* project 2000.
*/
/* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ * Copyright (c) 1999-2004 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* Hudson (tjh@cryptsoft.com).
*
*/
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ * ECDH support in OpenSSL originally developed by
+ * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
+ */
#ifndef HEADER_ENGINE_H
#define HEADER_ENGINE_H
-#include <openssl/types.h>
+#include <openssl/opensslconf.h>
+
+#ifdef OPENSSL_NO_ENGINE
+#error ENGINE is disabled.
+#endif
+
+#ifndef OPENSSL_NO_DEPRECATED
#include <openssl/bn.h>
#ifndef OPENSSL_NO_RSA
#include <openssl/rsa.h>
#ifndef OPENSSL_NO_DH
#include <openssl/dh.h>
#endif
+#ifndef OPENSSL_NO_ECDH
+#include <openssl/ecdh.h>
+#endif
+#ifndef OPENSSL_NO_ECDSA
+#include <openssl/ecdsa.h>
+#endif
#include <openssl/rand.h>
+#include <openssl/store.h>
#include <openssl/ui.h>
+#include <openssl/err.h>
+#endif
+
+#include <openssl/ossl_typ.h>
#include <openssl/symhacks.h>
#ifdef __cplusplus
extern "C" {
#endif
-/* Fixups for missing algorithms */
-#ifdef OPENSSL_NO_RSA
-typedef void RSA_METHOD;
-#endif
-#ifdef OPENSSL_NO_DSA
-typedef void DSA_METHOD;
-#endif
-#ifdef OPENSSL_NO_DH
-typedef void DH_METHOD;
-#endif
-
/* These flags are used to control combinations of algorithm (methods)
* by bitwise "OR"ing. */
#define ENGINE_METHOD_RSA (unsigned int)0x0001
#define ENGINE_METHOD_DSA (unsigned int)0x0002
#define ENGINE_METHOD_DH (unsigned int)0x0004
#define ENGINE_METHOD_RAND (unsigned int)0x0008
-#define ENGINE_METHOD_BN_MOD_EXP (unsigned int)0x0010
-#define ENGINE_METHOD_BN_MOD_EXP_CRT (unsigned int)0x0020
+#define ENGINE_METHOD_ECDH (unsigned int)0x0010
+#define ENGINE_METHOD_ECDSA (unsigned int)0x0020
+#define ENGINE_METHOD_CIPHERS (unsigned int)0x0040
+#define ENGINE_METHOD_DIGESTS (unsigned int)0x0080
+#define ENGINE_METHOD_STORE (unsigned int)0x0100
+#define ENGINE_METHOD_PKEY_METHS (unsigned int)0x0200
/* Obvious all-or-nothing cases. */
#define ENGINE_METHOD_ALL (unsigned int)0xFFFF
#define ENGINE_METHOD_NONE (unsigned int)0x0000
+/* This(ese) flag(s) controls behaviour of the ENGINE_TABLE mechanism used
+ * internally to control registration of ENGINE implementations, and can be set
+ * by ENGINE_set_table_flags(). The "NOINIT" flag prevents attempts to
+ * initialise registered ENGINEs if they are not already initialised. */
+#define ENGINE_TABLE_FLAG_NOINIT (unsigned int)0x0001
+
/* ENGINE flags that can be set by ENGINE_set_flags(). */
/* #define ENGINE_FLAGS_MALLOCED 0x0001 */ /* Not used */
handles/connections etc. */
#define ENGINE_CTRL_SET_USER_INTERFACE 4 /* Alternative to callback */
#define ENGINE_CTRL_SET_CALLBACK_DATA 5 /* User-specific data, used
- when calling the password
- callback and the user
- interface */
+ when calling the password
+ callback and the user
+ interface */
+#define ENGINE_CTRL_LOAD_CONFIGURATION 6 /* Load a configuration, given
+ a string that represents a
+ file name or so */
+#define ENGINE_CTRL_LOAD_SECTION 7 /* Load data from a given
+ section in the already loaded
+ configuration */
/* These control commands allow an application to deal with an arbitrary engine
* in a dynamic way. Warn: Negative return values indicate errors FOR THESE
/* ENGINE implementations should start the numbering of their own control
* commands from this value. (ie. ENGINE_CMD_BASE, ENGINE_CMD_BASE + 1, etc). */
-#define ENGINE_CMD_BASE 200
