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-rw-r--r--src/lib/libcrypto/x509v3/v3_utl.c535
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diff --git a/src/lib/libcrypto/x509v3/v3_utl.c b/src/lib/libcrypto/x509v3/v3_utl.c
deleted file mode 100644
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1/* v3_utl.c */
2/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999 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/* X509 v3 extension utilities */
59
60
61#include <stdio.h>
62#include <ctype.h>
63#include "cryptlib.h"
64#include <openssl/conf.h>
65#include <openssl/x509v3.h>
66
67static char *strip_spaces(char *name);
68static int sk_strcmp(const char * const *a, const char * const *b);
69static STACK *get_email(X509_NAME *name, GENERAL_NAMES *gens);
70static void str_free(void *str);
71static int append_ia5(STACK **sk, ASN1_IA5STRING *email);
72
73/* Add a CONF_VALUE name value pair to stack */
74
75int X509V3_add_value(const char *name, const char *value,
76 STACK_OF(CONF_VALUE) **extlist)
77{
78 CONF_VALUE *vtmp = NULL;
79 char *tname = NULL, *tvalue = NULL;
80 if(name && !(tname = BUF_strdup(name))) goto err;
81 if(value && !(tvalue = BUF_strdup(value))) goto err;
82 if(!(vtmp = (CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE)))) goto err;
83 if(!*extlist && !(*extlist = sk_CONF_VALUE_new_null())) goto err;
84 vtmp->section = NULL;
85 vtmp->name = tname;
86 vtmp->value = tvalue;
87 if(!sk_CONF_VALUE_push(*extlist, vtmp)) goto err;
88 return 1;
89 err:
90 X509V3err(X509V3_F_X509V3_ADD_VALUE,ERR_R_MALLOC_FAILURE);
91 if(vtmp) OPENSSL_free(vtmp);
92 if(tname) OPENSSL_free(tname);
93 if(tvalue) OPENSSL_free(tvalue);
94 return 0;
95}
96
97int X509V3_add_value_uchar(const char *name, const unsigned char *value,
98 STACK_OF(CONF_VALUE) **extlist)
99 {
100 return X509V3_add_value(name,(const char *)value,extlist);
101 }
102
103/* Free function for STACK_OF(CONF_VALUE) */
104
105void X509V3_conf_free(CONF_VALUE *conf)
106{
107 if(!conf) return;
108 if(conf->name) OPENSSL_free(conf->name);
109 if(conf->value) OPENSSL_free(conf->value);
110 if(conf->section) OPENSSL_free(conf->section);
111 OPENSSL_free(conf);
112}
113
114int X509V3_add_value_bool(const char *name, int asn1_bool,
115 STACK_OF(CONF_VALUE) **extlist)
116{
117 if(asn1_bool) return X509V3_add_value(name, "TRUE", extlist);
118 return X509V3_add_value(name, "FALSE", extlist);
119}
120
121int X509V3_add_value_bool_nf(char *name, int asn1_bool,
122 STACK_OF(CONF_VALUE) **extlist)
123{
124 if(asn1_bool) return X509V3_add_value(name, "TRUE", extlist);
125 return 1;
126}
127
128
129char *i2s_ASN1_ENUMERATED(X509V3_EXT_METHOD *method, ASN1_ENUMERATED *a)
130{
131 BIGNUM *bntmp = NULL;
132 char *strtmp = NULL;
133 if(!a) return NULL;
134 if(!(bntmp = ASN1_ENUMERATED_to_BN(a, NULL)) ||
135 !(strtmp = BN_bn2dec(bntmp)) )
136 X509V3err(X509V3_F_I2S_ASN1_ENUMERATED,ERR_R_MALLOC_FAILURE);
137 BN_free(bntmp);
138 return strtmp;
139}
140
141char *i2s_ASN1_INTEGER(X509V3_EXT_METHOD *method, ASN1_INTEGER *a)
142{
143 BIGNUM *bntmp = NULL;
144 char *strtmp = NULL;
145 if(!a) return NULL;
146 if(!(bntmp = ASN1_INTEGER_to_BN(a, NULL)) ||
147 !(strtmp = BN_bn2dec(bntmp)) )
