code.grnet.gr Git - snf-network/blob - vlans/prv-net-helper

   1 #!/bin/bash
   2
   3 function usage {
   4         echo "Usage: $0 <mode> <parent interface> <prv min> <prv max> <offset>"
   5         exit 1
   6 }
   7
   8 if [ $# -ne 5 ]; then
   9         usage
  10 fi
  11
  12 function up {
  13         iface=$1
  14         prv_min=$2
  15         prv_max=$3
  16         offset=$4
  17
  18         echo "Adding VLANs $2 - $3"
  19         vconfig set_name_type DEV_PLUS_VID_NO_PAD
  20         for prv in $(seq $prv_min $prv_max); do
  21                 vlan=$(($prv+$offset))
  22                 bridge=prv$prv
  23
  24                 vconfig add $iface $vlan
  25                 ifconfig $iface.$vlan up
  26                 brctl addbr $bridge
  27                 brctl setfd $bridge 0
  28                 brctl addif $bridge $iface.$vlan # dev_plus_vid
  29                 ifconfig $bridge up
  30         done
  31 }
  32
  33 function down {
  34         iface=$1
  35         prv_min=$2
  36         prv_max=$3
  37         offset=$4
  38
  39         echo "Removing VLANs $2 - $3"
  40         for prv in $(seq $prv_min $prv_max); do
  41                 vlan=$(($prv+$offset))
  42                 bridge=prv$prv
  43
  44                 (
  45                 ifconfig $bridge down
  46                 brctl delif $bridge $iface.$vlan # dev_plus_vid
  47                 vconfig rem $iface.$vlan
  48                 brctl delbr $bridge
  49                 ) 2>/dev/null
  50         done
  51 }
  52
  53 mode=$1; shift
  54 if [ "$mode" = "up" ]; then
  55         up $@
  56 elif [ "$mode" = "down" ]; then
  57         down $@
  58 else
  59         usage
  60 fi