2 * Copyright 1999-2021 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 (strncmp(cnf
->name
, "fullname", 9) == 0) {
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
);
86 ERR_raise(ERR_LIB_X509V3
, X509V3_R_SECTION_NOT_FOUND
);
89 ret
= X509V3_NAME_from_section(nm
, dnsect
, MBSTRING_ASC
);
90 X509V3_section_free(ctx
, dnsect
);
94 if (!ret
|| sk_X509_NAME_ENTRY_num(rnm
) <= 0)
97 * Since its a name fragment can't have more than one RDNSequence
99 if (sk_X509_NAME_ENTRY_value(rnm
,
100 sk_X509_NAME_ENTRY_num(rnm
) - 1)->set
) {
101 ERR_raise(ERR_LIB_X509V3
, X509V3_R_INVALID_MULTIPLE_RDNS
);
108 ERR_raise(ERR_LIB_X509V3
, X509V3_R_DISTPOINT_ALREADY_SET
);
112 *pdp
= DIST_POINT_NAME_new();
117 (*pdp
)->name
.fullname
= fnm
;
120 (*pdp
)->name
.relativename
= rnm
;
126 sk_GENERAL_NAME_pop_free(fnm
, GENERAL_NAME_free
);
127 sk_X509_NAME_ENTRY_pop_free(rnm
, X509_NAME_ENTRY_free
);
131 static const BIT_STRING_BITNAME reason_flags
[] = {
132 {0, "Unused", "unused"},
133 {1, "Key Compromise", "keyCompromise"},
134 {2, "CA Compromise", "CACompromise"},
135 {3, "Affiliation Changed", "affiliationChanged"},
136 {4, "Superseded", "superseded"},
137 {5, "Cessation Of Operation", "cessationOfOperation"},
138 {6, "Certificate Hold", "certificateHold"},
139 {7, "Privilege Withdrawn", "privilegeWithdrawn"},
140 {8, "AA Compromise", "AACompromise"},
144 static int set_reasons(ASN1_BIT_STRING
**preas
, char *value
)
146 STACK_OF(CONF_VALUE
) *rsk
= NULL
;
147 const BIT_STRING_BITNAME
*pbn
;
150 rsk
= X509V3_parse_list(value
);
155 for (i
= 0; i
< sk_CONF_VALUE_num(rsk
); i
++) {
156 bnam
= sk_CONF_VALUE_value(rsk
, i
)->name
;
157 if (*preas
== NULL
) {
158 *preas
= ASN1_BIT_STRING_new();
162 for (pbn
= reason_flags
; pbn
->lname
; pbn
++) {
163 if (strcmp(pbn
->sname
, bnam
) == 0) {
164 if (!ASN1_BIT_STRING_set_bit(*preas
, pbn
->bitnum
, 1))
169 if (pbn
->lname
== NULL
)
175 sk_CONF_VALUE_pop_free(rsk
, X509V3_conf_free
);
179 static int print_reasons(BIO
*out
, const char *rname
,
180 ASN1_BIT_STRING
*rflags
, int indent
)
183 const BIT_STRING_BITNAME
*pbn
;
184 BIO_printf(out
, "%*s%s:\n%*s", indent
, "", rname
, indent
+ 2, "");
185 for (pbn
= reason_flags
; pbn
->lname
; pbn
++) {
186 if (ASN1_BIT_STRING_get_bit(rflags
, pbn
->bitnum
)) {
191 BIO_puts(out
, pbn
->lname
);
195 BIO_puts(out
, "<EMPTY>\n");
201 static DIST_POINT
*crldp_from_section(X509V3_CTX
*ctx
,
202 STACK_OF(CONF_VALUE
) *nval
)
206 DIST_POINT
*point
= DIST_POINT_new();
210 for (i
