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, jcr->mtime_only);
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;
97 Dmsg1(110, "end blast_data stat=%d\n", stat);
102 * Called here by find() for each file included.
104 * *****FIXME***** add FSMs File System Modules
106 * Send the file and its data to the Storage daemon.
108 static int save_file(FF_PKT *ff_pkt, void *vjcr)
110 char attribs[MAXSTRING];
111 char attribsEx[MAXSTRING];
112 int stat, attr_stream, data_stream;
113 struct MD5Context md5c;
114 struct SHA1Context sha1c;
117 unsigned char signature[30]; /* large enough for either signature */
119 JCR *jcr = (JCR *)vjcr;
122 if (job_canceled(jcr)) {
126 sd = jcr->store_bsock;
127 jcr->num_files_examined++; /* bump total file count */
129 switch (ff_pkt->type) {
130 case FT_LNKSAVED: /* Hard linked, file already saved */
131 Dmsg2(130, "FT_LNKSAVED hard link: %s => %s\n", ff_pkt->fname, ff_pkt->link);
134 Dmsg1(130, "FT_REGE saving: %s\n", ff_pkt->fname);
137 Dmsg1(130, "FT_REG saving: %s\n", ff_pkt->fname);
140 Dmsg2(130, "FT_LNK saving: %s -> %s\n", ff_pkt->fname, ff_pkt->link);
143 Dmsg1(130, "FT_DIR saving: %s\n", ff_pkt->link);
146 Dmsg1(130, "FT_SPEC saving: %s\n", ff_pkt->fname);
149 Dmsg1(130, "FT_RAW saving: %s\n", ff_pkt->fname);
152 Dmsg1(130, "FT_FIFO saving: %s\n", ff_pkt->fname);
155 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not access %s: ERR=%s\n"), ff_pkt->fname,
156 strerror(ff_pkt->ff_errno));
160 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not follow link %s: ERR=%s\n"), ff_pkt->fname,
161 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));
171 Jmsg(jcr, M_SKIPPED, -1, _(" Unchanged file skipped: %s\n"), ff_pkt->fname);
174 Jmsg(jcr, M_NOTSAVED, -1, _(" Archive file not saved: %s\n"), ff_pkt->fname);
177 Jmsg(jcr, M_SKIPPED, -1, _(" Recursion turned off. Directory skipped: %s\n"),
181 Jmsg(jcr, M_SKIPPED, -1, _(" File system change prohibited. Directory skipped. %s\n"),
185 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not open directory %s: ERR=%s\n"), ff_pkt->fname,
186 strerror(ff_pkt->ff_errno));
190 Jmsg(jcr, M_NOTSAVED, 0, _(" Unknown file type %d; not saved: %s\n"), ff_pkt->type, ff_pkt->fname);
196 if (ff_pkt->flags & FO_PORTABLE) {
197 set_portable_backup(&ff_pkt->bfd); /* disable Win32 BackupRead() */
201 * Open any file with data that we intend to save.
202 * Note, if is_win32_backup, we must open the Directory so that
203 * the BackupRead will save its permissions and ownership streams.
