This commit implements the (mostly?) Linux compatible efidp_format_device_path and efidp_parse_device_path APIs. These are the only APIs exposed through this library. However, they are built on code from Tianocore's EDK2 MdePkg. They are brought in as new files here for reasons described in FreeBSD-update. Symbol versioning will be introduced to control what's exported from the EDK2 code. Some structural changes may be necessary when we move to sharing with sys/boot/efi. Sponsored by: Netflix
627 lines
21 KiB
C
627 lines
21 KiB
C
/*-
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* Copyright (c) 2017 Netflix, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Taken from MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.h
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* hash a11928f3310518ab1c6fd34e8d0fdbb72de9602c 2017-Mar-01
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*/
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/** @file
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Definition for Device Path library.
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Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _UEFI_DEVICE_PATH_LIB_H_
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#define _UEFI_DEVICE_PATH_LIB_H_
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#include <Uefi.h>
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#include <Protocol/DevicePathUtilities.h>
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#include <Protocol/DebugPort.h>
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#include <Protocol/DevicePathToText.h>
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#include <Protocol/DevicePathFromText.h>
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#include <Guid/PcAnsi.h>
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#include <Library/DebugLib.h>
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#include <Library/PrintLib.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/PcdLib.h>
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#include <IndustryStandard/Bluetooth.h>
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#define IS_COMMA(a) ((a) == ',')
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#define IS_HYPHEN(a) ((a) == '-')
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#define IS_DOT(a) ((a) == '.')
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#define IS_LEFT_PARENTH(a) ((a) == '(')
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#define IS_RIGHT_PARENTH(a) ((a) == ')')
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#define IS_SLASH(a) ((a) == '/')
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#define IS_NULL(a) ((a) == '\0')
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//
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// Private Data structure
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//
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typedef struct {
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char *Str;
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UINTN Count;
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UINTN Capacity;
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} POOL_PRINT;
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typedef
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EFI_DEVICE_PATH_PROTOCOL *
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(*DEVICE_PATH_FROM_TEXT) (
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IN char *Str
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);
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typedef
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VOID
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(*DEVICE_PATH_TO_TEXT) (
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IN OUT POOL_PRINT *Str,
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IN VOID *DevicePath,
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IN BOOLEAN DisplayOnly,
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IN BOOLEAN AllowShortcuts
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);
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typedef struct {
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UINT8 Type;
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UINT8 SubType;
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DEVICE_PATH_TO_TEXT Function;
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} DEVICE_PATH_TO_TEXT_TABLE;
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typedef struct {
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UINT8 Type;
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const char *Text;
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} DEVICE_PATH_TO_TEXT_GENERIC_TABLE;
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typedef struct {
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const char *DevicePathNodeText;
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DEVICE_PATH_FROM_TEXT Function;
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} DEVICE_PATH_FROM_TEXT_TABLE;
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typedef struct {
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BOOLEAN ClassExist;
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UINT8 Class;
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BOOLEAN SubClassExist;
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UINT8 SubClass;
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} USB_CLASS_TEXT;
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#define USB_CLASS_AUDIO 1
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#define USB_CLASS_CDCCONTROL 2
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#define USB_CLASS_HID 3
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#define USB_CLASS_IMAGE 6
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#define USB_CLASS_PRINTER 7
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#define USB_CLASS_MASS_STORAGE 8
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#define USB_CLASS_HUB 9
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#define USB_CLASS_CDCDATA 10
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#define USB_CLASS_SMART_CARD 11
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#define USB_CLASS_VIDEO 14
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#define USB_CLASS_DIAGNOSTIC 220
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#define USB_CLASS_WIRELESS 224
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#define USB_CLASS_RESERVE 254
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#define USB_SUBCLASS_FW_UPDATE 1
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#define USB_SUBCLASS_IRDA_BRIDGE 2
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#define USB_SUBCLASS_TEST 3
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#define RFC_1700_UDP_PROTOCOL 17
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#define RFC_1700_TCP_PROTOCOL 6
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#pragma pack(1)
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT8 VendorDefinedData[1];
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} VENDOR_DEFINED_HARDWARE_DEVICE_PATH;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT8 VendorDefinedData[1];
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} VENDOR_DEFINED_MESSAGING_DEVICE_PATH;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT8 VendorDefinedData[1];
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} VENDOR_DEFINED_MEDIA_DEVICE_PATH;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 Hid;
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UINT32 Uid;
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UINT32 Cid;
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CHAR8 HidUidCidStr[3];
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} ACPI_EXTENDED_HID_DEVICE_PATH_WITH_STR;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT16 NetworkProtocol;
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UINT16 LoginOption;
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UINT64 Lun;
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UINT16 TargetPortalGroupTag;
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CHAR8 TargetName[1];
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} ISCSI_DEVICE_PATH_WITH_NAME;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT8 VendorDefinedData[1];
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} VENDOR_DEVICE_PATH_WITH_DATA;
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#pragma pack()
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#ifdef FreeBSD /* Remove these on FreeBSD */
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/**
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Returns the size of a device path in bytes.
