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ng_hole.4freebsd
Langue: en
Version: 361984 (ubuntu - 24/10/10)
Section: 4 (Pilotes et protocoles réseau)
BSD mandoc
NAME
ng_hole - netgraph discard node typeSYNOPSIS
In sys/types.h In netgraph/ng_hole.hDESCRIPTION
The hole node type silently discards all data and control messages it receives. This type is used for testing and debugging.HOOKS
A node accepts any request to connect, regardless of the hook name, as long as the name is unique.CONTROL MESSAGES
This node type supports the generic control messages, plus the following:- NGM_HOLE_GET_STATS
- This command takes an ASCII string argument, the hook name, and returns the statistics associated with the hook as a Vt struct ng_hole_hookstat .
- NGM_HOLE_CLR_STATS
- This command takes an ASCII string argument, the hook name, and clears the statistics associated with the hook.
- NGM_HOLE_GETCLR_STATS
- This command is identical to NGM_HOLE_GET_STATS except that the statistics are also atomically cleared.
SHUTDOWN
This node shuts down upon receipt of a NGM_SHUTDOWN control message, or when all hooks have been disconnected.SEE ALSO
netgraph(4), ng_echo4, ngctl(8)HISTORY
The node type was implemented in Fx 4.0 .AUTHORS
An Julian Elischer Aq julian@FreeBSD.orgContenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre