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kernel / pub / scm / linux / kernel / git / jes / linux / d504fa11e263bd434d687c5a5e113b46c2e809c6 / . / drivers / staging / rtl8723au / core / rtw_recv.c
blob: 713a377ce28f976e89cc857690c5b30079553198 [file] [log] [blame]
/******************************************************************************
*
* Copyright(c) 2007 - 2012 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 _RTW_RECV_C_
#include <osdep_service.h>
#include <drv_types.h>
#include <recv_osdep.h>
#include <mlme_osdep.h>
#include <linux/ip.h>
#include <linux/if_ether.h>
#include <usb_ops.h>
#include <linux/ieee80211.h>
#include <wifi.h>
void rtw_signal_stat_timer_hdl23a(unsigned long data);
void _rtw_init_sta_recv_priv23a(struct sta_recv_priv *psta_recvpriv)
{
spin_lock_init(&psta_recvpriv->lock);
/* for (i = 0; i<MAX_RX_NUMBLKS; i++) */
/* _rtw_init_queue23a(&psta_recvpriv->blk_strms[i]); */
_rtw_init_queue23a(&psta_recvpriv->defrag_q);
}
int _rtw_init_recv_priv23a(struct recv_priv *precvpriv,
struct rtw_adapter *padapter)
{
struct recv_frame *precvframe;
int i;
int res = _SUCCESS;
/* We don't need to memset padapter->XXX to zero, because
adapter is allocated by rtw_zvmalloc(). */
/* memset((unsigned char *)precvpriv, 0, sizeof (struct recv_priv)); */
spin_lock_init(&precvpriv->lock);
_rtw_init_queue23a(&precvpriv->free_recv_queue);
_rtw_init_queue23a(&precvpriv->recv_pending_queue);
_rtw_init_queue23a(&precvpriv->uc_swdec_pending_queue);
precvpriv->adapter = padapter;
precvpriv->free_recvframe_cnt = NR_RECVFRAME;
precvpriv->pallocated_frame_buf =
rtw_zvmalloc(NR_RECVFRAME * sizeof(struct recv_frame));
if (precvpriv->pallocated_frame_buf == NULL) {
res = _FAIL;
goto exit;
}
precvframe = precvpriv->pallocated_frame_buf;
for (i = 0; i < NR_RECVFRAME ; i++) {
INIT_LIST_HEAD(&precvframe->list);
list_add_tail(&precvframe->list,
&precvpriv->free_recv_queue.queue);
res = rtw_os_recv_resource_alloc23a(padapter, precvframe);
precvframe->adapter = padapter;
precvframe++;
}
precvpriv->rx_pending_cnt = 1;
sema_init(&precvpriv->allrxreturnevt, 0);
res = rtw_hal_init23a_recv_priv(padapter);
setup_timer(&precvpriv->signal_stat_timer, rtw_signal_stat_timer_hdl23a,
(unsigned long)padapter);
precvpriv->signal_stat_sampling_interval = 1000; /* ms */
rtw_set_signal_stat_timer(precvpriv);
exit:
return res;
}
void _rtw_free_recv_priv23a (struct recv_priv *precvpriv)
{
struct rtw_adapter *padapter = precvpriv->adapter;
rtw_free_uc_swdec_pending_queue23a(padapter);
if (precvpriv->pallocated_frame_buf) {
rtw_vmfree(precvpriv->pallocated_frame_buf,
NR_RECVFRAME * sizeof(struct recv_frame));
}
rtw_hal_free_recv_priv23a(padapter);
}
struct recv_frame *rtw_alloc_recvframe23a(struct rtw_queue *pfree_recv_queue)
{
struct recv_frame *pframe;
struct list_head *plist, *phead;
struct rtw_adapter *padapter;
struct recv_priv *precvpriv;
spin_lock_bh(&pfree_recv_queue->lock);
if (_rtw_queue_empty23a(pfree_recv_queue) == true)
pframe = NULL;
else {
phead = get_list_head(pfree_recv_queue);
plist = phead->next;
pframe = container_of(plist, struct recv_frame, list);
list_del_init(&pframe->list);
padapter = pframe->adapter;
if (padapter) {
precvpriv = &padapter->recvpriv;
if (pfree_recv_queue == &precvpriv->free_recv_queue)
precvpriv->free_recvframe_cnt--;
}
}
spin_unlock_bh(&pfree_recv_queue->lock);
return pframe;
}
int rtw_free_recvframe23a(struct recv_frame *precvframe, struct rtw_queue *pfree_recv_queue)
{
struct rtw_adapter *padapter = precvframe->adapter;
struct recv_priv *precvpriv = &padapter->recvpriv;
if (precvframe->pkt) {
dev_kfree_skb_any(precvframe->pkt);/* free skb by driver */
precvframe->pkt = NULL;
}
spin_lock_bh(&pfree_recv_queue->lock);
list_del_init(&precvframe->list);
list_add_tail(&precvframe->list, get_list_head(pfree_recv_queue));
if (padapter) {
if (pfree_recv_queue == &precvpriv->free_recv_queue)
precvpriv->free_recvframe_cnt++;
}
spin_unlock_bh(&pfree_recv_queue->lock);
return _SUCCESS;
}
int rtw_enqueue_recvframe23a(struct recv_frame *precvframe, struct rtw_queue *queue)
{
struct rtw_adapter *padapter = precvframe->adapter;
struct recv_priv *precvpriv = &padapter->recvpriv;
spin_lock_bh(&queue->lock);
list_del_init(&precvframe->list);
list_add_tail(&precvframe->list, get_list_head(queue));
if (padapter) {
if (queue == &precvpriv->free_recv_queue)
precvpriv->free_recvframe_cnt++;
}
spin_unlock_bh(&queue->lock);
return _SUCCESS;
}
/*
caller : defrag ; recvframe_chk_defrag23a in recv_thread (passive)
pframequeue: defrag_queue : will be accessed in recv_thread (passive)
using spinlock to protect
*/
void rtw_free_recvframe23a_queue(struct rtw_queue *pframequeue, struct rtw_queue *pfree_recv_queue)
{
struct recv_frame *hdr;
struct list_head *plist, *phead, *ptmp;
spin_lock(&pframequeue->lock);
phead = get_list_head(pframequeue);
plist = phead->next;
list_for_each_safe(plist, ptmp, phead) {
hdr = container_of(plist, struct recv_frame, list);
rtw_free_recvframe23a(hdr, pfree_recv_queue);
}
spin_unlock(&pframequeue->lock);
}
u32 rtw_free_uc_swdec_pending_queue23a(struct rtw_adapter *adapter)
{
u32 cnt = 0;
struct recv_frame *pending_frame;
while ((pending_frame = rtw_alloc_recvframe23a(&adapter->recvpriv.uc_swdec_pending_queue))) {
rtw_free_recvframe23a(pending_frame,
&adapter->recvpriv.free_recv_queue);
DBG_8723A("%s: dequeue uc_swdec_pending_queue\n", __func__);
cnt++;
}
return cnt;
}
int rtw_enqueue_recvbuf23a_to_head(struct recv_buf *precvbuf, struct rtw_queue *queue)
{
spin_lock_bh(&queue->lock);
list_del_init(&precvbuf->list);
list_add(&precvbuf->list, get_list_head(queue));
spin_unlock_bh(&queue->lock);
return _SUCCESS;
}
int rtw_enqueue_recvbuf23a(struct recv_buf *precvbuf, struct rtw_queue *queue)
{
unsigned long irqL;
spin_lock_irqsave(&queue->lock, irqL);
list_del_init(&precvbuf->list);
list_add_tail(&precvbuf->list, get_list_head(queue));
spin_unlock_irqrestore(&queue->lock, irqL);
return _SUCCESS;
}
struct recv_buf *rtw_dequeue_recvbuf23a (struct rtw_queue *queue)
{
unsigned long irqL;
struct recv_buf *precvbuf;
struct list_head *plist, *phead;
spin_lock_irqsave(&queue->lock, irqL);
if (_rtw_queue_empty23a(queue) == true) {
precvbuf = NULL;
} else {
phead = get_list_head(queue);
plist = phead->next;
precvbuf = container_of(plist, struct recv_buf, list);
list_del_init(&precvbuf->list);
}
spin_unlock_irqrestore(&queue->lock, irqL);
return precvbuf;
}
int recvframe_chkmic(struct rtw_adapter *adapter,
struct recv_frame *precvframe);
int recvframe_chkmic(struct rtw_adapter *adapter,
struct recv_frame *precvframe) {
int i, res = _SUCCESS;
u32 datalen;
u8 miccode[8];
u8 bmic_err = false, brpt_micerror = true;
u8 *pframe, *payload,*pframemic;
u8 *mickey;
/* u8 *iv, rxdata_key_idx = 0; */
struct sta_info *stainfo;
struct rx_pkt_attrib *prxattrib = &precvframe->attrib;
struct security_priv *psecuritypriv = &adapter->securitypriv;
struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
stainfo = rtw_get_stainfo23a(&adapter->stapriv, &prxattrib->ta[0]);
if (prxattrib->encrypt == _TKIP_) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("\n recvframe_chkmic:prxattrib->encrypt == _TKIP_\n"));
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("\n recvframe_chkmic:da = 0x%02x:0x%02x:0x%02x:0x%02x:"
"0x%02x:0x%02x\n", prxattrib->ra[0],
prxattrib->ra[1], prxattrib->ra[2], prxattrib->ra[3],
prxattrib->ra[4], prxattrib->ra[5]));
/* calculate mic code */
if (stainfo != NULL) {
if (is_multicast_ether_addr(prxattrib->ra)) {
mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("\n recvframe_chkmic: bcmc key\n"));
if (psecuritypriv->binstallGrpkey == false) {
res = _FAIL;
RT_TRACE(_module_rtl871x_recv_c_,
_drv_err_,
("\n recvframe_chkmic:didn't "
