1 /* v3_cpols.c */
2 /*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 1999.
5 */
6 /* ====================================================================
7 * Copyright (c) 1999-2004 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60 #include <stdio.h>
61 #include <string.h>
62
63 #include <openssl/asn1.h>
64 #include <openssl/asn1t.h>
65 #include <openssl/conf.h>
66 #include <openssl/err.h>
67 #include <openssl/mem.h>
68 #include <openssl/obj.h>
69 #include <openssl/stack.h>
70 #include <openssl/x509v3.h>
71
72 #include "internal.h"
73
74 /* Certificate policies extension support: this one is a bit complex... */
75
76 static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
77 BIO *out, int indent);
78 static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
79 X509V3_CTX *ctx, char *value);
80 static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
81 int indent);
82 static void print_notice(BIO *out, USERNOTICE *notice, int indent);
83 static POLICYINFO *policy_section(X509V3_CTX *ctx,
84 STACK_OF(CONF_VALUE) *polstrs, int ia5org);
85 static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
86 STACK_OF(CONF_VALUE) *unot, int ia5org);
87 static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos);
88
89 const X509V3_EXT_METHOD v3_cpols = {
90 NID_certificate_policies, 0, ASN1_ITEM_ref(CERTIFICATEPOLICIES),
91 0, 0, 0, 0,
92 0, 0,
93 0, 0,
94 (X509V3_EXT_I2R)i2r_certpol,
95 (X509V3_EXT_R2I)r2i_certpol,
96 NULL
97 };
98
99 ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) =
100 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO)
101 ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES)
102
103 IMPLEMENT_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)
104
105 ASN1_SEQUENCE(POLICYINFO) = {
106 ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT),
107 ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO)
108 } ASN1_SEQUENCE_END(POLICYINFO)
109
110 IMPLEMENT_ASN1_FUNCTIONS(POLICYINFO)
111
112 ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other, ASN1_ANY);
113
114 ASN1_ADB(POLICYQUALINFO) = {
115 ADB_ENTRY(NID_id_qt_cps, ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)),
116 ADB_ENTRY(NID_id_qt_unotice, ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE))
117 } ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL);
118
119 ASN1_SEQUENCE(POLICYQUALINFO) = {
120 ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT),
121 ASN1_ADB_OBJECT(POLICYQUALINFO)
122 } ASN1_SEQUENCE_END(POLICYQUALINFO)
123
124 IMPLEMENT_ASN1_FUNCTIONS(POLICYQUALINFO)
125
126 ASN1_SEQUENCE(USERNOTICE) = {
127 ASN1_OPT(USERNOTICE, noticeref, NOTICEREF),
128 ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT)
129 } ASN1_SEQUENCE_END(USERNOTICE)
130
131 IMPLEMENT_ASN1_FUNCTIONS(USERNOTICE)
132
133 ASN1_SEQUENCE(NOTICEREF) = {
134 ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT),
135 ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER)
136 } ASN1_SEQUENCE_END(NOTICEREF)
137
138 IMPLEMENT_ASN1_FUNCTIONS(NOTICEREF)
139
140 static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
141 X509V3_CTX *ctx, char *value)
142 {
143 STACK_OF(POLICYINFO) *pols = NULL;
144 char *pstr;
145 POLICYINFO *pol;
146 ASN1_OBJECT *pobj;
147 STACK_OF(CONF_VALUE) *vals;
148 CONF_VALUE *cnf;
149 size_t i;
150 int ia5org;
151 pols = sk_POLICYINFO_new_null();
152 if (pols == NULL) {
