1 /** @file 2 The UEFI Smart Card Reader Protocol provides an abstraction for device to provide 3 smart card reader support. This protocol is very close to Part 5 of PC/SC workgroup 4 specifications and provides an API to applications willing to communicate with a 5 smart card or a smart card reader. 6 7 Copyright (c) 2015, Intel Corporation. All rights reserved.<BR> 8 This program and the accompanying materials 9 are licensed and made available under the terms and conditions of the BSD License 10 which accompanies this distribution. The full text of the license may be found at 11 http://opensource.org/licenses/bsd-license.php 12 13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 15 16 **/ 17 18 #ifndef __SMART_CARD_READER_H__ 19 #define __SMART_CARD_READER_H__ 20 21 #define EFI_SMART_CARD_READER_PROTOCOL_GUID \ 22 { \ 23 0x2a4d1adf, 0x21dc, 0x4b81, {0xa4, 0x2f, 0x8b, 0x8e, 0xe2, 0x38, 0x00, 0x60} \ 24 } 25 26 typedef struct _EFI_SMART_CARD_READER_PROTOCOL EFI_SMART_CARD_READER_PROTOCOL; 27 28 // 29 // Codes for access mode 30 // 31 #define SCARD_AM_READER 0x0001 // Exclusive access to reader 32 #define SCARD_AM_CARD 0x0002 // Exclusive access to card 33 // 34 // Codes for card action 35 // 36 #define SCARD_CA_NORESET 0x0000 // Don't reset card 37 #define SCARD_CA_COLDRESET 0x0001 // Perform a cold reset 38 #define SCARD_CA_WARMRESET 0x0002 // Perform a warm reset 39 #define SCARD_CA_UNPOWER 0x0003 // Power off the card 40 #define SCARD_CA_EJECT 0x0004 // Eject the card 41 // 42 // Protocol types 43 // 44 #define SCARD_PROTOCOL_UNDEFINED 0x0000 45 #define SCARD_PROTOCOL_T0 0x0001 46 #define SCARD_PROTOCOL_T1 0x0002 47 #define SCARD_PROTOCOL_RAW 0x0004 48 // 49 // Codes for state type 50 // 51 #define SCARD_UNKNOWN 0x0000 /* state is unknown */ 52 #define SCARD_ABSENT 0x0001 /* Card is absent */ 53 #define SCARD_INACTIVE 0x0002 /* Card is present and not powered*/ 54 #define SCARD_ACTIVE 0x0003 /* Card is present and powered */ 55 // 56 // Macro to generate a ControlCode & PC/SC part 10 control code 57 // 58 #define SCARD_CTL_CODE(code) (0x42000000 + (code)) 59 #define CM_IOCTL_GET_FEATURE_REQUEST SCARD_CTL_CODE(3400) 60 61 /** 62 This function requests connection to the smart card or the reader, using the 63 appropriate reset type and protocol. 64 65 The SCardConnectfunction requests access to the smart card or the reader. Upon 66 success, it is then possible to call SCardTransmit. 67 68 If AccessMode is set to SCARD_AM_READER, PreferredProtocols must be set to 69 SCARD_PROTOCOL_UNDEFINED and CardAction to SCARD_CA_NORESET else function 70 fails with EFI_INVALID_PARAMETER. 71 72 @param[in] This Indicates a pointer to the calling context. 73 @param[in] AccessMode Codes of access mode. 74 @param[in] CardAction SCARD_CA_NORESET, SCARD_CA_COLDRESET or 75 SCARD_CA_WARMRESET. 76 @param[in] PreferredProtocols Bitmask of acceptable protocols. 77 @param[out] ActiveProtocol A flag that indicates the active protocol. 78 79 @retval EFI_SUCCESS The requested command completed successfully. 80 @retval EFI_INVALID_PARAMETER This is NULL 81 @retval EFI_INVALID_PARAMETER AccessMode is not valid. 82 @retval EFI_INVALID_PARAMETER CardAction is not valid. 83 @retval EFI_INVALID_PARAMETER Invalid combination of AccessMode/CardAction/ 84 PreferredProtocols. 