2 Bacula® - The Network Backup Solution
4 Copyright (C) 2001-2008 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version two of the GNU General Public
10 License as published by the Free Software Foundation and included
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of Kern Sibbald.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
29 * This file handles accepting Director Commands
31 * Most Director commands are handled here, with the
32 * exception of the Job command command and subsequent
33 * subcommands that are handled
36 * N.B. in this file, in general we must use P(dev->mutex) rather
37 * than dev->r_lock() so that we can examine the blocked
38 * state rather than blocking ourselves because a Job
39 * thread has the device blocked. In some "safe" cases,
40 * we can do things to a blocked device. CAREFUL!!!!
42 * File daemon commands are handled in fdcmd.c
44 * Kern Sibbald, May MMI
53 /* Exported variables */
55 /* Imported variables */
56 extern BSOCK *filed_chan;
57 extern struct s_last_job last_job;
58 extern bool init_done;
60 /* Static variables */
61 static char derrmsg[] = "3900 Invalid command\n";
62 static char OKsetdebug[] = "3000 OK setdebug=%d\n";
63 static char invalid_cmd[] = "3997 Invalid command for a Director with Monitor directive enabled.\n";
64 static char OK_bootstrap[] = "3000 OK bootstrap\n";
65 static char ERROR_bootstrap[] = "3904 Error bootstrap\n";
67 /* Imported functions */
68 extern void terminate_child();
69 extern bool job_cmd(JCR *jcr);
70 extern bool use_cmd(JCR *jcr);
71 extern bool run_cmd(JCR *jcr);
72 extern bool status_cmd(JCR *sjcr);
73 extern bool qstatus_cmd(JCR *jcr);
74 //extern bool query_cmd(JCR *jcr);
76 /* Forward referenced functions */
77 static bool label_cmd(JCR *jcr);
78 static bool die_cmd(JCR *jcr);
79 static bool relabel_cmd(JCR *jcr);
80 static bool readlabel_cmd(JCR *jcr);
81 static bool release_cmd(JCR *jcr);
82 static bool setdebug_cmd(JCR *jcr);
83 static bool cancel_cmd(JCR *cjcr);
84 static bool mount_cmd(JCR *jcr);
85 static bool unmount_cmd(JCR *jcr);
86 static bool action_on_purge_cmd(JCR *jcr);
87 static bool bootstrap_cmd(JCR *jcr);
88 static bool changer_cmd(JCR *sjcr);
89 static bool do_label(JCR *jcr, int relabel);
90 static DCR *find_device(JCR *jcr, POOL_MEM &dev_name, int drive);
91 static void read_volume_label(JCR *jcr, DCR *dcr, DEVICE *dev, int Slot);
92 static void label_volume_if_ok(DCR *dcr, char *oldname,
93 char *newname, char *poolname,
94 int Slot, int relabel);
95 static bool try_autoload_device(JCR *jcr, DCR *dcr, int slot, const char *VolName);
96 static void send_dir_busy_message(BSOCK *dir, DEVICE *dev);
100 bool (*func)(JCR *jcr);
101 bool monitoraccess; /* set if monitors can access this cmd */
105 * The following are the recognized commands from the Director.
107 static struct s_cmds cmds[] = {
108 {"JobId=", job_cmd, 0}, /* start Job */
109 {"autochanger", changer_cmd, 0},
110 {"bootstrap", bootstrap_cmd, 0},
111 {"cancel", cancel_cmd, 0},
112 {".die", die_cmd, 0},
113 {"label", label_cmd, 0}, /* label a tape */
114 {"mount", mount_cmd, 0},
115 {"readlabel", readlabel_cmd, 0},
116 {"release", release_cmd, 0},
117 {"relabel", relabel_cmd, 0}, /* relabel a tape */
118 {"setdebug=", setdebug_cmd, 0}, /* set debug level */
119 {"status", status_cmd, 1},
120 {".status", qstatus_cmd, 1},
121 {"unmount", unmount_cmd, 0},
122 {"action_on_purge", action_on_purge_cmd, 0},
123 {"use storage=", use_cmd, 0},
125 // {"query", query_cmd, 0},
126 {NULL, NULL} /* list terminator */
131 * Connection request. We accept connections either from the
132 * Director or a Client (File daemon).
134 * Note, we are running as a seperate thread of the Storage daemon.
135 * and it is because a Director has made a connection with
136 * us on the "Message" channel.
