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rtw_recv.c
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/******************************************************************************
*
* Copyright(c) 2007 - 2017 Realtek Corporation.
*
* 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 <drv_types.h>
#include <hal_data.h>
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
static void rtw_signal_stat_timer_hdl(void *ctx);
enum {
SIGNAL_STAT_CALC_PROFILE_0 = 0,
SIGNAL_STAT_CALC_PROFILE_1,
SIGNAL_STAT_CALC_PROFILE_2,
SIGNAL_STAT_CALC_PROFILE_MAX
};
u8 signal_stat_calc_profile[SIGNAL_STAT_CALC_PROFILE_MAX][3] = {
{4, 1}, /* Profile 0 => pre_stat : curr_stat = 4 : 1 */
{3, 7}, /* Profile 1 => pre_stat : curr_stat = 3 : 7 */
{0, 10} /* Profile 2 => pre_stat : curr_stat = 0 : 10 */
};
#ifndef RTW_SIGNAL_STATE_CALC_PROFILE
#define RTW_SIGNAL_STATE_CALC_PROFILE SIGNAL_STAT_CALC_PROFILE_1
#endif
#endif /* CONFIG_NEW_SIGNAL_STAT_PROCESS */
u8 rtw_bridge_tunnel_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
u8 rtw_rfc1042_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
#ifdef CONFIG_TDLS
static u8 SNAP_ETH_TYPE_TDLS[2] = {0x89, 0x0d};
#endif
void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
{
_rtw_memset((u8 *)psta_recvpriv, 0, sizeof(struct sta_recv_priv));
_rtw_spinlock_init(&psta_recvpriv->lock);
/* for(i=0; i<MAX_RX_NUMBLKS; i++) */
/* _rtw_init_queue(&psta_recvpriv->blk_strms[i]); */
_rtw_init_queue(&psta_recvpriv->defrag_q);
}
sint _rtw_init_recv_priv(struct recv_priv *precvpriv, _adapter *padapter)
{
sint i;
union recv_frame *precvframe;
sint res = _SUCCESS;
/* We don't need to memset padapter->XXX to zero, because adapter is allocated by rtw_zvmalloc(). */
/* _rtw_memset((unsigned char *)precvpriv, 0, sizeof (struct recv_priv)); */
_rtw_spinlock_init(&precvpriv->lock);
#ifdef CONFIG_RECV_THREAD_MODE
_rtw_init_sema(&precvpriv->recv_sema, 0);
#endif
_rtw_init_queue(&precvpriv->free_recv_queue);
_rtw_init_queue(&precvpriv->recv_pending_queue);
_rtw_init_queue(&precvpriv->uc_swdec_pending_queue);
precvpriv->adapter = padapter;
precvpriv->free_recvframe_cnt = NR_RECVFRAME;
precvpriv->sink_udpport = 0;
precvpriv->pre_rtp_rxseq = 0;
precvpriv->cur_rtp_rxseq = 0;
#ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
precvpriv->store_law_data_flag = 1;
#else
precvpriv->store_law_data_flag = 0;
#endif
rtw_os_recv_resource_init(precvpriv, padapter);
precvpriv->pallocated_frame_buf = rtw_zvmalloc(NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ);
if (precvpriv->pallocated_frame_buf == NULL) {
res = _FAIL;
goto exit;
}
/* _rtw_memset(precvpriv->pallocated_frame_buf, 0, NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ); */
precvpriv->precv_frame_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ);
/* precvpriv->precv_frame_buf = precvpriv->pallocated_frame_buf + RXFRAME_ALIGN_SZ - */
/* ((SIZE_PTR) (precvpriv->pallocated_frame_buf) &(RXFRAME_ALIGN_SZ-1)); */
precvframe = (union recv_frame *) precvpriv->precv_frame_buf;
for (i = 0; i < NR_RECVFRAME ; i++) {
_rtw_init_listhead(&(precvframe->u.list));
