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 get_backup_privileges(jcr, 0);
56 set_jcr_job_status(jcr, JS_Running);
58 Dmsg1(110, "bfiled: opened data connection %d to stored\n", sd->fd);
60 if (!bnet_set_buffer_size(sd, MAX_NETWORK_BUFFER_SIZE, BNET_SETBUF_WRITE)) {
61 set_jcr_job_status(jcr, JS_ErrorTerminated);
65 jcr->buf_size = sd->msglen;
66 /* Adjust for compression so that output buffer is
67 * 12 bytes + 0.1% larger than input buffer plus 18 bytes.
68 * This gives a bit extra plus room for the sparse addr if any.
69 * Note, we adjust the read size to be smaller so that the
70 * same output buffer can be used without growing it.
72 jcr->compress_buf_size = jcr->buf_size + ((jcr->buf_size+999) / 1000) + 30;
73 jcr->compress_buf = get_memory(jcr->compress_buf_size);
75 Dmsg1(100, "set_find_options ff=%p\n", jcr->ff);
76 set_find_options((FF_PKT *)jcr->ff, jcr->incremental, jcr->mtime);
77 Dmsg0(110, "start find files\n");
79 start_heartbeat_monitor(jcr);
81 /* Subroutine save_file() is called for each file */
82 if (!find_files(jcr, (FF_PKT *)jcr->ff, save_file, (void *)jcr)) {
84 set_jcr_job_status(jcr, JS_ErrorTerminated);
87 stop_heartbeat_monitor(jcr);
89 bnet_sig(sd, BNET_EOD); /* end data connection */
95 if (jcr->compress_buf) {
96 free_pool_memory(jcr->compress_buf);
97 jcr->compress_buf = NULL;
99 Dmsg1(110, "end blast_data stat=%d\n", stat);
104 * Called here by find() for each file included.
106 * *****FIXME***** add FSMs File System Modules
108 * Send the file and its data to the Storage daemon.
110 static int save_file(FF_PKT *ff_pkt, void *vjcr)
112 char attribs[MAXSTRING];
113 char attribsEx[MAXSTRING];
115 struct MD5Context md5c;
116 struct SHA1Context sha1c;
119 unsigned char signature[30]; /* large enough for either signature */
121 JCR *jcr = (JCR *)vjcr;
124 if (job_canceled(jcr)) {
128 sd = jcr->store_bsock;
129 jcr->num_files_examined++; /* bump total file count */
131 switch (ff_pkt->type) {
132 case FT_LNKSAVED: /* Hard linked, file already saved */
133 Dmsg2(130, "FT_LNKSAVED hard link: %s => %s\n", ff_pkt->fname, ff_pkt->link);
136 Dmsg1(130, "FT_REGE saving: %s\n", ff_pkt->fname);
139 Dmsg1(130, "FT_REG saving: %s\n", ff_pkt->fname);
142 Dmsg2(130, "FT_LNK saving: %s -> %s\n", ff_pkt->fname, ff_pkt->link);
145 Dmsg1(130, "FT_DIR saving: %s\n", ff_pkt->link);
148 Dmsg1(130, "FT_SPEC saving: %s\n", ff_pkt->fname);
151 Dmsg1(130, "FT_RAW saving: %s\n", ff_pkt->fname);
154 Dmsg1(130, "FT_FIFO saving: %s\n", ff_pkt->fname);
157 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not access %s: ERR=%s\n"), ff_pkt->fname,
158 strerror(ff_pkt->ff_errno));
161 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not follow link %s: ERR=%s\n"), ff_pkt->fname,
162 strerror(ff_pkt->ff_errno));
165 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not stat %s: ERR=%s\n"), ff_pkt->fname,
166 strerror(ff_pkt->ff_errno));
170 Jmsg(jcr, M_SKIPPED, -1, _(" Unchanged file skipped: %s\n"), ff_pkt->fname);
173 Jmsg(jcr, M_NOTSAVED, -1, _(" Archive file not saved: %s\n"), ff_pkt->fname);
176 Jmsg(jcr, M_SKIPPED, -1, _(" Recursion turned off. Directory skipped: %s\n"),
180 Jmsg(jcr, M_SKIPPED, -1, _(" File system change prohibited. Directory skipped. %s\n"),
184 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not open directory %s: ERR=%s\n"), ff_pkt->fname,
185 strerror(ff_pkt->ff_errno));
188 Jmsg(jcr, M_NOTSAVED, 0, _(" Unknown file type %d; not saved: %s\n"), ff_pkt->type, ff_pkt->fname);
194 /* Open any file with data that we intend to save */
195 if (ff_pkt->type != FT_LNKSAVED && (S_ISREG(ff_pkt->statp.st_mode) &&
196 ff_pkt->statp.st_size > 0) ||
197 ff_pkt->type == FT_RAW || ff_pkt->type == FT_FIFO) {
199 if (ff_pkt->type == FT_FIFO) {
