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;
201 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data);
206 static void cleanup(X509_OBJECT *a)
208 if (a->type == X509_LU_X509)
210 X509_free(a->data.x509);
212 else if (a->type == X509_LU_CRL)
214 X509_CRL_free(a->data.crl);
224 void X509_STORE_free(X509_STORE *vfy)
227 STACK_OF(X509_LOOKUP) *sk;
233 sk=vfy->get_cert_methods;
234 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
236 lu=sk_X509_LOOKUP_value(sk,i);
237 X509_LOOKUP_shutdown(lu);
238 X509_LOOKUP_free(lu);
240 sk_X509_LOOKUP_free(sk);
241 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
243 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
245 X509_VERIFY_PARAM_free(vfy->param);
249 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
252 STACK_OF(X509_LOOKUP) *sk;
255 sk=v->get_cert_methods;
256 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
258 lu=sk_X509_LOOKUP_value(sk,i);
265 lu=X509_LOOKUP_new(m);
271 if (sk_X509_LOOKUP_push(v->get_cert_methods,lu))
275 X509_LOOKUP_free(lu);
281 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
284 X509_STORE *ctx=vs->ctx;
286 X509_OBJECT stmp,*tmp;
289 tmp=X509_OBJECT_retrieve_by_subject(ctx->objs,type,name);
291 if (tmp == NULL || type == X509_LU_CRL)
293 for (i=vs->current_method; i<sk_X509_LOOKUP_num(ctx->get_cert_methods); i++)
295 lu=sk_X509_LOOKUP_value(ctx->get_cert_methods,i);
296 j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
299 vs->current_method=j;
308 vs->current_method=0;
313 /* if (ret->data.ptr != NULL)
314 X509_OBJECT_free_contents(ret); */
317 ret->data.ptr=tmp->data.ptr;
319 X509_OBJECT_up_ref_count(ret);
324 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
329 if (x == NULL) return 0;
330 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
333 X509err(X509_F_X509_STORE_ADD_CERT,ERR_R_MALLOC_FAILURE);
336 obj->type=X509_LU_X509;
339 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
341 X509_OBJECT_up_ref_count(obj);
344 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
346 X509_OBJECT_free_contents(obj);
348 X509err(X509_F_X509_STORE_ADD_CERT,X509_R_CERT_ALREADY_IN_HASH_TABLE);
351 else sk_X509_OBJECT_push(ctx->objs, obj);
353 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
358 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
363 if (x == NULL) return 0;
364 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
367 X509err(X509_F_X509_STORE_ADD_CRL,ERR_R_MALLOC_FAILURE);
370 obj->type=X509_LU_CRL;
373 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
375 X509_OBJECT_up_ref_count(obj);
377 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
379 X509_OBJECT_free_contents(obj);
381 X509err(X509_F_X509_STORE_ADD_CRL,X509_R_CERT_ALREADY_IN_HASH_TABLE);
384 else sk_X509_OBJECT_push(ctx->objs, obj);
386 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
391 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
396 CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
399 CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
404 void X509_OBJECT_free_contents(X509_OBJECT *a)
409 X509_free(a->data.x509);
412 X509_CRL_free(a->data.crl);
417 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
418 X509_NAME *name, int *pnmatch)
424 X509_CRL_INFO crl_info_s;
431 stmp.data.x509= &x509_s;
432 x509_s.cert_info= &cinf_s;
436 stmp.data.crl= &crl_s;
437 crl_s.crl= &crl_info_s;
438 crl_info_s.issuer=name;
445 idx = sk_X509_OBJECT_find(h,&stmp);
446 if (idx >= 0 && pnmatch)
449 const X509_OBJECT *tobj, *pstmp;
452 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++)
454 tobj = sk_X509_OBJECT_value(h, tidx);
455 if (x509_object_cmp(&tobj, &pstmp))
464 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
467 return x509_object_idx_cnt(h, type, name, NULL);
470 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
474 idx = X509_OBJECT_idx_by_subject(h, type, name);
475 if (idx==-1) return NULL;
476 return sk_X509_OBJECT_value(h, idx);
479 STACK_OF(X509)* X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
485 sk = sk_X509_new_null();
486 CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
487 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
490 /* Nothing found in cache: do lookup to possibly add new
494 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
495 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj))
500 X509_OBJECT_free_contents(&xobj);
501 CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
