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>
21 #include <atalk/logger.h>
22 #include <atalk/util.h>
28 #define DB_ERRLOGFILE "db_errlog"
31 * Get the db stamp which is the st_ctime of the file "cnid2.db" and store it in buffer
33 static int dbif_stamp(DBD *dbd, void *buffer, int size)
42 if ((cwd = open(".", O_RDONLY)) < 0) {
43 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
47 /* chdir to db_envhome */
48 if ((chdir(dbd->db_envhome)) != 0) {
49 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
53 if ((rc = stat(dbd->db_table[DBIF_CNID].name, &st)) < 0) {
54 LOG(log_error, logtype_cnid, "error stating database %s: %s", dbd->db_table[DBIF_CNID].name, db_strerror(errno));
58 LOG(log_maxdebug, logtype_cnid,"stamp: %s", asctime(localtime(&st.st_ctime)));
60 memset(buffer, 0, size);
61 memcpy(buffer, &st.st_ctime, sizeof(st.st_ctime));
63 if ((fchdir(cwd)) != 0) {
64 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
72 * Inititialize rootinfo key (which has CNID 0 as key)
74 * This also "stamps" the database, which means storing st.st_ctime of the
75 * "cnid2.db" file in the rootinfo data at the DEV offset
77 * @param dbd (rw) database handle
78 * @param version (r) database version number
80 * @returns -1 on error, 0 on success
82 static int dbif_init_rootinfo(DBD *dbd, int version)
86 char buf[ROOTINFO_DATALEN];
88 LOG(log_debug, logtype_cnid, "Setting CNID database version to %u", version);
93 memset(&key, 0, sizeof(key));
94 memset(&data, 0, sizeof(data));
95 key.data = ROOTINFO_KEY;
96 key.size = ROOTINFO_KEYLEN;
98 data.size = ROOTINFO_DATALEN;
100 memcpy(buf, ROOTINFO_DATA, ROOTINFO_DATALEN);
101 memcpy(buf + CNID_DID_OFS, &v, sizeof(v));
102 if (dbif_stamp(dbd, buf + CNID_DEV_OFS, CNID_DEV_LEN) < 0)
105 if (dbif_put(dbd, DBIF_CNID, &key, &data, 0) < 0)
107 if (dbif_txn_commit(dbd) != 1) {
108 LOG(log_error, logtype_cnid, "dbif_init_rootinfo: cant commit txn");
116 * Return CNID database version number
118 * Returns version in *version
120 * @returns -1 on error, 0 if theres no rootinfo key yet, 1 if *version is returned
122 static int dbif_getversion(DBD *dbd, uint32_t *version)
127 LOG(log_maxdebug, logtype_cnid, "dbif_getversion: reading version info");
130 memset(&key, 0, sizeof(key));
131 memset(&data, 0, sizeof(data));
132 key.data = ROOTINFO_KEY;
133 key.size = ROOTINFO_KEYLEN;
135 switch (dbif_get(dbd, DBIF_CNID, &key, &data, 0)) {
137 memcpy(version, (char *)data.data + CNID_DID_OFS, sizeof(uint32_t));
138 *version = ntohl(*version);
139 LOG(log_debug, logtype_cnid, "CNID database version %u", *version);
142 case 0: /* not found */
143 LOG(log_debug, logtype_cnid, "dbif_getversion: no version info found");
147 LOG(log_error, logtype_cnid, "dbif_getversion: database error");
156 * Set CNID database version number
158 * Initializes rootinfo key as neccessary
159 * @returns -1 on error, 0 on success
161 static int dbif_setversion(DBD *dbd, uint32_t version)
167 LOG(log_debug, logtype_cnid, "Setting CNID database version to %u", version);
172 memset(&key, 0, sizeof(key));
173 memset(&data, 0, sizeof(data));
174 key.data = ROOTINFO_KEY;
175 key.size = ROOTINFO_KEYLEN;
177 if ((ret = dbif_get(dbd, DBIF_CNID, &key, &data, 0)) == -1)
180 /* No rootinfo key yet, init it */
181 if (dbif_init_rootinfo(dbd, CNID_VERSION) != 0)
184 if (dbif_get(dbd, DBIF_CNID, &key, &data, 0) == -1)
187 memcpy((char *)data.data + CNID_DID_OFS, &v, sizeof(v));
188 data.size = ROOTINFO_DATALEN;
189 if (dbif_put(dbd, DBIF_CNID, &key, &data, 0) < 0)
196 * Upgrade CNID database versions, initialize rootinfo key as as necessary in dbif_setversion()
198 * For now this does nothing, as upgrading from ver. 0 to 1 is done in dbif_open
200 #define UNINTIALIZED_DB UINT32_MAX
201 static int dbif_upgrade(DBD *dbd)
203 uint32_t version = CNID_VERSION_UNINTIALIZED_DB;
205 if (dbif_getversion(dbd, &version) == -1)
207 if (version == CNID_VERSION_UNINTIALIZED_DB) {
208 version = CNID_VERSION;
209 if (dbif_setversion(dbd, CNID_VERSION) != 0)
214 * Do upgrade stuff ...