153 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
154 return NULL;
155 }
156 vals = X509V3_parse_list(value);
157 if (vals == NULL) {
158 OPENSSL_PUT_ERROR(X509V3, ERR_R_X509V3_LIB);
159 goto err;
160 }
161 ia5org = 0;
162 for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
163 cnf = sk_CONF_VALUE_value(vals, i);
164 if (cnf->value || !cnf->name) {
165 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_POLICY_IDENTIFIER);
166 X509V3_conf_err(cnf);
167 goto err;
168 }
169 pstr = cnf->name;
170 if (!strcmp(pstr, "ia5org")) {
171 ia5org = 1;
172 continue;
173 } else if (*pstr == '@') {
174 STACK_OF(CONF_VALUE) *polsect;
175 polsect = X509V3_get_section(ctx, pstr + 1);
176 if (!polsect) {
177 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SECTION);
178
179 X509V3_conf_err(cnf);
180 goto err;
181 }
182 pol = policy_section(ctx, polsect, ia5org);
183 X509V3_section_free(ctx, polsect);
184 if (!pol)
185 goto err;
186 } else {
187 if (!(pobj = OBJ_txt2obj(cnf->name, 0))) {
188 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER);
189 X509V3_conf_err(cnf);
190 goto err;
191 }
192 pol = POLICYINFO_new();
193 if (pol == NULL) {
194 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
195 ASN1_OBJECT_free(pobj);
196 goto err;
197 }
198 pol->policyid = pobj;
199 }
200 if (!sk_POLICYINFO_push(pols, pol)) {
201 POLICYINFO_free(pol);
202 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
203 goto err;
204 }
205 }
206 sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
207 return pols;
208 err:
209 sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
210 sk_POLICYINFO_pop_free(pols, POLICYINFO_free);
211 return NULL;
212 }
213
policy_section(X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* polstrs,int ia5org)214 static POLICYINFO *policy_section(X509V3_CTX *ctx,
215 STACK_OF(CONF_VALUE) *polstrs, int ia5org)
216 {
217 size_t i;
218 CONF_VALUE *cnf;
219 POLICYINFO *pol;
220 POLICYQUALINFO *qual;
221 if (!(pol = POLICYINFO_new()))
222 goto merr;
223 for (i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {
224 cnf = sk_CONF_VALUE_value(polstrs, i);
225 if (!strcmp(cnf->name, "policyIdentifier")) {
226 ASN1_OBJECT *pobj;
227 if (!(pobj = OBJ_txt2obj(cnf->value, 0))) {
228 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER);
229 X509V3_conf_err(cnf);
230 goto err;
231 }
232 pol->policyid = pobj;
233
234 } else if (!x509v3_name_cmp(cnf->name, "CPS")) {
235 if (!pol->qualifiers)
236 pol->qualifiers = sk_POLICYQUALINFO_new_null();
237 if (!(qual = POLICYQUALINFO_new()))
238 goto merr;
239 if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
240 goto merr;
241 qual->pqualid = OBJ_nid2obj(NID_id_qt_cps);
242 if (qual->pqualid == NULL) {
243 OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR);
244 goto err;
245 }
246 qual->d.cpsuri = ASN1_IA5STRING_new();
247 if (qual->d.cpsuri == NULL) {
248 goto err;
249 }
250 if (!ASN1_STRING_set(qual->d.cpsuri, cnf->value,
251 strlen(cnf->value)))
252 goto merr;
253 } else if (!x509v3_name_cmp(cnf->name, "userNotice")) {
254 STACK_OF(CONF_VALUE) *unot;
255 if (*cnf->value != '@') {
256 OPENSSL_PUT_ERROR(X509V3, X509V3_R_EXPECTED_A_SECTION_NAME);
257 X509V3_conf_err(cnf);
258 goto err;
259 }
260 unot = X509V3_get_section(ctx, cnf->value + 1);
261 if (!unot) {
262 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SECTION);
263
264 X509V3_conf_err(cnf);
265 goto err;
266 }
