+/*
+ Bacula® - The Network Backup Solution
+
+ Copyright (C) 2005-2010 Free Software Foundation Europe e.V.
+
+ 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 three of the GNU Affero 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
+ 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 Affero 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 Kern Sibbald.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
/*
*
* dvd.c -- Routines specific to DVD devices (and
*
* Nicolas Boichat, MMV
*
- * Version $Id$
- */
-/*
- Copyright (C) 2005 Kern Sibbald
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- version 2 as amended with additional clauses defined in the
- file LICENSE in the main source directory.
-
- 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
- the file LICENSE for additional details.
-
*/
#include "bacula.h"
#include "stored.h"
/* Forward referenced functions */
-static char *edit_device_codes_dev(DEVICE *dev, char *omsg, const char *imsg);
-static bool do_mount_dev(DEVICE* dev, int mount, int dotimeout);
static void add_file_and_part_name(DEVICE *dev, POOL_MEM &archive_name);
/*
static void add_file_and_part_name(DEVICE *dev, POOL_MEM &archive_name)
{
char partnumber[20];
- if (archive_name.c_str()[strlen(archive_name.c_str())-1] != '/') {
+
+ if (!IsPathSeparator(archive_name.c_str()[strlen(archive_name.c_str())-1])) {
pm_strcat(archive_name, "/");
}
- pm_strcat(archive_name, dev->VolCatInfo.VolCatName);
+ pm_strcat(archive_name, dev->getVolCatName());
/* if part > 1, append .# to the filename (where # is the part number) */
if (dev->part > 1) {
pm_strcat(archive_name, ".");
bsnprintf(partnumber, sizeof(partnumber), "%d", dev->part);
pm_strcat(archive_name, partnumber);
}
- Dmsg1(100, "Exit make_dvd_filename: arch=%s\n", archive_name.c_str());
+ Dmsg2(400, "Exit add_file_part_name: arch=%s, part=%d\n",
+ archive_name.c_str(), dev->part);
}
-/* Mount the device.
- * If timeout, wait until the mount command returns 0.
- * If !timeout, try to mount the device only once.
- */
-bool mount_dev(DEVICE* dev, int timeout)
-{
- Dmsg0(900, "Enter mount_dev\n");
- if (dev->is_mounted()) {
- return true;
- } else if (dev->requires_mount()) {
- return do_mount_dev(dev, 1, timeout);
- }
- return true;
-}
-
-/* Unmount the device
- * If timeout, wait until the unmount command returns 0.
- * If !timeout, try to unmount the device only once.
- */
-bool unmount_dev(DEVICE *dev, int timeout)
-{
- Dmsg0(900, "Enter unmount_dev\n");
- if (dev->is_mounted()) {
- return do_mount_dev(dev, 0, timeout);
- }
- return true;
-}
-
-/* (Un)mount the device */
-static bool do_mount_dev(DEVICE* dev, int mount, int dotimeout)
-{
- POOL_MEM ocmd(PM_FNAME);
- POOLMEM *results;
- char *icmd;
- int status, timeout;
-
- if (mount) {
- if (dev->is_mounted()) {
- return true;
- }
- icmd = dev->device->mount_command;
- } else {
- if (!dev->is_mounted()) {
- return true;
- }
- icmd = dev->device->unmount_command;
- }
-
- edit_device_codes_dev(dev, ocmd.c_str(), icmd);
-
- Dmsg2(200, "do_mount_dev: cmd=%s mounted=%d\n", ocmd.c_str(), !!dev->is_mounted());
-
- if (dotimeout) {
- /* Try at most 1 time to (un)mount the device. This should perhaps be configurable. */
- timeout = 1;
- } else {
- timeout = 0;
- }
- results = get_pool_memory(PM_MESSAGE);
- results[0] = 0;
- /* If busy retry each second */
- while ((status = run_program_full_output(ocmd.c_str(),
- dev->max_open_wait/2, results)) != 0) {
- Dmsg1(100, "results len=%d\n", strlen(results));
- if (fnmatch("*is already mounted on", results, 0) == 0) {
- break;
- }
- if (timeout-- > 0) {
- /* Sometimes the device cannot be mounted because it is already mounted.
- * Try to unmount it, then remount it */
- if (mount) {
- Dmsg1(400, "Trying to unmount the device %s...\n", dev->print_name());
- do_mount_dev(dev, 0, 0);
- }
- bmicrosleep(1, 0);
- continue;
- }
- Dmsg2(40, "Device %s cannot be mounted. ERR=%s\n", dev->print_name(), results);
- Mmsg(dev->errmsg, "Device %s cannot be mounted. ERR=%s\n",
- dev->print_name(), results);
-#ifdef xxx
- /*
- * Now, just to be sure it is not mounted, try to read the
- * filesystem.
