* subcommands that are handled
* in job.c.
*
+ * N.B. in this file, in general we must use P(dev->mutex) rather
+ * than lock_device(dev) so that we can examine the blocked
+ * state rather than blocking ourselves. In some "safe" cases,
+ * we can do things to a blocked device. CAREFUL!!!!
+ *
* File daemon commands are handled in fdcmd.c
*
* Kern Sibbald, May MMI
*
*/
/*
- Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
+ Copyright (C) 2000-2004 Kern Sibbald and John Walker
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
/* Imported functions */
extern void terminate_child();
extern int job_cmd(JCR *jcr);
+extern int status_cmd(JCR *sjcr);
/* Forward referenced functions */
static int label_cmd(JCR *jcr);
+static int relabel_cmd(JCR *jcr);
+static int readlabel_cmd(JCR *jcr);
+static int release_cmd(JCR *jcr);
static int setdebug_cmd(JCR *jcr);
static int cancel_cmd(JCR *cjcr);
static int mount_cmd(JCR *jcr);
static int unmount_cmd(JCR *jcr);
-static int status_cmd(JCR *sjcr);
-static void label_volume_if_ok(JCR *jcr, DEVICE *dev, char *vname, char *poolname);
+static int autochanger_cmd(JCR *sjcr);
+static int do_label(JCR *jcr, int relabel);
+static bool find_device(JCR *jcr, char *dname);
+static void read_volume_label(JCR *jcr, DEVICE *dev, int Slot);
+static void label_volume_if_ok(JCR *jcr, DEVICE *dev, char *oldname,
+ char *newname, char *poolname,
+ int Slot, int relabel);
struct s_cmds {
char *cmd;
{"setdebug=", setdebug_cmd}, /* set debug level */
{"cancel", cancel_cmd},
{"label", label_cmd}, /* label a tape */
+ {"relabel", relabel_cmd}, /* relabel a tape */
{"mount", mount_cmd},
{"unmount", unmount_cmd},
{"status", status_cmd},
+ {"autochanger", autochanger_cmd},
+ {"release", release_cmd},
+ {"readlabel", readlabel_cmd},
{NULL, NULL} /* list terminator */
};
/*
* Connection request. We accept connections either from the
- * Director or a Client.
+ * Director or a Client (File daemon).
*
* Note, we are running as a seperate thread of the Storage daemon.
* and it is because a Director has made a connection with
*
* Basic tasks done here:
* - Create a JCR record
+ * - If it was from the FD, call handle_filed_connection()
* - Authenticate the Director
* - We wait for a command
* - We execute the command
* - We continue or exit depending on the return status
*/
-void connection_request(void *arg)
+void *connection_request(void *arg)
{
BSOCK *bs = (BSOCK *)arg;
JCR *jcr;
- int i, found, quit;
- int bnet_stat;
+ int i;
+ bool found, quit;
+ int bnet_stat = 0;
char name[MAX_NAME_LENGTH];
if (bnet_recv(bs) <= 0) {
- Emsg0(M_ERROR, 0, "Connection request failed.\n");
- return;
+ Emsg0(M_ERROR, 0, _("Connection request failed.\n"));
+ bnet_close(bs);
+ return NULL;
}
/*
- * See if this is a File daemon connection
+ * Do a sanity check on the message received
+ */
+ if (bs->msglen < 25 || bs->msglen > (int)sizeof(name)-25) {
+ Emsg1(M_ERROR, 0, _("Invalid Dir connection. Len=%d\n"), bs->msglen);
+ bnet_close(bs);
+ return NULL;
+ }
+ /*
+ * See if this is a File daemon connection. If so
+ * call FD handler.
*/
- if (sscanf(bs->msg, "Hello Start Job %127s calling\n", name) == 1) {
+ Dmsg1(110, "Conn: %s", bs->msg);
+ if (sscanf(bs->msg, "Hello Start Job %127s", name) == 1) {
handle_filed_connection(bs, name);
- return;
+ return NULL;
}
+ Dmsg0(110, "Start Dir Job\n");
jcr = new_jcr(sizeof(JCR), stored_free_jcr); /* create Job Control Record */
jcr->dir_bsock = bs; /* save Director bsock */
+ jcr->dir_bsock->jcr = jcr;
+ /* Initialize FD start condition variable */
+ int errstat = pthread_cond_init(&jcr->job_start_wait, NULL);
+ if (errstat != 0) {
+ Jmsg1(jcr, M_FATAL, 0, _("Unable to init job cond variable: ERR=%s\n"), strerror(errstat));
+ free_jcr(jcr);
+ return NULL;
+ }
Dmsg0(1000, "stored in start_job\n");
if (!authenticate_director(jcr)) {
Jmsg(jcr, M_FATAL, 0, _("Unable to authenticate Director\n"));
free_jcr(jcr);
- return;
+ return NULL;
}
Dmsg0(90, "Message channel init completed.\n");
for (quit=0; !quit;) {
-
/* Read command */
if ((bnet_stat = bnet_recv(bs)) <= 0) {
break; /* connection terminated */
}
Dmsg1(9, "<dird: %s\n", bs->msg);
- found = FALSE;
+ found = false;
for (i=0; cmds[i].cmd; i++) {
if (strncmp(cmds[i].cmd, bs->msg, strlen(cmds[i].cmd)) == 0) {
if (!cmds[i].func(jcr)) { /* do command */
- quit = TRUE; /* error, get out */
+ quit = true; /* error, get out */
Dmsg1(90, "Command %s requsts quit\n", cmds[i].cmd);
}
