diff options
| author | Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> | 2012-01-21 15:22:52 +0530 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2012-01-24 14:12:27 +0200 |
| commit | 3fdc099109e75359e5de54c56478c06255850741 (patch) | |
| tree | 90875415bcc1fb09f2f9ad838e9bbf3c4a17cb52 /drivers/net/wireless/ath/ath6kl | |
| parent | 17741c8db4f53200a51600d1644ee6a2b76f0984 (diff) | |
ath6kl: Fix bug in using tid given by addba/delba req events
The tid which is given in addba/delba req event is not
just tid but also muxed with the assoc id (MSB 4 bits)
which can be used to determine the corresponding connected
station in softap mode. The actual tid is LSB 4 bits. Using
the tid as it is with rx_tid[] would result in OOB or invalid
memory access in AP mode.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/txrx.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c index 8407d0103dc..8cf7b2fa0f4 100644 --- a/drivers/net/wireless/ath/ath6kl/txrx.c +++ b/drivers/net/wireless/ath/ath6kl/txrx.c @@ -17,6 +17,17 @@ #include "core.h" #include "debug.h" +/* + * tid - tid_mux0..tid_mux3 + * aid - tid_mux4..tid_mux7 + */ +#define ATH6KL_TID_MASK 0xf + +static inline u8 ath6kl_get_tid(u8 tid_mux) +{ + return tid_mux & ATH6KL_TID_MASK; +} + static u8 ath6kl_ibss_map_epid(struct sk_buff *skb, struct net_device *dev, u32 *map_no) { @@ -1602,7 +1613,7 @@ static void aggr_delete_tid_state(struct aggr_info_conn *aggr_conn, u8 tid) memset(stats, 0, sizeof(struct rxtid_stats)); } -void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid, u16 seq_no, +void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid_mux, u16 seq_no, u8 win_sz) { struct aggr_info *p_aggr = vif->aggr_cntxt; @@ -1610,12 +1621,17 @@ void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid, u16 seq_no, struct rxtid *rxtid; struct rxtid_stats *stats; u16 hold_q_size; + u8 tid; if (!p_aggr || !p_aggr->aggr_conn) return; aggr_conn = p_aggr->aggr_conn; + tid = ath6kl_get_tid(tid_mux); + if (tid >= NUM_OF_TIDS) + return; + rxtid = &aggr_conn->rx_tid[tid]; stats = &aggr_conn->stat[tid]; @@ -1691,15 +1707,20 @@ struct aggr_info *aggr_init(struct ath6kl_vif *vif) return p_aggr; } -void aggr_recv_delba_req_evt(struct ath6kl_vif *vif, u8 tid) +void aggr_recv_delba_req_evt(struct ath6kl_vif *vif, u8 tid_mux) { struct aggr_info *p_aggr = vif->aggr_cntxt; struct rxtid *rxtid; struct aggr_info_conn *aggr_conn; + u8 tid; if (!p_aggr || !p_aggr->aggr_conn) return; + tid = ath6kl_get_tid(tid_mux); + if (tid >= NUM_OF_TIDS) + return; + aggr_conn = p_aggr->aggr_conn; rxtid = &aggr_conn->rx_tid[tid]; |