sbsndmbuf
m = sbsndmbuf(&rack->rc_inp->inp_socket->so_snd,
tm = sbsndmbuf(sb, (rsm->r_start - snd_una), &soff);
rsm->m = sbsndmbuf(sb, (rsm->r_start - snd_una), &rsm->soff);
rsm->m = sbsndmbuf(&rack->rc_inp->inp_socket->so_snd, 0, &rsm->soff);
rsm->m = sbsndmbuf(&rack->rc_inp->inp_socket->so_snd,
rack->r_ctl.fsb.m = sbsndmbuf(sb, (tp->snd_max - tp->snd_una), &rack->r_ctl.fsb.off);
rack->r_ctl.fsb.m = sbsndmbuf(sb, (tp->snd_max - tp->snd_una), &rack->r_ctl.fsb.off);
src_rsm->m = sbsndmbuf(&rack->rc_inp->inp_socket->so_snd,
rsm->m = sbsndmbuf(&rack->rc_inp->inp_socket->so_snd,
sbsndmbuf(struct sockbuf *sb, u_int off, u_int *moff);