Dmitry V. Levin
c6782f144a
strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
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* Check decoding of seccomp SECCOMP_SET_MODE_FILTER.
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*
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2016-2018 The strace developers.
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "tests.h"
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#include <stdio.h>
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#include <asm/unistd.h>
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#include <unistd.h>
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#ifdef HAVE_LINUX_SECCOMP_H
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# include <linux/seccomp.h>
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#endif
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#include <linux/filter.h>
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#if defined __NR_seccomp && defined SECCOMP_SET_MODE_FILTER
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# define N 7
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int
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main(void)
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{
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struct sock_filter *const filter = tail_alloc(sizeof(*filter) * N);
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const void *const efault = tail_alloc(1);
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TAIL_ALLOC_OBJECT_CONST_PTR(struct sock_fprog, prog);
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long rc;
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prog->filter = filter;
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prog->len = N;
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rc = syscall(__NR_seccomp, SECCOMP_SET_MODE_FILTER, -1, prog);
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printf("seccomp(SECCOMP_SET_MODE_FILTER, %s, {len=%u, filter=%p})"
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" = %ld %s (%m)\n",
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"SECCOMP_FILTER_FLAG_TSYNC|SECCOMP_FILTER_FLAG_LOG|"
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"SECCOMP_FILTER_FLAG_SPEC_ALLOW|0xfffffff8",
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prog->len, prog->filter, rc, errno2name());
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rc = syscall(__NR_seccomp, SECCOMP_SET_MODE_FILTER, -8L, efault);
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printf("seccomp(SECCOMP_SET_MODE_FILTER, %s, %p) = %ld %s (%m)\n",
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"0xfffffff8 /* SECCOMP_FILTER_FLAG_??? */",
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efault, rc, errno2name());
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_seccomp && SECCOMP_SET_MODE_FILTER")
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#endif
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