rtw_list_insert_tail(&(precvframe->u.list), &(precvpriv->free_recv_queue.queue));
rtw_os_recv_resource_alloc(padapter, precvframe);
precvframe->u.hdr.len = 0;
precvframe->u.hdr.adapter = padapter;
precvframe++;
}
#ifdef CONFIG_USB_HCI
ATOMIC_SET(&(precvpriv->rx_pending_cnt), 1);
_rtw_init_sema(&precvpriv->allrxreturnevt, 0);
#endif
res = rtw_hal_init_recv_priv(padapter);
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
rtw_init_timer(&precvpriv->signal_stat_timer, padapter, rtw_signal_stat_timer_hdl, padapter);
precvpriv->signal_stat_sampling_interval = 2000; /* ms */
/* precvpriv->signal_stat_converging_constant = 5000; */ /* ms */
rtw_set_signal_stat_timer(precvpriv);
#endif /* CONFIG_NEW_SIGNAL_STAT_PROCESS */
exit:
return res;
}
void rtw_mfree_recv_priv_lock(struct recv_priv *precvpriv);
void rtw_mfree_recv_priv_lock(struct recv_priv *precvpriv)
{
_rtw_spinlock_free(&precvpriv->lock);
#ifdef CONFIG_RECV_THREAD_MODE
_rtw_free_sema(&precvpriv->recv_sema);
#endif
_rtw_spinlock_free(&precvpriv->free_recv_queue.lock);
_rtw_spinlock_free(&precvpriv->recv_pending_queue.lock);
_rtw_spinlock_free(&precvpriv->free_recv_buf_queue.lock);
#ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
_rtw_spinlock_free(&precvpriv->recv_buf_pending_queue.lock);
#endif /* CONFIG_USE_USB_BUFFER_ALLOC_RX */
}
void _rtw_free_recv_priv(struct recv_priv *precvpriv)
{
_adapter *padapter = precvpriv->adapter;
rtw_free_uc_swdec_pending_queue(padapter);
rtw_mfree_recv_priv_lock(precvpriv);
rtw_os_recv_resource_free(precvpriv);
if (precvpriv->pallocated_frame_buf)
rtw_vmfree(precvpriv->pallocated_frame_buf, NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ);
rtw_hal_free_recv_priv(padapter);
}
bool rtw_rframe_del_wfd_ie(union recv_frame *rframe, u8 ies_offset)
{
#define DBG_RFRAME_DEL_WFD_IE 0
u8 *ies = rframe->u.hdr.rx_data + sizeof(struct rtw_ieee80211_hdr_3addr) + ies_offset;
uint ies_len_ori = rframe->u.hdr.len - (ies - rframe->u.hdr.rx_data);
uint ies_len;
ies_len = rtw_del_wfd_ie(ies, ies_len_ori, DBG_RFRAME_DEL_WFD_IE ? __func__ : NULL);
rframe->u.hdr.len -= ies_len_ori - ies_len;
return ies_len_ori != ies_len;
}
union recv_frame *_rtw_alloc_recvframe(_queue *pfree_recv_queue)
{
union recv_frame *precvframe;
_list *plist, *phead;
_adapter *padapter;
struct recv_priv *precvpriv;
if (_rtw_queue_empty(pfree_recv_queue) == _TRUE)
precvframe = NULL;
else {
phead = get_list_head(pfree_recv_queue);
plist = get_next(phead);
precvframe = LIST_CONTAINOR(plist, union recv_frame, u);
rtw_list_delete(&precvframe->u.hdr.list);
padapter = precvframe->u.hdr.adapter;
if (padapter != NULL) {
precvpriv = &padapter->recvpriv;
if (pfree_recv_queue == &precvpriv->free_recv_queue)
precvpriv->free_recvframe_cnt--;
}
}
return precvframe;
}
union recv_frame *rtw_alloc_recvframe(_queue *pfree_recv_queue)
{
_irqL irqL;
union recv_frame *precvframe;
_enter_critical_bh(&pfree_recv_queue->lock, &irqL);
precvframe = _rtw_alloc_recvframe(pfree_recv_queue);
_exit_critical_bh(&pfree_recv_queue->lock, &irqL);
return precvframe;
}
void rtw_init_recvframe(union recv_frame *precvframe, struct recv_priv *precvpriv)
