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Merge "CAS: Add AIDL Support"

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This commit is contained in:
Yixiao Luo
2023-01-10 20:04:04 +00:00
committed by Gerrit Code Review
parent 463a012834 3181772b27
commit 27530abad7
5 changed files with 649 additions and 254 deletions
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2
Android.bp
View File

@@ -106,6 +106,7 @@ filegroup {
":android.security.maintenance-java-source",
":android.security.metrics-java-source",
":android.system.keystore2-V3-java-source",
":android.hardware.cas-V1-java-source",
":credstore_aidl",
":dumpstate_aidl",
":framework_native_aidl",
@@ -196,6 +197,7 @@ java_library {
"updatable-driver-protos",
"ota_metadata_proto_java",
"android.hidl.base-V1.0-java",
"android.hardware.cas-V1-java", // AIDL
"android.hardware.cas-V1.0-java",
"android.hardware.cas-V1.1-java",
"android.hardware.cas-V1.2-java",

1
core/api/current.txt
View File

@@ -21142,6 +21142,7 @@ package android.media {
field public static final int PLUGIN_STATUS_PHYSICAL_MODULE_CHANGED = 0; // 0x0
field public static final int PLUGIN_STATUS_SESSION_NUMBER_CHANGED = 1; // 0x1
field public static final int SCRAMBLING_MODE_AES128 = 9; // 0x9
field public static final int SCRAMBLING_MODE_AES_CBC = 14; // 0xe
field public static final int SCRAMBLING_MODE_AES_ECB = 10; // 0xa
field public static final int SCRAMBLING_MODE_AES_SCTE52 = 11; // 0xb
field public static final int SCRAMBLING_MODE_DVB_CISSA_V1 = 6; // 0x6

645
media/java/android/media/MediaCas.java
View File

@@ -21,11 +21,12 @@ import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.TestApi;
import android.content.Context;
import android.hardware.cas.AidlCasPluginDescriptor;
import android.hardware.cas.ICas;
import android.hardware.cas.ICasListener;
import android.hardware.cas.IMediaCasService;
import android.hardware.cas.Status;
import android.hardware.cas.V1_0.HidlCasPluginDescriptor;
import android.hardware.cas.V1_0.ICas;
import android.hardware.cas.V1_0.IMediaCasService;
import android.hardware.cas.V1_2.ICasListener;
import android.hardware.cas.V1_2.Status;
import android.media.MediaCasException.*;
import android.media.tv.TvInputService.PriorityHintUseCaseType;
import android.media.tv.tunerresourcemanager.CasSessionRequest;
@@ -39,6 +40,7 @@ import android.os.Looper;
import android.os.Message;
import android.os.Process;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.util.Log;
import android.util.Singleton;
@@ -47,6 +49,7 @@ import com.android.internal.util.FrameworkStatsLog;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@@ -114,9 +117,10 @@ import java.util.Objects;
*/
public final class MediaCas implements AutoCloseable {
private static final String TAG = "MediaCas";
private ICas mICas;
private android.hardware.cas.V1_1.ICas mICasV11;
private android.hardware.cas.V1_2.ICas mICasV12;
private ICas mICas = null;
private android.hardware.cas.V1_0.ICas mICasHidl = null;
private android.hardware.cas.V1_1.ICas mICasHidl11 = null;
private android.hardware.cas.V1_2.ICas mICasHidl12 = null;
private EventListener mListener;
private HandlerThread mHandlerThread;
private EventHandler mEventHandler;
@@ -133,88 +137,84 @@ public final class MediaCas implements AutoCloseable {
*
* @hide
*/
@IntDef(prefix = "SCRAMBLING_MODE_",
value = {SCRAMBLING_MODE_RESERVED, SCRAMBLING_MODE_DVB_CSA1, SCRAMBLING_MODE_DVB_CSA2,
SCRAMBLING_MODE_DVB_CSA3_STANDARD,
SCRAMBLING_MODE_DVB_CSA3_MINIMAL, SCRAMBLING_MODE_DVB_CSA3_ENHANCE,
SCRAMBLING_MODE_DVB_CISSA_V1, SCRAMBLING_MODE_DVB_IDSA,
SCRAMBLING_MODE_MULTI2, SCRAMBLING_MODE_AES128, SCRAMBLING_MODE_AES_ECB,
SCRAMBLING_MODE_AES_SCTE52, SCRAMBLING_MODE_TDES_ECB, SCRAMBLING_MODE_TDES_SCTE52})
@IntDef(
prefix = "SCRAMBLING_MODE_",
value = {
SCRAMBLING_MODE_RESERVED,
SCRAMBLING_MODE_DVB_CSA1,
SCRAMBLING_MODE_DVB_CSA2,
SCRAMBLING_MODE_DVB_CSA3_STANDARD,
SCRAMBLING_MODE_DVB_CSA3_MINIMAL,
SCRAMBLING_MODE_DVB_CSA3_ENHANCE,
SCRAMBLING_MODE_DVB_CISSA_V1,
SCRAMBLING_MODE_DVB_IDSA,
SCRAMBLING_MODE_MULTI2,
SCRAMBLING_MODE_AES128,
SCRAMBLING_MODE_AES_CBC,
SCRAMBLING_MODE_AES_ECB,
SCRAMBLING_MODE_AES_SCTE52,
SCRAMBLING_MODE_TDES_ECB,
SCRAMBLING_MODE_TDES_SCTE52
})
@Retention(RetentionPolicy.SOURCE)
public @interface ScramblingMode {}
/**
* DVB (Digital Video Broadcasting) reserved mode.
*/
public static final int SCRAMBLING_MODE_RESERVED =
android.hardware.cas.V1_2.ScramblingMode.RESERVED;
/**
* DVB (Digital Video Broadcasting) Common Scrambling Algorithm (CSA) 1.
*/
public static final int SCRAMBLING_MODE_DVB_CSA1 =
android.hardware.cas.V1_2.ScramblingMode.DVB_CSA1;
/**
* DVB CSA 2.
*/
public static final int SCRAMBLING_MODE_DVB_CSA2 =
android.hardware.cas.V1_2.ScramblingMode.DVB_CSA2;
/**
* DVB CSA 3 in standard mode.
