900 lines
28 KiB
C
900 lines
28 KiB
C
/*
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* card-tcos.c: Support for TCOS 2.0 cards
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*
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* Copyright (C) 2001 Juha Yrjölä <juha.yrjola@iki.fi>
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* Copyright (C) 2002 g10 Code GmbH
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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 "internal.h"
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#include "asn1.h"
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#include "cardctl.h"
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#include <string.h>
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#include <ctype.h>
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#include <time.h>
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#include <stdlib.h>
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static struct sc_atr_table tcos_atrs[] = {
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/* SLE44 */
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{ "3B:BA:13:00:81:31:86:5D:00:64:05:0A:02:01:31:80:90:00:8B", NULL, NULL, SC_CARD_TYPE_TCOS_GENERIC, 0, NULL },
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/* SLE66S */
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{ "3B:BA:14:00:81:31:86:5D:00:64:05:14:02:02:31:80:90:00:91", NULL, NULL, SC_CARD_TYPE_TCOS_GENERIC, 0, NULL },
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/* SLE66CX320P */
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{ "3B:BA:96:00:81:31:86:5D:00:64:05:60:02:03:31:80:90:00:66", NULL, NULL, SC_CARD_TYPE_TCOS_GENERIC, 0, NULL },
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/* SLE66CX322P */
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{ "3B:BA:96:00:81:31:86:5D:00:64:05:7B:02:03:31:80:90:00:7D", NULL, NULL, SC_CARD_TYPE_TCOS_GENERIC, 0, NULL },
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{ NULL, NULL, NULL, 0, 0, NULL }
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};
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static struct sc_card_operations tcos_ops;
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static struct sc_card_driver tcos_drv = {
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"TCOS 2.0",
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"tcos",
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&tcos_ops,
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NULL, 0, NULL
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};
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static const struct sc_card_operations *iso_ops = NULL;
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typedef struct tcos_data_st {
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unsigned int pad_flags;
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unsigned int sign_with_def_env;
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} tcos_data;
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static int tcos_finish(sc_card_t *card)
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{
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free(card->drv_data);
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return 0;
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}
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static int tcos_match_card(sc_card_t *card)
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{
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int i;
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i = _sc_match_atr(card, tcos_atrs, &card->type);
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if (i < 0)
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return 0;
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return 1;
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}
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static int tcos_init(sc_card_t *card)
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{
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unsigned long flags;
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tcos_data *data = (tcos_data *) malloc(sizeof(tcos_data));
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if (!data)
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return SC_ERROR_OUT_OF_MEMORY;
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card->name = "TCOS";
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card->drv_data = (void *)data;
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card->cla = 0x00;
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flags = SC_ALGORITHM_RSA_RAW;
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flags |= SC_ALGORITHM_RSA_PAD_PKCS1;
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flags |= SC_ALGORITHM_RSA_HASH_NONE;
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_sc_card_add_rsa_alg(card, 512, flags, 0);
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_sc_card_add_rsa_alg(card, 768, flags, 0);
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_sc_card_add_rsa_alg(card, 1024, flags, 0);
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return 0;
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}
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/* Hmmm, I don't know what to do. It seems that the ACL design of
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OpenSC should be enhanced to allow for the command based security
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attributes of TCOS. FIXME: This just allows to create a very basic
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file. */
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static int tcos_construct_fci(const sc_file_t *file,
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u8 *out, size_t *outlen)
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{
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u8 *p = out;
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u8 buf[64];
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size_t n;
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/* FIXME: possible buffer overflow */
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*p++ = 0x6F; /* FCI */
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p++;
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/* File size */
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buf[0] = (file->size >> 8) & 0xFF;
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buf[1] = file->size & 0xFF;
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sc_asn1_put_tag(0x81, buf, 2, p, 16, &p);
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/* File descriptor */
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n = 0;
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buf[n] = file->shareable ? 0x40 : 0;
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switch (file->type) {
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case SC_FILE_TYPE_WORKING_EF:
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break;
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case SC_FILE_TYPE_DF:
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buf[0] |= 0x38;
