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authorcvs2svn <admin@example.com>2003-03-22 08:02:04 +0000
committercvs2svn <admin@example.com>2003-03-22 08:02:04 +0000
commitdf32a1286ae06981a79e30b678165a784696be4b (patch)
tree3d70e9a28e2db2eee8cd542ce0ce859502668178 /src/lib/libcrypto/crypto.h
parent2850ebd15c3cfddf6fb7edcd08cb6b2c6f717be9 (diff)
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1/* crypto/crypto.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_CRYPTO_H
60#define HEADER_CRYPTO_H
61
62#include <stdlib.h>
63
64#ifndef OPENSSL_NO_FP_API
65#include <stdio.h>
66#endif
67
68#include <openssl/stack.h>
69#include <openssl/safestack.h>
70#include <openssl/opensslv.h>
71
72#ifdef CHARSET_EBCDIC
73#include <openssl/ebcdic.h>
74#endif
75
76/* Resolve problems on some operating systems with symbol names that clash
77 one way or another */
78#include <openssl/symhacks.h>
79
80#ifdef __cplusplus
81extern "C" {
82#endif
83
84/* Backward compatibility to SSLeay */
85/* This is more to be used to check the correct DLL is being used
86 * in the MS world. */
87#define SSLEAY_VERSION_NUMBER OPENSSL_VERSION_NUMBER
88#define SSLEAY_VERSION 0
89/* #define SSLEAY_OPTIONS 1 no longer supported */
90#define SSLEAY_CFLAGS 2
91#define SSLEAY_BUILT_ON 3
92#define SSLEAY_PLATFORM 4
93#define SSLEAY_DIR 5
94
95/* When changing the CRYPTO_LOCK_* list, be sure to maintin the text lock
96 * names in cryptlib.c
97 */
98
99#define CRYPTO_LOCK_ERR 1
100#define CRYPTO_LOCK_EX_DATA 2
101#define CRYPTO_LOCK_X509 3
102#define CRYPTO_LOCK_X509_INFO 4
103#define CRYPTO_LOCK_X509_PKEY 5
104#define CRYPTO_LOCK_X509_CRL 6
105#define CRYPTO_LOCK_X509_REQ 7
106#define CRYPTO_LOCK_DSA 8
107#define CRYPTO_LOCK_RSA 9
108#define CRYPTO_LOCK_EVP_PKEY 10
109#define CRYPTO_LOCK_X509_STORE 11
110#define CRYPTO_LOCK_SSL_CTX 12
111#define CRYPTO_LOCK_SSL_CERT 13
112#define CRYPTO_LOCK_SSL_SESSION 14
113#define CRYPTO_LOCK_SSL_SESS_CERT 15
114#define CRYPTO_LOCK_SSL 16
115#define CRYPTO_LOCK_RAND 17
116#define CRYPTO_LOCK_RAND2 18
117#define CRYPTO_LOCK_MALLOC 19
118#define CRYPTO_LOCK_BIO 20
119#define CRYPTO_LOCK_GETHOSTBYNAME 21
120#define CRYPTO_LOCK_GETSERVBYNAME 22
121#define CRYPTO_LOCK_READDIR 23
122#define CRYPTO_LOCK_RSA_BLINDING 24
123#define CRYPTO_LOCK_DH 25
124#define CRYPTO_LOCK_MALLOC2 26
125#define CRYPTO_LOCK_DSO 27
126#define CRYPTO_LOCK_DYNLOCK 28
127#define CRYPTO_LOCK_ENGINE 29
128#define CRYPTO_LOCK_UI 30
129#define CRYPTO_NUM_LOCKS 31
130
131#define CRYPTO_LOCK 1
132#define CRYPTO_UNLOCK 2
133#define CRYPTO_READ 4
134#define CRYPTO_WRITE 8
135
136#ifndef OPENSSL_NO_LOCKING
137#ifndef CRYPTO_w_lock
138#define CRYPTO_w_lock(type) \
139 CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,__FILE__,__LINE__)
140#define CRYPTO_w_unlock(type) \
141 CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,__FILE__,__LINE__)
