2 * Copyright (C) Joerg Lenneis 2003
3 * Copyright (C) Frank Lahm 2009
4 * All Rights Reserved. See COPYING.
9 #endif /* HAVE_CONFIG_H */
14 #ifdef HAVE_SYS_TYPES_H
15 #include <sys/types.h>
16 #endif /* HAVE_SYS_TYPES_H */
18 #include <sys/types.h>
20 #include <sys/cdefs.h>
22 #include <atalk/logger.h>
28 #define DB_ERRLOGFILE "db_errlog"
30 static char *old_dbfiles[] = {"cnid.db", NULL};
33 static int upgrade_required(const DBD *dbd)
41 if ( ! dbd->db_filename)
46 if ((cwd = open(".", O_RDONLY)) < 0) {
47 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
51 /* chdir to db_envhome */
52 if ((chdir(dbd->db_envhome)) != 0) {
53 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
58 for (i = 0; old_dbfiles[i] != NULL; i++) {
59 if ( !(stat(old_dbfiles[i], &st) < 0) ) {
63 if (errno != ENOENT) {
64 LOG(log_error, logtype_cnid, "cnid_open: Checking %s gave %s", old_dbfiles[i], strerror(errno));
71 if ((fchdir(cwd)) != 0) {
72 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
77 return (ret < 0 ? ret : found);
81 * Upgrade CNID database versions
83 * For now this does nothing, as upgrading from ver. 0 to 1 is done in dbif_open
85 static int dbif_upgrade(DBD *dbd)
89 if ((version = dbif_getversion(dbd)) == -1)
93 * Do upgrade stuff ...
96 /* Write current version to database */
97 if (version != CNID_VERSION) {
98 if (dbif_setversion(dbd, CNID_VERSION) != 0)
102 LOG(log_debug, logtype_cnid, "Finished CNID database version upgrade check");
107 /* --------------- */
108 static int dbif_openlog(DBD *dbd)
113 if ( ! dbd->db_filename)
118 if ((cwd = open(".", O_RDONLY)) < 0) {
119 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
123 /* chdir to db_envhome */
124 if ((chdir(dbd->db_envhome)) != 0) {
125 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
130 if ((dbd->db_errlog = fopen(DB_ERRLOGFILE, "a")) == NULL)
131 LOG(log_warning, logtype_cnid, "error creating/opening DB errlogfile: %s", strerror(errno));
133 if (dbd->db_errlog != NULL) {
134 dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
135 dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
140 if ((fchdir(cwd)) != 0) {
141 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
149 /* --------------- */
150 static int dbif_logautorem(DBD *dbd)
154 char **logfiles = NULL;
157 if ( ! dbd->db_filename)
162 if ((cwd = open(".", O_RDONLY)) < 0) {
163 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
167 /* chdir to db_envhome */
168 if ((chdir(dbd->db_envhome)) != 0) {
169 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
174 if ((ret = dbd->db_env->log_archive(dbd->db_env, &logfiles, 0)) != 0) {
175 LOG(log_error, logtype_cnid, "error getting list of stale logfiles: %s",
177 dbd->db_env->close(dbd->db_env, 0);
183 if (logfiles != NULL) {
184 for (file = logfiles; *file != NULL; file++) {
185 if (unlink(*file) < 0)
186 LOG(log_warning, logtype_cnid, "Error removing stale logfile %s: %s", *file, strerror(errno));
193 if ((fchdir(cwd)) != 0) {
194 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
202 #include <atalk/util.h>
204 /* --------------- */
205 int dbif_stamp(DBD *dbd, void *buffer, int size)
214 if ((cwd = open(".", O_RDONLY)) < 0) {
215 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
219 /* chdir to db_envhome */
220 if ((chdir(dbd->db_envhome)) != 0) {
