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;
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];
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));
159 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not follow link %s: ERR=%s\n"), ff_pkt->fname,
160 strerror(ff_pkt->ff_errno));
163 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not stat %s: ERR=%s\n"), ff_pkt->fname,
164 strerror(ff_pkt->ff_errno));
168 Jmsg(jcr, M_SKIPPED, -1, _(" Unchanged file skipped: %s\n"), ff_pkt->fname);
171 Jmsg(jcr, M_NOTSAVED, -1, _(" Archive file not saved: %s\n"), ff_pkt->fname);
174 Jmsg(jcr, M_SKIPPED, -1, _(" Recursion turned off. Directory skipped: %s\n"),
178 Jmsg(jcr, M_SKIPPED, -1, _(" File system change prohibited. Directory skipped. %s\n"),
182 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not open directory %s: ERR=%s\n"), ff_pkt->fname,
183 strerror(ff_pkt->ff_errno));
186 Jmsg(jcr, M_NOTSAVED, 0, _(" Unknown file type %d; not saved: %s\n"), ff_pkt->type, ff_pkt->fname);
192 /* Open any file with data that we intend to save */
193 if (ff_pkt->type != FT_LNKSAVED && (S_ISREG(ff_pkt->statp.st_mode) &&
194 ff_pkt->statp.st_size > 0) ||
195 ff_pkt->type == FT_RAW || ff_pkt->type == FT_FIFO
197 || ff_pkt->type == FT_DIR
201 if (ff_pkt->type == FT_FIFO) {
202 tid = start_thread_timer(pthread_self(), 60);
206 if (bopen(&ff_pkt->bfd, ff_pkt->fname, O_RDONLY | O_BINARY, 0) < 0) {
207 ff_pkt->ff_errno = errno;
208 Jmsg(jcr, M_NOTSAVED, -1, _(" Cannot open %s: ERR=%s.\n"), ff_pkt->fname,
209 berror(&ff_pkt->bfd));
210 stop_thread_timer(tid);
213 stop_thread_timer(tid);
216 Dmsg1(130, "bfiled: sending %s to stored\n", ff_pkt->fname);
217 encode_stat(attribs, &ff_pkt->statp, ff_pkt->LinkFI);
218 stream = encode_attribsEx(jcr, attribsEx, ff_pkt);
219 Dmsg3(200, "File %s\nattribs=%s\nattribsEx=%s\n", ff_pkt->fname, attribs, attribsEx);
222 jcr->JobFiles++; /* increment number of files sent */
223 ff_pkt->FileIndex = jcr->JobFiles; /* return FileIndex */
224 pm_strcpy(&jcr->last_fname, ff_pkt->fname);
228 * Send Attributes header to Storage daemon
229 * <file-index> <stream> <info>
231 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, stream)) {
232 if (is_bopen(&ff_pkt->bfd)) {
233 bclose(&ff_pkt->bfd);
235 set_jcr_job_status(jcr, JS_ErrorTerminated);
238 Dmsg1(100, ">stored: attrhdr %s\n", sd->msg);
241 * Send file attributes to Storage daemon
244 * Filename (full path)
246 * Link name (if type==FT_LNK or FT_LNKSAVED)
247 * Encoded extended-attributes (for Win32)
249 * For a directory, link is the same as fname, but with trailing
250 * slash. For a linked file, link is the link.
252 if (ff_pkt->type == FT_LNK || ff_pkt->type == FT_LNKSAVED) {
253 Dmsg2(100, "Link %s to %s\n", ff_pkt->fname, ff_pkt->link);
254 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%s%c%s%c", jcr->JobFiles,
255 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, ff_pkt->link, 0,
257 } else if (ff_pkt->type == FT_DIR) {
258 /* Here link is the canonical filename (i.e. with trailing slash) */
259 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
260 ff_pkt->type, ff_pkt->link, 0, attribs, 0, 0, attribsEx, 0);
262 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
263 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, 0, attribsEx, 0);
266 Dmsg2(100, ">stored: attr len=%d: %s\n", sd->msglen, sd->msg);
268 if (is_bopen(&ff_pkt->bfd)) {
269 bclose(&ff_pkt->bfd);
271 set_jcr_job_status(jcr, JS_ErrorTerminated);
274 bnet_sig(sd, BNET_EOD); /* indicate end of attributes data */
277 * If the file has data, read it and send to the Storage daemon
280 if (is_bopen(&ff_pkt->bfd)) {
281 uint64_t fileAddr = 0; /* file address */
283 int rsize = jcr->buf_size; /* read buffer size */
