1 /* 2 * Check decoding of setitimer and getitimer syscalls. 3 * 4 * Copyright (c) 2015-2017 Dmitry V. Levin <ldv (at) altlinux.org> 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 #include <stdio.h> 32 #include <stdint.h> 33 #include <sys/time.h> 34 #include <unistd.h> 35 #include <asm/unistd.h> 36 37 int 38 main(void) 39 { 40 static const struct itimerval new = { 41 .it_interval = { 0xc0de1, 0xc0de2 }, 42 .it_value = { 0xc0de3, 0xc0de4 } 43 }; 44 static const kernel_ulong_t long_timer = 45 F8ILL_KULONG_MASK | ITIMER_REAL; 46 static const kernel_ulong_t bogus_timer = 47 (kernel_ulong_t) 0xfacefeeddeadbeefULL; 48 49 TAIL_ALLOC_OBJECT_CONST_PTR(struct itimerval, p_old); 50 struct itimerval *const p_new = tail_memdup(&new, sizeof(new)); 51 void *const efault = tail_alloc(sizeof(new) - 8); 52 long rc; 53 54 if (setitimer(ITIMER_REAL, p_new, NULL)) 55 perror_msg_and_skip("setitimer"); 56 printf("setitimer(ITIMER_REAL" 57 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 58 ", it_value={tv_sec=%lld, tv_usec=%llu}}" 59 ", NULL) = 0\n", 60 (long long) new.it_interval.tv_sec, 61 zero_extend_signed_to_ull(new.it_interval.tv_usec), 62 (long long) new.it_value.tv_sec, 63 zero_extend_signed_to_ull(new.it_value.tv_usec)); 64 65 fill_memory(p_old, sizeof(*p_old)); 66 if (getitimer(ITIMER_REAL, p_old)) 67 perror_msg_and_skip("getitimer"); 68 printf("getitimer(ITIMER_REAL" 69 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 70 ", it_value={tv_sec=%lld, tv_usec=%llu}}) = 0\n", 71 (long long) p_old->it_interval.tv_sec, 72 zero_extend_signed_to_ull(p_old->it_interval.tv_usec), 73 (long long) p_old->it_value.tv_sec, 74 zero_extend_signed_to_ull(p_old->it_value.tv_usec)); 75 76 fill_memory(p_old, sizeof(*p_old)); 77 setitimer(ITIMER_REAL, p_new, p_old); 78 printf("setitimer(ITIMER_REAL" 79 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 80 ", it_value={tv_sec=%lld, tv_usec=%llu}}" 81 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 82 ", it_value={tv_sec=%lld, tv_usec=%llu}}) = 0\n", 83 (long long) new.it_interval.tv_sec, 84 zero_extend_signed_to_ull(new.it_interval.tv_usec), 85 (long long) new.it_value.tv_sec, 86 zero_extend_signed_to_ull(new.it_value.tv_usec), 87 (long long) p_old->it_interval.tv_sec, 88 zero_extend_signed_to_ull(p_old->it_interval.tv_usec), 89 (long long) p_old->it_value.tv_sec, 90 zero_extend_signed_to_ull(p_old->it_value.tv_usec)); 91 92 rc = getitimer(ITIMER_REAL, efault); 93 printf("getitimer(ITIMER_REAL, %p) = %s\n", efault, sprintrc(rc)); 94 95 rc = setitimer(ITIMER_REAL, p_new, efault); 96 printf("setitimer(ITIMER_REAL" 97 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 98 ", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n", 99 (long long) new.it_interval.tv_sec, 100 zero_extend_signed_to_ull(new.it_interval.tv_usec), 101 (long long) new.it_value.tv_sec, 102 zero_extend_signed_to_ull(new.it_value.tv_usec), 103 efault, sprintrc(rc)); 104 105 rc = setitimer(ITIMER_REAL, efault, p_old); 106 printf("setitimer(ITIMER_REAL, %p, %p) = %s\n", 107 efault, p_old, sprintrc(rc)); 108 109 