2 * Bacula File Daemon backup.c send file attributes and data
3 * to the Storage daemon.
5 * Kern Sibbald, March MM
11 Bacula® - The Network Backup Solution
13 Copyright (C) 2000-2007 Free Software Foundation Europe e.V.
15 The main author of Bacula is Kern Sibbald, with contributions from
16 many others, a complete list can be found in the file AUTHORS.
17 This program is Free Software; you can redistribute it and/or
18 modify it under the terms of version two of the GNU General Public
19 License as published by the Free Software Foundation plus additions
20 that are listed in the file LICENSE.
22 This program is distributed in the hope that it will be useful, but
23 WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
25 General Public License for more details.
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
32 Bacula® is a registered trademark of John Walker.
33 The licensor of Bacula is the Free Software Foundation Europe
34 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
35 Switzerland, email:ftf@fsfeurope.org.
41 /* Forward referenced functions */
42 static int save_file(FF_PKT *ff_pkt, void *pkt, bool top_level);
43 static int send_data(JCR *jcr, int stream, FF_PKT *ff_pkt, DIGEST *digest, DIGEST *signature_digest);
44 static bool encode_and_send_attributes(JCR *jcr, FF_PKT *ff_pkt, int &data_stream);
45 static bool read_and_send_acl(JCR *jcr, int acltype, int stream);
48 * Find all the requested files and send them
49 * to the Storage daemon.
51 * Note, we normally carry on a one-way
52 * conversation from this point on with the SD, simply blasting
53 * data to him. To properly know what is going on, we
54 * also run a "heartbeat" monitor which reads the socket and
55 * reacts accordingly (at the moment it has nothing to do
56 * except echo the heartbeat to the Director).
59 bool blast_data_to_storage_daemon(JCR *jcr, char *addr)
63 // TODO landonf: Allow user to specify encryption algorithm
64 crypto_cipher_t cipher = CRYPTO_CIPHER_AES_128_CBC;
67 sd = jcr->store_bsock;
69 set_jcr_job_status(jcr, JS_Running);
71 Dmsg1(300, "bfiled: opened data connection %d to stored\n", sd->fd);
74 CLIENT *client = (CLIENT *)GetNextRes(R_CLIENT, NULL);
78 buf_size = client->max_network_buffer_size;
80 buf_size = 0; /* use default */
82 if (!bnet_set_buffer_size(sd, buf_size, BNET_SETBUF_WRITE)) {
83 set_jcr_job_status(jcr, JS_ErrorTerminated);
84 Jmsg(jcr, M_FATAL, 0, _("Cannot set buffer size FD->SD.\n"));
88 jcr->buf_size = sd->msglen;
89 /* Adjust for compression so that output buffer is
90 * 12 bytes + 0.1% larger than input buffer plus 18 bytes.
91 * This gives a bit extra plus room for the sparse addr if any.
92 * Note, we adjust the read size to be smaller so that the
93 * same output buffer can be used without growing it.
95 * The zlib compression workset is initialized here to minimise
96 * the "per file" load. The jcr member is only set, if the init was successful.
98 jcr->compress_buf_size = jcr->buf_size + ((jcr->buf_size+999) / 1000) + 30;
99 jcr->compress_buf = get_memory(jcr->compress_buf_size);
102 z_stream *pZlibStream = (z_stream*)malloc(sizeof(z_stream));
104 pZlibStream->zalloc = Z_NULL;
105 pZlibStream->zfree = Z_NULL;
106 pZlibStream->opaque = Z_NULL;
107 pZlibStream->state = Z_NULL;
109 if (deflateInit(pZlibStream, Z_DEFAULT_COMPRESSION) == Z_OK)
110 jcr->pZLIB_compress_workset = pZlibStream;
116 /* Create encryption session data and a cached, DER-encoded session data
117 * structure. We use a single session key for each backup, so we'll encode
118 * the session data only once. */
119 if (jcr->pki_encrypt) {
122 /* Create per-job session encryption context */
