Zilog EZ80F91GA Manual do Utilizador descarregar pdf (Página 91)

UM024502-1012 ZGATE Logging Page

ZGATE Embedded Security Development Kit

User Manual

ZGATE_add_eth_frame

Function Prototype

INT16 ZGATE_add_eth_frame( INT32 FrameType );

Parameters

FrameType Ethernet frame type to be added to the Ethernet frame type static

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

65535.

Return Value

TRUE FrameType was successfully added to the Ethernet frame type

static filtering list.

FALSE FrameType is invalid, already exists in the Ethernet frame type

static filtering list, the list is full or the Ethernet frame type filter

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 add an entry to the Ethernet Frame Type static filtering list. Entries

cannot be added to the list if the Ethernet Frame Type filter is disabled.

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