xref: /aosp_15_r20/hardware/interfaces/wifi/supplicant/1.0/ISupplicantP2pIface.hal (revision 4d7e907c777eeecc4c5bd7cf640a754fac206ff7)

/*
 * 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 [email protected];

import ISupplicantIface;
import ISupplicantP2pIfaceCallback;

/**
 * Interface exposed by the supplicant for each P2P mode network
 * interface (e.g p2p0) it controls.
 */
interface ISupplicantP2pIface extends ISupplicantIface {
  enum WpsProvisionMethod : uint32_t {
    /**
     * Push button method.
     */
    PBC,
    /**
     * Display pin method configuration - pin is generated and displayed on
     * device.
     */
    DISPLAY,
    /**
     * Keypad pin method configuration - pin is entered on device.
     */
    KEYPAD
  };

  /**
   * Use to specify a range of frequencies.
   * For example: 2412-2432,2462,5000-6000, etc.
   */
  struct FreqRange {
      uint32_t min;
      uint32_t max;
  };

  /**
   * Enum describing the modes of Miracast supported
   * via driver commands.
   */
  enum MiracastMode : uint8_t {
    DISABLED = 0,
    /**
     * Operating as source.
     */
    SOURCE = 1,
    /**
     * Operating as sink.
     */
    SINK = 2
  };

  /**
   * Register for callbacks from this interface.
   *
   * These callbacks are invoked for events that are specific to this interface.
   * Registration of multiple callback objects is supported. These objects must
   * be automatically deleted when the corresponding client process is dead or
   * if this interface is removed.
   *
   * @param callback An instance of the |ISupplicantP2pIfaceCallback| HIDL
   *        interface object.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  registerCallback(ISupplicantP2pIfaceCallback callback)
      generates (SupplicantStatus status);

  /**
   * Gets the MAC address of the device.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return deviceAddress MAC address of the device.
   */
  getDeviceAddress()
      generates (SupplicantStatus status, MacAddress deviceAddress);

  /**
   * Set the postfix to be used for P2P SSID's.
   *
   * @param postfix String to be appended to SSID.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  setSsidPostfix(vec<uint8_t> postfix) generates (SupplicantStatus status);

  /**
   * Set the Maximum idle time in seconds for P2P groups.
   * This value controls how long a P2P group is maintained after there
   * is no other members in the group. As a group owner, this means no
   * associated stations in the group. As a P2P client, this means no
   * group owner seen in scan results.
   *
   * @param groupIfName Group interface name to use.
   * @param timeoutInSec Timeout value in seconds.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  setGroupIdle(string groupIfName, uint32_t timeoutInSec)
      generates (SupplicantStatus status);

  /**
   * Turn on/off power save mode for the interface.
   *
   * @param groupIfName Group interface name to use.
   * @param enable Indicate if power save is to be turned on/off.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|,
   *         |SupplicantStatusCode.FAILURE_IFACE_DISABLED|
   */
  setPowerSave(string groupIfName, bool enable)
      generates (SupplicantStatus status);

  /**
   * Initiate a P2P service discovery with an optional timeout.
   *
   * @param timeoutInSec Max time to be spent is peforming discovery.
   *        Set to 0 to indefinely continue discovery untill and explicit
   *        |stopFind| is sent.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   *         |SupplicantStatusCode.FAILURE_IFACE_DISABLED|
   */
  find(uint32_t timeoutInSec) generates (SupplicantStatus status);

  /**
   * Stop an ongoing P2P service discovery.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   *         |SupplicantStatusCode.FAILURE_IFACE_DISABLED|
   */
  stopFind() generates (SupplicantStatus status);

  /**
   * Flush P2P peer table and state.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  flush() generates (SupplicantStatus status);

  /**
   * Start P2P group formation with a discovered P2P peer. This includes
   * optional group owner negotiation, group interface setup, provisioning,
   * and establishing data connection.
   *
   * @param peerAddress MAC address of the device to connect to.
   * @method provisionMethod Provisioning method to use.
   * @param preSelectedPin Pin to be used, if |provisionMethod| uses one of the
   *        preselected |PIN*| methods.
   * @param joinExistingGroup Indicates that this is a command to join an
   *        existing group as a client. It skips the group owner negotiation
   *        part. This must send a Provision Discovery Request message to the
   *        target group owner before associating for WPS provisioning.
   * @param persistent Used to request a persistent group to be formed.
   * @param goIntent Used to override the default Intent for this group owner
   *        negotiation (Values from 1-15). Refer to section 4.1.6 in
   *        Wi-Fi Peer-to-Peer (P2P) Technical Specification Version 1.7.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return generatedPin Pin generated, if |provisionMethod| uses one of the
   *         generated |PIN*| methods.
   */
  connect(MacAddress peerAddress,
          WpsProvisionMethod provisionMethod,
          string preSelectedPin,
          bool joinExistingGroup,
          bool persistent,
          uint32_t goIntent)
      generates (SupplicantStatus status, string generatedPin);

