cregit-Linux how code gets into the kernel

Release 4.7 drivers/staging/rtl8723au/include/sta_info.h

/******************************************************************************
 *
 * 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.
 *
 ******************************************************************************/
#ifndef __STA_INFO_H_

#define __STA_INFO_H_

#include <osdep_service.h>
#include <drv_types.h>
#include <wifi.h>


#define IBSS_START_MAC_ID	2

#define NUM_STA 32

#define NUM_ACL 16


/* if mode ==0, then the sta is allowed once the addr is hit. */
/* if mode ==1, then the sta is rejected once the addr is non-hit. */

struct rtw_wlan_acl_node {
	
struct list_head	list;
	
u8       addr[ETH_ALEN];
	
u8       valid;
};

/* mode=0, disable */
/* mode=1, accept unless in deny list */
/* mode=2, deny unless in accept list */

struct wlan_acl_pool {
	
int mode;
	
int num;
	
struct rtw_wlan_acl_node aclnode[NUM_ACL];
	
struct rtw_queue	acl_node_q;
};


struct rssi_sta  {
	
s32	UndecoratedSmoothedPWDB;
	
s32	UndecoratedSmoothedCCK;
	
s32	UndecoratedSmoothedOFDM;
	
u64	PacketMap;
	
u8	ValidBit;
};


struct	stainfo_stats	{
	
u64 rx_mgnt_pkts;
		
u64 rx_beacon_pkts;
		
u64 rx_probereq_pkts;
		
u64 rx_probersp_pkts;
		
u64 rx_probersp_bm_pkts;
		
u64 rx_probersp_uo_pkts;
	
u64 rx_ctrl_pkts;
	
u64 rx_data_pkts;

	
u64	last_rx_mgnt_pkts;
		
u64 last_rx_beacon_pkts;
		
u64 last_rx_probereq_pkts;
		
u64 last_rx_probersp_pkts;
		
u64 last_rx_probersp_bm_pkts;
		
u64 last_rx_probersp_uo_pkts;
	
u64	last_rx_ctrl_pkts;
	
u64	last_rx_data_pkts;

	
u64	rx_bytes;
	
u64	rx_drops;

	
u64	tx_pkts;
	
u64	tx_bytes;
	
u64  tx_drops;

};


struct sta_info {
	
spinlock_t	lock;
	
struct list_head	list; /* free_sta_queue */
	
struct list_head	hash_list; /* sta_hash */
	
struct rtw_adapter *padapter;

	
struct sta_xmit_priv sta_xmitpriv;
	
struct sta_recv_priv sta_recvpriv;

	
struct rtw_queue sleep_q;
	
unsigned int sleepq_len;

	
uint state;
	
uint aid;
	
uint mac_id;
	
uint qos_option;
	
u8	hwaddr[ETH_ALEN];

	
uint	ieee8021x_blocked;	/* 0: allowed, 1:blocked */
	
u32	dot118021XPrivacy; /* aes, tkip... */
	
union Keytype	dot11tkiptxmickey;
	
union Keytype	dot11tkiprxmickey;
	
union Keytype	dot118021x_UncstKey;
	
union pn48		dot11txpn;			/*  PN48 used for Unicast xmit. */
	
union pn48		dot11rxpn;			/*  PN48 used for Unicast recv. */


	
u8	bssrateset[16];
	
u32	bssratelen;
	
s32  rssi;
	
s32	signal_quality;

	
u8	cts2self;
	
u8	rtsen;

	
u8	raid;
	
u8	init_rate;
	
u32	ra_mask;
	
u8	wireless_mode;	/*  NETWORK_TYPE */
	
struct stainfo_stats sta_stats;

	/* for A-MPDU TX, ADDBA timeout check */
	
struct timer_list addba_retry_timer;

	/* for A-MPDU Rx reordering buffer control */
	
struct recv_reorder_ctrl recvreorder_ctrl[16];

	/* for A-MPDU Tx */
	/* unsigned char                ampdu_txen_bitmap; */
	
u16	BA_starting_seqctrl[16];

	
struct ht_priv	htpriv;

	/* Notes: */
	/* STA_Mode: */
	/* curr_network(mlme_priv/security_priv/qos/ht) + sta_info: (STA & AP) CAP/INFO */
	/* scan_q: AP CAP/INFO */

