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1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Main functions to start the server |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <e32base.h> |
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20 #include <barsc.h> // RResourceFile |
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21 #include <barsread.h> // TResourceReader |
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22 |
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23 #include "MediatorServer.h" |
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24 #include "MediatorCommon.h" |
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25 #include "MediatorServerSession.h" |
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26 #include "MediatorServerEventHandler.h" |
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27 #include "MediatorServerCommandHandler.h" |
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28 #include "MediatorServerObjectHandler.h" |
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29 #include "MediatorServerPluginHandler.h" |
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30 |
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31 #include <allowedsids.rsg> |
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32 #include "MediatorDebug.h" |
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33 #include "Debug.h" |
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34 |
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35 // CONSTANTS |
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36 // Resource directory |
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37 _LIT(KResourceEventDir, "z:\\private\\10207449\\events\\"); |
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38 |
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39 // Resource file containing exceptionally handled SIDs |
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40 _LIT(KAllowedSidsFile, "z:\\private\\10207449\\allowedsids.rsc"); |
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41 |
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42 // Domain resource index ( = 1) |
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43 const TInt KEventResourceIndex = 1; |
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44 |
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45 // Version number count within TVersion structure |
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46 const TInt KVersionNumberCount = 3; |
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47 |
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48 // NAMESPACE |
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49 using namespace MediatorService; |
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50 |
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51 // ============================ MEMBER FUNCTIONS =============================== |
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52 |
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53 // ----------------------------------------------------------------------------- |
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54 // CMediatorServer::CMediatorServer |
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55 // ----------------------------------------------------------------------------- |
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56 // |
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57 CMediatorServer::CMediatorServer() |
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58 : CPolicyServer( CActive::EPriorityHigh, KMediatorServerPolicy ) |
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59 { |
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60 LOG(_L("[Mediator Server]\t CMediatorServer::CMediatorServer")); |
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61 } |
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62 |
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63 // ----------------------------------------------------------------------------- |
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64 // CMediatorServer::ConstructL |
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65 // ----------------------------------------------------------------------------- |
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66 // |
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67 void CMediatorServer::ConstructL() |
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68 { |
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69 LOG(_L("[Mediator Server]\t CMediatorServer::ConstructL")); |
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70 StartL( KMediatorServerName ); |
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71 |
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72 // Create object, event and command handlers |
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73 iObjectHandler = CMediatorServerObjectHandler::NewL(); |
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74 iEventHandler = CMediatorServerEventHandler::NewL( *iObjectHandler ); |
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75 iCommandHandler = CMediatorServerCommandHandler::NewL( *iObjectHandler ); |
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76 iPluginHandler = CMediatorServerPluginHandler::NewL(); |
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77 |
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78 RFs fsSession; |
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79 User::LeaveIfError( fsSession.Connect() ); |
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80 CleanupClosePushL( fsSession ); |
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81 |
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82 // Do static event registrations |
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83 ProcessResourceEventsL( fsSession ); |
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84 |
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85 // read SIDs |
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86 ReadAllowedSidsFileL( fsSession ); |
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87 |
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88 CleanupStack::PopAndDestroy( &fsSession ); |
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89 |
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90 RMediatorDebug::Initialize( this ); |
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91 |
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92 LOG(_L("[Mediator Server]\t CMediatorServer::ConstructL end")); |
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93 } |
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94 |
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95 // ----------------------------------------------------------------------------- |
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96 // CMediatorServer::NewLC |
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97 // ----------------------------------------------------------------------------- |
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98 // |
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99 CMediatorServer* CMediatorServer::NewLC() |
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100 { |
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101 LOG(_L("[Mediator Server]\t CMediatorServer::NewLC")); |
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102 CMediatorServer *self = new (ELeave) CMediatorServer(); |
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103 CleanupStack::PushL( self ); |
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104 self->ConstructL(); |
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105 return self; |
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106 } |
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107 |
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108 // ----------------------------------------------------------------------------- |
