1 | /* $Id: VBoxAutostart-posix.cpp 69500 2017-10-28 15:14:05Z vboxsync $ */
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2 | /** @file
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3 | * VBoxAutostart - VirtualBox Autostart service.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2012-2017 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 |
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19 | /*********************************************************************************************************************************
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20 | * Header Files *
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21 | *********************************************************************************************************************************/
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22 | #include <VBox/com/com.h>
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23 | #include <VBox/com/string.h>
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24 | #include <VBox/com/Guid.h>
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25 | #include <VBox/com/array.h>
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26 | #include <VBox/com/ErrorInfo.h>
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27 | #include <VBox/com/errorprint.h>
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28 |
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29 | #include <VBox/com/NativeEventQueue.h>
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30 | #include <VBox/com/listeners.h>
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31 | #include <VBox/com/VirtualBox.h>
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32 |
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33 | #include <VBox/err.h>
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34 | #include <VBox/log.h>
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35 | #include <VBox/version.h>
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36 |
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37 | #include <package-generated.h>
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38 |
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39 | #include <iprt/asm.h>
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40 | #include <iprt/buildconfig.h>
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41 | #include <iprt/critsect.h>
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42 | #include <iprt/getopt.h>
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43 | #include <iprt/initterm.h>
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44 | #include <iprt/message.h>
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45 | #include <iprt/path.h>
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46 | #include <iprt/process.h>
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47 | #include <iprt/semaphore.h>
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48 | #include <iprt/stream.h>
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49 | #include <iprt/string.h>
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50 | #include <iprt/system.h>
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51 | #include <iprt/time.h>
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52 | #include <iprt/ctype.h>
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53 | #include <iprt/dir.h>
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54 |
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55 | #include <algorithm>
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56 | #include <list>
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57 | #include <string>
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58 | #include <signal.h>
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59 |
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60 | #include "VBoxAutostart.h"
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61 |
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62 | using namespace com;
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63 |
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64 | #if defined(RT_OS_LINUX) || defined (RT_OS_SOLARIS) || defined(RT_OS_FREEBSD) || defined(RT_OS_DARWIN)
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65 | # define VBOXAUTOSTART_DAEMONIZE
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66 | #endif
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67 |
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68 | ComPtr<IVirtualBoxClient> g_pVirtualBoxClient = NULL;
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69 | bool g_fVerbose = false;
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70 | ComPtr<IVirtualBox> g_pVirtualBox = NULL;
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71 | ComPtr<ISession> g_pSession = NULL;
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72 |
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73 | /** Logging parameters. */
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74 | static uint32_t g_cHistory = 10; /* Enable log rotation, 10 files. */
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75 | static uint32_t g_uHistoryFileTime = RT_SEC_1DAY; /* Max 1 day per file. */
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76 | static uint64_t g_uHistoryFileSize = 100 * _1M; /* Max 100MB per file. */
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77 |
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78 | /** Run in background. */
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79 | static bool g_fDaemonize = false;
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80 |
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81 | /**
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82 | * Command line arguments.
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83 | */
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84 | static const RTGETOPTDEF g_aOptions[] = {
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85 | #ifdef VBOXAUTOSTART_DAEMONIZE
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86 | { "--background", 'b', RTGETOPT_REQ_NOTHING },
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87 | #endif
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88 | /** For displayHelp(). */
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89 | { "--help", 'h', RTGETOPT_REQ_NOTHING },
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90 | { "--verbose", 'v', RTGETOPT_REQ_NOTHING },
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91 | { "--start", 's', RTGETOPT_REQ_NOTHING },
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92 | { "--stop", 'd', RTGETOPT_REQ_NOTHING },
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93 | { "--config", 'c', RTGETOPT_REQ_STRING },
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94 | { "--logfile", 'F', RTGETOPT_REQ_STRING },
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95 | { "--logrotate", 'R', RTGETOPT_REQ_UINT32 },
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96 | { "--logsize", 'S', RTGETOPT_REQ_UINT64 },
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97 | { "--loginterval", 'I', RTGETOPT_REQ_UINT32 },
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98 | { "--quiet", 'Q', RTGETOPT_REQ_NOTHING }
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99 | };
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100 |
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101 | /** Set by the signal handler. */
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102 | static volatile bool g_fCanceled = false;
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103 |
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104 |
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105 | /**
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106 | * Signal handler that sets g_fCanceled.
