STORE: Move the built-in 'file:' loader to become an engine module

From this point on, this engine must be specifically specified.

To replace the internal EMBEDDED hack with something unique for the
new module, functions to create application specific OSSL_STORE_INFO
types were added.

Furthermore, the following function had to be exported:

ossl_do_blob_header()
ossl_do_PVK_header()
asn1_d2i_read_bio()

Finally, evp_pkcs82pkey_int() has become public under a new name,
EVP_PKCS82PKEY_with_libctx()

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12587)

1 files changed, 73 insertions, 0 deletions

diff --git a/engines/e_loader_attic_err.c b/engines/e_loader_attic_err.c
new file mode 100644
index 0000000000..2bc4e854c8
--- /dev/null
+++ b/engines/e_loader_attic_err.c
@@ -0,0 +1,73 @@
+/*
+ * Generated by util/mkerr.pl DO NOT EDIT
+ * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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 <openssl/err.h>
+#include "e_loader_attic_err.h"
+
+#ifndef OPENSSL_NO_ERR
+
+static ERR_STRING_DATA ATTIC_str_reasons[] = {
+    {ERR_PACK(0, 0, ATTIC_R_AMBIGUOUS_CONTENT_TYPE), "ambiguous content type"},
+    {ERR_PACK(0, 0, ATTIC_R_BAD_PASSWORD_READ), "bad password read"},
+    {ERR_PACK(0, 0, ATTIC_R_ERROR_VERIFYING_PKCS12_MAC),
+    "error verifying pkcs12 mac"},
+    {ERR_PACK(0, 0, ATTIC_R_INIT_FAILED), "init failed"},
+    {ERR_PACK(0, 0, ATTIC_R_PASSPHRASE_CALLBACK_ERROR),
+    "passphrase callback error"},
+    {ERR_PACK(0, 0, ATTIC_R_PATH_MUST_BE_ABSOLUTE), "path must be absolute"},
+    {ERR_PACK(0, 0, ATTIC_R_SEARCH_ONLY_SUPPORTED_FOR_DIRECTORIES),
+    "search only supported for directories"},
+    {ERR_PACK(0, 0, ATTIC_R_UI_PROCESS_INTERRUPTED_OR_CANCELLED),
+    "ui process interrupted or cancelled"},
+    {ERR_PACK(0, 0, ATTIC_R_UNSUPPORTED_CONTENT_TYPE),
+    "unsupported content type"},
+    {ERR_PACK(0, 0, ATTIC_R_UNSUPPORTED_SEARCH_TYPE),
+    "unsupported search type"},
+    {ERR_PACK(0, 0, ATTIC_R_URI_AUTHORITY_UNSUPPORTED),
+    "uri authority unsupported"},
+    {0, NULL}
+};
+
+#endif
+
+static int lib_code = 0;
+static int error_loaded = 0;
+
+static int ERR_load_ATTIC_strings(void)
+{
+    if (lib_code == 0)
+        lib_code = ERR_get_next_error_library();
+
+    if (!error_loaded) {
+#ifndef OPENSSL_NO_ERR
+        ERR_load_strings(lib_code, ATTIC_str_reasons);
+#endif
+        error_loaded = 1;
+    }
+    return 1;
+}
+
+static void ERR_unload_ATTIC_strings(void)
+{
+    if (error_loaded) {
+#ifndef OPENSSL_NO_ERR
+        ERR_unload_strings(lib_code, ATTIC_str_reasons);
+#endif
+        error_loaded = 0;
+    }
+}
+
+static void ERR_ATTIC_error(int function, int reason, char *file, int line)
+{
+    if (lib_code == 0)
+        lib_code = ERR_get_next_error_library();
+    ERR_raise(lib_code, reason);
+    ERR_set_debug(file, line, NULL);
+}