package/pptp/files/pptp.sh

   1 find_gw() {
   2         route -n | awk '$1 == "0.0.0.0" { print $2; exit }'
   3 }
   4
   5 scan_pptp() {
   6         config_set "$1" device "pptp-$1"
   7 }
   8
   9 stop_interface_pptp() {
  10         stop_interface_ppp "$1"
  11         for ip in $(uci_get_state network "$1" serv_addrs); do
  12                 route del -host "$ip" 2>/dev/null
  13         done
  14 }
  15
  16 coldplug_interface_pptp() {
  17         setup_interface_pptp "pptp-$1" "$1"
  18 }
  19
  20 setup_interface_pptp() {
  21         local config="$2"
  22         local ifname
  23
  24         local device
  25         config_get device "$config" device
  26
  27         local ipproto
  28         config_get ipproto "$config" ipproto
  29
  30         local server
  31         config_get server "$config" server
  32
  33         local buffering
  34         config_get_bool buffering "$config" buffering 1
  35         [ "$buffering" == 0 ] && buffering="--nobuffer" || buffering=
  36
  37         for module in slhc ppp_generic ppp_async ip_gre; do
  38                 /sbin/insmod $module 2>&- >&-
  39         done
  40         sleep 1
  41
  42         setup_interface "$device" "$config" "${ipproto:-dhcp}"
  43         local gw="$(find_gw)"
  44         [ -n "$gw" ] && {
  45                 local serv_addrs=""
  46                 for ip in $(resolveip -4 -t 3 "$server"); do
  47                         append serv_addrs "$ip"
  48                         route delete -host "$ip" 2>/dev/null
  49                         route add -host "$ip" gw "$gw"
  50                 done
  51                 uci_toggle_state network "$config" serv_addrs "$serv_addrs"
  52         }
  53
  54         # fix up the netmask
  55         config_get netmask "$config" netmask
  56         [ -z "$netmask" -o -z "$device" ] || ifconfig $device netmask $netmask
  57
  58         config_get mtu "$config" mtu
  59         mtu=${mtu:-1452}
  60         start_pppd "$config" \
  61                 pty "/usr/sbin/pptp $server --loglevel 0 --nolaunchpppd $buffering" \
  62                 file /etc/ppp/options.pptp \
  63                 mtu $mtu mru $mtu
  64 }