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ZGATE API Reference UM024502-1012

ZGATE Embedded Security Development Kit

User Manual

ZGATE_remove_ip_addr

Function Prototype

INT16 ZGATE_remove_ip_addr ( INT32 IP_Addr );

Parameters

IP_Addr IP address to be removed from the IP source address static filter-

ing list.

IP_Addr must be a 32-bit IPv4 address in little-endian

(presentation mode) format (e.g., 192.68.1.15 would be repre-

sented by the value

0xC0A8010F which, on the eZ80F91 MCU,

would be stored in memory as

0x0F, 0x01, 0xA8, 0xC0).

Return Value

TRUE IP_Addr was successfully removed from the IP Address static

filtering list.

FALSE IP_Addr does not exist in the IP Address static filtering list, or

the IP Address filter is disabled.

Description

When the IP Address filter is operating in WHITELIST (forwarding) or BLACKLIST

(blocking) Mode, it extracts the source IP address from inbound IP packets and compares

the IP address to entries in the IP Address 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 IP Address static filtering list. Entries cannot

be removed from the list if the IP Address filter is disabled.

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Zilog EZ80F91GA Manuale Utente Pagina 94