====== Kefir refreSH ======
===== kefir.sh =====
<file bash kefir.sh>
#!/bin/sh
kver=123
if [ -n "$1" ]; then
  kver=$1
else
  echo "Please enter Kefir version: "
  read kver
fi
user=Atmosphere-NX
repo=Atmosphere

if ! [ -d ./$repo ]; then
  if ! [ -f ./$repo.zip ]; then
    git clone --recurse-submodules https://github.com/$user/$repo
#    zip -r ./$repo.zip ./$repo/*
  else
    unzip ./$repo.zip
    if ! [ $? == 0 ]; then
      pacman -S unzip --noconfirm
      unzip ./$repo.zip
    fi
  fi
fi

cd ./$repo

#sed -i 's///g' ./atmosphere.mk
# disable debug build
sed -i '/dist\: dist-no-debug/a skip\:' ./atmosphere.mk
# make dir for hekate payloads
sed -i '/mkdir \$(DIST_DIR)\/switch/i \\tmkdir -p \$(DIST_DIR)\/bootloader\/payloads' ./atmosphere.mk
# make subdir for daybreak.nro
sed -i 's/mkdir \$(DIST_DIR)\/switch/mkdir -p \$(DIST_DIR)\/switch\/daybreak/g' ./atmosphere.mk
# copy fusee.bin as hekate payload
sed -i '/\$(DIST_DIR)\/atmosphere\/reboot_payload.bin/a \\tcp fusee\/\$(ATMOSPHERE_BOOT_OUT_DIR)\/fusee.bin \$(DIST_DIR)\/bootloader\/payloads\/fusee.bin' ./atmosphere.mk
# move daybreak.nro to subdir
sed -i 's/switch\/daybreak.nro/switch\/daybreak\/daybreak.nro/g' ./atmosphere.mk

#sed -i 's///g' ./stratosphere/ams_mitm/source/set_mitm/setsys_mitm_service.cpp
# md5 for 1.3.0 release is fa0f38f14964ec619527832357ec617c
# md5 for 1.3.1 release is 7d34d689829a6b5d95954b410519beec 
if ! [ $(md5sum ./stratosphere/ams_mitm/source/set_mitm/setsys_mitm_service.cpp | awk '{print $1}') = 7d34d689829a6b5d95954b410519beec ]; then
  echo "WARNING: md5sum is not same, replace the file and press enter"
  read
fi
rm ./stratosphere/ams_mitm/source/set_mitm/setsys_mitm_service.cpp
cp ../setsys_mitm_service.kef ./stratosphere/ams_mitm/source/set_mitm/setsys_mitm_service.cpp

#sed -i 's///g' ./stratosphere/loader/source/ldr_development_manager.cpp
sed -i 's/return g_development_for_anti_downgrade_check/return true/g' ./stratosphere/loader/source/ldr_development_manager.cpp
sed -i 's/return g_development_for_acid_signature_check/return false/g' ./stratosphere/loader/source/ldr_development_manager.cpp
sed -i 's/return g_enabled_program_verification/return false/g' ./stratosphere/loader/source/ldr_development_manager.cpp

#sed -i 's///g' ./stratosphere/loader/source/ldr_meta.cpp
sed -i 's/a = is_signature_valid/a = false/g' ./stratosphere/loader/source/ldr_meta.cpp

#sed -i 's///g' ./troposphere/daybreak/source/ui.cpp
sed -i 's/bool g_exfat_supported = false/bool g_exfat_supported = true/g' ./troposphere/daybreak/source/ui.cpp
sed -i 's/bool g_use_exfat = false/bool g_use_exfat = true/g' ./troposphere/daybreak/source/ui.cpp
sed -i 's/g_use_exfat = false/g_use_exfat = true/g' ./troposphere/daybreak/source/ui.cpp
sed -i 's/if (g_exfat_supported)/if (0)/g' ./troposphere/daybreak/source/ui.cpp

#sed -i 's///g' ./stratosphere/fatal/source/fatal_task_error_report.cpp [unused]
#sed -i 's/\%u.\%u.\%u-\%s/\%u.\%u.\%u-\%s-KEF'$kver'/g' ./stratosphere/fatal/source/fatal_task_error_report.cpp

