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/*
* Check decoding of seccomp SECCOMP_SET_MODE_FILTER.
*
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2016-2020 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <stdio.h>
#include "scno.h"
#include <unistd.h>
#ifdef HAVE_LINUX_SECCOMP_H
# include <linux/seccomp.h>
#endif
#include <linux/filter.h>
#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|SECCOMP_FILTER_FLAG_LOG|"
"SECCOMP_FILTER_FLAG_SPEC_ALLOW|"
"SECCOMP_FILTER_FLAG_NEW_LISTENER|"
"SECCOMP_FILTER_FLAG_TSYNC_ESRCH|0xffffffe0",
prog->len, prog->filter, rc, errno2name());
rc = syscall(__NR_seccomp, SECCOMP_SET_MODE_FILTER, -32L, efault);
printf("seccomp(SECCOMP_SET_MODE_FILTER, %s, %p) = %ld %s (%m)\n",
"0xffffffe0 /* 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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