1 /*
2 * Check decoding of io_* syscalls.
3 *
4 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@strace.io>
5 * Copyright (c) 2015-2023 The strace developers.
6 * All rights reserved.
7 *
8 * SPDX-License-Identifier: GPL-2.0-or-later
9 */
10
11 #include "tests.h"
12 #include "scno.h"
13
14 #ifdef __NR_io_getevents
15 # include <fcntl.h>
16 # include <inttypes.h>
17 # include <stdio.h>
18 # include <time.h>
19 # include <unistd.h>
20 # include <linux/aio_abi.h>
21
22 int
23 main(void)
24 {
25 static const long bogus_ctx =
26 (long) 0xface1e55deadbeefLL;
27
28 static const char data2[] =
29 "\0\1\2\3cat test test test 0123456789abcdef";
30
31 const unsigned int sizeof_data0 = 4096;
32 const unsigned int sizeof_data1 = 8192;
33 void *data0 = tail_alloc(sizeof_data0);
34 void *data1 = tail_alloc(sizeof_data1);
35
36 const struct iocb proto_cb[] = {
37 {
38 .aio_data = (unsigned long) 0xfeedface11111111ULL,
39 .aio_reqprio = 11,
40 .aio_buf = (unsigned long) data0,
41 .aio_offset = (unsigned long) 0xdeface1facefeedULL,
42 .aio_nbytes = sizeof_data0
43 },
44 {
45 .aio_data = (unsigned long) 0xfeedface22222222ULL,
46 .aio_reqprio = 22,
47 .aio_buf = (unsigned long) data1,
48 .aio_offset = (unsigned long) 0xdeface2cafef00dULL,
49 .aio_nbytes = sizeof_data1
50 }
51 };
52 const struct iocb *cb = tail_memdup(proto_cb, sizeof(proto_cb));
53
54 const struct iovec proto_iov0[] = {
55 {
56 .iov_base = data0,
57 .iov_len = sizeof_data0 / 4
58 },
59 {
60 .iov_base = data0 + sizeof_data0 / 4,
61 .iov_len = sizeof_data0 / 4 * 3
62 },
63 };
64 const struct iovec *iov0 = tail_memdup(proto_iov0, sizeof(proto_iov0));
65
66 const struct iovec proto_iov1[] = {
67 {
68 .iov_base = data1,
69 .iov_len = sizeof_data1 / 4
70 },
71 {
72 .iov_base = data1 + sizeof_data1 / 4,
73 .iov_len = sizeof_data1 / 4 * 3
74 },
75 };
76 const struct iovec *iov1 = tail_memdup(proto_iov1, sizeof(proto_iov1));
77
78 const struct iocb proto_cbv[] = {
79 {
80 .aio_data = (unsigned long) 0xfeed11111111faceULL,
81 .aio_lio_opcode = 7,
82 .aio_reqprio = 111,
83 .aio_buf = (unsigned long) iov0,
84 .aio_offset = (unsigned long) 0xdeface1facefeedULL,
85 .aio_nbytes = ARRAY_SIZE(proto_iov0)
86 },
87 {
88 .aio_data = (unsigned long) 0xfeed22222222faceULL,
89 .aio_lio_opcode = 7,
90 .aio_reqprio = 222,
91 .aio_buf = (unsigned long) iov1,
92 .aio_offset = (unsigned long) 0xdeface2cafef00dULL,
93 .aio_nbytes = ARRAY_SIZE(proto_iov1)
94 }
95 };
96 const struct iocb *cbv = tail_memdup(proto_cbv, sizeof(proto_cbv));
97
98 /* For additional decoder testing */
