zeek/scripts
Jon Siwek 35827eeb31 Add rate-limiting sampling mechanism for weird events
The generation of weird events, by default, are now rate-limited
according to these tunable options:

  - Weird::sampling_whitelist
  - Weird::sampling_threshold
  - Weird::sampling_rate
  - Weird::sampling_duration

The new get_reporter_stats() BIF also allows one to query the
total number of weirds generated (pre-sampling) which the new
policy/misc/weird-stats.bro script uses periodically to populate
a weird_stats.log.

There's also new reporter BIFs to allow generating weirds from the
script-layer such that they go through the same, internal
rate-limiting/sampling mechanisms:

  - Reporter::conn_weird
  - Reporter::flow_weird
  - Reporter::net_weird

Some of the code was adapted from previous work by Johanna Amann.
2018-07-26 19:57:36 -05:00
..
base Add rate-limiting sampling mechanism for weird events 2018-07-26 19:57:36 -05:00
broxygen Merge topic/actor-system throug a squashed commit. 2018-05-18 22:39:23 +00:00
policy Add rate-limiting sampling mechanism for weird events 2018-07-26 19:57:36 -05:00
site Fix for BIT-1927: notice/extend-email relocation 2018-05-10 09:13:52 -04:00
CMakeLists.txt Add a new site policy script local-logger.bro 2016-10-31 20:43:50 -05:00
test-all-policy.bro Add rate-limiting sampling mechanism for weird events 2018-07-26 19:57:36 -05:00