diff options
| author | jcarsey <jcarsey@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-05-07 18:46:18 +0000 |
|---|---|---|
| committer | jcarsey <jcarsey@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-05-07 18:46:18 +0000 |
| commit | 94b17fa1b669e55482efc7a8faec8c95e05d86ec (patch) | |
| tree | 446d0922f2dbe46a22af84b9cd8e8c00e4a7b1a4 /ShellPkg/Include/Protocol/EfiShellEnvironment2.h | |
| parent | 85a9032180adb8c489c44ab408dcc539d95d24ec (diff) | |
| download | edk2-platforms-94b17fa1b669e55482efc7a8faec8c95e05d86ec.tar.xz | |
First (Alpha) release of ShellPkg
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8256 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ShellPkg/Include/Protocol/EfiShellEnvironment2.h')
| -rw-r--r-- | ShellPkg/Include/Protocol/EfiShellEnvironment2.h | 976 |
1 files changed, 976 insertions, 0 deletions
diff --git a/ShellPkg/Include/Protocol/EfiShellEnvironment2.h b/ShellPkg/Include/Protocol/EfiShellEnvironment2.h new file mode 100644 index 0000000000..537b916071 --- /dev/null +++ b/ShellPkg/Include/Protocol/EfiShellEnvironment2.h @@ -0,0 +1,976 @@ +/** @file
+ Defines for EFI shell environment 2 ported to EDK II build environment.
+
+Copyright (c) 2005, 2009 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.
+
+**/
+
+
+#ifndef _SHELLENV2_H_
+#define _SHELLENV2_H_
+
+#include <Protocol\SimpleTextIn.h>
+#include <Protocol\SimpleTextOut.h>
+#include <Protocol\EfiShellInterface.h>
+
+#define DEFAULT_INIT_ROW 1
+#define DEFAULT_AUTO_LF FALSE
+
+
+/**
+ this function is a prototype for a function that dumps information on a protocol
+ to a given location. the location is dependant on the implementation. This is
+ used when programatically adding shell commands.
+
+ @param Handle the handle the protocol is on
+ @param Interface the interface to the protocol
+
+**/
+typedef
+VOID
+(EFIAPI *SHELLENV_DUMP_PROTOCOL_INFO) (
+ IN EFI_HANDLE Handle,
+ IN VOID *Interface
+ );
+
+/**
+ this function is a prototype foe each command internal to the EFI shell
+ implementation. the specific command depends on the implementation. This is
+ used when programatically adding shell commands.
+
+ @param ImageHandle The handle to the binary shell
+ @param SystemTable pointer to the system table.
+
+ @retval EFI_SUCCESS the command ran to completion
+ @return other an error ocurred. any error is possible
+ depending on the implementation of the shell
+ command.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SHELLENV_INTERNAL_COMMAND) (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ );
+
+/**
+ This function is a prototype for one that gets a help string for a given command.
+ This is used when programatically adding shell commands. Upon successful return
+ the memory allocated is up to the caller to free.
+
+ @param Str pointer to pointer to string to display for help.
+
+ @retval EFI_SUCCESS the help string is in the parameter Str.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SHELLCMD_GET_LINE_HELP) (
+ IN OUT CHAR16 **Str
+ );
+
+/**
+* Structure returned from functions that open multiple files
+**/
+typedef struct {
+ UINT32 Signature; ///< SHELL_FILE_ARG_SIGNATURE
+ EFI_LIST_ENTRY Link; ///< linked list helper
+ EFI_STATUS Status; ///< File's status
+
+ EFI_FILE_HANDLE Parent; ///< what is the Parent file of this file
+ UINT64 OpenMode; ///< how was the file opened
+ CHAR16 *ParentName; ///< string representation of parent
+ EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath; ///< DevicePath for Parent
+
+ CHAR16 *FullName; ///< path and file name for this file
+ CHAR16 *FileName; ///< file name for this file
+
+ EFI_FILE_HANDLE Handle; ///< handle to this file
+ EFI_FILE_INFO *Info; ///< pointer to file info for this file
+} SHELL_FILE_ARG;
+
+/// signature for SHELL_FILE_ARG
+#define SHELL_FILE_ARG_SIGNATURE SIGNATURE_32 ('g', 'r', 'a', 'f')
+
+/**
+* GUID for the shell environment2 and shell environment
+**/
+#define SHELL_ENVIRONMENT_PROTOCOL_GUID \
+ { \
+ 0x47c7b221, 0xc42a, 0x11d2, 0x8e, 0x57, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b \
+ }
+
+/**
+* GUID for the shell environment2 extension (main GUID same as shell environment)
+**/
+#define EFI_SE_EXT_SIGNATURE_GUID \
+ { \
+ 0xd2c18636, 0x40e5, 0x4eb5, {0xa3, 0x1b, 0x36, 0x69, 0x5f, 0xd4, 0x2c, 0x87} \
+ }
+
+#define EFI_SHELL_MAJOR_VER 0x00000001 ///< Major version of the EFI_SHELL_ENVIRONMENT2
+#define EFI_SHELL_MINOR_VER 0x00000000 ///< Minor version of the EFI_SHELL_ENVIRONMENT2
+
+/**
+ execute a command line
+
+ this function will run the CommandLine. This includes loading any required images,
+ parsing any requires scripts, and it DebugOutput is TRUE printing errors
+ encountered directly to the screen.
