diff options
Diffstat (limited to 'OldMdePkg/Library/UefiDevicePathLib')
-rw-r--r-- | OldMdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.c | 524 | ||||
-rw-r--r-- | OldMdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.msa | 59 |
2 files changed, 0 insertions, 583 deletions
diff --git a/OldMdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.c b/OldMdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.c deleted file mode 100644 index f3e04e0319..0000000000 --- a/OldMdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.c +++ /dev/null @@ -1,524 +0,0 @@ -/** @file
- Device Path services. The thing to remember is device paths are built out of
- nodes. The device path is terminated by an end node that is length
- sizeof(EFI_DEVICE_PATH_PROTOCOL). That would be why there is sizeof(EFI_DEVICE_PATH_PROTOCOL)
- all over this file.
-
- The only place where multi-instance device paths are supported is in
- environment varibles. Multi-instance device paths should never be placed
- on a Handle.
-
- Copyright (c) 2006, Intel Corporation
- All rights reserved. This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
- Module Name: UefiDevicePathLib.c
-
-**/
-
-/**
- Returns the size of a device path in bytes.
-
- This function returns the size, in bytes, of the device path data structure specified by
- DevicePath including the end of device path node. If DevicePath is NULL, then 0 is returned.
-
- @param DevicePath A pointer to a device path data structure.
-
- @return The size of a device path in bytes.
-
-**/
-UINTN
-EFIAPI
-GetDevicePathSize (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- )
-{
- CONST EFI_DEVICE_PATH_PROTOCOL *Start;
-
- if (DevicePath == NULL) {
- return 0;
- }
-
- //
- // Search for the end of the device path structure
- //
- Start = DevicePath;
- while (!EfiIsDevicePathEnd (DevicePath)) {
- DevicePath = EfiNextDevicePathNode (DevicePath);
- }
-
- //
- // Compute the size and add back in the size of the end device path structure
- //
- return ((UINTN) DevicePath - (UINTN) Start) + sizeof (EFI_DEVICE_PATH_PROTOCOL);
-}
-
-/**
- Creates a new device path by appending a second device path to a first device path.
-
- This function allocates space for a new copy of the device path specified by DevicePath. If
- DevicePath is NULL, then NULL is returned. If the memory is successfully allocated, then the
- contents of DevicePath are copied to the newly allocated buffer, and a pointer to that buffer
- is returned. Otherwise, NULL is returned.
-
- @param DevicePath A pointer to a device path data structure.
-
- @return A pointer to the duplicated device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-DuplicateDevicePath (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- )
-{
- EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;
- UINTN Size;
-
- //
- // Compute the size
- //
- Size = GetDevicePathSize (DevicePath);
- if (Size == 0) {
- return NULL;
- }
-
- //
- // Allocate space for duplicate device path
- //
- NewDevicePath = AllocateCopyPool (Size, DevicePath);
-
- return NewDevicePath;
-}
-
-/**
- Creates a new device path by appending a second device path to a first device path.
-
- This function creates a new device path by appending a copy of SecondDevicePath to a copy of
- FirstDevicePath in a newly allocated buffer. Only the end-of-device-path device node from
- SecondDevicePath is retained. The newly created device path is returned.
- If FirstDevicePath is NULL, then it is ignored, and a duplicate of SecondDevicePath is returned.
- If SecondDevicePath is NULL, then it is ignored, and a duplicate of FirstDevicePath is returned.
- If both FirstDevicePath and SecondDevicePath are NULL, then NULL is returned.
- If there is not enough memory for the newly allocated buffer, then NULL is returned.
- The memory for the new device path is allocated from EFI boot services memory. It is the
- responsibility of the caller to free the memory allocated.
-
- @param FirstDevicePath A pointer to a device path data structure.
- @param SecondDevicePath A pointer to a device path data structure.
-
- @return A pointer to the new device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-AppendDevicePath (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL
- IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL
- )
-{
- UINTN Size;
- UINTN Size1;
- UINTN Size2;
- EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath2;
-
- //
- // If there's only 1 path, just duplicate it.
- //
- if (FirstDevicePath == NULL) {
- return DuplicateDevicePath (SecondDevicePath);
- }
-
- if (SecondDevicePath == NULL) {
- return DuplicateDevicePath (FirstDevicePath);
- }
-
- //
- // Allocate space for the combined device path. It only has one end node of
- // length EFI_DEVICE_PATH_PROTOCOL.