142#define CRYPTO_r_lock(type) \
143 CRYPTO_lock(CRYPTO_LOCK|CRYPTO_READ,type,__FILE__,__LINE__)
144#define CRYPTO_r_unlock(type) \
145 CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_READ,type,__FILE__,__LINE__)
146#define CRYPTO_add(addr,amount,type) \
147 CRYPTO_add_lock(addr,amount,type,__FILE__,__LINE__)
148#endif
149#else
150#define CRYPTO_w_lock(a)
151#define CRYPTO_w_unlock(a)
152#define CRYPTO_r_lock(a)
153#define CRYPTO_r_unlock(a)
154#define CRYPTO_add(a,b,c) ((*(a))+=(b))
155#endif
156
157/* Some applications as well as some parts of OpenSSL need to allocate
158 and deallocate locks in a dynamic fashion. The following typedef
159 makes this possible in a type-safe manner. */
160/* struct CRYPTO_dynlock_value has to be defined by the application. */
161typedef struct
162 {
163 int references;
164 struct CRYPTO_dynlock_value *data;
165 } CRYPTO_dynlock;
166
167
168/* The following can be used to detect memory leaks in the SSLeay library.
169 * It used, it turns on malloc checking */
170
171#define CRYPTO_MEM_CHECK_OFF 0x0 /* an enume */
172#define CRYPTO_MEM_CHECK_ON 0x1 /* a bit */
173#define CRYPTO_MEM_CHECK_ENABLE 0x2 /* a bit */
174#define CRYPTO_MEM_CHECK_DISABLE 0x3 /* an enume */
175
176/* The following are bit values to turn on or off options connected to the
177 * malloc checking functionality */
178
179/* Adds time to the memory checking information */
180#define V_CRYPTO_MDEBUG_TIME 0x1 /* a bit */
181/* Adds thread number to the memory checking information */
182#define V_CRYPTO_MDEBUG_THREAD 0x2 /* a bit */
183
184#define V_CRYPTO_MDEBUG_ALL (V_CRYPTO_MDEBUG_TIME | V_CRYPTO_MDEBUG_THREAD)
185
186
187/* predec of the BIO type */
188typedef struct bio_st BIO_dummy;
189
190typedef struct crypto_ex_data_st
191 {
192 STACK *sk;
193 int dummy; /* gcc is screwing up this data structure :-( */
194 } CRYPTO_EX_DATA;
195
196/* Called when a new object is created */
197typedef int CRYPTO_EX_new(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
198 int idx, long argl, void *argp);
199/* Called when an object is free()ed */
200typedef void CRYPTO_EX_free(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
201 int idx, long argl, void *argp);
202/* Called when we need to dup an object */
203typedef int CRYPTO_EX_dup(CRYPTO_EX_DATA *to, CRYPTO_EX_DATA *from, void *from_d,
204 int idx, long argl, void *argp);
205
206/* This stuff is basically class callback functions
207 * The current classes are SSL_CTX, SSL, SSL_SESSION, and a few more */
208
209typedef struct crypto_ex_data_func_st
210 {
211 long argl; /* Arbitary long */
212 void *argp; /* Arbitary void * */
213 CRYPTO_EX_new *new_func;
214 CRYPTO_EX_free *free_func;
215 CRYPTO_EX_dup *dup_func;
216 } CRYPTO_EX_DATA_FUNCS;
217
218DECLARE_STACK_OF(CRYPTO_EX_DATA_FUNCS)
219
220/* Per class, we have a STACK of CRYPTO_EX_DATA_FUNCS for each CRYPTO_EX_DATA
221 * entry.
