static void
bdbhpt_destroy(void *driverarg, void *dbdata)
{
UNUSED(driverarg);
bdbhpt_cleanup((bdbhpt_instance_t *) dbdata);
}
/*
* Shut down the backend
*/
void
dlz_destroy(void *dbdata) {
struct bdbhpt_instance *db = (struct bdbhpt_instance *)dbdata;
db->log(ISC_LOG_INFO,
"dlz_bdbhpt_dynamic (%s): shutting down", dlz_bdbhpt_dynamic_version);
bdbhpt_cleanup((bdbhpt_instance_t *) dbdata);
free (db);
}
/*
* Called to initialize the driver
*/
isc_result_t
dlz_create(const char *dlzname, unsigned int argc, char *argv[],
void **dbdata, ...)
{
isc_result_t result;
int bdbhptres;
int bdbFlags = 0;
bdbhpt_instance_t *db = NULL;
const char *helper_name;
va_list ap;
UNUSED(dlzname);
/* Allocate memory for our db structures and helper functions */
db = calloc(1, sizeof(struct bdbhpt_instance));
if (db == NULL)
return (ISC_R_NOMEMORY);
/* Fill in the helper functions */
va_start(ap, dbdata);
while ((helper_name = va_arg(ap, const char *)) != NULL)
b9_add_helper(db, helper_name, va_arg(ap, void*));
va_end(ap);
/* verify we have 4 arg's passed to the driver */
if (argc != 4) {
db->log(ISC_LOG_ERROR,
"bdbhpt_dynamic: please supply 3 command line args. "
"You supplied: %s", argc);
return (ISC_R_FAILURE);
}
switch((char) *argv[1]) {
/*
* Transactional mode. Highest safety - lowest speed.
*/
case 'T':
case 't':
bdbFlags = DB_INIT_MPOOL | DB_INIT_LOCK |
DB_INIT_LOG | DB_INIT_TXN;
db->log(ISC_LOG_INFO,
"bdbhpt_dynamic: using transactional mode.");
break;
/*
* Concurrent mode. Lower safety (no rollback) -
* higher speed.
*/
case 'C':
case 'c':
bdbFlags = DB_INIT_CDB | DB_INIT_MPOOL;
db->log(ISC_LOG_INFO,
"bdbhpt_dynamic: using concurrent mode.");
break;
/*
* Private mode. No inter-process communication & no locking.
* Lowest saftey - highest speed.
*/
case 'P':
case 'p':
bdbFlags = DB_PRIVATE | DB_INIT_MPOOL;
db->log(ISC_LOG_INFO,
"bdbhpt_dynamic: using private mode.");
break;
default:
db->log(ISC_LOG_ERROR,
"bdbhpt_dynamic: "
"operating mode must be set to P or C or T. "
"You specified '%s'", argv[1]);
return (ISC_R_FAILURE);
}
/*
* create bdbhpt environment
* Basically bdbhpt allocates and assigns memory to db->dbenv
*/
bdbhptres = db_env_create(&db->dbenv, 0);
if (bdbhptres != 0) {
db->log(ISC_LOG_ERROR,
"bdbhpt_dynamic: db environment could not be created. "
"BerkeleyDB error: %s", db_strerror(bdbhptres));
result = ISC_R_FAILURE;
goto init_cleanup;
}
/* open bdbhpt environment */
bdbhptres = db->dbenv->open(db->dbenv, argv[2],
bdbFlags | bdbhpt_threads | DB_CREATE, 0);
if (bdbhptres != 0) {
db->log(ISC_LOG_ERROR,
"bdbhpt_dynamic: "
"db environment at '%s' could not be opened. "
"BerkeleyDB error: %s",
argv[2], db_strerror(bdbhptres));
result = ISC_R_FAILURE;
goto init_cleanup;
}
/* open dlz_data database. */
result = bdbhpt_opendb(db->log, db->dbenv, DB_UNKNOWN, &db->data,
dlz_data, argv[3], DB_DUP | DB_DUPSORT);
if (result != ISC_R_SUCCESS)
goto init_cleanup;
/* open dlz_xfr database. */
result = bdbhpt_opendb(db->log, db->dbenv, DB_UNKNOWN, &db->xfr,
dlz_xfr, argv[3], DB_DUP | DB_DUPSORT);
if (result != ISC_R_SUCCESS)
goto init_cleanup;
/* open dlz_zone database. */
result = bdbhpt_opendb(db->log, db->dbenv, DB_UNKNOWN, &db->zone,
dlz_zone, argv[3], 0);
if (result != ISC_R_SUCCESS)
goto init_cleanup;
/* open dlz_client database. */
result = bdbhpt_opendb(db->log, db->dbenv, DB_UNKNOWN, &db->client,
dlz_client, argv[3], DB_DUP | DB_DUPSORT);
if (result != ISC_R_SUCCESS)
goto init_cleanup;
*dbdata = db;
db->log(ISC_LOG_INFO,
"bdbhpt_dynamic: version %s, started",
dlz_bdbhpt_dynamic_version);
return(ISC_R_SUCCESS);
init_cleanup:
bdbhpt_cleanup(db);
return result;
}
static isc_result_t
bdbhpt_create(const char *dlzname, unsigned int argc, char *argv[],
void *driverarg, void **dbdata)
{
isc_result_t result;
int bdbhptres;
int bdbFlags = 0;
bdbhpt_instance_t *db = NULL;
UNUSED(dlzname);
UNUSED(driverarg);
/* verify we have 4 arg's passed to the driver */
if (argc != 4) {
isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_DLZ, ISC_LOG_ERROR,
"bdbhpt driver requires at least "
"3 command line args.");
return (ISC_R_FAILURE);
}
switch((char) *argv[1]) {
/*
* Transactional mode. Highest safety - lowest speed.
