modules.d/40network/parse-ifname.sh

   1 #!/bin/sh
   2 #
   3 # Format:
   4 #       ifname=<interface>:<mac>
   5 #
   6 # Note letters in the macaddress must be lowercase!
   7 #
   8 # Examples:
   9 # ifname=eth0:4a:3f:4c:04:f8:d7
  10 #
  11 # Note when using ifname= to get persistent interface names, you must specify
  12 # an ifname= argument for each interface used in an ip= or fcoe= argument
  13
  14 # check if there are any ifname parameters
  15 if ! getarg ifname= >/dev/null ; then
  16     return
  17 fi
  18
  19 parse_ifname_opts() {
  20     local IFS=:
  21     set $1
  22
  23     case $# in
  24         7)
  25             ifname_if=$1
  26             ifname_mac=$2:$3:$4:$5:$6:$7
  27             ;;
  28         *)
  29             die "Invalid arguments for ifname="
  30             ;;
  31     esac
  32 }
  33
  34 # Check ifname= lines
  35 for p in $(getargs ifname=); do
  36     parse_ifname_opts $p
  37 done