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1 // Copyright (c) 2004-2009 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 // DHCPv6/v4 Authentication RFC 3118 |
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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 DHCPAuthentication.h |
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20 */ |
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21 |
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22 #ifndef DHCPAUTHENTICATION_H |
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23 #define DHCPAUTHENTICATION_H |
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24 |
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25 #include <e32base.h> |
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26 #include "DhcpIP6Msg.h" |
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27 //#include "DHCPIP4Msg.h" |
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28 |
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29 /* |
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30 A client MUST be configurable to discard unauthenticated messages, |
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31 and SHOULD be configured by default to discard unauthenticated |
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32 messages if the client has been configured with an authentication key |
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33 or other authentication information. |
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34 */ |
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35 namespace DHCPv4 |
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36 { |
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37 /* 0 1 2 3 |
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38 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
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39 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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40 | Code | Length | Protocol | Algorithm | |
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41 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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42 | RDM | Replay Detection (64 bits) | |
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43 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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44 | Replay cont. | |
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45 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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46 | Replay cont. | | |
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47 +-+-+-+-+-+-+-+-+ | |
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48 | | |
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49 | Authentication Information(depends on the Protocol | |
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50 | | |
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51 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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52 */ |
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53 const TInt KReqMaxRetry = 3; // Max Request retry attempts |
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54 }//DHCPv4 namespace |
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55 |
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56 namespace DHCPv6 |
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57 { |
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58 /* 0 1 2 3 |
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59 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
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60 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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61 | OPTION_AUTH | option-len | |
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62 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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63 | protocol | algorithm | RDM | | |
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64 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
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65 | | |
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66 | replay detection (64 bits) +-+-+-+-+-+-+-+-+ |
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67 | | auth-info | |
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68 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
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69 . authentication information . |
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70 . (variable length) . |
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71 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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72 |
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73 option-code OPTION_AUTH (11) |
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74 |
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75 option-len 11 + length of authentication |
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76 information field |
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77 |
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78 protocol The authentication protocol used in |
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79 this authentication option |
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80 |
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81 algorithm The algorithm used in the |
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82 authentication protocol |
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83 |
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84 RDM The replay detection method used in |
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85 this authentication option |
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86 |
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87 Replay detection The replay detection information for |
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88 the RDM |
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89 |
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90 authentication information The authentication information, |
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91 as specified by the protocol and |
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92 algorithm used in this authentication |
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93 option |
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94 */ |
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95 const TInt KOptionAuthProtocolLength = 1; //(1 bytes) |
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96 const TInt KOptionAuthAlgorithmLength = 1; //(1 bytes) |
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97 const TInt KOptionAuthRDMLength = 1; //(1 bytes) |
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98 const TInt KOptionAuthRDMdataLength = 8; //(8 bytes) |
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99 |
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100 class TInterfaceConfigInfo; |
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101 class CDHCPOptionAuthentication : public CDHCPOptionAny |
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102 /** |
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103 * DHCP Authentication option |
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104 * |
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105 * @internalTechnology |
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106 */ |
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107 { |
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108 |
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109 public: |
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110 CDHCPOptionAuthentication() : |
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111 CDHCPOptionAny( &iProtocol ), |
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112 iProtocol( &iAlgorithm, KOptionAuthProtocolLength ), |
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113 iAlgorithm( &iRDM, KOptionAuthAlgorithmLength ), |
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114 iRDM( &iRDMdata, KOptionAuthRDMLength ), |
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115 iRDMdata( NULL, KOptionAuthRDMdataLength ) |
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116 { |
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117 } |
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118 |
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119 static COptionNode* NewL(); |
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120 |
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121 void CheckL( const TInterfaceConfigInfo& aInterfaceConfigInfo ); |
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122 void InitL( const TInterfaceConfigInfo& aInterfaceConfigInfo ); |
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123 |
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124 public: |
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125 CConstItem iProtocol; |
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126 CConstItem iAlgorithm; |
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127 CConstItem iRDM; |
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128 CConstItem iRDMdata; |
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129 //trailing authentication data is in CDHCPOptionAny::iOptionData |
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130 }; |
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131 |
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132 }//DHCPv6 namespace |
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133 |
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134 #endif |
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135 |