diff --git a/wifi/1.6/IWifiChip.hal b/wifi/1.6/IWifiChip.hal
index 301bd82..b252a05 100644
--- a/wifi/1.6/IWifiChip.hal
+++ b/wifi/1.6/IWifiChip.hal
@@ -27,7 +27,6 @@
  * Interface that represents a chip that must be configured as a single unit.
  */
 interface IWifiChip extends @1.5::IWifiChip {
-
     /**
      * Create a RTTController instance.
      *
@@ -85,6 +84,6 @@
      *         represents whether particular mode is allowed on that channel.
      */
     getUsableChannels_1_6(WifiBand band, bitfield<WifiIfaceMode> ifaceModeMask,
-            bitfield<UsableChannelFilter> filterMask)
+        bitfield<UsableChannelFilter> filterMask)
         generates (WifiStatus status, vec<WifiUsableChannel> channels);
 };
diff --git a/wifi/1.6/IWifiNanIface.hal b/wifi/1.6/IWifiNanIface.hal
index b92a880..7ffd278 100644
--- a/wifi/1.6/IWifiNanIface.hal
+++ b/wifi/1.6/IWifiNanIface.hal
@@ -17,8 +17,15 @@
 package android.hardware.wifi@1.6;
 
 import @1.0::WifiStatus;
+import @1.0::CommandIdShort;
+import @1.4::NanConfigRequest;
+import @1.4::NanEnableRequest;
 import @1.5::IWifiNanIface;
 import IWifiNanIfaceEventCallback;
+import NanConfigRequestSupplemental;
+import NanInitiateDataPathRequest;
+import NanPublishRequest;
+import NanRespondToDataPathIndicationRequest;
 
 /**
  * Interface used to represent a single NAN (Neighbour Aware Network) iface.
@@ -40,4 +47,109 @@
      *         |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|
      */
     registerEventCallback_1_6(IWifiNanIfaceEventCallback callback) generates (WifiStatus status);
+
+    /**
+     * Initiate a data-path (NDP) setup operation: Initiator.
+     * Asynchronous response is with |IWifiNanIfaceEventCallback.notifyInitiateDataPathResponse|.
+     *
+     * Note: supersedes the @1.0::IWifiNanIface.respondToDataPathIndicationRequest() method which is
+     * deprecated as of HAL version 1.6.
+     *
+     * @param cmdId command Id to use for this invocation.
+     * @param msg Instance of |NanInitiateDataPathRequest|.
+     * @return status WifiStatus of the operation.
+     *         Possible status codes:
+     *         |WifiStatusCode.SUCCESS|,
+     *         |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
+     *         |WifiStatusCode.ERROR_INVALID_ARGS|,
+     *         |WifiStatusCode.ERROR_UNKNOWN|
+     */
+    initiateDataPathRequest_1_6(CommandIdShort cmdId, NanInitiateDataPathRequest msg)
+        generates (WifiStatus status);
+
+    /**
+     * Respond to a received data indication as part of a data-path (NDP) setup operation. An
+     * indication is received by the Responder from the Initiator.
+     * Asynchronous response is with
+     * |IWifiNanIfaceEventCallback.notifyRespondToDataPathIndicationResponse|.
+     *
+     * Note: supersedes the @1.0::IWifiNanIface.respondToDataPathIndicationRequest() method which is
+     * deprecated as of HAL version 1.6.
+     *
+     * @param cmdId command Id to use for this invocation.
+     * @param msg Instance of |NanRespondToDataPathIndicationRequest|.
+     * @return status WifiStatus of the operation.
+     *         Possible status codes:
+     *         |WifiStatusCode.SUCCESS|,
+     *         |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
+     *         |WifiStatusCode.ERROR_INVALID_ARGS|,
+     *         |WifiStatusCode.ERROR_UNKNOWN|
+     */
+    respondToDataPathIndicationRequest_1_6(CommandIdShort cmdId,
+        NanRespondToDataPathIndicationRequest msg) generates (WifiStatus status);
+
+    /**
+     * Enable NAN: configures and activates NAN clustering (does not start
+     * a discovery session or set up data-interfaces or data-paths). Use the
+     * |IWifiNanIface.configureRequest| method to change the configuration of an already enabled
+     * NAN interface.
+     * Asynchronous response is with |IWifiNanIfaceEventCallback.notifyEnableResponse|.
+     *
+     * Note: supersedes the @1.5::IWifiNanIface.enableRequest() method which is deprecated as of
+     * HAL version 1.6.
+     *
+     * @param cmdId command Id to use for this invocation.
+     * @param msg1 Instance of |NanEnableRequest|.
+     * @param msg2 Instance of |NanConfigRequestSupplemental|.
+     * @return status WifiStatus of the operation.
+     *         Possible status codes:
+     *         |WifiStatusCode.SUCCESS|,
+     *         |WifiStatusCode.ERROR_NOT_SUPPORTED|,
+     *         |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
+     *         |WifiStatusCode.ERROR_INVALID_ARGS|,
+     *         |WifiStatusCode.ERROR_UNKNOWN|
+     */
+    enableRequest_1_6(CommandIdShort cmdId, NanEnableRequest msg1,
+        NanConfigRequestSupplemental msg2) generates (WifiStatus status);
+
+    /**
+     * Configure NAN: configures an existing NAN functionality (i.e. assumes
+     * |IWifiNanIface.enableRequest| already submitted and succeeded).
+     * Asynchronous response is with |IWifiNanIfaceEventCallback.notifyConfigResponse|.
+     *
+     * Note: supersedes the @1.5::IWifiNanIface.configRequest() method which is deprecated as of
+     * HAL version 1.6.
+     *
+     * @param cmdId command Id to use for this invocation.
+     * @param msg1 Instance of |NanConfigRequest|.
+     * @param msg2 Instance of |NanConfigRequestSupplemental|.
+     * @return status WifiStatus of the operation.
+     *         Possible status codes:
+     *         |WifiStatusCode.SUCCESS|,
+     *         |WifiStatusCode.ERROR_NOT_SUPPORTED|,
+     *         |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
+     *         |WifiStatusCode.ERROR_INVALID_ARGS|,
+     *         |WifiStatusCode.ERROR_UNKNOWN|
+     */
+    configRequest_1_6(CommandIdShort cmdId, NanConfigRequest msg1,
+        NanConfigRequestSupplemental msg2) generates (WifiStatus status);
+
+    /**
+     * Publish request to start advertising a discovery service.
+     * Asynchronous response is with |IWifiNanIfaceEventCallback.notifyStartPublishResponse|.
+     *
+     * Note: supersedes the @1.0::IWifiNanIface.startPublishRequest() method which is deprecated as
+     * of HAL version 1.6.
+     *
+     * @param cmdId command Id to use for this invocation.
+     * @param msg Instance of |NanPublishRequest|.
+     * @return status WifiStatus of the operation.
+     *         Possible status codes:
+     *         |WifiStatusCode.SUCCESS|,
+     *         |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
+     *         |WifiStatusCode.ERROR_INVALID_ARGS|,
+     *         |WifiStatusCode.ERROR_UNKNOWN|
+     */
+    startPublishRequest_1_6(CommandIdShort cmdId, NanPublishRequest msg)
+        generates (WifiStatus status);
 };
diff --git a/wifi/1.6/IWifiNanIfaceEventCallback.hal b/wifi/1.6/IWifiNanIfaceEventCallback.hal
index 05b8ddf..f19f900 100644
--- a/wifi/1.6/IWifiNanIfaceEventCallback.hal
+++ b/wifi/1.6/IWifiNanIfaceEventCallback.hal
@@ -45,4 +45,30 @@
      * @param event: NanDataPathScheduleUpdateInd containing event details.
      */
     oneway eventDataPathScheduleUpdate_1_6(NanDataPathScheduleUpdateInd event);
+
+    /**
+     * Asynchronous callback indicating that a match has occurred: i.e. a service has been
+     * discovered.
+     *
+     * Note: supersedes the @1.0::IWifiNanIfaceEventCallback.eventMatch(NanMatchInd event) method
+     * which is deprecated as of HAL version 1.6.
+     *
+     * @param event: NanMatchInd containing event details.
+     */
+    oneway eventMatch_1_6(NanMatchInd event);
+
+    /**
+     * Asynchronous callback invoked in response to a capability request
+     * |IWifiNanIface.getCapabilitiesRequest|.
+     *
+     * Note: supersedes the @1.5::IWifiNanIfaceEventCallback.notifyCapabilitiesResponse() method
+     * which is deprecated as of HAL version 1.6.
+     *
+     * @param cmdId command Id corresponding to the original request.
+     * @param status WifiNanStatus of the operation. Possible status codes are:
+     *        |NanStatusType.SUCCESS|
+     * @param capabilities Capability data.
+     */
+    oneway notifyCapabilitiesResponse_1_6(CommandIdShort id, WifiNanStatus status,
+        NanCapabilities capabilities);
 };
diff --git a/wifi/1.6/IWifiRttController.hal b/wifi/1.6/IWifiRttController.hal
index 0db1d2c..a08f7e4 100644
--- a/wifi/1.6/IWifiRttController.hal
+++ b/wifi/1.6/IWifiRttController.hal
@@ -20,6 +20,7 @@
 import @1.0::WifiStatus;
 import @1.4::IWifiRttController;
 import IWifiRttControllerEventCallback;
+
 /**
  * Interface used to perform RTT(Round trip time) operations.
  */
diff --git a/wifi/1.6/default/hidl_struct_util.cpp b/wifi/1.6/default/hidl_struct_util.cpp
index 2a6b131..eeea6ef 100644
--- a/wifi/1.6/default/hidl_struct_util.cpp
+++ b/wifi/1.6/default/hidl_struct_util.cpp
@@ -26,7 +26,7 @@
 namespace implementation {
 namespace hidl_struct_util {
 
-using V1_5::NanConfigRequestSupplemental;
+using V1_6::NanConfigRequestSupplemental;
 
 WifiChannelWidthInMhz convertLegacyWifiChannelWidthToHidl(legacy_hal::wifi_channel_width type);
 
@@ -1363,11 +1363,11 @@
     return true;
 }
 
-bool convertHidlNanEnableRequest_1_4ToLegacy(const V1_4::NanEnableRequest& hidl_request1,
+bool convertHidlNanEnableRequest_1_6ToLegacy(const V1_4::NanEnableRequest& hidl_request1,
                                              const NanConfigRequestSupplemental& hidl_request2,
                                              legacy_hal::NanEnableRequest* legacy_request) {
     if (!legacy_request) {
-        LOG(ERROR) << "convertHidlNanEnableRequest_1_4ToLegacy: null legacy_request";
+        LOG(ERROR) << "convertHidlNanEnableRequest_1_6ToLegacy: null legacy_request";
         return false;
     }
 
