1 | /* $Id: tcp.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - TCP/IP.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * The contents of this file may alternatively be used under the terms
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26 | * of the Common Development and Distribution License Version 1.0
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27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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28 | * in the VirtualBox distribution, in which case the provisions of the
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29 | * CDDL are applicable instead of those of the GPL.
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30 | *
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31 | * You may elect to license modified versions of this file under the
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32 | * terms and conditions of either the GPL or the CDDL or both.
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33 | *
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34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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35 | */
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36 |
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37 |
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38 | /*********************************************************************************************************************************
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39 | * Header Files *
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40 | *********************************************************************************************************************************/
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41 | #ifdef RT_OS_WINDOWS
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42 | # include <iprt/win/winsock2.h>
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43 | #else
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44 | # include <sys/types.h>
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45 | # include <sys/socket.h>
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46 | # include <errno.h>
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47 | # include <netinet/in.h>
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48 | # include <netinet/tcp.h>
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49 | # include <arpa/inet.h>
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50 | # include <netdb.h>
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51 | # ifdef FIX_FOR_3_2
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52 | # include <fcntl.h>
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53 | # endif
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54 | #endif
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55 | #include <limits.h>
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56 |
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57 | #include "internal/iprt.h"
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58 | #include <iprt/tcp.h>
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59 |
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60 | #include <iprt/asm.h>
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61 | #include <iprt/assert.h>
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62 | #include <iprt/err.h>
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63 | #include <iprt/log.h>
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64 | #include <iprt/mempool.h>
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65 | #include <iprt/mem.h>
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66 | #include <iprt/string.h>
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67 | #include <iprt/socket.h>
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68 | #include <iprt/thread.h>
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69 | #include <iprt/time.h>
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70 |
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71 | #include "internal/magics.h"
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72 | #include "internal/socket.h"
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73 |
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74 |
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75 | /*********************************************************************************************************************************
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76 | * Defined Constants And Macros *
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77 | *********************************************************************************************************************************/
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78 | /* non-standard linux stuff (it seems). */
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79 | #ifndef MSG_NOSIGNAL
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80 | # define MSG_NOSIGNAL 0
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81 | #endif
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82 | #ifndef SHUT_RDWR
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83 | # ifdef SD_BOTH
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84 | # define SHUT_RDWR SD_BOTH
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85 | # else
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86 | # define SHUT_RDWR 2
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87 | # endif
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88 | #endif
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89 | #ifndef SHUT_WR
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90 | # ifdef SD_SEND
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91 | # define SHUT_WR SD_SEND
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92 | # else
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93 | # define SHUT_WR 1
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94 | # endif
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95 | #endif
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96 |
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97 | /* fixup backlevel OSes. */
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98 | #if defined(RT_OS_OS2) || defined(RT_OS_WINDOWS)
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99 | # define socklen_t int
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100 | #endif
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101 |
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102 | /** How many pending connection. */
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103 | #define RTTCP_SERVER_BACKLOG 10
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104 |
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105 |
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106 | /*********************************************************************************************************************************
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107 | * Structures and Typedefs *
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108 | *********************************************************************************************************************************/
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109 | /**
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110 | * TCP Server state.
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111 | */
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112 | typedef enum RTTCPSERVERSTATE
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113 | {
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114 | /** Invalid. */
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115 | RTTCPSERVERSTATE_INVALID = 0,
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116 | /** Created. */
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117 | RTTCPSERVERSTATE_CREATED,
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118 | /** Listener thread is starting up. */
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119 | RTTCPSERVERSTATE_STARTING,
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120 | /** Accepting client connections. */
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121 | RTTCPSERVERSTATE_ACCEPTING,
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122 | /** Serving a client. */
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123 | RTTCPSERVERSTATE_SERVING,
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124 | /** Listener terminating. */
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125 | RTTCPSERVERSTATE_STOPPING,
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126 | /** Listener terminated. */
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127 | RTTCPSERVERSTATE_STOPPED,
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128 | /** Listener cleans up. */
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129 | RTTCPSERVERSTATE_DESTROYING
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130 | } RTTCPSERVERSTATE;
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131 |
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132 | /*
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133 | * Internal representation of the TCP Server handle.
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134 | */
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135 | typedef struct RTTCPSERVER
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136 | {
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137 | /** The magic value (RTTCPSERVER_MAGIC). */
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138 | uint32_t volatile u32Magic;
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139 | /** The server state. */
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140 | RTTCPSERVERSTATE volatile enmState;
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141 | /** The server thread. */
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142 | RTTHREAD Thread;
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143 | /** The server socket. */
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144 | RTSOCKET volatile hServerSocket;
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145 | /** The socket to the client currently being serviced.
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146 | * This is NIL_RTSOCKET when no client is serviced. */
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147 | RTSOCKET volatile hClientSocket;
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148 | /** The connection function. */
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149 | PFNRTTCPSERVE pfnServe;
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150 | /** Argument to pfnServer. */
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151 | void *pvUser;
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152 | } RTTCPSERVER;
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153 |
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154 |
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155 | /*********************************************************************************************************************************
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156 | * Internal Functions *
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157 | *********************************************************************************************************************************/
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158 | static DECLCALLBACK(int) rtTcpServerThread(RTTHREAD ThreadSelf, void *pvServer);
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159 | static int rtTcpServerListen(PRTTCPSERVER pServer);
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160 | static int rtTcpServerListenCleanup(PRTTCPSERVER pServer);
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161 | static int rtTcpClose(RTSOCKET Sock, const char *pszMsg, bool fTryGracefulShutdown);
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162 |
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163 |
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164 | /**
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165 | * Atomicly updates a socket variable.
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166 | * @returns The old handle value.
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167 | * @param phSock The socket handle variable to update.
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168 | * @param hNew The new socket handle value.
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169 | */
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170 | DECLINLINE(RTSOCKET) rtTcpAtomicXchgSock(RTSOCKET volatile *phSock, const RTSOCKET hNew)
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171 | {
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172 | RTSOCKET hRet;
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173 | ASMAtomicXchgHandle(phSock, hNew, &hRet);
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174 | return hRet;
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175 | }
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176 |
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177 |
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178 | /**
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179 | * Tries to change the TCP server state.
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180 | */
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181 | DECLINLINE(bool) rtTcpServerTrySetState(PRTTCPSERVER pServer, RTTCPSERVERSTATE enmStateNew, RTTCPSERVERSTATE enmStateOld)
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182 | {
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183 | bool fRc;
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184 | ASMAtomicCmpXchgSize(&pServer->enmState, enmStateNew, enmStateOld, fRc);
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185 | return fRc;
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186 | }
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187 |
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188 | /**
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189 | * Changes the TCP server state.
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190 | */
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191 | DECLINLINE(void) rtTcpServerSetState(PRTTCPSERVER pServer, RTTCPSERVERSTATE enmStateNew, RTTCPSERVERSTATE enmStateOld)
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192 | {
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193 | bool fRc;
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194 | ASMAtomicCmpXchgSize(&pServer->enmState, enmStateNew, enmStateOld, fRc);
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195 | Assert(fRc); NOREF(fRc);
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196 | }
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197 |
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198 |
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199 | /**
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200 | * Closes the a socket (client or server).
