Zilog EZ80F91GA Manual do Utilizador descarregar pdf (Página 92)

ZGATE API Reference UM024502-1012

ZGATE Embedded Security Development Kit

User Manual

ZGATE_remove_eth_frame

Function Prototype

INT16 ZGATE_remove_eth_frame( INT32 FrameType );

Parameters

FrameType Ethernet frame type to be removed from the Ethernet frame type

static filtering list. The value of FrameType must be between 0

and 65535.

Return Value

TRUE FrameType was successfully removed from the Ethernet frame

type static filtering list.

FALSE FrameType is invalid, does not exist in the Ethernet frame type

static filtering list or Ethernet frame type filtering is disabled.

Description

When the Ethernet Frame Type filter is operating in WHITELIST (forwarding) or

BLACKLIST (blocking) Mode, it extracts the Type field from inbound Ethernet frames

and compares the frame type to entries in the Ethernet Frame Type filtering list. If a match

is found, the frame is forwarded to ZTP if the filter operates in WHITELIST Mode and

blocked from TCP if the filter operates in BLACKLIST Mode.

This API is used to remove an entry from the Ethernet Frame Type static filtering list.

Entries cannot be removed from the list if the Ethernet Frame Type filter is disabled.

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