mirror of https://github.com/acidanthera/audk.git
722 lines
22 KiB
C
722 lines
22 KiB
C
/** @file
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Provides interface to shell internal functions for shell commands.
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This library is for use ONLY by shell commands linked into the shell application.
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This library will not funciton if it is used for UEFI Shell 2.0 Applications.
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Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>
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(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
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(C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.<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_COMMAND_LIB_
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#define _SHELL_COMMAND_LIB_
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#include <Uefi.h>
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#include <Protocol/Shell.h>
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#include <Protocol/ShellParameters.h>
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#include <Protocol/UnicodeCollation.h>
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#include <Protocol/SimpleFileSystem.h>
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#include <Library/UefiBootServicesTableLib.h>
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//
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// The extern global protocol poionters.
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//
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extern EFI_UNICODE_COLLATION_PROTOCOL *gUnicodeCollation;
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extern CONST CHAR16* SupportLevel[];
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//
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// The map list objects.
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//
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typedef struct {
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LIST_ENTRY Link;
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EFI_DEVICE_PATH_PROTOCOL *DevicePath;
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CHAR16 *MapName;
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CHAR16 *CurrentDirectoryPath;
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UINT64 Flags;
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} SHELL_MAP_LIST;
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/// List of Mappings - DeviceName and Drive Letter(ism).
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extern SHELL_MAP_LIST gShellMapList;
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/// Pointer to node of current directory in the mMapList.
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extern SHELL_MAP_LIST *gShellCurDir;
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/**
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Returns the help MAN fileName for a given shell command.
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@retval !NULL The unicode string of the MAN filename.
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@retval NULL An error ocurred.
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**/
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typedef
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CONST CHAR16 *
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(EFIAPI *SHELL_GET_MAN_FILENAME)(
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VOID
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);
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/**
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Runs a shell command on a given command line.
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The specific operation of a given shell command is specified in the UEFI Shell
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Specification 2.0, or in the source of the given command.
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Upon completion of the command run the shell protocol and environment variables
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may have been updated due to the operation.
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@param[in] ImageHandle The ImageHandle to the app, or NULL if
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the command built into shell.
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@param[in] SystemTable The pointer to the system table.
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@retval RETURN_SUCCESS The shell command was sucessful.
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@retval RETURN_UNSUPPORTED The command is not supported.
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**/
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typedef
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SHELL_STATUS
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(EFIAPI *SHELL_RUN_COMMAND)(
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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);
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/**
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Registers the handlers of type SHELL_RUN_COMMAND and
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SHELL_GET_MAN_FILENAME for each shell command.
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If the ShellSupportLevel is greater than the value of
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PcdShellSupportLevel, then return RETURN_UNSUPPORTED.
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Registers the the handlers specified by GetHelpInfoHandler and CommandHandler
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with the command specified by CommandString. If the command named by
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CommandString has already been registered, then return
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RETURN_ALREADY_STARTED.
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If there are not enough resources available to register the handlers, then
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RETURN_OUT_OF_RESOURCES is returned.
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If CommandString is NULL, then ASSERT().
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If GetHelpInfoHandler is NULL, then ASSERT().
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If CommandHandler is NULL, then ASSERT().
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If ProfileName is NULL, then ASSERT().
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@param[in] CommandString The pointer to the command name. This is the
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name to look for on the command line in
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the shell.
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@param[in] CommandHandler The pointer to a function that runs the
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specified command.
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@param[in] GetManFileName The pointer to a function that provides man
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filename.
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@param[in] ShellMinSupportLevel The minimum Shell Support Level which has this
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function.
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@param[in] ProfileName The profile name to require for support of this
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function.
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@param[in] CanAffectLE Indicates whether this command's return value
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can change the LASTERROR environment variable.
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@param[in] HiiHandle The handle of this command's HII entry.
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@param[in] ManFormatHelp The HII locator for the help text.
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@retval RETURN_SUCCESS The handlers were registered.
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@retval RETURN_OUT_OF_RESOURCES There are not enough resources available to
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register the shell command.
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@retval RETURN_UNSUPPORTED The ShellMinSupportLevel was higher than the
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currently allowed support level.
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@retval RETURN_ALREADY_STARTED The CommandString represents a command that
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is already registered. Only one handler set for
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a given command is allowed.
