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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // ssmpolicysrv.cpp |
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15 // |
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16 // |
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17 |
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18 #include <e32debug.h> |
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19 #include <e32math.h> |
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20 #include <f32file.h> |
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21 #include <s32file.h> |
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22 #include <ssm/ssmcommandlist.h> |
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23 |
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24 #include "ssmswppolicysrv.h" |
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25 #include "ssmswppolicysess.h" |
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26 #include "ssmswppolicyconst.h" |
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27 #include "ssmdebug.h" |
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28 #include "ssmserverpanic.h" |
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29 |
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30 // ------------------- SsmSwpPolicy Server Security Setup ---------------------- |
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31 |
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32 const TInt KSsmServerSid = 0x2000D75B; //UID3 of sysstatemgr.exe |
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33 |
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34 const TUint KRangeCount = 3; |
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35 const TInt KRanges[KRangeCount] = |
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36 { |
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37 0, |
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38 KFirstUsedOpCode, //range: 1...(EEndOfSsmSwpPolicySrvOpCodes-1) inclusive |
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39 EEndOfSsmSwpPolicySrvOpCodes |
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40 }; |
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41 |
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42 /** |
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43 Maps to index 0 in the array KPolicyElements |
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44 */ |
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45 const TInt KSsmServerSidCheck = 0; |
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46 |
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47 /** |
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48 Specifies the appropriate action for each range in KRanges. |
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49 The nth element of KElementsIndex specifies the appropriate action for the nth range in KRanges. |
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50 */ |
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51 const TUint8 KElementsIndex[KRangeCount] = |
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52 { |
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53 CPolicyServer::ENotSupported, |
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54 KSsmServerSidCheck, |
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55 CPolicyServer::ENotSupported, |
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56 }; |
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57 |
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58 /** |
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59 Array containing the different security checks performed by this server |
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60 */ |
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61 const CPolicyServer::TPolicyElement KPolicyElements[] = |
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62 { |
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63 {_INIT_SECURITY_POLICY_S0(KSsmServerSid), CPolicyServer::EFailClient} //lint !e778 suppress Constant expression evaluates to 0 in operation '+' |
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64 }; |
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65 |
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66 /** |
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67 Setup a security policy which requires all caps to be used by the SsmServer for all requests |
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68 including creating a connection. The caller's SID is matched against SsmServer's |
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69 SID in each ServiceL call |
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70 */ |
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71 const CPolicyServer::TPolicy KSsmSwpPolicyServerPolicy = |
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72 { |
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73 KSsmServerSidCheck, // map connection attempts as well to index [0] in KPolicyElements[] |
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74 KRangeCount, |
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75 KRanges, |
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76 KElementsIndex, |
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77 KPolicyElements |
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78 }; |
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79 |
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80 /** |
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81 CSsmSwpPolicyStepCompletion is an active object used for executing all the steps involved in |
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82 the swp transition. Initial state for the active object is set as EIdle. |
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83 */ |
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84 CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion* CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::NewL(MSsmSwpPolicy* aSwpPolicy, CSsmSwpPolicyServer& aServer, const TInt aSessionIndex) |
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85 { |
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86 CSsmSwpPolicyStepCompletion* self = new(ELeave)CSsmSwpPolicyStepCompletion(aSwpPolicy, aServer, aSessionIndex); |
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87 return self; |
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88 } |
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89 |
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90 CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::CSsmSwpPolicyStepCompletion(MSsmSwpPolicy* aSwpPolicy, CSsmSwpPolicyServer& aServer, const TInt aSessionIndex) |
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91 : CActive(EPriorityStandard), iStep(EIdle), iSwpPolicy(aSwpPolicy), iSessionIndex(aSessionIndex), iServer(aServer) |
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92 { |
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93 CActiveScheduler::Add(this); |
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94 } |
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95 |
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96 CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::~CSsmSwpPolicyStepCompletion() |
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97 { |
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98 Cancel(); |
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99 } |
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100 |
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101 /** |
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102 Calls Initialize of the SwpPolicy. Sets the active object state as EInitialize. |
