mirror of
git://git.gnupg.org/gnupg.git
synced 2024-12-22 10:19:57 +01:00
096e7457ec
The asymmetric quotes used by GNU in the past (`...') don't render nicely on modern systems. We now use two \x27 characters ('...'). The proper solution would be to use the correct Unicode symmetric quotes here. However this has the disadvantage that the system requires Unicode support. We don't want that today. If Unicode is available a generated po file can be used to output proper quotes. A simple sed script like the one used for en@quote is sufficient to change them. The changes have been done by applying sed -i "s/\`\([^'\`]*\)'/'\1'/g" to most files and fixing obvious problems by hand. The msgid strings in the po files were fixed with a similar command.
984 lines
28 KiB
C
984 lines
28 KiB
C
/* app.c - Application selection.
|
||
* Copyright (C) 2003, 2004, 2005 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 3 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, see <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
#include <config.h>
|
||
#include <errno.h>
|
||
#include <stdio.h>
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
#include <npth.h>
|
||
|
||
#include "scdaemon.h"
|
||
#include "app-common.h"
|
||
#include "apdu.h"
|
||
#include "iso7816.h"
|
||
#include "tlv.h"
|
||
|
||
/* This table is used to keep track of locks on a per reader base.
|
||
The index into the table is the slot number of the reader. The
|
||
mutex will be initialized on demand (one of the advantages of a
|
||
userland threading system). */
|
||
static struct
|
||
{
|
||
int initialized;
|
||
npth_mutex_t lock;
|
||
app_t app; /* Application context in use or NULL. */
|
||
app_t last_app; /* Last application object used as this slot or NULL. */
|
||
} lock_table[10];
|
||
|
||
|
||
|
||
static void deallocate_app (app_t app);
|
||
|
||
|
||
|
||
static void
|
||
print_progress_line (void *opaque, const char *what, int pc, int cur, int tot)
|
||
{
|
||
ctrl_t ctrl = opaque;
|
||
char line[100];
|
||
|
||
if (ctrl)
|
||
{
|
||
snprintf (line, sizeof line, "%s %c %d %d", what, pc, cur, tot);
|
||
send_status_direct (ctrl, "PROGRESS", line);
|
||
}
|
||
}
|
||
|
||
|
||
/* Lock the reader SLOT. This function shall be used right before
|
||
calling any of the actual application functions to serialize access
|
||
to the reader. We do this always even if the reader is not
|
||
actually used. This allows an actual connection to assume that it
|
||
never shares a reader (while performing one command). Returns 0 on
|
||
success; only then the unlock_reader function must be called after
|
||
returning from the handler. */
|
||
static gpg_error_t
|
||
lock_reader (int slot, ctrl_t ctrl)
|
||
{
|
||
int res;
|
||
|
||
if (slot < 0 || slot >= DIM (lock_table))
|
||
return gpg_error (slot<0? GPG_ERR_INV_VALUE : GPG_ERR_RESOURCE_LIMIT);
|
||
|
||
if (!lock_table[slot].initialized)
|
||
{
|
||
res = npth_mutex_init (&lock_table[slot].lock, NULL);
|
||
if (res)
|
||
{
|
||
log_error ("error initializing mutex: %s\n", strerror (res));
|
||
return gpg_error_from_errno (res);
|
||
}
|
||
lock_table[slot].initialized = 1;
|
||
lock_table[slot].app = NULL;
|
||
lock_table[slot].last_app = NULL;
|
||
}
|
||
|
||
res = npth_mutex_lock (&lock_table[slot].lock);
|
||
if (res)
|
||
{
|
||
