Zilog EZ80F91GA - Manual (Page 78)

ZGATE API Reference UM024502-1012
66
ZGATE Embedded Security Development Kit
User Manual
ZGATE_tcp_port_filtering_type
Function Prototype
INT16 ZGATE_tcp_port_filtering_type( void );
Parameters
None.
Return Value
ZGATE_FILTER_DISABLED ZGATE does not examine the destination TCP port
number when deciding whether to forward or dis-
card received TCP packets.
ZGATE_BLACKLIST_FILTERING ZGATE discards received TCP packets if the desti-
nation TCP port number field matches an entry in
the
tcp_port filtering list.
ZGATE_WHITELIST_FILTERING ZGATE forwards received TCP packets if the desti-
nation TCP port number field matches an entry in
the
tcp_port filtering list.
Description
This function returns the filtering mode of the TCP destination port number filter.