/*
- *
- * Routines for handling mounting tapes for reading and for
- * writing.
- *
- * Kern Sibbald, August MMII
- *
- * Version $Id$
- */
-/*
- Copyright (C) 2000-2004 Kern Sibbald and John Walker
+ Bacula® - The Network Backup Solution
+
+ Copyright (C) 2002-2008 Free Software Foundation Europe e.V.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
+ The main author of Bacula is Kern Sibbald, with contributions from
+ many others, a complete list can be found in the file AUTHORS.
+ This program is Free Software; you can redistribute it and/or
+ modify it under the terms of version two of the GNU General Public
+ License as published by the Free Software Foundation and included
+ in the file LICENSE.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+ Bacula® is a registered trademark of John Walker.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
+/*
+ *
+ * Routines for handling mounting tapes for reading and for
+ * writing.
+ *
+ * Kern Sibbald, August MMII
+ *
+ * Version $Id$
*/
#include "bacula.h" /* pull in global headers */
#include "stored.h" /* pull in Storage Deamon headers */
-static bool rewrite_volume_label(DCR *dcr, bool recycle);
+enum {
+ try_next_vol = 1,
+ try_read_vol,
+ try_error,
+ try_default
+};
+
+enum {
+ check_next_vol = 1,
+ check_ok,
+ check_read_vol,
+ check_error
+};
/*
- * If release is set, we rewind the current volume,
- * which we no longer want, and ask the user (console)
+ * If release is set, we rewind the current volume,
+ * which we no longer want, and ask the user (console)
* to mount the next volume.
*
* Continue trying until we get it, and then ensure
* impossible to get the requested Volume.
*
*/
-bool mount_next_write_volume(DCR *dcr, bool release)
+bool DCR::mount_next_write_volume()
{
int retry = 0;
bool ask = false, recycle, autochanger;
- int vol_label_status;
- DEVICE *dev = dcr->dev;
- JCR *jcr = dcr->jcr;
- DEV_BLOCK *block = dcr->block;
+ bool do_find = true;
+ int mode;
+ DCR *dcr = this;
- Dmsg0(100, "Enter mount_next_volume()\n");
+ Dmsg2(150, "Enter mount_next_volume(release=%d) dev=%s\n", dev->must_unload(),
+ dev->print_name());
- init_dev_wait_timers(dev);
-
- /*
+ init_device_wait_timers(dcr);
+ lock_volumes();
+
+ /*
* Attempt to mount the next volume. If something non-fatal goes
* wrong, we come back here to re-try (new op messages, re-read
* Volume, ...)
*/
mount_next_vol:
+ Dmsg1(150, "mount_next_vol retry=%d\n", retry);
/* Ignore retry if this is poll request */
if (!dev->poll && retry++ > 4) {
/* Last ditch effort before giving up, force operator to respond */
- dcr->VolCatInfo.Slot = 0;
- if (!dir_ask_sysop_to_mount_volume(dcr)) {
- Jmsg(jcr, M_FATAL, 0, _("Too many errors trying to mount device %s.\n"),
- dev_name(dev));
- return false;
+ VolCatInfo.Slot = 0;
+ unlock_volumes();
+ if (!dir_ask_sysop_to_mount_volume(dcr, ST_APPEND)) {
+ Jmsg(jcr, M_FATAL, 0, _("Too many errors trying to mount device %s.\n"),
+ dev->print_name());
+ goto no_lock_bail_out;
}
+ lock_volumes();
+ Dmsg1(150, "Continue after dir_ask_sysop_to_mount. must_load=%d\n", dev->must_load());
}
if (job_canceled(jcr)) {
Jmsg(jcr, M_FATAL, 0, _("Job %d canceled.\n"), jcr->JobId);
- return false;
+ goto bail_out;
}
recycle = false;
- if (release) {
- Dmsg0(100, "mount_next_volume release=1\n");
- release_volume(dcr);
- ask = true; /* ask operator to mount tape */
+
+ if (retry >= 2) {
+ do_find = false;
}
- /*
- * Get Director's idea of what tape we should have mounted.
- * in dcr->VolCatInfo
- */
- Dmsg0(200, "Before dir_find_next_appendable_volume.\n");
- while (!dir_find_next_appendable_volume(dcr)) {
- Dmsg0(200, "not dir_find_next\n");
- if (!dir_ask_sysop_to_create_appendable_volume(dcr)) {
- return false;
- }
- Dmsg0(200, "Again dir_find_next_append...\n");
+ if (dev->must_unload()) {
+ ask = true; /* ask operator to mount tape */
+ do_find = true; /* re-find a volume after unload */
}
- if (job_canceled(jcr)) {
- return false;
+ do_swapping(true /*writing*/);
+
+ if (do_find && !find_a_volume()) {
+ goto no_lock_bail_out;
}
- Dmsg2(100, "After find_next_append. Vol=%s Slot=%d\n",
- dcr->VolCatInfo.VolCatName, dcr->VolCatInfo.Slot);
- /*
+ if (job_canceled(jcr)) {
+ goto bail_out;
+ }
+ Dmsg3(150, "After find_next_append. Vol=%s Slot=%d Parts=%d\n",
+ VolCatInfo.VolCatName, VolCatInfo.Slot, VolCatInfo.VolCatParts);
+
+ /*
* Get next volume and ready it for append
* This code ensures that the device is ready for
* writing. We start from the assumption that there
- * may not be a tape mounted.
+ * may not be a tape mounted.
*
* If the device is a file, we create the output
* file. If it is a tape, we check the volume name
* and move the tape to the end of data.
*
- * It assumes that the device is not already in use!
