/**
* @brief This function processes the received buffer
*
* @param adapter A pointer to mlan_adapter
* @param pmbuf A pointer to the received buffer
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status
mlan_process_sta_rx_packet(IN t_void * adapter, IN pmlan_buffer pmbuf)
{
pmlan_adapter pmadapter = (pmlan_adapter) adapter;
mlan_status ret = MLAN_STATUS_SUCCESS;
RxPD *prx_pd;
RxPacketHdr_t *prx_pkt;
pmlan_private priv = pmadapter->priv[pmbuf->bss_num];
t_u8 ta[MLAN_MAC_ADDR_LENGTH];
ENTER();
prx_pd = (RxPD *) (pmbuf->pbuf + pmbuf->data_offset);
/* Endian conversion */
endian_convert_RxPD(prx_pd);
prx_pkt = (RxPacketHdr_t *) ((t_u8 *) prx_pd + prx_pd->rx_pkt_offset);
if ((prx_pd->rx_pkt_offset + prx_pd->rx_pkt_length) >
(t_u16) pmbuf->data_len) {
PRINTM(MERROR,
"Wrong rx packet: len=%d,rx_pkt_offset=%d,"
" rx_pkt_length=%d\n", pmbuf->data_len, prx_pd->rx_pkt_offset,
prx_pd->rx_pkt_length);
ret = MLAN_STATUS_FAILURE;
pmadapter->callbacks.moal_recv_complete(pmadapter->pmoal_handle,
pmbuf, 0, ret);
goto done;
}
pmbuf->data_len = prx_pd->rx_pkt_offset + prx_pd->rx_pkt_length;
if (prx_pd->rx_pkt_type == PKT_TYPE_AMSDU) {
pmbuf->data_len = prx_pd->rx_pkt_length;
pmbuf->data_offset += prx_pd->rx_pkt_offset;
wlan_11n_deaggregate_pkt(priv, pmbuf);
goto done;
}
/*
* If the packet is not an unicast packet then send the packet
* directly to os. Don't pass thru rx reordering
*/
if (!IS_11N_ENABLED(priv) ||
memcmp(priv->curr_addr, prx_pkt->eth803_hdr.dest_addr,
MLAN_MAC_ADDR_LENGTH)) {
wlan_process_rx_packet(pmadapter, pmbuf);
goto done;
}
if (queuing_ra_based(priv)) {
memcpy(ta, prx_pkt->eth803_hdr.src_addr, MLAN_MAC_ADDR_LENGTH);
} else {
memcpy(ta,
priv->curr_bss_params.bss_descriptor.mac_address,
MLAN_MAC_ADDR_LENGTH);
}
/* Reorder and send to OS */
if ((ret = mlan_11n_rxreorder_pkt(priv, prx_pd->seq_num,
prx_pd->priority, ta,
(t_u8) prx_pd->rx_pkt_type,
(void *) pmbuf)) ||
(prx_pd->rx_pkt_type == PKT_TYPE_BAR)
) {
if ((ret =
pmadapter->callbacks.moal_recv_complete(pmadapter->pmoal_handle,
pmbuf, 0, ret)))
PRINTM(MERROR, "RX Error: moal_recv_complete returns" " failure\n");
}
done:
LEAVE();
return (ret);
}
/**
* @brief This function processes the received buffer
*
* @param adapter A pointer to mlan_adapter
* @param pmbuf A pointer to the received buffer
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status
wlan_ops_sta_process_rx_packet(IN t_void * adapter, IN pmlan_buffer pmbuf)
{
pmlan_adapter pmadapter = (pmlan_adapter) adapter;
mlan_status ret = MLAN_STATUS_SUCCESS;
RxPD *prx_pd;
RxPacketHdr_t *prx_pkt;
pmlan_private priv = pmadapter->priv[pmbuf->bss_index];
