3c25d989f3
The nic_router component can be used to individually route IPv4 packets between multiple NIC sessions. Thereby, it can translate between different IP subnets. The component supports port forwarding, as well as the partitioning of the TCP and UDP port spaces. Fixes #114
76 lines
1.5 KiB
C++
76 lines
1.5 KiB
C++
/*
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* \brief Port routing entry
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* \author Martin Stein
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* \date 2016-08-19
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*/
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/*
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* Copyright (C) 2016 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* Genode includes */
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#include <base/session_label.h>
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#include <util/avl_tree.h>
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#include <util/list.h>
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#include <net/ipv4.h>
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#ifndef _PORT_ROUTE_H_
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#define _PORT_ROUTE_H_
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namespace Net {
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class Port_route;
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class Port_route_tree;
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using Port_route_list = Genode::List<Port_route>;
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}
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class Net::Port_route : public Genode::Avl_node<Port_route>,
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public Port_route_list::Element
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{
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private:
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Genode::uint16_t _dst;
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Genode::Session_label _label;
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Ipv4_address _via;
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Ipv4_address _to;
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public:
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Port_route(Genode::uint16_t dst, char const *label,
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Genode::size_t label_size, Ipv4_address via,
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Ipv4_address to);
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void print(Genode::Output &output) const;
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Port_route *find_by_dst(Genode::uint16_t dst);
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/**************
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** Avl_node **
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**************/
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bool higher(Port_route *route) { return route->_dst > _dst; }
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/***************
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** Accessors **
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***************/
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Genode::Session_label &label() { return _label; }
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Ipv4_address via() { return _via; }
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Ipv4_address to() { return _to; }
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Genode::uint16_t dst() { return _dst; }
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};
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struct Net::Port_route_tree : Genode::Avl_tree<Port_route>
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{
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Port_route *find_by_dst(Genode::uint16_t dst);
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};
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#endif /* _PORT_ROUTE_H_ */
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