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diff --git a/src/lib/libcrypto/x509/x509_lu.c b/src/lib/libcrypto/x509/x509_lu.c
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1/* crypto/x509/x509_lu.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
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.
8 *
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).
15 *
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.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
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)"
40 *
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
51 * SUCH DAMAGE.
52 *
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.]
57 */
58
59#include <stdio.h>
60#include "cryptlib.h"
61#include <openssl/lhash.h>
62#include <openssl/x509.h>
63
64static STACK *x509_store_meth=NULL;
65static STACK *x509_store_ctx_meth=NULL;
66
67X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
68 {
69 X509_LOOKUP *ret;
70
71 ret=(X509_LOOKUP *)Malloc(sizeof(X509_LOOKUP));
72 if (ret == NULL) return(NULL);
73
74 ret->init=0;
75 ret->skip=0;
76 ret->method=method;
77 ret->method_data=NULL;
78 ret->store_ctx=NULL;
79 if ((method->new_item != NULL) && !method->new_item(ret))
80 {
81 Free(ret);
82 return(NULL);
83 }
84 return(ret);
85 }
86
87void X509_LOOKUP_free(X509_LOOKUP *ctx)
88 {
89 if (ctx == NULL) return;
90 if ( (ctx->method != NULL) &&
91 (ctx->method->free != NULL))
92 ctx->method->free(ctx);
93 Free(ctx);
94 }
95
96int X509_LOOKUP_init(X509_LOOKUP *ctx)
97 {
98 if (ctx->method == NULL) return(0);
99 if (ctx->method->init != NULL)
100 return(ctx->method->init(ctx));
101 else
102 return(1);
103 }
104
105int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
106 {
107 if (ctx->method == NULL) return(0);
108 if (ctx->method->shutdown != NULL)
109 return(ctx->method->shutdown(ctx));
110 else
111 return(1);
112 }
113
114int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
115 char **ret)
116 {
117 if (ctx->method == NULL) return(-1);
118 if (ctx->method->ctrl != NULL)
119 return(ctx->method->ctrl(ctx,cmd,argc,argl,ret));
120 else
121 return(1);
122 }
123
124int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
125 X509_OBJECT *ret)
126 {
127 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
128 return(X509_LU_FAIL);
129 if (ctx->skip) return(0);
130 return(ctx->method->get_by_subject(ctx,type,name,ret));
131 }
132
133int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
134 ASN1_INTEGER *serial, X509_OBJECT *ret)
135 {
136 if ((ctx->method == NULL) ||
137 (ctx->method->get_by_issuer_serial == NULL))
138 return(X509_LU_FAIL);
139 return(ctx->method->get_by_issuer_serial(ctx,type,name,serial,ret));
140 }
141
142int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
143 unsigned char *bytes, int len, X509_OBJECT *ret)
144 {
145 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
146 return(X509_LU_FAIL);
147 return(ctx->method->get_by_fingerprint(ctx,type,bytes,len,ret));
148 }
149
150int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
151 X509_OBJECT *ret)
152 {
153 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
154 return(X509_LU_FAIL);
155 return(ctx->method->get_by_alias(ctx,type,str,len,ret));
156 }
157
158static unsigned long x509_object_hash(X509_OBJECT *a)
159 {
160 unsigned long h;
161
162 switch (a->type)
163 {
164 case X509_LU_X509:
165 h=X509_NAME_hash(a->data.x509->cert_info->subject);
166 break;
167 case X509_LU_CRL:
168 h=X509_NAME_hash(a->data.crl->crl->issuer);
169 break;
170 default:
171 abort();
172 }
173 return(h);
174 }
175
176static int x509_object_cmp(X509_OBJECT *a, X509_OBJECT *b)
177 {
178 int ret;
179
180 ret=(a->type - b->type);
181 if (ret) return(ret);
182 switch (a->type)
183 {
184 case X509_LU_X509:
185 ret=X509_subject_name_cmp(a->data.x509,b->data.x509);
186 break;
187 case X509_LU_CRL:
188 ret=X509_CRL_cmp(a->data.crl,b->data.crl);
189 break;
190 default:
191 abort();
192 }
193 return(ret);
194 }
195
196X509_STORE *X509_STORE_new(void)
197 {
198 X509_STORE *ret;
199
200 if ((ret=(X509_STORE *)Malloc(sizeof(X509_STORE))) == NULL)
201 return(NULL);
202 ret->certs=lh_new(x509_object_hash,x509_object_cmp);
203 ret->cache=1;
204 ret->get_cert_methods=sk_X509_LOOKUP_new_null();
205 ret->verify=NULL;
206 ret->verify_cb=NULL;
