source: EcnlProtoTool/trunk/openssl-1.1.0e/include/openssl/engine.h@ 331

Last change on this file since 331 was 331, checked in by coas-nagasima, 6 years ago

prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl

  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-chdr
File size: 38.7 KB
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1/*
2 * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10/* ====================================================================
11 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
12 * ECDH support in OpenSSL originally developed by
13 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
14 */
15
16#ifndef HEADER_ENGINE_H
17# define HEADER_ENGINE_H
18
19# include <openssl/opensslconf.h>
20
21# ifndef OPENSSL_NO_ENGINE
22# if OPENSSL_API_COMPAT < 0x10100000L
23# include <openssl/bn.h>
24# include <openssl/rsa.h>
25# include <openssl/dsa.h>
26# include <openssl/dh.h>
27# include <openssl/ec.h>
28# include <openssl/rand.h>
29# include <openssl/ui.h>
30# include <openssl/err.h>
31# endif
32# include <openssl/ossl_typ.h>
33# include <openssl/symhacks.h>
34# include <openssl/x509.h>
35# ifdef __cplusplus
36extern "C" {
37# endif
38
39/*
40 * These flags are used to control combinations of algorithm (methods) by
41 * bitwise "OR"ing.
42 */
43# define ENGINE_METHOD_RSA (unsigned int)0x0001
44# define ENGINE_METHOD_DSA (unsigned int)0x0002
45# define ENGINE_METHOD_DH (unsigned int)0x0004
46# define ENGINE_METHOD_RAND (unsigned int)0x0008
47# define ENGINE_METHOD_CIPHERS (unsigned int)0x0040
48# define ENGINE_METHOD_DIGESTS (unsigned int)0x0080
49# define ENGINE_METHOD_PKEY_METHS (unsigned int)0x0200
50# define ENGINE_METHOD_PKEY_ASN1_METHS (unsigned int)0x0400
51# define ENGINE_METHOD_EC (unsigned int)0x0800
52/* Obvious all-or-nothing cases. */
53# define ENGINE_METHOD_ALL (unsigned int)0xFFFF
54# define ENGINE_METHOD_NONE (unsigned int)0x0000
55
56/*
57 * This(ese) flag(s) controls behaviour of the ENGINE_TABLE mechanism used
58 * internally to control registration of ENGINE implementations, and can be
59 * set by ENGINE_set_table_flags(). The "NOINIT" flag prevents attempts to
60 * initialise registered ENGINEs if they are not already initialised.
61 */
62# define ENGINE_TABLE_FLAG_NOINIT (unsigned int)0x0001
63
64/* ENGINE flags that can be set by ENGINE_set_flags(). */
65/* Not used */
66/* #define ENGINE_FLAGS_MALLOCED 0x0001 */
67
68/*
69 * This flag is for ENGINEs that wish to handle the various 'CMD'-related
70 * control commands on their own. Without this flag, ENGINE_ctrl() handles
71 * these control commands on behalf of the ENGINE using their "cmd_defns"
72 * data.
73 */
74# define ENGINE_FLAGS_MANUAL_CMD_CTRL (int)0x0002
75
76/*
77 * This flag is for ENGINEs who return new duplicate structures when found
78 * via "ENGINE_by_id()". When an ENGINE must store state (eg. if
79 * ENGINE_ctrl() commands are called in sequence as part of some stateful
80 * process like key-generation setup and execution), it can set this flag -
81 * then each attempt to obtain the ENGINE will result in it being copied into
82 * a new structure. Normally, ENGINEs don't declare this flag so
83 * ENGINE_by_id() just increments the existing ENGINE's structural reference
84 * count.
85 */
86# define ENGINE_FLAGS_BY_ID_COPY (int)0x0004
87
88/*
89 * This flag if for an ENGINE that does not want its methods registered as
90 * part of ENGINE_register_all_complete() for example if the methods are not
91 * usable as default methods.
92 */
93
94# define ENGINE_FLAGS_NO_REGISTER_ALL (int)0x0008
95
96/*
97 * ENGINEs can support their own command types, and these flags are used in
98 * ENGINE_CTRL_GET_CMD_FLAGS to indicate to the caller what kind of input
99 * each command expects. Currently only numeric and string input is
100 * supported. If a control command supports none of the _NUMERIC, _STRING, or
101 * _NO_INPUT options, then it is regarded as an "internal" control command -
102 * and not for use in config setting situations. As such, they're not
103 * available to the ENGINE_ctrl_cmd_string() function, only raw ENGINE_ctrl()
104 * access. Changes to this list of 'command types' should be reflected
105 * carefully in ENGINE_cmd_is_executable() and ENGINE_ctrl_cmd_string().
106 */
107
108/* accepts a 'long' input value (3rd parameter to ENGINE_ctrl) */
109# define ENGINE_CMD_FLAG_NUMERIC (unsigned int)0x0001
110/*
111 * accepts string input (cast from 'void*' to 'const char *', 4th parameter
112 * to ENGINE_ctrl)
113 */
114# define ENGINE_CMD_FLAG_STRING (unsigned int)0x0002
115/*
116 * Indicates that the control command takes *no* input. Ie. the control
117 * command is unparameterised.
