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         proto_config_add_string mtu6rd
  22 }
  23
  24 proto_dhcp_setup() {
  25         local config="$1"
  26         local iface="$2"
  27
  28         local ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd zone mtu6rd
  29         json_get_vars ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd zone mtu6rd
  30
  31         local opt dhcpopts
  32         for opt in $reqopts; do
  33                 append dhcpopts "-O $opt"
  34         done
  35
  36         for opt in $sendopts; do
  37                 append dhcpopts "-x $opt"
  38         done
  39
  40         [ "$broadcast" = 1 ] && broadcast="-B" || broadcast=
  41         [ -n "$clientid" ] && clientid="-x 0x3d:${clientid//:/}" || clientid="-C"
  42         [ -n "$iface6rd" ] && proto_export "IFACE6RD=$iface6rd"
  43         [ "$iface6rd" != 0 -a -f /lib/netifd/proto/6rd.sh ] && append dhcpopts "-O 212"
  44         [ -n "$zone6rd" ] && proto_export "ZONE6RD=$zone6rd"
  45         [ -n "$zone" ] && proto_export "ZONE=$zone"
  46         [ -n "$mtu6rd" ] && proto_export "MTU6RD=$mtu6rd"
  47         [ "$delegate" = "0" ] && proto_export "IFACE6RD_DELEGATE=0"
  48
  49         proto_export "INTERFACE=$config"
  50         proto_run_command "$config" udhcpc \
  51                 -p /var/run/udhcpc-$iface.pid \
  52                 -s /lib/netifd/dhcp.script \
  53                 -f -t 0 -i "$iface" \
  54                 ${ipaddr:+-r $ipaddr} \
  55                 ${hostname:+-H $hostname} \
  56                 ${vendorid:+-V $vendorid} \
  57                 $clientid $broadcast $dhcpopts
  58 }
  59
  60 proto_dhcp_renew() {
  61         local interface="$1"
  62         # SIGUSR1 forces udhcpc to renew its lease
  63         local sigusr1="$(kill -l SIGUSR1)"
  64         [ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
  65 }
  66
  67 proto_dhcp_teardown() {
  68         local interface="$1"
  69         proto_kill_command "$interface"
  70 }
  71
  72 add_protocol dhcp