Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/src/VBox/HostDrivers/VBoxUSB/USBLib.cpp b/src/VBox/HostDrivers/VBoxUSB/USBLib.cpp
new file mode 100644
index 00000000..b3f9ec6b
--- /dev/null
+++ b/src/VBox/HostDrivers/VBoxUSB/USBLib.cpp
@@ -0,0 +1,71 @@
+/* $Id: USBLib.cpp $ */
+/** @file
+ * VirtualBox USB Library, Common Bits.
+ */
+
+/*
+ * Copyright (C) 2006-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <VBox/usblib.h>
+
+
+/**
+ * Calculate the hash of the serial string.
+ *
+ * 64bit FNV1a, chosen because it is designed to hash in to a power of two
+ * space, and is much quicker and simpler than, say, a half MD4.
+ *
+ * @returns the hash.
+ * @param   pszSerial       The serial string.
+ */
+USBLIB_DECL(uint64_t) USBLibHashSerial(const char *pszSerial)
+{
+    if (!pszSerial)
+        pszSerial = "";
+
+    const uint8_t *pu8 = (const uint8_t *)pszSerial;
+    uint64_t u64 = UINT64_C(14695981039346656037);
+    for (;;)
+    {
+        uint8_t u8 = *pu8;
+        if (!u8)
+            break;
+        u64 = (u64 * UINT64_C(1099511628211)) ^ u8;
+        pu8++;
+    }
+
+    return u64;
+}
+