-/* crypto/engine/engine_list.c */
-/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
- * project 2000.
+/*
+ * Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL project
+ * 2000.
*/
/* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ * Copyright (c) 1999-2001 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.
+ * 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
* 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.
+ */
-#include <openssl/crypto.h>
-#include "cryptlib.h"
#include "eng_int.h"
-#include <openssl/engine.h>
-/* The linked-list of pointers to engine types. engine_list_head
- * incorporates an implicit structural reference but engine_list_tail
- * does not - the latter is a computational niceity and only points
- * to something that is already pointed to by its predecessor in the
- * list (or engine_list_head itself). In the same way, the use of the
- * "prev" pointer in each ENGINE is to save excessive list iteration,
- * it doesn't correspond to an extra structural reference. Hence,
- * engine_list_head, and each non-null "next" pointer account for
- * the list itself assuming exactly 1 structural reference on each
- * list member. */
+/*
+ * The linked-list of pointers to engine types. engine_list_head incorporates
+ * an implicit structural reference but engine_list_tail does not - the
+ * latter is a computational niceity and only points to something that is
+ * already pointed to by its predecessor in the list (or engine_list_head
+ * itself). In the same way, the use of the "prev" pointer in each ENGINE is
+ * to save excessive list iteration, it doesn't correspond to an extra
+ * structural reference. Hence, engine_list_head, and each non-null "next"
+ * pointer account for the list itself assuming exactly 1 structural
+ * reference on each list member.
+ */
static ENGINE *engine_list_head = NULL;
static ENGINE *engine_list_tail = NULL;
-/* A boolean switch, used to ensure we only initialise once. This
- * is needed because the engine list may genuinely become empty during
- * use (so we can't use engine_list_head as an indicator for example. */
-static int engine_list_flag = 0;
-static int ENGINE_free_util(ENGINE *e, int locked);
-/* These static functions starting with a lower case "engine_" always
- * take place when CRYPTO_LOCK_ENGINE has been locked up. */
-static int engine_list_add(ENGINE *e)
- {
- int conflict = 0;
- ENGINE *iterator = NULL;
+/*
+ * This cleanup function is only needed internally. If it should be called,
+ * we register it with the "engine_cleanup_int()" stack to be called during
+ * cleanup.
+ */
- if(e == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_LIST_ADD,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- iterator = engine_list_head;
- while(iterator && !conflict)
- {
- conflict = (strcmp(iterator->id, e->id) == 0);
- iterator = iterator->next;
- }
- if(conflict)
- {
- ENGINEerr(ENGINE_F_ENGINE_LIST_ADD,
- ENGINE_R_CONFLICTING_ENGINE_ID);
- return 0;
- }
- if(engine_list_head == NULL)
- {
- /* We are adding to an empty list. */
- if(engine_list_tail)
- {
- ENGINEerr(ENGINE_F_ENGINE_LIST_ADD,
- ENGINE_R_INTERNAL_LIST_ERROR);
- return 0;
- }
- engine_list_head = e;
- e->prev = NULL;
- }
- else
- {
- /* We are adding to the tail of an existing list. */
- if((engine_list_tail == NULL) ||
- (engine_list_tail->next != NULL))
- {
- ENGINEerr(ENGINE_F_ENGINE_LIST_ADD,
- ENGINE_R_INTERNAL_LIST_ERROR);
- return 0;
- }
- engine_list_tail->next = e;
- e->prev = engine_list_tail;
- }
- /* Having the engine in the list assumes a structural
- * reference. */
- e->struct_ref++;
- engine_ref_debug(e, 0, 1)
- /* However it came to be, e is the last item in the list. */
- engine_list_tail = e;
- e->next = NULL;
- return 1;
- }
+static void engine_list_cleanup(void)
+{
+ ENGINE *iterator = engine_list_head;
-static int engine_list_remove(ENGINE *e)
- {
- ENGINE *iterator;
+ while (iterator != NULL) {
+ ENGINE_remove(iterator);
+ iterator = engine_list_head;
+ }
+ return;
+}
- if(e == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_LIST_REMOVE,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- /* We need to check that e is in our linked list! */
- iterator = engine_list_head;
- while(iterator && (iterator != e))
- iterator = iterator->next;
- if(iterator == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_LIST_REMOVE,
- ENGINE_R_ENGINE_IS_NOT_IN_LIST);
- return 0;
- }
- /* un-link e from the chain. */
- if(e->next)
- e->next->prev = e->prev;
- if(e->prev)
- e->prev->next = e->next;
- /* Correct our head/tail if necessary. */
- if(engine_list_head == e)
- engine_list_head = e->next;
- if(engine_list_tail == e)
- engine_list_tail = e->prev;
- ENGINE_free_util(e, 0);
- return 1;
- }
+/*
+ * These static functions starting with a lower case "engine_" always take
+ * place when global_engine_lock has been locked up.