123 jcr->pki_session = crypto_session_new(cipher, jcr->pki_recipients);
125 /* Get the session data size */
126 if (crypto_session_encode(jcr->pki_session, (uint8_t *)0, &size) == false) {
127 Jmsg(jcr, M_FATAL, 0, _("An error occurred while encrypting the stream.\n"));
131 /* Allocate buffer */
132 jcr->pki_session_encoded = (uint8_t *)malloc(size);
133 if (!jcr->pki_session_encoded) {
137 /* Encode session data */
138 if (crypto_session_encode(jcr->pki_session, jcr->pki_session_encoded, &size) == false) {
139 Jmsg(jcr, M_FATAL, 0, _("An error occurred while encrypting the stream.\n"));
143 /* ... and store the encoded size */
144 jcr->pki_session_encoded_size = size;
146 /* Allocate the encryption/decryption buffer */
147 jcr->crypto_buf = get_memory(CRYPTO_CIPHER_MAX_BLOCK_SIZE);
150 Dmsg1(300, "set_find_options ff=%p\n", jcr->ff);
151 set_find_options((FF_PKT *)jcr->ff, jcr->incremental, jcr->mtime);
152 Dmsg0(300, "start find files\n");
154 start_heartbeat_monitor(jcr);
156 jcr->acl_text = get_pool_memory(PM_MESSAGE);
158 /* Subroutine save_file() is called for each file */
159 if (!find_files(jcr, (FF_PKT *)jcr->ff, save_file, (void *)jcr)) {
160 ok = false; /* error */
161 set_jcr_job_status(jcr, JS_ErrorTerminated);
162 // Jmsg(jcr, M_FATAL, 0, _("Find files error.\n"));
165 free_pool_memory(jcr->acl_text);
167 stop_heartbeat_monitor(jcr);
169 bnet_sig(sd, BNET_EOD); /* end of sending data */
175 if (jcr->compress_buf) {
176 free_pool_memory(jcr->compress_buf);
177 jcr->compress_buf = NULL;
179 if (jcr->pZLIB_compress_workset) {
180 /* Free the zlib stream */
182 deflateEnd((z_stream *)jcr->pZLIB_compress_workset);
184 free (jcr->pZLIB_compress_workset);
185 jcr->pZLIB_compress_workset = NULL;
187 if (jcr->crypto_buf) {
188 free_pool_memory(jcr->crypto_buf);
189 jcr->crypto_buf = NULL;
191 if (jcr->pki_session) {
192 crypto_session_free(jcr->pki_session);
194 if (jcr->pki_session_encoded) {
195 free(jcr->pki_session_encoded);
198 Dmsg1(100, "end blast_data ok=%d\n", ok);
203 * Called here by find() for each file included.
204 * This is a callback. The original is find_files() above.
206 * Send the file and its data to the Storage daemon.
210 * -1 to ignore file/directory (not used here)
212 static int save_file(FF_PKT *ff_pkt, void *vjcr, bool top_level)
214 bool do_read = false;
215 int stat, data_stream;
217 DIGEST *digest = NULL;
218 DIGEST *signing_digest = NULL;
219 int digest_stream = STREAM_NONE;
220 SIGNATURE *sig = NULL;
222 bool has_file_data = false;
223 // TODO landonf: Allow the user to specify the digest algorithm
225 crypto_digest_t signing_algorithm = CRYPTO_DIGEST_SHA256;
227 crypto_digest_t signing_algorithm = CRYPTO_DIGEST_SHA1;
229 JCR *jcr = (JCR *)vjcr;
230 BSOCK *sd = jcr->store_bsock;
232 if (job_canceled(jcr)) {
236 jcr->num_files_examined++; /* bump total file count */
238 switch (ff_pkt->type) {
239 case FT_LNKSAVED: /* Hard linked, file already saved */
240 Dmsg2(130, "FT_LNKSAVED hard link: %s => %s\n", ff_pkt->fname, ff_pkt->link);
243 Dmsg1(130, "FT_REGE saving: %s\n", ff_pkt->fname);
244 has_file_data = true;
247 Dmsg1(130, "FT_REG saving: %s\n", ff_pkt->fname);
248 has_file_data = true;
251 Dmsg2(130, "FT_LNK saving: %s -> %s\n", ff_pkt->fname, ff_pkt->link);
254 jcr->num_files_examined--; /* correct file count */
255 return 1; /* not used */
257 Jmsg(jcr, M_INFO, 1, _(" Recursion turned off. Will not descend from %s into %s\n"),
258 ff_pkt->top_fname, ff_pkt->fname);
259 ff_pkt->type = FT_DIREND; /* Backup only the directory entry */
262 /* Suppress message for /dev filesystems */
263 if (strncmp(ff_pkt->fname, "/dev/", 5) != 0) {
