Split up main engine from methods
We need to add more methods to the keystore engine, so split out RSA so
it doesn't become too unwieldy.
This doesn't affect the size of the symbol table since the default
visibility for this module is "hidden."
Change-Id: I806553a8d1a01ff0ffd7b67054932ddf783bb502
diff --git a/keystore-engine/keyhandle.cpp b/keystore-engine/keyhandle.cpp
new file mode 100644
index 0000000..786934b
--- /dev/null
+++ b/keystore-engine/keyhandle.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2012 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <openssl/engine.h>
+
+/**
+ * Makes sure the ex_data for the keyhandle is initially set to NULL.
+ */
+int keyhandle_new(void*, void*, CRYPTO_EX_DATA* ad, int idx, long, void*) {
+ return CRYPTO_set_ex_data(ad, idx, NULL);
+}
+
+/**
+ * Frees a previously allocated keyhandle stored in ex_data.
+ */
+void keyhandle_free(void *, void *ptr, CRYPTO_EX_DATA*, int, long, void*) {
+ char* keyhandle = reinterpret_cast<char*>(ptr);
+ if (keyhandle != NULL) {
+ free(keyhandle);
+ }
+}
+
+/**
+ * Duplicates a keyhandle stored in ex_data in case we copy a key.
+ */
+int keyhandle_dup(CRYPTO_EX_DATA* to, CRYPTO_EX_DATA*, void *ptrRef, int idx, long, void *) {
+ // This appears to be a bug in OpenSSL.
+ void** ptr = reinterpret_cast<void**>(ptrRef);
+ char* keyhandle = reinterpret_cast<char*>(*ptr);
+ if (keyhandle != NULL) {
+ char* keyhandle_copy = strdup(keyhandle);
+ *ptr = keyhandle_copy;
+
+ // Call this in case OpenSSL is fixed in the future.
+ (void) CRYPTO_set_ex_data(to, idx, keyhandle_copy);
+ }
+ return 1;
+}