"install group key!!!!!!\n"));
DBG_8723A("\n recvframe_chkmic:didn't "
"install group key!!!!!!\n");
goto exit;
}
} else {
mickey = &stainfo->dot11tkiprxmickey.skey[0];
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("\n recvframe_chkmic: unicast "
"key\n"));
}
/* icv_len included the mic code */
datalen = precvframe->pkt->len-prxattrib->
hdrlen-prxattrib->iv_len-prxattrib->icv_len - 8;
pframe = precvframe->pkt->data;
payload = pframe + prxattrib->hdrlen +
prxattrib->iv_len;
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("\n prxattrib->iv_len =%d prxattrib->icv_len ="
"%d\n", prxattrib->iv_len,
prxattrib->icv_len));
/* care the length of the data */
rtw_seccalctkipmic23a(mickey, pframe, payload,
datalen, &miccode[0],
(unsigned char)prxattrib->priority);
pframemic = payload + datalen;
bmic_err = false;
for (i = 0; i < 8; i++) {
if (miccode[i] != *(pframemic + i)) {
RT_TRACE(_module_rtl871x_recv_c_,
_drv_err_,
("recvframe_chkmic:miccode"
"[%d](%02x) != *(pframemic+"
"%d)(%02x) ", i, miccode[i],
i, *(pframemic + i)));
bmic_err = true;
}
}
if (bmic_err == true) {
int i;
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("\n *(pframemic-8)-*(pframemic-1) ="
"0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:"
"0x%02x:0x%02x:0x%02x\n",
*(pframemic - 8), *(pframemic - 7),
*(pframemic - 6), *(pframemic - 5),
*(pframemic - 4), *(pframemic - 3),
*(pframemic - 2), *(pframemic - 1)));
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("\n *(pframemic-16)-*(pframemic-9) ="
"0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:"
"0x%02x:0x%02x:0x%02x\n",
*(pframemic - 16), *(pframemic - 15),
*(pframemic - 14), *(pframemic - 13),
*(pframemic - 12), *(pframemic - 11),
*(pframemic - 10), *(pframemic - 9)));
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("\n ====== demp packet (len =%d) ======"
"\n", precvframe->pkt->len));
for (i = 0; i < precvframe->pkt->len; i = i + 8) {
RT_TRACE(_module_rtl871x_recv_c_,
_drv_err_, ("0x%02x:0x%02x:0x"
"%02x:0x%02x:0x%0"
"2x:0x%02x:0x%02x"
":0x%02x",
*(precvframe->pkt->data+i),*(precvframe->pkt->data+i+1),
*(precvframe->pkt->data+i+2),*(precvframe->pkt->data+i+3),
*(precvframe->pkt->data+i+4),*(precvframe->pkt->data+i+5),
*(precvframe->pkt->data+i+6),*(precvframe->pkt->data+i+7)));
}
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("\n ====== demp packet end [len =%d]"
"======\n", precvframe->pkt->len));
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("\n hrdlen =%d,\n",
prxattrib->hdrlen));
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("ra = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%."
"2x 0x%.2x psecuritypriv->"
"binstallGrpkey =%d ",
prxattrib->ra[0], prxattrib->ra[1],
prxattrib->ra[2], prxattrib->ra[3],
prxattrib->ra[4], prxattrib->ra[5],
psecuritypriv->binstallGrpkey));
/* double check key_index for some timing
issue, cannot compare with
psecuritypriv->dot118021XGrpKeyid also
cause timing issue */
if ((is_multicast_ether_addr(prxattrib->ra)) &&
(prxattrib->key_index !=
pmlmeinfo->key_index))
brpt_micerror = false;
if ((prxattrib->bdecrypted == true) &&
(brpt_micerror == true)) {
rtw_handle_tkip_mic_err23a(adapter, (u8)is_multicast_ether_addr(prxattrib->ra));
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted =%d ", prxattrib->bdecrypted));
DBG_8723A(" mic error :prxattrib->"
"bdecrypted =%d\n",
prxattrib->bdecrypted);
} else {
RT_TRACE(_module_rtl871x_recv_c_,
_drv_err_,
(" mic error :prxattrib->"
"bdecrypted =%d ",
prxattrib->bdecrypted));
DBG_8723A(" mic error :prxattrib->"
"bdecrypted =%d\n",
prxattrib->bdecrypted);
}
res = _FAIL;
} else {
/* mic checked ok */
if ((psecuritypriv->bcheck_grpkey == false) &&
(is_multicast_ether_addr(prxattrib->ra))) {
psecuritypriv->bcheck_grpkey = true;
RT_TRACE(_module_rtl871x_recv_c_,
_drv_err_,
("psecuritypriv->bcheck_grp"
"key = true"));
}
}
} else {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("recvframe_chkmic: rtw_get_stainfo23a =="
"NULL!!!\n"));
}
skb_trim(precvframe->pkt, precvframe->pkt->len - 8);
}
exit:
return res;
}
/* decrypt and set the ivlen, icvlen of the recv_frame */
struct recv_frame *decryptor(struct rtw_adapter *padapter,
struct recv_frame *precv_frame);
struct recv_frame *decryptor(struct rtw_adapter *padapter,
struct recv_frame *precv_frame)
{
struct rx_pkt_attrib *prxattrib = &precv_frame->attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct recv_frame *return_packet = precv_frame;
u32 res = _SUCCESS;
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("prxstat->decrypted =%x prxattrib->encrypt = 0x%03x\n",
prxattrib->bdecrypted, prxattrib->encrypt));
if (prxattrib->encrypt > 0) {
u8 *iv = precv_frame->pkt->data + prxattrib->hdrlen;
prxattrib->key_index = (((iv[3]) >> 6) & 0x3);
if (prxattrib->key_index > WEP_KEYS) {
DBG_8723A("prxattrib->key_index(%d) > WEP_KEYS\n",
prxattrib->key_index);
switch (prxattrib->encrypt) {
case _WEP40_:
case _WEP104_:
prxattrib->key_index =
psecuritypriv->dot11PrivacyKeyIndex;
break;
case _TKIP_:
case _AES_:
default:
prxattrib->key_index =
psecuritypriv->dot118021XGrpKeyid;
break;
}
}
}
if ((prxattrib->encrypt > 0) && ((prxattrib->bdecrypted == 0))) {
psecuritypriv->hw_decrypted = false;
switch (prxattrib->encrypt) {
case _WEP40_:
case _WEP104_:
rtw_wep_decrypt23a(padapter, precv_frame);
break;
case _TKIP_:
res = rtw_tkip_decrypt23a(padapter, precv_frame);
break;
case _AES_:
res = rtw_aes_decrypt23a(padapter, precv_frame);
break;
default:
break;
}
} else if (prxattrib->bdecrypted == 1 && prxattrib->encrypt > 0 &&
(psecuritypriv->busetkipkey == 1 ||
prxattrib->encrypt != _TKIP_)) {
psecuritypriv->hw_decrypted = true;
}
if (res == _FAIL) {
rtw_free_recvframe23a(return_packet,
&padapter->recvpriv.free_recv_queue);
return_packet = NULL;
}
return return_packet;
}
/* set the security information in the recv_frame */
static struct recv_frame *portctrl(struct rtw_adapter *adapter,
struct recv_frame *precv_frame)
{
u8 *psta_addr, *ptr;
uint auth_alg;
struct recv_frame *pfhdr;
struct sta_info *psta;
struct sta_priv *pstapriv ;
struct recv_frame *prtnframe;
u16 ether_type;
u16 eapol_type = ETH_P_PAE;/* for Funia BD's WPA issue */
struct rx_pkt_attrib *pattrib;
pstapriv = &adapter->stapriv;
auth_alg = adapter->securitypriv.dot11AuthAlgrthm;
pfhdr = precv_frame;
pattrib = &pfhdr->attrib;
psta_addr = pattrib->ta;
psta = rtw_get_stainfo23a(pstapriv, psta_addr);
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("########portctrl:adapter->securitypriv.dot11AuthAlgrthm ="
"%d\n", adapter->securitypriv.dot11AuthAlgrthm));
if (auth_alg == dot11AuthAlgrthm_8021X) {
/* get ether_type */
ptr = pfhdr->pkt->data + pfhdr->attrib.hdrlen;
ether_type = (ptr[6] << 8) | ptr[7];
if ((psta != NULL) && (psta->ieee8021x_blocked)) {
/* blocked */
/* only accept EAPOL frame */
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("########portctrl:psta->ieee8021x_blocked =="
"1\n"));
if (ether_type == eapol_type) {
prtnframe = precv_frame;
} else {
/* free this frame */
rtw_free_recvframe23a(precv_frame,
&adapter->recvpriv.free_recv_queue);
prtnframe = NULL;
}
} else {
/* allowed */
/* check decryption status, and decrypt the frame if needed */
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("########portctrl:psta->ieee8021x_blocked =="
"0\n"));
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("portctrl:precv_frame->hdr.attrib.privacy ="
"%x\n", precv_frame->attrib.privacy));
if (pattrib->bdecrypted == 0) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("portctrl:prxstat->decrypted =%x\n",
pattrib->bdecrypted));
}
prtnframe = precv_frame;
/* check is the EAPOL frame or not (Rekey) */
if (ether_type == eapol_type) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("########portctrl:ether_type == "