{
/* Perry: This can be removed */
_rtw_init_listhead(&precvframe->u.hdr.list);
precvframe->u.hdr.len = 0;
}
int rtw_free_recvframe(union recv_frame *precvframe, _queue *pfree_recv_queue)
{
_irqL irqL;
_adapter *padapter = precvframe->u.hdr.adapter;
struct recv_priv *precvpriv = &padapter->recvpriv;
#ifdef CONFIG_CONCURRENT_MODE
padapter = GET_PRIMARY_ADAPTER(padapter);
precvpriv = &padapter->recvpriv;
pfree_recv_queue = &precvpriv->free_recv_queue;
precvframe->u.hdr.adapter = padapter;
#endif
rtw_os_free_recvframe(precvframe);
_enter_critical_bh(&pfree_recv_queue->lock, &irqL);
rtw_list_delete(&(precvframe->u.hdr.list));
precvframe->u.hdr.len = 0;
precvframe->u.hdr.attrib.phy_info.physts_rpt_valid = _FALSE;
rtw_list_insert_tail(&(precvframe->u.hdr.list), get_list_head(pfree_recv_queue));
if (padapter != NULL) {
if (pfree_recv_queue == &precvpriv->free_recv_queue)
precvpriv->free_recvframe_cnt++;
}
_exit_critical_bh(&pfree_recv_queue->lock, &irqL);
return _SUCCESS;
}
sint _rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue)
{
_adapter *padapter = precvframe->u.hdr.adapter;
struct recv_priv *precvpriv = &padapter->recvpriv;
/* _rtw_init_listhead(&(precvframe->u.hdr.list)); */
rtw_list_delete(&(precvframe->u.hdr.list));
rtw_list_insert_tail(&(precvframe->u.hdr.list), get_list_head(queue));
if (padapter != NULL) {
if (queue == &precvpriv->free_recv_queue)
precvpriv->free_recvframe_cnt++;
}
return _SUCCESS;
}
sint rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue)
{
sint ret;
_irqL irqL;
/* _spinlock(&pfree_recv_queue->lock); */
_enter_critical_bh(&queue->lock, &irqL);
ret = _rtw_enqueue_recvframe(precvframe, queue);
/* _rtw_spinunlock(&pfree_recv_queue->lock); */
_exit_critical_bh(&queue->lock, &irqL);
return ret;
}
/*
sint rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue)
{
return rtw_free_recvframe(precvframe, queue);
}
*/
/*
caller : defrag ; recvframe_chk_defrag in recv_thread (passive)
pframequeue: defrag_queue : will be accessed in recv_thread (passive)
using spinlock to protect
*/
void rtw_free_recvframe_queue(_queue *pframequeue, _queue *pfree_recv_queue)
{
union recv_frame *precvframe;
_list *plist, *phead;
_rtw_spinlock(&pframequeue->lock);
phead = get_list_head(pframequeue);
plist = get_next(phead);
while (rtw_end_of_queue_search(phead, plist) == _FALSE) {
precvframe = LIST_CONTAINOR(plist, union recv_frame, u);
plist = get_next(plist);
/* rtw_list_delete(&precvframe->u.hdr.list); */ /* will do this in rtw_free_recvframe() */
rtw_free_recvframe(precvframe, pfree_recv_queue);
}
_rtw_spinunlock(&pframequeue->lock);
}
u32 rtw_free_uc_swdec_pending_queue(_adapter *adapter)
{
u32 cnt = 0;
union recv_frame *pending_frame;
while ((pending_frame = rtw_alloc_recvframe(&adapter->recvpriv.uc_swdec_pending_queue))) {
rtw_free_recvframe(pending_frame, &adapter->recvpriv.free_recv_queue);
cnt++;
}
if (cnt)
RTW_INFO(FUNC_ADPT_FMT" dequeue %d\n", FUNC_ADPT_ARG(adapter), cnt);
return cnt;
}
#ifndef CONFIG_RECVBUF_QUEUE_LOCK_BH
#ifdef CONFIG_SDIO_HCI
#define CONFIG_RECVBUF_QUEUE_LOCK_BH 1
#else
#define CONFIG_RECVBUF_QUEUE_LOCK_BH 0
