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d02b48c6 | 1 | /* crypto/x509/x509_vfy.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
3 | * All rights reserved. |
4 | * | |
5 | * This package is an SSL implementation written | |
6 | * by Eric Young (eay@cryptsoft.com). | |
7 | * The implementation was written so as to conform with Netscapes SSL. | |
8 | * | |
9 | * This library is free for commercial and non-commercial use as long as | |
10 | * the following conditions are aheared to. The following conditions | |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 | * included with this distribution is covered by the same copyright terms | |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
15 | * | |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | |
17 | * the code are not to be removed. | |
18 | * If this package is used in a product, Eric Young should be given attribution | |
19 | * as the author of the parts of the library used. | |
20 | * This can be in the form of a textual message at program startup or | |
21 | * in documentation (online or textual) provided with the package. | |
22 | * | |
23 | * Redistribution and use in source and binary forms, with or without | |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
26 | * 1. Redistributions of source code must retain the copyright | |
27 | * notice, this list of conditions and the following disclaimer. | |
28 | * 2. Redistributions in binary form must reproduce the above copyright | |
29 | * notice, this list of conditions and the following disclaimer in the | |
30 | * documentation and/or other materials provided with the distribution. | |
31 | * 3. All advertising materials mentioning features or use of this software | |
32 | * must display the following acknowledgement: | |
33 | * "This product includes cryptographic software written by | |
34 | * Eric Young (eay@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | |
38 | * the apps directory (application code) you must include an acknowledgement: | |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40 | * | |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 | * SUCH DAMAGE. | |
52 | * | |
53 | * The licence and distribution terms for any publically available version or | |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 | * copied and put under another distribution licence | |
56 | * [including the GNU Public Licence.] | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
60 | #include <time.h> | |
61 | #include <errno.h> | |
d02b48c6 RE |
62 | |
63 | #include "cryptlib.h" | |
17f389bb | 64 | #include <openssl/crypto.h> |
ec577822 BM |
65 | #include <openssl/lhash.h> |
66 | #include <openssl/buffer.h> | |
67 | #include <openssl/evp.h> | |
68 | #include <openssl/asn1.h> | |
69 | #include <openssl/x509.h> | |
11262391 | 70 | #include <openssl/x509v3.h> |
ec577822 | 71 | #include <openssl/objects.h> |
d02b48c6 | 72 | |
d02b48c6 | 73 | static int null_callback(int ok,X509_STORE_CTX *e); |
11262391 | 74 | static int check_chain_purpose(X509_STORE_CTX *ctx); |
51630a37 | 75 | static int check_trust(X509_STORE_CTX *ctx); |
d02b48c6 | 76 | static int internal_verify(X509_STORE_CTX *ctx); |
e778802f | 77 | const char *X509_version="X.509" OPENSSL_VERSION_PTEXT; |
b4cadc6e | 78 | |
58964a49 RE |
79 | static STACK *x509_store_ctx_method=NULL; |
