2 * Bacula File Daemon backup.c send file attributes and data
3 * to the Storage daemon.
5 * Kern Sibbald, March MM
11 Copyright (C) 2000-2003 Kern Sibbald and John Walker
13 This program is free software; you can redistribute it and/or
14 modify it under the terms of the GNU General Public License as
15 published by the Free Software Foundation; either version 2 of
16 the License, or (at your option) any later version.
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 General Public License for more details.
23 You should have received a copy of the GNU General Public
24 License along with this program; if not, write to the Free
25 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
33 static int save_file(FF_PKT *ff_pkt, void *pkt);
36 * Find all the requested files and send them
37 * to the Storage daemon.
39 * Note, we normally carry on a one-way
40 * conversation from this point on with the SD, simply blasting
41 * data to him. To properly know what is going on, we
42 * also run a "heartbeat" monitor which reads the socket and
43 * reacts accordingly (at the moment it has nothing to do
44 * except echo the heartbeat to the Director).
47 int blast_data_to_storage_daemon(JCR *jcr, char *addr)
52 sd = jcr->store_bsock;
54 set_jcr_job_status(jcr, JS_Running);
56 Dmsg1(300, "bfiled: opened data connection %d to stored\n", sd->fd);
59 CLIENT *client = (CLIENT *)GetNextRes(R_CLIENT, NULL);
63 buf_size = client->max_network_buffer_size;
65 buf_size = 0; /* use default */
67 if (!bnet_set_buffer_size(sd, buf_size, BNET_SETBUF_WRITE)) {
68 set_jcr_job_status(jcr, JS_ErrorTerminated);
69 Jmsg(jcr, M_FATAL, 0, _("Cannot set buffer size FD->SD.\n"));
73 jcr->buf_size = sd->msglen;
74 /* Adjust for compression so that output buffer is
75 * 12 bytes + 0.1% larger than input buffer plus 18 bytes.
76 * This gives a bit extra plus room for the sparse addr if any.
77 * Note, we adjust the read size to be smaller so that the
78 * same output buffer can be used without growing it.
80 jcr->compress_buf_size = jcr->buf_size + ((jcr->buf_size+999) / 1000) + 30;
81 jcr->compress_buf = get_memory(jcr->compress_buf_size);
83 Dmsg1(300, "set_find_options ff=%p\n", jcr->ff);
84 set_find_options((FF_PKT *)jcr->ff, jcr->incremental, jcr->mtime);
85 Dmsg0(300, "start find files\n");
87 start_heartbeat_monitor(jcr);
89 /* Subroutine save_file() is called for each file */
90 if (!find_files(jcr, (FF_PKT *)jcr->ff, save_file, (void *)jcr)) {
92 set_jcr_job_status(jcr, JS_ErrorTerminated);
93 Jmsg(jcr, M_FATAL, 0, _("Find files error.\n"));
96 stop_heartbeat_monitor(jcr);
98 bnet_sig(sd, BNET_EOD); /* end data connection */
104 if (jcr->compress_buf) {
105 free_pool_memory(jcr->compress_buf);
106 jcr->compress_buf = NULL;
108 Dmsg1(300, "end blast_data stat=%d\n", stat);
113 * Called here by find() for each file included.
115 * *****FIXME***** add FSMs File System Modules
117 * Send the file and its data to the Storage daemon.
