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1 // Copyright (c) 1997-2009 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 // |
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15 |
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16 #include <es_sock.h> |
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17 #include "CS_STD.H" |
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18 #include <comms-infras/sockmes.h> |
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19 #include "es_flog.h" |
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20 |
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21 EXPORT_C TInt RHostResolver::Open(RSocketServ &aSocketServer,TUint anAddrFamily,TUint aProtocol) |
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22 // |
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23 // set up the sub session |
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24 // |
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25 /** Initialises a name resolution service provided by a particular protocol. |
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26 |
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27 This must be called before other object functions are used. |
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28 |
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29 @param aSocketServer The socket server session |
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30 @param anAddrFamily A constant identifying the protocol family |
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31 @param aProtocol A constant that identifies the protocol that provides the |
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32 name resolution service |
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33 @return KErrNone if successful otherwise another of the system-wide error codes. */ |
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34 { |
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35 RSessionBase &s=aSocketServer; |
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36 LOG( ESockLog::Printf(_L8("RHostResolver %08x:\tOpen() tid %d"), this, (TUint)RThread().Id())); |
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37 return CreateSubSession(s,EHRCreate,TIpcArgs(anAddrFamily,aProtocol)); |
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38 } |
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39 |
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40 EXPORT_C TInt RHostResolver::Open(RSocketServ &aSocketServer,TUint anAddrFamily,TUint aProtocol,RConnection& aConnection) |
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41 /** Initialises a name resolution service provided by a particular protocol, and associates the service with the same |
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42 interface as an existing RConnection instance. |
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43 |
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44 This must be called before other object functions are used. |
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45 |
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46 Note that the association is instantaneous, in that the Host Resolver is associated with the |
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47 interface that the RConnection is associated with at the present time. This association |
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48 terminates when the underlying interface goes down. |
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49 |
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50 @param aServer The socket server session. |
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51 @param anAddrFamily A constant identifying the protocol family. |
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52 @param aProtocol A constant that identifies the protocol that provides the name resolution service. |
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53 @param aConnection Existing RConnection whose interface this Host Resolver will be associated with. |
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54 @return KErrNone if successful otherwise another of the system-wide error codes. |
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55 */ |
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56 { |
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57 // passing an RConnection which doesn't belong to the same session is a serious programming error, hence panic. |
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58 if (!aConnection.SameSession(aSocketServer.Handle())) |
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59 Panic(EBadRConnection); |
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60 |
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61 RSessionBase &s=aSocketServer; |
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62 LOG( ESockLog::Printf(_L8("RHostResolver %08x:\tOpen(RConnection %08x) tid %d"), this, &aConnection, (TUint)RThread().Id())); |
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63 return CreateSubSession(s,EHRCreateWithConnection,TIpcArgs(anAddrFamily, aProtocol, aConnection.SubSessionHandle())); |
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64 } |
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65 |
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66 EXPORT_C void RHostResolver::GetByName(const TDesC &aName,TNameEntry &aResult,TRequestStatus &aStatus) |
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67 // |
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68 // Get a host by name |
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69 // |
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70 /** Resolves a machine name to a TSockAddress asynchronously. |
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71 |
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72 The server will fill in the supplied TNameEntry. |
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73 |
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74 @param aName The name to resolve. The format of the name and any wild-cards |
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75 supported, along with any separators in hierarchical name systems, are protocol |
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76 specific |
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77 @param aResult On return, the result of the name resolution. If more than one |
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78 result is allowed by the protocol, the client can call Next() to find any |
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79 further results. |
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80 @param aStatus Indicates asynchronous operation and, on completion, contains |
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81 an error code: see the system-wide error codes. */ |
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82 { |
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83 LOG |
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84 ( |
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85 const TInt KBufSize = 32; |
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86 TPtrC limitedName(aName.Ptr(), aName.Length() > KBufSize ? KBufSize : aName.Length()); |
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87 TBuf8<KBufSize> name; |
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88 name.Copy(limitedName); |
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89 |
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90 ESockLog::Printf(_L8("RHostResolver %08x:\tGetByName(\"%S\") tid %d"), this, &name, (TUint)RThread().Id()); |
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91 ); |
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92 SendReceive(EHRGetByName,TIpcArgs(&aName,&aResult),aStatus); |
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93 } |
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94 |
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95 EXPORT_C TInt RHostResolver::GetByName(const TDesC &aName,TNameEntry &aResult) |
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96 // |
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97 // Get a host by name |
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98 // |
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99 /** Resolves a machine name to a TSockAddress. |
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100 |
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101 The server will fill in the supplied TNameEntry. |
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102 |
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103 @param aName The name to resolve. The format of the name and any wild-cards |
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104 supported, along with any separators in hierarchical name systems, are protocol |
