1
0
mirror of https://github.com/OpenNebula/one.git synced 2024-12-23 17:33:56 +03:00
one/include/RangedLeases.h

147 lines
4.8 KiB
C++

/* -------------------------------------------------------------------------- */
/* Copyright 2002-2011, OpenNebula Project Leads (OpenNebula.org) */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
/* not use this file except in compliance with the License. You may obtain */
/* a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/* See the License for the specific language governing permissions and */
/* limitations under the License. */
/* -------------------------------------------------------------------------- */
#ifndef RANGED_LEASES_H_
#define RANGED_LEASES_H_
#include "Leases.h"
#include "VirtualNetwork.h"
using namespace std;
class RangedLeases : public Leases
{
public:
// *************************************************************************
// Constructor
// *************************************************************************
RangedLeases(SqlDB * db,
int _oid,
unsigned int _mac_prefix,
unsigned int _ip_start,
unsigned int _ip_end);
~RangedLeases(){};
/**
* Reads (and clears) the necessary attributes to define a Ranged VNet
* @param vn Virtual Network
* @param ip_start First IP of the range
* @param ip_end Last IP of the range
* @param error_str Error reason, if any
* @return 0 on success, -1 otherwise
*/
static int process_template(VirtualNetwork * vn,
unsigned int& ip_start, unsigned int& ip_end, string& error_str);
/**
* Returns an unused lease, which becomes used
* @param vid identifier of the VM getting this lease
* @param ip ip of the returned lease
* @param mac mac of the returned lease
* @return 0 if success
*/
int get(int vid, string& ip, string& mac);
/**
* Ask for a specific lease in the network
* @param vid identifier of the VM getting this lease
* @param ip ip of lease requested
* @param mac mac of the lease
* @return 0 if success
*/
int set(int vid, const string& ip, string& mac);
/**
* Release an used lease, which becomes unused
* @param ip of the lease in use
*/
void release(const string& ip)
{
del(ip);
}
/**
* Adds New leases.
* Only available for FIXED networks.
* @param vector_leases vector of VectorAttribute objects. For the
* moment, the vector can only contain one LEASE.
* @param error_msg If the action fails, this message contains
* the reason.
* @return 0 on success
*/
int add_leases(vector<const Attribute*>& vector_leases, string& error_msg)
{
error_msg = "Adding new leases is only supported for FIXED networks.";
return -1;
}
/**
* Removes leases; if they are not used.
* Only available for FIXED networks.
* @param vector_leases vector of VectorAttribute objects. For the
* moment, the vector can only contain one LEASE.
* @param error_msg If the action fails, this message contains
* the reason.
* @return 0 on success
*/
int remove_leases(vector<const Attribute*>& vector_leases, string& error_msg)
{
error_msg = "Removing leases is only supported for FIXED networks.";
return -1;
}
/**
* Loads the leases from the DB.
*/
int select(SqlDB * db)
{
//Read the leases from the DB
int rc = Leases::select(db);
return rc;
}
private:
unsigned int ip_start;
unsigned int ip_end;
unsigned int current;
/**
* Add a lease, from the Lease interface
* @param ip ip of the lease
* @param mac mac of the lease
* @param vid identifier of the VM getting this lease
* @return 0 if success
*/
int add(unsigned int ip, unsigned int mac[], int vid, bool used=true);
/**
* Remove a lease, from the Lease interface
* @param db pointer to DB
* @param ip ip of the lease to be deleted
* @return 0 if success
*/
int del(const string& ip);
};
#endif /*RANGED_LEASES_H_*/