/* engine.c - GPGME engine support.
* Copyright (C) 2000 Werner Koch (dd9jn)
* Copyright (C) 2001, 2002, 2003, 2004, 2006, 2009, 2010 g10 Code GmbH
*
* This file is part of GPGME.
*
* GPGME is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* GPGME 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <https://gnu.org/licenses/>.
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "gpgme.h"
#include "util.h"
#include "sema.h"
#include "ops.h"
#include "debug.h"
#include "engine.h"
#include "engine-backend.h"
struct engine
{
struct engine_ops *ops;
void *engine;
};
static struct engine_ops *engine_ops[] =
{
&_gpgme_engine_ops_gpg, /* OpenPGP. */
&_gpgme_engine_ops_gpgsm, /* CMS. */
&_gpgme_engine_ops_gpgconf, /* gpg-conf. */
&_gpgme_engine_ops_assuan, /* Low-Level Assuan. */
&_gpgme_engine_ops_g13, /* Crypto VFS. */
#ifdef ENABLE_UISERVER
&_gpgme_engine_ops_uiserver, /* UI-Server. */
#else
NULL,
#endif
&_gpgme_engine_ops_spawn
};
/* The engine info. */
static gpgme_engine_info_t engine_info;
DEFINE_STATIC_LOCK (engine_info_lock);
/* If non-NULL, the minimal version required for all engines. */
static char *engine_minimal_version;
/* Get the file name of the engine for PROTOCOL. */
static const char *
engine_get_file_name (gpgme_protocol_t proto)
{
if (proto > DIM (engine_ops))
return NULL;
if (engine_ops[proto] && engine_ops[proto]->get_file_name)
return (*engine_ops[proto]->get_file_name) ();
else
return NULL;
}
/* Get the standard home dir of the engine for PROTOCOL. */
static const char *
engine_get_home_dir (gpgme_protocol_t proto)
{
if (proto > DIM (engine_ops))
return NULL;
if (engine_ops[proto] && engine_ops[proto]->get_home_dir)
return (*engine_ops[proto]->get_home_dir) ();
else
return NULL;
}
/* Get a malloced string containing the version number of the engine
* for PROTOCOL. If this function returns NULL for a valid protocol,
* it should be assumed that the engine is a pseudo engine. */
static char *
engine_get_version (gpgme_protocol_t proto, const char *file_name)
{
if (proto > DIM (engine_ops))
return NULL;
if (engine_ops[proto] && engine_ops[proto]->get_version)
return (*engine_ops[proto]->get_version) (file_name);
else
return NULL;
}
/* Get the required version number of the engine for PROTOCOL. This
* may be NULL. */
static const char *
engine_get_req_version (gpgme_protocol_t proto)
{
if (proto > DIM (engine_ops))
return NULL;
if (engine_ops[proto] && engine_ops[proto]->get_req_version)
return (*engine_ops[proto]->get_req_version) ();
else
return NULL;
}
/* Verify the version requirement for the engine for PROTOCOL. */
gpgme_error_t
gpgme_engine_check_version (gpgme_protocol_t proto)
{
gpgme_error_t err;
gpgme_engine_info_t info;
int result;
LOCK (engine_info_lock);
info = engine_info;
if (!info)
{
/* Make sure it is initialized. */
UNLOCK (engine_info_lock);
err = gpgme_get_engine_info (&info);
if (err)
return err;
LOCK (engine_info_lock);
}
while (info && info->protocol != proto)
info = info->next;
if (!info)
result = 0;
else
result = _gpgme_compare_versions (info->version,
info->req_version);
UNLOCK (engine_info_lock);
return result ? 0 : trace_gpg_error (GPG_ERR_INV_ENGINE);
}
/* Release the engine info INFO. */
void
_gpgme_engine_info_release (gpgme_engine_info_t info)
{
while (info)
{
gpgme_engine_info_t next_info = info->next;
if (info->file_name)
free (info->file_name);
if (info->home_dir)
free (info->home_dir);
if (info->version)
free (info->version);
free (info);
info = next_info;
}
}
/* This is an internal function to set a mimimal required version.
