Add support for ip version ss131122

2 files changed, 934 insertions, 2 deletions

diff --git a/lib/ohai/plugins/linux/network.rb b/lib/ohai/plugins/linux/network.rb
index 11d88673..54a669f5 100644
--- a/lib/ohai/plugins/linux/network.rb
+++ b/lib/ohai/plugins/linux/network.rb
@@ -161,10 +161,16 @@ Ohai.plugin(:Network) do
           net_counters[tmp_int][:tx][:queuelen] = $1
         end
 
-        if line =~ /vlan id (\d+)/
-          tmp_id = $1
+        if line =~ /vlan id (\d+)/ or line =~ /vlan protocol ([\w\.]+) id (\d+)/
+          if $2
+            tmp_prot = $1
+            tmp_id = $2
+          else
+            tmp_id = $1
+          end
           iface[tmp_int][:vlan] = Mash.new unless iface[tmp_int][:vlan]
           iface[tmp_int][:vlan][:id] = tmp_id
+          iface[tmp_int][:vlan][:protocol] = tmp_prot if tmp_prot
 
           vlan_flags = line.scan(/(REORDER_HDR|GVRP|LOOSE_BINDING)/)
           if vlan_flags.length > 0
diff --git a/spec/unit/plugins/linux/ss131122_network_spec.rb b/spec/unit/plugins/linux/ss131122_network_spec.rb
new file mode 100644
index 00000000..695acc25
--- /dev/null
+++ b/spec/unit/plugins/linux/ss131122_network_spec.rb
@@ -0,0 +1,926 @@
+#
+#  Author:: Caleb Tennis <caleb.tennis@gmail.com>
+#  Copyright:: Copyright (c) 2011 Opscode, Inc.
+#  License:: Apache License, Version 2.0
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+require File.expand_path(File.dirname(__FILE__) + '/../../../spec_helper.rb')
+
+begin
+  require 'ipaddress'
+rescue LoadError => e
+  puts "The linux network plugin spec tests will fail without the 'ipaddress' library/gem.\n\n"
+  raise e
+end
+
+def do_stubs
+  @plugin.stub(:collect_os).and_return(:linux)
+  @plugin.stub(:shell_out).with("ip addr").and_return(mock_shell_out(0, @linux_ip_addr, ""))
+  @plugin.stub(:shell_out).with("ip -d -s link").and_return(mock_shell_out(0, @linux_ip_link_s_d, ""))
+  @plugin.stub(:shell_out).with("ip -f inet neigh show").and_return(mock_shell_out(0, @linux_ip_neighbor_show, ""))
+  @plugin.stub(:shell_out).with("ip -f inet6 neigh show").and_return(mock_shell_out(0, @linux_ip_inet6_neighbor_show, ""))
+  @plugin.stub(:shell_out).with("ip -f inet route show").and_return(mock_shell_out(0, @linux_ip_route, ""))
+  @plugin.stub(:shell_out).with("ip -f inet6 route show").and_return(mock_shell_out(0, @linux_ip_route_inet6, ""))
+  @plugin.stub(:shell_out).with("route -n").and_return(mock_shell_out(0, @linux_route_n, ""))
+  @plugin.stub(:shell_out).with("ifconfig -a").and_return(mock_shell_out(0, @linux_ifconfig, ""))
+  @plugin.stub(:shell_out).with("arp -an").and_return(mock_shell_out(0, @linux_arp_an, ""))
+end
+
+describe Ohai::System, "Linux Network Plugin" do
+
+  before do
+    @linux_ifconfig = <<-ENDIFCONFIG
+eth0      Link encap:Ethernet  HWaddr 12:31:3D:02:BE:A2  
+          inet addr:10.116.201.76  Bcast:10.116.201.255  Mask:255.255.255.0
+          inet6 addr: fe80::1031:3dff:fe02:bea2/64 Scope:Link
+          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
+          RX packets:2659966 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:1919690 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:1000 
+          RX bytes:1392844460 (1.2 GiB)  TX bytes:691785313 (659.7 MiB)
+          Interrupt:16 
+
+eth0:5    Link encap:Ethernet  HWaddr 00:0c:29:41:71:45  
+          inet addr:192.168.5.1  Bcast:192.168.5.255  Mask:255.255.255.0
+          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
+
+eth0.11   Link encap:Ethernet  HWaddr 00:aa:bb:cc:dd:ee  
+          inet addr:192.168.0.16  Bcast:192.168.0.255  Mask:255.255.255.0
+          inet6 addr: fe80::2aa:bbff:fecc:ddee/64 Scope:Link
+          inet6 addr: 1111:2222:3333:4444::2/64 Scope:Global
+          inet6 addr: 1111:2222:3333:4444::3/64 Scope:Global
+          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
+          RX packets:1208795008 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:3269635153 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:0 
+          RX bytes:1751940374 (1.6 GiB)  TX bytes:2195567597 (2.0 GiB)
+
+eth0.151  Link encap:Ethernet  HWaddr 00:aa:bb:cc:dd:ee  
+          inet addr:10.151.0.16  Bcast:10.151.0.255  Mask:255.255.255.0
+          inet6 addr: fe80::2aa:bbff:fecc:ddee/64 Scope:Link
+          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
+          RX packets:206553677 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:163901336 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:0 
+          RX bytes:3190792261 (2.9 GiB)  TX bytes:755086548 (720.1 MiB)
+
+eth0.152  Link encap:Ethernet  HWaddr 00:aa:bb:cc:dd:ee  
+          inet addr:10.152.1.16  Bcast:10.152.3.255  Mask:255.255.252.0
+          inet6 addr: fe80::2aa:bbff:fecc:ddee/64 Scope:Link
+          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
+          RX packets:14016741 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:55232 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:0 
+          RX bytes:664957462 (634.1 MiB)  TX bytes:4876434 (4.6 MiB)
