From: Ulf Möller Date: Mon, 10 Sep 2001 20:16:31 +0000 (+0000) Subject: missed one file X-Git-Tag: OpenSSL_0_9_6c~113^2~15 X-Git-Url: https://git.openssl.org/?p=openssl.git;a=commitdiff_plain;h=8e0a2d846177a7f2dcbec7bf0eb34d76bcd56377;hp=e13ae96d7c7c7ea8dac01920da96d991f6760acc missed one file --- diff --git a/crypto/engine/engine_lib.c b/crypto/engine/engine_lib.c deleted file mode 100644 index f82a20ad03..0000000000 --- a/crypto/engine/engine_lib.c +++ /dev/null @@ -1,864 +0,0 @@ -/* crypto/engine/engine_lib.c */ -/* Written by Geoff Thorpe (geoff@geoffthorpe.net) 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 - * licensing@OpenSSL.org. - * - * 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 - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ - -#include -#include "cryptlib.h" -#include "engine_int.h" -#include - -/* 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()!!!!!!). */ -#ifndef OPENSSL_NO_RSA -static ENGINE *engine_def_rsa = NULL; -#endif -#ifndef OPENSSL_NO_DSA -static ENGINE *engine_def_dsa = NULL; -#endif -#ifndef OPENSSL_NO_DH -static ENGINE *engine_def_dh = NULL; -#endif -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; - -/* When querying a ENGINE-specific control command's 'description', this string - * is used if the ENGINE_CMD_DEFN has cmd_desc set to NULL. */ -static const char *int_no_description = ""; - -/* 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++; - engine_ref_debug(val, 0, 1) - engine_ref_debug(val, 1, 1) - } - -/* 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. */ -#ifndef OPENSSL_NO_RSA - engine_def_check_util(&engine_def_rsa, e); -#endif -#ifndef OPENSSL_NO_DSA - engine_def_check_util(&engine_def_dsa, e); -#endif -#ifndef OPENSSL_NO_DH - engine_def_check_util(&engine_def_dh, e); -#endif - 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(e); - if(to_return) - { - /* OK, we return a functional reference which is also a - * structural reference. */ - e->struct_ref++; - e->funct_ref++; - engine_ref_debug(e, 0, 1) - engine_ref_debug(e, 1, 1) - } - 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); - /* Reduce the functional reference count here so if it's the terminating - * case, we can release the lock safely and call the finish() handler - * without risk of a race. We get a race if we leave the count until - * after and something else is calling "finish" at the same time - - * there's a chance that both threads will together take the count from - * 2 to 0 without either calling finish(). */ - e->funct_ref--; - engine_ref_debug(e, 1, -1) - if((e->funct_ref == 0) && e->finish) - { - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - if(!(to_return = e->finish(e))) - { - ENGINEerr(ENGINE_F_ENGINE_FINISH,ENGINE_R_FINISH_FAILED); - return 0; - } - } - else - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); -#ifdef REF_CHECK - if(e->funct_ref < 0) - { - fprintf(stderr,"ENGINE_finish, bad functional reference count\n"); - abort(); - } -#endif - /* Release the structural reference too */ - if(!ENGINE_free(e)) - { - ENGINEerr(ENGINE_F_ENGINE_FINISH,ENGINE_R_FINISH_FAILED); - return 0; - } - return to_return; - } - -EVP_PKEY *ENGINE_load_private_key(ENGINE *e, const char *key_id, - UI_METHOD *ui_method, void *callback_data) - { - 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) - { - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY, - ENGINE_R_NOT_INITIALISED); - return 0; - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - if (!e->load_privkey) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY, - ENGINE_R_NO_LOAD_FUNCTION); - return 0; - } - pkey = e->load_privkey(e, key_id, ui_method, callback_data); - 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, - UI_METHOD *ui_method, void *callback_data) - { - 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) - { - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY, - ENGINE_R_NOT_INITIALISED); - return 0; - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - if (!e->load_pubkey) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY, - ENGINE_R_NO_LOAD_FUNCTION); - return 0; - } - pkey = e->load_pubkey(e, key_id, ui_method, callback_data); - if (!pkey) - { - ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY, - ENGINE_R_FAILED_LOADING_PUBLIC_KEY); - return 0; - } - return pkey; - } - -/* These