*/
/** DVB (Digital Video Broadcasting) reserved mode. */
public static final int SCRAMBLING_MODE_RESERVED = android.hardware.cas.ScramblingMode.RESERVED;
/** DVB (Digital Video Broadcasting) Common Scrambling Algorithm (CSA) 1. */
public static final int SCRAMBLING_MODE_DVB_CSA1 = android.hardware.cas.ScramblingMode.DVB_CSA1;
/** DVB CSA 2. */
public static final int SCRAMBLING_MODE_DVB_CSA2 = android.hardware.cas.ScramblingMode.DVB_CSA2;
/** DVB CSA 3 in standard mode. */
public static final int SCRAMBLING_MODE_DVB_CSA3_STANDARD =
android.hardware.cas.V1_2.ScramblingMode.DVB_CSA3_STANDARD;
/**
* DVB CSA 3 in minimally enhanced mode.
*/
android.hardware.cas.ScramblingMode.DVB_CSA3_STANDARD;
/** DVB CSA 3 in minimally enhanced mode. */
public static final int SCRAMBLING_MODE_DVB_CSA3_MINIMAL =
android.hardware.cas.V1_2.ScramblingMode.DVB_CSA3_MINIMAL;
/**
* DVB CSA 3 in fully enhanced mode.
*/
android.hardware.cas.ScramblingMode.DVB_CSA3_MINIMAL;
/** DVB CSA 3 in fully enhanced mode. */
public static final int SCRAMBLING_MODE_DVB_CSA3_ENHANCE =
android.hardware.cas.V1_2.ScramblingMode.DVB_CSA3_ENHANCE;
/**
* DVB Common IPTV Software-oriented Scrambling Algorithm (CISSA) Version 1.
*/
android.hardware.cas.ScramblingMode.DVB_CSA3_ENHANCE;
/** DVB Common IPTV Software-oriented Scrambling Algorithm (CISSA) Version 1. */
public static final int SCRAMBLING_MODE_DVB_CISSA_V1 =
android.hardware.cas.V1_2.ScramblingMode.DVB_CISSA_V1;
/**
* ATIS-0800006 IIF Default Scrambling Algorithm (IDSA).
*/
public static final int SCRAMBLING_MODE_DVB_IDSA =
android.hardware.cas.V1_2.ScramblingMode.DVB_IDSA;
/**
* A symmetric key algorithm.
*/
public static final int SCRAMBLING_MODE_MULTI2 =
android.hardware.cas.V1_2.ScramblingMode.MULTI2;
/**
* Advanced Encryption System (AES) 128-bit Encryption mode.
*/
public static final int SCRAMBLING_MODE_AES128 =
android.hardware.cas.V1_2.ScramblingMode.AES128;
/**
* Advanced Encryption System (AES) Electronic Code Book (ECB) mode.
*/
public static final int SCRAMBLING_MODE_AES_ECB =
android.hardware.cas.V1_2.ScramblingMode.AES_ECB;
android.hardware.cas.ScramblingMode.DVB_CISSA_V1;
/** ATIS-0800006 IIF Default Scrambling Algorithm (IDSA). */
public static final int SCRAMBLING_MODE_DVB_IDSA = android.hardware.cas.ScramblingMode.DVB_IDSA;
/** A symmetric key algorithm. */
public static final int SCRAMBLING_MODE_MULTI2 = android.hardware.cas.ScramblingMode.MULTI2;
/** Advanced Encryption System (AES) 128-bit Encryption mode. */
public static final int SCRAMBLING_MODE_AES128 = android.hardware.cas.ScramblingMode.AES128;
/** Advanced Encryption System (AES) Cipher Block Chaining (CBC) mode. */
public static final int SCRAMBLING_MODE_AES_CBC = android.hardware.cas.ScramblingMode.AES_CBC;
/** Advanced Encryption System (AES) Electronic Code Book (ECB) mode. */
public static final int SCRAMBLING_MODE_AES_ECB = android.hardware.cas.ScramblingMode.AES_ECB;
/**
* Advanced Encryption System (AES) Society of Cable Telecommunications Engineers (SCTE) 52
* mode.
*/
public static final int SCRAMBLING_MODE_AES_SCTE52 =
android.hardware.cas.V1_2.ScramblingMode.AES_SCTE52;
/**
* Triple Data Encryption Algorithm (TDES) Electronic Code Book (ECB) mode.
*/
public static final int SCRAMBLING_MODE_TDES_ECB =
android.hardware.cas.V1_2.ScramblingMode.TDES_ECB;
android.hardware.cas.ScramblingMode.AES_SCTE52;
/** Triple Data Encryption Algorithm (TDES) Electronic Code Book (ECB) mode. */
public static final int SCRAMBLING_MODE_TDES_ECB = android.hardware.cas.ScramblingMode.TDES_ECB;
/**
* Triple Data Encryption Algorithm (TDES) Society of Cable Telecommunications Engineers (SCTE)
* 52 mode.
*/
public static final int SCRAMBLING_MODE_TDES_SCTE52 =
android.hardware.cas.V1_2.ScramblingMode.TDES_SCTE52;
android.hardware.cas.ScramblingMode.TDES_SCTE52;
/**
* Usages used to open cas sessions.
@@ -226,25 +226,21 @@ public final class MediaCas implements AutoCloseable {
SESSION_USAGE_TIMESHIFT})
@Retention(RetentionPolicy.SOURCE)
public @interface SessionUsage {}
/**
* Cas session is used to descramble live streams.
*/
public static final int SESSION_USAGE_LIVE = android.hardware.cas.V1_2.SessionIntent.LIVE;
/**
* Cas session is used to descramble recoreded streams.
*/
public static final int SESSION_USAGE_PLAYBACK =
android.hardware.cas.V1_2.SessionIntent.PLAYBACK;
/**
* Cas session is used to descramble live streams and encrypt local recorded content
*/
public static final int SESSION_USAGE_RECORD = android.hardware.cas.V1_2.SessionIntent.RECORD;
/** Cas session is used to descramble live streams. */
public static final int SESSION_USAGE_LIVE = android.hardware.cas.SessionIntent.LIVE;
/** Cas session is used to descramble recoreded streams. */
public static final int SESSION_USAGE_PLAYBACK = android.hardware.cas.SessionIntent.PLAYBACK;
/** Cas session is used to descramble live streams and encrypt local recorded content */
public static final int SESSION_USAGE_RECORD = android.hardware.cas.SessionIntent.RECORD;
/**
* Cas session is used to descramble live streams , encrypt local recorded content and playback
* local encrypted content.