118 */
119# define ENGINE_CMD_FLAG_NO_INPUT (unsigned int)0x0004
120/*
121 * Indicates that the control command is internal. This control command won't
122 * be shown in any output, and is only usable through the ENGINE_ctrl_cmd()
123 * function.
124 */
125# define ENGINE_CMD_FLAG_INTERNAL (unsigned int)0x0008
126
127/*
128 * NB: These 3 control commands are deprecated and should not be used.
129 * ENGINEs relying on these commands should compile conditional support for
130 * compatibility (eg. if these symbols are defined) but should also migrate
131 * the same functionality to their own ENGINE-specific control functions that
132 * can be "discovered" by calling applications. The fact these control
133 * commands wouldn't be "executable" (ie. usable by text-based config)
134 * doesn't change the fact that application code can find and use them
135 * without requiring per-ENGINE hacking.
136 */
137
138/*
139 * These flags are used to tell the ctrl function what should be done. All
140 * command numbers are shared between all engines, even if some don't make
141 * sense to some engines. In such a case, they do nothing but return the
142 * error ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED.
143 */
144# define ENGINE_CTRL_SET_LOGSTREAM 1
145# define ENGINE_CTRL_SET_PASSWORD_CALLBACK 2
146# define ENGINE_CTRL_HUP 3/* Close and reinitialise
147 * any handles/connections
148 * etc. */
149# define ENGINE_CTRL_SET_USER_INTERFACE 4/* Alternative to callback */
150# define ENGINE_CTRL_SET_CALLBACK_DATA 5/* User-specific data, used
151 * when calling the password
152 * callback and the user
153 * interface */
154# define ENGINE_CTRL_LOAD_CONFIGURATION 6/* Load a configuration,
155 * given a string that
156 * represents a file name
157 * or so */
158# define ENGINE_CTRL_LOAD_SECTION 7/* Load data from a given
159 * section in the already
160 * loaded configuration */
161
162/*
163 * These control commands allow an application to deal with an arbitrary
164 * engine in a dynamic way. Warn: Negative return values indicate errors FOR
165 * THESE COMMANDS because zero is used to indicate 'end-of-list'. Other
166 * commands, including ENGINE-specific command types, return zero for an
167 * error. An ENGINE can choose to implement these ctrl functions, and can
168 * internally manage things however it chooses - it does so by setting the
169 * ENGINE_FLAGS_MANUAL_CMD_CTRL flag (using ENGINE_set_flags()). Otherwise
170 * the ENGINE_ctrl() code handles this on the ENGINE's behalf using the
171 * cmd_defns data (set using ENGINE_set_cmd_defns()). This means an ENGINE's
172 * ctrl() handler need only implement its own commands - the above "meta"
173 * commands will be taken care of.
174 */
175
176/*
177 * Returns non-zero if the supplied ENGINE has a ctrl() handler. If "not",
178 * then all the remaining control commands will return failure, so it is
179 * worth checking this first if the caller is trying to "discover" the
180 * engine's capabilities and doesn't want errors generated unnecessarily.
181 */
182# define ENGINE_CTRL_HAS_CTRL_FUNCTION 10
183/*
184 * Returns a positive command number for the first command supported by the
185 * engine. Returns zero if no ctrl commands are supported.
186 */
187# define ENGINE_CTRL_GET_FIRST_CMD_TYPE 11
188/*
189 * The 'long' argument specifies a command implemented by the engine, and the
190 * return value is the next command supported, or zero if there are no more.
191 */
192# define ENGINE_CTRL_GET_NEXT_CMD_TYPE 12
193/*
194 * The 'void*' argument is a command name (cast from 'const char *'), and the
195 * return value is the command that corresponds to it.
196 */
197# define ENGINE_CTRL_GET_CMD_FROM_NAME 13
198/*
199 * The next two allow a command to be converted into its corresponding string
200 * form. In each case, the 'long' argument supplies the command. In the
201 * NAME_LEN case, the return value is the length of the command name (not
202 * counting a trailing EOL). In the NAME case, the 'void*' argument must be a
203 * string buffer large enough, and it will be populated with the name of the
204 * command (WITH a trailing EOL).
205 */
206# define ENGINE_CTRL_GET_NAME_LEN_FROM_CMD 14
207# define ENGINE_CTRL_GET_NAME_FROM_CMD 15
208/* The next two are similar but give a "short description" of a command. */
209# define ENGINE_CTRL_GET_DESC_LEN_FROM_CMD 16
210# define ENGINE_CTRL_GET_DESC_FROM_CMD 17
211/*
212 * With this command, the return value is the OR'd combination of
213 * ENGINE_CMD_FLAG_*** values that indicate what kind of input a given
214 * engine-specific ctrl command expects.
215 */
216# define ENGINE_CTRL_GET_CMD_FLAGS 18
217
218/*
219 * ENGINE implementations should start the numbering of their own control
220 * commands from this value. (ie. ENGINE_CMD_BASE, ENGINE_CMD_BASE + 1, etc).
