559 lines
15 KiB
C
559 lines
15 KiB
C
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/*
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* sc-card.c: General SmartCard functions
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*
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* Copyright (C) 2001 Juha Yrj<EFBFBD>l<EFBFBD> <juha.yrjola@iki.fi>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "opensc.h"
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#include "sc-log.h"
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#include "sc-asn1.h"
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#include <assert.h>
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#include <stdlib.h>
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int sc_sw_to_errorcode(struct sc_card *card, int sw1, int sw2)
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{
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switch (sw1) {
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case 0x69:
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switch (sw2) {
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case 0x82:
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return SC_ERROR_SECURITY_STATUS_NOT_SATISFIED;
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default:
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break;
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}
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break;
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case 0x6A:
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switch (sw2) {
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case 0x81:
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return SC_ERROR_NOT_SUPPORTED;
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case 0x82:
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case 0x83:
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return SC_ERROR_FILE_NOT_FOUND;
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case 0x86:
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case 0x87:
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return SC_ERROR_INVALID_ARGUMENTS;
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default:
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break;
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}
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break;
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case 0x6D:
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return SC_ERROR_NOT_SUPPORTED;
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case 0x6E:
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return SC_ERROR_UNKNOWN_SMARTCARD;
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case 0x90:
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if (sw2 == 0)
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return 0;
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}
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error(card->ctx, "Unknown SW's: SW1=%02X, SW2=%02X\n", sw1, sw2);
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return SC_ERROR_UNKNOWN_REPLY;
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}
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static int sc_check_apdu(struct sc_context *ctx, const struct sc_apdu *apdu)
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{
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switch (apdu->cse) {
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case SC_APDU_CASE_1:
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if (apdu->datalen > 0)
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SC_FUNC_RETURN(ctx, 4, SC_ERROR_INVALID_ARGUMENTS);
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break;
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case SC_APDU_CASE_2_SHORT:
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if (apdu->datalen > 0)
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SC_FUNC_RETURN(ctx, 4, SC_ERROR_INVALID_ARGUMENTS);
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if (apdu->resplen < apdu->le)
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SC_FUNC_RETURN(ctx, 4, SC_ERROR_INVALID_ARGUMENTS);
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break;
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case SC_APDU_CASE_3_SHORT:
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if (apdu->datalen == 0 || apdu->data == NULL)
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SC_FUNC_RETURN(ctx, 4, SC_ERROR_INVALID_ARGUMENTS);
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break;
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case SC_APDU_CASE_4_SHORT:
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if (apdu->datalen == 0 || apdu->data == NULL)
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SC_FUNC_RETURN(ctx, 4, SC_ERROR_INVALID_ARGUMENTS);
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if (apdu->resplen < apdu->le)
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SC_FUNC_RETURN(ctx, 4, SC_ERROR_INVALID_ARGUMENTS);
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break;
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case SC_APDU_CASE_2_EXT:
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case SC_APDU_CASE_3_EXT:
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case SC_APDU_CASE_4_EXT:
