2 Bacula® - The Network Backup Solution
4 Copyright (C) 2001-2009 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 BSOCK *dir = jcr->dir_bsock;
267 pthread_mutex_t m=PTHREAD_MUTEX_INITIALIZER;
269 if (strstr(dir->msg, "deadlock")) {
270 Pmsg0(000, "I have been requested to deadlock ...\n");
275 Pmsg1(000, "I have been requested to die ... (%s)\n", dir->msg);
276 a = djcr->JobId; /* ref NULL pointer */
284 * Set debug level as requested by the Director
287 static bool setdebug_cmd(JCR *jcr)
289 BSOCK *dir = jcr->dir_bsock;
290 int level, trace_flag;
292 Dmsg1(10, "setdebug_cmd: %s", dir->msg);
293 if (sscanf(dir->msg, "setdebug=%d trace=%d", &level, &trace_flag) != 2 || level < 0) {
294 dir->fsend(_("3991 Bad setdebug command: %s\n"), dir->msg);
298 set_trace(trace_flag);
299 return dir->fsend(OKsetdebug, level);
306 static bool cancel_cmd(JCR *cjcr)
308 BSOCK *dir = cjcr->dir_bsock;
310 char Job[MAX_NAME_LENGTH];
313 if (sscanf(dir->msg, "cancel Job=%127s", Job) == 1) {
314 if (!(jcr=get_jcr_by_full_name(Job))) {
315 dir->fsend(_("3904 Job %s not found.\n"), Job);
317 oldStatus = jcr->JobStatus;
318 set_jcr_job_status(jcr, JS_Canceled);
319 if (!jcr->authenticated && oldStatus == JS_WaitFD) {
320 pthread_cond_signal(&jcr->job_start_wait); /* wake waiting thread */
322 if (jcr->file_bsock) {
323 bnet_sig(jcr->file_bsock, BNET_TERMINATE);
325 /* Still waiting for FD to connect, release it */
326 pthread_cond_signal(&jcr->job_start_wait); /* wake waiting job */
328 /* If thread waiting on mount, wake him */
329 if (jcr->dcr && jcr->dcr->dev && jcr->dcr->dev->waiting_for_mount()) {
330 pthread_cond_broadcast(&jcr->dcr->dev->wait_next_vol);
331 Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)jcr->JobId);
332 pthread_cond_broadcast(&wait_device_release);
334 if (jcr->read_dcr && jcr->read_dcr->dev && jcr->read_dcr->dev->waiting_for_mount()) {
335 pthread_cond_broadcast(&jcr->read_dcr->dev->wait_next_vol);
336 Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)jcr->JobId);
337 pthread_cond_broadcast(&wait_device_release);
339 Jmsg(jcr, M_INFO, 0, _("JobId=%d Job=\"%s\" marked to be canceled.\n"),
340 (int)jcr->JobId, jcr->Job);
341 dir->fsend(_("3000 Job %s marked to be canceled.\n"), jcr->Job);
345 dir->fsend(_("3903 Error scanning cancel command.\n"));
347 dir->signal(BNET_EOD);
355 static bool label_cmd(JCR *jcr)
357 return do_label(jcr, 0);
360 static bool relabel_cmd(JCR *jcr)
362 return do_label(jcr, 1);
365 static bool do_label(JCR *jcr, int relabel)
367 POOLMEM *newname, *oldname, *poolname, *mtype;
369 BSOCK *dir = jcr->dir_bsock;
376 newname = get_memory(dir->msglen+1);
377 oldname = get_memory(dir->msglen+1);
378 poolname = get_memory(dir->msglen+1);
379 mtype = get_memory(dir->msglen+1);
381 if (sscanf(dir->msg, "relabel %127s OldName=%127s NewName=%127s PoolName=%127s "
382 "MediaType=%127s Slot=%d drive=%d",
383 dev_name.c_str(), oldname, newname, poolname, mtype,
384 &slot, &drive) == 7) {
389 if (sscanf(dir->msg, "label %127s VolumeName=%127s PoolName=%127s "
