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85 lines
3.0 KiB
Python
Executable File
85 lines
3.0 KiB
Python
Executable File
#!/usr/bin/python
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# shorewall_accounting v1.1
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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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# Basically this plugin examines the output of "shorewall -x show accounting".
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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 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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import sys
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import commands
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import re
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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*$")
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KEY_ORDER = ["prot", "in", "out", "source", "destination", "details"]
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REPLACE_PATTERNS = {"prot": ("^all$", "allProt"),
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"in": (r"^\*$", "allIn"),
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"out": (r"^\*$", "allOut"),
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"source": (r"^0\.0\.0\.0/0", "allSrc"),
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"destination": (r"^0\.0\.0\.0/0", "allDst"),
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"details": (r"^multiport\s+", ""),
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}
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def get_accounting_rule_fieldname(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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raw = regdict[key]
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pattern, replacement = REPLACE_PATTERNS[key]
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value = re.sub(pattern, replacement, raw).strip()
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if value:
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items.append(value)
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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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def get_bytes_by_chain():
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status, output = commands.getstatusoutput("shorewall -x show accounting")
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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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chains = {}
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for line in output.splitlines():
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m = ACCOUNTING_LINE_EXP.match(line)
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if m is not None:
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target = get_accounting_rule_fieldname(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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else:
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chains[target] = 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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return retval
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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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elif sys.argv[1] == "config":
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print "graph_title Shorewall accounting"
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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():
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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.cdef %s,8,*" % (chain, chain)
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sys.exit(0)
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for chain, bytes in get_bytes_by_chain():
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print "%s.value %i" % (chain, bytes)
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