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 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);
70 if (!bnet_set_buffer_size(sd, MAX_NETWORK_BUFFER_SIZE, BNET_SETBUF_READ)) {
71 set_jcr_job_status(jcr, JS_ErrorTerminated);
74 jcr->buf_size = sd->msglen;
79 uint32_t compress_buf_size = jcr->buf_size + 12 + ((jcr->buf_size+999) / 1000) + 100;
80 jcr->compress_buf = (char *)bmalloc(compress_buf_size);
84 * Get a record from the Storage daemon. We are guaranteed to
85 * receive records in the following order:
86 * 1. Stream record header
88 * a. Attributes (Unix or Win32)
89 * or b. File data for the file
90 * or c. Possibly MD5 or SHA1 record
93 while (bget_msg(sd) >= 0 && !job_canceled(jcr)) {
95 * First we expect a Stream Record Header
97 if (sscanf(sd->msg, rec_header, &VolSessionId, &VolSessionTime, &file_index,
98 &stream, &size) != 5) {
99 Jmsg1(jcr, M_FATAL, 0, _("Record header scan error: %s\n"), sd->msg);
102 Dmsg2(30, "Got hdr: FilInx=%d Stream=%d.\n", file_index, stream);
105 * Now we expect the Stream Data
107 if (bget_msg(sd) < 0) {
108 Jmsg1(jcr, M_FATAL, 0, _("Data record error. ERR=%s\n"), bnet_strerror(sd));
111 if (size != (uint32_t)sd->msglen) {
112 Jmsg2(jcr, M_FATAL, 0, _("Actual data size %d not same as header %d\n"), sd->msglen, size);
115 Dmsg1(30, "Got stream data, len=%d\n", sd->msglen);
117 /* File Attributes stream */
119 case STREAM_UNIX_ATTRIBUTES:
120 case STREAM_UNIX_ATTRIBUTES_EX:
122 Dmsg1(30, "Stream=Unix Attributes. extract=%d\n", extract);
123 /* If extracting, it was from previous stream, so
124 * close the output file.
127 if (!is_bopen(&bfd)) {
128 Jmsg0(jcr, M_ERROR, 0, _("Logic error output file should be open\n"));
130 set_attributes(jcr, attr, &bfd);
132 Dmsg0(30, "Stop extracting.\n");
135 if (!unpack_attributes_record(jcr, stream, sd->msg, attr)) {
138 if (file_index != attr->file_index) {
139 Jmsg(jcr, M_FATAL, 0, _("Record header file index %ld not equal record index %ld\n"),
140 file_index, attr->file_index);
141 Dmsg0(100, "File index error\n");
145 Dmsg3(200, "File %s\nattrib=%s\nattribsEx=%s\n", attr->fname,
146 attr->attr, attr->attrEx);
148 attr->data_stream = decode_stat(attr->attr, &attr->statp, &attr->LinkFI);
150 if (!is_stream_supported(attr->data_stream)) {
151 if (!non_support_data++) {
152 Jmsg(jcr, M_ERROR, 0, _("%s stream not supported on this Client.\n"),
153 stream_to_ascii(attr->data_stream));
158 build_attr_output_fnames(jcr, attr);
160 jcr->num_files_examined++;
162 Dmsg1(30, "Outfile=%s\n", attr->ofname);
164 stat = create_file(jcr, attr, &bfd, jcr->replace);
172 pm_strcpy(&jcr->last_fname, attr->ofname);
176 print_ls_output(jcr, attr);
177 /* Set attributes after file extracted */
181 pm_strcpy(&jcr->last_fname, attr->ofname);
185 print_ls_output(jcr, attr);
186 /* set attributes now because file will not be extracted */
187 set_attributes(jcr, attr, &bfd);
193 case STREAM_FILE_DATA:
194 case STREAM_SPARSE_DATA:
195 case STREAM_WIN32_DATA:
198 if (stream == STREAM_SPARSE_DATA) {
203 wbuf = sd->msg + SPARSE_FADDR_SIZE;
204 wsize = sd->msglen - SPARSE_FADDR_SIZE;
205 ser_begin(sd->msg, SPARSE_FADDR_SIZE);
207 if (fileAddr != faddr) {
209 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
210 Jmsg3(jcr, M_ERROR, 0, _("Seek to %s error on %s: ERR=%s\n"),
211 edit_uint64(fileAddr, ec1), attr->ofname, berror(&bfd));
