1 | /* $Id: AudioTestServiceTcp.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * AudioTestServiceTcp - Audio test execution server, TCP/IP Transport Layer.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2021-2024 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 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 |
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29 | /*********************************************************************************************************************************
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30 | * Header Files *
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31 | *********************************************************************************************************************************/
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32 | #define LOG_GROUP LOG_GROUP_AUDIO_TEST
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33 | #include <iprt/log.h>
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34 |
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35 | #include <iprt/asm.h>
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36 | #include <iprt/assert.h>
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37 | #include <iprt/critsect.h>
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38 | #include <iprt/err.h>
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39 | #include <iprt/mem.h>
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40 | #include <iprt/message.h>
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41 | #include <iprt/poll.h>
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42 | #include <iprt/string.h>
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43 | #include <iprt/tcp.h>
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44 | #include <iprt/thread.h>
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45 | #include <iprt/time.h>
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46 |
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47 | #include <VBox/log.h>
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48 |
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49 | #include "AudioTestService.h"
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50 | #include "AudioTestServiceInternal.h"
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51 |
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52 |
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53 | /*********************************************************************************************************************************
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54 | * Defined Constants And Macros *
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55 | *********************************************************************************************************************************/
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56 |
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57 |
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58 | /*********************************************************************************************************************************
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59 | * Structures and Typedefs *
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60 | *********************************************************************************************************************************/
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61 | /**
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62 | * TCP specific client data.
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63 | */
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64 | typedef struct ATSTRANSPORTCLIENT
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65 | {
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66 | /** Socket of the current client. */
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67 | RTSOCKET hTcpClient;
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68 | /** Indicates whether \a hTcpClient comes from the server or from a client
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69 | * connect (relevant when closing it). */
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70 | bool fFromServer;
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71 | /** The size of the stashed data. */
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72 | size_t cbTcpStashed;
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73 | /** The size of the stashed data allocation. */
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74 | size_t cbTcpStashedAlloced;
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75 | /** The stashed data. */
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76 | uint8_t *pbTcpStashed;
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77 | } ATSTRANSPORTCLIENT;
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78 |
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79 | /**
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80 | * Structure for keeping Audio Test Service (ATS) transport instance-specific data.
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81 | */
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82 | typedef struct ATSTRANSPORTINST
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83 | {
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84 | /** Critical section for serializing access. */
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85 | RTCRITSECT CritSect;
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86 | /** Connection mode to use. */
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87 | ATSCONNMODE enmConnMode;
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88 | /** The addresses to bind to. Empty string means any. */
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89 | char szBindAddr[256];
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90 | /** The TCP port to listen to. */
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91 | uint32_t uBindPort;
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92 | /** The addresses to connect to if running in reversed (VM NATed) mode. */
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93 | char szConnectAddr[256];
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94 | /** The TCP port to connect to if running in reversed (VM NATed) mode. */
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95 | uint32_t uConnectPort;
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96 | /** Pointer to the TCP server instance. */
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97 | PRTTCPSERVER pTcpServer;
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98 | /** Thread calling RTTcpServerListen2. */
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99 | RTTHREAD hThreadServer;
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100 | /** Thread calling RTTcpClientConnect. */
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101 | RTTHREAD hThreadConnect;
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102 | /** The main thread handle (for signalling). */
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103 | RTTHREAD hThreadMain;
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104 | /** Stop connecting attempts when set. */
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105 | bool fStopConnecting;
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106 | /** Connect cancel cookie. */
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107 | PRTTCPCLIENTCONNECTCANCEL volatile pConnectCancelCookie;
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108 | } ATSTRANSPORTINST;
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109 | /** Pointer to an Audio Test Service (ATS) TCP/IP transport instance. */
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110 | typedef ATSTRANSPORTINST *PATSTRANSPORTINST;
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111 |
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112 | /**
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113 | * Structure holding an ATS connection context, which is
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114 | * required when connecting a client via server (listening) or client (connecting).
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115 | */
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116 | typedef struct ATSCONNCTX
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117 | {
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118 | /** Pointer to transport instance to use. */
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119 | PATSTRANSPORTINST pInst;
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120 | /** Pointer to transport client to connect. */
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121 | PATSTRANSPORTCLIENT pClient;
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122 | /** Connection timeout (in ms).
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123 | * Use RT_INDEFINITE_WAIT to wait indefinitely. */
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124 | uint32_t msTimeout;
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125 | } ATSCONNCTX;
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126 | /** Pointer to an Audio Test Service (ATS) TCP/IP connection context. */
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127 | typedef ATSCONNCTX *PATSCONNCTX;
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128 |
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129 |
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130 | /*********************************************************************************************************************************
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131 | * Global Variables *
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132 | *********************************************************************************************************************************/
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133 |
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134 | /**
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135 | * Disconnects the current client and frees all stashed data.
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136 | *
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137 | * @param pThis Transport instance.
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138 | * @param pClient Client to disconnect.
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139 | */
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140 | static void atsTcpDisconnectClient(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
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141 | {
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142 | RT_NOREF(pThis);
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143 |
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144 | LogRelFlowFunc(("pClient=%RTsock\n", pClient->hTcpClient));
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145 |
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146 | if (pClient->hTcpClient != NIL_RTSOCKET)
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147 | {
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148 | LogRelFlowFunc(("%RTsock\n", pClient->hTcpClient));
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149 |
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150 | int rc;
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151 | if (pClient->fFromServer)
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152 | rc = RTTcpServerDisconnectClient2(pClient->hTcpClient);
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153 | else
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154 | rc = RTTcpClientClose(pClient->hTcpClient);
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155 | pClient->hTcpClient = NIL_RTSOCKET;
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156 | AssertRCSuccess(rc);
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157 | }
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158 |
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159 | if (pClient->pbTcpStashed)
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160 | {
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161 | RTMemFree(pClient->pbTcpStashed);
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162 | pClient->pbTcpStashed = NULL;
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163 | }
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164 | }
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165 |
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166 | /**
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167 | * Free's a client.
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168 | *
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169 | * @param pThis Transport instance.
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170 | * @param pClient Client to free.
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171 | * The pointer will be invalid after calling.