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SC_FUNC_RETURN(ctx, 4, SC_ERROR_INVALID_ARGUMENTS);
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}
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return 0;
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}
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static int sc_transceive_t0(struct sc_card *card, struct sc_apdu *apdu)
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{
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SCARD_IO_REQUEST sSendPci, sRecvPci;
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BYTE s[SC_MAX_APDU_BUFFER_SIZE], r[SC_MAX_APDU_BUFFER_SIZE];
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DWORD dwSendLength, dwRecvLength;
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LONG rv;
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u8 *data = s;
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size_t data_bytes = apdu->lc;
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if (data_bytes == 0)
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data_bytes = 256;
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*data++ = apdu->cla;
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*data++ = apdu->ins;
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*data++ = apdu->p1;
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*data++ = apdu->p2;
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switch (apdu->cse) {
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case SC_APDU_CASE_1:
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break;
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case SC_APDU_CASE_2_SHORT:
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*data++ = (u8) apdu->le;
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break;
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case SC_APDU_CASE_2_EXT:
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*data++ = (u8) 0;
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*data++ = (u8) (apdu->le >> 8);
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*data++ = (u8) (apdu->le & 0xFF);
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break;
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case SC_APDU_CASE_3_SHORT:
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*data++ = (u8) apdu->lc;
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if (apdu->datalen != data_bytes)
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return SC_ERROR_INVALID_ARGUMENTS;
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memcpy(data, apdu->data, data_bytes);
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data += data_bytes;
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break;
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case SC_APDU_CASE_4_SHORT:
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*data++ = (u8) apdu->lc;
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if (apdu->datalen != data_bytes)
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return SC_ERROR_INVALID_ARGUMENTS;
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memcpy(data, apdu->data, data_bytes);
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data += data_bytes;
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*data++ = (u8) apdu->le;
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break;
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}
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sSendPci.dwProtocol = SCARD_PROTOCOL_T0;
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sSendPci.cbPciLength = 0;
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sRecvPci.dwProtocol = SCARD_PROTOCOL_T0;
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sRecvPci.cbPciLength = 0;
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dwSendLength = data - s;
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dwRecvLength = apdu->resplen + 2;
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if (dwRecvLength > 255) /* FIXME: PC/SC Lite quirk */
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dwRecvLength = 255;
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if (card->ctx->debug >= 5) {
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char buf[2048];
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sc_hex_dump(card->ctx, s, (size_t) dwSendLength, buf, sizeof(buf));
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debug(card->ctx, "Sending %d bytes (resp. %d bytes):\n%s",
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dwSendLength, dwRecvLength, buf);
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}
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rv = SCardTransmit(card->pcsc_card, &sSendPci, s, dwSendLength,
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&sRecvPci, r, &dwRecvLength);
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if (rv != SCARD_S_SUCCESS) {
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switch (rv) {
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case SCARD_W_REMOVED_CARD:
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return SC_ERROR_CARD_REMOVED;
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case SCARD_W_RESET_CARD:
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return SC_ERROR_CARD_RESET;
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case SCARD_E_NOT_TRANSACTED:
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if (sc_detect_card(card->ctx, card->reader) != 1)
