author | William Roberts <williamr@symbian.org> |
Wed, 10 Nov 2010 13:36:07 +0000 | |
branch | RCL_3 |
changeset 79 | 4b172931a477 |
parent 0 | af10295192d8 |
permissions | -rw-r--r-- |
0
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// Copyright (c) 1997-2009 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 "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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// Authentication Protocol (CHAP) - RFC 1994, containing source code |
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// common to all PPP authentication protocols derived from CHAP. |
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// |
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// |
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/** |
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@file |
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@brief Source file for the implementation of PPP Challenge Handshake |
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@internalComponent |
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*/ |
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#include "PPPCHAP.H" |
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CPppChap::~CPppChap() |
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/** |
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Destructor. |
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@internalComponent |
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*/ |
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{ |
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if (iPppLcp != 0) |
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{ |
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iChallengePacket.Free(); |
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TimerDelete(); |
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} |
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} |
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void CPppChap::InitL(CPppLcp* aLcp) |
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/** |
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@copydoc CPppAuthentication::InitL(CPppLcp*) |
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@see CPppAuthentication::InitL(CPppLcp*) |
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@internalComponent |
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*/ |
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{ |
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CPppAuthentication::InitL(aLcp); |
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TimerConstructL(KPppFsmTimerPriority); |
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Register(); |
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} |
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void CPppChap::LowerLayerUp() |
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/** |
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@copydoc MPppRecvr::LowerLayerUp() |
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@see MPppRecvr::LowerLayerUp() |
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@internalComponent |
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*/ |
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{ |
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ASSERT(iPppLcp != 0); |
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AuthenticateRequest(); |
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} |
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void CPppChap::LowerLayerDown(TInt /*aStatus*/) |
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/** |
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@copydoc MPppRecvr::LowerLayerDown(TInt) |
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@see MPppRecvr::LowerLayerDown(TInt) |
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@internalComponent |
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*/ |
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{ |
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ASSERT(iPppLcp != 0); |
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TimerCancel(); |
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} |
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void CPppChap::AuthenticateComplete(TInt aStatus) |
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/** |
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@copydoc CPppAuthentication::AuthenticateComplete(TInt) |
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@see CPppAuthentication::AuthenticateComplete(TInt) |
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@internalComponent |
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*/ |
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{ |
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ASSERT(iPppLcp != 0); |
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if (aStatus==KErrNone) |
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{ |
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if (!iChallengePacket.IsEmpty()) |
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{ |
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iResponseRetryCount = 0; |
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//ignore Error, if fails it will time out |
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//and try again anyway. |
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TRAP_IGNORE(RespondL()); |
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} |
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} |
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else |
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DoFail(aStatus); |
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} |
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TBool CPppChap::RecvFrame(RMBufChain& aPacket) |
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/** |
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@copydoc MPppRecvr::RecvFrame(RMBufChain&) |
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@see MPppRecvr::RecvFrame(RMBufChain&) |
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@internalComponent |
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*/ |
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{ |
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ASSERT(iPppLcp != 0); |
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RMBufPacket pkt; |
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diff
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|
109 |
pkt.Assign(aPacket); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
110 |
pkt.Unpack(); |
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Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
111 |
RMBufPktInfo* info = pkt.Info(); |
af10295192d8
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parents:
diff
changeset
|
112 |
|
af10295192d8
Revision: 201004
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diff
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|
113 |
if (IsInactive()) |
af10295192d8
Revision: 201004
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parents:
diff
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|
114 |
{ |
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Revision: 201004
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diff
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|
115 |
pkt.Free(); |
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Revision: 201004
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parents:
diff
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|
116 |
return EFalse; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
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|
117 |
} |
af10295192d8
Revision: 201004
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parents:
diff
changeset
|
118 |
|
af10295192d8
Revision: 201004
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parents:
diff
changeset
|
119 |
|
af10295192d8
Revision: 201004
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parents:
diff
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|
120 |
// Extract and drop LCP header |
af10295192d8
Revision: 201004
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parents:
diff
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|
121 |
pkt.Align(4); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
