/*
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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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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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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