+
+eth0.153  Link encap:Ethernet  HWaddr 00:aa:bb:cc:dd:ee  
+          inet addr:10.153.1.16  Bcast:10.153.3.255  Mask:255.255.252.0
+          inet6 addr: fe80::2aa:bbff:fecc:ddee/64 Scope:Link
+          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
+          RX packets:2022667595 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:1798627472 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:0 
+          RX bytes:4047036732 (3.7 GiB)  TX bytes:3451231474 (3.2 GiB)
+
+foo:veth0@eth0 Link encap:Ethernet  HWaddr ca:b3:73:8b:0c:e4  
+          BROADCAST MULTICAST  MTU:1500  Metric:1
+
+tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
+          inet addr:172.16.19.39  P-t-P:172.16.19.1  Mask:255.255.255.255
+          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1418  Metric:1
+          RX packets:57200 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:13782 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:100 
+          RX bytes:7377600 (7.0 MiB)  TX bytes:1175481 (1.1 MiB)
+
+venet0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
+          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1418  Metric:1
+          RX packets:57200 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:13782 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:100 
+          RX bytes:7377600 (7.0 MiB)  TX bytes:1175481 (1.1 MiB)
+
+venet0:0  Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
+          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1418  Metric:1
+          RX packets:57200 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:13782 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:100 
+          RX bytes:7377600 (7.0 MiB)  TX bytes:1175481 (1.1 MiB)
+
+lo        Link encap:Local Loopback  
+          inet addr:127.0.0.1  Mask:255.0.0.0
+          inet6 addr: ::1/128 Scope:Host
+          UP LOOPBACK RUNNING  MTU:16436  Metric:1
+          RX packets:524 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:524 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:0 
+          RX bytes:35224 (34.3 KiB)  TX bytes:35224 (34.3 KiB)
+ENDIFCONFIG
+# Note that ifconfig shows foo:veth0@eth0 but fails to show any address information.
+# This was not a mistake collecting the output and Apparently ifconfig is broken in this regard.
+
+    @linux_ip_addr = <<-IP_ADDR
+1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN group default
+    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
+    inet 127.0.0.1/8 scope host lo
+       valid_lft forever preferred_lft forever
+    inet6 ::1/128 scope host 
+       valid_lft forever preferred_lft forever
+2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
+    link/ether 12:31:3d:02:be:a2 brd ff:ff:ff:ff:ff:ff
+    inet 10.116.201.76/24 brd 10.116.201.255 scope global eth0
+       valid_lft forever preferred_lft forever
+    inet 10.116.201.75/32 scope global eth0
+       valid_lft forever preferred_lft forever
+    inet 10.116.201.74/24 scope global secondary eth0
+       valid_lft forever preferred_lft forever
+    inet 192.168.5.1/24 brd 192.168.5.255 scope global eth0:5
+       valid_lft forever preferred_lft forever
+    inet6 fe80::1031:3dff:fe02:bea2/64 scope link 
+       valid_lft forever preferred_lft forever
+   inet6 2001:44b8:4160:8f00:a00:27ff:fe13:eacd/64 scope global dynamic 
+       valid_lft 6128sec preferred_lft 2526sec
+3: eth0.11@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
+    link/ether 00:aa:bb:cc:dd:ee brd ff:ff:ff:ff:ff:ff
+    inet 192.168.0.16/24 brd 192.168.0.255 scope global eth0.11
+       valid_lft forever preferred_lft forever
+    inet6 fe80::2e0:81ff:fe2b:48e7/64 scope link 
+       valid_lft forever preferred_lft forever
+    inet6 1111:2222:3333:4444::2/64 scope global
+       valid_lft forever preferred_lft forever
+    inet6 1111:2222:3333:4444::3/64 scope global
+       valid_lft forever preferred_lft forever
+4: eth0.151@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
+    link/ether 00:aa:bb:cc:dd:ee brd ff:ff:ff:ff:ff:ff
+    inet 10.151.0.16/24 brd 10.151.0.255 scope global eth0.151
+       valid_lft forever preferred_lft forever
+    inet 10.151.1.16/24 scope global eth0.151
+       valid_lft forever preferred_lft forever
+    inet6 fe80::2e0:81ff:fe2b:48e7/64 scope link 
+       valid_lft forever preferred_lft forever
+5: eth0.152@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
+    link/ether 00:aa:bb:cc:dd:ee brd ff:ff:ff:ff:ff:ff
+    inet 10.152.1.16/22 brd 10.152.3.255 scope global eth0.152
+       valid_lft forever preferred_lft forever
+    inet6 fe80::2e0:81ff:fe2b:48e7/64 scope link 
+       valid_lft forever preferred_lft forever
+6: eth0.153@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
+    link/ether 00:aa:bb:cc:dd:ee brd ff:ff:ff:ff:ff:ff
+    inet 10.153.1.16/22 brd 10.153.3.255 scope global eth0.153
+       valid_lft forever preferred_lft forever
+    inet6 fe80::2e0:81ff:fe2b:48e7/64 scope link 
+       valid_lft forever preferred_lft forever
