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 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /* Copyright(c) 2007 - 2011 Realtek Corporation. */
 
 #ifndef __IEEE80211_H
 #define __IEEE80211_H
 
 #include "osdep_service.h"
 #include "drv_types.h"
 #include "wifi.h"
 #include <linux/wireless.h>
 
 #define MGMT_QUEUE_NUM 5
 
 #define ETH_TYPE_LEN        2
 #define PAYLOAD_TYPE_LEN    1
 
 #define RTL_IOCTL_HOSTAPD (SIOCIWFIRSTPRIV + 28)
 
 /* STA flags */
 #define WLAN_STA_AUTH BIT(0)
 #define WLAN_STA_ASSOC BIT(1)
 #define WLAN_STA_PS BIT(2)
 #define WLAN_STA_TIM BIT(3)
 #define WLAN_STA_PERM BIT(4)
 #define WLAN_STA_AUTHORIZED BIT(5)
 #define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
 #define WLAN_STA_SHORT_PREAMBLE BIT(7)
 #define WLAN_STA_PREAUTH BIT(8)
 #define WLAN_STA_WME BIT(9)
 #define WLAN_STA_MFP BIT(10)
 #define WLAN_STA_HT BIT(11)
 #define WLAN_STA_WPS BIT(12)
 #define WLAN_STA_MAYBE_WPS BIT(13)
 #define WLAN_STA_NONERP BIT(31)
 
 #define IEEE_CMD_SET_WPA_PARAM          1
 #define IEEE_CMD_SET_WPA_IE             2
 #define IEEE_CMD_SET_ENCRYPTION         3
 #define IEEE_CMD_MLME                       4
 
 #define IEEE_PARAM_WPA_ENABLED              1
 #define IEEE_PARAM_TKIP_COUNTERMEASURES     2
 #define IEEE_PARAM_DROP_UNENCRYPTED         3
 #define IEEE_PARAM_PRIVACY_INVOKED          4
 #define IEEE_PARAM_AUTH_ALGS                    5
 #define IEEE_PARAM_IEEE_802_1X              6
 #define IEEE_PARAM_WPAX_SELECT              7
 
 #define AUTH_ALG_OPEN_SYSTEM            0x1
 #define AUTH_ALG_SHARED_KEY         0x2
 #define AUTH_ALG_LEAP               0x00000004
 
 #define IEEE_MLME_STA_DEAUTH                1
 #define IEEE_MLME_STA_DISASSOC          2
 
 #define IEEE_CRYPT_ERR_UNKNOWN_ALG          2
 #define IEEE_CRYPT_ERR_UNKNOWN_ADDR         3
 #define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED        4
 #define IEEE_CRYPT_ERR_KEY_SET_FAILED           5
 #define IEEE_CRYPT_ERR_TX_KEY_SET_FAILED        6
 #define IEEE_CRYPT_ERR_CARD_CONF_FAILED     7
 
 #define IEEE_CRYPT_ALG_NAME_LEN         16
 
 #define WPA_CIPHER_NONE     BIT(0)
 #define WPA_CIPHER_WEP40    BIT(1)
 #define WPA_CIPHER_WEP104 BIT(2)
 #define WPA_CIPHER_TKIP     BIT(3)
 #define WPA_CIPHER_CCMP     BIT(4)
 
 
 #define WPA_SELECTOR_LEN 4
 extern u8 RTW_WPA_OUI_TYPE[];
 extern u16 RTW_WPA_VERSION;
 extern u8 WPA_AUTH_KEY_MGMT_NONE[];
 extern u8 WPA_AUTH_KEY_MGMT_UNSPEC_802_1X[];
 extern u8 WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X[];
 extern u8 WPA_CIPHER_SUITE_NONE[];
 extern u8 WPA_CIPHER_SUITE_WEP40[];
 extern u8 WPA_CIPHER_SUITE_TKIP[];
 extern u8 WPA_CIPHER_SUITE_WRAP[];
 extern u8 WPA_CIPHER_SUITE_CCMP[];
 extern u8 WPA_CIPHER_SUITE_WEP104[];
 
