/*
- * $Id: dbif.c,v 1.15 2009-10-13 22:55:37 didg Exp $
- *
* Copyright (C) Joerg Lenneis 2003
* Copyright (C) Frank Lahm 2009
* All Rights Reserved. See COPYING.
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif /* HAVE_SYS_TYPES_H */
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
-#include <sys/cdefs.h>
#include <unistd.h>
-#include <atalk/logger.h>
+#include <arpa/inet.h>
+
#include <db.h>
+
+#include <atalk/logger.h>
+#include <atalk/util.h>
+
#include "db_param.h"
#include "dbif.h"
#include "pack.h"
#define DB_ERRLOGFILE "db_errlog"
-static char *old_dbfiles[] = {"cnid.db", NULL};
-
-/* --------------- */
-static int upgrade_required(void)
-{
- int i;
- int found = 0;
- struct stat st;
-
- for (i = 0; old_dbfiles[i] != NULL; i++) {
- if ( !(stat(old_dbfiles[i], &st) < 0) ) {
- found++;
- continue;
- }
- if (errno != ENOENT) {
- LOG(log_error, logtype_cnid, "cnid_open: Checking %s gave %s", old_dbfiles[i], strerror(errno));
- found++;
- }
- }
- return found;
-}
-
-/* --------------- */
-int dbif_stamp(DBD *dbd, void *buffer, int size)
+/*!
+ * Get the db stamp which is the st_ctime of the file "cnid2.db" and store it in buffer
+ */
+static int dbif_stamp(DBD *dbd, void *buffer, int size)
{
struct stat st;
int rc,cwd;
}
if ((rc = stat(dbd->db_table[DBIF_CNID].name, &st)) < 0) {
- LOG(log_error, logtype_cnid, "error stating database %s: %s", dbd->db_table[DBIF_CNID].name, db_strerror(rc));
+ LOG(log_error, logtype_cnid, "error stating database %s: %s", dbd->db_table[DBIF_CNID].name, db_strerror(errno));
return -1;
}
+
+ LOG(log_maxdebug, logtype_cnid,"stamp: %s", asctime(localtime(&st.st_ctime)));
+
memset(buffer, 0, size);
memcpy(buffer, &st.st_ctime, sizeof(st.st_ctime));
return 0;
}
+/*!
+ * Inititialize rootinfo key (which has CNID 0 as key)
+ *
+ * This also "stamps" the database, which means storing st.st_ctime of the
+ * "cnid2.db" file in the rootinfo data at the DEV offset
+ *
+ * @param dbd (rw) database handle
+ * @param version (r) database version number
+ *
+ * @returns -1 on error, 0 on success
+ */
+static int dbif_init_rootinfo(DBD *dbd, int version)
+{
+ DBT key, data;
+ uint32_t v;
+ char buf[ROOTINFO_DATALEN];
+
+ LOG(log_debug, logtype_cnid, "Setting CNID database version to %u", version);
+
+ v = version;
+ v = htonl(v);
+
+ memset(&key, 0, sizeof(key));
+ memset(&data, 0, sizeof(data));
+ key.data = ROOTINFO_KEY;
+ key.size = ROOTINFO_KEYLEN;
+ data.data = buf;
+ data.size = ROOTINFO_DATALEN;
+
+ memcpy(buf, ROOTINFO_DATA, ROOTINFO_DATALEN);
+ memcpy(buf + CNID_DID_OFS, &v, sizeof(v));
+ if (dbif_stamp(dbd, buf + CNID_DEV_OFS, CNID_DEV_LEN) < 0)
+ return -1;
+
+ if (dbif_put(dbd, DBIF_CNID, &key, &data, 0) < 0)
+ return -1;
+ if (dbif_txn_commit(dbd) != 1) {
+ LOG(log_error, logtype_cnid, "dbif_init_rootinfo: cant commit txn");
+ return -1;
+ }
+
+ return 0;
+}
+
+/*!