* This function must only be called by gpgme_set_global_flag.
* Returns 0 on success. */
int
_gpgme_set_engine_minimal_version (const char *value)
{
free (engine_minimal_version);
if (value)
{
engine_minimal_version = strdup (value);
return !engine_minimal_version;
}
else
{
engine_minimal_version = NULL;
return 0;
}
}
/* Get the information about the configured and installed engines. A
pointer to the first engine in the statically allocated linked list
is returned in *INFO. If an error occurs, it is returned. The
returned data is valid until the next gpgme_set_engine_info. */
gpgme_error_t
gpgme_get_engine_info (gpgme_engine_info_t *info)
{
gpgme_error_t err;
LOCK (engine_info_lock);
if (!engine_info)
{
gpgme_engine_info_t *lastp = &engine_info;
gpgme_protocol_t proto_list[] = { GPGME_PROTOCOL_OpenPGP,
GPGME_PROTOCOL_CMS,
GPGME_PROTOCOL_GPGCONF,
GPGME_PROTOCOL_ASSUAN,
GPGME_PROTOCOL_G13,
GPGME_PROTOCOL_UISERVER,
GPGME_PROTOCOL_SPAWN };
unsigned int proto;
err = 0;
for (proto = 0; proto < DIM (proto_list); proto++)
{
const char *ofile_name = engine_get_file_name (proto_list[proto]);
const char *ohome_dir = engine_get_home_dir (proto_list[proto]);
char *version = engine_get_version (proto_list[proto], NULL);
char *file_name;
char *home_dir;
if (!ofile_name)
continue;
file_name = strdup (ofile_name);
if (!file_name)
err = gpg_error_from_syserror ();
if (ohome_dir)
{
home_dir = strdup (ohome_dir);
if (!home_dir && !err)
err = gpg_error_from_syserror ();
}
else
home_dir = NULL;
*lastp = calloc (1, sizeof (*engine_info));
if (!*lastp && !err)
err = gpg_error_from_syserror ();
/* Check against the optional minimal engine version. */
if (!err && version && engine_minimal_version
&& !_gpgme_compare_versions (version, engine_minimal_version))
{
#if GPG_ERROR_VERSION_NUMBER < 0x011900 /* 1.25 */
err = gpg_error (GPG_ERR_NO_ENGINE);
#else
err = gpg_error (GPG_ERR_ENGINE_TOO_OLD);
#endif
}
/* Now set the dummy version for pseudo engines. */
if (!err && !version)
{
version = strdup ("1.0.0");
if (!version)
err = gpg_error_from_syserror ();
}
if (err)
{
_gpgme_engine_info_release (engine_info);
engine_info = NULL;
if (file_name)
free (file_name);
if (home_dir)
free (home_dir);
if (version)
free (version);
UNLOCK (engine_info_lock);
return err;
}
(*lastp)->protocol = proto_list[proto];
(*lastp)->file_name = file_name;
(*lastp)->home_dir = home_dir;
(*lastp)->version = version;
(*lastp)->req_version = engine_get_req_version (proto_list[proto]);
if (!(*lastp)->req_version)
(*lastp)->req_version = "1.0.0"; /* Dummy for pseudo engines. */
(*lastp)->next = NULL;
lastp = &(*lastp)->next;
}
}
*info = engine_info;
UNLOCK (engine_info_lock);
return 0;
}
/* Get a deep copy of the engine info and return it in INFO. */
gpgme_error_t
_gpgme_engine_info_copy (gpgme_engine_info_t *r_info)
{
gpgme_error_t err = 0;
gpgme_engine_info_t info;
gpgme_engine_info_t new_info;
gpgme_engine_info_t *lastp;
LOCK (engine_info_lock);
info = engine_info;
if (!info)
{
/* Make sure it is initialized. */
UNLOCK (engine_info_lock);
err = gpgme_get_engine_info (&info);
if (err)
return err;
LOCK (engine_info_lock);
