[etch-devel] SF.net SVN: etch:[265] trunk/etchserver-samples/source

[<jh...@us...>]

Revision: 265
          http://etch.svn.sourceforge.net/etch/?rev=265&view=rev
Author:   jheiss
Date:     2011-03-11 21:27:00 +0000 (Fri, 11 Mar 2011)

Log Message:
-----------
Add my rc.static-routes and rc.virtfs scripts and associated
infrastructure for managing static routes and virtual interfaces on
various platforms.

Added Paths:
-----------
    trunk/etchserver-samples/source/etc/network/
    trunk/etchserver-samples/source/etc/network/if-up.d/
    trunk/etchserver-samples/source/etc/network/if-up.d/ifup-local/
    trunk/etchserver-samples/source/etc/network/if-up.d/ifup-local/config.xml
    trunk/etchserver-samples/source/etc/network/if-up.d/ifup-local/ifup-local
    trunk/etchserver-samples/source/etc/rc.static-routes/
    trunk/etchserver-samples/source/etc/rc.static-routes/config.xml
    trunk/etchserver-samples/source/etc/rc.static-routes/rc.static-routes
    trunk/etchserver-samples/source/etc/rc.virtifs/
    trunk/etchserver-samples/source/etc/rc.virtifs/config.xml
    trunk/etchserver-samples/source/etc/rc.virtifs/rc.virtifs
    trunk/etchserver-samples/source/etc/rc2.d/S70static-routes/
    trunk/etchserver-samples/source/etc/rc2.d/S70static-routes/S70static-routes
    trunk/etchserver-samples/source/etc/rc2.d/S70static-routes/config.xml
    trunk/etchserver-samples/source/etc/static-routes/
    trunk/etchserver-samples/source/etc/static-routes/config.xml
    trunk/etchserver-samples/source/etc/static-routes/static-routes.etchconf
    trunk/etchserver-samples/source/etc/static-routes/static-routes.group1
    trunk/etchserver-samples/source/etc/static-routes/static-routes.group2
    trunk/etchserver-samples/source/etc/static-routes/static-routes.script
    trunk/etchserver-samples/source/etc/virtifs/
    trunk/etchserver-samples/source/etc/virtifs/config.xml
    trunk/etchserver-samples/source/etc/virtifs/virtifs.etchconf
    trunk/etchserver-samples/source/etc/virtifs/virtifs.script
    trunk/etchserver-samples/source/sbin/
    trunk/etchserver-samples/source/sbin/ifup-local/
    trunk/etchserver-samples/source/sbin/ifup-local/config.xml
    trunk/etchserver-samples/source/sbin/ifup-local/ifup-local

Added: trunk/etchserver-samples/source/etc/network/if-up.d/ifup-local/config.xml
===================================================================
--- trunk/etchserver-samples/source/etc/network/if-up.d/ifup-local/config.xml	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/network/if-up.d/ifup-local/config.xml	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,11 @@
+<config>
+	<file>
+		<!-- Shell script -->
+		<perms>555</perms>
+		<warning_on_second_line/>
+		<source>
+			<plain operatingsystem="/Debian|Ubuntu/">ifup-local</plain>
+		</source>
+	</file>
+</config>
+

Added: trunk/etchserver-samples/source/etc/network/if-up.d/ifup-local/ifup-local
===================================================================
--- trunk/etchserver-samples/source/etc/network/if-up.d/ifup-local/ifup-local	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/network/if-up.d/ifup-local/ifup-local	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+# Setup any virtual interfaces needed on this system
+/etc/rc.virtifs
+# Setup any custom routing needed on this system
+/etc/rc.static-routes
+

Added: trunk/etchserver-samples/source/etc/rc.static-routes/config.xml
===================================================================
--- trunk/etchserver-samples/source/etc/rc.static-routes/config.xml	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/rc.static-routes/config.xml	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,16 @@
+<config>
+	<file>
+		<!-- Shell script -->
+		<perms>555</perms>
+		<warning_on_second_line/>
+		<source>
+			<plain>rc.static-routes</plain>
+		</source>
+	</file>
+	<test>
+		<exec kernel="Linux">ping -c1 -W20 -q etch</exec>
+		<exec operatingsystem="Solaris">ping etch 20</exec>
+		<exec operatingsystem="FreeBSD">ping -c1 -t20 -q etch</exec>
+	</test>
+</config>
+

