1 | /* $Id: USBProxyBackendOs2.cpp 60089 2016-03-18 10:51:02Z vboxsync $ */
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2 | /** @file
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3 | * VirtualBox USB Proxy Service, OS/2 Specialization.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2005-2012 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 | #define INCL_BASE
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23 | #define INCL_ERRORS
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24 | #include "USBProxyBackend.h"
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25 | #include "Logging.h"
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26 |
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27 | #include <VBox/usb.h>
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28 | #include <VBox/err.h>
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29 |
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30 | #include <iprt/string.h>
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31 | #include <iprt/alloc.h>
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32 | #include <iprt/assert.h>
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33 | #include <iprt/file.h>
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34 | #include <iprt/err.h>
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35 |
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36 |
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37 | /**
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38 | * Initialize data members.
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39 | */
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40 | USBProxyBackendOs2::USBProxyBackendOs2(USBProxyService *aUsbProxyService, const com::Utf8Str &strId)
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41 | : USBProxyBackend(aUsbProxyService, strId), mhev(NULLHANDLE), mhmod(NULLHANDLE),
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42 | mpfnUsbRegisterChangeNotification(NULL), mpfnUsbDeregisterNotification(NULL),
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43 | mpfnUsbQueryNumberDevices(NULL), mpfnUsbQueryDeviceReport(NULL)
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44 | {
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45 | LogFlowThisFunc(("aUsbProxyService=%p\n", aUsbProxyService));
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46 |
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47 | /*
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48 | * Try initialize the usbcalls stuff.
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49 | */
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50 | int rc = DosCreateEventSem(NULL, &mhev, 0, FALSE);
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51 | rc = RTErrConvertFromOS2(rc);
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52 | if (RT_SUCCESS(rc))
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53 | {
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54 | rc = DosLoadModule(NULL, 0, (PCSZ)"usbcalls", &mhmod);
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55 | rc = RTErrConvertFromOS2(rc);
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56 | if (RT_SUCCESS(rc))
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57 | {
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58 | if ( (rc = DosQueryProcAddr(mhmod, 0, (PCSZ)"UsbQueryNumberDevices", (PPFN)&mpfnUsbQueryNumberDevices)) == NO_ERROR
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59 | && (rc = DosQueryProcAddr(mhmod, 0, (PCSZ)"UsbQueryDeviceReport", (PPFN)&mpfnUsbQueryDeviceReport)) == NO_ERROR
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60 | && (rc = DosQueryProcAddr(mhmod, 0, (PCSZ)"UsbRegisterChangeNotification", (PPFN)&mpfnUsbRegisterChangeNotification)) == NO_ERROR
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61 | && (rc = DosQueryProcAddr(mhmod, 0, (PCSZ)"UsbDeregisterNotification", (PPFN)&mpfnUsbDeregisterNotification)) == NO_ERROR
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62 | )
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63 | {
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64 | rc = mpfnUsbRegisterChangeNotification(&mNotifyId, mhev, mhev);
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65 | if (!rc)
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66 | {
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67 | /*
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68 | * Start the poller thread.
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69 | */
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70 | rc = start();
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71 | if (RT_SUCCESS(rc))
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72 | {
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73 | LogFlowThisFunc(("returns successfully - mNotifyId=%d\n", mNotifyId));
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74 | mLastError = VINF_SUCCESS;
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75 | return;
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76 | }
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77 | }
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78 |
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79 | LogRel(("USBProxyServiceOs2: failed to register change notification, rc=%d\n", rc));
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80 | }
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81 | else
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82 | LogRel(("USBProxyServiceOs2: failed to load usbcalls\n"));
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83 |
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84 | DosFreeModule(mhmod);
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85 | }
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86 | else
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87 | LogRel(("USBProxyServiceOs2: failed to load usbcalls, rc=%d\n", rc));
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88 | mhmod = NULLHANDLE;
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89 | }
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90 | else
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91 | mhev = NULLHANDLE;
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92 |
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93 | mLastError = rc;
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94 | LogFlowThisFunc(("returns failure!!! (rc=%Rrc)\n", rc));
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95 | }
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96 |
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97 |
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98 | /**
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99 | * Stop all service threads and free the device chain.
