FilterByLabelSelectors returns a FilterFunc.

ParseFilterList parses a list of process filters in JSON format into protobuf messages.

Filters is the list of default filters.

LabelsFilter implements filtering based on pod labels.

PidSetFilter is a filter that matches on a process and all of its children by their PID, up to maxChildCacheSize number of children.

PolicyNamesFilter implements filtering based on Tetragon policy names.

OnBuildFilter is invoked while building a flow filter.

We could use an LRU here but we really don't want to evict old entries and risk failing a test that uses this filter.

OnBuildFilterFunc implements OnBuildFilter for a single function.