/* SPDX-License-Identifier: GPL-2.0 */
/******************************************************************************
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 *
 ******************************************************************************/
#ifndef __STA_INFO_H_
#define __STA_INFO_H_

#define IBSS_START_MAC_ID	2
#define NUM_STA MACID_NUM_SW_LIMIT



#define NUM_ACL 16
#define RTW_ACL_MODE_DISABLED				0
#define RTW_ACL_MODE_ACCEPT_UNLESS_LISTED	1
#define RTW_ACL_MODE_DENY_UNLESS_LISTED		2
#define RTW_ACL_MODE_MAX					3

extern const char *const _acl_mode_str[];
#define acl_mode_str(mode) (((mode) >= RTW_ACL_MODE_MAX) ? _acl_mode_str[RTW_ACL_MODE_DISABLED] : _acl_mode_str[(mode)])

#ifndef RTW_PRE_LINK_STA_NUM
	#define RTW_PRE_LINK_STA_NUM 8
#endif

struct pre_link_sta_node_t {
	u8 valid;
	u8 addr[ETH_ALEN];
};

struct pre_link_sta_ctl_t {
	_lock lock;
	u8 num;
	struct pre_link_sta_node_t node[RTW_PRE_LINK_STA_NUM];
};

enum sta_info_update_type {
	STA_INFO_UPDATE_NONE = 0,
	STA_INFO_UPDATE_BW = BIT(0),
	STA_INFO_UPDATE_RATE = BIT(1),
	STA_INFO_UPDATE_PROTECTION_MODE = BIT(2),
	STA_INFO_UPDATE_CAP = BIT(3),
	STA_INFO_UPDATE_HT_CAP = BIT(4),
	STA_INFO_UPDATE_VHT_CAP = BIT(5),
	STA_INFO_UPDATE_ALL = STA_INFO_UPDATE_BW
			      | STA_INFO_UPDATE_RATE
			      | STA_INFO_UPDATE_PROTECTION_MODE
			      | STA_INFO_UPDATE_CAP
			      | STA_INFO_UPDATE_HT_CAP
			      | STA_INFO_UPDATE_VHT_CAP,
	STA_INFO_UPDATE_MAX
};

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

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

typedef struct _RSSI_STA {

	s32 undecorated_smoothed_pwdb;
	s32 undecorated_smoothed_cck;
	s32 undecorated_smoothed_ofdm;
	u8 ofdm_pkt;
	u8 cck_pkt;
	u16 cck_sum_power;
	u8 is_send_rssi;
	u64 packet_map;
	u8 valid_bit;
} RSSI_STA, *PRSSI_STA;

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 rx_data_last_pkts;		/* For Read & Clear requirement in proc_get_rx_stat() */
	u64 rx_data_qos_pkts[TID_NUM];
	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 last_rx_data_qos_pkts[TID_NUM];
	u64	rx_bytes;
	u64	rx_drops;

	u64	tx_pkts;
	u64	tx_bytes;
	u64  tx_drops;

	u32 duplicate_cnt;	/* Read & Clear, in proc_get_rx_stat() */
	u32 rxratecnt[128];	/* Read & Clear, in proc_get_rx_stat() */
	u32 tx_ok_cnt;		/* Read & Clear, in proc_get_tx_stat() */
	u32 tx_fail_cnt;	/* Read & Clear, in proc_get_tx_stat() */
	u32 tx_retry_cnt;	/* Read & Clear, in proc_get_tx_stat() */
};

#ifndef DBG_SESSION_TRACKER
#define DBG_SESSION_TRACKER 0
#endif

/* session tracker status */
#define ST_STATUS_NONE		0
#define ST_STATUS_CHECK		BIT0
#define ST_STATUS_ESTABLISH	BIT1
#define ST_STATUS_EXPIRE	BIT2

#define ST_EXPIRE_MS (10 * 1000)

struct session_tracker {
	_list list; /* session_tracker_queue */
	u32 local_naddr;
	u16 local_port;
	u32 remote_naddr;
	u16 remote_port;
	u32 set_time;
	u8 status;
};

/* session tracker cmd */
#define ST_CMD_ADD 0
#define ST_CMD_DEL 1
#define ST_CMD_CHK 2

struct st_cmd_parm {
	u8 cmd;
	struct sta_info *sta;
	u32 local_naddr; /* TODO: IPV6 */
	u16 local_port;
	u32 remote_naddr; /* TODO: IPV6 */
	u16 remote_port;
};

typedef bool (*st_match_rule)(_adapter *adapter, u8 *local_naddr, u8 *local_port, u8 *remote_naddr, u8 *remote_port);

struct st_register {
	u8 s_proto;
	st_match_rule rule;
};

#define SESSION_TRACKER_REG_ID_WFD 0
#define SESSION_TRACKER_REG_ID_NUM 1

struct st_ctl_t {
	struct st_register reg[SESSION_TRACKER_REG_ID_NUM];
	_queue tracker_q;
};

void rtw_st_ctl_init(struct st_ctl_t *st_ctl);
void rtw_st_ctl_deinit(struct st_ctl_t *st_ctl);
void rtw_st_ctl_register(struct st_ctl_t *st_ctl, u8 st_reg_id, struct st_register *reg);
void rtw_st_ctl_unregister(struct st_ctl_t *st_ctl, u8 st_reg_id);
bool rtw_st_ctl_chk_reg_s_proto(struct st_ctl_t *st_ctl, u8 s_proto);
bool rtw_st_ctl_chk_reg_rule(struct st_ctl_t *st_ctl, _adapter *adapter, u8 *local_naddr, u8 *local_port, u8 *remote_naddr, u8 *remote_port);
void dump_st_ctl(void *sel, struct st_ctl_t *st_ctl);


struct sta_info {

	_lock	lock;
	_list	list; /* free_sta_queue */
	_list	hash_list; /* sta_hash */
	/* _list asoc_list; */ /* 20061114 */
	/* _list sleep_list; */ /* sleep_q */
	/* _list wakeup_list; */ /* wakeup_q */
	_adapter *padapter;

	struct sta_xmit_priv sta_xmitpriv;
	struct sta_recv_priv sta_recvpriv;

