1 files changed, 105 insertions, 0 deletions
diff --git a/src/include/openssl/engine.h b/src/include/openssl/engine.h
new file mode 100644
index 0000000..4a4f37d
--- /dev/null
+++ b/src/include/openssl/engine.h
@@ -0,0 +1,105 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#ifndef OPENSSL_HEADER_ENGINE_H
+#define OPENSSL_HEADER_ENGINE_H
+
+#include <openssl/base.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+/* Engines are collections of methods. Methods are tables of function pointers,
+ * defined for certain algorithms, that allow operations on those algorithms to
+ * be overridden via a callback. This can be used, for example, to implement an
+ * RSA* that forwards operations to a hardware module.
+ *
+ * Methods are reference counted but |ENGINE|s are not. When creating a method,
+ * you should zero the whole structure and fill in the function pointers that
+ * you wish before setting it on an |ENGINE|. Any functions pointers that
+ * are NULL indicate that the default behaviour should be used. */
+
+
+/* Allocation and destruction. */
+
+/* ENGINE_new returns an empty ENGINE that uses the default method for all
+ * algorithms. */
+OPENSSL_EXPORT ENGINE *ENGINE_new(void);
+
+/* ENGINE_free decrements the reference counts for all methods linked from
+ * |engine| and frees |engine| itself. */
+OPENSSL_EXPORT void ENGINE_free(ENGINE *engine);
+
+
+/* Method accessors.
+ *
+ * Method accessors take a method pointer and the size of the structure. The
+ * size allows for ABI compatibility in the case that the method structure is
+ * extended with extra elements at the end. Methods are always copied by the
+ * set functions.
+ *
+ * Set functions return one on success and zero on allocation failure. */
+
+OPENSSL_EXPORT int ENGINE_set_DH_method(ENGINE *engine, const DH_METHOD *method,
+                                        size_t method_size);
+OPENSSL_EXPORT DH_METHOD *ENGINE_get_DH_method(const ENGINE *engine);
+
+OPENSSL_EXPORT int ENGINE_set_DSA_method(ENGINE *engine,
+                                         const DSA_METHOD *method,
+                                         size_t method_size);
+OPENSSL_EXPORT DSA_METHOD *ENGINE_get_DSA_method(const ENGINE *engine);
+
+OPENSSL_EXPORT int ENGINE_set_RSA_method(ENGINE *engine,
+                                         const RSA_METHOD *method,
+                                         size_t method_size);
+OPENSSL_EXPORT RSA_METHOD *ENGINE_get_RSA_method(const ENGINE *engine);
+
+OPENSSL_EXPORT int ENGINE_set_ECDSA_method(ENGINE *engine,
+                                           const ECDSA_METHOD *method,
+                                           size_t method_size);
+OPENSSL_EXPORT ECDSA_METHOD *ENGINE_get_ECDSA_method(const ENGINE *engine);
+
+
+/* Generic method functions.
+ *
+ * These functions take a void* type but actually operate on all method
+ * structures. */
+
+/* METHOD_ref increments the reference count of |method|. */
+OPENSSL_EXPORT void METHOD_ref(void *method);
+
+/* METHOD_unref decrements the reference count of |method| and frees it if the
+ * reference count drops to zero. */
+OPENSSL_EXPORT void METHOD_unref(void *method);
+
+
+/* Private functions. */
+
+/* openssl_method_common_st contains the common part of all method structures.
+ * This must be the first member of all method structures. */
+struct openssl_method_common_st {
+  int references;
+  char is_static;
+};
+
+
+#if defined(__cplusplus)
+}  /* extern C */
+#endif
+
+#define ENGINE_R_OPERATION_NOT_SUPPORTED 100
+
+#endif  /* OPENSSL_HEADER_ENGINE_H */