1 module ietf-inet-types {
3 namespace "urn:ietf:params:xml:ns:yang:ietf-inet-types";
7 "IETF NETMOD (NETCONF Data Modeling Language) Working Group";
10 "WG Web: <http://tools.ietf.org/wg/netmod/>
11 WG List: <mailto:netmod@ietf.org>
12 WG Chair: David Kessens
13 <mailto:david.kessens@nsn.com>
14 WG Chair: Juergen Schoenwaelder
15 <mailto:j.schoenwaelder@jacobs-university.de>
16 Editor: Juergen Schoenwaelder
17 <mailto:j.schoenwaelder@jacobs-university.de>";
20 "This module contains a collection of generally useful derived
21 YANG data types for Internet addresses and related things.
22 Copyright (c) 2013 IETF Trust and the persons identified as
23 authors of the code. All rights reserved.
24 Redistribution and use in source and binary forms, with or
25 without modification, is permitted pursuant to, and subject
26 to the license terms contained in, the Simplified BSD License
27 set forth in Section 4.c of the IETF Trust's Legal Provisions
28 Relating to IETF Documents
29 (http://trustee.ietf.org/license-info).
30 This version of this YANG module is part of RFC 6991; see
31 the RFC itself for full legal notices.";
35 "This revision adds the following new data types:
37 - ipv4-address-no-zone
38 - ipv6-address-no-zone";
40 "RFC 6991: Common YANG Data Types";
47 "RFC 6021: Common YANG Data Types";
50 /*** collection of types related to protocol fields ***/
57 "An unknown or unspecified version of the Internet
63 "The IPv4 protocol as defined in RFC 791.";
68 "The IPv6 protocol as defined in RFC 2460.";
72 "This value represents the version of the IP protocol.
73 In the value set and its semantics, this type is equivalent
74 to the InetVersion textual convention of the SMIv2.";
76 "RFC 791: Internet Protocol
77 RFC 2460: Internet Protocol, Version 6 (IPv6) Specification
78 RFC 4001: Textual Conventions for Internet Network Addresses";
86 "The dscp type represents a Differentiated Services Code Point
87 that may be used for marking packets in a traffic stream.
88 In the value set and its semantics, this type is equivalent
89 to the Dscp textual convention of the SMIv2.";
91 "RFC 3289: Management Information Base for the Differentiated
93 RFC 2474: Definition of the Differentiated Services Field
94 (DS Field) in the IPv4 and IPv6 Headers
95 RFC 2780: IANA Allocation Guidelines For Values In
96 the Internet Protocol and Related Headers";
99 typedef ipv6-flow-label {
104 "The ipv6-flow-label type represents the flow identifier or Flow
105 Label in an IPv6 packet header that may be used to
106 discriminate traffic flows.
107 In the value set and its semantics, this type is equivalent
108 to the IPv6FlowLabel textual convention of the SMIv2.";
110 "RFC 3595: Textual Conventions for IPv6 Flow Label
111 RFC 2460: Internet Protocol, Version 6 (IPv6) Specification";
114 typedef port-number {
119 "The port-number type represents a 16-bit port number of an
120 Internet transport-layer protocol such as UDP, TCP, DCCP, or
121 SCTP. Port numbers are assigned by IANA. A current list of
122 all assignments is available from <http://www.iana.org/>.
123 Note that the port number value zero is reserved by IANA. In
124 situations where the value zero does not make sense, it can
125 be excluded by subtyping the port-number type.
126 In the value set and its semantics, this type is equivalent
127 to the InetPortNumber textual convention of the SMIv2.";
129 "RFC 768: User Datagram Protocol
130 RFC 793: Transmission Control Protocol
131 RFC 4960: Stream Control Transmission Protocol
132 RFC 4340: Datagram Congestion Control Protocol (DCCP)
133 RFC 4001: Textual Conventions for Internet Network Addresses";
136 /*** collection of types related to autonomous systems ***/
141 "The as-number type represents autonomous system numbers
142 which identify an Autonomous System (AS). An AS is a set
143 of routers under a single technical administration, using
144 an interior gateway protocol and common metrics to route
145 packets within the AS, and using an exterior gateway
146 protocol to route packets to other ASes. IANA maintains
147 the AS number space and has delegated large parts to the
149 Autonomous system numbers were originally limited to 16
150 bits. BGP extensions have enlarged the autonomous system
151 number space to 32 bits. This type therefore uses an uint32
152 base type without a range restriction in order to support
153 a larger autonomous system number space.
