module Cisco-IOS-XR-sysadmin-system {

    yang-version 1;

    namespace
      "http://www.cisco.com/ns/yang/Cisco-IOS-XR-sysadmin-system";

    prefix calvados_system;

    import tailf-common {
      prefix tailf;
    }
    import ietf-inet-types {
      prefix inet;
    }
    import cisco-semver {
      prefix semver;
    }

    organization "Cisco Systems Inc.";

    contact
      "Cisco Systems, Inc.
     Customer Service
     
     Postal: 170 West Tasman Drive
     San Jose, CA 95134
     
     Tel: +1 800 553-NETS
     
     E-mail: cs-yang@cisco.com";

    description
      "This module contains a collection of YANG
     definitions for Cisco IOS-XR SysAdmin configuration.
     
     This module defines the system users authentication
     credentials and virtual IP that can be modified in
     runtime.
     
     Copyright (c) 2011-2020 by Cisco Systems, Inc.
     All rights reserved.";

    revision "2019-04-15" {
      description
        "Establish semantic version baseline.";
    }

    revision "2018-04-09" {
      description
        "Required changes for ConfD 6.4.5";
    }

    revision "2017-10-31" {
      description
        "Allow loading of errorLog config changes during OCU";
    }

    revision "2017-01-31" {
      description
        "Changed the namespace and module name";
    }

    revision "2011-06-20" {
      description "Initial revision";
    }

    semver:module-version "1.0.0";

    typedef file-name-type {
      type string;
    }

    typedef screen-length {
      type uint64 {
        range "0 .. 32000";
      }
    }

    typedef screen-width {
      type uint64 {
        range "0 .. 512";
      }
    }

    typedef ipv4-subnet-mask-ip {
      type inet:ip-address;
    }

    typedef ipv6-prefix {
      type uint8 {
        range "0..128";
      }
    }

    typedef calvados-ipv4-with-optional-subnet-bits {
      type string {
        pattern
          "(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(/(([0-9])|([1-2][0-9])|(3[0-2])))?";
      }
      description
        "The ipv4-prefix type represents an IPv4 address prefix.
       The prefix length is given by the number following the
       slash character and must be less than or equal to 32.";
    }

    typedef calvados-ipv6-with-optional-prefix {
      type string {
        pattern
          "((:|[0-9a-fA-F]{0,4}):)([0-9a-fA-F]{0,4}:){0,5}((([0-9a-fA-F]{0,4}:)?(:|[0-9a-fA-F]{0,4}))|(((25[0-5]|2[0-4][0-9]|[01]?[0-9]?[0-9])\\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9]?[0-9])))(/(([0-9])|([0-9]{2})|(1[0-1][0-9])|(12[0-8])))?";
        pattern
          "(([^:]+:){6}(([^:]+:[^:]+)|(.*\\..*)))|((([^:]+:)*[^:]+)?::(([^:]+:)*[^:]+)?)(/.+)?";
      }
      description
        "The ipv6-prefix type represents an IPv6 address prefix.
       The prefix length is given by the number following the
       slash character and must be less than or equal 128.";
    }

    container mgmt {
      container ipv4 {
        leaf address {
          type calvados-ipv4-with-optional-subnet-bits;
          must
            "true() = contains(../subnet-mask-ip, '.') or true() = contains(../address, '/')" {
            error-message
              "you must provide subnet, it must be of the form
             A.B.C.D/subnet-bits or A.B.C.D subnet-ip";
          }
        }

        leaf subnet-mask-ip {
          type ipv4-subnet-mask-ip;
          must
            "false() = contains(../address, '/')" {
            error-message
              "you already provided subnet earlier it must be of the form
             A.B.C.D/subnet-bits or A.B.C.D subnet-ip";
          }
        }
      }  // container ipv4

      container ipv6 {
        leaf address {
          type calvados-ipv6-with-optional-prefix;
          must
            "true() = (../prefix) or true() = contains(../address, '/')" {
            error-message
              "you must provide prefix.It must be of the form
             X:X::X/prefix or X:X::X prefix";
          }
        }

        leaf prefix {
          type ipv6-prefix;
          must
            "false() = contains(../address, '/')" {
            error-message
              "you already provided prefix earlier it must be of
             form X:X::X/prefix or X:X::X prefix";
          }
        }
      }  // container ipv6
    }  // container mgmt
  }  // module Cisco-IOS-XR-sysadmin-system