mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-30 07:42:13 +00:00
854 lines
26 KiB
C++
854 lines
26 KiB
C++
/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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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#include <map>
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#include <switch.h>
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#include "dmnt_cheat_manager.hpp"
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#include "dmnt_cheat_vm.hpp"
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#include "dmnt_config.hpp"
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#include "pm_shim.h"
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static HosMutex g_cheat_lock;
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static HosThread g_detect_thread, g_vm_thread;
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static IEvent *g_cheat_process_event;
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static DmntCheatVm *g_cheat_vm;
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static CheatProcessMetadata g_cheat_process_metadata = {0};
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static Handle g_cheat_process_debug_hnd = 0;
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/* Global cheat entry storage. */
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static CheatEntry g_cheat_entries[DmntCheatManager::MaxCheatCount];
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/* Global frozen address storage. */
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static std::map<u64, FrozenAddressValue> g_frozen_addresses_map;
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void DmntCheatManager::CloseActiveCheatProcess() {
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if (g_cheat_process_debug_hnd != 0) {
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/* Close process resources. */
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svcCloseHandle(g_cheat_process_debug_hnd);
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g_cheat_process_debug_hnd = 0;
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g_cheat_process_metadata = (CheatProcessMetadata){0};
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/* Clear cheat list. */
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ResetAllCheatEntries();
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/* Clear frozen addresses. */
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ResetFrozenAddresses();
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/* Signal to our fans. */
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g_cheat_process_event->Signal();
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}
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}
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bool DmntCheatManager::HasActiveCheatProcess() {
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u64 tmp;
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bool has_cheat_process = g_cheat_process_debug_hnd != 0;
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if (has_cheat_process) {
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has_cheat_process &= R_SUCCEEDED(svcGetProcessId(&tmp, g_cheat_process_debug_hnd));
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}
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if (has_cheat_process) {
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has_cheat_process &= R_SUCCEEDED(pmdmntGetApplicationPid(&tmp));
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}
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if (has_cheat_process) {
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has_cheat_process &= tmp == g_cheat_process_metadata.process_id;
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}
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if (!has_cheat_process) {
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CloseActiveCheatProcess();
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}
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return has_cheat_process;
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}
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void DmntCheatManager::ContinueCheatProcess() {
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if (HasActiveCheatProcess()) {
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/* Loop getting debug events. */
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u64 debug_event_buf[0x50];
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while (R_SUCCEEDED(svcGetDebugEvent((u8 *)debug_event_buf, g_cheat_process_debug_hnd))) {
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/* ... */
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}
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/* Continue the process. */
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if (kernelAbove300()) {
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svcContinueDebugEvent(g_cheat_process_debug_hnd, 5, nullptr, 0);
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} else {
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svcLegacyContinueDebugEvent(g_cheat_process_debug_hnd, 5, 0);
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}
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}
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}
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Result DmntCheatManager::ReadCheatProcessMemoryForVm(u64 proc_addr, void *out_data, size_t size) {
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if (HasActiveCheatProcess()) {
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return svcReadDebugProcessMemory(out_data, g_cheat_process_debug_hnd, proc_addr, size);
