2001-11-06 18:34:19 +00:00
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/*
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2002-01-13 23:56:13 +00:00
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* pkcs15-pin.c: PKCS #15 PIN functions
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2001-11-01 15:43:20 +00:00
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*
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2001-11-06 18:34:19 +00:00
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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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2001-11-01 15:43:20 +00:00
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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2001-11-06 18:34:19 +00:00
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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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2001-11-01 15:43:20 +00:00
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*
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2001-11-06 18:34:19 +00:00
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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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2001-11-01 15:43:20 +00:00
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*/
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2001-12-25 20:45:48 +00:00
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#include "sc-internal.h"
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2001-11-24 13:32:52 +00:00
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#include "opensc-pkcs15.h"
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2001-11-06 18:34:19 +00:00
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#include "sc-asn1.h"
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2001-12-16 18:46:32 +00:00
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#include "sc-log.h"
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2001-11-01 15:43:20 +00:00
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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2002-01-17 23:47:03 +00:00
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static const struct sc_asn1_entry c_asn1_com_ao_attr[] = {
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{ "authId", SC_ASN1_PKCS15_ID, ASN1_OCTET_STRING, 0, NULL },
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{ NULL }
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};
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static const struct sc_asn1_entry c_asn1_pin_attr[] = {
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{ "pinFlags", SC_ASN1_BIT_STRING, ASN1_BIT_STRING, 0, NULL },
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{ "pinType", SC_ASN1_ENUMERATED, ASN1_ENUMERATED, 0, NULL },
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{ "minLength", SC_ASN1_INTEGER, ASN1_INTEGER, 0, NULL },
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{ "storedLength", SC_ASN1_INTEGER, ASN1_INTEGER, 0, NULL },
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{ "maxLength", SC_ASN1_INTEGER, ASN1_INTEGER, SC_ASN1_OPTIONAL, NULL },
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{ "pinReference", SC_ASN1_INTEGER, SC_ASN1_CTX | 0, SC_ASN1_OPTIONAL, NULL },
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{ "padChar", SC_ASN1_OCTET_STRING, ASN1_OCTET_STRING, SC_ASN1_OPTIONAL, NULL },
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{ "lastPinChange",SC_ASN1_GENERALIZEDTIME, ASN1_GENERALIZEDTIME, SC_ASN1_OPTIONAL, NULL },
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{ "path", SC_ASN1_PATH, ASN1_SEQUENCE | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL },
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{ NULL }
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};
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static const struct sc_asn1_entry c_asn1_type_pin_attr[] = {
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{ "pinAttributes", SC_ASN1_STRUCT, ASN1_SEQUENCE | SC_ASN1_CONS, 0, NULL },
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{ NULL }
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};
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static const struct sc_asn1_entry c_asn1_pin[] = {
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{ "pin", SC_ASN1_PKCS15_OBJECT, ASN1_SEQUENCE | SC_ASN1_CONS, 0, NULL },
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{ NULL }
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};
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2002-01-24 16:02:54 +00:00
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int sc_pkcs15_decode_aodf_entry(struct sc_pkcs15_card *p15card,
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struct sc_pkcs15_object *obj,
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const u8 ** buf, size_t *buflen)
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2001-11-01 15:43:20 +00:00
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{
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2002-01-24 16:02:54 +00:00
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struct sc_context *ctx = p15card->card->ctx;
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struct sc_pkcs15_pin_info info;
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2001-12-21 23:34:47 +00:00
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int r;
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2002-01-24 16:02:54 +00:00
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int flags_len = sizeof(info.flags);
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2001-12-21 23:34:47 +00:00
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int padchar_len = 1;
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2002-01-17 23:47:03 +00:00
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struct sc_asn1_entry asn1_com_ao_attr[2], asn1_pin_attr[10], asn1_type_pin_attr[2];
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struct sc_asn1_entry asn1_pin[2];
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2002-01-24 16:02:54 +00:00
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struct sc_asn1_pkcs15_object pin_obj = { &info.com_attr, asn1_com_ao_attr, NULL,
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2001-12-21 23:34:47 +00:00
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asn1_type_pin_attr };
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2002-01-17 23:47:03 +00:00
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sc_copy_asn1_entry(c_asn1_pin, asn1_pin);
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sc_copy_asn1_entry(c_asn1_type_pin_attr, asn1_type_pin_attr);
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sc_copy_asn1_entry(c_asn1_pin_attr, asn1_pin_attr);
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sc_copy_asn1_entry(c_asn1_com_ao_attr, asn1_com_ao_attr);
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2001-12-21 23:34:47 +00:00
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2002-01-17 23:47:03 +00:00
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sc_format_asn1_entry(asn1_pin + 0, &pin_obj, NULL, 0);
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sc_format_asn1_entry(asn1_type_pin_attr + 0, asn1_pin_attr, NULL, 0);
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2002-01-24 16:02:54 +00:00
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sc_format_asn1_entry(asn1_pin_attr + 0, &info.flags, &flags_len, 0);
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sc_format_asn1_entry(asn1_pin_attr + 1, &info.type, NULL, 0);
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sc_format_asn1_entry(asn1_pin_attr + 2, &info.min_length, NULL, 0);
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sc_format_asn1_entry(asn1_pin_attr + 3, &info.stored_length, NULL, 0);
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sc_format_asn1_entry(asn1_pin_attr + 5, &info.reference, NULL, 0);
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sc_format_asn1_entry(asn1_pin_attr + 6, &info.pad_char, &padchar_len, 0);
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sc_format_asn1_entry(asn1_pin_attr + 8, &info.path, NULL, 0);
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2002-01-17 23:47:03 +00:00
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2002-01-24 16:02:54 +00:00
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sc_format_asn1_entry(asn1_com_ao_attr + 0, &info.auth_id, NULL, 0);
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2002-01-17 23:47:03 +00:00
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/* Fill in defaults */
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2002-01-24 16:02:54 +00:00
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memset(&info, 0, sizeof(info));
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info.reference = 0;
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2001-11-01 15:43:20 +00:00
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2002-01-07 18:23:34 +00:00
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r = sc_asn1_decode(ctx, asn1_pin, *buf, *buflen, buf, buflen);
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2002-01-24 16:02:54 +00:00
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if (r == SC_ERROR_ASN1_END_OF_CONTENTS)
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return r;
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SC_TEST_RET(ctx, r, "ASN.1 decoding failed");
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info.magic = SC_PKCS15_PIN_MAGIC;
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obj->type = SC_PKCS15_TYPE_AUTH_PIN;
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obj->data = malloc(sizeof(info));
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if (obj->data == NULL)
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SC_FUNC_RETURN(ctx, 0, SC_ERROR_OUT_OF_MEMORY);
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memcpy(obj->data, &info, sizeof(info));
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/* Legacy code */
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if (p15card->pin_count >= SC_PKCS15_MAX_PINS)
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return SC_ERROR_TOO_MANY_OBJECTS;