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172 | */
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173 | static void atsTcpFreeClient(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
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174 | {
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175 | if (!pClient)
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176 | return;
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177 |
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178 | /* Make sure to disconnect first. */
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179 | atsTcpDisconnectClient(pThis, pClient);
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180 |
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181 | RTMemFree(pClient);
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182 | pClient = NULL;
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183 | }
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184 |
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185 | /**
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186 | * Sets the current client socket in a safe manner.
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187 | *
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188 | * @returns NIL_RTSOCKET if consumed, otherwise hTcpClient.
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189 | * @param pThis Transport instance.
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190 | * @param pClient Client to set the socket for.
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191 | * @param fFromServer Whether the socket is from a server (listening) or client (connecting) call.
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192 | * Important when closing / disconnecting.
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193 | * @param hTcpClient The client socket.
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194 | */
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195 | static RTSOCKET atsTcpSetClient(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient, bool fFromServer, RTSOCKET hTcpClient)
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196 | {
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197 | RTCritSectEnter(&pThis->CritSect);
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198 | if ( pClient->hTcpClient == NIL_RTSOCKET
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199 | && !pThis->fStopConnecting)
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200 | {
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201 | LogRelFlowFunc(("New client %RTsock connected (fFromServer=%RTbool)\n", hTcpClient, fFromServer));
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202 |
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203 | pClient->fFromServer = fFromServer;
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204 | pClient->hTcpClient = hTcpClient;
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205 | hTcpClient = NIL_RTSOCKET; /* Invalidate, as pClient has now ownership. */
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206 | }
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207 | RTCritSectLeave(&pThis->CritSect);
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208 | return hTcpClient;
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209 | }
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210 |
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211 | /**
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212 | * Checks if it's a fatal RTTcpClientConnect return code.
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213 | *
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214 | * @returns true / false.
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215 | * @param rc The IPRT status code.
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216 | */
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217 | static bool atsTcpIsFatalClientConnectStatus(int rc)
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218 | {
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219 | return rc != VERR_NET_UNREACHABLE
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220 | && rc != VERR_NET_HOST_DOWN
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221 | && rc != VERR_NET_HOST_UNREACHABLE
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222 | && rc != VERR_NET_CONNECTION_REFUSED
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223 | && rc != VERR_TIMEOUT
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224 | && rc != VERR_NET_CONNECTION_TIMED_OUT;
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225 | }
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226 |
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227 | /**
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228 | * Server mode connection thread.
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229 | *
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230 | * @returns iprt status code.
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231 | * @param hSelf Thread handle. Ignored.
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232 | * @param pvUser Pointer to ATSTRANSPORTINST the thread is bound to.
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233 | */
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234 | static DECLCALLBACK(int) atsTcpServerConnectThread(RTTHREAD hSelf, void *pvUser)
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235 | {
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236 | RT_NOREF(hSelf);
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237 |
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238 | PATSCONNCTX pConnCtx = (PATSCONNCTX)pvUser;
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239 | PATSTRANSPORTINST pThis = pConnCtx->pInst;
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240 | PATSTRANSPORTCLIENT pClient = pConnCtx->pClient;
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241 |
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242 | /** @todo Implement cancellation support for using pConnCtx->msTimeout. */
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243 |
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244 | LogRelFlowFuncEnter();
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245 |
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246 | RTSOCKET hTcpClient;
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247 | int rc = RTTcpServerListen2(pThis->pTcpServer, &hTcpClient);
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248 | if (RT_SUCCESS(rc))
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249 | {
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250 | hTcpClient = atsTcpSetClient(pThis, pClient, true /* fFromServer */, hTcpClient);
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251 | RTTcpServerDisconnectClient2(hTcpClient);
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252 | }
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253 |
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254 | LogRelFlowFuncLeaveRC(rc);
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255 | return rc;
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256 | }
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257 |
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258 | /**
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259 | * Client mode connection thread.
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260 | *
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261 | * @returns iprt status code.
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262 | * @param hSelf Thread handle. Use to sleep on. The main thread will
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263 | * signal it to speed up thread shutdown.
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264 | * @param pvUser Pointer to a connection context (PATSCONNCTX) the thread is bound to.
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265 | */
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266 | static DECLCALLBACK(int) atsTcpClientConnectThread(RTTHREAD hSelf, void *pvUser)
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267 | {
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268 | PATSCONNCTX pConnCtx = (PATSCONNCTX)pvUser;
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269 | PATSTRANSPORTINST pThis = pConnCtx->pInst;
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270 | PATSTRANSPORTCLIENT pClient = pConnCtx->pClient;
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271 |
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272 | uint64_t msStartTs = RTTimeMilliTS();
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273 |
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274 | LogRelFlowFuncEnter();
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275 |
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276 | for (;;)
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277 | {
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278 | /* Stop? */
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279 | RTCritSectEnter(&pThis->CritSect);
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280 | bool fStop = pThis->fStopConnecting;
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281 | RTCritSectLeave(&pThis->CritSect);
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282 | if (fStop)
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283 | return VINF_SUCCESS;
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284 |
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285 | /* Try connect. */ /** @todo make cancelable! */
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286 | RTSOCKET hTcpClient;
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287 | int rc = RTTcpClientConnectEx(pThis->szConnectAddr, pThis->uConnectPort, &hTcpClient,
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288 | RT_SOCKETCONNECT_DEFAULT_WAIT, &pThis->pConnectCancelCookie);
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289 | if (RT_SUCCESS(rc))
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290 | {
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291 | hTcpClient = atsTcpSetClient(pThis, pClient, false /* fFromServer */, hTcpClient);
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292 | RTTcpClientCloseEx(hTcpClient, true /* fGracefulShutdown*/);
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293 | break;
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294 | }
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295 |
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296 | if (atsTcpIsFatalClientConnectStatus(rc))
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297 | return rc;
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298 |
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299 | if ( pConnCtx->msTimeout != RT_INDEFINITE_WAIT
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300 | && RTTimeMilliTS() - msStartTs >= pConnCtx->msTimeout)
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301 | {
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302 | LogRelFlowFunc(("Timed out (%RU32ms)\n", pConnCtx->msTimeout));
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303 | return VERR_TIMEOUT;
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304 | }
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305 |
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306 | /* Delay a wee bit before retrying. */
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307 | RTThreadUserWait(hSelf, 1536);
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308 | }
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309 |
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310 | LogRelFlowFuncLeave();
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311 | return VINF_SUCCESS;
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312 | }
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313 |
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314 | /**
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315 | * Wait on the threads to complete.
