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Commit 2433c03b authored by Yeshwanth Sriram Guntuka's avatar Yeshwanth Sriram Guntuka Committed by Madan Koyyalamudi
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qcacmn: Do not intrabss forward EAPOL frames 

Do not forward EAPOL frames that have DA different
from the SAP vdev mac addr.

Change-Id: I23959e38b5cbd845d369bebd6913150eca4551bf
CRs-Fixed: 2860248
parent 0549e6ec

dp/wifi3.0/dp_rx.c

+40 −1
Original line number Diff line number Diff line
@@ -2286,6 +2286,45 @@ void dp_rx_deliver_to_pkt_capture_no_peer(struct dp_soc *soc, qdf_nbuf_t nbuf, 


#endif



#ifdef DISABLE_EAPOL_INTRABSS_FWD

/*

 * dp_rx_intrabss_fwd_wrapper() - Wrapper API for intrabss fwd. For EAPOL

 *  pkt with DA not equal to vdev mac addr, fwd is not allowed.

 * @soc: core txrx main context

 * @ta_peer: source peer entry

 * @rx_tlv_hdr: start address of rx tlvs

 * @nbuf: nbuf that has to be intrabss forwarded

 * @msdu_metadata: msdu metadata

 *

 * Return: true if it is forwarded else false

 */

static inline

bool dp_rx_intrabss_fwd_wrapper(struct dp_soc *soc, struct dp_peer *ta_peer,

				uint8_t *rx_tlv_hdr, qdf_nbuf_t nbuf,

				struct hal_rx_msdu_metadata msdu_metadata)

{

	if (qdf_unlikely(qdf_nbuf_is_ipv4_eapol_pkt(nbuf) &&

			 qdf_mem_cmp(qdf_nbuf_data(nbuf) +

				     QDF_NBUF_DEST_MAC_OFFSET,

				     ta_peer->vdev->mac_addr.raw,

				     QDF_MAC_ADDR_SIZE))) {

		qdf_nbuf_free(nbuf);

		DP_STATS_INC(soc, rx.err.intrabss_eapol_drop, 1);

		return true;

	}



	return dp_rx_intrabss_fwd(soc, ta_peer, rx_tlv_hdr, nbuf,

				  msdu_metadata);



}

#define DP_RX_INTRABSS_FWD(soc, peer, rx_tlv_hdr, nbuf, msdu_metadata) \

		dp_rx_intrabss_fwd_wrapper(soc, peer, rx_tlv_hdr, nbuf, \

					   msdu_metadata)

#else

#define DP_RX_INTRABSS_FWD(soc, peer, rx_tlv_hdr, nbuf, msdu_metadata) \

		dp_rx_intrabss_fwd(soc, peer, rx_tlv_hdr, nbuf, msdu_metadata)

#endif



/**

 * dp_rx_process() - Brain of the Rx processing functionality

 *		     Called from the bottom half (tasklet/NET_RX_SOFTIRQ)
@@ -2923,7 +2962,7 @@ uint32_t dp_rx_process(struct dp_intr *int_ctx, hal_ring_handle_t hal_ring_hdl, 


			/* Intrabss-fwd */

			if (dp_rx_check_ap_bridge(vdev))

				if (dp_rx_intrabss_fwd(soc,

				if (DP_RX_INTRABSS_FWD(soc,

							peer,

							rx_tlv_hdr,

							nbuf,

dp/wifi3.0/dp_stats.c

+2 −0
Original line number Diff line number Diff line
@@ -5996,6 +5996,8 @@ void dp_txrx_path_stats(struct dp_soc *soc) 
			       pdev->stats.rx.intra_bss.fail.bytes);

		DP_PRINT_STATS("intra-bss no mdns fwds %u msdus",

			       pdev->stats.rx.intra_bss.mdns_no_fwd);

		DP_PRINT_STATS("intra-bss EAPOL drops: %u",

			       soc->stats.rx.err.intrabss_eapol_drop);



		DP_PRINT_STATS("raw packets %u msdus ( %llu bytes),",

			       pdev->stats.rx.raw.num,

dp/wifi3.0/dp_types.h

+2 −0
Original line number Diff line number Diff line
@@ -1008,6 +1008,8 @@ struct dp_soc_stats { 
			uint32_t ssn_update_count;

			/* count of bar handling fail */

			uint32_t bar_handle_fail_count;

			/* EAPOL drop count in intrabss scenario */

			uint32_t intrabss_eapol_drop;

		} err;



		/* packet count per core - per ring */