module yumaworks-system {

    yang-version 1;

    namespace
      "http://yumaworks.com/ns/yumaworks-system";

    prefix ysys;

    import ietf-netconf {
      prefix nc;
    }
    import ietf-netconf-acm {
      prefix nacm;
    }
    import ietf-netconf-monitoring {
      prefix ncm;
    }
    import ietf-yang-types {
      prefix yang;
    }
    import yuma-app-common {
      prefix yumaapp;
    }
    import yuma-ncx {
      prefix ncx;
    }
    import yuma-types {
      prefix nt;
    }
    import yumaworks-app-common {
      prefix ywapp;
    }
    import yumaworks-restconf {
      prefix rc;
    }
    import yumaworks-types {
      prefix ywt;
    }

    organization "YumaWorks, Inc.";

    contact
      "Support <support at yumaworks.com>";

    description
      "Common system operations for the netconfd-pro server.

     Copyright (c) 2013 - 2022 YumaWorks, Inc. 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 BSD 3-Clause License
     http://opensource.org/licenses/BSD-3-Clause";

    revision "2022-03-08" {
      description
        "Add get-server-version operation";
    }

    revision "2022-01-27" {
      description
        "Deprecate <conformance> and <module-type> leafs.";
    }

    revision "2021-08-24" {
      description
        "Add <get-ha-status> operation.";
    }

    revision "2021-05-29" {
      description
        "Add <refresh-backup-dir> operation.";
    }

    revision "2020-10-30" {
      description
        "Add log-stream parameter to the set-log-level operation";
    }

    revision "2020-03-06" {
      description
        "Change backup file name to use NcxFileName type.";
    }

    revision "2019-01-22" {
      description
        "Move <replay-config> to yumaworks-internal module.";
    }

    revision "2018-04-24" {
      description
        "Add module-tag parameter to NACM.";
    }

    revision "2018-04-14" {
      description
        "Add module-tag parameter to get and get-config.
           Add get-module-tags RPC operation.
           Add copy of set-log-level RPC operation from yuma-system.";
    }

    revision "2017-12-22" {
      description
        "Copy load rpc into this module so yuma-system
           can be removed.";
    }

    revision "2017-10-06" {
      description
        "Add save-config parameter to the load and
           load-bundle operations.
           Add delete-config parameter to the unload and
           unload-bundle operations.";
    }

    revision "2016-08-24" {
      description
        "Add unload-bundle operation.";
    }

    revision "2016-04-27" {
      description
        "Add deviation parameter to load-bundle input params.";
    }

    revision "2015-09-26" {
      description
        "Add depth parameter to get, get-config, and
           copy-config operations.";
    }

    revision "2014-10-16" {
      description
        "Add with-owners parameter to get, get-config, and
           copy-config operations.";
    }

    revision "2014-05-27" {
      description
        "Add overwrite parameter to backup operation.";
    }

    revision "2014-01-09" {
      description
        "Add load-bundle operation.";
    }

    revision "2013-11-13" {
      description
        "Add replay-config internal operation.
           Add module-type leaf to netconf-state schema list";
    }

    revision "2013-09-19" {
      description
        "Add comment parameter to commit operation.";
    }

    revision "2013-08-30" {
      description "Add unload operation.";
    }

    revision "2013-07-16" {
      description
        "Add cancel-subscription operation.";
    }

    revision "2013-01-06" {
      description "Initial version.";
    }


    augment /ncm:netconf-state {
      container backup-files {
        config false;
        description
          "Reports the backup files currently available
           on the server. Only present if backup commands
           in this module are supported by the server";
        list backup-file {
          key "name";
          leaf name {
            type ywt:NcxFileName;
            description
              "File name for the backup.";
          }

          leaf backup-time {
            type yang:date-and-time;
            description
              "Date and time the backup file was created.";
          }
        }  // list backup-file
      }  // container backup-files
    }

    augment /ncm:netconf-state/ncm:schemas/ncm:schema {
      status deprecated;
      description
        "Add extra information to schema list,
         This has been replaced by the ietf-yang-library
         module. Use that module instead of the schema list.";
      leaf conformance {
        type boolean;
        config false;
        status deprecated;
        description
          "Indicates whether the server is claiming conformance
           to the module represented by this schema or not.
           If 'true', the server implements the module
           represented by the indicated schema,
           according to the YANG module capability URI.
           If 'false', the server just imports definitions
           from the module represented by the indicated schema.";
      }

      leaf module-type {
        type enumeration {
          enum "module" {
            value 0;
            description
              "Schema represents a YANG module";
          }
          enum "submodule" {
            value 1;
            description
              "Schema represents a YANG submodule";
          }
        }
        config false;
        status deprecated;
        description
          "Indicates the type of module for this entry";
      }
    }