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105 specific |
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106 @param aResult On return, the result of the name resolution. If more than one |
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107 result is allowed by the protocol, the client can call Next() to find any |
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108 further results. |
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109 @return KErrNone if successful otherwise another of the system-wide error codes. |
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110 @capability Dependent on the type of connection so deferred to PRT */ |
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111 { |
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112 |
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113 TRequestStatus stat; |
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114 GetByName(aName,aResult,stat); |
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115 User::WaitForRequest(stat); |
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116 return stat.Int(); |
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117 } |
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118 |
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119 EXPORT_C void RHostResolver::Next(TNameEntry &aResult,TRequestStatus &aStatus) |
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120 /** |
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121 Get the next response if there is more than one response for a given host name (alias list) |
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122 |
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123 Returns the next answer asynchronously, where there is more than one response |
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124 for a given host name. |
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125 |
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126 For some protocols, GetByName() and GetByAddress() may find more than one answer, |
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127 for example if aliases are allowed. |
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128 |
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129 @param aResult Returns the next result of the name resolution. |
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130 @param aStatus Indicates asynchronous operation and on completion contains |
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131 an error code: see the system-wide error codes. */ |
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132 { |
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133 SendReceive(EHRNext,TIpcArgs(0,&aResult),aStatus); //Question - is the change is right? |
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134 } |
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135 |
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136 EXPORT_C TInt RHostResolver::Next(TNameEntry &aResult) |
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137 /** |
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138 Get the next response if there is more than one response for a given host name (alias list) |
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139 |
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140 |
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141 |
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142 Returns the next answer where there is more than one response for a given host name. |
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143 |
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144 For some protocols, GetByName() and GetByAddress() may find more than one answer, |
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145 for example if aliases are allowed. |
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146 |
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147 @param aResult Returns the next result of the name resolution. |
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148 @return KErrNone if successful otherwise another of the system-wide error codes. */ |
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149 { |
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150 |
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151 TRequestStatus stat; |
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152 Next(aResult,stat); |
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153 User::WaitForRequest(stat); |
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154 return stat.Int(); |
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155 } |
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156 |
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157 EXPORT_C void RHostResolver::GetByAddress(const TSockAddr &anAddr,TNameEntry &aResult,TRequestStatus &aStatus) |
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158 /** |
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159 Get host by address (as get by name) |
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160 |
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161 Gets the name of a host from its address asynchronously |
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162 |
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163 |
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164 @param anAddr The address to use |
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165 @param aResult On return, the result of the query. If more than one result |
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166 is allowed by the protocol, the client can call Next() to find any further |
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167 results. |
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168 @param aStatus Indicates asynchronous operation and on completion contains |
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169 an error code: see the system-wide error codes. |
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170 @capability Dependent on the type of connection so deferred to PRT */ |
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171 { |
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172 SendReceive(EHRGetByAddress,TIpcArgs(&anAddr,&aResult),aStatus); |
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173 } |
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174 |
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175 EXPORT_C TInt RHostResolver::GetByAddress(const TSockAddr &anAddr,TNameEntry &aResult) |
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176 /** |
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177 Get host by address (as get by name) |
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178 |
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179 Gets the name of a host from its address |
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180 |
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181 @param anAddr The address to use |
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182 @param aResult Returns the result of the query. If more than one result is |
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183 allowed by the protocol, the client can call Next() to find any further results. |
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184 |
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185 @return KErrNone if successful otherwise another of the system-wide error codes. |
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186 @capability Dependent on the type of connection so deferred to PRT */ |
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187 { |
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188 |
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189 TRequestStatus stat; |
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190 GetByAddress(anAddr,aResult,stat); |
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191 User::WaitForRequest(stat); |
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192 return stat.Int(); |
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193 } |
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194 |
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195 EXPORT_C TInt RHostResolver::GetHostName(TDes &aName) |
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196 /** |
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197 |
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198 |
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199 Gets the name of the local host. |
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200 |
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201 Note that with some protocols the name of the local host is not necessarily |
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202 known at all times. In some cases, a preceding call to SetHostName() must |
