/*
* (Un)mount the device (for tape devices)
*/
static bool do_mount(DCR *dcr, int mount, int dotimeout)
{
DEVRES *device = dcr->dev->device;
POOL_MEM ocmd(PM_FNAME);
POOLMEM *results;
char *icmd;
int status, tries;
berrno be;
Dsm_check(200);
if (mount) {
icmd = device->mount_command;
} else {
icmd = device->unmount_command;
}
dcr->dev->edit_mount_codes(ocmd, icmd);
Dmsg2(100, "do_mount: cmd=%s mounted=%d\n", ocmd.c_str(), dcr->dev->is_mounted());
if (dotimeout) {
/* Try at most 10 times to (un)mount the device. This should perhaps be configurable. */
tries = 10;
} else {
tries = 1;
}
results = get_memory(4000);
/* If busy retry each second */
Dmsg1(100, "do_mount run_prog=%s\n", ocmd.c_str());
while ((status = run_program_full_output(ocmd.c_str(), dcr->dev->max_open_wait / 2, results)) != 0) {
if (tries-- > 0) {
continue;
}
Dmsg5(100, "Device %s cannot be %smounted. stat=%d result=%s ERR=%s\n", dcr->dev->print_name(),
(mount ? "" : "un"), status, results, be.bstrerror(status));
Mmsg(dcr->dev->errmsg, _("Device %s cannot be %smounted. ERR=%s\n"),
dcr->dev->print_name(), (mount ? "" : "un"), be.bstrerror(status));
free_pool_memory(results);
Dmsg0(200, "============ mount=0\n");
Dsm_check(200);
return false;
}
free_pool_memory(results);
Dmsg1(200, "============ mount=%d\n", mount);
return true;
}
/* Update the free space on the device */
bool DEVICE::update_freespace()
{
POOL_MEM ocmd(PM_FNAME);
POOLMEM* results;
char* icmd;
int timeout;
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);
Dsm_check(400);
icmd = device->free_space_command;
if (!icmd) {
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_mount_codes(ocmd, icmd);
Dmsg1(29, "update_freespace: cmd=%s\n", ocmd.c_str());
results = get_pool_memory(PM_MESSAGE);
/* Try at most 3 times to get the free space on the device. This should perhaps be configurable. */
timeout = 3;
while (1) {
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) {
free_space = free;
free_space_errno = 0;
set_freespace_ok(); /* have valid freespace */
set_media();
Mmsg(errmsg, "");
ok = true;
break;
}
}
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", print_name(),
edit_uint64(free_space, ed1), free_space_errno,
errmsg);
bmicrosleep(1, 0);
continue;
}
dev_errno = free_space_errno;
Dmsg4(40, "Cannot get free space on device %s. free_space=%s, "
"free_space_errno=%d ERR=%s\n",
print_name(), edit_uint64(free_space, ed1),
free_space_errno, errmsg);
break;
}
free_pool_memory(results);
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());
Dsm_check(400);
return ok;
}
/*
* 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.
*/
bool dvd_write_part(DCR *dcr)
{
DEVICE *dev = dcr->dev;
POOL_MEM archive_name(PM_FNAME);
/*
* 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());
Dsm_check(400);
return true;
}
POOL_MEM ocmd(PM_FNAME);
POOL_MEM results(PM_MESSAGE);
char* icmd;
int status;
int timeout;
char ed1[50];
dev->clear_freespace_ok(); /* need to update freespace */
Dsm_check(400);
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;
dev->edit_mount_codes(ocmd, icmd);
/*
* 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
*/
/* 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) {
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(100, "%s\n", dev->errmsg);
dev->dev_errno = EIO;
if (!dev->truncating) {
dcr->mark_volume_in_error();
}
Dsm_check(400);
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);
/* 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());
Dsm_check(400);
/* 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());
Dsm_check(400);
return true;
}
/*
* (Un)mount the device (For a FILE device)
*/
static bool do_mount(DCR *dcr, bool mount, int dotimeout)
{
DEVRES *device = dcr->dev->device;
POOL_MEM ocmd(PM_FNAME);
POOLMEM *results;
DIR* dp;
char *icmd;
struct dirent *entry, *result;
int status, tries, name_max, count;
berrno be;
Dsm_check(200);
if (mount) {
icmd = device->mount_command;
} else {
icmd = device->unmount_command;
}
dcr->dev->edit_mount_codes(ocmd, icmd);
Dmsg2(100, "do_mount: cmd=%s mounted=%d\n", ocmd.c_str(), dcr->dev->is_mounted());
if (dotimeout) {
/* Try at most 10 times to (un)mount the device. This should perhaps be configurable. */
tries = 10;
} else {
tries = 1;
}
results = get_memory(4000);
/* If busy retry each second */
Dmsg1(100, "do_mount run_prog=%s\n", ocmd.c_str());
while ((status = run_program_full_output(ocmd.c_str(), dcr->dev->max_open_wait / 2, results)) != 0) {
/* Doesn't work with internationalization (This is not a problem) */
if (mount && fnmatch("*is already mounted on*", results, 0) == 0) {
break;
}
if (!mount && fnmatch("* not mounted*", results, 0) == 0) {
break;
}
if (tries-- > 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", dcr->dev->print_name());
do_mount(dcr, 0, 0);
}
bmicrosleep(1, 0);
continue;
}
Dmsg5(100, "Device %s cannot be %smounted. status=%d result=%s ERR=%s\n", dcr->dev->print_name(),
(mount ? "" : "un"), status, results, be.bstrerror(status));
Mmsg(dcr->dev->errmsg, _("Device %s cannot be %smounted. ERR=%s\n"),
dcr->dev->print_name(), (mount ? "" : "un"), be.bstrerror(status));
/*
* Now, just to be sure it is not mounted, try to read the filesystem.