207 memset(&ret->ex_data,0,sizeof(CRYPTO_EX_DATA));
208 ret->references=1;
209 ret->depth=0;
210 return(ret);
211 }
212
213static void cleanup(X509_OBJECT *a)
214 {
215 if (a->type == X509_LU_X509)
216 {
217 X509_free(a->data.x509);
218 }
219 else if (a->type == X509_LU_CRL)
220 {
221 X509_CRL_free(a->data.crl);
222 }
223 else
224 abort();
225
226 Free(a);
227 }
228
229void X509_STORE_free(X509_STORE *vfy)
230 {
231 int i;
232 STACK_OF(X509_LOOKUP) *sk;
233 X509_LOOKUP *lu;
234
235 if(vfy == NULL)
236 return;
237
238 sk=vfy->get_cert_methods;
239 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
240 {
241 lu=sk_X509_LOOKUP_value(sk,i);
242 X509_LOOKUP_shutdown(lu);
243 X509_LOOKUP_free(lu);
244 }
245 sk_X509_LOOKUP_free(sk);
246
247 CRYPTO_free_ex_data(x509_store_meth,(char *)vfy,&vfy->ex_data);
248 lh_doall(vfy->certs,cleanup);
249 lh_free(vfy->certs);
250 Free(vfy);
251 }
252
253X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
254 {
255 int i;
256 STACK_OF(X509_LOOKUP) *sk;
257 X509_LOOKUP *lu;
258
259 sk=v->get_cert_methods;
260 for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
261 {
262 lu=sk_X509_LOOKUP_value(sk,i);
263 if (m == lu->method)
264 {
265 return(lu);
266 }
267 }
268 /* a new one */
269 lu=X509_LOOKUP_new(m);
270 if (lu == NULL)
271 return(NULL);
272 else
273 {
274 lu->store_ctx=v;
275 if (sk_X509_LOOKUP_push(v->get_cert_methods,lu))
276 return(lu);
277 else
278 {
279 X509_LOOKUP_free(lu);
280 return(NULL);
281 }
282 }
283 }
284
285int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
286 X509_OBJECT *ret)
287 {
288 X509_STORE *ctx=vs->ctx;
289 X509_LOOKUP *lu;
290 X509_OBJECT stmp,*tmp;
291 int i,j;
292
293 tmp=X509_OBJECT_retrieve_by_subject(ctx->certs,type,name);
294
295 if (tmp == NULL)
296 {
297 for (i=vs->current_method; i<sk_X509_LOOKUP_num(ctx->get_cert_methods); i++)
298 {
299 lu=sk_X509_LOOKUP_value(ctx->get_cert_methods,i);
300 j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
301 if (j < 0)
302 {
303 vs->current_method=j;
304 return(j);
305 }
306 else if (j)
307 {
308 tmp= &stmp;
309 break;
310 }
311 }
312 vs->current_method=0;
313 if (tmp == NULL)
314 return(0);
315 }
316
317/* if (ret->data.ptr != NULL)
318 X509_OBJECT_free_contents(ret); */
319
320 ret->type=tmp->type;
321 ret->data.ptr=tmp->data.ptr;
322
323 X509_OBJECT_up_ref_count(ret);
324
325 return(1);
326 }
327
328void X509_OBJECT_up_ref_count(X509_OBJECT *a)
329 {
330 switch (a->type)
331 {
332 case X509_LU_X509:
333 CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
334 break;
335 case X509_LU_CRL:
336 CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
337 break;
338 }
339 }
340
341void X509_OBJECT_free_contents(X509_OBJECT *a)
342 {
343 switch (a->type)
344 {
345 case X509_LU_X509:
346 X509_free(a->data.x509);
347 break;
348 case X509_LU_CRL:
349 X509_CRL_free(a->data.crl);
350 break;
351 }
352 }
353
354X509_OBJECT *X509_OBJECT_retrieve_by_subject(LHASH *h, int type,
355 X509_NAME *name)
356 {
357 X509_OBJECT stmp,*tmp;
358 X509 x509_s;
359 X509_CINF cinf_s;
360 X509_CRL crl_s;
361 X509_CRL_INFO crl_info_s;
362
363 stmp.type=type;
364 switch (type)
365 {
366 case X509_LU_X509:
367 stmp.data.x509= &x509_s;
368 x509_s.cert_info= &cinf_s;
369 cinf_s.subject=name;
370 break;
371 case X509_LU_CRL:
372 stmp.data.crl= &crl_s;
373 crl_s.crl= &crl_info_s;
374 crl_info_s.issuer=name;
375 break;
376 default:
377 abort();
378 }
379
380 tmp=(X509_OBJECT *)lh_retrieve(h,(char *)&stmp);
381 return(tmp);
382 }
383
384void X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store, X509 *x509,
385 STACK_OF(X509) *chain)
386 {
387 ctx->ctx=store;
388 ctx->current_method=0;
389 ctx->cert=x509;
390 ctx->untrusted=chain;
391 ctx->last_untrusted=0;
392 ctx->valid=0;
393 ctx->chain=NULL;
394 ctx->depth=9;
395 ctx->error=0;
396 ctx->current_cert=NULL;
397 memset(&(ctx->ex_data),0,sizeof(CRYPTO_EX_DATA));
398 }
399
400void X509_STORE_CTX_cleanup(X509_STORE_CTX *ctx)
401 {
402 if (ctx->chain != NULL)
403 {
404 sk_X509_pop_free(ctx->chain,X509_free);
405 ctx->chain=NULL;
406 }
407 CRYPTO_free_ex_data(x509_store_ctx_meth,(char *)ctx,&(ctx->ex_data));
408 memset(&ctx->ex_data,0,sizeof(CRYPTO_EX_DATA));
409 }
410
411IMPLEMENT_STACK_OF(X509_LOOKUP)
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