122 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
123 |
if (info->iLength < KPppChapCodeFieldSize + |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
124 |
KPppChapIdFieldSize + |
af10295192d8
Revision: 201004
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parents:
diff
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|
125 |
KPppChapLengthFieldSize) |
af10295192d8
Revision: 201004
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parents:
diff
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|
126 |
{ |
af10295192d8
Revision: 201004
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diff
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|
127 |
// Too short! |
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diff
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|
128 |
pkt.Free(); |
af10295192d8
Revision: 201004
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parents:
diff
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|
129 |
return EFalse; |
af10295192d8
Revision: 201004
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parents:
diff
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|
130 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
131 |
|
af10295192d8
Revision: 201004
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parents:
diff
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|
132 |
|
af10295192d8
Revision: 201004
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parents:
diff
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|
133 |
// check that the length of the packet is OK |
af10295192d8
Revision: 201004
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parents:
diff
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|
134 |
TUint16 length = BigEndian::Get16(pkt.First()->Ptr() + |
af10295192d8
Revision: 201004
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parents:
diff
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|
135 |
KPppChapCodeFieldSize + |
af10295192d8
Revision: 201004
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parents:
diff
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|
136 |
KPppChapIdFieldSize); |
af10295192d8
Revision: 201004
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parents:
diff
changeset
|
137 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
138 |
if (info->iLength < length) |
af10295192d8
Revision: 201004
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parents:
diff
changeset
|
139 |
{ |
af10295192d8
Revision: 201004
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parents:
diff
changeset
|
140 |
// Too short! |
af10295192d8
Revision: 201004
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parents:
diff
changeset
|
141 |
pkt.Free(); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
142 |
return EFalse; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
143 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
144 |
else if (info->iLength > length) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
145 |
pkt.TrimEnd(length); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
146 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
147 |
ASSERT(pkt.Length()==length); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
148 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
149 |
TUint8 code = *(pkt.First()->Ptr()); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
150 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
151 |
TInt ret; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
152 |
switch (code) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
153 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
154 |
case KPppChapChallengeCode: |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
155 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
156 |
TRAP(ret, ChallengeL(pkt)); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
157 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
158 |
break; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
159 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
160 |
case KPppChapResponseCode: |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
161 |
// { |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
162 |
// TInt vc = *ptr++; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
163 |
// TUint8* vp = ptr; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
164 |
// TInt nc = len-(vc+1); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
165 |
// TUint8* np = ptr+vc; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
166 |
// } |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
167 |
break; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
168 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
169 |
case KPppChapSuccessCode: |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
170 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
171 |
TRAP(ret, SuccessL(pkt)); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
172 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
173 |
break; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
174 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
175 |
case KPppChapFailureCode: |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
176 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
177 |
TRAP(ret, FailureL(pkt)); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
178 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
179 |
if (ret!=KErrNone) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
180 |
DoFail(KErrIfAuthenticationFailure); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
181 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
182 |
break; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
183 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
184 |
// default: invalid CHAP packet code |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
185 |
// simply ignore the packet |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
186 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
187 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
188 |
pkt.Free(); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
189 |
return EFalse; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
190 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
191 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
192 |
// RFC 1994: "The Challenge-Handshake Authentication Protocol (CHAP) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
193 |
// is used to periodically verify the identity of the peer using a |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
194 |
// 3-way handshake. This is done upon initial link establishment, and |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
195 |
// MAY be repeated anytime after the link has been established." |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
196 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
197 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
198 |
void CPppChap::ChallengeL(RMBufPacket& aPacket) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
199 |
/** |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
200 |
Processes a CHAP Challenge packet and attempts to respond to the |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
201 |
challenge. |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
202 |
@param aPacket [in] The CHAP Challenge packet to be processed. |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
203 |
@internalComponent |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
204 |
*/ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
205 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
206 |
TimerCancel(); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
207 |
ProcessChallengePacketL(aPacket); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
208 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
209 |
if (IsAuthenticateRequestDone()) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
210 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
211 |
iResponseRetryCount = 0; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
212 |
RespondL(); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
213 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
214 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
215 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
216 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
217 |