#sed -i 's///g' ./stratosphere/fatal/source/fatal_task_screen.cpp [unused]
#sed -i 's/\%u.\%u.\%u-\%s/\%u.\%u.\%u-\%s-KEF'$kver'/g' ./stratosphere/fatal/source/fatal_task_screen.cpp

#sed -i 's///g' ./libraries/libvapours/include/vapours/ams/ams_api_version.h [unused]
#if [ $(wc -c ./libraries/libvapours/include/vapours/ams/ams_api_version.h | awk '{print $1}') -le 1078 ]; then
#  echo "#define KEFIR_RELEASE_VERSION $kver" >> ./libraries/libvapours/include/vapours/ams/ams_api_version.h
#else
#  sed -i 's/KEFIR_RELEASE_VERSION [0-9][0-9][0-9]/KEFIR_RELEASE_VERSION '$kver'/g' ./libraries/libvapours/include/vapours/ams/ams_api_version.h
#fi

#sed -i 's///g' ./libraries/config/common.mk
sed -i 's/dirty/KEF'$kver'/g' ./libraries/config/common.mk

make
</file>
===== kefir.cpp =====
<file cpp setsys_mitm_service.kef>
/*
 * Copyright (c) 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 <stratosphere.hpp>
#include "setsys_mitm_service.hpp"
#include "settings_sd_kvs.hpp"

namespace ams::mitm::settings {

    using namespace ams::settings;

    namespace {

        constinit os::SdkMutex g_firmware_version_lock;
        constinit bool g_cached_firmware_version;
        constinit settings::FirmwareVersion g_firmware_version;
        constinit settings::FirmwareVersion g_ams_firmware_version;

        int g_kfr_firmware_version = 0;

        void CacheFirmwareVersion() {
            if (AMS_LIKELY(g_cached_firmware_version)) {
                return;
            }

            std::scoped_lock lk(g_firmware_version_lock);

            if (AMS_UNLIKELY(g_cached_firmware_version)) {
                return;
            }

            /* Mount the SD card. */
            {
                if (R_SUCCEEDED(fs::MountSdCard("sdmc"))) {
                    ams::fs::FileHandle file;
                    if (R_SUCCEEDED(fs::OpenFile(std::addressof(file), "sdmc:/switch/kefir-updater/version", fs::OpenMode_Read))) {
                        ON_SCOPE_EXIT { ams::fs::CloseFile(file); };

                        /* Get file size. */
                        s64 file_size;
                        R_ABORT_UNLESS(fs::GetFileSize(std::addressof(file_size), file));

                        /* Allocate kver txt buffer. */
                        char *kef_txt = static_cast<char *>(std::malloc(file_size + 1));
                        ON_SCOPE_EXIT { std::free(kef_txt); };

                        /* Read kver into buffer. */
                        R_ABORT_UNLESS(fs::ReadFile(file, 0, kef_txt, file_size));
                        kef_txt[file_size] = '\x00';

                        g_kfr_firmware_version = strtol(kef_txt, NULL, 10);
                    }
                }
            }

            /* Mount firmware version data archive. */
            {
                R_ABORT_UNLESS(ams::fs::MountSystemData("sysver", ncm::SystemDataId::SystemVersion));
                ON_SCOPE_EXIT { ams::fs::Unmount("sysver"); };

                /* Firmware version file must exist. */
                ams::fs::FileHandle file;
                R_ABORT_UNLESS(ams::fs::OpenFile(std::addressof(file), "sysver:/file", fs::OpenMode_Read));
                ON_SCOPE_EXIT { ams::fs::CloseFile(file); };

                /* Must be possible to read firmware version from file. */
                R_ABORT_UNLESS(ams::fs::ReadFile(file, 0, std::addressof(g_firmware_version), sizeof(g_firmware_version)));

                g_ams_firmware_version = g_firmware_version;
            }

            /* Modify the atmosphere firmware version to display a custom version string. */
            {
                const auto api_info = exosphere::GetApiInfo();
                const char emummc_char = emummc::IsActive() ? 'E' : 'S';