*/
case 'T':
case 't':
bdbFlags = DB_INIT_MPOOL | DB_INIT_LOCK |
DB_INIT_LOG | DB_INIT_TXN;
isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_DLZ, ISC_LOG_DEBUG(1),
"bdbhpt driver using transactional mode.");
break;
/*
* Concurrent mode. Lower safety (no rollback) -
* higher speed.
*/
case 'C':
case 'c':
bdbFlags = DB_INIT_CDB | DB_INIT_MPOOL;
isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_DLZ, ISC_LOG_DEBUG(1),
"bdbhpt driver using concurrent mode.");
break;
/*
* Private mode. No inter-process communication & no locking.
* Lowest saftey - highest speed.
*/
case 'P':
case 'p':
bdbFlags = DB_PRIVATE | DB_INIT_MPOOL;
isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_DLZ, ISC_LOG_DEBUG(1),
"bdbhpt driver using private mode.");
break;
default:
isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_DLZ, ISC_LOG_ERROR,
"bdbhpt driver requires the operating mode "
"be set to P or C or T. You specified '%s'",
argv[1]);
return (ISC_R_FAILURE);
}
/* allocate and zero memory for driver structure */
db = isc_mem_get(ns_g_mctx, sizeof(bdbhpt_instance_t));
if (db == NULL) {
isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_DLZ, ISC_LOG_ERROR,
"Could not allocate memory for "
"database instance object.");
return (ISC_R_NOMEMORY);
}
memset(db, 0, sizeof(bdbhpt_instance_t));
/* attach to the memory context */
isc_mem_attach(ns_g_mctx, &db->mctx);
/*
* create bdbhpt environment
* Basically bdbhpt allocates and assigns memory to db->dbenv
*/
bdbhptres = db_env_create(&db->dbenv, 0);
if (bdbhptres != 0) {
isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_DLZ, ISC_LOG_ERROR,
"bdbhpt environment could not be created. "
"bdbhpt error: %s",
db_strerror(bdbhptres));
result = ISC_R_FAILURE;
goto init_cleanup;
}
/* open bdbhpt environment */
bdbhptres = db->dbenv->open(db->dbenv, argv[2],
bdbFlags | bdbhpt_threads | DB_CREATE, 0);
if (bdbhptres != 0) {
isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_DLZ, ISC_LOG_ERROR,
"bdbhpt environment at '%s' could not be opened."
" bdbhpt error: %s",
argv[2], db_strerror(bdbhptres));
result = ISC_R_FAILURE;
goto init_cleanup;
}
/* open dlz_data database. */
result = bdbhpt_opendb(db->dbenv, DB_UNKNOWN, &db->data,
dlz_data, argv[3], DB_DUP | DB_DUPSORT);
if (result != ISC_R_SUCCESS)
goto init_cleanup;
/* open dlz_xfr database. */
result = bdbhpt_opendb(db->dbenv, DB_UNKNOWN, &db->xfr,
dlz_xfr, argv[3], DB_DUP | DB_DUPSORT);
if (result != ISC_R_SUCCESS)
goto init_cleanup;
/* open dlz_zone database. */
result = bdbhpt_opendb(db->dbenv, DB_UNKNOWN, &db->zone,
dlz_zone, argv[3], 0);
if (result != ISC_R_SUCCESS)
goto init_cleanup;
/* open dlz_client database. */
result = bdbhpt_opendb(db->dbenv, DB_UNKNOWN, &db->client,
dlz_client, argv[3], DB_DUP | DB_DUPSORT);
if (result != ISC_R_SUCCESS)
goto init_cleanup;
*dbdata = db;
return(ISC_R_SUCCESS);
init_cleanup:
bdbhpt_cleanup(db);
return result;
}