80 | static int x509_store_ctx_num=0; | |
81 | #if 0 | |
82 | static int x509_store_num=1; | |
83 | static STACK *x509_store_method=NULL; | |
84 | #endif | |
d02b48c6 | 85 | |
6b691a5c | 86 | static int null_callback(int ok, X509_STORE_CTX *e) |
d02b48c6 RE |
87 | { |
88 | return(ok); | |
89 | } | |
90 | ||
91 | #if 0 | |
6b691a5c | 92 | static int x509_subject_cmp(X509 **a, X509 **b) |
d02b48c6 RE |
93 | { |
94 | return(X509_subject_name_cmp(*a,*b)); | |
95 | } | |
96 | #endif | |
97 | ||
6b691a5c | 98 | int X509_verify_cert(X509_STORE_CTX *ctx) |
d02b48c6 RE |
99 | { |
100 | X509 *x,*xtmp,*chain_ss=NULL; | |
101 | X509_NAME *xn; | |
102 | X509_OBJECT obj; | |
103 | int depth,i,ok=0; | |
104 | int num; | |
105 | int (*cb)(); | |
f73e07cf | 106 | STACK_OF(X509) *sktmp=NULL; |
d02b48c6 RE |
107 | |
108 | if (ctx->cert == NULL) | |
109 | { | |
110 | X509err(X509_F_X509_VERIFY_CERT,X509_R_NO_CERT_SET_FOR_US_TO_VERIFY); | |
111 | return(-1); | |
112 | } | |
113 | ||
114 | cb=ctx->ctx->verify_cb; | |
115 | if (cb == NULL) cb=null_callback; | |
116 | ||
117 | /* first we make sure the chain we are going to build is | |
118 | * present and that the first entry is in place */ | |
119 | if (ctx->chain == NULL) | |
120 | { | |
7e258a56 BL |
121 | if ( ((ctx->chain=sk_X509_new_null()) == NULL) || |
122 | (!sk_X509_push(ctx->chain,ctx->cert))) | |
d02b48c6 RE |
123 | { |
124 | X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE); | |
125 | goto end; | |
126 | } | |
127 | CRYPTO_add(&ctx->cert->references,1,CRYPTO_LOCK_X509); | |
128 | ctx->last_untrusted=1; | |
129 | } | |
130 | ||
f76d8c47 | 131 | /* We use a temporary STACK so we can chop and hack at it */ |
f73e07cf BL |
132 | if (ctx->untrusted != NULL |
133 | && (sktmp=sk_X509_dup(ctx->untrusted)) == NULL) | |
d02b48c6 RE |
134 | { |
135 | X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE); | |
136 | goto end; | |
137 | } | |
138 | ||
7e258a56 BL |
139 | num=sk_X509_num(ctx->chain); |
140 | x=sk_X509_value(ctx->chain,num-1); | |
d02b48c6 RE |
141 | depth=ctx->depth; |
142 | ||
143 | ||
144 | for (;;) | |
145 | { | |
146 | /* If we have enough, we break */ | |
d797727b | 147 | if (depth < num) break; /* FIXME: If this happens, we should take |
a9642be6 BM |
148 | * note of it and, if appropriate, use the |
149 | * X509_V_ERR_CERT_CHAIN_TOO_LONG error | |
150 | * code later. | |
151 | */ | |
d02b48c6 RE |
152 | |
153 | /* If we are self signed, we break */ | |
154 | xn=X509_get_issuer_name(x); | |
155 | if (X509_NAME_cmp(X509_get_subject_name(x),xn) == 0) | |
156 | break; | |
157 | ||
158 | /* If we were passed a cert chain, use it first */ | |
159 | if (ctx->untrusted != NULL) | |
160 | { | |
161 | xtmp=X509_find_by_subject(sktmp,xn); | |
162 | if (xtmp != NULL) | |
163 | { | |
7e258a56 | 164 | if (!sk_X509_push(ctx->chain,xtmp)) |
d02b48c6 RE |
165 | { |
166 | X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE); | |
167 | goto end; | |
168 | } | |
169 | CRYPTO_add(&xtmp->references,1,CRYPTO_LOCK_X509); | |
f73e07cf | 170 | sk_X509_delete_ptr(sktmp,xtmp); |
d02b48c6 RE |
171 | ctx->last_untrusted++; |
172 | x=xtmp; | |
173 | num++; | |
174 | /* reparse the full chain for | |
175 | * the next one */ | |
176 | continue; | |
177 | } | |
178 | } | |
179 | break; | |
180 | } | |
181 | ||
