453 lines
16 KiB
C
453 lines
16 KiB
C
#include <3ds.h>
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#include <string.h>
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#include "launch.h"
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#include "info.h"
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#include "manager.h"
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#include "reslimit.h"
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#include "exheader_info_heap.h"
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#include "task_runner.h"
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#include "util.h"
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#include "luma.h"
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// Note: official PM has two distinct functions for sysmodule vs. regular app. We refactor that into a single function.
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static Result launchTitleImpl(Handle *debug, ProcessData **outProcessData, const FS_ProgramInfo *programInfo,
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const FS_ProgramInfo *programInfoUpdate, u32 launchFlags, ExHeader_Info *exheaderInfo);
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// Note: official PM doesn't include svcDebugActiveProcess in this function, but rather in the caller handling dependencies
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static Result loadWithoutDependencies(Handle *outDebug, ProcessData **outProcessData, u64 programHandle, const FS_ProgramInfo *programInfo,
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u32 launchFlags, const ExHeader_Info *exheaderInfo)
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{
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Result res = 0;
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Handle processHandle = 0;
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u32 pid;
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ProcessData *process;
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const ExHeader_Arm11SystemLocalCapabilities *localcaps = &exheaderInfo->aci.local_caps;
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if (outProcessData != NULL) {
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*outProcessData = NULL;
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}
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if (programInfo->programId & (1ULL << 35)) {
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// RequireBatchUpdate?
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return 0xD8E05803;
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}
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TRY(LOADER_LoadProcess(&processHandle, programHandle));
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TRY(svcGetProcessId(&pid, processHandle));
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// Note: bug in official PM: it seems not to panic/cleanup properly if the function calls below fail,
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// svcTerminateProcess won't be called, it's possible to trigger NULL derefs if you crash fs/sm/whatever,
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// leaks dependencies, and so on...
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// This can be solved by interesting the new process in the list earlier, etc. etc., allowing us to simplify the logic greatly.
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ProcessList_Lock(&g_manager.processList);
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process = ProcessList_New(&g_manager.processList);
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if (process == NULL) {
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panic(1);
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}
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process->handle = processHandle;
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process->pid = pid;
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process->titleId = exheaderInfo->aci.local_caps.title_id;;
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process->programHandle = programHandle;
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process->flags = 0; // will be filled later
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process->terminatedNotificationVariation = (launchFlags & 0xF0) >> 4;
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process->terminationStatus = TERMSTATUS_RUNNING;
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process->refcount = 1;
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ProcessList_Unlock(&g_manager.processList);
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svcSignalEvent(g_manager.newProcessEvent);
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if (outProcessData != NULL) {
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*outProcessData = process;
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}
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u32 serviceCount;
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for(serviceCount = 0; serviceCount < 34 && *(u64 *)localcaps->service_access[serviceCount] != 0; serviceCount++);
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TRY(FSREG_Register(pid, programHandle, programInfo, &localcaps->storage_info));
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TRY(SRVPM_RegisterProcess(pid, serviceCount, localcaps->service_access));
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if (localcaps->reslimit_category <= RESLIMIT_CATEGORY_OTHER) {
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TRY(svcSetProcessResourceLimits(processHandle, g_manager.reslimits[localcaps->reslimit_category]));
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}
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// Yes, even numberOfCores=2 on N3DS. On the 3DS, the affinity mask doesn't play the role of an access limiter,
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// it's only useful for cpuId < 0. thread->affinityMask = process->affinityMask | (cpuId >= 0 ? 1 << cpuId : 0)
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u8 affinityMask = localcaps->core_info.affinity_mask;
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TRY(svcSetProcessAffinityMask(processHandle, &affinityMask, 2));