= 0; i
< sk_CONF_VALUE_num(nval
); i
++) {
212 cnf
= sk_CONF_VALUE_value(nval
, i
);
213 ret
= set_dist_point_name(&point
->distpoint
, ctx
, cnf
);
218 if (strcmp(cnf
->name
, "reasons") == 0) {
219 if (!set_reasons(&point
->reasons
, cnf
->value
))
221 } else if (strcmp(cnf
->name
, "CRLissuer") == 0) {
222 point
->CRLissuer
= gnames_from_sectname(ctx
, cnf
->value
);
223 if (point
->CRLissuer
== NULL
)
231 DIST_POINT_free(point
);
235 static void *v2i_crld(const X509V3_EXT_METHOD
*method
,
236 X509V3_CTX
*ctx
, STACK_OF(CONF_VALUE
) *nval
)
238 STACK_OF(DIST_POINT
) *crld
;
239 GENERAL_NAMES
*gens
= NULL
;
240 GENERAL_NAME
*gen
= NULL
;
242 const int num
= sk_CONF_VALUE_num(nval
);
245 crld
= sk_DIST_POINT_new_reserve(NULL
, num
);
248 for (i
= 0; i
< num
; i
++) {
251 cnf
= sk_CONF_VALUE_value(nval
, i
);
252 if (cnf
->value
== NULL
) {
253 STACK_OF(CONF_VALUE
) *dpsect
;
254 dpsect
= X509V3_get_section(ctx
, cnf
->name
);
257 point
= crldp_from_section(ctx
, dpsect
);
258 X509V3_section_free(ctx
, dpsect
);
261 sk_DIST_POINT_push(crld
, point
); /* no failure as it was reserved */
263 if ((gen
= v2i_GENERAL_NAME(method
, ctx
, cnf
)) == NULL
)
265 if ((gens
= GENERAL_NAMES_new()) == NULL
)
267 if (!sk_GENERAL_NAME_push(gens
, gen
))
270 if ((point
= DIST_POINT_new()) == NULL
)
272 sk_DIST_POINT_push(crld
, point
); /* no failure as it was reserved */
273 if ((point
->distpoint
= DIST_POINT_NAME_new()) == NULL
)
275 point
->distpoint
->name
.fullname
= gens
;
276 point
->distpoint
->type
= 0;
283 ERR_raise(ERR_LIB_X509V3
, ERR_R_MALLOC_FAILURE
);
285 GENERAL_NAME_free(gen
);
286 GENERAL_NAMES_free(gens
);
287 sk_DIST_POINT_pop_free(crld
, DIST_POINT_free
);
291 static int dpn_cb(int operation
, ASN1_VALUE
**pval
, const ASN1_ITEM
*it
,
294 DIST_POINT_NAME
*dpn
= (DIST_POINT_NAME
*)*pval
;
297 case ASN1_OP_NEW_POST
:
301 case ASN1_OP_FREE_POST
:
302 X509_NAME_free(dpn
->dpname
);
309 ASN1_CHOICE_cb(DIST_POINT_NAME
, dpn_cb
) = {
310 ASN1_IMP_SEQUENCE_OF(DIST_POINT_NAME
, name
.fullname
, GENERAL_NAME
, 0),
311 ASN1_IMP_SET_OF(DIST_POINT_NAME
, name
.relativename
, X509_NAME_ENTRY
, 1)
312 } ASN1_CHOICE_END_cb(DIST_POINT_NAME
, DIST_POINT_NAME
, type
)
315 IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT_NAME
)
317 ASN1_SEQUENCE(DIST_POINT
) = {
318 ASN1_EXP_OPT(DIST_POINT
, distpoint
, DIST_POINT_NAME
, 0),
319 ASN1_IMP_OPT(DIST_POINT
, reasons
, ASN1_BIT_STRING
, 1),
320 ASN1_IMP_SEQUENCE_OF_OPT(DIST_POINT
, CRLissuer
, GENERAL_NAME
, 2)
