Atmosphere/stratosphere/pm/source/boot2/boot2_api.cpp
2019-07-11 22:24:59 -07:00

295 lines
12 KiB
C++

/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cctype>
#include <dirent.h>
#include <stratosphere/cfg.hpp>
#include <stratosphere/ldr.hpp>
#include <stratosphere/pm.hpp>
#include "boot2_api.hpp"
namespace sts::boot2 {
namespace {
/* Launch lists. */
/* psc, bus, pcv is the minimal set of required titles to get SD card. */
/* bus depends on pcie, and pcv depends on settings. */
constexpr ncm::TitleId PreSdCardLaunchPrograms[] = {
ncm::TitleId{TitleId_Psc}, /* psc */
ncm::TitleId{TitleId_Pcie}, /* pcie */
ncm::TitleId{TitleId_Bus}, /* bus */
ncm::TitleId{TitleId_Settings}, /* settings */
ncm::TitleId{TitleId_Pcv}, /* pcv */
};
constexpr size_t NumPreSdCardLaunchPrograms = sizeof(PreSdCardLaunchPrograms) / sizeof(PreSdCardLaunchPrograms[0]);
constexpr ncm::TitleId AdditionalLaunchPrograms[] = {
ncm::TitleId{TitleId_Usb}, /* usb */
ncm::TitleId{TitleId_Tma}, /* tma */
ncm::TitleId{TitleId_Am}, /* am */
ncm::TitleId{TitleId_NvServices}, /* nvservices */
ncm::TitleId{TitleId_NvnFlinger}, /* nvnflinger */
ncm::TitleId{TitleId_Vi}, /* vi */
ncm::TitleId{TitleId_Ns}, /* ns */
ncm::TitleId{TitleId_LogManager}, /* lm */
ncm::TitleId{TitleId_Ppc}, /* ppc */
ncm::TitleId{TitleId_Ptm}, /* ptm */
ncm::TitleId{TitleId_Hid}, /* hid */
ncm::TitleId{TitleId_Audio}, /* audio */
ncm::TitleId{TitleId_Lbl}, /* lbl */
ncm::TitleId{TitleId_Wlan}, /* wlan */
ncm::TitleId{TitleId_Bluetooth}, /* bluetooth */
ncm::TitleId{TitleId_BsdSockets}, /* bsdsockets */
ncm::TitleId{TitleId_Nifm}, /* nifm */
ncm::TitleId{TitleId_Ldn}, /* ldn */
ncm::TitleId{TitleId_Account}, /* account */
ncm::TitleId{TitleId_Friends}, /* friends */
ncm::TitleId{TitleId_Nfc}, /* nfc */
ncm::TitleId{TitleId_JpegDec}, /* jpegdec */
ncm::TitleId{TitleId_CapSrv}, /* capsrv */
ncm::TitleId{TitleId_Ssl}, /* ssl */
ncm::TitleId{TitleId_Nim}, /* nim */
ncm::TitleId{TitleId_Bcat}, /* bcat */
ncm::TitleId{TitleId_Erpt}, /* erpt */
ncm::TitleId{TitleId_Es}, /* es */
ncm::TitleId{TitleId_Pctl}, /* pctl */
ncm::TitleId{TitleId_Btm}, /* btm */
ncm::TitleId{TitleId_Eupld}, /* eupld */
ncm::TitleId{TitleId_Glue}, /* glue */
/* ncm::TitleId{TitleId_Eclct}, */ /* eclct */ /* Skip launching error collection in Atmosphere to lessen telemetry. */
ncm::TitleId{TitleId_Npns}, /* npns */
ncm::TitleId{TitleId_Fatal}, /* fatal */
ncm::TitleId{TitleId_Ro}, /* ro */
ncm::TitleId{TitleId_Profiler}, /* profiler */
ncm::TitleId{TitleId_Sdb}, /* sdb */
ncm::TitleId{TitleId_Migration}, /* migration */
ncm::TitleId{TitleId_Grc}, /* grc */
ncm::TitleId{TitleId_Olsc}, /* olsc */
};
constexpr size_t NumAdditionalLaunchPrograms = sizeof(AdditionalLaunchPrograms) / sizeof(AdditionalLaunchPrograms[0]);
constexpr ncm::TitleId AdditionalMaintenanceLaunchPrograms[] = {
ncm::TitleId{TitleId_Usb}, /* usb */
ncm::TitleId{TitleId_Tma}, /* tma */
