More handler separation: e.g. RouteHandler or VlanHandler can call LinkHandler

lib/netlink/route/vlan_handler.rb

@@ -0,0 +1,68 @@
+require 'netlink/route'
+
+module Netlink
+  module Route
+    class VlanHandler
+      def initialize(rtsocket = Netlink::Route::Socket.new)
+        @rtsocket = rtsocket
+      end
+      
+      def index(v)
+        @rtsocket.index(v)
+      end
+      
+      def list(filter={}, &blk)
+        @rtsocket.links.list(filter.merge(:kind=>"vlan"))
+      end
+      alias :each :list
+            
+      # Higher-level API to manipulate VLAN interface.
+      #    nl.vlans.add(
+      #      :link=>"lo",
+      #      :vlan_id=>1234,
+      #      :vlan_flags=>Netlink::VLAN_FLAG_LOOSE_BINDING,
+      #      :vlan_mask=>0xffffffff
+      #    )
+      def add(opt)
+        @rtsocket.links.add(vlan_options(opt))
+      end
+      
+      def change(opt)
+        @rtsocket.links.change(vlan_options(opt))
+      end
+      
+      def replace(opt)
+        @rtsocket.links.replace(vlan_options(opt))
+      end
+      
+      # Delete vlan given :link and :vlan_id. If you want to delete
+      # by :index then call links.delete instead.
+      def delete(opt)
+        raise "Missing vlan_id" unless opt[:vlan_id]
+        raise "Missing link" unless opt[:link]
+        link = list(:link=>opt[:link]).find { |l|
+            l.linkinfo.data &&
+            l.linkinfo.data.id == opt[:vlan_id]
+        }
+        raise Errno::ENODEV unless link
+        @rtsocket.links.delete(link.index)
+      end
+
+      def vlan_options(orig) #:nodoc:
+        opt = orig.dup
+        opt[:link] = index(opt.fetch(:link))
+        li = opt[:linkinfo] ||= LinkInfo.new
+        li.kind = "vlan"
+        li.data ||= VlanInfo.new
+        li.data.id = opt.delete(:vlan_id) if opt.has_key?(:vlan_id)
+        if opt.has_key?(:vlan_flags)
+          li.data.flags ||= VlanFlags.new(:flags => opt.delete(:vlan_flags))
+          li.data.flags.mask = opt.delete(:vlan_mask) if opt.has_key?(:vlan_mask)
+        end
+        li.data.egress_qos = opt.delete(:egress_qos) if opt.has_key?(:egress_qos)
+        li.data.ingress_qos = opt.delete(:ingress_qos) if opt.has_key?(:ingress_qos)
+        opt
+      end
+    end
+  end
+end