 #define RSN_HEADER_LEN 4
 #define RSN_SELECTOR_LEN 4
 
 extern u16 RSN_VERSION_BSD;
 extern u8 RSN_AUTH_KEY_MGMT_UNSPEC_802_1X[];
 extern u8 RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X[];
 extern u8 RSN_CIPHER_SUITE_NONE[];
 extern u8 RSN_CIPHER_SUITE_WEP40[];
 extern u8 RSN_CIPHER_SUITE_TKIP[];
 extern u8 RSN_CIPHER_SUITE_WRAP[];
 extern u8 RSN_CIPHER_SUITE_CCMP[];
 extern u8 RSN_CIPHER_SUITE_WEP104[];
 
 enum ratr_table_mode {
     RATR_INX_WIRELESS_NGB = 0,  /*  BGN 40 Mhz 2SS 1SS */
     RATR_INX_WIRELESS_NG = 1,   /*  GN or N */
     RATR_INX_WIRELESS_NB = 2,   /*  BGN 20 Mhz 2SS 1SS  or BN */
     RATR_INX_WIRELESS_N = 3,
     RATR_INX_WIRELESS_GB = 4,
     RATR_INX_WIRELESS_G = 5,
     RATR_INX_WIRELESS_B = 6,
     RATR_INX_WIRELESS_MC = 7,
     RATR_INX_WIRELESS_AC_N = 8,
 };
 
 enum NETWORK_TYPE {
     WIRELESS_INVALID = 0,
     /* Sub-Element */
     WIRELESS_11B = BIT(0), /* tx:cck only, rx:cck only, hw: cck */
     WIRELESS_11G = BIT(1), /* tx:ofdm only, rx:ofdm & cck, hw:cck & ofdm*/
     WIRELESS_11_24N = BIT(3), /* tx:MCS only, rx:MCS & cck, hw:MCS & cck */
 
     /* Combination */
     /*  tx: cck & ofdm, rx: cck & ofdm & MCS, hw: cck & ofdm */
     WIRELESS_11BG = (WIRELESS_11B | WIRELESS_11G),
     /*  tx: ofdm & MCS, rx: ofdm & cck & MCS, hw: cck & ofdm */
     WIRELESS_11G_24N = (WIRELESS_11G | WIRELESS_11_24N),
     /*  tx: ofdm & cck & MCS, rx: ofdm & cck & MCS, hw: ofdm & cck */
     WIRELESS_11BG_24N = (WIRELESS_11B | WIRELESS_11G | WIRELESS_11_24N),
 };
 
 struct ieee_param {
     u32 cmd;
     u8 sta_addr[ETH_ALEN];
     union {
         struct {
             u8 name;
             u32 value;
         } wpa_param;
         struct {
             u32 len;
             u8 reserved[32];
             u8 data[];
         } wpa_ie;
         struct {
             int command;
             int reason_code;
         } mlme;
         struct {
             u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
             u8 set_tx;
             u32 err;
             u8 idx;
             u8 seq[8]; /* sequence counter (set: RX, get: TX) */
             u16 key_len;
             u8 key[];
         } crypt;
         struct {
             u16 aid;
             u16 capability;
             int flags;
             u8 tx_supp_rates[16];
             struct ieee80211_ht_cap ht_cap;
         } add_sta;
         struct {
             u8  reserved[2];/* for set max_num_sta */
             u8  buf[];
         } bcn_ie;
     } u;
 };
 
 #define IEEE80211_DATA_LEN      2304
 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
    6.2.1.1.2.
 
    The figure in section 7.1.2 suggests a body size of up to 2312
    bytes is allowed, which is a bit confusing, I suspect this
    represents the 2304 bytes of real data, plus a possible 8 bytes of
    WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
 
 #define IEEE80211_HLEN          30
 #define IEEE80211_FRAME_LEN     (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 
 /* this is stolen from ipw2200 driver */
 #define IEEE_IBSS_MAC_HASH_SIZE 31
 
 #define IEEE80211_3ADDR_LEN 24
 #define IEEE80211_4ADDR_LEN 30
 #define IEEE80211_FCS_LEN    4
 
 #define MIN_FRAG_THRESHOLD     256U
 #define MAX_FRAG_THRESHOLD     2346U
 
 /* Frame control field constants */
 #define RTW_IEEE80211_FCTL_VERS     0x0003
 #define RTW_IEEE80211_FCTL_FTYPE    0x000c
 #define RTW_IEEE80211_FCTL_STYPE    0x00f0
 #define RTW_IEEE80211_FCTL_TODS     0x0100
 #define RTW_IEEE80211_FCTL_FROMDS   0x0200
 #define RTW_IEEE80211_FCTL_MOREFRAGS    0x0400
 #define RTW_IEEE80211_FCTL_RETRY    0x0800
 #define RTW_IEEE80211_FCTL_PM       0x1000
 #define RTW_IEEE80211_FCTL_MOREDATA 0x2000
 #define RTW_IEEE80211_FCTL_PROTECTED    0x4000
 #define RTW_IEEE80211_FCTL_ORDER    0x8000
 #define RTW_IEEE80211_FCTL_CTL_EXT  0x0f00
 
 #define RTW_IEEE80211_FTYPE_MGMT    0x0000
 #define RTW_IEEE80211_FTYPE_CTL     0x0004
 #define RTW_IEEE80211_FTYPE_DATA    0x0008
 #define RTW_IEEE80211_FTYPE_EXT     0x000c
 