99 const struct iocb proto_cbv2[] = {
100 {
101 .aio_data = 0xbadfacedc0ffeeedULL,
102 .aio_key = 0xdefaced0,
103 .aio_lio_opcode = 0xf00d,
104 .aio_reqprio = 0,
105 .aio_fildes = 0xdefaced1,
106 .aio_buf = 0,
107 },
108 {
109 .aio_data = 0,
110 .aio_key = 0xdefaced0,
111 .aio_lio_opcode = 1,
112 .aio_reqprio = 0xbeef,
113 .aio_fildes = 0xdefaced1,
114 .aio_buf = 0,
115 /* In order to make record valid */
116 .aio_nbytes = (size_t) 0x1020304050607080ULL,
117 .aio_offset = 0xdeadda7abadc0dedULL,
118 # ifdef HAVE_STRUCT_IOCB_AIO_FLAGS
119 .aio_flags = 0xfacef157,
120 .aio_resfd = 0xded1ca7e,
121 # endif
122 },
123 {
124 .aio_data = 0,
125 .aio_key = 0xdefaced0,
126 .aio_lio_opcode = 1,
127 .aio_reqprio = 0xbeef,
128 .aio_fildes = 0xdefaced1,
129 .aio_buf = 0xbadc0ffeedefacedULL,
130 .aio_nbytes = 0x8090a0b0c0d0e0f0ULL,
131 .aio_offset = 0xdeadda7abadc0dedULL,
132 },
133 {
134 .aio_data = 0,
135 .aio_key = 0xdefaced0,
136 .aio_lio_opcode = 1,
137 .aio_reqprio = 0xbeef,
138 .aio_fildes = 0xdefaced1,
139 .aio_buf = (unsigned long)data2,
140 .aio_nbytes = sizeof(data2),
141 .aio_offset = 0xdeadda7abadc0dedULL,
142 },
143 {
144 .aio_data = 0,
145 .aio_key = 0xdefaced0,
146 .aio_lio_opcode = 8,
147 .aio_reqprio = 0xbeef,
148 .aio_fildes = 0xdefaced1,
149 .aio_buf = 0,
150 .aio_nbytes = 0x8090a0b0c0d0e0f0ULL,
151 .aio_offset = 0xdeadda7abadc0dedULL,
152 },
153 };
154 const struct iocb *cbv2 = tail_memdup(proto_cbv2, sizeof(proto_cbv2));
155
156 const struct iocb proto_cbc = {
157 .aio_data = (unsigned long) 0xdeadbeefbadc0dedULL,
158 .aio_reqprio = 99,
159 .aio_fildes = -42
160 };
161 const struct iocb *cbc = tail_memdup(&proto_cbc, sizeof(proto_cbc));
162
163 const long proto_cbs[] = {
164 (long) &cb[0], (long) &cb[1]
165 };
166 const long *cbs = tail_memdup(proto_cbs, sizeof(proto_cbs));
167
168 const long proto_cbvs[] = {
169 (long) &cbv[0], (long) &cbv[1],
170 };
171 const long *cbvs = tail_memdup(proto_cbvs, sizeof(proto_cbvs));
172
173 const long proto_cbvs2[] = {
174 (long) &cbv2[0], (long) &cbv2[1], (long) &cbv2[2],
175 (long) &cbv2[3], (long) &cbv2[4],
176 (long) NULL, (long) 0xffffffffffffffffLL,
177 };
178 const long *cbvs2 = tail_memdup(proto_cbvs2, sizeof(proto_cbvs2));
179
180 TAIL_ALLOC_OBJECT_CONST_PTR(unsigned long, ctx);
181 *ctx = 0;
182
183 const unsigned int nr = ARRAY_SIZE(proto_cb);
184 const unsigned long lnr = (unsigned long) (0xdeadbeef00000000ULL | nr);
185
186 const struct io_event *ev = tail_alloc(nr * sizeof(struct io_event));
187 TAIL_ALLOC_OBJECT_CONST_PTR(kernel_old_timespec_t, ts);
