net/ipvsadm: add Virtual Server Administration Tool

Add the ipvsadm command line tool to set up, maintain or inspect the virtual
server table in the Linux kernel.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

net/ipvsadm/patches/002-save-restore.patch

@@ -0,0 +1,34 @@
+--- a/ipvsadm-restore
++++ b/ipvsadm-restore
+@@ -1,4 +1,4 @@
+-#!/bin/bash
++#!/bin/sh
+ #      ipvsadm-restore - Restore IPVS rules
+ #
+ #      A very simple wrapper to restore IPVS rules
+@@ -11,6 +11,8 @@
+ #      This file:
+ #
+ #      ChangeLog
++#      M. Mozzarelli       :        Amended to use /bin/sh for compatibility
++#                          :        with embedded systems using busybox
+ #      Horms               :        Clear IPVS rules before adding from STDIN
+ #      Horms               :        Filter out "^#"
+ #
+--- a/ipvsadm-save
++++ b/ipvsadm-save
+@@ -1,4 +1,4 @@
+-#!/bin/bash
++#!/bin/sh
+ #      ipvsadm-save - Save IPVS rules
+ #
+ #      A very simple wrapper to save IPVS rules
+@@ -12,6 +12,8 @@
+ #
+ #      ChangeLog
+ #
++#    M. Mozzarelli          :  Amended to use /bin/sh for compatibility
++#                           :  with embedded systems using busybox
+ #	 Wensong Zhang          :  Added the "-n" option and the help()
+ #
+