author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 12 Oct 2009 10:17:04 +0300 | |
changeset 15 | da2ae96f639b |
parent 8 | 35751d3474b7 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* Key Management Server session class code. |
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* |
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*/ |
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|
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|
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/** |
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@file |
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*/ |
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#include "kmsclient.h" |
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|
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#include "kmsserver.h" |
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|
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CKeyMgmtSession* CKeyMgmtSession::NewL() |
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/** |
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Factory function allocates new instance of CKeyMgmtSession. Used |
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when the KMS client opens a session with the server. |
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|
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@return New, initialized instance of CKeyMgmtSession. |
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The returned object is owned by the caller. |
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*/ |
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{ |
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CKeyMgmtSession* self = new(ELeave) CKeyMgmtSession(); |
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CleanupStack::PushL(self); |
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self->ConstructL(); |
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CleanupStack::Pop(self); |
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return self; |
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} |
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|
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void CKeyMgmtSession::ConstructL() |
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/** |
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Initialize this session by opening a channel to the KMS device driver. |
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This session is maintained until the session is destroyed. |
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*/ |
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{ |
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TInt r = iChannel.Open(); |
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User::LeaveIfError(r); |
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} |
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|
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CKeyMgmtSession::~CKeyMgmtSession() |
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/** |
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Free resources owned by this session. Specifically, closes the |
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KMS LDD channel. |
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*/ |
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{ |
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iChannel.Close(); |
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|
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// if the last session was removed then stop the server |
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CKeyMgmtServer* srv = (CKeyMgmtServer*) Server(); |
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srv->DecrementSessionCount(); |
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} |
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void CKeyMgmtSession::ServiceL(const RMessage2& aMessage) |
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/** |
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Implement CSession2 by handling the supplied function request. |
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@param aMessage Information about request from client. |
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Provides access to function identifier |
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and arguments which were passed. |
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*/ |
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{ |
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RThread thd; |
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aMessage.ClientL(thd); |
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CleanupClosePushL(thd); |
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RProcess pr; |
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User::LeaveIfError(thd.Process(pr)); |
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CleanupClosePushL(pr); |
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|
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KeyMgmtSvrImpl::TServerFunction f = |
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static_cast<KeyMgmtSvrImpl::TServerFunction>(aMessage.Function()); |
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switch (f) |
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{ |
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case KeyMgmtSvrImpl::EGenerateKey: |
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GenerateKeyL(aMessage, pr); |
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break; |
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case KeyMgmtSvrImpl::EStoreKey: |
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StoreKeyL(aMessage, pr); |
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break; |
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case KeyMgmtSvrImpl::EDeleteKey: |
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DeleteKeyL(aMessage, pr); |
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break; |
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case KeyMgmtSvrImpl::EAddUsage: |
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AddUsageL(aMessage, pr); |
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break; |
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case KeyMgmtSvrImpl::EDeleteUsage: |
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|
107 |
DeleteUsageL(aMessage, pr); |
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|
108 |
break; |
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|
109 |
|
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|
110 |
case KeyMgmtSvrImpl::ESetHeapFail: |
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|
111 |
__UHEAP_MARK; |
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|
112 |
__UHEAP_SETFAIL(RAllocator::EDeterministic, aMessage.Int0()); |
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|
113 |
break; |
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|
114 |
|
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115 |
case KeyMgmtSvrImpl::EEndHeapFail: |
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|
116 |
__UHEAP_MARKEND; |
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|
117 |
__UHEAP_RESET; |
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118 |
break; |
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119 |
|
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120 |
default: |
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121 |
User::Leave(KErrNotSupported); |
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122 |
break; |
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123 |
} |
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124 |
|
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125 |
CleanupStack::PopAndDestroy(2, &thd); |
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126 |
|
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127 |
// if an error occured then the handler function will have left |
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128 |
aMessage.Complete(KErrNone); |
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129 |
} |
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130 |
|
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131 |
void CKeyMgmtSession::ServiceError(const RMessage2& aMessage, TInt aError) |
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132 |
/** |
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133 |
Override CSession2 by handling any leave which occured during the ServiceL. |
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134 |
|
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135 |
If the leave is because of a bad descriptor, then panick the client with |
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136 |
EBadClientDescriptor. Otherwise, complete the request with that error code. |
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|
137 |
|
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138 |
@param aMessage Message which caused leave to occur. |
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139 |
@param aError Leave code. This is a Symbian OS error code. |
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140 |
@see CSession2::ServiceError |
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141 |
*/ |
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142 |
{ |
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|
143 |
if (aError == KErrBadDescriptor) |
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144 |
aMessage.Panic(KKmsClientPanicCat, EBadClientDescriptor); |
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145 |
else |
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|
146 |
aMessage.Complete(aError); |
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147 |
} |
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|
148 |
|
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|
149 |
void CKeyMgmtSession::GenerateKeyL(const RMessage2& aMessage, RProcess aClientProc) |
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150 |
/** |
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|
151 |
Generate a new key in the hardware store. |
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|
152 |
|
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153 |
@param aMessage Provides access to data sent by client. |
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154 |
@param aClientProc The client process, which is used to manage key ownership. |
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155 |
*/ |
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156 |
{ |
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157 |
TInt len = aMessage.Int0(); |
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158 |
TKeyHandle kh; |
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|
