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430cd9b146
- Large rework on packet filter framework to make many things easier.
- Removed the PacketFilter::all_packets variable because it was confusing.
- New variable (PacketFilter::enable_auto_protocol_capture_filters) to re-enable the old filtering model of only sniffing ports for analyzed protocols.
- In progress plugin model for adding filtering mechanisms.
- New default single item for capture_filters = { ["default"] = PacketFilter::default_capture_filter };
- Mechanism and helper functions to "shunt" traffic with filters.
- Created the Protocols framework to assist with reworking how base protocol scripts are registered with DPD and other things.
- Protocols framework creates BPF filters for registered analyzers. (if using PacketFilter framework in that mode).
12 lines
589 B
Text
12 lines
589 B
Text
## Capture TCP fragments, but not UDP (or ICMP), since those are a lot more
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## common due to high-volume, fragmenting protocols such as NFS :-(.
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## This normally isn't used because of the default open packet filter
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## but we set it anyway in case the user is using a packet filter.
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## Note: This was removed because the default model now is to have a wide
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## open packet filter.
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#redef capture_filters += { ["frag"] = "(ip[6:2] & 0x3fff != 0) and tcp" };
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## Shorten the fragment timeout from never expiring to expiring fragments after
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## five minutes.
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redef frag_timeout = 5 min;
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