- found = TRUE; /* indicate command found */
+ found = true; /* indicate command found */
break;
}
}
if (!found) { /* command not found */
bnet_fsend(bs, derrmsg);
- quit = TRUE;
+ quit = true;
break;
}
}
- if (bnet_stat != BNET_TERMINATE) {
- bnet_sig(bs, BNET_TERMINATE);
- }
+ bnet_sig(bs, BNET_TERMINATE);
free_jcr(jcr);
- return;
+ return NULL;
}
/*
static int setdebug_cmd(JCR *jcr)
{
BSOCK *dir = jcr->dir_bsock;
- int level;
+ int level, trace_flag;
Dmsg1(10, "setdebug_cmd: %s", dir->msg);
- if (sscanf(dir->msg, "setdebug=%d", &level) != 1 || level < 0) {
+ if (sscanf(dir->msg, "setdebug=%d trace=%d", &level, &trace_flag) != 2 || level < 0) {
bnet_fsend(dir, "3991 Bad setdebug command: %s\n", dir->msg);
return 0;
}
debug_level = level;
+ set_trace(trace_flag);
return bnet_fsend(dir, OKsetdebug, level);
}
} else {
P(jcr->mutex);
oldStatus = jcr->JobStatus;
- jcr->JobStatus = JS_Cancelled;
- if (!jcr->authenticated && jcr->JobStatus == JS_WaitFD) {
+ set_jcr_job_status(jcr, JS_Canceled);
+ if (!jcr->authenticated && oldStatus == JS_WaitFD) {
pthread_cond_signal(&jcr->job_start_wait); /* wake waiting thread */
}
V(jcr->mutex);
if (jcr->file_bsock) {
bnet_sig(jcr->file_bsock, BNET_TERMINATE);
}
- bnet_fsend(dir, _("3000 Job %s Status=%c marked to be cancelled.\n"),
- jcr->Job, oldStatus);
+ /* If thread waiting on mount, wake him */
+ if (jcr->device && jcr->device->dev &&
+ (jcr->device->dev->dev_blocked == BST_WAITING_FOR_SYSOP ||
+ jcr->device->dev->dev_blocked == BST_UNMOUNTED ||
+ jcr->device->dev->dev_blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP)) {
+ pthread_cond_signal(&jcr->device->dev->wait_next_vol);
+ }
+ bnet_fsend(dir, _("3000 Job %s marked to be canceled.\n"), jcr->Job);
free_jcr(jcr);
}
} else {
bnet_fsend(dir, _("3993 Error scanning cancel command.\n"));
}
- bnet_sig(dir, BNET_EOF);
+ bnet_sig(dir, BNET_EOD);
return 1;
}
*/
static int label_cmd(JCR *jcr)
{
- char *dname, *volname, *poolname, *mtype;
+ return do_label(jcr, 0);
+}
+
+static int relabel_cmd(JCR *jcr)
+{
+ return do_label(jcr, 1);
+}
+
+static int do_label(JCR *jcr, int relabel)
+{
+ POOLMEM *dname, *newname, *oldname, *poolname, *mtype;
BSOCK *dir = jcr->dir_bsock;
- DEVRES *device;
DEVICE *dev;
- int found = 0;
-
- dname = (char *) get_memory(dir->msglen+1);
- volname = (char *) get_memory(dir->msglen+1);
- poolname = (char *) get_memory(dir->msglen+1);
- mtype = (char *) get_memory(dir->msglen+1);
- if (sscanf(dir->msg, "label %s VolumeName=%s PoolName=%s MediaType=%s",
- dname, volname, poolname, mtype) == 4) {
- unbash_spaces(dname);
- unbash_spaces(volname);
+ bool ok = false;
+ int slot;
+
+ dname = get_memory(dir->msglen+1);
+ newname = get_memory(dir->msglen+1);
+ oldname = get_memory(dir->msglen+1);
+ poolname = get_memory(dir->msglen+1);
+ mtype = get_memory(dir->msglen+1);
+ if (relabel) {
+ if (sscanf(dir->msg, "relabel %s OldName=%s NewName=%s PoolName=%s MediaType=%s Slot=%d",
+ dname, oldname, newname, poolname, mtype, &slot) == 6) {
+ ok = true;
+ }
+ } else {
+ *oldname = 0;
+ if (sscanf(dir->msg, "label %s VolumeName=%s PoolName=%s MediaType=%s Slot=%d",
+ dname, newname, poolname, mtype, &slot) == 5) {
+ ok = true;
+ }
+ }
+ if (ok) {
+ unbash_spaces(newname);
+ unbash_spaces(oldname);
unbash_spaces(poolname);
unbash_spaces(mtype);
- device = NULL;
- LockRes();
- while ((device=(DEVRES *)GetNextRes(R_DEVICE, (RES *)device))) {
- /* Find resource, and make sure we were able to open it */
- if (strcmp(device->hdr.name, dname) == 0 && device->dev) {
- Dmsg1(20, "Found device %s\n", device->hdr.name);
- found = 1;
- break;
- }
- }
- UnlockRes();
- if (found) {
+ if (find_device(jcr, dname)) {
/******FIXME**** compare MediaTypes */
- jcr->device = device;
- dev = device->dev;
- P(dev->mutex);
+ dev = jcr->device->dev;
+
+ P(dev->mutex); /* Use P to avoid indefinite block */
if (!(dev->state & ST_OPENED)) {
- if (open_dev(dev, volname, READ_WRITE) < 0) {
- bnet_fsend(dir, _("3994 Connot open device: %s\n"), strerror_dev(dev));
- } else {
- label_volume_if_ok(jcr, dev, volname, poolname);
- force_close_dev(dev);
- }
+ label_volume_if_ok(jcr, dev, oldname, newname, poolname, slot, relabel);
+ force_close_dev(dev);
+ /* Under certain "safe" conditions, we can steal the lock */
} else if (dev->dev_blocked &&
- dev->dev_blocked != BST_DOING_ACQUIRE) { /* device blocked? */
- label_volume_if_ok(jcr, dev, volname, poolname);
- } else if (dev->state & ST_READ || dev->num_writers) {
