1 /*
2 * Check decoding of io_pgetevents syscall.
3 *
4 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Copyright (c) 2015-2018 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 #include <unistd.h>
33 #include <asm/unistd.h>
34 #include "scno.h"
35
36 #if defined __NR_io_setup && defined __NR_io_pgetevents
37
38 # include <fcntl.h>
39 # include <inttypes.h>
40 # include <stdio.h>
41 # include <time.h>
42
43 # include "nsig.h"
44
45 # include <linux/aio_abi.h>
46
47 # if !HAVE_STRUCT___AIO_SIGSET
48 struct __aio_sigset {
49 sigset_t *sigmask;
50 size_t sigsetsize;
51 };
52 # endif
53
54 static const char *errstr;
55
56 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)57 sys_io_pgetevents(const kernel_ulong_t ctx_id,
58 const kernel_long_t min_nr,
59 const kernel_long_t nr,
60 const kernel_ulong_t events,
61 const kernel_ulong_t timeout,
62 const kernel_ulong_t usig)
63 {
64 long rc = syscall(__NR_io_pgetevents, ctx_id, min_nr, nr,
65 events, timeout, usig);
66 errstr = sprintrc(rc);
67 return rc;
68 }
69
70 int
main(void)71 main(void)
72 {
73 static const kernel_ulong_t bogus_ctx =
74 (kernel_ulong_t) 0xface1e55deadbeefLL;
75 static const kernel_long_t bogus_min_nr =
76 (kernel_long_t) 0xca7faceddeadf00dLL;
77 static const kernel_long_t bogus_nr =
78 (kernel_long_t) 0xba5e1e505ca571e0LL;
79 static const size_t bogus_sigsetsize =
80 (size_t) 0xdeadbeefbadcaffeULL;
81
82 const unsigned int sizeof_data0 = 4096;
83 const unsigned int sizeof_data1 = 8192;
84 void *data0 = tail_alloc(sizeof_data0);
85 void *data1 = tail_alloc(sizeof_data1);
86
87 const struct iocb proto_cb[] = {
88 {
89 .aio_data = (unsigned long) 0xfeedface11111111ULL,
90 .aio_reqprio = 11,
91 .aio_buf = (unsigned long) data0,
92 .aio_offset = (unsigned long) 0xdeface1facefeedULL,
93 .aio_nbytes = sizeof_data0
94 },
95 {
96 .aio_data = (unsigned long) 0xfeedface22222222ULL,
97 .aio_reqprio = 22,
98 .aio_buf = (unsigned long) data1,
99 .aio_offset = (unsigned long) 0xdeface2cafef00dULL,
100 .aio_nbytes = sizeof_data1
101 }
102 };
103 const struct iocb *cb = tail_memdup(proto_cb, sizeof(proto_cb));
104
105 const long proto_cbs[] = {
106 (long) &cb[0], (long) &cb[1]
107 };
108 const long *cbs = tail_memdup(proto_cbs, sizeof(proto_cbs));
109
110 TAIL_ALLOC_OBJECT_CONST_PTR(unsigned long, ctx);
111 *ctx = 0;
112
113 const unsigned int nr = ARRAY_SIZE(proto_cb);
114
115 const struct io_event *ev = tail_alloc(nr * sizeof(struct io_event));
116 TAIL_ALLOC_OBJECT_CONST_PTR(struct timespec, ts);
117 TAIL_ALLOC_OBJECT_CONST_PTR(struct __aio_sigset, ss);
118 TAIL_ALLOC_OBJECT_CONST_PTR(sigset_t, sigs);
119
120 (void) close(0);
121 if (open("/dev/zero", O_RDONLY))
122 perror_msg_and_skip("open: %s", "/dev/zero");
123
124 if (syscall(__NR_io_setup, nr, ctx))
125 perror_msg_and_skip("io_setup");
126
127 if (syscall(__NR_io_submit, *ctx, nr, cbs) != (long) nr)
128 perror_msg_and_skip("io_submit");
129
130 sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
131 (uintptr_t) (ev + 1), 0, 0);
132 printf("io_pgetevents(%#jx, %ld, %ld, %p, NULL, NULL) = %s\n",
133 (uintmax_t) bogus_ctx, (long) bogus_min_nr,
134 (long) bogus_nr, ev + 1, errstr);
135
136 sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
137 0, (uintptr_t) (ts + 1), 0);
138 printf("io_pgetevents(%#jx, %ld, %ld, NULL, %p, NULL) = %s\n",
139 (uintmax_t) bogus_ctx, (long) bogus_min_nr,
140 (long) bogus_nr, ts + 1, errstr);
141
142 sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
143 0, 0, (uintptr_t) (ss + 1));
144 printf("io_pgetevents(%#jx, %ld, %ld, NULL, NULL, %p) = %s\n",
145 (uintmax_t) bogus_ctx, (long) bogus_min_nr,
146 (long) bogus_nr, ss + 1, errstr);
147
148 ss->sigmask = sigs + 1;
149 ss->sigsetsize = bogus_sigsetsize;
150 sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
151 0, 0, (uintptr_t) ss);
152 printf("io_pgetevents(%#jx, %ld, %ld, NULL, NULL"
153 ", {sigmask=%p, sigsetsize=%zu}) = %s\n",
154 (uintmax_t) bogus_ctx, (long) bogus_min_nr,
155 (long) bogus_nr, sigs + 1, bogus_sigsetsize, errstr);
156
157 ts->tv_sec = 0xdeadbeefU;
158 ts->tv_nsec = 0xfacefeedU;
159 ss->sigmask = sigs;
160 ss->sigsetsize = NSIG_BYTES;
161 sys_io_pgetevents(bogus_ctx, 0, 0, 0, (uintptr_t) ts, (uintptr_t) ss);
162 printf("io_pgetevents(%#jx, 0, 0, NULL"
163 ", {tv_sec=%lld, tv_nsec=%llu}"
164 ", {sigmask=~[], sigsetsize=%u}) = %s\n",
165 (uintmax_t) bogus_ctx, (long long) ts->tv_sec,
166 zero_extend_signed_to_ull(ts->tv_nsec), NSIG_BYTES,
167 errstr);
168
169 sigemptyset(sigs);
170 sigaddset(sigs, SIGSYS);
171
172 ts->tv_sec = (time_t) 0xcafef00ddeadbeefLL;
173 ts->tv_nsec = (long) 0xbadc0dedfacefeedLL;
174 sys_io_pgetevents(bogus_ctx, 0, 0, 0, (uintptr_t) ts, (uintptr_t) ss);
175 printf("io_pgetevents(%#jx, 0, 0, NULL"
176 ", {tv_sec=%lld, tv_nsec=%llu}"
177 ", {sigmask=[SYS], sigsetsize=%u}) = %s\n",
178 (uintmax_t) bogus_ctx, (long long) ts->tv_sec,
179 zero_extend_signed_to_ull(ts->tv_nsec), NSIG_BYTES,
180 errstr);
181
182 puts("+++ exited with 0 +++");
183 return 0;
184 }
185
186 #else
187
188 SKIP_MAIN_UNDEFINED("__NR_io_setup && __NR_io_pgetevents")
189
190 #endif
191