182 | /* at this point, chain should contain a list of untrusted | |
183 | * certificates. We now need to add at least one trusted one, | |
184 | * if possible, otherwise we complain. */ | |
185 | ||
7e258a56 BL |
186 | i=sk_X509_num(ctx->chain); |
187 | x=sk_X509_value(ctx->chain,i-1); | |
f76d8c47 DSH |
188 | xn = X509_get_subject_name(x); |
189 | if (X509_NAME_cmp(xn,X509_get_issuer_name(x)) | |
d02b48c6 RE |
190 | == 0) |
191 | { | |
192 | /* we have a self signed certificate */ | |
7e258a56 | 193 | if (sk_X509_num(ctx->chain) == 1) |
d02b48c6 | 194 | { |
f76d8c47 DSH |
195 | /* We have a single self signed certificate: see if |
196 | * we can find it in the store. We must have an exact | |
197 | * match to avoid possible impersonation. | |
198 | */ | |
199 | ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj); | |
200 | if ((ok != X509_LU_X509) || X509_cmp(x, obj.data.x509)) | |
201 | { | |
202 | ctx->error=X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT; | |
203 | ctx->current_cert=x; | |
204 | ctx->error_depth=i-1; | |
205 | if(ok == X509_LU_X509) X509_OBJECT_free_contents(&obj); | |
206 | ok=cb(0,ctx); | |
207 | if (!ok) goto end; | |
208 | } | |
209 | else | |
210 | { | |
211 | /* We have a match: replace certificate with store version | |
212 | * so we get any trust settings. | |
213 | */ | |
214 | X509_free(x); | |
215 | x = obj.data.x509; | |
216 | sk_X509_set(ctx->chain, i - 1, x); | |
217 | ctx->last_untrusted=0; | |
218 | } | |
d02b48c6 RE |
219 | } |
220 | else | |
221 | { | |
222 | /* worry more about this one elsewhere */ | |
7e258a56 | 223 | chain_ss=sk_X509_pop(ctx->chain); |
d02b48c6 RE |
224 | ctx->last_untrusted--; |
225 | num--; | |
7e258a56 | 226 | x=sk_X509_value(ctx->chain,num-1); |
d02b48c6 RE |
227 | } |
228 | } | |
229 | ||
230 | /* We now lookup certs from the certificate store */ | |
231 | for (;;) | |
232 | { | |
233 | /* If we have enough, we break */ | |
7f89714e | 234 | if (depth < num) break; |
d02b48c6 RE |
235 | |
236 | /* If we are self signed, we break */ | |
237 | xn=X509_get_issuer_name(x); | |
238 | if (X509_NAME_cmp(X509_get_subject_name(x),xn) == 0) | |
239 | break; | |
240 | ||
241 | ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj); | |
242 | if (ok != X509_LU_X509) | |
243 | { | |
244 | if (ok == X509_LU_RETRY) | |
245 | { | |
246 | X509_OBJECT_free_contents(&obj); | |
247 | X509err(X509_F_X509_VERIFY_CERT,X509_R_SHOULD_RETRY); | |
248 | return(ok); | |
249 | } | |
250 | else if (ok != X509_LU_FAIL) | |
251 | { | |
252 | X509_OBJECT_free_contents(&obj); | |
253 | /* not good :-(, break anyway */ | |
254 | return(ok); | |
255 | } | |
256 | break; | |
257 | } | |
258 | x=obj.data.x509; | |
7e258a56 | 259 | if (!sk_X509_push(ctx->chain,obj.data.x509)) |
d02b48c6 RE |
260 | { |
261 | X509_OBJECT_free_contents(&obj); | |
262 | X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE); | |
263 | return(0); | |
264 | } | |
265 | num++; | |
266 | } | |
267 | ||
268 | /* we now have our chain, lets check it... */ | |
269 | xn=X509_get_issuer_name(x); | |
270 | if (X509_NAME_cmp(X509_get_subject_name(x),xn) != 0) | |
271 | { | |
272 | if ((chain_ss == NULL) || (X509_NAME_cmp(X509_get_subject_name(chain_ss),xn) != 0)) | |
273 | { | |
274 | if (ctx->last_untrusted >= num) | |
275 | ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY; | |
276 | else | |
