[AWARE] Add Wi-Fi Aware-specific Network info: port, transport protocol (7faa4fac) · Commits · e / os / android_frameworks_base

api/current.txt

+4 −0

Original line number	Diff line number	Diff line
		@@ -29824,12 +29824,16 @@ package android.net.wifi.aware {
		method public android.net.NetworkSpecifier build();
		method public android.net.wifi.aware.WifiAwareManager.NetworkSpecifierBuilder setDiscoverySession(android.net.wifi.aware.DiscoverySession);
		method public android.net.wifi.aware.WifiAwareManager.NetworkSpecifierBuilder setPeerHandle(android.net.wifi.aware.PeerHandle);
		method public android.net.wifi.aware.WifiAwareManager.NetworkSpecifierBuilder setPort(int);
		method public android.net.wifi.aware.WifiAwareManager.NetworkSpecifierBuilder setPskPassphrase(java.lang.String);
		method public android.net.wifi.aware.WifiAwareManager.NetworkSpecifierBuilder setTransportProtocol(int);
		}

		public final class WifiAwareNetworkInfo implements android.os.Parcelable android.net.TransportInfo {
		method public int describeContents();
		method public java.net.Inet6Address getPeerIpv6Addr();
		method public int getPort();
		method public int getTransportProtocol();
		method public void writeToParcel(android.os.Parcel, int);
		field public static final android.os.Parcelable.Creator<android.net.wifi.aware.WifiAwareNetworkInfo> CREATOR;
		}

wifi/java/android/net/wifi/aware/WifiAwareManager.java

+69 −1

Original line number	Diff line number	Diff line
		@@ -35,6 +35,7 @@ import android.os.Looper;
		import android.os.Message;
		import android.os.Process;
		import android.os.RemoteException;
		import android.text.TextUtils;
		import android.util.Log;

		import libcore.util.HexEncoding;
		@@ -434,6 +435,8 @@ public class WifiAwareManager {
		null, // peerMac (not used in this method)
		pmk,
		passphrase,
		0, // no port info for deprecated IB APIs
		-1, // no transport info for deprecated IB APIs
		Process.myUid());
		}

		@@ -473,6 +476,8 @@ public class WifiAwareManager {
		peer,
		pmk,
		passphrase,
		0, // no port info for OOB APIs
		-1, // no transport protocol info for OOB APIs
		Process.myUid());
		}

		@@ -824,6 +829,8 @@ public class WifiAwareManager {
		private PeerHandle mPeerHandle;
		private String mPskPassphrase;
		private byte[] mPmk;
		private int mPort = 0; // invalid value
		private int mTransportProtocol = -1; // invalid value

		/**
		* Configure the {@link PublishDiscoverySession} or {@link SubscribeDiscoverySession}
		@@ -901,6 +908,55 @@ public class WifiAwareManager {
		return this;
		}

		/**
		* Configure the port number which will be used to create a connection over this link. This
		* configuration should only be done on the server device, e.g. the device creating the
		* {@link java.net.ServerSocket}.
		* <p>Notes:
		* <ul>
		* <li>The server device must be the Publisher device!
		* <li>The port information can only be specified on secure links, specified using
		* {@link #setPskPassphrase(String)}.
		* </ul>
		*
		* @param port A positive integer indicating the port to be used for communication.
		* @return the current {@link NetworkSpecifierBuilder} builder, enabling chaining of builder
		* methods.
		*/
		public @NonNull NetworkSpecifierBuilder setPort(int port) {
		if (port <= 0 \|\| port > 65535) {
		throw new IllegalArgumentException("The port must be a positive value (0, 65535]");
		}
		mPort = port;
		return this;
		}

		/**
		* Configure the transport protocol which will be used to create a connection over this
		* link. This configuration should only be done on the server device, e.g. the device
		* creating the {@link java.net.ServerSocket} for TCP.
		* <p>Notes:
		* <ul>
		* <li>The server device must be the Publisher device!
		* <li>The transport protocol information can only be specified on secure links,
		* specified using {@link #setPskPassphrase(String)}.
		* </ul>
		* The transport protocol number is assigned by the Internet Assigned Numbers Authority
		* (IANA) https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml.
		*
		* @param transportProtocol The transport protocol to be used for communication.
		* @return the current {@link NetworkSpecifierBuilder} builder, enabling chaining of builder
		* methods.
		*/
		public @NonNull NetworkSpecifierBuilder setTransportProtocol(int transportProtocol) {
		if (transportProtocol < 0 \|\| transportProtocol > 255) {
		throw new IllegalArgumentException(
		"The transport protocol must be in range [0, 255]");
		}
		mTransportProtocol = transportProtocol;
		return this;
		}