217 /* Write current version to database */
218 if (version != CNID_VERSION) {
219 if (dbif_setversion(dbd, CNID_VERSION) != 0)
223 LOG(log_debug, logtype_cnid, "Finished CNID database version upgrade check");
228 /* --------------- */
229 static int dbif_openlog(DBD *dbd)
234 if ( ! dbd->db_filename)
239 if ((cwd = open(".", O_RDONLY)) < 0) {
240 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
244 /* chdir to db_envhome */
245 if ((chdir(dbd->db_envhome)) != 0) {
246 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
251 if ((dbd->db_errlog = fopen(DB_ERRLOGFILE, "a")) == NULL)
252 LOG(log_warning, logtype_cnid, "error creating/opening DB errlogfile: %s", strerror(errno));
254 if (dbd->db_errlog != NULL) {
255 dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
256 dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
261 if ((fchdir(cwd)) != 0) {
262 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
270 /* --------------- */
271 static int dbif_logautorem(DBD *dbd)
275 char **logfiles = NULL;
278 if ( ! dbd->db_filename)
283 if ((cwd = open(".", O_RDONLY)) < 0) {
284 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
288 /* chdir to db_envhome */
289 if ((chdir(dbd->db_envhome)) != 0) {
290 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
295 if ((ret = dbd->db_env->log_archive(dbd->db_env, &logfiles, 0)) != 0) {
296 LOG(log_error, logtype_cnid, "error getting list of stale logfiles: %s",
298 dbd->db_env->close(dbd->db_env, 0);
304 if (logfiles != NULL) {
305 for (file = logfiles; *file != NULL; file++) {
306 if (unlink(*file) < 0)
307 LOG(log_warning, logtype_cnid, "Error removing stale logfile %s: %s", *file, strerror(errno));
314 if ((fchdir(cwd)) != 0) {
315 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
323 /* --------------- */
324 DBD *dbif_init(const char *envhome, const char *filename)
328 if ( NULL == (dbd = calloc(sizeof(DBD), 1)) )
331 /* filename == NULL means in memory db */
336 dbd->db_envhome = strdup(envhome);
337 if (NULL == dbd->db_envhome) {
342 dbd->db_filename = strdup(filename);
343 if (NULL == dbd->db_filename) {
344 free(dbd->db_envhome);
350 dbd->db_table[DBIF_CNID].name = "cnid2.db";
351 dbd->db_table[DBIF_IDX_DEVINO].name = "devino.db";
352 dbd->db_table[DBIF_IDX_DIDNAME].name = "didname.db";
353 dbd->db_table[DBIF_IDX_NAME].name = "name.db";
355 dbd->db_table[DBIF_CNID].type = DB_BTREE;
356 dbd->db_table[DBIF_IDX_DEVINO].type = DB_BTREE;
357 dbd->db_table[DBIF_IDX_DIDNAME].type = DB_BTREE;
358 dbd->db_table[DBIF_IDX_NAME].type = DB_BTREE;
360 dbd->db_table[DBIF_CNID].openflags = DB_CREATE;
361 dbd->db_table[DBIF_IDX_DEVINO].openflags = DB_CREATE;
362 dbd->db_table[DBIF_IDX_DIDNAME].openflags = DB_CREATE;
363 dbd->db_table[DBIF_IDX_NAME].openflags = DB_CREATE;
365 dbd->db_table[DBIF_IDX_NAME].flags = DB_DUPSORT;
371 We must open the db_env with an absolute pathname, as `dbd` keeps chdir'ing, which
372 breaks e.g. bdb logfile-rotation with relative pathnames.