log_error ("failed to acquire APP lock for slot %d: %s\n",
|
||
slot, strerror (res));
|
||
return gpg_error_from_errno (res);
|
||
}
|
||
|
||
apdu_set_progress_cb (slot, print_progress_line, ctrl);
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Release a lock on the reader. See lock_reader(). */
|
||
static void
|
||
unlock_reader (int slot)
|
||
{
|
||
int res;
|
||
|
||
if (slot < 0 || slot >= DIM (lock_table)
|
||
|| !lock_table[slot].initialized)
|
||
log_bug ("unlock_reader called for invalid slot %d\n", slot);
|
||
|
||
apdu_set_progress_cb (slot, NULL, NULL);
|
||
|
||
res = npth_mutex_unlock (&lock_table[slot].lock);
|
||
if (res)
|
||
log_error ("failed to release APP lock for slot %d: %s\n",
|
||
slot, strerror (res));
|
||
}
|
||
|
||
|
||
/* This function may be called to print information pertaining to the
|
||
current state of this module to the log. */
|
||
void
|
||
app_dump_state (void)
|
||
{
|
||
int slot;
|
||
|
||
for (slot=0; slot < DIM (lock_table); slot++)
|
||
if (lock_table[slot].initialized)
|
||
{
|
||
log_info ("app_dump_state: slot=%d", slot);
|
||
if (lock_table[slot].app)
|
||
{
|
||
log_printf (" app=%p", lock_table[slot].app);
|
||
if (lock_table[slot].app->apptype)
|
||
log_printf (" type='%s'", lock_table[slot].app->apptype);
|
||
}
|
||
if (lock_table[slot].last_app)
|
||
{
|
||
log_printf (" lastapp=%p", lock_table[slot].last_app);
|
||
if (lock_table[slot].last_app->apptype)
|
||
log_printf (" type='%s'", lock_table[slot].last_app->apptype);
|
||
}
|
||
log_printf ("\n");
|
||
}
|
||
}
|
||
|
||
/* Check wether the application NAME is allowed. This does not mean
|
||
we have support for it though. */
|
||
static int
|
||
is_app_allowed (const char *name)
|
||
{
|
||
strlist_t l;
|
||
|
||
for (l=opt.disabled_applications; l; l = l->next)
|
||
if (!strcmp (l->d, name))
|
||
return 0; /* no */
|
||
return 1; /* yes */
|
||
}
|
||
|
||
|
||
/* This may be called to tell this module about a removed or resetted card. */
|
||
void
|
||
application_notify_card_reset (int slot)
|
||
{
|
||
app_t app;
|
||
|
||
if (slot < 0 || slot >= DIM (lock_table))
|
||
return;
|
||
|
||
/* FIXME: We are ignoring any error value here. */
|
||
lock_reader (slot, NULL);
|
||
|
||
/* Mark application as non-reusable. */
|
||
if (lock_table[slot].app)
|
||
lock_table[slot].app->no_reuse = 1;
|
||
|
||
/* Deallocate a saved application for that slot, so that we won't
|
||
try to reuse it. If there is no saved application, set a flag so
|
||
that we won't save the current state. */
|
||
app = lock_table[slot].last_app;
|
||
|
||
if (app)
|
||
{
|
||
lock_table[slot].last_app = NULL;
|
||
deallocate_app (app);
|
||
}
|
||
unlock_reader (slot);
|
||
}
|
||
|
||
|
||
/* This function is used by the serialno command to check for an
|
||
application conflict which may appear if the serialno command is
|
||
used to request a specific application and the connection has
|
||
already done a select_application. */
|
||
gpg_error_t
|
||
check_application_conflict (ctrl_t ctrl, int slot, const char *name)
|
||
{
|
||
app_t app;
|
||
|
||
(void)ctrl;
|
||
|
||
if (slot < 0 || slot >= DIM (lock_table))
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
app = lock_table[slot].initialized ? lock_table[slot].app : NULL;
|
||
if (app && app->apptype && name)