Added: trunk/etchserver-samples/source/etc/rc.static-routes/rc.static-routes
===================================================================
--- trunk/etchserver-samples/source/etc/rc.static-routes/rc.static-routes	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/rc.static-routes/rc.static-routes	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,445 @@
+#!/usr/bin/perl -w
+##############################################################################
+# This script controls routing on systems which need some form of static
+# routing configuration.
+##############################################################################
+
+$ENV{PATH} = '/bin:/sbin:/usr/bin:/usr/sbin';
+
+my $OS = `uname -s`;
+chomp $OS;
+
+my $ROUTE_CONFIG = "/etc/static-routes";
+
+# Silently exit if the route config file doesn't exist, that's an
+# indication that this machine doesn't need any special routing.
+exit if (! -f $ROUTE_CONFIG);
+
+# First clean out any existing static routes
+clean_routing_table();
+
+# Then add the desired static routes
+open(RC, "<$ROUTE_CONFIG") || die;
+while(<RC>)
+{
+	next if (/^\s*#/);  # Skip comments
+	next if (/^\s*$/);  # And blank lines
+
+	# Lines in the file contain two fields, seperated by whitespace.
+	# The first field is a destination (network and netmask) in
+	# nnn.nnn.nnn.nnn/xx format.
+	# The second field is either a gateway IP, or a network
+	# interface name.
+	# Examples:
+	# 10.0.0.0/4	10.8.90.1
+	# 224.0.0.0/4	eth0
+
+	my ($dest, $via) = split;
+	if ($dest && $via)
+	{
+		if (($dest =~ /\//) || ($dest eq "default"))
+		{
+			if ($via =~ /^\d+\.\d+\.\d+\.\d+$/)
+			{
+				add_route_via_gateway($dest, $via);
+			}
+			else
+			{
+				add_route_via_interface($dest, $via);
+			}
+		}
+		else
+		{
+			if ($via =~ /^\d+\.\d+\.\d+\.\d+$/)
+			{
+				add_host_route_via_gateway($dest, $via);
+			}
+			else
+			{
+				add_host_route_via_interface($dest, $via);
+			}
+		}
+	}
+}
+close(RC);
+
+#
+# Subroutines
+#
+
+sub clean_routing_table
+{
+	# Look through the routing table for things that look like
+	# static routes and remove them.
+	open(NETSTAT, 'netstat -rn |') || die;
+	while(<NETSTAT>)
+	{
+		if ($OS eq 'Linux')
+		{
+			my ($dest, $gw, $mask,
+				$flags, $mss, $window, $irtt, $if) = split;
+			# On Linux it seems that if the Gateway field
+			# is an IP address but isn't 0.0.0.0 then the
+			# route is static.
+			# Except for routes specified by interface
+			# instead of gateway.  It seems impossible to
+			# distinguish those in a general sense, so we
+			# cheat and make an exception for our multicast
+			# route.
+			if ($gw &&
+				$gw =~ /^\d+\.\d+\.\d+\.\d+$/ &&
+				$gw ne '0.0.0.0')
+			{
+				if ($flags && $flags =~ /H/)
+				{
+					delete_host_route_via_gateway($dest, $gw);
+				}
+				else
+				{
+					delete_route_via_gateway($dest, $gw, $mask);
+				}
+			}
+			elsif ($dest && $dest eq '224.0.0.0')
+			{
+				if ($flags && $flags =~ /H/)
+				{
+					delete_host_route_via_interface($dest, $if, $mask);
+				}
+				else
+				{
+					delete_route_via_interface($dest, $if, $mask);
+				}
+			}
+				
+		}
+		elsif ($OS eq 'SunOS')
+		{
+			my ($dest, $gw, $flags, $ref, $use, $if) = split;
+			# On Solaris it seems that if the Interface
+			# field is empty then the route is static.
+			# Except for routes specified by interface
+			# instead of gateway.  It seems impossible to
+			# distinguish those in a general sense, so we
