Initial commit

package/base-files/files/lib/preinit/02_default_set_state

@@ -0,0 +1,5 @@
+define_default_set_state() {
+	. /etc/diag.sh
+}
+
+boot_hook_add preinit_main define_default_set_state

package/base-files/files/lib/preinit/02_sysinfo

@@ -0,0 +1,10 @@
+do_sysinfo_generic() {
+	[ -d /proc/device-tree ] || return
+	mkdir -p /tmp/sysinfo
+	[ -e /tmp/sysinfo/board_name ] || \
+		echo "$(strings /proc/device-tree/compatible | head -1)" > /tmp/sysinfo/board_name
+	[ ! -e /tmp/sysinfo/model -a -e /proc/device-tree/model ] && \
+		echo "$(cat /proc/device-tree/model)" > /tmp/sysinfo/model
+}
+
+boot_hook_add preinit_main do_sysinfo_generic

package/base-files/files/lib/preinit/10_indicate_failsafe

@@ -0,0 +1,17 @@
+# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+# commands for emitting messages to network in failsafe mode
+
+indicate_failsafe_led () {
+	set_state failsafe
+}
+
+indicate_failsafe() {
+	[ "$pi_preinit_no_failsafe" = "y" ] && return
+	echo "- failsafe -"
+	preinit_net_echo "Entering Failsafe!\n"
+	indicate_failsafe_led
+}
+
+boot_hook_add failsafe indicate_failsafe