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109 // CMediatorServer::~CMediatorServer |
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110 // ----------------------------------------------------------------------------- |
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111 // |
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112 CMediatorServer::~CMediatorServer() |
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113 { |
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114 RMediatorDebug::Uninitialize(); |
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115 |
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116 LOG(_L("[Mediator Server]\t CMediatorServer::~CMediatorServer")); |
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117 delete iEventHandler; |
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118 delete iCommandHandler; |
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119 delete iObjectHandler; |
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120 delete iPluginHandler; |
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121 iAllowedSids.Close(); |
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122 } |
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123 |
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124 |
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125 // ----------------------------------------------------------------------------- |
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126 // CMediatorServer::NewSessionL |
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127 // Creates a new session to the server if version information is correct. |
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128 // (other items were commented in a header). |
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129 // ----------------------------------------------------------------------------- |
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130 // |
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131 CSession2 *CMediatorServer::NewSessionL( const TVersion &aVersion, |
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132 const RMessage2 &/*aMessage*/) const |
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133 { |
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134 LOG(_L("[Mediator Server]\t CMediatorServer::NewSessionL")); |
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135 // check we're the right version |
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136 TVersion version( KMediatorServerMajor, |
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137 KMediatorServerMinor, |
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138 KMediatorServerBuild); |
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139 if( !User::QueryVersionSupported( version, aVersion ) ) |
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140 { |
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141 ERROR_LOG(_L("[Mediator] CMediatorServer::NewSessionL: Version conflict!\n") ); |
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142 ERROR_TRACE(Print(_L("[Mediator] Current version:%d.%d.%d\n"), version.iMajor, version.iMinor, version.iBuild ) ); |
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143 ERROR_TRACE(Print(_L("[Mediator] Connected version:%d.%d.%d\n"), aVersion.iMajor, aVersion.iMinor, aVersion.iBuild ) ); |
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144 User::Leave( KErrNotSupported ); |
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145 } |
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146 |
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147 // make new session |
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148 return CMediatorServerSession::NewL(); |
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149 } |
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150 |
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151 // ----------------------------------------------------------------------------- |
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152 // CMediatorServer::EventHandler |
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153 // Returns a reference to event handler |
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154 // ----------------------------------------------------------------------------- |
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155 // |
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156 CMediatorServerEventHandler& CMediatorServer::EventHandler() |
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157 { |
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158 __ASSERT_DEBUG( iEventHandler, PanicServer( EMediatorServerNoEventHandler )); |
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159 return *iEventHandler; |
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160 } |
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161 |
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162 // ----------------------------------------------------------------------------- |
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163 // CMediatorServer::EventHandler |
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164 // Returns a reference to command handler |
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165 // ----------------------------------------------------------------------------- |
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166 // |
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167 CMediatorServerCommandHandler& CMediatorServer::CommandHandler() |
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168 { |
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169 __ASSERT_DEBUG( iCommandHandler, PanicServer( EMediatorServerNoCommandHandler )); |
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170 return *iCommandHandler; |
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171 } |
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172 |
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173 // ----------------------------------------------------------------------------- |
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174 // CMediatorServer::ObjectHandler |
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175 // Returns a reference to object handler |
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176 // ----------------------------------------------------------------------------- |
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177 // |
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178 CMediatorServerObjectHandler& CMediatorServer::ObjectHandler() |
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179 { |
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180 __ASSERT_DEBUG( iObjectHandler, PanicServer( EMediatorServerNoObjectHandler )); |
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181 return *iObjectHandler; |
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182 } |
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183 |
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184 // ----------------------------------------------------------------------------- |
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185 // CMediatorServer::PluginHandler |
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186 // Returns a reference to plugin handler |
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187 // ----------------------------------------------------------------------------- |
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188 // |
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189 CMediatorServerPluginHandler& CMediatorServer::PluginHandler() |
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190 { |
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191 __ASSERT_DEBUG( iPluginHandler, PanicServer( EMediatorServerNoPluginHandler )); |
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192 return *iPluginHandler; |
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193 } |
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194 |
