2 Bacula® - The Network Backup Solution
4 Copyright (C) 2000-2011 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 * Append code for Storage daemon
30 * Kern Sibbald, May MM
38 /* Responses sent to the File daemon */
39 static char OK_data[] = "3000 OK data\n";
40 static char OK_append[] = "3000 OK append data\n";
42 /* Forward referenced functions */
46 * Check if we can mark this job incomplete
49 void possible_incomplete_job(JCR *jcr, int32_t last_file_index)
52 * Note, here we decide if it is worthwhile to restart
53 * the Job at this point. For the moment, if at least
54 * 10 Files have been seen, which is good for testing, but
55 * for a production system, we probably want something like
56 * 100-1000 files, and some number of bytes of data.
58 * ****FIXME**** update this
60 if (last_file_index > 10) {
61 jcr->setJobStatus(JS_Incomplete);
65 * Append Data sent from File daemon
68 bool do_append_data(JCR *jcr)
71 int32_t file_index, stream, last_file_index;
72 BSOCK *fd = jcr->file_bsock;
75 char buf1[100], buf2[100];
82 Jmsg0(jcr, M_FATAL, 0, _("DCR is NULL!!!\n"));
87 Jmsg0(jcr, M_FATAL, 0, _("DEVICE is NULL!!!\n"));
91 Dmsg1(100, "Start append data. res=%d\n", dev->num_reserved());
93 memset(&rec, 0, sizeof(rec));
95 if (!fd->set_buffer_size(dcr->device->max_network_buffer_size, BNET_SETBUF_WRITE)) {
96 set_jcr_job_status(jcr, JS_ErrorTerminated);
97 Jmsg0(jcr, M_FATAL, 0, _("Unable to set network buffer size.\n"));
101 if (!acquire_device_for_append(dcr)) {
102 set_jcr_job_status(jcr, JS_ErrorTerminated);
106 set_jcr_job_status(jcr, JS_Running);
107 dir_send_job_status(jcr);
109 if (dev->VolCatInfo.VolCatName[0] == 0) {
110 Pmsg0(000, _("NULL Volume name. This shouldn't happen!!!\n"));
112 Dmsg1(50, "Begin append device=%s\n", dev->print_name());
114 begin_data_spool(dcr);
115 begin_attribute_spool(jcr);
117 Dmsg0(100, "Just after acquire_device_for_append\n");
118 if (dev->VolCatInfo.VolCatName[0] == 0) {
119 Pmsg0(000, _("NULL Volume name. This shouldn't happen!!!\n"));
122 * Write Begin Session Record
124 if (!write_session_label(dcr, SOS_LABEL)) {
125 Jmsg1(jcr, M_FATAL, 0, _("Write session label failed. ERR=%s\n"),
127 set_jcr_job_status(jcr, JS_ErrorTerminated);
130 if (dev->VolCatInfo.VolCatName[0] == 0) {
131 Pmsg0(000, _("NULL Volume name. This shouldn't happen!!!\n"));
134 /* Tell File daemon to send data */
135 if (!fd->fsend(OK_data)) {
137 Jmsg1(jcr, M_FATAL, 0, _("Network send error to FD. ERR=%s\n"),
138 be.bstrerror(fd->b_errno));
143 * Get Data from File daemon, write to device. To clarify what is
144 * going on here. We expect:
146 * - Multiple records of data
149 * The Stream header is just used to sychronize things, and
150 * none of the stream header is written to tape.
151 * The Multiple records of data, contain first the Attributes,
152 * then after another stream header, the file data, then
153 * after another stream header, the MD5 data if any.
155 * So we get the (stream header, data, EOD) three time for each
156 * file. 1. for the Attributes, 2. for the file data if any,
157 * and 3. for the MD5 if any.
159 dcr->VolFirstIndex = dcr->VolLastIndex = 0;
160 jcr->run_time = time(NULL); /* start counting time for rates */
161 for (last_file_index = 0; ok && !jcr->is_job_canceled(); ) {
163 /* Read Stream header from the File daemon.