ncm::TitleId{TitleId_Am}, /* am */
ncm::TitleId{TitleId_NvServices}, /* nvservices */
ncm::TitleId{TitleId_NvnFlinger}, /* nvnflinger */
ncm::TitleId{TitleId_Vi}, /* vi */
ncm::TitleId{TitleId_Ns}, /* ns */
ncm::TitleId{TitleId_LogManager}, /* lm */
ncm::TitleId{TitleId_Ppc}, /* ppc */
ncm::TitleId{TitleId_Ptm}, /* ptm */
ncm::TitleId{TitleId_Hid}, /* hid */
ncm::TitleId{TitleId_Audio}, /* audio */
ncm::TitleId{TitleId_Lbl}, /* lbl */
ncm::TitleId{TitleId_Wlan}, /* wlan */
ncm::TitleId{TitleId_Bluetooth}, /* bluetooth */
ncm::TitleId{TitleId_BsdSockets}, /* bsdsockets */
ncm::TitleId{TitleId_Nifm}, /* nifm */
ncm::TitleId{TitleId_Ldn}, /* ldn */
ncm::TitleId{TitleId_Account}, /* account */
ncm::TitleId{TitleId_Nfc}, /* nfc */
ncm::TitleId{TitleId_JpegDec}, /* jpegdec */
ncm::TitleId{TitleId_CapSrv}, /* capsrv */
ncm::TitleId{TitleId_Ssl}, /* ssl */
ncm::TitleId{TitleId_Nim}, /* nim */
ncm::TitleId{TitleId_Erpt}, /* erpt */
ncm::TitleId{TitleId_Es}, /* es */
ncm::TitleId{TitleId_Pctl}, /* pctl */
ncm::TitleId{TitleId_Btm}, /* btm */
ncm::TitleId{TitleId_Glue}, /* glue */
/* ncm::TitleId{TitleId_Eclct}, */ /* eclct */ /* Skip launching error collection in Atmosphere to lessen telemetry. */
ncm::TitleId{TitleId_Fatal}, /* fatal */
ncm::TitleId{TitleId_Ro}, /* ro */
ncm::TitleId{TitleId_Profiler}, /* profiler */
ncm::TitleId{TitleId_Sdb}, /* sdb */
ncm::TitleId{TitleId_Migration}, /* migration */
ncm::TitleId{TitleId_Grc}, /* grc */
ncm::TitleId{TitleId_Olsc}, /* olsc */
};
constexpr size_t NumAdditionalMaintenanceLaunchPrograms = sizeof(AdditionalMaintenanceLaunchPrograms) / sizeof(AdditionalMaintenanceLaunchPrograms[0]);
/* Helpers. */
inline bool IsHexadecimal(const char *str) {
while (*str) {
if (!std::isxdigit(static_cast<unsigned char>(*(str++)))) {
return false;
}
}
return true;
}
void LaunchTitle(u64 *out_process_id, const ncm::TitleLocation &loc, u32 launch_flags) {
u64 process_id = 0;
/* Don't launch a title twice during boot2. */
if (pm::info::HasLaunchedTitle(loc.title_id)) {
return;
}
switch (pm::shell::LaunchTitle(&process_id, loc, launch_flags)) {
case ResultKernelResourceExhausted:
/* Out of resource! */
std::abort();
case ResultKernelOutOfMemory:
/* Out of memory! */
std::abort();
case ResultKernelLimitReached:
/* Limit Reached! */
std::abort();
default:
/* We don't care about other issues. */
break;
}
if (out_process_id) {
*out_process_id = process_id;
}
}
void LaunchList(const ncm::TitleId *launch_list, size_t num_entries) {
for (size_t i = 0; i < num_entries; i++) {
LaunchTitle(nullptr, ncm::MakeTitleLocation(launch_list[i], ncm::StorageId::NandSystem), 0);
}
}
bool GetGpioPadLow(GpioPadName pad) {
GpioPadSession button;
if (R_FAILED(gpioOpenSession(&button, pad))) {
return false;
}
/* Ensure we close even on early return. */
ON_SCOPE_EXIT { gpioPadClose(&button); };
/* Set direction input. */
gpioPadSetDirection(&button, GpioDirection_Input);