  /**
   * Cancel an ongoing P2P group formation and joining-a-group related
   * operation. This operation unauthorizes the specific peer device (if any
   * had been authorized to start group formation), stops P2P find (if in
   * progress), stops pending operations for join-a-group, and removes the
   * P2P group interface (if one was used) that is in the WPS provisioning
   * step. If the WPS provisioning step has been completed, the group is not
   * terminated.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_NOT_STARTED|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  cancelConnect() generates (SupplicantStatus status);

  /**
   * Send P2P provision discovery request to the specified peer. The
   * parameters for this command are the P2P device address of the peer and the
   * desired configuration method.
   *
   * @param peerAddress MAC address of the device to send discovery.
   * @method provisionMethod Provisioning method to use.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  provisionDiscovery(MacAddress peerAddress,
                     WpsProvisionMethod provisionMethod)
      generates (SupplicantStatus status);

  /**
   * Set up a P2P group owner manually (i.e., without group owner
   * negotiation with a specific peer). This is also known as autonomous
   * group owner. Optional |persistentNetworkId| may be used to specify
   * restart of a persistent group.
   *
   * @param persistent Used to request a persistent group to be formed.
   * @param persistentNetworkId Used to specify the restart of a persistent
   *        group. Set to UINT32_MAX for a non-persistent group.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  addGroup(bool persistent, SupplicantNetworkId persistentNetworkId)
      generates (SupplicantStatus status);

  /**
   * Terminate a P2P group. If a new virtual network interface was used for
   * the group, it must also be removed. The network interface name of the
   * group interface is used as a parameter for this command.
   *
   * @param groupIfName Group interface name to use.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  removeGroup(string groupIfName) generates (SupplicantStatus status);

  /**
   * Reject connection attempt from a peer (specified with a device
   * address). This is a mechanism to reject a pending group owner negotiation
   * with a peer and request to automatically block any further connection or
   * discovery of the peer.
   *
   * @param peerAddress MAC address of the device to reject.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   *         |SupplicantStatusCode.FAILURE_IFACE_DISABLED|
   */
  reject(MacAddress peerAddress) generates (SupplicantStatus status);

  /**
   * Invite a device to a persistent group.
   * If the peer device is the group owner of the persistent group, the peer
   * parameter is not needed. Otherwise it is used to specify which
   * device to invite. |goDeviceAddress| parameter may be used to override
   * the group owner device address for Invitation Request should it not be
   * known for some reason (this should not be needed in most cases).
   *
   * @param groupIfName Group interface name to use.
   * @param goDeviceAddress MAC address of the group owner device.
   * @param peerAddress MAC address of the device to invite.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  invite(string groupIfName, MacAddress goDeviceAddress, MacAddress peerAddress)
      generates (SupplicantStatus status);

  /**
   * Reinvoke a device from a persistent group.
   *
   * @param persistentNetworkId Used to specify the persistent group.
   * @param peerAddress MAC address of the device to reinvoke.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  reinvoke(SupplicantNetworkId persistentNetworkId, MacAddress peerAddress)
      generates (SupplicantStatus status);

  /**
   * Configure Extended Listen Timing.
   *
   * If enabled, listen state must be entered every |intervalInMillis| for at
   * least |periodInMillis|. Both values have acceptable range of 1-65535
   * (with interval obviously having to be larger than or equal to duration).
   * If the P2P module is not idle at the time the Extended Listen Timing
   * timeout occurs, the Listen State operation must be skipped.
   *
   * @param periodInMillis Period in milliseconds.
   * @param intervalInMillis Interval in milliseconds.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  configureExtListen(uint32_t periodInMillis,
                     uint32_t intervalInMillis)
      generates (SupplicantStatus status);

  /**
   * Set P2P Listen channel.
   *
   * When specifying a social channel on the 2.4 GHz band (1/6/11) there is no
   * need to specify the operating class since it defaults to 81. When
   * specifying a social channel on the 60 GHz band (2), specify the 60 GHz
   * operating class (180).
   *
   * @param channel Wifi channel. eg, 1, 6, 11.
   * @param operatingClass Operating Class indicates the channel set of the AP
   *        indicated by this BSSID
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  setListenChannel(uint32_t channel, uint32_t operatingClass)
      generates (SupplicantStatus status);

  /**
   * Set P2P disallowed frequency ranges.
   *
   * Specify ranges of frequencies that are disallowed for any p2p operations.

   * @param ranges List of ranges which needs to be disallowed.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  setDisallowedFrequencies(vec<FreqRange> ranges)
      generates (SupplicantStatus status);

  /**
   * Gets the operational SSID of the device.
   *
   * @param peerAddress MAC address of the peer.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return ssid SSID of the device
   */
  getSsid(MacAddress peerAddress)
      generates (SupplicantStatus status, Ssid ssid);

  /**
   * Gets the capability of the group which the device is a
   * member of.
   *
   * @param peerAddress MAC address of the peer.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return capabilityMask Combination of |P2pGroupCapabilityMask| values.
   */
  getGroupCapability(MacAddress peerAddress)
      generates (SupplicantStatus status,
                 bitfield<P2pGroupCapabilityMask> capabilities);

