1d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes/* 2d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Check decoding of umode_t type syscall arguments. 3d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 4d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> 539bac055674d23770b9a724221b728e443196ea7Elliott Hughes * Copyright (c) 2016-2017 The strace developers. 6d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * All rights reserved. 7d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 8d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Redistribution and use in source and binary forms, with or without 9d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * modification, are permitted provided that the following conditions 10d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * are met: 11d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 1. Redistributions of source code must retain the above copyright 12d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer. 13d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 2. Redistributions in binary form must reproduce the above copyright 14d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer in the 15d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * documentation and/or other materials provided with the distribution. 16d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 3. The name of the author may not be used to endorse or promote products 17d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * derived from this software without specific prior written permission. 18d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 19d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes */ 30d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 31d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <stdio.h> 32d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <unistd.h> 33d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <sys/stat.h> 34d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 35d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#ifndef TEST_SYSCALL_PREFIX_ARGS 36d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# define TEST_SYSCALL_PREFIX_ARGS 37d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#endif 38d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#ifndef TEST_SYSCALL_PREFIX_STR 39d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# define TEST_SYSCALL_PREFIX_STR "" 40d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#endif 41d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 4239bac055674d23770b9a724221b728e443196ea7Elliott Hughesstatic const char *sample; 43d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 44d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic void 45d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughestest_syscall(unsigned short mode) 46d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 47d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes unsigned long lmode = (unsigned long) 0xffffffffffff0000ULL | mode; 48d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes long rc = syscall(TEST_SYSCALL_NR, TEST_SYSCALL_PREFIX_ARGS 49d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sample, lmode); 50d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 51d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (mode <= 07) 52d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("%s(%s\"%s\", 00%d) = %ld %s (%m)\n", 5339bac055674d23770b9a724221b728e443196ea7Elliott Hughes TEST_SYSCALL_STR, TEST_SYSCALL_PREFIX_STR, 54d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sample, (int) mode, rc, errno2name()); 55d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes else 56d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("%s(%s\"%s\", %#03ho) = %ld %s (%m)\n", 5739bac055674d23770b9a724221b728e443196ea7Elliott Hughes TEST_SYSCALL_STR, TEST_SYSCALL_PREFIX_STR, 58d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sample, mode, rc, errno2name()); 59d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 60d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 61d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesint 6239bac055674d23770b9a724221b728e443196ea7Elliott Hughesmain(int ac, char **av) 63d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 6439bac055674d23770b9a724221b728e443196ea7Elliott Hughes sample = av[0]; 65d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(0); 66d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(0xffff); 67d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(06); 68d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(060); 69d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(0600); 70d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(024); 71d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(S_IFREG); 72d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(S_IFDIR | 06); 73d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(S_IFLNK | 060); 74d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(S_IFIFO | 0600); 75d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall(S_IFCHR | 024); 76d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_syscall((0xffff & ~S_IFMT) | S_IFBLK); 77d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 78d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes puts("+++ exited with 0 +++"); 79d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return 0; 80d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 81