/** @file mlan_uap_txrx.c * * @brief This file contains AP mode transmit and receive functions * * * Copyright 2009-2021 NXP * * NXP CONFIDENTIAL * The source code contained or described herein and all documents related to * the source code (Materials) are owned by NXP, its * suppliers and/or its licensors. Title to the Materials remains with NXP, * its suppliers and/or its licensors. The Materials contain * trade secrets and proprietary and confidential information of NXP, its * suppliers and/or its licensors. The Materials are protected by worldwide * copyright and trade secret laws and treaty provisions. No part of the * Materials may be used, copied, reproduced, modified, published, uploaded, * posted, transmitted, distributed, or disclosed in any way without NXP's * prior express written permission. * * No license under any patent, copyright, trade secret or other intellectual * property right is granted to or conferred upon you by disclosure or delivery * of the Materials, either expressly, by implication, inducement, estoppel or * otherwise. Any license under such intellectual property rights must be * express and approved by NXP in writing. * * Alternatively, this software may be distributed under the terms of GPL v2. * SPDX-License-Identifier: GPL-2.0 * * */ /******************************************************** Change log: 02/05/2009: initial version ********************************************************/ #include "mlan.h" #include "mlan_util.h" #include "mlan_fw.h" #ifdef STA_SUPPORT #include "mlan_join.h" #endif #include "mlan_main.h" #include "mlan_uap.h" #include "mlan_wmm.h" #include "mlan_11n_aggr.h" #include "mlan_11n_rxreorder.h" #ifdef DRV_EMBEDDED_AUTHENTICATOR #include "authenticator_api.h" #endif /******************************************************** Local Functions ********************************************************/ /** * @brief This function processes received packet and forwards it * to kernel/upper layer * * @param pmadapter 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 */ static mlan_status wlan_upload_uap_rx_packet(pmlan_adapter pmadapter, pmlan_buffer pmbuf) { mlan_status ret = MLAN_STATUS_SUCCESS; #ifdef DEBUG_LEVEL1 pmlan_private priv = pmadapter->priv[pmbuf->bss_index]; #endif PRxPD prx_pd; ENTER(); prx_pd = (RxPD *)(pmbuf->pbuf + pmbuf->data_offset); /* Chop off RxPD */ pmbuf->data_len -= prx_pd->rx_pkt_offset; pmbuf->data_offset += prx_pd->rx_pkt_offset; pmbuf->pparent = MNULL; DBG_HEXDUMP(MDAT_D, "uAP RxPD", (t_u8 *)prx_pd, MIN(sizeof(RxPD), MAX_DATA_DUMP_LEN)); DBG_HEXDUMP(MDAT_D, "uAP Rx Payload", ((t_u8 *)prx_pd + prx_pd->rx_pkt_offset), MIN(prx_pd->rx_pkt_length, MAX_DATA_DUMP_LEN)); pmadapter->callbacks.moal_get_system_time(pmadapter->pmoal_handle, &pmbuf->out_ts_sec, &pmbuf->out_ts_usec); PRINTM_NETINTF(MDATA, priv); PRINTM(MDATA, "%lu.