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one/include/VirtualNetworkPool.h
Vlastimil Holer 096754b63f
M #-: Bump year to 2021 (#778)
2021-02-09 16:07:56 +01:00

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/* -------------------------------------------------------------------------- */
/* Copyright 2002-2021, OpenNebula Project, OpenNebula Systems */
/* */
/* 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 VIRTUAL_NETWORK_POOL_H_
#define VIRTUAL_NETWORK_POOL_H_
#include "PoolSQL.h"
#include "VirtualNetwork.h"
#include "BitMap.h"
#include "OneDB.h"
class AuthRequest;
class VirtualMachineNic;
/**
* The Virtual Network Pool class. ...
*/
class VirtualNetworkPool : public PoolSQL
{
public:
VirtualNetworkPool(SqlDB * db,
const std::string& str_mac_prefix,
int default_size,
std::vector<const SingleAttribute *>& restricted_attrs,
std::vector<const SingleAttribute *>& encrypted_attrs,
const std::vector<const SingleAttribute *>& _inherit_attrs,
const VectorAttribute * vlan_conf,
const VectorAttribute * vxlan_conf);
~VirtualNetworkPool(){};
//--------------------------------------------------------------------------
// Virtual Network DB access functions
//--------------------------------------------------------------------------
/**
* Function to allocate a new VNET object
* @param uid user identifier
* @param gid the id of the group this object is assigned to
* @param uname user name
* @param gname group name
* @param umask permissions umask
* @param vn_template a VirtualNetworkTemplate describing the VNET
* @param oid the id assigned to the VM (output)
* @param cluster_ids the ids of the clusters this VNET will belong to
* @param error_str Returns the error reason, if any
* @return oid on success, -1 error
*/
int allocate (
int uid,
int gid,
const std::string& uname,
const std::string& gname,
int umask,
int parent_vid,
std::unique_ptr<VirtualNetworkTemplate> vn_template,
int * oid,
const std::set<int> &cluster_ids,
std::string& error_str);
/**
* Drops a Virtual Network and the associated VLAN_ID if needed
*/
int drop(PoolObjectSQL * vn, std::string& error_msg)
{
release_vlan_id(static_cast<VirtualNetwork *>(vn));
return PoolSQL::drop(vn, error_msg);
};
/**
* Gets an object from the pool (if needed the object is loaded from the
* database). The object is locked, other threads can't access the same
* object. The lock is released by destructor.
* @param oid the VN unique identifier
* @return a pointer to the VN, nullptr in case of failure
*/
std::unique_ptr<VirtualNetwork> get(int oid)
{
return PoolSQL::get<VirtualNetwork>(oid);
}
/**
* Gets a read only object from the pool (if needed the object is loaded from the
* database). No object lock, other threads may work with the same object.
* @param oid the VN unique identifier
* @return a pointer to the VN, nullptr in case of failure
*/
std::unique_ptr<VirtualNetwork> get_ro(int oid)
{
return PoolSQL::get_ro<VirtualNetwork>(oid);
}
/**
* Gets an object from the pool (if needed the object is loaded from the
* database). The object is locked, other threads can't access the same
* object. The lock is released by destructor.
* @param name of the object
* @param uid id of owner
*
* @return a pointer to the object, 0 in case of failure
*/
std::unique_ptr<VirtualNetwork> get(const std::string& name, int uid)
{
return PoolSQL::get<VirtualNetwork>(name,uid);
}
/**
* Gets a read only object from the pool (if needed the object is loaded from the
* database). No object lock, other threads may work with the same object.
* @param name of the object
* @param uid id of owner
*
* @return a pointer to the object, 0 in case of failure
*/
std::unique_ptr<VirtualNetwork> get_ro(const std::string& name, int uid)
{
return PoolSQL::get_ro<VirtualNetwork>(name,uid);
}
/**
* Bootstraps the database table(s) associated to the VirtualNetwork pool
* @return 0 on success
*/
static int bootstrap(SqlDB * _db)
{
std::ostringstream oss;
int rc;
rc = VirtualNetwork::bootstrap(_db);
rc += _db->exec_local_wr(BitMap<0>::bootstrap(vlan_table, oss));
return rc;
};
/**
* Dumps the Virtual Network pool in XML format. A filter can be also added
* to the query
* @param oss the output stream to dump the pool contents
* @param where filter for the objects, defaults to all
* @param sid first element used for pagination
* @param eid last element used for pagination, -1 to disable
* @param desc descending order of pool elements
*
* @return 0 on success
*/
int dump(std::string& oss, const std::string& where, int sid, int eid,
bool desc)
{
return PoolSQL::dump(oss, "VNET_POOL", "body", one_db::vn_table,
where, sid, eid, desc);
}
/**
* Get the mac prefix
* @return the mac prefix
*/
static const unsigned int& mac_prefix()
{
return _mac_prefix;
};
/**
* Get the default network size
* @return the size
*/
static const unsigned int& default_size()
{
return _default_size;
};
/**
* Gets the IDs of VNETs matching the given SQL where string.