#endif
#endif /* CONFIG_RECVBUF_QUEUE_LOCK_BH */
sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, _queue *queue)
{
_irqL irqL;
#if CONFIG_RECVBUF_QUEUE_LOCK_BH
_enter_critical_bh(&queue->lock, &irqL);
#else
_enter_critical_ex(&queue->lock, &irqL);
#endif
rtw_list_delete(&precvbuf->list);
rtw_list_insert_head(&precvbuf->list, get_list_head(queue));
#if CONFIG_RECVBUF_QUEUE_LOCK_BH
_exit_critical_bh(&queue->lock, &irqL);
#else
_exit_critical_ex(&queue->lock, &irqL);
#endif
return _SUCCESS;
}
sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, _queue *queue)
{
_irqL irqL;
#if CONFIG_RECVBUF_QUEUE_LOCK_BH
_enter_critical_bh(&queue->lock, &irqL);
#else
_enter_critical_ex(&queue->lock, &irqL);
#endif
rtw_list_delete(&precvbuf->list);
rtw_list_insert_tail(&precvbuf->list, get_list_head(queue));
#if CONFIG_RECVBUF_QUEUE_LOCK_BH
_exit_critical_bh(&queue->lock, &irqL);
#else
_exit_critical_ex(&queue->lock, &irqL);
#endif
return _SUCCESS;
}
struct recv_buf *rtw_dequeue_recvbuf(_queue *queue)
{
_irqL irqL;
struct recv_buf *precvbuf;
_list *plist, *phead;
#if CONFIG_RECVBUF_QUEUE_LOCK_BH
_enter_critical_bh(&queue->lock, &irqL);
#else
_enter_critical_ex(&queue->lock, &irqL);
#endif
if (_rtw_queue_empty(queue) == _TRUE)
precvbuf = NULL;
else {
phead = get_list_head(queue);
plist = get_next(phead);
precvbuf = LIST_CONTAINOR(plist, struct recv_buf, list);
rtw_list_delete(&precvbuf->list);
}
#if CONFIG_RECVBUF_QUEUE_LOCK_BH
_exit_critical_bh(&queue->lock, &irqL);
#else
_exit_critical_ex(&queue->lock, &irqL);
#endif
return precvbuf;
}
sint recvframe_chkmic(_adapter *adapter, union recv_frame *precvframe);
sint recvframe_chkmic(_adapter *adapter, union recv_frame *precvframe)
{
sint 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->u.hdr.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_stainfo(&adapter->stapriv , &prxattrib->ta[0]);
if (prxattrib->encrypt == _TKIP_) {
/* calculate mic code */
if (stainfo != NULL) {
if (IS_MCAST(prxattrib->ra)) {
/* mickey=&psecuritypriv->dot118021XGrprxmickey.skey[0]; */
/* iv = precvframe->u.hdr.rx_data+prxattrib->hdrlen; */
/* rxdata_key_idx =( ((iv[3])>>6)&0x3) ; */
mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
/* RTW_INFO("\n recvframe_chkmic: bcmc key psecuritypriv->dot118021XGrpKeyid(%d),pmlmeinfo->key_index(%d) ,recv key_id(%d)\n", */
/* psecuritypriv->dot118021XGrpKeyid,pmlmeinfo->key_index,rxdata_key_idx); */
if (psecuritypriv->binstallGrpkey == _FALSE) {
res = _FAIL;
RTW_INFO("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n");
goto exit;
}
} else {
mickey = &stainfo->dot11tkiprxmickey.skey[0];
}
datalen = precvframe->u.hdr.len - prxattrib->hdrlen - prxattrib->iv_len - prxattrib->icv_len - 8; /* icv_len included the mic code */
pframe = precvframe->u.hdr.rx_data;
payload = pframe + prxattrib->hdrlen + prxattrib->iv_len;
/* rtw_seccalctkipmic(&stainfo->dot11tkiprxmickey.skey[0],pframe,payload, datalen ,&miccode[0],(unsigned char)prxattrib->priority); */ /* care the length of the data */
rtw_seccalctkipmic(mickey, pframe, payload, datalen , &miccode[0], (unsigned char)prxattrib->priority); /* care the length of the data */