286 rbuf = sd->msg; /* read buffer */
287 wbuf = sd->msg; /* write buffer */
289 Dmsg1(100, "Saving data, type=%d\n", ff_pkt->type);
291 /* Note, no sparse option for win32_data */
292 if (is_win32_data(&ff_pkt->bfd)) {
293 stream = STREAM_WIN32_DATA;
294 ff_pkt->flags &= ~FO_SPARSE;
295 } else if (ff_pkt->flags & FO_SPARSE) {
296 stream = STREAM_SPARSE_DATA;
298 stream = STREAM_FILE_DATA;
302 uLong compress_len, max_compress_len = 0;
303 const Bytef *cbuf = NULL;
305 if (ff_pkt->flags & FO_GZIP) {
306 if (stream == STREAM_WIN32_DATA) {
307 stream = STREAM_WIN32_GZIP_DATA;
308 } else if (stream == STREAM_FILE_DATA) {
309 stream = STREAM_GZIP_DATA;
311 stream = STREAM_SPARSE_GZIP_DATA;
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, 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;
354 while ((sd->msglen=bread(&ff_pkt->bfd, rbuf, rsize)) > 0) {
357 /* Check for sparse blocks */
358 if (ff_pkt->flags & FO_SPARSE) {
360 if (sd->msglen == rsize &&
361 (fileAddr+sd->msglen < (uint64_t)ff_pkt->statp.st_size)) {
362 sparseBlock = is_buf_zero(rbuf, rsize);
365 ser_begin(wbuf, SPARSE_FADDR_SIZE);
366 ser_uint64(fileAddr); /* store fileAddr in begin of buffer */
369 jcr->ReadBytes += sd->msglen; /* count bytes read */
370 fileAddr += sd->msglen;
372 /* Update MD5 if requested */
373 if (ff_pkt->flags & FO_MD5) {
374 MD5Update(&md5c, (unsigned char *)rbuf, sd->msglen);
376 } else if (ff_pkt->flags & FO_SHA1) {
377 SHA1Update(&sha1c, (unsigned char *)rbuf, sd->msglen);
382 /* Do compression if turned on */
383 if (!sparseBlock && ff_pkt->flags & FO_GZIP) {
385 compress_len = max_compress_len;
386 Dmsg4(400, "cbuf=0x%x len=%u rbuf=0x%x len=%u\n", cbuf, compress_len,
388 /* NOTE! This call modifies compress_len !!! */
389 if ((zstat=compress2((Bytef *)cbuf, &compress_len,
390 (const Bytef *)rbuf, (uLong)sd->msglen,
391 ff_pkt->GZIP_level)) != Z_OK) {
392 Jmsg(jcr, M_FATAL, 0, _("Compression error: %d\n"), zstat);
395 bclose(&ff_pkt->bfd);
396 set_jcr_job_status(jcr, JS_ErrorTerminated);
399 Dmsg2(400, "compressed len=%d uncompressed len=%d\n",
400 compress_len, sd->msglen);
402 sd->msglen = compress_len; /* set compressed length */
406 /* Send the buffer to the Storage daemon */
408 if (ff_pkt->flags & FO_SPARSE) {
409 sd->msglen += SPARSE_FADDR_SIZE; /* include fileAddr in size */
411 sd->msg = wbuf; /* set correct write buffer */
412 if (!bnet_send(sd)) {
413 sd->msg = msgsave; /* restore bnet buffer */
415 bclose(&ff_pkt->bfd);
416 set_jcr_job_status(jcr, JS_ErrorTerminated);
420 Dmsg1(130, "Send data to SD len=%d\n", sd->msglen);
422 jcr->JobBytes += sd->msglen; /* count bytes saved possibly compressed */
423 sd->msg = msgsave; /* restore read buffer */
425 } /* end while read file data */
428 if (sd->msglen < 0) {
429 Jmsg(jcr, M_ERROR, 0, _("Read error on file %s. ERR=%s\n"),
430 ff_pkt->fname, berror(&ff_pkt->bfd));
433 bclose(&ff_pkt->bfd); /* close file */
434 if (!bnet_sig(sd, BNET_EOD)) { /* indicate end of file data */
435 set_jcr_job_status(jcr, JS_ErrorTerminated);
440 /* Terminate any MD5 signature and send it to Storage daemon and the Director */
441 if (gotMD5 && ff_pkt->flags & FO_MD5) {
442 MD5Final(signature, &md5c);
443 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_MD5_SIGNATURE);
444 Dmsg1(100, "bfiled>stored:header %s\n", sd->msg);
445 memcpy(sd->msg, signature, 16);
448 bnet_sig(sd, BNET_EOD); /* end of MD5 */
451 } else if (gotSHA1 && ff_pkt->flags & FO_SHA1) {
452 /* Terminate any SHA1 signature and send it to Storage daemon and the Director */
453 SHA1Final(&sha1c, signature);
454 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_SHA1_SIGNATURE);
455 Dmsg1(100, "bfiled>stored:header %s\n", sd->msg);
456 memcpy(sd->msg, signature, 20);
459 bnet_sig(sd, BNET_EOD); /* end of SHA1 */