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break;
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default:
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return SC_ERROR_NOT_SUPPORTED;
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}
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buf[n++] |= file->ef_structure & 7;
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if ( (file->ef_structure & 7) > 1) {
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/* record structured file */
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buf[n++] = 0x41; /* indicate 3rd byte */
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buf[n++] = file->record_length;
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}
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sc_asn1_put_tag(0x82, buf, n, p, 8, &p);
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/* File identifier */
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buf[0] = (file->id >> 8) & 0xFF;
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buf[1] = file->id & 0xFF;
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sc_asn1_put_tag(0x83, buf, 2, p, 16, &p);
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/* Directory name */
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if (file->type == SC_FILE_TYPE_DF) {
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if (file->namelen) {
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if (file->namelen > 16 || !file->name)
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return SC_ERROR_INVALID_ARGUMENTS;
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sc_asn1_put_tag(0x84, file->name, file->namelen,
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p, 16, &p);
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}
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else {
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/* TCOS needs one, so we use a faked one */
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snprintf ((char *) buf, sizeof(buf)-1, "foo-%lu",
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(unsigned long) time (NULL));
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sc_asn1_put_tag(0x84, buf, strlen ((char *) buf), p, 16, &p);
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}
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}
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/* File descriptor extension */
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if (file->prop_attr_len && file->prop_attr) {
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n = file->prop_attr_len;
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memcpy(buf, file->prop_attr, n);
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}
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else {
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n = 0;
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buf[n++] = 0x01; /* not invalidated, permanent */
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if (file->type == SC_FILE_TYPE_WORKING_EF)
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buf[n++] = 0x00; /* generic data file */
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}
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sc_asn1_put_tag(0x85, buf, n, p, 16, &p);
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/* Security attributes */
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if (file->sec_attr_len && file->sec_attr) {
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memcpy(buf, file->sec_attr, file->sec_attr_len);
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n = file->sec_attr_len;
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}
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else {
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/* no attributes given - fall back to default one */
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memcpy (buf+ 0, "\xa4\x00\x00\x00\xff\xff", 6); /* select */
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memcpy (buf+ 6, "\xb0\x00\x00\x00\xff\xff", 6); /* read bin */
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memcpy (buf+12, "\xd6\x00\x00\x00\xff\xff", 6); /* upd bin */
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memcpy (buf+18, "\x60\x00\x00\x00\xff\xff", 6); /* admin grp*/
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n = 24;
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}
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sc_asn1_put_tag(0x86, buf, n, p, sizeof (buf), &p);
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/* fixup length of FCI */
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out[1] = p - out - 2;
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*outlen = p - out;
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return 0;
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}
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static int tcos_create_file(sc_card_t *card, sc_file_t *file)
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{
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int r;
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size_t len;
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u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
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sc_apdu_t apdu;
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len = SC_MAX_APDU_BUFFER_SIZE;
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r = tcos_construct_fci(file, sbuf, &len);
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SC_TEST_RET(card->ctx, r, "tcos_construct_fci() failed");
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sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xE0, 0x00, 0x00);
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apdu.cla |= 0x80; /* this is an proprietary extension */
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apdu.lc = len;
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apdu.datalen = len;
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apdu.data = sbuf;
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r = sc_transmit_apdu(card, &apdu);
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SC_TEST_RET(card->ctx, r, "APDU transmit failed");
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return sc_check_sw(card, apdu.sw1, apdu.sw2);
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}
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static unsigned int map_operations (int commandbyte )
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{
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unsigned int op = (unsigned int)-1;
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switch ( (commandbyte & 0xfe) )
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{
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case 0xe2: /* append record */ op = SC_AC_OP_UPDATE; break;
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case 0x24: /* change password */ op = SC_AC_OP_UPDATE; break;
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case 0xe0: /* create */ op = SC_AC_OP_CREATE; break;
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case 0xe4: /* delete */ op = SC_AC_OP_DELETE; break;
