Magic Firewall Functions
bit_slice(
String
,Number
,Number
)Number
- Select a slice of contiguous bits from a string field. This is primarily intended for use with
ip
andtcp
. - The slice can be no longer than 31 bits, but multiple calls can be joined together via a logical expression.
- Use of structure fields is preferred over this mechanism.
- Select a slice of contiguous bits from a string field. This is primarily intended for use with