148 X509V3err(X509V3_F_I2S_ASN1_INTEGER,ERR_R_MALLOC_FAILURE);
149 BN_free(bntmp);
150 return strtmp;
151}
152
153ASN1_INTEGER *s2i_ASN1_INTEGER(X509V3_EXT_METHOD *method, char *value)
154{
155 BIGNUM *bn = NULL;
156 ASN1_INTEGER *aint;
157 int isneg, ishex;
158 int ret;
159 bn = BN_new();
160 if (!value) {
161 X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_INVALID_NULL_VALUE);
162 return 0;
163 }
164 if (value[0] == '-') {
165 value++;
166 isneg = 1;
167 } else isneg = 0;
168
169 if (value[0] == '0' && ((value[1] == 'x') || (value[1] == 'X'))) {
170 value += 2;
171 ishex = 1;
172 } else ishex = 0;
173
174 if (ishex) ret = BN_hex2bn(&bn, value);
175 else ret = BN_dec2bn(&bn, value);
176
177 if (!ret) {
178 X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_BN_DEC2BN_ERROR);
179 return 0;
180 }
181
182 if (isneg && BN_is_zero(bn)) isneg = 0;
183
184 aint = BN_to_ASN1_INTEGER(bn, NULL);
185 BN_free(bn);
186 if (!aint) {
187 X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_BN_TO_ASN1_INTEGER_ERROR);
188 return 0;
189 }
190 if (isneg) aint->type |= V_ASN1_NEG;
191 return aint;
192}
193
194int X509V3_add_value_int(const char *name, ASN1_INTEGER *aint,
195 STACK_OF(CONF_VALUE) **extlist)
196{
197 char *strtmp;
198 int ret;
199 if(!aint) return 1;
200 if(!(strtmp = i2s_ASN1_INTEGER(NULL, aint))) return 0;
201 ret = X509V3_add_value(name, strtmp, extlist);
202 OPENSSL_free(strtmp);
203 return ret;
204}
205
206int X509V3_get_value_bool(CONF_VALUE *value, int *asn1_bool)
207{
208 char *btmp;
209 if(!(btmp = value->value)) goto err;
210 if(!strcmp(btmp, "TRUE") || !strcmp(btmp, "true")
211 || !strcmp(btmp, "Y") || !strcmp(btmp, "y")
212 || !strcmp(btmp, "YES") || !strcmp(btmp, "yes")) {
213 *asn1_bool = 0xff;
214 return 1;
215 } else if(!strcmp(btmp, "FALSE") || !strcmp(btmp, "false")
216 || !strcmp(btmp, "N") || !strcmp(btmp, "n")
217 || !strcmp(btmp, "NO") || !strcmp(btmp, "no")) {
218 *asn1_bool = 0;
219 return 1;
220 }
221 err:
222 X509V3err(X509V3_F_X509V3_GET_VALUE_BOOL,X509V3_R_INVALID_BOOLEAN_STRING);
223 X509V3_conf_err(value);
224 return 0;
225}
226
227int X509V3_get_value_int(CONF_VALUE *value, ASN1_INTEGER **aint)
228{
229 ASN1_INTEGER *itmp;
230 if(!(itmp = s2i_ASN1_INTEGER(NULL, value->value))) {
231 X509V3_conf_err(value);
232 return 0;
233 }
234 *aint = itmp;
235 return 1;
236}
237
238#define HDR_NAME 1
239#define HDR_VALUE 2
240
241/*#define DEBUG*/
242
243STACK_OF(CONF_VALUE) *X509V3_parse_list(const char *line)
244{
245 char *p, *q, c;
246 char *ntmp, *vtmp;
247 STACK_OF(CONF_VALUE) *values = NULL;
248 char *linebuf;
249 int state;
250 /* We are going to modify the line so copy it first */
251 linebuf = BUF_strdup(line);
252 state = HDR_NAME;
253 ntmp = NULL;
254 /* Go through all characters */
255 for(p = linebuf, q = linebuf; (c = *p) && (c!='\r') && (c!='\n'); p++) {
256
257 switch(state) {
258 case HDR_NAME:
259 if(c == ':') {
260 state = HDR_VALUE;
261 *p = 0;
262 ntmp = strip_spaces(q);
263 if(!ntmp) {
264 X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_NAME);
265 goto err;
266 }
267 q = p + 1;
268 } else if(c == ',') {
269 *p = 0;
270 ntmp = strip_spaces(q);
271 q = p + 1;
272#if 0
273 printf("%s\n", ntmp);
274#endif
275 if(!ntmp) {
