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2 commits

Author SHA1 Message Date
Robin Sommer
789cb376fd GH-239: Rename bro to zeek, bro-config to zeek-config, and bro-path-dev to zeek-path-dev.
This also installs symlinks from "zeek" and "bro-config" to a wrapper
script that prints a deprecation warning.

The btests pass, but this is still WIP. broctl renaming is still
missing.

#239
2019-05-01 21:43:45 +00:00
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