		/**
		* Create a {@link android.net.NetworkRequest.Builder#setNetworkSpecifier(NetworkSpecifier)}
		* for a WiFi Aware connection (link) to the specified peer. The
		@@ -929,6 +985,18 @@ public class WifiAwareManager {
		? WifiAwareManager.WIFI_AWARE_DATA_PATH_ROLE_INITIATOR
		: WifiAwareManager.WIFI_AWARE_DATA_PATH_ROLE_RESPONDER;

		if (mPort != 0 \|\| mTransportProtocol != -1) {
		if (role != WifiAwareManager.WIFI_AWARE_DATA_PATH_ROLE_RESPONDER) {
		throw new IllegalStateException(
		"Port and transport protocol information can only "
		+ "be specified on the Publisher device (which is the server");
		}
		if (TextUtils.isEmpty(mPskPassphrase) && mPmk == null) {
		throw new IllegalStateException("Port and transport protocol information can "
		+ "only be specified on a secure link");
		}
		}

		if (role == WIFI_AWARE_DATA_PATH_ROLE_INITIATOR && mPeerHandle == null) {
		throw new IllegalStateException("Null peerHandle!?");
		}
		@@ -936,7 +1004,7 @@ public class WifiAwareManager {
		return new WifiAwareNetworkSpecifier(
		WifiAwareNetworkSpecifier.NETWORK_SPECIFIER_TYPE_IB, role,
		mDiscoverySession.mClientId, mDiscoverySession.mSessionId, mPeerHandle.peerId,
		null, mPmk, mPskPassphrase, Process.myUid());
		null, mPmk, mPskPassphrase, mPort, mTransportProtocol, Process.myUid());
		}
		}
		}

wifi/java/android/net/wifi/aware/WifiAwareNetworkInfo.java

+53 −5

Original line number	Diff line number	Diff line
		@@ -38,17 +38,30 @@ import java.util.Objects;
		* android.net.NetworkCapabilities)} callback.
		* <p>
		* The Wi-Fi Aware-specific network information include the peer's scoped link-local IPv6 address
		* for the Wi-Fi Aware link. The scoped link-local IPv6 can then be used to create a
		* for the Wi-Fi Aware link, as well as (optionally) the port and transport protocol specified by
		* the peer.
		* The scoped link-local IPv6, port, and transport protocol can then be used to create a
		* {@link java.net.Socket} connection to the peer.
		* <p>
		* Note: these are the peer's IPv6 and port information - not the local device's!
		*/
		public final class WifiAwareNetworkInfo implements TransportInfo, Parcelable {
		private Inet6Address mIpv6Addr;
		private int mPort = 0; // a value of 0 is considered invalid
		private int mTransportProtocol = -1; // a value of -1 is considered invalid

		/** @hide */
		public WifiAwareNetworkInfo(Inet6Address ipv6Addr) {
		mIpv6Addr = ipv6Addr;
		}

		/** @hide */
		public WifiAwareNetworkInfo(Inet6Address ipv6Addr, int port, int transportProtocol) {
		mIpv6Addr = ipv6Addr;
		mPort = port;
		mTransportProtocol = transportProtocol;
		}

		/**
		* Get the scoped link-local IPv6 address of the Wi-Fi Aware peer (not of the local device!).
		*
		@@ -59,6 +72,34 @@ public final class WifiAwareNetworkInfo implements TransportInfo, Parcelable {
		return mIpv6Addr;
		}

		/**
		* Get the port number to be used to create a network connection to the Wi-Fi Aware peer.
		* The port information is provided by the app running on the peer which requested the
		* connection, using the {@link WifiAwareManager.NetworkSpecifierBuilder#setPort(int)}.
		*
		* @return A port number on the peer. A value of 0 indicates that no port was specified by the
		* peer.
		*/
		public int getPort() {
		return mPort;
		}