+			# cheat and make an exception for our multicast
+			# route.
+			if ($gw && $gw =~ /^\d+\.\d+\.\d+\.\d+$/ && ! $if)
+			{
+				if ($flags && $flags =~ /H/)
+				{
+					delete_host_route_via_gateway($dest, $gw);
+				}
+				else
+				{
+					# There doesn't appear to be a way to
+					# get Solaris to show you the netmask
+					# associated with existing routes, but
+					# you need the netmask to remove the
+					# routes.  So guess at the netmask for
+					# standard routes in our environment and
+					# hope for the best.
+					if ($dest =~ /^10.0/)
+					{
+						$dest .= "/8";
+					}
+					elsif ($dest =~ /^10./)
+					{
+						$dest .= "/16";
+					}
+					elsif ($dest =~ /^172.16/)
+					{
+						$dest .= "/12";
+					}
+					elsif ($dest =~ /^192.168/)
+					{
+						$dest .= "/16";
+					}
+					elsif ($dest =~ /^224/)
+					{
+						$dest .= "/4";
+					}
+
+					delete_route_via_gateway($dest, $gw);
+				}
+			}
+			elsif ($dest && $dest eq '224.0.0.0')
+			{
+				if ($flags && $flags =~ /H/)
+				{
+					delete_host_route_via_interface($dest, $if);
+				}
+				else
+				{
+					# Guess at the netmask here too
+					$dest .= "/4";
+
+					delete_route_via_interface($dest, $if);
+				}
+			}
+		}
+		elsif ($OS eq 'FreeBSD')
+		{
+			my ($dest, $gw, $flags, $ref, $use, $if) = split;
+			# On FreeBSD if the 'Flags' field contains a 'S'
+			# then the route is static.  How civilized.
+			if ($flags && $flags =~ /S/)
+			{
+				if ($gw =~ /^\d+\.\d+\.\d+\.\d+$/)
+				{
+					if ($flags && $flags =~ /H/)
+					{
+						delete_host_route_via_gateway($dest, $gw);
+					}
+					else
+					{
+						delete_route_via_gateway($dest, $gw);
+					}
+				}
+				else
+				{
+					if ($flags && $flags =~ /H/)
+					{
+						delete_host_route_via_interface($dest, $if);
+					}
+					else
+					{
+						delete_route_via_interface($dest, $if);
+					}
+				}
+			}
+		}
+	}
+	close(NETSTAT);
+}
+
+sub add_route_via_gateway
+{
+	# We expect that the netmask for the route will be attached to
+	# the destination using the /xx format.
+	my ($dest, $gw) = @_;
+
+	if ($OS eq 'Linux')
+	{
+		system("route add -net $dest gw $gw");
+	}
+	elsif ($OS eq 'SunOS')
+	{
+		system("route add -net $dest $gw");
+	}
+	elsif ($OS eq 'FreeBSD')
+	{
+		system("route add -net $dest $gw");
+	}
+}
+
+sub add_host_route_via_gateway
+{
+	# We expect that the netmask for the route will be attached to
+	# the destination using the /xx format.
+	my ($dest, $gw) = @_;
+
+	if ($OS eq 'Linux')
+	{
+		system("route add -host $dest gw $gw");
+	}
+	elsif ($OS eq 'SunOS')
+	{
+		system("route add -host $dest $gw");
+	}
+	elsif ($OS eq 'FreeBSD')
+	{
+		system("route add -host $dest $gw");
+	}
+}
+
+sub add_route_via_interface
+{
+	# We expect that the netmask for the route will be attached to
+	# the destination using the /xx format.
+	my ($dest, $if) = @_;
+
+	if ($OS eq 'Linux')
+	{
+		system("route add -net $dest dev $if");
+	}
+	elsif ($OS eq 'SunOS')
+	{
+		my $ifip;
+		# Solaris is kinda wacky in that interface routes have
+		# to be added/delete using the IP of the interface, not
+		# the name of the interface.
+		open(IFCONFIG, "ifconfig $if |") || die;
+		while(<IFCONFIG>)
+		{
+			if (/inet (\d+\.\d+\.\d+\.\d+)/)
+			{
+				$ifip = $1;
+			}
+		}
+		close(IFCONFIG);
+
+		if ($ifip)
+		{
+			system("route add -net $dest -interface $ifip");
+		}
+	}
+	elsif ($OS eq 'FreeBSD')
+	{
+		system("route add -net $dest -interface $if");
