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authorcvs2svn <admin@example.com>2002-03-12 00:05:45 +0000
committercvs2svn <admin@example.com>2002-03-12 00:05:45 +0000
commit3779f2f4a8b544a7e4c362915322726b66cff114 (patch)
treeb6d77e66cbfdf6c0d8953fba2917f26f86fa50f6 /src/lib/libcrypto/x509/x509_vfy.h
parentf39945c2b3b0f9e4950384bdb8effdac6eed9199 (diff)
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1/* crypto/x509/x509_vfy.h */
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#ifndef HEADER_X509_H
60#include <openssl/x509.h>
61/* openssl/x509.h ends up #include-ing this file at about the only
62 * appropriate moment. */
63#endif
64
65#ifndef HEADER_X509_VFY_H
66#define HEADER_X509_VFY_H
67
68#ifndef NO_LHASH
69#include <openssl/lhash.h>
70#endif
71#include <openssl/bio.h>
72#include <openssl/crypto.h>
73
74#ifdef __cplusplus
75extern "C" {
76#endif
77
78/* Outer object */
79typedef struct x509_hash_dir_st
80 {
81 int num_dirs;
82 char **dirs;
83 int *dirs_type;
84 int num_dirs_alloced;
85 } X509_HASH_DIR_CTX;
86
87typedef struct x509_file_st
88 {
89 int num_paths; /* number of paths to files or directories */
90 int num_alloced;
91 char **paths; /* the list of paths or directories */
92 int *path_type;
93 } X509_CERT_FILE_CTX;
94
95/*******************************/
96/*
97SSL_CTX -> X509_STORE
98 -> X509_LOOKUP
99 ->X509_LOOKUP_METHOD
100 -> X509_LOOKUP
101 ->X509_LOOKUP_METHOD
102
103SSL -> X509_STORE_CTX
104 ->X509_STORE
105
106The X509_STORE holds the tables etc for verification stuff.
107A X509_STORE_CTX is used while validating a single certificate.
108The X509_STORE has X509_LOOKUPs for looking up certs.
109The X509_STORE then calls a function to actually verify the
110certificate chain.
111*/
112
113#define X509_LU_RETRY -1
114#define X509_LU_FAIL 0
115#define X509_LU_X509 1
116#define X509_LU_CRL 2
117#define X509_LU_PKEY 3
118
119typedef struct x509_object_st
120 {
121 /* one of the above types */
122 int type;
123 union {
124 char *ptr;
125 X509 *x509;
126 X509_CRL *crl;
127 EVP_PKEY *pkey;
128 } data;
129 } X509_OBJECT;
130
131typedef struct x509_lookup_st X509_LOOKUP;
132
133DECLARE_STACK_OF(X509_LOOKUP)
134DECLARE_STACK_OF(X509_OBJECT)
135
136/* This is a static that defines the function interface */
137typedef struct x509_lookup_method_st
138 {
139 const char *name;
140 int (*new_item)(X509_LOOKUP *ctx);
141 void (*free)(X509_LOOKUP *ctx);
142 int (*init)(X509_LOOKUP *ctx);
143 int (*shutdown)(X509_LOOKUP *ctx);
144 int (*ctrl)(X509_LOOKUP *ctx,int cmd,const char *argc,long argl,
145 char **ret);
146 int (*get_by_subject)(X509_LOOKUP *ctx,int type,X509_NAME *name,
147 X509_OBJECT *ret);
148 int (*get_by_issuer_serial)(X509_LOOKUP *ctx,int type,X509_NAME *name,
149 ASN1_INTEGER *serial,X509_OBJECT *ret);
150 int (*get_by_fingerprint)(X509_LOOKUP *ctx,int type,
151 unsigned char *bytes,int len,
152 X509_OBJECT *ret);
153 int (*get_by_alias)(X509_LOOKUP *ctx,int type,char *str,int len,
154 X509_OBJECT *ret);
155 } X509_LOOKUP_METHOD;
156
157typedef struct x509_store_ctx_st X509_STORE_CTX;
158
159/* This is used to hold everything. It is used for all certificate
160 * validation. Once we have a certificate chain, the 'verify'
161 * function is then called to actually check the cert chain. */
162typedef struct x509_store_st
163 {
164 /* The following is a cache of trusted certs */
165 int cache; /* if true, stash any hits */
166 STACK_OF(X509_OBJECT) *objs; /* Cache of all objects */
167
168 /* These are external lookup methods */
169 STACK_OF(X509_LOOKUP) *get_cert_methods;
170 int (*verify)(X509_STORE_CTX *ctx); /* called to verify a certificate */
171 int (*verify_cb)(int ok,X509_STORE_CTX *ctx); /* error callback */
172
173 CRYPTO_EX_DATA ex_data;
174 int references;
175 int depth; /* how deep to look (still unused -- X509_STORE_CTX's depth is used) */
176 } X509_STORE;
177
178#define X509_STORE_set_depth(ctx,d) ((ctx)->depth=(d))
179
180#define X509_STORE_set_verify_cb_func(ctx,func) ((ctx)->verify_cb=(func))
181#define X509_STORE_set_verify_func(ctx,func) ((ctx)->verify=(func))
182
183/* This is the functions plus an instance of the local variables. */
184struct x509_lookup_st
185 {
186 int init; /* have we been started */
187 int skip; /* don't use us. */
188 X509_LOOKUP_METHOD *method; /* the functions */
