Initial Mac implementation of SSL. Requires the full-duplex socket introduced with the Linux/NSS implementation of SSL.

Review URL: http://codereview.chromium.org/7090

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@3525 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 106 insertions, 0 deletions

diff --git a/net/base/ssl_client_socket_mac.h b/net/base/ssl_client_socket_mac.h
new file mode 100644
index 0000000..21eb769
--- /dev/null
+++ b/net/base/ssl_client_socket_mac.h
@@ -0,0 +1,106 @@
+// Copyright (c) 2006-2008 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.
+
+#ifndef NET_BASE_SSL_CLIENT_SOCKET_MAC_H_
+#define NET_BASE_SSL_CLIENT_SOCKET_MAC_H_
+
+#include <Security/Security.h>
+
+#include <string>
+#include <vector>
+
+#include "base/scoped_ptr.h"
+#include "net/base/completion_callback.h"
+#include "net/base/ssl_client_socket.h"
+#include "net/base/ssl_config_service.h"
+
+namespace net {
+
+// An SSL client socket implemented with Secure Transport.
+class SSLClientSocketMac : public SSLClientSocket {
+ public:
+  // Takes ownership of the transport_socket, which may already be connected.
+  // The given hostname will be compared with the name(s) in the server's
+  // certificate during the SSL handshake. ssl_config specifies the SSL
+  // settings.
+  SSLClientSocketMac(ClientSocket* transport_socket,
+                     const std::string& hostname,
+                     const SSLConfig& ssl_config);
+  ~SSLClientSocketMac();
+
+  // SSLClientSocket methods:
+  virtual void GetSSLInfo(SSLInfo* ssl_info);
+  
+  // ClientSocket methods:
+  virtual int Connect(CompletionCallback* callback);
+  virtual int ReconnectIgnoringLastError(CompletionCallback* callback);
+  virtual void Disconnect();
+  virtual bool IsConnected() const;
+
+  // Socket methods:
+  virtual int Read(char* buf, int buf_len, CompletionCallback* callback);
+  virtual int Write(const char* buf, int buf_len, CompletionCallback* callback);
+
+ private:
+  void DoCallback(int result);
+  void OnIOComplete(int result);
+
+  int DoLoop(int last_io_result);
+  int DoConnect();
+  int DoConnectComplete(int result);
+  int DoPayloadRead();
+  int DoPayloadWrite();
+  int DoHandshake();
+  int DoReadComplete(int result);
+  void OnWriteComplete(int result);
+  
+  static OSStatus SSLReadCallback(SSLConnectionRef connection,
+                                  void* data,
+                                  size_t* data_length);
+  static OSStatus SSLWriteCallback(SSLConnectionRef connection, 
+                                   const void* data, 
+                                   size_t* data_length);
+
+  CompletionCallbackImpl<SSLClientSocketMac> io_callback_;
+  CompletionCallbackImpl<SSLClientSocketMac> write_callback_;
+
+  scoped_ptr<ClientSocket> transport_;
+  std::string hostname_;
+  SSLConfig ssl_config_;
+
+  CompletionCallback* user_callback_;
+
+  // Used by both Read and Write functions.
+  char* user_buf_;
+  int user_buf_len_;
+
+  enum State {
+    STATE_NONE,
+    STATE_CONNECT,
+    STATE_CONNECT_COMPLETE,
+    STATE_PAYLOAD_READ,
+    STATE_PAYLOAD_WRITE,
+    STATE_HANDSHAKE,
+    STATE_READ_COMPLETE,
+  };
+  State next_state_;
+  State next_io_state_;
+
+  bool completed_handshake_;
+  SSLContextRef ssl_context_;
+  
+  // These are buffers for holding data during I/O. The "slop" is the amount of
+  // space at the ends of the receive buffer that are allocated for holding data
+  // but don't (yet).
+  std::vector<char> send_buffer_;
+  int pending_send_error_;
+  std::vector<char> recv_buffer_;
+  int recv_buffer_head_slop_;
+  int recv_buffer_tail_slop_;
+};
+
+}  // namespace net
+
+#endif  // NET_BASE_SSL_CLIENT_SOCKET_MAC_H_
+