264 Jmsg(jcr, M_INFO, 1, _(" %s is a different filesystem. Will not descend from %s into %s\n"),
265 ff_pkt->fname, ff_pkt->top_fname, ff_pkt->fname);
267 ff_pkt->type = FT_DIREND; /* Backup only the directory entry */
270 Jmsg(jcr, M_INFO, 1, _(" Disallowed filesystem. Will not descend from %s into %s\n"),
271 ff_pkt->top_fname, ff_pkt->fname);
272 ff_pkt->type = FT_DIREND; /* Backup only the directory entry */
275 Jmsg(jcr, M_INFO, 1, _(" Disallowed drive type. Will not descend into %s\n"),
279 Dmsg1(130, "FT_DIREND: %s\n", ff_pkt->link);
282 Dmsg1(130, "FT_SPEC saving: %s\n", ff_pkt->fname);
285 Dmsg1(130, "FT_RAW saving: %s\n", ff_pkt->fname);
286 has_file_data = true;
289 Dmsg1(130, "FT_FIFO saving: %s\n", ff_pkt->fname);
293 Jmsg(jcr, M_NOTSAVED, 0, _(" Could not access %s: ERR=%s\n"), ff_pkt->fname,
294 be.strerror(ff_pkt->ff_errno));
300 Jmsg(jcr, M_NOTSAVED, 0, _(" Could not follow link %s: ERR=%s\n"), ff_pkt->fname,
301 be.strerror(ff_pkt->ff_errno));
307 Jmsg(jcr, M_NOTSAVED, 0, _(" Could not stat %s: ERR=%s\n"), ff_pkt->fname,
308 be.strerror(ff_pkt->ff_errno));
314 Jmsg(jcr, M_SKIPPED, 1, _(" Unchanged file skipped: %s\n"), ff_pkt->fname);
317 Jmsg(jcr, M_NOTSAVED, 0, _(" Archive file not saved: %s\n"), ff_pkt->fname);
321 Jmsg(jcr, M_NOTSAVED, 0, _(" Could not open directory %s: ERR=%s\n"), ff_pkt->fname,
322 be.strerror(ff_pkt->ff_errno));
327 Jmsg(jcr, M_NOTSAVED, 0, _(" Unknown file type %d; not saved: %s\n"), ff_pkt->type, ff_pkt->fname);
332 Dmsg1(130, "bfiled: sending %s to stored\n", ff_pkt->fname);
334 /* Digests and encryption are only useful if there's file data */
337 * Setup for digest handling. If this fails, the digest will be set to NULL
340 if (ff_pkt->flags & FO_MD5) {
341 digest = crypto_digest_new(CRYPTO_DIGEST_MD5);
342 digest_stream = STREAM_MD5_DIGEST;
344 } else if (ff_pkt->flags & FO_SHA1) {
345 digest = crypto_digest_new(CRYPTO_DIGEST_SHA1);
346 digest_stream = STREAM_SHA1_DIGEST;
348 } else if (ff_pkt->flags & FO_SHA256) {
349 digest = crypto_digest_new(CRYPTO_DIGEST_SHA256);
350 digest_stream = STREAM_SHA256_DIGEST;
352 } else if (ff_pkt->flags & FO_SHA512) {
353 digest = crypto_digest_new(CRYPTO_DIGEST_SHA512);
354 digest_stream = STREAM_SHA512_DIGEST;
357 /* Did digest initialization fail? */
358 if (digest_stream != STREAM_NONE && digest == NULL) {
359 Jmsg(jcr, M_WARNING, 0, _("%s digest initialization failed\n"),
360 stream_to_ascii(digest_stream));
364 * Set up signature digest handling. If this fails, the signature digest will be set to
367 // TODO landonf: We should really only calculate the digest once, for both verification and signing.
369 signing_digest = crypto_digest_new(signing_algorithm);
371 /* Full-stop if a failure occurred initializing the signature digest */
372 if (signing_digest == NULL) {
373 Jmsg(jcr, M_NOTSAVED, 0, _("%s signature digest initialization failed\n"),
374 stream_to_ascii(signing_algorithm));
380 /* Enable encryption */
381 if (jcr->pki_encrypt) {
382 ff_pkt->flags |= FO_ENCRYPT;
386 /* Initialise the file descriptor we use for data and other streams. */
388 if (ff_pkt->flags & FO_PORTABLE) {
389 set_portable_backup(&ff_pkt->bfd); /* disable Win32 BackupRead() */
391 if (ff_pkt->reader) {
392 if (!set_prog(&ff_pkt->bfd, ff_pkt->reader, jcr)) {
393 Jmsg(jcr, M_FATAL, 0, _("Python reader program \"%s\" not found.\n"),
399 /* Send attributes -- must be done after binit() */
400 if (!encode_and_send_attributes(jcr, ff_pkt, data_stream)) {
405 * Open any file with data that we intend to save, then save it.
407 * Note, if is_win32_backup, we must open the Directory so that
408 * the BackupRead will save its permissions and ownership streams.