		/**
		* Get the transport protocol to be used to communicate over a network connection to the Wi-Fi
		* Aware peer. The transport protocol is provided by the app running on the peer which requested
		* the connection, using the
		* {@link WifiAwareManager.NetworkSpecifierBuilder#setTransportProtocol(int)}.
		* <p>
		* The transport protocol number is assigned by the Internet Assigned Numbers Authority
		* (IANA) https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml.
		*
		* @return A transport protocol id. A value of -1 indicates that no transport protocol was
		* specified by the peer.
		*/
		public int getTransportProtocol() {
		return mTransportProtocol;
		}

		// parcelable methods

		@Override
		@@ -71,6 +112,8 @@ public final class WifiAwareNetworkInfo implements TransportInfo, Parcelable {
		dest.writeByteArray(mIpv6Addr.getAddress());
		NetworkInterface ni = mIpv6Addr.getScopedInterface();
		dest.writeString(ni == null ? null : ni.getName());
		dest.writeInt(mPort);
		dest.writeInt(mTransportProtocol);
		}

		public static final Creator<WifiAwareNetworkInfo> CREATOR =
		@@ -94,8 +137,10 @@ public final class WifiAwareNetworkInfo implements TransportInfo, Parcelable {
		e.printStackTrace();
		return null;
		}
		int port = in.readInt();
		int transportProtocol = in.readInt();

		return new WifiAwareNetworkInfo(ipv6Addr);
		return new WifiAwareNetworkInfo(ipv6Addr, port, transportProtocol);
		}

		@Override
		@@ -109,7 +154,9 @@ public final class WifiAwareNetworkInfo implements TransportInfo, Parcelable {

		@Override
		public String toString() {
		return new StringBuilder("AwareNetworkInfo: IPv6=").append(mIpv6Addr).toString();
		return new StringBuilder("AwareNetworkInfo: IPv6=").append(mIpv6Addr).append(
		", port=").append(mPort).append(", transportProtocol=").append(
		mTransportProtocol).toString();
		}

		/** @hide */
		@@ -124,12 +171,13 @@ public final class WifiAwareNetworkInfo implements TransportInfo, Parcelable {
		}

		WifiAwareNetworkInfo lhs = (WifiAwareNetworkInfo) obj;
		return Objects.equals(mIpv6Addr, lhs.mIpv6Addr);
		return Objects.equals(mIpv6Addr, lhs.mIpv6Addr) && mPort == lhs.mPort
		&& mTransportProtocol == lhs.mTransportProtocol;
		}

		/** @hide */
		@Override
		public int hashCode() {
		return Objects.hash(mIpv6Addr);
		return Objects.hash(mIpv6Addr, mPort, mTransportProtocol);
		}
		}

wifi/java/android/net/wifi/aware/WifiAwareNetworkSpecifier.java

+40 −16

Original line number	Diff line number	Diff line
		@@ -19,7 +19,6 @@ package android.net.wifi.aware;
		import android.net.NetworkSpecifier;
		import android.os.Parcel;
		import android.os.Parcelable;
		import android.util.Log;

		import java.util.Arrays;
		import java.util.Objects;
		@@ -116,6 +115,32 @@ public final class WifiAwareNetworkSpecifier extends NetworkSpecifier implements
		*/
		public final String passphrase;

		/**
		* The port information to be used for this link. This information will be communicated to the
		* peer as part of the layer 2 link setup.
		*
		* Information only allowed on secure links since a single layer-2 link is set up for all
		* requestors. Therefore if multiple apps on a single device request links to the same peer
		* device they all get the same link. However, the link is only set up on the first request -
		* hence only the first can transmit the port information. But we don't want to expose that
		* information to other apps. Limiting to secure links would (usually) imply single app usage.
		*
		* @hide
		*/
		public final int port;

		/**
		* The transport protocol information to be used for this link. This information will be
		* communicated to the peer as part of the layer 2 link setup.
		*
		* Information only allowed on secure links since a single layer-2 link is set up for all
		* requestors. Therefore if multiple apps on a single device request links to the same peer
		* device they all get the same link. However, the link is only set up on the first request -
		* hence only the first can transmit the port information. But we don't want to expose that
		* information to other apps. Limiting to secure links would (usually) imply single app usage.
		*/
		public final int transportProtocol;

		/**
		* The UID of the process initializing this network specifier. Validated by receiver using
		* checkUidIfNecessary() and is used by satisfiedBy() to determine whether matches the
		@@ -127,7 +152,8 @@ public final class WifiAwareNetworkSpecifier extends NetworkSpecifier implements

