openwrt/package/base-files/files/lib/preinit/10_indicate_preinit
Rafał Miłecki 889638c8bf base-files: don't setup network in preinit if failsafe is disabled
With failsafe disabled there is no point in early network setup. We
don't send announcement over UDP and there is no way to ssh to the
device.

A side effect of this is avoiding a possibly incorrect network config
(only with failsafe disabled). This problem is related to possible
changes made by user in /etc/config/network.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2017-08-09 23:20:23 +02:00

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#!/bin/sh
# 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
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 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 set reset $reset
swconfig dev $name set enable_vlan $enable
swconfig dev $name vlan $role set ports "$ports"
swconfig dev $name set apply
fi
done
json_select ..
fi
json_select ..
json_select ..
}
preinit_config_board() {
/bin/board_detect /tmp/board.json
[ -f "/tmp/board.json" ] || return
. /usr/share/libubox/jshn.sh
json_init
json_load "$(cat /tmp/board.json)"
json_select network
json_select "lan"
json_get_vars ifname
json_select ..
json_select ..
[ -n "$ifname" ] || return
# only use the first one
ifname=${ifname%% *}
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%\.*}
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 $pi_ifname
elif [ -d "/etc/board.d/" ]; then
preinit_config_board
fi
preinit_net_echo "Doing Lede Preinit\n"
}
preinit_ip_deconfig() {
[ -n "$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"
}
}
preinit_echo() {
preinit_net_echo $1
echo $1
}
pi_indicate_preinit() {
set_state preinit
}
boot_hook_add preinit_main preinit_ip
boot_hook_add preinit_main pi_indicate_preinit