	_queue sleep_q;
	unsigned int sleepq_len;

	uint state;
	uint aid;
	uint mac_id;
	uint qos_option;
	u8	hwaddr[ETH_ALEN];
	u16 hwseq;
	u8	ra_rpt_linked;

	uint	ieee8021x_blocked;	/* 0: allowed, 1:blocked */
	uint	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;
	u64	ra_mask;
	u8	wireless_mode;	/* NETWORK_TYPE */
	u8	bw_mode;

	u8	ldpc;
	u8	stbc;


	struct stainfo_stats sta_stats;

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

	/* for A-MPDU Rx reordering buffer control */
	struct recv_reorder_ctrl recvreorder_ctrl[TID_NUM];
	ATOMIC_T continual_no_rx_packet[TID_NUM];
	/* for A-MPDU Tx */
	/* unsigned char		ampdu_txen_bitmap; */
	u16	BA_starting_seqctrl[16];

	struct ht_priv	htpriv;

	struct vht_priv	vhtpriv;

	/* 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 */

	unsigned int expire_to;


	_list asoc_list;
	_list auth_list;

	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;
	u8 ht_40mhz_intolerant;


	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;

	/* p2p client info */
	u8 dev_addr[ETH_ALEN];
	/* u8 iface_addr[ETH_ALEN]; */ /* = hwaddr[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 op_wfd_mode;

	u8 under_exist_checking;

	u8 keep_alive_trycnt;




	/* for DM */
	RSSI_STA	 rssi_stat;

	/* ODM_STA_INFO_T */
	/* ================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		WirelessMode;		 */ /* */
	u8		IOTPeer;			/* Enum value.	HT_IOT_PEER_E */
	/* ODM Write */
	/* 1 PHY_STATUS_INFO */
	u8		RSSI_Path[4];		/*  */
	u8		RSSI_Ave;
	u8		RXEVM[4];
	u8		RXSNR[4];

	u8		rssi_level;			/* for Refresh RA mask */
	/* ODM Write */
	/* 1 TX_INFO (may changed by IC) */
	/* TX_INFO_T		pTxInfo;				 */ /* Define in IC folder. Move lower layer. */
	/*  */
	/* ================ODM Relative Info======================= */
	/*  */

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

	struct st_ctl_t st_ctl;
	u8 max_agg_num_minimal_record; /*keep minimal tx desc max_agg_num setting*/
};

#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_rx_data_qos_pkts(sta, i) \
	(sta->sta_stats.rx_data_qos_pkts[i])

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

#define sta_last_rx_data_qos_pkts(sta, i) \
	(sta->sta_stats.last_rx_data_qos_pkts[i])

#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)"

#define STA_OP_WFD_MODE(sta) (sta)->op_wfd_mode
#define STA_SET_OP_WFD_MODE(sta, mode) (sta)->op_wfd_mode = (mode)

struct	sta_priv {

	u8 *pallocated_stainfo_buf;
	u8 *pstainfo_buf;
	_queue	free_sta_queue;

	_lock sta_hash_lock;
	_list   sta_hash[NUM_STA];
	int asoc_sta_count;
	_queue sleep_q;
	_queue wakeup_q;

	_adapter *padapter;

	u32 adhoc_expire_to;

	_list asoc_list;
	_list auth_list;
	_lock asoc_list_lock;
	_lock 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, staion 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;



	struct sta_info *c2h_sta;
	struct submit_ctx *gotc2h;
};

__inline static u32 wifi_mac_hash(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;
}

extern u32	_rtw_init_sta_priv(struct sta_priv *pstapriv);
extern u32	_rtw_free_sta_priv(struct sta_priv *pstapriv);

#define stainfo_offset_valid(offset) (offset < NUM_STA && offset >= 0)
int rtw_stainfo_offset(struct sta_priv *stapriv, struct sta_info *sta);
struct sta_info *rtw_get_stainfo_by_offset(struct sta_priv *stapriv, int offset);

extern struct sta_info *rtw_alloc_stainfo(struct	sta_priv *pstapriv, u8 *hwaddr);
extern u32	rtw_free_stainfo(_adapter *padapter , struct sta_info *psta);
extern void rtw_free_all_stainfo(_adapter *padapter);
extern struct sta_info *rtw_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr);
extern u32 rtw_init_bcmc_stainfo(_adapter *padapter);
extern struct sta_info *rtw_get_bcmc_stainfo(_adapter *padapter);

extern u8 rtw_access_ctrl(_adapter *adapter, u8 *mac_addr);
void dump_macaddr_acl(void *sel, _adapter *adapter);

bool rtw_is_pre_link_sta(struct sta_priv *stapriv, u8 *addr);

#endif /* _STA_INFO_H_ */