390 "MediaType=%127s Slot=%d drive=%d",
391 dev_name.c_str(), newname, poolname, mtype, &slot, &drive) == 6) {
396 unbash_spaces(newname);
397 unbash_spaces(oldname);
398 unbash_spaces(poolname);
399 unbash_spaces(mtype);
400 dcr = find_device(jcr, dev_name, drive);
403 dev->dlock(); /* Use P to avoid indefinite block */
404 if (!dev->is_open() && !dev->is_busy()) {
405 Dmsg1(400, "Can %slabel. Device is not open\n", relabel?"re":"");
406 label_volume_if_ok(dcr, oldname, newname, poolname, slot, relabel);
408 /* Under certain "safe" conditions, we can steal the lock */
409 } else if (dev->can_steal_lock()) {
410 Dmsg0(400, "Can relabel. can_steal_lock\n");
411 label_volume_if_ok(dcr, oldname, newname, poolname, slot, relabel);
412 } else if (dev->is_busy() || dev->is_blocked()) {
413 send_dir_busy_message(dir, dev);
414 } else { /* device not being used */
415 Dmsg0(400, "Can relabel. device not used\n");
416 label_volume_if_ok(dcr, oldname, newname, poolname, slot, relabel);
421 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), dev_name.c_str());
424 /* NB dir->msg gets clobbered in bnet_fsend, so save command */
425 pm_strcpy(jcr->errmsg, dir->msg);
426 dir->fsend(_("3903 Error scanning label command: %s\n"), jcr->errmsg);
428 free_memory(oldname);
429 free_memory(newname);
430 free_memory(poolname);
432 dir->signal(BNET_EOD);
437 * Read the tape label and determine if we can safely
438 * label the tape (not a Bacula volume), then label it.
440 * Enter with the mutex set
442 static void label_volume_if_ok(DCR *dcr, char *oldname,
443 char *newname, char *poolname,
444 int slot, int relabel)
446 BSOCK *dir = dcr->jcr->dir_bsock;
448 DEVICE *dev = dcr->dev;
451 const char *volname = (relabel == 1) ? oldname : newname;
454 steal_device_lock(dev, &hold, BST_WRITING_LABEL);
455 Dmsg1(100, "Stole device %s lock, writing label.\n", dev->print_name());
458 Dmsg0(90, "try_autoload_device - looking for volume_info\n");
459 if (!try_autoload_device(dcr->jcr, dcr, slot, volname)) {
460 goto bail_out; /* error */
463 /* Ensure that the device is open -- autoload_device() closes it */
464 if (dev->is_tape()) {
465 mode = OPEN_READ_WRITE;
467 mode = CREATE_READ_WRITE;
471 dev->truncating = true; /* let open() know we will truncate it */
473 /* Set old volume name for open if relabeling */
474 bstrncpy(dcr->VolCatInfo.VolCatName, volname, sizeof(dcr->VolCatInfo.VolCatName));
475 if (dev->open(dcr, mode) < 0) {
476 dir->fsend(_("3910 Unable to open device %s: ERR=%s\n"),
477 dev->print_name(), dev->bstrerror());
481 /* See what we have for a Volume */
482 label_status = read_dev_volume_label(dcr);
484 /* Set new volume name */
485 bstrncpy(dcr->VolCatInfo.VolCatName, newname, sizeof(dcr->VolCatInfo.VolCatName));
486 switch(label_status) {
488 case VOL_VERSION_ERROR:
489 case VOL_LABEL_ERROR:
493 "3920 Cannot label Volume because it is already labeled: \"%s\"\n"),
494 dev->VolHdr.VolumeName);
498 /* Relabel request. If oldname matches, continue */
499 if (strcmp(oldname, dev->VolHdr.VolumeName) != 0) {