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107 | *
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108 | * This can be executed on any thread in the process, on Windows it may even be
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109 | * a thread dedicated to delivering this signal. Do not doing anything
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110 | * unnecessary here.
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111 | */
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112 | static void showProgressSignalHandler(int iSignal)
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113 | {
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114 | NOREF(iSignal);
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115 | ASMAtomicWriteBool(&g_fCanceled, true);
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116 | }
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117 |
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118 | /**
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119 | * Print out progress on the console.
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120 | *
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121 | * This runs the main event queue every now and then to prevent piling up
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122 | * unhandled things (which doesn't cause real problems, just makes things
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123 | * react a little slower than in the ideal case).
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124 | */
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125 | DECLHIDDEN(HRESULT) showProgress(ComPtr<IProgress> progress)
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126 | {
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127 | using namespace com;
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128 |
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129 | BOOL fCompleted = FALSE;
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130 | ULONG ulCurrentPercent = 0;
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131 | ULONG ulLastPercent = 0;
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132 |
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133 | Bstr bstrOperationDescription;
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134 |
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135 | NativeEventQueue::getMainEventQueue()->processEventQueue(0);
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136 |
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137 | ULONG cOperations = 1;
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138 | HRESULT hrc = progress->COMGETTER(OperationCount)(&cOperations);
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139 | if (FAILED(hrc))
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140 | {
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141 | RTStrmPrintf(g_pStdErr, "Progress object failure: %Rhrc\n", hrc);
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142 | RTStrmFlush(g_pStdErr);
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143 | return hrc;
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144 | }
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145 |
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146 | /*
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147 | * Note: Outputting the progress info to stderr (g_pStdErr) is intentional
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148 | * to not get intermixed with other (raw) stdout data which might get
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149 | * written in the meanwhile.
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150 | */
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151 | RTStrmPrintf(g_pStdErr, "0%%...");
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152 | RTStrmFlush(g_pStdErr);
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153 |
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154 | /* setup signal handling if cancelable */
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155 | bool fCanceledAlready = false;
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156 | BOOL fCancelable;
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157 | hrc = progress->COMGETTER(Cancelable)(&fCancelable);
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158 | if (FAILED(hrc))
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159 | fCancelable = FALSE;
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160 | if (fCancelable)
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161 | {
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162 | signal(SIGINT, showProgressSignalHandler);
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163 | #ifdef SIGBREAK
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164 | signal(SIGBREAK, showProgressSignalHandler);
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165 | #endif
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166 | }
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167 |
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168 | hrc = progress->COMGETTER(Completed(&fCompleted));
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169 | while (SUCCEEDED(hrc))
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170 | {
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171 | progress->COMGETTER(Percent(&ulCurrentPercent));
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172 |
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173 | /* did we cross a 10% mark? */
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174 | if (ulCurrentPercent / 10 > ulLastPercent / 10)
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175 | {
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176 | /* make sure to also print out missed steps */
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177 | for (ULONG curVal = (ulLastPercent / 10) * 10 + 10; curVal <= (ulCurrentPercent / 10) * 10; curVal += 10)
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178 | {
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179 | if (curVal < 100)
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180 | {
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181 | RTStrmPrintf(g_pStdErr, "%u%%...", curVal);
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182 | RTStrmFlush(g_pStdErr);
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183 | }
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184 | }