267 qual = notice_section(ctx, unot, ia5org);
268 X509V3_section_free(ctx, unot);
269 if (!qual)
270 goto err;
271 if (!pol->qualifiers)
272 pol->qualifiers = sk_POLICYQUALINFO_new_null();
273 if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
274 goto merr;
275 } else {
276 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION);
277
278 X509V3_conf_err(cnf);
279 goto err;
280 }
281 }
282 if (!pol->policyid) {
283 OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_POLICY_IDENTIFIER);
284 goto err;
285 }
286
287 return pol;
288
289 merr:
290 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
291
292 err:
293 POLICYINFO_free(pol);
294 return NULL;
295
296 }
297
notice_section(X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* unot,int ia5org)298 static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
299 STACK_OF(CONF_VALUE) *unot, int ia5org)
300 {
301 size_t i;
302 int ret;
303 CONF_VALUE *cnf;
304 USERNOTICE *not;
305 POLICYQUALINFO *qual;
306 if (!(qual = POLICYQUALINFO_new()))
307 goto merr;
308 qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice);
309 if (qual->pqualid == NULL) {
310 OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR);
311 goto err;
312 }
313 if (!(not = USERNOTICE_new()))
314 goto merr;
315 qual->d.usernotice = not;
316 for (i = 0; i < sk_CONF_VALUE_num(unot); i++) {
317 cnf = sk_CONF_VALUE_value(unot, i);
318 if (!strcmp(cnf->name, "explicitText")) {
319 not->exptext = ASN1_VISIBLESTRING_new();
320 if (not->exptext == NULL)
321 goto merr;
322 if (!ASN1_STRING_set(not->exptext, cnf->value,
323 strlen(cnf->value)))
324 goto merr;
325 } else if (!strcmp(cnf->name, "organization")) {
326 NOTICEREF *nref;
327 if (!not->noticeref) {
328 if (!(nref = NOTICEREF_new()))
329 goto merr;
330 not->noticeref = nref;
331 } else
332 nref = not->noticeref;
333 if (ia5org)
334 nref->organization->type = V_ASN1_IA5STRING;
335 else
336 nref->organization->type = V_ASN1_VISIBLESTRING;
337 if (!ASN1_STRING_set(nref->organization, cnf->value,
338 strlen(cnf->value)))
339 goto merr;
340 } else if (!strcmp(cnf->name, "noticeNumbers")) {
341 NOTICEREF *nref;
342 STACK_OF(CONF_VALUE) *nos;
343 if (!not->noticeref) {
344 if (!(nref = NOTICEREF_new()))
345 goto merr;
346 not->noticeref = nref;
347 } else
348 nref = not->noticeref;
349 nos = X509V3_parse_list(cnf->value);
350 if (!nos || !sk_CONF_VALUE_num(nos)) {
351 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NUMBERS);
352 X509V3_conf_err(cnf);
353 goto err;
354 }
355 ret = nref_nos(nref->noticenos, nos);
356 sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
357 if (!ret)
358 goto err;
359 } else {
360 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION);
361 X509V3_conf_err(cnf);
362 goto err;
363 }
364 }
365
366 if (not->noticeref &&
367 (!not->noticeref->noticenos || !not->noticeref->organization)) {
368 OPENSSL_PUT_ERROR(X509V3, X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
369 goto err;
370 }
371
372 return qual;
373
374 merr:
375 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
376
377 err:
378 POLICYQUALINFO_free(qual);
379 return NULL;
380 }
381
nref_nos(STACK_OF (ASN1_INTEGER)* nnums,STACK_OF (CONF_VALUE)* nos)382 static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos)
383 {
384 CONF_VALUE *cnf;
385 ASN1_INTEGER *aint;
386
387 size_t i;
388
389 for (i = 0; i < sk_CONF_VALUE_num(nos); i++) {
390 cnf = sk_CONF_VALUE_value(nos, i);
