iff_event_func

Declaration

typedef void (*iff_event_func)(void *cookie, ifnet_t interface, protocol_family_t protocol, const struct kev_msg *event_msg);

Parameters

• cookie:

  The cookie specified when this filter was attached.

• interface:

  The interface the packet is being transmitted on.

• event_msg:

  The kernel event, may not be changed.

Discussion

iff_event_func is used to filter interface specific events. The interface is only valid for the duration of the filter call. If you need to keep a reference to the interface, be sure to call ifnet_reference and ifnet_release.