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}
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return ResultDmntCheatNotAttached;
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}
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Result DmntCheatManager::WriteCheatProcessMemoryForVm(u64 proc_addr, const void *data, size_t size) {
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if (HasActiveCheatProcess()) {
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return svcWriteDebugProcessMemory(g_cheat_process_debug_hnd, data, proc_addr, size);
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}
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return ResultDmntCheatNotAttached;
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}
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Result DmntCheatManager::GetCheatProcessMappingCount(u64 *out_count) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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MemoryInfo mem_info;
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u64 address = 0;
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*out_count = 0;
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do {
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mem_info.perm = 0;
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u32 tmp;
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if (R_FAILED(svcQueryDebugProcessMemory(&mem_info, &tmp, g_cheat_process_debug_hnd, address))) {
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break;
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}
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if (mem_info.perm != 0) {
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*out_count += 1;
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}
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address = mem_info.addr + mem_info.size;
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} while (address != 0);
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return 0;
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}
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Result DmntCheatManager::GetCheatProcessMappings(MemoryInfo *mappings, size_t max_count, u64 *out_count, u64 offset) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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MemoryInfo mem_info;
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u64 address = 0;
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u64 count = 0;
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*out_count = 0;
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do {
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mem_info.perm = 0;
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u32 tmp;
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if (R_FAILED(svcQueryDebugProcessMemory(&mem_info, &tmp, g_cheat_process_debug_hnd, address))) {
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break;
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}
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if (mem_info.perm != 0) {
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count++;
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if (count > offset) {
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mappings[(*out_count)++] = mem_info;
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}
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}
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address = mem_info.addr + mem_info.size;
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} while (address != 0 && *out_count < max_count);
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return 0;
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}
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Result DmntCheatManager::ReadCheatProcessMemory(u64 proc_addr, void *out_data, size_t size) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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return ReadCheatProcessMemoryForVm(proc_addr, out_data, size);
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}
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Result DmntCheatManager::WriteCheatProcessMemory(u64 proc_addr, const void *data, size_t size) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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return WriteCheatProcessMemoryForVm(proc_addr, data, size);
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}
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Result DmntCheatManager::QueryCheatProcessMemory(MemoryInfo *mapping, u64 address) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (HasActiveCheatProcess()) {
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u32 tmp;
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return svcQueryDebugProcessMemory(mapping, &tmp, g_cheat_process_debug_hnd, address);
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}
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return ResultDmntCheatNotAttached;
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}
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void DmntCheatManager::ResetFrozenAddresses() {
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/* Just clear the map. */
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g_frozen_addresses_map.clear();
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}
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void DmntCheatManager::ResetCheatEntry(size_t i) {
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if (i < DmntCheatManager::MaxCheatCount) {
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g_cheat_entries[i].enabled = false;
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g_cheat_entries[i].cheat_id = i;
