v3_cpols.c revision 296341 
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 "cryptlib.h"
62#include <openssl/conf.h>
63#include <openssl/asn1.h>
64#include <openssl/asn1t.h>
65#include <openssl/x509v3.h>
66
67#include "pcy_int.h"
68
69/* Certificate policies extension support: this one is a bit complex... */
70
71static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
72                       BIO *out, int indent);
73static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
74                                         X509V3_CTX *ctx, char *value);
75static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
76                             int indent);
77static void print_notice(BIO *out, USERNOTICE *notice, int indent);
78static POLICYINFO *policy_section(X509V3_CTX *ctx,
79                                  STACK_OF(CONF_VALUE) *polstrs, int ia5org);
80static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
81                                      STACK_OF(CONF_VALUE) *unot, int ia5org);
82static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos);
83
84const X509V3_EXT_METHOD v3_cpols = {
85    NID_certificate_policies, 0, ASN1_ITEM_ref(CERTIFICATEPOLICIES),
86    0, 0, 0, 0,
87    0, 0,
88    0, 0,
89    (X509V3_EXT_I2R)i2r_certpol,
90    (X509V3_EXT_R2I)r2i_certpol,
91    NULL
92};
93
94ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) =
95        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO)
96ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES)
97
98IMPLEMENT_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)
99
100ASN1_SEQUENCE(POLICYINFO) = {
101        ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT),
102        ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO)
103} ASN1_SEQUENCE_END(POLICYINFO)
104
105IMPLEMENT_ASN1_FUNCTIONS(POLICYINFO)
106
107ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other, ASN1_ANY);
108
109ASN1_ADB(POLICYQUALINFO) = {
110        ADB_ENTRY(NID_id_qt_cps, ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)),
111        ADB_ENTRY(NID_id_qt_unotice, ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE))
112} ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL);
113
114ASN1_SEQUENCE(POLICYQUALINFO) = {
115        ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT),
116        ASN1_ADB_OBJECT(POLICYQUALINFO)
117} ASN1_SEQUENCE_END(POLICYQUALINFO)
118
119IMPLEMENT_ASN1_FUNCTIONS(POLICYQUALINFO)
120
121ASN1_SEQUENCE(USERNOTICE) = {
122        ASN1_OPT(USERNOTICE, noticeref, NOTICEREF),
123        ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT)
124} ASN1_SEQUENCE_END(USERNOTICE)
125
126IMPLEMENT_ASN1_FUNCTIONS(USERNOTICE)
127
128ASN1_SEQUENCE(NOTICEREF) = {
129        ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT),
130        ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER)
131} ASN1_SEQUENCE_END(NOTICEREF)
132
133IMPLEMENT_ASN1_FUNCTIONS(NOTICEREF)
134
135static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
136                                         X509V3_CTX *ctx, char *value)
137{
138    STACK_OF(POLICYINFO) *pols = NULL;
139    char *pstr;
140    POLICYINFO *pol;
141    ASN1_OBJECT *pobj;
142    STACK_OF(CONF_VALUE) *vals;
143    CONF_VALUE *cnf;
144    int i, ia5org;
145    pols = sk_POLICYINFO_new_null();
146    if (pols == NULL) {
147        X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
148        return NULL;
149    }
150    vals = X509V3_parse_list(value);
151    if (vals == NULL) {
152        X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_X509V3_LIB);
153        goto err;
154    }
155    ia5org = 0;
156    for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
157        cnf = sk_CONF_VALUE_value(vals, i);
158        if (cnf->value || !cnf->name) {
159            X509V3err(X509V3_F_R2I_CERTPOL,
160                      X509V3_R_INVALID_POLICY_IDENTIFIER);
