module openconfig-system-terminal {

    yang-version 1;

    namespace
      "http://openconfig.net/yang/system/terminal";

    prefix oc-sys-term;

    import openconfig-extensions {
      prefix oc-ext;
    }

    organization "OpenConfig working group";

    contact
      "OpenConfig working group
www.openconfig.net";

    description
      "This module defines configuration and operational state data
related to remote terminal services such as ssh and telnet.";

    revision "2018-11-21" {
      description
        "Add OpenConfig module metadata extensions.";
      reference
        "0.3.1";

    }

    revision "2017-09-18" {
      description
        "Updated to use OpenConfig types modules";
      reference
        "0.3.0";

    }

    revision "2017-07-06" {
      description
        "Move to oc-inet types, add IETF attribution, add RADIUS
counters, changed password leaf names to indicate hashed";
      reference
        "0.2.0";

    }

    revision "2017-01-29" {
      description "Initial public release";
      reference
        "0.1.0";

    }

    oc-ext:openconfig-version "0.3.1";
    oc-ext:regexp-posix;
    oc-ext:catalog-organization "openconfig";
    oc-ext:origin "openconfig";

    grouping system-terminal-common-config {
      description
        "Common configuration data for terminal services";
      leaf timeout {
        type uint16;
        units "seconds";
        description
          "Set the idle timeout in seconds on terminal connections to
the system for the protocol.";
      }

      leaf rate-limit {
        type uint16;
        units "conn/min";
        description
          "Set a limit on the number of connection attempts per
minute to the system for the protocol.";
      }

      leaf session-limit {
        type uint16;
        description
          "Set a limit on the number of simultaneous active terminal
sessions to the system for the protocol (e.g., ssh,
telnet, ...) ";
      }
    }  // grouping system-terminal-common-config

    grouping system-terminal-common-state {
      description
        "Common operational state data for terminal services";
    }  // grouping system-terminal-common-state

    grouping system-terminal-common-top {
      description
        "Top-level grouping for common terminal service data";
      container terminal-servers {
        description
          "Top-level container for terminal services";
        container config {
          description
            "Configuration data for terminal services";
          uses system-terminal-common-config;
        }  // container config

        container state {
          config false;
          description
            "Operational state data ";
          uses system-terminal-common-config;

          uses system-terminal-common-state;
        }  // container state
      }  // container terminal-servers
    }  // grouping system-terminal-common-top

    grouping system-ssh-server-config {
      description
        "Configuration data for system ssh configuration";
      leaf enable {
        type boolean;
        default "true";
        description
          "Enables the ssh server.  The ssh server is enabled by
default.";
      }

      leaf protocol-version {
        type enumeration {
          enum "V2" {
            value 0;
            description "Use SSH v2 only";
          }
          enum "V1" {
            value 1;
            description "Use SSH v1 only";
          }
          enum "V1_V2" {
            value 2;
            description
              "Use either SSH v1 or v2";
          }
        }
        default "V2";
        description
          "Set the protocol version for SSH connections to the system";
      }

      uses system-terminal-common-config;
    }  // grouping system-ssh-server-config

    grouping system-ssh-server-state {
      description
        "Operational state data for ssh server";
    }  // grouping system-ssh-server-state

    grouping system-ssh-server-top {
      description
        "Top-level grouping for ssh server data";
      container ssh-server {
        description
          "Top-level container for ssh server";
        container config {
          description
            "Configuration data for the system ssh server";
          uses system-ssh-server-config;
        }  // container config

        container state {
          config false;
          description
            "Operational state data for the system ssh server";
          uses system-ssh-server-config;

          uses system-ssh-server-state;
        }  // container state
      }  // container ssh-server
    }  // grouping system-ssh-server-top

    grouping system-telnet-server-config {
      description
        "Configuration data for telnet server";
      leaf enable {
        type boolean;
        default "false";
        description
          "Enables the telnet server.  Telnet is disabled by
default";
      }

      uses system-terminal-common-config;
    }  // grouping system-telnet-server-config

    grouping system-telnet-server-state {
      description
        "Operational state data for telnet server";
    }  // grouping system-telnet-server-state

    grouping system-telnet-server-top {
      description
        "Top-level grouping for telnet server ";
      container telnet-server {
        description
          "Top-level container for telnet terminal servers";
        container config {
          description
            "Configuration data for telnet";
          uses system-telnet-server-config;
        }  // container config

        container state {
          config false;
          description
            "Operational state data for telnet";
          uses system-telnet-server-config;

          uses system-telnet-server-state;
        }  // container state
      }  // container telnet-server
    }  // grouping system-telnet-server-top
  }  // module openconfig-system-terminal