221 */
222# define ENGINE_CMD_BASE 200
223
224/*
225 * NB: These 2 nCipher "chil" control commands are deprecated, and their
226 * functionality is now available through ENGINE-specific control commands
227 * (exposed through the above-mentioned 'CMD'-handling). Code using these 2
228 * commands should be migrated to the more general command handling before
229 * these are removed.
230 */
231
232/* Flags specific to the nCipher "chil" engine */
233# define ENGINE_CTRL_CHIL_SET_FORKCHECK 100
234 /*
235 * Depending on the value of the (long)i argument, this sets or
236 * unsets the SimpleForkCheck flag in the CHIL API to enable or
237 * disable checking and workarounds for applications that fork().
238 */
239# define ENGINE_CTRL_CHIL_NO_LOCKING 101
240 /*
241 * This prevents the initialisation function from providing mutex
242 * callbacks to the nCipher library.
243 */
244
245/*
246 * If an ENGINE supports its own specific control commands and wishes the
247 * framework to handle the above 'ENGINE_CMD_***'-manipulation commands on
248 * its behalf, it should supply a null-terminated array of ENGINE_CMD_DEFN
249 * entries to ENGINE_set_cmd_defns(). It should also implement a ctrl()
250 * handler that supports the stated commands (ie. the "cmd_num" entries as
251 * described by the array). NB: The array must be ordered in increasing order
252 * of cmd_num. "null-terminated" means that the last ENGINE_CMD_DEFN element
253 * has cmd_num set to zero and/or cmd_name set to NULL.
254 */
255typedef struct ENGINE_CMD_DEFN_st {
256 unsigned int cmd_num; /* The command number */
257 const char *cmd_name; /* The command name itself */
258 const char *cmd_desc; /* A short description of the command */
259 unsigned int cmd_flags; /* The input the command expects */
260} ENGINE_CMD_DEFN;
261
262/* Generic function pointer */
263typedef int (*ENGINE_GEN_FUNC_PTR) (void);
264/* Generic function pointer taking no arguments */
265typedef int (*ENGINE_GEN_INT_FUNC_PTR) (ENGINE *);
266/* Specific control function pointer */
267typedef int (*ENGINE_CTRL_FUNC_PTR) (ENGINE *, int, long, void *,
268 void (*f) (void));
269/* Generic load_key function pointer */
270typedef EVP_PKEY *(*ENGINE_LOAD_KEY_PTR)(ENGINE *, const char *,
271 UI_METHOD *ui_method,
272 void *callback_data);
273typedef int (*ENGINE_SSL_CLIENT_CERT_PTR) (ENGINE *, SSL *ssl,
274 STACK_OF(X509_NAME) *ca_dn,
275 X509 **pcert, EVP_PKEY **pkey,
276 STACK_OF(X509) **pother,
277 UI_METHOD *ui_method,
278 void *callback_data);
279/*-
280 * These callback types are for an ENGINE's handler for cipher and digest logic.
281 * These handlers have these prototypes;
282 * int foo(ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid);
283 * int foo(ENGINE *e, const EVP_MD **digest, const int **nids, int nid);
284 * Looking at how to implement these handlers in the case of cipher support, if
285 * the framework wants the EVP_CIPHER for 'nid', it will call;
286 * foo(e, &p_evp_cipher, NULL, nid); (return zero for failure)
287 * If the framework wants a list of supported 'nid's, it will call;
288 * foo(e, NULL, &p_nids, 0); (returns number of 'nids' or -1 for error)
289 */
290/*
291 * Returns to a pointer to the array of supported cipher 'nid's. If the
292 * second parameter is non-NULL it is set to the size of the returned array.
293 */
294typedef int (*ENGINE_CIPHERS_PTR) (ENGINE *, const EVP_CIPHER **,
295 const int **, int);
296typedef int (*ENGINE_DIGESTS_PTR) (ENGINE *, const EVP_MD **, const int **,
297 int);
298typedef int (*ENGINE_PKEY_METHS_PTR) (ENGINE *, EVP_PKEY_METHOD **,
299 const int **, int);
300typedef int (*ENGINE_PKEY_ASN1_METHS_PTR) (ENGINE *, EVP_PKEY_ASN1_METHOD **,
301 const int **, int);
302/*
303 * STRUCTURE functions ... all of these functions deal with pointers to
304 * ENGINE structures where the pointers have a "structural reference". This
305 * means that their reference is to allowed access to the structure but it
306 * does not imply that the structure is functional. To simply increment or
307 * decrement the structural reference count, use ENGINE_by_id and
308 * ENGINE_free. NB: This is not required when iterating using ENGINE_get_next
309 * as it will automatically decrement the structural reference count of the
310 * "current" ENGINE and increment the structural reference count of the
311 * ENGINE it returns (unless it is NULL).
312 */
313
314/* Get the first/last "ENGINE" type available. */
315ENGINE *ENGINE_get_first(void);
316ENGINE *ENGINE_get_last(void);
317/* Iterate to the next/previous "ENGINE" type (NULL = end of the list). */
318ENGINE *ENGINE_get_next(ENGINE *e);
319ENGINE *ENGINE_get_prev(ENGINE *e);
320/* Add another "ENGINE" type into the array. */
321int ENGINE_add(ENGINE *e);
322/* Remove an existing "ENGINE" type from the array. */
323int ENGINE_remove(ENGINE *e);
324/* Retrieve an engine from the list by its unique "id" value. */
325ENGINE *ENGINE_by_id(const char *id);
326
327#if OPENSSL_API_COMPAT < 0x10100000L
328# define ENGINE_load_openssl() \
329 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_OPENSSL, NULL)
330# define ENGINE_load_dynamic() \
331 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_DYNAMIC, NULL)
332# ifndef OPENSSL_NO_STATIC_ENGINE
333# define ENGINE_load_padlock() \
334 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_PADLOCK, NULL)
335# define ENGINE_load_capi() \
336 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_CAPI, NULL)
337# define ENGINE_load_afalg() \
338 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_AFALG, NULL)
339# endif
340# define ENGINE_load_cryptodev() \
341 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_CRYPTODEV, NULL)
342# define ENGINE_load_rdrand() \
343 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_RDRAND, NULL)
344#endif
345void ENGINE_load_builtin_engines(void);
346
347/*
348 * Get and set global flags (ENGINE_TABLE_FLAG_***) for the implementation
349 * "registry" handling.
350 */
351unsigned int ENGINE_get_table_flags(void);
352void ENGINE_set_table_flags(unsigned int flags);
353
354/*- Manage registration of ENGINEs per "table". For each type, there are 3
355 * functions;
356 * ENGINE_register_***(e) - registers the implementation from 'e' (if it has one)
357 * ENGINE_unregister_***(e) - unregister the implementation from 'e'
358 * ENGINE_register_all_***() - call ENGINE_register_***() for each 'e' in the list
359 * Cleanup is automatically registered from each table when required.
360 */
361
362int ENGINE_register_RSA(ENGINE *e);
363void ENGINE_unregister_RSA(ENGINE *e);
364void ENGINE_register_all_RSA(void);
365
366int ENGINE_register_DSA(ENGINE *e);
367void ENGINE_unregister_DSA(ENGINE *e);
368void ENGINE_register_all_DSA(void);
369
370int ENGINE_register_EC(ENGINE *e);
371void ENGINE_unregister_EC(ENGINE *e);
372void ENGINE_register_all_EC(void);
373
374int ENGINE_register_DH(ENGINE *e);
375void ENGINE_unregister_DH(ENGINE *e);
376void ENGINE_register_all_DH(void);
377
378int ENGINE_register_RAND(ENGINE *e);
379void ENGINE_unregister_RAND(ENGINE *e);
380void ENGINE_register_all_RAND(void);
381
382int ENGINE_register_ciphers(ENGINE *e);
383void ENGINE_unregister_ciphers(ENGINE *e);
384void ENGINE_register_all_ciphers(void);
385
386int ENGINE_register_digests(ENGINE *e);
387void ENGINE_unregister_digests(ENGINE *e);
388void ENGINE_register_all_digests(void);
389
390int ENGINE_register_pkey_meths(ENGINE *e);
391void ENGINE_unregister_pkey_meths(ENGINE *e);
392void ENGINE_register_all_pkey_meths(void);
393
394int ENGINE_register_pkey_asn1_meths(ENGINE *e);
395void ENGINE_unregister_pkey_asn1_meths(ENGINE *e);
396void ENGINE_register_all_pkey_asn1_meths(void);
397
398/*
399 * These functions register all support from the above categories. Note, use
400 * of these functions can result in static linkage of code your application
401 * may not need. If you only need a subset of functionality, consider using
402 * more selective initialisation.
403 */
404int ENGINE_register_complete(ENGINE *e);
405int ENGINE_register_all_complete(void);
406
407/*
408 * Send parametrised control commands to the engine. The possibilities to
409 * send down an integer, a pointer to data or a function pointer are
410 * provided. Any of the parameters may or may not be NULL, depending on the
411 * command number. In actuality, this function only requires a structural
412 * (rather than functional) reference to an engine, but many control commands
413 * may require the engine be functional. The caller should be aware of trying
414 * commands that require an operational ENGINE, and only use functional
415 * references in such situations.
416 */
417int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void));
418
419/*
420 * This function tests if an ENGINE-specific command is usable as a
421 * "setting". Eg. in an application's config file that gets processed through
422 * ENGINE_ctrl_cmd_string(). If this returns zero, it is not available to
423 * ENGINE_ctrl_cmd_string(), only ENGINE_ctrl().
424 */
425int ENGINE_cmd_is_executable(ENGINE *e, int cmd);
426
427/*
428 * This function works like ENGINE_ctrl() with the exception of taking a
429 * command name instead of a command number, and can handle optional
430 * commands. See the comment on ENGINE_ctrl_cmd_string() for an explanation
431 * on how to use the cmd_name and cmd_optional.
