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Commit 64a2d1ee authored by Vulupala Shashank Reddy's avatar Vulupala Shashank Reddy Committed by Gerrit - the friendly Code Review server
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qcacld-3.0: Add filter for data packets in packet capture mode 

Deliver data packets to monitor interface only if
corresponding filter is set by vendor command.

Change-Id: Ibf24349d17d1e649819447b1cde36a834e5579a4
CRs-Fixed: 3046233
parent 58d43563

components/pkt_capture/core/src/wlan_pkt_capture_main.c

+264 −132
Original line number Diff line number Diff line
@@ -251,33 +251,13 @@ pkt_capture_process_ppdu_stats(void *log_data) 
	qdf_spin_unlock(&vdev_priv->lock_q);

}



void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data,

			  u_int16_t vdev_id, uint32_t status)

static void

pkt_capture_process_tx_data(void *soc, void *log_data, u_int16_t vdev_id,

			    uint32_t status)

{

	uint8_t bssid[QDF_MAC_ADDR_SIZE];

	uint8_t tid = 0;

	struct dp_soc *psoc = soc;

	struct wlan_objmgr_vdev *vdev;

	struct wlan_objmgr_psoc *obj_mgr_psoc;

	struct pkt_psoc_priv *psoc_priv;

	struct pkt_capture_frame_filter *frame_filter;



	vdev = pkt_capture_get_vdev();

	if (!vdev)

		return;



	obj_mgr_psoc = wlan_vdev_get_psoc(vdev);

	psoc_priv = pkt_capture_psoc_get_priv(obj_mgr_psoc);

	if (!psoc_priv) {

		pkt_capture_err("psoc_priv is NULL");

		return;

	}



	frame_filter = &psoc_priv->frame_filter;



	switch (event) {

	case WDI_EVENT_PKT_CAPTURE_TX_DATA:

	{

	uint8_t tid = 0;

	uint8_t bssid[QDF_MAC_ADDR_SIZE];

	struct pkt_capture_tx_hdr_elem_t *ptr_pktcapture_hdr;

	struct pkt_capture_tx_hdr_elem_t pktcapture_hdr = {0};

	struct hal_tx_completion_status tx_comp_status = {0};
@@ -292,9 +272,6 @@ void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data, 
	hal_tx_comp_get_status(&desc->comp, &tx_comp_status,

			       psoc->hal_soc);



		if (!frame_filter->data_tx_frame_filter)

			return;



	if (tx_comp_status.valid)

		pktcapture_hdr.ppdu_id = tx_comp_status.ppdu_id;

	pktcapture_hdr.timestamp = tx_comp_status.tsf;
@@ -407,6 +384,129 @@ void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data, 
		vdev_id, netbuf, TXRX_PROCESS_TYPE_DATA_TX_COMPL,

		tid, status, TXRX_PKTCAPTURE_PKT_FORMAT_8023,

		bssid, NULL, pktcapture_hdr.tx_retry_cnt);

}



/**

 * pkt_capture_is_frame_filter_set() - Check frame filter is set

 * @nbuf: buffer address

 * @frame_filter: frame filter address

 * @direction: frame direction

 *

 * Return: true, if filter bit is set

 *         false, if filter bit is not set

 */

static bool

pkt_capture_is_frame_filter_set(qdf_nbuf_t buf,

				struct pkt_capture_frame_filter *frame_filter,

				bool direction)

{

	enum pkt_capture_data_frame_type data_frame_type =

		PKT_CAPTURE_DATA_FRAME_TYPE_ALL;



	if (qdf_nbuf_is_ipv4_arp_pkt(buf))

		data_frame_type = PKT_CAPTURE_DATA_FRAME_TYPE_ARP;

	else if (qdf_nbuf_is_ipv4_eapol_pkt(buf))

		data_frame_type = PKT_CAPTURE_DATA_FRAME_TYPE_EAPOL;

	else if (qdf_nbuf_data_is_tcp_syn(buf))

		data_frame_type =

			PKT_CAPTURE_DATA_FRAME_TYPE_TCP_SYN;

	else if (qdf_nbuf_data_is_tcp_syn_ack(buf))

		data_frame_type =

			PKT_CAPTURE_DATA_FRAME_TYPE_TCP_SYNACK;

	else if (qdf_nbuf_data_is_tcp_syn(buf))

		data_frame_type =

			PKT_CAPTURE_DATA_FRAME_TYPE_TCP_FIN;

	else if (qdf_nbuf_data_is_tcp_syn_ack(buf))

		data_frame_type =

			PKT_CAPTURE_DATA_FRAME_TYPE_TCP_FINACK;

	else if (qdf_nbuf_data_is_tcp_ack(buf))

		data_frame_type =

			PKT_CAPTURE_DATA_FRAME_TYPE_TCP_ACK;

	else if (qdf_nbuf_data_is_tcp_rst(buf))

		data_frame_type =

			PKT_CAPTURE_DATA_FRAME_TYPE_TCP_RST;

	else if (qdf_nbuf_is_ipv4_pkt(buf)) {

		if (qdf_nbuf_is_ipv4_dhcp_pkt(buf))

			data_frame_type =

				PKT_CAPTURE_DATA_FRAME_TYPE_DHCPV4;

		else if (qdf_nbuf_is_icmp_pkt(buf))

			data_frame_type =

				PKT_CAPTURE_DATA_FRAME_TYPE_ICMPV4;

		else if (qdf_nbuf_data_is_dns_query(buf))

			data_frame_type =

				PKT_CAPTURE_DATA_FRAME_TYPE_DNSV4;

		else if (qdf_nbuf_data_is_dns_response(buf))

			data_frame_type =

				PKT_CAPTURE_DATA_FRAME_TYPE_DNSV4;

	} else if (qdf_nbuf_is_ipv6_pkt(buf)) {

		if (qdf_nbuf_is_ipv6_dhcp_pkt(buf))

			data_frame_type =

				PKT_CAPTURE_DATA_FRAME_TYPE_DHCPV6;

		else if (qdf_nbuf_is_icmpv6_pkt(buf))

			data_frame_type =

				PKT_CAPTURE_DATA_FRAME_TYPE_ICMPV6;

		/* need to add code for

		 * PKT_CAPTURE_DATA_FRAME_TYPE_DNSV6

		 */

	}

	/* Add code for

	 * PKT_CAPTURE_DATA_FRAME_TYPE_RTP

	 * PKT_CAPTURE_DATA_FRAME_TYPE_SIP

	 * PKT_CAPTURE_DATA_FRAME_QOS_NULL

	 */



	if (direction == IEEE80211_FC1_DIR_TODS) {

		if (data_frame_type & frame_filter->data_tx_frame_filter)

			return true;

		else

			return false;

	} else {

		if (data_frame_type & frame_filter->data_rx_frame_filter)

			return true;

		else

			return false;

	}

}



void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data,

			  u_int16_t vdev_id, uint32_t status)

{

	uint8_t bssid[QDF_MAC_ADDR_SIZE];

	struct wlan_objmgr_vdev *vdev;

	struct wlan_objmgr_psoc *obj_mgr_psoc;

	struct pkt_psoc_priv *psoc_priv;

	struct pkt_capture_frame_filter *frame_filter;



	vdev = pkt_capture_get_vdev();

	if (!vdev)

		return;



	obj_mgr_psoc = wlan_vdev_get_psoc(vdev);

	psoc_priv = pkt_capture_psoc_get_priv(obj_mgr_psoc);

	if (!psoc_priv) {

		pkt_capture_err("psoc_priv is NULL");

		return;

	}



	frame_filter = &psoc_priv->frame_filter;



	switch (event) {

	case WDI_EVENT_PKT_CAPTURE_TX_DATA:

	{

		struct dp_tx_desc_s *desc = log_data;



		if (!frame_filter->data_tx_frame_filter)

			return;



		if (frame_filter->data_tx_frame_filter &

		    PKT_CAPTURE_DATA_FRAME_TYPE_ALL) {

			pkt_capture_process_tx_data(soc, log_data,

						    vdev_id, status);

		} else if (pkt_capture_is_frame_filter_set(

			   desc->nbuf, frame_filter, IEEE80211_FC1_DIR_TODS)) {

			pkt_capture_process_tx_data(soc, log_data,

						    vdev_id, status);

		}



		break;

	}
@@ -425,8 +525,19 @@ void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data, 
			return;

		}



		pkt_capture_msdu_process_pkts(bssid, log_data, vdev_id, soc,

					      status);

		if (frame_filter->data_rx_frame_filter &

		    PKT_CAPTURE_DATA_FRAME_TYPE_ALL) {

			pkt_capture_msdu_process_pkts(bssid, log_data,

						      vdev_id, soc, status);

		} else if (pkt_capture_is_frame_filter_set(

			   nbuf, frame_filter, IEEE80211_FC1_DIR_FROMDS)) {

			pkt_capture_msdu_process_pkts(bssid, log_data,

						      vdev_id, soc, status);

		} else {

			if (status == RX_OFFLOAD_PKT)

				qdf_nbuf_free(nbuf);

		}



		break;

	}
@@ -444,8 +555,19 @@ void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data, 
			return;

		}



		pkt_capture_process_rx_data_no_peer(soc, vdev_id, bssid, status,

						    nbuf);

		if (frame_filter->data_rx_frame_filter &

		    PKT_CAPTURE_DATA_FRAME_TYPE_ALL) {

			pkt_capture_process_rx_data_no_peer(soc, vdev_id, bssid,

							    status, nbuf);

		} else if (pkt_capture_is_frame_filter_set(

			   nbuf, frame_filter, IEEE80211_FC1_DIR_FROMDS)) {

			pkt_capture_process_rx_data_no_peer(soc, vdev_id, bssid,

							    status, nbuf);

		} else {

			if (status == RX_OFFLOAD_PKT)

				qdf_nbuf_free(nbuf);

		}



		break;

	}
@@ -454,6 +576,8 @@ void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data, 
		struct htt_tx_offload_deliver_ind_hdr_t *offload_deliver_msg;

		bool is_pkt_during_roam = false;

		uint32_t freq = 0;

		qdf_nbuf_t buf = log_data +

				sizeof(struct htt_tx_offload_deliver_ind_hdr_t);



		if (!frame_filter->data_tx_frame_filter)

			return;
@@ -471,9 +595,17 @@ void pkt_capture_callback(void *soc, enum WDI_EVENT event, void *log_data, 
			vdev_id = offload_deliver_msg->vdev_id;

		}



		if (frame_filter->data_tx_frame_filter &

		    PKT_CAPTURE_DATA_FRAME_TYPE_ALL) {

			pkt_capture_offload_deliver_indication_handler(

							log_data,

							vdev_id, bssid, soc);

		} else if (pkt_capture_is_frame_filter_set(

			   buf, frame_filter, IEEE80211_FC1_DIR_TODS)) {

			pkt_capture_offload_deliver_indication_handler(

							log_data,

							vdev_id, bssid, soc);

		}

		break;

	}