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

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

@@ -0,0 +1,209 @@
+/*
+ * Copyright 2006-2018 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/evp.h>
+#include "internal/asn1_int.h"
+
+/*
+ * If this symbol is defined then ENGINE_get_pkey_asn1_meth_engine(), the
+ * function that is used by EVP to hook in pkey_asn1_meth code and cache
+ * defaults (etc), will display brief debugging summaries to stderr with the
+ * 'nid'.
+ */
+/* #define ENGINE_PKEY_ASN1_METH_DEBUG */
+
+static ENGINE_TABLE *pkey_asn1_meth_table = NULL;
+
+void ENGINE_unregister_pkey_asn1_meths(ENGINE *e)
+{
+    engine_table_unregister(&pkey_asn1_meth_table, e);
+}
+
+static void engine_unregister_all_pkey_asn1_meths(void)
+{
+    engine_table_cleanup(&pkey_asn1_meth_table);
+}
+
+int ENGINE_register_pkey_asn1_meths(ENGINE *e)
+{
+    if (e->pkey_asn1_meths) {
+        const int *nids;
+        int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0);
+        if (num_nids > 0)
+            return engine_table_register(&pkey_asn1_meth_table,
+                                         engine_unregister_all_pkey_asn1_meths,
+                                         e, nids, num_nids, 0);
+    }
+    return 1;
+}
+
+void ENGINE_register_all_pkey_asn1_meths(void)
+{
+    ENGINE *e;
+
+    for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
+        ENGINE_register_pkey_asn1_meths(e);
+}
+
+int ENGINE_set_default_pkey_asn1_meths(ENGINE *e)
+{
+    if (e->pkey_asn1_meths) {
+        const int *nids;
+        int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0);
+        if (num_nids > 0)
+            return engine_table_register(&pkey_asn1_meth_table,
+                                         engine_unregister_all_pkey_asn1_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_asn1_meth 'nid'
+ */
+ENGINE *ENGINE_get_pkey_asn1_meth_engine(int nid)
+{
+    return engine_table_select(&pkey_asn1_meth_table, nid);
+}
+
+/*
+ * Obtains a pkey_asn1_meth implementation from an ENGINE functional
+ * reference
+ */
+const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid)
+{
+    EVP_PKEY_ASN1_METHOD *ret;
+    ENGINE_PKEY_ASN1_METHS_PTR fn = ENGINE_get_pkey_asn1_meths(e);
+    if (!fn || !fn(e, &ret, NULL, nid)) {
+        ENGINEerr(ENGINE_F_ENGINE_GET_PKEY_ASN1_METH,
+                  ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD);
+        return NULL;
+    }
+    return ret;
+}
+
+/* Gets the pkey_asn1_meth callback from an ENGINE structure */
+ENGINE_PKEY_ASN1_METHS_PTR ENGINE_get_pkey_asn1_meths(const ENGINE *e)
+{
+    return e->pkey_asn1_meths;
+}
+
+/* Sets the pkey_asn1_meth callback in an ENGINE structure */
+int ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f)
+{
+    e->pkey_asn1_meths = f;
+    return 1;
+}
+
+/*
+ * Internal function to free up EVP_PKEY_ASN1_METHOD structures before an
+ * ENGINE is destroyed
+ */
+
+void engine_pkey_asn1_meths_free(ENGINE *e)
+{
+    int i;
+    EVP_PKEY_ASN1_METHOD *pkm;
+    if (e->pkey_asn1_meths) {
+        const int *pknids;
+        int npknids;
+        npknids = e->pkey_asn1_meths(e, NULL, &pknids, 0);
+        for (i = 0; i < npknids; i++) {
+            if (e->pkey_asn1_meths(e, &pkm, NULL, pknids[i])) {
+                EVP_PKEY_asn1_free(pkm);
+            }
+        }
+    }
+}
+
+/*
+ * Find a method based on a string. This does a linear search through all
+ * implemented algorithms. This is OK in practice because only a small number
+ * of algorithms are likely to be implemented in an engine and it is not used
+ * for speed critical operations.
+ */
+
+const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth_str(ENGINE *e,
+                                                          const char *str,
+                                                          int len)
+{
+    int i, nidcount;
+    const int *nids;
+    EVP_PKEY_ASN1_METHOD *ameth;
+    if (!e->pkey_asn1_meths)
+        return NULL;
+    if (len == -1)
+        len = strlen(str);
+    nidcount = e->pkey_asn1_meths(e, NULL, &nids, 0);
+    for (i = 0; i < nidcount; i++) {
+        e->pkey_asn1_meths(e, &ameth, NULL, nids[i]);
+        if (((int)strlen(ameth->pem_str) == len)
+            && strncasecmp(ameth->pem_str, str, len) == 0)
+            return ameth;
+    }
+    return NULL;
+}
+
+typedef struct {
+    ENGINE *e;
+    const EVP_PKEY_ASN1_METHOD *ameth;
+    const char *str;
+    int len;
+} ENGINE_FIND_STR;
+
+static void look_str_cb(int nid, STACK_OF(ENGINE) *sk, ENGINE *def, void *arg)
+{
+    ENGINE_FIND_STR *lk = arg;
+    int i;
+    if (lk->ameth)
+        return;
+    for (i = 0; i < sk_ENGINE_num(sk); i++) {
+        ENGINE *e = sk_ENGINE_value(sk, i);
+        EVP_PKEY_ASN1_METHOD *ameth;
+        e->pkey_asn1_meths(e, &ameth, NULL, nid);
+        if (ameth != NULL
+                && ((int)strlen(ameth->pem_str) == lk->len)
+                && strncasecmp(ameth->pem_str, lk->str, lk->len) == 0) {
+            lk->e = e;
+            lk->ameth = ameth;
+            return;
+        }
+    }
+}
+
+const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe,
+                                                      const char *str,
+                                                      int len)
+{
+    ENGINE_FIND_STR fstr;
+    fstr.e = NULL;
+    fstr.ameth = NULL;
+    fstr.str = str;
+    fstr.len = len;
+
+    if (!RUN_ONCE(&engine_lock_init, do_engine_lock_init)) {
+        ENGINEerr(ENGINE_F_ENGINE_PKEY_ASN1_FIND_STR, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+
+    CRYPTO_THREAD_write_lock(global_engine_lock);
+    engine_table_doall(pkey_asn1_meth_table, look_str_cb, &fstr);
+    /* If found obtain a structural reference to engine */
+    if (fstr.e) {
+        fstr.e->struct_ref++;
+        engine_ref_debug(fstr.e, 0, 1);
+    }
+    *pe = fstr.e;
+    CRYPTO_THREAD_unlock(global_engine_lock);
+    return fstr.ameth;
+}