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 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data))
205 sk_X509_OBJECT_free(ret->objs);
214 static void cleanup(X509_OBJECT *a)
216 if (a->type == X509_LU_X509)
218 X509_free(a->data.x509);
220 else if (a->type == X509_LU_CRL)
222 X509_CRL_free(a->data.crl);
232 void X509_STORE_free(X509_STORE *vfy)
235 STACK_OF(X509_LOOKUP) *sk;
241 i=CRYPTO_add(&vfy->references,-1,CRYPTO_LOCK_X509_STORE);
243 REF_PRINT("X509_STORE",vfy);
249 fprintf(stderr,"X509_STORE_free, bad reference count\n");
254 sk=vfy->get_cert_methods;
255 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
257 lu=sk_X509_LOOKUP_value(sk,i);
258 X509_LOOKUP_shutdown(lu);
259 X509_LOOKUP_free(lu);
261 sk_X509_LOOKUP_free(sk);
262 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
264 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
266 X509_VERIFY_PARAM_free(vfy->param);
270 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
273 STACK_OF(X509_LOOKUP) *sk;
276 sk=v->get_cert_methods;
277 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
279 lu=sk_X509_LOOKUP_value(sk,i);
286 lu=X509_LOOKUP_new(m);
292 if (sk_X509_LOOKUP_push(v->get_cert_methods,lu))
296 X509_LOOKUP_free(lu);
302 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
305 X509_STORE *ctx=vs->ctx;
307 X509_OBJECT stmp,*tmp;
310 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
311 tmp=X509_OBJECT_retrieve_by_subject(ctx->objs,type,name);
312 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
314 if (tmp == NULL || type == X509_LU_CRL)
316 for (i=vs->current_method; i<sk_X509_LOOKUP_num(ctx->get_cert_methods); i++)
318 lu=sk_X509_LOOKUP_value(ctx->get_cert_methods,i);
319 j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
322 vs->current_method=j;
331 vs->current_method=0;
336 /* if (ret->data.ptr != NULL)
337 X509_OBJECT_free_contents(ret); */
340 ret->data.ptr=tmp->data.ptr;
342 X509_OBJECT_up_ref_count(ret);
347 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
352 if (x == NULL) return 0;
353 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
356 X509err(X509_F_X509_STORE_ADD_CERT,ERR_R_MALLOC_FAILURE);
359 obj->type=X509_LU_X509;
362 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
364 X509_OBJECT_up_ref_count(obj);
366 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
368 X509_OBJECT_free_contents(obj);
370 X509err(X509_F_X509_STORE_ADD_CERT,X509_R_CERT_ALREADY_IN_HASH_TABLE);
373 else sk_X509_OBJECT_push(ctx->objs, obj);
375 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
380 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
385 if (x == NULL) return 0;
386 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
389 X509err(X509_F_X509_STORE_ADD_CRL,ERR_R_MALLOC_FAILURE);
392 obj->type=X509_LU_CRL;
395 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
397 X509_OBJECT_up_ref_count(obj);
399 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
401 X509_OBJECT_free_contents(obj);
403 X509err(X509_F_X509_STORE_ADD_CRL,X509_R_CERT_ALREADY_IN_HASH_TABLE);
406 else sk_X509_OBJECT_push(ctx->objs, obj);
408 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
413 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
418 CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
421 CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
426 void X509_OBJECT_free_contents(X509_OBJECT *a)
431 X509_free(a->data.x509);
434 X509_CRL_free(a->data.crl);
439 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
440 X509_NAME *name, int *pnmatch)
446 X509_CRL_INFO crl_info_s;
453 stmp.data.x509= &x509_s;
454 x509_s.cert_info= &cinf_s;
458 stmp.data.crl= &crl_s;
459 crl_s.crl= &crl_info_s;
460 crl_info_s.issuer=name;
467 idx = sk_X509_OBJECT_find(h,&stmp);
468 if (idx >= 0 && pnmatch)
471 const X509_OBJECT *tobj, *pstmp;
474 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++)
476 tobj = sk_X509_OBJECT_value(h, tidx);
477 if (x509_object_cmp(&tobj, &pstmp))
486 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
489 return x509_object_idx_cnt(h, type, name, NULL);
492 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
496 idx = X509_OBJECT_idx_by_subject(h, type, name);
497 if (idx==-1) return NULL;
498 return sk_X509_OBJECT_value(h, idx);
501 STACK_OF(X509)* X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
507 sk = sk_X509_new_null();
508 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
509 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
512 /* Nothing found in cache: do lookup to possibly add new
516 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
517 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj))
522 X509_OBJECT_free_contents(&xobj);