    rpc backup {
      nacm:default-deny-all;
      description
        "Backup the current running configuration to a file
         on the device.";
      input {
        ncx:default-parm "filename";
        leaf filename {
          type ywt:NcxFileName;
          mandatory true;
          description
            "File name for the backup. A simple identifier name
             is expected with no directory specifications or
             file extensions added. (e.g., 'backup1').";
        }

        leaf overwrite {
          type boolean;
          default 'false';
          description
            "If 'true' then allow an existing backup with the same
            'filename' value to be overwritten. If 'false' then return
            an error if the file already exists.";
        }
      }
    }  // rpc backup

    rpc delete-backup {
      nacm:default-deny-all;
      description
        "Delete the specified backup file on the device.";
      input {
        ncx:default-parm "filename";
        leaf filename {
          type ywt:NcxFileName;
          mandatory true;
          description "File name to delete";
        }
      }
    }  // rpc delete-backup

    rpc restore {
      nacm:default-deny-all;
      description
        "Restore a saved configuration on the device to the
         running configuration.";
      input {
        ncx:default-parm "filename";
        leaf filename {
          type ywt:NcxFileName;
          mandatory true;
          description
            "File name for the restore. A simple identifier name
             is expected with no directory specifications or
             file extensions added. (e.g., 'backup1').";
        }
      }
    }  // rpc restore

    rpc cancel-subscription {
      description
        "Cancel a notification subscription for the session,
         if this session has an active subscription.  If not,
         just return OK.";
    }  // rpc cancel-subscription

    rpc unload {
      nacm:default-deny-all;
      description
        "Unload a module from the server. Remove the associated
         server instrumentation library (SIL). Remove any data
         nodes in the system from the module. Remove the module
         from the server capabilities and NETCONF monitoring
         data. Remove the module namespace from the system.

         Note: this operation does not remove the --module parameter
         from the server configuration file if it exists.

         The following conditions must be true for the unload to be
         attempted by the server:

           * The module is allowed to be unloaded. It is data-model
             and vendor specific whether a module can be
             removed at run-time.

           * There are no dependencies on the module being removed.
             No modules that import this module are also loaded.

           * The module was loaded into the server, either via the
             <load> operation or the --module configuration parameter.

           * No datastores are currently locked.  The server will
             attempt to lock all datastores on behalf of the client
             for the entire unload operation.

           * The candidate datastore does not contain any edits
             that have not been committed.

           * No confirmed-commit operation is in progress.

         If all these conditions are met then the server will
         attempt to unload the specified module.  The unload
         operation can fail for various reasons:

           * The client does not have write privileges for
             all data being deleted. This includes any
             top-level data nodes and any nested augment
             nodes in other modules.

           * The deletion of one or more nodes would cause the
             running datastore to fail any YANG validation
             tests in RFC 6020, sec. 8.3.3.

           * Server resource errors occur
       ";
      input {
        ncx:default-parm "module";
        leaf module {
          type nt:NcxName;
          mandatory true;
          description
            "The name of the module to unload.";
        }

        uses delete-config-parm;
      }
    }  // rpc unload

    rpc load-bundle {
      nacm:default-deny-all;
      description
        "Load a SIL bundle into the server, if it is not already loaded.";
      input {
        ncx:default-parm "bundle";
        leaf bundle {
          type nt:NcxName;
          mandatory true;
          description
            "Name of the SIL bundle to load.";
        }

        uses yumaapp:DeviationParm;

        uses save-config-parm;
      }
    }  // rpc load-bundle

    rpc unload-bundle {
      nacm:default-deny-all;
      description
        "Unload a SIL bundle from the server, if it is loaded.";
      input {
        ncx:default-parm "bundle";
        leaf bundle {
          type nt:NcxName;
          mandatory true;
          description
            "Name of the SIL bundle to unload.";
        }

        uses delete-config-parm;
      }
    }  // rpc unload-bundle

    augment /nc:commit/nc:input {
      leaf comment {
        type string {
          length "0 .. 1024";
        }
        description
          "User provided comment to add to audit log for this
           commit operation.";
      }
    }

    grouping with-owners-parm {
      leaf with-owners {
        type empty;
        description
          "Include the 'ywx:owner' attribute in the response for nodes
           that have stored owner names.  The --save-owners CLI parameter
           for the server must be set to 'complex' or 'all' for any
           owner names to be saved.";
      }
    }  // grouping with-owners-parm

    augment /nc:get-config/nc:input {
      uses with-owners-parm;

      uses rc:depth-parameter;

      uses ywapp:ModuleTagParm;
    }

    augment /nc:get/nc:input {
      uses with-owners-parm;

      uses rc:depth-parameter;

      uses ywapp:ModuleTagParm;
    }

    augment /nc:copy-config/nc:input {
      uses with-owners-parm;

      uses rc:depth-parameter;
    }

    augment /nacm:nacm/nacm:rule-list/nacm:rule/nacm:rule-type {
      case module-tags {
        uses ywapp:ModuleTagParm;
      }  // case module-tags
    }

    grouping save-config-parm {
      leaf save-config {
        type boolean;
        default 'false';
        description
          "If 'true' then save the module or bundle load
             configuration in the --confdir directory, if the
             load or load-bundle operation is completed without
             errors.