- */
- DIR* dp;
- struct dirent *entry, *result;
- int name_max;
- int count = 0;
-
- name_max = pathconf(".", _PC_NAME_MAX);
- if (name_max < 1024) {
- name_max = 1024;
- }
-
- if (!(dp = opendir(dev->device->mount_point))) {
- berrno be;
- dev->dev_errno = errno;
- Dmsg3(29, "open_mounted_dev: failed to open dir %s (dev=%s), ERR=%s\n", dev->device->mount_point, dev->dev_name, be.strerror());
- goto get_out;
- }
-
- entry = (struct dirent *)malloc(sizeof(struct dirent) + name_max + 1000);
- while (1) {
- if ((readdir_r(dp, entry, &result) != 0) || (result == NULL)) {
- dev->dev_errno = ENOENT;
- Dmsg2(29, "open_mounted_dev: failed to find suitable file in dir %s (dev=%s)\n", dev->device->mount_point, dev->dev_name);
- break;
- }
- count++;
- }
- free(entry);
- closedir(dp);
- if (count > 2) {
- mount = 1; /* If we got more than . and .. */
- break; /* there must be something mounted */
- }
-get_out:
-#endif
- free_pool_memory(results);
- return false;
- }
-
- dev->set_mounted(mount); /* set/clear mounted flag */
- free_pool_memory(results);
- return true;
-}
-
/* Update the free space on the device */
-void update_free_space_dev(DEVICE* dev)
+bool DEVICE::update_freespace()
{
POOL_MEM ocmd(PM_FNAME);
POOLMEM* results;
char* icmd;
int timeout;
- long long int free;
+ uint64_t free;
char ed1[50];
+ bool ok = false;
+ int status;
+
+ if (!is_dvd() || is_freespace_ok()) {
+ return true;
+ }
+
+ /* The device must be mounted in order to dvd-freespace to work */
+ mount(1);
- icmd = dev->device->free_space_command;
+ sm_check(__FILE__, __LINE__, false);
+ icmd = device->free_space_command;
if (!icmd) {
- dev->free_space = 0;
- dev->free_space_errno = 0;
- dev->clear_media();
- Dmsg2(29, "update_free_space_dev: free_space=%d, free_space_errno=%d (!icmd)\n", dev->free_space, dev->free_space_errno);
- return;
+ free_space = 0;
+ free_space_errno = 0;
+ clear_freespace_ok(); /* No valid freespace */
+ clear_media();
+ Dmsg2(29, "ERROR: update_free_space_dev: free_space=%s, free_space_errno=%d (!icmd)\n",
+ edit_uint64(free_space, ed1), free_space_errno);
+ Mmsg(errmsg, _("No FreeSpace command defined.\n"));
+ return false;
}
- edit_device_codes_dev(dev, ocmd.c_str(), icmd);
+ edit_mount_codes(ocmd, icmd);
- Dmsg1(29, "update_free_space_dev: cmd=%s\n", ocmd.c_str());
+ Dmsg1(29, "update_freespace: cmd=%s\n", ocmd.c_str());
results = get_pool_memory(PM_MESSAGE);
- results[0] = 0;
/* Try at most 3 times to get the free space on the device. This should perhaps be configurable. */
timeout = 3;
while (1) {
- if (run_program_full_output(ocmd.c_str(), dev->max_open_wait/2, results) == 0) {
- Dmsg1(100, "results len=%d\n", strlen(results));
- Dmsg1(100, "Free space program run : %s\n", results);
+ berrno be;
+ Dmsg1(20, "Run freespace prog=%s\n", ocmd.c_str());
+ status = run_program_full_output(ocmd.c_str(), max_open_wait/2, results);
+ Dmsg2(500, "Freespace status=%d result=%s\n", status, results);
+ if (status == 0) {
free = str_to_int64(results);
+ Dmsg1(400, "Free space program run: Freespace=%s\n", results);
if (free >= 0) {
- dev->free_space = free;
- dev->free_space_errno = 1;
- dev->set_media();
- Mmsg0(dev->errmsg, "");
+ free_space = free;
+ free_space_errno = 0;
+ set_freespace_ok(); /* have valid freespace */
+ set_media();
+ Mmsg(errmsg, "");
+ ok = true;
break;
}
}
- dev->free_space = 0;
- dev->free_space_errno = -EPIPE;
- Mmsg1(dev->errmsg, "Cannot run free space command (%s)\n", results);
+ free_space = 0;
+ free_space_errno = EPIPE;
+ clear_freespace_ok(); /* no valid freespace */
+ Mmsg2(errmsg, _("Cannot run free space command. Results=%s ERR=%s\n"),
+ results, be.bstrerror(status));
if (--timeout > 0) {
Dmsg4(40, "Cannot get free space on device %s. free_space=%s, "
- "free_space_errno=%d ERR=%s\n", dev->dev_name,
- edit_uint64(dev->free_space, ed1), dev->free_space_errno,
- dev->errmsg);
+ "free_space_errno=%d ERR=%s\n", print_name(),
+ edit_uint64(free_space, ed1), free_space_errno,
+ errmsg);
bmicrosleep(1, 0);
continue;
}
- dev->dev_errno = -dev->free_space_errno;
+ dev_errno = free_space_errno;
Dmsg4(40, "Cannot get free space on device %s. free_space=%s, "
"free_space_errno=%d ERR=%s\n",
- dev->dev_name, edit_uint64(dev->free_space, ed1),
- dev->free_space_errno, dev->errmsg);
+ print_name(), edit_uint64(free_space, ed1),
+ free_space_errno, errmsg);
break;
}
free_pool_memory(results);
- Dmsg3(29, "update_free_space_dev: free_space=%s, free_space_errno=%d have_media=%d\n",
- edit_uint64(dev->free_space, ed1), dev->free_space_errno, dev->have_media());
- return;
+ Dmsg4(29, "leave update_freespace: free_space=%s freespace_ok=%d free_space_errno=%d have_media=%d\n",
+ edit_uint64(free_space, ed1), !!is_freespace_ok(), free_space_errno, !!have_media());
+ sm_check(__FILE__, __LINE__, false);
+ return ok;
}
/*
- * Write a part (Vol, Vol.1, ...) from the spool to the DVD
+ * Note!!!! Part numbers now begin at 1. The part number is
+ * suppressed from the first part, which is just the Volume
+ * name. Each subsequent part is the Volumename.partnumber.
+ *
+ * Write a part (Vol, Vol.2, ...) from the spool to the DVD
+ * This routine does not update the part number, so normally, you
+ * should call open_next_part()
+ *
+ * It is also called from truncate_dvd to "blank" the medium, as
+ * well as from block.c when the DVD is full to write the last part.
*/
-static bool dvd_write_part(DCR *dcr)
+bool dvd_write_part(DCR *dcr)
{
DEVICE *dev = dcr->dev;
- Dmsg1(29, "dvd_write_part: device is %s\n", dev->print_name());
+ POOL_MEM archive_name(PM_FNAME);
- if (!unmount_dev(dev, 1)) {
- Dmsg0(29, "dvd_write_part: unable to unmount the device\n");
+ /*
+ * Don't write empty part files.