"0x888e\n"));
/* check Rekey */
prtnframe = precv_frame;
} else {
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("########portctrl:ether_type = 0x%04x"
"\n", ether_type));
}
}
} else {
prtnframe = precv_frame;
}
return prtnframe;
}
int recv_decache(struct recv_frame *precv_frame, u8 bretry,
struct stainfo_rxcache *prxcache);
int recv_decache(struct recv_frame *precv_frame, u8 bretry,
struct stainfo_rxcache *prxcache)
{
int tid = precv_frame->attrib.priority;
u16 seq_ctrl = ((precv_frame->attrib.seq_num & 0xffff) << 4) |
(precv_frame->attrib.frag_num & 0xf);
if (tid > 15) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("recv_decache, (tid>15)! seq_ctrl = 0x%x, tid = 0x%x\n",
seq_ctrl, tid));
return _FAIL;
}
if (1) { /* if (bretry) */
if (seq_ctrl == prxcache->tid_rxseq[tid]) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("recv_decache, seq_ctrl = 0x%x, tid = 0x%x, "
"tid_rxseq = 0x%x\n",
seq_ctrl, tid, prxcache->tid_rxseq[tid]));
return _FAIL;
}
}
prxcache->tid_rxseq[tid] = seq_ctrl;
return _SUCCESS;
}
void process23a_pwrbit_data(struct rtw_adapter *padapter,
struct recv_frame *precv_frame);
void process23a_pwrbit_data(struct rtw_adapter *padapter,
struct recv_frame *precv_frame)
{
#ifdef CONFIG_8723AU_AP_MODE
unsigned char pwrbit;
struct sk_buff *skb = precv_frame->pkt;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
struct sta_priv *pstapriv = &padapter->stapriv;
struct sta_info *psta = NULL;
psta = rtw_get_stainfo23a(pstapriv, pattrib->src);
if (psta) {
pwrbit = ieee80211_has_pm(hdr->frame_control);
if (pwrbit) {
if (!(psta->state & WIFI_SLEEP_STATE))
stop_sta_xmit23a(padapter, psta);
} else {
if (psta->state & WIFI_SLEEP_STATE)
wakeup_sta_to_xmit23a(padapter, psta);
}
}
#endif
}
void process_wmmps_data(struct rtw_adapter *padapter,
struct recv_frame *precv_frame);
void process_wmmps_data(struct rtw_adapter *padapter,
struct recv_frame *precv_frame)
{
#ifdef CONFIG_8723AU_AP_MODE
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
struct sta_priv *pstapriv = &padapter->stapriv;
struct sta_info *psta = NULL;
psta = rtw_get_stainfo23a(pstapriv, pattrib->src);
if (!psta)
return;
if (!psta->qos_option)
return;
if (!(psta->qos_info & 0xf))
return;
if (psta->state & WIFI_SLEEP_STATE) {
u8 wmmps_ac = 0;
switch (pattrib->priority) {
case 1:
case 2:
wmmps_ac = psta->uapsd_bk & BIT(1);
break;
case 4:
case 5:
wmmps_ac = psta->uapsd_vi & BIT(1);
break;
case 6:
case 7:
wmmps_ac = psta->uapsd_vo & BIT(1);
break;
case 0:
case 3:
default:
wmmps_ac = psta->uapsd_be & BIT(1);
break;
}
if (wmmps_ac) {
if (psta->sleepq_ac_len > 0) {
/* process received triggered frame */
xmit_delivery_enabled_frames23a(padapter, psta);
} else {
/* issue one qos null frame with More data bit = 0 and the EOSP bit set (= 1) */
issue_qos_nulldata23a(padapter, psta->hwaddr,
(u16)pattrib->priority,
0, 0);
}
}
}
#endif
}
static void count_rx_stats(struct rtw_adapter *padapter,
struct recv_frame *prframe, struct sta_info *sta)
{
int sz;
struct sta_info *psta = NULL;
struct stainfo_stats *pstats = NULL;
struct rx_pkt_attrib *pattrib = & prframe->attrib;
struct recv_priv *precvpriv = &padapter->recvpriv;
sz = prframe->pkt->len;
precvpriv->rx_bytes += sz;
padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++;
if ((!is_broadcast_ether_addr(pattrib->dst)) &&
(!is_multicast_ether_addr(pattrib->dst)))
padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++;
if (sta)
psta = sta;
else
psta = prframe->psta;
if (psta) {
pstats = &psta->sta_stats;
pstats->rx_data_pkts++;
pstats->rx_bytes += sz;
}
}
static int sta2sta_data_frame(struct rtw_adapter *adapter,
struct recv_frame *precv_frame,
struct sta_info**psta)
{
struct sk_buff *skb = precv_frame->pkt;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
int ret = _SUCCESS;
struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
struct sta_priv *pstapriv = &adapter->stapriv;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
u8 *mybssid = get_bssid(pmlmepriv);
u8 *myhwaddr = myid(&adapter->eeprompriv);
u8 *sta_addr = NULL;
int bmcast = is_multicast_ether_addr(pattrib->dst);
if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) ||
(check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) {
/* filter packets that SA is myself or multicast or broadcast */
if (ether_addr_equal(myhwaddr, pattrib->src)) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
(" SA == myself\n"));
ret = _FAIL;
goto exit;
}
if (!ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) {
ret = _FAIL;
goto exit;
}
if (ether_addr_equal(pattrib->bssid, "\x0\x0\x0\x0\x0\x0") ||
ether_addr_equal(mybssid, "\x0\x0\x0\x0\x0\x0") ||
!ether_addr_equal(pattrib->bssid, mybssid)) {
ret = _FAIL;
goto exit;
}
sta_addr = pattrib->src;
} else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
/* For Station mode, sa and bssid should always be BSSID,
and DA is my mac-address */
if (!ether_addr_equal(pattrib->bssid, pattrib->src)) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("bssid != TA under STATION_MODE; drop "
"pkt\n"));
ret = _FAIL;
goto exit;
}
sta_addr = pattrib->bssid;
} else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
if (bmcast) {
/* For AP mode, if DA == MCAST, then BSSID should be also MCAST */
if (!is_multicast_ether_addr(pattrib->bssid)) {
ret = _FAIL;
goto exit;
}
} else { /* not mc-frame */
/* For AP mode, if DA is non-MCAST, then it must
be BSSID, and bssid == BSSID */
if (!ether_addr_equal(pattrib->bssid, pattrib->dst)) {
ret = _FAIL;
goto exit;
}
sta_addr = pattrib->src;
}
} else if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) {
ether_addr_copy(pattrib->dst, hdr->addr1);
ether_addr_copy(pattrib->src, hdr->addr2);
ether_addr_copy(pattrib->bssid, hdr->addr3);
ether_addr_copy(pattrib->ra, pattrib->dst);
ether_addr_copy(pattrib->ta, pattrib->src);
sta_addr = mybssid;
} else {
ret = _FAIL;
}
if (bmcast)
*psta = rtw_get_bcmc_stainfo23a(adapter);
else
*psta = rtw_get_stainfo23a(pstapriv, sta_addr); /* get ap_info */
if (*psta == NULL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under sta2sta_data_frame ; drop pkt\n"));
ret = _FAIL;
goto exit;
}
exit:
return ret;
}
int ap2sta_data_frame(struct rtw_adapter *adapter,
struct recv_frame *precv_frame,
struct sta_info **psta);
int ap2sta_data_frame(struct rtw_adapter *adapter,
struct recv_frame *precv_frame,
struct sta_info **psta)
{
struct sk_buff *skb = precv_frame->pkt;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
int ret = _SUCCESS;
struct sta_priv *pstapriv = &adapter->stapriv;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
u8 *mybssid = get_bssid(pmlmepriv);
u8 *myhwaddr = myid(&adapter->eeprompriv);
int bmcast = is_multicast_ether_addr(pattrib->dst);
if ((check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) &&
(check_fwstate(pmlmepriv, _FW_LINKED) == true ||
check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true)) {
/* filter packets that SA is myself or multicast or broadcast */
if (ether_addr_equal(myhwaddr, pattrib->src)) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
(" SA == myself\n"));
ret = _FAIL;
goto exit;
}
/* da should be for me */
if (!ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
(" ap2sta_data_frame: compare DA fail; DA ="
MAC_FMT"\n", MAC_ARG(pattrib->dst)));
ret = _FAIL;
goto exit;
}
/* check BSSID */
if (ether_addr_equal(pattrib->bssid, "\x0\x0\x0\x0\x0\x0") ||
ether_addr_equal(mybssid, "\x0\x0\x0\x0\x0\x0") ||
!ether_addr_equal(pattrib->bssid, mybssid)) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
(" ap2sta_data_frame: compare BSSID fail ; "
"BSSID ="MAC_FMT"\n", MAC_ARG(pattrib->bssid)));
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("mybssid ="MAC_FMT"\n", MAC_ARG(mybssid)));