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TRY(svcSetProcessIdealProcessor(processHandle, localcaps->core_info.ideal_processor));
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if (launchFlags & PMLAUNCHFLAG_NORMAL_APPLICATION) {
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setAppCpuTimeLimitAndSchedModeFromDescriptor(localcaps->title_id, localcaps->reslimits[0]);
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(*outProcessData)->flags |= PROCESSFLAG_NORMAL_APPLICATION; // not in official PM
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}
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if (launchFlags & PMLAUNCHFLAG_QUEUE_DEBUG_APPLICATION) {
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TRY(svcDebugActiveProcess(outDebug, pid));
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}
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return res;
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}
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static Result loadWithDependencies(Handle *outDebug, ProcessData **outProcessData, u64 programHandle, const FS_ProgramInfo *programInfo,
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u32 launchFlags, const ExHeader_Info *exheaderInfo)
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{
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Result res = 0;
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u64 dependencies[48];
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u32 remrefcounts[48] = {0};
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ProcessData *depProcs[48] = {NULL};
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u32 numUnique = 0;
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FS_ProgramInfo depProgramInfo;
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res = loadWithoutDependencies(outDebug, outProcessData, programHandle, programInfo, launchFlags, exheaderInfo);
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ProcessData *process = *outProcessData;
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if (R_FAILED(res)) {
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if (process != NULL) {
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svcTerminateProcess(process->handle);
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}
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return res;
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}
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ExHeader_Info *depExheaderInfo = ExHeaderInfoHeap_New();
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if (depExheaderInfo == NULL) {
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panic(0);
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}
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listMergeUniqueDependencies(depProcs, dependencies, remrefcounts, &numUnique, exheaderInfo);
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if (numUnique > 0) {
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process->flags |= PROCESSFLAG_DEPENDENCIES_LOADED;
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}
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/*
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Official pm does this:
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for each dependency:
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if dep already loaded: if autoloaded increase refcount // note: not autoloaded = not autoterminated
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else: load new sysmodule w/o its deps (then process its deps), set flag "autoloaded" return early from entire function if it fails
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Naturally, it forgets to incref all subsequent dependencies here & also when it factors the duplicate entries in,
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and has a few other bugs (actually I'm not entirely sure... I think it doesn't clear dependencies on termination if it fails)
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It also has a buffer overflow bug if the flattened dep tree has more than 48 elements (but this can never happen in practice)
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*/
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for (u32 i = 0; i < numUnique; i++) {
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if (depProcs[i] != NULL) {
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continue;
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}
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// Note: numUnique is changed within the loop
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depProgramInfo.programId = dependencies[i];
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depProgramInfo.mediaType = MEDIATYPE_NAND;
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res = launchTitleImpl(NULL, &process, &depProgramInfo, NULL, 0, depExheaderInfo);
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depProcs[i] = process;
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if (R_SUCCEEDED(res)) {
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process->flags |= PROCESSFLAG_AUTOLOADED | PROCESSFLAG_DEPENDENCIES_LOADED;
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ProcessData_Incref(process, remrefcounts[i] - 1);
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remrefcounts[i] = 0;
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listMergeUniqueDependencies(depProcs, dependencies, remrefcounts, &numUnique, depExheaderInfo); // does some incref too
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} else if (process != NULL) {
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svcTerminateProcess(process->handle);
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ExHeaderInfoHeap_Delete(depExheaderInfo);
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return res;
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}
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}
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ExHeaderInfoHeap_Delete(depExheaderInfo);
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return res;
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}
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// Note: official PM has two distinct functions for sysmodule vs. regular app. We refactor that into a single function.