+#define ENGINE_CMD_BASE 200
/* NB: These 2 nCipher "chil" control commands are deprecated, and their
* functionality is now available through ENGINE-specific control commands
unsigned int cmd_flags; /* The input the command expects */
} ENGINE_CMD_DEFN;
-/* As we're missing a BIGNUM_METHOD, we need a couple of locally
- * defined function types that engines can implement. */
-
-/* mod_exp operation, calculates; r = a ^ p mod m
- * NB: ctx can be NULL, but if supplied, the implementation may use
- * it if it wishes. */
-typedef int (*BN_MOD_EXP)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx);
-
-/* private key operation for RSA, provided seperately in case other
- * RSA implementations wish to use it. */
-typedef int (*BN_MOD_EXP_CRT)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *q, const BIGNUM *dmp1, const BIGNUM *dmq1,
- const BIGNUM *iqmp, BN_CTX *ctx);
-
-/* The list of "engine" types is a static array of (const ENGINE*)
- * pointers (not dynamic because static is fine for now and we otherwise
- * have to hook an appropriate load/unload function in to initialise and
- * cleanup). */
-struct engine_st;
-typedef struct engine_st ENGINE;
-
/* Generic function pointer */
-typedef int (*ENGINE_GEN_FUNC_PTR)();
+typedef int (*ENGINE_GEN_FUNC_PTR)(void);
/* Generic function pointer taking no arguments */
typedef int (*ENGINE_GEN_INT_FUNC_PTR)(ENGINE *);
/* Specific control function pointer */
-typedef int (*ENGINE_CTRL_FUNC_PTR)(ENGINE *, int, long, void *, void (*f)());
+typedef int (*ENGINE_CTRL_FUNC_PTR)(ENGINE *, int, long, void *, void (*f)(void));
/* Generic load_key function pointer */
typedef EVP_PKEY * (*ENGINE_LOAD_KEY_PTR)(ENGINE *, const char *,
UI_METHOD *ui_method, void *callback_data);
-
+/* These callback types are for an ENGINE's handler for cipher and digest logic.
+ * These handlers have these prototypes;
+ * int foo(ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid);
+ * int foo(ENGINE *e, const EVP_MD **digest, const int **nids, int nid);
+ * Looking at how to implement these handlers in the case of cipher support, if
+ * the framework wants the EVP_CIPHER for 'nid', it will call;
+ * foo(e, &p_evp_cipher, NULL, nid); (return zero for failure)
+ * If the framework wants a list of supported 'nid's, it will call;
+ * foo(e, NULL, &p_nids, 0); (returns number of 'nids' or -1 for error)
+ */
+/* Returns to a pointer to the array of supported cipher 'nid's. If the second
+ * parameter is non-NULL it is set to the size of the returned array. */
+typedef int (*ENGINE_CIPHERS_PTR)(ENGINE *, const EVP_CIPHER **, const int **, int);
+typedef int (*ENGINE_DIGESTS_PTR)(ENGINE *, const EVP_MD **, const int **, int);
+typedef int (*ENGINE_PKEY_METHS_PTR)(ENGINE *, const EVP_PKEY_METHOD **, const int **, int);
/* STRUCTURE functions ... all of these functions deal with pointers to ENGINE
* structures where the pointers have a "structural reference". This means that
* their reference is to allowed access to the structure but it does not imply
int ENGINE_remove(ENGINE *e);
/* Retrieve an engine from the list by its unique "id" value. */
ENGINE *ENGINE_by_id(const char *id);
-/* Add all the built-in engines. By default, only the OpenSSL software
- engine is loaded */
-void ENGINE_load_cswift(void);
-void ENGINE_load_chil(void);
+/* Add all the built-in engines. */
+void ENGINE_load_openssl(void);
+void ENGINE_load_dynamic(void);
