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one/include/VirtualNetwork.h
Alejandro Huertas Herrero 2c9bbb9642 B #3070: delete IPAM ars when deleting vnet (#3719)
2019-09-17 15:53:02 +02:00

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/* -------------------------------------------------------------------------- */
/* Copyright 2002-2019, 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_H_
#define VIRTUAL_NETWORK_H_
#include "PoolSQL.h"
#include "VirtualNetworkTemplate.h"
#include "Clusterable.h"
#include "AddressRangePool.h"
#include "ObjectCollection.h"
#include <vector>
#include <string>
#include <map>
#include <time.h>
#include <sstream>
using namespace std;
class VirtualMachineNic;
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
/**
* The Virtual Network class. It represents a Virtual Network at manages its
* leases. One lease is formed by one IP and one MAC address.
* MAC address are derived from IP addresses.
*/
class VirtualNetwork : public PoolObjectSQL, public Clusterable
{
public:
/**
* Defines the Virtual Network type based on its associated driver
*/
enum VirtualNetworkDriver
{
NONE = 0,
DUMMY = 1,
VLAN = 2,
EBTABLES = 3,
FW = 4,
OVSWITCH = 5,
VXLAN = 6,
VCENTER = 7,
OVSWITCH_VXLAN = 8,
BRIDGE = 9
};
enum BridgeType {
UNDEFINED = 0,
LINUX = 1,
OPENVSWITCH = 2,
OPENVSWITCH_DPDK = 3,
VCENTER_PORT_GROUPS = 4,
BRNONE = 5
};
static string driver_to_str(VirtualNetworkDriver ob)
{
switch (ob)
{
case NONE: return "";
case DUMMY: return "dummy";
case VLAN: return "802.1Q";
case EBTABLES: return "ebtables";
case FW: return "fw";
case OVSWITCH: return "ovswitch";
case VXLAN: return "vxlan";
case VCENTER: return "vcenter";
case OVSWITCH_VXLAN: return "ovswitch_vxlan";
case BRIDGE: return "bridge";
}
};
static VirtualNetworkDriver str_to_driver(const string& ob)
{
if ( ob == "dummy" )
{
return DUMMY;
}
else if ( ob == "802.1Q" )
{
return VLAN;
}
else if ( ob == "ebtables" )
{
return EBTABLES;
}
else if ( ob == "fw" )
{
return FW;
}
else if ( ob == "ovswitch" )
{
return OVSWITCH;
}
else if ( ob == "vxlan" )
{
return VXLAN;
}
else if ( ob == "vcenter" )
{
return VCENTER;
}
else if ( ob == "ovswitch_vxlan" )
{
return OVSWITCH_VXLAN;
}
else if ( ob == "bridge" )
{
return BRIDGE;
}
else
{
return NONE;
}
};
static string bridge_type_to_str(BridgeType ob)
{
switch (ob)
{
case UNDEFINED:
case LINUX:
return "linux";
case OPENVSWITCH:
return "openvswitch";
case OPENVSWITCH_DPDK:
return "openvswitch_dpdk";
case VCENTER_PORT_GROUPS:
return "vcenter_port_groups";
case BRNONE:
return "none";
break;
}
};
static BridgeType str_to_bridge_type(const string& ob)
{
if ( ob == "linux" )
{
return LINUX;
}
else if ( ob == "openvswitch" )
{
return OPENVSWITCH;
}
else if ( ob == "openvswitch_dpdk" )
{
return OPENVSWITCH_DPDK;
}
else if ( ob == "vcenter_port_groups" )
{
return VCENTER_PORT_GROUPS;
}
else if (ob == "none")
{
return BRNONE;
}
else
{
return UNDEFINED;
}
};
/**
* Check consistency of PHYDEV, BRIDGE and VLAN attributes depending on
* the network driver
* @param error_str describing the error
* @return 0 on success -1 otherwise
*/
static int parse_phydev_vlans(const Template* tmpl, const string& vn_mad, const string& phydev,
const string& bridge, const bool auto_id, const string& vlan_id,
const bool auto_outer, const string& outer_id, string& estr);
// *************************************************************************
// Virtual Network Public Methods
// *************************************************************************
/**
* Factory method for virtual network templates
*/
Template * get_new_template() const override
{
return new VirtualNetworkTemplate;
}
/**
* Fills a auth class to perform an authZ/authN request based on the object
* attributes. Disables the cluster and all NET rules (NET* and NET/%) for
* reservations.