276 X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_NAME);
277 goto err;
278 }
279 X509V3_add_value(ntmp, NULL, &values);
280 }
281 break ;
282
283 case HDR_VALUE:
284 if(c == ',') {
285 state = HDR_NAME;
286 *p = 0;
287 vtmp = strip_spaces(q);
288#if 0
289 printf("%s\n", ntmp);
290#endif
291 if(!vtmp) {
292 X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_VALUE);
293 goto err;
294 }
295 X509V3_add_value(ntmp, vtmp, &values);
296 ntmp = NULL;
297 q = p + 1;
298 }
299
300 }
301 }
302
303 if(state == HDR_VALUE) {
304 vtmp = strip_spaces(q);
305#if 0
306 printf("%s=%s\n", ntmp, vtmp);
307#endif
308 if(!vtmp) {
309 X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_VALUE);
310 goto err;
311 }
312 X509V3_add_value(ntmp, vtmp, &values);
313 } else {
314 ntmp = strip_spaces(q);
315#if 0
316 printf("%s\n", ntmp);
317#endif
318 if(!ntmp) {
319 X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_NAME);
320 goto err;
321 }
322 X509V3_add_value(ntmp, NULL, &values);
323 }
324OPENSSL_free(linebuf);
325return values;
326
327err:
328OPENSSL_free(linebuf);
329sk_CONF_VALUE_pop_free(values, X509V3_conf_free);
330return NULL;
331
332}
333
334/* Delete leading and trailing spaces from a string */
335static char *strip_spaces(char *name)
336{
337 char *p, *q;
338 /* Skip over leading spaces */
339 p = name;
340 while(*p && isspace((unsigned char)*p)) p++;
341 if(!*p) return NULL;
342 q = p + strlen(p) - 1;
343 while((q != p) && isspace((unsigned char)*q)) q--;
344 if(p != q) q[1] = 0;
345 if(!*p) return NULL;
346 return p;
347}
348
349/* hex string utilities */
350
351/* Given a buffer of length 'len' return a OPENSSL_malloc'ed string with its
352 * hex representation
353 * @@@ (Contents of buffer are always kept in ASCII, also on EBCDIC machines)
354 */
355
356char *hex_to_string(unsigned char *buffer, long len)
357{
358 char *tmp, *q;
359 unsigned char *p;
360 int i;
361 static char hexdig[] = "0123456789ABCDEF";
362 if(!buffer || !len) return NULL;
363 if(!(tmp = OPENSSL_malloc(len * 3 + 1))) {
364 X509V3err(X509V3_F_HEX_TO_STRING,ERR_R_MALLOC_FAILURE);
365 return NULL;
366 }
367 q = tmp;
368 for(i = 0, p = buffer; i < len; i++,p++) {
369 *q++ = hexdig[(*p >> 4) & 0xf];
370 *q++ = hexdig[*p & 0xf];
371 *q++ = ':';
372 }
373 q[-1] = 0;
374#ifdef CHARSET_EBCDIC
375 ebcdic2ascii(tmp, tmp, q - tmp - 1);
376#endif
377
378 return tmp;
379}
380
381/* Give a string of hex digits convert to
382 * a buffer
383 */
384
385unsigned char *string_to_hex(char *str, long *len)
386{
387 unsigned char *hexbuf, *q;
388 unsigned char ch, cl, *p;
389 if(!str) {
390 X509V3err(X509V3_F_STRING_TO_HEX,X509V3_R_INVALID_NULL_ARGUMENT);
391 return NULL;
392 }
393 if(!(hexbuf = OPENSSL_malloc(strlen(str) >> 1))) goto err;
394 for(p = (unsigned char *)str, q = hexbuf; *p;) {
395 ch = *p++;
396#ifdef CHARSET_EBCDIC
397 ch = os_toebcdic[ch];
398#endif
399 if(ch == ':') continue;
400 cl = *p++;
401#ifdef CHARSET_EBCDIC
402 cl = os_toebcdic[cl];
403#endif
404 if(!cl) {
405 X509V3err(X509V3_F_STRING_TO_HEX,X509V3_R_ODD_NUMBER_OF_DIGITS);
406 OPENSSL_free(hexbuf);
407 return NULL;
408 }
409 if(isupper(ch)) ch = tolower(ch);
410 if(isupper(cl)) cl = tolower(cl);
411