@@ -1377,57 +1377,57 @@
     }
 
     legacy_request->config_discovery_beacon_int = 1;
-    legacy_request->discovery_beacon_interval = hidl_request2.V1_2.discoveryBeaconIntervalMs;
+    legacy_request->discovery_beacon_interval = hidl_request2.V1_5.V1_2.discoveryBeaconIntervalMs;
     legacy_request->config_nss = 1;
-    legacy_request->nss = hidl_request2.V1_2.numberOfSpatialStreamsInDiscovery;
+    legacy_request->nss = hidl_request2.V1_5.V1_2.numberOfSpatialStreamsInDiscovery;
     legacy_request->config_dw_early_termination = 1;
     legacy_request->enable_dw_termination =
-            hidl_request2.V1_2.enableDiscoveryWindowEarlyTermination;
+            hidl_request2.V1_5.V1_2.enableDiscoveryWindowEarlyTermination;
     legacy_request->config_enable_ranging = 1;
-    legacy_request->enable_ranging = hidl_request2.V1_2.enableRanging;
-
-    return true;
-}
-
-bool convertHidlNanEnableRequest_1_5ToLegacy(const V1_4::NanEnableRequest& hidl_request1,
-                                             const NanConfigRequestSupplemental& hidl_request2,
-                                             legacy_hal::NanEnableRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR) << "convertHidlNanEnableRequest_1_5ToLegacy: null legacy_request";
-        return false;
-    }
-
-    *legacy_request = {};
-    if (!convertHidlNanEnableRequest_1_4ToLegacy(hidl_request1, hidl_request2, legacy_request)) {
-        return false;
-    }
+    legacy_request->enable_ranging = hidl_request2.V1_5.V1_2.enableRanging;
 
     legacy_request->config_enable_instant_mode = 1;
-    legacy_request->enable_instant_mode = hidl_request2.enableInstantCommunicationMode;
+    legacy_request->enable_instant_mode = hidl_request2.V1_5.enableInstantCommunicationMode;
+    legacy_request->config_instant_mode_channel = 1;
+    legacy_request->instant_mode_channel = hidl_request2.instantModeChannel;
 
     return true;
 }
 
-bool convertHidlNanConfigRequest_1_5ToLegacy(const V1_4::NanConfigRequest& hidl_request1,
+bool convertHidlNanConfigRequest_1_6ToLegacy(const V1_4::NanConfigRequest& hidl_request1,
                                              const NanConfigRequestSupplemental& hidl_request2,
                                              legacy_hal::NanConfigRequest* legacy_request) {
     if (!legacy_request) {
-        LOG(ERROR) << "convertHidlNanConfigRequest_1_5ToLegacy: null legacy_request";
+        LOG(ERROR) << "convertHidlNanConfigRequest_1_6ToLegacy: null legacy_request";
         return false;
     }
 
     *legacy_request = {};
-    if (!convertHidlNanConfigRequest_1_4ToLegacy(hidl_request1, hidl_request2, legacy_request)) {
+    if (!convertHidlNanConfigRequestToLegacy(hidl_request1, legacy_request)) {
         return false;
     }
 
+    legacy_request->config_discovery_beacon_int = 1;
+    legacy_request->discovery_beacon_interval = hidl_request2.V1_5.V1_2.discoveryBeaconIntervalMs;
+    legacy_request->config_nss = 1;
+    legacy_request->nss = hidl_request2.V1_5.V1_2.numberOfSpatialStreamsInDiscovery;
+    legacy_request->config_dw_early_termination = 1;
+    legacy_request->enable_dw_termination =
+            hidl_request2.V1_5.V1_2.enableDiscoveryWindowEarlyTermination;
+    legacy_request->config_enable_ranging = 1;
+    legacy_request->enable_ranging = hidl_request2.V1_5.V1_2.enableRanging;
+
+    return true;
+
     legacy_request->config_enable_instant_mode = 1;
-    legacy_request->enable_instant_mode = hidl_request2.enableInstantCommunicationMode;
+    legacy_request->enable_instant_mode = hidl_request2.V1_5.enableInstantCommunicationMode;
+    legacy_request->config_instant_mode_channel = 1;
+    legacy_request->instant_mode_channel = hidl_request2.instantModeChannel;
 
     return true;
 }
 
-bool convertHidlNanPublishRequestToLegacy(const NanPublishRequest& hidl_request,
+bool convertHidlNanPublishRequestToLegacy(const V1_6::NanPublishRequest& hidl_request,
                                           legacy_hal::NanPublishRequest* legacy_request) {
     if (!legacy_request) {
         LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: null legacy_request";
@@ -1494,6 +1494,15 @@
             hidl_request.baseConfigs.disableFollowupReceivedIndication ? 0x4 : 0x0;
     legacy_request->recv_indication_cfg |= 0x8;
     legacy_request->cipher_type = (unsigned int)hidl_request.baseConfigs.securityConfig.cipherType;
+
+    legacy_request->scid_len = hidl_request.baseConfigs.securityConfig.scid.size();
+    if (legacy_request->scid_len > NAN_MAX_SCID_BUF_LEN) {
+        LOG(ERROR) << "convertHidlNanPublishRequestToLegacy: scid_len too large";
+        return false;
+    }
+    memcpy(legacy_request->scid, hidl_request.baseConfigs.securityConfig.scid.data(),
+           legacy_request->scid_len);
+
     if (hidl_request.baseConfigs.securityConfig.securityType == NanDataPathSecurityType::PMK) {
         legacy_request->key_info.key_type = legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
         legacy_request->key_info.body.pmk_info.pmk_len =
@@ -1531,6 +1540,7 @@
             (hidl_request.baseConfigs.securityConfig.securityType != NanDataPathSecurityType::OPEN)
                     ? legacy_hal::NAN_DP_CONFIG_SECURITY
                     : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
+
     legacy_request->sdea_params.ranging_state = hidl_request.baseConfigs.rangingRequired
                                                         ? legacy_hal::NAN_RANGING_ENABLE
                                                         : legacy_hal::NAN_RANGING_DISABLE;
@@ -1554,7 +1564,7 @@
     return true;
 }
 
-bool convertHidlNanSubscribeRequestToLegacy(const NanSubscribeRequest& hidl_request,
+bool convertHidlNanSubscribeRequestToLegacy(const V1_0::NanSubscribeRequest& hidl_request,
                                             legacy_hal::NanSubscribeRequest* legacy_request) {
     if (!legacy_request) {
         LOG(ERROR) << "convertHidlNanSubscribeRequestToLegacy: legacy_request is null";
@@ -1835,35 +1845,8 @@
     return true;
 }
 
-bool convertHidlNanConfigRequest_1_4ToLegacy(const V1_4::NanConfigRequest& hidl_request1,
-                                             const NanConfigRequestSupplemental& hidl_request2,
-                                             legacy_hal::NanConfigRequest* legacy_request) {
-    if (!legacy_request) {
-        LOG(ERROR) << "convertHidlNanConfigRequest_1_4ToLegacy: legacy_request "
-                      "is null";
-        return false;
-    }
-
-    *legacy_request = {};
-    if (!convertHidlNanConfigRequestToLegacy(hidl_request1, legacy_request)) {
-        return false;
-    }
-
-    legacy_request->config_discovery_beacon_int = 1;
-    legacy_request->discovery_beacon_interval = hidl_request2.V1_2.discoveryBeaconIntervalMs;
-    legacy_request->config_nss = 1;
-    legacy_request->nss = hidl_request2.V1_2.numberOfSpatialStreamsInDiscovery;
-    legacy_request->config_dw_early_termination = 1;
-    legacy_request->enable_dw_termination =
-            hidl_request2.V1_2.enableDiscoveryWindowEarlyTermination;
-    legacy_request->config_enable_ranging = 1;
-    legacy_request->enable_ranging = hidl_request2.V1_2.enableRanging;
-
-    return true;
-}
-
 bool convertHidlNanDataPathInitiatorRequestToLegacy(
-        const NanInitiateDataPathRequest& hidl_request,
+        const V1_0::NanInitiateDataPathRequest& hidl_request,
         legacy_hal::NanDataPathInitiatorRequest* legacy_request) {
     if (!legacy_request) {
         LOG(ERROR) << "convertHidlNanDataPathInitiatorRequestToLegacy: "
@@ -1939,8 +1922,91 @@
     return true;
 }
 
+bool convertHidlNanDataPathInitiatorRequest_1_6ToLegacy(
+        const V1_6::NanInitiateDataPathRequest& hidl_request,
+        legacy_hal::NanDataPathInitiatorRequest* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequest_1_6ToLegacy: "
+                      "legacy_request is null";
+        return false;
+    }
+    *legacy_request = {};
+
+    legacy_request->requestor_instance_id = hidl_request.peerId;
+    memcpy(legacy_request->peer_disc_mac_addr, hidl_request.peerDiscMacAddr.data(), 6);
+    legacy_request->channel_request_type =
+            convertHidlNanDataPathChannelCfgToLegacy(hidl_request.channelRequestType);
+    legacy_request->channel = hidl_request.channel;
+    if (strnlen(hidl_request.ifaceName.c_str(), IFNAMSIZ + 1) == IFNAMSIZ + 1) {
+        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequest_1_6ToLegacy: "
+                      "ifaceName too long";
+        return false;
+    }
+    strncpy(legacy_request->ndp_iface, hidl_request.ifaceName.c_str(), IFNAMSIZ + 1);
+    legacy_request->ndp_cfg.security_cfg =
+            (hidl_request.securityConfig.securityType != NanDataPathSecurityType::OPEN)
+                    ? legacy_hal::NAN_DP_CONFIG_SECURITY
+                    : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
+    legacy_request->app_info.ndp_app_info_len = hidl_request.appInfo.size();
+    if (legacy_request->app_info.ndp_app_info_len > NAN_DP_MAX_APP_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequest_1_6ToLegacy: "
+                      "ndp_app_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->app_info.ndp_app_info, hidl_request.appInfo.data(),
+           legacy_request->app_info.ndp_app_info_len);
+    legacy_request->cipher_type = (unsigned int)hidl_request.securityConfig.cipherType;
+    if (hidl_request.securityConfig.securityType == NanDataPathSecurityType::PMK) {
+        legacy_request->key_info.key_type = legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
+        legacy_request->key_info.body.pmk_info.pmk_len = hidl_request.securityConfig.pmk.size();
+        if (legacy_request->key_info.body.pmk_info.pmk_len != NAN_PMK_INFO_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathInitiatorRequest_1_6ToLegacy: "
+                          "invalid pmk_len";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.pmk_info.pmk, hidl_request.securityConfig.pmk.data(),
+               legacy_request->key_info.body.pmk_info.pmk_len);
+    }
+    if (hidl_request.securityConfig.securityType == NanDataPathSecurityType::PASSPHRASE) {
+        legacy_request->key_info.key_type = legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
+        legacy_request->key_info.body.passphrase_info.passphrase_len =
+                hidl_request.securityConfig.passphrase.size();
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
+            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathInitiatorRequest_1_6ToLegacy: "
+                          "passphrase_len too small";
+            return false;
+        }
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
+            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathInitiatorRequest_1_6ToLegacy: "
+                          "passphrase_len too large";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
+               hidl_request.securityConfig.passphrase.data(),
+               legacy_request->key_info.body.passphrase_info.passphrase_len);
+    }
+    legacy_request->service_name_len = hidl_request.serviceNameOutOfBand.size();
+    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequest_1_6ToLegacy: "
+                      "service_name_len too large";
+        return false;
+    }
+    memcpy(legacy_request->service_name, hidl_request.serviceNameOutOfBand.data(),
+           legacy_request->service_name_len);
+    legacy_request->scid_len = hidl_request.securityConfig.scid.size();
+    if (legacy_request->scid_len > NAN_MAX_SCID_BUF_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathInitiatorRequest_1_6ToLegacy: scid_len too large";
+        return false;
+    }
+    memcpy(legacy_request->scid, hidl_request.securityConfig.scid.data(), legacy_request->scid_len);
+
+    return true;
+}
+
 bool convertHidlNanDataPathIndicationResponseToLegacy(
-        const NanRespondToDataPathIndicationRequest& hidl_request,
+        const V1_0::NanRespondToDataPathIndicationRequest& hidl_request,
         legacy_hal::NanDataPathIndicationResponse* legacy_request) {
     if (!legacy_request) {
         LOG(ERROR) << "convertHidlNanDataPathIndicationResponseToLegacy: "
@@ -2014,6 +2080,87 @@
     return true;
 }
 