- if (dev->state & ST_READ) {
- bnet_fsend(dir, _("3901 Device %s is busy with 1 reader.\n"),
+ (dev->dev_blocked == BST_UNMOUNTED ||
+ dev->dev_blocked == BST_WAITING_FOR_SYSOP ||
+ dev->dev_blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP)) {
+ label_volume_if_ok(jcr, dev, oldname, newname, poolname, slot, relabel);
+ } else if (dev_state(dev, ST_READ) || dev->num_writers) {
+ if (dev_state(dev, ST_READ)) {
+ bnet_fsend(dir, _("3911 Device %s is busy with 1 reader.\n"),
dev_name(dev));
} else {
- bnet_fsend(dir, _("3902 Device %s is busy with %d writer(s).\n"),
+ bnet_fsend(dir, _("3912 Device %s is busy with %d writer(s).\n"),
dev_name(dev), dev->num_writers);
}
} else { /* device not being used */
- label_volume_if_ok(jcr, dev, volname, poolname);
+ label_volume_if_ok(jcr, dev, oldname, newname, poolname, slot, relabel);
}
V(dev->mutex);
} else {
}
} else {
/* NB dir->msg gets clobbered in bnet_fsend, so save command */
- strcpy(dname, dir->msg);
- bnet_fsend(dir, _("3903 Error scanning label command: %s\n"), dname);
+ pm_strcpy(&jcr->errmsg, dir->msg);
+ bnet_fsend(dir, _("3903 Error scanning label command: %s\n"), jcr->errmsg);
}
free_memory(dname);
- free_memory(volname);
+ free_memory(oldname);
+ free_memory(newname);
free_memory(poolname);
free_memory(mtype);
- bnet_sig(dir, BNET_EOF);
+ bnet_sig(dir, BNET_EOD);
return 1;
}
*
* Enter with the mutex set
*/
-static void label_volume_if_ok(JCR *jcr, DEVICE *dev, char *vname, char *poolname)
+static void label_volume_if_ok(JCR *jcr, DEVICE *dev, char *oldname,
+ char *newname, char *poolname,
+ int slot, int relabel)
{
BSOCK *dir = jcr->dir_bsock;
DEV_BLOCK *block;
- int blocked;
- pthread_t no_wait_id;
+ bsteal_lock_t hold;
- blocked = dev->dev_blocked; /* save any prev blocked state */
- no_wait_id = dev->no_wait_id;
- dev->dev_blocked = BST_WRITING_LABEL;
- dev->no_wait_id = pthread_self(); /* let us use the tape */
- V(dev->mutex); /* release lock */
-
- strcpy(jcr->VolumeName, vname);
+ steal_device_lock(dev, &hold, BST_WRITING_LABEL);
block = new_block(dev);
+
+ pm_strcpy(&jcr->VolumeName, newname);
+ jcr->VolCatInfo.Slot = slot;
+ if (autoload_device(jcr, dev, 0, dir) < 0) { /* autoload if possible */
+ goto bail_out;
+ }
+
+ /* Ensure that the device is open -- autoload_device() closes it */
+ for ( ; !(dev->state & ST_OPENED); ) {
+ if (open_dev(dev, jcr->VolumeName, OPEN_READ_WRITE) < 0) {
+ bnet_fsend(dir, _("3910 Unable to open device %s. ERR=%s\n"),
+ dev_name(dev), strerror_dev(dev));
+ goto bail_out;
+ }
+ }
+
+ /* See what we have for a Volume */
switch (read_dev_volume_label(jcr, dev, block)) {
- case VOL_NAME_ERROR:
- case VOL_VERSION_ERROR:
- case VOL_LABEL_ERROR:
- case VOL_OK:
- bnet_fsend(dir, _("3901 Cannot label Volume because it is \
-already labeled: %s\n"), dev->VolHdr.VolName);
+ case VOL_NAME_ERROR:
+ case VOL_VERSION_ERROR:
+ case VOL_LABEL_ERROR:
+ case VOL_OK:
+ if (!relabel) {
+ bnet_fsend(dir, _(
+ "3911 Cannot label Volume because it is already labeled: \"%s\"\n"),
+ dev->VolHdr.VolName);
break;
- case VOL_IO_ERROR:
- case VOL_NO_LABEL:
- write_volume_label_to_dev(jcr, jcr->device, vname, poolname);
- strcpy(jcr->VolumeName, vname);
- bnet_fsend(dir, _("3000 OK label. Volume=%s Device=%s\n"),
- vname, dev->dev_name);
+ }
+ /* Relabel request. If oldname matches, continue */
+ if (strcmp(oldname, dev->VolHdr.VolName) != 0) {
+ bnet_fsend(dir, _("Wrong volume mounted.\n"));
break;
- default:
- bnet_fsend(dir, _("3902 Cannot label Volume. \
-Unknown status %d from read_volume_label()\n"), jcr->label_status);
+ }
+ /* Fall through wanted! */
+ case VOL_IO_ERROR:
+ case VOL_NO_LABEL:
+ if (!write_volume_label_to_dev(jcr, jcr->device, newname, poolname)) {
+ bnet_fsend(dir, _("3912 Failed to label Volume: ERR=%s\n"), strerror_dev(dev));
break;
+ }
+ pm_strcpy(&jcr->VolumeName, newname);
+ bnet_fsend(dir, _("3000 OK label. Volume=%s Device=%s\n"),
+ newname, dev_name(dev));
+ break;
+ case VOL_NO_MEDIA:
+ bnet_fsend(dir, _("3912 Failed to label Volume: ERR=%s\n"), strerror_dev(dev));
+ break;
+ default:
+ bnet_fsend(dir, _("3913 Cannot label Volume. \
+Unknown status %d from read_volume_label()\n"), jcr->label_status);
+ break;
}
+bail_out:
free_block(block);
- P(dev->mutex);
- dev->dev_blocked = blocked; /* reset blocked state */
- dev->no_wait_id = no_wait_id; /* reset blocking thread id */
+ give_back_device_lock(dev, &hold);
+
+ return;
}
*/