+ * This is only useful when growisofs does not support write beyond
+ * the 4GB boundary.
+ * Example :
+ * - 3.9 GB on the volume, dvd-freespace reports 0.4 GB free
+ * - Write 0.2 GB on the volume, Bacula thinks it could still
+ * append data, it creates a new empty part.
+ * - dvd-freespace reports 0 GB free, as the 4GB boundary has
+ * been crossed
+ * - Bacula thinks he must finish to write to the device, so it
+ * tries to write the last part (0-byte), but dvd-writepart fails...
+ *
+ * There is one exception: when recycling a volume, we write a blank part
+ * file, so, then, we need to accept to write it.
+ */
+ if (dev->part_size == 0 && !dev->truncating) {
+ Dmsg2(29, "dvd_write_part: device is %s, won't write blank part %d\n", dev->print_name(), dev->part);
+ /* Delete spool file */
+ make_spooled_dvd_filename(dev, archive_name);
+ unlink(archive_name.c_str());
+ dev->set_part_spooled(false);
+ Dmsg1(29, "========= unlink(%s)\n", archive_name.c_str());
+ sm_check(__FILE__, __LINE__, false);
+ return true;
}
POOL_MEM ocmd(PM_FNAME);
char* icmd;
int status;
int timeout;
- int part;
char ed1[50];
- results.c_str()[0] = 0;
+ dev->clear_freespace_ok(); /* need to update freespace */
+
+ sm_check(__FILE__, __LINE__, false);
+ Dmsg3(29, "dvd_write_part: device is %s, part is %d, is_mounted=%d\n", dev->print_name(), dev->part, dev->is_mounted());
icmd = dev->device->write_part_command;
- /*
- * Note! part is used to control whether or not we create a
- * new filesystem. If the device could be mounted, it is because
- * it already has a filesystem, so we artificially set part=1
- * to avoid zapping an existing filesystem.
- */
- part = dev->part;
- if (dev->is_mounted() && dev->part < 2) {
- dev->part = 2; /* do not wipe out existing filesystem */
- }
- edit_device_codes_dev(dev, ocmd.c_str(), icmd);
- dev->part = part;
+ dev->edit_mount_codes(ocmd, icmd);
/*
- * Wait at most the time a maximum size part is written in DVD 0.5x speed
- * FIXME: Minimum speed should be in device configuration
+ * original line follows
+ * timeout = dev->max_open_wait + (dev->max_part_size/(1350*1024/2));
+ * I modified this for a longer timeout; pre-formatting, blanking and
+ * writing can take quite a while
*/
- timeout = dev->max_open_wait + (dev->max_part_size/(1350*1024/2));
-
- Dmsg2(29, "dvd_write_part: cmd=%s timeout=%d\n", ocmd.c_str(), timeout);
-
- status = run_program_full_output(ocmd.c_str(), timeout, results.c_str());
- Dmsg1(100, "results len=%d\n", strlen(results.c_str()));
+
+ /* Explanation of the timeout value, when writing the first part,
+ * by Arno Lehmann :
+ * 9 GB, write speed 1x: 6990 seconds (almost 2 hours...)
+ * Overhead: 900 seconds (starting, initializing, finalizing,probably
+ * reloading 15 minutes)
+ * Sum: 15780.
+ * A reasonable last-exit timeout would be 16000 seconds. Quite long -
+ * almost 4.5 hours, but hopefully, that timeout will only ever be needed
+ * in case of a serious emergency.
+ */
+
+ if (dev->part == 1) {
+ timeout = 16000;
+ } else {
+ timeout = dev->max_open_wait + (dev->part_size/(1350*1024/4));
+ }
+
+ Dmsg2(20, "Write part: cmd=%s timeout=%d\n", ocmd.c_str(), timeout);
+ status = run_program_full_output(ocmd.c_str(), timeout, results.addr());
+ Dmsg2(20, "Write part status=%d result=%s\n", status, results.c_str());
+
+ dev->blank_dvd = false;
if (status != 0) {
- Mmsg1(dev->errmsg, "Error while writing current part to the DVD: %s",
+ Jmsg2(dcr->jcr, M_FATAL, 0, _("Error writing part %d to the DVD: ERR=%s\n"),
+ dev->part, results.c_str());
+ Mmsg1(dev->errmsg, _("Error while writing current part to the DVD: %s"),
results.c_str());
- Dmsg1(000, "%s", dev->errmsg);
+ Dmsg1(100, "%s\n", dev->errmsg);
dev->dev_errno = EIO;
+ if (!dev->truncating) {
+ dcr->mark_volume_in_error();
+ }
+ sm_check(__FILE__, __LINE__, false);
return false;
}
+ Jmsg(dcr->jcr, M_INFO, 0, _("Part %d (%lld bytes) written to DVD.\n"), dev->part, dev->part_size);
+ Dmsg3(400, "dvd_write_part: Part %d (%lld bytes) written to DVD\nResults: %s\n",
+ dev->part, dev->part_size, results.c_str());
+
+ dev->num_dvd_parts++; /* there is now one more part on DVD */
+ dev->VolCatInfo.VolCatParts = dev->num_dvd_parts;
+ dcr->VolCatInfo.VolCatParts = dev->num_dvd_parts;
+ Dmsg1(100, "Update num_parts=%d\n", dev->num_dvd_parts);
- POOL_MEM archive_name(PM_FNAME);
/* Delete spool file */
make_spooled_dvd_filename(dev, archive_name);
unlink(archive_name.c_str());
- Dmsg1(29, "unlink(%s)\n", archive_name.c_str());
- update_free_space_dev(dev);
+ dev->set_part_spooled(false);
+ Dmsg1(29, "========= unlink(%s)\n", archive_name.c_str());
+ sm_check(__FILE__, __LINE__, false);
+
+ /* growisofs umounted the device, so remount it (it will update the free space) */
+ dev->clear_mounted();
+ dev->mount(1);
Jmsg(dcr->jcr, M_INFO, 0, _("Remaining free space %s on %s\n"),
edit_uint64_with_commas(dev->free_space, ed1), dev->print_name());
- Dmsg1(100, "results=%s\n", results.c_str());
+ sm_check(__FILE__, __LINE__, false);
return true;
}
-/* Open the next part file.