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p15card->pin_info[p15card->pin_count] = info;
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p15card->pin_count++;
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2001-11-01 15:43:20 +00:00
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2002-01-24 16:02:54 +00:00
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return 0;
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2001-11-01 15:43:20 +00:00
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}
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2002-01-17 23:47:03 +00:00
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int sc_pkcs15_encode_aodf_entry(struct sc_context *ctx,
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const struct sc_pkcs15_object *obj,
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u8 **buf, size_t *buflen)
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{
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struct sc_asn1_entry asn1_com_ao_attr[2], asn1_pin_attr[10], asn1_type_pin_attr[2];
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struct sc_asn1_entry asn1_pin[2];
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struct sc_pkcs15_pin_info *pin =
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(struct sc_pkcs15_pin_info *) obj->data;
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struct sc_asn1_pkcs15_object pin_obj = { &pin->com_attr, asn1_com_ao_attr, NULL,
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asn1_type_pin_attr };
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int r;
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int flags_len = sizeof(pin->flags);
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int padchar_len = 1;
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sc_copy_asn1_entry(c_asn1_pin, asn1_pin);
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sc_copy_asn1_entry(c_asn1_type_pin_attr, asn1_type_pin_attr);
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sc_copy_asn1_entry(c_asn1_pin_attr, asn1_pin_attr);
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sc_copy_asn1_entry(c_asn1_com_ao_attr, asn1_com_ao_attr);
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sc_format_asn1_entry(asn1_pin + 0, &pin_obj, NULL, 1);
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sc_format_asn1_entry(asn1_type_pin_attr + 0, asn1_pin_attr, NULL, 1);
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sc_format_asn1_entry(asn1_pin_attr + 0, &pin->flags, &flags_len, 1);
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sc_format_asn1_entry(asn1_pin_attr + 1, &pin->type, NULL, 1);
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sc_format_asn1_entry(asn1_pin_attr + 2, &pin->min_length, NULL, 1);
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sc_format_asn1_entry(asn1_pin_attr + 3, &pin->stored_length, NULL, 1);
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if (pin->reference >= 0)
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sc_format_asn1_entry(asn1_pin_attr + 5, &pin->reference, NULL, 1);
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/* FIXME: check if pad_char present */
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sc_format_asn1_entry(asn1_pin_attr + 6, &pin->pad_char, &padchar_len, 1);
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sc_format_asn1_entry(asn1_pin_attr + 8, &pin->path, NULL, 1);
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sc_format_asn1_entry(asn1_com_ao_attr + 0, &pin->auth_id, NULL, 1);
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assert(pin->magic == SC_PKCS15_PIN_MAGIC);
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r = sc_asn1_encode(ctx, asn1_pin, buf, buflen);
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return r;
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}
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2001-11-01 15:43:20 +00:00
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void sc_pkcs15_print_pin_info(const struct sc_pkcs15_pin_info *pin)
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{
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char path[SC_MAX_PATH_SIZE * 2 + 1];
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int i;
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char *p;
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p = path;
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*p = 0;
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for (i = 0; i < pin->path.len; i++) {
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sprintf(p, "%02X", pin->path.value[i]);
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p += 2;
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}
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2001-11-18 01:52:32 +00:00
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printf("PIN [%s]\n", pin->com_attr.label);
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2002-01-24 16:02:54 +00:00
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printf("\tCom. Flags: 0x%X\n", pin->com_attr.flags);
