1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef NET_SOCKET_UNIX_DOMAIN_SERVER_SOCKET_POSIX_H_
6 #define NET_SOCKET_UNIX_DOMAIN_SERVER_SOCKET_POSIX_H_
12 #include "base/basictypes.h"
13 #include "base/callback.h"
14 #include "base/macros.h"
15 #include "base/memory/scoped_ptr.h"
16 #include "net/base/net_export.h"
17 #include "net/socket/server_socket.h"
18 #include "net/socket/socket_descriptor.h"
24 // Unix Domain Server Socket Implementation. Supports abstract namespaces on
26 class NET_EXPORT UnixDomainServerSocket : public ServerSocket {
28 // Credentials of a peer process connected to the socket.
29 struct NET_EXPORT Credentials {
30 #if defined(OS_LINUX) || defined(OS_ANDROID)
31 // Linux/Android API provides more information about the connected peer
32 // than Windows/OS X. It's useful for permission-based authorization on
40 // Callback that returns whether the already connected client, identified by
41 // its credentials, is allowed to keep the connection open. Note that
42 // the socket is closed immediately in case the callback returns false.
43 typedef base::Callback<bool (const Credentials&)> AuthCallback;
45 UnixDomainServerSocket(const AuthCallback& auth_callack,
46 bool use_abstract_namespace);
47 virtual ~UnixDomainServerSocket();
49 // Gets credentials of peer to check permissions.
50 static bool GetPeerCredentials(SocketDescriptor socket_fd,
51 Credentials* credentials);
53 // ServerSocket implementation.
54 virtual int Listen(const IPEndPoint& address, int backlog) OVERRIDE;
55 virtual int ListenWithAddressAndPort(const std::string& unix_domain_path,
57 int backlog) OVERRIDE;
58 virtual int GetLocalAddress(IPEndPoint* address) const OVERRIDE;
59 virtual int Accept(scoped_ptr<StreamSocket>* socket,
60 const CompletionCallback& callback) OVERRIDE;
62 // Accepts an incoming connection on |listen_socket_|, but passes back
63 // a raw SocketDescriptor instead of a StreamSocket.
64 int AcceptSocketDescriptor(SocketDescriptor* socket_descriptor,
65 const CompletionCallback& callback);
68 // A callback to wrap the setting of the out-parameter to Accept().
69 // This allows the internal machinery of that call to be implemented in
70 // a manner that's agnostic to the caller's desired output.
71 typedef base::Callback<void(scoped_ptr<SocketLibevent>)> SetterCallback;
73 int DoAccept(const SetterCallback& setter_callback,
74 const CompletionCallback& callback);
75 void AcceptCompleted(const SetterCallback& setter_callback,
76 const CompletionCallback& callback,
78 bool AuthenticateAndGetStreamSocket(const SetterCallback& setter_callback);
80 scoped_ptr<SocketLibevent> listen_socket_;
81 const AuthCallback auth_callback_;
82 const bool use_abstract_namespace_;
84 scoped_ptr<SocketLibevent> accept_socket_;
86 DISALLOW_COPY_AND_ASSIGN(UnixDomainServerSocket);
91 #endif // NET_SOCKET_UNIX_DOMAIN_SOCKET_POSIX_H_