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203 have been made. |
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204 |
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205 @param aName Returns the result of the query. The buffer passed in should |
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206 have a minimum length of 256 characters, otherwise a panic may occur: you |
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207 can use a parameter of the THostName type. |
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208 @return KErrNone if successful otherwise another of the system-wide error codes. |
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209 @capability Dependent on the type of connection so deferred to PRT */ |
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210 { |
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211 return SendReceive(EHRGetHostName,TIpcArgs(&aName)); |
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212 } |
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213 |
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214 EXPORT_C void RHostResolver::GetHostName(TDes &aName,TRequestStatus &aStatus) |
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215 /** Gets the name of the local host asynchronously. |
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216 |
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217 Note that with some protocols the name of the local host is not necessarily |
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218 known at all times. In some cases, a preceding call to SetHostName() must |
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219 have been made. |
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220 |
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221 @param aName Returns the result of the query. The buffer passed in should |
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222 have a minimum length of 256 characters, otherwise a panic may occur: you |
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223 can use a parameter of the THostName type. |
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224 @param aStatus Indicates asynchronous operation and on completion contains |
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225 an error code: see the system-wide error codes. |
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226 @capability Dependent on the type of connection so deferred to PRT */ |
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227 { |
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228 SendReceive(EHRGetHostName,TIpcArgs(&aName),aStatus); |
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229 } |
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230 |
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231 EXPORT_C TInt RHostResolver::SetHostName(const TDesC &aName) |
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232 /** Sets the name of the local host. |
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233 @param aName The local host name. |
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234 @return KErrNone if successful, otherwise another of the system-wide |
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235 error codes. |
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236 @capability NetworkControl Service restricting and stored at protocol level |
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237 */ |
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238 { |
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239 return SendReceive(EHRSetHostName,TIpcArgs(&aName)); |
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240 } |
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241 |
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242 |
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243 EXPORT_C TInt RHostResolver::SetOpt(TUint anOptionName,TUint anOptionLevel,const TDesC8& anOption) |
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244 { |
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245 LOG( ESockLog::Printf(_L8("RHostResolver %08x:\tSetOpt() tid %d"), this, (TUint)RThread().Id())); |
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246 return SendReceive(EHRSetOpt,TIpcArgs(anOptionName,&anOption,anOptionLevel)); |
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247 } |
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248 |
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249 |
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250 EXPORT_C void RHostResolver::Cancel() |
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251 /** Cancels any outstanding asynchronous calls, which will return with error code |
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252 KErrCancel. */ |
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253 { |
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254 SendReceive(EHRCancel,TIpcArgs()); |
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255 } |
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256 |
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257 EXPORT_C void RHostResolver::Close() |
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258 /** |
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259 |
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260 |
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261 Closes a name resolution service. If a service has been opened using Open(), |
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262 then it should be closed using Close(). This will ensure all associated resources |
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263 are released. */ |
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264 { |
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265 LOG( ESockLog::Printf(_L8("RHostResolver %08x:\tClose() tid %d"), this, (TUint)RThread().Id())); |
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266 |
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267 CloseSubSession(EHRClose); |
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268 } |
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269 |
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270 |
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271 |
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272 EXPORT_C void RHostResolver::Query(const TDesC8& aQuery, TDes8& aResult, TRequestStatus& aStatus) |
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273 /** |
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274 * Protocol - independent query. Asynchronous version. |
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275 * |
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276 * @param aQuery contains query data. The concrete type of the data depends on protocol. |
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277 * e.g. for tcpip it will imply DNS query. |
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278 * @param aResult Descriptor that will receive data. The concrete meaning of this data depends on protocol. |
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279 * @param aStatus indicates asynchronous operation, on completion contains a system-wide error code |
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280 * @capability Dependent on the type of connection so deferred to PRT |
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281 */ |
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282 { |
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283 LOG( ESockLog::Printf(_L8("RHostResolver %08x:\tQuery() tid %d"), this, (TUint)RThread().Id())); |
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284 |
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285 SendReceive(EHrQuery,TIpcArgs(&aQuery, &aResult),aStatus); |
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286 } |
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287 |
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288 EXPORT_C TInt RHostResolver::Query(const TDesC8& aQuery, TDes8& aResult) |
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289 /** |
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290 |
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291 Protocol - independent query. Synchronous version. |
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292 |
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293 @param aQuery contains query data. The concrete type of the data depends on protocol. |
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294 e.g. for tcpip it will imply DNS query. |
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295 @param aResult Descriptor that will receive data. The concrete meaning of this data depends on protocol. |
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296 @return system-wide error code. |