void CPppChap::CheckChallengePacketL(RMBufPacket& aPacket) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
218 |
/** |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
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Checks that a CHAP Challenge packet is valid. Leaves if the packet |
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is malformed. |
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@param aPacket [in] The CHAP Challenge packet to be checked. |
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@internalComponent |
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*/ |
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{ |
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// In the case of MS-CHAP-V1 and MS-CHAP-V2 the Challenge Name may be |
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// empty. RFC 1994: "The Name field is one or more octets [...]". |
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// RFC2433, RFC2759: "Microsoft authenticators do not currently |
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// provide information in the Name field. This may change in the |
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// future." |
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__ASSERT_ALWAYS(aPacket.Length() >= KPppChapCodeFieldSize + |
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KPppChapIdFieldSize + |
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KPppChapLengthFieldSize + |
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KPppChapValueSizeFieldSize + |
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KPppChapMinValueSize, |
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User::Leave(KErrUnderflow)); |
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236 |
|
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TUint8 valueSize = *(aPacket.First()->Ptr() + |
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KPppChapCodeFieldSize + |
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KPppChapIdFieldSize + |
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KPppChapLengthFieldSize); |
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241 |
|
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__ASSERT_ALWAYS(valueSize >= KPppChapMinValueSize, |
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User::Leave(KErrUnderflow)); |
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244 |
|
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__ASSERT_ALWAYS(valueSize <= aPacket.Length() - |
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KPppChapCodeFieldSize - |
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KPppChapIdFieldSize - |
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KPppChapLengthFieldSize - |
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KPppChapValueSizeFieldSize, |
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User::Leave(KErrOverflow)); |
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} |
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252 |
|
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253 |
|
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void CPppChap::ProcessChallengePacketL(RMBufPacket& aPacket) |
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/** |
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Processes a CHAP Challenge packet. |
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@param aPacket [in] The CHAP Challenge packet to be processed. |
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@internalComponent |
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*/ |
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260 |
{ |
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CheckChallengePacketL(aPacket); |
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262 |
|
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iChallengePacket.Free(); |
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iChallengePacket.Assign(aPacket); |
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265 |
|
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// go past the CHAP Code field and |
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// read the CHAP Identifier field |
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iCurrentId = *(iChallengePacket.First()->Ptr() |
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+ KPppChapCodeFieldSize); |
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270 |
|
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// Go past the CHAP Code field, the CHAP Identifier field and the CHAP |
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// Length field and read the CHAP Value-Size field. |
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TUint8 valueSize = *(iChallengePacket.First()->Ptr() + |
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KPppChapCodeFieldSize + |
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KPppChapIdFieldSize + |
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KPppChapLengthFieldSize); |
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277 |
|
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// Go past the CHAP Code field, the CHAP Identifier field, the CHAP |
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// Length field and the CHAP Value-Size field and read the CHAP Value |
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// field |
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iChallengeRef.Set(iChallengePacket.First()->Ptr() + |
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KPppChapCodeFieldSize + |
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KPppChapIdFieldSize + |
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KPppChapLengthFieldSize + |
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KPppChapValueSizeFieldSize, |
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valueSize, |
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valueSize); |
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} |
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289 |
|
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290 |
|
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void CPppChap::RespondL() |
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/** |
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Responds to the latest CHAP Challenge received. |
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@internalComponent |
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*/ |
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{ |
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ASSERT(!iChallengePacket.IsEmpty()); |
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ASSERT(IsAuthenticateRequestDone()); |
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|
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MakeResponseL(iCurrentId, |
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iChallengeRef, |
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iResponseValueRef, |
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iResponseNameRef); |
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SendResponseL(iCurrentId, iResponseValueRef, iResponseNameRef); |
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305 |
|
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if (++iResponseRetryCount < KPppChapMaxResponseRetryCount) |
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TimerAfter(KPppChapResponseRetryTimerPeriod* 1000); |
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} |
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309 |
|
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310 |
|
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void CPppChap::MakeResponsePacketLC(TUint8 aIdentifier, |
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const TDesC8& aValue, |
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const TDesC8& aName, |
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RMBufPacket& aPacket) |
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/** |
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Creates a CHAP response Packet. |
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@param aIdentifier [in] The CHAP Response Identifier. |
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@param aValue [in] The CHAP Response Value. |
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@param aName [in] The CHAP Response Name. |