+7: foo:veth0@eth0@veth0: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noop state DOWN group default
+    link/ether ca:b3:73:8b:0c:e4 brd ff:ff:ff:ff:ff:ff
+    inet 192.168.212.2/24 scope global foo:veth0@eth0
+       valid_lft forever preferred_lft forever
+8: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
+    link/none
+    inet 172.16.19.39 peer 172.16.19.1 scope global tun0
+       valid_lft forever preferred_lft forever
+9: venet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
+    link/void
+    inet 127.0.0.2/32 scope host venet0
+       valid_lft forever preferred_lft forever
+    inet 172.16.19.48/32 scope global venet0:0
+       valid_lft forever preferred_lft forever
+IP_ADDR
+
+    @linux_ip_link_s_d = <<-IP_LINK_S
+1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT group default
+    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 promiscuity 0
+    RX: bytes  packets  errors  dropped overrun mcast   
+    35224      524      0       0       0       0      
+    TX: bytes  packets  errors  dropped carrier collsns 
+    35224      524      0       0       0       0      
+2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
+    link/ether 12:31:3d:02:be:a2 brd ff:ff:ff:ff:ff:ff promiscuity 0
+    RX: bytes  packets  errors  dropped overrun mcast   
+    1392844460 2659966  0       0       0       0      
+    TX: bytes  packets  errors  dropped carrier collsns 
+    691785313  1919690  0       0       0       0      
+3: eth0.11@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
+    link/ether 00:0c:29:41:71:45 brd ff:ff:ff:ff:ff:ff promiscuity 0
+    vlan protocol 802.1Q id 11 <REORDER_HDR> 
+    RX: bytes  packets  errors  dropped overrun mcast   
+    0          0        0       0       0       0      
+    TX: bytes  packets  errors  dropped carrier collsns 
+    0          0        0       0       0       0      
+4: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 100
+    link/none promiscuity 0
+    RX: bytes  packets  errors  dropped overrun mcast   
+    1392844460 2659966  0       0       0       0      
+    TX: bytes  packets  errors  dropped carrier collsns 
+    691785313  1919690  0       0       0       0      
+5: venet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
+    link/void promiscuity 0
+    RX: bytes  packets  errors  dropped overrun mcast   
+    1392844460 2659966  0       0       0       0      
+    TX: bytes  packets  errors  dropped carrier collsns 
+    691785313  1919690  0       0       0       0         
+IP_LINK_S
+
+    @linux_route_n = <<-ROUTE_N
+Kernel IP routing table
+Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
+10.116.201.0    0.0.0.0         255.255.255.0   U     0      0        0 eth0
+169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
+0.0.0.0         10.116.201.1    0.0.0.0         UG    0      0        0 eth0
+ROUTE_N
+
+    @linux_arp_an = <<-ARP_AN
+? (10.116.201.1) at fe:ff:ff:ff:ff:ff [ether] on eth0
+ARP_AN
+
+    @linux_ip_neighbor_show = <<-NEIGHBOR_SHOW
+10.116.201.1 dev eth0 lladdr fe:ff:ff:ff:ff:ff REACHABLE
+NEIGHBOR_SHOW
+
+    @linux_ip_inet6_neighbor_show = <<-NEIGHBOR_SHOW
+1111:2222:3333:4444::1 dev eth0.11 lladdr 00:1c:0e:12:34:56 router REACHABLE
+fe80::21c:eff:fe12:3456 dev eth0.11 lladdr 00:1c:0e:30:28:00 router REACHABLE
+fe80::21c:eff:fe12:3456 dev eth0.153 lladdr 00:1c:0e:30:28:00 router REACHABLE
+NEIGHBOR_SHOW
+
+    @linux_ip_route = <<-IP_ROUTE_SCOPE
+10.116.201.0/24 dev eth0  proto kernel
+192.168.5.0/24 dev eth0  proto kernel  scope link  src 192.168.5.1
+192.168.212.0/24 dev foo:veth0@eth0  proto kernel  scope link  src 192.168.212.2
+172.16.151.0/24 dev eth0  proto kernel  scope link  src 172.16.151.100
+192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.2
+default via 10.116.201.1 dev eth0
+IP_ROUTE_SCOPE
+
+    @linux_ip_route_inet6 = <<-IP_ROUTE_SCOPE
+fe80::/64 dev eth0  proto kernel  metric 256
+fe80::/64 dev eth0.11  proto kernel  metric 256
+1111:2222:3333:4444::/64 dev eth0.11  metric 1024  expires 86023sec
+default via 1111:2222:3333:4444::1 dev eth0.11  metric 1024
+IP_ROUTE_SCOPE
+
+    @plugin = get_plugin("linux/network")
+    @plugin.stub(:shell_out).with("ifconfig -a").and_return([0, @linux_ifconfig, ""])
+    @plugin.stub(:shell_out).with("arp -an").and_return([0, @linux_arp_an, ""])
+  end
+
+  ["ifconfig","iproute2"].each do |network_method|
+
+    describe "gathering IP layer address info via #{network_method}" do
+      before do
+        File.stub(:exist?).with("/sbin/ip").and_return( network_method == "iproute2" )
+        do_stubs
+      end
+
+      it "completes the run" do
+        Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+        @plugin.run
+        @plugin['network'].should_not be_nil
+      end
+
+      it "detects the interfaces" do
+        @plugin.run
+        @plugin['network']['interfaces'].keys.sort.should == ["eth0", "eth0.11", "eth0.151", "eth0.152", "eth0.153", "eth0:5", "foo:veth0@eth0", "lo", "tun0", "venet0", "venet0:0"]
+      end
+