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@sa SHELL_GET_MAN_FILENAME
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@sa SHELL_RUN_COMMAND
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**/
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RETURN_STATUS
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EFIAPI
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ShellCommandRegisterCommandName (
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IN CONST CHAR16 *CommandString,
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IN SHELL_RUN_COMMAND CommandHandler,
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IN SHELL_GET_MAN_FILENAME GetManFileName,
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IN UINT32 ShellMinSupportLevel,
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IN CONST CHAR16 *ProfileName,
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IN CONST BOOLEAN CanAffectLE,
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IN CONST EFI_HANDLE HiiHandle,
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IN CONST EFI_STRING_ID ManFormatHelp
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);
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/**
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Checks if a command string has been registered for CommandString, and if so, it runs
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the previously registered handler for that command with the command line.
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If CommandString is NULL, then ASSERT().
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If Sections is specified, then each section name listed will be compared in a case sensitive
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manner to the section names described in Appendix B UEFI Shell 2.0 Specification. If the section exists,
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it is appended to the returned help text. If the section does not exist, no
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information is returned. If Sections is NULL, then all help text information
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available is returned.
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@param[in] CommandString The pointer to the command name. This is the name
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found on the command line in the shell.
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@param[in, out] RetVal The pointer to the return value from the command handler.
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@param[in, out] CanAffectLE Indicates whether this command's return value
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needs to be placed into LASTERROR environment variable.
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@retval RETURN_SUCCESS The handler was run.
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@retval RETURN_NOT_FOUND The CommandString did not match a registered
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command name.
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@sa SHELL_RUN_COMMAND
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**/
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RETURN_STATUS
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EFIAPI
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ShellCommandRunCommandHandler (
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IN CONST CHAR16 *CommandString,
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IN OUT SHELL_STATUS *RetVal,
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IN OUT BOOLEAN *CanAffectLE OPTIONAL
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);
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/**
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Checks if a command string has been registered for CommandString, and if so, it
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returns the MAN filename specified for that command.
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If CommandString is NULL, then ASSERT().
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@param[in] CommandString The pointer to the command name. This is the name
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found on the command line in the shell.
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@retval NULL The CommandString was not a registered command.
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@retval other The name of the MAN file.
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@sa SHELL_GET_MAN_FILENAME
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**/
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CONST CHAR16*
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EFIAPI
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ShellCommandGetManFileNameHandler (
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IN CONST CHAR16 *CommandString
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);
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typedef struct {
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LIST_ENTRY Link;
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CHAR16 *CommandString;
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} COMMAND_LIST;
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/**
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Get the list of all available shell internal commands. This is a linked list,
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via the LIST_ENTRY structure. Enumerate through it using the BaseLib linked
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list functions. Do not modify the values.
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@param[in] Sort TRUE to alphabetically sort the values first. FALSE otherwise.
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@return A linked list of all available shell commands.
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**/
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CONST COMMAND_LIST*
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EFIAPI
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ShellCommandGetCommandList (
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IN CONST BOOLEAN Sort
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);
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typedef struct {
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LIST_ENTRY Link;
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CHAR16 *CommandString;
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CHAR16 *Alias;
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} ALIAS_LIST;
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/**
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Registers aliases to be set as part of the initialization of the shell application.
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If Command is NULL, then ASSERT().
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If Alias is NULL, then ASSERT().
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@param[in] Command The pointer to the Command.
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@param[in] Alias The pointer to Alias.
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@retval RETURN_SUCCESS The handlers were registered.
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@retval RETURN_OUT_OF_RESOURCES There are not enough resources available to
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register the shell command.
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**/
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RETURN_STATUS
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EFIAPI
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ShellCommandRegisterAlias (
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IN CONST CHAR16 *Command,
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IN CONST CHAR16 *Alias
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);
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/**
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Get the list of all shell alias commands. This is a linked list,
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via LIST_ENTRY structure. Enumerate through it using the BaseLib linked
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list functions. Do not modify the values.
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@return A linked list of all requested shell aliases.
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**/
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CONST ALIAS_LIST*
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EFIAPI
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ShellCommandGetInitAliasList (
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VOID
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);
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/**
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Determine if a given alias is on the list of built in aliases.
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@param[in] Alias The alias to test for.
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@retval TRUE The alias is a built in alias.
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@retval FALSE The alias is not a built in alias.
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**/
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BOOLEAN
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EFIAPI
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ShellCommandIsOnAliasList (
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IN CONST CHAR16 *Alias
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);
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/**
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Checks if a command is already on the list.
