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boot2: clean up pre-0.19.0 ams contents on upgrade

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This commit is contained in:
Michael Scire 2021-03-21 04:12:30 -07:00 • committed by SciresM
parent 79e4c82d7e
commit c8404e8452
5 changed files with 127 additions and 25 deletions
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1
libraries/libstratosphere/include/stratosphere/cfg/cfg_api.hpp
View file

@ -40,6 +40,7 @@ namespace ams::cfg {
bool HasFlag(const sm::MitmProcessInfo &process_info, const char *flag);
bool HasContentSpecificFlag(ncm::ProgramId program_id, const char *flag);
bool HasGlobalFlag(const char *flag);
Result DeleteGlobalFlag(const char *flag);
/* HBL Configuration utilities. */
bool HasHblFlag(const char *flag);

79
libraries/libstratosphere/source/boot2/boot2_api.cpp
View file

@ -23,7 +23,7 @@ namespace ams::boot2 {
/* psc, bus, pcv is the minimal set of required programs to get SD card. */
/* bus depends on pcie, and pcv depends on settings. */
constexpr ncm::SystemProgramId PreSdCardLaunchPrograms[] = {
constexpr const ncm::SystemProgramId PreSdCardLaunchPrograms[] = {
ncm::SystemProgramId::Psc, /* psc */
ncm::SystemProgramId::Pcie, /* pcie */
ncm::SystemProgramId::Bus, /* bus */
@ -33,7 +33,7 @@ namespace ams::boot2 {
};
constexpr size_t NumPreSdCardLaunchPrograms = util::size(PreSdCardLaunchPrograms);
constexpr ncm::SystemProgramId AdditionalLaunchPrograms[] = {
constexpr const ncm::SystemProgramId AdditionalLaunchPrograms[] = {
ncm::SystemProgramId::Am, /* am */
ncm::SystemProgramId::NvServices, /* nvservices */
ncm::SystemProgramId::NvnFlinger, /* nvnflinger */
@ -78,7 +78,7 @@ namespace ams::boot2 {
};
constexpr size_t NumAdditionalLaunchPrograms = util::size(AdditionalLaunchPrograms);
constexpr ncm::SystemProgramId AdditionalMaintenanceLaunchPrograms[] = {
constexpr const ncm::SystemProgramId AdditionalMaintenanceLaunchPrograms[] = {
ncm::SystemProgramId::Am, /* am */
ncm::SystemProgramId::NvServices, /* nvservices */
ncm::SystemProgramId::NvnFlinger, /* nvnflinger */
@ -311,6 +311,57 @@ namespace ams::boot2 {
return hos::GetVersion() >= hos::Version_9_0_0;
}
/* Prior to 0.19.0, we distributed system modules inside /atmosphere/contents/. */
/* We need to clean these up, so that we don't break horribly on first upgrade. */
constexpr const ncm::SystemProgramId StratosphereSystemModulesForPostZeroPointNineteenPointZeroCleanup[] = {
ncm::SystemProgramId::Boot2,
ncm::SystemProgramId::Creport,
ncm::SystemProgramId::Dmnt,
ncm::SystemProgramId::Eclct,
ncm::SystemProgramId::Erpt,
ncm::SystemProgramId::Fatal,
ncm::SystemProgramId::JpegDec,
ncm::SystemProgramId::Pgl,
ncm::SystemProgramId::Ro,
};
alignas(0x40) constinit u8 g_fs_cleanup_buffer[4_KB];
lmem::HeapHandle g_fs_cleanup_heap_handle;
void *AllocateForFsForCleanup(size_t size) {
return lmem::AllocateFromExpHeap(g_fs_cleanup_heap_handle, size);
}
void DeallocateForFsForCleanup(void *p, size_t size) {
return lmem::FreeToExpHeap(g_fs_cleanup_heap_handle, p);
}
void InitializeFsHeapForCleanup() {
g_fs_cleanup_heap_handle = lmem::CreateExpHeap(g_fs_cleanup_buffer, sizeof(g_fs_cleanup_buffer), lmem::CreateOption_None);
fs::SetAllocator(AllocateForFsForCleanup, DeallocateForFsForCleanup);
}
void CleanupSdCardSystemProgramsForUpgradeToZeroPointNineteenPointZero() {
/* Temporarily mount the SD card. */
R_ABORT_UNLESS(fs::MountSdCard("sdmc"));
ON_SCOPE_EXIT { fs::Unmount("sdmc"); };
for (const auto program_id : StratosphereSystemModulesForPostZeroPointNineteenPointZeroCleanup) {
/* Get the program's contents path. */
char path[fs::EntryNameLengthMax];
util::SNPrintf(path, sizeof(path), "sdmc:/atmosphere/contents/%016lx/", program_id.value);
/* Check if we have old contents. */
bool has_dir;
R_ABORT_UNLESS(fs::HasDirectory(std::addressof(has_dir), path));
/* Cleanup the old contents, if we have them. */
if (has_dir) {
R_ABORT_UNLESS(fs::DeleteDirectoryRecursively(path));
}
}
}
}
/* Boot2 API. */
@ -370,6 +421,28 @@ namespace ams::boot2 {
}
}
/* Perform cleanup to faciliate upgrade to 0.19.0. */
/* NOTE: This will be removed in a future atmosphere revision. */
{
/* Setup FS heap for cleanup. */
InitializeFsHeapForCleanup();
/* Temporarily initialize fs. */
sm::DoWithSession([&] {
R_ABORT_UNLESS(fsInitialize());
});
ON_SCOPE_EXIT { fsExit(); };
/* Wait for the sd card to be available. */
cfg::WaitSdCardInitialized();
/* Cleanup. */
if (cfg::HasGlobalFlag("clean_stratosphere_for_0.19.0")) {
CleanupSdCardSystemProgramsForUpgradeToZeroPointNineteenPointZero();
R_ABORT_UNLESS(cfg::DeleteGlobalFlag("clean_stratosphere_for_0.19.0"));
}
}
/* Launch Atmosphere boot2, using NcmStorageId_None to force SD card boot. */
LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Boot2, ncm::StorageId::None), 0);
}

26
libraries/libstratosphere/source/cfg/cfg_flags.cpp
View file

@ -52,6 +52,26 @@ namespace ams::cfg {
return has_file;
}
Result DeleteFlagFile(const char *flag_path) {
/* We need the SD card to be available to delete anything. */
AMS_ABORT_UNLESS(IsSdCardInitialized());
/* Mount the sd card. */
char mount_name[fs::MountNameLengthMax + 1];
GetFlagMountName(mount_name);
R_TRY(fs::MountSdCard(mount_name));
ON_SCOPE_EXIT { fs::Unmount(mount_name); };
/* Get the flag path. */
char full_path[fs::EntryNameLengthMax + 1];
util::SNPrintf(full_path, sizeof(full_path), "%s:/%s", mount_name, flag_path[0] == '/' ? flag_path + 1 : flag_path);
/* Delete the file. */
R_TRY(fs::DeleteFile(full_path));
return ResultSuccess();
}
}
/* Flag utilities. */
@ -77,4 +97,10 @@ namespace ams::cfg {
return HasGlobalFlag(hbl_flag);
}
Result DeleteGlobalFlag(const char *flag) {
char global_flag[fs::EntryNameLengthMax + 1];
util::SNPrintf(global_flag, sizeof(global_flag) - 1, "/atmosphere/flags/%s.flag", flag);
return DeleteFlagFile(global_flag);
}
}

2
libraries/libstratosphere/source/fs/fs_code.cpp
View file

@ -123,7 +123,7 @@ namespace ams::fs {
/* Print a path to the program's package. */
fssrv::sf::Path sf_path;
R_TRY(FspPathPrintf(std::addressof(sf_path), "/contents/%016lX/exefs.nsp", program_id.value));
R_TRY(FspPathPrintf(std::addressof(sf_path), "/atmosphere/contents/%016lX/exefs.nsp", program_id.value));
/* Open the package within stratosphere.romfs. */
R_TRY(romfs_fs.OpenFile(std::addressof(package_file), sf_path.str, fs::OpenMode_Read));