diff options
Diffstat (limited to 'services/java/com/android/server/am/ActivityManagerService.java')
| -rw-r--r-- | services/java/com/android/server/am/ActivityManagerService.java | 84 |
1 files changed, 64 insertions, 20 deletions
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java index 05f38a5..375f7f1 100644 --- a/services/java/com/android/server/am/ActivityManagerService.java +++ b/services/java/com/android/server/am/ActivityManagerService.java @@ -2305,19 +2305,48 @@ public final class ActivityManagerService extends ActivityManagerNative Intent intent, String resolvedType, IBinder resultTo, String resultWho, int requestCode, int startFlags, String profileFile, ParcelFileDescriptor profileFd, Bundle options) { + return startActivityAsUser(caller, intent, resolvedType, resultTo, resultWho, requestCode, + startFlags, profileFile, profileFd, options, UserId.getCallingUserId()); + } + + public final int startActivityAsUser(IApplicationThread caller, + Intent intent, String resolvedType, IBinder resultTo, + String resultWho, int requestCode, int startFlags, + String profileFile, ParcelFileDescriptor profileFd, Bundle options, int userId) { enforceNotIsolatedCaller("startActivity"); - int userId = 0; - if (intent.getCategories() != null && intent.getCategories().contains(Intent.CATEGORY_HOME)) { - // Requesting home, set the identity to the current user - // HACK! - userId = mCurrentUserId; + if (userId != UserId.getCallingUserId()) { + // Requesting a different user, make sure that they have the permission + if (checkComponentPermission( + android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, + Binder.getCallingPid(), Binder.getCallingUid(), -1, true) + == PackageManager.PERMISSION_GRANTED) { + // Translate to the current user id, if caller wasn't aware + if (userId == UserId.USER_CURRENT) { + userId = mCurrentUserId; + } + } else { + String msg = "Permission Denial: " + + "Request to startActivity as user " + userId + + " but is calling from user " + UserId.getCallingUserId() + + "; this requires " + + android.Manifest.permission.INTERACT_ACROSS_USERS_FULL; + Slog.w(TAG, msg); + throw new SecurityException(msg); + } } else { - // TODO: Fix this in a better way - calls coming from SystemUI should probably carry - // the current user's userId - if (Binder.getCallingUid() < Process.FIRST_APPLICATION_UID) { - userId = 0; + if (intent.getCategories() != null + && intent.getCategories().contains(Intent.CATEGORY_HOME)) { + // Requesting home, set the identity to the current user + // HACK! + userId = mCurrentUserId; } else { - userId = Binder.getOrigCallingUser(); + // TODO: Fix this in a better way - calls coming from SystemUI should probably carry + // the current user's userId + if (Binder.getCallingUid() < Process.FIRST_APPLICATION_UID) { + userId = 0; + } else { + userId = Binder.getOrigCallingUser(); + } } } return mMainStack.startActivityMayWait(caller, -1, intent, resolvedType, @@ -5470,13 +5499,28 @@ public final class ActivityManagerService extends ActivityManagerNative } public List<ActivityManager.RecentTaskInfo> getRecentTasks(int maxNum, - int flags) { + int flags, int userId) { final int callingUid = Binder.getCallingUid(); - // If it's the system uid asking, then use the current user id. - // TODO: Make sure that there aren't any other legitimate calls from the system uid that - // require the entire list. - final int callingUserId = callingUid == Process.SYSTEM_UID - ? mCurrentUserId : UserId.getUserId(callingUid); + if (userId != UserId.getCallingUserId()) { + // Check if the caller is holding permissions for cross-user requests. + if (checkComponentPermission( + android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, + Binder.getCallingPid(), callingUid, -1, true) + != PackageManager.PERMISSION_GRANTED) { + String msg = "Permission Denial: " + + "Request to get recent tasks for user " + userId + + " but is calling from user " + UserId.getUserId(callingUid) + + "; this requires " + + android.Manifest.permission.INTERACT_ACROSS_USERS_FULL; + Slog.w(TAG, msg); + throw new SecurityException(msg); + } else { + if (userId == UserId.USER_CURRENT) { + userId = mCurrentUserId; + } + } + } + synchronized (this) { enforceCallingPermission(android.Manifest.permission.GET_TASKS, "getRecentTasks()"); @@ -5485,7 +5529,7 @@ public final class ActivityManagerService extends ActivityManagerNative == PackageManager.PERMISSION_GRANTED; IPackageManager pm = AppGlobals.getPackageManager(); - + final int N = mRecentTasks.size(); ArrayList<ActivityManager.RecentTaskInfo> res = new ArrayList<ActivityManager.RecentTaskInfo>( @@ -5493,7 +5537,7 @@ public final class ActivityManagerService extends ActivityManagerNative for (int i=0; i<N && maxNum > 0; i++) { TaskRecord tr = mRecentTasks.get(i); // Only add calling user's recent tasks - if (tr.userId != callingUserId) continue; + if (tr.userId != userId) continue; // Return the entry if desired by the caller. We always return // the first entry, because callers always expect this to be the // foreground app. We may filter others if the caller has @@ -5521,13 +5565,13 @@ public final class ActivityManagerService extends ActivityManagerNative // Check whether this activity is currently available. try { if (rti.origActivity != null) { - if (pm.getActivityInfo(rti.origActivity, 0, callingUserId) + if (pm.getActivityInfo(rti.origActivity, 0, userId) == null) { continue; } } else if (rti.baseIntent != null) { if (pm.queryIntentActivities(rti.baseIntent, - null, 0, callingUserId) == null) { + null, 0, userId) == null) { continue; } } |