Checkpoint for SumStats rename.

This commit is contained in:
Seth Hall 2013-04-15 15:12:28 -04:00
parent 8165d6077d
commit fbe967e16a
32 changed files with 626 additions and 620 deletions

View file

@ -7,7 +7,7 @@
@load base/frameworks/cluster
@load ./main
module Measurement;
module SumStats;
export {
## Allows a user to decide how large of result groups the
@ -48,22 +48,21 @@ export {
global cluster_key_request: event(uid: string, mid: string, key: Key);
## This event is sent by nodes in response to a
## :bro:id:`Measurement::cluster_key_request` event.
## :bro:id:`SumStats::cluster_key_request` event.
global cluster_key_response: event(uid: string, mid: string, key: Key, result: Result);
## This is sent by workers to indicate that they crossed the percent of the
## current threshold by the percentage defined globally in
## :bro:id:`Measurement::cluster_request_global_view_percent`
global cluster_key_intermediate_response: event(mid: string, key: Measurement::Key);
## :bro:id:`SumStats::cluster_request_global_view_percent`
global cluster_key_intermediate_response: event(mid: string, key: SumStats::Key);
## This event is scheduled internally on workers to send result chunks.
global send_data: event(uid: string, mid: string, data: ResultTable);
}
# Add events to the cluster framework to make this work.
redef Cluster::manager2worker_events += /Measurement::cluster_(measurement_request|key_request)/;
redef Cluster::manager2worker_events += /Measurement::new_measurement/;
redef Cluster::worker2manager_events += /Measurement::cluster_(measurement_response|key_response|key_intermediate_response)/;
redef Cluster::manager2worker_events += /SumStats::cluster_(measurement_request|key_request)/;
redef Cluster::worker2manager_events += /SumStats::cluster_(measurement_response|key_response|key_intermediate_response)/;
@if ( Cluster::local_node_type() != Cluster::MANAGER )
# This variable is maintained to know what keys have recently sent as
@ -75,32 +74,32 @@ global recent_global_view_keys: table[string, Key] of count &create_expire=1min
event bro_init() &priority=-100
{
# The manager is the only host allowed to track these.
measurement_store = table();
stats_store = table();
reducer_store = table();
}
# This is done on all non-manager node types in the event that a metric is
# being collected somewhere other than a worker.
function data_added(m: Measurement, key: Key, result: Result)
function data_added(ss: SumStat, key: Key, result: Result)
{
# If an intermediate update for this value was sent recently, don't send
# it again.
if ( [m$id, key] in recent_global_view_keys )
if ( [ss$id, key] in recent_global_view_keys )
return;
# If val is 5 and global view % is 0.1 (10%), pct_val will be 50. If that
# crosses the full threshold then it's a candidate to send as an
# intermediate update.
if ( enable_intermediate_updates &&
check_thresholds(m, key, result, cluster_request_global_view_percent) )
check_thresholds(ss, key, result, cluster_request_global_view_percent) )
{
# kick off intermediate update
event Measurement::cluster_key_intermediate_response(m$id, key);
++recent_global_view_keys[m$id, key];
event SumStats::cluster_key_intermediate_response(ss$id, key);
++recent_global_view_keys[ss$id, key];
}
}
event Measurement::send_data(uid: string, mid: string, data: ResultTable)
event SumStats::send_data(uid: string, mid: string, data: ResultTable)
{
#print fmt("WORKER %s: sending data for uid %s...", Cluster::node, uid);
@ -122,39 +121,39 @@ event Measurement::send_data(uid: string, mid: string, data: ResultTable)
if ( |data| == 0 )
done = T;
event Measurement::cluster_measurement_response(uid, mid, local_data, done);
event SumStats::cluster_measurement_response(uid, mid, local_data, done);
if ( ! done )
schedule 0.01 sec { Measurement::send_data(uid, mid, data) };
schedule 0.01 sec { SumStats::send_data(uid, mid, data) };
}
event Measurement::cluster_measurement_request(uid: string, mid: string)
event SumStats::cluster_measurement_request(uid: string, mid: string)
{
#print fmt("WORKER %s: received the cluster_measurement_request event for %s.", Cluster::node, id);
# Initiate sending all of the data for the requested measurement.
if ( mid in result_store )
event Measurement::send_data(uid, mid, result_store[mid]);
event SumStats::send_data(uid, mid, result_store[mid]);
else
event Measurement::send_data(uid, mid, table());
event SumStats::send_data(uid, mid, table());
# Lookup the actual measurement and reset it, the reference to the data
# currently stored will be maintained internally by the send_data event.
if ( mid in measurement_store )
reset(measurement_store[mid]);
if ( mid in stats_store )
reset(stats_store[mid]);
}
event Measurement::cluster_key_request(uid: string, mid: string, key: Key)
event SumStats::cluster_key_request(uid: string, mid: string, key: Key)
{
if ( mid in result_store && key in result_store[mid] )
{
#print fmt("WORKER %s: received the cluster_key_request event for %s=%s.", Cluster::node, key2str(key), data);
event Measurement::cluster_key_response(uid, mid, key, result_store[mid][key]);
event SumStats::cluster_key_response(uid, mid, key, result_store[mid][key]);
}
else
{
# We need to send an empty response if we don't have the data so that the manager
# can know that it heard back from all of the workers.
event Measurement::cluster_key_response(uid, mid, key, table());
event SumStats::cluster_key_response(uid, mid, key, table());
}
}
@ -166,7 +165,7 @@ event Measurement::cluster_key_request(uid: string, mid: string, key: Key)
# This variable is maintained by manager nodes as they collect and aggregate
# results.
# Index on a uid.
global measurement_results: table[string] of ResultTable &read_expire=1min;
global stats_results: table[string] of ResultTable &read_expire=1min;
# This variable is maintained by manager nodes to track how many "dones" they
# collected per collection unique id. Once the number of results for a uid
@ -189,7 +188,7 @@ global outstanding_global_views: table[string] of count &default=0;
const zero_time = double_to_time(0.0);
# Managers handle logging.
event Measurement::finish_epoch(m: Measurement)
event SumStats::finish_epoch(ss: SumStat)
{
if ( network_time() > zero_time )
{
@ -198,25 +197,25 @@ event Measurement::finish_epoch(m: Measurement)
if ( uid in measurement_results )
delete measurement_results[uid];
measurement_results[uid] = table();
stats_results[uid] = table();
# Request data from peers.
event Measurement::cluster_measurement_request(uid, m$id);
event SumStats::cluster_measurement_request(uid, ss$id);
}
# Schedule the next finish_epoch event.
schedule m$epoch { Measurement::finish_epoch(m) };
schedule m$epoch { SumStats::finish_epoch(m) };
}
# This is unlikely to be called often, but it's here in case there are measurements
# being collected by managers.
function data_added(m: Measurement, key: Key, result: Result)
function data_added(ss: SumStat, key: Key, result: Result)
{
if ( check_thresholds(m, key, result, 1.0) )
threshold_crossed(m, key, result);
if ( check_thresholds(ss, key, result, 1.0) )
threshold_crossed(ss, key, result);
}
event Measurement::cluster_key_response(uid: string, mid: string, key: Key, result: Result)
event SumStats::cluster_key_response(uid: string, ssid: string, key: Key, result: Result)
{
#print fmt("%0.6f MANAGER: receiving key data from %s - %s=%s", network_time(), get_event_peer()$descr, key2str(key), result);
@ -233,26 +232,26 @@ event Measurement::cluster_key_response(uid: string, mid: string, key: Key, resu
#print fmt("worker_count:%d :: done_with:%d", Cluster::worker_count, done_with[uid]);
if ( Cluster::worker_count == done_with[uid] )
{
local m = measurement_store[mid];
local ss = stats_store[ssid];
local ir = key_requests[uid];
if ( check_thresholds(m, key, ir, 1.0) )
threshold_crossed(m, key, ir);
if ( check_thresholds(ss, key, ir, 1.0) )
threshold_crossed(ss, key, ir);
delete done_with[uid];
delete key_requests[uid];
# Check that there is an outstanding view before subtracting.
if ( outstanding_global_views[mid] > 0 )
--outstanding_global_views[mid];
if ( outstanding_global_views[ssid] > 0 )
--outstanding_global_views[ssid];
}
}
# Managers handle intermediate updates here.
event Measurement::cluster_key_intermediate_response(mid: string, key: Key)
event SumStats::cluster_key_intermediate_response(ssid: string, key: Key)
{
#print fmt("MANAGER: receiving intermediate key data from %s", get_event_peer()$descr);
#print fmt("MANAGER: requesting key data for %s", key2str(key));
if ( mid in outstanding_global_views &&
if ( ssid in outstanding_global_views &&
|outstanding_global_views[mid]| > max_outstanding_global_views )
{
# Don't do this intermediate update. Perhaps at some point in the future
@ -261,13 +260,13 @@ event Measurement::cluster_key_intermediate_response(mid: string, key: Key)
return;
}
++outstanding_global_views[mid];
++outstanding_global_views[ssid];
local uid = unique_id("");
event Measurement::cluster_key_request(uid, mid, key);
event SumStats::cluster_key_request(uid, ssid, key);
}
event Measurement::cluster_measurement_response(uid: string, mid: string, data: ResultTable, done: bool)
event SumStats::cluster_measurement_response(uid: string, ssid: string, data: ResultTable, done: bool)
{
#print fmt("MANAGER: receiving results from %s", get_event_peer()$descr);
@ -275,8 +274,8 @@ event Measurement::cluster_measurement_response(uid: string, mid: string, data:
if ( done )
++done_with[uid];
local local_data = measurement_results[uid];
local m = measurement_store[mid];
local local_data = stats_results[uid];
local ss = stats_store[ssid];
for ( key in data )
{
@ -285,14 +284,14 @@ event Measurement::cluster_measurement_response(uid: string, mid: string, data:
else
local_data[key] = data[key];
# If a measurement is done being collected, thresholds for each key
# need to be checked so we're doing it here to avoid doubly iterating
# over each key.
# If a stat is done being collected, thresholds for each key
# need to be checked so we're doing it here to avoid doubly
# iterating over each key.
if ( Cluster::worker_count == done_with[uid] )
{
if ( check_thresholds(m, key, local_data[key], 1.0) )
if ( check_thresholds(ss, key, local_data[key], 1.0) )
{
threshold_crossed(m, key, local_data[key]);
threshold_crossed(ss, key, local_data[key]);
}
}
}
@ -300,20 +299,20 @@ event Measurement::cluster_measurement_response(uid: string, mid: string, data:
# If the data has been collected from all peers, we are done and ready to finish.
if ( Cluster::worker_count == done_with[uid] )
{
if ( m?$epoch_finished )
m$epoch_finished(local_data);
if ( ss?$epoch_finished )
ss$epoch_finished(local_data);
# Clean up
delete measurement_results[uid];
delete stats_results[uid];
delete done_with[uid];
# Not sure I need to reset the measurement on the manager.
reset(m);
reset(ss);
}
}
event remote_connection_handshake_done(p: event_peer) &priority=5
{
send_id(p, "Measurement::measurement_store");
send_id(p, "Measurement::reducer_store");
send_id(p, "SumStats::stats_store");
send_id(p, "SumStats::reducer_store");
}
@endif

