Zilog EZ80F91GA Uživatelský manuál stáhnout pdf (Strana 88)

ZGATE API Reference UM024502-1012

ZGATE Embedded Security Development Kit

User Manual

ZGATE_remove_udp_port

Function Prototype

INT16 ZGATE_remove_udp_port( INT32 value );

Parameters

PortNumber UDP port number to be removed from the UDP port static filter-

ing list. The value of

PortNumber must be between 0 and 65535.

Return Value

TRUE PortNumber was successfully removed from the UDP port static

filtering list.

FALSE PortNumber is invalid, does not exist in the UDP port static fil-

tering list, 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 remove an entry from the UP Port static filtering list. Entries cannot be

removed from the UDP Port list if the UDP Port filter is disabled.

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Zilog EZ80F91GA Uživatelský manuál Strana 88