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297 @capability Dependent on the type of connection so deferred to PRT |
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298 */ |
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299 { |
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300 TRequestStatus stat; |
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301 Query(aQuery,aResult,stat); |
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302 User::WaitForRequest(stat); |
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303 |
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304 return stat.Int(); |
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305 } |
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306 |
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307 EXPORT_C void RHostResolver::QueryGetNext(TDes8& aResult, TRequestStatus& aStatus) |
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308 /** |
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309 |
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310 Get the next query result. For some queries there can be more than one results. Asynchronous version. |
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311 |
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312 @param aResult Descriptor that will receive data. The concrete meaning of this data depends on protocol. |
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313 @param aStatus indicates asynchronous operation, on completion contains a system-wide error code. |
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314 In particular KErrNotFound means that there is no more information from resolver. |
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315 */ |
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316 { |
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317 LOG( ESockLog::Printf(_L8("RHostResolver %08x:\tQueryGetNext() tid %d"), this, (TUint)RThread().Id())); |
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318 |
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319 SendReceive(EHrQueryNext,TIpcArgs(&aResult),aStatus); |
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320 |
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321 } |
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322 |
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323 EXPORT_C TInt RHostResolver::QueryGetNext(TDes8& aResult) |
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324 /** |
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325 |
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326 Get the next query result. For some queries there can be more than one results. Synchronous version. |
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327 |
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328 @param aResult Descriptor that will receive data. The concrete meaning of this data depends on protocol. |
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329 @return system-wide error code. In particular KErrNotFound means that there is no more information from resolver. |
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330 */ |
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331 { |
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332 TRequestStatus stat; |
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333 QueryGetNext(aResult,stat); |
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334 User::WaitForRequest(stat); |
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335 |
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336 return stat.Int(); |
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337 } |
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338 |
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339 EXPORT_C TInt RServiceResolver::Open(RSocketServ &aSocketServer,TUint anAddrFamily,TUint aSocketType,TUint aProtocol) |
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340 /** |
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341 set up the sub session - unlike name resolvers and net databases, services can be socket type specific. |
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342 Opens a service resolver service. |
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343 |
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344 Unlike name resolvers (RHostResolver) and net databases (RNetDatabase), services can be socket type specific. |
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345 |
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346 @param aSocketServer The socket server session. |
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347 @param anAddrFamily A constant identifying the protocol family. |
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348 @param aSocketType A constant that identifies the socket type. |
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349 @param aProtocol A constant that identifies the protocol that provides the |
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350 service. |
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351 @return KErrNone if successful otherwise another of the system-wide error codes. */ |
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352 { |
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353 RSessionBase &s=aSocketServer; |
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354 return CreateSubSession(s,ESRCreate,TIpcArgs(anAddrFamily,aSocketType,aProtocol)); |
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355 } |
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356 |
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357 EXPORT_C void RServiceResolver::GetByName(const TDesC &aName,TPortNum &aPort,TRequestStatus &aStatus) |
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358 /** Gets a service by name asynchronously. |
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359 |
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360 @param aName Name of the service to get. |
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361 @param aPort On completion, the port associated with the service. |
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362 @param aStatus On completion, KErrNone if successful otherwise another of the |
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363 system-wide error codes. */ |
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364 { |
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365 SendReceive(ESRGetByName,TIpcArgs(&aName,&aPort),aStatus); |
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366 } |
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367 |
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368 EXPORT_C TInt RServiceResolver::GetByName(const TDesC &aName,TPortNum &aPort) |
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369 /** |
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370 Get a service by name. |
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371 |
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372 @param aName Name of the service to get. |
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373 @param aPort On return, the port associated with the service. |
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374 @return KErrNone if successful otherwise another of the system-wide error codes. */ |
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375 { |
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376 |
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377 TRequestStatus stat; |
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378 GetByName(aName,aPort,stat); |
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379 User::WaitForRequest(stat); |
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380 return stat.Int(); |
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381 } |
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382 |
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383 EXPORT_C void RServiceResolver::GetByNumber(const TUint aPort,TDes &aName,TRequestStatus &aStatus) |
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384 /** Gets the name of the service asynchronously. |
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385 |
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386 @param aPort Port of the service. |
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387 @param aName On completion, the name of the service. |
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388 @param aStatus On completion, KErrNone if successful otherwise another of the |
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389 system-wide error codes. */ |
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390 { |
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391 SendReceive(ESRGetByNumber,TIpcArgs(&aName,aPort),aStatus); |
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392 } |
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393 |
