Upgrade openssl from 1.1.0e to 1.1.1b, with source code. 4.0.78

trunk/3rdparty/openssl-1.1-fit/crypto/engine/eng_lib.c

@@ -0,0 +1,299 @@
+/*
+ * Copyright 2001-2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include "e_os.h"
+#include "eng_int.h"
+#include <openssl/rand.h>
+#include "internal/refcount.h"
+
+CRYPTO_RWLOCK *global_engine_lock;
+
+CRYPTO_ONCE engine_lock_init = CRYPTO_ONCE_STATIC_INIT;
+
+/* The "new"/"free" stuff first */
+
+DEFINE_RUN_ONCE(do_engine_lock_init)
+{
+    if (!OPENSSL_init_crypto(0, NULL))
+        return 0;
+    global_engine_lock = CRYPTO_THREAD_lock_new();
+    return global_engine_lock != NULL;
+}
+
+ENGINE *ENGINE_new(void)
+{
+    ENGINE *ret;
+
+    if (!RUN_ONCE(&engine_lock_init, do_engine_lock_init)
+        || (ret = OPENSSL_zalloc(sizeof(*ret))) == NULL) {
+        ENGINEerr(ENGINE_F_ENGINE_NEW, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    ret->struct_ref = 1;
+    engine_ref_debug(ret, 0, 1);
+    if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ENGINE, ret, &ret->ex_data)) {
+        OPENSSL_free(ret);
+        return NULL;
+    }
+    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->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 not_locked)
+{
+    int i;
+
+    if (e == NULL)
+        return 1;
+    if (not_locked)
+        CRYPTO_DOWN_REF(&e->struct_ref, &i, global_engine_lock);
+    else
+        i = --e->struct_ref;
+    engine_ref_debug(e, 0, -1);
+    if (i > 0)
+        return 1;
+    REF_ASSERT_ISNT(i < 0);
+    /* 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);
+    OPENSSL_free(e);
+    return 1;
+}
+
+int ENGINE_free(ENGINE *e)
+{
+    return engine_free_util(e, 1);
+}
+
+/* Cleanup stuff */
+
+/*
+ * engine_cleanup_int() 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;
+
+    if ((item = OPENSSL_malloc(sizeof(*item))) == NULL) {
+        ENGINEerr(ENGINE_F_INT_CLEANUP_ITEM, ERR_R_MALLOC_FAILURE);
+        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 != NULL) {
+        if (sk_ENGINE_CLEANUP_ITEM_push(cleanup_stack, item) <= 0)
+            OPENSSL_free(item);
+    }
+}
+
+/* The API function that performs all cleanup */
+static void engine_cleanup_cb_free(ENGINE_CLEANUP_ITEM *item)
+{
+    (*(item->cb)) ();
+    OPENSSL_free(item);
+}
+
+void engine_cleanup_int(void)
+{
+    if (int_cleanup_check(0)) {
+        sk_ENGINE_CLEANUP_ITEM_pop_free(cleanup_stack,
+                                        engine_cleanup_cb_free);
+        cleanup_stack = NULL;
+    }
+    CRYPTO_THREAD_lock_free(global_engine_lock);
+}
+
+/* Now the "ex_data" support */
+
+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) {
+        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_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;
+}