pframemic = payload + datalen;
bmic_err = _FALSE;
for (i = 0; i < 8; i++) {
if (miccode[i] != *(pframemic + i)) {
bmic_err = _TRUE;
}
}
if (bmic_err == _TRUE) {
/* double check key_index for some timing issue , */
/* cannot compare with psecuritypriv->dot118021XGrpKeyid also cause timing issue */
if ((IS_MCAST(prxattrib->ra) == _TRUE) && (prxattrib->key_index != pmlmeinfo->key_index))
brpt_micerror = _FALSE;
if ((prxattrib->bdecrypted == _TRUE) && (brpt_micerror == _TRUE)) {
rtw_handle_tkip_mic_err(adapter, stainfo, (u8)IS_MCAST(prxattrib->ra));
RTW_INFO(" mic error :prxattrib->bdecrypted=%d\n", prxattrib->bdecrypted);
} else {
RTW_INFO(" mic error :prxattrib->bdecrypted=%d\n", prxattrib->bdecrypted);
}
res = _FAIL;
} else {
/* mic checked ok */
if ((psecuritypriv->bcheck_grpkey == _FALSE) && (IS_MCAST(prxattrib->ra) == _TRUE)) {
psecuritypriv->bcheck_grpkey = _TRUE;
}
}
}
recvframe_pull_tail(precvframe, 8);
}
exit:
return res;
}
/*#define DBG_RX_SW_DECRYPTOR*/
/* decrypt and set the ivlen,icvlen of the recv_frame */
union recv_frame *decryptor(_adapter *padapter, union recv_frame *precv_frame);
union recv_frame *decryptor(_adapter *padapter, union recv_frame *precv_frame)
{
struct rx_pkt_attrib *prxattrib = &precv_frame->u.hdr.attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
union recv_frame *return_packet = precv_frame;
u32 res = _SUCCESS;
DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt);
if (prxattrib->encrypt > 0) {
u8 *iv = precv_frame->u.hdr.rx_data + prxattrib->hdrlen;
prxattrib->key_index = (((iv[3]) >> 6) & 0x3) ;
if (prxattrib->key_index > WEP_KEYS) {
RTW_INFO("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_:
case _GCMP_:
case _GCMP_256_:
case _CCMP_256_:
default:
prxattrib->key_index = psecuritypriv->dot118021XGrpKeyid;
break;
}
}
}
if (prxattrib->encrypt && !prxattrib->bdecrypted) {
if (GetFrameType(get_recvframe_data(precv_frame)) == WIFI_DATA
#ifdef CONFIG_CONCURRENT_MODE
&& !IS_MCAST(prxattrib->ra) /* bc/mc packets may use sw decryption for concurrent mode */
#endif
)
psecuritypriv->hw_decrypted = _FALSE;
#ifdef DBG_RX_SW_DECRYPTOR
RTW_INFO(ADPT_FMT" - sec_type:%s DO SW decryption\n",
ADPT_ARG(padapter), security_type_str(prxattrib->encrypt));
#endif
#ifdef DBG_RX_DECRYPTOR
RTW_INFO("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
__FUNCTION__,
__LINE__,
prxattrib->bdecrypted,
prxattrib->encrypt,
psecuritypriv->hw_decrypted);
#endif
switch (prxattrib->encrypt) {
case _WEP40_:
case _WEP104_:
DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_wep);
rtw_wep_decrypt(padapter, (u8 *)precv_frame);
break;
case _TKIP_:
DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_tkip);
res = rtw_tkip_decrypt(padapter, (u8 *)precv_frame);
break;
case _AES_:
case _CCMP_256_:
DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_aes);
res = rtw_aes_decrypt(padapter, (u8 *)precv_frame);
break;
case _GCMP_:
case _GCMP_256_:
DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_gcmp);
res = rtw_gcmp_decrypt(padapter, (u8 *)precv_frame);
break;
#ifdef CONFIG_WAPI_SUPPORT