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185 | ulLastPercent = (ulCurrentPercent / 10) * 10;
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186 | }
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187 |
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188 | if (fCompleted)
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189 | break;
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190 |
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191 | /* process async cancelation */
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192 | if (g_fCanceled && !fCanceledAlready)
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193 | {
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194 | hrc = progress->Cancel();
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195 | if (SUCCEEDED(hrc))
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196 | fCanceledAlready = true;
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197 | else
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198 | g_fCanceled = false;
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199 | }
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200 |
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201 | /* make sure the loop is not too tight */
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202 | progress->WaitForCompletion(100);
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203 |
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204 | NativeEventQueue::getMainEventQueue()->processEventQueue(0);
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205 | hrc = progress->COMGETTER(Completed(&fCompleted));
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206 | }
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207 |
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208 | /* undo signal handling */
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209 | if (fCancelable)
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210 | {
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211 | signal(SIGINT, SIG_DFL);
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212 | #ifdef SIGBREAK
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213 | signal(SIGBREAK, SIG_DFL);
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214 | #endif
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215 | }
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216 |
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217 | /* complete the line. */
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218 | LONG iRc = E_FAIL;
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219 | hrc = progress->COMGETTER(ResultCode)(&iRc);
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220 | if (SUCCEEDED(hrc))
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221 | {
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222 | if (SUCCEEDED(iRc))
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223 | RTStrmPrintf(g_pStdErr, "100%%\n");
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224 | else if (g_fCanceled)
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225 | RTStrmPrintf(g_pStdErr, "CANCELED\n");
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226 | else
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227 | {
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228 | RTStrmPrintf(g_pStdErr, "\n");
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229 | RTStrmPrintf(g_pStdErr, "Progress state: %Rhrc\n", iRc);
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230 | }
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231 | hrc = iRc;
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232 | }
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233 | else
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234 | {
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235 | RTStrmPrintf(g_pStdErr, "\n");
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236 | RTStrmPrintf(g_pStdErr, "Progress object failure: %Rhrc\n", hrc);
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237 | }
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238 | RTStrmFlush(g_pStdErr);
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239 | return hrc;
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240 | }
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241 |
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242 | DECLHIDDEN(void) autostartSvcOsLogStr(const char *pszMsg, AUTOSTARTLOGTYPE enmLogType)
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243 | {
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244 | if ( enmLogType == AUTOSTARTLOGTYPE_VERBOSE
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245 | && !g_fVerbose)
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246 | return;
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247 |
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248 | LogRel(("%s", pszMsg));
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249 | }
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250 |
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251 | static void displayHeader()
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252 | {
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253 | RTStrmPrintf(g_pStdErr, VBOX_PRODUCT " Autostart " VBOX_VERSION_STRING "\n"
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254 | "(C) " VBOX_C_YEAR " " VBOX_VENDOR "\n"
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255 | "All rights reserved.\n\n");
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256 | }
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257 |
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258 | /**
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259 | * Displays the help.
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260 | *
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261 | * @param pszImage Name of program name (image).
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262 | */
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263 | static void displayHelp(const char *pszImage)
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264 | {
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265 | AssertPtrReturnVoid(pszImage);
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266 |
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267 | displayHeader();
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268 |
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269 | RTStrmPrintf(g_pStdErr,
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270 | "Usage:\n"