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static Result launchTitleImpl(Handle *debug, ProcessData **outProcessData, const FS_ProgramInfo *programInfo,
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const FS_ProgramInfo *programInfoUpdate, u32 launchFlags, ExHeader_Info *exheaderInfo)
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{
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if (debug != NULL) {
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*debug = 0;
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}
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if (isTitleLaunchPrevented(programInfo->programId)) {
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return 0;
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}
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if (launchFlags & PMLAUNCHFLAG_NORMAL_APPLICATION) {
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launchFlags |= PMLAUNCHFLAG_LOAD_DEPENDENCIES;
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} else {
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// NEW: allow non-apps to be debugged with the help of pm
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//launchFlags &= ~(PMLAUNCHFLAG_USE_UPDATE_TITLE | PMLAUNCHFLAG_QUEUE_DEBUG_APPLICATION);
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launchFlags &= ~PMLAUNCHFLAG_USE_UPDATE_TITLE;
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launchFlags &= ~(PMLAUNCHFLAG_FORCE_USE_O3DS_APP_MEM | PMLAUNCHFLAG_FORCE_USE_O3DS_MAX_APP_MEM);
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}
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Result res = 0;
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u64 programHandle;
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StartupInfo si = {0};
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programInfoUpdate = (launchFlags & PMLAUNCHFLAG_USE_UPDATE_TITLE) ? programInfoUpdate : programInfo;
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TRY(registerProgram(&programHandle, programInfo, programInfoUpdate));
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res = LOADER_GetProgramInfo(exheaderInfo, programHandle);
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res = R_SUCCEEDED(res) && exheaderInfo->aci.local_caps.core_info.core_version != SYSCOREVER ? (Result)0xC8A05800 : res;
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if (R_FAILED(res)) {
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LOADER_UnregisterProgram(programHandle);
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return res;
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}
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// Change APPMEMALLOC if needed
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if (IS_N3DS && APPMEMTYPE == 6 && (launchFlags & PMLAUNCHFLAG_NORMAL_APPLICATION) != 0) {
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u32 limitMb;
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SystemMode n3dsSystemMode = exheaderInfo->aci.local_caps.core_info.n3ds_system_mode;
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if ((launchFlags & PMLAUNCHFLAG_FORCE_USE_O3DS_APP_MEM) || n3dsSystemMode == SYSMODE_O3DS_PROD) {
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if ((launchFlags & PMLAUNCHFLAG_FORCE_USE_O3DS_APP_MEM) & PMLAUNCHFLAG_FORCE_USE_O3DS_MAX_APP_MEM) {
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limitMb = 96;
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} else {
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switch (exheaderInfo->aci.local_caps.core_info.o3ds_system_mode) {
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case SYSMODE_O3DS_PROD: limitMb = 64; break;
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case SYSMODE_DEV1: limitMb = 96; break;
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case SYSMODE_DEV2: limitMb = 80; break;
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default: limitMb = 0; break;
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}
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}
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setAppMemLimit(limitMb << 20);
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}
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}
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if (launchFlags & PMLAUNCHFLAG_LOAD_DEPENDENCIES) {
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TRYG(loadWithDependencies(debug, outProcessData, programHandle, programInfo, launchFlags, exheaderInfo), cleanup);
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// note: official pm doesn't terminate the process if this fails (dependency loading)...
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// This may be intentional, but I believe this is a bug since the 0xD8A05805 and svcRun failure codepaths terminate the process...
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// It also forgets to clear PROCESSFLAG_NOTIFY_TERMINATION in the process...
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} else {
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TRYG(loadWithoutDependencies(debug, outProcessData, programHandle, programInfo, launchFlags, exheaderInfo), cleanup);
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// note: official pm doesn't terminate the proc. if it fails here either, but will because of the svcCloseHandle and the svcRun codepath
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}
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ProcessData *process = *outProcessData;
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if (launchFlags & PMLAUNCHFLAG_QUEUE_DEBUG_APPLICATION) {
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// saved field is different in official pm
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// this also means official pm can't launch a title with a debug flag and an application
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if (g_manager.debugData == NULL) {
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g_manager.debugData = process;
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} else {
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res = 0xD8A05805;
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}
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} else {
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si.priority = exheaderInfo->aci.local_caps.core_info.priority;
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si.stack_size = exheaderInfo->sci.codeset_info.stack_size;
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res = svcRun(process->handle, &si);
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if (R_SUCCEEDED(res) && (launchFlags & PMLAUNCHFLAG_NORMAL_APPLICATION) != 0) {
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g_manager.runningApplicationData = process;
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notifySubscribers(0x10C);
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}
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}
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cleanup:
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process = *outProcessData;
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if (process != NULL && R_FAILED(res)) {
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svcTerminateProcess(process->handle);
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} else if (process != NULL) {
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// official PM sets it but forgets to clear it on failure...
