1 /*
2  * Copyright 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 #pragma once
18 
19 #include <sys/types.h>
20 
21 #include <unordered_map>
22 
23 #include <event2/event.h>
24 #include <event2/listener.h>
25 
26 #include <android-base/unique_fd.h>
27 
28 struct InterceptManager;
29 
30 struct Intercept {
~InterceptIntercept31   ~Intercept() {
32     event_free(intercept_event);
33   }
34 
35   InterceptManager* intercept_manager = nullptr;
36   event* intercept_event = nullptr;
37   android::base::unique_fd sockfd;
38 
39   pid_t intercept_pid = -1;
40   android::base::unique_fd output_fd;
41   bool registered = false;
42 };
43 
44 struct InterceptManager {
45   event_base* base;
46   std::unordered_map<pid_t, std::unique_ptr<Intercept>> intercepts;
47   evconnlistener* listener = nullptr;
48 
49   InterceptManager(event_base* _Nonnull base, int intercept_socket);
50   InterceptManager(InterceptManager& copy) = delete;
51   InterceptManager(InterceptManager&& move) = delete;
52 
53   bool GetIntercept(pid_t pid, android::base::unique_fd* out_fd);
54 };
55