121 * -1 to ignore file/directory (not used here)
123 static int save_file(FF_PKT *ff_pkt, void *vjcr)
125 char attribs[MAXSTRING];
126 char attribsEx[MAXSTRING];
127 int stat, attr_stream, data_stream;
128 struct MD5Context md5c;
129 struct SHA1Context sha1c;
132 unsigned char signature[30]; /* large enough for either signature */
134 JCR *jcr = (JCR *)vjcr;
137 if (job_canceled(jcr)) {
141 sd = jcr->store_bsock;
142 jcr->num_files_examined++; /* bump total file count */
144 switch (ff_pkt->type) {
145 case FT_LNKSAVED: /* Hard linked, file already saved */
146 Dmsg2(130, "FT_LNKSAVED hard link: %s => %s\n", ff_pkt->fname, ff_pkt->link);
149 Dmsg1(130, "FT_REGE saving: %s\n", ff_pkt->fname);
152 Dmsg1(130, "FT_REG saving: %s\n", ff_pkt->fname);
155 Dmsg2(130, "FT_LNK saving: %s -> %s\n", ff_pkt->fname, ff_pkt->link);
158 return 1; /* not used */
160 Dmsg1(130, "FT_DIR saving: %s\n", ff_pkt->link);
163 Dmsg1(130, "FT_SPEC saving: %s\n", ff_pkt->fname);
166 Dmsg1(130, "FT_RAW saving: %s\n", ff_pkt->fname);
169 Dmsg1(130, "FT_FIFO saving: %s\n", ff_pkt->fname);
172 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not access %s: ERR=%s\n"), ff_pkt->fname,
173 strerror(ff_pkt->ff_errno));
177 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not follow link %s: ERR=%s\n"), ff_pkt->fname,
178 strerror(ff_pkt->ff_errno));
182 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not stat %s: ERR=%s\n"), ff_pkt->fname,
183 strerror(ff_pkt->ff_errno));
188 Jmsg(jcr, M_SKIPPED, -1, _(" Unchanged file skipped: %s\n"), ff_pkt->fname);
191 Jmsg(jcr, M_NOTSAVED, -1, _(" Archive file not saved: %s\n"), ff_pkt->fname);
194 Jmsg(jcr, M_SKIPPED, -1, _(" Recursion turned off. Directory skipped: %s\n"),
198 Jmsg(jcr, M_SKIPPED, -1, _(" File system change prohibited. Directory skipped. %s\n"),
202 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not open directory %s: ERR=%s\n"), ff_pkt->fname,
203 strerror(ff_pkt->ff_errno));
207 Jmsg(jcr, M_NOTSAVED, 0, _(" Unknown file type %d; not saved: %s\n"), ff_pkt->type, ff_pkt->fname);
213 if (ff_pkt->flags & FO_PORTABLE) {
214 set_portable_backup(&ff_pkt->bfd); /* disable Win32 BackupRead() */
218 * Open any file with data that we intend to save.
219 * Note, if is_win32_backup, we must open the Directory so that
220 * the BackupRead will save its permissions and ownership streams.
222 if (ff_pkt->type != FT_LNKSAVED && (S_ISREG(ff_pkt->statp.st_mode) &&
223 ff_pkt->statp.st_size > 0) ||
224 ff_pkt->type == FT_RAW || ff_pkt->type == FT_FIFO ||
225 (!is_portable_backup(&ff_pkt->bfd) && ff_pkt->type == FT_DIREND)) {
227 if (ff_pkt->type == FT_FIFO) {
228 tid = start_thread_timer(pthread_self(), 60);
232 if (bopen(&ff_pkt->bfd, ff_pkt->fname, O_RDONLY | O_BINARY, 0) < 0) {
233 ff_pkt->ff_errno = errno;
234 Jmsg(jcr, M_NOTSAVED, -1, _(" Cannot open %s: ERR=%s.\n"), ff_pkt->fname,
235 berror(&ff_pkt->bfd));
237 stop_thread_timer(tid);
240 stop_thread_timer(tid);
243 Dmsg1(130, "bfiled: sending %s to stored\n", ff_pkt->fname);
245 /* Find what data stream we will use, then encode the attributes */
246 data_stream = select_data_stream(ff_pkt);
247 encode_stat(attribs, ff_pkt, data_stream);
249 /* Now possibly extend the attributes */
250 attr_stream = encode_attribsEx(jcr, attribsEx, ff_pkt);
252 Dmsg3(300, "File %s\nattribs=%s\nattribsEx=%s\n", ff_pkt->fname, attribs, attribsEx);
255 jcr->JobFiles++; /* increment number of files sent */
256 ff_pkt->FileIndex = jcr->JobFiles; /* return FileIndex */
257 pm_strcpy(&jcr->last_fname, ff_pkt->fname);
261 * Send Attributes header to Storage daemon
262 * <file-index> <stream> <info>
264 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, attr_stream)) {
265 if (is_bopen(&ff_pkt->bfd)) {
266 bclose(&ff_pkt->bfd);
268 set_jcr_job_status(jcr, JS_ErrorTerminated);
271 Dmsg1(300, ">stored: attrhdr %s\n", sd->msg);
274 * Send file attributes to Storage daemon
277 * Filename (full path)
279 * Link name (if type==FT_LNK or FT_LNKSAVED)
280 * Encoded extended-attributes (for Win32)
282 * For a directory, link is the same as fname, but with trailing
283 * slash. For a linked file, link is the link.