+
+ @param ParentImageHandle Handle of image executing this operation
+ @param CommandLine string command line to execute
+ @param DebugOutput TRUE indicates that errors should be printed directly.
+ FALSE supresses error messages.
+
+ @retval EFI_SUCCESS the command line executed and completed.
+ @retval EFI_ABORTED the operation did not complete due to abort.
+ @retval EFI_INVALID_PARAMETER A parameter did not have a valid value.
+ @retval EFI_OUT_OF_RESOURCES A required memory allocation failed.
+
+@sa HandleProtocol
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SHELLENV_EXECUTE) (
+ IN EFI_HANDLE *ParentImageHandle,
+ IN CHAR16 *CommandLine,
+ IN BOOLEAN DebugOutput
+ );
+
+/**
+ this function returns a shell environment variable value.
+
+ @param Name pointer to the string with the shell environment
+ variables name
+
+ @retval NULL the shell environment variable's value could not be found
+ @retval !NULL the value of the shell environment variable Name
+
+**/
+typedef
+CHAR16 *
+(EFIAPI *SHELLENV_GET_ENV) (
+ IN CHAR16 *Name
+ );
+
+/**
+ this function returns a shell environment map value.
+
+ @param Name pointer to the string with the shell environment
+ map name
+
+ @retval NULL the shell environment map's value could not be found
+ @retval !NULL the value of the shell environment map Name
+
+**/
+typedef
+CHAR16 *
+(EFIAPI *SHELLENV_GET_MAP) (
+ IN CHAR16 *Name
+ );
+
+/**
+ This function will add an internal command to the shell interface.
+
+ This will allocate all required memory, put the new command on the command
+ list in the correct location.
+
+ @param Handler the handler function to call when the command gets called
+ @param CmdStr The command name
+ @param GetLineHelp function to call of get help for this command
+
+ @retval EFI_SUCCESS the command is now part of the command list
+ @retval EFI_OUT_OF_RESOURCES a memory allocation failed.
+ @sa SHELLENV_INTERNAL_COMMAND
+ @sa SHELLCMD_GET_LINE_HELP
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SHELLENV_ADD_CMD) (
+ IN SHELLENV_INTERNAL_COMMAND Handler,
+ IN CHAR16 *Cmd,
+ IN SHELLCMD_GET_LINE_HELP GetLineHelp
+ );
+
+/**
+ Internal interface to add protocol handlers.
+
+ This function is for internal shell use only. This is how protocol handlers are added.
+ This will get the current protocol info and add the new info or update existing info
+ and then resave the info.
+
+ @param SaveId save this change as an EFI variable
+ @param Protocol the protocol's GUID
+ @param DumpToken The function pointer to dump token function or
+ NULL
+ @param DumpInfo The function pointer to dump infomation function
+ or NULL
+ @param IdString The english name of the protocol
+**/
+typedef
+VOID
+(EFIAPI *SHELLENV_ADD_PROT) (
+ IN EFI_GUID *Protocol,
+ IN SHELLENV_DUMP_PROTOCOL_INFO DumpToken OPTIONAL,
+ IN SHELLENV_DUMP_PROTOCOL_INFO DumpInfo OPTIONAL,
+ IN CHAR16 *IdString
+ );
+
+/**
+ this function finds a protocol handle by a GUID.
+
+ This function will check for already known protocols by GUID and if one is
+ found it will return the name of that protocol. if no name is found and
+ GenId is TRUE it will generate ths string.
+
+ @param Protocol the GUID of the protocol to look for.