}
new_info = NULL;
lastp = &new_info;
while (info)
{
char *file_name;
char *home_dir;
char *version;
assert (info->file_name);
file_name = strdup (info->file_name);
if (!file_name)
err = gpg_error_from_syserror ();
if (info->home_dir)
{
home_dir = strdup (info->home_dir);
if (!home_dir && !err)
err = gpg_error_from_syserror ();
}
else
home_dir = NULL;
if (info->version)
{
version = strdup (info->version);
if (!version && !err)
err = gpg_error_from_syserror ();
}
else
version = NULL;
*lastp = malloc (sizeof (*engine_info));
if (!*lastp && !err)
err = gpg_error_from_syserror ();
if (err)
{
_gpgme_engine_info_release (new_info);
if (file_name)
free (file_name);
if (home_dir)
free (home_dir);
if (version)
free (version);
UNLOCK (engine_info_lock);
return err;
}
(*lastp)->protocol = info->protocol;
(*lastp)->file_name = file_name;
(*lastp)->home_dir = home_dir;
(*lastp)->version = version;
(*lastp)->req_version = info->req_version;
(*lastp)->next = NULL;
lastp = &(*lastp)->next;
info = info->next;
}
*r_info = new_info;
UNLOCK (engine_info_lock);
return 0;
}
/* Set the engine info for the info list INFO, protocol PROTO, to the
file name FILE_NAME and the home directory HOME_DIR. */
gpgme_error_t
_gpgme_set_engine_info (gpgme_engine_info_t info, gpgme_protocol_t proto,
const char *file_name, const char *home_dir)
{
char *new_file_name;
char *new_home_dir;
char *new_version;
/* FIXME: Use some PROTO_MAX definition. */
if (proto > DIM (engine_ops))
return gpg_error (GPG_ERR_INV_VALUE);
while (info && info->protocol != proto)
info = info->next;
if (!info)
return trace_gpg_error (GPG_ERR_INV_ENGINE);
/* Prepare new members. */
if (file_name)
new_file_name = strdup (file_name);
else
{
const char *ofile_name = engine_get_file_name (proto);
assert (ofile_name);
new_file_name = strdup (ofile_name);
}
if (!new_file_name)
return gpg_error_from_syserror ();
if (home_dir)
{
new_home_dir = strdup (home_dir);
if (!new_home_dir)
{
free (new_file_name);
return gpg_error_from_syserror ();
}
}
else
{
const char *ohome_dir = engine_get_home_dir (proto);
if (ohome_dir)
{
new_home_dir = strdup (ohome_dir);
if (!new_home_dir)
{
free (new_file_name);
return gpg_error_from_syserror ();
}
}
else
new_home_dir = NULL;
}
new_version = engine_get_version (proto, new_file_name);
if (!new_version)
{
new_version = strdup ("1.0.0"); /* Fake one for dummy entries. */
if (!new_version)
{
free (new_file_name);
if (new_home_dir)
free (new_home_dir);
return gpg_error_from_syserror ();
}
}
/* Remove the old members. */
assert (info->file_name);
free (info->file_name);
if (info->home_dir)
free (info->home_dir);
if (info->version)
free (info->version);
/* Install the new members. */
info->file_name = new_file_name;
info->home_dir = new_home_dir;
info->version = new_version;
return 0;
}
/* Set the default engine info for the protocol PROTO to the file name
FILE_NAME and the home directory HOME_DIR. */
gpgme_error_t
gpgme_set_engine_info (gpgme_protocol_t proto,
const char *file_name, const char *home_dir)
{
gpgme_error_t err;
gpgme_engine_info_t info;
LOCK (engine_info_lock);
info = engine_info;
