#!/sbin/openrc-run

# This script is used by Gentoo release media to start certain services and to
# ensure a sane setup for a CD-based boot.

get_config() {
	CMDLINE="$(cat /proc/cmdline)"

	for x in ${CMDLINE} ; do
		case "${x}" in
			# We put nodetect first, so we can override it with do* commands
			nodetect)
				ACPI="no"
				ALSA="no"
				APM="no"
				COLDPLUG="no"
				DETECT="no"
				DMRAID="no"
				FIREWIRE="no"
				GPM="no"
				LVM="no"
				MDADM="no"
				NET="no"
				NFS="no"
				PCMCIA="no"
				PATA="no"
				SATA="no"
				SCSI="no"
				USB="no"
				X11="no"
			;;
			noapm)
				APM="no"
			;;
			nocoldplug|nohotplug)
				COLDPLUG="no"
			;;
			nodhcp)
				DHCP="no"
			;;
			nodmraid)
				DMRAID="no"
			;;
			nofirewire)
				FIREWIRE="no"
			;;
			nogpm)
				GPM="no"
			;;
			noload=*)
				NOLOAD="$*"
			;;
			nolvm|nolvm2)
				LVM="no"
			;;
			nomdadm)
				MDADM="no"
			;;
			nonet)
				NET="no"
			;;
			nonfs)
				NFS="no"
			;;
			nopata)
				PATA="no"
			;;
			nopcmcia)
				PCMCIA="no"
			;;
			nosata)
				SATA="no"
			;;
			noscsi)
				SCSI="no"
			;;
			nosshd)
				SSHD="no"
			;;
			nosound)
				ALSA="no"
			;;
			nousb)
				USB="no"
			;;
			nox)
				X11="no"
			;;
			acpi\=on|acpi\=force)
				ACPI="yes"
				APM="no"
			;;
			brltty=*)
				BRLTTY="yes"
				X11="no"
			;;
			ide\=nodma)
				IDEDMA="no"
			;;
			doapm)
				ACPI="no"
				APM="yes"
			;;
			docoldplug|dohotplug)
				COLDPLUG="yes"
			;;
			dodhcp)
				DHCP="yes"
			;;
			dodmraid)
				DMRAID="yes"
			;;
			dofirewire)
				FIREWIRE="yes"
			;;
			dogpm)
				GPM="yes"
			;;
			dolvm|dolvm2)
				LVM="yes"
			;;
			domdadm)
				MDADM="yes"
			;;
			donet)
				NET="yes"
			;;
			donfs)
				NFS="yes"
			;;
			dopata)
				PATA="yes"
			;;
			dopcmcia)
				PCMCIA="yes"
			;;
			dosata)
				SATA="yes"
			;;
			doscsi)
				SCSI="yes"
			;;
			dosshd)
				SSHD="yes"
			;;
			dosound)
				SOUND="yes"
			;;
			dousb)
				USE="yes"
			;;
			dox)
				X11="yes"
			;;
			passwd=*)
				PASSWD="no"
				PASSWORD="${x#*=}"
			;;
			speakup.synth=*)
				SPEAKUP="yes"
				SPEAKUP_MODULE="speakup_${x#*=}"
				X11="no"
			;;
			speakup_*.{ser,port}=*)
				SPEAKUP_OPTIONS="${SPEAKUP_OPTIONS} ${x#*.}"
			;;
		esac
	done
}

# Checks whether a service will be started by autoconfig.
# Usage: check_svc var service [service_alternative]
check_svc() {
	if yesno "${1}"
	then
		if rc-service -e "${2}"
		then
			echo "${2}"
		elif [ -n "${3}" ] && rc-service -e "${3}"
		then
			echo "${3}"
		fi
	fi
}

# Prints an ordered list of services that will be started by autoconfig.
list_services() {
	get_config
	# Must not print anything here
	if yesno "${DETECT}"
	then
		local arch="$(uname -m)"

		case ${arch} in
			mips*)
				ACPI="no"
				APM="no"
				IDEDMA="no"
			;;
			i?86|x86_64)
				:
			;;
			alpha)
				ACPI="no"
				APM="no"
			;;
			sparc*)
				ACPI="no"
				APM="no"
			;;
			powerpc*)
				ACPI="no"
				APM="no"
			;;
			ia64)
				APM="no"
			;;
		esac
	fi

	local svcs="$(check_svc ${ACPI} acpid)"
	svcs="${svcs} $(check_svc ${ALSA} alsasound)"
	svcs="${svcs} $(check_svc ${ALSA} unmute)"
	if [ "${SPEAKUP_MODULE}" = "speakup_soft" ]  && rc-service -e espeakup
	then
		svcs="${svcs} espeakup"
	fi
	svcs="${svcs} $(check_svc ${APM} apmd)"
	svcs="${svcs} $(check_svc ${BRLTTY} brltty)"
	svcs="${svcs} $(check_svc ${COLDPLUG} coldplug hotplug)"
	if [ -c /dev/input/mice ]
	then
		svcs="${svcs} $(check_svc ${GPM} gpm)"
	fi
	svcs="${svcs} $(check_svc ${IDEDMA} hdparm)"
	svcs="${svcs} $(check_svc ${NFS} nfsclient)"
	svcs="${svcs} $(check_svc ${PASSWD} pwgen)"
	svcs="${svcs} $(check_svc ${PCMCIA} pcmcia)"
	svcs="${svcs} $(check_svc ${SSHD} sshd)"
	svcs="${svcs} $(check_svc ${X11} xdm)"