+ @param GenId whether to generate a name string if its not found.
+
+ @return !NULL the Name of the protocol.
+ @retval NULL the Name was not found and GenId was not TRUE.
+**/
+typedef
+CHAR16*
+(EFIAPI *SHELLENV_GET_PROT) (
+ IN EFI_GUID *Protocol,
+ IN BOOLEAN GenId
+ );
+
+/**
+ this function returns the current directory on a given device
+
+ If DeviceName is specified, then return the current shell directory on that
+ device. If DeviceName is NULL, then return the current directory on the
+ current device. The caller us responsible to free the returned string when
+ no londer required.
+
+ @param DeviceName the name of the device to get the current
+ directory on or NULL for current device
+
+ @return The current directory on the current or specified device.
+
+**/
+typedef
+CHAR16*
+(EFIAPI *SHELLENV_CUR_DIR) (
+ IN CHAR16 *DeviceName OPTIONAL
+ );
+
+/**
+ this function will open a group of files that match the Arg path, including
+ support for wildcard characters ('?' and '*') in the Arg path. if there are
+ any wildcard characters in the path this function will find any and all files
+ that match the wildcards. the return is a double linked list based on the
+ EFI_LIST_ENTRY linked list structure. use this in conjunction with the
+ SHELL_FILE_ARG_SIGNATURE to get the SHELL_FILE_ARG structures that are returned.
+ The memory allocated by the callee for this list is freed by making a call to
+ SHELLENV_FREE_FILE_LIST.
+
+ @param Arg pointer Path to files to open
+ @param ListHead pointer to allocated and initialized list head
+ upon which to append all the opened file structures.
+
+ @retval EFI_SUCCESS 1 or more files was opened and a struct of each file's
+ information was appended to ListHead.
+ @retval EFI_OUT_OF_RESOURCES a memory allocation failed.
+ @retval EFI_NOT_FOUND no matching files could be found.
+ @sa SHELLENV_FREE_FILE_LIST
+**/typedef
+EFI_STATUS
+(EFIAPI *SHELLENV_FILE_META_ARG) (
+ IN CHAR16 *Arg,
+ IN OUT EFI_LIST_ENTRY *ListHead
+ );
+
+/**
+ this frees all of the nodes under the ListHead, but not ListHead itself.
+
+ @param ListHead Pointer to list to free all nodes of.
+
+ @retval EFI_SUCCESS always returned.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SHELLENV_FREE_FILE_LIST) (
+ IN OUT EFI_LIST_ENTRY *ListHead
+ );
+
+/**
+ this function creates a new instance of the ShellInterface protocol for use on
+ the ImageHandle.
+
+ This function is for internal shell usage. this will allocate and then populate
+ EFI_SHELL_INTERFACE protocol. it is the caller's responsibility to free the
+ memory.
+
+ @param ImageHandle the handle which will use the new ShellInterface
+ protocol.
+
+ @return the newly allocated shell interface protocol.
+
+**/
+typedef
+EFI_SHELL_INTERFACE*
+(EFIAPI *SHELLENV_NEW_SHELL) (
+ IN EFI_HANDLE ImageHandle
+ );
+
+/**
+ this function determins whether a script file is currently being processed.
+
+ a script file (.nsh file) can contain a series of commands and this is useful to
+ know for some shell commands whether they are being run manually or as part of a
+ script.
+
+ @retval TRUE A script file is being processed
+ @return FALSE A script file is not being processed
+**/
+typedef
+BOOLEAN
+(EFIAPI *SHELLENV_BATCH_IS_ACTIVE) (
+ IN VOID
+ );
+
+/**
+ This is an internal shell function to free any and all allocated resources.
+ This should be called just closing the shell.
+**/
+typedef
+VOID
+(EFIAPI *SHELLENV_FREE_RESOURCES) (
+ VOID
+ );
+
+/**
+ This function enables the page break mode.
+
+ This mode causes the output to pause after each complete screen to enable a
+ user to more easily read it. if AutoWrap is TRUE then rows with too many
+ characters will be chopped and divided into 2 rows. if FALSE then rows with
+ too many characters may not be fully visible to the user on the screen.
+
+ @param StartRow the row number to start this on.
+ @param AutoWrap whether to auto wrap rows that are
+**/
+typedef
+VOID
+(EFIAPI *SHELLENV_ENABLE_PAGE_BREAK) (
+ IN INT32 StartRow,
+ IN BOOLEAN AutoWrap
+ );
+
+/**
+ This function disables the page break mode.