 /* management */
 #define RTW_IEEE80211_STYPE_ASSOC_REQ   0x0000
 #define RTW_IEEE80211_STYPE_ASSOC_RESP  0x0010
 #define RTW_IEEE80211_STYPE_REASSOC_REQ 0x0020
 #define RTW_IEEE80211_STYPE_REASSOC_RESP    0x0030
 #define RTW_IEEE80211_STYPE_PROBE_REQ   0x0040
 #define RTW_IEEE80211_STYPE_PROBE_RESP  0x0050
 #define RTW_IEEE80211_STYPE_BEACON  0x0080
 #define RTW_IEEE80211_STYPE_ATIM    0x0090
 #define RTW_IEEE80211_STYPE_DISASSOC    0x00A0
 #define RTW_IEEE80211_STYPE_AUTH    0x00B0
 #define RTW_IEEE80211_STYPE_DEAUTH  0x00C0
 #define RTW_IEEE80211_STYPE_ACTION  0x00D0
 
 /* control */
 #define RTW_IEEE80211_STYPE_CTL_EXT 0x0060
 #define RTW_IEEE80211_STYPE_BACK_REQ    0x0080
 #define RTW_IEEE80211_STYPE_BACK    0x0090
 #define RTW_IEEE80211_STYPE_PSPOLL  0x00A0
 #define RTW_IEEE80211_STYPE_RTS     0x00B0
 #define RTW_IEEE80211_STYPE_CTS     0x00C0
 #define RTW_IEEE80211_STYPE_ACK     0x00D0
 #define RTW_IEEE80211_STYPE_CFEND   0x00E0
 #define RTW_IEEE80211_STYPE_CFENDACK    0x00F0
 
 /* data */
 #define RTW_IEEE80211_STYPE_DATA    0x0000
 #define RTW_IEEE80211_STYPE_DATA_CFACK  0x0010
 #define RTW_IEEE80211_STYPE_DATA_CFPOLL 0x0020
 #define RTW_IEEE80211_STYPE_DATA_CFACKPOLL  0x0030
 #define RTW_IEEE80211_STYPE_NULLFUNC    0x0040
 #define RTW_IEEE80211_STYPE_CFACK   0x0050
 #define RTW_IEEE80211_STYPE_CFPOLL  0x0060
 #define RTW_IEEE80211_STYPE_CFACKPOLL   0x0070
 #define RTW_IEEE80211_STYPE_QOS_DATA    0x0080
 #define RTW_IEEE80211_STYPE_QOS_DATA_CFACK  0x0090
 #define RTW_IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
 #define RTW_IEEE80211_STYPE_QOS_DATA_CFACKPOLL  0x00B0
 #define RTW_IEEE80211_STYPE_QOS_NULLFUNC    0x00C0
 #define RTW_IEEE80211_STYPE_QOS_CFACK       0x00D0
 #define RTW_IEEE80211_STYPE_QOS_CFPOLL      0x00E0
 #define RTW_IEEE80211_STYPE_QOS_CFACKPOLL   0x00F0
 
 /* sequence control field */
 #define RTW_IEEE80211_SCTL_FRAG 0x000F
 #define RTW_IEEE80211_SCTL_SEQ  0xFFF0
 
 #define RTW_ERP_INFO_NON_ERP_PRESENT BIT(0)
 #define RTW_ERP_INFO_USE_PROTECTION BIT(1)
 #define RTW_ERP_INFO_BARKER_PREAMBLE_MODE BIT(2)
 
 /* QoS, QOS */
 #define NORMAL_ACK          0
 #define NO_ACK              1
 #define NON_EXPLICIT_ACK        2
 #define BLOCK_ACK           3
 
 #ifndef ETH_P_PAE
 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
 #endif /* ETH_P_PAE */
 
 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
 
 #define ETH_P_ECONET    0x0018
 
 #ifndef ETH_P_80211_RAW
 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
 #endif
 
 /* IEEE 802.11 defines */
 
 #define P80211_OUI_LEN 3
 
 struct ieee80211_snap_hdr {
     u8    dsap;   /* always 0xAA */
     u8    ssap;   /* always 0xAA */
     u8    ctrl;   /* always 0x03 */
     u8    oui[P80211_OUI_LEN];    /* organizational universal id */
 } __packed;
 
 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
 
 #define WLAN_FC_GET_TYPE(fc) ((fc) & RTW_IEEE80211_FCTL_FTYPE)
 #define WLAN_FC_GET_STYPE(fc) ((fc) & RTW_IEEE80211_FCTL_STYPE)
 
 #define WLAN_QC_GET_TID(qc) ((qc) & 0x0f)
 
 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & RTW_IEEE80211_SCTL_FRAG)
 #define WLAN_GET_SEQ_SEQ(seq)  ((seq) & RTW_IEEE80211_SCTL_SEQ)
 