case _SMS4_:
DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_wapi);
rtw_sms4_decrypt(padapter, (u8 *)precv_frame);
break;
#endif
default:
break;
}
} else if (prxattrib->bdecrypted == 1
&& prxattrib->encrypt > 0
&& (psecuritypriv->busetkipkey == 1 || prxattrib->encrypt != _TKIP_)
) {
#if 0
if ((prxstat->icv == 1) && (prxattrib->encrypt != _AES_)) {
psecuritypriv->hw_decrypted = _FALSE;
rtw_free_recvframe(precv_frame, &padapter->recvpriv.free_recv_queue);
return_packet = NULL;
} else
#endif
{
DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_hw);
psecuritypriv->hw_decrypted = _TRUE;
#ifdef DBG_RX_DECRYPTOR
RTW_INFO("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
__FUNCTION__,
__LINE__,
prxattrib->bdecrypted,
prxattrib->encrypt,
psecuritypriv->hw_decrypted);
#endif
}
} else {
DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_unknown);
#ifdef DBG_RX_DECRYPTOR
RTW_INFO("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
__FUNCTION__,
__LINE__,
prxattrib->bdecrypted,
prxattrib->encrypt,
psecuritypriv->hw_decrypted);
#endif
}
#ifdef CONFIG_RTW_MESH
if (res != _FAIL
&& !prxattrib->amsdu
&& prxattrib->mesh_ctrl_present)
res = rtw_mesh_rx_validate_mctrl_non_amsdu(padapter, precv_frame);
#endif
if (res == _FAIL) {
rtw_free_recvframe(return_packet, &padapter->recvpriv.free_recv_queue);
return_packet = NULL;
} else
prxattrib->bdecrypted = _TRUE;
/* recvframe_chkmic(adapter, precv_frame); */ /* move to recvframme_defrag function */
return return_packet;
}
/* ###set the security information in the recv_frame */
union recv_frame *portctrl(_adapter *adapter, union recv_frame *precv_frame);
union recv_frame *portctrl(_adapter *adapter, union recv_frame *precv_frame)
{
u8 *psta_addr = NULL;
u8 *ptr;
uint auth_alg;
struct recv_frame_hdr *pfhdr;
struct sta_info *psta;
struct sta_priv *pstapriv ;
union recv_frame *prtnframe;
u16 ether_type = 0;
u16 eapol_type = 0x888e;/* for Funia BD's WPA issue */
struct rx_pkt_attrib *pattrib;
pstapriv = &adapter->stapriv;
auth_alg = adapter->securitypriv.dot11AuthAlgrthm;
ptr = get_recvframe_data(precv_frame);
pfhdr = &precv_frame->u.hdr;
pattrib = &pfhdr->attrib;
psta_addr = pattrib->ta;
prtnframe = NULL;
psta = rtw_get_stainfo(pstapriv, psta_addr);
if (auth_alg == dot11AuthAlgrthm_8021X) {
if ((psta != NULL) && (psta->ieee8021x_blocked)) {
/* blocked */
/* only accept EAPOL frame */
prtnframe = precv_frame;
/* get ether_type */
ptr = ptr + pfhdr->attrib.hdrlen + pfhdr->attrib.iv_len + LLC_HEADER_SIZE;
_rtw_memcpy(ðer_type, ptr, 2);
ether_type = ntohs((unsigned short)ether_type);
if (ether_type == eapol_type)
prtnframe = precv_frame;
else {
/* free this frame */
rtw_free_recvframe(precv_frame, &adapter->recvpriv.free_recv_queue);
prtnframe = NULL;
}
} else {
/* allowed */
/* check decryption status, and decrypt the frame if needed */
prtnframe = precv_frame;
/* check is the EAPOL frame or not (Rekey) */
/* if(ether_type == eapol_type){ */
/* check Rekey */
/* prtnframe=precv_frame; */
/* } */
}
} else
prtnframe = precv_frame;
return prtnframe;
}
/* VALID_PN_CHK
* Return true when PN is legal, otherwise false.