if (!bmcast) {
DBG_8723A("issue_deauth23a to the nonassociated "
"ap =" MAC_FMT " for the reason(7)\n",
MAC_ARG(pattrib->bssid));
issue_deauth23a(adapter, pattrib->bssid,
WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
}
ret = _FAIL;
goto exit;
}
if (bmcast)
*psta = rtw_get_bcmc_stainfo23a(adapter);
else
/* get ap_info */
*psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid);
if (*psta == NULL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("ap2sta: can't get psta under STATION_MODE ;"
" drop pkt\n"));
ret = _FAIL;
goto exit;
}
if (ieee80211_is_nullfunc(hdr->frame_control)) {
/* No data, will not indicate to upper layer,
temporily count it here */
count_rx_stats(adapter, precv_frame, *psta);
ret = RTW_RX_HANDLED;
goto exit;
}
} else if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) &&
(check_fwstate(pmlmepriv, _FW_LINKED) == true)) {
ether_addr_copy(pattrib->dst, hdr->addr1);
ether_addr_copy(pattrib->src, hdr->addr2);
ether_addr_copy(pattrib->bssid, hdr->addr3);
ether_addr_copy(pattrib->ra, pattrib->dst);
ether_addr_copy(pattrib->ta, pattrib->src);
/* */
ether_addr_copy(pattrib->bssid, mybssid);
/* get sta_info */
*psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid);
if (*psta == NULL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("can't get psta under MP_MODE ; drop pkt\n"));
ret = _FAIL;
goto exit;
}
} else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
/* Special case */
ret = RTW_RX_HANDLED;
goto exit;
} else {
if (ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) {
*psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid);
if (*psta == NULL) {
DBG_8723A("issue_deauth23a to the ap =" MAC_FMT
" for the reason(7)\n",
MAC_ARG(pattrib->bssid));
issue_deauth23a(adapter, pattrib->bssid,
WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
}
}
ret = _FAIL;
}
exit:
return ret;
}
int sta2ap_data_frame(struct rtw_adapter *adapter,
struct recv_frame *precv_frame,
struct sta_info **psta);
int sta2ap_data_frame(struct rtw_adapter *adapter,
struct recv_frame *precv_frame,
struct sta_info **psta)
{
struct sk_buff *skb = precv_frame->pkt;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
struct sta_priv *pstapriv = &adapter->stapriv;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
unsigned char *mybssid = get_bssid(pmlmepriv);
int ret = _SUCCESS;
if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
/* For AP mode, RA = BSSID, TX = STA(SRC_ADDR), A3 = DST_ADDR */
if (!ether_addr_equal(pattrib->bssid, mybssid)) {
ret = _FAIL;
goto exit;
}
*psta = rtw_get_stainfo23a(pstapriv, pattrib->src);
if (*psta == NULL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("can't get psta under AP_MODE; drop pkt\n"));
DBG_8723A("issue_deauth23a to sta =" MAC_FMT
" for the reason(7)\n",
MAC_ARG(pattrib->src));
issue_deauth23a(adapter, pattrib->src,
WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
ret = RTW_RX_HANDLED;
goto exit;
}
process23a_pwrbit_data(adapter, precv_frame);
/* We only get here if it's a data frame, so no need to
* confirm data frame type first */
if (ieee80211_is_data_qos(hdr->frame_control))
process_wmmps_data(adapter, precv_frame);
if (ieee80211_is_nullfunc(hdr->frame_control)) {
/* No data, will not indicate to upper layer,
temporily count it here */
count_rx_stats(adapter, precv_frame, *psta);
ret = RTW_RX_HANDLED;
goto exit;
}
} else {
u8 *myhwaddr = myid(&adapter->eeprompriv);
if (!ether_addr_equal(pattrib->ra, myhwaddr)) {
ret = RTW_RX_HANDLED;
goto exit;
}
DBG_8723A("issue_deauth23a to sta =" MAC_FMT " for the reason(7)\n",
MAC_ARG(pattrib->src));
issue_deauth23a(adapter, pattrib->src,
WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
ret = RTW_RX_HANDLED;
goto exit;
}
exit:
return ret;
}
int validate_recv_ctrl_frame(struct rtw_adapter *padapter,
struct recv_frame *precv_frame);
int validate_recv_ctrl_frame(struct rtw_adapter *padapter,
struct recv_frame *precv_frame)
{
#ifdef CONFIG_8723AU_AP_MODE
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
struct sta_priv *pstapriv = &padapter->stapriv;
struct sk_buff *skb = precv_frame->pkt;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u8 *pframe = skb->data;
if (!ieee80211_is_ctl(hdr->frame_control))
return _FAIL;
/* receive the frames that ra(a1) is my address */
if (!ether_addr_equal(hdr->addr1, myid(&padapter->eeprompriv)))
return _FAIL;
/* only handle ps-poll */
if (ieee80211_is_pspoll(hdr->frame_control)) {
u16 aid;
u8 wmmps_ac = 0;
struct sta_info *psta = NULL;
aid = GetAid(pframe);
psta = rtw_get_stainfo23a(pstapriv, hdr->addr2);
if ((!psta) || (psta->aid != aid))
return _FAIL;
/* for rx pkt statistics */
psta->sta_stats.rx_ctrl_pkts++;
switch (pattrib->priority) {
case 1:
case 2:
wmmps_ac = psta->uapsd_bk & BIT(0);
break;
case 4:
case 5:
wmmps_ac = psta->uapsd_vi & BIT(0);
break;
case 6:
case 7:
wmmps_ac = psta->uapsd_vo & BIT(0);
break;
case 0:
case 3:
default:
wmmps_ac = psta->uapsd_be & BIT(0);
break;
}
if (wmmps_ac)
return _FAIL;
if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
DBG_8723A("%s alive check-rx ps-poll\n", __func__);
psta->expire_to = pstapriv->expire_to;
psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
}
if ((psta->state & WIFI_SLEEP_STATE) &&
(pstapriv->sta_dz_bitmap & CHKBIT(psta->aid))) {
struct list_head *xmitframe_plist, *xmitframe_phead;
struct xmit_frame *pxmitframe;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
spin_lock_bh(&pxmitpriv->lock);
xmitframe_phead = get_list_head(&psta->sleep_q);
xmitframe_plist = xmitframe_phead->next;
if (!list_empty(xmitframe_phead)) {
pxmitframe = container_of(xmitframe_plist,
struct xmit_frame,
list);
xmitframe_plist = xmitframe_plist->next;
list_del_init(&pxmitframe->list);
psta->sleepq_len--;
if (psta->sleepq_len>0)
pxmitframe->attrib.mdata = 1;
else
pxmitframe->attrib.mdata = 0;
pxmitframe->attrib.triggered = 1;
/* DBG_8723A("handling ps-poll, q_len =%d, tim =%x\n", psta->sleepq_len, pstapriv->tim_bitmap); */
rtw_hal_xmit23aframe_enqueue(padapter, pxmitframe);
if (psta->sleepq_len == 0) {
pstapriv->tim_bitmap &= ~CHKBIT(psta->aid);
/* DBG_8723A("after handling ps-poll, tim =%x\n", pstapriv->tim_bitmap); */
/* upate BCN for TIM IE */
/* update_BCNTIM(padapter); */
update_beacon23a(padapter, _TIM_IE_,
NULL, false);
}
/* spin_unlock_bh(&psta->sleep_q.lock); */
spin_unlock_bh(&pxmitpriv->lock);
} else {
/* spin_unlock_bh(&psta->sleep_q.lock); */
spin_unlock_bh(&pxmitpriv->lock);
/* DBG_8723A("no buffered packets to xmit\n"); */
if (pstapriv->tim_bitmap & CHKBIT(psta->aid)) {
if (psta->sleepq_len == 0) {
DBG_8723A("no buffered packets "
"to xmit\n");
/* issue nulldata with More data bit = 0 to indicate we have no buffered packets */
issue_nulldata23a(padapter,
psta->hwaddr,
0, 0, 0);
} else {
DBG_8723A("error!psta->sleepq"
"_len =%d\n",
psta->sleepq_len);
psta->sleepq_len = 0;
}
pstapriv->tim_bitmap &= ~CHKBIT(psta->aid);
/* upate BCN for TIM IE */
/* update_BCNTIM(padapter); */
update_beacon23a(padapter, _TIM_IE_,
NULL, false);
}
}
}
}
#endif
return _FAIL;
}
struct recv_frame* recvframe_chk_defrag23a(struct rtw_adapter *padapter,
struct recv_frame *precv_frame);
int validate_recv_mgnt_frame(struct rtw_adapter *padapter,
struct recv_frame *precv_frame);
int validate_recv_mgnt_frame(struct rtw_adapter *padapter,
struct recv_frame *precv_frame)
{
struct sta_info *psta;
struct sk_buff *skb;
struct ieee80211_hdr *hdr;
/* struct mlme_priv *pmlmepriv = &adapter->mlmepriv; */
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("+validate_recv_mgnt_frame\n"));
precv_frame = recvframe_chk_defrag23a(padapter, precv_frame);
if (precv_frame == NULL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("%s: fragment packet\n", __func__));