	/* AP_Mode: */
	/* curr_network(mlme_priv/security_priv/qos/ht) : AP CAP/INFO */
	/* sta_info: (AP & STA) CAP/INFO */

	
struct list_head asoc_list;
	
struct list_head auth_list;

	
unsigned int expire_to;
	
unsigned int auth_seq;
	
unsigned int authalg;
	
unsigned char chg_txt[128];

	
u16 capability;
	
int flags;

	
int dot8021xalg;/* 0:disable, 1:psk, 2:802.1x */
	
int wpa_psk;/* 0:disable, bit(0): WPA, bit(1):WPA2 */
	
int wpa_group_cipher;
	
int wpa2_group_cipher;
	
int wpa_pairwise_cipher;
	
int wpa2_pairwise_cipher;

	
u8 bpairwise_key_installed;

	
u8 wpa_ie[32];

	
u8 nonerp_set;
	
u8 no_short_slot_time_set;
	
u8 no_short_preamble_set;
	
u8 no_ht_gf_set;
	
u8 no_ht_set;
	
u8 ht_20mhz_set;

	
unsigned int tx_ra_bitmap;
	
u8 qos_info;

	
u8 max_sp_len;
	
u8 uapsd_bk;/* BIT(0): Delivery enabled, BIT(1): Trigger enabled */
	
u8 uapsd_be;
	
u8 uapsd_vi;
	
u8 uapsd_vo;

	
u8 has_legacy_ac;
	
unsigned int sleepq_ac_len;

	/* p2p priv data */
	
u8 is_p2p_device;
	
u8 p2p_status_code;

	
u8 keep_alive_trycnt;

	/* p2p client info */
	
u8 dev_addr[ETH_ALEN];
	
u8 dev_cap;
	
u16 config_methods;
	
u8 primary_dev_type[8];
	
u8 num_of_secdev_type;
	
u8 secdev_types_list[32];/*  32/8 == 4; */
	
u16 dev_name_len;
	
u8 dev_name[32];
	
u8 *passoc_req;
	
u32 assoc_req_len;

	/* for DM */
	
struct rssi_sta	 rssi_stat;

	/*  */
	/*  ================ODM Relative Info======================= */
	/*  Please be care, dont declare too much structure here. It will cost memory * STA support num. */
	/*  */
	/*  */
	/*  2011/10/20 MH Add for ODM STA info. */
	/*  */
	/*  Driver Write */
	
u8		bValid;				/*  record the sta status link or not? */
	
u8		rssi_level;			/* for Refresh RA mask */
	/*  ODM Write */
	/* 1 PHY_STATUS_INFO */
	
u8		RSSI_Path[4];		/*  */
	
u8		RSSI_Ave;
	
u8		RXEVM[4];
	
u8		RXSNR[4];

	/*  ODM Write */
	/* 1 TX_INFO (may changed by IC) */
	/*  ================ODM Relative Info======================= */
	/*  */

	/* To store the sequence number of received management frame */
	
u16 RxMgmtFrameSeqNum;
};


#define sta_rx_pkts(sta) \
	(sta->sta_stats.rx_mgnt_pkts \
        + sta->sta_stats.rx_ctrl_pkts \
        + sta->sta_stats.rx_data_pkts)


#define sta_last_rx_pkts(sta) \
	(sta->sta_stats.last_rx_mgnt_pkts \
        + sta->sta_stats.last_rx_ctrl_pkts \
        + sta->sta_stats.last_rx_data_pkts)


#define sta_rx_data_pkts(sta) \
	(sta->sta_stats.rx_data_pkts)


#define sta_last_rx_data_pkts(sta) \
	(sta->sta_stats.last_rx_data_pkts)


#define sta_rx_mgnt_pkts(sta) \
	(sta->sta_stats.rx_mgnt_pkts)


#define sta_last_rx_mgnt_pkts(sta) \
	(sta->sta_stats.last_rx_mgnt_pkts)


#define sta_rx_beacon_pkts(sta) \
	(sta->sta_stats.rx_beacon_pkts)


#define sta_last_rx_beacon_pkts(sta) \
	(sta->sta_stats.last_rx_beacon_pkts)


#define sta_rx_probereq_pkts(sta) \
	(sta->sta_stats.rx_probereq_pkts)


#define sta_last_rx_probereq_pkts(sta) \
	(sta->sta_stats.last_rx_probereq_pkts)


#define sta_rx_probersp_pkts(sta) \
	(sta->sta_stats.rx_probersp_pkts)


#define sta_last_rx_probersp_pkts(sta) \
	(sta->sta_stats.last_rx_probersp_pkts)


#define sta_rx_probersp_bm_pkts(sta) \
	(sta->sta_stats.rx_probersp_bm_pkts)


#define sta_last_rx_probersp_bm_pkts(sta) \
	(sta->sta_stats.last_rx_probersp_bm_pkts)