+
+ disabling this causes the output to print out exactly as coded with no breaks
+ for readability.
+**/
+typedef
+VOID
+(EFIAPI *SHELLENV_DISABLE_PAGE_BREAK) (
+ IN VOID
+ );
+
+/**
+ Get the status of the page break output mode.
+
+ @retval FALSE page break output mode is not enabled
+ @retval TRUE page break output mode is enabled
+**/
+typedef
+BOOLEAN
+(EFIAPI *SHELLENV_GET_PAGE_BREAK) (
+ IN VOID
+ );
+
+/**
+ this function sets the keys to filter for for the console in. the valid
+ values to set are:
+
+ #define EFI_OUTPUT_SCROLL 0x00000001
+ #define EFI_OUTPUT_PAUSE 0x00000002
+ #define EFI_EXECUTION_BREAK 0x00000004
+
+ @param KeyFilter The new key filter to use.
+**/
+typedef
+VOID
+(EFIAPI *SHELLENV_SET_KEY_FILTER) (
+ IN UINT32 KeyFilter
+ );
+
+/**
+ this function gets the keys to filter for for the console in. the valid
+ values to get are:
+
+ #define EFI_OUTPUT_SCROLL 0x00000001
+ #define EFI_OUTPUT_PAUSE 0x00000002
+ #define EFI_EXECUTION_BREAK 0x00000004
+
+ @retval the current filter mask.
+**/
+typedef
+UINT32
+(EFIAPI *SHELLENV_GET_KEY_FILTER) (
+ IN VOID
+ );
+
+/**
+ this function determins if the shell application should break.
+
+ This is used to inform a shell application that a break condition has been
+ initiated. long loops should check this to prevent delays to the break.
+
+ @retval TRUE a break has been signaled. the application
+ should exit with EFI_ABORTED as soon as possible.
+ @retval FALSE continue as normal.
+**/
+typedef
+BOOLEAN
+(EFIAPI *SHELLENV_GET_EXECUTION_BREAK) (
+ IN VOID
+ );
+
+/**
+ This is an internal-shell function used to increment the shell nesting level.
+
+**/
+typedef
+VOID
+(EFIAPI *SHELLENV_INCREMENT_SHELL_NESTING_LEVEL) (
+ IN VOID
+ );
+
+/**
+ This is an internal-shell function used to decrement the shell nesting level.
+**/
+typedef
+VOID
+(EFIAPI *SHELLENV_DECREMENT_SHELL_NESTING_LEVEL) (
+ IN VOID
+ );
+
+/**
+ this function determins if the caller is running under the root shell.
+
+ @retval TRUE The caller is running under the root shell
+ @retval FALSE The caller is not running under the root shell
+
+**/
+typedef
+BOOLEAN
+(EFIAPI *SHELLENV_IS_ROOT_SHELL) (
+ IN VOID
+ );
+
+/**
+ Close the console proxy to restore the original console.
+
+ This is an internal shell function to handle shell cascading. it restores the
+ original set of console protocols.
+
+ @param ConInHandle The handle of ConIn.
+ @param ConIn pointer to the location to return the pointer to
+ the original console input.
+ @param ConOutHandle The handle of ConOut
+ @param ConOut pointer to the location to return the pointer to
+ the original console output.
+**/
+typedef
+VOID
+(EFIAPI *SHELLENV_CLOSE_CONSOLE_PROXY) (
+ IN EFI_HANDLE ConInHandle,
+ IN OUT EFI_SIMPLE_TEXT_INPUT_PROTOCOL **ConIn,
+ IN EFI_HANDLE ConOutHandle,
+ IN OUT EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL **ConOut
+ );
+
+//
+// declarations of handle enumerator
+//
+/**
+ For ease of use the shell maps handle #'s to short numbers.
+ This is only done on request for various internal commands and the references
+ are immediately freed when the internal command completes.
+**/
+typedef
+VOID
+(EFIAPI *INIT_HANDLE_ENUMERATOR) (
+ VOID
+ );
+
+/**
+ this is an internal shell function to enumerate the handle database.
+
+ this function gets the next handle in the handle database. if no handles are
+ found EFI_NOT_FOUND is returned. if the previous Handle was the last handle
+ it is set to NULL before returning.
+
+ this must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
+
+ @param Handle pointer to pointer to Handle. will be set
+ on a sucessful return.