277 | ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT; | |
278 | ctx->current_cert=x; | |
279 | } | |
280 | else | |
281 | { | |
282 | ||
7e258a56 | 283 | sk_X509_push(ctx->chain,chain_ss); |
d02b48c6 RE |
284 | num++; |
285 | ctx->last_untrusted=num; | |
286 | ctx->current_cert=chain_ss; | |
287 | ctx->error=X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN; | |
288 | chain_ss=NULL; | |
289 | } | |
290 | ||
291 | ctx->error_depth=num-1; | |
292 | ok=cb(0,ctx); | |
293 | if (!ok) goto end; | |
294 | } | |
295 | ||
11262391 | 296 | /* We have the chain complete: now we need to check its purpose */ |
13938ace | 297 | if(ctx->purpose > 0) ok = check_chain_purpose(ctx); |
11262391 DSH |
298 | |
299 | if(!ok) goto end; | |
300 | ||
51630a37 DSH |
301 | /* The chain extensions are OK: check trust */ |
302 | ||
13938ace | 303 | if(ctx->trust > 0) ok = check_trust(ctx); |
51630a37 DSH |
304 | |
305 | if(!ok) goto end; | |
306 | ||
d02b48c6 RE |
307 | /* We may as well copy down any DSA parameters that are required */ |
308 | X509_get_pubkey_parameters(NULL,ctx->chain); | |
309 | ||
310 | /* At this point, we have a chain and just need to verify it */ | |
311 | if (ctx->ctx->verify != NULL) | |
312 | ok=ctx->ctx->verify(ctx); | |
313 | else | |
314 | ok=internal_verify(ctx); | |
dfeab068 RE |
315 | if (0) |
316 | { | |
d02b48c6 | 317 | end: |
dfeab068 RE |
318 | X509_get_pubkey_parameters(NULL,ctx->chain); |
319 | } | |
f73e07cf | 320 | if (sktmp != NULL) sk_X509_free(sktmp); |
d02b48c6 RE |
321 | if (chain_ss != NULL) X509_free(chain_ss); |
322 | return(ok); | |
323 | } | |
324 | ||
11262391 DSH |
325 | /* Check a certificate chains extensions for consistency |
326 | * with the supplied purpose | |
327 | */ | |
328 | ||
329 | static int check_chain_purpose(X509_STORE_CTX *ctx) | |
330 | { | |
331 | #ifdef NO_CHAIN_VERIFY | |
332 | return 1; | |
333 | #else | |
334 | int i, ok=0; | |
335 | X509 *x; | |
336 | int (*cb)(); | |
337 | cb=ctx->ctx->verify_cb; | |
338 | if (cb == NULL) cb=null_callback; | |
339 | /* Check all untrusted certificates */ | |
340 | for(i = 0; i < ctx->last_untrusted; i++) { | |
341 | x = sk_X509_value(ctx->chain, i); | |
13938ace | 342 | if(!X509_check_purpose(x, ctx->purpose, i)) { |
11262391 DSH |
343 | if(i) ctx->error = X509_V_ERR_INVALID_CA; |
344 | else ctx->error = X509_V_ERR_INVALID_PURPOSE; | |
345 | ctx->error_depth = i; | |
346 | ctx->current_cert = x; | |
347 | ok=cb(0,ctx); | |
348 | if(!ok) goto end; | |
349 | } | |
350 | /* Check pathlen */ | |
351 | if((i > 1) && (x->ex_pathlen != -1) | |
352 | && (i > (x->ex_pathlen + 1))) { | |
353 | ctx->error = X509_V_ERR_PATH_LENGTH_EXCEEDED; | |
354 | ctx->error_depth = i; | |
355 | ctx->current_cert = x; | |
356 | ok=cb(0,ctx); | |
357 | if(!ok) goto end; | |
358 | } | |
359 | } | |
360 | ok = 1; | |
361 | end: | |
362 | return(ok); | |
363 | #endif | |
364 | } | |
365 | ||
51630a37 DSH |
366 | static int check_trust(X509_STORE_CTX *ctx) |
367 | { | |
368 | #ifdef NO_CHAIN_VERIFY | |
369 | return 1; | |
370 | #else | |
371 | int i, ok; | |
372 | X509 *x; | |
373 | int (*cb)(); | |
374 | cb=ctx->ctx->verify_cb; | |
375 | if (cb == NULL) cb=null_callback; | |
376 | /* For now just check the last certificate in the chain */ | |
377 | i = sk_X509_num(ctx->chain) - 1; | |
378 | x = sk_X509_value(ctx->chain, i); | |