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@param[in] CommandString The command string to check for on the list.
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@retval TRUE CommandString represents a registered command.
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@retval FALSE CommandString does not represent a registered command.
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**/
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BOOLEAN
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EFIAPI
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ShellCommandIsCommandOnList (
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IN CONST CHAR16 *CommandString
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);
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/**
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Get the help text for a command.
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@param[in] CommandString The command name.
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@retval NULL No help text was found.
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@return The string of the help text. The caller required to free.
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**/
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CHAR16*
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EFIAPI
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ShellCommandGetCommandHelp (
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IN CONST CHAR16 *CommandString
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);
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/**
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Function to make sure that the above pointers are valid.
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**/
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EFI_STATUS
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EFIAPI
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CommandInit (
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VOID
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);
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/**
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Function to determine current state of ECHO. Echo determines if lines from scripts
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and ECHO commands are enabled.
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@retval TRUE Echo is currently enabled.
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@retval FALSE Echo is currently disabled.
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**/
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BOOLEAN
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EFIAPI
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ShellCommandGetEchoState (
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VOID
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);
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/**
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Function to set current state of ECHO. Echo determines if lines from scripts
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and ECHO commands are enabled.
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@param[in] State TRUE to enable Echo, FALSE otherwise.
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**/
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VOID
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EFIAPI
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ShellCommandSetEchoState (
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IN BOOLEAN State
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);
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/**
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Indicate that the current shell or script should exit.
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@param[in] ScriptOnly TRUE if exiting a script; FALSE otherwise.
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@param[in] ErrorCode The 64 bit error code to return.
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**/
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VOID
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EFIAPI
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ShellCommandRegisterExit (
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IN BOOLEAN ScriptOnly,
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IN CONST UINT64 ErrorCode
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);
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/**
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Retrieve the Exit code.
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@return the value passed into RegisterExit.
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**/
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UINT64
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EFIAPI
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ShellCommandGetExitCode (
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VOID
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);
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/**
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Retrieve the Exit indicator.
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@retval TRUE Exit was indicated.
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@retval FALSE Exit was not indicated.
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**/
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BOOLEAN
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EFIAPI
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ShellCommandGetExit (
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VOID
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);
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/**
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Retrieve the Exit script indicator.
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If ShellCommandGetExit returns FALSE, then the return from this is undefined.
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@retval TRUE ScriptOnly was indicated.
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@retval FALSE ScriptOnly was not indicated.
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**/
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BOOLEAN
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EFIAPI
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ShellCommandGetScriptExit (
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VOID
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);
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typedef struct {
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LIST_ENTRY Link; ///< List enumerator items.
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UINTN Line; ///< What line of the script file this was on.
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CHAR16 *Cl; ///< The original command line.
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VOID *Data; ///< The data structure format dependant upon Command. (not always used)
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BOOLEAN Reset; ///< Reset the command (it must be treated like a initial run (but it may have data already))
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} SCRIPT_COMMAND_LIST;
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typedef struct {
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CHAR16 *ScriptName; ///< The filename of this script.
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CHAR16 **Argv; ///< The parmameters to the script file.
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UINTN Argc; ///< The count of parameters.
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LIST_ENTRY CommandList; ///< The script converted to a list of commands (SCRIPT_COMMAND_LIST objects).
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SCRIPT_COMMAND_LIST *CurrentCommand; ///< The command currently being operated. If !=NULL must be a member of CommandList.
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LIST_ENTRY SubstList; ///< A list of current script loop alias' (ALIAS_LIST objects) (Used for the for %-based replacement).
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} SCRIPT_FILE;
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/**
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Function to return a pointer to the currently running script file object.
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@retval NULL A script file is not currently running.
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@return A pointer to the current script file object.
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**/
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SCRIPT_FILE*
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EFIAPI
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ShellCommandGetCurrentScriptFile (
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VOID
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);
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/**
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Function to set a new script as the currently running one.
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This function will correctly stack and unstack nested scripts.
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@param[in] Script The pointer to new script information structure. If NULL,
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it removes and de-allocates the topmost Script structure.
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@return A pointer to the current running script file after this
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change. It is NULL if removing the final script.
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**/
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SCRIPT_FILE*
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EFIAPI
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ShellCommandSetNewScript (
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IN SCRIPT_FILE *Script OPTIONAL
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);
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/**
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Function to cleanup all memory from a SCRIPT_FILE structure.
