1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
4 * Horst Hummel <Horst.Hummel@de.ibm.com>
5 * Carsten Otte <Cotte@de.ibm.com>
6 * Martin Schwidefsky <schwidefsky@de.ibm.com>
7 * Bugreports.to..: <Linux390@de.ibm.com>
8 * Copyright IBM Corp. 1999, 2001
9 *
10 * i/o controls for the dasd driver.
11 */
12
13 #define KMSG_COMPONENT "dasd"
14
15 #include <linux/interrupt.h>
16 #include <linux/compat.h>
17 #include <linux/major.h>
18 #include <linux/fs.h>
19 #include <linux/blkpg.h>
20 #include <linux/slab.h>
21 #include <asm/ccwdev.h>
22 #include <asm/schid.h>
23 #include <asm/cmb.h>
24 #include <linux/uaccess.h>
25 #include <linux/dasd_mod.h>
26
27 /* This is ugly... */
28 #define PRINTK_HEADER "dasd_ioctl:"
29
30 #include "dasd_int.h"
31
32
33 static int
dasd_ioctl_api_version(void __user * argp)34 dasd_ioctl_api_version(void __user *argp)
35 {
36 int ver = DASD_API_VERSION;
37 return put_user(ver, (int __user *)argp);
38 }
39
40 /*
41 * Enable device.
42 * used by dasdfmt after BIODASDDISABLE to retrigger blocksize detection
43 */
44 static int
dasd_ioctl_enable(struct block_device * bdev)45 dasd_ioctl_enable(struct block_device *bdev)
46 {
47 struct dasd_device *base;
48
49 if (!capable(CAP_SYS_ADMIN))
50 return -EACCES;
51
52 base = dasd_device_from_gendisk(bdev->bd_disk);
53 if (!base)
54 return -ENODEV;
55
56 dasd_enable_device(base);
57 /* Formatting the dasd device can change the capacity. */
58 bd_set_nr_sectors(bdev, get_capacity(base->block->gdp));
59 dasd_put_device(base);
60 return 0;
61 }
62
63 /*
64 * Disable device.
65 * Used by dasdfmt. Disable I/O operations but allow ioctls.
66 */
67 static int
dasd_ioctl_disable(struct block_device * bdev)68 dasd_ioctl_disable(struct block_device *bdev)
69 {
70 struct dasd_device *base;
71
72 if (!capable(CAP_SYS_ADMIN))
73 return -EACCES;
74
75 base = dasd_device_from_gendisk(bdev->bd_disk);
76 if (!base)
77 return -ENODEV;
78 /*
79 * Man this is sick. We don't do a real disable but only downgrade
80 * the device to DASD_STATE_BASIC. The reason is that dasdfmt uses
81 * BIODASDDISABLE to disable accesses to the device via the block
82 * device layer but it still wants to do i/o on the device by
83 * using the BIODASDFMT ioctl. Therefore the correct state for the
84 * device is DASD_STATE_BASIC that allows to do basic i/o.
85 */
86 dasd_set_target_state(base, DASD_STATE_BASIC);
87 /*
88 * Set i_size to zero, since read, write, etc. check against this
89 * value.
90 */
91 bd_set_nr_sectors(bdev, 0);
92 dasd_put_device(base);
93 return 0;
94 }
95
96 /*
97 * Quiesce device.
98 */
dasd_ioctl_quiesce(struct dasd_block * block)99 static int dasd_ioctl_quiesce(struct dasd_block *block)
100 {
101 unsigned long flags;
102 struct dasd_device *base;
103
104 base = block->base;
105 if (!capable (CAP_SYS_ADMIN))
106 return -EACCES;
107
108 pr_info("%s: The DASD has been put in the quiesce "
109 "state\n", dev_name(&base->cdev->dev));
110 spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
111 dasd_device_set_stop_bits(base, DASD_STOPPED_QUIESCE);
112 spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
113 return 0;
114 }
115
116
117 /*
118 * Resume device.
