fb78816593
Method is needed for further use in statsd mapping process. Bug: 217695033 Test: atest installd_service_test Change-Id: I508a58da5f8d2e32264002db515425134d18aece
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <cutils/multiuser.h>
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#include <private/android_filesystem_config.h>
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userid_t multiuser_get_user_id(uid_t uid) {
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return uid / AID_USER_OFFSET;
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}
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appid_t multiuser_get_app_id(uid_t uid) {
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return uid % AID_USER_OFFSET;
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}
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uid_t multiuser_get_uid(userid_t user_id, appid_t app_id) {
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return (user_id * AID_USER_OFFSET) + (app_id % AID_USER_OFFSET);
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}
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uid_t multiuser_get_sdk_sandbox_uid(userid_t user_id, appid_t app_id) {
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int sdk_sandbox_offset = AID_SDK_SANDBOX_PROCESS_START - AID_APP_START;
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if (app_id >= AID_APP_START && app_id <= AID_APP_END) {
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return (user_id * AID_USER_OFFSET) + (app_id % AID_USER_OFFSET) + sdk_sandbox_offset;
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} else {
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return -1;
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}
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}
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uid_t multiuser_convert_sdk_sandbox_to_app_uid(uid_t uid) {
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appid_t app_id = multiuser_get_app_id(uid);
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int sdk_sandbox_offset = AID_SDK_SANDBOX_PROCESS_START - AID_APP_START;
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if (app_id >= AID_SDK_SANDBOX_PROCESS_START && app_id <= AID_SDK_SANDBOX_PROCESS_END) {
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return uid - sdk_sandbox_offset;
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} else {
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return -1;
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}
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}
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gid_t multiuser_get_cache_gid(userid_t user_id, appid_t app_id) {
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if (app_id >= AID_APP_START && app_id <= AID_APP_END) {
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return multiuser_get_uid(user_id, (app_id - AID_APP_START) + AID_CACHE_GID_START);
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} else {
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return -1;
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}
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}
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gid_t multiuser_get_ext_gid(userid_t user_id, appid_t app_id) {
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if (app_id >= AID_APP_START && app_id <= AID_APP_END) {
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return multiuser_get_uid(user_id, (app_id - AID_APP_START) + AID_EXT_GID_START);
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} else {
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return -1;
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}
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}
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gid_t multiuser_get_ext_cache_gid(userid_t user_id, appid_t app_id) {
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if (app_id >= AID_APP_START && app_id <= AID_APP_END) {
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return multiuser_get_uid(user_id, (app_id - AID_APP_START) + AID_EXT_CACHE_GID_START);
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} else {
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return -1;
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}
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}
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gid_t multiuser_get_shared_gid(userid_t, appid_t app_id) {
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if (app_id >= AID_APP_START && app_id <= AID_APP_END) {
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return (app_id - AID_APP_START) + AID_SHARED_GID_START;
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} else if (app_id >= AID_ROOT && app_id <= AID_APP_START) {
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return app_id;
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} else {
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return -1;
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}
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}
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gid_t multiuser_get_shared_app_gid(uid_t uid) {
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return multiuser_get_shared_gid(multiuser_get_user_id(uid), multiuser_get_app_id(uid));
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}
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