138 * Basic tasks done here:
139 * - Create a JCR record
140 * - If it was from the FD, call handle_filed_connection()
141 * - Authenticate the Director
142 * - We wait for a command
143 * - We execute the command
144 * - We continue or exit depending on the return status
146 void *handle_connection_request(void *arg)
148 BSOCK *bs = (BSOCK *)arg;
156 if (bs->recv() <= 0) {
157 Emsg1(M_ERROR, 0, _("Connection request from %s failed.\n"), bs->who());
163 * Do a sanity check on the message received
165 if (bs->msglen < 25 || bs->msglen > (int)sizeof(name)) {
166 Dmsg1(000, "<filed: %s", bs->msg);
167 Emsg2(M_ERROR, 0, _("Invalid connection from %s. Len=%d\n"), bs->who(), bs->msglen);
172 * See if this is a File daemon connection. If so
175 Dmsg1(110, "Conn: %s", bs->msg);
176 if (debug_level == 3) {
177 Dmsg1(000, "<filed: %s", bs->msg);
179 if (sscanf(bs->msg, "Hello Start Job %127s", name) == 1) {
180 Dmsg1(110, "Got a FD connection at %s\n", bstrftimes(tbuf, sizeof(tbuf),
181 (utime_t)time(NULL)));
182 Dmsg1(50, "%s", bs->msg);
183 handle_filed_connection(bs, name);
188 * This is a connection from the Director, so setup a JCR
190 Dmsg1(110, "Got a DIR connection at %s\n", bstrftimes(tbuf, sizeof(tbuf),
191 (utime_t)time(NULL)));
192 jcr = new_jcr(sizeof(JCR), stored_free_jcr); /* create Job Control Record */
193 jcr->dir_bsock = bs; /* save Director bsock */
194 jcr->dir_bsock->set_jcr(jcr);
195 jcr->dcrs = New(alist(10, not_owned_by_alist));
196 /* Initialize FD start condition variable */
197 int errstat = pthread_cond_init(&jcr->job_start_wait, NULL);
200 Jmsg1(jcr, M_FATAL, 0, _("Unable to init job cond variable: ERR=%s\n"), be.bstrerror(errstat));
204 Dmsg0(1000, "stored in start_job\n");
207 * Authenticate the Director
209 if (!authenticate_director(jcr)) {
210 Jmsg(jcr, M_FATAL, 0, _("Unable to authenticate Director\n"));
213 Dmsg0(90, "Message channel init completed.\n");
215 for (quit=false; !quit;) {
217 if ((bnet_stat = bs->recv()) <= 0) {
218 break; /* connection terminated */
220 Dmsg1(199, "<dird: %s\n", bs->msg);
221 /* Ensure that device initialization is complete */
226 for (i=0; cmds[i].cmd; i++) {
227 if (strncmp(cmds[i].cmd, bs->msg, strlen(cmds[i].cmd)) == 0) {
228 if ((!cmds[i].monitoraccess) && (jcr->director->monitor)) {
229 Dmsg1(100, "Command \"%s\" is invalid.\n", cmds[i].cmd);
230 bs->fsend(invalid_cmd);
231 bs->signal(BNET_EOD);
234 Dmsg1(200, "Do command: %s\n", cmds[i].cmd);
235 if (!cmds[i].func(jcr)) { /* do command */
236 quit = true; /* error, get out */
237 Dmsg1(190, "Command %s reqeusts quit\n", cmds[i].cmd);
239 found = true; /* indicate command found */
243 if (!found) { /* command not found */
249 generate_daemon_event(jcr, "JobEnd");
250 dequeue_messages(jcr); /* send any queued messages */
251 bs->signal(BNET_TERMINATE);
258 * Force SD to die, and hopefully dump itself. Turned on only
259 * in development version.
261 static bool die_cmd(JCR *jcr)
266 Pmsg0(000, "I have been requested to die ...");
267 a = djcr->JobId; /* ref NULL pointer */
275 * Set debug level as requested by the Director
278 static bool setdebug_cmd(JCR *jcr)
280 BSOCK *dir = jcr->dir_bsock;
281 int level, trace_flag;
283 Dmsg1(10, "setdebug_cmd: %s", dir->msg);
284 if (sscanf(dir->msg, "setdebug=%d trace=%d", &level, &trace_flag) != 2 || level < 0) {
285 dir->fsend(_("3991 Bad setdebug command: %s\n"), dir->msg);
289 set_trace(trace_flag);
290 return dir->fsend(OKsetdebug, level);
297 static bool cancel_cmd(JCR *cjcr)
299 BSOCK *dir = cjcr->dir_bsock;
301 char Job[MAX_NAME_LENGTH];
304 if (sscanf(dir->msg, "cancel Job=%127s", Job) == 1) {
305 if (!(jcr=get_jcr_by_full_name(Job))) {
306 dir->fsend(_("3904 Job %s not found.\n"), Job);
308 oldStatus = jcr->JobStatus;
309 set_jcr_job_status(jcr, JS_Canceled);
310 if (!jcr->authenticated && oldStatus == JS_WaitFD) {
311 pthread_cond_signal(&jcr->job_start_wait); /* wake waiting thread */
313 if (jcr->file_bsock) {
314 bnet_sig(jcr->file_bsock, BNET_TERMINATE);
316 /* Still waiting for FD to connect, release it */
317 pthread_cond_signal(&jcr->job_start_wait); /* wake waiting job */
319 /* If thread waiting on mount, wake him */
320 if (jcr->dcr && jcr->dcr->dev && jcr->dcr->dev->waiting_for_mount()) {
321 pthread_cond_broadcast(&jcr->dcr->dev->wait_next_vol);
322 Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)jcr->JobId);
323 pthread_cond_broadcast(&wait_device_release);
325 if (jcr->read_dcr && jcr->read_dcr->dev && jcr->read_dcr->dev->waiting_for_mount()) {
326 pthread_cond_broadcast(&jcr->read_dcr->dev->wait_next_vol);
327 Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)jcr->JobId);
328 pthread_cond_broadcast(&wait_device_release);
330 Jmsg(jcr, M_INFO, 0, _("Job %s marked to be canceled.\n"), jcr->Job);
331 dir->fsend(_("3000 Job %s marked to be canceled.\n"), jcr->Job);
335 dir->fsend(_("3903 Error scanning cancel command.\n"));
337 dir->signal(BNET_EOD);
345 static bool label_cmd(JCR *jcr)
347 return do_label(jcr, 0);
350 static bool relabel_cmd(JCR *jcr)
352 return do_label(jcr, 1);
355 static bool do_label(JCR *jcr, int relabel)
357 POOLMEM *newname, *oldname, *poolname, *mtype;
359 BSOCK *dir = jcr->dir_bsock;
366 newname = get_memory(dir->msglen+1);
367 oldname = get_memory(dir->msglen+1);
368 poolname = get_memory(dir->msglen+1);
369 mtype = get_memory(dir->msglen+1);
371 if (sscanf(dir->msg, "relabel %127s OldName=%127s NewName=%127s PoolName=%127s "
372 "MediaType=%127s Slot=%d drive=%d",
373 dev_name.c_str(), oldname, newname, poolname, mtype,
374 &slot, &drive) == 7) {
379 if (sscanf(dir->msg, "label %127s VolumeName=%127s PoolName=%127s "
380 "MediaType=%127s Slot=%d drive=%d",
381 dev_name.c_str(), newname, poolname, mtype, &slot, &drive) == 6) {
386 unbash_spaces(newname);
387 unbash_spaces(oldname);
388 unbash_spaces(poolname);
389 unbash_spaces(mtype);
390 dcr = find_device(jcr, dev_name, drive);
393 dev->dlock(); /* Use P to avoid indefinite block */
394 if (!dev->is_open() && !dev->is_busy()) {
395 Dmsg1(400, "Can %slabel. Device is not open\n", relabel?"re":"");
396 label_volume_if_ok(dcr, oldname, newname, poolname, slot, relabel);
398 /* Under certain "safe" conditions, we can steal the lock */
399 } else if (dev->can_steal_lock()) {
400 Dmsg0(400, "Can relabel. can_steal_lock\n");
401 label_volume_if_ok(dcr, oldname, newname, poolname, slot, relabel);
402 } else if (dev->is_busy() || dev->is_blocked()) {
403 send_dir_busy_message(dir, dev);
404 } else { /* device not being used */
405 Dmsg0(400, "Can relabel. device not used\n");
406 label_volume_if_ok(dcr, oldname, newname, poolname, slot, relabel);
411 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), dev_name.c_str());
414 /* NB dir->msg gets clobbered in bnet_fsend, so save command */
415 pm_strcpy(jcr->errmsg, dir->msg);
416 dir->fsend(_("3903 Error scanning label command: %s\n"), jcr->errmsg);
418 free_memory(oldname);
419 free_memory(newname);
420 free_memory(poolname);
422 dir->signal(BNET_EOD);
427 * Read the tape label and determine if we can safely
428 * label the tape (not a Bacula volume), then label it.