221 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
225 if ((rc = stat(dbd->db_table[DBIF_CNID].name, &st)) < 0) {
226 LOG(log_error, logtype_cnid, "error stating database %s: %s", dbd->db_table[DBIF_CNID].name, db_strerror(errno));
230 LOG(log_maxdebug, logtype_cnid,"stamp: %s", asctime(localtime(&st.st_ctime)));
232 memset(buffer, 0, size);
233 memcpy(buffer, &st.st_ctime, sizeof(st.st_ctime));
235 if ((fchdir(cwd)) != 0) {
236 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
243 /* --------------- */
244 DBD *dbif_init(const char *envhome, const char *filename)
248 if ( NULL == (dbd = calloc(sizeof(DBD), 1)) )
251 /* filename == NULL means in memory db */
256 dbd->db_envhome = strdup(envhome);
257 if (NULL == dbd->db_envhome) {
262 dbd->db_filename = strdup(filename);
263 if (NULL == dbd->db_filename) {
264 free(dbd->db_envhome);
270 dbd->db_table[DBIF_CNID].name = "cnid2.db";
271 dbd->db_table[DBIF_IDX_DEVINO].name = "devino.db";
272 dbd->db_table[DBIF_IDX_DIDNAME].name = "didname.db";
273 dbd->db_table[DBIF_IDX_NAME].name = "name.db";
275 dbd->db_table[DBIF_CNID].type = DB_BTREE;
276 dbd->db_table[DBIF_IDX_DEVINO].type = DB_BTREE;
277 dbd->db_table[DBIF_IDX_DIDNAME].type = DB_BTREE;
278 dbd->db_table[DBIF_IDX_NAME].type = DB_BTREE;
280 dbd->db_table[DBIF_CNID].openflags = DB_CREATE;
281 dbd->db_table[DBIF_IDX_DEVINO].openflags = DB_CREATE;
282 dbd->db_table[DBIF_IDX_DIDNAME].openflags = DB_CREATE;
283 dbd->db_table[DBIF_IDX_NAME].openflags = DB_CREATE;
285 dbd->db_table[DBIF_IDX_NAME].flags = DB_DUPSORT;
291 We must open the db_env with an absolute pathname, as `dbd` keeps chdir'ing, which
292 breaks e.g. bdb logfile-rotation with relative pathnames.
293 But still we use relative paths with upgrade_required() and the DB_ERRLOGFILE
294 in order to avoid creating absolute paths by copying. Both have no problem with
297 int dbif_env_open(DBD *dbd, struct db_param *dbp, uint32_t dbenv_oflags)
301 /* Refuse to do anything if this is an old version of the CNID database */
302 if (upgrade_required(dbd)) {
303 LOG(log_error, logtype_cnid, "Found version 1 of the CNID database. Please upgrade to version 2");
307 if ((ret = db_env_create(&dbd->db_env, 0))) {
308 LOG(log_error, logtype_cnid, "error creating DB environment: %s",
314 if ((dbif_openlog(dbd)) != 0)
317 if (dbenv_oflags & DB_RECOVER) {
319 LOG(log_debug, logtype_cnid, "Running recovery");
321 dbd->db_env->set_verbose(dbd->db_env, DB_VERB_RECOVERY, 1);
322 /* Open the database for recovery using DB_PRIVATE option which is faster */
323 if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags | DB_PRIVATE, 0))) {
324 LOG(log_error, logtype_cnid, "error opening DB environment: %s",
326 dbd->db_env->close(dbd->db_env, 0);
330 dbenv_oflags = (dbenv_oflags & ~DB_RECOVER);
332 if (dbd->db_errlog != NULL)
333 fflush(dbd->db_errlog);
335 if ((ret = dbd->db_env->close(dbd->db_env, 0))) {
336 LOG(log_error, logtype_cnid, "error closing DB environment after recovery: %s",
341 dbd->db_errlog = NULL;
343 if ((ret = db_env_create(&dbd->db_env, 0))) {
344 LOG(log_error, logtype_cnid, "error creating DB environment after recovery: %s",
350 if ((dbif_openlog(dbd)) != 0)
353 LOG(log_debug, logtype_cnid, "Finished recovery.");
356 if ((ret = dbd->db_env->set_cachesize(dbd->db_env, 0, 1024 * dbp->cachesize, 0))) {