+ */
+static int engine_list_add(ENGINE *e)
+{
+ int conflict = 0;
+ ENGINE *iterator = NULL;
+
+ if (e == NULL) {
+ ENGINEerr(ENGINE_F_ENGINE_LIST_ADD, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ iterator = engine_list_head;
+ while (iterator && !conflict) {
+ conflict = (strcmp(iterator->id, e->id) == 0);
+ iterator = iterator->next;
+ }
+ if (conflict) {
+ ENGINEerr(ENGINE_F_ENGINE_LIST_ADD, ENGINE_R_CONFLICTING_ENGINE_ID);
+ return 0;
+ }
+ if (engine_list_head == NULL) {
+ /* We are adding to an empty list. */
+ if (engine_list_tail) {
+ ENGINEerr(ENGINE_F_ENGINE_LIST_ADD, ENGINE_R_INTERNAL_LIST_ERROR);
+ return 0;
+ }
+ engine_list_head = e;
+ e->prev = NULL;
+ /*
+ * The first time the list allocates, we should register the cleanup.
+ */
+ engine_cleanup_add_last(engine_list_cleanup);
+ } else {
+ /* We are adding to the tail of an existing list. */
+ if ((engine_list_tail == NULL) || (engine_list_tail->next != NULL)) {
+ ENGINEerr(ENGINE_F_ENGINE_LIST_ADD, ENGINE_R_INTERNAL_LIST_ERROR);
+ return 0;
+ }
+ engine_list_tail->next = e;
+ e->prev = engine_list_tail;
+ }
+ /*
+ * Having the engine in the list assumes a structural reference.
+ */
+ e->struct_ref++;
+ engine_ref_debug(e, 0, 1);
+ /* However it came to be, e is the last item in the list. */
+ engine_list_tail = e;
+ e->next = NULL;
+ return 1;
+}
-/* This check always takes place with CRYPTO_LOCK_ENGINE locked up
- * so we're synchronised, but we can't call anything that tries to
- * lock it again! :-) NB: For convenience (and code-clarity) we
- * don't output errors for failures of the engine_list_add function
- * as it will generate errors itself. */
-static int engine_internal_check(void)
- {
- int toret = 1;
- ENGINE *def_engine1, *def_engine2;
- if(engine_list_flag)
- return 1;
- /* This is our first time up, we need to populate the list
- * with our statically compiled-in engines. */
- def_engine1 = ENGINE_openssl();
- def_engine2 = ENGINE_dynamic();
- if(!engine_list_add(def_engine1) ||
- !engine_list_add(def_engine2))
- toret = 0;
- else
- engine_list_flag = 1;
- ENGINE_free_util(def_engine1, 0);
- ENGINE_free_util(def_engine2, 0);
- return 1;
- }
+static int engine_list_remove(ENGINE *e)
+{
+ ENGINE *iterator;
+
+ if (e == NULL) {
+ ENGINEerr(ENGINE_F_ENGINE_LIST_REMOVE, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ /* We need to check that e is in our linked list! */
+ iterator = engine_list_head;
+ while (iterator && (iterator != e))
+ iterator = iterator->next;
+ if (iterator == NULL) {
+ ENGINEerr(ENGINE_F_ENGINE_LIST_REMOVE,
+ ENGINE_R_ENGINE_IS_NOT_IN_LIST);
+ return 0;
+ }
+ /* un-link e from the chain. */
+ if (e->next)
+ e->next->prev = e->prev;
+ if (e->prev)
+ e->prev->next = e->next;
+ /* Correct our head/tail if necessary. */
+ if (engine_list_head == e)
+ engine_list_head = e->next;
+ if (engine_list_tail == e)
+ engine_list_tail = e->prev;
+ engine_free_util(e, 0);
+ return 1;
+}
/* Get the first/last "ENGINE" type available. */
ENGINE *ENGINE_get_first(void)
- {
- ENGINE *ret = NULL;
+{
+ ENGINE *ret;
+