|
||
if ( ascii_strcasecmp (app->apptype, name))
|
||
return gpg_error (GPG_ERR_CONFLICT);
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* If called with NAME as NULL, select the best fitting application
|
||
and return a context; otherwise select the application with NAME
|
||
and return a context. SLOT identifies the reader device. Returns
|
||
an error code and stores NULL at R_APP if no application was found
|
||
or no card is present. */
|
||
gpg_error_t
|
||
select_application (ctrl_t ctrl, int slot, const char *name, app_t *r_app)
|
||
{
|
||
gpg_error_t err;
|
||
app_t app = NULL;
|
||
unsigned char *result = NULL;
|
||
size_t resultlen;
|
||
int want_undefined;
|
||
|
||
(void)ctrl;
|
||
|
||
*r_app = NULL;
|
||
|
||
want_undefined = (name && !strcmp (name, "undefined"));
|
||
|
||
err = lock_reader (slot, ctrl);
|
||
if (err)
|
||
return err;
|
||
|
||
/* First check whether we already have an application to share. */
|
||
app = lock_table[slot].initialized ? lock_table[slot].app : NULL;
|
||
if (app && name)
|
||
if (!app->apptype || ascii_strcasecmp (app->apptype, name))
|
||
{
|
||
unlock_reader (slot);
|
||
if (app->apptype)
|
||
log_info ("application '%s' in use by reader %d - can't switch\n",
|
||
app->apptype, slot);
|
||
return gpg_error (GPG_ERR_CONFLICT);
|
||
}
|
||
|
||
/* Don't use a non-reusable marked application. */
|
||
if (app && app->no_reuse)
|
||
{
|
||
unlock_reader (slot);
|
||
log_info ("lingering application '%s' in use by reader %d"
|
||
" - can't switch\n",
|
||
app->apptype? app->apptype:"?", slot);
|
||
return gpg_error (GPG_ERR_CONFLICT);
|
||
}
|
||
|
||
/* If we don't have an app, check whether we have a saved
|
||
application for that slot. This is useful so that a card does
|
||
not get reset even if only one session is using the card - this
|
||
way the PIN cache and other cached data are preserved. */
|
||
if (!app && lock_table[slot].initialized && lock_table[slot].last_app)
|
||
{
|
||
app = lock_table[slot].last_app;
|
||
if (!name || (app->apptype && !ascii_strcasecmp (app->apptype, name)) )
|
||
{
|
||
/* Yes, we can reuse this application - either the caller
|
||
requested an unspecific one or the requested one matches
|
||
the saved one. */
|
||
lock_table[slot].app = app;
|
||
lock_table[slot].last_app = NULL;
|
||
}
|
||
else
|
||
{
|
||
/* No, this saved application can't be used - deallocate it. */
|
||
lock_table[slot].last_app = NULL;
|
||
deallocate_app (app);
|
||
app = NULL;
|
||
}
|
||
}
|
||
|
||
/* If we can reuse an application, bump the reference count and
|
||
return it. */
|
||
if (app)
|
||
{
|
||
if (app->slot != slot)
|
||
log_bug ("slot mismatch %d/%d\n", app->slot, slot);
|
||
app->slot = slot;
|
||
|
||
app->ref_count++;
|
||
*r_app = app;
|
||
unlock_reader (slot);
|
||
return 0; /* Okay: We share that one. */
|
||
}
|
||
|
||
/* Need to allocate a new one. */
|
||
app = xtrycalloc (1, sizeof *app);
|
||
if (!app)
|
||
{
|
||
err = gpg_error_from_syserror ();
|
||
log_info ("error allocating context: %s\n", gpg_strerror (err));
|
||
unlock_reader (slot);
|
||
return err;
|
||
}
|
||
app->slot = slot;
|
||
|
||
|
||
/* Fixme: We should now first check whether a card is at all
|
||
present. */
|
||
|
||
/* Try to read the GDO file first to get a default serial number.