85 @retval EFI_NOT_READY A smart card is inserted but failed to return an ATR. 86 @retval EFI_UNSUPPORTED PreferredProtocols does not contain an available 87 protocol to use. 88 @retval EFI_NO_MEDIA AccessMode is set to SCARD_AM_CARD but there is 89 no smart card inserted. 90 @retval EFI_ACCESS_DENIED Access is already locked by a previous SCardConnectcall. 91 @retval EFI_DEVICE_ERROR Any other error condition, typically a reader removal. 92 93 **/ 94 typedef 95 EFI_STATUS 96 (EFIAPI *EFI_SMART_CARD_READER_CONNECT) ( 97 IN EFI_SMART_CARD_READER_PROTOCOL *This, 98 IN UINT32 AccessMode, 99 IN UINT32 CardAction, 100 IN UINT32 PreferredProtocols, 101 OUT UINT32 *ActiveProtocol 102 ); 103 104 /** 105 This function releases a connection previously taken by SCardConnect. 106 107 The SCardDisconnect function releases the lock previously taken by SCardConnect. 108 In case the smart card has been removed before this call, thisfunction 109 returns EFI_SUCCESS. If there is no previous call to SCardConnect, this 110 function returns EFI_SUCCESS. 111 112 @param[in] This Indicates a pointer to the calling context. 113 @param[in] CardAction Codes for card action. 114 115 @retval EFI_SUCCESS The requested command completed successfully. 116 @retval EFI_INVALID_PARAMETER This is NULL 117 @retval EFI_INVALID_PARAMETER CardAction value is unknown. 118 @retval EFI_UNSUPPORTED Reader does not support Eject card feature 119 (disconnect was not performed). 120 @retval EFI_DEVICE_ERROR Any other error condition, typically a reader removal. 121 122 **/ 123 typedef 124 EFI_STATUS 125 (EFIAPI *EFI_SMART_CARD_READER_DISCONNECT) ( 126 IN EFI_SMART_CARD_READER_PROTOCOL *This, 127 IN UINT32 CardAction 128 ); 129 130 /** 131 This function retrieves some basic information about the smart card and reader. 132 133 The SCardStatusfunction retrieves basic reader and card information. 134 135 If ReaderName, State, CardProtocolor Atris NULL, the function does not fail but 136 does not fill in such variables. 137 138 If EFI_SUCCESS is not returned, ReaderName and Atr contents shall not be considered 139 as valid. 140 141 @param[in] This Indicates a pointer to the calling context. 142 @param[out] ReaderName A pointer to a NULL terminated string that will 143 contain the reader name. 144 @param[in, out] ReaderNameLength On input, a pointer to the variablethat holds the 145 maximal size, in bytes,of ReaderName. 146 On output, the required size, in bytes, for ReaderName. 147 @param[out] State Current state of the smart card reader. 148 @param[out] CardProtocol Current protocol used to communicate with the smart card. 149 @param[out] Atr A pointer to retrieve the ATR of the smart card. 150 @param[in, out] AtrLength On input, a pointer to hold the maximum size, in bytes, 151 of Atr(usually 33). 152 On output, the required size, inbytes, for the smart 153 card ATR. 154 155 @retval EFI_SUCCESS The requested command completed successfully. 156 @retval EFI_INVALID_PARAMETER This is NULL 157 @retval EFI_INVALID_PARAMETER ReaderName is not NULL but ReaderNameLength is NULL 158 @retval EFI_INVALID_PARAMETER Atr is not NULL but AtrLength is NULL 159 @retval EFI_BUFFER_TOO_SMALL ReaderNameLength is not big enough to hold the reader name. 160 ReaderNameLength has been updated to the required value. 161 @retval EFI_BUFFER_TOO_SMALL AtrLength is not big enough to hold the ATR. 162 AtrLength has been updated to the required value. 