henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #ifndef WEBRTC_BASE_SCHANNELADAPTER_H__ |
| 12 | #define WEBRTC_BASE_SCHANNELADAPTER_H__ |
| 13 | |
| 14 | #include <string> |
| 15 | #include "webrtc/base/ssladapter.h" |
| 16 | #include "webrtc/base/messagequeue.h" |
| 17 | struct _SecBufferDesc; |
| 18 | |
| 19 | namespace rtc { |
| 20 | |
| 21 | /////////////////////////////////////////////////////////////////////////////// |
| 22 | |
| 23 | class SChannelAdapter : public SSLAdapter, public MessageHandler { |
| 24 | public: |
| 25 | SChannelAdapter(AsyncSocket* socket); |
| 26 | virtual ~SChannelAdapter(); |
| 27 | |
| 28 | virtual int StartSSL(const char* hostname, bool restartable); |
| 29 | virtual int Send(const void* pv, size_t cb); |
| 30 | virtual int Recv(void* pv, size_t cb); |
| 31 | virtual int Close(); |
| 32 | |
| 33 | // Note that the socket returns ST_CONNECTING while SSL is being negotiated. |
| 34 | virtual ConnState GetState() const; |
| 35 | |
| 36 | protected: |
| 37 | enum SSLState { |
| 38 | SSL_NONE, SSL_WAIT, SSL_CONNECTING, SSL_CONNECTED, SSL_ERROR |
| 39 | }; |
| 40 | struct SSLImpl; |
| 41 | |
| 42 | virtual void OnConnectEvent(AsyncSocket* socket); |
| 43 | virtual void OnReadEvent(AsyncSocket* socket); |
| 44 | virtual void OnWriteEvent(AsyncSocket* socket); |
| 45 | virtual void OnCloseEvent(AsyncSocket* socket, int err); |
| 46 | virtual void OnMessage(Message* pmsg); |
| 47 | |
| 48 | int BeginSSL(); |
| 49 | int ContinueSSL(); |
| 50 | int ProcessContext(long int status, _SecBufferDesc* sbd_in, |
| 51 | _SecBufferDesc* sbd_out); |
| 52 | int DecryptData(); |
| 53 | |
| 54 | int Read(); |
| 55 | int Flush(); |
| 56 | void Error(const char* context, int err, bool signal = true); |
| 57 | void Cleanup(); |
| 58 | |
| 59 | void PostEvent(); |
| 60 | |
| 61 | private: |
| 62 | SSLState state_; |
| 63 | std::string ssl_host_name_; |
| 64 | // If true, socket will retain SSL configuration after Close. |
| 65 | bool restartable_; |
| 66 | // If true, we are delaying signalling close until all data is read. |
| 67 | bool signal_close_; |
| 68 | // If true, we are waiting to be woken up to signal readability or closure. |
| 69 | bool message_pending_; |
| 70 | SSLImpl* impl_; |
| 71 | }; |
| 72 | |
| 73 | ///////////////////////////////////////////////////////////////////////////// |
| 74 | |
| 75 | } // namespace rtc |
| 76 | |
| 77 | #endif // WEBRTC_BASE_SCHANNELADAPTER_H__ |