haiku/src/servers/net/DHCPClient.h
Axel Dörfler 46ff54007d * Made the implementation more state driven.
* Now should adhere to the specs with regard to filling the DHCP_REQUEST messages
  in BOUND/RENEWAL/REBINDING states.
* Now take over the times for renewal/rebinding state from the DHCP server, if any,
  or falls back to 2/3 and 5/6 of the original lease time.
* The lease time was accidently shortened twice (to compute the renewal time, in
  case that was missing).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19489 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-12-13 13:57:57 +00:00

68 lines
1.5 KiB
C++

/*
* Copyright 2006, Haiku, Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Axel Dörfler, axeld@pinc-software.de
*/
#ifndef DHCP_CLIENT_H
#define DHCP_CLIENT_H
#include <Handler.h>
#include <Messenger.h>
#include <String.h>
#include <netinet/in.h>
class BMessageRunner;
class dhcp_message;
enum dhcp_state {
INIT,
REQUESTING,
BOUND,
RENEWAL,
REBINDING,
ACKNOWLEDGED,
};
class DHCPClient : public BHandler {
public:
DHCPClient(BMessenger target, const char* device);
virtual ~DHCPClient();
status_t Initialize();
virtual void MessageReceived(BMessage* message);
private:
status_t _Negotiate(dhcp_state state);
void _ParseOptions(dhcp_message& message, BMessage& address);
void _PrepareMessage(dhcp_message& message, dhcp_state state);
status_t _SendMessage(int socket, dhcp_message& message, sockaddr_in& address) const;
dhcp_state _CurrentState() const;
void _ResetTimeout(int socket, time_t& timeout, uint32& tries);
bool _TimeoutShift(int socket, time_t& timeout, uint32& tries);
void _RestartLease(bigtime_t lease);
BString _ToString(const uint8* data) const;
BString _ToString(in_addr_t address) const;
BMessenger fTarget;
BString fDevice;
BMessage fConfiguration;
BMessageRunner* fRunner;
uint8 fMAC[6];
uint32 fTransactionID;
in_addr_t fAssignedAddress;
sockaddr_in fServer;
bigtime_t fStartTime;
bigtime_t fRenewalTime;
bigtime_t fRebindingTime;
bigtime_t fLeaseTime;
status_t fStatus;
};
#endif // DHCP_CLIENT_H