brainlilo/BrainLILO.cpp

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2020-09-28 03:19:37 +09:00
/*
* BrainLILO
* U-Boot loader for electric dictionary.
*
* Copyright (C) 2019 C. Shirasaka <holly_programmer@outlook.com>
* based on
** ResetKitHelper
** Soft/hard reset the electronic dictionary.
**
** Copyright (C) 2012 T. Kawada <tcppjp [ at ] gmail.com>
*
* This file is licensed in MIT license.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#define BRAINLILO_API extern "C" __declspec(dllexport)
#include "BrainLILO.h"
#include "BrainLILODrv.h"
#include <string.h>
static bool g_initialized=false;
static HANDLE g_helperHandle=NULL;
static HINSTANCE g_hInstance;
static void initialize(){
if(g_initialized)
return;
g_initialized=true;
}
static void getThisDllDirectoryPath(LPWSTR buffer){
// retrive the path of the application.
GetModuleFileName(g_hInstance, buffer, 512);
const size_t notFound=(size_t)-1;
size_t i=0;
size_t j=notFound;
while(buffer[i]){
if(buffer[i]==L'/' || buffer[i]==L'\\'){
j=i;
}
i++;
}
if(j==notFound)
return;
buffer[j]=0;
}
static bool isDriverLoaded(){
HANDLE handle;
handle=CreateFile(L"LIN0:", GENERIC_READ|GENERIC_WRITE|FILE_WRITE_ATTRIBUTES, 0, NULL, OPEN_EXISTING, 0, NULL);
if(handle==INVALID_HANDLE_VALUE)
handle=NULL;
if(handle){
CloseHandle(handle);
return true;
}
return false;
}
static bool addDriverToRegistry(){
HKEY hKey;
DWORD dw;
RegCreateKeyEx(HKEY_LOCAL_MACHINE, (L"Drivers\\BuiltIn\\LILODrv"), 0, NULL, REG_OPTION_NON_VOLATILE, 0, NULL, &hKey, &dw);
dw = 0x0000;
if(RegSetValueEx(hKey, (L"Index"), 0, REG_DWORD, (BYTE*)&dw, sizeof(DWORD)) != ERROR_SUCCESS)
{
RegCloseKey(hKey);
return false;
}
dw = 0x0100;
if(RegSetValueEx(hKey, (L"Order"), 0, REG_DWORD, (BYTE*)&dw, sizeof(DWORD)) != ERROR_SUCCESS)
{
RegCloseKey(hKey);
return false;
}
if(RegSetValueEx(hKey, (L"Dll"), 0, REG_SZ, (BYTE*)(L"\\Windows\\BrainLILODrv.dll"), sizeof(TCHAR) * ((DWORD)wcslen((L"\\Windows\\BrainLILODrv.dll")) + 1)) != ERROR_SUCCESS)
{
RegCloseKey(hKey);
return false;
}
if(RegSetValueEx(hKey, (L"Prefix"), 0, REG_SZ, (BYTE*)(L"LIN"), sizeof(TCHAR) * ((DWORD)wcslen((L"LIN")) + 1)) != ERROR_SUCCESS)
{
RegCloseKey(hKey);
return false;
}
return true;
}
static void loadDriverIfNeeded(){
if(isDriverLoaded())
return;
OutputDebugString(L"BrainLILO: installing LILODriver...");
DWORD err;
HANDLE driver=NULL;
wchar_t driverPath[1024];
getThisDllDirectoryPath(driverPath);
wcscat(driverPath, L"\\MyJITDebugger.exe");
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TCHAR newDriverPath[128];
wcscpy(newDriverPath,L"\\Windows\\MyJITDebugger.exe");
{
wchar_t buf[1024];
swprintf(buf, L"BrainLILO: copying \"%ls\" to \"%ls\"",
driverPath, newDriverPath);
OutputDebugString(buf);
}
if(!CopyFile(driverPath,newDriverPath, FALSE)){
if(GetFileAttributes(newDriverPath)==(DWORD)-1){
OutputDebugString(L"BrainLILO: failed to copy");
return;
}
}
getThisDllDirectoryPath(driverPath);
wcscat(driverPath, L"\\BrainLILODrv.dll");
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wcscpy(newDriverPath,L"\\Windows\\BrainLILODrv.dll");
{
wchar_t buf[1024];
swprintf(buf, L"BrainLILO: copying \"%ls\" to \"%ls\"",
driverPath, newDriverPath);
OutputDebugString(buf);
}
if(!CopyFile(driverPath,newDriverPath, FALSE)){
if(GetFileAttributes(newDriverPath)==(DWORD)-1){
OutputDebugString(L"BrainLILO: failed to copy");
return;
}
}
OutputDebugString(L"BrainLILO: registering BrainLILODriver...");
try{
driver=RegisterDevice(L"LIN", 0, L"\\Windows\\BrainLILODrv.dll", 0);
if(driver==INVALID_HANDLE_VALUE)
driver=NULL;
if(!driver){
driver=RegisterDevice(L"LIN", 0, L"BrainLILODrv.dll", 0);
if(driver==INVALID_HANDLE_VALUE)
driver=NULL;
}
err=GetLastError();
}catch(DWORD e){
err=e;
}
if(!driver && (err!=0x964)){
OutputDebugString(L"BrainLILO: failed to install...");
return;
}
}
static void openDriver(){
if(g_helperHandle)
return;
g_helperHandle=CreateFile(L"LIN0:", GENERIC_READ|GENERIC_WRITE|FILE_WRITE_ATTRIBUTES, 0, NULL, OPEN_EXISTING, 0, NULL);
if(g_helperHandle==INVALID_HANDLE_VALUE)
g_helperHandle=NULL;
}
extern "C" BOOL APIENTRY DllMain(HINSTANCE hInstance,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
switch (ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
g_hInstance=hInstance;
initialize();
loadDriverIfNeeded();
openDriver();
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
BRAINLILO_API BOOL RKDoSoftReset(){
initialize();
loadDriverIfNeeded();
openDriver();
return DeviceIoControl(g_helperHandle, IOCTL_LIN_DO_LINUX,
NULL, 0, NULL, 0,
NULL, NULL);
}