161            X509V3_conf_err(cnf);
162            goto err;
163        }
164        pstr = cnf->name;
165        if (!strcmp(pstr, "ia5org")) {
166            ia5org = 1;
167            continue;
168        } else if (*pstr == '@') {
169            STACK_OF(CONF_VALUE) *polsect;
170            polsect = X509V3_get_section(ctx, pstr + 1);
171            if (!polsect) {
172                X509V3err(X509V3_F_R2I_CERTPOL, X509V3_R_INVALID_SECTION);
173
174                X509V3_conf_err(cnf);
175                goto err;
176            }
177            pol = policy_section(ctx, polsect, ia5org);
178            X509V3_section_free(ctx, polsect);
179            if (!pol)
180                goto err;
181        } else {
182            if (!(pobj = OBJ_txt2obj(cnf->name, 0))) {
183                X509V3err(X509V3_F_R2I_CERTPOL,
184                          X509V3_R_INVALID_OBJECT_IDENTIFIER);
185                X509V3_conf_err(cnf);
186                goto err;
187            }
188            pol = POLICYINFO_new();
189            pol->policyid = pobj;
190        }
191        if (!sk_POLICYINFO_push(pols, pol)) {
192            POLICYINFO_free(pol);
193            X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
194            goto err;
195        }
196    }
197    sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
198    return pols;
199 err:
200    sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
201    sk_POLICYINFO_pop_free(pols, POLICYINFO_free);
202    return NULL;
203}
204
205static POLICYINFO *policy_section(X509V3_CTX *ctx,
206                                  STACK_OF(CONF_VALUE) *polstrs, int ia5org)
207{
208    int i;
209    CONF_VALUE *cnf;
210    POLICYINFO *pol;
211    POLICYQUALINFO *qual;
212    if (!(pol = POLICYINFO_new()))
213        goto merr;
214    for (i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {
215        cnf = sk_CONF_VALUE_value(polstrs, i);
216        if (!strcmp(cnf->name, "policyIdentifier")) {
217            ASN1_OBJECT *pobj;
218            if (!(pobj = OBJ_txt2obj(cnf->value, 0))) {
219                X509V3err(X509V3_F_POLICY_SECTION,
220                          X509V3_R_INVALID_OBJECT_IDENTIFIER);
221                X509V3_conf_err(cnf);
222                goto err;
223            }
224            pol->policyid = pobj;
225
226        } else if (!name_cmp(cnf->name, "CPS")) {
227            if (!pol->qualifiers)
228                pol->qualifiers = sk_POLICYQUALINFO_new_null();
229            if (!(qual = POLICYQUALINFO_new()))
230                goto merr;
231            if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
232                goto merr;
233            if (!(qual->pqualid = OBJ_nid2obj(NID_id_qt_cps))) {
234                X509V3err(X509V3_F_POLICY_SECTION, ERR_R_INTERNAL_ERROR);
235                goto err;
236            }
237            if (!(qual->d.cpsuri = M_ASN1_IA5STRING_new()))
238                goto merr;
239            if (!ASN1_STRING_set(qual->d.cpsuri, cnf->value,
240                                 strlen(cnf->value)))
241                goto merr;
242        } else if (!name_cmp(cnf->name, "userNotice")) {
243            STACK_OF(CONF_VALUE) *unot;
244            if (*cnf->value != '@') {
245                X509V3err(X509V3_F_POLICY_SECTION,
246                          X509V3_R_EXPECTED_A_SECTION_NAME);
247                X509V3_conf_err(cnf);
248                goto err;
249            }
250            unot = X509V3_get_section(ctx, cnf->value + 1);
251            if (!unot) {
252                X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_INVALID_SECTION);
253
254                X509V3_conf_err(cnf);
255                goto err;
256            }
257            qual = notice_section(ctx, unot, ia5org);
258            X509V3_section_free(ctx, unot);