t_u8 ta[MLAN_MAC_ADDR_LENGTH];
t_u16 rx_pkt_type = 0;
ENTER();
prx_pd = (RxPD *) (pmbuf->pbuf + pmbuf->data_offset);
/* Endian conversion */
endian_convert_RxPD(prx_pd);
rx_pkt_type = prx_pd->rx_pkt_type;
prx_pkt = (RxPacketHdr_t *) ((t_u8 *) prx_pd + prx_pd->rx_pkt_offset);
if ((prx_pd->rx_pkt_offset + prx_pd->rx_pkt_length) >
(t_u16) pmbuf->data_len) {
PRINTM(MERROR,
"Wrong rx packet: len=%d,rx_pkt_offset=%d,"
" rx_pkt_length=%d\n", pmbuf->data_len, prx_pd->rx_pkt_offset,
prx_pd->rx_pkt_length);
pmbuf->status_code = MLAN_ERROR_PKT_SIZE_INVALID;
ret = MLAN_STATUS_FAILURE;
wlan_free_mlan_buffer(pmadapter, pmbuf);
goto done;
}
pmbuf->data_len = prx_pd->rx_pkt_offset + prx_pd->rx_pkt_length;
if (prx_pd->rx_pkt_type == PKT_TYPE_AMSDU) {
pmbuf->data_len = prx_pd->rx_pkt_length;
pmbuf->data_offset += prx_pd->rx_pkt_offset;
wlan_11n_deaggregate_pkt(priv, pmbuf);
goto done;
}
/*
* If the packet is not an unicast packet then send the packet
* directly to os. Don't pass thru rx reordering
*/
if (!IS_11N_ENABLED(priv) ||
memcmp(priv->adapter, priv->curr_addr, prx_pkt->eth803_hdr.dest_addr,
MLAN_MAC_ADDR_LENGTH)) {
wlan_process_rx_packet(pmadapter, pmbuf);
goto done;
}
if (queuing_ra_based(priv)) {
memcpy(pmadapter, ta, prx_pkt->eth803_hdr.src_addr,
MLAN_MAC_ADDR_LENGTH);
} else {
if ((rx_pkt_type != PKT_TYPE_BAR) && (prx_pd->priority < MAX_NUM_TID))
priv->rx_seq[prx_pd->priority] = prx_pd->seq_num;
memcpy(pmadapter, ta,
priv->curr_bss_params.bss_descriptor.mac_address,
MLAN_MAC_ADDR_LENGTH);
}
/* Reorder and send to OS */
if ((ret = mlan_11n_rxreorder_pkt(priv, prx_pd->seq_num,
prx_pd->priority, ta,
(t_u8) prx_pd->rx_pkt_type,
(void *) pmbuf)) ||
(rx_pkt_type == PKT_TYPE_BAR)
) {
wlan_free_mlan_buffer(pmadapter, pmbuf);
}
done:
LEAVE();
return (ret);
}
/**
* @brief This function processes received packet and forwards it
* to kernel/upper layer
*
* @param adapter A pointer to mlan_adapter
* @param pmbuf A pointer to mlan_buffer which includes the received packet
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status
wlan_ops_uap_process_rx_packet(IN t_void * adapter, IN pmlan_buffer pmbuf)
{
pmlan_adapter pmadapter = (pmlan_adapter) adapter;
mlan_status ret = MLAN_STATUS_SUCCESS;
UapRxPD *prx_pd;
wlan_mgmt_pkt *puap_pkt_hdr = MNULL;
RxPacketHdr_t *prx_pkt;
pmlan_private priv = pmadapter->priv[pmbuf->bss_index];
t_u8 ta[MLAN_MAC_ADDR_LENGTH];
t_u16 rx_pkt_type = 0;
sta_node *sta_ptr = MNULL;
ENTER();
prx_pd = (UapRxPD *) (pmbuf->pbuf + pmbuf->data_offset);
/* Endian conversion */
uap_endian_convert_RxPD(prx_pd);