+ CRYPTO_THREAD_run_once(&engine_lock_init, do_engine_lock_init);
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ ret = engine_list_head;
+ if (ret) {
+ ret->struct_ref++;
+ engine_ref_debug(ret, 0, 1);
+ }
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ return ret;
+}
- CRYPTO_r_lock(CRYPTO_LOCK_ENGINE);
- if(engine_internal_check())
- {
- ret = engine_list_head;
- if(ret)
- {
- ret->struct_ref++;
- engine_ref_debug(ret, 0, 1)
- }
- }
- CRYPTO_r_unlock(CRYPTO_LOCK_ENGINE);
- return ret;
- }
ENGINE *ENGINE_get_last(void)
- {
- ENGINE *ret = NULL;
-
- CRYPTO_r_lock(CRYPTO_LOCK_ENGINE);
- if(engine_internal_check())
- {
- ret = engine_list_tail;
- if(ret)
- {
- ret->struct_ref++;
- engine_ref_debug(ret, 0, 1)
- }
- }
- CRYPTO_r_unlock(CRYPTO_LOCK_ENGINE);
- return ret;
- }
+{
+ ENGINE *ret;
+
+ CRYPTO_THREAD_run_once(&engine_lock_init, do_engine_lock_init);
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ ret = engine_list_tail;
+ if (ret) {
+ ret->struct_ref++;
+ engine_ref_debug(ret, 0, 1);
+ }
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ return ret;
+}
/* Iterate to the next/previous "ENGINE" type (NULL = end of the list). */
ENGINE *ENGINE_get_next(ENGINE *e)
- {
- ENGINE *ret = NULL;
- if(e == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_GET_NEXT,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- CRYPTO_r_lock(CRYPTO_LOCK_ENGINE);
- ret = e->next;
- if(ret)
- {
- /* Return a valid structural refernce to the next ENGINE */
- ret->struct_ref++;
- engine_ref_debug(ret, 0, 1)
- }
- CRYPTO_r_unlock(CRYPTO_LOCK_ENGINE);
- /* Release the structural reference to the previous ENGINE */
- ENGINE_free(e);
- return ret;
- }
+{
+ ENGINE *ret = NULL;
+ if (e == NULL) {
+ ENGINEerr(ENGINE_F_ENGINE_GET_NEXT, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ ret = e->next;
+ if (ret) {
+ /* Return a valid structural reference to the next ENGINE */
+ ret->struct_ref++;
+ engine_ref_debug(ret, 0, 1);
+ }
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ /* Release the structural reference to the previous ENGINE */
+ ENGINE_free(e);
+ return ret;
+}
+
ENGINE *ENGINE_get_prev(ENGINE *e)
- {
- ENGINE *ret = NULL;
- if(e == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_GET_PREV,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- CRYPTO_r_lock(CRYPTO_LOCK_ENGINE);
- ret = e->prev;
- if(ret)
- {
- /* Return a valid structural reference to the next ENGINE */
- ret->struct_ref++;
- engine_ref_debug(ret, 0, 1)
- }
- CRYPTO_r_unlock(CRYPTO_LOCK_ENGINE);
- /* Release the structural reference to the previous ENGINE */
- ENGINE_free(e);
- return ret;
- }
+{
+ ENGINE *ret = NULL;
+ if (e == NULL) {
+ ENGINEerr(ENGINE_F_ENGINE_GET_PREV, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ ret = e->prev;
+ if (ret) {
+ /* Return a valid structural reference to the next ENGINE */
+ ret->struct_ref++;
+ engine_ref_debug(ret, 0, 1);
+ }
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ /* Release the structural reference to the previous ENGINE */
+ ENGINE_free(e);
+ return ret;
+}
/* Add another "ENGINE" type into the list. */