321 } ASN1_SEQUENCE_END(DIST_POINT
)
323 IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT
)
325 ASN1_ITEM_TEMPLATE(CRL_DIST_POINTS
) =
326 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF
, 0, CRLDistributionPoints
, DIST_POINT
)
327 ASN1_ITEM_TEMPLATE_END(CRL_DIST_POINTS
)
329 IMPLEMENT_ASN1_FUNCTIONS(CRL_DIST_POINTS
)
331 ASN1_SEQUENCE(ISSUING_DIST_POINT
) = {
332 ASN1_EXP_OPT(ISSUING_DIST_POINT
, distpoint
, DIST_POINT_NAME
, 0),
333 ASN1_IMP_OPT(ISSUING_DIST_POINT
, onlyuser
, ASN1_FBOOLEAN
, 1),
334 ASN1_IMP_OPT(ISSUING_DIST_POINT
, onlyCA
, ASN1_FBOOLEAN
, 2),
335 ASN1_IMP_OPT(ISSUING_DIST_POINT
, onlysomereasons
, ASN1_BIT_STRING
, 3),
336 ASN1_IMP_OPT(ISSUING_DIST_POINT
, indirectCRL
, ASN1_FBOOLEAN
, 4),
337 ASN1_IMP_OPT(ISSUING_DIST_POINT
, onlyattr
, ASN1_FBOOLEAN
, 5)
338 } ASN1_SEQUENCE_END(ISSUING_DIST_POINT
)
340 IMPLEMENT_ASN1_FUNCTIONS(ISSUING_DIST_POINT
)
342 static int i2r_idp(const X509V3_EXT_METHOD
*method
, void *pidp
, BIO
*out
,
344 static void *v2i_idp(const X509V3_EXT_METHOD
*method
, X509V3_CTX
*ctx
,
345 STACK_OF(CONF_VALUE
) *nval
);
347 const X509V3_EXT_METHOD ossl_v3_idp
= {
348 NID_issuing_distribution_point
, X509V3_EXT_MULTILINE
,
349 ASN1_ITEM_ref(ISSUING_DIST_POINT
),
358 static void *v2i_idp(const X509V3_EXT_METHOD
*method
, X509V3_CTX
*ctx
,
359 STACK_OF(CONF_VALUE
) *nval
)
361 ISSUING_DIST_POINT
*idp
= NULL
;
365 idp
= ISSUING_DIST_POINT_new();
368 for (i
= 0; i
< sk_CONF_VALUE_num(nval
); i
++) {
369 cnf
= sk_CONF_VALUE_value(nval
, i
);
372 ret
= set_dist_point_name(&idp
->distpoint
, ctx
, cnf
);
377 if (strcmp(name
, "onlyuser") == 0) {
378 if (!X509V3_get_value_bool(cnf
, &idp
->onlyuser
))
380 } else if (strcmp(name
, "onlyCA") == 0) {
381 if (!X509V3_get_value_bool(cnf
, &idp
->onlyCA
))
383 } else if (strcmp(name
, "onlyAA") == 0) {
384 if (!X509V3_get_value_bool(cnf
, &idp
->onlyattr
))
386 } else if (strcmp(name
, "indirectCRL") == 0) {
387 if (!X509V3_get_value_bool(cnf
, &idp
->indirectCRL
))
389 } else if (strcmp(name
, "onlysomereasons") == 0) {
390 if (!set_reasons(&idp
->onlysomereasons
, val
))
393 ERR_raise(ERR_LIB_X509V3
, X509V3_R_INVALID_NAME
);
394 X509V3_conf_add_error_name_value(cnf
);
401 ERR_raise(ERR_LIB_X509V3
, ERR_R_MALLOC_FAILURE
);
403 ISSUING_DIST_POINT_free(idp
);
407 static int print_gens(BIO
*out
, STACK_OF(GENERAL_NAME
) *gens
, int indent
)
410 for (i
= 0; i
< sk_GENERAL_NAME_num(gens
); i
++) {
413 BIO_printf(out
, "%*s", indent
+ 2, "");
414 GENERAL_NAME_print(out