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201 | *
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202 | * @returns IPRT status code.
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203 | */
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204 | static int rtTcpServerDestroySocket(RTSOCKET volatile *pSock, const char *pszMsg, bool fTryGracefulShutdown)
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205 | {
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206 | RTSOCKET hSocket = rtTcpAtomicXchgSock(pSock, NIL_RTSOCKET);
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207 | if (hSocket != NIL_RTSOCKET)
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208 | {
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209 | if (!fTryGracefulShutdown)
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210 | RTSocketShutdown(hSocket, true /*fRead*/, true /*fWrite*/);
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211 | return rtTcpClose(hSocket, pszMsg, fTryGracefulShutdown);
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212 | }
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213 | return VINF_TCP_SERVER_NO_CLIENT;
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214 | }
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215 |
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216 |
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217 | RTR3DECL(int) RTTcpServerCreate(const char *pszAddress, unsigned uPort, RTTHREADTYPE enmType, const char *pszThrdName,
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218 | PFNRTTCPSERVE pfnServe, void *pvUser, PPRTTCPSERVER ppServer)
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219 | {
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220 | /*
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221 | * Validate input.
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222 | */
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223 | AssertReturn(uPort > 0, VERR_INVALID_PARAMETER);
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224 | AssertPtrReturn(pfnServe, VERR_INVALID_POINTER);
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225 | AssertPtrReturn(pszThrdName, VERR_INVALID_POINTER);
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226 | AssertPtrReturn(ppServer, VERR_INVALID_POINTER);
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227 |
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228 | /*
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229 | * Create the server.
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230 | */
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231 | PRTTCPSERVER pServer;
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232 | int rc = RTTcpServerCreateEx(pszAddress, uPort, &pServer);
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233 | if (RT_SUCCESS(rc))
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234 | {
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235 | /*
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236 | * Create the listener thread.
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237 | */
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238 | RTMemPoolRetain(pServer);
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239 | pServer->enmState = RTTCPSERVERSTATE_STARTING;
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240 | pServer->pvUser = pvUser;
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241 | pServer->pfnServe = pfnServe;
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242 | rc = RTThreadCreate(&pServer->Thread, rtTcpServerThread, pServer, 0, enmType, /*RTTHREADFLAGS_WAITABLE*/0, pszThrdName);
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243 | if (RT_SUCCESS(rc))
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244 | {
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245 | /* done */
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246 | if (ppServer)
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247 | *ppServer = pServer;
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248 | else
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249 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
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250 | return rc;
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251 | }
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252 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
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253 |
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254 | /*
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255 | * Destroy the server.
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256 | */
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257 | rtTcpServerSetState(pServer, RTTCPSERVERSTATE_CREATED, RTTCPSERVERSTATE_STARTING);
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258 | RTTcpServerDestroy(pServer);
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259 | }
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260 |
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261 | return rc;
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262 | }
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263 |
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264 |
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265 | /**
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266 | * Server thread, loops accepting connections until it's terminated.
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267 | *
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268 | * @returns iprt status code. (ignored).
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269 | * @param ThreadSelf Thread handle.
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270 | * @param pvServer Server handle.
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271 | */
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272 | static DECLCALLBACK(int) rtTcpServerThread(RTTHREAD ThreadSelf, void *pvServer)
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273 | {
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274 | PRTTCPSERVER pServer = (PRTTCPSERVER)pvServer;
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275 | int rc;
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276 | if (rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_ACCEPTING, RTTCPSERVERSTATE_STARTING))
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277 | rc = rtTcpServerListen(pServer);
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278 | else
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279 | rc = rtTcpServerListenCleanup(pServer);
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280 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
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281 | NOREF(ThreadSelf);
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282 | return VINF_SUCCESS;
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283 | }
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284 |
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285 |
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286 | RTR3DECL(int) RTTcpServerCreateEx(const char *pszAddress, uint32_t uPort, PPRTTCPSERVER ppServer)
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287 | {
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288 | /*
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289 | * Validate input.
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290 | */
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291 | AssertReturn(uPort > 0, VERR_INVALID_PARAMETER);
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292 | AssertPtrReturn(ppServer, VERR_INVALID_PARAMETER);
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293 |
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294 | /*
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295 | * Resolve the address.
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296 | */
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297 | RTNETADDR LocalAddr;
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298 | int rc = RTSocketParseInetAddress(pszAddress, uPort, &LocalAddr);
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299 | if (RT_FAILURE(rc))
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300 | return rc;
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301 |
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302 | /*
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303 | * Setting up socket.
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304 | */
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305 | RTSOCKET WaitSock;
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306 | rc = rtSocketCreate(&WaitSock, AF_INET, SOCK_STREAM, IPPROTO_TCP, false /*fInheritable*/);
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307 | if (RT_SUCCESS(rc))
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308 | {
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309 | /*
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310 | * Set socket options.
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311 | */
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312 | int fFlag = 1;
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313 | if (!rtSocketSetOpt(WaitSock, SOL_SOCKET, SO_REUSEADDR, &fFlag, sizeof(fFlag)))
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314 | {
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315 | /*
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316 | * Bind a name to a socket and set it listening for connections.
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317 | */
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318 | rc = rtSocketBind(WaitSock, &LocalAddr);
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319 | if (RT_SUCCESS(rc))
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320 | rc = rtSocketListen(WaitSock, RTTCP_SERVER_BACKLOG);
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321 | if (RT_SUCCESS(rc))
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322 | {
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323 | /*
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324 | * Create the server handle.
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325 | */
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326 | PRTTCPSERVER pServer = (PRTTCPSERVER)RTMemPoolAlloc(RTMEMPOOL_DEFAULT, sizeof(*pServer));
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327 | if (pServer)
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328 | {
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329 | pServer->u32Magic = RTTCPSERVER_MAGIC;
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330 | pServer->enmState = RTTCPSERVERSTATE_CREATED;
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331 | pServer->Thread = NIL_RTTHREAD;
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332 | pServer->hServerSocket = WaitSock;
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333 | pServer->hClientSocket = NIL_RTSOCKET;
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334 | pServer->pfnServe = NULL;
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335 | pServer->pvUser = NULL;
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336 | *ppServer = pServer;
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337 | return VINF_SUCCESS;
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338 | }
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339 |
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340 | /* bail out */
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341 | rc = VERR_NO_MEMORY;
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342 | }
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343 | }
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344 | else
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345 | AssertMsgFailed(("rtSocketSetOpt: %Rrc\n", rc));
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346 | rtTcpClose(WaitSock, "RTServerCreateEx", false /*fTryGracefulShutdown*/);
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347 | }
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348 |
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349 | return rc;
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350 | }
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351 |
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352 |
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353 | RTR3DECL(int) RTTcpServerListen(PRTTCPSERVER pServer, PFNRTTCPSERVE pfnServe, void *pvUser)
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354 | {
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355 | /*
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356 | * Validate input and retain the instance.
