentry *unused, struct inode *inode,
  29                       const char *name, const void *value,
  30                       size_t size, int flags)
  31{
  32        return ext2_xattr_set(inode, EXT2_XATTR_INDEX_TRUSTED, name,
  33                              value, size, flags);
  34}
  35
  36const struct xattr_handler ext2_xattr_trusted_handler = {
  37        .prefix = XATTR_TRUSTED_PREFIX,
  38        .list   = ext2_xattr_trusted_list,
  39        .get    = ext2_xattr_trusted_get,
  40        .set    = ext2_xattr_trusted_set,
  41};
  42