/*
- Bacula® - The Network Backup Solution
-
- Copyright (C) 2000-2009 Free Software Foundation Europe e.V.
-
- The main author of Bacula is Kern Sibbald, with contributions from
- many others, a complete list can be found in the file AUTHORS.
- This program is Free Software; you can redistribute it and/or
- modify it under the terms of version two of the GNU General Public
- License as published by the Free Software Foundation and included
- in the file LICENSE.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA.
-
- Bacula® is a registered trademark of Kern Sibbald.
- The licensor of Bacula is the Free Software Foundation Europe
- (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
- Switzerland, email:ftf@fsfeurope.org.
+ Bacula(R) - The Network Backup Solution
+
+ Copyright (C) 2000-2017 Kern Sibbald
+
+ The original author of Bacula is Kern Sibbald, with contributions
+ from many others, a complete list can be found in the file AUTHORS.
+
+ You may use this file and others of this release according to the
+ license defined in the LICENSE file, which includes the Affero General
+ Public License, v3.0 ("AGPLv3") and some additional permissions and
+ terms pursuant to its AGPLv3 Section 7.
+
+ This notice must be preserved when any source code is
+ conveyed and/or propagated.
+
+ Bacula(R) is a registered trademark of Kern Sibbald.
*/
-/*
- * Version $Id $
- *
- */
#include "bacula.h"
#include "filed.h"
+#include "backup.h"
-static int dbglvl=200;
+static int dbglvl=100;
typedef struct PrivateCurFile {
hlink link;
char *fname;
- utime_t ctime;
- utime_t mtime;
+ char *lstat;
+ char *chksum;
+ int32_t delta_seq;
bool seen;
} CurFile;
return true;
}
+static bool accurate_send_base_file_list(JCR *jcr)
+{
+ CurFile *elt;
+ struct stat statc;
+ int32_t LinkFIc;
+ bctx_t bctx;
+
+ memset(&bctx, 0, sizeof(bctx));
+ bctx.jcr = jcr;
+ bctx.data_stream = STREAM_UNIX_ATTRIBUTES;
+
+ if (!jcr->accurate || jcr->getJobLevel() != L_FULL) {
+ return true;
+ }
+
+ if (jcr->file_list == NULL) {
+ return true;
+ }
+
+ bctx.ff_pkt = init_find_files();
+ bctx.ff_pkt->type = FT_BASE;
+
+ foreach_htable(elt, jcr->file_list) {
+ if (elt->seen) {
+ Dmsg2(dbglvl, "base file fname=%s seen=%i\n", elt->fname, elt->seen);
+ /* TODO: skip the decode and use directly the lstat field */
+ decode_stat(elt->lstat, &statc, sizeof(statc), &LinkFIc); /* decode catalog stat */
+ bctx.ff_pkt->fname = elt->fname;
+ bctx.ff_pkt->statp = statc;
+ encode_and_send_attributes(bctx);
+// free(elt->fname);
+ }
+ }
+
+ term_find_files(bctx.ff_pkt);
+ return true;
+}
+
+
/* This function is called at the end of backup
* We walk over all hash disk element, and we check
* for elt.seen.