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357 | */
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358 | AssertPtrReturn(pfnServe, VERR_INVALID_POINTER);
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359 | AssertPtrReturn(pServer, VERR_INVALID_HANDLE);
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360 | AssertReturn(pServer->u32Magic == RTTCPSERVER_MAGIC, VERR_INVALID_HANDLE);
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361 | AssertReturn(RTMemPoolRetain(pServer) != UINT32_MAX, VERR_INVALID_HANDLE);
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362 |
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363 | int rc = VERR_INVALID_STATE;
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364 | if (rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_ACCEPTING, RTTCPSERVERSTATE_CREATED))
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365 | {
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366 | Assert(!pServer->pfnServe);
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367 | Assert(!pServer->pvUser);
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368 | Assert(pServer->Thread == NIL_RTTHREAD);
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369 | Assert(pServer->hClientSocket == NIL_RTSOCKET);
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370 |
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371 | pServer->pfnServe = pfnServe;
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372 | pServer->pvUser = pvUser;
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373 | pServer->Thread = RTThreadSelf();
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374 | Assert(pServer->Thread != NIL_RTTHREAD);
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375 | rc = rtTcpServerListen(pServer);
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376 | }
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377 | else
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378 | {
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379 | AssertMsgFailed(("enmState=%d\n", pServer->enmState));
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380 | rc = VERR_INVALID_STATE;
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381 | }
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382 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
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383 | return rc;
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384 | }
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385 |
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386 |
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387 | /**
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388 | * Internal worker common for RTTcpServerListen and the thread created by
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389 | * RTTcpServerCreate().
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390 | *
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391 | * The caller makes sure it has its own memory reference and releases it upon
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392 | * return.
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393 | */
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394 | static int rtTcpServerListen(PRTTCPSERVER pServer)
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395 | {
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396 | /*
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397 | * Accept connection loop.
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398 | */
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399 | for (;;)
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400 | {
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401 | /*
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402 | * Change state, getting an extra reference to the socket so we can
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403 | * allow others to close it while we're stuck in rtSocketAccept.
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404 | */
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405 | RTTCPSERVERSTATE enmState = pServer->enmState;
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406 | RTSOCKET hServerSocket;
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407 | ASMAtomicXchgHandle(&pServer->hServerSocket, NIL_RTSOCKET, &hServerSocket);
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408 | if (hServerSocket != NIL_RTSOCKET)
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409 | {
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410 | RTSocketRetain(hServerSocket);
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411 | ASMAtomicWriteHandle(&pServer->hServerSocket, hServerSocket);
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412 | }
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413 | if ( enmState != RTTCPSERVERSTATE_ACCEPTING
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414 | && enmState != RTTCPSERVERSTATE_SERVING)
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415 | {
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416 | RTSocketRelease(hServerSocket);
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417 | return rtTcpServerListenCleanup(pServer);
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418 | }
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419 | if (!rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_ACCEPTING, enmState))
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420 | {
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421 | RTSocketRelease(hServerSocket);
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422 | continue;
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423 | }
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424 |
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425 | /*
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426 | * Accept connection.
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427 | */
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428 | struct sockaddr_in RemoteAddr;
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429 | size_t cbRemoteAddr = sizeof(RemoteAddr);
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430 | RTSOCKET hClientSocket;
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431 | RT_ZERO(RemoteAddr);
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432 | int rc = rtSocketAccept(hServerSocket, &hClientSocket, (struct sockaddr *)&RemoteAddr, &cbRemoteAddr);
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433 | RTSocketRelease(hServerSocket);
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434 | if (RT_FAILURE(rc))
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435 | {
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436 | /* These are typical for what can happen during destruction. */
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437 | if ( rc == VERR_INVALID_HANDLE
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438 | || rc == VERR_INVALID_PARAMETER
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439 | || rc == VERR_NET_NOT_SOCKET)
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440 | return rtTcpServerListenCleanup(pServer);
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441 | continue;
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442 | }
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443 | RTSocketSetInheritance(hClientSocket, false /*fInheritable*/);
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444 |
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445 | /*
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446 | * Run a pfnServe callback.
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447 | */
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448 | if (!rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_SERVING, RTTCPSERVERSTATE_ACCEPTING))
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449 | {
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450 | rtTcpClose(hClientSocket, "rtTcpServerListen", true /*fTryGracefulShutdown*/);
|
---|
451 | return rtTcpServerListenCleanup(pServer);
|
---|
452 | }
|
---|
453 | RTSocketRetain(hClientSocket);
|
---|
454 | rtTcpAtomicXchgSock(&pServer->hClientSocket, hClientSocket);
|
---|
455 | rc = pServer->pfnServe(hClientSocket, pServer->pvUser);
|
---|
456 | rtTcpServerDestroySocket(&pServer->hClientSocket, "Listener: client (secondary)", true /*fTryGracefulShutdown*/);
|
---|
457 | RTSocketRelease(hClientSocket);
|
---|
458 |
|
---|
459 | /*
|
---|
460 | * Stop the server?
|
---|
461 | */
|
---|
462 | if (rc == VERR_TCP_SERVER_STOP)
|
---|
463 | {
|
---|
464 | if (rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_STOPPING, RTTCPSERVERSTATE_SERVING))
|
---|
465 | {
|
---|
466 | /*
|
---|
467 | * Reset the server socket and change the state to stopped. After that state change
|
---|
468 | * we cannot safely access the handle so we'll have to return here.
|
---|
469 | */
|
---|
470 | hServerSocket = rtTcpAtomicXchgSock(&pServer->hServerSocket, NIL_RTSOCKET);
|
---|
471 | rtTcpServerSetState(pServer, RTTCPSERVERSTATE_STOPPED, RTTCPSERVERSTATE_STOPPING);
|
---|
472 | rtTcpClose(hServerSocket, "Listener: server stopped", false /*fTryGracefulShutdown*/);
|
---|
473 | }
|
---|
474 | else
|
---|
475 | rtTcpServerListenCleanup(pServer); /* ignore rc */
|
---|
476 | return rc;
|
---|
477 | }
|
---|
478 | }
|
---|
479 | }
|
---|
480 |
|
---|
481 |
|
---|
482 | /**
|
---|
483 | * Clean up after listener.
|
---|
484 | */
|
---|
485 | static int rtTcpServerListenCleanup(PRTTCPSERVER pServer)
|
---|
486 | {
|
---|
487 | /*
|
---|
488 | * Close the server socket, the client one shouldn't be set.
|
---|
489 | */
|
---|
490 | rtTcpServerDestroySocket(&pServer->hServerSocket, "ListenCleanup", false /*fTryGracefulShutdown*/);
|
---|
491 | Assert(pServer->hClientSocket == NIL_RTSOCKET);
|
---|
492 |
|
---|
493 | /*
|
---|
494 | * Figure the return code and make sure the state is OK.