+      it "detects the ipv4 addresses of the ethernet interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['eth0']['addresses'].keys.should include('10.116.201.76')
+        @plugin['network']['interfaces']['eth0']['addresses']['10.116.201.76']['netmask'].should == '255.255.255.0'
+        @plugin['network']['interfaces']['eth0']['addresses']['10.116.201.76']['broadcast'].should == '10.116.201.255'
+        @plugin['network']['interfaces']['eth0']['addresses']['10.116.201.76']['family'].should == 'inet'
+      end
+
+      it "detects the ipv4 addresses of an ethernet subinterface" do
+        @plugin.run
+        @plugin['network']['interfaces']['eth0.11']['addresses'].keys.should include('192.168.0.16')
+        @plugin['network']['interfaces']['eth0.11']['addresses']['192.168.0.16']['netmask'].should == '255.255.255.0'
+        @plugin['network']['interfaces']['eth0.11']['addresses']['192.168.0.16']['broadcast'].should == '192.168.0.255'
+        @plugin['network']['interfaces']['eth0.11']['addresses']['192.168.0.16']['family'].should == 'inet'
+      end
+
+      it "detects the ipv6 addresses of the ethernet interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['eth0']['addresses'].keys.should include('fe80::1031:3dff:fe02:bea2')
+        @plugin['network']['interfaces']['eth0']['addresses']['fe80::1031:3dff:fe02:bea2']['scope'].should == 'Link'
+        @plugin['network']['interfaces']['eth0']['addresses']['fe80::1031:3dff:fe02:bea2']['prefixlen'].should == '64'
+        @plugin['network']['interfaces']['eth0']['addresses']['fe80::1031:3dff:fe02:bea2']['family'].should == 'inet6'
+      end
+
+      it "detects the ipv6 addresses of an ethernet subinterface" do
+        @plugin.run
+        %w[ 1111:2222:3333:4444::2 1111:2222:3333:4444::3 ].each  do |addr|
+          @plugin['network']['interfaces']['eth0.11']['addresses'].keys.should include(addr)
+          @plugin['network']['interfaces']['eth0.11']['addresses'][addr]['scope'].should == 'Global'
+          @plugin['network']['interfaces']['eth0.11']['addresses'][addr]['prefixlen'].should == '64'
+          @plugin['network']['interfaces']['eth0.11']['addresses'][addr]['family'].should == 'inet6'
+        end
+      end
+
+      it "detects the mac addresses of the ethernet interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['eth0']['addresses'].keys.should include('12:31:3D:02:BE:A2')
+        @plugin['network']['interfaces']['eth0']['addresses']['12:31:3D:02:BE:A2']['family'].should == 'lladdr'
+      end
+
+      it "detects the encapsulation type of the ethernet interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['eth0']['encapsulation'].should == 'Ethernet'
+      end
+
+      it "detects the flags of the ethernet interface" do
+        @plugin.run
+        if network_method == "ifconfig"
+          @plugin['network']['interfaces']['eth0']['flags'].sort.should == ['BROADCAST','MULTICAST','RUNNING','UP']
+        else
+          @plugin['network']['interfaces']['eth0']['flags'].sort.should == ['BROADCAST','LOWER_UP','MULTICAST','UP']
+        end
+      end
+
+      it "detects the number of the ethernet interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['eth0']['number'].should == "0"
+      end
+
+      it "detects the mtu of the ethernet interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['eth0']['mtu'].should == "1500"
+      end
+    
+      it "detects the ipv4 addresses of the loopback interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['lo']['addresses'].keys.should include('127.0.0.1')
+        @plugin['network']['interfaces']['lo']['addresses']['127.0.0.1']['netmask'].should == '255.0.0.0'
+        @plugin['network']['interfaces']['lo']['addresses']['127.0.0.1']['family'].should == 'inet'
+      end
+
+      it "detects the ipv6 addresses of the loopback interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['lo']['addresses'].keys.should include('::1')
+        @plugin['network']['interfaces']['lo']['addresses']['::1']['scope'].should == 'Node'
+        @plugin['network']['interfaces']['lo']['addresses']['::1']['prefixlen'].should == '128'
+        @plugin['network']['interfaces']['lo']['addresses']['::1']['family'].should == 'inet6'
+      end
+
+      it "detects the encapsulation type of the loopback interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['lo']['encapsulation'].should == 'Loopback'
+      end
+
+      it "detects the flags of the ethernet interface" do
+        @plugin.run
+        if network_method == "ifconfig"
+          @plugin['network']['interfaces']['lo']['flags'].sort.should == ['LOOPBACK','RUNNING','UP']
+        else
+          @plugin['network']['interfaces']['lo']['flags'].sort.should == ['LOOPBACK','LOWER_UP','UP']
+        end
+      end
+
+
+      it "detects the mtu of the loopback interface" do
+        @plugin.run
+        @plugin['network']['interfaces']['lo']['mtu'].should == "16436"
+      end
+
+      it "detects the arp entries" do
+        @plugin.run
+        @plugin['network']['interfaces']['eth0']['arp']['10.116.201.1'].should == 'fe:ff:ff:ff:ff:ff'
