Esempio n. 1
0
WERROR regdb_init(void)
{
	int32_t vers_id;
	WERROR werr;
	NTSTATUS status;

	if (regdb) {
		DEBUG(10, ("regdb_init: incrementing refcount (%d->%d)\n",
			   regdb_refcount, regdb_refcount+1));
		regdb_refcount++;
		return WERR_OK;
	}

	regdb = db_open(NULL, state_path("registry.tdb"), 0,
			REG_TDB_FLAGS, O_RDWR, 0600,
			DBWRAP_LOCK_ORDER_1);
	if (!regdb) {
		regdb = db_open(NULL, state_path("registry.tdb"), 0,
				REG_TDB_FLAGS, O_RDWR|O_CREAT, 0600,
				DBWRAP_LOCK_ORDER_1);
		if (!regdb) {
			werr = ntstatus_to_werror(map_nt_error_from_unix(errno));
			DEBUG(1,("regdb_init: Failed to open registry %s (%s)\n",
				state_path("registry.tdb"), strerror(errno) ));
			return werr;
		}

		werr = regdb_store_regdb_version(regdb, REGDB_CODE_VERSION);
		if (!W_ERROR_IS_OK(werr)) {
			DEBUG(1, ("regdb_init: Failed to store version: %s\n",
				  win_errstr(werr)));
			return werr;
		}

		DEBUG(10,("regdb_init: Successfully created registry tdb\n"));
	}

	regdb_refcount = 1;
	DEBUG(10, ("regdb_init: registry db openend. refcount reset (%d)\n",
		   regdb_refcount));

	status = dbwrap_fetch_int32(regdb, REGDB_VERSION_KEYNAME, &vers_id);
	if (!NT_STATUS_IS_OK(status)) {
		DEBUG(10, ("regdb_init: registry version uninitialized "
			   "(got %d), initializing to version %d\n",
			   vers_id, REGDB_VERSION_V1));

		/*
		 * There was a regdb format version prior to version 1
		 * which did not store a INFO/version key. The format
		 * of this version was identical to version 1 except for
		 * the lack of the sorted subkey cache records.
		 * Since these are disposable, we can safely assume version
		 * 1 if no INFO/version key is found and run the db through
		 * the whole chain of upgrade. If the database was not
		 * initialized, this does not harm. If it was the unversioned
		 * version ("0"), then it do the right thing with the records.
		 */
		werr = regdb_store_regdb_version(regdb, REGDB_VERSION_V1);
		if (!W_ERROR_IS_OK(werr)) {
			return werr;
		}
		vers_id = REGDB_VERSION_V1;
	}

	if (vers_id == REGDB_CODE_VERSION) {
		return WERR_OK;
	}

	if (vers_id > REGDB_CODE_VERSION || vers_id == 0) {
		DEBUG(0, ("regdb_init: unknown registry version %d "
			  "(code version = %d), refusing initialization\n",
			  vers_id, REGDB_CODE_VERSION));
		return WERR_CAN_NOT_COMPLETE;
	}

	if (dbwrap_transaction_start(regdb) != 0) {
		return WERR_REG_IO_FAILURE;
	}

	if (vers_id == REGDB_VERSION_V1) {
		DEBUG(10, ("regdb_init: upgrading registry from version %d "
			   "to %d\n", REGDB_VERSION_V1, REGDB_VERSION_V2));

		werr = regdb_upgrade_v1_to_v2(regdb);
		if (!W_ERROR_IS_OK(werr)) {
			dbwrap_transaction_cancel(regdb);
			return werr;
		}

		vers_id = REGDB_VERSION_V2;
	}

	if (vers_id == REGDB_VERSION_V2) {
		DEBUG(10, ("regdb_init: upgrading registry from version %d "
			   "to %d\n", REGDB_VERSION_V2, REGDB_VERSION_V3));

		werr = regdb_upgrade_v2_to_v3(regdb);
		if (!W_ERROR_IS_OK(werr)) {
			dbwrap_transaction_cancel(regdb);
			return werr;
		}

		vers_id = REGDB_VERSION_V3;
	}

	/* future upgrade code should go here */

	if (dbwrap_transaction_commit(regdb) != 0) {
		return WERR_REG_IO_FAILURE;
	}

	return WERR_OK;
}
Esempio n. 2
0
WERROR regdb_init(void)
{
	const char *vstring = "INFO/version";
	uint32 vers_id, expected_version;
	WERROR werr;

	if (regdb) {
		DEBUG(10, ("regdb_init: incrementing refcount (%d->%d)\n",
			   regdb_refcount, regdb_refcount+1));
		regdb_refcount++;
		return WERR_OK;
	}

	regdb = db_open(NULL, state_path("registry.tdb"), 0,
			      REG_TDB_FLAGS, O_RDWR, 0600);
	if (!regdb) {
		regdb = db_open(NULL, state_path("registry.tdb"), 0,
				      REG_TDB_FLAGS, O_RDWR|O_CREAT, 0600);
		if (!regdb) {
			werr = ntstatus_to_werror(map_nt_error_from_unix(errno));
			DEBUG(1,("regdb_init: Failed to open registry %s (%s)\n",
				state_path("registry.tdb"), strerror(errno) ));
			return werr;
		}

		DEBUG(10,("regdb_init: Successfully created registry tdb\n"));
	}

	regdb_refcount = 1;
	DEBUG(10, ("regdb_init: registry db openend. refcount reset (%d)\n",
		   regdb_refcount));

	expected_version = REGVER_V3;

	vers_id = dbwrap_fetch_int32(regdb, vstring);
	if (vers_id == -1) {
		DEBUG(10, ("regdb_init: registry version uninitialized "
			   "(got %d), initializing to version %d\n",
			   vers_id, expected_version));

		werr = regdb_store_regdb_version(regdb, expected_version);
		return werr;
	}

	if (vers_id > expected_version || vers_id == 0) {
		DEBUG(1, ("regdb_init: unknown registry version %d "
			  "(code version = %d), refusing initialization\n",
			  vers_id, expected_version));
		return WERR_CAN_NOT_COMPLETE;
	}

	if (regdb->transaction_start(regdb) != 0) {
		return WERR_REG_IO_FAILURE;
	}

	if (vers_id == REGVER_V1) {
		DEBUG(10, ("regdb_init: upgrading registry fromversion %d "
			   "to %d\n", REGVER_V1, REGVER_V2));

		werr = regdb_upgrade_v1_to_v2(regdb);
		if (!W_ERROR_IS_OK(werr)) {
			regdb->transaction_cancel(regdb);
			return werr;
		}

		vers_id = REGVER_V2;
	}

	if (vers_id == REGVER_V2) {
		DEBUG(10, ("regdb_init: upgrading registry from version %d "
			   "to %d\n", REGVER_V2, REGVER_V3));

		werr = regdb_upgrade_v2_to_v3(regdb);
		if (!W_ERROR_IS_OK(werr)) {
			regdb->transaction_cancel(regdb);
			return werr;
		}

		vers_id = REGVER_V3;
	}

	/* future upgrade code should go here */

	if (regdb->transaction_commit(regdb) != 0) {
		return WERR_REG_IO_FAILURE;
	}

	return WERR_OK;
}