1 /* crypto/x509/x509_lu.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
61 #include <openssl/lhash.h>
62 #include <openssl/x509.h>
63 #include <openssl/x509v3.h>
65 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
69 ret=(X509_LOOKUP *)OPENSSL_malloc(sizeof(X509_LOOKUP));
70 if (ret == NULL) return NULL;
75 ret->method_data=NULL;
77 if ((method->new_item != NULL) && !method->new_item(ret))
85 void X509_LOOKUP_free(X509_LOOKUP *ctx)
87 if (ctx == NULL) return;
88 if ( (ctx->method != NULL) &&
89 (ctx->method->free != NULL))
90 ctx->method->free(ctx);
94 int X509_LOOKUP_init(X509_LOOKUP *ctx)
96 if (ctx->method == NULL) return 0;
97 if (ctx->method->init != NULL)
98 return ctx->method->init(ctx);
103 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
105 if (ctx->method == NULL) return 0;
106 if (ctx->method->shutdown != NULL)
107 return ctx->method->shutdown(ctx);
112 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
115 if (ctx->method == NULL) return -1;
116 if (ctx->method->ctrl != NULL)
117 return ctx->method->ctrl(ctx,cmd,argc,argl,ret);
122 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
125 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
127 if (ctx->skip) return 0;
128 return ctx->method->get_by_subject(ctx,type,name,ret);
131 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
132 ASN1_INTEGER *serial, X509_OBJECT *ret)
134 if ((ctx->method == NULL) ||
135 (ctx->method->get_by_issuer_serial == NULL))
137 return ctx->method->get_by_issuer_serial(ctx,type,name,serial,ret);
140 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
141 unsigned char *bytes, int len, X509_OBJECT *ret)
143 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
145 return ctx->method->get_by_fingerprint(ctx,type,bytes,len,ret);
148 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
151 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
153 return ctx->method->get_by_alias(ctx,type,str,len,ret);
157 static int x509_object_cmp(const X509_OBJECT * const *a, const X509_OBJECT * const *b)
161 ret=((*a)->type - (*b)->type);
166 ret=X509_subject_name_cmp((*a)->data.x509,(*b)->data.x509);
169 ret=X509_CRL_cmp((*a)->data.crl,(*b)->data.crl);
178 X509_STORE *X509_STORE_new(void)
182 if ((ret=(X509_STORE *)OPENSSL_malloc(sizeof(X509_STORE))) == NULL)
184 ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
186 ret->get_cert_methods=sk_X509_LOOKUP_new_null();
190 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
194 ret->check_issued = 0;
195 ret->check_revocation = 0;
199 ret->lookup_certs = 0;
200 ret->lookup_crls = 0;
203 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data);
208 static void cleanup(X509_OBJECT *a)
210 if (a->type == X509_LU_X509)
212 X509_free(a->data.x509);
214 else if (a->type == X509_LU_CRL)
216 X509_CRL_free(a->data.crl);
226 void X509_STORE_free(X509_STORE *vfy)
229 STACK_OF(X509_LOOKUP) *sk;
235 sk=vfy->get_cert_methods;
236 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
238 lu=sk_X509_LOOKUP_value(sk,i);
239 X509_LOOKUP_shutdown(lu);
240 X509_LOOKUP_free(lu);
242 sk_X509_LOOKUP_free(sk);
243 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
245 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
247 X509_VERIFY_PARAM_free(vfy->param);
251 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
254 STACK_OF(X509_LOOKUP) *sk;
257 sk=v->get_cert_methods;
258 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
260 lu=sk_X509_LOOKUP_value(sk,i);
267 lu=X509_LOOKUP_new(m);
273 if (sk_X509_LOOKUP_push(v->get_cert_methods,lu))
277 X509_LOOKUP_free(lu);
283 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
286 X509_STORE *ctx=vs->ctx;
288 X509_OBJECT stmp,*tmp;
291 tmp=X509_OBJECT_retrieve_by_subject(ctx->objs,type,name);
293 if (tmp == NULL || type == X509_LU_CRL)
295 for (i=vs->current_method; i<sk_X509_LOOKUP_num(ctx->get_cert_methods); i++)
297 lu=sk_X509_LOOKUP_value(ctx->get_cert_methods,i);
298 j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
301 vs->current_method=j;
310 vs->current_method=0;
315 /* if (ret->data.ptr != NULL)
316 X509_OBJECT_free_contents(ret); */
319 ret->data.ptr=tmp->data.ptr;
321 X509_OBJECT_up_ref_count(ret);
326 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
331 if (x == NULL) return 0;
332 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
335 X509err(X509_F_X509_STORE_ADD_CERT,ERR_R_MALLOC_FAILURE);
338 obj->type=X509_LU_X509;
341 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
343 X509_OBJECT_up_ref_count(obj);
346 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
348 X509_OBJECT_free_contents(obj);
350 X509err(X509_F_X509_STORE_ADD_CERT,X509_R_CERT_ALREADY_IN_HASH_TABLE);
353 else sk_X509_OBJECT_push(ctx->objs, obj);
355 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
360 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
365 if (x == NULL) return 0;
366 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
369 X509err(X509_F_X509_STORE_ADD_CRL,ERR_R_MALLOC_FAILURE);
372 obj->type=X509_LU_CRL;
375 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
377 X509_OBJECT_up_ref_count(obj);
379 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
381 X509_OBJECT_free_contents(obj);
383 X509err(X509_F_X509_STORE_ADD_CRL,X509_R_CERT_ALREADY_IN_HASH_TABLE);
386 else sk_X509_OBJECT_push(ctx->objs, obj);
388 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
393 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
398 CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
401 CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
406 void X509_OBJECT_free_contents(X509_OBJECT *a)
411 X509_free(a->data.x509);
414 X509_CRL_free(a->data.crl);
419 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