119 */
dasd_ioctl_resume(struct dasd_block * block)120 static int dasd_ioctl_resume(struct dasd_block *block)
121 {
122 unsigned long flags;
123 struct dasd_device *base;
124
125 base = block->base;
126 if (!capable (CAP_SYS_ADMIN))
127 return -EACCES;
128
129 pr_info("%s: I/O operations have been resumed "
130 "on the DASD\n", dev_name(&base->cdev->dev));
131 spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
132 dasd_device_remove_stop_bits(base, DASD_STOPPED_QUIESCE);
133 spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
134
135 dasd_schedule_block_bh(block);
136 return 0;
137 }
138
139 /*
140 * Abort all failfast I/O on a device.
141 */
dasd_ioctl_abortio(struct dasd_block * block)142 static int dasd_ioctl_abortio(struct dasd_block *block)
143 {
144 unsigned long flags;
145 struct dasd_device *base;
146 struct dasd_ccw_req *cqr, *n;
147
148 base = block->base;
149 if (!capable(CAP_SYS_ADMIN))
150 return -EACCES;
151
152 if (test_and_set_bit(DASD_FLAG_ABORTALL, &base->flags))
153 return 0;
154 DBF_DEV_EVENT(DBF_NOTICE, base, "%s", "abortall flag set");
155
156 spin_lock_irqsave(&block->request_queue_lock, flags);
157 spin_lock(&block->queue_lock);
158 list_for_each_entry_safe(cqr, n, &block->ccw_queue, blocklist) {
159 if (test_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags) &&
160 cqr->callback_data &&
161 cqr->callback_data != DASD_SLEEPON_START_TAG &&
162 cqr->callback_data != DASD_SLEEPON_END_TAG) {
163 spin_unlock(&block->queue_lock);
164 blk_abort_request(cqr->callback_data);
165 spin_lock(&block->queue_lock);
166 }
167 }
168 spin_unlock(&block->queue_lock);
169 spin_unlock_irqrestore(&block->request_queue_lock, flags);
170
171 dasd_schedule_block_bh(block);
172 return 0;
173 }
174
175 /*
176 * Allow I/O on a device
177 */
dasd_ioctl_allowio(struct dasd_block * block)178 static int dasd_ioctl_allowio(struct dasd_block *block)
179 {
180 struct dasd_device *base;
181
182 base = block->base;
183 if (!capable(CAP_SYS_ADMIN))
184 return -EACCES;
185
186 if (test_and_clear_bit(DASD_FLAG_ABORTALL, &base->flags))
187 DBF_DEV_EVENT(DBF_NOTICE, base, "%s", "abortall flag unset");
188
189 return 0;
190 }
191
192 /*
193 * performs formatting of _device_ according to _fdata_
194 * Note: The discipline's format_function is assumed to deliver formatting
195 * commands to format multiple units of the device. In terms of the ECKD
196 * devices this means CCWs are generated to format multiple tracks.
197 */
198 static int
dasd_format(struct dasd_block * block,struct format_data_t * fdata)199 dasd_format(struct dasd_block *block, struct format_data_t *fdata)
200 {
201 struct dasd_device *base;
202 int rc;
203
204 base = block->base;
205 if (base->discipline->format_device == NULL)
206 return -EPERM;
207
208 if (base->state != DASD_STATE_BASIC) {
209 pr_warn("%s: The DASD cannot be formatted while it is enabled\n",
210 dev_name(&base->cdev->dev));
211 return -EBUSY;
212 }
213
214 DBF_DEV_EVENT(DBF_NOTICE, base,
215 "formatting units %u to %u (%u B blocks) flags %u",
216 fdata->start_unit,
217 fdata->stop_unit, fdata->blksize, fdata->intensity);
218
219 /* Since dasdfmt keeps the device open after it was disabled,
220 * there still exists an inode for this device.
221 * We must update i_blkbits, otherwise we might get errors when
222 * enabling the device later.