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103 */ |
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104 void CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::StartInitialize(const RMessagePtr2& aMessagePtr2) |
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105 { |
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106 __ASSERT_DEBUG(!IsActive(), PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicySrvStepError1)); |
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107 __ASSERT_DEBUG(iStep == EIdle, PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicySrvStepError1)); |
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108 |
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109 // This message will be completed in RunL(). |
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110 iMessagePtr = aMessagePtr2; |
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111 |
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112 // Initialize is the first step in the process of swp transition. |
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113 // CSsmSwpPolicyFrame does all the step checking before giving the request to ssmswppolicyserver |
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114 // so no further checking is required here. |
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115 iStep = EInitialize; |
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116 iSwpPolicy->Initialize(iStatus); |
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117 SetActive(); |
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118 DEBUGPRINT2(_L("CSsmSwpPolicyStepCompletion: CSsmSwpPolicyStepCompletion State %d"), iStep); |
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119 } |
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120 |
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121 /** |
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122 Calls PrepareCommandList of the SwpPolicy. Sets the active object state as EPrepareCommandList. |
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123 */ |
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124 void CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::StartPrepareCommandList(const TSsmSwp& aSwp, const RMessagePtr2& aMessagePtr2) |
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125 { |
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126 __ASSERT_DEBUG(!IsActive(), PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicySrvStepError2)); |
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127 __ASSERT_DEBUG(iStep == EInitialize, PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicySrvStepError2)); |
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128 |
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129 // This message will be completed in RunL(). |
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130 iMessagePtr = aMessagePtr2; |
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131 |
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132 // PrepareCommandList should be called only after initializing the swp policy. |
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133 // CSsmSwpPolicyFrame does all the step checking before giving the request to ssmswppolicyserver |
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134 // so no further checking is required here. |
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135 iStep = EPrepareCommandList; |
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136 DEBUGPRINT2(_L("CSsmSwpPolicyStepCompletion: CSsmSwpPolicyStepCompletion State %d"), iStep); |
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137 iSwpPolicy->PrepareCommandList(aSwp, iStatus); |
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138 SetActive(); |
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139 } |
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140 |
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141 /** |
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142 Calls HandleCleReturnValue of the SwpPolicy. |
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143 */ |
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144 void CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::StartHandleCleReturnValue(const TSsmSwp& aSwp, TInt aError, TInt aSeverity, const RMessagePtr2& aMessagePtr2) |
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145 { |
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146 __ASSERT_DEBUG(!IsActive(), PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicySrvStepError4)); |
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147 __ASSERT_DEBUG(iStep == ECallCommandList, PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicySrvStepError4)); |
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148 |
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149 // This message will be completed in RunL(). |
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150 iMessagePtr = aMessagePtr2; |
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151 |
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152 // HandleCleReturnValue should be called only after executing the command list which is returned by swp policy. |
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153 // CSsmSwpPolicyFrame does all the step checking before giving the request to ssmswppolicyserver so no further checking is required here. |
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154 iStep = EHandleCleReturnValue; |
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155 DEBUGPRINT2(_L("CSsmSwpPolicyStepCompletion: CSsmSwpPolicyStepCompletion State %d"), iStep); |
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156 iSwpPolicy->HandleCleReturnValue(aSwp, aError, aSeverity, iStatus); |
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157 SetActive(); |
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158 } |
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159 |
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160 void CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::RunL() |
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161 { |
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162 DEBUGPRINT2(_L("CSsmSwpPolicyStepCompletion: CSsmSwpPolicyStepCompletion State %d"), iStep); |
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163 // Completes the message |
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164 iMessagePtr.Complete(iStatus.Int()); |
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165 |
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166 // swp transition will be marked as complete only after the execution of HandleCleReturnValue method |
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167 if (iStep == EHandleCleReturnValue) |
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168 { |
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169 // In order to avoid the memory leak we have to delete the session info as this swp transition is cancelled, |
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170 // and the same session can be used for the next similar swp transition. |
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171 iServer.DeleteSSwpPolicySessionInfo(iSessionIndex); |
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172 } |
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173 } |
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174 |
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175 /** |
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176 Cancels any outstanding request, based on the state of the active object. |
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177 */ |
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178 void CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::DoCancel() |