+#ifndef OPENSSL_NO_STATIC_ENGINE
+void ENGINE_load_4758cca(void);
+void ENGINE_load_aep(void);
void ENGINE_load_atalla(void);
+void ENGINE_load_chil(void);
+void ENGINE_load_cswift(void);
+#ifndef OPENSSL_NO_GMP
+void ENGINE_load_gmp(void);
+#endif
void ENGINE_load_nuron(void);
+void ENGINE_load_sureware(void);
void ENGINE_load_ubsec(void);
-void ENGINE_load_openbsd_dev_crypto(void);
+#endif
+void ENGINE_load_cryptodev(void);
+void ENGINE_load_padlock(void);
void ENGINE_load_builtin_engines(void);
-/* Load all the currently known ciphers from all engines */
-void ENGINE_load_ciphers(void);
+/* Get and set global flags (ENGINE_TABLE_FLAG_***) for the implementation
+ * "registry" handling. */
+unsigned int ENGINE_get_table_flags(void);
+void ENGINE_set_table_flags(unsigned int flags);
+
+/* Manage registration of ENGINEs per "table". For each type, there are 3
+ * functions;
+ * ENGINE_register_***(e) - registers the implementation from 'e' (if it has one)
+ * ENGINE_unregister_***(e) - unregister the implementation from 'e'
+ * ENGINE_register_all_***() - call ENGINE_register_***() for each 'e' in the list
+ * Cleanup is automatically registered from each table when required, so
+ * ENGINE_cleanup() will reverse any "register" operations. */
+
+int ENGINE_register_RSA(ENGINE *e);
+void ENGINE_unregister_RSA(ENGINE *e);
+void ENGINE_register_all_RSA(void);
+
+int ENGINE_register_DSA(ENGINE *e);
+void ENGINE_unregister_DSA(ENGINE *e);
+void ENGINE_register_all_DSA(void);
+
+int ENGINE_register_ECDH(ENGINE *e);
+void ENGINE_unregister_ECDH(ENGINE *e);
+void ENGINE_register_all_ECDH(void);
+
+int ENGINE_register_ECDSA(ENGINE *e);
+void ENGINE_unregister_ECDSA(ENGINE *e);
+void ENGINE_register_all_ECDSA(void);
+
+int ENGINE_register_DH(ENGINE *e);
+void ENGINE_unregister_DH(ENGINE *e);
+void ENGINE_register_all_DH(void);
+
+int ENGINE_register_RAND(ENGINE *e);
+void ENGINE_unregister_RAND(ENGINE *e);
+void ENGINE_register_all_RAND(void);
+
+int ENGINE_register_STORE(ENGINE *e);
+void ENGINE_unregister_STORE(ENGINE *e);
+void ENGINE_register_all_STORE(void);
+
+int ENGINE_register_ciphers(ENGINE *e);
+void ENGINE_unregister_ciphers(ENGINE *e);
+void ENGINE_register_all_ciphers(void);
+
+int ENGINE_register_digests(ENGINE *e);
+void ENGINE_unregister_digests(ENGINE *e);
+void ENGINE_register_all_digests(void);
+
+int ENGINE_register_pkey_meths(ENGINE *e);
+void ENGINE_unregister_pkey_meths(ENGINE *e);
+void ENGINE_register_all_pkey_meths(void);
+
+/* These functions register all support from the above categories. Note, use of
+ * these functions can result in static linkage of code your application may not
+ * need. If you only need a subset of functionality, consider using more
+ * selective initialisation. */
+int ENGINE_register_complete(ENGINE *e);
+int ENGINE_register_all_complete(void);
/* Send parametrised control commands to the engine. The possibilities to send
* down an integer, a pointer to data or a function pointer are provided. Any of
* reference to an engine, but many control commands may require the engine be
* functional. The caller should be aware of trying commands that require an
* operational ENGINE, and only use functional references in such situations. */
-int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)());
+int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
/* This function tests if an ENGINE-specific command is usable as a "setting".
