Clear binder identity for UserManager calls (7ebcaef6) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/location/UserInfoStore.java

+30 −13

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@ import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.content.pm.UserInfo;
		import android.os.Binder;
		import android.os.Build;
		import android.os.UserHandle;
		import android.os.UserManager;
		@@ -152,7 +153,7 @@ public class UserInfoStore {
		// this intent is only sent to the current user
		if (mCachedParentUserId == mCurrentUserId) {
		mCachedParentUserId = UserHandle.USER_NULL;
		mCachedProfileUserIds = null;
		mCachedProfileUserIds = new int[]{UserHandle.USER_NULL};
		}
		}

		@@ -185,6 +186,8 @@ public class UserInfoStore {
		} else {
		Preconditions.checkState(mUserManager != null);

		long identity = Binder.clearCallingIdentity();
		try {
		UserInfo userInfo = mUserManager.getProfileParent(userId);
		if (userInfo != null) {
		parentUserId = userInfo.id;
		@@ -195,6 +198,9 @@ public class UserInfoStore {

		// force profiles into cache
		getProfileUserIdsForParentUser(parentUserId);
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		return parentUserId;
		@@ -204,13 +210,24 @@ public class UserInfoStore {
		private int[] getProfileUserIdsForParentUser(@UserIdInt int parentUserId) {
		Preconditions.checkState(mUserManager != null);

		// only assert on debug builds as this is a more expensive check
		if (Build.IS_DEBUGGABLE) {
		long identity = Binder.clearCallingIdentity();
		try {
		Preconditions.checkArgument(mUserManager.getProfileParent(parentUserId) == null);
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		if (parentUserId != mCachedParentUserId) {
		long identity = Binder.clearCallingIdentity();
		try {
		mCachedParentUserId = parentUserId;
		mCachedProfileUserIds = mUserManager.getProfileIdsWithDisabled(parentUserId);
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		return mCachedProfileUserIds;