mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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298 lines
10 KiB
C++
298 lines
10 KiB
C++
/*
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* Copyright (c) 2018-2019 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 <cstdlib>
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#include <cstdint>
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#include <cstdio>
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#include <cstring>
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#include <dirent.h>
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#include <malloc.h>
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#include <switch.h>
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#include <stratosphere.hpp>
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#include "pm_boot2.hpp"
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#include "pm_registration.hpp"
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#include "pm_boot_mode.hpp"
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static std::vector<u64> g_launched_titles;
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static bool IsHexadecimal(const char *str) {
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while (*str) {
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if (isxdigit(*str)) {
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str++;
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} else {
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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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static bool HasLaunchedTitle(u64 title_id) {
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return std::find(g_launched_titles.begin(), g_launched_titles.end(), title_id) != g_launched_titles.end();
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}
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static void SetLaunchedTitle(u64 title_id) {
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g_launched_titles.push_back(title_id);
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}
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static void ClearLaunchedTitles() {
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g_launched_titles.clear();
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}
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static void LaunchTitle(u64 title_id, FsStorageId storage_id, u32 launch_flags, u64 *pid) {
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u64 local_pid = 0;
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/* Don't launch a title twice during boot2. */
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if (HasLaunchedTitle(title_id)) {
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return;
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}
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Result rc = Registration::LaunchProcessByTidSid(Registration::TidSid{title_id, storage_id}, launch_flags, &local_pid);
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switch (rc) {
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case ResultKernelResourceExhausted:
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/* Out of resource! */
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std::abort();
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break;
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case ResultKernelOutOfMemory:
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/* Out of memory! */
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std::abort();
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break;
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case ResultKernelLimitReached:
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/* Limit Reached! */
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std::abort();
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break;
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default:
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/* We don't care about other issues. */
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break;
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}
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if (pid) {
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*pid = local_pid;
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}
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if (R_SUCCEEDED(rc)) {
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SetLaunchedTitle(title_id);
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}
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}
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static bool GetGpioPadLow(GpioPadName pad) {
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GpioPadSession button;
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if (R_FAILED(gpioOpenSession(&button, pad))) {
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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 { gpioPadClose(&button); };
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/* Set direction input. */
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gpioPadSetDirection(&button, GpioDirection_Input);
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GpioValue val;
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return R_SUCCEEDED(gpioPadGetValue(&button, &val)) && val == GpioValue_Low;
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}
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static bool IsMaintenanceMode() {
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/* Contact set:sys, retrieve boot!force_maintenance. */
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if (R_SUCCEEDED(setsysInitialize())) {
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ON_SCOPE_EXIT { setsysExit(); };
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u8 force_maintenance = 1;
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setsysGetSettingsItemValue("boot", "force_maintenance", &force_maintenance, sizeof(force_maintenance));
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if (force_maintenance != 0) {
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return true;
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}
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}
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/* Contact GPIO, read plus/minus buttons. */
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if (R_SUCCEEDED(gpioInitialize())) {
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ON_SCOPE_EXIT { gpioExit(); };
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return GetGpioPadLow(GpioPadName_ButtonVolUp) && GetGpioPadLow(GpioPadName_ButtonVolDown);
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}
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return false;
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}
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static const std::tuple<u64, bool> g_additional_launch_programs[] = {
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{TitleId_Am, true}, /* am */
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{TitleId_NvServices, true}, /* nvservices */
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{TitleId_NvnFlinger, true}, /* nvnflinger */
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{TitleId_Vi, true}, /* vi */
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{TitleId_Ns, true}, /* ns */
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{TitleId_LogManager, true}, /* lm */
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{TitleId_Ppc, true}, /* ppc */
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{TitleId_Ptm, true}, /* ptm */
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{TitleId_Hid, true}, /* hid */
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{TitleId_Audio, true}, /* audio */
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{TitleId_Lbl, true}, /* lbl */
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{TitleId_Wlan, true}, /* wlan */
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{TitleId_Bluetooth, true}, /* bluetooth */
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{TitleId_BsdSockets, true}, /* bsdsockets */
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{TitleId_Nifm, true}, /* nifm */
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{TitleId_Ldn, true}, /* ldn */
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{TitleId_Account, true}, /* account */
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{TitleId_Friends, false}, /* friends */
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{TitleId_Nfc, true}, /* nfc */
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{TitleId_JpegDec, true}, /* jpegdec */
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{TitleId_CapSrv, true}, /* capsrv */
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{TitleId_Ssl, true}, /* ssl */
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{TitleId_Nim, true}, /* nim */
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{TitleId_Bcat, false}, /* bcat */
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{TitleId_Erpt, true}, /* erpt */
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{TitleId_Es, true}, /* es */
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{TitleId_Pctl, true}, /* pctl */
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{TitleId_Btm, true}, /* btm */
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{TitleId_Eupld, false}, /* eupld */
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{TitleId_Glue, true}, /* glue */
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/* {TitleId_Eclct, true}, */ /* eclct */ /* Skip launching error collection in Atmosphere to lessen telemetry. */
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{TitleId_Npns, false}, /* npns */
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{TitleId_Fatal, true}, /* fatal */
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{TitleId_Ro, true}, /* ro */
