1/* v3_cpols.c */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999-2004 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
59#include <stdio.h>
60#include "cryptlib.h"
61#include <openssl/conf.h>
62#include <openssl/asn1.h>
63#include <openssl/asn1t.h>
64#include <openssl/x509v3.h>
65
66#include "pcy_int.h"
67
68/* Certificate policies extension support: this one is a bit complex... */
69
70static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol, BIO *out, int indent);
71static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, char *value);
72static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals, int indent);
73static void print_notice(BIO *out, USERNOTICE *notice, int indent);
74static POLICYINFO *policy_section(X509V3_CTX *ctx,
75				 STACK_OF(CONF_VALUE) *polstrs, int ia5org);
76static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
77					STACK_OF(CONF_VALUE) *unot, int ia5org);
78static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos);
79
80const X509V3_EXT_METHOD v3_cpols = {
81NID_certificate_policies, 0,ASN1_ITEM_ref(CERTIFICATEPOLICIES),
820,0,0,0,
830,0,
840,0,
85(X509V3_EXT_I2R)i2r_certpol,
86(X509V3_EXT_R2I)r2i_certpol,
87NULL
88};
89
90ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) =
91	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO)
92ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES)
93
94IMPLEMENT_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)
95
96ASN1_SEQUENCE(POLICYINFO) = {
97	ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT),
98	ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO)
99} ASN1_SEQUENCE_END(POLICYINFO)
100
101IMPLEMENT_ASN1_FUNCTIONS(POLICYINFO)
102
103ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other, ASN1_ANY);
104
105ASN1_ADB(POLICYQUALINFO) = {
106	ADB_ENTRY(NID_id_qt_cps, ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)),
107	ADB_ENTRY(NID_id_qt_unotice, ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE))
108} ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL);
109
110ASN1_SEQUENCE(POLICYQUALINFO) = {
111	ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT),
112	ASN1_ADB_OBJECT(POLICYQUALINFO)
113} ASN1_SEQUENCE_END(POLICYQUALINFO)
114
115IMPLEMENT_ASN1_FUNCTIONS(POLICYQUALINFO)
116
117ASN1_SEQUENCE(USERNOTICE) = {
118	ASN1_OPT(USERNOTICE, noticeref, NOTICEREF),
119	ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT)
120} ASN1_SEQUENCE_END(USERNOTICE)
121
122IMPLEMENT_ASN1_FUNCTIONS(USERNOTICE)
123
124ASN1_SEQUENCE(NOTICEREF) = {
125	ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT),
126	ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER)
127} ASN1_SEQUENCE_END(NOTICEREF)
128
129IMPLEMENT_ASN1_FUNCTIONS(NOTICEREF)
130
131static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
132		X509V3_CTX *ctx, char *value)
133{
134	STACK_OF(POLICYINFO) *pols = NULL;
135	char *pstr;
136	POLICYINFO *pol;
137	ASN1_OBJECT *pobj;
138	STACK_OF(CONF_VALUE) *vals;
139	CONF_VALUE *cnf;
140	int i, ia5org;
141	pols = sk_POLICYINFO_new_null();
142	if (pols == NULL) {
143		X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
144		return NULL;
145	}
146	vals =  X509V3_parse_list(value);
147	if (vals == NULL) {
148		X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_X509V3_LIB);
149		goto err;
150	}
151	ia5org = 0;
152	for(i = 0; i < sk_CONF_VALUE_num(vals); i++) {
153		cnf = sk_CONF_VALUE_value(vals, i);
154		if(cnf->value || !cnf->name ) {
155			X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_POLICY_IDENTIFIER);
156			X509V3_conf_err(cnf);
157			goto err;
158		}
159		pstr = cnf->name;
160		if(!strcmp(pstr,"ia5org")) {
161			ia5org = 1;
162			continue;
163		} else if(*pstr == '@') {
164			STACK_OF(CONF_VALUE) *polsect;
165			polsect = X509V3_get_section(ctx, pstr + 1);
166			if(!polsect) {
167				X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_SECTION);
168
169				X509V3_conf_err(cnf);
170				goto err;
171			}
172			pol = policy_section(ctx, polsect, ia5org);
173			X509V3_section_free(ctx, polsect);
174			if(!pol) goto err;
175		} else {
176			if(!(pobj = OBJ_txt2obj(cnf->name, 0))) {
177				X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_OBJECT_IDENTIFIER);
