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/*
* Check decoding of seccomp SECCOMP_SET_MODE_FILTER.
*
* Copyright (c) 2016 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"
#include <stdio.h>
#include <asm/unistd.h>
#include <unistd.h>
#ifdef HAVE_LINUX_SECCOMP_H
# include <linux/seccomp.h>
#endif
#ifdef HAVE_LINUX_FILTER_H
# include <linux/filter.h>
#endif
#if defined __NR_seccomp && defined SECCOMP_SET_MODE_FILTER
# define N 7
int
main(void)
{
struct sock_filter *const filter = tail_alloc(sizeof(*filter) * N);
const void *const efault = tail_alloc(1);
TAIL_ALLOC_OBJECT_CONST_PTR(struct sock_fprog, prog);
long rc;
prog->filter = filter;
prog->len = N;
rc = syscall(__NR_seccomp, SECCOMP_SET_MODE_FILTER, -1, prog);
printf("seccomp(SECCOMP_SET_MODE_FILTER, %s, {len=%u, filter=%p})"
" = %ld %s (%m)\n", "SECCOMP_FILTER_FLAG_TSYNC|0xfffffffe",
prog->len, prog->filter, rc, errno2name());
rc = syscall(__NR_seccomp, SECCOMP_SET_MODE_FILTER, -2L, efault);
printf("seccomp(SECCOMP_SET_MODE_FILTER, %s, %p) = %ld %s (%m)\n",
"0xfffffffe /* SECCOMP_FILTER_FLAG_??? */",
efault, rc, errno2name());
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_seccomp && SECCOMP_SET_MODE_FILTER")
#endif
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