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2001-11-18 01:52:32 +00:00
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printf("\tAuth ID : ");
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sc_pkcs15_print_id(&pin->auth_id);
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printf("\n");
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2002-01-24 16:02:54 +00:00
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printf("\tFlags : 0x%X\n", pin->flags);
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2002-01-17 23:47:03 +00:00
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printf("\tLength : %d..%d\n", pin->min_length, pin->stored_length);
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printf("\tPad char : 0x%02X\n", pin->pad_char);
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printf("\tReference : %d\n", pin->reference);
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printf("\tType : %d\n", pin->type);
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printf("\tPath : %s\n", path);
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2001-11-01 15:43:20 +00:00
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}
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int sc_pkcs15_enum_pins(struct sc_pkcs15_card *p15card)
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{
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2002-01-13 23:56:13 +00:00
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int r, i, j;
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const int df_types[] = {
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SC_PKCS15_AODF
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};
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const int nr_types = sizeof(df_types)/sizeof(df_types[0]);
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2001-11-01 15:43:20 +00:00
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assert(p15card != NULL);
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2002-01-24 16:02:54 +00:00
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SC_FUNC_CALLED(p15card->card->ctx, 1);
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2001-11-17 14:55:41 +00:00
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if (p15card->pin_count) {
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for (i = 0; i < p15card->pin_count; i++) {
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if (p15card->pin_info[i].magic != SC_PKCS15_PIN_MAGIC)
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break;
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}
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if (i == p15card->pin_count)
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return i; /* Already enumerated */
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}
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2001-12-21 23:34:47 +00:00
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p15card->pin_count = 0;
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2001-12-25 20:45:48 +00:00
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r = sc_lock(p15card->card);
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SC_TEST_RET(p15card->card->ctx, r, "sc_lock() failed");
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2002-01-13 23:56:13 +00:00
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for (j = 0; r == 0 && j < nr_types; j++) {
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int type = df_types[j];
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2002-01-17 23:47:03 +00:00
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for (i = 0; r == 0 && i < p15card->df[type].count; i++) {
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2002-01-24 16:02:54 +00:00
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r = sc_pkcs15_parse_df(p15card, &p15card->df[type], i);
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2002-01-17 23:47:03 +00:00
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if (r != 0)
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break;
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}
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if (r != 0)
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break;
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2001-11-01 15:43:20 +00:00
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}
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2001-12-25 20:45:48 +00:00
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sc_unlock(p15card->card);
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if (r != 0)
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return r;
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2001-11-01 15:43:20 +00:00
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return p15card->pin_count;
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}
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int sc_pkcs15_verify_pin(struct sc_pkcs15_card *p15card,
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struct sc_pkcs15_pin_info *pin,
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2001-11-22 15:40:51 +00:00