222 */
223
224#define CRYPTO_EX_INDEX_BIO 0
225#define CRYPTO_EX_INDEX_SSL 1
226#define CRYPTO_EX_INDEX_SSL_CTX 2
227#define CRYPTO_EX_INDEX_SSL_SESSION 3
228#define CRYPTO_EX_INDEX_X509_STORE 4
229#define CRYPTO_EX_INDEX_X509_STORE_CTX 5
230#define CRYPTO_EX_INDEX_RSA 6
231#define CRYPTO_EX_INDEX_DSA 7
232#define CRYPTO_EX_INDEX_DH 8
233#define CRYPTO_EX_INDEX_ENGINE 9
234#define CRYPTO_EX_INDEX_X509 10
235#define CRYPTO_EX_INDEX_UI 11
236
237/* Dynamically assigned indexes start from this value (don't use directly, use
238 * via CRYPTO_ex_data_new_class). */
239#define CRYPTO_EX_INDEX_USER 100
240
241
242/* This is the default callbacks, but we can have others as well:
243 * this is needed in Win32 where the application malloc and the
244 * library malloc may not be the same.
245 */
246#define CRYPTO_malloc_init() CRYPTO_set_mem_functions(\
247 malloc, realloc, free)
248
249#if defined CRYPTO_MDEBUG_ALL || defined CRYPTO_MDEBUG_TIME || defined CRYPTO_MDEBUG_THREAD
250# ifndef CRYPTO_MDEBUG /* avoid duplicate #define */
251# define CRYPTO_MDEBUG
252# endif
253#endif
254
255/* Set standard debugging functions (not done by default
256 * unless CRYPTO_MDEBUG is defined) */
257#define CRYPTO_malloc_debug_init() do {\
258 CRYPTO_set_mem_debug_functions(\
259 CRYPTO_dbg_malloc,\
260 CRYPTO_dbg_realloc,\
261 CRYPTO_dbg_free,\
262 CRYPTO_dbg_set_options,\
263 CRYPTO_dbg_get_options);\
264 } while(0)
265
266int CRYPTO_mem_ctrl(int mode);
267int CRYPTO_is_mem_check_on(void);
268
269/* for applications */
270#define MemCheck_start() CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON)
271#define MemCheck_stop() CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF)
272
273/* for library-internal use */
274#define MemCheck_on() CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE)
275#define MemCheck_off() CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE)
276#define is_MemCheck_on() CRYPTO_is_mem_check_on()
277
278#define OPENSSL_malloc(num) CRYPTO_malloc((int)num,__FILE__,__LINE__)
279#define OPENSSL_realloc(addr,num) \
280 CRYPTO_realloc((char *)addr,(int)num,__FILE__,__LINE__)
281#define OPENSSL_remalloc(addr,num) \
282 CRYPTO_remalloc((char **)addr,(int)num,__FILE__,__LINE__)
283#define OPENSSL_freeFunc CRYPTO_free
284#define OPENSSL_free(addr) CRYPTO_free(addr)
285
286#define OPENSSL_malloc_locked(num) \
287 CRYPTO_malloc_locked((int)num,__FILE__,__LINE__)
288#define OPENSSL_free_locked(addr) CRYPTO_free_locked(addr)
289
290
291const char *SSLeay_version(int type);
292unsigned long SSLeay(void);
293
294int OPENSSL_issetugid(void);
295
296/* An opaque type representing an implementation of "ex_data" support */
297typedef struct st_CRYPTO_EX_DATA_IMPL CRYPTO_EX_DATA_IMPL;
298/* Return an opaque pointer to the current "ex_data" implementation */
299const CRYPTO_EX_DATA_IMPL *CRYPTO_get_ex_data_implementation(void);
300/* Sets the "ex_data" implementation to be used (if it's not too late) */
301int CRYPTO_set_ex_data_implementation(const CRYPTO_EX_DATA_IMPL *i);
302/* Get a new "ex_data" class, and return the corresponding "class_index" */
303int CRYPTO_ex_data_new_class(void);
304/* Within a given class, get/register a new index */
305int CRYPTO_get_ex_new_index(int class_index, long argl, void *argp,
306 CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
307 CRYPTO_EX_free *free_func);
308/* Initialise/duplicate/free CRYPTO_EX_DATA variables corresponding to a given
309 * class (invokes whatever per-class callbacks are applicable) */
310int CRYPTO_new_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
311int CRYPTO_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
312 CRYPTO_EX_DATA *from);
313void CRYPTO_free_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
314/* Get/set data in a CRYPTO_EX_DATA variable corresponding to a particular index
315 * (relative to the class type involved) */
316int CRYPTO_set_ex_data(CRYPTO_EX_DATA *ad, int idx, void *val);
317void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad,int idx);
318/* This function cleans up all "ex_data" state. It mustn't be called under
319 * potential race-conditions. */
320void CRYPTO_cleanup_all_ex_data(void);
321
322int CRYPTO_get_new_lockid(char *name);
323
324int CRYPTO_num_locks(void); /* return CRYPTO_NUM_LOCKS (shared libs!) */
325void CRYPTO_lock(int mode, int type,const char *file,int line);
326void CRYPTO_set_locking_callback(void (*func)(int mode,int type,
327 const char *file,int line));
328void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file,
329 int line);
330void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type,
331 const char *file, int line));
332int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type,
333 const char *file,int line);
334void CRYPTO_set_id_callback(unsigned long (*func)(void));
335unsigned long (*CRYPTO_get_id_callback(void))(void);
336unsigned long CRYPTO_thread_id(void);
337const char *CRYPTO_get_lock_name(int type);
338int CRYPTO_add_lock(int *pointer,int amount,int type, const char *file,
339 int line);
340
341int CRYPTO_get_new_dynlockid(void);
342void CRYPTO_destroy_dynlockid(int i);
343struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i);
344void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*dyn_create_function)(const char *file, int line));
345void CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)(int mode, struct CRYPTO_dynlock_value *l, const char *file, int line));
346void CRYPTO_set_dynlock_destroy_callback(void (*dyn_destroy_function)(struct CRYPTO_dynlock_value *l, const char *file, int line));
347struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void))(const char *file,int line);
348void (*CRYPTO_get_dynlock_lock_callback(void))(int mode, struct CRYPTO_dynlock_value *l, const char *file,int line);
349void (*CRYPTO_get_dynlock_destroy_callback(void))(struct CRYPTO_dynlock_value *l, const char *file,int line);
350
351/* CRYPTO_set_mem_functions includes CRYPTO_set_locked_mem_functions --
352 * call the latter last if you need different functions */
353int CRYPTO_set_mem_functions(void *(*m)(size_t),void *(*r)(void *,size_t), void (*f)(void *));
354int CRYPTO_set_locked_mem_functions(void *(*m)(size_t), void (*free_func)(void *));
355int CRYPTO_set_mem_ex_functions(void *(*m)(size_t,const char *,int),
356 void *(*r)(void *,size_t,const char *,int),
357 void (*f)(void *));
358int CRYPTO_set_locked_mem_ex_functions(void *(*m)(size_t,const char *,int),
359 void (*free_func)(void *));
360int CRYPTO_set_mem_debug_functions(void (*m)(void *,int,const char *,int,int),
361 void (*r)(void *,void *,int,const char *,int,int),
362 void (*f)(void *,int),
363 void (*so)(long),
364 long (*go)(void));
365void CRYPTO_get_mem_functions(void *(**m)(size_t),void *(**r)(void *, size_t), void (**f)(void *));
366void CRYPTO_get_locked_mem_functions(void *(**m)(size_t), void (**f)(void *));
367void CRYPTO_get_mem_ex_functions(void *(**m)(size_t,const char *,int),
368 void *(**r)(void *, size_t,const char *,int),
369 void (**f)(void *));
370void CRYPTO_get_locked_mem_ex_functions(void *(**m)(size_t,const char *,int),
371 void (**f)(void *));
372void CRYPTO_get_mem_debug_functions(void (**m)(void *,int,const char *,int,int),
373 void (**r)(void *,void *,int,const char *,int,int),
374 void (**f)(void *,int),
375 void (**so)(long),
376 long (**go)(void));
377
378void *CRYPTO_malloc_locked(int num, const char *file, int line);
379void CRYPTO_free_locked(void *);
380void *CRYPTO_malloc(int num, const char *file, int line);
381void CRYPTO_free(void *);
382void *CRYPTO_realloc(void *addr,int num, const char *file, int line);
383void *CRYPTO_remalloc(void *addr,int num, const char *file, int line);
384
385void CRYPTO_set_mem_debug_options(long bits);
386long CRYPTO_get_mem_debug_options(void);
387
388#define CRYPTO_push_info(info) \
389 CRYPTO_push_info_(info, __FILE__, __LINE__);
390int CRYPTO_push_info_(const char *info, const char *file, int line);
391int CRYPTO_pop_info(void);
392int CRYPTO_remove_all_info(void);
393
394
395/* Default debugging functions (enabled by CRYPTO_malloc_debug_init() macro;
396 * used as default in CRYPTO_MDEBUG compilations): */
397/* The last argument has the following significance:
398 *
399 * 0: called before the actual memory allocation has taken place
400 * 1: called after the actual memory allocation has taken place
401 */
402void CRYPTO_dbg_malloc(void *addr,int num,const char *file,int line,int before_p);
403void CRYPTO_dbg_realloc(void *addr1,void *addr2,int num,const char *file,int line,int before_p);
404void CRYPTO_dbg_free(void *addr,int before_p);
405/* Tell the debugging code about options. By default, the following values
406 * apply:
407 *
408 * 0: Clear all options.
409 * V_CRYPTO_MDEBUG_TIME (1): Set the "Show Time" option.
410 * V_CRYPTO_MDEBUG_THREAD (2): Set the "Show Thread Number" option.
411 * V_CRYPTO_MDEBUG_ALL (3): 1 + 2
412 */
413void CRYPTO_dbg_set_options(long bits);
414long CRYPTO_dbg_get_options(void);
415
416
417#ifndef OPENSSL_NO_FP_API
418void CRYPTO_mem_leaks_fp(FILE *);
419#endif
420void CRYPTO_mem_leaks(struct bio_st *bio);
421/* unsigned long order, char *file, int line, int num_bytes, char *addr */
422typedef void *CRYPTO_MEM_LEAK_CB(unsigned long, const char *, int, int, void *);
423void CRYPTO_mem_leaks_cb(CRYPTO_MEM_LEAK_CB *cb);
424
425
426/* BEGIN ERROR CODES */
427/* The following lines are auto generated by the script mkerr.pl. Any changes
428 * made after this point may be overwritten when the script is next run.
429 */
430void ERR_load_CRYPTO_strings(void);
431
432/* Error codes for the CRYPTO functions. */
433
434/* Function codes. */
435#define CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX 100
436#define CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID 103
437#define CRYPTO_F_CRYPTO_GET_NEW_LOCKID 101
438#define CRYPTO_F_CRYPTO_SET_EX_DATA 102
439#define CRYPTO_F_DEF_ADD_INDEX 104
440#define CRYPTO_F_DEF_GET_CLASS 105
441#define CRYPTO_F_INT_DUP_EX_DATA 106
442#define CRYPTO_F_INT_FREE_EX_DATA 107
443#define CRYPTO_F_INT_NEW_EX_DATA 108
444
445/* Reason codes. */
446#define CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK 100
447
448#ifdef __cplusplus
449}
450#endif
451#endif