2 Bacula® - The Network Backup Solution
4 Copyright (C) 2000-2007 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 John Walker.
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 * Job control and execution for Storage Daemon
40 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
42 /* Imported variables */
43 extern uint32_t VolSessionTime;
45 /* Imported functions */
46 extern uint32_t newVolSessionId();
47 extern bool do_mac(JCR *jcr);
49 /* Requests from the Director daemon */
50 static char jobcmd[] = "JobId=%d job=%127s job_name=%127s client_name=%127s "
51 "type=%d level=%d FileSet=%127s NoAttr=%d SpoolAttr=%d FileSetMD5=%127s "
52 "SpoolData=%d WritePartAfterJob=%d PreferMountedVols=%d\n";
55 /* Responses sent to Director daemon */
56 static char OKjob[] = "3000 OK Job SDid=%u SDtime=%u Authorization=%s\n";
57 static char BAD_job[] = "3915 Bad Job command. stat=%d CMD: %s\n";
58 //static char OK_query[] = "3001 OK query\n";
59 //static char NO_query[] = "3918 Query failed\n";
60 //static char BAD_query[] = "3917 Bad query command: %s\n";
63 * Director requests us to start a job
64 * Basic tasks done here:
65 * - We pickup the JobId to be run from the Director.
66 * - We pickup the device, media, and pool from the Director
67 * - Wait for a connection from the File Daemon (FD)
68 * - Accept commands from the FD (i.e. run the job)
69 * - Return when the connection is terminated or
72 bool job_cmd(JCR *jcr)
76 BSOCK *dir = jcr->dir_bsock;
77 POOL_MEM job_name, client_name, job, fileset_name, fileset_md5;
78 int JobType, level, spool_attributes, no_attributes, spool_data;
79 int write_part_after_job, PreferMountedVols;
84 * Get JobId and permissions from Director
86 Dmsg1(100, "<dird: %s", dir->msg);
87 stat = sscanf(dir->msg, jobcmd, &JobId, job.c_str(), job_name.c_str(),
89 &JobType, &level, fileset_name.c_str(), &no_attributes,
90 &spool_attributes, fileset_md5.c_str(), &spool_data,
91 &write_part_after_job, &PreferMountedVols);
93 pm_strcpy(jcr->errmsg, dir->msg);
94 dir->fsend(BAD_job, stat, jcr->errmsg);
95 Dmsg1(100, ">dird: %s", dir->msg);
96 set_jcr_job_status(jcr, JS_ErrorTerminated);
100 * Since this job could be rescheduled, we
101 * check to see if we have it already. If so
102 * free the old jcr and use the new one.
104 ojcr = get_jcr_by_full_name(job.c_str());
105 if (ojcr && !ojcr->authenticated) {
106 Dmsg2(100, "Found ojcr=0x%x Job %s\n", (unsigned)(long)ojcr, job.c_str());
110 jcr->VolSessionId = newVolSessionId();
111 jcr->VolSessionTime = VolSessionTime;
112 bstrncpy(jcr->Job, job, sizeof(jcr->Job));
113 unbash_spaces(job_name);
114 jcr->job_name = get_pool_memory(PM_NAME);
115 pm_strcpy(jcr->job_name, job_name);
116 unbash_spaces(client_name);
117 jcr->client_name = get_pool_memory(PM_NAME);
118 pm_strcpy(jcr->client_name, client_name);
119 unbash_spaces(fileset_name);
120 jcr->fileset_name = get_pool_memory(PM_NAME);
121 pm_strcpy(jcr->fileset_name, fileset_name);
122 jcr->JobType = JobType;
123 jcr->JobLevel = level;
124 jcr->no_attributes = no_attributes;
125 jcr->spool_attributes = spool_attributes;
126 jcr->spool_data = spool_data;
127 jcr->write_part_after_job = write_part_after_job;