259            if (!qual)
260                goto err;
261            if (!pol->qualifiers)
262                pol->qualifiers = sk_POLICYQUALINFO_new_null();
263            if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
264                goto merr;
265        } else {
266            X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_INVALID_OPTION);
267
268            X509V3_conf_err(cnf);
269            goto err;
270        }
271    }
272    if (!pol->policyid) {
273        X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_NO_POLICY_IDENTIFIER);
274        goto err;
275    }
276
277    return pol;
278
279 merr:
280    X509V3err(X509V3_F_POLICY_SECTION, ERR_R_MALLOC_FAILURE);
281
282 err:
283    POLICYINFO_free(pol);
284    return NULL;
285
286}
287
288static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
289                                      STACK_OF(CONF_VALUE) *unot, int ia5org)
290{
291    int i, ret;
292    CONF_VALUE *cnf;
293    USERNOTICE *not;
294    POLICYQUALINFO *qual;
295    if (!(qual = POLICYQUALINFO_new()))
296        goto merr;
297    if (!(qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice))) {
298        X509V3err(X509V3_F_NOTICE_SECTION, ERR_R_INTERNAL_ERROR);
299        goto err;
300    }
301    if (!(not = USERNOTICE_new()))
302        goto merr;
303    qual->d.usernotice = not;
304    for (i = 0; i < sk_CONF_VALUE_num(unot); i++) {
305        cnf = sk_CONF_VALUE_value(unot, i);
306        if (!strcmp(cnf->name, "explicitText")) {
307            if (!(not->exptext = M_ASN1_VISIBLESTRING_new()))
308                goto merr;
309            if (!ASN1_STRING_set(not->exptext, cnf->value,
310                                 strlen(cnf->value)))
311                goto merr;
312        } else if (!strcmp(cnf->name, "organization")) {
313            NOTICEREF *nref;
314            if (!not->noticeref) {
315                if (!(nref = NOTICEREF_new()))
316                    goto merr;
317                not->noticeref = nref;
318            } else
319                nref = not->noticeref;
320            if (ia5org)
321                nref->organization->type = V_ASN1_IA5STRING;
322            else
323                nref->organization->type = V_ASN1_VISIBLESTRING;
324            if (!ASN1_STRING_set(nref->organization, cnf->value,
325                                 strlen(cnf->value)))
326                goto merr;
327        } else if (!strcmp(cnf->name, "noticeNumbers")) {
328            NOTICEREF *nref;
329            STACK_OF(CONF_VALUE) *nos;
330            if (!not->noticeref) {
331                if (!(nref = NOTICEREF_new()))
332                    goto merr;
333                not->noticeref = nref;
334            } else
335                nref = not->noticeref;
336            nos = X509V3_parse_list(cnf->value);
337            if (!nos || !sk_CONF_VALUE_num(nos)) {
338                X509V3err(X509V3_F_NOTICE_SECTION, X509V3_R_INVALID_NUMBERS);
339                X509V3_conf_err(cnf);
340                goto err;
341            }
342            ret = nref_nos(nref->noticenos, nos);
343            sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
344            if (!ret)
345                goto err;
346        } else {
347            X509V3err(X509V3_F_NOTICE_SECTION, X509V3_R_INVALID_OPTION);
348            X509V3_conf_err(cnf);
349            goto err;
350        }
351    }
352
353    if (not->noticeref &&
354        (!not->noticeref->noticenos || !not->noticeref->organization)) {
355        X509V3err(X509V3_F_NOTICE_SECTION,
356                  X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
357        goto err;
358    }
359
360    return qual;
361
362 merr:
363    X509V3err(X509V3_F_NOTICE_SECTION, ERR_R_MALLOC_FAILURE);
364
365 err:
366    POLICYQUALINFO_free(qual);
367    return NULL;
368}
369
