mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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397 lines
18 KiB
C++
397 lines
18 KiB
C++
/*
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* Copyright (c) 2018-2020 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 <stratosphere.hpp>
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namespace ams::boot2 {
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namespace {
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/* Launch lists. */
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/* psc, bus, pcv is the minimal set of required programs to get SD card. */
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/* bus depends on pcie, and pcv depends on settings. */
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constexpr ncm::SystemProgramId PreSdCardLaunchPrograms[] = {
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ncm::SystemProgramId::Psc, /* psc */
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ncm::SystemProgramId::Pcie, /* pcie */
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ncm::SystemProgramId::Bus, /* bus */
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ncm::SystemProgramId::Settings, /* settings */
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ncm::SystemProgramId::Pcv, /* pcv */
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ncm::SystemProgramId::Usb, /* usb */
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};
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constexpr size_t NumPreSdCardLaunchPrograms = util::size(PreSdCardLaunchPrograms);
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constexpr ncm::SystemProgramId AdditionalLaunchPrograms[] = {
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ncm::SystemProgramId::Tma, /* tma */
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ncm::SystemProgramId::Am, /* am */
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ncm::SystemProgramId::NvServices, /* nvservices */
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ncm::SystemProgramId::NvnFlinger, /* nvnflinger */
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ncm::SystemProgramId::Vi, /* vi */
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ncm::SystemProgramId::Pgl, /* pgl */
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ncm::SystemProgramId::Ns, /* ns */
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ncm::SystemProgramId::LogManager, /* lm */
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ncm::SystemProgramId::Ppc, /* ppc */
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ncm::SystemProgramId::Ptm, /* ptm */
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ncm::SystemProgramId::Hid, /* hid */
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ncm::SystemProgramId::Audio, /* audio */
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ncm::SystemProgramId::Lbl, /* lbl */
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ncm::SystemProgramId::Wlan, /* wlan */
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ncm::SystemProgramId::Bluetooth, /* bluetooth */
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ncm::SystemProgramId::BsdSockets, /* bsdsockets */
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ncm::SystemProgramId::Nifm, /* nifm */
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ncm::SystemProgramId::Ldn, /* ldn */
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ncm::SystemProgramId::Account, /* account */
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ncm::SystemProgramId::Friends, /* friends */
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ncm::SystemProgramId::Nfc, /* nfc */
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ncm::SystemProgramId::JpegDec, /* jpegdec */
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ncm::SystemProgramId::CapSrv, /* capsrv */
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ncm::SystemProgramId::Ssl, /* ssl */
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ncm::SystemProgramId::Nim, /* nim */
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ncm::SystemProgramId::Bcat, /* bcat */
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ncm::SystemProgramId::Erpt, /* erpt */
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ncm::SystemProgramId::Es, /* es */
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ncm::SystemProgramId::Pctl, /* pctl */
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ncm::SystemProgramId::Btm, /* btm */
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ncm::SystemProgramId::Eupld, /* eupld */
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ncm::SystemProgramId::Glue, /* glue */
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/* ncm::SystemProgramId::Eclct, */ /* eclct */ /* Skip launching error collection in Atmosphere to lessen telemetry. */
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ncm::SystemProgramId::Npns, /* npns */
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ncm::SystemProgramId::Fatal, /* fatal */
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ncm::SystemProgramId::Ro, /* ro */
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ncm::SystemProgramId::Profiler, /* profiler */
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ncm::SystemProgramId::Sdb, /* sdb */
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ncm::SystemProgramId::Migration, /* migration */
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ncm::SystemProgramId::Grc, /* grc */
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ncm::SystemProgramId::Olsc, /* olsc */
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ncm::SystemProgramId::Ngct, /* ngct */
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};
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constexpr size_t NumAdditionalLaunchPrograms = util::size(AdditionalLaunchPrograms);
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constexpr ncm::SystemProgramId AdditionalMaintenanceLaunchPrograms[] = {
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ncm::SystemProgramId::Tma, /* tma */
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ncm::SystemProgramId::Am, /* am */
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ncm::SystemProgramId::NvServices, /* nvservices */
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ncm::SystemProgramId::NvnFlinger, /* nvnflinger */
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ncm::SystemProgramId::Vi, /* vi */
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ncm::SystemProgramId::Pgl, /* pgl */
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ncm::SystemProgramId::Ns, /* ns */
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ncm::SystemProgramId::LogManager, /* lm */
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ncm::SystemProgramId::Ppc, /* ppc */
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ncm::SystemProgramId::Ptm, /* ptm */
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ncm::SystemProgramId::Hid, /* hid */
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ncm::SystemProgramId::Audio, /* audio */
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ncm::SystemProgramId::Lbl, /* lbl */
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ncm::SystemProgramId::Wlan, /* wlan */