164 * The stream header consists of the following:
165 * file_index (sequential Bacula file index, base 1)
166 * stream (Bacula number to distinguish parts of data)
167 * info (Info for Storage daemon -- compressed, encrypted, ...)
168 * info is not currently used, so is read, but ignored!
170 if ((n=bget_msg(fd)) <= 0) {
171 if (n == BNET_SIGNAL && fd->msglen == BNET_EOD) {
172 break; /* end of data */
174 Jmsg1(jcr, M_FATAL, 0, _("Error reading data header from FD. ERR=%s\n"),
176 possible_incomplete_job(jcr, last_file_index);
181 if (sscanf(fd->msg, "%ld %ld", &file_index, &stream) != 2) {
182 Jmsg1(jcr, M_FATAL, 0, _("Malformed data header from FD: %s\n"), fd->msg);
184 possible_incomplete_job(jcr, last_file_index);
188 Dmsg2(890, "<filed: Header FilInx=%d stream=%d\n", file_index, stream);
191 * We make sure the file_index is advancing sequentially.
192 * An incomplete job can start the file_index at any number.
193 * otherwise, it must start at 1.
195 if (jcr->incomplete && file_index > 0 && last_file_index == 0) {
198 if (file_index > 0 && (file_index == last_file_index ||
199 file_index == last_file_index + 1)) {
202 Jmsg2(jcr, M_FATAL, 0, _("FI=%d from FD not positive or sequential=%d\n"),
203 file_index, last_file_index);
204 possible_incomplete_job(jcr, last_file_index);
209 if (file_index != last_file_index) {
210 jcr->JobFiles = file_index;
211 last_file_index = file_index;
214 /* Read data stream from the File daemon.
215 * The data stream is just raw bytes
217 while ((n=bget_msg(fd)) > 0 && !jcr->is_job_canceled()) {
218 rec.VolSessionId = jcr->VolSessionId;
219 rec.VolSessionTime = jcr->VolSessionTime;
220 rec.FileIndex = file_index;
222 rec.maskedStream = stream & STREAMMASK_TYPE; /* strip high bits */
223 rec.data_len = fd->msglen;
224 rec.data = fd->msg; /* use message buffer */
226 Dmsg4(850, "before writ_rec FI=%d SessId=%d Strm=%s len=%d\n",
227 rec.FileIndex, rec.VolSessionId,
228 stream_to_ascii(buf1, rec.Stream,rec.FileIndex),
231 while (!write_record_to_block(dcr->block, &rec)) {
232 Dmsg2(850, "!write_record_to_block data_len=%d rem=%d\n", rec.data_len,
234 if (!write_block_to_device(dcr)) {
235 Dmsg2(90, "Got write_block_to_dev error on device %s. %s\n",
236 dev->print_name(), dev->bstrerror());
242 Dmsg0(400, "Not OK\n");
245 jcr->JobBytes += rec.data_len; /* increment bytes this job */
246 Dmsg4(850, "write_record FI=%s SessId=%d Strm=%s len=%d\n",
247 FI_to_ascii(buf1, rec.FileIndex), rec.VolSessionId,
248 stream_to_ascii(buf2, rec.Stream, rec.FileIndex), rec.data_len);
250 send_attrs_to_dir(jcr, &rec);
251 Dmsg0(650, "Enter bnet_get\n");
253 Dmsg1(650, "End read loop with FD. Stat=%d\n", n);
255 if (fd->is_error()) {
256 if (!jcr->is_job_canceled()) {
257 Dmsg1(350, "Network read error from FD. ERR=%s\n", fd->bstrerror());
258 Jmsg1(jcr, M_FATAL, 0, _("Network error reading from FD. ERR=%s\n"),
260 possible_incomplete_job(jcr, last_file_index);
267 /* Create Job status for end of session label */
268 set_jcr_job_status(jcr, ok?JS_Terminated:JS_ErrorTerminated);
271 /* Terminate connection with FD */
272 fd->fsend(OK_append);
273 do_fd_commands(jcr); /* finish dialog with FD */
275 fd->fsend("3999 Failed append\n");
279 * Don't use time_t for job_elapsed as time_t can be 32 or 64 bits,
280 * and the subsequent Jmsg() editing will break
282 int32_t job_elapsed = time(NULL) - jcr->run_time;
284 if (job_elapsed <= 0) {
288 Jmsg(dcr->jcr, M_INFO, 0, _("Job write elapsed time = %02d:%02d:%02d, Transfer rate = %s Bytes/second\n"),
289 job_elapsed / 3600, job_elapsed % 3600 / 60, job_elapsed % 60,
290 edit_uint64_with_suffix(jcr->JobBytes / job_elapsed, ec));
293 Dmsg1(200, "Write EOS label JobStatus=%c\n", jcr->JobStatus);
296 * Check if we can still write. This may not be the case
297 * if we are at the end of the tape or we got a fatal I/O error.
