2 * Bacula File Daemon restore.c Restorefiles.
4 * Kern Sibbald, November MM
10 Copyright (C) 2000-2003 Kern Sibbald and John Walker
12 This program is free software; you can redistribute it and/or
13 modify it under the terms of the GNU General Public License as
14 published by the Free Software Foundation; either version 2 of
15 the License, or (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 General Public License for more details.
22 You should have received a copy of the GNU General Public
23 License along with this program; if not, write to the Free
24 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
32 /* Data received from Storage Daemon */
33 static char rec_header[] = "rechdr %ld %ld %ld %ld %ld";
35 /* Forward referenced functions */
37 #define RETRY 10 /* retry wait time */
40 * Restore the requested files.
43 void do_restore(JCR *jcr)
48 uint32_t VolSessionId, VolSessionTime;
53 uint32_t total = 0; /* Job total but only 32 bits for debug */
54 char *wbuf; /* write buffer */
55 uint32_t wsize; /* write size */
56 uint64_t fileAddr = 0; /* file write address */
57 int non_support_data = 0;
58 int non_support_attr = 0;
59 int prog_name_msg = 0;
64 sd = jcr->store_bsock;
65 set_jcr_job_status(jcr, JS_Running);
67 if (!bnet_set_buffer_size(sd, MAX_NETWORK_BUFFER_SIZE, BNET_SETBUF_READ)) {
68 set_jcr_job_status(jcr, JS_ErrorTerminated);
71 jcr->buf_size = sd->msglen;
76 uint32_t compress_buf_size = jcr->buf_size + 12 + ((jcr->buf_size+999) / 1000) + 100;
77 jcr->compress_buf = (char *)bmalloc(compress_buf_size);
81 * Get a record from the Storage daemon. We are guaranteed to
82 * receive records in the following order:
83 * 1. Stream record header
85 * a. Attributes (Unix or Win32)
86 * or b. File data for the file
87 * or c. Possibly MD5 or SHA1 record
90 while (bget_msg(sd) >= 0 && !job_canceled(jcr)) {
92 * First we expect a Stream Record Header
94 if (sscanf(sd->msg, rec_header, &VolSessionId, &VolSessionTime, &file_index,
95 &stream, &size) != 5) {
96 Jmsg1(jcr, M_FATAL, 0, _("Record header scan error: %s\n"), sd->msg);
99 Dmsg2(30, "Got hdr: FilInx=%d Stream=%d.\n", file_index, stream);
102 * Now we expect the Stream Data
104 if (bget_msg(sd) < 0) {
105 Jmsg1(jcr, M_FATAL, 0, _("Data record error. ERR=%s\n"), bnet_strerror(sd));
108 if (size != (uint32_t)sd->msglen) {
109 Jmsg2(jcr, M_FATAL, 0, _("Actual data size %d not same as header %d\n"), sd->msglen, size);
112 Dmsg1(30, "Got stream data, len=%d\n", sd->msglen);
114 /* File Attributes stream */
116 case STREAM_UNIX_ATTRIBUTES:
117 case STREAM_UNIX_ATTRIBUTES_EX:
119 Dmsg1(30, "Stream=Unix Attributes. extract=%d\n", extract);
120 /* If extracting, it was from previous stream, so
121 * close the output file.
124 if (!is_bopen(&bfd)) {
125 Jmsg0(jcr, M_ERROR, 0, _("Logic error output file should be open\n"));
127 set_attributes(jcr, attr, &bfd);
129 Dmsg0(30, "Stop extracting.\n");
132 if (!unpack_attributes_record(jcr, stream, sd->msg, attr)) {
135 if (file_index != attr->file_index) {
136 Jmsg(jcr, M_FATAL, 0, _("Record header file index %ld not equal record index %ld\n"),
137 file_index, attr->file_index);
138 Dmsg0(100, "File index error\n");
142 Dmsg3(200, "File %s\nattrib=%s\nattribsEx=%s\n", attr->fname,
143 attr->attr, attr->attrEx);
145 attr->data_stream = decode_stat(attr->attr, &attr->statp, &attr->LinkFI);
147 if (!is_stream_supported(attr->data_stream)) {
148 if (!non_support_data++) {
149 Jmsg(jcr, M_ERROR, 0, _("%s stream not supported on this Client.\n"),
150 stream_to_ascii(attr->data_stream));
155 build_attr_output_fnames(jcr, attr);
157 jcr->num_files_examined++;
159 Dmsg1(30, "Outfile=%s\n", attr->ofname);
161 stat = create_file(jcr, attr, &bfd, jcr->replace);