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ncm::SystemProgramId::Bluetooth, /* bluetooth */
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ncm::SystemProgramId::BsdSockets, /* bsdsockets */
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ncm::SystemProgramId::Nifm, /* nifm */
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ncm::SystemProgramId::Ldn, /* ldn */
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ncm::SystemProgramId::Account, /* account */
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ncm::SystemProgramId::Nfc, /* nfc */
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ncm::SystemProgramId::JpegDec, /* jpegdec */
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ncm::SystemProgramId::CapSrv, /* capsrv */
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ncm::SystemProgramId::Ssl, /* ssl */
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ncm::SystemProgramId::Nim, /* nim */
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ncm::SystemProgramId::Erpt, /* erpt */
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ncm::SystemProgramId::Es, /* es */
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ncm::SystemProgramId::Pctl, /* pctl */
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ncm::SystemProgramId::Btm, /* btm */
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ncm::SystemProgramId::Glue, /* glue */
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/* ncm::SystemProgramId::Eclct, */ /* eclct */ /* Skip launching error collection in Atmosphere to lessen telemetry. */
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ncm::SystemProgramId::Fatal, /* fatal */
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ncm::SystemProgramId::Ro, /* ro */
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ncm::SystemProgramId::Profiler, /* profiler */
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ncm::SystemProgramId::Sdb, /* sdb */
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ncm::SystemProgramId::Migration, /* migration */
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ncm::SystemProgramId::Grc, /* grc */
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ncm::SystemProgramId::Olsc, /* olsc */
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ncm::SystemProgramId::Ngct, /* ngct */
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};
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constexpr size_t NumAdditionalMaintenanceLaunchPrograms = util::size(AdditionalMaintenanceLaunchPrograms);
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/* Helpers. */
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inline bool IsHexadecimal(const char *str) {
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while (*str) {
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if (!std::isxdigit(static_cast<unsigned char>(*(str++)))) {
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return false;
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}
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}
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return true;
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}
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inline bool IsNewLine(char c) {
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return c == '\r' || c == '\n';
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}
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inline bool IsAllowedLaunchProgram(const ncm::ProgramLocation &loc) {
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if (loc.program_id == ncm::SystemProgramId::Pgl) {
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return hos::GetVersion() >= hos::Version_10_0_0;
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}
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return true;
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}
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void LaunchProgram(os::ProcessId *out_process_id, const ncm::ProgramLocation &loc, u32 launch_flags) {
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os::ProcessId process_id = os::InvalidProcessId;
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/* Only launch the process if we're allowed to. */
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if (IsAllowedLaunchProgram(loc)) {
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/* Launch, lightly validate result. */
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{
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const auto launch_result = pm::shell::LaunchProgram(&process_id, loc, launch_flags);
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AMS_ABORT_UNLESS(!(svc::ResultOutOfResource::Includes(launch_result)));
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AMS_ABORT_UNLESS(!(svc::ResultOutOfMemory::Includes(launch_result)));
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AMS_ABORT_UNLESS(!(svc::ResultLimitReached::Includes(launch_result)));
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}
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if (out_process_id) {
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*out_process_id = process_id;
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}
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}
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}
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void LaunchList(const ncm::SystemProgramId *launch_list, size_t num_entries) {
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for (size_t i = 0; i < num_entries; i++) {
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(launch_list[i], ncm::StorageId::BuiltInSystem), 0);
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}
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}
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bool GetGpioPadLow(DeviceCode device_code) {
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gpio::GpioPadSession button;
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if (R_FAILED(gpio::OpenSession(std::addressof(button), device_code))) {
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return false;
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}
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/* Ensure we close even on early return. */
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ON_SCOPE_EXIT { gpio::CloseSession(std::addressof(button)); };
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/* Set direction input. */
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gpio::SetDirection(std::addressof(button), gpio::Direction_Input);
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return gpio::GetValue(std::addressof(button)) == gpio::GpioValue_Low;
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}
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bool IsForceMaintenance() {
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u8 force_maintenance = 1;
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settings::fwdbg::GetSettingsItemValue(&force_maintenance, sizeof(force_maintenance), "boot", "force_maintenance");
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return force_maintenance != 0;
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}
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bool IsMaintenanceMode() {