223 */
224 if (fdata->start_unit == 0) {
225 struct block_device *bdev = bdget_disk(block->gdp, 0);
226 bdev->bd_inode->i_blkbits = blksize_bits(fdata->blksize);
227 bdput(bdev);
228 }
229
230 rc = base->discipline->format_device(base, fdata, 1);
231 if (rc == -EAGAIN)
232 rc = base->discipline->format_device(base, fdata, 0);
233
234 return rc;
235 }
236
dasd_check_format(struct dasd_block * block,struct format_check_t * cdata)237 static int dasd_check_format(struct dasd_block *block,
238 struct format_check_t *cdata)
239 {
240 struct dasd_device *base;
241 int rc;
242
243 base = block->base;
244 if (!base->discipline->check_device_format)
245 return -ENOTTY;
246
247 rc = base->discipline->check_device_format(base, cdata, 1);
248 if (rc == -EAGAIN)
249 rc = base->discipline->check_device_format(base, cdata, 0);
250
251 return rc;
252 }
253
254 /*
255 * Format device.
256 */
257 static int
dasd_ioctl_format(struct block_device * bdev,void __user * argp)258 dasd_ioctl_format(struct block_device *bdev, void __user *argp)
259 {
260 struct dasd_device *base;
261 struct format_data_t fdata;
262 int rc;
263
264 if (!capable(CAP_SYS_ADMIN))
265 return -EACCES;
266 if (!argp)
267 return -EINVAL;
268 base = dasd_device_from_gendisk(bdev->bd_disk);
269 if (!base)
270 return -ENODEV;
271 if (base->features & DASD_FEATURE_READONLY ||
272 test_bit(DASD_FLAG_DEVICE_RO, &base->flags)) {
273 dasd_put_device(base);
274 return -EROFS;
275 }
276 if (copy_from_user(&fdata, argp, sizeof(struct format_data_t))) {
277 dasd_put_device(base);
278 return -EFAULT;
279 }
280 if (bdev_is_partition(bdev)) {
281 pr_warn("%s: The specified DASD is a partition and cannot be formatted\n",
282 dev_name(&base->cdev->dev));
283 dasd_put_device(base);
284 return -EINVAL;
285 }
286 rc = dasd_format(base->block, &fdata);
287 dasd_put_device(base);
288
289 return rc;
290 }
291
292 /*
293 * Check device format
294 */
dasd_ioctl_check_format(struct block_device * bdev,void __user * argp)295 static int dasd_ioctl_check_format(struct block_device *bdev, void __user *argp)
296 {
297 struct format_check_t cdata;
298 struct dasd_device *base;
299 int rc = 0;
300
301 if (!argp)
302 return -EINVAL;
303
304 base = dasd_device_from_gendisk(bdev->bd_disk);
305 if (!base)
306 return -ENODEV;
307 if (bdev_is_partition(bdev)) {
308 pr_warn("%s: The specified DASD is a partition and cannot be checked\n",
309 dev_name(&base->cdev->dev));
310 rc = -EINVAL;
311 goto out_err;
312 }
313
314 if (copy_from_user(&cdata, argp, sizeof(cdata))) {
315 rc = -EFAULT;
316 goto out_err;
317 }
318
319 rc = dasd_check_format(base->block, &cdata);
320 if (rc)
321 goto out_err;
322
323 if (copy_to_user(argp, &cdata, sizeof(cdata)))
324 rc = -EFAULT;
325
326 out_err:
327 dasd_put_device(base);
328
329 return rc;
330 }
331
dasd_release_space(struct dasd_device * device,struct format_data_t * rdata)332 static int dasd_release_space(struct dasd_device *device,
333 struct format_data_t *rdata)
334 {
335 if (!device->discipline->is_ese && !device->discipline->is_ese(device))
336 return -ENOTSUPP;
337 if (!device->discipline->release_space)
338 return -ENOTSUPP;
339
340 return device->discipline->release_space(device, rdata);
341 }
342
343 /*
344 * Release allocated space
345 */