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{TitleId_Profiler, true}, /* profiler */
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{TitleId_Sdb, true}, /* sdb */
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{TitleId_Migration, true}, /* migration */
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{TitleId_Grc, true}, /* grc */
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{TitleId_Olsc, true}, /* olsc */
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};
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static void MountSdCard() {
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Handle tmp_hnd = 0;
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static const char * const required_active_services[] = {"pcv", "gpio", "pinmux", "psc:c"};
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for (unsigned int i = 0; i < sizeof(required_active_services) / sizeof(required_active_services[0]); i++) {
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if (R_FAILED(smGetServiceOriginal(&tmp_hnd, smEncodeName(required_active_services[i])))) {
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/* TODO: Panic */
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} else {
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svcCloseHandle(tmp_hnd);
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}
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}
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fsdevMountSdmc();
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}
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static void WaitForMitm(const char *service) {
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bool mitm_installed = false;
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Result rc = smManagerAmsInitialize();
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if (R_FAILED(rc)) {
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std::abort();
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}
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while (R_FAILED((rc = smManagerAmsHasMitm(&mitm_installed, service))) || !mitm_installed) {
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if (R_FAILED(rc)) {
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std::abort();
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}
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svcSleepThread(1000000ull);
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}
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smManagerAmsExit();
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}
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void EmbeddedBoot2::Main() {
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/* Wait until fs.mitm has installed itself. We want this to happen as early as possible. */
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WaitForMitm("fsp-srv");
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/* Clear titles. */
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ClearLaunchedTitles();
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/* psc, bus, pcv is the minimal set of required titles to get SD card. */
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/* bus depends on pcie, and pcv depends on settings. */
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/* Launch psc. */
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LaunchTitle(TitleId_Psc, FsStorageId_NandSystem, 0, NULL);
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/* Launch pcie. */
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LaunchTitle(TitleId_Pcie, FsStorageId_NandSystem, 0, NULL);
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/* Launch bus. */
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LaunchTitle(TitleId_Bus, FsStorageId_NandSystem, 0, NULL);
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/* Launch settings. */
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LaunchTitle(TitleId_Settings, FsStorageId_NandSystem, 0, NULL);
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/* Launch pcv. */
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LaunchTitle(TitleId_Pcv, FsStorageId_NandSystem, 0, NULL);
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/* At this point, the SD card can be mounted. */
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MountSdCard();
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/* Find out whether we are maintenance mode. */
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bool maintenance = IsMaintenanceMode();
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if (maintenance) {
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BootModeService::SetMaintenanceBootForEmbeddedBoot2();
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}
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/* Wait for other atmosphere mitm modules to initialize. */
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WaitForMitm("set:sys");
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if (GetRuntimeFirmwareVersion() >= FirmwareVersion_200) {
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WaitForMitm("bpc");
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} else {
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WaitForMitm("bpc:c");
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}
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/* Launch usb. */
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LaunchTitle(TitleId_Usb, FsStorageId_NandSystem, 0, NULL);
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/* Launch tma. */
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LaunchTitle(TitleId_Tma, FsStorageId_NandSystem, 0, NULL);
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/* Launch Atmosphere dmnt, using FsStorageId_None to force SD card boot. */
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LaunchTitle(TitleId_Dmnt, FsStorageId_None, 0, NULL);
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/* Launch default programs. */
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for (auto &launch_program : g_additional_launch_programs) {
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if (!maintenance || std::get<bool>(launch_program)) {
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LaunchTitle(std::get<u64>(launch_program), FsStorageId_NandSystem, 0, NULL);
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}
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/* In 7.0.0, Npns was added to the list of titles to launch during maintenance. */
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if (maintenance && std::get<u64>(launch_program) == TitleId_Npns && GetRuntimeFirmwareVersion() >= FirmwareVersion_700) {
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LaunchTitle(TitleId_Npns, FsStorageId_NandSystem, 0, NULL);
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}
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}
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/* Allow for user-customizable programs. */
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DIR *titles_dir = opendir("sdmc:/atmosphere/titles");
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struct dirent *ent;
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if (titles_dir != NULL) {
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while ((ent = readdir(titles_dir)) != NULL) {
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if (strlen(ent->d_name) == 0x10 && IsHexadecimal(ent->d_name)) {
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u64 title_id = (u64)strtoul(ent->d_name, NULL, 16);
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if (HasLaunchedTitle(title_id)) {
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continue;
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}
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char title_path[FS_MAX_PATH] = {0};
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strcpy(title_path, "sdmc:/atmosphere/titles/");
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strcat(title_path, ent->d_name);
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strcat(title_path, "/flags/boot2.flag");
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FILE *f_flag = fopen(title_path, "rb");
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if (f_flag != NULL) {
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fclose(f_flag);
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LaunchTitle(title_id, FsStorageId_None, 0, NULL);
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} else {
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/* TODO: Deprecate this in the future. */
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memset(title_path, 0, FS_MAX_PATH);
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strcpy(title_path, "sdmc:/atmosphere/titles/");
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strcat(title_path, ent->d_name);
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strcat(title_path, "/boot2.flag");
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f_flag = fopen(title_path, "rb");
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if (f_flag != NULL) {
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fclose(f_flag);
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LaunchTitle(title_id, FsStorageId_None, 0, NULL);
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}
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}
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}
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}
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closedir(titles_dir);
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}
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/* We no longer need the SD card. */
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fsdevUnmountAll();
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/* Free the memory used to track what boot2 launches. */
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ClearLaunchedTitles();
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}
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