205 if (ff_pkt->type != FT_LNKSAVED && (S_ISREG(ff_pkt->statp.st_mode) &&
206 ff_pkt->statp.st_size > 0) ||
207 ff_pkt->type == FT_RAW || ff_pkt->type == FT_FIFO ||
208 (!is_portable_backup(&ff_pkt->bfd) && ff_pkt->type == FT_DIR)) {
210 if (ff_pkt->type == FT_FIFO) {
211 tid = start_thread_timer(pthread_self(), 60);
215 if (bopen(&ff_pkt->bfd, ff_pkt->fname, O_RDONLY | O_BINARY, 0) < 0) {
216 ff_pkt->ff_errno = errno;
217 Jmsg(jcr, M_NOTSAVED, -1, _(" Cannot open %s: ERR=%s.\n"), ff_pkt->fname,
218 berror(&ff_pkt->bfd));
220 stop_thread_timer(tid);
223 stop_thread_timer(tid);
226 Dmsg1(130, "bfiled: sending %s to stored\n", ff_pkt->fname);
228 /* Find what data stream we will use, then encode the attributes */
229 data_stream = select_data_stream(ff_pkt);
230 encode_stat(attribs, ff_pkt, data_stream);
232 /* Now possibly extend the attributes */
233 attr_stream = encode_attribsEx(jcr, attribsEx, ff_pkt);
235 Dmsg3(200, "File %s\nattribs=%s\nattribsEx=%s\n", ff_pkt->fname, attribs, attribsEx);
238 jcr->JobFiles++; /* increment number of files sent */
239 ff_pkt->FileIndex = jcr->JobFiles; /* return FileIndex */
240 pm_strcpy(&jcr->last_fname, ff_pkt->fname);
244 * Send Attributes header to Storage daemon
245 * <file-index> <stream> <info>
247 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, attr_stream)) {
248 if (is_bopen(&ff_pkt->bfd)) {
249 bclose(&ff_pkt->bfd);
251 set_jcr_job_status(jcr, JS_ErrorTerminated);
254 Dmsg1(100, ">stored: attrhdr %s\n", sd->msg);
257 * Send file attributes to Storage daemon
260 * Filename (full path)
262 * Link name (if type==FT_LNK or FT_LNKSAVED)
263 * Encoded extended-attributes (for Win32)
265 * For a directory, link is the same as fname, but with trailing
266 * slash. For a linked file, link is the link.
268 if (ff_pkt->type == FT_LNK || ff_pkt->type == FT_LNKSAVED) {
269 Dmsg2(100, "Link %s to %s\n", ff_pkt->fname, ff_pkt->link);
270 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%s%c%s%c", jcr->JobFiles,
271 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, ff_pkt->link, 0,
273 } else if (ff_pkt->type == FT_DIR) {
274 /* Here link is the canonical filename (i.e. with trailing slash) */
275 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
276 ff_pkt->type, ff_pkt->link, 0, attribs, 0, 0, attribsEx, 0);
278 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
279 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, 0, attribsEx, 0);
282 Dmsg2(100, ">stored: attr len=%d: %s\n", sd->msglen, sd->msg);
284 if (is_bopen(&ff_pkt->bfd)) {
285 bclose(&ff_pkt->bfd);
287 set_jcr_job_status(jcr, JS_ErrorTerminated);
290 bnet_sig(sd, BNET_EOD); /* indicate end of attributes data */
293 * If the file has data, read it and send to the Storage daemon
296 if (is_bopen(&ff_pkt->bfd)) {
297 uint64_t fileAddr = 0; /* file address */
299 int rsize = jcr->buf_size; /* read buffer size */
302 rbuf = sd->msg; /* read buffer */
303 wbuf = sd->msg; /* write buffer */
306 Dmsg1(100, "Saving data, type=%d\n", ff_pkt->type);
310 uLong compress_len, max_compress_len = 0;
311 const Bytef *cbuf = NULL;
313 if (ff_pkt->flags & FO_GZIP) {
314 if (ff_pkt->flags & FO_SPARSE) {
315 cbuf = (Bytef *)jcr->compress_buf + SPARSE_FADDR_SIZE;
316 max_compress_len = jcr->compress_buf_size - SPARSE_FADDR_SIZE;
318 cbuf = (Bytef *)jcr->compress_buf;
319 max_compress_len = jcr->compress_buf_size; /* set max length */
321 wbuf = jcr->compress_buf; /* compressed output here */
326 * Send Data header to Storage daemon
327 * <file-index> <stream> <info>
329 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, data_stream)) {
330 bclose(&ff_pkt->bfd);
331 set_jcr_job_status(jcr, JS_ErrorTerminated);
334 Dmsg1(100, ">stored: datahdr %s\n", sd->msg);
336 if (ff_pkt->flags & FO_MD5) {
338 } else if (ff_pkt->flags & FO_SHA1) {
343 * Make space at beginning of buffer for fileAddr because this
344 * same buffer will be used for writing if compression if off.