- *
*/
- if (autoload_device(dcr, 1, NULL) > 0) {
+ if (autoload_device(dcr, true/*writing*/, NULL) > 0) {
autochanger = true;
ask = false;
} else {
autochanger = false;
- dcr->VolCatInfo.Slot = 0;
+ VolCatInfo.Slot = 0;
+ ask = true;
}
- Dmsg1(100, "autoload_dev returns %d\n", autochanger);
+ Dmsg1(150, "autoload_dev returns %d\n", autochanger);
/*
* If we autochanged to correct Volume or (we have not just
- * released the Volume AND we can automount) we go ahead
- * and read the label. If there is no tape in the drive,
- * we will err, recurse and ask the operator the next time.
+ * released the Volume AND we can automount) we go ahead
+ * and read the label. If there is no tape in the drive,
+ * we will fail, recurse and ask the operator the next time.
*/
- if (!release && dev_is_tape(dev) && dev_cap(dev, CAP_AUTOMOUNT)) {
+ if (!dev->must_unload() && dev->is_tape() && dev->has_cap(CAP_AUTOMOUNT)) {
+ Dmsg0(250, "(1)Ask=0\n");
ask = false; /* don't ask SYSOP this time */
}
/* Don't ask if not removable */
- if (!dev_cap(dev, CAP_REM)) {
+ if (!dev->is_removable()) {
+ Dmsg0(250, "(2)Ask=0\n");
ask = false;
}
- Dmsg2(100, "Ask=%d autochanger=%d\n", ask, autochanger);
- release = true; /* release next time if we "recurse" */
+ Dmsg2(250, "Ask=%d autochanger=%d\n", ask, autochanger);
- if (ask && !dir_ask_sysop_to_mount_volume(dcr)) {
- Dmsg0(100, "Error return ask_sysop ...\n");
- return false; /* error return */
+ if (ask) {
+ unlock_volumes();
+ if (!dir_ask_sysop_to_mount_volume(dcr, ST_APPEND)) {
+ Dmsg0(150, "Error return ask_sysop ...\n");
+ goto no_lock_bail_out;
+ }
+ lock_volumes();
}
if (job_canceled(jcr)) {
- return false;
+ goto bail_out;
}
- Dmsg1(100, "want vol=%s\n", dcr->VolumeName);
+ Dmsg3(150, "want vol=%s devvol=%s dev=%s\n", VolumeName,
+ dev->VolHdr.VolumeName, dev->print_name());
- if (dev->poll && dev_cap(dev, CAP_CLOSEONPOLL)) {
- force_close_dev(dev);
+ if (dev->poll && dev->has_cap(CAP_CLOSEONPOLL)) {
+ dev->close();
}
/* Ensure the device is open */
- if (!open_device(dcr)) {
- if (dev->poll) {
- goto mount_next_vol;
- } else {
- return false;
+ if (dev->has_cap(CAP_STREAM)) {
+ mode = OPEN_WRITE_ONLY;
+ } else {
+ mode = OPEN_READ_WRITE;
+ }
+ /* Try autolabel if enabled */
+ if (dev->open(dcr, mode) < 0) {
+ try_autolabel(false); /* try to create a new volume label */
+ }
+ while (dev->open(dcr, mode) < 0) {
+ Dmsg1(150, "open_device failed: ERR=%s\n", dev->bstrerror());
+ if ((dev->is_file() && dev->is_removable()) || dev->is_dvd()) {
+ bool ok = true;
+ Dmsg0(150, "call scan_dir_for_vol\n");
+ if (dev->is_dvd()) {
+ if (!dev->mount(0)) {
+ ok = false;
+ }
+ }
+ if (ok && dev->scan_dir_for_volume(dcr)) {
+ if (dev->open(dcr, mode) >= 0) {
+ break; /* got a valid volume */
+ }
+ }
+ if (ok && dev->is_dvd()) {
+ dev->unmount(0);
+ }
}
+ if (try_autolabel(false) == try_read_vol) {
+ break; /* created a new volume label */
+ }
+ Dmsg0(50, "set_unload\n");
+ dev->set_unload(); /* force ask sysop */
+ ask = true;
+ Dmsg0(150, "goto mount_next_vol\n");
+ goto mount_next_vol;
}
/*
- * Now make sure we have the right tape mounted
+ * Now check the volume label to make sure we have the right tape mounted
*/
read_volume:
- /*
+ switch (check_volume_label(ask, autochanger)) {
+ case check_next_vol:
+ Dmsg0(50, "set_unload\n");
+ dev->set_unload(); /* want a different Volume */
+ Dmsg0(150, "goto mount_next_vol\n");
+ goto mount_next_vol;
+ case check_read_vol:
+ goto read_volume;
+ case check_error:
+ goto bail_out;
+ case check_ok:
+ break;
+ }
+
+ /*
+ * See if we have a fresh tape or a tape with data.
+ *
+ * Note, if the LabelType is PRE_LABEL, it was labeled
+ * but never written. If so, rewrite the label but set as
+ * VOL_LABEL. We rewind and return the label (reconstructed)
+ * in the block so that in the case of a new tape, data can
+ * be appended just after the block label. If we are writing
+ * a second volume, the calling routine will write the label
+ * before writing the overflow block.
+ *
+ * If the tape is marked as Recycle, we rewrite the label.
+ */
+ recycle = strcmp(dev->VolCatInfo.VolCatStatus, "Recycle") == 0;
+ if (dev->VolHdr.LabelType == PRE_LABEL || recycle) {
+ if (!rewrite_volume_label(dcr, recycle)) {
+ mark_volume_in_error();
+ goto mount_next_vol;
+ }
+ } else {
+ /*
+ * OK, at this point, we have a valid Bacula label, but
+ * we need to position to the end of the volume, since we are
+ * just now putting it into append mode.