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@param[in] Script The pointer to the structure to cleanup.
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**/
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VOID
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EFIAPI
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DeleteScriptFileStruct (
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IN SCRIPT_FILE *Script
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);
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/**
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Function to get the current Profile string.
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This is used to retrieve what profiles were installed.
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@retval NULL There are no installed profiles.
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@return A semicolon-delimited list of profiles.
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**/
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CONST CHAR16 *
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EFIAPI
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ShellCommandGetProfileList (
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VOID
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);
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typedef enum {
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MappingTypeFileSystem,
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MappingTypeBlockIo,
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MappingTypeMax
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} SHELL_MAPPING_TYPE;
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/**
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Function to generate the next default mapping name.
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If the return value is not NULL then it must be callee freed.
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@param Type What kind of mapping name to make.
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@retval NULL a memory allocation failed.
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@return a new map name string
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**/
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CHAR16*
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EFIAPI
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ShellCommandCreateNewMappingName(
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IN CONST SHELL_MAPPING_TYPE Type
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);
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/**
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Function to initialize the table for creating consistent map names.
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@param[out] Table The pointer to pointer to pointer to DevicePathProtocol object.
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@retval EFI_SUCCESS The table was created successfully.
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**/
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EFI_STATUS
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EFIAPI
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ShellCommandConsistMappingInitialize (
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EFI_DEVICE_PATH_PROTOCOL ***Table
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);
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/**
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Function to uninitialize the table for creating consistent map names.
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The parameter must have been received from ShellCommandConsistMappingInitialize.
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@param[out] Table The pointer to pointer to DevicePathProtocol object.
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@retval EFI_SUCCESS The table was deleted successfully.
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**/
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EFI_STATUS
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EFIAPI
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ShellCommandConsistMappingUnInitialize (
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EFI_DEVICE_PATH_PROTOCOL **Table
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);
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/**
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Create a consistent mapped name for the device specified by DevicePath
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based on the Table.
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This must be called after ShellCommandConsistMappingInitialize() and
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before ShellCommandConsistMappingUnInitialize() is called.
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@param[in] DevicePath The pointer to the dev path for the device.
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@param[in] Table The Table of mapping information.
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@retval NULL A consistent mapped name could not be created.
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@return A pointer to a string allocated from pool with the device name.
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**/
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CHAR16*
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EFIAPI
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ShellCommandConsistMappingGenMappingName (
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
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IN EFI_DEVICE_PATH_PROTOCOL **Table
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);
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/**
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Function to search the list of mappings for the first matching node on the
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list based on the MapKey.
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@param[in] MapKey The pointer to the string key to search for in the map.
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@return the node on the list.
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**/
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SHELL_MAP_LIST*
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EFIAPI
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ShellCommandFindMapItem (
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IN CONST CHAR16 *MapKey
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);
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/**
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Function to add a map node to the list of map items and update the "path" environment variable (optionally).
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If Path is TRUE (during initialization only), the path environment variable will also be updated to include
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default paths on the new map name...
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Path should be FALSE when this function is called from the protocol SetMap function.
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@param[in] Name The human readable mapped name.
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@param[in] DevicePath The Device Path for this map.
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@param[in] Flags The Flags attribute for this map item.
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@param[in] Path TRUE to update path, FALSE to skip this step (should only be TRUE during initialization).
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@retval EFI_SUCCESS The addition was sucessful.
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@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
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@retval EFI_INVALID_PARAMETER A parameter was invalid.
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**/
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EFI_STATUS
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EFIAPI
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ShellCommandAddMapItemAndUpdatePath(
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IN CONST CHAR16 *Name,
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,
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IN CONST UINT64 Flags,
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IN CONST BOOLEAN Path
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);
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/**
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Creates the default map names for each device path in the system with
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a protocol depending on the Type.
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|
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Also sets up the default path environment variable if Type is FileSystem.