373 But still we use relative paths with DB_ERRLOGFILE
374 in order to avoid creating absolute paths by copying. Both have no problem with
377 int dbif_env_open(DBD *dbd, struct db_param *dbp, uint32_t dbenv_oflags)
381 if ((ret = db_env_create(&dbd->db_env, 0))) {
382 LOG(log_error, logtype_cnid, "error creating DB environment: %s",
388 if ((dbif_openlog(dbd)) != 0)
391 if (dbenv_oflags & DB_RECOVER) {
393 LOG(log_debug, logtype_cnid, "Running recovery");
395 dbd->db_env->set_verbose(dbd->db_env, DB_VERB_RECOVERY, 1);
396 /* Open the database for recovery using DB_PRIVATE option which is faster */
397 if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags | DB_PRIVATE, 0))) {
398 LOG(log_error, logtype_cnid, "error opening DB environment: %s",
400 dbd->db_env->close(dbd->db_env, 0);
404 dbenv_oflags = (dbenv_oflags & ~DB_RECOVER);
406 if (dbd->db_errlog != NULL)
407 fflush(dbd->db_errlog);
409 if ((ret = dbd->db_env->close(dbd->db_env, 0))) {
410 LOG(log_error, logtype_cnid, "error closing DB environment after recovery: %s",
415 dbd->db_errlog = NULL;
417 if ((ret = db_env_create(&dbd->db_env, 0))) {
418 LOG(log_error, logtype_cnid, "error creating DB environment after recovery: %s",
424 if ((dbif_openlog(dbd)) != 0)
427 LOG(log_debug, logtype_cnid, "Finished recovery.");
430 if ((ret = dbd->db_env->set_cachesize(dbd->db_env, 0, 1024 * dbp->cachesize, 0))) {
431 LOG(log_error, logtype_cnid, "error setting DB environment cachesize to %i: %s",
432 dbp->cachesize, db_strerror(ret));
433 dbd->db_env->close(dbd->db_env, 0);
438 if ((ret = dbd->db_env->set_lk_max_locks(dbd->db_env, dbp->maxlocks))) {
439 LOG(log_error, logtype_cnid, "error setting DB environment maxlocks to %i: %s",
440 10000, db_strerror(ret));
441 dbd->db_env->close(dbd->db_env, 0);
446 if ((ret = dbd->db_env->set_lk_max_objects(dbd->db_env, dbp->maxlockobjs))) {
447 LOG(log_error, logtype_cnid, "error setting DB environment max lockobjects to %i: %s",
448 10000, db_strerror(ret));
449 dbd->db_env->close(dbd->db_env, 0);
454 if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags, 0))) {
455 LOG(log_error, logtype_cnid, "error opening DB environment after recovery: %s",
457 dbd->db_env->close(dbd->db_env, 0);
462 if ((ret = dbd->db_env->set_flags(dbd->db_env, DB_AUTO_COMMIT, 1))) {
463 LOG(log_error, logtype_cnid, "error setting DB_AUTO_COMMIT flag: %s",
465 dbd->db_env->close(dbd->db_env, 0);
470 if (dbp->logfile_autoremove) {
471 if ((dbif_logautorem(dbd)) != 0)
474 #if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 7)
475 if ((ret = dbd->db_env->log_set_config(dbd->db_env, DB_LOG_AUTO_REMOVE, 1))) {
476 LOG(log_error, logtype_cnid, "error setting DB_LOG_AUTO_REMOVE flag: %s",
478 dbd->db_env->close(dbd->db_env, 0);
483 if ((ret = dbd->db_env->set_flags(dbd->db_env, DB_LOG_AUTOREMOVE, 1))) {
484 LOG(log_error, logtype_cnid, "error setting DB_LOG_AUTOREMOVE flag: %s",
486 dbd->db_env->close(dbd->db_env, 0);
496 /* --------------- */
497 int dbif_open(DBD *dbd, struct db_param *dbp, int reindex)
504 /* Try to upgrade if it's a normal on-disk database */
505 if (dbd->db_envhome) {
507 if ((cwd = open(".", O_RDONLY)) < 0) {
508 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
512 /* chdir to db_envhome. makes it easier checking for old db files and creating db_errlog file */
513 if ((chdir(dbd->db_envhome)) != 0) {
