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(110, "bfiled: opened data connection %d to stored\n", sd->fd);
58 if (!bnet_set_buffer_size(sd, MAX_NETWORK_BUFFER_SIZE, BNET_SETBUF_WRITE)) {
59 set_jcr_job_status(jcr, JS_ErrorTerminated);
63 jcr->buf_size = sd->msglen;
64 /* Adjust for compression so that output buffer is
65 * 12 bytes + 0.1% larger than input buffer plus 18 bytes.
66 * This gives a bit extra plus room for the sparse addr if any.
67 * Note, we adjust the read size to be smaller so that the
68 * same output buffer can be used without growing it.
70 jcr->compress_buf_size = jcr->buf_size + ((jcr->buf_size+999) / 1000) + 30;
71 jcr->compress_buf = get_memory(jcr->compress_buf_size);
73 Dmsg1(100, "set_find_options ff=%p\n", jcr->ff);
74 set_find_options((FF_PKT *)jcr->ff, jcr->incremental, jcr->mtime);
75 Dmsg0(110, "start find files\n");
77 start_heartbeat_monitor(jcr);
79 /* Subroutine save_file() is called for each file */
80 if (!find_files(jcr, (FF_PKT *)jcr->ff, save_file, (void *)jcr)) {
82 set_jcr_job_status(jcr, JS_ErrorTerminated);
85 stop_heartbeat_monitor(jcr);
87 bnet_sig(sd, BNET_EOD); /* end data connection */
93 if (jcr->compress_buf) {
94 free_pool_memory(jcr->compress_buf);
95 jcr->compress_buf = NULL;
101 * Called here by find() for each file included.
103 * *****FIXME***** add FSMs File System Modules
105 * Send the file and its data to the Storage daemon.
107 static int save_file(FF_PKT *ff_pkt, void *vjcr)
109 char attribs[MAXSTRING];
110 char attribsEx[MAXSTRING];
112 struct MD5Context md5c;
113 struct SHA1Context sha1c;
116 unsigned char signature[30]; /* large enough for either signature */
118 JCR *jcr = (JCR *)vjcr;
121 if (job_canceled(jcr)) {
125 sd = jcr->store_bsock;
126 jcr->num_files_examined++; /* bump total file count */
128 switch (ff_pkt->type) {
129 case FT_LNKSAVED: /* Hard linked, file already saved */
130 Dmsg2(130, "FT_LNKSAVED hard link: %s => %s\n", ff_pkt->fname, ff_pkt->link);
133 Dmsg1(130, "FT_REGE saving: %s\n", ff_pkt->fname);
136 Dmsg1(130, "FT_REG saving: %s\n", ff_pkt->fname);
139 Dmsg2(130, "FT_LNK saving: %s -> %s\n", ff_pkt->fname, ff_pkt->link);
142 Dmsg1(130, "FT_DIR saving: %s\n", ff_pkt->link);
145 Dmsg1(130, "FT_SPEC saving: %s\n", ff_pkt->fname);
148 Dmsg1(130, "FT_RAW saving: %s\n", ff_pkt->fname);
151 Dmsg1(130, "FT_FIFO saving: %s\n", ff_pkt->fname);
154 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not access %s: ERR=%s\n"), ff_pkt->fname,
155 strerror(ff_pkt->ff_errno));
158 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not follow link %s: ERR=%s\n"), ff_pkt->fname,
159 strerror(ff_pkt->ff_errno));
162 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not stat %s: ERR=%s\n"), ff_pkt->fname,
163 strerror(ff_pkt->ff_errno));
167 Jmsg(jcr, M_SKIPPED, -1, _(" Unchanged file skipped: %s\n"), ff_pkt->fname);
170 Jmsg(jcr, M_NOTSAVED, -1, _(" Archive file not saved: %s\n"), ff_pkt->fname);
173 Jmsg(jcr, M_SKIPPED, -1, _(" Recursion turned off. Directory skipped: %s\n"),
177 Jmsg(jcr, M_SKIPPED, -1, _(" File system change prohibited. Directory skipped. %s\n"),
181 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not open directory %s: ERR=%s\n"), ff_pkt->fname,
182 strerror(ff_pkt->ff_errno));
185 Jmsg(jcr, M_NOTSAVED, 0, _(" Unknown file type %d; not saved: %s\n"), ff_pkt->type, ff_pkt->fname);
189 binit(&ff_pkt->bfd, jcr->use_win_backup_api);
191 /* Open any file with data that we intend to save */
192 if (ff_pkt->type != FT_LNKSAVED && (S_ISREG(ff_pkt->statp.st_mode) &&
193 ff_pkt->statp.st_size > 0) ||
194 ff_pkt->type == FT_RAW || ff_pkt->type == FT_FIFO) {
196 if (ff_pkt->type == FT_FIFO) {