package/base-files/files/lib/preinit/10_indicate_preinit

@@ -0,0 +1,207 @@
+# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+preinit_ip_config() {
+	local netdev vid
+
+	netdev=${1%\.*}
+	vid=${1#*\.}
+
+	if [ "$vid" = "$netdev" ]; then
+		vid=
+	fi
+
+	grep -q "$netdev" /proc/net/dev || return
+
+	if [ -n "$vid" ]; then
+		ip link add link $netdev name $1 type vlan id $vid
+	fi
+
+	ip link set dev $netdev up
+	if [ -n "$vid" ]; then
+		ip link set dev $1 up
+	fi
+	ip -4 address add $pi_ip/$pi_netmask broadcast $pi_broadcast dev $1
+}
+
+preinit_config_switch() {
+	local role roles ports device enable reset
+
+	local name=$1
+	local lan_if=$2
+
+	json_select switch
+	json_select $name
+
+	json_get_vars enable reset
+
+	if [ "$reset" -eq "1" ]; then
+		swconfig dev $name set reset
+	fi
+	swconfig dev $name set enable_vlan $enable
+
+	if json_is_a roles array; then
+		json_get_keys roles roles
+		json_select roles
+
+		for role in $roles; do
+			json_select "$role"
+			json_get_vars ports device
+			json_select ..
+
+			if [ "$device" = "$lan_if" ]; then
+				swconfig dev $name vlan $role set ports "$ports"
+			fi
+		done
+
+		json_select ..
+	fi
+
+	swconfig dev $name set apply
+
+	json_select ..
+	json_select ..
+}
+
+preinit_config_port() {
+	local original
+
+	local netdev="$1"
+	local path="$2"
+
+	[ -d "/sys/devices/$path/net" ] || return
+	original="$(ls "/sys/devices/$path/net" | head -1)"
+
+	[ "$netdev" = "$original" ] && return
+
+	ip link set "$original" name "$netdev"
+}
+
+preinit_config_board() {
+	/bin/board_detect /tmp/board.json
+
+	[ -f "/tmp/board.json" ] || return
+
+	. /usr/share/libubox/jshn.sh
+
+	json_init
+	json_load "$(cat /tmp/board.json)"
+
+	# Find the current highest eth*
+	max_eth=$(grep -o '^ *eth[0-9]*:' /proc/net/dev | tr -dc '[0-9]\n' | sort -n | tail -1)
+	# Find and move netdevs using eth*s we are configuring
+	json_get_keys keys "network_device"
+	for netdev in $keys; do
+		json_select "network_device"
+			json_select "$netdev"
+				json_get_vars path path
+				if [ -n "$path" -a -h "/sys/class/net/$netdev" ]; then
+					ip link set "$netdev" down
+					ip link set "$netdev" name eth$((++max_eth))
+				fi
+			json_select ..
+		json_select ..
+	done
+
+	# Move interfaces by path to their netdev name
+	json_get_keys keys "network_device"
+	for netdev in $keys; do
+		json_select "network_device"
+			json_select "$netdev"
+				json_get_vars path path
+				[ -n "$path" ] && preinit_config_port "$netdev" "$path"
+			json_select ..
+		json_select ..
+	done
+
+	json_select network
+		json_select "lan"
+			json_get_vars device
+			json_get_values ports ports
+		json_select ..
+	json_select ..
+
+	[ -n "$device" -o -n "$ports" ] || return
+
+	# swconfig uses $device and DSA uses ports
+	[ -z "$ports" ] && {
+		ports="$device"
+	}
+
+	# only use the first one
+	ifname=${ports%% *}
+
+	if [ -x /sbin/swconfig ]; then
+		# configure the switch, if present
+
+		json_get_keys keys switch
+		for key in $keys; do
+			preinit_config_switch $key $ifname
+		done
+	else
+		# trim any vlan ids
+		ifname=${ifname%\.*}
+		# trim any vlan modifiers like :t
+		ifname=${ifname%\:*}
+	fi
+
+	pi_ifname=$ifname
+
+	preinit_ip_config $pi_ifname
+}
+
+preinit_ip() {
+	[ "$pi_preinit_no_failsafe" = "y" ] && return
+
+	# if the preinit interface isn't specified and ifname is set in
+	# preinit.arch use that interface
+	if [ -z "$pi_ifname" ]; then
+		pi_ifname=$ifname
+	fi
+
+	if [ -n "$pi_ifname" ]; then
+		preinit_ip_config $pi_ifname
+	elif [ -d "/etc/board.d/" ]; then
+		preinit_config_board
+	fi
+
+	preinit_net_echo "Doing OpenWrt Preinit\n"
+}
+
+preinit_ip_deconfig() {
+	[ -n "$pi_ifname" ] && grep -q "$pi_ifname" /proc/net/dev && {
+		local netdev vid
+
+		netdev=${pi_ifname%\.*}
+		vid=${pi_ifname#*\.}
+
+		if [ "$vid" = "$netdev" ]; then
+			vid=
+		fi
+
+		ip -4 address flush dev $pi_ifname
+		ip link set dev $netdev down
+
+		if [ -n "$vid" ]; then
+			ip link delete $pi_ifname
+		fi
+	}
+}
+
+preinit_net_echo() {
+	[ -n "$pi_ifname" ] && grep -q "$pi_ifname" /proc/net/dev && {
+		{
+			[ "$pi_preinit_net_messages" = "y" ] || {
+				[ "$pi_failsafe_net_message" = "true" ] &&
+					[ "$pi_preinit_no_failsafe_netmsg" != "y" ]
+			}
+		} && netmsg $pi_broadcast "$1"
+	}
+}
+
+pi_indicate_preinit() {
+	set_state preinit
+}
+
+boot_hook_add preinit_main preinit_ip
+boot_hook_add preinit_main pi_indicate_preinit

