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410 lines
14 KiB
C
410 lines
14 KiB
C
/** @file
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function definitions for internal to shell functions.
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(C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>
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Copyright (c) 2009 - 2016, 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 _SHELL_INTERNAL_HEADER_
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#define _SHELL_INTERNAL_HEADER_
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#include <Uefi.h>
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#include <Guid/ShellVariableGuid.h>
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#include <Guid/ShellAliasGuid.h>
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#include <Protocol/LoadedImage.h>
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#include <Protocol/SimpleTextOut.h>
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#include <Protocol/Shell.h>
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#include <Protocol/EfiShellInterface.h>
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#include <Protocol/EfiShellEnvironment2.h>
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#include <Protocol/ShellParameters.h>
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#include <Protocol/BlockIo.h>
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#include <Protocol/HiiPackageList.h>
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#include <Library/BaseLib.h>
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#include <Library/UefiApplicationEntryPoint.h>
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#include <Library/UefiLib.h>
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#include <Library/DebugLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/ShellCommandLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/PcdLib.h>
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#include <Library/ShellLib.h>
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#include <Library/SortLib.h>
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#include <Library/HiiLib.h>
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#include <Library/PrintLib.h>
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#include <Library/HandleParsingLib.h>
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#include <Library/FileHandleLib.h>
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#include <Library/UefiHiiServicesLib.h>
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#include "ShellParametersProtocol.h"
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#include "ShellProtocol.h"
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#include "ShellEnvVar.h"
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#include "ConsoleLogger.h"
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#include "ShellManParser.h"
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#include "ConsoleWrappers.h"
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#include "FileHandleWrappers.h"
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extern CONST CHAR16 mNoNestingEnvVarName[];
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extern CONST CHAR16 mNoNestingTrue[];
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extern CONST CHAR16 mNoNestingFalse[];
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typedef struct {
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LIST_ENTRY Link; ///< Standard linked list handler.
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SHELL_FILE_HANDLE SplitStdOut; ///< ConsoleOut for use in the split.
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SHELL_FILE_HANDLE SplitStdIn; ///< ConsoleIn for use in the split.
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} SPLIT_LIST;
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typedef struct {
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UINT32 Startup:1; ///< Was "-startup" found on command line.
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UINT32 NoStartup:1; ///< Was "-nostartup" found on command line.
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UINT32 NoConsoleOut:1; ///< Was "-noconsoleout" found on command line.
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UINT32 NoConsoleIn:1; ///< Was "-noconsolein" found on command line.
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UINT32 NoInterrupt:1; ///< Was "-nointerrupt" found on command line.
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UINT32 NoMap:1; ///< Was "-nomap" found on command line.
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UINT32 NoVersion:1; ///< Was "-noversion" found on command line.
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UINT32 Delay:1; ///< Was "-delay[:n] found on command line
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UINT32 Exit:1; ///< Was "-_exit" found on command line
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UINT32 NoNest:1; ///< Was "-nonest" found on command line
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UINT32 Reserved:7; ///< Extra bits
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} SHELL_BITS;
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typedef union {
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SHELL_BITS Bits;
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UINT16 AllBits;
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} SHELL_BIT_UNION;
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typedef struct {
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SHELL_BIT_UNION BitUnion;
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UINTN Delay; ///< Seconds of delay default:5.
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CHAR16 *FileName; ///< Filename to run upon successful initialization.
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CHAR16 *FileOptions; ///< Options to pass to FileName.
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} SHELL_INIT_SETTINGS;
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typedef struct {
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BUFFER_LIST CommandHistory;
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UINTN VisibleRowNumber;
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UINTN OriginalVisibleRowNumber;
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BOOLEAN InsertMode; ///< Is the current typing mode insert (FALSE = overwrite).
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} SHELL_VIEWING_SETTINGS;
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typedef struct {
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EFI_SHELL_PARAMETERS_PROTOCOL *NewShellParametersProtocol;
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EFI_SHELL_PROTOCOL *NewEfiShellProtocol;
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BOOLEAN PageBreakEnabled;
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BOOLEAN RootShellInstance;
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SHELL_INIT_SETTINGS ShellInitSettings;
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BUFFER_LIST BufferToFreeList; ///< List of buffers that were returned to the user to free.
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SHELL_VIEWING_SETTINGS ViewingSettings;
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EFI_HII_HANDLE HiiHandle; ///< Handle from HiiLib.
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UINTN LogScreenCount; ///< How many screens of log information to save.
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EFI_EVENT UserBreakTimer; ///< Timer event for polling for CTRL-C.
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EFI_DEVICE_PATH_PROTOCOL *ImageDevPath; ///< DevicePath for ourselves.
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EFI_DEVICE_PATH_PROTOCOL *FileDevPath; ///< DevicePath for ourselves.