+/*
+ * Open the next part file.
* - Close the fd
* - Increment part number
* - Reopen the device
*/
-int open_next_part(DCR *dcr)
+int dvd_open_next_part(DCR *dcr)
{
DEVICE *dev = dcr->dev;
- Dmsg5(29, "Enter: ==== open_next_part part=%d npart=%d dev=%s vol=%s mode=%d\n",
- dev->part, dev->num_parts, dev->print_name(),
- dev->VolCatInfo.VolCatName, dev->openmode);
+ Dmsg6(29, "Enter: == open_next_part part=%d npart=%d dev=%s vol=%s mode=%d file_addr=%d\n",
+ dev->part, dev->num_dvd_parts, dev->print_name(),
+ dev->getVolCatName(), dev->openmode, dev->file_addr);
if (!dev->is_dvd()) {
- Dmsg1(000, "Device %s is not dvd!!!!\n", dev->print_name());
+ Dmsg1(100, "Device %s is not dvd!!!!\n", dev->print_name());
return -1;
}
-
+
/* When appending, do not open a new part if the current is empty */
- if (dev->can_append() && (dev->part >= dev->num_parts) &&
+ if (dev->can_append() && (dev->part > dev->num_dvd_parts) &&
(dev->part_size == 0)) {
Dmsg0(29, "open_next_part exited immediately (dev->part_size == 0).\n");
- return dev->fd;
- }
-
- if (dev->fd >= 0) {
- close(dev->fd);
+ return dev->fd();
}
-
- dev->fd = -1;
- dev->clear_opened();
+
+ dev->close_part(dcr); /* close current part */
/*
- * If we have a part open for write, then write it to
+ * If we have a spooled part open, write it to the
* DVD before opening the next part.
*/
- if (dev->is_dvd() && (dev->part >= dev->num_parts) && dev->can_append()) {
+ if (dev->is_part_spooled()) {
+ Dmsg2(100, "Before open next write previous. part=%d num_parts=%d\n",
+ dev->part, dev->num_dvd_parts);
if (!dvd_write_part(dcr)) {
+ Dmsg0(29, "Error in dvd_write part.\n");
return -1;
}
}
- if (dev->part > dev->num_parts) {
- Dmsg2(000, "In open_next_part: part=%d nump=%d\n", dev->part, dev->num_parts);
- ASSERT(dev->part <= dev->num_parts);
- }
dev->part_start += dev->part_size;
dev->part++;
-
- Dmsg2(29, "part=%d num_parts=%d\n", dev->part, dev->num_parts);
- /* I think this dev->can_append() should not be there */
- if ((dev->num_parts < dev->part) && dev->can_append()) {
+ Dmsg2(29, "Inc part=%d num_dvd_parts=%d\n", dev->part, dev->num_dvd_parts);
+
+ /* Are we working on a part past what is written in the DVD? */
+ if (dev->num_dvd_parts < dev->part) {
POOL_MEM archive_name(PM_FNAME);
struct stat buf;
/*
- * First check what is on DVD. If out part is there, we
+ * First check what is on DVD. If our part is there, we
* are in trouble, so bail out.
+ * NB: This is however not a problem if we are writing the first part.
+ * It simply means that we are over writing an existing volume...
*/
- make_mounted_dvd_filename(dev, archive_name); /* makes dvd name */
- if (stat(archive_name.c_str(), &buf) == 0) {
- /* bad news bail out */
- Mmsg1(&dev->errmsg, _("Next Volume part already exists on DVD. Cannot continue: %s\n"),
- archive_name.c_str());
- return -1;
+ if (dev->num_dvd_parts > 0) {
+ make_mounted_dvd_filename(dev, archive_name); /* makes dvd name */
+ Dmsg1(100, "Check if part on DVD: %s\n", archive_name.c_str());
+ if (stat(archive_name.c_str(), &buf) == 0) {
+ /* bad news bail out */
+ dev->set_part_spooled(false);
+ Mmsg1(&dev->errmsg, _("Next Volume part already exists on DVD. Cannot continue: %s\n"),
+ archive_name.c_str());
+ return -1;
+ }
}
- dev->num_parts = dev->part;
- dev->VolCatInfo.VolCatParts = dev->part;
+#ifdef neeeded
+ Dmsg2(400, "num_dvd_parts=%d part=%d\n", dev->num_dvd_parts, dev->part);
make_spooled_dvd_filename(dev, archive_name); /* makes spool name */
/* Check if the next part exists in spool directory . */
+ Dmsg1(100, "Check if part on spool: %s\n", archive_name.c_str());
if ((stat(archive_name.c_str(), &buf) == 0) || (errno != ENOENT)) {
- Dmsg1(29, "open_next_part %s is in the way, moving it away...\n", archive_name.c_str());
+ Dmsg1(29, "======= Part %s is in the way, deleting it...\n", archive_name.c_str());
/* Then try to unlink it */
if (unlink(archive_name.c_str()) < 0) {
berrno be;
+ dev->set_part_spooled(false);
dev->dev_errno = errno;
Mmsg2(dev->errmsg, _("open_next_part can't unlink existing part %s, ERR=%s\n"),
- archive_name.c_str(), be.strerror());
+ archive_name.c_str(), be.bstrerror());
return -1;
}
}
+#endif
}
- if (dev->num_parts < dev->part) {
- dev->num_parts = dev->part;
- dev->VolCatInfo.VolCatParts = dev->part;
- }
- Dmsg2(50, "Call dev->open(vol=%s, mode=%d", dev->VolCatInfo.VolCatName,
+
+ Dmsg2(400, "Call dev->open(vol=%s, mode=%d)\n", dcr->getVolCatName(),
dev->openmode);
- /* Open next part */
- if (dev->open(dcr, dev->openmode) < 0) {
+
+ /* Open next part. Note, this sets part_size for part opened. */
+ if (dev->open(dcr, OPEN_READ_ONLY) < 0) {
return -1;
}
- dev->set_labeled(); /* all next parts are "labeled" */
- return dev->fd;
+ dev->set_labeled(); /* all next parts are "labeled" */
+
+ return dev->fd();
}
-/* Open the first part file.
