2 * Copyright (C) Joerg Lenneis 2003
3 * Copyright (C) Frank Lahm 2009
4 * All Rights Reserved. See COPYING.
9 #endif /* HAVE_CONFIG_H */
15 #include <sys/types.h>
17 #include <sys/cdefs.h>
22 #include <atalk/logger.h>
23 #include <atalk/util.h>
29 #define DB_ERRLOGFILE "db_errlog"
32 * Get the db stamp which is the st_ctime of the file "cnid2.db" and store it in buffer
34 static int dbif_stamp(DBD *dbd, void *buffer, int size)
43 if ((cwd = open(".", O_RDONLY)) < 0) {
44 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
48 /* chdir to db_envhome */
49 if ((chdir(dbd->db_envhome)) != 0) {
50 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
54 if ((rc = stat(dbd->db_table[DBIF_CNID].name, &st)) < 0) {
55 LOG(log_error, logtype_cnid, "error stating database %s: %s", dbd->db_table[DBIF_CNID].name, db_strerror(errno));
59 LOG(log_maxdebug, logtype_cnid,"stamp: %s", asctime(localtime(&st.st_ctime)));
61 memset(buffer, 0, size);
62 memcpy(buffer, &st.st_ctime, sizeof(st.st_ctime));
64 if ((fchdir(cwd)) != 0) {
65 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
73 * Inititialize rootinfo key (which has CNID 0 as key)
75 * This also "stamps" the database, which means storing st.st_ctime of the
76 * "cnid2.db" file in the rootinfo data at the DEV offset
78 * @param dbd (rw) database handle
79 * @param version (r) database version number
81 * @returns -1 on error, 0 on success
83 static int dbif_init_rootinfo(DBD *dbd, int version)
87 char buf[ROOTINFO_DATALEN];
89 LOG(log_debug, logtype_cnid, "Setting CNID database version to %u", version);
94 memset(&key, 0, sizeof(key));
95 memset(&data, 0, sizeof(data));
96 key.data = ROOTINFO_KEY;
97 key.size = ROOTINFO_KEYLEN;
99 data.size = ROOTINFO_DATALEN;
101 memcpy(buf, ROOTINFO_DATA, ROOTINFO_DATALEN);
102 memcpy(buf + CNID_DID_OFS, &v, sizeof(v));
103 if (dbif_stamp(dbd, buf + CNID_DEV_OFS, CNID_DEV_LEN) < 0)
106 if (dbif_put(dbd, DBIF_CNID, &key, &data, 0) < 0)
108 if (dbif_txn_commit(dbd) != 1) {
109 LOG(log_error, logtype_cnid, "dbif_init_rootinfo: cant commit txn");
117 * Return CNID database version number
119 * Returns version in *version
121 * @returns -1 on error, 0 if theres no rootinfo key yet, 1 if *version is returned
123 static int dbif_getversion(DBD *dbd, uint32_t *version)
128 LOG(log_maxdebug, logtype_cnid, "dbif_getversion: reading version info");
131 memset(&key, 0, sizeof(key));
132 memset(&data, 0, sizeof(data));
133 key.data = ROOTINFO_KEY;
134 key.size = ROOTINFO_KEYLEN;
136 switch (dbif_get(dbd, DBIF_CNID, &key, &data, 0)) {
138 memcpy(version, (char *)data.data + CNID_DID_OFS, sizeof(uint32_t));
139 *version = ntohl(*version);
140 LOG(log_debug, logtype_cnid, "CNID database version %u", *version);
143 case 0: /* not found */
144 LOG(log_debug, logtype_cnid, "dbif_getversion: no version info found");
148 LOG(log_error, logtype_cnid, "dbif_getversion: database error");
157 * Set CNID database version number
159 * Initializes rootinfo key as neccessary
160 * @returns -1 on error, 0 on success
162 static int dbif_setversion(DBD *dbd, uint32_t version)
168 LOG(log_debug, logtype_cnid, "Setting CNID database version to %u", version);
173 memset(&key, 0, sizeof(key));
174 memset(&data, 0, sizeof(data));
175 key.data = ROOTINFO_KEY;
176 key.size = ROOTINFO_KEYLEN;
178 if ((ret = dbif_get(dbd, DBIF_CNID, &key, &data, 0)) == -1)
181 /* No rootinfo key yet, init it */
182 if (dbif_init_rootinfo(dbd, CNID_VERSION) != 0)
185 if (dbif_get(dbd, DBIF_CNID, &key, &data, 0) == -1)
188 memcpy((char *)data.data + CNID_DID_OFS, &v, sizeof(v));
189 data.size = ROOTINFO_DATALEN;
190 if (dbif_put(dbd, DBIF_CNID, &key, &data, 0) < 0)
197 * Upgrade CNID database versions, initialize rootinfo key as as necessary in dbif_setversion()
199 * For now this does nothing, as upgrading from ver. 0 to 1 is done in dbif_open
201 #define UNINTIALIZED_DB UINT32_MAX
202 static int dbif_upgrade(DBD *dbd)
204 uint32_t version = CNID_VERSION_UNINTIALIZED_DB;
206 if (dbif_getversion(dbd, &version) == -1)
208 if (version == CNID_VERSION_UNINTIALIZED_DB) {
209 version = CNID_VERSION;
210 if (dbif_setversion(dbd, CNID_VERSION) != 0)
215 * Do upgrade stuff ...