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g_cheat_entries[i].definition = {0};
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}
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}
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void DmntCheatManager::ResetAllCheatEntries() {
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for (size_t i = 0; i < DmntCheatManager::MaxCheatCount; i++) {
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ResetCheatEntry(i);
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}
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}
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CheatEntry *DmntCheatManager::GetFreeCheatEntry() {
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/* Check all non-master cheats for availability. */
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for (size_t i = 1; i < DmntCheatManager::MaxCheatCount; i++) {
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if (g_cheat_entries[i].definition.num_opcodes == 0) {
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return &g_cheat_entries[i];
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}
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}
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return nullptr;
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}
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CheatEntry *DmntCheatManager::GetCheatEntryById(size_t i) {
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if (i < DmntCheatManager::MaxCheatCount) {
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return &g_cheat_entries[i];
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}
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return nullptr;
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}
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bool DmntCheatManager::ParseCheats(const char *s, size_t len) {
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size_t i = 0;
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CheatEntry *cur_entry = NULL;
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while (i < len) {
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if (isspace(s[i])) {
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/* Just ignore space. */
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i++;
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} else if (s[i] == '[') {
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/* Parse a readable cheat name. */
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cur_entry = GetFreeCheatEntry();
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if (cur_entry == NULL) {
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return false;
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}
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/* Extract name bounds. */
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size_t j = i + 1;
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while (s[j] != ']') {
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j++;
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if (j >= len || (j - i - 1) >= sizeof(cur_entry->definition.readable_name)) {
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return false;
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}
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}
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/* s[i+1:j] is cheat name. */
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const size_t cheat_name_len = (j - i - 1);
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memcpy(cur_entry->definition.readable_name, &s[i+1], cheat_name_len);
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cur_entry->definition.readable_name[cheat_name_len] = 0;
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/* Skip onwards. */
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i = j + 1;
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} else if (s[i] == '{') {
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/* We're parsing a master cheat. */
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cur_entry = &g_cheat_entries[0];
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/* There can only be one master cheat. */
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if (cur_entry->definition.num_opcodes > 0) {
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return false;
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}
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/* Extract name bounds */
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size_t j = i + 1;
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while (s[j] != '}') {
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j++;
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if (j >= len || (j - i - 1) >= sizeof(cur_entry->definition.readable_name)) {
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return false;
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}
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}
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/* s[i+1:j] is cheat name. */
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const size_t cheat_name_len = (j - i - 1);
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memcpy(cur_entry->definition.readable_name, &s[i+1], cheat_name_len);
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cur_entry->definition.readable_name[cheat_name_len] = 0;
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/* Skip onwards. */
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i = j + 1;
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} else if (isxdigit(s[i])) {
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/* Make sure that we have a cheat open. */
