[package] ppp: add support for kernel mode pptp

 - add ppp-mod-pptp, based on patch by Daniel Golle <dgolle@allnet.de>
 - add netifd integration for pptp to ppp.sh

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32197 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 49 insertions, 0 deletions

diff --git a/package/ppp/files/ppp.sh b/package/ppp/files/ppp.sh
index 98099dba54..5016be850d 100755
--- a/package/ppp/files/ppp.sh
+++ b/package/ppp/files/ppp.sh
@@ -166,9 +166,58 @@ proto_pppoa_teardown() {
 	ppp_generic_teardown "$@"
 }
 
+proto_pptp_init_config() {
+	ppp_generic_init_config
+	proto_config_add_string "server"
+	proto_config_add_boolean "buffering"
+	available=1
+	no_device=1
+}
+
+proto_pptp_setup() {
+	local config="$1"
+	local iface="$2"
+
+	local ip serv_addr server
+	json_get_var server server && {
+		for ip in $(resolveip -t 5 "$server"); do
+			( proto_add_host_dependency "$config" "$ip" )
+			serv_addr=1
+		done
+	}
+	[ -n "$serv_addr" ] || {
+		echo "Could not resolve server address"
+		sleep 5
+		proto_setup_failed "$config"
+		exit 1
+	}
+
+	local buffering
+	json_get_var buffering buffering
+	[ "${buffering:-1}" == 0 ] && buffering="--nobuffer" || buffering=
+
+	local load
+	for module in slhc ppp_generic ppp_async ppp_mppe ip_gre gre pptp; do
+		grep -q "$module" /proc/modules && continue
+		/sbin/insmod $module 2>&- >&-
+		load=1
+	done
+	[ "$load" = "1" ] && sleep 1
+
+	ppp_generic_setup "$config" \
+		plugin pptp.so \
+		pptp_server $server \
+		file /etc/ppp/options.pptp
+}
+
+proto_pptp_teardown() {
+	ppp_generic_teardown "$@"
+}
+
 [ -n "$INCLUDE_ONLY" ] || {
 	add_protocol ppp
 	[ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
 	[ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
+	[ -f /usr/lib/pppd/*/pptp.so ] && add_protocol pptp
 }