[backfire] merge ppp, pppoe, pptp and 3g fixes

r21283, r21284, r21285, r21287, r21302, r21303, r21341,
r21361, r21379, r21383, r21386, r21387, r21388, r21389,
r21390, r21391, r21392, r21393, r21426, r21556, r21563


git-svn-id: svn://svn.openwrt.org/openwrt/branches/backfire@21564 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/pptp/files/pptp.sh

@@ -1,20 +1,32 @@
-scan_pptp() {
-	scan_ppp "$@"
-}
-
 find_gw() {
 	route -n | awk '$1 == "0.0.0.0" { print $2; exit }'
 }
 
+stop_interface_pptp() {
+	stop_interface_ppp "$1"
+}
+
+coldplug_interface_pptp() {
+	setup_interface_pptp "pptp-$1" "$1"
+}
 
 setup_interface_pptp() {
 	local config="$2"
 	local ifname
-	
+
+	local device
 	config_get device "$config" device
+
+	local ipproto
 	config_get ipproto "$config" ipproto
+
+	local server
 	config_get server "$config" server
 
+	local buffering
+	config_get_bool buffering "$config" buffering 1
+	[ "$buffering" == 0 ] && buffering="--nobuffer" || buffering=
+
 	for module in slhc ppp_generic ppp_async ip_gre; do
 		/sbin/insmod $module 2>&- >&-
 	done
@@ -23,7 +35,7 @@ setup_interface_pptp() {
 	setup_interface "$device" "$config" "${ipproto:-dhcp}"
 	local gw="$(find_gw)"
 	[ -n "$gw" ] && {
-		route delete "$server" 2>/dev/null >/dev/null
+		[ "$gw" != 0.0.0.0 ] && route delete "$server" 2>/dev/null >/dev/null
 		route add "$server" gw "$gw"
 	}
 
@@ -31,15 +43,10 @@ setup_interface_pptp() {
 	config_get netmask "$config" netmask
 	[ -z "$netmask" -o -z "$device" ] || ifconfig $device netmask $netmask
 
-	# make sure the network state references the correct ifname
-	scan_ppp "$config"
-	config_get ifname "$config" ifname
-	uci_set_state network "$config" ifname "$ifname"
-
 	config_get mtu "$config" mtu
 	mtu=${mtu:-1452}
 	start_pppd "$config" \
-		pty "/usr/sbin/pptp $server --loglevel 0 --nolaunchpppd" \
+		pty "/usr/sbin/pptp $server --loglevel 0 --nolaunchpppd $buffering" \
 		file /etc/ppp/options.pptp \
 		mtu $mtu mru $mtu
 }