514 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
518 if ((stat(dbd->db_filename, &st)) == 0) {
519 LOG(log_debug, logtype_cnid, "See if we can upgrade the CNID database...");
520 if ((ret = db_create(&upgrade_db, dbd->db_env, 0))) {
521 LOG(log_error, logtype_cnid, "error creating handle for database: %s", db_strerror(ret));
524 if ((ret = upgrade_db->upgrade(upgrade_db, dbd->db_filename, 0))) {
525 LOG(log_error, logtype_cnid, "error upgarding database: %s", db_strerror(ret));
528 if ((ret = upgrade_db->close(upgrade_db, 0))) {
529 LOG(log_error, logtype_cnid, "error closing database: %s", db_strerror(ret));
532 if ((ret = dbd->db_env->txn_checkpoint(dbd->db_env, 0, 0, DB_FORCE))) {
533 LOG(log_error, logtype_cnid, "error forcing checkpoint: %s", db_strerror(ret));
536 LOG(log_debug, logtype_cnid, "Finished BerkeleyBD upgrade check");
539 if ((fchdir(cwd)) != 0) {
540 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
545 /* Now open databases ... */
546 for (i = 0; i != DBIF_DB_CNT; i++) {
547 if ((ret = db_create(&dbd->db_table[i].db, dbd->db_env, 0))) {
548 LOG(log_error, logtype_cnid, "error creating handle for database %s: %s",
549 dbd->db_table[i].name, db_strerror(ret));
553 if (dbd->db_table[i].flags) {
554 if ((ret = dbd->db_table[i].db->set_flags(dbd->db_table[i].db,
555 dbd->db_table[i].flags))) {
556 LOG(log_error, logtype_cnid, "error setting flags for database %s: %s",
557 dbd->db_table[i].name, db_strerror(ret));
562 if ( ! dbd->db_env) { /* In memory db */
563 if ((ret = dbd->db_table[i].db->set_cachesize(dbd->db_table[i].db,
566 4)) /* split in 4 memory chunks */
568 LOG(log_error, logtype_cnid, "error setting cachesize %u KB for database %s: %s",
569 dbp->cachesize / 1024, dbd->db_table[i].name, db_strerror(ret));
574 if (dbd->db_table[i].db->open(dbd->db_table[i].db,
577 dbd->db_table[i].name,
578 dbd->db_table[i].type,
579 dbd->db_table[i].openflags,
581 LOG(log_error, logtype_cnid, "Cant open database");
585 if (reindex && i > 0) {
586 LOG(log_info, logtype_cnid, "Truncating CNID index.");
587 if ((ret = dbd->db_table[i].db->truncate(dbd->db_table[i].db, NULL, &count, 0))) {
588 LOG(log_error, logtype_cnid, "error truncating database %s: %s",
589 dbd->db_table[i].name, db_strerror(ret));
595 /* TODO: Implement CNID DB versioning info on new databases. */
597 /* Associate the secondary with the primary. */
599 LOG(log_info, logtype_cnid, "Reindexing did/name index...");
600 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[DBIF_CNID].db,
602 dbd->db_table[DBIF_IDX_DIDNAME].db,
604 (reindex) ? DB_CREATE : 0))
606 LOG(log_error, logtype_cnid, "Failed to associate didname database: %s",db_strerror(ret));
610 LOG(log_info, logtype_cnid, "... done.");
613 LOG(log_info, logtype_cnid, "Reindexing dev/ino index...");
614 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[0].db,
616 dbd->db_table[DBIF_IDX_DEVINO].db,
618 (reindex) ? DB_CREATE : 0))
620 LOG(log_error, logtype_cnid, "Failed to associate devino database: %s",db_strerror(ret));
624 LOG(log_info, logtype_cnid, "... done.");
627 LOG(log_info, logtype_cnid, "Reindexing name index...");
630 * Upgrading from version 0 to 1 requires adding the name index below which
631 * must be done by specifying the DB_CREATE flag
633 uint32_t version = CNID_VERSION;
634 if (dbd->db_envhome && !reindex) {
