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Difference between revisions of "Neutron/VPNaaS"

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| dpd_actions||string||no||CRU||hold||"hold / clear / disabled /restart /restart_by_peer"||DPD actions controls the use of Dead Peer Detection Protocol. ( clear, hold, restart, disabled, restart-by-peer)
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| dpd_interval||integer||no||CRU||30||> 0||sec for DPD delay

Revision as of 17:55, 15 July 2013

Overview

VPNaaS (VPN-as-a-Service) is a Neutron extension that introduces VPN feature set.

The following is the proposed plan for design and implementation of the VPN as a Service feature in OpenStack Networking for the Havana release. While our long term goal for VPNaaS is to make it very feature rich and to support multiple tunneling,security protocols that supports both static and dynamic routing, but for the short term we would want to deliver a basic experimental reference implementation based on opensource for IPsec based VPNs using just static routing that will allow us to evaluate the API, resource model and usability of this feature. This will allow us to gather feedback, and make enhancements if required.

Also we would like to have a simple model such as the AWS for configuring the VPN. In AWS the IKE and IPsec Policies are pre-defined, but we would want to make it more user configurable rather than pre-defined templates.

Again for simplicity we will be just implementing IKE with “PSK” authentication mode rather than using certificates. In future we can extend to support certificate based authentication.

DataModel

VPNServices Resource

Attribute Type Required CRUD DefaultValue Validation Constraint Notes
id uuid-str N/A R generated N/A UUID for VPNService Object
tenant_id uuid-str Yes CR None valid tenant_id UUID of the tenant for the vpn service
name string no CRU None N/A name of the VPN Service
description string no CRU None N/A Description of the VPN Service
status string N/A R N/A N/A Indicates whether ipsec vpnservice is currently operational. Possible values include:

ACTIVE DOWN BUILD ERROR

admin_state_up bool N/A CRU TRUE true/false Administrative state of vpnservice. If false (down), port does not forward packets
subnet_id uuid yes*( subnet_id is needed) CR N/A Valid subnet id Subnet id in which the tenant wants the vpn service
router_id uuid yes CR N/A Valid router id Router id to which the vpn service is inserted

IKEPolicy Resource

Attribute Type Required CRUD DefaultValue Validation Constraint Notes
id uuid-str N/A R generated N/A UUID for  the  IKEPolicy
tenant_id uuid-str Yes CR None valid tenant_id UUID for owner of the vpn service
name string no CRU None N/A friendly name for the ikepolicy
description string no CRU None N/A Description of the ikepolicy
auth_algorithm string no CRU sha1 N/A Authentication Hash algorithms“sha1”.
encryption_algorithm string no CRU aes-128 N/A Encryption Algorithms 3des, aes-128, aes-256, aes-192 etc.,
phase1_negotiation_mode string no CRU Main Mode N/A IKE mode Main mode
lifetime_units string no CRU seconds "seconds / kilobytes" Lifetime of the  SA unit in ‘seconds’ or ‘kilobytes’
lifetime_value integer no CRU 3600 for seconds OR 1843200 for kilobytes Integer Lifetime value in  seconds or kilobytes
pfs string no CRU Group5 N/A Perfect Forward Secrecy  ( Group2, Group5, Group14)
ike_version string no CRU v1 N/A v1 or v2 version

IPsecPolicys Resource

Attribute Type Required CRUD DefaultValue Validation Constraint Notes
id uuid-str N/A R generated N/A UUID for  the  IPsecPolicy
tenant_id uuid-str Yes CR None valid tenant_id UUID for owner of the vpn service
name string no CRU None N/A friendly name for the IPsecPolicy
description string no CRU None N/A Description of  the policy
transform_protocol string no CRU ESP N/A Tranform  Protocol used such as ESP or AH or AH-ESP
encapsulation_mode string no CRU tunnel N/A Encapsulation mode either Tunnel mode or transport mode
auth_algorithm string no CRU sha1 N/A Authentication algorithm sha1
encryption_algorithm string no CRU aes-128 N/A Encryption Algorithms 3des, aes-128, aes-256, aes-192
lifetime_units string no CRU seconds "seconds / kilobytes" Lifetime of the  SA unit in ‘seconds’ or ‘kilobytes’
lifetime_value integer no CRU 3600 for seconds OR 1843200 for kilobytes Integer Lifetime value in  seconds or kilobytes
pfs string no CRU group5 N/A Perfect Forward Secrecy  ( group2, group5, group14)