* Eg. in an application's config file that gets processed through
* See the comment on ENGINE_ctrl_cmd_string() for an explanation on how to
* use the cmd_name and cmd_optional. */
int ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name,
- long i, void *p, void (*f)(), int cmd_optional);
+ long i, void *p, void (*f)(void), int cmd_optional);
/* This function passes a command-name and argument to an ENGINE. The cmd_name
* is converted to a command number and the control command is called using
* compatibility! */
ENGINE *ENGINE_new(void);
int ENGINE_free(ENGINE *e);
+int ENGINE_up_ref(ENGINE *e);
int ENGINE_set_id(ENGINE *e, const char *id);
int ENGINE_set_name(ENGINE *e, const char *name);
int ENGINE_set_RSA(ENGINE *e, const RSA_METHOD *rsa_meth);
int ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth);
+int ENGINE_set_ECDH(ENGINE *e, const ECDH_METHOD *ecdh_meth);
+int ENGINE_set_ECDSA(ENGINE *e, const ECDSA_METHOD *ecdsa_meth);
int ENGINE_set_DH(ENGINE *e, const DH_METHOD *dh_meth);
int ENGINE_set_RAND(ENGINE *e, const RAND_METHOD *rand_meth);
-int ENGINE_set_BN_mod_exp(ENGINE *e, BN_MOD_EXP bn_mod_exp);
-int ENGINE_set_BN_mod_exp_crt(ENGINE *e, BN_MOD_EXP_CRT bn_mod_exp_crt);
+int ENGINE_set_STORE(ENGINE *e, const STORE_METHOD *store_meth);
+int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f);
int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f);
int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f);
int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f);
int ENGINE_set_load_privkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpriv_f);
int ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f);
+int ENGINE_set_ciphers(ENGINE *e, ENGINE_CIPHERS_PTR f);
+int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f);
+int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f);
int ENGINE_set_flags(ENGINE *e, int flags);
int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns);
-int ENGINE_add_cipher(ENGINE *e,const EVP_CIPHER *c);
-/* Copies across all ENGINE methods and pointers. NB: This does *not* change
- * reference counts however. */
-int ENGINE_cpy(ENGINE *dest, const ENGINE *src);
-/* These functions (and the "get" function lower down) allow control over any
- * per-structure ENGINE data. */
+/* These functions allow control over any per-structure ENGINE data. */
int ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg);
-/* Cleans the internal engine list. This should only be used when the
- * application is about to exit or restart operation (the next operation
- * requiring the ENGINE list will re-initialise it with defaults). NB: Dynamic
- * ENGINEs will only truly unload (including any allocated data or loaded
- * shared-libraries) if all remaining references are released too - so keys,
- * certificates, etc all need to be released for an in-use ENGINE to unload. */
+void *ENGINE_get_ex_data(const ENGINE *e, int idx);
+
+/* This function cleans up anything that needs it. Eg. the ENGINE_add() function
+ * automatically ensures the list cleanup function is registered to be called
+ * from ENGINE_cleanup(). Similarly, all ENGINE_register_*** functions ensure
+ * ENGINE_cleanup() will clean up after them. */
void ENGINE_cleanup(void);
/* These return values from within the ENGINE structure. These can be useful
const char *ENGINE_get_name(const ENGINE *e);
const RSA_METHOD *ENGINE_get_RSA(const ENGINE *e);
const DSA_METHOD *ENGINE_get_DSA(const ENGINE *e);
+const ECDH_METHOD *ENGINE_get_ECDH(const ENGINE *e);
+const ECDSA_METHOD *ENGINE_get_ECDSA(const ENGINE *e);
const DH_METHOD *ENGINE_get_DH(const ENGINE *e);
const RAND_METHOD *ENGINE_get_RAND(const ENGINE *e);
-int ENGINE_cipher_num(const ENGINE *e);
-const EVP_CIPHER *ENGINE_get_cipher(const ENGINE *e, int n);
-BN_MOD_EXP ENGINE_get_BN_mod_exp(const ENGINE *e);
-BN_MOD_EXP_CRT ENGINE_get_BN_mod_exp_crt(const ENGINE *e);
+const STORE_METHOD *ENGINE_get_STORE(const ENGINE *e);
+ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e);
ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e);
ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e);
ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e);
ENGINE_LOAD_KEY_PTR ENGINE_get_load_privkey_function(const ENGINE *e);
ENGINE_LOAD_KEY_PTR ENGINE_get_load_pubkey_function(const ENGINE *e);
+ENGINE_CIPHERS_PTR ENGINE_get_ciphers(const ENGINE *e);
+ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e);
+ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e);
+const EVP_CIPHER *ENGINE_get_cipher(ENGINE *e, int nid);
+const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid);
+const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid);
const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e);
int ENGINE_get_flags(const ENGINE *e);
-void *ENGINE_get_ex_data(const ENGINE *e, int idx);
/* FUNCTIONAL functions. These functions deal with ENGINE structures
* that have (or will) be initialised for use. Broadly speaking, the
ENGINE *ENGINE_get_default_RSA(void);