|
||
We skip this if the undefined application has been requested. */
|
||
if (!want_undefined)
|
||
{
|
||
err = iso7816_select_file (slot, 0x3F00, 1, NULL, NULL);
|
||
if (!err)
|
||
err = iso7816_select_file (slot, 0x2F02, 0, NULL, NULL);
|
||
if (!err)
|
||
err = iso7816_read_binary (slot, 0, 0, &result, &resultlen);
|
||
if (!err)
|
||
{
|
||
size_t n;
|
||
const unsigned char *p;
|
||
|
||
p = find_tlv_unchecked (result, resultlen, 0x5A, &n);
|
||
if (p)
|
||
resultlen -= (p-result);
|
||
if (p && n > resultlen && n == 0x0d && resultlen+1 == n)
|
||
{
|
||
/* The object it does not fit into the buffer. This is an
|
||
invalid encoding (or the buffer is too short. However, I
|
||
have some test cards with such an invalid encoding and
|
||
therefore I use this ugly workaround to return something
|
||
I can further experiment with. */
|
||
log_info ("enabling BMI testcard workaround\n");
|
||
n--;
|
||
}
|
||
|
||
if (p && n <= resultlen)
|
||
{
|
||
/* The GDO file is pretty short, thus we simply reuse it for
|
||
storing the serial number. */
|
||
memmove (result, p, n);
|
||
app->serialno = result;
|
||
app->serialnolen = n;
|
||
err = app_munge_serialno (app);
|
||
if (err)
|
||
goto leave;
|
||
}
|
||
else
|
||
xfree (result);
|
||
result = NULL;
|
||
}
|
||
}
|
||
|
||
/* For certain error codes, there is no need to try more. */
|
||
if (gpg_err_code (err) == GPG_ERR_CARD_NOT_PRESENT
|
||
|| gpg_err_code (err) == GPG_ERR_ENODEV)
|
||
goto leave;
|
||
|
||
/* Figure out the application to use. */
|
||
if (want_undefined)
|
||
{
|
||
/* We switch to the "undefined" application only if explicitly
|
||
requested. */
|
||
app->apptype = "UNDEFINED";
|
||
err = 0;
|
||
}
|
||
else
|
||
err = gpg_error (GPG_ERR_NOT_FOUND);
|
||
|
||
if (err && is_app_allowed ("openpgp")
|
||
&& (!name || !strcmp (name, "openpgp")))
|
||
err = app_select_openpgp (app);
|
||
if (err && is_app_allowed ("nks") && (!name || !strcmp (name, "nks")))
|
||
err = app_select_nks (app);
|
||
if (err && is_app_allowed ("p15") && (!name || !strcmp (name, "p15")))
|
||
err = app_select_p15 (app);
|
||
if (err && is_app_allowed ("geldkarte")
|
||
&& (!name || !strcmp (name, "geldkarte")))
|
||
err = app_select_geldkarte (app);
|
||
if (err && is_app_allowed ("dinsig") && (!name || !strcmp (name, "dinsig")))
|
||
err = app_select_dinsig (app);
|
||
if (err && name)
|
||
err = gpg_error (GPG_ERR_NOT_SUPPORTED);
|
||
|
||
leave:
|
||
if (err)
|
||
{
|
||
if (name)
|
||
log_info ("can't select application '%s': %s\n",
|
||
name, gpg_strerror (err));
|
||
else
|
||
log_info ("no supported card application found: %s\n",
|
||
gpg_strerror (err));
|
||
xfree (app);
|
||
unlock_reader (slot);
|
||
return err;
|
||
}
|
||
|
||
app->ref_count = 1;
|
||
|
||
lock_table[slot].app = app;
|
||
*r_app = app;
|
||
unlock_reader (slot);