523 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
524 idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_X509,nm, &cnt);
527 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
532 for (i = 0; i < cnt; i++, idx++)
534 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
536 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
537 if (!sk_X509_push(sk, x))
539 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
541 sk_X509_pop_free(sk, X509_free);
545 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
550 STACK_OF(X509_CRL)* X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
553 STACK_OF(X509_CRL) *sk;
555 X509_OBJECT *obj, xobj;
556 sk = sk_X509_CRL_new_null();
557 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
558 /* Check cache first */
559 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
561 /* Always do lookup to possibly add new CRLs to cache
563 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
564 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj))
566 sk_X509_CRL_free(sk);
569 X509_OBJECT_free_contents(&xobj);
570 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
571 idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_CRL, nm, &cnt);
574 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
575 sk_X509_CRL_free(sk);
579 for (i = 0; i < cnt; i++, idx++)
581 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
583 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL);
584 if (!sk_X509_CRL_push(sk, x))
586 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
588 sk_X509_CRL_pop_free(sk, X509_CRL_free);
592 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
596 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x)
600 idx = sk_X509_OBJECT_find(h, x);
601 if (idx == -1) return NULL;
602 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
603 return sk_X509_OBJECT_value(h, idx);
604 for (i = idx; i < sk_X509_OBJECT_num(h); i++)
606 obj = sk_X509_OBJECT_value(h, i);
607 if (x509_object_cmp((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
609 if (x->type == X509_LU_X509)
611 if (!X509_cmp(obj->data.x509, x->data.x509))
614 else if (x->type == X509_LU_CRL)
616 if (!X509_CRL_match(obj->data.crl, x->data.crl))
626 /* Try to get issuer certificate from store. Due to limitations
627 * of the API this can only retrieve a single certificate matching
628 * a given subject name. However it will fill the cache with all
629 * matching certificates, so we can examine the cache for all
633 * 1 lookup successful.
634 * 0 certificate not found.
635 * -1 some other error.
637 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
640 X509_OBJECT obj, *pobj;
642 xn=X509_get_issuer_name(x);
643 ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
644 if (ok != X509_LU_X509)
646 if (ok == X509_LU_RETRY)
648 X509_OBJECT_free_contents(&obj);
649 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER,X509_R_SHOULD_RETRY);
652 else if (ok != X509_LU_FAIL)
654 X509_OBJECT_free_contents(&obj);
655 /* not good :-(, break anyway */
660 /* If certificate matches all OK */
661 if (ctx->check_issued(ctx, x, obj.data.x509))
663 *issuer = obj.data.x509;
666 X509_OBJECT_free_contents(&obj);
668 /* Else find index of first cert accepted by 'check_issued' */
670 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
671 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
672 if (idx != -1) /* should be true as we've had at least one match */
674 /* Look through all matching certs for suitable issuer */
675 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++)
677 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
678 /* See if we've run past the matches */
679 if (pobj->type != X509_LU_X509)
681 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
683 if (ctx->check_issued(ctx, x, pobj->data.x509))
685 *issuer = pobj->data.x509;
686 X509_OBJECT_up_ref_count(pobj);
692 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
696 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
698 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
701 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
703 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
707 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
709 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
712 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
714 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
717 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
719 return X509_VERIFY_PARAM_set1(ctx->param, param);
722 void X509_STORE_set_verify_cb(X509_STORE *ctx,
723 int (*verify_cb)(int, X509_STORE_CTX *))
725 ctx->verify_cb = verify_cb;
728 IMPLEMENT_STACK_OF(X509_LOOKUP)
729 IMPLEMENT_STACK_OF(X509_OBJECT)