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Kulya
OpnSense
Commits
a72fda79
Commit
a72fda79
authored
Apr 01, 2016
by
Ad Schellevis
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(netflow/flowd) move resolution to BaseFlowAggregator, add cleanup() to expire old data
parent
2e20c8d6
Changes
2
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2 changed files
with
58 additions
and
2 deletions
+58
-2
aggregate.py
src/opnsense/scripts/netflow/lib/aggregate.py
+40
-2
interface.py
src/opnsense/scripts/netflow/lib/aggregates/interface.py
+18
-0
No files found.
src/opnsense/scripts/netflow/lib/aggregate.py
View file @
a72fda79
...
...
@@ -41,7 +41,8 @@ class AggMetadata(object):
if
not
os
.
path
.
isdir
(
target_path
):
os
.
makedirs
(
target_path
)
# open sqlite database and cursor
self
.
_db_connection
=
sqlite3
.
connect
(
self
.
_filename
)
self
.
_db_connection
=
sqlite3
.
connect
(
self
.
_filename
,
detect_types
=
sqlite3
.
PARSE_DECLTYPES
|
sqlite3
.
PARSE_COLNAMES
)
self
.
_db_cursor
=
self
.
_db_connection
.
cursor
()
# known tables
self
.
_tables
=
list
()
...
...
@@ -81,8 +82,23 @@ class BaseFlowAggregator(object):
# list of fields to use in this aggregate
agg_fields
=
None
@
classmethod
def
resolutions
(
cls
):
""" sample resolutions for this aggregation
:return: list of sample resolutions
"""
return
list
()
@
classmethod
def
history_per_resolution
(
cls
):
""" history to keep in seconds per sample resolution
:return: dict sample resolution / expire time (seconds)
"""
return
dict
()
def
__init__
(
self
,
resolution
):
""" construct new flow sample class
:return: None
"""
self
.
resolution
=
resolution
# target table name, data_<resolution in seconds>
...
...
@@ -101,6 +117,7 @@ class BaseFlowAggregator(object):
def
_fetch_known_targets
(
self
):
""" read known target table names from the sqlite db
:return: None
"""
if
self
.
_db_connection
is
not
None
:
self
.
_known_targets
=
list
()
...
...
@@ -112,6 +129,7 @@ class BaseFlowAggregator(object):
def
_create_target_table
(
self
):
""" construct target aggregate table, using resulution and list of agg_fields
:return: None
"""
if
self
.
_db_connection
is
not
None
:
# construct new aggregate table
...
...
@@ -132,6 +150,7 @@ class BaseFlowAggregator(object):
def
is_db_open
(
self
):
""" check if target database is open
:return: database connected (True/False)
"""
if
self
.
_db_connection
is
not
None
:
return
True
...
...
@@ -140,6 +159,7 @@ class BaseFlowAggregator(object):
def
_open_db
(
self
):
""" open / create database
:return: None
"""
if
self
.
target_filename
is
not
None
:
# make sure the target directory exists
...
...
@@ -147,12 +167,14 @@ class BaseFlowAggregator(object):
if
not
os
.
path
.
isdir
(
target_path
):
os
.
makedirs
(
target_path
)
# open sqlite database
self
.
_db_connection
=
sqlite3
.
connect
(
self
.
target_filename
%
self
.
resolution
)
self
.
_db_connection
=
sqlite3
.
connect
(
self
.
target_filename
%
self
.
resolution
,
detect_types
=
sqlite3
.
PARSE_DECLTYPES
|
sqlite3
.
PARSE_COLNAMES
)
# open update/insert cursor
self
.
_update_cur
=
self
.
_db_connection
.
cursor
()
def
commit
(
self
):
""" commit data
:return: None
"""
if
self
.
_db_connection
is
not
None
:
self
.
_db_connection
.
commit
()
...
...
@@ -160,6 +182,7 @@ class BaseFlowAggregator(object):
def
add
(
self
,
flow
):
""" calculate timeslices per flow depending on sample resolution
:param flow: flow data (from parse.py)
:return: None
"""
# make sure target exists
if
'timeserie'
not
in
self
.
_known_targets
:
...
...
@@ -184,3 +207,18 @@ class BaseFlowAggregator(object):
self
.
_update_cur
.
execute
(
self
.
_insert_stmt
,
flow
)
# next start time
start_time
+=
self
.
resolution
def
cleanup
(
self
):
""" cleanup timeserie table
:param expire: cleanup table, remove data older then [expire] seconds
:return: None
"""
if
'timeserie'
in
self
.
_known_targets
and
self
.
resolution
in
self
.
history_per_resolution
():
self
.
_update_cur
.
execute
(
'select max(mtime) as "[timestamp]" from timeserie'
)
last_timestamp
=
self
.
_update_cur
.
fetchall
()[
0
][
0
]
if
type
(
last_timestamp
)
==
datetime
.
datetime
:
expire
=
self
.
history_per_resolution
()[
self
.
resolution
]
expire_timestamp
=
last_timestamp
-
datetime
.
timedelta
(
seconds
=
expire
)
self
.
_update_cur
.
execute
(
'delete from timeserie where mtime < :expire'
,
{
'expire'
:
expire_timestamp
})
self
.
commit
()
# todo: might need vacuum at some point.
src/opnsense/scripts/netflow/lib/aggregates/interface.py
View file @
a72fda79
...
...
@@ -34,5 +34,23 @@ class FlowInterfaceTotals(BaseFlowAggregator):
target_filename
=
'/var/netflow/interface_
%06
d.sqlite'
agg_fields
=
[
'if_in'
,
'if_out'
]
@
classmethod
def
resolutions
(
cls
):
"""
:return: list of sample resolutions
"""
return
[
60
,
60
*
5
]
@
classmethod
def
history_per_resolution
(
cls
):
"""
:return: dict sample resolution / expire time (seconds)
"""
return
{
60
:
60
*
60
}
def
__init__
(
self
,
resolution
):
"""
:param resolution: sample resultion (seconds)
:return: None
"""
super
(
FlowInterfaceTotals
,
self
)
.
__init__
(
resolution
)
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