635 if (dbif_getversion(dbd, &version) == -1)
639 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[0].db,
641 dbd->db_table[DBIF_IDX_NAME].db,
645 ((CNID_VERSION == CNID_VERSION_1) && (version == CNID_VERSION_0)))
646 ? DB_CREATE : 0)) != 0) {
647 LOG(log_error, logtype_cnid, "Failed to associate name index: %s", db_strerror(ret));
651 LOG(log_info, logtype_cnid, "... done.");
653 if ((dbd->db_envhome) && ((ret = dbif_upgrade(dbd)) != 0)) {
654 LOG(log_error, logtype_cnid, "Error upgrading CNID database to version %d", CNID_VERSION);
661 /* ------------------------ */
662 static int dbif_closedb(DBD *dbd)
668 for (i = DBIF_DB_CNT -1; i >= 0; i--) {
669 if (dbd->db_table[i].db != NULL && (ret = dbd->db_table[i].db->close(dbd->db_table[i].db, 0))) {
670 LOG(log_error, logtype_cnid, "error closing database %s: %s", dbd->db_table[i].name, db_strerror(ret));
679 /* ------------------------ */
680 int dbif_close(DBD *dbd)
685 if (dbif_closedb(dbd))
688 if (dbd->db_env != NULL && (ret = dbd->db_env->close(dbd->db_env, 0))) {
689 LOG(log_error, logtype_cnid, "error closing DB environment: %s", db_strerror(ret));
692 if (dbd->db_errlog != NULL && fclose(dbd->db_errlog) == EOF) {
693 LOG(log_error, logtype_cnid, "error closing DB logfile: %s", strerror(errno));
697 free(dbd->db_filename);
707 In order to support silent database upgrades:
708 destroy env at cnid_dbd shutdown.
710 int dbif_env_remove(const char *path)
715 LOG(log_debug, logtype_cnid, "Reopening BerkeleyDB environment");
717 if (NULL == (dbd = dbif_init(path, "cnid2.db")))
720 /* Get db_env handle */
721 if ((ret = db_env_create(&dbd->db_env, 0))) {
722 LOG(log_error, logtype_cnid, "error creating DB environment: %s", db_strerror(ret));
727 if ((dbif_openlog(dbd)) != 0)
730 /* Open environment with recovery */
731 if ((ret = dbd->db_env->open(dbd->db_env,
733 DB_CREATE | DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_LOCK | DB_INIT_TXN | DB_RECOVER | DB_PRIVATE,
735 LOG(log_error, logtype_cnid, "error opening DB environment: %s",
737 dbd->db_env->close(dbd->db_env, 0);
742 if (dbd->db_errlog != NULL)
743 fflush(dbd->db_errlog);
745 /* Remove logfiles */
746 if ((ret = dbd->db_env->log_archive(dbd->db_env, NULL, DB_ARCH_REMOVE))) {
747 LOG(log_error, logtype_cnid, "error removing transaction logfiles: %s", db_strerror(ret));
751 if ((ret = dbd->db_env->close(dbd->db_env, 0))) {
752 LOG(log_error, logtype_cnid, "error closing DB environment after recovery: %s", db_strerror(ret));
757 LOG(log_debug, logtype_cnid, "BerkeleyDB environment recovery done.");
759 /* Get a new db_env handle and then remove environment */
760 if ((ret = db_env_create(&dbd->db_env, 0))) {
761 LOG(log_error, logtype_cnid, "error acquiring db_end handle: %s", db_strerror(ret));
765 if ((ret = dbd->db_env->remove(dbd->db_env, dbd->db_envhome, 0))) {
766 LOG(log_error, logtype_cnid, "error removing BerkeleyDB environment: %s", db_strerror(ret));
770 LOG(log_debug, logtype_cnid, "Removed BerkeleyDB environment.");
776 * The following three functions are wrappers for DB->get(), DB->put() and DB->del().
777 * All three return -1 on error. dbif_get()/dbif_del return 1 if the key was found and 0
778 * otherwise. dbif_put() returns 0 if key/val was successfully updated and 1 if
779 * the DB_NOOVERWRITE flag was specified and the key already exists.
