1/* 2 * Check decoding of fanotify_init syscall. 3 * 4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#include "tests.h" 31 32#include <asm/unistd.h> 33 34#if defined __NR_fanotify_init 35 36# include <limits.h> 37# include <stdio.h> 38# include <unistd.h> 39 40/* Performs fanotify_init call via the syscall interface. */ 41static void 42do_call(kernel_ulong_t flags, const char *flags_str, 43 kernel_ulong_t event_f_flags, const char *event_f_flags_str) 44{ 45 long rc; 46 47 rc = syscall(__NR_fanotify_init, flags, event_f_flags); 48 49 printf("fanotify_init(%s, %s) = %s\n", 50 flags_str, event_f_flags_str, sprintrc(rc)); 51} 52 53struct strval { 54 kernel_ulong_t val; 55 const char *str; 56}; 57 58 59int 60main(void) 61{ 62 static const struct strval flags[] = { 63 { (kernel_ulong_t) 0xffffffff00000000ULL, "FAN_CLASS_NOTIF" }, 64 { (kernel_ulong_t) 0xffffffff0000000cULL, 65 "0xc /* FAN_CLASS_??? */" }, 66 { (kernel_ulong_t) 0xdec0deddefaced04ULL, 67 "FAN_CLASS_CONTENT|0xefaced00 /* FAN_??? */" }, 68 { (kernel_ulong_t) 0xffffffffffffffffULL, 69 "0xc /* FAN_CLASS_??? */|FAN_CLOEXEC|FAN_NONBLOCK|" 70 "FAN_UNLIMITED_QUEUE|FAN_UNLIMITED_MARKS|0xffffffc0" }, 71 }; 72 static const struct strval event_f_flags[] = { 73 { (kernel_ulong_t) 0xffffffff00000000ULL, "O_RDONLY" }, 74 { (kernel_ulong_t) 0xdeadbeef80000001ULL, 75 "O_WRONLY|0x80000000" } 76 }; 77 78 unsigned int i; 79 unsigned int j; 80 81 82 for (i = 0; i < ARRAY_SIZE(flags); i++) 83 for (j = 0; j < ARRAY_SIZE(event_f_flags); j++) 84 do_call(flags[i].val, flags[i].str, 85 event_f_flags[j].val, event_f_flags[j].str); 86 87 puts("+++ exited with 0 +++"); 88 return 0; 89} 90 91#else 92 93SKIP_MAIN_UNDEFINED("__NR_fanotify_init") 94 95#endif 96