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 static const char *zlib_strerror(int stat);
40 #define RETRY 10 /* retry wait time */
43 * Restore the requested files.
46 void do_restore(JCR *jcr)
51 uint32_t VolSessionId, VolSessionTime;
56 uint32_t total = 0; /* Job total but only 32 bits for debug */
57 char *wbuf; /* write buffer */
58 uint32_t wsize; /* write size */
59 uint64_t fileAddr = 0; /* file write address */
60 int non_support_data = 0;
61 int non_support_attr = 0;
62 int prog_name_msg = 0;
67 sd = jcr->store_bsock;
68 set_jcr_job_status(jcr, JS_Running);
71 CLIENT *client = (CLIENT *)GetNextRes(R_CLIENT, NULL);
75 buf_size = client->max_network_buffer_size;
77 buf_size = 0; /* use default */
79 if (!bnet_set_buffer_size(sd, buf_size, BNET_SETBUF_WRITE)) {
80 set_jcr_job_status(jcr, JS_ErrorTerminated);
83 jcr->buf_size = sd->msglen;
88 uint32_t compress_buf_size = jcr->buf_size + 12 + ((jcr->buf_size+999) / 1000) + 100;
89 jcr->compress_buf = (char *)bmalloc(compress_buf_size);
93 * Get a record from the Storage daemon. We are guaranteed to
94 * receive records in the following order:
95 * 1. Stream record header
97 * a. Attributes (Unix or Win32)
98 * or b. File data for the file
99 * or c. Possibly MD5 or SHA1 record
102 while (bget_msg(sd) >= 0 && !job_canceled(jcr)) {
104 * First we expect a Stream Record Header
106 if (sscanf(sd->msg, rec_header, &VolSessionId, &VolSessionTime, &file_index,
107 &stream, &size) != 5) {
108 Jmsg1(jcr, M_FATAL, 0, _("Record header scan error: %s\n"), sd->msg);
111 Dmsg2(30, "Got hdr: FilInx=%d Stream=%d.\n", file_index, stream);
114 * Now we expect the Stream Data
116 if (bget_msg(sd) < 0) {
117 Jmsg1(jcr, M_FATAL, 0, _("Data record error. ERR=%s\n"), bnet_strerror(sd));
120 if (size != (uint32_t)sd->msglen) {
121 Jmsg2(jcr, M_FATAL, 0, _("Actual data size %d not same as header %d\n"), sd->msglen, size);
124 Dmsg1(30, "Got stream data, len=%d\n", sd->msglen);
126 /* File Attributes stream */
128 case STREAM_UNIX_ATTRIBUTES:
129 case STREAM_UNIX_ATTRIBUTES_EX:
131 Dmsg1(30, "Stream=Unix Attributes. extract=%d\n", extract);
132 /* If extracting, it was from previous stream, so
133 * close the output file.
136 if (!is_bopen(&bfd)) {
137 Jmsg0(jcr, M_ERROR, 0, _("Logic error output file should be open\n"));
139 set_attributes(jcr, attr, &bfd);
141 Dmsg0(30, "Stop extracting.\n");
144 if (!unpack_attributes_record(jcr, stream, sd->msg, attr)) {
147 if (file_index != attr->file_index) {
148 Jmsg(jcr, M_FATAL, 0, _("Record header file index %ld not equal record index %ld\n"),
149 file_index, attr->file_index);
150 Dmsg0(100, "File index error\n");
154 Dmsg3(200, "File %s\nattrib=%s\nattribsEx=%s\n", attr->fname,
155 attr->attr, attr->attrEx);
157 attr->data_stream = decode_stat(attr->attr, &attr->statp, &attr->LinkFI);
159 if (!is_stream_supported(attr->data_stream)) {
160 if (!non_support_data++) {
161 Jmsg(jcr, M_ERROR, 0, _("%s stream not supported on this Client.\n"),
162 stream_to_ascii(attr->data_stream));
167 build_attr_output_fnames(jcr, attr);
169 jcr->num_files_examined++;
171 Dmsg1(30, "Outfile=%s\n", attr->ofname);
173 stat = create_file(jcr, attr, &bfd, jcr->replace);
181 pm_strcpy(&jcr->last_fname, attr->ofname);
185 print_ls_output(jcr, attr);
186 /* Set attributes after file extracted */
190 pm_strcpy(&jcr->last_fname, attr->ofname);
194 print_ls_output(jcr, attr);
195 /* set attributes now because file will not be extracted */
196 set_attributes(jcr, attr, &bfd);
202 case STREAM_FILE_DATA:
203 case STREAM_SPARSE_DATA:
204 case STREAM_WIN32_DATA:
207 if (stream == STREAM_SPARSE_DATA) {
