You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.3 KiB
72 lines
2.3 KiB
/*
|
|
* Force legacy printpath/umovestr using PR_SET_DUMPABLE.
|
|
*
|
|
* Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
|
|
*/
|
|
|
|
#include "tests.h"
|
|
|
|
#ifdef HAVE_PRCTL
|
|
# include <sys/prctl.h>
|
|
#endif
|
|
|
|
#if defined HAVE_PRCTL && defined PR_SET_DUMPABLE
|
|
|
|
# include <stdio.h>
|
|
# include <unistd.h>
|
|
|
|
# include "test_ucopy.h"
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
if (!test_process_vm_readv())
|
|
perror_msg_and_skip("process_vm_readv");
|
|
|
|
/*
|
|
* Clearing dumpable flag disallows process_vm_readv.
|
|
* If the kernel does not contain commit
|
|
* 84d77d3f06e7e8dea057d10e8ec77ad71f721be3, then
|
|
* PTRACE_PEEKDATA remains allowed.
|
|
*/
|
|
if (prctl(PR_SET_DUMPABLE, 0))
|
|
perror_msg_and_skip("PR_SET_DUMPABLE 0");
|
|
|
|
if (!test_ptrace_peekdata())
|
|
perror_msg_and_skip("PTRACE_PEEKDATA");
|
|
|
|
test_printstrn(DEFAULT_STRLEN);
|
|
|
|
puts("+++ exited with 0 +++");
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
|
|
SKIP_MAIN_UNDEFINED("HAVE_PRCTL && PR_SET_DUMPABLE")
|
|
|
|
#endif
|