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

275 lines
11 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::Psc, /* psc */
ncm::TitleId::Pcie, /* pcie */
ncm::TitleId::Bus, /* bus */
ncm::TitleId::Settings, /* settings */
ncm::TitleId::Pcv, /* pcv */
};
constexpr size_t NumPreSdCardLaunchPrograms = util::size(PreSdCardLaunchPrograms);
constexpr ncm::TitleId AdditionalLaunchPrograms[] = {
ncm::TitleId::Usb, /* usb */
ncm::TitleId::Tma, /* tma */
ncm::TitleId::Am, /* am */
ncm::TitleId::NvServices, /* nvservices */
ncm::TitleId::NvnFlinger, /* nvnflinger */
ncm::TitleId::Vi, /* vi */
ncm::TitleId::Ns, /* ns */
ncm::TitleId::LogManager, /* lm */
ncm::TitleId::Ppc, /* ppc */
ncm::TitleId::Ptm, /* ptm */
ncm::TitleId::Hid, /* hid */
ncm::TitleId::Audio, /* audio */
ncm::TitleId::Lbl, /* lbl */
ncm::TitleId::Wlan, /* wlan */
ncm::TitleId::Bluetooth, /* bluetooth */
ncm::TitleId::BsdSockets, /* bsdsockets */
ncm::TitleId::Nifm, /* nifm */
ncm::TitleId::Ldn, /* ldn */
ncm::TitleId::Account, /* account */
ncm::TitleId::Friends, /* friends */
ncm::TitleId::Nfc, /* nfc */
ncm::TitleId::JpegDec, /* jpegdec */
ncm::TitleId::CapSrv, /* capsrv */
ncm::TitleId::Ssl, /* ssl */
ncm::TitleId::Nim, /* nim */
ncm::TitleId::Bcat, /* bcat */
ncm::TitleId::Erpt, /* erpt */
ncm::TitleId::Es, /* es */
ncm::TitleId::Pctl, /* pctl */
ncm::TitleId::Btm, /* btm */
ncm::TitleId::Eupld, /* eupld */
ncm::TitleId::Glue, /* glue */
/* ncm::TitleId::Eclct, */ /* eclct */ /* Skip launching error collection in Atmosphere to lessen telemetry. */
ncm::TitleId::Npns, /* npns */
ncm::TitleId::Fatal, /* fatal */
ncm::TitleId::Ro, /* ro */
ncm::TitleId::Profiler, /* profiler */
ncm::TitleId::Sdb, /* sdb */
ncm::TitleId::Migration, /* migration */
ncm::TitleId::Grc, /* grc */
ncm::TitleId::Olsc, /* olsc */
};
constexpr size_t NumAdditionalLaunchPrograms = util::size(AdditionalLaunchPrograms);
constexpr ncm::TitleId AdditionalMaintenanceLaunchPrograms[] = {
ncm::TitleId::Usb, /* usb */
ncm::TitleId::Tma, /* tma */
ncm::TitleId::Am, /* am */
ncm::TitleId::NvServices, /* nvservices */
ncm::TitleId::NvnFlinger, /* nvnflinger */
ncm::TitleId::Vi, /* vi */
ncm::TitleId::Ns, /* ns */
ncm::TitleId::LogManager, /* lm */
ncm::TitleId::Ppc, /* ppc */
ncm::TitleId::Ptm, /* ptm */
ncm::TitleId::Hid, /* hid */
ncm::TitleId::Audio, /* audio */
ncm::TitleId::Lbl, /* lbl */
ncm::TitleId::Wlan, /* wlan */
ncm::TitleId::Bluetooth, /* bluetooth */
ncm::TitleId::BsdSockets, /* bsdsockets */
ncm::TitleId::Nifm, /* nifm */
ncm::TitleId::Ldn, /* ldn */
ncm::TitleId::Account, /* account */
ncm::TitleId::Nfc, /* nfc */
ncm::TitleId::JpegDec, /* jpegdec */
ncm::TitleId::CapSrv, /* capsrv */
ncm::TitleId::Ssl, /* ssl */
ncm::TitleId::Nim, /* nim */
ncm::TitleId::Erpt, /* erpt */
ncm::TitleId::Es, /* es */
ncm::TitleId::Pctl, /* pctl */
ncm::TitleId::Btm, /* btm */
ncm::TitleId::Glue, /* glue */
/* ncm::TitleId::Eclct, */ /* eclct */ /* Skip launching error collection in Atmosphere to lessen telemetry. */
ncm::TitleId::Fatal, /* fatal */
ncm::TitleId::Ro, /* ro */
ncm::TitleId::Profiler, /* profiler */
ncm::TitleId::Sdb, /* sdb */
ncm::TitleId::Migration, /* migration */
ncm::TitleId::Grc, /* grc */
ncm::TitleId::Olsc, /* olsc */
};
constexpr size_t NumAdditionalMaintenanceLaunchPrograms = util::size(AdditionalMaintenanceLaunchPrograms);
/* 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;
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::TitleLocation::Make(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. */
{
auto set_sys_holder = sm::ScopedServiceHolder<setsysInitialize, setsysExit>();
R_ASSERT(set_sys_holder.GetResult());
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. */
{
auto gpio_holder = sm::ScopedServiceHolder<gpioInitialize, gpioExit>();
R_ASSERT(gpio_holder.GetResult());
return GetGpioPadLow(GpioPadName_ButtonVolUp) && GetGpioPadLow(GpioPadName_ButtonVolDown);
}
}
void LaunchFlaggedProgramsFromSdCard() {
/* Allow for user-customizable programs. */
DIR *titles_dir = opendir("sdmc:/atmosphere/titles");
struct dirent *ent;
if (titles_dir != nullptr) {
ON_SCOPE_EXIT { closedir(titles_dir); };
while ((ent = readdir(titles_dir)) != nullptr) {
if (strlen(ent->d_name) == 2 * sizeof(u64) && IsHexadecimal(ent->d_name)) {
ncm::TitleId title_id{strtoul(ent->d_name, nullptr, 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 != nullptr) {
fclose(f_flag);
LaunchTitle(nullptr, ncm::TitleLocation::Make(title_id, ncm::StorageId::None), 0);
}
}
}
}
}
}
/* Boot2 API. */
void LaunchBootPrograms() {
/* Wait until fs.mitm has installed itself. We want this to happen as early as possible. */
R_ASSERT(sm::mitm::WaitMitm(sm::ServiceName::Encode("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. */
R_ASSERT(sm::mitm::WaitMitm(sm::ServiceName::Encode("set:sys")));
if (GetRuntimeFirmwareVersion() >= FirmwareVersion_200) {
R_ASSERT(sm::mitm::WaitMitm(sm::ServiceName::Encode("bpc")));
} else {
R_ASSERT(sm::mitm::WaitMitm(sm::ServiceName::Encode("bpc:c")));
}
/* Launch Atmosphere dmnt, using FsStorageId_None to force SD card boot. */
LaunchTitle(nullptr, ncm::TitleLocation::Make(ncm::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();
}
}