178				X509V3_conf_err(cnf);
179				goto err;
180			}
181			pol = POLICYINFO_new();
182			pol->policyid = pobj;
183		}
184		if (!sk_POLICYINFO_push(pols, pol)){
185			POLICYINFO_free(pol);
186			X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
187			goto err;
188		}
189	}
190	sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
191	return pols;
192	err:
193	sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
194	sk_POLICYINFO_pop_free(pols, POLICYINFO_free);
195	return NULL;
196}
197
198static POLICYINFO *policy_section(X509V3_CTX *ctx,
199				STACK_OF(CONF_VALUE) *polstrs, int ia5org)
200{
201	int i;
202	CONF_VALUE *cnf;
203	POLICYINFO *pol;
204	POLICYQUALINFO *qual;
205	if(!(pol = POLICYINFO_new())) goto merr;
206	for(i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {
207		cnf = sk_CONF_VALUE_value(polstrs, i);
208		if(!strcmp(cnf->name, "policyIdentifier")) {
209			ASN1_OBJECT *pobj;
210			if(!(pobj = OBJ_txt2obj(cnf->value, 0))) {
211				X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_OBJECT_IDENTIFIER);
212				X509V3_conf_err(cnf);
213				goto err;
214			}
215			pol->policyid = pobj;
216
217		} else if(!name_cmp(cnf->name, "CPS")) {
218			if(!pol->qualifiers) pol->qualifiers =
219						 sk_POLICYQUALINFO_new_null();
220			if(!(qual = POLICYQUALINFO_new())) goto merr;
221			if(!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
222								 goto merr;
223			qual->pqualid = OBJ_nid2obj(NID_id_qt_cps);
224			qual->d.cpsuri = M_ASN1_IA5STRING_new();
225			if(!ASN1_STRING_set(qual->d.cpsuri, cnf->value,
226						 strlen(cnf->value))) goto merr;
227		} else if(!name_cmp(cnf->name, "userNotice")) {
228			STACK_OF(CONF_VALUE) *unot;
229			if(*cnf->value != '@') {
230				X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_EXPECTED_A_SECTION_NAME);
231				X509V3_conf_err(cnf);
232				goto err;
233			}
234			unot = X509V3_get_section(ctx, cnf->value + 1);
235			if(!unot) {
236				X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_SECTION);
237
238				X509V3_conf_err(cnf);
239				goto err;
240			}
241			qual = notice_section(ctx, unot, ia5org);
242			X509V3_section_free(ctx, unot);
243			if(!qual) goto err;
244			if(!pol->qualifiers) pol->qualifiers =
245						 sk_POLICYQUALINFO_new_null();
246			if(!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
247								 goto merr;
248		} else {
249			X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_OPTION);
250
251			X509V3_conf_err(cnf);
252			goto err;
253		}
254	}
255	if(!pol->policyid) {
256		X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_NO_POLICY_IDENTIFIER);
257		goto err;
258	}
259
260	return pol;
261
262	merr:
263	X509V3err(X509V3_F_POLICY_SECTION,ERR_R_MALLOC_FAILURE);
264
265	err:
266	POLICYINFO_free(pol);
267	return NULL;
268
269
270}
271
272static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
273					STACK_OF(CONF_VALUE) *unot, int ia5org)
274{
275	int i, ret;
276	CONF_VALUE *cnf;
277	USERNOTICE *not;
278	POLICYQUALINFO *qual;
279	if(!(qual = POLICYQUALINFO_new())) goto merr;
280	qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice);
281	if(!(not = USERNOTICE_new())) goto merr;
282	qual->d.usernotice = not;
283	for(i = 0; i < sk_CONF_VALUE_num(unot); i++) {
284		cnf = sk_CONF_VALUE_value(unot, i);
285		if(!strcmp(cnf->name, "explicitText")) {
286			not->exptext = M_ASN1_VISIBLESTRING_new();
287			if(!ASN1_STRING_set(not->exptext, cnf->value,
288						 strlen(cnf->value))) goto merr;
289		} else if(!strcmp(cnf->name, "organization")) {
290			NOTICEREF *nref;
291			if(!not->noticeref) {
292				if(!(nref = NOTICEREF_new())) goto merr;
293				not->noticeref = nref;
294			} else nref = not->noticeref;
295			if(ia5org) nref->organization->type = V_ASN1_IA5STRING;
296			else nref->organization->type = V_ASN1_VISIBLESTRING;
297			if(!ASN1_STRING_set(nref->organization, cnf->value,
298						 strlen(cnf->value))) goto merr;
299		} else if(!strcmp(cnf->name, "noticeNumbers")) {
300			NOTICEREF *nref;
301			STACK_OF(CONF_VALUE) *nos;
302			if(!not->noticeref) {
303				if(!(nref = NOTICEREF_new())) goto merr;
304				not->noticeref = nref;