432 */
433int ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name,
434 long i, void *p, void (*f) (void), int cmd_optional);
435
436/*
437 * This function passes a command-name and argument to an ENGINE. The
438 * cmd_name is converted to a command number and the control command is
439 * called using 'arg' as an argument (unless the ENGINE doesn't support such
440 * a command, in which case no control command is called). The command is
441 * checked for input flags, and if necessary the argument will be converted
442 * to a numeric value. If cmd_optional is non-zero, then if the ENGINE
443 * doesn't support the given cmd_name the return value will be success
444 * anyway. This function is intended for applications to use so that users
445 * (or config files) can supply engine-specific config data to the ENGINE at
446 * run-time to control behaviour of specific engines. As such, it shouldn't
447 * be used for calling ENGINE_ctrl() functions that return data, deal with
448 * binary data, or that are otherwise supposed to be used directly through
449 * ENGINE_ctrl() in application code. Any "return" data from an ENGINE_ctrl()
450 * operation in this function will be lost - the return value is interpreted
451 * as failure if the return value is zero, success otherwise, and this
452 * function returns a boolean value as a result. In other words, vendors of
453 * 'ENGINE'-enabled devices should write ENGINE implementations with
454 * parameterisations that work in this scheme, so that compliant ENGINE-based
455 * applications can work consistently with the same configuration for the
456 * same ENGINE-enabled devices, across applications.
457 */
458int ENGINE_ctrl_cmd_string(ENGINE *e, const char *cmd_name, const char *arg,
459 int cmd_optional);
460
461/*
462 * These functions are useful for manufacturing new ENGINE structures. They
463 * don't address reference counting at all - one uses them to populate an
464 * ENGINE structure with personalised implementations of things prior to
465 * using it directly or adding it to the builtin ENGINE list in OpenSSL.
466 * These are also here so that the ENGINE structure doesn't have to be
467 * exposed and break binary compatibility!
468 */
469ENGINE *ENGINE_new(void);
470int ENGINE_free(ENGINE *e);
471int ENGINE_up_ref(ENGINE *e);
472int ENGINE_set_id(ENGINE *e, const char *id);
473int ENGINE_set_name(ENGINE *e, const char *name);
474int ENGINE_set_RSA(ENGINE *e, const RSA_METHOD *rsa_meth);
475int ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth);
476int ENGINE_set_EC(ENGINE *e, const EC_KEY_METHOD *ecdsa_meth);
477int ENGINE_set_DH(ENGINE *e, const DH_METHOD *dh_meth);
478int ENGINE_set_RAND(ENGINE *e, const RAND_METHOD *rand_meth);
479int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f);
480int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f);
481int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f);
482int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f);
483int ENGINE_set_load_privkey_function(ENGINE *e,
484 ENGINE_LOAD_KEY_PTR loadpriv_f);
485int ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f);
486int ENGINE_set_load_ssl_client_cert_function(ENGINE *e,
487 ENGINE_SSL_CLIENT_CERT_PTR
488 loadssl_f);
489int ENGINE_set_ciphers(ENGINE *e, ENGINE_CIPHERS_PTR f);
490int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f);
491int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f);
492int ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f);
493int ENGINE_set_flags(ENGINE *e, int flags);
494int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns);
495/* These functions allow control over any per-structure ENGINE data. */
496#define ENGINE_get_ex_new_index(l, p, newf, dupf, freef) \
497 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ENGINE, l, p, newf, dupf, freef)
498int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg);
499void *ENGINE_get_ex_data(const ENGINE *e, int idx);
500
501#if OPENSSL_API_COMPAT < 0x10100000L
502/*
503 * This function previously cleaned up anything that needs it. Auto-deinit will
504 * now take care of it so it is no longer required to call this function.
505 */
506# define ENGINE_cleanup() while(0) continue
507#endif
508
509/*
510 * These return values from within the ENGINE structure. These can be useful
511 * with functional references as well as structural references - it depends
512 * which you obtained. Using the result for functional purposes if you only
513 * obtained a structural reference may be problematic!
514 */
515const char *ENGINE_get_id(const ENGINE *e);
516const char *ENGINE_get_name(const ENGINE *e);
517const RSA_METHOD *ENGINE_get_RSA(const ENGINE *e);
518const DSA_METHOD *ENGINE_get_DSA(const ENGINE *e);
519const EC_KEY_METHOD *ENGINE_get_EC(const ENGINE *e);
520const DH_METHOD *ENGINE_get_DH(const ENGINE *e);
521const RAND_METHOD *ENGINE_get_RAND(const ENGINE *e);
522ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e);
523ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e);
524ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e);
525ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e);
526ENGINE_LOAD_KEY_PTR ENGINE_get_load_privkey_function(const ENGINE *e);
527ENGINE_LOAD_KEY_PTR ENGINE_get_load_pubkey_function(const ENGINE *e);
528ENGINE_SSL_CLIENT_CERT_PTR ENGINE_get_ssl_client_cert_function(const ENGINE
529 *e);
530ENGINE_CIPHERS_PTR ENGINE_get_ciphers(const ENGINE *e);
531ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e);
532ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e);
533ENGINE_PKEY_ASN1_METHS_PTR ENGINE_get_pkey_asn1_meths(const ENGINE *e);
534const EVP_CIPHER *ENGINE_get_cipher(ENGINE *e, int nid);
535const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid);
536const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid);
537const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid);
538const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth_str(ENGINE *e,
539 const char *str,
540 int len);
541const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe,
542 const char *str,
543 int len);
544const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e);
545int ENGINE_get_flags(const ENGINE *e);
546
547/*
548 * FUNCTIONAL functions. These functions deal with ENGINE structures that
549 * have (or will) be initialised for use. Broadly speaking, the structural
550 * functions are useful for iterating the list of available engine types,
551 * creating new engine types, and other "list" operations. These functions
552 * actually deal with ENGINEs that are to be used. As such these functions
553 * can fail (if applicable) when particular engines are unavailable - eg. if
554 * a hardware accelerator is not attached or not functioning correctly. Each
555 * ENGINE has 2 reference counts; structural and functional. Every time a
556 * functional reference is obtained or released, a corresponding structural
557 * reference is automatically obtained or released too.