357 LOG(log_error, logtype_cnid, "error setting DB environment cachesize to %i: %s",
358 dbp->cachesize, db_strerror(ret));
359 dbd->db_env->close(dbd->db_env, 0);
364 if ((ret = dbd->db_env->set_lk_max_locks(dbd->db_env, dbp->maxlocks))) {
365 LOG(log_error, logtype_cnid, "error setting DB environment maxlocks to %i: %s",
366 10000, db_strerror(ret));
367 dbd->db_env->close(dbd->db_env, 0);
372 if ((ret = dbd->db_env->set_lk_max_objects(dbd->db_env, dbp->maxlockobjs))) {
373 LOG(log_error, logtype_cnid, "error setting DB environment max lockobjects to %i: %s",
374 10000, db_strerror(ret));
375 dbd->db_env->close(dbd->db_env, 0);
380 if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags, 0))) {
381 LOG(log_error, logtype_cnid, "error opening DB environment after recovery: %s",
383 dbd->db_env->close(dbd->db_env, 0);
388 if ((ret = dbd->db_env->set_flags(dbd->db_env, DB_AUTO_COMMIT, 1))) {
389 LOG(log_error, logtype_cnid, "error setting DB_AUTO_COMMIT flag: %s",
391 dbd->db_env->close(dbd->db_env, 0);
396 if (dbp->logfile_autoremove) {
397 if ((dbif_logautorem(dbd)) != 0)
400 #if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 7)
401 if ((ret = dbd->db_env->log_set_config(dbd->db_env, DB_LOG_AUTO_REMOVE, 1))) {
402 LOG(log_error, logtype_cnid, "error setting DB_LOG_AUTO_REMOVE flag: %s",
404 dbd->db_env->close(dbd->db_env, 0);
409 if ((ret = dbd->db_env->set_flags(dbd->db_env, DB_LOG_AUTOREMOVE, 1))) {
410 LOG(log_error, logtype_cnid, "error setting DB_LOG_AUTOREMOVE flag: %s",
412 dbd->db_env->close(dbd->db_env, 0);
422 /* --------------- */
423 int dbif_open(DBD *dbd, struct db_param *dbp, int reindex)
430 /* Try to upgrade if it's a normal on-disk database */
431 if (dbd->db_envhome) {
433 if ((cwd = open(".", O_RDONLY)) < 0) {
434 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
438 /* chdir to db_envhome. makes it easier checking for old db files and creating db_errlog file */
439 if ((chdir(dbd->db_envhome)) != 0) {
440 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
444 if ((stat(dbd->db_filename, &st)) == 0) {
445 LOG(log_debug, logtype_cnid, "See if we can upgrade the CNID database...");
446 if ((ret = db_create(&upgrade_db, dbd->db_env, 0))) {
447 LOG(log_error, logtype_cnid, "error creating handle for database: %s", db_strerror(ret));
450 if ((ret = upgrade_db->upgrade(upgrade_db, dbd->db_filename, 0))) {
451 LOG(log_error, logtype_cnid, "error upgarding database: %s", db_strerror(ret));
454 if ((ret = upgrade_db->close(upgrade_db, 0))) {
455 LOG(log_error, logtype_cnid, "error closing database: %s", db_strerror(ret));
458 if ((ret = dbd->db_env->txn_checkpoint(dbd->db_env, 0, 0, DB_FORCE))) {
459 LOG(log_error, logtype_cnid, "error forcing checkpoint: %s", db_strerror(ret));
462 LOG(log_debug, logtype_cnid, "Finished BerkeleyBD upgrade check");
465 if ((fchdir(cwd)) != 0) {
466 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
471 /* Now open databases ... */
472 for (i = 0; i != DBIF_DB_CNT; i++) {
473 if ((ret = db_create(&dbd->db_table[i].db, dbd->db_env, 0))) {
474 LOG(log_error, logtype_cnid, "error creating handle for database %s: %s",
475 dbd->db_table[i].name, db_strerror(ret));
479 if (dbd->db_table[i].flags) {
480 if ((ret = dbd->db_table[i].db->set_flags(dbd->db_table[i].db,
