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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 syntax = "proto2";
     18 
     19 option java_package = "android";
     20 option java_multiple_files = true;
     21 
     22 import "google/protobuf/descriptor.proto";
     23 
     24 package android;
     25 
     26 // TODO: It's better to track this by semantic types and set policy for those.
     27 // Do this for now to bootstrap the tools.
     28 enum Destination {
     29     // Fields or messages annotated with DEST_LOCAL must never be
     30     // extracted from the device automatically. They can be accessed
     31     // by tools on the developer's workstation, and if they are sent
     32     // to another device that must be by the user, with a PII warning. (TBD)
     33     DEST_LOCAL = 0;
     34 
     35     // Fields or messages annotated with DEST_EXPLICIT can be sent
     36     // off the device with an explicit user action.
     37     DEST_EXPLICIT = 1;
     38 
     39     // Fields or messages annotated with DEST_LOCAL can be sent by
     40     // automatic means, without per-sending user consent. The user
     41     // still must have previously accepted a consent to share this
     42     // information.
     43     DEST_AUTOMATIC = 2;
     44 
     45     // There is no more permissive option than DEST_AUTOMATIC.
     46 }
     47 
     48 message PrivacyFlags {
     49   optional Destination dest = 1  [
     50       default = DEST_LOCAL
     51   ];
     52 }
     53 
     54 extend google.protobuf.FieldOptions {
     55     // Flags for automatically filtering statistics
     56     optional PrivacyFlags privacy = 102672883;
     57 }
     58