Network Working Group S. Hyun Internet-Draft T. Roh Intended status: Standards Track S. Wi Expires: May 3, 2018 J. Jeong Sungkyunkwan University J. Park ETRI October 30, 2017 Registration Interface Data Model draft-hyun-i2nsf-registration-interface-dm-02 Abstract This document describes an YANG data model for I2NSF registration interface between Security Controller and Developer's Management System. The data model is required for NSF instance registration and dynamic life cycle management of NSF instances. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on May 3, 2018. Copyright Notice Copyright (c) 2017 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must Hyun, et al. Expires May 3, 2018 [Page 1] Internet-Draft Registration Interface Data Model October 2017 include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Requirements Language . . . . . . . . . . . . . . . . . . . . 2 3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.1. Tree Diagrams . . . . . . . . . . . . . . . . . . . . . . 3 4. High-Level YANG . . . . . . . . . . . . . . . . . . . . . . . 4 4.1. Registration Interface . . . . . . . . . . . . . . . . . 4 4.2. Registration Request . . . . . . . . . . . . . . . . . . 4 4.3. Instance Management Request . . . . . . . . . . . . . . . 4 4.4. NSF Profile . . . . . . . . . . . . . . . . . . . . . . . 5 4.5. NSF Access Information . . . . . . . . . . . . . . . . . 5 4.6. NSF Performance Capability . . . . . . . . . . . . . . . 6 5. YANG Modules . . . . . . . . . . . . . . . . . . . . . . . . 6 5.1. XML Example of Registration Interface Data Model . . . . 11 6. Security Considerations . . . . . . . . . . . . . . . . . . . 12 7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 12 8. References . . . . . . . . . . . . . . . . . . . . . . . . . 12 8.1. Normative References . . . . . . . . . . . . . . . . . . 12 8.2. Informative References . . . . . . . . . . . . . . . . . 13 Appendix A. Changes from draft-hyun-i2nsf-registration- interface-dm-01 . . . . . . . . . . . . . . . . . . 15 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 15 1. Introduction This document provides a YANG [RFC6020] data model that defines the required data for the registration interface between Security Controller and Developer's Management System to dynamically manage a pool of NSF instances. This document defines a YANG data model based on the [i2nsf-reg-inf-im]. The terms used in this document are defined in [i2nsf-terminology]. 2. Requirements Language The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. 3. Terminology This document uses the terminology described in [i2nsf-terminology], [capability-im], [i2nsf-framework], [nsf-triggered-steering], [supa-policy-data-model], and [supa-policy-info-model]. Hyun, et al. Expires May 3, 2018 [Page 2] Internet-Draft Registration Interface Data Model October 2017 o Network Security Function (NSF): A function that is responsible for specific treatment of received packets. A Network Security Function can act at various layers of a protocol stack (e.g., at the network layer or other OSI layers). Sample Network Security Service Functions are as follows: Firewall, Intrusion Prevention/ Detection System (IPS/IDS), Deep Packet Inspection (DPI), Application Visibility and Control (AVC), network virus and malware scanning, sandbox, Data Loss Prevention (DLP), Distributed Denial of Service (DDoS) mitigation and TLS proxy. [nsf-triggered-steering] o Advanced Inspection/Action: As like the I2NSF information model for NSF facing interface [capability-im], Advanced Inspection/ Action means that a security function calls another security function for further inspection based on its own inspection result. [nsf-triggered-steering] o Network Security Function Profile (NSF Profile): NSF Profile specifies the inspection capabilities of the associated NSF instance. Each NSF instance has its own NSF Profile to specify the type of security service it provides and its resource capacity etc. [nsf-triggered-steering] o Data Model: A data model is a representation of concepts of interest to an environment in a form that is dependent on data repository, data definition language, query language, implementation language, and protocol. [supa-policy-info-model] o Information Model: An information model is a representation of concepts of interest to an environment in a form that is independent of data repository, data definition language, query language, implementation