+bool convertHidlNanDataPathIndicationResponse_1_6ToLegacy(
+        const V1_6::NanRespondToDataPathIndicationRequest& hidl_request,
+        legacy_hal::NanDataPathIndicationResponse* legacy_request) {
+    if (!legacy_request) {
+        LOG(ERROR) << "convertHidlNanDataPathIndicationResponse_1_6ToLegacy: "
+                      "legacy_request is null";
+        return false;
+    }
+    *legacy_request = {};
+
+    legacy_request->rsp_code = hidl_request.acceptRequest ? legacy_hal::NAN_DP_REQUEST_ACCEPT
+                                                          : legacy_hal::NAN_DP_REQUEST_REJECT;
+    legacy_request->ndp_instance_id = hidl_request.ndpInstanceId;
+    if (strnlen(hidl_request.ifaceName.c_str(), IFNAMSIZ + 1) == IFNAMSIZ + 1) {
+        LOG(ERROR) << "convertHidlNanDataPathIndicationResponse_1_6ToLegacy: "
+                      "ifaceName too long";
+        return false;
+    }
+    strncpy(legacy_request->ndp_iface, hidl_request.ifaceName.c_str(), IFNAMSIZ + 1);
+    legacy_request->ndp_cfg.security_cfg =
+            (hidl_request.securityConfig.securityType != NanDataPathSecurityType::OPEN)
+                    ? legacy_hal::NAN_DP_CONFIG_SECURITY
+                    : legacy_hal::NAN_DP_CONFIG_NO_SECURITY;
+    legacy_request->app_info.ndp_app_info_len = hidl_request.appInfo.size();
+    if (legacy_request->app_info.ndp_app_info_len > NAN_DP_MAX_APP_INFO_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathIndicationResponse_1_6ToLegacy: "
+                      "ndp_app_info_len too large";
+        return false;
+    }
+    memcpy(legacy_request->app_info.ndp_app_info, hidl_request.appInfo.data(),
+           legacy_request->app_info.ndp_app_info_len);
+    legacy_request->cipher_type = (unsigned int)hidl_request.securityConfig.cipherType;
+    if (hidl_request.securityConfig.securityType == NanDataPathSecurityType::PMK) {
+        legacy_request->key_info.key_type = legacy_hal::NAN_SECURITY_KEY_INPUT_PMK;
+        legacy_request->key_info.body.pmk_info.pmk_len = hidl_request.securityConfig.pmk.size();
+        if (legacy_request->key_info.body.pmk_info.pmk_len != NAN_PMK_INFO_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathIndicationResponse_1_6ToLegacy: "
+                          "invalid pmk_len";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.pmk_info.pmk, hidl_request.securityConfig.pmk.data(),
+               legacy_request->key_info.body.pmk_info.pmk_len);
+    }
+    if (hidl_request.securityConfig.securityType == NanDataPathSecurityType::PASSPHRASE) {
+        legacy_request->key_info.key_type = legacy_hal::NAN_SECURITY_KEY_INPUT_PASSPHRASE;
+        legacy_request->key_info.body.passphrase_info.passphrase_len =
+                hidl_request.securityConfig.passphrase.size();
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len <
+            NAN_SECURITY_MIN_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathIndicationResponse_1_6ToLegacy: "
+                          "passphrase_len too small";
+            return false;
+        }
+        if (legacy_request->key_info.body.passphrase_info.passphrase_len >
+            NAN_SECURITY_MAX_PASSPHRASE_LEN) {
+            LOG(ERROR) << "convertHidlNanDataPathIndicationResponse_1_6ToLegacy: "
+                          "passphrase_len too large";
+            return false;
+        }
+        memcpy(legacy_request->key_info.body.passphrase_info.passphrase,
+               hidl_request.securityConfig.passphrase.data(),
+               legacy_request->key_info.body.passphrase_info.passphrase_len);
+    }
+    legacy_request->service_name_len = hidl_request.serviceNameOutOfBand.size();
+    if (legacy_request->service_name_len > NAN_MAX_SERVICE_NAME_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathIndicationResponse_1_6ToLegacy: "
+                      "service_name_len too large";
+        return false;
+    }
+    memcpy(legacy_request->service_name, hidl_request.serviceNameOutOfBand.data(),
+           legacy_request->service_name_len);
+    legacy_request->scid_len = hidl_request.securityConfig.scid.size();
+    if (legacy_request->scid_len > NAN_MAX_SCID_BUF_LEN) {
+        LOG(ERROR) << "convertHidlNanDataPathIndicationResponse_1_6ToLegacy: scid_len too large";
+        return false;
+    }
+    memcpy(legacy_request->scid, hidl_request.securityConfig.scid.data(), legacy_request->scid_len);
+
+    return true;
+}
+
 bool convertLegacyNanResponseHeaderToHidl(const legacy_hal::NanResponseMsg& legacy_response,
                                           WifiNanStatus* wifiNanStatus) {
     if (!wifiNanStatus) {
@@ -2028,7 +2175,7 @@
 }
 
 bool convertLegacyNanCapabilitiesResponseToHidl(const legacy_hal::NanCapabilities& legacy_response,
-                                                V1_5::NanCapabilities* hidl_response) {
+                                                V1_6::NanCapabilities* hidl_response) {
     if (!hidl_response) {
         LOG(ERROR) << "convertLegacyNanCapabilitiesResponseToHidl: "
                       "hidl_response is null";
@@ -2036,29 +2183,29 @@
     }
     *hidl_response = {};
 
-    hidl_response->V1_0.maxConcurrentClusters = legacy_response.max_concurrent_nan_clusters;
-    hidl_response->V1_0.maxPublishes = legacy_response.max_publishes;
-    hidl_response->V1_0.maxSubscribes = legacy_response.max_subscribes;
-    hidl_response->V1_0.maxServiceNameLen = legacy_response.max_service_name_len;
-    hidl_response->V1_0.maxMatchFilterLen = legacy_response.max_match_filter_len;
-    hidl_response->V1_0.maxTotalMatchFilterLen = legacy_response.max_total_match_filter_len;
-    hidl_response->V1_0.maxServiceSpecificInfoLen = legacy_response.max_service_specific_info_len;
-    hidl_response->V1_0.maxExtendedServiceSpecificInfoLen =
+    hidl_response->maxConcurrentClusters = legacy_response.max_concurrent_nan_clusters;
+    hidl_response->maxPublishes = legacy_response.max_publishes;
+    hidl_response->maxSubscribes = legacy_response.max_subscribes;
+    hidl_response->maxServiceNameLen = legacy_response.max_service_name_len;
+    hidl_response->maxMatchFilterLen = legacy_response.max_match_filter_len;
+    hidl_response->maxTotalMatchFilterLen = legacy_response.max_total_match_filter_len;
+    hidl_response->maxServiceSpecificInfoLen = legacy_response.max_service_specific_info_len;
+    hidl_response->maxExtendedServiceSpecificInfoLen =
             legacy_response.max_sdea_service_specific_info_len;
-    hidl_response->V1_0.maxNdiInterfaces = legacy_response.max_ndi_interfaces;
-    hidl_response->V1_0.maxNdpSessions = legacy_response.max_ndp_sessions;
-    hidl_response->V1_0.maxAppInfoLen = legacy_response.max_app_info_len;
-    hidl_response->V1_0.maxQueuedTransmitFollowupMsgs =
+    hidl_response->maxNdiInterfaces = legacy_response.max_ndi_interfaces;
+    hidl_response->maxNdpSessions = legacy_response.max_ndp_sessions;
+    hidl_response->maxAppInfoLen = legacy_response.max_app_info_len;
+    hidl_response->maxQueuedTransmitFollowupMsgs =
             legacy_response.max_queued_transmit_followup_msgs;
-    hidl_response->V1_0.maxSubscribeInterfaceAddresses = legacy_response.max_subscribe_address;
-    hidl_response->V1_0.supportedCipherSuites = legacy_response.cipher_suites_supported;
+    hidl_response->maxSubscribeInterfaceAddresses = legacy_response.max_subscribe_address;
+    hidl_response->supportedCipherSuites = legacy_response.cipher_suites_supported;
     hidl_response->instantCommunicationModeSupportFlag = legacy_response.is_instant_mode_supported;
 
     return true;
 }
 
 bool convertLegacyNanMatchIndToHidl(const legacy_hal::NanMatchInd& legacy_ind,
-                                    NanMatchInd* hidl_ind) {
+                                    V1_6::NanMatchInd* hidl_ind) {
     if (!hidl_ind) {
         LOG(ERROR) << "convertLegacyNanMatchIndToHidl: hidl_ind is null";
         return false;
@@ -2080,14 +2227,14 @@
     hidl_ind->matchOccuredInBeaconFlag = legacy_ind.match_occured_flag == 1;
     hidl_ind->outOfResourceFlag = legacy_ind.out_of_resource_flag == 1;
     hidl_ind->rssiValue = legacy_ind.rssi_value;
-    hidl_ind->peerCipherType = (NanCipherSuiteType)legacy_ind.peer_cipher_type;
+    hidl_ind->peerCipherType = (V1_6::NanCipherSuiteType)legacy_ind.peer_cipher_type;
     hidl_ind->peerRequiresSecurityEnabledInNdp =
             legacy_ind.peer_sdea_params.security_cfg == legacy_hal::NAN_DP_CONFIG_SECURITY;
     hidl_ind->peerRequiresRanging =
             legacy_ind.peer_sdea_params.ranging_state == legacy_hal::NAN_RANGING_ENABLE;
-    hidl_ind->rangingMeasurementInCm = legacy_ind.range_info.range_measurement_mm / 10;
+    hidl_ind->rangingMeasurementInMm = legacy_ind.range_info.range_measurement_mm;
     hidl_ind->rangingIndicationType = legacy_ind.range_info.ranging_event_type;
-
+    hidl_ind->scid = std::vector<uint8_t>(legacy_ind.scid, legacy_ind.scid + legacy_ind.scid_len);
     return true;
 }
 