+ * Return CNID database version number
+ *
+ * Returns version in *version
+ *
+ * @returns -1 on error, 0 if theres no rootinfo key yet, 1 if *version is returned
+ */
+static int dbif_getversion(DBD *dbd, uint32_t *version)
+{
+ DBT key, data;
+ int ret;
+
+ LOG(log_maxdebug, logtype_cnid, "dbif_getversion: reading version info");
+
+ *version = -1;
+ memset(&key, 0, sizeof(key));
+ memset(&data, 0, sizeof(data));
+ key.data = ROOTINFO_KEY;
+ key.size = ROOTINFO_KEYLEN;
+
+ switch (dbif_get(dbd, DBIF_CNID, &key, &data, 0)) {
+ case 1: /* found */
+ memcpy(version, (char *)data.data + CNID_DID_OFS, sizeof(uint32_t));
+ *version = ntohl(*version);
+ LOG(log_debug, logtype_cnid, "CNID database version %u", *version);
+ ret = 1;
+ break;
+ case 0: /* not found */
+ LOG(log_debug, logtype_cnid, "dbif_getversion: no version info found");
+ ret = 0;
+ break;
+ default:
+ LOG(log_error, logtype_cnid, "dbif_getversion: database error");
+ ret = -1;
+ break;
+ }
+
+ return ret;
+}
+
+/*!
+ * Set CNID database version number
+ *
+ * Initializes rootinfo key as neccessary
+ * @returns -1 on error, 0 on success
+ */
+static int dbif_setversion(DBD *dbd, uint32_t version)
+{
+ int ret;
+ DBT key, data;
+ uint32_t v;
+
+ LOG(log_debug, logtype_cnid, "Setting CNID database version to %u", version);
+
+ v = version;
+ v = htonl(v);
+
+ memset(&key, 0, sizeof(key));
+ memset(&data, 0, sizeof(data));
+ key.data = ROOTINFO_KEY;
+ key.size = ROOTINFO_KEYLEN;
+
+ if ((ret = dbif_get(dbd, DBIF_CNID, &key, &data, 0)) == -1)
+ return -1;
+ if (ret == 0) {
+ /* No rootinfo key yet, init it */
+ if (dbif_init_rootinfo(dbd, CNID_VERSION) != 0)
+ return -1;
+ /* Now try again */
+ if (dbif_get(dbd, DBIF_CNID, &key, &data, 0) == -1)
+ return -1;
+ }
+ memcpy((char *)data.data + CNID_DID_OFS, &v, sizeof(v));
+ data.size = ROOTINFO_DATALEN;
+ if (dbif_put(dbd, DBIF_CNID, &key, &data, 0) < 0)
+ return -1;
+
+ return 0;
+}
+
+/*!
+ * Upgrade CNID database versions, initialize rootinfo key as as necessary in dbif_setversion()
+ *
+ * For now this does nothing, as upgrading from ver. 0 to 1 is done in dbif_open
+ */
+#define UNINTIALIZED_DB UINT32_MAX
+static int dbif_upgrade(DBD *dbd)
+{
+ uint32_t version = CNID_VERSION_UNINTIALIZED_DB;
+
+ if (dbif_getversion(dbd, &version) == -1)
+ return -1;
+ if (version == CNID_VERSION_UNINTIALIZED_DB) {
+ version = CNID_VERSION;
+ if (dbif_setversion(dbd, CNID_VERSION) != 0)
+ return -1;
+ }
+
+ /*
+ * Do upgrade stuff ...