language, and protocol. [supa-policy-info-model] 3.1. Tree Diagrams A simplified graphical representation of the data model is used in this document. The meaning of the symbols in these diagrams [i2rs-rib-data-model] is as follows: Brackets "[" and "]" enclose list keys. Abbreviations before data node names: "rw" means configuration (read-write) and "ro" state data (read-only). Symbols after data node names: "?" means an optional node and "*" denotes a "list" and "leaf-list". Hyun, et al. Expires May 3, 2018 [Page 3] Internet-Draft Registration Interface Data Model October 2017 Parentheses enclose choice and case nodes, and case nodes are also marked with a colon (":"). Ellipsis ("...") stands for contents of subtrees that are not shown. 4. High-Level YANG This section provides an overview of the high level YANG. 4.1. Registration Interface module : ietf-i2nsf-regs-interface-model +--rw regs-req | uses i2nsf-regs-req +--rw instance-mgnt-req | uses i2nsf-instance-mgnt-req Figure 1: High-Level YANG of I2NSF Registration Interface Each of these sections mirror sections of [i2nsf-reg-inf-im]. 4.2. Registration Request This section expands the i2nsf-regs-req in Figure 1. Registration Request +--rw i2nsf-regs-req +--rw nsf-profile | uses i2nsf-nsf-profile +--rw nsf-access-info | uses i2nsf-nsf-access-info Figure 2: High-Level YANG of I2NSF Registration Request Registration Request contains the capability information of newly created NSF to notify its capability to Security Controller. The request also contains Network Access Information so that the Security Controller can access the NSF. 4.3. Instance Management Request This section expands the i2nsf-instance-mgnt-req in Figure 1. Hyun, et al. Expires May 3, 2018 [Page 4] Internet-Draft Registration Interface Data Model October 2017 Instance Management Request +--rw i2nsf-instance-mgnt-req +--rw req-level uint16 +--rw req-id uint64 +--rw (req-type)? +--rw (instanciation-request) +--rw nsf-profile | uses i2nsf-nsf-profile +--rw (deinstanciation-request) +--rw nsf-access-info | uses i2nsf-nsf-access-info Figure 3: High-Level YANG of I2NSF Instance Mgnt Request Instance management request consists of two types: instanciation- request and deinstanciation-request. The instanciation-request is used to request generation of a new NSF instance with NSF Profile which specifies required NSF capability information. The deinstanciation-request is used to remove an existing NSF with NSF Access Information. 4.4. NSF Profile This section expands the i2nsf-nsf-profile in Figure 2 and Figure 3. NSF Profile +--rw i2nsf-nsf-profile +--rw i2nsf-capability | uses ietf-i2nsf-capability +--rw performance-capability | uses i2nsf-nsf-performance-caps Figure 4: High-Level YANG of I2NSF NSF Profile In Figure 4, ietf-i2nsf-capability refers module ietf-i2nsf- capability in [i2nsf-capability-dm]. We add the performance capability because it is absent in [i2nsf-capability-dm]. 4.5. NSF Access Information This section expands the i2nsf-nsf-access-info in Figure 2 and Figure 3. Hyun, et al. Expires May 3, 2018 [Page 5] Internet-Draft Registration Interface Data Model October 2017 NSF Access Information +--rw i2nsf-nsf-access-info +--rw nsf-address inet:ipv4-address +--rw nsf-port-address inet:port-number Figure 5: High-Level YANG of I2NSF NSF Access Informantion This information is used by other components to access an NSF. 4.6. NSF Performance Capability This section expands the i2nsf-nsf-performance-caps in Figure 4. NSF Performance Capability +--rw i2nsf-nsf-performance-caps +--rw processing | +--rw processing-average uint16 | +--rw processing-peak uint16 +--rw bandwidth | +--rw outbound | | +--rw outbound-average uint16 | | +--rw outbound-peak uint16 | +--rw inbound | | +--rw inbound-average uint16 | | +--rw inbound-peak uint16 Figure 6: High-Level YANG of I2NSF NSF Performance Capability When the Security Controller requests the Developer Management System to create a new NSF instance, the performance capability is used to specify the performance requirements of the new instance. 