static int read_label(JCR *jcr, DEVICE *dev)
{
+ int stat;
BSOCK *dir = jcr->dir_bsock;
DEV_BLOCK *block;
- int blocked;
- pthread_t no_wait_id;
- int stat;
+ bsteal_lock_t hold;
- blocked = dev->dev_blocked; /* save any prev blocked state */
- no_wait_id = dev->no_wait_id;
- dev->dev_blocked = BST_DOING_ACQUIRE;
- dev->no_wait_id = pthread_self(); /* let us use the tape */
- V(dev->mutex); /* release lock */
+ steal_device_lock(dev, &hold, BST_DOING_ACQUIRE);
jcr->VolumeName[0] = 0;
block = new_block(dev);
dev->state &= ~ST_LABEL; /* force read of label */
switch (read_dev_volume_label(jcr, dev, block)) {
- case VOL_OK:
- bnet_fsend(dir, _("3001 Mounted Volume: %s\n"), dev->VolHdr.VolName);
- stat = 1;
- break;
- default:
- bnet_fsend(dir, _("3902 Cannot mount Volume on Storage Device \"%s\" because:\n%s\n"),
- dev->dev_name, jcr->errmsg);
- stat = 0;
- break;
+ case VOL_OK:
+ bnet_fsend(dir, _("3001 Mounted Volume: %s\n"), dev->VolHdr.VolName);
+ stat = 1;
+ break;
+ default:
+ bnet_fsend(dir, _("3902 Cannot mount Volume on Storage Device \"%s\" because:\n%s"),
+ dev_name(dev), jcr->errmsg);
+ stat = 0;
+ break;
}
free_block(block);
- P(dev->mutex);
- dev->dev_blocked = blocked; /* reset blocked state */
- dev->no_wait_id = no_wait_id; /* reset blocking thread id */
+ give_back_device_lock(dev, &hold);
return stat;
}
+static bool find_device(JCR *jcr, char *dname)
+{
+ DEVRES *device = NULL;
+ bool found = false;
+
+ unbash_spaces(dname);
+ LockRes();
+ while ((device=(DEVRES *)GetNextRes(R_DEVICE, (RES *)device))) {
+ /* Find resource, and make sure we were able to open it */
+ if (strcmp(device->hdr.name, dname) == 0 && device->dev) {
+ Dmsg1(20, "Found device %s\n", device->hdr.name);
+ jcr->device = device;
+ found = true;
+ break;
+ }
+ }
+ if (found) {
+ jcr->dcr = new_dcr(jcr, device->dev);
+ }
+ UnlockRes();
+ return found;
+}
+
+
/*
* Mount command from Director
*/
static int mount_cmd(JCR *jcr)
{
- char *dev_name;
+ POOLMEM *dname;
BSOCK *dir = jcr->dir_bsock;
- DEVRES *device;
DEVICE *dev;
- int found = 0;
-
- dev_name = (char *) get_memory(dir->msglen);
- if (sscanf(dir->msg, "mount %s", dev_name) == 1) {
- unbash_spaces(dev_name);
- device = NULL;
- LockRes();
- while ((device=(DEVRES *)GetNextRes(R_DEVICE, (RES *)device))) {
- /* Find resource, and make sure we were able to open it */
- if (strcmp(device->hdr.name, dev_name) == 0 && device->dev) {
- Dmsg1(20, "Found device %s\n", device->hdr.name);
- found = 1;
- break;
- }
- }
- UnlockRes();
- if (found) {
- jcr->device = device;
- dev = device->dev;
- P(dev->mutex);
+
+ dname = get_memory(dir->msglen+1);
+ if (sscanf(dir->msg, "mount %s", dname) == 1) {
+ if (find_device(jcr, dname)) {
+ DEV_BLOCK *block;
+ dev = jcr->device->dev;
+ P(dev->mutex); /* Use P to avoid indefinite block */
switch (dev->dev_blocked) { /* device blocked? */
- DEV_BLOCK *block;
- case BST_WAITING_FOR_SYSOP:
- /* Someone is waiting, wake him */
- Dmsg0(90, "Waiting for mount attempt to wake thread\n");
- pthread_cond_signal(&dev->wait_next_vol);
- bnet_fsend(dir, "3001 OK mount. Device=%s\n", dev->dev_name);
+ case BST_WAITING_FOR_SYSOP:
+ /* Someone is waiting, wake him */
+ Dmsg0(100, "Waiting for mount. Attempting to wake thread\n");
+ dev->dev_blocked = BST_MOUNT;
+ bnet_fsend(dir, "3001 OK mount. Device=%s\n", dev_name(dev));
+ pthread_cond_signal(&dev->wait_next_vol);
+ break;
+
+ /* In both of these two cases, we (the user) unmounted the Volume */
+ case BST_UNMOUNTED_WAITING_FOR_SYSOP:
+ case BST_UNMOUNTED:
+ /* We freed the device, so reopen it and wake any waiting threads */
+ if (open_dev(dev, NULL, OPEN_READ_WRITE) < 0) {
+ bnet_fsend(dir, _("3901 open device failed: ERR=%s\n"),
+ strerror_dev(dev));
break;
+ }
+ block = new_block(dev);
+ read_dev_volume_label(jcr, dev, block);
+ free_block(block);
+ if (dev->dev_blocked == BST_UNMOUNTED) {
+ /* We blocked the device, so unblock it */
+ Dmsg0(100, "Unmounted. Unblocking device\n");
+ read_label(jcr, dev); /* this should not be necessary */
+ unblock_device(dev);
+ } else {
+ Dmsg0(100, "Unmounted waiting for mount. Attempting to wake thread\n");
+ dev->dev_blocked = BST_MOUNT;
+ }
+ if (dev_state(dev, ST_LABEL)) {
+ bnet_fsend(dir, _("3001 Device %s is mounted with Volume \"%s\"\n"),
+ dev_name(dev), dev->VolHdr.VolName);
+ } else {
+ bnet_fsend(dir, _("3905 Device %s open but no Bacula volume is mounted.\n"
+ "If this is not a blank tape, try unmounting and remounting the Volume.\n"),