+ */
+
+ /* Write current version to database */
+ if (version != CNID_VERSION) {
+ if (dbif_setversion(dbd, CNID_VERSION) != 0)
+ return -1;
+ }
+
+ LOG(log_debug, logtype_cnid, "Finished CNID database version upgrade check");
+
+ return 0;
+}
+
+/* --------------- */
+static int dbif_openlog(DBD *dbd)
+{
+ int ret = 0;
+ int cwd = -1;
+
+ if ( ! dbd->db_filename)
+ /* in memory db */
+ return 0;
+
+ /* Remember cwd */
+ if ((cwd = open(".", O_RDONLY)) < 0) {
+ LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
+ return -1;
+ }
+
+ /* chdir to db_envhome */
+ if ((chdir(dbd->db_envhome)) != 0) {
+ LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
+ ret = -1;
+ goto exit;
+ }
+
+ if ((dbd->db_errlog = fopen(DB_ERRLOGFILE, "a")) == NULL)
+ LOG(log_warning, logtype_cnid, "error creating/opening DB errlogfile: %s", strerror(errno));
+
+ if (dbd->db_errlog != NULL) {
+ dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
+ dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
+ }
+
+exit:
+ if (cwd != -1) {
+ if ((fchdir(cwd)) != 0) {
+ LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
+ ret = -1;
+ }
+ close(cwd);
+ }
+ return ret;
+}
+
+/* --------------- */
+static int dbif_logautorem(DBD *dbd)
+{
+ int ret = 0;
+ int cwd = -1;
+ char **logfiles = NULL;
+ char **file;
+
+ if ( ! dbd->db_filename)
+ /* in memory db */
+ return 0;
+
+ /* Remember cwd */
+ if ((cwd = open(".", O_RDONLY)) < 0) {
+ LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
+ return -1;
+ }
+
+ /* chdir to db_envhome */
+ if ((chdir(dbd->db_envhome)) != 0) {
+ LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
+ ret = -1;
+ goto exit;
+ }
+
+ if ((ret = dbd->db_env->log_archive(dbd->db_env, &logfiles, 0)) != 0) {
+ LOG(log_error, logtype_cnid, "error getting list of stale logfiles: %s",
+ db_strerror(ret));
+ dbd->db_env->close(dbd->db_env, 0);
+ dbd->db_env = NULL;
+ ret = -1;
+ goto exit;
+ }
+
+ if (logfiles != NULL) {
+ for (file = logfiles; *file != NULL; file++) {
+ if (unlink(*file) < 0)
+ LOG(log_warning, logtype_cnid, "Error removing stale logfile %s: %s", *file, strerror(errno));
+ }
+ free(logfiles);
+ }
+
+exit:
+ if (cwd != -1) {
+ if ((fchdir(cwd)) != 0) {
+ LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
+ ret = -1;
+ }
+ close(cwd);
+ }
+ return ret;
+}
+
+/*!
+ * Get lock on db lock file
+ *
+ * @args cmd (r) lock command:
+ * LOCK_FREE: close lockfd
+ * LOCK_UNLOCK: unlock lockm keep lockfd open
+ * LOCK_EXCL: F_WRLCK on lockfd
+ * LOCK_SHRD: F_RDLCK on lockfd
+ * @args dbpath (r) path to lockfile, only used on first call,
+ * later the stored fd is used
+ * @returns LOCK_FREE/LOCK_UNLOCK return 0 on success, -1 on error
+ * LOCK_EXCL/LOCK_SHRD return LOCK_EXCL or LOCK_SHRD respectively on
+ * success, 0 if the lock couldn't be acquired, -1 on other errors
+ */
+int get_lock(int cmd, const char *dbpath)
+{
+ static int lockfd = -1;
+ int ret;
+ char lockpath[PATH_MAX];
+ struct stat st;
+
+ switch (cmd) {
+ case LOCK_FREE:
+ if (lockfd == -1)
+ return -1;
+ close(lockfd);
+ lockfd = -1;
+ return 0;
+
+ case LOCK_UNLOCK:
+ if (lockfd == -1)
+ return -1;
+ return unlock(lockfd, 0, SEEK_SET, 0);
+
+ case LOCK_EXCL:
+ case LOCK_SHRD:
+ if (lockfd == -1) {
+ if ( (strlen(dbpath) + strlen(LOCKFILENAME+1)) > (PATH_MAX - 1) ) {
+ LOG(log_error, logtype_cnid, ".AppleDB pathname too long");
+ return -1;
+ }
+ strncpy(lockpath, dbpath, PATH_MAX - 1);
+ strcat(lockpath, "/");
+ strcat(lockpath, LOCKFILENAME);
+
+ if ((lockfd = open(lockpath, O_RDWR | O_CREAT, 0644)) < 0) {
+ LOG(log_error, logtype_cnid, "Error opening lockfile: %s", strerror(errno));
+ return -1;
+ }
+
+ if ((stat(dbpath, &st)) != 0) {
+ LOG(log_error, logtype_cnid, "Error statting lockfile: %s", strerror(errno));
+ return -1;
+ }
+
+ if ((chown(lockpath, st.st_uid, st.st_gid)) != 0) {
+ LOG(log_error, logtype_cnid, "Error inheriting lockfile permissions: %s",