View file

@ -1,6 +1,8 @@
##! The measurement framework provides a way to count and measure data.
##! The summary statistics framework provides a way to
##! summarize large streams of data into simple reduced
##! measurements.
module Measurement;
module SumStats;
export {
## The various calculations are all defined as plugins.
@ -8,14 +10,17 @@ export {
PLACEHOLDER
};
## Represents a thing which is having measurement results collected for it.
## Represents a thing which is having summarization
## results collected for it.
type Key: record {
## A non-address related measurement or a sub-key for an address based measurement.
## An example might be successful SSH connections by client IP address
## A non-address related summarization or a sub-key for
## an address based summarization. An example might be
## successful SSH connections by client IP address
## where the client string would be the key value.
## Another example might be number of HTTP requests to a particular
## value in a Host header. This is an example of a non-host based
## metric since multiple IP addresses could respond for the same Host
## Another example might be number of HTTP requests to
## a particular value in a Host header. This is an
## example of a non-host based metric since multiple
## IP addresses could respond for the same Host
## header value.
str: string &optional;
@ -23,9 +28,9 @@ export {
host: addr &optional;
};
## Represents data being added for a single metric data point.
## Only supply a single value here at a time.
type DataPoint: record {
## Represents data being added for a single observation.
## Only supply a single field at a time!
type Observation: record {
## Count value.
num: count &optional;
## Double value.
@ -35,102 +40,110 @@ export {
};
type Reducer: record {
## Data stream identifier for the reducer to attach to.
## Observation stream identifier for the reducer
## to attach to.
stream: string;
## The calculations to perform on the data points.
apply: set[Calculation];
## A predicate so that you can decide per key if you would like
## to accept the data being inserted.
pred: function(key: Measurement::Key, point: Measurement::DataPoint): bool &optional;
## A predicate so that you can decide per key if you
## would like to accept the data being inserted.
pred: function(key: SumStats::Key, obs: SumStats::Observation): bool &optional;
## A function to normalize the key. This can be used to aggregate or
## normalize the entire key.
normalize_key: function(key: Measurement::Key): Key &optional;
normalize_key: function(key: SumStats::Key): Key &optional;
};
## Value calculated for a data point stream fed into a reducer.
## Value calculated for an observation stream fed into a reducer.
## Most of the fields are added by plugins.
type ResultVal: record {
## The time when the first data point was added to this result value.
## The time when the first observation was added to
## this result value.
begin: time;
## The time when the last data point was added to this result value.
## The time when the last observation was added to
## this result value.
end: time;
## The number of measurements received.
## The number of observations received.
num: count &default=0;
};
## Type to store results for multiple reducers.
type Result: table[string] of ResultVal;
## Type to store a table of measurement results indexed by the measurement key.
## Type to store a table of sumstats results indexed
## by keys.
type ResultTable: table[Key] of Result;
## Measurements represent an aggregation of reducers along with
## SumStats represent an aggregation of reducers along with
## mechanisms to handle various situations like the epoch ending
## or thresholds being crossed.
type Measurement: record {
## The interval at which this filter should be "broken" and the
## '$epoch_finished' callback called. The results are also reset
## at this time so any threshold based detection needs to be set to a
## number that should be expected to happen within this epoch.
## It's best to not access any global state outside
## of the variables given to the callbacks because there
## is no assurance provided as to where the callbacks
## will be executed on clusters.
type SumStat: record {
## The interval at which this filter should be "broken"
## and the '$epoch_finished' callback called. The
## results are also reset at this time so any threshold
## based detection needs to be set to a
## value that should be expected to happen within
## this epoch.
epoch: interval;
## The reducers for the measurement indexed by data id.
## The reducers for the SumStat
reducers: set[Reducer];
## Provide a function to calculate a value from the :bro:see:`Result`
## structure which will be used for thresholding.
threshold_val: function(key: Measurement::Key, result: Measurement::Result): count &optional;
## Provide a function to calculate a value from the
## :bro:see:`Result` structure which will be used
## for thresholding.
## This is required if a $threshold value is given.
threshold_val: function(key: SumStats::Key, result: SumStats::Result): count &optional;
## The threshold value for calling the $threshold_crossed callback.
## The threshold value for calling the
## $threshold_crossed callback.
threshold: count &optional;
## A series of thresholds for calling the $threshold_crossed callback.
## A series of thresholds for calling the
## $threshold_crossed callback.
threshold_series: vector of count &optional;
## A callback that is called when a threshold is crossed.
threshold_crossed: function(key: Measurement::Key, result: Measurement::Result) &optional;
threshold_crossed: function(key: SumStats::Key, result: SumStats::Result) &optional;
## A callback with the full collection of Results for this filter.
## It's best to not access any global state outside of the variables
## given to the callback because there is no assurance provided as to
## where the callback will be executed on clusters.
epoch_finished: function(rt: Measurement::ResultTable) &optional;
## A callback with the full collection of Results for
## this SumStat.
epoch_finished: function(rt: SumStats::ResultTable) &optional;
};
## Create a measurement.
global create: function(m: Measurement::Measurement);
## Create a summary statistic.
global create: function(m: SumStats::SumStat);
## Add data into a data point stream. This should be called when
## a script has measured some point value.
## Add data into an observation stream. This should be
## called when a script has measured some point value.
##
## id: The stream identifier that the data point represents.
## id: The observation stream identifier that the data
## point represents.
##
## key: The measurement key that the value is to be added to.
## key: The key that the value is related to.
##
## point: The data point to send into the stream.
global add_data: function(id: string, key: Measurement::Key, point: Measurement::DataPoint);
## obs: The data point to send into the stream.
global observe: function(id: string, key: SumStats::Key, obs: SumStats::Observation);
## Helper function to represent a :bro:type:`Measurement::Key` value as
## Helper function to represent a :bro:type:`SumStats::Key` value as
## a simple string.
##
## key: The metric key that is to be converted into a string.
##
## Returns: A string representation of the metric key.
global key2str: function(key: Measurement::Key): string;
## This event is generated for each new measurement that is created.
##
## m: The record which describes a measurement.
global new_measurement: event(m: Measurement);
global key2str: function(key: SumStats::Key): string;
}
redef record Reducer += {
# Internal use only. Provides a reference back to the related Measurement by it's ID.
# Internal use only. Provides a reference back to the related SumStats by it's ID.
mid: string &optional;
};
@ -142,16 +155,16 @@ type Thresholding: record {
threshold_series_index: count &default=0;
};
# Internal use only. For tracking thresholds per measurement and key.
# Internal use only. For tracking thresholds per sumstat and key.
global threshold_tracker: table[string] of table[Key] of Thresholding &optional;
redef record Measurement += {
redef record SumStats += {
# Internal use only (mostly for cluster coherency).
id: string &optional;
};
