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 bnet_fsend(dir, 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 bnet_fsend(dir, OKjob, jcr->VolSessionId, jcr->VolSessionTime, auth_key);
139 Dmsg1(100, ">dird: %s", dir->msg);
140 jcr->sd_auth_key = bstrdup(auth_key);
141 memset(auth_key, 0, sizeof(auth_key));
142 generate_daemon_event(jcr, "JobStart");
146 bool run_cmd(JCR *jcr)
150 struct timespec timeout;
154 Dmsg1(200, "Run_cmd: %s\n", jcr->dir_bsock->msg);
155 /* The following jobs don't need the FD */
156 switch (jcr->JobType) {
160 jcr->authenticated = true;
165 set_jcr_job_status(jcr, JS_WaitFD); /* wait for FD to connect */
166 dir_send_job_status(jcr);
168 gettimeofday(&tv, &tz);
169 timeout.tv_nsec = tv.tv_usec * 1000;
170 timeout.tv_sec = tv.tv_sec + me->client_wait;
172 Dmsg2(100, "%s waiting %d sec for FD to contact SD\n",
173 jcr->Job, (int)me->client_wait);
175 * Wait for the File daemon to contact us to start the Job,
176 * when he does, we will be released, unless the 30 minutes
180 for ( ;!job_canceled(jcr); ) {
181 errstat = pthread_cond_timedwait(&jcr->job_start_wait, &mutex, &timeout);
182 if (errstat == 0 || errstat == ETIMEDOUT) {
188 memset(jcr->sd_auth_key, 0, strlen(jcr->sd_auth_key));
190 if (jcr->authenticated && !job_canceled(jcr)) {
191 Dmsg1(100, "Running job %s\n", jcr->Job);
192 run_job(jcr); /* Run the job */
198 * After receiving a connection (in job.c) if it is
199 * from the File daemon, this routine is called.
201 void handle_filed_connection(BSOCK *fd, char *job_name)
205 bmicrosleep(0, 50000); /* wait 50 millisecs */
206 if (!(jcr=get_jcr_by_full_name(job_name))) {
207 Jmsg1(NULL, M_FATAL, 0, _("Job name not found: %s\n"), job_name);
208 Dmsg1(100, "Job name not found: %s\n", job_name);
212 jcr->file_bsock = fd;
213 jcr->file_bsock->set_jcr(jcr);
215 Dmsg1(110, "Found Job %s\n", job_name);
217 if (jcr->authenticated) {
218 Jmsg2(jcr, M_FATAL, 0, _("Hey!!!! JobId %u Job %s already authenticated.\n"),
219 jcr->JobId, jcr->Job);
225 * Authenticate the File daemon
227 if (jcr->authenticated || !authenticate_filed(jcr)) {
228 Dmsg1(100, "Authentication failed Job %s\n", jcr->Job);
229 Jmsg(jcr, M_FATAL, 0, _("Unable to authenticate File daemon\n"));
231 jcr->authenticated = true;
232 Dmsg1(110, "OK Authentication Job %s\n", jcr->Job);
235 if (!jcr->authenticated) {
236 set_jcr_job_status(jcr, JS_ErrorTerminated);
238 pthread_cond_signal(&jcr->job_start_wait); /* wake waiting job */
246 * Query Device command from Director
247 * Sends Storage Daemon's information on the device to the
248 * caller (presumably the Director).
249 * This command always returns "true" so that the line is
250 * not closed on an error.
253 bool query_cmd(JCR *jcr)
255 POOL_MEM dev_name, VolumeName, MediaType, ChangerName;
256 BSOCK *dir = jcr->dir_bsock;
258 AUTOCHANGER *changer;
261 Dmsg1(100, "Query_cmd: %s", dir->msg);
262 ok = sscanf(dir->msg, query_device, dev_name.c_str()) == 1;
263 Dmsg1(100, "<dird: %s\n", dir->msg);
265 unbash_spaces(dev_name);
266 foreach_res(device, R_DEVICE) {
267 /* Find resource, and make sure we were able to open it */
268 if (fnmatch(dev_name.c_str(), device->hdr.name, 0) == 0) {
270 device->dev = init_dev(jcr, device);
275 ok = dir_update_device(jcr, device->dev);
277 ok = bnet_fsend(dir, OK_query);
279 bnet_fsend(dir, NO_query);
284 foreach_res(changer, R_AUTOCHANGER) {
285 /* Find resource, and make sure we were able to open it */
286 if (fnmatch(dev_name.c_str(), changer->hdr.name, 0) == 0) {
287 if (!changer->device || changer->device->size() == 0) {
288 continue; /* no devices */
290 ok = dir_update_changer(jcr, changer);
292 ok = bnet_fsend(dir, OK_query);
294 bnet_fsend(dir, NO_query);
299 /* If we get here, the device/autochanger was not found */
300 unbash_spaces(dir->msg);
301 pm_strcpy(jcr->errmsg, dir->msg);
302 bnet_fsend(dir, NO_device, dev_name.c_str());
303 Dmsg1(100, ">dird: %s\n", dir->msg);
305 unbash_spaces(dir->msg);
306 pm_strcpy(jcr->errmsg, dir->msg);
307 bnet_fsend(dir, BAD_query, jcr->errmsg);
308 Dmsg1(100, ">dird: %s\n", dir->msg);
318 * Destroy the Job Control Record and associated
319 * resources (sockets).
321 void stored_free_jcr(JCR *jcr)
323 Dmsg1(900, "stored_free_jcr JobId=%u\n", jcr->JobId);
324 if (jcr->file_bsock) {
325 bnet_close(jcr->file_bsock);
326 jcr->file_bsock = NULL;
329 free_pool_memory(jcr->job_name);
331 if (jcr->client_name) {
332 free_memory(jcr->client_name);
333 jcr->client_name = NULL;
335 if (jcr->fileset_name) {
336 free_memory(jcr->fileset_name);
338 if (jcr->fileset_md5) {
339 free_memory(jcr->fileset_md5);
345 if (jcr->RestoreBootstrap) {
346 unlink(jcr->RestoreBootstrap);
347 free_pool_memory(jcr->RestoreBootstrap);
348 jcr->RestoreBootstrap = NULL;
350 if (jcr->next_dev || jcr->prev_dev) {
351 Emsg0(M_FATAL, 0, _("In free_jcr(), but still attached to device!!!!\n"));
353 pthread_cond_destroy(&jcr->job_start_wait);
359 /* Avoid a double free */
360 if (jcr->dcr == jcr->read_dcr) {
361 jcr->read_dcr = NULL;
368 free_dcr(jcr->read_dcr);
369 jcr->read_dcr = NULL;
372 if (jcr->read_store) {
374 foreach_alist(store, jcr->read_store) {
375 delete store->device;
378 delete jcr->read_store;
379 jcr->read_store = NULL;
381 if (jcr->write_store) {
383 foreach_alist(store, jcr->write_store) {
384 delete store->device;
387 delete jcr->write_store;
388 jcr->write_store = NULL;