481 dbd->db_table[i].flags))) {
482 LOG(log_error, logtype_cnid, "error setting flags for database %s: %s",
483 dbd->db_table[i].name, db_strerror(ret));
488 if ( ! dbd->db_env) { /* In memory db */
489 if ((ret = dbd->db_table[i].db->set_cachesize(dbd->db_table[i].db,
492 4)) /* split in 4 memory chunks */
494 LOG(log_error, logtype_cnid, "error setting cachesize %u KB for database %s: %s",
495 dbp->cachesize / 1024, dbd->db_table[i].name, db_strerror(ret));
500 if (dbd->db_table[i].db->open(dbd->db_table[i].db,
503 dbd->db_table[i].name,
504 dbd->db_table[i].type,
505 dbd->db_table[i].openflags,
507 LOG(log_error, logtype_cnid, "Cant open database");
511 if (reindex && i > 0) {
512 LOG(log_info, logtype_cnid, "Truncating CNID index.");
513 if ((ret = dbd->db_table[i].db->truncate(dbd->db_table[i].db, NULL, &count, 0))) {
514 LOG(log_error, logtype_cnid, "error truncating database %s: %s",
515 dbd->db_table[i].name, db_strerror(ret));
521 /* TODO: Implement CNID DB versioning info on new databases. */
523 /* Associate the secondary with the primary. */
525 LOG(log_info, logtype_cnid, "Reindexing did/name index...");
526 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[DBIF_CNID].db,
528 dbd->db_table[DBIF_IDX_DIDNAME].db,
530 (reindex) ? DB_CREATE : 0))
532 LOG(log_error, logtype_cnid, "Failed to associate didname database: %s",db_strerror(ret));
536 LOG(log_info, logtype_cnid, "... done.");
539 LOG(log_info, logtype_cnid, "Reindexing dev/ino index...");
540 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[0].db,
542 dbd->db_table[DBIF_IDX_DEVINO].db,
544 (reindex) ? DB_CREATE : 0))
546 LOG(log_error, logtype_cnid, "Failed to associate devino database: %s",db_strerror(ret));
550 LOG(log_info, logtype_cnid, "... done.");
553 LOG(log_info, logtype_cnid, "Reindexing name index...");
555 int version = CNID_VERSION;
556 if (dbd->db_envhome) {
557 if ((version = dbif_getversion(dbd)) == -1)
561 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[0].db,
563 dbd->db_table[DBIF_IDX_NAME].db,
567 ((CNID_VERSION == CNID_VERSION_1) && (version == CNID_VERSION_0)))
568 ? DB_CREATE : 0)) != 0) {
569 LOG(log_error, logtype_cnid, "Failed to associate name index: %s", db_strerror(ret));
573 LOG(log_info, logtype_cnid, "... done.");
575 if ((dbd->db_envhome) && ((ret = dbif_upgrade(dbd)) != 0)) {
576 LOG(log_error, logtype_cnid, "Error upgrading CNID database to version %d", CNID_VERSION);
583 /* ------------------------ */
584 static int dbif_closedb(DBD *dbd)
590 for (i = DBIF_DB_CNT -1; i >= 0; i--) {
591 if (dbd->db_table[i].db != NULL && (ret = dbd->db_table[i].db->close(dbd->db_table[i].db, 0))) {
592 LOG(log_error, logtype_cnid, "error closing database %s: %s", dbd->db_table[i].name, db_strerror(ret));
601 /* ------------------------ */
602 int dbif_close(DBD *dbd)
607 if (dbif_closedb(dbd))
610 if (dbd->db_env != NULL && (ret = dbd->db_env->close(dbd->db_env, 0))) {
611 LOG(log_error, logtype_cnid, "error closing DB environment: %s", db_strerror(ret));
614 if (dbd->db_errlog != NULL && fclose(dbd->db_errlog) == EOF) {
615 LOG(log_error, logtype_cnid, "error closing DB logfile: %s", strerror(errno));
619 free(dbd->db_filename);
629 In order to support silent database upgrades:
630 destroy env at cnid_dbd shutdown.