VPNConnections Resource

Attribute Type Required CRUD DefaultValue Validation Constraint Notes
id uuid-str N/A R generated N/A UUID for  the vpns connection
tenant_id uuid-str Yes CR None valid tenant_id UUID for owner of the  vpn service
name string no CRU None N/A name for vpnconnection
description string no CRU None N/A Description of the vpnconnection
peer_address ipaddress(v4 or v6) yes CRU N/A valid ip address (v4 or v6) peer vpn gateway public address or FQDN
peer_id string yes CRU N/A N/A Peer identifier ( Can be name, string or FQDN )
peer_cidrs list[string] yes CRU N/A list of valid cidr in the form <network_address>/<prefix> Peer private cidrs
route_mode string no R static static Static
mtu integer no CRU 1500 Integer mtu - maximum transmission unit to address fragmentation
dpd_action string no CRU hold "hold / clear / disabled /restart /restart_by_peer" DPD actions controls the use of Dead Peer Detection Protocol. ( clear, hold, restart, disabled, restart-by-peer)
dpd_interval integer no CRU 30 > 0 sec for DPD delay
dpd_timeout integer no CRU 120 > 0 & > dpd_interval sec for DPD timeout
auth_mode string no R psk psk/certs Authentication mode, either PSK or certificate
psk string yes CRU N/A NO Pre-shared-key any string.
initiator string no CRU bi-directional "bi-directional / response-only" Whether this VPN can only respond to connections or can initiate as well
admin_state_up bool N/A CRU TRUE "true / false" Administrative state of vpn connection. If false (down), vpn concd nection does not forward packets
status string N/A R N/A N/A Indicates whether vpn connection is currently operational. Possible values include:ACTIVE,DOWN,BUILD,ERROR
ikepolicy_id uuid yes CR N/A uuid of ikepolicy uuid id of ikepolicy
ipsecpolicy_id uuid yes CR N/A uuid of ipsecpolicy uuid id of ipsecpolicy
vpnservice_id uuid yes CR N/A uuid of vpnservice service id of vpnservice

Current Proposed API for VPNaaS "Neutron/VPNaaS/API"

This section describes commands that will be introduced into python-neutronclient in order to support VPNaaS advanced service.


vpn-service-create      Create a VPNService  
vpn-service-delete      Delete a given VPNService
vpn-service-list        List all VPNService for a given tenant.
vpn-service-show        Show detailed information of a given VPNService.
vpn-service-update      Update a given VPNservice.
 
vpn-ikepolicy-create       Create an IKEPolicy
vpn-ikepolicy-delete       Delete a given IKE Policy.
vpn-ikepolicy-list         List IKEPolicies that belong to a given tenant.
vpn-ikepolicy-show         Show detailed information of a given IKEPolicy.
vpn-ikepolicy-update       Update a given IKE Policy.
 
vpn-ipsecpolicy-create     Create an IPsec policy
vpn-ipsecpolicy-delete     Delete a given IPsec Policy
vpn-ipsecpolicy-list       List IPsec Policy that belong to a given tenant    connection.
vpn-ipsecpolicy-show       Show detailed information of a given IPsec Policy
vpn-ipsecpolicy-update     Update a given IPsec Policy.
 
vpn-connection-create  Create a VPNConnection
vpn-connection-delete  Delete a given VPNConnection.
vpn-connection-list    List VPNConnections that belong to a given tenant.
vpn-connection-show    Show information of a given VPNConnection.
vpn-connection-update  Update a given VPNConnection.