*/
-bool accurate_send_deleted_list(JCR *jcr)
+static bool accurate_send_deleted_list(JCR *jcr)
{
CurFile *elt;
- FF_PKT *ff_pkt;
- int stream = STREAM_UNIX_ATTRIBUTES;
+ struct stat statc;
+ int32_t LinkFIc;
+ bctx_t bctx;
- if (!jcr->accurate || jcr->get_JobLevel() == L_FULL) {
- goto bail_out;
+ memset(&bctx, 0, sizeof(bctx));
+ bctx.jcr = jcr;
+ bctx.data_stream = STREAM_UNIX_ATTRIBUTES;
+
+ if (!jcr->accurate) {
+ return true;
}
if (jcr->file_list == NULL) {
- goto bail_out;
+ return true;
}
- ff_pkt = init_find_files();
- ff_pkt->type = FT_DELETED;
+ bctx.ff_pkt = init_find_files();
+ bctx.ff_pkt->type = FT_DELETED;
foreach_htable(elt, jcr->file_list) {
if (elt->seen || plugin_check_file(jcr, elt->fname)) {
continue;
}
Dmsg2(dbglvl, "deleted fname=%s seen=%i\n", elt->fname, elt->seen);
- ff_pkt->fname = elt->fname;
- ff_pkt->statp.st_mtime = elt->mtime;
- ff_pkt->statp.st_ctime = elt->ctime;
- encode_and_send_attributes(jcr, ff_pkt, stream);
+ /* TODO: skip the decode and use directly the lstat field */
+ decode_stat(elt->lstat, &statc, sizeof(statc), &LinkFIc); /* decode catalog stat */
+ bctx.ff_pkt->fname = elt->fname;
+ bctx.ff_pkt->statp.st_mtime = statc.st_mtime;
+ bctx.ff_pkt->statp.st_ctime = statc.st_ctime;
+ encode_and_send_attributes(bctx);
// free(elt->fname);
}
- term_find_files(ff_pkt);
-bail_out:
- /* TODO: clean htable when this function is not reached ? */
- accurate_free(jcr);
+ term_find_files(bctx.ff_pkt);
return true;
}
+
+/* This function is called at the end of verify job
+ * We walk over all hash disk element, and we check
+ * for elt.seen.
+ */
+static bool accurate_check_deleted_list(JCR *jcr)
+{
+ bool ret=true;
+ CurFile *elt;
+
+ if (!jcr->accurate) {
+ return true;
+ }
+
+ if (jcr->file_list == NULL) {
+ return true;
+ }
+
+ foreach_htable(elt, jcr->file_list) {
+ if (elt->seen) {
+ continue;
+ }
+ if (ret) {
+ Jmsg(jcr, M_INFO, 0, _("The following files were in the Catalog, but not in the Job data:\n"), elt->fname);
+ }
+ ret = false;
+ Jmsg(jcr, M_INFO, 0, _(" %s\n"), elt->fname);
+ }
+ return ret;
+}
+
void accurate_free(JCR *jcr)
{
if (jcr->file_list) {
}
}
-static bool accurate_add_file(JCR *jcr, char *fname, char *lstat)
+/* Send the deleted or the base file list and cleanup */
+bool accurate_finish(JCR *jcr)
{
bool ret = true;
- CurFile elt;
- struct stat statp;
- int LinkFIc;
- decode_stat(lstat, &statp, &LinkFIc); /* decode catalog stat */
- elt.ctime = statp.st_ctime;
- elt.mtime = statp.st_mtime;
- elt.seen = 0;
+ if (jcr->is_canceled() || jcr->is_incomplete()) {
+ accurate_free(jcr);
+ return ret;
+ }
+ if (jcr->accurate) {
+ if (jcr->is_JobLevel(L_FULL)) {
+ if (!jcr->rerunning) {
+ ret = accurate_send_base_file_list(jcr);
+ }
+ } else if (jcr->is_JobLevel(L_VERIFY_DATA)) {
+ ret = accurate_check_deleted_list(jcr);
+
+ } else {
+ ret = accurate_send_deleted_list(jcr);
+ }
