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3fa10a2ddf
* VM, VMTEMPLATE, VNET & IMAGE objects have a GID attribute, and a table column. The group id is inherited from the user creating the object, except for VMs created from Templates, that inherit the Template's group.
* The new flag meaning has been modified in src/rm sources and CLI commands for one.(vm,template,vnet,image)pool.info . It changes from
-2 all, -1 mine & public, >=0 UID
to
-3 mine, -2 all, -1 mine & group
* USER has a group, but not secondary ones. The user_pool table doesn't have a GID column, we'll deal with it later when the group-users relations are implemented.
* onedb migrator 1.rb: deleted USERNAME, and GID added.
331 lines
10 KiB
C++
331 lines
10 KiB
C++
/* -------------------------------------------------------------------------- */
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/* Copyright 2002-2011, OpenNebula Project Leads (OpenNebula.org) */
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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 VIRTUAL_NETWORK_H_
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#define VIRTUAL_NETWORK_H_
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#include "PoolSQL.h"
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#include "Leases.h"
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#include <vector>
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#include <string>
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#include <map>
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#include <time.h>
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#include <sstream>
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using namespace std;
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/* -------------------------------------------------------------------------- */
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/* -------------------------------------------------------------------------- */
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class VirtualNetworkTemplate;
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/**
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* The Virtual Network class. It represents a Virtual Network at manages its
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* leases. One lease is formed by one IP and one MAC address.
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* MAC address are derived from IP addresses.
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*/
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class VirtualNetwork : public PoolObjectSQL
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{
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public:
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/**
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* Possible types of networks
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*/
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enum NetworkType
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{
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UNINITIALIZED = -1,
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RANGED = 0,
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FIXED = 1
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};
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// *************************************************************************
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// Virtual Network Public Methods
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// *************************************************************************
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/**
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* Returns true if the Virtual Network is public
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* @return true if the Virtual Network is public
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*/
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bool isPublic()
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{
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return (public_vnet == 1);
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};
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/**
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* Publish or unpublish a virtual network
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* @param pub true to publish the image
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* @return 0 on success
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*/
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void publish(bool pub)
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{
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if (pub == true)
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{
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public_vnet = 1;
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}
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else
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{
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public_vnet = 0;
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}
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}
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/**
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* Adds Leases to the virtual network (Only implemented for FIXED networks)
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* @param leases_template template in the form LEASES = [IP=XX, MAC=XX].
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* MAC is optional. The template can only contain one LEASE
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* definition.
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* @param error_msg If the action fails, this message contains the reason.
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* @return 0 on success
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*/
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int add_leases(VirtualNetworkTemplate * leases, string& error_msg);
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/**
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* Removes Leases from the virtual network; if they are not used.(Only
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* implemented for FIXED networks)
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* @param leases_template template in the form LEASES = [IP=XX].
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* The template can only contain one LEASE definition.
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* @param error_msg If the action fails, this message contains
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* the reason.
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* @return 0 on success
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*/
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int remove_leases(VirtualNetworkTemplate* leases, string& error_msg);
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/**
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* Gets a new lease for a specific VM
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* @param vid VM identifier
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* @param _ip pointer to string for IP to be stored into
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* @param _mac pointer to string for MAC to be stored into
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* @param _bridge name of the physical bridge this VN binds to
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* @return 0 if success
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*/
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int get_lease(int vid, string& _ip, string& _mac, string& _bridge)
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{
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_bridge = bridge;
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return leases->get(vid,_ip,_mac);
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};
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/**
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* Asks for an specific lease of the given virtual network
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* @param vid VM identifier
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* @param _ip the ip of the requested lease
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* @param _mac pointer to string for MAC to be stored into
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* @param _bridge name of the physical bridge this VN binds to
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* @return 0 if success
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*/
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int set_lease(int vid, const string& _ip, string& _mac, string& _bridge)
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{
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_bridge = bridge;
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return leases->set(vid,_ip,_mac);
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};
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/**
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* Release previously given lease
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* @param _ip IP identifying the lease
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* @return 0 if success
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*/
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void release_lease(const string& ip)
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{
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return leases->release(ip);
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};
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/**
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* Gets size of the network (used + free)
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* @return number of hosts that can be fitted in this network
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*/
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unsigned int get_size()
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{
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return leases->size;
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};
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/**
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* Function to write a Virtual Network in an output stream
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*/
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friend ostream& operator<<(ostream& os, VirtualNetwork& vn);
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/**
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* Function to print the VirtualNetwork object into a string in
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* XML format
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* @param xml the resulting XML string
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* @return a reference to the generated string
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*/
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string& to_xml(string& xml) const;