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process->flags |= (launchFlags & PMLAUNCHFLAG_NOTIFY_TERMINATION) ? PROCESSFLAG_NOTIFY_TERMINATION : 0;
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}
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return res;
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}
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static Result launchTitleImplWrapper(Handle *outDebug, u32 *outPid, const FS_ProgramInfo *programInfo, const FS_ProgramInfo *programInfoUpdate, u32 launchFlags)
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{
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ExHeader_Info *exheaderInfo = ExHeaderInfoHeap_New();
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if (exheaderInfo == NULL) {
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panic(0);
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}
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ProcessData *process;
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Result res = launchTitleImpl(outDebug, &process, programInfo, programInfoUpdate, launchFlags, exheaderInfo);
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if (outPid != NULL && process != NULL) {
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*outPid = process->pid;
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}
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ExHeaderInfoHeap_Delete(exheaderInfo);
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return res;
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}
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static void LaunchTitleAsync(void *argdata)
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{
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struct {
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FS_ProgramInfo programInfo, programInfoUpdate;
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u32 launchFlags;
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} *args = argdata;
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launchTitleImplWrapper(NULL, NULL, &args->programInfo, &args->programInfoUpdate, args->launchFlags);
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}
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Result LaunchTitle(u32 *outPid, const FS_ProgramInfo *programInfo, u32 launchFlags)
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{
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ProcessData *process, *foundProcess = NULL;
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launchFlags &= ~PMLAUNCHFLAG_USE_UPDATE_TITLE;
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if (g_manager.preparingForReboot) {
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return 0xC8A05801;
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}
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u32 tidh = (u32)(programInfo->programId >> 32);
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u32 tidl = (u32)programInfo->programId;
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if ((tidh == 0x00040030 || tidh == 0x00040130) && (tidl & 0xFF) != SYSCOREVER) {
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// Panic if launching SAFE_MODE sysmodules or applets (note: exheader syscorever check above only done for applications in official PM)
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// Official PM also hardcodes SYSCOREVER = 2 here.
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panic(4);
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}
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if (g_manager.runningApplicationData != NULL && (launchFlags & PMLAUNCHFLAG_NORMAL_APPLICATION) != 0) {
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return 0xC8A05BF0;
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}
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ProcessList_Lock(&g_manager.processList);
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FOREACH_PROCESS(&g_manager.processList, process) {
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if ((process->titleId & ~0xFFULL) == (programInfo->programId & ~0xFFULL)) {
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foundProcess = process;
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break;
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}
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}
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ProcessList_Unlock(&g_manager.processList);
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if (foundProcess != NULL) {
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foundProcess->flags &= ~PROCESSFLAG_AUTOLOADED;
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if (outPid != NULL) {
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*outPid = foundProcess->pid;
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}
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return 0;
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} else {
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if (launchFlags & PMLAUNCHFLAG_QUEUE_DEBUG_APPLICATION || !(launchFlags & PMLAUNCHFLAG_NORMAL_APPLICATION)) {
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return launchTitleImplWrapper(NULL, outPid, programInfo, programInfo, launchFlags);
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} else {
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struct {
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FS_ProgramInfo programInfo, programInfoUpdate;
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u32 launchFlags;
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} args = { *programInfo, *programInfo, launchFlags };
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if (outPid != NULL) {
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*outPid = (u32)-1; // PM doesn't do that lol
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}
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TaskRunner_RunTask(LaunchTitleAsync, &args, sizeof(args));
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return 0;
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}
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}
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}
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Result LaunchTitleUpdate(const FS_ProgramInfo *programInfo, const FS_ProgramInfo *programInfoUpdate, u32 launchFlags)
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{
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if (g_manager.preparingForReboot) {
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return 0xC8A05801;
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}
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if (g_manager.runningApplicationData != NULL) {
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return 0xC8A05BF0;