430 * Enter with the mutex set
432 static void label_volume_if_ok(DCR *dcr, char *oldname,
433 char *newname, char *poolname,
434 int slot, int relabel)
436 BSOCK *dir = dcr->jcr->dir_bsock;
438 DEVICE *dev = dcr->dev;
441 const char *volname = (relabel == 1) ? oldname : newname;
444 steal_device_lock(dev, &hold, BST_WRITING_LABEL);
445 Dmsg1(100, "Stole device %s lock, writing label.\n", dev->print_name());
448 Dmsg0(90, "try_autoload_device - looking for volume_info\n");
449 if (!try_autoload_device(dcr->jcr, dcr, slot, volname)) {
450 goto bail_out; /* error */
453 /* Ensure that the device is open -- autoload_device() closes it */
454 if (dev->is_tape()) {
455 mode = OPEN_READ_WRITE;
457 mode = CREATE_READ_WRITE;
461 dev->truncating = true; /* let open() know we will truncate it */
463 /* Set old volume name for open if relabeling */
464 bstrncpy(dcr->VolCatInfo.VolCatName, volname, sizeof(dcr->VolCatInfo.VolCatName));
465 if (dev->open(dcr, mode) < 0) {
466 dir->fsend(_("3910 Unable to open device %s: ERR=%s\n"),
467 dev->print_name(), dev->bstrerror());
471 /* See what we have for a Volume */
472 label_status = read_dev_volume_label(dcr);
474 /* Set new volume name */
475 bstrncpy(dcr->VolCatInfo.VolCatName, newname, sizeof(dcr->VolCatInfo.VolCatName));
476 switch(label_status) {
478 case VOL_VERSION_ERROR:
479 case VOL_LABEL_ERROR:
483 "3920 Cannot label Volume because it is already labeled: \"%s\"\n"),
484 dev->VolHdr.VolumeName);
488 /* Relabel request. If oldname matches, continue */
489 if (strcmp(oldname, dev->VolHdr.VolumeName) != 0) {
490 dir->fsend(_("3921 Wrong volume mounted.\n"));
493 if (dev->label_type != B_BACULA_LABEL) {
494 dir->fsend(_("3922 Cannot relabel an ANSI/IBM labeled Volume.\n"));
497 /* Fall through wanted! */
500 if (!write_new_volume_label_to_dev(dcr, newname, poolname,
501 relabel, true /* write dvd now */)) {
502 dir->fsend(_("3912 Failed to label Volume: ERR=%s\n"), dev->bstrerror());
505 bstrncpy(dcr->VolumeName, newname, sizeof(dcr->VolumeName));
506 /* The following 3000 OK label. string is scanned in ua_label.c */
507 dir->fsend("3000 OK label. VolBytes=%s DVD=%d Volume=\"%s\" Device=%s\n",
508 edit_uint64(dev->VolCatInfo.VolCatBytes, ed1),
509 dev->is_dvd()?1:0, newname, dev->print_name());
512 dir->fsend(_("3914 Failed to label Volume (no media): ERR=%s\n"), dev->bstrerror());
515 dir->fsend(_("3913 Cannot label Volume. "
516 "Unknown status %d from read_volume_label()\n"), label_status);
521 if (!dev->is_open()) {
524 volume_unused(dcr); /* no longer using volume */
525 give_back_device_lock(dev, &hold);
531 * Read the tape label
533 * Enter with the mutex set
535 static bool read_label(DCR *dcr)
539 BSOCK *dir = jcr->dir_bsock;
541 DEVICE *dev = dcr->dev;
543 steal_device_lock(dev, &hold, BST_DOING_ACQUIRE);
545 dcr->VolumeName[0] = 0;
546 dev->clear_labeled(); /* force read of label */
547 switch (read_dev_volume_label(dcr)) {
549 dir->fsend(_("3001 Mounted Volume: %s\n"), dev->VolHdr.VolumeName);
553 dir->fsend(_("3902 Cannot mount Volume on Storage Device %s because:\n%s"),
554 dev->print_name(), jcr->errmsg);
559 give_back_device_lock(dev, &hold);
564 * Searches for device by name, and if found, creates a dcr and
567 static DCR *find_device(JCR *jcr, POOL_MEM &devname, int drive)
570 AUTOCHANGER *changer;
574 unbash_spaces(devname);
575 foreach_res(device, R_DEVICE) {
576 /* Find resource, and make sure we were able to open it */
577 if (strcmp(device->hdr.name, devname.c_str()) == 0) {
579 device->dev = init_dev(jcr, device);
582 Jmsg(jcr, M_WARNING, 0, _("\n"
583 " Device \"%s\" requested by DIR could not be opened or does not exist.\n"),
587 Dmsg1(20, "Found device %s\n", device->hdr.name);
593 foreach_res(changer, R_AUTOCHANGER) {
594 /* Find resource, and make sure we were able to open it */
595 if (strcmp(devname.c_str(), changer->hdr.name) == 0) {
596 /* Try each device in this AutoChanger */
597 foreach_alist(device, changer->device) {