13938ace | 379 | ok = X509_check_trust(x, ctx->trust, 0); |
51630a37 DSH |
380 | if(ok == X509_TRUST_TRUSTED) return 1; |
381 | ctx->error_depth = sk_X509_num(ctx->chain) - 1; | |
382 | ctx->current_cert = x; | |
383 | if(ok == X509_TRUST_REJECTED) ctx->error = X509_V_ERR_CERT_REJECTED; | |
384 | else ctx->error = X509_V_ERR_CERT_UNTRUSTED; | |
385 | ok = cb(0, ctx); | |
386 | return(ok); | |
387 | #endif | |
388 | } | |
389 | ||
6b691a5c | 390 | static int internal_verify(X509_STORE_CTX *ctx) |
d02b48c6 RE |
391 | { |
392 | int i,ok=0,n; | |
393 | X509 *xs,*xi; | |
394 | EVP_PKEY *pkey=NULL; | |
395 | int (*cb)(); | |
396 | ||
397 | cb=ctx->ctx->verify_cb; | |
398 | if (cb == NULL) cb=null_callback; | |
399 | ||
7e258a56 | 400 | n=sk_X509_num(ctx->chain); |
d02b48c6 RE |
401 | ctx->error_depth=n-1; |
402 | n--; | |
7e258a56 | 403 | xi=sk_X509_value(ctx->chain,n); |
d02b48c6 RE |
404 | if (X509_NAME_cmp(X509_get_subject_name(xi), |
405 | X509_get_issuer_name(xi)) == 0) | |
406 | xs=xi; | |
407 | else | |
408 | { | |
409 | if (n <= 0) | |
410 | { | |
411 | ctx->error=X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE; | |
412 | ctx->current_cert=xi; | |
413 | ok=cb(0,ctx); | |
414 | goto end; | |
415 | } | |
416 | else | |
417 | { | |
418 | n--; | |
419 | ctx->error_depth=n; | |
7e258a56 | 420 | xs=sk_X509_value(ctx->chain,n); |
d02b48c6 RE |
421 | } |
422 | } | |
423 | ||
424 | /* ctx->error=0; not needed */ | |
425 | while (n >= 0) | |
426 | { | |
427 | ctx->error_depth=n; | |
428 | if (!xs->valid) | |
429 | { | |
430 | if ((pkey=X509_get_pubkey(xi)) == NULL) | |
431 | { | |
432 | ctx->error=X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY; | |
433 | ctx->current_cert=xi; | |
434 | ok=(*cb)(0,ctx); | |
435 | if (!ok) goto end; | |
436 | } | |
437 | if (X509_verify(xs,pkey) <= 0) | |
438 | { | |
cfcf6453 | 439 | EVP_PKEY_free(pkey); |
d02b48c6 RE |
440 | ctx->error=X509_V_ERR_CERT_SIGNATURE_FAILURE; |
441 | ctx->current_cert=xs; | |
442 | ok=(*cb)(0,ctx); | |
443 | if (!ok) goto end; | |
444 | } | |
cfcf6453 | 445 | EVP_PKEY_free(pkey); |
d02b48c6 RE |
446 | pkey=NULL; |
447 | ||
448 | i=X509_cmp_current_time(X509_get_notBefore(xs)); | |
449 | if (i == 0) | |
450 | { | |
451 | ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD; | |
452 | ctx->current_cert=xs; | |
453 | ok=(*cb)(0,ctx); | |
454 | if (!ok) goto end; | |
455 | } | |
456 | if (i > 0) | |
457 | { | |
458 | ctx->error=X509_V_ERR_CERT_NOT_YET_VALID; | |
459 | ctx->current_cert=xs; | |
460 | ok=(*cb)(0,ctx); | |
461 | if (!ok) goto end; | |
462 | } | |
463 | xs->valid=1; | |
464 | } | |
465 | ||
466 | i=X509_cmp_current_time(X509_get_notAfter(xs)); | |
467 | if (i == 0) | |
468 | { | |
469 | ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD; | |
470 | ctx->current_cert=xs; | |
471 | ok=(*cb)(0,ctx); | |
472 | if (!ok) goto end; | |
473 | } | |
474 | ||
475 | if (i < 0) | |
476 | { | |
477 | ctx->error=X509_V_ERR_CERT_HAS_EXPIRED; | |
478 | ctx->current_cert=xs; | |
479 | ok=(*cb)(0,ctx); | |
480 | if (!ok) goto end; | |
481 | } | |
482 | ||
483 | /* CRL CHECK */ | |
484 | ||
485 | /* The last error (if any) is still in the error value */ | |
486 | ctx->current_cert=xs; | |
487 | ok=(*cb)(1,ctx); | |
488 | if (!ok) goto end; | |
489 | ||
490 | n--; | |
491 | if (n >= 0) | |
492 | { | |