+	}
+}
+
+sub add_host_route_via_interface
+{
+	# We expect that the netmask for the route will be attached to
+	# the destination using the /xx format.
+	my ($dest, $if) = @_;
+
+	if ($OS eq 'Linux')
+	{
+		system("route add -host $dest dev $if");
+	}
+	elsif ($OS eq 'SunOS')
+	{
+		my $ifip;
+		# Solaris is kinda wacky in that interface routes have
+		# to be added/delete using the IP of the interface, not
+		# the name of the interface.
+		open(IFCONFIG, "ifconfig $if |") || die;
+		while(<IFCONFIG>)
+		{
+			if (/inet (\d+\.\d+\.\d+\.\d+)/)
+			{
+				$ifip = $1;
+			}
+		}
+		close(IFCONFIG);
+
+		if ($ifip)
+		{
+			system("route add -host $dest -interface $ifip");
+		}
+	}
+	elsif ($OS eq 'FreeBSD')
+	{
+		system("route add -host $dest -interface $if");
+	}
+}
+
+sub delete_route_via_gateway
+{
+	# The mask is only supplied for Linux systems, on Solaris and
+	# FreeBSD the mask is attached in /xx format to the destination
+	# This is because netstat -rn on Linux reports the netmask
+	# associated with each route in a seperate column, rather than
+	# attaching it to the network number with the /xx format.
+	# And I'm too lazy to convert it.
+	my ($dest, $gw, $mask) = @_;
+
+	if ($OS eq 'Linux')
+	{
+		system("route del -net $dest netmask $mask gw $gw");
+	}
+	elsif ($OS eq 'SunOS')
+	{
+		system("route delete -net $dest $gw");
+	}
+	elsif ($OS eq 'FreeBSD')
+	{
+		system("route delete -net $dest $gw");
+	}
+}
+
+sub delete_host_route_via_gateway
+{
+	my ($dest, $gw) = @_;
+
+	if ($OS eq 'Linux')
+	{
+		system("route del -host $dest gw $gw");
+	}
+	elsif ($OS eq 'SunOS')
+	{
+		system("route delete -host $dest $gw");
+	}
+	elsif ($OS eq 'FreeBSD')
+	{
+		system("route delete -host $dest $gw");
+	}
+}
+
+sub delete_route_via_interface
+{
+	# The mask is only supplied for Linux systems, on Solaris and
+	# FreeBSD the mask is attached in /xx format to the destination.
+	# This is because netstat -rn on Linux reports the netmask
+	# associated with each route in a seperate column, rather than
+	# attaching it to the network number with the /xx format.
+	# And I'm too lazy to convert it.
+	my ($dest, $if, $mask) = @_;
+
+	if ($OS eq 'Linux')
+	{
+		system("route del -net $dest netmask $mask dev $if");
+	}
+	elsif ($OS eq 'SunOS')
+	{
+		my $ifip;
+		# Solaris is kinda wacky in that interface routes have
+		# to be added/delete using the IP of the interface, not
+		# the name of the interface.
+		open(IFCONFIG, "ifconfig $if |") || die;
+		while(<IFCONFIG>)
+		{
+			if (/inet (\d+\.\d+\.\d+\.\d+)/)
+			{
+				$ifip = $1;
+			}
+		}
+		close(IFCONFIG);
+
+		if ($ifip)
+		{
+			system("route delete -net $dest -interface $ifip");
+		}
+	}
+	elsif ($OS eq 'FreeBSD')
+	{
+		system("route delete -net $dest -interface $if");
+	}
+}
+
+sub delete_host_route_via_interface
+{
+	my ($dest, $if) = @_;
+
+	if ($OS eq 'Linux')
+	{
+		system("route del -host $dest dev $if");
+	}
+	elsif ($OS eq 'SunOS')
+	{
+		my $ifip;
+		# Solaris is kinda wacky in that interface routes have
+		# to be added/delete using the IP of the interface, not
+		# the name of the interface.
+		open(IFCONFIG, "ifconfig $if |") || die;
+		while(<IFCONFIG>)
+		{
+			if (/inet (\d+\.\d+\.\d+\.\d+)/)
+			{
+				$ifip = $1;
+			}
+		}
+		close(IFCONFIG);
+
+		if ($ifip)
+		{
+			system("route delete -host $dest -interface $ifip");
+		}
+	}
+	elsif ($OS eq 'FreeBSD')
+	{
+		system("route delete -host $dest -interface $if");
+	}
+}
+