/* Same for the other "methods" */
ENGINE *ENGINE_get_default_DSA(void);
+ENGINE *ENGINE_get_default_ECDH(void);
+ENGINE *ENGINE_get_default_ECDSA(void);
ENGINE *ENGINE_get_default_DH(void);
ENGINE *ENGINE_get_default_RAND(void);
-ENGINE *ENGINE_get_default_BN_mod_exp(void);
-ENGINE *ENGINE_get_default_BN_mod_exp_crt(void);
+/* These functions can be used to get a functional reference to perform
+ * ciphering or digesting corresponding to "nid". */
+ENGINE *ENGINE_get_cipher_engine(int nid);
+ENGINE *ENGINE_get_digest_engine(int nid);
+ENGINE *ENGINE_get_pkey_meth_engine(int nid);
/* This sets a new default ENGINE structure for performing RSA
* operations. If the result is non-zero (success) then the ENGINE
* structure will have had its reference count up'd so the caller
* should still free their own reference 'e'. */
int ENGINE_set_default_RSA(ENGINE *e);
+int ENGINE_set_default_string(ENGINE *e, const char *def_list);
/* Same for the other "methods" */
int ENGINE_set_default_DSA(ENGINE *e);
+int ENGINE_set_default_ECDH(ENGINE *e);
+int ENGINE_set_default_ECDSA(ENGINE *e);
int ENGINE_set_default_DH(ENGINE *e);
int ENGINE_set_default_RAND(ENGINE *e);
-int ENGINE_set_default_BN_mod_exp(ENGINE *e);
-int ENGINE_set_default_BN_mod_exp_crt(ENGINE *e);
+int ENGINE_set_default_ciphers(ENGINE *e);
+int ENGINE_set_default_digests(ENGINE *e);
+int ENGINE_set_default_pkey_meths(ENGINE *e);
/* The combination "set" - the flags are bitwise "OR"d from the
- * ENGINE_METHOD_*** defines above. */
+ * ENGINE_METHOD_*** defines above. As with the "ENGINE_register_complete()"
+ * function, this function can result in unnecessary static linkage. If your
+ * application requires only specific functionality, consider using more
+ * selective functions. */
int ENGINE_set_default(ENGINE *e, unsigned int flags);
-/* This function resets all the internal "default" ENGINEs (there's one for each
- * of the various algorithms) to NULL, releasing any references as appropriate.
- * This function is called as part of the ENGINE_cleanup() function, so there's
- * no need to call both (although no harm is done). */
-int ENGINE_clear_defaults(void);
-
-/* Instruct an engine to load any EVP ciphers it knows of */
-/* XXX make this work via defaults? */
-void ENGINE_load_engine_ciphers(ENGINE *e);
-
-/* Obligatory error function. */
-void ERR_load_ENGINE_strings(void);
+void ENGINE_add_conf_module(void);
+
+/* Deprecated functions ... */
+/* int ENGINE_clear_defaults(void); */
+
+/**************************/
+/* DYNAMIC ENGINE SUPPORT */
+/**************************/
+
+/* Binary/behaviour compatibility levels */
+#define OSSL_DYNAMIC_VERSION (unsigned long)0x00020000
+/* Binary versions older than this are too old for us (whether we're a loader or
+ * a loadee) */
+#define OSSL_DYNAMIC_OLDEST (unsigned long)0x00020000
+
+/* When compiling an ENGINE entirely as an external shared library, loadable by
+ * the "dynamic" ENGINE, these types are needed. The 'dynamic_fns' structure
+ * type provides the calling application's (or library's) error functionality
+ * and memory management function pointers to the loaded library. These should
+ * be used/set in the loaded library code so that the loading application's
+ * 'state' will be used/changed in all operations. The 'static_state' pointer
+ * allows the loaded library to know if it shares the same static data as the
+ * calling application (or library), and thus whether these callbacks need to be
+ * set or not. */
+typedef void *(*dyn_MEM_malloc_cb)(size_t);
+typedef void *(*dyn_MEM_realloc_cb)(void *, size_t);
+typedef void (*dyn_MEM_free_cb)(void *);
+typedef struct st_dynamic_MEM_fns {
+ dyn_MEM_malloc_cb malloc_cb;
+ dyn_MEM_realloc_cb realloc_cb;
+ dyn_MEM_free_cb free_cb;
+ } dynamic_MEM_fns;
+/* FIXME: Perhaps the memory and locking code (crypto.h) should declare and use
+ * these types so we (and any other dependant code) can simplify a bit?? */
+typedef void (*dyn_lock_locking_cb)(int,int,const char *,int);
+typedef int (*dyn_lock_add_lock_cb)(int*,int,int,const char *,int);
+typedef struct CRYPTO_dynlock_value *(*dyn_dynlock_create_cb)(
+ const char *,int);
+typedef void (*dyn_dynlock_lock_cb)(int,struct CRYPTO_dynlock_value *,
+ const char *,int);
+typedef void (*dyn_dynlock_destroy_cb)(struct CRYPTO_dynlock_value *,
+ const char *,int);
+typedef struct st_dynamic_LOCK_fns {
+ dyn_lock_locking_cb lock_locking_cb;
+ dyn_lock_add_lock_cb lock_add_lock_cb;
+ dyn_dynlock_create_cb dynlock_create_cb;
+ dyn_dynlock_lock_cb dynlock_lock_cb;
+ dyn_dynlock_destroy_cb dynlock_destroy_cb;
+ } dynamic_LOCK_fns;
+/* The top-level structure */
+typedef struct st_dynamic_fns {
+ void *static_state;
+ const ERR_FNS *err_fns;
+ const CRYPTO_EX_DATA_IMPL *ex_data_fns;
+ dynamic_MEM_fns mem_fns;
+ dynamic_LOCK_fns lock_fns;
+ } dynamic_fns;
+
+/* The version checking function should be of this prototype. NB: The
+ * ossl_version value passed in is the OSSL_DYNAMIC_VERSION of the loading code.