128 jcr->fileset_md5 = get_pool_memory(PM_NAME);
129 pm_strcpy(jcr->fileset_md5, fileset_md5);
130 jcr->PreferMountedVols = PreferMountedVols;
132 jcr->authenticated = false;
135 * Pass back an authorization key for the File daemon
137 make_session_key(auth_key, NULL, 1);
138 dir->fsend(OKjob, jcr->VolSessionId, jcr->VolSessionTime, auth_key);
139 if (debug_level == 3) {
140 Dmsg2(000, ">dird jid=%u: %s", (uint32_t)jcr->JobId, dir->msg);
142 Dmsg2(100, ">dird jid=%u: %s", (uint32_t)jcr->JobId, dir->msg);
143 jcr->sd_auth_key = bstrdup(auth_key);
144 memset(auth_key, 0, sizeof(auth_key));
145 generate_daemon_event(jcr, "JobStart");
149 bool run_cmd(JCR *jcr)
153 struct timespec timeout;
157 Dmsg1(200, "Run_cmd: %s\n", jcr->dir_bsock->msg);
158 /* The following jobs don't need the FD */
159 switch (jcr->JobType) {
163 jcr->authenticated = true;
168 set_jcr_job_status(jcr, JS_WaitFD); /* wait for FD to connect */
169 dir_send_job_status(jcr);
171 gettimeofday(&tv, &tz);
172 timeout.tv_nsec = tv.tv_usec * 1000;
173 timeout.tv_sec = tv.tv_sec + me->client_wait;
175 Dmsg2(100, "%s waiting %d sec for FD to contact SD\n",
176 jcr->Job, (int)me->client_wait);
178 * Wait for the File daemon to contact us to start the Job,
179 * when he does, we will be released, unless the 30 minutes
183 for ( ; !job_canceled(jcr); ) {
184 errstat = pthread_cond_timedwait(&jcr->job_start_wait, &mutex, &timeout);
185 if (errstat == 0 || errstat == ETIMEDOUT) {
191 if (debug_level == 3) {
192 Dmsg1(000, "jid=%u Zap sd_auth_key\n", (uint32_t)jcr->JobId);
194 memset(jcr->sd_auth_key, 0, strlen(jcr->sd_auth_key));
196 if (jcr->authenticated && !job_canceled(jcr)) {
197 Dmsg1(100, "Running job %s\n", jcr->Job);
198 run_job(jcr); /* Run the job */
204 * After receiving a connection (in dircmd.c) if it is
205 * from the File daemon, this routine is called.
207 void handle_filed_connection(BSOCK *fd, char *job_name)
211 bmicrosleep(0, 50000); /* wait 50 millisecs */
212 if (!(jcr=get_jcr_by_full_name(job_name))) {
213 Jmsg1(NULL, M_FATAL, 0, _("FD connect failed: Job name not found: %s\n"), job_name);
214 Dmsg1(100, "Job name not found: %s\n", job_name);
218 jcr->file_bsock = fd;
219 jcr->file_bsock->set_jcr(jcr);
221 Dmsg1(110, "Found Job %s\n", job_name);
223 if (jcr->authenticated) {
224 Jmsg2(jcr, M_FATAL, 0, _("Hey!!!! JobId %u Job %s already authenticated.\n"),
225 (uint32_t)jcr->JobId, jcr->Job);
231 * Authenticate the File daemon
233 if (debug_level == 3) {
234 Dmsg2(000, "jid=%u sd_auth_key=%s\n", (uint32_t)jcr->JobId, jcr->sd_auth_key);
236 if (jcr->authenticated || !authenticate_filed(jcr)) {
237 Dmsg1(100, "Authentication failed Job %s\n", jcr->Job);
238 Jmsg(jcr, M_FATAL, 0, _("Unable to authenticate File daemon\n"));
240 jcr->authenticated = true;
241 Dmsg2(110, "OK Authentication jid=%u Job %s\n", (uint32_t)jcr->JobId, jcr->Job);
244 if (!jcr->authenticated) {
245 set_jcr_job_status(jcr, JS_ErrorTerminated);
247 pthread_cond_signal(&jcr->job_start_wait); /* wake waiting job */
255 * Query Device command from Director
256 * Sends Storage Daemon's information on the device to the
257 * caller (presumably the Director).