+      end
+
+    end
+  
+    describe "gathering interface counters via #{network_method}" do
+      before do
+        File.stub(:exist?).with("/sbin/ip").and_return( network_method == "iproute2" )
+        do_stubs
+        @plugin.run
+      end
+
+      it "detects the ethernet counters" do
+        @plugin['counters']['network']['interfaces']['eth0']['tx']['bytes'].should == "691785313"
+        @plugin['counters']['network']['interfaces']['eth0']['tx']['packets'].should == "1919690"
+        @plugin['counters']['network']['interfaces']['eth0']['tx']['collisions'].should == "0"
+        @plugin['counters']['network']['interfaces']['eth0']['tx']['queuelen'].should == "1000"
+        @plugin['counters']['network']['interfaces']['eth0']['tx']['errors'].should == "0"
+        @plugin['counters']['network']['interfaces']['eth0']['tx']['carrier'].should == "0"
+        @plugin['counters']['network']['interfaces']['eth0']['tx']['drop'].should == "0"
+
+        @plugin['counters']['network']['interfaces']['eth0']['rx']['bytes'].should == "1392844460"
+        @plugin['counters']['network']['interfaces']['eth0']['rx']['packets'].should == "2659966"
+        @plugin['counters']['network']['interfaces']['eth0']['rx']['errors'].should == "0"
+        @plugin['counters']['network']['interfaces']['eth0']['rx']['overrun'].should == "0"
+        @plugin['counters']['network']['interfaces']['eth0']['rx']['drop'].should == "0"
+      end
+
+      it "detects the loopback counters" do
+        @plugin['counters']['network']['interfaces']['lo']['tx']['bytes'].should == "35224"
+        @plugin['counters']['network']['interfaces']['lo']['tx']['packets'].should == "524"
+        @plugin['counters']['network']['interfaces']['lo']['tx']['collisions'].should == "0"
+        @plugin['counters']['network']['interfaces']['lo']['tx']['errors'].should == "0"
+        @plugin['counters']['network']['interfaces']['lo']['tx']['carrier'].should == "0"
+        @plugin['counters']['network']['interfaces']['lo']['tx']['drop'].should == "0"
+
+        @plugin['counters']['network']['interfaces']['lo']['rx']['bytes'].should == "35224"
+        @plugin['counters']['network']['interfaces']['lo']['rx']['packets'].should == "524"
+        @plugin['counters']['network']['interfaces']['lo']['rx']['errors'].should == "0"
+        @plugin['counters']['network']['interfaces']['lo']['rx']['overrun'].should == "0"
+        @plugin['counters']['network']['interfaces']['lo']['rx']['drop'].should == "0"
+      end
+    end
+
+    describe "setting the node's default IP address attribute with #{network_method}" do
+      before do
+        File.stub(:exist?).with("/sbin/ip").and_return( network_method == "iproute2" )
+        do_stubs
+      end
+
+      describe "without a subinterface" do
+        before do
+          @plugin.run
+        end
+  
+        it "finds the default interface by asking which iface has the default route" do
+          @plugin['network']['default_interface'].should == 'eth0'
+        end
+  
+        it "finds the default gateway by asking which iface has the default route" do
+          @plugin['network']['default_gateway'].should == '10.116.201.1'
+        end
+      end
+  
+      describe "with a link level default route" do
+        before do
+          @linux_ip_route = <<-IP_ROUTE
+10.116.201.0/24 dev eth0  proto kernel
+default dev eth0 scope link
+IP_ROUTE
+          @linux_route_n = <<-ROUTE_N
+Kernel IP routing table
+Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
+10.116.201.0    0.0.0.0         255.255.255.0   U     0      0        0 eth0
+0.0.0.0         0.0.0.0         0.0.0.0         U     0      0        0 eth0
+ROUTE_N
+          do_stubs
+
+          @plugin.run
+        end
+
+        it "finds the default interface by asking which iface has the default route" do
+          @plugin['network']['default_interface'].should == 'eth0'
+        end
+  
+        it "finds the default interface by asking which iface has the default route" do
+          @plugin['network']['default_gateway'].should == '0.0.0.0'
+        end
+      end
+
+      describe "with a subinterface" do
+        before do
+          @linux_ip_route = <<-IP_ROUTE
+192.168.0.0/24 dev eth0.11  proto kernel  src 192.168.0.2
+default via 192.168.0.15 dev eth0.11
+IP_ROUTE
+          @linux_route_n = <<-ROUTE_N
+Kernel IP routing table
+Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
+192.168.0.0    0.0.0.0         255.255.255.0   U     0      0        0 eth0.11
+0.0.0.0         192.168.0.15   0.0.0.0         UG    0      0        0 eth0.11
+ROUTE_N
+
+          do_stubs
+
+          @plugin.run
+        end
+  
+        it "finds the default interface by asking which iface has the default route" do
+          @plugin['network']["default_interface"].should == 'eth0.11'
+        end
+  
+        it "finds the default interface by asking which iface has the default route" do
+          @plugin['network']["default_gateway"].should == '192.168.0.15'
+        end