* Legal PN:
* 1. If old PN is 0, any PN is legal
* 2. PN > old PN
*/
#define PN_LESS_CHK(a, b) (((a-b) & 0x800000000000) != 0)
#define VALID_PN_CHK(new, old) (((old) == 0) || PN_LESS_CHK(old, new))
#define CCMPH_2_KEYID(ch) (((ch) & 0x00000000c0000000) >> 30)
sint recv_ucast_pn_decache(union recv_frame *precv_frame);
sint recv_ucast_pn_decache(union recv_frame *precv_frame)
{
struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
struct sta_info *sta = precv_frame->u.hdr.psta;
struct stainfo_rxcache *prxcache = &sta->sta_recvpriv.rxcache;
u8 *pdata = precv_frame->u.hdr.rx_data;
sint tid = precv_frame->u.hdr.attrib.priority;
u64 tmp_iv_hdr = 0;
u64 curr_pn = 0, pkt_pn = 0;
if (tid > 15)
return _FAIL;
if (pattrib->encrypt == _AES_) {
tmp_iv_hdr = le64_to_cpu(*(u64*)(pdata + pattrib->hdrlen));
pkt_pn = CCMPH_2_PN(tmp_iv_hdr);
tmp_iv_hdr = le64_to_cpu(*(u64*)prxcache->iv[tid]);
curr_pn = CCMPH_2_PN(tmp_iv_hdr);
if (!VALID_PN_CHK(pkt_pn, curr_pn)) {
/* return _FAIL; */
} else {
prxcache->last_tid = tid;
_rtw_memcpy(prxcache->iv[tid],
(pdata + pattrib->hdrlen),
sizeof(prxcache->iv[tid]));
}
}
return _SUCCESS;
}
sint recv_bcast_pn_decache(union recv_frame *precv_frame);
sint recv_bcast_pn_decache(union recv_frame *precv_frame)
{
_adapter *padapter = precv_frame->u.hdr.adapter;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
u8 *pdata = precv_frame->u.hdr.rx_data;
u64 tmp_iv_hdr = 0;
u64 curr_pn = 0, pkt_pn = 0;
u8 key_id;
if ((pattrib->encrypt == _AES_) &&
(check_fwstate(pmlmepriv, WIFI_STATION_STATE) == _TRUE)) {
tmp_iv_hdr = le64_to_cpu(*(u64*)(pdata + pattrib->hdrlen));
key_id = CCMPH_2_KEYID(tmp_iv_hdr);
pkt_pn = CCMPH_2_PN(tmp_iv_hdr);
curr_pn = le64_to_cpu(*(u64*)psecuritypriv->iv_seq[key_id]);
curr_pn &= 0x0000ffffffffffff;
if (!VALID_PN_CHK(pkt_pn, curr_pn))
return _FAIL;
*(u64*)psecuritypriv->iv_seq[key_id] = cpu_to_le64(pkt_pn);
}
return _SUCCESS;
}
sint recv_decache(union recv_frame *precv_frame)
{
struct sta_info *psta = precv_frame->u.hdr.psta;
struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
_adapter *adapter = psta->padapter;
sint tid = pattrib->priority;
u16 seq_ctrl = ((precv_frame->u.hdr.attrib.seq_num & 0xffff) << 4) |
(precv_frame->u.hdr.attrib.frag_num & 0xf);
u16 *prxseq;
if (tid > 15)
return _FAIL;