+
+ @retval EFI_SUCCESS the next handle in the handle database is *Handle
+ @retval EFI_NOT_FOUND there is not another handle.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *NEXT_HANDLE) (
+ IN OUT EFI_HANDLE **Handle
+ );
+
+/**
+ this is an internal shell function to enumerate the handle database.
+
+ this function skips the next SkipNum handles in the handle database. If there
+ are not enough handles left to skip that many EFI_ACCESS_DENIED is returned and
+ no skip is performed.
+
+ this must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
+
+ @param SkipNum how many handles to skip
+
+ @retval EFI_SUCCESS the next handle in the handle database is *Handle
+ @retval EFI_ACCESS_DENIED there are not SkipNum handles left in the database
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SKIP_HANDLE) (
+ IN UINTN SkipNum
+ );
+
+/**
+ this is an internal shell function to enumerate the handle database.
+
+ this function resets the the handle database so that NEXT_HANDLE and SKIP_HANDLE
+ will start from EnumIndex on the next call.
+
+ this must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
+
+ @param EnumIndex where to start.
+
+ @retval the number of handles either read out or skipped before this reset.
+**/
+typedef
+UINTN
+(EFIAPI *RESET_HANDLE_ENUMERATOR) (
+ IN UINTN EnumIndex
+ );
+
+/**
+ this is an internal shell function to enumerate the handle database.
+
+ this must be called after INIT_HANDLE_ENUMERATOR.
+
+ this function releases all memory and resources associated with the handle database.
+ after this no other handle enumerator functions except INIT_HANDLE_ENUMERATOR will
+ function properly.
+**/
+typedef
+VOID
+(EFIAPI *CLOSE_HANDLE_ENUMERATOR) (
+ VOID
+ );
+
+/**
+ this is an internal shell function to enumerate the handle database.
+
+ this function returns the number of handles in the handle database.
+
+ this must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
+
+ @retval the number of handles in the handle database.
+**/
+typedef
+UINTN
+(EFIAPI *GET_NUM) (
+ VOID
+ );
+
+/**
+Handle Enumerator structure
+**/
+typedef struct {
+ INIT_HANDLE_ENUMERATOR Init; ///< pointer to INIT_HANDLE_ENUMERATOR function
+ NEXT_HANDLE Next; ///< pointer to NEXT_HANDLE function
+ SKIP_HANDLE Skip; ///< pointer to SKIP_HANDLE function
+ RESET_HANDLE_ENUMERATOR Reset; ///< pointer to RESET_HANDLE_ENUMERATOR function
+ CLOSE_HANDLE_ENUMERATOR Close; ///< pointer to CLOSE_HANDLE_ENUMERATOR function
+ GET_NUM GetNum; ///< pointer to GET_NUM function
+} HANDLE_ENUMERATOR;
+/**
+ signature for the PROTOCOL_INFO structure
+**/
+#define PROTOCOL_INFO_SIGNATURE SIGNATURE_32 ('s', 'p', 'i', 'n')
+/**
+ PROTOCOL_INFO structure for protocol enumerator functions.
+
+**/
+typedef struct {
+ UINTN Signature; ///< PROTOCOL_INFO_SIGNATURE
+ EFI_LIST_ENTRY Link; ///< standard lined list helper member
+ //
+ // parsing info for the protocol
+ //
+ EFI_GUID ProtocolId; ///< GUID for the protocol
+ CHAR16 *IdString; ///< Name of the protocol
+ SHELLENV_DUMP_PROTOCOL_INFO DumpToken; ///< pointer to DumpToken function for the protocol
+ SHELLENV_DUMP_PROTOCOL_INFO DumpInfo; ///< pointer to DumpInfo function for the protocol
+ //
+ // database info on which handles are supporting this protocol
+ //
+ UINTN NoHandles; ///< how many handles produce this protocol
+ EFI_HANDLE *Handles; ///< array of handles
+
+} PROTOCOL_INFO;
+
+//
+// declarations of protocol info enumerator
+//
+/**
+ this is an internal shell function to initialize the protocol enumerator.
+
+ this must be called before NEXT_PROTOCOL_INFO, SKIP_PROTOCOL_INFO,
+ RESET_PROTOCOL_INFO_ENUMERATOR, and CLOSE_PROTOCOL_INFO_ENUMERATOR are
+ called.
+**/
+typedef
+VOID
+(EFIAPI *INIT_PROTOCOL_INFO_ENUMERATOR) (
+ VOID
+ );
+
+/**
+ this function is an internal shell function for enumeration of protocols.
