1 /* 2 * Check decoding of fanotify_init syscall. 3 * 4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr (at) gmail.com> 5 * Copyright (c) 2016-2017 The strace developers. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "tests.h" 32 33 #include <asm/unistd.h> 34 35 #if defined __NR_fanotify_init 36 37 # include <limits.h> 38 # include <stdio.h> 39 # include <unistd.h> 40 41 /* Performs fanotify_init call via the syscall interface. */ 42 static void 43 do_call(kernel_ulong_t flags, const char *flags_str, 44 kernel_ulong_t event_f_flags, const char *event_f_flags_str) 45 { 46 long rc; 47 48 rc = syscall(__NR_fanotify_init, flags, event_f_flags); 49 50 printf("fanotify_init(%s, %s) = %s\n", 51 flags_str, event_f_flags_str, sprintrc(rc)); 52 } 53 54 struct strval { 55 kernel_ulong_t val; 56 const char *str; 57 }; 58 59 60 int 61 main(void) 62 { 63 static const struct strval flags[] = { 64 { F8ILL_KULONG_MASK, "FAN_CLASS_NOTIF" }, 65 { (kernel_ulong_t) 0xffffffff0000000cULL, 66 "0xc /* FAN_CLASS_??? */" }, 67 { (kernel_ulong_t) 0xdec0deddefaced04ULL, 68 "FAN_CLASS_CONTENT|0xefaced00 /* FAN_??? */" }, 69 { (kernel_ulong_t) 0xffffffffffffffffULL, 70 "0xc /* FAN_CLASS_??? */|FAN_CLOEXEC|FAN_NONBLOCK|" 71 "FAN_UNLIMITED_QUEUE|FAN_UNLIMITED_MARKS|0xffffffc0" }, 72 }; 73 static const struct strval event_f_flags[] = { 74 { F8ILL_KULONG_MASK, "O_RDONLY" }, 75 { (kernel_ulong_t) 0xdeadbeef80000001ULL, 76 "O_WRONLY|0x80000000" } 77 }; 78 79 unsigned int i; 80 unsigned int j; 81 82 83 for (i = 0; i < ARRAY_SIZE(flags); i++) 84 for (j = 0; j < ARRAY_SIZE(event_f_flags); j++) 85 do_call(flags[i].val, flags[i].str, 86 event_f_flags[j].val, event_f_flags[j].str); 87 88 puts("+++ exited with 0 +++"); 89 return 0; 90 } 91 92 #else 93 94 SKIP_MAIN_UNDEFINED("__NR_fanotify_init") 95 96 #endif 97