if (pattrib->qos) {
if (IS_MCAST(pattrib->ra))
prxseq = &psta->sta_recvpriv.bmc_tid_rxseq[tid];
else
prxseq = &psta->sta_recvpriv.rxcache.tid_rxseq[tid];
} else {
if (IS_MCAST(pattrib->ra)) {
prxseq = &psta->sta_recvpriv.nonqos_bmc_rxseq;
#ifdef DBG_RX_SEQ
RTW_INFO("DBG_RX_SEQ "FUNC_ADPT_FMT" nonqos bmc seq_num:%d\n"
, FUNC_ADPT_ARG(adapter), pattrib->seq_num);
#endif
} else {
prxseq = &psta->sta_recvpriv.nonqos_rxseq;
#ifdef DBG_RX_SEQ
RTW_INFO("DBG_RX_SEQ "FUNC_ADPT_FMT" nonqos seq_num:%d\n"
, FUNC_ADPT_ARG(adapter), pattrib->seq_num);
#endif
}
}
if (seq_ctrl == *prxseq) {
/* for non-AMPDU case */
psta->sta_stats.duplicate_cnt++;
if (psta->sta_stats.duplicate_cnt % 100 == 0)
RTW_INFO("%s: tid=%u seq=%d frag=%d\n", __func__
, tid, precv_frame->u.hdr.attrib.seq_num
, precv_frame->u.hdr.attrib.frag_num);
#ifdef DBG_RX_DROP_FRAME
RTW_INFO("DBG_RX_DROP_FRAME "FUNC_ADPT_FMT" recv_decache _FAIL for sta="MAC_FMT"\n"
, FUNC_ADPT_ARG(adapter), MAC_ARG(psta->cmn.mac_addr));
#endif
return _FAIL;
}
*prxseq = seq_ctrl;
return _SUCCESS;
}
void process_pwrbit_data(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *psta)
{
#ifdef CONFIG_AP_MODE
unsigned char pwrbit;
u8 *ptr = precv_frame->u.hdr.rx_data;
pwrbit = GetPwrMgt(ptr);
if (pwrbit) {
if (!(psta->state & WIFI_SLEEP_STATE)) {
/* psta->state |= WIFI_SLEEP_STATE; */
/* rtw_tim_map_set(padapter, pstapriv->sta_dz_bitmap, BIT(psta->cmn.aid)); */
stop_sta_xmit(padapter, psta);
/* RTW_INFO_DUMP("to sleep, sta_dz_bitmap=", pstapriv->sta_dz_bitmap, pstapriv->aid_bmp_len); */
}
} else {
if (psta->state & WIFI_SLEEP_STATE) {
/* psta->state ^= WIFI_SLEEP_STATE; */
/* rtw_tim_map_clear(padapter, pstapriv->sta_dz_bitmap, BIT(psta->cmn.aid)); */
wakeup_sta_to_xmit(padapter, psta);
/* RTW_INFO_DUMP("to wakeup, sta_dz_bitmap=", pstapriv->sta_dz_bitmap, pstapriv->aid_bmp_len); */
}
}
#endif
}
void process_wmmps_data(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *psta)
{
#ifdef CONFIG_AP_MODE
struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
#ifdef CONFIG_TDLS
if (!(psta->tdls_sta_state & TDLS_LINKED_STATE)) {
#endif /* CONFIG_TDLS */
if (!psta->qos_option)
return;
if (!(psta->qos_info & 0xf))
return;
#ifdef CONFIG_TDLS
}
#endif /* CONFIG_TDLS */
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: