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
90 lines
2.3 KiB
C++
90 lines
2.3 KiB
C++
/*
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* \brief IP 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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/* local includes */
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#include <port_route.h>
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#ifndef _IP_ROUTE_H_
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#define _IP_ROUTE_H_
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namespace Genode {
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class Xml_node;
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class Allocator;
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}
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namespace Net {
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class Ip_route;
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class Ip_route_list;
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}
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class Net::Ip_route : public Genode::List<Ip_route>::Element
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{
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private:
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Ipv4_address _ip_addr;
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Genode::uint8_t _prefix;
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Genode::uint8_t _prefix_bytes;
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Genode::uint8_t _prefix_tail;
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Ipv4_address _via;
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Ipv4_address _to;
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Genode::Session_label _label;
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Port_route_tree _udp_port_tree;
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Port_route_tree _tcp_port_tree;
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Port_route_list _udp_port_list;
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Port_route_list _tcp_port_list;
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bool _verbose;
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void _read_tcp_port(Genode::Xml_node &port, Genode::Allocator &alloc);
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void _read_udp_port(Genode::Xml_node &port, Genode::Allocator &alloc);
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public:
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Ip_route(Ipv4_address ip_addr, Genode::uint8_t prefix,
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Ipv4_address via, Ipv4_address to, char const *label,
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Genode::size_t label_size, Genode::Allocator &alloc,
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Genode::Xml_node &route, bool verbose);
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void print(Genode::Output &output) const;
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bool matches(Ipv4_address ip_addr);
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/***************
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** Accessors **
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***************/
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Ipv4_address ip_addr() const { return _ip_addr; }
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Ipv4_address via() const { return _via; }
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Ipv4_address to() const { return _to; }
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Genode::uint8_t prefix() const { return _prefix; }
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Genode::Session_label &label() { return _label; }
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Port_route_tree *tcp_port_tree() { return &_tcp_port_tree; }
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Port_route_tree *udp_port_tree() { return &_udp_port_tree; }
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Port_route_list *tcp_port_list() { return &_tcp_port_list; }
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Port_route_list *udp_port_list() { return &_udp_port_list; }
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};
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class Net::Ip_route_list : public Genode::List<Ip_route>
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{
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public:
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Ip_route *longest_prefix_match(Ipv4_address ip_addr);
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void insert(Ip_route *route);
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};
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#endif /* _IP_ROUTE_H_ */
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