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394 EXPORT_C TInt RServiceResolver::GetByNumber(const TUint aPort,TDes &aName) |
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395 /** Gets the name of the service |
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396 |
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397 @param aPort Port of the service. |
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398 @param aName On return, the name of the service. |
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399 @return KErrNone if successful otherwise another of the system-wide error codes. */ |
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400 { |
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401 |
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402 TRequestStatus stat; |
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403 GetByNumber(aPort,aName,stat); |
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404 User::WaitForRequest(stat); |
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405 return stat.Int(); |
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406 } |
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407 |
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408 EXPORT_C void RServiceResolver::RegisterService(const TDesC &aName,const TUint &aPort,TRequestStatus &aStatus) |
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409 /** Registers a new service asynchronously. |
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410 |
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411 @param aName Name of the service. |
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412 @param aPort Port of the service. |
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413 @param aStatus On completion, KErrNone if successful otherwise another of the |
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414 system-wide error codes. |
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415 @capability NetworkControl To protect against dangerous new services being added, which may steal legimate services resources */ |
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416 { |
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417 SendReceive(ESRRegisterService,TIpcArgs(&aName,aPort),aStatus); |
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418 } |
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419 |
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420 EXPORT_C TInt RServiceResolver::RegisterService(const TDesC &aName,const TUint &aPort) |
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421 /** Registers a new service. |
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422 |
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423 @param aName Name of the service. |
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424 @param aPort Port of the service. |
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425 @return KErrNone if successful, otherwise another of the system-wide error codes. |
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426 @capability NetworkControl To protect against dangerous new services being added, which may steal legimate services resources */ |
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427 { |
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428 |
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429 TRequestStatus stat; |
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430 RegisterService(aName,aPort,stat); |
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431 User::WaitForRequest(stat); |
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432 return stat.Int(); |
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433 } |
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434 |
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435 EXPORT_C void RServiceResolver::RemoveService(const TDesC &aName,const TUint &aPort,TRequestStatus &aStatus) |
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436 /** Removes a service asynchronously. |
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437 |
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438 @param aName Name of the service to remove. |
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439 @param aPort Port of the service to remove. |
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440 @param aStatus On completion, KErrNone if successful otherwise another of the |
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441 system-wide error codes. |
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442 @capability NetworkControl Ensure that only privileged apps can remove information from the service resolver */ |
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443 { |
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444 SendReceive(ESRRemoveService,TIpcArgs(&aName,aPort),aStatus); |
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445 } |
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446 |
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447 |
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448 EXPORT_C TInt RServiceResolver::RemoveService(const TDesC &aName,const TUint &aPort) |
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449 /** Removes a service. |
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450 |
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451 @param aName Name of the service. |
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452 @param aPort Port of the service. |
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453 @return KErrNone if successful otherwise another of the system-wide error codes. |
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454 @capability NetworkControl Ensure that only privileged apps can remove information from the service resolver */ |
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455 { |
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456 |
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457 TRequestStatus stat; |
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458 RemoveService(aName,aPort,stat); |
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459 User::WaitForRequest(stat); |
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460 return stat.Int(); |
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461 } |
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462 |
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463 EXPORT_C void RServiceResolver::Cancel() |
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464 /** Cancels any pending request. */ |
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465 { |
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466 SendReceive(ESRCancel,TIpcArgs()); |
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467 } |
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468 |
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469 EXPORT_C void RServiceResolver::Close() |
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470 /** |
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471 Closes a service resolver service |
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472 |
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473 If a service has been opened using Open(), |
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474 then it should be closed using Close(). This will ensure all associated resources |
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475 are released. */ |
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476 { |
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477 |
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478 CloseSubSession(ESRClose); |
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479 } |
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480 |
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481 EXPORT_C TInt RNetDatabase::Open(RSocketServ &aSocketServer,TUint anAddrFamily,TUint aProtocol) |
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482 // |
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483 // set up the sub session |
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484 // |
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485 /** Initialises a database access service provided by a particular protocol. It |
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486 must be called before other object functions are used. |
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487 |
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488 @param aSocketServer The socket server session |
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489 @param anAddrFamily A constant identifying the protocol family |
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490 @param aProtocol A constant that identifies the protocol that provides the |
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491 database access service |