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271 | " %s [-v|--verbose] [-h|-?|--help]\n"
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272 | " [-F|--logfile=<file>] [-R|--logrotate=<num>] [-S|--logsize=<bytes>]\n"
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273 | " [-I|--loginterval=<seconds>]\n"
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274 | " [-c|--config=<config file>]\n", pszImage);
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275 |
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276 | RTStrmPrintf(g_pStdErr, "\n"
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277 | "Options:\n");
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278 |
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279 | for (unsigned i = 0;
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280 | i < RT_ELEMENTS(g_aOptions);
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281 | ++i)
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282 | {
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283 | std::string str(g_aOptions[i].pszLong);
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284 | if (g_aOptions[i].iShort < 1000) /* Don't show short options which are defined by an ID! */
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285 | {
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286 | str += ", -";
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287 | str += g_aOptions[i].iShort;
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288 | }
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289 | str += ":";
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290 |
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291 | const char *pcszDescr = "";
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292 |
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293 | switch (g_aOptions[i].iShort)
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294 | {
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295 | case 'h':
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296 | pcszDescr = "Print this help message and exit.";
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297 | break;
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298 |
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299 | #ifdef VBOXAUTOSTART_DAEMONIZE
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300 | case 'b':
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301 | pcszDescr = "Run in background (daemon mode).";
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302 | break;
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303 | #endif
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304 |
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305 | case 'F':
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306 | pcszDescr = "Name of file to write log to (no file).";
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307 | break;
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308 |
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309 | case 'R':
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310 | pcszDescr = "Number of log files (0 disables log rotation).";
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311 | break;
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312 |
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313 | case 'S':
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314 | pcszDescr = "Maximum size of a log file to trigger rotation (bytes).";
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315 | break;
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316 |
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317 | case 'I':
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318 | pcszDescr = "Maximum time interval to trigger log rotation (seconds).";
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319 | break;
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320 |
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321 | case 'c':
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322 | pcszDescr = "Name of the configuration file for the global overrides.";
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323 | break;
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324 | }
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325 |
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326 | RTStrmPrintf(g_pStdErr, "%-23s%s\n", str.c_str(), pcszDescr);
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327 | }
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328 |
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329 | RTStrmPrintf(g_pStdErr, "\nUse environment variable VBOXAUTOSTART_RELEASE_LOG for logging options.\n");
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330 | }
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331 |
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332 | int main(int argc, char *argv[])
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333 | {
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334 | /*
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335 | * Before we do anything, init the runtime without loading
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336 | * the support driver.
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337 | */
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338 | int rc = RTR3InitExe(argc, &argv, 0);
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339 | if (RT_FAILURE(rc))
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340 | return RTMsgInitFailure(rc);
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341 |
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342 | /*
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343 | * Parse the global options
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344 | */
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345 | int c;
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346 | const char *pszLogFile = NULL;
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347 | const char *pszConfigFile = NULL;
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348 | bool fQuiet = false;
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349 | bool fStart = false;
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350 | bool fStop = false;
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351 | RTGETOPTUNION ValueUnion;
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352 | RTGETOPTSTATE GetState;
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353 | RTGetOptInit(&GetState, argc, argv,