+ dev_name(dev));
+ }
+ pthread_cond_signal(&dev->wait_next_vol);
+ break;
- case BST_UNMOUNTED_WAITING_FOR_SYSOP:
- case BST_UNMOUNTED:
- /* We freed the device, so reopen it and wake any waiting threads */
- if (open_dev(dev, NULL, READ_WRITE) < 0) {
+ case BST_DOING_ACQUIRE:
+ bnet_fsend(dir, _("3001 Device %s is mounted; doing acquire.\n"),
+ dev_name(dev));
+ break;
+
+ case BST_WRITING_LABEL:
+ bnet_fsend(dir, _("3903 Device %s is being labeled.\n"), dev_name(dev));
+ break;
+
+ case BST_NOT_BLOCKED:
+ if (dev_state(dev, ST_OPENED)) {
+ if (dev_state(dev, ST_LABEL)) {
+ bnet_fsend(dir, _("3001 Device %s is mounted with Volume \"%s\"\n"),
+ dev_name(dev), dev->VolHdr.VolName);
+ } else {
+ bnet_fsend(dir, _("3905 Device %s open but no Bacula volume is mounted.\n"
+ "If this is not a blank tape, try unmounting and remounting the Volume.\n"),
+ dev_name(dev));
+ }
+ } else {
+ if (!dev_is_tape(dev)) {
+ bnet_fsend(dir, _("3906 cannot mount non-tape.\n"));
+ break;
+ }
+ if (open_dev(dev, NULL, OPEN_READ_WRITE) < 0) {
bnet_fsend(dir, _("3901 open device failed: ERR=%s\n"),
strerror_dev(dev));
break;
}
- block = new_block(dev);
- read_dev_volume_label(jcr, dev, block);
- free_block(block);
- if (dev->dev_blocked == BST_UNMOUNTED) {
- Dmsg0(90, "Unmounted unblocking device\n");
- read_label(jcr, dev);
- unblock_device(dev);
- } else {
- Dmsg0(90, "Unmounted waiting for mount attempt to wake thread\n");
- dev->dev_blocked = BST_WAITING_FOR_SYSOP;
- pthread_cond_signal(&dev->wait_next_vol);
- }
- if (dev->state & ST_LABEL) {
- bnet_fsend(dir, _("3001 Device %s is mounted with Volume %s\n"),
- dev->dev_name, dev->VolHdr.VolName);
- } else {
- bnet_fsend(dir, _("3905 Device %s open but no Bacula volume is mounted.\n"),
- dev->dev_name);
- }
- break;
-
- case BST_DOING_ACQUIRE:
- bnet_fsend(dir, _("3001 Device %s is mounted; doing acquire.\n"),
- dev->dev_name);
- break;
-
- case BST_WRITING_LABEL:
- bnet_fsend(dir, _("3903 Device %s is being labeled.\n"), dev->dev_name);
- break;
-
- case BST_NOT_BLOCKED:
- if (dev->state & ST_OPENED) {
- if (dev->state & ST_LABEL) {
- bnet_fsend(dir, _("3001 Device %s is mounted with Volume %s\n"),
- dev->dev_name, dev->VolHdr.VolName);
- } else {
- bnet_fsend(dir, _("3905 Device %s open but no Bacula volume is mounted.\n"),
- dev->dev_name);
- }
+ read_label(jcr, dev);
+ if (dev_state(dev, ST_LABEL)) {
+ bnet_fsend(dir, _("3001 Device %s is already mounted with Volume \"%s\"\n"),
+ dev_name(dev), dev->VolHdr.VolName);
} else {
- if (!dev_is_tape(dev)) {
- bnet_fsend(dir, _("3906 cannot mount non-tape.\n"));
- break;
- }
- if (open_dev(dev, NULL, READ_WRITE) < 0) {
- bnet_fsend(dir, _("3901 open device failed: ERR=%s\n"),
- strerror_dev(dev));
- break;
- }
- read_label(jcr, dev);
- if (dev->state & ST_LABEL) {
- bnet_fsend(dir, _("3001 Device %s is mounted with Volume %s\n"),
- dev->dev_name, dev->VolHdr.VolName);
- } else {
- bnet_fsend(dir, _("3905 Device %s open but no Bacula volume is mounted.\n"),
- dev->dev_name);
- }
+ bnet_fsend(dir, _("3905 Device %s open but no Bacula volume is mounted.\n"
+ "If this is not a blank tape, try unmounting and remounting the Volume.\n"),
+ dev_name(dev));
}
- break;
+ }
+ break;
- default:
- bnet_fsend(dir, _("3905 Bizarre wait state %d\n"), dev->dev_blocked);
- break;
+ default:
+ bnet_fsend(dir, _("3905 Bizarre wait state %d\n"), dev->dev_blocked);
+ break;
}
V(dev->mutex);
} else {
- bnet_fsend(dir, _("3999 Device %s not found\n"), dev_name);
+ bnet_fsend(dir, _("3999 Device %s not found\n"), dname);
}
} else {
- strcpy(dev_name, dir->msg);
- bnet_fsend(dir, _("3906 Error scanning mount command: %s\n"), dev_name);
+ pm_strcpy(&jcr->errmsg, dir->msg);
+ bnet_fsend(dir, _("3909 Error scanning mount command: %s\n"), jcr->errmsg);
}
- free_memory(dev_name);
- bnet_sig(dir, BNET_EOF);
+ free_memory(dname);
+ bnet_sig(dir, BNET_EOD);
return 1;
}
*/
static int unmount_cmd(JCR *jcr)
{
- char *dname;
+ POOLMEM *dname;
BSOCK *dir = jcr->dir_bsock;
- DEVRES *device;
DEVICE *dev;
- int found = 0;
- dname = (char *) get_memory(dir->msglen+1);
+ dname = get_memory(dir->msglen+1);
if (sscanf(dir->msg, "unmount %s", dname) == 1) {
- unbash_spaces(dname);
- device = NULL;
- LockRes();
- while ((device=(DEVRES *)GetNextRes(R_DEVICE, (RES *)device))) {
- /* Find resource, and make sure we were able to open it */
- if (strcmp(device->hdr.name, dname) == 0 && device->dev) {
