185 lines
6.6 KiB
C
185 lines
6.6 KiB
C
/*
|
|
* This file is part of Luma3DS
|
|
* Copyright (C) 2016-2020 Aurora Wright, TuxSH
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
|
|
* * Requiring preservation of specified reasonable legal notices or
|
|
* author attributions in that material or in the Appropriate Legal
|
|
* Notices displayed by works containing it.
|
|
* * Prohibiting misrepresentation of the origin of that material,
|
|
* or requiring that modified versions of such material be marked in
|
|
* reasonable ways as different from the original version.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include "synchronization.h"
|
|
#include "svc.h"
|
|
#include "svc/ControlMemory.h"
|
|
#include "svc/GetHandleInfo.h"
|
|
#include "svc/GetSystemInfo.h"
|
|
#include "svc/GetProcessInfo.h"
|
|
#include "svc/GetThreadInfo.h"
|
|
#include "svc/GetCFWInfo.h"
|
|
#include "svc/ConnectToPort.h"
|
|
#include "svc/SendSyncRequest.h"
|
|
#include "svc/Break.h"
|
|
#include "svc/SetGpuProt.h"
|
|
#include "svc/SetWifiEnabled.h"
|
|
#include "svc/Backdoor.h"
|
|
#include "svc/KernelSetState.h"
|
|
#include "svc/CustomBackdoor.h"
|
|
#include "svc/MapProcessMemoryEx.h"
|
|
#include "svc/UnmapProcessMemoryEx.h"
|
|
#include "svc/ControlService.h"
|
|
#include "svc/ControlProcess.h"
|
|
#include "svc/CopyHandle.h"
|
|
#include "svc/TranslateHandle.h"
|
|
|
|
void *officialSVCs[0x7E] = {NULL};
|
|
|
|
void signalSvcEntry(u8 *pageEnd)
|
|
{
|
|
u32 svcId = (u32) *(u8 *)(pageEnd - 0xB5);
|
|
KProcess *currentProcess = currentCoreContext->objectContext.currentProcess;
|
|
|
|
if(svcId == 0xFE)
|
|
svcId = *(u32 *)(pageEnd - 0x110 + 8 * 4); // r12 ; note: max theortical SVC atm: 0x3FFFFFFF. We don't support catching svcIds >= 0x100 atm either
|
|
|
|
// Since DBGEVENT_SYSCALL_ENTRY is non blocking, we'll cheat using EXCEVENT_UNDEFINED_SYSCALL (debug->svcId is fortunately an u16!)
|
|
if(debugOfProcess(currentProcess) != NULL && shouldSignalSyscallDebugEvent(currentProcess, svcId))
|
|
{
|
|
SignalDebugEvent(DBGEVENT_OUTPUT_STRING, 0xFFFFFFFE, svcId);
|
|
}
|
|
}
|
|
|
|
void signalSvcReturn(u8 *pageEnd)
|
|
{
|
|
u32 svcId = (u32) *(u8 *)(pageEnd - 0xB5);
|
|
KProcess *currentProcess = currentCoreContext->objectContext.currentProcess;
|
|
u32 flags = KPROCESS_GET_RVALUE(currentProcess, customFlags);
|
|
|
|
if(svcId == 0xFE)
|
|
svcId = *(u32 *)(pageEnd - 0x110 + 8 * 4); // r12 ; note: max theortical SVC atm: 0x1FFFFFFF. We don't support catching svcIds >= 0x100 atm either
|
|
|
|
// Since DBGEVENT_SYSCALL_RETURN is non blocking, we'll cheat using EXCEVENT_UNDEFINED_SYSCALL (debug->svcId is fortunately an u16!)
