| /* |
| * Copyright (C) 2020 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. |
| */ |
| |
| #pragma once |
| |
| #include <android/binder_ibinder.h> |
| |
| #if !defined(__ANDROID_APEX__) && !defined(__ANDROID_VNDK__) |
| #include <binder/IBinder.h> |
| #endif |
| |
| __BEGIN_DECLS |
| |
| /** |
| * Makes calls to AIBinder_getCallingSid work if the kernel supports it. This |
| * must be called on a local binder server before it is sent out to any othe |
| * process. If this is a remote binder, it will abort. If the kernel doesn't |
| * support this feature, you'll always get null from AIBinder_getCallingSid. |
| * |
| * \param binder local server binder to request security contexts on |
| */ |
| void AIBinder_setRequestingSid(AIBinder* binder, bool requestingSid) __INTRODUCED_IN(31); |
| |
| /** |
| * Returns the selinux context of the callee. |
| * |
| * In order for this to work, the following conditions must be met: |
| * - The kernel must be new enough to support this feature. |
| * - The server must have called AIBinder_setRequestingSid. |
| * - The callee must be a remote process. |
| * |
| * \return security context or null if unavailable. The lifetime of this context |
| * is the lifetime of the transaction. |
| */ |
| __attribute__((warn_unused_result)) const char* AIBinder_getCallingSid() __INTRODUCED_IN(31); |
| |
| __END_DECLS |
| |
| #if !defined(__ANDROID_APEX__) && !defined(__ANDROID_VNDK__) |
| |
| /** |
| * Get libbinder version of binder from AIBinder. |
| * |
| * WARNING: function calls to a local object on the other side of this function |
| * will parcel. When converting between binders, keep in mind it is not as |
| * efficient as a direct function call. |
| * |
| * \param binder binder with ownership retained by the client |
| * \return platform binder object |
| */ |
| android::sp<android::IBinder> AIBinder_toPlatformBinder(AIBinder* binder); |
| |
| /** |
| * Get libbinder_ndk version of binder from platform binder. |
| * |
| * WARNING: function calls to a local object on the other side of this function |
| * will parcel. When converting between binders, keep in mind it is not as |
| * efficient as a direct function call. |
| * |
| * \param binder platform binder which may be from anywhere (doesn't have to be |
| * created with libbinder_ndK) |
| * \return binder with one reference count of ownership given to the client. See |
| * AIBinder_decStrong |
| */ |
| AIBinder* AIBinder_fromPlatformBinder(const android::sp<android::IBinder>& binder); |
| |
| #endif |