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195 // ----------------------------------------------------------------------------- |
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196 // CMediatorServer::CustomSecurityCheckL |
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197 // Performs a custom security check. |
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198 // ----------------------------------------------------------------------------- |
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199 // |
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200 |
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201 CPolicyServer::TCustomResult CMediatorServer::CustomSecurityCheckL( const RMessage2& aMsg, |
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202 TInt& /*aAction*/, |
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203 TSecurityInfo& /*aMissing*/ ) |
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204 { |
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205 LOG(_L("[Mediator Server]\t CMediatorServer::CustomSecurityCheckL")); |
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206 // firstly check if this SwEvent capability, which is OK |
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207 if ( aMsg.HasCapability( ECapabilitySwEvent ) ) |
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208 { |
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209 return EPass; |
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210 } |
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211 |
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212 // secondly check if special treatment for this SID is allowed |
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213 if ( AllowCapabilityException( static_cast<TUid>( aMsg.SecureId() ) ) ) |
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214 { |
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215 return EPass; |
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216 } |
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217 |
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218 ERROR_TRACE(Print(_L("[Mediator] CMediatorServer::CustomSecurityCheckL: security check fail for client 0x%08X\n"), aMsg.SecureId().iId)); |
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219 |
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220 // client has no right to send this message |
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221 return EFail; |
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222 } |
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223 |
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224 // ----------------------------------------------------------------------------- |
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225 // CMediatorServer::ProcessResourceEventsL |
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226 // Does static event resource registration processing |
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227 // ----------------------------------------------------------------------------- |
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228 // |
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229 void CMediatorServer::ProcessResourceEventsL( RFs& aFsSession ) |
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230 { |
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231 LOG(_L("[Mediator Server]\t CMediatorServer::ProcessResourceEventsL")); |
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232 |
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233 // Gather all files from registration directory |
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234 CDir* resourceList; |
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235 |
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236 TInt err = aFsSession.GetDir( KResourceEventDir, |
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237 KEntryAttNormal, |
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238 ESortByName, |
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239 resourceList ); |
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240 |
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241 // If events-directory does not exist, it means that there are no static events registered |
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242 if ( err != KErrNone && err != KErrPathNotFound ) |
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243 { |
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244 ERROR_TRACE(Print(_L("[Mediator] CMediatorServer::ProcessResourceEventsL: err=%d\n"), err ) ); |
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245 User::Leave( err ); |
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246 } |
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247 |
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248 if ( err != KErrPathNotFound ) |
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249 { |
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250 CleanupStack::PushL( resourceList ); |
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251 TRACE(Print(_L("[Mediator Server]\t ProcessResourceEventsL file count %d\n"), resourceList->Count() )); |
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252 |
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253 // Loop through the resource files and process the resources |
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254 for ( TInt index = 0; index < resourceList->Count(); index++ ) |
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255 { |
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256 TEntry resourceFile = (*resourceList)[ index ]; |
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257 TBufC<KMaxFileName> fileName = resourceFile.iName; |
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258 // TRAP error, but continue |
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259 TRAPD( error, ProcessResourceFileL( aFsSession, fileName ) ); |
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260 |
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261 if ( error != KErrNone ) |
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262 { |
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263 ERROR_TRACE(Print(_L("[Mediator] CMediatorServer::ProcessResourceEventsL: error=%d\n"), error ) ); |
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264 } |
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265 |
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266 TRACE(Print(_L("[Mediator Server]\t ProcessResourceEventsL file %d process status %d\n"), index, error )); |
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267 } |
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268 CleanupStack::PopAndDestroy( resourceList ); |
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269 } |
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270 } |
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271 |
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272 // ----------------------------------------------------------------------------- |
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273 // CMediatorServer::ProcessResourceFileL |
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274 // Processes one resource file |
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275 // ----------------------------------------------------------------------------- |
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276 // |
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277 void CMediatorServer::ProcessResourceFileL( RFs& aFsSession, const TDesC& aFileName ) |
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278 { |
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279 LOG(_L("[Mediator Server]\t CMediatorServer::ProcessResourceFileL")); |
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280 |
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281 // Parse full file name |
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282 TParse parse; |