diff --git a/wifi/1.6/default/hidl_struct_util.h b/wifi/1.6/default/hidl_struct_util.h
index 7f0266a..26a6ebc 100644
--- a/wifi/1.6/default/hidl_struct_util.h
+++ b/wifi/1.6/default/hidl_struct_util.h
@@ -116,41 +116,40 @@
                                          legacy_hal::NanEnableRequest* legacy_request);
 bool convertHidlNanConfigRequestToLegacy(const V1_4::NanConfigRequest& hidl_request,
                                          legacy_hal::NanConfigRequest* legacy_request);
-bool convertHidlNanEnableRequest_1_4ToLegacy(
+bool convertHidlNanEnableRequest_1_6ToLegacy(
         const V1_4::NanEnableRequest& hidl_request1,
-        const V1_5::NanConfigRequestSupplemental& hidl_request2,
+        const V1_6::NanConfigRequestSupplemental& hidl_request2,
         legacy_hal::NanEnableRequest* legacy_request);
-bool convertHidlNanConfigRequest_1_4ToLegacy(
+bool convertHidlNanConfigRequest_1_6ToLegacy(
         const V1_4::NanConfigRequest& hidl_request1,
-        const V1_5::NanConfigRequestSupplemental& hidl_request2,
+        const V1_6::NanConfigRequestSupplemental& hidl_request2,
         legacy_hal::NanConfigRequest* legacy_request);
-bool convertHidlNanEnableRequest_1_5ToLegacy(
-        const V1_4::NanEnableRequest& hidl_request1,
-        const V1_5::NanConfigRequestSupplemental& hidl_request2,
-        legacy_hal::NanEnableRequest* legacy_request);
-bool convertHidlNanConfigRequest_1_5ToLegacy(
-        const V1_4::NanConfigRequest& hidl_request1,
-        const V1_5::NanConfigRequestSupplemental& hidl_request2,
-        legacy_hal::NanConfigRequest* legacy_request);
-bool convertHidlNanPublishRequestToLegacy(const NanPublishRequest& hidl_request,
+bool convertHidlNanPublishRequestToLegacy(const V1_6::NanPublishRequest& hidl_request,
                                           legacy_hal::NanPublishRequest* legacy_request);
-bool convertHidlNanSubscribeRequestToLegacy(const NanSubscribeRequest& hidl_request,
+bool convertHidlNanSubscribeRequestToLegacy(const V1_0::NanSubscribeRequest& hidl_request,
                                             legacy_hal::NanSubscribeRequest* legacy_request);
 bool convertHidlNanTransmitFollowupRequestToLegacy(
         const NanTransmitFollowupRequest& hidl_request,
         legacy_hal::NanTransmitFollowupRequest* legacy_request);
 bool convertHidlNanDataPathInitiatorRequestToLegacy(
-        const NanInitiateDataPathRequest& hidl_request,
+        const V1_0::NanInitiateDataPathRequest& hidl_request,
         legacy_hal::NanDataPathInitiatorRequest* legacy_request);
 bool convertHidlNanDataPathIndicationResponseToLegacy(
-        const NanRespondToDataPathIndicationRequest& hidl_response,
+        const V1_0::NanRespondToDataPathIndicationRequest& hidl_response,
         legacy_hal::NanDataPathIndicationResponse* legacy_response);
+bool convertHidlNanDataPathInitiatorRequest_1_6ToLegacy(
+        const V1_6::NanInitiateDataPathRequest& hidl_request,
+        legacy_hal::NanDataPathInitiatorRequest* legacy_request);
+bool convertHidlNanDataPathIndicationResponse_1_6ToLegacy(
+        const V1_6::NanRespondToDataPathIndicationRequest& hidl_response,
+        legacy_hal::NanDataPathIndicationResponse* legacy_response);
+
 bool convertLegacyNanResponseHeaderToHidl(const legacy_hal::NanResponseMsg& legacy_response,
                                           WifiNanStatus* wifiNanStatus);
 bool convertLegacyNanCapabilitiesResponseToHidl(const legacy_hal::NanCapabilities& legacy_response,
-                                                V1_5::NanCapabilities* hidl_response);
+                                                V1_6::NanCapabilities* hidl_response);
 bool convertLegacyNanMatchIndToHidl(const legacy_hal::NanMatchInd& legacy_ind,
-                                    NanMatchInd* hidl_ind);
+                                    V1_6::NanMatchInd* hidl_ind);
 bool convertLegacyNanFollowupIndToHidl(const legacy_hal::NanFollowupInd& legacy_ind,
                                        NanFollowupReceivedInd* hidl_ind);
 bool convertLegacyNanDataPathRequestIndToHidl(const legacy_hal::NanDataPathRequestInd& legacy_ind,
diff --git a/wifi/1.6/default/tests/wifi_nan_iface_unit_tests.cpp b/wifi/1.6/default/tests/wifi_nan_iface_unit_tests.cpp
index 13b2849..8a5ddcd 100644
--- a/wifi/1.6/default/tests/wifi_nan_iface_unit_tests.cpp
+++ b/wifi/1.6/default/tests/wifi_nan_iface_unit_tests.cpp
@@ -77,7 +77,8 @@
     MOCK_METHOD1(eventDisabled, Return<void>(const WifiNanStatus&));
     MOCK_METHOD2(eventPublishTerminated, Return<void>(uint8_t, const WifiNanStatus&));
     MOCK_METHOD2(eventSubscribeTerminated, Return<void>(uint8_t, const WifiNanStatus&));
-    MOCK_METHOD1(eventMatch, Return<void>(const NanMatchInd&));
+    MOCK_METHOD1(eventMatch, Return<void>(const V1_0::NanMatchInd&));
+    MOCK_METHOD1(eventMatch_1_6, Return<void>(const NanMatchInd&));
     MOCK_METHOD2(eventMatchExpired, Return<void>(uint8_t, uint32_t));
     MOCK_METHOD1(eventFollowupReceived, Return<void>(const NanFollowupReceivedInd&));
     MOCK_METHOD2(eventTransmitFollowup, Return<void>(uint16_t, const WifiNanStatus&));
diff --git a/wifi/1.6/default/wifi_nan_iface.cpp b/wifi/1.6/default/wifi_nan_iface.cpp
index 1add6dc..ac2ebc9 100644
--- a/wifi/1.6/default/wifi_nan_iface.cpp
+++ b/wifi/1.6/default/wifi_nan_iface.cpp
@@ -135,14 +135,14 @@
                 break;
             }
             case legacy_hal::NAN_GET_CAPABILITIES: {
-                V1_5::NanCapabilities hidl_struct;
+                V1_6::NanCapabilities hidl_struct;
                 if (!hidl_struct_util::convertLegacyNanCapabilitiesResponseToHidl(
                             msg.body.nan_capabilities, &hidl_struct)) {
                     LOG(ERROR) << "Failed to convert nan capabilities response";
                     return;
                 }
-                for (const auto& callback : shared_ptr_this->getEventCallbacks_1_5()) {
-                    if (!callback->notifyCapabilitiesResponse_1_5(id, wifiNanStatus, hidl_struct)
+                for (const auto& callback : shared_ptr_this->getEventCallbacks_1_6()) {
+                    if (!callback->notifyCapabilitiesResponse_1_6(id, wifiNanStatus, hidl_struct)
                                  .isOk()) {
                         LOG(ERROR) << "Failed to invoke the callback";
                     }
@@ -285,14 +285,14 @@
             LOG(ERROR) << "Callback invoked on an invalid object";
             return;
         }
-        NanMatchInd hidl_struct;
+        V1_6::NanMatchInd hidl_struct;
         if (!hidl_struct_util::convertLegacyNanMatchIndToHidl(msg, &hidl_struct)) {
             LOG(ERROR) << "Failed to convert nan capabilities response";
             return;
         }
 
-        for (const auto& callback : shared_ptr_this->getEventCallbacks()) {
-            if (!callback->eventMatch(hidl_struct).isOk()) {
+        for (const auto& callback : shared_ptr_this->getEventCallbacks_1_6()) {
+            if (!callback->eventMatch_1_6(hidl_struct).isOk()) {
                 LOG(ERROR) << "Failed to invoke the callback";
             }
         }
@@ -554,7 +554,7 @@
                            &WifiNanIface::disableRequestInternal, hidl_status_cb, cmd_id);
 }
 
-Return<void> WifiNanIface::startPublishRequest(uint16_t cmd_id, const NanPublishRequest& msg,
+Return<void> WifiNanIface::startPublishRequest(uint16_t cmd_id, const V1_0::NanPublishRequest& msg,
                                                startPublishRequest_cb hidl_status_cb) {
     return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
                            &WifiNanIface::startPublishRequestInternal, hidl_status_cb, cmd_id, msg);
@@ -567,7 +567,8 @@
                            sessionId);
 }
 
-Return<void> WifiNanIface::startSubscribeRequest(uint16_t cmd_id, const NanSubscribeRequest& msg,
+Return<void> WifiNanIface::startSubscribeRequest(uint16_t cmd_id,
+                                                 const V1_0::NanSubscribeRequest& msg,
                                                  startSubscribeRequest_cb hidl_status_cb) {
     return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
                            &WifiNanIface::startSubscribeRequestInternal, hidl_status_cb, cmd_id,
@@ -606,7 +607,7 @@
 }
 
 Return<void> WifiNanIface::initiateDataPathRequest(uint16_t cmd_id,
-                                                   const NanInitiateDataPathRequest& msg,
+                                                   const V1_0::NanInitiateDataPathRequest& msg,
                                                    initiateDataPathRequest_cb hidl_status_cb) {
     return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
                            &WifiNanIface::initiateDataPathRequestInternal, hidl_status_cb, cmd_id,
@@ -614,7 +615,7 @@
 }
 
 Return<void> WifiNanIface::respondToDataPathIndicationRequest(
-        uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg,
+        uint16_t cmd_id, const V1_0::NanRespondToDataPathIndicationRequest& msg,
         respondToDataPathIndicationRequest_cb hidl_status_cb) {
     return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
                            &WifiNanIface::respondToDataPathIndicationRequestInternal,
@@ -699,6 +700,46 @@
                            cmd_id);
 }
 