, sk_GENERAL_NAME_value(gens
, i
));
419 static int print_distpoint(BIO
*out
, DIST_POINT_NAME
*dpn
, int indent
)
421 if (dpn
->type
== 0) {
422 BIO_printf(out
, "%*sFull Name:\n", indent
, "");
423 print_gens(out
, dpn
->name
.fullname
, indent
);
426 ntmp
.entries
= dpn
->name
.relativename
;
427 BIO_printf(out
, "%*sRelative Name:\n%*s", indent
, "", indent
+ 2, "");
428 X509_NAME_print_ex(out
, &ntmp
, 0, XN_FLAG_ONELINE
);
434 static int i2r_idp(const X509V3_EXT_METHOD
*method
, void *pidp
, BIO
*out
,
437 ISSUING_DIST_POINT
*idp
= pidp
;
439 print_distpoint(out
, idp
->distpoint
, indent
);
440 if (idp
->onlyuser
> 0)
441 BIO_printf(out
, "%*sOnly User Certificates\n", indent
, "");
443 BIO_printf(out
, "%*sOnly CA Certificates\n", indent
, "");
444 if (idp
->indirectCRL
> 0)
445 BIO_printf(out
, "%*sIndirect CRL\n", indent
, "");
446 if (idp
->onlysomereasons
)
447 print_reasons(out
, "Only Some Reasons", idp
->onlysomereasons
, indent
);
448 if (idp
->onlyattr
> 0)
449 BIO_printf(out
, "%*sOnly Attribute Certificates\n", indent
, "");
450 if (!idp
->distpoint
&& (idp
->onlyuser
<= 0) && (idp
->onlyCA
<= 0)
451 && (idp
->indirectCRL
<= 0) && !idp
->onlysomereasons
452 && (idp
->onlyattr
<= 0))
453 BIO_printf(out
, "%*s<EMPTY>\n", indent
, "");
458 static int i2r_crldp(const X509V3_EXT_METHOD
*method
, void *pcrldp
, BIO
*out
,
461 STACK_OF(DIST_POINT
) *crld
= pcrldp
;
464 for (i
= 0; i
< sk_DIST_POINT_num(crld
); i
++) {
467 point
= sk_DIST_POINT_value(crld
, i
);
468 if (point
->distpoint
)
469 print_distpoint(out
, point
->distpoint
, indent
);
471 print_reasons(out
, "Reasons", point
->reasons
, indent
);
472 if (point
->CRLissuer
) {
473 BIO_printf(out
, "%*sCRL Issuer:\n", indent
, "");
474 print_gens(out
, point
->CRLissuer
, indent
);
480 /* Append any nameRelativeToCRLIssuer in dpn to iname, set in dpn->dpname */
481 int DIST_POINT_set_dpname(DIST_POINT_NAME
*dpn
, const X509_NAME
*iname
)
484 STACK_OF(X509_NAME_ENTRY
) *frag
;
487 if (dpn
== NULL
|| dpn
->type
!= 1)
489 frag
= dpn
->name
.relativename
;
490 X509_NAME_free(dpn
->dpname
); /* just in case it was already set */
491 dpn
->dpname
= X509_NAME_dup(iname
);
492 if (dpn
->dpname
== NULL
)
494 for (i
= 0; i
< sk_X509_NAME_ENTRY_num(frag
); i
++) {
495 ne
= sk_X509_NAME_ENTRY_value(frag
, i
);
496 if (!X509_NAME_add_entry(dpn
->dpname
, ne
, -1, i
? 0 : 1))
499 /* generate cached encoding of name */
500 if (i2d_X509_NAME(dpn
->dpname
, NULL
) >= 0)
504 X509_NAME_free(dpn
->dpname
);