*/
public static final int SESSION_USAGE_TIMESHIFT =
android.hardware.cas.V1_2.SessionIntent.TIMESHIFT;
public static final int SESSION_USAGE_TIMESHIFT = android.hardware.cas.SessionIntent.TIMESHIFT;
/**
* Plugin status events sent from cas system.
@@ -261,63 +257,90 @@ public final class MediaCas implements AutoCloseable {
* physical CAS modules.
*/
public static final int PLUGIN_STATUS_PHYSICAL_MODULE_CHANGED =
android.hardware.cas.V1_2.StatusEvent.PLUGIN_PHYSICAL_MODULE_CHANGED;
/**
* The event to indicate that the number of CAS system's session is changed.
*/
android.hardware.cas.StatusEvent.PLUGIN_PHYSICAL_MODULE_CHANGED;
/** The event to indicate that the number of CAS system's session is changed. */
public static final int PLUGIN_STATUS_SESSION_NUMBER_CHANGED =
android.hardware.cas.V1_2.StatusEvent.PLUGIN_SESSION_NUMBER_CHANGED;
android.hardware.cas.StatusEvent.PLUGIN_SESSION_NUMBER_CHANGED;
private static final Singleton<IMediaCasService> sService = new Singleton<IMediaCasService>() {
@Override
protected IMediaCasService create() {
try {
Log.d(TAG, "Trying to get cas@1.2 service");
android.hardware.cas.V1_2.IMediaCasService serviceV12 =
android.hardware.cas.V1_2.IMediaCasService.getService(true /*wait*/);
if (serviceV12 != null) {
return serviceV12;
}
} catch (Exception eV1_2) {
Log.d(TAG, "Failed to get cas@1.2 service");
}
try {
Log.d(TAG, "Trying to get cas@1.1 service");
android.hardware.cas.V1_1.IMediaCasService serviceV11 =
android.hardware.cas.V1_1.IMediaCasService.getService(true /*wait*/);
if (serviceV11 != null) {
return serviceV11;
private static final Singleton<IMediaCasService> sService =
new Singleton<IMediaCasService>() {
@Override
protected IMediaCasService create() {
try {
Log.d(TAG, "Trying to get AIDL service");
IMediaCasService serviceAidl =
IMediaCasService.Stub.asInterface(
ServiceManager.getService(
IMediaCasService.DESCRIPTOR + "/default"));
if (serviceAidl != null) {
return serviceAidl;
}
} catch (Exception eAidl) {
Log.d(TAG, "Failed to get cas AIDL service");
}
} catch (Exception eV1_1) {
Log.d(TAG, "Failed to get cas@1.1 service");
}
return null;
}
};
try {
Log.d(TAG, "Trying to get cas@1.0 service");
return IMediaCasService.getService(true /*wait*/);
} catch (Exception eV1_0) {
Log.d(TAG, "Failed to get cas@1.0 service");
}
private static final Singleton<android.hardware.cas.V1_0.IMediaCasService> sServiceHidl =
new Singleton<android.hardware.cas.V1_0.IMediaCasService>() {
@Override
protected android.hardware.cas.V1_0.IMediaCasService create() {
try {
Log.d(TAG, "Trying to get cas@1.2 service");
android.hardware.cas.V1_2.IMediaCasService serviceV12 =
android.hardware.cas.V1_2.IMediaCasService.getService(
true /*wait*/);
if (serviceV12 != null) {
return serviceV12;
}
} catch (Exception eV1_2) {
Log.d(TAG, "Failed to get cas@1.2 service");
}
return null;
}
};
try {
Log.d(TAG, "Trying to get cas@1.1 service");
android.hardware.cas.V1_1.IMediaCasService serviceV11 =
android.hardware.cas.V1_1.IMediaCasService.getService(
true /*wait*/);
if (serviceV11 != null) {
return serviceV11;
}
} catch (Exception eV1_1) {
Log.d(TAG, "Failed to get cas@1.1 service");
}
try {
Log.d(TAG, "Trying to get cas@1.0 service");
return android.hardware.cas.V1_0.IMediaCasService.getService(true /*wait*/);
} catch (Exception eV1_0) {
Log.d(TAG, "Failed to get cas@1.0 service");
}
return null;
}
};
static IMediaCasService getService() {
return sService.get();
}
static android.hardware.cas.V1_0.IMediaCasService getServiceHidl() {
return sServiceHidl.get();
}
private void validateInternalStates() {
if (mICas == null) {
if (mICas == null && mICasHidl == null) {
throw new IllegalStateException();
}
}
private void cleanupAndRethrowIllegalState() {
mICas = null;
mICasV11 = null;
mICasV12 = null;
mICasHidl = null;
mICasHidl11 = null;
mICasHidl12 = null;
throw new IllegalStateException();
}
@@ -341,7 +364,7 @@ public final class MediaCas implements AutoCloseable {
toBytes((ArrayList<Byte>) msg.obj));
} else if (msg.what == MSG_CAS_SESSION_EVENT) {
Bundle bundle = msg.getData();
ArrayList<Byte> sessionId = toByteArray(bundle.getByteArray(SESSION_KEY));
byte[] sessionId = bundle.getByteArray(SESSION_KEY);
mListener.onSessionEvent(MediaCas.this,