163 @retval EFI_DEVICE_ERROR Any other error condition, typically a reader removal. 164 165 **/ 166 typedef 167 EFI_STATUS 168 (EFIAPI *EFI_SMART_CARD_READER_STATUS) ( 169 IN EFI_SMART_CARD_READER_PROTOCOL *This, 170 OUT CHAR16 *ReaderName OPTIONAL, 171 IN OUT UINTN *ReaderNameLength OPTIONAL, 172 OUT UINT32 *State OPTIONAL, 173 OUT UINT32 *CardProtocol OPTIONAL, 174 OUT UINT8 *Atr OPTIONAL, 175 IN OUT UINTN *AtrLength OPTIONAL 176 ); 177 178 /** 179 This function sends a command to the card or reader and returns its response. 180 181 The protocol to use to communicate with the smart card has been selected through 182 SCardConnectcall. 183 184 In case RAPDULength indicates a buffer too small to holdthe response APDU, the 185 function fails with EFI_BUFFER_TOO_SMALL. 186 187 @param[in] This A pointer to the EFI_USBFN_IO_PROTOCOLinstance. 188 @param[in] CAPDU A pointer to a byte array thatcontains the Command 189 APDU to send to the smart card or reader. 190 @param[in] CAPDULength Command APDU size, in bytes. 191 @param[out] RAPDU A pointer to a byte array that will contain the 192 Response APDU. 193 @param[in, out] RAPDULength On input, the maximum size, inbytes, of the Response 194 APDU. 195 On output, the size, in bytes, of the Response APDU. 196 197 @retval EFI_SUCCESS The requested command completed successfully. 198 @retval EFI_INVALID_PARAMETER This is NULL. 199 @retval EFI_INVALID_PARAMETER CAPDU is NULL or CAPDULength is 0. 200 @retval EFI_BUFFER_TOO_SMALL RAPDULength is not big enough to hold the response APDU. 201 RAPDULength has been updated to the required value. 202 @retval EFI_NO_MEDIA There is no card in the reader. 203 @retval EFI_NOT_READY Card is not powered. 204 @retval EFI_PROTOCOL_ERROR A protocol error has occurred. 205 @retval EFI_TIMEOUT The reader did not respond. 206 @retval EFI_ACCESS_DENIED A communication with the reader/card is already pending. 207 @retval EFI_DEVICE_ERROR Any other error condition, typically a reader removal. 208 209 **/ 210 typedef 211 EFI_STATUS 212 (EFIAPI *EFI_SMART_CARD_READER_TRANSMIT) ( 213 IN EFI_SMART_CARD_READER_PROTOCOL *This, 214 IN UINT8 *CAPDU, 215 IN UINTN CAPDULength, 216 OUT UINT8 *RAPDU, 217 IN OUT UINTN *RAPDULength 218 ); 219 220 /** 221 This function provides direct access to the reader. 222 223 This function gives direct control to send commands to the driver or the reader. 224 The ControlCode to use is vendor dependant; the only standard code defined is 225 the one to get PC/SC part 10 features. 226 227 InBuffer and Outbuffer may be NULL when ControlCode operation does not require 228 them. 229 230 @param[in] This Indicates a pointer to the calling context. 231 @param[in] ControlCode The control code for the operation to perform. 232 @param[in] InBuffer A pointer to the input parameters. 233 @param[in] InBufferLength Size, in bytes, of input parameters. 234 @param[out] OutBuffer A pointer to the output parameters. 235 @param[in, out] OutBufferLength On input, maximal size, in bytes, to store output 236 parameters. 237 On output, the size, in bytes, of output parameters. 238 239 @retval EFI_SUCCESS The requested command completed successfully. 240 @retval EFI_INVALID_PARAMETER This is NULL. 241 @retval EFI_INVALID_PARAMETER ControlCode requires input parameters but: 242 InBuffer is NULL or InBufferLenth is NULL or 243 InBuffer is not NULL but InBufferLenth is less than 244 expected. 