+ strerror(errno));
+ return -1;
+ }
+ }
+
+ if (cmd == LOCK_EXCL)
+ ret = write_lock(lockfd, 0, SEEK_SET, 0);
+ else
+ ret = read_lock(lockfd, 0, SEEK_SET, 0);
+
+ if (ret != 0) {
+ if (cmd == LOCK_SHRD)
+ LOG(log_error, logtype_cnid, "Volume CNID db is locked, try again...");
+ return 0;
+ }
+
+ LOG(log_debug, logtype_cnid, "get_lock: got %s lock",
+ cmd == LOCK_EXCL ? "LOCK_EXCL" : "LOCK_SHRD");
+ return cmd;
+
+ default:
+ return -1;
+ } /* switch(cmd) */
+
+ /* deadc0de, never get here */
+ return -1;
+}
+
/* --------------- */
DBD *dbif_init(const char *envhome, const char *filename)
{
dbd->db_table[DBIF_CNID].name = "cnid2.db";
dbd->db_table[DBIF_IDX_DEVINO].name = "devino.db";
dbd->db_table[DBIF_IDX_DIDNAME].name = "didname.db";
+ dbd->db_table[DBIF_IDX_NAME].name = "name.db";
dbd->db_table[DBIF_CNID].type = DB_BTREE;
dbd->db_table[DBIF_IDX_DEVINO].type = DB_BTREE;
dbd->db_table[DBIF_IDX_DIDNAME].type = DB_BTREE;
+ dbd->db_table[DBIF_IDX_NAME].type = DB_BTREE;
dbd->db_table[DBIF_CNID].openflags = DB_CREATE;
dbd->db_table[DBIF_IDX_DEVINO].openflags = DB_CREATE;
dbd->db_table[DBIF_IDX_DIDNAME].openflags = DB_CREATE;
+ dbd->db_table[DBIF_IDX_NAME].openflags = DB_CREATE;
+
+ dbd->db_table[DBIF_IDX_NAME].flags = DB_DUPSORT;
return dbd;
}
/*
We must open the db_env with an absolute pathname, as `dbd` keeps chdir'ing, which
breaks e.g. bdb logfile-rotation with relative pathnames.
- But still we use relative paths with upgrade_required() and the DB_ERRLOGFILE
+ But still we use relative paths with DB_ERRLOGFILE
in order to avoid creating absolute paths by copying. Both have no problem with
a relative path.
*/
int dbif_env_open(DBD *dbd, struct db_param *dbp, uint32_t dbenv_oflags)
{
- int ret, cwd;
- char **logfiles = NULL;
- char **file;
-
- /* Remember cwd */
- if ((cwd = open(".", O_RDONLY)) < 0) {
- LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
- return -1;
- }
-
- /* chdir to db_envhome. makes it easier checking for old db files and creating db_errlog file */
- if ((chdir(dbd->db_envhome)) != 0) {
- LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
- return -1;
- }
-
- /* Refuse to do anything if this is an old version of the CNID database */
- if (upgrade_required()) {
- LOG(log_error, logtype_cnid, "Found version 1 of the CNID database. Please upgrade to version 2");
- return -1;
- }
-
- if ((dbd->db_errlog = fopen(DB_ERRLOGFILE, "a")) == NULL)
- LOG(log_warning, logtype_cnid, "error creating/opening DB errlogfile: %s", strerror(errno));
-
- if ((fchdir(cwd)) != 0) {
- LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
- return -1;
- }
+ int ret;
if ((ret = db_env_create(&dbd->db_env, 0))) {
LOG(log_error, logtype_cnid, "error creating DB environment: %s",
return -1;
}
- if (dbd->db_errlog != NULL) {
- dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
- dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
- }
+ dbd->db_param = *dbp;
+
+ if ((dbif_openlog(dbd)) != 0)
+ return -1;
if (dbenv_oflags & DB_RECOVER) {
+
+ LOG(log_debug, logtype_cnid, "Running recovery");
+
dbd->db_env->set_verbose(dbd->db_env, DB_VERB_RECOVERY, 1);
/* Open the database for recovery using DB_PRIVATE option which is faster */
if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags | DB_PRIVATE, 0))) {
dbd->db_env = NULL;
return -1;
}
+ dbd->db_errlog = NULL;
if ((ret = db_env_create(&dbd->db_env, 0))) {
LOG(log_error, logtype_cnid, "error creating DB environment after recovery: %s",
dbd->db_env = NULL;
return -1;
}
+
+ if ((dbif_openlog(dbd)) != 0)
+ return -1;
+
+ LOG(log_debug, logtype_cnid, "Finished recovery.");
}
if ((ret = dbd->db_env->set_cachesize(dbd->db_env, 0, 1024 * dbp->cachesize, 0))) {
return -1;
}
- if (dbd->db_errlog != NULL) {
- dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
- dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
+ if ((ret = dbd->db_env->set_lk_max_locks(dbd->db_env, dbp->maxlocks))) {