createFromSessionId(sessionId), msg.arg1, msg.arg2,
bundle.getByteArray(DATA_KEY));
@@ -357,40 +380,94 @@ public final class MediaCas implements AutoCloseable {
}
}
private final ICasListener.Stub mBinder = new ICasListener.Stub() {
@Override
public void onEvent(int event, int arg, @Nullable ArrayList<Byte> data)
throws RemoteException {
if (mEventHandler != null) {
mEventHandler.sendMessage(mEventHandler.obtainMessage(
EventHandler.MSG_CAS_EVENT, event, arg, data));
}
}
@Override
public void onSessionEvent(@NonNull ArrayList<Byte> sessionId,
int event, int arg, @Nullable ArrayList<Byte> data)
throws RemoteException {
if (mEventHandler != null) {
Message msg = mEventHandler.obtainMessage();
msg.what = EventHandler.MSG_CAS_SESSION_EVENT;
msg.arg1 = event;
msg.arg2 = arg;
Bundle bundle = new Bundle();
bundle.putByteArray(EventHandler.SESSION_KEY, toBytes(sessionId));
bundle.putByteArray(EventHandler.DATA_KEY, toBytes(data));
msg.setData(bundle);
mEventHandler.sendMessage(msg);
}
}
@Override
public void onStatusUpdate(byte status, int arg)
throws RemoteException {
if (mEventHandler != null) {
mEventHandler.sendMessage(mEventHandler.obtainMessage(
EventHandler.MSG_CAS_STATUS_EVENT, status, arg));
}
}
};
private final ICasListener.Stub mBinder =
new ICasListener.Stub() {
@Override
public void onEvent(int event, int arg, byte[] data) throws RemoteException {
if (mEventHandler != null) {
mEventHandler.sendMessage(
mEventHandler.obtainMessage(
EventHandler.MSG_CAS_EVENT, event, arg, data));
}
}
@Override
public void onSessionEvent(byte[] sessionId, int event, int arg, byte[] data)
throws RemoteException {
if (mEventHandler != null) {
Message msg = mEventHandler.obtainMessage();
msg.what = EventHandler.MSG_CAS_SESSION_EVENT;
msg.arg1 = event;
msg.arg2 = arg;
Bundle bundle = new Bundle();
bundle.putByteArray(EventHandler.SESSION_KEY, sessionId);
bundle.putByteArray(EventHandler.DATA_KEY, data);
msg.setData(bundle);
mEventHandler.sendMessage(msg);
}
}
@Override
public void onStatusUpdate(byte status, int arg) throws RemoteException {
if (mEventHandler != null) {
mEventHandler.sendMessage(
mEventHandler.obtainMessage(
EventHandler.MSG_CAS_STATUS_EVENT, status, arg));
}
}
@Override
public synchronized String getInterfaceHash() throws android.os.RemoteException {
return ICasListener.Stub.HASH;
}
@Override
public int getInterfaceVersion() throws android.os.RemoteException {
return ICasListener.Stub.VERSION;
}
};
private final android.hardware.cas.V1_2.ICasListener.Stub mBinderHidl =
new android.hardware.cas.V1_2.ICasListener.Stub() {
@Override
public void onEvent(int event, int arg, @Nullable ArrayList<Byte> data)
throws RemoteException {
if (mEventHandler != null) {
mEventHandler.sendMessage(
mEventHandler.obtainMessage(
EventHandler.MSG_CAS_EVENT, event, arg, data));
}
}
@Override
public void onSessionEvent(
@NonNull ArrayList<Byte> sessionId,
int event,
int arg,
@Nullable ArrayList<Byte> data)
throws RemoteException {
if (mEventHandler != null) {
Message msg = mEventHandler.obtainMessage();
msg.what = EventHandler.MSG_CAS_SESSION_EVENT;
msg.arg1 = event;
msg.arg2 = arg;
Bundle bundle = new Bundle();
bundle.putByteArray(EventHandler.SESSION_KEY, toBytes(sessionId));
bundle.putByteArray(EventHandler.DATA_KEY, toBytes(data));
msg.setData(bundle);
mEventHandler.sendMessage(msg);
}
}
@Override
public void onStatusUpdate(byte status, int arg) throws RemoteException {
if (mEventHandler != null) {
mEventHandler.sendMessage(
mEventHandler.obtainMessage(
EventHandler.MSG_CAS_STATUS_EVENT, status, arg));
}
}
};
private final TunerResourceManager.ResourcesReclaimListener mResourceListener =
new TunerResourceManager.ResourcesReclaimListener() {
@@ -422,6 +499,11 @@ public final class MediaCas implements AutoCloseable {
mName = null;
}
PluginDescriptor(@NonNull AidlCasPluginDescriptor descriptor) {
mCASystemId = descriptor.caSystemId;
mName = descriptor.name;
}
PluginDescriptor(@NonNull HidlCasPluginDescriptor descriptor) {
mCASystemId = descriptor.caSystemId;
mName = descriptor.name;
@@ -467,19 +549,20 @@ public final class MediaCas implements AutoCloseable {
}
return data;
}
/**
* Class for an open session with the CA system.
