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/*-
* Copyright (c) 2006 nCircle Network Security, Inc.
* All rights reserved.
*
* This software was developed by Robert N. M. Watson for the TrustedBSD
* Project under contract to nCircle Network Security, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
* INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Test that privilege is required to write to the system extended attribute
* namespace.
*/
#include <sys/types.h>
#include <sys/extattr.h>
#include <err.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include "main.h"
#define EA_NAMESPACE EXTATTR_NAMESPACE_SYSTEM
#define EA_NAME "test"
#define EA_DATA "test"
#define EA_SIZE strlen(EA_DATA)
void
priv_vfs_extattr_system(void)
{
char fpath[1024];
int error;
assert_root();
/*
* Set file perms so that discretionary access control would grant
* write rights on non-system EAs on the file.
*/
setup_file(fpath, UID_ROOT, GID_WHEEL, 0666);
/*
* Try with privilege.
*/
if (extattr_set_file(fpath, EA_NAMESPACE, EA_NAME, EA_DATA, EA_SIZE)
< 0) {
warn("extattr_set_file(SYSTEM, %s, %s, %d) as root",
EA_NAME, EA_DATA, EA_SIZE);
goto out;
}
set_euid(UID_OTHER);
/*
* Try without privilege.
*/
error = extattr_set_file(fpath, EA_NAMESPACE, EA_NAME, EA_DATA,
EA_SIZE);
if (error == 0) {
warn("extattr_set_file(SYSTEM, %s, %s, %d) succeeded as !root",
EA_NAME, EA_DATA, EA_SIZE);
goto out;
}
if (errno != EPERM) {
warn("extattr_set_file(SYSTEM, %s, %s, %d) wrong errno %d "
"as !root", EA_NAME, EA_DATA, EA_SIZE, errno);
goto out;
}
out:
seteuid(UID_ROOT);
(void)unlink(fpath);
}
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