632 int dbif_env_remove(const char *path)
637 LOG(log_debug, logtype_cnid, "Reopening BerkeleyDB environment");
639 if (NULL == (dbd = dbif_init(path, "cnid2.db")))
642 /* Get db_env handle */
643 if ((ret = db_env_create(&dbd->db_env, 0))) {
644 LOG(log_error, logtype_cnid, "error creating DB environment: %s", db_strerror(ret));
649 if ((dbif_openlog(dbd)) != 0)
652 /* Open environment with recovery */
653 if ((ret = dbd->db_env->open(dbd->db_env,
655 DB_CREATE | DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_LOCK | DB_INIT_TXN | DB_RECOVER | DB_PRIVATE,
657 LOG(log_error, logtype_cnid, "error opening DB environment: %s",
659 dbd->db_env->close(dbd->db_env, 0);
664 if (dbd->db_errlog != NULL)
665 fflush(dbd->db_errlog);
667 /* Remove logfiles */
668 if ((ret = dbd->db_env->log_archive(dbd->db_env, NULL, DB_ARCH_REMOVE))) {
669 LOG(log_error, logtype_cnid, "error removing transaction logfiles: %s", db_strerror(ret));
673 if ((ret = dbd->db_env->close(dbd->db_env, 0))) {
674 LOG(log_error, logtype_cnid, "error closing DB environment after recovery: %s", db_strerror(ret));
679 LOG(log_debug, logtype_cnid, "BerkeleyDB environment recovery done.");
681 /* Get a new db_env handle and then remove environment */
682 if ((ret = db_env_create(&dbd->db_env, 0))) {
683 LOG(log_error, logtype_cnid, "error acquiring db_end handle: %s", db_strerror(ret));
687 if ((ret = dbd->db_env->remove(dbd->db_env, dbd->db_envhome, 0))) {
688 LOG(log_error, logtype_cnid, "error removing BerkeleyDB environment: %s", db_strerror(ret));
692 LOG(log_debug, logtype_cnid, "Removed BerkeleyDB environment.");
698 * The following three functions are wrappers for DB->get(), DB->put() and DB->del().
699 * All three return -1 on error. dbif_get()/dbif_del return 1 if the key was found and 0
700 * otherwise. dbif_put() returns 0 if key/val was successfully updated and 1 if
701 * the DB_NOOVERWRITE flag was specified and the key already exists.
703 * All return codes other than DB_NOTFOUND and DB_KEYEXIST from the DB->()
704 * functions are not expected and therefore error conditions.
707 int dbif_get(DBD *dbd, const int dbi, DBT *key, DBT *val, u_int32_t flags)
711 ret = dbd->db_table[dbi].db->get(dbd->db_table[dbi].db,
717 if (ret == DB_NOTFOUND)
720 LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
721 dbd->db_table[dbi].name, db_strerror(ret));
727 /* search by secondary return primary */
728 int dbif_pget(DBD *dbd, const int dbi, DBT *key, DBT *pkey, DBT *val, u_int32_t flags)
732 ret = dbd->db_table[dbi].db->pget(dbd->db_table[dbi].db,
739 if (ret == DB_NOTFOUND || ret == DB_SECONDARY_BAD) {
743 LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
744 dbd->db_table[dbi].name, db_strerror(ret));
750 /* -------------------------- */
751 int dbif_put(DBD *dbd, const int dbi, DBT *key, DBT *val, u_int32_t flags)
755 if (dbif_txn_begin(dbd) < 0) {
756 LOG(log_error, logtype_cnid, "error setting key/value in %s", dbd->db_table[dbi].name);
760 ret = dbd->db_table[dbi].db->put(dbd->db_table[dbi].db,
768 if ((flags & DB_NOOVERWRITE) && ret == DB_KEYEXIST) {
771 LOG(log_error, logtype_cnid, "error setting key/value in %s: %s",
772 dbd->db_table[dbi].name, db_strerror(ret));
779 int dbif_del(DBD *dbd, const int dbi, DBT *key, u_int32_t flags)
783 /* For cooperation with the dbd utility and its usage of a cursor */
785 dbd->db_cur->close(dbd->db_cur);
789 if (dbif_txn_begin(dbd) < 0) {
790 LOG(log_error, logtype_cnid, "error deleting key/value from %s", dbd->db_table[dbi].name);
794 ret = dbd->db_table[dbi].db->del(dbd->db_table[dbi].db,
799 if (ret == DB_NOTFOUND || ret == DB_SECONDARY_BAD)
802 LOG(log_error, logtype_cnid, "error deleting key/value from %s: %s",
803 dbd->db_table[dbi].name, db_strerror(ret));
810 * Inititialize rootinfo key (which has CNID 0 as key)
812 * This also "stamps" the database, which means storing st.st_ctime of the
813 * "cnid2.db" file in the rootinfo data at the DEV offset
815 * @param dbd (rw) database handle
816 * @param version (r) database version number