+ */
+ Dmsg0(200, "Device previously written, moving to end of data\n");
+ Jmsg(jcr, M_INFO, 0, _("Volume \"%s\" previously written, moving to end of data.\n"),
+ VolumeName);
+
+ if (!dev->eod(dcr)) {
+ Jmsg(jcr, M_ERROR, 0, _("Unable to position to end of data on device %s: ERR=%s\n"),
+ dev->print_name(), dev->bstrerror());
+ mark_volume_in_error();
+ goto mount_next_vol;
+ }
+ if (!is_eod_valid()) {
+ Dmsg0(150, "goto mount_next_vol\n");
+ goto mount_next_vol;
+ }
+
+ dev->VolCatInfo.VolCatMounts++; /* Update mounts */
+ Dmsg1(150, "update volinfo mounts=%d\n", dev->VolCatInfo.VolCatMounts);
+ if (!dir_update_volume_info(dcr, false, false)) {
+ goto bail_out;
+ }
+
+ /* Return an empty block */
+ empty_block(block); /* we used it for reading so set for write */
+ }
+ dev->set_append();
+ Dmsg1(150, "set APPEND, normal return from mount_next_write_volume. dev=%s\n",
+ dev->print_name());
+
+ unlock_volumes();
+ return true;
+
+bail_out:
+ unlock_volumes();
+
+no_lock_bail_out:
+ return false;
+}
+
+/*
+ * This routine is meant to be called once the first pass
+ * to ensure that we have a candidate volume to mount.
+ * Otherwise, we ask the sysop to created one.
+ */
+bool DCR::find_a_volume()
+{
+ DCR *dcr = this;
+ if (!is_suitable_volume_mounted()) {
+ bool have_vol = false;
+ /* Do we have a candidate volume? */
+ if (dev->vol) {
+ bstrncpy(VolumeName, dev->vol->vol_name, sizeof(VolumeName));
+ have_vol = dir_get_volume_info(this, GET_VOL_INFO_FOR_WRITE);
+ }
+ /*
+ * Get Director's idea of what tape we should have mounted.
+ * in dcr->VolCatInfo
+ */
+ if (!have_vol) {
+ Dmsg0(200, "Before dir_find_next_appendable_volume.\n");
+ while (!dir_find_next_appendable_volume(dcr)) {
+ Dmsg0(200, "not dir_find_next\n");
+ if (job_canceled(jcr)) {
+ unlock_volumes();
+ return false;
+ }
+ unlock_volumes();
+ if (!dir_ask_sysop_to_create_appendable_volume(dcr)) {
+ return false;
+ }
+ lock_volumes();
+ Dmsg0(150, "Again dir_find_next_append...\n");
+ }
+ }
+ }
+ return true;
+}
+
+int DCR::check_volume_label(bool &ask, bool &autochanger)
+{
+ int vol_label_status;
+ /*
* If we are writing to a stream device, ASSUME the volume label
* is correct.
*/
- if (dev_cap(dev, CAP_STREAM)) {
+ if (dev->has_cap(CAP_STREAM)) {
vol_label_status = VOL_OK;
- create_volume_label(dev, dcr->VolumeName, "Default");
+ create_volume_label(dev, VolumeName, "Default", false /* not DVD */);
dev->VolHdr.LabelType = PRE_LABEL;
} else {
- vol_label_status = read_dev_volume_label(dcr);
+ vol_label_status = read_dev_volume_label(this);
}
if (job_canceled(jcr)) {
- return false;
+ goto check_bail_out;
}
- Dmsg2(100, "dirVol=%s dirStat=%s\n", dcr->VolumeName,
- dcr->VolCatInfo.VolCatStatus);
+ Dmsg2(150, "Want dirVol=%s dirStat=%s\n", VolumeName,
+ VolCatInfo.VolCatStatus);
/*
* At this point, dev->VolCatInfo has what is in the drive, if anything,
- * and dcr->VolCatInfo has what the Director wants.
+ * and dcr->VolCatInfo has what the Director wants.
*/
switch (vol_label_status) {
case VOL_OK:
- Dmsg1(100, "Vol OK name=%s\n", dcr->VolumeName);
- memcpy(&dev->VolCatInfo, &dcr->VolCatInfo, sizeof(dev->VolCatInfo));
- recycle = strcmp(dev->VolCatInfo.VolCatStatus, "Recycle") == 0;
- break; /* got a Volume */
+ Dmsg1(150, "Vol OK name=%s\n", dev->VolHdr.VolumeName);
+ dev->VolCatInfo = VolCatInfo; /* structure assignment */
+ break; /* got a Volume */
case VOL_NAME_ERROR:
- VOLUME_CAT_INFO VolCatInfo;
+ VOLUME_CAT_INFO dcrVolCatInfo, devVolCatInfo;
+ char saveVolumeName[MAX_NAME_LENGTH];
+
+ Dmsg2(150, "Vol NAME Error Have=%s, want=%s\n", dev->VolHdr.VolumeName, VolumeName);
+ if (dev->is_volume_to_unload()) {
+ ask = true;
+ goto check_next_volume;
+ }
/* If not removable, Volume is broken */
- if (!dev_cap(dev, CAP_REM)) {
+ if (!dev->is_removable()) {
Jmsg(jcr, M_WARNING, 0, _("Volume \"%s\" not on device %s.\n"),
- dcr->VolumeName, dev_name(dev));
- mark_volume_in_error(dcr);
- goto mount_next_vol;
+ VolumeName, dev->print_name());
+ mark_volume_in_error();
+ goto check_next_volume;
}
-
- Dmsg1(100, "Vol NAME Error Name=%s\n", dcr->VolumeName);
- /* If polling and got a previous bad name, ignore it */
- if (dev->poll && strcmp(dev->BadVolName, dev->VolHdr.VolName) == 0) {
- ask = true;
- Dmsg1(200, "Vol Name error supress due to poll. Name=%s\n",
- dcr->VolumeName);
- goto mount_next_vol;
- }
- /*
+
+ /*
* OK, we got a different volume mounted. First save the
- * requested Volume info (jcr) structure, then query if
+ * requested Volume info (dcr) structure, then query if
* this volume is really OK. If not, put back the desired
- * volume name and continue.