221 Dmsg2(30, "Write %u bytes, total before write=%u\n", wsize, total);
222 if ((uint32_t)bwrite(&bfd, wbuf, wsize) != wsize) {
223 Dmsg0(0, "===Write error===\n");
224 Jmsg2(jcr, M_ERROR, 0, _("Write error on %s: ERR=%s\n"), attr->ofname, berror(&bfd));
230 jcr->JobBytes += wsize;
231 jcr->ReadBytes += wsize;
236 /* GZIP data stream */
237 case STREAM_GZIP_DATA:
238 case STREAM_SPARSE_GZIP_DATA:
239 case STREAM_WIN32_GZIP_DATA:
245 if (stream == STREAM_SPARSE_GZIP_DATA) {
249 wbuf = sd->msg + SPARSE_FADDR_SIZE;
250 wsize = sd->msglen - SPARSE_FADDR_SIZE;
251 ser_begin(sd->msg, SPARSE_FADDR_SIZE);
253 if (fileAddr != faddr) {
255 if (blseek(&bfd, (off_t)fileAddr, SEEK_SET) < 0) {
256 Jmsg3(jcr, M_ERROR, 0, _("Seek to %s error on %s: ERR=%s\n"),
257 edit_uint64(fileAddr, ec1), attr->ofname, berror(&bfd));
267 compress_len = compress_buf_size;
268 Dmsg2(100, "Comp_len=%d msglen=%d\n", compress_len, wsize);
269 if ((stat=uncompress((Byte *)jcr->compress_buf, &compress_len,
270 (const Byte *)wbuf, (uLong)wsize)) != Z_OK) {
271 Jmsg(jcr, M_ERROR, 0, _("Uncompression error on file %s. ERR=%s\n"),
272 attr->ofname, zlib_strerror(stat));
278 Dmsg2(100, "Write uncompressed %d bytes, total before write=%d\n", compress_len, total);
279 if ((uLong)bwrite(&bfd, jcr->compress_buf, compress_len) != compress_len) {
280 Dmsg0(0, "===Write error===\n");
281 Jmsg2(jcr, M_ERROR, 0, _("Write error on %s: %s\n"), attr->ofname, berror(&bfd));
286 total += compress_len;
287 jcr->JobBytes += compress_len;
288 jcr->ReadBytes += wsize;
289 fileAddr += compress_len;
293 Jmsg(jcr, M_ERROR, 0, _("GZIP data stream found, but GZIP not configured!\n"));
301 case STREAM_MD5_SIGNATURE:
302 case STREAM_SHA1_SIGNATURE:
305 case STREAM_PROGRAM_NAMES:
306 case STREAM_PROGRAM_DATA:
307 if (!prog_name_msg) {
308 Pmsg0(000, "Got Program Name or Data Stream. Ignored.\n");
314 /* If extracting, wierd stream (not 1 or 2), close output file anyway */
316 Dmsg1(30, "Found wierd stream %d\n", stream);
317 if (!is_bopen(&bfd)) {
318 Jmsg0(jcr, M_ERROR, 0, _("Logic error output file should be open but is not.\n"));
320 set_attributes(jcr, attr, &bfd);
323 Jmsg(jcr, M_ERROR, 0, _("Unknown stream=%d ignored. This shouldn't happen!\n"), stream);
324 Dmsg2(0, "None of above!!! stream=%d data=%s\n", stream,sd->msg);
326 } /* end switch(stream) */
328 } /* end while get_msg() */
330 /* If output file is still open, it was the last one in the
331 * archive since we just hit an end of file, so close the file.
333 if (is_bopen(&bfd)) {
334 set_attributes(jcr, attr, &bfd);
336 set_jcr_job_status(jcr, JS_Terminated);
340 set_jcr_job_status(jcr, JS_ErrorTerminated);
342 if (jcr->compress_buf) {
343 free(jcr->compress_buf);
344 jcr->compress_buf = NULL;
348 Dmsg2(10, "End Do Restore. Files=%d Bytes=%" lld "\n", jcr->JobFiles,
350 if (non_support_data > 1 || non_support_attr > 1) {
351 Jmsg(jcr, M_ERROR, 0, _("%d non-supported data streams and %d non-supported attrib streams ignored.\n"),
352 non_support_data, non_support_attr);
358 * Convert ZLIB error code into an ASCII message
360 static char *zlib_strerror(int stat)
369 return "Zlib stream error";
371 return "Zlib data error";
373 return "Zlib memory error";
375 return "Zlib buffer error";
376 case Z_VERSION_ERROR:
377 return "Zlib version error";