+ * If this function returns zero, it indicates a (potential) version
+ * incompatibility and the loaded library doesn't believe it can proceed.
+ * Otherwise, the returned value is the (latest) version supported by the
+ * loading library. The loader may still decide that the loaded code's version
+ * is unsatisfactory and could veto the load. The function is expected to
+ * be implemented with the symbol name "v_check", and a default implementation
+ * can be fully instantiated with IMPLEMENT_DYNAMIC_CHECK_FN(). */
+typedef unsigned long (*dynamic_v_check_fn)(unsigned long ossl_version);
+#define IMPLEMENT_DYNAMIC_CHECK_FN() \
+ OPENSSL_EXPORT unsigned long v_check(unsigned long v) { \
+ if(v >= OSSL_DYNAMIC_OLDEST) return OSSL_DYNAMIC_VERSION; \
+ return 0; }
+
+/* This function is passed the ENGINE structure to initialise with its own
+ * function and command settings. It should not adjust the structural or
+ * functional reference counts. If this function returns zero, (a) the load will
+ * be aborted, (b) the previous ENGINE state will be memcpy'd back onto the
+ * structure, and (c) the shared library will be unloaded. So implementations
+ * should do their own internal cleanup in failure circumstances otherwise they
+ * could leak. The 'id' parameter, if non-NULL, represents the ENGINE id that
+ * the loader is looking for. If this is NULL, the shared library can choose to
+ * return failure or to initialise a 'default' ENGINE. If non-NULL, the shared
+ * library must initialise only an ENGINE matching the passed 'id'. The function
+ * is expected to be implemented with the symbol name "bind_engine". A standard
+ * implementation can be instantiated with IMPLEMENT_DYNAMIC_BIND_FN(fn) where
+ * the parameter 'fn' is a callback function that populates the ENGINE structure
+ * and returns an int value (zero for failure). 'fn' should have prototype;
+ * [static] int fn(ENGINE *e, const char *id); */
+typedef int (*dynamic_bind_engine)(ENGINE *e, const char *id,
+ const dynamic_fns *fns);
+#define IMPLEMENT_DYNAMIC_BIND_FN(fn) \
+ OPENSSL_EXPORT \
+ int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { \
+ if(ENGINE_get_static_state() == fns->static_state) goto skip_cbs; \
+ if(!CRYPTO_set_mem_functions(fns->mem_fns.malloc_cb, \
+ fns->mem_fns.realloc_cb, fns->mem_fns.free_cb)) \
+ return 0; \
+ CRYPTO_set_locking_callback(fns->lock_fns.lock_locking_cb); \
+ CRYPTO_set_add_lock_callback(fns->lock_fns.lock_add_lock_cb); \
+ CRYPTO_set_dynlock_create_callback(fns->lock_fns.dynlock_create_cb); \
+ CRYPTO_set_dynlock_lock_callback(fns->lock_fns.dynlock_lock_cb); \
+ CRYPTO_set_dynlock_destroy_callback(fns->lock_fns.dynlock_destroy_cb); \
+ if(!CRYPTO_set_ex_data_implementation(fns->ex_data_fns)) \
+ return 0; \
+ if(!ERR_set_implementation(fns->err_fns)) return 0; \
+ skip_cbs: \
+ if(!fn(e,id)) return 0; \
