luci-proto-ipip: Add package

This package adds LuCI support for IPIP tunnels (IPv4-in-IPv4 RFC2003)

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>

protocols/luci-proto-ipip/Makefile

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+#
+# Copyright 2016 Roger Pueyo Centelles <roger.pueyo@guifi.net>
+#
+# This is free software, licensed under the Apache License, Version 2.0 .
+#
+
+include $(TOPDIR)/rules.mk
+
+LUCI_TITLE:=Support for IPIP tunnels (IPv4-in-IPv4 RFC2003)
+LUCI_DEPENDS:=+ipip
+
+PKG_MAINTAINER:=Roger Pueyo Centelles <roger.pueyo@guifi.net>
+
+include ../../luci.mk
+
+# call BuildPackage - OpenWrt buildroot signature

protocols/luci-proto-ipip/luasrc/model/cbi/admin_network/proto_ipip.lua

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+-- Copyright 2016 Roger Pueyo Centelles <roger.pueyo@guifi.net>
+-- Licensed to the public under the Apache License 2.0.
+
+local map, section, net = ...
+
+local peeraddr, ipaddr, ttl, tos, df, mtu, tunlink
+
+peeraddr = section:taboption("general", Value, "peeraddr", translate("Remote IPv4 address or FQDN"), translate("The IPv4 address or the fully-qualified domain name of the remote tunnel end."))
+peeraddr.optional = false
+peeraddr.datatype = "or(hostname,ip4addr)"
+
+ipaddr = section:taboption("general", Value, "ipaddr", translate("Local IPv4 address"), translate("The local IPv4 address over which the tunnel is created (optional)."))
+ipaddr.optional = true
+ipaddr.datatype = "ip4addr"
+
+tunlink = section:taboption("general", Value, "tunlink", translate("Bind interface"), translate("Bind the tunnel to this interface (optional)."))
+ipaddr.optional = true
+
+
+mtu = section:taboption("advanced", Value, "mtu", translate("Override MTU"), translate("Specify an MTU (Maximum Transmission Unit) other than the default (1280 bytes)."))
+mtu.optional = true
+mtu.placeholder = 1280
+mtu.datatype = "range(68, 9200)"
+
+ttl = section:taboption("advanced", Value, "ttl", translate("Override TTL"), translate("Specify a TTL (Time to Live) for the encapsulating packet other than the default (64)."))
+ttl.optional = true
+ttl.placeholder = 64
+ttl.datatype = "min(1)"
+
+tos = section:taboption("advanced", Value, "tos", translate("Override TOS"), translate("Specify a TOS (Type of Service)."))
+tos.optional = true
+tos.datatype = "range(0, 255)"
+
+df = section:taboption("advanced", Flag, "df", translate("Don't Fragment"), translate("Enable the DF (Don't Fragment) flag of the encapsulating packets."))

protocols/luci-proto-ipip/luasrc/model/network/proto_ipip.lua

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+-- Copyright 2016 Roger Pueyo Centelles <roger.pueyo@guifi.net>
+-- Licensed to the public under the Apache License 2.0.
+
+local netmod = luci.model.network
+local interface = luci.model.network.interface
+local proto = netmod:register_protocol("ipip")
+
+function proto.get_i18n(self)
+	return luci.i18n.translate("IPv4-in-IPv4 (RFC2003)")
+end
+
+function proto.ifname(self)
+	return "ipip-" .. self.sid
+end
+
+function proto.opkg_package(self)
+	return "ipip"
+end
+
+function proto.is_installed(self)
+	return nixio.fs.access("/lib/netifd/proto/ipip.sh")
+end
+
+function proto.is_floating(self)
+	return true
+end
+
+function proto.is_virtual(self)
+	return true
+end
+
+function proto.get_interfaces(self)
+	return nil
+end
+
+function proto.contains_interface(self, ifc)
+	 return (netmod:ifnameof(ifc) == self:ifname())
+end
+
+netmod:register_pattern_virtual("^ipip-%w")