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case 0xe8: /* exclude sfi */ op = SC_AC_OP_WRITE; break;
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case 0x82: /* external auth */ op = SC_AC_OP_READ; break;
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case 0xe6: /* include sfi */ op = SC_AC_OP_WRITE; break;
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case 0x88: /* internal auth */ op = SC_AC_OP_READ; break;
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case 0x04: /* invalidate */ op = SC_AC_OP_INVALIDATE; break;
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case 0x2a: /* perform sec. op */ op = SC_AC_OP_SELECT; break;
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case 0xb0: /* read binary */ op = SC_AC_OP_READ; break;
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case 0xb2: /* read record */ op = SC_AC_OP_READ; break;
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case 0x44: /* rehabilitate */ op = SC_AC_OP_REHABILITATE; break;
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case 0xa4: /* select */ op = SC_AC_OP_SELECT; break;
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case 0xee: /* set permanent */ op = SC_AC_OP_CREATE; break;
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case 0x2c: /* unblock password */op = SC_AC_OP_WRITE; break;
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case 0xd6: /* update binary */ op = SC_AC_OP_WRITE; break;
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case 0xdc: /* update record */ op = SC_AC_OP_WRITE; break;
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case 0x20: /* verify password */ op = SC_AC_OP_SELECT; break;
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case 0x60: /* admin group */ op = SC_AC_OP_CREATE; break;
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}
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return op;
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}
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/* Hmmm, I don't know what to do. It seems that the ACL design of
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OpenSC should be enhanced to allow for the command based security
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attributes of TCOS. FIXME: This just allows to create a very basic
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file. */
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static void parse_sec_attr(sc_card_t *card,
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sc_file_t *file, const u8 *buf, size_t len)
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{
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unsigned int op;
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/* list directory is not covered by ACLs - so always add an entry */
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sc_file_add_acl_entry (file, SC_AC_OP_LIST_FILES,
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SC_AC_NONE, SC_AC_KEY_REF_NONE);
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/* FIXME: check for what LOCK is used */
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sc_file_add_acl_entry (file, SC_AC_OP_LOCK,
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SC_AC_NONE, SC_AC_KEY_REF_NONE);
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for (; len >= 6; len -= 6, buf += 6) {
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/* FIXME: temporary hacks */
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if (!memcmp(buf, "\xa4\x00\x00\x00\xff\xff", 6)) /* select */
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sc_file_add_acl_entry (file, SC_AC_OP_SELECT,
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SC_AC_NONE, SC_AC_KEY_REF_NONE);
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else if (!memcmp(buf, "\xb0\x00\x00\x00\xff\xff", 6)) /*read*/
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sc_file_add_acl_entry (file, SC_AC_OP_READ,
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SC_AC_NONE, SC_AC_KEY_REF_NONE);
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else if (!memcmp(buf, "\xd6\x00\x00\x00\xff\xff", 6)) /*upd*/
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sc_file_add_acl_entry (file, SC_AC_OP_UPDATE,
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SC_AC_NONE, SC_AC_KEY_REF_NONE);
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else if (!memcmp(buf, "\x60\x00\x00\x00\xff\xff", 6)) {/*adm */
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sc_file_add_acl_entry (file, SC_AC_OP_WRITE,
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SC_AC_NONE, SC_AC_KEY_REF_NONE);
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sc_file_add_acl_entry (file, SC_AC_OP_CREATE,
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SC_AC_NONE, SC_AC_KEY_REF_NONE);
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sc_file_add_acl_entry (file, SC_AC_OP_INVALIDATE,
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SC_AC_NONE, SC_AC_KEY_REF_NONE);
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sc_file_add_acl_entry (file, SC_AC_OP_REHABILITATE,
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SC_AC_NONE, SC_AC_KEY_REF_NONE);
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}
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else {
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/* the first byte tells use the command or the
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command group. We have to mask bit 0
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because this one distinguish between AND/OR
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combination of PINs*/
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op = map_operations (buf[0]);
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if (op == (unsigned int)-1)
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{
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sc_debug (card->ctx,
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"Unknown security command byte %02x\n",
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buf[0]);
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continue;
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}
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if (!buf[1])
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sc_file_add_acl_entry (file, op,
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SC_AC_NONE,
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SC_AC_KEY_REF_NONE);
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else
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sc_file_add_acl_entry (file, op,
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SC_AC_CHV, buf[1]);
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if (!buf[2] && !buf[3])
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sc_file_add_acl_entry (file, op,
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SC_AC_NONE,
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SC_AC_KEY_REF_NONE);
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else
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sc_file_add_acl_entry (file, op,
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SC_AC_TERM,
