static bool locking_init_internal(bool read_only)
{
	brl_init(read_only);

	if (lock_db)
		return True;

	lock_db = db_open(NULL, lock_path("locking.tdb"),
			  SMB_OPEN_DATABASE_TDB_HASH_SIZE,
			  TDB_DEFAULT|TDB_VOLATILE|TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH,
			  read_only?O_RDONLY:O_RDWR|O_CREAT, 0644,
			  DBWRAP_LOCK_ORDER_1, DBWRAP_FLAG_NONE);

	if (!lock_db) {
		DEBUG(0,("ERROR: Failed to initialise locking database\n"));
		return False;
	}

	if (!posix_locking_init(read_only))
		return False;

	dbwrap_watch_db(lock_db, server_messaging_context());

	return True;
}
Esempio n. 2
0
static NTSTATUS smbXsrv_session_table_init(struct smbXsrv_connection *conn,
					   uint32_t lowest_id,
					   uint32_t highest_id,
					   uint32_t max_sessions)
{
	struct smbXsrv_client *client = conn->client;
	struct smbXsrv_session_table *table;
	NTSTATUS status;
	struct tevent_req *subreq;
	uint64_t max_range;

	if (lowest_id > highest_id) {
		return NT_STATUS_INTERNAL_ERROR;
	}

	max_range = highest_id;
	max_range -= lowest_id;
	max_range += 1;

	if (max_sessions > max_range) {
		return NT_STATUS_INTERNAL_ERROR;
	}

	table = talloc_zero(client, struct smbXsrv_session_table);
	if (table == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	table->local.db_ctx = db_open_rbt(table);
	if (table->local.db_ctx == NULL) {
		TALLOC_FREE(table);
		return NT_STATUS_NO_MEMORY;
	}
	table->local.lowest_id = lowest_id;
	table->local.highest_id = highest_id;
	table->local.max_sessions = max_sessions;

	status = smbXsrv_session_global_init();
	if (!NT_STATUS_IS_OK(status)) {
		TALLOC_FREE(table);
		return status;
	}

	table->global.db_ctx = smbXsrv_session_global_db_ctx;

	dbwrap_watch_db(table->global.db_ctx, client->msg_ctx);

	subreq = messaging_read_send(table, client->ev_ctx, client->msg_ctx,
				     MSG_SMBXSRV_SESSION_CLOSE);
	if (subreq == NULL) {
		TALLOC_FREE(table);
		return NT_STATUS_NO_MEMORY;
	}
	tevent_req_set_callback(subreq, smbXsrv_session_close_loop, client);

	client->session_table = table;
	return NT_STATUS_OK;
}
Esempio n. 3
0
bool run_dbwrap_watch1(int dummy)
{
	struct tevent_context *ev = NULL;
	struct messaging_context *msg = NULL;
	struct db_context *db = NULL;
	const char *keystr = "key";
	TDB_DATA key = string_term_tdb_data(keystr);
	struct db_record *rec = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status;
	bool ret = false;

	ev = tevent_context_init(talloc_tos());
	if (ev == NULL) {
		fprintf(stderr, "tevent_context_init failed\n");
		goto fail;
	}
	msg = messaging_init(ev, ev);
	if (msg == NULL) {
		fprintf(stderr, "messaging_init failed\n");
		goto fail;
	}
	db = db_open(msg, "test_watch.tdb", 0, TDB_DEFAULT,
		     O_CREAT|O_RDWR, 0644, DBWRAP_LOCK_ORDER_1);
	if (db == NULL) {
		fprintf(stderr, "db_open failed: %s\n", strerror(errno));
		goto fail;
	}
	dbwrap_watch_db(db, msg);
	rec = dbwrap_fetch_locked(db, db, key);
	if (rec == NULL) {
		fprintf(stderr, "dbwrap_fetch_locked failed\n");
		goto fail;
	}
	req = dbwrap_record_watch_send(talloc_tos(), ev, rec, msg);
	if (req == NULL) {
		fprintf(stderr, "dbwrap_record_watch_send failed\n");
		goto fail;
	}
	TALLOC_FREE(rec);

	status = dbwrap_store_int32(db, keystr, 1);
	if (!NT_STATUS_IS_OK(status)) {
		fprintf(stderr, "dbwrap_store_int32 failed: %s\n",
			nt_errstr(status));
		goto fail;
	}

	if (!tevent_req_poll(req, ev)) {
		fprintf(stderr, "tevent_req_poll failed\n");
		goto fail;
	}

	status = dbwrap_record_watch_recv(req, talloc_tos(), &rec);
	if (!NT_STATUS_IS_OK(status)) {
		fprintf(stderr, "dbwrap_record_watch_recv failed: %s\n",
			nt_errstr(status));
		goto fail;
	}

	ret = true;
fail:
	TALLOC_FREE(req);
	TALLOC_FREE(rec);
	TALLOC_FREE(db);
	TALLOC_FREE(msg);
	TALLOC_FREE(ev);
	return ret;
}