Port SSLClientSocket to Linux

net/base/ssl_client_socket_nss.h

+// 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_NSS_H_
+#define NET_BASE_SSL_CLIENT_SOCKET_NSS_H_
+
+#include "build/build_config.h"
+
+#include <prio.h>
+#include "net/base/nss_memio.h"
+
+#include <string>
+
+#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 Mozilla NSS.
+class SSLClientSocketNSS : 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.
+  SSLClientSocketNSS(ClientSocket* transport_socket,
+                     const std::string& hostname,
+                     const SSLConfig& ssl_config);
+  ~SSLClientSocketNSS();
+
+  // 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 DoHandshakeRead();
+  int DoPayloadRead();
+  int DoPayloadWrite();
+  int Init();
+  int BufferSend(void);
+  int BufferRecv(void);
+  void BufferSendComplete(int result);
+  void BufferRecvComplete(int result);
+
+  CompletionCallbackImpl<SSLClientSocketNSS> buffer_send_callback_;
+  CompletionCallbackImpl<SSLClientSocketNSS> buffer_recv_callback_;
+  bool transport_send_busy_;
+  bool transport_recv_busy_;
+
+  CompletionCallbackImpl<SSLClientSocketNSS> io_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_;
+
+  bool completed_handshake_;
+
+  enum State {
+    STATE_NONE,
+    STATE_CONNECT,
+    STATE_CONNECT_COMPLETE,
+    STATE_HANDSHAKE_READ,
+    // No STATE_HANDSHAKE_READ_COMPLETE needed, go to STATE_NONE instead.
+    STATE_PAYLOAD_WRITE,
+    STATE_PAYLOAD_READ,
+  };
+  State next_state_;
+
+  /* The NSS SSL state machine */
+  PRFileDesc* nss_fd_;
+
+  /* Buffers for the network end of the SSL state machine */
+  memio_Private* nss_bufs_;
+
+  static bool nss_options_initialized_;
+};
+
+}  // namespace net
+
+#endif  // NET_BASE_SSL_CLIENT_SOCKET_NSS_H_
+