int ENGINE_add(ENGINE *e)
- {
- int to_return = 1;
- if(e == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_ADD,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- if((e->id == NULL) || (e->name == NULL))
- {
- ENGINEerr(ENGINE_F_ENGINE_ADD,
- ENGINE_R_ID_OR_NAME_MISSING);
- }
- CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- if(!engine_internal_check() || !engine_list_add(e))
- {
- ENGINEerr(ENGINE_F_ENGINE_ADD,
- ENGINE_R_INTERNAL_LIST_ERROR);
- to_return = 0;
- }
- CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
- return to_return;
- }
+{
+ int to_return = 1;
+ if (e == NULL) {
+ ENGINEerr(ENGINE_F_ENGINE_ADD, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ if ((e->id == NULL) || (e->name == NULL)) {
+ ENGINEerr(ENGINE_F_ENGINE_ADD, ENGINE_R_ID_OR_NAME_MISSING);
+ return 0;
+ }
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ if (!engine_list_add(e)) {
+ ENGINEerr(ENGINE_F_ENGINE_ADD, ENGINE_R_INTERNAL_LIST_ERROR);
+ to_return = 0;
+ }
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ return to_return;
+}
/* Remove an existing "ENGINE" type from the array. */
int ENGINE_remove(ENGINE *e)
- {
- int to_return = 1;
- if(e == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_REMOVE,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
- if(!engine_internal_check() || !engine_list_remove(e))
- {
- ENGINEerr(ENGINE_F_ENGINE_REMOVE,
- ENGINE_R_INTERNAL_LIST_ERROR);
- to_return = 0;
- }
- CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
- return to_return;
- }
-
-ENGINE *ENGINE_by_id(const char *id)
- {
- ENGINE *iterator = NULL, *cp = NULL;
- if(id == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_BY_ID,
- ERR_R_PASSED_NULL_PARAMETER);
- return NULL;
- }
- CRYPTO_r_lock(CRYPTO_LOCK_ENGINE);
- if(!engine_internal_check())
- ENGINEerr(ENGINE_F_ENGINE_BY_ID,
- ENGINE_R_INTERNAL_LIST_ERROR);
- else
- {
- iterator = engine_list_head;
- while(iterator && (strcmp(id, iterator->id) != 0))
- iterator = iterator->next;
- if(iterator)
- {
- /* We need to return a structural reference. If this is
- * a "dynamic" ENGINE type, make a duplicate - otherwise
- * increment the existing ENGINE's reference count. */
- if(iterator->flags & ENGINE_FLAGS_BY_ID_COPY)
- {
- cp = ENGINE_new();
- if(!cp)
- iterator = NULL;
- else
- {
- ENGINE_cpy(cp, iterator);
- iterator = cp;
- }
- }
- else
- {
- iterator->struct_ref++;
- engine_ref_debug(iterator, 0, 1)
- }
- }
- }
- CRYPTO_r_unlock(CRYPTO_LOCK_ENGINE);
- if(iterator == NULL)
- ENGINEerr(ENGINE_F_ENGINE_BY_ID,
- ENGINE_R_NO_SUCH_ENGINE);
- return iterator;
- }
-
-ENGINE *ENGINE_new(void)
- {
- ENGINE *ret;
-
- ret = (ENGINE *)OPENSSL_malloc(sizeof(ENGINE));
- if(ret == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_NEW, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- memset(ret, 0, sizeof(ENGINE));
- ret->struct_ref = 1;
- engine_ref_debug(ret, 0, 1)
- CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ENGINE, ret, &ret->ex_data);
- return ret;
- }
-
-static int ENGINE_free_util(ENGINE *e, int locked)
- {
