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 "pcy_int.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 (!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 /* TODO(fork): const correctness */
242 qual->pqualid = (ASN1_OBJECT *)OBJ_nid2obj(NID_id_qt_cps);
243 if (qual->pqualid == NULL) {
244 OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR);
245 goto err;
246 }
247 qual->d.cpsuri = M_ASN1_IA5STRING_new();
248 if (qual->d.cpsuri == NULL) {
249 goto err;
250 }
251 if (!ASN1_STRING_set(qual->d.cpsuri, cnf->value,
252 strlen(cnf->value)))
253 goto merr;
254 } else if (!name_cmp(cnf->name, "userNotice")) {
255 STACK_OF(CONF_VALUE) *unot;
256 if (*cnf->value != '@') {
257 OPENSSL_PUT_ERROR(X509V3, X509V3_R_EXPECTED_A_SECTION_NAME);
258 X509V3_conf_err(cnf);
259 goto err;
260 }
261 unot = X509V3_get_section(ctx, cnf->value + 1);
262 if (!unot) {
263 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SECTION);
264
265 X509V3_conf_err(cnf);
266 goto err;
267 }
268 qual = notice_section(ctx, unot, ia5org);
269 X509V3_section_free(ctx, unot);
270 if (!qual)
271 goto err;
272 if (!pol->qualifiers)
273 pol->qualifiers = sk_POLICYQUALINFO_new_null();
274 if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
275 goto merr;
276 } else {
277 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION);
278
279 X509V3_conf_err(cnf);
280 goto err;
281 }
282 }
283 if (!pol->policyid) {
284 OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_POLICY_IDENTIFIER);
285 goto err;
286 }
287
288 return pol;
289
290 merr:
291 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
292
293 err:
294 POLICYINFO_free(pol);
295 return NULL;
296
297 }
298
notice_section(X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* unot,int ia5org)299 static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
300 STACK_OF(CONF_VALUE) *unot, int ia5org)
301 {
302 size_t i;
303 int ret;
304 CONF_VALUE *cnf;
305 USERNOTICE *not;
306 POLICYQUALINFO *qual;
307 if (!(qual = POLICYQUALINFO_new()))
308 goto merr;
309 /* TODO(fork): const correctness */
310 qual->pqualid = (ASN1_OBJECT *)OBJ_nid2obj(NID_id_qt_unotice);
311 if (qual->pqualid == NULL) {
312 OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR);
313 goto err;
314 }
315 if (!(not = USERNOTICE_new()))
316 goto merr;
317 qual->d.usernotice = not;
318 for (i = 0; i < sk_CONF_VALUE_num(unot); i++) {
319 cnf = sk_CONF_VALUE_value(unot, i);
320 if (!strcmp(cnf->name, "explicitText")) {
321 not->exptext = M_ASN1_VISIBLESTRING_new();
322 if (not->exptext == NULL)
323 goto merr;
324 if (!ASN1_STRING_set(not->exptext, cnf->value,
325 strlen(cnf->value)))
326 goto merr;
327 } else if (!strcmp(cnf->name, "organization")) {
328 NOTICEREF *nref;
329 if (!not->noticeref) {
330 if (!(nref = NOTICEREF_new()))
331 goto merr;
332 not->noticeref = nref;
333 } else
334 nref = not->noticeref;
335 if (ia5org)
336 nref->organization->type = V_ASN1_IA5STRING;
337 else
338 nref->organization->type = V_ASN1_VISIBLESTRING;
339 if (!ASN1_STRING_set(nref->organization, cnf->value,
340 strlen(cnf->value)))
341 goto merr;
342 } else if (!strcmp(cnf->name, "noticeNumbers")) {
343 NOTICEREF *nref;
344 STACK_OF(CONF_VALUE) *nos;
345 if (!not->noticeref) {
346 if (!(nref = NOTICEREF_new()))
347 goto merr;
348 not->noticeref = nref;
349 } else
350 nref = not->noticeref;
351 nos = X509V3_parse_list(cnf->value);
352 if (!nos || !sk_CONF_VALUE_num(nos)) {
353 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NUMBERS);
354 X509V3_conf_err(cnf);
355 goto err;
356 }
357 ret = nref_nos(nref->noticenos, nos);
358 sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
359 if (!ret)
360 goto err;
361 } else {
362 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION);
363 X509V3_conf_err(cnf);
364 goto err;
365 }
366 }
367
368 if (not->noticeref &&
369 (!not->noticeref->noticenos || !not->noticeref->organization)) {
