51 lines
1.8 KiB
Bash
51 lines
1.8 KiB
Bash
#!/bin/sh
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
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# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
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# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-FileType: SOURCE
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# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
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# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
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# SPDX-PackageName: CISS.debian.live.builder
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# SPDX-Security-Contact: security@coresecret.eu
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# No bash in the installer environment, only BusyBox.
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set -o errexit
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set -o nounset
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set -o noclobber
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if [ ! -d /target/root/.ssh ]; then
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mkdir -m 0700 /target/root/.ssh
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fi
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if [ -f /target/etc/ssh/ssh_host_ed25519_key ]; then
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rm -f /target/etc/ssh/ssh_host_ed25519_key
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fi
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if [ -f /target/etc/ssh/ssh_host_rsa_key ]; then
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rm -f /target/etc/ssh/ssh_host_rsa_key
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fi
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in-target ssh-keygen -o -a 1024 -N "" -t ed25519 -f /etc/ssh/ssh_host_ed25519_key -C "root d-i $(date -I)"
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in-target ssh-keygen -o -a 1024 -N "" -t rsa -b 4096 -f /etc/ssh/ssh_host_rsa_key -C "root d-i $(date -I)"
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cp -a /target/etc/ssh/sshd_config /target/root/.d-i-backup/sshd_config.bak
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rm -f /target/etc/ssh/sshd_config
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cp /cdrom/install/.lib/sshd_config.lib /target/etc/ssh/sshd_config
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chmod 0600 /target/etc/ssh/sshd_config
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sed -i "s/Port 22/Port 37768/" /target/etc/ssh/sshd_config
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sed -i "s/AllowUsers DUMMYSTRING/AllowUsers root/" /target/etc/ssh/sshd_config
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cp /cdrom/install/.lib/banner.lib /target/etc/banner
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chmod 0644 /target/etc/banner
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umask 0077
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wget --https-only --secure-protocol=TLSv1_3 -c -O /target/root/.ssh/authorized_keys https://coresecret.eu/download/developer/2024_rsa4096_developer_root.pub.key
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exit 0
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# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
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