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@param aPacket [out] The CHAP Response packet. |
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@internalComponent |
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*/ |
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323 |
{ |
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ASSERT(aValue.Length() <= KMaxTInt8); |
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ASSERT(aName.Length() <= |
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diff
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|
326 |
KMaxTInt16 - |
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Revision: 201004
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diff
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|
327 |
KPppChapCodeFieldSize - |
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Revision: 201004
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parents:
diff
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|
328 |
KPppChapIdFieldSize - |
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Revision: 201004
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parents:
diff
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|
329 |
KPppChapLengthFieldSize - |
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Revision: 201004
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parents:
diff
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|
330 |
KPppChapValueSizeFieldSize - |
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Revision: 201004
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diff
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|
331 |
aValue.Length()); |
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Revision: 201004
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parents:
diff
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|
332 |
|
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Revision: 201004
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parents:
diff
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|
333 |
TUint16 length = static_cast<TUint16>(KPppChapCodeFieldSize + |
af10295192d8
Revision: 201004
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parents:
diff
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|
334 |
KPppChapIdFieldSize + |
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Revision: 201004
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parents:
diff
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|
335 |
KPppChapLengthFieldSize + |
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Revision: 201004
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parents:
diff
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|
336 |
KPppChapValueSizeFieldSize + |
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Revision: 201004
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parents:
diff
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|
337 |
aValue.Length() + |
af10295192d8
Revision: 201004
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parents:
diff
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|
338 |
aName.Length()); |
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Revision: 201004
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diff
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|
339 |
|
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Revision: 201004
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parents:
diff
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|
340 |
aPacket.AllocL(length); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
341 |
CleanupStack::PushL(aPacket); |
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Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
342 |
RMBufPktInfo* info = aPacket.NewInfoL(); |
af10295192d8
Revision: 201004
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parents:
diff
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|
343 |
|
af10295192d8
Revision: 201004
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diff
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|
344 |
// Construct packet header |
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Revision: 201004
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parents:
diff
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|
345 |
TUint8* ptr = aPacket.First()->Ptr(); |
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Revision: 201004
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parents:
diff
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|
346 |
|
af10295192d8
Revision: 201004
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parents:
diff
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|
347 |
// write the CHAP Code field |
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Revision: 201004
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parents:
diff
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|
348 |
*ptr = KPppChapResponseCode; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
349 |
ptr += KPppChapCodeFieldSize; |
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Revision: 201004
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parents:
diff
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|
350 |
|
af10295192d8
Revision: 201004
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parents:
diff
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|
351 |
// write the CHAP Identifier field |
af10295192d8
Revision: 201004
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parents:
diff
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|
352 |
*ptr = aIdentifier; |
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Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
353 |
ptr += KPppChapIdFieldSize; |
af10295192d8
Revision: 201004
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parents:
diff
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|
354 |
|
af10295192d8
Revision: 201004
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parents:
diff
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|
355 |
// write the CHAP Length field |
af10295192d8
Revision: 201004
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parents:
diff
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|
356 |
BigEndian::Put16(ptr, length); |
af10295192d8
Revision: 201004
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parents:
diff
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|
357 |
ptr += KPppChapLengthFieldSize; |
af10295192d8
Revision: 201004
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parents:
diff
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|
358 |
|
af10295192d8
Revision: 201004
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parents:
diff
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|
359 |
// write the CHAP Value-Size field |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
360 |
*ptr = static_cast<TUint8>(aValue.Length()); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
361 |
ptr += KPppChapValueSizeFieldSize; |
af10295192d8
Revision: 201004
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parents:
diff
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|
362 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
363 |
Mem::Copy(ptr, aValue.Ptr(), aValue.Length()); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
364 |
ptr += aValue.Length(); |
af10295192d8
Revision: 201004
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parents:
diff
changeset
|
365 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
366 |
Mem::Copy(ptr, aName.Ptr(), aName.Length()); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
367 |
ptr += aName.Length(); |
af10295192d8
Revision: 201004
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parents:
diff
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|
368 |
|
af10295192d8
Revision: 201004
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parents:
diff
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|
369 |
info->iLength = length; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
370 |
TPppAddr::Cast((info->iDstAddr)).SetProtocol(KPppIdChap); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
371 |
aPacket.Pack(); |
af10295192d8
Revision: 201004
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parents:
diff
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|