Command Specification

vpn-service-create

Create a new vpnservice


neutron vpn-service-create [-h] [-f {shell,table}] [-c COLUMN]
                                     [--variable VARIABLE] [--prefix PREFIX]
                                     [--request-format {json,xml}]
                                     [--tenant-id TENANT_ID]
                                     [--admin-state-down] [--name NAME]
                                     [--description DESCRIPTION] 
                                     [--router_id ROUTER_ID]
                                     --subnet_id SUBNET_ID 


  • tenant-id: ID of the Tenant that owns the VPN Service.
  • router-id: ID of the router to which the VPN will be attached to.
  • subnet-id: ID of the Subnet to which the VPN will provide service. (*)


vpn-service-delete

Delete a given vpnservice object.

neutron vpn-service-delete [-h] [--request-format {json,xml}] VPNSERVICE
  • VPNSERVICE: Unique identifier that identifies the VPN Service to be deleted.


vpn-service-list

Show list of VPN Service objects available to tenant.

neutron vpn-service-list

vpn-service-show

Shows information about a given VPN Service object.

neutron vpn-service-show [-h] [-f {shell,table}] [-c COLUMN]
                                   [--variable VARIABLE] [--prefix PREFIX]
                                   [--request-format {json,xml}] [-D]
                                   [-F FIELD]
                                   VPNSERVICE


vpn-service-update

Update information of a given VPN Service Object.

neutron vpn-service-update [-h] [--request-format {json,xml}] VPNSERVICE


vpn-ikepolicy-create

Create a new ikepolicy object


neutron vpn-ikepolicy-create [-h] [-f {shell,table}] [-c COLUMN]
              [--variable VARIABLE] [--prefix PREFIX]
              [--request-format {json,xml}]
              [--tenant-id TENANT_ID] --name NAME
              [--description DESCRIPTION]
              [--auth_algorithm AUTH_ALGORITHM]
              [--encryption_algorithm ENCRYPTION_ALGORITHM]
              [--phase1_negotiation_mode PHASE1_NEGOTIATION_MODE]
              [--lifetime_units LIFETIME_UNITS]
              [--lifetime_value LIFETIME_VALUE]
              [--ike_version IKE_VERSION]
              [--pfs PFS]

  • name: Friendly name of the IKEPolicy used in IPsec VPN Service Connections
  • description: Friendly description of the IKEPolicy used in IPsec VPN Service Connections
  • tenant-id: ID of the Tenant that owns the VPN Service.
  • auth_algorithm: Authentication algorithm used in the IKEPolicy.
  • encryption_algorithm: Encryption algorithm used in the IKEPolicy.
  • phase1_negotiation_mode: Phase1 negotiation mode for IKE either 'Main' or 'Aggressive'.
  • lifetime_units: Specify the unit of measurement for the lifetime either 'seconds' or 'kilobytes'.
  • lifetime_value: Specify the lifetime value based on the unit selected.
  • ike_version: Specify the ike_version.
  • pfs: Specify the Perfect Forward Secrecy.


vpn-ikepolicy-delete

Delete a given IKEPolicy object.

neutron vpn-ikepolicy-delete [-h] [--request-format {json,xml}]
                                    IKEPOLICY
  • IKEPOLICY: Unique identifier that identifies the IKEPolicy to be deleted.


vpn-ikepolicy-list

Show list of IKEPolicy objects available to tenant.

neutron vpn-ikepolicy-list

vpn-ikepolicy-show

Shows information about a given IKEPolicy object.

neutron vpn-ikepolicy-show [-h] [-f {shell,table}] [-c COLUMN]
                                  [--variable VARIABLE] [--prefix PREFIX]
                                  [--request-format {json,xml}] [-D]
                                  [-F FIELD]
                                  IKEPOLICY


vpn-ikepolicy-update

Update information of a given IKEPolicy Object.

neutron vpn-ikepolicy-delete [-h] [--request-format {json,xml}]
                                    IKEPOLICY


vpn-ipsecpolicy-create

Create a new ipsecpolicy object


neutron vpn-ipsecpolicy-create [-h] [-f {shell,table}] [-c COLUMN]
                [--variable VARIABLE] [--prefix PREFIX]
                [--request-format {json,xml}]
                [--tenant-id TENANT_ID] --name NAME
               	 [--description DESCRIPTION]
                 --transform_protocol TRANSFORM_PROTOCOL
                [--auth_algorithm AUTH_ALGORITHM]
                [--encryption_algorithm ENCRYPTION_ALGORITHM]
                [--encapsulation_mode ENCAPSULATION_MODE]
                [--lifetime_units LIFETIME_UNITS]
                [--lifetime_value LIFETIME_VALUE]
   	        [--pfs PFS]