# Store of measurements indexed on the measurement id.
global measurement_store: table[string] of Measurement = table();
# Store of sumstats indexed on the sumstat id.
global stats_store: table[string] of SumStats = table();
# Store of reducers indexed on the data point stream id.
global reducer_store: table[string] of set[Reducer] = table();
@ -166,10 +179,10 @@ global thresholds_store: table[string, Key] of bool = table();
# key values are updated and the new val is given as the `val` argument.
# It's only prototyped here because cluster and non-cluster have separate
# implementations.
global data_added: function(m: Measurement, key: Key, result: Result);
global data_added: function(m: SumStats, key: Key, result: Result);
# Prototype the hook point for plugins to do calculations.
global add_to_reducer_hook: hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal);
global add_to_reducer_hook: hook(r: Reducer, val: double, data: Observation, rv: ResultVal);
# Prototype the hook point for plugins to initialize any result values.
global init_resultval_hook: hook(r: Reducer, rv: ResultVal);
# Prototype the hook point for plugins to merge Results.
@ -177,7 +190,7 @@ global compose_resultvals_hook: hook(result: ResultVal, rv1: ResultVal, rv2: Res
# Event that is used to "finish" measurements and adapt the measurement
# framework for clustered or non-clustered usage.
global finish_epoch: event(m: Measurement);
global finish_epoch: event(m: SumStats);
function key2str(key: Key): string
{
@ -186,7 +199,7 @@ function key2str(key: Key): string
out = fmt("%shost=%s", out, key$host);
if ( key?$str )
out = fmt("%s%sstr=%s", out, |out|==0 ? "" : ", ", key$str);
return fmt("measurement_key(%s)", out);
return fmt("sumstats_key(%s)", out);
}
function init_resultval(r: Reducer): ResultVal
@ -200,17 +213,12 @@ function compose_resultvals(rv1: ResultVal, rv2: ResultVal): ResultVal
{
local result: ResultVal;
# Merge $begin (take the earliest one)
result$begin = (rv1$begin < rv2$begin) ? rv1$begin : rv2$begin;
# Merge $end (take the latest one)
result$end = (rv1$end > rv2$end) ? rv1$end : rv2$end;
# Merge $num
result$num = rv1$num + rv2$num;
# Run the plugin composition hooks.
hook compose_resultvals_hook(result, rv1, rv2);
return result;
}
@ -243,59 +251,59 @@ function compose_results(r1: Result, r2: Result): Result
}
function reset(m: Measurement)
function reset(ss: SumStat)
{
if ( m$id in result_store )
delete result_store[m$id];
if ( ss$id in result_store )
delete result_store[ss$id];
result_store[m$id] = table();
threshold_tracker[m$id] = table();
result_store[ss$id] = table();
threshold_tracker[ss$id] = table();
}
function create(m: Measurement)
function create(ss: SumStat)
{
if ( (m?$threshold || m?$threshold_series) && ! m?$threshold_val )
if ( (ss?$threshold || ss?$threshold_series) && ! ss?$threshold_val )
{
Reporter::error("Measurement given a threshold with no $threshold_val function");
Reporter::error("SumStats given a threshold with no $threshold_val function");
}
if ( ! m?$id )
m$id=unique_id("");
threshold_tracker[m$id] = table();
measurement_store[m$id] = m;
if ( ! ss?$id )
ss$id=unique_id("");
threshold_tracker[ss$id] = table();
stats_store[ss$id] = ss;
for ( reducer in m$reducers )
for ( reducer in ss$reducers )
{
reducer$mid = m$id;
reducer$mid = ss$id;
if ( reducer$stream !in reducer_store )
reducer_store[reducer$stream] = set();
add reducer_store[reducer$stream][reducer];
}
reset(m);
schedule m$epoch { Measurement::finish_epoch(m) };
reset(ss);
schedule ss$epoch { SumStats::finish_epoch(ss) };
}
function add_data(id: string, key: Key, point: DataPoint)
function observe(id: string, key: Key, obs: Observation)
{
# Try to add the data to all of the defined reducers.
if ( id !in reducer_store )
return;
# Try to add the data to all of the defined reducers.
for ( r in reducer_store[id] )
{
# If this reducer has a predicate, run the predicate
# and skip this key if the predicate return false.
if ( r?$pred && ! r$pred(key, point) )
if ( r?$pred && ! r$pred(key, obs) )
next;
if ( r?$normalize_key )
key = r$normalize_key(copy(key));
local m = measurement_store[r$mid];
local ss = stats_store[r$mid];
if ( r$mid !in result_store )
result_store[m$id] = table();
result_store[ss$id] = table();
local results = result_store[r$mid];
if ( key !in results )
@ -312,56 +320,56 @@ function add_data(id: string, key: Key, point: DataPoint)
# If a string was given, fall back to 1.0 as the value.
local val = 1.0;
if ( point?$num || point?$dbl )
val = point?$dbl ? point$dbl : point$num;
if ( obs?$num || obs?$dbl )
val = obs?$dbl ? obs$dbl : obs$num;
hook add_to_reducer_hook(r, val, point, result_val);
data_added(m, key, result);
hook add_to_reducer_hook(r, val, obs, result_val);
data_added(ss, key, result);
}
}
# This function checks if a threshold has been crossed. It is also used as a method to implement
# mid-break-interval threshold crossing detection for cluster deployments.
function check_thresholds(m: Measurement, key: Key, result: Result, modify_pct: double): bool
function check_thresholds(ss: SumStat, key: Key, result: Result, modify_pct: double): bool
{
if ( ! (m?$threshold || m?$threshold_series) )
if ( ! (ss?$threshold || ss?$threshold_series) )
return F;
# Add in the extra ResultVals to make threshold_vals easier to write.
if ( |m$reducers| != |result| )
if ( |ss$reducers| != |result| )
{
for ( reducer in m$reducers )
for ( reducer in ss$reducers )
{
if ( reducer$stream !in result )
result[reducer$stream] = init_resultval(reducer);
}
}
local watch = m$threshold_val(key, result);
local watch = ss$threshold_val(key, result);
if ( modify_pct < 1.0 && modify_pct > 0.0 )
watch = double_to_count(floor(watch/modify_pct));
if ( m$id !in threshold_tracker )
threshold_tracker[m$id] = table();
local t_tracker = threshold_tracker[m$id];
if ( ss$id !in threshold_tracker )
threshold_tracker[ss$id] = table();
local t_tracker = threshold_tracker[ss$id];
if ( key !in t_tracker )
{
local ttmp: Thresholding;
t_tracker[key] = ttmp;
}
local tt = threshold_tracker[m$id][key];
local tt = t_tracker[key];
if ( m?$threshold && ! tt$is_threshold_crossed && watch >= m$threshold )
if ( ss?$threshold && ! tt$is_threshold_crossed && watch >= ss$threshold )
{
# Value crossed the threshold.
return T;
}
if ( m?$threshold_series &&
|m$threshold_series| >= tt$threshold_series_index &&
watch >= m$threshold_series[tt$threshold_series_index] )
if ( ss?$threshold_series &&
|ss$threshold_series| >= tt$threshold_series_index &&
watch >= ss$threshold_series[tt$threshold_series_index] )
{
# A threshold series was given and the value crossed the next
# value in the series.
@ -371,28 +379,28 @@ function check_thresholds(m: Measurement, key: Key, result: Result, modify_pct:
return F;
}
function threshold_crossed(m: Measurement, key: Key, result: Result)
function threshold_crossed(ss: SumStat, key: Key, result: Result)
{
# If there is no callback, there is no point in any of this.
if ( ! m?$threshold_crossed )
if ( ! ss?$threshold_crossed )
return;
# Add in the extra ResultVals to make threshold_crossed callbacks easier to write.
if ( |m$reducers| != |result| )
if ( |ss$reducers| != |result| )
{
for ( reducer in m$reducers )
for ( reducer in ss$reducers )
{
if ( reducer$stream !in result )
result[reducer$stream] = init_resultval(reducer);
}
}
m$threshold_crossed(key, result);
local tt = threshold_tracker[m$id][key];
ss$threshold_crossed(key, result);
local tt = threshold_tracker[ss$id][key];
tt$is_threshold_crossed = T;
# Bump up to the next threshold series index if a threshold series is being used.
if ( m?$threshold_series )
if ( ss?$threshold_series )
++tt$threshold_series_index;
}

View file

@ -1,8 +1,8 @@
@load ./main
module Measurement;
module SumStats;
event Measurement::finish_epoch(m: Measurement)
event SumStats::finish_epoch(m: SumStats)
{
if ( m$id in result_store )
{
@ -13,11 +13,11 @@ event Measurement::finish_epoch(m: Measurement)
reset(m);
}
schedule m$epoch { Measurement::finish_epoch(m) };
schedule m$epoch { SumStats::finish_epoch(m) };
}
function data_added(m: Measurement, key: Key, result: Result)
function data_added(m: SumStats, key: Key, result: Result)
{
if ( check_thresholds(m, key, result, 1.0) )
threshold_crossed(m, key, result);

View file

@ -2,7 +2,7 @@
@load ./max
@load ./min
@load ./sample
@load ./variance
@load ./std-dev
@load ./sum
@load ./unique
@load ./variance