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316 | *
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317 | * @returns Thread status (if collected), otherwise VINF_SUCCESS.
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318 | * @param pThis Transport instance.
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319 | * @param cMillies The period to wait on each thread.
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320 | */
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321 | static int atsTcpConnectWaitOnThreads(PATSTRANSPORTINST pThis, RTMSINTERVAL cMillies)
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322 | {
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323 | int rcRet = VINF_SUCCESS;
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324 |
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325 | LogRelFlowFuncEnter();
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326 |
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327 | if (pThis->hThreadConnect != NIL_RTTHREAD)
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328 | {
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329 | int rcThread;
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330 | int rc2 = RTThreadWait(pThis->hThreadConnect, cMillies, &rcThread);
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331 | if (RT_SUCCESS(rc2))
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332 | {
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333 | pThis->hThreadConnect = NIL_RTTHREAD;
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334 | rcRet = rcThread;
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335 | }
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336 | }
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337 |
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338 | if (pThis->hThreadServer != NIL_RTTHREAD)
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339 | {
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340 | int rcThread;
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341 | int rc2 = RTThreadWait(pThis->hThreadServer, cMillies, &rcThread);
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342 | if (RT_SUCCESS(rc2))
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343 | {
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344 | pThis->hThreadServer = NIL_RTTHREAD;
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345 | if (RT_SUCCESS(rc2))
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346 | rcRet = rcThread;
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347 | }
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348 | }
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349 |
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350 | LogRelFlowFuncLeaveRC(rcRet);
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351 | return rcRet;
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352 | }
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353 |
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354 | /**
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355 | * @interface_method_impl{ATSTRANSPORT,pfnWaitForConnect}
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356 | */
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357 | static DECLCALLBACK(int) atsTcpWaitForConnect(PATSTRANSPORTINST pThis, RTMSINTERVAL msTimeout,
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358 | bool *pfFromServer, PPATSTRANSPORTCLIENT ppClientNew)
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359 | {
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360 | PATSTRANSPORTCLIENT pClient = (PATSTRANSPORTCLIENT)RTMemAllocZ(sizeof(ATSTRANSPORTCLIENT));
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361 | AssertPtrReturn(pClient, VERR_NO_MEMORY);
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362 |
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363 | int rc;
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364 |
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365 | LogRelFlowFunc(("msTimeout=%RU32, enmConnMode=%#x\n", msTimeout, pThis->enmConnMode));
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366 |
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367 | uint64_t msStartTs = RTTimeMilliTS();
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368 |
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369 | if (pThis->enmConnMode == ATSCONNMODE_SERVER)
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370 | {
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371 | /** @todo Implement cancellation support for using \a msTimeout. */
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372 |
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373 | pClient->fFromServer = true;
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374 | rc = RTTcpServerListen2(pThis->pTcpServer, &pClient->hTcpClient);
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375 | LogRelFlowFunc(("RTTcpServerListen2(%RTsock) -> %Rrc\n", pClient->hTcpClient, rc));
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376 | }
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377 | else if (pThis->enmConnMode == ATSCONNMODE_CLIENT)
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378 | {
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379 | pClient->fFromServer = false;
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380 | for (;;)
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381 | {
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382 | LogRelFlowFunc(("Calling RTTcpClientConnect(%s, %u,)...\n", pThis->szConnectAddr, pThis->uConnectPort));
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383 | rc = RTTcpClientConnect(pThis->szConnectAddr, pThis->uConnectPort, &pClient->hTcpClient);
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384 | LogRelFlowFunc(("RTTcpClientConnect(%RTsock) -> %Rrc\n", pClient->hTcpClient, rc));
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385 | if (RT_SUCCESS(rc) || atsTcpIsFatalClientConnectStatus(rc))
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386 | break;
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387 |
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388 | if ( msTimeout != RT_INDEFINITE_WAIT
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389 | && RTTimeMilliTS() - msStartTs >= msTimeout)
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390 | {
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391 | rc = VERR_TIMEOUT;
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392 | break;
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393 | }
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394 |
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395 | if (pThis->fStopConnecting)
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396 | {
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397 | rc = VINF_SUCCESS;
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398 | break;
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399 | }
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400 |
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401 | /* Delay a wee bit before retrying. */
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402 | RTThreadSleep(1536);
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403 | }
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404 | }
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405 | else
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406 | {
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407 | Assert(pThis->enmConnMode == ATSCONNMODE_BOTH);
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408 |
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409 | /*
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410 | * Create client threads.
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411 | */
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412 | RTCritSectEnter(&pThis->CritSect);
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413 |
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414 | pThis->fStopConnecting = false;
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415 | RTCritSectLeave(&pThis->CritSect);
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416 |
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417 | atsTcpConnectWaitOnThreads(pThis, 32 /* cMillies */);
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418 |
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419 | ATSCONNCTX ConnCtx;
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420 | RT_ZERO(ConnCtx);
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421 | ConnCtx.pInst = pThis;
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422 | ConnCtx.pClient = pClient;
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423 | ConnCtx.msTimeout = msTimeout;
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424 |
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425 | rc = VINF_SUCCESS;
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426 | if (pThis->hThreadConnect == NIL_RTTHREAD)
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427 | {
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428 | pThis->pConnectCancelCookie = NULL;
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429 | rc = RTThreadCreate(&pThis->hThreadConnect, atsTcpClientConnectThread, &ConnCtx, 0, RTTHREADTYPE_DEFAULT,
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430 | RTTHREADFLAGS_WAITABLE, "tcpconn");
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431 | }
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432 | if (pThis->hThreadServer == NIL_RTTHREAD && RT_SUCCESS(rc))
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433 | rc = RTThreadCreate(&pThis->hThreadServer, atsTcpServerConnectThread, &ConnCtx, 0, RTTHREADTYPE_DEFAULT,
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434 | RTTHREADFLAGS_WAITABLE, "tcpserv");
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435 |
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436 | RTCritSectEnter(&pThis->CritSect);
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437 |
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438 | /*
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439 | * Wait for connection to be established.