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if (cur_entry == NULL) {
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return false;
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}
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/* Bounds check the opcode count. */
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if (cur_entry->definition.num_opcodes >= sizeof(cur_entry->definition.opcodes)/sizeof(cur_entry->definition.opcodes[0])) {
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return false;
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}
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/* We're parsing an instruction, so validate it's 8 hex digits. */
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for (size_t j = 1; j < 8; j++) {
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/* Validate 8 hex chars. */
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if (i + j >= len || !isxdigit(s[i+j])) {
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return false;
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}
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}
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/* Parse the new opcode. */
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char hex_str[9] = {0};
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memcpy(hex_str, &s[i], 8);
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cur_entry->definition.opcodes[cur_entry->definition.num_opcodes++] = strtoul(hex_str, NULL, 16);
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/* Skip onwards. */
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i += 8;
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} else {
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/* Unexpected character encountered. */
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return false;
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}
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}
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/* Enable all entries we parsed. */
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for (size_t i = 0; i < DmntCheatManager::MaxCheatCount; i++) {
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if (g_cheat_entries[i].definition.num_opcodes > 0) {
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g_cheat_entries[i].enabled = true;
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}
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}
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return true;
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}
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bool DmntCheatManager::LoadCheats(u64 title_id, const u8 *build_id) {
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/* Reset existing entries. */
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ResetAllCheatEntries();
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FILE *f_cht = NULL;
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/* Open the file for title/build_id. */
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{
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char path[FS_MAX_PATH+1] = {0};
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snprintf(path, FS_MAX_PATH, "sdmc:/atmosphere/titles/%016lx/cheats/%02x%02x%02x%02x%02x%02x%02x%02x.txt", title_id,
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build_id[0], build_id[1], build_id[2], build_id[3], build_id[4], build_id[5], build_id[6], build_id[7]);
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f_cht = fopen(path, "rb");
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}
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/* Check for NULL */
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if (f_cht == NULL) {
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return false;
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}
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ON_SCOPE_EXIT { fclose(f_cht); };
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/* Get file size. */
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fseek(f_cht, 0L, SEEK_END);
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const size_t cht_sz = ftell(f_cht);
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fseek(f_cht, 0L, SEEK_SET);
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/* Allocate cheat txt buffer. */
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char *cht_txt = (char *)malloc(cht_sz + 1);
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if (cht_txt == NULL) {
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return false;
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}
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ON_SCOPE_EXIT { free(cht_txt); };
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/* Read cheats into buffer. */
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if (fread(cht_txt, 1, cht_sz, f_cht) != cht_sz) {
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return false;
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}
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cht_txt[cht_sz] = 0;
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/* Parse cheat buffer. */
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return ParseCheats(cht_txt, strlen(cht_txt));
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}
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Result DmntCheatManager::GetCheatCount(u64 *out_count) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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*out_count = 0;
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for (size_t i = 0; i < DmntCheatManager::MaxCheatCount; i++) {
