zeek/scripts/base/frameworks/intel/cluster.bro
Seth Hall a4af46e1f4 Functional intelligence framework.
- All 5 intelligence tests pass.
- Some initial memory optimizations done.
  - More work needs done to reduce duplicate data in memory.
- Input framework integration.
  - Define files to read in the "Bro intelligence format" in Intel::read_files.
- Cluster transparency.
- DNS Zones are a fully supported data type.
  - Queries for Intel::DOMAIN values will automatically check in DNS_ZONE intelligence.
2012-08-06 09:34:14 -04:00

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##! Cluster transparency support for the intelligence framework. This is mostly oriented
##! toward distributing intelligence information across clusters.
@load base/frameworks/cluster
module Intel;
export {
global cluster_new_item: event(item: Item);
global cluster_updated_item: event(item: Item);
redef record Item += {
## This field is solely used internally for cluster transparency with
## the intelligence framework to avoid storms of intelligence data
## swirling forever. It allows data to propagate only a single time.
first_dispatch: bool &default=T;
};
}
# Primary intelligence distribution comes from manager.
redef Cluster::manager2worker_events += /Intel::cluster_(new|updated)_item/;
# If a worker finds intelligence and adds it, it should share it back to the manager.
redef Cluster::worker2manager_events += /Intel::cluster_(new|updated)_item/;
event Intel::cluster_new_item(item: Intel::Item)
{
# Ignore locally generated events.
if ( is_remote_event() )
Intel::insert(item);
}
event Intel::cluster_updated_item(item: Intel::Item)
{
# Ignore locally generated events.
if ( is_remote_event() )
Intel::insert(item);
}
event Intel::new_item(item: Intel::Item)
{
# If this is the first time this item has been dispatched,
# send it over the cluster.
if ( item$first_dispatch )
{
item$first_dispatch = F;
event Intel::cluster_new_item(item);
}
}
event Intel::updated_item(item: Intel::Item)
{
# If this is the first time this item has been dispatched,
# send it over the cluster.
if ( item$first_dispatch )
{
item$first_dispatch = F;
event Intel::cluster_updated_item(item);
}
}