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354 | g_aOptions, RT_ELEMENTS(g_aOptions), 1 /* First */, 0 /*fFlags*/);
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355 | while ((c = RTGetOpt(&GetState, &ValueUnion)))
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356 | {
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357 | switch (c)
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358 | {
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359 | case 'h':
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360 | displayHelp(argv[0]);
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361 | return 0;
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362 |
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363 | case 'v':
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364 | g_fVerbose = true;
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365 | break;
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366 |
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367 | #ifdef VBOXAUTOSTART_DAEMONIZE
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368 | case 'b':
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369 | g_fDaemonize = true;
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370 | break;
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371 | #endif
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372 | case 'V':
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373 | RTPrintf("%sr%s\n", RTBldCfgVersion(), RTBldCfgRevisionStr());
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374 | return 0;
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375 |
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376 | case 'F':
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377 | pszLogFile = ValueUnion.psz;
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378 | break;
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379 |
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380 | case 'R':
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381 | g_cHistory = ValueUnion.u32;
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382 | break;
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383 |
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384 | case 'S':
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385 | g_uHistoryFileSize = ValueUnion.u64;
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386 | break;
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387 |
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388 | case 'I':
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389 | g_uHistoryFileTime = ValueUnion.u32;
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390 | break;
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391 |
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392 | case 'Q':
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393 | fQuiet = true;
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394 | break;
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395 |
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396 | case 'c':
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397 | pszConfigFile = ValueUnion.psz;
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398 | break;
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399 |
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400 | case 's':
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401 | fStart = true;
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402 | break;
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403 |
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404 | case 'd':
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405 | fStop = true;
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406 | break;
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407 |
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408 | default:
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409 | return RTGetOptPrintError(c, &ValueUnion);
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410 | }
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411 | }
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412 |
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413 | if (!fStart && !fStop)
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414 | {
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415 | displayHelp(argv[0]);
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416 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "Either --start or --stop must be present");
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417 | }
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418 | else if (fStart && fStop)
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419 | {
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420 | displayHelp(argv[0]);
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421 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "--start or --stop are mutually exclusive");
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422 | }
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423 |
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424 | if (!pszConfigFile)
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425 | {
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426 | displayHelp(argv[0]);
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427 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "--config <config file> is missing");
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428 | }
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429 |
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430 | if (!fQuiet)
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431 | displayHeader();
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432 |
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433 | PCFGAST pCfgAst = NULL;
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434 | char *pszUser = NULL;
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435 | PCFGAST pCfgAstUser = NULL;
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436 | PCFGAST pCfgAstPolicy = NULL;
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437 | bool fAllow = false;
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438 |
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439 | rc = autostartParseConfig(pszConfigFile, &pCfgAst);
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440 | if (RT_FAILURE(rc))
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441 | return RTEXITCODE_FAILURE;