+/*
+ * Open the first part file.
* - Close the fd
* - Reopen the device
- *
- * I don't see why this is necessary unless the current
- * part is not zero.
*/
-int open_first_part(DCR *dcr, int mode)
+static bool dvd_open_first_part(DCR *dcr, int mode)
{
DEVICE *dev = dcr->dev;
- Dmsg3(29, "Enter: ==== open_first_part dev=%s Vol=%s mode=%d\n", dev->dev_name,
- dev->VolCatInfo.VolCatName, dev->openmode);
+ Dmsg5(29, "Enter: ==== open_first_part dev=%s Vol=%s mode=%d num_dvd_parts=%d append=%d\n", dev->print_name(),
+ dev->getVolCatName(), dev->openmode, dev->num_dvd_parts, dev->can_append());
- if (dev->fd >= 0) {
- close(dev->fd);
- }
- dev->fd = -1;
- dev->clear_opened();
-
- dev->part_start = 0;
- dev->part = 1;
-
- Dmsg2(50, "Call dev->open(vol=%s, mode=%d)\n", dcr->VolCatInfo.VolCatName,
+
+ dev->close_part(dcr);
+
+ Dmsg2(400, "Call dev->open(vol=%s, mode=%d)\n", dcr->getVolCatName(),
mode);
+ Dmsg0(100, "Set part=1\n");
+ dev->part = 1;
+ dev->part_start = 0;
+
if (dev->open(dcr, mode) < 0) {
- Dmsg0(50, "open dev() failed\n");
- return -1;
+ Dmsg0(400, "open dev() failed\n");
+ return false;
}
- Dmsg1(50, "Leave open_first_part state=%s\n", dev->is_open()?"open":"not open");
- return dev->fd;
+ Dmsg2(400, "Leave open_first_part state=%s append=%d\n", dev->is_open()?"open":"not open", dev->can_append());
+
+ return true;
}
-/* Protected version of lseek, which opens the right part if necessary */
-off_t lseek_dev(DEVICE *dev, off_t offset, int whence)
+/*
+ * Do an lseek on a DVD handling all the different parts
+ */
+boffset_t lseek_dvd(DCR *dcr, boffset_t offset, int whence)
{
- int openmode;
- DCR *dcr;
- off_t pos;
-
- Dmsg0(100, "Enter lseek_dev\n");
- if (!dev->is_dvd() || dev->num_parts <= 1) { /* If there is only one part, simply call lseek. */
- return lseek(dev->fd, offset, whence);
+ DEVICE *dev;
+ boffset_t pos;
+ char ed1[50], ed2[50];
+
+ if (!dcr) { /* can be NULL when called from rewind(NULL) */
+ return -1;
}
-
- dcr = (DCR *)dev->attached_dcrs->first(); /* any dcr will do */
+ dev = dcr->dev;
+
+ Dmsg5(400, "Enter lseek_dvd fd=%d off=%s w=%d part=%d nparts=%d\n", dev->fd(),
+ edit_int64(offset, ed1), whence, dev->part, dev->num_dvd_parts);
+
switch(whence) {
case SEEK_SET:
- Dmsg1(100, "lseek_dev SEEK_SET to %d\n", (int)offset);
+ Dmsg2(400, "lseek_dvd SEEK_SET to %s (part_start=%s)\n",
+ edit_int64(offset, ed1), edit_uint64(dev->part_start, ed2));
if ((uint64_t)offset >= dev->part_start) {
- if ((uint64_t)(offset - dev->part_start) < dev->part_size) {
+ if ((uint64_t)offset == dev->part_start ||
+ (uint64_t)offset < dev->part_start+dev->part_size) {
/* We are staying in the current part, just seek */
- offset -= dev->part_start; /* adjust for start of this part */
- if ((pos = lseek(dev->fd, offset, SEEK_SET)) < 0) {
- return pos;
+#if defined(HAVE_WIN32)
+ pos = _lseeki64(dev->fd(), offset-dev->part_start, SEEK_SET);
+#else
+ pos = lseek(dev->fd(), offset-dev->part_start, SEEK_SET);
+#endif
+ if (pos < 0) {
+ return pos;
} else {
return pos + dev->part_start;
}
} else {
/* Load next part, and start again */
- if (open_next_part(dcr) < 0) {
- Dmsg0(100, "lseek_dev failed while trying to open the next part\n");
+ Dmsg0(100, "lseek open next part\n");
+ if (dvd_open_next_part(dcr) < 0) {
+ Dmsg0(400, "lseek_dvd failed while trying to open the next part\n");
return -1;
}
- return lseek_dev(dev, offset, SEEK_SET);
+ Dmsg2(100, "Recurse lseek after open next part=%d num_part=%d\n",
+ dev->part, dev->num_dvd_parts);
+ return lseek_dvd(dcr, offset, SEEK_SET);
}
} else {
/*
* so just load the first one, and seek again
* until the right one is loaded
*/
- if (open_first_part(dcr, dev->openmode) < 0) {
- Dmsg0(100, "lseek_dev failed while trying to open the first part\n");
+ Dmsg0(100, "lseek open first part\n");
+ if (!dvd_open_first_part(dcr, dev->openmode)) {
+ Dmsg0(400, "lseek_dvd failed while trying to open the first part\n");
return -1;
}