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(buf[2]<<8)|buf[3]);
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}
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}
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}
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/* Arghh. duplicated from iso7816.c */
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static void tcos_process_fci(sc_context_t *ctx, sc_file_t *file,
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const u8 *buf, size_t buflen)
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{
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size_t taglen, len = buflen;
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const u8 *tag = NULL, *p = buf;
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if (ctx->debug >= 3)
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sc_debug(ctx, "processing FCI bytes\n");
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tag = sc_asn1_find_tag(ctx, p, len, 0x83, &taglen);
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if (tag != NULL && taglen == 2) {
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file->id = (tag[0] << 8) | tag[1];
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if (ctx->debug >= 3)
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sc_debug(ctx, " file identifier: 0x%02X%02X\n", tag[0],
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tag[1]);
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}
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tag = sc_asn1_find_tag(ctx, p, len, 0x81, &taglen);
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if (tag != NULL && taglen >= 2) {
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int bytes = (tag[0] << 8) + tag[1];
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if (ctx->debug >= 3)
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sc_debug(ctx, " bytes in file: %d\n", bytes);
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file->size = bytes;
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}
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if (tag == NULL) {
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tag = sc_asn1_find_tag(ctx, p, len, 0x80, &taglen);
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if (tag != NULL && taglen >= 2) {
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int bytes = (tag[0] << 8) + tag[1];
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if (ctx->debug >= 3)
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sc_debug(ctx, " bytes in file: %d\n", bytes);
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file->size = bytes;
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}
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}
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tag = sc_asn1_find_tag(ctx, p, len, 0x82, &taglen);
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if (tag != NULL) {
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if (taglen > 0) {
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unsigned char byte = tag[0];
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const char *type;
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file->shareable = byte & 0x40 ? 1 : 0;
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if (ctx->debug >= 3)
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sc_debug(ctx, " shareable: %s\n",
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(byte & 0x40) ? "yes" : "no");
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file->ef_structure = byte & 0x07;
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switch ((byte >> 3) & 7) {
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case 0:
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type = "working EF";
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file->type = SC_FILE_TYPE_WORKING_EF;
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break;
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case 1:
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type = "internal EF";
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file->type = SC_FILE_TYPE_INTERNAL_EF;
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break;
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case 7:
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type = "DF";
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file->type = SC_FILE_TYPE_DF;
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break;
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default:
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type = "unknown";
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break;
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}
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if (ctx->debug >= 3) {
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sc_debug(ctx, " type: %s\n", type);
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sc_debug(ctx, " EF structure: %d\n",
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byte & 0x07);
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}
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}
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}
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tag = sc_asn1_find_tag(ctx, p, len, 0x84, &taglen);
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if (tag != NULL && taglen > 0 && taglen <= 16) {
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char name[17];
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size_t i;
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memcpy(file->name, tag, taglen);
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file->namelen = taglen;
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for (i = 0; i < taglen; i++) {
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if (isalnum(tag[i]) || ispunct(tag[i])
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|| isspace(tag[i]))
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name[i] = tag[i];
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else
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name[i] = '?';
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}
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name[taglen] = 0;
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if (ctx->debug >= 3)
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sc_debug(ctx, "File name: %s\n", name);
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}
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tag = sc_asn1_find_tag(ctx, p, len, 0x85, &taglen);
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if (tag != NULL && taglen) {
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sc_file_set_prop_attr(file, tag, taglen);
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} else
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file->prop_attr_len = 0;
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tag = sc_asn1_find_tag(ctx, p, len, 0xA5, &taglen);
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if (tag != NULL && taglen) {
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sc_file_set_prop_attr(file, tag, taglen);
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}
