diff options
Diffstat (limited to 'libtdenetwork/libgpgme-copy/gpgme/engine.c')
| -rw-r--r-- | libtdenetwork/libgpgme-copy/gpgme/engine.c | 744 |
1 files changed, 744 insertions, 0 deletions
diff --git a/libtdenetwork/libgpgme-copy/gpgme/engine.c b/libtdenetwork/libgpgme-copy/gpgme/engine.c new file mode 100644 index 000000000..ae5bc8674 --- /dev/null +++ b/libtdenetwork/libgpgme-copy/gpgme/engine.c @@ -0,0 +1,744 @@ +/* engine.c - GPGME engine support. + Copyright (C) 2000 Werner Koch (dd9jn) + Copyright (C) 2001, 2002, 2003, 2004, 2006 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, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301, USA. */ + +#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 "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. */ +#ifdef ENABLE_GPGSM + &_gpgme_engine_ops_gpgsm /* CMS. */ +#else + NULL +#endif + }; + + +/* The engine info. */ +static gpgme_engine_info_t engine_info; +DEFINE_STATIC_LOCK (engine_info_lock); + + +/* 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 a malloced string containing the version number of the engine + for PROTOCOL. */ +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. */ +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 : 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; + + assert (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; + } +} + + +/* 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) +{ + 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 }; + unsigned int proto; + + for (proto = 0; proto < DIM (proto_list); proto++) + { + const char *ofile_name = engine_get_file_name (proto_list[proto]); + char *file_name; + + if (!ofile_name) + continue; + + file_name = strdup (ofile_name); + + *lastp = malloc (sizeof (*engine_info)); + if (!*lastp || !file_name) + { + int saved_errno = errno; + + _gpgme_engine_info_release (engine_info); + engine_info = NULL; + + if (file_name) + free (file_name); + + UNLOCK (engine_info_lock); + return gpg_error_from_errno (saved_errno); + } + + (*lastp)->protocol = proto_list[proto]; + (*lastp)->file_name = file_name; + (*lastp)->home_dir = NULL; + (*lastp)->version = engine_get_version (proto_list[proto], NULL); + (*lastp)->req_version = engine_get_req_version (proto_list[proto]); + (*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 (info->home_dir) + { + home_dir = strdup (info->home_dir); + if (!home_dir) + err = gpg_error_from_errno (errno); + } + else + home_dir = NULL; + + if (info->version) + { + version = strdup (info->version); + if (!version) + err = gpg_error_from_errno (errno); + } + else + version = NULL; + + *lastp = malloc (sizeof (*engine_info)); + if (!*lastp || !file_name || err) + { + int saved_errno = errno; + + _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 gpg_error_from_errno (saved_errno); + } + + (*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; + + /* 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 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_errno (errno); + + if (home_dir) + { + new_home_dir = strdup (home_dir); + if (!new_home_dir) + { + free (new_file_name); + return gpg_error_from_errno (errno); + } + } + else + new_home_dir = NULL; + + /* 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 = engine_get_version (proto, new_file_name); + + 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 gpg_error (GPG_ERR_INV_ENGINE); + + engine = calloc (1, sizeof *engine); + if (!engine) + return gpg_error_from_errno (errno); + + 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); + 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); +} + + +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, + gpgme_data_t linked_data) +{ + 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, linked_data); +} + +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_op_decrypt (engine_t engine, gpgme_data_t ciph, + gpgme_data_t plain) +{ + 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, ciph, plain); +} + +gpgme_error_t +_gpgme_engine_op_delete (engine_t engine, gpgme_key_t key, + int allow_secret) +{ + 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, allow_secret); +} + + +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[], + 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, flags, plain, ciph, + use_armor); +} + + +gpgme_error_t +_gpgme_engine_op_encrypt_sign (engine_t engine, gpgme_key_t recp[], + 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, flags, + plain, ciph, use_armor, ctx); +} + + +gpgme_error_t +_gpgme_engine_op_export (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) + return gpg_error (GPG_ERR_NOT_IMPLEMENTED); + + return (*engine->ops->export) (engine->engine, pattern, reserved, + 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, gpgme_data_t help_data, + int use_armor, 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, help_data, use_armor, + pubkey, seckey); +} + + +gpgme_error_t +_gpgme_engine_op_import (engine_t engine, gpgme_data_t keydata) +{ + 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); +} + + +gpgme_error_t +_gpgme_engine_op_keylist (engine_t engine, const char *pattern, + int secret_only, gpgme_keylist_mode_t mode) +{ + 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); +} + + +gpgme_error_t +_gpgme_engine_op_keylist_ext (engine_t engine, const char *pattern[], + int secret_only, int reserved, + gpgme_keylist_mode_t mode) +{ + 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); +} + + +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) +{ + 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); +} + + +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); +} + + +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); +} |