git.ozlabs.org Git - petitboot/blob - utils/pb-udhcpc

   1 #!/bin/sh
   2 #
   3 # Petitboot udhcpc user script.  Should be run by udhcpc when
   4 # there is a change in the dhcp configuration.  For more info
   5 # see the udhcpc man page and the Linux kernel source file
   6 # Documentation/filesystems/nfsroot.txt.
   7 #
   8
   9 PBOOT_USER_EVENT_SOCKET="/tmp/petitboot.ev"
  10 log="/var/log/petitboot/pb-udhcpc.log"
  11
  12 pb_add () {
  13         k_server_ip=${rootpath%%:*}
  14         k_root_dir=${rootpath#*:}
  15
  16         [ ${k_server_ip} != ${rootpath} ] || k_server_ip=${serverid}
  17
  18         pb-event add@/net/${interface} \
  19                 name=netboot \
  20                 image=tftp://${siaddr}/${boot_file} \
  21                 args="root=/dev/nfs ip=any nfsroot=${k_server_ip}:${k_root_dir}"
  22 }
  23
  24 pb_remove () {
  25         pb-event remove@/net/${interface} name=netboot
  26 }
  27
  28 case "$1" in
  29 bound | renew)
  30         pb_add
  31         ;;
  32 deconfig)
  33         pb_remove
  34         ;;
  35 *)
  36         ;;
  37 esac
  38
  39 printf "--- $1 ---\n" >> ${log}
  40 set >> ${log}
  41 printf "---------------\n" >> ${log}