ref_seq
dp->ref_seq.hi = dp->seq_snd >> 24;
dp->ref_seq.lo = (u_int64_t)(dp->seq_snd & 0xffffff);
dp->ref_seq.hi = dp->seq_snd >> 24;
dp->ref_seq.lo = (u_int64_t)(dp->seq_snd & 0xffffff);
dp->ack_rcv = CONVERT_TO_LONGSEQ((ntohl(dah->dash.dah_ack) >> 8), dp->ref_seq);
dp->ack_rcv = CONVERT_TO_LONGSEQ((ntohl(dah->dash.dah_ack) >> 8), dp->ref_seq);
dp->ack_rcv = CONVERT_TO_LONGSEQ((ntohl(dah->dash.dah_ack) >> 8), dp->ref_seq);
struct ref_seq ref_seq; /* reference sequence number */
struct ref_seq ref_pseq; /* reference peer sequence number */