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 "$config" metric
  16         config_get mtu "$config" mtu
  17
  18         # make sure there is a gateway and a target
  19         [ -n "$target" ] || {
  20                 echo "Missing target in route section $config"
  21                 return 1
  22         }
  23         [ -n "$gateway" ] || {
  24                 config_get gateway "$interface" gateway
  25         }
  26
  27         # handle "0.0.0.0" as "no gateway given" to allow
  28         # defining gateway-less routes while still keeping
  29         # the possibility to have static routes with a
  30         # proper gateway on interfaces with dynamic ips
  31         [ "$gateway" = "0.0.0.0" ] && gateway=""
  32
  33         dest="${netmask:+-net "$target" netmask "$netmask"}"
  34         dest="${dest:--host "$target"}"
  35
  36         /sbin/route add $dest ${gateway:+gw "$gateway"} \
  37                 ${dev:+dev "$dev"} ${metric:+ metric "$metric"} \
  38                 ${mtu:+mss "$mtu"}
  39 }
  40
  41 add_route6() {
  42         local config="$1"
  43
  44         # is this route intended for the
  45         # $INTERFACE of this hotplug event
  46         config_get interface "$config" interface
  47         [ "$interface" != "$INTERFACE" ] && return 0
  48
  49         # get the real interface name from network config
  50         config_get dev "$interface" ifname
  51
  52         config_get target "$config" target
  53         config_get gateway "$config" gateway
  54         config_get metric "$config" metric
  55         config_get mtu "$config" mtu
  56
  57         # make sure there is a gateway and a target
  58         [ -n "$target" ] || {
  59                 echo "Missing target in route section $config"
  60                 return 1
  61         }
  62         [ -n "$gateway" ] || {
  63                 config_get gateway "$interface" gateway
  64         }
  65
  66         /sbin/route -A inet6 add $target ${gateway:+gw "$gateway"} \
  67                 ${dev:+dev "$dev"} ${metric:+ metric "$metric"} \
  68                 ${mtu:+mss "$mtu"}
  69 }
  70
  71 case "$ACTION" in
  72         ifup)
  73                 include /lib/network
  74                 scan_interfaces
  75
  76                 # Setup aliases
  77                 config_set "$INTERFACE" aliases ""
  78                 config_set "$INTERFACE" alias_count 0
  79                 config_foreach setup_interface_alias alias "$INTERFACE" "$DEVICE"
  80
  81                 # Save alias references in state vars
  82                 local aliases
  83                 config_get aliases "$INTERFACE" aliases
  84                 [ -z "$aliases" ] || uci_set_state network "$INTERFACE" aliases "$aliases"
  85
  86                 # Make ip6addr of parent iface the main address again
  87                 local ip6addr
  88                 config_get ip6addr "$INTERFACE" ip6addr
  89                 [ -z "$ip6addr" ] || {
  90                         ifconfig "$DEVICE" del "$ip6addr"
  91                         ifconfig "$DEVICE" add "$ip6addr"
  92                 }
  93
  94                 # Setup routes
  95                 config_foreach "add_route" route
  96                 config_foreach "add_route6" route6
  97         ;;
  98         ifdown)
  99                 # Bring down named aliases
 100                 local device=$(uci_get_state network "$INTERFACE" device)
 101                 local ifn
 102                 for ifn in $(ifconfig | sed -ne "s/^\(\($DEVICE${device:+\|$device}\|br-$INTERFACE\):[^[:space:]]\+\).*/\1/p"); do
 103                         ifconfig "$ifn" down
 104                 done
 105         ;;
 106 esac
 107