The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_var.h

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    1 /*-
    2  * Copyright (c) 2001 Atsushi Onoe
    3  * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 #ifndef _NET80211_IEEE80211_VAR_H_
   29 #define _NET80211_IEEE80211_VAR_H_
   30 
   31 /*
   32  * Definitions for IEEE 802.11 drivers.
   33  */
   34 #define IEEE80211_DEBUG
   35 #undef  IEEE80211_DEBUG_REFCNT                  /* node refcnt stuff */
   36 
   37 /* NB: portability glue must go first */
   38 #ifdef __NetBSD__
   39 #include <net80211/ieee80211_netbsd.h>
   40 #elif __FreeBSD__
   41 #include <net80211/ieee80211_freebsd.h>
   42 #elif __linux__
   43 #include <net80211/ieee80211_linux.h>
   44 #else
   45 #error  "No support for your operating system!"
   46 #endif
   47 
   48 #include <net80211/_ieee80211.h>
   49 #include <net80211/ieee80211.h>
   50 #include <net80211/ieee80211_crypto.h>
   51 #include <net80211/ieee80211_ioctl.h>           /* for ieee80211_stats */
   52 #include <net80211/ieee80211_node.h>
   53 #include <net80211/ieee80211_power.h>
   54 #include <net80211/ieee80211_proto.h>
   55 #include <net80211/ieee80211_scan.h>
   56 
   57 #define IEEE80211_TXPOWER_MAX   100     /* .5 dbM (XXX units?) */
   58 #define IEEE80211_TXPOWER_MIN   0       /* kill radio */
   59 
   60 #define IEEE80211_DTIM_DEFAULT  1       /* default DTIM period */
   61 #define IEEE80211_BINTVAL_DEFAULT 100   /* default beacon interval (TU's) */
   62 
   63 #define IEEE80211_BMISS_MAX     2       /* maximum consecutive bmiss allowed */
   64 #define IEEE80211_HWBMISS_DEFAULT 7     /* h/w bmiss threshold (beacons) */
   65 
   66 #define IEEE80211_BGSCAN_INTVAL_MIN     15      /* min bg scan intvl (secs) */
   67 #define IEEE80211_BGSCAN_INTVAL_DEFAULT (5*60)  /* default bg scan intvl */
   68 
   69 #define IEEE80211_BGSCAN_IDLE_MIN       100     /* min idle time (ms) */
   70 #define IEEE80211_BGSCAN_IDLE_DEFAULT   250     /* default idle time (ms) */
   71 
   72 #define IEEE80211_SCAN_VALID_MIN        10      /* min scan valid time (secs) */
   73 #define IEEE80211_SCAN_VALID_DEFAULT    60      /* default scan valid time */
   74 
   75 #define IEEE80211_PS_SLEEP      0x1     /* STA is in power saving mode */
   76 #define IEEE80211_PS_MAX_QUEUE  50      /* maximum saved packets */
   77 
   78 #define IEEE80211_FIXED_RATE_NONE       -1
   79 #define IEEE80211_MCAST_RATE_DEFAULT    (2*1)   /* default mcast rate (1M) */
   80 
   81 #define IEEE80211_RTS_DEFAULT           IEEE80211_RTS_MAX
   82 #define IEEE80211_FRAG_DEFAULT          IEEE80211_FRAG_MAX
   83 
   84 #define IEEE80211_MS_TO_TU(x)   (((x) * 1000) / 1024)
   85 #define IEEE80211_TU_TO_MS(x)   (((x) * 1024) / 1000)
   86 #define IEEE80211_TU_TO_TICKS(x)(((x) * 1024 * hz) / (1000 * 1000))
   87 
   88 struct ieee80211_aclator;
   89 struct sysctl_ctx_list;
   90 
   91 struct ieee80211com {
   92         SLIST_ENTRY(ieee80211com) ic_next;
   93         struct ifnet            *ic_ifp;        /* associated device */
   94         ieee80211_com_lock_t    ic_comlock;     /* state update lock */
   95         ieee80211_beacon_lock_t ic_beaconlock;  /* beacon update lock */
   96         struct ieee80211_stats  ic_stats;       /* statistics */
   97         struct sysctl_ctx_list  *ic_sysctl;     /* dynamic sysctl context */
   98         uint32_t                ic_debug;       /* debug msg flags */
   99         int                     ic_vap;         /* virtual AP index */
  100         int                     ic_headroom;    /* driver tx headroom needs */
  101         enum ieee80211_phytype  ic_phytype;     /* XXX wrong for multi-mode */
  102         enum ieee80211_opmode   ic_opmode;      /* operation mode */
  103         struct ifmedia          ic_media;       /* interface media config */
  104         uint8_t                 ic_myaddr[IEEE80211_ADDR_LEN];
  105 
  106         uint32_t                ic_flags;       /* state flags */
  107         uint32_t                ic_flags_ext;   /* extended state flags */
  108         uint32_t                ic_flags_ven;   /* vendor state flags */
  109         uint32_t                ic_caps;        /* capabilities */
