2 Bacula® - The Network Backup Solution
4 Copyright (C) 2006-2010 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->setJobStatus(JS_Running);
104 dir_send_job_status(jcr);
106 begin_data_spool(jcr->dcr);
107 begin_attribute_spool(jcr);
109 jcr->dcr->VolFirstIndex = jcr->dcr->VolLastIndex = 0;
110 jcr->run_time = time(NULL);
111 set_start_vol_position(jcr->dcr);
114 ok = read_records(jcr->read_dcr, record_cb, mount_next_read_volume);
123 Dmsg1(100, "ok=%d\n", ok);
124 if (ok || dev->can_write()) {
125 /* Flush out final partial block of this session */
126 if (!write_block_to_device(jcr->dcr)) {
127 Jmsg2(jcr, M_FATAL, 0, _("Fatal append error on device %s: ERR=%s\n"),
128 dev->print_name(), dev->bstrerror());
129 Dmsg0(100, _("Set ok=FALSE after write_block_to_device.\n"));
132 Dmsg2(200, "Flush block to device pos %u:%u\n", dev->file, dev->block_num);
136 discard_data_spool(jcr->dcr);
138 /* Note: if commit is OK, the device will remain blocked */
139 commit_data_spool(jcr->dcr);
142 if (ok && dev->is_dvd()) {
143 ok = dvd_close_job(jcr->dcr); /* do DVD cleanup if any */
145 /* Release the device -- and send final Vol info to DIR */
146 release_device(jcr->dcr);
148 if (!ok || job_canceled(jcr)) {
149 discard_attribute_spool(jcr);
151 commit_attribute_spool(jcr);
156 if (!release_device(jcr->read_dcr)) {
161 dir_send_job_status(jcr); /* update director */
163 Dmsg0(30, "Done reading.\n");
164 jcr->end_time = time(NULL);
165 dequeue_messages(jcr); /* send any queued messages */
167 jcr->setJobStatus(JS_Terminated);
169 generate_daemon_event(jcr, "JobEnd");
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 */
180 * Called here for each record from read_records()
181 * Returns: true if OK
184 static bool record_cb(DCR *dcr, DEV_RECORD *rec)
187 DEVICE *dev = jcr->dcr->dev;
188 char buf1[100], buf2[100];
191 Dmsg5(000, "on entry JobId=%d FI=%s SessId=%d Strm=%s len=%d\n",
193 FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
194 stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len);
196 /* If label and not for us, discard it */
197 if (rec->FileIndex < 0 && rec->match_stat <= 0) {
200 /* We want to write SOS_LABEL and EOS_LABEL discard all others */
201 switch (rec->FileIndex) {
206 return true; /* don't write vol labels */
208 // if (jcr->getJobType() == JT_BACKUP) {
210 * For normal migration jobs, FileIndex values are sequential because
211 * we are dealing with one job. However, for Vbackup (consolidation),
212 * we will be getting records from multiple jobs and writing them back
213 * out, so we need to ensure that the output FileIndex is sequential.
214 * We do so by detecting a FileIndex change and incrementing the
215 * JobFiles, which we then use as the output FileIndex.
217 if (rec->FileIndex >= 0) {
218 /* If something changed, increment FileIndex */
219 if (rec->VolSessionId != rec->last_VolSessionId ||
220 rec->VolSessionTime != rec->last_VolSessionTime ||
221 rec->FileIndex != rec->last_FileIndex) {
223 rec->last_VolSessionId = rec->VolSessionId;
224 rec->last_VolSessionTime = rec->VolSessionTime;
225 rec->last_FileIndex = rec->FileIndex;
227 rec->FileIndex = jcr->JobFiles; /* set sequential output FileIndex */
231 * Modify record SessionId and SessionTime to correspond to
234 rec->VolSessionId = jcr->VolSessionId;
235 rec->VolSessionTime = jcr->VolSessionTime;
236 Dmsg5(200, "before write JobId=%d FI=%s SessId=%d Strm=%s len=%d\n",
238 FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
239 stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len);
240 while (!write_record_to_block(jcr->dcr->block, rec)) {
241 Dmsg4(200, "!write_record_to_block blkpos=%u:%u len=%d rem=%d\n",
242 dev->file, dev->block_num, rec->data_len, rec->remainder);
243 if (!write_block_to_device(jcr->dcr)) {
244 Dmsg2(90, "Got write_block_to_dev error on device %s. %s\n",
245 dev->print_name(), dev->bstrerror());
246 Jmsg2(jcr, M_FATAL, 0, _("Fatal append error on device %s: ERR=%s\n"),
247 dev->print_name(), dev->bstrerror());
250 Dmsg2(200, "===== Wrote block new pos %u:%u\n", dev->file, dev->block_num);
253 rec->VolSessionId = rec->last_VolSessionId;
254 rec->VolSessionTime = rec->last_VolSessionTime;
255 if (rec->FileIndex < 0) {
256 return true; /* don't send LABELs to Dir */
258 jcr->JobBytes += rec->data_len; /* increment bytes this job */
259 Dmsg5(500, "wrote_record JobId=%d FI=%s SessId=%d Strm=%s len=%d\n",
261 FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
262 stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len);
264 send_attrs_to_dir(jcr, rec);