if (!info)
{
/* Make sure it is initialized. */
UNLOCK (engine_info_lock);
err = gpgme_get_engine_info (&info);
if (err)
return err;
LOCK (engine_info_lock);
}
err = _gpgme_set_engine_info (info, proto, file_name, home_dir);
UNLOCK (engine_info_lock);
return err;
}
gpgme_error_t
_gpgme_engine_new (gpgme_engine_info_t info, engine_t *r_engine)
{
engine_t engine;
if (!info->file_name || !info->version)
return trace_gpg_error (GPG_ERR_INV_ENGINE);
engine = calloc (1, sizeof *engine);
if (!engine)
return gpg_error_from_syserror ();
engine->ops = engine_ops[info->protocol];
if (engine->ops->new)
{
gpgme_error_t err;
err = (*engine->ops->new) (&engine->engine,
info->file_name, info->home_dir,
info->version);
if (err)
{
free (engine);
return err;
}
}
else
engine->engine = NULL;
*r_engine = engine;
return 0;
}
gpgme_error_t
_gpgme_engine_reset (engine_t engine)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->reset)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->reset) (engine->engine);
}
void
_gpgme_engine_release (engine_t engine)
{
if (!engine)
return;
if (engine->ops->release)
(*engine->ops->release) (engine->engine);
free (engine);
}
/* Set a status callback which is used to monitor the status values
* before they are passed to a handler set with
* _gpgme_engine_set_status_handler. */
void
_gpgme_engine_set_status_cb (engine_t engine,
gpgme_status_cb_t cb, void *cb_value)
{
if (!engine)
return;
if (engine->ops->set_status_cb)
(*engine->ops->set_status_cb) (engine->engine, cb, cb_value);
}
void
_gpgme_engine_set_status_handler (engine_t engine,
engine_status_handler_t fnc, void *fnc_value)
{
if (!engine)
return;
if (engine->ops->set_status_handler)
(*engine->ops->set_status_handler) (engine->engine, fnc, fnc_value);
}
gpgme_error_t
_gpgme_engine_set_command_handler (engine_t engine,
engine_command_handler_t fnc,
void *fnc_value)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->set_command_handler)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->set_command_handler) (engine->engine, fnc, fnc_value);
}
gpgme_error_t
_gpgme_engine_set_colon_line_handler (engine_t engine,
engine_colon_line_handler_t fnc,
void *fnc_value)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->set_colon_line_handler)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->set_colon_line_handler) (engine->engine,
fnc, fnc_value);
}
gpgme_error_t
_gpgme_engine_set_locale (engine_t engine, int category,
const char *value)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->set_locale)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->set_locale) (engine->engine, category, value);
}
gpgme_error_t
_gpgme_engine_set_protocol (engine_t engine, gpgme_protocol_t protocol)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->set_protocol)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->set_protocol) (engine->engine, protocol);
}
/* Pass information about the current context to the engine. The
* engine may use this context to retrieve context specific flags.
* Important: The engine is required to immediately copy the required
* flags to its own context!
