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-rw-r--r--src/lib/libcrypto/x509v3/v3_conf.c576
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diff --git a/src/lib/libcrypto/x509v3/v3_conf.c b/src/lib/libcrypto/x509v3/v3_conf.c
deleted file mode 100644
index 20e156ce87..0000000000
--- a/src/lib/libcrypto/x509v3/v3_conf.c
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1/* $OpenBSD: v3_conf.c,v 1.19 2015/12/14 03:39:14 beck Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999-2002 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58/* extension creation utilities */
59
60#include <ctype.h>
61#include <stdio.h>
62#include <string.h>
63
64#include <openssl/conf.h>
65#include <openssl/err.h>
66#include <openssl/x509.h>
67#include <openssl/x509v3.h>
68
69static int v3_check_critical(char **value);
70static int v3_check_generic(char **value);
71static X509_EXTENSION *do_ext_nconf(CONF *conf, X509V3_CTX *ctx, int ext_nid,
72 int crit, char *value);
73static X509_EXTENSION *v3_generic_extension(const char *ext, char *value,
74 int crit, int type, X509V3_CTX *ctx);
75static char *conf_lhash_get_string(void *db, char *section, char *value);
76static STACK_OF(CONF_VALUE) *conf_lhash_get_section(void *db, char *section);
77static X509_EXTENSION *do_ext_i2d(const X509V3_EXT_METHOD *method, int ext_nid,
78 int crit, void *ext_struc);
79static unsigned char *generic_asn1(char *value, X509V3_CTX *ctx, long *ext_len);
80
81/* CONF *conf: Config file */
82/* char *name: Name */
83/* char *value: Value */
84X509_EXTENSION *
85X509V3_EXT_nconf(CONF *conf, X509V3_CTX *ctx, char *name, char *value)
86{
87 int crit;
88 int ext_type;
89 X509_EXTENSION *ret;
90
91 crit = v3_check_critical(&value);
92 if ((ext_type = v3_check_generic(&value)))
93 return v3_generic_extension(name, value, crit, ext_type, ctx);
94 ret = do_ext_nconf(conf, ctx, OBJ_sn2nid(name), crit, value);
95 if (!ret) {
96 X509V3err(X509V3_F_X509V3_EXT_NCONF,
97 X509V3_R_ERROR_IN_EXTENSION);
98 ERR_asprintf_error_data("name=%s, value=%s", name, value);
99 }
100 return ret;
101}
102
103/* CONF *conf: Config file */
104/* char *value: Value */
105X509_EXTENSION *
106X509V3_EXT_nconf_nid(CONF *conf, X509V3_CTX *ctx, int ext_nid, char *value)
107{
108 int crit;
109 int ext_type;
110
111 crit = v3_check_critical(&value);
112 if ((ext_type = v3_check_generic(&value)))
113 return v3_generic_extension(OBJ_nid2sn(ext_nid),
114 value, crit, ext_type, ctx);
115 return do_ext_nconf(conf, ctx, ext_nid, crit, value);
116}
117
118/* CONF *conf: Config file */
119/* char *value: Value */
120static X509_EXTENSION *
121do_ext_nconf(CONF *conf, X509V3_CTX *ctx, int ext_nid, int crit, char *value)
122{
123 const X509V3_EXT_METHOD *method;
124 X509_EXTENSION *ext;
125 void *ext_struc;
126
127 if (ext_nid == NID_undef) {
128 X509V3err(X509V3_F_DO_EXT_NCONF,
129 X509V3_R_UNKNOWN_EXTENSION_NAME);
130 return NULL;
131 }
132 if (!(method = X509V3_EXT_get_nid(ext_nid))) {
133 X509V3err(X509V3_F_DO_EXT_NCONF, X509V3_R_UNKNOWN_EXTENSION);
134 return NULL;
135 }
136 /* Now get internal extension representation based on type */
137 if (method->v2i) {
138 STACK_OF(CONF_VALUE) *nval;
139
140 if (*value == '@')
141 nval = NCONF_get_section(conf, value + 1);
142 else
143 nval = X509V3_parse_list(value);
144 if (sk_CONF_VALUE_num(nval) <= 0) {
145 X509V3err(X509V3_F_DO_EXT_NCONF,
146 X509V3_R_INVALID_EXTENSION_STRING);
147 ERR_asprintf_error_data("name=%s,section=%s",
148 OBJ_nid2sn(ext_nid), value);
149 if (*value != '@')
150 sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