*/
public final class Session implements AutoCloseable {
final ArrayList<Byte> mSessionId;
final byte[] mSessionId;
boolean mIsClosed = false;
Session(@NonNull ArrayList<Byte> sessionId) {
mSessionId = new ArrayList<Byte>(sessionId);
Session(@NonNull byte[] sessionId) {
mSessionId = sessionId;
}
private void validateSessionInternalStates() {
if (mICas == null) {
if (mICas == null && mICasHidl == null) {
throw new IllegalStateException();
}
if (mIsClosed) {
@@ -496,7 +579,7 @@ public final class MediaCas implements AutoCloseable {
*/
public boolean equals(Object obj) {
if (obj instanceof Session) {
return mSessionId.equals(((Session) obj).mSessionId);
return Arrays.equals(mSessionId, ((Session) obj).mSessionId);
}
return false;
}
@@ -515,8 +598,13 @@ public final class MediaCas implements AutoCloseable {
validateSessionInternalStates();
try {
MediaCasException.throwExceptionIfNeeded(
mICas.setSessionPrivateData(mSessionId, toByteArray(data, 0, data.length)));
if (mICas != null) {
mICas.setSessionPrivateData(mSessionId, data);
} else {
MediaCasException.throwExceptionIfNeeded(
mICasHidl.setSessionPrivateData(
toByteArray(mSessionId), toByteArray(data, 0, data.length)));
}
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -539,8 +627,13 @@ public final class MediaCas implements AutoCloseable {
validateSessionInternalStates();
try {
MediaCasException.throwExceptionIfNeeded(
mICas.processEcm(mSessionId, toByteArray(data, offset, length)));
if (mICas != null) {
mICas.processEcm(mSessionId, data);
} else {
MediaCasException.throwExceptionIfNeeded(
mICasHidl.processEcm(
toByteArray(mSessionId), toByteArray(data, offset, length)));
}
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -576,15 +669,23 @@ public final class MediaCas implements AutoCloseable {
public void sendSessionEvent(int event, int arg, @Nullable byte[] data)
throws MediaCasException {
validateSessionInternalStates();
if (mICas != null) {
try {
mICas.sendSessionEvent(mSessionId, event, arg, data);
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
}
if (mICasV11 == null) {
if (mICasHidl11 == null) {
Log.d(TAG, "Send Session Event isn't supported by cas@1.0 interface");
throw new UnsupportedCasException("Send Session Event is not supported");
}
try {
MediaCasException.throwExceptionIfNeeded(
mICasV11.sendSessionEvent(mSessionId, event, arg, toByteArray(data)));
mICasHidl11.sendSessionEvent(
toByteArray(mSessionId), event, arg, toByteArray(data)));
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -600,7 +701,7 @@ public final class MediaCas implements AutoCloseable {
@NonNull
public byte[] getSessionId() {
validateSessionInternalStates();
return toBytes(mSessionId);
return mSessionId;
}
/**
@@ -613,8 +714,12 @@ public final class MediaCas implements AutoCloseable {
public void close() {
validateSessionInternalStates();
try {
MediaCasStateException.throwExceptionIfNeeded(
mICas.closeSession(mSessionId));
if (mICas != null) {
mICas.closeSession(mSessionId);
} else {
MediaCasStateException.throwExceptionIfNeeded(
mICasHidl.closeSession(toByteArray(mSessionId)));
}
mIsClosed = true;
removeSessionFromResourceMap(this);
} catch (RemoteException e) {
@@ -623,8 +728,8 @@ public final class MediaCas implements AutoCloseable {
}
}
Session createFromSessionId(@NonNull ArrayList<Byte> sessionId) {
if (sessionId == null || sessionId.size() == 0) {
Session createFromSessionId(byte[] sessionId) {
if (sessionId == null || sessionId.length == 0) {
return null;
}
return new Session(sessionId);
@@ -638,11 +743,19 @@ public final class MediaCas implements AutoCloseable {
* @return Whether the specified CA system is supported on this device.
*/
public static boolean isSystemIdSupported(int CA_system_id) {
IMediaCasService service = getService();
IMediaCasService service = sService.get();
if (service != null) {
try {
return service.isSystemIdSupported(CA_system_id);
} catch (RemoteException e) {
return false;
}
}
android.hardware.cas.V1_0.IMediaCasService serviceHidl = sServiceHidl.get();
if (serviceHidl != null) {
try {
return serviceHidl.isSystemIdSupported(CA_system_id);
} catch (RemoteException e) {
}
}
@@ -655,12 +768,26 @@ public final class MediaCas implements AutoCloseable {
* @return an array of descriptors for the available CA plugins.
*/
public static PluginDescriptor[] enumeratePlugins() {
IMediaCasService service = getService();
IMediaCasService service = sService.get();
if (service != null) {
try {
ArrayList<HidlCasPluginDescriptor> descriptors =
service.enumeratePlugins();
AidlCasPluginDescriptor[] descriptors = service.enumeratePlugins();
if (descriptors.length == 0) {
return null;
}
PluginDescriptor[] results = new PluginDescriptor[descriptors.length];
for (int i = 0; i < results.length; i++) {
results[i] = new PluginDescriptor(descriptors[i]);
}
return results;
} catch (RemoteException e) {
}
}
android.hardware.cas.V1_0.IMediaCasService serviceHidl = sServiceHidl.get();
if (serviceHidl != null) {
try {
ArrayList<HidlCasPluginDescriptor> descriptors = serviceHidl.enumeratePlugins();
if (descriptors.size() == 0) {
return null;
}
@@ -680,29 +807,40 @@ public final class MediaCas implements AutoCloseable {
mCasSystemId = casSystemId;
mUserId = Process.myUid();
IMediaCasService service = getService();
android.hardware.cas.V1_2.IMediaCasService serviceV12 =
android.hardware.cas.V1_2.IMediaCasService.castFrom(service);
if (serviceV12 == null) {
android.hardware.cas.V1_1.IMediaCasService serviceV11 =
android.hardware.cas.V1_1.IMediaCasService.castFrom(service);