+
+ This functiol will return the next protocol in the list. If this is called
+ immediately after initialization it will return the first. If this is called
+ immediately after reset it will return the protocol first again.
+
+ This cannot be called after CLOSE_PROTOCOL_INFO_ENUMERATOR, but it must be
+ called after INIT_PROTOCOL_INFO_ENUMERATOR.
+
+ @param ProtocolInfo pointer to pointer to protocol information structure.
+
+ @retval EFI_SUCCESS the next protocol's information was sucessfully returned.
+ If there were no more protocols NULL was returned.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *NEXT_PROTOCOL_INFO) (
+ IN OUT PROTOCOL_INFO **ProtocolInfo
+ );
+
+/**
+ this function is an internal shell function for enumeration of protocols.
+
+ This cannot be called after CLOSE_PROTOCOL_INFO_ENUMERATOR, but it must be
+ called after INIT_PROTOCOL_INFO_ENUMERATOR.
+
+ this function does nothing and always returns EFI_SUCCESS.
+
+ @retval EFI_SUCCESS always returned (see note).
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SKIP_PROTOCOL_INFO) (
+ IN UINTN SkipNum
+ );
+
+/**
+ this function is an internal shell function for enumeration of protocols.
+
+ This cannot be called after CLOSE_PROTOCOL_INFO_ENUMERATOR, but it must be
+ called after INIT_PROTOCOL_INFO_ENUMERATOR.
+
+ this function resets the list of protocols such that the next one in the
+ list is the begining of the list.
+**/
+typedef
+VOID
+(EFIAPI *RESET_PROTOCOL_INFO_ENUMERATOR) (
+ VOID
+ );
+
+
+/**
+ this function is an internal shell function for enumeration of protocols.
+
+ This must be called after INIT_PROTOCOL_INFO_ENUMERATOR. After this call
+ no protocol enumerator calls except INIT_PROTOCOL_INFO_ENUMERATOR may be made.
+
+ this function frees any memory or resources associated with the protocol
+ enumerator.
+**/
+typedef
+VOID
+(EFIAPI *CLOSE_PROTOCOL_INFO_ENUMERATOR) (
+ VOID
+ );
+
+/**
+* protocol enumerator structure of function pointers.
+**/
+typedef struct {
+ INIT_PROTOCOL_INFO_ENUMERATOR Init; ///< pointer to INIT_PROTOCOL_INFO_ENUMERATOR function
+ NEXT_PROTOCOL_INFO Next; ///< pointer to NEXT_PROTOCOL_INFO function
+ SKIP_PROTOCOL_INFO Skip; ///< pointer to SKIP_PROTOCOL_INFO function
+ RESET_PROTOCOL_INFO_ENUMERATOR Reset; ///< pointer to RESET_PROTOCOL_INFO_ENUMERATOR function
+ CLOSE_PROTOCOL_INFO_ENUMERATOR Close; ///< pointer to CLOSE_PROTOCOL_INFO_ENUMERATOR function
+} PROTOCOL_INFO_ENUMERATOR;
+
+/**
+ this function is used to retrieve a user-friendly display name for a handle.
+
+ If UseComponentName is TRUE then the component name protocol for this device
+ or it's parent device (if required) will be used to obtain the name of the
+ device. If UseDevicePath is TRUE it will get the human readable device path
+ and return that. If both are TRUE it will try to use component name first
+ and device path if that fails.
+
+ It will use either ComponentName or ComponentName2 protocol, depending on
+ what is present.
+
+ This function will furthur verify whether the handle in question produced either
+ EFI_DRIVER_CONFIGRATION_PROTOCOL or EFI_DRIVER_CONFIGURATION2_PROTOCOL and also
+ whether the handle in question produced either EFI_DRIVER_DIAGNOSTICS_PROTOCOL or
+ EFI_DRIVER_DIAGNOSTICS2_PROTOCOL.
+
+ Upon sucessful return the memory for *BestDeviceName is up to the caller to free.