%06lu : Data => kernel seq_num=%d tid=%d\n", pmbuf->out_ts_sec, pmbuf->out_ts_usec, prx_pd->seq_num, prx_pd->priority); ret = pmadapter->callbacks.moal_recv_packet(pmadapter->pmoal_handle, pmbuf); if (ret == MLAN_STATUS_FAILURE) { PRINTM(MERROR, "uAP Rx Error: moal_recv_packet returned error\n"); pmbuf->status_code = MLAN_ERROR_PKT_INVALID; } if (ret != MLAN_STATUS_PENDING) pmadapter->ops.data_complete(pmadapter, pmbuf, ret); #ifdef USB else if (IS_USB(pmadapter->card_type)) pmadapter->callbacks.moal_recv_complete(pmadapter->pmoal_handle, MNULL, pmadapter->rx_data_ep, ret); #endif LEAVE(); return ret; } /** * @brief This function will check if unicast packet need be dropped * * @param priv A pointer to mlan_private * @param mac mac address to find in station list table * * @return MLAN_STATUS_FAILURE -- drop packet, otherwise forward to * network stack */ static mlan_status wlan_check_unicast_packet(mlan_private *priv, t_u8 *mac) { int j; sta_node *sta_ptr = MNULL; pmlan_adapter pmadapter = priv->adapter; pmlan_private pmpriv = MNULL; t_u8 pkt_type = 0; mlan_status ret = MLAN_STATUS_SUCCESS; ENTER(); for (j = 0; j < MLAN_MAX_BSS_NUM; ++j) { pmpriv = pmadapter->priv[j]; if (pmpriv) { if (GET_BSS_ROLE(pmpriv) == MLAN_BSS_ROLE_STA) continue; sta_ptr = wlan_get_station_entry(pmpriv, mac); if (sta_ptr) { if (pmpriv == priv) pkt_type = PKT_INTRA_UCAST; else pkt_type = PKT_INTER_UCAST; break; } } } if ((pkt_type == PKT_INTRA_UCAST) && (priv->pkt_fwd & PKT_FWD_INTRA_UCAST)) { PRINTM(MDATA, "Drop INTRA_UCAST packet\n"); ret = MLAN_STATUS_FAILURE; } else if ((pkt_type == PKT_INTER_UCAST) && (priv->pkt_fwd & PKT_FWD_INTER_UCAST)) { PRINTM(MDATA, "Drop INTER_UCAST packet\n"); ret = MLAN_STATUS_FAILURE; } LEAVE(); return ret; } /******************************************************** Global Functions ********************************************************/ /** * @brief This function fill the txpd for tx packet * * @param priv A pointer to mlan_private structure * @param pmbuf A pointer to the mlan_buffer for process * * @return headptr or MNULL */ t_void *wlan_ops_uap_process_txpd(t_void *priv, pmlan_buffer pmbuf) { pmlan_private pmpriv = (pmlan_private)priv; TxPD *plocal_tx_pd; t_u8 *head_ptr = MNULL; t_u32 pkt_type; t_u32 tx_control; t_u8 dst_mac[MLAN_MAC_ADDR_LENGTH]; ENTER(); if (!pmbuf->data_len) { PRINTM(MERROR, "uAP Tx Error: Invalid packet length: %d\n", pmbuf->data_len); pmbuf->status_code = MLAN_ERROR_PKT_SIZE_INVALID; goto done; } if (pmbuf->buf_type == MLAN_BUF_TYPE_RAW_DATA) { memcpy_ext(pmpriv->adapter, &pkt_type, pmbuf->pbuf + pmbuf->data_offset, sizeof(pkt_type), sizeof(pkt_type)); memcpy_ext(pmpriv->adapter, &tx_control, pmbuf->pbuf + pmbuf->data_offset + sizeof(pkt_type), sizeof(tx_control), sizeof(tx_control)); pmbuf->data_offset += sizeof(pkt_type) + sizeof(tx_control); pmbuf->data_len -= sizeof(pkt_type) + sizeof(tx_control); } if (pmbuf->data_offset < (sizeof(TxPD) + pmpriv->intf_hr_len + DMA_ALIGNMENT)) { PRINTM(MERROR, "not enough space for TxPD: headroom=%d pkt_len=%d, required=%d\n", pmbuf->data_offset, pmbuf->data_len, sizeof(TxPD) + pmpriv->intf_hr_len + DMA_ALIGNMENT); DBG_HEXDUMP(MDAT_D, "drop pkt", pmbuf->pbuf + pmbuf->data_offset, pmbuf->data_len); pmbuf->status_code = MLAN_ERROR_PKT_SIZE_INVALID; goto done; } /* head_ptr should be aligned */ head_ptr = pmbuf->pbuf + pmbuf->data_offset - sizeof(TxPD) - pmpriv->intf_hr_len; head_ptr = (t_u8 *)((t_ptr)head_ptr & ~((t_ptr)(DMA_ALIGNMENT - 1))); plocal_tx_pd = (TxPD *)(head_ptr + pmpriv->intf_hr_len); memset(pmpriv->adapter, plocal_tx_pd, 0, sizeof(TxPD)); /* Set the BSS number to TxPD */ plocal_tx_pd->bss_num = GET_BSS_NUM(pmpriv); plocal_tx_pd->bss_type = pmpriv->bss_type; plocal_tx_pd->tx_pkt_length = (t_u16)pmbuf->data_len; plocal_tx_pd->priority = (t_u8)pmbuf->priority; plocal_tx_pd->pkt_delay_2ms = wlan_wmm_compute_driver_packet_delay(pmpriv, pmbuf); if (plocal_tx_pd->priority < NELEMENTS(pmpriv->wmm.user_pri_pkt_tx_ctrl)) /* * Set the priority specific tx_control field, setting of 0 will * cause the default value to be used later in this function */ plocal_tx_pd->tx_control = pmpriv->wmm.user_pri_pkt_tx_ctrl[plocal_tx_pd->priority]; if (pmbuf->flags & MLAN_BUF_FLAG_TX_STATUS) { plocal_tx_pd->tx_control_1 |= pmbuf->tx_seq_num << 8; plocal_tx_pd->flags |= MRVDRV_TxPD_FLAGS_TX_PACKET_STATUS; } /* Offset of actual data */ plocal_tx_pd->tx_pkt_offset = (t_u16)( (t_ptr)pmbuf->pbuf + pmbuf->data_offset - (t_ptr)plocal_tx_pd); if (!plocal_tx_pd->tx_control) { /* TxCtrl set by user or default */ plocal_tx_pd->tx_control = pmpriv->pkt_tx_ctrl; } if (pmbuf->buf_type == MLAN_BUF_TYPE_RAW_DATA) { plocal_tx_pd->tx_pkt_type = (t_u16)pkt_type; plocal_tx_pd->tx_control = tx_control; } if (pmbuf->flags & MLAN_BUF_FLAG_TX_CTRL) { if (pmbuf->u.tx_info.data_rate) { memcpy_ext(pmpriv->adapter, dst_mac, pmbuf->pbuf + pmbuf->data_offset, sizeof(dst_mac), sizeof(dst_mac)); plocal_tx_pd->tx_control |= (wlan_ieee_rateid_to_mrvl_rateid( pmpriv, pmbuf->u.tx_info.data_rate, dst_mac) << 16); plocal_tx_pd->tx_control |= TXPD_TXRATE_ENABLE; } plocal_tx_pd->tx_control_1 |= pmbuf->u.tx_info.channel << 21; if (pmbuf->u.tx_info.bw) { plocal_tx_pd->tx_control_1 |= pmbuf->u.tx_info.bw << 16; plocal_tx_pd->tx_control_1 |= TXPD_BW_ENABLE; } if (pmbuf->u.tx_info.tx_power.tp.hostctl) plocal_tx_pd->tx_control |= (t_u32)pmbuf->u.tx_info.tx_power.val; if (pmbuf->u.tx_info.retry_limit) { plocal_tx_pd->tx_control |= pmbuf->u.tx_info.retry_limit << 8; plocal_tx_pd->tx_control |= TXPD_RETRY_ENABLE; } } if (pmbuf->flags & MLAN_BUF_FLAG_MC_AGGR_PKT) { tx_ctrl *ctrl = (tx_ctrl *)&plocal_tx_pd->tx_control; mc_tx_ctrl *mc_ctrl = (mc_tx_ctrl *)&plocal_tx_pd->pkt_delay_2ms; plocal_tx_pd->tx_pkt_type = PKT_TYPE_802DOT11_MC_AGGR; if (pmbuf->u.mc_tx_info.mc_pkt_flags & MC_FLAG_START_CYCLE) ctrl->mc_cycle_start = MTRUE; else ctrl->mc_cycle_start = MFALSE; if (pmbuf->u.mc_tx_info.mc_pkt_flags & MC_FLAG_END_CYCLE) ctrl->mc_cycle_end = MTRUE; else ctrl->mc_cycle_end = MFALSE; if (pmbuf->u.mc_tx_info.mc_pkt_flags & MC_FLAG_START_AMPDU) ctrl->mc_ampdu_start = MTRUE; else ctrl->mc_ampdu_start = MFALSE; if (pmbuf->u.mc_tx_info.mc_pkt_flags & MC_FLAG_END_AMPDU) ctrl->mc_ampdu_end = MTRUE; else ctrl->mc_ampdu_end = MFALSE; if (pmbuf->u.mc_tx_info.mc_pkt_flags & MC_FLAG_RETRY) ctrl->mc_pkt_retry = MTRUE; else ctrl->mc_pkt_retry = MFALSE; ctrl->bw = pmbuf->u.mc_tx_info.bandwidth & 0x7; ctrl->tx_rate = pmbuf->u.mc_tx_info.mcs_index & 0x1f; mc_ctrl->abs_tsf_expirytime = wlan_cpu_to_le32(pmbuf->u.mc_tx_info.pkt_expiry); mc_ctrl->mc_seq = wlan_cpu_to_le16(pmbuf->u.mc_tx_info.seq_num); } endian_convert_TxPD(plocal_tx_pd); /* Adjust the data offset and length to include TxPD in pmbuf */ pmbuf->data_len += pmbuf->data_offset; pmbuf->data_offset = (t_u32)((t_ptr)head_ptr - (t_ptr)pmbuf->pbuf); pmbuf->data_len -= pmbuf->data_offset; done: LEAVE(); return head_ptr; } /** * @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(t_void *adapter, pmlan_buffer pmbuf) { pmlan_adapter pmadapter = (pmlan_adapter)adapter; mlan_status ret = MLAN_STATUS_SUCCESS; RxPD *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; #ifdef DRV_EMBEDDED_AUTHENTICATOR t_u8 eapol_type[2] = {0x88, 0x8e}; #endif t_u16 adj_rx_rate = 0; t_u8 antenna = 0; t_u32 last_rx_sec = 0; t_u32 last_rx_usec = 0; t_u8 ext_rate_info = 0; ENTER(); prx_pd = (RxPD *)(pmbuf->pbuf + pmbuf->data_offset); /* Endian conversion */ endian_convert_RxPD(prx_pd); if (prx_pd->flags & RXPD_FLAG_EXTRA_HEADER) { endian_convert_RxPD_extra_header( (rxpd_extra_info *)((t_u8 *)prx_pd + sizeof(*prx_pd))); } if (priv->adapter->pcard_info->v14_fw_api) { t_u8 rxpd_rate_info_orig = prx_pd->rate_info; prx_pd->rate_info = wlan_convert_v14_rx_rate_info( priv, rxpd_rate_info_orig); PRINTM(MINFO, "UAP RX: v14_fw_api=%d rx_rate =%d rxpd_rate_info=0x%x->0x%x\n", priv->adapter->pcard_info->v14_fw_api, prx_pd->rx_rate, rxpd_rate_info_orig, prx_pd->rate_info); } if (priv->rx_pkt_info) { ext_rate_info = (t_u8)(prx_pd->rx_info >> 16); pmbuf->u.rx_info.data_rate = wlan_index_to_data_rate(priv->adapter, prx_pd->rx_rate, prx_pd->rate_info, ext_rate_info); pmbuf->u.rx_info.channel = (prx_pd->rx_info & RXPD_CHAN_MASK) >> 5; pmbuf->u.rx_info.antenna = prx_pd->antenna; pmbuf->u.rx_info.rssi = prx_pd->snr - prx_pd->nf; } 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->ops.data_complete(pmadapter, pmbuf, 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), (RxPD *)prx_pd); pmadapter->ops.data_complete(pmadapter, pmbuf, ret); goto done; } if (rx_pkt_type != PKT_TYPE_BAR) { priv->rxpd_rate = prx_pd->rx_rate; priv->rxpd_rate_info = prx_pd->rate_info; priv->rxpd_rx_info = (t_u8)(prx_pd->rx_info >> 16); if (priv->bss_type == MLAN_BSS_TYPE_UAP) { antenna = wlan_adjust_antenna(priv, (RxPD *)prx_pd); adj_rx_rate = wlan_adjust_data_rate( priv, priv->rxpd_rate, priv->rxpd_rate_info); pmadapter->callbacks.moal_hist_data_add( pmadapter->pmoal_handle, pmbuf->bss_index, adj_rx_rate, prx_pd->snr, prx_pd->nf, antenna); } } sta_ptr = wlan_get_station_entry(priv, prx_pkt->eth803_hdr.src_addr); if (sta_ptr) { sta_ptr->snr = prx_pd->snr; sta_ptr->nf = prx_pd->nf; pmadapter->callbacks.moal_get_system_time( pmadapter->pmoal_handle, &last_rx_sec, &last_rx_usec); sta_ptr->stats.last_rx_in_msec = (t_u64)last_rx_sec * 1000 + (t_u64)last_rx_usec / 1000; } #ifdef DRV_EMBEDDED_AUTHENTICATOR /**process eapol packet for uap*/ if (IsAuthenticatorEnabled(priv->psapriv) && (!memcmp(pmadapter, &prx_pkt->eth803_hdr.h803_len, eapol_type, sizeof(eapol_type)))) { ret = AuthenticatorProcessEapolPacket( priv->psapriv, ((t_u8 *)prx_pd + prx_pd->rx_pkt_offset), prx_pd->rx_pkt_length); if (ret == MLAN_STATUS_SUCCESS) { pmadapter->ops.data_complete(pmadapter, pmbuf, ret); goto done; } } #endif pmbuf->priority |= prx_pd->priority; memcpy_ext(pmadapter, ta, prx_pkt->eth803_hdr.src_addr, MLAN_MAC_ADDR_LENGTH, MLAN_MAC_ADDR_LENGTH); if ((rx_pkt_type != PKT_TYPE_BAR) && (prx_pd->priority < MAX_NUM_TID)) { sta_ptr = wlan_get_station_entry(priv, ta); if (sta_ptr) { sta_ptr->rx_seq[prx_pd->priority] = prx_pd->seq_num; sta_ptr->snr = prx_pd->snr; sta_ptr->nf = prx_pd->nf; } } /* check if UAP enable 11n */ if (!priv->is_11n_enabled || (!wlan_11n_get_rxreorder_tbl((mlan_private *)priv, prx_pd->priority, ta) && (prx_pd->rx_pkt_type != PKT_TYPE_AMSDU))) { 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 */ ret = mlan_11n_rxreorder_pkt(priv, prx_pd->seq_num, prx_pd->priority, ta, (t_u8)prx_pd->rx_pkt_type, (void *)pmbuf); if (ret || (rx_pkt_type == PKT_TYPE_BAR)) { pmadapter->ops.data_complete(pmadapter, pmbuf, ret); } done: LEAVE(); return ret; } /** * @brief This function processes received packet and forwards it * to kernel/upper layer or send back to firmware * * @param priv A pointer to mlan_private * @param pmbuf A pointer to mlan_buffer which includes the received packet * * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE */ mlan_status wlan_uap_recv_packet(mlan_private *priv, pmlan_buffer pmbuf) { pmlan_adapter pmadapter = priv->adapter; mlan_status ret = MLAN_STATUS_SUCCESS; RxPacketHdr_t *prx_pkt; pmlan_buffer newbuf = MNULL; ENTER(); prx_pkt = (RxPacketHdr_t *)((t_u8 *)pmbuf->pbuf + pmbuf->data_offset); DBG_HEXDUMP(MDAT_D, "uap_recv_packet", pmbuf->pbuf + pmbuf->data_offset, MIN(pmbuf->data_len, MAX_DATA_DUMP_LEN)); PRINTM(MDATA, "AMSDU dest " MACSTR "\n", MAC2STR(prx_pkt->eth803_hdr.dest_addr)); /* don't do packet forwarding in disconnected state */ if (priv->media_connected == MFALSE) goto upload; if (prx_pkt->eth803_hdr.dest_addr[0] & 0x01) { if (!