218 /* Write current version to database */
219 if (version != CNID_VERSION) {
220 if (dbif_setversion(dbd, CNID_VERSION) != 0)
224 LOG(log_debug, logtype_cnid, "Finished CNID database version upgrade check");
229 /* --------------- */
230 static int dbif_openlog(DBD *dbd)
235 if ( ! dbd->db_filename)
240 if ((cwd = open(".", O_RDONLY)) < 0) {
241 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
245 /* chdir to db_envhome */
246 if ((chdir(dbd->db_envhome)) != 0) {
247 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
252 if ((dbd->db_errlog = fopen(DB_ERRLOGFILE, "a")) == NULL)
253 LOG(log_warning, logtype_cnid, "error creating/opening DB errlogfile: %s", strerror(errno));
255 if (dbd->db_errlog != NULL) {
256 dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
257 dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
262 if ((fchdir(cwd)) != 0) {
263 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
271 /* --------------- */
272 static int dbif_logautorem(DBD *dbd)
276 char **logfiles = NULL;
279 if ( ! dbd->db_filename)
284 if ((cwd = open(".", O_RDONLY)) < 0) {
285 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
289 /* chdir to db_envhome */
290 if ((chdir(dbd->db_envhome)) != 0) {
291 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
296 if ((ret = dbd->db_env->log_archive(dbd->db_env, &logfiles, 0)) != 0) {
297 LOG(log_error, logtype_cnid, "error getting list of stale logfiles: %s",
299 dbd->db_env->close(dbd->db_env, 0);
305 if (logfiles != NULL) {
306 for (file = logfiles; *file != NULL; file++) {
307 if (unlink(*file) < 0)
308 LOG(log_warning, logtype_cnid, "Error removing stale logfile %s: %s", *file, strerror(errno));
315 if ((fchdir(cwd)) != 0) {
316 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
324 /* --------------- */
325 DBD *dbif_init(const char *envhome, const char *filename)
329 if ( NULL == (dbd = calloc(sizeof(DBD), 1)) )
332 /* filename == NULL means in memory db */
337 dbd->db_envhome = strdup(envhome);
338 if (NULL == dbd->db_envhome) {
343 dbd->db_filename = strdup(filename);
344 if (NULL == dbd->db_filename) {
345 free(dbd->db_envhome);
351 dbd->db_table[DBIF_CNID].name = "cnid2.db";
352 dbd->db_table[DBIF_IDX_DEVINO].name = "devino.db";
353 dbd->db_table[DBIF_IDX_DIDNAME].name = "didname.db";
354 dbd->db_table[DBIF_IDX_NAME].name = "name.db";
356 dbd->db_table[DBIF_CNID].type = DB_BTREE;
357 dbd->db_table[DBIF_IDX_DEVINO].type = DB_BTREE;
358 dbd->db_table[DBIF_IDX_DIDNAME].type = DB_BTREE;
359 dbd->db_table[DBIF_IDX_NAME].type = DB_BTREE;
361 dbd->db_table[DBIF_CNID].openflags = DB_CREATE;
362 dbd->db_table[DBIF_IDX_DEVINO].openflags = DB_CREATE;
363 dbd->db_table[DBIF_IDX_DIDNAME].openflags = DB_CREATE;
364 dbd->db_table[DBIF_IDX_NAME].openflags = DB_CREATE;
366 dbd->db_table[DBIF_IDX_NAME].flags = DB_DUPSORT;
372 We must open the db_env with an absolute pathname, as `dbd` keeps chdir'ing, which
373 breaks e.g. bdb logfile-rotation with relative pathnames.