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179 { |
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180 switch(iStep) |
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181 { |
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182 case EInitialize: |
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183 { |
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184 DEBUGPRINT1(_L("CSsmSwpPolicyStepCompletion: Cancelled the Initization of SwpPolicy")); |
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185 iSwpPolicy->InitializeCancel(); |
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186 iMessagePtr.Complete(KErrCancel); |
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187 break; |
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188 } |
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189 case EPrepareCommandList: |
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190 { |
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191 DEBUGPRINT1(_L("CSsmSwpPolicyStepCompletion: Cancelled the Preparation of the commandlist")); |
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192 iSwpPolicy->PrepareCommandListCancel(); |
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193 iMessagePtr.Complete(KErrCancel); |
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194 break; |
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195 } |
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196 case EHandleCleReturnValue: |
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197 { |
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198 DEBUGPRINT1(_L("CSsmSwpPolicyStepCompletion: Cancelled the HandleCleReturnValue")); |
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199 iSwpPolicy->HandleCleReturnValueCancel(); |
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200 iMessagePtr.Complete(KErrCancel); |
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201 break; |
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202 } |
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203 default: |
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204 { |
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205 break; |
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206 } |
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207 }; |
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208 } |
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209 |
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210 /** |
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211 Current RunL() implemenation doesn't leave, so RunError will never be called. |
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212 */ |
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213 TInt CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::RunError() |
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214 { |
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215 DEBUGPRINT1(_L("CSsmSwpPolicyStepCompletion: RunError")); |
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216 return KErrNone; |
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217 } |
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218 |
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219 /** |
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220 Gets the dll handle to SwpPolicy and initializes the SwpPolicy |
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221 */ |
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222 void CSsmSwpPolicyServer::CallSetDllHandleAndInitializeL(const RMessage2& aMessage, const TInt aSessionIndex) |
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223 { |
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224 __ASSERT_DEBUG(IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), PanicNow(KSsmSwpPolicyBadIdx, KSsmSwpPolicySrvArrayIndexInvalid)); |
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225 |
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226 RLibrary library; |
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227 // Sets the swp policy library handle. Library is owned by the CSsmSwpRequestHandler. |
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228 library.SetHandle(aMessage.Int0()); |
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229 |
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230 DEBUGPRINT1(_L("CSsmSwpPolicyServer: SwpPolicy handle is set")); |
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231 iSessionInfoArray[aSessionIndex].iSwpPolicy = reinterpret_cast<MSsmSwpPolicy*>(library.Lookup(1)()); |
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232 |
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233 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Create CSsmSwpPolicyStepCompletion active object")); |
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234 iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion = CSsmSwpPolicyStepCompletion::NewL(iSessionInfoArray[aSessionIndex].iSwpPolicy, *this, aSessionIndex); |
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235 |
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236 // aMessage will be completed in CSsmSwpPolicyStepCompletion's RunL method, |
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237 // when the Initialization of the swp policy is completed. |
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238 iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion->StartInitialize(aMessage); |
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239 } |
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240 |
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241 /** |
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242 Cancels the Initialization of the swppolicy, if any Initialization request is pending. |
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243 */ |
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244 void CSsmSwpPolicyServer::CallInitializeCancel(TInt aSessionIndex) |
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245 { |
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246 DEBUGPRINT1(_L("CSsmSwpPolicyServer: CallInitializeCancel")); |
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247 __ASSERT_DEBUG(IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), PanicNow(KSsmSwpPolicyBadIdx, KSsmSwpPolicySrvArrayIndexInvalid)); |
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248 __ASSERT_DEBUG(iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion != NULL, PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicyServerError1)); |
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249 |
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250 // CSsmSwpPolicyFrame checks whether initialize is called before cancelling the initialization, , so no need to check |
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251 // for valid iSsmSwpPolicyStepCompletion pointer. |
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252 // iSessionInfoArray[aSessionIndex].iMessagePtr will be completed in CSsmSwpPolicyStepCompletion's DoCancel method, |
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253 iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion->Cancel(); |
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254 |
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255 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Deleted the session info as Initialize is cancelled")); |
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256 // In order to avoid the memory leak we have to delete the session info as this swp transition is cancelled, |
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257 // and the same session can be used for the next similar swp transition. |
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258 DeleteSSwpPolicySessionInfo(aSessionIndex); |