370static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos)
371{
372    CONF_VALUE *cnf;
373    ASN1_INTEGER *aint;
374
375    int i;
376
377    for (i = 0; i < sk_CONF_VALUE_num(nos); i++) {
378        cnf = sk_CONF_VALUE_value(nos, i);
379        if (!(aint = s2i_ASN1_INTEGER(NULL, cnf->name))) {
380            X509V3err(X509V3_F_NREF_NOS, X509V3_R_INVALID_NUMBER);
381            goto err;
382        }
383        if (!sk_ASN1_INTEGER_push(nnums, aint))
384            goto merr;
385    }
386    return 1;
387
388 merr:
389    X509V3err(X509V3_F_NREF_NOS, ERR_R_MALLOC_FAILURE);
390
391 err:
392    sk_ASN1_INTEGER_pop_free(nnums, ASN1_STRING_free);
393    return 0;
394}
395
396static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
397                       BIO *out, int indent)
398{
399    int i;
400    POLICYINFO *pinfo;
401    /* First print out the policy OIDs */
402    for (i = 0; i < sk_POLICYINFO_num(pol); i++) {
403        pinfo = sk_POLICYINFO_value(pol, i);
404        BIO_printf(out, "%*sPolicy: ", indent, "");
405        i2a_ASN1_OBJECT(out, pinfo->policyid);
406        BIO_puts(out, "\n");
407        if (pinfo->qualifiers)
408            print_qualifiers(out, pinfo->qualifiers, indent + 2);
409    }
410    return 1;
411}
412
413static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
414                             int indent)
415{
416    POLICYQUALINFO *qualinfo;
417    int i;
418    for (i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
419        qualinfo = sk_POLICYQUALINFO_value(quals, i);
420        switch (OBJ_obj2nid(qualinfo->pqualid)) {
421        case NID_id_qt_cps:
422            BIO_printf(out, "%*sCPS: %s\n", indent, "",
423                       qualinfo->d.cpsuri->data);
424            break;
425
426        case NID_id_qt_unotice:
427            BIO_printf(out, "%*sUser Notice:\n", indent, "");
428            print_notice(out, qualinfo->d.usernotice, indent + 2);
429            break;
430
431        default:
432            BIO_printf(out, "%*sUnknown Qualifier: ", indent + 2, "");
433
434            i2a_ASN1_OBJECT(out, qualinfo->pqualid);
435            BIO_puts(out, "\n");
436            break;
437        }
438    }
439}
440
441static void print_notice(BIO *out, USERNOTICE *notice, int indent)
442{
443    int i;
444    if (notice->noticeref) {
445        NOTICEREF *ref;
446        ref = notice->noticeref;
447        BIO_printf(out, "%*sOrganization: %s\n", indent, "",
448                   ref->organization->data);
449        BIO_printf(out, "%*sNumber%s: ", indent, "",
450                   sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
451        for (i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {
452            ASN1_INTEGER *num;
453            char *tmp;
454            num = sk_ASN1_INTEGER_value(ref->noticenos, i);
455            if (i)
456                BIO_puts(out, ", ");
457            tmp = i2s_ASN1_INTEGER(NULL, num);
458            BIO_puts(out, tmp);
459            OPENSSL_free(tmp);
460        }
461        BIO_puts(out, "\n");
462    }
463    if (notice->exptext)
464        BIO_printf(out, "%*sExplicit Text: %s\n", indent, "",
465                   notice->exptext->data);
466}
467
468void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent)
469{
470    const X509_POLICY_DATA *dat = node->data;
471
472    BIO_printf(out, "%*sPolicy: ", indent, "");
473
474    i2a_ASN1_OBJECT(out, dat->valid_policy);
475    BIO_puts(out, "\n");
476    BIO_printf(out, "%*s%s\n", indent + 2, "",
477               node_data_critical(dat) ? "Critical" : "Non Critical");
478    if (dat->qualifier_set)
479        print_qualifiers(out, dat->qualifier_set, indent + 2);
480    else
481        BIO_printf(out, "%*sNo Qualifiers\n", indent + 2, "");
482}
483
484
485IMPLEMENT_STACK_OF(X509_POLICY_NODE)
486
487IMPLEMENT_STACK_OF(X509_POLICY_DATA)
488