374 But still we use relative paths with DB_ERRLOGFILE
375 in order to avoid creating absolute paths by copying. Both have no problem with
378 int dbif_env_open(DBD *dbd, struct db_param *dbp, uint32_t dbenv_oflags)
382 if ((ret = db_env_create(&dbd->db_env, 0))) {
383 LOG(log_error, logtype_cnid, "error creating DB environment: %s",
389 if ((dbif_openlog(dbd)) != 0)
392 if (dbenv_oflags & DB_RECOVER) {
394 LOG(log_debug, logtype_cnid, "Running recovery");
396 dbd->db_env->set_verbose(dbd->db_env, DB_VERB_RECOVERY, 1);
397 /* Open the database for recovery using DB_PRIVATE option which is faster */
398 if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags | DB_PRIVATE, 0))) {
399 LOG(log_error, logtype_cnid, "error opening DB environment: %s",
401 dbd->db_env->close(dbd->db_env, 0);
405 dbenv_oflags = (dbenv_oflags & ~DB_RECOVER);
407 if (dbd->db_errlog != NULL)
408 fflush(dbd->db_errlog);
410 if ((ret = dbd->db_env->close(dbd->db_env, 0))) {
411 LOG(log_error, logtype_cnid, "error closing DB environment after recovery: %s",
416 dbd->db_errlog = NULL;
418 if ((ret = db_env_create(&dbd->db_env, 0))) {
419 LOG(log_error, logtype_cnid, "error creating DB environment after recovery: %s",
425 if ((dbif_openlog(dbd)) != 0)
428 LOG(log_debug, logtype_cnid, "Finished recovery.");
431 if ((ret = dbd->db_env->set_cachesize(dbd->db_env, 0, 1024 * dbp->cachesize, 0))) {
432 LOG(log_error, logtype_cnid, "error setting DB environment cachesize to %i: %s",
433 dbp->cachesize, db_strerror(ret));
434 dbd->db_env->close(dbd->db_env, 0);
439 if ((ret = dbd->db_env->set_lk_max_locks(dbd->db_env, dbp->maxlocks))) {
440 LOG(log_error, logtype_cnid, "error setting DB environment maxlocks to %i: %s",
441 10000, db_strerror(ret));
442 dbd->db_env->close(dbd->db_env, 0);
447 if ((ret = dbd->db_env->set_lk_max_objects(dbd->db_env, dbp->maxlockobjs))) {
448 LOG(log_error, logtype_cnid, "error setting DB environment max lockobjects to %i: %s",
449 10000, db_strerror(ret));
450 dbd->db_env->close(dbd->db_env, 0);
455 if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags, 0))) {
456 LOG(log_error, logtype_cnid, "error opening DB environment after recovery: %s",
458 dbd->db_env->close(dbd->db_env, 0);
463 if ((ret = dbd->db_env->set_flags(dbd->db_env, DB_AUTO_COMMIT, 1))) {
464 LOG(log_error, logtype_cnid, "error setting DB_AUTO_COMMIT flag: %s",
466 dbd->db_env->close(dbd->db_env, 0);
471 if (dbp->logfile_autoremove) {
472 if ((dbif_logautorem(dbd)) != 0)
475 #if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 7)
476 if ((ret = dbd->db_env->log_set_config(dbd->db_env, DB_LOG_AUTO_REMOVE, 1))) {
477 LOG(log_error, logtype_cnid, "error setting DB_LOG_AUTO_REMOVE flag: %s",
479 dbd->db_env->close(dbd->db_env, 0);
484 if ((ret = dbd->db_env->set_flags(dbd->db_env, DB_LOG_AUTOREMOVE, 1))) {
485 LOG(log_error, logtype_cnid, "error setting DB_LOG_AUTOREMOVE flag: %s",
487 dbd->db_env->close(dbd->db_env, 0);
497 /* --------------- */
498 int dbif_open(DBD *dbd, struct db_param *dbp, int reindex)
505 /* Try to upgrade if it's a normal on-disk database */
506 if (dbd->db_envhome) {
508 if ((cwd = open(".", O_RDONLY)) < 0) {
509 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
