module ietf-restconf { namespace "urn:ietf:params:xml:ns:yang:ietf-restconf"; prefix "restconf"; import ietf-yang-types { prefix yang; revision-date 2013-07-15; } import ietf-inet-types { prefix inet; } organization "IETF NETCONF (Network Configuration) Working Group"; contact "Editor: Andy Bierman Editor: Martin Bjorklund Editor: Kent Watsen Editor: Rex Fernando "; description "This module contains conceptual YANG specifications for the YANG Patch and error content that is used in RESTCONF protocol messages. A conceptual container representing the RESTCONF API nodes (media type application/yang.api). Note that the YANG definitions within this module do not represent configuration data of any kind. The YANG grouping statements provide a normative syntax for XML and JSON message encoding purposes. Copyright (c) 2013 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 (http://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices."; // RFC Ed.: replace XXXX with actual RFC number and remove this // note. // RFC Ed.: remove this note // Note: extracted from draft-bierman-netconf-restconf-02.txt // RFC Ed.: update the date below with the date of RFC publication // and remove this note. revision 2013-10-19 { description "Initial revision."; reference "RFC XXXX: RESTCONF Protocol."; } typedef data-resource-identifier { type string { length "1 .. max"; } description "Contains a Data Resource Identifier formatted string to identify a specific data node. The data node that uses this data type SHOULD define the document root for data resource identifiers. The default document root is the target datastore conceptual root node. Data resource identifiers are defined relative to this document root."; reference "RFC XXXX: [sec. 5.3.1.1 ABNF For Data Resource Identifiers]"; } // this typedef is TBD; not currently used typedef datastore-identifier { type union { type enumeration { enum candidate { description "Identifies the NETCONF shared candidate datastore."; reference "RFC 6241, section 8.3"; } enum running { description "Identifies the NETCONF running datastore."; reference "RFC 6241, section 5.1"; } enum startup { description "Identifies the NETCONF startup datastore."; reference "RFC 6241, section 8.7"; } } type string; } description "Contains a string to identify a specific datastore. The enumerated datastore identifier values are reserved for standard datastore names."; } typedef revision-identifier { type string { pattern '\d{4}-\d{2}-\d{2}'; } description "Represents a specific date in YYYY-MM-DD format. TBD: make pattern more precise to exclude leading zeros."; } grouping yang-patch { description "A grouping that contains a YANG container representing the syntax and semantics of a YANG Patch edit request message."; container yang-patch { description "Represents a conceptual sequence of datastore edits, called a patch. Each patch is given a client-assigned patch identifier. Each edit MUST be applied in ascending order, and all edits MUST be applied. If any errors occur, then the target datastore MUST NOT be changed by the patch operation. A patch MUST be validated by the server to be a well-formed message before any of the patch edits are validated or attempted. YANG datastore validation (defined in RFC 6020, section 8.3.3) is performed after all edits have been individually validated. It is possible for a datastore constraint violation to occur due to any node in the datastore, including nodes not included in the edit list. Any validation errors MUST be reported in the reply message."; reference "RFC 6020, section 8.3."; leaf patch-id { type string; description "An arbitrary string provided by the client to identify the entire patch. This value SHOULD be present in any audit logging records generated by the server for the patch. Error messages returned by the server pertaining to this patch will be identified by this patch-id value."; } leaf comment { type string { length "0 .. 1024"; } description "An arbitrary string provided by the client to describe the entire patch. This value SHOULD be present in any audit logging records generated by the server for the patch."; } list edit { key edit-id; ordered-by user; description "Represents one edit within the YANG Patch request message."; leaf edit-id { type string; description "Arbitrary string index for the edit. Error messages returned by the server pertaining to a specific edit will be identified by this value."; } leaf operation { type enumeration { enum create { description "The target data node is created using the supplied value, only if it does not already exist."; } enum delete { description "Delete the target node, only if the data resource currently exists, otherwise return an error."; } enum insert { description "Insert the supplied value into a user-ordered list or leaf-list entry. The target node must represent a new data resource."; } enum merge { description "The supplied value is merged with the target data node."; } enum move { description "Move the target node. Reorder a user-ordered list or leaf-list. The target node must represent an existing data resource."; } enum replace { description "The supplied value is used to replace the target data node."; } enum remove { description "Delete the target node if it currently exists."; } } mandatory true; description "The datastore operation requested for the associated edit entry"; } leaf target { type data-resource-identifier; mandatory true; description "Identifies the target data resource for the edit operation."; } leaf point { when "(../operation = 'insert' or " + "../operation = 'move') and " + "(../where = 'before' or ../where = 'after')" { description "Point leaf only applies for insert or move operations, before or after an existing entry."; } type data-resource-identifier; description "The absolute URL path for the data node that is being used as the insertion point or move point for the target of this edit entry."; } leaf where { when "../operation = 'insert' or ../operation = 'move'" { description "Where leaf only applies for insert or move operations."; } type enumeration { enum before { description "Insert or move a data node before the data resource identified by the 'point' parameter."; } enum after { description "Insert or move a data node after the data resource identified by the 'point' parameter."; } enum first { description "Insert or move a data node so it becomes ordered as the first entry."; } enum last { description "Insert or move a data node so it becomes ordered as the last entry."; } } default last; description "Identifies where a data resource will be inserted or moved. YANG only allows these operations for list and leaf-list data nodes that are ordered-by user."; } anyxml value { when "(../operation = 'create' or " + "../operation = 'merge' " + "or ../operation = 'replace' or " + "../operation = 'insert')" { description "Value node only used for create, merge, replace, and insert operations"; } description "Value used for this edit operation."; } } } } // grouping yang-patch grouping yang-patch-status { description "A grouping that contains a YANG container representing the syntax and semantics of YANG Patch status response message."; container yang-patch-status { description "A container representing the response message sent by the server after a YANG Patch edit request message has been processed."; leaf patch-id { type