- //
- Size1 = GetDevicePathSize (FirstDevicePath);
- Size2 = GetDevicePathSize (SecondDevicePath);
- Size = Size1 + Size2 - sizeof (EFI_DEVICE_PATH_PROTOCOL);
-
- NewDevicePath = AllocatePool (Size);
-
- if (NewDevicePath != NULL) {
- NewDevicePath = CopyMem (NewDevicePath, FirstDevicePath, Size1);
- //
- // Over write FirstDevicePath EndNode and do the copy
- //
- DevicePath2 = (EFI_DEVICE_PATH_PROTOCOL *) ((CHAR8 *) NewDevicePath +
- (Size1 - sizeof (EFI_DEVICE_PATH_PROTOCOL)));
- CopyMem (DevicePath2, SecondDevicePath, Size2);
- }
-
- return NewDevicePath;
-}
-
-/**
- Creates a new path by appending the device node to the device path.
-
- This function creates a new device path by appending a copy of the device node specified by
- DevicePathNode to a copy of the device path specified by DevicePath in an allocated buffer.
- The end-of-device-path device node is moved after the end of the appended device node.
- If DevicePath is NULL, then NULL is returned.
- If DevicePathNode is NULL, then NULL is returned.
- If there is not enough memory to allocate space for the new device path, then NULL is returned.
- The memory is allocated from EFI boot services memory. It is the responsibility of the caller to
- free the memory allocated.
-
- @param DevicePath A pointer to a device path data structure.
- @param DevicePathNode A pointer to a single device path node.
-
- @return A pointer to the new device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-AppendDevicePathNode (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL
- )
-{
- EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
- EFI_DEVICE_PATH_PROTOCOL *NextNode;
- EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;
- UINTN NodeLength;
-
- if (DevicePath == NULL || DevicePathNode == NULL) {
- return NULL;
- }
- //
- // Build a Node that has a terminator on it
- //
- NodeLength = DevicePathNodeLength (DevicePathNode);
-
- TempDevicePath = AllocatePool (NodeLength + sizeof (EFI_DEVICE_PATH_PROTOCOL));
- if (TempDevicePath == NULL) {
- return NULL;
- }
- TempDevicePath = CopyMem (TempDevicePath, DevicePathNode, NodeLength);
- //
- // Add and end device path node to convert Node to device path
- //
- NextNode = NextDevicePathNode (TempDevicePath);
- SetDevicePathEndNode (NextNode);
- //
- // Append device paths
- //
- NewDevicePath = AppendDevicePath (DevicePath, TempDevicePath);
-
- FreePool (TempDevicePath);
-
- return NewDevicePath;
-}
-
-/**
- Creates a new device path by appending the specified device path instance to the specified device
- path.
-
- This function creates a new device path by appending a copy of the device path instance specified
- by DevicePathInstance to a copy of the device path secified by DevicePath in a allocated buffer.
- The end-of-device-path device node is moved after the end of the appended device path instance
- and a new end-of-device-path-instance node is inserted between.
- If DevicePath is NULL, then a copy if DevicePathInstance is returned.
- If DevicePathInstance is NULL, then NULL is returned.
- If there is not enough memory to allocate space for the new device path, then NULL is returned.
- The memory is allocated from EFI boot services memory. It is the responsibility of the caller to
- free the memory allocated.
-
- @param DevicePath A pointer to a device path data structure.
- @param DevicePathInstance A pointer to a device path instance.
-
- @return A pointer to the new device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-AppendDevicePathInstance (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL
- )
-{
- EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;
- EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
- UINTN SrcSize;
- UINTN InstanceSize;
-
- if (DevicePath == NULL) {
- return DuplicateDevicePath (DevicePathInstance);
- }
-
- if (DevicePathInstance == NULL) {
- return NULL;
- }
-
- SrcSize = GetDevicePathSize (DevicePath);
- InstanceSize = GetDevicePathSize (DevicePathInstance);
-
- NewDevicePath = AllocatePool (SrcSize + InstanceSize);
- if (NewDevicePath != NULL) {
-
- TempDevicePath = CopyMem (NewDevicePath, DevicePath, SrcSize);;
-
- while (!IsDevicePathEnd (TempDevicePath)) {
- TempDevicePath = NextDevicePathNode (TempDevicePath);
- }
-
- TempDevicePath->SubType = END_INSTANCE_DEVICE_PATH_SUBTYPE;
- TempDevicePath = NextDevicePathNode (TempDevicePath);
- CopyMem (TempDevicePath, DevicePathInstance, InstanceSize);
- }
-
- return NewDevicePath;
-}
-
-/**
- Creates a copy of the current device path instance and returns a pointer to the next device path
- instance.
-
- This function creates a copy of the current device path instance. It also updates DevicePath to
- point to the next device path instance in the device path (or NULL if no more) and updates Size
- to hold the size of the device path instance copy.
- If DevicePath is NULL, then NULL is returned.
- If there is not enough memory to allocate space for the new device path, then NULL is returned.