+
+ @param DeviceHandle the device handle whose name is desired
+ @param UseComponentName whether to use the ComponentName protocol at all
+ @param UseDevicePath whether to use the DevicePath protocol at all
+ @param Language pointer to language string to use
+ @param BestDeviceName pointer to pointer to string allocated with the name
+ @param ConfigurationStatus pointer to status for opening a Configuration protocol
+ @param DiagnosticsStatus pointer to status for opening a Diagnostics protocol
+ @param Display Whether to Print this out to default Print location
+ @param Indent how many characters to indent the printing
+
+ @retval EFI_SUCCESS this function always returns EFI_SUCCESS
+**/
+typedef
+EFI_STATUS
+(EFIAPI *GET_DEVICE_NAME) (
+ EFI_HANDLE DeviceHandle,
+ BOOLEAN UseComponentName,
+ BOOLEAN UseDevicePath,
+ CHAR8 *Language,
+ CHAR16 **BestDeviceName,
+ EFI_STATUS *ConfigurationStatus,
+ EFI_STATUS *DiagnosticsStatus,
+ BOOLEAN Display,
+ UINTN Indent
+ );
+
+#define EFI_SHELL_COMPATIBLE_MODE_VER L"1.1.1" ///< string for lowest version this shell supports
+#define EFI_SHELL_ENHANCED_MODE_VER L"1.1.2" ///< string for highest version this shell supports
+
+/**
+ this function gets the shell mode as stored in the shell environment
+ "efishellmode". it will not fail.
+
+ @param Mode returns a string representing one of the
+ 2 supported modes of the shell.
+
+ @retval EFI_SUCCESS this function always returns success
+**/
+typedef
+EFI_STATUS
+(EFIAPI *GET_SHELL_MODE) (
+ OUT CHAR16 **Mode
+ );
+
+/**
+ Convert a file system style name to an file path
+
+ This function will convert a shell path name to a Device Path Protocol path.
+ This function will allocate any required memory for this operation and it
+ is the responsibility of the caller to free that memory when no longer required.
+
+ if anything prevents the complete conversion free any allocated memory and
+ return NULL.
+
+ @retval !NULL a pointer to the callee allocated Device Path
+ @retval NULL the operation could not be completed.
+**/
+typedef
+EFI_DEVICE_PATH_PROTOCOL*
+(EFIAPI *SHELLENV_NAME_TO_PATH) (
+ IN CHAR16 *Path
+ );
+
+/**
+ converts a device path into a file system map name.
+
+ if DevPath is NULL then ASSERT
+ This function looks through the shell environment map for a map whose device
+ path matches the DevPath parameter. If one is found the Name is returned via
+ Name parameter. If sucessful the caller must free the memory allocated for
+ Name.
+
+ this function will use the internal lock to prevent changes to the map during
+ the lookup operation.
+
+ @param DevPath The device path to search for a name for
+ @param ConsistMapping what state to verify map flag VAR_ID_CONSIST
+ @param Name on sucessful return the name of that device path
+
+ @retval EFI_SUCCESS the DevPath was found and the name returned
+ in Name.
+ @retval EFI_OUT_OF_RESOURCES A required memory allocation failed.
+ @retval EFI_UNSUPPORTED the DevPath was not found in the map
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SHELLENV_GET_FS_NAME) (
+ IN EFI_DEVICE_PATH_PROTOCOL * DevPath,
+ IN BOOLEAN ConsistMapping,
+ OUT CHAR16 **Name
+ );
+
+/**
+ this function will open a group of files that match the Arg path, but will not
+ support the wildcard characters ('?' and '*') in the Arg path. if there are
+ any wildcard characters in the path this function will return
+ EFI_INVALID_PARAMETER. the return is a double linked list based on the
+ EFI_LIST_ENTRY linked list structure. use this in conjunction with the
+ SHELL_FILE_ARG_SIGNATURE to get the SHELL_FILE_ARG structures that are returned.
+ The memory allocated by the callee for this list is freed by making a call to
+ SHELLENV_FREE_FILE_LIST.
+
+ @param Arg pointer Path to files to open
+ @param ListHead pointer to allocated and initialized list head
+ upon which to append all the opened file structures.
+
+ @retval EFI_SUCCESS 1 or more files was opened and a struct of each file's
+ information was appended to ListHead.
+ @retval EFI_OUT_OF_RESOURCES a memory allocation failed.
+ @retval EFI_NOT_FOUND no matching files could be found.
+ @sa SHELLENV_FREE_FILE_LIST
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SHELLENV_FILE_META_ARG_NO_WILDCARD) (
+ IN CHAR16 *Arg,
+ IN OUT EFI_LIST_ENTRY *ListHead
+ );
+
+/**
+ this function removes duplicate file listings from lists.