Added: trunk/etchserver-samples/source/etc/rc.virtifs/config.xml
===================================================================
--- trunk/etchserver-samples/source/etc/rc.virtifs/config.xml	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/rc.virtifs/config.xml	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,10 @@
+<config>
+	<file>
+		<perms>555</perms>
+		<warning_on_second_line/>
+		<source>
+			<plain>rc.virtifs</plain>
+		</source>
+	</file>
+</config>
+

Added: trunk/etchserver-samples/source/etc/rc.virtifs/rc.virtifs
===================================================================
--- trunk/etchserver-samples/source/etc/rc.virtifs/rc.virtifs	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/rc.virtifs/rc.virtifs	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,80 @@
+#!/usr/bin/ruby -w
+
+require 'facter'
+require 'resolv'
+require 'ipaddr'
+
+ENV['PATH'] = '/bin:/sbin:/usr/bin:/usr/sbin'
+
+VIRTIFS_CONFIG = '/etc/virtifs'
+
+# Silently exit if the config file doesn't exist, that's an indication
+# that this machine doesn't need any virtual interfaces configured.
+exit if !File.exist?(VIRTIFS_CONFIG)
+
+# Tell facter to load everything, otherwise it tries to dynamically
+# load the individual fact libraries using a very broken mechanism
+Facter.loadfacts
+
+# Prepare the configuration of our virtual interfaces
+virtcounters = {}
+virtifs = {}
+IO.foreach(VIRTIFS_CONFIG) do |line|
+	line.chomp!
+	next if line =~ /^\s*#/  # Skip comments
+	next if line =~ /^\s*$/  # And blank lines
+	hostname, cachedip = line.split
+
+	# Try to look up the IP for that hostname
+	res = Resolv::DNS::new()
+	ip = nil
+	begin
+		addr = res.getaddress(hostname)
+		ip = addr.to_s
+	rescue Resolv::ResolvError
+		ip = cachedip
+	end
+	ipaddr = IPAddr.new(ip)
+
+	# Find the physical interface to which this virtual interface should
+	# belong
+	Facter['interfaces'].value.split(',').each do |nic|
+		if nic !~ /:/ && nic !~ /__tmp/
+			ifip = Facter["ipaddress_#{nic}"].value
+			next if ifip.nil?
+			mask = Facter["netmask_#{nic}"].value
+			subnetaddr = IPAddr.new("#{ifip}/#{mask}")
+			if subnetaddr.include?(ipaddr)
+				# Calculate the virtual interface name
+				virtif = nic + ':'
+				if virtcounters.has_key?(nic)
+					virtcounters[nic] += 1
+				else
+					virtcounters[nic] = 0
+				end
+				virtif << virtcounters[nic].to_s
+				# Store the interface data
+				virtifs[virtif] = { 'ip' => ip, 'mask' => mask }
+				break
+			end
+		end
+	end
+end
+
+# Clean up any existing virtual interfaces
+Facter['interfaces'].value.split(',').each do |nic|
+	if nic =~ /:/
+		puts "ifconfig #{nic} down"
+		system "ifconfig #{nic} down"
+	end
+end
+
+# Activate our virtual interface configuration
+virtifs.each do |virtif, virtifdata|
+	ip = virtifdata['ip']
+	mask = virtifdata['mask']
+
+	puts "ifconfig #{virtif} #{ip} netmask #{mask}"
+	system "ifconfig #{virtif} #{ip} netmask #{mask}"
+end
+