+ accurate_free(jcr);
+ if (jcr->is_JobLevel(L_FULL)) {
+ Jmsg(jcr, M_INFO, 0, _("Space saved with Base jobs: %lld MB\n"),
+ jcr->base_size/(1024*1024));
+ }
+ }
+ return ret;
+}
+
+static bool accurate_add_file(JCR *jcr, uint32_t len,
+ char *fname, char *lstat, char *chksum,
+ int32_t delta)
+{
+ bool ret = true;
CurFile *item;
- /* we store CurFile, fname and ctime/mtime in the same chunk */
- item = (CurFile *)jcr->file_list->hash_malloc(sizeof(CurFile)+strlen(fname)+1);
- memcpy(item, &elt, sizeof(CurFile));
+
+ /* we store CurFile, fname and ctime/mtime in the same chunk
+ * we need one extra byte to handle an empty chksum
+ */
+ item = (CurFile *)jcr->file_list->hash_malloc(sizeof(CurFile)+len+3);
+ item->seen = 0;
+
+ /* TODO: see if we can optimize this part with memcpy instead of strcpy */
item->fname = (char *)item+sizeof(CurFile);
strcpy(item->fname, fname);
- jcr->file_list->insert(item->fname, item);
- Dmsg2(dbglvl, "add fname=<%s> lstat=%s\n", fname, lstat);
+ item->lstat = item->fname+strlen(item->fname)+1;
+ strcpy(item->lstat, lstat);
+
+ item->chksum = item->lstat+strlen(item->lstat)+1;
+ strcpy(item->chksum, chksum);
+
+ item->delta_seq = delta;
+
+ jcr->file_list->insert(item->fname, item);
+
+ Dmsg4(dbglvl, "add fname=<%s> lstat=%s delta_seq=%i chksum=%s\n",
+ fname, lstat, delta, chksum);
return ret;
}
+bool accurate_check_file(JCR *jcr, ATTR *attr, char *digest)
+{
+ struct stat statc;
+ int32_t LinkFIc;
+ bool stat = false;
+ char ed1[50], ed2[50];
+ CurFile elt;
+
+ if (!jcr->accurate) {
+ goto bail_out;
+ }
+
+ if (!jcr->file_list) {
+ goto bail_out; /* Not initialized properly */
+ }
+
+ if (!accurate_lookup(jcr, attr->fname, &elt)) {
+ Dmsg1(dbglvl, "accurate %s (not found)\n", attr->fname);
+ stat = true;
+ goto bail_out;
+ }
+ decode_stat(elt.lstat, &statc, sizeof(statc), &LinkFIc); /* decode catalog stat */
+
+ /*
+ * Loop over options supplied by user and verify the
+ * fields he requests.
+ */
+ if (statc.st_size != attr->statp.st_size) {
+ Dmsg3(50, "%s st_size differs. Cat: %s File: %s\n",
+ attr->fname,
+ edit_uint64((uint64_t)statc.st_size, ed1),
+ edit_uint64((uint64_t)attr->statp.st_size, ed2));
+ Jmsg(jcr, M_INFO, 0, "Cat st_size differs: %s\n", attr->fname);
+ stat = true;
+ }
+
+ if (*elt.chksum && digest && *digest) {
+ if (strcmp(digest, elt.chksum)) {
+ Dmsg3(50, "%s chksum differs. Cat: %s File: %s\n",
+ attr->fname,
+ elt.chksum,
+ digest);
+ Jmsg(jcr, M_INFO, 0, "Cat checksum differs: %s\n", attr->fname);
+ stat = true;
+ }
+ }
+
+ accurate_mark_file_as_seen(jcr, &elt);
+
+bail_out:
+ return stat;
+
+}
+
/*
* This function is called for each file seen in fileset.
* We check in file_list hash if fname have been backuped
- * the last time. After we can compare Lstat field.
- * Full Lstat usage have been removed on 6612
+ * the last time. After we can compare Lstat field.