View file

@ -1,6 +1,6 @@
@load base/frameworks/measurement
@load base/frameworks/sumstats
module Measurement;
module SumStats;
export {
redef enum Calculation += {
@ -14,7 +14,7 @@ export {
};
}
hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal)
hook add_to_reducer_hook(r: Reducer, val: double, data: Observation, rv: ResultVal)
{
if ( AVERAGE in r$apply )
{

View file

@ -1,6 +1,6 @@
@load base/frameworks/measurement
@load base/frameworks/sumstats
module Measurement;
module SumStats;
export {
redef enum Calculation += {
@ -14,7 +14,7 @@ export {
};
}
hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal)
hook add_to_reducer_hook(r: Reducer, val: double, data: Observation, rv: ResultVal)
{
if ( MAX in r$apply )
{

View file

@ -1,6 +1,6 @@
@load base/frameworks/measurement
@load base/frameworks/sumstats
module Measurement;
module SumStats;
export {
redef enum Calculation += {
@ -14,7 +14,7 @@ export {
};
}
hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal)
hook add_to_reducer_hook(r: Reducer, val: double, data: Observation, rv: ResultVal)
{
if ( MIN in r$apply )
{

View file

@ -1,35 +1,35 @@
@load base/frameworks/measurement
@load base/frameworks/sumstats
@load base/utils/queue
module Measurement;
module SumStats;
export {
redef record Reducer += {
## A number of sample DataPoints to collect.
## A number of sample Observations to collect.
samples: count &default=0;
};
redef record ResultVal += {
## This is the queue where samples
## are maintained. Use the
## :bro:see:`Measurement::get_samples` function
## :bro:see:`SumStats::get_samples` function
## to get a vector of the samples.
samples: Queue::Queue &optional;
};
## Get a vector of sample DataPoint values from a ResultVal.
global get_samples: function(rv: ResultVal): vector of DataPoint;
## Get a vector of sample Observation values from a ResultVal.
global get_samples: function(rv: ResultVal): vector of Observation;
}
function get_samples(rv: ResultVal): vector of DataPoint
function get_samples(rv: ResultVal): vector of Observation
{
local s: vector of DataPoint = vector();
local s: vector of Observation = vector();
if ( rv?$samples )
Queue::get_vector(rv$samples, s);
return s;
}
hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal)
hook add_to_reducer_hook(r: Reducer, val: double, data: Observation, rv: ResultVal)
{
if ( r$samples > 0 )
{

View file

@ -1,7 +1,7 @@
@load ./variance
@load base/frameworks/measurement
@load base/frameworks/sumstats
module Measurement;
module SumStats;
export {
redef enum Calculation += {
@ -22,7 +22,7 @@ function calc_std_dev(rv: ResultVal)
}
# This depends on the variance plugin which uses priority -5
hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal) &priority=-10
hook add_to_reducer_hook(r: Reducer, val: double, data: Observation, rv: ResultVal) &priority=-10
{
if ( STD_DEV in r$apply )
{

View file

@ -1,6 +1,6 @@
@load base/frameworks/measurement
@load base/frameworks/sumstats
module Measurement;
module SumStats;
export {
redef enum Calculation += {
@ -14,13 +14,13 @@ export {
sum: double &default=0.0;
};
type threshold_function: function(key: Measurement::Key, result: Measurement::Result): count;
type threshold_function: function(key: SumStats::Key, result: SumStats::Result): count;
global sum_threshold: function(data_id: string): threshold_function;
}
function sum_threshold(data_id: string): threshold_function
{
return function(key: Measurement::Key, result: Measurement::Result): count
return function(key: SumStats::Key, result: SumStats::Result): count
{
print fmt("data_id: %s", data_id);
print result;
@ -34,7 +34,7 @@ hook init_resultval_hook(r: Reducer, rv: ResultVal)
rv$sum = 0;
}
hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal)
hook add_to_reducer_hook(r: Reducer, val: double, data: Observation, rv: ResultVal)
{
if ( SUM in r$apply )
rv$sum += val;

View file

@ -1,6 +1,6 @@
@load base/frameworks/measurement
@load base/frameworks/sumstats
module Measurement;
module SumStats;
export {
redef enum Calculation += {
@ -20,10 +20,10 @@ redef record ResultVal += {
# because we don't want to trust that we can inspect the values
# since we will like move to a probalistic data structure in the future.
# TODO: in the future this will optionally be a hyperloglog structure
unique_vals: set[DataPoint] &optional;
unique_vals: set[Observation] &optional;
};
hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal)
hook add_to_reducer_hook(r: Reducer, val: double, data: Observation, rv: ResultVal)
{
if ( UNIQUE in r$apply )
{

View file

@ -1,7 +1,7 @@
@load ./average
@load base/frameworks/measurement
@load base/frameworks/sumstats
module Measurement;
module SumStats;
export {
redef enum Calculation += {
@ -29,7 +29,7 @@ function calc_variance(rv: ResultVal)
}
# Reduced priority since this depends on the average
hook add_to_reducer_hook(r: Reducer, val: double, data: DataPoint, rv: ResultVal) &priority=-5
hook add_to_reducer_hook(r: Reducer, val: double, data: Observation, rv: ResultVal) &priority=-5
{
if ( VARIANCE in r$apply )
{

View file

@ -5,6 +5,7 @@
##! Requires that :bro:id:`use_conn_size_analyzer` is set to T! The heuristic
##! is not attempted if the connection size analyzer isn't enabled.
@load base/protocols/conn
@load base/frameworks/notice
@load base/utils/site
@load base/utils/thresholds
@ -115,7 +116,7 @@ function check_ssh_connection(c: connection, done: bool)
# Responder must have sent fewer than 40 packets.
c$resp$num_pkts < 40 &&
# If there was a content gap we can't reliably do this heuristic.
c$conn$missed_bytes == 0)# &&
c?$conn && c$conn$missed_bytes == 0)# &&
# Only "normal" connections can count.
#c$conn?$conn_state && c$conn$conn_state in valid_states )
{

View file

@ -1,8 +1,8 @@
@load base/protocols/http
@load base/protocols/ssl
@load base/frameworks/measurement
@load base/frameworks/sumstats
module AppMeasurement;
module AppStats;
export {
redef enum Log::ID += { LOG };
@ -32,60 +32,60 @@ redef record connection += {
event bro_init() &priority=3
{
Log::create_stream(AppMeasurement::LOG, [$columns=Info]);
Log::create_stream(AppSumStats::LOG, [$columns=Info]);
local r1: Measurement::Reducer = [$stream="apps.bytes", $apply=set(Measurement::SUM)];
local r2: Measurement::Reducer = [$stream="apps.hits", $apply=set(Measurement::UNIQUE)];
Measurement::create([$epoch=break_interval,
$reducers=set(r1, r2),
$epoch_finished(data: Measurement::ResultTable) =
{
local l: Info;
l$ts = network_time();
l$ts_delta = break_interval;
for ( key in data )
{
local result = data[key];
l$app = key$str;
l$bytes = double_to_count(floor(result["apps.bytes"]$sum));
l$hits = result["apps.hits"]$num;
l$uniq_hosts = result["apps.hits"]$unique;
Log::write(LOG, l);
}
}]);
local r1: SumStats::Reducer = [$stream="apps.bytes", $apply=set(SumStats::SUM)];
local r2: SumStats::Reducer = [$stream="apps.hits", $apply=set(SumStats::UNIQUE)];
SumStats::create([$epoch=break_interval,
$reducers=set(r1, r2),
$epoch_finished(data: SumStats::ResultTable) =
{
local l: Info;
l$ts = network_time();
l$ts_delta = break_interval;
for ( key in data )
{
local result = data[key];
l$app = key$str;
l$bytes = double_to_count(floor(result["apps.bytes"]$sum));
l$hits = result["apps.hits"]$num;
l$uniq_hosts = result["apps.hits"]$unique;
Log::write(LOG, l);
}
}]);
}
function do_measurement(id: conn_id, hostname: string, size: count)
function add_sumstats(id: conn_id, hostname: string, size: count)
{
if ( /\.youtube\.com$/ in hostname && size > 512*1024 )
{
Measurement::add_data("apps.bytes", [$str="youtube"], [$num=size]);
Measurement::add_data("apps.hits", [$str="youtube"], [$str=cat(id$orig_h)]);
SumStats::observe("apps.bytes", [$str="youtube"], [$num=size]);
SumStats::observe("apps.hits", [$str="youtube"], [$str=cat(id$orig_h)]);
}
else if ( /(\.facebook\.com|\.fbcdn\.net)$/ in hostname && size > 20 )
{
Measurement::add_data("apps.bytes", [$str="facebook"], [$num=size]);
Measurement::add_data("apps.hits", [$str="facebook"], [$str=cat(id$orig_h)]);
SumStats::observe("apps.bytes", [$str="facebook"], [$num=size]);
SumStats::observe("apps.hits", [$str="facebook"], [$str=cat(id$orig_h)]);
}
else if ( /\.google\.com$/ in hostname && size > 20 )
{
Measurement::add_data("apps.bytes", [$str="google"], [$num=size]);
Measurement::add_data("apps.hits", [$str="google"], [$str=cat(id$orig_h)]);
SumStats::observe("apps.bytes", [$str="google"], [$num=size]);
SumStats::observe("apps.hits", [$str="google"], [$str=cat(id$orig_h)]);
}
else if ( /\.nflximg\.com$/ in hostname && size > 200*1024 )
{
Measurement::add_data("apps.bytes", [$str="netflix"], [$num=size]);
Measurement::add_data("apps.hits", [$str="netflix"], [$str=cat(id$orig_h)]);
SumStats::observe("apps.bytes", [$str="netflix"], [$num=size]);
SumStats::observe("apps.hits", [$str="netflix"], [$str=cat(id$orig_h)]);
}
else if ( /\.(pandora|p-cdn)\.com$/ in hostname && size > 512*1024 )
{
Measurement::add_data("apps.bytes", [$str="pandora"], [$num=size]);
Measurement::add_data("apps.hits", [$str="pandora"], [$str=cat(id$orig_h)]);
SumStats::observe("apps.bytes", [$str="pandora"], [$num=size]);
SumStats::observe("apps.hits", [$str="pandora"], [$str=cat(id$orig_h)]);
}
else if ( /\.gmail\.com$/ in hostname && size > 20 )
{
Measurement::add_data("apps.bytes", [$str="gmail"], [$num=size]);
Measurement::add_data("apps.hits", [$str="gmail"], [$str=cat(id$orig_h)]);
SumStats::observe("apps.bytes", [$str="gmail"], [$num=size]);
SumStats::observe("apps.hits", [$str="gmail"], [$str=cat(id$orig_h)]);
}
}
@ -99,11 +99,11 @@ event ssl_established(c: connection)
event connection_finished(c: connection)
{
if ( c?$resp_hostname )
do_measurement(c$id, c$resp_hostname, c$resp$size);
add_sumstats(c$id, c$resp_hostname, c$resp$size);
}
event HTTP::log_http(rec: HTTP::Info)
{
if( rec?$host )
do_measurement(rec$id, rec$host, rec$response_body_len);
add_sumstats(rec$id, rec$host, rec$response_body_len);
}