internal functions handle 'CMD'-related control commands when the - * ENGINE in question has asked us to take care of it (ie. the ENGINE did not - * set the ENGINE_FLAGS_MANUAL_CMD_CTRL flag. */ - -static int int_ctrl_cmd_is_null(const ENGINE_CMD_DEFN *defn) - { - if((defn->cmd_num == 0) || (defn->cmd_name == NULL)) - return 1; - return 0; - } - -static int int_ctrl_cmd_by_name(const ENGINE_CMD_DEFN *defn, const char *s) - { - int idx = 0; - while(!int_ctrl_cmd_is_null(defn) && (strcmp(defn->cmd_name, s) != 0)) - { - idx++; - defn++; - } - if(int_ctrl_cmd_is_null(defn)) - /* The given name wasn't found */ - return -1; - return idx; - } - -static int int_ctrl_cmd_by_num(const ENGINE_CMD_DEFN *defn, unsigned int num) - { - int idx = 0; - /* NB: It is stipulated that 'cmd_defn' lists are ordered by cmd_num. So - * our searches don't need to take any longer than necessary. */ - while(!int_ctrl_cmd_is_null(defn) && (defn->cmd_num < num)) - { - idx++; - defn++; - } - if(defn->cmd_num == num) - return idx; - /* The given cmd_num wasn't found */ - return -1; - } - -static int int_ctrl_helper(ENGINE *e, int cmd, long i, void *p, void (*f)()) - { - int idx; - char *s = (char *)p; - /* Take care of the easy one first (eg. it requires no searches) */ - if(cmd == ENGINE_CTRL_GET_FIRST_CMD_TYPE) - { - if((e->cmd_defns == NULL) || int_ctrl_cmd_is_null(e->cmd_defns)) - return 0; - return e->cmd_defns->cmd_num; - } - /* One or two commands require that "p" be a valid string buffer */ - if((cmd == ENGINE_CTRL_GET_CMD_FROM_NAME) || - (cmd == ENGINE_CTRL_GET_NAME_FROM_CMD) || - (cmd == ENGINE_CTRL_GET_DESC_FROM_CMD)) - { - if(s == NULL) - { - ENGINEerr(ENGINE_F_INT_CTRL_HELPER, - ERR_R_PASSED_NULL_PARAMETER); - return -1; - } - } - /* Now handle cmd_name -> cmd_num conversion */ - if(cmd == ENGINE_CTRL_GET_CMD_FROM_NAME) - { - if((e->cmd_defns == NULL) || ((idx = int_ctrl_cmd_by_name( - e->cmd_defns, s)) < 0)) - { - ENGINEerr(ENGINE_F_INT_CTRL_HELPER, - ENGINE_R_INVALID_CMD_NAME); - return -1; - } - return e->cmd_defns[idx].cmd_num; - } - /* For the rest of the commands, the 'long' argument must specify a - * valie command number - so we need to conduct a search. */ - if((e->cmd_defns == NULL) || ((idx = int_ctrl_cmd_by_num(e->cmd_defns, - (unsigned int)i)) < 0)) - { - ENGINEerr(ENGINE_F_INT_CTRL_HELPER, - ENGINE_R_INVALID_CMD_NUMBER); - return -1; - } - /* Now the logic splits depending on command type */ - switch(cmd) - { - case ENGINE_CTRL_GET_NEXT_CMD_TYPE: - idx++; - if(int_ctrl_cmd_is_null(e->cmd_defns + idx)) - /* end-of-list */ - return 0; - else - return e->cmd_defns[idx].cmd_num; - case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD: - return strlen(e->cmd_defns[idx].cmd_name); - case ENGINE_CTRL_GET_NAME_FROM_CMD: - return sprintf(s, "%s", e->cmd_defns[idx].cmd_name); - case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD: - if(e->cmd_defns[idx].cmd_desc) - return strlen(e->cmd_defns[idx].cmd_desc); - return strlen(int_no_description); - case ENGINE_CTRL_GET_DESC_FROM_CMD: - if(e->cmd_defns[idx].cmd_desc) - return sprintf(s, "%s", e->cmd_defns[idx].cmd_desc); - return sprintf(s, "%s", int_no_description); - case ENGINE_CTRL_GET_CMD_FLAGS: - return e->cmd_defns[idx].cmd_flags; - } - /* Shouldn't really be here ... */ - ENGINEerr(ENGINE_F_INT_CTRL_HELPER,ENGINE_R_INTERNAL_LIST_ERROR); - return -1; - } - -int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)()) - { - int ctrl_exists, ref_exists; - if(e == NULL) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL,ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - ref_exists = ((e->struct_ref > 0) ? 1 : 0); - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - ctrl_exists = ((e->ctrl == NULL) ? 0 : 1); - if(!ref_exists) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_REFERENCE); - return 0; - } - /* Intercept any "root-level" commands before trying to hand them on to - * ctrl() handlers. */ - switch(cmd) - { - case ENGINE_CTRL_HAS_CTRL_FUNCTION: - return ctrl_exists; - case ENGINE_CTRL_GET_FIRST_CMD_TYPE: - case ENGINE_CTRL_GET_NEXT_CMD_TYPE: - case ENGINE_CTRL_GET_CMD_FROM_NAME: - case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD: - case ENGINE_CTRL_GET_NAME_FROM_CMD: - case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD: - case ENGINE_CTRL_GET_DESC_FROM_CMD: - case ENGINE_CTRL_GET_CMD_FLAGS: - if(ctrl_exists && !