- The memory is allocated from EFI boot services memory. It is the responsibility of the caller to
- free the memory allocated.
- If Size is NULL, then ASSERT().
-
- @param DevicePath On input, this holds the pointer to the current device path
- instance. On output, this holds the pointer to the next device
- path instance or NULL if there are no more device path
- instances in the device path pointer to a device path data
- structure.
- @param Size On output, this holds the size of the device path instance, in
- bytes or zero, if DevicePath is NULL.
-
- @return A pointer to the current device path instance.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-GetNextDevicePathInstance (
- IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath,
- OUT UINTN *Size
- )
-{
- EFI_DEVICE_PATH_PROTOCOL *DevPath;
- EFI_DEVICE_PATH_PROTOCOL *ReturnValue;
- UINT8 Temp;
-
- ASSERT (Size != NULL);
-
- if (DevicePath == NULL || *DevicePath == NULL) {
- *Size = 0;
- return NULL;
- }
-
- //
- // Find the end of the device path instance
- //
- DevPath = *DevicePath;
- while (!IsDevicePathEndType (DevPath)) {
- DevPath = NextDevicePathNode (DevPath);
- }
-
- //
- // Compute the size of the device path instance
- //
- *Size = ((UINTN) DevPath - (UINTN) (*DevicePath)) + sizeof (EFI_DEVICE_PATH_PROTOCOL);
-
- //
- // Make a copy and return the device path instance
- //
- Temp = DevPath->SubType;
- DevPath->SubType = END_ENTIRE_DEVICE_PATH_SUBTYPE;
- ReturnValue = DuplicateDevicePath (*DevicePath);
- DevPath->SubType = Temp;
-
- //
- // If DevPath is the end of an entire device path, then another instance
- // does not follow, so *DevicePath is set to NULL.
- //
- if (DevicePathSubType (DevPath) == END_ENTIRE_DEVICE_PATH_SUBTYPE) {
- *DevicePath = NULL;
- } else {
- *DevicePath = NextDevicePathNode (DevPath);
- }
-
- return ReturnValue;
-}
-
-/**
- Creates a copy of the current device path instance and returns a pointer to the next device path
- instance.
-
- This function creates a new device node in a newly allocated buffer of size NodeLength and
- initializes the device path node header with NodeType and NodeSubType. The new device path node
- is returned.
- If NodeLength is smaller than a device path header, then NULL is returned.
- If there is not enough memory to allocate space for the new device path, then NULL is returned.
- The memory is allocated from EFI boot services memory. It is the responsibility of the caller to
- free the memory allocated.
-
- @param NodeType The device node type for the new device node.
- @param NodeSubType The device node sub-type for the new device node.
- @param NodeLength The length of the new device node.
-
- @return The new device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-CreateDeviceNode (
- IN UINT8 NodeType,
- IN UINT8 NodeSubType,
- IN UINT16 NodeLength
- )
-{
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
-
- if (NodeLength < sizeof (EFI_DEVICE_PATH_PROTOCOL)) {
- //
- // NodeLength is less than the size of the header.
- //
- return NULL;
- }
-
- DevicePath = AllocatePool (NodeLength);
- if (DevicePath != NULL) {
- DevicePath->Type = NodeType;
- DevicePath->SubType = NodeSubType;
- SetDevicePathNodeLength (DevicePath, NodeLength);
- }
-
- return DevicePath;
-}
-
-/**
- Determines if a device path is single or multi-instance.
-
- This function returns TRUE if the device path specified by DevicePath is multi-instance.
- Otherwise, FALSE is returned. If DevicePath is NULL, then FALSE is returned.
-
- @param DevicePath A pointer to a device path data structure.
-
- @retval TRUE DevicePath is multi-instance.
- @retval FALSE DevicePath is not multi-instance or DevicePath is NULL.
-
-**/
-BOOLEAN
-EFIAPI
-IsDevicePathMultiInstance (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- )
-{
- CONST EFI_DEVICE_PATH_PROTOCOL *Node;
-
- if (DevicePath == NULL) {
- return FALSE;
- }
-
- Node = DevicePath;
- while (!EfiIsDevicePathEnd (Node)) {
- if (EfiIsDevicePathEndInstance (Node)) {
- return TRUE;
- }
-
- Node = EfiNextDevicePathNode (Node);
- }
-
- return FALSE;
-}
-
-
-/**
- Retrieves the device path protocol from a handle.
-
- This function returns the device path protocol from the handle specified by Handle. If Handle is
- NULL or Handle does not contain a device path protocol, then NULL is returned.
-
- @param Handle The handle from which to retrieve the device path protocol.