  • name: Friendly name of the IPsecPolicy used in IPsec VPN Service Connections
  • description: Friendly description of the IPsecPolicy used in IPsec VPN Service Connections
  • tenant-id: ID of the Tenant that owns the VPN Service.
  • auth_algorithm: Authentication algorithm used in the IPsecPolicy.
  • encryption_algorithm: Encryption algorithm used in the IPsecPolicy.
  • encapsulation_mode: Encapsulation mode for IPsec tunnel either 'tunnel' or 'transport'.
  • transfrom_protocol: IPsec Transform Protocol either 'ESP' or 'AH'.
  • lifetime_units: Specify the unit of measurement for the lifetime either 'seconds' or 'kilobytes'.
  • lifetime_value: Specify the lifetime value based on the unit selected.
  • pfs: Specify the Perfect Forward Secrecy.

vpn-ipsecpolicy-delete

Delete a given IPsecPolicy object.

neutron vpn-ipsecpolicy-delete [-h] [--request-format {json,xml}]
                                    IPSECPOLICY
  • IPSECPOLICY: Unique identifier that identifies the IPSECPolicy to be deleted.


vpn-ipsecpolicy-list

Show list of IPSECPolicy objects available to tenant.

neutron vpn-ipsecpolicy-list

vpn-ipsecpolicy-show

Shows information about a given IPsecPolicy object.

neutron vpn-ipsecpolicy-show [-h] [-f {shell,table}] [-c COLUMN]
                                  [--variable VARIABLE] [--prefix PREFIX]
                                  [--request-format {json,xml}] [-D]
                                  [-F FIELD]
                                  IPSECPOLICY


vpn-ipsecpolicy-update

Update information of a given IPsecPolicy Object.

neutron vpn-ipsecpolicy-delete [-h] [--request-format {json,xml}]
                                    IPSECPOLICY


vpn-connection-create

Create a new vpnconnection object


neutron vpn-connection-create [-h] [-f {shell,table}]
                               [-c COLUMN]
                               [--variable VARIABLE]
      	                        [--prefix PREFIX]
                                [--request-format {json,xml}]
                                [--tenant-id TENANT_ID]
                                [--admin-state-down] --name NAME
                                [--description DESCRIPTION]
                                 --peer_address PEER_ADDRESS
                                 --peer_id PEER_ID --peer_cidrs
                                PEER_CIDRS 
                                [--mtu MTU]
                                [--dpd_action DPD_ACTION]
                                [--dpd_interval DPD_INTERVAL]
                                [--dpd_timeout DPD_TIMEOUT]
                                [--route_mode ROUTE_MODE]
                     	         [--auth_mode AUTH_MODE] [--psk PSK]
                                [--initiator INITIATOR]
                                 vpnservice ikepolicy  ipsecpolicy

  • peer_address: Remote Peer IP Address for the VPN Connection.
  • tenant-id: ID of the Tenant that owns the VPN Service.
  • peer_id: Peer identifier string.
  • peer_cidrs: Remote Peer Subnet with mask in CIDR format.
  • mtu: MTU for fragmentation
  • dpd_action: Dead peer detection action.
  • dpd_interval: Dead peer detection interval.
  • dpd_timeout: Dead peer detection timeout.
  • route_mode: Routing mode either 'static' or 'dynamic' - for first release only 'static supported.
  • auth_mode: Authentication mode either 'PSK' or 'CERTS'
  • psk: Peer identifier string.
  • initiator: Initiator mode either 'bi-directional' or 'responder'.
  • vpnservice: Unique Identifier to the VPN Service Object.
  • ikepolicy: Unique Identifier to the IKE Policy Object.
  • ipsecpolicy: Unique Identifier to the IPsec Policy Object.


vpn-connection-delete

Delete a given vpnconnection object.

neutron vpn-connection-delete [-h]
                                               [--request-format {json,xml}]
                                               VPNCONNECTION

  • VPNCONNECTION: Unique identifier that identifies the VPN Connection to be deleted.


