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/* card-util.c - Utility functions for the OpenPGP card.
* Copyright (C) 2003 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "gpg.h"
#include "util.h"
#include "i18n.h"
#include "ttyio.h"
#include "status.h"
#include "options.h"
#include "main.h"
#include "call-agent.h"
/* Change the PIN of a an OpenPGP card. This is an interactive
function. */
void
change_pin (int chvno)
{
struct agent_card_info_s info;
int rc;
int reset_mode = 0;
rc = agent_learn (&info);
if (rc)
{
log_error (_("OpenPGP card not available: %s\n"),
gpg_strerror (rc));
return;
}
log_info (_("OpenPGP card no. %s detected\n"),
info.serialno? info.serialno : "[none]");
agent_release_card_info (&info);
if (opt.batch)
{
log_error (_("sorry, can't do this in batch mode\n"));
return;
}
for (;;)
{
char *answer;
tty_printf ("\n");
tty_printf ("1 - change signature PIN\n"
"2 - change decryption and authentication PIN\n"
"3 - change Admin's PIN\n"
"R - toggle reset retry counter mode\n"
"Q - quit\n");
tty_printf ("\n");
if (reset_mode)
{
tty_printf ("Reset Retry Counter mode active\n");
tty_printf ("\n");
}
answer = cpr_get("cardutil.change_pin.menu",_("Your selection? "));
cpr_kill_prompt();
if (strlen (answer) != 1)
continue;
rc = 0;
if (reset_mode && *answer == '3')
{
tty_printf ("Sorry, reset of the Admin PIN's retry counter "
"is not possible.\n");
}
else if (*answer == '1' || *answer == '2' || *answer == '3')
{
rc = agent_scd_change_pin (*answer - '0' + (reset_mode?100:0));
if (rc)
tty_printf ("Error changing/resetting the PIN: %s\n",
gpg_strerror (rc));
else
tty_printf ("New PIN successfully set.\n");
}
else if (*answer == 'r' || *answer == 'R')
{
reset_mode = !reset_mode;
}
else if (*answer == 'q' || *answer == 'Q')
{
break;
}
}
}
static const char *
get_manufacturer (unsigned int no)
{
switch (no)
{
case 0:
case 0xffff: return "test card";
case 0x0001: return "PPC Card Systems";
default: return "unknown";
}
}
static void
print_sha1_fpr (FILE *fp, const unsigned char *fpr)
{
int i;
if (fpr)
{
for (i=0; i < 20 ; i+=2, fpr += 2 )
{
if (i == 10 )
putc (' ', fp);
fprintf (fp, " %02X%02X", *fpr, fpr[1]);
}
}
else
fputs (" [none]", fp);
putc ('\n', fp);
}
static void
print_name (FILE *fp, const char *text, const char *name)
{
fputs (text, fp);
if (name && *name)
print_utf8_string2 (fp, name, strlen (name), '\n');
else
fputs (_("[not set]"), fp);
putc ('\n', fp);
}
static void
print_isoname (FILE *fp, const char *text, const char *name)
{
fputs (text, fp);
if (name && *name)
{
char *p, *given, *buf = xstrdup (name);
given = strstr (buf, "<<");
for (p=buf; *p; p++)
if (*p == '<')
*p = ' ';
if (given && given[2])
{
*given = 0;
given += 2;
print_utf8_string2 (fp, given, strlen (given), '\n');
if (*buf)
putc (' ', fp);
}
print_utf8_string2 (fp, buf, strlen (buf), '\n');
xfree (buf);
}
else
fputs (_("[not set]"), fp);
putc ('\n', fp);
}
/* Print all available information about the current card. */
void
card_status (FILE *fp)
{
struct agent_card_info_s info;
PKT_public_key *pk = xcalloc (1, sizeof *pk);
int rc;
rc = agent_learn (&info);
if (rc)
{
log_error (_("OpenPGP card not available: %s\n"),
gpg_strerror (rc));
return;
}
fprintf (fp, "Application ID ...: %s\n",
info.serialno? info.serialno : "[none]");
if (!info.serialno || strncmp (info.serialno, "D27600012401", 12)
|| strlen (info.serialno) != 32 )
{
log_info ("not an OpenPGP card\n");
agent_release_card_info (&info);
}
fprintf (fp, "Version ..........: %.1s%c.%.1s%c\n",
info.serialno[12] == '0'?"":info.serialno+12,
info.serialno[13],
info.serialno[14] == '0'?"":info.serialno+14,
info.serialno[15]);
fprintf (fp, "Manufacturer .....: %s\n",
get_manufacturer (xtoi_2(info.serialno+16)*256
+ xtoi_2 (info.serialno+18)));
fprintf (fp, "Serial number ....: %.8s\n", info.serialno+20);
print_isoname (fp, "Name of cardholder: ", info.disp_name);
print_name (fp, "Language prefs ...: ", info.disp_lang);
fprintf (fp, "Sex ..............: %s\n", info.disp_sex == 1? _("male"):
info.disp_sex == 2? _("female") : _("unspecified"));
print_name (fp, "URL of public key : ", info.pubkey_url);
print_name (fp, "Login data .......: ", info.login_data);
fprintf (fp, "Signature PIN ....: %s\n",
info.chv1_cached? _("cached"): _("not cached"));
fprintf (fp, "Max. PIN lengths .: %d %d %d\n",
info.chvmaxlen[0], info.chvmaxlen[1], info.chvmaxlen[2]);
fprintf (fp, "PIN retry counter : %d %d %d\n",
info.chvretry[0], info.chvretry[1], info.chvretry[2]);
fputs ("Signature key ....:", fp);
print_sha1_fpr (fp, info.fpr1valid? info.fpr1:NULL);
fputs ("Encryption key....:", fp);
print_sha1_fpr (fp, info.fpr2valid? info.fpr2:NULL);
fputs ("Authentication key:", fp);
print_sha1_fpr (fp, info.fpr3valid? info.fpr3:NULL);
fputs ("General key info..: ", fp);
if (info.fpr1valid && !get_pubkey_byfprint (pk, info.fpr1, 20))
print_pubkey_info (fp, pk);
else
fputs ("[none]\n", fp);
fprintf (fp, "Signature counter : %lu\n", info.sig_counter);
free_public_key (pk);
agent_release_card_info (&info);
}
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