411 if (ff_pkt->type != FT_LNKSAVED && S_ISREG(ff_pkt->statp.st_mode)) {
413 do_read = !is_portable_backup(&ff_pkt->bfd) || ff_pkt->statp.st_size > 0;
415 do_read = ff_pkt->statp.st_size > 0;
417 } else if (ff_pkt->type == FT_RAW || ff_pkt->type == FT_FIFO ||
418 (!is_portable_backup(&ff_pkt->bfd) && ff_pkt->type == FT_DIREND)) {
424 if (ff_pkt->type == FT_FIFO) {
425 tid = start_thread_timer(pthread_self(), 60);
429 int noatime = ff_pkt->flags & FO_NOATIME ? O_NOATIME : 0;
430 if (bopen(&ff_pkt->bfd, ff_pkt->fname, O_RDONLY | O_BINARY | noatime, 0) < 0) {
431 ff_pkt->ff_errno = errno;
433 Jmsg(jcr, M_NOTSAVED, 0, _(" Cannot open %s: ERR=%s.\n"), ff_pkt->fname,
437 stop_thread_timer(tid);
443 stop_thread_timer(tid);
447 /* Set up the encryption context, send the session data to the SD */
448 if (jcr->pki_encrypt) {
449 /* Send our header */
450 Dmsg2(100, "Send hdr fi=%ld stream=%d\n", jcr->JobFiles, STREAM_ENCRYPTED_SESSION_DATA);
451 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_ENCRYPTED_SESSION_DATA);
453 /* Grow the bsock buffer to fit our message if necessary */
454 if (sizeof_pool_memory(sd->msg) < jcr->pki_session_encoded_size) {
455 sd->msg = realloc_pool_memory(sd->msg, jcr->pki_session_encoded_size);
458 /* Copy our message over and send it */
459 memcpy(sd->msg, jcr->pki_session_encoded, jcr->pki_session_encoded_size);
460 sd->msglen = jcr->pki_session_encoded_size;
461 jcr->JobBytes += sd->msglen;
463 Dmsg1(100, "Send data len=%d\n", sd->msglen);
465 bnet_sig(sd, BNET_EOD);
468 stat = send_data(jcr, data_stream, ff_pkt, digest, signing_digest);
470 if (ff_pkt->flags & FO_CHKCHANGES) {
471 has_file_changed(jcr, ff_pkt);
474 bclose(&ff_pkt->bfd);
481 #ifdef HAVE_DARWIN_OS
482 /* Regular files can have resource forks and Finder Info */
483 if (ff_pkt->type != FT_LNKSAVED && (S_ISREG(ff_pkt->statp.st_mode) &&
484 ff_pkt->flags & FO_HFSPLUS)) {
485 if (ff_pkt->hfsinfo.rsrclength > 0) {
488 if (!bopen_rsrc(&ff_pkt->bfd, ff_pkt->fname, O_RDONLY | O_BINARY, 0) < 0) {
489 ff_pkt->ff_errno = errno;
491 Jmsg(jcr, M_NOTSAVED, -1, _(" Cannot open resource fork for %s: ERR=%s.\n"), ff_pkt->fname,
494 if (is_bopen(&ff_pkt->bfd)) {
495 bclose(&ff_pkt->bfd);
499 flags = ff_pkt->flags;
500 ff_pkt->flags &= ~(FO_GZIP|FO_SPARSE);
501 if (flags & FO_ENCRYPT) {
502 rsrc_stream = STREAM_ENCRYPTED_MACOS_FORK_DATA;
504 rsrc_stream = STREAM_MACOS_FORK_DATA;
506 stat = send_data(jcr, rsrc_stream, ff_pkt, digest, signing_digest);
507 ff_pkt->flags = flags;
508 bclose(&ff_pkt->bfd);
514 Dmsg1(300, "Saving Finder Info for \"%s\"\n", ff_pkt->fname);
515 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_HFSPLUS_ATTRIBUTES);
516 Dmsg1(300, "bfiled>stored:header %s\n", sd->msg);
517 memcpy(sd->msg, ff_pkt->hfsinfo.fndrinfo, 32);
520 crypto_digest_update(digest, (uint8_t *)sd->msg, sd->msglen);
522 if (signing_digest) {
523 crypto_digest_update(signing_digest, (uint8_t *)sd->msg, sd->msglen);
526 bnet_sig(sd, BNET_EOD);
530 if (ff_pkt->flags & FO_ACL) {
531 /* Read access ACLs for files, dirs and links */
532 if (!read_and_send_acl(jcr, BACL_TYPE_ACCESS, STREAM_UNIX_ATTRIBUTES_ACCESS_ACL)) {
535 /* Directories can have default ACLs too */
536 if (ff_pkt->type == FT_DIREND && (BACL_CAP & BACL_CAP_DEFAULTS_DIR)) {
537 if (!read_and_send_acl(jcr, BACL_TYPE_DEFAULT, STREAM_UNIX_ATTRIBUTES_DEFAULT_ACL)) {