*
* This function will eventually be used to reduce the number of
* explicit passed flags. */
void
_gpgme_engine_set_engine_flags (engine_t engine, gpgme_ctx_t ctx)
{
if (!engine)
return;
if (!engine->ops->set_engine_flags)
return;
(*engine->ops->set_engine_flags) (engine->engine, ctx);
}
gpgme_error_t
_gpgme_engine_op_decrypt (engine_t engine,
gpgme_decrypt_flags_t flags,
gpgme_data_t ciph,
gpgme_data_t plain, int export_session_key,
const char *override_session_key,
int auto_key_retrieve)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->decrypt)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->decrypt) (engine->engine, flags, ciph, plain,
export_session_key, override_session_key,
auto_key_retrieve);
}
gpgme_error_t
_gpgme_engine_op_delete (engine_t engine, gpgme_key_t key,
unsigned int flags)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->delete)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->delete) (engine->engine, key, flags);
}
gpgme_error_t
_gpgme_engine_op_edit (engine_t engine, int type, gpgme_key_t key,
gpgme_data_t out, gpgme_ctx_t ctx /* FIXME */)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->edit)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->edit) (engine->engine, type, key, out, ctx);
}
gpgme_error_t
_gpgme_engine_op_encrypt (engine_t engine, gpgme_key_t recp[],
const char *recpstring,
gpgme_encrypt_flags_t flags,
gpgme_data_t plain, gpgme_data_t ciph, int use_armor)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->encrypt)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->encrypt) (engine->engine, recp, recpstring,
flags, plain, ciph, use_armor);
}
gpgme_error_t
_gpgme_engine_op_encrypt_sign (engine_t engine, gpgme_key_t recp[],
const char *recpstring,
gpgme_encrypt_flags_t flags,
gpgme_data_t plain, gpgme_data_t ciph,
int use_armor, gpgme_ctx_t ctx /* FIXME */)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->encrypt_sign)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->encrypt_sign) (engine->engine, recp, recpstring,
flags, plain, ciph, use_armor, ctx);
}
gpgme_error_t
_gpgme_engine_op_export (engine_t engine, const char *pattern,
gpgme_export_mode_t mode, gpgme_data_t keydata,
int use_armor)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->export)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->export) (engine->engine, pattern, mode,
keydata, use_armor);
}
gpgme_error_t
_gpgme_engine_op_export_ext (engine_t engine, const char *pattern[],
unsigned int reserved, gpgme_data_t keydata,
int use_armor)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->export_ext)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->export_ext) (engine->engine, pattern, reserved,
keydata, use_armor);
}
gpgme_error_t
_gpgme_engine_op_genkey (engine_t engine,
const char *userid, const char *algo,
unsigned long reserved, unsigned long expires,
gpgme_key_t key, unsigned int flags,
gpgme_data_t help_data,
unsigned int extraflags,
gpgme_data_t pubkey, gpgme_data_t seckey)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->genkey)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->genkey) (engine->engine,
userid, algo, reserved, expires, key, flags,
help_data, extraflags,
pubkey, seckey);
}
gpgme_error_t
_gpgme_engine_op_keysign (engine_t engine, gpgme_key_t key, const char *userid,
unsigned long expires, unsigned int flags,
gpgme_ctx_t ctx)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->keysign)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->keysign) (engine->engine,
key, userid, expires, flags, ctx);
}
gpgme_error_t
_gpgme_engine_op_tofu_policy (engine_t engine,
gpgme_key_t key, gpgme_tofu_policy_t policy)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->tofu_policy)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->tofu_policy) (engine->engine, key, policy);
}
gpgme_error_t
_gpgme_engine_op_import (engine_t engine, gpgme_data_t keydata,
gpgme_key_t *keyarray)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->import)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->import) (engine->engine, keydata, keyarray);
}
gpgme_error_t
_gpgme_engine_op_keylist (engine_t engine, const char *pattern,
int secret_only, gpgme_keylist_mode_t mode,
int engine_flags)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->keylist)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->keylist) (engine->engine, pattern, secret_only, mode,
engine_flags);
}
gpgme_error_t
_gpgme_engine_op_keylist_ext (engine_t engine, const char *pattern[],
int secret_only, int reserved,
gpgme_keylist_mode_t mode, int engine_flags)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->keylist_ext)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->keylist_ext) (engine->engine, pattern, secret_only,
reserved, mode, engine_flags);
}
gpgme_error_t
