3 * dev.c -- low level operations on device (storage device)
7 * NOTE!!!! None of these routines are reentrant. You must
8 * use lock_device() and unlock_device() at a higher level,
9 * or use the xxx_device() equivalents. By moving the
10 * thread synchronization to a higher level, we permit
11 * the higher level routines to "seize" the device and
12 * to carry out operations without worrying about who
13 * set what lock (i.e. race conditions).
15 * Note, this is the device dependent code, and my have
16 * to be modified for each system, but is meant to
17 * be as "generic" as possible.
19 * The purpose of this code is to develop a SIMPLE Storage
20 * daemon. More complicated coding (double buffering, writer
21 * thread, ...) is left for a later version.
23 * Unfortunately, I have had to add more and more complication
24 * to this code. This was not foreseen as noted above, and as
25 * a consequence has lead to something more contorted than is
26 * really necessary -- KES. Note, this contortion has been
27 * corrected to a large extent by a rewrite (Apr MMI).
32 Copyright (C) 2000-2005 Kern Sibbald
34 This program is free software; you can redistribute it and/or
35 modify it under the terms of the GNU General Public License as
36 published by the Free Software Foundation; either version 2 of
37 the License, or (at your option) any later version.
39 This program is distributed in the hope that it will be useful,
40 but WITHOUT ANY WARRANTY; without even the implied warranty of
41 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
42 General Public License for more details.
44 You should have received a copy of the GNU General Public
45 License along with this program; if not, write to the Free
46 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
52 * Handling I/O errors and end of tape conditions are a bit tricky.
53 * This is how it is currently done when writting.
54 * On either an I/O error or end of tape,
55 * we will stop writing on the physical device (no I/O recovery is
56 * attempted at least in this daemon). The state flag will be sent
57 * to include ST_EOT, which is ephimeral, and ST_WEOT, which is
58 * persistent. Lots of routines clear ST_EOT, but ST_WEOT is
59 * cleared only when the problem goes away. Now when ST_WEOT
60 * is set all calls to write_block_to_device() call the fix_up
61 * routine. In addition, all threads are blocked
62 * from writing on the tape by calling lock_dev(), and thread other
63 * than the first thread to hit the EOT will block on a condition
64 * variable. The first thread to hit the EOT will continue to
65 * be able to read and write the tape (he sort of tunnels through
66 * the locking mechanism -- see lock_dev() for details).
68 * Now presumably somewhere higher in the chain of command
69 * (device.c), someone will notice the EOT condition and
70 * get a new tape up, get the tape label read, and mark
71 * the label for rewriting. Then this higher level routine
72 * will write the unwritten buffer to the new volume.
73 * Finally, he will release
74 * any blocked threads by doing a broadcast on the condition
75 * variable. At that point, we should be totally back in
76 * business with no lost data.
87 /* Functions in dvd.c */
88 void get_filename(DEVICE *dev, char *VolName, POOL_MEM& archive_name);
89 int mount_dev(DEVICE* dev, int timeout);
90 int unmount_dev(DEVICE *dev, int timeout);
91 void update_free_space_dev(DEVICE* dev);
94 /* Forward referenced functions */
95 void set_os_device_parameters(DEVICE *dev);
96 static bool dev_get_os_pos(DEVICE *dev, struct mtget *mt_stat);
97 static void open_tape_device(DEVICE *dev, int mode);
98 static void open_file_device(DEVICE *dev, int mode);
101 * Allocate and initialize the DEVICE structure
102 * Note, if dev is non-NULL, it is already allocated,
103 * thus we neither allocate it nor free it. This allows
104 * the caller to put the packet in shared memory.
106 * Note, for a tape, the device->device_name is the device name
107 * (e.g. /dev/nst0), and for a file, the device name
108 * is the directory in which the file will be placed.
112 init_dev(JCR *jcr, DEVICE *dev, DEVRES *device)
119 /* Check that device is available */
120 if (stat(device->device_name, &statp) < 0) {
123 dev->dev_errno = errno;
125 Jmsg2(jcr, M_ERROR, 0, _("Unable to stat device %s: ERR=%s\n"),
126 device->device_name, be.strerror());
133 if (S_ISDIR(statp.st_mode)) {
135 } else if (S_ISCHR(statp.st_mode)) {
137 } else if (S_ISFIFO(statp.st_mode)) {
139 } else if (!(device->cap_bits & CAP_REQMOUNT)) {
141 dev->dev_errno = ENODEV;
143 Jmsg2(jcr, M_ERROR, 0, _("%s is an unknown device type. Must be tape or directory. st_mode=%x\n"),
144 device->device_name, statp.st_mode);
148 dev = (DEVICE *)get_memory(sizeof(DEVICE));
149 memset(dev, 0, sizeof(DEVICE));
150 dev->state = ST_MALLOC;
152 memset(dev, 0, sizeof(DEVICE));
155 /* Copy user supplied device parameters from Resource */
156 dev->dev_name = get_memory(strlen(device->device_name)+1);
157 pm_strcpy(dev->dev_name, device->device_name);
158 dev->prt_name = get_memory(strlen(device->device_name) + strlen(device->hdr.name) + 20);
159 /* We edit "Resource-name" (physical-name) */
160 Mmsg(dev->prt_name, "\"%s\" (%s)", device->hdr.name, device->device_name);
161 dev->capabilities = device->cap_bits;
162 dev->min_block_size = device->min_block_size;
163 dev->max_block_size = device->max_block_size;
164 dev->max_volume_size = device->max_volume_size;
165 dev->max_file_size = device->max_file_size;
166 dev->volume_capacity = device->volume_capacity;
167 dev->max_rewind_wait = device->max_rewind_wait;
168 dev->max_open_wait = device->max_open_wait;
169 dev->max_open_vols = device->max_open_vols;
170 dev->vol_poll_interval = device->vol_poll_interval;
171 dev->max_spool_size = device->max_spool_size;
172 dev->drive_index = device->drive_index;
173 dev->autoselect = device->autoselect;
174 if (tape) { /* No parts on tapes */
175 dev->max_part_size = 0;
178 dev->max_part_size = device->max_part_size;
181 if (dev->vol_poll_interval && dev->vol_poll_interval < 60) {
182 dev->vol_poll_interval = 60;
184 dev->device = device;
187 dev->state |= ST_TAPE;
189 dev->state |= ST_FIFO;
190 dev->capabilities |= CAP_STREAM; /* set stream device */
192 dev->state |= ST_FILE;
195 /* If the device requires mount :
196 * - Check that the mount point is available
197 * - Check that (un)mount commands are defined
199 if (dev->is_file() && device->cap_bits & CAP_REQMOUNT) {
200 if (stat(device->mount_point, &statp) < 0) {
202 dev->dev_errno = errno;
203 Jmsg2(jcr, M_ERROR, 0, _("Unable to stat mount point %s: ERR=%s\n"),