package/base-files/files/lib/preinit/30_failsafe_wait

@@ -0,0 +1,102 @@
+# Copyright (C) 2006-2010 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+fs_wait_for_key () {
+	local timeout=$3
+	local timer
+	local do_keypress
+	local keypress_true="$(mktemp)"
+	local keypress_wait="$(mktemp)"
+	local keypress_sec="$(mktemp)"
+	if [ -z "$keypress_wait" ]; then
+		keypress_wait=/tmp/.keypress_wait
+		touch $keypress_wait
+	fi
+	if [ -z "$keypress_true" ]; then
+		keypress_true=/tmp/.keypress_true
+		touch $keypress_true
+	fi
+	if [ -z "$keypress_sec" ]; then
+		keypress_sec=/tmp/.keypress_sec
+		touch $keypress_sec
+	fi
+
+	trap "echo 'true' >$keypress_true; lock -u $keypress_wait ; rm -f $keypress_wait" INT
+	trap "echo 'true' >$keypress_true; lock -u $keypress_wait ; rm -f $keypress_wait" USR1
+
+	[ -n "$timeout" ] || timeout=1
+	[ $timeout -ge 1 ] || timeout=1
+	timer=$timeout
+	lock $keypress_wait
+	{
+		while [ $timer -gt 0 ]; do
+			pi_failsafe_net_message=true \
+				preinit_net_echo "Please press button now to enter failsafe"
+			echo "$timer" >$keypress_sec
+			timer=$(($timer - 1))
+			sleep 1
+		done
+		lock -u $keypress_wait
+		rm -f $keypress_wait
+	} &
+
+	local consoles="$(sed -e 's/ /\n/g' /proc/cmdline | grep '^console=' | sed -e 's/^console=//' -e 's/,.*//')"
+	[ -n "$consoles" ] || consoles=console
+	for console in $consoles; do
+		[ -c "/dev/$console" ] || continue
+		[ "$pi_preinit_no_failsafe" != "y" ] && echo "Press the [$1] key and hit [enter] $2" > "/dev/$console"
+		echo "Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level" > "/dev/$console"
+		{
+			while [ -r $keypress_wait ]; do
+				timer="$(cat $keypress_sec)"
+
+				[ -n "$timer" ] || timer=1
+				timer="${timer%%\ *}"
+				[ $timer -ge 1 ] || timer=1
+				do_keypress=""
+				{
+					read -t "$timer" do_keypress < "/dev/$console"
+					case "$do_keypress" in
+					$1)
+						echo "true" >$keypress_true
+						;;
+					1 | 2 | 3 | 4)
+						echo "$do_keypress" >/tmp/debug_level
+						;;
+					*)
+						continue;
+						;;
+					esac
+					lock -u $keypress_wait
+					rm -f $keypress_wait
+				}
+			done
+		} &
+	done
+	lock -w $keypress_wait
+
+	keypressed=1
+	[ "$(cat $keypress_true)" = "true" ] && keypressed=0
+
+	rm -f $keypress_true
+	rm -f $keypress_wait
+	rm -f $keypress_sec
+
+	return $keypressed
+}
+
+failsafe_wait() {
+	FAILSAFE=
+	[ "$pi_preinit_no_failsafe" = "y" ] && {
+		fs_wait_for_key "" "" $fs_failsafe_wait_timeout
+		return
+	}
+	grep -q 'failsafe=' /proc/cmdline && FAILSAFE=true && export FAILSAFE
+	if [ "$FAILSAFE" != "true" ]; then
+		fs_wait_for_key f 'to enter failsafe mode' $fs_failsafe_wait_timeout && FAILSAFE=true
+		[ -f "/tmp/failsafe_button" ] && FAILSAFE=true && echo "- failsafe button "$(cat /tmp/failsafe_button)" was pressed -"
+		[ "$FAILSAFE" = "true" ] && export FAILSAFE && touch /tmp/failsafe
+	fi
+}
+
+boot_hook_add preinit_main failsafe_wait

package/base-files/files/lib/preinit/40_run_failsafe_hook

@@ -0,0 +1,16 @@
+# Copyright (C) 2006-2010 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+run_failsafe_hook() {
+    [ "$pi_preinit_no_failsafe" = "y" ] && return
+    if [ "$FAILSAFE" = "true" ]; then
+	lock /tmp/.failsafe
+	boot_run_hook failsafe
+	while [ ! -e /tmp/sysupgrade ]; do
+	    lock -w /tmp/.failsafe
+	done
+	exit
+    fi
+}
+
+boot_hook_add preinit_main run_failsafe_hook