212 wbuf = sd->msg + SPARSE_FADDR_SIZE;
213 wsize = sd->msglen - SPARSE_FADDR_SIZE;
214 ser_begin(sd->msg, SPARSE_FADDR_SIZE);
216 if (fileAddr != faddr) {
218 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
219 Jmsg3(jcr, M_ERROR, 0, _("Seek to %s error on %s: ERR=%s\n"),
220 edit_uint64(fileAddr, ec1), attr->ofname, berror(&bfd));
230 Dmsg2(30, "Write %u bytes, total before write=%u\n", wsize, total);
231 if ((uint32_t)bwrite(&bfd, wbuf, wsize) != wsize) {
232 Dmsg0(0, "===Write error===\n");
233 Jmsg2(jcr, M_ERROR, 0, _("Write error on %s: ERR=%s\n"), attr->ofname, berror(&bfd));
239 jcr->JobBytes += wsize;
240 jcr->ReadBytes += wsize;
245 /* GZIP data stream */
246 case STREAM_GZIP_DATA:
247 case STREAM_SPARSE_GZIP_DATA:
248 case STREAM_WIN32_GZIP_DATA:
254 if (stream == STREAM_SPARSE_GZIP_DATA) {
258 wbuf = sd->msg + SPARSE_FADDR_SIZE;
259 wsize = sd->msglen - SPARSE_FADDR_SIZE;
260 ser_begin(sd->msg, SPARSE_FADDR_SIZE);
262 if (fileAddr != faddr) {
264 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
265 Jmsg3(jcr, M_ERROR, 0, _("Seek to %s error on %s: ERR=%s\n"),
266 edit_uint64(fileAddr, ec1), attr->ofname, berror(&bfd));
276 compress_len = compress_buf_size;
277 Dmsg2(100, "Comp_len=%d msglen=%d\n", compress_len, wsize);
278 if ((stat=uncompress((Byte *)jcr->compress_buf, &compress_len,
279 (const Byte *)wbuf, (uLong)wsize)) != Z_OK) {
280 Jmsg(jcr, M_ERROR, 0, _("Uncompression error on file %s. ERR=%s\n"),
281 attr->ofname, zlib_strerror(stat));
287 Dmsg2(100, "Write uncompressed %d bytes, total before write=%d\n", compress_len, total);
288 if ((uLong)bwrite(&bfd, jcr->compress_buf, compress_len) != compress_len) {
289 Dmsg0(0, "===Write error===\n");
290 Jmsg2(jcr, M_ERROR, 0, _("Write error on %s: %s\n"), attr->ofname, berror(&bfd));
295 total += compress_len;
296 jcr->JobBytes += compress_len;
297 jcr->ReadBytes += wsize;
298 fileAddr += compress_len;
302 Jmsg(jcr, M_ERROR, 0, _("GZIP data stream found, but GZIP not configured!\n"));
310 case STREAM_MD5_SIGNATURE:
311 case STREAM_SHA1_SIGNATURE:
314 case STREAM_PROGRAM_NAMES:
315 case STREAM_PROGRAM_DATA:
316 if (!prog_name_msg) {
317 Pmsg0(000, "Got Program Name or Data Stream. Ignored.\n");
323 /* If extracting, wierd stream (not 1 or 2), close output file anyway */
325 Dmsg1(30, "Found wierd stream %d\n", stream);
326 if (!is_bopen(&bfd)) {
327 Jmsg0(jcr, M_ERROR, 0, _("Logic error output file should be open but is not.\n"));
329 set_attributes(jcr, attr, &bfd);
332 Jmsg(jcr, M_ERROR, 0, _("Unknown stream=%d ignored. This shouldn't happen!\n"), stream);
333 Dmsg2(0, "None of above!!! stream=%d data=%s\n", stream,sd->msg);
335 } /* end switch(stream) */
337 } /* end while get_msg() */
339 /* If output file is still open, it was the last one in the
340 * archive since we just hit an end of file, so close the file.
342 if (is_bopen(&bfd)) {
343 set_attributes(jcr, attr, &bfd);
345 set_jcr_job_status(jcr, JS_Terminated);
349 set_jcr_job_status(jcr, JS_ErrorTerminated);
351 if (jcr->compress_buf) {
352 free(jcr->compress_buf);
353 jcr->compress_buf = NULL;
357 Dmsg2(10, "End Do Restore. Files=%d Bytes=%" lld "\n", jcr->JobFiles,
359 if (non_support_data > 1 || non_support_attr > 1) {
360 Jmsg(jcr, M_ERROR, 0, _("%d non-supported data streams and %d non-supported attrib streams ignored.\n"),
361 non_support_data, non_support_attr);
367 * Convert ZLIB error code into an ASCII message
369 static const char *zlib_strerror(int stat)
378 return "Zlib stream error";
380 return "Zlib data error";
382 return "Zlib memory error";
384 return "Zlib buffer error";
385 case Z_VERSION_ERROR:
386 return "Zlib version error";