493 | xi=xs; | |
7e258a56 | 494 | xs=sk_X509_value(ctx->chain,n); |
d02b48c6 RE |
495 | } |
496 | } | |
497 | ok=1; | |
498 | end: | |
499 | return(ok); | |
500 | } | |
501 | ||
6b691a5c | 502 | int X509_cmp_current_time(ASN1_UTCTIME *ctm) |
d02b48c6 RE |
503 | { |
504 | char *str; | |
505 | ASN1_UTCTIME atm; | |
506 | time_t offset; | |
507 | char buff1[24],buff2[24],*p; | |
508 | int i,j; | |
509 | ||
510 | p=buff1; | |
511 | i=ctm->length; | |
512 | str=(char *)ctm->data; | |
513 | if ((i < 11) || (i > 17)) return(0); | |
514 | memcpy(p,str,10); | |
515 | p+=10; | |
516 | str+=10; | |
517 | ||
518 | if ((*str == 'Z') || (*str == '-') || (*str == '+')) | |
519 | { *(p++)='0'; *(p++)='0'; } | |
520 | else { *(p++)= *(str++); *(p++)= *(str++); } | |
521 | *(p++)='Z'; | |
522 | *(p++)='\0'; | |
523 | ||
524 | if (*str == 'Z') | |
525 | offset=0; | |
526 | else | |
527 | { | |
528 | if ((*str != '+') && (str[5] != '-')) | |
529 | return(0); | |
530 | offset=((str[1]-'0')*10+(str[2]-'0'))*60; | |
531 | offset+=(str[3]-'0')*10+(str[4]-'0'); | |
532 | if (*str == '-') | |
dfeab068 | 533 | offset= -offset; |
d02b48c6 RE |
534 | } |
535 | atm.type=V_ASN1_UTCTIME; | |
536 | atm.length=sizeof(buff2); | |
537 | atm.data=(unsigned char *)buff2; | |
538 | ||
58964a49 | 539 | X509_gmtime_adj(&atm,-offset); |
d02b48c6 RE |
540 | |
541 | i=(buff1[0]-'0')*10+(buff1[1]-'0'); | |
adbfb083 | 542 | if (i < 50) i+=100; /* cf. RFC 2459 */ |
d02b48c6 | 543 | j=(buff2[0]-'0')*10+(buff2[1]-'0'); |
20232a9c | 544 | if (j < 50) j+=100; |
d02b48c6 RE |
545 | |
546 | if (i < j) return (-1); | |
547 | if (i > j) return (1); | |
548 | i=strcmp(buff1,buff2); | |
549 | if (i == 0) /* wait a second then return younger :-) */ | |
550 | return(-1); | |
551 | else | |
552 | return(i); | |
553 | } | |
554 | ||
6b691a5c | 555 | ASN1_UTCTIME *X509_gmtime_adj(ASN1_UTCTIME *s, long adj) |
d02b48c6 RE |
556 | { |
557 | time_t t; | |
558 | ||
559 | time(&t); | |
560 | t+=adj; | |
561 | return(ASN1_UTCTIME_set(s,t)); | |
562 | } | |
563 | ||
7e258a56 | 564 | int X509_get_pubkey_parameters(EVP_PKEY *pkey, STACK_OF(X509) *chain) |
d02b48c6 RE |
565 | { |
566 | EVP_PKEY *ktmp=NULL,*ktmp2; | |
567 | int i,j; | |
568 | ||
569 | if ((pkey != NULL) && !EVP_PKEY_missing_parameters(pkey)) return(1); | |
570 | ||
7e258a56 | 571 | for (i=0; i<sk_X509_num(chain); i++) |
d02b48c6 | 572 | { |
7e258a56 | 573 | ktmp=X509_get_pubkey(sk_X509_value(chain,i)); |
d02b48c6 RE |
574 | if (ktmp == NULL) |
575 | { | |
576 | X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,X509_R_UNABLE_TO_GET_CERTS_PUBLIC_KEY); | |
577 | return(0); | |
578 | } | |
579 | if (!EVP_PKEY_missing_parameters(ktmp)) | |
580 | break; | |
581 | else | |
582 | { | |
cfcf6453 | 583 | EVP_PKEY_free(ktmp); |
d02b48c6 RE |
584 | ktmp=NULL; |
585 | } | |
586 | } | |
587 | if (ktmp == NULL) | |
588 | { | |
589 | X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,X509_R_UNABLE_TO_FIND_PARAMETERS_IN_CHAIN); | |
590 | return(0); | |
591 | } | |
592 | ||
593 | /* first, populate the other certs */ | |
594 | for (j=i-1; j >= 0; j--) | |
595 | { | |
7e258a56 | 596 | ktmp2=X509_get_pubkey(sk_X509_value(chain,j)); |
d02b48c6 | 597 | EVP_PKEY_copy_parameters(ktmp2,ktmp); |
cfcf6453 | 598 | EVP_PKEY_free(ktmp2); |
d02b48c6 RE |
599 | } |
600 | ||
cfcf6453 DSH |