818 * @returns -1 on error, 0 on success
820 static int dbif_init_rootinfo(DBD *dbd, int version)
824 char buf[ROOTINFO_DATALEN];
826 LOG(log_debug, logtype_cnid, "Setting CNID database version to %u", version);
831 memset(&key, 0, sizeof(key));
832 memset(&data, 0, sizeof(data));
833 key.data = ROOTINFO_KEY;
834 key.size = ROOTINFO_KEYLEN;
836 data.size = ROOTINFO_DATALEN;
838 memcpy(buf, ROOTINFO_DATA, ROOTINFO_DATALEN);
839 memcpy(buf + CNID_DID_OFS, &v, sizeof(v));
840 if (dbif_stamp(dbd, buf + CNID_DEV_OFS, CNID_DEV_LEN) < 0)
843 if (dbif_put(dbd, DBIF_CNID, &key, &data, 0) < 0)
850 * Initialize or return CNID database version number
852 * Calls dbif_init_rootinfo if the rootinfo key does not exist yet
854 * @returns -1 on error, version number otherwise
856 int dbif_getversion(DBD *dbd)
862 memset(&key, 0, sizeof(key));
863 memset(&data, 0, sizeof(data));
864 key.data = ROOTINFO_KEY;
865 key.size = ROOTINFO_KEYLEN;
867 switch (dbif_get(dbd, DBIF_CNID, &key, &data, 0)) {
869 memcpy(&version, (char *)data.data + CNID_DID_OFS, sizeof(version));
870 version = ntohl(version);
871 LOG(log_debug, logtype_cnid, "CNID database version %u", version);
874 case 0: /* not found */
875 if (dbif_init_rootinfo(dbd, CNID_VERSION) != 0)
886 * Set CNID database version number
888 * Initializes rootinfo key as neccessary, as does dbif_getversion
889 * @returns -1 on error, version number otherwise
891 int dbif_setversion(DBD *dbd, int version)
897 LOG(log_debug, logtype_cnid, "Setting CNID database version to %u", version);
902 memset(&key, 0, sizeof(key));
903 memset(&data, 0, sizeof(data));
904 key.data = ROOTINFO_KEY;
905 key.size = ROOTINFO_KEYLEN;
907 if ((ret = dbif_get(dbd, DBIF_CNID, &key, &data, 0)) == -1)
910 /* No rootinfo key yet, init it */
911 if (dbif_init_rootinfo(dbd, CNID_VERSION) != 0)
914 if (dbif_get(dbd, DBIF_CNID, &key, &data, 0) == -1)
917 memcpy((char *)data.data + CNID_DID_OFS, &v, sizeof(v));
918 data.size = ROOTINFO_DATALEN;
919 if (dbif_put(dbd, DBIF_CNID, &key, &data, 0) < 0)
926 * Search the database by name
928 * @param resbuf (w) buffer for search results CNIDs, maxsize is assumed to be
929 * DBD_MAX_SRCH_RSLTS * sizefof(cnid_t)
931 * @returns -1 on error, 0 when nothing found, else the number of matches
933 int dbif_search(DBD *dbd, DBT *key, char *resbuf)
939 char *cnids = resbuf;
941 char *namebkp = key->data;
942 int namelenbkp = key->size;
944 memset(&pkey, 0, sizeof(DBT));
945 memset(&data, 0, sizeof(DBT));
948 ret = dbd->db_table[DBIF_IDX_NAME].db->cursor(dbd->db_table[DBIF_IDX_NAME].db,
953 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(ret));
958 ret = cursorp->pget(cursorp, key, &pkey, &data, DB_SET_RANGE);
959 while (count < DBD_MAX_SRCH_RSLTS && ret != DB_NOTFOUND) {
960 if (!((namelenbkp <= key->size) && (strncmp(namebkp, key->data, namelenbkp) == 0)))
963 memcpy(cnids, pkey.data, sizeof(cnid_t));
964 memcpy(&cnid, pkey.data, sizeof(cnid_t));
965 cnids += sizeof(cnid_t);
966 LOG(log_debug, logtype_cnid, "match: CNID %" PRIu32, ntohl(cnid));
968 ret = cursorp->pget(cursorp, key, &pkey, &data, DB_NEXT);
975 cursorp->close(cursorp);
979 int dbif_txn_begin(DBD *dbd)
983 /* If we already have an active txn, just return */
987 /* If our DBD has no env, just return (-> in memory db) */
988 if (dbd->db_env == NULL)
991 ret = dbd->db_env->txn_begin(dbd->db_env, NULL, &dbd->db_txn, 0);
994 LOG(log_error, logtype_cnid, "error starting transaction: %s", db_strerror(ret));
1000 int dbif_txn_commit(DBD *dbd)
1007 /* If our DBD has no env, just return (-> in memory db) */
1008 if (dbd->db_env == NULL)
1011 ret = dbd->db_txn->commit(dbd->db_txn, 0);
1015 LOG(log_error, logtype_cnid, "error committing transaction: %s", db_strerror(ret));
1021 int dbif_txn_abort(DBD *dbd)
1028 /* If our DBD has no env, just return (-> in memory db) */
1029 if (dbd->db_env == NULL)
1032 ret = dbd->db_txn->abort(dbd->db_txn);
1036 LOG(log_error, logtype_cnid, "error aborting transaction: %s", db_strerror(ret));
1043 ret = 1 -> commit txn
1044 ret = 0 -> abort txn -> exit!