- return lseek_dev(dev, offset, SEEK_SET);
+ Dmsg2(100, "Recurse lseek after open first part=%d num_part=%d\n",
+ dev->part, dev->num_dvd_parts);
+ return lseek_dvd(dcr, offset, SEEK_SET); /* system lseek */
}
break;
case SEEK_CUR:
- Dmsg1(100, "lseek_dev SEEK_CUR to %d\n", (int)offset);
- if ((pos = lseek(dev->fd, (off_t)0, SEEK_CUR)) < 0) {
- return pos;
+ Dmsg1(400, "lseek_dvd SEEK_CUR to %s\n", edit_int64(offset, ed1));
+ if ((pos = lseek(dev->fd(), 0, SEEK_CUR)) < 0) {
+ Dmsg0(400, "Seek error.\n");
+ return pos;
}
pos += dev->part_start;
if (offset == 0) {
+ Dmsg1(400, "lseek_dvd SEEK_CUR returns %s\n", edit_uint64(pos, ed1));
return pos;
- } else { /* Not used in Bacula, but should work */
- return lseek_dev(dev, pos, SEEK_SET);
+ } else {
+ Dmsg1(400, "do lseek_dvd SEEK_SET %s\n", edit_uint64(pos, ed1));
+ return lseek_dvd(dcr, pos, SEEK_SET);
}
break;
case SEEK_END:
- Dmsg1(100, "lseek_dev SEEK_END to %d\n", (int)offset);
+ Dmsg1(400, "lseek_dvd SEEK_END to %s\n", edit_int64(offset, ed1));
+ /*
+ * Bacula does not use offsets for SEEK_END
+ * Also, Bacula uses seek_end only when it wants to
+ * append to the volume, so for a dvd that means
+ * that the volume must be spooled since the DVD
+ * itself is read-only (as currently implemented).
+ */
if (offset > 0) { /* Not used by bacula */
- Dmsg1(100, "lseek_dev SEEK_END called with an invalid offset %d\n", (int)offset);
+ Dmsg1(400, "lseek_dvd SEEK_END called with an invalid offset %s\n",
+ edit_uint64(offset, ed1));
errno = EINVAL;
return -1;
}
-
- if (dev->part == dev->num_parts) { /* The right part is already loaded */
- if ((pos = lseek(dev->fd, (off_t)0, SEEK_END)) < 0) {
+ /* If we are already on a spooled part and have the
+ * right part number, simply seek
+ */
+ if (dev->is_part_spooled() && dev->part > dev->num_dvd_parts) {
+ if ((pos = lseek(dev->fd(), 0, SEEK_END)) < 0) {
return pos;
} else {
+ Dmsg1(400, "lseek_dvd SEEK_END returns %s\n",
+ edit_uint64(pos + dev->part_start, ed1));
return pos + dev->part_start;
}
} else {
- /* Load the first part, then load the next until we reach the last one.
- * This is the only way to be sure we compute the right file address. */
- /* Save previous openmode, and open all but last part read-only (useful for DVDs) */
- openmode = dev->openmode;
-
- /* Works because num_parts > 0. */
- if (open_first_part(dcr, OPEN_READ_ONLY) < 0) {
- Dmsg0(100, "lseek_dev failed while trying to open the first part\n");
+ /*
+ * Load the first part, then load the next until we reach the last one.
+ * This is the only way to be sure we compute the right file address.
+ *
+ * Save previous openmode, and open all but last part read-only
+ * (useful for DVDs)
+ */
+ int modesave = dev->openmode;
+ if (!dvd_open_first_part(dcr, OPEN_READ_ONLY)) {
+ Dmsg0(400, "lseek_dvd failed while trying to open the first part\n");
return -1;
}
- while (dev->part < (dev->num_parts-1)) {
- if (open_next_part(dcr) < 0) {
- Dmsg0(100, "lseek_dev failed while trying to open the next part\n");
+ if (dev->num_dvd_parts > 0) {
+ while (dev->part < dev->num_dvd_parts) {
+ if (dvd_open_next_part(dcr) < 0) {
+ Dmsg0(400, "lseek_dvd failed while trying to open the next part\n");
+ return -1;
+ }
+ }
+ dev->openmode = modesave;
+ if (dvd_open_next_part(dcr) < 0) {
+ Dmsg0(400, "lseek_dvd failed while trying to open the next part\n");
return -1;
}
}
- dev->openmode = openmode;
- if (open_next_part(dcr) < 0) {
- Dmsg0(100, "lseek_dev failed while trying to open the next part\n");
- return -1;
- }
- return lseek_dev(dev, 0, SEEK_END);
+ return lseek_dvd(dcr, 0, SEEK_END);
}
break;
default:
+ Dmsg0(400, "Seek call error.\n");
errno = EINVAL;
return -1;
}
JCR *jcr = dcr->jcr;
bool ok = true;
- /* If the device is a dvd and WritePartAfterJob
+ /*
+ * If the device is a dvd and WritePartAfterJob
* is set to yes, open the next part, so, in case of a device
* that requires mount, it will be written to the device.
