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);
72 jcr->buf_size = sd->msglen;
73 /* Adjust for compression so that output buffer is
74 * 12 bytes + 0.1% larger than input buffer plus 18 bytes.
75 * This gives a bit extra plus room for the sparse addr if any.
76 * Note, we adjust the read size to be smaller so that the
77 * same output buffer can be used without growing it.
79 jcr->compress_buf_size = jcr->buf_size + ((jcr->buf_size+999) / 1000) + 30;
80 jcr->compress_buf = get_memory(jcr->compress_buf_size);
82 Dmsg1(300, "set_find_options ff=%p\n", jcr->ff);
83 set_find_options((FF_PKT *)jcr->ff, jcr->incremental, jcr->mtime);
84 Dmsg0(300, "start find files\n");
86 start_heartbeat_monitor(jcr);
88 /* Subroutine save_file() is called for each file */
89 if (!find_files(jcr, (FF_PKT *)jcr->ff, save_file, (void *)jcr)) {
91 set_jcr_job_status(jcr, JS_ErrorTerminated);
94 stop_heartbeat_monitor(jcr);
96 bnet_sig(sd, BNET_EOD); /* end data connection */
102 if (jcr->compress_buf) {
103 free_pool_memory(jcr->compress_buf);
104 jcr->compress_buf = NULL;
106 Dmsg1(300, "end blast_data stat=%d\n", stat);
111 * Called here by find() for each file included.
113 * *****FIXME***** add FSMs File System Modules
115 * Send the file and its data to the Storage daemon.
117 static int save_file(FF_PKT *ff_pkt, void *vjcr)
119 char attribs[MAXSTRING];
120 char attribsEx[MAXSTRING];
121 int stat, attr_stream, data_stream;
122 struct MD5Context md5c;
123 struct SHA1Context sha1c;
126 unsigned char signature[30]; /* large enough for either signature */
128 JCR *jcr = (JCR *)vjcr;
131 if (job_canceled(jcr)) {
135 sd = jcr->store_bsock;
136 jcr->num_files_examined++; /* bump total file count */
138 switch (ff_pkt->type) {
139 case FT_LNKSAVED: /* Hard linked, file already saved */
140 Dmsg2(130, "FT_LNKSAVED hard link: %s => %s\n", ff_pkt->fname, ff_pkt->link);
143 Dmsg1(130, "FT_REGE saving: %s\n", ff_pkt->fname);
146 Dmsg1(130, "FT_REG saving: %s\n", ff_pkt->fname);
149 Dmsg2(130, "FT_LNK saving: %s -> %s\n", ff_pkt->fname, ff_pkt->link);
152 Dmsg1(130, "FT_DIR saving: %s\n", ff_pkt->link);
155 Dmsg1(130, "FT_SPEC saving: %s\n", ff_pkt->fname);
158 Dmsg1(130, "FT_RAW saving: %s\n", ff_pkt->fname);
161 Dmsg1(130, "FT_FIFO saving: %s\n", ff_pkt->fname);
164 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not access %s: ERR=%s\n"), ff_pkt->fname,
165 strerror(ff_pkt->ff_errno));
169 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not follow link %s: ERR=%s\n"), ff_pkt->fname,
170 strerror(ff_pkt->ff_errno));
174 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not stat %s: ERR=%s\n"), ff_pkt->fname,
175 strerror(ff_pkt->ff_errno));
180 Jmsg(jcr, M_SKIPPED, -1, _(" Unchanged file skipped: %s\n"), ff_pkt->fname);
183 Jmsg(jcr, M_NOTSAVED, -1, _(" Archive file not saved: %s\n"), ff_pkt->fname);
186 Jmsg(jcr, M_SKIPPED, -1, _(" Recursion turned off. Directory skipped: %s\n"),
190 Jmsg(jcr, M_SKIPPED, -1, _(" File system change prohibited. Directory skipped. %s\n"),
194 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not open directory %s: ERR=%s\n"), ff_pkt->fname,
195 strerror(ff_pkt->ff_errno));
199 Jmsg(jcr, M_NOTSAVED, 0, _(" Unknown file type %d; not saved: %s\n"), ff_pkt->type, ff_pkt->fname);
205 if (ff_pkt->flags & FO_PORTABLE) {
206 set_portable_backup(&ff_pkt->bfd); /* disable Win32 BackupRead() */
210 * Open any file with data that we intend to save.
211 * Note, if is_win32_backup, we must open the Directory so that
212 * the BackupRead will save its permissions and ownership streams.
