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Commit c84b9857 authored by Yeshwanth Sriram Guntuka's avatar Yeshwanth Sriram Guntuka Committed by Yingying Tang
Browse files

qcacld-3.0: Do not intrabss fwd EAPOL frames in IPA exc path 

Do not intrabss forward EAPOL frames received in IPA
exception path.

Change-Id: I0be68ec2c186a7b64d4d2f1c3de7dbb20e49d860
CRs-Fixed: 2860225
parent d41e685d

core/hdd/src/wlan_hdd_ipa.c

+50 −2
Original line number Diff line number Diff line
@@ -5764,6 +5764,40 @@ static enum hdd_ipa_forward_type hdd_ipa_intrabss_forward( 
	return ret;

}



/**

 * wlan_ipa_eapol_intrabss_fwd_check() - Check if eapol pkt intrabss fwd is

 *  allowed or not

 * @nbuf: network buffer

 * @vdev_id: vdev id

 *

 * Return: true if intrabss fwd is allowed for eapol else false

 */

static bool

wlan_ipa_eapol_intrabss_fwd_check(qdf_nbuf_t nbuf, uint8_t vdev_id)

{

	ol_txrx_vdev_handle vdev;

	uint8_t *vdev_mac_addr;



	vdev = ol_txrx_get_vdev_from_vdev_id(vdev_id);



	if (!vdev) {

		HDD_IPA_LOG(QDF_TRACE_LEVEL_ERROR,

			    "txrx vdev is NULL for vdev_id = %d", vdev_id);

		return false;

	}



	vdev_mac_addr = ol_txrx_get_vdev_mac_addr(vdev);



	if (!vdev_mac_addr)

		return false;



	if (qdf_mem_cmp(qdf_nbuf_data(nbuf) + QDF_NBUF_DEST_MAC_OFFSET,

			vdev_mac_addr, QDF_MAC_ADDR_SIZE))

		return false;



	return true;

}



/**

 * __hdd_ipa_w2i_cb() - WLAN to IPA callback handler

 * @priv: pointer to private data registered with IPA (we register a
@@ -5874,9 +5908,23 @@ static void __hdd_ipa_w2i_cb(void *priv, enum ipa_dp_evt_type evt, 
				     QDF_MAC_ADDR_SIZE);

		}



		if (qdf_nbuf_is_ipv4_eapol_pkt(skb) ||

		    qdf_nbuf_is_ipv4_wapi_pkt(skb))

		if (qdf_nbuf_is_ipv4_eapol_pkt(skb)) {

			is_eapol_wapi = true;

			if (iface_context->adapter->device_mode ==

			    QDF_SAP_MODE &&

			    !wlan_ipa_eapol_intrabss_fwd_check(skb,

					   iface_context->adapter->sessionId)) {

				HDD_IPA_LOG(QDF_TRACE_LEVEL_ERROR,

					    "EAPOL intrabss fwd drop DA: %pM",

					    qdf_nbuf_data(skb) +

					    QDF_NBUF_DEST_MAC_OFFSET);

				hdd_ipa->ipa_rx_internal_drop_count++;

				kfree_skb(skb);

				return;

			}

		} else if (qdf_nbuf_is_ipv4_wapi_pkt(skb)) {

			is_eapol_wapi = true;

		}



		peer = ol_txrx_find_peer_by_addr(pdev, peer_mac_addr.bytes,

						 &sta_idx);