yang: add weight in nexthop operational model

add weight field to operational model.
add leafref to nexthopgroup.
format according to yanglint.

Signed-off-by: Chirag Shah <chirag@cumulusnetworks.com>

diff --git a/yang/frr-nexthop.yang b/yang/frr-nexthop.yang
index 17c3eaa403571a397c1af4e17a1c13242a3a2e70..07e15eb7745886f12832d723791a78aa037668d0 100644 (file)
--- a/yang/frr-nexthop.yang
+++ b/yang/frr-nexthop.yang
@@ -16,7 +16,7 @@ module frr-nexthop {
   }
 
   import frr-vrf {
-    prefix "frr-vrf";
+    prefix frr-vrf;
   }
 
   organization
@@ -33,13 +33,12 @@ module frr-nexthop {
   }
 
   typedef optional-ip-address {
-     type union {
-       type inet:ip-address;
-       type string {
-         pattern
-           '';
-       }
-     }
+    type union {
+      type inet:ip-address;
+      type string {
+        pattern '';
+      }
+    }
   }
 
   /*
@@ -148,10 +147,11 @@ module frr-nexthop {
       when "../nh-type = 'ip4-ifindex' or
             ../nh-type = 'ip6-ifindex'";
       type boolean;
-      default false;
+      default "false";
       description
         "Nexthop is directly connected.";
     }
+
     uses rt-types:mpls-label-stack {
       description
         "Nexthop's MPLS label stack.";
@@ -163,29 +163,39 @@ module frr-nexthop {
    */
   grouping frr-nexthop-operational {
     leaf duplicate {
-      config false;
       type empty;
+      config false;
       description
         "Duplicate nexthop";
     }
+
     leaf recursive {
-      config false;
       type empty;
+      config false;
       description
         "Nexthop resolved through another gateway.";
     }
+
     leaf active {
-      config false;
       type empty;
+      config false;
       description
         "Nexthop is active.";
     }
+
     leaf fib {
-      config false;
       type empty;
+      config false;
       description
         "Nexthop is installed in fib.";
     }
+
+    leaf weight {
+      type uint8;
+      config false;
+      description
+        "Weight to be used by the nexthop for purposes of ECMP";
+    }
   }
 
   /*
@@ -199,7 +209,6 @@ module frr-nexthop {
         key "nh-type gateway interface";
         description
           "A list of nexthop objects.";
-
         uses frr-nexthop-attributes;
       }
     }
@@ -228,12 +237,18 @@ module frr-nexthop {
   container frr-nexthop-group {
     description
       "A nexthop-group, represented as a list of nexthop objects.";
-
     uses frr-nexthop-grouping;
   }
 
+  typedef nexthop-group-ref {
+    type leafref {
+      require-instance false;
+      path "/frr-nexthop:frr-nexthop-group/frr-nexthop:nexthop-group/frr-nexthop:name";
+    }
+  }
+
   /*
-   * Agument weight attributes to nexthop group.
+   * Augment weight attributes to nexthop group.
    */
   augment "/frr-nexthop-group/nexthop-group/frr-nexthops/nexthop" {
     leaf weight {