* @param oids a vector that contains the IDs
* @param where SQL clause
* @return 0 on success
*/
int search(std::vector<int>& oids, const std::string& where)
{
return PoolSQL::search(oids, one_db::vn_table, where);
};
//--------------------------------------------------------------------------
// NIC Attribute build functions
//--------------------------------------------------------------------------
/**
* Generates a NIC attribute for VM templates using the VirtualNetwork
* metadata
* @param nic the nic attribute to be generated
* @param nic_id the id for this NIC
* @param uid of the VM owner
* @param vid of the VM requesting the lease
* @param error_str string describing the error
* @return 0 on success,
* -1 error,
* -2 not using the pool
*/
int nic_attribute(
PoolObjectSQL::ObjectType ot,
VirtualMachineNic * nic,
int nic_id,
int uid,
int vid,
std::string& error_str);
/**
* Generates an Authorization token for a NIC attribute
* @param nic the nic to be authorized
* @param ar the AuthRequest
* @param check_lock for check if the resource is lock or not
* @param uid of user making the request
* @param sgs to check the security groups
*/
void authorize_nic(
PoolObjectSQL::ObjectType ot,
VirtualMachineNic * nic,
int uid,
AuthRequest * ar,
std::set<int> & sgs,
bool check_lock);
//--------------------------------------------------------------------------
// VNET Reservation interface
//--------------------------------------------------------------------------
/**
* Reserve an address range
* @param pid the parent VNET ID to get the leases from
* @param rid the reservation VNET ID to store the reserved AR
* @param rsize number of addresses to reserve
* @param err error message
* @return 0 on success
*/
int reserve_addr(int pid, int rid, unsigned int rsize, std::string& err);
/**
* Reserve an address range
* @param pid the parent VNET ID to get the leases from
* @param rid the reservation VNET ID to store the reserved AR
* @param rsize number of addresses to reserve
* @param ar_id AR to make the reservation from
* @param err error message
* @return 0 on success
*/
int reserve_addr(int pid, int rid, unsigned int rsize, unsigned int ar_id,
std::string& err);
/**
* Reserve an address range
* @param pid the parent VNET ID to get the leases from
* @param rid the reservation VNET ID to store the reserved AR
* @param rsize number of addresses to reserve
* @param ar_id AR to make the reservation from
* @param ip/mac the first ip/mac in the reservations
* @param err error message
* @return 0 on success
*/
int reserve_addr_by_ip(int pid, int rid, unsigned int rsize,
unsigned int ar_id, const std::string& ip, std::string& err);
int reserve_addr_by_ip6(int pid, int rid, unsigned int rsize,
unsigned int ar_id, const std::string& ip, std::string& err);
int reserve_addr_by_mac(int pid, int rid, unsigned int rsize,
unsigned int ar_id, const std::string& mac, std::string& err);
private:
/**
* Holds the system-wide MAC prefix
*/
static unsigned int _mac_prefix;
/**
* Default size for Virtual Networks
*/
static unsigned int _default_size;
/**
* VNet attributes to be injected into the VM nic
*/
std::vector<std::string> inherit_attrs;
/**
* Configuration attributes for the vlan_id pool
*/
const VectorAttribute vlan_conf;
/**
* ID for the VLAN_BITMAP, to store it in the DB
*/
static const int VLAN_BITMAP_ID;
/**
* Configuration attributes for the vxlan_id pool
*/
const VectorAttribute vxlan_conf;
/**
* Virtual Network bitmap pool for VLANs table
*/
static const char * vlan_table;
//--------------------------------------------------------------------------
// NIC Attribute build functions
//--------------------------------------------------------------------------
/**
* Function to get a VirtualNetwork by its name, as provided by a VM
* template
*/
std::unique_ptr<VirtualNetwork> get_nic_by_name(VirtualMachineNic * nic,
const std::string& name,
int _uidi,
bool ro,
std::string& error);
/**
* Function to get a VirtualNetwork by its id, as provided by a VM template
*/
std::unique_ptr<VirtualNetwork> get_nic_by_id(const std::string& id_s,
bool ro,
std::string& error);
//--------------------------------------------------------------------------
// VLAN ID management functions
//--------------------------------------------------------------------------
/**
* Gets a free VLAN_ID, if not set by the user, and for VXLAN, VLAN and
* OVSWITCH networks.
* @param vn pointer to the network
* @return 0 on success
*/
int set_vlan_id(VirtualNetwork * vn);
/**
* Helper functions to compute the next vlan_id for 802.1Q and VXLAN.
* @param vnid network id
* @param vlan_var, attribute to store the vlan_id
* @param auto_var, attribute to flag this vlan_id as auto generated
*/
int set_8021Q_id(int vnid, std::string& vlan_var, bool& auto_var);
int set_vxlan_id(int vnid, std::string& vlan_var, bool& auto_var);
/**
* Free a previously allocated VLAN ID if needed
* @param vn pointer to the network
*/
void release_vlan_id(VirtualNetwork *vn);
//--------------------------------------------------------------------------
// VNET Reservation Functions
//--------------------------------------------------------------------------
/**
* Allocate a new AR from the given VNET
* @param rid VNET ID
* @param err string if any
* @return pointer to the allocated AR
*/
AddressRange * allocate_ar(int rid, std::string &err);
/**
* Adds a new AR to a VNET
* @param rid VNET ID
* @param ar pointer to the AR
* @param err string if any
* @return 0 on success
*/
int add_ar(int rid, AddressRange *rar, std::string &err);
/**
* Factory method to produce VN objects
* @return a pointer to the new VN
*/
PoolObjectSQL * create()
{
std::set <int> empty;
return new VirtualNetwork(-1,-1,"","",0,-1,empty,0);
};
};
#endif /*VIRTUAL_NETWORK_POOL_H_*/
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