|
---|
495 | */
|
---|
496 | RTTCPSERVERSTATE enmState = pServer->enmState;
|
---|
497 | switch (enmState)
|
---|
498 | {
|
---|
499 | case RTTCPSERVERSTATE_STOPPING:
|
---|
500 | case RTTCPSERVERSTATE_STOPPED:
|
---|
501 | return VERR_TCP_SERVER_SHUTDOWN;
|
---|
502 |
|
---|
503 | case RTTCPSERVERSTATE_ACCEPTING:
|
---|
504 | rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_STOPPED, enmState);
|
---|
505 | return VERR_TCP_SERVER_DESTROYED;
|
---|
506 |
|
---|
507 | case RTTCPSERVERSTATE_DESTROYING:
|
---|
508 | return VERR_TCP_SERVER_DESTROYED;
|
---|
509 |
|
---|
510 | case RTTCPSERVERSTATE_STARTING:
|
---|
511 | case RTTCPSERVERSTATE_SERVING:
|
---|
512 | default:
|
---|
513 | AssertMsgFailedReturn(("pServer=%p enmState=%d\n", pServer, enmState), VERR_INTERNAL_ERROR_4);
|
---|
514 | }
|
---|
515 | }
|
---|
516 |
|
---|
517 |
|
---|
518 | RTR3DECL(int) RTTcpServerListen2(PRTTCPSERVER pServer, PRTSOCKET phClientSocket)
|
---|
519 | {
|
---|
520 | /*
|
---|
521 | * Validate input and retain the instance.
|
---|
522 | */
|
---|
523 | AssertPtrReturn(phClientSocket, VERR_INVALID_HANDLE);
|
---|
524 | *phClientSocket = NIL_RTSOCKET;
|
---|
525 | AssertReturn(pServer->u32Magic == RTTCPSERVER_MAGIC, VERR_INVALID_HANDLE);
|
---|
526 | AssertReturn(RTMemPoolRetain(pServer) != UINT32_MAX, VERR_INVALID_HANDLE);
|
---|
527 |
|
---|
528 | int rc = VERR_INVALID_STATE;
|
---|
529 | for (;;)
|
---|
530 | {
|
---|
531 | /*
|
---|
532 | * Change state, getting an extra reference to the socket so we can
|
---|
533 | * allow others to close it while we're stuck in rtSocketAccept.
|
---|
534 | */
|
---|
535 | RTTCPSERVERSTATE enmState = pServer->enmState;
|
---|
536 | RTSOCKET hServerSocket;
|
---|
537 | ASMAtomicXchgHandle(&pServer->hServerSocket, NIL_RTSOCKET, &hServerSocket);
|
---|
538 | if (hServerSocket != NIL_RTSOCKET)
|
---|
539 | {
|
---|
540 | RTSocketRetain(hServerSocket);
|
---|
541 | ASMAtomicWriteHandle(&pServer->hServerSocket, hServerSocket);
|
---|
542 | }
|
---|
543 | if ( enmState != RTTCPSERVERSTATE_SERVING
|
---|
544 | && enmState != RTTCPSERVERSTATE_CREATED)
|
---|
545 | {
|
---|
546 | RTSocketRelease(hServerSocket);
|
---|
547 | return rtTcpServerListenCleanup(pServer);
|
---|
548 | }
|
---|
549 | if (!rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_ACCEPTING, enmState))
|
---|
550 | {
|
---|
551 | RTSocketRelease(hServerSocket);
|
---|
552 | continue;
|
---|
553 | }
|
---|
554 | Assert(!pServer->pfnServe);
|
---|
555 | Assert(!pServer->pvUser);
|
---|
556 | Assert(pServer->Thread == NIL_RTTHREAD);
|
---|
557 | Assert(pServer->hClientSocket == NIL_RTSOCKET);
|
---|
558 |
|
---|
559 | /*
|
---|
560 | * Accept connection.
|
---|
561 | */
|
---|
562 | struct sockaddr_in RemoteAddr;
|
---|
563 | size_t cbRemoteAddr = sizeof(RemoteAddr);
|
---|
564 | RTSOCKET hClientSocket;
|
---|
565 | RT_ZERO(RemoteAddr);
|
---|
566 | rc = rtSocketAccept(hServerSocket, &hClientSocket, (struct sockaddr *)&RemoteAddr, &cbRemoteAddr);
|
---|
567 | RTSocketRelease(hServerSocket);
|
---|
568 | if (RT_FAILURE(rc))
|
---|
569 | {
|
---|
570 | if (!rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_CREATED, RTTCPSERVERSTATE_ACCEPTING))
|
---|
571 | rc = rtTcpServerListenCleanup(pServer);
|
---|
572 | if (RT_FAILURE(rc))
|
---|
573 | break;
|
---|
574 | continue;
|
---|
575 | }
|
---|
576 | RTSocketSetInheritance(hClientSocket, false /*fInheritable*/);
|
---|
577 |
|
---|
578 | /*
|
---|
579 | * Chance to the 'serving' state and return the socket.
|
---|
580 | */
|
---|
581 | if (rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_SERVING, RTTCPSERVERSTATE_ACCEPTING))
|
---|
582 | {
|
---|
583 | *phClientSocket = hClientSocket;
|
---|
584 | rc = VINF_SUCCESS;
|
---|
585 | }
|
---|
586 | else
|
---|
587 | {
|
---|
588 | rtTcpClose(hClientSocket, "RTTcpServerListen2", true /*fTryGracefulShutdown*/);
|
---|
589 | rc = rtTcpServerListenCleanup(pServer);
|
---|
590 | }
|
---|
591 | break;
|
---|
592 | }
|
---|
593 |
|
---|
594 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
|
---|
595 | return rc;
|
---|
596 | }
|
---|
597 |
|
---|
598 |
|
---|
599 | RTR3DECL(int) RTTcpServerDisconnectClient(PRTTCPSERVER pServer)
|
---|
600 | {
|
---|
601 | /*
|
---|
602 | * Validate input and retain the instance.
|
---|
603 | */
|
---|
604 | AssertPtrReturn(pServer, VERR_INVALID_HANDLE);
|
---|
605 | AssertReturn(pServer->u32Magic == RTTCPSERVER_MAGIC, VERR_INVALID_HANDLE);
|
---|
606 | AssertReturn(RTMemPoolRetain(pServer) != UINT32_MAX, VERR_INVALID_HANDLE);
|
---|
607 |
|
---|
608 | int rc = rtTcpServerDestroySocket(&pServer->hClientSocket, "DisconnectClient: client", true /*fTryGracefulShutdown*/);
|
---|
609 |
|
---|
610 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
|
---|
611 | return rc;
|
---|
612 | }
|
---|
613 |
|
---|
614 |
|
---|
615 | RTR3DECL(int) RTTcpServerDisconnectClient2(RTSOCKET hClientSocket)
|
---|
616 | {
|
---|
617 | return rtTcpClose(hClientSocket, "RTTcpServerDisconnectClient2", true /*fTryGracefulShutdown*/);
|
---|
618 | }
|
---|
619 |
|
---|
620 |
|
---|
621 | RTR3DECL(int) RTTcpServerShutdown(PRTTCPSERVER pServer)
|
---|
622 | {
|
---|
623 | /*
|
---|
624 | * Validate input and retain the instance.
