module netconfd {

    namespace "http://netconfcentral.org/ns/netconfd";

    prefix "nd";

    import yuma-ncx { prefix ncx; }

    import yuma-types { prefix nt; }

    import yuma-app-common { prefix ncxapp; }

    import ietf-inet-types { prefix inet; }

    import ietf-netconf-with-defaults { prefix wd; }

    organization  "Netconf Central";

    contact "Andy Bierman <support@netconfcentral.org>.";

    description 
       "Configuration Parameters for netconfd;
        This module is not advertised by the server.
        It contains only CLI parameters.";

    revision 2010-05-13 {
       description 
         "Added --with-url to enable :url capability.";
    }

    revision 2010-01-14 {
       description 
         "Initial version for 0.9.9 release.";
    }

    grouping StartupChoice {
      choice start {
        description "select startup config for boot load";
        // default is set in the agt_profile

        leaf no-startup {
          description
             "If present, do not load the startup config file.";
          type empty;
        }

        leaf startup {
          description
             "The full or relative filespec of the startup config 
              file to use.

              If present, overrides the default startup config
              file name 'startup-cfg.xml',  This will also
              override the YUMA_DATAPATH environment variable
              and the datapath CLI parameter, if the first
              character is the forward slash '/', indicating
              an absolute file path.";
          type string;
        }
      }
    }

    container netconfd {
      ncx:cli;

      description
         "Server CLI for the NETCONF protocol.
          Usage:
            netconfd [parameters]";

      uses ncxapp:NcxAppCommon;

      uses ncxapp:SubdirsParm;

      leaf access-control {
        description
          "Controls how access control is enforced by the server.";
        type enumeration {
           enum enforcing {
             description 
               "All configured access control rules will be
                enforced.";
           }
           enum permissive {
             description 
               "All configured access control rules will be
                enforced for write and execute requests.
                All read requests will be allowed, unless
                the requested object contains the
                'nacm:very-secure' extension.  In that case,
                all configured access control rules will
                be enforced.";
           }
           enum disabled {
             description 
               "All read, write, and execute requests will be
                allowed, unless the object contains the
                'nacm:secure' or 'nacm:very-secure' extension.
                If the 'nacm:secure' extension is in effect,
                then all configured access control rules
                will be enforced for write and execute requests.
                If the 'nacm:very-secure' extension is in effect,
                then all configured access control rules
                will be enforced for all requests.
                Use this mode with caution.";
           }
           enum off {
             description
               "All access control enforcement is disabled.
                Use this mode with extreme caution.";
           }
        }
        default enforcing;
      }

      leaf default-style {
        description
           "Selects the type of filtering behavior the server will
            advertise as the 'basic' behavior in the 'with-defaults'
            capability.  The server will use this default handling
            behavior if the 'with-defaults' parameter is not 
            explicitly set.

            Also, when saving a configuration to NV-storage,
            this value will be used for filtering defaults
            from the saved configuration.";
         type wd:with-defaults-mode;
         default explicit;
      }

      leaf eventlog-size {
        description
           "Specifies the maximum number of notification events
            that will be saved in the notification replay buffer.
            The oldest entries will be deleted first.";
         type uint32;
         default 1000;
      }

      leaf hello-timeout {
        description
           "Specifies the number of seconds that a session
            may exist before the hello PDU is received.
            A session will be dropped if no hello PDU 
            is received before this number of seconds elapses.

            If this parameter is set to zero, then the server
            will wait forever for a hello message, and not
            drop any sessions stuck in 'hello-wait' state.

            Setting this parameter to zero may permit
            denial of service attacks, since only a limited
            number of concurrent sessions are supported
            by the server.";
         type uint32 {
            range "0 | 10 .. 3600";
         }
         units seconds;
         default 600;    // 10 minutes
      }

      leaf idle-timeout {
        description
           "Specifies the number of seconds that a session
            may remain idle without issuing any RPC requests.
            A session will be dropped if it is idle for an
            interval longer than this number of seconds.

            Sessions that have a notification subscription
            active are never dropped. 

            If this parameter is set to zero, then the server
            will never drop a session because it is idle.";
         type uint32 {
            range "0 | 10 .. 360000";
         }
         units seconds;
         default 3600;    // 1 hour
      }

      leaf max-burst {
        description
          "Specifies the maximum number of notifications
           that should be sent to one session, within a
           one second time interval.  The value 0 indicates 
           that the server should not limit notification
           bursts at all.";
        type uint32;
        default 10;
      }

      leaf-list port {
        max-elements 4;
        description 
          "Specifies the TCP ports that the server will accept
           connections from.  These ports must also be configured
           in the /etc/ssh/sshd_config file for the SSH master
           server to accept the connection and invoke the netconf
           subsystem.

           Up to 4 port numbers can be configured.

           If any ports are configured, then only those values
           will be accepted by the server.

           If no ports are configured, then the server will accept
           connections on the netconf-ssh port (tcp/830).";

         type inet:port-number;
      }

      uses ncxapp:ModuleParm;

      uses ncxapp:DeviationParm;

      uses ncxapp:DatapathParm;

      uses StartupChoice;

      leaf startup-error {
        description
          "Controls the server behavior if any errors are 
           encountered while loading the startup configuration
           file into the running configuration at boot-time.";
         type enumeration {
           enum stop {
             description
               "Terminate the program if any errors are
                encountered in the startup configuration.";
           }
           enum continue {
             description
               "Continue the program if any errors are
                encountered in the startup configuration.
                The entire module-specific data structure(s)
                containing the error node(s) will not be added
                to the running configuration at boot-time.";
           }
        }
        default continue;
      }

      leaf superuser {
        description
          "The user name to use as the superuser account.
           Any session associated with this user name 
           will bypass all access control enforcement.
           See yuma-nacm.yang for more details.

           To disable the superuser account completely,
           set this parameter to the empty string.";
        type union {
            type nt:NcxName;
            type string { length 0; }
        }
        default "superuser";
      }

      leaf target {
        description
          "The database to use as the target of edit-config
           operations.";
        type enumeration {
          enum running {
            description 
             "Write to the running config and support
              the :writable-running capability.";
          }
          enum candidate {
            description 
              "Write to the candidate config and support
               the :candidate and :confirmed-commit 
               capabilities.";
          }
        }
        // default is set in the agt_profile
        default candidate;
      }

      leaf usexmlorder {
        description
          "If present, then XML element order will be enforced.
           Otherwise, XML element order errors will not be
           generated if possible. Default is no enforcement of
           strict XML order.";
        type empty;
      }

      leaf with-startup {
        description
          "If set to 'true', then the :startup capability will be 
           enabled. Otherwise, the :startup capability
           will not be enabled.  This capability 
           makes the NV-save operation an explicit operation
           instead of an automatic save.";
        type boolean;
        default false;
      }

      leaf with-url {
        description
          "If set to 'true', then the :url capability will be 
           enabled. Otherwise, the :url capability
           will not be enabled.  This capability requires a
           file system and may introduce security risks
           because internal files such as startup-cfg.xml
           and backup-cfg.xml will be exposed.";
        type boolean;
        default true;
      }

      leaf with-validate {
        description
          "If set to 'true', then the :validate capability will be 
           enabled. Otherwise, the :validate capability
           will not be enabled.  This capability requires
           extensive memory resources.";
        type boolean;
        default true;
      }
    }
}