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tag = sc_asn1_find_tag(ctx, p, len, 0x86, &taglen);
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if (tag != NULL && taglen) {
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sc_file_set_sec_attr(file, tag, taglen);
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}
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file->magic = SC_FILE_MAGIC;
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}
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/* This is a special version of the standard select_file which is
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needed to cope with some starngeness in APDU construction. It is
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probably better to have this specfic for TCOS, so that support for
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other cards does not break. */
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static int hacked_iso7816_select_file(sc_card_t *card,
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const sc_path_t *in_path,
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sc_file_t **file_out)
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{
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sc_context_t *ctx;
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sc_apdu_t apdu;
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u8 buf[SC_MAX_APDU_BUFFER_SIZE];
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u8 pathbuf[SC_MAX_PATH_SIZE], *path = pathbuf;
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int r, pathlen;
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sc_file_t *file = NULL;
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assert(card != NULL && in_path != NULL);
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ctx = card->ctx;
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memcpy(path, in_path->value, in_path->len);
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pathlen = in_path->len;
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sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0xA4, 0, 0);
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switch (in_path->type) {
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case SC_PATH_TYPE_FILE_ID:
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apdu.p1 = 0;
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if (pathlen != 2)
|
|
return SC_ERROR_INVALID_ARGUMENTS;
|
|
break;
|
|
case SC_PATH_TYPE_DF_NAME:
|
|
apdu.p1 = 4;
|
|
break;
|
|
case SC_PATH_TYPE_PATH:
|
|
apdu.p1 = 8;
|
|
if (pathlen >= 2 && memcmp(path, "\x3F\x00", 2) == 0) {
|
|
if (pathlen == 2) { /* only 3F00 supplied */
|
|
apdu.p1 = 0;
|
|
break;
|
|
}
|
|
path += 2;
|
|
pathlen -= 2;
|
|
}
|
|
break;
|
|
default:
|
|
SC_FUNC_RETURN(card->ctx, 2, SC_ERROR_INVALID_ARGUMENTS);
|
|
}
|
|
apdu.p2 = 0; /* first record, return FCI */
|
|
apdu.lc = pathlen;
|
|
apdu.data = path;
|
|
apdu.datalen = pathlen;
|
|
|
|
if (file_out != NULL) {
|
|
apdu.resp = buf;
|
|
apdu.resplen = sizeof(buf);
|
|
apdu.le = 255; /* 256 will be represented as 0 which
|
|
conflicts with the apdu sanity check */
|
|
} else {
|
|
apdu.resp = buf;
|
|
apdu.resplen = sizeof(buf);
|
|
apdu.le = 255;
|
|
/* does not work apdu.cse = SC_APDU_CASE_3_SHORT;*/
|
|
}
|
|
if (!apdu.lc) /* never send an empty lc */
|
|
apdu.cse = SC_APDU_CASE_2_SHORT;
|
|
|
|
r = sc_transmit_apdu(card, &apdu);
|
|
SC_TEST_RET(card->ctx, r, "APDU transmit failed");
|
|
if (file_out == NULL) {
|
|
if (apdu.sw1 == 0x61)
|
|
SC_FUNC_RETURN(card->ctx, 2, 0);
|
|
SC_FUNC_RETURN(card->ctx, 2, sc_check_sw(card, apdu.sw1, apdu.sw2));
|
|
}
|
|
|
|
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
|
|
if (r)
|
|
SC_FUNC_RETURN(card->ctx, 2, r);
|
|
|
|
switch (apdu.resp[0]) {
|
|
case 0x6F:
|
|
file = sc_file_new();
|
|
if (file == NULL)
|
|
SC_FUNC_RETURN(card->ctx, 0, SC_ERROR_OUT_OF_MEMORY);
|
|
file->path = *in_path;
|
|
if (apdu.resp[1] <= apdu.resplen)
|
|
tcos_process_fci(card->ctx, file,
|
|
apdu.resp+2, apdu.resp[1]);
|
|
*file_out = file;
|
|
break;
|
|
case 0x00: /* proprietary coding */
|
|
SC_FUNC_RETURN(card->ctx, 2, SC_ERROR_UNKNOWN_DATA_RECEIVED);
|
|
default:
|
|
SC_FUNC_RETURN(card->ctx, 2, SC_ERROR_UNKNOWN_DATA_RECEIVED);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
static int tcos_select_file(sc_card_t *card,
|
|
const sc_path_t *in_path,
|
|
sc_file_t **file)
|
|
{
|
|
int r;
|
|
|
|
/*r = iso_ops->select_file(card, in_path, file);*/
|
|
r = hacked_iso7816_select_file(card, in_path, file);
|
|
if (r)
|
|
return r;
|
|
|
|
if (file) {
|
|
parse_sec_attr(card, (*file), (*file)->sec_attr,
|
|
(*file)->sec_attr_len);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tcos_list_files(sc_card_t *card, u8 *buf, size_t buflen)
|
|
{
|
|
sc_apdu_t apdu;
|
|
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
|
|
u8 p1s[2] = { 0x01, 0x02 };
|
|
int r, i, count = 0;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xAA, p1s[i], 0);
|
|
apdu.cla = 0x80;
|
|
apdu.resp = rbuf;
|
|
apdu.resplen = sizeof(rbuf);
|
|
apdu.le = 256;
|
|
r = sc_transmit_apdu(card, &apdu);
|
|
SC_TEST_RET(card->ctx, r, "APDU transmit failed");
|
|
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
|
|
if (r == SC_ERROR_FILE_NOT_FOUND)
|
|
continue;
|
|
SC_TEST_RET(card->ctx, r, "Card returned error");
|
|
if (apdu.resplen > buflen)
|
|
return SC_ERROR_BUFFER_TOO_SMALL;
|
|
memcpy(buf, apdu.resp, apdu.resplen);
|
|
buf += apdu.resplen;
|
|
buflen -= apdu.resplen;
|
|
count += apdu.resplen;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
|
|
|
|
static int tcos_delete_file(sc_card_t *card, const sc_path_t *path)
|
|
{
|
|
int r;
|
|
u8 sbuf[2];
|
|
sc_apdu_t apdu;
|
|
|
|
SC_FUNC_CALLED(card->ctx, 1);
|
|
if (path->type != SC_PATH_TYPE_FILE_ID && path->len != 2) {
|
|
sc_error(card->ctx, "File type has to be SC_PATH_TYPE_FILE_ID\n");
|
|
SC_FUNC_RETURN(card->ctx, 1, SC_ERROR_INVALID_ARGUMENTS);
|
|
}
|
|
sbuf[0] = path->value[0];
|
|
sbuf[1] = path->value[1];
|
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xE4, 0x00, 0x00);
|
|
apdu.cla |= 0x80;
|
|
apdu.lc = 2;
|
|
apdu.datalen = 2;
|
|
apdu.data = sbuf;
|
|
|
|
r = sc_transmit_apdu(card, &apdu);
|
|
SC_TEST_RET(card->ctx, r, "APDU transmit failed");
|
|
return sc_check_sw(card, apdu.sw1, apdu.sw2);
|
|
}
|
|
|
|
/* Crypto operations */
|
|
|
|
|
|
/* TCOS has two kind of RSA-keys: signature-keys and encryption-keys
|
|
signature-keys: can be used for sign-operations only and can be used
|
|
only within the default security environment. hence must be
|
|
stored as local key 0, a SetSecEnv-cmd must not be used (if you
|
|
do - even with default parameters - it will fail with 6A88)
|
|
encryption-keys: can be used for both sign- and decipher-operations,
|
|
can be used within any security environment, a SetSecEnv-cmd
|
|
must be used (even if you want to use the default security environment
|
|
you must a SetSecEnv-cmd with default parameters)
|
|
Unfortunately we cannot find out wether the referenced key is a
|
|
signature-key or encryption-key when this routine is called. Therefore
|
|
we have a problem if the key-reference is 0x80. If the referenced key
|
|
was a signature-key a SetSecEnv must not be used, if the key was an
|
|
encryption-key it must be used.