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}
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if (!(launchFlags & ~PMLAUNCHFLAG_NORMAL_APPLICATION)) {
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return 0xD8E05802;
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}
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launchFlags |= PMLAUNCHFLAG_USE_UPDATE_TITLE;
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if (launchFlags & PMLAUNCHFLAG_QUEUE_DEBUG_APPLICATION) {
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return launchTitleImplWrapper(NULL, NULL, programInfo, programInfoUpdate, launchFlags);
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} else {
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struct {
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FS_ProgramInfo programInfo, programInfoUpdate;
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u32 launchFlags;
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} args = { *programInfo, *programInfoUpdate, launchFlags };
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TaskRunner_RunTask(LaunchTitleAsync, &args, sizeof(args));
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return 0;
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}
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}
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Result LaunchApp(const FS_ProgramInfo *programInfo, u32 launchFlags)
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{
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if (g_manager.runningApplicationData != NULL) {
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return 0xC8A05BF0;
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}
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assertSuccess(setAppCpuTimeLimit(0));
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return LaunchTitle(NULL, programInfo, launchFlags | PMLAUNCHFLAG_LOAD_DEPENDENCIES | PMLAUNCHFLAG_NORMAL_APPLICATION);
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}
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Result RunQueuedProcess(Handle *outDebug)
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{
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Result res = 0;
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StartupInfo si = {0};
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if (g_manager.debugData == NULL) {
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return 0xD8A05804;
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} else if ((g_manager.debugData->flags & PROCESSFLAG_NORMAL_APPLICATION) && g_manager.runningApplicationData != NULL) {
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// Not in official PM
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return 0xC8A05BF0;
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}
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ProcessData *process = g_manager.debugData;
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g_manager.debugData = NULL;
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ExHeader_Info *exheaderInfo = ExHeaderInfoHeap_New();
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if (exheaderInfo == NULL) {
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panic(0);
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}
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TRYG(LOADER_GetProgramInfo(exheaderInfo, process->programHandle), cleanup);
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TRYG(svcDebugActiveProcess(outDebug, process->pid), cleanup);
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si.priority = exheaderInfo->aci.local_caps.core_info.priority;
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si.stack_size = exheaderInfo->sci.codeset_info.stack_size;
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res = svcRun(process->handle, &si);
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if (R_SUCCEEDED(res) && process->flags & PROCESSFLAG_NORMAL_APPLICATION) {
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// Second operand not in official PM
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g_manager.runningApplicationData = process;
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notifySubscribers(0x10C);
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}
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cleanup:
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if (R_FAILED(res)) {
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process->flags &= ~PROCESSFLAG_NOTIFY_TERMINATION;
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svcTerminateProcess(process->handle);
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}
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ExHeaderInfoHeap_Delete(exheaderInfo);
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return res;
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}
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Result LaunchAppDebug(Handle *outDebug, const FS_ProgramInfo *programInfo, u32 launchFlags)
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{
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if (g_manager.debugData != NULL) {
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return RunQueuedProcess(outDebug);
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}
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if (g_manager.runningApplicationData != NULL) {
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return 0xC8A05BF0;
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}
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assertSuccess(setAppCpuTimeLimit(0));
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return launchTitleImplWrapper(outDebug, NULL, programInfo, programInfo,
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(launchFlags & ~PMLAUNCHFLAG_USE_UPDATE_TITLE) | PMLAUNCHFLAG_NORMAL_APPLICATION);
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}
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Result autolaunchSysmodules(void)
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{
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Result res = 0;
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FS_ProgramInfo programInfo = { .mediaType = MEDIATYPE_NAND };
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// Launch NS
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if (NSTID != 0) {
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programInfo.programId = NSTID;
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TRY(launchTitleImplWrapper(NULL, NULL, &programInfo, &programInfo, PMLAUNCHFLAG_LOAD_DEPENDENCIES));
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}
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return res;
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}
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