diff --git a/wifi/supplicant/1.2/Android.bp b/wifi/supplicant/1.2/Android.bp
index 529dad4..18e1cca 100644
--- a/wifi/supplicant/1.2/Android.bp
+++ b/wifi/supplicant/1.2/Android.bp
@@ -10,13 +10,22 @@
         "ISupplicant.hal",
         "ISupplicantP2pIface.hal",
         "ISupplicantStaIface.hal",
+        "ISupplicantStaIfaceCallback.hal",
         "ISupplicantStaNetwork.hal",
+        "types.hal",
     ],
     interfaces: [
         "android.hardware.wifi.supplicant@1.0",
         "android.hardware.wifi.supplicant@1.1",
         "android.hidl.base@1.0",
     ],
+    types: [
+        "DppAkm",
+        "DppNetRole",
+        "DppSuccessCode",
+        "DppProgressCode",
+        "DppFailureCode",
+    ],
     gen_java: true,
 }
 
diff --git a/wifi/supplicant/1.2/ISupplicantStaIface.hal b/wifi/supplicant/1.2/ISupplicantStaIface.hal
index a338c6a..9152a64 100644
--- a/wifi/supplicant/1.2/ISupplicantStaIface.hal
+++ b/wifi/supplicant/1.2/ISupplicantStaIface.hal
@@ -18,6 +18,7 @@
 
 import @1.0::SupplicantStatus;
 import @1.1::ISupplicantStaIface;
+import @1.2::ISupplicantStaIfaceCallback;
 import @1.2::ISupplicantStaNetwork;
 
 /**
@@ -25,6 +26,24 @@
  * interface (e.g wlan0) it controls.
  */
 interface ISupplicantStaIface extends @1.1::ISupplicantStaIface {
+    /**
+     * 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 |ISupplicantStaIfaceCallback| HIDL
+     *        interface object.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
+     */
+    registerCallback_1_2(ISupplicantStaIfaceCallback callback)
+        generates (SupplicantStatus status);
 
     /**
      * Get Key management capabilities of the device
@@ -38,5 +57,84 @@
      */
     getKeyMgmtCapabilities()
         generates (SupplicantStatus status, bitfield<KeyMgmtMask> keyMgmtMask);
-};
 
+    /**
+     * Add a DPP peer URI. URI is acquired externally, e.g. by scanning a QR code
+     *
+     * @param uri Peer's DPP URI.
+     * @return status Status of the operation, and an ID for the URI.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    addDppPeerUri(string uri)
+        generates (SupplicantStatus status, uint32_t id);
+
+    /**
+     * Remove a DPP peer URI.
+     *
+     * @param id The ID of the URI, as returned by |addDppPeerUri|.
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    removeDppUri(uint32_t id)
+        generates (SupplicantStatus status);
+
+    /**
+     * Start DPP in Configurator-Initiator mode.
+     *
+     * @param peerBootstrapId Peer device's URI ID.
+     * @param ownBootstrapId Local device's URI ID (0 for none, optional).
+     * @param ssid Network SSID to send to peer (SAE/PSK mode).
+     * @param password Network password to send to peer (SAE/PSK mode).
+     * @param psk Network PSK to send to peer (PSK mode only). Either password or psk should be set.
+     * @param netRole Role to configure the peer, |DppNetRole.DPP_NET_ROLE_STA| or
+     *        |DppNetRole.DPP_NET_ROLE_AP|.
+     * @param securityAkm Security AKM to use (See DppAkm).
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    startDppConfiguratorInitiator(uint32_t peerBootstrapId,
+        uint32_t ownBootstrapId, string ssid, string password,
+        string psk, DppNetRole netRole, DppAkm securityAkm)
+        generates (SupplicantStatus status);
+
+    /**
+     * Start DPP in Enrollee-Initiator mode.
+     *
+     * @param peerBootstrapId Peer device's URI ID.
+     * @param ownBootstrapId Local device's URI ID (0 for none, optional).
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+    startDppEnrolleeInitiator(uint32_t peerBootstrapId,
+        uint32_t ownBootstrapId)
+        generates (SupplicantStatus status);
+
+    /**
+     * Stop DPP Initiator operation.
+     *
+     * @return status Status of the operation.
+     *         Possible status codes:
+     *         |SupplicantStatusCode.SUCCESS|,
+     *         |SupplicantStatusCode.FAILURE_ARGS_INVALID|,
+     *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
+     *         |SupplicantStatusCode.FAILURE_NETWORK_INVALID|
+     */
+     stopDppInitiator()
+        generates (SupplicantStatus status);
+};
diff --git a/wifi/supplicant/1.2/ISupplicantStaIfaceCallback.hal b/wifi/supplicant/1.2/ISupplicantStaIfaceCallback.hal
new file mode 100644
index 0000000..5d5cccf
--- /dev/null
+++ b/wifi/supplicant/1.2/ISupplicantStaIfaceCallback.hal
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.supplicant@1.2;
+
+import @1.1::ISupplicantStaIfaceCallback;
+import @1.0::Ssid;
+
+/**
+ * Callback Interface exposed by the supplicant service
+ * for each station mode interface (ISupplicantStaIface).
+ *
+ * Clients need to host an instance of this HIDL interface object and
+ * pass a reference of the object to the supplicant via the
+ * corresponding |ISupplicantStaIface.registerCallback_1_2| method.
+ */
+interface ISupplicantStaIfaceCallback extends @1.1::ISupplicantStaIfaceCallback {
+    /**
+     * Indicates DPP configuration received success event (Enrolee mode).
+     */
+    oneway onDppSuccessConfigReceived(Ssid ssid, string password, uint8_t[32] psk,
+        DppAkm securityAkm);
+
+    /**
+     * Indicates DPP configuration sent success event (Configurator mode).
+     */
+    oneway onDppSuccess(DppSuccessCode code);
+
+    /**
+     * Indicates a DPP progress event.
+     */
+    oneway onDppProgress(DppProgressCode code);
+
+    /**
+     * Indicates a DPP failure event.
+     */
+    oneway onDppFailure(DppFailureCode code);
+};
diff --git a/wifi/supplicant/1.2/types.hal b/wifi/supplicant/1.2/types.hal
new file mode 100644
index 0000000..576b4f5
--- /dev/null
+++ b/wifi/supplicant/1.2/types.hal
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.wifi.supplicant@1.2;
+
+/**
+ * DppAkm: The various AKMs that can be provisioned using DPP.
+ */
+enum DppAkm : uint32_t {
+    PSK,
+    PSK_SAE,
+    SAE,
+    DPP,
+};
+
+/**
+ * DppNetRole: The network role that the configurator offers the enrollee.
+ */
+enum DppNetRole: uint32_t {
+    STA,
+    AP,
+};
+
+/**
+ * DppSuccessCode: Success codes for DPP (Easy Connect)
+ */
+enum DppSuccessCode : uint32_t {
+    CONFIGURATION_SENT,
+};
+
+/**
+ * DppProgressCode: Progress codes for DPP (Easy Connect)
+ */
+enum DppProgressCode : uint32_t {
+    AUTHENTICATION_SUCCESS,
+    RESPONSE_PENDING,
+};
+
+/**
+ * DppFailureCode: Error codes for DPP (Easy Connect)
+ */
+enum DppFailureCode : uint32_t {
+    INVALID_URI,
+    AUTHENTICATION,
+    NOT_COMPATIBLE,
+    CONFIGURATION,
+    BUSY,
+    TIMEOUT,
+    FAILURE,
+};