543 /* Terminate the signing digest and send it to the Storage daemon */
544 if (signing_digest) {
547 if ((sig = crypto_sign_new()) == NULL) {
548 Jmsg(jcr, M_FATAL, 0, _("Failed to allocate memory for stream signature.\n"));
552 if (crypto_sign_add_signer(sig, signing_digest, jcr->pki_keypair) == false) {
553 Jmsg(jcr, M_FATAL, 0, _("An error occurred while signing the stream.\n"));
557 /* Get signature size */
558 if (crypto_sign_encode(sig, NULL, &size) == false) {
559 Jmsg(jcr, M_FATAL, 0, _("An error occurred while signing the stream.\n"));
563 /* Allocate signature data buffer */
564 buf = (uint8_t *)malloc(size);
569 /* Encode signature data */
570 if (crypto_sign_encode(sig, buf, &size) == false) {
571 Jmsg(jcr, M_FATAL, 0, _("An error occurred while signing the stream.\n"));
575 /* Send our header */
576 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, STREAM_SIGNED_DIGEST);
577 Dmsg1(300, "bfiled>stored:header %s\n", sd->msg);
579 /* Grow the bsock buffer to fit our message if necessary */
580 if (sizeof_pool_memory(sd->msg) < (int32_t)size) {
581 sd->msg = realloc_pool_memory(sd->msg, size);
584 /* Copy our message over and send it */
585 memcpy(sd->msg, buf, size);
588 bnet_sig(sd, BNET_EOD); /* end of checksum */
592 /* Terminate any digest and send it to Storage daemon and the Director */
594 uint8_t md[CRYPTO_DIGEST_MAX_SIZE];
599 if (crypto_digest_finalize(digest, md, &size)) {
600 bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, digest_stream);
601 Dmsg1(300, "bfiled>stored:header %s\n", sd->msg);
602 memcpy(sd->msg, md, size);
605 bnet_sig(sd, BNET_EOD); /* end of checksum */
610 rtnstat = 1; /* good return */
614 crypto_digest_free(digest);
616 if (signing_digest) {
617 crypto_digest_free(signing_digest);
620 crypto_sign_free(sig);
629 * Send data read from an already open file descriptor.
631 * We return 1 on sucess and 0 on errors.
634 * We use ff_pkt->statp.st_size when FO_SPARSE to know when to stop
636 * Currently this is not a problem as the only other stream, resource forks,
637 * are not handled as sparse files.
639 int send_data(JCR *jcr, int stream, FF_PKT *ff_pkt, DIGEST *digest,
640 DIGEST *signing_digest)
642 BSOCK *sd = jcr->store_bsock;
643 uint64_t fileAddr = 0; /* file address */
645 int32_t rsize = jcr->buf_size; /* read buffer size */
647 CIPHER_CONTEXT *cipher_ctx = NULL; /* Quell bogus uninitialized warnings */
648 const uint8_t *cipher_input;
649 uint32_t cipher_input_len;
650 uint32_t cipher_block_size;
651 uint32_t encrypted_len;
652 #ifdef FD_NO_SEND_TEST
657 rbuf = sd->msg; /* read buffer */
658 wbuf = sd->msg; /* write buffer */
659 cipher_input = (uint8_t *)rbuf; /* encrypt uncompressed data */
661 Dmsg1(300, "Saving data, type=%d\n", ff_pkt->type);
664 uLong compress_len = 0;
665 uLong max_compress_len = 0;
666 const Bytef *cbuf = NULL;
669 if (ff_pkt->flags & FO_GZIP) {
670 if (ff_pkt->flags & FO_SPARSE) {
671 cbuf = (Bytef *)jcr->compress_buf + SPARSE_FADDR_SIZE;
672 max_compress_len = jcr->compress_buf_size - SPARSE_FADDR_SIZE;
674 cbuf = (Bytef *)jcr->compress_buf;
675 max_compress_len = jcr->compress_buf_size; /* set max length */
677 wbuf = jcr->compress_buf; /* compressed output here */
678 cipher_input = (uint8_t *)jcr->compress_buf; /* encrypt compressed data */
681 * Only change zlib parameters if there is no pending operation.
