3 * Bacula Director -- backup.c -- responsible for doing backup jobs
5 * Kern Sibbald, March MM
7 * This routine is called as a thread. It may not yet be totally
10 * Basic tasks done here:
11 * Open DB and create records for this job.
12 * Open Message Channel with Storage daemon to tell him a job will be starting.
13 * Open connection with File daemon and pass him commands
15 * When the File daemon finishes the job, update the DB.
21 Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
23 This program is free software; you can redistribute it and/or
24 modify it under the terms of the GNU General Public License as
25 published by the Free Software Foundation; either version 2 of
26 the License, or (at your option) any later version.
28 This program is distributed in the hope that it will be useful,
29 but WITHOUT ANY WARRANTY; without even the implied warranty of
30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
31 General Public License for more details.
33 You should have received a copy of the GNU General Public
34 License along with this program; if not, write to the Free
35 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
44 /* Commands sent to File daemon */
45 static char backupcmd[] = "backup\n";
46 static char storaddr[] = "storage address=%s port=%d\n";
47 static char levelcmd[] = "level = %s%s\n";
49 /* Responses received from File daemon */
50 static char OKbackup[] = "2000 OK backup\n";
51 static char OKstore[] = "2000 OK storage\n";
52 static char OKlevel[] = "2000 OK level\n";
54 /* Forward referenced functions */
55 static void backup_cleanup(JCR *jcr, int TermCode, char *since);
56 static int wait_for_job_termination(JCR *jcr);
58 /* External functions */
61 * Do a backup of the specified FileSet
63 * Returns: 0 on failure
66 int do_backup(JCR *jcr)
68 char since[MAXSTRING];
76 if (!get_or_create_client_record(jcr)) {
77 Jmsg(jcr, M_ERROR, 0, _("Could not get/create Client record. ERR=%s\n"),
78 db_strerror(jcr->db));
83 * Get or Create FileSet record
85 memset(&fsr, 0, sizeof(fsr));
86 strcpy(fsr.FileSet, jcr->fileset->hdr.name);
87 if (jcr->fileset->have_MD5) {
88 struct MD5Context md5c;
89 unsigned char signature[16];
90 memcpy(&md5c, &jcr->fileset->md5c, sizeof(md5c));
91 MD5Final(signature, &md5c);
92 bin_to_base64(fsr.MD5, (char *)signature, 16); /* encode 16 bytes */
94 Jmsg(jcr, M_WARNING, 0, _("FileSet MD5 signature not found.\n"));
96 if (!db_create_fileset_record(jcr->db, &fsr)) {
97 Jmsg(jcr, M_ERROR, 0, _("Could not create FileSet record. ERR=%s\n"),
98 db_strerror(jcr->db));
101 jcr->jr.FileSetId = fsr.FileSetId;
102 Dmsg2(9, "Created FileSet %s record %d\n", jcr->fileset->hdr.name,
106 * FULL backup job to get the time/date for a
107 * differential or incremental save.
109 jcr->stime = get_pool_memory(PM_MESSAGE);
112 switch (jcr->JobLevel) {
115 /* Look up start time of last job */
117 if (!db_find_job_start_time(jcr->db, &jcr->jr, jcr->stime)) {
118 Jmsg(jcr, M_INFO, 0, _("Last FULL backup time not found. Doing FULL backup.\n"));
119 jcr->JobLevel = jcr->jr.Level = L_FULL;
121 strcpy(since, ", since=");
122 strcat(since, jcr->stime);
124 Dmsg1(15, "Last start time = %s\n", jcr->stime);
128 jcr->jr.JobId = jcr->JobId;
129 jcr->jr.StartTime = jcr->start_time;
130 if (!db_update_job_start_record(jcr->db, &jcr->jr)) {
131 Jmsg(jcr, M_ERROR, 0, "%s", db_strerror(jcr->db));
135 jcr->fname = (char *) get_pool_memory(PM_FNAME);
137 /* Print Job Start message */
138 Jmsg(jcr, M_INFO, 0, _("Start Backup JobId %d, Job=%s\n"),
139 jcr->JobId, jcr->Job);
142 * Get the Pool record
144 memset(&pr, 0, sizeof(pr));
145 strcpy(pr.Name, jcr->pool->hdr.name);
146 while (!db_get_pool_record(jcr->db, &pr)) { /* get by Name */
147 /* Try to create the pool */
148 if (create_pool(jcr->db, jcr->pool) < 0) {
149 Jmsg(jcr, M_FATAL, 0, _("Pool %s not in database. %s"), pr.Name,
150 db_strerror(jcr->db));
153 Jmsg(jcr, M_INFO, 0, _("Pool %s created in database.\n"), pr.Name);
156 jcr->PoolId = pr.PoolId; /****FIXME**** this can go away */
157 jcr->jr.PoolId = pr.PoolId;
160 * Open a message channel connection with the Storage
161 * daemon. This is to let him know that our client
162 * will be contacting him for a backup session.