- Dmsg1(20, "Found device %s\n", device->hdr.name);
- found = 1;
- break;
- }
- }
- UnlockRes();
- if (found) {
- jcr->device = device;
- dev = device->dev;
- P(dev->mutex);
+ if (find_device(jcr, dname)) {
+ dev = jcr->device->dev;
+ P(dev->mutex); /* Use P to avoid indefinite block */
if (!(dev->state & ST_OPENED)) {
Dmsg0(90, "Device already unmounted\n");
- bnet_fsend(dir, _("3901 Device %s is already unmounted.\n"), dev_name(dev));
+ bnet_fsend(dir, _("3901 Device \"%s\" is already unmounted.\n"), dev_name(dev));
} else if (dev->dev_blocked == BST_WAITING_FOR_SYSOP) {
Dmsg2(90, "%d waiter dev_block=%d. doing unmount\n", dev->num_waiting,
dev->dev_blocked);
- if (dev->capabilities & CAP_OFFLINEUNMOUNT) {
- offline_dev(dev);
- }
+ open_dev(dev, NULL, 0); /* fake open for close */
+ offline_or_rewind_dev(dev);
force_close_dev(dev);
dev->dev_blocked = BST_UNMOUNTED_WAITING_FOR_SYSOP;
- bnet_fsend(dir, _("3001 Device %s unmounted.\n"), dev_name(dev));
+ bnet_fsend(dir, _("3001 Device \"%s\" unmounted.\n"), dev_name(dev));
} else if (dev->dev_blocked == BST_DOING_ACQUIRE) {
- bnet_fsend(dir, _("3902 Device %s is busy in acquire.\n"),
- dev_name(dev));
+ bnet_fsend(dir, _("3902 Device \"%s\" is busy in acquire.\n"), dev_name(dev));
} else if (dev->dev_blocked == BST_WRITING_LABEL) {
- bnet_fsend(dir, _("3903 Device %s is being labeled.\n"),
- dev_name(dev));
+ bnet_fsend(dir, _("3903 Device \"%s\" is being labeled.\n"), dev_name(dev));
- } else if (dev->state & ST_READ || dev->num_writers) {
- if (dev->state & ST_READ) {
+ } else if (dev_state(dev, ST_READ) || dev->num_writers) {
+ if (dev_state(dev, ST_READ)) {
Dmsg0(90, "Device in read mode\n");
- bnet_fsend(dir, _("3904 Device %s is busy with 1 reader.\n"),
- dev_name(dev));
+ bnet_fsend(dir, _("3904 Device \"%s\" is busy reading.\n"), dev_name(dev));
} else {
Dmsg1(90, "Device busy with %d writers\n", dev->num_writers);
bnet_fsend(dir, _("3905 Device %s is busy with %d writer(s).\n"),
} else { /* device not being used */
Dmsg0(90, "Device not in use, unmounting\n");
- block_device(dev, BST_UNMOUNTED);
- if (dev->capabilities & CAP_OFFLINEUNMOUNT) {
- offline_dev(dev);
- }
+ /* On FreeBSD, I am having ASSERT() failures in block_device()
+ * and I can only imagine that the thread id that we are
+ * leaving in no_wait_id is being re-used. So here,
+ * we simply do it by hand. Gross, but a solution.
+ */
+ /* block_device(dev, BST_UNMOUNTED); replace with 2 lines below */
+ dev->dev_blocked = BST_UNMOUNTED;
+ dev->no_wait_id = 0;
+ open_dev(dev, NULL, 0); /* fake open for close */
+ offline_or_rewind_dev(dev);
force_close_dev(dev);
bnet_fsend(dir, _("3002 Device %s unmounted.\n"), dev_name(dev));
}
}
} else {
/* NB dir->msg gets clobbered in bnet_fsend, so save command */
- strcpy(dname, dir->msg);
- bnet_fsend(dir, _("3907 Error scanning unmount command: %s\n"), dname);
+ pm_strcpy(&jcr->errmsg, dir->msg);
+ bnet_fsend(dir, _("3907 Error scanning unmount command: %s\n"), jcr->errmsg);
}
free_memory(dname);
- bnet_sig(dir, BNET_EOF);
+ bnet_sig(dir, BNET_EOD);
return 1;
}
/*
- * Status command from Director
+ * Release command from Director. This rewinds the device and if
+ * configured does a offline and ensures that Bacula will
+ * re-read the label of the tape before continuing. This gives
+ * the operator the chance to change the tape anytime before the
+ * next job starts.
*/
-static int status_cmd(JCR *jcr)
+static int release_cmd(JCR *jcr)
{
- DEVRES *device;
+ POOLMEM *dname;
+ BSOCK *dir = jcr->dir_bsock;
DEVICE *dev;
- int found, bps, sec, bpb;
- BSOCK *user = jcr->dir_bsock;
- char dt[MAX_TIME_LENGTH];
- char b1[30], b2[30], b3[30];
-
- bnet_fsend(user, "\n%s Version: " VERSION " (" DATE ")\n", my_name);
- bstrftime(dt, sizeof(dt), daemon_start_time);
- bnet_fsend(user, _("Daemon started %s, %d Job%s run.\n"), dt, last_job.NumJobs,
- last_job.NumJobs == 1 ? "" : "s");
- if (last_job.NumJobs > 0) {
- char termstat[30];
-
- bstrftime(dt, sizeof(dt), last_job.end_time);
- bnet_fsend(user, _("Last Job %s finished at %s\n"), last_job.Job, dt);
-
- jobstatus_to_ascii(last_job.JobStatus, termstat, sizeof(termstat));
- bnet_fsend(user, _(" Files=%s Bytes=%s Termination Status=%s\n"),
- edit_uint64_with_commas(last_job.JobFiles, b1),
- edit_uint64_with_commas(last_job.JobBytes, b2),
- termstat);
- }
- LockRes();
- for (device=NULL; (device=(DEVRES *)GetNextRes(R_DEVICE, (RES *)device)); ) {
- dev = device->dev;
- if (dev) {