 /* Authentication algorithms */
 #define WLAN_AUTH_OPEN 0
 #define WLAN_AUTH_SHARED_KEY 1
 
 #define WLAN_AUTH_CHALLENGE_LEN 128
 
 #define WLAN_CAPABILITY_BSS (1<<0)
 #define WLAN_CAPABILITY_IBSS (1<<1)
 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
 #define WLAN_CAPABILITY_PRIVACY (1<<4)
 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
 #define WLAN_CAPABILITY_PBCC (1<<6)
 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
 #define WLAN_CAPABILITY_SHORT_SLOT (1<<10)
 
 /* Status codes */
 #define WLAN_STATUS_SUCCESS 0
 #define WLAN_STATUS_UNSPECIFIED_FAILURE 1
 #define WLAN_STATUS_CAPS_UNSUPPORTED 10
 #define WLAN_STATUS_REASSOC_NO_ASSOC 11
 #define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12
 #define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13
 #define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14
 #define WLAN_STATUS_CHALLENGE_FAIL 15
 #define WLAN_STATUS_AUTH_TIMEOUT 16
 #define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17
 #define WLAN_STATUS_ASSOC_DENIED_RATES 18
 /* 802.11b */
 #define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19
 #define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20
 #define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21
 
 /* Reason codes */
 #define WLAN_REASON_UNSPECIFIED 1
 #define WLAN_REASON_PREV_AUTH_NOT_VALID 2
 #define WLAN_REASON_DEAUTH_LEAVING 3
 #define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4
 #define WLAN_REASON_DISASSOC_AP_BUSY 5
 #define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6
 #define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7
 #define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8
 #define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9
 #define WLAN_REASON_JOIN_WRONG_CHANNEL       65534
 #define WLAN_REASON_EXPIRATION_CHK 65535
 
 /* Information Element IDs */
 #define WLAN_EID_SSID 0
 #define WLAN_EID_SUPP_RATES 1
 #define WLAN_EID_FH_PARAMS 2
 #define WLAN_EID_DS_PARAMS 3
 #define WLAN_EID_CF_PARAMS 4
 #define WLAN_EID_TIM 5
 #define WLAN_EID_IBSS_PARAMS 6
 #define WLAN_EID_CHALLENGE 16
 /* EIDs defined by IEEE 802.11h - START */
 #define WLAN_EID_PWR_CONSTRAINT 32
 #define WLAN_EID_PWR_CAPABILITY 33
 #define WLAN_EID_TPC_REQUEST 34
 #define WLAN_EID_TPC_REPORT 35
 #define WLAN_EID_SUPPORTED_CHANNELS 36
 #define WLAN_EID_CHANNEL_SWITCH 37
 #define WLAN_EID_MEASURE_REQUEST 38
 #define WLAN_EID_MEASURE_REPORT 39
 #define WLAN_EID_QUITE 40
 #define WLAN_EID_IBSS_DFS 41
 /* EIDs defined by IEEE 802.11h - END */
 #define WLAN_EID_ERP_INFO 42
 #define WLAN_EID_HT_CAP 45
 #define WLAN_EID_RSN 48
 #define WLAN_EID_EXT_SUPP_RATES 50
 #define WLAN_EID_MOBILITY_DOMAIN 54
 #define WLAN_EID_FAST_BSS_TRANSITION 55
 #define WLAN_EID_TIMEOUT_INTERVAL 56
 #define WLAN_EID_RIC_DATA 57
 #define WLAN_EID_HT_OPERATION 61
 #define WLAN_EID_SECONDARY_CHANNEL_OFFSET 62
 #define WLAN_EID_20_40_BSS_COEXISTENCE 72
 #define WLAN_EID_20_40_BSS_INTOLERANT 73
 #define WLAN_EID_OVERLAPPING_BSS_SCAN_PARAMS 74
 #define WLAN_EID_MMIE 76
 #define WLAN_EID_VENDOR_SPECIFIC 221
 #define WLAN_EID_GENERIC (WLAN_EID_VENDOR_SPECIFIC)
 
 #define IEEE80211_MGMT_HDR_LEN 24
 #define IEEE80211_DATA_HDR3_LEN 24
 #define IEEE80211_DATA_HDR4_LEN 30
 
 #define IEEE80211_STATMASK_SIGNAL (1<<0)
 #define IEEE80211_STATMASK_RSSI (1<<1)
 #define IEEE80211_STATMASK_NOISE (1<<2)
 #define IEEE80211_STATMASK_RATE (1<<3)
 #define IEEE80211_STATMASK_WEMASK 0x7
 
 #define IEEE80211_CCK_MODULATION    (1<<0)
 #define IEEE80211_OFDM_MODULATION   (1<<1)
 
