Symbol: PFDESC_SCTP_HEARTBEAT_ACK
sys/netpfil/pf/pf.c
7987
if (pd->sctp_flags & (PFDESC_SCTP_COOKIE | PFDESC_SCTP_HEARTBEAT_ACK)) {
sys/netpfil/pf/pf_norm.c
2102
pd->sctp_flags |= PFDESC_SCTP_HEARTBEAT_ACK;