+
+ this is a function for use with SHELLENV_FILE_META_ARG_NO_WILDCARD and
+ SHELLENV_FILE_META_ARG. this function will verify that there are no duplicate
+ files in the list of returned files. any file listed twice will have one of its
+ instances removed.
+
+ @param ListHead pointer to linked list head that was returned from
+ SHELLENV_FILE_META_ARG_NO_WILDCARD or
+ SHELLENV_FILE_META_ARG.
+
+ @retval EFI_SUCCESS this function always returns success.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SHELLENV_DEL_DUP_FILE) (
+ IN EFI_LIST_ENTRY * ListHead
+ );
+
+/**
+ Converts a File System map name to a device path.
+
+ if DevPath is NULL then ASSERT()
+
+ This function looks through the shell environment map for a map whose Name
+ matches the Name parameter. If one is found the device path pointer is
+ updated to point to that file systems device path. the caller should not
+ free the memory from that device path.
+
+ this function will use the internal lock to prevent changes to the map during
+ the lookup operation.
+
+ @param Name pointer to NULL terminated UNICODE string of the
+ file system name
+ @param DevPath pointer to pointer to DevicePath. only valid on
+ OUT if sucessful
+
+ @retval EFI_SUCCESS the conversion was successful and the device
+ path was returned.
+ @retval EFI_NOT_FOUND the file system could not be found in the map.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SHELLENV_GET_FS_DEVICE_PATH) (
+ IN CHAR16 *Name,
+ OUT EFI_DEVICE_PATH_PROTOCOL **DevPath
+ );
+
+/// EFI_SHELL_ENVIRONMENT2 protocol structure
+/// contains pointers to functions
+typedef struct {
+ SHELLENV_EXECUTE Execute;
+ SHELLENV_GET_ENV GetEnv;
+ SHELLENV_GET_MAP GetMap;
+ SHELLENV_ADD_CMD AddCmd;
+ SHELLENV_ADD_PROT AddProt;
+ SHELLENV_GET_PROT GetProt;
+ SHELLENV_CUR_DIR CurDir;
+ SHELLENV_FILE_META_ARG FileMetaArg;
+ SHELLENV_FREE_FILE_LIST FreeFileList;
+
+ //
+ // The following services are only used by the shell itself
+ //
+ SHELLENV_NEW_SHELL NewShell;
+ SHELLENV_BATCH_IS_ACTIVE BatchIsActive;
+
+ SHELLENV_FREE_RESOURCES FreeResources;
+
+ //
+ // GUID to differentiate ShellEnvironment2 from ShellEnvironment
+ //
+ EFI_GUID SESGuid;
+ //
+ // Major Version grows if shell environment interface has been changes
+ //
+ UINT32 MajorVersion;
+ UINT32 MinorVersion;
+ SHELLENV_ENABLE_PAGE_BREAK EnablePageBreak;
+ SHELLENV_DISABLE_PAGE_BREAK DisablePageBreak;
+ SHELLENV_GET_PAGE_BREAK GetPageBreak;
+
+ SHELLENV_SET_KEY_FILTER SetKeyFilter;
+ SHELLENV_GET_KEY_FILTER GetKeyFilter;
+
+ SHELLENV_GET_EXECUTION_BREAK GetExecutionBreak;
+ SHELLENV_INCREMENT_SHELL_NESTING_LEVEL IncrementShellNestingLevel;
+ SHELLENV_DECREMENT_SHELL_NESTING_LEVEL DecrementShellNestingLevel;
+ SHELLENV_IS_ROOT_SHELL IsRootShell;
+
+ SHELLENV_CLOSE_CONSOLE_PROXY CloseConsoleProxy;
+ HANDLE_ENUMERATOR HandleEnumerator;
+ PROTOCOL_INFO_ENUMERATOR ProtocolInfoEnumerator;
+ GET_DEVICE_NAME GetDeviceName;
+ GET_SHELL_MODE GetShellMode;
+ SHELLENV_NAME_TO_PATH NameToPath;
+ SHELLENV_GET_FS_NAME GetFsName;
+ SHELLENV_FILE_META_ARG_NO_WILDCARD FileMetaArgNoWildCard;
+ SHELLENV_DEL_DUP_FILE DelDupFileArg;
+ SHELLENV_GET_FS_DEVICE_PATH GetFsDevicePath;
+} EFI_SHELL_ENVIRONMENT2;
+
+extern EFI_GUID gEfiShellEnvironment2Guid;
+extern EFI_GUID gEfiShellEnvironment2ExtGuid;
+#endif // _SHELLENV_H_
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