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Editing: conntrack.py

# Copyright (C) 2017 Red Hat, Inc., Marcus Linden <mlinden@redhat.com>
# This file is part of the sos project: https://github.com/sosreport/sos
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# version 2 of the GNU General Public License.
#
# See the LICENSE file in the source distribution for further information.

from sos.report.plugins import (Plugin, IndependentPlugin, SoSPredicate,
                                PluginOpt)

class Conntrack(Plugin, IndependentPlugin):

short_desc = 'conntrack - netfilter connection tracking'

plugin_name = 'conntrack'
    profiles = ('network', 'cluster')
    packages = ('conntrack-tools', 'conntrack', 'conntrackd')

option_list = [
        PluginOpt("namespaces", default=None, val_type=int,
                  desc="Number of namespaces to collect, 0 for unlimited"),
    ]

def setup(self):
        # Collect info from conntrackd
        self.add_copy_spec("/etc/conntrackd/conntrackd.conf")
        self.add_cmd_output([
            "conntrackd -s network",
            "conntrackd -s cache",
            "conntrackd -s runtime",
            "conntrackd -s link",
            "conntrackd -s rsqueue",
            "conntrackd -s queue",
            "conntrackd -s ct",
            "conntrackd -s expect",
        ])

# Collect info from conntrack, only when all required kmods are loaded
        ct_pred = SoSPredicate(self,
                               kmods=['nf_conntrack',
                                      'nf_conntrack_netlink',
                                      'nf_defrag_ipv4',
                                      'nf_defrag_ipv6',
                                      'nfnetlink'],
                               required={'kmods': 'all'})
        self.add_cmd_output([
            "conntrack -L -o extended",
            "conntrack -S",
        ], pred=ct_pred)

# Capture additional data from namespaces; each command is run
        # per-namespace
        cmd_prefix = "ip netns exec "
        nsps = self.get_option('namespaces')
        for namespace in self.get_network_namespaces(ns_max=nsps):
            ns_cmd_prefix = cmd_prefix + namespace + " "
            self.add_cmd_output(ns_cmd_prefix + "conntrack -L -o extended")
            self.add_cmd_output(ns_cmd_prefix + "conntrack -S")

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