- int i;
-
- if(e == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_FREE,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- if(locked)
- i = CRYPTO_add(&e->struct_ref,-1,CRYPTO_LOCK_ENGINE);
- else
- i = --e->struct_ref;
- engine_ref_debug(e, 0, -1)
- if (i > 0) return 1;
-#ifdef REF_CHECK
- if (i < 0)
- {
- fprintf(stderr,"ENGINE_free, bad structural reference count\n");
- abort();
- }
-#endif
- /* Give the ENGINE a chance to do any structural cleanup corresponding
- * to allocation it did in its constructor (eg. unload error strings) */
- if(e->destroy)
- e->destroy(e);
- sk_ENGINE_EVP_CIPHER_pop_free(e->ciphers,ENGINE_free_engine_cipher);
- CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ENGINE, e, &e->ex_data);
- OPENSSL_free(e);
- return 1;
- }
-
-int ENGINE_free(ENGINE *e)
- {
- return ENGINE_free_util(e, 1);
- }
-
-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)
- {
- return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ENGINE, argl, argp,
- new_func, dup_func, free_func);
- }
-
-int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg)
- {
- return(CRYPTO_set_ex_data(&e->ex_data, idx, arg));
- }
-
-void *ENGINE_get_ex_data(const ENGINE *e, int idx)
- {
- return(CRYPTO_get_ex_data(&e->ex_data, idx));
- }
-
-void ENGINE_cleanup(void)
- {
- ENGINE *iterator = engine_list_head;
-
- while(iterator != NULL)
- {
- ENGINE_remove(iterator);
- iterator = engine_list_head;
- }
- engine_list_flag = 0;
- /* Also unset any "default" ENGINEs that may have been set up (a default
- * constitutes a functional reference on an ENGINE and there's one for
- * each algorithm). */
- ENGINE_clear_defaults();
- return;
- }
-
-int ENGINE_set_id(ENGINE *e, const char *id)
- {
- if(id == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_SET_ID,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- e->id = id;
- return 1;
- }
-
-int ENGINE_set_name(ENGINE *e, const char *name)
- {
- if(name == NULL)
- {
- ENGINEerr(ENGINE_F_ENGINE_SET_NAME,
- ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- e->name = name;
- return 1;
- }
-
-int ENGINE_set_RSA(ENGINE *e, const RSA_METHOD *rsa_meth)
- {
+{
+ int to_return = 1;
+ if (e == NULL) {
+ ENGINEerr(ENGINE_F_ENGINE_REMOVE, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ if (!engine_list_remove(e)) {
+ ENGINEerr(ENGINE_F_ENGINE_REMOVE, ENGINE_R_INTERNAL_LIST_ERROR);
+ to_return = 0;
+ }
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ return to_return;
+}
+
+static void engine_cpy(ENGINE *dest, const ENGINE *src)
+{
+ dest->id = src->id;
+ dest->name = src->name;
#ifndef OPENSSL_NO_RSA
- e->rsa_meth = rsa_meth;
- return 1;
-#else
- return 0;
+ dest->rsa_meth = src->rsa_meth;
#endif
- }
-
-int ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth)
- {
#ifndef OPENSSL_NO_DSA
- e->dsa_meth = dsa_meth;
- return 1;
-#else
- return 0;
+ dest->dsa_meth = src->dsa_meth;
#endif
- }
-
-int ENGINE_set_DH(ENGINE *e, const DH_METHOD *dh_meth)
- {
#ifndef OPENSSL_NO_DH
- e->dh_meth = dh_meth;
- return 1;
-#else
- return 0;
-#endif
- }
-