1045 anything else -> exit!
1047 void dbif_txn_close(DBD *dbd, int ret)
1050 if (dbif_txn_abort(dbd) < 0) {
1051 LOG( log_error, logtype_cnid, "Fatal error aborting transaction. Exiting!");
1054 } else if (ret == 1) {
1055 ret = dbif_txn_commit(dbd);
1057 LOG( log_error, logtype_cnid, "Fatal error committing transaction. Exiting!");
1064 int dbif_txn_checkpoint(DBD *dbd, u_int32_t kbyte, u_int32_t min, u_int32_t flags)
1067 ret = dbd->db_env->txn_checkpoint(dbd->db_env, kbyte, min, flags);
1069 LOG(log_error, logtype_cnid, "error checkpointing transaction susystem: %s", db_strerror(ret));
1075 int dbif_count(DBD *dbd, const int dbi, u_int32_t *count)
1079 DB *db = dbd->db_table[dbi].db;
1081 ret = db->stat(db, NULL, &sp, 0);
1084 LOG(log_error, logtype_cnid, "error getting stat infotmation on database: %s", db_strerror(ret));
1088 *count = sp->bt_ndata;
1094 int dbif_copy_rootinfokey(DBD *srcdbd, DBD *destdbd)
1099 memset(&key, 0, sizeof(key));
1100 memset(&data, 0, sizeof(data));
1102 key.data = ROOTINFO_KEY;
1103 key.size = ROOTINFO_KEYLEN;
1105 if ((rc = dbif_get(srcdbd, DBIF_CNID, &key, &data, 0)) <= 0) {
1106 LOG(log_error, logtype_cnid, "dbif_copy_rootinfokey: Error getting rootinfo record");
1110 memset(&key, 0, sizeof(key));
1111 key.data = ROOTINFO_KEY;
1112 key.size = ROOTINFO_KEYLEN;
1114 if ((rc = dbif_put(destdbd, DBIF_CNID, &key, &data, 0))) {
1115 LOG(log_error, logtype_cnid, "dbif_copy_rootinfokey: Error writing rootinfo key");
1122 int dbif_dump(DBD *dbd, int dumpindexes)
1125 uint32_t max = 0, count = 0, cnid, type, did, lastid, version;
1129 DBT key = { 0 }, data = { 0 };
1130 DB *db = dbd->db_table[DBIF_CNID].db;
1131 char *typestring[2] = {"f", "d"};
1134 printf("CNID database dump:\n");
1136 rc = db->cursor(db, NULL, &cur, 0);
1138 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1142 cur->c_get(cur, &key, &data, DB_FIRST);
1144 /* Parse and print data */
1145 memcpy(&cnid, key.data, 4);
1150 /* Rootinfo node ? */
1152 memcpy(&stamp, (char *)data.data + CNID_DEV_OFS, sizeof(time_t));
1153 memcpy(&lastid, (char *)data.data + CNID_TYPE_OFS, CNID_TYPE_LEN);
1154 lastid = ntohl(lastid);
1155 memcpy(&version, (char *)data.data + CNID_DID_OFS, CNID_DID_LEN);
1156 version = ntohl(version);
1158 strftime(timebuf, sizeof(timebuf), "%b %d %Y %H:%M:%S", localtime(&stamp));
1159 printf("CNID db version: %u, dbd stamp: 0x%08x (%s), next free CNID: %u\n",
1160 version, (unsigned int)stamp, timebuf, lastid + 1);
1163 memcpy(&dev, (char *)data.data + CNID_DEV_OFS, 8);
1166 memcpy(&ino, (char *)data.data + CNID_INO_OFS, 8);
1169 memcpy(&type, (char *)data.data + CNID_TYPE_OFS, 4);
1172 memcpy(&did, (char *)data.data + CNID_DID_OFS, 4);
1176 printf("id: %10u, did: %10u, type: %s, dev: 0x%llx, ino: 0x%016llx, name: %s\n",
1177 cnid, did, typestring[type],
1178 (long long unsigned int)dev, (long long unsigned int)ino,
1179 (char *)data.data + CNID_NAME_OFS);
