2 * Append code for Storage daemon
8 Copyright (C) 2000-2004 Kern Sibbald and John Walker
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2 of
13 the License, or (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public
21 License along with this program; if not, write to the Free
22 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
31 /* Responses sent to the File daemon */
32 static char OK_data[] = "3000 OK data\n";
34 /* Forward referenced functions */
37 * Append Data sent from File daemon
40 bool do_append_data(JCR *jcr)
43 int32_t file_index, stream, last_file_index;
45 BSOCK *fd_sock = jcr->file_bsock;
51 Dmsg0(10, "Start append data.\n");
55 if (!bnet_set_buffer_size(ds, jcr->device->max_network_buffer_size, BNET_SETBUF_WRITE)) {
56 set_jcr_job_status(jcr, JS_ErrorTerminated);
57 Jmsg(jcr, M_FATAL, 0, _("Unable to set network buffer size.\n"));
62 * Acquire output device for writing. Note, after acquiring a
63 * device, we MUST release it, which is done at the end of this
66 Dmsg0(100, "just before acquire_device\n");
67 if (!(dcr=acquire_device_for_append(jcr))) {
68 set_jcr_job_status(jcr, JS_ErrorTerminated);
72 memset(&rec, 0, sizeof(rec));
74 Dmsg1(20, "Begin append device=%s\n", dev_name(dev));
76 begin_data_spool(jcr);
77 begin_attribute_spool(jcr);
79 Dmsg0(100, "Just after acquire_device_for_append\n");
81 * Write Begin Session Record
83 if (!write_session_label(dcr, SOS_LABEL)) {
84 Jmsg1(jcr, M_FATAL, 0, _("Write session label failed. ERR=%s\n"),
86 set_jcr_job_status(jcr, JS_ErrorTerminated);
90 /* Tell File daemon to send data */
91 bnet_fsend(fd_sock, OK_data);
94 * Get Data from File daemon, write to device. To clarify what is
95 * going on here. We expect:
97 * - Multiple records of data
100 * The Stream header is just used to sychronize things, and
101 * none of the stream header is written to tape.
102 * The Multiple records of data, contain first the Attributes,
103 * then after another stream header, the file data, then
104 * after another stream header, the MD5 data if any.
106 * So we get the (stream header, data, EOD) three time for each
107 * file. 1. for the Attributes, 2. for the file data if any,
108 * and 3. for the MD5 if any.
110 dcr->VolFirstIndex = dcr->VolLastIndex = 0;
111 jcr->run_time = time(NULL); /* start counting time for rates */
112 for (last_file_index = 0; ok && !job_canceled(jcr); ) {
114 /* Read Stream header from the File daemon.
115 * The stream header consists of the following:
116 * file_index (sequential Bacula file index, base 1)
117 * stream (Bacula number to distinguish parts of data)
118 * info (Info for Storage daemon -- compressed, encryped, ...)
119 * info is not currently used, so is read, but ignored!
121 if ((n=bget_msg(ds)) <= 0) {
122 if (n == BNET_SIGNAL && ds->msglen == BNET_EOD) {
123 break; /* end of data */
125 Jmsg1(jcr, M_FATAL, 0, _("Error reading data header from FD. ERR=%s\n"),
132 * This hand scanning is a bit more complicated than a simple
133 * sscanf, but it allows us to handle any size integer up to
134 * int64_t without worrying about whether %d, %ld, %lld, or %q
135 * is the correct format for each different architecture.
136 * It is a real pity that sscanf() is not portable.
139 while (B_ISSPACE(*p)) {
142 file_index = (int32_t)str_to_int64(p);
143 while (B_ISDIGIT(*p)) {
146 if (!B_ISSPACE(*p) || !B_ISDIGIT(*(p+1))) {
147 Jmsg1(jcr, M_FATAL, 0, _("Malformed data header from FD: %s\n"), ds->msg);
151 stream = (int32_t)str_to_int64(p);
153 Dmsg2(190, "<filed: Header FilInx=%d stream=%d\n", file_index, stream);
155 if (!(file_index > 0 && (file_index == last_file_index ||
156 file_index == last_file_index + 1))) {
157 Jmsg0(jcr, M_FATAL, 0, _("File index from FD not positive or sequential\n"));
161 if (file_index != last_file_index) {
162 jcr->JobFiles = file_index;
163 last_file_index = file_index;
166 /* Read data stream from the File daemon.