+ * Full Lstat usage have been removed on 6612
+ *
+ * Returns: true if file has changed (must be backed up)
+ * false file not changed
*/
bool accurate_check_file(JCR *jcr, FF_PKT *ff_pkt)
{
+ int digest_stream = STREAM_NONE;
+ DIGEST *digest = NULL;
+
+ struct stat statc;
+ int32_t LinkFIc;
bool stat = false;
+ char *opts;
char *fname;
CurFile elt;
- if (!jcr->accurate || jcr->get_JobLevel() == L_FULL) {
+ ff_pkt->delta_seq = 0;
+ ff_pkt->accurate_found = false;
+
+ if (!jcr->accurate && !jcr->rerunning) {
return true;
}
+ if (!jcr->file_list) {
+ return true; /* Not initialized properly */
+ }
+
strip_path(ff_pkt);
-
+
if (S_ISDIR(ff_pkt->statp.st_mode)) {
fname = ff_pkt->link;
} else {
fname = ff_pkt->fname;
- }
+ }
if (!accurate_lookup(jcr, fname, &elt)) {
Dmsg1(dbglvl, "accurate %s (not found)\n", fname);
stat = true;
+ unstrip_path(ff_pkt);
goto bail_out;
}
- if (elt.seen) { /* file has been seen ? */
- Dmsg1(dbglvl, "accurate %s (already seen)\n", fname);
- goto bail_out;
+ unstrip_path(ff_pkt); /* Get full path back */
+ ff_pkt->accurate_found = true;
+ ff_pkt->delta_seq = elt.delta_seq;
+
+ decode_stat(elt.lstat, &statc, sizeof(statc), &LinkFIc); /* decode catalog stat */
+
+ if (!jcr->rerunning && (jcr->getJobLevel() == L_FULL)) {
+ opts = ff_pkt->BaseJobOpts;
+ } else {
+ opts = ff_pkt->AccurateOpts;
}
/*
- * We check only mtime/ctime like with the normal
- * incremental/differential mode
+ * Loop over options supplied by user and verify the
+ * fields he requests.
*/
- if (elt.mtime != ff_pkt->statp.st_mtime) {
-// Jmsg(jcr, M_SAVED, 0, _("%s st_mtime differs\n"), fname);
- Dmsg3(dbglvl, "%s st_mtime differs (%i!=%i)\n",
- fname, elt.mtime, ff_pkt->statp.st_mtime);
- stat = true;
- } else if (!(ff_pkt->flags & FO_MTIMEONLY)
- && (elt.ctime != ff_pkt->statp.st_ctime)) {
-// Jmsg(jcr, M_SAVED, 0, _("%s st_ctime differs\n"), fname);
- Dmsg3(dbglvl, "%s st_ctime differs\n",
- fname, elt.ctime, ff_pkt->statp.st_ctime);
- stat = true;
+ for (char *p=opts; !stat && *p; p++) {
+ char ed1[30], ed2[30];
+ switch (*p) {
+ case 'i': /* compare INODEs */
+ if (statc.st_ino != ff_pkt->statp.st_ino) {
+ Dmsg3(dbglvl-1, "%s st_ino differ. Cat: %s File: %s\n",
+ fname,
+ edit_uint64((uint64_t)statc.st_ino, ed1),
+ edit_uint64((uint64_t)ff_pkt->statp.st_ino, ed2));
+ stat = true;
+ }
+ break;
+ case 'p': /* permissions bits */
+ /* TODO: If something change only in perm, user, group
+ * Backup only the attribute stream
+ */
+ if (statc.st_mode != ff_pkt->statp.st_mode) {
+ Dmsg3(dbglvl-1, "%s st_mode differ. Cat: %x File: %x\n",
+ fname,
+ (uint32_t)statc.st_mode, (uint32_t)ff_pkt->statp.st_mode);
+ stat = true;
+ }
+ break;
+ case 'n': /* number of links */
+ if (statc.st_nlink != ff_pkt->statp.st_nlink) {