	### TODO: make this baselayout-2 compatible
	### TODO: make these checks accurate using service dependencies

	echo ${svcs}
}

depend() {
	before net

	get_config
	if yesno "${SPEAKUP}"
	then
		modprobe ${SPEAKUP_MODULE} ${SPEAKUP_OPTIONS} > /dev/null 2>&1
	fi

	need modules $(list_services)
}

get_info() {
	local tmp

	if [ ! -z "${1}" -a ! -z "${2}" ]
	then
		tmp=$(grep "^$1[[:space:]]\+:" /proc/cpuinfo | head -n 1 | cut -d" " -f3-)
		eval "${2}='${tmp}'"
	fi
}

detect_mips() {
	get_info "cpu model" cpuinfo
	get_info "system type" machinfo
	cpuinfo="${cpuinfo%%  FPU*}"

	case "${machinfo}" in
		"SGI Indigo2")
			case "${cpuinfo}" in
				R4*)
					machinfo="SGI Indigo2" # I2 R4x00
				;;
				R8*)
					machinfo="SGI Indigo2 Power" # I2 R8000
				;;
				R10*)
					machinfo="SGI Indigo2 Impact" # I2 R10000
				;;
			esac
		;;
	esac

	PC="Detected an ${machinfo} w/ ${numcpu} ${cpuinfo} CPU(s)"
}

detect_x86_amd64_ia64() {
	if [ "${1}" = "ia64" ]
	then
		get_info "family" cpuinfo
	else
		get_info "model name" cpuinfo
	fi
	get_info "cpu MHz" mhz
	mhz="${mhz%%.*}MHz"

	PC="Detected ${numcpu} ${cpuinfo} CPU(s) @ ${mhz}"
}

detect_alpha() {
	get_info "platform string" machinfo
	get_info "cpu" cpuinfo1
	get_info "cpu model" cpuinfo2
	get_info "cpus detected" numcpu

	PC="Detected ${numcpu} ${cpuinfo1} ${cpuinfo2} CPU(s) in a ${machinfo} system"
}

detect_ppc() {
	get_info "cpu" cpuinfo
	get_info "clock" mhz
	get_info "detected as" machinfo
	machinfo="${machinfo##*\(}"
	machinfo="${machinfo%%\)*}"

	local machtype=""

	case "${machinfo}" in
		"CHRP Pegasos2")
			machtype="Pegasos 2"
			;;
		"CHRP IBM,9124-720")
			machtype="IBM OP720"
			;;
		"iBook 2 rev. 2")
			machtype="Apple iBook G3"
			;;
		"iMac G5"*)
			machtype="Apple iMac G5"
			;;
		"MPC8241")
			machtype="Kurobox"
			;;
		"PowerMac G5")
			machtype="Apple PowerMac G5"
			;;
		"PowerMac G5 Dual Core")
			machtype="Apple PowerMac G5 Dual Core"
			;;
		"PowerMac G4 AGP Graphics")
			machtype="Apple PowerMac G4"
			;;
		"PowerBook Titanium"|"PowerBook G4 15\"")
			machtype="Apple Powerbook G4"
			;;
		"Unknown Intrepid-based")
			machtype="Apple Mac-Mini"
			;;
		*)
			machtype="Unknown PPC System"
			;;
	esac

	PC="Detected a(n) ${machtype} w/ ${numcpu} ${cpuinfo} CPU(s)"
}

detect_sparc() {
	get_info "cpu" cpuinfo
	get_info "ncpus active" numcpu
	get_info "ncpus probed" numprobed

	PC="Detected ${numcpu} active ${cpuinfo} CPU(s) of ${numprobed} total"
}

detect_netdevices() {
	for dev in /sys/class/net/*; do
		n="$(basename $dev)"
		case "$n" in
		lo|sit0) continue ;;
		*) echo $n
		esac
	done
	return 0
}

write_emerge_default_opts() {
	printf "\n# EMERGE_DEFAULT_OPTS is set automatically by livecd-tools autoconfig during first live boot.\n" >> $1
	printf "# This should be equal to number of processors, see \"man emerge\" for details.\n" >> $1
	printf "EMERGE_DEFAULT_OPTS=\"\${EMERGE_DEFAULT_OPTS} --jobs=${numcpu} --load-average=${numcpu}\"\n" >> $1
}

start() {
	ebegin "Starting autoconfig"
	echo "0" > /proc/sys/kernel/printk
	get_config