 #define IEEE80211_24GHZ_BAND     (1<<0)
 #define IEEE80211_52GHZ_BAND     (1<<1)
 
 #define IEEE80211_CCK_RATE_LEN          4
 #define IEEE80211_NUM_OFDM_RATESLEN 8
 
 #define IEEE80211_CCK_RATE_1MB          0x02
 #define IEEE80211_CCK_RATE_2MB          0x04
 #define IEEE80211_CCK_RATE_5MB          0x0B
 #define IEEE80211_CCK_RATE_11MB         0x16
 #define IEEE80211_OFDM_RATE_LEN         8
 #define IEEE80211_OFDM_RATE_6MB         0x0C
 #define IEEE80211_OFDM_RATE_9MB         0x12
 #define IEEE80211_OFDM_RATE_12MB        0x18
 #define IEEE80211_OFDM_RATE_18MB        0x24
 #define IEEE80211_OFDM_RATE_24MB        0x30
 #define IEEE80211_OFDM_RATE_36MB        0x48
 #define IEEE80211_OFDM_RATE_48MB        0x60
 #define IEEE80211_OFDM_RATE_54MB        0x6C
 #define IEEE80211_BASIC_RATE_MASK       0x80
 
 #define IEEE80211_CCK_RATE_1MB_MASK     (1<<0)
 #define IEEE80211_CCK_RATE_2MB_MASK     (1<<1)
 #define IEEE80211_CCK_RATE_5MB_MASK     (1<<2)
 #define IEEE80211_CCK_RATE_11MB_MASK        (1<<3)
 #define IEEE80211_OFDM_RATE_6MB_MASK        (1<<4)
 #define IEEE80211_OFDM_RATE_9MB_MASK        (1<<5)
 #define IEEE80211_OFDM_RATE_12MB_MASK       (1<<6)
 #define IEEE80211_OFDM_RATE_18MB_MASK       (1<<7)
 #define IEEE80211_OFDM_RATE_24MB_MASK       (1<<8)
 #define IEEE80211_OFDM_RATE_36MB_MASK       (1<<9)
 #define IEEE80211_OFDM_RATE_48MB_MASK       (1<<10)
 #define IEEE80211_OFDM_RATE_54MB_MASK       (1<<11)
 
 #define IEEE80211_CCK_RATES_MASK        0x0000000F
 #define IEEE80211_CCK_BASIC_RATES_MASK  (IEEE80211_CCK_RATE_1MB_MASK | \
     IEEE80211_CCK_RATE_2MB_MASK)
 #define IEEE80211_CCK_DEFAULT_RATES_MASK                \
     (IEEE80211_CCK_BASIC_RATES_MASK |               \
     IEEE80211_CCK_RATE_5MB_MASK |                   \
     IEEE80211_CCK_RATE_11MB_MASK)
 
 #define IEEE80211_OFDM_RATES_MASK       0x00000FF0
 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
     IEEE80211_OFDM_RATE_12MB_MASK |                 \
     IEEE80211_OFDM_RATE_24MB_MASK)
 #define IEEE80211_OFDM_DEFAULT_RATES_MASK               \
     (IEEE80211_OFDM_BASIC_RATES_MASK |              \
     IEEE80211_OFDM_RATE_9MB_MASK  |                 \
     IEEE80211_OFDM_RATE_18MB_MASK |                 \
     IEEE80211_OFDM_RATE_36MB_MASK |                 \
     IEEE80211_OFDM_RATE_48MB_MASK |                 \
     IEEE80211_OFDM_RATE_54MB_MASK)
 #define IEEE80211_DEFAULT_RATES_MASK                    \
     (IEEE80211_OFDM_DEFAULT_RATES_MASK |                \
      IEEE80211_CCK_DEFAULT_RATES_MASK)
 
 #define IEEE80211_NUM_OFDM_RATES    8
 #define IEEE80211_NUM_CCK_RATES     4
 #define IEEE80211_OFDM_SHIFT_MASK_A 4
 
 /* IEEE 802.11 requires that STA supports concurrent reception of at least
  * three fragmented frames. This define can be increased to support more
  * concurrent frames, but it should be noted that each entry can consume about
  * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
 #define IEEE80211_FRAG_CACHE_LEN 4
 
 #define SEC_KEY_1   (1<<0)
 #define SEC_KEY_2   (1<<1)
 #define SEC_KEY_3   (1<<2)
 #define SEC_KEY_4   (1<<3)
 #define SEC_ACTIVE_KEY  (1<<4)
 #define SEC_AUTH_MODE   (1<<5)
 #define SEC_UNICAST_GROUP (1<<6)
 #define SEC_LEVEL   (1<<7)
 #define SEC_ENABLED     (1<<8)
 