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return SC_ERROR_CARD_REMOVED;
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return SC_ERROR_TRANSMIT_FAILED;
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default:
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error(card->ctx, "SCardTransmit failed: %s\n", pcsc_stringify_error(rv));
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return SC_ERROR_TRANSMIT_FAILED;
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}
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}
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if (dwRecvLength < 2)
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return SC_ERROR_ILLEGAL_RESPONSE;
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apdu->sw1 = (unsigned int) r[dwRecvLength-2];
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apdu->sw2 = (unsigned int) r[dwRecvLength-1];
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dwRecvLength -= 2;
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if ((size_t) dwRecvLength > apdu->resplen)
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dwRecvLength = (DWORD) apdu->resplen;
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else
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apdu->resplen = (size_t) dwRecvLength;
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if (dwRecvLength > 0)
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memcpy(apdu->resp, r, (size_t) dwRecvLength);
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return 0;
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}
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int sc_transmit_apdu(struct sc_card *card, struct sc_apdu *apdu)
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{
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int r;
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SC_FUNC_CALLED(card->ctx, 4);
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r = sc_check_apdu(card->ctx, apdu);
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SC_TEST_RET(card->ctx, r, "APDU sanity check failed");
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r = sc_transceive_t0(card, apdu);
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SC_TEST_RET(card->ctx, r, "transceive_t0() failed");
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if (card->ctx->debug >= 5) {
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char buf[2048];
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buf[0] = '\0';
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if (apdu->resplen > 0) {
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sc_hex_dump(card->ctx, apdu->resp, apdu->resplen,
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buf, sizeof(buf));
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}
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debug(card->ctx, "Received %d bytes (SW1=%02X SW2=%02X)\n%s",
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apdu->resplen, apdu->sw1, apdu->sw2, buf);
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}
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if (apdu->sw1 == 0x61 && apdu->resplen == 0) {
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struct sc_apdu rspapdu;
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BYTE rsp[SC_MAX_APDU_BUFFER_SIZE];
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if (apdu->no_response != 0)
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return 0;
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sc_format_apdu(card, &rspapdu, SC_APDU_CASE_2_SHORT,
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0xC0, 0, 0);
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rspapdu.le = (size_t) apdu->sw2;
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rspapdu.resp = rsp;
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rspapdu.resplen = (size_t) apdu->sw2;
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r = sc_transceive_t0(card, &rspapdu);
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if (r != 0) {
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error(card->ctx, "error while getting response: %s\n",
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sc_strerror(r));
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return r;
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}
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if (card->ctx->debug >= 5) {
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char buf[2048];
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buf[0] = 0;
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if (rspapdu.resplen) {
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sc_hex_dump(card->ctx, rspapdu.resp,
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rspapdu.resplen,
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buf, sizeof(buf));
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}
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debug(card->ctx, "Response %d bytes (SW1=%02X SW2=%02X)\n%s",
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rspapdu.resplen, rspapdu.sw1, rspapdu.sw2, buf);
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}
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/* FIXME: Check apdu->resplen */
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memcpy(apdu->resp, rspapdu.resp, rspapdu.resplen);
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apdu->resplen = rspapdu.resplen;