558 */
559
560/*
561 * Initialise a engine type for use (or up its reference count if it's
562 * already in use). This will fail if the engine is not currently operational
563 * and cannot initialise.
564 */
565int ENGINE_init(ENGINE *e);
566/*
567 * Free a functional reference to a engine type. This does not require a
568 * corresponding call to ENGINE_free as it also releases a structural
569 * reference.
570 */
571int ENGINE_finish(ENGINE *e);
572
573/*
574 * The following functions handle keys that are stored in some secondary
575 * location, handled by the engine. The storage may be on a card or
576 * whatever.
577 */
578EVP_PKEY *ENGINE_load_private_key(ENGINE *e, const char *key_id,
579 UI_METHOD *ui_method, void *callback_data);
580EVP_PKEY *ENGINE_load_public_key(ENGINE *e, const char *key_id,
581 UI_METHOD *ui_method, void *callback_data);
582int ENGINE_load_ssl_client_cert(ENGINE *e, SSL *s,
583 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
584 EVP_PKEY **ppkey, STACK_OF(X509) **pother,
585 UI_METHOD *ui_method, void *callback_data);
586
587/*
588 * This returns a pointer for the current ENGINE structure that is (by
589 * default) performing any RSA operations. The value returned is an
590 * incremented reference, so it should be free'd (ENGINE_finish) before it is
591 * discarded.
592 */
593ENGINE *ENGINE_get_default_RSA(void);
594/* Same for the other "methods" */
595ENGINE *ENGINE_get_default_DSA(void);
596ENGINE *ENGINE_get_default_EC(void);
597ENGINE *ENGINE_get_default_DH(void);
598ENGINE *ENGINE_get_default_RAND(void);
599/*
600 * These functions can be used to get a functional reference to perform
601 * ciphering or digesting corresponding to "nid".
602 */
603ENGINE *ENGINE_get_cipher_engine(int nid);
604ENGINE *ENGINE_get_digest_engine(int nid);
605ENGINE *ENGINE_get_pkey_meth_engine(int nid);
606ENGINE *ENGINE_get_pkey_asn1_meth_engine(int nid);
607
608/*
609 * This sets a new default ENGINE structure for performing RSA operations. If
610 * the result is non-zero (success) then the ENGINE structure will have had
611 * its reference count up'd so the caller should still free their own
612 * reference 'e'.
613 */
614int ENGINE_set_default_RSA(ENGINE *e);
615int ENGINE_set_default_string(ENGINE *e, const char *def_list);
616/* Same for the other "methods" */
617int ENGINE_set_default_DSA(ENGINE *e);
618int ENGINE_set_default_EC(ENGINE *e);
619int ENGINE_set_default_DH(ENGINE *e);
620int ENGINE_set_default_RAND(ENGINE *e);
621int ENGINE_set_default_ciphers(ENGINE *e);
622int ENGINE_set_default_digests(ENGINE *e);
623int ENGINE_set_default_pkey_meths(ENGINE *e);
624int ENGINE_set_default_pkey_asn1_meths(ENGINE *e);
625
626/*
627 * The combination "set" - the flags are bitwise "OR"d from the
628 * ENGINE_METHOD_*** defines above. As with the "ENGINE_register_complete()"
629 * function, this function can result in unnecessary static linkage. If your
630 * application requires only specific functionality, consider using more
631 * selective functions.
632 */
633int ENGINE_set_default(ENGINE *e, unsigned int flags);
634
635void ENGINE_add_conf_module(void);
636
637/* Deprecated functions ... */
638/* int ENGINE_clear_defaults(void); */
639
640/**************************/
641/* DYNAMIC ENGINE SUPPORT */
642/**************************/
643
644/* Binary/behaviour compatibility levels */
645# define OSSL_DYNAMIC_VERSION (unsigned long)0x00030000
646/*
647 * Binary versions older than this are too old for us (whether we're a loader
648 * or a loadee)
649 */
650# define OSSL_DYNAMIC_OLDEST (unsigned long)0x00030000
651
652/*
653 * When compiling an ENGINE entirely as an external shared library, loadable
654 * by the "dynamic" ENGINE, these types are needed. The 'dynamic_fns'
655 * structure type provides the calling application's (or library's) error
656 * functionality and memory management function pointers to the loaded
657 * library. These should be used/set in the loaded library code so that the
658 * loading application's 'state' will be used/changed in all operations. The
659 * 'static_state' pointer allows the loaded library to know if it shares the
660 * same static data as the calling application (or library), and thus whether
661 * these callbacks need to be set or not.