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100 | */
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101 | USBProxyServiceOs2::~USBProxyServiceOs2()
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102 | {
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103 | LogFlowThisFunc(("\n"));
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104 |
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105 | /*
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106 | * Stop the service.
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107 | */
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108 | if (isActive())
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109 | stop();
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110 |
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111 | /*
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112 | * Free resources.
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113 | */
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114 | if (mhmod)
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115 | {
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116 | if (mpfnUsbDeregisterNotification)
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117 | mpfnUsbDeregisterNotification(mNotifyId);
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118 |
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119 | mpfnUsbRegisterChangeNotification = NULL;
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120 | mpfnUsbDeregisterNotification = NULL;
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121 | mpfnUsbQueryNumberDevices = NULL;
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122 | mpfnUsbQueryDeviceReport = NULL;
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123 |
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124 | DosFreeModule(mhmod);
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125 | mhmod = NULLHANDLE;
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126 | }
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127 | }
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128 |
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129 |
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130 | int USBProxyServiceOs2::captureDevice(HostUSBDevice *aDevice)
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131 | {
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132 | AssertReturn(aDevice, VERR_GENERAL_FAILURE);
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133 | AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
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134 |
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135 | AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
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136 | LogFlowThisFunc(("aDevice=%s\n", aDevice->getName().c_str()));
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137 |
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138 | /*
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139 | * Don't think we need to do anything when the device is held... fake it.
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140 | */
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141 | Assert(aDevice->isStatePending());
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142 | devLock.release();
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143 | interruptWait();
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144 |
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145 | return VINF_SUCCESS;
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146 | }
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147 |
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148 |
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149 | int USBProxyServiceOs2::releaseDevice(HostUSBDevice *aDevice)
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150 | {
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151 | AssertReturn(aDevice, VERR_GENERAL_FAILURE);
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152 | AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
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153 |
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154 | AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
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155 | LogFlowThisFunc(("aDevice=%s\n", aDevice->getName().c_str()));
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156 |
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157 | /*
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158 | * We're not really holding it atm., just fake it.
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159 | */
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160 | Assert(aDevice->isStatePending());
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161 | devLock.release();
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162 | interruptWait();
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163 |
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164 | return VINF_SUCCESS;
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165 | }
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166 |
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167 |
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168 | bool USBProxyServiceOs2::updateDeviceState(HostUSBDevice *aDevice, PUSBDEVICE aUSBDevice, bool *aRunFilters,
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169 | SessionMachine **aIgnoreMachine)
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170 | {
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171 | AssertReturn(aDevice, false);
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172 | AssertReturn(!aDevice->isWriteLockOnCurrentThread(), false);
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173 | return updateDeviceStateFake(aDevice, aUSBDevice, aRunFilters, aIgnoreMachine);
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174 | }
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175 |
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176 |
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177 |
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178 | int USBProxyServiceOs2::wait(RTMSINTERVAL aMillies)
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179 | {
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180 | int rc = DosWaitEventSem(mhev, aMillies);
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181 | return RTErrConvertFromOS2(rc);
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182 | }
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183 |
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184 |
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185 | int USBProxyServiceOs2::interruptWait(void)
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186 | {
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187 | int rc = DosPostEventSem(mhev);
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188 | return rc == NO_ERROR || rc == ERROR_ALREADY_POSTED
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189 | ? VINF_SUCCESS
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190 | : RTErrConvertFromOS2(rc);
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191 | }
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192 |
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193 | #include <stdio.h>
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194 |
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195 | PUSBDEVICE USBProxyServiceOs2::getDevices(void)
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196 | {
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197 | /*
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198 | * Count the devices.
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199 | */
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200 | ULONG cDevices = 0;
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201 | int rc = mpfnUsbQueryNumberDevices((PULONG)&cDevices); /* Thanks to com/xpcom, PULONG and ULONG * aren't the same. */
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202 | if (rc)
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203 | return NULL;
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204 |
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205 | /*
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206 | * Retrieve information about each device.
