Symbol: _CT
sys/netpfil/ipfw/nat64/nat64lsn.h
201
#define SET_AGE(x) (x) = _CT
sys/netpfil/ipfw/nat64/nat64lsn.h
202
#define GET_AGE(x) ((_CT >= (x)) ? _CT - (x): (int)65536 + _CT - (x))