2 * Copyright 1999-2022 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 #include "internal/cryptlib.h"
12 #include <openssl/conf.h>
13 #include <openssl/asn1.h>
14 #include <openssl/asn1t.h>
15 #include <openssl/x509v3.h>
17 #include "crypto/x509.h"
19 #include "x509_local.h"
21 static void *v2i_crld(const X509V3_EXT_METHOD *method,
22 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
23 static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
26 const X509V3_EXT_METHOD ossl_v3_crld = {
27 NID_crl_distribution_points, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
36 const X509V3_EXT_METHOD ossl_v3_freshest_crl = {
37 NID_freshest_crl, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
46 static STACK_OF(GENERAL_NAME) *gnames_from_sectname(X509V3_CTX *ctx,
49 STACK_OF(CONF_VALUE) *gnsect;
50 STACK_OF(GENERAL_NAME) *gens;
52 gnsect = X509V3_get_section(ctx, sect + 1);
54 gnsect = X509V3_parse_list(sect);
56 ERR_raise(ERR_LIB_X509V3, X509V3_R_SECTION_NOT_FOUND);
59 gens = v2i_GENERAL_NAMES(NULL, ctx, gnsect);
61 X509V3_section_free(ctx, gnsect);
63 sk_CONF_VALUE_pop_free(gnsect, X509V3_conf_free);
67 static int set_dist_point_name(DIST_POINT_NAME **pdp, X509V3_CTX *ctx,
70 STACK_OF(GENERAL_NAME) *fnm = NULL;
71 STACK_OF(X509_NAME_ENTRY) *rnm = NULL;
73 if (HAS_PREFIX(cnf->name, "fullname")) {
74 fnm = gnames_from_sectname(ctx, cnf->value);
77 } else if (strcmp(cnf->name, "relativename") == 0) {
79 STACK_OF(CONF_VALUE) *dnsect;
84 dnsect = X509V3_get_section(ctx, cnf->value);
87 ERR_raise(ERR_LIB_X509V3, X509V3_R_SECTION_NOT_FOUND);
90 ret = X509V3_NAME_from_section(nm, dnsect, MBSTRING_ASC);
91 X509V3_section_free(ctx, dnsect);
95 if (!ret || sk_X509_NAME_ENTRY_num(rnm) <= 0)
98 * Since its a name fragment can't have more than one RDNSequence
100 if (sk_X509_NAME_ENTRY_value(rnm,
101 sk_X509_NAME_ENTRY_num(rnm) - 1)->set) {
102 ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_MULTIPLE_RDNS);
109 ERR_raise(ERR_LIB_X509V3, X509V3_R_DISTPOINT_ALREADY_SET);
113 *pdp = DIST_POINT_NAME_new();
118 (*pdp)->name.fullname = fnm;
121 (*pdp)->name.relativename = rnm;
127 sk_GENERAL_NAME_pop_free(fnm, GENERAL_NAME_free);
128 sk_X509_NAME_ENTRY_pop_free(rnm, X509_NAME_ENTRY_free);
132 static const BIT_STRING_BITNAME reason_flags[] = {
133 {0, "Unused", "unused"},
134 {1, "Key Compromise", "keyCompromise"},
135 {2, "CA Compromise", "CACompromise"},
136 {3, "Affiliation Changed", "affiliationChanged"},
137 {4, "Superseded", "superseded"},
138 {5, "Cessation Of Operation", "cessationOfOperation"},
139 {6, "Certificate Hold", "certificateHold"},
140 {7, "Privilege Withdrawn", "privilegeWithdrawn"},
141 {8, "AA Compromise", "AACompromise"},
145 static int set_reasons(ASN1_BIT_STRING **preas, char *value)
147 STACK_OF(CONF_VALUE) *rsk = NULL;
148 const BIT_STRING_BITNAME *pbn;
151 rsk = X509V3_parse_list(value);
156 for (i = 0; i < sk_CONF_VALUE_num(rsk); i++) {
157 bnam = sk_CONF_VALUE_value(rsk, i)->name;
158 if (*preas == NULL) {
159 *preas = ASN1_BIT_STRING_new();
163 for (pbn = reason_flags; pbn->lname; pbn++) {
164 if (strcmp(pbn->sname, bnam) == 0) {
165 if (!ASN1_BIT_STRING_set_bit(*preas, pbn->bitnum, 1))
170 if (pbn->lname == NULL)
176 sk_CONF_VALUE_pop_free(rsk, X509V3_conf_free);
180 static int print_reasons(BIO *out, const char *rname,
181 ASN1_BIT_STRING *rflags, int indent)
184 const BIT_STRING_BITNAME *pbn;
185 BIO_printf(out, "%*s%s:\n%*s", indent, "", rname, indent + 2, "");
186 for (pbn = reason_flags; pbn->lname; pbn++) {
187 if (ASN1_BIT_STRING_get_bit(rflags, pbn->bitnum)) {
192 BIO_puts(out, pbn->lname);
196 BIO_puts(out, "<EMPTY>\n");
202 static DIST_POINT *crldp_from_section(X509V3_CTX *ctx,
