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updated shorewall-accounting_ to v1.3
* renamed plugin file from "shorewall_accounting" to "shorewall-accounting_" * CAUTION: rename your symlinks and plugin config section! * added optional SHOREWALL_BIN environment variable * improved labels for rules (don't mask dots)
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Lars Kruse
parent
ea382ede4e
commit
265e39e038
1 changed files with 59 additions and 28 deletions
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@ -1,5 +1,5 @@
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#!/usr/bin/python
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# shorewall_accounting v1.2
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# shorewall_accounting v1.3
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#
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# A munin plugin for tracking traffic as recorded by shorewall accounting rules.
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# See "man shorewall-accounting" for all possible accounting rules.
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@ -7,31 +7,44 @@
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# See http://atlee.ca/blog/2006/01/20/munin-shorewall/ for a description of
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# the original script by Chris AtLee.
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#
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# Copyright 2010 Lars Kruse <devel@sumpralle.de>
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# Copyright 2010-2012 Lars Kruse <devel@sumpralle.de>
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# Copyright 2006 Chris AtLee <chris@atlee.ca>
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#
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# Original publication: http://atlee.ca/blog/2006/01/20/munin-shorewall/
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# Released under the GPL v3
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# Released under the GPL v3 or later
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#
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# You can use symlinks of this script according to the following pattern:
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# shorewall_accounting_prot: use only rules with a specific protocol
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# shorewall_accounting_in: use only rules with a specific input interface
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# shorewall_accounting_out: use only rules with a specific output interface
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# shorewall_accounting_source: use only rules with a specific source IP
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# shorewall_accounting_destination: use only rules with a specific destination IP
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# shorewall_accounting_details: use only rules with specific details (e.g. a port)
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# shorewall-accounting_prot: use only rules with a specific protocol
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# shorewall-accounting_in: use only rules with a specific input interface
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# shorewall-accounting_out: use only rules with a specific output interface
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# shorewall-accounting_source: use only rules with a specific source IP
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# shorewall-accounting_destination: use only rules with a specific destination IP
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# shorewall-accounting_details: use only rules with specific details (e.g. a port)
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#
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# Here "specific" means: non-default (e.g. a protocol was specified).
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# Combinations are allowed:
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# shorewall_accounting_prot_in_source: use only rules with a specific protocol, input interface and source IP
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# shorewall-accounting_prot_in_source: use only rules with a specific protocol, input interface and source IP
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#
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# Environment variables:
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# SHOREWALL_BIN - defaults to /sbin/shorewall
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#
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# Changelog:
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# v1.3 - 2012/04/02
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# * renamed plugin file from "shorewall_accounting" to "shorewall-accounting_"
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# * CAUTION: rename your symlinks and plugin config section!
