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xs/sc_ssl/openssl/source/crypto/engine/engine.h  view on Meta::CPAN

int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg);
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
 * with functional references as well as structural references - it depends
 * which you obtained. Using the result for functional purposes if you only
 * obtained a structural reference may be problematic! */
const char *ENGINE_get_id(const ENGINE *e);
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);
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_SSL_CLIENT_CERT_PTR ENGINE_get_ssl_client_cert_function(const ENGINE *e);
ENGINE_CIPHERS_PTR ENGINE_get_ciphers(const ENGINE *e);
ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e);
const EVP_CIPHER *ENGINE_get_cipher(ENGINE *e, int nid);
const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid);
const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e);
int ENGINE_get_flags(const ENGINE *e);

/* FUNCTIONAL functions. These functions deal with ENGINE structures
 * that have (or will) be initialised for use. Broadly speaking, the
 * structural functions are useful for iterating the list of available
 * engine types, creating new engine types, and other "list" operations.
 * These functions actually deal with ENGINEs that are to be used. As
 * such these functions can fail (if applicable) when particular
 * engines are unavailable - eg. if a hardware accelerator is not
 * attached or not functioning correctly. Each ENGINE has 2 reference
 * counts; structural and functional. Every time a functional reference
 * is obtained or released, a corresponding structural reference is
 * automatically obtained or released too. */

/* Initialise a engine type for use (or up its reference count if it's
 * already in use). This will fail if the engine is not currently
 * operational and cannot initialise. */
int ENGINE_init(ENGINE *e);
/* Free a functional reference to a engine type. This does not require
 * a corresponding call to ENGINE_free as it also releases a structural
 * reference. */
int ENGINE_finish(ENGINE *e);

/* The following functions handle keys that are stored in some secondary
 * location, handled by the engine.  The storage may be on a card or
 * whatever. */
EVP_PKEY *ENGINE_load_private_key(ENGINE *e, const char *key_id,
	UI_METHOD *ui_method, void *callback_data);
EVP_PKEY *ENGINE_load_public_key(ENGINE *e, const char *key_id,
	UI_METHOD *ui_method, void *callback_data);
int ENGINE_load_ssl_client_cert(ENGINE *e, SSL *s,
	STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **ppkey,
	STACK_OF(X509) **pother,
	UI_METHOD *ui_method, void *callback_data);

/* This returns a pointer for the current ENGINE structure that
 * is (by default) performing any RSA operations. The value returned
 * is an incremented reference, so it should be free'd (ENGINE_finish)
 * before it is discarded. */
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);
/* 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);

/* 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_ciphers(ENGINE *e);
int ENGINE_set_default_digests(ENGINE *e);

/* The combination "set" - the flags are bitwise "OR"d from the
 * 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);

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