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This function returns the size, in bytes, of the device path data structure
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specified by DevicePath including the end of device path node.
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If DevicePath is NULL or invalid, then 0 is returned.
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@param DevicePath A pointer to a device path data structure.
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@retval 0 If DevicePath is NULL or invalid.
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@retval Others The size of a device path in bytes.
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**/
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UINTN
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EFIAPI
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UefiDevicePathLibGetDevicePathSize (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
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);
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/**
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Creates a new copy of an existing device path.
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This function allocates space for a new copy of the device path specified by DevicePath.
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If DevicePath is NULL, then NULL is returned. If the memory is successfully
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allocated, then the contents of DevicePath are copied to the newly allocated
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buffer, and a pointer to that buffer is returned. Otherwise, NULL is returned.
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The memory for the new device path is allocated from EFI boot services memory.
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It is the responsibility of the caller to free the memory allocated.
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@param DevicePath A pointer to a device path data structure.
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@retval NULL DevicePath is NULL or invalid.
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@retval Others A pointer to the duplicated device path.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibDuplicateDevicePath (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
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);
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/**
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Creates a new device path by appending a second device path to a first device path.
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This function creates a new device path by appending a copy of SecondDevicePath
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to a copy of FirstDevicePath in a newly allocated buffer. Only the end-of-device-path
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device node from SecondDevicePath is retained. The newly created device path is
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returned. If FirstDevicePath is NULL, then it is ignored, and a duplicate of
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SecondDevicePath is returned. If SecondDevicePath is NULL, then it is ignored,
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and a duplicate of FirstDevicePath is returned. If both FirstDevicePath and
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SecondDevicePath are NULL, then a copy of an end-of-device-path is returned.
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If there is not enough memory for the newly allocated buffer, then NULL is returned.
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The memory for the new device path is allocated from EFI boot services memory.
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It is the responsibility of the caller to free the memory allocated.
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@param FirstDevicePath A pointer to a device path data structure.
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@param SecondDevicePath A pointer to a device path data structure.
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@retval NULL If there is not enough memory for the newly allocated buffer.
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@retval NULL If FirstDevicePath or SecondDevicePath is invalid.
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@retval Others A pointer to the new device path if success.
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Or a copy an end-of-device-path if both FirstDevicePath and SecondDevicePath are NULL.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibAppendDevicePath (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL
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IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL
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);
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/**
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Creates a new path by appending the device node to the device path.
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This function creates a new device path by appending a copy of the device node
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specified by DevicePathNode to a copy of the device path specified by DevicePath
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in an allocated buffer. The end-of-device-path device node is moved after the
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end of the appended device node.
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If DevicePathNode is NULL then a copy of DevicePath is returned.
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If DevicePath is NULL then a copy of DevicePathNode, followed by an end-of-device
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path device node is returned.
