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>
64 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *x509_store_meth=NULL;
66 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
70 ret=(X509_LOOKUP *)OPENSSL_malloc(sizeof(X509_LOOKUP));
71 if (ret == NULL) return(NULL);
76 ret->method_data=NULL;
78 if ((method->new_item != NULL) && !method->new_item(ret))
86 void X509_LOOKUP_free(X509_LOOKUP *ctx)
88 if (ctx == NULL) return;
89 if ( (ctx->method != NULL) &&
90 (ctx->method->free != NULL))
91 ctx->method->free(ctx);
95 int X509_LOOKUP_init(X509_LOOKUP *ctx)
97 if (ctx->method == NULL) return(0);
98 if (ctx->method->init != NULL)
99 return(ctx->method->init(ctx));
104 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
106 if (ctx->method == NULL) return(0);
107 if (ctx->method->shutdown != NULL)
108 return(ctx->method->shutdown(ctx));
113 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
116 if (ctx->method == NULL) return(-1);
117 if (ctx->method->ctrl != NULL)
118 return(ctx->method->ctrl(ctx,cmd,argc,argl,ret));
123 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
126 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
127 return(X509_LU_FAIL);
128 if (ctx->skip) return(0);
129 return(ctx->method->get_by_subject(ctx,type,name,ret));
132 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
133 ASN1_INTEGER *serial, X509_OBJECT *ret)
135 if ((ctx->method == NULL) ||
136 (ctx->method->get_by_issuer_serial == NULL))
137 return(X509_LU_FAIL);
138 return(ctx->method->get_by_issuer_serial(ctx,type,name,serial,ret));
141 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
142 unsigned char *bytes, int len, X509_OBJECT *ret)
144 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
145 return(X509_LU_FAIL);
146 return(ctx->method->get_by_fingerprint(ctx,type,bytes,len,ret));
149 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
152 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
153 return(X509_LU_FAIL);
154 return(ctx->method->get_by_alias(ctx,type,str,len,ret));
158 static int x509_object_cmp(const X509_OBJECT * const *a, const X509_OBJECT * const *b)
162 ret=((*a)->type - (*b)->type);
163 if (ret) return(ret);
167 ret=X509_subject_name_cmp((*a)->data.x509,(*b)->data.x509);
170 ret=X509_CRL_cmp((*a)->data.crl,(*b)->data.crl);
179 X509_STORE *X509_STORE_new(void)
183 if ((ret=(X509_STORE *)OPENSSL_malloc(sizeof(X509_STORE))) == NULL)
185 ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
187 ret->get_cert_methods=sk_X509_LOOKUP_new_null();
190 memset(&ret->ex_data,0,sizeof(CRYPTO_EX_DATA));
196 static void cleanup(X509_OBJECT *a)
198 if (a->type == X509_LU_X509)
200 X509_free(a->data.x509);
202 else if (a->type == X509_LU_CRL)
204 X509_CRL_free(a->data.crl);
214 void X509_STORE_free(X509_STORE *vfy)
217 STACK_OF(X509_LOOKUP) *sk;
223 sk=vfy->get_cert_methods;
224 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
226 lu=sk_X509_LOOKUP_value(sk,i);
227 X509_LOOKUP_shutdown(lu);
228 X509_LOOKUP_free(lu);
230 sk_X509_LOOKUP_free(sk);
231 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
233 CRYPTO_free_ex_data(x509_store_meth,vfy,&vfy->ex_data);
237 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
240 STACK_OF(X509_LOOKUP) *sk;
243 sk=v->get_cert_methods;
244 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
246 lu=sk_X509_LOOKUP_value(sk,i);
253 lu=X509_LOOKUP_new(m);
259 if (sk_X509_LOOKUP_push(v->get_cert_methods,lu))
263 X509_LOOKUP_free(lu);
269 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
272 X509_STORE *ctx=vs->ctx;
274 X509_OBJECT stmp,*tmp;
277 tmp=X509_OBJECT_retrieve_by_subject(ctx->objs,type,name);
281 for (i=vs->current_method; i<sk_X509_LOOKUP_num(ctx->get_cert_methods); i++)
283 lu=sk_X509_LOOKUP_value(ctx->get_cert_methods,i);
284 j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
287 vs->current_method=j;
296 vs->current_method=0;
301 /* if (ret->data.ptr != NULL)
302 X509_OBJECT_free_contents(ret); */
305 ret->data.ptr=tmp->data.ptr;
307 X509_OBJECT_up_ref_count(ret);
312 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