+ * volume name, mark it not in changer and continue.
*/
- memcpy(&VolCatInfo, &dcr->VolCatInfo, sizeof(VolCatInfo));
+ dcrVolCatInfo = VolCatInfo; /* structure assignment */
+ devVolCatInfo = dev->VolCatInfo; /* structure assignment */
/* Check if this is a valid Volume in the pool */
- bstrncpy(dcr->VolumeName, dev->VolHdr.VolName, sizeof(dcr->VolumeName));
- if (!dir_get_volume_info(dcr, GET_VOL_INFO_FOR_WRITE)) {
- bstrncpy(dev->BadVolName, dev->VolHdr.VolName, sizeof(dev->BadVolName));
+ bstrncpy(saveVolumeName, VolumeName, sizeof(saveVolumeName));
+ bstrncpy(VolumeName, dev->VolHdr.VolumeName, sizeof(VolumeName));
+ if (!dir_get_volume_info(this, GET_VOL_INFO_FOR_WRITE)) {
+ POOL_MEM vol_info_msg;
+ pm_strcpy(vol_info_msg, jcr->dir_bsock->msg); /* save error message */
+ /* Restore desired volume name, note device info out of sync */
+ /* This gets the info regardless of the Pool */
+ bstrncpy(VolumeName, dev->VolHdr.VolumeName, sizeof(VolumeName));
+ if (autochanger && !dir_get_volume_info(this, GET_VOL_INFO_FOR_READ)) {
+ /*
+ * If we get here, we know we cannot write on the Volume,
+ * and we know that we cannot read it either, so it
+ * is not in the autochanger.
+ */
+ mark_volume_not_inchanger();
+ }
+ dev->VolCatInfo = devVolCatInfo; /* structure assignment */
+ dev->set_unload(); /* unload this volume */
Jmsg(jcr, M_WARNING, 0, _("Director wanted Volume \"%s\".\n"
" Current Volume \"%s\" not acceptable because:\n"
" %s"),
- VolCatInfo.VolCatName, dev->VolHdr.VolName,
- jcr->dir_bsock->msg);
- /* Restore desired volume name, note device info out of sync */
- memcpy(&dcr->VolCatInfo, &VolCatInfo, sizeof(dcr->VolCatInfo));
- ask = true;
- goto mount_next_vol;
+ dcrVolCatInfo.VolCatName, dev->VolHdr.VolumeName,
+ vol_info_msg.c_str());
+ ask = true;
+ /* Restore saved DCR before continuing */
+ bstrncpy(VolumeName, saveVolumeName, sizeof(VolumeName));
+ VolCatInfo = dcrVolCatInfo; /* structure assignment */
+ goto check_next_volume;
}
- Dmsg1(100, "want new name=%s\n", dcr->VolumeName);
- memcpy(&dev->VolCatInfo, &dcr->VolCatInfo, sizeof(dev->VolCatInfo));
- recycle = strcmp(dev->VolCatInfo.VolCatStatus, "Recycle") == 0;
- break; /* got a Volume */
+ /*
+ * This was not the volume we expected, but it is OK with
+ * the Director, so use it.
+ */
+ Dmsg1(150, "Got new Volume name=%s\n", VolumeName);
+ dev->VolCatInfo = VolCatInfo; /* structure assignment */
+ Dmsg1(100, "Call reserve_volume=%s\n", dev->VolHdr.VolumeName);
+ if (reserve_volume(this, dev->VolHdr.VolumeName) == NULL) {
+ Jmsg2(jcr, M_WARNING, 0, _("Could not reserve volume %s on %s\n"),
+ dev->VolHdr.VolumeName, dev->print_name());
+ ask = true;
+ goto check_next_volume;
+ }
+ break; /* got a Volume */
/*
* At this point, we assume we have a blank tape mounted.
*/
- case VOL_NO_LABEL:
case VOL_IO_ERROR:
- /*
- * If permitted, we label the device, make sure we can do
- * it by checking that the VolCatBytes is zero => not labeled,
- * once the Volume is labeled we don't want to label another
- * blank tape with the same name. For disk, we go ahead and
- * label it anyway, because the OS insures that there is only
- * one Volume with that name.
- * As noted above, at this point dcr->VolCatInfo has what
- * the Director wants and dev->VolCatInfo has info on the
- * previous tape (or nothing).
