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Jeff Sharkey9509d272012-08-07 17:56:30 -07001/*
2 * Copyright (C) 2012 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
Jeff Sharkey9509d272012-08-07 17:56:30 -070017#include <cutils/multiuser.h>
18
Jeff Sharkey96851942012-08-27 15:03:37 -070019userid_t multiuser_get_user_id(uid_t uid) {
Jeff Sharkey9509d272012-08-07 17:56:30 -070020 return uid / MULTIUSER_APP_PER_USER_RANGE;
21}
22
Jeff Sharkey96851942012-08-27 15:03:37 -070023appid_t multiuser_get_app_id(uid_t uid) {
Jeff Sharkey9509d272012-08-07 17:56:30 -070024 return uid % MULTIUSER_APP_PER_USER_RANGE;
25}
26
Jeff Sharkey96851942012-08-27 15:03:37 -070027uid_t multiuser_get_uid(userid_t userId, appid_t appId) {
Jeff Sharkey9509d272012-08-07 17:56:30 -070028 return userId * MULTIUSER_APP_PER_USER_RANGE + (appId % MULTIUSER_APP_PER_USER_RANGE);
29}