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, 2001, 2002 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.
40 int blast_data_to_storage_daemon(JCR *jcr, char *addr)
45 sd = jcr->store_bsock;
47 jcr->JobStatus = JS_Running;
49 Dmsg1(110, "bfiled: opened data connection %d to stored\n", sd->fd);
51 if (!bnet_set_buffer_size(sd, MAX_NETWORK_BUFFER_SIZE, BNET_SETBUF_WRITE)) {
55 jcr->buf_size = sd->msglen;
56 /* Adjust for compression so that output buffer is
57 * 12 bytes + 0.1% larger than input buffer plus 18 bytes.
58 * This gives a bit extra plus room for the sparse addr if any.
59 * Note, we adjust the read size to be smaller so that the
60 * same output buffer can be used without growing it.
62 jcr->compress_buf_size = jcr->buf_size + ((jcr->buf_size+999) / 1000) + 30;
63 jcr->compress_buf = get_memory(jcr->compress_buf_size);
65 Dmsg1(100, "set_find_options ff=%p\n", jcr->ff);
66 set_find_options(jcr->ff, jcr->incremental, jcr->mtime);
67 Dmsg0(110, "start find files\n");
69 /* Subroutine save_file() is called for each file */
70 /* ***FIXME**** add FSM code */
71 if (!find_files(jcr->ff, save_file, (void *)jcr)) {
75 bnet_sig(sd, BNET_EOD); /* end data connection */
81 if (jcr->compress_buf) {
82 free_pool_memory(jcr->compress_buf);
83 jcr->compress_buf = NULL;
89 * Called here by find() for each file included.
91 * *****FIXME***** add FSMs File System Modules
93 * Send the file and its data to the Storage daemon.
95 static int save_file(FF_PKT *ff_pkt, void *ijcr)
97 char attribs[MAXSTRING];
98 char attribsEx[MAXSTRING];
100 struct MD5Context md5c;
102 unsigned char signature[16];
104 JCR *jcr = (JCR *)ijcr;
107 if (job_cancelled(jcr)) {
111 sd = jcr->store_bsock;
112 jcr->num_files_examined++; /* bump total file count */
114 switch (ff_pkt->type) {
115 case FT_LNKSAVED: /* Hard linked, file already saved */
116 Dmsg2(130, "FT_LNKSAVED hard link: %s => %s\n", ff_pkt->fname, ff_pkt->link);
119 Dmsg1(130, "FT_REGE saving: %s\n", ff_pkt->fname);
122 Dmsg1(130, "FT_REG saving: %s\n", ff_pkt->fname);
125 Dmsg2(130, "FT_LNK saving: %s -> %s\n", ff_pkt->fname, ff_pkt->link);
128 Dmsg1(130, "FT_DIR saving: %s\n", ff_pkt->link);
131 Dmsg1(130, "FT_SPEC saving: %s\n", ff_pkt->fname);
134 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not access %s: ERR=%s\n"), ff_pkt->fname,
135 strerror(ff_pkt->ff_errno));
138 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not follow link %s: ERR=%s\n"), ff_pkt->fname,
139 strerror(ff_pkt->ff_errno));
142 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not stat %s: ERR=%s\n"), ff_pkt->fname,
143 strerror(ff_pkt->ff_errno));
147 Jmsg(jcr, M_SKIPPED, -1, _(" Unchanged file skipped: %s\n"), ff_pkt->fname);
150 Jmsg(jcr, M_NOTSAVED, -1, _(" Archive file not saved: %s\n"), ff_pkt->fname);
153 Jmsg(jcr, M_SKIPPED, -1, _(" Recursion turned off. Directory skipped: %s\n"),
157 Jmsg(jcr, M_SKIPPED, -1, _(" File system change prohibited. Directory skipped. %s\n"),
161 Jmsg(jcr, M_NOTSAVED, -1, _(" Could not open directory %s: ERR=%s\n"), ff_pkt->fname,
162 strerror(ff_pkt->ff_errno));
165 Jmsg(jcr, M_NOTSAVED, 0, _(" Unknown file type %d; not saved: %s\n"), ff_pkt->type, ff_pkt->fname);
169 if (ff_pkt->type != FT_LNKSAVED && S_ISREG(ff_pkt->statp.st_mode) &&
170 ff_pkt->statp.st_size > 0) {
