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ng_UI.4freebsd
Langue: en
Version: 300653 (debian - 07/07/09)
Section: 4 (Pilotes et protocoles réseau)
BSD mandoc
NAME
ng_UI - UI netgraph node typeSYNOPSIS
In netgraph/ng_UI.hDESCRIPTION
The UI node type has two hooks, upstream and downstream Packets received on downstream must have 0x03 (indicating unnumbered information) as their first byte; if not the packet is dropped. This byte is then stripped and the remainder of the packet sent out on upstreamConversely, packets received on upstream will have a 0x03 byte prepended to them before being forwarded out on the downstream hook.
HOOKS
This node type supports the following hooks:- downstream
- Downstream connection. Packets on this side of the node have a 0x03 as their first byte.
- upstream
- Upstream connection. Packets on this side of the node have the initial 0x03 byte stripped off.
CONTROL MESSAGES
This node type supports only the generic control messages.SHUTDOWN
This node shuts down upon receipt of a NGM_SHUTDOWN control message, or when both hooks have been disconnected.SEE ALSO
netgraph(4), 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