-int ENGINE_set_RAND(ENGINE *e, const RAND_METHOD *rand_meth)
- {
- e->rand_meth = rand_meth;
- return 1;
- }
-
-int ENGINE_set_BN_mod_exp(ENGINE *e, BN_MOD_EXP bn_mod_exp)
- {
- e->bn_mod_exp = bn_mod_exp;
- return 1;
- }
-
-int ENGINE_set_BN_mod_exp_crt(ENGINE *e, BN_MOD_EXP_CRT bn_mod_exp_crt)
- {
- e->bn_mod_exp_crt = bn_mod_exp_crt;
- return 1;
- }
-
-int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f)
- {
- e->destroy = destroy_f;
- return 1;
- }
-
-int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f)
- {
- e->init = init_f;
- return 1;
- }
-
-int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f)
- {
- e->finish = finish_f;
- return 1;
- }
-
-int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f)
- {
- e->ctrl = ctrl_f;
- return 1;
- }
-
-int ENGINE_set_load_privkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpriv_f)
- {
- e->load_privkey = loadpriv_f;
- return 1;
- }
-
-int ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f)
- {
- e->load_pubkey = loadpub_f;
- return 1;
- }
-
-int ENGINE_set_flags(ENGINE *e, int flags)
- {
- e->flags = flags;
- return 1;
- }
-
-int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns)
- {
- e->cmd_defns = defns;
- return 1;
- }
-
-int ENGINE_cpy(ENGINE *dest, const ENGINE *src)
- {
- if(ENGINE_set_id(dest, ENGINE_get_id(src)) &&
- ENGINE_set_name(dest, ENGINE_get_name(src)) &&
-#ifndef OPENSSL_NO_RSA
- ENGINE_set_RSA(dest, ENGINE_get_RSA(src)) &&
+ dest->dh_meth = src->dh_meth;
#endif
-#ifndef OPENSSL_NO_RSA
- ENGINE_set_DSA(dest, ENGINE_get_DSA(src)) &&
-#endif
-#ifndef OPENSSL_NO_RSA
- ENGINE_set_DH(dest, ENGINE_get_DH(src)) &&
+#ifndef OPENSSL_NO_EC
+ dest->ec_meth = src->ec_meth;
#endif
- ENGINE_set_RAND(dest, ENGINE_get_RAND(src)) &&
- ENGINE_set_BN_mod_exp(dest,
- ENGINE_get_BN_mod_exp(src)) &&
- ENGINE_set_BN_mod_exp_crt(dest,
- ENGINE_get_BN_mod_exp_crt(src)) &&
- ENGINE_set_init_function(dest,
- ENGINE_get_init_function(src)) &&
- ENGINE_set_finish_function(dest,
- ENGINE_get_finish_function(src)) &&
- ENGINE_set_ctrl_function(dest,
- ENGINE_get_ctrl_function(src)) &&
- ENGINE_set_load_privkey_function(dest,
- ENGINE_get_load_privkey_function(src)) &&
- ENGINE_set_load_pubkey_function(dest,
- ENGINE_get_load_pubkey_function(src)) &&
- ENGINE_set_flags(dest, ENGINE_get_flags(src)) &&
- ENGINE_set_cmd_defns(dest, ENGINE_get_cmd_defns(src)))
- return 1;
- return 0;
- }
-
-const char *ENGINE_get_id(const ENGINE *e)
- {
- return e->id;
- }
+ dest->rand_meth = src->rand_meth;
+ dest->ciphers = src->ciphers;
+ dest->digests = src->digests;
+ dest->pkey_meths = src->pkey_meths;
+ dest->destroy = src->destroy;
+ dest->init = src->init;
+ dest->finish = src->finish;
+ dest->ctrl = src->ctrl;
+ dest->load_privkey = src->load_privkey;
+ dest->load_pubkey = src->load_pubkey;
+ dest->cmd_defns = src->cmd_defns;
+ dest->flags = src->flags;
+}
-const char *ENGINE_get_name(const ENGINE *e)
- {
- return e->name;
- }
-
-const RSA_METHOD *ENGINE_get_RSA(const ENGINE *e)
- {
- return e->rsa_meth;
- }
-
-const DSA_METHOD *ENGINE_get_DSA(const ENGINE *e)
- {
- return e->dsa_meth;
- }
-