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apdu->sw1 = rspapdu.sw1;
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apdu->sw2 = rspapdu.sw2;
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}
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return 0;
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}
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void sc_format_apdu(struct sc_card *card, struct sc_apdu *apdu,
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int cse, int ins, int p1, int p2)
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{
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assert(card != NULL && apdu != NULL);
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memset(apdu, 0, sizeof(*apdu));
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apdu->cla = (u8) card->cla;
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apdu->cse = cse;
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apdu->ins = (u8) ins;
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apdu->p1 = (u8) p1;
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apdu->p2 = (u8) p2;
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apdu->no_response = 0;
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return;
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}
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int sc_connect_card(struct sc_context *ctx,
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int reader, struct sc_card **card_out)
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{
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struct sc_card *card;
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DWORD active_proto;
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SCARDHANDLE card_handle;
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SCARD_READERSTATE_A rgReaderStates[SC_MAX_READERS];
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LONG rv;
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int i;
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assert(card_out != NULL);
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SC_FUNC_CALLED(ctx, 1);
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if (reader >= ctx->reader_count || reader < 0)
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SC_FUNC_RETURN(ctx, 1, SC_ERROR_OBJECT_NOT_FOUND);
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rgReaderStates[0].szReader = ctx->readers[reader];
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rgReaderStates[0].dwCurrentState = SCARD_STATE_UNAWARE;
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rv = SCardGetStatusChange(ctx->pcsc_ctx, 0, rgReaderStates, 1);
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if (rv != 0) {
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error(ctx, "SCardGetStatusChange failed: %s\n", pcsc_stringify_error(rv));
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SC_FUNC_RETURN(ctx, 1, SC_ERROR_RESOURCE_MANAGER); /* FIXME */
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}
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if (!(rgReaderStates[0].dwEventState & SCARD_STATE_PRESENT))
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SC_FUNC_RETURN(ctx, 1, SC_ERROR_CARD_NOT_PRESENT);
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card = malloc(sizeof(struct sc_card));
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if (card == NULL)
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SC_FUNC_RETURN(ctx, 1, SC_ERROR_OUT_OF_MEMORY);
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memset(card, 0, sizeof(struct sc_card));
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rv = SCardConnect(ctx->pcsc_ctx, ctx->readers[reader],
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SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0,
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&card_handle, &active_proto);
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if (rv != 0) {
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error(ctx, "SCardConnect failed: %s\n", pcsc_stringify_error(rv));
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free(card);
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return -1; /* FIXME */
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}
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card->reader = reader;
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card->ctx = ctx;
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card->pcsc_card = card_handle;
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i = rgReaderStates[0].cbAtr;
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if (i >= SC_MAX_ATR_SIZE)
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i = SC_MAX_ATR_SIZE;
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memcpy(card->atr, rgReaderStates[0].rgbAtr, i);
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card->atr_len = i;
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for (i = 0; ctx->card_drivers[i] != NULL; i++) {
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const struct sc_card_driver *drv = ctx->card_drivers[i];
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const struct sc_card_operations *ops = drv->ops;
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if (ctx->debug >= 3)
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debug(ctx, "trying driver: %s\n", drv->name);