204 device->mount_point, be.strerror());
207 if (!device->mount_command || !device->unmount_command) {
208 Jmsg0(jcr, M_ERROR_TERM, 0, _("Mount and unmount commands must defined for a device which requires mount.\n"));
210 if (!device->write_part_command) {
211 Jmsg0(jcr, M_ERROR_TERM, 0, _("Write part command must be defined for a device which requires mount.\n"));
213 dev->state |= ST_DVD;
216 if (dev->max_block_size > 1000000) {
217 Jmsg3(jcr, M_ERROR, 0, _("Block size %u on device %s is too large, using default %u\n"),
218 dev->max_block_size, dev->print_name(), DEFAULT_BLOCK_SIZE);
219 dev->max_block_size = 0;
221 if (dev->max_block_size % TAPE_BSIZE != 0) {
222 Jmsg2(jcr, M_WARNING, 0, _("Max block size %u not multiple of device %s block size.\n"),
223 dev->max_block_size, dev->print_name());
226 dev->errmsg = get_pool_memory(PM_EMSG);
229 if ((errstat = pthread_mutex_init(&dev->mutex, NULL)) != 0) {
231 dev->dev_errno = errstat;
232 Mmsg1(dev->errmsg, _("Unable to init mutex: ERR=%s\n"), be.strerror(errstat));
233 Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
235 if ((errstat = pthread_cond_init(&dev->wait, NULL)) != 0) {
237 dev->dev_errno = errstat;
238 Mmsg1(dev->errmsg, _("Unable to init cond variable: ERR=%s\n"), be.strerror(errstat));
239 Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
241 if ((errstat = pthread_cond_init(&dev->wait_next_vol, NULL)) != 0) {
243 dev->dev_errno = errstat;
244 Mmsg1(dev->errmsg, _("Unable to init cond variable: ERR=%s\n"), be.strerror(errstat));
245 Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
247 if ((errstat = pthread_mutex_init(&dev->spool_mutex, NULL)) != 0) {
249 dev->dev_errno = errstat;
250 Mmsg1(dev->errmsg, _("Unable to init mutex: ERR=%s\n"), be.strerror(errstat));
251 Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
253 if ((errstat = rwl_init(&dev->lock)) != 0) {
255 dev->dev_errno = errstat;
256 Mmsg1(dev->errmsg, _("Unable to init mutex: ERR=%s\n"), be.strerror(errstat));
257 Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
261 dev->attached_dcrs = New(dlist(dcr, &dcr->dev_link));
262 Dmsg2(29, "init_dev: tape=%d dev_name=%s\n", dev->is_tape(), dev->dev_name);
268 * Open the device with the operating system and
269 * initialize buffer pointers.
271 * Returns: -1 on error
274 * Note, for a tape, the VolName is the name we give to the
275 * volume (not really used here), but for a file, the
276 * VolName represents the name of the file to be created/opened.
277 * In the case of a file, the full name is the device name
278 * (archive_name) with the VolName concatenated.
281 open_dev(DEVICE *dev, char *VolName, int mode)
283 if (dev->is_open()) {
285 * *****FIXME***** how to handle two threads wanting
286 * different volumes mounted???? E.g. one is waiting
287 * for the next volume to be mounted, and a new job
288 * starts and snatches up the device.
290 if (VolName && strcmp(dev->VolCatInfo.VolCatName, VolName) != 0) {
294 Mmsg2(dev->errmsg, _("WARNING!!!! device %s opened %d times!!!\n"),
295 dev->print_name(), dev->use_count);
296 Emsg1(M_WARNING, 0, "%s", dev->errmsg);
300 bstrncpy(dev->VolCatInfo.VolCatName, VolName, sizeof(dev->VolCatInfo.VolCatName));
302 dev->VolCatInfo.VolCatName[0] = 0;
305 Dmsg3(29, "open_dev: tape=%d dev_name=%s vol=%s\n", dev->is_tape(),
306 dev->dev_name, dev->VolCatInfo.VolCatName);
307 dev->state &= ~(ST_LABEL|ST_APPEND|ST_READ|ST_EOT|ST_WEOT|ST_EOF);
308 dev->label_type = B_BACULA_LABEL;
309 if (dev->is_tape() || dev->is_fifo()) {
310 open_tape_device(dev, mode);
312 open_file_device(dev, mode);
317 static void open_tape_device(DEVICE *dev, int mode)
319 int nonblocking = 0;;
323 Dmsg0(29, "open_dev: device is tape\n");
324 if (mode == OPEN_READ_WRITE) {
325 dev->mode = O_RDWR | O_BINARY;
326 } else if (mode == OPEN_READ_ONLY) {
327 dev->mode = O_RDONLY | O_BINARY;
328 } else if (mode == OPEN_WRITE_ONLY) {
329 dev->mode = O_WRONLY | O_BINARY;
331 Emsg0(M_ABORT, 0, _("Illegal mode given to open_dev.\n"));
333 timeout = dev->max_open_wait;
335 if (dev->open_nowait) {
336 /* Set wait counters to zero for no wait */
337 timeout = ioerrcnt = 0;
338 /* Open drive in non-block mode */
339 nonblocking = O_NONBLOCK;
341 if (dev->is_fifo() && timeout) {
343 dev->tid = start_thread_timer(pthread_self(), timeout);
345 /* If busy retry each second for max_open_wait seconds */
347 Dmsg1(500, "Try open %s\n", dev->dev_name);
348 while ((dev->fd = open(dev->dev_name, dev->mode, MODE_RW+nonblocking)) < 0) {
350 Dmsg2(500, "Open error errno=%d ERR=%s\n", errno, be.strerror());
351 if (errno == EINTR || errno == EAGAIN) {
352 Dmsg0(500, "Continue open\n");
355 /* Busy wait for specified time (default = 5 mins) */
356 if (errno == EBUSY && timeout-- > 0) {
357 Dmsg2(100, "Device %s busy. ERR=%s\n", dev->print_name(), be.strerror());
361 /* IO error (no volume) try 10 times every 6 seconds */
362 if (errno == EIO && ioerrcnt-- > 0) {
364 Dmsg0(500, "Continue open\n");
367 dev->dev_errno = errno;
368 Mmsg2(dev->errmsg, _("Unable to open device %s: ERR=%s\n"),
369 dev->print_name(), be.strerror(dev->dev_errno));
370 /* Stop any open timer we set */
372 stop_thread_timer(dev->tid);
375 Emsg0(M_FATAL, 0, dev->errmsg);
380 /* If opened in non-block mode, close it an open it normally */
386 dev->state |= ST_OPENED;
388 update_pos_dev(dev); /* update position */
389 set_os_device_parameters(dev); /* do system dependent stuff */
390 Dmsg0(500, "Open OK\n");
392 /* Stop any open() timer we started */
394 stop_thread_timer(dev->tid);
397 Dmsg1(29, "open_dev: tape %d opened\n", dev->fd);
401 * Open a file or DVD device
403 static void open_file_device(DEVICE *dev, int mode)
405 POOL_MEM archive_name(PM_FNAME);
406 struct stat filestat;
408 * Handle opening of File Archive (not a tape)
410 if (dev->part == 0) {
415 /* if num_parts has not been set, but VolCatInfo is available, copy
416 * it from the VolCatInfo.VolCatParts */
417 if (dev->num_parts < dev->VolCatInfo.VolCatParts) {
418 dev->num_parts = dev->VolCatInfo.VolCatParts;
421 if (dev->VolCatInfo.VolCatName[0] == 0) {
422 Mmsg(dev->errmsg, _("Could not open file device %s. No Volume name given.\n"),
427 get_filename(dev, dev->VolCatInfo.VolCatName, archive_name);
429 if (mount_dev(dev, 1) < 0) {
430 Mmsg(dev->errmsg, _("Could not mount device %s.\n"),
432 Emsg0(M_FATAL, 0, dev->errmsg);
437 Dmsg2(29, "open_dev: device is disk %s (mode:%d)\n", archive_name.c_str(), mode);
438 dev->openmode = mode;
441 * If we are not trying to access the last part, set mode to
442 * OPEN_READ_ONLY as writing would be an error.