370 OPENSSL_PUT_ERROR(X509V3, X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
371 goto err;
372 }
373
374 return qual;
375
376 merr:
377 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
378
379 err:
380 POLICYQUALINFO_free(qual);
381 return NULL;
382 }
383
nref_nos(STACK_OF (ASN1_INTEGER)* nnums,STACK_OF (CONF_VALUE)* nos)384 static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos)
385 {
386 CONF_VALUE *cnf;
387 ASN1_INTEGER *aint;
388
389 size_t i;
390
391 for (i = 0; i < sk_CONF_VALUE_num(nos); i++) {
392 cnf = sk_CONF_VALUE_value(nos, i);
393 if (!(aint = s2i_ASN1_INTEGER(NULL, cnf->name))) {
394 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NUMBER);
395 goto err;
396 }
397 if (!sk_ASN1_INTEGER_push(nnums, aint))
398 goto merr;
399 }
400 return 1;
401
402 merr:
403 ASN1_INTEGER_free(aint);
404 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
405
406 err:
407 return 0;
408 }
409
i2r_certpol(X509V3_EXT_METHOD * method,STACK_OF (POLICYINFO)* pol,BIO * out,int indent)410 static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
411 BIO *out, int indent)
412 {
413 size_t i;
414 POLICYINFO *pinfo;
415 /* First print out the policy OIDs */
416 for (i = 0; i < sk_POLICYINFO_num(pol); i++) {
417 pinfo = sk_POLICYINFO_value(pol, i);
418 BIO_printf(out, "%*sPolicy: ", indent, "");
419 i2a_ASN1_OBJECT(out, pinfo->policyid);
420 BIO_puts(out, "\n");
421 if (pinfo->qualifiers)
422 print_qualifiers(out, pinfo->qualifiers, indent + 2);
423 }
424 return 1;
425 }
426
print_qualifiers(BIO * out,STACK_OF (POLICYQUALINFO)* quals,int indent)427 static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
428 int indent)
429 {
430 POLICYQUALINFO *qualinfo;
431 size_t i;
432 for (i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
433 qualinfo = sk_POLICYQUALINFO_value(quals, i);
434 switch (OBJ_obj2nid(qualinfo->pqualid)) {
435 case NID_id_qt_cps:
436 BIO_printf(out, "%*sCPS: %s\n", indent, "",
437 qualinfo->d.cpsuri->data);
438 break;
439
440 case NID_id_qt_unotice:
441 BIO_printf(out, "%*sUser Notice:\n", indent, "");
442 print_notice(out, qualinfo->d.usernotice, indent + 2);
443 break;
444
445 default:
446 BIO_printf(out, "%*sUnknown Qualifier: ", indent + 2, "");
447
448 i2a_ASN1_OBJECT(out, qualinfo->pqualid);
449 BIO_puts(out, "\n");
450 break;
451 }
452 }
453 }
454
print_notice(BIO * out,USERNOTICE * notice,int indent)455 static void print_notice(BIO *out, USERNOTICE *notice, int indent)
456 {
457 size_t i;
458 if (notice->noticeref) {
459 NOTICEREF *ref;
460 ref = notice->noticeref;
461 BIO_printf(out, "%*sOrganization: %s\n", indent, "",
462 ref->organization->data);
463 BIO_printf(out, "%*sNumber%s: ", indent, "",
464 sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
465 for (i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {
466 ASN1_INTEGER *num;
467 char *tmp;
468 num = sk_ASN1_INTEGER_value(ref->noticenos, i);
469 if (i)
470 BIO_puts(out, ", ");
471 if (num == NULL)
472 BIO_puts(out, "(null)");
473 else {
474 tmp = i2s_ASN1_INTEGER(NULL, num);
475 if (tmp == NULL)
476 return;
477 BIO_puts(out, tmp);
478 OPENSSL_free(tmp);
479 }
480 }
481 BIO_puts(out, "\n");
482 }
483 if (notice->exptext)
484 BIO_printf(out, "%*sExplicit Text: %s\n", indent, "",
485 notice->exptext->data);
486 }
487
X509_POLICY_NODE_print(BIO * out,X509_POLICY_NODE * node,int indent)488 void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent)
489 {
490 const X509_POLICY_DATA *dat = node->data;
491
492 BIO_printf(out, "%*sPolicy: ", indent, "");
493
494 i2a_ASN1_OBJECT(out, dat->valid_policy);
495 BIO_puts(out, "\n");
496 BIO_printf(out, "%*s%s\n", indent + 2, "",
497 node_data_critical(dat) ? "Critical" : "Non Critical");
498 if (dat->qualifier_set)
499 print_qualifiers(out, dat->qualifier_set, indent + 2);
500 else
501 BIO_printf(out, "%*sNo Qualifiers\n", indent + 2, "");
502 }
503