  /**
   * This command can be used to add a bonjour service.
   *
   * @param query Hex dump of the query data.
   * @param return Hex dump of the response data.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  addBonjourService(vec<uint8_t> query, vec<uint8_t> response)
      generates (SupplicantStatus status);

  /**
   * This command can be used to remove a bonjour service.
   *
   * @param query Hex dump of the query data.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_NOT_STARTED|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  removeBonjourService(vec<uint8_t> query) generates (SupplicantStatus status);

  /**
   * This command can be used to add a UPNP service.
   *
   * @param version Version to be used.
   * @package serviceName Service name to be used.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  addUpnpService(uint32_t version, string serviceName)
      generates (SupplicantStatus status);

  /**
   * This command can be used to remove a UPNP service.
   *
   * @param version Version to be used.
   * @package serviceName Service name to be used.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_NOT_STARTED|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  removeUpnpService(uint32_t version, string serviceName)
      generates (SupplicantStatus status);

  /**
   * This command can be used to flush all services from the
   * device.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  flushServices() generates (SupplicantStatus status);

  /**
   * Schedule a P2P service discovery request. The parameters for this command
   * are the device address of the peer device (or 00:00:00:00:00:00 for
   * wildcard query that is sent to every discovered P2P peer that supports
   * service discovery) and P2P Service Query TLV(s) as hexdump.
   *
   * @param peerAddress MAC address of the device to discover.
   * @param query Hex dump of the query data.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return identifier Identifier for the request. Can be used to cancel the
   *         request.
   */
  requestServiceDiscovery(MacAddress peerAddress, vec<uint8_t> query)
      generates (SupplicantStatus status, uint64_t identifier);

  /**
   * Cancel a previous service discovery request.
   *
   * @return identifier Identifier for the request to cancel.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_NOT_STARTED|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  cancelServiceDiscovery(uint64_t identifier)
      generates (SupplicantStatus status);

  /**
   * Send driver command to set Miracast mode.
   *
   * @param mode Mode of Miracast.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  setMiracastMode(MiracastMode mode)
      generates (SupplicantStatus status);

  /**
   * Initiate WPS Push Button setup.
   * The PBC operation requires that a button is also pressed at the
   * AP/Registrar at about the same time (2 minute window).
   *
   * @param groupIfName Group interface name to use.
   * @param bssid BSSID of the AP. Use zero'ed bssid to indicate wildcard.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  startWpsPbc(string groupIfName, Bssid bssid)
      generates (SupplicantStatus status);

  /**
   * Initiate WPS Pin Keypad setup.
   *
   * @param groupIfName Group interface name to use.
   * @param pin 8 digit pin to be used.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  startWpsPinKeypad(string groupIfName, string pin)
      generates (SupplicantStatus status);

  /**
   * Initiate WPS Pin Display setup.
   *
   * @param groupIfName Group interface name to use.
   * @param bssid BSSID of the AP. Use zero'ed bssid to indicate wildcard.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return generatedPin 8 digit pin generated.
   */
  startWpsPinDisplay(string groupIfName, Bssid bssid)
      generates (SupplicantStatus status, string generatedPin);

  /**
   * Cancel any ongoing WPS operations.
   *
   * @param groupIfName Group interface name to use.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|

   */
  cancelWps(string groupIfName) generates (SupplicantStatus status);

  /**
   * Enable/Disable Wifi Display.
   *
   * @param enable true to enable, false to disable.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  enableWfd(bool enable) generates (SupplicantStatus status);

  /**
   * Set Wifi Display device info.
   *
   * @param info WFD device info as described in section 5.1.2 of WFD technical
   *        specification v1.0.0.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  setWfdDeviceInfo(uint8_t[6] info) generates (SupplicantStatus status);

  /**
   * Creates a NFC handover request message.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return request Bytes representing the handover request as specified in
   *         section 3.1.1 of NFC Connection Handover 1.2 Technical
   *         Specification.
   */
  createNfcHandoverRequestMessage()
      generates (SupplicantStatus status, vec<uint8_t> request);

  /**
   * Creates a NFC handover select message.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   * @return select Bytes representing the handover select as specified in
   *         section 3.1.2 of NFC Connection Handover 1.2 Technical
   *         Specification.
   */
  createNfcHandoverSelectMessage()
      generates (SupplicantStatus status, vec<uint8_t> select);

  /**
   * Report the response of the NFC handover request.
   *
   * @param request Bytes representing the handover request as specified in
   *        section 3.1.1 of NFC Connection Handover 1.2 Technical
   *        Specification.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  reportNfcHandoverResponse(vec<uint8_t> request)
      generates (SupplicantStatus status);

  /**
   * Report the initiation of the NFC handover select.
   *
   * @param select Bytes representing the handover select as specified in
   *        section 3.1.2 of NFC Connection Handover 1.2 Technical
   *        Specification.
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  reportNfcHandoverInitiation(vec<uint8_t> select)
      generates (SupplicantStatus status);

  /**
   * Persist the current configuration to disk.
   *
   * @return status Status of the operation.
   *         Possible status codes:
   *         |SupplicantStatusCode.SUCCESS|,
   *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
   *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
   */
  saveConfig() generates (SupplicantStatus status);
};