167 * The data stream is just raw bytes
169 while ((n=bget_msg(ds)) > 0 && !job_canceled(jcr)) {
170 rec.VolSessionId = jcr->VolSessionId;
171 rec.VolSessionTime = jcr->VolSessionTime;
172 rec.FileIndex = file_index;
174 rec.data_len = ds->msglen;
175 rec.data = ds->msg; /* use message buffer */
177 Dmsg4(250, "before writ_rec FI=%d SessId=%d Strm=%s len=%d\n",
178 rec.FileIndex, rec.VolSessionId, stream_to_ascii(rec.Stream,rec.FileIndex),
181 while (!write_record_to_block(dcr->block, &rec)) {
182 Dmsg2(150, "!write_record_to_block data_len=%d rem=%d\n", rec.data_len,
184 if (!write_block_to_device(dcr)) {
185 Dmsg2(90, "Got write_block_to_dev error on device %s. %s\n",
186 dev_name(dev), strerror_dev(dev));
187 Jmsg(jcr, M_FATAL, 0, _("Fatal device error: ERR=%s\n"),
194 Dmsg0(400, "Not OK\n");
197 jcr->JobBytes += rec.data_len; /* increment bytes this job */
198 Dmsg4(200, "write_record FI=%s SessId=%d Strm=%s len=%d\n",
199 FI_to_ascii(rec.FileIndex), rec.VolSessionId,
200 stream_to_ascii(rec.Stream, rec.FileIndex), rec.data_len);
202 /* Send attributes and MD5 to Director for Catalog */
203 if (stream == STREAM_UNIX_ATTRIBUTES || stream == STREAM_MD5_SIGNATURE ||
204 stream == STREAM_UNIX_ATTRIBUTES_EX || stream == STREAM_SHA1_SIGNATURE) {
205 if (!jcr->no_attributes) {
206 if (are_attributes_spooled(jcr)) {
207 jcr->dir_bsock->spool = true;
209 Dmsg0(200, "Send attributes.\n");
210 if (!dir_update_file_attributes(dcr, &rec)) {
211 jcr->dir_bsock->spool = false;
212 Jmsg(jcr, M_FATAL, 0, _("Error updating file attributes. ERR=%s\n"),
213 bnet_strerror(jcr->dir_bsock));
217 jcr->dir_bsock->spool = false;
221 if (is_bnet_error(ds)) {
222 Jmsg1(jcr, M_FATAL, 0, _("Network error on data channel. ERR=%s\n"),
229 /* Create Job status for end of session label */
230 set_jcr_job_status(jcr, ok?JS_Terminated:JS_ErrorTerminated);
232 Dmsg1(200, "Write session label JobStatus=%d\n", jcr->JobStatus);
235 * If !OK, check if we can still write. This may not be the case
236 * if we are at the end of the tape or we got a fatal I/O error.
238 if (ok || dev_can_write(dev)) {
239 if (!write_session_label(dcr, EOS_LABEL)) {
240 Jmsg1(jcr, M_FATAL, 0, _("Error writting end session label. ERR=%s\n"),
242 set_jcr_job_status(jcr, JS_ErrorTerminated);
245 Dmsg0(90, "back from write_end_session_label()\n");
246 /* Flush out final partial block of this session */
247 if (!write_block_to_device(dcr)) {
248 Dmsg0(100, _("Set ok=FALSE after write_block_to_device.\n"));
249 set_jcr_job_status(jcr, JS_ErrorTerminated);
255 discard_data_spool(jcr);
257 commit_data_spool(jcr);
260 Dmsg1(200, "calling release device JobStatus=%d\n", jcr->JobStatus);
261 /* Release the device */
262 if (!release_device(jcr)) {
263 Pmsg0(000, _("Error in release_device\n"));
264 set_jcr_job_status(jcr, JS_ErrorTerminated);
269 discard_attribute_spool(jcr);
271 commit_attribute_spool(jcr);
274 dir_send_job_status(jcr); /* update director */
276 Dmsg1(100, "return from do_append_data() stat=%d\n", ok);