+Return<void> WifiNanIface::enableRequest_1_6(uint16_t cmd_id, const V1_4::NanEnableRequest& msg1,
+                                             const V1_6::NanConfigRequestSupplemental& msg2,
+                                             enableRequest_1_5_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::enableRequest_1_6Internal, hidl_status_cb, cmd_id, msg1,
+                           msg2);
+}
+
+Return<void> WifiNanIface::configRequest_1_6(uint16_t cmd_id, const V1_4::NanConfigRequest& msg1,
+                                             const V1_6::NanConfigRequestSupplemental& msg2,
+                                             configRequest_1_5_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::configRequest_1_6Internal, hidl_status_cb, cmd_id, msg1,
+                           msg2);
+}
+
+Return<void> WifiNanIface::initiateDataPathRequest_1_6(uint16_t cmd_id,
+                                                       const V1_6::NanInitiateDataPathRequest& msg,
+                                                       initiateDataPathRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::initiateDataPathRequest_1_6Internal, hidl_status_cb,
+                           cmd_id, msg);
+}
+
+Return<void> WifiNanIface::respondToDataPathIndicationRequest_1_6(
+        uint16_t cmd_id, const V1_6::NanRespondToDataPathIndicationRequest& msg,
+        respondToDataPathIndicationRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::respondToDataPathIndicationRequest_1_6Internal,
+                           hidl_status_cb, cmd_id, msg);
+}
+
+Return<void> WifiNanIface::startPublishRequest_1_6(uint16_t cmd_id,
+                                                   const V1_6::NanPublishRequest& msg,
+                                                   startPublishRequest_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                           &WifiNanIface::startPublishRequest_1_6Internal, hidl_status_cb, cmd_id,
+                           msg);
+}
+
 std::pair<WifiStatus, std::string> WifiNanIface::getNameInternal() {
     return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
 }
@@ -742,15 +783,9 @@
     return createWifiStatusFromLegacyError(legacy_status);
 }
 
-WifiStatus WifiNanIface::startPublishRequestInternal(uint16_t cmd_id,
-                                                     const NanPublishRequest& msg) {
-    legacy_hal::NanPublishRequest legacy_msg;
-    if (!hidl_struct_util::convertHidlNanPublishRequestToLegacy(msg, &legacy_msg)) {
-        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
-    }
-    legacy_hal::wifi_error legacy_status =
-            legacy_hal_.lock()->nanPublishRequest(ifname_, cmd_id, legacy_msg);
-    return createWifiStatusFromLegacyError(legacy_status);
+WifiStatus WifiNanIface::startPublishRequestInternal(uint16_t /* cmd_id */,
+                                                     const V1_0::NanPublishRequest& /* msg */) {
+    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
 }
 
 WifiStatus WifiNanIface::stopPublishRequestInternal(uint16_t cmd_id, uint8_t sessionId) {
@@ -762,7 +797,7 @@
 }
 
 WifiStatus WifiNanIface::startSubscribeRequestInternal(uint16_t cmd_id,
-                                                       const NanSubscribeRequest& msg) {
+                                                       const V1_0::NanSubscribeRequest& msg) {
     legacy_hal::NanSubscribeRequest legacy_msg;
     if (!hidl_struct_util::convertHidlNanSubscribeRequestToLegacy(msg, &legacy_msg)) {
         return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
@@ -803,8 +838,8 @@
             legacy_hal_.lock()->nanDataInterfaceDelete(ifname_, cmd_id, iface_name);
     return createWifiStatusFromLegacyError(legacy_status);
 }
-WifiStatus WifiNanIface::initiateDataPathRequestInternal(uint16_t cmd_id,
-                                                         const NanInitiateDataPathRequest& msg) {
+WifiStatus WifiNanIface::initiateDataPathRequestInternal(
+        uint16_t cmd_id, const V1_0::NanInitiateDataPathRequest& msg) {
     legacy_hal::NanDataPathInitiatorRequest legacy_msg;
     if (!hidl_struct_util::convertHidlNanDataPathInitiatorRequestToLegacy(msg, &legacy_msg)) {
         return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
@@ -814,7 +849,7 @@
     return createWifiStatusFromLegacyError(legacy_status);
 }
 WifiStatus WifiNanIface::respondToDataPathIndicationRequestInternal(
-        uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg) {
+        uint16_t cmd_id, const V1_0::NanRespondToDataPathIndicationRequest& msg) {
     legacy_hal::NanDataPathIndicationResponse legacy_msg;
     if (!hidl_struct_util::convertHidlNanDataPathIndicationResponseToLegacy(msg, &legacy_msg)) {
         return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
@@ -886,11 +921,23 @@
     return createWifiStatusFromLegacyError(legacy_status);
 }
 
-WifiStatus WifiNanIface::enableRequest_1_5Internal(uint16_t cmd_id,
+WifiStatus WifiNanIface::enableRequest_1_5Internal(
+        uint16_t /* cmd_id */, const V1_4::NanEnableRequest& /* msg1 */,
+        const V1_5::NanConfigRequestSupplemental& /* msg2 */) {
+    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
+}
+
+WifiStatus WifiNanIface::configRequest_1_5Internal(
+        uint16_t /* cmd_id */, const V1_4::NanConfigRequest& /* msg1 */,
+        const V1_5::NanConfigRequestSupplemental& /* msg2 */) {
+    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
+}
+
+WifiStatus WifiNanIface::enableRequest_1_6Internal(uint16_t cmd_id,
                                                    const V1_4::NanEnableRequest& msg1,
-                                                   const V1_5::NanConfigRequestSupplemental& msg2) {
+                                                   const V1_6::NanConfigRequestSupplemental& msg2) {
     legacy_hal::NanEnableRequest legacy_msg;
-    if (!hidl_struct_util::convertHidlNanEnableRequest_1_5ToLegacy(msg1, msg2, &legacy_msg)) {
+    if (!hidl_struct_util::convertHidlNanEnableRequest_1_6ToLegacy(msg1, msg2, &legacy_msg)) {
         return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
     }
     legacy_hal::wifi_error legacy_status =
@@ -898,11 +945,11 @@
     return createWifiStatusFromLegacyError(legacy_status);
 }
 
-WifiStatus WifiNanIface::configRequest_1_5Internal(uint16_t cmd_id,
+WifiStatus WifiNanIface::configRequest_1_6Internal(uint16_t cmd_id,
                                                    const V1_4::NanConfigRequest& msg1,
-                                                   const V1_5::NanConfigRequestSupplemental& msg2) {
+                                                   const V1_6::NanConfigRequestSupplemental& msg2) {
     legacy_hal::NanConfigRequest legacy_msg;
-    if (!hidl_struct_util::convertHidlNanConfigRequest_1_5ToLegacy(msg1, msg2, &legacy_msg)) {
+    if (!hidl_struct_util::convertHidlNanConfigRequest_1_6ToLegacy(msg1, msg2, &legacy_msg)) {
         return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
     }
     legacy_hal::wifi_error legacy_status =
@@ -910,6 +957,39 @@
     return createWifiStatusFromLegacyError(legacy_status);
 }
 
+WifiStatus WifiNanIface::initiateDataPathRequest_1_6Internal(
+        uint16_t cmd_id, const V1_6::NanInitiateDataPathRequest& msg) {
+    legacy_hal::NanDataPathInitiatorRequest legacy_msg;
+    if (!hidl_struct_util::convertHidlNanDataPathInitiatorRequest_1_6ToLegacy(msg, &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+            legacy_hal_.lock()->nanDataRequestInitiator(ifname_, cmd_id, legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::respondToDataPathIndicationRequest_1_6Internal(
+        uint16_t cmd_id, const V1_6::NanRespondToDataPathIndicationRequest& msg) {
+    legacy_hal::NanDataPathIndicationResponse legacy_msg;
+    if (!hidl_struct_util::convertHidlNanDataPathIndicationResponse_1_6ToLegacy(msg, &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+            legacy_hal_.lock()->nanDataIndicationResponse(ifname_, cmd_id, legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
+WifiStatus WifiNanIface::startPublishRequest_1_6Internal(uint16_t cmd_id,
+                                                         const V1_6::NanPublishRequest& msg) {
+    legacy_hal::NanPublishRequest legacy_msg;
+    if (!hidl_struct_util::convertHidlNanPublishRequestToLegacy(msg, &legacy_msg)) {
+        return createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS);
+    }
+    legacy_hal::wifi_error legacy_status =
+            legacy_hal_.lock()->nanPublishRequest(ifname_, cmd_id, legacy_msg);
+    return createWifiStatusFromLegacyError(legacy_status);
+}
+
 WifiStatus WifiNanIface::registerEventCallback_1_6Internal(
         const sp<V1_6::IWifiNanIfaceEventCallback>& callback) {
     sp<V1_0::IWifiNanIfaceEventCallback> callback_1_0 = callback;
diff --git a/wifi/1.6/default/wifi_nan_iface.h b/wifi/1.6/default/wifi_nan_iface.h
index b732ef1..15bf572 100644
--- a/wifi/1.6/default/wifi_nan_iface.h
+++ b/wifi/1.6/default/wifi_nan_iface.h
@@ -32,6 +32,8 @@
 namespace implementation {
 using namespace android::hardware::wifi::V1_0;
 using namespace android::hardware::wifi::V1_2;
+using namespace android::hardware::wifi::V1_4;
+using namespace android::hardware::wifi::V1_6;
 