203 STACK_OF(CONF_VALUE) *nval)
207 DIST_POINT *point = DIST_POINT_new();
211 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
213 cnf = sk_CONF_VALUE_value(nval, i);
214 ret = set_dist_point_name(&point->distpoint, ctx, cnf);
219 if (strcmp(cnf->name, "reasons") == 0) {
220 if (!set_reasons(&point->reasons, cnf->value))
222 } else if (strcmp(cnf->name, "CRLissuer") == 0) {
223 point->CRLissuer = gnames_from_sectname(ctx, cnf->value);
224 if (point->CRLissuer == NULL)
232 DIST_POINT_free(point);
236 static void *v2i_crld(const X509V3_EXT_METHOD *method,
237 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
239 STACK_OF(DIST_POINT) *crld;
240 GENERAL_NAMES *gens = NULL;
241 GENERAL_NAME *gen = NULL;
243 const int num = sk_CONF_VALUE_num(nval);
246 crld = sk_DIST_POINT_new_reserve(NULL, num);
249 for (i = 0; i < num; i++) {
252 cnf = sk_CONF_VALUE_value(nval, i);
253 if (cnf->value == NULL) {
254 STACK_OF(CONF_VALUE) *dpsect;
255 dpsect = X509V3_get_section(ctx, cnf->name);
258 point = crldp_from_section(ctx, dpsect);
259 X509V3_section_free(ctx, dpsect);
262 sk_DIST_POINT_push(crld, point); /* no failure as it was reserved */
264 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
266 if ((gens = GENERAL_NAMES_new()) == NULL)
268 if (!sk_GENERAL_NAME_push(gens, gen))
271 if ((point = DIST_POINT_new()) == NULL)
273 sk_DIST_POINT_push(crld, point); /* no failure as it was reserved */
274 if ((point->distpoint = DIST_POINT_NAME_new()) == NULL)
276 point->distpoint->name.fullname = gens;
277 point->distpoint->type = 0;
284 ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
286 GENERAL_NAME_free(gen);
287 GENERAL_NAMES_free(gens);
288 sk_DIST_POINT_pop_free(crld, DIST_POINT_free);
292 static int dpn_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
295 DIST_POINT_NAME *dpn = (DIST_POINT_NAME *)*pval;
298 case ASN1_OP_NEW_POST:
302 case ASN1_OP_FREE_POST:
303 X509_NAME_free(dpn->dpname);
310 ASN1_CHOICE_cb(DIST_POINT_NAME, dpn_cb) = {
311 ASN1_IMP_SEQUENCE_OF(DIST_POINT_NAME, name.fullname, GENERAL_NAME, 0),
312 ASN1_IMP_SET_OF(DIST_POINT_NAME, name.relativename, X509_NAME_ENTRY, 1)
313 } ASN1_CHOICE_END_cb(DIST_POINT_NAME, DIST_POINT_NAME, type)
316 IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT_NAME)
318 ASN1_SEQUENCE(DIST_POINT) = {
319 ASN1_EXP_OPT(DIST_POINT, distpoint, DIST_POINT_NAME, 0),
320 ASN1_IMP_OPT(DIST_POINT, reasons, ASN1_BIT_STRING, 1),
321 ASN1_IMP_SEQUENCE_OF_OPT(DIST_POINT, CRLissuer, GENERAL_NAME, 2)
322 } ASN1_SEQUENCE_END(DIST_POINT)
324 IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT)
326 ASN1_ITEM_TEMPLATE(CRL_DIST_POINTS) =
327 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CRLDistributionPoints, DIST_POINT)
328 ASN1_ITEM_TEMPLATE_END(CRL_DIST_POINTS)
330 IMPLEMENT_ASN1_FUNCTIONS(CRL_DIST_POINTS)
332 ASN1_SEQUENCE(ISSUING_DIST_POINT) = {
333 ASN1_EXP_OPT(ISSUING_DIST_POINT, distpoint, DIST_POINT_NAME, 0),
334 ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyuser, ASN1_FBOOLEAN, 1),
335 ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyCA, ASN1_FBOOLEAN, 2),
336 ASN1_IMP_OPT(ISSUING_DIST_POINT, onlysomereasons, ASN1_BIT_STRING, 3),
337 ASN1_IMP_OPT(ISSUING_DIST_POINT, indirectCRL, ASN1_FBOOLEAN, 4),
338 ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyattr, ASN1_FBOOLEAN, 5)
339 } ASN1_SEQUENCE_END(ISSUING_DIST_POINT)
341 IMPLEMENT_ASN1_FUNCTIONS(ISSUING_DIST_POINT)
343 static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out,
345 static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
346 STACK_OF(CONF_VALUE) *nval);
348 const X509V3_EXT_METHOD ossl_v3_idp = {
349 NID_issuing_distribution_point, X509V3_EXT_MULTILINE,