346 if (ff_pkt->flags & FO_SPARSE) {
347 rbuf += SPARSE_FADDR_SIZE;
348 rsize -= SPARSE_FADDR_SIZE;
349 #ifdef HAVE_FREEBSD_OS
351 * To read FreeBSD partitions, the read size must be
354 rsize = (rsize/512) * 512;
361 while ((sd->msglen=bread(&ff_pkt->bfd, rbuf, rsize)) > 0) {
364 /* Check for sparse blocks */
365 if (ff_pkt->flags & FO_SPARSE) {
367 if (sd->msglen == rsize &&
368 (fileAddr+sd->msglen < (uint64_t)ff_pkt->statp.st_size)) {
369 sparseBlock = is_buf_zero(rbuf, rsize);
372 ser_begin(wbuf, SPARSE_FADDR_SIZE);
373 ser_uint64(fileAddr); /* store fileAddr in begin of buffer */
376 jcr->ReadBytes += sd->msglen; /* count bytes read */
377 fileAddr += sd->msglen;
379 /* Update MD5 if requested */
380 if (ff_pkt->flags & FO_MD5) {
381 MD5Update(&md5c, (unsigned char *)rbuf, sd->msglen);
383 } else if (ff_pkt->flags & FO_SHA1) {
384 SHA1Update(&sha1c, (unsigned char *)rbuf, sd->msglen);
389 /* Do compression if turned on */
390 if (!sparseBlock && ff_pkt->flags & FO_GZIP) {
392 compress_len = max_compress_len;
393 Dmsg4(400, "cbuf=0x%x len=%u rbuf=0x%x len=%u\n", cbuf, compress_len,
395 /* NOTE! This call modifies compress_len !!! */
396 if ((zstat=compress2((Bytef *)cbuf, &compress_len,
397 (const Bytef *)rbuf, (uLong)sd->msglen,
398 ff_pkt->GZIP_level)) != Z_OK) {
399 Jmsg(jcr, M_FATAL, 0, _("Compression error: %d\n"), zstat);
402 bclose(&ff_pkt->bfd);
403 set_jcr_job_status(jcr, JS_ErrorTerminated);
406 Dmsg2(400, "compressed len=%d uncompressed len=%d\n",
407 compress_len, sd->msglen);
409 sd->msglen = compress_len; /* set compressed length */
413 /* Send the buffer to the Storage daemon */
415 if (ff_pkt->flags & FO_SPARSE) {
416 sd->msglen += SPARSE_FADDR_SIZE; /* include fileAddr in size */
418 sd->msg = wbuf; /* set correct write buffer */
419 if (!bnet_send(sd)) {
420 sd->msg = msgsave; /* restore bnet buffer */
422 bclose(&ff_pkt->bfd);
423 set_jcr_job_status(jcr, JS_ErrorTerminated);
427 Dmsg1(130, "Send data to SD len=%d\n", sd->msglen);
429 jcr->JobBytes += sd->msglen; /* count bytes saved possibly compressed */
430 sd->msg = msgsave; /* restore read buffer */
432 } /* end while read file data */
435 if (sd->msglen < 0) {
436 Jmsg(jcr, M_ERROR, 0, _("Read error on file %s. ERR=%s\n"),
437 ff_pkt->fname, berror(&ff_pkt->bfd));
440 bclose(&ff_pkt->bfd); /* close file */
441 if (!bnet_sig(sd, BNET_EOD)) { /* indicate end of file data */
442 set_jcr_job_status(jcr, JS_ErrorTerminated);
447 /* Terminate any MD5 signature and send it to Storage daemon and the Director */
448 if (gotMD5 && ff_pkt->flags & FO_MD5) {
449 MD5Final(signature, &md5c);
450 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_MD5_SIGNATURE);
451 Dmsg1(100, "bfiled>stored:header %s\n", sd->msg);
452 memcpy(sd->msg, signature, 16);
455 bnet_sig(sd, BNET_EOD); /* end of MD5 */
458 } else if (gotSHA1 && ff_pkt->flags & FO_SHA1) {
459 /* Terminate any SHA1 signature and send it to Storage daemon and the Director */
460 SHA1Final(&sha1c, signature);
461 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_SHA1_SIGNATURE);
462 Dmsg1(100, "bfiled>stored:header %s\n", sd->msg);
463 memcpy(sd->msg, signature, 20);
466 bnet_sig(sd, BNET_EOD); /* end of SHA1 */