vpn-connection-list

Show list of VPN Connection objects available to tenant.

neutron vpn-connection-list

vpn-connection-show

Shows information about a given VPN Connection object.

neutron vpn-connection-show [-h] [-f {shell,table}] [-c COLUMN]
                                   [--variable VARIABLE] [--prefix PREFIX]
                                   [--request-format {json,xml}] [-D]
                                   [-F FIELD]
                                   VPNCONNECTION


vpn-connection-update

Update information of a given VPN Connection Object.

neutron vpn-connection-update [-h] [--request-format {json,xml}] VPNCONNECTION

REST API

High-Level Task Flow

The high-level task flow for using VPNaaS API to configure IPsec VPN is as follows:

  • The tenant creates a VPNService, without any connections.
  • The tenant creates one or more IKEPolicies.
  • The tenant creates one or more IPsecPolicies.
  • The tenant creates one or more VPNConnections and associates with the VPNService id, IKEPolicy id and IPsecPolicy id.


VPNService APIs


GET
/v1.0/vpnservices/
GET
/v1.0/vpnservices/vpnservice_id
POST
/v1.0/vpnservices
UPDATE
/v1.0/vpnservices/vpnservice_id
DELETE
/v1.0/vpnservices/vpnservice_id


VPNService Create

JSON Request

#!highlight javascript numbers=disable
POST /v1.0/vpnservices
Content-Type: application/json
Accept: application/json
X-Auth-Token:xyz
Content-Length: abc

{
  "vpnservice": {
           
           "tenant_id": "310df60f-2a10-4ee5-9554-98393092194c",
           "name": "cloud_vpn",
           "subnet_id": "96a4386a-f8c3-42ed-afce-d7954eee77b3",
	   "router_id": "8acda86a-f8c3-42ed-afce-d7954eee77b3",
           }
}


JSON Response

#!highlight javascript numbers=disable
HTTP/1.1 202 Accepted
Content-Type: application/json
Content-Length: abc

{
  "vpnservice": {
           "id": "02b1fef7-16f5-4917-bf19-c40a9af805ed",
           "tenant_id": "310df60f-2a10-4ee5-9554-98393092194c",
           "name": "cloud_vpn",
           "subnet_id": "96a4386a-f8c3-42ed-afce-d7954eee77b3",
	   "router_id": "8acda86a-f8c3-42ed-afce-d7954eee77b3",
           "admin_state_up": true,
           "status": "PENDING_CREATE"
           }
}


IKEPolicy APIs

GET
/v1.0/ikepolicys/
POST
/v1.0/ikepolicys
GET
/v1.0/ikepolicys/ikepolicy_id
UPDATE
/v1.0/ikepolicys/ikepolicy_id
DELETE
/v1.0/ikepolicys/ikepolicy_id

IKEPolicy Create

JSON Request

#!highlight javascript numbers=disable
POST /v1.0/ikepolicys
Accept: application/json
Content-Type: application/json
X-Auth-Token:xyz
Content-Length: abc

{
  "ikepolicy" : {
            "name": "ikepolicy_1",
            "auth_algorithm" : "sha1",
            "encryption_algorithm" : "aes-256",
            "phase1_negotiation_mode" : "main",
	    "lifetime_unit" : "seconds"
            "lifetime_value" : "28800",
            "ike_version" : "v1",
            "pfs": " Group5",
           }
}

JSON Response

#!highlight javascript numbers=disable
HTTP/1.1 202 Accepted
Content-Type: application/json
Content-Length: abc

{
  "ikepolicy" : {
            "id":"cfc6589d-f949-4c66-99d2-c2da56ef3764",
            "tenant_id": "310df60f-2a10-4ee5-9554-98393092194c",
            "name": "ikepolicy_1",
            "auth_algorithm" : "sha1",
            "encryption_algorithm" : "aes-256",
            "phase1_negotiation_mode" : "main",
            "lifetime_units" : "seconds",
            "lifetime" : "28800",
            "ike_version" : "v1",
            "pfs": "Group5",
          }
}