 /**
  * HIDL interface object used to control a NAN Iface instance.
@@ -58,11 +60,11 @@
     Return<void> configRequest(uint16_t cmd_id, const V1_0::NanConfigRequest& msg,
                                configRequest_cb hidl_status_cb) override;
     Return<void> disableRequest(uint16_t cmd_id, disableRequest_cb hidl_status_cb) override;
-    Return<void> startPublishRequest(uint16_t cmd_id, const NanPublishRequest& msg,
+    Return<void> startPublishRequest(uint16_t cmd_id, const V1_0::NanPublishRequest& msg,
                                      startPublishRequest_cb hidl_status_cb) override;
     Return<void> stopPublishRequest(uint16_t cmd_id, uint8_t sessionId,
                                     stopPublishRequest_cb hidl_status_cb) override;
-    Return<void> startSubscribeRequest(uint16_t cmd_id, const NanSubscribeRequest& msg,
+    Return<void> startSubscribeRequest(uint16_t cmd_id, const V1_0::NanSubscribeRequest& msg,
                                        startSubscribeRequest_cb hidl_status_cb) override;
     Return<void> stopSubscribeRequest(uint16_t cmd_id, uint8_t sessionId,
                                       stopSubscribeRequest_cb hidl_status_cb) override;
@@ -72,10 +74,11 @@
                                             createDataInterfaceRequest_cb hidl_status_cb) override;
     Return<void> deleteDataInterfaceRequest(uint16_t cmd_id, const hidl_string& iface_name,
                                             deleteDataInterfaceRequest_cb hidl_status_cb) override;
-    Return<void> initiateDataPathRequest(uint16_t cmd_id, const NanInitiateDataPathRequest& msg,
+    Return<void> initiateDataPathRequest(uint16_t cmd_id,
+                                         const V1_0::NanInitiateDataPathRequest& msg,
                                          initiateDataPathRequest_cb hidl_status_cb) override;
     Return<void> respondToDataPathIndicationRequest(
-            uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg,
+            uint16_t cmd_id, const V1_0::NanRespondToDataPathIndicationRequest& msg,
             respondToDataPathIndicationRequest_cb hidl_status_cb) override;
     Return<void> terminateDataPathRequest(uint16_t cmd_id, uint32_t ndpInstanceId,
                                           terminateDataPathRequest_cb hidl_status_cb) override;
@@ -98,14 +101,28 @@
                                            registerEventCallback_1_5_cb hidl_status_cb) override;
     Return<void> enableRequest_1_5(uint16_t cmd_id, const V1_4::NanEnableRequest& msg1,
                                    const V1_5::NanConfigRequestSupplemental& msg2,
-                                   enableRequest_1_4_cb hidl_status_cb) override;
+                                   enableRequest_1_5_cb hidl_status_cb) override;
     Return<void> configRequest_1_5(uint16_t cmd_id, const V1_4::NanConfigRequest& msg1,
                                    const V1_5::NanConfigRequestSupplemental& msg2,
-                                   configRequest_1_4_cb hidl_status_cb) override;
+                                   configRequest_1_5_cb hidl_status_cb) override;
     Return<void> getCapabilitiesRequest_1_5(uint16_t cmd_id,
                                             getCapabilitiesRequest_cb hidl_status_cb) override;
     Return<void> registerEventCallback_1_6(const sp<V1_6::IWifiNanIfaceEventCallback>& callback,
                                            registerEventCallback_1_6_cb hidl_status_cb) override;
+    Return<void> initiateDataPathRequest_1_6(
+            uint16_t cmd_id, const V1_6::NanInitiateDataPathRequest& msg,
+            initiateDataPathRequest_1_6_cb hidl_status_cb) override;
+    Return<void> respondToDataPathIndicationRequest_1_6(
+            uint16_t cmd_id, const V1_6::NanRespondToDataPathIndicationRequest& msg,
+            respondToDataPathIndicationRequest_1_6_cb hidl_status_cb) override;
+    Return<void> enableRequest_1_6(uint16_t cmd_id, const V1_4::NanEnableRequest& msg1,
+                                   const V1_6::NanConfigRequestSupplemental& msg2,
+                                   enableRequest_1_6_cb hidl_status_cb) override;
+    Return<void> configRequest_1_6(uint16_t cmd_id, const V1_4::NanConfigRequest& msg1,
+                                   const V1_6::NanConfigRequestSupplemental& msg2,
+                                   configRequest_1_6_cb hidl_status_cb) override;
+    Return<void> startPublishRequest_1_6(uint16_t cmd_id, const V1_6::NanPublishRequest& msg,
+                                         startPublishRequest_cb hidl_status_cb) override;
 
   private:
     // Corresponding worker functions for the HIDL methods.
@@ -116,18 +133,18 @@
     WifiStatus enableRequestInternal(uint16_t cmd_id, const V1_0::NanEnableRequest& msg);
     WifiStatus configRequestInternal(uint16_t cmd_id, const V1_0::NanConfigRequest& msg);
     WifiStatus disableRequestInternal(uint16_t cmd_id);
-    WifiStatus startPublishRequestInternal(uint16_t cmd_id, const NanPublishRequest& msg);
+    WifiStatus startPublishRequestInternal(uint16_t cmd_id, const V1_0::NanPublishRequest& msg);
     WifiStatus stopPublishRequestInternal(uint16_t cmd_id, uint8_t sessionId);
-    WifiStatus startSubscribeRequestInternal(uint16_t cmd_id, const NanSubscribeRequest& msg);
+    WifiStatus startSubscribeRequestInternal(uint16_t cmd_id, const V1_0::NanSubscribeRequest& msg);
     WifiStatus stopSubscribeRequestInternal(uint16_t cmd_id, uint8_t sessionId);
     WifiStatus transmitFollowupRequestInternal(uint16_t cmd_id,
                                                const NanTransmitFollowupRequest& msg);
     WifiStatus createDataInterfaceRequestInternal(uint16_t cmd_id, const std::string& iface_name);
     WifiStatus deleteDataInterfaceRequestInternal(uint16_t cmd_id, const std::string& iface_name);
     WifiStatus initiateDataPathRequestInternal(uint16_t cmd_id,
-                                               const NanInitiateDataPathRequest& msg);
+                                               const V1_0::NanInitiateDataPathRequest& msg);
     WifiStatus respondToDataPathIndicationRequestInternal(
-            uint16_t cmd_id, const NanRespondToDataPathIndicationRequest& msg);
+            uint16_t cmd_id, const V1_0::NanRespondToDataPathIndicationRequest& msg);
     WifiStatus terminateDataPathRequestInternal(uint16_t cmd_id, uint32_t ndpInstanceId);
 
     WifiStatus registerEventCallback_1_2Internal(
@@ -150,6 +167,16 @@
     WifiStatus registerEventCallback_1_6Internal(
             const sp<V1_6::IWifiNanIfaceEventCallback>& callback);
 
+    WifiStatus enableRequest_1_6Internal(uint16_t cmd_id, const V1_4::NanEnableRequest& msg1,
+                                         const V1_6::NanConfigRequestSupplemental& msg2);
+    WifiStatus configRequest_1_6Internal(uint16_t cmd_id, const V1_4::NanConfigRequest& msg,
+                                         const V1_6::NanConfigRequestSupplemental& msg2);
+    WifiStatus startPublishRequest_1_6Internal(uint16_t cmd_id, const V1_6::NanPublishRequest& msg);
+    WifiStatus initiateDataPathRequest_1_6Internal(uint16_t cmd_id,
+                                                   const V1_6::NanInitiateDataPathRequest& msg);
+    WifiStatus respondToDataPathIndicationRequest_1_6Internal(
+            uint16_t cmd_id, const V1_6::NanRespondToDataPathIndicationRequest& msg);
+
     // all 1_0 and descendant callbacks
     std::set<sp<V1_0::IWifiNanIfaceEventCallback>> getEventCallbacks();
     // all 1_2 and descendant callbacks
diff --git a/wifi/1.6/types.hal b/wifi/1.6/types.hal
index f1d9d45..2a49d08 100644
--- a/wifi/1.6/types.hal
+++ b/wifi/1.6/types.hal
@@ -17,7 +17,18 @@
 package android.hardware.wifi@1.6;
 
 import @1.0::MacAddress;
+import @1.0::NanCipherSuiteType;
+import @1.0::NanDataPathChannelCfg;
 import @1.0::NanDataPathConfirmInd;
+import @1.0::NanDataPathSecurityConfig;
+import @1.0::NanDataPathSecurityType;
+import @1.0::NanDiscoveryCommonConfig;
+import @1.0::NanInitiateDataPathRequest;
+import @1.0::NanMatchAlg;
+import @1.0::NanRangingIndication;
+import @1.0::NanRespondToDataPathIndicationRequest;
+import @1.0::NanPublishType;
+import @1.0::NanTxType;
 import @1.0::Rssi;
 import @1.0::RttBw;
 import @1.0::RttPeerType;
@@ -34,6 +45,7 @@
 import @1.0::WifiRateNss;
 import @1.4::RttPreamble;
 import @1.4::WifiRatePreamble;
+import @1.5::NanConfigRequestSupplemental;
 import @1.5::StaLinkLayerIfaceContentionTimeStats;
 import @1.5::WifiIfaceMode;
 
@@ -78,22 +90,25 @@
  * Channel information.
  */
 struct WifiChannelInfo {
-  /**
-   * Channel width (20, 40, 80, 80+80, 160, 320).
-   */
-  WifiChannelWidthInMhz width;
-  /**
-   * Primary 20 MHz channel.
-   */
-  WifiChannelInMhz centerFreq;
-  /**
-   * Center frequency (MHz) first segment.
-   */
-  WifiChannelInMhz centerFreq0;
-  /**
-   * Center frequency (MHz) second segment.
-   */
-  WifiChannelInMhz centerFreq1;
+    /**
+     * Channel width (20, 40, 80, 80+80, 160, 320).
+     */
+    WifiChannelWidthInMhz width;
+
+    /**
+     * Primary 20 MHz channel.
+     */
+    WifiChannelInMhz centerFreq;
+
+    /**
+     * Center frequency (MHz) first segment.
+     */
+    WifiChannelInMhz centerFreq0;
+
+    /**
+     * Center frequency (MHz) second segment.
+     */
+    WifiChannelInMhz centerFreq1;
 };
 
 /**
@@ -211,14 +226,16 @@
 };
 