|
|
Therefore we suppress error-messages in this case, try a SetSecEnv-cmd
|
|
with default parameters and watch out for 6A88-responses [pk_opensc@web.de]
|
|
*/
|
|
static int tcos_set_security_env(sc_card_t *card,
|
|
const sc_security_env_t *env,
|
|
int se_num)
|
|
{
|
|
sc_context_t *ctx;
|
|
sc_apdu_t apdu;
|
|
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE], *p;
|
|
int r, sign_with_def_env=0;
|
|
|
|
assert(card != NULL && env != NULL);
|
|
ctx = card->ctx;
|
|
|
|
if (se_num) SC_FUNC_RETURN(ctx, 1, SC_ERROR_INVALID_ARGUMENTS);
|
|
|
|
if(ctx->debug >= 3) sc_debug(ctx, "Security Environment %d:%02X\n", env->key_ref_len, *env->key_ref);
|
|
if(env->operation == SC_SEC_OPERATION_SIGN &&
|
|
(!(env->flags & SC_SEC_ENV_KEY_REF_PRESENT) || (env->key_ref_len==1 && *env->key_ref==0x80))
|
|
){
|
|
if (ctx->debug >= 3) sc_debug(ctx, "Sign-Operation with Default Security Environment\n");
|
|
sign_with_def_env=1;
|
|
}
|
|
|
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x22, 0, 0);
|
|
switch (env->operation) {
|
|
case SC_SEC_OPERATION_DECIPHER:
|
|
case SC_SEC_OPERATION_SIGN:
|
|
apdu.p1 = 0xC1;
|
|
apdu.p2 = 0xB8;
|
|
/* save padding flags and default secEnv indictor */
|
|
((tcos_data *)card->drv_data)->pad_flags = env->algorithm_flags;
|
|
((tcos_data *)card->drv_data)->sign_with_def_env = sign_with_def_env;
|
|
break;
|
|
default:
|
|
return SC_ERROR_INVALID_ARGUMENTS;
|
|
}
|
|
|
|
apdu.le = 0;
|
|
p = sbuf;
|
|
if (env->flags & SC_SEC_ENV_ALG_REF_PRESENT) {
|
|
*p++ = 0x80; /* algorithm reference */
|
|
*p++ = 0x01;
|
|
*p++ = env->algorithm_ref & 0xFF;
|
|
}
|
|
if (env->flags & SC_SEC_ENV_KEY_REF_PRESENT) {
|
|
*p++ = (env->flags & SC_SEC_ENV_KEY_REF_ASYMMETRIC) ? 0x83 : 0x84;
|
|
*p++ = env->key_ref_len;
|
|
memcpy(p, env->key_ref, env->key_ref_len);
|
|
p += env->key_ref_len;
|
|
}
|
|
r = p - sbuf;
|
|
apdu.lc = r;
|
|
apdu.datalen = r;
|
|
apdu.data = sbuf;
|
|
apdu.resplen = 0;
|
|
|
|
if (apdu.datalen != 0) {
|
|
r = sc_transmit_apdu(card, &apdu);
|
|
if (r) {
|
|
sc_perror(ctx, r, "APDU transmit failed");
|
|
return r;
|
|
}
|
|
if (sign_with_def_env && apdu.sw1==0x6A && apdu.sw2==0x88) return 0;
|
|
((tcos_data *)card->drv_data)->sign_with_def_env = sign_with_def_env = 0;
|
|
|
|
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
|
|
if (r) {
|
|
sc_perror(ctx, r, "Card returned error");
|
|
return r;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* See tcos_set_security_env() for comments. So we always return
|
|
success */
|
|
static int tcos_restore_security_env(sc_card_t *card, int se_num)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* TCOS compute_signature command. As TCOS can compute signatures
|
|
* with the default security environment only, signatures with other
|
|
* security environments are computed by encrypting the pkcs1-padded data
|
|
*/
|
|
static int tcos_compute_signature(sc_card_t *card, const u8 * data, size_t datalen, u8 * out, size_t outlen)
|
|
{
|
|
int r;
|
|
size_t i;
|
|
sc_apdu_t apdu;
|
|