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440 | */
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441 | while ( RT_SUCCESS(rc)
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442 | && pClient->hTcpClient == NIL_RTSOCKET)
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443 | {
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444 | RTCritSectLeave(&pThis->CritSect);
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445 | rc = atsTcpConnectWaitOnThreads(pThis, 10 /* cMillies */);
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446 | RTCritSectEnter(&pThis->CritSect);
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447 | }
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448 |
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449 | /*
|
---|
450 | * Cancel the threads.
|
---|
451 | */
|
---|
452 | pThis->fStopConnecting = true;
|
---|
453 |
|
---|
454 | RTCritSectLeave(&pThis->CritSect);
|
---|
455 | RTTcpClientCancelConnect(&pThis->pConnectCancelCookie);
|
---|
456 | }
|
---|
457 |
|
---|
458 | if (RT_SUCCESS(rc))
|
---|
459 | {
|
---|
460 | if (pfFromServer)
|
---|
461 | *pfFromServer = pClient->fFromServer;
|
---|
462 | *ppClientNew = pClient;
|
---|
463 | }
|
---|
464 | else
|
---|
465 | {
|
---|
466 | atsTcpFreeClient(pThis, pClient);
|
---|
467 | pClient = NULL;
|
---|
468 | }
|
---|
469 |
|
---|
470 | if (RT_FAILURE(rc))
|
---|
471 | LogRelFunc(("Failed with %Rrc\n", rc));
|
---|
472 |
|
---|
473 | return rc;
|
---|
474 | }
|
---|
475 |
|
---|
476 | /**
|
---|
477 | * @interface_method_impl{ATSTRANSPORT,pfnNotifyReboot}
|
---|
478 | */
|
---|
479 | static DECLCALLBACK(void) atsTcpNotifyReboot(PATSTRANSPORTINST pThis)
|
---|
480 | {
|
---|
481 | LogRelFlowFuncEnter();
|
---|
482 | if (pThis->pTcpServer)
|
---|
483 | {
|
---|
484 | int rc = RTTcpServerDestroy(pThis->pTcpServer);
|
---|
485 | if (RT_FAILURE(rc))
|
---|
486 | LogRelFunc(("RTTcpServerDestroy failed, rc=%Rrc", rc));
|
---|
487 | pThis->pTcpServer = NULL;
|
---|
488 | }
|
---|
489 | LogRelFlowFuncLeave();
|
---|
490 | }
|
---|
491 |
|
---|
492 | /**
|
---|
493 | * @interface_method_impl{ATSTRANSPORT,pfnNotifyBye}
|
---|
494 | */
|
---|
495 | static DECLCALLBACK(void) atsTcpNotifyBye(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
|
---|
496 | {
|
---|
497 | LogRelFlowFunc(("pClient=%RTsock\n", pClient->hTcpClient));
|
---|
498 | atsTcpDisconnectClient(pThis, pClient);
|
---|
499 | }
|
---|
500 |
|
---|
501 | /**
|
---|
502 | * @interface_method_impl{ATSTRANSPORT,pfnNotifyHowdy}
|
---|
503 | */
|
---|
504 | static DECLCALLBACK(void) atsTcpNotifyHowdy(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
|
---|
505 | {
|
---|
506 | LogRelFlowFunc(("pClient=%RTsock\n", pClient->hTcpClient));
|
---|
507 |
|
---|
508 | /* nothing to do here */
|
---|
509 | RT_NOREF(pThis);
|
---|
510 | }
|
---|
511 |
|
---|
512 | /**
|
---|
513 | * @interface_method_impl{ATSTRANSPORT,pfnBabble}
|
---|
514 | */
|
---|
515 | static DECLCALLBACK(void) atsTcpBabble(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient, PCATSPKTHDR pPktHdr, RTMSINTERVAL cMsSendTimeout)
|
---|
516 | {
|
---|
517 | /*
|
---|
518 | * Try send the babble reply.
|
---|
519 | */
|
---|
520 | RT_NOREF(cMsSendTimeout); /** @todo implement the timeout here; non-blocking write + select-on-write. */
|
---|
521 | int rc;
|
---|
522 | size_t cbToSend = RT_ALIGN_Z(pPktHdr->cb, ATSPKT_ALIGNMENT);
|
---|
523 | do rc = RTTcpWrite(pClient->hTcpClient, pPktHdr, cbToSend);
|
---|
524 | while (rc == VERR_INTERRUPTED);
|
---|
525 |
|
---|
526 | LogRelFlowFunc(("pClient=%RTsock, rc=%Rrc\n", pClient->hTcpClient, rc));
|
---|
527 |
|
---|
528 | /*
|
---|
529 | * Disconnect the client.
|
---|
530 | */
|
---|
531 | atsTcpDisconnectClient(pThis, pClient);
|
---|
532 | }
|
---|
533 |
|
---|
534 | /**
|
---|
535 | * @interface_method_impl{ATSTRANSPORT,pfnSendPkt}
|
---|
536 | */
|
---|
537 | static DECLCALLBACK(int) atsTcpSendPkt(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient, PCATSPKTHDR pPktHdr)
|
---|
538 | {
|
---|
539 | AssertReturn(pPktHdr->cb >= sizeof(ATSPKTHDR), VERR_INVALID_PARAMETER);
|
---|
540 |
|
---|
541 | /*
|
---|
542 | * Write it.
