/*
 * Copyright 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.hardware.wifi.supplicant@1.0;

import ISupplicantNetwork;

/**
 * Interface exposed by the supplicant for each network interface (e.g wlan0)
 * it controls.
 */
interface ISupplicantIface {
  /**
   * Size limits for some of the params used in this interface.
   */
  enum ParamSizeLimits : uint32_t {
      WPS_DEVICE_NAME_MAX_LEN = 32,
      WPS_MANUFACTURER_MAX_LEN = 64,
      WPS_MODEL_NAME_MAX_LEN = 32,
      WPS_MODEL_NUMBER_MAX_LEN = 32,
      WPS_SERIAL_NUMBER_MAX_LEN = 32
  };

  /**
   * Retrieves the name of the network interface.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return name Name of the network interface, e.g., wlan0
   */
  getName() generates (SupplicantStatus status, string name);

  /**
   * Retrieves the type of the network interface.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return type Type of the network interface, e.g., STA.
   */
  getType() generates (SupplicantStatus status, IfaceType type);

  /**
   * Add a new network to the interface.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return network HIDL interface object representing the new network if
   *         successful, null otherwise.
   */
  addNetwork()
      generates (SupplicantStatus status, ISupplicantNetwork network);

  /**
   * Remove a network from the interface.
   *
   * Use |ISupplicantNetwork.getId()| on the corresponding network HIDL
   * interface object to retrieve the ID.
   *
   * @param id Network ID allocated to the corresponding network.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_NETWORK_UNKNOWN|
   */
  removeNetwork(SupplicantNetworkId id)
      generates (SupplicantStatus status);

  /**
   * Gets a HIDL interface object for the network corresponding to the
   * |SupplicantNetworkId|.
   *
   * Use |ISupplicantNetwork.getId()| on the corresponding network HIDL
   * interface object to retrieve the ID.
   *
   * @param id Network ID allocated to the corresponding network.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_NETWORK_UNKNOWN|
   * @return network HIDL interface object representing the new network if
   *         successful, null otherwise.
   */
  getNetwork(SupplicantNetworkId id)
      generates (SupplicantStatus status, ISupplicantNetwork network);

  /**
   * Retrieve a list of all the network Id's controlled by the supplicant.
   *
   * The corresponding |ISupplicantNetwork| object for any network can be
   * retrieved using |getNetwork| method.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|
   * @return networkIds List of all network Id's controlled by the supplicant.
   */
  listNetworks()
      generates (SupplicantStatus status, vec<SupplicantNetworkId> networkIds);

  /**
   * Set the device name for WPS operations.
   * User-friendly description of device (up to |WPS_DEVICE_NAME_MAX_LEN|
   * octets encoded in UTF-8).
   *
   * @parm name Name to be set.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|
   */
  setWpsDeviceName(string name) generates (SupplicantStatus status);

  /**
   * Set the device type for WPS operations.
   *
   * @parm type Type of device. Refer to section B.1 of Wifi P2P
   *       Technical specification v1.2.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|
   */
  setWpsDeviceType(uint8_t[8] type) generates (SupplicantStatus status);

  /**
   * Set the manufacturer for WPS operations.
   * The manufacturer of the device (up to |WPS_MANUFACTURER_MAX_LEN| ASCII
   * characters).
   *
   * @parm manufacturer Manufacture to be set.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|
   */
  setWpsManufacturer(string manufacturer) generates (SupplicantStatus status);

  /**
   * Set the model name for WPS operations.
   * Model of the device (up to |WPS_MODEL_NAME_MAX_LEN| ASCII characters).
   *
   * @parm modelName Model name to be set.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|
   */
  setWpsModelName(string modelName) generates (SupplicantStatus status);

  /**
   * Set the model number for WPS operations.
   * Additional device description (up to |WPS_MODEL_NUMBER_MAX_LEN| ASCII
   * characters).
   *
   * @parm modelNumber Model number to be set.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|
   */
  setWpsModelNumber(string modelNumber) generates (SupplicantStatus status);

  /**
   * Set the serial number for WPS operations.
   * Serial number of the device (up to |WPS_SERIAL_NUMBER_MAX_LEN| characters)
   *
   * @parm serialNumber Serial number to be set.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|
   */
  setWpsSerialNumber(string serialNumber) generates (SupplicantStatus status);

  /**
   * Set the list of supported config methods for WPS operations.
   *
   * @param configMethods Mask of WPS configuration methods supported by the
   *        device.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|
   */
  setWpsConfigMethods(bitfield<WpsConfigMethods> configMethods)
      generates (SupplicantStatus status);
};