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
|
|
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
|
|
|
|
assert(card != NULL && data != NULL && out != NULL);
|
|
|
|
if (datalen > 255) SC_FUNC_RETURN(card->ctx, 4, SC_ERROR_INVALID_ARGUMENTS);
|
|
|
|
if(((tcos_data *)card->drv_data)->sign_with_def_env){
|
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0x2A, 0x9E, 0x9A);
|
|
memcpy(sbuf, data, datalen);
|
|
} else {
|
|
unsigned int keylen=128; /* FIXME: use correct key-size */
|
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0x2A, 0x80, 0x84);
|
|
for(i = 0; i < sizeof(sbuf); ++i)
|
|
sbuf[i]=0xff;
|
|
sbuf[0]=0x00; sbuf[1]=0x01; sbuf[keylen-datalen-1]=0x00;
|
|
memcpy(sbuf+keylen-datalen, data, datalen);
|
|
datalen=keylen;
|
|
}
|
|
apdu.resp = rbuf;
|
|
apdu.resplen = sizeof(rbuf);
|
|
apdu.le = 256;
|
|
|
|
apdu.data = sbuf;
|
|
apdu.lc = datalen;
|
|
apdu.datalen = datalen;
|
|
apdu.sensitive = 1;
|
|
r = sc_transmit_apdu(card, &apdu);
|
|
SC_TEST_RET(card->ctx, r, "APDU transmit failed");
|
|
if (apdu.sw1 == 0x90 && apdu.sw2 == 0x00) {
|
|
size_t len = apdu.resplen > outlen ? outlen : apdu.resplen;
|
|
|
|
memcpy(out, apdu.resp, len);
|
|
SC_FUNC_RETURN(card->ctx, 4, len);
|
|
}
|
|
SC_FUNC_RETURN(card->ctx, 4, sc_check_sw(card, apdu.sw1, apdu.sw2));
|
|
}
|
|
|
|
/**
|
|
* TCOS decipher command (same as iso7816_decipher besides setting
|
|
* the padding byte).
|
|
*/
|
|
static int tcos_decipher(sc_card_t *card,
|
|
const u8 * crgram, size_t crgram_len,
|
|
u8 * out, size_t outlen)
|
|
{
|
|
int r;
|
|
sc_apdu_t apdu;
|
|
tcos_data *xdata;
|
|
u8 pad_byte;
|
|
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
|
|
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
|
|
|
|
assert(card != NULL && crgram != NULL && out != NULL);
|
|
SC_FUNC_CALLED(card->ctx, 2);
|
|
if (crgram_len > 255)
|
|
SC_FUNC_RETURN(card->ctx, 2, SC_ERROR_INVALID_ARGUMENTS);
|
|
|
|
/* INS: 0x2A PERFORM SECURITY OPERATION
|
|
* P1: 0x80 Resp: Plain value
|
|
* P2: 0x86 Cmd: Padding indicator byte followed by cryptogram */
|
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0x2A, 0x80, 0x86);
|
|
apdu.resp = rbuf;
|
|
apdu.resplen = sizeof(rbuf);
|
|
apdu.le = crgram_len;
|
|
apdu.sensitive = 1;
|
|
|
|
xdata = (tcos_data *)card->drv_data;
|
|
if (xdata->pad_flags & SC_ALGORITHM_RSA_PAD_PKCS1)
|
|
pad_byte = 0x81; /* pkcs1 padding */
|
|
else
|
|
pad_byte = 0x02; /* no padding */
|
|
/* Note: the 'ISO' padding (0x80, 0x00, 0x00 ...) supported
|
|
* by TCOS cards is ignored here as OpenSC doesn't support it
|
|
* -- Nils
|
|
*/
|
|
|
|
sbuf[0] = pad_byte;
|
|
memcpy(sbuf + 1, crgram, crgram_len);
|
|
apdu.data = sbuf;
|
|
apdu.lc = crgram_len + 1;
|
|
apdu.datalen = crgram_len + 1;
|
|
r = sc_transmit_apdu(card, &apdu);
|
|
SC_TEST_RET(card->ctx, r, "APDU transmit failed");
|
|
if (apdu.sw1 == 0x90 && apdu.sw2 == 0x00) {
|
|
size_t len = apdu.resplen > outlen ? outlen : apdu.resplen;
|
|
|
|
memcpy(out, apdu.resp, len);
|
|
SC_FUNC_RETURN(card->ctx, 2, len);
|
|
}
|
|
