package/network/config/netifd/files/lib/netifd/dhcp.script

   1 #!/bin/sh
   2 [ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
   3
   4 . /lib/functions.sh
   5 . /lib/netifd/netifd-proto.sh
   6
   7 set_classless_routes() {
   8         local max=128
   9         while [ -n "$1" -a -n "$2" -a $max -gt 0 ]; do
  10                 proto_add_ipv4_route "${1%%/*}" "${1##*/}" "$2" "$ip"
  11                 max=$(($max-1))
  12                 shift 2
  13         done
  14 }
  15
  16 setup_interface () {
  17         proto_init_update "*" 1
  18         proto_add_ipv4_address "$ip" "${subnet:-255.255.255.0}"
  19         # TODO: apply $broadcast
  20
  21         local ip_net IP PREFIX NETWORK NETMASK BROADCAST
  22         ipcalc "$ip/$mask" && ip_net="$NETWORK"
  23
  24         local i
  25         for i in $router; do
  26                 local gw_net
  27                 ipcalc "$i/$mask" && gw_net="$NETWORK"
  28
  29                 [ "$ip_net" != "$gw_net" ] && proto_add_ipv4_route "$i" 32 "" "$ip"
  30                 proto_add_ipv4_route 0.0.0.0 0 "$i" "$ip"
  31
  32                 local r
  33                 for r in $CUSTOMROUTES; do
  34                         proto_add_ipv4_route "${r%%/*}" "${r##*/}" "$i" "$ip"
  35                 done
  36         done
  37
  38         # CIDR STATIC ROUTES (rfc3442)
  39         [ -n "$staticroutes" ] && set_classless_routes $staticroutes
  40         [ -n "$msstaticroutes" ] && set_classless_routes $msstaticroutes
  41
  42         for i in $dns; do
  43                 proto_add_dns_server "$i"
  44         done
  45         for i in $domain; do
  46                 proto_add_dns_search "$i"
  47         done
  48
  49         # TODO: Deprecate timesvr in favor of timesrv
  50         if [ -n "$timesvr" -a -z "$timesrv" ]; then
  51                 timesrv="$timesvr"
  52                 echo "Environment variable 'timesvr' will be deprecated; use 'timesrv' instead."
  53         fi
  54
  55         proto_add_data
  56         [ -n "$ZONE" ]     && json_add_string zone "$ZONE"
  57         [ -n "$ntpsrv" ]   && json_add_string ntpserver "$ntpsrv"
  58         [ -n "$timesrv" ]  && json_add_string timeserver "$timesrv"
  59         [ -n "$hostname" ] && json_add_string hostname "$hostname"
  60         [ -n "$message" ]  && json_add_string message "$message"
  61         [ -n "$timezone" ] && json_add_int timezone "$timezone"
  62         [ -n "$lease" ]    && json_add_int leasetime "$lease"
  63         [ -n "$serverid" ] && json_add_string dhcpserver "$serverid"
  64         proto_close_data
  65
  66         proto_send_update "$INTERFACE"
  67
  68
  69         if [ "$IFACE6RD" != 0 -a -n "$ip6rd" ]; then
  70                 local v4mask="${ip6rd%% *}"
  71                 ip6rd="${ip6rd#* }"
  72                 local ip6rdprefixlen="${ip6rd%% *}"
  73                 ip6rd="${ip6rd#* }"
  74                 local ip6rdprefix="${ip6rd%% *}"
  75                 ip6rd="${ip6rd#* }"
  76                 local ip6rdbr="${ip6rd%% *}"
  77
  78                 [ -n "$ZONE" ] || ZONE=$(fw3 -q network $INTERFACE 2>/dev/null)
  79                 [ -z "$IFACE6RD" -o "$IFACE6RD" = 1 ] && IFACE6RD=${INTERFACE}_6
  80
  81                 json_init
  82                 json_add_string name "$IFACE6RD"
  83                 json_add_string ifname "@$INTERFACE"
  84                 json_add_string proto "6rd"
  85                 json_add_string peeraddr "$ip6rdbr"
  86                 json_add_int ip4prefixlen "$v4mask"
  87                 json_add_string ip6prefix "$ip6rdprefix"
  88                 json_add_int ip6prefixlen "$ip6rdprefixlen"
  89                 json_add_string tunlink "$INTERFACE"
  90                 [ -n "$IFACE6RD_DELEGATE" ] && json_add_boolean delegate "$IFACE6RD_DELEGATE"
  91                 [ -n "$ZONE6RD" ] || ZONE6RD=$ZONE
  92                 [ -n "$ZONE6RD" ] && json_add_string zone "$ZONE6RD"
  93                 [ -n "$MTU6RD" ] && json_add_string mtu "$MTU6RD"
  94                 json_close_object
  95
  96                 ubus call network add_dynamic "$(json_dump)"
  97         fi
  98 }
  99
 100 deconfig_interface() {
 101         proto_init_update "*" 0
 102         proto_send_update "$INTERFACE"
 103 }
 104
 105 case "$1" in
 106         deconfig)
 107                 deconfig_interface
 108         ;;
 109         renew|bound)
 110                 setup_interface
 111         ;;
 112 esac
 113
 114 # user rules
 115 [ -f /etc/udhcpc.user ] && . /etc/udhcpc.user "$@"
 116 for f in /etc/udhcpc.user.d/*; do
 117         [ -f "$f" ] && (. "$f" "$@")
 118 done
 119
 120 exit 0