fill_memory(p_old, sizeof(*p_old)); 110 rc = syscall(__NR_setitimer, long_timer, p_new, p_old); 111 printf("setitimer(ITIMER_REAL" 112 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 113 ", it_value={tv_sec=%lld, tv_usec=%llu}}" 114 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 115 ", it_value={tv_sec=%lld, tv_usec=%llu}}) = %s\n", 116 (long long) new.it_interval.tv_sec, 117 zero_extend_signed_to_ull(new.it_interval.tv_usec), 118 (long long) new.it_value.tv_sec, 119 zero_extend_signed_to_ull(new.it_value.tv_usec), 120 (long long) p_old->it_interval.tv_sec, 121 zero_extend_signed_to_ull(p_old->it_interval.tv_usec), 122 (long long) p_old->it_value.tv_sec, 123 zero_extend_signed_to_ull(p_old->it_value.tv_usec), 124 sprintrc(rc)); 125 126 fill_memory(p_old, sizeof(*p_old)); 127 rc = syscall(__NR_getitimer, long_timer, p_old); 128 printf("getitimer(ITIMER_REAL" 129 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 130 ", it_value={tv_sec=%lld, tv_usec=%llu}}) = %s\n", 131 (long long) p_old->it_interval.tv_sec, 132 zero_extend_signed_to_ull(p_old->it_interval.tv_usec), 133 (long long) p_old->it_value.tv_sec, 134 zero_extend_signed_to_ull(p_old->it_value.tv_usec), 135 sprintrc(rc)); 136 137 rc = syscall(__NR_setitimer, bogus_timer, p_new, p_old); 138 printf("setitimer(%#x /* ITIMER_??? */" 139 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 140 ", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n", 141 (int) bogus_timer, 142 (long long) new.it_interval.tv_sec, 143 zero_extend_signed_to_ull(new.it_interval.tv_usec), 144 (long long) new.it_value.tv_sec, 145 zero_extend_signed_to_ull(new.it_value.tv_usec), 146 p_old, sprintrc(rc)); 147 148 rc = syscall(__NR_getitimer, bogus_timer, p_old); 149 printf("getitimer(%#x /* ITIMER_??? */, %p) = %s\n", 150 (int) bogus_timer, p_old, sprintrc(rc)); 151 152 if (F8ILL_KULONG_SUPPORTED) { 153 const kernel_ulong_t ill_new = f8ill_ptr_to_kulong(p_new); 154 const kernel_ulong_t ill_old = f8ill_ptr_to_kulong(p_old); 155 156 rc = syscall(__NR_setitimer, long_timer, ill_new, ill_old); 157 printf("setitimer(ITIMER_REAL, %#llx, %#llx) = %s\n", 158 (unsigned long long) ill_new, 159 (unsigned long long) ill_old, 160 sprintrc(rc)); 161 162 rc = syscall(__NR_getitimer, long_timer, ill_old); 163 printf("getitimer(ITIMER_REAL, %#llx) = %s\n", 164 (unsigned long long) ill_old, sprintrc(rc)); 165 } 166 167 p_new->it_interval.tv_sec = 0xdeadbeefU; 168 p_new->it_interval.tv_usec = 0xfacefeedU; 169 p_new->it_value.tv_sec = (time_t) 0xcafef00ddeadbeefLL; 170 p_new->it_value.tv_usec = (suseconds_t) 0xbadc0dedfacefeedLL; 171 172 rc = setitimer(ITIMER_REAL, p_new, p_old); 173 printf("setitimer(ITIMER_REAL" 174 ", {it_interval={tv_sec=%lld, tv_usec=%llu}" 175 ", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n", 176 (long long) p_new->it_interval.tv_sec, 177 zero_extend_signed_to_ull(p_new->it_interval.tv_usec), 178 (long long) p_new->it_value.tv_sec, 179 zero_extend_signed_to_ull(p_new->it_value.tv_usec), 180 p_old, sprintrc(rc)); 181 182 puts("+++ exited with 0 +++"); 183 return 0; 184 } 185
