90fcba79c6
* Do not log events that are not critical (deadly) to the NIC router if not configured to be verbose, * Print almost all log lines with a prefix of the domain name they are related to, * And, do not use Genode::error and Genode::warning as they make it hard to read the log with the domain name prefixes. Fixes #2840
167 lines
4.4 KiB
C++
167 lines
4.4 KiB
C++
/*
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* \brief Downlink interface in form of a NIC session component
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* \author Martin Stein
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* \date 2016-08-23
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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 _COMPONENT_H_
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#define _COMPONENT_H_
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/* Genode includes */
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#include <base/allocator_guard.h>
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#include <root/component.h>
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#include <nic/packet_allocator.h>
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#include <nic_session/rpc_object.h>
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/* local includes */
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#include <mac_allocator.h>
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#include <interface.h>
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#include <reference.h>
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namespace Net {
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class Communication_buffer;
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class Session_component_base;
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class Session_component;
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class Root;
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}
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class Net::Communication_buffer : public Genode::Ram_dataspace_capability
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{
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private:
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Genode::Ram_session &_ram;
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public:
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Communication_buffer(Genode::Ram_session &ram,
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Genode::size_t const size);
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~Communication_buffer() { _ram.free(*this); }
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};
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class Net::Session_component_base
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{
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protected:
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Genode::Allocator_guard _guarded_alloc;
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Nic::Packet_allocator _range_alloc;
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Communication_buffer _tx_buf;
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Communication_buffer _rx_buf;
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public:
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Session_component_base(Genode::Allocator &guarded_alloc_backing,
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Genode::size_t const guarded_alloc_amount,
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Genode::Ram_session &buf_ram,
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Genode::size_t const tx_buf_size,
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Genode::size_t const rx_buf_size);
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};
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class Net::Session_component : private Session_component_base,
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public ::Nic::Session_rpc_object
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{
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private:
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struct Interface_policy : Net::Interface_policy
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{
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private:
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Genode::Session_label const _label;
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Const_reference<Configuration> _config;
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public:
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Interface_policy(Genode::Session_label const &label,
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Configuration const &config);
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/***************************
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** Net::Interface_policy **
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***************************/
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Domain_name determine_domain_name() const override;
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void handle_config(Configuration const &config) override { _config = config; }
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};
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bool _link_state { true };
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Interface_policy _interface_policy;
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Interface _interface;
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public:
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Session_component(Genode::Allocator &alloc,
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Timer::Connection &timer,
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Genode::size_t const amount,
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Genode::Ram_session &buf_ram,
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Genode::size_t const tx_buf_size,
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Genode::size_t const rx_buf_size,
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Genode::Region_map ®ion_map,
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Mac_address const mac,
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Genode::Entrypoint &ep,
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Mac_address const &router_mac,
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Genode::Session_label const &label,
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Interface_list &interfaces,
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Configuration &config);
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/******************
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** Nic::Session **
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******************/
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Mac_address mac_address() override { return _interface.mac(); }
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bool link_state() override { return _interface.link_state(); }
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void link_state_sigh(Genode::Signal_context_capability sigh) override {
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_interface.session_link_state_sigh(sigh); }
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};
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class Net::Root : public Genode::Root_component<Session_component>
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{
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private:
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enum { MAC_ALLOC_BASE = 0x02 };
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Timer::Connection &_timer;
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Mac_allocator _mac_alloc;
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Genode::Entrypoint &_ep;
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Mac_address const _router_mac;
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Reference<Configuration> _config;
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Genode::Ram_session &_buf_ram;
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Genode::Region_map &_region_map;
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Interface_list &_interfaces;
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void _invalid_downlink(char const *reason);
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/********************
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** Root_component **
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********************/
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Session_component *_create_session(char const *args) override;
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public:
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Root(Genode::Entrypoint &ep,
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Timer::Connection &timer,
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Genode::Allocator &alloc,
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Configuration &config,
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Genode::Ram_session &buf_ram,
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Interface_list &interfaces,
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Genode::Region_map ®ion_map);
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void handle_config(Configuration &config) { _config = Reference<Configuration>(config); }
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};
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#endif /* _COMPONENT_H_ */
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