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442 |
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443 | rc = RTProcQueryUsernameA(RTProcSelf(), &pszUser);
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444 | if (RT_FAILURE(rc))
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445 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to query username of the process");
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446 |
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447 | pCfgAstUser = autostartConfigAstGetByName(pCfgAst, pszUser);
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448 | pCfgAstPolicy = autostartConfigAstGetByName(pCfgAst, "default_policy");
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449 |
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450 | /* Check default policy. */
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451 | if (pCfgAstPolicy)
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452 | {
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453 | if ( pCfgAstPolicy->enmType == CFGASTNODETYPE_KEYVALUE
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454 | && ( !RTStrCmp(pCfgAstPolicy->u.KeyValue.aszValue, "allow")
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455 | || !RTStrCmp(pCfgAstPolicy->u.KeyValue.aszValue, "deny")))
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456 | {
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457 | if (!RTStrCmp(pCfgAstPolicy->u.KeyValue.aszValue, "allow"))
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458 | fAllow = true;
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459 | }
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460 | else
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461 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "'default_policy' must be either 'allow' or 'deny'");
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462 | }
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463 |
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464 | if ( pCfgAstUser
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465 | && pCfgAstUser->enmType == CFGASTNODETYPE_COMPOUND)
|
---|
466 | {
|
---|
467 | pCfgAstPolicy = autostartConfigAstGetByName(pCfgAstUser, "allow");
|
---|
468 | if (pCfgAstPolicy)
|
---|
469 | {
|
---|
470 | if ( pCfgAstPolicy->enmType == CFGASTNODETYPE_KEYVALUE
|
---|
471 | && ( !RTStrCmp(pCfgAstPolicy->u.KeyValue.aszValue, "true")
|
---|
472 | || !RTStrCmp(pCfgAstPolicy->u.KeyValue.aszValue, "false")))
|
---|
473 | {
|
---|
474 | if (!RTStrCmp(pCfgAstPolicy->u.KeyValue.aszValue, "true"))
|
---|
475 | fAllow = true;
|
---|
476 | else
|
---|
477 | fAllow = false;
|
---|
478 | }
|
---|
479 | else
|
---|
480 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "'allow' must be either 'true' or 'false'");
|
---|
481 | }
|
---|
482 | }
|
---|
483 | else if (pCfgAstUser)
|
---|
484 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "Invalid config, user is not a compound node");
|
---|
485 |
|
---|
486 | if (!fAllow)
|
---|
487 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "User is not allowed to autostart VMs");
|
---|
488 |
|
---|
489 | RTStrFree(pszUser);
|
---|
490 |
|
---|
491 | /* Don't start if the VirtualBox settings directory does not exist. */
|
---|
492 | char szUserHomeDir[RTPATH_MAX];
|
---|
493 | rc = com::GetVBoxUserHomeDirectory(szUserHomeDir, sizeof(szUserHomeDir), false /* fCreateDir */);
|
---|
494 | if (RT_FAILURE(rc))
|
---|
495 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "could not get base directory: %Rrc", rc);
|
---|
496 | else if (!RTDirExists(szUserHomeDir))
|
---|
497 | return RTEXITCODE_SUCCESS;
|
---|
498 |
|
---|
499 | /* create release logger, to stdout */
|
---|
500 | char szError[RTPATH_MAX + 128];
|
---|
501 | rc = com::VBoxLogRelCreate("Autostart", g_fDaemonize ? NULL : pszLogFile,
|
---|
502 | RTLOGFLAGS_PREFIX_THREAD | RTLOGFLAGS_PREFIX_TIME_PROG,
|
---|
503 | "all", "VBOXAUTOSTART_RELEASE_LOG",
|
---|
504 | RTLOGDEST_STDOUT, UINT32_MAX /* cMaxEntriesPerGroup */,
|
---|
505 | g_cHistory, g_uHistoryFileTime, g_uHistoryFileSize,
|
---|
506 | szError, sizeof(szError));
|
---|
507 | if (RT_FAILURE(rc))
|
---|
508 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "failed to open release log (%s, %Rrc)", szError, rc);
|
---|
509 |
|
---|
510 | #ifdef VBOXAUTOSTART_DAEMONIZE
|
---|
511 | if (g_fDaemonize)
|
---|
512 | {
|
---|
513 | /* prepare release logging */
|
---|
514 | char szLogFile[RTPATH_MAX];
|
---|
515 |
|
---|
516 | if (!pszLogFile || !*pszLogFile)
|
---|
517 | {
|
---|
518 | rc = com::GetVBoxUserHomeDirectory(szLogFile, sizeof(szLogFile));
|
---|
519 | if (RT_FAILURE(rc))
|
---|
520 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "could not get base directory for logging: %Rrc", rc);
|
---|
521 | rc = RTPathAppend(szLogFile, sizeof(szLogFile), "vboxautostart.log");
|
---|
522 | if (RT_FAILURE(rc))
|
---|
523 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "could not construct logging path: %Rrc", rc);
|
---|
524 | pszLogFile = szLogFile;
|
---|
525 | }
|
---|
526 |
|
---|
527 | rc = RTProcDaemonizeUsingFork(false /* fNoChDir */, false /* fNoClose */, NULL);
|
---|
528 | if (RT_FAILURE(rc))
|
---|
529 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "failed to daemonize, rc=%Rrc. exiting.", rc);
|
---|
530 | /* create release logger, to file */
|
---|
531 | rc = com::VBoxLogRelCreate("Autostart", pszLogFile,
|
---|
532 | RTLOGFLAGS_PREFIX_THREAD | RTLOGFLAGS_PREFIX_TIME_PROG,
|
---|
533 | "all", "VBOXAUTOSTART_RELEASE_LOG",
|
---|
534 | RTLOGDEST_FILE, UINT32_MAX /* cMaxEntriesPerGroup */,
|
---|
535 | g_cHistory, g_uHistoryFileTime, g_uHistoryFileSize,
|
---|
536 | szError, sizeof(szError));
|
---|
537 | if (RT_FAILURE(rc))
|
---|
538 | return RTMsgErrorExit(RTEXITCODE_FAILURE, "failed to open release log (%s, %Rrc)", szError, rc);
|
---|
539 | }
|
---|
540 | #endif
|
---|
541 |
|
---|
542 | /* Set up COM */
|
---|
543 | rc = autostartSetup();
|
---|
544 | if (RT_FAILURE(rc))
|
---|
545 | return RTEXITCODE_FAILURE;
|
---|
546 |
|
---|
547 | RTEXITCODE rcExit;
|
---|
548 | if (fStart)
|
---|
549 | rcExit = autostartStartMain(pCfgAstUser);
|
---|
550 | else
|
---|
551 | {
|
---|
552 | Assert(fStop);
|
---|
553 | rcExit = autostartStopMain(pCfgAstUser);
|
---|
554 | }
|
---|
555 |
|
---|
556 | autostartConfigAstDestroy(pCfgAst);
|
---|
557 | NativeEventQueue::getMainEventQueue()->processEventQueue(0);
|
---|
558 |
|
---|
559 | autostartShutdown();
|
---|
560 | return rcExit;
|
---|
561 | }
|
---|
562 |
|
---|