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ei-grad/ct_nat.py

Last active August 29, 2015 14:14
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ct_nat.py
from Conntrack import ConnectionManager, NFCT_O_XML
from lxml.etree import fromstring
def filter_nat(xml):
d = fromstring(xml)
orig_src = d.xpath("..//meta[@direction='original']/layer3/src/text()")[0]
repl_dst = d.xpath("..//meta[@direction='reply']/layer3/dst/text()")[0]
return orig_src != repl_dst
for i in ConnectionManager(NFCT_O_XML).list():
if filter_nat(i):
print(i)
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