391 if (!(aint = s2i_ASN1_INTEGER(NULL, cnf->name))) {
392 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NUMBER);
393 goto err;
394 }
395 if (!sk_ASN1_INTEGER_push(nnums, aint))
396 goto merr;
397 }
398 return 1;
399
400 merr:
401 ASN1_INTEGER_free(aint);
402 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
403
404 err:
405 return 0;
406 }
407
i2r_certpol(X509V3_EXT_METHOD * method,STACK_OF (POLICYINFO)* pol,BIO * out,int indent)408 static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
409 BIO *out, int indent)
410 {
411 size_t i;
412 POLICYINFO *pinfo;
413 /* First print out the policy OIDs */
414 for (i = 0; i < sk_POLICYINFO_num(pol); i++) {
415 pinfo = sk_POLICYINFO_value(pol, i);
416 BIO_printf(out, "%*sPolicy: ", indent, "");
417 i2a_ASN1_OBJECT(out, pinfo->policyid);
418 BIO_puts(out, "\n");
419 if (pinfo->qualifiers)
420 print_qualifiers(out, pinfo->qualifiers, indent + 2);
421 }
422 return 1;
423 }
424
print_qualifiers(BIO * out,STACK_OF (POLICYQUALINFO)* quals,int indent)425 static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
426 int indent)
427 {
428 POLICYQUALINFO *qualinfo;
429 size_t i;
430 for (i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
431 qualinfo = sk_POLICYQUALINFO_value(quals, i);
432 switch (OBJ_obj2nid(qualinfo->pqualid)) {
433 case NID_id_qt_cps:
434 BIO_printf(out, "%*sCPS: %.*s\n", indent, "",
435 qualinfo->d.cpsuri->length, qualinfo->d.cpsuri->data);
436 break;
437
438 case NID_id_qt_unotice:
439 BIO_printf(out, "%*sUser Notice:\n", indent, "");
440 print_notice(out, qualinfo->d.usernotice, indent + 2);
441 break;
442
443 default:
444 BIO_printf(out, "%*sUnknown Qualifier: ", indent + 2, "");
445
446 i2a_ASN1_OBJECT(out, qualinfo->pqualid);
447 BIO_puts(out, "\n");
448 break;
449 }
450 }
451 }
452
print_notice(BIO * out,USERNOTICE * notice,int indent)453 static void print_notice(BIO *out, USERNOTICE *notice, int indent)
454 {
455 size_t i;
456 if (notice->noticeref) {
457 NOTICEREF *ref;
458 ref = notice->noticeref;
459 BIO_printf(out, "%*sOrganization: %.*s\n", indent, "",
460 ref->organization->length, ref->organization->data);
461 BIO_printf(out, "%*sNumber%s: ", indent, "",
462 sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
463 for (i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {
464 ASN1_INTEGER *num;
465 char *tmp;
466 num = sk_ASN1_INTEGER_value(ref->noticenos, i);
467 if (i)
468 BIO_puts(out, ", ");
469 if (num == NULL)
470 BIO_puts(out, "(null)");
471 else {
472 tmp = i2s_ASN1_INTEGER(NULL, num);
473 if (tmp == NULL)
474 return;
475 BIO_puts(out, tmp);
476 OPENSSL_free(tmp);
477 }
478 }
479 BIO_puts(out, "\n");
480 }
481 if (notice->exptext)
482 BIO_printf(out, "%*sExplicit Text: %.*s\n", indent, "",
483 notice->exptext->length, notice->exptext->data);
484 }
485
X509_POLICY_NODE_print(BIO * out,X509_POLICY_NODE * node,int indent)486 void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent)
487 {
488 const X509_POLICY_DATA *dat = node->data;
489
490 BIO_printf(out, "%*sPolicy: ", indent, "");
491
492 i2a_ASN1_OBJECT(out, dat->valid_policy);
493 BIO_puts(out, "\n");
494 BIO_printf(out, "%*s%s\n", indent + 2, "",
495 node_data_critical(dat) ? "Critical" : "Non Critical");
496 if (dat->qualifier_set)
497 print_qualifiers(out, dat->qualifier_set, indent + 2);
498 else
499 BIO_printf(out, "%*sNo Qualifiers\n", indent + 2, "");
500 }
501