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 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *x509_store_meth=NULL;
67 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
71 ret=(X509_LOOKUP *)OPENSSL_malloc(sizeof(X509_LOOKUP));
72 if (ret == NULL) return NULL;
77 ret->method_data=NULL;
79 if ((method->new_item != NULL) && !method->new_item(ret))
87 void X509_LOOKUP_free(X509_LOOKUP *ctx)
89 if (ctx == NULL) return;
90 if ( (ctx->method != NULL) &&
91 (ctx->method->free != NULL))
92 ctx->method->free(ctx);
96 int X509_LOOKUP_init(X509_LOOKUP *ctx)
98 if (ctx->method == NULL) return 0;
99 if (ctx->method->init != NULL)
100 return ctx->method->init(ctx);
105 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
107 if (ctx->method == NULL) return 0;
108 if (ctx->method->shutdown != NULL)
109 return ctx->method->shutdown(ctx);
114 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
117 if (ctx->method == NULL) return -1;
118 if (ctx->method->ctrl != NULL)
119 return ctx->method->ctrl(ctx,cmd,argc,argl,ret);
124 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
127 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
129 if (ctx->skip) return 0;
130 return ctx->method->get_by_subject(ctx,type,name,ret);
133 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
134 ASN1_INTEGER *serial, X509_OBJECT *ret)
136 if ((ctx->method == NULL) ||
137 (ctx->method->get_by_issuer_serial == NULL))
139 return ctx->method->get_by_issuer_serial(ctx,type,name,serial,ret);
142 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
143 unsigned char *bytes, int len, X509_OBJECT *ret)
145 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
147 return ctx->method->get_by_fingerprint(ctx,type,bytes,len,ret);
150 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
153 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
155 return ctx->method->get_by_alias(ctx,type,str,len,ret);
159 static int x509_object_cmp(const X509_OBJECT * const *a, const X509_OBJECT * const *b)
163 ret=((*a)->type - (*b)->type);
168 ret=X509_subject_name_cmp((*a)->data.x509,(*b)->data.x509);
171 ret=X509_CRL_cmp((*a)->data.crl,(*b)->data.crl);
180 X509_STORE *X509_STORE_new(void)
184 if ((ret=(X509_STORE *)OPENSSL_malloc(sizeof(X509_STORE))) == NULL)
186 ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
188 ret->get_cert_methods=sk_X509_LOOKUP_new_null();
198 ret->check_issued = 0;
199 ret->check_revocation = 0;
205 memset(&ret->ex_data,0,sizeof(CRYPTO_EX_DATA));
211 static void cleanup(X509_OBJECT *a)
213 if (a->type == X509_LU_X509)
215 X509_free(a->data.x509);
217 else if (a->type == X509_LU_CRL)
219 X509_CRL_free(a->data.crl);
229 void X509_STORE_free(X509_STORE *vfy)
232 STACK_OF(X509_LOOKUP) *sk;
238 sk=vfy->get_cert_methods;
239 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
241 lu=sk_X509_LOOKUP_value(sk,i);
242 X509_LOOKUP_shutdown(lu);
243 X509_LOOKUP_free(lu);
245 sk_X509_LOOKUP_free(sk);
246 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
248 CRYPTO_free_ex_data(x509_store_meth,vfy,&vfy->ex_data);
252 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
255 STACK_OF(X509_LOOKUP) *sk;
258 sk=v->get_cert_methods;
259 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
261 lu=sk_X509_LOOKUP_value(sk,i);
268 lu=X509_LOOKUP_new(m);
274 if (sk_X509_LOOKUP_push(v->get_cert_methods,lu))
278 X509_LOOKUP_free(lu);
284 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
287 X509_STORE *ctx=vs->ctx;
289 X509_OBJECT stmp,*tmp;
292 tmp=X509_OBJECT_retrieve_by_subject(ctx->objs,type,name);
296 for (i=vs->current_method; i<sk_X509_LOOKUP_num(ctx->get_cert_methods); i++)
298 lu=sk_X509_LOOKUP_value(ctx->get_cert_methods,i);
299 j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
302 vs->current_method=j;
311 vs->current_method=0;
316 /* if (ret->data.ptr != NULL)
317 X509_OBJECT_free_contents(ret); */
320 ret->data.ptr=tmp->data.ptr;
322 X509_OBJECT_up_ref_count(ret);
327 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
332 if (x == NULL) return 0;
333 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