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If both DevicePathNode and DevicePath are NULL then a copy of an end-of-device-path
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device node is returned.
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If there is not enough memory to allocate space for the new device path, then
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NULL is returned.
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The memory is allocated from EFI boot services memory. It is the responsibility
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of the caller to free the memory allocated.
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@param DevicePath A pointer to a device path data structure.
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@param DevicePathNode A pointer to a single device path node.
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@retval NULL If there is not enough memory for the new device path.
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@retval Others A pointer to the new device path if success.
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A copy of DevicePathNode followed by an end-of-device-path node
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if both FirstDevicePath and SecondDevicePath are NULL.
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A copy of an end-of-device-path node if both FirstDevicePath
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and SecondDevicePath are NULL.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibAppendDevicePathNode (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL
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);
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/**
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Creates a new device path by appending the specified device path instance to the specified device
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path.
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This function creates a new device path by appending a copy of the device path
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instance specified by DevicePathInstance to a copy of the device path specified
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by DevicePath in a allocated buffer.
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The end-of-device-path device node is moved after the end of the appended device
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path instance and a new end-of-device-path-instance node is inserted between.
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If DevicePath is NULL, then a copy if DevicePathInstance is returned.
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If DevicePathInstance is NULL, then NULL is returned.
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If DevicePath or DevicePathInstance is invalid, then NULL is returned.
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If there is not enough memory to allocate space for the new device path, then
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NULL is returned.
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The memory is allocated from EFI boot services memory. It is the responsibility
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of the caller to free the memory allocated.
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@param DevicePath A pointer to a device path data structure.
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@param DevicePathInstance A pointer to a device path instance.
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@return A pointer to the new device path.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibAppendDevicePathInstance (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL
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);
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/**
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Creates a copy of the current device path instance and returns a pointer to the next device path
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instance.
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This function creates a copy of the current device path instance. It also updates
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DevicePath to point to the next device path instance in the device path (or NULL
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if no more) and updates Size to hold the size of the device path instance copy.
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If DevicePath is NULL, then NULL is returned.
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If DevicePath points to a invalid device path, then NULL is returned.
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If there is not enough memory to allocate space for the new device path, then
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NULL is returned.
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The memory is allocated from EFI boot services memory. It is the responsibility
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of the caller to free the memory allocated.
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If Size is NULL, then ASSERT().
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@param DevicePath On input, this holds the pointer to the current
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device path instance. On output, this holds
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the pointer to the next device path instance
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or NULL if there are no more device path
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instances in the device path pointer to a
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device path data structure.
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@param Size On output, this holds the size of the device
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path instance, in bytes or zero, if DevicePath
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is NULL.
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@return A pointer to the current device path instance.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibGetNextDevicePathInstance (
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IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath,
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OUT UINTN *Size
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);
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/**
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Creates a device node.
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This function creates a new device node in a newly allocated buffer of size
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NodeLength and initializes the device path node header with NodeType and NodeSubType.
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The new device path node is returned.
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If NodeLength is smaller than a device path header, then NULL is returned.
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If there is not enough memory to allocate space for the new device path, then
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NULL is returned.
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The memory is allocated from EFI boot services memory. It is the responsibility
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of the caller to free the memory allocated.
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@param NodeType The device node type for the new device node.
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@param NodeSubType The device node sub-type for the new device node.
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@param NodeLength The length of the new device node.
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@return The new device path.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibCreateDeviceNode (
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IN UINT8 NodeType,
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IN UINT8 NodeSubType,
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IN UINT16 NodeLength
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);
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/**
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Determines if a device path is single or multi-instance.
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This function returns TRUE if the device path specified by DevicePath is
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multi-instance.
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Otherwise, FALSE is returned.
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If DevicePath is NULL or invalid, then FALSE is returned.
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@param DevicePath A pointer to a device path data structure.
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@retval TRUE DevicePath is multi-instance.
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@retval FALSE DevicePath is not multi-instance, or DevicePath
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is NULL or invalid.