View file

@ -2,7 +2,7 @@
##! toward hosts that have sent low TTL packets.
##! It generates a notice when the number of ICMP Time Exceeded
##! messages for a source-destination pair exceeds threshold
@load base/frameworks/measurement
@load base/frameworks/sumstats
@load base/frameworks/signatures
@load-sigs ./detect-low-ttls.sig
@ -53,41 +53,41 @@ event bro_init() &priority=5
{
Log::create_stream(Traceroute::LOG, [$columns=Info, $ev=log_traceroute]);
local r1: Measurement::Reducer = [$stream="traceroute.time_exceeded", $apply=set(Measurement::UNIQUE)];
local r2: Measurement::Reducer = [$stream="traceroute.low_ttl_packet", $apply=set(Measurement::SUM)];
Measurement::create([$epoch=icmp_time_exceeded_interval,
$reducers=set(r1, r2),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
# Give a threshold value of zero depending on if the host
# sends a low ttl packet.
if ( require_low_ttl_packets && result["traceroute.low_ttl_packet"]$sum == 0 )
return 0;
else
return result["traceroute.time_exceeded"]$unique;
},
$threshold=icmp_time_exceeded_threshold,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local parts = split1(key$str, /-/);
local src = to_addr(parts[1]);
local dst = to_addr(parts[2]);
Log::write(LOG, [$ts=network_time(), $src=src, $dst=dst]);
NOTICE([$note=Traceroute::Detected,
$msg=fmt("%s seems to be running traceroute", src),
$src=src, $dst=dst,
$identifier=cat(src)]);
}]);
local r1: SumStats::Reducer = [$stream="traceroute.time_exceeded", $apply=set(SumStats::UNIQUE)];
local r2: SumStats::Reducer = [$stream="traceroute.low_ttl_packet", $apply=set(SumStats::SUM)];
SumStats::create([$epoch=icmp_time_exceeded_interval,
$reducers=set(r1, r2),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
# Give a threshold value of zero depending on if the host
# sends a low ttl packet.
if ( require_low_ttl_packets && result["traceroute.low_ttl_packet"]$sum == 0 )
return 0;
else
return result["traceroute.time_exceeded"]$unique;
},
$threshold=icmp_time_exceeded_threshold,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local parts = split1(key$str, /-/);
local src = to_addr(parts[1]);
local dst = to_addr(parts[2]);
Log::write(LOG, [$ts=network_time(), $src=src, $dst=dst]);
NOTICE([$note=Traceroute::Detected,
$msg=fmt("%s seems to be running traceroute", src),
$src=src, $dst=dst,
$identifier=cat(src)]);
}]);
}
# Low TTL packets are detected with a signature.
event signature_match(state: signature_state, msg: string, data: string)
{
if ( state$sig_id == /traceroute-detector.*/ )
Measurement::add_data("traceroute.low_ttl_packet", [$str=cat(state$conn$id$orig_h,"-",state$conn$id$resp_h)], [$num=1]);
SumStats::observe("traceroute.low_ttl_packet", [$str=cat(state$conn$id$orig_h,"-",state$conn$id$resp_h)], [$num=1]);
}
event icmp_time_exceeded(c: connection, icmp: icmp_conn, code: count, context: icmp_context)
{
Measurement::add_data("traceroute.time_exceeded", [$str=cat(context$id$orig_h,"-",context$id$resp_h)], [$str=cat(c$id$orig_h)]);
SumStats::observe("traceroute.time_exceeded", [$str=cat(context$id$orig_h,"-",context$id$resp_h)], [$str=cat(c$id$orig_h)]);
}

View file

@ -5,7 +5,7 @@
##! All the authors of the old scan.bro
@load base/frameworks/notice
@load base/frameworks/measurement
@load base/frameworks/sumstats
@load base/utils/time
@ -52,7 +52,7 @@ export {
}
#function check_addr_scan_threshold(key: Measurement::Key, val: Measurement::Result): bool
#function check_addr_scan_threshold(key: SumStats::Key, val: SumStats::Result): bool
# {
# # We don't need to do this if no custom thresholds are defined.
# if ( |addr_scan_custom_thresholds| == 0 )
@ -65,54 +65,54 @@ export {
event bro_init() &priority=5
{
local r1: Measurement::Reducer = [$stream="scan.addr.fail", $apply=set(Measurement::UNIQUE)];
Measurement::create([$epoch=addr_scan_interval,
$reducers=set(r1),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
return double_to_count(result["scan.addr.fail"]$unique);
},
#$threshold_func=check_addr_scan_threshold,
$threshold=addr_scan_threshold,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local r = result["scan.addr.fail"];
local side = Site::is_local_addr(key$host) ? "local" : "remote";
local dur = duration_to_mins_secs(r$end-r$begin);
local message=fmt("%s scanned at least %d unique hosts on port %s in %s", key$host, r$unique, key$str, dur);
NOTICE([$note=Address_Scan,
$src=key$host,
$p=to_port(key$str),
$sub=side,
$msg=message,
$identifier=cat(key$host)]);
}]);
local r1: SumStats::Reducer = [$stream="scan.addr.fail", $apply=set(SumStats::UNIQUE)];
SumStats::create([$epoch=addr_scan_interval,
$reducers=set(r1),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["scan.addr.fail"]$unique);
},
#$threshold_func=check_addr_scan_threshold,
$threshold=addr_scan_threshold,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["scan.addr.fail"];
local side = Site::is_local_addr(key$host) ? "local" : "remote";
local dur = duration_to_mins_secs(r$end-r$begin);
local message=fmt("%s scanned at least %d unique hosts on port %s in %s", key$host, r$unique, key$str, dur);
NOTICE([$note=Address_Scan,
$src=key$host,
$p=to_port(key$str),
$sub=side,
$msg=message,
$identifier=cat(key$host)]);
}]);
# Note: port scans are tracked similar to: table[src_ip, dst_ip] of set(port);
local r2: Measurement::Reducer = [$stream="scan.port.fail", $apply=set(Measurement::UNIQUE)];
Measurement::create([$epoch=port_scan_interval,
$reducers=set(r2),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
return double_to_count(result["scan.port.fail"]$unique);
},
$threshold=port_scan_threshold,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local r = result["scan.port.fail"];
local side = Site::is_local_addr(key$host) ? "local" : "remote";
local dur = duration_to_mins_secs(r$end-r$begin);
local message = fmt("%s scanned at least %d unique ports of host %s in %s", key$host, r$unique, key$str, dur);
NOTICE([$note=Port_Scan,
$src=key$host,
$dst=to_addr(key$str),
$sub=side,
$msg=message,
$identifier=cat(key$host)]);
}]);
local r2: SumStats::Reducer = [$stream="scan.port.fail", $apply=set(SumStats::UNIQUE)];
SumStats::create([$epoch=port_scan_interval,
$reducers=set(r2),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["scan.port.fail"]$unique);
},
$threshold=port_scan_threshold,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["scan.port.fail"];
local side = Site::is_local_addr(key$host) ? "local" : "remote";
local dur = duration_to_mins_secs(r$end-r$begin);
local message = fmt("%s scanned at least %d unique ports of host %s in %s", key$host, r$unique, key$str, dur);
NOTICE([$note=Port_Scan,
$src=key$host,
$dst=to_addr(key$str),
$sub=side,
$msg=message,
$identifier=cat(key$host)]);
}]);
}
function add_metrics(id: conn_id, reverse: bool)
function add_sumstats(id: conn_id, reverse: bool)
{
local scanner = id$orig_h;
local victim = id$resp_h;
@ -150,10 +150,10 @@ function add_metrics(id: conn_id, reverse: bool)
# return F;
if ( hook Scan::addr_scan_policy(scanner, victim, scanned_port) )
Measurement::add_data("scan.addr.fail", [$host=scanner, $str=cat(scanned_port)], [$str=cat(victim)]);
SumStats::observe("scan.addr.fail", [$host=scanner, $str=cat(scanned_port)], [$str=cat(victim)]);
if ( hook Scan::port_scan_policy(scanner, victim, scanned_port) )
Measurement::add_data("scan.port.fail", [$host=scanner, $str=cat(victim)], [$str=cat(scanned_port)]);
SumStats::observe("scan.port.fail", [$host=scanner, $str=cat(victim)], [$str=cat(scanned_port)]);
}
function is_failed_conn(c: connection): bool
@ -193,7 +193,7 @@ event connection_attempt(c: connection)
if ( "H" in c$history )
is_reverse_scan = T;
add_metrics(c$id, is_reverse_scan);
add_sumstats(c$id, is_reverse_scan);
}
## Generated for a rejected TCP connection. This event
@ -206,7 +206,7 @@ event connection_rejected(c: connection)
if ( "s" in c$history )
is_reverse_scan = T;
add_metrics(c$id, is_reverse_scan);
add_sumstats(c$id, is_reverse_scan);
}
## Generated when an endpoint aborted a TCP connection.
@ -215,16 +215,16 @@ event connection_rejected(c: connection)
event connection_reset(c: connection)
{
if ( is_failed_conn(c) )
add_metrics(c$id, F);
add_sumstats(c$id, F);
else if ( is_reverse_failed_conn(c) )
add_metrics(c$id, T);
add_sumstats(c$id, T);
}
## Generated for each still-open connection when Bro terminates.
event connection_pending(c: connection)
{
if ( is_failed_conn(c) )
add_metrics(c$id, F);
add_sumstats(c$id, F);
else if ( is_reverse_failed_conn(c) )
add_metrics(c$id, T);
add_sumstats(c$id, T);
}

