drivers/staging/brcm80211/brcmsmac/wlc_bsscfg.h

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef _WLC_BSSCFG_H_
  18 #define _WLC_BSSCFG_H_
  19
  20 #include <wlc_types.h>
  21
  22 /* Check if a particular BSS config is AP or STA */
  23 #define BSSCFG_AP(cfg)          (0)
  24 #define BSSCFG_STA(cfg)         (1)
  25
  26 #define BSSCFG_IBSS(cfg)        (!(cfg)->BSS)
  27
  28 /* forward declarations */
  29 typedef struct wlc_bsscfg wlc_bsscfg_t;
  30
  31 #include <wlc_rate.h>
  32
  33 #define NTXRATE                 64      /* # tx MPDUs rate is reported for */
  34 #define MAXMACLIST              64      /* max # source MAC matches */
  35 #define BCN_TEMPLATE_COUNT      2
  36
  37 /* Iterator for "associated" STA bss configs:
  38    (struct wlc_info *wlc, int idx, wlc_bsscfg_t *cfg) */
  39 #define FOREACH_AS_STA(wlc, idx, cfg) \
  40         for (idx = 0; (int) idx < WLC_MAXBSSCFG; idx++) \
  41                 if ((cfg = (wlc)->bsscfg[idx]) && BSSCFG_STA(cfg) && cfg->associated)
  42
  43 /* As above for all non-NULL BSS configs */
  44 #define FOREACH_BSS(wlc, idx, cfg) \
  45         for (idx = 0; (int) idx < WLC_MAXBSSCFG; idx++) \
  46                 if ((cfg = (wlc)->bsscfg[idx]))
  47
  48 /* BSS configuration state */
  49 struct wlc_bsscfg {
  50         struct wlc_info *wlc;   /* wlc to which this bsscfg belongs to. */
  51         bool up;                /* is this configuration up operational */
  52         bool enable;            /* is this configuration enabled */
  53         bool associated;        /* is BSS in ASSOCIATED state */
  54         bool BSS;               /* infraustructure or adhac */
  55         bool dtim_programmed;
  56 #ifdef LATER
  57         bool _ap;               /* is this configuration an AP */
  58         struct wlc_if *wlcif;   /* virtual interface, NULL for primary bsscfg */
  59         void *sup;              /* pointer to supplicant state */
  60         s8 sup_type;            /* type of supplicant */
  61         bool sup_enable_wpa;    /* supplicant WPA on/off */
  62         void *authenticator;    /* pointer to authenticator state */
  63         bool sup_auth_pending;  /* flag for auth timeout */
  64 #endif
  65         u8 SSID_len;            /* the length of SSID */
  66         u8 SSID[IEEE80211_MAX_SSID_LEN]; /* SSID string */
  67         struct scb *bcmc_scb[MAXBANDS]; /* one bcmc_scb per band */
  68         s8 _idx;                /* the index of this bsscfg,
  69                                  * assigned at wlc_bsscfg_alloc()
  70                                  */
  71         /* MAC filter */
  72         uint nmac;              /* # of entries on maclist array */
  73         int macmode;            /* allow/deny stations on maclist array */
  74         struct ether_addr *maclist;     /* list of source MAC addrs to match */
  75
  76         /* security */
  77         u32 wsec;               /* wireless security bitvec */
  78         s16 auth;               /* 802.11 authentication: Open, Shared Key, WPA */
  79         s16 openshared; /* try Open auth first, then Shared Key */
  80         bool wsec_restrict;     /* drop unencrypted packets if wsec is enabled */
  81         bool eap_restrict;      /* restrict data until 802.1X auth succeeds */
  82         u16 WPA_auth;   /* WPA: authenticated key management */
  83         bool wpa2_preauth;      /* default is true, wpa_cap sets value */