|
||
return 0;
|
||
}
|
||
|
||
|
||
char *
|
||
get_supported_applications (void)
|
||
{
|
||
const char *list[] = {
|
||
"openpgp",
|
||
"nks",
|
||
"p15",
|
||
"geldkarte",
|
||
"dinsig",
|
||
/* Note: "undefined" is not listed here because it needs special
|
||
treatment by the client. */
|
||
NULL
|
||
};
|
||
int idx;
|
||
size_t nbytes;
|
||
char *buffer, *p;
|
||
|
||
for (nbytes=1, idx=0; list[idx]; idx++)
|
||
nbytes += strlen (list[idx]) + 1 + 1;
|
||
|
||
buffer = xtrymalloc (nbytes);
|
||
if (!buffer)
|
||
return NULL;
|
||
|
||
for (p=buffer, idx=0; list[idx]; idx++)
|
||
if (is_app_allowed (list[idx]))
|
||
p = stpcpy (stpcpy (p, list[idx]), ":\n");
|
||
*p = 0;
|
||
|
||
return buffer;
|
||
}
|
||
|
||
|
||
/* Deallocate the application. */
|
||
static void
|
||
deallocate_app (app_t app)
|
||
{
|
||
if (app->fnc.deinit)
|
||
{
|
||
app->fnc.deinit (app);
|
||
app->fnc.deinit = NULL;
|
||
}
|
||
|
||
xfree (app->serialno);
|
||
xfree (app);
|
||
}
|
||
|
||
/* Free the resources associated with the application APP. APP is
|
||
allowed to be NULL in which case this is a no-op. Note that we are
|
||
using reference counting to track the users of the application and
|
||
actually deferring the deallocation to allow for a later reuse by
|
||
a new connection. */
|
||
void
|
||
release_application (app_t app)
|
||
{
|
||
int slot;
|
||
|
||
if (!app)
|
||
return;
|
||
|
||
if (!app->ref_count)
|
||
log_bug ("trying to release an already released context\n");
|
||
if (--app->ref_count)
|
||
return;
|
||
|
||
/* Move the reference to the application in the lock table. */
|
||
slot = app->slot;
|
||
/* FIXME: We are ignoring any error value. */
|
||
lock_reader (slot, NULL);
|
||
if (lock_table[slot].app != app)
|
||
{
|
||
unlock_reader (slot);
|
||
log_bug ("app mismatch %p/%p\n", app, lock_table[slot].app);
|
||
deallocate_app (app);
|
||
return;
|
||
}
|
||
|
||
if (lock_table[slot].last_app)
|
||
deallocate_app (lock_table[slot].last_app);
|
||
if (app->no_reuse)
|
||
{
|
||
/* If we shall not re-use the application we can't save it for
|
||
later use. */
|
||
deallocate_app (app);
|
||
lock_table[slot].last_app = NULL;
|
||
}
|
||
else
|
||
lock_table[slot].last_app = lock_table[slot].app;
|
||
lock_table[slot].app = NULL;
|
||
unlock_reader (slot);
|
||
}
|
||
|
||
|
||
|
||
/* The serial number may need some cosmetics. Do it here. This
|
||
function shall only be called once after a new serial number has
|
||
been put into APP->serialno.
|
||
|
||
Prefixes we use:
|
||
|
||
FF 00 00 = For serial numbers starting with an FF
|
||
FF 01 00 = Some german p15 cards return an empty serial number so the
|
||
serial number from the EF(TokenInfo) is used instead.
|
||
FF 7F 00 = No serialno.
|
||
|
||
All other serial number not starting with FF are used as they are.