500 dir->fsend(_("3921 Wrong volume mounted.\n"));
503 if (dev->label_type != B_BACULA_LABEL) {
504 dir->fsend(_("3922 Cannot relabel an ANSI/IBM labeled Volume.\n"));
507 /* Fall through wanted! */
510 if (!write_new_volume_label_to_dev(dcr, newname, poolname,
511 relabel, true /* write dvd now */)) {
512 dir->fsend(_("3912 Failed to label Volume: ERR=%s\n"), dev->bstrerror());
515 bstrncpy(dcr->VolumeName, newname, sizeof(dcr->VolumeName));
516 /* The following 3000 OK label. string is scanned in ua_label.c */
517 dir->fsend("3000 OK label. VolBytes=%s DVD=%d Volume=\"%s\" Device=%s\n",
518 edit_uint64(dev->VolCatInfo.VolCatBytes, ed1),
519 dev->is_dvd()?1:0, newname, dev->print_name());
522 dir->fsend(_("3914 Failed to label Volume (no media): ERR=%s\n"), dev->bstrerror());
525 dir->fsend(_("3913 Cannot label Volume. "
526 "Unknown status %d from read_volume_label()\n"), label_status);
531 if (!dev->is_open()) {
534 volume_unused(dcr); /* no longer using volume */
535 give_back_device_lock(dev, &hold);
541 * Read the tape label
543 * Enter with the mutex set
545 static bool read_label(DCR *dcr)
549 BSOCK *dir = jcr->dir_bsock;
551 DEVICE *dev = dcr->dev;
553 steal_device_lock(dev, &hold, BST_DOING_ACQUIRE);
555 dcr->VolumeName[0] = 0;
556 dev->clear_labeled(); /* force read of label */
557 switch (read_dev_volume_label(dcr)) {
559 dir->fsend(_("3001 Mounted Volume: %s\n"), dev->VolHdr.VolumeName);
563 dir->fsend(_("3902 Cannot mount Volume on Storage Device %s because:\n%s"),
564 dev->print_name(), jcr->errmsg);
569 give_back_device_lock(dev, &hold);
574 * Searches for device by name, and if found, creates a dcr and
577 static DCR *find_device(JCR *jcr, POOL_MEM &devname, int drive)
580 AUTOCHANGER *changer;
584 unbash_spaces(devname);
585 foreach_res(device, R_DEVICE) {
586 /* Find resource, and make sure we were able to open it */
587 if (strcmp(device->hdr.name, devname.c_str()) == 0) {
589 device->dev = init_dev(jcr, device);
592 Jmsg(jcr, M_WARNING, 0, _("\n"
593 " Device \"%s\" requested by DIR could not be opened or does not exist.\n"),
597 Dmsg1(20, "Found device %s\n", device->hdr.name);
603 foreach_res(changer, R_AUTOCHANGER) {
604 /* Find resource, and make sure we were able to open it */
605 if (strcmp(devname.c_str(), changer->hdr.name) == 0) {
606 /* Try each device in this AutoChanger */
607 foreach_alist(device, changer->device) {
608 Dmsg1(100, "Try changer device %s\n", device->hdr.name);
610 device->dev = init_dev(jcr, device);
613 Dmsg1(100, "Device %s could not be opened. Skipped\n", devname.c_str());
614 Jmsg(jcr, M_WARNING, 0, _("\n"
615 " Device \"%s\" in changer \"%s\" requested by DIR could not be opened or does not exist.\n"),
616 device->hdr.name, devname.c_str());
619 if (!device->dev->autoselect) {
620 Dmsg1(100, "Device %s not autoselect skipped.\n", devname.c_str());
621 continue; /* device is not available */
623 if (drive < 0 || drive == (int)device->dev->drive_index) {
624 Dmsg1(20, "Found changer device %s\n", device->hdr.name);
