2 Bacula® - The Network Backup Solution
4 Copyright (C) 2006-2011 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 three of the GNU Affero 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 Affero 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 * SD -- mac.c -- responsible for doing
30 * migration, archive, copy, and virtual backup jobs.
32 * Kern Sibbald, January MMVI
39 /* Import functions */
40 extern char Job_end[];
42 /* Forward referenced subroutines */
43 static bool record_cb(DCR *dcr, DEV_RECORD *rec);
47 * Read Data and send to File Daemon
48 * Returns: false on failure
54 BSOCK *dir = jcr->dir_bsock;
59 switch(jcr->getJobType()) {
70 Type = "Virtual Backup";
78 Dmsg0(20, "Start read data.\n");
80 if (!jcr->read_dcr || !jcr->dcr) {
81 Jmsg(jcr, M_FATAL, 0, _("Read and write devices not properly initialized.\n"));
84 Dmsg2(100, "read_dcr=%p write_dcr=%p\n", jcr->read_dcr, jcr->dcr);
86 if (jcr->NumReadVolumes == 0) {
87 Jmsg(jcr, M_FATAL, 0, _("No Volume names found for %s.\n"), Type);
91 Dmsg3(200, "Found %d volumes names for %s. First=%s\n", jcr->NumReadVolumes,
92 jcr->VolList->VolumeName, Type);
94 /* Ready devices for reading and writing */
95 if (!acquire_device_for_read(jcr->read_dcr) ||
96 !acquire_device_for_append(jcr->dcr)) {
97 jcr->setJobStatus(JS_ErrorTerminated);
101 Dmsg2(200, "===== After acquire pos %u:%u\n", jcr->dcr->dev->file, jcr->dcr->dev->block_num);
103 jcr->sendJobStatus(JS_Running);
105 begin_data_spool(jcr->dcr);
106 begin_attribute_spool(jcr);
108 jcr->dcr->VolFirstIndex = jcr->dcr->VolLastIndex = 0;
109 jcr->run_time = time(NULL);
110 set_start_vol_position(jcr->dcr);
113 ok = read_records(jcr->read_dcr, record_cb, mount_next_read_volume);
122 Dmsg1(100, "ok=%d\n", ok);
123 if (ok || dev->can_write()) {
124 /* Flush out final partial block of this session */
125 if (!write_block_to_device(jcr->dcr)) {
126 Jmsg2(jcr, M_FATAL, 0, _("Fatal append error on device %s: ERR=%s\n"),
127 dev->print_name(), dev->bstrerror());
128 Dmsg0(100, _("Set ok=FALSE after write_block_to_device.\n"));
131 Dmsg2(200, "Flush block to device pos %u:%u\n", dev->file, dev->block_num);
135 discard_data_spool(jcr->dcr);
137 /* Note: if commit is OK, the device will remain blocked */
138 commit_data_spool(jcr->dcr);
141 if (ok && dev->is_dvd()) {
142 ok = dvd_close_job(jcr->dcr); /* do DVD cleanup if any */
144 /* Release the device -- and send final Vol info to DIR */
145 release_device(jcr->dcr);
147 if (!ok || job_canceled(jcr)) {
148 discard_attribute_spool(jcr);
150 commit_attribute_spool(jcr);
155 if (!release_device(jcr->read_dcr)) {
160 jcr->sendJobStatus(); /* update director */
162 Dmsg0(30, "Done reading.\n");
163 jcr->end_time = time(NULL);
164 dequeue_messages(jcr); /* send any queued messages */
166 jcr->setJobStatus(JS_Terminated);
168 generate_daemon_event(jcr, "JobEnd");
169 generate_plugin_event(jcr, bsdEventJobEnd);
170 dir->fsend(Job_end, jcr->Job, jcr->JobStatus, jcr->JobFiles,
171 edit_uint64(jcr->JobBytes, ec1), jcr->JobErrors);
172 Dmsg4(100, Job_end, jcr->Job, jcr->JobStatus, jcr->JobFiles, ec1);
174 dir->signal(BNET_EOD); /* send EOD to Director daemon */
175 free_plugins(jcr); /* release instantiated plugins */
181 * Called here for each record from read_records()
182 * Returns: true if OK
185 static bool record_cb(DCR *dcr, DEV_RECORD *rec)
188 DEVICE *dev = jcr->dcr->dev;
189 char buf1[100], buf2[100];
192 Dmsg5(000, "on entry JobId=%d FI=%s SessId=%d Strm=%s len=%d\n",
194 FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
195 stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len);
197 /* If label and not for us, discard it */
198 if (rec->FileIndex < 0 && rec->match_stat <= 0) {
201 /* We want to write SOS_LABEL and EOS_LABEL discard all others */
202 switch (rec->FileIndex) {
207 return true; /* don't write vol labels */
209 // if (jcr->getJobType() == JT_BACKUP) {
211 * For normal migration jobs, FileIndex values are sequential because
212 * we are dealing with one job. However, for Vbackup (consolidation),
213 * we will be getting records from multiple jobs and writing them back
214 * out, so we need to ensure that the output FileIndex is sequential.
215 * We do so by detecting a FileIndex change and incrementing the
216 * JobFiles, which we then use as the output FileIndex.
218 if (rec->FileIndex >= 0) {
219 /* If something changed, increment FileIndex */
220 if (rec->VolSessionId != rec->last_VolSessionId ||
221 rec->VolSessionTime != rec->last_VolSessionTime ||
222 rec->FileIndex != rec->last_FileIndex) {
224 rec->last_VolSessionId = rec->VolSessionId;
225 rec->last_VolSessionTime = rec->VolSessionTime;
226 rec->last_FileIndex = rec->FileIndex;
228 rec->FileIndex = jcr->JobFiles; /* set sequential output FileIndex */
232 * Modify record SessionId and SessionTime to correspond to
235 rec->VolSessionId = jcr->VolSessionId;
236 rec->VolSessionTime = jcr->VolSessionTime;
237 Dmsg5(200, "before write JobId=%d FI=%s SessId=%d Strm=%s len=%d\n",
239 FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
240 stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len);
241 while (!write_record_to_block(jcr->dcr->block, rec)) {
242 Dmsg4(200, "!write_record_to_block blkpos=%u:%u len=%d rem=%d\n",
243 dev->file, dev->block_num, rec->data_len, rec->remainder);
244 if (!write_block_to_device(jcr->dcr)) {
245 Dmsg2(90, "Got write_block_to_dev error on device %s. %s\n",
246 dev->print_name(), dev->bstrerror());
247 Jmsg2(jcr, M_FATAL, 0, _("Fatal append error on device %s: ERR=%s\n"),
248 dev->print_name(), dev->bstrerror());
251 Dmsg2(200, "===== Wrote block new pos %u:%u\n", dev->file, dev->block_num);
254 rec->VolSessionId = rec->last_VolSessionId;
255 rec->VolSessionTime = rec->last_VolSessionTime;
256 if (rec->FileIndex < 0) {
257 return true; /* don't send LABELs to Dir */
259 jcr->JobBytes += rec->data_len; /* increment bytes this job */
260 Dmsg5(500, "wrote_record JobId=%d FI=%s SessId=%d Strm=%s len=%d\n",
262 FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
263 stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len);
265 send_attrs_to_dir(jcr, rec);