diff options
Diffstat (limited to 'crypto/engine/engine_lib.c')
| -rw-r--r-- | crypto/engine/engine_lib.c | 488 |
1 files changed, 0 insertions, 488 deletions
diff --git a/crypto/engine/engine_lib.c b/crypto/engine/engine_lib.c deleted file mode 100644 index 1df07af03a6..00000000000 --- a/crypto/engine/engine_lib.c +++ /dev/null @@ -1,488 +0,0 @@ -/* crypto/engine/engine_lib.c */ -/* Written by Geoff Thorpe ([email protected]) for the OpenSSL - * project 2000. - */ -/* ==================================================================== - * Copyright (c) 1999 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 - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * [email protected]. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * ([email protected]). This product includes software written by Tim - * Hudson ([email protected]). - * - */ - -#include <openssl/crypto.h> -#include "cryptlib.h" -#include "engine_int.h" -#include <openssl/engine.h> - -/* These pointers each have their own "functional reference" when they - * are non-NULL. Similarly, when they are retrieved by a call to - * ENGINE_get_default_[RSA|DSA|...] the returned pointer is also a - * reference and the caller is responsible for freeing that when they - * are finished with it (with a call to ENGINE_finish() *NOT* just - * ENGINE_free()!!!!!!). */ -static ENGINE *engine_def_rsa = NULL; -static ENGINE *engine_def_dsa = NULL; -static ENGINE *engine_def_dh = NULL; -static ENGINE *engine_def_rand = NULL; -static ENGINE *engine_def_bn_mod_exp = NULL; -static ENGINE *engine_def_bn_mod_exp_crt = NULL; -/* A static "once-only" flag used to control if/when the above were - * initialised to suitable start-up defaults. */ -static int engine_def_flag = 0; - -/* This is used in certain static utility functions to save code - * repetition for per-algorithm functions. */ -typedef enum { - ENGINE_TYPE_RSA, - ENGINE_TYPE_DSA, - ENGINE_TYPE_DH, - ENGINE_TYPE_RAND, - ENGINE_TYPE_BN_MOD_EXP, - ENGINE_TYPE_BN_MOD_EXP_CRT - } ENGINE_TYPE; - -static void engine_def_check_util(ENGINE **def, ENGINE *val) - { - *def = val; - val->struct_ref++; - val->funct_ref++; - } - -/* In a slight break with convention - this static function must be - * called *outside* any locking of CRYPTO_LOCK_ENGINE. */ -static void engine_def_check(void) - { - ENGINE *e; - if(engine_def_flag) - return; - e = ENGINE_get_first(); - if(e == NULL) - /* The list is empty ... not much we can do! */ - return; - /* We have a structural reference, see if getting a functional - * reference is possible. This is done to cope with init errors - * in the engine - the following locked code does a bunch of - * manual "ENGINE_init"s which do *not* allow such an init - * error so this is worth doing. */ - if(ENGINE_init(e)) - { - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - /* Doing another check here prevents an obvious race - * condition because the whole function itself cannot - * be locked. */ - if(engine_def_flag) - goto skip_set_defaults; - /* OK, we got a functional reference, so we get one each - * for the defaults too. */ - engine_def_check_util(&engine_def_rsa, e); - engine_def_check_util(&engine_def_dsa, e); - engine_def_check_util(&engine_def_dh, e); - engine_def_check_util(&engine_def_rand, e); - engine_def_check_util(&engine_def_bn_mod_exp, e); - engine_def_check_util(&engine_def_bn_mod_exp_crt, e); - engine_def_flag = 1; -skip_set_defaults: - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - /* The "if" needs to be balanced out. */ - ENGINE_finish(e); - } - /* We need to balance out the fact we obtained a structural - * reference to begin with from ENGINE_get_first(). */ - ENGINE_free(e); - } - -/* Initialise a engine type for use (or up its functional reference count - * if it's already in use). */ -int ENGINE_init(ENGINE *e) - { - int to_return = 1; - - if(e == NULL) - { - ENGINEerr(ENGINE_F_ENGINE_INIT,ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - if((e->funct_ref == 0) && e->init) - /* This is the first functional reference and the engine - * requires initialisation so we do it now. */ - to_return = e->init(); - if(to_return) - { - /* OK, we