598 Dmsg1(100, "Try changer device %s\n", device->hdr.name);
600 device->dev = init_dev(jcr, device);
603 Dmsg1(100, "Device %s could not be opened. Skipped\n", devname.c_str());
604 Jmsg(jcr, M_WARNING, 0, _("\n"
605 " Device \"%s\" in changer \"%s\" requested by DIR could not be opened or does not exist.\n"),
606 device->hdr.name, devname.c_str());
609 if (!device->dev->autoselect) {
610 Dmsg1(100, "Device %s not autoselect skipped.\n", devname.c_str());
611 continue; /* device is not available */
613 if (drive < 0 || drive == (int)device->dev->drive_index) {
614 Dmsg1(20, "Found changer device %s\n", device->hdr.name);
618 Dmsg3(100, "Device %s drive wrong: want=%d got=%d skipping\n",
619 devname.c_str(), drive, (int)device->dev->drive_index);
621 break; /* we found it but could not open a device */
627 Dmsg1(100, "Found device %s\n", device->hdr.name);
628 dcr = new_dcr(jcr, NULL, device->dev);
629 dcr->device = device;
636 * Mount command from Director
638 static bool mount_cmd(JCR *jcr)
641 BSOCK *dir = jcr->dir_bsock;
648 ok = sscanf(dir->msg, "mount %127s drive=%d slot=%d", devname.c_str(),
651 ok = sscanf(dir->msg, "mount %127s drive=%d", devname.c_str(), &drive) == 2;
654 dcr = find_device(jcr, devname, drive);
657 dev->dlock(); /* Use P to avoid indefinite block */
658 Dmsg2(100, "mount cmd blocked=%d must_unload=%d\n", dev->blocked(),
660 switch (dev->blocked()) { /* device blocked? */
661 case BST_WAITING_FOR_SYSOP:
662 /* Someone is waiting, wake him */
663 Dmsg0(100, "Waiting for mount. Attempting to wake thread\n");
664 dev->set_blocked(BST_MOUNT);
665 dir->fsend("3001 OK mount requested. %sDevice=%s\n",
666 slot>0?_("Specified slot ignored. "):"",
668 pthread_cond_broadcast(&dev->wait_next_vol);
669 Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)dcr->jcr->JobId);
670 pthread_cond_broadcast(&wait_device_release);
673 /* In both of these two cases, we (the user) unmounted the Volume */
674 case BST_UNMOUNTED_WAITING_FOR_SYSOP:
676 if (dev->is_autochanger() && slot > 0) {
677 try_autoload_device(jcr, dcr, slot, "");
679 /* We freed the device, so reopen it and wake any waiting threads */
680 if (dev->open(dcr, OPEN_READ_ONLY) < 0) {
681 dir->fsend(_("3901 Unable to open device %s: ERR=%s\n"),
682 dev->print_name(), dev->bstrerror());
683 if (dev->blocked() == BST_UNMOUNTED) {
684 /* We blocked the device, so unblock it */
685 Dmsg0(100, "Unmounted. Unblocking device\n");
690 read_dev_volume_label(dcr);
691 if (dev->blocked() == BST_UNMOUNTED) {
692 /* We blocked the device, so unblock it */
693 Dmsg0(100, "Unmounted. Unblocking device\n");
694 read_label(dcr); /* this should not be necessary */
697 Dmsg0(100, "Unmounted waiting for mount. Attempting to wake thread\n");
698 dev->set_blocked(BST_MOUNT);
700 if (dev->is_labeled()) {
701 dir->fsend(_("3001 Device %s is mounted with Volume \"%s\"\n"),
702 dev->print_name(), dev->VolHdr.VolumeName);
704 dir->fsend(_("3905 Device %s open but no Bacula volume is mounted.\n"
705 "If this is not a blank tape, try unmounting and remounting the Volume.\n"),
708 pthread_cond_broadcast(&dev->wait_next_vol);
709 Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)dcr->jcr->JobId);
710 pthread_cond_broadcast(&wait_device_release);
713 case BST_DOING_ACQUIRE:
714 dir->fsend(_("3001 Device %s is doing acquire.\n"),
718 case BST_WRITING_LABEL:
719 dir->fsend(_("3903 Device %s is being labeled.\n"),
723 case BST_NOT_BLOCKED:
724 if (dev->is_autochanger() && slot > 0) {
725 try_autoload_device(jcr, dcr, slot, "");
727 if (dev->is_open()) {
728 if (dev->is_labeled()) {
729 dir->fsend(_("3001 Device %s is mounted with Volume \"%s\"\n"),
730 dev->print_name(), dev->VolHdr.VolumeName);
732 dir->fsend(_("3905 Device %s open but no Bacula volume is mounted.\n"
733 "If this is not a blank tape, try unmounting and remounting the Volume.\n"),
736 } else if (dev->is_tape()) {
737 if (dev->open(dcr, OPEN_READ_ONLY) < 0) {
