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      1 /*
      2  * libjingle
      3  * Copyright 2004--2005, 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 #if HAVE_CONFIG_H
     29 #include "config.h"
     30 #endif  // HAVE_CONFIG_H
     31 
     32 // Decide which (if any) implementation of SSL we will use.
     33 #if !defined(SSL_USE_SCHANNEL) && !defined(SSL_USE_OPENSSL)
     34 #ifdef WIN32
     35 #define SSL_USE_SCHANNEL 1
     36 #else  // !WIN32
     37 #define SSL_USE_OPENSSL HAVE_OPENSSL_SSL_H
     38 #endif  // !WIN32
     39 #endif
     40 
     41 #include "talk/base/ssladapter.h"
     42 
     43 #if SSL_USE_SCHANNEL
     44 
     45 #include "schanneladapter.h"
     46 
     47 #elif SSL_USE_OPENSSL  // && !SSL_USE_SCHANNEL
     48 
     49 #include "openssladapter.h"
     50 
     51 #endif  // SSL_USE_OPENSSL && !SSL_USE_SCHANNEL
     52 
     53 ///////////////////////////////////////////////////////////////////////////////
     54 
     55 namespace talk_base {
     56 
     57 SSLAdapter*
     58 SSLAdapter::Create(AsyncSocket* socket) {
     59 #if SSL_USE_SCHANNEL
     60   return new SChannelAdapter(socket);
     61 #elif SSL_USE_OPENSSL  // && !SSL_USE_SCHANNEL
     62   return new OpenSSLAdapter(socket);
     63 #else  // !SSL_USE_OPENSSL && !SSL_USE_SCHANNEL
     64   return NULL;
     65 #endif  // !SSL_USE_OPENSSL && !SSL_USE_SCHANNEL
     66 }
     67 
     68 ///////////////////////////////////////////////////////////////////////////////
     69 
     70 #if SSL_USE_OPENSSL
     71 
     72 bool InitializeSSL(VerificationCallback callback) {
     73   return OpenSSLAdapter::InitializeSSL(callback);
     74 }
     75 
     76 bool InitializeSSLThread() {
     77   return OpenSSLAdapter::InitializeSSLThread();
     78 }
     79 
     80 bool CleanupSSL() {
     81   return OpenSSLAdapter::CleanupSSL();
     82 }
     83 
     84 #else  // !SSL_USE_OPENSSL
     85 
     86 bool InitializeSSL(VerificationCallback callback) {
     87   return true;
     88 }
     89 
     90 bool InitializeSSLThread() {
     91   return true;
     92 }
     93 
     94 bool CleanupSSL() {
     95   return true;
     96 }
     97 
     98 #endif  // !SSL_USE_OPENSSL
     99 
    100 ///////////////////////////////////////////////////////////////////////////////
    101 
    102 }  // namespace talk_base
    103