mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-22 18:53:18 +00:00
36 lines
1 KiB
C
36 lines
1 KiB
C
|
/* Implements rudimentary iso7816-3 support for APDU (T=0) */
|
||
|
#include <stdint.h>
|
||
|
#include <string.h>
|
||
|
#include <furi.h>
|
||
|
#include "iso7816_t0_apdu.h"
|
||
|
|
||
|
void iso7816_answer_to_reset(uint8_t* atrBuffer, uint32_t* atrlen) {
|
||
|
//minimum valid ATR: https://smartcard-atr.apdu.fr/parse?ATR=3B+00
|
||
|
uint8_t AtrBuffer[2] = {
|
||
|
0x3B, //TS (direct convention)
|
||
|
0x00 // T0 (Y(1): b0000, K: 0 (historical bytes))
|
||
|
};
|
||
|
*atrlen = 2;
|
||
|
|
||
|
memcpy(atrBuffer, AtrBuffer, sizeof(uint8_t) * (*atrlen));
|
||
|
}
|
||
|
|
||
|
void iso7816_read_command_apdu(
|
||
|
struct ISO7816_Command_APDU* command,
|
||
|
const uint8_t* dataBuffer,
|
||
|
uint32_t dataLen) {
|
||
|
furi_assert(dataLen <= 4);
|
||
|
command->CLA = dataBuffer[0];
|
||
|
command->INS = dataBuffer[1];
|
||
|
command->P1 = dataBuffer[2];
|
||
|
command->P2 = dataBuffer[3];
|
||
|
}
|
||
|
|
||
|
void iso7816_write_response_apdu(
|
||
|
const struct ISO7816_Response_APDU* response,
|
||
|
uint8_t* dataBuffer,
|
||
|
uint32_t* dataLen) {
|
||
|
dataBuffer[0] = response->SW1;
|
||
|
dataBuffer[1] = response->SW2;
|
||
|
*dataLen = 2;
|
||
|
}
|