|
---|
543 | */
|
---|
544 | size_t cbToSend = RT_ALIGN_Z(pPktHdr->cb, ATSPKT_ALIGNMENT);
|
---|
545 |
|
---|
546 | Log3Func(("%RU32 -> %zu\n", pPktHdr->cb, cbToSend));
|
---|
547 |
|
---|
548 | LogRel4(("pClient=%RTsock\n", pClient->hTcpClient));
|
---|
549 | LogRel4(("Header:\n"
|
---|
550 | "%.*Rhxd\n", RT_MIN(sizeof(ATSPKTHDR), cbToSend), pPktHdr));
|
---|
551 |
|
---|
552 | if (cbToSend > sizeof(ATSPKTHDR))
|
---|
553 | LogRel4(("Payload:\n"
|
---|
554 | "%.*Rhxd\n",
|
---|
555 | RT_MIN(64, cbToSend - sizeof(ATSPKTHDR)), (uint8_t *)pPktHdr + sizeof(ATSPKTHDR)));
|
---|
556 |
|
---|
557 | int rc = RTTcpWrite(pClient->hTcpClient, pPktHdr, cbToSend);
|
---|
558 | if ( RT_FAILURE(rc)
|
---|
559 | && rc != VERR_INTERRUPTED)
|
---|
560 | {
|
---|
561 | /* assume fatal connection error. */
|
---|
562 | LogRelFunc(("RTTcpWrite -> %Rrc -> atsTcpDisconnectClient(%RTsock)\n", rc, pClient->hTcpClient));
|
---|
563 | atsTcpDisconnectClient(pThis, pClient);
|
---|
564 | }
|
---|
565 |
|
---|
566 | LogRel3(("atsTcpSendPkt: pClient=%RTsock, achOpcode=%.8s, cbSent=%zu -> %Rrc\n", pClient->hTcpClient, (const char *)pPktHdr->achOpcode, cbToSend, rc));
|
---|
567 | return rc;
|
---|
568 | }
|
---|
569 |
|
---|
570 | /**
|
---|
571 | * @interface_method_impl{ATSTRANSPORT,pfnRecvPkt}
|
---|
572 | */
|
---|
573 | static DECLCALLBACK(int) atsTcpRecvPkt(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient, PPATSPKTHDR ppPktHdr)
|
---|
574 | {
|
---|
575 | int rc = VINF_SUCCESS;
|
---|
576 | *ppPktHdr = NULL;
|
---|
577 |
|
---|
578 | LogRel4(("pClient=%RTsock (cbTcpStashed=%zu, cbTcpStashedAlloced=%zu)\n",
|
---|
579 | pClient->hTcpClient, pClient->cbTcpStashed, pClient->cbTcpStashedAlloced));
|
---|
580 |
|
---|
581 | /*
|
---|
582 | * Read state.
|
---|
583 | */
|
---|
584 | size_t offData = 0;
|
---|
585 | size_t cbData = 0;
|
---|
586 | size_t cbDataAlloced;
|
---|
587 | uint8_t *pbData = NULL;
|
---|
588 |
|
---|
589 | /*
|
---|
590 | * Any stashed data?
|
---|
591 | */
|
---|
592 | if (pClient->cbTcpStashedAlloced)
|
---|
593 | {
|
---|
594 | offData = pClient->cbTcpStashed;
|
---|
595 | cbDataAlloced = pClient->cbTcpStashedAlloced;
|
---|
596 | pbData = pClient->pbTcpStashed;
|
---|
597 |
|
---|
598 | pClient->cbTcpStashed = 0;
|
---|
599 | pClient->cbTcpStashedAlloced = 0;
|
---|
600 | pClient->pbTcpStashed = NULL;
|
---|
601 | }
|
---|
602 | else
|
---|
603 | {
|
---|
604 | cbDataAlloced = RT_ALIGN_Z(64, ATSPKT_ALIGNMENT);
|
---|
605 | pbData = (uint8_t *)RTMemAlloc(cbDataAlloced);
|
---|
606 | AssertPtrReturn(pbData, VERR_NO_MEMORY);
|
---|
607 | }
|
---|
608 |
|
---|
609 | /*
|
---|
610 | * Read and validate the length.
|
---|
611 | */
|
---|
612 | while (offData < sizeof(uint32_t))
|
---|
613 | {
|
---|
614 | size_t cbRead;
|
---|
615 | rc = RTTcpRead(pClient->hTcpClient, pbData + offData, sizeof(uint32_t) - offData, &cbRead);
|
---|
616 | if (RT_FAILURE(rc))
|
---|
617 | break;
|
---|
618 | if (cbRead == 0)
|
---|
619 | {
|
---|
620 | LogRelFunc(("RTTcpRead -> %Rrc / cbRead=0 -> VERR_NET_NOT_CONNECTED (#1)\n", rc));
|
---|
621 | rc = VERR_NET_NOT_CONNECTED;
|
---|
622 | break;
|
---|
623 | }
|
---|
624 | offData += cbRead;
|
---|
625 | }
|
---|
626 | if (RT_SUCCESS(rc))
|
---|
627 | {
|
---|
628 | ASMCompilerBarrier(); /* paranoia^3 */
|
---|
629 | cbData = *(uint32_t volatile *)pbData;
|
---|
630 | if (cbData >= sizeof(ATSPKTHDR) && cbData <= ATSPKT_MAX_SIZE)
|
---|
631 | {
|
---|
632 | /*
|
---|
633 | * Align the length and reallocate the return packet it necessary.
|
---|
634 | */
|
---|
635 | cbData = RT_ALIGN_Z(cbData, ATSPKT_ALIGNMENT);
|
---|
636 | if (cbData > cbDataAlloced)
|
---|
637 | {
|
---|
638 | void *pvNew = RTMemRealloc(pbData, cbData);
|
---|
639 | if (pvNew)
|
---|
640 | {
|
---|
641 | pbData = (uint8_t *)pvNew;
|
---|
642 | cbDataAlloced = cbData;
|
---|
643 | }
|
---|
644 | else
|
---|
645 | rc = VERR_NO_MEMORY;
|
---|
646 | }
|
---|
647 | if (RT_SUCCESS(rc))
|
---|
648 | {
|
---|
649 | /*
|
---|
650 | * Read the remainder of the data.