return _SUCCESS;
}
skb = precv_frame->pkt;
hdr = (struct ieee80211_hdr *) skb->data;
/* for rx pkt statistics */
psta = rtw_get_stainfo23a(&padapter->stapriv, hdr->addr2);
if (psta) {
psta->sta_stats.rx_mgnt_pkts++;
if (ieee80211_is_beacon(hdr->frame_control))
psta->sta_stats.rx_beacon_pkts++;
else if (ieee80211_is_probe_req(hdr->frame_control))
psta->sta_stats.rx_probereq_pkts++;
else if (ieee80211_is_probe_resp(hdr->frame_control)) {
if (ether_addr_equal(padapter->eeprompriv.mac_addr,
hdr->addr1))
psta->sta_stats.rx_probersp_pkts++;
else if (is_broadcast_ether_addr(hdr->addr1) ||
is_multicast_ether_addr(hdr->addr1))
psta->sta_stats.rx_probersp_bm_pkts++;
else
psta->sta_stats.rx_probersp_uo_pkts++;
}
}
mgt_dispatcher23a(padapter, precv_frame);
return _SUCCESS;
}
int validate_recv_data_frame(struct rtw_adapter *adapter,
struct recv_frame *precv_frame);
int validate_recv_data_frame(struct rtw_adapter *adapter,
struct recv_frame *precv_frame)
{
u8 bretry;
u8 *psa, *pda, *pbssid;
struct sta_info *psta = NULL;
u8 *ptr = precv_frame->pkt->data;
struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
struct security_priv *psecuritypriv = &adapter->securitypriv;
int ret = _SUCCESS;
struct sk_buff *skb = precv_frame->pkt;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
bretry = ieee80211_has_retry(hdr->frame_control);
pda = ieee80211_get_DA(hdr);
psa = ieee80211_get_SA(hdr);
pbssid = get_hdr_bssid(ptr);
if (pbssid == NULL) {
ret = _FAIL;
goto exit;
}
ether_addr_copy(pattrib->dst, pda);
ether_addr_copy(pattrib->src, psa);
ether_addr_copy(pattrib->bssid, pbssid);
switch (pattrib->to_fr_ds)
{
case 0:
ether_addr_copy(pattrib->ra, pda);
ether_addr_copy(pattrib->ta, psa);
ret = sta2sta_data_frame(adapter, precv_frame, &psta);
break;
case 1:
ether_addr_copy(pattrib->ra, pda);
ether_addr_copy(pattrib->ta, pbssid);
ret = ap2sta_data_frame(adapter, precv_frame, &psta);
break;
case 2:
ether_addr_copy(pattrib->ra, pbssid);
ether_addr_copy(pattrib->ta, psa);
ret = sta2ap_data_frame(adapter, precv_frame, &psta);
break;
case 3:
ether_addr_copy(pattrib->ra, hdr->addr1);
ether_addr_copy(pattrib->ta, hdr->addr2);
ret = _FAIL;
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" case 3\n"));
break;
default:
ret = _FAIL;
break;
}
if ((ret == _FAIL) || (ret == RTW_RX_HANDLED))
goto exit;
if (!psta) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
(" after to_fr_ds_chk; psta == NULL\n"));
ret = _FAIL;
goto exit;
}
/* psta->rssi = prxcmd->rssi; */
/* psta->signal_quality = prxcmd->sq; */
precv_frame->psta = psta;
pattrib->hdrlen = sizeof(struct ieee80211_hdr_3addr);
if (ieee80211_has_a4(hdr->frame_control))
pattrib->hdrlen += ETH_ALEN;
/* parsing QC field */
if (pattrib->qos == 1) {
__le16 *qptr = (__le16 *)ieee80211_get_qos_ctl(hdr);
u16 qos_ctrl = le16_to_cpu(*qptr);
pattrib->priority = qos_ctrl & IEEE80211_QOS_CTL_TID_MASK;
pattrib->ack_policy = (qos_ctrl >> 5) & 3;
pattrib->amsdu =
(qos_ctrl & IEEE80211_QOS_CTL_A_MSDU_PRESENT) >> 7;
pattrib->hdrlen += IEEE80211_QOS_CTL_LEN;
if (pattrib->priority != 0 && pattrib->priority != 3) {
adapter->recvpriv.bIsAnyNonBEPkts = true;
}
} else {
pattrib->priority = 0;
pattrib->ack_policy = 0;
pattrib->amsdu = 0;
}
if (pattrib->order) { /* HT-CTRL 11n */
pattrib->hdrlen += 4;
}
precv_frame->preorder_ctrl = &psta->recvreorder_ctrl[pattrib->priority];
/* decache, drop duplicate recv packets */
if (recv_decache(precv_frame, bretry, &psta->sta_recvpriv.rxcache) ==
_FAIL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("decache : drop pkt\n"));
ret = _FAIL;
goto exit;
}
if (pattrib->privacy) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("validate_recv_data_frame:pattrib->privacy =%x\n",
pattrib->privacy));
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("\n ^^^^^^^^^^^is_multicast_ether_addr"
"(pattrib->ra(0x%02x)) =%d^^^^^^^^^^^^^^^6\n",
pattrib->ra[0],
is_multicast_ether_addr(pattrib->ra)));
GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt,
is_multicast_ether_addr(pattrib->ra));
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("\n pattrib->encrypt =%d\n", pattrib->encrypt));
switch (pattrib->encrypt)
{
case _WEP40_:
case _WEP104_:
pattrib->iv_len = 4;
pattrib->icv_len = 4;
break;
case _TKIP_:
pattrib->iv_len = 8;
pattrib->icv_len = 4;
break;
case _AES_:
pattrib->iv_len = 8;
pattrib->icv_len = 8;
break;
case _SMS4_:
pattrib->iv_len = 18;
pattrib->icv_len = 16;
break;
default:
pattrib->iv_len = 0;
pattrib->icv_len = 0;
break;
}
} else {
pattrib->encrypt = 0;
pattrib->iv_len = 0;
pattrib->icv_len = 0;
}
exit:
return ret;
}
static void dump_rx_pkt(struct sk_buff *skb, u16 type, int level)
{
int i;
u8 *ptr;
if ((level == 1) ||
((level == 2) && (type == IEEE80211_FTYPE_MGMT)) ||
((level == 3) && (type == IEEE80211_FTYPE_DATA))) {
ptr = skb->data;
DBG_8723A("#############################\n");
for (i = 0; i < 64; i = i + 8)
DBG_8723A("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n",
*(ptr + i), *(ptr + i + 1), *(ptr + i + 2),
*(ptr + i + 3), *(ptr + i + 4),
*(ptr + i + 5), *(ptr + i + 6),
*(ptr + i + 7));
DBG_8723A("#############################\n");
}
}
static int validate_recv_frame(struct rtw_adapter *adapter,
struct recv_frame *precv_frame)
{
/* shall check frame subtype, to / from ds, da, bssid */
/* then call check if rx seq/frag. duplicated. */
u8 type;
u8 subtype;
int retval = _SUCCESS;
struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
struct sk_buff *skb = precv_frame->pkt;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u8 ver;
u8 bDumpRxPkt;
u16 seq_ctrl, fctl;
fctl = le16_to_cpu(hdr->frame_control);
ver = fctl & IEEE80211_FCTL_VERS;
type = fctl & IEEE80211_FCTL_FTYPE;
subtype = fctl & IEEE80211_FCTL_STYPE;
/* add version chk */
if (ver != 0) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("validate_recv_data_frame fail! (ver!= 0)\n"));
retval = _FAIL;
goto exit;
}
pattrib->to_fr_ds = get_tofr_ds(hdr->frame_control);
seq_ctrl = le16_to_cpu(hdr->seq_ctrl);
pattrib->frag_num = seq_ctrl & IEEE80211_SCTL_FRAG;
pattrib->seq_num = seq_ctrl >> 4;
pattrib->pw_save = ieee80211_has_pm(hdr->frame_control);
pattrib->mfrag = ieee80211_has_morefrags(hdr->frame_control);
pattrib->mdata = ieee80211_has_moredata(hdr->frame_control);
pattrib->privacy = ieee80211_has_protected(hdr->frame_control);
pattrib->order = ieee80211_has_order(hdr->frame_control);
rtw_hal_get_def_var23a(adapter, HAL_DEF_DBG_DUMP_RXPKT, &bDumpRxPkt);
if (unlikely(bDumpRxPkt == 1))
dump_rx_pkt(skb, type, bDumpRxPkt);
switch (type)
{
case IEEE80211_FTYPE_MGMT:
retval = validate_recv_mgnt_frame(adapter, precv_frame);
if (retval == _FAIL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("validate_recv_mgnt_frame fail\n"));
}
retval = _FAIL; /* only data frame return _SUCCESS */
break;
case IEEE80211_FTYPE_CTL:
retval = validate_recv_ctrl_frame(adapter, precv_frame);
if (retval == _FAIL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("validate_recv_ctrl_frame fail\n"));
}
retval = _FAIL; /* only data frame return _SUCCESS */
break;
case IEEE80211_FTYPE_DATA:
rtw_led_control(adapter, LED_CTL_RX);
pattrib->qos = (subtype & IEEE80211_STYPE_QOS_DATA) ? 1 : 0;
retval = validate_recv_data_frame(adapter, precv_frame);
if (retval == _FAIL) {
struct recv_priv *precvpriv = &adapter->recvpriv;
/* RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail\n")); */
precvpriv->rx_drop++;
}
break;
default:
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("validate_recv_data_frame fail! type = 0x%x\n", type));
retval = _FAIL;
break;
}
exit:
return retval;
}
/* remove the wlanhdr and add the eth_hdr */
static int wlanhdr_to_ethhdr (struct recv_frame *precvframe)
{
u16 eth_type, len, hdrlen;
u8 bsnaphdr;
u8 *psnap;
int ret = _SUCCESS;