if (serviceV11 == null) {
Log.d(TAG, "Used cas@1_0 interface to create plugin");
mICas = service.createPlugin(casSystemId, mBinder);
} else {
Log.d(TAG, "Used cas@1.1 interface to create plugin");
mICas = mICasV11 = serviceV11.createPluginExt(casSystemId, mBinder);
}
if (service != null) {
Log.d(TAG, "Use CAS AIDL interface to create plugin");
mICas = service.createPlugin(casSystemId, mBinder);
} else {
Log.d(TAG, "Used cas@1.2 interface to create plugin");
mICas = mICasV11 = mICasV12 =
android.hardware.cas.V1_2.ICas
.castFrom(serviceV12.createPluginExt(casSystemId, mBinder));
android.hardware.cas.V1_0.IMediaCasService serviceV10 = getServiceHidl();
android.hardware.cas.V1_2.IMediaCasService serviceV12 =
android.hardware.cas.V1_2.IMediaCasService.castFrom(serviceV10);
if (serviceV12 == null) {
android.hardware.cas.V1_1.IMediaCasService serviceV11 =
android.hardware.cas.V1_1.IMediaCasService.castFrom(serviceV10);
if (serviceV11 == null) {
Log.d(TAG, "Used cas@1_0 interface to create plugin");
mICasHidl = serviceV10.createPlugin(casSystemId, mBinderHidl);
} else {
Log.d(TAG, "Used cas@1.1 interface to create plugin");
mICasHidl =
mICasHidl11 = serviceV11.createPluginExt(casSystemId, mBinderHidl);
}
} else {
Log.d(TAG, "Used cas@1.2 interface to create plugin");
mICasHidl =
mICasHidl11 =
mICasHidl12 =
android.hardware.cas.V1_2.ICas.castFrom(
serviceV12.createPluginExt(
casSystemId, mBinderHidl));
}
}
} catch(Exception e) {
Log.e(TAG, "Failed to create plugin: " + e);
mICas = null;
mICasHidl = null;
} finally {
if (mICas == null) {
if (mICas == null && mICasHidl == null) {
throw new UnsupportedCasException(
"Unsupported casSystemId " + casSystemId);
}
@@ -783,9 +921,22 @@ public final class MediaCas implements AutoCloseable {
}
IHwBinder getBinder() {
if (mICas != null) {
return null; // Return IHwBinder only for HIDL
}
validateInternalStates();
return mICas.asBinder();
return mICasHidl.asBinder();
}
/**
* Check if the HAL is an AIDL implementation
*
* @hide
*/
public boolean isAidlHal() {
return mICas != null;
}
/**
@@ -886,8 +1037,12 @@ public final class MediaCas implements AutoCloseable {
validateInternalStates();
try {
MediaCasException.throwExceptionIfNeeded(
mICas.setPrivateData(toByteArray(data, 0, data.length)));
if (mICas != null) {
mICas.setPrivateData(data);
} else {
MediaCasException.throwExceptionIfNeeded(
mICasHidl.setPrivateData(toByteArray(data, 0, data.length)));
}
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -899,7 +1054,7 @@ public final class MediaCas implements AutoCloseable {
@Override
public void onValues(int status, ArrayList<Byte> sessionId) {
mStatus = status;
mSession = createFromSessionId(sessionId);
mSession = createFromSessionId(toBytes(sessionId));
}
}
@@ -912,7 +1067,7 @@ public final class MediaCas implements AutoCloseable {
@Override
public void onValues(int status, ArrayList<Byte> sessionId) {
mStatus = status;
mSession = createFromSessionId(sessionId);
mSession = createFromSessionId(toBytes(sessionId));
}
}
@@ -971,15 +1126,19 @@ public final class MediaCas implements AutoCloseable {
int sessionResourceHandle = getSessionResourceHandle();
try {
OpenSessionCallback cb = new OpenSessionCallback();
mICas.openSession(cb);
MediaCasException.throwExceptionIfNeeded(cb.mStatus);
addSessionToResourceMap(cb.mSession, sessionResourceHandle);
Log.d(TAG, "Write Stats Log for succeed to Open Session.");
FrameworkStatsLog
.write(FrameworkStatsLog.TV_CAS_SESSION_OPEN_STATUS, mUserId, mCasSystemId,
if (mICasHidl != null) {
OpenSessionCallback cb = new OpenSessionCallback();
mICasHidl.openSession(cb);
MediaCasException.throwExceptionIfNeeded(cb.mStatus);
addSessionToResourceMap(cb.mSession, sessionResourceHandle);
Log.d(TAG, "Write Stats Log for succeed to Open Session.");
FrameworkStatsLog.write(
FrameworkStatsLog.TV_CAS_SESSION_OPEN_STATUS,
mUserId,
mCasSystemId,
FrameworkStatsLog.TV_CAS_SESSION_OPEN_STATUS__STATE__SUCCEEDED);
return cb.mSession;
return cb.mSession;
}
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -1012,14 +1171,30 @@ public final class MediaCas implements AutoCloseable {
throws MediaCasException {
int sessionResourceHandle = getSessionResourceHandle();
if (mICasV12 == null) {
if (mICas != null) {
try {
byte[] sessionId = mICas.openSession(sessionUsage, scramblingMode);
Session session = createFromSessionId(sessionId);
addSessionToResourceMap(session, sessionResourceHandle);
Log.d(TAG, "Write Stats Log for succeed to Open Session.");
FrameworkStatsLog.write(
FrameworkStatsLog.TV_CAS_SESSION_OPEN_STATUS,
mUserId,
mCasSystemId,
FrameworkStatsLog.TV_CAS_SESSION_OPEN_STATUS__STATE__SUCCEEDED);
return session;
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
}
if (mICasHidl12 == null) {
Log.d(TAG, "Open Session with scrambling mode is only supported by cas@1.2+ interface");
throw new UnsupportedCasException("Open Session with scrambling mode is not supported");
}
try {
OpenSession_1_2_Callback cb = new OpenSession_1_2_Callback();
mICasV12.openSession_1_2(sessionUsage, scramblingMode, cb);
mICasHidl12.openSession_1_2(sessionUsage, scramblingMode, cb);
MediaCasException.throwExceptionIfNeeded(cb.mStatus);
addSessionToResourceMap(cb.mSession, sessionResourceHandle);
Log.d(TAG, "Write Stats Log for succeed to Open Session.");
@@ -1053,8 +1228,12 @@ public final class MediaCas implements AutoCloseable {
validateInternalStates();
try {
MediaCasException.throwExceptionIfNeeded(
mICas.processEmm(toByteArray(data, offset, length)));
