1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*
* Check decoding of setitimer and getitimer syscalls.
*
* Copyright (c) 2015-2018 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2015-2020 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <stdio.h>
#include <stdint.h>
#include <sys/time.h>
#include <unistd.h>
#include "scno.h"
#include "kernel_timeval.h"
typedef struct {
kernel_old_timeval_t it_interval;
kernel_old_timeval_t it_value;
} kernel_old_itimerval_t;
int
main(void)
{
static const kernel_old_itimerval_t new = {
.it_interval = { 0xc0de1, 0xc0de2 },
.it_value = { 0xc0de3, 0xc0de4 }
};
static const kernel_ulong_t long_timer =
F8ILL_KULONG_MASK | ITIMER_REAL;
static const kernel_ulong_t bogus_timer =
(kernel_ulong_t) 0xfacefeeddeadbeefULL;
TAIL_ALLOC_OBJECT_CONST_PTR(kernel_old_itimerval_t, p_old);
kernel_old_itimerval_t *const p_new = tail_memdup(&new, sizeof(new));
void *const efault = tail_alloc(sizeof(new) - 8);
long rc;
if (syscall(__NR_setitimer, ITIMER_REAL, p_new, NULL))
perror_msg_and_skip("setitimer");
printf("setitimer(ITIMER_REAL"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}"
", NULL) = 0\n",
(long long) new.it_interval.tv_sec,
zero_extend_signed_to_ull(new.it_interval.tv_usec),
(long long) new.it_value.tv_sec,
zero_extend_signed_to_ull(new.it_value.tv_usec));
fill_memory(p_old, sizeof(*p_old));
if (syscall(__NR_getitimer, ITIMER_REAL, p_old))
perror_msg_and_skip("getitimer");
printf("getitimer(ITIMER_REAL"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}) = 0\n",
(long long) p_old->it_interval.tv_sec,
zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
(long long) p_old->it_value.tv_sec,
zero_extend_signed_to_ull(p_old->it_value.tv_usec));
fill_memory(p_old, sizeof(*p_old));
syscall(__NR_setitimer, ITIMER_REAL, p_new, p_old);
printf("setitimer(ITIMER_REAL"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}) = 0\n",
(long long) new.it_interval.tv_sec,
zero_extend_signed_to_ull(new.it_interval.tv_usec),
(long long) new.it_value.tv_sec,
zero_extend_signed_to_ull(new.it_value.tv_usec),
(long long) p_old->it_interval.tv_sec,
zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
(long long) p_old->it_value.tv_sec,
zero_extend_signed_to_ull(p_old->it_value.tv_usec));
rc = syscall(__NR_getitimer, ITIMER_REAL, efault);
printf("getitimer(ITIMER_REAL, %p) = %s\n", efault, sprintrc(rc));
rc = syscall(__NR_setitimer, ITIMER_REAL, p_new, efault);
printf("setitimer(ITIMER_REAL"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n",
(long long) new.it_interval.tv_sec,
zero_extend_signed_to_ull(new.it_interval.tv_usec),
(long long) new.it_value.tv_sec,
zero_extend_signed_to_ull(new.it_value.tv_usec),
efault, sprintrc(rc));
rc = syscall(__NR_setitimer, ITIMER_REAL, efault, p_old);
printf("setitimer(ITIMER_REAL, %p, %p) = %s\n",
efault, p_old, sprintrc(rc));
fill_memory(p_old, sizeof(*p_old));
rc = syscall(__NR_setitimer, long_timer, p_new, p_old);
printf("setitimer(ITIMER_REAL"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}) = %s\n",
(long long) new.it_interval.tv_sec,
zero_extend_signed_to_ull(new.it_interval.tv_usec),
(long long) new.it_value.tv_sec,
zero_extend_signed_to_ull(new.it_value.tv_usec),
(long long) p_old->it_interval.tv_sec,
zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
(long long) p_old->it_value.tv_sec,
zero_extend_signed_to_ull(p_old->it_value.tv_usec),
sprintrc(rc));
fill_memory(p_old, sizeof(*p_old));
rc = syscall(__NR_getitimer, long_timer, p_old);
printf("getitimer(ITIMER_REAL"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}) = %s\n",
(long long) p_old->it_interval.tv_sec,
zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
(long long) p_old->it_value.tv_sec,
zero_extend_signed_to_ull(p_old->it_value.tv_usec),
sprintrc(rc));
rc = syscall(__NR_setitimer, bogus_timer, p_new, p_old);
printf("setitimer(%#x /* ITIMER_??? */"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n",
(int) bogus_timer,
(long long) new.it_interval.tv_sec,
zero_extend_signed_to_ull(new.it_interval.tv_usec),
(long long) new.it_value.tv_sec,
zero_extend_signed_to_ull(new.it_value.tv_usec),
p_old, sprintrc(rc));
rc = syscall(__NR_getitimer, bogus_timer, p_old);
printf("getitimer(%#x /* ITIMER_??? */, %p) = %s\n",
(int) bogus_timer, p_old, sprintrc(rc));
if (F8ILL_KULONG_SUPPORTED) {
const kernel_ulong_t ill_new = f8ill_ptr_to_kulong(p_new);
const kernel_ulong_t ill_old = f8ill_ptr_to_kulong(p_old);
rc = syscall(__NR_setitimer, long_timer, ill_new, ill_old);
printf("setitimer(ITIMER_REAL, %#llx, %#llx) = %s\n",
(unsigned long long) ill_new,
(unsigned long long) ill_old,
sprintrc(rc));
rc = syscall(__NR_getitimer, long_timer, ill_old);
printf("getitimer(ITIMER_REAL, %#llx) = %s\n",
(unsigned long long) ill_old, sprintrc(rc));
}
p_new->it_interval.tv_sec = 0xdeadbeefU;
p_new->it_interval.tv_usec = 0xfacefeedU;
p_new->it_value.tv_sec =
(typeof(p_new->it_value.tv_sec)) 0xcafef00ddeadbeefLL;
p_new->it_value.tv_usec =
(typeof(p_new->it_value.tv_usec)) 0xbadc0dedfacefeedLL;
rc = syscall(__NR_setitimer, ITIMER_REAL, p_new, p_old);
printf("setitimer(ITIMER_REAL"
", {it_interval={tv_sec=%lld, tv_usec=%llu}"
", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n",
(long long) p_new->it_interval.tv_sec,
zero_extend_signed_to_ull(p_new->it_interval.tv_usec),
(long long) p_new->it_value.tv_sec,
zero_extend_signed_to_ull(p_new->it_value.tv_usec),
p_old, sprintrc(rc));
puts("+++ exited with 0 +++");
return 0;
}
|