214 if (ff_pkt->type != FT_LNKSAVED && (S_ISREG(ff_pkt->statp.st_mode) &&
215 ff_pkt->statp.st_size > 0) ||
216 ff_pkt->type == FT_RAW || ff_pkt->type == FT_FIFO ||
217 (!is_portable_backup(&ff_pkt->bfd) && ff_pkt->type == FT_DIR)) {
219 if (ff_pkt->type == FT_FIFO) {
220 tid = start_thread_timer(pthread_self(), 60);
224 if (bopen(&ff_pkt->bfd, ff_pkt->fname, O_RDONLY | O_BINARY, 0) < 0) {
225 ff_pkt->ff_errno = errno;
226 Jmsg(jcr, M_NOTSAVED, -1, _(" Cannot open %s: ERR=%s.\n"), ff_pkt->fname,
227 berror(&ff_pkt->bfd));
229 stop_thread_timer(tid);
232 stop_thread_timer(tid);
235 Dmsg1(130, "bfiled: sending %s to stored\n", ff_pkt->fname);
237 /* Find what data stream we will use, then encode the attributes */
238 data_stream = select_data_stream(ff_pkt);
239 encode_stat(attribs, ff_pkt, data_stream);
241 /* Now possibly extend the attributes */
242 attr_stream = encode_attribsEx(jcr, attribsEx, ff_pkt);
244 Dmsg3(300, "File %s\nattribs=%s\nattribsEx=%s\n", ff_pkt->fname, attribs, attribsEx);
247 jcr->JobFiles++; /* increment number of files sent */
248 ff_pkt->FileIndex = jcr->JobFiles; /* return FileIndex */
249 pm_strcpy(&jcr->last_fname, ff_pkt->fname);
253 * Send Attributes header to Storage daemon
254 * <file-index> <stream> <info>
256 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, attr_stream)) {
257 if (is_bopen(&ff_pkt->bfd)) {
258 bclose(&ff_pkt->bfd);
260 set_jcr_job_status(jcr, JS_ErrorTerminated);
263 Dmsg1(300, ">stored: attrhdr %s\n", sd->msg);
266 * Send file attributes to Storage daemon
269 * Filename (full path)
271 * Link name (if type==FT_LNK or FT_LNKSAVED)
272 * Encoded extended-attributes (for Win32)
274 * For a directory, link is the same as fname, but with trailing
275 * slash. For a linked file, link is the link.
277 if (ff_pkt->type == FT_LNK || ff_pkt->type == FT_LNKSAVED) {
278 Dmsg2(300, "Link %s to %s\n", ff_pkt->fname, ff_pkt->link);
279 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%s%c%s%c", jcr->JobFiles,
280 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, ff_pkt->link, 0,
282 } else if (ff_pkt->type == FT_DIR) {
283 /* Here link is the canonical filename (i.e. with trailing slash) */
284 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
285 ff_pkt->type, ff_pkt->link, 0, attribs, 0, 0, attribsEx, 0);
287 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
288 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, 0, attribsEx, 0);
291 Dmsg2(300, ">stored: attr len=%d: %s\n", sd->msglen, sd->msg);
293 if (is_bopen(&ff_pkt->bfd)) {
294 bclose(&ff_pkt->bfd);
296 set_jcr_job_status(jcr, JS_ErrorTerminated);
299 bnet_sig(sd, BNET_EOD); /* indicate end of attributes data */
302 * If the file has data, read it and send to the Storage daemon
305 if (is_bopen(&ff_pkt->bfd)) {
306 uint64_t fileAddr = 0; /* file address */
308 int rsize = jcr->buf_size; /* read buffer size */
311 rbuf = sd->msg; /* read buffer */
312 wbuf = sd->msg; /* write buffer */
315 Dmsg1(300, "Saving data, type=%d\n", ff_pkt->type);
319 uLong compress_len, max_compress_len = 0;
320 const Bytef *cbuf = NULL;
322 if (ff_pkt->flags & FO_GZIP) {
323 if (ff_pkt->flags & FO_SPARSE) {
324 cbuf = (Bytef *)jcr->compress_buf + SPARSE_FADDR_SIZE;
325 max_compress_len = jcr->compress_buf_size - SPARSE_FADDR_SIZE;
327 cbuf = (Bytef *)jcr->compress_buf;
328 max_compress_len = jcr->compress_buf_size; /* set max length */
330 wbuf = jcr->compress_buf; /* compressed output here */
335 * Send Data header to Storage daemon
336 * <file-index> <stream> <info>
338 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, data_stream)) {
339 bclose(&ff_pkt->bfd);
340 set_jcr_job_status(jcr, JS_ErrorTerminated);
343 Dmsg1(300, ">stored: datahdr %s\n", sd->msg);
345 if (ff_pkt->flags & FO_MD5) {
347 } else if (ff_pkt->flags & FO_SHA1) {
352 * Make space at beginning of buffer for fileAddr because this
353 * same buffer will be used for writing if compression if off.