if (mICas != null) {
mICas.processEmm(Arrays.copyOfRange(data, offset, length));
} else {
MediaCasException.throwExceptionIfNeeded(
mICasHidl.processEmm(toByteArray(data, offset, length)));
}
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -1092,8 +1271,12 @@ public final class MediaCas implements AutoCloseable {
validateInternalStates();
try {
MediaCasException.throwExceptionIfNeeded(
mICas.sendEvent(event, arg, toByteArray(data)));
if (mICas != null) {
mICas.sendEvent(event, arg, data);
} else {
MediaCasException.throwExceptionIfNeeded(
mICasHidl.sendEvent(event, arg, toByteArray(data)));
}
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -1114,8 +1297,11 @@ public final class MediaCas implements AutoCloseable {
validateInternalStates();
try {
MediaCasException.throwExceptionIfNeeded(
mICas.provision(provisionString));
if (mICas != null) {
mICas.provision(provisionString);
} else {
MediaCasException.throwExceptionIfNeeded(mICasHidl.provision(provisionString));
}
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -1136,8 +1322,12 @@ public final class MediaCas implements AutoCloseable {
validateInternalStates();
try {
MediaCasException.throwExceptionIfNeeded(
mICas.refreshEntitlements(refreshType, toByteArray(refreshData)));
if (mICas != null) {
mICas.refreshEntitlements(refreshType, refreshData);
} else {
MediaCasException.throwExceptionIfNeeded(
mICasHidl.refreshEntitlements(refreshType, toByteArray(refreshData)));
}
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -1163,6 +1353,13 @@ public final class MediaCas implements AutoCloseable {
} finally {
mICas = null;
}
} else if (mICasHidl != null) {
try {
mICasHidl.release();
} catch (RemoteException e) {
} finally {
mICasHidl = mICasHidl11 = mICasHidl12 = null;
}
}
if (mTunerResourceManager != null) {

244
media/java/android/media/MediaDescrambler.java
View File

@@ -17,14 +17,26 @@
package android.media;
import android.annotation.NonNull;
import android.hardware.cas.V1_0.*;
import android.hardware.cas.DestinationBuffer;
import android.hardware.cas.IDescrambler;
import android.hardware.cas.ScramblingControl;
import android.hardware.cas.SharedBuffer;
import android.hardware.cas.SubSample;
import android.hardware.cas.V1_0.IDescramblerBase;
import android.hardware.common.Ashmem;
import android.hardware.common.NativeHandle;
import android.media.MediaCasException.UnsupportedCasException;
import android.os.IHwBinder;
import android.os.ParcelFileDescriptor;
import android.os.RemoteException;
import android.os.ServiceSpecificException;
import android.os.SharedMemory;
import android.system.ErrnoException;
import android.util.Log;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
/**
* MediaDescrambler class can be used in conjunction with {@link android.media.MediaCodec}
@@ -39,7 +51,198 @@ import java.nio.ByteBuffer;
*/
public final class MediaDescrambler implements AutoCloseable {
private static final String TAG = "MediaDescrambler";
private IDescramblerBase mIDescrambler;
private DescramblerWrapper mIDescrambler;
private interface DescramblerWrapper {
IHwBinder asBinder();
int descramble(
@NonNull ByteBuffer srcBuf,
@NonNull ByteBuffer dstBuf,
@NonNull MediaCodec.CryptoInfo cryptoInfo)
throws RemoteException;
boolean requiresSecureDecoderComponent(@NonNull String mime) throws RemoteException;
void setMediaCasSession(byte[] sessionId) throws RemoteException;
void release() throws RemoteException;
}
;
private long getSubsampleInfo(
int numSubSamples,
int[] numBytesOfClearData,
int[] numBytesOfEncryptedData,
SubSample[] subSamples) {
long totalSize = 0;
for (int i = 0; i < numSubSamples; i++) {
totalSize += numBytesOfClearData[i];
subSamples[i].numBytesOfClearData = numBytesOfClearData[i];
totalSize += numBytesOfEncryptedData[i];
subSamples[i].numBytesOfEncryptedData = numBytesOfEncryptedData[i];
}
return totalSize;
}
private ParcelFileDescriptor createSharedMemory(ByteBuffer buffer, String name)
throws RemoteException {
byte[] source = buffer.array();
if (source.length == 0) {
return null;
}
ParcelFileDescriptor fd = null;
try {
SharedMemory ashmem = SharedMemory.create(name == null ? "" : name, source.length);
ByteBuffer ptr = ashmem.mapReadWrite();
ptr.put(buffer);
ashmem.unmap(ptr);
fd = ashmem.getFdDup();
return fd;
} catch (ErrnoException | IOException e) {
throw new RemoteException(e);
}
}
private class AidlDescrambler implements DescramblerWrapper {
IDescrambler mAidlDescrambler;
AidlDescrambler(IDescrambler aidlDescrambler) {
mAidlDescrambler = aidlDescrambler;
}
@Override
public IHwBinder asBinder() {
return null;
}
@Override
public int descramble(
@NonNull ByteBuffer src,
@NonNull ByteBuffer dst,
@NonNull MediaCodec.CryptoInfo cryptoInfo)
throws RemoteException {
SubSample[] subSamples = new SubSample[cryptoInfo.numSubSamples];
long totalLength =
getSubsampleInfo(
cryptoInfo.numSubSamples,
cryptoInfo.numBytesOfClearData,
cryptoInfo.numBytesOfEncryptedData,
subSamples);
SharedBuffer srcBuffer = new SharedBuffer();
DestinationBuffer dstBuffer;
srcBuffer.heapBase = new Ashmem();
srcBuffer.heapBase.fd = createSharedMemory(src, "Descrambler Source Buffer");
srcBuffer.heapBase.size = src.array().length;
if (dst == null) {
dstBuffer = DestinationBuffer.nonsecureMemory(srcBuffer);
} else {
ParcelFileDescriptor pfd =
createSharedMemory(dst, "Descrambler Destination Buffer");
NativeHandle nh = new NativeHandle();
nh.fds = new ParcelFileDescriptor[] {pfd};
nh.ints = new int[] {1}; // Mark 1 since source buffer also uses it?