5. YANG Modules This section introduces a YANG module for the information model of the required data for the registration interface between Security Controller and Developer's Management System, as defined in the [i2nsf-reg-inf-im]. file "ietf-i2nsf-regs-interface@2017-10-27.yang" module ietf-i2nsf-regs-interface { namespace "urn:ietf:params:xml:ns:yang:ietf-i2nsf-regs-interface"; prefix regs-interface; import ietf-inet-types{ prefix inet; Hyun, et al. Expires May 3, 2018 [Page 6] Internet-Draft Registration Interface Data Model October 2017 } organization "IETF I2NSF (Interface to Network Security Functions) Working Group"; contact "WG Web: WG List: WG Chair: Adrian Farrel WG Chair: Linda Dunbar Editor: Sangwon Hyun Editor: Taekyun Roh Editor: Sarang Wi Editor: Jaehoon Paul Jeong Editor: Jung-Soo Park "; description "It defines a YANG data module for Registration Interface."; revision "2017-10-27"{ description "The second revision"; reference "draft-hares-i2nsf-capability-data-model-03 draft-hyun-i2nsf-registration-interface-im-03.txt"; } grouping i2nsf-nsf-performance-caps { description "NSF performance capailities"; container processing{ description Hyun, et al. Expires May 3, 2018 [Page 7] Internet-Draft Registration Interface Data Model October 2017 "processing info"; leaf processing-average{ type uint16; description "processing-average"; } leaf processing-peak{ type uint16; description "processing peak"; } } container bandwidth{ description "bandwidth info"; container inbound{ description "inbound"; leaf inbound-average{ type uint16; description "inbound-average"; } leaf inbound-peak{ type uint16; description "inbound-peak"; } } container outbound{ description "outbound"; leaf outbound-average{ type uint16; description "outbound-average"; } leaf outbound-peak{ type uint16; description "outbound-peak"; } } } } Hyun, et al. Expires May 3, 2018 [Page 8] Internet-Draft Registration Interface Data Model October 2017 grouping i2nsf-nsf-profile { description "Detail information of an NSF"; container performance-capability { uses i2nsf-nsf-performance-caps; description "performance-capability"; } container i2nsf-capability { description "It refers draft-hares-i2nsf-capability-data-model-04.txt later"; } } grouping i2nsf-nsf-access-info { description "NSF access information"; leaf nsf-address { type inet:ipv4-address; mandatory true; description "nsf-address"; } leaf nsf-port-address { type inet:port-number; description "nsf-port-address"; } } grouping i2nsf-regs-req { description "The capability information of newly created NSF to notify its capability to Security Controller"; container nsf-profile { description "nsf-profile"; uses i2nsf-nsf-profile; } container nsf-access-info { description "nsf-access-info"; uses i2nsf-nsf-access-info; } Hyun, et al. Expires May 3, 2018 [Page 9] Internet-Draft Registration Interface Data Model October 2017 } grouping i2nsf-instance-mgnt-req { description "Required information for instanceiation-request and deinstanciation-request"; leaf req-level { type uint16; description "req-level"; } leaf req-id { type uint64; mandatory true; description "req-id"; } choice req-type { description "req-type"; case instanciation-request { description "instanciation-request"; container nsf-profile { description "nsf-profile"; uses i2nsf-nsf-profile; } } case deinstanciation-request { description "deinstanciation-request"; container nsf-access-info { description "nsf-access-info"; uses i2nsf-nsf-access-info; } } } } } Figure 7: Data Model of I2NSF Registration Interface Hyun, et al. Expires May 3, 2018 [Page 10] Internet-Draft Registration Interface Data Model October 2017 5.1. XML Example of Registration Interface Data Model Requirement: Registering the IDS NSF with VoIP/VoLTE security capability using Registration interface. Here is the configuration xml for this Registration Interface: 1 true ids-service true ips-service 1000 5000 1000 5000 Hyun, et al. Expires May 3, 2018 [Page 11] Internet-Draft Registration Interface Data Model October 2017 1000 5000 10.0.0.1 145 Figure 8: Registration Interface example 6. Security Considerations The information model of the registration interface is based on the I2NSF framework without any architectural changes. Thus, this document shares the security considerations of the I2NSF framwork architecture that are specified in [i2nsf-framework] for the purpose of achieving secure communication among components in the proposed architecture. 7. Acknowledgements This work was supported by Institute for Information & communications Technology Promotion(IITP) grant funded by the Korea government(MSIP) (No.R-20160222-002755, Cloud based Security Intelligence Technology Development for the Customized Security Service Provisioning). 8. References 8.