  110         uint32_t                ic_htcaps;      /* HT capabilities */
  111         uint8_t                 ic_modecaps[2]; /* set of mode capabilities */
  112         uint16_t                ic_curmode;     /* current mode */
  113         struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
  114         uint16_t                ic_bintval;     /* beacon interval */
  115         uint16_t                ic_lintval;     /* listen interval */
  116         uint16_t                ic_holdover;    /* PM hold over duration */
  117         uint16_t                ic_txpowlimit;  /* global tx power limit */
  118         int                     ic_ampdu_rxmax; /* A-MPDU rx limit (bytes) */
  119         int                     ic_ampdu_density;/* A-MPDU density */
  120         int                     ic_ampdu_limit; /* A-MPDU tx limit (bytes) */
  121         int                     ic_amsdu_limit; /* A-MSDU tx limit (bytes) */
  122 
  123         /*
  124          * Channel state:
  125          *
  126          * ic_channels is the set of available channels for the device;
  127          *    it is setup by the driver
  128          * ic_nchans is the number of valid entries in ic_channels
  129          * ic_chan_avail is a bit vector of these channels used to check
  130          *    whether a channel is available w/o searching the channel table.
  131          * ic_chan_active is a (potentially) constrained subset of
  132          *    ic_chan_avail that reflects any mode setting or user-specified
  133          *    limit on the set of channels to use/scan
  134          * ic_curchan is the current channel the device is set to; it may
  135          *    be different from ic_bsschan when we are off-channel scanning
  136          *    or otherwise doing background work
  137          * ic_bsschan is the channel selected for operation; it may
  138          *    be undefined (IEEE80211_CHAN_ANYC)
  139          * ic_prevchan is a cached ``previous channel'' used to optimize
  140          *    lookups when switching back+forth between two channels
  141          *    (e.g. for dynamic turbo)
  142          */
  143         int                     ic_nchans;      /* # entries in ic_channels */
  144         struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX+1];
  145         uint8_t                 ic_chan_avail[IEEE80211_CHAN_BYTES];
  146         uint8_t                 ic_chan_active[IEEE80211_CHAN_BYTES];
  147         uint8_t                 ic_chan_scan[IEEE80211_CHAN_BYTES];
  148         struct ieee80211_channel *ic_curchan;   /* current channel */
  149         struct ieee80211_channel *ic_bsschan;   /* bss channel */
  150         struct ieee80211_channel *ic_prevchan;  /* previous channel */
  151         int                     ic_countrycode; /* ISO country code */
  152         uint16_t                ic_regdomain;   /* regulatory domain */
  153         uint8_t                 ic_location;    /* unknown, indoor, outdoor */
  154 
  155         struct ieee80211_scan_state *ic_scan;   /* scan state */
  156         enum ieee80211_roamingmode ic_roaming;  /* roaming mode */
  157         int                     ic_lastdata;    /* time of last data frame */
  158         int                     ic_lastscan;    /* time last scan completed */
  159         int                     ic_des_nssid;   /* # desired ssids */
  160         struct ieee80211_scan_ssid ic_des_ssid[1];/* desired ssid table */
  161         uint8_t                 ic_des_bssid[IEEE80211_ADDR_LEN];
  162         struct ieee80211_channel *ic_des_chan;  /* desired channel */
  163         int                     ic_des_mode;    /* desired phymode */
  164         u_int                   ic_bgscanidle;  /* bg scan idle threshold */
  165         u_int                   ic_bgscanintvl; /* bg scan min interval */
  166         u_int                   ic_scanvalid;   /* scan cache valid threshold */
  167         struct ieee80211_roam   ic_roam;        /* sta-mode roaming state */
  168 
  169         struct ieee80211_node_table ic_sta;     /* stations/neighbors */
  170 
  171         struct ieee80211_wme_state ic_wme;      /* WME/WMM state */
  172         const struct ieee80211_aclator *ic_acl; /* aclator glue */