* @param auths to be filled
*/
void get_permissions(PoolObjectAuth& auths) override;
// *************************************************************************
// Address Range management interface
// *************************************************************************
/**
* Add a set of address ranges to the virtual network
* @param ars_tmpl template in the form AR = [TYPE=...,IP=...,SIZE=...].
* @param error_msg If the action fails, this message contains the reason.
* @return 0 on success
*/
int add_ar(VirtualNetworkTemplate * ars_tmpl, string& error_msg);
/**
* Adds a set of address ranges
* @param var a vector of address ranges
* @param error_msg If the action fails, this message contains the reason.
* @return 0 on success
*/
int add_var(vector<VectorAttribute *> &var, string& error_msg);
/**
* Removes an address range from the VNET
* @param ar_id of the address range
* @param error_msg If the action fails, this message contains the reason.
* @return 0 on success
*/
int rm_ar(unsigned int ar_id, string& error_msg);
/**
* Removes all address ranges from the VNET
* @param error_msg If the action fails, this message contains the reason.
* @return 0 on success
*/
int rm_ars(string& error_msg);
/**
* Allocates a new (and empty) address range. It is not added to the
* ar_pool
* @return pointer to the new address range
*/
AddressRange * allocate_ar(const string& ipam_mad)
{
return ar_pool.allocate_ar(ipam_mad);
}
/**
* Adds a previously allocated address range to the AR pool
* @param rar pointer to the address range
* @return 0 on success
*/
int add_ar(AddressRange * rar)
{
return ar_pool.add_ar(rar);
}
/**
* Update an address range to the virtual network
* @param ars_tmpl template in the form AR = [AR_ID=...]. The address range
* is specified by the AR_ID attribute.
* @param keep_restricted If true, the restricted attributes of the
* current template will override the new template
* @param error_msg If the action fails, this message contains
* the reason.
* @return 0 on success
*/
int update_ar(
VirtualNetworkTemplate* ars_tmpl,
bool keep_restricted,
string& error_msg);
// *************************************************************************
// Address hold/release interface
// *************************************************************************
/**
* Holds a Lease, marking it as used
* @param leases template in the form LEASES = [IP=XX].
* The template can only contain one LEASE definition.
* @param error_msg If the action fails, this message contains the reason.
* @return 0 on success
*/
int hold_leases(VirtualNetworkTemplate * leases, string& error_msg);
/**
* Releases a Lease on hold
* @param leases template in the form LEASES = [IP=XX].
* The template can only contain one LEASE definition.
* @param error_msg If the action fails, this message contains
* the reason.
* @return 0 on success
*/
int free_leases(VirtualNetworkTemplate* leases, string& error_msg);
// *************************************************************************
// Address allocation funtions
// *************************************************************************
/**
* Release previously given address lease
* @param arid of the address range where the address was leased from
* @param ot the type of the object requesting the address
* @param oid the id of the object requesting the address
* @param mac MAC address identifying the lease
*/
void free_addr(unsigned int arid, PoolObjectSQL::ObjectType ot, int oid,
const string& mac)
{
ar_pool.free_addr(arid, ot, oid, mac);
if (ot == PoolObjectSQL::VROUTER)
{
vrouters.del(oid);
}
}
/**
* Release previously given address lease
* @param ot the type of the object requesting the address
* @param oid the id of the object requesting the address
* @param mac MAC address identifying the lease
*/
void free_addr(PoolObjectSQL::ObjectType ot, int oid, const string& mac)
{
ar_pool.free_addr(ot, oid, mac);
if (ot == PoolObjectSQL::VROUTER)
{
vrouters.del(oid);
}
}
/**
* Release all previously given address leases to the given object
* @param ot the type of the object requesting the address (VM or NET)
* @param obid the id of the object requesting the address
* @return the number of addresses freed
*/
int free_addr_by_owner(PoolObjectSQL::ObjectType ot, int obid)
{
return ar_pool.free_addr_by_owner(ot, obid);
}
/**
* Release a previously leased address range
* @param ot the type of the object requesting the address (VM or NET)
* @param obid the id of the object requesting the address
* @return the number of addresses freed
*/
int free_addr_by_range(unsigned int arid, PoolObjectSQL::ObjectType ot,