682 * This should never happen as deflatereset is called after each
686 if (((z_stream*)jcr->pZLIB_compress_workset)->total_in == 0) {
687 /* set gzip compression level - must be done per file */
688 if ((zstat=deflateParams((z_stream*)jcr->pZLIB_compress_workset,
689 ff_pkt->GZIP_level, Z_DEFAULT_STRATEGY)) != Z_OK) {
690 Jmsg(jcr, M_FATAL, 0, _("Compression deflateParams error: %d\n"), zstat);
691 set_jcr_job_status(jcr, JS_ErrorTerminated);
697 const uint32_t max_compress_len = 0;
700 if (ff_pkt->flags & FO_ENCRYPT) {
701 if (ff_pkt->flags & FO_SPARSE) {
702 Jmsg0(jcr, M_FATAL, 0, _("Encrypting sparse data not supported.\n"));
705 /* Allocate the cipher context */
706 if ((cipher_ctx = crypto_cipher_new(jcr->pki_session, true,
707 &cipher_block_size)) == NULL) {
708 /* Shouldn't happen! */
709 Jmsg0(jcr, M_FATAL, 0, _("Failed to initialize encryption context.\n"));
714 * Grow the crypto buffer, if necessary.
715 * crypto_cipher_update() will buffer up to (cipher_block_size - 1).
716 * We grow crypto_buf to the maximum number of blocks that
717 * could be returned for the given read buffer size.
718 * (Using the larger of either rsize or max_compress_len)
720 jcr->crypto_buf = check_pool_memory_size(jcr->crypto_buf,
721 (MAX(rsize + (int)sizeof(uint32_t), (int32_t)max_compress_len) +
722 cipher_block_size - 1) / cipher_block_size * cipher_block_size);
724 wbuf = jcr->crypto_buf; /* Encrypted, possibly compressed output here. */
728 * Send Data header to Storage daemon
729 * <file-index> <stream> <info>
731 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, stream)) {
732 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
736 Dmsg1(300, ">stored: datahdr %s\n", sd->msg);
739 * Make space at beginning of buffer for fileAddr because this
740 * same buffer will be used for writing if compression is off.
742 if (ff_pkt->flags & FO_SPARSE) {
743 rbuf += SPARSE_FADDR_SIZE;
744 rsize -= SPARSE_FADDR_SIZE;
745 #ifdef HAVE_FREEBSD_OS
747 * To read FreeBSD partitions, the read size must be
750 rsize = (rsize/512) * 512;
754 /* a RAW device read on win32 only works if the buffer is a multiple of 512 */
756 if (S_ISBLK(ff_pkt->statp.st_mode))
757 rsize = (rsize/512) * 512;
763 while ((sd->msglen=(uint32_t)bread(&ff_pkt->bfd, rbuf, rsize)) > 0) {
765 /* Check for sparse blocks */
766 if (ff_pkt->flags & FO_SPARSE) {
768 bool haveBlock = true;
769 if (sd->msglen == rsize &&
770 fileAddr+sd->msglen < (uint64_t)ff_pkt->statp.st_size ||
771 ((ff_pkt->type == FT_RAW || ff_pkt->type == FT_FIFO) &&
772 (uint64_t)ff_pkt->statp.st_size == 0)) {
773 haveBlock = !is_buf_zero(rbuf, rsize);
776 ser_begin(wbuf, SPARSE_FADDR_SIZE);
777 ser_uint64(fileAddr); /* store fileAddr in begin of buffer */
779 fileAddr += sd->msglen; /* update file address */
781 continue; /* skip block of zeros */
785 jcr->ReadBytes += sd->msglen; /* count bytes read */
787 /* Uncompressed cipher input length */
788 cipher_input_len = sd->msglen;
790 /* Update checksum if requested */
792 crypto_digest_update(digest, (uint8_t *)rbuf, sd->msglen);
795 /* Update signing digest if requested */
796 if (signing_digest) {
797 crypto_digest_update(signing_digest, (uint8_t *)rbuf, sd->msglen);
801 /* Do compression if turned on */
802 if (ff_pkt->flags & FO_GZIP && jcr->pZLIB_compress_workset) {
803 Dmsg3(400, "cbuf=0x%x rbuf=0x%x len=%u\n", cbuf, rbuf, sd->msglen);
805 ((z_stream*)jcr->pZLIB_compress_workset)->next_in = (Bytef *)rbuf;
806 ((z_stream*)jcr->pZLIB_compress_workset)->avail_in = sd->msglen;
807 ((z_stream*)jcr->pZLIB_compress_workset)->next_out = (Bytef *)cbuf;
808 ((z_stream*)jcr->pZLIB_compress_workset)->avail_out = max_compress_len;
810 if ((zstat=deflate((z_stream*)jcr->pZLIB_compress_workset, Z_FINISH)) != Z_STREAM_END) {
811 Jmsg(jcr, M_FATAL, 0, _("Compression deflate error: %d\n"), zstat);
812 set_jcr_job_status(jcr, JS_ErrorTerminated);
815 compress_len = ((z_stream*)jcr->pZLIB_compress_workset)->total_out;
816 /* reset zlib stream to be able to begin from scratch again */
817 if ((zstat=deflateReset((z_stream*)jcr->pZLIB_compress_workset)) != Z_OK) {
818 Jmsg(jcr, M_FATAL, 0, _("Compression deflateReset error: %d\n"), zstat);
819 set_jcr_job_status(jcr, JS_ErrorTerminated);
823 Dmsg2(400, "compressed len=%d uncompressed len=%d\n", compress_len,
826 sd->msglen = compress_len; /* set compressed length */
827 cipher_input_len = compress_len;
831 * Note, here we prepend the current record length to the beginning
832 * of the encrypted data. This is because both sparse and compression
833 * restore handling want records returned to them with exactly the
834 * same number of bytes that were processed in the backup handling.