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if (ops == NULL || ops->match_card == NULL)
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continue;
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if (ops->match_card(card) == 1) {
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if (ctx->debug >= 3)
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debug(ctx, "matched\n");
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card->ops = ops;
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}
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}
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if (card->ops == NULL) {
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error(ctx, "unable to find driver for inserted card\n");
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free(card);
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return SC_ERROR_INVALID_CARD;
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}
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pthread_mutex_init(&card->mutex, NULL);
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*card_out = card;
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SC_FUNC_RETURN(ctx, 1, 0);
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}
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int sc_disconnect_card(struct sc_card *card)
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{
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struct sc_context *ctx = card->ctx;
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assert(card != NULL);
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SC_FUNC_CALLED(ctx, 1);
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SCardDisconnect(card->pcsc_card, SCARD_LEAVE_CARD);
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pthread_mutex_destroy(&card->mutex);
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free(card);
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SC_FUNC_RETURN(ctx, 1, 0);
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}
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static int _sc_lock_int(struct sc_card *card)
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{
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long rv;
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rv = SCardBeginTransaction(card->pcsc_card);
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if (rv != SCARD_S_SUCCESS) {
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error(card->ctx, "SCardBeginTransaction failed: %s\n", pcsc_stringify_error(rv));
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return -1;
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}
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return 0;
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}
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int sc_lock(struct sc_card *card)
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{
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SC_FUNC_CALLED(card->ctx, 2);
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pthread_mutex_lock(&card->mutex);
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SC_FUNC_RETURN(card->ctx, 2, _sc_lock_int(card));
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}
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static int _sc_unlock_int(struct sc_card *card)
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{
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long rv;
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rv = SCardEndTransaction(card->pcsc_card, SCARD_LEAVE_CARD);
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if (rv != SCARD_S_SUCCESS) {
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error(card->ctx, "SCardEndTransaction failed: %s\n", pcsc_stringify_error(rv));
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return -1;
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}
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return 0;
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}
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int sc_unlock(struct sc_card *card)
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{
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SC_FUNC_CALLED(card->ctx, 2);
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pthread_mutex_unlock(&card->mutex);
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SC_FUNC_RETURN(card->ctx, 2, _sc_unlock_int(card));
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}
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|
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|
int sc_list_files(struct sc_card *card, u8 *buf, int buflen)
|
|||
|
{
|
|||
|
struct sc_apdu apdu;
|
|||
|
int r;
|
|||
|
|
|||
|
SC_FUNC_CALLED(card->ctx, 2);
|
|||
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xAA, 0, 0);
|
|||
|
apdu.resp = buf;
|
|||
|
apdu.resplen = buflen;
|
|||
|
apdu.le = 0;
|
|||
|
r = sc_transmit_apdu(card, &apdu);
|
|||
|
SC_TEST_RET(card->ctx, r, "APDU transmit failed");
|
|||
|
if (apdu.resplen == 0)
|
|||
|
return sc_sw_to_errorcode(card, apdu.sw1, apdu.sw2);
|
|||
|
return apdu.resplen;
|
|||
|
}
|
|||
|
|
|||
|
static int construct_fci(const struct sc_file *file, u8 *out, int *outlen)
|
|||
|
{
|
|||
|
u8 *p = out;
|
|||
|
u8 buf[32];
|
|||
|
|
|||
|
*p++ = 0x6F;
|
|||
|
p++;
|
|||
|
|
|||
|
buf[0] = (file->size >> 8) & 0xFF;
|
|||
|
buf[1] = file->size & 0xFF;
|
|||
|