_gpgme_engine_op_keylist_data (engine_t engine, gpgme_data_t data)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->keylist_data)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->keylist_data) (engine->engine, data);
}
gpgme_error_t
_gpgme_engine_op_sign (engine_t engine, gpgme_data_t in, gpgme_data_t out,
gpgme_sig_mode_t mode, int use_armor,
int use_textmode, int include_certs,
gpgme_ctx_t ctx /* FIXME */)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->sign)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->sign) (engine->engine, in, out, mode, use_armor,
use_textmode, include_certs, ctx);
}
gpgme_error_t
_gpgme_engine_op_trustlist (engine_t engine, const char *pattern)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->trustlist)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->trustlist) (engine->engine, pattern);
}
gpgme_error_t
_gpgme_engine_op_verify (engine_t engine, gpgme_data_t sig,
gpgme_data_t signed_text, gpgme_data_t plaintext,
gpgme_ctx_t ctx)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->verify)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->verify) (engine->engine, sig, signed_text, plaintext,
ctx);
}
gpgme_error_t
_gpgme_engine_op_getauditlog (engine_t engine, gpgme_data_t output,
unsigned int flags)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->getauditlog)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->getauditlog) (engine->engine, output, flags);
}
gpgme_error_t
_gpgme_engine_op_assuan_transact (engine_t engine,
const char *command,
gpgme_assuan_data_cb_t data_cb,
void *data_cb_value,
gpgme_assuan_inquire_cb_t inq_cb,
void *inq_cb_value,
gpgme_assuan_status_cb_t status_cb,
void *status_cb_value)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->opassuan_transact)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->opassuan_transact) (engine->engine,
command,
data_cb, data_cb_value,
inq_cb, inq_cb_value,
status_cb, status_cb_value);
}
gpgme_error_t
_gpgme_engine_op_conf_load (engine_t engine, gpgme_conf_comp_t *conf_p)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->conf_load)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->conf_load) (engine->engine, conf_p);
}
gpgme_error_t
_gpgme_engine_op_conf_save (engine_t engine, gpgme_conf_comp_t conf)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->conf_save)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->conf_save) (engine->engine, conf);
}
gpgme_error_t
_gpgme_engine_op_conf_dir (engine_t engine, const char *what, char **result)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->conf_dir)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->conf_dir) (engine->engine, what, result);
}
gpgme_error_t
_gpgme_engine_op_query_swdb (engine_t engine,
const char *name, const char *iversion,
gpgme_query_swdb_result_t result)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->query_swdb)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->query_swdb) (engine->engine, name, iversion, result);
}
void
_gpgme_engine_set_io_cbs (engine_t engine, gpgme_io_cbs_t io_cbs)
{
if (!engine)
return;
(*engine->ops->set_io_cbs) (engine->engine, io_cbs);
}
void
_gpgme_engine_io_event (engine_t engine,
gpgme_event_io_t type, void *type_data)
{
if (!engine)
return;
(*engine->ops->io_event) (engine->engine, type, type_data);
}
/* Cancel the session and the pending operation if any. */
gpgme_error_t
_gpgme_engine_cancel (engine_t engine)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->cancel)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->cancel) (engine->engine);
}
/* Cancel the pending operation, but not the complete session. */
gpgme_error_t
_gpgme_engine_cancel_op (engine_t engine)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->cancel_op)
return 0;
return (*engine->ops->cancel_op) (engine->engine);
}
/* Change the passphrase for KEY. */
gpgme_error_t
_gpgme_engine_op_passwd (engine_t engine, gpgme_key_t key,
unsigned int flags)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->passwd)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->passwd) (engine->engine, key, flags);
}
/* Set the pinentry mode for ENGINE to MODE. */
gpgme_error_t
_gpgme_engine_set_pinentry_mode (engine_t engine, gpgme_pinentry_mode_t mode)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->set_pinentry_mode)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->set_pinentry_mode) (engine->engine, mode);
}
gpgme_error_t
_gpgme_engine_op_spawn (engine_t engine,
const char *file, const char *argv[],
gpgme_data_t datain,
gpgme_data_t dataout, gpgme_data_t dataerr,
unsigned int flags)
{
if (!engine)
return gpg_error (GPG_ERR_INV_VALUE);
if (!engine->ops->opspawn)
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return (*engine->ops->opspawn) (engine->engine, file, argv,
datain, dataout, dataerr, flags);
}