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source: vbox/trunk/src/libs/openssl-1.1.0g/crypto/x509v3/v3_alt.c@ 69890

Last change on this file since 69890 was 69890, checked in by vboxsync, 7 years ago

Added OpenSSL 1.1.0g with unneeded files removed, otherwise unmodified.
bugref:8070: src/libs maintenance
  • Property svn:eol-style set to native
File size: 16.1 KB
Line 
1/*
2 * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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
8 */
9
10#include <stdio.h>
11#include "internal/cryptlib.h"
12#include <openssl/conf.h>
13#include <openssl/x509v3.h>
14#include "ext_dat.h"
15
16static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
17 X509V3_CTX *ctx,
18 STACK_OF(CONF_VALUE) *nval);
19static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
20 X509V3_CTX *ctx,
21 STACK_OF(CONF_VALUE) *nval);
22static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p);
23static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens);
24static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx);
25static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx);
26
27const X509V3_EXT_METHOD v3_alt[3] = {
28 {NID_subject_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
29 0, 0, 0, 0,
30 0, 0,
31 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
32 (X509V3_EXT_V2I)v2i_subject_alt,
33 NULL, NULL, NULL},
34
35 {NID_issuer_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
36 0, 0, 0, 0,
37 0, 0,
38 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
39 (X509V3_EXT_V2I)v2i_issuer_alt,
40 NULL, NULL, NULL},
41
42 {NID_certificate_issuer, 0, ASN1_ITEM_ref(GENERAL_NAMES),
43 0, 0, 0, 0,
44 0, 0,
45 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
46 NULL, NULL, NULL, NULL},
47};
48
49STACK_OF(CONF_VALUE) *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method,
50 GENERAL_NAMES *gens,
51 STACK_OF(CONF_VALUE) *ret)
52{
53 int i;
54 GENERAL_NAME *gen;
55 for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
56 gen = sk_GENERAL_NAME_value(gens, i);
57 ret = i2v_GENERAL_NAME(method, gen, ret);
58 }
59 if (!ret)
60 return sk_CONF_VALUE_new_null();
61 return ret;
62}
63
64STACK_OF(CONF_VALUE) *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method,
65 GENERAL_NAME *gen,
66 STACK_OF(CONF_VALUE) *ret)
67{
68 unsigned char *p;
69 char oline[256], htmp[5];
70 int i;
71 switch (gen->type) {
72 case GEN_OTHERNAME:
73 if (!X509V3_add_value("othername", "<unsupported>", &ret))
74 return NULL;
75 break;
76
77 case GEN_X400:
78 if (!X509V3_add_value("X400Name", "<unsupported>", &ret))
79 return NULL;
80 break;
81
82 case GEN_EDIPARTY:
83 if (!X509V3_add_value("EdiPartyName", "<unsupported>", &ret))
84 return NULL;
85 break;
86
87 case GEN_EMAIL:
88 if (!X509V3_add_value_uchar("email", gen->d.ia5->data, &ret))
89 return NULL;
90 break;
91
92 case GEN_DNS:
93 if (!X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret))
94 return NULL;
95 break;
96
97 case GEN_URI:
98 if (!X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret))
99 return NULL;
100 break;
101
102 case GEN_DIRNAME:
103 if (X509_NAME_oneline(gen->d.dirn, oline, 256) == NULL
104 || !X509V3_add_value("DirName", oline, &ret))
105 return NULL;
106 break;
107
108 case GEN_IPADD:
109 p = gen->d.ip->data;
110 if (gen->d.ip->length == 4)
111 BIO_snprintf(oline, sizeof oline,
112 "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
113 else if (gen->d.ip->length == 16) {
114 oline[0] = 0;
115 for (i = 0; i < 8; i++) {
116 BIO_snprintf(htmp, sizeof htmp, "%X", p[0] << 8 | p[1]);
117 p += 2;
118 strcat(oline, htmp);
119 if (i != 7)
120 strcat(oline, ":");
121 }
122 } else {
123 if (!X509V3_add_value("IP Address", "<invalid>", &ret))
124 return NULL;
125 break;
126 }
127 if (!X509V3_add_value("IP Address", oline, &ret))