(e->flags & ENGINE_FLAGS_MANUAL_CMD_CTRL)) - return int_ctrl_helper(e,cmd,i,p,f); - if(!ctrl_exists) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_CONTROL_FUNCTION); - /* For these cmd-related functions, failure is indicated - * by a -1 return value (because 0 is used as a valid - * return in some places). */ - return -1; - } - default: - break; - } - /* Anything else requires a ctrl() handler to exist. */ - if(!ctrl_exists) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_CONTROL_FUNCTION); - return 0; - } - return e->ctrl(e, cmd, i, p, f); - } - -int ENGINE_cmd_is_executable(ENGINE *e, int cmd) - { - int flags; - if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, cmd, NULL, NULL)) < 0) - { - ENGINEerr(ENGINE_F_ENGINE_CMD_IS_EXECUTABLE, - ENGINE_R_INVALID_CMD_NUMBER); - return 0; - } - if(!(flags & ENGINE_CMD_FLAG_NO_INPUT) && - !(flags & ENGINE_CMD_FLAG_NUMERIC) && - !(flags & ENGINE_CMD_FLAG_STRING)) - return 0; - return 1; - } - -int ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name, - long i, void *p, void (*f)(), int cmd_optional) - { - int num; - - if((e == NULL) || (cmd_name == NULL)) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, - ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - if((e->ctrl == NULL) || ((num = ENGINE_ctrl(e, - ENGINE_CTRL_GET_CMD_FROM_NAME, - 0, (void *)cmd_name, NULL)) <= 0)) - { - /* If the command didn't *have* to be supported, we fake - * success. This allows certain settings to be specified for - * multiple ENGINEs and only require a change of ENGINE id - * (without having to selectively apply settings). Eg. changing - * from a hardware device back to the regular software ENGINE - * without editing the config file, etc. */ - if(cmd_optional) - { - ERR_clear_error(); - return 1; - } - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD, - ENGINE_R_INVALID_CMD_NAME); - return 0; - } - /* Force the result of the control command to 0 or 1, for the reasons - * mentioned before. */ - if (ENGINE_ctrl(e, num, i, p, f)) - return 1; - return 0; - } - -int ENGINE_ctrl_cmd_string(ENGINE *e, const char *cmd_name, const char *arg, - int cmd_optional) - { - int num, flags; - long l; - char *ptr; - if((e == NULL) || (cmd_name == NULL)) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, - ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - if((e->ctrl == NULL) || ((num = ENGINE_ctrl(e, - ENGINE_CTRL_GET_CMD_FROM_NAME, - 0, (void *)cmd_name, NULL)) <= 0)) - { - /* If the command didn't *have* to be supported, we fake - * success. This allows certain settings to be specified for - * multiple ENGINEs and only require a change of ENGINE id - * (without having to selectively apply settings). Eg. changing - * from a hardware device back to the regular software ENGINE - * without editing the config file, etc. */ - if(cmd_optional) - { - ERR_clear_error(); - return 1; - } - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, - ENGINE_R_INVALID_CMD_NAME); - return 0; - } - if(!ENGINE_cmd_is_executable(e, num)) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, - ENGINE_R_CMD_NOT_EXECUTABLE); - return 0; - } - if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, num, NULL, NULL)) < 0) - { - /* Shouldn't happen, given that ENGINE_cmd_is_executable() - * returned success. */ - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, - ENGINE_R_INTERNAL_LIST_ERROR); - return 0; - } - /* If the command takes no input, there must be no input. And vice - * versa. */ - if(flags & ENGINE_CMD_FLAG_NO_INPUT) - { - if(arg != NULL) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, - ENGINE_R_COMMAND_TAKES_NO_INPUT); - return 0; - } - /* We deliberately force the result of ENGINE_ctrl() to 0 or 1 - * rather than returning it as "return data". This is to ensure - * usage of these commands is consistent across applications and - * that certain applications don't understand it one way, and - * others another. */ - if(ENGINE_ctrl(e, num, 0, (void *)arg, NULL)) - return 1; - return 0; - } - /* So, we require input */ - if(arg == NULL) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, - ENGINE_R_COMMAND_TAKES_INPUT); - return 0; - } - /* If it takes string input, that's easy */ - if(flags & ENGINE_CMD_FLAG_STRING) - { - /* Same explanation as above */ - if(ENGINE_ctrl(e, num, 0, (void *)arg, NULL)) - return 1; - return 0; - } - /* If it doesn't take numeric either, then it is unsupported for use in - * a config-setting situation, which is what this function is for. This - * should never happen though, because ENGINE_cmd_is_executable() was - * used. */ - if(!