View file

@ -1,6 +1,6 @@
@load base/protocols/ftp
@load base/frameworks/measurement
@load base/frameworks/sumstats
@load base/utils/time
@ -25,25 +25,25 @@ export {
event bro_init()
{
local r1: Measurement::Reducer = [$stream="ftp.failed_auth", $apply=set(Measurement::UNIQUE)];
Measurement::create([$epoch=bruteforce_measurement_interval,
$reducers=set(r1),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
return result["ftp.failed_auth"]$num;
},
$threshold=bruteforce_threshold,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local r = result["ftp.failed_auth"];
local dur = duration_to_mins_secs(r$end-r$begin);
local plural = r$unique>1 ? "s" : "";
local message = fmt("%s had %d failed logins on %d FTP server%s in %s", key$host, r$num, r$unique, plural, dur);
NOTICE([$note=FTP::Bruteforcing,
$src=key$host,
$msg=message,
$identifier=cat(key$host)]);
}]);
local r1: SumStats::Reducer = [$stream="ftp.failed_auth", $apply=set(SumStats::UNIQUE)];
SumStats::create([$epoch=bruteforce_measurement_interval,
$reducers=set(r1),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return result["ftp.failed_auth"]$num;
},
$threshold=bruteforce_threshold,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["ftp.failed_auth"];
local dur = duration_to_mins_secs(r$end-r$begin);
local plural = r$unique>1 ? "s" : "";
local message = fmt("%s had %d failed logins on %d FTP server%s in %s", key$host, r$num, r$unique, plural, dur);
NOTICE([$note=FTP::Bruteforcing,
$src=key$host,
$msg=message,
$identifier=cat(key$host)]);
}]);
}
event ftp_reply(c: connection, code: count, msg: string, cont_resp: bool)
@ -52,6 +52,6 @@ event ftp_reply(c: connection, code: count, msg: string, cont_resp: bool)
if ( cmd == "USER" || cmd == "PASS" )
{
if ( FTP::parse_ftp_reply_code(code)$x == 5 )
Measurement::add_data("ftp.failed_auth", [$host=c$id$orig_h], [$str=cat(c$id$resp_h)]);
SumStats::observe("ftp.failed_auth", [$host=c$id$orig_h], [$str=cat(c$id$resp_h)]);
}
}

View file

@ -1,7 +1,7 @@
##! SQL injection attack detection in HTTP.
@load base/frameworks/notice
@load base/frameworks/measurement
@load base/frameworks/sumstats
@load base/protocols/http
module HTTP;
@ -50,7 +50,7 @@ export {
| /\/\*![[:digit:]]{5}.*?\*\// &redef;
}
function format_sqli_samples(samples: vector of Measurement::DataPoint): string
function format_sqli_samples(samples: vector of SumStats::Observation): string
{
local ret = "SQL Injection samples\n---------------------";
for ( i in samples )
@ -63,41 +63,41 @@ event bro_init() &priority=3
# Add filters to the metrics so that the metrics framework knows how to
# determine when it looks like an actual attack and how to respond when
# thresholds are crossed.
local r1: Measurement::Reducer = [$stream="http.sqli.attacker", $apply=set(Measurement::SUM), $samples=collect_SQLi_samples];
Measurement::create([$epoch=sqli_requests_interval,
$reducers=set(r1),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
return double_to_count(result["http.sqli.attacker"]$sum);
},
$threshold=sqli_requests_threshold,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local r = result["http.sqli.attacker"];
NOTICE([$note=SQL_Injection_Attacker,
$msg="An SQL injection attacker was discovered!",
$email_body_sections=vector(format_sqli_samples(Measurement::get_samples(r))),
$src=key$host,
$identifier=cat(key$host)]);
}]);
local r1: SumStats::Reducer = [$stream="http.sqli.attacker", $apply=set(SumStats::SUM), $samples=collect_SQLi_samples];
SumStats::create([$epoch=sqli_requests_interval,
$reducers=set(r1),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["http.sqli.attacker"]$sum);
},
$threshold=sqli_requests_threshold,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["http.sqli.attacker"];
NOTICE([$note=SQL_Injection_Attacker,
$msg="An SQL injection attacker was discovered!",
$email_body_sections=vector(format_sqli_samples(SumStats::get_samples(r))),
$src=key$host,
$identifier=cat(key$host)]);
}]);
local r2: Measurement::Reducer = [$stream="http.sqli.victim", $apply=set(Measurement::SUM), $samples=collect_SQLi_samples];
Measurement::create([$epoch=sqli_requests_interval,
$reducers=set(r2),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
return double_to_count(result["http.sqli.victim"]$sum);
},
$threshold=sqli_requests_threshold,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local r = result["http.sqli.victim"];
NOTICE([$note=SQL_Injection_Victim,
$msg="An SQL injection victim was discovered!",
$email_body_sections=vector(format_sqli_samples(Measurement::get_samples(r))),
$src=key$host,
$identifier=cat(key$host)]);
}]);
local r2: SumStats::Reducer = [$stream="http.sqli.victim", $apply=set(SumStats::SUM), $samples=collect_SQLi_samples];
SumStats::create([$epoch=sqli_requests_interval,
$reducers=set(r2),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["http.sqli.victim"]$sum);
},
$threshold=sqli_requests_threshold,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["http.sqli.victim"];
NOTICE([$note=SQL_Injection_Victim,
$msg="An SQL injection victim was discovered!",
$email_body_sections=vector(format_sqli_samples(SumStats::get_samples(r))),
$src=key$host,
$identifier=cat(key$host)]);
}]);
}
event http_request(c: connection, method: string, original_URI: string,
@ -107,7 +107,7 @@ event http_request(c: connection, method: string, original_URI: string,
{
add c$http$tags[URI_SQLI];
Measurement::add_data("http.sqli.attacker", [$host=c$id$orig_h], [$str=original_URI]);
Measurement::add_data("http.sqli.victim", [$host=c$id$resp_h], [$str=original_URI]);
SumStats::observe("http.sqli.attacker", [$host=c$id$orig_h], [$str=original_URI]);
SumStats::observe("http.sqli.victim", [$host=c$id$resp_h], [$str=original_URI]);
}
}

View file

@ -18,12 +18,12 @@ event bro_init() &priority=5
{
Metrics::add_filter("smtp.mailfrom", [$every=breaks,
$measure=set(Metrics::SUM),
$pred(index: Metrics::Index, data: Metrics::DataPoint) = {
$pred(index: Metrics::Index, data: Metrics::Observation) = {
return addr_matches_host(index$host, LOCAL_HOSTS);
}]);
Metrics::add_filter("smtp.messages", [$every=breaks,
$measure=set(Metrics::SUM),
$pred(index: Metrics::Index, data: Metrics::DataPoint) = {
$pred(index: Metrics::Index, data: Metrics::Observation) = {
return addr_matches_host(index$host, LOCAL_HOSTS);
}]);
}