|
||
*/
|
||
gpg_error_t
|
||
app_munge_serialno (app_t app)
|
||
{
|
||
if (app->serialnolen && app->serialno[0] == 0xff)
|
||
{
|
||
/* The serial number starts with our special prefix. This
|
||
requires that we put our default prefix "FF0000" in front. */
|
||
unsigned char *p = xtrymalloc (app->serialnolen + 3);
|
||
if (!p)
|
||
return gpg_error_from_syserror ();
|
||
memcpy (p, "\xff\0", 3);
|
||
memcpy (p+3, app->serialno, app->serialnolen);
|
||
app->serialnolen += 3;
|
||
xfree (app->serialno);
|
||
app->serialno = p;
|
||
}
|
||
else if (!app->serialnolen)
|
||
{
|
||
unsigned char *p = xtrymalloc (3);
|
||
if (!p)
|
||
return gpg_error_from_syserror ();
|
||
memcpy (p, "\xff\x7f", 3);
|
||
app->serialnolen = 3;
|
||
xfree (app->serialno);
|
||
app->serialno = p;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
/* Retrieve the serial number and the time of the last update of the
|
||
card. The serial number is returned as a malloced string (hex
|
||
encoded) in SERIAL and the time of update is returned in STAMP. If
|
||
no update time is available the returned value is 0. Caller must
|
||
free SERIAL unless the function returns an error. If STAMP is not
|
||
of interest, NULL may be passed. */
|
||
gpg_error_t
|
||
app_get_serial_and_stamp (app_t app, char **serial, time_t *stamp)
|
||
{
|
||
char *buf;
|
||
|
||
if (!app || !serial)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
*serial = NULL;
|
||
if (stamp)
|
||
*stamp = 0; /* not available */
|
||
|
||
if (!app->serialnolen)
|
||
buf = xtrystrdup ("FF7F00");
|
||
else
|
||
buf = bin2hex (app->serialno, app->serialnolen, NULL);
|
||
if (!buf)
|
||
return gpg_error_from_syserror ();
|
||
|
||
*serial = buf;
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* Write out the application specifig status lines for the LEARN
|
||
command. */
|
||
gpg_error_t
|
||
app_write_learn_status (app_t app, ctrl_t ctrl, unsigned int flags)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.learn_status)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
|
||
/* We do not send APPTYPE if only keypairinfo is requested. */
|
||
if (app->apptype && !(flags & 1))
|
||
send_status_info (ctrl, "APPTYPE",
|
||
app->apptype, strlen (app->apptype), NULL, 0);
|
||
err = lock_reader (app->slot, ctrl);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.learn_status (app, ctrl, flags);
|
||
unlock_reader (app->slot);
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Read the certificate with id CERTID (as returned by learn_status in
|
||
the CERTINFO status lines) and return it in the freshly allocated
|
||
buffer put into CERT and the length of the certificate put into
|
||
CERTLEN. */
|
||
gpg_error_t
|
||
app_readcert (app_t app, const char *certid,
|
||
unsigned char **cert, size_t *certlen)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.readcert)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, NULL/* FIXME*/);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.readcert (app, certid, cert, certlen);
|
||
unlock_reader (app->slot);
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Read the key with ID KEYID. On success a canonical encoded
|
||
S-expression with the public key will get stored at PK and its
|
||
length (for assertions) at PKLEN; the caller must release that
|
||
buffer. On error NULL will be stored at PK and PKLEN and an error
|
||
code returned.
|
||
|
||
This function might not be supported by all applications. */
|
||
gpg_error_t
|
||
app_readkey (app_t app, const char *keyid, unsigned char **pk, size_t *pklen)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (pk)
|
||
*pk = NULL;
|
||
if (pklen)
|
||
*pklen = 0;
|
||
|
||
if (!app || !keyid || !pk || !pklen)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.readkey)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, NULL /*FIXME*/);
|
||
if (err)
|
||
return err;
|
||
err= app->fnc.readkey (app, keyid, pk, pklen);
|
||
unlock_reader (app->slot);
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Perform a GETATTR operation. */
|
||
gpg_error_t
|
||
app_getattr (app_t app, ctrl_t ctrl, const char *name)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !name || !*name)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
|
||
if (app->apptype && name && !strcmp (name, "APPTYPE"))
|
||
{
|
||
send_status_info (ctrl, "APPTYPE",
|
||
app->apptype, strlen (app->apptype), NULL, 0);
|
||
return 0;
|
||
}
|
||
if (name && !strcmp (name, "SERIALNO"))
|
||
{
|
||
char *serial;
|
||
time_t stamp;
|
||
int rc;
|
||
|
||
rc = app_get_serial_and_stamp (app, &serial, &stamp);
|
||
if (rc)
|
||
return rc;
|
||
send_status_info (ctrl, "SERIALNO", serial, strlen (serial), NULL, 0);
|
||
xfree (serial);
|
||
return 0;
|
||
}
|
||
|
||
if (!app->fnc.getattr)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, ctrl);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.getattr (app, ctrl, name);
|
||
unlock_reader (app->slot);
|
||
return err;
|
||
}
|
||
|
||
/* Perform a SETATTR operation. */
|
||
gpg_error_t
|
||
app_setattr (app_t app, const char *name,
|
||
gpg_error_t (*pincb)(void*, const char *, char **),
|
||
void *pincb_arg,
|
||
const unsigned char *value, size_t valuelen)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !name || !*name || !value)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.setattr)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, NULL /*FIXME*/);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.setattr (app, name, pincb, pincb_arg, value, valuelen);
|
||
unlock_reader (app->slot);
|
||
return err;
|
||
}
|
||
|
||
/* Create the signature and return the allocated result in OUTDATA.