662 */
663typedef void *(*dyn_MEM_malloc_fn) (size_t, const char *, int);
664typedef void *(*dyn_MEM_realloc_fn) (void *, size_t, const char *, int);
665typedef void (*dyn_MEM_free_fn) (void *, const char *, int);
666typedef struct st_dynamic_MEM_fns {
667 dyn_MEM_malloc_fn malloc_fn;
668 dyn_MEM_realloc_fn realloc_fn;
669 dyn_MEM_free_fn free_fn;
670} dynamic_MEM_fns;
671/*
672 * FIXME: Perhaps the memory and locking code (crypto.h) should declare and
673 * use these types so we (and any other dependent code) can simplify a bit??
674 */
675/* The top-level structure */
676typedef struct st_dynamic_fns {
677 void *static_state;
678 dynamic_MEM_fns mem_fns;
679} dynamic_fns;
680
681/*
682 * The version checking function should be of this prototype. NB: The
683 * ossl_version value passed in is the OSSL_DYNAMIC_VERSION of the loading
684 * code. If this function returns zero, it indicates a (potential) version
685 * incompatibility and the loaded library doesn't believe it can proceed.
686 * Otherwise, the returned value is the (latest) version supported by the
687 * loading library. The loader may still decide that the loaded code's
688 * version is unsatisfactory and could veto the load. The function is
689 * expected to be implemented with the symbol name "v_check", and a default
690 * implementation can be fully instantiated with
691 * IMPLEMENT_DYNAMIC_CHECK_FN().
692 */
693typedef unsigned long (*dynamic_v_check_fn) (unsigned long ossl_version);
694# define IMPLEMENT_DYNAMIC_CHECK_FN() \
695 OPENSSL_EXPORT unsigned long v_check(unsigned long v); \
696 OPENSSL_EXPORT unsigned long v_check(unsigned long v) { \
697 if (v >= OSSL_DYNAMIC_OLDEST) return OSSL_DYNAMIC_VERSION; \
698 return 0; }
699
700/*
701 * This function is passed the ENGINE structure to initialise with its own
702 * function and command settings. It should not adjust the structural or
703 * functional reference counts. If this function returns zero, (a) the load
704 * will be aborted, (b) the previous ENGINE state will be memcpy'd back onto
705 * the structure, and (c) the shared library will be unloaded. So
706 * implementations should do their own internal cleanup in failure
707 * circumstances otherwise they could leak. The 'id' parameter, if non-NULL,
708 * represents the ENGINE id that the loader is looking for. If this is NULL,
709 * the shared library can choose to return failure or to initialise a
710 * 'default' ENGINE. If non-NULL, the shared library must initialise only an
711 * ENGINE matching the passed 'id'. The function is expected to be
712 * implemented with the symbol name "bind_engine". A standard implementation
713 * can be instantiated with IMPLEMENT_DYNAMIC_BIND_FN(fn) where the parameter
714 * 'fn' is a callback function that populates the ENGINE structure and
715 * returns an int value (zero for failure). 'fn' should have prototype;
716 * [static] int fn(ENGINE *e, const char *id);
717 */
718typedef int (*dynamic_bind_engine) (ENGINE *e, const char *id,
719 const dynamic_fns *fns);
720# define IMPLEMENT_DYNAMIC_BIND_FN(fn) \
721 OPENSSL_EXPORT \
722 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); \
723 OPENSSL_EXPORT \
724 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { \
725 if (ENGINE_get_static_state() == fns->static_state) goto skip_cbs; \
726 CRYPTO_set_mem_functions(fns->mem_fns.malloc_fn, \
727 fns->mem_fns.realloc_fn, \
728 fns->mem_fns.free_fn); \
729 skip_cbs: \
730 if (!fn(e, id)) return 0; \
731 return 1; }
732
733/*
734 * If the loading application (or library) and the loaded ENGINE library
735 * share the same static data (eg. they're both dynamically linked to the
736 * same libcrypto.so) we need a way to avoid trying to set system callbacks -
737 * this would fail, and for the same reason that it's unnecessary to try. If
738 * the loaded ENGINE has (or gets from through the loader) its own copy of
739 * the libcrypto static data, we will need to set the callbacks. The easiest
740 * way to detect this is to have a function that returns a pointer to some
741 * static data and let the loading application and loaded ENGINE compare
742 * their respective values.
743 */
744void *ENGINE_get_static_state(void);
745
746# if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV)
747DEPRECATEDIN_1_1_0(void ENGINE_setup_bsd_cryptodev(void))
748# endif
749
750/* BEGIN ERROR CODES */
751/*
752 * The following lines are auto generated by the script mkerr.pl. Any changes
753 * made after this point may be overwritten when the script is next run.