200 tid = start_thread_timer(pthread_self(), 60);
204 if (bopen(&ff_pkt->bfd, ff_pkt->fname, O_RDONLY | O_BINARY, 0) < 0) {
205 ff_pkt->ff_errno = errno;
206 Jmsg(jcr, M_NOTSAVED, -1, _(" Cannot open %s: ERR=%s.\n"), ff_pkt->fname,
207 berror(&ff_pkt->bfd));
208 stop_thread_timer(tid);
211 stop_thread_timer(tid);
214 Dmsg1(130, "bfiled: sending %s to stored\n", ff_pkt->fname);
215 encode_stat(attribs, &ff_pkt->statp, ff_pkt->LinkFI);
216 stream = encode_attribsEx(jcr, attribsEx, ff_pkt);
217 Dmsg3(200, "File %s\nattribs=%s\nattribsEx=%s\n", ff_pkt->fname, attribs, attribsEx);
220 jcr->JobFiles++; /* increment number of files sent */
221 ff_pkt->FileIndex = jcr->JobFiles; /* return FileIndex */
222 pm_strcpy(&jcr->last_fname, ff_pkt->fname);
226 * Send Attributes header to Storage daemon
227 * <file-index> <stream> <info>
229 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, stream)) {
230 if (is_bopen(&ff_pkt->bfd)) {
231 bclose(&ff_pkt->bfd);
233 set_jcr_job_status(jcr, JS_ErrorTerminated);
236 Dmsg1(100, ">stored: attrhdr %s\n", sd->msg);
239 * Send file attributes to Storage daemon
242 * Filename (full path)
244 * Link name (if type==FT_LNK or FT_LNKSAVED)
245 * Encoded extended-attributes (for Win32)
247 * For a directory, link is the same as fname, but with trailing
248 * slash. For a linked file, link is the link.
250 if (ff_pkt->type == FT_LNK || ff_pkt->type == FT_LNKSAVED) {
251 Dmsg2(100, "Link %s to %s\n", ff_pkt->fname, ff_pkt->link);
252 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%s%c%s%c", jcr->JobFiles,
253 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, ff_pkt->link, 0,
255 } else if (ff_pkt->type == FT_DIR) {
256 /* Here link is the canonical filename (i.e. with trailing slash) */
257 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
258 ff_pkt->type, ff_pkt->link, 0, attribs, 0, 0, attribsEx, 0);
260 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
261 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, 0, attribsEx, 0);
264 Dmsg2(100, ">stored: attr len=%d: %s\n", sd->msglen, sd->msg);
266 if (is_bopen(&ff_pkt->bfd)) {
267 bclose(&ff_pkt->bfd);
269 set_jcr_job_status(jcr, JS_ErrorTerminated);
272 bnet_sig(sd, BNET_EOD); /* indicate end of attributes data */
275 * If the file has data, read it and send to the Storage daemon
278 if (is_bopen(&ff_pkt->bfd)) {
279 uint64_t fileAddr = 0; /* file address */
281 int rsize = jcr->buf_size; /* read buffer size */
284 rbuf = sd->msg; /* read buffer */
285 wbuf = sd->msg; /* write buffer */
287 Dmsg1(100, "Saving data, type=%d\n", ff_pkt->type);
289 if (ff_pkt->flags & FO_SPARSE) {
290 stream = STREAM_SPARSE_DATA;
292 stream = STREAM_FILE_DATA;
296 uLong compress_len, max_compress_len = 0;
297 const Bytef *cbuf = NULL;
299 if (ff_pkt->flags & FO_GZIP) {
300 if (stream == STREAM_FILE_DATA) {
301 stream = STREAM_GZIP_DATA;
303 stream = STREAM_SPARSE_GZIP_DATA;
306 if (ff_pkt->flags & FO_SPARSE) {
307 cbuf = (Bytef *)jcr->compress_buf + SPARSE_FADDR_SIZE;
308 max_compress_len = jcr->compress_buf_size - SPARSE_FADDR_SIZE;
310 cbuf = (Bytef *)jcr->compress_buf;
311 max_compress_len = jcr->compress_buf_size; /* set max length */
313 wbuf = jcr->compress_buf; /* compressed output here */
318 * Send Data header to Storage daemon
319 * <file-index> <stream> <info>
321 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, stream)) {
322 bclose(&ff_pkt->bfd);
323 set_jcr_job_status(jcr, JS_ErrorTerminated);
326 Dmsg1(100, ">stored: datahdr %s\n", sd->msg);
328 if (ff_pkt->flags & FO_MD5) {
330 } else if (ff_pkt->flags & FO_SHA1) {
335 * Make space at beginning of buffer for fileAddr because this
336 * same buffer will be used for writing if compression if off.