|
---|
651 | */
|
---|
652 | while (offData < cbData)
|
---|
653 | {
|
---|
654 | size_t cbRead;
|
---|
655 | rc = RTTcpRead(pClient->hTcpClient, pbData + offData, cbData - offData, &cbRead);
|
---|
656 | if (RT_FAILURE(rc))
|
---|
657 | break;
|
---|
658 | if (cbRead == 0)
|
---|
659 | {
|
---|
660 | LogRelFunc(("RTTcpRead -> %Rrc / cbRead=0 -> VERR_NET_NOT_CONNECTED (#2)\n", rc));
|
---|
661 | rc = VERR_NET_NOT_CONNECTED;
|
---|
662 | break;
|
---|
663 | }
|
---|
664 |
|
---|
665 | offData += cbRead;
|
---|
666 | }
|
---|
667 |
|
---|
668 | LogRel4(("Header:\n"
|
---|
669 | "%.*Rhxd\n", sizeof(ATSPKTHDR), pbData));
|
---|
670 |
|
---|
671 | if ( RT_SUCCESS(rc)
|
---|
672 | && cbData > sizeof(ATSPKTHDR))
|
---|
673 | LogRel4(("Payload:\n"
|
---|
674 | "%.*Rhxd\n", RT_MIN(64, cbData - sizeof(ATSPKTHDR)), (uint8_t *)pbData + sizeof(ATSPKTHDR)));
|
---|
675 | }
|
---|
676 | }
|
---|
677 | else
|
---|
678 | {
|
---|
679 | LogRelFunc(("Received invalid packet size (%zu)\n", cbData));
|
---|
680 | rc = VERR_NET_PROTOCOL_ERROR;
|
---|
681 | }
|
---|
682 | }
|
---|
683 | if (RT_SUCCESS(rc))
|
---|
684 | *ppPktHdr = (PATSPKTHDR)pbData;
|
---|
685 | else
|
---|
686 | {
|
---|
687 | /*
|
---|
688 | * Deal with errors.
|
---|
689 | */
|
---|
690 | if (rc == VERR_INTERRUPTED)
|
---|
691 | {
|
---|
692 | /* stash it away for the next call. */
|
---|
693 | pClient->cbTcpStashed = cbData;
|
---|
694 | pClient->cbTcpStashedAlloced = cbDataAlloced;
|
---|
695 | pClient->pbTcpStashed = pbData;
|
---|
696 | }
|
---|
697 | else
|
---|
698 | {
|
---|
699 | RTMemFree(pbData);
|
---|
700 | pbData = NULL;
|
---|
701 |
|
---|
702 | /* assume fatal connection error. */
|
---|
703 | LogRelFunc(("RTTcpRead -> %Rrc -> atsTcpDisconnectClient(%RTsock)\n", rc, pClient->hTcpClient));
|
---|
704 | atsTcpDisconnectClient(pThis, pClient);
|
---|
705 | }
|
---|
706 | }
|
---|
707 |
|
---|
708 | PATSPKTHDR pPktHdr = (PATSPKTHDR)pbData;
|
---|
709 | LogRel3(("atsTcpRecvPkt: pClient=%RTsock, achOpcode=%.8s, cbRead=%zu -> %Rrc\n",
|
---|
710 | pClient->hTcpClient, pPktHdr ? (const char *)pPktHdr->achOpcode : "NONE ", cbData, rc));
|
---|
711 | return rc;
|
---|
712 | }
|
---|
713 |
|
---|
714 | /**
|
---|
715 | * @interface_method_impl{ATSTRANSPORT,pfnPollSetAdd}
|
---|
716 | */
|
---|
717 | static DECLCALLBACK(int) atsTcpPollSetAdd(PATSTRANSPORTINST pThis, RTPOLLSET hPollSet, PATSTRANSPORTCLIENT pClient, uint32_t idStart)
|
---|
718 | {
|
---|
719 | RT_NOREF(pThis);
|
---|
720 | return RTPollSetAddSocket(hPollSet, pClient->hTcpClient, RTPOLL_EVT_READ | RTPOLL_EVT_ERROR, idStart);
|
---|
721 | }
|
---|
722 |
|
---|
723 | /**
|
---|
724 | * @interface_method_impl{ATSTRANSPORT,pfnPollSetRemove}
|
---|
725 | */
|
---|
726 | static DECLCALLBACK(int) atsTcpPollSetRemove(PATSTRANSPORTINST pThis, RTPOLLSET hPollSet, PATSTRANSPORTCLIENT pClient, uint32_t idStart)
|
---|
727 | {
|
---|
728 | RT_NOREF(pThis, pClient);
|
---|
729 | return RTPollSetRemove(hPollSet, idStart);
|
---|
730 | }
|
---|
731 |
|
---|
732 | /**
|
---|
733 | * @interface_method_impl{ATSTRANSPORT,pfnDisconnect}
|
---|
734 | */
|
---|
735 | static DECLCALLBACK(void) atsTcpDisconnect(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
|
---|
736 | {
|
---|
737 | atsTcpFreeClient(pThis, pClient);
|
---|
738 | }
|
---|
739 |
|
---|
740 | /**
|
---|
741 | * @interface_method_impl{ATSTRANSPORT,pfnPollIn}
|
---|
742 | */
|
---|
743 | static DECLCALLBACK(bool) atsTcpPollIn(PATSTRANSPORTINST pThis, PATSTRANSPORTCLIENT pClient)
|
---|
744 | {
|
---|
745 | RT_NOREF(pThis);
|
---|
746 | int rc = RTTcpSelectOne(pClient->hTcpClient, 0/*cMillies*/);
|
---|
747 | return RT_SUCCESS(rc);
|
---|
748 | }
|
---|
749 |
|
---|
750 | /**
|
---|
751 | * @interface_method_impl{ATSTRANSPORT,pfnStop}
|
---|
752 | */
|
---|
753 | static DECLCALLBACK(void) atsTcpStop(PATSTRANSPORTINST pThis)
|
---|
754 | {
|
---|
755 | LogRelFlowFuncEnter();
|
---|
756 |
|
---|
757 | /* Signal thread */
|
---|
758 | if (RTCritSectIsInitialized(&pThis->CritSect))
|
---|
759 | {
|
---|
760 | RTCritSectEnter(&pThis->CritSect);
|
---|
761 | pThis->fStopConnecting = true;
|
---|
762 | RTCritSectLeave(&pThis->CritSect);
|