*/
name_max = pathconf(".", _PC_NAME_MAX);
if (name_max < 1024) {
name_max = 1024;
}
if (!(dp = opendir(device->mount_point))) {
berrno be;
dcr->dev->dev_errno = errno;
Dmsg3(100, "do_mount: failed to open dir %s (dev=%s), ERR=%s\n",
device->mount_point, dcr->dev->print_name(), be.bstrerror());
goto get_out;
}
entry = (struct dirent *)malloc(sizeof(struct dirent) + name_max + 1000);
count = 0;
while (1) {
if ((readdir_r(dp, entry, &result) != 0) || (result == NULL)) {
dcr->dev->dev_errno = EIO;
Dmsg2(129, "do_mount: failed to find suitable file in dir %s (dev=%s)\n",
device->mount_point, dcr->dev->print_name());
break;
}
if (!bstrcmp(result->d_name, ".") && !bstrcmp(result->d_name, "..") && !bstrcmp(result->d_name, ".keep")) {
count++; /* result->d_name != ., .. or .keep (Gentoo-specific) */
break;
} else {
Dmsg2(129, "do_mount: ignoring %s in %s\n", result->d_name, device->mount_point);
}
}
free(entry);
closedir(dp);
Dmsg1(100, "do_mount: got %d files in the mount point (not counting ., .. and .keep)\n", count);
if (count > 0) {
/* If we got more than ., .. and .keep */
/* there must be something mounted */
if (mount) {
Dmsg1(100, "Did Mount by count=%d\n", count);
break;
} else {
/* An unmount request. We failed to unmount - report an error */
free_pool_memory(results);
Dmsg0(200, "== error mount=1 wanted unmount\n");
return false;
}
}
get_out:
free_pool_memory(results);
Dmsg0(200, "============ mount=0\n");
Dsm_check(200);
return false;
}
free_pool_memory(results);
Dmsg1(200, "============ mount=%d\n", mount);
return true;
}
/* Update the free space on the device */
bool DEVICE::update_freespace()
{
POOL_MEM ocmd(PM_FNAME);
POOLMEM* results;
char* icmd;
char* p;
uint64_t free, total;
char ed1[50];
bool ok = false;
int status;
berrno be;
if (!is_file()) {
Mmsg(errmsg, "");
return true;
}
/* The device must be mounted in order for freespace to work */
if (requires_mount()) {
mount(1);
}
if (get_os_device_freespace()) {
Dmsg4(20, "get_os_device_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());
return true;
}
icmd = device->free_space_command;
if (!icmd) {
set_freespace(0, 0, 0, false);
Dmsg2(20, "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_mount_codes(ocmd, icmd);
Dmsg1(20, "update_freespace: cmd=%s\n", ocmd.c_str());
results = get_pool_memory(PM_MESSAGE);
Dmsg1(20, "Run freespace prog=%s\n", ocmd.c_str());
status = run_program_full_output(ocmd.c_str(), max_open_wait/2, results);
Dmsg2(20, "Freespace status=%d result=%s\n", status, results);
/* Should report "1223232 12323232\n" "free total\n" */
if (status == 0) {
free = str_to_int64(results) * 1024;
p = results;
if (skip_nonspaces(&p)) {
total = str_to_int64(p) * 1024;
} else {
total = 0;
}
Dmsg1(400, "Free space program run: Freespace=%s\n", results);
if (free >= 0) {
set_freespace(free, total, 0, true); /* have valid freespace */
Mmsg(errmsg, "");
ok = true;
}
} else {
set_freespace(0, 0, EPIPE, false); /* no valid freespace */
Mmsg2(errmsg, _("Cannot run free space command. Results=%s ERR=%s\n"),
results, be.bstrerror(status));
dev_errno = free_space_errno;
Dmsg4(20, "Cannot get free space on device %s. free_space=%s, "
"free_space_errno=%d ERR=%s\n",
print_name(), edit_uint64(free_space, ed1),
free_space_errno, errmsg);
}
free_pool_memory(results);
Dmsg4(20, "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());
return ok;
}