444 if (dev->part < dev->num_parts) {
445 mode = OPEN_READ_ONLY;
448 if (mode == OPEN_READ_WRITE) {
449 dev->mode = O_CREAT | O_RDWR | O_BINARY;
450 } else if (mode == OPEN_READ_ONLY) {
451 dev->mode = O_RDONLY | O_BINARY;
452 } else if (mode == OPEN_WRITE_ONLY) {
453 dev->mode = O_WRONLY | O_BINARY;
455 Emsg0(M_ABORT, 0, _("Illegal mode given to open_dev.\n"));
457 /* If creating file, give 0640 permissions */
458 if ((dev->fd = open(archive_name.c_str(), dev->mode, 0640)) < 0) {
460 dev->dev_errno = errno;
461 Mmsg2(dev->errmsg, _("Could not open: %s, ERR=%s\n"), archive_name.c_str(),
463 Emsg0(M_FATAL, 0, dev->errmsg);
466 dev->state |= ST_OPENED;
468 update_pos_dev(dev); /* update position */
469 if (fstat(dev->fd, &filestat) < 0) {
471 dev->dev_errno = errno;
472 Mmsg2(dev->errmsg, _("Could not fstat: %s, ERR=%s\n"), archive_name.c_str(),
474 Emsg0(M_FATAL, 0, dev->errmsg);
476 dev->part_size = filestat.st_size;
479 Dmsg4(29, "open_dev: disk fd=%d opened, part=%d/%d, part_size=%u\n", dev->fd, dev->part, dev->num_parts, dev->part_size);
480 if (dev->is_dvd() && (dev->mode != OPEN_READ_ONLY) &&
481 (dev->free_space_errno == 0 || dev->num_parts == dev->part)) {
482 update_free_space_dev(dev);
488 bool _rewind_dev(char *file, int line, DEVICE *dev)
490 Dmsg2(100, "rewind_dev called from %s:%d\n", file, line);
491 return rewind_dev(dev);
497 * Returns: true on success
500 bool rewind_dev(DEVICE *dev)
505 Dmsg1(29, "rewind_dev %s\n", dev->print_name());
507 dev->dev_errno = EBADF;
508 Mmsg1(dev->errmsg, _("Bad call to rewind_dev. Device %s not open\n"),
510 Emsg0(M_ABORT, 0, dev->errmsg);
513 dev->state &= ~(ST_EOT|ST_EOF|ST_WEOT); /* remove EOF/EOT flags */
514 dev->block_num = dev->file = 0;
517 if (dev->is_tape()) {
518 mt_com.mt_op = MTREW;
520 /* If we get an I/O error on rewind, it is probably because
521 * the drive is actually busy. We loop for (about 5 minutes)
522 * retrying every 5 seconds.
524 for (i=dev->max_rewind_wait; ; i -= 5) {
525 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
527 clrerror_dev(dev, MTREW);
528 if (i == dev->max_rewind_wait) {
529 Dmsg1(200, "Rewind error, %s. retrying ...\n", be.strerror());
531 if (dev->dev_errno == EIO && i > 0) {
532 Dmsg0(200, "Sleeping 5 seconds.\n");
536 Mmsg2(dev->errmsg, _("Rewind error on %s. ERR=%s.\n"),
537 dev->print_name(), be.strerror());
542 } else if (dev->is_file()) {
543 if (lseek_dev(dev, (off_t)0, SEEK_SET) < 0) {
545 dev->dev_errno = errno;
546 Mmsg2(dev->errmsg, _("lseek_dev error on %s. ERR=%s.\n"),
547 dev->print_name(), be.strerror());
554 void DEVICE::block(int why)
557 block_device(this, why);
561 void DEVICE::unblock()
564 unblock_device(this);
569 * Called to indicate that we have just read an
570 * EOF from the device.
572 void DEVICE::set_eof()
582 * Called to indicate we are now at the end of the tape, and
583 * writing is not possible.