197 tid = start_thread_timer(pthread_self(), 60);
201 if (bopen(&ff_pkt->bfd, ff_pkt->fname, O_RDONLY | O_BINARY, 0) < 0) {
202 ff_pkt->ff_errno = errno;
203 Jmsg(jcr, M_NOTSAVED, -1, _(" Cannot open %s: ERR=%s.\n"), ff_pkt->fname,
204 berror(&ff_pkt->bfd));
205 stop_thread_timer(tid);
208 stop_thread_timer(tid);
211 Dmsg1(130, "bfiled: sending %s to stored\n", ff_pkt->fname);
212 encode_stat(attribs, &ff_pkt->statp, ff_pkt->LinkFI);
213 stream = encode_attribsEx(jcr, attribsEx, ff_pkt);
214 Dmsg3(200, "File %s\nattribs=%s\nattribsEx=%s\n", ff_pkt->fname, attribs, attribsEx);
217 jcr->JobFiles++; /* increment number of files sent */
218 ff_pkt->FileIndex = jcr->JobFiles; /* return FileIndex */
219 pm_strcpy(&jcr->last_fname, ff_pkt->fname);
223 * Send Attributes header to Storage daemon
224 * <file-index> <stream> <info>
226 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, stream)) {
227 if (is_bopen(&ff_pkt->bfd)) {
228 bclose(&ff_pkt->bfd);
230 set_jcr_job_status(jcr, JS_ErrorTerminated);
233 Dmsg1(100, ">stored: attrhdr %s\n", sd->msg);
236 * Send file attributes to Storage daemon
239 * Filename (full path)
241 * Link name (if type==FT_LNK or FT_LNKSAVED)
242 * Encoded extended-attributes (for Win32)
244 * For a directory, link is the same as fname, but with trailing
245 * slash. For a linked file, link is the link.
247 if (ff_pkt->type == FT_LNK || ff_pkt->type == FT_LNKSAVED) {
248 Dmsg2(100, "Link %s to %s\n", ff_pkt->fname, ff_pkt->link);
249 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%s%c%s%c", jcr->JobFiles,
250 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, ff_pkt->link, 0,
252 } else if (ff_pkt->type == FT_DIR) {
253 /* Here link is the canonical filename (i.e. with trailing slash) */
254 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
255 ff_pkt->type, ff_pkt->link, 0, attribs, 0, 0, attribsEx, 0);
257 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
258 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, 0, attribsEx, 0);
261 Dmsg2(100, ">stored: attr len=%d: %s\n", sd->msglen, sd->msg);
263 if (is_bopen(&ff_pkt->bfd)) {
264 bclose(&ff_pkt->bfd);
266 set_jcr_job_status(jcr, JS_ErrorTerminated);
269 bnet_sig(sd, BNET_EOD); /* indicate end of attributes data */
272 * If the file has data, read it and send to the Storage daemon
275 if (is_bopen(&ff_pkt->bfd)) {
276 uint64_t fileAddr = 0; /* file address */
278 int rsize = jcr->buf_size; /* read buffer size */
281 rbuf = sd->msg; /* read buffer */
282 wbuf = sd->msg; /* write buffer */
284 Dmsg1(100, "Saving data, type=%d\n", ff_pkt->type);
286 if (ff_pkt->flags & FO_SPARSE) {
287 stream = STREAM_SPARSE_DATA;
289 stream = STREAM_FILE_DATA;
293 uLong compress_len, max_compress_len = 0;
294 const Bytef *cbuf = NULL;
296 if (ff_pkt->flags & FO_GZIP) {
297 if (stream == STREAM_FILE_DATA) {
298 stream = STREAM_GZIP_DATA;
300 stream = STREAM_SPARSE_GZIP_DATA;
303 if (ff_pkt->flags & FO_SPARSE) {
304 cbuf = (Bytef *)jcr->compress_buf + SPARSE_FADDR_SIZE;
305 max_compress_len = jcr->compress_buf_size - SPARSE_FADDR_SIZE;
307 cbuf = (Bytef *)jcr->compress_buf;
308 max_compress_len = jcr->compress_buf_size; /* set max length */
310 wbuf = jcr->compress_buf; /* compressed output here */
315 * Send Data header to Storage daemon
316 * <file-index> <stream> <info>
318 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, stream)) {
319 bclose(&ff_pkt->bfd);
320 set_jcr_job_status(jcr, JS_ErrorTerminated);
323 Dmsg1(100, ">stored: datahdr %s\n", sd->msg);
325 if (ff_pkt->flags & FO_MD5) {
327 } else if (ff_pkt->flags & FO_SHA1) {
332 * Make space at beginning of buffer for fileAddr because this
333 * same buffer will be used for writing if compression if off.
