package/pptp/files/pptp.sh

   1 find_gw() {
   2         route -n | awk '$1 == "0.0.0.0" { print $2; exit }'
   3 }
   4
   5 stop_interface_pptp() {
   6         stop_interface_ppp "$1"
   7 }
   8
   9 coldplug_interface_pptp() {
  10         setup_interface_pptp "pptp-$1" "$1"
  11 }
  12
  13 setup_interface_pptp() {
  14         local config="$2"
  15         local ifname
  16
  17         local device
  18         config_get device "$config" device
  19
  20         local ipproto
  21         config_get ipproto "$config" ipproto
  22
  23         local server
  24         config_get server "$config" server
  25
  26         local buffering
  27         config_get_bool buffering "$config" buffering 1
  28         [ "$buffering" == 0 ] && buffering="--nobuffer" || buffering=
  29
  30         for module in slhc ppp_generic ppp_async ip_gre; do
  31                 /sbin/insmod $module 2>&- >&-
  32         done
  33         sleep 1
  34
  35         setup_interface "$device" "$config" "${ipproto:-dhcp}"
  36         local gw="$(find_gw)"
  37         [ -n "$gw" ] && {
  38                 [ "$gw" != 0.0.0.0 ] && route delete "$server" 2>/dev/null >/dev/null
  39                 route add "$server" gw "$gw"
  40         }
  41
  42         # fix up the netmask
  43         config_get netmask "$config" netmask
  44         [ -z "$netmask" -o -z "$device" ] || ifconfig $device netmask $netmask
  45
  46         config_get mtu "$config" mtu
  47         mtu=${mtu:-1452}
  48         start_pppd "$config" \
  49                 pty "/usr/sbin/pptp $server --loglevel 0 --nolaunchpppd $buffering" \
  50                 file /etc/ppp/options.pptp \
  51                 mtu $mtu mru $mtu
  52 }