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if (g_cheat_entries[i].definition.num_opcodes > 0) {
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*out_count += 1;
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}
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}
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return 0;
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}
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Result DmntCheatManager::GetCheats(CheatEntry *cheats, size_t max_count, u64 *out_count, u64 offset) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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u64 count = 0;
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*out_count = 0;
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for (size_t i = 0; i < DmntCheatManager::MaxCheatCount && (*out_count) < max_count; i++) {
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if (g_cheat_entries[i].definition.num_opcodes > 0) {
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count++;
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if (count > offset) {
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cheats[(*out_count)++] = g_cheat_entries[i];
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}
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}
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}
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return 0;
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}
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Result DmntCheatManager::GetCheatById(CheatEntry *out_cheat, u32 cheat_id) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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const CheatEntry *entry = GetCheatEntryById(cheat_id);
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if (entry == nullptr || entry->definition.num_opcodes == 0) {
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return ResultDmntCheatUnknownChtId;
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}
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*out_cheat = *entry;
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return 0;
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}
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Result DmntCheatManager::ToggleCheat(u32 cheat_id) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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CheatEntry *entry = GetCheatEntryById(cheat_id);
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if (entry == nullptr || entry->definition.num_opcodes == 0) {
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return ResultDmntCheatUnknownChtId;
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}
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entry->enabled = !entry->enabled;
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return 0;
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}
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Result DmntCheatManager::AddCheat(u32 *out_id, CheatDefinition *def, bool enabled) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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if (def->num_opcodes == 0 || def->num_opcodes > sizeof(def->opcodes)/sizeof(def->opcodes[0])) {
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return ResultDmntCheatInvalidCheat;
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}
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CheatEntry *new_entry = GetFreeCheatEntry();
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if (new_entry == nullptr) {
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return ResultDmntCheatOutOfCheats;
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}
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new_entry->enabled = enabled;
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new_entry->definition = *def;
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return 0;
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}
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Result DmntCheatManager::RemoveCheat(u32 cheat_id) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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if (cheat_id >= DmntCheatManager::MaxCheatCount) {
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return ResultDmntCheatUnknownChtId;
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}
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ResetCheatEntry(cheat_id);
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return 0;
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}
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Result DmntCheatManager::GetFrozenAddressCount(u64 *out_count) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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*out_count = g_frozen_addresses_map.size();
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return 0;
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}
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Result DmntCheatManager::GetFrozenAddresses(FrozenAddressEntry *frz_addrs, size_t max_count, u64 *out_count, u64 offset) {
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std::scoped_lock<HosMutex> lk(g_cheat_lock);
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if (!HasActiveCheatProcess()) {
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return ResultDmntCheatNotAttached;
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}
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u64 count = 0;
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*out_count = 0;
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for (auto const& [address, value] : g_frozen_addresses_map) {
