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Persist permission state for updated apps synchronously.

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Because if we lose the changes, an updated app won't be reconsidered for
new install permissions.

Fixes: 221899913
Test: presubmit
Change-Id: Ib82189b07cf4dfd132be37fb19843d770e871f8c
Merged-In: Ib82189b07cf4dfd132be37fb19843d770e871f8c
This commit is contained in:
Hai Zhang
2022-04-25 20:29:46 +00:00
parent 75eb24817b
commit 36ee4c554b
1 changed files with 16 additions and 5 deletions
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21
services/core/java/com/android/server/pm/permission/PermissionManagerService.java
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@@ -2626,6 +2626,7 @@ public class PermissionManagerService extends IPermissionManager.Stub {
final int[] userIds = filterUserId == UserHandle.USER_ALL ? getAllUserIds()
: new int[] { filterUserId };
boolean installPermissionsChanged = false;
boolean runtimePermissionsRevoked = false;
int[] updatedUserIds = EMPTY_INT_ARRAY;
@@ -2739,7 +2740,7 @@ public class PermissionManagerService extends IPermissionManager.Stub {
UidPermissionState origState = uidState;
boolean changedInstallPermission = false;
boolean installPermissionsChangedForUser = false;
if (replace) {
userState.setInstallPermissionsFixed(ps.name, false);
@@ -2904,7 +2905,7 @@ public class PermissionManagerService extends IPermissionManager.Stub {
&& origState.isPermissionGranted(permName))))) {
// Grant an install permission.
if (uidState.grantPermission(bp)) {
changedInstallPermission = true;
installPermissionsChangedForUser = true;
}
} else if (bp.isRuntime()) {
boolean hardRestricted = bp.isHardRestricted();
@@ -3034,12 +3035,12 @@ public class PermissionManagerService extends IPermissionManager.Stub {
}
}
if (uidState.removePermissionState(bp.getName())) {
changedInstallPermission = true;
installPermissionsChangedForUser = true;
}
}
}
if ((changedInstallPermission || replace)
if ((installPermissionsChangedForUser || replace)
&& !userState.areInstallPermissionsFixed(ps.name)
&& !ps.isSystem() || ps.getPkgState().isUpdatedSystemApp()) {
// This is the first that we have heard about this package, so the
@@ -3048,6 +3049,12 @@ public class PermissionManagerService extends IPermissionManager.Stub {
userState.setInstallPermissionsFixed(ps.name, true);
}
if (installPermissionsChangedForUser) {
installPermissionsChanged = true;
if (replace) {
updatedUserIds = ArrayUtils.appendInt(updatedUserIds, userId);
}
}
updatedUserIds = revokePermissionsNoLongerImplicitLocked(uidState,
pkg.getPackageName(), uidImplicitPermissions, uidTargetSdkVersion, userId,
updatedUserIds);
@@ -3064,8 +3071,12 @@ public class PermissionManagerService extends IPermissionManager.Stub {
// Persist the runtime permissions state for users with changes. If permissions
// were revoked because no app in the shared user declares them we have to
// write synchronously to avoid losing runtime permissions state.
// Also write synchronously if we changed any install permission for an updated app, because
// the install permission state is likely already fixed before update, and if we lose the
// changes here the app won't be reconsidered for newly-added install permissions.
if (callback != null) {
callback.onPermissionUpdated(updatedUserIds, runtimePermissionsRevoked);
callback.onPermissionUpdated(updatedUserIds,
(replace && installPermissionsChanged) || runtimePermissionsRevoked);
}
for (int userId : updatedUserIds) {