128 return NULL;
129 break;
130
131 case GEN_RID:
132 i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
133 if (!X509V3_add_value("Registered ID", oline, &ret))
134 return NULL;
135 break;
136 }
137 return ret;
138}
139
140int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen)
141{
142 unsigned char *p;
143 int i;
144 switch (gen->type) {
145 case GEN_OTHERNAME:
146 BIO_printf(out, "othername:<unsupported>");
147 break;
148
149 case GEN_X400:
150 BIO_printf(out, "X400Name:<unsupported>");
151 break;
152
153 case GEN_EDIPARTY:
154 /* Maybe fix this: it is supported now */
155 BIO_printf(out, "EdiPartyName:<unsupported>");
156 break;
157
158 case GEN_EMAIL:
159 BIO_printf(out, "email:%s", gen->d.ia5->data);
160 break;
161
162 case GEN_DNS:
163 BIO_printf(out, "DNS:%s", gen->d.ia5->data);
164 break;
165
166 case GEN_URI:
167 BIO_printf(out, "URI:%s", gen->d.ia5->data);
168 break;
169
170 case GEN_DIRNAME:
171 BIO_printf(out, "DirName:");
172 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
173 break;
174
175 case GEN_IPADD:
176 p = gen->d.ip->data;
177 if (gen->d.ip->length == 4)
178 BIO_printf(out, "IP Address:%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
179 else if (gen->d.ip->length == 16) {
180 BIO_printf(out, "IP Address");
181 for (i = 0; i < 8; i++) {
182 BIO_printf(out, ":%X", p[0] << 8 | p[1]);
183 p += 2;
184 }
185 BIO_puts(out, "\n");
186 } else {
187 BIO_printf(out, "IP Address:<invalid>");
188 break;
189 }
190 break;
191
192 case GEN_RID:
193 BIO_printf(out, "Registered ID:");
194 i2a_ASN1_OBJECT(out, gen->d.rid);
195 break;
196 }
197 return 1;
198}
199
200static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
201 X509V3_CTX *ctx,
202 STACK_OF(CONF_VALUE) *nval)
203{
204 GENERAL_NAMES *gens = NULL;
205 CONF_VALUE *cnf;
206 int i;
207
208 if ((gens = sk_GENERAL_NAME_new_null()) == NULL) {
209 X509V3err(X509V3_F_V2I_ISSUER_ALT, ERR_R_MALLOC_FAILURE);
210 return NULL;
211 }
212 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
213 cnf = sk_CONF_VALUE_value(nval, i);
214 if (!name_cmp(cnf->name, "issuer")
215 && cnf->value && strcmp(cnf->value, "copy") == 0) {
216 if (!copy_issuer(ctx, gens))
217 goto err;
218 } else {
219 GENERAL_NAME *gen;
220 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
221 goto err;
222 sk_GENERAL_NAME_push(gens, gen);
223 }
224 }
225 return gens;
226 err:
227 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
228 return NULL;
229}
230
231/* Append subject altname of issuer to issuer alt name of subject */
232
233static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
234{
235 GENERAL_NAMES *ialt;
236 GENERAL_NAME *gen;
237 X509_EXTENSION *ext;
238 int i;
239
240 if (ctx && (ctx->flags == CTX_TEST))
241 return 1;
242 if (!ctx || !ctx->issuer_cert) {
243 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_NO_ISSUER_DETAILS);
244 goto err;
245 }
246 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
247 if (i < 0)
248 return 1;
249 if ((ext = X509_get_ext(ctx->issuer_cert, i)) == NULL
250 || (ialt = X509V3_EXT_d2i(ext)) == NULL) {
251 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_ISSUER_DECODE_ERROR);
252 goto err;
253 }
254
255 for (i = 0; i < sk_GENERAL_NAME_num(ialt); i++) {
256 gen = sk_GENERAL_NAME_value(ialt, i);
257 if (!sk_GENERAL_NAME_push(gens, gen)) {
258 X509V3err(X509V3_F_COPY_ISSUER, ERR_R_MALLOC_FAILURE);
259 goto err;
260 }
261 }
262 sk_GENERAL_NAME_free(ialt);
263
264 return 1;
265
266 err:
267 return 0;
268
269}
270
271static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
272 X509V3_CTX *ctx,
273 STACK_OF(CONF_VALUE) *nval)
274{
275 GENERAL_NAMES *gens = NULL;
276 CONF_VALUE *cnf;
277 int i;
278
279 if ((gens = sk_GENERAL_NAME_new_null()) == NULL) {
280 X509V3err(X509V3_F_V2I_SUBJECT_ALT, ERR_R_MALLOC_FAILURE);