305			} else nref = not->noticeref;
306			nos = X509V3_parse_list(cnf->value);
307			if(!nos || !sk_CONF_VALUE_num(nos)) {
308				X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_INVALID_NUMBERS);
309				X509V3_conf_err(cnf);
310				goto err;
311			}
312			ret = nref_nos(nref->noticenos, nos);
313			sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
314			if (!ret)
315				goto err;
316		} else {
317			X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_INVALID_OPTION);
318			X509V3_conf_err(cnf);
319			goto err;
320		}
321	}
322
323	if(not->noticeref &&
324	      (!not->noticeref->noticenos || !not->noticeref->organization)) {
325			X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
326			goto err;
327	}
328
329	return qual;
330
331	merr:
332	X509V3err(X509V3_F_NOTICE_SECTION,ERR_R_MALLOC_FAILURE);
333
334	err:
335	POLICYQUALINFO_free(qual);
336	return NULL;
337}
338
339static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos)
340{
341	CONF_VALUE *cnf;
342	ASN1_INTEGER *aint;
343
344	int i;
345
346	for(i = 0; i < sk_CONF_VALUE_num(nos); i++) {
347		cnf = sk_CONF_VALUE_value(nos, i);
348		if(!(aint = s2i_ASN1_INTEGER(NULL, cnf->name))) {
349			X509V3err(X509V3_F_NREF_NOS,X509V3_R_INVALID_NUMBER);
350			goto err;
351		}
352		if(!sk_ASN1_INTEGER_push(nnums, aint)) goto merr;
353	}
354	return 1;
355
356	merr:
357	X509V3err(X509V3_F_NREF_NOS,ERR_R_MALLOC_FAILURE);
358
359	err:
360	sk_ASN1_INTEGER_pop_free(nnums, ASN1_STRING_free);
361	return 0;
362}
363
364
365static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
366		BIO *out, int indent)
367{
368	int i;
369	POLICYINFO *pinfo;
370	/* First print out the policy OIDs */
371	for(i = 0; i < sk_POLICYINFO_num(pol); i++) {
372		pinfo = sk_POLICYINFO_value(pol, i);
373		BIO_printf(out, "%*sPolicy: ", indent, "");
374		i2a_ASN1_OBJECT(out, pinfo->policyid);
375		BIO_puts(out, "\n");
376		if(pinfo->qualifiers)
377			 print_qualifiers(out, pinfo->qualifiers, indent + 2);
378	}
379	return 1;
380}
381
382static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
383		int indent)
384{
385	POLICYQUALINFO *qualinfo;
386	int i;
387	for(i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
388		qualinfo = sk_POLICYQUALINFO_value(quals, i);
389		switch(OBJ_obj2nid(qualinfo->pqualid))
390		{
391			case NID_id_qt_cps:
392			BIO_printf(out, "%*sCPS: %s\n", indent, "",
393						qualinfo->d.cpsuri->data);
394			break;
395
396			case NID_id_qt_unotice:
397			BIO_printf(out, "%*sUser Notice:\n", indent, "");
398			print_notice(out, qualinfo->d.usernotice, indent + 2);
399			break;
400
401			default:
402			BIO_printf(out, "%*sUnknown Qualifier: ",
403							 indent + 2, "");
404
405			i2a_ASN1_OBJECT(out, qualinfo->pqualid);
406			BIO_puts(out, "\n");
407			break;
408		}
409	}
410}
411
412static void print_notice(BIO *out, USERNOTICE *notice, int indent)
413{
414	int i;
415	if(notice->noticeref) {
416		NOTICEREF *ref;
417		ref = notice->noticeref;
418		BIO_printf(out, "%*sOrganization: %s\n", indent, "",
419						 ref->organization->data);
420		BIO_printf(out, "%*sNumber%s: ", indent, "",
421			   sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
422		for(i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {
423			ASN1_INTEGER *num;
424			char *tmp;
425			num = sk_ASN1_INTEGER_value(ref->noticenos, i);
426			if(i) BIO_puts(out, ", ");
427			tmp = i2s_ASN1_INTEGER(NULL, num);
428			BIO_puts(out, tmp);
429			OPENSSL_free(tmp);
430		}
431		BIO_puts(out, "\n");
432	}
433	if(notice->exptext)
434		BIO_printf(out, "%*sExplicit Text: %s\n", indent, "",
435							 notice->exptext->data);
436}
437
438void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent)
439	{
440	const X509_POLICY_DATA *dat = node->data;
441
442	BIO_printf(out, "%*sPolicy: ", indent, "");
443
444	i2a_ASN1_OBJECT(out, dat->valid_policy);
445	BIO_puts(out, "\n");
446	BIO_printf(out, "%*s%s\n", indent + 2, "",
447		node_data_critical(dat) ? "Critical" : "Non Critical");
448	if (dat->qualifier_set)
449		print_qualifiers(out, dat->qualifier_set, indent + 2);
450	else
451		BIO_printf(out, "%*sNo Qualifiers\n", indent + 2, "");
452	}
453
454IMPLEMENT_STACK_OF(X509_POLICY_NODE)
455