355 if (ff_pkt->flags & FO_SPARSE) {
356 rbuf += SPARSE_FADDR_SIZE;
357 rsize -= SPARSE_FADDR_SIZE;
358 #ifdef HAVE_FREEBSD_OS
360 * To read FreeBSD partitions, the read size must be
363 rsize = (rsize/512) * 512;
370 while ((sd->msglen=(uint32_t)bread(&ff_pkt->bfd, rbuf, rsize)) > 0) {
373 /* Check for sparse blocks */
374 if (ff_pkt->flags & FO_SPARSE) {
376 if (sd->msglen == rsize &&
377 (fileAddr+sd->msglen < (uint64_t)ff_pkt->statp.st_size)) {
378 sparseBlock = is_buf_zero(rbuf, rsize);
381 ser_begin(wbuf, SPARSE_FADDR_SIZE);
382 ser_uint64(fileAddr); /* store fileAddr in begin of buffer */
385 jcr->ReadBytes += sd->msglen; /* count bytes read */
386 fileAddr += sd->msglen;
388 /* Update MD5 if requested */
389 if (ff_pkt->flags & FO_MD5) {
390 MD5Update(&md5c, (unsigned char *)rbuf, sd->msglen);
392 } else if (ff_pkt->flags & FO_SHA1) {
393 SHA1Update(&sha1c, (unsigned char *)rbuf, sd->msglen);
398 /* Do compression if turned on */
399 if (!sparseBlock && ff_pkt->flags & FO_GZIP) {
401 compress_len = max_compress_len;
402 Dmsg4(400, "cbuf=0x%x len=%u rbuf=0x%x len=%u\n", cbuf, compress_len,
404 /* NOTE! This call modifies compress_len !!! */
405 if ((zstat=compress2((Bytef *)cbuf, &compress_len,
406 (const Bytef *)rbuf, (uLong)sd->msglen,
407 ff_pkt->GZIP_level)) != Z_OK) {
408 Jmsg(jcr, M_FATAL, 0, _("Compression error: %d\n"), zstat);
411 bclose(&ff_pkt->bfd);
412 set_jcr_job_status(jcr, JS_ErrorTerminated);
415 Dmsg2(400, "compressed len=%d uncompressed len=%d\n",
416 compress_len, sd->msglen);
418 sd->msglen = compress_len; /* set compressed length */
422 /* Send the buffer to the Storage daemon */
424 if (ff_pkt->flags & FO_SPARSE) {
425 sd->msglen += SPARSE_FADDR_SIZE; /* include fileAddr in size */
427 sd->msg = wbuf; /* set correct write buffer */
428 if (!bnet_send(sd)) {
429 sd->msg = msgsave; /* restore bnet buffer */
431 bclose(&ff_pkt->bfd);
432 set_jcr_job_status(jcr, JS_ErrorTerminated);
436 Dmsg1(130, "Send data to SD len=%d\n", sd->msglen);
438 jcr->JobBytes += sd->msglen; /* count bytes saved possibly compressed */
439 sd->msg = msgsave; /* restore read buffer */
441 } /* end while read file data */
444 if (sd->msglen < 0) {
445 Jmsg(jcr, M_ERROR, 0, _("Read error on file %s. ERR=%s\n"),
446 ff_pkt->fname, berror(&ff_pkt->bfd));
449 bclose(&ff_pkt->bfd); /* close file */
450 if (!bnet_sig(sd, BNET_EOD)) { /* indicate end of file data */
451 set_jcr_job_status(jcr, JS_ErrorTerminated);
456 /* Terminate any MD5 signature and send it to Storage daemon and the Director */
457 if (gotMD5 && ff_pkt->flags & FO_MD5) {
458 MD5Final(signature, &md5c);
459 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_MD5_SIGNATURE);
460 Dmsg1(300, "bfiled>stored:header %s\n", sd->msg);
461 memcpy(sd->msg, signature, 16);
464 bnet_sig(sd, BNET_EOD); /* end of MD5 */
467 } else if (gotSHA1 && ff_pkt->flags & FO_SHA1) {
468 /* Terminate any SHA1 signature and send it to Storage daemon and the Director */
469 SHA1Final(&sha1c, signature);
470 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_SHA1_SIGNATURE);
471 Dmsg1(300, "bfiled>stored:header %s\n", sd->msg);
472 memcpy(sd->msg, signature, 20);
475 bnet_sig(sd, BNET_EOD); /* end of SHA1 */