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204 lines
7.3 KiB
C++
204 lines
7.3 KiB
C++
/* -------------------------------------------------------------------------- */
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/* Copyright 2002-2014, OpenNebula Project (OpenNebula.org), C12G Labs */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
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/* not use this file except in compliance with the License. You may obtain */
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/* a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
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/* See the License for the specific language governing permissions and */
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/* limitations under the License. */
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/* -------------------------------------------------------------------------- */
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#ifndef ADDRESS_RANGE_POOL_H_
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#define ADDRESS_RANGE_POOL_H_
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#include <string>
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#include <vector>
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#include <map>
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#include <libxml/parser.h>
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#include "Template.h"
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#include "AddressRange.h"
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class VectorAttribute;
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using namespace std;
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class AddressRangePool
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{
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public:
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AddressRangePool();
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virtual ~AddressRangePool();
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/**
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* Builds the address range set from an array of VectorAttributes. This
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* function is used to create address ranges.
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* @param ars the vector of address ranges
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* @param error_msg describing the error
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* @return 0 on success
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*/
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int from_vattr(vector<Attribute *> ars, string& error_msg);
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/**
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* Builds the address range set from its XML representation. This function
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* is used to rebuild the address ranges from the DB.
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* @param node xmlNode for the template
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* @return 0 on success
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*/
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int from_xml_node(const xmlNodePtr node);
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/**
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* Generate a XML representation of the Address Range Pool
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* @param sstream where the ARPool is written
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* @param extended true to include lease information
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* @return the string with the XML
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*/
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string& to_xml(string& sstream, bool extended) const;
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/**
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* Allocates an address in a suitable address range from the pool
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* @param ot the type of the object requesting the address (VM or NET)
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* @param obid the id of the object requesting the address
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* @param nic the NIC attribute to be filled with lease attributes
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* @param inherit attributes to be added to the NIC
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* @return 0 if success
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*/
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int allocate_addr(PoolObjectSQL::ObjectType ot, int obid,
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VectorAttribute * nic, const vector<string> &inherit);
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/**
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* Allocates an address in a suitable address range from the pool by mac
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* @param mac the specific MAC address requested
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* @param ot the type of the object requesting the address (VM or NET)
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* @param obid the id of the object requesting the address
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* @param nic the NIC attribute to be filled with lease attributes
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* @param inherit attributes to be added to the NIC
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* @return 0 if success
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*/
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int allocate_by_mac(const string &mac, PoolObjectSQL::ObjectType ot, int obid,
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VectorAttribute * nic, const vector<string> &inherit);
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/**
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* Allocates an address in a suitable address range from the pool by mac
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* @param ip the specific IP address requested
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* @param ot the type of the object requesting the address (VM or NET)
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* @param obid the id of the object requesting the address
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* @param nic the NIC attribute to be filled with lease attributes
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* @param inherit attributes to be added to the NIC
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* @return 0 if success
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*/
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int allocate_by_ip(const string &ip, PoolObjectSQL::ObjectType ot, int obid,
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VectorAttribute * nic, const vector<string> &inherit);
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/**
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* Holds an address from the specified address range.
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* @param arid of the address range
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* @param ip the ip to hold
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* @return 0 on success
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*/
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int hold_by_ip(unsigned int arid, const string& ip);
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/**
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* Holds an address from the first address range containing the MAC
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* @param mac the mac to hold
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* @return 0 on success
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*/
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int hold_by_ip(const string& ip);
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/**
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* Holds an address from the specified address range.
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* @param arid of the address range
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* @param mac the mac to hold
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* @return 0 on success
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*/
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int hold_by_mac(unsigned int arid, const string& mac);
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/**
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* Holds an address from the first address range containing the MAC
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* @param mac the mac to hold
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* @return 0 on success
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*/
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int hold_by_mac(const string& mac);
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/**
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* Frees the given address by MAC on the given address range
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* @param arid the ID of the address range
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* @param ot the type of the object requesting the address (VM or NET)
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* @param obid the id of the object requesting the address
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* @param mac the specific MAC address requested
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*/
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void free_addr(unsigned int arid, PoolObjectSQL::ObjectType ot, int obid,
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const string& mac);
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/**
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* Frees the given address by IP on the given address range
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* @param arid the ID of the address range
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* @param ot the type of the object requesting the address (VM or NET)
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* @param obid the id of the object requesting the address
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* @param ip the specific IP address requested
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*/
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void free_addr_by_ip(unsigned int arid, PoolObjectSQL::ObjectType ot,
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int obid, const string& ip);
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/**
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* Frees the given address by MAC from all address ranges containing
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* the MAC
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* @param arid the ID of the address range
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* @param ot the type of the object requesting the address (VM or NET)
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* @param obid the id of the object requesting the address
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* @param mac the specific MAC address requested
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*/
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void free_addr(PoolObjectSQL::ObjectType ot, int obid, const string& mac);
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/**
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* Frees the given address by IP from all address ranges containing
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* the IP
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* @param arid the ID of the address range
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* @param ot the type of the object requesting the address (VM or NET)
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* @param obid the id of the object requesting the address
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* @param ip the specific IP address requested
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*/
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void free_addr_by_ip(PoolObjectSQL::ObjectType ot, int id, const string& ip);
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/**
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* Return the number of used addresses
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*/
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unsigned int get_used_addr() const
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{
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return used_addr;
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}
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void get_attribute(const char * name, string& value, int ar_id) const;
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private:
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/**
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* Stores the Address Ranges in a template form. This template is used
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* to store the pool in the DB
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*/
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Template ar_template;
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/**
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* ID for the next Address Range
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*/
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unsigned int next_ar;
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/**
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* Map to access each range
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*/
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map<unsigned int, AddressRange *> ar_pool;
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/**
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* Used addresses
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*/
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unsigned int used_addr;
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};
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#endif
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