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https://github.com/DarkFlippers/unleashed-firmware.git
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1510d8773b
* CCID: Improve request and response data handling - Add iso7816_set_response function: serves a helpers to set SW1 and SW2 values - improved iso7816_read_response_apdu by correctly parsing Lc and Le values - add client script to make testing easier * lint and rename * Format * Review changes: pragma once, typedef * Move command/response data and datalen into respective structures * Remove conditional for Lc=0 * Fix comment: Le * Make PVS happy and fix spelling Co-authored-by: あく <alleteam@gmail.com>
66 lines
2.2 KiB
C
66 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 <stdint.h>
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#include <stddef.h>
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#include <furi.h>
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#include <furi_hal.h>
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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 "iso7816_response.h"
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static Iso7816Callbacks* callbacks = NULL;
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static uint8_t commandApduBuffer[sizeof(ISO7816_Command_APDU) + CCID_SHORT_APDU_SIZE];
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static uint8_t responseApduBuffer[sizeof(ISO7816_Response_APDU) + CCID_SHORT_APDU_SIZE];
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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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ISO7816_Response_APDU* responseAPDU = (ISO7816_Response_APDU*)&responseApduBuffer;
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if(callbacks != NULL) {
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ISO7816_Command_APDU* commandAPDU = (ISO7816_Command_APDU*)&commandApduBuffer;
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uint8_t result =
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iso7816_read_command_apdu(commandAPDU, pcToReaderDataBlock, pcToReaderDataBlockLen);
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if(result == ISO7816_READ_COMMAND_APDU_OK) {
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callbacks->iso7816_process_command(commandAPDU, responseAPDU);
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furi_assert(responseAPDU->DataLen < CCID_SHORT_APDU_SIZE);
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} else if(result == ISO7816_READ_COMMAND_APDU_ERROR_WRONG_LE) {
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iso7816_set_response(responseAPDU, ISO7816_RESPONSE_WRONG_LE);
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} else if(result == ISO7816_READ_COMMAND_APDU_ERROR_WRONG_LENGTH) {
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iso7816_set_response(responseAPDU, ISO7816_RESPONSE_WRONG_LENGTH);
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}
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} else {
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iso7816_set_response(responseAPDU, ISO7816_RESPONSE_INTERNAL_EXCEPTION);
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}
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iso7816_write_response_apdu(responseAPDU, readerToPcDataBlock, readerToPcDataBlockLen);
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}
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