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      1 /*
      2  * libjingle
      3  * Copyright 2011, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef TALK_BASE_PACKETSOCKETFACTORY_H_
     29 #define TALK_BASE_PACKETSOCKETFACTORY_H_
     30 
     31 #include "talk/base/proxyinfo.h"
     32 
     33 namespace talk_base {
     34 
     35 class AsyncPacketSocket;
     36 class AsyncResolverInterface;
     37 
     38 class PacketSocketFactory {
     39  public:
     40   enum Options {
     41     OPT_SSLTCP = 0x01,  // Pseudo-TLS.
     42     OPT_TLS = 0x02,
     43     OPT_STUN = 0x04,
     44   };
     45 
     46   PacketSocketFactory() { }
     47   virtual ~PacketSocketFactory() { }
     48 
     49   virtual AsyncPacketSocket* CreateUdpSocket(
     50       const SocketAddress& address, int min_port, int max_port) = 0;
     51   virtual AsyncPacketSocket* CreateServerTcpSocket(
     52       const SocketAddress& local_address, int min_port, int max_port,
     53       int opts) = 0;
     54 
     55   // TODO: |proxy_info| and |user_agent| should be set
     56   // per-factory and not when socket is created.
     57   virtual AsyncPacketSocket* CreateClientTcpSocket(
     58       const SocketAddress& local_address, const SocketAddress& remote_address,
     59       const ProxyInfo& proxy_info, const std::string& user_agent, int opts) = 0;
     60 
     61   virtual AsyncResolverInterface* CreateAsyncResolver() = 0;
     62 
     63  private:
     64   DISALLOW_EVIL_CONSTRUCTORS(PacketSocketFactory);
     65 };
     66 
     67 }  // namespace talk_base
     68 
     69 #endif  // TALK_BASE_PACKETSOCKETFACTORY_H_
     70