View file

@ -2,7 +2,7 @@
##! bruteforcing over SSH.
@load base/protocols/ssh
@load base/frameworks/measurement
@load base/frameworks/sumstats
@load base/frameworks/notice
@load base/frameworks/intel
@ -42,27 +42,27 @@ export {
event bro_init()
{
local r1: Measurement::Reducer = [$stream="ssh.login.failure", $apply=set(Measurement::SUM)];
Measurement::create([$epoch=guessing_timeout,
$reducers=set(r1),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
return double_to_count(result["ssh.login.failure"]$sum);
},
$threshold=password_guesses_limit,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local r = result["ssh.login.failure"];
# Generate the notice.
NOTICE([$note=Password_Guessing,
$msg=fmt("%s appears to be guessing SSH passwords (seen in %d connections).", key$host, r$num),
$src=key$host,
$identifier=cat(key$host)]);
# Insert the guesser into the intel framework.
Intel::insert([$host=key$host,
$meta=[$source="local",
$desc=fmt("Bro observed %d apparently failed SSH connections.", r$num)]]);
}]);
local r1: SumStats::Reducer = [$stream="ssh.login.failure", $apply=set(SumStats::SUM)];
SumStats::create([$epoch=guessing_timeout,
$reducers=set(r1),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["ssh.login.failure"]$sum);
},
$threshold=password_guesses_limit,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["ssh.login.failure"];
# Generate the notice.
NOTICE([$note=Password_Guessing,
$msg=fmt("%s appears to be guessing SSH passwords (seen in %d connections).", key$host, r$num),
$src=key$host,
$identifier=cat(key$host)]);
# Insert the guesser into the intel framework.
Intel::insert([$host=key$host,
$meta=[$source="local",
$desc=fmt("Bro observed %d apparently failed SSH connections.", r$num)]]);
}]);
}
event SSH::heuristic_successful_login(c: connection)
@ -82,5 +82,5 @@ event SSH::heuristic_failed_login(c: connection)
# be ignored.
if ( ! (id$orig_h in ignore_guessers &&
id$resp_h in ignore_guessers[id$orig_h]) )
Measurement::add_data("ssh.login.failure", [$host=id$orig_h], [$num=1]);
SumStats::observe("ssh.login.failure", [$host=id$orig_h], [$num=1]);
}

View file

@ -1,83 +0,0 @@
# @TEST-SERIALIZE: comm
#
# @TEST-EXEC: btest-bg-run manager-1 BROPATH=$BROPATH:.. CLUSTER_NODE=manager-1 bro %INPUT
# @TEST-EXEC: sleep 1
# @TEST-EXEC: btest-bg-run worker-1 BROPATH=$BROPATH:.. CLUSTER_NODE=worker-1 bro %INPUT
# @TEST-EXEC: btest-bg-run worker-2 BROPATH=$BROPATH:.. CLUSTER_NODE=worker-2 bro %INPUT
# @TEST-EXEC: btest-bg-wait 15
# @TEST-EXEC: btest-diff manager-1/.stdout
@TEST-START-FILE cluster-layout.bro
redef Cluster::nodes = {
["manager-1"] = [$node_type=Cluster::MANAGER, $ip=127.0.0.1, $p=37757/tcp, $workers=set("worker-1", "worker-2")],
["worker-1"] = [$node_type=Cluster::WORKER, $ip=127.0.0.1, $p=37760/tcp, $manager="manager-1", $interface="eth0"],
["worker-2"] = [$node_type=Cluster::WORKER, $ip=127.0.0.1, $p=37761/tcp, $manager="manager-1", $interface="eth1"],
};
@TEST-END-FILE
redef Log::default_rotation_interval = 0secs;
global n = 0;
event bro_init() &priority=5
{
local r1: Measurement::Reducer = [$stream="test.metric", $apply=set(Measurement::SUM, Measurement::MIN, Measurement::MAX, Measurement::AVERAGE, Measurement::STD_DEV, Measurement::VARIANCE, Measurement::UNIQUE)];
Measurement::create([$epoch=5secs,
$reducers=set(r1),
$epoch_finished(rt: Measurement::ResultTable) =
{
for ( key in rt )
{
local r = rt[key]["test.metric"];
print fmt("Host: %s - num:%d - sum:%.1f - avg:%.1f - max:%.1f - min:%.1f - var:%.1f - std_dev:%.1f - unique:%d", key$host, r$num, r$sum, r$average, r$max, r$min, r$variance, r$std_dev, r$unique);
}
terminate();
}
]);
}
event remote_connection_closed(p: event_peer)
{
terminate();
}
global ready_for_data: event();
redef Cluster::manager2worker_events += /^ready_for_data$/;
event ready_for_data()
{
if ( Cluster::node == "worker-1" )
{
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=34]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=30]);
Measurement::add_data("test.metric", [$host=6.5.4.3], [$num=1]);
Measurement::add_data("test.metric", [$host=7.2.1.5], [$num=54]);
}
if ( Cluster::node == "worker-2" )
{
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=75]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=30]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=3]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=57]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=52]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=61]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=95]);
Measurement::add_data("test.metric", [$host=6.5.4.3], [$num=5]);
Measurement::add_data("test.metric", [$host=7.2.1.5], [$num=91]);
Measurement::add_data("test.metric", [$host=10.10.10.10], [$num=5]);
}
}
@if ( Cluster::local_node_type() == Cluster::MANAGER )
global peer_count = 0;
event remote_connection_handshake_done(p: event_peer) &priority=-5
{
++peer_count;
if ( peer_count == 2 )
event ready_for_data();
}
@endif

View file

@ -1,34 +0,0 @@
# @TEST-EXEC: bro %INPUT
# @TEST-EXEC: btest-diff .stdout
event bro_init() &priority=5
{
local r1: Measurement::Reducer = [$stream="test.metric",
$apply=set(Measurement::SUM,
Measurement::VARIANCE,
Measurement::AVERAGE,
Measurement::MAX,
Measurement::MIN,
Measurement::STD_DEV,
Measurement::UNIQUE)];
Measurement::create([$epoch=3secs,
$reducers=set(r1),
$epoch_finished(data: Measurement::ResultTable) =
{
for ( key in data )
{
local r = data[key]["test.metric"];
print fmt("Host: %s - num:%d - sum:%.1f - var:%.1f - avg:%.1f - max:%.1f - min:%.1f - std_dev:%.1f - unique:%d", key$host, r$num, r$sum, r$variance, r$average, r$max, r$min, r$std_dev, r$unique);
}
}
]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=5]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=22]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=94]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=50]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=50]);
Measurement::add_data("test.metric", [$host=6.5.4.3], [$num=2]);
Measurement::add_data("test.metric", [$host=7.2.1.5], [$num=1]);
}

View file

@ -1,73 +0,0 @@
# @TEST-EXEC: bro %INPUT
# @TEST-EXEC: btest-diff .stdout
redef enum Notice::Type += {
Test_Notice,
};
event bro_init() &priority=5
{
local r1: Measurement::Reducer = [$stream="test.metric", $apply=set(Measurement::SUM)];
Measurement::create([$epoch=3secs,
$reducers=set(r1),
#$threshold_val = Measurement::sum_threshold("test.metric"),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
return double_to_count(result["test.metric"]$sum);
},
$threshold=5,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local r = result["test.metric"];
print fmt("THRESHOLD: hit a threshold value at %.0f for %s", r$sum, Measurement::key2str(key));
}
]);
local r2: Measurement::Reducer = [$stream="test.metric", $apply=set(Measurement::SUM)];
Measurement::create([$epoch=3secs,
$reducers=set(r2),
#$threshold_val = Measurement::sum_threshold("test.metric"),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
return double_to_count(result["test.metric"]$sum);
},
$threshold_series=vector(3,6,800),
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local r = result["test.metric"];
print fmt("THRESHOLD_SERIES: hit a threshold series value at %.0f for %s", r$sum, Measurement::key2str(key));
}
]);
local r3: Measurement::Reducer = [$stream="test.metric", $apply=set(Measurement::SUM)];
local r4: Measurement::Reducer = [$stream="test.metric2", $apply=set(Measurement::SUM)];
Measurement::create([$epoch=3secs,
$reducers=set(r3, r4),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
# Calculate a ratio between sums of two reducers.
if ( "test.metric2" in result && "test.metric" in result &&
result["test.metric"]$sum > 0 )
return double_to_count(result["test.metric2"]$sum / result["test.metric"]$sum);
else
return 0;
},
# Looking for metric2 sum to be 5 times the sum of metric
$threshold=5,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
local thold = result["test.metric2"]$sum / result["test.metric"]$sum;
print fmt("THRESHOLD WITH RATIO BETWEEN REDUCERS: hit a threshold value at %.0fx for %s", thold, Measurement::key2str(key));
}
]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=3]);
Measurement::add_data("test.metric", [$host=6.5.4.3], [$num=2]);
Measurement::add_data("test.metric", [$host=7.2.1.5], [$num=1]);
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=3]);
Measurement::add_data("test.metric", [$host=7.2.1.5], [$num=1000]);
Measurement::add_data("test.metric2", [$host=7.2.1.5], [$num=10]);
Measurement::add_data("test.metric2", [$host=7.2.1.5], [$num=1000]);
Measurement::add_data("test.metric2", [$host=7.2.1.5], [$num=54321]);
}