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/* Contact set:sys, retrieve boot!force_maintenance. */
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if (IsForceMaintenance()) {
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return true;
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}
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/* Contact GPIO, read plus/minus buttons. */
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{
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return GetGpioPadLow(gpio::DeviceCode_ButtonVolUp) && GetGpioPadLow(gpio::DeviceCode_ButtonVolDn);
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}
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}
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template<typename F>
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void IterateOverFlaggedProgramsOnSdCard(F f) {
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/* Validate that the contents directory exists. */
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fs::DirectoryHandle contents_dir;
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if (R_FAILED(fs::OpenDirectory(&contents_dir, "sdmc:/atmosphere/contents", fs::OpenDirectoryMode_Directory))) {
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return;
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}
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ON_SCOPE_EXIT { fs::CloseDirectory(contents_dir); };
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/* Iterate over entries in the contents directory */
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fs::DirectoryEntry entry;
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s64 count;
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while (R_SUCCEEDED(fs::ReadDirectory(&count, &entry, contents_dir, 1)) && count == 1) {
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/* Check that the subdirectory can be converted to a program id. */
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if (std::strlen(entry.name) == 2 * sizeof(ncm::ProgramId) && IsHexadecimal(entry.name)) {
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/* Check if we've already launched the program. */
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ncm::ProgramId program_id{std::strtoul(entry.name, nullptr, 16)};
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/* Check if the program is flagged. */
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if (!cfg::HasContentSpecificFlag(program_id, "boot2")) {
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continue;
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}
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/* Call the iteration callback. */
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f(program_id);
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}
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}
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}
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void DetectAndDeclareFutureMitms() {
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IterateOverFlaggedProgramsOnSdCard([](ncm::ProgramId program_id) {
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/* When we find a flagged program, check if it has a mitm list. */
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char mitm_list[0x400];
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size_t mitm_list_size = 0;
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/* Read the mitm list off the SD card. */
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{
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char path[fs::EntryNameLengthMax];
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util::SNPrintf(path, sizeof(path), "sdmc:/atmosphere/contents/%016lx/mitm.lst", static_cast<u64>(program_id));
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fs::FileHandle f;
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if (R_FAILED(fs::OpenFile(&f, path, fs::OpenMode_Read))) {
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return;
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}
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ON_SCOPE_EXIT { fs::CloseFile(f); };
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R_ABORT_UNLESS(fs::ReadFile(&mitm_list_size, f, 0, mitm_list, sizeof(mitm_list)));
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}
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/* Validate read size. */
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if (mitm_list_size > sizeof(mitm_list) || mitm_list_size == 0) {
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return;
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}
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/* Iterate over the contents of the file. */
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/* We expect one service name per non-empty line, 1-8 characters. */
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size_t offset = 0;
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while (offset < mitm_list_size) {
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/* Continue to the start of the next name. */
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while (IsNewLine(mitm_list[offset])) {
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offset++;
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}
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if (offset >= mitm_list_size) {
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break;
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}
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/* Get the length of the current name. */
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size_t name_len;
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for (name_len = 0; name_len <= sizeof(sm::ServiceName) && offset + name_len < mitm_list_size; name_len++) {
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if (IsNewLine(mitm_list[offset + name_len])) {
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break;
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}
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}
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/* Allow empty lines. */
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if (name_len == 0) {
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continue;
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}
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/* Don't allow invalid lines. */
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AMS_ABORT_UNLESS(name_len <= sizeof(sm::ServiceName));
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/* Declare the service. */
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R_ABORT_UNLESS(sm::mitm::DeclareFutureMitm(sm::ServiceName::Encode(mitm_list + offset, name_len)));
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/* Advance to the next line. */
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offset += name_len;
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}
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});
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}
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void LaunchFlaggedProgramsOnSdCard() {
