commit c235be09e0f5a7e73326212f0f16c14957dadd3b Author: Valeria Fadeeva Date: Sat Jul 18 07:05:41 2026 +0500 Init diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..99d413d --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +/pkg/ +/src/ +/*.tar.zst +/*.log diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..0f3a712 --- /dev/null +++ b/LICENSE @@ -0,0 +1,662 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + melawy-dracut-module-luks-unlock-shell: Dracut module for remote LUKS + decryption via OpenSSH and systemd-networkd inside initramfs. + Copyright (C) 2026 Valeria Fadeeva + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as published + by the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..3d9148d --- /dev/null +++ b/README.md @@ -0,0 +1,31 @@ +# melawy-dracut-module-luks-unlock-shell +Dracut module for remote LUKS decryption via OpenSSH and systemd-networkd inside initramfs. + +``` +. +├── etc +│   ├── crypto-sshd_config +│   └── dracut.conf.d +│   └── luks-unlock-shell.conf +├── LICENSE +├── README.md +└── usr + ├── bin + │   └── luks-unlock-shell + └── lib + └── dracut + └── modules.d + └── 99luks-unlock-shell + ├── luks-unlock-cleanup.sh + └── module-setup.sh + +9 directories, 7 files + +``` + +### Donate +[Tinkoff](https://www.tinkoff.ru/rm/fadeeva.valeriya96/9bLRi79066) + +[YooMoney](https://yoomoney.ru/to/4100115921160758) + +Etherium 0x981FBf878fe451BDB83BEaF68078394d4B13213f diff --git a/etc/crypto-sshd_config b/etc/crypto-sshd_config new file mode 100644 index 0000000..4ed0d20 --- /dev/null +++ b/etc/crypto-sshd_config @@ -0,0 +1,37 @@ +# /etc/crypto-sshd_config - Конфигурация аварийного SSH-контура расшифровки Melawy OS + +# 1. Сетевые параметры рантайма initramfs +Port 22 +Protocol 2 +AddressFamily any +ListenAddress 0.0.0.0 + +# 2. Криптографические ключи хоста внутри ОЗУ рамдиска +# Dracut принудительно запечет эти ключи из /etc/ssh/ или сгенерирует их в рантайме +HostKey /etc/ssh/ssh_host_rsa_key +HostKey /etc/ssh/ssh_host_ed25519_key + +# 3. Жесткое логирование для отладки сетевой сессии из TTY консоли +SyslogFacility AUTH +LogLevel INFO + +# 4. Аутентификация и защита от подбора паролей +LoginGraceTime 60 +PermitRootLogin yes +StrictModes no +MaxAuthTries 5 + +# 5. КЛЮЧЕВОЙ КОНТУР ИЗОЛЯЦИИ И ПЕРЕХВАТА УПРАВЛЕНИЯ (ст. 274 УК РФ комплаенс) +# Намертво блокируем запуск стандартного Bash/Sh шелла. +# Любое успешное SSH-подключение принудительно перенаправляется на твой скрипт разблокировки. +ForceCommand /usr/bin/luks-unlock-shell + +# Выключаем перенаправление графики и портов, чтобы исключить скрытые туннели внутри initramfs +X11Forwarding no +AllowTcpForwarding no +AllowAgentForwarding no +PermitTTY yes +PermitUserEnvironment no + +# 6. Отключаем подсистемы (SFTP внутри раннего рамдиска физически отсутствует и вызовет сбой) +Subsystem sftp /bin/false diff --git a/etc/dracut.conf.d/luks-unlock-shell.conf b/etc/dracut.conf.d/luks-unlock-shell.conf new file mode 100644 index 0000000..e2e8b1c --- /dev/null +++ b/etc/dracut.conf.d/luks-unlock-shell.conf @@ -0,0 +1,5 @@ +# Подключаем нативный systemd сетевой стек, криптографию, AUR-модуль sshd и твой кастомный шелл +add_dracutmodules+=" systemd-networkd sshd crypt luks-unlock-shell " + +# Включаем необходимые утилиты рантайма +install_items+=" /usr/bin/ip /usr/bin/sed /usr/bin/grep /usr/bin/bash " diff --git a/push.sh b/push.sh new file mode 100755 index 0000000..434d0f3 --- /dev/null +++ b/push.sh @@ -0,0 +1,6 @@ +#!