317 if (x == NULL) return(0);
318 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
321 X509err(X509_F_X509_STORE_ADD_CERT,ERR_R_MALLOC_FAILURE);
324 obj->type=X509_LU_X509;
327 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
329 X509_OBJECT_up_ref_count(obj);
332 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
334 X509_OBJECT_free_contents(obj);
336 X509err(X509_F_X509_STORE_ADD_CERT,X509_R_CERT_ALREADY_IN_HASH_TABLE);
339 else sk_X509_OBJECT_push(ctx->objs, obj);
341 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
346 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
351 if (x == NULL) return(0);
352 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
355 X509err(X509_F_X509_STORE_ADD_CRL,ERR_R_MALLOC_FAILURE);
358 obj->type=X509_LU_CRL;
361 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
363 X509_OBJECT_up_ref_count(obj);
365 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
367 X509_OBJECT_free_contents(obj);
369 X509err(X509_F_X509_STORE_ADD_CRL,X509_R_CERT_ALREADY_IN_HASH_TABLE);
372 else sk_X509_OBJECT_push(ctx->objs, obj);
374 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
379 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
384 CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
387 CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
392 void X509_OBJECT_free_contents(X509_OBJECT *a)
397 X509_free(a->data.x509);
400 X509_CRL_free(a->data.crl);
405 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
412 X509_CRL_INFO crl_info_s;
418 stmp.data.x509= &x509_s;
419 x509_s.cert_info= &cinf_s;
423 stmp.data.crl= &crl_s;
424 crl_s.crl= &crl_info_s;
425 crl_info_s.issuer=name;
432 return sk_X509_OBJECT_find(h,&stmp);
435 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
439 idx = X509_OBJECT_idx_by_subject(h, type, name);
440 if(idx==-1) return NULL;
441 return sk_X509_OBJECT_value(h, idx);
444 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x)
448 idx = sk_X509_OBJECT_find(h, x);
449 if(idx == -1) return NULL;
450 if(x->type != X509_LU_X509) return sk_X509_OBJECT_value(h, idx);
451 for(i = idx; i < sk_X509_OBJECT_num(h); i++) {
452 obj = sk_X509_OBJECT_value(h, i);
453 if(x509_object_cmp((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x)) return NULL;
454 if((x->type != X509_LU_X509) || !X509_cmp(obj->data.x509, x->data.x509)) return obj;
460 /* Try to get issuer certificate from store. Due to limitations
461 * of the API this can only retrieve a single certificate matching
462 * a given subject name. However it will fill the cache with all
463 * matching certificates, so we can examine the cache for all
467 * 1 lookup successful.
468 * 0 certificate not found.
469 * -1 some other error.
473 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
476 X509_OBJECT obj, *pobj;
478 xn=X509_get_issuer_name(x);
479 ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
480 if (ok != X509_LU_X509)
482 if (ok == X509_LU_RETRY)
484 X509_OBJECT_free_contents(&obj);
485 X509err(X509_F_X509_VERIFY_CERT,X509_R_SHOULD_RETRY);
488 else if (ok != X509_LU_FAIL)
490 X509_OBJECT_free_contents(&obj);
491 /* not good :-(, break anyway */
496 /* If certificate matches all OK */
497 if(ctx->check_issued(ctx, x, obj.data.x509)) {
498 *issuer = obj.data.x509;
501 X509_OBJECT_free_contents(&obj);
502 /* Else find index of first matching cert */
503 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
504 /* This shouldn't normally happen since we already have one match */
505 if(idx == -1) return 0;
507 /* Look through all matching certificates for a suitable issuer */
508 for(i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
509 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
510 /* See if we've ran out of matches */
511 if(pobj->type != X509_LU_X509) return 0;
512 if(X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509))) return 0;
513 if(ctx->check_issued(ctx, x, pobj->data.x509)) {
514 *issuer = pobj->data.x509;
515 X509_OBJECT_up_ref_count(pobj);
522 IMPLEMENT_STACK_OF(X509_LOOKUP)
523 IMPLEMENT_STACK_OF(X509_OBJECT)