-
- @return The device path protocol from the handle specified by Handle.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-DevicePathFromHandle (
- IN EFI_HANDLE Handle
- )
-{
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- EFI_STATUS Status;
-
- Status = gBS->HandleProtocol (
- Handle,
- &gEfiDevicePathProtocolGuid,
- (VOID *) &DevicePath
- );
- if (EFI_ERROR (Status)) {
- DevicePath = NULL;
- }
- return DevicePath;
-}
-
-/**
- Allocates a device path for a file and appends it to an existing device path.
-
- If Device is a valid device handle that contains a device path protocol, then a device path for
- the file specified by FileName is allocated and appended to the device path associated with the
- handle Device. The allocated device path is returned. If Device is NULL or Device is a handle
- that does not support the device path protocol, then a device path containing a single device
- path node for the file specified by FileName is allocated and returned.
- If FileName is NULL, then ASSERT().
-
- @param Device A pointer to a device handle. This parameter is optional and
- may be NULL.
- @param FileName A pointer to a Null-terminated Unicode string.
-
- @return The allocated device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-FileDevicePath (
- IN EFI_HANDLE Device, OPTIONAL
- IN CONST CHAR16 *FileName
- )
-{
- UINTN Size;
- FILEPATH_DEVICE_PATH *FilePath;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- EFI_DEVICE_PATH_PROTOCOL *FileDevicePath;
-
- DevicePath = NULL;
-
- Size = StrSize (FileName);
- FileDevicePath = AllocatePool (Size + SIZE_OF_FILEPATH_DEVICE_PATH + EFI_END_DEVICE_PATH_LENGTH);
- if (FileDevicePath != NULL) {
- FilePath = (FILEPATH_DEVICE_PATH *) FileDevicePath;
- FilePath->Header.Type = MEDIA_DEVICE_PATH;
- FilePath->Header.SubType = MEDIA_FILEPATH_DP;
- CopyMem (&FilePath->PathName, FileName, Size);
- SetDevicePathNodeLength (&FilePath->Header, Size + SIZE_OF_FILEPATH_DEVICE_PATH);
- SetDevicePathEndNode (NextDevicePathNode (&FilePath->Header));
-
- if (Device != NULL) {
- DevicePath = DevicePathFromHandle (Device);
- }
-
- DevicePath = AppendDevicePath (DevicePath, FileDevicePath);
- FreePool (FileDevicePath);
- }
-
- return DevicePath;
-}
-
diff --git a/OldMdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.msa b/OldMdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.msa deleted file mode 100644 index b6b94f9df8..0000000000 --- a/OldMdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.msa +++ /dev/null @@ -1,59 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?>
-<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
- <MsaHeader>
- <ModuleName>UefiDevicePathLib</ModuleName>
- <ModuleType>UEFI_DRIVER</ModuleType>
- <GuidValue>91c1677a-e57f-4191-8b8e-eb7711a716e0</GuidValue>
- <Version>1.0</Version>
- <Abstract>Component description file for the entry point to a EFIDXE Drivers</Abstract>
- <Description>Library to abstract Framework extensions that conflict with UEFI 2.0 Specification</Description>
- <Copyright>Copyright (c) 2006 - 2007, Intel Corporation</Copyright>
- <License>All rights reserved. This program and the accompanying materials - are licensed and made available under the terms and conditions of the BSD License - which accompanies this distribution. The full text of the license may be found at - http://opensource.org/licenses/bsd-license.php - THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
- <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION 0x00000052</Specification>
- </MsaHeader>
- <ModuleDefinitions>
- <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
- <BinaryModule>false</BinaryModule>
- <OutputFileBasename>UefiDevicePathLib</OutputFileBasename>
- </ModuleDefinitions>
- <LibraryClassDefinitions>
- <LibraryClass Usage="ALWAYS_PRODUCED" SupModuleList="DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SAL_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER">
- <Keyword>DevicePathLib</Keyword>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED">
- <Keyword>BaseMemoryLib</Keyword>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED">
- <Keyword>DebugLib</Keyword>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED">
- <Keyword>MemoryAllocationLib</Keyword>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED">
- <Keyword>UefiBootServicesTableLib</Keyword>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED">
- <Keyword>BaseLib</Keyword>
- </LibraryClass>
- </LibraryClassDefinitions>
- <SourceFiles>
- <Filename>UefiDevicePathLib.c</Filename>
- </SourceFiles>
- <PackageDependencies>
- <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
- </PackageDependencies>
- <Protocols>
- <Protocol Usage="ALWAYS_CONSUMED">
- <ProtocolCName>gEfiDevicePathProtocolGuid</ProtocolCName>
- </Protocol>
- </Protocols>
- <Externs>
- <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
- <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
- </Externs>
-</ModuleSurfaceArea>
\ No newline at end of file |