src/nepi/resources/linux/traceroute.py

   1 #
   2 #    NEPI, a framework to manage network experiments
   3 #    Copyright (C) 2013 INRIA
   4 #
   5 #    This program is free software: you can redistribute it and/or modify
   6 #    it under the terms of the GNU General Public License as published by
   7 #    the Free Software Foundation, either version 3 of the License, or
   8 #    (at your option) any later version.
   9 #
  10 #    This program is distributed in the hope that it will be useful,
  11 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 #    GNU General Public License for more details.
  14 #
  15 #    You should have received a copy of the GNU General Public License
  16 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
  19
  20 from nepi.execution.attribute import Attribute, Flags, Types
  21 from nepi.execution.resource import clsinit_copy
  22 from nepi.resources.linux.application import LinuxApplication
  23 from nepi.util.timefuncs import tnow
  24
  25 import os
  26
  27 @clsinit_copy
  28 class LinuxTraceroute(LinuxApplication):
  29     _rtype = "LinuxTraceroute"
  30
  31     @classmethod
  32     def _register_attributes(cls):
  33         countinuous = Attribute("continuous",
  34             "Run traceroute in a while loop",
  35             type = Types.Bool,
  36             default = False,
  37             flags = Flags.ExecReadOnly)
  38
  39         print_timestamp = Attribute("printTimestamp",
  40             "Print timestamp before running traceroute",
  41             type = Types.Bool,
  42             default = False,
  43             flags = Flags.ExecReadOnly)
  44
  45         target = Attribute("target",
  46             "Traceroute target host (host that will be pinged)",
  47             flags = Flags.ExecReadOnly)
  48
  49         cls._register_attribute(countinuous)
  50         cls._register_attribute(print_timestamp)
  51         cls._register_attribute(target)
  52
  53     def __init__(self, ec, guid):
  54         super(LinuxTraceroute, self).__init__(ec, guid)
  55         self._home = "traceroute-%s" % self.guid
  56
  57     def deploy(self):
  58         if not self.get("command"):
  59             self.set("command", self._start_command)
  60
  61         if not self.get("depends"):
  62             self.set("depends", "traceroute")
  63
  64         super(LinuxTraceroute, self).deploy()
  65
  66     @property
  67     def _start_command(self):
  68         args = []
  69         if self.get("continuous") == True:
  70             args.append("while true; do ")
  71         if self.get("printTimestamp") == True:
  72             args.append("""echo "`date +'%Y%m%d%H%M%S'`";""")
  73         args.append("traceroute")
  74         args.append(self.get("target"))
  75         if self.get("continuous") == True:
  76             args.append("; done ")
  77
  78         command = " ".join(args)
  79
  80         return command
  81
  82     def valid_connection(self, guid):
  83         # TODO: Validate!
  84         return True
  85