+ LOG(log_error, logtype_cnid, "error setting DB environment maxlocks to %i: %s",
+ 10000, db_strerror(ret));
+ dbd->db_env->close(dbd->db_env, 0);
+ dbd->db_env = NULL;
+ return -1;
}
+
+ if ((ret = dbd->db_env->set_lk_max_objects(dbd->db_env, dbp->maxlockobjs))) {
+ LOG(log_error, logtype_cnid, "error setting DB environment max lockobjects to %i: %s",
+ 10000, db_strerror(ret));
+ dbd->db_env->close(dbd->db_env, 0);
+ dbd->db_env = NULL;
+ return -1;
+ }
+
if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags, 0))) {
LOG(log_error, logtype_cnid, "error opening DB environment after recovery: %s",
db_strerror(ret));
}
if (dbp->logfile_autoremove) {
- if (dbd->db_env->log_archive(dbd->db_env, &logfiles, 0)) {
- LOG(log_error, logtype_cnid, "error getting list of stale logfiles: %s",
- db_strerror(ret));
- dbd->db_env->close(dbd->db_env, 0);
- dbd->db_env = NULL;
+ if ((dbif_logautorem(dbd)) != 0)
return -1;
- }
- if (logfiles != NULL) {
- for (file = logfiles; *file != NULL; file++) {
- if (unlink(*file) < 0)
- LOG(log_warning, logtype_cnid, "Error removing stale logfile %s: %s", *file, strerror(errno));
- }
- free(logfiles);
- }
#if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 7)
if ((ret = dbd->db_env->log_set_config(dbd->db_env, DB_LOG_AUTO_REMOVE, 1))) {
}
/* --------------- */
-int dbif_open(DBD *dbd, struct db_param *dbp _U_, int reindex)
+int dbif_open(DBD *dbd, struct db_param *dbp, int reindex)
{
int ret, i, cwd;
u_int32_t count;
}
if ((stat(dbd->db_filename, &st)) == 0) {
- LOG(log_debug, logtype_cnid, "See if we can upgrade the CNID database");
+ LOG(log_debug, logtype_cnid, "See if we can upgrade the CNID database...");
if ((ret = db_create(&upgrade_db, dbd->db_env, 0))) {
LOG(log_error, logtype_cnid, "error creating handle for database: %s", db_strerror(ret));
return -1;
LOG(log_error, logtype_cnid, "error forcing checkpoint: %s", db_strerror(ret));
return -1;
}
+ LOG(log_debug, logtype_cnid, "Finished BerkeleyBD upgrade check");
}
if ((fchdir(cwd)) != 0) {
}
}
+ if ( ! dbd->db_env) { /* In memory db */
+ if ((ret = dbd->db_table[i].db->set_cachesize(dbd->db_table[i].db,
+ 0,
+ dbp->cachesize,
+ 4)) /* split in 4 memory chunks */
+ < 0) {
+ LOG(log_error, logtype_cnid, "error setting cachesize %u KB for database %s: %s",
+ dbp->cachesize / 1024, dbd->db_table[i].name, db_strerror(ret));
+ return -1;
+ }
+ }
+
if (dbd->db_table[i].db->open(dbd->db_table[i].db,
dbd->db_txn,
dbd->db_filename,
LOG(log_error, logtype_cnid, "Cant open database");
return -1;
}
- if (dbd->db_errlog != NULL)
- dbd->db_table[i].db->set_errfile(dbd->db_table[i].db, dbd->db_errlog);
if (reindex && i > 0) {
LOG(log_info, logtype_cnid, "Truncating CNID index.");
}
if (reindex)
LOG(log_info, logtype_cnid, "... done.");
+
+ if (reindex)
+ LOG(log_info, logtype_cnid, "Reindexing name index...");
+
+ /*
+ * Upgrading from version 0 to 1 requires adding the name index below which
+ * must be done by specifying the DB_CREATE flag
+ */
+ uint32_t version = CNID_VERSION;
+ if (dbd->db_envhome && !reindex) {
+ if (dbif_getversion(dbd, &version) == -1)
+ return -1;
+ }
+
+ if ((ret = dbd->db_table[0].db->associate(dbd->db_table[0].db,
+ dbd->db_txn,
+ dbd->db_table[DBIF_IDX_NAME].db,
+ idxname,
+ (reindex
+ ||
+ ((CNID_VERSION == CNID_VERSION_1) && (version == CNID_VERSION_0)))
+ ? DB_CREATE : 0)) != 0) {
+ LOG(log_error, logtype_cnid, "Failed to associate name index: %s", db_strerror(ret));
+ return -1;
+ }
+ if (reindex)
+ LOG(log_info, logtype_cnid, "... done.");
+
+ if ((dbd->db_envhome) && ((ret = dbif_upgrade(dbd)) != 0)) {
+ LOG(log_error, logtype_cnid, "Error upgrading CNID database to version %d", CNID_VERSION);
+ return -1;
+ }
return 0;
}
/* ------------------------ */
-int dbif_closedb(DBD *dbd)
+static int dbif_closedb(DBD *dbd)
{
int i;
int ret;
In order to support silent database upgrades:
destroy env at cnid_dbd shutdown.
