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#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
# DEBUG="echo"
find_config() {
local iftype iface ifn
for ifn in $interfaces; do
config_get iftype "$ifn" type
config_get iface "$ifn" ifname
case "$iftype" in
bridge)
config_get iface "$ifn" ifnames
;;
esac
config_get device "$ifn" device
for ifc in ${device:-iface}; do
[ "$ifc" = "$1" ] && {
echo "$ifn"
return 0
}
done
done
return 1;
}
scan_interfaces() {
local mode iftype iface
interfaces=
config_cb() {
config_get iftype "$CONFIG_SECTION" TYPE
case "$iftype" in
interface)
config_get iftype "$CONFIG_SECTION" type
config_get mode "$CONFIG_SECTION" proto
case "$iftype" in
bridge)
config_get iface "$CONFIG_SECTION" ifname
iface="${iface:-br-$CONFIG_SECTION}"
config_set "$CONFIG_SECTION" ifname "$iface"
;;
esac
append interfaces "$CONFIG_SECTION"
( type "scan_$mode" ) >/dev/null 2>/dev/null && eval "scan_$mode '$CONFIG_SECTION'"
;;
esac
}
config_load network
}
add_vlan() {
local vif="${1%\.*}"
[ "$1" = "$vif" ] || ifconfig "$1" >/dev/null 2>/dev/null || {
ifconfig "$vif" up 2>/dev/null >/dev/null || add_vlan "$vif"
$DEBUG vconfig add "$vif" "${1##*\.}"
}
}
setup_interface() {
local iface="$1"
local config="$2"
local proto="$3"
[ -n "$config" ] || {
config=$(find_config "$iface")
[ "$?" = 0 ] || return 1
}
[ -n "$proto" ] || {
config_get proto "$config" proto
}
config_get iftype "$config" type
# Setup VLAN interfaces
add_vlan "$iface"
# Setup bridging
case "$iftype" in
bridge)
config_get bridge_ifname "$config" ifname
ifconfig "$iface" up 2>/dev/null >/dev/null
ifconfig "$bridge_ifname" 2>/dev/null >/dev/null && {
$DEBUG brctl addif "$bridge_ifname" "$iface"
return 0
} || {
$DEBUG brctl addbr "$bridge_ifname"
$DEBUG brctl setfd "$bridge_ifname" 0
$DEBUG brctl addif "$bridge_ifname" "$iface"
iface="$bridge_ifname"
}
;;
esac
# Interface settings
config_get mtu "$config" mtu
$DEBUG ifconfig "$iface" ${mtu:+mtu $mtu} up
pidfile="/var/run/$iface.pid"
case "$proto" in
static)
config_get ipaddr "$config" ipaddr
config_get netmask "$config" netmask
[ -z "$ipaddr" -o -z "$netmask" ] && return 1
config_get ip6addr "$config" ip6addr
config_get gateway "$config" gateway
config_get dns "$config" dns
$DEBUG ifconfig "$iface" "$ipaddr" netmask "$netmask"
[ -z "$gateway" ] || route add default gw "$gateway"
[ -z "$dns" -o -f /tmp/resolv.conf ] || {
for ns in $dns; do
echo "nameserver $ns" >> /tmp/resolv.conf
done
}
env -i ACTION="ifup" INTERFACE="config" DEVICE="$iface" PROTO=static /sbin/hotplug "iface" &
;;
dhcp)
pid="$(cat "$pidfile" 2>/dev/null)"
[ -n "$pid" -a -d "/proc/$pid" ] && kill -9 "$pid"
config_get ipaddr "$config" ipaddr
config_get netmask "$config" netmask
config_get hostname "$config" hostname
config_get proto1 "$config" proto
[ -z "$ipaddr" ] || \
$DEBUG ifconfig "$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
# don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
[ "$proto1" != "$proto" ] && dhcpopts="-n -q"
$DEBUG udhcpc -i "$iface" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} -b -p "$pidfile" ${dhcpopts:- -R &}
;;
*)
if ( eval "type setup_interface_$proto" ) >/dev/null 2>/dev/null; then
eval "setup_interface_$proto '$iface' '$config' '$proto'"
else
echo "Interface type $proto not supported."
return 1
fi
;;
esac
}
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