-const DH_METHOD *ENGINE_get_DH(const ENGINE *e)
- {
- return e->dh_meth;
- }
-
-const RAND_METHOD *ENGINE_get_RAND(const ENGINE *e)
- {
- return e->rand_meth;
- }
-
-BN_MOD_EXP ENGINE_get_BN_mod_exp(const ENGINE *e)
- {
- return e->bn_mod_exp;
- }
-
-BN_MOD_EXP_CRT ENGINE_get_BN_mod_exp_crt(const ENGINE *e)
- {
- return e->bn_mod_exp_crt;
- }
-
-ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e)
- {
- return e->destroy;
- }
-
-ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e)
- {
- return e->init;
- }
-
-ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e)
- {
- return e->finish;
- }
-
-ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e)
- {
- return e->ctrl;
- }
-
-ENGINE_LOAD_KEY_PTR ENGINE_get_load_privkey_function(const ENGINE *e)
- {
- return e->load_privkey;
- }
-
-ENGINE_LOAD_KEY_PTR ENGINE_get_load_pubkey_function(const ENGINE *e)
- {
- return e->load_pubkey;
- }
-
-int ENGINE_get_flags(const ENGINE *e)
- {
- return e->flags;
- }
-
-const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e)
- {
- return e->cmd_defns;
- }
+ENGINE *ENGINE_by_id(const char *id)
+{
+ ENGINE *iterator;
+ char *load_dir = NULL;
+ if (id == NULL) {
+ ENGINEerr(ENGINE_F_ENGINE_BY_ID, ERR_R_PASSED_NULL_PARAMETER);
+ return NULL;
+ }
+ CRYPTO_THREAD_run_once(&engine_lock_init, do_engine_lock_init);
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ iterator = engine_list_head;
+ while (iterator && (strcmp(id, iterator->id) != 0))
+ iterator = iterator->next;
+ if (iterator != NULL) {
+ /*
+ * We need to return a structural reference. If this is an ENGINE
+ * type that returns copies, make a duplicate - otherwise increment
+ * the existing ENGINE's reference count.
+ */
+ if (iterator->flags & ENGINE_FLAGS_BY_ID_COPY) {
+ ENGINE *cp = ENGINE_new();
+ if (cp == NULL)
+ iterator = NULL;
+ else {
+ engine_cpy(cp, iterator);
+ iterator = cp;
+ }
+ } else {
+ iterator->struct_ref++;
+ engine_ref_debug(iterator, 0, 1);
+ }
+ }
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ if (iterator != NULL)
+ return iterator;
+ /*
+ * Prevent infinite recursion if we're looking for the dynamic engine.
+ */
+ if (strcmp(id, "dynamic")) {
+ if ((load_dir = getenv("OPENSSL_ENGINES")) == 0)
+ load_dir = ENGINESDIR;
+ iterator = ENGINE_by_id("dynamic");
+ if (!iterator || !ENGINE_ctrl_cmd_string(iterator, "ID", id, 0) ||
+ !ENGINE_ctrl_cmd_string(iterator, "DIR_LOAD", "2", 0) ||
+ !ENGINE_ctrl_cmd_string(iterator, "DIR_ADD",
+ load_dir, 0) ||
+ !ENGINE_ctrl_cmd_string(iterator, "LIST_ADD", "1", 0) ||
+ !ENGINE_ctrl_cmd_string(iterator, "LOAD", NULL, 0))
+ goto notfound;
+ return iterator;
+ }
+ notfound:
+ ENGINE_free(iterator);
+ ENGINEerr(ENGINE_F_ENGINE_BY_ID, ENGINE_R_NO_SUCH_ENGINE);
+ ERR_add_error_data(2, "id=", id);
+ return NULL;
+ /* EEK! Experimental code ends */
+}
+
+int ENGINE_up_ref(ENGINE *e)
+{
+ int i;
+ if (e == NULL) {
+ ENGINEerr(ENGINE_F_ENGINE_UP_REF, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ CRYPTO_atomic_add(&e->struct_ref, 1, &i, global_engine_lock);
+ return 1;
+}
projects / openssl.git / blobdiff