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if ((*out_count) >= max_count) {
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break;
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}
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count++;
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if (count > offset) {
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const u64 cur_ind = (*out_count)++;
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frz_addrs[cur_ind].address = address;
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frz_addrs[cur_ind].value = value;
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}
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}
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return 0;
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}
|
|
|
|
Result DmntCheatManager::GetFrozenAddress(FrozenAddressEntry *frz_addr, u64 address) {
|
|
std::scoped_lock<HosMutex> lk(g_cheat_lock);
|
|
|
|
if (!HasActiveCheatProcess()) {
|
|
return ResultDmntCheatNotAttached;
|
|
}
|
|
|
|
const auto it = g_frozen_addresses_map.find(address);
|
|
if (it == g_frozen_addresses_map.end()) {
|
|
return ResultDmntCheatAddressNotFrozen;
|
|
}
|
|
|
|
frz_addr->address = it->first;
|
|
frz_addr->value = it->second;
|
|
return 0;
|
|
}
|
|
|
|
Result DmntCheatManager::EnableFrozenAddress(u64 *out_value, u64 address, u64 width) {
|
|
std::scoped_lock<HosMutex> lk(g_cheat_lock);
|
|
|
|
if (!HasActiveCheatProcess()) {
|
|
return ResultDmntCheatNotAttached;
|
|
}
|
|
|
|
if (g_frozen_addresses_map.size() >= DmntCheatManager::MaxFrozenAddressCount) {
|
|
return ResultDmntCheatTooManyFrozenAddresses;
|
|
}
|
|
|
|
const auto it = g_frozen_addresses_map.find(address);
|
|
if (it != g_frozen_addresses_map.end()) {
|
|
return ResultDmntCheatAddressAlreadyFrozen;
|
|
}
|
|
|
|
Result rc;
|
|
FrozenAddressValue value = {0};
|
|
value.width = width;
|
|
if (R_FAILED((rc = ReadCheatProcessMemoryForVm(address, &value.value, width)))) {
|
|
return rc;
|
|
}
|
|
|
|
g_frozen_addresses_map[address] = value;
|
|
*out_value = value.value;
|
|
return 0;
|
|
}
|
|
|
|
Result DmntCheatManager::DisableFrozenAddress(u64 address) {
|
|
std::scoped_lock<HosMutex> lk(g_cheat_lock);
|
|
|
|
if (!HasActiveCheatProcess()) {
|
|
return ResultDmntCheatNotAttached;
|
|
}
|
|
|
|
const auto it = g_frozen_addresses_map.find(address);
|
|
if (it == g_frozen_addresses_map.end()) {
|
|
return ResultDmntCheatAddressNotFrozen;
|
|
}
|
|
|
|
g_frozen_addresses_map.erase(address);
|
|
return 0;
|
|
}
|
|
|
|
Handle DmntCheatManager::PrepareDebugNextApplication() {
|
|
Result rc;
|
|
Handle event_h;
|
|
if (R_FAILED((rc = pmdmntEnableDebugForApplication(&event_h)))) {
|
|
fatalSimple(rc);
|
|
}
|
|
|
|
return event_h;
|
|
}
|
|
|
|
static void PopulateMemoryExtents(MemoryRegionExtents *extents, Handle p_h, u64 id_base, u64 id_size) {
|
|
Result rc;
|
|
/* Get base extent. */
|
|
if (R_FAILED((rc = svcGetInfo(&extents->base, id_base, p_h, 0)))) {
|
|
fatalSimple(rc);
|
|
}
|
|
|
|
/* Get size extent. */
|
|
if (R_FAILED((rc = svcGetInfo(&extents->size, id_size, p_h, 0)))) {
|
|
fatalSimple(rc);
|
|
}
|
|
}
|
|
|
|
static void StartDebugProcess(u64 pid) {
|
|
Result rc = pmdmntStartProcess(pid);
|
|
if (R_FAILED(rc)) {
|
|
fatalSimple(rc);
|
|
}
|
|
}
|
|
|
|
Result DmntCheatManager::ForceOpenCheatProcess() {
|
|
std::scoped_lock<HosMutex> lk(g_cheat_lock);
|
|
Result rc;
|
|
|
|
if (HasActiveCheatProcess()) {
|
|
return 0;
|
|
}
|
|
|
|
/* Get the current application process ID. */
|
|
if (R_FAILED((rc = pmdmntGetApplicationPid(&g_cheat_process_metadata.process_id)))) {
|
|
return rc;
|
|
}
|
|
ON_SCOPE_EXIT { if (R_FAILED(rc)) { g_cheat_process_metadata.process_id = 0; } };
|
|
|
|
/* Get process handle, use it to learn memory extents. */
|
|
{
|
|
Handle proc_h = 0;
|
|
ON_SCOPE_EXIT { if (proc_h != 0) { svcCloseHandle(proc_h); } };
|
|
|
|
if (R_FAILED((rc = pmdmntAtmosphereGetProcessInfo(&proc_h, &g_cheat_process_metadata.title_id, nullptr, g_cheat_process_metadata.process_id)))) {
|
|
return rc;
|
|
}
|
|
|
|
/* Get memory extents. */
|
|
PopulateMemoryExtents(&g_cheat_process_metadata.heap_extents, proc_h, 4, 5);
|
|
PopulateMemoryExtents(&g_cheat_process_metadata.alias_extents, proc_h, 2, 3);
|
|
if (kernelAbove200()) {
|
|
PopulateMemoryExtents(&g_cheat_process_metadata.address_space_extents, proc_h, 12, 13);
|
|
} else {
|
|
g_cheat_process_metadata.address_space_extents.base = 0x08000000UL;
|
|
g_cheat_process_metadata.address_space_extents.size = 0x78000000UL;
|
|
}
|
|
}
|
|
|
|
/* Get module information from Loader. */
|
|
{
|
|
LoaderModuleInfo proc_modules[2];
|
|
u32 num_modules;
|
|
if (R_FAILED((rc = ldrDmntGetModuleInfos(g_cheat_process_metadata.process_id, proc_modules, sizeof(proc_modules), &num_modules)))) {
|
|
return rc;
|
|
}
|
|
|
|
/* All applications must have two modules. */
|
|
/* However, this is a force-open, so we will accept one module. */
|
|
/* Poor HBL, I guess... */
|
|
LoaderModuleInfo *proc_module;
|
|
if (num_modules == 2) {
|
|
proc_module = &proc_modules[1];
|
|
} else if (num_modules == 1) {
|
|
proc_module = &proc_modules[0];
|
|
} else {
|
|
rc = ResultDmntCheatNotAttached;
|
|
return rc;
|
|
}
|
|
|
|
g_cheat_process_metadata.main_nso_extents.base = proc_module->base_address;
|
|
g_cheat_process_metadata.main_nso_extents.size = proc_module->size;
|
|
memcpy(g_cheat_process_metadata.main_nso_build_id, proc_module->build_id, sizeof(g_cheat_process_metadata.main_nso_build_id));
|
|
}
|
|
|
|
/* Read cheats off the SD. */
|
|
/* This is allowed to fail. We may not have any cheats. */
|
|
LoadCheats(g_cheat_process_metadata.title_id, g_cheat_process_metadata.main_nso_build_id);
|
|
|
|
/* Open a debug handle. */
|
|
if (R_FAILED((rc = svcDebugActiveProcess(&g_cheat_process_debug_hnd, g_cheat_process_metadata.process_id)))) {