View file

@ -0,0 +1,82 @@
# @TEST-SERIALIZE: comm
#
# @TEST-EXEC: btest-bg-run manager-1 BROPATH=$BROPATH:.. CLUSTER_NODE=manager-1 bro %INPUT
# @TEST-EXEC: sleep 1
# @TEST-EXEC: btest-bg-run worker-1 BROPATH=$BROPATH:.. CLUSTER_NODE=worker-1 bro %INPUT
# @TEST-EXEC: btest-bg-run worker-2 BROPATH=$BROPATH:.. CLUSTER_NODE=worker-2 bro %INPUT
# @TEST-EXEC: btest-bg-wait 15
# @TEST-EXEC: btest-diff manager-1/.stdout
@TEST-START-FILE cluster-layout.bro
redef Cluster::nodes = {
["manager-1"] = [$node_type=Cluster::MANAGER, $ip=127.0.0.1, $p=37757/tcp, $workers=set("worker-1", "worker-2")],
["worker-1"] = [$node_type=Cluster::WORKER, $ip=127.0.0.1, $p=37760/tcp, $manager="manager-1", $interface="eth0"],
["worker-2"] = [$node_type=Cluster::WORKER, $ip=127.0.0.1, $p=37761/tcp, $manager="manager-1", $interface="eth1"],
};
@TEST-END-FILE
redef Log::default_rotation_interval = 0secs;
global n = 0;
event bro_init() &priority=5
{
local r1: SumStats::Reducer = [$stream="test.metric", $apply=set(SumStats::SUM, SumStats::MIN, SumStats::MAX, SumStats::AVERAGE, SumStats::STD_DEV, SumStats::VARIANCE, SumStats::UNIQUE)];
SumStats::create([$epoch=5secs,
$reducers=set(r1),
$epoch_finished(rt: SumStats::ResultTable) =
{
for ( key in rt )
{
local r = rt[key]["test.metric"];
print fmt("Host: %s - num:%d - sum:%.1f - avg:%.1f - max:%.1f - min:%.1f - var:%.1f - std_dev:%.1f - unique:%d", key$host, r$num, r$sum, r$average, r$max, r$min, r$variance, r$std_dev, r$unique);
}
terminate();
}]);
}
event remote_connection_closed(p: event_peer)
{
terminate();
}
global ready_for_data: event();
redef Cluster::manager2worker_events += /^ready_for_data$/;
event ready_for_data()
{
if ( Cluster::node == "worker-1" )
{
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=34]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=30]);
SumStats::observe("test.metric", [$host=6.5.4.3], [$num=1]);
SumStats::observe("test.metric", [$host=7.2.1.5], [$num=54]);
}
if ( Cluster::node == "worker-2" )
{
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=75]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=30]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=3]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=57]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=52]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=61]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=95]);
SumStats::observe("test.metric", [$host=6.5.4.3], [$num=5]);
SumStats::observe("test.metric", [$host=7.2.1.5], [$num=91]);
SumStats::observe("test.metric", [$host=10.10.10.10], [$num=5]);
}
}
@if ( Cluster::local_node_type() == Cluster::MANAGER )
global peer_count = 0;
event remote_connection_handshake_done(p: event_peer) &priority=-5
{
++peer_count;
if ( peer_count == 2 )
event ready_for_data();
}
@endif

View file

@ -0,0 +1,34 @@
# @TEST-EXEC: bro %INPUT
# @TEST-EXEC: btest-diff .stdout
event bro_init() &priority=5
{
local r1: SumStats::Reducer = [$stream="test.metric",
$apply=set(SumStats::SUM,
SumStats::VARIANCE,
SumStats::AVERAGE,
SumStats::MAX,
SumStats::MIN,
SumStats::STD_DEV,
SumStats::UNIQUE)];
SumStats::create([$epoch=3secs,
$reducers=set(r1),
$epoch_finished(data: SumStats::ResultTable) =
{
for ( key in data )
{
local r = data[key]["test.metric"];
print fmt("Host: %s - num:%d - sum:%.1f - var:%.1f - avg:%.1f - max:%.1f - min:%.1f - std_dev:%.1f - unique:%d", key$host, r$num, r$sum, r$variance, r$average, r$max, r$min, r$std_dev, r$unique);
}
}
]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=5]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=22]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=94]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=50]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=50]);
SumStats::observe("test.metric", [$host=6.5.4.3], [$num=2]);
SumStats::observe("test.metric", [$host=7.2.1.5], [$num=1]);
}

View file

@ -19,20 +19,19 @@ redef Log::default_rotation_interval = 0secs;
event bro_init() &priority=5
{
local r1: Measurement::Reducer = [$stream="test.metric", $apply=set(Measurement::SUM)];
Measurement::create([$epoch=1hr,
$reducers=set(r1),
$threshold_val(key: Measurement::Key, result: Measurement::Result) =
{
return double_to_count(result["test.metric"]$sum);
},
$threshold=100,
$threshold_crossed(key: Measurement::Key, result: Measurement::Result) =
{
print fmt("A test metric threshold was crossed with a value of: %.1f", result["test.metric"]$sum);
terminate();
}
]);
local r1: SumStats::Reducer = [$stream="test.metric", $apply=set(SumStats::SUM)];
SumStats::create([$epoch=1hr,
$reducers=set(r1),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["test.metric"]$sum);
},
$threshold=100,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
print fmt("A test metric threshold was crossed with a value of: %.1f", result["test.metric"]$sum);
terminate();
}]);
}
event remote_connection_closed(p: event_peer)
@ -40,12 +39,12 @@ event remote_connection_closed(p: event_peer)
terminate();
}
event do_metrics(i: count)
event do_stats(i: count)
{
# Worker-1 will trigger an intermediate update and then if everything
# works correctly, the data from worker-2 will hit the threshold and
# should trigger the notice.
Measurement::add_data("test.metric", [$host=1.2.3.4], [$num=i]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=i]);
}
event remote_connection_handshake_done(p: event_peer)
@ -53,8 +52,8 @@ event remote_connection_handshake_done(p: event_peer)
if ( p$descr == "manager-1" )
{
if ( Cluster::node == "worker-1" )
schedule 0.1sec { do_metrics(1) };
schedule 0.1sec { do_stats(1) };
if ( Cluster::node == "worker-2" )
schedule 0.5sec { do_metrics(99) };
schedule 0.5sec { do_stats(99) };
}
}

View file

@ -0,0 +1,73 @@
# @TEST-EXEC: bro %INPUT
# @TEST-EXEC: btest-diff .stdout
redef enum Notice::Type += {
Test_Notice,
};
event bro_init() &priority=5
{
local r1: SumStats::Reducer = [$stream="test.metric", $apply=set(SumStats::SUM)];
SumStats::create([$epoch=3secs,
$reducers=set(r1),
#$threshold_val = SumStats::sum_threshold("test.metric"),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["test.metric"]$sum);
},
$threshold=5,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["test.metric"];
print fmt("THRESHOLD: hit a threshold value at %.0f for %s", r$sum, SumStats::key2str(key));
}
]);
local r2: SumStats::Reducer = [$stream="test.metric", $apply=set(SumStats::SUM)];
SumStats::create([$epoch=3secs,
$reducers=set(r2),
#$threshold_val = SumStats::sum_threshold("test.metric"),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["test.metric"]$sum);
},
$threshold_series=vector(3,6,800),
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["test.metric"];
print fmt("THRESHOLD_SERIES: hit a threshold series value at %.0f for %s", r$sum, SumStats::key2str(key));
}
]);
local r3: SumStats::Reducer = [$stream="test.metric", $apply=set(SumStats::SUM)];
local r4: SumStats::Reducer = [$stream="test.metric2", $apply=set(SumStats::SUM)];
SumStats::create([$epoch=3secs,
$reducers=set(r3, r4),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
# Calculate a ratio between sums of two reducers.
if ( "test.metric2" in result && "test.metric" in result &&
result["test.metric"]$sum > 0 )
return double_to_count(result["test.metric2"]$sum / result["test.metric"]$sum);
else
return 0;
},
# Looking for metric2 sum to be 5 times the sum of metric
$threshold=5,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local thold = result["test.metric2"]$sum / result["test.metric"]$sum;
print fmt("THRESHOLD WITH RATIO BETWEEN REDUCERS: hit a threshold value at %.0fx for %s", thold, SumStats::key2str(key));
}
]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=3]);
SumStats::observe("test.metric", [$host=6.5.4.3], [$num=2]);
SumStats::observe("test.metric", [$host=7.2.1.5], [$num=1]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=3]);
SumStats::observe("test.metric", [$host=7.2.1.5], [$num=1000]);
SumStats::observe("test.metric2", [$host=7.2.1.5], [$num=10]);
SumStats::observe("test.metric2", [$host=7.2.1.5], [$num=1000]);
SumStats::observe("test.metric2", [$host=7.2.1.5], [$num=54321]);
}