Added: trunk/etchserver-samples/source/etc/rc2.d/S70static-routes/S70static-routes
===================================================================
--- trunk/etchserver-samples/source/etc/rc2.d/S70static-routes/S70static-routes	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/rc2.d/S70static-routes/S70static-routes	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Solaris assumes init scripts are shell scripts and explicity calls
+# them via /sbin/sh rather than just executing them.  rc.static-routes
+# is a Perl script, so this is a simple wrapper around it to make things
+# work properly.
+
+/etc/rc.static-routes "$@"
+

Added: trunk/etchserver-samples/source/etc/rc2.d/S70static-routes/config.xml
===================================================================
--- trunk/etchserver-samples/source/etc/rc2.d/S70static-routes/config.xml	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/rc2.d/S70static-routes/config.xml	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,10 @@
+<config>
+	<file>
+		<perms>555</perms>
+		<warning_on_second_line/>
+		<source>
+			<plain operatingsystem="Solaris">S70static-routes</plain>
+		</source>
+	</file>
+</config>
+

Added: trunk/etchserver-samples/source/etc/static-routes/config.xml
===================================================================
--- trunk/etchserver-samples/source/etc/static-routes/config.xml	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/static-routes/config.xml	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,20 @@
+<config>
+	<depend>/etc/rc.static-routes</depend>
+
+	<file>
+		<source>
+			<script>static-routes.script</script>
+		</source>
+	</file>
+
+	<post>
+		<exec>/etc/rc.static-routes</exec>
+	</post>
+
+	<test>
+		<exec kernel="Linux">ping -c3 -W20 -q etch</exec>
+		<exec operatingsystem="Solaris">sleep 3 ; ping etch 20</exec>
+		<exec operatingsystem="FreeBSD">ping -c3 -t20 -q etch</exec>
+	</test>
+</config>
+

Added: trunk/etchserver-samples/source/etc/static-routes/static-routes.etchconf
===================================================================
--- trunk/etchserver-samples/source/etc/static-routes/static-routes.etchconf	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/static-routes/static-routes.etchconf	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,4 @@
+# nodegroup			# filename
+nodegroup1			static-routes.group1
+nodegroup2			static-routes.group2
+

Added: trunk/etchserver-samples/source/etc/static-routes/static-routes.group1
===================================================================
--- trunk/etchserver-samples/source/etc/static-routes/static-routes.group1	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/static-routes/static-routes.group1	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,9 @@
+# You might have multiple clients that need a similar set of routes, but
+# those clients are on multiple subnets and they need to use the correct
+# gateway for their subnet.  No worries, just list them all here and
+# static-routes.script will only add the routes that are reachable by
+# any given client.
+default         10.1.8.10
+10.0.0.0/8      10.1.8.1
+default         10.1.10.10
+10.0.0.0/8      10.1.10.1

Added: trunk/etchserver-samples/source/etc/static-routes/static-routes.group2
===================================================================
--- trunk/etchserver-samples/source/etc/static-routes/static-routes.group2	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/static-routes/static-routes.group2	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,10 @@
+# You might have multiple clients that need a similar set of routes, but
+# those clients are on multiple subnets and they need to use the correct
+# gateway for their subnet.  No worries, just list them all here and
+# static-routes.script will only add the routes that are reachable by
+# any given client.
+default		10.1.10.1
+default         10.1.12.1
+default         10.3.12.1
+default		10.3.14.1
+224.0.0.0/4     eth1

Added: trunk/etchserver-samples/source/etc/static-routes/static-routes.script
===================================================================
--- trunk/etchserver-samples/source/etc/static-routes/static-routes.script	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/static-routes/static-routes.script	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,76 @@
+#!/usr/bin/ruby
+
+require 'ipaddr'
+
+# Given an IP return true if the IP is in the same subnet as any of the
+# interfaces on this machine
+def directly_reachable(target)
+  number_of_interfaces_checked = 0
+  @facts['interfaces'].split(',').each do |inf|
+    if @facts["ipaddress_#{inf}"] && @facts["netmask_#{inf}"]
+      number_of_interfaces_checked += 1
+      infaddr = IPAddr.new(@facts["ipaddress_#{inf}"] + '/' + @facts["netmask_#{inf}"])
+      return true if infaddr.include?(IPAddr.new(target))
+    end
+  end
+  if number_of_interfaces_checked > 0
+    return false
+  else
+    # If Facter failed for some reason and didn't send us any interface
+    # data we don't want to have etch unconfigure/misconfigure the
+    # networking on the client
+    abort "No interface addresses/netmasks received"
+  end
+end
+
+# Filters the supplied routing config file, leaving only routes which have
+# a destination directly reachable via one of the client's interfaces.  This
+# allows us to put the routes for all subnets in one file, rather than
+# maintaining a seperate route file for each subnet.  This isn't strictly
+# necessary on some platforms, as on those platforms attempting to add a
+# route to an unreachable destination will fail.  However, there are
+# platforms that will let you add routes to unreachable destinations, and
+# packets taking that route silently disappear.
+def filter(file)
+  output = ''
+  IO.foreach(file) do |line|
+    next if line =~ /^\s*$/  # Skip blank lines
+    next if line =~ /^\s*#/  # Skip comments
+    
+    dest, via = line.split
+    if via =~ /^\d+\.\d+\.\d+\.\d+$/ && directly_reachable(via)
+      output << line
+    else
+      @facts['interfaces'].split(',').each do |inf|
+        if via == inf
+          output << line
+        end
+      end
+    end
+  end
+  
+  if !output.empty?
+    output.insert(0, "# Entries from #{file}\n")
+  end
+  output
+end
+
+test_contents = []
+IO.foreach('static-routes.etchconf') do |line|
+  line.chomp!
+  next if line =~ /^\s*$/  # Skip blank lines
+  next if line =~ /^\s*#/  # Skip comments
+
+  group, file = line.split(' ', 2)
+  if @groups.include?(group)
+    test_contents << filter(file)
+  end
+end
+
+if !test_contents.empty?
+  testpass = ''
+  test_contents.each { |lines| lines.each { |line| dest, via = line.split ; (testpass = true) if dest == 'default' }}
+  if testpass == true
+    test_contents.each { |addme| @contents << addme }
+  end
+end