281 return NULL;
282 }
283 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
284 cnf = sk_CONF_VALUE_value(nval, i);
285 if (!name_cmp(cnf->name, "email")
286 && cnf->value && strcmp(cnf->value, "copy") == 0) {
287 if (!copy_email(ctx, gens, 0))
288 goto err;
289 } else if (!name_cmp(cnf->name, "email")
290 && cnf->value && strcmp(cnf->value, "move") == 0) {
291 if (!copy_email(ctx, gens, 1))
292 goto err;
293 } else {
294 GENERAL_NAME *gen;
295 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
296 goto err;
297 sk_GENERAL_NAME_push(gens, gen);
298 }
299 }
300 return gens;
301 err:
302 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
303 return NULL;
304}
305
306/*
307 * Copy any email addresses in a certificate or request to GENERAL_NAMES
308 */
309
310static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
311{
312 X509_NAME *nm;
313 ASN1_IA5STRING *email = NULL;
314 X509_NAME_ENTRY *ne;
315 GENERAL_NAME *gen = NULL;
316 int i;
317 if (ctx != NULL && ctx->flags == CTX_TEST)
318 return 1;
319 if (!ctx || (!ctx->subject_cert && !ctx->subject_req)) {
320 X509V3err(X509V3_F_COPY_EMAIL, X509V3_R_NO_SUBJECT_DETAILS);
321 goto err;
322 }
323 /* Find the subject name */
324 if (ctx->subject_cert)
325 nm = X509_get_subject_name(ctx->subject_cert);
326 else
327 nm = X509_REQ_get_subject_name(ctx->subject_req);
328
329 /* Now add any email address(es) to STACK */
330 i = -1;
331 while ((i = X509_NAME_get_index_by_NID(nm,
332 NID_pkcs9_emailAddress, i)) >= 0) {
333 ne = X509_NAME_get_entry(nm, i);
334 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
335 if (move_p) {
336 X509_NAME_delete_entry(nm, i);
337 X509_NAME_ENTRY_free(ne);
338 i--;
339 }
340 if (email == NULL || (gen = GENERAL_NAME_new()) == NULL) {
341 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
342 goto err;
343 }
344 gen->d.ia5 = email;
345 email = NULL;
346 gen->type = GEN_EMAIL;
347 if (!sk_GENERAL_NAME_push(gens, gen)) {
348 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
349 goto err;
350 }
351 gen = NULL;
352 }
353
354 return 1;
355
356 err:
357 GENERAL_NAME_free(gen);
358 ASN1_IA5STRING_free(email);
359 return 0;
360
361}
362
363GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method,
364 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
365{
366 GENERAL_NAME *gen;
367 GENERAL_NAMES *gens = NULL;
368 CONF_VALUE *cnf;
369 int i;
370
371 if ((gens = sk_GENERAL_NAME_new_null()) == NULL) {
372 X509V3err(X509V3_F_V2I_GENERAL_NAMES, ERR_R_MALLOC_FAILURE);
373 return NULL;
374 }
375 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
376 cnf = sk_CONF_VALUE_value(nval, i);
377 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
378 goto err;
379 sk_GENERAL_NAME_push(gens, gen);
380 }
381 return gens;
382 err:
383 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
384 return NULL;
385}
386
387GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method,
388 X509V3_CTX *ctx, CONF_VALUE *cnf)
389{
390 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
391}
392
393GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out,
394 const X509V3_EXT_METHOD *method,
395 X509V3_CTX *ctx, int gen_type, const char *value,
396 int is_nc)
397{
398 char is_string = 0;
399 GENERAL_NAME *gen = NULL;
400
401 if (!value) {
402 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_MISSING_VALUE);
403 return NULL;
404 }
405
406 if (out)
407 gen = out;
408 else {
409 gen = GENERAL_NAME_new();
410 if (gen == NULL) {
411 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
412 return NULL;
413 }
414 }
415
416 switch (gen_type) {
417 case GEN_URI:
418 case GEN_EMAIL:
419 case GEN_DNS:
420 is_string = 1;
421 break;
422
423 case GEN_RID:
424 {
425 ASN1_OBJECT *obj;
426 if ((obj = OBJ_txt2obj(value, 0)) == NULL) {