628 Dmsg3(100, "Device %s drive wrong: want=%d got=%d skipping\n",
629 devname.c_str(), drive, (int)device->dev->drive_index);
631 break; /* we found it but could not open a device */
637 Dmsg1(100, "Found device %s\n", device->hdr.name);
638 dcr = new_dcr(jcr, NULL, device->dev);
639 dcr->device = device;
646 * Mount command from Director
648 static bool mount_cmd(JCR *jcr)
651 BSOCK *dir = jcr->dir_bsock;
658 ok = sscanf(dir->msg, "mount %127s drive=%d slot=%d", devname.c_str(),
661 ok = sscanf(dir->msg, "mount %127s drive=%d", devname.c_str(), &drive) == 2;
664 dcr = find_device(jcr, devname, drive);
667 dev->dlock(); /* Use P to avoid indefinite block */
668 Dmsg2(100, "mount cmd blocked=%d must_unload=%d\n", dev->blocked(),
670 switch (dev->blocked()) { /* device blocked? */
671 case BST_WAITING_FOR_SYSOP:
672 /* Someone is waiting, wake him */
673 Dmsg0(100, "Waiting for mount. Attempting to wake thread\n");
674 dev->set_blocked(BST_MOUNT);
675 dir->fsend("3001 OK mount requested. %sDevice=%s\n",
676 slot>0?_("Specified slot ignored. "):"",
678 pthread_cond_broadcast(&dev->wait_next_vol);
679 Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)dcr->jcr->JobId);
680 pthread_cond_broadcast(&wait_device_release);
683 /* In both of these two cases, we (the user) unmounted the Volume */
684 case BST_UNMOUNTED_WAITING_FOR_SYSOP:
686 if (dev->is_autochanger() && slot > 0) {
687 try_autoload_device(jcr, dcr, slot, "");
689 /* We freed the device, so reopen it and wake any waiting threads */
690 if (dev->open(dcr, OPEN_READ_ONLY) < 0) {
691 dir->fsend(_("3901 Unable to open device %s: ERR=%s\n"),
692 dev->print_name(), dev->bstrerror());
693 if (dev->blocked() == BST_UNMOUNTED) {
694 /* We blocked the device, so unblock it */
695 Dmsg0(100, "Unmounted. Unblocking device\n");
700 read_dev_volume_label(dcr);
701 if (dev->blocked() == BST_UNMOUNTED) {
702 /* We blocked the device, so unblock it */
703 Dmsg0(100, "Unmounted. Unblocking device\n");
704 read_label(dcr); /* this should not be necessary */
707 Dmsg0(100, "Unmounted waiting for mount. Attempting to wake thread\n");
708 dev->set_blocked(BST_MOUNT);
710 if (dev->is_labeled()) {
711 dir->fsend(_("3001 Device %s is mounted with Volume \"%s\"\n"),
712 dev->print_name(), dev->VolHdr.VolumeName);
714 dir->fsend(_("3905 Device %s open but no Bacula volume is mounted.\n"
715 "If this is not a blank tape, try unmounting and remounting the Volume.\n"),
718 pthread_cond_broadcast(&dev->wait_next_vol);
719 Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)dcr->jcr->JobId);
720 pthread_cond_broadcast(&wait_device_release);
723 case BST_DOING_ACQUIRE:
724 dir->fsend(_("3001 Device %s is doing acquire.\n"),
728 case BST_WRITING_LABEL:
729 dir->fsend(_("3903 Device %s is being labeled.\n"),
733 case BST_NOT_BLOCKED:
734 if (dev->is_autochanger() && slot > 0) {
735 try_autoload_device(jcr, dcr, slot, "");
737 if (dev->is_open()) {
738 if (dev->is_labeled()) {
739 dir->fsend(_("3001 Device %s is mounted with Volume \"%s\"\n"),
