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         proto_config_add_string customroutes
  23 }
  24
  25 proto_dhcp_setup() {
  26         local config="$1"
  27         local iface="$2"
  28
  29         local ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd zone mtu6rd customroutes
  30         json_get_vars ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd zone mtu6rd customroutes
  31
  32         local opt dhcpopts
  33         for opt in $reqopts; do
  34                 append dhcpopts "-O $opt"
  35         done
  36
  37         for opt in $sendopts; do
  38                 append dhcpopts "-x $opt"
  39         done
  40
  41         [ "$broadcast" = 1 ] && broadcast="-B" || broadcast=
  42         [ -n "$clientid" ] && clientid="-x 0x3d:${clientid//:/}" || clientid="-C"
  43         [ -n "$iface6rd" ] && proto_export "IFACE6RD=$iface6rd"
  44         [ "$iface6rd" != 0 -a -f /lib/netifd/proto/6rd.sh ] && append dhcpopts "-O 212"
  45         [ -n "$zone6rd" ] && proto_export "ZONE6RD=$zone6rd"
  46         [ -n "$zone" ] && proto_export "ZONE=$zone"
  47         [ -n "$mtu6rd" ] && proto_export "MTU6RD=$mtu6rd"
  48         [ -n "$customroutes" ] && proto_export "CUSTOMROUTES=$customroutes"
  49         [ "$delegate" = "0" ] && proto_export "IFACE6RD_DELEGATE=0"
  50
  51         proto_export "INTERFACE=$config"
  52         proto_run_command "$config" udhcpc \
  53                 -p /var/run/udhcpc-$iface.pid \
  54                 -s /lib/netifd/dhcp.script \
  55                 -f -R -t 0 -i "$iface" \
  56                 ${ipaddr:+-r $ipaddr} \
  57                 ${hostname:+-H $hostname} \
  58                 ${vendorid:+-V $vendorid} \
  59                 $clientid $broadcast $dhcpopts
  60 }
  61
  62 proto_dhcp_renew() {
  63         local interface="$1"
  64         # SIGUSR1 forces udhcpc to renew its lease
  65         local sigusr1="$(kill -l SIGUSR1)"
  66         [ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
  67 }
  68
  69 proto_dhcp_teardown() {
  70         local interface="$1"
  71         proto_kill_command "$interface"
  72 }
  73
  74 add_protocol dhcp