 #define SEC_LEVEL_0      0 /* None */
 #define SEC_LEVEL_1      1 /* WEP 40 and 104 bit */
 #define SEC_LEVEL_2      2 /* Level 1 + TKIP */
 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
 #define SEC_LEVEL_3      4 /* Level 2 + CCMP */
 
 #define WEP_KEYS 4
 #define WEP_KEY_LEN 13
 
 /*
 
  802.11 data frame from AP
 
       ,-------------------------------------------------------------------.
 Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
       |------|------|---------|---------|---------|------|---------|------|
 Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
       |      | tion | (BSSID) |  |   | ence |  data   |      |
       `-------------------------------------------------------------------'
 
 Total: 28-2340 bytes
 
 */
 
 #define BEACON_PROBE_SSID_ID_POSITION 12
 
 /* Management Frame Information Element Types */
 #define MFIE_TYPE_SSID      0
 #define MFIE_TYPE_RATES     1
 #define MFIE_TYPE_FH_SET    2
 #define MFIE_TYPE_DS_SET    3
 #define MFIE_TYPE_CF_SET    4
 #define MFIE_TYPE_TIM       5
 #define MFIE_TYPE_IBSS_SET  6
 #define MFIE_TYPE_CHALLENGE 16
 #define MFIE_TYPE_ERP       42
 #define MFIE_TYPE_RSN       48
 #define MFIE_TYPE_RATES_EX  50
 #define MFIE_TYPE_GENERIC   221
 
 /*
  * These are the data types that can make up management packets
  *
     u16 auth_algorithm;
     u16 auth_sequence;
     u16 beacon_interval;
     u16 capability;
     u8 current_ap[ETH_ALEN];
     u16 listen_interval;
     struct {
         u16 association_id:14, reserved:2;
     } __packed;
     u32 time_stamp[2];
     u16 reason;
     u16 status;
 */
 
 #define IEEE80211_DEFAULT_TX_ESSID "Penguin"
 #define IEEE80211_DEFAULT_BASIC_RATE 10
 
 /* SWEEP TABLE ENTRIES NUMBER*/
 #define MAX_SWEEP_TAB_ENTRIES         42
 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
  * only use 8, and then use extended rates for the remaining supported
  * rates.  Other APs, however, stick all of their supported rates on the
  * main rates information element... */
 #define MAX_RATES_LENGTH        ((u8)12)
 #define MAX_RATES_EX_LENGTH     ((u8)16)
 #define MAX_NETWORK_COUNT       128
 #define MAX_CHANNEL_NUMBER      161
 #define IEEE80211_SOFTMAC_SCAN_TIME 400
 /* HZ / 2) */
 #define IEEE80211_SOFTMAC_ASSOC_RETRY_TIME (HZ * 2)
 
 #define CRC_LENGTH       4U
 
 #define MAX_WPA_IE_LEN (256)
 #define MAX_WPS_IE_LEN (512)
 #define MAX_P2P_IE_LEN (256)
 #define MAX_WFD_IE_LEN (128)
 
 #define NETWORK_EMPTY_ESSID (1<<0)
 #define NETWORK_HAS_OFDM    (1<<1)
 #define NETWORK_HAS_CCK     (1<<2)
 
 #define IEEE80211_DTIM_MBCAST 4
 #define IEEE80211_DTIM_UCAST 2
 #define IEEE80211_DTIM_VALID 1
 #define IEEE80211_DTIM_INVALID 0
 
 #define IEEE80211_PS_DISABLED 0
 #define IEEE80211_PS_UNICAST IEEE80211_DTIM_UCAST
 #define IEEE80211_PS_MBCAST IEEE80211_DTIM_MBCAST
 #define IW_ESSID_MAX_SIZE 32
 /*
 join_res:
 -1: authentication fail
 -2: association fail
 > 0: TID
 */
 
 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
 #define DEFAULT_FTS 2346
 
 static inline int is_multicast_mac_addr(const u8 *addr)
 {
     return ((addr[0] != 0xff) && (0x01 & addr[0]));
 }
 
 static inline int is_broadcast_mac_addr(const u8 *addr)
 {
     return (addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) &&
            (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff);
 }
 
 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
 
 #define MAXTID  16
 
 /* Action category code */
 enum rtw_ieee80211_category {
     RTW_WLAN_CATEGORY_P2P = 0x7f,/* P2P action frames */
 };
 