Added: trunk/etchserver-samples/source/etc/virtifs/config.xml
===================================================================
--- trunk/etchserver-samples/source/etc/virtifs/config.xml	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/virtifs/config.xml	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,14 @@
+<config>
+	<depend>/etc/rc.virtifs</depend>
+
+	<file>
+		<source>
+			<script>virtifs.script</script>
+		</source>
+	</file>
+
+	<post>
+		<exec>/etc/rc.virtifs</exec>
+	</post>
+</config>
+

Added: trunk/etchserver-samples/source/etc/virtifs/virtifs.etchconf
===================================================================
--- trunk/etchserver-samples/source/etc/virtifs/virtifs.etchconf	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/virtifs/virtifs.etchconf	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,4 @@
+# Node group		Virtual IP or hostname
+nodegroup1			10.1.2.3
+nodegroup2			virtual1.example.com
+

Added: trunk/etchserver-samples/source/etc/virtifs/virtifs.script
===================================================================
--- trunk/etchserver-samples/source/etc/virtifs/virtifs.script	                        (rev 0)
+++ trunk/etchserver-samples/source/etc/virtifs/virtifs.script	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,21 @@
+#!/usr/bin/ruby
+
+require 'resolv'
+
+IO.foreach('virtifs.etchconf') do |line|
+	line.chomp!
+	next if line =~ /^\s*$/  # Skip blank lines
+	next if line =~ /^\s*#/  # Skip comments
+
+	group, hostname = line.split
+	if @groups.include?(group)
+		res = Resolv::DNS::new()
+		addr = res.getaddress(hostname)
+		if !addr
+				abort "DNS lookup of virtual interface #{hostname} failed"
+		end
+		ip = addr.to_s
+		@contents << hostname << ' ' << ip << "\n"
+	end
+end
+

Added: trunk/etchserver-samples/source/sbin/ifup-local/config.xml
===================================================================
--- trunk/etchserver-samples/source/sbin/ifup-local/config.xml	                        (rev 0)
+++ trunk/etchserver-samples/source/sbin/ifup-local/config.xml	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,11 @@
+<config>
+	<file>
+		<!-- Shell script -->
+		<perms>555</perms>
+		<warning_on_second_line/>
+		<source>
+			<plain operatingsystem="/RedHat|CentOS/">ifup-local</plain>
+		</source>
+	</file>
+</config>
+

Added: trunk/etchserver-samples/source/sbin/ifup-local/ifup-local
===================================================================
--- trunk/etchserver-samples/source/sbin/ifup-local/ifup-local	                        (rev 0)
+++ trunk/etchserver-samples/source/sbin/ifup-local/ifup-local	2011-03-11 21:27:00 UTC (rev 265)
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# Setup any virtual interfaces needed on this system
+/etc/rc.virtifs
+# Setup any custom routing needed on this system
+/etc/rc.static-routes
+
+


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