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
|
/*
* Check decoding of io_pgetevents syscall.
*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2015-2024 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <unistd.h>
#include "scno.h"
#ifdef __NR_io_pgetevents
# include <fcntl.h>
# include <inttypes.h>
# include <stdio.h>
# include <time.h>
# include "nsig.h"
# include <linux/aio_abi.h>
# ifndef HAVE_STRUCT___AIO_SIGSET
struct __aio_sigset {
sigset_t *sigmask;
size_t sigsetsize;
};
# endif
static const char *errstr;
static long
sys_io_pgetevents(const kernel_ulong_t ctx_id,
const kernel_long_t min_nr,
const kernel_long_t nr,
const kernel_ulong_t events,
const kernel_ulong_t timeout,
const kernel_ulong_t usig)
{
long rc = syscall(__NR_io_pgetevents, ctx_id, min_nr, nr,
events, timeout, usig);
errstr = sprintrc(rc);
return rc;
}
int
main(void)
{
static const kernel_ulong_t bogus_ctx =
(kernel_ulong_t) 0xface1e55deadbeefLL;
static const kernel_long_t bogus_min_nr =
(kernel_long_t) 0xca7faceddeadf00dLL;
static const kernel_long_t bogus_nr =
(kernel_long_t) 0xba5e1e505ca571e0LL;
static const size_t bogus_sigsetsize =
(size_t) 0xdeadbeefbadcaffeULL;
const unsigned int sizeof_data0 = 4096;
const unsigned int sizeof_data1 = 8192;
void *data0 = tail_alloc(sizeof_data0);
void *data1 = tail_alloc(sizeof_data1);
const struct iocb proto_cb[] = {
{
.aio_data = (unsigned long) 0xfeedface11111111ULL,
.aio_reqprio = 11,
.aio_buf = (unsigned long) data0,
.aio_offset = (unsigned long) 0xdeface1facefeedULL,
.aio_nbytes = sizeof_data0
},
{
.aio_data = (unsigned long) 0xfeedface22222222ULL,
.aio_reqprio = 22,
.aio_buf = (unsigned long) data1,
.aio_offset = (unsigned long) 0xdeface2cafef00dULL,
.aio_nbytes = sizeof_data1
}
};
const struct iocb *cb = tail_memdup(proto_cb, sizeof(proto_cb));
const long proto_cbs[] = {
(long) &cb[0], (long) &cb[1]
};
const long *cbs = tail_memdup(proto_cbs, sizeof(proto_cbs));
TAIL_ALLOC_OBJECT_CONST_PTR(unsigned long, ctx);
*ctx = 0;
const unsigned int nr = ARRAY_SIZE(proto_cb);
TAIL_ALLOC_OBJECT_CONST_ARR(const struct io_event, ev, nr);
TAIL_ALLOC_OBJECT_CONST_PTR(kernel_old_timespec_t, ts);
TAIL_ALLOC_OBJECT_CONST_PTR(struct __aio_sigset, ss);
TAIL_ALLOC_OBJECT_CONST_PTR(sigset_t, sigs);
(void) close(0);
if (open("/dev/zero", O_RDONLY))
perror_msg_and_skip("open: %s", "/dev/zero");
if (syscall(__NR_io_setup, nr, ctx))
perror_msg_and_skip("io_setup");
if (syscall(__NR_io_submit, *ctx, nr, cbs) != (long) nr)
perror_msg_and_skip("io_submit");
sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
(uintptr_t) (ev + 1), 0, 0);
printf("io_pgetevents(%#jx, %ld, %ld, %p, NULL, NULL) = %s\n",
(uintmax_t) bogus_ctx, (long) bogus_min_nr,
(long) bogus_nr, ev + 1, errstr);
sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
0, (uintptr_t) (ts + 1), 0);
printf("io_pgetevents(%#jx, %ld, %ld, NULL, %p, NULL) = %s\n",
(uintmax_t) bogus_ctx, (long) bogus_min_nr,
(long) bogus_nr, ts + 1, errstr);
sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
0, 0, (uintptr_t) (ss + 1));
printf("io_pgetevents(%#jx, %ld, %ld, NULL, NULL, %p) = %s\n",
(uintmax_t) bogus_ctx, (long) bogus_min_nr,
(long) bogus_nr, ss + 1, errstr);
ss->sigmask = sigs + 1;
ss->sigsetsize = bogus_sigsetsize;
sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
0, 0, (uintptr_t) ss);
printf("io_pgetevents(%#jx, %ld, %ld, NULL, NULL"
", {sigmask=%p, sigsetsize=%zu}) = %s\n",
(uintmax_t) bogus_ctx, (long) bogus_min_nr,
(long) bogus_nr, sigs + 1, bogus_sigsetsize, errstr);
ts->tv_sec = 0xdeadbeefU;
ts->tv_nsec = 0xfacefeedU;
ss->sigmask = sigs;
ss->sigsetsize = NSIG_BYTES;
sys_io_pgetevents(bogus_ctx, 0, 0, 0, (uintptr_t) ts, (uintptr_t) ss);
printf("io_pgetevents(%#jx, 0, 0, NULL"
", {tv_sec=%lld, tv_nsec=%llu}"
", {sigmask=~[], sigsetsize=%u}) = %s\n",
(uintmax_t) bogus_ctx, (long long) ts->tv_sec,
zero_extend_signed_to_ull(ts->tv_nsec), NSIG_BYTES,
errstr);
sigemptyset(sigs);
sigaddset(sigs, SIGSYS);
ts->tv_sec = (typeof(ts->tv_sec)) 0xcafef00ddeadbeefLL;
ts->tv_nsec = (long) 0xbadc0dedfacefeedLL;
sys_io_pgetevents(bogus_ctx, 0, 0, 0, (uintptr_t) ts, (uintptr_t) ss);
printf("io_pgetevents(%#jx, 0, 0, NULL"
", {tv_sec=%lld, tv_nsec=%llu}"
", {sigmask=[SYS], sigsetsize=%u}) = %s\n",
(uintmax_t) bogus_ctx, (long long) ts->tv_sec,
zero_extend_signed_to_ull(ts->tv_nsec), NSIG_BYTES,
errstr);
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_io_pgetevents")
#endif
|