299 if (ok || dev->can_write()) {
300 if (!write_session_label(dcr, EOS_LABEL)) {
301 /* Print only if ok and not cancelled to avoid spurious messages */
302 if (ok && !jcr->is_job_canceled()) {
303 Jmsg1(jcr, M_FATAL, 0, _("Error writing end session label. ERR=%s\n"),
305 possible_incomplete_job(jcr, last_file_index);
307 set_jcr_job_status(jcr, JS_ErrorTerminated);
310 if (dev->VolCatInfo.VolCatName[0] == 0) {
311 Pmsg0(000, _("NULL Volume name. This shouldn't happen!!!\n"));
312 Dmsg0(000, _("NULL Volume name. This shouldn't happen!!!\n"));
314 Dmsg0(90, "back from write_end_session_label()\n");
315 /* Flush out final partial block of this session */
316 if (!write_block_to_device(dcr)) {
317 /* Print only if ok and not cancelled to avoid spurious messages */
318 if (ok && !jcr->is_job_canceled()) {
319 Jmsg2(jcr, M_FATAL, 0, _("Fatal append error on device %s: ERR=%s\n"),
320 dev->print_name(), dev->bstrerror());
321 Dmsg0(100, _("Set ok=FALSE after write_block_to_device.\n"));
322 possible_incomplete_job(jcr, last_file_index);
324 set_jcr_job_status(jcr, JS_ErrorTerminated);
330 if (!ok && !jcr->is_JobStatus(JS_Incomplete)) {
331 discard_data_spool(dcr);
333 /* Note: if commit is OK, the device will remain blocked */
334 commit_data_spool(dcr);
338 ok = dvd_close_job(dcr); /* do DVD cleanup if any */
342 * Release the device -- and send final Vol info to DIR
347 if ((!ok || jcr->is_job_canceled()) && !jcr->is_JobStatus(JS_Incomplete)) {
348 discard_attribute_spool(jcr);
350 commit_attribute_spool(jcr);
353 dir_send_job_status(jcr); /* update director */
355 Dmsg1(100, "return from do_append_data() ok=%d\n", ok);
360 /* Send attributes and digest to Director for Catalog */
361 bool send_attrs_to_dir(JCR *jcr, DEV_RECORD *rec)
363 if (rec->maskedStream == STREAM_UNIX_ATTRIBUTES ||
364 rec->maskedStream == STREAM_UNIX_ATTRIBUTES_EX ||
365 rec->maskedStream == STREAM_RESTORE_OBJECT ||
366 crypto_digest_stream_type(rec->maskedStream) != CRYPTO_DIGEST_NONE) {
367 if (!jcr->no_attributes) {
368 BSOCK *dir = jcr->dir_bsock;
369 if (are_attributes_spooled(jcr)) {
372 Dmsg0(850, "Send attributes to dir.\n");
373 if (!dir_update_file_attributes(jcr->dcr, rec)) {
374 Jmsg(jcr, M_FATAL, 0, _("Error updating file attributes. ERR=%s\n"),
376 dir->clear_spooling();
379 dir->clear_spooling();