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492 @return KErrNone if successful otherwise another of the system-wide error codes. */ |
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493 { |
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494 RSessionBase &s=aSocketServer; |
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495 return CreateSubSession(s,ENDCreate,TIpcArgs(anAddrFamily,aProtocol)); |
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496 } |
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497 |
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498 EXPORT_C void RNetDatabase::Query(const TDesC8 &aQuery,TDes8 &aResult,TRequestStatus &aStat) |
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499 /** Makes a query to the database asynchronously. |
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500 |
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501 @param aQuery The query to perform |
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502 @param aResult The result of the query |
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503 @param aStat Indicates asynchronous operation and on completion contains an |
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504 error code: see the system-wide error codes. |
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505 @capability Dependent on the type of connection so deferred to PRT */ |
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506 { |
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507 SendReceive(ENDQuery,TIpcArgs(&aQuery,Max(aQuery.Length(),aResult.Length()),&aResult),aStat); |
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508 } |
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509 |
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510 EXPORT_C TInt RNetDatabase::Query(const TDesC8 &aQuery,TDes8 &aResult) |
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511 // |
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512 // unfortunately this API must be so general. |
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513 // |
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514 /** Makes a query to the database. |
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515 |
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516 @param aQuery The query to perform |
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517 @param aResult The result of the query |
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518 @return KErrNone if successful otherwise another of the system-wide error codes. |
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519 @capability Dependent on the type of connection so deferred to PRT */ |
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520 { |
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521 |
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522 TRequestStatus stat; |
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523 Query(aQuery,aResult,stat); |
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524 User::WaitForRequest(stat); |
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525 return stat.Int(); |
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526 } |
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527 |
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528 EXPORT_C void RNetDatabase::Add(const TDesC8& anItem,TRequestStatus& aStat) |
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529 /** Adds a record to the database asynchronously. |
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530 |
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531 @param anItem The record to add |
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532 @param aStat Indicates asynchronous operation and on completion contains an |
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533 error code: see the system-wide error codes. |
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534 @capability Dependent on the type of connection so deferred to PRT */ |
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535 { |
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536 SendReceive(ENDAdd,TIpcArgs(&anItem,anItem.Length()),aStat); |
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537 } |
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538 |
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539 EXPORT_C TInt RNetDatabase::Add(const TDesC8& anItem) |
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540 /** Adds a record to the database. |
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541 |
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542 @param anItem The record to add |
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543 @return KErrNone if successful otherwise another of the system-wide error codes. |
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544 @capability Dependent on the type of connection so deferred to PRT */ |
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545 { |
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546 TRequestStatus stat; |
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547 Add(anItem,stat); |
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548 User::WaitForRequest(stat); |
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549 return stat.Int(); |
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550 } |
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551 |
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552 EXPORT_C void RNetDatabase::Remove(const TDesC8& anItem,TRequestStatus& aStat) |
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553 /** Removes a record from the database asynchronously. |
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554 |
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555 @param anItem The record to remove |
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556 @param aStat Indicates asynchronous operation and on completion contains an |
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557 error code: see the system-wide error codes. |
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558 @capability Dependent on the type of connection so deferred to PRT */ |
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559 { |
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560 SendReceive(ENDRemove,TIpcArgs(&anItem,anItem.Length()),aStat); |
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561 } |
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562 |
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563 EXPORT_C TInt RNetDatabase::Remove(const TDesC8& anItem) |
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564 /** Removes a record from the database. |
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565 |
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566 @param anItem The record to remove |
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567 @return KErrNone if successful otherwise another of the system-wide error codes. |
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568 @capability Dependent on the type of connection so deferred to PRT */ |
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569 { |
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570 TRequestStatus stat; |
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571 Remove(anItem,stat); |
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572 User::WaitForRequest(stat); |
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573 return stat.Int(); |
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574 } |
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575 |
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576 EXPORT_C void RNetDatabase::Cancel() |
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577 /** Cancels any outstanding asynchronous calls, which will return with error code |
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578 KErrCancel. */ |
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579 { |
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580 SendReceive(ENDCancel,TIpcArgs()); |
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581 } |
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582 |
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583 EXPORT_C void RNetDatabase::Close() |
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584 /** Closes a database access service. If a service has been opened using Open(), |
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585 then it should be closed using Close(). This will ensure all associated resources |
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586 are released. */ |
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587 { |
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588 CloseSubSession(ENDClose); |
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589 } |
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590 |