jcs.org
mutt stable branch with some hacks
1/*
2 * Copyright (C) 2004 g10 Code GmbH
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19#ifndef CRYPTOGRAPHY_H
20#define CRYPTOGRAPHY_H
21
22#include "mutt.h"
23#include "mutt_crypt.h"
24
25#define CRYPTO_SUPPORT(identifier) (WithCrypto & APPLICATION_ ## identifier)
26
27
28/*
29 Type definitions for crypto module functions.
30 */
31typedef void (*crypt_func_void_passphrase_t) (void);
32typedef int (*crypt_func_valid_passphrase_t) (void);
33
34typedef int (*crypt_func_decrypt_mime_t) (FILE *a, FILE **b,
35 BODY *c, BODY **d);
36
37typedef int (*crypt_func_application_handler_t) (BODY *m, STATE *s);
38typedef int (*crypt_func_encrypted_handler_t) (BODY *m, STATE *s);
39
40typedef void (*crypt_func_pgp_invoke_getkeys_t) (ADDRESS *addr);
41typedef int (*crypt_func_pgp_check_traditional_t) (FILE *fp, BODY *b,
42 int tagged_only);
43typedef BODY *(*crypt_func_pgp_traditional_encryptsign_t) (BODY *a, int flags,
44 char *keylist);
45typedef BODY *(*crypt_func_pgp_make_key_attachment_t) (char *tempf);
46typedef char *(*crypt_func_findkeys_t) (ADDRESS *adrlist, int oppenc_mode);
47typedef BODY *(*crypt_func_sign_message_t) (BODY *a);
48typedef BODY *(*crypt_func_pgp_encrypt_message_t) (BODY *a, char *keylist,
49 int sign);
50typedef void (*crypt_func_pgp_invoke_import_t) (const char *fname);
51typedef int (*crypt_func_verify_one_t) (BODY *sigbdy, STATE *s,
52 const char *tempf);
53typedef void (*crypt_func_pgp_extract_keys_from_attachment_list_t)
54 (FILE *fp, int tag, BODY *top);
55
56typedef int (*crypt_func_send_menu_t) (HEADER *msg, int *redraw);
57
58 /* (SMIME) */
59typedef void (*crypt_func_smime_getkeys_t) (ENVELOPE *env);
60typedef int (*crypt_func_smime_verify_sender_t) (HEADER *h);
61
62typedef BODY *(*crypt_func_smime_build_smime_entity_t) (BODY *a,
63 char *certlist);
64
65typedef void (*crypt_func_smime_invoke_import_t) (char *infile, char *mailbox);
66
67typedef void (*crypt_func_init_t) (void);
68
69typedef void (*crypt_func_set_sender_t) (const char *sender);
70
71/*
72 A structure to keep all crypto module fucntions together.
73 */
74typedef struct crypt_module_functions
75{
76 /* Common/General functions. */
77 crypt_func_init_t init;
78 crypt_func_void_passphrase_t void_passphrase;
79 crypt_func_valid_passphrase_t valid_passphrase;
80 crypt_func_decrypt_mime_t decrypt_mime;
81 crypt_func_application_handler_t application_handler;
82 crypt_func_encrypted_handler_t encrypted_handler;
83 crypt_func_findkeys_t findkeys;
84 crypt_func_sign_message_t sign_message;
85 crypt_func_verify_one_t verify_one;
86 crypt_func_send_menu_t send_menu;
87 crypt_func_set_sender_t set_sender;
88
89 /* PGP specific functions. */
90 crypt_func_pgp_encrypt_message_t pgp_encrypt_message;
91 crypt_func_pgp_make_key_attachment_t pgp_make_key_attachment;
92 crypt_func_pgp_check_traditional_t pgp_check_traditional;
93 crypt_func_pgp_traditional_encryptsign_t pgp_traditional_encryptsign;
94 crypt_func_pgp_invoke_getkeys_t pgp_invoke_getkeys;
95 crypt_func_pgp_invoke_import_t pgp_invoke_import;
96 crypt_func_pgp_extract_keys_from_attachment_list_t
97 pgp_extract_keys_from_attachment_list;
98
99 /* S/MIME specific functions. */
100
101 crypt_func_smime_getkeys_t smime_getkeys;
102 crypt_func_smime_verify_sender_t smime_verify_sender;
103 crypt_func_smime_build_smime_entity_t smime_build_smime_entity;
104 crypt_func_smime_invoke_import_t smime_invoke_import;
105} crypt_module_functions_t;
106
107
108/*
109 A structure to describe a crypto module.
110 */
111typedef struct crypt_module_specs
112{
113 int identifier; /* Identifying bit. */
114 crypt_module_functions_t functions;
115} *crypt_module_specs_t;
116
117
118
119/*
120 High Level crypto module interface.
121 */
122
123void crypto_module_register (crypt_module_specs_t specs);
124crypt_module_specs_t crypto_module_lookup (int identifier);
125
126/* If the crypto module identifier by IDENTIFIER has been registered,
127 call its function FUNC. Do nothing else. This may be used as an
128 expression. */
129#define CRYPT_MOD_CALL_CHECK(identifier, func) \
130 (crypto_module_lookup (APPLICATION_ ## identifier) \
131 && (crypto_module_lookup (APPLICATION_ ## identifier))->functions.func)
132
133/* Call the function FUNC in the crypto module identified by
134 IDENTIFIER. This may be used as an expression. */
135#define CRYPT_MOD_CALL(identifier, func) \
136 *(crypto_module_lookup (APPLICATION_ ## identifier))->functions.func
137
138#endif