585 void DEVICE::set_eot()
587 state |= (ST_EOF|ST_EOT|ST_WEOT);
588 state &= ~ST_APPEND; /* make tape read-only */
592 * Position device to end of medium (end of data)
593 * Returns: true on succes
600 struct mtget mt_stat;
605 dev->dev_errno = EBADF;
606 Mmsg1(dev->errmsg, _("Bad call to eod_dev. Device %s not open\n"),
610 Dmsg0(29, "eod_dev\n");
614 dev->state &= ~(ST_EOF); /* remove EOF flags */
615 dev->block_num = dev->file = 0;
618 if (dev->state & (ST_FIFO | ST_PROG)) {
621 if (!dev->is_tape()) {
622 pos = lseek_dev(dev, (off_t)0, SEEK_END);
623 // Dmsg1(100, "====== Seek to %lld\n", pos);
626 dev->state |= ST_EOT;
629 dev->dev_errno = errno;
631 Mmsg2(dev->errmsg, _("lseek_dev error on %s. ERR=%s.\n"),
632 dev->print_name(), be.strerror());
636 if (dev_cap(dev, CAP_FASTFSF) && !dev_cap(dev, CAP_EOM)) {
637 Dmsg0(100,"Using FAST FSF for EOM\n");
638 /* If unknown position, rewind */
639 if (!dev_get_os_pos(dev, &mt_stat)) {
640 if (!rewind_dev(dev)) {
644 mt_com.mt_op = MTFSF;
646 * ***FIXME*** fix code to handle case that INT16_MAX is
649 mt_com.mt_count = INT16_MAX; /* use big positive number */
650 if (mt_com.mt_count < 0) {
651 mt_com.mt_count = INT16_MAX; /* brain damaged system */
655 if (dev_cap(dev, CAP_MTIOCGET) && (dev_cap(dev, CAP_FASTFSF) || dev_cap(dev, CAP_EOM))) {
656 if (dev_cap(dev, CAP_EOM)) {
657 Dmsg0(100,"Using EOM for EOM\n");
658 mt_com.mt_op = MTEOM;
662 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
664 clrerror_dev(dev, mt_com.mt_op);
665 Dmsg1(50, "ioctl error: %s\n", be.strerror());
667 Mmsg2(dev->errmsg, _("ioctl MTEOM error on %s. ERR=%s.\n"),
668 dev->print_name(), be.strerror());
672 if (!dev_get_os_pos(dev, &mt_stat)) {
674 clrerror_dev(dev, -1);
675 Mmsg2(dev->errmsg, _("ioctl MTIOCGET error on %s. ERR=%s.\n"),
676 dev->print_name(), be.strerror());
679 Dmsg2(100, "EOD file=%d block=%d\n", mt_stat.mt_fileno, mt_stat.mt_blkno);
681 dev->file = mt_stat.mt_fileno;
687 * Rewind then use FSF until EOT reached
689 if (!rewind_dev(dev)) {
693 * Move file by file to the end of the tape
696 for (file_num=dev->file; !dev->at_eot(); file_num++) {
697 Dmsg0(200, "eod_dev: doing fsf 1\n");
698 if (!fsf_dev(dev, 1)) {
699 Dmsg0(200, "fsf_dev error.\n");
703 * Avoid infinite loop. ***FIXME*** possibly add code
704 * to set EOD or to turn off CAP_FASTFSF if on.
706 if (file_num == (int)dev->file) {
707 struct mtget mt_stat;
708 Dmsg1(100, "fsf_dev did not advance from file %d\n", file_num);
709 if (dev_get_os_pos(dev, &mt_stat)) {
710 Dmsg2(100, "Adjust file from %d to %d\n", dev->file , mt_stat.mt_fileno);
712 dev->file = mt_stat.mt_fileno;
719 * Some drivers leave us after second EOF when doing
720 * MTEOM, so we must backup so that appending overwrites
723 if (dev_cap(dev, CAP_BSFATEOM)) {
724 struct mtget mt_stat;
725 /* Backup over EOF */
726 ok = bsf_dev(dev, 1);
727 /* If BSF worked and fileno is known (not -1), set file */
728 if (dev_get_os_pos(dev, &mt_stat)) {
729 Dmsg2(100, "BSFATEOF adjust file from %d to %d\n", dev->file , mt_stat.mt_fileno);
730 dev->file = mt_stat.mt_fileno;
732 dev->file++; /* wing it -- not correct on all OSes */
735 update_pos_dev(dev); /* update position */
737 Dmsg1(200, "EOD dev->file=%d\n", dev->file);
742 * Set the position of the device -- only for files
743 * For other devices, there is no generic way to do it.
744 * Returns: true on succes
747 bool update_pos_dev(DEVICE *dev)
753 dev->dev_errno = EBADF;
754 Mmsg0(dev->errmsg, _("Bad device call. Device not open\n"));
755 Emsg0(M_FATAL, 0, dev->errmsg);
759 /* Find out where we are */
760 if (dev->is_file()) {
763 pos = lseek_dev(dev, (off_t)0, SEEK_CUR);
766 dev->dev_errno = errno;
767 Pmsg1(000, "Seek error: ERR=%s\n", be.strerror());
768 Mmsg2(dev->errmsg, _("lseek_dev error on %s. ERR=%s.\n"),
769 dev->print_name(), be.strerror());
772 dev->file_addr = pos;
780 * Return the status of the device. This was meant
781 * to be a generic routine. Unfortunately, it doesn't
782 * seem possible (at least I do not know how to do it
783 * currently), which means that for the moment, this
784 * routine has very little value.