|
---|
625 | */
|
---|
626 | AssertPtrReturn(pServer, VERR_INVALID_HANDLE);
|
---|
627 | AssertReturn(pServer->u32Magic == RTTCPSERVER_MAGIC, VERR_INVALID_HANDLE);
|
---|
628 | AssertReturn(RTMemPoolRetain(pServer) != UINT32_MAX, VERR_INVALID_HANDLE);
|
---|
629 |
|
---|
630 | /*
|
---|
631 | * Try change the state to stopping, then replace and destroy the server socket.
|
---|
632 | */
|
---|
633 | for (;;)
|
---|
634 | {
|
---|
635 | RTTCPSERVERSTATE enmState = pServer->enmState;
|
---|
636 | if ( enmState != RTTCPSERVERSTATE_ACCEPTING
|
---|
637 | && enmState != RTTCPSERVERSTATE_SERVING)
|
---|
638 | {
|
---|
639 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
|
---|
640 | switch (enmState)
|
---|
641 | {
|
---|
642 | case RTTCPSERVERSTATE_CREATED:
|
---|
643 | case RTTCPSERVERSTATE_STARTING:
|
---|
644 | default:
|
---|
645 | AssertMsgFailed(("%d\n", enmState));
|
---|
646 | return VERR_INVALID_STATE;
|
---|
647 |
|
---|
648 | case RTTCPSERVERSTATE_STOPPING:
|
---|
649 | case RTTCPSERVERSTATE_STOPPED:
|
---|
650 | return VINF_SUCCESS;
|
---|
651 |
|
---|
652 | case RTTCPSERVERSTATE_DESTROYING:
|
---|
653 | return VERR_TCP_SERVER_DESTROYED;
|
---|
654 | }
|
---|
655 | }
|
---|
656 | if (rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_STOPPING, enmState))
|
---|
657 | {
|
---|
658 | rtTcpServerDestroySocket(&pServer->hServerSocket, "RTTcpServerShutdown", false /*fTryGracefulShutdown*/);
|
---|
659 | rtTcpServerSetState(pServer, RTTCPSERVERSTATE_STOPPED, RTTCPSERVERSTATE_STOPPING);
|
---|
660 |
|
---|
661 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
|
---|
662 | return VINF_SUCCESS;
|
---|
663 | }
|
---|
664 | }
|
---|
665 | }
|
---|
666 |
|
---|
667 |
|
---|
668 | RTR3DECL(int) RTTcpServerDestroy(PRTTCPSERVER pServer)
|
---|
669 | {
|
---|
670 | /*
|
---|
671 | * Validate input and retain the instance.
|
---|
672 | */
|
---|
673 | AssertPtrReturn(pServer, VERR_INVALID_HANDLE);
|
---|
674 | AssertReturn(pServer->u32Magic == RTTCPSERVER_MAGIC, VERR_INVALID_HANDLE);
|
---|
675 | AssertReturn(RTMemPoolRetain(pServer) != UINT32_MAX, VERR_INVALID_HANDLE); /* paranoia */
|
---|
676 |
|
---|
677 | /*
|
---|
678 | * Move the state along so the listener can figure out what's going on.
|
---|
679 | */
|
---|
680 | for (;;)
|
---|
681 | {
|
---|
682 | bool fDestroyable;
|
---|
683 | RTTCPSERVERSTATE enmState = pServer->enmState;
|
---|
684 | switch (enmState)
|
---|
685 | {
|
---|
686 | case RTTCPSERVERSTATE_STARTING:
|
---|
687 | case RTTCPSERVERSTATE_ACCEPTING:
|
---|
688 | case RTTCPSERVERSTATE_SERVING:
|
---|
689 | case RTTCPSERVERSTATE_CREATED:
|
---|
690 | case RTTCPSERVERSTATE_STOPPED:
|
---|
691 | fDestroyable = rtTcpServerTrySetState(pServer, RTTCPSERVERSTATE_DESTROYING, enmState);
|
---|
692 | break;
|
---|
693 |
|
---|
694 | /* destroyable states */
|
---|
695 | case RTTCPSERVERSTATE_STOPPING:
|
---|
696 | fDestroyable = true;
|
---|
697 | break;
|
---|
698 |
|
---|
699 | /*
|
---|
700 | * Everything else means user or internal misbehavior.
|
---|
701 | */
|
---|
702 | default:
|
---|
703 | AssertMsgFailed(("pServer=%p enmState=%d\n", pServer, enmState));
|
---|
704 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
|
---|
705 | return VERR_INTERNAL_ERROR;
|
---|
706 | }
|
---|
707 | if (fDestroyable)
|
---|
708 | break;
|
---|
709 | }
|
---|
710 |
|
---|
711 | /*
|
---|
712 | * Destroy it.
|
---|
713 | */
|
---|
714 | ASMAtomicWriteU32(&pServer->u32Magic, ~RTTCPSERVER_MAGIC);
|
---|
715 | rtTcpServerDestroySocket(&pServer->hServerSocket, "Destroyer: server", false /*fTryGracefulShutdown*/);
|
---|
716 | rtTcpServerDestroySocket(&pServer->hClientSocket, "Destroyer: client", true /*fTryGracefulShutdown*/);
|
---|
717 |
|
---|
718 | /*
|
---|
719 | * Release it.
|
---|
720 | */
|
---|
721 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
|
---|
722 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pServer);
|
---|
723 | return VINF_SUCCESS;
|
---|
724 | }
|
---|
725 |
|
---|
726 |
|
---|
727 | RTR3DECL(int) RTTcpClientConnect(const char *pszAddress, uint32_t uPort, PRTSOCKET pSock)
|
---|
728 | {
|
---|
729 | return RTTcpClientConnectEx(pszAddress, uPort, pSock, RT_SOCKETCONNECT_DEFAULT_WAIT, NULL);
|
---|
730 | }
|
---|
731 |
|
---|
732 |
|
---|
733 | RTR3DECL(int) RTTcpClientConnectEx(const char *pszAddress, uint32_t uPort, PRTSOCKET pSock,
|
---|
734 | RTMSINTERVAL cMillies, PRTTCPCLIENTCONNECTCANCEL volatile *ppCancelCookie)
|
---|
735 | {
|
---|
736 | /*
|
---|
737 | * Validate input.
|
---|
738 | */
|
---|
739 | AssertReturn(uPort > 0, VERR_INVALID_PARAMETER);
|
---|
740 | AssertPtrReturn(pszAddress, VERR_INVALID_POINTER);
|
---|
741 | AssertPtrNullReturn(ppCancelCookie, VERR_INVALID_POINTER);
|
---|
742 |
|
---|
743 | /*
|
---|
744 | * Resolve the address.
|
---|
745 | */
|
---|
746 | RTNETADDR Addr;
|
---|
747 | int rc = RTSocketParseInetAddress(pszAddress, uPort, &Addr);
|
---|
748 | if (RT_FAILURE(rc))
|
---|
749 | return rc;
|
---|
750 |
|
---|
751 | /*
|
---|
752 | * Create the socket and connect.