IPsecPolicy APIs


GET
/v1.0/ipsecpolicys/
POST
/v1.0/ipsecpolicys
GET
/v1.0/ipsecpolicys/ipsecpolicy_id
UPDATE
/v1.0/ipsecpolicys/ipsecpolicy_id
DELETE
/v1.0/ipsecpolicys/ipsecpolicy_id

IPsecPolicy Create

JSON Request

#!highlight javascript numbers=disable
POST /v1.0/ipsecpolicys
Accept: application/json
Content-Type: application/json
X-Auth-Token:xyz
Content-Length: abc

{
  "ipsecpolicy" : {
            "name": "ipsecpolicy_1",
            "transform_protocol": "esp",
	    "auth_algorithm" : "sha1",
            "encryption_algorithm" : "aes-256",
            "encapsulation_mode" : "tunnel",
            "lifetime_units" : "seconds",
            "lifetime" : "28800s",
            "pfs": "Group5"
          }
}

JSON Response


#!highlight javascript numbers=disable
HTTP/1.1 202 Accepted
Content-Type: application/json
Content-Length: abc

{
  "ipsecpolicy" : {
            "id":"cfc6589d-f949-4c66-99d2-c2da56ef3764",
            "tenant_id": "310df60f-2a10-4ee5-9554-98393092194c",
            "name": "ipsecpolicy_1",
            "transform_protocol": "esp",
	    "auth_algorithm" : "sha1",
            "encryption_algorithm" : "aes-256",
            "encapsulation_mode" : "tunnel",
            "lifetime_units" : "seconds",
            "lifetime" : "28800",
            "pfs": "Group5"
       }
}


VPNConnection


VPNConnection APIs


GET
/v1.0/vpnconnections/
POST
/v1.0/vpnconnections
GET
/v1.0/vpnconnections/vpn_conn_id
UPDATE
/v1.0/vpnconnections/vpn_conn_id
DELETE
/v1.0/vpnconnections/vpn_conn_id

VPNConnection Create

JSON Request

#!highlight javascript numbers=disable
POST /v1.0/vpnconnections
Accept: application/json
Content-Type: application/json
X-Auth-Token:xyz
Content-Length: abc

{
  "vpnconnection" : {
            "name": "ipsec_connection_1",
            "peer_address": "192.168.2.255",
            "peer_id" : "192.168.2.255",
	    "peer_cidrs" : "10.30.2.0/24",
            "route_mode" : "static",
            "dpd_action" : "hold",
            "dpd_timeout" : "30",
            "dpd_interval": "150",
           "mtu": "1500",
           "auth_mode": "psk",
           "psk": "bla_bla_bla",
           "initiator": "bi-directional",
           "vpnservice_id": "02b1fef7-16f5-4917-bf19-c40a9af805ed",
            "ikepolicy_id": "03299abc-16f5-4917-bf19-c40a9af805ed",
            "ipsecpolicy_id": "0dbc1234-16f5-4917-bf19-c40a9af805ed"
         }
}

JSON Response


#!highlight javascript numbers=disable
HTTP/1.1 202 Accepted
Content-Type: application/json
Content-Length: abc

{
  "vpnconnection" : {
            "id":"cfc6589d-f949-4c66-99d2-c2da56ef3764",
            "tenant_id": "310df60f-2a10-4ee5-9554-98393092194c",
            "name": "ipsec_connection_1",
            "peer_address": "192.168.2.255",
            "peer_id" : "192.168.2.255",
	    "peer_cidrs" : "10.30.2.0/24",
            "route_mode" : "static",
            "dpd_action" : "hold",
            "dpd_timeout" : "30",
            "dpd_interval": "150",
           "mtu": "1500",
           "auth_mode": "psk",
           "psk": "bla_bla_bla",
           "initiator": "bi-directional",
            "vpnservice_id": "02b1fef7-16f5-4917-bf19-c40a9af805ed",
            "ikepolicy_id": "03299abc-16f5-4917-bf19-c40a9af805ed",
            "ipsecpolicy_id": "0dbc1234-16f5-4917-bf19-c40a9af805ed",
            "admin_state_up": true,
            "status": "PENDING_CREATE"
          }
}



Blueprints

VPN as a Service ( VPNaaS) APIs, DataModel and Use Cases

Havana Plan