420 X509_NAME *name, int *pnmatch)
426 X509_CRL_INFO crl_info_s;
433 stmp.data.x509= &x509_s;
434 x509_s.cert_info= &cinf_s;
438 stmp.data.crl= &crl_s;
439 crl_s.crl= &crl_info_s;
440 crl_info_s.issuer=name;
447 idx = sk_X509_OBJECT_find(h,&stmp);
448 if (idx >= 0 && pnmatch)
451 const X509_OBJECT *tobj, *pstmp;
454 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++)
456 tobj = sk_X509_OBJECT_value(h, tidx);
457 if (x509_object_cmp(&tobj, &pstmp))
466 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
469 return x509_object_idx_cnt(h, type, name, NULL);
472 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
476 idx = X509_OBJECT_idx_by_subject(h, type, name);
477 if (idx==-1) return NULL;
478 return sk_X509_OBJECT_value(h, idx);
481 STACK_OF(X509)* X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
487 sk = sk_X509_new_null();
488 CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
489 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
492 /* Nothing found in cache: do lookup to possibly add new
496 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
497 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj))
502 X509_OBJECT_free_contents(&xobj);
503 CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
504 idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_X509,nm, &cnt);
507 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
512 for (i = 0; i < cnt; i++, idx++)
514 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
516 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
517 if (!sk_X509_push(sk, x))
519 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
521 sk_X509_pop_free(sk, X509_free);
525 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
530 STACK_OF(X509_CRL)* X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
533 STACK_OF(X509_CRL) *sk;
535 X509_OBJECT *obj, xobj;
536 sk = sk_X509_CRL_new_null();
537 CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
538 /* Check cache first */
539 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
541 /* Always do lookup to possibly add new CRLs to cache
543 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
544 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj))
546 sk_X509_CRL_free(sk);
549 X509_OBJECT_free_contents(&xobj);
550 CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
551 idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_CRL, nm, &cnt);
554 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
555 sk_X509_CRL_free(sk);
559 for (i = 0; i < cnt; i++, idx++)
561 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
563 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL);
564 if (!sk_X509_CRL_push(sk, x))
566 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
568 sk_X509_CRL_pop_free(sk, X509_CRL_free);
572 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
577 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x)
581 idx = sk_X509_OBJECT_find(h, x);
582 if (idx == -1) return NULL;
583 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
584 return sk_X509_OBJECT_value(h, idx);
585 for (i = idx; i < sk_X509_OBJECT_num(h); i++)
587 obj = sk_X509_OBJECT_value(h, i);
588 if (x509_object_cmp((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
590 if (x->type == X509_LU_X509)
592 if (!X509_cmp(obj->data.x509, x->data.x509))
595 else if (x->type == X509_LU_CRL)
597 if (!X509_CRL_match(obj->data.crl, x->data.crl))
607 /* Try to get issuer certificate from store. Due to limitations
608 * of the API this can only retrieve a single certificate matching
609 * a given subject name. However it will fill the cache with all
610 * matching certificates, so we can examine the cache for all
614 * 1 lookup successful.
615 * 0 certificate not found.
616 * -1 some other error.
620 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
623 X509_OBJECT obj, *pobj;
625 xn=X509_get_issuer_name(x);
626 ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
627 if (ok != X509_LU_X509)
629 if (ok == X509_LU_RETRY)
631 X509_OBJECT_free_contents(&obj);
632 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER,X509_R_SHOULD_RETRY);
635 else if (ok != X509_LU_FAIL)
637 X509_OBJECT_free_contents(&obj);
638 /* not good :-(, break anyway */
643 /* If certificate matches all OK */
644 if (ctx->check_issued(ctx, x, obj.data.x509))
646 *issuer = obj.data.x509;
649 X509_OBJECT_free_contents(&obj);
650 /* Else find index of first matching cert */
651 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
652 /* This shouldn't normally happen since we already have one match */
653 if (idx == -1) return 0;
655 /* Look through all matching certificates for a suitable issuer */
656 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++)
658 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
659 /* See if we've ran out of matches */
660 if (pobj->type != X509_LU_X509) return 0;
661 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509))) return 0;
662 if (ctx->check_issued(ctx, x, pobj->data.x509))
664 *issuer = pobj->data.x509;
665 X509_OBJECT_up_ref_count(pobj);
672 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
674 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
677 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
679 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
683 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
685 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
688 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
690 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
693 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
695 return X509_VERIFY_PARAM_set1(ctx->param, param);
698 IMPLEMENT_STACK_OF(X509_LOOKUP)
699 IMPLEMENT_STACK_OF(X509_OBJECT)