Symbol: TH_ACKMASK
usr/src/uts/common/inet/ipf/netinet/ip_compat.h
2127
#undef TH_ACKMASK
usr/src/uts/common/inet/ipf/netinet/ip_compat.h
2128
#define TH_ACKMASK (TH_FIN|TH_SYN|TH_RST|TH_ACK)