740 dev->print_name(), dev->VolHdr.VolumeName);
742 dir->fsend(_("3905 Device %s open but no Bacula volume is mounted.\n"
743 "If this is not a blank tape, try unmounting and remounting the Volume.\n"),
746 } else if (dev->is_tape()) {
747 if (dev->open(dcr, OPEN_READ_ONLY) < 0) {
748 dir->fsend(_("3901 Unable to open device %s: ERR=%s\n"),
749 dev->print_name(), dev->bstrerror());
753 if (dev->is_labeled()) {
754 dir->fsend(_("3001 Device %s is already mounted with Volume \"%s\"\n"),
755 dev->print_name(), dev->VolHdr.VolumeName);
757 dir->fsend(_("3905 Device %s open but no Bacula volume is mounted.\n"
758 "If this is not a blank tape, try unmounting and remounting the Volume.\n"),
761 } else if (dev->is_unmountable()) {
763 dir->fsend(_("3002 Device %s is mounted.\n"),
766 dir->fsend(_("3907 %s"), dev->bstrerror());
768 } else { /* must be file */
769 dir->fsend(_("3906 File device %s is always mounted.\n"),
771 pthread_cond_broadcast(&dev->wait_next_vol);
772 Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)dcr->jcr->JobId);
773 pthread_cond_broadcast(&wait_device_release);
778 dir->fsend(_("3905 Bizarre wait state %d\n"), dev->blocked());
784 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
787 pm_strcpy(jcr->errmsg, dir->msg);
788 dir->fsend(_("3909 Error scanning mount command: %s\n"), jcr->errmsg);
790 dir->signal(BNET_EOD);
795 * unmount command from Director
797 static bool unmount_cmd(JCR *jcr)
800 BSOCK *dir = jcr->dir_bsock;
805 if (sscanf(dir->msg, "unmount %127s drive=%d", devname.c_str(), &drive) == 2) {
806 dcr = find_device(jcr, devname, drive);
809 dev->dlock(); /* Use P to avoid indefinite block */
810 if (!dev->is_open()) {
811 if (!dev->is_busy()) {
812 unload_autochanger(dcr, -1);
814 if (dev->is_unmountable()) {
815 if (dev->unmount(0)) {
816 dir->fsend(_("3002 Device %s unmounted.\n"),
819 dir->fsend(_("3907 %s"), dev->bstrerror());
822 Dmsg0(90, "Device already unmounted\n");
823 dir->fsend(_("3901 Device %s is already unmounted.\n"),
826 } else if (dev->blocked() == BST_WAITING_FOR_SYSOP) {
827 Dmsg2(90, "%d waiter dev_block=%d. doing unmount\n", dev->num_waiting,
829 if (!unload_autochanger(dcr, -1)) {
830 /* ***FIXME**** what is this ???? */
834 if (dev->is_unmountable() && !dev->unmount(0)) {
835 dir->fsend(_("3907 %s"), dev->bstrerror());
837 dev->set_blocked(BST_UNMOUNTED_WAITING_FOR_SYSOP);
838 dir->fsend(_("3001 Device %s unmounted.\n"),
842 } else if (dev->blocked() == BST_DOING_ACQUIRE) {
843 dir->fsend(_("3902 Device %s is busy in acquire.\n"),
846 } else if (dev->blocked() == BST_WRITING_LABEL) {
847 dir->fsend(_("3903 Device %s is being labeled.\n"),
850 } else if (dev->is_busy()) {
851 send_dir_busy_message(dir, dev);
852 } else { /* device not being used */
853 Dmsg0(90, "Device not in use, unmounting\n");
854 /* On FreeBSD, I am having ASSERT() failures in block_device()
855 * and I can only imagine that the thread id that we are
856 * leaving in no_wait_id is being re-used. So here,
857 * we simply do it by hand. Gross, but a solution.