412 if((ch >= '0') && (ch <= '9')) ch -= '0';
413 else if ((ch >= 'a') && (ch <= 'f')) ch -= 'a' - 10;
414 else goto badhex;
415
416 if((cl >= '0') && (cl <= '9')) cl -= '0';
417 else if ((cl >= 'a') && (cl <= 'f')) cl -= 'a' - 10;
418 else goto badhex;
419
420 *q++ = (ch << 4) | cl;
421 }
422
423 if(len) *len = q - hexbuf;
424
425 return hexbuf;
426
427 err:
428 if(hexbuf) OPENSSL_free(hexbuf);
429 X509V3err(X509V3_F_STRING_TO_HEX,ERR_R_MALLOC_FAILURE);
430 return NULL;
431
432 badhex:
433 OPENSSL_free(hexbuf);
434 X509V3err(X509V3_F_STRING_TO_HEX,X509V3_R_ILLEGAL_HEX_DIGIT);
435 return NULL;
436
437}
438
439/* V2I name comparison function: returns zero if 'name' matches
440 * cmp or cmp.*
441 */
442
443int name_cmp(const char *name, const char *cmp)
444{
445 int len, ret;
446 char c;
447 len = strlen(cmp);
448 if((ret = strncmp(name, cmp, len))) return ret;
449 c = name[len];
450 if(!c || (c=='.')) return 0;
451 return 1;
452}
453
454static int sk_strcmp(const char * const *a, const char * const *b)
455{
456 return strcmp(*a, *b);
457}
458
459STACK *X509_get1_email(X509 *x)
460{
461 GENERAL_NAMES *gens;
462 STACK *ret;
463 gens = X509_get_ext_d2i(x, NID_subject_alt_name, NULL, NULL);
464 ret = get_email(X509_get_subject_name(x), gens);
465 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
466 return ret;
467}
468
469STACK *X509_REQ_get1_email(X509_REQ *x)
470{
471 GENERAL_NAMES *gens;
472 STACK_OF(X509_EXTENSION) *exts;
473 STACK *ret;
474 exts = X509_REQ_get_extensions(x);
475 gens = X509V3_get_d2i(exts, NID_subject_alt_name, NULL, NULL);
476 ret = get_email(X509_REQ_get_subject_name(x), gens);
477 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
478 sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
479 return ret;
480}
481
482
483static STACK *get_email(X509_NAME *name, GENERAL_NAMES *gens)
484{
485 STACK *ret = NULL;
486 X509_NAME_ENTRY *ne;
487 ASN1_IA5STRING *email;
488 GENERAL_NAME *gen;
489 int i;
490 /* Now add any email address(es) to STACK */
491 i = -1;
492 /* First supplied X509_NAME */
493 while((i = X509_NAME_get_index_by_NID(name,
494 NID_pkcs9_emailAddress, i)) >= 0) {
495 ne = X509_NAME_get_entry(name, i);
496 email = X509_NAME_ENTRY_get_data(ne);
497 if(!append_ia5(&ret, email)) return NULL;
498 }
499 for(i = 0; i < sk_GENERAL_NAME_num(gens); i++)
500 {
501 gen = sk_GENERAL_NAME_value(gens, i);
502 if(gen->type != GEN_EMAIL) continue;
503 if(!append_ia5(&ret, gen->d.ia5)) return NULL;
504 }
505 return ret;
506}
507
508static void str_free(void *str)
509{
510 OPENSSL_free(str);
511}
512
513static int append_ia5(STACK **sk, ASN1_IA5STRING *email)
514{
515 char *emtmp;
516 /* First some sanity checks */
517 if(email->type != V_ASN1_IA5STRING) return 1;
518 if(!email->data || !email->length) return 1;
519 if(!*sk) *sk = sk_new(sk_strcmp);
520 if(!*sk) return 0;
521 /* Don't add duplicates */
522 if(sk_find(*sk, (char *)email->data) != -1) return 1;
523 emtmp = BUF_strdup((char *)email->data);
524 if(!emtmp || !sk_push(*sk, emtmp)) {
525 X509_email_free(*sk);
526 *sk = NULL;
527 return 0;
528 }
529 return 1;
530}
531
532void X509_email_free(STACK *sk)
533{
534 sk_pop_free(sk, str_free);
535}
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