738 dir->fsend(_("3901 Unable to open device %s: ERR=%s\n"),
739 dev->print_name(), dev->bstrerror());
743 if (dev->is_labeled()) {
744 dir->fsend(_("3001 Device %s is already mounted with Volume \"%s\"\n"),
745 dev->print_name(), dev->VolHdr.VolumeName);
747 dir->fsend(_("3905 Device %s open but no Bacula volume is mounted.\n"
748 "If this is not a blank tape, try unmounting and remounting the Volume.\n"),
751 } else if (dev->is_unmountable()) {
753 dir->fsend(_("3002 Device %s is mounted.\n"),
756 dir->fsend(_("3907 %s"), dev->bstrerror());
758 } else { /* must be file */
759 dir->fsend(_("3906 File device %s is always mounted.\n"),
765 dir->fsend(_("3905 Bizarre wait state %d\n"), dev->blocked());
771 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
774 pm_strcpy(jcr->errmsg, dir->msg);
775 dir->fsend(_("3909 Error scanning mount command: %s\n"), jcr->errmsg);
777 dir->signal(BNET_EOD);
782 * unmount command from Director
784 static bool unmount_cmd(JCR *jcr)
787 BSOCK *dir = jcr->dir_bsock;
792 if (sscanf(dir->msg, "unmount %127s drive=%d", devname.c_str(), &drive) == 2) {
793 dcr = find_device(jcr, devname, drive);
796 dev->dlock(); /* Use P to avoid indefinite block */
797 if (!dev->is_open()) {
798 if (!dev->is_busy()) {
799 unload_autochanger(dcr, -1);
801 if (dev->is_unmountable()) {
802 if (dev->unmount(0)) {
803 dir->fsend(_("3002 Device %s unmounted.\n"),
806 dir->fsend(_("3907 %s"), dev->bstrerror());
809 Dmsg0(90, "Device already unmounted\n");
810 dir->fsend(_("3901 Device %s is already unmounted.\n"),
813 } else if (dev->blocked() == BST_WAITING_FOR_SYSOP) {
814 Dmsg2(90, "%d waiter dev_block=%d. doing unmount\n", dev->num_waiting,
816 if (!unload_autochanger(dcr, -1)) {
817 /* ***FIXME**** what is this ???? */
821 if (dev->is_unmountable() && !dev->unmount(0)) {
822 dir->fsend(_("3907 %s"), dev->bstrerror());
824 dev->set_blocked(BST_UNMOUNTED_WAITING_FOR_SYSOP);
825 dir->fsend(_("3001 Device %s unmounted.\n"),
829 } else if (dev->blocked() == BST_DOING_ACQUIRE) {
830 dir->fsend(_("3902 Device %s is busy in acquire.\n"),
833 } else if (dev->blocked() == BST_WRITING_LABEL) {
834 dir->fsend(_("3903 Device %s is being labeled.\n"),
837 } else if (dev->is_busy()) {
838 send_dir_busy_message(dir, dev);
839 } else { /* device not being used */
840 Dmsg0(90, "Device not in use, unmounting\n");
841 /* On FreeBSD, I am having ASSERT() failures in block_device()
842 * and I can only imagine that the thread id that we are
843 * leaving in no_wait_id is being re-used. So here,
844 * we simply do it by hand. Gross, but a solution.
846 /* block_device(dev, BST_UNMOUNTED); replace with 2 lines below */
847 dev->set_blocked(BST_UNMOUNTED);
848 clear_thread_id(dev->no_wait_id);
849 if (!unload_autochanger(dcr, -1)) {
853 if (dev->is_unmountable() && !dev->unmount(0)) {
854 dir->fsend(_("3907 %s"), dev->bstrerror());
856 dir->fsend(_("3002 Device %s unmounted.\n"),
863 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
866 /* NB dir->msg gets clobbered in bnet_fsend, so save command */
867 pm_strcpy(jcr->errmsg, dir->msg);
868 dir->fsend(_("3907 Error scanning unmount command: %s\n"), jcr->errmsg);
870 dir->signal(BNET_EOD);
875 * The truncate command will recycle a volume. The director can call this
876 * after purging a volume so that disk space will not be wasted. Only useful
877 * for File Storage, of course.
880 static bool action_on_purge_cmd(JCR *jcr)
884 BSOCK *dir = jcr->dir_bsock;
889 if (sscanf(dir->msg, "action_on_purge %127s vol=%s action=%d",
890 devname.c_str(), volumename.c_str(), &action) != 3) {
891 dir->fsend(_("3916 Error scanning action_on_purge command\n"));
894 unbash_spaces(volumename.c_str());
896 /* FIXME: autochanger, drive = 0? how can we avoid that? we only work on
899 if ((dcr = find_device(jcr, devname, 0)) == NULL) {
900 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
906 /* Store the VolumeName for opening and re-labeling the volume */
