75 lines
1.7 KiB
C++
75 lines
1.7 KiB
C++
/*
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* \brief DHCP server role of a domain
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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 _DHCP_SERVER_H_
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#define _DHCP_SERVER_H_
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/* local includes */
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#include <ipv4_address_prefix.h>
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#include <bit_allocator_dynamic.h>
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/* Genode includes */
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#include <util/noncopyable.h>
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#include <util/xml_node.h>
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#include <os/duration.h>
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namespace Net { class Dhcp_server; }
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class Net::Dhcp_server : private Genode::Noncopyable
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{
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private:
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Ipv4_address const _dns_server;
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Genode::Microseconds const _ip_lease_time;
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Ipv4_address const _ip_first;
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Ipv4_address const _ip_last;
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Genode::uint32_t const _ip_first_raw;
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Genode::uint32_t const _ip_count;
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Genode::Bit_allocator_dynamic _ip_alloc;
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Genode::Microseconds _init_ip_lease_time(Genode::Xml_node const node);
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public:
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enum { DEFAULT_IP_LEASE_TIME_SEC = 3600 };
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struct Alloc_ip_failed : Genode::Exception { };
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struct Invalid : Genode::Exception { };
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Dhcp_server(Genode::Xml_node const node,
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Genode::Allocator &alloc,
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Ipv4_address_prefix const &interface);
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Ipv4_address alloc_ip();
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void free_ip(Ipv4_address const &ip);
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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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Ipv4_address const &dns_server() const { return _dns_server; }
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Genode::Microseconds ip_lease_time() const { return _ip_lease_time; }
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};
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#endif /* _DHCP_SERVER_H_ */
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