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/**
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* Modifies the given nic attribute adding the following attributes:
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* * IP: leased from network
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* * MAC: leased from network
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* * BRIDGE: for this virtual network
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* @param nic attribute for the VM template
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* @param vid of the VM getting the lease
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* @return 0 on success
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*/
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int nic_attribute(VectorAttribute * nic, int vid);
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private:
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// -------------------------------------------------------------------------
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// Friends
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// -------------------------------------------------------------------------
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friend class VirtualNetworkPool;
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// *************************************************************************
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// Virtual Network Private Attributes
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// *************************************************************************
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// -------------------------------------------------------------------------
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// Binded physical attributes
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// -------------------------------------------------------------------------
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/**
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* Name of the bridge this VNW binds to
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*/
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string bridge;
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// -------------------------------------------------------------------------
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// Virtual Network Description
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// -------------------------------------------------------------------------
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/**
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* Holds the type of this network
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*/
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NetworkType type;
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/**
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* Public scope of this Virtual Network
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*/
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int public_vnet;
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/**
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* Pointer to leases class, can be fixed or ranged.
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* Holds information on given (and, optionally, possible) leases
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*/
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Leases * leases;
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// *************************************************************************
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// DataBase implementation (Private)
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// *************************************************************************
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/**
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* Execute an INSERT or REPLACE Sql query.
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* @param db The SQL DB
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* @param replace Execute an INSERT or a REPLACE
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* @return 0 on success
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*/
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int insert_replace(SqlDB *db, bool replace);
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/**
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* Bootstraps the database table(s) associated to the Virtual Network
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*/
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static void bootstrap(SqlDB * db)
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{
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ostringstream oss_vnet(VirtualNetwork::db_bootstrap);
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ostringstream oss_lease(Leases::db_bootstrap);
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db->exec(oss_vnet);
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db->exec(oss_lease);
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};
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/**
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* Function to print the VirtualNetwork object into a string in
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* XML format
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* @param xml the resulting XML string
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* @param extended If true, leases are included
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* @return a reference to the generated string
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*/
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string& to_xml_extended(string& xml, bool extended) const;
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/**
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* Rebuilds the object from an xml formatted string
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* @param xml_str The xml-formatted string
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*
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* @return 0 on success, -1 otherwise
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*/
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int from_xml(const string &xml_str);
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//**************************************************************************
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// Constructor
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//**************************************************************************
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VirtualNetwork(int uid,
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int gid,
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VirtualNetworkTemplate * _vn_template = 0);
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~VirtualNetwork();
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// *************************************************************************
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// DataBase implementation
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// *************************************************************************
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static const char * table;
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static const char * db_names;
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static const char * db_bootstrap;
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/**
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* Reads the Virtual Network (identified with its OID) from the database.
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* @param db pointer to the db
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* @return 0 on success
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*/
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int select(SqlDB * db);
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/**
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* Reads the Virtual Network (identified with its OID) from the database.
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* @param db pointer to the db
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* @param name of the network
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* @param uid of the owner
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*
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* @return 0 on success
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*/
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int select(SqlDB * db, const string& name, int uid);
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/**
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* Reads the Virtual Network leases from the database.
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* @param db pointer to the db
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* @return 0 on success
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*/
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int select_leases(SqlDB * db);
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/**
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* Writes the Virtual Network and its associated template and leases in the database.
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* @param db pointer to the db
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* @return 0 on success
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*/
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int insert(SqlDB * db, string& error_str);
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/**
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* Writes/updates the Virtual Network data fields in the database.
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* @param db pointer to the db
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* @return 0 on success
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*/
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int update(SqlDB * db)
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{
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return insert_replace(db, true);
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}
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/**
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* Deletes a VNW from the database and all its associated information:
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* - VNW template
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* - given leases
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* @param db pointer to the db
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* @return 0 on success
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*/
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int drop(SqlDB * db);
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};
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#endif /*VIRTUAL_NETWORK_H_*/
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