dstBuffer = DestinationBuffer.secureMemory(nh);
}
@ScramblingControl int control = cryptoInfo.key[0];
return mAidlDescrambler.descramble(
(byte) control,
subSamples,
srcBuffer,
src.position(),
dstBuffer,
dst.position());
}
@Override
public boolean requiresSecureDecoderComponent(@NonNull String mime) throws RemoteException {
return mAidlDescrambler.requiresSecureDecoderComponent(mime);
}
@Override
public void setMediaCasSession(byte[] sessionId) throws RemoteException {
mAidlDescrambler.setMediaCasSession(sessionId);
}
@Override
public void release() throws RemoteException {
mAidlDescrambler.release();
}
}
private class HidlDescrambler implements DescramblerWrapper {
IDescramblerBase mHidlDescrambler;
HidlDescrambler(IDescramblerBase hidlDescrambler) {
mHidlDescrambler = hidlDescrambler;
native_setup(hidlDescrambler.asBinder());
}
@Override
public IHwBinder asBinder() {
return mHidlDescrambler.asBinder();
}
@Override
public int descramble(
@NonNull ByteBuffer srcBuf,
@NonNull ByteBuffer dstBuf,
@NonNull MediaCodec.CryptoInfo cryptoInfo)
throws RemoteException {
try {
return native_descramble(
cryptoInfo.key[0],
cryptoInfo.key[1],
cryptoInfo.numSubSamples,
cryptoInfo.numBytesOfClearData,
cryptoInfo.numBytesOfEncryptedData,
srcBuf,
srcBuf.position(),
srcBuf.limit(),
dstBuf,
dstBuf.position(),
dstBuf.limit());
} catch (ServiceSpecificException e) {
MediaCasStateException.throwExceptionIfNeeded(e.errorCode, e.getMessage());
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
return -1;
}
@Override
public boolean requiresSecureDecoderComponent(@NonNull String mime) throws RemoteException {
return mHidlDescrambler.requiresSecureDecoderComponent(mime);
}
@Override
public void setMediaCasSession(byte[] sessionId) throws RemoteException {
ArrayList<Byte> byteArray = new ArrayList<>();
if (sessionId != null) {
int length = sessionId.length;
byteArray = new ArrayList<Byte>(length);
for (int i = 0; i < length; i++) {
byteArray.add(Byte.valueOf(sessionId[i]));
}
}
MediaCasStateException.throwExceptionIfNeeded(
mHidlDescrambler.setMediaCasSession(byteArray));
}
@Override
public void release() throws RemoteException {
mHidlDescrambler.release();
native_release();
}
}
private final void validateInternalStates() {
if (mIDescrambler == null) {
@@ -61,7 +264,14 @@ public final class MediaDescrambler implements AutoCloseable {
*/
public MediaDescrambler(int CA_system_id) throws UnsupportedCasException {
try {
mIDescrambler = MediaCas.getService().createDescrambler(CA_system_id);
if (MediaCas.getService() != null) {
mIDescrambler =
new AidlDescrambler(MediaCas.getService().createDescrambler(CA_system_id));
} else if (MediaCas.getServiceHidl() != null) {
mIDescrambler =
new HidlDescrambler(
MediaCas.getServiceHidl().createDescrambler(CA_system_id));
}
} catch(Exception e) {
Log.e(TAG, "Failed to create descrambler: " + e);
mIDescrambler = null;
@@ -70,7 +280,6 @@ public final class MediaDescrambler implements AutoCloseable {
throw new UnsupportedCasException("Unsupported CA_system_id " + CA_system_id);
}
}
native_setup(mIDescrambler.asBinder());
}
IHwBinder getBinder() {
@@ -117,8 +326,7 @@ public final class MediaDescrambler implements AutoCloseable {
validateInternalStates();
try {
MediaCasStateException.throwExceptionIfNeeded(
mIDescrambler.setMediaCasSession(session.mSessionId));
mIDescrambler.setMediaCasSession(session.mSessionId);
} catch (RemoteException e) {
cleanupAndRethrowIllegalState();
}
@@ -126,27 +334,31 @@ public final class MediaDescrambler implements AutoCloseable {
/**
* Scramble control value indicating that the samples are not scrambled.
*
* @see #descramble(ByteBuffer, ByteBuffer, android.media.MediaCodec.CryptoInfo)
*/
public static final byte SCRAMBLE_CONTROL_UNSCRAMBLED = 0;
public static final byte SCRAMBLE_CONTROL_UNSCRAMBLED = (byte) ScramblingControl.UNSCRAMBLED;
/**
* Scramble control value reserved and shouldn't be used currently.
*
* @see #descramble(ByteBuffer, ByteBuffer, android.media.MediaCodec.CryptoInfo)
*/
public static final byte SCRAMBLE_CONTROL_RESERVED = 1;
public static final byte SCRAMBLE_CONTROL_RESERVED = (byte) ScramblingControl.RESERVED;
/**
* Scramble control value indicating that the even key is used.
*
* @see #descramble(ByteBuffer, ByteBuffer, android.media.MediaCodec.CryptoInfo)
*/
public static final byte SCRAMBLE_CONTROL_EVEN_KEY = 2;
public static final byte SCRAMBLE_CONTROL_EVEN_KEY = (byte) ScramblingControl.EVENKEY;
/**
* Scramble control value indicating that the odd key is used.
*
* @see #descramble(ByteBuffer, ByteBuffer, android.media.MediaCodec.CryptoInfo)
*/
public static final byte SCRAMBLE_CONTROL_ODD_KEY = 3;
public static final byte SCRAMBLE_CONTROL_ODD_KEY = (byte) ScramblingControl.ODDKEY;
/**
* Scramble flag for a hint indicating that the descrambling request is for
@@ -207,14 +419,7 @@ public final class MediaDescrambler implements AutoCloseable {
}
try {
return native_descramble(
cryptoInfo.key[0],
cryptoInfo.key[1],
cryptoInfo.numSubSamples,
cryptoInfo.numBytesOfClearData,
cryptoInfo.numBytesOfEncryptedData,
srcBuf, srcBuf.position(), srcBuf.limit(),
dstBuf, dstBuf.position(), dstBuf.limit());
return mIDescrambler.descramble(srcBuf, dstBuf, cryptoInfo);
} catch (ServiceSpecificException e) {
MediaCasStateException.throwExceptionIfNeeded(e.errorCode, e.getMessage());
} catch (RemoteException e) {
@@ -233,7 +438,6 @@ public final class MediaDescrambler implements AutoCloseable {
mIDescrambler = null;
}
}
native_release();
}
@Override
@@ -256,4 +460,4 @@ public final class MediaDescrambler implements AutoCloseable {
}
private long mNativeContext;
}
}

11
media/java/android/media/MediaExtractor.java
View File

@@ -36,7 +36,6 @@ import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
@@ -325,14 +324,6 @@ public final class MediaExtractor {
}
}
private ArrayList<Byte> toByteArray(@NonNull byte[] data) {
ArrayList<Byte> byteArray = new ArrayList<Byte>(data.length);
for (int i = 0; i < data.length; i++) {
byteArray.add(i, Byte.valueOf(data[i]));
}
return byteArray;
}
/**
* Retrieves the information about the conditional access system used to scramble
* a track.
@@ -357,7 +348,7 @@ public final class MediaExtractor {
buf.rewind();
final byte[] sessionId = new byte[buf.remaining()];
buf.get(sessionId);
session = mMediaCas.createFromSessionId(toByteArray(sessionId));
session = mMediaCas.createFromSessionId(sessionId);
}
return new CasInfo(systemId, session, privateData);
}