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qcacmn: Add SA check for Decrypt error frame

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Usually decrypt error frames will be reported and cause
a disconnection. In some cases, the disconnection is unwanted.
Change is aimed to do additional check for frame SA, if it's
received from a valid peer, then don't report it to protocol.

Change-Id: I19d9acffc5ebd2c20abdf19eebc02f6875f762ca
CRs-Fixed: 3363352
This commit is contained in:
Yu Tian
2022-12-27 04:59:19 -08:00
committed by Madan Koyyalamudi
parent f066d5ca6a
commit 4bb2e1a3f2
3 changed files with 20 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
dp/wifi3.0/dp_rx.c
View File

@@ -1392,6 +1392,7 @@ uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t mpdu,
struct dp_pdev *pdev; struct dp_pdev *pdev;
struct dp_vdev *vdev = NULL; struct dp_vdev *vdev = NULL;
struct ieee80211_frame *wh; struct ieee80211_frame *wh;
struct dp_peer *peer = NULL;
uint8_t *rx_tlv_hdr = qdf_nbuf_data(mpdu); uint8_t *rx_tlv_hdr = qdf_nbuf_data(mpdu);
uint8_t *rx_pkt_hdr = hal_rx_pkt_hdr_get(soc->hal_soc, rx_tlv_hdr); uint8_t *rx_pkt_hdr = hal_rx_pkt_hdr_get(soc->hal_soc, rx_tlv_hdr);
@@ -1430,6 +1431,21 @@ uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t mpdu,
} }
out: out:
if (vdev->opmode == wlan_op_mode_ap) {
peer = dp_peer_find_hash_find(soc, wh->i_addr2, 0,
vdev->vdev_id,
DP_MOD_ID_RX_ERR);
/* If SA is a valid peer in vdev,
* don't send disconnect
*/
if (peer) {
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
DP_STATS_INC(soc, rx.err.decrypt_err_drop, 1);
dp_err_rl("invalid peer frame with correct SA/RA is freed");
goto free;
}
}
if (soc->cdp_soc.ol_ops->rx_invalid_peer) if (soc->cdp_soc.ol_ops->rx_invalid_peer)
soc->cdp_soc.ol_ops->rx_invalid_peer(vdev->vdev_id, wh); soc->cdp_soc.ol_ops->rx_invalid_peer(vdev->vdev_id, wh);
free: free:

2
dp/wifi3.0/dp_stats.c
View File

@@ -8086,6 +8086,8 @@ dp_print_soc_rx_stats(struct dp_soc *soc)
soc->stats.rx.err.rx_invalid_tid_err); soc->stats.rx.err.rx_invalid_tid_err);
DP_PRINT_STATS("Rx Defrag Address1 Invalid:%d", DP_PRINT_STATS("Rx Defrag Address1 Invalid:%d",
soc->stats.rx.err.defrag_ad1_invalid); soc->stats.rx.err.defrag_ad1_invalid);
DP_PRINT_STATS("Rx decrypt error frame for valid peer:%d",
soc->stats.rx.err.decrypt_err_drop);
} }
#ifdef FEATURE_TSO_STATS #ifdef FEATURE_TSO_STATS

2
dp/wifi3.0/dp_types.h
View File

@@ -1345,6 +1345,8 @@ struct dp_soc_stats {
uint32_t rx_invalid_tid_err; uint32_t rx_invalid_tid_err;
/* Invalid address1 in defrag path*/ /* Invalid address1 in defrag path*/
uint32_t defrag_ad1_invalid; uint32_t defrag_ad1_invalid;
/* decrypt error drop */
uint32_t decrypt_err_drop;
} err; } err;
/* packet count per core - per ring */ /* packet count per core - per ring */