|
||
If a PIN is required the PINCB will be used to ask for the PIN; it
|
||
should return the PIN in an allocated buffer and put it into PIN. */
|
||
gpg_error_t
|
||
app_sign (app_t app, const char *keyidstr, int hashalgo,
|
||
gpg_error_t (*pincb)(void*, const char *, char **),
|
||
void *pincb_arg,
|
||
const void *indata, size_t indatalen,
|
||
unsigned char **outdata, size_t *outdatalen )
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !indata || !indatalen || !outdata || !outdatalen || !pincb)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.sign)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, NULL /*FIXME*/);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.sign (app, keyidstr, hashalgo,
|
||
pincb, pincb_arg,
|
||
indata, indatalen,
|
||
outdata, outdatalen);
|
||
unlock_reader (app->slot);
|
||
if (opt.verbose)
|
||
log_info ("operation sign result: %s\n", gpg_strerror (err));
|
||
return err;
|
||
}
|
||
|
||
/* Create the signature using the INTERNAL AUTHENTICATE command and
|
||
return the allocated result in OUTDATA. If a PIN is required the
|
||
PINCB will be used to ask for the PIN; it should return the PIN in
|
||
an allocated buffer and put it into PIN. */
|
||
gpg_error_t
|
||
app_auth (app_t app, const char *keyidstr,
|
||
gpg_error_t (*pincb)(void*, const char *, char **),
|
||
void *pincb_arg,
|
||
const void *indata, size_t indatalen,
|
||
unsigned char **outdata, size_t *outdatalen )
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !indata || !indatalen || !outdata || !outdatalen || !pincb)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.auth)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, NULL /*FIXME*/);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.auth (app, keyidstr,
|
||
pincb, pincb_arg,
|
||
indata, indatalen,
|
||
outdata, outdatalen);
|
||
unlock_reader (app->slot);
|
||
if (opt.verbose)
|
||
log_info ("operation auth result: %s\n", gpg_strerror (err));
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Decrypt the data in INDATA and return the allocated result in OUTDATA.
|
||
If a PIN is required the PINCB will be used to ask for the PIN; it
|
||
should return the PIN in an allocated buffer and put it into PIN. */
|
||
gpg_error_t
|
||
app_decipher (app_t app, const char *keyidstr,
|
||
gpg_error_t (*pincb)(void*, const char *, char **),
|
||
void *pincb_arg,
|
||
const void *indata, size_t indatalen,
|
||
unsigned char **outdata, size_t *outdatalen )
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !indata || !indatalen || !outdata || !outdatalen || !pincb)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.decipher)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, NULL /*FIXME*/);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.decipher (app, keyidstr,
|
||
pincb, pincb_arg,
|
||
indata, indatalen,
|
||
outdata, outdatalen);
|
||
unlock_reader (app->slot);
|
||
if (opt.verbose)
|
||
log_info ("operation decipher result: %s\n", gpg_strerror (err));
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Perform the WRITECERT operation. */
|
||
gpg_error_t
|
||
app_writecert (app_t app, ctrl_t ctrl,
|
||
const char *certidstr,
|
||
gpg_error_t (*pincb)(void*, const char *, char **),
|
||
void *pincb_arg,
|
||
const unsigned char *data, size_t datalen)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !certidstr || !*certidstr || !pincb)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.writecert)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, ctrl);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.writecert (app, ctrl, certidstr,
|
||
pincb, pincb_arg, data, datalen);
|
||
unlock_reader (app->slot);
|
||
if (opt.verbose)
|
||
log_info ("operation writecert result: %s\n", gpg_strerror (err));
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Perform the WRITEKEY operation. */