GpioValue val;
return R_SUCCEEDED(gpioPadGetValue(&button, &val)) && val == GpioValue_Low;
}
bool IsMaintenanceMode() {
/* Contact set:sys, retrieve boot!force_maintenance. */
DoWithSmSession([&]() {
R_ASSERT(setsysInitialize());
});
{
ON_SCOPE_EXIT { setsysExit(); };
u8 force_maintenance = 1;
setsysGetSettingsItemValue("boot", "force_maintenance", &force_maintenance, sizeof(force_maintenance));
if (force_maintenance != 0) {
return true;
}
}
/* Contact GPIO, read plus/minus buttons. */
DoWithSmSession([&]() {
R_ASSERT(gpioInitialize());
});
{
ON_SCOPE_EXIT { gpioExit(); };
return GetGpioPadLow(GpioPadName_ButtonVolUp) && GetGpioPadLow(GpioPadName_ButtonVolDown);
}
}
void WaitForMitm(const char *service) {
const auto name = sts::sm::ServiceName::Encode(service);
while (true) {
bool mitm_installed = false;
R_ASSERT(sts::sm::mitm::HasMitm(&mitm_installed, name));
if (mitm_installed) {
break;
}
svcSleepThread(1'000'000ull);
}
}
void LaunchFlaggedProgramsFromSdCard() {
/* Allow for user-customizable programs. */
DIR *titles_dir = opendir("sdmc:/atmosphere/titles");
struct dirent *ent;
if (titles_dir != NULL) {
while ((ent = readdir(titles_dir)) != NULL) {
if (strlen(ent->d_name) == 2 * sizeof(u64) && IsHexadecimal(ent->d_name)) {
ncm::TitleId title_id{strtoul(ent->d_name, NULL, 16)};
if (pm::info::HasLaunchedTitle(title_id)) {
return;
}
char title_path[FS_MAX_PATH];
std::snprintf(title_path, sizeof(title_path), "sdmc:/atmosphere/titles/%s/flags/boot2.flag", ent->d_name);
FILE *f_flag = fopen(title_path, "rb");
if (f_flag != NULL) {
fclose(f_flag);
LaunchTitle(nullptr, ncm::MakeTitleLocation(title_id, ncm::StorageId::None), 0);
}
}
}
closedir(titles_dir);
}
}
}
/* Boot2 API. */
void LaunchBootPrograms() {
/* Wait until fs.mitm has installed itself. We want this to happen as early as possible. */
WaitForMitm("fsp-srv");
/* Launch programs required to mount the SD card. */
LaunchList(PreSdCardLaunchPrograms, NumPreSdCardLaunchPrograms);
/* At this point, the SD card can be mounted. */
cfg::WaitSdCardInitialized();
R_ASSERT(fsdevMountSdmc());
/* Find out whether we are maintenance mode. */
const bool maintenance = IsMaintenanceMode();
if (maintenance) {
pm::bm::SetMaintenanceBoot();
}
/* Wait for other atmosphere mitm modules to initialize. */
if (GetRuntimeFirmwareVersion() >= FirmwareVersion_200) {
WaitForMitm("bpc");
} else {
WaitForMitm("bpc:c");
}
/* Launch Atmosphere dmnt, using FsStorageId_None to force SD card boot. */
LaunchTitle(nullptr, ncm::MakeTitleLocation(ncm::TitleId{TitleId_Dmnt}, ncm::StorageId::None), 0);
/* Launch additional programs. */
if (maintenance) {
LaunchList(AdditionalMaintenanceLaunchPrograms, NumAdditionalMaintenanceLaunchPrograms);
} else {
LaunchList(AdditionalLaunchPrograms, NumAdditionalLaunchPrograms);
}
/* Launch user programs off of the SD. */
LaunchFlaggedProgramsFromSdCard();
/* We no longer need the SD card. */
fsdevUnmountAll();
}
}