| /* |
| * 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 <assert.h> |
| #include <errno.h> |
| #include <stdio.h> |
| #include <sys/syscall.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); |
| struct sock_fprog *const prog = tail_alloc(sizeof(*prog)); |
| |
| prog->filter = filter; |
| prog->len = N; |
| assert(syscall(__NR_seccomp, SECCOMP_SET_MODE_FILTER, -1, prog) == -1); |
| printf("seccomp(SECCOMP_SET_MODE_FILTER, %s, {len=%u, filter=%p})" |
| " = -1 %s (%m)\n", "SECCOMP_FILTER_FLAG_TSYNC|0xfffffffe", |
| prog->len, prog->filter, |
| ENOSYS == errno ? "ENOSYS" : "EINVAL"); |
| |
| assert(syscall(__NR_seccomp, SECCOMP_SET_MODE_FILTER, -2L, efault) == -1); |
| printf("seccomp(SECCOMP_SET_MODE_FILTER, %s, %p) = -1 %s (%m)\n", |
| "0xfffffffe /* SECCOMP_FILTER_FLAG_??? */", efault, |
| ENOSYS == errno ? "ENOSYS" : "EINVAL"); |
| |
| puts("+++ exited with 0 +++"); |
| return 0; |
| } |
| |
| #else |
| |
| SKIP_MAIN_UNDEFINED("__NR_seccomp && SECCOMP_SET_MODE_FILTER") |
| |
| #endif |