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CONSOLE_LOGGER_PRIVATE_DATA *ConsoleInfo; ///< Pointer for ConsoleInformation.
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EFI_SHELL_PARAMETERS_PROTOCOL *OldShellParameters; ///< old shell parameters to reinstall upon exiting.
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SHELL_PROTOCOL_HANDLE_LIST OldShellList; ///< List of other instances to reinstall when closing.
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SPLIT_LIST SplitList; ///< List of Splits in FILO stack.
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VOID *CtrlCNotifyHandle1; ///< The NotifyHandle returned from SimpleTextInputEx.RegisterKeyNotify.
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VOID *CtrlCNotifyHandle2; ///< The NotifyHandle returned from SimpleTextInputEx.RegisterKeyNotify.
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VOID *CtrlCNotifyHandle3; ///< The NotifyHandle returned from SimpleTextInputEx.RegisterKeyNotify.
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VOID *CtrlCNotifyHandle4; ///< The NotifyHandle returned from SimpleTextInputEx.RegisterKeyNotify.
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VOID *CtrlSNotifyHandle1; ///< The NotifyHandle returned from SimpleTextInputEx.RegisterKeyNotify.
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VOID *CtrlSNotifyHandle2; ///< The NotifyHandle returned from SimpleTextInputEx.RegisterKeyNotify.
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VOID *CtrlSNotifyHandle3; ///< The NotifyHandle returned from SimpleTextInputEx.RegisterKeyNotify.
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VOID *CtrlSNotifyHandle4; ///< The NotifyHandle returned from SimpleTextInputEx.RegisterKeyNotify.
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BOOLEAN HaltOutput; ///< TRUE to start a CTRL-S halt.
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} SHELL_INFO;
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#pragma pack(1)
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///
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/// HII specific Vendor Device Path definition.
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///
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typedef struct {
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VENDOR_DEVICE_PATH VendorDevicePath;
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EFI_DEVICE_PATH_PROTOCOL End;
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} SHELL_MAN_HII_VENDOR_DEVICE_PATH;
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#pragma pack()
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extern SHELL_INFO ShellInfoObject;
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/**
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Converts the command line to it's post-processed form. this replaces variables and alias' per UEFI Shell spec.
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@param[in,out] CmdLine pointer to the command line to update
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@retval EFI_SUCCESS The operation was successful
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@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
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@return some other error occurred
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**/
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EFI_STATUS
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ProcessCommandLineToFinal(
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IN OUT CHAR16 **CmdLine
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);
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/**
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Function to update the shell variable "lasterror".
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@param[in] ErrorCode the error code to put into lasterror
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**/
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EFI_STATUS
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SetLastError(
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IN CONST SHELL_STATUS ErrorCode
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);
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/**
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Sets all the alias' that were registered with the ShellCommandLib library.
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@retval EFI_SUCCESS all init commands were run successfully.
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**/
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EFI_STATUS
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SetBuiltInAlias(
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VOID
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);
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/**
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This function will populate the 2 device path protocol parameters based on the
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global gImageHandle. the DevPath will point to the device path for the handle that has
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loaded image protocol installed on it. the FilePath will point to the device path
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for the file that was loaded.
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@param[in, out] DevPath on a successful return the device path to the loaded image
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@param[in, out] FilePath on a successful return the device path to the file
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@retval EFI_SUCCESS the 2 device paths were successfully returned.
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@return other a error from gBS->HandleProtocol
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@sa HandleProtocol
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**/
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EFI_STATUS
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GetDevicePathsForImageAndFile (
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IN OUT EFI_DEVICE_PATH_PROTOCOL **DevPath,
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IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath
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);
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/**
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Process all Uefi Shell 2.0 command line options.
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see Uefi Shell 2.0 section 3.2 for full details.
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the command line should resemble the following:
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shell.efi [ShellOpt-options] [options] [file-name [file-name-options]]
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ShellOpt options Options which control the initialization behavior of the shell.
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These options are read from the EFI global variable "ShellOpt"
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and are processed before options or file-name.
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options Options which control the initialization behavior of the shell.
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file-name The name of a UEFI shell application or script to be executed
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after initialization is complete. By default, if file-name is
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specified, then -nostartup is implied. Scripts are not supported
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by level 0.
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file-nameoptions The command-line options that are passed to file-name when it
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is invoked.
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This will initialize the ShellInitSettings global variable.
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@retval EFI_SUCCESS the variable is initialized.
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**/
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EFI_STATUS
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ProcessCommandLine(
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VOID
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);
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/**
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Handles all interaction with the default startup script.
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this will check that the correct command line parameters were passed, handle the delay, and then start running the script.
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@param[in] ImagePath The path to the image for shell. The first place to look for the startup script.