1183 rc = cur->c_get(cur, &key, &data, DB_NEXT);
1186 if (rc != DB_NOTFOUND) {
1187 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1191 rc = cur->c_close(cur);
1193 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
1196 printf("%u CNIDs in database. Max CNID: %u.\n", count, max);
1198 /* Dump indexes too ? */
1200 /* DBIF_IDX_DEVINO */
1201 printf("\ndev/inode index:\n");
1203 db = dbd->db_table[DBIF_IDX_DEVINO].db;
1204 rc = db->cursor(db, NULL, &cur, 0);
1206 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1210 cur->c_get(cur, &key, &data, DB_FIRST);
1212 /* Parse and print data */
1215 memcpy(&cnid, data.data, CNID_LEN);
1221 memcpy(&dev, key.data, CNID_DEV_LEN);
1224 memcpy(&ino, (char *)key.data + CNID_DEV_LEN, CNID_INO_LEN);
1227 printf("id: %10u <== dev: 0x%llx, ino: 0x%016llx\n",
1228 cnid, (unsigned long long int)dev, (unsigned long long int)ino);
1231 rc = cur->c_get(cur, &key, &data, DB_NEXT);
1233 if (rc != DB_NOTFOUND) {
1234 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1238 rc = cur->c_close(cur);
1240 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
1243 printf("%u items\n", count);
1245 /* Now dump DBIF_IDX_DIDNAME */
1246 printf("\ndid/name index:\n");
1248 db = dbd->db_table[DBIF_IDX_DIDNAME].db;
1249 rc = db->cursor(db, NULL, &cur, 0);
1251 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1255 cur->c_get(cur, &key, &data, DB_FIRST);
1257 /* Parse and print data */
1260 memcpy(&cnid, data.data, CNID_LEN);
1266 memcpy(&did, key.data, CNID_LEN);
1269 printf("id: %10u <== did: %10u, name: %s\n", cnid, did, (char *)key.data + CNID_LEN);
1272 rc = cur->c_get(cur, &key, &data, DB_NEXT);
1274 if (rc != DB_NOTFOUND) {
1275 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1279 rc = cur->c_close(cur);
1281 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
1284 printf("%u items\n", count);
1291 Iterates over dbd, returning cnids.
1292 Uses in-value of cnid to seek to that cnid, then gets next and return that in cnid.
1293 If close=1, close cursor.
1294 Return -1 on error, 0 on EOD (end-of-database), 1 if returning cnid.
1296 int dbif_idwalk(DBD *dbd, cnid_t *cnid, int close)
1302 static DBT key = { 0 }, data = { 0 };
1303 DB *db = dbd->db_table[DBIF_CNID].db;
1307 dbd->db_cur->close(dbd->db_cur);
1313 /* An dbif_del will have closed our cursor too */
1314 if ( ! dbd->db_cur ) {
1315 if ((rc = db->cursor(db, NULL, &dbd->db_cur, 0)) != 0) {
1316 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1319 flag = DB_SET_RANGE; /* This will seek to next cnid after the one just deleted */
1322 key.size = sizeof(cnid_t);
1326 if ((rc = dbd->db_cur->get(dbd->db_cur, &key, &data, flag)) == 0) {
1327 memcpy(cnid, key.data, sizeof(cnid_t));
1328 *cnid = ntohl(*cnid);
1332 if (rc != DB_NOTFOUND) {
1333 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1334 dbd->db_cur->close(dbd->db_cur);
1340 dbd->db_cur->close(dbd->db_cur);