package/base-files/files/etc/hotplug.d/iface/10-routes

   1 add_route() {
   2         local config="$1"
   3
   4         # is this route intended for the
   5         # $INTERFACE of this hotplug event
   6         config_get interface "$config" interface
   7         [ "$interface" != "$INTERFACE" ] && return 0
   8
   9         # get the real interface name from network config
  10         config_get dev "$interface" ifname
  11
  12         config_get target "$config" target
  13         config_get netmask "$config" netmask
  14         config_get gateway "$config" gateway
  15         config_get metric "$config" metric
  16
  17         # make sure there is a gateway and a target
  18         [ -n "$target" ] || {
  19                 echo "Missing target in route section $config"
  20                 return 1
  21         }
  22         [ -n "$gateway" ] || {
  23                 config_get gateway "$interface" gateway
  24         }
  25
  26         # handle "0.0.0.0" as "no gateway given" to allow
  27         # defining gateway-less routes while still keeping
  28         # the possibility to have static routes with a
  29         # proper gateway on interfaces with dynamic ips
  30         [ "$gateway" = "0.0.0.0" ] && gateway=""
  31
  32         dest="${netmask:+-net "$target" netmask "$netmask"}"
  33         dest="${dest:--host "$target"}"
  34
  35         /sbin/route add $dest ${gateway:+gw "$gateway"} \
  36                 ${dev:+dev "$dev"} ${metric:+ metric "$metric"}
  37 }
  38
  39 add_route6() {
  40         local config="$1"
  41
  42         # is this route intended for the
  43         # $INTERFACE of this hotplug event
  44         config_get interface "$config" interface
  45         [ "$interface" != "$INTERFACE" ] && return 0
  46
  47         # get the real interface name from network config
  48         config_get dev "$interface" ifname
  49
  50         config_get target "$config" target
  51         config_get gateway "$config" gateway
  52         config_get metric "$config" metric
  53
  54         # make sure there is a gateway and a target
  55         [ -n "$target" ] || {
  56                 echo "Missing target in route section $config"
  57                 return 1
  58         }
  59         [ -n "$gateway" ] || {
  60                 config_get gateway "$interface" gateway
  61         }
  62
  63         /sbin/route -A inet6 add $target ${gateway:+gw "$gateway"} \
  64                 ${dev:+dev "$dev"} ${metric:+ metric "$metric"}
  65 }
  66
  67 case "$ACTION" in
  68         ifup)
  69                 include /lib/network
  70                 scan_interfaces
  71
  72                 # Setup aliases
  73                 config_set "$INTERFACE" aliases ""
  74                 config_set "$INTERFACE" alias_count 0
  75                 config_foreach setup_interface_alias alias "$INTERFACE" "$DEVICE"
  76
  77                 # Save alias references in state vars
  78                 local aliases
  79                 config_get aliases "$INTERFACE" aliases
  80                 [ -z "$aliases" ] || uci_set_state network "$INTERFACE" aliases "$aliases"
  81
  82                 # Make ip6addr of parent iface the main address again
  83                 local ip6addr
  84                 config_get ip6addr "$INTERFACE" ip6addr
  85                 [ -z "$ip6addr" ] || {
  86                         ifconfig "$DEVICE" del "$ip6addr"
  87                         ifconfig "$DEVICE" add "$ip6addr"
  88                 }
  89
  90                 # Setup routes
  91                 config_foreach "add_route" route
  92                 config_foreach "add_route6" route6
  93         ;;
  94         ifdown)
  95                 # Bring down named aliases
  96                 local device=$(uci_get_state network "$INTERFACE" device)
  97                 local ifn
  98                 for ifn in $(ifconfig | sed -ne "s/^\(\($DEVICE${device:+\|$device}\|br-$INTERFACE\):[^[:space:]]\+\).*/\1/p"); do
  99                         ifconfig "$ifn" down
 100                 done
 101         ;;
 102 esac
 103