859 /* block_device(dev, BST_UNMOUNTED); replace with 2 lines below */
860 dev->set_blocked(BST_UNMOUNTED);
861 clear_thread_id(dev->no_wait_id);
862 if (!unload_autochanger(dcr, -1)) {
866 if (dev->is_unmountable() && !dev->unmount(0)) {
867 dir->fsend(_("3907 %s"), dev->bstrerror());
869 dir->fsend(_("3002 Device %s unmounted.\n"),
876 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
879 /* NB dir->msg gets clobbered in bnet_fsend, so save command */
880 pm_strcpy(jcr->errmsg, dir->msg);
881 dir->fsend(_("3907 Error scanning unmount command: %s\n"), jcr->errmsg);
883 dir->signal(BNET_EOD);
889 * The truncate command will recycle a volume. The director can call this
890 * after purging a volume so that disk space will not be wasted. Only useful
891 * for File Storage, of course.
894 * It is currently disabled
896 static bool action_on_purge_cmd(JCR *jcr)
898 BSOCK *dir = jcr->dir_bsock;
900 char devname[MAX_NAME_LENGTH];
901 char volumename[MAX_NAME_LENGTH];
904 /* TODO: Need to find a free device and ask for slot to the director */
906 "action_on_purge %127s vol=%127s action=%d",
907 devname, volumename, &action)!= 5)
909 dir->fsend(_("3916 Error scanning action_on_purge command\n"));
912 unbash_spaces(volumename);
913 unbash_spaces(devname);
915 /* Check if action is correct */
916 if (action & AOP_TRUNCTATE) {
922 dir->signal(BNET_EOD);
928 * Release command from Director. This rewinds the device and if
929 * configured does a offline and ensures that Bacula will
930 * re-read the label of the tape before continuing. This gives
931 * the operator the chance to change the tape anytime before the
934 static bool release_cmd(JCR *jcr)
937 BSOCK *dir = jcr->dir_bsock;
942 if (sscanf(dir->msg, "release %127s drive=%d", devname.c_str(), &drive) == 2) {
943 dcr = find_device(jcr, devname, drive);
946 dev->dlock(); /* Use P to avoid indefinite block */
947 if (!dev->is_open()) {
948 if (!dev->is_busy()) {
949 unload_autochanger(dcr, -1);
951 Dmsg0(90, "Device already released\n");
952 dir->fsend(_("3921 Device %s already released.\n"),
955 } else if (dev->blocked() == BST_WAITING_FOR_SYSOP) {
956 Dmsg2(90, "%d waiter dev_block=%d.\n", dev->num_waiting,
958 unload_autochanger(dcr, -1);
959 dir->fsend(_("3922 Device %s waiting for sysop.\n"),
962 } else if (dev->blocked() == BST_UNMOUNTED_WAITING_FOR_SYSOP) {
963 Dmsg2(90, "%d waiter dev_block=%d. doing unmount\n", dev->num_waiting,
965 dir->fsend(_("3922 Device %s waiting for mount.\n"),
968 } else if (dev->blocked() == BST_DOING_ACQUIRE) {
969 dir->fsend(_("3923 Device %s is busy in acquire.\n"),
972 } else if (dev->blocked() == BST_WRITING_LABEL) {
973 dir->fsend(_("3914 Device %s is being labeled.\n"),
976 } else if (dev->is_busy()) {
977 send_dir_busy_message(dir, dev);
978 } else { /* device not being used */
979 Dmsg0(90, "Device not in use, releasing\n");
980 dcr->release_volume();
981 dir->fsend(_("3022 Device %s released.\n"),
987 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
990 /* NB dir->msg gets clobbered in bnet_fsend, so save command */