|
---|
753 | */
|
---|
754 | RTSOCKET Sock;
|
---|
755 | rc = rtSocketCreate(&Sock, PF_INET, SOCK_STREAM, 0, false /*fInheritable*/);
|
---|
756 | if (RT_SUCCESS(rc))
|
---|
757 | {
|
---|
758 | if (!ppCancelCookie)
|
---|
759 | rc = rtSocketConnect(Sock, &Addr, cMillies);
|
---|
760 | else
|
---|
761 | {
|
---|
762 | RTSocketRetain(Sock);
|
---|
763 | if (ASMAtomicCmpXchgPtr(ppCancelCookie, (PRTTCPCLIENTCONNECTCANCEL)Sock, NULL))
|
---|
764 | {
|
---|
765 | rc = rtSocketConnect(Sock, &Addr, cMillies);
|
---|
766 | if (ASMAtomicCmpXchgPtr(ppCancelCookie, NULL, (PRTTCPCLIENTCONNECTCANCEL)Sock))
|
---|
767 | RTSocketRelease(Sock);
|
---|
768 | else
|
---|
769 | rc = VERR_CANCELLED;
|
---|
770 | }
|
---|
771 | else
|
---|
772 | {
|
---|
773 | RTSocketRelease(Sock);
|
---|
774 | rc = VERR_CANCELLED;
|
---|
775 | }
|
---|
776 | }
|
---|
777 | if (RT_SUCCESS(rc))
|
---|
778 | {
|
---|
779 | *pSock = Sock;
|
---|
780 | return VINF_SUCCESS;
|
---|
781 | }
|
---|
782 |
|
---|
783 | rtTcpClose(Sock, "RTTcpClientConnect", false /*fTryGracefulShutdown*/);
|
---|
784 | }
|
---|
785 | if (ppCancelCookie)
|
---|
786 | *ppCancelCookie = NULL;
|
---|
787 | return rc;
|
---|
788 | }
|
---|
789 |
|
---|
790 |
|
---|
791 | RTR3DECL(int) RTTcpClientCancelConnect(PRTTCPCLIENTCONNECTCANCEL volatile *ppCancelCookie)
|
---|
792 | {
|
---|
793 | AssertPtrReturn(ppCancelCookie, VERR_INVALID_POINTER);
|
---|
794 |
|
---|
795 | RTSOCKET const hSockCancelled = (RTSOCKET)(uintptr_t)0xdead9999;
|
---|
796 |
|
---|
797 | AssertCompile(NIL_RTSOCKET == NULL);
|
---|
798 | RTSOCKET hSock = (RTSOCKET)ASMAtomicXchgPtr((void * volatile *)ppCancelCookie, hSockCancelled);
|
---|
799 | if (hSock != NIL_RTSOCKET && hSock != hSockCancelled)
|
---|
800 | {
|
---|
801 | int rc = rtTcpClose(hSock, "RTTcpClientCancelConnect", false /*fTryGracefulShutdown*/);
|
---|
802 | AssertRCReturn(rc, rc);
|
---|
803 | }
|
---|
804 |
|
---|
805 | return VINF_SUCCESS;
|
---|
806 | }
|
---|
807 |
|
---|
808 |
|
---|
809 | RTR3DECL(int) RTTcpClientClose(RTSOCKET Sock)
|
---|
810 | {
|
---|
811 | return rtTcpClose(Sock, "RTTcpClientClose", true /*fTryGracefulShutdown*/);
|
---|
812 | }
|
---|
813 |
|
---|
814 |
|
---|
815 | RTR3DECL(int) RTTcpClientCloseEx(RTSOCKET Sock, bool fGracefulShutdown)
|
---|
816 | {
|
---|
817 | return rtTcpClose(Sock, "RTTcpClientCloseEx", fGracefulShutdown);
|
---|
818 | }
|
---|
819 |
|
---|
820 |
|
---|
821 | #ifdef FIX_FOR_3_2
|
---|
822 | /**
|
---|
823 | * Changes the blocking mode of the socket.
|
---|
824 | *
|
---|
825 | * @returns 0 on success, -1 on failure.
|
---|
826 | * @param hSocket The socket to work on.
|
---|
827 | * @param fBlocking The desired mode of operation.
|
---|
828 | */
|
---|
829 | static int rtTcpSetBlockingMode(RTHCUINTPTR hSocket, bool fBlocking)
|
---|
830 | {
|
---|
831 | int rc = VINF_SUCCESS;
|
---|
832 | #ifdef RT_OS_WINDOWS
|
---|
833 | u_long uBlocking = fBlocking ? 0 : 1;
|
---|
834 | if (ioctlsocket(hSocket, FIONBIO, &uBlocking))
|
---|
835 | return -1;
|
---|
836 |
|
---|
837 | #else
|
---|
838 | int fFlags = fcntl(hSocket, F_GETFL, 0);
|
---|
839 | if (fFlags == -1)
|
---|
840 | return -1;
|
---|
841 |
|
---|
842 | if (fBlocking)
|
---|
843 | fFlags &= ~O_NONBLOCK;
|
---|
844 | else
|
---|
845 | fFlags |= O_NONBLOCK;
|
---|
846 | if (fcntl(hSocket, F_SETFL, fFlags) == -1)
|
---|
847 | return -1;
|
---|
848 | #endif
|
---|
849 |
|
---|
850 | return 0;
|
---|
851 | }
|
---|
852 | #endif
|
---|
853 |
|
---|
854 |
|
---|
855 | /**
|
---|
856 | * Internal close function which does all the proper bitching.
|
---|
857 | */
|
---|
858 | static int rtTcpClose(RTSOCKET Sock, const char *pszMsg, bool fTryGracefulShutdown)
|
---|
859 | {
|
---|
860 | NOREF(pszMsg); /** @todo drop this parameter? */
|
---|
861 |
|
---|
862 | /* ignore nil handles. */
|
---|
863 | if (Sock == NIL_RTSOCKET)
|
---|
864 | return VINF_SUCCESS;
|
---|
865 |
|
---|
866 | /*
|
---|
867 | * Try to gracefully shut it down.