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259 } |
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260 |
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261 /** |
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262 Prepares the commandlist in swppolicy |
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263 */ |
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264 void CSsmSwpPolicyServer::CallPrepareCommandListL(const RMessage2& aMessage, TInt aSessionIndex) |
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265 { |
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266 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Call SwpPolicy's PrepareCommandList ")); |
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267 __ASSERT_DEBUG(IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), PanicNow(KSsmSwpPolicyBadIdx, KSsmSwpPolicySrvArrayIndexInvalid)); |
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268 __ASSERT_DEBUG(iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion != NULL, PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicyServerError2)); |
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269 |
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270 TSsmSwp ssmSwp(0,0); |
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271 TPckg<TSsmSwp> swpBuf(ssmSwp); |
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272 aMessage.ReadL(0, swpBuf); |
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273 |
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274 // CSsmSwpPolicyFrame checks whether initialize is called before CallHandleCleReturnValue is called, so no need to check |
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275 // for valid iSsmSwpPolicyStepCompletion pointer. |
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276 |
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277 // aMessage will be completed in CSsmSwpPolicyStepCompletion's RunL method, |
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278 // when the preparation of the commandlist is completed. |
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279 iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion->StartPrepareCommandList(ssmSwp, aMessage); |
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280 } |
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281 |
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282 /** |
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283 Cancels the preparation of the commandlist, if any PrepareCommandList request is pending. |
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284 */ |
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285 void CSsmSwpPolicyServer::CallPrepareCommandListCancel(TInt aSessionIndex) |
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286 { |
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287 DEBUGPRINT1(_L("CSsmSwpPolicyServer: CallPrepareCommandListCancel")); |
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288 __ASSERT_DEBUG(IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), PanicNow(KSsmSwpPolicyBadIdx, KSsmSwpPolicySrvArrayIndexInvalid)); |
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289 __ASSERT_DEBUG(iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion != NULL, PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicyServerError3)); |
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290 |
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291 // CSsmSwpPolicyFrame checks whether initialize is called before cancelling the initialization, so no need to check |
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292 // for valid iSsmSwpPolicyStepCompletion pointer. |
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293 // iSessionInfoArray[aSessionIndex].iMessagePtr will be completed in CSsmSwpPolicyStepCompletion's DoCancel method, |
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294 iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion->Cancel(); |
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295 |
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296 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Deleted the session info as PrepareCommandList is cancelled")); |
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297 // In order to avoid the memory leak we have to delete the session info as this swp transition is cancelled, |
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298 // and the same session can be used for the next similar swp transition. |
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299 DeleteSSwpPolicySessionInfo(aSessionIndex); |
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300 } |
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301 |
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302 /** |
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303 Returns the commandlist to the client from swppolicy. |
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304 @return A pointer to commandlist. |
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305 */ |
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306 void CSsmSwpPolicyServer::CallCommandListL(const RMessage2& aMessage, TInt aSessionIndex) |
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307 { |
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308 DEBUGPRINT1(_L("CSsmSwpPolicyServer: CallCommandListL")); |
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309 __ASSERT_DEBUG(IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), PanicNow(KSsmSwpPolicyBadIdx, KSsmSwpPolicySrvArrayIndexInvalid)); |
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310 __ASSERT_DEBUG(iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion != NULL, PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicyServerError4)); |
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311 // CommandList should be called only after preparing the command list, so the active object state should be EPrepareCommandList. |
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312 __ASSERT_DEBUG(iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion->CurrentStep() == CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::EPrepareCommandList, |
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313 PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicySrvStepError3)); |
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314 |
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315 // CSsmSwpPolicyFrame checks whether initialize is called before CallCommandList is called, so no need to check |
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316 // for valid iSsmSwpPolicyStepCompletion pointer. |
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317 // Sets the current step to CallCommandList |
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318 iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion->SetCurrentStep(CSsmSwpPolicyServer::CSsmSwpPolicyStepCompletion::ECallCommandList); |
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319 CSsmCommandList* ssmCmdList = (iSessionInfoArray[aSessionIndex].iSwpPolicy)->CommandList(); |
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320 CleanupStack::PushL(ssmCmdList); |
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321 CBufFlat* buf = CBufFlat::NewL(KSsmSwpPolicyStreamBufMaxSize); |
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322 CleanupStack::PushL(buf); |
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323 |
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324 RBufWriteStream writeStream(*buf); |
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325 CleanupClosePushL(writeStream); |
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326 |
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327 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Externalizes the commandlist")); |