                /* NOTE: We have carefully accounted for the size of the string we print. */
                /* No truncation occurs assuming two-digits for all version number components. */
                char display_version[sizeof(g_ams_firmware_version.display_version)];

                if (g_kfr_firmware_version != 0)
                    util::SNPrintf(display_version, sizeof(display_version), "%s|KEF%d-%u.%u.%u|%c", g_ams_firmware_version.display_version, g_kfr_firmware_version, api_info.GetMajorVersion(), api_info.GetMinorVersion(), api_info.GetMicroVersion(), emummc_char);
                else
                    util::SNPrintf(display_version, sizeof(display_version), "%s|KEF-%u.%u.%u|%c", g_ams_firmware_version.display_version, api_info.GetMajorVersion(), api_info.GetMinorVersion(), api_info.GetMicroVersion(), emummc_char);

                std::memcpy(g_ams_firmware_version.display_version, display_version, sizeof(display_version));
            }

            g_cached_firmware_version = true;
        }

        Result GetFirmwareVersionImpl(settings::FirmwareVersion *out, const sm::MitmProcessInfo &client_info) {
            /* Ensure that we have the firmware version cached. */
            CacheFirmwareVersion();

            /* We want to give a special firmware version to the home menu title, and nothing else. */
            /* This means Qlaunch + Maintenance Menu, and nothing else. */
            if (client_info.program_id == ncm::SystemAppletId::Qlaunch || client_info.program_id == ncm::SystemAppletId::MaintenanceMenu) {
                *out = g_ams_firmware_version;
            } else {
                *out = g_firmware_version;
            }

            R_SUCCEED();
        }

    }

    Result SetSysMitmService::GetFirmwareVersion(sf::Out<settings::FirmwareVersion> out) {
        R_TRY(GetFirmwareVersionImpl(out.GetPointer(), m_client_info));

        /* GetFirmwareVersion sanitizes the revision fields. */
        out.GetPointer()->revision_major = 0;
        out.GetPointer()->revision_minor = 0;
        R_SUCCEED();
    }

    Result SetSysMitmService::GetFirmwareVersion2(sf::Out<settings::FirmwareVersion> out) {
        R_RETURN(GetFirmwareVersionImpl(out.GetPointer(), m_client_info));
    }

    Result SetSysMitmService::GetSettingsItemValueSize(sf::Out<u64> out_size, const settings::SettingsName &name, const settings::SettingsItemKey &key) {
        R_TRY_CATCH(settings::fwdbg::GetSdCardKeyValueStoreSettingsItemValueSize(out_size.GetPointer(), name.value, key.value)) {
            R_CATCH_RETHROW(sf::impl::ResultRequestContextChanged)
            R_CONVERT_ALL(sm::mitm::ResultShouldForwardToSession());
        } R_END_TRY_CATCH;

        R_SUCCEED();
    }

    Result SetSysMitmService::GetSettingsItemValue(sf::Out<u64> out_size, const sf::OutBuffer &out, const settings::SettingsName &name, const settings::SettingsItemKey &key) {
        R_TRY_CATCH(settings::fwdbg::GetSdCardKeyValueStoreSettingsItemValue(out_size.GetPointer(), out.GetPointer(), out.GetSize(), name.value, key.value)) {
            R_CATCH_RETHROW(sf::impl::ResultRequestContextChanged)
            R_CONVERT_ALL(sm::mitm::ResultShouldForwardToSession());
        } R_END_TRY_CATCH;

        R_SUCCEED();
    }

    Result SetSysMitmService::GetDebugModeFlag(sf::Out<bool> out) {
        /* If we're not processing for am, just return the real flag value. */
        R_UNLESS(m_client_info.program_id == ncm::SystemProgramId::Am, sm::mitm::ResultShouldForwardToSession());

        /* Retrieve the user configuration. */
        u8 en = 0;
        settings::fwdbg::GetSettingsItemValue(std::addressof(en), sizeof(en), "atmosphere", "enable_am_debug_mode");

        out.SetValue(en != 0);
        R_SUCCEED();
    }

}
</file>