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**/
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BOOLEAN
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EFIAPI
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UefiDevicePathLibIsDevicePathMultiInstance (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
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);
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/**
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Converts a device path to its text representation.
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@param DevicePath A Pointer to the device to be converted.
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@param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation
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of the display node is used, where applicable. If DisplayOnly
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is FALSE, then the longer text representation of the display node
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is used.
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@param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text
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representation for a device node can be used, where applicable.
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@return A pointer to the allocated text representation of the device path or
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NULL if DeviceNode is NULL or there was insufficient memory.
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**/
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CHAR16 *
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EFIAPI
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UefiDevicePathLibConvertDevicePathToText (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,
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IN BOOLEAN DisplayOnly,
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IN BOOLEAN AllowShortcuts
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);
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/**
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Converts a device node to its string representation.
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@param DeviceNode A Pointer to the device node to be converted.
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@param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation
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of the display node is used, where applicable. If DisplayOnly
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is FALSE, then the longer text representation of the display node
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is used.
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@param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text
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representation for a device node can be used, where applicable.
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@return A pointer to the allocated text representation of the device node or NULL if DeviceNode
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is NULL or there was insufficient memory.
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**/
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CHAR16 *
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EFIAPI
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UefiDevicePathLibConvertDeviceNodeToText (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode,
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IN BOOLEAN DisplayOnly,
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IN BOOLEAN AllowShortcuts
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);
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/**
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Convert text to the binary representation of a device node.
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@param TextDeviceNode TextDeviceNode points to the text representation of a device
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node. Conversion starts with the first character and continues
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until the first non-device node character.
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@return A pointer to the EFI device node or NULL if TextDeviceNode is NULL or there was
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insufficient memory or text unsupported.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibConvertTextToDeviceNode (
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IN CONST CHAR16 *TextDeviceNode
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);
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/**
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Convert text to the binary representation of a device path.
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@param TextDevicePath TextDevicePath points to the text representation of a device
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path. Conversion starts with the first character and continues
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until the first non-device node character.
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@return A pointer to the allocated device path or NULL if TextDeviceNode is NULL or
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there was insufficient memory.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibConvertTextToDevicePath (
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IN CONST CHAR16 *TextDevicePath
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);
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#else
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/*
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* Small FreeBSD shim layer. Fast and lose hacks to make this code work with FreeBSD.
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*/
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#include <ctype.h>
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#define _PCD_GET_MODE_32_PcdMaximumDevicePathNodeCount 1000
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#define MAX_UINTN UINTPTR_MAX
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#define AllocatePool(x) malloc(x)
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#define AllocateZeroPool(x) calloc(1,x)
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#define AsciiStrLen(s) strlen(s)
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#define CopyGuid(dst, src) memcpy(dst, src, sizeof(uuid_t))
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#define CopyMem(d, s, l) memcpy(d, s, l)
|
|
#define FreePool(x) free(x)
|
|
#define LShiftU64(x, s) ((x) << s)
|
|
#define ReadUnaligned64(x) le64dec(x)
|
|
#define ReallocatePool(old, new, ptr) realloc(ptr, new)
|
|
#define StrCmp(a, b) strcmp(a, b)
|
|
#define StrCpyS(d, l, s) strcpy(d, s)
|
|
#define StrHexToUint64(x) strtoll(x, NULL, 16)
|
|
#define StrHexToUintn(x) strtoll(x, NULL, 16)
|
|
#define StrLen(x) strlen(x)
|
|
#define StrSize(x) (strlen(x) + 1)
|
|
#define StrnCatS(d, l, s, len) strncat(d, s, len)
|
|
#define StrnCmp(a, b, n) strncmp(a, b, n)
|
|
#define StrnLenS(str, max) strlen(str)
|
|
#define Strtoi(x) strtol(x, NULL, 0)
|
|
#define Strtoi64(x, y) *(long long *)y = strtoll(x, NULL, 0)
|
|
#define SwapBytes64(u64) bswap64(u64)
|
|
#define UnicodeStrToAsciiStrS(src, dest, len) strlcpy(dest, src, len)
|
|
#define ZeroMem(p,l) memset(p, 0, l)
|
|
|
|
#undef ASSERT
|
|
#define ASSERT(x)
|
|
|
|
/*
|
|
* Define AllocateCopyPool and others so that we "forget" about the
|
|
* previous non-static deifnition since we want these to be static
|
|
* inlines.