754 */
755
756int ERR_load_ENGINE_strings(void);
757
758/* Error codes for the ENGINE functions. */
759
760/* Function codes. */
761# define ENGINE_F_DYNAMIC_CTRL 180
762# define ENGINE_F_DYNAMIC_GET_DATA_CTX 181
763# define ENGINE_F_DYNAMIC_LOAD 182
764# define ENGINE_F_DYNAMIC_SET_DATA_CTX 183
765# define ENGINE_F_ENGINE_ADD 105
766# define ENGINE_F_ENGINE_BY_ID 106
767# define ENGINE_F_ENGINE_CMD_IS_EXECUTABLE 170
768# define ENGINE_F_ENGINE_CTRL 142
769# define ENGINE_F_ENGINE_CTRL_CMD 178
770# define ENGINE_F_ENGINE_CTRL_CMD_STRING 171
771# define ENGINE_F_ENGINE_FINISH 107
772# define ENGINE_F_ENGINE_GET_CIPHER 185
773# define ENGINE_F_ENGINE_GET_DIGEST 186
774# define ENGINE_F_ENGINE_GET_FIRST 195
775# define ENGINE_F_ENGINE_GET_LAST 196
776# define ENGINE_F_ENGINE_GET_NEXT 115
777# define ENGINE_F_ENGINE_GET_PKEY_ASN1_METH 193
778# define ENGINE_F_ENGINE_GET_PKEY_METH 192
779# define ENGINE_F_ENGINE_GET_PREV 116
780# define ENGINE_F_ENGINE_INIT 119
781# define ENGINE_F_ENGINE_LIST_ADD 120
782# define ENGINE_F_ENGINE_LIST_REMOVE 121
783# define ENGINE_F_ENGINE_LOAD_PRIVATE_KEY 150
784# define ENGINE_F_ENGINE_LOAD_PUBLIC_KEY 151
785# define ENGINE_F_ENGINE_LOAD_SSL_CLIENT_CERT 194
786# define ENGINE_F_ENGINE_NEW 122
787# define ENGINE_F_ENGINE_PKEY_ASN1_FIND_STR 197
788# define ENGINE_F_ENGINE_REMOVE 123
789# define ENGINE_F_ENGINE_SET_DEFAULT_STRING 189
790# define ENGINE_F_ENGINE_SET_ID 129
791# define ENGINE_F_ENGINE_SET_NAME 130
792# define ENGINE_F_ENGINE_TABLE_REGISTER 184
793# define ENGINE_F_ENGINE_UNLOCKED_FINISH 191
794# define ENGINE_F_ENGINE_UP_REF 190
795# define ENGINE_F_INT_CTRL_HELPER 172
796# define ENGINE_F_INT_ENGINE_CONFIGURE 188
797# define ENGINE_F_INT_ENGINE_MODULE_INIT 187
798
799/* Reason codes. */
800# define ENGINE_R_ALREADY_LOADED 100
801# define ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER 133
802# define ENGINE_R_CMD_NOT_EXECUTABLE 134
803# define ENGINE_R_COMMAND_TAKES_INPUT 135
804# define ENGINE_R_COMMAND_TAKES_NO_INPUT 136
805# define ENGINE_R_CONFLICTING_ENGINE_ID 103
806# define ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED 119
807# define ENGINE_R_DSO_FAILURE 104
808# define ENGINE_R_DSO_NOT_FOUND 132
809# define ENGINE_R_ENGINES_SECTION_ERROR 148
810# define ENGINE_R_ENGINE_CONFIGURATION_ERROR 102
811# define ENGINE_R_ENGINE_IS_NOT_IN_LIST 105
812# define ENGINE_R_ENGINE_SECTION_ERROR 149
813# define ENGINE_R_FAILED_LOADING_PRIVATE_KEY 128
814# define ENGINE_R_FAILED_LOADING_PUBLIC_KEY 129
815# define ENGINE_R_FINISH_FAILED 106
816# define ENGINE_R_ID_OR_NAME_MISSING 108
817# define ENGINE_R_INIT_FAILED 109
818# define ENGINE_R_INTERNAL_LIST_ERROR 110
819# define ENGINE_R_INVALID_ARGUMENT 143
820# define ENGINE_R_INVALID_CMD_NAME 137
821# define ENGINE_R_INVALID_CMD_NUMBER 138
822# define ENGINE_R_INVALID_INIT_VALUE 151
823# define ENGINE_R_INVALID_STRING 150
824# define ENGINE_R_NOT_INITIALISED 117
825# define ENGINE_R_NOT_LOADED 112
826# define ENGINE_R_NO_CONTROL_FUNCTION 120
827# define ENGINE_R_NO_INDEX 144
828# define ENGINE_R_NO_LOAD_FUNCTION 125
829# define ENGINE_R_NO_REFERENCE 130
830# define ENGINE_R_NO_SUCH_ENGINE 116
831# define ENGINE_R_UNIMPLEMENTED_CIPHER 146
832# define ENGINE_R_UNIMPLEMENTED_DIGEST 147
833# define ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD 101
834# define ENGINE_R_VERSION_INCOMPATIBILITY 145
835
836# ifdef __cplusplus
837}
838# endif
839# endif
840#endif
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