| /* |
| * 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> |
| |
| #include <string.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; |
| } |
| |
| void *ex_data_dup(void *data) { |
| char* keyhandle = reinterpret_cast<char*>(data); |
| return strdup(keyhandle); |
| } |
| |
| void ex_data_free(void *data) { |
| char* keyhandle = reinterpret_cast<char*>(data); |
| free(keyhandle); |
| } |
| |
| void ex_data_clear_free(void *data) { |
| char* keyhandle = reinterpret_cast<char*>(data); |
| memset(data, '\0', strlen(keyhandle)); |
| free(keyhandle); |
| } |