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Linux/fs/ext2/xattr_trusted.c

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  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 
 11 static bool
 12 ext2_xattr_trusted_list(struct dentry *dentry)
 13 {
 14         return capable(CAP_SYS_ADMIN);
 15 }
 16 
 17 static int
 18 ext2_xattr_trusted_get(const struct xattr_handler *handler,
 19                        struct dentry *dentry, const char *name,
 20                        void *buffer, size_t size)
 21 {
 22         return ext2_xattr_get(d_inode(dentry), EXT2_XATTR_INDEX_TRUSTED, name,
 23                               buffer, size);
 24 }
 25 
 26 static int
 27 ext2_xattr_trusted_set(const struct xattr_handler *handler,
 28                        struct dentry *dentry, const char *name,
 29                        const void *value, size_t size, int flags)
 30 {
 31         return ext2_xattr_set(d_inode(dentry), EXT2_XATTR_INDEX_TRUSTED, name,
 32                               value, size, flags);
 33 }
 34 
 35 const struct xattr_handler ext2_xattr_trusted_handler = {
 36         .prefix = XATTR_TRUSTED_PREFIX,
 37         .list   = ext2_xattr_trusted_list,
 38         .get    = ext2_xattr_trusted_get,
 39         .set    = ext2_xattr_trusted_set,
 40 };
 41 

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