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs toIndicate Requirement Levels", RFC 2119, March 1997. [RFC6020] Bjorklund, M., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, October 2010. Hyun, et al. Expires May 3, 2018 [Page 12] Internet-Draft Registration Interface Data Model October 2017 8.2. Informative References [capability-im] Xia, L., Strassner, J., Basile, C., and D. Lopez, "Information Model of NSFs Capabilities", draft-xibassnez- i2nsf-capability-02 (work in progress), July 2017. [i2nsf-capability-dm] Hares, S., Jeong, J., Kim, J., Moskowitz, R., and L. Xia, "I2NSF Capability YANG Data Model", draft-hares-i2nsf- capability-data-model-04 (work in progress), October 2017. [i2nsf-framework] Lopez, D., Lopez, E., Dunbar, L., Strassner, J., and R. Kumar, "Framework for Interface to Network Security Functions", draft-ietf-i2nsf-framework-08 (work in progress), October 2017. [i2nsf-reg-inf-im] Hyun, S., Jeong, J., Woo, S., Yeo, Y., and J. Park, "Registration Interface Information Model", draft-hyun- i2nsf-registration-interface-im-01 (work in progress), July 2017. [i2nsf-terminology] Hares, S., Strassner, J., Lopez, D., Xia, L., and H. Birkholz, "Interface to Network Security Functions (I2NSF) Terminology", draft-ietf-i2nsf-terminology-04 (work in progress), July 2017. [i2rs-rib-data-model] Wang, L., Ananthakrishnan, H., Chen, M., Dass, A., Kini, S., and N. Bahadur, "A YANG Data Model for Routing Information Base (RIB)", draft-ietf-i2rs-rib-data-model-08 (work in progress), July 2017. [nsf-triggered-steering] Hyun, S., Jeong, J., Park, J., and S. Hares, "NSF- Triggered Traffic Steering", draft-hyun-i2nsf-nsf- triggered-steering-in-i2nsf-03 (work in progress), July 2017. [supa-policy-data-model] Halpern, J., Strassner, J., and S. van der Meer, "Generic Policy Data Model for Simplified Use of Policy Abstractions (SUPA)", draft-ietf-supa-generic-policy-data- model-04 (work in progress), June 2017. Hyun, et al. Expires May 3, 2018 [Page 13] Internet-Draft Registration Interface Data Model October 2017 [supa-policy-info-model] Strassner, J., Halpern, J., and S. van der Meer, "Generic Policy Information Model for Simplified Use of Policy Abstractions (SUPA)", draft-ietf-supa-generic-policy-info- model-03 (work in progress), May 2017. Hyun, et al. Expires May 3, 2018 [Page 14] Internet-Draft Registration Interface Data Model October 2017 Appendix A. Changes from draft-hyun-i2nsf-registration-interface-dm-01 The following changes are made from draft-hyun-i2nsf-registration- interface-dm-00: o The description of NSF Performance Capability is specified in more detail than the previous version. o The description of YANG data module for Registration interface was updated. The following changes are made from draft-hyun-i2nsf-registration- interface-dm-01: o We simplified the performance capability by abstracting away the details of each type of resources. o We replaced the existing dynamic life cycle management sub-model with the instance management sub-model. o The description of YANG data module for Registration interface was updated. o The references were updated to reflect the latest documents. Authors' Addresses Sangwon Hyun Department of Software Sungkyunkwan University 2066 Seobu-Ro, Jangan-Gu Suwon, Gyeonggi-Do 16419 Republic of Korea Phone: +82 31 290 7222 Fax: +82 31 299 6673 EMail: swhyun77@skku.edu URI: http://imtl.skku.ac.kr/ Hyun, et al. Expires May 3, 2018 [Page 15] Internet-Draft Registration Interface Data Model October 2017 Taekyun Roh Electrical Computer Engineering Sungkyunkwan University 2066 Seobu-Ro, Jangan-Gu Suwon, Gyeonggi-Do 16419 Republic of Korea Phone: +82 31 290 7222 Fax: +82 31 299 6673 EMail: tkroh0198@skku.ac.kr URI: http://imtl.skku.ac.kr/index.php?mid=member_student Sarang Wi Electrical Computer Engineering Sungkyunkwan University 2066 Seobu-Ro, Jangan-Gu Suwon, Gyeonggi-Do 16419 Republic of Korea Phone: +82 31 290 7222 Fax: +82 31 299 6673 EMail: dnl9795@skku.ac.kr URI: http://imtl.skku.ac.kr/index.php?mid=member_student Jaehoon Paul Jeong Department of Software Sungkyunkwan University 2066 Seobu-Ro, Jangan-Gu Suwon, Gyeonggi-Do 16419 Republic of Korea Phone: +82 31 299 4957 Fax: +82 31 290 7996 EMail: pauljeong@skku.edu URI: http://iotlab.skku.edu/people-jaehoon-jeong.php Jung-Soo Park Electronics and Telecommunications Research Institute 218 Gajeong-Ro, Yuseong-Gu Daejeon 305-700 Republic of Korea Phone: +82 42 860 6514 EMail: pjs@etri.re.kr Hyun, et al. 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