*/
-int dbif_prep_upgrade(const char *path)
+int dbif_env_remove(const char *path)
{
- int cwd, ret;
+ int ret;
DBD *dbd;
LOG(log_debug, logtype_cnid, "Reopening BerkeleyDB environment");
if (NULL == (dbd = dbif_init(path, "cnid2.db")))
return -1;
- /* Remember cwd */
- if ((cwd = open(".", O_RDONLY)) < 0) {
- LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
- return -1;
- }
-
- /* chdir to db_envhome. makes it easier checking for old db files and creating db_errlog file */
- if ((chdir(dbd->db_envhome)) != 0) {
- LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
- return -1;
- }
-
- if ((dbd->db_errlog = fopen(DB_ERRLOGFILE, "a")) == NULL)
- LOG(log_warning, logtype_cnid, "error creating/opening DB errlogfile: %s", strerror(errno));
-
- if ((fchdir(cwd)) != 0) {
- LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
- return -1;
- }
-
/* Get db_env handle */
if ((ret = db_env_create(&dbd->db_env, 0))) {
LOG(log_error, logtype_cnid, "error creating DB environment: %s", db_strerror(ret));
return -1;
}
- /* Set logfile */
- if (dbd->db_errlog != NULL) {
- dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
- dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
- dbd->db_env->set_verbose(dbd->db_env, DB_VERB_RECOVERY, 1);
- }
+ if ((dbif_openlog(dbd)) != 0)
+ return -1;
/* Open environment with recovery */
if ((ret = dbd->db_env->open(dbd->db_env,
return 0;
if (ret) {
LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
- dbd->db_table[dbi].name, db_strerror(errno));
+ dbd->db_table[dbi].name, db_strerror(ret));
return -1;
} else
return 1;
}
if (ret) {
LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
- dbd->db_table[dbi].name, db_strerror(errno));
+ dbd->db_table[dbi].name, db_strerror(ret));
return -1;
} else
return 1;
int ret;
if (dbif_txn_begin(dbd) < 0) {
- LOG(log_error, logtype_cnid, "error setting key/value in %s: %s",
- dbd->db_table[dbi].name, db_strerror(errno));
+ LOG(log_error, logtype_cnid, "error setting key/value in %s", dbd->db_table[dbi].name);
return -1;
}
key,
val,
flags);
+
if (ret) {
if ((flags & DB_NOOVERWRITE) && ret == DB_KEYEXIST) {
return 1;
} else {
LOG(log_error, logtype_cnid, "error setting key/value in %s: %s",
- dbd->db_table[dbi].name, db_strerror(errno));
+ dbd->db_table[dbi].name, db_strerror(ret));
return -1;
}
} else
}
if (dbif_txn_begin(dbd) < 0) {
- LOG(log_error, logtype_cnid, "error deleting key/value from %s: %s",
- dbd->db_table[dbi].name, db_strerror(errno));
+ LOG(log_error, logtype_cnid, "error deleting key/value from %s", dbd->db_table[dbi].name);
return -1;
}
key,
flags);
- if (ret == DB_NOTFOUND || ret == DB_SECONDARY_BAD)
+ if (ret == DB_NOTFOUND) {
+ LOG(log_info, logtype_cnid, "key not found");
return 0;
+ }
if (ret) {
LOG(log_error, logtype_cnid, "error deleting key/value from %s: %s",
- dbd->db_table[dbi].name, db_strerror(errno));
+ dbd->db_table[dbi].name, db_strerror(ret));
return -1;
} else
return 1;
}
+/*!