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328 ssmCmdList->ExternalizeL(writeStream); |
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329 |
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330 // Ensure any memory that might already have been allocated is disposed of. |
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331 // Transfer the streamed cmd list from the CBuf. |
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332 RBuf8 cmdListBuf; |
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333 cmdListBuf.CreateL(buf->Size()); |
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334 CleanupClosePushL(cmdListBuf); |
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335 buf->Read(0, cmdListBuf); |
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336 |
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337 aMessage.WriteL(0, cmdListBuf); |
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338 |
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339 aMessage.Complete(KErrNone); |
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340 CleanupStack::PopAndDestroy(4, ssmCmdList); // buf, writeStream and cmdListBuf |
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341 } |
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342 |
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343 /** |
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344 Handles the value returned by Cle. |
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345 */ |
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346 void CSsmSwpPolicyServer::CallHandleCleReturnValueL(const RMessage2& aMessage, TInt aSessionIndex) |
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347 { |
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348 DEBUGPRINT1(_L("CSsmSwpPolicyServer: CallHandleCleReturnValueL")); |
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349 __ASSERT_DEBUG(IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), PanicNow(KSsmSwpPolicyBadIdx, KSsmSwpPolicySrvArrayIndexInvalid)); |
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350 __ASSERT_DEBUG(iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion != NULL, PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicyServerError5)); |
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351 |
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352 TSsmSwp ssmSwp(0,0); |
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353 TPckg<TSsmSwp> swpBuf(ssmSwp); |
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354 aMessage.ReadL(0, swpBuf); |
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355 |
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356 const TInt error = aMessage.Int1(); |
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357 const TInt severity = aMessage.Int2(); |
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358 |
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359 // CSsmSwpPolicyFrame checks whether initialize is called before CallHandleCleReturnValue is called, so no need to check |
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360 // for valid iSsmSwpPolicyStepCompletion pointer. |
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361 |
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362 // aMessage will be completed in CSsmSwpPolicyStepCompletion's RunL method, |
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363 // when the cle's return value is handled by the swppolicy. |
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364 (iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion)->StartHandleCleReturnValue(ssmSwp, error, severity, aMessage); |
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365 } |
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366 |
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367 /** |
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368 Cancels the HandleCleReturnValue, if any HandleCleReturnValue request is pending. |
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369 */ |
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370 void CSsmSwpPolicyServer::CallHandleCleReturnValueCancel(TInt aSessionIndex) |
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371 { |
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372 DEBUGPRINT1(_L("CSsmSwpPolicyServer: CallHandleCleReturnValueCancel")); |
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373 __ASSERT_DEBUG(IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), PanicNow(KSsmSwpPolicyBadIdx, KSsmSwpPolicySrvArrayIndexInvalid)); |
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374 __ASSERT_DEBUG(iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion != NULL, PanicNow(KSsmSwpPolicyServer, ESsmSwpPolicyServerError6)); |
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375 |
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376 // CSsmSwpPolicyFrame checks whether initialize is called before cancelling the initialization, so no need to check |
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377 // for valid iSsmSwpPolicyStepCompletion pointer. |
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378 // iSessionInfoArray[aSessionIndex].iMessagePtr will be completed in CSsmSwpPolicyStepCompletion's DoCancel method. |
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379 iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion->Cancel(); |
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380 |
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381 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Deleted the session info as HandleCleReturnValue is cancelled")); |
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382 // In order to avoid the memory leak we have to delete the session info as this swp transition is cancelled, |
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383 // and the same session can be used for the next similar swp transition. |
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384 DeleteSSwpPolicySessionInfo(aSessionIndex); |
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385 } |
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386 |
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387 /** |
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388 Iterate through iSessionInfoArray to find an unused array element |
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389 If found, use it. Otherwise, Append() a new SSwpPolicySessionInfo. |
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390 This function is called during CSession construction. |
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391 */ |
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392 void CSsmSwpPolicyServer::RegisterSessionL(TInt& aSessionIndex) |
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393 { |
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394 const TInt count = iSessionInfoArray.Count(); |
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395 TBool slotFound = EFalse; |
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396 |
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397 for(TInt i = 0; i < count; ++i) |
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398 { |
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399 if(!iSessionInfoArray[i].iInUse) |
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400 { |
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401 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Using the free slot of the sessionarray")); |
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402 iSessionInfoArray[i].iInUse = ETrue; |
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403 __ASSERT_ALWAYS(NULL, iSessionInfoArray[i].iSwpPolicy); |
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404 aSessionIndex = i; |
