1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
|
/* SPDX-License-Identifier: GPL-3.0-or-later WITH cryptsetup-OpenSSL-exception */
/*
This file is part of sscg.
sscg 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.
sscg 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 sscg. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
Copyright 2017-2025 by Stephen Gallagher <sgallagh@redhat.com>
*/
/* This is a master header file that should be included by all
sscg source files. */
#ifndef _SSCG_H
#define _SSCG_H
#include <errno.h>
#include <openssl/bn.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/ui.h>
#include <stdbool.h>
#include <talloc.h>
#include <stdint.h>
#ifndef _
#ifdef HAVE_GETTEXT
#define _(STRING) gettext (STRING)
#else
#define _(STRING) STRING
#endif /* HAVE_GETTEXT */
#endif /* _ */
#ifndef EOK
#define EOK 0
#endif
#ifndef discard_const
#define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
#endif
#ifndef talloc_zfree
#define talloc_zfree(ptr) \
do \
{ \
talloc_free (discard_const (ptr)); \
ptr = NULL; \
} \
while (0)
#endif
#define CHECK_MEM(ptr) \
do \
{ \
if (!ptr) \
{ \
ret = ENOMEM; \
goto done; \
} \
} \
while (0)
#define CHECK_OK(_ret) \
do \
{ \
if (_ret != EOK) \
{ \
goto done; \
} \
} \
while (0)
/* The function changed in 1.1, but the library and reason names did not */
#ifndef UI_F_UI_SET_RESULT_EX
#define UI_F_UI_SET_RESULT_EX UI_F_UI_SET_RESULT
#endif
#define CHECK_SSL(_sslret, _fn) \
do \
{ \
if (_sslret != 1) \
{ \
/* Get information about error from OpenSSL */ \
unsigned long _ssl_error = ERR_get_error (); \
if ((ERR_GET_LIB (_ssl_error) == ERR_LIB_UI) && \
((ERR_GET_REASON (_ssl_error) == UI_R_RESULT_TOO_LARGE) || \
(ERR_GET_REASON (_ssl_error) == UI_R_RESULT_TOO_SMALL))) \
{ \
fprintf ( \
stderr, \
"Passphrases must be between %d and %d characters. \n", \
SSCG_MIN_KEY_PASS_LEN, \
SSCG_MAX_KEY_PASS_LEN); \
ret = EINVAL; \
goto done; \
} \
fprintf (stderr, \
"Error occurred in " #_fn ": [%s].\n", \
ERR_error_string (_ssl_error, NULL)); \
ret = EIO; \
goto done; \
} \
} \
while (0)
#define CHECK_BIO(ptr, file) \
do \
{ \
if (!ptr) \
{ \
ret = errno; \
fprintf (stderr, \
"Could not write to %s. Check directory permissions.\n", \
file); \
goto done; \
} \
} \
while (0)
#define SSCG_CERT_DEFAULT_MODE 0644
#define SSCG_CERT_DEFAULT_MODE_HELP _ ("0644")
#define SSCG_KEY_DEFAULT_MODE 0600
#define SSCG_KEY_DEFAULT_MODE_HELP _ ("0600")
enum sscg_verbosity
{
SSCG_QUIET = -1,
SSCG_DEFAULT,
SSCG_VERBOSE,
SSCG_DEBUG
};
extern int verbosity;
const char *sscg_get_verbosity_name (enum sscg_verbosity);
#define SSCG_LOG(_level, _format, ...) \
do \
{ \
if (verbosity >= _level) \
{ \
printf ("%s", sscg_get_verbosity_name (_level)); \
printf (_format, ##__VA_ARGS__); \
} \
} \
while (0)
#define SSCG_ERROR(_format, ...) \
do \
{ \
if (verbosity > SSCG_QUIET) \
{ \
