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|
add_route() {
local config="$1"
# is this route intended for the
# $INTERFACE of this hotplug event
config_get interface "$config" interface
[ "$interface" != "$INTERFACE" ] && return 0
# get the real interface name from network config
config_get dev "$interface" ifname
config_get target "$config" target
config_get netmask "$config" netmask
config_get gateway "$config" gateway
config_get metric "$config" metric
config_get mtu "$config" mtu
# make sure there is a gateway and a target
[ -n "$target" ] || {
echo "Missing target in route section $config"
return 1
}
[ -n "$gateway" ] || {
config_get gateway "$interface" gateway
}
# handle "0.0.0.0" as "no gateway given" to allow
# defining gateway-less routes while still keeping
# the possibility to have static routes with a
# proper gateway on interfaces with dynamic ips
[ "$gateway" = "0.0.0.0" ] && gateway=""
dest="${netmask:+-net "$target" netmask "$netmask"}"
dest="${dest:--host "$target"}"
/sbin/route add $dest ${gateway:+gw "$gateway"} \
${dev:+dev "$dev"} ${metric:+ metric "$metric"} \
${mtu:+mss "$mtu"}
}
add_route6() {
local config="$1"
# is this route intended for the
# $INTERFACE of this hotplug event
config_get interface "$config" interface
[ "$interface" != "$INTERFACE" ] && return 0
# get the real interface name from network config
config_get dev "$interface" ifname
config_get target "$config" target
config_get gateway "$config" gateway
config_get metric "$config" metric
config_get mtu "$config" mtu
# make sure there is a gateway and a target
[ -n "$target" ] || {
echo "Missing target in route section $config"
return 1
}
[ -n "$gateway" ] || {
config_get gateway "$interface" gateway
}
/sbin/route -A inet6 add $target ${gateway:+gw "$gateway"} \
${dev:+dev "$dev"} ${metric:+ metric "$metric"} \
${mtu:+mss "$mtu"}
}
# Skip fake devices (e.g. relayd)
grep -qs "^ *$DEVICE:" /proc/net/dev || exit 0
case "$ACTION" in
ifup)
include /lib/network
scan_interfaces
# Setup aliases
config_set "$INTERFACE" aliases ""
config_set "$INTERFACE" alias_count 0
config_foreach setup_interface_alias alias "$INTERFACE" "$DEVICE"
# Save alias references in state vars
local aliases
config_get aliases "$INTERFACE" aliases
[ -z "$aliases" ] || uci_toggle_state network "$INTERFACE" aliases "$aliases"
# Make ip6addr of parent iface the main address again
local ip6addr
config_get ip6addr "$INTERFACE" ip6addr
[ -z "$ip6addr" ] || {
ifconfig "$DEVICE" del "$ip6addr"
ifconfig "$DEVICE" add "$ip6addr"
}
# Setup sysctls
local proto accept_ra send_rs
config_get proto "$INTERFACE" proto
if [ "$proto" = dhcp ]; then
accept_ra=1
send_rs=0
else
accept_ra=0
send_rs=1
fi
config_get_bool accept_ra "$INTERFACE" accept_ra $accept_ra
[ $accept_ra -eq 0 ] || {
logger -t ifup "Allowing Router Advertisements on $INTERFACE ($DEVICE)"
accept_ra=2
}
do_sysctl "net.ipv6.conf.$DEVICE.accept_ra" $accept_ra
config_get_bool send_rs "$INTERFACE" send_rs $send_rs
[ $send_rs -eq 0 ] || {
logger -t ifup "Enabling Router Solicitations on $INTERFACE ($DEVICE)"
send_rs=2
}
do_sysctl "net.ipv6.conf.$DEVICE.forwarding" $send_rs
# Setup routes
config_foreach "add_route" route
config_foreach "add_route6" route6
;;
ifdown)
# Bring down named aliases
local device=$(uci_get_state network "$INTERFACE" device)
local ifn
for ifn in $(ifconfig | sed -ne "s/^\(\($DEVICE${device:+\|$device}\|br-$INTERFACE\):[^[:space:]]\+\).*/\1/p"); do
ifconfig "$ifn" down
done
;;
esac
|