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207 | */
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208 | PUSBDEVICE pFirst = NULL;
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209 | PUSBDEVICE *ppNext = &pFirst;
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210 | for (ULONG i = 0; i < cDevices; i++)
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211 | {
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212 | /*
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213 | * Query the device and config descriptors.
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214 | */
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215 | uint8_t abBuf[1024];
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216 | ULONG cb = sizeof(abBuf);
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217 | rc = mpfnUsbQueryDeviceReport(i + 1, (PULONG)&cb, &abBuf[0]); /* see above (PULONG) */
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218 | if (rc)
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219 | continue;
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220 | PUSBDEVICEDESC pDevDesc = (PUSBDEVICEDESC)&abBuf[0];
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221 | if ( cb < sizeof(*pDevDesc)
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222 | || pDevDesc->bDescriptorType != USB_DT_DEVICE
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223 | || pDevDesc->bLength < sizeof(*pDevDesc)
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224 | || pDevDesc->bLength > sizeof(*pDevDesc) * 2)
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225 | continue;
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226 | PUSBCONFIGDESC pCfgDesc = (PUSBCONFIGDESC)&abBuf[pDevDesc->bLength];
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227 | if ( pCfgDesc->bDescriptorType != USB_DT_CONFIG
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228 | || pCfgDesc->bLength >= sizeof(*pCfgDesc))
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229 | pCfgDesc = NULL;
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230 |
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231 | /*
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232 | * Skip it if it's some kind of hub.
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233 | */
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234 | if (pDevDesc->bDeviceClass == USB_HUB_CLASSCODE)
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235 | continue;
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236 |
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237 | /*
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238 | * Allocate a new device node and initialize it with the basic stuff.
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239 | */
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240 | PUSBDEVICE pCur = (PUSBDEVICE)RTMemAlloc(sizeof(*pCur));
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241 | pCur->bcdUSB = pDevDesc->bcdUSB;
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242 | pCur->bDeviceClass = pDevDesc->bDeviceClass;
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243 | pCur->bDeviceSubClass = pDevDesc->bDeviceSubClass;
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244 | pCur->bDeviceProtocol = pDevDesc->bDeviceProtocol;
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245 | pCur->idVendor = pDevDesc->idVendor;
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246 | pCur->idProduct = pDevDesc->idProduct;
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247 | pCur->bcdDevice = pDevDesc->bcdDevice;
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248 | pCur->pszManufacturer = RTStrDup("");
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249 | pCur->pszProduct = RTStrDup("");
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250 | pCur->pszSerialNumber = NULL;
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251 | pCur->u64SerialHash = 0;
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252 | //pCur->bNumConfigurations = pDevDesc->bNumConfigurations;
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253 | pCur->bNumConfigurations = 0;
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254 | pCur->paConfigurations = NULL;
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255 | pCur->enmState = USBDEVICESTATE_USED_BY_HOST_CAPTURABLE;
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256 | pCur->enmSpeed = USBDEVICESPEED_UNKNOWN;
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257 | pCur->pszAddress = NULL;
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258 | RTStrAPrintf((char **)&pCur->pszAddress, "p=0x%04RX16;v=0x%04RX16;r=0x%04RX16;e=0x%08RX32",
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259 | pDevDesc->idProduct, pDevDesc->idVendor, pDevDesc->bcdDevice, i);
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260 |
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261 | pCur->bBus = 0;
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262 | pCur->bLevel = 0;
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263 | pCur->bDevNum = 0;
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264 | pCur->bDevNumParent = 0;
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265 | pCur->bPort = 0;
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266 | pCur->bNumDevices = 0;
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267 | pCur->bMaxChildren = 0;
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268 |
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269 | /* link it */
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270 | pCur->pNext = NULL;
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271 | pCur->pPrev = *ppNext;
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272 | *ppNext = pCur;
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273 | ppNext = &pCur->pNext;
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274 | }
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275 |
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276 | return pFirst;
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277 | }
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278 |
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