188
189 (void) close(0);
190 if (open("/dev/zero", O_RDONLY))
191 perror_msg_and_skip("open: %s", "/dev/zero");
192
193 long rc = syscall(__NR_io_setup, 0xdeadbeef, NULL);
194 printf("io_setup(%u, NULL) = %s\n", 0xdeadbeef, sprintrc(rc));
195
196 rc = syscall(__NR_io_setup, lnr, ctx + 1);
197 printf("io_setup(%u, %p) = %s\n", nr, ctx + 1, sprintrc(rc));
198
199 if (syscall(__NR_io_setup, lnr, ctx))
200 perror_msg_and_skip("io_setup");
201 printf("io_setup(%u, [%#lx]) = 0\n", nr, *ctx);
202
203 rc = syscall(__NR_io_submit, bogus_ctx, (long) 0xca7faceddeadf00dLL,
204 NULL);
205 printf("io_submit(%#lx, %ld, NULL) = %s\n",
206 bogus_ctx, (long) 0xca7faceddeadf00dLL, sprintrc(rc));
207
208 rc = syscall(__NR_io_submit, *ctx, nr, cbs + nr);
209 printf("io_submit(%#lx, %ld, %p) = %s\n",
210 *ctx, (long) nr, cbs + nr, sprintrc(rc));
211
212 rc = syscall(__NR_io_submit, *ctx, -1L, cbs);
213 printf("io_submit(%#lx, -1, %p) = %s\n",
214 *ctx, cbs, sprintrc(rc));
215
216 rc = syscall(__NR_io_submit, *ctx, nr, cbs);
217 if (rc != (long) nr)
218 perror_msg_and_skip("io_submit");
219 printf("io_submit(%#lx, %u, ["
220 "{aio_data=%#" PRI__x64 ", aio_lio_opcode=IOCB_CMD_PREAD"
221 ", aio_reqprio=11, aio_fildes=0, aio_buf=%p, aio_nbytes=%u"
222 ", aio_offset=%" PRI__d64
223 "}, {aio_data=%#" PRI__x64 ", aio_lio_opcode=IOCB_CMD_PREAD"
224 ", aio_reqprio=22, aio_fildes=0, aio_buf=%p, aio_nbytes=%u"
225 ", aio_offset=%" PRI__d64 "}]) = %s\n",
226 *ctx, nr,
227 cb[0].aio_data, data0, sizeof_data0, cb[0].aio_offset,
228 cb[1].aio_data, data1, sizeof_data1, cb[1].aio_offset,
229 sprintrc(rc));
230
231 rc = syscall(__NR_io_getevents, bogus_ctx,
232 (long) 0xca7faceddeadf00dLL, (long) 0xba5e1e505ca571e0LL,
233 ev + 1, NULL);
234 printf("io_getevents(%#lx, %ld, %ld, %p, NULL) = %s\n",
235 bogus_ctx, (long) 0xca7faceddeadf00dLL,
236 (long) 0xba5e1e505ca571e0LL, ev + 1, sprintrc(rc));
237
238 rc = syscall(__NR_io_getevents, bogus_ctx,
239 (long) 0xca7faceddeadf00dLL, (long) 0xba5e1e505ca571e0LL,
240 NULL, ts + 1);
241 printf("io_getevents(%#lx, %ld, %ld, NULL, %p) = %s\n",
242 bogus_ctx, (long) 0xca7faceddeadf00dLL,
243 (long) 0xba5e1e505ca571e0LL, ts + 1, sprintrc(rc));
244
245 ts->tv_sec = 0xdeadbeefU;
246 ts->tv_nsec = 0xfacefeedU;
247 rc = syscall(__NR_io_getevents, bogus_ctx, 0, 0, 0, ts);
248 printf("io_getevents(%#lx, 0, 0, NULL"
249 ", {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
250 bogus_ctx, (long long) ts->tv_sec,
251 zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc));
252