171 if ((ff_pkt->fid = open(ff_pkt->fname, O_RDONLY | O_BINARY)) < 0) {
172 ff_pkt->ff_errno = errno;
173 Jmsg(jcr, M_NOTSAVED, -1, _(" Cannot open %s: ERR=%s.\n"), ff_pkt->fname, strerror(ff_pkt->ff_errno));
180 Dmsg1(130, "bfiled: sending %s to stored\n", ff_pkt->fname);
181 encode_stat(attribs, &ff_pkt->statp);
182 stream = encode_attribsEx(jcr, attribsEx, ff_pkt);
183 Dmsg3(200, "File %s\nattribs=%s\nattribsEx=%s\n", ff_pkt->fname, attribs, attribsEx);
185 jcr->JobFiles++; /* increment number of files sent */
186 pm_strcpy(&jcr->last_fname, ff_pkt->fname);
189 * Send Attributes header to Storage daemon
190 * <file-index> <stream> <info>
192 #ifndef NO_FD_SEND_TEST
193 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, stream)) {
194 if (ff_pkt->fid >= 0) {
199 Dmsg1(100, ">stored: attrhdr %s\n", sd->msg);
202 * Send file attributes to Storage daemon
205 * Filename (full path)
207 * Link name (if type==FT_LNK or FT_LNKSAVED)
208 * Encoded extended-attributes (for Win32)
210 * For a directory, link is the same as fname, but with trailing
211 * slash. For a linked file, link is the link.
213 if (ff_pkt->type == FT_LNK || ff_pkt->type == FT_LNKSAVED) {
214 Dmsg2(100, "Link %s to %s\n", ff_pkt->fname, ff_pkt->link);
215 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%s%c%s%c", jcr->JobFiles,
216 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, ff_pkt->link, 0,
218 } else if (ff_pkt->type == FT_DIR) {
219 /* Here link is the canonical filename (i.e. with trailing slash) */
220 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
221 ff_pkt->type, ff_pkt->link, 0, attribs, 0, 0, attribsEx, 0);
223 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
224 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, 0, attribsEx, 0);
227 Dmsg2(100, ">stored: attr len=%d: %s\n", sd->msglen, sd->msg);
229 if (ff_pkt->fid >= 0) {
234 bnet_sig(sd, BNET_EOD); /* indicate end of attributes data */
238 * If the file has data, read it and send to the Storage daemon
241 if (ff_pkt->fid >= 0) {
242 uint64_t fileAddr = 0; /* file address */
244 int rsize = jcr->buf_size; /* read buffer size */
247 rbuf = sd->msg; /* read buffer */
248 wbuf = sd->msg; /* write buffer */
250 Dmsg1(100, "Saving data, type=%d\n", ff_pkt->type);
252 if (ff_pkt->flags & FO_SPARSE) {
253 stream = STREAM_SPARSE_DATA;
255 stream = STREAM_FILE_DATA;
259 uLong compress_len, max_compress_len = 0;
260 const Bytef *cbuf = NULL;
262 if (ff_pkt->flags & FO_GZIP) {
263 if (stream == STREAM_FILE_DATA) {
264 stream = STREAM_GZIP_DATA;
266 stream = STREAM_SPARSE_GZIP_DATA;
269 if (ff_pkt->flags & FO_SPARSE) {
270 cbuf = (Bytef *)jcr->compress_buf + SPARSE_FADDR_SIZE;
271 max_compress_len = jcr->compress_buf_size - SPARSE_FADDR_SIZE;
273 cbuf = (Bytef *)jcr->compress_buf;
274 max_compress_len = jcr->compress_buf_size; /* set max length */
276 wbuf = jcr->compress_buf; /* compressed output here */
280 #ifndef NO_FD_SEND_TEST
282 * Send Data header to Storage daemon
283 * <file-index> <stream> <info>
285 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, stream)) {
289 Dmsg1(100, ">stored: datahdr %s\n", sd->msg);
292 if (ff_pkt->flags & FO_MD5) {
297 * Make space at beginning of buffer for fileAddr because this
298 * same buffer will be used for writing if compression if off.