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405 slotFound = ETrue; |
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406 break; |
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407 } |
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408 } |
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409 |
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410 if(!slotFound) |
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411 { |
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412 DEBUGPRINT1(_L("CSsmSwpPolicyServer: No free slot found, so appending a new member to the sessionarray")); |
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413 SSwpPolicySessionInfo sessionInfo; |
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414 sessionInfo.iInUse = ETrue; |
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415 sessionInfo.iSwpPolicy = NULL; |
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416 sessionInfo.iSsmSwpPolicyStepCompletion = NULL; |
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417 iSessionInfoArray.AppendL(sessionInfo); |
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418 // using count instead of iSessionInfoArray.Count()-1 as it is set before appending the element to the array, |
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419 // and its value is equal to iSessionInfoArray.Count()-1 |
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420 aSessionIndex = count; |
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421 } |
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422 DEBUGPRINT2(_L("Registered SsmSwpPolicyCli in slot %d"), aSessionIndex); |
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423 } |
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424 |
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425 /** |
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426 This method is used to delete the session information once the swp transition is complete. |
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427 This is required as the same session can be used for more than one individual swp transition. |
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428 */ |
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429 void CSsmSwpPolicyServer::DeleteSSwpPolicySessionInfo(TInt aSessionIndex) |
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430 { |
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431 __ASSERT_DEBUG(IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), PanicNow(KSsmSwpPolicyBadIdx, KSsmSwpPolicySrvArrayIndexInvalid)); |
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432 |
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433 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Deletes the SwpPolicySession information.")); |
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434 if(iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion) |
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435 { |
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436 delete iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion; |
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437 iSessionInfoArray[aSessionIndex].iSsmSwpPolicyStepCompletion = NULL; |
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438 } |
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439 |
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440 if(iSessionInfoArray[aSessionIndex].iSwpPolicy) |
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441 { |
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442 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Releases the SwpPolicy")); |
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443 (iSessionInfoArray[aSessionIndex].iSwpPolicy)->Release(); |
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444 iSessionInfoArray[aSessionIndex].iSwpPolicy = NULL; |
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445 } |
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446 } |
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447 |
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448 /** |
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449 Called from CSession destructor. |
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450 */ |
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451 void CSsmSwpPolicyServer::DeregisterSession(const TInt& aSessionIndex) |
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452 { |
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453 __ASSERT_DEBUG(IN_RANGE(aSessionIndex, iSessionInfoArray.Count()), PanicNow(KSsmSwpPolicyBadIdx, KSsmSwpPolicySrvArrayIndexInvalid)); |
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454 |
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455 DeleteSSwpPolicySessionInfo(aSessionIndex); |
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456 iSessionInfoArray[aSessionIndex].iInUse = EFalse; |
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457 |
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458 // Remove unused elements at the end of the array, so iSessionInfoArray can be (granular) shrunk |
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459 const TInt count = iSessionInfoArray.Count(); |
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460 TBool slotRemoved = EFalse; |
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461 for (TInt i = count-1; i >= 0 ; i--) |
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462 { |
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463 if (!iSessionInfoArray[i].iInUse) |
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464 { |
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465 iSessionInfoArray.Remove(i); |
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466 slotRemoved = ETrue; |
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467 } |
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468 else |
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469 { |
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470 break; |
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471 } |
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472 } |
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473 if (slotRemoved) |
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474 { |
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475 iSessionInfoArray.GranularCompress(); |
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476 } |
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477 DEBUGPRINT2(_L("De-registered SsmSwpPolicyCli slot %d"), aSessionIndex); |
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478 } |
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479 |
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480 /** |
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481 Used to create a new server-side session. |
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482 @return A pointer to the new instance of CSession2. |
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483 @leave KErrNotSupported if versions are incompatible. |
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484 */ |
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485 EXPORT_C CSession2* CSsmSwpPolicyServer::NewSessionL(const TVersion& aVersion, const RMessage2& /*aMessage*/) const |
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486 { |
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487 TVersion version(KSsmSwpPolicySrvVersionMajor, KSsmSwpPolicySrvVersionMinor, KSsmSwpPolicySrvVersionBuild); |
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488 |
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489 if(!User::QueryVersionSupported(version, aVersion)) |
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490 { |
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491 DEBUGPRINT1(_L("CSsmSwpPolicyServer: Server version not supported")); |