 struct WifiChannelStats {
-   /**
-    * Channel information.
-    */
+    /**
+     * Channel information.
+     */
     WifiChannelInfo channel;
+
     /**
      * Total time for which the radio is awake on this channel.
      */
     uint32_t onTimeInMs;
+
     /**
      * Total time for which CCA is held busy on this channel.
      */
@@ -280,12 +297,14 @@
      * Station count: The total number of stations currently associated with the peer.
      */
     uint16_t staCount;
+
     /**
      * Channel utilization: The percentage of time (normalized to 255, i.e., x% corresponds to
      * (int) x * 255 / 100) that the medium is sensed as busy measured by either physical or
      * virtual carrier sense (CS) mechanism.
      */
     uint16_t chanUtil;
+
     /**
      * Per rate statistics
      */
@@ -386,23 +405,27 @@
  * Per rate statistics.  The rate is characterized by the combination of preamble, number of spatial
  * streams, transmission bandwidth, and modulation and coding scheme (MCS).
  */
-struct StaRateStat{
+struct StaRateStat {
     /**
      * Wifi rate information: preamble, number of spatial streams, bandwidth, MCS, etc.
      */
     WifiRateInfo rateInfo;
+
     /**
      * Number of successfully transmitted data packets (ACK received)
      */
     uint32_t txMpdu;
+
     /**
      * Number of received data packets
      */
     uint32_t rxMpdu;
+
     /**
      * Number of data packet losses (no ACK)
      */
     uint32_t mpduLost;
+
     /**
      * Number of data packet retries
      */
@@ -551,10 +574,12 @@
      * Channel frequency in MHz.
      */
     WifiChannelInMhz channelFreq;
+
     /**
      * Channel bandwidth in MHz.
      */
     WifiChannelWidthInMhz channelBandwidth;
+
     /**
      * Number of spatial streams used in the channel.
      */
@@ -571,6 +596,7 @@
      * Baseline information as defined in HAL 1.0.
      */
     @1.0::NanDataPathConfirmInd V1_0;
+
     /**
      * The channel(s) on which the NDP is scheduled to operate.
      * Updates to the operational channels are provided using the |eventDataPathScheduleUpdate|
@@ -591,10 +617,12 @@
      * The discovery address (NMI) of the peer to which the NDP is connected.
      */
     MacAddress peerDiscoveryAddress;
+
     /**
      * The updated channel(s) information.
      */
     vec<NanDataPathChannelInfo> channelInfo;
+
     /**
      * The list of NDPs to which this update applies.
      */
@@ -668,3 +696,569 @@
      */
     uint8_t mcVersion;
 };
+
+/**
+ * Cipher suite flags.
+ */
+enum NanCipherSuiteType : @1.0::NanCipherSuiteType {
+    /**
+     *  NCS-PK-128
+     */
+    PUBLIC_KEY_128_MASK = 1 << 2,
+    /**
+     *  NCS-PK-256
+     */
+    PUBLIC_KEY_256_MASK = 1 << 3,
+};
+
+/**
+ * NAN configuration request parameters added in the 1.2 HAL. These are supplemental to previous
+ * versions.
+ */
+struct NanConfigRequestSupplemental {
+    /**
+     * Baseline information as defined in HAL 1.5.
+     */
+    @1.5::NanConfigRequestSupplemental V1_5;
+
+    /**
+     * Controls NAN instant communication mode operate on which channel
+     */
+    uint32_t instantModeChannel;
+};
+
+/**
+ * Configuration of NAN data-path security.
+ */
+struct NanDataPathSecurityConfig {
+    /**
+     * Security configuration of the data-path (NDP). Security is enabled if not equal to
+     * |NanDataPathSecurityType.OPEN|.
+     * NAN Spec: Service Discovery Extension Attribute (SDEA) / Control / Security Required
+     */
+    NanDataPathSecurityType securityType;
+
+    /**
+     * Cipher type for data-paths. If |securityType| is |NanDataPathSecurityType.OPEN| then must
+     * be set to |NanCipherSuiteType.NONE|, otherwise a non-|NanCipherSuiteType.NONE| cipher suite
+     * must be specified.
+     */
+    NanCipherSuiteType cipherType;
+
+    /**
+     * Optional Pairwise Master Key (PMK). Must be specified (and is only used) if |securityType| is
+     * set to |NanDataPathSecurityType.PMK|.
+     * Ref: IEEE 802.11i
+     */
+    uint8_t[32] pmk;
+
+    /**
+     * Optional Passphrase. Must be specified (and is only used) if |securityType| is set to
+     * |NanDataPathSecurityType.PASSPHRASE|.
+     * Min length: |MIN_PASSPHRASE_LENGTH|
+     * Max length: |MAX_PASSPHRASE_LENGTH|
+     * NAN Spec: Appendix: Mapping passphrase to PMK for NCS-SK Cipher Suites
+     */
+    vec<uint8_t> passphrase;
+
+    /**
+     * Security Context Identifier attribute contains PMKID shall be included in NDP setup and
+     * response messages. Security Context Identifier, Identifies the Security Context. When
+     * security is enabled This field contains the 16 octet PMKID identifying the PMK used for
+     * setting up the Secure Data Path.
+     */
+    uint8_t[16] scid;
+};
+
+/**
+ * Response to a data-path request from a peer.
+ */
+struct NanRespondToDataPathIndicationRequest {
+    /**
+     * Accept (true) or reject (false) the request.
+     * NAN Spec: Data Path Attributes / NDP Attribute / Type and Status
+     */
+    bool acceptRequest;
+
+    /**
+     * ID of the data-path (NDP) for which we're responding - obtained as part of the request in
+     * |IWifiNanIfaceEventCallback.eventDataPathRequest|.
+     */
+    uint32_t ndpInstanceId;
+
+    /**
+     * NAN data interface name on which this data-path session is to be started.
+     * This must be an interface created using |IWifiNanIface.createDataInterfaceRequest|.
+     */
+    string ifaceName;
+
+    /**
+     * Security configuration of the requested data-path.
+     */
+    NanDataPathSecurityConfig securityConfig;
+
+    /**
+     * Arbitrary information communicated to the peer as part of the data-path setup process - there
+     * is no semantic meaning to these bytes. They are passed-through from sender to receiver as-is
+     * with no parsing.
+     * Max length: |NanCapabilities.maxAppInfoLen|.
+     * NAN Spec: Data Path Attributes / NDP Attribute / NDP Specific Info
+     */
+    vec<uint8_t> appInfo;
+
+    /**
+     * A service name to be used with |passphrase| to construct a Pairwise Master Key (PMK) for the
+     * data-path. Only relevant when a data-path is requested which is not associated with a NAN
+     * discovery session - e.g. using out-of-band discovery.
+     * Constraints: same as |NanDiscoveryCommonConfig.serviceName|
+     * NAN Spec: Appendix: Mapping pass-phrase to PMK for NCS-SK Cipher Suites
+     */
+    vec<uint8_t> serviceNameOutOfBand;
+};
+
+/**
+ *  Data Path Initiator requesting a data-path.
+ */
+struct NanInitiateDataPathRequest {
+    /**
+     * ID of the peer. Obtained as part of an earlier |IWifiNanIfaceEventCallback.eventMatch| or
+     * |IWifiNanIfaceEventCallback.eventFollowupReceived|.
+     */
+    uint32_t peerId;
+
+    /**
+     * NAN management interface MAC address of the peer. Obtained as part of an earlier
+     * |IWifiNanIfaceEventCallback.eventMatch| or |IWifiNanIfaceEventCallback.eventFollowupReceived|.
+     */
+    MacAddress peerDiscMacAddr;
+
+    /**
+     * Config flag for channel request.
+     */
+    NanDataPathChannelCfg channelRequestType;
+
+    /**
+     * Channel frequency in MHz to start data-path. Not relevant if |channelRequestType| is
+     * |NanDataPathChannelCfg.CHANNEL_NOT_REQUESTED|.
+     */
+    WifiChannelInMhz channel;
+
+    /**
+     * NAN data interface name on which this data-path session is to be initiated.
+     * This must be an interface created using |IWifiNanIface.createDataInterfaceRequest|.
+     */
+    string ifaceName;
+
+    /**
+     * Security configuration of the requested data-path.
+     */
+    NanDataPathSecurityConfig securityConfig;
+
+    /**
+     * Arbitrary information communicated to the peer as part of the data-path setup process - there
+     * is no semantic meaning to these bytes. They are passed-through from sender to receiver as-is
+     * with no parsing.
+     * Max length: |NanCapabilities.maxAppInfoLen|.
+     * NAN Spec: Data Path Attributes / NDP Attribute / NDP Specific Info
+     */
+    vec<uint8_t> appInfo;
+
+    /**
+     * A service name to be used with |passphrase| to construct a Pairwise Master Key (PMK) for the
+     * data-path. Only relevant when a data-path is requested which is not associated with a NAN
+     * discovery session - e.g. using out-of-band discovery.
+     * Constraints: same as |NanDiscoveryCommonConfig.serviceName|
+     * NAN Spec: Appendix: Mapping pass-phrase to PMK for NCS-SK Cipher Suites
+     */
+    vec<uint8_t> serviceNameOutOfBand;
+};
+
+/**
+ * Configurations of NAN discovery sessions: common to publish and subscribe discovery.
+ */
+struct NanDiscoveryCommonConfig {
+    /**
+     * The ID of the discovery session being configured. A value of 0 specifies a request to create
+     * a new discovery session. The new discovery session ID is returned with
+     * |IWifiNanIfaceEventCallback.notifyStartPublishResponse| or
+     * |IWifiNanIfaceEventCallback.notifyStartSubscribeResponse|.
+     * NAN Spec: Service Descriptor Attribute (SDA) / Instance ID
+     */
+    uint8_t sessionId;
+
+    /**
+     * The lifetime of the discovery session in seconds. A value of 0 means run forever or until
+     * canceled using |IWifiIface.stopPublishRequest| or |IWifiIface.stopSubscribeRequest|.
+     */
+    uint16_t ttlSec;
+
+    /**
+     * Indicates the interval between two Discovery Windows in which the device supporting the
+     * service is awake to transmit or receive the Service Discovery frames. Valid values of Awake
+     * DW Interval are: 1, 2, 4, 8 and 16. A value of 0 will default to 1. Does not override
+     * |NanBandSpecificConfig.discoveryWindowIntervalVal| configurations if those are specified.
+     */
+    uint16_t discoveryWindowPeriod;
+
+    /**
+     * The lifetime of the discovery session in number of transmitted SDF discovery packets. A value
+     * of 0 means forever or until canceled using |IWifiIface.stopPublishRequest| or
+     * |IWifiIface.stopSubscribeRequest|.
+     */
+    uint8_t discoveryCount;
+
+    /**
+     * UTF-8 encoded string identifying the service.
+     * Max length: |NanCapabilities.maxServiceNameLen|.
+     * NAN Spec: The only acceptable single-byte UTF-8 symbols for a Service Name are alphanumeric
+     * values (A-Z, a-z, 0-9), the hyphen ('-'), and the period ('.'). All valid multi-byte UTF-8
+     * characters are acceptable in a Service Name.
+     */
+    vec<uint8_t> serviceName;
+
+    /**
+     * Specifies how often to trigger |IWifiNanIfaceEventCallback.eventMatch| when continuously
+     * discovering the same discovery session (with no changes).
+     */
+    NanMatchAlg discoveryMatchIndicator;
+
+    /**
+     * Arbitrary information communicated in discovery packets - there is no semantic meaning to these
+     * bytes. They are passed-through from publisher to subscriber as-is with no parsing.
+     * Max length: |NanCapabilities.maxServiceSpecificInfoLen|.
+     * NAN Spec: Service Descriptor Attribute (SDA) / Service Info
+     */
+    vec<uint8_t> serviceSpecificInfo;
+
+    /**
+     * Arbitrary information communicated in discovery packets - there is no semantic meaning to these
+     * bytes. They are passed-through from publisher to subscriber as-is with no parsing.
+     * Max length: |NanCapabilities.maxExtendedServiceSpecificInfoLen|.
+     * Spec: Service Descriptor Extension Attribute (SDEA) / Service Info
+     */
+    vec<uint8_t> extendedServiceSpecificInfo;
+
+    /**
+     * Ordered sequence of <length, value> pairs (|length| uses 1 byte and contains the number of
+     * bytes in the |value| field) which specify further match criteria (beyond the service name).
+     * The match behavior is specified in details in the NAN spec.
+     * Publisher: used in SOLICITED or SOLICITED_UNSOLICITED sessions.
+     * Subscriber: used in ACTIVE or PASSIVE sessions.
+     * Max length: |NanCapabilities.maxMatchFilterLen|.
+     * NAN Spec: matching_filter_rx
+     */
+    vec<uint8_t> rxMatchFilter;
+
+    /**