+ Dmsg3(dbglvl-1, "%s st_nlink differ. Cat: %d File: %d\n",
+ fname,
+ (uint32_t)statc.st_nlink, (uint32_t)ff_pkt->statp.st_nlink);
+ stat = true;
+ }
+ break;
+ case 'u': /* user id */
+ if (statc.st_uid != ff_pkt->statp.st_uid) {
+ Dmsg3(dbglvl-1, "%s st_uid differ. Cat: %u File: %u\n",
+ fname,
+ (uint32_t)statc.st_uid, (uint32_t)ff_pkt->statp.st_uid);
+ stat = true;
+ }
+ break;
+ case 'g': /* group id */
+ if (statc.st_gid != ff_pkt->statp.st_gid) {
+ Dmsg3(dbglvl-1, "%s st_gid differ. Cat: %u File: %u\n",
+ fname,
+ (uint32_t)statc.st_gid, (uint32_t)ff_pkt->statp.st_gid);
+ stat = true;
+ }
+ break;
+ case 's': /* size */
+ if (statc.st_size != ff_pkt->statp.st_size) {
+ Dmsg3(dbglvl-1, "%s st_size differ. Cat: %s File: %s\n",
+ fname,
+ edit_uint64((uint64_t)statc.st_size, ed1),
+ edit_uint64((uint64_t)ff_pkt->statp.st_size, ed2));
+ stat = true;
+ }
+ break;
+ case 'a': /* access time */
+ if (statc.st_atime != ff_pkt->statp.st_atime) {
+ Dmsg1(dbglvl-1, "%s st_atime differs\n", fname);
+ stat = true;
+ }
+ break;
+ case 'm': /* modification time */
+ if (statc.st_mtime != ff_pkt->statp.st_mtime) {
+ Dmsg1(dbglvl-1, "%s st_mtime differs\n", fname);
+ stat = true;
+ }
+ break;
+ case 'M': /* Look mtime/ctime like normal incremental backup */
+ if (ff_pkt->incremental &&
+ (ff_pkt->statp.st_mtime > ff_pkt->save_time &&
+ ((ff_pkt->flags & FO_MTIMEONLY) ||
+ ff_pkt->statp.st_ctime > ff_pkt->save_time)))
+ {
+ Dmsg1(dbglvl-1, "%s mtime/ctime more recent than save_time\n", fname);
+ stat = true;
+ }
+ break;
+ case 'c': /* ctime */
+ if (statc.st_ctime != ff_pkt->statp.st_ctime) {
+ Dmsg1(dbglvl-1, "%s st_ctime differs\n", fname);
+ stat = true;
+ }
+ break;
+ case 'd': /* file size decrease */
+ if (statc.st_size > ff_pkt->statp.st_size) {
+ Dmsg3(dbglvl-1, "%s st_size decrease. Cat: %s File: %s\n",
+ fname,
+ edit_uint64((uint64_t)statc.st_size, ed1),
+ edit_uint64((uint64_t)ff_pkt->statp.st_size, ed2));
+ stat = true;
+ }
+ break;
+ case 'A': /* Always backup a file */
+ stat = true;
+ break;
+ /* TODO: cleanup and factorise this function with verify.c */
+ case '5': /* compare MD5 */
+ case '1': /* compare SHA1 */
+ /*
+ * The remainder of the function is all about getting the checksum.
+ * First we initialise, then we read files, other streams and Finder Info.
+ */
+ if (!stat && ff_pkt->type != FT_LNKSAVED &&
+ (S_ISREG(ff_pkt->statp.st_mode) &&
+ ff_pkt->flags & (FO_MD5|FO_SHA1|FO_SHA256|FO_SHA512)))
+ {
+
+ if (!*elt.chksum && !jcr->rerunning) {
+ Jmsg(jcr, M_WARNING, 0, _("Cannot verify checksum for %s\n"),
+ ff_pkt->fname);
+ stat = true;
+ break;
+ }
+
+ /*
+ * Create our digest context. If this fails, the digest will be set
+ * to NULL and not used.
