36 lines
1.2 KiB
Bash
36 lines
1.2 KiB
Bash
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#!/hint/bash -euE
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# Copyright (C) 2018 Luke Shumaker
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# SPDX-License-Identifier: AGPL-3.0-or-later
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post_install+=(10:openrc-osi-shell:post_install)
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openrc-osi-shell:post_install() {
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local arg_mountpoint=$1
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install -Dm755 /dev/stdin "${arg_mountpoint}/etc/osi-shell" <<-'EOT'
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#!/bin/sh
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# We can't use login(1) because it masks the exit status of the shell,
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# but we want this to be a real local login with PAM, so use su(1),
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# but trick in in to using login(1)'s PAM config. We undo this trick by
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# using nsenter(1) to reset the mount namespace after we've done the PAM stuff.
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# This hardcodes the shell as /bin/bash, which is the default for root.
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unshare --mount -- sh -c 'mount --bind /etc/pam.d/login /etc/pam.d/su && exec -- su -c "exec nsenter --mount --target=1 -- setsid bash -l"' <>/dev/ttyS0 >&0 2>&0
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echo $? >/dev/ttyS1
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openrc-shutdown --poweroff
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sleep infinity
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EOT
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install -Dm755 /dev/stdin "${arg_mountpoint}/etc/init.d/osi-shell" <<-'EOT'
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#!/usr/bin/openrc-run
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description="osi-shell service"
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supervisor=supervise-daemon
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command=/etc/osi-shell
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pidfile="/run/${RC_SVCNAME}.pid"
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depend() {
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after network-online
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}
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EOT
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arch-chroot -- "$arg_mountpoint" rc-update add osi-shell default
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}
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