189 char *method_data; /* method data */
190
191 X509_STORE *store_ctx; /* who owns us */
192 };
193
194/* This is a used when verifying cert chains. Since the
195 * gathering of the cert chain can take some time (and have to be
196 * 'retried', this needs to be kept and passed around. */
197struct x509_store_ctx_st /* X509_STORE_CTX */
198 {
199 X509_STORE *ctx;
200 int current_method; /* used when looking up certs */
201
202 /* The following are set by the caller */
203 X509 *cert; /* The cert to check */
204 STACK_OF(X509) *untrusted; /* chain of X509s - untrusted - passed in */
205 int purpose; /* purpose to check untrusted certificates */
206 int trust; /* trust setting to check */
207 time_t check_time; /* time to make verify at */
208 unsigned long flags; /* Various verify flags */
209 void *other_ctx; /* Other info for use with get_issuer() */
210
211 /* Callbacks for various operations */
212 int (*verify)(X509_STORE_CTX *ctx); /* called to verify a certificate */
213 int (*verify_cb)(int ok,X509_STORE_CTX *ctx); /* error callback */
214 int (*get_issuer)(X509 **issuer, X509_STORE_CTX *ctx, X509 *x); /* get issuers cert from ctx */
215 int (*check_issued)(X509_STORE_CTX *ctx, X509 *x, X509 *issuer); /* check issued */
216 int (*cleanup)(X509_STORE_CTX *ctx);
217
218 /* The following is built up */
219 int depth; /* how far to go looking up certs */
220 int valid; /* if 0, rebuild chain */
221 int last_untrusted; /* index of last untrusted cert */
222 STACK_OF(X509) *chain; /* chain of X509s - built up and trusted */
223
224 /* When something goes wrong, this is why */
225 int error_depth;
226 int error;
227 X509 *current_cert;
228 X509 *current_issuer; /* cert currently being tested as valid issuer */
229
230 CRYPTO_EX_DATA ex_data;
231 };
232
233#define X509_STORE_CTX_set_depth(ctx,d) ((ctx)->depth=(d))
234
235#define X509_STORE_CTX_set_app_data(ctx,data) \
236 X509_STORE_CTX_set_ex_data(ctx,0,data)
237#define X509_STORE_CTX_get_app_data(ctx) \
238 X509_STORE_CTX_get_ex_data(ctx,0)
239
240#define X509_L_FILE_LOAD 1
241#define X509_L_ADD_DIR 2
242
243#define X509_LOOKUP_load_file(x,name,type) \
244 X509_LOOKUP_ctrl((x),X509_L_FILE_LOAD,(name),(long)(type),NULL)
245
246#define X509_LOOKUP_add_dir(x,name,type) \
247 X509_LOOKUP_ctrl((x),X509_L_ADD_DIR,(name),(long)(type),NULL)
248
249#define X509_V_OK 0
250/* illegal error (for uninitialized values, to avoid X509_V_OK): 1 */
251
252#define X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT 2
253#define X509_V_ERR_UNABLE_TO_GET_CRL 3
254#define X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE 4
255#define X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE 5
256#define X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY 6
257#define X509_V_ERR_CERT_SIGNATURE_FAILURE 7
258#define X509_V_ERR_CRL_SIGNATURE_FAILURE 8
259#define X509_V_ERR_CERT_NOT_YET_VALID 9
260#define X509_V_ERR_CERT_HAS_EXPIRED 10
261#define X509_V_ERR_CRL_NOT_YET_VALID 11
262#define X509_V_ERR_CRL_HAS_EXPIRED 12
263#define X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD 13
264#define X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD 14
265#define X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD 15
266#define X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD 16
267#define X509_V_ERR_OUT_OF_MEM 17
268#define X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT 18
269#define X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN 19
270#define X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY 20
271#define X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE 21
272#define X509_V_ERR_CERT_CHAIN_TOO_LONG 22
273#define X509_V_ERR_CERT_REVOKED 23
274#define X509_V_ERR_INVALID_CA 24
275#define X509_V_ERR_PATH_LENGTH_EXCEEDED 25
276#define X509_V_ERR_INVALID_PURPOSE 26
277#define X509_V_ERR_CERT_UNTRUSTED 27
278#define X509_V_ERR_CERT_REJECTED 28
279/* These are 'informational' when looking for issuer cert */
280#define X509_V_ERR_SUBJECT_ISSUER_MISMATCH 29
281#define X509_V_ERR_AKID_SKID_MISMATCH 30
282#define X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH 31
283#define X509_V_ERR_KEYUSAGE_NO_CERTSIGN 32
284
285/* The application is not happy */
286#define X509_V_ERR_APPLICATION_VERIFICATION 50
287
288/* Certificate verify flags */
289
290#define X509_V_FLAG_CB_ISSUER_CHECK 0x1 /* Send issuer+subject checks to verify_cb */