+      end
+    end
+  end
+
+  describe "for newer network features using iproute2 only" do
+    before do
+      File.stub(:exist?).with("/sbin/ip").and_return(true) # iproute2 only
+      do_stubs
+    end
+
+    it "completes the run" do
+      Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+      @plugin.run
+      @plugin['network'].should_not be_nil
+    end
+
+    it "finds the default inet6 interface if there's a inet6 default route" do
+      @plugin.run
+      @plugin['network']['default_inet6_interface'].should == 'eth0.11'
+    end
+
+    it "finds the default inet6 gateway if there's a inet6 default route" do
+      @plugin.run
+      @plugin['network']['default_inet6_gateway'].should == '1111:2222:3333:4444::1'
+    end
+
+    it "finds inet6 neighbours" do
+      @plugin.run
+      @plugin['network']['interfaces']['eth0.11']['neighbour_inet6']['1111:2222:3333:4444::1'].should == '00:1c:0e:12:34:56'
+    end
+
+    it "detects the ipv4 addresses of an ethernet interface with a crazy name" do
+      @plugin.run
+      @plugin['network']['interfaces']['foo:veth0@eth0']['addresses'].keys.should include('192.168.212.2')
+      @plugin['network']['interfaces']['foo:veth0@eth0']['addresses']['192.168.212.2']['netmask'].should == '255.255.255.0'
+      @plugin['network']['interfaces']['foo:veth0@eth0']['addresses']['192.168.212.2']['family'].should == 'inet'
+    end
+
+    it "generates a fake interface for ip aliases for backward compatibility" do
+      @plugin.run
+      @plugin['network']['interfaces']['eth0:5']['addresses'].keys.should include('192.168.5.1')
+      @plugin['network']['interfaces']['eth0:5']['addresses']['192.168.5.1']['netmask'].should == '255.255.255.0'
+      @plugin['network']['interfaces']['eth0:5']['addresses']['192.168.5.1']['family'].should == 'inet'
+    end
+
+    it "adds the vlan information of an interface" do
+      @plugin.run
+      @plugin['network']['interfaces']['eth0.11']['vlan']['id'].should == '11'
+      @plugin['network']['interfaces']['eth0.11']['vlan']['protocol'].should == '802.1Q'
+      @plugin['network']['interfaces']['eth0.11']['vlan']['flags'].should == [ 'REORDER_HDR' ]
+    end
+
+    it "adds the state of an interface" do
+      @plugin.run
+      @plugin['network']['interfaces']['eth0.11']['state'].should == 'up'
+    end
+
+    describe "when dealing with routes" do
+      it "adds routes" do
+        @plugin.run
+        @plugin['network']['interfaces']['eth0']['routes'].should include Mash.new( :destination => "10.116.201.0/24", :proto => "kernel", :family =>"inet" )
+        @plugin['network']['interfaces']['foo:veth0@eth0']['routes'].should include Mash.new( :destination => "192.168.212.0/24", :proto => "kernel", :src => "192.168.212.2", :family =>"inet", :scope => "link" )
+        @plugin['network']['interfaces']['eth0']['routes'].should include Mash.new( :destination => "fe80::/64", :metric => "256", :proto => "kernel", :family => "inet6" )
+        @plugin['network']['interfaces']['eth0.11']['routes'].should include Mash.new( :destination => "1111:2222:3333:4444::/64", :metric => "1024", :family => "inet6" )
+        @plugin['network']['interfaces']['eth0.11']['routes'].should include Mash.new( :destination => "default", :via => "1111:2222:3333:4444::1", :metric => "1024", :family => "inet6")
+      end
+
+      describe "when there isn't a source field in route entries " do
+        it "doesn't set ipaddress" do
+          @plugin.run
+          @plugin['ipaddress'].should be nil
+        end
+
+        it "doesn't set macaddress" do
+          @plugin.run
+          @plugin['macaddress'].should be nil
+        end
+
+        it "doesn't set ip6address" do
+          @plugin.run
+          @plugin['ip6address'].should be nil
+        end
+      end
+
+      describe "when there's a source field in the default route entry" do
+        before do
+          @linux_ip_route = <<-IP_ROUTE_SCOPE
+10.116.201.0/24 dev eth0  proto kernel
+192.168.5.0/24 dev eth0  proto kernel  src 192.168.5.1
+192.168.212.0/24 dev foo:veth0@eth0  proto kernel  src 192.168.212.2
+172.16.151.0/24 dev eth0  proto kernel  src 172.16.151.100
+192.168.0.0/24 dev eth0  proto kernel  src 192.168.0.2
+default via 10.116.201.1 dev eth0  src 10.116.201.76
+IP_ROUTE_SCOPE
+
+          @linux_ip_route_inet6 = <<-IP_ROUTE_SCOPE
+fe80::/64 dev eth0  proto kernel  metric 256
+fe80::/64 dev eth0.11  proto kernel  metric 256
+1111:2222:3333:4444::/64 dev eth0.11  metric 1024
+default via 1111:2222:3333:4444::1 dev eth0.11  metric 1024  src 1111:2222:3333:4444::3
+IP_ROUTE_SCOPE
+
+          do_stubs
+        end
+
+        it "completes the run" do
+          Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+          @plugin.run
+          @plugin['network'].should_not be_nil
+        end
+
+        it "sets ipaddress" do
+          @plugin.run
+          @plugin['ipaddress'].should == "10.116.201.76"
+        end
+
+        it "sets ip6address" do
+          @plugin.run
+          @plugin['ip6address'].should == "1111:2222:3333:4444::3"