+ */
+ if (ff_pkt->flags & FO_MD5) {
+ digest = crypto_digest_new(jcr, CRYPTO_DIGEST_MD5);
+ digest_stream = STREAM_MD5_DIGEST;
+
+ } else if (ff_pkt->flags & FO_SHA1) {
+ digest = crypto_digest_new(jcr, CRYPTO_DIGEST_SHA1);
+ digest_stream = STREAM_SHA1_DIGEST;
+
+ } else if (ff_pkt->flags & FO_SHA256) {
+ digest = crypto_digest_new(jcr, CRYPTO_DIGEST_SHA256);
+ digest_stream = STREAM_SHA256_DIGEST;
+
+ } else if (ff_pkt->flags & FO_SHA512) {
+ digest = crypto_digest_new(jcr, CRYPTO_DIGEST_SHA512);
+ digest_stream = STREAM_SHA512_DIGEST;
+ }
+
+ /* Did digest initialization fail? */
+ if (digest_stream != STREAM_NONE && digest == NULL) {
+ Jmsg(jcr, M_WARNING, 0, _("%s digest initialization failed\n"),
+ stream_to_ascii(digest_stream));
+ }
+
+ /* compute MD5 or SHA1 hash */
+ if (digest) {
+ char md[CRYPTO_DIGEST_MAX_SIZE];
+ uint32_t size;
+
+ size = sizeof(md);
+
+ if (digest_file(jcr, ff_pkt, digest) != 0) {
+ jcr->JobErrors++;
+
+ } else if (crypto_digest_finalize(digest, (uint8_t *)md, &size)) {
+ char *digest_buf;
+ const char *digest_name;
+
+ digest_buf = (char *)malloc(BASE64_SIZE(size));
+ digest_name = crypto_digest_name(digest);
+
+ bin_to_base64(digest_buf, BASE64_SIZE(size), md, size, true);
+
+ if (strcmp(digest_buf, elt.chksum)) {
+ Dmsg4(dbglvl,"%s %s chksum diff. Cat: %s File: %s\n",
+ fname,
+ digest_name,
+ elt.chksum,
+ digest_buf);
+ stat = true;
+ }
+
+ free(digest_buf);
+ }
+ crypto_digest_free(digest);
+ }
+ }
+
+ break;
+ case ':':
+ case 'J':
+ case 'C':
+ default:
+ break;
+ }
}
- accurate_mark_file_as_seen(jcr, &elt);
-// Dmsg2(dbglvl, "accurate %s = %i\n", fname, stat);
+ /* In Incr/Diff accurate mode, we mark all files as seen
+ * When in Full+Base mode, we mark only if the file match exactly
+ */
+ if (jcr->getJobLevel() == L_FULL) {
+ if (!stat) {
+ /* compute space saved with basefile */
+ jcr->base_size += ff_pkt->statp.st_size;
+ accurate_mark_file_as_seen(jcr, &elt);
+ }
+ } else {
+ accurate_mark_file_as_seen(jcr, &elt);
+ }
bail_out:
- unstrip_path(ff_pkt);
return stat;
}
-/*
+/*
* TODO: use big buffer from htable
*/
int accurate_cmd(JCR *jcr)
{
BSOCK *dir = jcr->dir_bsock;
- int len;
+ int lstat_pos, chksum_pos;
int32_t nb;
+ uint16_t delta_seq;
- if (!jcr->accurate || job_canceled(jcr) || jcr->get_JobLevel()==L_FULL) {
+ if (job_canceled(jcr)) {
return true;
}
if (sscanf(dir->msg, "accurate files=%ld", &nb) != 1) {
return false;
}
+ jcr->accurate = true;
+
accurate_init(jcr, nb);
/*
* buffer = sizeof(CurFile) + dirmsg
- * dirmsg = fname + \0 + lstat
+ * dirmsg = fname + \0 + lstat + \0 + checksum + \0 + delta_seq + \0
*/
/* get current files */
while (dir->recv() >= 0) {
- len = strlen(dir->msg) + 1;
- if (len < dir->msglen) {
- accurate_add_file(jcr, dir->msg, dir->msg + len);
+ lstat_pos = strlen(dir->msg) + 1;
+ if (lstat_pos < dir->msglen) {
+ chksum_pos = lstat_pos + strlen(dir->msg + lstat_pos) + 1;
+
+ if (chksum_pos >= dir->msglen) {
+ chksum_pos = lstat_pos - 1; /* tweak: no checksum, point to the last \0 */
+ delta_seq = 0;
+ } else {
+ delta_seq = str_to_int32(dir->msg +
+ chksum_pos +
+ strlen(dir->msg + chksum_pos) + 1);
+ }
+
+ accurate_add_file(jcr, dir->msglen,
+ dir->msg, /* Path */
+ dir->msg + lstat_pos, /* LStat */
+ dir->msg + chksum_pos, /* CheckSum */
+ delta_seq); /* Delta Sequence */
}
}
projects / bacula / bacula / blobdiff