---|
763 | }
|
---|
764 |
|
---|
765 | if (pThis->hThreadConnect != NIL_RTTHREAD)
|
---|
766 | {
|
---|
767 | RTThreadUserSignal(pThis->hThreadConnect);
|
---|
768 | RTTcpClientCancelConnect(&pThis->pConnectCancelCookie);
|
---|
769 | }
|
---|
770 |
|
---|
771 | /* Shut down the server (will wake up thread). */
|
---|
772 | if (pThis->pTcpServer)
|
---|
773 | {
|
---|
774 | LogRelFlowFunc(("Destroying server...\n"));
|
---|
775 | int rc = RTTcpServerDestroy(pThis->pTcpServer);
|
---|
776 | if (RT_FAILURE(rc))
|
---|
777 | LogRelFunc(("RTTcpServerDestroy failed with %Rrc", rc));
|
---|
778 | pThis->pTcpServer = NULL;
|
---|
779 | }
|
---|
780 |
|
---|
781 | /* Wait for the thread (they should've had some time to quit by now). */
|
---|
782 | atsTcpConnectWaitOnThreads(pThis, 15000);
|
---|
783 |
|
---|
784 | LogRelFlowFuncLeave();
|
---|
785 | }
|
---|
786 |
|
---|
787 | /**
|
---|
788 | * @interface_method_impl{ATSTRANSPORT,pfnCreate}
|
---|
789 | */
|
---|
790 | static DECLCALLBACK(int) atsTcpCreate(PATSTRANSPORTINST *ppThis)
|
---|
791 | {
|
---|
792 | PATSTRANSPORTINST pThis = (PATSTRANSPORTINST)RTMemAllocZ(sizeof(ATSTRANSPORTINST));
|
---|
793 | AssertPtrReturn(pThis, VERR_NO_MEMORY);
|
---|
794 |
|
---|
795 | int rc = RTCritSectInit(&pThis->CritSect);
|
---|
796 | if (RT_SUCCESS(rc))
|
---|
797 | {
|
---|
798 | *ppThis = pThis;
|
---|
799 | }
|
---|
800 |
|
---|
801 | return rc;
|
---|
802 | }
|
---|
803 |
|
---|
804 | /**
|
---|
805 | * @interface_method_impl{ATSTRANSPORT,pfnDestroy}
|
---|
806 | */
|
---|
807 | static DECLCALLBACK(int) atsTcpDestroy(PATSTRANSPORTINST pThis)
|
---|
808 | {
|
---|
809 | /* Stop things first. */
|
---|
810 | atsTcpStop(pThis);
|
---|
811 |
|
---|
812 | /* Finally, clean up the critical section. */
|
---|
813 | if (RTCritSectIsInitialized(&pThis->CritSect))
|
---|
814 | RTCritSectDelete(&pThis->CritSect);
|
---|
815 |
|
---|
816 | RTMemFree(pThis);
|
---|
817 | pThis = NULL;
|
---|
818 |
|
---|
819 | return VINF_SUCCESS;
|
---|
820 | }
|
---|
821 |
|
---|
822 | /**
|
---|
823 | * @interface_method_impl{ATSTRANSPORT,pfnStart}
|
---|
824 | */
|
---|
825 | static DECLCALLBACK(int) atsTcpStart(PATSTRANSPORTINST pThis)
|
---|
826 | {
|
---|
827 | int rc = VINF_SUCCESS;
|
---|
828 |
|
---|
829 | if (pThis->enmConnMode != ATSCONNMODE_CLIENT)
|
---|
830 | {
|
---|
831 | rc = RTTcpServerCreateEx(pThis->szBindAddr[0] ? pThis->szBindAddr : NULL, pThis->uBindPort, &pThis->pTcpServer);
|
---|
832 | if (RT_FAILURE(rc))
|
---|
833 | {
|
---|
834 | if (rc == VERR_NET_DOWN)
|
---|
835 | {
|
---|
836 | LogRelFunc(("RTTcpServerCreateEx(%s, %u,) failed: %Rrc, retrying for 20 seconds...\n",
|
---|
837 | pThis->szBindAddr[0] ? pThis->szBindAddr : NULL, pThis->uBindPort, rc));
|
---|
838 | uint64_t StartMs = RTTimeMilliTS();
|
---|
839 | do
|
---|
840 | {
|
---|
841 | RTThreadSleep(1000);
|
---|
842 | rc = RTTcpServerCreateEx(pThis->szBindAddr[0] ? pThis->szBindAddr : NULL, pThis->uBindPort, &pThis->pTcpServer);
|
---|
843 | } while ( rc == VERR_NET_DOWN
|
---|
844 | && RTTimeMilliTS() - StartMs < 20000);
|
---|
845 | if (RT_SUCCESS(rc))
|
---|
846 | LogRelFunc(("RTTcpServerCreateEx succceeded\n"));
|
---|
847 | }
|
---|
848 |
|
---|
849 | if (RT_FAILURE(rc))
|
---|
850 | {
|
---|
851 | LogRelFunc(("RTTcpServerCreateEx(%s, %u,) failed: %Rrc\n",
|
---|
852 | pThis->szBindAddr[0] ? pThis->szBindAddr : NULL, pThis->uBindPort, rc));
|
---|
853 | }
|
---|
854 | }
|
---|
855 | }
|
---|
856 |
|
---|
857 | return rc;
|
---|
858 | }
|
---|
859 |
|
---|
860 | /**
|
---|
861 | * @interface_method_impl{ATSTRANSPORT,pfnOption}
|
---|
862 | */
|
---|
863 | static DECLCALLBACK(int) atsTcpOption(PATSTRANSPORTINST pThis, int ch, PCRTGETOPTUNION pVal)
|
---|
864 | {
|
---|
865 | int rc;
|
---|
866 |
|
---|
867 | switch (ch)
|
---|
868 | {
|
---|
869 | case ATSTCPOPT_CONN_MODE:
|
---|
870 | pThis->enmConnMode = (ATSCONNMODE)pVal->u32;
|
---|
871 | return VINF_SUCCESS;
|
---|
872 |
|
---|
873 | case ATSTCPOPT_BIND_ADDRESS:
|
---|
874 | rc = RTStrCopy(pThis->szBindAddr, sizeof(pThis->szBindAddr), pVal->psz);
|
---|
875 | if (RT_FAILURE(rc))
|
---|
876 | return RTMsgErrorRc(VERR_INVALID_PARAMETER, "TCP bind address is too long (%Rrc)", rc);