601 | if (pkey != NULL) EVP_PKEY_copy_parameters(pkey,ktmp); |
602 | EVP_PKEY_free(ktmp); | |
d02b48c6 RE |
603 | return(1); |
604 | } | |
605 | ||
6b691a5c | 606 | int X509_STORE_add_cert(X509_STORE *ctx, X509 *x) |
d02b48c6 RE |
607 | { |
608 | X509_OBJECT *obj,*r; | |
609 | int ret=1; | |
610 | ||
611 | if (x == NULL) return(0); | |
612 | obj=(X509_OBJECT *)Malloc(sizeof(X509_OBJECT)); | |
613 | if (obj == NULL) | |
614 | { | |
615 | X509err(X509_F_X509_STORE_ADD_CERT,ERR_R_MALLOC_FAILURE); | |
616 | return(0); | |
617 | } | |
618 | obj->type=X509_LU_X509; | |
619 | obj->data.x509=x; | |
620 | ||
621 | CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); | |
622 | ||
623 | X509_OBJECT_up_ref_count(obj); | |
624 | ||
625 | r=(X509_OBJECT *)lh_insert(ctx->certs,(char *)obj); | |
626 | if (r != NULL) | |
627 | { /* oops, put it back */ | |
628 | lh_delete(ctx->certs,(char *)obj); | |
629 | X509_OBJECT_free_contents(obj); | |
630 | Free(obj); | |
631 | lh_insert(ctx->certs,(char *)r); | |
632 | X509err(X509_F_X509_STORE_ADD_CERT,X509_R_CERT_ALREADY_IN_HASH_TABLE); | |
633 | ret=0; | |
634 | } | |
635 | ||
636 | CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); | |
637 | ||
638 | return(ret); | |
639 | } | |
640 | ||
6b691a5c | 641 | int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x) |
58964a49 RE |
642 | { |
643 | X509_OBJECT *obj,*r; | |
644 | int ret=1; | |
645 | ||
646 | if (x == NULL) return(0); | |
647 | obj=(X509_OBJECT *)Malloc(sizeof(X509_OBJECT)); | |
648 | if (obj == NULL) | |
649 | { | |
650 | X509err(X509_F_X509_STORE_ADD_CRL,ERR_R_MALLOC_FAILURE); | |
651 | return(0); | |
652 | } | |
653 | obj->type=X509_LU_CRL; | |
654 | obj->data.crl=x; | |
655 | ||
656 | CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); | |
657 | ||
658 | X509_OBJECT_up_ref_count(obj); | |
659 | ||
660 | r=(X509_OBJECT *)lh_insert(ctx->certs,(char *)obj); | |
661 | if (r != NULL) | |
662 | { /* oops, put it back */ | |
663 | lh_delete(ctx->certs,(char *)obj); | |
664 | X509_OBJECT_free_contents(obj); | |
665 | Free(obj); | |
666 | lh_insert(ctx->certs,(char *)r); | |
667 | X509err(X509_F_X509_STORE_ADD_CRL,X509_R_CERT_ALREADY_IN_HASH_TABLE); | |
668 | ret=0; | |
669 | } | |
670 | ||
671 | CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); | |
672 | ||
673 | return(ret); | |
674 | } | |
675 | ||
6b691a5c UM |
676 | int X509_STORE_CTX_get_ex_new_index(long argl, char *argp, int (*new_func)(), |
677 | int (*dup_func)(), void (*free_func)()) | |
58964a49 RE |
678 | { |
679 | x509_store_ctx_num++; | |
680 | return(CRYPTO_get_ex_new_index(x509_store_ctx_num-1, | |
681 | &x509_store_ctx_method, | |
682 | argl,argp,new_func,dup_func,free_func)); | |
683 | } | |
684 | ||
6b691a5c | 685 | int X509_STORE_CTX_set_ex_data(X509_STORE_CTX *ctx, int idx, void *data) |
58964a49 RE |
686 | { |
687 | return(CRYPTO_set_ex_data(&ctx->ex_data,idx,data)); | |
688 | } | |
689 | ||
6b691a5c | 690 | void *X509_STORE_CTX_get_ex_data(X509_STORE_CTX *ctx, int idx) |
58964a49 RE |
691 | { |
692 | return(CRYPTO_get_ex_data(&ctx->ex_data,idx)); | |
693 | } | |
694 | ||
6b691a5c | 695 | int X509_STORE_CTX_get_error(X509_STORE_CTX *ctx) |
58964a49 RE |
696 | { |
697 | return(ctx->error); | |
698 | } | |
699 | ||
6b691a5c | 700 | void X509_STORE_CTX_set_error(X509_STORE_CTX *ctx, int err) |
58964a49 RE |
701 | { |
