Adds first cut implementation of a private key store abstraction for openssl

net/socket/ssl_client_socket_openssl.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // OpenSSL binding for SSLClientSocket. The class layout and general principle
 // of operation is derived from SSLClientSocketNSS.
 
 #include "net/socket/ssl_client_socket_openssl.h"
 
 #include <openssl/ssl.h>
 #include <openssl/err.h>
 
 #include "base/lock.h"
 #include "base/metrics/histogram.h"
 #include "base/openssl_util.h"
 #include "base/singleton.h"
 #include "net/base/cert_verifier.h"
 #include "net/base/net_errors.h"
+#include "net/base/openssl_private_key_store.h"
 #include "net/base/ssl_cert_request_info.h"
 #include "net/base/ssl_connection_status_flags.h"
 #include "net/base/ssl_info.h"
 #include "net/socket/ssl_error_params.h"
 
 namespace net {
 
 namespace {
 
 // Enable this to see logging for state machine state transitions.
@@ skipping 476 matching lines @@
   DCHECK(*x509 == NULL);
   DCHECK(*pkey == NULL);
 
   if (!ssl_config_.send_client_cert) {
     client_auth_cert_needed_ = true;
     return -1;  // Suspends handshake.
   }
 
   // Second pass: a client certificate should have been selected.
   if (ssl_config_.client_cert) {
-    // TODO(joth): We need a way to lookup the private key this
-    // certificate. See http://crbug.com/64951 and example code in
-    // http://codereview.chromium.org/5195001/diff/6001/net/socket/ssl_client_socket_openssl.cc
-    NOTIMPLEMENTED();
+    EVP_PKEY* privkey = OpenSSLPrivateKeyStore::GetInstance()->FetchPrivateKey(
+        X509_PUBKEY_get(X509_get_X509_PUBKEY(
+            ssl_config_.client_cert->os_cert_handle())));
+    if (privkey) {
+      // TODO(joth): (copied from NSS) We should wait for server certificate
+      // verification before sending our credentials. See http://crbug.com/13934
+      *x509 = X509Certificate::DupOSCertHandle(
+          ssl_config_.client_cert->os_cert_handle());
+      *pkey = privkey;
+      return 1;
+    }
+    LOG(WARNING) << "Client cert found without private key";
   }
 
   // Send no client certificate.
   return 0;
 }
 
 // SSLClientSocket methods
 
 void SSLClientSocketOpenSSL::GetSSLInfo(SSLInfo* ssl_info) {
   ssl_info->Reset();
@@ skipping 590 matching lines @@
   int rv = SSL_write(ssl_, user_write_buf_->data(), user_write_buf_len_);
 
   if (rv >= 0)
     return rv;
 
   int err = SSL_get_error(ssl_, rv);
   return MapOpenSSLError(err, err_tracer);
 }
 
 } // namespace net