+        end
+      end
+
+      describe "when there're several default routes" do
+        before do
+          @linux_ip_route = <<-IP_ROUTE_SCOPE
+10.116.201.0/24 dev eth0  proto kernel  src 10.116.201.76
+192.168.5.0/24 dev eth0  proto kernel  src 192.168.5.1
+192.168.212.0/24 dev foo:veth0@eth0  proto kernel  src 192.168.212.2
+172.16.151.0/24 dev eth0  proto kernel  src 172.16.151.100
+192.168.0.0/24 dev eth0  proto kernel  src 192.168.0.2
+default via 10.116.201.1 dev eth0 metric 10
+default via 10.116.201.254 dev eth0 metric 9
+IP_ROUTE_SCOPE
+
+          @linux_ip_route_inet6 = <<-IP_ROUTE_SCOPE
+fe80::/64 dev eth0  proto kernel  metric 256
+fe80::/64 dev eth0.11  proto kernel  metric 256
+1111:2222:3333:4444::/64 dev eth0.11  metric 1024  src 1111:2222:3333:4444::3
+default via 1111:2222:3333:4444::1 dev eth0.11  metric 1024
+default via 1111:2222:3333:4444::ffff dev eth0.11  metric 1023
+IP_ROUTE_SCOPE
+
+          do_stubs
+        end
+
+        it "completes the run" do
+          Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+          @plugin.run
+          @plugin['network'].should_not be_nil
+        end
+
+        it "sets default ipv4 interface and gateway" do
+          @plugin.run
+          @plugin['network']['default_interface'].should == 'eth0'
+          @plugin['network']['default_gateway'].should == '10.116.201.254'
+        end
+
+        it "sets default ipv6 interface and gateway" do
+          @plugin.run
+          @plugin['network']['default_inet6_interface'].should == 'eth0.11'
+          @plugin['network']['default_inet6_gateway'].should == '1111:2222:3333:4444::ffff'
+        end
+      end
+
+      describe "when there're a mixed setup of routes that could be used to set ipaddress" do
+        before do
+          @linux_ip_route = <<-IP_ROUTE_SCOPE
+10.116.201.0/24 dev eth0  proto kernel  src 10.116.201.76
+192.168.5.0/24 dev eth0  proto kernel  src 192.168.5.1
+192.168.212.0/24 dev foo:veth0@eth0  proto kernel  src 192.168.212.2
+172.16.151.0/24 dev eth0  proto kernel  src 172.16.151.100
+192.168.0.0/24 dev eth0  proto kernel  src 192.168.0.2
+default via 10.116.201.1 dev eth0 metric 10
+default via 10.116.201.254 dev eth0 metric 9 src 10.116.201.74
+IP_ROUTE_SCOPE
+
+          @linux_ip_route_inet6 = <<-IP_ROUTE_SCOPE
+fe80::/64 dev eth0  proto kernel  metric 256
+fe80::/64 dev eth0.11  proto kernel  metric 256
+1111:2222:3333:4444::/64 dev eth0.11  metric 1024  src 1111:2222:3333:4444::3
+default via 1111:2222:3333:4444::1 dev eth0.11  metric 1024
+default via 1111:2222:3333:4444::ffff dev eth0.11  metric 1023 src 1111:2222:3333:4444::2
+IP_ROUTE_SCOPE
+
+          do_stubs
+        end
+
+        it "completes the run" do
+          Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+          @plugin.run
+          @plugin['network'].should_not be_nil
+        end
+
+        it "sets ipaddress" do
+          @plugin.run
+          @plugin["ipaddress"].should == "10.116.201.74"
+        end
+
+        it "sets ip6address" do
+          @plugin.run
+          @plugin["ip6address"].should == "1111:2222:3333:4444::2"
+        end
+      end
+
+      describe "when there's a source field in a local route entry " do
+        before do
+          @linux_ip_route = <<-IP_ROUTE_SCOPE
+10.116.201.0/24 dev eth0  proto kernel  src 10.116.201.76
+192.168.5.0/24 dev eth0  proto kernel  src 192.168.5.1
+192.168.212.0/24 dev foo:veth0@eth0  proto kernel  src 192.168.212.2
+172.16.151.0/24 dev eth0  proto kernel  src 172.16.151.100
+192.168.0.0/24 dev eth0  proto kernel  src 192.168.0.2
+default via 10.116.201.1 dev eth0
+IP_ROUTE_SCOPE
+
+          @linux_ip_route_inet6 = <<-IP_ROUTE_SCOPE
+fe80::/64 dev eth0  proto kernel  metric 256
+fe80::/64 dev eth0.11  proto kernel  metric 256
+1111:2222:3333:4444::/64 dev eth0.11  metric 1024  src 1111:2222:3333:4444::3
+default via 1111:2222:3333:4444::1 dev eth0.11  metric 1024
+IP_ROUTE_SCOPE
+
+          do_stubs
+        end
+
+        it "completes the run" do
+          Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+          @plugin.run
+          @plugin['network'].should_not be_nil
+        end
+
+        it "sets ipaddress" do
+          @plugin.run
+          @plugin['ipaddress'].should == "10.116.201.76"
+        end
+
+        describe "when about to set macaddress" do
+          it "sets macaddress" do
+            @plugin.run
+            @plugin['macaddress'].should == "12:31:3D:02:BE:A2"
+          end
+
+          describe "when then interface has the NOARP flag" do
+            before do
+              @linux_ip_route = <<-IP_ROUTE
+10.118.19.1 dev tun0 proto kernel  src 10.118.19.39
+default via 172.16.19.1 dev tun0
+IP_ROUTE
+
+              do_stubs
+            end
+
+            it "completes the run" do
+              Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+              @plugin.run
+              @plugin['network'].should_not be_nil
+            end
+
+            it "doesn't set macaddress" do
+              @plugin.run