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@param[in] FilePath The path to the file for shell. The second place to look for the startup script.
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@retval EFI_SUCCESS The variable is initialized.
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**/
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EFI_STATUS
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DoStartupScript(
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IN EFI_DEVICE_PATH_PROTOCOL *ImagePath,
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IN EFI_DEVICE_PATH_PROTOCOL *FilePath
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);
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/**
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Function to perform the shell prompt looping. It will do a single prompt,
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dispatch the result, and then return. It is expected that the caller will
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call this function in a loop many times.
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@retval EFI_SUCCESS
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@retval RETURN_ABORTED
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**/
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EFI_STATUS
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DoShellPrompt (
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VOID
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);
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/**
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Add a buffer to the Buffer To Free List for safely returning buffers to other
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places without risking letting them modify internal shell information.
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@param Buffer Something to pass to FreePool when the shell is exiting.
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**/
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VOID*
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AddBufferToFreeList(
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VOID *Buffer
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);
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/**
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Add a buffer to the Command History List.
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@param Buffer[in] The line buffer to add.
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**/
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VOID
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AddLineToCommandHistory(
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IN CONST CHAR16 *Buffer
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);
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/**
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Function will process and run a command line.
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This will determine if the command line represents an internal shell command or dispatch an external application.
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@param[in] CmdLine the command line to parse
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@retval EFI_SUCCESS the command was completed
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@retval EFI_ABORTED the command's operation was aborted
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**/
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EFI_STATUS
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RunCommand(
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IN CONST CHAR16 *CmdLine
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);
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/**
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Function will process and run a command line.
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This will determine if the command line represents an internal shell
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command or dispatch an external application.
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@param[in] CmdLine The command line to parse.
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@param[out] CommandStatus The status from the command line.
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@retval EFI_SUCCESS The command was completed.
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@retval EFI_ABORTED The command's operation was aborted.
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**/
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EFI_STATUS
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RunShellCommand(
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IN CONST CHAR16 *CmdLine,
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OUT EFI_STATUS *CommandStatus
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);
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/**
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Function determines if the CommandName COULD be a valid command. It does not determine whether
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this is a valid command. It only checks for invalid characters.
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@param[in] CommandName The name to check
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@retval TRUE CommandName could be a command name
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@retval FALSE CommandName could not be a valid command name
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**/
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BOOLEAN
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IsValidCommandName(
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IN CONST CHAR16 *CommandName
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);
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/**
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Function to process a NSH script file via SHELL_FILE_HANDLE.
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@param[in] Handle The handle to the already opened file.
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@param[in] Name The name of the script file.
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@retval EFI_SUCCESS the script completed successfully
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**/
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EFI_STATUS
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RunScriptFileHandle (
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IN SHELL_FILE_HANDLE Handle,
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IN CONST CHAR16 *Name
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);
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/**
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Function to process a NSH script file.
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@param[in] ScriptPath Pointer to the script file name (including file system path).
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@param[in] Handle the handle of the script file already opened.
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@param[in] CmdLine the command line to run.
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@param[in] ParamProtocol the shell parameters protocol pointer
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@retval EFI_SUCCESS the script completed successfully
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**/
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EFI_STATUS
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RunScriptFile (
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IN CONST CHAR16 *ScriptPath,
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IN SHELL_FILE_HANDLE Handle OPTIONAL,
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IN CONST CHAR16 *CmdLine,
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IN EFI_SHELL_PARAMETERS_PROTOCOL *ParamProtocol
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);
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/**
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Return the pointer to the first occurrence of any character from a list of characters.
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@param[in] String the string to parse
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@param[in] CharacterList the list of character to look for
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@param[in] EscapeCharacter An escape character to skip
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@return the location of the first character in the string
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@retval CHAR_NULL no instance of any character in CharacterList was found in String
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**/
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CONST CHAR16*
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FindFirstCharacter(
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IN CONST CHAR16 *String,
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IN CONST CHAR16 *CharacterList,
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IN CONST CHAR16 EscapeCharacter
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);
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/**
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Cleans off leading and trailing spaces and tabs.
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@param[in] String pointer to the string to trim them off.
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**/
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EFI_STATUS
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TrimSpaces(
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IN CHAR16 **String
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);
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/**
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Create a new buffer list and stores the old one to OldBufferList
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@param OldBufferList The temporary list head used to store the nodes in BufferToFreeList.
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**/
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VOID
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SaveBufferList (
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OUT LIST_ENTRY *OldBufferList
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);
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/**
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Restore previous nodes into BufferToFreeList .
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@param OldBufferList The temporary list head used to store the nodes in BufferToFreeList.
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**/
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VOID
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RestoreBufferList (
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IN OUT LIST_ENTRY *OldBufferList
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);
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#endif //_SHELL_INTERNAL_HEADER_
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