zeek/scripts/base/frameworks/intel
Christian Kreibich 1bd658da8f Support for log filter policy hooks
This adds a "policy" hook into the logging framework's streams and
filters to replace the existing log filter predicates. The hook
signature is as follows:

    hook(rec: any, id: Log::ID, filter: Log::Filter);

The logging manager invokes hooks on each log record. Hooks can veto
log records via a break, and modify them if necessary. Log filters
inherit the stream-level hook, but can override or remove the hook as
needed.

The distribution's existing log streams now come with pre-defined
hooks that users can add handlers to. Their name is standardized as
"log_policy" by convention, with additional suffixes when a module
provides multiple streams. The following adds a handler to the Conn
module's default log policy hook:

    hook Conn::log_policy(rec: Conn::Info, id: Log::ID, filter: Log::Filter)
            {
            if ( some_veto_reason(rec) )
                break;
            }

By default, this handler will get invoked for any log filter
associated with the Conn::LOG stream.

The existing predicates are deprecated for removal in 4.1 but continue
to work.
2020-09-30 12:32:45 -07:00
..
__load__.zeek Rename all scripts to have ".zeek" file extension 2019-04-11 21:12:40 -05:00
cluster.zeek Merge remote-tracking branch 'origin/topic/seth/zeek_init' 2019-04-19 11:24:29 -07:00
files.zeek Rename all scripts to have ".zeek" file extension 2019-04-11 21:12:40 -05:00
input.zeek Merge branch 'export_intel_events' of https://github.com/mauropalumbo75/zeek 2019-08-09 09:36:19 -07:00
main.zeek Support for log filter policy hooks 2020-09-30 12:32:45 -07:00
README Add README files for most Bro frameworks 2013-10-11 00:19:37 -05:00

The intelligence framework provides a way to store and query intelligence
data (such as IP addresses or strings). Metadata can also be associated
with the intelligence.