372 |
} |
af10295192d8
Revision: 201004
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parents:
diff
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|
373 |
|
af10295192d8
Revision: 201004
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parents:
diff
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|
374 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
375 |
void CPppChap::SendResponseL(TUint8 aResponseId, |
af10295192d8
Revision: 201004
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parents:
diff
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|
376 |
const TDesC8& aResponseValue, |
af10295192d8
Revision: 201004
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parents:
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|
377 |
const TDesC8& aResponseName) |
af10295192d8
Revision: 201004
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parents:
diff
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|
378 |
/** |
af10295192d8
Revision: 201004
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parents:
diff
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|
379 |
Generates a CHAP Response packet and sends it to the peer. |
af10295192d8
Revision: 201004
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parents:
diff
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|
380 |
@param aResponseId [in] The CHAP Response Identifier. |
af10295192d8
Revision: 201004
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parents:
diff
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|
381 |
@param aResponseValue [in] The CHAP Response Value. |
af10295192d8
Revision: 201004
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parents:
diff
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|
382 |
@param aResponseName [in] The CHAP Response Name. |
af10295192d8
Revision: 201004
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parents:
diff
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|
383 |
@internalComponent |
af10295192d8
Revision: 201004
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parents:
diff
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|
384 |
*/ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
RMBufPacket packet; |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
MakeResponsePacketLC(aResponseId, |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
aResponseValue, |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
aResponseName, |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
packet); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
SendFrame(packet); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
CleanupStack::Pop(); // packet |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
void CPppChap::SuccessL(RMBufPacket& aPacket) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
/** |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
Processes a CHAP Success packet and takes action to complete the |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
authentication. |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
@param aPacket [in] The CHAP Success packet to be processed. |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
@internalComponent |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
*/ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
__ASSERT_ALWAYS(aPacket.Length() >= KPppChapCodeFieldSize + |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
KPppChapIdFieldSize + |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
KPppChapLengthFieldSize, |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
User::Leave(KErrUnderflow)); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
// check the id |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
if (!CheckIdentifier(aPacket)) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
User::Leave(KErrGeneral); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
TimerCancel(); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
DoSucceed(); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
if (iPppLcp->CallbackEnabled() && |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
iPppLcp->CallbackRequestType() != |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
ECallbackIETFRequestTypeMSCBCP) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
iPppLcp->CallbackGrantedAndAuthenticated(); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
420 |
iPppLcp->TerminateLink(MNifIfNotify::ECallBack); |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
} |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
|
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
void CPppChap::FailureL(RMBufPacket& aPacket) |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
/** |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
Processes a CHAP Failure packet and takes action to handle the |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
authentication failure. |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
@param aPacket [in] The CHAP Failure packet to be processed. |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
@internalComponent |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
*/ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
{ |
af10295192d8
Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
__ASSERT_ALWAYS(aPacket.Length() >= KPppChapCodeFieldSize + |
af10295192d8
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KPppChapIdFieldSize + |
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KPppChapLengthFieldSize, |
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User::Leave(KErrUnderflow)); |
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437 |
|
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// check the id |
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if (!CheckIdentifier(aPacket)) |
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User::Leave(KErrGeneral); |
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441 |
|
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TimerCancel(); |
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DoFail(KErrIfAuthenticationFailure); |
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} |
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445 |
|
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446 |
|
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void CPppChap::TimerComplete(TInt /*aStatus*/) |
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448 |
/** |
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Signals that the response retry timer has expired. |
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@param aStatus [in] A status code. |
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@see MTimer::TimerComplete(TInt) |
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@internalComponent |
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453 |
*/ |
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454 |
{ |
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ASSERT(iPppLcp != 0); |
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//ignore Error, if fails it will time out |
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//and try again anyway. |
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TRAP_IGNORE(RetryResponseL()); |
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459 |
} |
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460 |
|
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461 |
|
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void CPppChap::RetryResponseL() |
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463 |
/** |
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Resends the latest CHAP Response sent. |
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465 |
@internalComponent |
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466 |
*/ |
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467 |
{ |
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SendResponseL(iCurrentId, iResponseValueRef, iResponseNameRef); |
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469 |
|
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Revision: 201004
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if (++iResponseRetryCount < KPppChapMaxResponseRetryCount) |
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TimerAfter(KPppChapResponseRetryTimerPeriod* 1000); |
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472 |
} |