781 * All return codes other than DB_NOTFOUND and DB_KEYEXIST from the DB->()
782 * functions are not expected and therefore error conditions.
785 int dbif_get(DBD *dbd, const int dbi, DBT *key, DBT *val, u_int32_t flags)
789 ret = dbd->db_table[dbi].db->get(dbd->db_table[dbi].db,
795 if (ret == DB_NOTFOUND)
798 LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
799 dbd->db_table[dbi].name, db_strerror(ret));
805 /* search by secondary return primary */
806 int dbif_pget(DBD *dbd, const int dbi, DBT *key, DBT *pkey, DBT *val, u_int32_t flags)
810 ret = dbd->db_table[dbi].db->pget(dbd->db_table[dbi].db,
817 if (ret == DB_NOTFOUND || ret == DB_SECONDARY_BAD) {
821 LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
822 dbd->db_table[dbi].name, db_strerror(ret));
828 /* -------------------------- */
829 int dbif_put(DBD *dbd, const int dbi, DBT *key, DBT *val, u_int32_t flags)
833 if (dbif_txn_begin(dbd) < 0) {
834 LOG(log_error, logtype_cnid, "error setting key/value in %s", dbd->db_table[dbi].name);
838 ret = dbd->db_table[dbi].db->put(dbd->db_table[dbi].db,
846 if ((flags & DB_NOOVERWRITE) && ret == DB_KEYEXIST) {
849 LOG(log_error, logtype_cnid, "error setting key/value in %s: %s",
850 dbd->db_table[dbi].name, db_strerror(ret));
857 int dbif_del(DBD *dbd, const int dbi, DBT *key, u_int32_t flags)
861 /* For cooperation with the dbd utility and its usage of a cursor */
863 dbd->db_cur->close(dbd->db_cur);
867 if (dbif_txn_begin(dbd) < 0) {
868 LOG(log_error, logtype_cnid, "error deleting key/value from %s", dbd->db_table[dbi].name);
872 ret = dbd->db_table[dbi].db->del(dbd->db_table[dbi].db,
877 if (ret == DB_NOTFOUND) {
878 LOG(log_info, logtype_cnid, "key not found");
882 LOG(log_error, logtype_cnid, "error deleting key/value from %s: %s",
883 dbd->db_table[dbi].name, db_strerror(ret));
890 * Search the database by name
892 * @param resbuf (w) buffer for search results CNIDs, maxsize is assumed to be
893 * DBD_MAX_SRCH_RSLTS * sizefof(cnid_t)
895 * @returns -1 on error, 0 when nothing found, else the number of matches
897 int dbif_search(DBD *dbd, DBT *key, char *resbuf)
903 char *cnids = resbuf;
905 char *namebkp = key->data;
906 int namelenbkp = key->size;
908 memset(&pkey, 0, sizeof(DBT));
909 memset(&data, 0, sizeof(DBT));
912 ret = dbd->db_table[DBIF_IDX_NAME].db->cursor(dbd->db_table[DBIF_IDX_NAME].db,
917 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(ret));
922 ret = cursorp->pget(cursorp, key, &pkey, &data, DB_SET_RANGE);
923 while (count < DBD_MAX_SRCH_RSLTS && ret != DB_NOTFOUND) {
924 if (!((namelenbkp <= key->size) && (strncmp(namebkp, key->data, namelenbkp) == 0)))
927 memcpy(cnids, pkey.data, sizeof(cnid_t));
928 memcpy(&cnid, pkey.data, sizeof(cnid_t));
929 cnids += sizeof(cnid_t);
930 LOG(log_debug, logtype_cnid, "match: CNID %" PRIu32, ntohl(cnid));
932 ret = cursorp->pget(cursorp, key, &pkey, &data, DB_NEXT);
939 cursorp->close(cursorp);
943 int dbif_txn_begin(DBD *dbd)
947 /* If we already have an active txn, just return */
951 /* If our DBD has no env, just return (-> in memory db) */
952 if (dbd->db_env == NULL)
955 ret = dbd->db_env->txn_begin(dbd->db_env, NULL, &dbd->db_txn, 0);
958 LOG(log_error, logtype_cnid, "error starting transaction: %s", db_strerror(ret));
964 int dbif_txn_commit(DBD *dbd)
971 /* If our DBD has no env, just return (-> in memory db) */
972 if (dbd->db_env == NULL)
975 ret = dbd->db_txn->commit(dbd->db_txn, 0);
979 LOG(log_error, logtype_cnid, "error committing transaction: %s", db_strerror(ret));
985 int dbif_txn_abort(DBD *dbd)
992 /* If our DBD has no env, just return (-> in memory db) */
993 if (dbd->db_env == NULL)
996 ret = dbd->db_txn->abort(dbd->db_txn);
1000 LOG(log_error, logtype_cnid, "error aborting transaction: %s", db_strerror(ret));
1007 ret = 1 -> commit txn
1008 ret = 0 -> abort txn -> exit!