|
---|
868 | */
|
---|
869 | int rc;
|
---|
870 | if (fTryGracefulShutdown)
|
---|
871 | {
|
---|
872 | rc = RTSocketShutdown(Sock, false /*fRead*/, true /*fWrite*/);
|
---|
873 | #ifdef FIX_FOR_3_2
|
---|
874 | RTHCUINTPTR hNative = RTSocketToNative(Sock);
|
---|
875 | if (RT_SUCCESS(rc) && rtTcpSetBlockingMode(hNative, false /*fBlocking*/) == 0)
|
---|
876 | #else
|
---|
877 | if (RT_SUCCESS(rc))
|
---|
878 | #endif
|
---|
879 | {
|
---|
880 |
|
---|
881 | size_t cbReceived = 0;
|
---|
882 | uint64_t u64Start = RTTimeMilliTS();
|
---|
883 | while ( cbReceived < _1G
|
---|
884 | && RTTimeMilliTS() - u64Start < 30000)
|
---|
885 | {
|
---|
886 | #ifdef FIX_FOR_3_2
|
---|
887 | fd_set FdSetR;
|
---|
888 | FD_ZERO(&FdSetR);
|
---|
889 | FD_SET(hNative, &FdSetR);
|
---|
890 |
|
---|
891 | fd_set FdSetE;
|
---|
892 | FD_ZERO(&FdSetE);
|
---|
893 | FD_SET(hNative, &FdSetE);
|
---|
894 |
|
---|
895 | struct timeval TvTimeout;
|
---|
896 | TvTimeout.tv_sec = 1;
|
---|
897 | TvTimeout.tv_usec = 0;
|
---|
898 | rc = select(hNative + 1, &FdSetR, NULL, &FdSetE, &TvTimeout);
|
---|
899 | if (rc == 0)
|
---|
900 | continue;
|
---|
901 | if (rc < 0)
|
---|
902 | break;
|
---|
903 | if (FD_ISSET(hNative, &FdSetE))
|
---|
904 | break;
|
---|
905 | #else
|
---|
906 | uint32_t fEvents;
|
---|
907 | rc = RTSocketSelectOneEx(Sock, RTSOCKET_EVT_READ | RTSOCKET_EVT_ERROR, &fEvents, 1000);
|
---|
908 | if (rc == VERR_TIMEOUT)
|
---|
909 | continue;
|
---|
910 | if (RT_FAILURE(rc))
|
---|
911 | break;
|
---|
912 | if (fEvents & RTSOCKET_EVT_ERROR)
|
---|
913 | break;
|
---|
914 | #endif
|
---|
915 |
|
---|
916 | char abBitBucket[16*_1K];
|
---|
917 | #ifdef FIX_FOR_3_2
|
---|
918 | ssize_t cbRead = recv(hNative, &abBitBucket[0], sizeof(abBitBucket), MSG_NOSIGNAL);
|
---|
919 | if (cbRead == 0)
|
---|
920 | break; /* orderly shutdown in progress */
|
---|
921 | if (cbRead < 0 && errno != EAGAIN)
|
---|
922 | break; /* some kind of error, never mind which... */
|
---|
923 | #else
|
---|
924 | size_t cbRead;
|
---|
925 | rc = RTSocketReadNB(Sock, &abBitBucket[0], sizeof(abBitBucket), &cbRead);
|
---|
926 | if (RT_FAILURE(rc))
|
---|
927 | break; /* some kind of error, never mind which... */
|
---|
928 | if (rc != VINF_TRY_AGAIN && !cbRead)
|
---|
929 | break; /* orderly shutdown in progress */
|
---|
930 | #endif
|
---|
931 |
|
---|
932 | cbReceived += cbRead;
|
---|
933 | }
|
---|
934 | }
|
---|
935 | }
|
---|
936 |
|
---|
937 | /*
|
---|
938 | * Close the socket handle (drops our reference to it).
|
---|
939 | */
|
---|
940 | return RTSocketClose(Sock);
|
---|
941 | }
|
---|
942 |
|
---|
943 |
|
---|
944 | RTR3DECL(int) RTTcpCreatePair(PRTSOCKET phServer, PRTSOCKET phClient, uint32_t fFlags)
|
---|
945 | {
|
---|
946 | /*
|
---|
947 | * Validate input.
|
---|
948 | */
|
---|
949 | AssertPtrReturn(phServer, VERR_INVALID_PARAMETER);
|
---|
950 | AssertPtrReturn(phClient, VERR_INVALID_PARAMETER);
|
---|
951 | AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
|
---|
952 |
|
---|
953 | /*
|
---|
954 | * Do the job.
|
---|
955 | */
|
---|
956 | return rtSocketCreateTcpPair(phServer, phClient);
|
---|
957 | }
|
---|
958 |
|
---|
959 |
|
---|
960 | RTR3DECL(int) RTTcpRead(RTSOCKET Sock, void *pvBuffer, size_t cbBuffer, size_t *pcbRead)
|
---|
961 | {
|
---|
962 | return RTSocketRead(Sock, pvBuffer, cbBuffer, pcbRead);
|
---|
963 | }
|
---|
964 |
|
---|
965 |
|
---|
966 | RTR3DECL(int) RTTcpWrite(RTSOCKET Sock, const void *pvBuffer, size_t cbBuffer)
|
---|
967 | {
|
---|
968 | return RTSocketWrite(Sock, pvBuffer, cbBuffer);
|
---|
969 | }
|
---|
970 |
|
---|
971 |
|
---|
972 | RTR3DECL(int) RTTcpFlush(RTSOCKET Sock)
|
---|
973 | {
|
---|
974 | int fFlag = 1;
|
---|
975 | int rc = rtSocketSetOpt(Sock, IPPROTO_TCP, TCP_NODELAY, &fFlag, sizeof(fFlag));
|
---|
976 | if (RT_SUCCESS(rc))
|
---|
977 | {
|
---|
978 | fFlag = 0;
|
---|
979 | rc = rtSocketSetOpt(Sock, IPPROTO_TCP, TCP_NODELAY, &fFlag, sizeof(fFlag));
|
---|
980 | }
|
---|
981 | return rc;
|
---|
982 | }
|
---|
983 |
|
---|
984 |
|
---|
985 | RTR3DECL(int) RTTcpSetSendCoalescing(RTSOCKET Sock, bool fEnable)
|
---|
986 | {
|
---|
987 | int fFlag = fEnable ? 0 : 1;
|
---|
988 | return rtSocketSetOpt(Sock, IPPROTO_TCP, TCP_NODELAY, &fFlag, sizeof(fFlag));
|
---|
989 | }
|
---|
990 |
|
---|
991 |
|
---|
992 | RTR3DECL(int) RTTcpSetBufferSize(RTSOCKET hSocket, uint32_t cbSize)
|
---|
993 | {
|
---|
994 | int cbIntSize = (int)cbSize;
|
---|
995 | AssertReturn(cbIntSize >= 0, VERR_OUT_OF_RANGE);
|
---|
996 | int rc = rtSocketSetOpt(hSocket, SOL_SOCKET, SO_SNDBUF, &cbIntSize, sizeof(cbIntSize));
|
---|
997 | if (RT_SUCCESS(rc))
|
---|
998 | rc = rtSocketSetOpt(hSocket, SOL_SOCKET, SO_RCVBUF, &cbIntSize, sizeof(cbIntSize));
|
---|
999 | return rc;
|
---|
1000 | }
|
---|
1001 |
|
---|
1002 |
|
---|
1003 | RTR3DECL(int) RTTcpSetKeepAlive(RTSOCKET hSocket, bool fEnable, uint32_t cSecsIdle,
|
---|
