230 lines
8.0 KiB
C++
230 lines
8.0 KiB
C++
/*
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* \brief Reflects an effective domain configuration node
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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) 2016-2017 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 Affero General Public License version 3.
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*/
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#ifndef _DOMAIN_H_
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#define _DOMAIN_H_
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/* local includes */
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#include "forward_rule.h"
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#include "transport_rule.h"
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#include "nat_rule.h"
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#include "ip_rule.h"
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#include "arp_cache.h"
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#include "port_allocator.h"
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#include "pointer.h"
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#include "ipv4_config.h"
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#include "dhcp_server.h"
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#include "interface.h"
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#include "avl_string_tree.h"
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/* Genode includes */
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#include <util/reconstructible.h>
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namespace Genode {
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class Xml_generator;
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class Allocator;
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}
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namespace Net {
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class Interface;
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class Configuration;
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class Domain_base;
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class Domain;
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using Domain_name = Genode::String<160>;
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class Domain_tree;
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class Domain_link_stats;
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class Domain_object_stats;
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}
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struct Net::Domain_object_stats
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{
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Genode::size_t destroyed { 0 };
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void dissolve_interface(Interface_object_stats const &stats);
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void report(Genode::Xml_generator &xml);
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};
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struct Net::Domain_link_stats : Domain_object_stats
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{
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Genode::size_t refused_for_ram { 0 };
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Genode::size_t refused_for_ports { 0 };
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Genode::size_t destroyed { 0 };
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void dissolve_interface(Interface_link_stats const &stats);
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void report(Genode::Xml_generator &xml);
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};
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class Net::Domain_tree : public Avl_string_tree<Domain, Domain_name> { };
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class Net::Domain_base
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{
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protected:
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Domain_name const _name;
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Domain_base(Genode::Xml_node const node);
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};
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class Net::Domain : public Domain_base,
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public List<Domain>::Element,
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public Genode::Avl_string_base
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{
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private:
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Configuration &_config;
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Genode::Xml_node _node;
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Genode::Allocator &_alloc;
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Ip_rule_list _ip_rules { };
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Forward_rule_tree _tcp_forward_rules { };
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Forward_rule_tree _udp_forward_rules { };
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Transport_rule_list _tcp_rules { };
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Transport_rule_list _udp_rules { };
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Ip_rule_list _icmp_rules { };
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Port_allocator _tcp_port_alloc { };
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Port_allocator _udp_port_alloc { };
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Port_allocator _icmp_port_alloc { };
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Nat_rule_tree _nat_rules { };
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Interface_list _interfaces { };
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unsigned long _interface_cnt { 0 };
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Pointer<Dhcp_server> _dhcp_server { };
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Genode::Reconstructible<Ipv4_config> _ip_config;
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bool const _ip_config_dynamic { !ip_config().valid };
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List<Domain> _ip_config_dependents { };
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Arp_cache _arp_cache { *this };
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Arp_waiter_list _foreign_arp_waiters { };
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Link_side_tree _tcp_links { };
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Link_side_tree _udp_links { };
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Link_side_tree _icmp_links { };
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Genode::size_t _tx_bytes { 0 };
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Genode::size_t _rx_bytes { 0 };
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bool const _verbose_packets;
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bool const _verbose_packet_drop;
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bool const _icmp_echo_server;
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Genode::Session_label const _label;
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Domain_link_stats _udp_stats { };
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Domain_link_stats _tcp_stats { };
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Domain_link_stats _icmp_stats { };
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Domain_object_stats _arp_stats { };
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Domain_object_stats _dhcp_stats { };
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void _read_forward_rules(Genode::Cstring const &protocol,
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Domain_tree &domains,
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Genode::Xml_node const node,
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char const *type,
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Forward_rule_tree &rules);
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void _read_transport_rules(Genode::Cstring const &protocol,
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Domain_tree &domains,
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Genode::Xml_node const node,
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char const *type,
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Transport_rule_list &rules);
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void _invalid(char const *reason) const;
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void _log_ip_config() const;
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void __FIXME__dissolve_foreign_arp_waiters();
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public:
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struct Invalid : Genode::Exception { };
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struct Ip_config_static : Genode::Exception { };
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struct No_next_hop : Genode::Exception { };
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Domain(Configuration &config,
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Genode::Xml_node const node,
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Genode::Allocator &alloc);
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~Domain();
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void init(Domain_tree &domains);
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void deinit();
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Ipv4_address const &next_hop(Ipv4_address const &ip) const;
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void ip_config(Ipv4_config const &ip_config);
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void ip_config(Ipv4_address ip,
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Ipv4_address subnet_mask,
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Ipv4_address gateway,
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Ipv4_address dns_server);
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void discard_ip_config();
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void try_reuse_ip_config(Domain const &domain);
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Link_side_tree &links(L3_protocol const protocol);
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void attach_interface(Interface &interface);
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void detach_interface(Interface &interface);
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void raise_rx_bytes(Genode::size_t bytes) { _rx_bytes += bytes; }
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void raise_tx_bytes(Genode::size_t bytes) { _tx_bytes += bytes; }
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void report(Genode::Xml_generator &xml);
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/*********
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** log **
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*********/
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void print(Genode::Output &output) const;
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/***************
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** Accessors **
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***************/
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bool verbose_packets() const { return _verbose_packets; }
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bool verbose_packet_drop() const { return _verbose_packet_drop; }
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bool icmp_echo_server() const { return _icmp_echo_server; }
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Genode::Session_label const &label() const { return _label; }
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Ipv4_config const &ip_config() const { return *_ip_config; }
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List<Domain> &ip_config_dependents() { return _ip_config_dependents; }
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Domain_name const &name() const { return _name; }
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Ip_rule_list &ip_rules() { return _ip_rules; }
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Forward_rule_tree &tcp_forward_rules() { return _tcp_forward_rules; }
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Forward_rule_tree &udp_forward_rules() { return _udp_forward_rules; }
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Transport_rule_list &tcp_rules() { return _tcp_rules; }
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Transport_rule_list &udp_rules() { return _udp_rules; }
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Ip_rule_list &icmp_rules() { return _icmp_rules; }
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Nat_rule_tree &nat_rules() { return _nat_rules; }
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Interface_list &interfaces() { return _interfaces; }
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Configuration &config() const { return _config; }
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Dhcp_server &dhcp_server();
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Arp_cache &arp_cache() { return _arp_cache; }
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Arp_waiter_list &foreign_arp_waiters() { return _foreign_arp_waiters; }
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Link_side_tree &tcp_links() { return _tcp_links; }
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Link_side_tree &udp_links() { return _udp_links; }
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Link_side_tree &icmp_links() { return _icmp_links; }
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Domain_link_stats &udp_stats() { return _udp_stats; }
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Domain_link_stats &tcp_stats() { return _tcp_stats; }
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Domain_link_stats &icmp_stats() { return _icmp_stats; }
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Domain_object_stats &arp_stats() { return _arp_stats; }
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Domain_object_stats &dhcp_stats() { return _dhcp_stats; }
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};
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#endif /* _DOMAIN_H_ */
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