835 * That is, both are block filters rather than a stream. When doing
836 * compression, the compression routines may buffer data, so that for
837 * any one record compressed, when it is decompressed the same size
838 * will not be obtained. Of course, the buffered data eventually comes
839 * out in subsequent crypto_cipher_update() calls or at least
840 * when crypto_cipher_finalize() is called. Unfortunately, this
841 * "feature" of encryption enormously complicates the restore code.
843 if (ff_pkt->flags & FO_ENCRYPT) {
844 uint32_t initial_len = 0;
847 if (ff_pkt->flags & FO_SPARSE) {
848 cipher_input_len += SPARSE_FADDR_SIZE;
851 /* Encrypt the length of the input block */
852 uint8_t packet_len[sizeof(uint32_t)];
854 ser_begin(packet_len, sizeof(uint32_t));
855 ser_uint32(cipher_input_len); /* store data len in begin of buffer */
856 Dmsg1(20, "Encrypt len=%d\n", cipher_input_len);
858 if (!crypto_cipher_update(cipher_ctx, packet_len, sizeof(packet_len),
859 (u_int8_t *)jcr->crypto_buf, &initial_len)) {
860 /* Encryption failed. Shouldn't happen. */
861 Jmsg(jcr, M_FATAL, 0, _("Encryption error\n"));
865 /* Encrypt the input block */
866 if (crypto_cipher_update(cipher_ctx, cipher_input, cipher_input_len,
867 (u_int8_t *)&jcr->crypto_buf[initial_len], &encrypted_len)) {
868 if ((initial_len + encrypted_len) == 0) {
869 /* No full block of data available, read more data */
872 Dmsg2(400, "encrypted len=%d unencrypted len=%d\n", encrypted_len,
874 sd->msglen = initial_len + encrypted_len; /* set encrypted length */
876 /* Encryption failed. Shouldn't happen. */
877 Jmsg(jcr, M_FATAL, 0, _("Encryption error\n"));
882 /* Send the buffer to the Storage daemon */
883 if (ff_pkt->flags & FO_SPARSE) {
884 sd->msglen += SPARSE_FADDR_SIZE; /* include fileAddr in size */
886 sd->msg = wbuf; /* set correct write buffer */
887 if (!bnet_send(sd)) {
888 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
892 Dmsg1(130, "Send data to SD len=%d\n", sd->msglen);
894 jcr->JobBytes += sd->msglen; /* count bytes saved possibly compressed/encrypted */
895 sd->msg = msgsave; /* restore read buffer */
897 } /* end while read file data */
899 if (sd->msglen < 0) { /* error */
901 Jmsg(jcr, M_ERROR, 0, _("Read error on file %s. ERR=%s\n"),
902 ff_pkt->fname, be.strerror(ff_pkt->bfd.berrno));
903 if (jcr->Errors++ > 1000) { /* insanity check */
904 Jmsg(jcr, M_FATAL, 0, _("Too many errors.\n"));
906 } else if (ff_pkt->flags & FO_ENCRYPT) {
908 * For encryption, we must call finalize to push out any
911 if (!crypto_cipher_finalize(cipher_ctx, (uint8_t *)jcr->crypto_buf,
913 /* Padding failed. Shouldn't happen. */
914 Jmsg(jcr, M_FATAL, 0, _("Encryption padding error\n"));
918 /* Note, on SSL pre-0.9.7, there is always some output */
919 if (encrypted_len > 0) {
920 sd->msglen = encrypted_len; /* set encrypted length */
921 sd->msg = jcr->crypto_buf; /* set correct write buffer */
922 if (!bnet_send(sd)) {
923 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
927 Dmsg1(130, "Send data to SD len=%d\n", sd->msglen);
928 jcr->JobBytes += sd->msglen; /* count bytes saved possibly compressed/encrypted */
929 sd->msg = msgsave; /* restore bnet buffer */
933 if (!bnet_sig(sd, BNET_EOD)) { /* indicate end of file data */
934 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
939 /* Free the cipher context */
941 crypto_cipher_free(cipher_ctx);
946 /* Free the cipher context */
948 crypto_cipher_free(cipher_ctx);
951 sd->msg = msgsave; /* restore bnet buffer */
957 * Read and send an ACL for the last encountered file.