+     * Ordered sequence of <length, value> pairs (|length| uses 1 byte and contains the number of
+     * bytes in the |value| field) which specify further match criteria (beyond the service name).
+     * The match behavior is specified in details in the NAN spec.
+     * Publisher: used if provided.
+     * Subscriber: used (if provided) only in ACTIVE sessions.
+     * Max length: |NanCapabilities.maxMatchFilterLen|.
+     * NAN Spec: matching_filter_tx and Service Descriptor Attribute (SDA) / Matching Filter
+     */
+    vec<uint8_t> txMatchFilter;
+
+    /**
+     * Specifies whether or not the discovery session uses the
+     * |NanBandSpecificConfig.rssiCloseProximity| value (configured in enable/configure requests) to
+     * filter out matched discovered peers.
+     * NAN Spec: Service Descriptor Attribute / Service Control / Discovery Range Limited.
+     */
+    bool useRssiThreshold;
+
+    /**
+     * Controls whether or not the |IWifiNanIfaceEventCallback.eventPublishTerminated| (for publish
+     * discovery sessions) or |IWifiNanIfaceEventCallback.eventSubscribeTerminated| (for subscribe
+     * discovery sessions) will be delivered.
+     */
+    bool disableDiscoveryTerminationIndication;
+
+    /**
+     * Controls whether or not the |IWifiNanIfaceEventCallback.eventMatchExpired| will be delivered.
+     */
+    bool disableMatchExpirationIndication;
+
+    /**
+     * Controls whether or not the |IWifiNanIfaceEventCallback.eventFollowupReceived| will be
+     * delivered.
+     */
+    bool disableFollowupReceivedIndication;
+
+    /**
+     * Security configuration of data-paths created in the context of this discovery session. Security
+     * parameters can be overridden during the actual construction of the data-path - allowing
+     * individual data-paths to have unique PMKs or Passphrases.
+     */
+    NanDataPathSecurityConfig securityConfig;
+
+    /**
+     * Specifies whether or not there is a ranging requirement in this discovery session.
+     * Ranging is only performed if all other match criteria with the peer are met. Ranging must
+     * be performed if both peers in the discovery session (publisher and subscriber) set this
+     * flag to true. Otherwise, if either peer sets this flag to false, ranging must not be performed
+     * and must not impact discovery decisions.
+     * Note: specifying that ranging is required also implies that this device must automatically
+     * accept ranging requests from peers.
+     * NAN Spec: Service Discovery Extension Attribute (SDEA) / Control / Ranging Require.
+     */
+    bool rangingRequired;
+
+    /**
+     * Interval in msec between two ranging measurements. Only relevant if |rangingRequired| is true.
+     * If the Awake DW interval specified either in |discoveryWindowPeriod| or in
+     * |NanBandSpecificConfig.discoveryWindowIntervalVal| is larger than the ranging interval then
+     * priority is given to Awake DW interval.
+     */
+    uint32_t rangingIntervalMsec;
+
+    /**
+     * The type of ranging feedback to be provided by discovery session matches
+     * |IWifiNanIfaceEventCallback.eventMatch|. Only relevant if |rangingRequired| is true.
+     */
+    bitfield<NanRangingIndication> configRangingIndications;
+
+    /**
+     * The ingress and egress distance in cm. If ranging is enabled (|rangingEnabled| is true) then
+     * |configRangingIndications| is used to determine whether ingress and/or egress (or neither)
+     * are used to determine whether a match has occurred.
+     * NAN Spec: Service Discovery Extension Attribute (SDEA) / Ingress & Egress Range Limit
+     */
+    uint16_t distanceIngressCm;
+
+    uint16_t distanceEgressCm;
+};
+
+/**
+ * Publish request: specifies a publish discovery operation.
+ */
+struct NanPublishRequest {
+    /**
+     * Common configuration of discovery sessions.
+     */
+    NanDiscoveryCommonConfig baseConfigs;
+
+    /**
+     * The type of the publish discovery session.
+     */
+    NanPublishType publishType;
+
+    /**
+     * For publishType of |NanPublishType.SOLICITED| or |NanPublishType.UNSOLICITED_SOLICITED|
+     * specifies the type of transmission used for responding to the probing subscribe discovery
+     * peer.
+     */
+    NanTxType txType;
+
+    /**
+     * Specifies whether data-path requests |IWifiNanIfaceEventCallback.eventDataPathRequest| (in
+     * the context of this discovery session) are automatically accepted (if true) - in which case
+     * the Responder must not call the |IWifiNanIface.respondToDataPathIndicationRequest| method and
+     * the device must automatically accept the data-path request and complete the negotiation.
+     */
+    bool autoAcceptDataPathRequests;
+};
+
+/**
+ * Match indication structure
+ */
+struct NanMatchInd {
+    /**
+     * Publish or subscribe discovery session ID of an existing discovery session.
+     * NAN Spec: Service Descriptor Attribute (SDA) / Instance ID
+     */
+    uint8_t discoverySessionId;
+
+    /**
+     * A unique ID of the peer. Can be subsequently used in |IWifiNanIface.transmitFollowupRequest| or
+     * to set up a data-path.
+     */
+    uint32_t peerId;
+
+    /**
+     * The NAN Discovery (management) MAC address of the peer.
+     */
+    MacAddress addr;
+
+    /**
+     * The arbitrary information contained in the |NanDiscoveryCommonConfig.serviceSpecificInfo| of
+     * the peer's discovery session configuration.
+     * Max length: |NanCapabilities.maxServiceSpecificInfoLen|.
+     * NAN Spec: Service Descriptor Attribute (SDA) / Service Info
+     */
+    vec<uint8_t> serviceSpecificInfo;
+
+    /**
+     * Arbitrary information communicated in discovery packets - there is no semantic meaning to these
+     * bytes. They are passed-through from publisher to subscriber as-is with no parsing.
+     * Max length: |NanCapabilities.maxExtendedServiceSpecificInfoLen|.
+     * Spec: Service Descriptor Extension Attribute (SDEA) / Service Info
+     */
+    vec<uint8_t> extendedServiceSpecificInfo;
+
+    /**
+     * The match filter from the discovery packet (publish or subscribe) which caused service
+     * discovery. Matches the |NanDiscoveryCommonConfig.txMatchFilter| of the peer's Unsolicited
+     * publish message or of the local device's Active subscribe message.
+     * Max length: |NanCapabilities.maxMatchFilterLen|.
+     * NAN Spec: Service Descriptor Attribute (SDA) / Matching Filter
+     */
+    vec<uint8_t> matchFilter;
+
+    /**
+     * Indicates the type of discovery: true if match occurred on a Beacon frame, false if the match
+     * occurred on a Service Discovery Frames (SDF).
+     */
+    bool matchOccuredInBeaconFlag;
+
+    /**
+     * Flag to indicate firmware is out of resource and that it can no longer track this Service Name.
+     * Indicates that while |IWifiNanIfaceEventCallback.eventMatch| will be received, the
+     * |NanDiscoveryCommonConfig.discoveryMatchIndicator| configuration will not be honored.
+     */
+    bool outOfResourceFlag;
+
+    /**
+     * If RSSI filtering was enabled using |NanDiscoveryCommonConfig.useRssiThreshold| in discovery
+     * session setup then this field contains the received RSSI value. It will contain 0 if RSSI
+     * filtering was not enabled.
+     * RSSI values are returned without sign, e.g. -70dBm will be returned as 70.
+     */
+    uint8_t rssiValue;
+
+    /**
+     * Cipher type for data-paths constructed in the context of this discovery session. Valid if
+     * |peerRequiresSecurityEnabledInNdp| is true.
+     */
+    NanCipherSuiteType peerCipherType;
+
+    /**
+     * Indicates whether or not the peer requires security enabled in any data-path (NDP) constructed
+     * in the context of this discovery session. The |cipherType| specifies the cipher type for such
+     * data-paths.
+     * NAN Spec: Service Discovery Extension Attribute (SDEA) / Control / Security Required
+     */
+    bool peerRequiresSecurityEnabledInNdp;
+
+    /**
+     * Indicates whether or not the peer requires (and hence allows) ranging in the context of this
+     * discovery session.
+     * Note that ranging is only performed if all other match criteria with the peer are met.
+     * NAN Spec: Service Discovery Extension Attribute (SDEA) / Control / Ranging Require.
+     */
+    bool peerRequiresRanging;
+
+    /**
+     * Ranging indication supersedes the NanMatchAlg specification.
+     * Ex: If NanMatchAlg is MATCH_ONCE, but ranging indications is continuous then continuous
+     * match notifications will be received (with ranging information).
+     * Ranging indication data is provided if Ranging required is enabled in the discovery
+     * specification and:
+     *   1) continuous ranging specified.
+     *   2) ingress/egress specified and:
+     *       - notify once for ingress >= ingress_distance and egress <= egress_distance,
+     *       - same for ingress_egress_both
+     * If the Awake DW intervals are larger than the ranging intervals then priority is given to the
+     * device DW intervals.
+     *
+     * If ranging was required and executed contains the distance to the peer in MM. The
+     * |rangingIndicationType| field specifies the event which triggered ranging.
+     */
+    uint32_t rangingMeasurementInMm;
+
+    /**
+     * The ranging event(s) which triggered the ranging. E.g. can indicate that continuous ranging was
+     * requested, or else that an ingress event occurred.
+     */
+    bitfield<NanRangingIndication> rangingIndicationType;
+
+    /**
+     * Security Context Identifier attribute contains PMKID shall be included in NDP setup and
+     * response messages. Security Context Identifier, Identifies the Security Context. For NAN
+     * Shared Key Cipher Suite, this field contains the 16 octet PMKID identifying the PMK used for
+     * setting up the Secure Data Path.
+     */
+    vec<uint8_t> scid;
+};
+
+/**
+ * NDP Capabilities response.
+ */
+struct NanCapabilities {
+    /**
+     * Maximum number of clusters which the device can join concurrently.
+     */
+    uint32_t maxConcurrentClusters;
+
+    /**
+     * Maximum number of concurrent publish discovery sessions.
+     */
+    uint32_t maxPublishes;
+
+    /**
+     * Maximum number of concurrent subscribe discovery sessions.
+     */
+    uint32_t maxSubscribes;
+
+    /**
+     * Maximum length (in bytes) of service name.
+     */
+    uint32_t maxServiceNameLen;
+
+    /**
+     * Maximum length (in bytes) of individual match filters.
+     */
+    uint32_t maxMatchFilterLen;
+
+    /**
+     * Maximum length (in bytes) of aggregate match filters across all active sessions.
+     */
+    uint32_t maxTotalMatchFilterLen;
+
+    /**
+     * Maximum length (in bytes) of the service specific info field.
+     */
+    uint32_t maxServiceSpecificInfoLen;
+
+    /**
+     * Maximum length (in bytes) of the extended service specific info field.
+     */
+    uint32_t maxExtendedServiceSpecificInfoLen;
+
+    /**
+     * Maximum number of data interfaces (NDI) which can be created concurrently on the device.
+     */
+    uint32_t maxNdiInterfaces;
+
+    /**
+     * Maximum number of data paths (NDP) which can be created concurrently on the device, across all
+     * data interfaces (NDI).
+     */
+    uint32_t maxNdpSessions;
+
+    /**
+     * Maximum length (in bytes) of application info field (used in data-path negotiations).
+     */
+    uint32_t maxAppInfoLen;
+
+    /**
+     * Maximum number of transmitted followup messages which can be queued by the firmware.
+     */
+    uint32_t maxQueuedTransmitFollowupMsgs;
+
+    /**
+     * Maximum number MAC interface addresses which can be specified to a subscribe discovery session.
+     */
+    uint32_t maxSubscribeInterfaceAddresses;
+
+    /**
+     * The set of supported Cipher suites. The |NanCipherSuiteType| bit fields are used.
+     */
+    bitfield<NanCipherSuiteType> supportedCipherSuites;
+
+    /**
+     * Flag to indicate id instant communication mode is supported.
+     */
+    bool instantCommunicationModeSupportFlag;
+};