513 /* chdir to db_envhome. makes it easier checking for old db files and creating db_errlog file */
514 if ((chdir(dbd->db_envhome)) != 0) {
515 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
519 if ((stat(dbd->db_filename, &st)) == 0) {
520 LOG(log_debug, logtype_cnid, "See if we can upgrade the CNID database...");
521 if ((ret = db_create(&upgrade_db, dbd->db_env, 0))) {
522 LOG(log_error, logtype_cnid, "error creating handle for database: %s", db_strerror(ret));
525 if ((ret = upgrade_db->upgrade(upgrade_db, dbd->db_filename, 0))) {
526 LOG(log_error, logtype_cnid, "error upgarding database: %s", db_strerror(ret));
529 if ((ret = upgrade_db->close(upgrade_db, 0))) {
530 LOG(log_error, logtype_cnid, "error closing database: %s", db_strerror(ret));
533 if ((ret = dbd->db_env->txn_checkpoint(dbd->db_env, 0, 0, DB_FORCE))) {
534 LOG(log_error, logtype_cnid, "error forcing checkpoint: %s", db_strerror(ret));
537 LOG(log_debug, logtype_cnid, "Finished BerkeleyBD upgrade check");
540 if ((fchdir(cwd)) != 0) {
541 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
546 /* Now open databases ... */
547 for (i = 0; i != DBIF_DB_CNT; i++) {
548 if ((ret = db_create(&dbd->db_table[i].db, dbd->db_env, 0))) {
549 LOG(log_error, logtype_cnid, "error creating handle for database %s: %s",
550 dbd->db_table[i].name, db_strerror(ret));
554 if (dbd->db_table[i].flags) {
555 if ((ret = dbd->db_table[i].db->set_flags(dbd->db_table[i].db,
556 dbd->db_table[i].flags))) {
557 LOG(log_error, logtype_cnid, "error setting flags for database %s: %s",
558 dbd->db_table[i].name, db_strerror(ret));
563 if ( ! dbd->db_env) { /* In memory db */
564 if ((ret = dbd->db_table[i].db->set_cachesize(dbd->db_table[i].db,
567 4)) /* split in 4 memory chunks */
569 LOG(log_error, logtype_cnid, "error setting cachesize %u KB for database %s: %s",
570 dbp->cachesize / 1024, dbd->db_table[i].name, db_strerror(ret));
575 if (dbd->db_table[i].db->open(dbd->db_table[i].db,
578 dbd->db_table[i].name,
579 dbd->db_table[i].type,
580 dbd->db_table[i].openflags,
582 LOG(log_error, logtype_cnid, "Cant open database");
586 if (reindex && i > 0) {
587 LOG(log_info, logtype_cnid, "Truncating CNID index.");
588 if ((ret = dbd->db_table[i].db->truncate(dbd->db_table[i].db, NULL, &count, 0))) {
589 LOG(log_error, logtype_cnid, "error truncating database %s: %s",
590 dbd->db_table[i].name, db_strerror(ret));
596 /* TODO: Implement CNID DB versioning info on new databases. */
598 /* Associate the secondary with the primary. */
600 LOG(log_info, logtype_cnid, "Reindexing did/name index...");
601 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[DBIF_CNID].db,
603 dbd->db_table[DBIF_IDX_DIDNAME].db,
605 (reindex) ? DB_CREATE : 0))
607 LOG(log_error, logtype_cnid, "Failed to associate didname database: %s",db_strerror(ret));
611 LOG(log_info, logtype_cnid, "... done.");
614 LOG(log_info, logtype_cnid, "Reindexing dev/ino index...");
615 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[0].db,
617 dbd->db_table[DBIF_IDX_DEVINO].db,
619 (reindex) ? DB_CREATE : 0))
621 LOG(log_error, logtype_cnid, "Failed to associate devino database: %s",db_strerror(ret));
625 LOG(log_info, logtype_cnid, "... done.");
628 LOG(log_info, logtype_cnid, "Reindexing name index...");