959 static bool read_and_send_acl(JCR *jcr, int acltype, int stream)
962 BSOCK *sd = jcr->store_bsock;
965 #ifdef FD_NO_SEND_TEST
969 len = bacl_get(jcr, acltype);
971 Jmsg1(jcr, M_WARNING, 0, _("Error reading ACL of %s\n"), jcr->last_fname);
975 return true; /* no ACL */
979 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, stream)) {
980 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
985 /* Send the buffer to the storage deamon */
986 Dmsg2(400, "Backing up ACL type 0x%2x <%s>\n", acltype, jcr->acl_text);
988 sd->msg = jcr->acl_text;
989 sd->msglen = len + 1;
990 if (!bnet_send(sd)) {
993 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
998 jcr->JobBytes += sd->msglen;
1000 if (!bnet_sig(sd, BNET_EOD)) {
1001 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
1006 Dmsg1(200, "ACL of file: %s successfully backed up!\n", jcr->last_fname);
1011 static bool encode_and_send_attributes(JCR *jcr, FF_PKT *ff_pkt, int &data_stream)
1013 BSOCK *sd = jcr->store_bsock;
1014 char attribs[MAXSTRING];
1015 char attribsEx[MAXSTRING];
1018 #ifdef FD_NO_SEND_TEST
1022 /* Find what data stream we will use, then encode the attributes */
1023 if ((data_stream = select_data_stream(ff_pkt)) == STREAM_NONE) {
1024 /* This should not happen */
1025 Jmsg0(jcr, M_FATAL, 0, _("Invalid file flags, no supported data stream type.\n"));
1028 encode_stat(attribs, ff_pkt, data_stream);
1030 /* Now possibly extend the attributes */
1031 attr_stream = encode_attribsEx(jcr, attribsEx, ff_pkt);
1033 Dmsg3(300, "File %s\nattribs=%s\nattribsEx=%s\n", ff_pkt->fname, attribs, attribsEx);
1036 jcr->JobFiles++; /* increment number of files sent */
1037 ff_pkt->FileIndex = jcr->JobFiles; /* return FileIndex */
1038 pm_strcpy(jcr->last_fname, ff_pkt->fname);
1042 * Send Attributes header to Storage daemon
1043 * <file-index> <stream> <info>
1045 if (!bnet_fsend(sd, "%ld %d 0", jcr->JobFiles, attr_stream)) {
1046 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
1050 Dmsg1(300, ">stored: attrhdr %s\n", sd->msg);
1053 * Send file attributes to Storage daemon
1056 * Filename (full path)
1057 * Encoded attributes
1058 * Link name (if type==FT_LNK or FT_LNKSAVED)
1059 * Encoded extended-attributes (for Win32)
1061 * For a directory, link is the same as fname, but with trailing
1062 * slash. For a linked file, link is the link.
1064 if (ff_pkt->type == FT_LNK || ff_pkt->type == FT_LNKSAVED) {
1065 Dmsg2(300, "Link %s to %s\n", ff_pkt->fname, ff_pkt->link);
1066 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%s%c%s%c", jcr->JobFiles,
1067 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, ff_pkt->link, 0,
1069 } else if (ff_pkt->type == FT_DIREND) {
1070 /* Here link is the canonical filename (i.e. with trailing slash) */
1071 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
1072 ff_pkt->type, ff_pkt->link, 0, attribs, 0, 0, attribsEx, 0);
1074 stat = bnet_fsend(sd, "%ld %d %s%c%s%c%c%s%c", jcr->JobFiles,
1075 ff_pkt->type, ff_pkt->fname, 0, attribs, 0, 0, attribsEx, 0);
1078 Dmsg2(300, ">stored: attr len=%d: %s\n", sd->msglen, sd->msg);
1080 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
1084 bnet_sig(sd, BNET_EOD); /* indicate end of attributes data */