/bin/bash + +git add . && git commit -m "Update" +git push + +echo "Ready" diff --git a/usr/bin/luks-unlock-shell b/usr/bin/luks-unlock-shell new file mode 100755 index 0000000..731abd3 --- /dev/null +++ b/usr/bin/luks-unlock-shell @@ -0,0 +1,47 @@ +#!/bin/bash +trap '' INT TERM TSTP PIPE +clear +echo -e "\033[1;36m=== Melawy OS Remote Decryption Infrastructure ===\033[0m" +echo -e "Хост: Защищенный рантайм Initramfs (Dracut Layer)" +echo -e "Статус: Ожидание разблокировки LUKS-контейнеров...\n" + +unlock_volumes() { + local attempts=0 + local max_attempts=5 + while [ $attempts -lt $max_attempts ]; do + read -s -p "Введите мастер-пароль Melawy OS: " passphrase + echo "" + if [ -z "$passphrase" ]; then + echo -e "\033[1;31m[Ошибка] Пароль не может быть пустым.\033[0m\n" + ((attempts++)) + continue + fi + echo "Проверка сигнатур и расшифровка контейнеров..." + local success=true + for dev in /dev/disk/by-id/* /dev/sd* /dev/nvme* 2>/dev/null; do + if [ -b "$dev" ] && cryptsetup isLuks "$dev" 2>/dev/null; then + local uuid=$(cryptsetup luksUUID "$dev" 2>/dev/null) + if [ ! -b "/dev/mapper/luks-$uuid" ]; then + echo "-> Открываем контейнер UUID: $uuid ($dev)..." + echo -n "$passphrase" | cryptsetup open "$dev" "luks-$uuid" 2>/dev/null + if [ $? -ne 0 ]; then success=false; fi + fi + fi + done + if [ "$success" = true ]; then + echo -e "\n\033[1;32m[Успех] Все LUKS-контейнеры успешно расшифрованы!\033[0m" + if [ -f /tmp/cryptroot-asked ]; then echo "1" > /tmp/cryptroot-asked; fi + systemctl restart systemd-cryptsetup@* 2>/dev/null || true + udevadm trigger --action=change 2>/dev/null || true + sleep 2 + exit 0 + else + echo -e "\033[1;31m[Сбой] Неверный мастер-пароль.\033[0m" + local remaining=$((max_attempts - attempts - 1)) + echo -e "Осталось попыток: $remaining\n" + ((attempts++)) + fi + done + exit 1 +} +unlock_volumes diff --git a/usr/lib/dracut/modules.d/99luks-unlock-shell/luks-unlock-cleanup.sh b/usr/lib/dracut/modules.d/99luks-unlock-shell/luks-unlock-cleanup.sh new file mode 100755 index 0000000..9605980 --- /dev/null +++ b/usr/lib/dracut/modules.d/99luks-unlock-shell/luks-unlock-cleanup.sh @@ -0,0 +1,5 @@ +#!/bin/sh +# Хук финализации: гасит аварийный sshd внутри initramfs после расшифровки дисков +if [ -f /var/run/sshd.pid ]; then + kill $(cat /var/run/sshd.pid) 2>/dev/null || true +fi diff --git a/usr/lib/dracut/modules.d/99luks-unlock-shell/module-setup.sh b/usr/lib/dracut/modules.d/99luks-unlock-shell/module-setup.sh new file mode 100755 index 0000000..d3f20e9 --- /dev/null +++ b/usr/lib/dracut/modules.d/99luks-unlock-shell/module-setup.sh @@ -0,0 +1,32 @@ +#!/bin/bash + +# Проверка зависимостей: модуль загрузится только если в образе есть сеть и крипто-стек +check() { + require_binaries cryptsetup || return 1 + return 0 +} + +# Описываем зависимости от других системных модулей dracut +depends() { + echo "systemd-networkd sshd crypt" + return 0 +} + +# Главный конвейер сборки: указываем, что физически запечь в initramfs +install() { + # 1. Затягиваем сам исполняемый файл шелла разблокировки + inst_multiple /usr/bin/luks-unlock-shell + + # 2. Интегрируем наш кастомный SSH-конфиг и таблицы fstab + if [ -f /etc/crypto-sshd_config ]; then + inst_simple /etc/fstab + inst_simple /etc/crypto-sshd_config + fi + + # КЛЮЧЕВОЙ ПРОБРОС: Жестко впекаем хост-ключи хоста в ОЗУ рамдиска + inst_simple /etc/ssh/ssh_host_rsa_key + inst_simple /etc/ssh/ssh_host_ed25519_key + + # 3. Регистрируем рантайм-хук очистки перед pivot_root + inst_hook pre-pivot 90 "$moddir/luks-unlock-cleanup.sh" +}