diff options
Diffstat (limited to 'drivers/staging/rtl8723bs/os_dep/recv_linux.c')
| -rw-r--r-- | drivers/staging/rtl8723bs/os_dep/recv_linux.c | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/drivers/staging/rtl8723bs/os_dep/recv_linux.c b/drivers/staging/rtl8723bs/os_dep/recv_linux.c new file mode 100644 index 0000000..e731ab4e --- /dev/null +++ b/drivers/staging/rtl8723bs/os_dep/recv_linux.c @@ -0,0 +1,365 @@ +/****************************************************************************** + * + * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + ******************************************************************************/ +#define _RECV_OSDEP_C_ + +#include <drv_types.h> +#include <rtw_debug.h> +#include <linux/jiffies.h> + +void rtw_os_free_recvframe(union recv_frame *precvframe) +{ + if (precvframe->u.hdr.pkt) + { + dev_kfree_skb_any(precvframe->u.hdr.pkt);/* free skb by driver */ + + precvframe->u.hdr.pkt = NULL; + } +} + +/* alloc os related resource in union recv_frame */ +int rtw_os_recv_resource_alloc(struct adapter *padapter, union recv_frame *precvframe) +{ + int res = _SUCCESS; + + precvframe->u.hdr.pkt_newalloc = precvframe->u.hdr.pkt = NULL; + + return res; +} + +/* free os related resource in union recv_frame */ +void rtw_os_recv_resource_free(struct recv_priv *precvpriv) +{ + sint i; + union recv_frame *precvframe; + precvframe = (union recv_frame*) precvpriv->precv_frame_buf; + + for (i = 0; i < NR_RECVFRAME; i++) + { + if (precvframe->u.hdr.pkt) + { + dev_kfree_skb_any(precvframe->u.hdr.pkt);/* free skb by driver */ + precvframe->u.hdr.pkt = NULL; + } + precvframe++; + } +} + +/* free os related resource in struct recv_buf */ +int rtw_os_recvbuf_resource_free(struct adapter *padapter, struct recv_buf *precvbuf) +{ + int ret = _SUCCESS; + + if (precvbuf->pskb) + { + dev_kfree_skb_any(precvbuf->pskb); + } + return ret; + +} + +_pkt *rtw_os_alloc_msdu_pkt(union recv_frame *prframe, u16 nSubframe_Length, u8 *pdata) +{ + u16 eth_type; + u8 *data_ptr; + _pkt *sub_skb; + struct rx_pkt_attrib *pattrib; + + pattrib = &prframe->u.hdr.attrib; + + sub_skb = rtw_skb_alloc(nSubframe_Length + 12); + if (sub_skb) + { + skb_reserve(sub_skb, 12); + data_ptr = (u8 *)skb_put(sub_skb, nSubframe_Length); + memcpy(data_ptr, (pdata + ETH_HLEN), nSubframe_Length); + } + else + { + sub_skb = rtw_skb_clone(prframe->u.hdr.pkt); + if (sub_skb) + { + sub_skb->data = pdata + ETH_HLEN; + sub_skb->len = nSubframe_Length; + skb_set_tail_pointer(sub_skb, nSubframe_Length); + } + else + { + DBG_871X("%s(): rtw_skb_clone() Fail!!!\n", __func__); + return NULL; + } + } + + eth_type = RTW_GET_BE16(&sub_skb->data[6]); + + if (sub_skb->len >= 8 && + ((!memcmp(sub_skb->data, rtw_rfc1042_header, SNAP_SIZE) && + eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || + !memcmp(sub_skb->data, rtw_bridge_tunnel_header, SNAP_SIZE))) { + /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */ + skb_pull(sub_skb, SNAP_SIZE); + memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN); + memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN); + } else { + __be16 len; + /* Leave Ethernet header part of hdr and full payload */ + len = htons(sub_skb->len); + memcpy(skb_push(sub_skb, 2), &len, 2); + memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN); + memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN); + } + + return