154 In the value set and its semantics, this type is equivalent
155 to the InetAutonomousSystemNumber textual convention of
158 "RFC 1930: Guidelines for creation, selection, and registration
159 of an Autonomous System (AS)
160 RFC 4271: A Border Gateway Protocol 4 (BGP-4)
161 RFC 4001: Textual Conventions for Internet Network Addresses
162 RFC 6793: BGP Support for Four-Octet Autonomous System (AS)
166 /*** collection of types related to IP addresses and hostnames ***/
170 type inet:ipv4-address;
171 type inet:ipv6-address;
174 "The ip-address type represents an IP address and is IP
175 version neutral. The format of the textual representation
176 implies the IP version. This type supports scoped addresses
177 by allowing zone identifiers in the address format.";
179 "RFC 4007: IPv6 Scoped Address Architecture";
182 typedef ipv4-address {
185 '(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}'
186 + '([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])'
187 + '(%[\p{N}\p{L}]+)?';
190 "The ipv4-address type represents an IPv4 address in
191 dotted-quad notation. The IPv4 address may include a zone
192 index, separated by a % sign.
193 The zone index is used to disambiguate identical address
194 values. For link-local addresses, the zone index will
195 typically be the interface index number or the name of an
196 interface. If the zone index is not present, the default
197 zone of the device will be used.
198 The canonical format for the zone index is the numerical
202 typedef ipv6-address {
204 pattern '((:|[0-9a-fA-F]{0,4}):)([0-9a-fA-F]{0,4}:){0,5}'
205 + '((([0-9a-fA-F]{0,4}:)?(:|[0-9a-fA-F]{0,4}))|'
206 + '(((25[0-5]|2[0-4][0-9]|[01]?[0-9]?[0-9])\.){3}'
207 + '(25[0-5]|2[0-4][0-9]|[01]?[0-9]?[0-9])))'
208 + '(%[\p{N}\p{L}]+)?';
209 pattern '(([^:]+:){6}(([^:]+:[^:]+)|(.*\..*)))|'
210 + '((([^:]+:)*[^:]+)?::(([^:]+:)*[^:]+)?)'
214 "The ipv6-address type represents an IPv6 address in full,
215 mixed, shortened, and shortened-mixed notation. The IPv6
216 address may include a zone index, separated by a % sign.
217 The zone index is used to disambiguate identical address
218 values. For link-local addresses, the zone index will
219 typically be the interface index number or the name of an
220 interface. If the zone index is not present, the default
221 zone of the device will be used.
222 The canonical format of IPv6 addresses uses the textual
223 representation defined in Section 4 of RFC 5952. The
224 canonical format for the zone index is the numerical
225 format as described in Section 11.2 of RFC 4007.";
227 "RFC 4291: IP Version 6 Addressing Architecture
228 RFC 4007: IPv6 Scoped Address Architecture
229 RFC 5952: A Recommendation for IPv6 Address Text
233 typedef ip-address-no-zone {
235 type inet:ipv4-address-no-zone;
236 type inet:ipv6-address-no-zone;
239 "The ip-address-no-zone type represents an IP address and is
240 IP version neutral. The format of the textual representation
241 implies the IP version. This type does not support scoped
242 addresses since it does not allow zone identifiers in the
245 "RFC 4007: IPv6 Scoped Address Architecture";
248 typedef ipv4-address-no-zone {
249 type inet:ipv4-address {
253 "An IPv4 address without a zone index. This type, derived from
254 ipv4-address, may be used in situations where the zone is
255 known from the context and hence no zone index is needed.";
258 typedef ipv6-address-no-zone {
259 type inet:ipv6-address {
260 pattern '[0-9a-fA-F:\.]*';
263 "An IPv6 address without a zone index. This type, derived from
264 ipv6-address, may be used in situations where the zone is
265 known from the context and hence no zone index is needed.";
267 "RFC 4291: IP Version 6 Addressing Architecture
268 RFC 4007: IPv6 Scoped Address Architecture
269 RFC 5952: A Recommendation for IPv6 Address Text
275 type inet:ipv4-prefix;
276 type inet:ipv6-prefix;
279 "The ip-prefix type represents an IP prefix and is IP
280 version neutral. The format of the textual representations
281 implies the IP version.";
284 typedef ipv4-prefix {
287 '(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}'
288 + '([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])'
289 + '/(([0-9])|([1-2][0-9])|(3[0-2]))';
292 "The ipv4-prefix type represents an IPv4 address prefix.
293 The prefix length is given by the number following the
294 slash character and must be less than or equal to 32.
295 A prefix length value of n corresponds to an IP address
296 mask that has n contiguous 1-bits from the most
297 significant bit (MSB) and all other bits set to 0.
298 The canonical format of an IPv4 prefix has all bits of
299 the IPv4 address set to zero that are not part of the
303 typedef ipv6-prefix {
305 pattern '((:|[0-9a-fA-F]{0,4}):)([0-9a-fA-F]{0,4}:){0,5}'
306 + '((([0-9a-fA-F]{0,4}:)?(:|[0-9a-fA-F]{0,4}))|'
307 + '(((25[0-5]|2[0-4][0-9]|[01]?[0-9]?[0-9])\.){3}'
308 + '(25[0-5]|2[0-4][0-9]|[01]?[0-9]?[0-9])))'
309 + '(/(([0-9])|([0-9]{2})|(1[0-1][0-9])|(12[0-8])))';
310 pattern '(([^:]+:){6}(([^:]+:[^:]+)|(.*\..*)))|'
311 + '((([^:]+:)*[^:]+)?::(([^:]+:)*[^:]+)?)'
