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fs/jffs2/xattr_trusted.c 1.36 KB
652ecc20d   KaiGai Kohei   [JFFS2][XATTR] Un...
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  /*
   * JFFS2 -- Journalling Flash File System, Version 2.
aa98d7cf5   KaiGai Kohei   [JFFS2][XATTR] XA...
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   *
c00c310ea   David Woodhouse   [JFFS2] Tidy up l...
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   * Copyright © 2006  NEC Corporation
aa98d7cf5   KaiGai Kohei   [JFFS2][XATTR] XA...
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   *
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   * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
   *
   * For licensing information, see the file 'LICENCE' in this directory.
   *
   */
c00c310ea   David Woodhouse   [JFFS2] Tidy up l...
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aa98d7cf5   KaiGai Kohei   [JFFS2][XATTR] XA...
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  #include <linux/kernel.h>
  #include <linux/fs.h>
  #include <linux/jffs2.h>
  #include <linux/xattr.h>
  #include <linux/mtd/mtd.h>
  #include "nodelist.h"
  
  static int jffs2_trusted_getxattr(struct inode *inode, const char *name,
  				  void *buffer, size_t size)
  {
  	if (!strcmp(name, ""))
  		return -EINVAL;
  	return do_jffs2_getxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size);
  }
  
  static int jffs2_trusted_setxattr(struct inode *inode, const char *name, const void *buffer,
  				  size_t size, int flags)
  {
  	if (!strcmp(name, ""))
  		return -EINVAL;
  	return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size, flags);
  }
  
  static size_t jffs2_trusted_listxattr(struct inode *inode, char *list, size_t list_size,
  				      const char *name, size_t name_len)
  {
  	size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1;
  
  	if (list && retlen<=list_size) {
  		strcpy(list, XATTR_TRUSTED_PREFIX);
  		strcpy(list + XATTR_TRUSTED_PREFIX_LEN, name);
  	}
  
  	return retlen;
  }
  
  struct xattr_handler jffs2_trusted_xattr_handler = {
  	.prefix = XATTR_TRUSTED_PREFIX,
  	.list = jffs2_trusted_listxattr,
  	.set = jffs2_trusted_setxattr,
  	.get = jffs2_trusted_getxattr
  };