sc_asn1_put_tag(0x81, buf, 2, p, 16, &p);
|
|||
|
buf[0] = file->shareable ? 0x40 : 0;
|
|||
|
buf[0] |= (file->type & 7) << 3;
|
|||
|
buf[0] |= file->ef_structure & 7;
|
|||
|
sc_asn1_put_tag(0x82, buf, 1, p, 16, &p);
|
|||
|
buf[0] = (file->id >> 8) & 0xFF;
|
|||
|
buf[1] = file->id & 0xFF;
|
|||
|
sc_asn1_put_tag(0x83, buf, 2, p, 16, &p);
|
|||
|
/* 0x84 = DF name */
|
|||
|
if (file->prop_attr_len) {
|
|||
|
memcpy(buf, file->prop_attr, file->prop_attr_len);
|
|||
|
sc_asn1_put_tag(0x85, buf, file->prop_attr_len, p, 18, &p);
|
|||
|
}
|
|||
|
if (file->sec_attr_len) {
|
|||
|
memcpy(buf, file->sec_attr, file->sec_attr_len);
|
|||
|
sc_asn1_put_tag(0x86, buf, file->sec_attr_len, p, 18, &p);
|
|||
|
}
|
|||
|
*p++ = 0xDE;
|
|||
|
*p++ = 0;
|
|||
|
*outlen = p - out;
|
|||
|
out[1] = p - out - 2;
|
|||
|
return 0;
|
|||
|
}
|
|||
|
|
|||
|
int sc_create_file(struct sc_card *card, const struct sc_file *file)
|
|||
|
{
|
|||
|
int r, len;
|
|||
|
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
|
|||
|
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
|
|||
|
struct sc_apdu apdu;
|
|||
|
|
|||
|
SC_FUNC_CALLED(card->ctx, 1);
|
|||
|
len = SC_MAX_APDU_BUFFER_SIZE;
|
|||
|
r = construct_fci(file, sbuf, &len);
|
|||
|
SC_TEST_RET(card->ctx, r, "construct_fci() failed");
|
|||
|
|
|||
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xE0, 0x00, 0x00);
|
|||
|
apdu.lc = len;
|
|||
|
apdu.datalen = len;
|
|||
|
apdu.data = sbuf;
|
|||
|
apdu.resplen = sizeof(rbuf);
|
|||
|
apdu.resp = rbuf;
|
|||
|
|
|||
|
r = sc_transmit_apdu(card, &apdu);
|
|||
|
SC_TEST_RET(card->ctx, r, "APDU transmit failed");
|
|||
|
SC_FUNC_RETURN(card->ctx, 1, sc_sw_to_errorcode(card, apdu.sw1, apdu.sw2));
|
|||
|
}
|
|||
|
|
|||
|
int sc_delete_file(struct sc_card *card, int file_id)
|
|||
|
{
|
|||
|
int r;
|
|||
|
u8 sbuf[2];
|
|||
|
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
|
|||
|
struct sc_apdu apdu;
|
|||
|
|
|||
|
SC_FUNC_CALLED(card->ctx, 1);
|
|||
|
sbuf[0] = (file_id >> 8) & 0xFF;
|
|||
|
sbuf[1] = file_id & 0xFF;
|
|||
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xE4, 0x00, 0x00);
|
|||
|
apdu.lc = 2;
|
|||
|
apdu.datalen = 2;
|
|||
|
apdu.data = sbuf;
|
|||
|
apdu.resplen = sizeof(rbuf);
|
|||
|
apdu.resp = rbuf;
|
|||
|
|
|||
|
r = sc_transmit_apdu(card, &apdu);
|
|||
|
SC_TEST_RET(card->ctx, r, "APDU transmit failed");
|
|||
|
if (apdu.resplen != 0)
|
|||
|
SC_FUNC_RETURN(card->ctx, 1, SC_ERROR_ILLEGAL_RESPONSE);
|
|||
|
SC_FUNC_RETURN(card->ctx, 1, sc_sw_to_errorcode(card, apdu.sw1, apdu.sw2));
|
|||
|
}
|
|||
|
|
|||
|
int sc_file_valid(const struct sc_file *file)
|
|||
|
{
|
|||
|
assert(file != NULL);
|
|||
|
|
|||
|
return file->magic == SC_FILE_MAGIC;
|
|||
|
}
|
|||
|
|
|||
|
int sc_read_binary(struct sc_card *card, unsigned int idx,
|
|||
|
unsigned char *buf, size_t count)
|
|||
|
{
|
|||
|
#define RB_BUF_SIZE 250
|
|||
|
int r;
|
|||
|
|
|||
|
assert(card != NULL && card->ops != NULL && buf != NULL);
|
|||
|
if (card->ctx->debug >= 2)
|
|||
|
debug(card->ctx, "sc_read_binary: %d bytes at index %d\n", count, idx);
|
|||
|
if (count > RB_BUF_SIZE) {
|
|||
|
int bytes_read = 0;
|
|||
|
unsigned char *p = buf;
|
|||
|
|
|||
|
if (card->ops->read_binary_large != NULL) {
|
|||
|
r = card->ops->read_binary_large(card, idx, buf, count);
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, r);
|
|||
|
}
|
|||
|
/* no read_binary_large support... */
|
|||
|
while (count > 0) {
|
|||
|
int n = count > RB_BUF_SIZE ? RB_BUF_SIZE : count;
|
|||
|
r = sc_read_binary(card, idx, p, n);
|
|||
|
SC_TEST_RET(card->ctx, r, "sc_read_binary() failed");
|
|||
|
p += r;
|
|||
|
idx += r;
|
|||
|
bytes_read += r;
|
|||
|
count -= r;
|
|||
|
if (r == 0)
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, bytes_read);
|
|||
|
}
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, bytes_read);
|
|||
|
}
|
|||
|
if (card->ops->read_binary == NULL)
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, SC_ERROR_NOT_SUPPORTED);
|
|||
|
r = card->ops->read_binary(card, idx, buf, count);
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, r);
|
|||
|
}
|
|||
|
|
|||
|
int sc_select_file(struct sc_card *card,
|
|||
|
struct sc_file *file,
|
|||
|
const struct sc_path *in_path)
|
|||
|
{
|
|||
|
int r;
|
|||
|
|
|||
|
assert(card != NULL && in_path != NULL);
|
|||
|
if (card->ctx->debug >= 2) {
|
|||
|
char line[128], *linep = line;
|
|||
|
|
|||
|
linep += sprintf(linep, "called with type %d, path ", in_path->type);
|
|||
|
for (r = 0; r < in_path->len; r++) {
|
|||
|
sprintf(linep, "%02X", in_path->value[r]);
|
|||
|
linep += 2;
|
|||
|
}
|
|||
|
strcpy(linep, "\n");
|
|||
|
debug(card->ctx, line);
|
|||
|
}
|
|||
|
if (in_path->len > SC_MAX_PATH_SIZE)
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, SC_ERROR_INVALID_ARGUMENTS);
|
|||
|
if (card->ops->select_file == NULL)
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, SC_ERROR_NOT_SUPPORTED);
|
|||
|
r = card->ops->select_file(card, file, in_path);
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, r);
|
|||
|
}
|
|||
|
|
|||
|
int sc_get_challenge(struct sc_card *card, u8 *rnd, size_t len)
|
|||
|
{
|
|||
|
int r;
|
|||
|
|
|||
|
assert(card != NULL);
|
|||
|
SC_FUNC_CALLED(card->ctx, 2);
|
|||
|
if (card->ops->get_challenge == NULL)
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, SC_ERROR_NOT_SUPPORTED);
|
|||
|
r = card->ops->get_challenge(card, rnd, len);
|
|||
|
SC_FUNC_RETURN(card->ctx, 2, r);
|
|||
|
}
|