|
---|
877 | if (!pThis->szBindAddr[0])
|
---|
878 | return RTMsgErrorRc(VERR_INVALID_PARAMETER, "No TCP bind address specified: %s", pThis->szBindAddr);
|
---|
879 | return VINF_SUCCESS;
|
---|
880 |
|
---|
881 | case ATSTCPOPT_BIND_PORT:
|
---|
882 | pThis->uBindPort = pVal->u16;
|
---|
883 | return VINF_SUCCESS;
|
---|
884 |
|
---|
885 | case ATSTCPOPT_CONNECT_ADDRESS:
|
---|
886 | rc = RTStrCopy(pThis->szConnectAddr, sizeof(pThis->szConnectAddr), pVal->psz);
|
---|
887 | if (RT_FAILURE(rc))
|
---|
888 | return RTMsgErrorRc(VERR_INVALID_PARAMETER, "TCP connect address is too long (%Rrc)", rc);
|
---|
889 | if (!pThis->szConnectAddr[0])
|
---|
890 | return RTMsgErrorRc(VERR_INVALID_PARAMETER, "No TCP connect address specified");
|
---|
891 | return VINF_SUCCESS;
|
---|
892 |
|
---|
893 | case ATSTCPOPT_CONNECT_PORT:
|
---|
894 | pThis->uConnectPort = pVal->u16;
|
---|
895 | return VINF_SUCCESS;
|
---|
896 |
|
---|
897 | default:
|
---|
898 | break;
|
---|
899 | }
|
---|
900 | return VERR_TRY_AGAIN;
|
---|
901 | }
|
---|
902 |
|
---|
903 | /**
|
---|
904 | * @interface_method_impl{ATSTRANSPORT,pfnUsage}
|
---|
905 | */
|
---|
906 | static DECLCALLBACK(void) atsTcpUsage(PRTSTREAM pStream)
|
---|
907 | {
|
---|
908 | RTStrmPrintf(pStream,
|
---|
909 | " --tcp-conn-mode <0=both|1=client|2=server>\n"
|
---|
910 | " Selects the connection mode\n"
|
---|
911 | " Default: 0 (both)\n"
|
---|
912 | " --tcp-bind-addr[ess] <address>\n"
|
---|
913 | " The address(es) to listen to TCP connection on. Empty string\n"
|
---|
914 | " means any address, this is the default\n"
|
---|
915 | " --tcp-bind-port <port>\n"
|
---|
916 | " The port to listen to TCP connections on\n"
|
---|
917 | " Default: %u\n"
|
---|
918 | " --tcp-connect-addr[ess] <address>\n"
|
---|
919 | " The address of the server to try connect to in client mode\n"
|
---|
920 | " Default: " ATS_TCP_DEF_CONNECT_GUEST_STR "\n"
|
---|
921 | " --tcp-connect-port <port>\n"
|
---|
922 | " The port on the server to connect to in client mode\n"
|
---|
923 | " Default: %u\n"
|
---|
924 | , ATS_TCP_DEF_BIND_PORT_GUEST, ATS_TCP_DEF_CONNECT_PORT_GUEST);
|
---|
925 | }
|
---|
926 |
|
---|
927 | /** Command line options for the TCP/IP transport layer. */
|
---|
928 | static const RTGETOPTDEF g_TcpOpts[] =
|
---|
929 | {
|
---|
930 | { "--tcp-conn-mode", ATSTCPOPT_CONN_MODE, RTGETOPT_REQ_STRING },
|
---|
931 | { "--tcp-bind-addr", ATSTCPOPT_BIND_ADDRESS, RTGETOPT_REQ_STRING },
|
---|
932 | { "--tcp-bind-address", ATSTCPOPT_BIND_ADDRESS, RTGETOPT_REQ_STRING },
|
---|
933 | { "--tcp-bind-port", ATSTCPOPT_BIND_PORT, RTGETOPT_REQ_UINT16 },
|
---|
934 | { "--tcp-connect-addr", ATSTCPOPT_CONNECT_ADDRESS, RTGETOPT_REQ_STRING },
|
---|
935 | { "--tcp-connect-address", ATSTCPOPT_CONNECT_ADDRESS, RTGETOPT_REQ_STRING },
|
---|
936 | { "--tcp-connect-port", ATSTCPOPT_CONNECT_PORT, RTGETOPT_REQ_UINT16 }
|
---|
937 | };
|
---|
938 |
|
---|
939 | /** TCP/IP transport layer. */
|
---|
940 | const ATSTRANSPORT g_TcpTransport =
|
---|
941 | {
|
---|
942 | /* .szName = */ "tcp",
|
---|
943 | /* .pszDesc = */ "TCP/IP",
|
---|
944 | /* .cOpts = */ &g_TcpOpts[0],
|
---|
945 | /* .paOpts = */ RT_ELEMENTS(g_TcpOpts),
|
---|
946 | /* .pfnUsage = */ atsTcpUsage,
|
---|
947 | /* .pfnCreate = */ atsTcpCreate,
|
---|
948 | /* .pfnDestroy = */ atsTcpDestroy,
|
---|
949 | /* .pfnOption = */ atsTcpOption,
|
---|
950 | /* .pfnStart = */ atsTcpStart,
|
---|
951 | /* .pfnStop = */ atsTcpStop,
|
---|
952 | /* .pfnWaitForConnect = */ atsTcpWaitForConnect,
|
---|
953 | /* .pfnDisconnect = */ atsTcpDisconnect,
|
---|
954 | /* .pfnPollIn = */ atsTcpPollIn,
|
---|
955 | /* .pfnPollSetAdd = */ atsTcpPollSetAdd,
|
---|
956 | /* .pfnPollSetRemove = */ atsTcpPollSetRemove,
|
---|
957 | /* .pfnRecvPkt = */ atsTcpRecvPkt,
|
---|
958 | /* .pfnSendPkt = */ atsTcpSendPkt,
|
---|
959 | /* .pfnBabble = */ atsTcpBabble,
|
---|
960 | /* .pfnNotifyHowdy = */ atsTcpNotifyHowdy,
|
---|
961 | /* .pfnNotifyBye = */ atsTcpNotifyBye,
|
---|
962 | /* .pfnNotifyReboot = */ atsTcpNotifyReboot,
|
---|
963 | /* .u32EndMarker = */ UINT32_C(0x12345678)
|
---|
964 | };
|
---|
965 |
|
---|