335 if (ff_pkt->flags & FO_SPARSE) {
336 rbuf += SPARSE_FADDR_SIZE;
337 rsize -= SPARSE_FADDR_SIZE;
343 while ((sd->msglen=bread(&ff_pkt->bfd, rbuf, rsize)) > 0) {
346 /* Check for sparse blocks */
347 if (ff_pkt->flags & FO_SPARSE) {
349 if (sd->msglen == rsize &&
350 (fileAddr+sd->msglen < (uint64_t)ff_pkt->statp.st_size)) {
351 sparseBlock = is_buf_zero(rbuf, rsize);
354 ser_begin(wbuf, SPARSE_FADDR_SIZE);
355 ser_uint64(fileAddr); /* store fileAddr in begin of buffer */
358 jcr->ReadBytes += sd->msglen; /* count bytes read */
359 fileAddr += sd->msglen;
361 /* Update MD5 if requested */
362 if (ff_pkt->flags & FO_MD5) {
363 MD5Update(&md5c, (unsigned char *)rbuf, sd->msglen);
365 } else if (ff_pkt->flags & FO_SHA1) {
366 SHA1Update(&sha1c, (unsigned char *)rbuf, sd->msglen);
371 /* Do compression if turned on */
372 if (!sparseBlock && ff_pkt->flags & FO_GZIP) {
374 compress_len = max_compress_len;
375 Dmsg4(400, "cbuf=0x%x len=%u rbuf=0x%x len=%u\n", cbuf, compress_len,
377 /* NOTE! This call modifies compress_len !!! */
378 if ((zstat=compress2((Bytef *)cbuf, &compress_len,
379 (const Bytef *)rbuf, (uLong)sd->msglen,
380 ff_pkt->GZIP_level)) != Z_OK) {
381 Jmsg(jcr, M_FATAL, 0, _("Compression error: %d\n"), zstat);
384 bclose(&ff_pkt->bfd);
385 set_jcr_job_status(jcr, JS_ErrorTerminated);
388 Dmsg2(400, "compressed len=%d uncompressed len=%d\n",
389 compress_len, sd->msglen);
391 sd->msglen = compress_len; /* set compressed length */
395 /* #ifndef FD_NO_SEND_TEST */
396 /* Send the buffer to the Storage daemon */
398 if (ff_pkt->flags & FO_SPARSE) {
399 sd->msglen += SPARSE_FADDR_SIZE; /* include fileAddr in size */
401 sd->msg = wbuf; /* set correct write buffer */
402 if (!bnet_send(sd)) {
403 sd->msg = msgsave; /* restore bnet buffer */
405 bclose(&ff_pkt->bfd);
406 set_jcr_job_status(jcr, JS_ErrorTerminated);
410 Dmsg1(130, "Send data to SD len=%d\n", sd->msglen);
412 jcr->JobBytes += sd->msglen; /* count bytes saved possibly compressed */
413 sd->msg = msgsave; /* restore read buffer */
415 } /* end while read file data */
418 if (sd->msglen < 0) {
419 Jmsg(jcr, M_ERROR, 0, _("Read error on file %s. ERR=%s\n"),
420 ff_pkt->fname, berror(&ff_pkt->bfd));
423 bclose(&ff_pkt->bfd); /* close file */
424 if (!bnet_sig(sd, BNET_EOD)) { /* indicate end of file data */
425 set_jcr_job_status(jcr, JS_ErrorTerminated);
431 /* Terminate any MD5 signature and send it to Storage daemon and the Director */
432 if (gotMD5 && ff_pkt->flags & FO_MD5) {
433 MD5Final(signature, &md5c);
434 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_MD5_SIGNATURE);
435 Dmsg1(100, "bfiled>stored:header %s\n", sd->msg);
436 memcpy(sd->msg, signature, 16);
439 bnet_sig(sd, BNET_EOD); /* end of MD5 */
441 } else if (gotSHA1 && ff_pkt->flags & FO_SHA1) {
442 /* Terminate any SHA1 signature and send it to Storage daemon and the Director */
443 SHA1Final(&sha1c, signature);
444 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_SHA1_SIGNATURE);
445 Dmsg1(100, "bfiled>stored:header %s\n", sd->msg);
446 memcpy(sd->msg, signature, 20);
449 bnet_sig(sd, BNET_EOD); /* end of SHA1 */