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c44501b313
The UefiShell*CommandsLib instances have constructor functions that do something like: gHiiHandle = HiiAddPackages (...); ... ShellCommandRegisterCommandName (..., gHiiHandle, ...); and destructor functions that implement the following pattern: HiiRemovePackages (gHiiHandle); The -- semantic, not functional -- problem is that "gHiiHandle" is declared with type EFI_HANDLE, and not EFI_HII_HANDLE, in all of these library instances, even though HiiAddPackages() correctly returns EFI_HII_HANDLE, and HiiRemovePackages() takes EFI_HII_HANDLE. Once we fix the type of "gHiiHandle", it causes sort of a butterfly effect, because it is passed around widely. Track down and update all of those locations. The DynamicCommand lib instances use a similar pattern, so they are affected too. NOTE: in practice, this patch is a no-op, as both EFI_HII_HANDLE and EFI_HANDLE are typedefs to (VOID*). However, we shouldn't use EFI_HANDLE where semantically EFI_HII_HANDLE is passed around. Cc: Jaben Carsey <jaben.carsey@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Zhichao Gao <zhichao.gao@intel.com> Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/** @file
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Main file for NULL named library for network2 shell command functions.
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Copyright (c) 2016, Intel Corporation. All rights reserved. <BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "UefiShellNetwork2CommandsLib.h"
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CONST CHAR16 gShellNetwork2FileName[] = L"ShellCommands";
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EFI_HII_HANDLE gShellNetwork2HiiHandle = NULL;
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/**
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return the file name of the help text file if not using HII.
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@return The string pointer to the file name.
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**/
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CONST CHAR16*
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EFIAPI
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ShellCommandGetManFileNameNetwork2 (
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VOID
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)
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{
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return (gShellNetwork2FileName);
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}
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/**
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Constructor for the Shell Network2 Commands library.
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Install the handlers for Network2 UEFI Shell 2.0 profile commands.
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@param ImageHandle The image handle of the process.
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@param SystemTable The EFI System Table pointer.
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@retval EFI_SUCCESS The shell command handlers were installed sucessfully.
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@retval EFI_UNSUPPORTED The shell level required was not found.
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**/
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EFI_STATUS
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EFIAPI
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ShellNetwork2CommandsLibConstructor (
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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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gShellNetwork2HiiHandle = NULL;
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//
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// check our bit of the profiles mask
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//
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if ((PcdGet8(PcdShellProfileMask) & BIT4) == 0) {
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return (EFI_SUCCESS);
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}
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gShellNetwork2HiiHandle = HiiAddPackages (&gShellNetwork2HiiGuid, gImageHandle, UefiShellNetwork2CommandsLibStrings, NULL);
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if (gShellNetwork2HiiHandle == NULL) {
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return (EFI_DEVICE_ERROR);
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}
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//
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// install our shell command handlers
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//
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ShellCommandRegisterCommandName(L"ping6", ShellCommandRunPing6 , ShellCommandGetManFileNameNetwork2, 0, L"network2", TRUE , gShellNetwork2HiiHandle, STRING_TOKEN(STR_GET_HELP_PING6));
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ShellCommandRegisterCommandName(L"ifconfig6",ShellCommandRunIfconfig6 , ShellCommandGetManFileNameNetwork2, 0, L"network2", TRUE , gShellNetwork2HiiHandle, STRING_TOKEN(STR_GET_HELP_IFCONFIG6));
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return EFI_SUCCESS;
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}
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/**
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Destructor for the library. free any resources.
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@param ImageHandle The image handle of the process.
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@param SystemTable The EFI System Table pointer.
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**/
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EFI_STATUS
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EFIAPI
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ShellNetwork2CommandsLibDestructor (
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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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if (gShellNetwork2HiiHandle != NULL) {
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HiiRemovePackages(gShellNetwork2HiiHandle);
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}
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return EFI_SUCCESS;
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}
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