struct rtw_adapter *adapter = precvframe->adapter;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
struct sk_buff *skb = precvframe->pkt;
u8 *ptr;
struct rx_pkt_attrib *pattrib = &precvframe->attrib;
ptr = skb->data;
hdrlen = pattrib->hdrlen;
psnap = ptr + hdrlen;
eth_type = (psnap[6] << 8) | psnap[7];
/* convert hdr + possible LLC headers into Ethernet header */
/* eth_type = (psnap_type[0] << 8) | psnap_type[1]; */
if ((ether_addr_equal(psnap, rfc1042_header) &&
eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) ||
ether_addr_equal(psnap, bridge_tunnel_header)) {
/* remove RFC1042 or Bridge-Tunnel encapsulation
and replace EtherType */
bsnaphdr = true;
hdrlen += SNAP_SIZE;
} else {
/* Leave Ethernet header part of hdr and full payload */
bsnaphdr = false;
eth_type = (psnap[0] << 8) | psnap[1];
}
len = skb->len - hdrlen;
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("\n === pattrib->hdrlen: %x, pattrib->iv_len:%x ===\n\n",
pattrib->hdrlen, pattrib->iv_len));
pattrib->eth_type = eth_type;
if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true)) {
ptr += hdrlen;
*ptr = 0x87;
*(ptr + 1) = 0x12;
eth_type = 0x8712;
/* append rx status for mp test packets */
ptr = skb_pull(skb, (hdrlen - sizeof(struct ethhdr) + 2) - 24);
memcpy(ptr, skb->head, 24);
ptr += 24;
} else {
ptr = skb_pull(skb, (hdrlen - sizeof(struct ethhdr) +
(bsnaphdr ? 2:0)));
}
ether_addr_copy(ptr, pattrib->dst);
ether_addr_copy(ptr + ETH_ALEN, pattrib->src);
if (!bsnaphdr) {
len = htons(len);
memcpy(ptr + 12, &len, 2);
}
return ret;
}
/* perform defrag */
struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter,
struct rtw_queue *defrag_q);
struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter,
struct rtw_queue *defrag_q)
{
struct list_head *plist, *phead, *ptmp;
u8 *data, wlanhdr_offset;
u8 curfragnum;
struct recv_frame *pnfhdr;
struct recv_frame *prframe, *pnextrframe;
struct rtw_queue *pfree_recv_queue;
struct sk_buff *skb;
curfragnum = 0;
pfree_recv_queue = &adapter->recvpriv.free_recv_queue;
phead = get_list_head(defrag_q);
plist = phead->next;
prframe = container_of(plist, struct recv_frame, list);
list_del_init(&prframe->list);
skb = prframe->pkt;
if (curfragnum != prframe->attrib.frag_num) {
/* the first fragment number must be 0 */
/* free the whole queue */
rtw_free_recvframe23a(prframe, pfree_recv_queue);
rtw_free_recvframe23a_queue(defrag_q, pfree_recv_queue);
return NULL;
}
curfragnum++;
phead = get_list_head(defrag_q);
data = prframe->pkt->data;
list_for_each_safe(plist, ptmp, phead) {
pnfhdr = container_of(plist, struct recv_frame, list);
pnextrframe = (struct recv_frame *)pnfhdr;
/* check the fragment sequence (2nd ~n fragment frame) */
if (curfragnum != pnfhdr->attrib.frag_num) {
/* the fragment number must be increasing
(after decache) */
/* release the defrag_q & prframe */
rtw_free_recvframe23a(prframe, pfree_recv_queue);
rtw_free_recvframe23a_queue(defrag_q, pfree_recv_queue);
return NULL;
}
curfragnum++;
/* copy the 2nd~n fragment frame's payload to the
first fragment */
/* get the 2nd~last fragment frame's payload */
wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len;
skb_pull(pnfhdr->pkt, wlanhdr_offset);
/* append to first fragment frame's tail
(if privacy frame, pull the ICV) */
skb_trim(skb, skb->len - prframe->attrib.icv_len);
memcpy(skb_tail_pointer(skb), pnfhdr->pkt->data,
pnfhdr->pkt->len);
skb_put(skb, pnfhdr->pkt->len);
prframe->attrib.icv_len = pnfhdr->attrib.icv_len;
};
/* free the defrag_q queue and return the prframe */
rtw_free_recvframe23a_queue(defrag_q, pfree_recv_queue);
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("Performance defrag!!!!!\n"));
return prframe;
}
/* check if need to defrag, if needed queue the frame to defrag_q */
struct recv_frame* recvframe_chk_defrag23a(struct rtw_adapter *padapter,
struct recv_frame *precv_frame)
{
u8 ismfrag;
u8 fragnum;
u8 *psta_addr;
struct recv_frame *pfhdr;
struct sta_info *psta;
struct sta_priv *pstapriv;
struct list_head *phead;
struct recv_frame *prtnframe = NULL;
struct rtw_queue *pfree_recv_queue, *pdefrag_q;
pstapriv = &padapter->stapriv;
pfhdr = precv_frame;
pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
/* need to define struct of wlan header frame ctrl */
ismfrag = pfhdr->attrib.mfrag;
fragnum = pfhdr->attrib.frag_num;
psta_addr = pfhdr->attrib.ta;
psta = rtw_get_stainfo23a(pstapriv, psta_addr);
if (!psta) {
struct ieee80211_hdr *hdr =
(struct ieee80211_hdr *) pfhdr->pkt->data;
if (!ieee80211_is_data(hdr->frame_control)) {
psta = rtw_get_bcmc_stainfo23a(padapter);
pdefrag_q = &psta->sta_recvpriv.defrag_q;
} else
pdefrag_q = NULL;
} else
pdefrag_q = &psta->sta_recvpriv.defrag_q;
if ((ismfrag == 0) && (fragnum == 0)) {
prtnframe = precv_frame;/* isn't a fragment frame */
}
if (ismfrag == 1) {
/* 0~(n-1) fragment frame */
/* enqueue to defraf_g */
if (pdefrag_q != NULL) {
if (fragnum == 0) {
/* the first fragment */
if (_rtw_queue_empty23a(pdefrag_q) == false) {
/* free current defrag_q */
rtw_free_recvframe23a_queue(pdefrag_q, pfree_recv_queue);
}
}
/* Then enqueue the 0~(n-1) fragment into the
defrag_q */
/* spin_lock(&pdefrag_q->lock); */
phead = get_list_head(pdefrag_q);
list_add_tail(&pfhdr->list, phead);
/* spin_unlock(&pdefrag_q->lock); */
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("Enqueuq: ismfrag = %d, fragnum = %d\n",
ismfrag, fragnum));
prtnframe = NULL;
} else {
/* can't find this ta's defrag_queue,
so free this recv_frame */
rtw_free_recvframe23a(precv_frame, pfree_recv_queue);
prtnframe = NULL;
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("Free because pdefrag_q == NULL: ismfrag = "
"%d, fragnum = %d\n", ismfrag, fragnum));
}
}
if ((ismfrag == 0) && (fragnum != 0)) {
/* the last fragment frame */
/* enqueue the last fragment */
if (pdefrag_q != NULL) {
/* spin_lock(&pdefrag_q->lock); */
phead = get_list_head(pdefrag_q);
list_add_tail(&pfhdr->list, phead);
/* spin_unlock(&pdefrag_q->lock); */
/* call recvframe_defrag to defrag */
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("defrag: ismfrag = %d, fragnum = %d\n",
ismfrag, fragnum));
precv_frame = recvframe_defrag(padapter, pdefrag_q);
prtnframe = precv_frame;
} else {
/* can't find this ta's defrag_queue,
so free this recv_frame */
rtw_free_recvframe23a(precv_frame, pfree_recv_queue);
prtnframe = NULL;
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("Free because pdefrag_q == NULL: ismfrag = "
"%d, fragnum = %d\n", ismfrag, fragnum));
}
}
if ((prtnframe != NULL) && (prtnframe->attrib.privacy)) {
/* after defrag we must check tkip mic code */
if (recvframe_chkmic(padapter, prtnframe) == _FAIL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("recvframe_chkmic(padapter, prtnframe) =="
"_FAIL\n"));
rtw_free_recvframe23a(prtnframe, pfree_recv_queue);
prtnframe = NULL;
}
}
return prtnframe;
}
int amsdu_to_msdu(struct rtw_adapter *padapter, struct recv_frame *prframe);
int amsdu_to_msdu(struct rtw_adapter *padapter, struct recv_frame *prframe)
{
struct rx_pkt_attrib *pattrib;
struct sk_buff *skb, *sub_skb;
struct sk_buff_head skb_list;
struct recv_priv *precvpriv = &padapter->recvpriv;
struct rtw_queue *pfree_recv_queue = &precvpriv->free_recv_queue;
pattrib = &prframe->attrib;
skb = prframe->pkt;
skb_pull(skb, prframe->attrib.hdrlen);
__skb_queue_head_init(&skb_list);
ieee80211_amsdu_to_8023s(skb, &skb_list, NULL, 0, 0, false);
while (!skb_queue_empty(&skb_list)) {
sub_skb = __skb_dequeue(&skb_list);
sub_skb->protocol = eth_type_trans(sub_skb, padapter->pnetdev);
sub_skb->dev = padapter->pnetdev;
sub_skb->ip_summed = CHECKSUM_NONE;
netif_rx(sub_skb);
}
prframe->pkt = NULL;
rtw_free_recvframe23a(prframe, pfree_recv_queue);
return _SUCCESS;
}