169 pm_strcpy(&jcr->last_fname, attr->ofname);
173 print_ls_output(jcr, attr);
174 /* Set attributes after file extracted */
178 pm_strcpy(&jcr->last_fname, attr->ofname);
182 print_ls_output(jcr, attr);
183 /* set attributes now because file will not be extracted */
184 set_attributes(jcr, attr, &bfd);
190 case STREAM_FILE_DATA:
191 case STREAM_SPARSE_DATA:
192 case STREAM_WIN32_DATA:
195 if (stream == STREAM_SPARSE_DATA) {
200 wbuf = sd->msg + SPARSE_FADDR_SIZE;
201 wsize = sd->msglen - SPARSE_FADDR_SIZE;
202 ser_begin(sd->msg, SPARSE_FADDR_SIZE);
204 if (fileAddr != faddr) {
206 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
207 Jmsg3(jcr, M_ERROR, 0, _("Seek to %s error on %s: ERR=%s\n"),
208 edit_uint64(fileAddr, ec1), attr->ofname, berror(&bfd));
217 Dmsg2(30, "Write %u bytes, total before write=%u\n", wsize, total);
218 if ((uint32_t)bwrite(&bfd, wbuf, wsize) != wsize) {
219 Dmsg0(0, "===Write error===\n");
220 Jmsg2(jcr, M_ERROR, 0, _("Write error on %s: ERR=%s\n"), attr->ofname, berror(&bfd));
225 jcr->JobBytes += wsize;
226 jcr->ReadBytes += wsize;
231 /* GZIP data stream */
232 case STREAM_GZIP_DATA:
233 case STREAM_SPARSE_GZIP_DATA:
234 case STREAM_WIN32_GZIP_DATA:
240 if (stream == STREAM_SPARSE_GZIP_DATA) {
244 wbuf = sd->msg + SPARSE_FADDR_SIZE;
245 wsize = sd->msglen - SPARSE_FADDR_SIZE;
246 ser_begin(sd->msg, SPARSE_FADDR_SIZE);
248 if (fileAddr != faddr) {
250 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
251 Jmsg3(jcr, M_ERROR, 0, _("Seek to %s error on %s: ERR=%s\n"),
252 edit_uint64(fileAddr, ec1), attr->ofname, berror(&bfd));
261 compress_len = compress_buf_size;
262 Dmsg2(100, "Comp_len=%d msglen=%d\n", compress_len, wsize);
263 if ((stat=uncompress((Byte *)jcr->compress_buf, &compress_len,
264 (const Byte *)wbuf, (uLong)wsize)) != Z_OK) {
265 Jmsg(jcr, M_ERROR, 0, _("Uncompression error. ERR=%d\n"), stat);
270 Dmsg2(100, "Write uncompressed %d bytes, total before write=%d\n", compress_len, total);
271 if ((uLong)bwrite(&bfd, jcr->compress_buf, compress_len) != compress_len) {
272 Dmsg0(0, "===Write error===\n");
273 Jmsg2(jcr, M_ERROR, 0, _("Write error on %s: %s\n"), attr->ofname, berror(&bfd));
277 total += compress_len;
278 jcr->JobBytes += compress_len;
279 jcr->ReadBytes += wsize;
280 fileAddr += compress_len;
284 Jmsg(jcr, M_ERROR, 0, _("GZIP data stream found, but GZIP not configured!\n"));
291 case STREAM_MD5_SIGNATURE:
292 case STREAM_SHA1_SIGNATURE:
295 case STREAM_PROGRAM_NAMES:
296 case STREAM_PROGRAM_DATA:
297 if (!prog_name_msg) {
298 Pmsg0(000, "Got Program Name or Data Stream. Ignored.\n");
304 /* If extracting, wierd stream (not 1 or 2), close output file anyway */
306 Dmsg1(30, "Found wierd stream %d\n", stream);
307 if (!is_bopen(&bfd)) {
308 Jmsg0(jcr, M_ERROR, 0, _("Logic error output file should be open but is not.\n"));
310 set_attributes(jcr, attr, &bfd);
313 Jmsg(jcr, M_ERROR, 0, _("Unknown stream=%d ignored. This shouldn't happen!\n"), stream);
314 Dmsg2(0, "None of above!!! stream=%d data=%s\n", stream,sd->msg);
316 } /* end switch(stream) */
318 } /* end while get_msg() */
320 /* If output file is still open, it was the last one in the
321 * archive since we just hit an end of file, so close the file.
323 if (is_bopen(&bfd)) {
324 set_attributes(jcr, attr, &bfd);
326 set_jcr_job_status(jcr, JS_Terminated);
330 set_jcr_job_status(jcr, JS_ErrorTerminated);
332 if (jcr->compress_buf) {
333 free(jcr->compress_buf);
334 jcr->compress_buf = NULL;
337 Dmsg2(10, "End Do Restore. Files=%d Bytes=%" lld "\n", jcr->JobFiles,
339 if (non_support_data > 1 || non_support_attr > 1) {
340 Jmsg(jcr, M_ERROR, 0, _("%d non-supported data streams and %d non-supported attrib streams ignored.\n"),
341 non_support_data, non_support_attr);