991 pm_strcpy(jcr->errmsg, dir->msg);
992 dir->fsend(_("3927 Error scanning release command: %s\n"), jcr->errmsg);
994 dir->signal(BNET_EOD);
998 static pthread_mutex_t bsr_mutex = PTHREAD_MUTEX_INITIALIZER;
999 static uint32_t bsr_uniq = 0;
1001 static bool get_bootstrap_file(JCR *jcr, BSOCK *sock)
1003 POOLMEM *fname = get_pool_memory(PM_FNAME);
1007 if (jcr->RestoreBootstrap) {
1008 unlink(jcr->RestoreBootstrap);
1009 free_pool_memory(jcr->RestoreBootstrap);
1013 Mmsg(fname, "%s/%s.%s.%d.bootstrap", me->working_directory, me->hdr.name,
1014 jcr->Job, bsr_uniq);
1016 Dmsg1(400, "bootstrap=%s\n", fname);
1017 jcr->RestoreBootstrap = fname;
1018 bs = fopen(fname, "a+b"); /* create file */
1021 Jmsg(jcr, M_FATAL, 0, _("Could not create bootstrap file %s: ERR=%s\n"),
1022 jcr->RestoreBootstrap, be.bstrerror());
1025 Dmsg0(10, "=== Bootstrap file ===\n");
1026 while (sock->recv() >= 0) {
1027 Dmsg1(10, "%s", sock->msg);
1028 fputs(sock->msg, bs);
1031 Dmsg0(10, "=== end bootstrap file ===\n");
1032 jcr->bsr = parse_bsr(jcr, jcr->RestoreBootstrap);
1034 Jmsg(jcr, M_FATAL, 0, _("Error parsing bootstrap file.\n"));
1037 if (debug_level >= 10) {
1038 dump_bsr(jcr->bsr, true);
1040 /* If we got a bootstrap, we are reading, so create read volume list */
1041 create_restore_volume_list(jcr);
1045 unlink(jcr->RestoreBootstrap);
1046 free_pool_memory(jcr->RestoreBootstrap);
1047 jcr->RestoreBootstrap = NULL;
1049 sock->fsend(ERROR_bootstrap);
1052 return sock->fsend(OK_bootstrap);
1055 static bool bootstrap_cmd(JCR *jcr)
1057 return get_bootstrap_file(jcr, jcr->dir_bsock);
1061 * Autochanger command from Director
1063 static bool changer_cmd(JCR *jcr)
1066 BSOCK *dir = jcr->dir_bsock;
1069 const char *cmd = NULL;
1072 * A safe_cmd may call autochanger script but does not load/unload
1073 * slots so it can be done at the same time that the drive is open.
1075 bool safe_cmd = false;
1077 if (sscanf(dir->msg, "autochanger listall %127s", devname.c_str()) == 1) {
1079 safe_cmd = ok = true;
1080 } else if (sscanf(dir->msg, "autochanger list %127s", devname.c_str()) == 1) {
1082 safe_cmd = ok = true;
1083 } else if (sscanf(dir->msg, "autochanger slots %127s", devname.c_str()) == 1) {
1085 safe_cmd = ok = true;
1086 } else if (sscanf(dir->msg, "autochanger drives %127s", devname.c_str()) == 1) {
1088 safe_cmd = ok = true;
1091 dcr = find_device(jcr, devname, -1);
1094 dev->dlock(); /* Use P to avoid indefinite block */
1095 if (!dev->device->changer_res) {
1096 dir->fsend(_("3995 Device %s is not an autochanger.\n"),
1098 /* Under certain "safe" conditions, we can steal the lock */
1099 } else if (safe_cmd || !dev->is_open() || dev->can_steal_lock()) {
1100 autochanger_cmd(dcr, dir, cmd);
1101 } else if (dev->is_busy() || dev->is_blocked()) {
1102 send_dir_busy_message(dir, dev);
1103 } else { /* device not being used */
1104 autochanger_cmd(dcr, dir, cmd);
1109 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
1111 } else { /* error on scanf */
1112 pm_strcpy(jcr->errmsg, dir->msg);
1113 dir->fsend(_("3908 Error scanning autocharger drives/list/slots command: %s\n"),