	local numcpu="$(nproc)"
	eindent
	ebegin "Setting sane defaults in /etc/portage/make.conf"
	if [ -f "/etc/portage/make.conf" ] && checkpath -W /etc/portage/make.conf; then
		if ! grep -q 'EMERGE_DEFAULT_OPTS=.*--jobs' /etc/portage/make.conf; then
			write_emerge_default_opts /etc/portage/make.conf
		fi
	elif [ ! -f "/etc/portage/make.conf" ] && [ ! -d "/etc/portage/make.conf" ] && checkpath -W /etc/portage; then
		write_emerge_default_opts /etc/portage/make.conf
	elif [ -d "/etc/portage/make.conf" ]; then
		if [ ! -f "/etc/portage/make.conf/livecd-tools-autoconfig" ] && checkpath -W /etc/portage/make.conf/livecd-tools-autoconfig; then
			write_emerge_default_opts /etc/portage/make.conf/livecd-tools-autoconfig
		fi
	else
		false
	fi
	eend $? "Unable to write to /etc/portage/make.conf"
	eoutdent

	if yesno "${DETECT}"
	then
		eindent
		ebegin "Hardware detection started"
			local arch="$(uname -m)"

			case ${arch} in
				mips*)
					detect_mips
					ACPI="no"
					APM="no"
					IDEDMA="no"
				;;
				i?86|x86_64)
					detect_x86_amd64_ia64
				;;
				alpha)
					detect_alpha
					ACPI="no"
					APM="no"
				;;
				sparc*)
					detect_sparc
					ACPI="no"
					APM="no"
				;;
				powerpc*)
					detect_ppc
					ACPI="no"
					APM="no"
				;;
				ia64)
					detect_x86_amd64_ia64 "ia64"
					APM="no"
				;;
				*)
					PC=
				;;
			esac
			[ -n "${PC}" ] && einfo "${PC}"
		eend
		eoutdent
	else
		ewarn "Hardware detection disabled via cmdline ..."
	fi

	if ! yesno "${COLDPLUG}"
	then
		ewarn "Hotplug/Coldplug disabled via cmdline ..."
	fi

	if yesno "${APM}"
	then
		modprobe apm power_off=1 >/dev/null 2>&1 && \
			einfo "APM BIOS found, power management functions enabled ..."
		if ! service_started apmd
		then
			rc-service -i apmd start
		fi
	else
		einfo "Not Loading APM Bios support ..."
	fi

	if yesno "${ACPI}"
	then
		modprobe processor >/dev/null 2>&1 && \
			ebegin "ACPI power management functions enabled" && \
			modprobe thermal >/dev/null
		modprobe fan >/dev/null 2>&1
		modprobe button >/dev/null 2>&1
		modprobe battery >/dev/null 2>&1
		modprobe ac >/dev/null 2>&1
		modprobe thermal >/dev/null 2>&1
		modprobe video >/dev/null 2>&1
		modprobe dock >/dev/null 2>&1
		if ! service_started acpid
		then
			rc-service -i acpid start
		fi
		eend
	else
		einfo "Not Loading ACPI support ..."
	fi

	if ! yesno "${IDEDMA}"
	then
		ewarn "Disabling IDE DMA support ..."
	fi

	if ! yesno "${PCMCIA}"
	then
		ewarn "PCMCIA disabled via cmdline ..."
	fi

	if ! yesno "${DHCP}"
	then
		sed -i -e '/^ifconfig_eth.*dhcp.*/ s/^/#/' \
			-e '/^iface_eth.*dhcp.*/ s/^/#/' \
			-e '/^config_eth.*dhcp.*/ s/^/#/' \
			/etc/conf.d/net
		for i in `seq 0 4`
		do
			echo "config_eth${i}=\"null\"" >> /etc/conf.d/net
		done
		ewarn "Skipping DHCP broadcast ..."
	fi

	if yesno "${DETECT}"
	then
		NETDEVICES="$(detect_netdevices)"
	else
		DHCP="no"
	fi

	if [ -n "${NETDEVICES}" ]
	then
		if yesno "${DHCP}"
		then
			einfo "DHCP broadcasting for IP on all detected interfaces ..."
			if [ ! -f /run/dhcpcd.pid ]
			then
				kill $(cat /run/dhcpcd.pid)
				sleep 2
			fi
			dhcpcd -n -h $(hostname)
		fi
		if ! yesno "${PASSWD}"
		then
			chmod og-r /proc/cmdline # Try to secure the kernel parameters per bug #610840
			echo "root:${PASSWORD}" | chpasswd  > /dev/null 2>&1
		fi
		if yesno "${SSHD}"
		then
			# If we have passwd= on the command line, we do not run pwgen and we
			# set the root password to PASSWORD.
			if yesno "${PASSWD}"
			then
				ewarn "WARNING: You are starting sshd with a scrambled root password!!!"
				ewarn "WARNING: You need to set a root password to be able to login remotely."
			fi
		fi
	else
		ewarn "No Network device auto detected ..."
	fi

	if ! yesno "${ALSA}"
	then
		ewarn "Skipping ALSA services as requested on command line ..."
	fi

	echo "6" > /proc/sys/kernel/printk

	if ! yesno "${X11}"
	then
		rc-service xdm stop
		splash_manager -c set -t livecd-10 -m v > /dev/null 2>&1
		reset
		chvt 1
	fi
	eend $?
}

# vim: ts=4