		/** @hide */
		public WifiAwareNetworkSpecifier(int type, int role, int clientId, int sessionId, int peerId,
		byte[] peerMac, byte[] pmk, String passphrase, int requestorUid) {
		byte[] peerMac, byte[] pmk, String passphrase, int port, int transportProtocol,
		int requestorUid) {
		this.type = type;
		this.role = role;
		this.clientId = clientId;
		@@ -136,6 +162,8 @@ public final class WifiAwareNetworkSpecifier extends NetworkSpecifier implements
		this.peerMac = peerMac;
		this.pmk = pmk;
		this.passphrase = passphrase;
		this.port = port;
		this.transportProtocol = transportProtocol;
		this.requestorUid = requestorUid;
		}

		@@ -152,6 +180,8 @@ public final class WifiAwareNetworkSpecifier extends NetworkSpecifier implements
		in.createByteArray(), // peerMac
		in.createByteArray(), // pmk
		in.readString(), // passphrase
		in.readInt(), // port
		in.readInt(), // transportProtocol
		in.readInt()); // requestorUid
		}

		@@ -186,6 +216,8 @@ public final class WifiAwareNetworkSpecifier extends NetworkSpecifier implements
		dest.writeByteArray(peerMac);
		dest.writeByteArray(pmk);
		dest.writeString(passphrase);
		dest.writeInt(port);
		dest.writeInt(transportProtocol);
		dest.writeInt(requestorUid);
		}

		@@ -202,19 +234,8 @@ public final class WifiAwareNetworkSpecifier extends NetworkSpecifier implements
		/** @hide */
		@Override
		public int hashCode() {
		int result = 17;

		result = 31 * result + type;
		result = 31 * result + role;
		result = 31 * result + clientId;
		result = 31 * result + sessionId;
		result = 31 * result + peerId;
		result = 31 * result + Arrays.hashCode(peerMac);
		result = 31 * result + Arrays.hashCode(pmk);
		result = 31 * result + Objects.hashCode(passphrase);
		result = 31 * result + requestorUid;

		return result;
		return Objects.hash(type, role, clientId, sessionId, peerId, Arrays.hashCode(peerMac),
		Arrays.hashCode(pmk), passphrase, port, transportProtocol, requestorUid);
		}

		/** @hide */
		@@ -238,6 +259,8 @@ public final class WifiAwareNetworkSpecifier extends NetworkSpecifier implements
		&& Arrays.equals(peerMac, lhs.peerMac)
		&& Arrays.equals(pmk, lhs.pmk)
		&& Objects.equals(passphrase, lhs.passphrase)
		&& port == lhs.port
		&& transportProtocol == lhs.transportProtocol
		&& requestorUid == lhs.requestorUid;
		}

		@@ -256,7 +279,8 @@ public final class WifiAwareNetworkSpecifier extends NetworkSpecifier implements
		.append(", pmk=").append((pmk == null) ? "<null>" : "<non-null>")
		// masking PII
		.append(", passphrase=").append((passphrase == null) ? "<null>" : "<non-null>")
		.append(", requestorUid=").append(requestorUid)
		.append(", port=").append(port).append(", transportProtocol=")
		.append(transportProtocol).append(", requestorUid=").append(requestorUid)
		.append("]");
		return sb.toString();
		}

wifi/tests/src/android/net/wifi/aware/WifiAwareAgentNetworkSpecifierTest.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -62,6 +62,7 @@ public class WifiAwareAgentNetworkSpecifierTest {
		WifiAwareAgentNetworkSpecifier.CREATOR.createFromParcel(parcelR);

		assertEquals(dut, rereadDut);
		assertEquals(dut.hashCode(), rereadDut.hashCode());

		// Ensure that individual network specifiers are satisfied by both the original & marshaled
		// \|WifiAwareNetworkAgentSpecifier instances.
		@@ -181,6 +182,6 @@ public class WifiAwareAgentNetworkSpecifierTest {
		WifiAwareNetworkSpecifier getDummyNetworkSpecifier(int clientId) {
		return new WifiAwareNetworkSpecifier(WifiAwareNetworkSpecifier.NETWORK_SPECIFIER_TYPE_OOB,
		WifiAwareManager.WIFI_AWARE_DATA_PATH_ROLE_INITIATOR, clientId, 0, 0, new byte[6],
		null, null, 0);
		null, null, 10, 5, 0);
		}
		}