int obid, const string& mac, unsigned int rsize)
{
return ar_pool.free_addr_by_range(arid, ot, obid, mac, rsize);
}
/**
* Modifies the given nic attribute adding the following attributes:
* * IP: leased from network
* * MAC: leased from network
* * BRIDGE: for this virtual network
* @param nic attribute for the VM template
* @param vid of the VM getting the lease
* @param inherit_attrs Attributes to be inherited from the vnet template
* into the nic
* @return 0 on success
*/
int nic_attribute(
VirtualMachineNic * nic,
int vid,
const vector<string>& inherit_attrs);
/**
* Modifies the given nic attribute adding the following attributes:
* * IP: leased from network
* * MAC: leased from network
* @param nic attribute for the VRouter template
* @param vrid of the VRouter getting the lease
* @param inherit_attrs Attributes to be inherited from the vnet template
* into the nic
* @return 0 on success
*/
int vrouter_nic_attribute(
VirtualMachineNic * nic,
int vrid,
const vector<string>& inherit_attrs);
/**
* From a Security Group rule that uses this vnet, creates a new rule
* copy for each AR.
*
* @param rule original rule
* @param new_rules vector where the new rules will be placed. Rules must
* be deleted by the caller
*/
void process_security_rule(
VectorAttribute * rule,
vector<VectorAttribute*> &new_rules);
// *************************************************************************
// Network Reservation functions
// *************************************************************************
/**
* Reserve an address range for this network and add it to the given AR
* @param rid the reservation VNET ID to store the reserved AR
* @param rsize number of addresses to reserve
* @param rar the address range to place the reservation
* @param err error message
* @return 0 on success
*/
int reserve_addr(int rid, unsigned int rsize, AddressRange *rar, string& err);
/**
* Reserve an address range for this network and add it to the given AR
* @param rid the reservation VNET ID to store the reserved AR
* @param rsize number of addresses to reserve
* @param ar_id of the ar to make the reservation from
* @param rar the address range to place the reservation
* @param err error message
* @return 0 on success
*/
int reserve_addr(int rid, unsigned int rsize, unsigned int ar_id,
AddressRange *rar, string& error_str);
/**
* Reserve an address range for this network and add it to the given vnet
* @param rid the reservation VNET ID to store the reserved AR
* @param rsize number of addresses to reserve
* @param ar_id id of the address range to obtain the addresses
* @param ip/mac the first ip/mac in the reservations
* @param rar the address range to place the reservation
* @param err error message
* @return 0 on success
*/
int reserve_addr_by_mac(int rid, unsigned int rsize, unsigned int ar_id,
const string& mac, AddressRange *rar, string& error_str);
int reserve_addr_by_ip(int rid, unsigned int rsize, unsigned int ar_id,
const string& ip, AddressRange *rar, string& error_str);
int reserve_addr_by_ip6(int rid, unsigned int rsize, unsigned int ar_id,
const string& ip6, AddressRange *rar, string& error_str);
/**
* Returns true if this VNET is a reservation
* @return true if this VNET is a reservation
*/
bool is_reservation() const;
// *************************************************************************
// Formatting & Helper functions
// *************************************************************************
/**
* Gets used leases
* @return number of network leases in used
*/
unsigned int get_used()
{
return ar_pool.get_used_addr();
};
/**
* Gets total number of addresses
* @return the number of addresses
*/
unsigned int get_size()
{
return ar_pool.get_size();
};
/**
* Returns the parent network used to create this VNET (if any)
* @return the parent vnet id or -1 this vnet has no parent
*/
int get_parent() const
{
return parent_vid;
};
/**
* Returns the parent address range used to create this AR (if any)
* @param ar_id the id of the AR
* @return the parent AR id or -1 this vnet has no parent
*/
int get_ar_parent(int ar_id) const
{
return ar_pool.get_ar_parent(ar_id);
};
/**
* Function to print the VirtualNetwork object into a string in
* XML format
* @param xml the resulting XML string
* @return a reference to the generated string
*/
string& to_xml(string& xml) const override;
/**
* Function to print the VirtualNetwork object into a string in
* XML format. The extended XML includes the LEASES
* @param xml the resulting XML string
* @param vm_ids list of VM the user can access VNET usage info from.