rx_pkt_type = prx_pd->rx_pkt_type;
prx_pkt = (RxPacketHdr_t *) ((t_u8 *) prx_pd + prx_pd->rx_pkt_offset);
PRINTM(MINFO, "RX Data: data_len - prx_pd->rx_pkt_offset = %d - %d = %d\n",
pmbuf->data_len, prx_pd->rx_pkt_offset,
pmbuf->data_len - prx_pd->rx_pkt_offset);
if ((prx_pd->rx_pkt_offset + prx_pd->rx_pkt_length) >
(t_u16) pmbuf->data_len) {
PRINTM(MERROR,
"Wrong rx packet: len=%d,rx_pkt_offset=%d,"
" rx_pkt_length=%d\n", pmbuf->data_len, prx_pd->rx_pkt_offset,
prx_pd->rx_pkt_length);
pmbuf->status_code = MLAN_ERROR_PKT_SIZE_INVALID;
ret = MLAN_STATUS_FAILURE;
pmadapter->callbacks.moal_recv_complete(pmadapter->pmoal_handle,
pmbuf, MLAN_USB_EP_DATA, ret);
goto done;
}
pmbuf->data_len = prx_pd->rx_pkt_offset + prx_pd->rx_pkt_length;
if (pmadapter->priv[pmbuf->bss_index]->mgmt_frame_passthru_mask &&
prx_pd->rx_pkt_type == PKT_TYPE_MGMT_FRAME) {
/* Check if this is mgmt packet and needs to forwarded to app as an
event */
puap_pkt_hdr =
(wlan_mgmt_pkt *) ((t_u8 *) prx_pd + prx_pd->rx_pkt_offset);
puap_pkt_hdr->frm_len = wlan_le16_to_cpu(puap_pkt_hdr->frm_len);
if ((puap_pkt_hdr->wlan_header.
frm_ctl & IEEE80211_FC_MGMT_FRAME_TYPE_MASK) == 0)
wlan_process_802dot11_mgmt_pkt(pmadapter->priv[pmbuf->bss_index],
(t_u8 *) & puap_pkt_hdr->wlan_header,
puap_pkt_hdr->frm_len +
sizeof(wlan_mgmt_pkt) -
sizeof(puap_pkt_hdr->frm_len));
}
pmbuf->priority = prx_pd->priority;
if (prx_pd->rx_pkt_type == PKT_TYPE_AMSDU) {
pmbuf->data_len = prx_pd->rx_pkt_length;
pmbuf->data_offset += prx_pd->rx_pkt_offset;
wlan_11n_deaggregate_pkt(priv, pmbuf);
goto done;
}
memcpy(pmadapter, ta, prx_pkt->eth803_hdr.src_addr, MLAN_MAC_ADDR_LENGTH);
if ((rx_pkt_type != PKT_TYPE_BAR) && (prx_pd->priority < MAX_NUM_TID)) {
if ((sta_ptr = wlan_get_station_entry(priv, ta)))
sta_ptr->rx_seq[prx_pd->priority] = prx_pd->seq_num;
}
/* check if UAP enable 11n */
if (!priv->is_11n_enabled ||
!wlan_11n_get_rxreorder_tbl((mlan_private *) priv, prx_pd->priority,
ta)) {
if (priv->pkt_fwd)
wlan_process_uap_rx_packet(priv, pmbuf);
else
wlan_upload_uap_rx_packet(pmadapter, pmbuf);
goto done;
}
/* Reorder and send to OS */
if ((ret = mlan_11n_rxreorder_pkt(priv, prx_pd->seq_num,
prx_pd->priority, ta,
(t_u8) prx_pd->rx_pkt_type,
(void *) pmbuf))
|| (rx_pkt_type == PKT_TYPE_BAR)) {
if ((ret =
pmadapter->callbacks.moal_recv_complete(pmadapter->pmoal_handle,
pmbuf, MLAN_USB_EP_DATA,
ret)))
PRINTM(MERROR, "uAP Rx Error: moal_recv_complete returned error\n");
}
done:
if (priv->is_11n_enabled &&
(pmadapter->pending_bridge_pkts >= RX_MED_THRESHOLD))
wlan_send_delba_to_all_in_reorder_tbl(priv);
LEAVE();
return ret;
}
