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* g10.c (main): New commands --card-edit, --card-status and
--change-pin. New options --ctapi-driver, --pcsc-driver and --disable-ccid * options.h (DBG_CARD_IO): New. * cardglue.c, cardclue.h: Enhanced. * card-util.c: New. Taken from current the gnupg 1.9 branch. * app-common.h, app-openpgp.c, iso7816.c, iso7816.h, apdu.c * apdu.h, ccid-driver.c, ccid-driver.h: New. Takem from the current gnupg 1.9 branch withy minor changes to include directives. * Makefile.am: Added these files.
This commit is contained in:
Werner Koch
parent
20ed53942a
commit
e369270a65
15 changed files with 5576 additions and 2 deletions
385
g10/iso7816.c
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385
g10/iso7816.c
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/* iso7816.c - ISO 7816 commands
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* Copyright (C) 2003 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; 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 <config.h>
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#ifdef ENABLE_CARD_SUPPORT
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/*
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Note, that most of this code has been taken from 1.9.x branch
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and is maintained over there if at all possible. Thus, if you make
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changes here, please check that a similar change has been commited
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to the 1.9.x branch.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "options.h"
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#include "errors.h"
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#include "memory.h"
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#include "util.h"
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#include "i18n.h"
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#include "iso7816.h"
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#include "apdu.h"
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#define CMD_SELECT_FILE 0xA4
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#define CMD_VERIFY 0x20
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#define CMD_CHANGE_REFERENCE_DATA 0x24
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#define CMD_RESET_RETRY_COUNTER 0x2C
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#define CMD_GET_DATA 0xCA
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#define CMD_PUT_DATA 0xDA
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#define CMD_PSO 0x2A
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#define CMD_INTERNAL_AUTHENTICATE 0x88
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#define CMD_GENERATE_KEYPAIR 0x47
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#define CMD_GET_CHALLENGE 0x84
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static gpg_error_t
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map_sw (int sw)
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{
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gpg_err_code_t ec;
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switch (sw)
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{
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case SW_EEPROM_FAILURE: ec = GPG_ERR_HARDWARE; break;
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case SW_WRONG_LENGTH: ec = GPG_ERR_INV_VALUE; break;
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case SW_CHV_WRONG: ec = GPG_ERR_BAD_PIN; break;
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case SW_CHV_BLOCKED: ec = GPG_ERR_PIN_BLOCKED; break;
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case SW_USE_CONDITIONS: ec = GPG_ERR_USE_CONDITIONS; break;
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case SW_NOT_SUPPORTED: ec = GPG_ERR_NOT_SUPPORTED; break;
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case SW_BAD_PARAMETER: ec = GPG_ERR_INV_VALUE; break;
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case SW_REF_NOT_FOUND: ec = GPG_ERR_NO_OBJ; break;
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case SW_BAD_P0_P1: ec = GPG_ERR_INV_VALUE; break;
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case SW_INS_NOT_SUP: ec = GPG_ERR_CARD; break;
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case SW_CLA_NOT_SUP: ec = GPG_ERR_CARD; break;
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case SW_SUCCESS: ec = 0; break;
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case SW_HOST_OUT_OF_CORE: ec = GPG_ERR_ENOMEM; break;
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case SW_HOST_INV_VALUE: ec = GPG_ERR_INV_VALUE; break;
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case SW_HOST_INCOMPLETE_CARD_RESPONSE: ec = GPG_ERR_CARD; break;
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default:
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if ((sw & 0x010000))
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ec = GPG_ERR_GENERAL; /* Should not happen. */
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else if ((sw & 0xff00) == SW_MORE_DATA)
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ec = 0; /* This should actually never been seen here. */
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else
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ec = GPG_ERR_CARD;
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}
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return gpg_error (ec);
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}
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/* This function is specialized version of the SELECT FILE command.