#define sta_rx_probersp_uo_pkts(sta) \
	(sta->sta_stats.rx_probersp_uo_pkts)


#define sta_last_rx_probersp_uo_pkts(sta) \
	(sta->sta_stats.last_rx_probersp_uo_pkts)


#define sta_update_last_rx_pkts(sta) \
	do { \
                sta->sta_stats.last_rx_mgnt_pkts = sta->sta_stats.rx_mgnt_pkts; \
                sta->sta_stats.last_rx_beacon_pkts = sta->sta_stats.rx_beacon_pkts; \
                sta->sta_stats.last_rx_probereq_pkts = sta->sta_stats.rx_probereq_pkts; \
                sta->sta_stats.last_rx_probersp_pkts = sta->sta_stats.rx_probersp_pkts; \
                sta->sta_stats.last_rx_probersp_bm_pkts = sta->sta_stats.rx_probersp_bm_pkts; \
                sta->sta_stats.last_rx_probersp_uo_pkts = sta->sta_stats.rx_probersp_uo_pkts; \
                sta->sta_stats.last_rx_ctrl_pkts = sta->sta_stats.rx_ctrl_pkts; \
                sta->sta_stats.last_rx_data_pkts = sta->sta_stats.rx_data_pkts; \
        } while (0)


#define STA_RX_PKTS_ARG(sta) \
	sta->sta_stats.rx_mgnt_pkts \
        , sta->sta_stats.rx_ctrl_pkts \
        , sta->sta_stats.rx_data_pkts


#define STA_LAST_RX_PKTS_ARG(sta) \
	sta->sta_stats.last_rx_mgnt_pkts, \
        sta->sta_stats.last_rx_ctrl_pkts, \
        sta->sta_stats.last_rx_data_pkts


#define STA_RX_PKTS_DIFF_ARG(sta) \
	sta->sta_stats.rx_mgnt_pkts - sta->sta_stats.last_rx_mgnt_pkts, \
        sta->sta_stats.rx_ctrl_pkts - sta->sta_stats.last_rx_ctrl_pkts, \
        sta->sta_stats.rx_data_pkts - sta->sta_stats.last_rx_data_pkts


#define STA_PKTS_FMT "(m:%llu, c:%llu, d:%llu)"


struct sta_priv {
	
spinlock_t sta_hash_lock;
	
struct list_head sta_hash[NUM_STA];
	
int asoc_sta_count;

	
struct rtw_adapter *padapter;
	
struct list_head asoc_list;
	
struct list_head auth_list;
	
spinlock_t asoc_list_lock;
	
spinlock_t auth_list_lock;
	
u8 asoc_list_cnt;
	
u8 auth_list_cnt;

	
unsigned int auth_to;  /* sec, time to expire in authenticating. */
	
unsigned int assoc_to; /* sec, time to expire before associating. */
	
unsigned int expire_to; /* sec , time to expire after associated. */

	/* pointers to STA info; based on allocated AID or NULL if AID free
         * AID is in the range 1-2007, so sta_aid[0] corresponders to AID 1
         * and so on
         */
	
struct sta_info *sta_aid[NUM_STA];

	
u16 sta_dz_bitmap;/* only support 15 stations, station aid bitmap
                           * for sleeping sta. */
	
u16 tim_bitmap;/* only support 15 stations,
                        * aid=0~15 mapping bit0~bit15 */

	
u16 max_num_sta;

	
struct wlan_acl_pool acl_list;
};


static inline u32 wifi_mac_hash(const u8 *mac) { u32 x; x = mac[0]; x = (x << 2) ^ mac[1]; x = (x << 2) ^ mac[2]; x = (x << 2) ^ mac[3]; x = (x << 2) ^ mac[4]; x = (x << 2) ^ mac[5]; x ^= x >> 8; x = x & (NUM_STA - 1); return x; }

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int _rtw_init_sta_priv23a(struct sta_priv *pstapriv); int _rtw_free_sta_priv23a(struct sta_priv *pstapriv); struct sta_info *rtw_alloc_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr, gfp_t gfp); int rtw_free_stainfo23a(struct rtw_adapter *padapter, struct sta_info *psta); void rtw_free_all_stainfo23a(struct rtw_adapter *padapter); struct sta_info *rtw_get_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr); int rtw_init_bcmc_stainfo23a(struct rtw_adapter *padapter); struct sta_info *rtw_get_bcmc_stainfo23a(struct rtw_adapter *padapter); bool rtw_access_ctrl23a(struct rtw_adapter *padapter, u8 *mac_addr); #endif /* _STA_INFO_H_ */

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