174 lines
6.2 KiB
C
174 lines
6.2 KiB
C
/*
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* This file is part of Luma3DS
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* Copyright (C) 2016-2017 Aurora Wright, TuxSH
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
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* * Requiring preservation of specified reasonable legal notices or
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* author attributions in that material or in the Appropriate Legal
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* Notices displayed by works containing it.
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* * Prohibiting misrepresentation of the origin of that material,
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* or requiring that modified versions of such material be marked in
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* reasonable ways as different from the original version.
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*/
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#include "memory.h"
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#include "svc.h"
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#include "svc/ControlMemory.h"
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#include "svc/GetProcessInfo.h"
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#include "svc/GetThreadInfo.h"
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#include "svc/GetSystemInfo.h"
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#include "svc/GetCFWInfo.h"
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#include "svc/ConnectToPort.h"
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#include "svc/SendSyncRequest.h"
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#include "svc/Break.h"
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#include "svc/SetGpuProt.h"
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#include "svc/SetWifiEnabled.h"
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#include "svc/Backdoor.h"
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#include "svc/KernelSetState.h"
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#include "svc/CustomBackdoor.h"
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#include "svc/MapProcessMemoryEx.h"
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#include "svc/UnmapProcessMemoryEx.h"
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#include "svc/ControlService.h"
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#include "svc/CopyHandle.h"
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#include "svc/TranslateHandle.h"
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void *officialSVCs[0x7E] = {NULL};
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static inline void yieldDuringRosalinaMenu(void)
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{
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KProcess *currentProcess = currentCoreContext->objectContext.currentProcess;
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u64 titleId = codeSetOfProcess(currentProcess)->titleId;
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u32 highTitleId = (u32)(titleId >> 32), lowTitleId = (u32)titleId;
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while((rosalinaState & 1) && idOfProcess(currentProcess) >= nbSection0Modules &&
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(highTitleId != 0x00040130 || (highTitleId == 0x00040130 && (lowTitleId == 0x1A02 || lowTitleId == 0x1C02))))
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SleepThread(25 * 1000 * 1000LL);
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}
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void signalSvcEntry(u8 *pageEnd)
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{
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u32 svcId = (u32) *(u8 *)(pageEnd - 0xB5);
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KProcess *currentProcess = currentCoreContext->objectContext.currentProcess;
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yieldDuringRosalinaMenu();
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if(svcId == 0xFE)
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svcId = *(u32 *)(pageEnd - 0x110 + 8 * 4); // r12 ; note: max theortical SVC atm: 0x3FFFFFFF. We don't support catching svcIds >= 0x100 atm either
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// Since DBGEVENT_SYSCALL_ENTRY is non blocking, we'll cheat using EXCEVENT_UNDEFINED_SYSCALL (debug->svcId is fortunately an u16!)
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if(debugOfProcess(currentProcess) != NULL && shouldSignalSyscallDebugEvent(currentProcess, svcId))
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SignalDebugEvent(DBGEVENT_OUTPUT_STRING, 0xFFFFFFFE, svcId);
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}
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void signalSvcReturn(u8 *pageEnd)
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{
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u32 svcId = (u32) *(u8 *)(pageEnd - 0xB5);
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KProcess *currentProcess = currentCoreContext->objectContext.currentProcess;
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yieldDuringRosalinaMenu();
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if(svcId == 0xFE)
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svcId = *(u32 *)(pageEnd - 0x110 + 8 * 4); // r12 ; note: max theortical SVC atm: 0x1FFFFFFF. We don't support catching svcIds >= 0x100 atm either
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// Since DBGEVENT_SYSCALL_RETURN is non blocking, we'll cheat using EXCEVENT_UNDEFINED_SYSCALL (debug->svcId is fortunately an u16!)
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if(debugOfProcess(currentProcess) != NULL && shouldSignalSyscallDebugEvent(currentProcess, svcId))
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SignalDebugEvent(DBGEVENT_OUTPUT_STRING, 0xFFFFFFFF, svcId);
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}
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static bool doingVeryShittyPmResLimitWorkaround = false; // I feel dirty
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void *svcHook(u8 *pageEnd)
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{
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KProcess *currentProcess = currentCoreContext->objectContext.currentProcess;
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u32 svcId = *(u8 *)(pageEnd - 0xB5);
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if(svcId == 0xFE)
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svcId = *(u32 *)(pageEnd - 0x110 + 8 * 4); // r12 ; note: max theortical SVC atm: 0x3FFFFFFF. We don't support catching svcIds >= 0x100 atm either
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switch(svcId)
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{
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case 0x01:
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return ControlMemoryHookWrapper;
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case 0x17:
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if(strcmp(codeSetOfProcess(currentProcess)->processName, "pm") == 0) // only called twice in pm, by the same function
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{
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*(vu32 *)(configPage + 0x44) += __end__ - __start__;
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doingVeryShittyPmResLimitWorkaround = true;
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}
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return officialSVCs[0x17];
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case 0x2A:
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return GetSystemInfoHookWrapper;
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case 0x2B:
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return GetProcessInfoHookWrapper;
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case 0x2C:
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return GetThreadInfoHookWrapper;
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case 0x2D:
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return ConnectToPortHookWrapper;
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case 0x2E:
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return GetCFWInfo; // DEPRECATED
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case 0x32:
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return SendSyncRequestHook;
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case 0x3C:
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return (debugOfProcess(currentProcess) != NULL) ? officialSVCs[0x3C] : (void *)Break;
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case 0x59:
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return SetGpuProt;
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case 0x5A:
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return SetWifiEnabled;
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case 0x79:
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if(doingVeryShittyPmResLimitWorkaround)
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{
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*(vu32 *)(configPage + 0x44) -= __end__ - __start__;
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doingVeryShittyPmResLimitWorkaround = false;
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}
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return officialSVCs[0x79];
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case 0x7B:
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return Backdoor;
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case 0x7C:
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return KernelSetStateHook;
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case 0x80:
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return CustomBackdoor;
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case 0x90:
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return convertVAToPA;
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case 0x91:
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return flushDataCacheRange;
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case 0x92:
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return flushEntireDataCache;
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case 0x93:
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return invalidateInstructionCacheRange;
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case 0x94:
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return invalidateEntireInstructionCache;
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case 0xA0:
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return MapProcessMemoryEx;
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case 0xA1:
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return UnmapProcessMemoryEx;
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case 0xA2:
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return ControlMemoryEx;
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case 0xB0:
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return ControlService;
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case 0xB1:
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return CopyHandleWrapper;
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case 0xB2:
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return TranslateHandleWrapper;
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default:
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return (svcId <= 0x7D) ? officialSVCs[svcId] : NULL;
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}
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}
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