1116 dir->signal(BNET_EOD);
1121 * Read and return the Volume label
1123 static bool readlabel_cmd(JCR *jcr)
1126 BSOCK *dir = jcr->dir_bsock;
1132 if (sscanf(dir->msg, "readlabel %127s Slot=%d drive=%d", devname.c_str(),
1133 &Slot, &drive) == 3) {
1134 dcr = find_device(jcr, devname, drive);
1137 dev->dlock(); /* Use P to avoid indefinite block */
1138 if (!dev->is_open()) {
1139 read_volume_label(jcr, dcr, dev, Slot);
1141 /* Under certain "safe" conditions, we can steal the lock */
1142 } else if (dev->can_steal_lock()) {
1143 read_volume_label(jcr, dcr, dev, Slot);
1144 } else if (dev->is_busy() || dev->is_blocked()) {
1145 send_dir_busy_message(dir, dev);
1146 } else { /* device not being used */
1147 read_volume_label(jcr, dcr, dev, Slot);
1152 dir->fsend(_("3999 Device \"%s\" not found or could not be opened.\n"), devname.c_str());
1155 pm_strcpy(jcr->errmsg, dir->msg);
1156 dir->fsend(_("3909 Error scanning readlabel command: %s\n"), jcr->errmsg);
1158 dir->signal(BNET_EOD);
1164 * Read the tape label
1166 * Enter with the mutex set
1168 static void read_volume_label(JCR *jcr, DCR *dcr, DEVICE *dev, int Slot)
1170 BSOCK *dir = jcr->dir_bsock;
1174 steal_device_lock(dev, &hold, BST_WRITING_LABEL);
1176 if (!try_autoload_device(jcr, dcr, Slot, "")) {
1177 goto bail_out; /* error */
1180 dev->clear_labeled(); /* force read of label */
1181 switch (read_dev_volume_label(dcr)) {
1183 /* DO NOT add quotes around the Volume name. It is scanned in the DIR */
1184 dir->fsend(_("3001 Volume=%s Slot=%d\n"), dev->VolHdr.VolumeName, Slot);
1185 Dmsg1(100, "Volume: %s\n", dev->VolHdr.VolumeName);
1188 dir->fsend(_("3902 Cannot mount Volume on Storage Device %s because:\n%s"),
1189 dev->print_name(), jcr->errmsg);
1194 give_back_device_lock(dev, &hold);
1198 static bool try_autoload_device(JCR *jcr, DCR *dcr, int slot, const char *VolName)
1200 BSOCK *dir = jcr->dir_bsock;
1202 bstrncpy(dcr->VolumeName, VolName, sizeof(dcr->VolumeName));
1203 dcr->VolCatInfo.Slot = slot;
1204 dcr->VolCatInfo.InChanger = slot > 0;
1205 if (autoload_device(dcr, 0, dir) < 0) { /* autoload if possible */
1211 static void send_dir_busy_message(BSOCK *dir, DEVICE *dev)
1213 if (dev->is_blocked()) {
1214 switch (dev->blocked()) {
1216 dir->fsend(_("3931 Device %s is BLOCKED. user unmounted.\n"),
1219 case BST_UNMOUNTED_WAITING_FOR_SYSOP:
1220 dir->fsend(_("3932 Device %s is BLOCKED. user unmounted during wait for media/mount.\n"),
1223 case BST_WAITING_FOR_SYSOP:
1224 dir->fsend(_("3933 Device %s is BLOCKED waiting for media.\n"),
1227 case BST_DOING_ACQUIRE:
1228 dir->fsend(_("3934 Device %s is being initialized.\n"),
1231 case BST_WRITING_LABEL:
1232 dir->fsend(_("3935 Device %s is blocked labeling a Volume.\n"),
1236 dir->fsend(_("3935 Device %s is blocked for unknown reason.\n"),
1240 } else if (dev->can_read()) {
1241 dir->fsend(_("3936 Device %s is busy reading.\n"),
1242 dev->print_name());;
1244 dir->fsend(_("3937 Device %s is busy with %d writer(s).\n"),
1245 dev->print_name(), dev->num_writers);