(priv->pkt_fwd & PKT_FWD_INTRA_BCAST)) { /* Multicast pkt */ newbuf = wlan_alloc_mlan_buffer(pmadapter, MLAN_TX_DATA_BUF_SIZE_2K, 0, MOAL_MALLOC_BUFFER); if (newbuf) { newbuf->bss_index = pmbuf->bss_index; newbuf->buf_type = pmbuf->buf_type; newbuf->priority = pmbuf->priority; newbuf->in_ts_sec = pmbuf->in_ts_sec; newbuf->in_ts_usec = pmbuf->in_ts_usec; newbuf->data_offset = (sizeof(TxPD) + priv->intf_hr_len + DMA_ALIGNMENT); util_scalar_increment( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks.moal_spin_lock, pmadapter->callbacks.moal_spin_unlock); newbuf->flags |= MLAN_BUF_FLAG_BRIDGE_BUF; /* copy the data */ memcpy_ext(pmadapter, (t_u8 *)newbuf->pbuf + newbuf->data_offset, pmbuf->pbuf + pmbuf->data_offset, pmbuf->data_len, MLAN_TX_DATA_BUF_SIZE_2K); newbuf->data_len = pmbuf->data_len; wlan_wmm_add_buf_txqueue(pmadapter, newbuf); if (util_scalar_read( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks.moal_spin_lock, pmadapter->callbacks .moal_spin_unlock) > RX_HIGH_THRESHOLD) wlan_drop_tx_pkts(priv); wlan_recv_event( priv, MLAN_EVENT_ID_DRV_DEFER_HANDLING, MNULL); } } } else { if ((!(priv->pkt_fwd & PKT_FWD_INTRA_UCAST)) && (wlan_get_station_entry(priv, prx_pkt->eth803_hdr.dest_addr))) { /* Intra BSS packet */ newbuf = wlan_alloc_mlan_buffer(pmadapter, MLAN_TX_DATA_BUF_SIZE_2K, 0, MOAL_MALLOC_BUFFER); if (newbuf) { newbuf->bss_index = pmbuf->bss_index; newbuf->buf_type = pmbuf->buf_type; newbuf->priority = pmbuf->priority; newbuf->in_ts_sec = pmbuf->in_ts_sec; newbuf->in_ts_usec = pmbuf->in_ts_usec; newbuf->data_offset = (sizeof(TxPD) + priv->intf_hr_len + DMA_ALIGNMENT); util_scalar_increment( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks.moal_spin_lock, pmadapter->callbacks.moal_spin_unlock); newbuf->flags |= MLAN_BUF_FLAG_BRIDGE_BUF; /* copy the data */ memcpy_ext(pmadapter, (t_u8 *)newbuf->pbuf + newbuf->data_offset, pmbuf->pbuf + pmbuf->data_offset, pmbuf->data_len, MLAN_TX_DATA_BUF_SIZE_2K); newbuf->data_len = pmbuf->data_len; wlan_wmm_add_buf_txqueue(pmadapter, newbuf); if (util_scalar_read( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks.moal_spin_lock, pmadapter->callbacks .moal_spin_unlock) > RX_HIGH_THRESHOLD) wlan_drop_tx_pkts(priv); wlan_recv_event( priv, MLAN_EVENT_ID_DRV_DEFER_HANDLING, MNULL); } goto done; } else if (MLAN_STATUS_FAILURE == wlan_check_unicast_packet( priv, prx_pkt->eth803_hdr.dest_addr)) { /* drop packet */ PRINTM(MDATA, "Drop AMSDU dest " MACSTR "\n", MAC2STR(prx_pkt->eth803_hdr.dest_addr)); goto done; } } upload: /** send packet to moal */ ret = pmadapter->callbacks.moal_recv_packet(pmadapter->pmoal_handle, pmbuf); done: LEAVE(); return ret; } /** * @brief This function processes received packet and forwards it * to kernel/upper layer or send back to firmware * * @param priv A pointer to mlan_private * @param pmbuf A pointer to mlan_buffer which includes the received packet * * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE */ mlan_status