+              @plugin['macaddress'].should be_nil
+            end
+          end
+        end
+
+        it "sets ip6address" do
+          @plugin.run
+          @plugin['ip6address'].should == "1111:2222:3333:4444::3"
+        end
+      end
+
+      describe "with a link level default route" do
+        before do
+          @linux_ip_route = <<-IP_ROUTE
+default dev venet0 scope link
+IP_ROUTE
+
+          do_stubs
+        end
+
+        it "completes the run" do
+          Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+          @plugin.run
+          @plugin['network'].should_not be_nil
+        end
+
+        it "doesn't set ipaddress" do
+          @plugin.run
+          @plugin['ipaddress'].should be_nil
+        end
+      end
+
+      describe "when not having a global scope ipv6 address" do
+        before do
+          @linux_ip_route_inet6 = <<-IP_ROUTE_SCOPE
+fe80::/64 dev eth0  proto kernel  metric 256
+default via fe80::21c:eff:fe12:3456 dev eth0.153  src fe80::2e0:81ff:fe2b:48e7  metric 1024
+IP_ROUTE_SCOPE
+
+          do_stubs
+        end
+
+        it "completes the run" do
+          Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+          @plugin.run
+          @plugin['network'].should_not be_nil
+        end
+
+        it "doesn't set ip6address" do
+          @plugin.run
+          @plugin['ip6address'].should be_nil
+        end
+
+      end
+
+      describe "with no default route" do
+        before do
+          @linux_ip_route = <<-IP_ROUTE
+10.116.201.0/24 dev eth0  proto kernel  src 10.116.201.76
+192.168.5.0/24 dev eth0  proto kernel  src 192.168.5.1
+192.168.212.0/24 dev foo:veth0@eth0  proto kernel  src 192.168.212.2
+172.16.151.0/24 dev eth0  proto kernel  src 172.16.151.100
+192.168.0.0/24 dev eth0  proto kernel  src 192.168.0.2
+IP_ROUTE
+
+          @linux_ip_route_inet6 = <<-IP_ROUTE
+fe80::/64 dev eth0  proto kernel  metric 256
+fe80::/64 dev eth0.11  proto kernel  metric 256
+1111:2222:3333:4444::/64 dev eth0.11  metric 1024  src 1111:2222:3333:4444::3
+IP_ROUTE
+
+          do_stubs
+        end
+
+        it "completes the run" do
+          Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+          @plugin.run
+          @plugin['network'].should_not be_nil
+        end
+
+        it "doesn't set ipaddress" do
+          @plugin.run
+          @plugin['ipaddress'].should be_nil
+        end
+
+        it "doesn't set ip6address" do
+          @plugin.run
+          @plugin['ip6address'].should be_nil
+        end
+      end
+
+      describe "with irrelevant routes (container setups)" do
+        before do
+          @linux_ip_route = <<-IP_ROUTE
+10.116.201.0/26 dev eth0 proto kernel  src 10.116.201.39
+10.116.201.0/26 dev if4 proto kernel  src 10.116.201.45
+10.118.19.0/26 dev eth0 proto kernel  src 10.118.19.39
+10.118.19.0/26 dev if5 proto kernel  src 10.118.19.45
+default via 10.116.201.1 dev eth0  src 10.116.201.99
+IP_ROUTE
+
+          @linux_ip_route_inet6 = <<-IP_ROUTE
+fe80::/64 dev eth0  proto kernel  metric 256
+fe80::/64 dev eth0.11  proto kernel  metric 256
+1111:2222:3333:4444::/64 dev eth0.11  metric 1024 src 1111:2222:3333:4444::FFFF:2
+default via 1111:2222:3333:4444::1 dev eth0.11  metric 1024
+IP_ROUTE
+
+          do_stubs
+        end
+
+        it "completes the run" do
+          Ohai::Log.should_not_receive(:debug).with(/Plugin linux::network threw exception/)
+          @plugin.run
+          @plugin['network'].should_not be_nil
+        end
+
+        it "doesn't add bogus routes" do
+          @plugin.run
+          @plugin['network']['interfaces']['eth0']['routes'].should_not include Mash.new( :destination => "10.116.201.0/26", :proto => "kernel", :family => "inet", :via => "10.116.201.39" )
+          @plugin['network']['interfaces']['eth0']['routes'].should_not include Mash.new( :destination => "10.118.19.0/26", :proto => "kernel", :family => "inet", :via => "10.118.19.39" )
+          @plugin['network']['interfaces']['eth0']['routes'].should_not include Mash.new( :destination => "1111:2222:3333:4444::/64", :family => "inet6", :metric => "1024" )
+        end
+
+        it "doesn't set ipaddress" do
+          @plugin.run
+          @plugin['ipaddress'].should be_nil
+        end
+
+        it "doesn't set ip6address" do
+          @plugin.run
+          @plugin['ip6address'].should be_nil
+        end
+      end
+
+      # This should never happen in the real world.
+      describe "when encountering a surprise interface" do
+        before do
+          @linux_ip_route = <<-IP_ROUTE
+192.168.122.0/24 dev virbr0  proto kernel  src 192.168.122.1
+IP_ROUTE
+          do_stubs
+        end
+        
+        it "logs a message and skips previously unseen interfaces in 'ip route show'" do
+          Ohai::Log.should_receive(:debug).with("Skipping previously unseen interface from 'ip route show': virbr0").once
+          Ohai::Log.stub(:debug) # Catches the 'Loading plugin network' type messages
+          @plugin.run
+        end
+      end
+    end
+  end
+
+end