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https://github.com/DarkFlippers/unleashed-firmware
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0d4ead8fbd
* Add initial ISO7816 support * Format sources and sync API Symbols version * Debug: change VID/PID in ccid test app to opensc detectable generic one Co-authored-by: あく <alleteam@gmail.com>
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
// transforms low level calls such as XFRCallback or ICC Power on to a structured one
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// an application can register these calls and listen for the callbacks defined in Iso7816Callbacks
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#include "iso7816_t0_apdu.h"
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#include "iso7816_atr.h"
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#include "iso7816_callbacks.h"
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#include <stdint.h>
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#include <stddef.h>
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#include <furi.h>
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#define ISO7816_RESPONSE_BUFFER_SIZE 255
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static Iso7816Callbacks* callbacks = NULL;
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void iso7816_set_callbacks(Iso7816Callbacks* cb) {
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callbacks = cb;
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}
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void iso7816_icc_power_on_callback(uint8_t* atrBuffer, uint32_t* atrlen) {
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Iso7816Atr atr;
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callbacks->iso7816_answer_to_reset(&atr);
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furi_assert(atr.T0 == 0x00);
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uint8_t AtrBuffer[2] = {atr.TS, atr.T0};
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*atrlen = 2;
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memcpy(atrBuffer, AtrBuffer, sizeof(uint8_t) * (*atrlen));
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}
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//dataBlock points to the buffer
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//dataBlockLen tells reader how nany bytes should be read
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void iso7816_xfr_datablock_callback(
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const uint8_t* pcToReaderDataBlock,
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uint32_t pcToReaderDataBlockLen,
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uint8_t* readerToPcDataBlock,
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uint32_t* readerToPcDataBlockLen) {
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struct ISO7816_Response_APDU responseAPDU;
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uint8_t responseApduDataBuffer[ISO7816_RESPONSE_BUFFER_SIZE];
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uint8_t responseApduDataBufferLen = 0;
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if(callbacks != NULL) {
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struct ISO7816_Command_APDU commandAPDU;
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const uint8_t* commandApduDataBuffer = NULL;
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uint8_t commandApduDataBufferLen = 0;
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iso7816_read_command_apdu(&commandAPDU, pcToReaderDataBlock, pcToReaderDataBlockLen);
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if(commandAPDU.Lc > 0) {
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commandApduDataBufferLen = commandAPDU.Lc;
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commandApduDataBuffer = &pcToReaderDataBlock[5];
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}
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callbacks->iso7816_process_command(
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&commandAPDU,
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&responseAPDU,
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commandApduDataBuffer,
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commandApduDataBufferLen,
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responseApduDataBuffer,
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&responseApduDataBufferLen);
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} else {
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//class not supported
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responseAPDU.SW1 = 0x6E;
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responseAPDU.SW2 = 0x00;
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}
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iso7816_write_response_apdu(
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&responseAPDU,
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readerToPcDataBlock,
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readerToPcDataBlockLen,
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responseApduDataBuffer,
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responseApduDataBufferLen);
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}
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