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492 User::Leave(KErrNotSupported); |
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493 } |
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494 |
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495 CSsmSwpPolicyServer& mutatedSelf = const_cast< CSsmSwpPolicyServer& >(*this); |
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496 return CSsmSwpPolicySession::NewL(mutatedSelf); |
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497 } |
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498 |
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499 /** |
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500 Used to create a new CSsmSwpPolicyServer |
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501 @return A pointer to the CSsmSwpPolicyServer |
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502 */ |
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503 CSsmSwpPolicyServer* CSsmSwpPolicyServer::NewLC(const TDesC& aServerName) |
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504 { |
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505 CSsmSwpPolicyServer* self = new(ELeave) CSsmSwpPolicyServer; |
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506 CleanupStack::PushL(self); |
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507 self->ConstructL(aServerName); |
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508 return self; |
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509 } |
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510 |
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511 /** |
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512 Static function used to create and start CSsmSwpPolicyServer |
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513 @return KErrAlreadyExists if the server is already running |
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514 */ |
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515 EXPORT_C TInt CSsmSwpPolicyServer::StartSsmSwpPolicySrv(const TDesC& aServerName) |
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516 { |
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517 TAny* threadParam = reinterpret_cast<TAny*>(const_cast<TDesC*>(&aServerName)); |
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518 |
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519 // Create a Unique name for the thread name |
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520 TName name(aServerName); |
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521 _LIT(KUnderScore, "_"); |
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522 name.Append(KUnderScore); |
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523 name.AppendNum(Math::Random(), EHex); |
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524 |
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525 const TInt KSsmPolicySrvMinHeapSize = 0x2000; // 8kB |
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526 const TInt KSsmPolicySrvMaxHeapSize = 10 * KSsmPolicySrvMinHeapSize; |
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527 RThread srvThread; |
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528 TInt err = srvThread.Create(name, &CSsmSwpPolicyServer::SsmSwpPolicySrvThreadFn, |
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529 KDefaultStackSize, KSsmPolicySrvMinHeapSize, KSsmPolicySrvMaxHeapSize, |
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530 threadParam, EOwnerProcess); |
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531 |
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532 DEBUGPRINT2(_L("CSsmSwpPolicyServer: SsmSwpPolicyServer created with %d") ,err); |
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533 if(KErrNone == err) |
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534 { |
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535 TRequestStatus trs; |
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536 |
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537 srvThread.Rendezvous(trs); |
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538 srvThread.Resume(); |
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539 |
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540 User::WaitForRequest(trs); |
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541 err = trs.Int(); |
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542 srvThread.Close(); |
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543 } |
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544 |
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545 return err; |
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546 } |
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547 |
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548 /** |
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549 Creates the ssmSwpPolicyServer |
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550 */ |
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551 TInt CSsmSwpPolicyServer::SsmSwpPolicySrvThreadFn(TAny* aAny) |
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552 { |
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553 const TDesC* serverName = const_cast<const TDesC*>(static_cast<TDesC*>(aAny)); |
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554 TInt err = KErrNoMemory; |
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555 CTrapCleanup* cleanup = CTrapCleanup::New(); |
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556 if(cleanup) |
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557 { |
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558 TRAP(err, |
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559 { |
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560 CActiveScheduler* sched = new(ELeave) CActiveScheduler(); |
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561 CleanupStack::PushL(sched); |
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562 CActiveScheduler::Install(sched); |
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563 |
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564 CSsmSwpPolicyServer* ssmSwpPolicySrv = CSsmSwpPolicyServer::NewLC(*serverName); |
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565 RThread::Rendezvous(KErrNone); |
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566 // Must not use serverName after rendezvousing with client |
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567 serverName = NULL; |
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568 |
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569 CActiveScheduler::Start(); |
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570 |
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571 CleanupStack::PopAndDestroy(ssmSwpPolicySrv); |
|
572 CleanupStack::PopAndDestroy(sched); |
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573 }); |
|
574 |
|
575 delete cleanup; |
|
576 } |
|
577 |
|
578 return err; |
|
579 } |
|
580 |
|
581 CSsmSwpPolicyServer::CSsmSwpPolicyServer() |
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582 : CPolicyServer(EPriorityHigh, KSsmSwpPolicyServerPolicy, EUnsharableSessions) |
|
583 { |
|
584 } |
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585 |
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586 /** |
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587 Starts the ssmSwpPolicyServer |
|
588 */ |
|
589 void CSsmSwpPolicyServer::ConstructL(const TDesC& aServerName) |
|
590 { |
|
591 StartL(aServerName); |
|
592 // The starting thread is signalled in the thread function. |
|
593 } |
|
594 |
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595 CSsmSwpPolicyServer::~CSsmSwpPolicyServer() |
|
596 { |
|
597 iSessionInfoArray.Close(); |
|
598 } |
|
599 |