- if (dev->state & ST_OPENED) {
- if (dev->state & ST_LABEL) {
- bnet_fsend(user, _("Device %s is mounted with Volume %s\n"),
- dev_name(dev), dev->VolHdr.VolName);
+ dname = get_memory(dir->msglen+1);
+ if (sscanf(dir->msg, "release %s", dname) == 1) {
+ if (find_device(jcr, dname)) {
+ dev = jcr->device->dev;
+ P(dev->mutex); /* Use P to avoid indefinite block */
+ if (!(dev->state & ST_OPENED)) {
+ Dmsg0(90, "Device already released\n");
+ bnet_fsend(dir, _("3911 Device %s already released.\n"), dev_name(dev));
+
+ } else if (dev->dev_blocked == BST_WAITING_FOR_SYSOP ||
+ dev->dev_blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP) {
+ Dmsg2(90, "%d waiter dev_block=%d. doing unmount\n", dev->num_waiting,
+ dev->dev_blocked);
+ bnet_fsend(dir, _("3912 Device %s waiting for mount.\n"), dev_name(dev));
+
+ } else if (dev->dev_blocked == BST_DOING_ACQUIRE) {
+ bnet_fsend(dir, _("3913 Device %s is busy in acquire.\n"), dev_name(dev));
+
+ } else if (dev->dev_blocked == BST_WRITING_LABEL) {
+ bnet_fsend(dir, _("3914 Device %s is being labeled.\n"), dev_name(dev));
+
+ } else if (dev_state(dev, ST_READ) || dev->num_writers) {
+ if (dev_state(dev, ST_READ)) {
+ Dmsg0(90, "Device in read mode\n");
+ bnet_fsend(dir, _("3915 Device %s is busy with 1 reader.\n"), dev_name(dev));
} else {
- bnet_fsend(user, _("Device %s open but no Bacula volume is mounted.\n"), dev_name(dev));
- }
- switch (dev->dev_blocked) {
- case BST_UNMOUNTED:
- bnet_fsend(user, _(" Deviced is blocked. User unmounted.\n"));
- break;
- case BST_UNMOUNTED_WAITING_FOR_SYSOP:
- bnet_fsend(user, _(" Deviced is blocked. User unmounted during wait for media/mount.\n"));
- break;
- case BST_WAITING_FOR_SYSOP:
- if (jcr->JobStatus == JS_WaitMount) {
- bnet_fsend(user, _(" Device is blocked waiting for mount.\n"));
- } else {
- bnet_fsend(user, _(" Device is blocked waiting for appendable media.\n"));
- }
- break;
- case BST_DOING_ACQUIRE:
- bnet_fsend(user, _(" Device is being initialized.\n"));
- break;
- case BST_WRITING_LABEL:
- bnet_fsend(user, _(" Device is blocked labeling a Volume.\n"));
- break;
- default:
- break;
- }
- bpb = dev->VolCatInfo.VolCatBlocks;
- if (bpb <= 0) {
- bpb = 1;
+ Dmsg1(90, "Device busy with %d writers\n", dev->num_writers);
+ bnet_fsend(dir, _("3916 Device %s is busy with %d writer(s).\n"),
+ dev_name(dev), dev->num_writers);
}
- bpb = dev->VolCatInfo.VolCatBytes / bpb;
- bnet_fsend(user, _(" Total Bytes=%s Blocks=%s Bytes/block=%s\n"),
- edit_uint64_with_commas(dev->VolCatInfo.VolCatBytes, b1),
- edit_uint64_with_commas(dev->VolCatInfo.VolCatBlocks, b2),
- edit_uint64_with_commas(bpb, b3));
- bnet_fsend(user, _(" Positioned at File=%s Block=%s\n"),
- edit_uint64_with_commas(dev->file, b1),
- edit_uint64_with_commas(dev->block_num, b2));
-
- } else {
- bnet_fsend(user, _("Device %s is not open.\n"), dev_name(dev));
+
+ } else { /* device not being used */
+ Dmsg0(90, "Device not in use, unmounting\n");
+ release_volume(jcr, dev);
+ bnet_fsend(dir, _("3012 Device %s released.\n"), dev_name(dev));
}
+ V(dev->mutex);
+ } else {
+ bnet_fsend(dir, _("3999 Device %s not found\n"), dname);
}
+ } else {
+ /* NB dir->msg gets clobbered in bnet_fsend, so save command */
+ pm_strcpy(&jcr->errmsg, dir->msg);
+ bnet_fsend(dir, _("3917 Error scanning release command: %s\n"), jcr->errmsg);
}
- UnlockRes();
+ free_memory(dname);
+ bnet_sig(dir, BNET_EOD);
+ return 1;
+}
- found = 0;
- lock_jcr_chain();
- /* NOTE, we reuse a calling argument jcr. Be warned! */
- for (jcr=NULL; (jcr=get_next_jcr(jcr)); ) {
- if (jcr->JobStatus == JS_WaitFD) {
- bnet_fsend(user, _("Job %s is waiting for the Client connection.\n"),
- jcr->Job);
- }
- if (jcr->device) {
- bnet_fsend(user, _("Job %s is using device %s\n"),
- jcr->Job, jcr->device->device_name);
- sec = time(NULL) - jcr->run_time;
- if (sec <= 0) {
- sec = 1;
+
+
+/*
+ * Autochanger command from Director
+ */
+static int autochanger_cmd(JCR *jcr)
+{
+ POOLMEM *dname;
+ BSOCK *dir = jcr->dir_bsock;
+ DEVICE *dev;
+
+ dname = get_memory(dir->msglen+1);
+ if (sscanf(dir->msg, "autochanger list %s ", dname) == 1) {
+ if (find_device(jcr, dname)) {
+ dev = jcr->device->dev;
+ P(dev->mutex); /* Use P to avoid indefinite block */
+ if (!dev_is_tape(dev)) {
+ bnet_fsend(dir, _("3995 Device %s is not an autochanger.\n"), dev_name(dev));
+ } else if (!(dev->state & ST_OPENED)) {
+ autochanger_list(jcr, dev, dir);
+ /* Under certain "safe" conditions, we can steal the lock */