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|
|
@retval EFI_SUCCESS All map names were created sucessfully.
|
|
@retval EFI_NOT_FOUND No protocols were found in the system.
|
|
@return Error returned from gBS->LocateHandle().
|
|
|
|
@sa LocateHandle
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellCommandCreateInitialMappingsAndPaths(
|
|
VOID
|
|
);
|
|
|
|
/**
|
|
Add mappings for any devices without one. Do not change any existing maps.
|
|
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellCommandUpdateMapping (
|
|
VOID
|
|
);
|
|
|
|
/**
|
|
Converts a SHELL_FILE_HANDLE to an EFI_FILE_PROTOCOL*.
|
|
|
|
@param[in] Handle The SHELL_FILE_HANDLE to convert.
|
|
|
|
@return a EFI_FILE_PROTOCOL* representing the same file.
|
|
**/
|
|
EFI_FILE_PROTOCOL*
|
|
EFIAPI
|
|
ConvertShellHandleToEfiFileProtocol(
|
|
IN CONST SHELL_FILE_HANDLE Handle
|
|
);
|
|
|
|
/**
|
|
Remove a SHELL_FILE_HANDLE frmo the list of SHELL_FILE_HANDLES.
|
|
|
|
@param[in] Handle The SHELL_FILE_HANDLE to remove.
|
|
|
|
@retval TRUE The item was removed.
|
|
@retval FALSE The item was not found.
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
ShellFileHandleRemove(
|
|
IN CONST SHELL_FILE_HANDLE Handle
|
|
);
|
|
|
|
/**
|
|
Converts a EFI_FILE_PROTOCOL* to an SHELL_FILE_HANDLE.
|
|
|
|
@param[in] Handle The pointer to EFI_FILE_PROTOCOL to convert.
|
|
@param[in] Path The path to the file for verification.
|
|
|
|
@return a SHELL_FILE_HANDLE representing the same file.
|
|
**/
|
|
SHELL_FILE_HANDLE
|
|
EFIAPI
|
|
ConvertEfiFileProtocolToShellHandle(
|
|
IN CONST EFI_FILE_PROTOCOL *Handle,
|
|
IN CONST CHAR16 *Path
|
|
);
|
|
|
|
/**
|
|
Find the path that was logged with the specified SHELL_FILE_HANDLE.
|
|
|
|
@param[in] Handle The SHELL_FILE_HANDLE to query on.
|
|
|
|
@return A pointer to the path for the file.
|
|
**/
|
|
CONST CHAR16*
|
|
EFIAPI
|
|
ShellFileHandleGetPath(
|
|
IN CONST SHELL_FILE_HANDLE Handle
|
|
);
|
|
|
|
|
|
/**
|
|
Function to determine if a SHELL_FILE_HANDLE is at the end of the file.
|
|
|
|
This will NOT work on directories.
|
|
|
|
If Handle is NULL, then ASSERT.
|
|
|
|
@param[in] Handle the file handle
|
|
|
|
@retval TRUE the position is at the end of the file
|
|
@retval FALSE the position is not at the end of the file
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
ShellFileHandleEof(
|
|
IN SHELL_FILE_HANDLE Handle
|
|
);
|
|
|
|
typedef struct {
|
|
LIST_ENTRY Link;
|
|
void *Buffer;
|
|
} BUFFER_LIST;
|
|
|
|
/**
|
|
Frees any BUFFER_LIST defined type.
|
|
|
|
@param[in] List The pointer to the list head.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
FreeBufferList (
|
|
IN BUFFER_LIST *List
|
|
);
|
|
|
|
/**
|
|
Function printing hex output to the console.
|
|
|
|
@param[in] Indent Number of spaces to indent.
|
|
@param[in] Offset Offset to start with.
|
|
@param[in] DataSize Length of data.
|
|
@param[in] UserData Pointer to some data.
|
|
**/
|
|
VOID
|
|
DumpHex (
|
|
IN UINTN Indent,
|
|
IN UINTN Offset,
|
|
IN UINTN DataSize,
|
|
IN VOID *UserData
|
|
);
|
|
|
|
/**
|
|
Dump HEX data into buffer.
|
|
|
|
@param[in] Buffer HEX data to be dumped in Buffer.
|
|
@param[in] Indent How many spaces to indent the output.
|
|
@param[in] Offset The offset of the printing.
|
|
@param[in] DataSize The size in bytes of UserData.
|
|
@param[in] UserData The data to print out.
|
|
**/
|
|
CHAR16*
|
|
CatSDumpHex (
|
|
IN CHAR16 *Buffer,
|
|
IN UINTN Indent,
|
|
IN UINTN Offset,
|
|
IN UINTN DataSize,
|
|
IN VOID *UserData
|
|
);
|
|
#endif //_SHELL_COMMAND_LIB_
|