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283 parse.Set( aFileName, &KResourceEventDir, NULL ); |
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284 TFileName fullName = parse.FullName(); |
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285 |
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286 // Get this thread's secure id |
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287 RThread thread = RThread(); |
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288 TSecureId secureId = thread.SecureId(); |
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289 |
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290 // Open resource file |
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291 RResourceFile resourceFile; |
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292 resourceFile.OpenL( aFsSession, fullName ); |
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293 CleanupClosePushL( resourceFile ); |
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294 |
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295 // Read resource information |
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296 HBufC8* domainResource = resourceFile.AllocReadLC( KEventResourceIndex ); |
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297 TResourceReader reader; |
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298 reader.SetBuffer( domainResource ); |
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299 |
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300 // Read domain from resource |
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301 TUid domainUid = TUid::Uid( reader.ReadInt32() ); |
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302 // Process categories |
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303 TInt categoryCount = reader.ReadInt16(); |
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304 for ( TInt index = 0; index < categoryCount; index++ ) |
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305 { |
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306 TUid categoryUid = TUid::Uid( reader.ReadInt32() ); |
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307 // Process events within category |
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308 TInt eventCount = reader.ReadInt16(); |
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309 REventList eventList; |
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310 for ( TInt index2 = 0; index2 < eventCount; index2++ ) |
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311 { |
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312 MediatorService::TEvent newEvent = ReadEvent( reader ); |
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313 eventList.AppendL( newEvent ); |
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314 } |
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315 // Register events to event handler, if there's something to register |
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316 if ( eventList.Count() > 0 ) |
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317 { |
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318 TMediatorCategory newCategory; |
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319 newCategory.iDomain = domainUid; |
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320 newCategory.iCategory = categoryUid; |
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321 // TRAP error, but continue anyway |
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322 TRAPD( error, |
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323 EventHandler().RegisterEventListL( newCategory, |
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324 eventList, |
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325 secureId ) ); |
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326 |
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327 if ( error != KErrNone ) |
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328 { |
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329 ERROR_TRACE(Print(_L("[Mediator] CMediatorServer::ProcessResourceFileL: error=%d\n"), error ) ); |
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330 } |
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331 |
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332 |
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333 TRACE(Print(_L("[Mediator Server]\t ProcessResourceFileL events registered with status %d\n"), error )); |
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334 } |
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335 eventList.Close(); |
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336 } |
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337 |
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338 CleanupStack::PopAndDestroy( domainResource); |
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339 CleanupStack::PopAndDestroy( &resourceFile ); |
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340 } |
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341 |
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342 |
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343 // ----------------------------------------------------------------------------- |
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344 // CMediatorServer::ReadEvent |
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345 // Reads one event from resource |
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346 // ----------------------------------------------------------------------------- |
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347 // |
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348 MediatorService::TEvent CMediatorServer::ReadEvent( TResourceReader& aReader ) |
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349 { |
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350 MediatorService::TEvent newEvent; |
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351 |
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352 // Read Event id |
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353 newEvent.iEventId = aReader.ReadInt16(); |
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354 |
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355 TRACE(Print(_L("[Mediator Server]\t ProcessResourceFileL new event id %d\n"), newEvent.iEventId )); |
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356 |
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357 // Read required capabilities |
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358 TCapabilitySet capabilitySet; |
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359 capabilitySet.SetEmpty(); |
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360 TInt capabilityCount = aReader.ReadInt16(); |
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361 for ( TInt index = 0; index < capabilityCount; index++ ) |
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362 { |
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363 TCapability newCapability = (TCapability) aReader.ReadInt16(); |
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364 capabilitySet.AddCapability( newCapability ); |
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365 } |
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366 newEvent.iCaps = capabilitySet; |
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367 |
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368 // Read version information |
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369 TInt versionCount = aReader.ReadInt16(); |
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370 if ( versionCount == KVersionNumberCount ) // Should have 3 values in version structure |
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371 { |
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372 TInt major = aReader.ReadInt16(); |
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373 TInt minor = aReader.ReadInt16(); |
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374 TInt build = aReader.ReadInt16(); |
