Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

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

1 files changed, 196 insertions, 0 deletions

diff --git a/include/VBox/usblib.h b/include/VBox/usblib.h
new file mode 100644
index 00000000..13fc690e
--- /dev/null
+++ b/include/VBox/usblib.h
@@ -0,0 +1,196 @@
+/** @file
+ * USBLib - Library for wrapping up the VBoxUSB functionality. (DEV,HDrv,Main)
+ */
+
+/*
+ * Copyright (C) 2006-2022 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
+ */
+
+#ifndef VBOX_INCLUDED_usblib_h
+#define VBOX_INCLUDED_usblib_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <VBox/cdefs.h>
+#include <VBox/types.h>
+#include <VBox/usb.h>
+#include <VBox/usbfilter.h>
+#include <iprt/ctype.h>
+#include <iprt/string.h>
+
+#ifdef RT_OS_WINDOWS
+# include <VBox/usblib-win.h>
+#endif
+#ifdef RT_OS_SOLARIS
+# include <VBox/usblib-solaris.h>
+#endif
+#ifdef RT_OS_DARWIN
+# include <VBox/usblib-darwin.h>
+#endif
+/** @todo merge the usblib-win.h interface into the darwin and linux ports where suitable. */
+
+RT_C_DECLS_BEGIN
+/** @defgroup grp_usblib    USBLib - USB Support Library
+ * This module implements the basic low-level OS interfaces and common USB code.
+ * @{
+ */
+
+#ifdef IN_RING3
+/**
+ * Initializes the USBLib component.
+ *
+ * The USBLib keeps a per process connection to the kernel driver
+ * and all USBLib users within a process will share the same
+ * connection. USBLib does reference counting to make sure that
+ * the connection remains open until all users has called USBLibTerm().
+ *
+ * @returns VBox status code.
+ *
+ * @remark  The users within the process are responsible for not calling
+ *          this function at the same time (because I'm lazy).
+ */
+USBLIB_DECL(int) USBLibInit(void);
+
+/**
+ * Terminates the USBLib component.
+ *
+ * Must match successful USBLibInit calls.
+ *
+ * @returns VBox status code.
+ */
+USBLIB_DECL(int) USBLibTerm(void);
+
+/**
+ * Adds a filter.
+ *
+ * This function will validate and transfer the specified filter
+ * to the kernel driver and make it start using it. The kernel
+ * driver will return a filter id that this function passes on
+ * to its caller.
+ *
+ * The kernel driver will associate the added filter with the
+ * calling process and automatically remove all filters when
+ * the process terminates the connection to it or dies.
+ *
+ * @returns Filter id for passing to USBLibRemoveFilter on success.
+ * @returns NULL on failure.
+ *
+ * @param   pFilter     The filter to add.
+ */
+USBLIB_DECL(void *) USBLibAddFilter(PCUSBFILTER pFilter);
+
+/**
+ * Removes a filter.
+ *
+ * @param   pvId        The ID returned by USBLibAddFilter.
+ */
+USBLIB_DECL(void) USBLibRemoveFilter(void *pvId);
+
+/**
+ * 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);
+
+#endif /* IN_RING3 */
+
+/**
+ * Purge string of non-UTF-8 encodings and control characters.
+ *
+ * Control characters creates problems when presented to the user and currently
+ * also when used in XML settings.  So, we must purge them in the USB vendor,
+ * product, and serial number strings.
+ *
+ * @returns String length (excluding terminator).
+ * @param   psz                 The string to purge.
+ *
+ * @remarks The return string may be shorter than the input, left over space
+ *          after the end of the string will be filled with zeros.
+ */
+DECLINLINE(size_t) USBLibPurgeEncoding(char *psz)
+{
+    if (psz)
+    {
+        size_t offSrc;
+
+        /* Beat it into valid UTF-8 encoding. */
+        RTStrPurgeEncoding(psz);
+
+        /* Look for control characters. */
+        for (offSrc = 0; ; offSrc++)
+        {
+            char ch = psz[offSrc];
+            if (RT_UNLIKELY(RT_C_IS_CNTRL(ch) && ch != '\0'))
+            {
+                /* Found a control character! Replace tab by space and remove all others. */
+                size_t offDst = offSrc;
+                for (;; offSrc++)
+                {
+                    ch = psz[offSrc];
+                    if (RT_C_IS_CNTRL(ch) && ch != '\0')
+                    {
+                        if (ch == '\t')
+                            ch = ' ';
+                        else
+                            continue;
+                    }
+                    psz[offDst++] = ch;
+                    if (ch == '\0')
+                        break;
+                }
+
+                /* Wind back to the zero terminator and zero fill any gap to make
+                   USBFilterValidate happy.  (offSrc is at zero terminator too.) */
+                offDst--;
+                while (offSrc > offDst)
+                    psz[offSrc--] = '\0';
+
+                return offDst;
+            }
+            if (ch == '\0')
+                break;
+        }
+        return offSrc;
+    }
+    return 0;
+}
+
+
+/** @} */
+RT_C_DECLS_END
+
+#endif /* !VBOX_INCLUDED_usblib_h */
+