336 X509err(X509_F_X509_STORE_ADD_CERT,ERR_R_MALLOC_FAILURE);
339 obj->type=X509_LU_X509;
342 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
344 X509_OBJECT_up_ref_count(obj);
347 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
349 X509_OBJECT_free_contents(obj);
351 X509err(X509_F_X509_STORE_ADD_CERT,X509_R_CERT_ALREADY_IN_HASH_TABLE);
354 else sk_X509_OBJECT_push(ctx->objs, obj);
356 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
361 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
366 if (x == NULL) return 0;
367 obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
370 X509err(X509_F_X509_STORE_ADD_CRL,ERR_R_MALLOC_FAILURE);
373 obj->type=X509_LU_CRL;
376 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
378 X509_OBJECT_up_ref_count(obj);
380 if (X509_OBJECT_retrieve_match(ctx->objs, obj))
382 X509_OBJECT_free_contents(obj);
384 X509err(X509_F_X509_STORE_ADD_CRL,X509_R_CERT_ALREADY_IN_HASH_TABLE);
387 else sk_X509_OBJECT_push(ctx->objs, obj);
389 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
394 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
399 CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
402 CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
407 void X509_OBJECT_free_contents(X509_OBJECT *a)
412 X509_free(a->data.x509);
415 X509_CRL_free(a->data.crl);
420 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
427 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 return sk_X509_OBJECT_find(h,&stmp);
450 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
454 idx = X509_OBJECT_idx_by_subject(h, type, name);
455 if (idx==-1) return NULL;
456 return sk_X509_OBJECT_value(h, idx);
459 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x)
463 idx = sk_X509_OBJECT_find(h, x);
464 if (idx == -1) return NULL;
465 if (x->type != X509_LU_X509) return sk_X509_OBJECT_value(h, idx);
466 for (i = idx; i < sk_X509_OBJECT_num(h); i++)
468 obj = sk_X509_OBJECT_value(h, i);
469 if (x509_object_cmp((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
471 if ((x->type != X509_LU_X509) || !X509_cmp(obj->data.x509, x->data.x509))
478 /* Try to get issuer certificate from store. Due to limitations
479 * of the API this can only retrieve a single certificate matching
480 * a given subject name. However it will fill the cache with all
481 * matching certificates, so we can examine the cache for all
485 * 1 lookup successful.
486 * 0 certificate not found.
487 * -1 some other error.
491 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
494 X509_OBJECT obj, *pobj;
496 xn=X509_get_issuer_name(x);
497 ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
498 if (ok != X509_LU_X509)
500 if (ok == X509_LU_RETRY)
502 X509_OBJECT_free_contents(&obj);
503 X509err(X509_F_X509_VERIFY_CERT,X509_R_SHOULD_RETRY);
506 else if (ok != X509_LU_FAIL)
508 X509_OBJECT_free_contents(&obj);
509 /* not good :-(, break anyway */
514 /* If certificate matches all OK */
515 if (ctx->check_issued(ctx, x, obj.data.x509))
517 *issuer = obj.data.x509;
520 X509_OBJECT_free_contents(&obj);
521 /* Else find index of first matching cert */
522 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
523 /* This shouldn't normally happen since we already have one match */
524 if (idx == -1) return 0;
526 /* Look through all matching certificates for a suitable issuer */
527 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++)
529 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
530 /* See if we've ran out of matches */
531 if (pobj->type != X509_LU_X509) return 0;
532 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509))) return 0;
533 if (ctx->check_issued(ctx, x, pobj->data.x509))
535 *issuer = pobj->data.x509;
536 X509_OBJECT_up_ref_count(pobj);
543 void X509_STORE_set_flags(X509_STORE *ctx, long flags)
548 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
550 return X509_PURPOSE_set(&ctx->purpose, purpose);
553 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
555 return X509_TRUST_set(&ctx->trust, trust);
558 IMPLEMENT_STACK_OF(X509_LOOKUP)
559 IMPLEMENT_STACK_OF(X509_OBJECT)