int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num);
int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num)
{
u8 wsize = preorder_ctrl->wsize_b;
u16 wend = (preorder_ctrl->indicate_seq + wsize -1) & 0xFFF;
/* Rx Reorder initialize condition. */
if (preorder_ctrl->indicate_seq == 0xFFFF)
preorder_ctrl->indicate_seq = seq_num;
/* Drop out the packet which SeqNum is smaller than WinStart */
if (SN_LESS(seq_num, preorder_ctrl->indicate_seq))
return false;
/* */
/* Sliding window manipulation. Conditions includes: */
/* 1. Incoming SeqNum is equal to WinStart =>Window shift 1 */
/* 2. Incoming SeqNum is larger than the WinEnd => Window shift N */
/* */
if (SN_EQUAL(seq_num, preorder_ctrl->indicate_seq)) {
preorder_ctrl->indicate_seq =
(preorder_ctrl->indicate_seq + 1) & 0xFFF;
} else if (SN_LESS(wend, seq_num)) {
/* boundary situation, when seq_num cross 0xFFF */
if (seq_num >= (wsize - 1))
preorder_ctrl->indicate_seq = seq_num + 1 -wsize;
else
preorder_ctrl->indicate_seq = 0xFFF - (wsize - (seq_num + 1)) + 1;
}
return true;
}
int enqueue_reorder_recvframe23a(struct recv_reorder_ctrl *preorder_ctrl,
struct recv_frame *prframe)
{
struct rx_pkt_attrib *pattrib = &prframe->attrib;
struct rtw_queue *ppending_recvframe_queue;
struct list_head *phead, *plist, *ptmp;
struct recv_frame *hdr;
struct rx_pkt_attrib *pnextattrib;
ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
/* DbgPrint("+enqueue_reorder_recvframe23a()\n"); */
/* spin_lock_irqsave(&ppending_recvframe_queue->lock); */
/* spin_lock_ex(&ppending_recvframe_queue->lock); */
phead = get_list_head(ppending_recvframe_queue);
list_for_each_safe(plist, ptmp, phead) {
hdr = container_of(plist, struct recv_frame, list);
pnextattrib = &hdr->attrib;
if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num)) {
continue;
} else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num)) {
/* Duplicate entry is found!! Do not insert current entry. */
/* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */
/* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
return false;
} else {
break;
}
/* DbgPrint("enqueue_reorder_recvframe23a():while\n"); */
}
/* spin_lock_irqsave(&ppending_recvframe_queue->lock); */
/* spin_lock_ex(&ppending_recvframe_queue->lock); */
list_del_init(&prframe->list);
list_add_tail(&prframe->list, plist);
/* spin_unlock_ex(&ppending_recvframe_queue->lock); */
/* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
/* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */
return true;
}
int recv_indicatepkts_in_order(struct rtw_adapter *padapter,
struct recv_reorder_ctrl *preorder_ctrl,
int bforced);
int recv_indicatepkts_in_order(struct rtw_adapter *padapter,
struct recv_reorder_ctrl *preorder_ctrl,
int bforced)
{
/* u8 bcancelled; */
struct list_head *phead, *plist;
struct recv_frame *prframe;
struct rx_pkt_attrib *pattrib;
/* u8 index = 0; */
int bPktInBuf = false;
struct recv_priv *precvpriv;
struct rtw_queue *ppending_recvframe_queue;
precvpriv = &padapter->recvpriv;
ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
/* DbgPrint("+recv_indicatepkts_in_order\n"); */
/* spin_lock_irqsave(&ppending_recvframe_queue->lock); */
/* spin_lock_ex(&ppending_recvframe_queue->lock); */
phead = get_list_head(ppending_recvframe_queue);
plist = phead->next;
/* Handling some condition for forced indicate case. */
if (bforced) {
if (list_empty(phead)) {
/* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
/* spin_unlock_ex(&ppending_recvframe_queue->lock); */
return true;
}
prframe = container_of(plist, struct recv_frame, list);
pattrib = &prframe->attrib;
preorder_ctrl->indicate_seq = pattrib->seq_num;
}
/* Prepare indication list and indication. */
/* Check if there is any packet need indicate. */
while (!list_empty(phead)) {
prframe = container_of(plist, struct recv_frame, list);
pattrib = &prframe->attrib;
if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("recv_indicatepkts_in_order: indicate =%d "
"seq =%d amsdu =%d\n",
preorder_ctrl->indicate_seq,
pattrib->seq_num, pattrib->amsdu));
plist = plist->next;
list_del_init(&prframe->list);
if (SN_EQUAL(preorder_ctrl->indicate_seq,
pattrib->seq_num)) {
preorder_ctrl->indicate_seq =
(preorder_ctrl->indicate_seq + 1)&0xFFF;
}
if (!pattrib->amsdu) {
if ((padapter->bDriverStopped == false) &&
(padapter->bSurpriseRemoved == false)) {
rtw_recv_indicatepkt23a(padapter, prframe);
}
} else {
if (amsdu_to_msdu(padapter, prframe) !=
_SUCCESS) {
rtw_free_recvframe23a(prframe,
&precvpriv->free_recv_queue);
}
}
/* Update local variables. */
bPktInBuf = false;
} else {
bPktInBuf = true;
break;
}
/* DbgPrint("recv_indicatepkts_in_order():while\n"); */
}
/* spin_unlock_ex(&ppending_recvframe_queue->lock); */
/* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
return bPktInBuf;
}
int recv_indicatepkt_reorder(struct rtw_adapter *padapter,
struct recv_frame *prframe);
int recv_indicatepkt_reorder(struct rtw_adapter *padapter,
struct recv_frame *prframe)
{
int retval = _SUCCESS;
struct rx_pkt_attrib *pattrib;
struct recv_reorder_ctrl *preorder_ctrl;
struct rtw_queue *ppending_recvframe_queue;
pattrib = &prframe->attrib;
preorder_ctrl = prframe->preorder_ctrl;
ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
if (!pattrib->amsdu) {
/* s1. */
wlanhdr_to_ethhdr(prframe);
if ((pattrib->qos!= 1) || (pattrib->eth_type == ETH_P_ARP) ||
(pattrib->ack_policy != 0)) {
if ((padapter->bDriverStopped == false) &&
(padapter->bSurpriseRemoved == false)) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("@@@@ recv_indicatepkt_reorder -"
"recv_func recv_indicatepkt\n"));
rtw_recv_indicatepkt23a(padapter, prframe);
return _SUCCESS;
}
return _FAIL;
}
if (preorder_ctrl->enable == false) {
/* indicate this recv_frame */
preorder_ctrl->indicate_seq = pattrib->seq_num;
rtw_recv_indicatepkt23a(padapter, prframe);
preorder_ctrl->indicate_seq =
(preorder_ctrl->indicate_seq + 1) % 4096;
return _SUCCESS;
}
} else {
/* temp filter -> means didn't support A-MSDUs in a A-MPDU */
if (preorder_ctrl->enable == false) {
preorder_ctrl->indicate_seq = pattrib->seq_num;
retval = amsdu_to_msdu(padapter, prframe);
preorder_ctrl->indicate_seq =
(preorder_ctrl->indicate_seq + 1) % 4096;
return retval;
}
}
spin_lock_bh(&ppending_recvframe_queue->lock);
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("recv_indicatepkt_reorder: indicate =%d seq =%d\n",
preorder_ctrl->indicate_seq, pattrib->seq_num));
/* s2. check if winstart_b(indicate_seq) needs to been updated */
if (!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) {
goto _err_exit;
}
/* s3. Insert all packet into Reorder Queue to maintain its ordering. */
if (!enqueue_reorder_recvframe23a(preorder_ctrl, prframe)) {
goto _err_exit;
}
/* s4. */
/* Indication process. */
/* After Packet dropping and Sliding Window shifting as above,
we can now just indicate the packets */
/* with the SeqNum smaller than latest WinStart and buffer
other packets. */
/* */
/* For Rx Reorder condition: */
/* 1. All packets with SeqNum smaller than WinStart => Indicate */
/* 2. All packets with SeqNum larger than or equal to WinStart =>
Buffer it. */
/* */
if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false) == true) {
mod_timer(&preorder_ctrl->reordering_ctrl_timer,
jiffies + msecs_to_jiffies(REORDER_WAIT_TIME));
spin_unlock_bh(&ppending_recvframe_queue->lock);
} else {
spin_unlock_bh(&ppending_recvframe_queue->lock);
del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
}
return _SUCCESS;
_err_exit:
spin_unlock_bh(&ppending_recvframe_queue->lock);
return _FAIL;
}
void rtw_reordering_ctrl_timeout_handler23a(unsigned long pcontext)
{
struct recv_reorder_ctrl *preorder_ctrl;
struct rtw_adapter *padapter;
struct rtw_queue *ppending_recvframe_queue;