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SLOT is the card and reader as created for example by
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apdu_open_reader (), AID is a buffer of size AIDLEN holding the
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requested application ID. The function can't be used to enumerate
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AIDs and won't return the AID on success. The return value is 0
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for okay or GNUPG error code. Note that ISO error codes are
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internally mapped. */
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gpg_error_t
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iso7816_select_application (int slot, const char *aid, size_t aidlen)
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{
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int sw;
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sw = apdu_send_simple (slot, 0x00, CMD_SELECT_FILE, 4, 0, aidlen, aid);
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return map_sw (sw);
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}
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/* Perform a VERIFY command on SLOT using the card holder verification
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vector CHVNO with a CHV of lenght CHVLEN. Returns 0 on success. */
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gpg_error_t
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iso7816_verify (int slot, int chvno, const char *chv, size_t chvlen)
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{
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int sw;
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sw = apdu_send_simple (slot, 0x00, CMD_VERIFY, 0, chvno, chvlen, chv);
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return map_sw (sw);
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}
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/* Perform a CHANGE_REFERENCE_DATA command on SLOT for the card holder
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verification vector CHVNO. If the OLDCHV is NULL (and OLDCHVLEN
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0), a "change reference data" is done, otherwise an "exchange
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reference data". The new reference data is expected in NEWCHV of
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length NEWCHVLEN. */
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gpg_error_t
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iso7816_change_reference_data (int slot, int chvno,
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const char *oldchv, size_t oldchvlen,
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const char *newchv, size_t newchvlen)
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{
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int sw;
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char *buf;
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if ((!oldchv && oldchvlen)
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|| (oldchv && !oldchvlen)
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|| !newchv || !newchvlen )
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return gpg_error (GPG_ERR_INV_VALUE);
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buf = xtrymalloc (oldchvlen + newchvlen);
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if (!buf)
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return out_of_core ();
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if (oldchvlen)
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memcpy (buf, oldchv, oldchvlen);
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memcpy (buf+oldchvlen, newchv, newchvlen);
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sw = apdu_send_simple (slot, 0x00, CMD_CHANGE_REFERENCE_DATA,
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oldchvlen? 0 : 1, chvno, oldchvlen+newchvlen, buf);
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xfree (buf);
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return map_sw (sw);
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}
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gpg_error_t
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iso7816_reset_retry_counter (int slot, int chvno,
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const char *newchv, size_t newchvlen)
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{
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int sw;
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if (!newchv || !newchvlen )
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return gpg_error (GPG_ERR_INV_VALUE);
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sw = apdu_send_simple (slot, 0x00, CMD_RESET_RETRY_COUNTER,
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2, chvno, newchvlen, newchv);
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return map_sw (sw);
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}
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/* Perform a GET DATA command requesting TAG and storing the result in
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a newly allocated buffer at the address passed by RESULT. Return
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the length of this data at the address of RESULTLEN. */
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gpg_error_t
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iso7816_get_data (int slot, int tag,
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unsigned char **result, size_t *resultlen)
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{
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int sw;
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if (!result || !resultlen)
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return gpg_error (GPG_ERR_INV_VALUE);
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*result = NULL;
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*resultlen = 0;
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sw = apdu_send (slot, 0x00, CMD_GET_DATA,
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((tag >> 8) & 0xff), (tag & 0xff), -1, NULL,
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result, resultlen);
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if (sw != SW_SUCCESS)
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{
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/* Make sure that pending buffers are released. */
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xfree (*result);
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*result = NULL;
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*resultlen = 0;
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return map_sw (sw);
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}
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return 0;
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}
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/* Perform a PUT DATA command on card in SLOT. Write DATA of length
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DATALEN to TAG. */
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gpg_error_t
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iso7816_put_data (int slot, int tag,
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const unsigned char *data, size_t datalen)
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{
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int sw;
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sw = apdu_send_simple (slot, 0x00, CMD_PUT_DATA,
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((tag >> 8) & 0xff), (tag & 0xff),
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datalen, data);
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return map_sw (sw);
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}
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/* Perform the security operation COMPUTE DIGITAL SIGANTURE. On
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success 0 is returned and the data is availavle in a newly
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allocated buffer stored at RESULT with its length stored at
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RESULTLEN. */
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gpg_error_t
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iso7816_compute_ds (int slot, const unsigned char *data, size_t datalen,
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unsigned char **result, size_t *resultlen)
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{
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int sw;
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if (!data || !datalen || !result || !resultlen)
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return gpg_error (GPG_ERR_INV_VALUE);
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*result = NULL;
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*resultlen = 0;
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sw = apdu_send (slot, 0x00, CMD_PSO, 0x9E, 0x9A, datalen, data,
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result, resultlen);
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if (sw != SW_SUCCESS)
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{
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/* Make sure that pending buffers are released. */
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xfree (*result);
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*result = NULL;
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*resultlen = 0;
