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 plus additions
11 that are listed in the file LICENSE.
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;
153 Dmsg1(200, "Run_cmd: %s\n", jcr->dir_bsock->msg);
154 /* The following jobs don't need the FD */
155 switch (jcr->JobType) {
159 jcr->authenticated = true;
164 set_jcr_job_status(jcr, JS_WaitFD); /* wait for FD to connect */
165 dir_send_job_status(jcr);
167 gettimeofday(&tv, &tz);
168 timeout.tv_nsec = tv.tv_usec * 1000;
169 timeout.tv_sec = tv.tv_sec + me->client_wait;
171 Dmsg2(100, "%s waiting %d sec for FD to contact SD\n",
172 jcr->Job, (int)me->client_wait);
174 * Wait for the File daemon to contact us to start the Job,
175 * when he does, we will be released, unless the 30 minutes
179 for ( ;!job_canceled(jcr); ) {
180 errstat = pthread_cond_timedwait(&jcr->job_start_wait, &mutex, &timeout);
181 if (errstat == 0 || errstat == ETIMEDOUT) {
187 memset(jcr->sd_auth_key, 0, strlen(jcr->sd_auth_key));
189 if (jcr->authenticated && !job_canceled(jcr)) {
190 Dmsg1(100, "Running job %s\n", jcr->Job);
191 run_job(jcr); /* Run the job */
197 * After receiving a connection (in job.c) if it is
198 * from the File daemon, this routine is called.
200 void handle_filed_connection(BSOCK *fd, char *job_name)
204 bmicrosleep(0, 50000); /* wait 50 millisecs */
205 if (!(jcr=get_jcr_by_full_name(job_name))) {
206 Jmsg1(NULL, M_FATAL, 0, _("Job name not found: %s\n"), job_name);
207 Dmsg1(100, "Job name not found: %s\n", job_name);
211 jcr->file_bsock = fd;
212 jcr->file_bsock->set_jcr(jcr);
214 Dmsg1(110, "Found Job %s\n", job_name);
216 if (jcr->authenticated) {
217 Jmsg2(jcr, M_FATAL, 0, _("Hey!!!! JobId %u Job %s already authenticated.\n"),
218 jcr->JobId, jcr->Job);
224 * Authenticate the File daemon
226 if (jcr->authenticated || !authenticate_filed(jcr)) {
227 Dmsg1(100, "Authentication failed Job %s\n", jcr->Job);
228 Jmsg(jcr, M_FATAL, 0, _("Unable to authenticate File daemon\n"));
230 jcr->authenticated = true;
231 Dmsg1(110, "OK Authentication Job %s\n", jcr->Job);
234 if (!jcr->authenticated) {
235 set_jcr_job_status(jcr, JS_ErrorTerminated);
237 pthread_cond_signal(&jcr->job_start_wait); /* wake waiting job */
245 * Query Device command from Director
246 * Sends Storage Daemon's information on the device to the
247 * caller (presumably the Director).
248 * This command always returns "true" so that the line is
249 * not closed on an error.
252 bool query_cmd(JCR *jcr)
254 POOL_MEM dev_name, VolumeName, MediaType, ChangerName;
255 BSOCK *dir = jcr->dir_bsock;
257 AUTOCHANGER *changer;
260 Dmsg1(100, "Query_cmd: %s", dir->msg);
261 ok = sscanf(dir->msg, query_device, dev_name.c_str()) == 1;
262 Dmsg1(100, "<dird: %s\n", dir->msg);
264 unbash_spaces(dev_name);
265 foreach_res(device, R_DEVICE) {
266 /* Find resource, and make sure we were able to open it */
267 if (fnmatch(dev_name.c_str(), device->hdr.name, 0) == 0) {
269 device->dev = init_dev(jcr, device);
274 ok = dir_update_device(jcr, device->dev);
276 ok = bnet_fsend(dir, OK_query);
278 bnet_fsend(dir, NO_query);
283 foreach_res(changer, R_AUTOCHANGER) {
284 /* Find resource, and make sure we were able to open it */
285 if (fnmatch(dev_name.c_str(), changer->hdr.name, 0) == 0) {
286 if (!changer->device || changer->device->size() == 0) {
287 continue; /* no devices */
289 ok = dir_update_changer(jcr, changer);
291 ok = bnet_fsend(dir, OK_query);
293 bnet_fsend(dir, NO_query);
298 /* If we get here, the device/autochanger was not found */
299 unbash_spaces(dir->msg);
300 pm_strcpy(jcr->errmsg, dir->msg);
301 bnet_fsend(dir, NO_device, dev_name.c_str());
302 Dmsg1(100, ">dird: %s\n", dir->msg);
304 unbash_spaces(dir->msg);
305 pm_strcpy(jcr->errmsg, dir->msg);
306 bnet_fsend(dir, BAD_query, jcr->errmsg);
307 Dmsg1(100, ">dird: %s\n", dir->msg);
317 * Destroy the Job Control Record and associated
318 * resources (sockets).
320 void stored_free_jcr(JCR *jcr)
322 Dmsg1(900, "stored_free_jcr JobId=%u\n", jcr->JobId);
323 if (jcr->file_bsock) {
324 bnet_close(jcr->file_bsock);
325 jcr->file_bsock = NULL;
328 free_pool_memory(jcr->job_name);
330 if (jcr->client_name) {
331 free_memory(jcr->client_name);
332 jcr->client_name = NULL;
334 if (jcr->fileset_name) {
335 free_memory(jcr->fileset_name);
337 if (jcr->fileset_md5) {
338 free_memory(jcr->fileset_md5);
344 if (jcr->RestoreBootstrap) {
345 unlink(jcr->RestoreBootstrap);
346 free_pool_memory(jcr->RestoreBootstrap);
347 jcr->RestoreBootstrap = NULL;
349 if (jcr->next_dev || jcr->prev_dev) {
350 Emsg0(M_FATAL, 0, _("In free_jcr(), but still attached to device!!!!\n"));
352 pthread_cond_destroy(&jcr->job_start_wait);
363 free_dcr(jcr->read_dcr);
364 jcr->read_dcr = NULL;
367 if (jcr->read_store) {
369 foreach_alist(store, jcr->read_store) {
370 delete store->device;
373 delete jcr->read_store;
374 jcr->read_store = NULL;
376 if (jcr->write_store) {
378 foreach_alist(store, jcr->write_store) {
379 delete store->device;
382 delete jcr->write_store;
383 jcr->write_store = NULL;