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IterateOverFlaggedProgramsOnSdCard([](ncm::ProgramId program_id) {
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/* Check if we've already launched the program. */
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if (pm::info::HasLaunchedBootProgram(program_id)) {
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return;
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}
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/* Launch the program. */
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(program_id, ncm::StorageId::None), 0);
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});
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}
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}
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/* Boot2 API. */
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void LaunchPreSdCardBootProgramsAndBoot2() {
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/* This code is normally run by PM. */
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/* Wait until fs.mitm has installed itself. We want this to happen as early as possible. */
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R_ABORT_UNLESS(sm::mitm::WaitMitm(sm::ServiceName::Encode("fsp-srv")));
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/* Launch programs required to mount the SD card. */
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/* psc, bus, pcv (and usb on newer firmwares) is the minimal set of required programs. */
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/* bus depends on pcie, and pcv depends on settings. */
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{
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/* Launch psc. */
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Psc, ncm::StorageId::BuiltInSystem), 0);
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/* Launch pcie. */
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Pcie, ncm::StorageId::BuiltInSystem), 0);
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/* Launch bus. */
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Bus, ncm::StorageId::BuiltInSystem), 0);
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/* Launch settings. */
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Settings, ncm::StorageId::BuiltInSystem), 0);
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/* NOTE: Here we work around a race condition in the boot process by ensuring that settings initializes its db. */
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{
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/* Connect to set:sys. */
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sm::ScopedServiceHolder<::setsysInitialize, ::setsysExit> setsys_holder;
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AMS_ABORT_UNLESS(setsys_holder);
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/* Retrieve setting from the database. */
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u8 force_maintenance = 0;
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settings::fwdbg::GetSettingsItemValue(&force_maintenance, sizeof(force_maintenance), "boot", "force_maintenance");
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}
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/* Launch pcv. */
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Pcv, ncm::StorageId::BuiltInSystem), 0);
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/* Launch usb. */
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Usb, ncm::StorageId::BuiltInSystem), 0);
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}
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/* Wait for the SD card required services to be ready. */
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cfg::WaitSdCardRequiredServicesReady();
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/* Wait for other atmosphere mitm modules to initialize. */
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R_ABORT_UNLESS(sm::mitm::WaitMitm(sm::ServiceName::Encode("set:sys")));
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if (spl::GetSocType() == spl::SocType_Erista) {
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if (hos::GetVersion() >= hos::Version_2_0_0) {
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R_ABORT_UNLESS(sm::mitm::WaitMitm(sm::ServiceName::Encode("bpc")));
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} else {
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R_ABORT_UNLESS(sm::mitm::WaitMitm(sm::ServiceName::Encode("bpc:c")));
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}
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}
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/* Launch Atmosphere boot2, using NcmStorageId_None to force SD card boot. */
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Boot2, ncm::StorageId::None), 0);
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}
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void LaunchPostSdCardBootPrograms() {
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/* This code is normally run by boot2. */
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/* Find out whether we are maintenance mode. */
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const bool maintenance = IsMaintenanceMode();
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if (maintenance) {
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pm::bm::SetMaintenanceBoot();
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}
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/* Launch Atmosphere dmnt, using NcmStorageId_None to force SD card boot. */
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Dmnt, ncm::StorageId::None), 0);
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/* Check for and forward declare non-atmosphere mitm modules. */
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DetectAndDeclareFutureMitms();
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/* Launch additional programs. */
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if (maintenance) {
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LaunchList(AdditionalMaintenanceLaunchPrograms, NumAdditionalMaintenanceLaunchPrograms);
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/* Starting in 7.0.0, npns is launched during maintenance boot. */
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if (hos::GetVersion() >= hos::Version_7_0_0) {
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LaunchProgram(nullptr, ncm::ProgramLocation::Make(ncm::SystemProgramId::Npns, ncm::StorageId::BuiltInSystem), 0);
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}
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} else {
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LaunchList(AdditionalLaunchPrograms, NumAdditionalLaunchPrograms);
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}
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/* Launch user programs off of the SD. */
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LaunchFlaggedProgramsOnSdCard();
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}
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}
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