module ietf-netconf-list-pagination {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-netconf-list-pagination";
prefix ycoll;
import ietf-netconf {
prefix nc;
reference
"RFC 6241: Network Configuration Protocol (NETCONF)";
}
import ietf-netconf-with-defaults {
prefix ncwd;
reference
"RFC 6243: With-defaults Capability for NETCONF";
}
import ietf-yang-types {
prefix yang;
reference
"RFC 6991: Common YANG Data Types";
}
import ietf-datastores {
prefix ds;
reference
"RFC 8342: Network Management Datastore Architecture
(NMDA)";
}
import ietf-origin {
prefix or;
reference
"RFC 8342: Network Management Datastore Architecture
(NMDA)";
}
organization
"IETF NETCONF (Network Configuration) Working Group";
contact
"WG Web:
WG List:
Editor:
Editor:
Editor: ";
description
"This module define a new operation --
to support YANG based pagination.
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 (RFC 2119) (RFC 8174) when, and only when,
they appear in all capitals, as shown here.
Copyright (c) 2019 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Simplified BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC 8526; see
the RFC itself for full legal notices.";
revision 2020-10-30 {
description
"Initial revision.";
reference
"RFC XXXX: YANG Based Pagination.";
}
feature origin {
description
"Indicates that the server supports the 'origin' annotation.";
reference
"RFC 8342: Network Management Datastore Architecture (NMDA)";
}
feature with-defaults {
description
"NETCONF :with-defaults capability. If the server advertises
the :with-defaults capability for a session, then this
feature must also be enabled for that session. Otherwise,
this feature must not be enabled.";
reference
"RFC 6243: With-defaults Capability for NETCONF, Section 4; and
RFC 8526: NETCONF Extensions to Support the Network Management
Datastore Architecture, Section 3.1.1.2";
}
rpc get-pagable-list {
description
"Use enhanced filtering features to retrieve data from a
specific NMDA datastore. The content returned by get-data
must satisfy all filters, i.e., the filter criteria are
logically ANDed.
Any ancestor nodes (including list keys) of nodes selected by
the filters are included in the response.
The 'with-origin' parameter is only valid for an operational
datastore. If 'with-origin' is used with an invalid
datastore, then the server MUST return an element
with an value of 'invalid-value'.
The 'with-defaults' parameter only applies to the operational
datastore if the NETCONF :with-defaults and
:with-operational-defaults capabilities are both advertised.
If the 'with-defaults' parameter is present in a request for
which it is not supported, then the server MUST return an
element with an value of
'invalid-value'.";
input {
leaf datastore {
type ds:datastore-ref;
mandatory true;
description
"Datastore from which to retrieve data.
If the datastore is not supported by the server, then
the server MUST return an element with an
value of 'invalid-value'.";
}
choice filter-spec {
description
"The content filter specification for this request.";
anydata subtree-filter {
description
"This parameter identifies the portions of the
target datastore to retrieve.";
reference
"RFC 6241: Network Configuration Protocol (NETCONF),
Section 6";
}
leaf xpath-filter {
if-feature "nc:xpath";
type yang:xpath1.0;
description
"This parameter contains an XPath expression identifying
the portions of the target datastore to retrieve.
If the expression returns a node-set, all nodes in the
node-set are selected by the filter. Otherwise, if the
expression does not return a node-set, then the
operation fails.
The expression is evaluated in the following XPath
context:
o The set of namespace declarations are those in
scope on the 'xpath-filter' leaf element.
o The set of variable bindings is empty.
o The function library is the core function library,
and the XPath functions are defined in Section 10
of RFC 7950.
o The context node is the root node of the target
datastore.";
}
}
leaf config-filter {
type boolean;
description
"Filter for nodes with the given value for their 'config'
property. When this leaf is set to 'true', only 'config
true' nodes are selected, and when set to 'false', only
'config false' nodes are selected. If this leaf is not
present, no nodes are filtered.";
}
choice origin-filters {
when 'derived-from-or-self(datastore, "ds:operational")';
if-feature "origin";
description
"Filters configuration nodes based on the 'origin'
annotation. Configuration nodes that do not have an
'origin' annotation are treated as if they have the
'origin' annotation 'or:unknown'.
System state nodes are not affected by origin-filters and
thus not filtered. Note that system state nodes can be
filtered with the 'config-filter' leaf.";
leaf-list origin-filter {
type or:origin-ref;
description
"Filter based on the 'origin' annotation. A
configuration node matches the filter if its 'origin'
annotation is derived from or equal to any of the given
filter values.";
}
leaf-list negated-origin-filter {
type or:origin-ref;
description
"Filter based on the 'origin' annotation. A
configuration node matches the filter if its 'origin'
annotation is neither derived from nor equal to any of
the given filter values.";
}
}
leaf max-depth {
type union {
type uint16 {
range "1..65535";
}
type enumeration {
enum unbounded {
description
"All descendant nodes are included.";
}
}
}
default "unbounded";
description
"For each node selected by the filters, this parameter
selects how many conceptual subtree levels should be
returned in the reply. If the depth is 1, the reply
includes just the selected nodes but no children. If the
depth is 'unbounded', all descendant nodes are included.";
}
leaf with-origin {
when 'derived-from-or-self(../datastore, "ds:operational")';
if-feature "origin";
type empty;
description
"If this parameter is present, the server will return
the 'origin' annotation for the nodes that have one.";
}
uses ncwd:with-defaults-parameters {
if-feature "with-defaults";
}
leaf list-target {
description
"Identifies the list object that is being retrieved.
This must be a path expression used to represent
a list data node or leaf-list data node. ";
mandatory true;
type string;
}
leaf limit {
type union {
type uint32;
type string {
pattern 'unbounded';
}
}
default "unbounded";
description
"The maximum number of list entries to return. The
value of the 'count' parameter is either an integer
greater than or equal to 1, or the string 'unbounded'.
The string 'unbounded' is the default value.";
}
leaf offset {
type union {
type uint32;
type string {
pattern 'none';
}
}
default "none";
description
"The first list item to return.
the 'skip' parameter is either an integer greater than
or equal to 1, or the string 'unbounded'. The string
'unbounded' is the default value.";
}
leaf direction {
type enumeration {
enum forward;
enum reverse;
}
default "forward";
description
"Direction relative to the 'sort' order through list
or leaf-list. It can be forward direction or reverse
direction.";
}
leaf sort {
type union {
type string {
length "1..max" {
description
"The name of a descendent node to sort on. For
'Config false' lists and leaf-lists, the node SHOULD
have the 'TBD' extension indicating that it has been
indexed, enabling efficient sorts.";
}
}
type enumeration {
enum default {
description
"Indicates that the 'default' order is assumed. For
'ordered-by user' lists and leaf-lists, the default order
is the user-configured order. For 'ordered-by system'
lists and leaf-lists, the default order is specified by the
system.";
}
}
}
default "default";
description
"Indicates how the entries in a list are to be sorted.";
}
leaf where {
type yang:xpath1.0;
description
"The boolean filter to select data instances to return from
the list or leaf-list target. The Xpath expression MAY be
constrained either server-wide, by datastore, by 'config'
status, or per list or leaf-list. Details regarding how
constraints are communicated are TBD. This parameter
is optional; no filtering is applied when it is not
specified.";
}
}
output {
anyxml pageable-list {
description
"Return the list entries that were requested and matched
the filter criteria (if any). An empty data container
indicates that the request did not produce any results.";
}
}
}
}