788 uint32_t status_dev(DEVICE *dev)
790 struct mtget mt_stat;
793 if (dev->state & (ST_EOT | ST_WEOT)) {
797 if (dev->state & ST_EOF) {
801 if (dev->is_tape()) {
803 Dmsg0(-20," Bacula status:");
804 Dmsg2(-20," file=%d block=%d\n", dev->file, dev->block_num);
805 if (ioctl(dev->fd, MTIOCGET, (char *)&mt_stat) < 0) {
807 dev->dev_errno = errno;
808 Mmsg2(dev->errmsg, _("ioctl MTIOCGET error on %s. ERR=%s.\n"),
809 dev->print_name(), be.strerror());
812 Dmsg0(-20, " Device status:");
814 #if defined(HAVE_LINUX_OS)
815 if (GMT_EOF(mt_stat.mt_gstat)) {
819 if (GMT_BOT(mt_stat.mt_gstat)) {
823 if (GMT_EOT(mt_stat.mt_gstat)) {
827 if (GMT_SM(mt_stat.mt_gstat)) {
831 if (GMT_EOD(mt_stat.mt_gstat)) {
835 if (GMT_WR_PROT(mt_stat.mt_gstat)) {
837 Dmsg0(-20, " WR_PROT");
839 if (GMT_ONLINE(mt_stat.mt_gstat)) {
841 Dmsg0(-20, " ONLINE");
843 if (GMT_DR_OPEN(mt_stat.mt_gstat)) {
845 Dmsg0(-20, " DR_OPEN");
847 if (GMT_IM_REP_EN(mt_stat.mt_gstat)) {
848 stat |= BMT_IM_REP_EN;
849 Dmsg0(-20, " IM_REP_EN");
851 #endif /* !SunOS && !OSF */
852 if (dev_cap(dev, CAP_MTIOCGET)) {
853 Dmsg2(-20, " file=%d block=%d\n", mt_stat.mt_fileno, mt_stat.mt_blkno);
855 Dmsg2(-20, " file=%d block=%d\n", -1, -1);
858 stat |= BMT_ONLINE | BMT_BOT;
865 * Load medium in device
866 * Returns: true on success
869 bool load_dev(DEVICE *dev)
876 dev->dev_errno = EBADF;
877 Mmsg0(dev->errmsg, _("Bad call to load_dev. Device not open\n"));
878 Emsg0(M_FATAL, 0, dev->errmsg);
881 if (!(dev->is_tape())) {
885 Dmsg0(200, "stored: MTLOAD command not available\n");
887 dev->dev_errno = ENOTTY; /* function not available */
888 Mmsg2(dev->errmsg, _("ioctl MTLOAD error on %s. ERR=%s.\n"),
889 dev->print_name(), be.strerror());
893 dev->block_num = dev->file = 0;
896 mt_com.mt_op = MTLOAD;
898 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
900 dev->dev_errno = errno;
901 Mmsg2(dev->errmsg, _("ioctl MTLOAD error on %s. ERR=%s.\n"),
902 dev->print_name(), be.strerror());
910 * Rewind device and put it offline
911 * Returns: true on success
914 bool offline_dev(DEVICE *dev)
919 dev->dev_errno = EBADF;
920 Mmsg0(dev->errmsg, _("Bad call to offline_dev. Device not open\n"));
921 Emsg0(M_FATAL, 0, dev->errmsg);
924 if (!(dev->is_tape())) {
928 dev->state &= ~(ST_APPEND|ST_READ|ST_EOT|ST_EOF|ST_WEOT); /* remove EOF/EOT flags */
929 dev->block_num = dev->file = 0;
934 mt_com.mt_op = MTUNLOCK;
936 ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
938 mt_com.mt_op = MTOFFL;
940 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
942 dev->dev_errno = errno;
943 Mmsg2(dev->errmsg, _("ioctl MTOFFL error on %s. ERR=%s.\n"),
944 dev->print_name(), be.strerror());
947 Dmsg1(100, "Offlined device %s\n", dev->print_name());
951 bool offline_or_rewind_dev(DEVICE *dev)
956 if (dev_cap(dev, CAP_OFFLINEUNMOUNT)) {
957 return offline_dev(dev);
960 * Note, this rewind probably should not be here (it wasn't
961 * in prior versions of Bacula), but on FreeBSD, this is
962 * needed in the case the tape was "frozen" due to an error
963 * such as backspacing after writing and EOF. If it is not
964 * done, all future references to the drive get and I/O error.
966 clrerror_dev(dev, MTREW);
967 return rewind_dev(dev);
972 * Foward space a file
973 * Returns: true on success
977 fsf_dev(DEVICE *dev, int num)
979 struct mtget mt_stat;
984 dev->dev_errno = EBADF;
985 Mmsg0(dev->errmsg, _("Bad call to fsf_dev. Device not open\n"));
986 Emsg0(M_FATAL, 0, dev->errmsg);
990 if (!dev->is_tape()) {
993 if (dev->state & ST_EOT) {
995 Mmsg1(dev->errmsg, _("Device %s at End of Tape.\n"), dev->print_name());
998 if (dev->state & ST_EOF) {
999 Dmsg0(200, "ST_EOF set on entry to FSF\n");
1002 Dmsg0(100, "fsf_dev\n");
1005 * If Fast forward space file is set, then we
1006 * use MTFSF to forward space and MTIOCGET
1007 * to get the file position. We assume that
1008 * the SCSI driver will ensure that we do not
1009 * forward space past the end of the medium.
1011 if (dev_cap(dev, CAP_FSF) && dev_cap(dev, CAP_MTIOCGET) && dev_cap(dev, CAP_FASTFSF)) {
1012 mt_com.mt_op = MTFSF;
1013 mt_com.mt_count = num;
1014 stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
1015 if (stat < 0 || !dev_get_os_pos(dev, &mt_stat)) {
1017 dev->state |= ST_EOT;
1018 Dmsg0(200, "Set ST_EOT\n");
1019 clrerror_dev(dev, MTFSF);
1020 Mmsg2(dev->errmsg, _("ioctl MTFSF error on %s. ERR=%s.\n"),
1021 dev->print_name(), be.strerror());
1022 Dmsg1(200, "%s", dev->errmsg);
1025 Dmsg2(200, "fsf file=%d block=%d\n", mt_stat.mt_fileno, mt_stat.mt_blkno);
1027 dev->file = mt_stat.mt_fileno;
1031 * Here if CAP_FSF is set, and virtually all drives
1032 * these days support it, we read a record, then forward
1033 * space one file. Using this procedure, which is slow,
1034 * is the only way we can be sure that we don't read
1035 * two consecutive EOF marks, which means End of Data.
