mirror of git://git.gnupg.org/gnupg.git
129 lines
3.0 KiB
C
129 lines
3.0 KiB
C
|
/* backend-support.c - Supporting functions for the backend.
|
||
|
|
* Copyright (C) 2019 g10 Code GmbH
|
||
|
|
*
|
||
|
|
* 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 <https://www.gnu.org/licenses/>.
|
||
|
|
* SPDX-License-Identifier: GPL-3.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <config.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include "keyboxd.h"
|
||
|
|
#include "../common/i18n.h"
|
||
|
|
#include "../common/asshelp.h"
|
||
|
|
#include "backend.h"
|
||
|
|
|
||
|
|
|
||
|
|
/* Common definition part of all backend handle. */
|
||
|
|
struct backend_handle_s
|
||
|
|
{
|
||
|
|
enum database_types db_type;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/* Return a string with the name of the database type T. */
|
||
|
|
const char *
|
||
|
|
strdbtype (enum database_types t)
|
||
|
|
{
|
||
|
|
switch (t)
|
||
|
|
{
|
||
|
|
case DB_TYPE_NONE: return "none";
|
||
|
|
case DB_TYPE_KBX: return "keybox";
|
||
|
|
}
|
||
|
|
return "?";
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Return a new backend ID. Backend IDs are used to identify backends
|
||
|
|
* without using the actual object. The number of backend resources
|
||
|
|
* is limited because they are specified in the config file. Thus an
|
||
|
|
* overflow check is not required. */
|
||
|
|
unsigned int
|
||
|
|
be_new_backend_id (void)
|
||
|
|
{
|
||
|
|
static unsigned int last;
|
||
|
|
|
||
|
|
return ++last;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Release the backend described by HD. This is a generic function
|
||
|
|
* which dispatches to the the actual backend. */
|
||
|
|
void
|
||
|
|
be_generic_release_backend (ctrl_t ctrl, backend_handle_t hd)
|
||
|
|
{
|
||
|
|
if (!hd)
|
||
|
|
return;
|
||
|
|
switch (hd->db_type)
|
||
|
|
{
|
||
|
|
case DB_TYPE_NONE:
|
||
|
|
xfree (hd);
|
||
|
|
break;
|
||
|
|
case DB_TYPE_KBX:
|
||
|
|
be_kbx_release_resource (ctrl, hd);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
log_error ("%s: faulty backend handle of type %d given\n",
|
||
|
|
__func__, hd->db_type);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Release the request object REQ. */
|
||
|
|
void
|
||
|
|
be_release_request (db_request_t req)
|
||
|
|
{
|
||
|
|
db_request_part_t part, partn;
|
||
|
|
|
||
|
|
if (!req)
|
||
|
|
return;
|
||
|
|
|
||
|
|
for (part = req->part; part; part = partn)
|
||
|
|
{
|
||
|
|
partn = part->next;
|
||
|
|
be_kbx_release_kbx_hd (part->kbx_hd);
|
||
|
|
xfree (part);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Return the public key (BUFFER,BUFLEN) which has the type
|
||
|
|
* PUBVKEY_TYPE to the caller. Owenership of BUFFER is taken by thgis
|
||
|
|
* function even in the error case. */
|
||
|
|
gpg_error_t
|
||
|
|
be_return_pubkey (ctrl_t ctrl, void *buffer, size_t buflen,
|
||
|
|
enum pubkey_types pubkey_type)
|
||
|
|
{
|
||
|
|
gpg_error_t err;
|
||
|
|
|
||
|
|
err = status_printf (ctrl, "PUBKEY_TYPE", "%d", pubkey_type);
|
||
|
|
if (err)
|
||
|
|
goto leave;
|
||
|
|
|
||
|
|
if (ctrl->no_data_return)
|
||
|
|
err = 0;
|
||
|
|
else
|
||
|
|
err = kbxd_write_data_line(ctrl, buffer, buflen);
|
||
|
|
|
||
|
|
leave:
|
||
|
|
xfree (buffer);
|
||
|
|
return err;
|
||
|
|
}
|