253 ts->tv_sec = (typeof(ts->tv_sec)) 0xcafef00ddeadbeefLL;
254 ts->tv_nsec = (long) 0xbadc0dedfacefeedLL;
255 rc = syscall(__NR_io_getevents, bogus_ctx, 0, 0, 0, ts);
256 printf("io_getevents(%#lx, 0, 0, NULL"
257 ", {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
258 bogus_ctx, (long long) ts->tv_sec,
259 zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc));
260
261 ts->tv_sec = 0;
262 ts->tv_nsec = 123456789;
263 rc = syscall(__NR_io_getevents, *ctx, nr, nr + 1, ev, ts);
264 printf("io_getevents(%#lx, %ld, %ld, ["
265 "{data=%#" PRI__x64 ", obj=%p, res=%u, res2=0}, "
266 "{data=%#" PRI__x64 ", obj=%p, res=%u, res2=0}"
267 "], {tv_sec=0, tv_nsec=123456789}) = %s\n",
268 *ctx, (long) nr, (long) (nr + 1),
269 cb[0].aio_data, &cb[0], sizeof_data0,
270 cb[1].aio_data, &cb[1], sizeof_data1,
271 sprintrc(rc));
272
273 rc = syscall(__NR_io_cancel, bogus_ctx, NULL, NULL);
274 printf("io_cancel(%#lx, NULL, NULL) = %s\n", bogus_ctx, sprintrc(rc));
275
276 rc = syscall(__NR_io_cancel, *ctx, cbc + 1, ev);
277 printf("io_cancel(%#lx, %p, %p) = %s\n", *ctx, cbc + 1, ev,
278 sprintrc(rc));
279
280 rc = syscall(__NR_io_cancel, *ctx, cbc, ev);
281 printf("io_cancel(%#lx, {aio_data=%#" PRI__x64
282 ", aio_lio_opcode=IOCB_CMD_PREAD, aio_reqprio=99"
283 ", aio_fildes=-42}, %p) = %s\n",
284 *ctx, cbc->aio_data, ev, sprintrc(rc));
285
286 rc = syscall(__NR_io_submit, (unsigned long) 0xfacef157beeff00dULL,
287 (long) 0xdeadc0defacefeedLL, NULL);
288 printf("io_submit(%#lx, %ld, NULL) = %s\n",
289 (long) 0xfacef157beeff00dULL,
290 (long) 0xdeadc0defacefeedLL, sprintrc(rc));
291
292 rc = syscall(__NR_io_submit, *ctx, -1L, cbvs + nr);
293 printf("io_submit(%#lx, %ld, %p) = %s\n",
294 *ctx, -1L, cbvs + nr, sprintrc(rc));
295
296 printf("io_submit(%#lx, %ld, ["
297 "{aio_data=%#" PRI__x64 ", aio_key=%u"
298 ", aio_lio_opcode=%hu /* IOCB_CMD_??? */, aio_fildes=%d}"
299 ", {aio_data=0, aio_key=%u, aio_lio_opcode=IOCB_CMD_PWRITE"
300 ", aio_reqprio=IOPRIO_PRIO_VALUE(0x5 /* IOPRIO_CLASS_??? */"
301 ", 7919), aio_fildes=%d, aio_buf=NULL"
302 ", aio_nbytes=%" PRI__u64 ", aio_offset=%" PRI__d64
303 # ifdef HAVE_STRUCT_IOCB_AIO_FLAGS
304 ", aio_flags=IOCB_FLAG_RESFD|IOCB_FLAG_IOPRIO|%#x, aio_resfd=%d"
305 # endif
306 "}, {aio_data=0, aio_key=%u, aio_lio_opcode=IOCB_CMD_PWRITE"
307 ", aio_reqprio=%hd, aio_fildes=%d, aio_buf=%#" PRI__x64
308 ", aio_nbytes=%" PRI__u64 ", aio_offset=%" PRI__d64
309 "}, {aio_data=0, aio_key=%u, aio_lio_opcode=IOCB_CMD_PWRITE"
310 ", aio_reqprio=%hd, aio_fildes=%d"
311 ", aio_buf=\"\\0\\1\\2\\3%.28s\"..."
