2 # Lets a user kill processes bound to
3 # ports in his assigned port range. To assign a port
4 # range, set the vsys_portreservation attribute for that user.
5 # e.g. vsys_portreservation => 61000-61005
11 vsys_config_dir = "/etc/planetlab/vsys-attributes"
13 port_config=os.path.join(vsys_config_dir,slicename,"vsys_portreservation")
15 ports = open(port_config).read().rstrip()
16 (low,high) = map(lambda n:int(n),ports.split('-'))
18 arglines = map(string.strip, sys.stdin.readlines())
20 print >>sys.stderr, "Insufficient argument lines."
23 port = int(arglines[0]) # interface name
27 slice_info = os.popen('chcontext --ctx 1 cat /proc/%s/vinfo'%p).readlines()
28 xid_info = slice_info[0]
29 slice_id = xid_info.split()[1]
30 os.system("vkill %s"%p)
31 slice = os.popen('getent passwd %s'%slice_id).read().split(':')[0]
32 mail_cmd = 'mail -s "PlanetLab notification" %s@slices.planet-lab.org -c %s@slices.planet-lab.org'%(slice,slicename)
33 f = os.popen(mail_cmd,'w')
34 f.write('Hi,\nOne of your processes on PlanetLab was terminated because you were using port %s, which is assigned to %s.'%(port,slicename))
39 fuser_cmd = "ncontext --nid 1 --migrate -- chcontext --ctx 1 fuser -n tcp %d 2> /dev/null"%port
40 process_udp = os.popen(fuser_cmd).read().rstrip()
42 fuser_cmd = "ncontext --nid 1 --migrate -- chcontext --ctx 1 fuser -n udp %d 2> /dev/null"%port
43 process_tcp = os.popen(fuser_cmd).read().rstrip()
45 do_kill(process_tcp.lstrip())
46 do_kill(process_udp.lstrip())
49 print "%d is not in your range"%port