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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 #include "talk/base/ssladapter.h"
     33 
     34 #include "talk/base/sslconfig.h"
     35 
     36 #if SSL_USE_SCHANNEL
     37 
     38 #include "schanneladapter.h"
     39 
     40 #elif SSL_USE_OPENSSL  // && !SSL_USE_SCHANNEL
     41 
     42 #include "openssladapter.h"
     43 
     44 #elif SSL_USE_NSS     // && !SSL_USE_CHANNEL && !SSL_USE_OPENSSL
     45 
     46 #include "nssstreamadapter.h"
     47 
     48 #endif  // SSL_USE_OPENSSL && !SSL_USE_SCHANNEL && !SSL_USE_NSS
     49 
     50 ///////////////////////////////////////////////////////////////////////////////
     51 
     52 namespace talk_base {
     53 
     54 SSLAdapter*
     55 SSLAdapter::Create(AsyncSocket* socket) {
     56 #if SSL_USE_SCHANNEL
     57   return new SChannelAdapter(socket);
     58 #elif SSL_USE_OPENSSL  // && !SSL_USE_SCHANNEL
     59   return new OpenSSLAdapter(socket);
     60 #else  // !SSL_USE_OPENSSL && !SSL_USE_SCHANNEL
     61   return NULL;
     62 #endif  // !SSL_USE_OPENSSL && !SSL_USE_SCHANNEL
     63 }
     64 
     65 ///////////////////////////////////////////////////////////////////////////////
     66 
     67 #if SSL_USE_OPENSSL
     68 
     69 bool InitializeSSL(VerificationCallback callback) {
     70   return OpenSSLAdapter::InitializeSSL(callback);
     71 }
     72 
     73 bool InitializeSSLThread() {
     74   return OpenSSLAdapter::InitializeSSLThread();
     75 }
     76 
     77 bool CleanupSSL() {
     78   return OpenSSLAdapter::CleanupSSL();
     79 }
     80 
     81 #elif SSL_USE_NSS  // !SSL_USE_OPENSSL
     82 
     83 bool InitializeSSL(VerificationCallback callback) {
     84   return NSSContext::InitializeSSL(callback);
     85 }
     86 
     87 bool InitializeSSLThread() {
     88   return NSSContext::InitializeSSLThread();
     89 }
     90 
     91 bool CleanupSSL() {
     92   return NSSContext::CleanupSSL();
     93 }
     94 
     95 #else  // !SSL_USE_OPENSSL && !SSL_USE_NSS
     96 
     97 bool InitializeSSL(VerificationCallback callback) {
     98   return true;
     99 }
    100 
    101 bool InitializeSSLThread() {
    102   return true;
    103 }
    104 
    105 bool CleanupSSL() {
    106   return true;
    107 }
    108 
    109 #endif  // !SSL_USE_OPENSSL && !SSL_USE_NSS
    110 
    111 ///////////////////////////////////////////////////////////////////////////////
    112 
    113 }  // namespace talk_base
    114