151 return NULL;
152 }
153 ext_struc = method->v2i(method, ctx, nval);
154 if (*value != '@')
155 sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
156 } else if (method->s2i) {
157 ext_struc = method->s2i(method, ctx, value);
158 } else if (method->r2i) {
159 if (!ctx->db || !ctx->db_meth) {
160 X509V3err(X509V3_F_DO_EXT_NCONF,
161 X509V3_R_NO_CONFIG_DATABASE);
162 return NULL;
163 }
164 ext_struc = method->r2i(method, ctx, value);
165 } else {
166 X509V3err(X509V3_F_DO_EXT_NCONF,
167 X509V3_R_EXTENSION_SETTING_NOT_SUPPORTED);
168 ERR_asprintf_error_data("name=%s", OBJ_nid2sn(ext_nid));
169 return NULL;
170 }
171 if (ext_struc == NULL)
172 return NULL;
173
174 ext = do_ext_i2d(method, ext_nid, crit, ext_struc);
175 if (method->it)
176 ASN1_item_free(ext_struc, ASN1_ITEM_ptr(method->it));
177 else
178 method->ext_free(ext_struc);
179 return ext;
180}
181
182static X509_EXTENSION *
183do_ext_i2d(const X509V3_EXT_METHOD *method, int ext_nid, int crit,
184 void *ext_struc)
185{
186 unsigned char *ext_der;
187 int ext_len;
188 ASN1_OCTET_STRING *ext_oct = NULL;
189 X509_EXTENSION *ext;
190
191 /* Convert internal representation to DER */
192 if (method->it) {
193 ext_der = NULL;
194 ext_len = ASN1_item_i2d(ext_struc, &ext_der,
195 ASN1_ITEM_ptr(method->it));
196 if (ext_len < 0)
197 goto merr;
198 } else {
199 unsigned char *p;
200 ext_len = method->i2d(ext_struc, NULL);
201 if (!(ext_der = malloc(ext_len)))
202 goto merr;
203 p = ext_der;
204 method->i2d(ext_struc, &p);
205 }
206 if (!(ext_oct = ASN1_OCTET_STRING_new()))
207 goto merr;
208 ext_oct->data = ext_der;
209 ext_oct->length = ext_len;
210
211 ext = X509_EXTENSION_create_by_NID(NULL, ext_nid, crit, ext_oct);
212 if (!ext)
213 goto merr;
214 ASN1_OCTET_STRING_free(ext_oct);
215
216 return ext;
217
218merr:
219 ASN1_OCTET_STRING_free(ext_oct);
220 X509V3err(X509V3_F_DO_EXT_I2D, ERR_R_MALLOC_FAILURE);
221 return NULL;
222
223}
224
225/* Given an internal structure, nid and critical flag create an extension */
226
227X509_EXTENSION *
228X509V3_EXT_i2d(int ext_nid, int crit, void *ext_struc)
229{
230 const X509V3_EXT_METHOD *method;
231
232 if (!(method = X509V3_EXT_get_nid(ext_nid))) {
233 X509V3err(X509V3_F_X509V3_EXT_I2D, X509V3_R_UNKNOWN_EXTENSION);
234 return NULL;
235 }
236 return do_ext_i2d(method, ext_nid, crit, ext_struc);
237}
238
239/* Check the extension string for critical flag */
240static int
241v3_check_critical(char **value)
242{
243 char *p = *value;
244
245 if ((strlen(p) < 9) || strncmp(p, "critical,", 9))
246 return 0;
247 p += 9;
248 while (isspace((unsigned char)*p)) p++;
249 *value = p;
250 return 1;
251}
252
253/* Check extension string for generic extension and return the type */
254static int
255v3_check_generic(char **value)
256{
257 int gen_type = 0;
258 char *p = *value;
259
260 if ((strlen(p) >= 4) && !strncmp(p, "DER:", 4)) {
261 p += 4;
262 gen_type = 1;
263 } else if ((strlen(p) >= 5) && !strncmp(p, "ASN1:", 5)) {
264 p += 5;
265 gen_type = 2;
266 } else
267 return 0;
268
269 while (isspace((unsigned char)*p))
270 p++;
271 *value = p;
272 return gen_type;
273}
274
275/* Create a generic extension: for now just handle DER type */
276static X509_EXTENSION *
277v3_generic_extension(const char *ext, char *value, int crit, int gen_type,
278 X509V3_CTX *ctx)
279{
280 unsigned char *ext_der = NULL;
281 long ext_len = 0;
282 ASN1_OBJECT *obj = NULL;
283 ASN1_OCTET_STRING *oct = NULL;
284 X509_EXTENSION *extension = NULL;
285
286 if (!(obj = OBJ_txt2obj(ext, 0))) {
287 X509V3err(X509V3_F_V3_GENERIC_EXTENSION,