* A vector containing just -1 means all VMs.
* @param vnet_ids list of VNET the user can access reservation info from.
* A vector containing just -1 means all VNETs.
* @param vrs list of VRouter the user can access reservation info from.
* A vector containing just -1 means all VRouters.
* @return a reference to the generated string
*/
string& to_xml_extended(string& xml, const vector<int>& vms,
const vector<int>& vnets, const vector<int>& vrs) const;
/**
* Gets a string based attribute (single) from an address range. If the
* attribute is not found in the address range, the VNET template will be
* used
* @param name of the attribute
* @param value of the attribute (a string), will be "" if not defined or
* not a single attribute
* @param ar_id of the address attribute.
*/
void get_template_attribute(const string& name, string& value, int ar_id) const;
/**
* int version of get_template_attribute
* @return 0 on success
*/
int get_template_attribute(const string& name, int& value, int ar_id) const;
/**
* Adds the security group of the VNet and its ARs to the given set
* @param sgs to put the sg ids in
*/
void get_security_groups(set<int> & sgs);
/**
* @return A copy of the VNET Template
*/
VirtualNetworkTemplate * clone_template() const
{
VirtualNetworkTemplate * new_vn = new VirtualNetworkTemplate(
*(static_cast<VirtualNetworkTemplate *>(obj_template)));
//Clone non-template attributes
// AUTOMATIC_VLAN_ID
// VLAN_ID
if ( vlan_id.empty() )
{
new_vn->replace("AUTOMATIC_VLAN_ID", "NO");
}
else
{
new_vn->replace("VLAN_ID", vlan_id);
}
if ( outer_vlan_id.empty() )
{
new_vn->replace("AUTOMATIC_OUTER_VLAN_ID", "NO");
}
else
{
new_vn->replace("OUTER_VLAN_ID", outer_vlan_id);
}
return new_vn;
};
/**
* Encrypt all secret attributes
*/
virtual void encrypt() override;
/**
* Decrypt all secret attributes
*/
virtual void decrypt() override;
private:
// -------------------------------------------------------------------------
// Friends
// -------------------------------------------------------------------------
friend class VirtualNetworkPool;
// *************************************************************************
// Virtual Network Private Attributes
// *************************************************************************
// -------------------------------------------------------------------------
// Binded physical attributes
// -------------------------------------------------------------------------
/**
* Name of the vn mad
*/
string vn_mad;
/**
* Name of the bridge this VNW binds to
*/
string bridge;
/**
* Name of the physical device the bridge should be attached to
*/
string phydev;
/**
* VLAN ID of the NIC. When more than VLAN ID is used this refers to the
* link layer or outer/service VLAN_ID
*/
string vlan_id;
/**
* Used for double tagging of VM traffic. This id refers to the transport
* layer or outer/service VLAN_ID
*/
string outer_vlan_id;
/**
* If the VLAN has been set automatically
*/
bool vlan_id_automatic;
/**
* If the outer VLAN has been set automatically
*/
bool outer_vlan_id_automatic;
/**
* Parent VNET ID if any
*/
int parent_vid;
/**
* Security Groups
*/
set<int> security_groups;
/**
* The Address Range Pool
*/
AddressRangePool ar_pool;
/**
* Set of Virtual Router IDs
*/
ObjectCollection vrouters;
/**
* Bridge type of the VirtualNetwork
*/
string bridge_type;
// *************************************************************************
// VLAN ID functions
// *************************************************************************
/**
* This function parses the VLAN attribute and clears the associated
* automatic flag if set.
* @param id_name of the VLAN attribute VLAN_ID or OUTER_VLAN_ID
* @param auto_name of automatic flag AUTOMATIC_VLAN_ID or
* AUTOMATIC_OUTER_VLAN_ID
* @param id the associated vlan variable
* @param auto the associated automatic variable
*/
void parse_vlan_id(const char * id_name, const char * auto_name,
string& id, bool& auto_id);
// *************************************************************************
// Address allocation funtions
// *************************************************************************
/**
* Gets a new address lease for a specific VM
* @param ot the type of the object requesting the address
* @param oid the id of the object requesting the address
* @param nic the VM NIC attribute to be filled with the lease info.
