TetherController.h revision 667c477133318e4779819d34364194c8e5eaf19c 
1/*
2 * Copyright (C) 2008 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#ifndef _TETHER_CONTROLLER_H
18#define _TETHER_CONTROLLER_H
19
20#include <netinet/in.h>
21
22#include "List.h"
23
24typedef android::netd::List<char *> InterfaceCollection;
25typedef android::netd::List<struct in_addr> NetAddressCollection;
26
27class TetherController {
28    InterfaceCollection  *mInterfaces;
29    // NetId to use for forwarded DNS queries. This may not be the default
30    // network, e.g., in the case where we are tethering to a DUN APN.
31    unsigned              mDnsNetId;
32    NetAddressCollection *mDnsForwarders;
33    pid_t                 mDaemonPid;
34    int                   mDaemonFd;
35
36public:
37    TetherController();
38    virtual ~TetherController();
39
40    int setIpFwdEnabled(bool enable);
41    bool getIpFwdEnabled();
42
43    int startTethering(int num_addrs, struct in_addr* addrs);
44
45    int stopTethering();
46    bool isTetheringStarted();
47
48    unsigned getDnsNetId();
49    int setDnsForwarders(unsigned netId, char **servers, int numServers);
50    NetAddressCollection *getDnsForwarders();
51
52    int tetherInterface(const char *interface);
53    int untetherInterface(const char *interface);
54    InterfaceCollection *getTetheredInterfaceList();
55
56private:
57    int applyDnsInterfaces();
58};
59
60#endif
61