350 ASN1_ITEM_ref(ISSUING_DIST_POINT),
359 static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
360 STACK_OF(CONF_VALUE) *nval)
362 ISSUING_DIST_POINT *idp = NULL;
366 idp = ISSUING_DIST_POINT_new();
369 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
370 cnf = sk_CONF_VALUE_value(nval, i);
373 ret = set_dist_point_name(&idp->distpoint, ctx, cnf);
378 if (strcmp(name, "onlyuser") == 0) {
379 if (!X509V3_get_value_bool(cnf, &idp->onlyuser))
381 } else if (strcmp(name, "onlyCA") == 0) {
382 if (!X509V3_get_value_bool(cnf, &idp->onlyCA))
384 } else if (strcmp(name, "onlyAA") == 0) {
385 if (!X509V3_get_value_bool(cnf, &idp->onlyattr))
387 } else if (strcmp(name, "indirectCRL") == 0) {
388 if (!X509V3_get_value_bool(cnf, &idp->indirectCRL))
390 } else if (strcmp(name, "onlysomereasons") == 0) {
391 if (!set_reasons(&idp->onlysomereasons, val))
394 ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_NAME);
395 X509V3_conf_add_error_name_value(cnf);
402 ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
404 ISSUING_DIST_POINT_free(idp);
408 static int print_gens(BIO *out, STACK_OF(GENERAL_NAME) *gens, int indent)
411 for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
414 BIO_printf(out, "%*s", indent + 2, "");
415 GENERAL_NAME_print(out, sk_GENERAL_NAME_value(gens, i));
420 static int print_distpoint(BIO *out, DIST_POINT_NAME *dpn, int indent)
422 if (dpn->type == 0) {
423 BIO_printf(out, "%*sFull Name:\n", indent, "");
424 print_gens(out, dpn->name.fullname, indent);
427 ntmp.entries = dpn->name.relativename;
428 BIO_printf(out, "%*sRelative Name:\n%*s", indent, "", indent + 2, "");
429 X509_NAME_print_ex(out, &ntmp, 0, XN_FLAG_ONELINE);
435 static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out,
438 ISSUING_DIST_POINT *idp = pidp;
440 print_distpoint(out, idp->distpoint, indent);
441 if (idp->onlyuser > 0)
442 BIO_printf(out, "%*sOnly User Certificates\n", indent, "");
444 BIO_printf(out, "%*sOnly CA Certificates\n", indent, "");
445 if (idp->indirectCRL > 0)
446 BIO_printf(out, "%*sIndirect CRL\n", indent, "");
447 if (idp->onlysomereasons)
448 print_reasons(out, "Only Some Reasons", idp->onlysomereasons, indent);
449 if (idp->onlyattr > 0)
450 BIO_printf(out, "%*sOnly Attribute Certificates\n", indent, "");
451 if (!idp->distpoint && (idp->onlyuser <= 0) && (idp->onlyCA <= 0)
452 && (idp->indirectCRL <= 0) && !idp->onlysomereasons
453 && (idp->onlyattr <= 0))
454 BIO_printf(out, "%*s<EMPTY>\n", indent, "");
459 static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
462 STACK_OF(DIST_POINT) *crld = pcrldp;
465 for (i = 0; i < sk_DIST_POINT_num(crld); i++) {
468 point = sk_DIST_POINT_value(crld, i);
469 if (point->distpoint)
470 print_distpoint(out, point->distpoint, indent);
472 print_reasons(out, "Reasons", point->reasons, indent);
473 if (point->CRLissuer) {
474 BIO_printf(out, "%*sCRL Issuer:\n", indent, "");
475 print_gens(out, point->CRLissuer, indent);
481 /* Append any nameRelativeToCRLIssuer in dpn to iname, set in dpn->dpname */
482 int DIST_POINT_set_dpname(DIST_POINT_NAME *dpn, const X509_NAME *iname)
485 STACK_OF(X509_NAME_ENTRY) *frag;
488 if (dpn == NULL || dpn->type != 1)
490 frag = dpn->name.relativename;
491 X509_NAME_free(dpn->dpname); /* just in case it was already set */
492 dpn->dpname = X509_NAME_dup(iname);
493 if (dpn->dpname == NULL)
495 for (i = 0; i < sk_X509_NAME_ENTRY_num(frag); i++) {
496 ne = sk_X509_NAME_ENTRY_value(frag, i);
497 if (!X509_NAME_add_entry(dpn->dpname, ne, -1, i ? 0 : 1))
500 /* generate cached encoding of name */
501 if (i2d_X509_NAME(dpn->dpname, NULL) >= 0)
505 X509_NAME_free(dpn->dpname);