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         proto_config_add_string zone
  21 }
  22
  23 proto_dhcp_setup() {
  24         local config="$1"
  25         local iface="$2"
  26
  27         local ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd zone
  28         json_get_vars ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd zone
  29
  30         local opt dhcpopts
  31         for opt in $reqopts; do
  32                 append dhcpopts "-O $opt"
  33         done
  34
  35         for opt in $sendopts; do
  36                 append dhcpopts "-x $opt"
  37         done
  38
  39         [ "$broadcast" = 1 ] && broadcast="-B" || broadcast=
  40         [ -n "$clientid" ] && clientid="-x 0x3d:${clientid//:/}" || clientid="-C"
  41         [ -n "$iface6rd" ] && proto_export "IFACE6RD=$iface6rd"
  42         [ -n "$iface6rd" ] && append dhcpopts "-O 212"
  43         [ -n "$zone6rd" ] && proto_export "ZONE6RD=$zone6rd"
  44         [ -n "$zone" ] && proto_export "ZONE=$zone"
  45         [ "$delegate" = "0" ] && proto_export "IFACE6RD_DELEGATE=0"
  46
  47         proto_export "INTERFACE=$config"
  48         proto_run_command "$config" udhcpc \
  49                 -p /var/run/udhcpc-$iface.pid \
  50                 -s /lib/netifd/dhcp.script \
  51                 -f -t 0 -i "$iface" \
  52                 ${ipaddr:+-r $ipaddr} \
  53                 ${hostname:+-H $hostname} \
  54                 ${vendorid:+-V $vendorid} \
  55                 $clientid $broadcast $dhcpopts
  56 }
  57
  58 proto_dhcp_renew() {
  59         local interface="$1"
  60         # SIGUSR1 forces udhcpc to renew its lease
  61         local sigusr1="$(kill -l SIGUSR1)"
  62         [ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
  63 }
  64
  65 proto_dhcp_teardown() {
  66         local interface="$1"
  67         proto_kill_command "$interface"
  68 }
  69
  70 add_protocol dhcp