1009 anything else -> exit!
1011 void dbif_txn_close(DBD *dbd, int ret)
1014 if (dbif_txn_abort(dbd) < 0) {
1015 LOG( log_error, logtype_cnid, "Fatal error aborting transaction. Exiting!");
1018 } else if (ret == 1) {
1019 ret = dbif_txn_commit(dbd);
1021 LOG( log_error, logtype_cnid, "Fatal error committing transaction. Exiting!");
1028 int dbif_txn_checkpoint(DBD *dbd, u_int32_t kbyte, u_int32_t min, u_int32_t flags)
1031 ret = dbd->db_env->txn_checkpoint(dbd->db_env, kbyte, min, flags);
1033 LOG(log_error, logtype_cnid, "error checkpointing transaction susystem: %s", db_strerror(ret));
1039 int dbif_count(DBD *dbd, const int dbi, u_int32_t *count)
1043 DB *db = dbd->db_table[dbi].db;
1045 ret = db->stat(db, NULL, &sp, 0);
1048 LOG(log_error, logtype_cnid, "error getting stat infotmation on database: %s", db_strerror(ret));
1052 *count = sp->bt_ndata;
1058 int dbif_copy_rootinfokey(DBD *srcdbd, DBD *destdbd)
1063 memset(&key, 0, sizeof(key));
1064 memset(&data, 0, sizeof(data));
1066 key.data = ROOTINFO_KEY;
1067 key.size = ROOTINFO_KEYLEN;
1069 if ((rc = dbif_get(srcdbd, DBIF_CNID, &key, &data, 0)) <= 0) {
1070 LOG(log_error, logtype_cnid, "dbif_copy_rootinfokey: Error getting rootinfo record");
1074 memset(&key, 0, sizeof(key));
1075 key.data = ROOTINFO_KEY;
1076 key.size = ROOTINFO_KEYLEN;
1078 if ((rc = dbif_put(destdbd, DBIF_CNID, &key, &data, 0))) {
1079 LOG(log_error, logtype_cnid, "dbif_copy_rootinfokey: Error writing rootinfo key");
1086 int dbif_dump(DBD *dbd, int dumpindexes)
1089 uint32_t max = 0, count = 0, cnid, type, did, lastid, version;
1093 DBT key = { 0 }, data = { 0 };
1094 DB *db = dbd->db_table[DBIF_CNID].db;
1095 char *typestring[2] = {"f", "d"};
1098 printf("CNID database dump:\n");
1100 rc = db->cursor(db, NULL, &cur, 0);
1102 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1106 cur->c_get(cur, &key, &data, DB_FIRST);
1108 /* Parse and print data */
1109 memcpy(&cnid, key.data, 4);
1114 /* Rootinfo node ? */
1116 memcpy(&stamp, (char *)data.data + CNID_DEV_OFS, sizeof(time_t));
1117 memcpy(&lastid, (char *)data.data + CNID_TYPE_OFS, CNID_TYPE_LEN);
1118 lastid = ntohl(lastid);
1119 memcpy(&version, (char *)data.data + CNID_DID_OFS, CNID_DID_LEN);
1120 version = ntohl(version);
1122 strftime(timebuf, sizeof(timebuf), "%b %d %Y %H:%M:%S", localtime(&stamp));
1123 printf("CNID db version: %u, dbd stamp: 0x%08x (%s), next free CNID: %u\n",
1124 version, (unsigned int)stamp, timebuf, lastid + 1);
1127 memcpy(&dev, (char *)data.data + CNID_DEV_OFS, 8);
1130 memcpy(&ino, (char *)data.data + CNID_INO_OFS, 8);
1133 memcpy(&type, (char *)data.data + CNID_TYPE_OFS, 4);
1136 memcpy(&did, (char *)data.data + CNID_DID_OFS, 4);
1140 printf("id: %10u, did: %10u, type: %s, dev: 0x%llx, ino: 0x%016llx, name: %s\n",
1141 cnid, did, typestring[type],
1142 (long long unsigned int)dev, (long long unsigned int)ino,
1143 (char *)data.data + CNID_NAME_OFS);