1037 } else if (dev_cap(dev, CAP_FSF)) {
1040 Dmsg0(200, "FSF has cap_fsf\n");
1041 if (dev->max_block_size == 0) {
1042 rbuf_len = DEFAULT_BLOCK_SIZE;
1044 rbuf_len = dev->max_block_size;
1046 rbuf = get_memory(rbuf_len);
1047 mt_com.mt_op = MTFSF;
1048 mt_com.mt_count = 1;
1049 while (num-- && !(dev->state & ST_EOT)) {
1050 Dmsg0(100, "Doing read before fsf\n");
1051 if ((stat = read(dev->fd, (char *)rbuf, rbuf_len)) < 0) {
1052 if (errno == ENOMEM) { /* tape record exceeds buf len */
1053 stat = rbuf_len; /* This is OK */
1056 dev->state |= ST_EOT;
1057 clrerror_dev(dev, -1);
1058 Dmsg2(100, "Set ST_EOT read errno=%d. ERR=%s\n", dev->dev_errno,
1060 Mmsg2(dev->errmsg, _("read error on %s. ERR=%s.\n"),
1061 dev->print_name(), be.strerror());
1062 Dmsg1(100, "%s", dev->errmsg);
1066 if (stat == 0) { /* EOF */
1067 update_pos_dev(dev);
1068 Dmsg1(100, "End of File mark from read. File=%d\n", dev->file+1);
1069 /* Two reads of zero means end of tape */
1070 if (dev->state & ST_EOF) {
1071 dev->state |= ST_EOT;
1072 Dmsg0(100, "Set ST_EOT\n");
1078 } else { /* Got data */
1079 dev->state &= ~(ST_EOF|ST_EOT);
1082 Dmsg0(100, "Doing MTFSF\n");
1083 stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
1084 if (stat < 0) { /* error => EOT */
1086 dev->state |= ST_EOT;
1087 Dmsg0(100, "Set ST_EOT\n");
1088 clrerror_dev(dev, MTFSF);
1089 Mmsg2(dev->errmsg, _("ioctl MTFSF error on %s. ERR=%s.\n"),
1090 dev->print_name(), be.strerror());
1091 Dmsg0(100, "Got < 0 for MTFSF\n");
1092 Dmsg1(100, "%s", dev->errmsg);
1100 * No FSF, so use FSR to simulate it
1103 Dmsg0(200, "Doing FSR for FSF\n");
1104 while (num-- && !(dev->state & ST_EOT)) {
1105 dev->fsr(INT32_MAX); /* returns -1 on EOF or EOT */
1107 if (dev->state & ST_EOT) {
1109 Mmsg1(dev->errmsg, _("Device %s at End of Tape.\n"), dev->print_name());
1115 update_pos_dev(dev);
1116 Dmsg1(200, "Return %d from FSF\n", stat);
1117 if (dev->state & ST_EOF)
1118 Dmsg0(200, "ST_EOF set on exit FSF\n");
1119 if (dev->state & ST_EOT)
1120 Dmsg0(200, "ST_EOT set on exit FSF\n");
1121 Dmsg1(200, "Return from FSF file=%d\n", dev->file);
1126 * Backward space a file
1127 * Returns: false on failure
1131 bsf_dev(DEVICE *dev, int num)
1137 dev->dev_errno = EBADF;
1138 Mmsg0(dev->errmsg, _("Bad call to bsf_dev. Device not open\n"));
1139 Emsg0(M_FATAL, 0, dev->errmsg);
1143 if (!dev->is_tape()) {
1144 Mmsg1(dev->errmsg, _("Device %s cannot BSF because it is not a tape.\n"),
1148 Dmsg0(29, "bsf_dev\n");
1149 dev->state &= ~(ST_EOT|ST_EOF);
1153 mt_com.mt_op = MTBSF;
1154 mt_com.mt_count = num;
1155 stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
1158 clrerror_dev(dev, MTBSF);
1159 Mmsg2(dev->errmsg, _("ioctl MTBSF error on %s. ERR=%s.\n"),
1160 dev->print_name(), be.strerror());
1162 update_pos_dev(dev);
1168 * Foward space num records
1169 * Returns: false on failure
1172 bool DEVICE::fsr(int num)
1179 Mmsg0(errmsg, _("Bad call to fsr. Device not open\n"));
1180 Emsg0(M_FATAL, 0, errmsg);
1187 if (!dev_cap(this, CAP_FSR)) {
1188 Mmsg1(errmsg, _("ioctl MTFSR not permitted on %s.\n"), print_name());
1192 Dmsg1(29, "fsr %d\n", num);
1193 mt_com.mt_op = MTFSR;
1194 mt_com.mt_count = num;
1195 stat = ioctl(fd, MTIOCTOP, (char *)&mt_com);
1201 struct mtget mt_stat;
1202 clrerror_dev(this, MTFSR);
1203 Dmsg1(100, "FSF fail: ERR=%s\n", be.strerror());
1204 if (dev_get_os_pos(this, &mt_stat)) {
1205 Dmsg4(100, "Adjust from %d:%d to %d:%d\n", file,
1206 block_num, mt_stat.mt_fileno, mt_stat.mt_blkno);
1207 file = mt_stat.mt_fileno;
1208 block_num = mt_stat.mt_blkno;
1216 Mmsg3(errmsg, _("ioctl MTFSR %d error on %s. ERR=%s.\n"),
1217 num, print_name(), be.strerror());
1219 update_pos_dev(this);
1224 * Backward space a record
1225 * Returns: false on failure
1229 bsr_dev(DEVICE *dev, int num)
1235 dev->dev_errno = EBADF;
1236 Mmsg0(dev->errmsg, _("Bad call to bsr_dev. Device not open\n"));
1237 Emsg0(M_FATAL, 0, dev->errmsg);
1241 if (!dev->is_tape()) {
1245 if (!dev_cap(dev, CAP_BSR)) {
1246 Mmsg1(dev->errmsg, _("ioctl MTBSR not permitted on %s.\n"), dev->print_name());
1250 Dmsg0(29, "bsr_dev\n");
1251 dev->block_num -= num;
1252 dev->state &= ~(ST_EOF|ST_EOT|ST_EOF);
1253 mt_com.mt_op = MTBSR;
1254 mt_com.mt_count = num;
1255 stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
1258 clrerror_dev(dev, MTBSR);
1259 Mmsg2(dev->errmsg, _("ioctl MTBSR error on %s. ERR=%s.\n"),
1260 dev->print_name(), be.strerror());
1262 update_pos_dev(dev);
1267 * Reposition the device to file, block
1268 * Returns: false on failure
1272 reposition_dev(DEVICE *dev, uint32_t file, uint32_t block)
1275 dev->dev_errno = EBADF;
1276 Mmsg0(dev->errmsg, _("Bad call to reposition_dev. Device not open\n"));
1277 Emsg0(M_FATAL, 0, dev->errmsg);
1281 if (!dev->is_tape()) {
1282 off_t pos = (((off_t)file)<<32) + block;
1283 Dmsg1(100, "===== lseek_dev to %d\n", (int)pos);
1284 if (lseek_dev(dev, pos, SEEK_SET) == (off_t)-1) {
1286 dev->dev_errno = errno;
1287 Mmsg2(dev->errmsg, _("lseek_dev error on %s. ERR=%s.\n"),
1288 dev->print_name(), be.strerror());
1292 dev->block_num = block;
1293 dev->file_addr = pos;
1296 Dmsg4(100, "reposition_dev from %u:%u to %u:%u\n",
1297 dev->file, dev->block_num, file, block);
1298 if (file < dev->file) {
1299 Dmsg0(100, "Rewind_dev\n");
1300 if (!rewind_dev(dev)) {
1304 if (file > dev->file) {
1305 Dmsg1(100, "fsf %d\n", file-dev->file);
1306 if (!fsf_dev(dev, file-dev->file)) {
1307 Dmsg1(100, "fsf failed! ERR=%s\n", strerror_dev(dev));
1310 Dmsg2(100, "wanted_file=%d at_file=%d\n", file, dev->file);
1312 if (block < dev->block_num) {
1313 Dmsg2(100, "wanted_blk=%d at_blk=%d\n", block, dev->block_num);
1314 Dmsg0(100, "bsf_dev 1\n");
1316 Dmsg0(100, "fsf_dev 1\n");
1318 Dmsg2(100, "wanted_blk=%d at_blk=%d\n", block, dev->block_num);
1320 if (dev_cap(dev, CAP_POSITIONBLOCKS) && block > dev->block_num) {
1321 /* Ignore errors as Bacula can read to the correct block */
1322 Dmsg1(100, "fsr %d\n", block-dev->block_num);
1323 return dev->fsr(block-dev->block_num);
1331 * Write an end of file on the device
1332 * Returns: 0 on success
1333 * non-zero on failure
1336 weof_dev(DEVICE *dev, int num)
1340 Dmsg0(29, "weof_dev\n");
1343 dev->dev_errno = EBADF;
1344 Mmsg0(dev->errmsg, _("Bad call to weof_dev. Device not open\n"));
1345 Emsg0(M_FATAL, 0, dev->errmsg);
1350 if (!dev->is_tape()) {
1353 if (!dev->can_append()) {
1354 Mmsg0(dev->errmsg, _("Attempt to WEOF on non-appendable Volume\n"));
1355 Emsg0(M_FATAL, 0, dev->errmsg);
1359 dev->state &= ~(ST_EOT | ST_EOF); /* remove EOF/EOT flags */
1360 mt_com.mt_op = MTWEOF;
1361 mt_com.mt_count = num;
1362 stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
1369 clrerror_dev(dev, MTWEOF);
1371 Mmsg2(dev->errmsg, _("ioctl MTWEOF error on %s. ERR=%s.\n"),
1372 dev->print_name(), be.strerror());
1379 * Return string message with last error in English
1380 * Be careful not to call this routine from within dev.c
1381 * while editing an Mmsg() or you will end up in a recursive
1382 * loop creating a Segmentation Violation.