+ * Search the database by name
+ *
+ * @param resbuf (w) buffer for search results CNIDs, maxsize is assumed to be
+ * DBD_MAX_SRCH_RSLTS * sizefof(cnid_t)
+ *
+ * @returns -1 on error, 0 when nothing found, else the number of matches
+ */
+int dbif_search(DBD *dbd, DBT *key, char *resbuf)
+{
+ int ret = 0;
+ int count = 0;
+ DBC *cursorp = NULL;
+ DBT pkey, data;
+ char *cnids = resbuf;
+ cnid_t cnid;
+ char *namebkp = key->data;
+ int namelenbkp = key->size;
+
+ memset(&pkey, 0, sizeof(DBT));
+ memset(&data, 0, sizeof(DBT));
+
+ /* Get a cursor */
+ ret = dbd->db_table[DBIF_IDX_NAME].db->cursor(dbd->db_table[DBIF_IDX_NAME].db,
+ NULL,
+ &cursorp,
+ 0);
+ if (ret != 0) {
+ LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(ret));
+ ret = -1;
+ goto exit;
+ }
+
+ ret = cursorp->pget(cursorp, key, &pkey, &data, DB_SET_RANGE);
+ while (count < DBD_MAX_SRCH_RSLTS && ret != DB_NOTFOUND) {
+ if (!((namelenbkp <= key->size) && (strncmp(namebkp, key->data, namelenbkp) == 0)))
+ break;
+ count++;
+ memcpy(cnids, pkey.data, sizeof(cnid_t));
+ memcpy(&cnid, pkey.data, sizeof(cnid_t));
+ cnids += sizeof(cnid_t);
+ LOG(log_debug, logtype_cnid, "match: CNID %" PRIu32, ntohl(cnid));
+
+ ret = cursorp->pget(cursorp, key, &pkey, &data, DB_NEXT);
+ }
+
+ ret = count;
+
+exit:
+ if (cursorp != NULL)
+ cursorp->close(cursorp);
+ return ret;
+}
+
int dbif_txn_begin(DBD *dbd)
{
int ret;
ret = dbd->db_env->txn_begin(dbd->db_env, NULL, &dbd->db_txn, 0);
if (ret) {
- LOG(log_error, logtype_cnid, "error starting transaction: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "error starting transaction: %s", db_strerror(ret));
return -1;
} else
return 0;
dbd->db_txn = NULL;
if (ret) {
- LOG(log_error, logtype_cnid, "error committing transaction: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "error committing transaction: %s", db_strerror(ret));
return -1;
} else
return 1;
dbd->db_txn = NULL;
if (ret) {
- LOG(log_error, logtype_cnid, "error aborting transaction: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "error aborting transaction: %s", db_strerror(ret));
return -1;
} else
return 0;
}
/*
- ret = 1 -> commit txn
- ret = 0 -> abort txn -> exit!
+ ret = 1 -> commit txn if db_param.txn_frequency
+ ret = 0 -> abort txn db_param.txn_frequency -> exit!
anything else -> exit!
