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Linux/fs/ext2/xattr_trusted.c

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  1 // SPDX-License-Identifier: GPL-2.0
  2 /*
  3  * linux/fs/ext2/xattr_trusted.c
  4  * Handler for trusted extended attributes.
  5  *
  6  * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
  7  */
  8 
  9 #include "ext2.h"
 10 #include "xattr.h"
 11 
 12 static bool
 13 ext2_xattr_trusted_list(struct dentry *dentry)
 14 {
 15         return capable(CAP_SYS_ADMIN);
 16 }
 17 
 18 static int
 19 ext2_xattr_trusted_get(const struct xattr_handler *handler,
 20                        struct dentry *unused, struct inode *inode,
 21                        const char *name, void *buffer, size_t size)
 22 {
 23         return ext2_xattr_get(inode, EXT2_XATTR_INDEX_TRUSTED, name,
 24                               buffer, size);
 25 }
 26 
 27 static int
 28 ext2_xattr_trusted_set(const struct xattr_handler *handler,
 29                        struct dentry *unused, struct inode *inode,
 30                        const char *name, const void *value,
 31                        size_t size, int flags)
 32 {
 33         return ext2_xattr_set(inode, EXT2_XATTR_INDEX_TRUSTED, name,
 34                               value, size, flags);
 35 }
 36 
 37 const struct xattr_handler ext2_xattr_trusted_handler = {
 38         .prefix = XATTR_TRUSTED_PREFIX,
 39         .list   = ext2_xattr_trusted_list,
 40         .get    = ext2_xattr_trusted_get,
 41         .set    = ext2_xattr_trusted_set,
 42 };
 43 

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