 /* SPECTRUM_MGMT action code */
 enum rtw_ieee80211_spectrum_mgmt_actioncode {
     RTW_WLAN_ACTION_SPCT_MSR_REQ = 0,
     RTW_WLAN_ACTION_SPCT_MSR_RPRT = 1,
     RTW_WLAN_ACTION_SPCT_TPC_REQ = 2,
     RTW_WLAN_ACTION_SPCT_TPC_RPRT = 3,
     RTW_WLAN_ACTION_SPCT_CHL_SWITCH = 4,
     RTW_WLAN_ACTION_SPCT_EXT_CHL_SWITCH = 5,
 };
 
 enum _PUBLIC_ACTION {
     ACT_PUBLIC_BSSCOEXIST = 0, /*  20/40 BSS Coexistence */
     ACT_PUBLIC_DSE_ENABLE = 1,
     ACT_PUBLIC_DSE_DEENABLE = 2,
     ACT_PUBLIC_DSE_REG_LOCATION = 3,
     ACT_PUBLIC_EXT_CHL_SWITCH = 4,
     ACT_PUBLIC_DSE_MSR_REQ = 5,
     ACT_PUBLIC_DSE_MSR_RPRT = 6,
     ACT_PUBLIC_MP = 7, /*  Measurement Pilot */
     ACT_PUBLIC_DSE_PWR_CONSTRAINT = 8,
     ACT_PUBLIC_VENDOR = 9, /*  for WIFI_DIRECT */
     ACT_PUBLIC_GAS_INITIAL_REQ = 10,
     ACT_PUBLIC_GAS_INITIAL_RSP = 11,
     ACT_PUBLIC_GAS_COMEBACK_REQ = 12,
     ACT_PUBLIC_GAS_COMEBACK_RSP = 13,
     ACT_PUBLIC_TDLS_DISCOVERY_RSP = 14,
     ACT_PUBLIC_LOCATION_TRACK = 15,
     ACT_PUBLIC_MAX
 };
 
 #define OUI_MICROSOFT 0x0050f2 /* Microsoft (also used in Wi-Fi specs)
                 * 00:50:F2 */
 #define WME_OUI_TYPE 2
 #define WME_OUI_SUBTYPE_INFORMATION_ELEMENT 0
 #define WME_OUI_SUBTYPE_PARAMETER_ELEMENT 1
 #define WME_OUI_SUBTYPE_TSPEC_ELEMENT 2
 #define WME_VERSION 1
 
 #define WME_ACTION_CODE_SETUP_REQUEST 0
 #define WME_ACTION_CODE_SETUP_RESPONSE 1
 #define WME_ACTION_CODE_TEARDOWN 2
 
 #define WME_SETUP_RESPONSE_STATUS_ADMISSION_ACCEPTED 0
 #define WME_SETUP_RESPONSE_STATUS_INVALID_PARAMETERS 1
 #define WME_SETUP_RESPONSE_STATUS_REFUSED 3
 
 #define WME_TSPEC_DIRECTION_UPLINK 0
 #define WME_TSPEC_DIRECTION_DOWNLINK 1
 #define WME_TSPEC_DIRECTION_BI_DIRECTIONAL 3
 
 #define OUI_BROADCOM 0x00904c /* Broadcom (Epigram) */
 
 #define VENDOR_HT_CAPAB_OUI_TYPE 0x33 /* 00-90-4c:0x33 */
 
 /**
  * enum rtw_ieee80211_channel_flags - channel flags
  *
  * Channel flags set by the regulatory control code.
  *
  * @RTW_IEEE80211_CHAN_DISABLED: This channel is disabled.
  * @RTW_IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
  *      on this channel.
  * @RTW_IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
  * @RTW_IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
  * @RTW_IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
  *      is not permitted.
  * @RTW_IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
  *      is not permitted.
  */
 enum rtw_ieee80211_channel_flags {
     RTW_IEEE80211_CHAN_DISABLED  = 1<<0,
     RTW_IEEE80211_CHAN_PASSIVE_SCAN     = 1<<1,
     RTW_IEEE80211_CHAN_NO_IBSS    = 1<<2,
     RTW_IEEE80211_CHAN_RADAR        = 1<<3,
     RTW_IEEE80211_CHAN_NO_HT40PLUS      = 1<<4,
     RTW_IEEE80211_CHAN_NO_HT40MINUS     = 1<<5,
 };
 
 #define RTW_IEEE80211_CHAN_NO_HT40 \
       (RTW_IEEE80211_CHAN_NO_HT40PLUS | RTW_IEEE80211_CHAN_NO_HT40MINUS)
 
 /* Represent channel details, subset of ieee80211_channel */
 struct rtw_ieee80211_channel {
     u16 hw_value;
     u32 flags;
 };
 