502 idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_X509,nm, &cnt);
505 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
510 for (i = 0; i < cnt; i++, idx++)
512 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
514 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
515 if (!sk_X509_push(sk, x))
517 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
519 sk_X509_pop_free(sk, X509_free);
523 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
528 STACK_OF(X509_CRL)* X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
531 STACK_OF(X509_CRL) *sk;
533 X509_OBJECT *obj, xobj;
534 sk = sk_X509_CRL_new_null();
535 CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
536 /* Check cache first */
537 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
539 /* Always do lookup to possibly add new CRLs to cache
541 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
542 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj))
544 sk_X509_CRL_free(sk);
547 X509_OBJECT_free_contents(&xobj);
548 CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
549 idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_CRL, nm, &cnt);
552 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
553 sk_X509_CRL_free(sk);
557 for (i = 0; i < cnt; i++, idx++)
559 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
561 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL);
562 if (!sk_X509_CRL_push(sk, x))
564 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
566 sk_X509_CRL_pop_free(sk, X509_CRL_free);
570 CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
575 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x)
579 idx = sk_X509_OBJECT_find(h, x);
580 if (idx == -1) return NULL;
581 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
582 return sk_X509_OBJECT_value(h, idx);
583 for (i = idx; i < sk_X509_OBJECT_num(h); i++)
585 obj = sk_X509_OBJECT_value(h, i);
586 if (x509_object_cmp((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
588 if (x->type == X509_LU_X509)
590 if (!X509_cmp(obj->data.x509, x->data.x509))
593 else if (x->type == X509_LU_CRL)
595 if (!X509_CRL_match(obj->data.crl, x->data.crl))
605 /* Try to get issuer certificate from store. Due to limitations
606 * of the API this can only retrieve a single certificate matching
607 * a given subject name. However it will fill the cache with all
608 * matching certificates, so we can examine the cache for all
612 * 1 lookup successful.
613 * 0 certificate not found.
614 * -1 some other error.
618 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
621 X509_OBJECT obj, *pobj;
623 xn=X509_get_issuer_name(x);
624 ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
625 if (ok != X509_LU_X509)
627 if (ok == X509_LU_RETRY)
629 X509_OBJECT_free_contents(&obj);
630 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER,X509_R_SHOULD_RETRY);
633 else if (ok != X509_LU_FAIL)
635 X509_OBJECT_free_contents(&obj);
636 /* not good :-(, break anyway */
641 /* If certificate matches all OK */
642 if (ctx->check_issued(ctx, x, obj.data.x509))
644 *issuer = obj.data.x509;
647 X509_OBJECT_free_contents(&obj);
648 /* Else find index of first matching cert */
649 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
650 /* This shouldn't normally happen since we already have one match */
651 if (idx == -1) return 0;
653 /* Look through all matching certificates for a suitable issuer */
654 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++)
656 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
657 /* See if we've ran out of matches */
658 if (pobj->type != X509_LU_X509) return 0;
659 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509))) return 0;
660 if (ctx->check_issued(ctx, x, pobj->data.x509))
662 *issuer = pobj->data.x509;
663 X509_OBJECT_up_ref_count(pobj);
670 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
672 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
675 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
677 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
681 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
683 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
686 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
688 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
691 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
693 return X509_VERIFY_PARAM_set1(ctx->param, param);
696 IMPLEMENT_STACK_OF(X509_LOOKUP)
697 IMPLEMENT_STACK_OF(X509_OBJECT)