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# register-dissector.py
#
# $Id$
#
# Wireshark Protocol Python Binding
#
# Copyright (c) 2009 by Sebastien Tandel <sebastien [AT] tandel [dot] be>
# Copyright (c) 2001 by Gerald Combs <gerald@wireshark.org>
#
# 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; either version 2
# of the License, or (at your option) any later version.
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import sys
import re
import os
import imp
#
# Build a list of files belonging to a directory and matching a regexp (f.e.
# '(?P<plugin>.*)\.py$' )
#
def get_plugin_list(dir, regexp):
lDir = os.listdir(dir)
lPlugins=[]
for sDir in lDir:
MatchedObject = re.match(regexp, sDir)
if (MatchedObject != None):
lPlugins.append(MatchedObject.group("plugin"))
return lPlugins
#Import the module "name"
def plugin_import(name):
#if the module was already loaded
try:
return sys.modules[name]
except KeyError:
pass
r = __import__(name)
return r
def register_dissectors(wspython_dir, plugins_pers_dir=None):
#append dir to be able to import py_lib
sys.path.append(wspython_dir)
from wspy_libws import get_libws_handle
libws = get_libws_handle()
dissectors_dirs = [
os.path.join(wspython_dir, 'wspy_dissectors'),
plugins_pers_dir
]
registered_protocols = []
for dissectors_dir in dissectors_dirs:
#Check if we have the dissectors directory
if not os.path.isdir(dissectors_dir):
continue
#append dir to be able to import python dissectors
sys.path.append(dissectors_dir)
#Read all python dissectors
dissectors = get_plugin_list(dissectors_dir, "(?P<plugin>.*)\.py$")
#For each dissector, register it and put it in the list of registered
#protocols
for dissector in dissectors:
try:
d = plugin_import(dissector)
registered_protocol = d.register_protocol()
if registered_protocol:
registered_protocols.append(registered_protocol)
except Exception, e:
print 'register dissector %s exception %s' % (dissector, e)
return registered_protocols
if False:
import linecache
# Start tracing when import has finished
def tracer(frame, event, arg):
if event == "line":
lineno = frame.f_lineno
filename = frame.f_globals["__file__"]
if (filename.endswith(".pyc") or
filename.endswith(".pyo")):
filename = filename[:-1]
name = frame.f_globals["__name__"]
line = linecache.getline(filename, lineno)
print "%s:%s: %s" % (name, lineno, line.rstrip())
if event == "exception":
print "exception", arg
return tracer
sys.settrace(tracer)
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