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/** @file
Main file for Unload shell Driver1 function.
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UefiShellDriver1CommandsLib.h"
/**
Function to dump LoadedImage info from TheHandle.
@param[in] TheHandle The handle to dump info from.
@retval EFI_SUCCESS The info was dumped.
@retval EFI_INVALID_PARAMETER The handle did not have LoadedImage
**/
EFI_STATUS
DumpLoadedImageProtocolInfo (
IN EFI_HANDLE TheHandle
)
{
CHAR16 *TheString;
TheString = GetProtocolInformationDump (TheHandle, &gEfiLoadedImageProtocolGuid, TRUE);
if (TheString == NULL) {
return (EFI_INVALID_PARAMETER);
}
ShellPrintDefaultEx (L"%s", TheString);
SHELL_FREE_NON_NULL (TheString);
return (EFI_SUCCESS);
}
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
{ L"-n", TypeFlag },
{ L"-v", TypeFlag },
{ L"-verbose", TypeFlag },
{ NULL, TypeMax }
};
/**
Function for 'unload' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunUnload (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
EFI_HANDLE TheHandle;
CONST CHAR16 *Param1;
SHELL_PROMPT_RESPONSE *Resp;
UINT64 Value;
ShellStatus = SHELL_SUCCESS;
Package = NULL;
Resp = NULL;
Value = 0;
TheHandle = NULL;
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize ();
ASSERT_EFI_ERROR (Status);
//
// parse the command line
//
Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR (Status)) {
if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_PROBLEM), gShellDriver1HiiHandle, L"unload", ProblemParam);
FreePool (ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT (FALSE);
}
} else {
if (ShellCommandLineGetCount (Package) > 2) {
//
// error for too many parameters
//
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_TOO_MANY), gShellDriver1HiiHandle, L"unload");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetCount (Package) < 2) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_TOO_FEW), gShellDriver1HiiHandle, L"unload");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Param1 = ShellCommandLineGetRawValue (Package, 1);
if (Param1 != NULL) {
Status = ShellConvertStringToUint64 (Param1, &Value, TRUE, FALSE);
TheHandle = ConvertHandleIndexToHandle ((UINTN)Value);
}
if (EFI_ERROR (Status) || (Param1 == NULL) || (TheHandle == NULL)) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_INV_HANDLE), gShellDriver1HiiHandle, L"unload", Param1);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT (TheHandle != NULL);
if (ShellCommandLineGetFlag (Package, L"-v") || ShellCommandLineGetFlag (Package, L"-verbose")) {
DumpLoadedImageProtocolInfo (TheHandle);
}
if (!ShellCommandLineGetFlag (Package, L"-n")) {
Status = ShellPrintHiiDefaultEx (STRING_TOKEN (STR_UNLOAD_CONF), gShellDriver1HiiHandle, (UINTN)TheHandle);
Status = ShellPromptForResponse (ShellPromptResponseTypeYesNo, NULL, (VOID **)&Resp);
}
if (ShellCommandLineGetFlag (Package, L"-n") || ((Resp != NULL) && (*Resp == ShellPromptResponseYes))) {
Status = gBS->UnloadImage (TheHandle);
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_HANDLE_RESULT), gShellDriver1HiiHandle, L"Unload", (UINTN)TheHandle, Status);
}
SHELL_FREE_NON_NULL (Resp);
}
}
}
if (ShellStatus == SHELL_SUCCESS) {
if (Status == EFI_SECURITY_VIOLATION) {
ShellStatus = SHELL_SECURITY_VIOLATION;
} else if (Status == EFI_INVALID_PARAMETER) {
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (EFI_ERROR (Status)) {
ShellStatus = SHELL_NOT_FOUND;
}
}
if (Package != NULL) {
ShellCommandLineFreeVarList (Package);
}
return (ShellStatus);
}
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