1385 strerror_dev(DEVICE *dev)
1392 * If implemented in system, clear the tape
1396 clrerror_dev(DEVICE *dev, int func)
1398 const char *msg = NULL;
1399 struct mtget mt_stat;
1402 dev->dev_errno = errno; /* save errno */
1404 dev->VolCatInfo.VolCatErrors++;
1407 if (!dev->is_tape()) {
1410 if (errno == ENOTTY || errno == ENOSYS) { /* Function not implemented */
1413 Emsg0(M_ABORT, 0, "Got ENOTTY on read/write!\n");
1417 dev->capabilities &= ~CAP_EOF; /* turn off feature */
1422 dev->capabilities &= ~CAP_EOM; /* turn off feature */
1427 dev->capabilities &= ~CAP_FSF; /* turn off feature */
1431 dev->capabilities &= ~CAP_BSF; /* turn off feature */
1435 dev->capabilities &= ~CAP_FSR; /* turn off feature */
1439 dev->capabilities &= ~CAP_BSR; /* turn off feature */
1460 bsnprintf(buf, sizeof(buf), "unknown func code %d", func);
1465 dev->dev_errno = ENOSYS;
1466 Mmsg1(dev->errmsg, _("I/O function \"%s\" not supported on this device.\n"), msg);
1467 Emsg0(M_ERROR, 0, dev->errmsg);
1470 /* On some systems such as NetBSD, this clears all errors */
1471 ioctl(dev->fd, MTIOCGET, (char *)&mt_stat);
1473 /* Found on Linux */
1477 mt_com.mt_op = MTIOCLRERR;
1478 mt_com.mt_count = 1;
1479 /* Clear any error condition on the tape */
1480 ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
1481 Dmsg0(200, "Did MTIOCLRERR\n");
1485 /* Typically on FreeBSD */
1488 /* Read and clear SCSI error status */
1489 union mterrstat mt_errstat;
1490 Dmsg2(200, "Doing MTIOCERRSTAT errno=%d ERR=%s\n", dev->dev_errno,
1491 strerror(dev->dev_errno));
1492 ioctl(dev->fd, MTIOCERRSTAT, (char *)&mt_errstat);
1496 /* Clear Subsystem Exception OSF1 */
1500 mt_com.mt_op = MTCSE;
1501 mt_com.mt_count = 1;
1502 /* Clear any error condition on the tape */
1503 ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
1504 Dmsg0(200, "Did MTCSE\n");
1510 * Flush buffer contents
1513 int flush_dev(DEVICE *dev)
1518 static void do_close(DEVICE *dev)
1521 Dmsg1(29, "really close_dev %s\n", dev->print_name());
1526 if (unmount_dev(dev, 1) < 0) {
1527 Dmsg1(0, "Cannot unmount device %s.\n", dev->print_name());
1530 /* Remove the last part file if it is empty */
1531 if (dev->can_append() && (dev->num_parts > 0)) {
1533 POOL_MEM archive_name(PM_FNAME);
1534 dev->part = dev->num_parts;
1535 get_filename(dev, dev->VolCatInfo.VolCatName, archive_name);
1536 /* Check that the part file is empty */
1537 if ((stat(archive_name.c_str(), &statp) == 0) && (statp.st_size == 0)) {
1538 unlink(archive_name.c_str());
1542 /* Clean up device packet so it can be reused */
1544 dev->state &= ~(ST_OPENED|ST_LABEL|ST_READ|ST_APPEND|ST_EOT|ST_WEOT|ST_EOF);
1545 dev->label_type = B_BACULA_LABEL;
1546 dev->file = dev->block_num = 0;
1551 dev->part_start = 0;
1552 dev->EndFile = dev->EndBlock = 0;
1553 memset(&dev->VolCatInfo, 0, sizeof(dev->VolCatInfo));
1554 memset(&dev->VolHdr, 0, sizeof(dev->VolHdr));
1556 stop_thread_timer(dev->tid);
1566 close_dev(DEVICE *dev)
1569 Mmsg0(dev->errmsg, _("Bad call to close_dev. Device not open\n"));
1570 Emsg0(M_FATAL, 0, dev->errmsg);
1573 /*if (dev->fd >= 0 && dev->use_count == 1) {*/
1574 /* No need to check if dev->fd >= 0: it is checked again
1575 * in do_close, and do_close MUST be called for volumes
1576 * splitted in parts, even if dev->fd == -1. */
1577 if (dev->use_count == 1) {
1579 } else if (dev->use_count > 0) {
1584 ASSERT(dev->use_count >= 0);
1589 * Used when unmounting the device, ignore use_count
1591 void force_close_dev(DEVICE *dev)
1594 Mmsg0(dev->errmsg, _("Bad call to force_close_dev. Device not open\n"));
1595 Emsg0(M_FATAL, 0, dev->errmsg);
1598 Dmsg1(29, "Force close_dev %s\n", dev->print_name());
1602 ASSERT(dev->use_count >= 0);
1606 bool truncate_dev(DEVICE *dev)
1608 Dmsg1(100, "truncate_dev %s\n", dev->print_name());
1609 if (dev->is_tape()) {
1610 return true; /* we don't really truncate tapes */
1611 /* maybe we should rewind and write and eof ???? */
1614 /* If there is more than one part, open the first one, and then truncate it. */
1615 if (dev->num_parts > 0) {
1617 dev->VolCatInfo.VolCatParts = 0;
1618 if (open_first_part(dev) < 0) {
1620 Mmsg1(dev->errmsg, "Unable to truncate device, because I'm unable to open the first part. ERR=%s\n", be.strerror());
1624 if (ftruncate(dev->fd, 0) != 0) {
1626 Mmsg1(dev->errmsg, _("Unable to truncate device. ERR=%s\n"), be.strerror());
1633 * return 1 if the device is read for write, and 0 otherwise
1634 * This is meant for checking at the end of a job to see
1635 * if we still have a tape (perhaps not if at end of tape
1636 * and the job is canceled).
