Fix for Alpine Linux

- Fix IPsec service on Alpine Linux. Fixes #1123.
- Clean up unneeded /etc/rc.local code for this OS.

extras/vpnupgrade_alpine.sh

@@ -170,6 +170,7 @@ get_libreswan() {
 install_libreswan() {
   bigecho "Compiling and installing Libreswan, please wait..."
   cd "libreswan-$SWAN_VER" || exit 1
+  sed -i '1c\#!/sbin/openrc-run' /etc/init.d/ipsec
   service ipsec stop >/dev/null 2>&1
   sed -i '28s/stdlib\.h/sys\/types.h/' include/fd.h
 cat > Makefile.inc.local <<'EOF'
@@ -255,6 +256,7 @@ update_config() {
 restart_ipsec() {
   bigecho "Restarting IPsec service..."
   mkdir -p /run/pluto
+  sed -i '1c\#!/sbin/openrc-run' /etc/init.d/ipsec
   service ipsec restart >/dev/null 2>&1
 }
 

vpnsetup_alpine.sh

@@ -475,25 +475,10 @@ exit 0
 EOF
   chmod +x /etc/network/if-pre-up.d/iptablesload
 
+  sed -i '1c\#!/sbin/openrc-run' /etc/init.d/ipsec
   for svc in fail2ban ipsec xl2tpd; do
-    rc-update add "$svc" >/dev/null
+    rc-update add "$svc" default >/dev/null
   done
-
-  if ! grep -qs "hwdsl2 VPN script" /etc/rc.local; then
-    if [ -f /etc/rc.local ]; then
-      conf_bk "/etc/rc.local"
-    else
-      echo '#!/bin/sh' > /etc/rc.local
-    fi
-cat >> /etc/rc.local <<'EOF'
-
-# Added by hwdsl2 VPN script
-(sleep 15
-service ipsec restart
-service xl2tpd restart
-echo 1 > /proc/sys/net/ipv4/ip_forward)&
-EOF
-  fi
 }
 
 start_services() {