return a functional reference which is also a - * structural reference. */ - e->struct_ref++; - e->funct_ref++; - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - return to_return; - } - -/* Free a functional reference to a engine type */ -int ENGINE_finish(ENGINE *e) - { - int to_return = 1; - - if(e == NULL) - { - ENGINEerr(ENGINE_F_ENGINE_FINISH,ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - if((e->funct_ref == 1) && e->finish) -#if 0 - /* This is the last functional reference and the engine - * requires cleanup so we do it now. */ - to_return = e->finish(); - if(to_return) - { - /* Cleanup the functional reference which is also a - * structural reference. */ - e->struct_ref--; - e->funct_ref--; - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); -#else - /* I'm going to deliberately do a convoluted version of this - * piece of code because we don't want "finish" functions - * being called inside a locked block of code, if at all - * possible. I'd rather have this call take an extra couple - * of ticks than have throughput serialised on a externally- - * provided callback function that may conceivably never come - * back. :-( */ - { - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - /* CODE ALERT: This *IS* supposed to be "=" and NOT "==" :-) */ - if((to_return = e->finish())) - { - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - /* Cleanup the functional reference which is also a - * structural reference. */ - e->struct_ref--; - e->funct_ref--; - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - } - } - else - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); -#endif - return to_return; - } - -EVP_PKEY *ENGINE_load_private_key(ENGINE *e, const char *key_id, - const char *passphrase) - { - EVP_PKEY *pkey; - - if(e == NULL) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY, - ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - if(e->funct_ref == 0) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY, - ENGINE_R_NOT_INITIALISED); - return 0; - } - if (!e->load_privkey) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY, - ENGINE_R_NO_LOAD_FUNCTION); - return 0; - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - pkey = e->load_privkey(key_id, passphrase); - if (!pkey) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY, - ENGINE_R_FAILED_LOADING_PRIVATE_KEY); - return 0; - } - return pkey; - } - -EVP_PKEY *ENGINE_load_public_key(ENGINE *e, const char *key_id, - const char *passphrase) - { - EVP_PKEY *pkey; - - if(e == NULL) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY, - ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - if(e->funct_ref == 0) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY, - ENGINE_R_NOT_INITIALISED); - return 0; - } - if (!e->load_pubkey) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY, - ENGINE_R_NO_LOAD_FUNCTION); - return 0; - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - pkey = e->load_pubkey(key_id, passphrase); - if (!pkey) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY, - ENGINE_R_FAILED_LOADING_PUBLIC_KEY); - return 0; - } - return pkey; - } - -/* Initialise a engine type for use (or up its functional reference count - * if it's already in use). */ -int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)()) - { - if(e == NULL) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL,ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - if(e->struct_ref == 0) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_REFERENCE); - return 0; - } - if (!e->ctrl) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_CONTROL_FUNCTION); - return 0; - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - return e->ctrl(cmd, i, p, f); - } - -static ENGINE *engine_get_default_type(ENGINE_TYPE t) - { - ENGINE *ret = NULL; - - /* engine_def_check is lean and mean and won't replace any - * prior default engines ... so we must ensure that it is always - * the first function to get to touch the default values. */ - engine_def_check(); - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - switch(t) - { - case ENGINE_TYPE_RSA: - ret = engine_def_rsa; break; - case