- */
- if (dev_cap(dev, CAP_LABEL) && (dcr->VolCatInfo.VolCatBytes == 0 ||
- (!dev_is_tape(dev) && strcmp(dcr->VolCatInfo.VolCatStatus,
- "Recycle") == 0))) {
- Dmsg0(100, "Create volume label\n");
- /* Create a new Volume label and write it to the device */
- if (!write_new_volume_label_to_dev(dcr, dcr->VolumeName,
- dcr->pool_name)) {
- Dmsg0(100, "!write_vol_label\n");
- goto mount_next_vol;
- }
- Dmsg0(100, "dir_update_vol_info. Set Append\n");
- /* Copy Director's info into the device info */
- memcpy(&dev->VolCatInfo, &dcr->VolCatInfo, sizeof(dev->VolCatInfo));
- if (!dir_update_volume_info(dcr, true)) { /* indicate tape labeled */
- return false;
- }
- Jmsg(jcr, M_INFO, 0, _("Labeled new Volume \"%s\" on device %s.\n"),
- dcr->VolumeName, dev_name(dev));
- goto read_volume; /* read label we just wrote */
- }
- /* If not removable, Volume is broken */
- if (!dev_cap(dev, CAP_REM)) {
- Jmsg(jcr, M_WARNING, 0, _("Volume \"%s\" not on device %s.\n"),
- dcr->VolumeName, dev_name(dev));
- mark_volume_in_error(dcr);
- goto mount_next_vol;
+ if (dev->is_dvd()) {
+ Jmsg(jcr, M_FATAL, 0, "%s", jcr->errmsg);
+ mark_volume_in_error();
+ goto check_bail_out; /* we could not write on DVD */
}
+ /* Fall through wanted */
+ case VOL_NO_LABEL:
+ switch (try_autolabel(true)) {
+ case try_next_vol:
+ goto check_next_volume;
+ case try_read_vol:
+ goto check_read_volume;
+ case try_error:
+ goto check_bail_out;
+ case try_default:
+ break;
+ }
+
/* NOTE! Fall-through wanted. */
case VOL_NO_MEDIA:
default:
+ Dmsg0(200, "VOL_NO_MEDIA or default.\n");
/* Send error message */
if (!dev->poll) {
- Jmsg(jcr, M_WARNING, 0, "%s", jcr->errmsg);
} else {
Dmsg1(200, "Msg suppressed by poll: %s\n", jcr->errmsg);
}
ask = true;
- goto mount_next_vol;
+ /* Needed, so the medium can be changed */
+ if (dev->requires_mount()) {
+ dev->close();
+ }
+ goto check_next_volume;
}
+ return check_ok;
- /*
- * See if we have a fresh tape or a tape with data.
- *
- * Note, if the LabelType is PRE_LABEL, it was labeled
- * but never written. If so, rewrite the label but set as
- * VOL_LABEL. We rewind and return the label (reconstructed)
- * in the block so that in the case of a new tape, data can
- * be appended just after the block label. If we are writing
- * a second volume, the calling routine will write the label
- * before writing the overflow block.
- *
- * If the tape is marked as Recycle, we rewrite the label.
+check_next_volume:
+ return check_next_vol;
+
+check_bail_out:
+ return check_error;
+
+check_read_volume:
+ return check_read_vol;
+
+}
+
+
+bool DCR::is_suitable_volume_mounted()
+{
+ /* Volume mounted? */
+ if (dev->VolHdr.VolumeName[0] == 0 || dev->swap_dev || dev->must_unload()) {
+ return false; /* no */
+ }
+ bstrncpy(VolumeName, dev->VolHdr.VolumeName, sizeof(VolumeName));
+ return dir_get_volume_info(this, GET_VOL_INFO_FOR_WRITE);
+}
+
+void DCR::do_swapping(bool is_writing)
+{
+ if (dev->must_unload()) {
+ Dmsg1(100, "must_unload release %s\n", dev->print_name());
+ release_volume();
+ }
+ /*
+ * See if we are asked to swap the Volume from another device
+ * if so, unload the other device here, and attach the
+ * volume to our drive.
*/
- if (dev->VolHdr.LabelType == PRE_LABEL || recycle) {
- if (!rewrite_volume_label(dcr, recycle)) {
- goto mount_next_vol;
+ if (dev->swap_dev) {
+ if (dev->swap_dev->must_unload()) {
+ if (dev->vol) {
+ dev->swap_dev->set_slot(dev->vol->get_slot());
+ }
+ Dmsg2(100, "Swap unloading slot=%d %s\n", dev->swap_dev->get_slot(),
+ dev->swap_dev->print_name());
+ unload_dev(this, dev->swap_dev);
}
- } else {
+ if (dev->vol) {
+ dev->vol->clear_swapping();
+ Dmsg1(100, "=== set in_use vol=%s\n", dev->vol->vol_name);
+ dev->vol->set_in_use();
+ dev->VolHdr.VolumeName[0] = 0; /* don't yet have right Volume */
+ }
+ dev->swap_dev = NULL;
+ }
+ if (dev->must_load()) {
+ Dmsg1(100, "Must load %s\n", dev->print_name());
+ if (autoload_device(this, is_writing, NULL) > 0) {
+ dev->clear_load();
+ }
+ }
+}
+
+
+/*
+ * Check if the current position on the volume corresponds to
+ * what is in the catalog.
+ */
+bool DCR::is_eod_valid()
+{
+ if (dev->is_dvd()) {
+ char ed1[50], ed2[50];
+ if (dev->VolCatInfo.VolCatBytes == dev->part_start + dev->part_size) {
+ Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\""
+ " part=%d size=%s\n"), VolumeName,
+ dev->part, edit_uint64(dev->VolCatInfo.VolCatBytes,ed1));
+ } else {
+ Jmsg(jcr, M_ERROR, 0, _("Bacula cannot write on DVD Volume \"%s\" because: "
+ "The sizes do not match! Volume=%s Catalog=%s\n"),
+ VolumeName,
+ edit_uint64(dev->part_start + dev->part_size, ed1),
+ edit_uint64(dev->VolCatInfo.VolCatBytes, ed2));
+ mark_volume_in_error();
+ return false;
+ }
+ } else if (dev->is_tape()) {
/*
- * OK, at this point, we have a valid Bacula label, but
- * we need to position to the end of the volume, since we are
- * just now putting it into append mode.
+ * Check if we are positioned on the tape at the same place
+ * that the database says we should be.
