zyd_plcphdr
const struct zyd_plcphdr *plcp;
plcp = (const struct zyd_plcphdr *)buf;
rlen = len - sizeof(struct zyd_plcphdr) -
(sizeof(struct zyd_plcphdr) + IEEE80211_MIN_LEN + \
(sizeof(struct zyd_plcphdr) + MCLBYTES + sizeof(struct zyd_rx_desc))