int bt_mesh_prov_auth()

in nimble/host/mesh/src/prov.c [191:277]

• 71 lines of code
• 17 McCabe index (conditional complexity)

int bt_mesh_prov_auth(bool is_provisioner, uint8_t method, uint8_t action, uint8_t size)
{
	bt_mesh_output_action_t output;
	bt_mesh_input_action_t input;
	int err;

	switch (method) {
	case AUTH_METHOD_NO_OOB:
		if (action || size) {
			return -EINVAL;
		}

		(void)memset(bt_mesh_prov_link.auth, 0, sizeof(bt_mesh_prov_link.auth));
		return 0;
	case AUTH_METHOD_STATIC:
		if (action || size) {
			return -EINVAL;
		}

		atomic_set_bit(bt_mesh_prov_link.flags, OOB_STATIC_KEY);

		return 0;

	case AUTH_METHOD_OUTPUT:
		output = output_action(action);
		if (is_provisioner) {
			if (output == BT_MESH_DISPLAY_STRING) {
				input = BT_MESH_ENTER_STRING;
				atomic_set_bit(bt_mesh_prov_link.flags, WAIT_STRING);
			} else {
				input = BT_MESH_ENTER_NUMBER;
				atomic_set_bit(bt_mesh_prov_link.flags, WAIT_NUMBER);
			}

			return bt_mesh_prov->input(input, size);
		}

		err = check_output_auth(output, size);
		if (err) {
			return err;
		}

		if (output == BT_MESH_DISPLAY_STRING) {
			char str[9];

			atomic_set_bit(bt_mesh_prov_link.flags, NOTIFY_INPUT_COMPLETE);
			get_auth_string(str, size);
			return bt_mesh_prov->output_string(str);
		}

		atomic_set_bit(bt_mesh_prov_link.flags, NOTIFY_INPUT_COMPLETE);
		return bt_mesh_prov->output_number(output,
						   get_auth_number(output, BT_MESH_NO_INPUT, size));
	case AUTH_METHOD_INPUT:
		input = input_action(action);
		if (!is_provisioner) {
			err = check_input_auth(input, size);
			if (err) {
				return err;
			}

			if (input == BT_MESH_ENTER_STRING) {
				atomic_set_bit(bt_mesh_prov_link.flags, WAIT_STRING);
			} else {
				atomic_set_bit(bt_mesh_prov_link.flags, WAIT_NUMBER);
			}

			return bt_mesh_prov->input(input, size);
		}

		if (input == BT_MESH_ENTER_STRING) {
			char str[9];

			atomic_set_bit(bt_mesh_prov_link.flags, NOTIFY_INPUT_COMPLETE);
			get_auth_string(str, size);
			return bt_mesh_prov->output_string(str);
		}

		atomic_set_bit(bt_mesh_prov_link.flags, NOTIFY_INPUT_COMPLETE);
		output = BT_MESH_DISPLAY_NUMBER;
		return bt_mesh_prov->output_number(output,
						   get_auth_number(BT_MESH_NO_OUTPUT, input, size));

	default:
		return -EINVAL;
	}
}