338 if (ff_pkt->flags & FO_SPARSE) {
339 rbuf += SPARSE_FADDR_SIZE;
340 rsize -= SPARSE_FADDR_SIZE;
346 while ((sd->msglen=bread(&ff_pkt->bfd, rbuf, rsize)) > 0) {
349 /* Check for sparse blocks */
350 if (ff_pkt->flags & FO_SPARSE) {
352 if (sd->msglen == rsize &&
353 (fileAddr+sd->msglen < (uint64_t)ff_pkt->statp.st_size)) {
354 sparseBlock = is_buf_zero(rbuf, rsize);
357 ser_begin(wbuf, SPARSE_FADDR_SIZE);
358 ser_uint64(fileAddr); /* store fileAddr in begin of buffer */
361 jcr->ReadBytes += sd->msglen; /* count bytes read */
362 fileAddr += sd->msglen;
364 /* Update MD5 if requested */
365 if (ff_pkt->flags & FO_MD5) {
366 MD5Update(&md5c, (unsigned char *)rbuf, sd->msglen);
368 } else if (ff_pkt->flags & FO_SHA1) {
369 SHA1Update(&sha1c, (unsigned char *)rbuf, sd->msglen);
374 /* Do compression if turned on */
375 if (!sparseBlock && ff_pkt->flags & FO_GZIP) {
377 compress_len = max_compress_len;
378 Dmsg4(400, "cbuf=0x%x len=%u rbuf=0x%x len=%u\n", cbuf, compress_len,
380 /* NOTE! This call modifies compress_len !!! */
381 if ((zstat=compress2((Bytef *)cbuf, &compress_len,
382 (const Bytef *)rbuf, (uLong)sd->msglen,
383 ff_pkt->GZIP_level)) != Z_OK) {
384 Jmsg(jcr, M_FATAL, 0, _("Compression error: %d\n"), zstat);
387 bclose(&ff_pkt->bfd);
388 set_jcr_job_status(jcr, JS_ErrorTerminated);
391 Dmsg2(400, "compressed len=%d uncompressed len=%d\n",
392 compress_len, sd->msglen);
394 sd->msglen = compress_len; /* set compressed length */
398 /* #ifndef FD_NO_SEND_TEST */
399 /* Send the buffer to the Storage daemon */
401 if (ff_pkt->flags & FO_SPARSE) {
402 sd->msglen += SPARSE_FADDR_SIZE; /* include fileAddr in size */
404 sd->msg = wbuf; /* set correct write buffer */
405 if (!bnet_send(sd)) {
406 sd->msg = msgsave; /* restore bnet buffer */
408 bclose(&ff_pkt->bfd);
409 set_jcr_job_status(jcr, JS_ErrorTerminated);
413 Dmsg1(130, "Send data to SD len=%d\n", sd->msglen);
415 jcr->JobBytes += sd->msglen; /* count bytes saved possibly compressed */
416 sd->msg = msgsave; /* restore read buffer */
418 } /* end while read file data */
421 if (sd->msglen < 0) {
422 Jmsg(jcr, M_ERROR, 0, _("Read error on file %s. ERR=%s\n"),
423 ff_pkt->fname, berror(&ff_pkt->bfd));
426 bclose(&ff_pkt->bfd); /* close file */
427 if (!bnet_sig(sd, BNET_EOD)) { /* indicate end of file data */
428 set_jcr_job_status(jcr, JS_ErrorTerminated);
434 /* Terminate any MD5 signature and send it to Storage daemon and the Director */
435 if (gotMD5 && ff_pkt->flags & FO_MD5) {
436 MD5Final(signature, &md5c);
437 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_MD5_SIGNATURE);
438 Dmsg1(100, "bfiled>stored:header %s\n", sd->msg);
439 memcpy(sd->msg, signature, 16);
442 bnet_sig(sd, BNET_EOD); /* end of MD5 */
444 } else if (gotSHA1 && ff_pkt->flags & FO_SHA1) {
445 /* Terminate any SHA1 signature and send it to Storage daemon and the Director */
446 SHA1Final(&sha1c, signature);
447 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_SHA1_SIGNATURE);
448 Dmsg1(100, "bfiled>stored:header %s\n", sd->msg);
449 memcpy(sd->msg, signature, 20);
452 bnet_sig(sd, BNET_EOD); /* end of SHA1 */