+ } else if (dev->dev_blocked &&
+ (dev->dev_blocked == BST_UNMOUNTED ||
+ dev->dev_blocked == BST_WAITING_FOR_SYSOP ||
+ dev->dev_blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP)) {
+ autochanger_list(jcr, dev, dir);
+ } else if (dev_state(dev, ST_READ) || dev->num_writers) {
+ if (dev_state(dev, ST_READ)) {
+ bnet_fsend(dir, _("3901 Device %s is busy with 1 reader.\n"), dev_name(dev));
+ } else {
+ bnet_fsend(dir, _("3902 Device %s is busy with %d writer(s).\n"),
+ dev_name(dev), dev->num_writers);
+ }
+ } else { /* device not being used */
+ autochanger_list(jcr, dev, dir);
}
- bps = jcr->JobBytes / sec;
- bnet_fsend(user, _(" Files=%s Bytes=%s Bytes/sec=%s\n"),
- edit_uint64_with_commas(jcr->JobFiles, b1),
- edit_uint64_with_commas(jcr->JobBytes, b2),
- edit_uint64_with_commas(bps, b3));
- found = 1;
-#ifdef DEBUG
- if (jcr->file_bsock) {
- bnet_fsend(user, " FDReadSeqNo=%" lld " fd=%d\n",
- jcr->file_bsock->read_seqno, jcr->file_bsock->fd);
- } else {
- bnet_fsend(user, " FDSocket closed\n");
+ V(dev->mutex);
+ } else {
+ bnet_fsend(dir, _("3999 Device %s not found\n"), dname);
+ }
+ } else { /* error on scanf */
+ pm_strcpy(&jcr->errmsg, dir->msg);
+ bnet_fsend(dir, _("3908 Error scanning autocharger list command: %s\n"),
+ jcr->errmsg);
+ }
+ free_memory(dname);
+ bnet_sig(dir, BNET_EOD);
+ return 1;
+}
+
+/*
+ * Read and return the Volume label
+ */
+static int readlabel_cmd(JCR *jcr)
+{
+ POOLMEM *dname;
+ BSOCK *dir = jcr->dir_bsock;
+ DEVICE *dev;
+ int Slot;
+
+ dname = get_memory(dir->msglen+1);
+ if (sscanf(dir->msg, "readlabel %s Slot=%d", dname, &Slot) == 2) {
+ if (find_device(jcr, dname)) {
+ dev = jcr->device->dev;
+
+ P(dev->mutex); /* Use P to avoid indefinite block */
+ if (!dev_state(dev, ST_OPENED)) {
+ read_volume_label(jcr, dev, Slot);
+ force_close_dev(dev);
+ /* Under certain "safe" conditions, we can steal the lock */
+ } else if (dev->dev_blocked &&
+ (dev->dev_blocked == BST_UNMOUNTED ||
+ dev->dev_blocked == BST_WAITING_FOR_SYSOP ||
+ dev->dev_blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP)) {
+ read_volume_label(jcr, dev, Slot);
+ } else if (dev_state(dev, ST_READ) || dev->num_writers) {
+ if (dev_state(dev, ST_READ)) {
+ bnet_fsend(dir, _("3911 Device %s is busy with 1 reader.\n"),
+ dev_name(dev));
+ } else {
+ bnet_fsend(dir, _("3912 Device %s is busy with %d writer(s).\n"),
+ dev_name(dev), dev->num_writers);
+ }
+ } else { /* device not being used */
+ read_volume_label(jcr, dev, Slot);
}
-#endif
+ V(dev->mutex);
+ } else {
+ bnet_fsend(dir, _("3999 Device %s not found\n"), dname);
}
- free_locked_jcr(jcr);
+ } else {
+ pm_strcpy(&jcr->errmsg, dir->msg);
+ bnet_fsend(dir, _("3909 Error scanning readlabel command: %s\n"), jcr->errmsg);
+ }
+ free_memory(dname);
+ bnet_sig(dir, BNET_EOD);
+ return 1;
+}
+
+/*
+ * Read the tape label
+ *
+ * Enter with the mutex set
+ */
+static void read_volume_label(JCR *jcr, DEVICE *dev, int Slot)
+{
+ BSOCK *dir = jcr->dir_bsock;
+ DEV_BLOCK *block;
+ bsteal_lock_t hold;
+
+ steal_device_lock(dev, &hold, BST_WRITING_LABEL);
+ block = new_block(dev);
+
+ jcr->VolumeName[0] = 0;
+ jcr->VolCatInfo.Slot = Slot;
+ if (autoload_device(jcr, dev, 0, dir) < 0) { /* autoload if possible */
+ goto bail_out;
}
- unlock_jcr_chain();
- if (!found) {
- bnet_fsend(user, _("No jobs running.\n"));
+
+ /* Ensure that the device is open -- autoload_device() closes it */
+ for ( ; !dev_state(dev, ST_OPENED); ) {
+ if (open_dev(dev, jcr->VolumeName, OPEN_READ_WRITE) < 0) {
+ bnet_fsend(dir, _("3910 Unable to open device \"%s\". ERR=%s\n"),
+ dev_name(dev), strerror_dev(dev));
+ goto bail_out;
+ }
}
-#ifdef full_status
- bnet_fsend(user, "\n\n");
- dump_resource(R_DEVICE, resources[R_DEVICE-r_first].res_head, sendit, user);
-#endif
- bnet_fsend(user, "====\n");
+ dev->state &= ~ST_LABEL; /* force read of label */
+ switch (read_dev_volume_label(jcr, dev, block)) {
+ case VOL_OK:
+ /* DO NOT add quotes around the Volume name. It is scanned in the DIR */
+ bnet_fsend(dir, _("3001 Volume=%s Slot=%d\n"), dev->VolHdr.VolName, Slot);
+ Dmsg1(100, "Volume: %s\n", dev->VolHdr.VolName);
+ break;
+ default:
+ bnet_fsend(dir, _("3902 Cannot mount Volume on Storage Device \"%s\" because:\n%s"),
+ dev_name(dev), jcr->errmsg);
+ break;
+ }
- bnet_sig(user, BNET_EOF);
- return 1;
+bail_out:
+ free_block(block);
+ give_back_device_lock(dev, &hold);
+ return;
}
projects / bacula / bacula / blobdiff