contrib/network-proxy.py: Added a simply (unicast) proxy for collectd…

… traffic.

contrib/network-proxy.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+# vim: sts=4 sw=4 et
+
+# Simple unicast proxy to send collectd traffic to another host/port.
+# Copyright (C) 2007  Pavel Shramov <shramov at mexmat.net>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; only version 2 of the License is applicable.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+# Place, Suite 330, Boston, MA  02111-1307  USA
+
+"""
+Simple unicast proxy for collectd (>= 4.0).
+Binds to 'local' address and forwards all traffic to 'remote'.
+"""
+
+import socket
+import struct
+
+""" Local multicast group/port"""
+local  = ("239.192.74.66", 25826)
+""" Address to send packets """
+remote = ("grid.pp.ru", 35826)
+
+sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
+mreq = struct.pack("4sl", socket.inet_aton(local[0]), socket.INADDR_ANY)
+
+sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_LOOP, 1)
+sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
+sock.bind(local)
+
+out = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
+
+if __name__ == "__main__":
+    while True:
+        (buf, addr) = sock.recvfrom(2048)
+        sock.sendto(buf, remote)