linux/drivers/staging/rtl8712/rtl871x_recv.c

// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
 * rtl871x_recv.c
 *
 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
 * Linux device driver for RTL8192SU
 *
 * Modifications for inclusion into the Linux staging tree are
 * Copyright(c) 2010 Larry Finger. All rights reserved.
 *
 * Contact information:
 * WLAN FAE <[email protected]>
 * Larry Finger <[email protected]>
 *
 ******************************************************************************/

#define _RTL871X_RECV_C_

#include <linux/ip.h>
#include <linux/if_ether.h>
#include <linux/etherdevice.h>
#include <linux/ieee80211.h>
#include <net/cfg80211.h>

#include "osdep_service.h"
#include "drv_types.h"
#include "recv_osdep.h"
#include "mlme_osdep.h"
#include "ethernet.h"
#include "usb_ops.h"
#include "wifi.h"

static const u8 SNAP_ETH_TYPE_IPX[2] = …;

/* Datagram Delivery Protocol */
static const u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = …;

void _r8712_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
{ … }

int _r8712_init_recv_priv(struct recv_priv *precvpriv,
			  struct _adapter *padapter)
{ … }

void _r8712_free_recv_priv(struct recv_priv *precvpriv)
{ … }

union recv_frame *r8712_alloc_recvframe(struct __queue *pfree_recv_queue)
{ … }

/*
 * caller : defrag; recvframe_chk_defrag in recv_thread  (passive)
 * pframequeue: defrag_queue : will be accessed in recv_thread  (passive)
 * using spin_lock to protect
 */
void r8712_free_recvframe_queue(struct  __queue *pframequeue,
				struct  __queue *pfree_recv_queue)
{ … }

sint r8712_recvframe_chkmic(struct _adapter *adapter,
			    union recv_frame *precvframe)
{ … }

/* decrypt and set the ivlen,icvlen of the recv_frame */
union recv_frame *r8712_decryptor(struct _adapter *padapter,
				  union recv_frame *precv_frame)
{ … }

/*###set the security information in the recv_frame */
union recv_frame *r8712_portctrl(struct _adapter *adapter,
				 union recv_frame *precv_frame)
{ … }

static sint recv_decache(union recv_frame *precv_frame, u8 bretry,
			 struct stainfo_rxcache *prxcache)
{ … }

static sint sta2sta_data_frame(struct _adapter *adapter,
			       union recv_frame *precv_frame,
			       struct sta_info **psta)
{ … }

static sint ap2sta_data_frame(struct _adapter *adapter,
			      union recv_frame *precv_frame,
			      struct sta_info **psta)
{ … }

static sint sta2ap_data_frame(struct _adapter *adapter,
			      union recv_frame *precv_frame,
			      struct sta_info **psta)
{ … }

static sint validate_recv_ctrl_frame(struct _adapter *adapter,
				     union recv_frame *precv_frame)
{ … }

static sint validate_recv_mgnt_frame(struct _adapter *adapter,
				     union recv_frame *precv_frame)
{ … }

static sint validate_recv_data_frame(struct _adapter *adapter,
				     union recv_frame *precv_frame)
{ … }

sint r8712_validate_recv_frame(struct _adapter *adapter,
			       union recv_frame *precv_frame)
{ … }

int r8712_wlanhdr_to_ethhdr(union recv_frame *precvframe)
{ … }

void r8712_recv_entry(union recv_frame *precvframe)
{ … }