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/*
* Copyright (C) 2004 g10 Code GmbH
*
* This program 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.
*
* This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef CRYPTOGRAPHY_H
#define CRYPTOGRAPHY_H
#include "mutt.h"
#include "mutt_crypt.h"
#define CRYPTO_SUPPORT(identifier) (WithCrypto & APPLICATION_ ## identifier)
/*
Type defintions for crypto module functions.
*/
typedef void (*crypt_func_void_passphrase_t) (void);
typedef int (*crypt_func_valid_passphrase_t) (void);
typedef int (*crypt_func_decrypt_mime_t) (FILE *a, FILE **b,
BODY *c, BODY **d);
typedef int (*crypt_func_application_handler_t) (BODY *m, STATE *s);
typedef int (*crypt_func_encrypted_handler_t) (BODY *m, STATE *s);
typedef void (*crypt_func_pgp_invoke_getkeys_t) (ADDRESS *addr);
typedef int (*crypt_func_pgp_check_traditional_t) (FILE *fp, BODY *b,
int tagged_only);
typedef BODY *(*crypt_func_pgp_traditional_encryptsign_t) (BODY *a, int flags,
char *keylist);
typedef BODY *(*crypt_func_pgp_make_key_attachment_t) (char *tempf);
typedef char *(*crypt_func_findkeys_t) (ADDRESS *to,
ADDRESS *cc, ADDRESS *bcc);
typedef BODY *(*crypt_func_sign_message_t) (BODY *a);
typedef BODY *(*crypt_func_pgp_encrypt_message_t) (BODY *a, char *keylist,
int sign);
typedef void (*crypt_func_pgp_invoke_import_t) (const char *fname);
typedef int (*crypt_func_verify_one_t) (BODY *sigbdy, STATE *s,
const char *tempf);
typedef void (*crypt_func_pgp_extract_keys_from_attachment_list_t)
(FILE *fp, int tag, BODY *top);
typedef int (*crypt_func_send_menu_t) (HEADER *msg, int *redraw);
/* (SMIME) */
typedef void (*crypt_func_smime_getkeys_t) (ENVELOPE *env);
typedef int (*crypt_func_smime_verify_sender_t) (HEADER *h);
typedef BODY *(*crypt_func_smime_build_smime_entity_t) (BODY *a,
char *certlist);
typedef void (*crypt_func_smime_invoke_import_t) (char *infile, char *mailbox);
typedef void (*crypt_func_init_t) (void);
typedef void (*crypt_func_set_sender_t) (const char *sender);
/*
A structure to keep all crypto module fucntions together.
*/
typedef struct crypt_module_functions
{
/* Common/General functions. */
crypt_func_init_t init;
crypt_func_void_passphrase_t void_passphrase;
crypt_func_valid_passphrase_t valid_passphrase;
crypt_func_decrypt_mime_t decrypt_mime;
crypt_func_application_handler_t application_handler;
crypt_func_encrypted_handler_t encrypted_handler;
crypt_func_findkeys_t findkeys;
crypt_func_sign_message_t sign_message;
crypt_func_verify_one_t verify_one;
crypt_func_send_menu_t send_menu;
crypt_func_set_sender_t set_sender;
/* PGP specific functions. */
crypt_func_pgp_encrypt_message_t pgp_encrypt_message;
crypt_func_pgp_make_key_attachment_t pgp_make_key_attachment;
crypt_func_pgp_check_traditional_t pgp_check_traditional;
crypt_func_pgp_traditional_encryptsign_t pgp_traditional_encryptsign;
crypt_func_pgp_invoke_getkeys_t pgp_invoke_getkeys;
crypt_func_pgp_invoke_import_t pgp_invoke_import;
crypt_func_pgp_extract_keys_from_attachment_list_t
pgp_extract_keys_from_attachment_list;
/* S/MIME specific functions. */
crypt_func_smime_getkeys_t smime_getkeys;
crypt_func_smime_verify_sender_t smime_verify_sender;
crypt_func_smime_build_smime_entity_t smime_build_smime_entity;
crypt_func_smime_invoke_import_t smime_invoke_import;
} crypt_module_functions_t;
/*
A structure to decribe a crypto module.
*/
typedef struct crypt_module_specs
{
int identifier; /* Identifying bit. */
crypt_module_functions_t functions;
} *crypt_module_specs_t;
/*
High Level crypto module interface.
*/
void crypto_module_register (crypt_module_specs_t specs);
crypt_module_specs_t crypto_module_lookup (int identifier);
/* If the crypto module identifier by IDENTIFIER has been registered,
call its function FUNC. Do nothing else. This may be used as an
expression. */
#define CRYPT_MOD_CALL_CHECK(identifier, func) \
(crypto_module_lookup (APPLICATION_ ## identifier) \
&& (crypto_module_lookup (APPLICATION_ ## identifier))->functions.func)
/* Call the function FUNC in the crypto module identified by
IDENTIFIER. This may be used as an expression. */
#define CRYPT_MOD_CALL(identifier, func) \
*(crypto_module_lookup (APPLICATION_ ## identifier))->functions.func
#endif
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