Set OPENSSL_NO_ENGINE, remove engine code

ENGINE was special. It's horrible code even by the low standards of this
library. Some ports may now try to use the stubs which will fail, but
the fallout from this should be minimal. Of course there are various
language bindings that expose the ENGINE API. OpenSSL 3 disabling ENGINE
by default will likely help fixing this at some point.

ok jsing

1 files changed, 0 insertions, 365 deletions

diff --git a/src/lib/libcrypto/engine/eng_lib.c b/src/lib/libcrypto/engine/eng_lib.c
deleted file mode 100644
index 1aedcb18c6..0000000000
--- a/src/lib/libcrypto/engine/eng_lib.c
+++ /dev/null
@@ -1,365 +0,0 @@
-/* $OpenBSD: eng_lib.c,v 1.14 2018/04/14 07:18:37 tb Exp $ */
-/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
- * project 2000.
- */
-/* ====================================================================
- * 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.
- *
- * 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 <string.h>
-
-#include <openssl/err.h>
-#include <openssl/rand.h>
-
-#include "eng_int.h"
-
-/* The "new"/"free" stuff first */
-
-ENGINE *
-ENGINE_new(void)
-{
-        ENGINE *ret;
-
-        if (!OPENSSL_init_crypto(0, NULL))
-                return NULL;
-
-        ret = malloc(sizeof(ENGINE));
-        if (ret == NULL) {
-                ENGINEerror(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;
-}
-
-/* Placed here (close proximity to ENGINE_new) so that modifications to the
- * elements of the ENGINE structure are more likely to be caught and changed
- * here. */
-void
-engine_set_all_null(ENGINE *e)
-{
-        e->id = NULL;
-        e->name = NULL;
-        e->rsa_meth = NULL;
-        e->dsa_meth = NULL;
-        e->dh_meth = NULL;
-        e->rand_meth = NULL;
-        e->store_meth = NULL;
-        e->ciphers = NULL;
-        e->digests = NULL;
-        e->destroy = NULL;
-        e->init = NULL;
-        e->finish = NULL;
-        e->ctrl = NULL;
-        e->load_privkey = NULL;
-        e->load_pubkey = NULL;
-        e->cmd_defns = NULL;
-        e->flags = 0;
-}
-
-int
-engine_free_util(ENGINE *e, int locked)
-{
-        int i;
-
-        if (e == NULL)
-                return 1;
-        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;
-
-        /* Free up any dynamically allocated public key methods */
-        engine_pkey_meths_free(e);
-        engine_pkey_asn1_meths_free(e);
-        /* 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);
-        CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ENGINE, e, &e->ex_data);
-        free(e);
-        return 1;
-}
-
-int
-ENGINE_free(ENGINE *e)
-{
-        return engine_free_util(e, 1);
-}
-
-/* Cleanup stuff */
-
-/* ENGINE_cleanup() is coded such that anything that does work that will need
- * cleanup can register a "cleanup" callback here. That way we don't get linker
- * bloat by referring to all *possible* cleanups, but any linker bloat into code
- * "X" will cause X's cleanup function to end up here. */
-static STACK_OF(ENGINE_CLEANUP_ITEM) *cleanup_stack = NULL;
-static int
-int_cleanup_check(int create)
-{
-        if (cleanup_stack)
-                return 1;
-        if (!create)
-                return 0;
-        cleanup_stack = sk_ENGINE_CLEANUP_ITEM_new_null();
-        return (cleanup_stack ? 1 : 0);
-}
-
-static ENGINE_CLEANUP_ITEM *
-int_cleanup_item(ENGINE_CLEANUP_CB *cb)
-{
-        ENGINE_CLEANUP_ITEM *item = malloc(sizeof(ENGINE_CLEANUP_ITEM));
-
-        if (!item)
-                return NULL;
-        item->cb = cb;
-        return item;
-}
-
-void
-engine_cleanup_add_first(ENGINE_CLEANUP_CB *cb)
-{
-        ENGINE_CLEANUP_ITEM *item;
-
-        if (!int_cleanup_check(1))
-                return;
-        item = int_cleanup_item(cb);
-        if (item)
-                sk_ENGINE_CLEANUP_ITEM_insert(cleanup_stack, item, 0);
-}
-
-void
-engine_cleanup_add_last(ENGINE_CLEANUP_CB *cb)
-{
-        ENGINE_CLEANUP_ITEM *item;
-
-        if (!int_cleanup_check(1))
-                return;
-        item = int_cleanup_item(cb);
-        if (item)
-                sk_ENGINE_CLEANUP_ITEM_push(cleanup_stack, item);
-}
-/* The API function that performs all cleanup */
-static void
-engine_cleanup_cb_free(ENGINE_CLEANUP_ITEM *item)
-{
-        (*(item->cb))();
-        free(item);
-}
-
-void
-ENGINE_cleanup(void)
-{
-        if (int_cleanup_check(0)) {
-                sk_ENGINE_CLEANUP_ITEM_pop_free(cleanup_stack,
-                    engine_cleanup_cb_free);
-                cleanup_stack = NULL;
-        }
-        /* FIXME: This should be handled (somehow) through RAND, eg. by it
-         * registering a cleanup callback. */
-        RAND_set_rand_method(NULL);
-}
-
-/* Now the "ex_data" support */
-
-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));
-}
-
-/* Functions to get/set an ENGINE's elements - mainly to avoid exposing the
- * ENGINE structure itself. */
-
-int
-ENGINE_set_id(ENGINE *e, const char *id)
-{
-        if (id == NULL) {
-                ENGINEerror(ERR_R_PASSED_NULL_PARAMETER);
-                return 0;
-        }
-        e->id = id;
-        return 1;
-}
-
-int
-ENGINE_set_name(ENGINE *e, const char *name)
-{
-        if (name == NULL) {
-                ENGINEerror(ERR_R_PASSED_NULL_PARAMETER);
-                return 0;
-        }
-        e->name = name;
-        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_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;
-}
-
-const char *
-ENGINE_get_id(const ENGINE *e)
-{
-        return e->id;
-}
-
-const char *
-ENGINE_get_name(const ENGINE *e)
-{
-        return e->name;
-}
-
-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;
-}
-
-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;
-}
-
-/* eng_lib.o is pretty much linked into anything that touches ENGINE already, so
- * put the "static_state" hack here. */
-
-static int internal_static_hack = 0;
-
-void *
-ENGINE_get_static_state(void)
-{
-        return &internal_static_hack;
-}