 #define CHAN_FMT \
     "hw_value:%u, " \
     "flags:0x%08x" \
 
 #define CHAN_ARG(channel) \
     (channel)->hw_value \
     , (channel)->flags \
 
 /* Parsed Information Elements */
 struct rtw_ieee802_11_elems {
     u8 *ssid;
     u8 ssid_len;
     u8 *supp_rates;
     u8 supp_rates_len;
     u8 *fh_params;
     u8 fh_params_len;
     u8 *ds_params;
     u8 ds_params_len;
     u8 *cf_params;
     u8 cf_params_len;
     u8 *tim;
     u8 tim_len;
     u8 *ibss_params;
     u8 ibss_params_len;
     u8 *challenge;
     u8 challenge_len;
     u8 *erp_info;
     u8 erp_info_len;
     u8 *ext_supp_rates;
     u8 ext_supp_rates_len;
     u8 *wpa_ie;
     u8 wpa_ie_len;
     u8 *rsn_ie;
     u8 rsn_ie_len;
     u8 *wme;
     u8 wme_len;
     u8 *wme_tspec;
     u8 wme_tspec_len;
     u8 *wps_ie;
     u8 wps_ie_len;
     u8 *power_cap;
     u8 power_cap_len;
     u8 *supp_channels;
     u8 supp_channels_len;
     u8 *mdie;
     u8 mdie_len;
     u8 *ftie;
     u8 ftie_len;
     u8 *timeout_int;
     u8 timeout_int_len;
     u8 *ht_capabilities;
     u8 ht_capabilities_len;
     u8 *ht_operation;
     u8 ht_operation_len;
     u8 *vendor_ht_cap;
     u8 vendor_ht_cap_len;
 };
 
 enum parse_res {
     ParseOK = 0,
     ParseUnknown = 1,
     ParseFailed = -1
 };
 
 enum parse_res rtw_ieee802_11_parse_elems(u8 *start, uint len,
                       struct rtw_ieee802_11_elems *elems,
                       int show_errors);
 
 u8 *rtw_set_fixed_ie(unsigned char *pbuf, unsigned int len,
              unsigned char *source, unsigned int *frlen);
 u8 *rtw_set_ie(u8 *pbuf, int index, uint len, u8 *source, uint *frlen);
 u8 *rtw_get_ie(u8 *pbuf, int index, int *len, int limit);
 
 void rtw_set_supported_rate(u8 *SupportedRates, uint mode);
 
 unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit);
 unsigned char *rtw_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit);
 int rtw_get_wpa_cipher_suite(u8 *s);
 int rtw_get_wpa2_cipher_suite(u8 *s);
 int rtw_get_wapi_ie(u8 *in_ie, uint in_len, u8 *wapi_ie, u16 *wapi_len);
 int rtw_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
              int *pairwise_cipher, int *is_8021x);
 int rtw_parse_wpa2_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
               int *pairwise_cipher, int *is_8021x);
 
 int rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len,
            u8 *wpa_ie, u16 *wpa_len);
 
 u8 rtw_is_wps_ie(u8 *ie_ptr, uint *wps_ielen);
 u8 *rtw_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen);
 u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id,
              u8 *buf_attr, u32 *len_attr);
 u8 *rtw_get_wps_attr_content(u8 *wps_ie, uint wps_ielen, u16 target_attr_id,
                  u8 *buf_content, uint *len_content);
 
 /**
  * for_each_ie - iterate over continuous IEs
  * @ie:
  * @buf:
  * @buf_len:
  */
 #define for_each_ie(ie, buf, buf_len) \
     for (ie = (void *)buf; (((u8 *)ie) - ((u8 *)buf) + 1) < buf_len;    \
         ie = (void *)(((u8 *)ie) + *(((u8 *)ie)+1) + 2))
 
 u8 *rtw_get_p2p_ie(u8 *in_ie, int in_len, u8 *p2p_ie, uint *p2p_ielen);
 u8 *rtw_get_p2p_attr(u8 *p2p_ie, uint p2p_ielen, u8 target_attr_id,
              u8 *buf_attr, u32 *len_attr);
 u8 *rtw_get_p2p_attr_content(u8 *p2p_ie, uint p2p_ielen, u8 target_attr_id,
                  u8 *buf_content, uint *len_content);
 u32 rtw_set_p2p_attr_content(u8 *pbuf, u8 attr_id, u16 attr_len,
                  u8 *pdata_attr);
 void rtw_wlan_bssid_ex_remove_p2p_attr(struct wlan_bssid_ex *bss_ex,
                        u8 attr_id);
 uint    rtw_get_rateset_len(u8  *rateset);
 
 struct registry_priv;
 int rtw_generate_ie(struct registry_priv *pregistrypriv);
 
 int rtw_get_bit_value_from_ieee_value(u8 val);
 
 bool    rtw_is_cckrates_included(u8 *rate);
 
 bool    rtw_is_cckratesonly_included(u8 *rate);
 
 int rtw_check_network_type(unsigned char *rate, int ratelen, int channel);
 
 void rtw_get_bcn_info(struct wlan_network *pnetwork);
 
 void rtw_macaddr_cfg(u8 *mac_addr);
 
 u16 rtw_mcs_rate(u8 bw_40MHz, u8 short_GI_20, u8 short_GI_40, unsigned char *MCS_rate);
 
 #endif /* IEEE80211_H */

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