631 * Upgrading from version 0 to 1 requires adding the name index below which
632 * must be done by specifying the DB_CREATE flag
634 uint32_t version = CNID_VERSION;
635 if (dbd->db_envhome && !reindex) {
636 if (dbif_getversion(dbd, &version) == -1)
640 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[0].db,
642 dbd->db_table[DBIF_IDX_NAME].db,
646 ((CNID_VERSION == CNID_VERSION_1) && (version == CNID_VERSION_0)))
647 ? DB_CREATE : 0)) != 0) {
648 LOG(log_error, logtype_cnid, "Failed to associate name index: %s", db_strerror(ret));
652 LOG(log_info, logtype_cnid, "... done.");
654 if ((dbd->db_envhome) && ((ret = dbif_upgrade(dbd)) != 0)) {
655 LOG(log_error, logtype_cnid, "Error upgrading CNID database to version %d", CNID_VERSION);
662 /* ------------------------ */
663 static int dbif_closedb(DBD *dbd)
669 for (i = DBIF_DB_CNT -1; i >= 0; i--) {
670 if (dbd->db_table[i].db != NULL && (ret = dbd->db_table[i].db->close(dbd->db_table[i].db, 0))) {
671 LOG(log_error, logtype_cnid, "error closing database %s: %s", dbd->db_table[i].name, db_strerror(ret));
680 /* ------------------------ */
681 int dbif_close(DBD *dbd)
686 if (dbif_closedb(dbd))
689 if (dbd->db_env != NULL && (ret = dbd->db_env->close(dbd->db_env, 0))) {
690 LOG(log_error, logtype_cnid, "error closing DB environment: %s", db_strerror(ret));
693 if (dbd->db_errlog != NULL && fclose(dbd->db_errlog) == EOF) {
694 LOG(log_error, logtype_cnid, "error closing DB logfile: %s", strerror(errno));
698 free(dbd->db_filename);
708 In order to support silent database upgrades:
709 destroy env at cnid_dbd shutdown.
711 int dbif_env_remove(const char *path)
716 LOG(log_debug, logtype_cnid, "Reopening BerkeleyDB environment");
718 if (NULL == (dbd = dbif_init(path, "cnid2.db")))
721 /* Get db_env handle */
722 if ((ret = db_env_create(&dbd->db_env, 0))) {
723 LOG(log_error, logtype_cnid, "error creating DB environment: %s", db_strerror(ret));
728 if ((dbif_openlog(dbd)) != 0)
731 /* Open environment with recovery */
732 if ((ret = dbd->db_env->open(dbd->db_env,
734 DB_CREATE | DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_LOCK | DB_INIT_TXN | DB_RECOVER | DB_PRIVATE,
736 LOG(log_error, logtype_cnid, "error opening DB environment: %s",
738 dbd->db_env->close(dbd->db_env, 0);
743 if (dbd->db_errlog != NULL)
744 fflush(dbd->db_errlog);
746 /* Remove logfiles */
747 if ((ret = dbd->db_env->log_archive(dbd->db_env, NULL, DB_ARCH_REMOVE))) {
748 LOG(log_error, logtype_cnid, "error removing transaction logfiles: %s", db_strerror(ret));
752 if ((ret = dbd->db_env->close(dbd->db_env, 0))) {
753 LOG(log_error, logtype_cnid, "error closing DB environment after recovery: %s", db_strerror(ret));
758 LOG(log_debug, logtype_cnid, "BerkeleyDB environment recovery done.");
760 /* Get a new db_env handle and then remove environment */
761 if ((ret = db_env_create(&dbd->db_env, 0))) {
762 LOG(log_error, logtype_cnid, "error acquiring db_end handle: %s", db_strerror(ret));
766 if ((ret = dbd->db_env->remove(dbd->db_env, dbd->db_envhome, 0))) {
767 LOG(log_error, logtype_cnid, "error removing BerkeleyDB environment: %s", db_strerror(ret));
771 LOG(log_debug, logtype_cnid, "Removed BerkeleyDB environment.");
777 * The following three functions are wrappers for DB->get(), DB->put() and DB->del().
