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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 type

SYNOPSIS

In netgraph/ng_UI.h

DESCRIPTION

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 upstream

Conversely, 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.org
La chance n'existe pas. Ce que vous appelez chance, c'est
essentiellement l'attention que certains accordent aux détails
les plus infimes.
-+- Winston Churchill -+-