fprintf (stderr, "ERROR: "); \
fprintf (stderr, _format, ##__VA_ARGS__); \
} \
} \
while (0)
enum sscg_file_type
{
SSCG_FILE_TYPE_UNKNOWN = -1,
SSCG_FILE_TYPE_CA,
SSCG_FILE_TYPE_CA_KEY,
SSCG_FILE_TYPE_SVC,
SSCG_FILE_TYPE_SVC_KEY,
SSCG_FILE_TYPE_CLIENT,
SSCG_FILE_TYPE_CLIENT_KEY,
SSCG_FILE_TYPE_CRL,
SSCG_FILE_TYPE_DHPARAMS,
SSCG_NUM_FILE_TYPES
};
#define SSCG_FILE_TYPE_KEYS \
((1 << SSCG_FILE_TYPE_CA_KEY) | (1 << SSCG_FILE_TYPE_SVC_KEY) | \
(1 << SSCG_FILE_TYPE_CLIENT_KEY))
#define SSCG_FILE_TYPE_SVC_TYPES \
((1 << SSCG_FILE_TYPE_SVC) | (1 << SSCG_FILE_TYPE_SVC_KEY))
#define SSCG_FILE_TYPE_CLIENT_TYPES \
((1 << SSCG_FILE_TYPE_CLIENT) | (1 << SSCG_FILE_TYPE_CLIENT_KEY))
#define SSCG_FILE_TYPE_CA_TYPES \
((1 << SSCG_FILE_TYPE_CA) | (1 << SSCG_FILE_TYPE_CA_KEY))
const char *
sscg_get_file_type_name (enum sscg_file_type _type);
#define GET_BIO(_type) sscg_io_utils_get_bio_by_type (options->streams, _type)
#define GET_PATH(_type) \
sscg_io_utils_get_path_by_type (options->streams, _type)
#define ANNOUNCE_WRITE(_type) \
SSCG_LOG (SSCG_DEFAULT, \
"Wrote %s to %s\n", \
sscg_get_file_type_name (_type), \
GET_PATH (_type));
struct sscg_options
{
/* How noisy to be when printing information */
enum sscg_verbosity verbosity;
/* Whether to print the version and exit */
bool print_version;
/* How long should certificates be valid (in days) */
int lifetime;
/* Subject information */
const char *country;
const char *state;
const char *locality;
const char *org;
const char *org_unit;
const char *email;
const char *hostname;
char **subject_alt_names;
/* Encryption requirements */
int key_strength;
int minimum_key_strength;
char *hash_alg;
char *cipher_alg;
const EVP_CIPHER *cipher;
const EVP_MD *hash_fn;
int ca_key_pass_prompt;
int cert_key_pass_prompt;
int client_key_pass_prompt;
int skip_dhparams;
/* Output Files */
struct sscg_stream **streams;
char *ca_file;
char *ca_key_file;
int ca_mode;
int ca_key_mode;
char *ca_key_password;
char *ca_key_passfile;
char *cert_file;
char *cert_key_file;
int cert_mode;
int cert_key_mode;
char *cert_key_password;
char *cert_key_passfile;
char *client_file;
char *client_key_file;
int client_mode;
int client_key_mode;
char *client_key_password;
char *client_key_passfile;
char *crl_file;
int crl_mode;
char *dhparams_file;
int dhparams_mode;
/* Diffie-Hellman Parameters */
char *dhparams_group;
int dhparams_prime_len;
int dhparams_generator;
/* Overwrite the output files */
bool overwrite;
};
enum sscg_cert_type
{
SSCG_CERT_TYPE_UNKNOWN = -1,
SSCG_CERT_TYPE_SERVER,
SSCG_CERT_TYPE_CLIENT,
SSCG_NUM_CERT_TYPES
};
#define SSCG_MIN_KEY_PASS_LEN 4
#define SSCG_MAX_KEY_PASS_LEN 1023
/* RFC 1035, section 2.3.4 (Size Limits) */
#define MAX_HOST_LEN 63
#define MAX_FQDN_LEN 255
int
sscg_handle_arguments (TALLOC_CTX *mem_ctx,
int argc,
const char **argv,
struct sscg_options **config);
#endif /* _SSCG_H */
|