159 |
TRequestStatus rs; |
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|
160 |
|
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|
161 |
iChannel.GenerateKey(len, aClientProc, kh, rs); |
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|
162 |
User::WaitForRequest(rs); |
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|
163 |
User::LeaveIfError(rs.Int()); |
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|
164 |
|
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|
165 |
WriteHandleToClientL(aMessage, aClientProc, kh); |
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|
166 |
} |
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|
167 |
|
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|
168 |
void CKeyMgmtSession::StoreKeyL(const RMessage2& aMessage, RProcess aClientProc) |
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|
169 |
/** |
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|
170 |
Store the client's descriptor as a key in the hardware store. |
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|
171 |
|
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|
172 |
@param aMessage Provides access to data sent by client. |
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|
173 |
@param aClientProc The client process, which is used to manage key ownership. |
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|
174 |
*/ |
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|
175 |
{ |
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|
176 |
TInt dataLen = aMessage.GetDesLengthL(0); |
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|
177 |
|
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|
178 |
// create server-side copy of the data |
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|
179 |
HBufC8* srvData = HBufC8::NewLC(dataLen); |
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|
180 |
TPtr8 srvPtr = srvData->Des(); |
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|
181 |
aMessage.ReadL(0, srvPtr); |
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|
182 |
|
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|
183 |
TKeyHandle kh; |
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|
184 |
TRequestStatus rs; |
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|
185 |
iChannel.StoreKey(srvPtr, aClientProc, kh, rs); |
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|
186 |
User::WaitForRequest(rs); |
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|
187 |
User::LeaveIfError(rs.Int()); |
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|
188 |
|
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|
189 |
WriteHandleToClientL(aMessage, aClientProc, kh); |
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|
190 |
|
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|
191 |
CleanupStack::PopAndDestroy(srvData); |
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|
192 |
} |
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|
193 |
|
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|
194 |
void CKeyMgmtSession::WriteHandleToClientL(const RMessage2& aMessage, RProcess aClientProc, TKeyHandle aHandle) |
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|
195 |
/** |
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|
196 |
Helper function for GenerateKeyL and StoreKeyL attempts to write the supplied |
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|
197 |
key handle back to the client which owns this session object. |
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|
198 |
|
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|
199 |
If the handle cannot be written to the client, this function attempts to delete |
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|
200 |
the supplied key, but cannot perform further cleanup if that fails. |
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|
201 |
|
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|
202 |
@param aMessage Provides access to data sent by client. Specifically, argument 1 |
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|
203 |
refers to a descriptor which packages the client's TKeyHandle object. |
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|
204 |
@param aClientProc The client process, which is used to manage key ownership. This is |
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|
205 |
used to delete the newly-created key if cannot write to client handle. |
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|
206 |
@param aHandle Handle value to write back to client. |
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|
207 |
*/ |
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|
208 |
{ |
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|
209 |
TPckgC<TKeyHandle> khPckg(aHandle); |
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|
210 |
|
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|
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TInt r = aMessage.Write(1, khPckg); |
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if (r != KErrNone) |
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{ |
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TRequestStatus rs; |
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iChannel.DeleteKey(aClientProc, aHandle, rs); |
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User::WaitForRequest(rs); |
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User::Leave(r); |
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} |
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} |
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|
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void CKeyMgmtSession::DeleteKeyL(const RMessage2& aMessage, RProcess aClientProc) |
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/** |
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Delete a key from the hardware store. |
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|
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@param aMessage Provides access to data sent by client. Specifically, argument 0 |
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is the key handle as an integer. |
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@param aClientProc The client process, which is used to manage key ownership. This is |
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used to delete the newly-created key if cannot write to client handle. |
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*/ |
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{ |
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TKeyHandle kh = { aMessage.Int0() }; |
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|
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TRequestStatus rs; |
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iChannel.DeleteKey(aClientProc, kh, rs); |
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User::WaitForRequest(rs); |
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User::LeaveIfError(rs.Int()); |
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} |
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|
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void CKeyMgmtSession::AddUsageL(const RMessage2& aMessage, RProcess aClientProc) |
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/** |
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Add a usage entry to the hardware store. |
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|
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@param aMessage Provides access to data sent by client. Specifically, argument 0 |
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is the key handle as an integer. Argument 1 is the operation as an |
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integer, and argument 3 refers to the descriptor which packages the |
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client's security policy object. |
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@param aClientProc The client process, which is used to manage key ownership. This is |
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used to delete the newly-created key if cannot write to client handle. |
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*/ |
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{ |
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TKeyHandle kh = { aMessage.Int0() }; |
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TInt op = aMessage.Int1(); |
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|
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TSecurityPolicyBuf secPolBuf; |
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TInt r = aMessage.Read(2, secPolBuf); |
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User::LeaveIfError(r); |
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|
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TRequestStatus rs; |
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iChannel.AddUsage(aClientProc, kh, op, secPolBuf(), rs); |
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User::WaitForRequest(rs); |
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User::LeaveIfError(rs.Int()); |
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} |
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|
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void CKeyMgmtSession::DeleteUsageL(const RMessage2& aMessage, RProcess aClientProc) |
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/** |
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Delete a usage entry from the hardware store. |
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|
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@param aMessage Provides access to data sent by client. Specifically, argument 0 |
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is the key handle as an integer. Argument 1 is the operation as an |
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integer. |
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@param aClientProc The client process which claims to own the key. |
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*/ |
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{ |
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TKeyHandle kh = { aMessage.Int0() }; |
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TInt op = aMessage.Int1(); |
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|
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TRequestStatus rs; |
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iChannel.DeleteUsage(aClientProc, kh, op, rs); |
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User::WaitForRequest(rs); |
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User::LeaveIfError(rs.Int()); |
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} |
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282 |