+
+ @returns 0 on success (abort or commit), -1 on error
*/
-void dbif_txn_close(DBD *dbd, int ret)
+int dbif_txn_close(DBD *dbd, int ret)
{
if (ret == 0) {
if (dbif_txn_abort(dbd) < 0) {
LOG( log_error, logtype_cnid, "Fatal error aborting transaction. Exiting!");
- exit(EXIT_FAILURE);
+ return -1;
}
} else if (ret == 1) {
ret = dbif_txn_commit(dbd);
if ( ret < 0) {
LOG( log_error, logtype_cnid, "Fatal error committing transaction. Exiting!");
- exit(EXIT_FAILURE);
+ return -1;
}
- } else
- exit(EXIT_FAILURE);
+ } else {
+ return -1;
+ }
+
+ return 0;
}
int dbif_txn_checkpoint(DBD *dbd, u_int32_t kbyte, u_int32_t min, u_int32_t flags)
int ret;
ret = dbd->db_env->txn_checkpoint(dbd->db_env, kbyte, min, flags);
if (ret) {
- LOG(log_error, logtype_cnid, "error checkpointing transaction susystem: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "error checkpointing transaction susystem: %s", db_strerror(ret));
return -1;
} else
return 0;
ret = db->stat(db, NULL, &sp, 0);
if (ret) {
- LOG(log_error, logtype_cnid, "error getting stat infotmation on database: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "error getting stat infotmation on database: %s", db_strerror(ret));
return -1;
}
int dbif_dump(DBD *dbd, int dumpindexes)
{
int rc;
- uint32_t max = 0, count = 0, cnid, type, did, lastid;
+ uint32_t max = 0, count = 0, cnid, type, did, lastid, version;
uint64_t dev, ino;
time_t stamp;
DBC *cur;
rc = db->cursor(db, NULL, &cur, 0);
if (rc) {
- LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
return -1;
}
/* Rootinfo node ? */
if (cnid == 0) {
- memcpy(&stamp, (char *)data.data + 4, sizeof(time_t));
- memcpy(&lastid, (char *)data.data + 20, sizeof(cnid_t));
+ memcpy(&stamp, (char *)data.data + CNID_DEV_OFS, sizeof(time_t));
+ memcpy(&lastid, (char *)data.data + CNID_TYPE_OFS, CNID_TYPE_LEN);
lastid = ntohl(lastid);
+ memcpy(&version, (char *)data.data + CNID_DID_OFS, CNID_DID_LEN);
+ version = ntohl(version);
+
strftime(timebuf, sizeof(timebuf), "%b %d %Y %H:%M:%S", localtime(&stamp));
- printf("dbd stamp: 0x%08x (%s), next free CNID: %u\n", (unsigned int)stamp, timebuf, lastid + 1);
+ printf("CNID db version: %u, dbd stamp: 0x%08x (%s), next free CNID: %u\n",
+ version, (unsigned int)stamp, timebuf, lastid + 1);
} else {
/* dev */
memcpy(&dev, (char *)data.data + CNID_DEV_OFS, 8);
}
if (rc != DB_NOTFOUND) {
- LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
return -1;
}
rc = cur->c_close(cur);
if (rc) {
- LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
return -1;
}
printf("%u CNIDs in database. Max CNID: %u.\n", count, max);
db = dbd->db_table[DBIF_IDX_DEVINO].db;
rc = db->cursor(db, NULL, &cur, 0);
if (rc) {
- LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
return -1;
}
rc = cur->c_get(cur, &key, &data, DB_NEXT);
}
if (rc != DB_NOTFOUND) {
- LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
return -1;
}
rc = cur->c_close(cur);
if (rc) {
- LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
return -1;
}
printf("%u items\n", count);
db = dbd->db_table[DBIF_IDX_DIDNAME].db;
rc = db->cursor(db, NULL, &cur, 0);
if (rc) {
- LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
return -1;
}
rc = cur->c_get(cur, &key, &data, DB_NEXT);
}
if (rc != DB_NOTFOUND) {
- LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
return -1;
}
rc = cur->c_close(cur);
if (rc) {
- LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(rc));
return -1;
}
printf("%u items\n", count);
static DBT key = { 0 }, data = { 0 };
DB *db = dbd->db_table[DBIF_CNID].db;
- if (close && dbd->db_cur) {
- dbd->db_cur->close(dbd->db_cur);
- dbd->db_cur = NULL;
+ if (close) {
+ if (dbd->db_cur) {
+ dbd->db_cur->close(dbd->db_cur);
+ dbd->db_cur = NULL;
+ }
return 0;
}
/* An dbif_del will have closed our cursor too */
if ( ! dbd->db_cur ) {
- if (db->cursor(db, NULL, &dbd->db_cur, 0) != 0) {
- LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(errno));
+ if ((rc = db->cursor(db, NULL, &dbd->db_cur, 0)) != 0) {
+ LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(rc));
return -1;
}
flag = DB_SET_RANGE; /* This will seek to next cnid after the one just deleted */
}
if (rc != DB_NOTFOUND) {
- LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(errno));
+ LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(rc));
dbd->db_cur->close(dbd->db_cur);
dbd->db_cur = NULL;
return -1;
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