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return map_sw (sw);
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}
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return 0;
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}
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/* Perform the security operation DECIPHER. On
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success 0 is returned and the plaintext is available in a newly
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allocated buffer stored at RESULT with its length stored at
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RESULTLEN. */
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gpg_error_t
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iso7816_decipher (int slot, const unsigned char *data, size_t datalen,
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unsigned char **result, size_t *resultlen)
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{
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int sw;
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unsigned char *buf;
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if (!data || !datalen || !result || !resultlen)
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return gpg_error (GPG_ERR_INV_VALUE);
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*result = NULL;
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*resultlen = 0;
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/* We need to prepend the padding indicator. */
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buf = xtrymalloc (datalen + 1);
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if (!buf)
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return out_of_core ();
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*buf = 0; /* Padding indicator. */
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memcpy (buf+1, data, datalen);
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sw = apdu_send (slot, 0x00, CMD_PSO, 0x80, 0x86, datalen+1, buf,
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result, resultlen);
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xfree (buf);
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if (sw != SW_SUCCESS)
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{
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/* Make sure that pending buffers are released. */
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xfree (*result);
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*result = NULL;
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*resultlen = 0;
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return map_sw (sw);
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}
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return 0;
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}
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gpg_error_t
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iso7816_internal_authenticate (int slot,
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const unsigned char *data, size_t datalen,
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unsigned char **result, size_t *resultlen)
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{
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int sw;
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if (!data || !datalen || !result || !resultlen)
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return gpg_error (GPG_ERR_INV_VALUE);
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*result = NULL;
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*resultlen = 0;
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sw = apdu_send (slot, 0x00, CMD_INTERNAL_AUTHENTICATE, 0, 0,
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datalen, data, result, resultlen);
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if (sw != SW_SUCCESS)
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{
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/* Make sure that pending buffers are released. */
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xfree (*result);
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*result = NULL;
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*resultlen = 0;
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return map_sw (sw);
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}
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return 0;
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}
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static gpg_error_t
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do_generate_keypair (int slot, int readonly,
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const unsigned char *data, size_t datalen,
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unsigned char **result, size_t *resultlen)
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{
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int sw;
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if (!data || !datalen || !result || !resultlen)
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return gpg_error (GPG_ERR_INV_VALUE);
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*result = NULL;
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*resultlen = 0;
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sw = apdu_send (slot, 0x00, CMD_GENERATE_KEYPAIR, readonly? 0x81:0x80, 0,
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datalen, data, result, resultlen);
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if (sw != SW_SUCCESS)
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{
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/* Make sure that pending buffers are released. */
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xfree (*result);
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*result = NULL;
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*resultlen = 0;
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return map_sw (sw);
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}
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return 0;
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}
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gpg_error_t
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iso7816_generate_keypair (int slot,
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const unsigned char *data, size_t datalen,
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unsigned char **result, size_t *resultlen)
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{
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return do_generate_keypair (slot, 0, data, datalen, result, resultlen);
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}
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gpg_error_t
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iso7816_read_public_key (int slot,
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const unsigned char *data, size_t datalen,
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unsigned char **result, size_t *resultlen)
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{
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return do_generate_keypair (slot, 1, data, datalen, result, resultlen);
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}
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gpg_error_t
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iso7816_get_challenge (int slot, int length, unsigned char *buffer)
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{
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int sw;
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unsigned char *result;
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size_t resultlen, n;
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if (!buffer || length < 1)
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return gpg_error (GPG_ERR_INV_VALUE);
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do
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{
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result = NULL;
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n = length > 254? 254 : length;
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sw = apdu_send_le (slot, 0x00, CMD_GET_CHALLENGE, 0, 0, -1, NULL,
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n,
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&result, &resultlen);
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if (sw != SW_SUCCESS)
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{
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/* Make sure that pending buffers are released. */
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xfree (result);
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return map_sw (sw);
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}
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if (resultlen > n)
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resultlen = n;
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memcpy (buffer, result, resultlen);
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buffer += resultlen;
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length -= resultlen;
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xfree (result);
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}
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while (length > 0);
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return 0;
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}
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#endif /*ENABLE_CARD_SUPPORT*/
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