288 X509V3_R_EXTENSION_NAME_ERROR);
289 ERR_asprintf_error_data("name=%s", ext);
290 goto err;
291 }
292
293 if (gen_type == 1)
294 ext_der = string_to_hex(value, &ext_len);
295 else if (gen_type == 2)
296 ext_der = generic_asn1(value, ctx, &ext_len);
297 else {
298 ERR_asprintf_error_data("Unexpected generic extension type %d", gen_type);
299 goto err;
300 }
301
302 if (ext_der == NULL) {
303 X509V3err(X509V3_F_V3_GENERIC_EXTENSION,
304 X509V3_R_EXTENSION_VALUE_ERROR);
305 ERR_asprintf_error_data("value=%s", value);
306 goto err;
307 }
308
309 if (!(oct = ASN1_OCTET_STRING_new())) {
310 X509V3err(X509V3_F_V3_GENERIC_EXTENSION, ERR_R_MALLOC_FAILURE);
311 goto err;
312 }
313
314 oct->data = ext_der;
315 oct->length = ext_len;
316 ext_der = NULL;
317
318 extension = X509_EXTENSION_create_by_OBJ(NULL, obj, crit, oct);
319
320err:
321 ASN1_OBJECT_free(obj);
322 ASN1_OCTET_STRING_free(oct);
323 free(ext_der);
324 return extension;
325}
326
327static unsigned char *
328generic_asn1(char *value, X509V3_CTX *ctx, long *ext_len)
329{
330 ASN1_TYPE *typ;
331 unsigned char *ext_der = NULL;
332
333 typ = ASN1_generate_v3(value, ctx);
334 if (typ == NULL)
335 return NULL;
336 *ext_len = i2d_ASN1_TYPE(typ, &ext_der);
337 ASN1_TYPE_free(typ);
338 return ext_der;
339}
340
341/* This is the main function: add a bunch of extensions based on a config file
342 * section to an extension STACK.
343 */
344
345int
346X509V3_EXT_add_nconf_sk(CONF *conf, X509V3_CTX *ctx, char *section,
347 STACK_OF(X509_EXTENSION) **sk)
348{
349 X509_EXTENSION *ext;
350 STACK_OF(CONF_VALUE) *nval;
351 CONF_VALUE *val;
352 int i;
353
354 if (!(nval = NCONF_get_section(conf, section)))
355 return 0;
356 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
357 val = sk_CONF_VALUE_value(nval, i);
358 if (!(ext = X509V3_EXT_nconf(conf, ctx, val->name, val->value)))
359 return 0;
360 if (sk)
361 X509v3_add_ext(sk, ext, -1);
362 X509_EXTENSION_free(ext);
363 }
364 return 1;
365}
366
367/* Convenience functions to add extensions to a certificate, CRL and request */
368
369int
370X509V3_EXT_add_nconf(CONF *conf, X509V3_CTX *ctx, char *section, X509 *cert)
371{
372 STACK_OF(X509_EXTENSION) **sk = NULL;
373
374 if (cert)
375 sk = &cert->cert_info->extensions;
376 return X509V3_EXT_add_nconf_sk(conf, ctx, section, sk);
377}
378
379/* Same as above but for a CRL */
380
381int
382X509V3_EXT_CRL_add_nconf(CONF *conf, X509V3_CTX *ctx, char *section,
383 X509_CRL *crl)
384{
385 STACK_OF(X509_EXTENSION) **sk = NULL;
386
387 if (crl)
388 sk = &crl->crl->extensions;
389 return X509V3_EXT_add_nconf_sk(conf, ctx, section, sk);
390}
391
392/* Add extensions to certificate request */
393
394int
395X509V3_EXT_REQ_add_nconf(CONF *conf, X509V3_CTX *ctx, char *section,
396 X509_REQ *req)
397{
398 STACK_OF(X509_EXTENSION) *extlist = NULL, **sk = NULL;
399 int i;
400
401 if (req)
402 sk = &extlist;
403 i = X509V3_EXT_add_nconf_sk(conf, ctx, section, sk);
404 if (!i || !sk)
405 return i;
406 i = X509_REQ_add_extensions(req, extlist);
407 sk_X509_EXTENSION_pop_free(extlist, X509_EXTENSION_free);
408 return i;
409}
410
411/* Config database functions */
412
413char *
414X509V3_get_string(X509V3_CTX *ctx, char *name, char *section)
415{
416 if (!ctx->db || !ctx->db_meth || !ctx->db_meth->get_string) {
417 X509V3err(X509V3_F_X509V3_GET_STRING,
418 X509V3_R_OPERATION_NOT_DEFINED);
419 return NULL;
420 }
421 if (ctx->db_meth->get_string)
422 return ctx->db_meth->get_string(ctx->db, name, section);
423 return NULL;
424}
425
426STACK_OF(CONF_VALUE) *
427X509V3_get_section(X509V3_CTX *ctx, char *section)