778 * All three return -1 on error. dbif_get()/dbif_del return 1 if the key was found and 0
779 * otherwise. dbif_put() returns 0 if key/val was successfully updated and 1 if
780 * the DB_NOOVERWRITE flag was specified and the key already exists.
782 * All return codes other than DB_NOTFOUND and DB_KEYEXIST from the DB->()
783 * functions are not expected and therefore error conditions.
786 int dbif_get(DBD *dbd, const int dbi, DBT *key, DBT *val, u_int32_t flags)
790 ret = dbd->db_table[dbi].db->get(dbd->db_table[dbi].db,
796 if (ret == DB_NOTFOUND)
799 LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
800 dbd->db_table[dbi].name, db_strerror(ret));
806 /* search by secondary return primary */
807 int dbif_pget(DBD *dbd, const int dbi, DBT *key, DBT *pkey, DBT *val, u_int32_t flags)
811 ret = dbd->db_table[dbi].db->pget(dbd->db_table[dbi].db,
818 if (ret == DB_NOTFOUND || ret == DB_SECONDARY_BAD) {
822 LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
823 dbd->db_table[dbi].name, db_strerror(ret));
829 /* -------------------------- */
830 int dbif_put(DBD *dbd, const int dbi, DBT *key, DBT *val, u_int32_t flags)
834 if (dbif_txn_begin(dbd) < 0) {
835 LOG(log_error, logtype_cnid, "error setting key/value in %s", dbd->db_table[dbi].name);
839 ret = dbd->db_table[dbi].db->put(dbd->db_table[dbi].db,
847 if ((flags & DB_NOOVERWRITE) && ret == DB_KEYEXIST) {
850 LOG(log_error, logtype_cnid, "error setting key/value in %s: %s",
851 dbd->db_table[dbi].name, db_strerror(ret));
858 int dbif_del(DBD *dbd, const int dbi, DBT *key, u_int32_t flags)
862 /* For cooperation with the dbd utility and its usage of a cursor */
864 dbd->db_cur->close(dbd->db_cur);
868 if (dbif_txn_begin(dbd) < 0) {
869 LOG(log_error, logtype_cnid, "error deleting key/value from %s", dbd->db_table[dbi].name);
873 ret = dbd->db_table[dbi].db->del(dbd->db_table[dbi].db,
878 if (ret == DB_NOTFOUND) {
879 LOG(log_info, logtype_cnid, "key not found");
883 LOG(log_error, logtype_cnid, "error deleting key/value from %s: %s",
884 dbd->db_table[dbi].name, db_strerror(ret));
891 * Search the database by name
893 * @param resbuf (w) buffer for search results CNIDs, maxsize is assumed to be
894 * DBD_MAX_SRCH_RSLTS * sizefof(cnid_t)
896 * @returns -1 on error, 0 when nothing found, else the number of matches
898 int dbif_search(DBD *dbd, DBT *key, char *resbuf)
904 char *cnids = resbuf;
906 char *namebkp = key->data;
907 int namelenbkp = key->size;
909 memset(&pkey, 0, sizeof(DBT));
910 memset(&data, 0, sizeof(DBT));
913 ret = dbd->db_table[DBIF_IDX_NAME].db->cursor(dbd->db_table[DBIF_IDX_NAME].db,
918 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(ret));
923 ret = cursorp->pget(cursorp, key, &pkey, &data, DB_SET_RANGE);
924 while (count < DBD_MAX_SRCH_RSLTS && ret != DB_NOTFOUND) {
925 if (!((namelenbkp <= key->size) && (strncmp(namebkp, key->data, namelenbkp) == 0)))
928 memcpy(cnids, pkey.data, sizeof(cnid_t));
929 memcpy(&cnid, pkey.data, sizeof(cnid_t));
930 cnids += sizeof(cnid_t);
931 LOG(log_debug, logtype_cnid, "match: CNID %" PRIu32, ntohl(cnid));
933 ret = cursorp->pget(cursorp, key, &pkey, &data, DB_NEXT);
940 cursorp->close(cursorp);
944 int dbif_txn_begin(DBD *dbd)
948 /* If we already have an active txn, just return */
952 /* If our DBD has no env, just return (-> in memory db) */
953 if (dbd->db_env == NULL)
956 ret = dbd->db_env->txn_begin(dbd->db_env, NULL, &dbd->db_txn, 0);
959 LOG(log_error, logtype_cnid, "error starting transaction: %s", db_strerror(ret));
965 int dbif_txn_commit(DBD *dbd)
972 /* If our DBD has no env, just return (-> in memory db) */
973 if (dbd->db_env == NULL)
976 ret = dbd->db_txn->commit(dbd->db_txn, 0);
980 LOG(log_error, logtype_cnid, "error committing transaction: %s", db_strerror(ret));
986 int dbif_txn_abort(DBD *dbd)
993 /* If our DBD has no env, just return (-> in memory db) */
994 if (dbd->db_env == NULL)
997 ret = dbd->db_txn->abort(dbd->db_txn);
1001 LOG(log_error, logtype_cnid, "error aborting transaction: %s", db_strerror(ret));
1008 ret = 1 -> commit txn
1009 ret = 0 -> abort txn -> exit!