427 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_OBJECT);
428 ERR_add_error_data(2, "value=", value);
429 goto err;
430 }
431 gen->d.rid = obj;
432 }
433 break;
434
435 case GEN_IPADD:
436 if (is_nc)
437 gen->d.ip = a2i_IPADDRESS_NC(value);
438 else
439 gen->d.ip = a2i_IPADDRESS(value);
440 if (gen->d.ip == NULL) {
441 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_IP_ADDRESS);
442 ERR_add_error_data(2, "value=", value);
443 goto err;
444 }
445 break;
446
447 case GEN_DIRNAME:
448 if (!do_dirname(gen, value, ctx)) {
449 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_DIRNAME_ERROR);
450 goto err;
451 }
452 break;
453
454 case GEN_OTHERNAME:
455 if (!do_othername(gen, value, ctx)) {
456 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_OTHERNAME_ERROR);
457 goto err;
458 }
459 break;
460 default:
461 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_UNSUPPORTED_TYPE);
462 goto err;
463 }
464
465 if (is_string) {
466 if ((gen->d.ia5 = ASN1_IA5STRING_new()) == NULL ||
467 !ASN1_STRING_set(gen->d.ia5, (unsigned char *)value,
468 strlen(value))) {
469 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
470 goto err;
471 }
472 }
473
474 gen->type = gen_type;
475
476 return gen;
477
478 err:
479 if (!out)
480 GENERAL_NAME_free(gen);
481 return NULL;
482}
483
484GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
485 const X509V3_EXT_METHOD *method,
486 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc)
487{
488 int type;
489
490 char *name, *value;
491
492 name = cnf->name;
493 value = cnf->value;
494
495 if (!value) {
496 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_MISSING_VALUE);
497 return NULL;
498 }
499
500 if (!name_cmp(name, "email"))
501 type = GEN_EMAIL;
502 else if (!name_cmp(name, "URI"))
503 type = GEN_URI;
504 else if (!name_cmp(name, "DNS"))
505 type = GEN_DNS;
506 else if (!name_cmp(name, "RID"))
507 type = GEN_RID;
508 else if (!name_cmp(name, "IP"))
509 type = GEN_IPADD;
510 else if (!name_cmp(name, "dirName"))
511 type = GEN_DIRNAME;
512 else if (!name_cmp(name, "otherName"))
513 type = GEN_OTHERNAME;
514 else {
515 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_UNSUPPORTED_OPTION);
516 ERR_add_error_data(2, "name=", name);
517 return NULL;
518 }
519
520 return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
521
522}
523
524static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
525{
526 char *objtmp = NULL, *p;
527 int objlen;
528
529 if ((p = strchr(value, ';')) == NULL)
530 return 0;
531 if ((gen->d.otherName = OTHERNAME_new()) == NULL)
532 return 0;
533 /*
534 * Free this up because we will overwrite it. no need to free type_id
535 * because it is static
536 */
537 ASN1_TYPE_free(gen->d.otherName->value);
538 if ((gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)) == NULL)
539 return 0;
540 objlen = p - value;
541 objtmp = OPENSSL_strndup(value, objlen);
542 if (objtmp == NULL)
543 return 0;
544 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
545 OPENSSL_free(objtmp);
546 if (!gen->d.otherName->type_id)
547 return 0;
548 return 1;
549}
550
551static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
552{
553 int ret = 0;
554 STACK_OF(CONF_VALUE) *sk = NULL;
555 X509_NAME *nm;
556
557 if ((nm = X509_NAME_new()) == NULL)
558 goto err;
559 sk = X509V3_get_section(ctx, value);
560 if (!sk) {
561 X509V3err(X509V3_F_DO_DIRNAME, X509V3_R_SECTION_NOT_FOUND);
562 ERR_add_error_data(2, "section=", value);
563 goto err;
564 }
565 /* FIXME: should allow other character types... */
566 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
567 if (!ret)
568 goto err;
569 gen->d.dirn = nm;
570
571err:
572 if (ret == 0)
573 X509_NAME_free(nm);
574 X509V3_section_free(ctx, sk);
575 return ret;
576}
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