             Ignored if the --no-config CLI parameter is used
             or the --confdir CLI parameter is not specified
             and no default configuration directory is found.

             A configuration file is created or replaced in this
             directory with the name <module-name>.conf.";
      }
    }  // grouping save-config-parm

    grouping delete-config-parm {
      leaf delete-config {
        type boolean;
        default 'false';
        description
          "If 'true' then delete the module or bundle load
             configuration in the --confdir directory, if the unload
             or unload-bundle operation is completed without errors.

             Ignored if the --no-config CLI parameter is used
             or the --confdir CLI parameter is not specified
             and no default configuration directory is found.

             A configuration file is deleted in this
             directory with the name <module-name>.conf.";
      }
    }  // grouping delete-config-parm

    rpc load {
      nacm:default-deny-all;
      description
        "Load a module into the server, if it is not already loaded.
         Returns the module revision date (or today's date if none),
         of the module that was loaded, or an error if not found
         or the module found had errors and was not loaded
         successfully.  If the module is already loaded, then the
         revision date will simply be returned.";
      input {
        ncx:default-parm "module";
        leaf module {
          type nt:NcxName;
          mandatory true;
          description
            "Name of the module to load.";
        }

        leaf revision {
          type nt:Date;
          description
            "Module revision to load.";
        }

        uses yumaapp:DeviationParm;

        uses save-config-parm;
      }

      output {
        leaf mod-revision {
          type nt:Date;
          description
            "Revision date of the module in use by the server.
             Will only be present if the module has a version";
        }
      }
    }  // rpc load

    rpc get-module-tags {
      description
        "Get the list of configured module-tags.
         The --module-tagmap parameter is used to configure
         a module-tag.";
      output {
        list module-tag {
          key "tag";
          leaf tag {
            type string;
            description
              "The module-tag value";
          }

          leaf-list module {
            type string;
            description
              "A module-name mapped to this module-tag";
          }
        }  // list module-tag
      }
    }  // rpc get-module-tags

    rpc set-log-level {
      nacm:default-deny-all;
      description
        "Sets the server log verbosity level.
             Copied from deprecated yuma-system.yang/";
      input {
        ncx:default-parm "log-level";
        leaf log-level {
          type nt:NcDebugType;
          mandatory true;
          description
            "The desired verbosity level for system logging
                  messages generated by the server.
                  The current value can be obtained by retrieving
                  the /system/sysLogLevel object.";
        }

        leaf log-stream {
          type enumeration {
            enum "main" {
              value 0;
              description
                "The main logging stream is used, associated
                       with the --log parameter file, or direct output
                       to STDOUT or STDERR, or the vendor-specific
                       output if the --log-vendor parameter is used.

                       The --log-level parameter value for the next
                       reboot is not affected by this operation.";
            }
            enum "audit" {
              value 1;
              description
                "The audit logging stream associated with
                         the --audit-log parameter, or the default audit
                         log, which is only created if --fileloc-fhs=true
                         is used.

                         The --audit-log-level parameter value for the next
                         reboot is not affected by this operation.

                         Audit logging is only done when the audit-log-level
                         is greater or equal to the current log-level.";
            }
            enum "syslog" {
              value 2;
              description
                "The syslog logging stream associated with
                         the --log-syslog parameter is used.

                         The --log-syslog-level parameter value for the next
                         reboot is not affected by this operation.";
            }
          }
          default 'main';
          description
            "The desired logging stream to use when changing
                  the log level.";
        }
      }
    }  // rpc set-log-level

    rpc refresh-backup-dir {
      nacm:default-deny-all;
      description
        "Refresh the /netconf-state/backup-files subtree.
          This operation allows the backup file directory contents to
          be altered at run-time outside the control of the server.
          The 'backup-file' list entries within the 'backup-files' container
          will be refreshed.";
    }  // rpc refresh-backup-dir

    rpc get-ha-status {
      nacm:default-deny-all;
      description
        "Get the YP-HA status information for this server.";
      output {
        container ha-status {
          uses ywapp:HaStatusParms;
        }  // container ha-status
      }
    }  // rpc get-ha-status

    rpc get-server-version {
      description
        "Get the server version string and build date.
          This information is provided in an RPC operation instead
          of the <operational> datadtore so it is available even if the
          datastores are not ready to use.";
      output {
        leaf version {
          type string;
          description
            "The version string returned by the ncx_get_version API";
        }

        leaf build-date {
          type string;
          description
            "The build-date string returned by the ncx_get_build_date API";
        }
      }
    }  // rpc get-server-version
  }  // module yumaworks-system