sub_skb; +} + +void rtw_os_recv_indicate_pkt(struct adapter *padapter, _pkt *pkt, struct rx_pkt_attrib *pattrib) +{ + struct mlme_priv*pmlmepriv = &padapter->mlmepriv; + int ret; + + /* Indicat the packets to upper layer */ + if (pkt) { + if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) + { + _pkt *pskb2 = NULL; + struct sta_info *psta = NULL; + struct sta_priv *pstapriv = &padapter->stapriv; + int bmcast = IS_MCAST(pattrib->dst); + + /* DBG_871X("bmcast =%d\n", bmcast); */ + + if (memcmp(pattrib->dst, myid(&padapter->eeprompriv), ETH_ALEN)) + { + /* DBG_871X("not ap psta =%p, addr =%pM\n", psta, pattrib->dst); */ + + if (bmcast) + { + psta = rtw_get_bcmc_stainfo(padapter); + pskb2 = rtw_skb_clone(pkt); + } else { + psta = rtw_get_stainfo(pstapriv, pattrib->dst); + } + + if (psta) + { + struct net_device *pnetdev = (struct net_device*)padapter->pnetdev; + + /* DBG_871X("directly forwarding to the rtw_xmit_entry\n"); */ + + /* skb->ip_summed = CHECKSUM_NONE; */ + pkt->dev = pnetdev; + skb_set_queue_mapping(pkt, rtw_recv_select_queue(pkt)); + + _rtw_xmit_entry(pkt, pnetdev); + + if (bmcast && (pskb2 != NULL)) { + pkt = pskb2; + DBG_COUNTER(padapter->rx_logs.os_indicate_ap_mcast); + } else { + DBG_COUNTER(padapter->rx_logs.os_indicate_ap_forward); + return; + } + } + } + else/* to APself */ + { + /* DBG_871X("to APSelf\n"); */ + DBG_COUNTER(padapter->rx_logs.os_indicate_ap_self); + } + } + + pkt->protocol = eth_type_trans(pkt, padapter->pnetdev); + pkt->dev = padapter->pnetdev; + +#ifdef CONFIG_TCP_CSUM_OFFLOAD_RX + if ((pattrib->tcpchk_valid == 1) && (pattrib->tcp_chkrpt == 1)) { + pkt->ip_summed = CHECKSUM_UNNECESSARY; + } else { + pkt->ip_summed = CHECKSUM_NONE; + } +#else /* !CONFIG_TCP_CSUM_OFFLOAD_RX */ + pkt->ip_summed = CHECKSUM_NONE; +#endif /* CONFIG_TCP_CSUM_OFFLOAD_RX */ + + ret = rtw_netif_rx(padapter->pnetdev, pkt); + if (ret == NET_RX_SUCCESS) + DBG_COUNTER(padapter->rx_logs.os_netif_ok); + else + DBG_COUNTER(padapter->rx_logs.os_netif_err); + } +} + +void rtw_handle_tkip_mic_err(struct adapter *padapter, u8 bgroup) +{ + enum nl80211_key_type key_type = 0; + union iwreq_data wrqu; + struct iw_michaelmicfailure ev; + struct mlme_priv* pmlmepriv = &padapter->mlmepriv; + struct security_priv *psecuritypriv = &padapter->securitypriv; + unsigned long cur_time = 0; + + if (psecuritypriv->last_mic_err_time == 0) + { + psecuritypriv->last_mic_err_time = jiffies; + } + else + { + cur_time = jiffies; + + if (cur_time - psecuritypriv->last_mic_err_time < 60*HZ) + { + psecuritypriv->btkip_countermeasure = true; + psecuritypriv->last_mic_err_time = 0; + psecuritypriv->btkip_countermeasure_time = cur_time; + } + else + { + psecuritypriv->last_mic_err_time = jiffies; + } + } + + if (bgroup) + { + key_type |= NL80211_KEYTYPE_GROUP; + } + else + { + key_type |= NL80211_KEYTYPE_PAIRWISE; + } + + cfg80211_michael_mic_failure(padapter->pnetdev, (u8 *)&pmlmepriv->assoc_bssid[ 0 ], key_type, -1, + NULL, GFP_ATOMIC); + + memset(&ev, 0x00, sizeof(ev)); + if (bgroup) + { + ev.flags |= IW_MICFAILURE_GROUP; + } + else + { + ev.flags |= IW_MICFAILURE_PAIRWISE; + } + + ev.src_addr.sa_family = ARPHRD_ETHER; + memcpy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN); + + memset(&wrqu, 0x00, sizeof(wrqu)); + wrqu.data.length = sizeof(ev); +} + +#ifdef CONFIG_AUTO_AP_MODE +static