1010 anything else -> exit!
1012 void dbif_txn_close(DBD *dbd, int ret)
1015 if (dbif_txn_abort(dbd) < 0) {
1016 LOG( log_error, logtype_cnid, "Fatal error aborting transaction. Exiting!");
1019 } else if (ret == 1) {
1020 ret = dbif_txn_commit(dbd);
1022 LOG( log_error, logtype_cnid, "Fatal error committing transaction. Exiting!");
1029 int dbif_txn_checkpoint(DBD *dbd, u_int32_t kbyte, u_int32_t min, u_int32_t flags)
1032 ret = dbd->db_env->txn_checkpoint(dbd->db_env, kbyte, min, flags);
1034 LOG(log_error, logtype_cnid, "error checkpointing transaction susystem: %s", db_strerror(ret));
1040 int dbif_count(DBD *dbd, const int dbi, u_int32_t *count)
1044 DB *db = dbd->db_table[dbi].db;
1046 ret = db->stat(db, NULL, &sp, 0);
1049 LOG(log_error, logtype_cnid, "error getting stat infotmation on database: %s", db_strerror(ret));
1053 *count = sp->bt_ndata;
1059 int dbif_copy_rootinfokey(DBD *srcdbd, DBD *destdbd)
1064 memset(&key, 0, sizeof(key));
1065 memset(&data, 0, sizeof(data));
1067 key.data = ROOTINFO_KEY;
1068 key.size = ROOTINFO_KEYLEN;
1070 if ((rc = dbif_get(srcdbd, DBIF_CNID, &key, &data, 0)) <= 0) {
1071 LOG(log_error, logtype_cnid, "dbif_copy_rootinfokey: Error getting rootinfo record");
1075 memset(&key, 0, sizeof(key));
1076 key.data = ROOTINFO_KEY;
1077 key.size = ROOTINFO_KEYLEN;
1079 if ((rc = dbif_put(destdbd, DBIF_CNID, &key, &data, 0))) {
1080 LOG(log_error, logtype_cnid, "dbif_copy_rootinfokey: Error writing rootinfo key");
1087 int dbif_dump(DBD *dbd, int dumpindexes)
1090 uint32_t max = 0, count = 0, cnid, type, did, lastid, version;
1094 DBT key = { 0 }, data = { 0 };
1095 DB *db = dbd->db_table[DBIF_CNID].db;
1096 char *typestring[2] = {"f", "d"};
1099 printf("CNID database dump:\n");
1101 rc = db->cursor(db, NULL, &cur, 0);
1103 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1107 cur->c_get(cur, &key, &data, DB_FIRST);
1109 /* Parse and print data */
1110 memcpy(&cnid, key.data, 4);
1115 /* Rootinfo node ? */
1117 memcpy(&stamp, (char *)data.data + CNID_DEV_OFS, sizeof(time_t));
1118 memcpy(&lastid, (char *)data.data + CNID_TYPE_OFS, CNID_TYPE_LEN);
1119 lastid = ntohl(lastid);
1120 memcpy(&version, (char *)data.data + CNID_DID_OFS, CNID_DID_LEN);
1121 version = ntohl(version);
1123 strftime(timebuf, sizeof(timebuf), "%b %d %Y %H:%M:%S", localtime(&stamp));
1124 printf("CNID db version: %u, dbd stamp: 0x%08x (%s), next free CNID: %u\n",
1125 version, (unsigned int)stamp, timebuf, lastid + 1);
1128 memcpy(&dev, (char *)data.data + CNID_DEV_OFS, 8);
1131 memcpy(&ino, (char *)data.data + CNID_INO_OFS, 8);
1134 memcpy(&type, (char *)data.data + CNID_TYPE_OFS, 4);
1137 memcpy(&did, (char *)data.data + CNID_DID_OFS, 4);
1141 printf("id: %10u, did: %10u, type: %s, dev: 0x%llx, ino: 0x%016llx, name: %s\n",
1142 cnid, did, typestring[type],
1143 (long long unsigned int)dev, (long long unsigned int)ino,
1144 (char *)data.data + CNID_NAME_OFS);