285 if (ff_pkt->type == FT_LNK || ff_pkt->type == FT_LNKSAVED) {
286 Dmsg2(300, "Link %s to %s\n", ff_pkt->fname, ff_pkt->link);
287 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%s%c%s%c", jcr->JobFiles,
288 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, ff_pkt->link, 0,
290 } else if (ff_pkt->type == FT_DIREND) {
291 /* Here link is the canonical filename (i.e. with trailing slash) */
292 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
293 ff_pkt->type, ff_pkt->link, 0, attribs, 0, 0, attribsEx, 0);
295 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
296 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, 0, attribsEx, 0);
299 Dmsg2(300, ">stored: attr len=%d: %s\n", sd->msglen, sd->msg);
301 if (is_bopen(&ff_pkt->bfd)) {
302 bclose(&ff_pkt->bfd);
304 set_jcr_job_status(jcr, JS_ErrorTerminated);
305 Jmsg0(jcr, M_FATAL, 0, _("Network send error.\n"));
308 bnet_sig(sd, BNET_EOD); /* indicate end of attributes data */
311 * If the file has data, read it and send to the Storage daemon
314 if (is_bopen(&ff_pkt->bfd)) {
315 uint64_t fileAddr = 0; /* file address */
317 int rsize = jcr->buf_size; /* read buffer size */
320 rbuf = sd->msg; /* read buffer */
321 wbuf = sd->msg; /* write buffer */
324 Dmsg1(300, "Saving data, type=%d\n", ff_pkt->type);
328 uLong compress_len, max_compress_len = 0;
329 const Bytef *cbuf = NULL;
331 if (ff_pkt->flags & FO_GZIP) {
332 if (ff_pkt->flags & FO_SPARSE) {
333 cbuf = (Bytef *)jcr->compress_buf + SPARSE_FADDR_SIZE;
334 max_compress_len = jcr->compress_buf_size - SPARSE_FADDR_SIZE;
336 cbuf = (Bytef *)jcr->compress_buf;
337 max_compress_len = jcr->compress_buf_size; /* set max length */
339 wbuf = jcr->compress_buf; /* compressed output here */
344 * Send Data header to Storage daemon
345 * <file-index> <stream> <info>
347 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, data_stream)) {
348 bclose(&ff_pkt->bfd);
349 set_jcr_job_status(jcr, JS_ErrorTerminated);
350 Jmsg0(jcr, M_FATAL, 0, _("Network send error.\n"));
353 Dmsg1(300, ">stored: datahdr %s\n", sd->msg);
355 if (ff_pkt->flags & FO_MD5) {
357 } else if (ff_pkt->flags & FO_SHA1) {
362 * Make space at beginning of buffer for fileAddr because this
363 * same buffer will be used for writing if compression if off.
