SIDROPS J. Snijders
Internet-Draft NTT
Intended status: Standards Track April 10, 2020
Expires: October 12, 2020
YANG Model for RPKI VRPs
draft-spaghetti-sidrops-rpki-vrp-yang-00
Abstract
This document describes a YANG model for a commonly used
datastructure for RPKI Validated ROA Payload data. This specific
datastructure is commonly used in the transport between RPKI Cache
Validators and BGP routers.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP
14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on October 12, 2020.
Copyright Notice
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document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Export Model Design and Structure . . . . . . . . . . . . . . 2
3. RPKI VRP Export Module . . . . . . . . . . . . . . . . . . . 2
4. Security Considerations . . . . . . . . . . . . . . . . . . . 4
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4
6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 4
7. Normative References . . . . . . . . . . . . . . . . . . . . 4
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 5
1. Introduction
This document defines a base YANG [RFC6020] data module to structure
RPKI [RFC6480], Validated ROA Prefix [RFC6811] (VRP) information.
Such export functionality has emerged in several implementations of
relaying party (RP) software, but was not previously standardized,
resulting in loose coordination between implementers. This module
establishes a simple and consistent interface for information export
by RPs drawing from best practices observed in existing
implementations.
2. Export Model Design and Structure
This section should explain why the specific elements have been
chosen for export, and why the structure of roas block + prefix and
AS content is the most useful or widely used.
3. RPKI VRP Export Module
<CODE BEGINS> file "rpki-vrps.yang"
module rpki-vrp {
namespace "urn:ietf:params:xml:ns:yang:rpki-vrp";
prefix rpki-vrp;
import "ietf-inet-types" {
prefix inet;
}
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typedef asn {
type string {
pattern 'AS(0|[1-9][0-9]{0,8}|[1-3][0-9]{1,9}|4([0-1][0-9]{8}|2([0-8][0-9]{7}|9([0-3][0-9]{6}|4([0-8][0-9]{5}|9([0-5][0-9]{4}|6([0-6][0-9]{3}|7([0-1][0-9]{2}|2([0-8][0-9]|9[0-5])))))))))';
}
description
"The Autonomous System Number";
}
typedef ta {
type enumeration {
enum apic;
enum arin;
enum ripe;
enum lacnic;
enum afrinic;
}
}
typedef ip-mask {
type union {
type ipv4-mask;
type ipv6-mask;
}
}
typedef ipv4-mask {
type uint8 {
range "0 .. 32";
}
}
typedef ipv6-mask {
type uint8 {
range "0 .. 128";
}
}
container roas {
config true;
list roas {
key "prefix asn";
leaf asn {
type asn;
mandatory true;
}
leaf prefix {
type inet:ip-prefix;
mandatory true;
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}
leaf maxLength {
type ip-mask;
mandatory true;
}
leaf ta {
type ta;
mandatory true;
}
must "number(substring-after(prefix,'/')) >= number(maxLength)" {
error-message "Max prefix Length is larger then prefix";
}
}
}
}
<CODE ENDS>
4. Security Considerations
A few words about not spooking parsers would fit here.
5. IANA Considerations
None.
6. Acknowledgments
The authors would like to thank Yannis Gonianakis and Louis
Poinsignon for their contributions to the data model described in
this document. The authors are grateful for feedback from Kooistra
and David Monosov.
7. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
DOI 10.17487/RFC6020, October 2010,
<https://www.rfc-editor.org/info/rfc6020>.
[RFC6480] Lepinski, M. and S. Kent, "An Infrastructure to Support
Secure Internet Routing", RFC 6480, DOI 10.17487/RFC6480,
February 2012, <https://www.rfc-editor.org/info/rfc6480>.
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[RFC6811] Mohapatra, P., Scudder, J., Ward, D., Bush, R., and R.
Austein, "BGP Prefix Origin Validation", RFC 6811,
DOI 10.17487/RFC6811, January 2013,
<https://www.rfc-editor.org/info/rfc6811>.
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/info/rfc8174>.
Author's Address
Job Snijders
NTT
Theodorus Majofskistraat 100
Amsterdam 1065 SZ
The Netherlands
Email: job@ntt.net
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