|
||
gpg_error_t
|
||
app_writekey (app_t app, ctrl_t ctrl,
|
||
const char *keyidstr, unsigned int flags,
|
||
gpg_error_t (*pincb)(void*, const char *, char **),
|
||
void *pincb_arg,
|
||
const unsigned char *keydata, size_t keydatalen)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !keyidstr || !*keyidstr || !pincb)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.writekey)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, ctrl);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.writekey (app, ctrl, keyidstr, flags,
|
||
pincb, pincb_arg, keydata, keydatalen);
|
||
unlock_reader (app->slot);
|
||
if (opt.verbose)
|
||
log_info ("operation writekey result: %s\n", gpg_strerror (err));
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Perform a SETATTR operation. */
|
||
gpg_error_t
|
||
app_genkey (app_t app, ctrl_t ctrl, const char *keynostr, unsigned int flags,
|
||
time_t createtime,
|
||
gpg_error_t (*pincb)(void*, const char *, char **),
|
||
void *pincb_arg)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !keynostr || !*keynostr || !pincb)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.genkey)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, ctrl);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.genkey (app, ctrl, keynostr, flags,
|
||
createtime, pincb, pincb_arg);
|
||
unlock_reader (app->slot);
|
||
if (opt.verbose)
|
||
log_info ("operation genkey result: %s\n", gpg_strerror (err));
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Perform a GET CHALLENGE operation. This fucntion is special as it
|
||
directly accesses the card without any application specific
|
||
wrapper. */
|
||
gpg_error_t
|
||
app_get_challenge (app_t app, size_t nbytes, unsigned char *buffer)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !nbytes || !buffer)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
err = lock_reader (app->slot, NULL /*FIXME*/);
|
||
if (err)
|
||
return err;
|
||
err = iso7816_get_challenge (app->slot, nbytes, buffer);
|
||
unlock_reader (app->slot);
|
||
return err;
|
||
}
|
||
|
||
|
||
|
||
/* Perform a CHANGE REFERENCE DATA or RESET RETRY COUNTER operation. */
|
||
gpg_error_t
|
||
app_change_pin (app_t app, ctrl_t ctrl, const char *chvnostr, int reset_mode,
|
||
gpg_error_t (*pincb)(void*, const char *, char **),
|
||
void *pincb_arg)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !chvnostr || !*chvnostr || !pincb)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.change_pin)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, ctrl);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.change_pin (app, ctrl, chvnostr, reset_mode,
|
||
pincb, pincb_arg);
|
||
unlock_reader (app->slot);
|
||
if (opt.verbose)
|
||
log_info ("operation change_pin result: %s\n", gpg_strerror (err));
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Perform a VERIFY operation without doing anything lese. This may
|
||
be used to initialze a the PIN cache for long lasting other
|
||
operations. Its use is highly application dependent. */
|
||
gpg_error_t
|
||
app_check_pin (app_t app, const char *keyidstr,
|
||
gpg_error_t (*pincb)(void*, const char *, char **),
|
||
void *pincb_arg)
|
||
{
|
||
gpg_error_t err;
|
||
|
||
if (!app || !keyidstr || !*keyidstr || !pincb)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!app->ref_count)
|
||
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
|
||
if (!app->fnc.check_pin)
|
||
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
|
||
err = lock_reader (app->slot, NULL /*FIXME*/);
|
||
if (err)
|
||
return err;
|
||
err = app->fnc.check_pin (app, keyidstr, pincb, pincb_arg);
|
||
unlock_reader (app->slot);
|
||
if (opt.verbose)
|
||
log_info ("operation check_pin result: %s\n", gpg_strerror (err));
|
||
return err;
|
||
}
|