365 if (ff_pkt->flags & FO_SPARSE) {
366 rbuf += SPARSE_FADDR_SIZE;
367 rsize -= SPARSE_FADDR_SIZE;
368 #ifdef HAVE_FREEBSD_OS
370 * To read FreeBSD partitions, the read size must be
373 rsize = (rsize/512) * 512;
380 while ((sd->msglen=(uint32_t)bread(&ff_pkt->bfd, rbuf, rsize)) > 0) {
383 /* Check for sparse blocks */
384 if (ff_pkt->flags & FO_SPARSE) {
386 if (sd->msglen == rsize &&
387 (fileAddr+sd->msglen < (uint64_t)ff_pkt->statp.st_size)) {
388 sparseBlock = is_buf_zero(rbuf, rsize);
391 ser_begin(wbuf, SPARSE_FADDR_SIZE);
392 ser_uint64(fileAddr); /* store fileAddr in begin of buffer */
395 jcr->ReadBytes += sd->msglen; /* count bytes read */
396 fileAddr += sd->msglen;
398 /* Update MD5 if requested */
399 if (ff_pkt->flags & FO_MD5) {
400 MD5Update(&md5c, (unsigned char *)rbuf, sd->msglen);
402 } else if (ff_pkt->flags & FO_SHA1) {
403 SHA1Update(&sha1c, (unsigned char *)rbuf, sd->msglen);
408 /* Do compression if turned on */
409 if (!sparseBlock && ff_pkt->flags & FO_GZIP) {
411 compress_len = max_compress_len;
412 Dmsg4(400, "cbuf=0x%x len=%u rbuf=0x%x len=%u\n", cbuf, compress_len,
414 /* NOTE! This call modifies compress_len !!! */
415 if ((zstat=compress2((Bytef *)cbuf, &compress_len,
416 (const Bytef *)rbuf, (uLong)sd->msglen,
417 ff_pkt->GZIP_level)) != Z_OK) {
418 Jmsg(jcr, M_FATAL, 0, _("Compression error: %d\n"), zstat);
421 bclose(&ff_pkt->bfd);
422 set_jcr_job_status(jcr, JS_ErrorTerminated);
425 Dmsg2(400, "compressed len=%d uncompressed len=%d\n",
426 compress_len, sd->msglen);
428 sd->msglen = compress_len; /* set compressed length */
432 /* Send the buffer to the Storage daemon */
434 if (ff_pkt->flags & FO_SPARSE) {
435 sd->msglen += SPARSE_FADDR_SIZE; /* include fileAddr in size */
437 sd->msg = wbuf; /* set correct write buffer */
438 if (!bnet_send(sd)) {
439 sd->msg = msgsave; /* restore bnet buffer */
441 bclose(&ff_pkt->bfd);
442 set_jcr_job_status(jcr, JS_ErrorTerminated);
443 Jmsg0(jcr, M_FATAL, 0, _("Network send error.\n"));
447 Dmsg1(130, "Send data to SD len=%d\n", sd->msglen);
449 jcr->JobBytes += sd->msglen; /* count bytes saved possibly compressed */
450 sd->msg = msgsave; /* restore read buffer */
452 } /* end while read file data */
455 if (sd->msglen < 0) {
456 Jmsg(jcr, M_ERROR, 0, _("Read error on file %s. ERR=%s\n"),
457 ff_pkt->fname, berror(&ff_pkt->bfd));
460 bclose(&ff_pkt->bfd); /* close file */
461 if (!bnet_sig(sd, BNET_EOD)) { /* indicate end of file data */
462 set_jcr_job_status(jcr, JS_ErrorTerminated);
463 Jmsg0(jcr, M_FATAL, 0, _("Network send error.\n"));
468 /* Terminate any MD5 signature and send it to Storage daemon and the Director */
469 if (gotMD5 && ff_pkt->flags & FO_MD5) {
470 MD5Final(signature, &md5c);
471 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_MD5_SIGNATURE);
472 Dmsg1(300, "bfiled>stored:header %s\n", sd->msg);
473 memcpy(sd->msg, signature, 16);
476 bnet_sig(sd, BNET_EOD); /* end of MD5 */
479 } else if (gotSHA1 && ff_pkt->flags & FO_SHA1) {
480 /* Terminate any SHA1 signature and send it to Storage daemon and the Director */
481 SHA1Final(&sha1c, signature);
482 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_SHA1_SIGNATURE);
483 Dmsg1(300, "bfiled>stored:header %s\n", sd->msg);
484 memcpy(sd->msg, signature, 20);
487 bnet_sig(sd, BNET_EOD); /* end of SHA1 */