258 * This command always returns "true" so that the line is
259 * not closed on an error.
262 bool query_cmd(JCR *jcr)
264 POOL_MEM dev_name, VolumeName, MediaType, ChangerName;
265 BSOCK *dir = jcr->dir_bsock;
267 AUTOCHANGER *changer;
270 Dmsg1(100, "Query_cmd: %s", dir->msg);
271 ok = sscanf(dir->msg, query_device, dev_name.c_str()) == 1;
272 Dmsg1(100, "<dird: %s\n", dir->msg);
274 unbash_spaces(dev_name);
275 foreach_res(device, R_DEVICE) {
276 /* Find resource, and make sure we were able to open it */
277 if (strcmp(dev_name.c_str(), device->hdr.name) == 0) {
279 device->dev = init_dev(jcr, device);
284 ok = dir_update_device(jcr, device->dev);
286 ok = dir->fsend(OK_query);
288 dir->fsend(NO_query);
293 foreach_res(changer, R_AUTOCHANGER) {
294 /* Find resource, and make sure we were able to open it */
295 if (strcmp(dev_name.c_str(), changer->hdr.name) == 0) {
296 if (!changer->device || changer->device->size() == 0) {
297 continue; /* no devices */
299 ok = dir_update_changer(jcr, changer);
301 ok = dir->fsend(OK_query);
303 dir->fsend(NO_query);
308 /* If we get here, the device/autochanger was not found */
309 unbash_spaces(dir->msg);
310 pm_strcpy(jcr->errmsg, dir->msg);
311 dir->fsend(NO_device, dev_name.c_str());
312 Dmsg1(100, ">dird: %s\n", dir->msg);
314 unbash_spaces(dir->msg);
315 pm_strcpy(jcr->errmsg, dir->msg);
316 dir->fsend(BAD_query, jcr->errmsg);
317 Dmsg1(100, ">dird: %s\n", dir->msg);
327 * Destroy the Job Control Record and associated
328 * resources (sockets).
330 void stored_free_jcr(JCR *jcr)
332 Dmsg1(900, "stored_free_jcr JobId=%u\n", jcr->JobId);
333 if (jcr->file_bsock) {
334 jcr->file_bsock->close();
335 jcr->file_bsock = NULL;
338 free_pool_memory(jcr->job_name);
340 if (jcr->client_name) {
341 free_memory(jcr->client_name);
342 jcr->client_name = NULL;
344 if (jcr->fileset_name) {
345 free_memory(jcr->fileset_name);
347 if (jcr->fileset_md5) {
348 free_memory(jcr->fileset_md5);
354 if (jcr->RestoreBootstrap) {
355 unlink(jcr->RestoreBootstrap);
356 free_pool_memory(jcr->RestoreBootstrap);
357 jcr->RestoreBootstrap = NULL;
359 if (jcr->next_dev || jcr->prev_dev) {
360 Emsg0(M_FATAL, 0, _("In free_jcr(), but still attached to device!!!!\n"));
362 pthread_cond_destroy(&jcr->job_start_wait);
368 /* Avoid a double free */
369 if (jcr->dcr == jcr->read_dcr) {
370 jcr->read_dcr = NULL;
377 free_dcr(jcr->read_dcr);
378 jcr->read_dcr = NULL;
381 if (jcr->read_store) {
383 foreach_alist(store, jcr->read_store) {
384 delete store->device;
387 delete jcr->read_store;
388 jcr->read_store = NULL;
390 if (jcr->write_store) {
392 foreach_alist(store, jcr->write_store) {
393 delete store->device;
396 delete jcr->write_store;
397 jcr->write_store = NULL;