dasd_ioctl_release_space(struct block_device * bdev,void __user * argp)346 static int dasd_ioctl_release_space(struct block_device *bdev, void __user *argp)
347 {
348 struct format_data_t rdata;
349 struct dasd_device *base;
350 int rc = 0;
351
352 if (!capable(CAP_SYS_ADMIN))
353 return -EACCES;
354 if (!argp)
355 return -EINVAL;
356
357 base = dasd_device_from_gendisk(bdev->bd_disk);
358 if (!base)
359 return -ENODEV;
360 if (base->features & DASD_FEATURE_READONLY ||
361 test_bit(DASD_FLAG_DEVICE_RO, &base->flags)) {
362 rc = -EROFS;
363 goto out_err;
364 }
365 if (bdev_is_partition(bdev)) {
366 pr_warn("%s: The specified DASD is a partition and tracks cannot be released\n",
367 dev_name(&base->cdev->dev));
368 rc = -EINVAL;
369 goto out_err;
370 }
371
372 if (copy_from_user(&rdata, argp, sizeof(rdata))) {
373 rc = -EFAULT;
374 goto out_err;
375 }
376
377 rc = dasd_release_space(base, &rdata);
378
379 out_err:
380 dasd_put_device(base);
381
382 return rc;
383 }
384
385 #ifdef CONFIG_DASD_PROFILE
386 /*
387 * Reset device profile information
388 */
dasd_ioctl_reset_profile(struct dasd_block * block)389 static int dasd_ioctl_reset_profile(struct dasd_block *block)
390 {
391 dasd_profile_reset(&block->profile);
392 return 0;
393 }
394
395 /*
396 * Return device profile information
397 */
dasd_ioctl_read_profile(struct dasd_block * block,void __user * argp)398 static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp)
399 {
400 struct dasd_profile_info_t *data;
401 int rc = 0;
402
403 data = kmalloc(sizeof(*data), GFP_KERNEL);
404 if (!data)
405 return -ENOMEM;
406
407 spin_lock_bh(&block->profile.lock);
408 if (block->profile.data) {
409 data->dasd_io_reqs = block->profile.data->dasd_io_reqs;
410 data->dasd_io_sects = block->profile.data->dasd_io_sects;
411 memcpy(data->dasd_io_secs, block->profile.data->dasd_io_secs,
412 sizeof(data->dasd_io_secs));
413 memcpy(data->dasd_io_times, block->profile.data->dasd_io_times,
414 sizeof(data->dasd_io_times));
415 memcpy(data->dasd_io_timps, block->profile.data->dasd_io_timps,
416 sizeof(data->dasd_io_timps));
417 memcpy(data->dasd_io_time1, block->profile.data->dasd_io_time1,
418 sizeof(data->dasd_io_time1));
419 memcpy(data->dasd_io_time2, block->profile.data->dasd_io_time2,
420 sizeof(data->dasd_io_time2));
421 memcpy(data->dasd_io_time2ps,
422 block->profile.data->dasd_io_time2ps,
423 sizeof(data->dasd_io_time2ps));
424 memcpy(data->dasd_io_time3, block->profile.data->dasd_io_time3,
425 sizeof(data->dasd_io_time3));
426 memcpy(data->dasd_io_nr_req,
427 block->profile.data->dasd_io_nr_req,
428 sizeof(data->dasd_io_nr_req));
429 spin_unlock_bh(&block->profile.lock);
430 } else {
431 spin_unlock_bh(&block->profile.lock);
432 rc = -EIO;
433 goto out;
434 }
435 if (copy_to_user(argp, data, sizeof(*data)))
436 rc = -EFAULT;
437 out:
438 kfree(data);
439 return rc;
440 }
441 #else
dasd_ioctl_reset_profile(struct dasd_block * block)442 static int dasd_ioctl_reset_profile(struct dasd_block *block)
443 {
444 return -ENOTTY;
445 }
446
dasd_ioctl_read_profile(struct dasd_block * block,void __user * argp)447 static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp)
448 {
449 return -ENOTTY;
450 }
451 #endif
452
453 /*
454 * Return dasd information. Used for BIODASDINFO and BIODASDINFO2.