void rtw_os_ksocket_send(struct adapter *padapter, union recv_frame *precv_frame) +{ + _pkt *skb = precv_frame->u.hdr.pkt; + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + struct sta_info *psta = precv_frame->u.hdr.psta; + + DBG_871X("eth rx: got eth_type = 0x%x\n", pattrib->eth_type); + + if (psta && psta->isrc && psta->pid>0) + { + u16 rx_pid; + + rx_pid = *(u16*)(skb->data+ETH_HLEN); + + DBG_871X("eth rx(pid = 0x%x): sta("MAC_FMT") pid = 0x%x\n", + rx_pid, MAC_ARG(psta->hwaddr), psta->pid); + + if (rx_pid == psta->pid) + { + int i; + u16 len = *(u16*)(skb->data+ETH_HLEN+2); + /* u16 ctrl_type = *(u16*)(skb->data+ETH_HLEN+4); */ + + /* DBG_871X("eth, RC: len = 0x%x, ctrl_type = 0x%x\n", len, ctrl_type); */ + DBG_871X("eth, RC: len = 0x%x\n", len); + + for (i = 0;i<len;i++) + DBG_871X("0x%x\n", *(skb->data+ETH_HLEN+4+i)); + /* DBG_871X("0x%x\n", *(skb->data+ETH_HLEN+6+i)); */ + + DBG_871X("eth, RC-end\n"); + } + + } + +} +#endif /* CONFIG_AUTO_AP_MODE */ + +int rtw_recv_indicatepkt(struct adapter *padapter, union recv_frame *precv_frame) +{ + struct recv_priv *precvpriv; + struct __queue *pfree_recv_queue; + _pkt *skb; + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + + DBG_COUNTER(padapter->rx_logs.os_indicate); + + precvpriv = &(padapter->recvpriv); + pfree_recv_queue = &(precvpriv->free_recv_queue); + + skb = precv_frame->u.hdr.pkt; + if (skb == NULL) + { + RT_TRACE(_module_recv_osdep_c_, _drv_err_, ("rtw_recv_indicatepkt():skb == NULL something wrong!!!!\n")); + goto _recv_indicatepkt_drop; + } + + RT_TRACE(_module_recv_osdep_c_, _drv_info_, ("rtw_recv_indicatepkt():skb != NULL !!!\n")); + RT_TRACE(_module_recv_osdep_c_, _drv_info_, ("rtw_recv_indicatepkt():precv_frame->u.hdr.rx_head =%p precv_frame->hdr.rx_data =%p\n", precv_frame->u.hdr.rx_head, precv_frame->u.hdr.rx_data)); + RT_TRACE(_module_recv_osdep_c_, _drv_info_, ("precv_frame->hdr.rx_tail =%p precv_frame->u.hdr.rx_end =%p precv_frame->hdr.len =%d\n", precv_frame->u.hdr.rx_tail, precv_frame->u.hdr.rx_end, precv_frame->u.hdr.len)); + + skb->data = precv_frame->u.hdr.rx_data; + + skb_set_tail_pointer(skb, precv_frame->u.hdr.len); + + skb->len = precv_frame->u.hdr.len; + + RT_TRACE(_module_recv_osdep_c_, _drv_info_, ("\n skb->head =%p skb->data =%p skb->tail =%p skb->end =%p skb->len =%d\n", skb->head, skb->data, skb_tail_pointer(skb), skb_end_pointer(skb), skb->len)); + +#ifdef CONFIG_AUTO_AP_MODE + if (0x8899 == pattrib->eth_type) + { + rtw_os_ksocket_send(padapter, precv_frame); + + /* goto _recv_indicatepkt_drop; */ + } +#endif /* CONFIG_AUTO_AP_MODE */ + + rtw_os_recv_indicate_pkt(padapter, skb, pattrib); + + precv_frame->u.hdr.pkt = NULL; /* pointers to NULL before rtw_free_recvframe() */ + + rtw_free_recvframe(precv_frame, pfree_recv_queue); + + RT_TRACE(_module_recv_osdep_c_, _drv_info_, ("\n rtw_recv_indicatepkt :after rtw_os_recv_indicate_pkt!!!!\n")); + + return _SUCCESS; + +_recv_indicatepkt_drop: + + /* enqueue back to free_recv_queue */ + rtw_free_recvframe(precv_frame, pfree_recv_queue); + + DBG_COUNTER(padapter->rx_logs.os_indicate_err); + return _FAIL; +} + +void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl) +{ + struct adapter *padapter = preorder_ctrl->padapter; + + _init_timer(&(preorder_ctrl->reordering_ctrl_timer), padapter->pnetdev, rtw_reordering_ctrl_timeout_handler, preorder_ctrl); + +} |