wlan_process_uap_rx_packet(mlan_private *priv, pmlan_buffer pmbuf) { pmlan_adapter pmadapter = priv->adapter; mlan_status ret = MLAN_STATUS_SUCCESS; RxPD *prx_pd; RxPacketHdr_t *prx_pkt; pmlan_buffer newbuf = MNULL; ENTER(); prx_pd = (RxPD *)(pmbuf->pbuf + pmbuf->data_offset); prx_pkt = (RxPacketHdr_t *)((t_u8 *)prx_pd + prx_pd->rx_pkt_offset); DBG_HEXDUMP(MDAT_D, "uAP RxPD", prx_pd, MIN(sizeof(RxPD), MAX_DATA_DUMP_LEN)); DBG_HEXDUMP(MDAT_D, "uAP Rx Payload", ((t_u8 *)prx_pd + prx_pd->rx_pkt_offset), MIN(prx_pd->rx_pkt_length, MAX_DATA_DUMP_LEN)); 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); PRINTM(MDATA, "Rx dest " MACSTR "\n", MAC2STR(prx_pkt->eth803_hdr.dest_addr)); if (pmadapter->enable_net_mon) { pmbuf->flags |= MLAN_BUF_FLAG_NET_MONITOR; goto upload; } /* don't do packet forwarding in disconnected state */ /* don't do packet forwarding when packet > 1514 */ if (priv->media_connected == MFALSE) goto upload; if (prx_pkt->eth803_hdr.dest_addr[0] & 0x01) { if (!(priv->pkt_fwd & PKT_FWD_INTRA_BCAST)) { /* Multicast pkt */ newbuf = wlan_alloc_mlan_buffer(pmadapter, MLAN_TX_DATA_BUF_SIZE_2K, 0, MOAL_MALLOC_BUFFER); if (newbuf) { newbuf->bss_index = pmbuf->bss_index; newbuf->buf_type = pmbuf->buf_type; newbuf->priority = pmbuf->priority; newbuf->in_ts_sec = pmbuf->in_ts_sec; newbuf->in_ts_usec = pmbuf->in_ts_usec; newbuf->data_offset = (sizeof(TxPD) + priv->intf_hr_len + DMA_ALIGNMENT); util_scalar_increment( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks.moal_spin_lock, pmadapter->callbacks.moal_spin_unlock); newbuf->flags |= MLAN_BUF_FLAG_BRIDGE_BUF; /* copy the data, skip rxpd */ memcpy_ext(pmadapter, (t_u8 *)newbuf->pbuf + newbuf->data_offset, pmbuf->pbuf + pmbuf->data_offset + prx_pd->rx_pkt_offset, pmbuf->data_len - prx_pd->rx_pkt_offset, MLAN_TX_DATA_BUF_SIZE_2K); newbuf->data_len = pmbuf->data_len - prx_pd->rx_pkt_offset; wlan_wmm_add_buf_txqueue(pmadapter, newbuf); if (util_scalar_read( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks.moal_spin_lock, pmadapter->callbacks .moal_spin_unlock) > RX_HIGH_THRESHOLD) wlan_drop_tx_pkts(priv); wlan_recv_event( priv, MLAN_EVENT_ID_DRV_DEFER_HANDLING, MNULL); } } } else { if ((!(priv->pkt_fwd & PKT_FWD_INTRA_UCAST)) && (wlan_get_station_entry(priv, prx_pkt->eth803_hdr.dest_addr))) { /* Forwarding Intra-BSS packet */ #ifdef USB if (IS_USB(pmadapter->card_type)) { if (pmbuf->flags & MLAN_BUF_FLAG_RX_DEAGGR) { newbuf = wlan_alloc_mlan_buffer( pmadapter, MLAN_TX_DATA_BUF_SIZE_2K, 0, MOAL_MALLOC_BUFFER); if (newbuf) { newbuf->bss_index = pmbuf->bss_index; newbuf->buf_type = pmbuf->buf_type; newbuf->priority = pmbuf->priority; newbuf->in_ts_sec = pmbuf->in_ts_sec; newbuf->in_ts_usec = pmbuf->in_ts_usec; newbuf->data_offset = (sizeof(TxPD) + priv->intf_hr_len + DMA_ALIGNMENT); util_scalar_increment( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks .moal_spin_lock, pmadapter->callbacks .moal_spin_unlock); newbuf->flags |= MLAN_BUF_FLAG_BRIDGE_BUF; /* copy the data, skip rxpd */ memcpy_ext( pmadapter, (t_u8 *)newbuf->pbuf + newbuf->data_offset, pmbuf->pbuf + pmbuf->data_offset + prx_pd->rx_pkt_offset, pmbuf->data_len - prx_pd->rx_pkt_offset, pmbuf->data_len - prx_pd->rx_pkt_offset); newbuf->data_len = pmbuf->data_len - prx_pd->rx_pkt_offset; wlan_wmm_add_buf_txqueue( pmadapter, newbuf); if (util_scalar_read( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks .moal_spin_lock, pmadapter->callbacks .moal_spin_unlock) > RX_HIGH_THRESHOLD) wlan_drop_tx_pkts(priv); wlan_recv_event( priv, MLAN_EVENT_ID_DRV_DEFER_HANDLING, MNULL); } pmadapter->callbacks.moal_recv_complete( pmadapter->pmoal_handle, pmbuf, pmadapter->rx_data_ep, ret); goto done; } } #endif pmbuf->data_len -= prx_pd->rx_pkt_offset; pmbuf->data_offset += prx_pd->rx_pkt_offset; pmbuf->flags |= MLAN_BUF_FLAG_BRIDGE_BUF; util_scalar_increment( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks.moal_spin_lock, pmadapter->callbacks.moal_spin_unlock); wlan_wmm_add_buf_txqueue(pmadapter, pmbuf); if (util_scalar_read( pmadapter->pmoal_handle, &pmadapter->pending_bridge_pkts, pmadapter->callbacks.moal_spin_lock, pmadapter->callbacks.moal_spin_unlock) > RX_HIGH_THRESHOLD) wlan_drop_tx_pkts(priv); wlan_recv_event(priv, MLAN_EVENT_ID_DRV_DEFER_HANDLING, MNULL); goto done; } else if (MLAN_STATUS_FAILURE == wlan_check_unicast_packet( priv, prx_pkt->eth803_hdr.dest_addr)) { PRINTM(MDATA, "Drop Pkts: Rx dest " MACSTR "\n", MAC2STR(prx_pkt->eth803_hdr.dest_addr)); pmbuf->status_code = MLAN_ERROR_PKT_INVALID; pmadapter->ops.data_complete(pmadapter, pmbuf, ret); goto done; } } upload: /* Chop off RxPD */ pmbuf->data_len -= prx_pd->rx_pkt_offset; pmbuf->data_offset += prx_pd->rx_pkt_offset; pmbuf->pparent = MNULL; pmadapter->callbacks.moal_get_system_time(pmadapter->pmoal_handle, &pmbuf->out_ts_sec, &pmbuf->out_ts_usec); PRINTM_NETINTF(MDATA, priv); PRINTM(MDATA, "%lu.%06lu : Data => kernel seq_num=%d tid=%d\n", pmbuf->out_ts_sec, pmbuf->out_ts_usec, prx_pd->seq_num, prx_pd->priority); if (pmbuf->flags & MLAN_BUF_FLAG_NET_MONITOR) { // Use some rxpd space to save rxpd info for radiotap header // We should insure radiotap_info is not bigger than RxPD wlan_rxpdinfo_to_radiotapinfo( priv, (RxPD *)prx_pd, (radiotap_info *)(pmbuf->pbuf + pmbuf->data_offset - sizeof(radiotap_info))); } ret = pmadapter->callbacks.moal_recv_packet(pmadapter->pmoal_handle, pmbuf); if (ret == MLAN_STATUS_FAILURE) { PRINTM(MERROR, "uAP Rx Error: moal_recv_packet returned error\n"); pmbuf->status_code = MLAN_ERROR_PKT_INVALID; } if (ret != MLAN_STATUS_PENDING) pmadapter->ops.data_complete(pmadapter, pmbuf, ret); #ifdef USB else if (IS_USB(pmadapter->card_type)) pmadapter->callbacks.moal_recv_complete(pmadapter->pmoal_handle, MNULL, pmadapter->rx_data_ep, ret); #endif done: LEAVE(); return ret; }