ENGINE_TYPE_DSA: - ret = engine_def_dsa; break; - case ENGINE_TYPE_DH: - ret = engine_def_dh; break; - case ENGINE_TYPE_RAND: - ret = engine_def_rand; break; - case ENGINE_TYPE_BN_MOD_EXP: - ret = engine_def_bn_mod_exp; break; - case ENGINE_TYPE_BN_MOD_EXP_CRT: - ret = engine_def_bn_mod_exp_crt; break; - } - /* Unforunately we can't do this work outside the lock with a - * call to ENGINE_init() because that would leave a race - * condition open. */ - if(ret) - { - ret->struct_ref++; - ret->funct_ref++; - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - return ret; - } - -ENGINE *ENGINE_get_default_RSA(void) - { - return engine_get_default_type(ENGINE_TYPE_RSA); - } - -ENGINE *ENGINE_get_default_DSA(void) - { - return engine_get_default_type(ENGINE_TYPE_DSA); - } - -ENGINE *ENGINE_get_default_DH(void) - { - return engine_get_default_type(ENGINE_TYPE_DH); - } - -ENGINE *ENGINE_get_default_RAND(void) - { - return engine_get_default_type(ENGINE_TYPE_RAND); - } - -ENGINE *ENGINE_get_default_BN_mod_exp(void) - { - return engine_get_default_type(ENGINE_TYPE_BN_MOD_EXP); - } - -ENGINE *ENGINE_get_default_BN_mod_exp_crt(void) - { - return engine_get_default_type(ENGINE_TYPE_BN_MOD_EXP_CRT); - } - -static int engine_set_default_type(ENGINE_TYPE t, ENGINE *e) - { - ENGINE *old = NULL; - - if(e == NULL) - { - ENGINEerr(ENGINE_F_ENGINE_SET_DEFAULT_TYPE, - ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - /* engine_def_check is lean and mean and won't replace any - * prior default engines ... so we must ensure that it is always - * the first function to get to touch the default values. */ - engine_def_check(); - /* Attempt to get a functional reference (we need one anyway, but - * also, 'e' may be just a structural reference being passed in so - * this call may actually be the first). */ - if(!ENGINE_init(e)) - { - ENGINEerr(ENGINE_F_ENGINE_SET_DEFAULT_TYPE, - ENGINE_R_INIT_FAILED); - return 0; - } - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - switch(t) - { - case ENGINE_TYPE_RSA: - old = engine_def_rsa; - engine_def_rsa = e; break; - case ENGINE_TYPE_DSA: - old = engine_def_dsa; - engine_def_dsa = e; break; - case ENGINE_TYPE_DH: - old = engine_def_dh; - engine_def_dh = e; break; - case ENGINE_TYPE_RAND: - old = engine_def_rand; - engine_def_rand = e; break; - case ENGINE_TYPE_BN_MOD_EXP: - old = engine_def_bn_mod_exp; - engine_def_bn_mod_exp = e; break; - case ENGINE_TYPE_BN_MOD_EXP_CRT: - old = engine_def_bn_mod_exp_crt; - engine_def_bn_mod_exp_crt = e; break; - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - /* If we've replaced a previous value, then we need to remove the - * functional reference we had. */ - if(old && !ENGINE_finish(old)) - { - ENGINEerr(ENGINE_F_ENGINE_SET_DEFAULT_TYPE, - ENGINE_R_FINISH_FAILED); - return 0; - } - return 1; - } - -int ENGINE_set_default_RSA(ENGINE *e) - { - return engine_set_default_type(ENGINE_TYPE_RSA, e); - } - -int ENGINE_set_default_DSA(ENGINE *e) - { - return engine_set_default_type(ENGINE_TYPE_DSA, e); - } - -int ENGINE_set_default_DH(ENGINE *e) - { - return engine_set_default_type(ENGINE_TYPE_DH, e); - } - -int ENGINE_set_default_RAND(ENGINE *e) - { - return engine_set_default_type(ENGINE_TYPE_RAND, e); - } - -int ENGINE_set_default_BN_mod_exp(ENGINE *e) - { - return engine_set_default_type(ENGINE_TYPE_BN_MOD_EXP, e); - } - -int ENGINE_set_default_BN_mod_exp_crt(ENGINE *e) - { - return engine_set_default_type(ENGINE_TYPE_BN_MOD_EXP_CRT, e); - } - -int ENGINE_set_default(ENGINE *e, unsigned int flags) - { - if((flags & ENGINE_METHOD_RSA) && e->rsa_meth && - !ENGINE_set_default_RSA(e)) - return 0; - if((flags & ENGINE_METHOD_DSA) && e->dsa_meth && - !ENGINE_set_default_DSA(e)) - return 0; - if((flags & ENGINE_METHOD_DH) && e->dh_meth && - !ENGINE_set_default_DH(e)) - return 0; - if((flags & ENGINE_METHOD_RAND) && e->rand_meth && - !ENGINE_set_default_RAND(e)) - return 0; - if((flags & ENGINE_METHOD_BN_MOD_EXP) && e->bn_mod_exp && - !ENGINE_set_default_BN_mod_exp(e)) - return 0; - if((flags & ENGINE_METHOD_BN_MOD_EXP_CRT) && e->bn_mod_exp_crt && - !ENGINE_set_default_BN_mod_exp_crt(e)) - return 0; - return 1; - } - |