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+# Copyright (C) 2013 Internet Systems Consortium.
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+#
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+# Permission to use, copy, modify, and distribute this software for any
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+# purpose with or without fee is hereby granted, provided that the above
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+# copyright notice and this permission notice appear in all copies.
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+#
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+# THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SYSTEMS CONSORTIUM
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+# DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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+# INTERNET SYSTEMS CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
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+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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+# FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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+# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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+# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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+
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+"""BIND 10 statistics counters module for DNS
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+
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+This module basically inherits the class in isc.statistics.counters.
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+It handles DNS-specific information. For a DNS purpose, each BIND 10
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+module uses this module instead of the parent module
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+(isc.statistics.counters). Also see isc.statistics.counters.__doc__
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+for details."""
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+
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+import isc.config
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+from isc.statistics import counters
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+
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+class _Statistics():
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+ """Statistics data set"""
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+ # default statistics data
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+ _data = {}
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+ # default statistics spec used in case the specfile is omitted when
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+ # constructing a Counters() object
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+ _spec = [
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+ {
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+ "item_name": "zones",
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+ "item_type": "named_set",
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+ "item_optional": False,
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+ "item_default": {
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+ "_SERVER_" : {
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+ "notifyoutv4" : 0,
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+ "notifyoutv6" : 0
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+ }
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+ },
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+ "item_title": "Zone names",
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+ "item_description": "Zone names",
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+ "named_set_item_spec": {
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+ "item_name": "classname",
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+ "item_type": "named_set",
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+ "item_optional": False,
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+ "item_default": {},
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+ "item_title": "RR class name",
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+ "item_description": "RR class name",
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+ "named_set_item_spec": {
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+ "item_name": "zonename",
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+ "item_type": "map",
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+ "item_optional": False,
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+ "item_default": {},
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+ "item_title": "Zone name",
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+ "item_description": "Zone name",
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+ "map_item_spec": [
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+ {
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+ "item_name": "notifyoutv4",
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+ "item_type": "integer",
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+ "item_optional": False,
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+ "item_default": 0,
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+ "item_title": "IPv4 notifies",
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+ "item_description": "Number of IPv4 notifies per zone name sent out"
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+ },
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+ {
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+ "item_name": "notifyoutv6",
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+ "item_type": "integer",
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+ "item_optional": False,
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+ "item_default": 0,
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+ "item_title": "IPv6 notifies",
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+ "item_description": "Number of IPv6 notifies per zone name sent out"
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+ }
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+ ]
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+ }
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+ }
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+ }
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+ ]
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+
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+class Counters(counters.Counters):
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+ """A list of counters which can be handled in the class are like
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+ the following. Also see counters.Counters.__doc__ for details.
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+
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+ zones/IN/example.com./notifyoutv4
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+ zones/IN/example.com./notifyoutv6
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+ zones/IN/example.com./xfrrej
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+ zones/IN/example.com./xfrreqdone
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+ zones/IN/example.com./soaoutv4
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+ zones/IN/example.com./soaoutv6
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+ zones/IN/example.com./axfrreqv4
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+ zones/IN/example.com./axfrreqv6
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+ zones/IN/example.com./ixfrreqv4
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+ zones/IN/example.com./ixfrreqv6
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+ zones/IN/example.com./xfrsuccess
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+ zones/IN/example.com./xfrfail
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+ zones/IN/example.com./last_ixfr_duration
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+ zones/IN/example.com./last_axfr_duration
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+ ixfr_running
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+ axfr_running
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+ socket/unixdomain/open
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+ socket/unixdomain/openfail
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+ socket/unixdomain/close
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+ socket/unixdomain/bindfail
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+ socket/unixdomain/acceptfail
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+ socket/unixdomain/accept
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+ socket/unixdomain/senderr
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+ socket/unixdomain/recverr
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+ socket/ipv4/tcp/open
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+ socket/ipv4/tcp/openfail
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+ socket/ipv4/tcp/close
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+ socket/ipv4/tcp/connfail
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+ socket/ipv4/tcp/conn
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+ socket/ipv4/tcp/senderr
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+ socket/ipv4/tcp/recverr
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+ socket/ipv6/tcp/open
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+ socket/ipv6/tcp/openfail
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+ socket/ipv6/tcp/close
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+ socket/ipv6/tcp/connfail
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+ socket/ipv6/tcp/conn
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+ socket/ipv6/tcp/senderr
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+ socket/ipv6/tcp/recverr
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+ """
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+ # '_SERVER_' is a special zone name representing an entire
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+ # count. It doesn't mean a specific zone, but it means an
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+ # entire count in the server.
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+ _entire_server = '_SERVER_'
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+ # zone names are contained under this dirname in the spec file.
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+ _perzone_prefix = 'zones'
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+ # default statistics data set
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+ _statistics = _Statistics()
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+
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+ def __init__(self, spec_file_name=None):
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+ """If the spec file has 'zones', it obtains a list of counter
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+ names under it when initiating. For behaviors other than
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+ this, see isc.statistics.counters.Counters.__init__.__doc__."""
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+ counters.Counters.__init__(self, spec_file_name)
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+ if self._perzone_prefix in \
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+ isc.config.spec_name_list(self._statistics._spec):
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+ self._zones_item_list = isc.config.spec_name_list(
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+ isc.config.find_spec_part(
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+ self._statistics._spec,
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+ '%s/%s/%s' % (self._perzone_prefix,
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+ '_CLASS_', self._entire_server)))
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+
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+ def get_statistics(self):
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+ """Calculates an entire server's counts, and returns statistics
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+ data in a format to send out to the stats module, including each
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+ counter. If nothing is counted yet, then it returns an empty
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+ dictionary."""
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+ # entire copy
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+ statistics_data = self._statistics._data.copy()
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+ # If there is no 'zones' found in statistics_data,
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+ # i.e. statistics_data contains no per-zone counter, it just
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+ # returns statistics_data because calculating total counts
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+ # across the zone names isn't necessary.
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+ if self._perzone_prefix not in statistics_data:
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+ return statistics_data
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+ zones = statistics_data[self._perzone_prefix]
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+ # Start calculation for '_SERVER_' counts
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+ zones_spec = isc.config.find_spec_part(self._statistics._spec,
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+ self._perzone_prefix)
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+ zones_data = {}
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+ for cls in zones.keys():
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+ for zone in zones[cls].keys():
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+ for (attr, val) in zones[cls][zone].items():
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+ id_str1 = '%s/%s/%s' % (cls, zone, attr)
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+ id_str2 = '%s/%s/%s' % (cls, self._entire_server, attr)
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+ counters._set_counter(zones_data, zones_spec, id_str1, val)
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+ counters._inc_counter(zones_data, zones_spec, id_str2, val)
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+ # insert entire-server counts
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+ statistics_data[self._perzone_prefix] = dict(
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+ statistics_data[self._perzone_prefix],
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+ **zones_data)
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+ return statistics_data
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Naoki Kambe