*/
- Dmsg0(200, "Device previously written, moving to end of data\n");
- Jmsg(jcr, M_INFO, 0, _("Volume \"%s\" previously written, moving to end of data.\n"),
- dcr->VolumeName);
- if (!eod_dev(dev)) {
- Jmsg(jcr, M_ERROR, 0, _("Unable to position to end of data on device \"%s\". ERR=%s\n"),
- dev_name(dev), strerror_dev(dev));
- mark_volume_in_error(dcr);
- goto mount_next_vol;
- }
- /* *****FIXME**** we should do some checking for files too */
- if (dev_is_tape(dev)) {
- /*
- * Check if we are positioned on the tape at the same place
- * that the database says we should be.
- */
- if (dev->VolCatInfo.VolCatFiles == dev_file(dev)) {
- Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\" at file=%d.\n"),
- dcr->VolumeName, dev_file(dev));
- } else {
- Jmsg(jcr, M_ERROR, 0, _("I canot write on Volume \"%s\" because:\n\
-The number of files mismatch! Volume=%u Catalog=%u\n"),
- dcr->VolumeName, dev_file(dev), dev->VolCatInfo.VolCatFiles);
- mark_volume_in_error(dcr);
- goto mount_next_vol;
- }
+ if (dev->VolCatInfo.VolCatFiles == dev->get_file()) {
+ Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\" at file=%d.\n"),
+ VolumeName, dev->get_file());
+ } else {
+ Jmsg(jcr, M_ERROR, 0, _("Bacula cannot write on tape Volume \"%s\" because:\n"
+ "The number of files mismatch! Volume=%u Catalog=%u\n"),
+ VolumeName, dev->get_file(), dev->VolCatInfo.VolCatFiles);
+ mark_volume_in_error();
+ return false;
}
- dev->VolCatInfo.VolCatMounts++; /* Update mounts */
- Dmsg1(100, "update volinfo mounts=%d\n", dev->VolCatInfo.VolCatMounts);
- if (!dir_update_volume_info(dcr, false)) {
- return false;
+ } else if (dev->is_file()) {
+ char ed1[50], ed2[50];
+ boffset_t pos;
+ pos = dev->lseek(this, (boffset_t)0, SEEK_END);
+ if (dev->VolCatInfo.VolCatBytes == (uint64_t)pos) {
+ Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\""
+ " size=%s\n"), VolumeName,
+ edit_uint64(dev->VolCatInfo.VolCatBytes, ed1));
+ } else {
+ Jmsg(jcr, M_ERROR, 0, _("Bacula cannot write on disk Volume \"%s\" because: "
+ "The sizes do not match! Volume=%s Catalog=%s\n"),
+ VolumeName,
+ edit_uint64(pos, ed1),
+ edit_uint64(dev->VolCatInfo.VolCatBytes, ed2));
+ mark_volume_in_error();
+ return false;
}
- /* Return an empty block */
- empty_block(block); /* we used it for reading so set for write */
}
- dev->state |= ST_APPEND;
- Dmsg0(100, "set APPEND, normal return from read_dev_for_append\n");
return true;
}
+
/*
- * Write a volume label.
- * Returns: true if OK
- * false if unable to write it
+ * If permitted, we label the device, make sure we can do
+ * it by checking that the VolCatBytes is zero => not labeled,
+ * once the Volume is labeled we don't want to label another
+ * blank tape with the same name. For disk, we go ahead and
+ * label it anyway, because the OS insures that there is only
+ * one Volume with that name.
+ * As noted above, at this point dcr->VolCatInfo has what
+ * the Director wants and dev->VolCatInfo has info on the
+ * previous tape (or nothing).
+ *
+ * Return codes are:
+ * try_next_vol label failed, look for another volume
+ * try_read_vol labeled volume, now re-read the label
+ * try_error hard error (catalog update)
+ * try_default I couldn't do anything
*/
-static bool rewrite_volume_label(DCR *dcr, bool recycle)
+int DCR::try_autolabel(bool opened)
{
- DEVICE *dev = dcr->dev;
- JCR *jcr = dcr->jcr;
+ DCR *dcr = this;
- Dmsg1(190, "set append found freshly labeled volume. dev=%x\n", dev);
- dev->VolHdr.LabelType = VOL_LABEL; /* set Volume label */
- dev->state |= ST_APPEND;
- if (!write_volume_label_to_block(dcr)) {
- Dmsg0(200, "Error from write volume label.\n");
- return false;
+ if (dev->poll && !dev->is_tape()) {
+ return try_default; /* if polling, don't try to create new labels */
}
- /*
- * If we are not dealing with a streaming device,
- * write the block now to ensure we have write permission.
- * It is better to find out now rather than later.