702 | ctx->error=err; | |
703 | } | |
704 | ||
6b691a5c | 705 | int X509_STORE_CTX_get_error_depth(X509_STORE_CTX *ctx) |
58964a49 RE |
706 | { |
707 | return(ctx->error_depth); | |
708 | } | |
709 | ||
6b691a5c | 710 | X509 *X509_STORE_CTX_get_current_cert(X509_STORE_CTX *ctx) |
58964a49 RE |
711 | { |
712 | return(ctx->current_cert); | |
713 | } | |
714 | ||
7e258a56 | 715 | STACK_OF(X509) *X509_STORE_CTX_get_chain(X509_STORE_CTX *ctx) |
58964a49 RE |
716 | { |
717 | return(ctx->chain); | |
718 | } | |
719 | ||
6b691a5c | 720 | void X509_STORE_CTX_set_cert(X509_STORE_CTX *ctx, X509 *x) |
58964a49 RE |
721 | { |
722 | ctx->cert=x; | |
723 | } | |
724 | ||
6b691a5c | 725 | void X509_STORE_CTX_set_chain(X509_STORE_CTX *ctx, STACK_OF(X509) *sk) |
58964a49 RE |
726 | { |
727 | ctx->untrusted=sk; | |
728 | } | |
729 | ||
13938ace | 730 | int X509_STORE_CTX_set_purpose(X509_STORE_CTX *ctx, int purpose) |
11262391 | 731 | { |
13938ace | 732 | return X509_STORE_CTX_purpose_inherit(ctx, 0, purpose, 0); |
11262391 DSH |
733 | } |
734 | ||
13938ace | 735 | void X509_STORE_CTX_set_trust(X509_STORE_CTX *ctx, int trust) |
11262391 | 736 | { |
13938ace | 737 | ctx->trust = trust; |
11262391 DSH |
738 | } |
739 | ||
13938ace DSH |
740 | /* This function is used to set the X509_STORE_CTX purpose and trust |
741 | * values. This is intended to be used when another structure has its | |
742 | * own trust and purpose values which (if set) will be inherited by | |
743 | * the ctx. If they aren't set then we will usually have a default | |
744 | * purpose in mind which should then be used to set the trust value. | |
745 | * An example of this is SSL use: an SSL structure will have its own | |
746 | * purpose and trust settings which the application can set: if they | |
747 | * aren't set then we use the default of SSL client/server. | |
748 | */ | |
749 | ||
750 | int X509_STORE_CTX_purpose_inherit(X509_STORE_CTX *ctx, int def_purpose, | |
751 | int purpose, int trust) | |
51630a37 | 752 | { |
51630a37 | 753 | int idx; |
13938ace DSH |
754 | /* If purpose not set use default */ |
755 | if(!purpose) purpose = def_purpose; | |
756 | /* If we have a purpose then check it is valid */ | |
757 | if(purpose) { | |
758 | idx = X509_PURPOSE_get_by_id(purpose); | |
759 | if(idx == -1) { | |
760 | X509err(X509_F_X509_STORE_CTX_PURPOSE_INHERIT, | |
761 | X509_R_UNKNOWN_PURPOSE_ID); | |
762 | return 0; | |
763 | } | |
764 | /* If trust not set then get from purpose default */ | |
765 | if(!trust) { | |
766 | X509_PURPOSE *ptmp; | |
767 | ptmp = X509_PURPOSE_iget(idx); | |
768 | trust = ptmp->trust; | |
769 | } | |
51630a37 | 770 | } |
13938ace DSH |
771 | if(trust) { |
772 | idx = X509_TRUST_get_by_id(trust); | |
773 | if(idx == -1) { | |
774 | X509err(X509_F_X509_STORE_CTX_PURPOSE_INHERIT, | |
775 | X509_R_UNKNOWN_TRUST_ID); | |
776 | return 0; | |
777 | } | |
778 | } | |
779 | ||
780 | if(purpose) ctx->purpose = purpose; | |
781 | if(trust) ctx->trust = trust; | |
51630a37 DSH |
782 | return 1; |
783 | } | |
784 | ||
13938ace | 785 | |
f73e07cf BL |
786 | IMPLEMENT_STACK_OF(X509) |
787 | IMPLEMENT_ASN1_SET_OF(X509) | |
d500de16 | 788 | |
f73e07cf | 789 | IMPLEMENT_STACK_OF(X509_NAME) |
d500de16 | 790 | |
f5fedc04 | 791 | IMPLEMENT_STACK_OF(X509_ATTRIBUTE) |
d500de16 | 792 | IMPLEMENT_ASN1_SET_OF(X509_ATTRIBUTE) |