Zilog EZ80F91GA Uživatelský manuál stáhnout pdf (Strana 87)

UM024502-1012 ZGATE Logging Page

ZGATE Embedded Security Development Kit

User Manual

ZGATE_add_udp_port

Function Prototype

INT16 ZGATE_add_udp_port( INT32 PortNumber );

Parameters

PortNumber UDP port number to be added to the UDP port static filtering list.

The value of

PortNumber must be between 0 and 65535.

Return Value

TRUE PortNumber was successfully added to the UDP port static fil-

tering list.

FALSE PortNumber is invalid, already exists in the UDP port static fil-

tering list, the list is full, or the UDP Port filter is disabled.

Description

When the UDP Port filter is operating in WHITELIST (forwarding) or BLACKLIST

(blocking) Mode, it extracts the destination UDP port number from inbound UDP data-

grams and compares the target port number to entries in the UDP port list. If a match is

found, the datagram 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 UP Port static filtering list. Entries cannot be added

to the UDP Port list if the UDP Port filter is disabled.

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Zilog EZ80F91GA Uživatelský manuál Strana 87