36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2012 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <cutils/multiuser.h>
|
|
|
|
userid_t multiuser_get_user_id(uid_t uid) {
|
|
return uid / MULTIUSER_APP_PER_USER_RANGE;
|
|
}
|
|
|
|
appid_t multiuser_get_app_id(uid_t uid) {
|
|
return uid % MULTIUSER_APP_PER_USER_RANGE;
|
|
}
|
|
|
|
uid_t multiuser_get_uid(userid_t userId, appid_t appId) {
|
|
return userId * MULTIUSER_APP_PER_USER_RANGE + (appId % MULTIUSER_APP_PER_USER_RANGE);
|
|
}
|
|
|
|
appid_t multiuser_get_shared_app_gid(uid_t id) {
|
|
return MULTIUSER_FIRST_SHARED_APPLICATION_GID + (id % MULTIUSER_APP_PER_USER_RANGE)
|
|
- MULTIUSER_FIRST_APPLICATION_UID;
|
|
|
|
}
|