165 Dmsg0(10, "Open connection with storage daemon\n");
166 jcr->JobStatus = JS_Blocked;
168 * Start conversation with Storage daemon
170 if (!connect_to_storage_daemon(jcr, 10, SDConnectTimeout, 1)) {
174 * Now start a job with the Storage daemon
176 if (!start_storage_daemon_job(jcr)) {
180 * Now start a Storage daemon message thread
182 if (!start_storage_daemon_message_thread(jcr)) {
185 Dmsg0(50, "Storage daemon connection OK\n");
187 jcr->JobStatus = JS_Blocked;
188 if (!connect_to_file_daemon(jcr, 10, FDConnectTimeout, 1)) {
192 jcr->JobStatus = JS_Running;
193 fd = jcr->file_bsock;
195 if (!send_include_list(jcr)) {
199 if (!send_exclude_list(jcr)) {
204 * send Storage daemon address to the File daemon
206 if (jcr->store->SDDport == 0) {
207 jcr->store->SDDport = jcr->store->SDport;
209 bnet_fsend(fd, storaddr, jcr->store->address, jcr->store->SDDport);
210 if (!response(fd, OKstore, "Storage")) {
215 * Send Level command to File daemon
217 switch (jcr->JobLevel) {
219 bnet_fsend(fd, levelcmd, "full", " ");
223 bnet_fsend(fd, levelcmd, "since ", jcr->stime);
224 free_pool_memory(jcr->stime);
229 Jmsg2(jcr, M_FATAL, 0, _("Unimplemented backup level %d %c\n"),
230 jcr->JobLevel, jcr->JobLevel);
233 Dmsg1(20, ">filed: %s", fd->msg);
234 if (!response(fd, OKlevel, "Level")) {
238 /* Send backup command */
239 bnet_fsend(fd, backupcmd);
240 if (!response(fd, OKbackup, "backup")) {
244 /* Pickup Job termination data */
245 stat = wait_for_job_termination(jcr);
246 backup_cleanup(jcr, stat, since);
251 free_pool_memory(jcr->stime);
254 backup_cleanup(jcr, JS_ErrorTerminated, since);
260 * NOTE! This is no longer really needed as the Storage
261 * daemon now passes this information directly
264 static int wait_for_job_termination(JCR *jcr)
267 BSOCK *fd = jcr->file_bsock;
269 jcr->JobStatus = JS_WaitFD;
270 /* Wait for Client to terminate */
271 while ((n = bget_msg(fd, 0)) > 0 && !job_cancelled(jcr)) {
272 /* get and discard Client output */
274 bnet_sig(fd, BNET_TERMINATE); /* tell Client we are terminating */
276 Jmsg(jcr, M_FATAL, 0, _("<filed: network error during BACKUP command. ERR=%s\n"),
280 wait_for_storage_daemon_termination(jcr);
283 return JS_ErrorTerminated;
285 return jcr->SDJobStatus;
289 * Release resources allocated during backup.
291 static void backup_cleanup(JCR *jcr, int TermCode, char *since)
293 char sdt[50], edt[50];
294 char ec1[30], ec2[30], ec3[30];
300 Dmsg0(100, "Enter backup_cleanup()\n");
301 memset(&mr, 0, sizeof(mr));
302 jcr->JobStatus = TermCode;
304 update_job_end_record(jcr); /* update database */
306 if (!db_get_job_record(jcr->db, &jcr->jr)) {
307 Jmsg(jcr, M_WARNING, 0, _("Error getting job record for stats: %s"),
308 db_strerror(jcr->db));
311 strcpy(mr.VolumeName, jcr->VolumeName);
312 if (!db_get_media_record(jcr->db, &mr)) {
313 Jmsg(jcr, M_WARNING, 0, _("Error getting Media record for stats: %s"),
314 db_strerror(jcr->db));
317 msg_type = M_INFO; /* by default INFO message */
320 term_msg = _("Backup OK");
323 case JS_ErrorTerminated:
324 term_msg = _("*** Backup Error ***");
325 msg_type = M_ERROR; /* Generate error message */
326 if (jcr->store_bsock) {
327 bnet_sig(jcr->store_bsock, BNET_TERMINATE);
328 pthread_cancel(jcr->SD_msg_chan);
332 term_msg = _("Backup Cancelled");
333 if (jcr->store_bsock) {
334 bnet_sig(jcr->store_bsock, BNET_TERMINATE);
335 pthread_cancel(jcr->SD_msg_chan);
339 term_msg = term_code;
340 sprintf(term_code, _("Inappropriate term code: %c\n"), TermCode);
343 bstrftime(sdt, sizeof(sdt), jcr->jr.StartTime);
344 bstrftime(edt, sizeof(edt), jcr->jr.EndTime);
345 if (!db_get_job_volume_names(jcr->db, jcr->jr.JobId, &jcr->VolumeName)) {
346 jcr->VolumeName[0] = 0; /* none */
349 Jmsg(jcr, msg_type, 0, _("%s\n\
353 Backup Level: %s%s\n\
359 Volume names(s): %s\n\
360 Volume Session Id: %d\n\
361 Volume Session Time: %d\n\
363 Termination: %s\n\n"),
367 jcr->fileset->hdr.name,
368 level_to_str(jcr->JobLevel), since,
369 jcr->client->hdr.name,
372 edit_uint64_with_commas(jcr->jr.JobBytes, ec1),
373 edit_uint64_with_commas(jcr->jr.JobFiles, ec2),
377 edit_uint64_with_commas(mr.VolBytes, ec3),
380 Dmsg0(100, "Leave backup_cleanup()\n");