- */
- if (!dev_cap(dev, CAP_STREAM)) {
- if (!rewind_dev(dev)) {
- Jmsg2(jcr, M_WARNING, 0, _("Rewind error on device \"%s\". ERR=%s\n"),
- dev_name(dev), strerror_dev(dev));
- }
- if (recycle) {
- if (!truncate_dev(dev)) {
- Jmsg2(jcr, M_WARNING, 0, _("Truncate error on device \"%s\". ERR=%s\n"),
- dev_name(dev), strerror_dev(dev));
- }
+ /* For a tape require it to be opened and read before labeling */
+ if (!opened && dev->is_tape()) {
+ return try_default;
+ }
+ if (dev->has_cap(CAP_LABEL) && (VolCatInfo.VolCatBytes == 0 ||
+ (!dev->is_tape() && strcmp(VolCatInfo.VolCatStatus,
+ "Recycle") == 0))) {
+ Dmsg0(150, "Create volume label\n");
+ /* Create a new Volume label and write it to the device */
+ if (!write_new_volume_label_to_dev(dcr, VolumeName,
+ pool_name, false, /* no relabel */ false /* defer DVD label */)) {
+ Dmsg2(150, "write_vol_label failed. vol=%s, pool=%s\n",
+ VolumeName, pool_name);
+ if (opened) {
+ mark_volume_in_error();
+ }
+ return try_next_vol;
}
- /* Attempt write to check write permission */
- Dmsg0(200, "Attempt to write to device.\n");
- if (!write_block_to_dev(dcr)) {
- Jmsg2(jcr, M_ERROR, 0, _("Unable to write device \"%s\". ERR=%s\n"),
- dev_name(dev), strerror_dev(dev));
- Dmsg0(200, "===ERROR write block to dev\n");
- return false;
+ Dmsg0(150, "dir_update_vol_info. Set Append\n");
+ /* Copy Director's info into the device info */
+ dev->VolCatInfo = VolCatInfo; /* structure assignment */
+ if (!dir_update_volume_info(dcr, true, true)) { /* indicate tape labeled */
+ return try_error;
}
+ Jmsg(dcr->jcr, M_INFO, 0, _("Labeled new Volume \"%s\" on device %s.\n"),
+ VolumeName, dev->print_name());
+ return try_read_vol; /* read label we just wrote */
}
- /* Set or reset Volume statistics */
- dev->VolCatInfo.VolCatJobs = 0;
- dev->VolCatInfo.VolCatFiles = 0;
- dev->VolCatInfo.VolCatBytes = 1;
- dev->VolCatInfo.VolCatErrors = 0;
- dev->VolCatInfo.VolCatBlocks = 0;
- dev->VolCatInfo.VolCatRBytes = 0;
- if (recycle) {
- dev->VolCatInfo.VolCatMounts++;
- dev->VolCatInfo.VolCatRecycles++;
- } else {
- dev->VolCatInfo.VolCatMounts = 1;
- dev->VolCatInfo.VolCatRecycles = 0;
- dev->VolCatInfo.VolCatWrites = 1;
- dev->VolCatInfo.VolCatReads = 1;
- }
- Dmsg0(100, "dir_update_vol_info. Set Append\n");
- bstrncpy(dev->VolCatInfo.VolCatStatus, "Append", sizeof(dev->VolCatInfo.VolCatStatus));
- if (!dir_update_volume_info(dcr, true)) { /* indicate doing relabel */
- return false;
- }
- if (recycle) {
- Jmsg(jcr, M_INFO, 0, _("Recycled volume \"%s\" on device \"%s\", all previous data lost.\n"),
- dcr->VolumeName, dev_name(dev));
- } else {
- Jmsg(jcr, M_INFO, 0, _("Wrote label to prelabeled Volume \"%s\" on device \"%s\"\n"),
- dcr->VolumeName, dev_name(dev));
+ if (!dev->has_cap(CAP_LABEL) && VolCatInfo.VolCatBytes == 0) {
+ Jmsg(jcr, M_WARNING, 0, _("Device %s not configured to autolabel Volumes.\n"),
+ dev->print_name());
}
- /*
- * End writing real Volume label (from pre-labeled tape), or recycling
- * the volume.
- */
- Dmsg0(200, "OK from rewite vol label.\n");
- return true;
+ /* If not removable, Volume is broken */
+ if (!dev->is_removable()) {
+ Jmsg(jcr, M_WARNING, 0, _("Volume \"%s\" not on device %s.\n"),
+ VolumeName, dev->print_name());
+ mark_volume_in_error();
+ return try_next_vol;
+ }
+ return try_default;
}
/*
- * Mark volume in error in catalog
+ * Mark volume in error in catalog
*/
-void mark_volume_in_error(DCR *dcr)
+void DCR::mark_volume_in_error()
{
- DEVICE *dev = dcr->dev;
- Jmsg(dcr->jcr, M_INFO, 0, _("Marking Volume \"%s\" in Error in Catalog.\n"),
- dcr->VolumeName);
+ Jmsg(jcr, M_INFO, 0, _("Marking Volume \"%s\" in Error in Catalog.\n"),
+ VolumeName);
+ dev->VolCatInfo = VolCatInfo; /* structure assignment */
bstrncpy(dev->VolCatInfo.VolCatStatus, "Error", sizeof(dev->VolCatInfo.VolCatStatus));
- Dmsg0(100, "dir_update_vol_info. Set Error.\n");
- dir_update_volume_info(dcr, false);
+ Dmsg0(150, "dir_update_vol_info. Set Error.\n");
+ dir_update_volume_info(this, false, false);
+ volume_unused(this);
+ Dmsg0(50, "set_unload\n");
+ dev->set_unload(); /* must get a new volume */
}
-/*
- * If we are reading, we come here at the end of the tape
- * and see if there are more volumes to be mounted.
+/*
+ * The Volume is not in the correct slot, so mark this
+ * Volume as not being in the Changer.
*/
-bool mount_next_read_volume(DCR *dcr)
+void DCR::mark_volume_not_inchanger()
{
- DEVICE *dev = dcr->dev;
- JCR *jcr = dcr->jcr;
- Dmsg2(90, "NumVolumes=%d CurVolume=%d\n", jcr->NumVolumes, jcr->CurVolume);
- /*
- * End Of Tape -- mount next Volume (if another specified)
- */
- if (jcr->NumVolumes > 1 && jcr->CurVolume < jcr->NumVolumes) {
- close_dev(dev);
- dev->state &= ~ST_READ;
- if (!acquire_device_for_read(jcr)) {
- Jmsg2(jcr, M_FATAL, 0, "Cannot open Dev=%s, Vol=%s\n", dev_name(dev),
- dcr->VolumeName);
- return false;
- }
- return true; /* next volume mounted */
- }
- Dmsg0(90, "End of Device reached.\n");
- return false;
+ Jmsg(jcr, M_ERROR, 0, _("Autochanger Volume \"%s\" not found in slot %d.\n"
+" Setting InChanger to zero in catalog.\n"),
+ VolCatInfo.VolCatName, VolCatInfo.Slot);
+ dev->VolCatInfo = VolCatInfo; /* structure assignment */
+ VolCatInfo.InChanger = false;
+ dev->VolCatInfo.InChanger = false;
+ Dmsg0(400, "update vol info in mount\n");
+ dir_update_volume_info(this, true, false); /* set new status */
}
/*
* Either because we are going to hang a new volume, or because
* of explicit user request, we release the current volume.