1147 rc = cur->c_get(cur, &key, &data, DB_NEXT);
1150 if (rc != DB_NOTFOUND) {
1151 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1155 rc = cur->c_close(cur);
1157 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
1160 printf("%u CNIDs in database. Max CNID: %u.\n", count, max);
1162 /* Dump indexes too ? */
1164 /* DBIF_IDX_DEVINO */
1165 printf("\ndev/inode index:\n");
1167 db = dbd->db_table[DBIF_IDX_DEVINO].db;
1168 rc = db->cursor(db, NULL, &cur, 0);
1170 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1174 cur->c_get(cur, &key, &data, DB_FIRST);
1176 /* Parse and print data */
1179 memcpy(&cnid, data.data, CNID_LEN);
1185 memcpy(&dev, key.data, CNID_DEV_LEN);
1188 memcpy(&ino, (char *)key.data + CNID_DEV_LEN, CNID_INO_LEN);
1191 printf("id: %10u <== dev: 0x%llx, ino: 0x%016llx\n",
1192 cnid, (unsigned long long int)dev, (unsigned long long int)ino);
1195 rc = cur->c_get(cur, &key, &data, DB_NEXT);
1197 if (rc != DB_NOTFOUND) {
1198 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1202 rc = cur->c_close(cur);
1204 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
1207 printf("%u items\n", count);
1209 /* Now dump DBIF_IDX_DIDNAME */
1210 printf("\ndid/name index:\n");
1212 db = dbd->db_table[DBIF_IDX_DIDNAME].db;
1213 rc = db->cursor(db, NULL, &cur, 0);
1215 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1219 cur->c_get(cur, &key, &data, DB_FIRST);
1221 /* Parse and print data */
1224 memcpy(&cnid, data.data, CNID_LEN);
1230 memcpy(&did, key.data, CNID_LEN);
1233 printf("id: %10u <== did: %10u, name: %s\n", cnid, did, (char *)key.data + CNID_LEN);
1236 rc = cur->c_get(cur, &key, &data, DB_NEXT);
1238 if (rc != DB_NOTFOUND) {
1239 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1243 rc = cur->c_close(cur);
1245 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
1248 printf("%u items\n", count);
1255 Iterates over dbd, returning cnids.
1256 Uses in-value of cnid to seek to that cnid, then gets next and return that in cnid.
1257 If close=1, close cursor.
1258 Return -1 on error, 0 on EOD (end-of-database), 1 if returning cnid.
1260 int dbif_idwalk(DBD *dbd, cnid_t *cnid, int close)
1266 static DBT key = { 0 }, data = { 0 };
1267 DB *db = dbd->db_table[DBIF_CNID].db;
1271 dbd->db_cur->close(dbd->db_cur);
1277 /* An dbif_del will have closed our cursor too */
1278 if ( ! dbd->db_cur ) {
1279 if ((rc = db->cursor(db, NULL, &dbd->db_cur, 0)) != 0) {
1280 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
1283 flag = DB_SET_RANGE; /* This will seek to next cnid after the one just deleted */
1286 key.size = sizeof(cnid_t);
1290 if ((rc = dbd->db_cur->get(dbd->db_cur, &key, &data, flag)) == 0) {
1291 memcpy(cnid, key.data, sizeof(cnid_t));
1292 *cnid = ntohl(*cnid);
1296 if (rc != DB_NOTFOUND) {
1297 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
1298 dbd->db_cur->close(dbd->db_cur);
1304 dbd->db_cur->close(dbd->db_cur);