455 */
__dasd_ioctl_information(struct dasd_block * block,struct dasd_information2_t * dasd_info)456 static int __dasd_ioctl_information(struct dasd_block *block,
457 struct dasd_information2_t *dasd_info)
458 {
459 struct subchannel_id sch_id;
460 struct ccw_dev_id dev_id;
461 struct dasd_device *base;
462 struct ccw_device *cdev;
463 struct list_head *l;
464 unsigned long flags;
465 int rc;
466
467 base = block->base;
468 if (!base->discipline || !base->discipline->fill_info)
469 return -EINVAL;
470
471 rc = base->discipline->fill_info(base, dasd_info);
472 if (rc)
473 return rc;
474
475 cdev = base->cdev;
476 ccw_device_get_id(cdev, &dev_id);
477 ccw_device_get_schid(cdev, &sch_id);
478
479 dasd_info->devno = dev_id.devno;
480 dasd_info->schid = sch_id.sch_no;
481 dasd_info->cu_type = cdev->id.cu_type;
482 dasd_info->cu_model = cdev->id.cu_model;
483 dasd_info->dev_type = cdev->id.dev_type;
484 dasd_info->dev_model = cdev->id.dev_model;
485 dasd_info->status = base->state;
486 /*
487 * The open_count is increased for every opener, that includes
488 * the blkdev_get in dasd_scan_partitions.
489 * This must be hidden from user-space.
490 */
491 dasd_info->open_count = atomic_read(&block->open_count);
492 if (!block->bdev)
493 dasd_info->open_count++;
494
495 /*
496 * check if device is really formatted
497 * LDL / CDL was returned by 'fill_info'
498 */
499 if ((base->state < DASD_STATE_READY) ||
500 (dasd_check_blocksize(block->bp_block)))
501 dasd_info->format = DASD_FORMAT_NONE;
502
503 dasd_info->features |=
504 ((base->features & DASD_FEATURE_READONLY) != 0);
505
506 memcpy(dasd_info->type, base->discipline->name, 4);
507
508 spin_lock_irqsave(&block->queue_lock, flags);
509 list_for_each(l, &base->ccw_queue)
510 dasd_info->chanq_len++;
511 spin_unlock_irqrestore(&block->queue_lock, flags);
512 return 0;
513 }
514
dasd_ioctl_information(struct dasd_block * block,void __user * argp,size_t copy_size)515 static int dasd_ioctl_information(struct dasd_block *block, void __user *argp,
516 size_t copy_size)
517 {
518 struct dasd_information2_t *dasd_info;
519 int error;
520
521 dasd_info = kzalloc(sizeof(*dasd_info), GFP_KERNEL);
522 if (!dasd_info)
523 return -ENOMEM;
524
525 error = __dasd_ioctl_information(block, dasd_info);
526 if (!error && copy_to_user(argp, dasd_info, copy_size))
527 error = -EFAULT;
528 kfree(dasd_info);
529 return error;
530 }
531
532 /*
533 * Set read only
534 */
535 static int
dasd_ioctl_set_ro(struct block_device * bdev,void __user * argp)536 dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp)
537 {
538 struct dasd_device *base;
539 int intval, rc;
540
541 if (!capable(CAP_SYS_ADMIN))
542 return -EACCES;
543 if (bdev_is_partition(bdev))
544 // ro setting is not allowed for partitions
545 return -EINVAL;
546 if (get_user(intval, (int __user *)argp))
547 return -EFAULT;
548 base = dasd_device_from_gendisk(bdev->bd_disk);
549 if (!base)
550 return -ENODEV;
551 if (!intval && test_bit(DASD_FLAG_DEVICE_RO, &base->flags)) {
552 dasd_put_device(base);
553 return -EROFS;
554 }
555 set_disk_ro(bdev->bd_disk, intval);
556 rc = dasd_set_feature(base->cdev, DASD_FEATURE_READONLY, intval);
557 dasd_put_device(base);
558 return rc;
559 }
560
dasd_ioctl_readall_cmb(struct dasd_block * block,unsigned int cmd,struct cmbdata __user * argp)561 static int dasd_ioctl_readall_cmb(struct dasd_block *block, unsigned int cmd,
562 struct cmbdata __user *argp)
563 {
564 size_t size = _IOC_SIZE(cmd);
565 struct cmbdata data;
566 int ret;
567
568 ret = cmf_readall(block->base->cdev, &data);