*/
-void release_volume(DCR *dcr)
+void DCR::release_volume()
{
- JCR *jcr = dcr->jcr;
- DEVICE *dev = dcr->dev;
- if (dcr->WroteVol) {
- Jmsg0(jcr, M_ERROR, 0, "Hey!!!!! WroteVol non-zero !!!!!\n");
- Dmsg0(190, "Hey!!!!! WroteVol non-zero !!!!!\n");
+ unload_autochanger(this, -1);
+
+ if (WroteVol) {
+ Jmsg0(jcr, M_ERROR, 0, _("Hey!!!!! WroteVol non-zero !!!!!\n"));
+ Pmsg0(190, "Hey!!!!! WroteVol non-zero !!!!!\n");
}
- /*
- * First erase all memory of the current volume
+ /*
+ * First erase all memory of the current volume
*/
+ free_volume(dev);
dev->block_num = dev->file = 0;
dev->EndBlock = dev->EndFile = 0;
memset(&dev->VolCatInfo, 0, sizeof(dev->VolCatInfo));
- memset(&dcr->VolCatInfo, 0, sizeof(dcr->VolCatInfo));
- memset(&dev->VolHdr, 0, sizeof(dev->VolHdr));
+ dev->clear_volhdr();
/* Force re-read of label */
- dev->state &= ~(ST_LABEL|ST_READ|ST_APPEND);
- dcr->VolumeName[0] = 0;
+ dev->clear_labeled();
+ dev->clear_read();
+ dev->clear_append();
+ dev->label_type = B_BACULA_LABEL;
+ VolumeName[0] = 0;
- if ((dev->state & ST_OPENED) &&
- (!dev_is_tape(dev) || !dev_cap(dev, CAP_ALWAYSOPEN))) {
- offline_or_rewind_dev(dev);
- close_dev(dev);
+ if (dev->is_open() && (!dev->is_tape() || !dev->has_cap(CAP_ALWAYSOPEN))) {
+ dev->close();
}
/* If we have not closed the device, then at least rewind the tape */
- if (dev->state & ST_OPENED) {
- offline_or_rewind_dev(dev);
+ if (dev->is_open()) {
+ dev->offline_or_rewind();
+ }
+// Dmsg0(50, "set_unload\n");
+// dev->set_unload();
+ Dmsg0(190, "release_volume\n");
+}
+
+/*
+ * Insanity check
+ *
+ * Check to see if the tape position as defined by the OS is
+ * the same as our concept. If it is not,
+ * it means the user has probably manually rewound the tape.
+ * Note, we check only if num_writers == 0, but this code will
+ * also work fine for any number of writers. If num_writers > 0,
+ * we probably should cancel all jobs using this device, or
+ * perhaps even abort the SD, or at a minimum, mark the tape
+ * in error. Another strategy with num_writers == 0, would be
+ * to rewind the tape and do a new eod() request.
+ */
+bool DCR::is_tape_position_ok()
+{
+ if (dev->is_tape() && dev->num_writers == 0) {
+ int32_t file = dev->get_os_tape_file();
+ if (file >= 0 && file != (int32_t)dev->get_file()) {
+ Jmsg(jcr, M_ERROR, 0, _("Invalid tape position on volume \"%s\""
+ " on device %s. Expected %d, got %d\n"),
+ dev->VolHdr.VolumeName, dev->print_name(), dev->get_file(), file);
+ /*
+ * If the current file is greater than zero, it means we probably
+ * have some bad count of EOF marks, so mark tape in error. Otherwise
+ * the operator might have moved the tape, so we just release it
+ * and try again.
+ */
+ if (file > 0) {
+ mark_volume_in_error();
+ }
+ release_volume();
+ return false;
+ }
}
- Dmsg0(190, "===== release_volume ---");
+ return true;
+}
+
+
+/*
+ * If we are reading, we come here at the end of the tape
+ * and see if there are more volumes to be mounted.
+ */
+bool mount_next_read_volume(DCR *dcr)
+{
+ DEVICE *dev = dcr->dev;
+ JCR *jcr = dcr->jcr;
+ Dmsg2(90, "NumReadVolumes=%d CurReadVolume=%d\n", jcr->NumReadVolumes, jcr->CurReadVolume);
+
+ volume_unused(dcr); /* release current volume */
+ /*
+ * End Of Tape -- mount next Volume (if another specified)
+ */
+ if (jcr->NumReadVolumes > 1 && jcr->CurReadVolume < jcr->NumReadVolumes) {
+ dev->close();
+ if (!acquire_device_for_read(dcr)) {
+ Jmsg2(jcr, M_FATAL, 0, _("Cannot open Dev=%s, Vol=%s\n"), dev->print_name(),
+ dcr->VolumeName);
+ return false;
+ }
+ return true; /* next volume mounted */
+ }
+ Dmsg0(90, "End of Device reached.\n");
+ return false;
}
projects / bacula / bacula / blobdiff