+ return 1; }
+
+/* If the loading application (or library) and the loaded ENGINE library share
+ * the same static data (eg. they're both dynamically linked to the same
+ * libcrypto.so) we need a way to avoid trying to set system callbacks - this
+ * would fail, and for the same reason that it's unnecessary to try. If the
+ * loaded ENGINE has (or gets from through the loader) its own copy of the
+ * libcrypto static data, we will need to set the callbacks. The easiest way to
+ * detect this is to have a function that returns a pointer to some static data
+ * and let the loading application and loaded ENGINE compare their respective
+ * values. */
+void *ENGINE_get_static_state(void);
+
+#if defined(__OpenBSD__) || defined(__FreeBSD__)
+void ENGINE_setup_bsd_cryptodev(void);
+#endif
/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
/* Error codes for the ENGINE functions. */
/* Function codes. */
-#define ENGINE_F_ATALLA_CTRL 173
-#define ENGINE_F_ATALLA_FINISH 159
-#define ENGINE_F_ATALLA_INIT 160
-#define ENGINE_F_ATALLA_MOD_EXP 161
-#define ENGINE_F_ATALLA_RSA_MOD_EXP 162
-#define ENGINE_F_CSWIFT_CTRL 174
-#define ENGINE_F_CSWIFT_DSA_SIGN 133
-#define ENGINE_F_CSWIFT_DSA_VERIFY 134
-#define ENGINE_F_CSWIFT_FINISH 100
-#define ENGINE_F_CSWIFT_INIT 101
-#define ENGINE_F_CSWIFT_MOD_EXP 102
-#define ENGINE_F_CSWIFT_MOD_EXP_CRT 103
-#define ENGINE_F_CSWIFT_RSA_MOD_EXP 104
+#define ENGINE_F_DYNAMIC_CTRL 180
+#define ENGINE_F_DYNAMIC_GET_DATA_CTX 181
+#define ENGINE_F_DYNAMIC_LOAD 182
+#define ENGINE_F_DYNAMIC_SET_DATA_CTX 183
#define ENGINE_F_ENGINE_ADD 105
#define ENGINE_F_ENGINE_BY_ID 106
#define ENGINE_F_ENGINE_CMD_IS_EXECUTABLE 170
#define ENGINE_F_ENGINE_CTRL_CMD 178
#define ENGINE_F_ENGINE_CTRL_CMD_STRING 171
#define ENGINE_F_ENGINE_FINISH 107
-#define ENGINE_F_ENGINE_FREE 108
+#define ENGINE_F_ENGINE_FREE_UTIL 108
+#define ENGINE_F_ENGINE_GET_CIPHER 185
#define ENGINE_F_ENGINE_GET_DEFAULT_TYPE 177
+#define ENGINE_F_ENGINE_GET_DIGEST 186
#define ENGINE_F_ENGINE_GET_NEXT 115
+#define ENGINE_F_ENGINE_GET_PKEY_METH 192
#define ENGINE_F_ENGINE_GET_PREV 116
#define ENGINE_F_ENGINE_INIT 119
#define ENGINE_F_ENGINE_LIST_ADD 120
#define ENGINE_F_ENGINE_LOAD_PUBLIC_KEY 151
#define ENGINE_F_ENGINE_NEW 122
#define ENGINE_F_ENGINE_REMOVE 123
+#define ENGINE_F_ENGINE_SET_DEFAULT_STRING 189
#define ENGINE_F_ENGINE_SET_DEFAULT_TYPE 126
#define ENGINE_F_ENGINE_SET_ID 129
#define ENGINE_F_ENGINE_SET_NAME 130
+#define ENGINE_F_ENGINE_TABLE_REGISTER 184
#define ENGINE_F_ENGINE_UNLOAD_KEY 152
-#define ENGINE_F_HWCRHK_CTRL 143
-#define ENGINE_F_HWCRHK_FINISH 135
-#define ENGINE_F_HWCRHK_GET_PASS 155
-#define ENGINE_F_HWCRHK_INIT 136
-#define ENGINE_F_HWCRHK_INSERT_CARD 179
-#define ENGINE_F_HWCRHK_LOAD_PRIVKEY 153
-#define ENGINE_F_HWCRHK_LOAD_PUBKEY 154
-#define ENGINE_F_HWCRHK_MOD_EXP 137
-#define ENGINE_F_HWCRHK_MOD_EXP_CRT 138