1639 dev_can_write(DEVICE *dev)
1641 if (dev->is_open() && dev->can_append() &&
1642 dev->is_labeled() && !(dev->state & ST_WEOT)) {
1649 /* Return the resource name for the device */
1650 const char *DEVICE::name() const
1652 return device->hdr.name;
1656 dev_vol_name(DEVICE *dev)
1658 return dev->VolCatInfo.VolCatName;
1661 uint32_t dev_block(DEVICE *dev)
1663 update_pos_dev(dev);
1664 return dev->block_num;
1667 uint32_t dev_file(DEVICE *dev)
1669 update_pos_dev(dev);
1674 * Free memory allocated for the device
1677 term_dev(DEVICE *dev)
1680 dev->dev_errno = EBADF;
1681 Mmsg0(dev->errmsg, _("Bad call to term_dev. Device not open\n"));
1682 Emsg0(M_FATAL, 0, dev->errmsg);
1686 Dmsg0(29, "term_dev\n");
1687 if (dev->dev_name) {
1688 free_memory(dev->dev_name);
1689 dev->dev_name = NULL;
1691 if (dev->prt_name) {
1692 free_memory(dev->prt_name);
1693 dev->prt_name = NULL;
1696 free_pool_memory(dev->errmsg);
1699 pthread_mutex_destroy(&dev->mutex);
1700 pthread_cond_destroy(&dev->wait);
1701 pthread_cond_destroy(&dev->wait_next_vol);
1702 pthread_mutex_destroy(&dev->spool_mutex);
1703 rwl_destroy(&dev->lock);
1704 if (dev->attached_dcrs) {
1705 delete dev->attached_dcrs;
1706 dev->attached_dcrs = NULL;
1708 if (dev->state & ST_MALLOC) {
1709 free_pool_memory((POOLMEM *)dev);
1714 * This routine initializes the device wait timers
1716 void init_device_wait_timers(DCR *dcr)
1718 DEVICE *dev = dcr->dev;
1719 JCR *jcr = dcr->jcr;
1721 /* ******FIXME******* put these on config variables */
1722 dev->min_wait = 60 * 60;
1723 dev->max_wait = 24 * 60 * 60;
1724 dev->max_num_wait = 9; /* 5 waits =~ 1 day, then 1 day at a time */
1725 dev->wait_sec = dev->min_wait;
1726 dev->rem_wait_sec = dev->wait_sec;
1729 dev->BadVolName[0] = 0;
1731 jcr->min_wait = 60 * 60;
1732 jcr->max_wait = 24 * 60 * 60;
1733 jcr->max_num_wait = 9; /* 5 waits =~ 1 day, then 1 day at a time */
1734 jcr->wait_sec = jcr->min_wait;
1735 jcr->rem_wait_sec = jcr->wait_sec;
1741 * The dev timers are used for waiting on a particular device
1743 * Returns: true if time doubled
1744 * false if max time expired
1746 bool double_dev_wait_time(DEVICE *dev)
1748 dev->wait_sec *= 2; /* double wait time */
1749 if (dev->wait_sec > dev->max_wait) { /* but not longer than maxtime */
1750 dev->wait_sec = dev->max_wait;
1753 dev->rem_wait_sec = dev->wait_sec;
1754 if (dev->num_wait >= dev->max_num_wait) {
1761 void set_os_device_parameters(DEVICE *dev)
1763 #ifdef HAVE_LINUX_OS
1765 if (dev->min_block_size == dev->max_block_size &&
1766 dev->min_block_size == 0) { /* variable block mode */
1767 mt_com.mt_op = MTSETBLK;
1768 mt_com.mt_count = 0;
1769 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
1770 clrerror_dev(dev, MTSETBLK);
1772 mt_com.mt_op = MTSETDRVBUFFER;
1773 mt_com.mt_count = MT_ST_CLEARBOOLEANS;
1774 if (!dev_cap(dev, CAP_TWOEOF)) {
1775 mt_com.mt_count |= MT_ST_TWO_FM;
1777 if (dev_cap(dev, CAP_EOM)) {
1778 mt_com.mt_count |= MT_ST_FAST_MTEOM;
1780 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
1781 clrerror_dev(dev, MTSETBLK);
1787 #ifdef HAVE_NETBSD_OS
1789 if (dev->min_block_size == dev->max_block_size &&
1790 dev->min_block_size == 0) { /* variable block mode */
1791 mt_com.mt_op = MTSETBSIZ;
1792 mt_com.mt_count = 0;
1793 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
1794 clrerror_dev(dev, MTSETBSIZ);
1796 /* Get notified at logical end of tape */
1797 mt_com.mt_op = MTEWARN;
1798 mt_com.mt_count = 1;
1799 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
1800 clrerror_dev(dev, MTEWARN);
1806 #if HAVE_FREEBSD_OS || HAVE_OPENBSD_OS
1808 if (dev->min_block_size == dev->max_block_size &&
1809 dev->min_block_size == 0) { /* variable block mode */
1810 mt_com.mt_op = MTSETBSIZ;
1811 mt_com.mt_count = 0;
1812 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
1813 clrerror_dev(dev, MTSETBSIZ);
1821 if (dev->min_block_size == dev->max_block_size &&
1822 dev->min_block_size == 0) { /* variable block mode */
1823 mt_com.mt_op = MTSRSZ;
1824 mt_com.mt_count = 0;
1825 if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
1826 clrerror_dev(dev, MTSRSZ);
1833 static bool dev_get_os_pos(DEVICE *dev, struct mtget *mt_stat)
1835 return dev_cap(dev, CAP_MTIOCGET) &&
1836 ioctl(dev->fd, MTIOCGET, (char *)mt_stat) == 0 &&
1837 mt_stat->mt_fileno >= 0;