* @param inherit attributes from the address range to include in the NIC
* @return 0 if success
*/
int allocate_addr(PoolObjectSQL::ObjectType ot, int oid,
VectorAttribute * nic, const vector<string>& inherit)
{
return ar_pool.allocate_addr(ot, oid, nic, inherit);
}
/**
* Gets a new address lease for a specific VM by MAC/IP
* @param ot the type of the object requesting the address
* @param oid the id of the object requesting the address
* @param mac/ip the MAC/IP address requested
* @param nic the VM NIC attribute to be filled with the lease info.
* @param inherit attributes from the address range to include in the NIC
* @return 0 if success
*/
int allocate_by_mac(PoolObjectSQL::ObjectType ot, int oid, const string& mac,
VectorAttribute * nic, const vector<string>& inherit)
{
return ar_pool.allocate_by_mac(mac, ot, oid, nic, inherit);
}
int allocate_by_ip(PoolObjectSQL::ObjectType ot, int oid, const string& ip,
VectorAttribute * nic, const vector<string>& inherit)
{
return ar_pool.allocate_by_ip(ip, ot, oid, nic, inherit);
}
int allocate_by_ip6(PoolObjectSQL::ObjectType ot, int oid, const string& ip,
VectorAttribute * nic, const vector<string>& inherit)
{
return ar_pool.allocate_by_ip6(ip, ot, oid, nic, inherit);
}
// *************************************************************************
// BRIDGE TYPE functions
// *************************************************************************
/**
* This function parses the BRIDGE TYPE attribute.
*
* @param br_type the bridge type associated to the nic
*/
int parse_bridge_type(const string &vn_mad, string &error_str);
// *************************************************************************
// DataBase implementation (Private)
// *************************************************************************
/**
* Execute an INSERT or REPLACE Sql query.
* @param db The SQL DB
* @param replace Execute an INSERT or a REPLACE
* @param error_str Returns the error reason, if any
* @return 0 on success
*/
int insert_replace(SqlDB *db, bool replace, string& error_str);
/**
* Bootstraps the database table(s) associated to the Virtual Network
* @return 0 on success
*/
static int bootstrap(SqlDB * db)
{
ostringstream oss_vnet(VirtualNetwork::db_bootstrap);
return db->exec_local_wr(oss_vnet);
};
/**
* Function to print the VirtualNetwork object into a string in
* XML format
* @param xml the resulting XML string
* @param extended_and_check If true, leases are included and permissions are checked
* @return a reference to the generated string
*/
string& to_xml_extended(string& xml, bool extended_and_check,
const vector<int>& vm_ids, const vector<int>& vnet_oids,
const vector<int>& vr_ids) const;
/**
* Rebuilds the object from an xml formatted string
* @param xml_str The xml-formatted string
*
* @return 0 on success, -1 otherwise
*/
int from_xml(const string &xml_str) override;
/**
* Updates the BRIDGE, PHYDEV, and VLAN_ID attributes.
* @param error string describing the error if any
* @return 0 on success
*/
int post_update_template(string& error) override;
//**************************************************************************
// Constructor
//**************************************************************************
VirtualNetwork(int uid,
int gid,
const string& _uname,
const string& _gname,
int _umask,
int _parent_vid,
const set<int> &_cluster_ids,
VirtualNetworkTemplate * _vn_template = 0);
virtual ~VirtualNetwork() = default;
// *************************************************************************
// DataBase implementation
// *************************************************************************
static const char * table;
static const char * db_names;
static const char * db_bootstrap;
/**
* Writes the Virtual Network and its associated template and leases in the database.
* @param db pointer to the db
* @return 0 on success
*/
int insert(SqlDB * db, string& error_str) override;
/**
* Writes/updates the Virtual Network data fields in the database.
* @param db pointer to the db
* @return 0 on success
*/
int update(SqlDB * db) override
{
string error_str;
return insert_replace(db, true, error_str);
}
};
#endif /*VIRTUAL_NETWORK_H_*/
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