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################################################################################
#
# The MIT License (MIT)
#
# Copyright (c) 2016 Stéphane Desneux <sdx@iot.bzh>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
################################################################################

# detect if this script is sourced: see http://stackoverflow.com/a/38128348/6255594
SOURCED=0
if [ -n "$ZSH_EVAL_CONTEXT" ]; then
	[[ $ZSH_EVAL_CONTEXT =~ :file$ ]] && { SOURCED=1; SOURCEDIR=$(cd $(dirname -- $0) && pwd -P); }
elif [ -n "$KSH_VERSION" ]; then
	[[ "$(cd $(dirname -- $0) && pwd -P)/$(basename -- $0)" != "$(cd $(dirname -- ${.sh.file}) && pwd -P)/$(basename -- ${.sh.file})" ]] && { SOURCED=1; SOURCEDIR=$(cd $(dirname -- ${.sh.file}) && pwd -P); }
elif [ -n "$BASH_VERSION" ]; then
	[[ $0 != "$BASH_SOURCE" ]] && { SOURCED=1; SOURCEDIR=$(cd $(dirname -- $BASH_SOURCE) && pwd -P); }
fi

if [ $SOURCED -ne 1 ]; then
	unset SOURCED
	unset SOURCEDIR
	echo "Error: this script needs to be sourced in a supported shell" >&2
	echo "Please check that the current shell is bash, zsh or ksh and run this script as '. $0 <args>'" >&2
	exit 56
else
	unset SOURCED
	tmpfile=$(mktemp /tmp/aglsetup.XXXXXXXX)
	$SOURCEDIR/.aglsetup_genconfig.bash -s $tmpfile "$@"
	rc=$?
	unset SOURCEDIR
	if [ $rc -eq 0 ]; then
		source $tmpfile
		rc=$?
	else
		echo "Error: configuration files generation failed. Environment is not ready."
	fi

	rm -f $tmpfile
	unset tmpfile
	return $rc
fi
="o">() { log_error "$@" check_debug "Reboot will occur after exiting this shell." log_info "Rebooting..." exec reboot -f } check_debug() { case $DEBUG in Y|y|yes|1|true) log_info "$@" /bin/sh -i ;; esac } # ------------------------------------------- export PATH=/sbin:/usr/sbin:/bin:/usr/bin log_info "starting initrd script" do_mount_fs proc /proc do_mount_fs sysfs /sys do_mount_fs devtmpfs /dev do_mount_fs devpts /dev/pts do_mount_fs tmpfs /dev/shm do_mount_fs tmpfs /tmp do_mount_fs tmpfs /run # parse kernel commandline to get NBD server for x in $(cat /proc/cmdline); do case $x in nbd.server=*) NBD_SERVER=${x/*=/};; nbd.port=*) NBD_PORT=${x/*=/};; nbd.dev=*) NBD_DEV=/dev/${x/*=/};; nbd.debug=*) DEBUG=${x/*=/};; esac done check_debug "Debug point 1. Exit to continue initrd script (mount NBD device)." log_info "NBD parameters: device $NBD_DEV, server $NBD_SERVER:$NBD_PORT" # check if smack is active (and if so, mount smackfs) grep -q smackfs /proc/filesystems && { SMACK=y do_mount_fs smackfs /sys/fs/smackfs # adjust current label and network label echo System >/proc/self/attr/current echo System >/sys/fs/smackfs/ambient } # start nbd client try=5 while :;do log_info "Starting NBD client" nbd-client $NBD_SERVER $NBD_PORT $NBD_DEV && { log_info "NBD client successfully started"; break; } log_info "NBD client failed" [[ $try -gt 0 ]] && { log_info "Retrying ($try trie(s) left)..."; sleep 3; try=$(( try - 1 )); continue; } bail_out "Unable to mount NBD device $NBD_DEV using server $NBD_SERVER:$NBD_PORT" done # mount NBD device mkdir -p /sysroot mount $NBD_DEV /sysroot || bail_out "Unable to mount root NBD device" # move mounted devices to new root cd /sysroot for x in dev proc sys tmp run; do log_info "Moving /$x to new rootfs" mount -o move /$x $x done # switch to new rootfs log_info "Switching to new rootfs" mkdir -p run/initramfs pivot_root . run/initramfs || bail_out "pivot_root failed." # workaround for connman (avoid bringing down the network interface used for booting) if [[ -f /lib/systemd/system/connman.service ]]; then log_info "Adjusting Connman configuration" iface=$(ip -o link show up | tr ':' ' ' | awk '{print $2}' | grep -v -e "^lo$" | head -1) sed -i "s|connmand -n\$|connmand -n -I $iface|g" /lib/systemd/system/connman.service fi # finally, run systemd check_debug "Debug point 2. Exit to continue initrd script (run systemd)." log_info "Exec'ing systemd" # banner generator: echo "AGL Booting . . ." | figlet -f slant -w 80 -c cat <<'EOF' >&2 ________________________________________________________________________________ ___ ________ ____ __ _ / | / ____/ / / __ )____ ____ / /_(_)___ ____ _ / /| |/ / __/ / / __ / __ \/ __ \/ __/ / __ \/ __ `/ / ___ / /_/ / /___ / /_/ / /_/ / /_/ / /_/ / / / / /_/ / _ _ _ /_/ |_\____/_____/ /_____/\____/\____/\__/_/_/ /_/\__, / (_) (_) (_) _____________________________________________________/____/_____________________ EOF exec /lib/systemd/systemd </dev/console >/dev/console 2>&1 bail_out