diff options
Diffstat (limited to 'sys/dev/ath/if_ath.c')
| -rw-r--r-- | sys/dev/ath/if_ath.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sys/dev/ath/if_ath.c b/sys/dev/ath/if_ath.c index 3597c52..9d6b311 100644 --- a/sys/dev/ath/if_ath.c +++ b/sys/dev/ath/if_ath.c @@ -339,15 +339,20 @@ ath_attach(u_int16_t devid, struct ath_softc *sc) &sc->sc_drvbpf); /* * Initialize constant fields. + * XXX make header lengths a multiple of 32-bits so subsequent + * headers are properly aligned; this is a kludge to keep + * certain applications happy. * * NB: the channel is setup each time we transition to the * RUN state to avoid filling it in for each frame. */ - sc->sc_tx_th.wt_ihdr.it_len = sizeof(sc->sc_tx_th); - sc->sc_tx_th.wt_ihdr.it_present = ATH_TX_RADIOTAP_PRESENT; + sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t)); + sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len); + sc->sc_tx_th.wt_ihdr.it_present = htole32(ATH_TX_RADIOTAP_PRESENT); - sc->sc_rx_th.wr_ihdr.it_len = sizeof(sc->sc_rx_th); - sc->sc_rx_th.wr_ihdr.it_present = ATH_RX_RADIOTAP_PRESENT; + sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t)); + sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len); + sc->sc_rx_th.wr_ihdr.it_present = htole32(ATH_RX_RADIOTAP_PRESENT); return 0; bad: @@ -1726,7 +1731,7 @@ ath_rx_proc(void *arg, int npending) /* XXX TSF */ bpf_mtap2(sc->sc_drvbpf, - &sc->sc_rx_th, sizeof(sc->sc_rx_th), m); + &sc->sc_rx_th, sc->sc_rx_th_len, m); } m_adj(m, -IEEE80211_CRC_LEN); @@ -2070,7 +2075,7 @@ ath_tx_start(struct ath_softc *sc, struct ieee80211_node *ni, struct ath_buf *bf sc->sc_tx_th.wt_antenna = antenna; bpf_mtap2(sc->sc_drvbpf, - &sc->sc_tx_th, sizeof(sc->sc_tx_th), m0); + &sc->sc_tx_th, sc->sc_tx_th_len, m0); } /* |