|
|
if(debugOfProcess(currentProcess) != NULL && shouldSignalSyscallDebugEvent(currentProcess, svcId))
|
|
SignalDebugEvent(DBGEVENT_OUTPUT_STRING, 0xFFFFFFFF, svcId);
|
|
|
|
// Signal if the memory layout of the process changed
|
|
if (flags & SignalOnMemLayoutChanges && flags & MemLayoutChanged)
|
|
{
|
|
*KPROCESS_GET_PTR(currentProcess, customFlags) = flags & ~MemLayoutChanged;
|
|
SignalEvent(KPROCESS_GET_RVALUE(currentProcess, onMemoryLayoutChangeEvent));
|
|
}
|
|
}
|
|
|
|
void postprocessSvc(void)
|
|
{
|
|
KThread *currentThread = currentCoreContext->objectContext.currentThread;
|
|
if(!currentThread->shallTerminate && rosalinaThreadLockPredicate(currentThread))
|
|
rosalinaRescheduleThread(currentThread, true);
|
|
|
|
officialPostProcessSvc();
|
|
}
|
|
|
|
void *svcHook(u8 *pageEnd)
|
|
{
|
|
KProcess *currentProcess = currentCoreContext->objectContext.currentProcess;
|
|
|
|
u32 svcId = *(u8 *)(pageEnd - 0xB5);
|
|
if(svcId == 0xFE)
|
|
svcId = *(u32 *)(pageEnd - 0x110 + 8 * 4); // r12 ; note: max theortical SVC atm: 0x3FFFFFFF. We don't support catching svcIds >= 0x100 atm either
|
|
|
|
switch(svcId)
|
|
{
|
|
case 0x01:
|
|
return ControlMemoryHookWrapper;
|
|
case 0x03: /* svcExitProcess */
|
|
{
|
|
// Signal that the process is about to be terminated
|
|
u32 flags = KPROCESS_GET_RVALUE(currentProcess, customFlags);
|
|
|
|
if (flags & SignalOnExit)
|
|
{
|
|
SignalEvent(KPROCESS_GET_RVALUE(currentProcess, onProcessExitEvent));
|
|
|
|
KEvent* event = (KEvent *)KProcessHandleTable__ToKAutoObject(handleTableOfProcess(currentProcess),
|
|
KPROCESS_GET_RVALUE(currentProcess, resumeProcessExitEvent));
|
|
((KAutoObject *)event)->vtable->DecrementReferenceCount((KAutoObject *)event);
|
|
}
|
|
return officialSVCs[0x3];
|
|
}
|
|
case 0x29:
|
|
return GetHandleInfoHookWrapper;
|
|
case 0x2A:
|
|
return GetSystemInfoHookWrapper;
|
|
case 0x2B:
|
|
return GetProcessInfoHookWrapper;
|
|
case 0x2C:
|
|
return GetThreadInfoHookWrapper;
|
|
case 0x2D:
|
|
return ConnectToPortHookWrapper;
|
|
case 0x2E:
|
|
return GetCFWInfo; // DEPRECATED
|
|
case 0x32:
|
|
return SendSyncRequestHook;
|
|
case 0x3C:
|
|
return (debugOfProcess(currentProcess) != NULL) ? officialSVCs[0x3C] : (void *)Break;
|
|
case 0x59:
|
|
return SetGpuProt;
|
|
case 0x5A:
|
|
return SetWifiEnabled;
|
|
case 0x7B:
|
|
return Backdoor;
|
|
case 0x7C:
|
|
return KernelSetStateHook;
|
|
|
|
|
|
case 0x80:
|
|
return CustomBackdoor;
|
|
|
|
case 0x90:
|
|
return convertVAToPA;
|
|
case 0x91:
|
|
return flushDataCacheRange;
|
|
case 0x92:
|
|
return flushEntireDataCache;
|
|
case 0x93:
|
|
return invalidateInstructionCacheRange;
|
|
case 0x94:
|
|
return invalidateEntireInstructionCache;
|
|
|
|
case 0xA0:
|
|
return MapProcessMemoryExWrapper;
|
|
case 0xA1:
|
|
return UnmapProcessMemoryEx;
|
|
case 0xA2:
|
|
return ControlMemoryEx;
|
|
|
|
case 0xB0:
|
|
return ControlService;
|
|
case 0xB1:
|
|
return CopyHandleWrapper;
|
|
case 0xB2:
|
|
return TranslateHandleWrapper;
|
|
case 0xB3:
|
|
return ControlProcess;
|
|
|
|
default:
|
|
return (svcId <= 0x7D) ? officialSVCs[svcId] : NULL;
|
|
}
|
|
}
|