package/network/config/netifd/files/lib/netifd/proto/dhcp.sh

   1 #!/bin/sh
   2
   3 . /lib/functions.sh
   4 . ../netifd-proto.sh
   5 init_proto "$@"
   6
   7 proto_dhcp_init_config() {
   8         renew_handler=1
   9
  10         proto_config_add_string 'ipaddr:ipaddr'
  11         proto_config_add_string 'hostname:hostname'
  12         proto_config_add_string clientid
  13         proto_config_add_string vendorid
  14         proto_config_add_boolean 'broadcast:bool'
  15         proto_config_add_string 'reqopts:list(string)'
  16         proto_config_add_string iface6rd
  17         proto_config_add_string sendopts
  18         proto_config_add_boolean delegate
  19         proto_config_add_string zone6rd
  20 }
  21
  22 proto_dhcp_setup() {
  23         local config="$1"
  24         local iface="$2"
  25
  26         local ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd
  27         json_get_vars ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd
  28
  29         local opt dhcpopts
  30         for opt in $reqopts; do
  31                 append dhcpopts "-O $opt"
  32         done
  33
  34         for opt in $sendopts; do
  35                 append dhcpopts "-x $opt"
  36         done
  37
  38         [ "$broadcast" = 1 ] && broadcast="-B" || broadcast=
  39         [ -n "$clientid" ] && clientid="-x 0x3d:${clientid//:/}" || clientid="-C"
  40         [ -n "$iface6rd" ] && proto_export "IFACE6RD=$iface6rd"
  41         [ -n "$iface6rd" ] && append dhcpopts "-O 212"
  42         [ -n "$zone6rd" ] && proto_export "ZONE6RD=$zone6rd"
  43         [ "$delegate" = "0" ] && proto_export "IFACE6RD_DELEGATE=0"
  44
  45         proto_export "INTERFACE=$config"
  46         proto_run_command "$config" udhcpc \
  47                 -p /var/run/udhcpc-$iface.pid \
  48                 -s /lib/netifd/dhcp.script \
  49                 -f -t 0 -i "$iface" \
  50                 ${ipaddr:+-r $ipaddr} \
  51                 ${hostname:+-H $hostname} \
  52                 ${vendorid:+-V $vendorid} \
  53                 $clientid $broadcast $dhcpopts
  54 }
  55
  56 proto_dhcp_renew() {
  57         local interface="$1"
  58         # SIGUSR1 forces udhcpc to renew its lease
  59         local sigusr1="$(kill -l SIGUSR1)"
  60         [ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
  61 }
  62
  63 proto_dhcp_teardown() {
  64         local interface="$1"
  65         proto_kill_command "$interface"
  66 }
  67
  68 add_protocol dhcp