|
|
*/
|
|
#define AllocateCopyPool AllocateCopyPoolFreeBSD
|
|
#define CompareGuid CompareGuidFreeBSD
|
|
#define StrHexToBytes StrHexToBytesFreeBSD
|
|
#define StrToGuid StrToGuidFreeBSD
|
|
#define WriteUnaligned64 WriteUnaligned64FreeBSD
|
|
|
|
static inline void *
|
|
AllocateCopyPool(size_t l, const void *p)
|
|
{
|
|
void *rv;
|
|
|
|
rv = malloc(l);
|
|
if (rv == NULL)
|
|
return NULL;
|
|
memcpy(rv, p, l);
|
|
return (rv);
|
|
}
|
|
|
|
static inline BOOLEAN
|
|
CompareGuid (const GUID *g1, const GUID *g2)
|
|
{
|
|
uint32_t ignored_status;
|
|
|
|
return (uuid_compare((const uuid_t *)g1, (const uuid_t *)g2,
|
|
&ignored_status) == 0);
|
|
}
|
|
|
|
static inline int
|
|
StrHexToBytes(const char *str, size_t len, uint8_t *buf, size_t buflen)
|
|
{
|
|
size_t i;
|
|
char hex[3];
|
|
|
|
/*
|
|
* Sanity check preconditions.
|
|
*/
|
|
if (buflen != len / 2 || (len % 1) == 1)
|
|
return 1;
|
|
for (i = 0; i < len; i += 2) {
|
|
if (!isxdigit(str[i]) || !isxdigit(str[i + 1]))
|
|
return 1;
|
|
hex[0] = str[i];
|
|
hex[1] = str[i + 1];
|
|
hex[2] = '\0';
|
|
buf[i / 2] = strtol(hex, NULL, 16);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline void
|
|
StrToGuid(const char *str, GUID *guid)
|
|
{
|
|
uint32_t status;
|
|
|
|
uuid_from_string(str, (uuid_t *)guid, &status);
|
|
}
|
|
|
|
static inline void
|
|
WriteUnaligned64(void *ptr, uint64_t val)
|
|
{
|
|
memcpy(ptr, &val, sizeof(val));
|
|
}
|
|
|
|
/*
|
|
* Hack to allow converting %g to %s in printfs. Hack because
|
|
* it's single entry, uses a static buffer, etc. Sufficient for
|
|
* the day for this file though. IF you ever have to convert
|
|
* two %g's in one format, punt. Did I mention this was super lame.
|
|
* Not to mention it's name.... Also, the error GUID is horrific.
|
|
*/
|
|
static inline const char *
|
|
guid_str(const GUID *g)
|
|
{
|
|
static char buf[36 + 1];
|
|
char *str = NULL;
|
|
int32_t ignored_status;
|
|
|
|
uuid_to_string((const uuid_t *)g, &str, &ignored_status);
|
|
if (str != NULL)
|
|
strlcpy(buf, str, sizeof(buf));
|
|
else
|
|
strlcpy(buf, "groot-cannot-decode-guid-groot-smash",
|
|
sizeof(buf)); /* ^^^^^^^ 36 characters ^^^^^^^ */
|
|
free(str);
|
|
return buf;
|
|
}
|
|
#define G(x) guid_str((const GUID *)(const void *)x)
|
|
#endif
|
|
|
|
#undef GLOBAL_REMOVE_IF_UNREFERENCED
|
|
#define GLOBAL_REMOVE_IF_UNREFERENCED static
|
|
|
|
#endif
|