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const u8 *pincode, int pinlen)
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2001-11-01 15:43:20 +00:00
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{
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int r;
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struct sc_file file;
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struct sc_card *card;
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2001-12-30 21:17:34 +00:00
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u8 pinbuf[SC_MAX_PIN_SIZE];
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2001-11-01 15:43:20 +00:00
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assert(p15card != NULL);
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if (pin->magic != SC_PKCS15_PIN_MAGIC)
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return SC_ERROR_OBJECT_NOT_VALID;
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if (pinlen > pin->stored_length || pinlen < pin->min_length)
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2001-11-17 15:48:10 +00:00
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return SC_ERROR_INVALID_PIN_LENGTH;
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2001-11-01 15:43:20 +00:00
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card = p15card->card;
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2001-12-25 20:45:48 +00:00
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r = sc_lock(card);
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SC_TEST_RET(card->ctx, r, "sc_lock() failed");
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2001-12-22 23:51:12 +00:00
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r = sc_select_file(card, &pin->path, &file);
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2001-12-25 20:45:48 +00:00
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if (r) {
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sc_unlock(card);
|
2001-11-01 15:43:20 +00:00
|
|
|
|
return r;
|
2001-12-25 20:45:48 +00:00
|
|
|
|
}
|
2001-11-01 15:43:20 +00:00
|
|
|
|
memset(pinbuf, pin->pad_char, pin->stored_length);
|
|
|
|
|
memcpy(pinbuf, pincode, pinlen);
|
2002-01-17 23:47:03 +00:00
|
|
|
|
r = sc_verify(card, SC_AC_CHV1, pin->reference,
|
2001-11-20 22:21:58 +00:00
|
|
|
|
pinbuf, pin->stored_length, &pin->tries_left);
|
2001-11-01 15:43:20 +00:00
|
|
|
|
memset(pinbuf, 0, pinlen);
|
2001-12-25 20:45:48 +00:00
|
|
|
|
sc_unlock(card);
|
2001-11-01 15:43:20 +00:00
|
|
|
|
if (r)
|
|
|
|
|
return r;
|
2001-11-20 22:21:58 +00:00
|
|
|
|
|
|
|
|
|
return 0;
|
2001-11-01 15:43:20 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int sc_pkcs15_change_pin(struct sc_pkcs15_card *p15card,
|
|
|
|
|
struct sc_pkcs15_pin_info *pin,
|
2001-12-29 02:07:32 +00:00
|
|
|
|
const u8 *oldpin, int oldpinlen,
|
|
|
|
|
const u8 *newpin, int newpinlen)
|
2001-11-01 15:43:20 +00:00
|
|
|
|
{
|
|
|
|
|
int r;
|
|
|
|
|
struct sc_file file;
|
|
|
|
|
struct sc_card *card;
|
2001-12-02 19:21:46 +00:00
|
|
|
|
u8 pinbuf[SC_MAX_PIN_SIZE * 2];
|
2001-11-01 15:43:20 +00:00
|
|
|
|
|
|
|
|
|
assert(p15card != NULL);
|
|
|
|
|
if (pin->magic != SC_PKCS15_PIN_MAGIC)
|
|
|
|
|
return SC_ERROR_OBJECT_NOT_VALID;
|
|
|
|
|
if ((oldpinlen > pin->stored_length)
|
|
|
|
|
|| (newpinlen > pin->stored_length))
|
|
|
|
|
return SC_ERROR_INVALID_ARGUMENTS;
|
|
|
|
|
if ((oldpinlen < pin->min_length) || (newpinlen < pin->min_length))
|
|
|
|
|
return SC_ERROR_INVALID_ARGUMENTS;
|
|
|
|
|
card = p15card->card;
|
2001-12-25 20:45:48 +00:00
|
|
|
|
r = sc_lock(card);
|
|
|
|
|
SC_TEST_RET(card->ctx, r, "sc_lock() failed");
|
2001-12-22 23:51:12 +00:00
|
|
|
|
r = sc_select_file(card, &pin->path, &file);
|
2001-12-25 20:45:48 +00:00
|
|
|
|
if (r) {
|
|
|
|
|
sc_unlock(card);
|
2001-11-01 15:43:20 +00:00
|
|
|
|
return r;
|
2001-12-25 20:45:48 +00:00
|
|
|
|
}
|
2001-11-01 15:43:20 +00:00
|
|
|
|
memset(pinbuf, pin->pad_char, pin->stored_length * 2);
|
|
|
|
|
memcpy(pinbuf, oldpin, oldpinlen);
|
|
|
|
|
memcpy(pinbuf + pin->stored_length, newpin, newpinlen);
|
2001-12-02 19:21:46 +00:00
|
|
|
|
r = sc_change_reference_data(card, pin->auth_id.value[0], pinbuf,
|
|
|
|
|
pin->stored_length, pinbuf+pin->stored_length,
|
|
|
|
|
pin->stored_length, &pin->tries_left);
|
2001-11-01 15:43:20 +00:00
|
|
|
|
memset(pinbuf, 0, pin->stored_length * 2);
|
2001-12-25 20:45:48 +00:00
|
|
|
|
sc_unlock(card);
|
2001-12-02 19:21:46 +00:00
|
|
|
|
return r;
|
2001-11-01 15:43:20 +00:00
|
|
|
|
}
|
2001-11-20 22:21:58 +00:00
|
|
|
|
|
|
|
|
|
int sc_pkcs15_find_pin_by_auth_id(struct sc_pkcs15_card *card,
|
|
|
|
|
const struct sc_pkcs15_id *id,
|
|
|
|
|
struct sc_pkcs15_pin_info **pin_out)
|
|
|
|
|
{
|
|
|
|
|
int r, i;
|
|
|
|
|
|
|
|
|
|
r = sc_pkcs15_enum_pins(card);
|
|
|
|
|
if (r < 0)
|
|
|
|
|
return r;
|
|
|
|
|
for (i = 0; i < card->pin_count; i++) {
|
|
|
|
|
struct sc_pkcs15_pin_info *pin = &card->pin_info[i];
|
|
|
|
|
if (sc_pkcs15_compare_id(&pin->auth_id, id) == 1) {
|
|
|
|
|
*pin_out = pin;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return SC_ERROR_OBJECT_NOT_FOUND;
|
|
|
|
|
}
|