-#define ENGINE_F_HWCRHK_RAND_BYTES 139
-#define ENGINE_F_HWCRHK_RSA_MOD_EXP 140
+#define ENGINE_F_ENGINE_UNLOCKED_FINISH 191
+#define ENGINE_F_ENGINE_UP_REF 190
#define ENGINE_F_INT_CTRL_HELPER 172
+#define ENGINE_F_INT_ENGINE_CONFIGURE 188
+#define ENGINE_F_INT_ENGINE_MODULE_INIT 187
#define ENGINE_F_LOG_MESSAGE 141
-#define ENGINE_F_NURON_CTRL 175
-#define ENGINE_F_NURON_FINISH 157
-#define ENGINE_F_NURON_INIT 156
-#define ENGINE_F_NURON_MOD_EXP 158
-#define ENGINE_F_UBSEC_CTRL 176
-#define ENGINE_F_UBSEC_DSA_SIGN 163
-#define ENGINE_F_UBSEC_DSA_VERIFY 164
-#define ENGINE_F_UBSEC_FINISH 165
-#define ENGINE_F_UBSEC_INIT 166
-#define ENGINE_F_UBSEC_MOD_EXP 167
-#define ENGINE_F_UBSEC_RSA_MOD_EXP 168
-#define ENGINE_F_UBSEC_RSA_MOD_EXP_CRT 169
/* Reason codes. */
#define ENGINE_R_ALREADY_LOADED 100
#define ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER 133
-#define ENGINE_R_BIO_WAS_FREED 121
-#define ENGINE_R_BN_CTX_FULL 101
-#define ENGINE_R_BN_EXPAND_FAIL 102
-#define ENGINE_R_CHIL_ERROR 123
#define ENGINE_R_CMD_NOT_EXECUTABLE 134
#define ENGINE_R_COMMAND_TAKES_INPUT 135
#define ENGINE_R_COMMAND_TAKES_NO_INPUT 136
#define ENGINE_R_DH_NOT_IMPLEMENTED 139
#define ENGINE_R_DSA_NOT_IMPLEMENTED 140
#define ENGINE_R_DSO_FAILURE 104
-#define ENGINE_R_DSO_FUNCTION_NOT_FOUND 131
#define ENGINE_R_DSO_NOT_FOUND 132
+#define ENGINE_R_ENGINES_SECTION_ERROR 148
#define ENGINE_R_ENGINE_IS_NOT_IN_LIST 105
+#define ENGINE_R_ENGINE_SECTION_ERROR 149
#define ENGINE_R_FAILED_LOADING_PRIVATE_KEY 128
#define ENGINE_R_FAILED_LOADING_PUBLIC_KEY 129
#define ENGINE_R_FINISH_FAILED 106
#define ENGINE_R_ID_OR_NAME_MISSING 108
#define ENGINE_R_INIT_FAILED 109
#define ENGINE_R_INTERNAL_LIST_ERROR 110
+#define ENGINE_R_INVALID_ARGUMENT 143
#define ENGINE_R_INVALID_CMD_NAME 137
#define ENGINE_R_INVALID_CMD_NUMBER 138
-#define ENGINE_R_MISSING_KEY_COMPONENTS 111
+#define ENGINE_R_INVALID_INIT_VALUE 151
+#define ENGINE_R_INVALID_STRING 150
#define ENGINE_R_NOT_INITIALISED 117
#define ENGINE_R_NOT_LOADED 112
-#define ENGINE_R_NO_CALLBACK 127
#define ENGINE_R_NO_CONTROL_FUNCTION 120
-#define ENGINE_R_NO_KEY 124
+#define ENGINE_R_NO_INDEX 144
#define ENGINE_R_NO_LOAD_FUNCTION 125
#define ENGINE_R_NO_REFERENCE 130
#define ENGINE_R_NO_SUCH_ENGINE 116
#define ENGINE_R_NO_UNLOAD_FUNCTION 126
-#define ENGINE_R_PRIVATE_KEY_ALGORITHMS_DISABLED 142
#define ENGINE_R_PROVIDE_PARAMETERS 113
-#define ENGINE_R_REQUEST_FAILED 114
-#define ENGINE_R_REQUEST_FALLBACK 118
#define ENGINE_R_RSA_NOT_IMPLEMENTED 141
-#define ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL 122
-#define ENGINE_R_UNIT_FAILURE 115
+#define ENGINE_R_UNIMPLEMENTED_CIPHER 146
+#define ENGINE_R_UNIMPLEMENTED_DIGEST 147
+#define ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD 101
+#define ENGINE_R_VERSION_INCOMPATIBILITY 145
#ifdef __cplusplus
}
projects / openssl.git / blobdiff