1 /** @file 2 Display the DHCP options 3 4 Copyright (c) 2011 - 2012, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license. 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 **/ 13 #include <WebServer.h> 14 #include <Guid/DxeServices.h> 15 #include <Pi/PiDxeCis.h> 16 17 #include <Protocol/Dhcp4.h> 18 #include <Protocol/ServiceBinding.h> 19 20 /** 21 Respond with the DHCP options 22 23 @param[in] SocketFD The socket's file descriptor to add to the list. 24 @param[in] pPort The WSDT_PORT structure address 25 @param[out] pbDone Address to receive the request completion status 26 27 @retval EFI_SUCCESS The request was successfully processed 28 29 **/ 30 EFI_STATUS 31 DhcpOptionsPage ( 32 IN int SocketFD, 33 IN WSDT_PORT * pPort, 34 OUT BOOLEAN * pbDone 35 ) 36 { 37 // EFI_HANDLE Dhcp4Handle; 38 EFI_DHCP4_MODE_DATA Dhcp4Mode; 39 UINTN HandleCount; 40 EFI_DHCP4_PROTOCOL * pDhcp4; 41 EFI_DHCP4_PACKET * pDhcp4Packet; 42 EFI_HANDLE * pEnd; 43 EFI_HANDLE * pHandle; 44 // EFI_SERVICE_BINDING_PROTOCOL * pService; 45 EFI_STATUS Status; 46 47 DBG_ENTER ( ); 48 49 // 50 // Send the DHCP options 51 // 52 for ( ; ; ) { 53 // 54 // Send the page header 55 // 56 Status = HttpPageHeader ( SocketFD, pPort, L"DHCP Options" ); 57 if ( EFI_ERROR ( Status )) { 58 break; 59 } 60 61 // 62 // Build the header 63 // 64 Status = HttpSendAnsiString ( SocketFD, 65 pPort, 66 "<h1>" ); 67 if ( EFI_ERROR ( Status )) { 68 break; 69 } 70 Status = HttpSendUnicodeString ( SocketFD, 71 pPort, 72 L"DHCP Options" ); 73 if ( EFI_ERROR ( Status )) { 74 break; 75 } 76 Status = HttpSendAnsiString ( SocketFD, 77 pPort, 78 "</h1>\r\n" ); 79 if ( EFI_ERROR ( Status )) { 80 break; 81 } 82 83 // 84 // Attempt to locate DHCP clients 85 // 86 Status = gBS->LocateHandleBuffer ( ByProtocol, 87 // &gEfiDhcp4ServiceBindingProtocolGuid, 88 &gEfiDhcp4ProtocolGuid, 89 NULL, 90 &HandleCount, 91 &pHandle ); 92 if ( EFI_ERROR ( Status )) { 93 Status = HttpSendAnsiString ( SocketFD, 94 pPort, 95 "DHCP not in use" ); 96 if ( EFI_ERROR ( Status )) { 97 break; 98 } 99 } 100 else { 101 // 102 // Walk the list of handles 103 // 104 pEnd = &pHandle [ HandleCount ]; 105 while ( pEnd > pHandle ) { 106 /* 107 // 108 // Get the DHCP service binding 109 // 110 Status = gBS->OpenProtocol ( *pHandle, 111 &gEfiDhcp4ServiceBindingProtocolGuid, 112 &pService, 113 NULL, 114 gImageHandle, 115 EFI_OPEN_PROTOCOL_GET_PROTOCOL ); 116 if ( EFI_ERROR ( Status )) { 117 Status = HttpSendAnsiString ( SocketFD, 118 pPort, 119 "Failed to open gEfiDhcp4ServiceBindingProtocolGuid" ); 120 break; 121 } 122 123 // 124 // Get the DHCP handle 125 // 126 Status = pService->CreateChild ( pService, 127 &Dhcp4Handle ); 128 if ( EFI_ERROR ( Status )) { 129 Status = HttpSendAnsiString ( SocketFD, 130 pPort, 131 "Failed to create DHCP4 child" ); 132 } 133 else { 134 */ 135 // 136 // Get the DHCP protocol 137 // 138 Status = gBS->OpenProtocol ( *pHandle, 139 // Dhcp4Handle, 140 &gEfiDhcp4ProtocolGuid, 141 (VOID **)&pDhcp4, 142 NULL, 143 gImageHandle, 144 EFI_OPEN_PROTOCOL_GET_PROTOCOL ); 145 if ( EFI_ERROR ( Status )) { 146 Status = HttpSendAnsiString ( SocketFD, 147 pPort, 148 "Failed to open gEfiDhcp4ProtocolGuid" ); 149 } 150 else { 151 // 152 // Get the DHCP packet 153 // 154 Status = pDhcp4->GetModeData ( pDhcp4, 155 &Dhcp4Mode ); 156 if ( EFI_ERROR ( Status )) { 157 Status = HttpSendAnsiString ( SocketFD, 158 pPort, 159 "Failed to get DHCP4 mode" ); 160 } 161 else { 162 // 163 // Get the last packet 164 // 165 pDhcp4Packet = Dhcp4Mode.ReplyPacket; 166 if ( NULL == pDhcp4Packet ) { 167 Status = HttpSendAnsiString ( SocketFD, 168 pPort, 169 "No DHCP reply received!<br/>DHCP Mode:<br/>" ); 170 if ( EFI_ERROR ( Status )) { 171 break; 172 } 173 174 // 175 // Display the DHCP mode data 176 // 177 Status = HttpSendDump ( SocketFD, 178 pPort, 179 sizeof ( Dhcp4Mode ), 180 (UINT8 *)&Dhcp4Mode ); 181 } 182 else { 183 // 184 // Display the DHCP packet 185 // 186 Status = HttpSendDump ( SocketFD, 187 pPort, 188 pDhcp4Packet->Length, 189 (UINT8 *)&pDhcp4Packet->Dhcp4 ); 190 } 191 } 192 /* 193 } 194 195 // 196 // Done with the DHCP protocol 197 // 198 pService->DestroyChild ( pService, 199 Dhcp4Handle ); 200 */ 201 } 202 203 // 204 // Set the next service binding 205 // 206 pHandle += 1; 207 } 208 } 209 210 // 211 // Send the page trailer 212 // 213 Status = HttpPageTrailer ( SocketFD, pPort, pbDone ); 214 break; 215 } 216 217 // 218 // Return the operation status 219 // 220 DBG_EXIT_STATUS ( Status ); 221 return Status; 222 } 223