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# * added optional SHOREWALL_BIN environment variable
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# * improved labels for rules (don't mask dots)
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#
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#%# family=auto
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#%# capabilities=autoconf
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import sys
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import os
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import commands
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import re
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PLUGIN_BASE_NAME = "shorewall_accounting"
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PLUGIN_BASE_NAME = "shorewall-accounting"
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SHOREWALL_BIN = os.environ.get("SHOREWALL_BIN", "/sbin/shorewall")
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ACCOUNTING_LINE_EXP = re.compile(r"^\s*\d+\s+(\d+)\s+(?P<prot>\w+)\s+(?P<opt>[\w-]+)\s+(?P<in>[\w*]+)\s+(?P<out>[\w*]+)\s+(?P<source>[\w./+-]+)\s+(?P<destination>[\w./+-]+)\s*(?P<details>.*)\s*$")
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KEY_ORDER = ["prot", "in", "out", "source", "destination", "details"]
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FILTER_PATTERNS = {
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@ -52,7 +65,7 @@ REPLACE_PATTERNS = {
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}
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def get_accounting_rule_fieldname(regdict):
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def get_accounting_rule_fieldname_and_label(regdict):
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items = []
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# filter and clean all requested keys
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for key in KEY_ORDER:
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@ -64,8 +77,10 @@ def get_accounting_rule_fieldname(regdict):
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result = "_".join(items)
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# clean the fieldname: http://munin-monitoring.org/wiki/notes_on_datasource_names
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result = re.sub(r"^[^A-Za-z_]", "_", result)
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result = re.sub(r"[^A-Za-z0-9_]", "_", result)
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return result
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fieldname = re.sub(r"[^A-Za-z0-9_]", "_", result)
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# keep dots (for IP addresses)
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label = re.sub(r"[^A-Za-z0-9_\.]", "_", result)
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return fieldname, label
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def is_wanted(regdict, filter_list):
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for item in filter_list:
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@ -78,9 +93,11 @@ def is_wanted(regdict, filter_list):
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return True
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def get_bytes_by_chain(filter_list):
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status, output = commands.getstatusoutput("shorewall -x show accounting")
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status, output = commands.getstatusoutput("'%s' -x show accounting" \
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% SHOREWALL_BIN)
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if status != 0:
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raise OSError("Error running command (%s)[%i]: %s" % (trafficCmd, status, output))
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raise OSError("Error running command (%s)[%i]: %s" % (SHOREWALL_BIN,
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status, output))
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chains = {}
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for line in output.splitlines():
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m = ACCOUNTING_LINE_EXP.match(line)
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@ -88,20 +105,22 @@ def get_bytes_by_chain(filter_list):
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# check if this line was filtered
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if not is_wanted(m.groupdict(), filter_list):
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continue
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target = get_accounting_rule_fieldname(m.groupdict())
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fieldname, label = get_accounting_rule_fieldname_and_label(m.groupdict())
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bytes = int(m.group(1))
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if target in chains:
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chains[target] += bytes
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if fieldname in chains:
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chains[fieldname][1] += bytes
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else:
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chains[target] = bytes
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chains[fieldname] = [label, bytes]
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retval = []
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names = chains.keys()
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names.sort()
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for name in names:
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retval.append((name, chains[name]))
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retval.append((name, chains[name][0], chains[name][1]))
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return retval
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# extract the filters from the symlink's name
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# (e.g. "shorewall-accounting_in_out_details" -> in, out, details)
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call_name = os.path.basename(sys.argv[0])
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if call_name.startswith(PLUGIN_BASE_NAME):
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suffix = call_name[len(PLUGIN_BASE_NAME):]
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@ -113,19 +132,31 @@ else:
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if len(sys.argv) > 1:
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if sys.argv[1] == "autoconf":
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print "yes"
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sys.exit(0)
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status, output = commands.getstatusoutput("'%s' -x show accounting" \
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% SHOREWALL_BIN)
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if (status != 0) or not output:
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print "no"
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else:
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print "yes"
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elif sys.argv[1] == "config":
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print "graph_title Shorewall accounting"
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if not filter_list:
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title_addon = "all"
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else:
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title_addon = " / ".join(filter_list)
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print "graph_title Shorewall accounting: %s" % title_addon
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print "graph_category network"
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print "graph_vlabel bits per ${graph_period}"
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for chain, bytes in get_bytes_by_chain(filter_list):
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for chain, label, bytes in get_bytes_by_chain(filter_list):
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label = " ".join([item for item in label.split("_")
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if not item.lower().startswith("all")])
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if not label:
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label = "all"
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print "%s.min 0" % chain
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print "%s.type DERIVE" % chain
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print "%s.label %s" % (chain, chain)
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print "%s.label %s" % (chain, label)
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print "%s.cdef %s,8,*" % (chain, chain)
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sys.exit(0)
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sys.exit(0)
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for chain, bytes in get_bytes_by_chain(filter_list):
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for chain, label, bytes in get_bytes_by_chain(filter_list):
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print "%s.value %i" % (chain, bytes)
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