317 "The ipv6-prefix type represents an IPv6 address prefix.
318 The prefix length is given by the number following the
319 slash character and must be less than or equal to 128.
320 A prefix length value of n corresponds to an IP address
321 mask that has n contiguous 1-bits from the most
322 significant bit (MSB) and all other bits set to 0.
323 The IPv6 address should have all bits that do not belong
324 to the prefix set to zero.
325 The canonical format of an IPv6 prefix has all bits of
326 the IPv6 address set to zero that are not part of the
327 IPv6 prefix. Furthermore, the IPv6 address is represented
328 as defined in Section 4 of RFC 5952.";
330 "RFC 5952: A Recommendation for IPv6 Address Text
334 /*** collection of domain name and URI types ***/
336 typedef domain-name {
339 '((([a-zA-Z0-9_]([a-zA-Z0-9\-_]){0,61})?[a-zA-Z0-9]\.)*'
340 + '([a-zA-Z0-9_]([a-zA-Z0-9\-_]){0,61})?[a-zA-Z0-9]\.?)'
345 "The domain-name type represents a DNS domain name. The
346 name SHOULD be fully qualified whenever possible.
347 Internet domain names are only loosely specified. Section
348 3.5 of RFC 1034 recommends a syntax (modified in Section
349 2.1 of RFC 1123). The pattern above is intended to allow
350 for current practice in domain name use, and some possible
351 future expansion. It is designed to hold various types of
352 domain names, including names used for A or AAAA records
353 (host names) and other records, such as SRV records. Note
354 that Internet host names have a stricter syntax (described
355 in RFC 952) than the DNS recommendations in RFCs 1034 and
356 1123, and that systems that want to store host names in
357 schema nodes using the domain-name type are recommended to
358 adhere to this stricter standard to ensure interoperability.
359 The encoding of DNS names in the DNS protocol is limited
360 to 255 characters. Since the encoding consists of labels
361 prefixed by a length bytes and there is a trailing NULL
362 byte, only 253 characters can appear in the textual dotted
364 The description clause of schema nodes using the domain-name
365 type MUST describe when and how these names are resolved to
366 IP addresses. Note that the resolution of a domain-name value
367 may require to query multiple DNS records (e.g., A for IPv4
368 and AAAA for IPv6). The order of the resolution process and
369 which DNS record takes precedence can either be defined
370 explicitly or may depend on the configuration of the
372 Domain-name values use the US-ASCII encoding. Their canonical
373 format uses lowercase US-ASCII characters. Internationalized
374 domain names MUST be A-labels as per RFC 5890.";
376 "RFC 952: DoD Internet Host Table Specification
377 RFC 1034: Domain Names - Concepts and Facilities
378 RFC 1123: Requirements for Internet Hosts -- Application
380 RFC 2782: A DNS RR for specifying the location of services
382 RFC 5890: Internationalized Domain Names in Applications
383 (IDNA): Definitions and Document Framework";
388 type inet:ip-address;
389 type inet:domain-name;
392 "The host type represents either an IP address or a DNS
399 "The uri type represents a Uniform Resource Identifier
400 (URI) as defined by STD 66.
401 Objects using the uri type MUST be in US-ASCII encoding,
402 and MUST be normalized as described by RFC 3986 Sections
403 6.2.1, 6.2.2.1, and 6.2.2.2. All unnecessary
404 percent-encoding is removed, and all case-insensitive
405 characters are set to lowercase except for hexadecimal
406 digits, which are normalized to uppercase as described in
408 The purpose of this normalization is to help provide
409 unique URIs. Note that this normalization is not
410 sufficient to provide uniqueness. Two URIs that are
411 textually distinct after this normalization may still be
413 Objects using the uri type may restrict the schemes that
414 they permit. For example, 'data:' and 'urn:' schemes
415 might not be appropriate.
416 A zero-length URI is not a valid URI. This can be used to
417 express 'URI absent' where required.
418 In the value set and its semantics, this type is equivalent
419 to the Uri SMIv2 textual convention defined in RFC 5017.";
421 "RFC 3986: Uniform Resource Identifier (URI): Generic Syntax
422 RFC 3305: Report from the Joint W3C/IETF URI Planning Interest
423 Group: Uniform Resource Identifiers (URIs), URLs,
424 and Uniform Resource Names (URNs): Clarifications
426 RFC 5017: MIB Textual Conventions for Uniform Resource