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1 // Copyright (c) 2003-2009 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 // Authentication Protocol with MD5 (CHAP with MD5) - RFC 1994. |
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15 // |
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16 // |
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17 |
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18 /** |
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19 @file |
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20 @brief Source file for the implementation of PPP Challenge Handshake |
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21 @internalComponent |
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22 */ |
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23 |
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24 #include "chapmd5.h" |
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25 // use CMD5 |
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26 #include <hash.h> |
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27 #include "PPPConfig.h" |
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28 |
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29 CPppChapMd5::CPppChapMd5() |
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30 /** |
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31 Constructor. |
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32 @internalComponent |
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33 */ |
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34 { |
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35 } |
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36 |
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37 CPppChapMd5::~CPppChapMd5() |
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38 /** |
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39 Destructor. |
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40 @internalComponent |
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41 */ |
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42 { |
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43 #ifdef _UNICODE |
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44 delete iUserName; |
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45 #endif |
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46 |
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47 delete iMd5; |
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48 } |
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49 |
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50 |
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51 void CPppChapMd5::InitL(CPppLcp* aLcp) |
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52 /** |
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53 @copydoc CPppChap::InitL(CPppLcp*) |
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54 @see CPppChap::InitL(CPppLcp*) |
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55 @internalComponent |
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56 */ |
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57 { |
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58 CPppChap::InitL(aLcp); |
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59 iMd5 = CMD5::NewL(); |
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60 } |
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61 |
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62 |
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63 void CPppChapMd5::MakeResponseL(TUint8 /*aChallengeId*/, |
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64 const TDesC8& aChallengeValue, |
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65 TPtrC8& aResponseValue, |
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66 TPtrC8& aResponseName) |
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67 /** |
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68 @copydoc CPppChap::MakeResponseL(TUint8, const TDesC8&, TPtrC8&, |
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69 TPtrC8&) |
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70 @see CPppChap::MakeResponseL(TUint8, const TDesC8&, TPtrC8&, |
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71 TPtrC8&) |
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72 @internalComponent |
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73 */ |
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74 { |
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75 ASSERT(aChallengeValue.Length() >= KPppChapMinValueSize); |
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76 |
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77 const CCredentialsConfig* credentials = iPppLcp->GetCredentials(); |
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78 const TDesC& username = credentials->GetUserName(); |
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79 |
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80 __ASSERT_ALWAYS(username.Length() <= |
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81 KMaxTInt16 - |
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82 KPppChapCodeFieldSize - |
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83 KPppChapIdFieldSize - |
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84 KPppChapLengthFieldSize - |
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85 KPppChapValueSizeFieldSize - |
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86 aResponseValue.Length(), |
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87 User::Leave(KErrTooBig)); |
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88 |
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89 #ifdef _UNICODE |
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90 delete iUserName; |
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91 iUserName=0; |
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92 iUserName = HBufC8::NewL(username.Length()); |
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93 iUserName->Des().Copy(username); |
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94 aResponseName.Set(*iUserName); |
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95 |
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96 const TDesC& pwd=credentials->GetPassword(); |
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97 HBufC8& password = *HBufC8::NewLC(pwd.Length()); |
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98 password.Des().Copy(pwd); |
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99 #else //! _UNICODE |
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100 aResponseName.Set(username); |
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101 const TDesC& password = credentials->GetPassword(); |
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102 #endif //! _UNICODE |
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103 |
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104 iMd5->Update(TPtrC8(&iCurrentId, KPppChapIdFieldSize)); |
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105 iMd5->Update(password); |
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106 aResponseValue.Set(iMd5->Final(aChallengeValue)); |
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107 |
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108 #ifdef _UNICODE |
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109 CleanupStack::PopAndDestroy(&password); |
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110 #endif // _UNICODE |
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111 |
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112 ASSERT(aResponseValue.Length() == KPppChapMd5ValueSize); |
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113 ASSERT(aResponseName.Length() >= KPppChapMinNameSize && |
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114 aResponseName.Length() <= |
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115 KMaxTInt16 - |
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116 KPppChapCodeFieldSize - |
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117 KPppChapIdFieldSize - |
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118 KPppChapLengthFieldSize - |
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119 KPppChapValueSizeFieldSize - |
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120 aResponseValue.Length()); |
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121 } |