1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
#!/usr/bin/python
# Copyright (C) 2009 Gluster, Inc. <http://www.gluster.com>
# This file is part of Gluster Storage Platform.
#
# Gluster Storage Platform 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; either version 3 of
# the License, or (at your option) any later version.
#
# Gluster Storage Platform 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, see
# <http://www.gnu.org/licenses/>.
import socket
import struct
import Globals
def response(multiCastGroup, port):
# waiting for the request!
socketRequest = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
socketRequest.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
socketRequest.bind(('', port))
mreq = struct.pack("4sl", socket.inet_aton(multiCastGroup), socket.INADDR_ANY)
socketRequest.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
socketSend = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
socketSend.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)
#TODO: Remove infinite loop and make this as a deamon (service)
while True:
request = socketRequest.recvfrom(1024)
if request and request[0].upper() == "SERVERDISCOVERY":
socketSend.sendto(socket.gethostname(), (multiCastGroup, port))
request = None
def main():
response(Globals.MULTICAST_GROUP, Globals.MULTICAST_PORT)
if __name__ == "__main__":
main()
|