(flags & ENGINE_CMD_FLAG_NUMERIC)) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, - ENGINE_R_INTERNAL_LIST_ERROR); - return 0; - } - l = strtol(arg, &ptr, 10); - if((arg == ptr) || (*ptr != '\0')) - { - ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, - ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER); - return 0; - } - /* Force the result of the control command to 0 or 1, for the reasons - * mentioned before. */ - if(ENGINE_ctrl(e, num, l, NULL, NULL)) - return 1; - return 0; - } - -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) - { -#ifndef OPENSSL_NO_RSA - case ENGINE_TYPE_RSA: - ret = engine_def_rsa; break; -#endif -#ifndef OPENSSL_NO_DSA - case ENGINE_TYPE_DSA: - ret = engine_def_dsa; break; -#endif -#ifndef OPENSSL_NO_DH - case ENGINE_TYPE_DH: - ret = engine_def_dh; break; -#endif - 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; - default: - 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++; - engine_ref_debug(ret, 0, 1) - engine_ref_debug(ret, 1, 1) - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - return ret; - } - -#ifndef OPENSSL_NO_RSA -ENGINE *ENGINE_get_default_RSA(void) - { - return engine_get_default_type(ENGINE_TYPE_RSA); - } -#endif - -#ifndef OPENSSL_NO_DSA -ENGINE *ENGINE_get_default_DSA(void) - { - return engine_get_default_type(ENGINE_TYPE_DSA); - } -#endif - -#ifndef OPENSSL_NO_DH -ENGINE *ENGINE_get_default_DH(void) - { - return engine_get_default_type(ENGINE_TYPE_DH); - } -#endif - -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; - - /* 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(e && !ENGINE_init(e)) - { - ENGINEerr(ENGINE_F_ENGINE_SET_DEFAULT_TYPE, - ENGINE_R_INIT_FAILED); - return 0; - } - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - switch(t) - { -#ifndef OPENSSL_NO_RSA - case ENGINE_TYPE_RSA: - old = engine_def_rsa; - engine_def_rsa = e; break; -#endif -#ifndef OPENSSL_NO_DSA - case ENGINE_TYPE_DSA: - old = engine_def_dsa; - engine_def_dsa = e; break; -#endif -#ifndef OPENSSL_NO_DH - case ENGINE_TYPE_DH: - old = engine_def_dh; - engine_def_dh = e; break; -#endif - 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; - default: - 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; - } - -#ifndef OPENSSL_NO_RSA -int ENGINE_set_default_RSA(ENGINE *e) - { - return engine_set_default_type(ENGINE_TYPE_RSA, e); - } -#endif - -#ifndef OPENSSL_NO_DSA -int ENGINE_set_default_DSA(ENGINE *e) - { - return engine_set_default_type(ENGINE_TYPE_DSA, e); - } -#endif - -#ifndef OPENSSL_NO_DH -int ENGINE_set_default_DH(ENGINE *e) - { - return engine_set_default_type(ENGINE_TYPE_DH, e); - } -#endif - -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) - { -#ifndef OPENSSL_NO_RSA - if((flags & ENGINE_METHOD_RSA) && e->rsa_meth && - !ENGINE_set_default_RSA(e)) - return 0; -#endif -#ifndef OPENSSL_NO_DSA - if((flags & ENGINE_METHOD_DSA) && e->dsa_meth && - !ENGINE_set_default_DSA(e)) - return 0; -#endif -#ifndef OPENSSL_NO_DH - if((flags & ENGINE_METHOD_DH) && e->dh_meth && - !ENGINE_set_default_DH(e)) - return 0; -#endif - 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; - } - -int ENGINE_clear_defaults(void) - { - /* If the defaults haven't even been set yet, don't bother. Any kind of - * "cleanup" has a kind of implicit race-condition if another thread is - * trying to keep going, so we don't address that with locking. The - * first ENGINE_set_default_*** call will actually *create* a standard - * set of default ENGINEs (including init() and functional reference - * counts aplenty) before the rest of this function undoes them all. So - * save some hassle ... */ - if(!engine_def_flag) - return 1; - if((0 == 1) || -#ifndef OPENSSL_NO_RSA - !ENGINE_set_default_RSA(NULL) || -#endif -#ifndef OPENSSL_NO_DSA - !ENGINE_set_default_DSA(NULL) || -#endif -#ifndef OPENSSL_NO_DH - !ENGINE_set_default_DH(NULL) || -#endif - !ENGINE_set_default_RAND(NULL) || - !ENGINE_set_default_BN_mod_exp(NULL) || - !ENGINE_set_default_BN_mod_exp_crt(NULL) || - !RAND_set_rand_method(NULL)) - return 0; - return 1; - } -