*/
if (dev->is_dvd() && jcr->write_part_after_job && (dev->part_size > 0)) {
- Dmsg1(100, "Writing last part=%d write_partafter_job is set.\n",
+ Dmsg1(400, "Writing last part=%d write_partafter_job is set.\n",
dev->part);
- if (dev->part < dev->num_parts) {
- Jmsg3(jcr, M_FATAL, 0, _("Error while writing, current part number is less than the total number of parts (%d/%d, device=%s)\n"),
- dev->part, dev->num_parts, dev->print_name());
+ if (dev->part < dev->num_dvd_parts+1) {
+ Jmsg3(jcr, M_FATAL, 0, _("Error writing. Current part less than total number of parts (%d/%d, device=%s)\n"),
+ dev->part, dev->num_dvd_parts, dev->print_name());
dev->dev_errno = EIO;
ok = false;
}
- /* This should be !dvd_write_part(dcr) */
-// if (ok && open_next_part(dcr) < 0) {
if (ok && !dvd_write_part(dcr)) {
- Jmsg2(jcr, M_FATAL, 0, _("Unable to write part %s: ERR=%s\n"),
- dev->print_name(), strerror_dev(dev));
+ Jmsg2(jcr, M_FATAL, 0, _("Unable to write last on %s: ERR=%s\n"),
+ dev->print_name(), dev->bstrerror());
dev->dev_errno = EIO;
ok = false;
}
}
- Dmsg1(200, "Set VolCatParts=%d\n", dev->num_parts);
- dev->VolCatInfo.VolCatParts = dev->num_parts;
return ok;
}
+void dvd_remove_empty_part(DCR *dcr)
+{
+ DEVICE *dev = dcr->dev;
+
+ /* Remove the last part file if it is empty */
+ if (dev->is_dvd() && dev->num_dvd_parts > 0) {
+ struct stat statp;
+ uint32_t part_save = dev->part;
+ POOL_MEM archive_name(PM_FNAME);
+ int status;
+
+ dev->part = dev->num_dvd_parts;
+ make_spooled_dvd_filename(dev, archive_name);
+ /* Check that the part file is empty */
+ status = stat(archive_name.c_str(), &statp);
+ if (status == 0 && statp.st_size == 0) {
+ Dmsg3(100, "Unlink empty part in close call make_dvd_filename. part=%d num=%d vol=%s\n",
+ part_save, dev->num_dvd_parts, dev->getVolCatName());
+ Dmsg1(100, "unlink(%s)\n", archive_name.c_str());
+ unlink(archive_name.c_str());
+ if (part_save == dev->part) {
+ dev->set_part_spooled(false); /* no spooled part left */
+ }
+ } else if (status < 0) {
+ if (part_save == dev->part) {
+ dev->set_part_spooled(false); /* spool doesn't exit */
+ }
+ }
+ dev->part = part_save; /* restore part number */
+ }
+}
+
+bool truncate_dvd(DCR *dcr)
+{
+ DEVICE* dev = dcr->dev;
+
+ dev->clear_freespace_ok(); /* need to update freespace */
+ dev->close_part(dcr);
+
+ if (!dev->unmount(1)) {
+ Dmsg0(400, "truncate_dvd: Failed to unmount DVD\n");
+ return false;
+ }
+
+ /* If necessary, delete its spool file. */
+ if (dev->is_part_spooled()) {
+ POOL_MEM archive_name(PM_FNAME);
+ /* Delete spool file */
+ make_spooled_dvd_filename(dev, archive_name);
+ unlink(archive_name.c_str());
+ dev->set_part_spooled(false);
+ }
+
+ /* Set num_dvd_parts to zero (on disk) */
+ dev->part = 0;
+ dev->num_dvd_parts = 0;
+ dcr->VolCatInfo.VolCatParts = 0;
+ dev->VolCatInfo.VolCatParts = 0;
+
+ Dmsg0(400, "truncate_dvd: Opening first part (1)...\n");
+
+ dev->truncating = true;
+ /* This creates a zero length spool file and sets part=1 */
+ if (!dvd_open_first_part(dcr, CREATE_READ_WRITE)) {
+ Dmsg0(400, "truncate_dvd: Error while opening first part (1).\n");
+ dev->truncating = false;
+ return false;
+ }
+
+ dev->close_part(dcr);
+
+ Dmsg0(400, "truncate_dvd: Opening first part (2)...\n");
+
+ /*
+ * Now actually truncate the DVD which is done by writing
+ * a zero length part to the DVD/
+ */
+ if (!dvd_write_part(dcr)) {
+ Dmsg0(400, "truncate_dvd: Error while writing to DVD.\n");
+ dev->truncating = false;
+ return false;
+ }
+ dev->truncating = false;
+
+ /* Set num_dvd_parts to zero (on disk) */
+ dev->part = 0;
+ dev->num_dvd_parts = 0;
+ dcr->VolCatInfo.VolCatParts = 0;
+ dev->VolCatInfo.VolCatParts = 0;
+ /* Clear the size of the volume */
+ dev->VolCatInfo.VolCatBytes = 0;
+ dcr->VolCatInfo.VolCatBytes = 0;
+
+ /* Update catalog */
+ if (!dir_update_volume_info(dcr, false, true)) {
+ return false;
+ }
+
+ return true;
+}
/*
- * Edit codes into (Un)MountCommand, Write(First)PartCommand
- * %% = %
- * %a = archive device name
- * %m = mount point
- * %v = last part name
- *
- * omsg = edited output message
- * imsg = input string containing edit codes (%x)
+ * Checks if we can write on a non-blank DVD: meaning that it just have been
+ * truncated (there is only one zero-sized file on the DVD).
+ *
+ * Note! Normally if we can mount the device, which should be the case
+ * when we get here, it is not a blank DVD. Hence we check if
+ * if all files are of zero length (i.e. no data), in which case we allow it.