1148 rc = cur->c_get(cur, &key, &data, DB_NEXT);
1151 if (rc != DB_NOTFOUND) {
1152 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1156 rc = cur->c_close(cur);
1158 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
1161 printf("%u CNIDs in database. Max CNID: %u.\n", count, max);
1163 /* Dump indexes too ? */
1165 /* DBIF_IDX_DEVINO */
1166 printf("\ndev/inode index:\n");
1168 db = dbd->db_table[DBIF_IDX_DEVINO].db;
1169 rc = db->cursor(db, NULL, &cur, 0);
1171 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1175 cur->c_get(cur, &key, &data, DB_FIRST);
1177 /* Parse and print data */
1180 memcpy(&cnid, data.data, CNID_LEN);
1186 memcpy(&dev, key.data, CNID_DEV_LEN);
1189 memcpy(&ino, (char *)key.data + CNID_DEV_LEN, CNID_INO_LEN);
1192 printf("id: %10u <== dev: 0x%llx, ino: 0x%016llx\n",
1193 cnid, (unsigned long long int)dev, (unsigned long long int)ino);
1196 rc = cur->c_get(cur, &key, &data, DB_NEXT);
1198 if (rc != DB_NOTFOUND) {
1199 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1203 rc = cur->c_close(cur);
1205 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
1208 printf("%u items\n", count);
1210 /* Now dump DBIF_IDX_DIDNAME */
1211 printf("\ndid/name index:\n");
1213 db = dbd->db_table[DBIF_IDX_DIDNAME].db;
1214 rc = db->cursor(db, NULL, &cur, 0);
1216 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1220 cur->c_get(cur, &key, &data, DB_FIRST);
1222 /* Parse and print data */
1225 memcpy(&cnid, data.data, CNID_LEN);
1231 memcpy(&did, key.data, CNID_LEN);
1234 printf("id: %10u <== did: %10u, name: %s\n", cnid, did, (char *)key.data + CNID_LEN);
1237 rc = cur->c_get(cur, &key, &data, DB_NEXT);
1239 if (rc != DB_NOTFOUND) {
1240 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1244 rc = cur->c_close(cur);
1246 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
1249 printf("%u items\n", count);
1256 Iterates over dbd, returning cnids.
1257 Uses in-value of cnid to seek to that cnid, then gets next and return that in cnid.
1258 If close=1, close cursor.
1259 Return -1 on error, 0 on EOD (end-of-database), 1 if returning cnid.
1261 int dbif_idwalk(DBD *dbd, cnid_t *cnid, int close)
1267 static DBT key = { 0 }, data = { 0 };
1268 DB *db = dbd->db_table[DBIF_CNID].db;
1272 dbd->db_cur->close(dbd->db_cur);
1278 /* An dbif_del will have closed our cursor too */
1279 if ( ! dbd->db_cur ) {
1280 if ((rc = db->cursor(db, NULL, &dbd->db_cur, 0)) != 0) {
1281 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1284 flag = DB_SET_RANGE; /* This will seek to next cnid after the one just deleted */
1287 key.size = sizeof(cnid_t);
1291 if ((rc = dbd->db_cur->get(dbd->db_cur, &key, &data, flag)) == 0) {
1292 memcpy(cnid, key.data, sizeof(cnid_t));
1293 *cnid = ntohl(*cnid);
1297 if (rc != DB_NOTFOUND) {
1298 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1299 dbd->db_cur->close(dbd->db_cur);
1305 dbd->db_cur->close(dbd->db_cur);