300 if (ff_pkt->flags & FO_SPARSE) {
301 rbuf += SPARSE_FADDR_SIZE;
302 rsize -= SPARSE_FADDR_SIZE;
308 while ((sd->msglen=read(ff_pkt->fid, rbuf, rsize)) > 0) {
311 /* Check for sparse blocks */
312 if (ff_pkt->flags & FO_SPARSE) {
314 if (sd->msglen == rsize &&
315 (fileAddr+sd->msglen < (uint64_t)ff_pkt->statp.st_size)) {
316 sparseBlock = is_buf_zero(rbuf, rsize);
319 ser_begin(wbuf, SPARSE_FADDR_SIZE);
320 ser_uint64(fileAddr); /* store fileAddr in begin of buffer */
323 jcr->ReadBytes += sd->msglen; /* count bytes read */
324 fileAddr += sd->msglen;
326 /* Update MD5 if requested */
327 if (ff_pkt->flags & FO_MD5) {
328 MD5Update(&md5c, (unsigned char *)rbuf, sd->msglen);
333 /* Do compression if turned on */
334 if (!sparseBlock && ff_pkt->flags & FO_GZIP) {
336 compress_len = max_compress_len;
337 Dmsg4(400, "cbuf=0x%x len=%u rbuf=0x%x len=%u\n", cbuf, compress_len,
339 /* NOTE! This call modifies compress_len !!! */
340 if ((zstat=compress2((Bytef *)cbuf, &compress_len,
341 (const Bytef *)rbuf, (uLong)sd->msglen,
342 ff_pkt->GZIP_level)) != Z_OK) {
343 Jmsg(jcr, M_FATAL, 0, _("Compression error: %d\n"), zstat);
349 Dmsg2(400, "compressed len=%d uncompressed len=%d\n",
350 compress_len, sd->msglen);
352 sd->msglen = compress_len; /* set compressed length */
356 #ifndef NO_FD_SEND_TEST
357 /* Send the buffer to the Storage daemon */
359 if (ff_pkt->flags & FO_SPARSE) {
360 sd->msglen += SPARSE_FADDR_SIZE; /* include fileAddr in size */
362 sd->msg = wbuf; /* set correct write buffer */
363 if (!bnet_send(sd)) {
364 sd->msg = msgsave; /* restore read buffer */
370 Dmsg1(130, "Send data to FD len=%d\n", sd->msglen);
372 jcr->JobBytes += sd->msglen; /* count bytes saved possibly compressed */
373 sd->msg = msgsave; /* restore read buffer */
375 } /* end while read file data */
377 if (sd->msglen < 0) {
378 Jmsg(jcr, M_ERROR, 0, _("Read error on file %s. ERR=%s\n"),
379 ff_pkt->fname, strerror(errno));
382 #ifndef NO_FD_SEND_TEST
383 bnet_sig(sd, BNET_EOD); /* indicate end of file data */
384 #endif /* NO_FD_SEND_TEST */
385 close(ff_pkt->fid); /* close file */
389 /* Terminate any MD5 signature and send it to Storage daemon and the Director */
390 if (gotMD5 && ff_pkt->flags & FO_MD5) {
391 MD5Final(signature, &md5c);
392 #ifndef NO_FD_SEND_TEST
393 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_MD5_SIGNATURE);
394 Dmsg1(100, "bfiled>stored:header %s\n", sd->msg);
395 memcpy(sd->msg, signature, 16);
398 bnet_sig(sd, BNET_EOD); /* end of MD5 */