245 @retval EFI_INVALID_PARAMETER OutBuffer is not NULL but OutBufferLength is NULL. 246 @retval EFI_UNSUPPORTED ControlCode is not supported. 247 @retval EFI_BUFFER_TOO_SMALL OutBufferLength is not big enough to hold the output 248 parameters. 249 OutBufferLength has been updated to the required value. 250 @retval EFI_NO_MEDIA There is no card in the reader and the control code 251 specified requires one. 252 @retval EFI_NOT_READY ControlCode requires a powered card to operate. 253 @retval EFI_PROTOCOL_ERROR A protocol error has occurred. 254 @retval EFI_TIMEOUT The reader did not respond. 255 @retval EFI_ACCESS_DENIED A communication with the reader/card is already pending. 256 @retval EFI_DEVICE_ERROR Any other error condition, typically a reader removal. 257 258 **/ 259 typedef 260 EFI_STATUS 261 (EFIAPI *EFI_SMART_CARD_READER_CONTROL) ( 262 IN EFI_SMART_CARD_READER_PROTOCOL *This, 263 IN UINT32 ControlCode, 264 IN UINT8 *InBuffer OPTIONAL, 265 IN UINTN InBufferLength OPTIONAL, 266 OUT UINT8 *OutBuffer OPTIONAL, 267 IN OUT UINTN *OutBufferLength OPTIONAL 268 ); 269 270 /** 271 This function retrieves a reader or smart card attribute. 272 273 Possibly supported attrib values are listed in "PC/SC specification, Part 3: 274 Requirements for PC-Connected Interface Devices". 275 276 @param[in] This Indicates a pointer to the calling context. 277 @param[in] Attrib Identifier for the attribute to retrieve. 278 @param[out] OutBuffer A pointer to a buffer that will contain 279 attribute data. 280 @param[in, out] OutBufferLength On input, maximal size, in bytes, to store 281 attribute data. 282 On output, the size, in bytes, of attribute 283 data. 284 285 @retval EFI_SUCCESS The requested command completed successfully. 286 @retval EFI_INVALID_PARAMETER This is NULL. 287 @retval EFI_INVALID_PARAMETER OutBuffer is NULL or OutBufferLength is 0. 288 @retval EFI_BUFFER_TOO_SMALL OutBufferLength is not big enough to hold the output 289 parameters. 290 OutBufferLength has been updated to the required value. 291 @retval EFI_UNSUPPORTED Attribis not supported 292 @retval EFI_NO_MEDIA There is no card in the reader and Attrib value 293 requires one. 294 @retval EFI_NOT_READY Attrib requires a powered card to operate. 295 @retval EFI_PROTOCOL_ERROR A protocol error has occurred. 296 @retval EFI_TIMEOUT The reader did not respond. 297 @retval EFI_DEVICE_ERROR Any other error condition, typically a reader removal. 298 299 **/ 300 typedef 301 EFI_STATUS 302 (EFIAPI *EFI_SMART_CARD_READER_GET_ATTRIB) ( 303 IN EFI_SMART_CARD_READER_PROTOCOL *This, 304 IN UINT32 Attrib, 305 OUT UINT8 *OutBuffer, 306 IN OUT UINTN *OutBufferLength 307 ); 308 309 /// 310 /// Smart card aware application invokes this protocol to get access to an inserted 311 /// smart card in the reader or to the reader itself. 312 /// 313 struct _EFI_SMART_CARD_READER_PROTOCOL { 314 EFI_SMART_CARD_READER_CONNECT SCardConnect; 315 EFI_SMART_CARD_READER_DISCONNECT SCardDisconnect; 316 EFI_SMART_CARD_READER_STATUS SCardStatus; 317 EFI_SMART_CARD_READER_TRANSMIT SCardTransmit; 318 EFI_SMART_CARD_READER_CONTROL SCardControl; 319 EFI_SMART_CARD_READER_GET_ATTRIB SCardGetAttrib; 320 }; 321 322 extern EFI_GUID gEfiSmartCardReaderProtocolGuid; 323 324 #endif 325 326