569 if (!ret && copy_to_user(argp, &data, min(size, sizeof(*argp))))
570 return -EFAULT;
571 return ret;
572 }
573
dasd_ioctl(struct block_device * bdev,fmode_t mode,unsigned int cmd,unsigned long arg)574 int dasd_ioctl(struct block_device *bdev, fmode_t mode,
575 unsigned int cmd, unsigned long arg)
576 {
577 struct dasd_block *block;
578 struct dasd_device *base;
579 void __user *argp;
580 int rc;
581
582 if (is_compat_task())
583 argp = compat_ptr(arg);
584 else
585 argp = (void __user *)arg;
586
587 if ((_IOC_DIR(cmd) != _IOC_NONE) && !arg) {
588 PRINT_DEBUG("empty data ptr");
589 return -EINVAL;
590 }
591
592 base = dasd_device_from_gendisk(bdev->bd_disk);
593 if (!base)
594 return -ENODEV;
595 block = base->block;
596 rc = 0;
597 switch (cmd) {
598 case BIODASDDISABLE:
599 rc = dasd_ioctl_disable(bdev);
600 break;
601 case BIODASDENABLE:
602 rc = dasd_ioctl_enable(bdev);
603 break;
604 case BIODASDQUIESCE:
605 rc = dasd_ioctl_quiesce(block);
606 break;
607 case BIODASDRESUME:
608 rc = dasd_ioctl_resume(block);
609 break;
610 case BIODASDABORTIO:
611 rc = dasd_ioctl_abortio(block);
612 break;
613 case BIODASDALLOWIO:
614 rc = dasd_ioctl_allowio(block);
615 break;
616 case BIODASDFMT:
617 rc = dasd_ioctl_format(bdev, argp);
618 break;
619 case BIODASDCHECKFMT:
620 rc = dasd_ioctl_check_format(bdev, argp);
621 break;
622 case BIODASDINFO:
623 rc = dasd_ioctl_information(block, argp,
624 sizeof(struct dasd_information_t));
625 break;
626 case BIODASDINFO2:
627 rc = dasd_ioctl_information(block, argp,
628 sizeof(struct dasd_information2_t));
629 break;
630 case BIODASDPRRD:
631 rc = dasd_ioctl_read_profile(block, argp);
632 break;
633 case BIODASDPRRST:
634 rc = dasd_ioctl_reset_profile(block);
635 break;
636 case BLKROSET:
637 rc = dasd_ioctl_set_ro(bdev, argp);
638 break;
639 case DASDAPIVER:
640 rc = dasd_ioctl_api_version(argp);
641 break;
642 case BIODASDCMFENABLE:
643 rc = enable_cmf(base->cdev);
644 break;
645 case BIODASDCMFDISABLE:
646 rc = disable_cmf(base->cdev);
647 break;
648 case BIODASDREADALLCMB:
649 rc = dasd_ioctl_readall_cmb(block, cmd, argp);
650 break;
651 case BIODASDRAS:
652 rc = dasd_ioctl_release_space(bdev, argp);
653 break;
654 default:
655 /* if the discipline has an ioctl method try it. */
656 rc = -ENOTTY;
657 if (base->discipline->ioctl)
658 rc = base->discipline->ioctl(block, cmd, argp);
659 }
660 dasd_put_device(base);
661 return rc;
662 }
663
664
665 /**
666 * dasd_biodasdinfo() - fill out the dasd information structure
667 * @disk [in]: pointer to gendisk structure that references a DASD
668 * @info [out]: pointer to the dasd_information2_t structure
669 *
670 * Provide access to DASD specific information.
671 * The gendisk structure is checked if it belongs to the DASD driver by
672 * comparing the gendisk->fops pointer.
673 * If it does not belong to the DASD driver -EINVAL is returned.
674 * Otherwise the provided dasd_information2_t structure is filled out.
675 *
676 * Returns:
677 * %0 on success and a negative error value on failure.
678 */
dasd_biodasdinfo(struct gendisk * disk,struct dasd_information2_t * info)679 int dasd_biodasdinfo(struct gendisk *disk, struct dasd_information2_t *info)
680 {
681 struct dasd_device *base;
682 int error;
683
684 if (disk->fops != &dasd_device_operations)
685 return -EINVAL;
686
687 base = dasd_device_from_gendisk(disk);
688 if (!base)
689 return -ENODEV;
690 error = __dasd_ioctl_information(base->block, info);
691 dasd_put_device(base);
692 return error;
693 }
694 /* export that symbol_get in partition detection is possible */
695 EXPORT_SYMBOL_GPL(dasd_biodasdinfo);
696
