$and
AND-operator.
Return “true” if all of the conditions are met.
Syntax:
$and( value1, value2, [value3] ) $and( pattern1, pattern2, [pattern3] )
Parameters:
value – Must indicates “true” or “false”
pattern – Matching Pattern.
Returns:
true – if all of the conditions are met.
false – otherwise
Version Since:
2.3
Where the function can be used:
- Preliminary rules
- Regular rules
Example:
$and(“$transport=TCP”,”$addr=192.168.1.10$”) = true If a SIP packet came from 192.168.1.10 over TCP.