291#define X509_V_FLAG_USE_CHECK_TIME 0x2 /* Use check time instead of current time */
292
293 /* These functions are being redefined in another directory,
294 and clash when the linker is case-insensitive, so let's
295 hide them a little, by giving them an extra 'o' at the
296 beginning of the name... */
297#ifdef VMS
298#undef X509v3_cleanup_extensions
299#define X509v3_cleanup_extensions oX509v3_cleanup_extensions
300#undef X509v3_add_extension
301#define X509v3_add_extension oX509v3_add_extension
302#undef X509v3_add_netscape_extensions
303#define X509v3_add_netscape_extensions oX509v3_add_netscape_extensions
304#undef X509v3_add_standard_extensions
305#define X509v3_add_standard_extensions oX509v3_add_standard_extensions
306#endif
307
308int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
309 X509_NAME *name);
310X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,int type,X509_NAME *name);
311X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x);
312void X509_OBJECT_up_ref_count(X509_OBJECT *a);
313void X509_OBJECT_free_contents(X509_OBJECT *a);
314X509_STORE *X509_STORE_new(void );
315void X509_STORE_free(X509_STORE *v);
316
317X509_STORE_CTX *X509_STORE_CTX_new(void);
318
319int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x);
320
321void X509_STORE_CTX_free(X509_STORE_CTX *ctx);
322void X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store,
323 X509 *x509, STACK_OF(X509) *chain);
324void X509_STORE_CTX_trusted_stack(X509_STORE_CTX *ctx, STACK_OF(X509) *sk);
325void X509_STORE_CTX_cleanup(X509_STORE_CTX *ctx);
326
327X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m);
328
329X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void);
330X509_LOOKUP_METHOD *X509_LOOKUP_file(void);
331
332int X509_STORE_add_cert(X509_STORE *ctx, X509 *x);
333int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x);
334
335int X509_STORE_get_by_subject(X509_STORE_CTX *vs,int type,X509_NAME *name,
336 X509_OBJECT *ret);
337
338int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
339 long argl, char **ret);
340
341#ifndef NO_STDIO
342int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type);
343int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type);
344int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type);
345#endif
346
347
348X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method);
349void X509_LOOKUP_free(X509_LOOKUP *ctx);
350int X509_LOOKUP_init(X509_LOOKUP *ctx);
351int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
352 X509_OBJECT *ret);
353int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
354 ASN1_INTEGER *serial, X509_OBJECT *ret);
355int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
356 unsigned char *bytes, int len, X509_OBJECT *ret);
357int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str,
358 int len, X509_OBJECT *ret);
359int X509_LOOKUP_shutdown(X509_LOOKUP *ctx);
360
361#ifndef NO_STDIO
362int X509_STORE_load_locations (X509_STORE *ctx,
363 const char *file, const char *dir);
364int X509_STORE_set_default_paths(X509_STORE *ctx);
365#endif
366
367int X509_STORE_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
368 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
369int X509_STORE_CTX_set_ex_data(X509_STORE_CTX *ctx,int idx,void *data);
370void * X509_STORE_CTX_get_ex_data(X509_STORE_CTX *ctx,int idx);
371int X509_STORE_CTX_get_error(X509_STORE_CTX *ctx);
372void X509_STORE_CTX_set_error(X509_STORE_CTX *ctx,int s);
373int X509_STORE_CTX_get_error_depth(X509_STORE_CTX *ctx);
374X509 * X509_STORE_CTX_get_current_cert(X509_STORE_CTX *ctx);
375STACK_OF(X509) *X509_STORE_CTX_get_chain(X509_STORE_CTX *ctx);
376STACK_OF(X509) *X509_STORE_CTX_get1_chain(X509_STORE_CTX *ctx);
377void X509_STORE_CTX_set_cert(X509_STORE_CTX *c,X509 *x);
378void X509_STORE_CTX_set_chain(X509_STORE_CTX *c,STACK_OF(X509) *sk);
379int X509_STORE_CTX_set_purpose(X509_STORE_CTX *ctx, int purpose);
380int X509_STORE_CTX_set_trust(X509_STORE_CTX *ctx, int trust);
381int X509_STORE_CTX_purpose_inherit(X509_STORE_CTX *ctx, int def_purpose,
382 int purpose, int trust);
383void X509_STORE_CTX_set_flags(X509_STORE_CTX *ctx, long flags);
384void X509_STORE_CTX_set_time(X509_STORE_CTX *ctx, long flags, time_t t);
385
386#ifdef __cplusplus
387}
388#endif
389#endif
390