From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>
Date: Fri, 30 Apr 2021 00:33:56 +0200
Subject: initial/final commit

---
 openssl-1.1.0h/crypto/engine/tb_pkmeth.c | 114 +++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 openssl-1.1.0h/crypto/engine/tb_pkmeth.c

(limited to 'openssl-1.1.0h/crypto/engine/tb_pkmeth.c')

diff --git a/openssl-1.1.0h/crypto/engine/tb_pkmeth.c b/openssl-1.1.0h/crypto/engine/tb_pkmeth.c
new file mode 100644
index 0000000..2e82d85
--- /dev/null
+++ b/openssl-1.1.0h/crypto/engine/tb_pkmeth.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2006-2016 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 "eng_int.h"
+#include <openssl/evp.h>
+
+static ENGINE_TABLE *pkey_meth_table = NULL;
+
+void ENGINE_unregister_pkey_meths(ENGINE *e)
+{
+    engine_table_unregister(&pkey_meth_table, e);
+}
+
+static void engine_unregister_all_pkey_meths(void)
+{
+    engine_table_cleanup(&pkey_meth_table);
+}
+
+int ENGINE_register_pkey_meths(ENGINE *e)
+{
+    if (e->pkey_meths) {
+        const int *nids;
+        int num_nids = e->pkey_meths(e, NULL, &nids, 0);
+        if (num_nids > 0)
+            return engine_table_register(&pkey_meth_table,
+                                         engine_unregister_all_pkey_meths, e,
+                                         nids, num_nids, 0);
+    }
+    return 1;
+}
+
+void ENGINE_register_all_pkey_meths()
+{
+    ENGINE *e;
+
+    for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
+        ENGINE_register_pkey_meths(e);
+}
+
+int ENGINE_set_default_pkey_meths(ENGINE *e)
+{
+    if (e->pkey_meths) {
+        const int *nids;
+        int num_nids = e->pkey_meths(e, NULL, &nids, 0);
+        if (num_nids > 0)
+            return engine_table_register(&pkey_meth_table,
+                                         engine_unregister_all_pkey_meths, e,
+                                         nids, num_nids, 1);
+    }
+    return 1;
+}
+
+/*
+ * Exposed API function to get a functional reference from the implementation
+ * table (ie. try to get a functional reference from the tabled structural
+ * references) for a given pkey_meth 'nid'
+ */
+ENGINE *ENGINE_get_pkey_meth_engine(int nid)
+{
+    return engine_table_select(&pkey_meth_table, nid);
+}
+
+/* Obtains a pkey_meth implementation from an ENGINE functional reference */
+const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid)
+{
+    EVP_PKEY_METHOD *ret;
+    ENGINE_PKEY_METHS_PTR fn = ENGINE_get_pkey_meths(e);
+    if (!fn || !fn(e, &ret, NULL, nid)) {
+        ENGINEerr(ENGINE_F_ENGINE_GET_PKEY_METH,
+                  ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD);
+        return NULL;
+    }
+    return ret;
+}
+
+/* Gets the pkey_meth callback from an ENGINE structure */
+ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e)
+{
+    return e->pkey_meths;
+}
+
+/* Sets the pkey_meth callback in an ENGINE structure */
+int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f)
+{
+    e->pkey_meths = f;
+    return 1;
+}
+
+/*
+ * Internal function to free up EVP_PKEY_METHOD structures before an ENGINE
+ * is destroyed
+ */
+
+void engine_pkey_meths_free(ENGINE *e)
+{
+    int i;
+    EVP_PKEY_METHOD *pkm;
+    if (e->pkey_meths) {
+        const int *pknids;
+        int npknids;
+        npknids = e->pkey_meths(e, NULL, &pknids, 0);
+        for (i = 0; i < npknids; i++) {
+            if (e->pkey_meths(e, &pkm, NULL, pknids[i])) {
+                EVP_PKEY_meth_free(pkm);
+            }
+        }
+    }
+}
-- 
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