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))
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))
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))
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))
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);
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();
197 ret->check_issued = 0;
198 ret->check_revocation = 0;
204 memset(&ret->ex_data,0,sizeof(CRYPTO_EX_DATA));
210 static void cleanup(X509_OBJECT *a)
212 if (a->type == X509_LU_X509)
214 X509_free(a->data.x509);
216 else if (a->type == X509_LU_CRL)
218 X509_CRL_free(a->data.crl);
228 void X509_STORE_free(X509_STORE *vfy)
231 STACK_OF(X509_LOOKUP) *sk;
237 sk=vfy->get_cert_methods;
238 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
240 lu=sk_X509_LOOKUP_value(sk,i);
241 X509_LOOKUP_shutdown(lu);
242 X509_LOOKUP_free(lu);
244 sk_X509_LOOKUP_free(sk);
245 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
247 CRYPTO_free_ex_data(x509_store_meth,vfy,&vfy->ex_data);
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);
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 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
426 X509_CRL_INFO crl_info_s;
432 stmp.data.x509= &x509_s;
433 x509_s.cert_info= &cinf_s;
437 stmp.data.crl= &crl_s;
438 crl_s.crl= &crl_info_s;
439 crl_info_s.issuer=name;
446 return sk_X509_OBJECT_find(h,&stmp);
449 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
453 idx = X509_OBJECT_idx_by_subject(h, type, name);
454 if (idx==-1) return NULL;
455 return sk_X509_OBJECT_value(h, idx);
458 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x)
462 idx = sk_X509_OBJECT_find(h, x);
463 if (idx == -1) return NULL;
464 if (x->type != X509_LU_X509) return sk_X509_OBJECT_value(h, idx);
465 for (i = idx; i < sk_X509_OBJECT_num(h); i++)
467 obj = sk_X509_OBJECT_value(h, i);
468 if (x509_object_cmp((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
470 if ((x->type != X509_LU_X509) || !X509_cmp(obj->data.x509, x->data.x509))
477 /* Try to get issuer certificate from store. Due to limitations
478 * of the API this can only retrieve a single certificate matching
479 * a given subject name. However it will fill the cache with all
480 * matching certificates, so we can examine the cache for all
484 * 1 lookup successful.
485 * 0 certificate not found.
486 * -1 some other error.
490 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
493 X509_OBJECT obj, *pobj;
495 xn=X509_get_issuer_name(x);
496 ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
497 if (ok != X509_LU_X509)
499 if (ok == X509_LU_RETRY)
501 X509_OBJECT_free_contents(&obj);
502 X509err(X509_F_X509_VERIFY_CERT,X509_R_SHOULD_RETRY);
505 else if (ok != X509_LU_FAIL)
507 X509_OBJECT_free_contents(&obj);
508 /* not good :-(, break anyway */
513 /* If certificate matches all OK */
514 if (ctx->check_issued(ctx, x, obj.data.x509))
516 *issuer = obj.data.x509;
519 X509_OBJECT_free_contents(&obj);
520 /* Else find index of first matching cert */
521 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
522 /* This shouldn't normally happen since we already have one match */
523 if (idx == -1) return 0;
525 /* Look through all matching certificates for a suitable issuer */
526 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++)
528 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
529 /* See if we've ran out of matches */
530 if (pobj->type != X509_LU_X509) return 0;
531 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509))) return 0;
532 if (ctx->check_issued(ctx, x, pobj->data.x509))
534 *issuer = pobj->data.x509;
535 X509_OBJECT_up_ref_count(pobj);
542 void X509_STORE_set_flags(X509_STORE *ctx, long flags)
547 IMPLEMENT_STACK_OF(X509_LOOKUP)
548 IMPLEMENT_STACK_OF(X509_OBJECT)