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375 newEvent.iVersion = TVersion( major, minor, build ); |
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376 } |
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377 else |
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378 { |
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379 ERROR_TRACE(Print(_L("[Mediator] CMediatorServer::ReadEvent: Event %d has invalid data, versionCount=%d\n"), newEvent.iEventId, versionCount ) ); |
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380 // Something wrong with the resource --> use zeros as version info |
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381 newEvent.iVersion = TVersion( 0, 0, 0 ); |
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382 } |
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383 // Return event |
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384 return newEvent; |
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385 } |
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386 |
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387 // ----------------------------------------------------------------------------- |
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388 // CMediatorServer::ReadAllowedSidsFileL |
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389 // Read resource file containing exeptionally handled SIDs |
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390 // ----------------------------------------------------------------------------- |
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391 // |
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392 void CMediatorServer::ReadAllowedSidsFileL( RFs& aFsSession ) |
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393 { |
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394 LOG(_L("[Mediator Server]\t CMediatorServer::ReadAllowedSidsFileL")); |
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395 |
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396 // read settings from resource files |
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397 TFileName resourceFileName (KAllowedSidsFile); |
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398 |
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399 RResourceFile resourceFile; |
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400 resourceFile.OpenL(aFsSession, resourceFileName); |
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401 |
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402 CleanupClosePushL(resourceFile); |
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403 |
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404 // Read the SID structure |
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405 HBufC8* res = resourceFile.AllocReadLC(SID_INFO); |
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406 TResourceReader theReader; |
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407 theReader.SetBuffer(res); |
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408 |
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409 TInt sidCount = theReader.ReadUint16(); |
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410 |
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411 // read SIDs |
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412 TUid sid; |
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413 |
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414 for (TInt i = 0; i < sidCount; i++) |
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415 { |
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416 sid.iUid = theReader.ReadUint32(); |
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417 TRACE(Print(_L("[Mediator Server]\t Allowed SID: 0x%08X\n"), sid.iUid)); |
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418 User::LeaveIfError( iAllowedSids.Append( sid ) ); |
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419 } |
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420 |
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421 CleanupStack::PopAndDestroy( res ); |
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422 CleanupStack::PopAndDestroy( &resourceFile ); |
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423 } |
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424 |
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425 // ----------------------------------------------------------------------------- |
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426 // CMediatorServer::AllowCapabilityException |
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427 // Returns whether capability requirements can be ignored for the specified client. |
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428 // ----------------------------------------------------------------------------- |
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429 // |
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430 TBool CMediatorServer::AllowCapabilityException( const TUid& aSid ) |
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431 { |
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432 return ( ( iAllowedSids.Find ( aSid ) != KErrNotFound ) ? ETrue : EFalse ); |
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433 } |
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434 |
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435 |
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436 // ----------------------------------------------------------------------------- |
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437 // PanicServer |
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438 // Server panic handler |
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439 // Panic our own thread |
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440 // ----------------------------------------------------------------------------- |
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441 // |
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442 void CMediatorServer::PanicServer(TInt aPanic) |
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443 { |
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444 ERROR_TRACE(Print(_L("[Mediator] CMediatorServer::PanicServer: Reason = %d\n"), aPanic)); |
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445 User::Panic( KMediatorServerPanic, aPanic ); |
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446 } |
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447 |
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448 // ----------------------------------------------------------------------------- |
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449 // PanicClient |
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450 // Client panic handler |
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451 // RMessage2::Panic() also completes the message. This is: |
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452 // (a) important for efficient cleanup within the kernel |
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453 // (b) a problem if the message is completed a second time |
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454 // (other items were commented in a header). |
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455 // ----------------------------------------------------------------------------- |
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456 // |
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457 void CMediatorServer::PanicClient( const RMessage2& aMessage, TInt aPanic ) |
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458 { |
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459 ERROR_TRACE(Print(_L("[Mediator] CMediatorServer::PanicClient: Reason = %d\n"), aPanic)); |
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460 aMessage.Panic( KMediatorServerPanic, aPanic ); |
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461 } |
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462 |
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463 // End of File |