907 bstrncpy(dcr->VolumeName, volumename.c_str(), sizeof(dcr->VolumeName));
908 bstrncpy(dev->VolHdr.VolumeName, volumename.c_str(), sizeof(dev->VolHdr.VolumeName));
910 /* Re-write the label with the recycle flag */
911 if (rewrite_volume_label(dcr, true)) {
912 dir->fsend(_("3917 Volume recycled\n"));
914 dir->fsend(_("3918 Recycle failed\n"));
918 dir->signal(BNET_EOD);
923 * Release command from Director. This rewinds the device and if
924 * configured does a offline and ensures that Bacula will
925 * re-read the label of the tape before continuing. This gives
926 * the operator the chance to change the tape anytime before the
929 static bool release_cmd(JCR *jcr)
932 BSOCK *dir = jcr->dir_bsock;
937 if (sscanf(dir->msg, "release %127s drive=%d", devname.c_str(), &drive) == 2) {
938 dcr = find_device(jcr, devname, drive);
941 dev->dlock(); /* Use P to avoid indefinite block */
942 if (!dev->is_open()) {
943 if (!dev->is_busy()) {
944 unload_autochanger(dcr, -1);
946 Dmsg0(90, "Device already released\n");
947 dir->fsend(_("3921 Device %s already released.\n"),
950 } else if (dev->blocked() == BST_WAITING_FOR_SYSOP) {
951 Dmsg2(90, "%d waiter dev_block=%d.\n", dev->num_waiting,
953 unload_autochanger(dcr, -1);
954 dir->fsend(_("3922 Device %s waiting for sysop.\n"),
957 } else if (dev->blocked() == BST_UNMOUNTED_WAITING_FOR_SYSOP) {
958 Dmsg2(90, "%d waiter dev_block=%d. doing unmount\n", dev->num_waiting,
960 dir->fsend(_("3922 Device %s waiting for mount.\n"),
963 } else if (dev->blocked() == BST_DOING_ACQUIRE) {
964 dir->fsend(_("3923 Device %s is busy in acquire.\n"),
967 } else if (dev->blocked() == BST_WRITING_LABEL) {
968 dir->fsend(_("3914 Device %s is being labeled.\n"),
971 } else if (dev->is_busy()) {
972 send_dir_busy_message(dir, dev);
973 } else { /* device not being used */
974 Dmsg0(90, "Device not in use, releasing\n");
975 dcr->release_volume();
976 dir->fsend(_("3022 Device %s released.\n"),
982 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
985 /* NB dir->msg gets clobbered in bnet_fsend, so save command */
986 pm_strcpy(jcr->errmsg, dir->msg);
987 dir->fsend(_("3927 Error scanning release command: %s\n"), jcr->errmsg);
989 dir->signal(BNET_EOD);
993 static pthread_mutex_t bsr_mutex = PTHREAD_MUTEX_INITIALIZER;
994 static uint32_t bsr_uniq = 0;
996 static bool get_bootstrap_file(JCR *jcr, BSOCK *sock)
998 POOLMEM *fname = get_pool_memory(PM_FNAME);
1002 if (jcr->RestoreBootstrap) {
1003 unlink(jcr->RestoreBootstrap);
1004 free_pool_memory(jcr->RestoreBootstrap);
1008 Mmsg(fname, "%s/%s.%s.%d.bootstrap", me->working_directory, me->hdr.name,
1009 jcr->Job, bsr_uniq);
1011 Dmsg1(400, "bootstrap=%s\n", fname);
1012 jcr->RestoreBootstrap = fname;
1013 bs = fopen(fname, "a+b"); /* create file */
1016 Jmsg(jcr, M_FATAL, 0, _("Could not create bootstrap file %s: ERR=%s\n"),
1017 jcr->RestoreBootstrap, be.bstrerror());
1020 Dmsg0(10, "=== Bootstrap file ===\n");
1021 while (sock->recv() >= 0) {
1022 Dmsg1(10, "%s", sock->msg);
1023 fputs(sock->msg, bs);
1026 Dmsg0(10, "=== end bootstrap file ===\n");
1027 jcr->bsr = parse_bsr(jcr, jcr->RestoreBootstrap);
1029 Jmsg(jcr, M_FATAL, 0, _("Error parsing bootstrap file.\n"));
1032 if (debug_level >= 10) {
1033 dump_bsr(jcr->bsr, true);
1035 /* If we got a bootstrap, we are reading, so create read volume list */
1036 create_restore_volume_list(jcr);
1040 unlink(jcr->RestoreBootstrap);
1041 free_pool_memory(jcr->RestoreBootstrap);
1042 jcr->RestoreBootstrap = NULL;
1044 sock->fsend(ERROR_bootstrap);
1047 return sock->fsend(OK_bootstrap);
1050 static bool bootstrap_cmd(JCR *jcr)
1052 return get_bootstrap_file(jcr, jcr->dir_bsock);
1056 * Autochanger command from Director
1058 static bool changer_cmd(JCR *jcr)
1061 BSOCK *dir = jcr->dir_bsock;
1064 const char *cmd = NULL;
1067 * A safe_cmd may call autochanger script but does not load/unload
1068 * slots so it can be done at the same time that the drive is open.