|
|
return rc;
|
|
}
|
|
|
|
/* Continue debug events, etc. */
|
|
ContinueCheatProcess();
|
|
|
|
/* Signal to our fans. */
|
|
g_cheat_process_event->Signal();
|
|
|
|
return rc;
|
|
}
|
|
|
|
void DmntCheatManager::OnNewApplicationLaunch() {
|
|
std::scoped_lock<HosMutex> lk(g_cheat_lock);
|
|
Result rc;
|
|
|
|
/* Close the current application, if it's open. */
|
|
CloseActiveCheatProcess();
|
|
|
|
/* Get the new application's process ID. */
|
|
if (R_FAILED((rc = pmdmntGetApplicationPid(&g_cheat_process_metadata.process_id)))) {
|
|
fatalSimple(rc);
|
|
}
|
|
|
|
/* Get process handle, use it to learn memory extents. */
|
|
{
|
|
Handle proc_h = 0;
|
|
ON_SCOPE_EXIT { if (proc_h != 0) { svcCloseHandle(proc_h); } };
|
|
|
|
if (R_FAILED((rc = pmdmntAtmosphereGetProcessInfo(&proc_h, &g_cheat_process_metadata.title_id, nullptr, g_cheat_process_metadata.process_id)))) {
|
|
fatalSimple(rc);
|
|
}
|
|
|
|
/* Get memory extents. */
|
|
PopulateMemoryExtents(&g_cheat_process_metadata.heap_extents, proc_h, 4, 5);
|
|
PopulateMemoryExtents(&g_cheat_process_metadata.alias_extents, proc_h, 2, 3);
|
|
if (kernelAbove200()) {
|
|
PopulateMemoryExtents(&g_cheat_process_metadata.address_space_extents, proc_h, 12, 13);
|
|
} else {
|
|
g_cheat_process_metadata.address_space_extents.base = 0x08000000UL;
|
|
g_cheat_process_metadata.address_space_extents.size = 0x78000000UL;
|
|
}
|
|
}
|
|
|
|
/* Check if we should skip based on keys down. */
|
|
if (!DmntConfigManager::HasCheatEnableButton(g_cheat_process_metadata.title_id)) {
|
|
StartDebugProcess(g_cheat_process_metadata.process_id);
|
|
g_cheat_process_metadata.process_id = 0;
|
|
return;
|
|
}
|
|
|
|
/* Get module information from Loader. */
|
|
{
|
|
LoaderModuleInfo proc_modules[2];
|
|
u32 num_modules;
|
|
if (R_FAILED((rc = ldrDmntGetModuleInfos(g_cheat_process_metadata.process_id, proc_modules, sizeof(proc_modules), &num_modules)))) {
|
|
fatalSimple(rc);
|
|
}
|
|
|
|
/* All applications must have two modules. */
|
|
/* If we only have one, we must be e.g. mitming HBL. */
|
|
/* We don't want to fuck with HBL. */
|
|
if (num_modules != 2) {
|
|
StartDebugProcess(g_cheat_process_metadata.process_id);
|
|
g_cheat_process_metadata.process_id = 0;
|
|
return;
|
|
}
|
|
|
|
g_cheat_process_metadata.main_nso_extents.base = proc_modules[1].base_address;
|
|
g_cheat_process_metadata.main_nso_extents.size = proc_modules[1].size;
|
|
memcpy(g_cheat_process_metadata.main_nso_build_id, proc_modules[1].build_id, sizeof(g_cheat_process_metadata.main_nso_build_id));
|
|
}
|
|
|
|
/* Read cheats off the SD. */
|
|
if (!LoadCheats(g_cheat_process_metadata.title_id, g_cheat_process_metadata.main_nso_build_id)) {
|
|
/* If we don't have cheats, or cheats are malformed, don't attach. */
|
|
StartDebugProcess(g_cheat_process_metadata.process_id);
|
|
g_cheat_process_metadata.process_id = 0;
|
|
return;
|
|
}
|
|
|
|
/* Open a debug handle. */
|
|
if (R_FAILED((rc = svcDebugActiveProcess(&g_cheat_process_debug_hnd, g_cheat_process_metadata.process_id)))) {
|
|
fatalSimple(rc);
|
|
}
|
|
|
|
/* Start the process. */
|
|
StartDebugProcess(g_cheat_process_metadata.process_id);
|
|
|
|
/* Continue debug events, etc. */
|
|
ContinueCheatProcess();
|
|
|
|
/* Signal to our fans. */
|
|
g_cheat_process_event->Signal();
|
|
}
|
|
|
|
void DmntCheatManager::DetectThread(void *arg) {
|
|
auto waiter = new WaitableManager(1);
|
|
waiter->AddWaitable(LoadReadOnlySystemEvent(PrepareDebugNextApplication(), [](u64 timeout) {
|
|
/* Process stuff for new application. */
|
|
DmntCheatManager::OnNewApplicationLaunch();
|
|
|
|
/* Setup detection for the next application, and close the duplicate handle. */
|
|
svcCloseHandle(PrepareDebugNextApplication());
|
|
|
|
return 0x0;
|
|
}, true));
|
|
|
|
waiter->Process();
|
|
delete waiter;
|
|
}
|
|
|
|
void DmntCheatManager::VmThread(void *arg) {
|
|
while (true) {
|
|
/* Execute Cheat VM. */
|
|
{
|
|
/* Acquire lock. */
|
|
std::scoped_lock<HosMutex> lk(g_cheat_lock);
|
|
|
|
if (HasActiveCheatProcess()) {
|
|
/* Handle any pending debug events. */
|
|
ContinueCheatProcess();
|
|
|
|
/* Execute VM. */
|
|
if (g_cheat_vm->LoadProgram(g_cheat_entries, DmntCheatManager::MaxCheatCount)) {
|
|
if (g_cheat_vm->GetProgramSize() != 0) {
|
|
g_cheat_vm->Execute(&g_cheat_process_metadata);
|
|
}
|
|
}
|
|
|
|
/* Apply frozen addresses. */
|
|
for (auto const& [address, value] : g_frozen_addresses_map) {
|
|
WriteCheatProcessMemoryForVm(address, &value.value, value.width);
|
|
}
|
|
}
|
|
}
|
|
svcSleepThread(0x5000000ul);
|
|
}
|
|
}
|
|
|
|
bool DmntCheatManager::GetHasActiveCheatProcess() {
|
|
std::scoped_lock<HosMutex> lk(g_cheat_lock);
|
|
|
|
return HasActiveCheatProcess();
|
|
}
|
|
|
|
Handle DmntCheatManager::GetCheatProcessEventHandle() {
|
|
return g_cheat_process_event->GetHandle();
|
|
}
|
|
|
|
Result DmntCheatManager::GetCheatProcessMetadata(CheatProcessMetadata *out) {
|
|
std::scoped_lock<HosMutex> lk(g_cheat_lock);
|
|
|
|
if (HasActiveCheatProcess()) {
|
|
*out = g_cheat_process_metadata;
|
|
return 0;
|
|
}
|
|
|
|
return ResultDmntCheatNotAttached;
|
|
}
|
|
|
|
void DmntCheatManager::InitializeCheatManager() {
|
|
/* Create cheat process detection event. */
|
|
g_cheat_process_event = CreateWriteOnlySystemEvent();
|
|
|
|
/* Create cheat vm. */
|
|
g_cheat_vm = new DmntCheatVm();
|
|
|
|
/* Spawn application detection thread, spawn cheat vm thread. */
|
|
if (R_FAILED(g_detect_thread.Initialize(&DmntCheatManager::DetectThread, nullptr, 0x4000, 28))) {
|
|
std::abort();
|
|
}
|
|
if (R_FAILED(g_vm_thread.Initialize(&DmntCheatManager::VmThread, nullptr, 0x4000, 28))) {
|
|
std::abort();
|
|
}
|
|
|
|
/* Start threads. */
|
|
if (R_FAILED(g_detect_thread.Start()) || R_FAILED(g_vm_thread.Start())) {
|
|
std::abort();
|
|
}
|
|
}
|