preorder_ctrl = (struct recv_reorder_ctrl *)pcontext;
padapter = preorder_ctrl->padapter;
ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
if (padapter->bDriverStopped || padapter->bSurpriseRemoved) {
return;
}
/* DBG_8723A("+rtw_reordering_ctrl_timeout_handler23a() =>\n"); */
spin_lock_bh(&ppending_recvframe_queue->lock);
if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true) {
mod_timer(&preorder_ctrl->reordering_ctrl_timer,
jiffies + msecs_to_jiffies(REORDER_WAIT_TIME));
}
spin_unlock_bh(&ppending_recvframe_queue->lock);
}
int process_recv_indicatepkts(struct rtw_adapter *padapter,
struct recv_frame *prframe);
int process_recv_indicatepkts(struct rtw_adapter *padapter,
struct recv_frame *prframe)
{
int retval = _SUCCESS;
/* struct recv_priv *precvpriv = &padapter->recvpriv; */
/* struct rx_pkt_attrib *pattrib = &prframe->attrib; */
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct ht_priv *phtpriv = &pmlmepriv->htpriv;
if (phtpriv->ht_option == true) { /* B/G/N Mode */
/* prframe->preorder_ctrl = &precvpriv->recvreorder_ctrl[pattrib->priority]; */
/* including perform A-MPDU Rx Ordering Buffer Control */
if (recv_indicatepkt_reorder(padapter, prframe) != _SUCCESS) {
if ((padapter->bDriverStopped == false) &&
(padapter->bSurpriseRemoved == false)) {
retval = _FAIL;
return retval;
}
}
} else /* B/G mode */
{
retval = wlanhdr_to_ethhdr(prframe);
if (retval != _SUCCESS) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("wlanhdr_to_ethhdr: drop pkt\n"));
return retval;
}
if ((padapter->bDriverStopped == false) &&
(padapter->bSurpriseRemoved == false)) {
/* indicate this recv_frame */
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("@@@@ process_recv_indicatepkts- "
"recv_func recv_indicatepkt\n"));
rtw_recv_indicatepkt23a(padapter, prframe);
} else {
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("@@@@ process_recv_indicatepkts- "
"recv_func free_indicatepkt\n"));
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
("recv_func:bDriverStopped(%d) OR "
"bSurpriseRemoved(%d)",
padapter->bDriverStopped,
padapter->bSurpriseRemoved));
retval = _FAIL;
return retval;
}
}
return retval;
}
static int recv_func_prehandle(struct rtw_adapter *padapter,
struct recv_frame *rframe)
{
struct rtw_queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
int ret = _SUCCESS;
/* check the frame crtl field and decache */
ret = validate_recv_frame(padapter, rframe);
if (ret != _SUCCESS) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
("recv_func: validate_recv_frame fail! drop pkt\n"));
rtw_free_recvframe23a(rframe, pfree_recv_queue);
goto exit;
}
exit:
return ret;
}
static int recv_func_posthandle(struct rtw_adapter *padapter,
struct recv_frame *prframe)
{
int ret = _SUCCESS;
struct recv_frame *orig_prframe = prframe;
struct recv_priv *precvpriv = &padapter->recvpriv;
struct rtw_queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
/* DATA FRAME */
rtw_led_control(padapter, LED_CTL_RX);
prframe = decryptor(padapter, prframe);
if (prframe == NULL) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("decryptor: drop pkt\n"));
ret = _FAIL;
goto _recv_data_drop;
}
prframe = recvframe_chk_defrag23a(padapter, prframe);
if (!prframe) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("recvframe_chk_defrag23a: drop pkt\n"));
goto _recv_data_drop;
}
/*
* Pull off crypto headers
*/
if (prframe->attrib.iv_len > 0) {
skb_pull(prframe->pkt, prframe->attrib.iv_len);
}
if (prframe->attrib.icv_len > 0) {
skb_trim(prframe->pkt,
prframe->pkt->len - prframe->attrib.icv_len);
}
prframe = portctrl(padapter, prframe);
if (!prframe) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("portctrl: drop pkt\n"));
ret = _FAIL;
goto _recv_data_drop;
}
count_rx_stats(padapter, prframe, NULL);
ret = process_recv_indicatepkts(padapter, prframe);
if (ret != _SUCCESS) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
("recv_func: process_recv_indicatepkts fail!\n"));
rtw_free_recvframe23a(orig_prframe, pfree_recv_queue);/* free this recv_frame */
goto _recv_data_drop;
}
return ret;
_recv_data_drop:
precvpriv->rx_drop++;
return ret;
}
int rtw_recv_entry23a(struct recv_frame *rframe)
{
int ret, r;
struct rtw_adapter *padapter = rframe->adapter;
struct rx_pkt_attrib *prxattrib = &rframe->attrib;
struct recv_priv *recvpriv = &padapter->recvpriv;
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct mlme_priv *mlmepriv = &padapter->mlmepriv;
/* check if need to handle uc_swdec_pending_queue*/
if (check_fwstate(mlmepriv, WIFI_STATION_STATE) &&
psecuritypriv->busetkipkey) {
struct recv_frame *pending_frame;
while ((pending_frame = rtw_alloc_recvframe23a(&padapter->recvpriv.uc_swdec_pending_queue))) {
r = recv_func_posthandle(padapter, pending_frame);
if (r == _SUCCESS)
DBG_8723A("%s: dequeue uc_swdec_pending_queue\n", __func__);
}
}
ret = recv_func_prehandle(padapter, rframe);
if (ret == _SUCCESS) {
/* check if need to enqueue into uc_swdec_pending_queue*/
if (check_fwstate(mlmepriv, WIFI_STATION_STATE) &&
!is_multicast_ether_addr(prxattrib->ra) &&
prxattrib->encrypt > 0 &&
(prxattrib->bdecrypted == 0) &&
!is_wep_enc(psecuritypriv->dot11PrivacyAlgrthm) &&
!psecuritypriv->busetkipkey) {
rtw_enqueue_recvframe23a(rframe, &padapter->recvpriv.uc_swdec_pending_queue);
DBG_8723A("%s: no key, enqueue uc_swdec_pending_queue\n", __func__);
goto exit;
}
ret = recv_func_posthandle(padapter, rframe);
recvpriv->rx_pkts++;
}
exit:
return ret;
}
void rtw_signal_stat_timer_hdl23a(unsigned long data)
{
struct rtw_adapter *adapter = (struct rtw_adapter *)data;
struct recv_priv *recvpriv = &adapter->recvpriv;
u32 tmp_s, tmp_q;
u8 avg_signal_strength = 0;
u8 avg_signal_qual = 0;
u32 num_signal_strength = 0;
u32 num_signal_qual = 0;
u8 _alpha = 3; /* this value is based on converging_constant = 5000 */
/* and sampling_interval = 1000 */
if (adapter->recvpriv.is_signal_dbg) {
/* update the user specific value, signal_strength_dbg, */
/* to signal_strength, rssi */
adapter->recvpriv.signal_strength =
adapter->recvpriv.signal_strength_dbg;
adapter->recvpriv.rssi =
(s8)translate_percentage_to_dbm((u8)adapter->recvpriv.signal_strength_dbg);
} else {
if (recvpriv->signal_strength_data.update_req == 0) {
/* update_req is clear, means we got rx */
avg_signal_strength =
recvpriv->signal_strength_data.avg_val;
num_signal_strength =
recvpriv->signal_strength_data.total_num;
/* after avg_vals are accquired, we can re-stat */
/* the signal values */
recvpriv->signal_strength_data.update_req = 1;
}
if (recvpriv->signal_qual_data.update_req == 0) {
/* update_req is clear, means we got rx */
avg_signal_qual = recvpriv->signal_qual_data.avg_val;
num_signal_qual = recvpriv->signal_qual_data.total_num;
/* after avg_vals are accquired, we can re-stat */
/*the signal values */
recvpriv->signal_qual_data.update_req = 1;
}
/* update value of signal_strength, rssi, signal_qual */
if (check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY) ==
false) {
tmp_s = (avg_signal_strength + (_alpha - 1) *
recvpriv->signal_strength);
if (tmp_s %_alpha)
tmp_s = tmp_s / _alpha + 1;
else
tmp_s = tmp_s / _alpha;
if (tmp_s > 100)
tmp_s = 100;
tmp_q = (avg_signal_qual + (_alpha - 1) *
recvpriv->signal_qual);
if (tmp_q %_alpha)
tmp_q = tmp_q / _alpha + 1;
else
tmp_q = tmp_q / _alpha;
if (tmp_q > 100)
tmp_q = 100;
recvpriv->signal_strength = tmp_s;
recvpriv->rssi = (s8)translate_percentage_to_dbm(tmp_s);
recvpriv->signal_qual = tmp_q;
DBG_8723A("%s signal_strength:%3u, rssi:%3d, "
"signal_qual:%3u, num_signal_strength:%u, "
"num_signal_qual:%u\n",
__func__, recvpriv->signal_strength,
recvpriv->rssi, recvpriv->signal_qual,
num_signal_strength, num_signal_qual
);
}
}
rtw_set_signal_stat_timer(recvpriv);
}