*
*/
-static char *edit_device_codes_dev(DEVICE* dev, char *omsg, const char *imsg)
+bool check_can_write_on_non_blank_dvd(DCR *dcr)
{
- const char *p;
- const char *str;
- char add[20];
+ DEVICE* dev = dcr->dev;
+ DIR* dp;
+ struct dirent *entry, *result;
+ int name_max;
+ struct stat filestat;
+ bool ok = true;
+
+ name_max = pathconf(".", _PC_NAME_MAX);
+ if (name_max < 1024) {
+ name_max = 1024;
+ }
- POOL_MEM archive_name(PM_FNAME);
+ if (!(dp = opendir(dev->device->mount_point))) {
+ berrno be;
+ dev->dev_errno = errno;
+ Dmsg3(29, "check_can_write_on_non_blank_dvd: failed to open dir %s (dev=%s), ERR=%s\n",
+ dev->device->mount_point, dev->print_name(), be.bstrerror());
+ return false;
+ }
+
+ entry = (struct dirent *)malloc(sizeof(struct dirent) + name_max + 1000);
+ for ( ;; ) {
+ if ((readdir_r(dp, entry, &result) != 0) || (result == NULL)) {
+ dev->dev_errno = EIO;
+ Dmsg2(129, "check_can_write_on_non_blank_dvd: no more files in dir %s (dev=%s)\n",
+ dev->device->mount_point, dev->print_name());
+ break;
+ } else {
+ Dmsg2(99, "check_can_write_on_non_blank_dvd: found %s (versus %s)\n",
+ result->d_name, dev->getVolCatName());
+ if (strcmp(result->d_name, ".") && strcmp(result->d_name, "..") &&
+ strcmp(result->d_name, ".keep")) {
+ /* Found a file, checking it is empty */
+ POOL_MEM filename(PM_FNAME);
+ pm_strcpy(filename, dev->device->mount_point);
+ if (!IsPathSeparator(filename.c_str()[strlen(filename.c_str())-1])) {
+ pm_strcat(filename, "/");
+ }
+ pm_strcat(filename, result->d_name);
+ if (stat(filename.c_str(), &filestat) < 0) {
+ berrno be;
+ dev->dev_errno = errno;
+ Dmsg2(29, "check_can_write_on_non_blank_dvd: cannot stat file (file=%s), ERR=%s\n",
+ filename.c_str(), be.bstrerror());
+ ok = false;
+ break;
+ }
+ Dmsg2(99, "check_can_write_on_non_blank_dvd: size of %s is %lld\n",
+ filename.c_str(), filestat.st_size);
+ if (filestat.st_size != 0) {
+ ok = false;
+ break;
+ }
+ }
+ }
+ }
+ free(entry);
+ closedir(dp);
+
+ Dmsg1(29, "OK can_write_on_non_blank_dvd: OK=%d\n", ok);
+ return ok;
+}
- *omsg = 0;
- Dmsg1(800, "edit_device_codes: %s\n", imsg);
- for (p=imsg; *p; p++) {
- if (*p == '%') {
- switch (*++p) {
- case '%':
- str = "%";
- break;
- case 'n':
- bsnprintf(add, sizeof(add), "%d", dev->part);
- str = add;
- break;
- case 'a':
- str = dev->dev_name;
- break;
- case 'm':
- str = dev->device->mount_point;
- break;
- case 'v':
- make_spooled_dvd_filename(dev, archive_name);
- str = archive_name.c_str();
- break;
- default:
- add[0] = '%';
- add[1] = *p;
- add[2] = 0;
- str = add;
+/*
+ * Mount a DVD device, then scan to find out how many parts
+ * there are.
+ */
+int find_num_dvd_parts(DCR *dcr)
+{
+ DEVICE *dev = dcr->dev;
+ int num_parts = 0;
+
+ if (!dev->is_dvd()) {
+ return 0;
+ }
+
+ if (dev->mount(1)) {
+ DIR* dp;
+ struct dirent *entry, *result;
+ int name_max;
+ int len = strlen(dcr->getVolCatName());
+
+ /* Now count the number of parts */
+ name_max = pathconf(".", _PC_NAME_MAX);
+ if (name_max < 1024) {
+ name_max = 1024;
+ }
+
+ if (!(dp = opendir(dev->device->mount_point))) {
+ berrno be;
+ dev->dev_errno = errno;
+ Dmsg3(29, "find_num_dvd_parts: failed to open dir %s (dev=%s), ERR=%s\n",
+ dev->device->mount_point, dev->print_name(), be.bstrerror());
+ goto get_out;
+ }
+
+ entry = (struct dirent *)malloc(sizeof(struct dirent) + name_max + 1000);
+
+ Dmsg1(100, "Looking for Vol=%s\n", dcr->getVolCatName());
+ for ( ;; ) {
+ int flen;
+ bool ignore;
+ if ((readdir_r(dp, entry, &result) != 0) || (result == NULL)) {
+ dev->dev_errno = EIO;
+ Dmsg2(129, "find_num_dvd_parts: failed to find suitable file in dir %s (dev=%s)\n",
+ dev->device->mount_point, dev->print_name());
break;
}
- } else {
- add[0] = *p;
- add[1] = 0;
- str = add;
+ flen = strlen(result->d_name);
+ ignore = true;
+ if (flen >= len) {
+ result->d_name[len] = 0;
+ if (strcmp(dcr->getVolCatName(), result->d_name) == 0) {
+ num_parts++;
+ Dmsg1(100, "find_num_dvd_parts: found part: %s\n", result->d_name);
+ ignore = false;
+ }
+ }
+ if (ignore) {
+ Dmsg2(129, "find_num_dvd_parts: ignoring %s in %s\n",
+ result->d_name, dev->device->mount_point);
+ }
}
- Dmsg1(1900, "add_str %s\n", str);
- pm_strcat(&omsg, (char *)str);
- Dmsg1(1800, "omsg=%s\n", omsg);
+ free(entry);
+ closedir(dp);
+ Dmsg1(29, "find_num_dvd_parts = %d\n", num_parts);
+ }
+
+get_out:
+ dev->set_freespace_ok();
+ if (dev->is_mounted()) {
+ dev->unmount(0);
}
- return omsg;
+ return num_parts;
}
projects / bacula / bacula / blobdiff