1004 | uint32_t cSecsInterval, uint32_t cFailedPktsBeforeClose)
|
---|
1005 | {
|
---|
1006 | #if !defined(RT_OS_WINDOWS)
|
---|
1007 | int fFlag = fEnable ? 1 : 0;
|
---|
1008 | int rc = rtSocketSetOpt(hSocket, SOL_SOCKET, SO_KEEPALIVE, &fFlag, sizeof(fFlag));
|
---|
1009 | if (RT_FAILURE(rc))
|
---|
1010 | return rc;
|
---|
1011 |
|
---|
1012 | # if (defined(TCP_KEEPIDLE) || defined(TCP_KEEPALIVE)) && defined(TCP_KEEPINTVL) && defined(TCP_KEEPCNT)
|
---|
1013 | rc = VINF_SUCCESS;
|
---|
1014 |
|
---|
1015 | /* time in seconds that the connection must be idle before sending keep-alive probes */
|
---|
1016 | if (cSecsIdle)
|
---|
1017 | {
|
---|
1018 | # if defined(TCP_KEEPALIVE) && !defined(TCP_KEEPIDLE) /* macOS */
|
---|
1019 | # define TCP_KEEPIDLE TCP_KEEPALIVE
|
---|
1020 | # endif
|
---|
1021 | rc = rtSocketSetOpt(hSocket, IPPROTO_TCP, TCP_KEEPIDLE, &cSecsIdle, sizeof(cSecsIdle));
|
---|
1022 | if (RT_FAILURE(rc))
|
---|
1023 | return rc;
|
---|
1024 | }
|
---|
1025 |
|
---|
1026 | /* time in seconds between each keep-alive probe */
|
---|
1027 | if (cSecsInterval)
|
---|
1028 | {
|
---|
1029 | rc = rtSocketSetOpt(hSocket, IPPROTO_TCP, TCP_KEEPINTVL, &cSecsInterval, sizeof(cSecsInterval));
|
---|
1030 | if (RT_FAILURE(rc))
|
---|
1031 | return rc;
|
---|
1032 | }
|
---|
1033 |
|
---|
1034 | /* count of keep-alive probes to send which don't receive a response before closing connection */
|
---|
1035 | if (cFailedPktsBeforeClose)
|
---|
1036 | {
|
---|
1037 | rc = rtSocketSetOpt(hSocket, IPPROTO_TCP, TCP_KEEPCNT, &cFailedPktsBeforeClose, sizeof(cFailedPktsBeforeClose));
|
---|
1038 | if (RT_FAILURE(rc))
|
---|
1039 | return rc;
|
---|
1040 | }
|
---|
1041 |
|
---|
1042 | return rc;
|
---|
1043 | # else
|
---|
1044 | return VERR_NOT_SUPPORTED;
|
---|
1045 | # endif
|
---|
1046 | #else
|
---|
1047 | NOREF(cFailedPktsBeforeClose);
|
---|
1048 | return rtSocketSetKeepAlive(hSocket, fEnable, cSecsIdle, cSecsInterval);
|
---|
1049 | #endif
|
---|
1050 | }
|
---|
1051 |
|
---|
1052 |
|
---|
1053 | RTR3DECL(int) RTTcpSelectOne(RTSOCKET Sock, RTMSINTERVAL cMillies)
|
---|
1054 | {
|
---|
1055 | return RTSocketSelectOne(Sock, cMillies);
|
---|
1056 | }
|
---|
1057 |
|
---|
1058 |
|
---|
1059 | RTR3DECL(int) RTTcpSelectOneEx(RTSOCKET Sock, uint32_t fEvents, uint32_t *pfEvents,
|
---|
1060 | RTMSINTERVAL cMillies)
|
---|
1061 | {
|
---|
1062 | return RTSocketSelectOneEx(Sock, fEvents, pfEvents, cMillies);
|
---|
1063 | }
|
---|
1064 |
|
---|
1065 |
|
---|
1066 | RTR3DECL(int) RTTcpGetLocalAddress(RTSOCKET Sock, PRTNETADDR pAddr)
|
---|
1067 | {
|
---|
1068 | return RTSocketGetLocalAddress(Sock, pAddr);
|
---|
1069 | }
|
---|
1070 |
|
---|
1071 |
|
---|
1072 | RTR3DECL(int) RTTcpGetPeerAddress(RTSOCKET Sock, PRTNETADDR pAddr)
|
---|
1073 | {
|
---|
1074 | return RTSocketGetPeerAddress(Sock, pAddr);
|
---|
1075 | }
|
---|
1076 |
|
---|
1077 |
|
---|
1078 | RTR3DECL(int) RTTcpSgWrite(RTSOCKET Sock, PCRTSGBUF pSgBuf)
|
---|
1079 | {
|
---|
1080 | return RTSocketSgWrite(Sock, pSgBuf);
|
---|
1081 | }
|
---|
1082 |
|
---|
1083 |
|
---|
1084 | RTR3DECL(int) RTTcpSgWriteL(RTSOCKET hSocket, size_t cSegs, ...)
|
---|
1085 | {
|
---|
1086 | va_list va;
|
---|
1087 | va_start(va, cSegs);
|
---|
1088 | int rc = RTSocketSgWriteLV(hSocket, cSegs, va);
|
---|
1089 | va_end(va);
|
---|
1090 | return rc;
|
---|
1091 | }
|
---|
1092 |
|
---|
1093 |
|
---|
1094 | RTR3DECL(int) RTTcpSgWriteLV(RTSOCKET hSocket, size_t cSegs, va_list va)
|
---|
1095 | {
|
---|
1096 | return RTSocketSgWriteLV(hSocket, cSegs, va);
|
---|
1097 | }
|
---|
1098 |
|
---|
1099 |
|
---|
1100 | RTR3DECL(int) RTTcpReadNB(RTSOCKET Sock, void *pvBuffer, size_t cbBuffer, size_t *pcbRead)
|
---|
1101 | {
|
---|
1102 | return RTSocketReadNB(Sock, pvBuffer, cbBuffer, pcbRead);
|
---|
1103 | }
|
---|
1104 |
|
---|
1105 |
|
---|
1106 | RTR3DECL(int) RTTcpWriteNB(RTSOCKET Sock, const void *pvBuffer, size_t cbBuffer, size_t *pcbWritten)
|
---|
1107 | {
|
---|
1108 | return RTSocketWriteNB(Sock, pvBuffer, cbBuffer, pcbWritten);
|
---|
1109 | }
|
---|
1110 |
|
---|
1111 |
|
---|
1112 | RTR3DECL(int) RTTcpSgWriteNB(RTSOCKET Sock, PCRTSGBUF pSgBuf, size_t *pcbWritten)
|
---|
1113 | {
|
---|
1114 | return RTSocketSgWriteNB(Sock, pSgBuf, pcbWritten);
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 |
|
---|
1118 | RTR3DECL(int) RTTcpSgWriteLNB(RTSOCKET hSocket, size_t cSegs, size_t *pcbWritten, ...)
|
---|
1119 | {
|
---|
1120 | va_list va;
|
---|
1121 | va_start(va, pcbWritten);
|
---|
1122 | int rc = RTSocketSgWriteLVNB(hSocket, cSegs, pcbWritten, va);
|
---|
1123 | va_end(va);
|
---|
1124 | return rc;
|
---|
1125 | }
|
---|
1126 |
|
---|
1127 |
|
---|
1128 | RTR3DECL(int) RTTcpSgWriteLVNB(RTSOCKET hSocket, size_t cSegs, size_t *pcbWritten, va_list va)
|
---|
1129 | {
|
---|
1130 | return RTSocketSgWriteLVNB(hSocket, cSegs, pcbWritten, va);
|
---|
1131 | }
|
---|
1132 |
|
---|