string; description "The patch-id value used in the request"; } choice global-status { description "Report global errors or complete success. If there is no case selected then errors are reported in the edit-status container."; case global-errors { uses errors; description "This container will be present if global errors unrelated to a specific edit occurred."; } leaf ok { type empty; description "This leaf will be present if the request succeeded and there are no errors reported in the edit-status container."; } } container edit-status { description "This container will be present if there are edit-specific status responses to report."; list edit { key edit-id; description "Represents a list of status responses, corresponding to edits in the YANG Patch request message. If an edit entry was skipped or not reached by the server, then this list will not contain a corresponding entry for that edit."; leaf edit-id { type string; description "Response status is for the edit list entry with this edit-id value."; } choice edit-status-choice { description "A choice between different types of status responses for each edit entry."; leaf ok { type empty; description "This edit entry was invoked without any errors detected by the server associated with this edit."; } leaf location { type inet:uri; description "Contains the Location header value that would be returned if this edit causes a new resource to be created. If the edit identified by the same edit-id value was successfully invoked and a new resource was created, then this field will be returned instead of 'ok'."; } case errors { uses errors; description "The server detected errors associated with the edit identified by the same edit-id value."; } } } } } } // grouping yang-patch-status grouping errors { description "A grouping that contains a YANG container representing the syntax and semantics of a YANG Patch errors report within a response message."; container errors { config false; // needed so list error does not need a key description "Represents an error report returned by the server if a request results in an error."; list error { description "An entry containing information about one specific error that occurred while processing a RESTCONF request."; reference "RFC 6241, Section 4.3"; leaf error-type { type enumeration { enum transport { description "The transport layer"; } enum rpc { description "The rpc or notification layer"; } enum protocol { description "The protocol operation layer"; } enum application { description "The server application layer"; } } mandatory true; description "The protocol layer where the error occurred."; } leaf error-tag { type string; mandatory true; description "The enumerated error tag."; } leaf error-app-tag { type string; description "The application-specific error tag."; } leaf error-path { type data-resource-identifier; description "The target data resource identifier associated with the error, if any."; } leaf error-message { type string; description "A message describing the error."; } container error-info { description "A container allowing additional information to be included in the error report."; // arbitrary anyxml content here } } } } // grouping errors grouping restconf { description "A grouping that contains a YANG container representing the syntax and semantics of the RESTCONF API resource."; container restconf { description "Conceptual container representing the application/yang.api resource type."; container config { description "Container representing the application/yang.datastore resource type. Represents the conceptual root of the unified configuration datastore containing YANG data nodes. The child nodes of this container are configuration data resources (application/yang.data) defined as top-level YANG data nodes from the modules advertised by the server in /restconf/modules."; } container operational { description "Container representing the application/yang.datastore resource type. Represents the conceptual root of the operational data supported by the server. The child nodes of this container are operational data resources (application/yang.data) defined as top-level YANG data nodes from the modules advertised by the server in /restconf/modules."; } container modules { description "Contains a list of module description entries. These modules are currently loaded into the server."; list module { key "name revision"; description "Each entry represents one module currently supported by the server."; leaf name { type yang:yang-identifier; description "The YANG module name."; } leaf revision { type union { type revision-identifier; type string { length 0; } } description "The YANG module revision date. An empty string is used if no revision statement is present in the YANG module."; } leaf namespace { type inet:uri; mandatory true; description "The XML namespace identifier for this module."; } leaf-list feature { type yang:yang-identifier; description "List of YANG feature names from this module that are supported by the server."; } leaf-list deviation { type yang:yang-identifier; description "List of YANG deviation module names used by this server to modify the conformance of the module associated with this entry."; } } } container operations { description "Container for all operation resources (application/yang.operation), Each resource is represented as an empty leaf with the name of the RPC operation from the YANG rpc statement. E.g.; POST /restconf/operations/show-log-errors leaf show-log-errors { type empty; } "; } container streams { description "Container representing the notification event streams supported by the server."; reference "RFC 5277, Section 3.4, element."; list stream { key name; description "Each entry describes an event stream supported by the server."; leaf name { type string; description "The stream name"; reference "RFC 5277, Section 3.4, element."; } leaf description { type string; description "Description of stream content"; reference "RFC 5277, Section 3.4, element."; } leaf replay-support { type boolean; description "Indicates if replay buffer supported for this stream"; reference "RFC 5277, Section 3.4, element."; } leaf replay-log-creation-time { type yang:date-and-time; description "Indicates the time the replay log for this stream was created."; reference "RFC 5277, Section 3.4, element."; } leaf events { type empty; description "Represents the entry point for establishing notification delivery via server sent events."; } } } leaf version { type enumeration { enum "1.0" { description "Version 1.0 of the RESTCONF protocol."; } } config false; description "Contains the RESTCONF protocol version."; } } } // grouping restconf grouping notification { description "Contains the notification message wrapper definition."; container notification { description "RESTCONF notification message wrapper."; leaf event-time { type yang:date-and-time; mandatory true; description "The time the event was generated by the event source."; reference "RFC 5277, section 4, element."; } /* The YANG-specific notification container is encoded * after the 'event-time' element. The format * corresponds to the notificationContent element * in RFC 5277, section 4. For example: * * module example-one { * ... * notification event1 { ... } * * } * * Encoded as element 'event1' in the namespace * for module 'example-one'. */ } } // grouping notification }