1070 bool safe_cmd = false;
1072 if (sscanf(dir->msg, "autochanger listall %127s", devname.c_str()) == 1) {
1074 safe_cmd = ok = true;
1075 } else if (sscanf(dir->msg, "autochanger list %127s", devname.c_str()) == 1) {
1077 safe_cmd = ok = true;
1078 } else if (sscanf(dir->msg, "autochanger slots %127s", devname.c_str()) == 1) {
1080 safe_cmd = ok = true;
1081 } else if (sscanf(dir->msg, "autochanger drives %127s", devname.c_str()) == 1) {
1083 safe_cmd = ok = true;
1086 dcr = find_device(jcr, devname, -1);
1089 dev->dlock(); /* Use P to avoid indefinite block */
1090 if (!dev->device->changer_res) {
1091 dir->fsend(_("3995 Device %s is not an autochanger.\n"),
1093 /* Under certain "safe" conditions, we can steal the lock */
1094 } else if (safe_cmd || !dev->is_open() || dev->can_steal_lock()) {
1095 autochanger_cmd(dcr, dir, cmd);
1096 } else if (dev->is_busy() || dev->is_blocked()) {
1097 send_dir_busy_message(dir, dev);
1098 } else { /* device not being used */
1099 autochanger_cmd(dcr, dir, cmd);
1104 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
1106 } else { /* error on scanf */
1107 pm_strcpy(jcr->errmsg, dir->msg);
1108 dir->fsend(_("3908 Error scanning autocharger drives/list/slots command: %s\n"),
1111 dir->signal(BNET_EOD);
1116 * Read and return the Volume label
1118 static bool readlabel_cmd(JCR *jcr)
1121 BSOCK *dir = jcr->dir_bsock;
1127 if (sscanf(dir->msg, "readlabel %127s Slot=%d drive=%d", devname.c_str(),
1128 &Slot, &drive) == 3) {
1129 dcr = find_device(jcr, devname, drive);
1132 dev->dlock(); /* Use P to avoid indefinite block */
1133 if (!dev->is_open()) {
1134 read_volume_label(jcr, dcr, dev, Slot);
1136 /* Under certain "safe" conditions, we can steal the lock */
1137 } else if (dev->can_steal_lock()) {
1138 read_volume_label(jcr, dcr, dev, Slot);
1139 } else if (dev->is_busy() || dev->is_blocked()) {
1140 send_dir_busy_message(dir, dev);
1141 } else { /* device not being used */
1142 read_volume_label(jcr, dcr, dev, Slot);
1147 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
1150 pm_strcpy(jcr->errmsg, dir->msg);
1151 dir->fsend(_("3909 Error scanning readlabel command: %s\n"), jcr->errmsg);
1153 dir->signal(BNET_EOD);
1159 * Read the tape label
1161 * Enter with the mutex set
1163 static void read_volume_label(JCR *jcr, DCR *dcr, DEVICE *dev, int Slot)
1165 BSOCK *dir = jcr->dir_bsock;
1169 steal_device_lock(dev, &hold, BST_WRITING_LABEL);
1171 if (!try_autoload_device(jcr, dcr, Slot, "")) {
1172 goto bail_out; /* error */
1175 dev->clear_labeled(); /* force read of label */
1176 switch (read_dev_volume_label(dcr)) {
1178 /* DO NOT add quotes around the Volume name. It is scanned in the DIR */
1179 dir->fsend(_("3001 Volume=%s Slot=%d\n"), dev->VolHdr.VolumeName, Slot);
1180 Dmsg1(100, "Volume: %s\n", dev->VolHdr.VolumeName);
1183 dir->fsend(_("3902 Cannot mount Volume on Storage Device %s because:\n%s"),
1184 dev->print_name(), jcr->errmsg);
1189 give_back_device_lock(dev, &hold);
1193 static bool try_autoload_device(JCR *jcr, DCR *dcr, int slot, const char *VolName)
1195 BSOCK *dir = jcr->dir_bsock;
1197 bstrncpy(dcr->VolumeName, VolName, sizeof(dcr->VolumeName));
1198 dcr->VolCatInfo.Slot = slot;
1199 dcr->VolCatInfo.InChanger = slot > 0;
1200 if (autoload_device(dcr, 0, dir) < 0) { /* autoload if possible */
1206 static void send_dir_busy_message(BSOCK *dir, DEVICE *dev)
1208 if (dev->is_blocked()) {
1209 switch (dev->blocked()) {
1211 dir->fsend(_("3931 Device %s is BLOCKED. user unmounted.\n"),
1214 case BST_UNMOUNTED_WAITING_FOR_SYSOP:
1215 dir->fsend(_("3932 Device %s is BLOCKED. user unmounted during wait for media/mount.\n"),
1218 case BST_WAITING_FOR_SYSOP:
1219 dir->fsend(_("3933 Device %s is BLOCKED waiting for media.\n"),
1222 case BST_DOING_ACQUIRE:
1223 dir->fsend(_("3934 Device %s is being initialized.\n"),
1226 case BST_WRITING_LABEL:
1227 dir->fsend(_("3935 Device %s is blocked labeling a Volume.\n"),
1231 dir->fsend(_("3935 Device %s is blocked for unknown reason.\n"),
1235 } else if (dev->can_read()) {
1236 dir->fsend(_("3936 Device %s is busy reading.\n"),
1237 dev->print_name());;
1239 dir->fsend(_("3937 Device %s is busy with %d writer(s).\n"),
1240 dev->print_name(), dev->num_writers);