312 ", aio_nbytes=%" PRI__u64 ", aio_offset=%" PRI__d64
313 "}, {aio_data=0, aio_key=%u, aio_lio_opcode=IOCB_CMD_PWRITEV"
314 ", aio_reqprio=%hd, aio_fildes=%d, aio_buf=%#" PRI__x64
315 ", aio_nbytes=%" PRI__u64 ", aio_offset=%" PRI__d64
316 "}, NULL, %#lx, ... /* %p */]) = ",
317 *ctx, 1057L,
318 cbv2[0].aio_data, cbv2[0].aio_key,
319 cbv2[0].aio_lio_opcode, cbv2[0].aio_fildes,
320 cbv2[1].aio_key, cbv2[1].aio_fildes,
321 cbv2[1].aio_nbytes, cbv2[1].aio_offset,
322 # ifdef HAVE_STRUCT_IOCB_AIO_FLAGS
323 cbv2[1].aio_flags & ~3, cbv2[1].aio_resfd,
324 # endif
325 cbv2[2].aio_key, cbv2[2].aio_reqprio, cbv2[2].aio_fildes,
326 cbv2[2].aio_buf, cbv2[2].aio_nbytes, cbv2[2].aio_offset,
327 cbv2[3].aio_key, cbv2[3].aio_reqprio, cbv2[3].aio_fildes,
328 data2 + 4, cbv2[3].aio_nbytes, cbv2[3].aio_offset,
329 cbv2[4].aio_key, cbv2[4].aio_reqprio, cbv2[4].aio_fildes,
330 cbv2[4].aio_buf, cbv2[4].aio_nbytes, cbv2[4].aio_offset,
331 cbvs2[6], cbvs2 + 7);
332 rc = syscall(__NR_io_submit, *ctx, 1057L, cbvs2);
333 puts(sprintrc(rc));
334
335 rc = syscall(__NR_io_submit, *ctx, nr, cbvs);
336 if (rc != (long) nr)
337 perror_msg_and_skip("io_submit");
338 printf("io_submit(%#lx, %u, ["
339 "{aio_data=%#" PRI__x64 ", aio_lio_opcode=IOCB_CMD_PREADV"
340 ", aio_reqprio=%hd, aio_fildes=0, "
341 "aio_buf=[{iov_base=%p, iov_len=%u}"
342 ", {iov_base=%p, iov_len=%u}], aio_offset=%" PRI__d64 "}, "
343 "{aio_data=%#" PRI__x64 ", aio_lio_opcode=IOCB_CMD_PREADV"
344 ", aio_reqprio=%hd, aio_fildes=0"
345 ", aio_buf=[{iov_base=%p, iov_len=%u}"
346 ", {iov_base=%p, iov_len=%u}], aio_offset=%" PRI__d64 "}"
347 "]) = %s\n",
348 *ctx, nr,
349 cbv[0].aio_data, cbv[0].aio_reqprio,
350 iov0[0].iov_base, (unsigned int) iov0[0].iov_len,
351 iov0[1].iov_base, (unsigned int) iov0[1].iov_len,
352 cbv[0].aio_offset,
353 cbv[1].aio_data, cbv[1].aio_reqprio,
354 iov1[0].iov_base, (unsigned int) iov1[0].iov_len,
355 iov1[1].iov_base, (unsigned int) iov1[1].iov_len,
356 cbv[1].aio_offset,
357 sprintrc(rc));
358
359 rc = syscall(__NR_io_destroy, bogus_ctx);
360 printf("io_destroy(%#lx) = %s\n",
361 bogus_ctx, sprintrc(rc));
362
363 rc = syscall(__NR_io_destroy, *ctx);
364 printf("io_destroy(%#lx) = %s\n", *ctx, sprintrc(rc));
365
366 puts("+++ exited with 0 +++");
367 return 0;
368 }
369
370 #else
371
372 SKIP_MAIN_UNDEFINED("__NR_io_getevents")
373
374 #endif