Trait network_packet::IncomingNetworkPacketDropObserver[−][src]

pub trait IncomingNetworkPacketDropObserver {
    type DropReason: IncomingNetworkPacketProcessingDropReason;
    fn dropped_packet(&self, reason: Self::DropReason);
}

Allows for notification of dropped incoming network packets.

Associated Types

The type of the drop reason.

Usually implemented as an enum.

Required Methods

Notifies the observer that a packet has been dropped.

Things that can be done with this information:-

  • Log to syslog.
  • Log to standard error.
  • Log to an in-memory ring buffer which can be 'inspected' (this has the advantage of fixing memory usage).
  • Increment a statistic, such as a counter.
  • Use injected Lua
  • Pass to a security monitor which can reactively and automatically adjust configuration (eg ban an IP address).
  • Ignore.

One additional possible idea, not yet supported, would to allow the observer to mutate the packet and 're-inject' it or 'reject' the drop. This is fraught with potential pitfalls.

Implementors