Merge "Don't double prompt on booting encrypted device"

3 files changed, 74 insertions, 1 deletions

diff --git a/core/java/android/os/storage/IMountService.java b/core/java/android/os/storage/IMountService.java
index b97734e..4180860 100644
--- a/core/java/android/os/storage/IMountService.java
+++ b/core/java/android/os/storage/IMountService.java
@@ -694,6 +694,36 @@ public interface IMountService extends IInterface {
                 return _result;
             }
 
+            public String getPassword() throws RemoteException {
+                Parcel _data = Parcel.obtain();
+                Parcel _reply = Parcel.obtain();
+                String _result;
+                try {
+                    _data.writeInterfaceToken(DESCRIPTOR);
+                    mRemote.transact(Stub.TRANSACTION_getPassword, _data, _reply, 0);
+                    _reply.readException();
+                    _result = _reply.readString();
+                } finally {
+                    _reply.recycle();
+                    _data.recycle();
+                }
+                return _result;
+            }
+
+            public void clearPassword() throws RemoteException {
+                Parcel _data = Parcel.obtain();
+                Parcel _reply = Parcel.obtain();
+                String _result;
+                try {
+                    _data.writeInterfaceToken(DESCRIPTOR);
+                    mRemote.transact(Stub.TRANSACTION_clearPassword, _data, _reply, 0);
+                    _reply.readException();
+                } finally {
+                    _reply.recycle();
+                    _data.recycle();
+                }
+            }
+
             public StorageVolume[] getVolumeList() throws RemoteException {
                 Parcel _data = Parcel.obtain();
                 Parcel _reply = Parcel.obtain();
@@ -846,7 +876,11 @@ public interface IMountService extends IInterface {
 
         static final int TRANSACTION_mkdirs = IBinder.FIRST_CALL_TRANSACTION + 34;
 
-        static final int TRANSACTION_getPasswordType = IBinder.FIRST_CALL_TRANSACTION + 36;
+        static final int TRANSACTION_getPasswordType = IBinder.FIRST_CALL_TRANSACTION + 35;
+
+        static final int TRANSACTION_getPassword = IBinder.FIRST_CALL_TRANSACTION + 36;
+
+        static final int TRANSACTION_clearPassword = IBinder.FIRST_CALL_TRANSACTION + 37;
 
         /**
          * Cast an IBinder object into an IMountService interface, generating a
@@ -1208,6 +1242,19 @@ public interface IMountService extends IInterface {
                     reply.writeInt(result);
                     return true;
                 }
+                case TRANSACTION_getPassword: {
+                    data.enforceInterface(DESCRIPTOR);
+                    String result = getPassword();
+                    reply.writeNoException();
+                    reply.writeString(result);
+                    return true;
+                }
+                case TRANSACTION_clearPassword: {
+                    data.enforceInterface(DESCRIPTOR);
+                    clearPassword();
+                    reply.writeNoException();
+                    return true;
+                }
             }
             return super.onTransact(code, data, reply, flags);
         }
@@ -1446,4 +1493,15 @@ public interface IMountService extends IInterface {
      * @return PasswordType
      */
     public int getPasswordType() throws RemoteException;
+
+    /**
+     * Get password from vold
+     * @return password or empty string
+     */
+    public String getPassword() throws RemoteException;
+
+    /**
+     * Securely clear password from vold
+     */
+    public void clearPassword() throws RemoteException;
 }
diff --git a/core/java/com/android/internal/widget/ILockSettings.aidl b/core/java/com/android/internal/widget/ILockSettings.aidl
index 91056f1..9501f92 100644
--- a/core/java/com/android/internal/widget/ILockSettings.aidl
+++ b/core/java/com/android/internal/widget/ILockSettings.aidl
@@ -28,6 +28,7 @@ interface ILockSettings {
     boolean checkPattern(in String pattern, int userId);
     void setLockPassword(in String password, int userId);
     boolean checkPassword(in String password, int userId);
+    boolean checkVoldPassword(int userId);
     boolean havePattern(int userId);
     boolean havePassword(int userId);
     void removeUser(int userId);
diff --git a/core/java/com/android/internal/widget/LockPatternUtils.java b/core/java/com/android/internal/widget/LockPatternUtils.java
index 4752da5..b9bc54d 100644
--- a/core/java/com/android/internal/widget/LockPatternUtils.java
+++ b/core/java/com/android/internal/widget/LockPatternUtils.java
@@ -333,6 +333,20 @@ public class LockPatternUtils {
     }
 
     /**
+     * Check to see if vold already has the password.
+     * Note that this also clears vold's copy of the password.
+     * @return Whether the vold password matches or not.
+     */
+    public boolean checkVoldPassword() {
+        final int userId = getCurrentOrCallingUserId();
+        try {
+            return getLockSettings().checkVoldPassword(userId);
+        } catch (RemoteException re) {
+            return false;
+        }
+    }
+
+    /**
      * Check to see if a password matches any of the passwords stored in the
      * password history.
      *