package/base-files/files/lib/preinit/50_indicate_regular_preinit

@@ -0,0 +1,9 @@
+# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+indicate_regular_preinit() {
+	preinit_net_echo "Continuing with Regular Preinit\n"
+	set_state preinit_regular
+}
+
+boot_hook_add preinit_main indicate_regular_preinit

package/base-files/files/lib/preinit/70_initramfs_test

@@ -0,0 +1,12 @@
+# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+initramfs_test() {
+	if [ -n "$INITRAMFS" ]; then
+		boot_run_hook initramfs
+		preinit_ip_deconfig
+		break
+	fi
+}
+
+boot_hook_add preinit_main initramfs_test

package/base-files/files/lib/preinit/80_mount_root

@@ -0,0 +1,54 @@
+# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+missing_lines() {
+	local file1 file2 line
+	file1="$1"
+	file2="$2"
+	oIFS="$IFS"
+	IFS=":"
+	while read line; do
+		set -- $line
+		grep -q "^$1:" "$file2" || echo "$*"
+	done < "$file1"
+	IFS="$oIFS"
+}
+
+# Rootfs mount options can be passed by declaring in the kernel
+# cmdline as much options as needed prefixed with "rootfs_mount_options."
+#
+# Example:
+# rootfs_mount_options.compress_algorithm=zstd rootfs_mount_options.noinline_data
+#
+compose_rootfs_mount_options() {
+	local mount_options
+	local cmdlinevar
+
+	for cmdlinevar in $(cat /proc/cmdline); do
+		if [ "$cmdlinevar" != "${cmdlinevar#rootfs_mount_options\.}" ]; then
+			append mount_options "${cmdlinevar#rootfs_mount_options\.}"
+		fi
+	done
+
+	echo $mount_options
+}
+
+do_mount_root() {
+	mount_root start "$(compose_rootfs_mount_options)"
+	boot_run_hook preinit_mount_root
+	[ -f /sysupgrade.tgz -o -f /tmp/sysupgrade.tar ] && {
+		echo "- config restore -"
+		cp /etc/passwd /etc/group /etc/shadow /tmp
+		cd /
+		[ -f /sysupgrade.tgz ] && tar xzf /sysupgrade.tgz
+		[ -f /tmp/sysupgrade.tar ] && tar xf /tmp/sysupgrade.tar
+		missing_lines /tmp/passwd /etc/passwd >> /etc/passwd
+		missing_lines /tmp/group /etc/group >> /etc/group
+		missing_lines /tmp/shadow /etc/shadow >> /etc/shadow
+		rm /tmp/passwd /tmp/group /tmp/shadow
+		# Prevent configuration corruption on a power loss
+		sync
+	}
+}
+
+[ "$INITRAMFS" = "1" ] || boot_hook_add preinit_main do_mount_root

package/base-files/files/lib/preinit/99_10_failsafe_login

@@ -0,0 +1,15 @@
+# Copyright (C) 2006-2015 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+failsafe_shell() {
+	local consoles="$(sed -e 's/ /\n/g' /proc/cmdline | grep '^console=' | sed -e 's/^console=//' -e 's/,.*//')"
+	[ -n "$consoles" ] || consoles=console
+	for console in $consoles; do
+		[ -c "/dev/$console" ] && while true; do
+			ash --login <"/dev/$console" >"/dev/$console" 2>"/dev/$console"
+			sleep 1
+		done &
+	done
+}
+
+boot_hook_add failsafe failsafe_shell

package/base-files/files/lib/preinit/99_10_run_init

@@ -0,0 +1,8 @@
+# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+run_init() {
+	preinit_ip_deconfig
+}
+
+boot_hook_add preinit_main run_init