  84         bool wsec_portopen;     /* indicates keys are plumbed */
  85         wsec_iv_t wpa_none_txiv;        /* global txiv for WPA_NONE, tkip and aes */
  86         int wsec_index;         /* 0-3: default tx key, -1: not set */
  87         wsec_key_t *bss_def_keys[WLC_DEFAULT_KEYS];     /* default key storage */
  88
  89         /* TKIP countermeasures */
  90         bool tkip_countermeasures;      /* flags TKIP no-assoc period */
  91         u32 tk_cm_dt;   /* detect timer */
  92         u32 tk_cm_bt;   /* blocking timer */
  93         u32 tk_cm_bt_tmstmp;    /* Timestamp when TKIP BT is activated */
  94         bool tk_cm_activate;    /* activate countermeasures after EAPOL-Key sent */
  95
  96         u8 BSSID[ETH_ALEN];     /* BSSID (associated) */
  97         u8 cur_etheraddr[ETH_ALEN];     /* h/w address */
  98         u16 bcmc_fid;   /* the last BCMC FID queued to TX_BCMC_FIFO */
  99         u16 bcmc_fid_shm;       /* the last BCMC FID written to shared mem */
 100
 101         u32 flags;              /* WLC_BSSCFG flags; see below */
 102
 103         u8 *bcn;                /* AP beacon */
 104         uint bcn_len;           /* AP beacon length */
 105         bool ar_disassoc;       /* disassociated in associated recreation */
 106
 107         int auth_atmptd;        /* auth type (open/shared) attempted */
 108
 109         pmkid_cand_t pmkid_cand[MAXPMKID];      /* PMKID candidate list */
 110         uint npmkid_cand;       /* num PMKID candidates */
 111         pmkid_t pmkid[MAXPMKID];        /* PMKID cache */
 112         uint npmkid;            /* num cached PMKIDs */
 113
 114         wlc_bss_info_t *target_bss;     /* BSS parms during tran. to ASSOCIATED state */
 115         wlc_bss_info_t *current_bss;    /* BSS parms in ASSOCIATED state */
 116
 117         /* PM states */
 118         bool PMawakebcn;        /* bcn recvd during current waking state */
 119         bool PMpending;         /* waiting for tx status with PM indicated set */
 120         bool priorPMstate;      /* Detecting PM state transitions */
 121         bool PSpoll;            /* whether there is an outstanding PS-Poll frame */
 122
 123         /* BSSID entry in RCMTA, use the wsec key management infrastructure to
 124          * manage the RCMTA entries.
 125          */
 126         wsec_key_t *rcmta;
 127
 128         /* 'unique' ID of this bsscfg, assigned at bsscfg allocation */
 129         u16 ID;
 130
 131         uint txrspecidx;        /* index into tx rate circular buffer */
 132         ratespec_t txrspec[NTXRATE][2]; /* circular buffer of prev MPDUs tx rates */
 133 };
 134
 135 #define WLC_BSSCFG_11N_DISABLE  0x1000  /* Do not advertise .11n IEs for this BSS */
 136 #define WLC_BSSCFG_HW_BCN       0x20    /* The BSS is generating beacons in HW */
 137
 138 #define HWBCN_ENAB(cfg)         (((cfg)->flags & WLC_BSSCFG_HW_BCN) != 0)
 139 #define HWPRB_ENAB(cfg)         (((cfg)->flags & WLC_BSSCFG_HW_PRB) != 0)
 140
 141 extern void wlc_bsscfg_ID_assign(struct wlc_info *wlc, wlc_bsscfg_t * bsscfg);
 142
 143 /* Extend N_ENAB to per-BSS */
 144 #define BSS_N_ENAB(wlc, cfg) \
 145         (N_ENAB((wlc)->pub) && !((cfg)->flags & WLC_BSSCFG_11N_DISABLE))
 146
 147 #define MBSS_BCN_ENAB(cfg)       0
 148 #define MBSS_PRB_ENAB(cfg)       0
 149 #define SOFTBCN_ENAB(pub)    (0)
 150 #define SOFTPRB_ENAB(pub)    (0)
 151 #define wlc_bsscfg_tx_check(a) do { } while (0);
 152
 153 #endif                          /* _WLC_BSSCFG_H_ */