SC_FUNC_RETURN(card->ctx, 2, sc_check_sw(card, apdu.sw1, apdu.sw2));
|
|
}
|
|
|
|
|
|
/* Issue the SET PERMANENT command. With ENABLE_NULLPIN set the
|
|
NullPIN method will be activated, otherwise the permanent operation
|
|
will be done on the active file. */
|
|
static int tcos_setperm(sc_card_t *card, int enable_nullpin)
|
|
{
|
|
int r;
|
|
sc_apdu_t apdu;
|
|
|
|
SC_FUNC_CALLED(card->ctx, 1);
|
|
sc_format_apdu(card, &apdu, SC_APDU_CASE_1, 0xEE, 0x00, 0x00);
|
|
apdu.cla |= 0x80;
|
|
apdu.lc = 0;
|
|
apdu.datalen = 0;
|
|
apdu.data = NULL;
|
|
|
|
r = sc_transmit_apdu(card, &apdu);
|
|
SC_TEST_RET(card->ctx, r, "APDU transmit failed");
|
|
return sc_check_sw(card, apdu.sw1, apdu.sw2);
|
|
}
|
|
|
|
/* read the card serial number from the EF_gdo system file */
|
|
static int tcos_get_serialnr(sc_card_t *card, sc_serial_number_t *serial)
|
|
{
|
|
int r;
|
|
u8 buf[64];
|
|
size_t len;
|
|
sc_path_t tpath;
|
|
sc_file_t *tfile = NULL;
|
|
|
|
if (!serial)
|
|
return SC_ERROR_INVALID_ARGUMENTS;
|
|
/* see if we have cached serial number */
|
|
if (card->serialnr.len) {
|
|
memcpy(serial, &card->serialnr, sizeof(*serial));
|
|
return SC_SUCCESS;
|
|
}
|
|
/* read EF_gdo */
|
|
sc_format_path("3F002F02", &tpath);
|
|
r = sc_select_file(card, &tpath, &tfile);
|
|
if (r < 0)
|
|
return r;
|
|
len = tfile->size;
|
|
sc_file_free(tfile);
|
|
if (len > sizeof(buf) || len < 12)
|
|
return SC_ERROR_INTERNAL;
|
|
r = sc_read_binary(card, 0, buf, len, 0);
|
|
if (r < 0)
|
|
return r;
|
|
if (buf[0] != 0x5a || buf[1] > len - 2)
|
|
return SC_ERROR_INTERNAL;
|
|
card->serialnr.len = buf[1];
|
|
memcpy(card->serialnr.value, buf+2, buf[1]);
|
|
|
|
memcpy(serial, &card->serialnr, sizeof(*serial));
|
|
|
|
return SC_SUCCESS;
|
|
}
|
|
|
|
static int tcos_card_ctl(sc_card_t *card, unsigned long cmd, void *ptr)
|
|
{
|
|
switch (cmd) {
|
|
case SC_CARDCTL_TCOS_SETPERM:
|
|
return tcos_setperm(card, !!ptr);
|
|
case SC_CARDCTL_GET_SERIALNR:
|
|
return tcos_get_serialnr(card, (sc_serial_number_t *)ptr);
|
|
}
|
|
return SC_ERROR_NOT_SUPPORTED;
|
|
}
|
|
|
|
|
|
/* Driver binding stuff */
|
|
static struct sc_card_driver * sc_get_driver(void)
|
|
{
|
|
struct sc_card_driver *iso_drv = sc_get_iso7816_driver();
|
|
|
|
tcos_ops = *iso_drv->ops;
|
|
tcos_ops.match_card = tcos_match_card;
|
|
tcos_ops.init = tcos_init;
|
|
tcos_ops.finish = tcos_finish;
|
|
if (iso_ops == NULL)
|
|
iso_ops = iso_drv->ops;
|
|
tcos_ops.create_file = tcos_create_file;
|
|
tcos_ops.set_security_env = tcos_set_security_env;
|
|
tcos_ops.select_file = tcos_select_file;
|
|
tcos_ops.list_files = tcos_list_files;
|
|
tcos_ops.delete_file = tcos_delete_file;
|
|
tcos_ops.set_security_env = tcos_set_security_env;
|
|
tcos_ops.compute_signature = tcos_compute_signature;
|
|
tcos_ops.decipher = tcos_decipher;
|
|
tcos_ops.restore_security_env = tcos_restore_security_env;
|
|
tcos_ops.card_ctl = tcos_card_ctl;
|
|
|
|
return &tcos_drv;
|
|
}
|
|
|
|
struct sc_card_driver * sc_get_tcos_driver(void)
|
|
{
|
|
return sc_get_driver();
|
|
}
|