428{
429 if (!ctx->db || !ctx->db_meth || !ctx->db_meth->get_section) {
430 X509V3err(X509V3_F_X509V3_GET_SECTION,
431 X509V3_R_OPERATION_NOT_DEFINED);
432 return NULL;
433 }
434 if (ctx->db_meth->get_section)
435 return ctx->db_meth->get_section(ctx->db, section);
436 return NULL;
437}
438
439void
440X509V3_string_free(X509V3_CTX *ctx, char *str)
441{
442 if (!str)
443 return;
444 if (ctx->db_meth->free_string)
445 ctx->db_meth->free_string(ctx->db, str);
446}
447
448void
449X509V3_section_free(X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *section)
450{
451 if (!section)
452 return;
453 if (ctx->db_meth->free_section)
454 ctx->db_meth->free_section(ctx->db, section);
455}
456
457static char *
458nconf_get_string(void *db, char *section, char *value)
459{
460 return NCONF_get_string(db, section, value);
461}
462
463static
464STACK_OF(CONF_VALUE) *nconf_get_section(void *db, char *section)
465{
466 return NCONF_get_section(db, section);
467}
468
469static X509V3_CONF_METHOD nconf_method = {
470 nconf_get_string,
471 nconf_get_section,
472 NULL,
473 NULL
474};
475
476void
477X509V3_set_nconf(X509V3_CTX *ctx, CONF *conf)
478{
479 ctx->db_meth = &nconf_method;
480 ctx->db = conf;
481}
482
483void
484X509V3_set_ctx(X509V3_CTX *ctx, X509 *issuer, X509 *subj, X509_REQ *req,
485 X509_CRL *crl, int flags)
486{
487 ctx->issuer_cert = issuer;
488 ctx->subject_cert = subj;
489 ctx->crl = crl;
490 ctx->subject_req = req;
491 ctx->flags = flags;
492}
493
494/* Old conf compatibility functions */
495
496X509_EXTENSION *
497X509V3_EXT_conf(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx, char *name,
498 char *value)
499{
500 CONF ctmp;
501
502 CONF_set_nconf(&ctmp, conf);
503 return X509V3_EXT_nconf(&ctmp, ctx, name, value);
504}
505
506/* LHASH *conf: Config file */
507/* char *value: Value */
508X509_EXTENSION *
509X509V3_EXT_conf_nid(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx, int ext_nid,
510 char *value)
511{
512 CONF ctmp;
513
514 CONF_set_nconf(&ctmp, conf);
515 return X509V3_EXT_nconf_nid(&ctmp, ctx, ext_nid, value);
516}
517
518static char *
519conf_lhash_get_string(void *db, char *section, char *value)
520{
521 return CONF_get_string(db, section, value);
522}
523
524static STACK_OF(CONF_VALUE) *
525conf_lhash_get_section(void *db, char *section)
526{
527 return CONF_get_section(db, section);
528}
529
530static X509V3_CONF_METHOD conf_lhash_method = {
531 conf_lhash_get_string,
532 conf_lhash_get_section,
533 NULL,
534 NULL
535};
536
537void
538X509V3_set_conf_lhash(X509V3_CTX *ctx, LHASH_OF(CONF_VALUE) *lhash)
539{
540 ctx->db_meth = &conf_lhash_method;
541 ctx->db = lhash;
542}
543
544int
545X509V3_EXT_add_conf(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx, char *section,
546 X509 *cert)
547{
548 CONF ctmp;
549
550 CONF_set_nconf(&ctmp, conf);
551 return X509V3_EXT_add_nconf(&ctmp, ctx, section, cert);
552}
553
554/* Same as above but for a CRL */
555
556int
557X509V3_EXT_CRL_add_conf(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx,
558 char *section, X509_CRL *crl)
559{
560 CONF ctmp;
561
562 CONF_set_nconf(&ctmp, conf);
563 return X509V3_EXT_CRL_add_nconf(&ctmp, ctx, section, crl);
564}
565
566/* Add extensions to certificate request */
567
568int
569X509V3_EXT_REQ_add_conf(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx,
570 char *section, X509_REQ *req)
571{
572 CONF ctmp;
573
574 CONF_set_nconf(&ctmp, conf);
575 return X509V3_EXT_REQ_add_nconf(&ctmp, ctx, section, req);
576}
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