  173         void                    *ic_as;         /* private aclator state */
  174 
  175         enum ieee80211_protmode ic_protmode;    /* 802.11g protection mode */
  176         uint16_t                ic_nonerpsta;   /* # non-ERP stations */
  177         uint16_t                ic_longslotsta; /* # long slot time stations */
  178         uint16_t                ic_sta_assoc;   /* stations associated */
  179         uint16_t                ic_ht_sta_assoc;/* HT stations associated */
  180         uint16_t                ic_ht40_sta_assoc;/* HT40 stations associated */
  181         uint8_t                 ic_curhtprotmode;/* HTINFO bss state */
  182         enum ieee80211_protmode ic_htprotmode;  /* HT protection mode */
  183         int                     ic_lastnonerp;  /* last time non-ERP sta noted*/
  184         int                     ic_lastnonht;   /* last time non-HT sta noted */
  185 
  186         struct ifqueue          ic_mgtq;
  187         enum ieee80211_state    ic_state;       /* 802.11 state */
  188         struct callout          ic_mgtsend;     /* mgmt frame response timer */
  189         uint32_t                *ic_aid_bitmap; /* association id map */
  190         uint16_t                ic_max_aid;
  191         uint16_t                ic_ps_sta;      /* stations in power save */
  192         uint16_t                ic_ps_pending;  /* ps sta's w/ pending frames */
  193         uint8_t                 *ic_tim_bitmap; /* power-save stations w/ data*/
  194         uint16_t                ic_tim_len;     /* ic_tim_bitmap size (bytes) */
  195         uint8_t                 ic_dtim_period; /* DTIM period */
  196         uint8_t                 ic_dtim_count;  /* DTIM count for last bcn */
  197         struct bpf_if           *ic_rawbpf;     /* packet filter structure */
  198         struct ieee80211_node   *ic_bss;        /* information for this node */
  199         int                     ic_fixed_rate;  /* 802.11 rate or -1 */
  200         int                     ic_mcast_rate;  /* rate for mcast frames */
  201         uint16_t                ic_rtsthreshold;
  202         uint16_t                ic_fragthreshold;
  203         uint8_t                 ic_bmissthreshold;
  204         uint8_t                 ic_bmiss_count; /* current beacon miss count */
  205         int                     ic_bmiss_max;   /* max bmiss before scan */
  206         uint16_t                ic_swbmiss_count;/* beacons in last period */
  207         uint16_t                ic_swbmiss_period;/* s/w bmiss period */
  208         struct callout          ic_swbmiss;     /* s/w beacon miss timer */
  209 
  210         uint16_t                ic_txmin;       /* min tx retry count */
  211         uint16_t                ic_txmax;       /* max tx retry count */
  212         uint16_t                ic_txlifetime;  /* tx lifetime */
  213         struct callout          ic_inact;       /* inactivity timer wait */
  214         void                    *ic_opt_ie;     /* user-specified IE's */
  215         uint16_t                ic_opt_ie_len;  /* length of ni_opt_ie */
  216         int                     ic_inact_init;  /* initial setting */
  217         int                     ic_inact_auth;  /* auth but not assoc setting */
  218         int                     ic_inact_run;   /* authorized setting */
  219         int                     ic_inact_probe; /* inactive probe time */
  220 
  221         /*
  222          * Cipher state/configuration.
  223          */
  224         struct ieee80211_crypto_state ic_crypto;
  225 #define ic_nw_keys      ic_crypto.cs_nw_keys    /* XXX compatibility */
  226 #define ic_def_txkey    ic_crypto.cs_def_txkey  /* XXX compatibility */
  227         /*
  228          * 802.1x glue.  When an authenticator attaches it
  229          * fills in this section.  We assume that when ic_ec
  230          * is setup that the methods are safe to call.
  231          */
  232         const struct ieee80211_authenticator *ic_auth;
  233         struct eapolcom         *ic_ec; 
  234 
  235         /* send/recv 802.11 management frame */
  236         int                     (*ic_send_mgmt)(struct ieee80211com *,
  237                                     struct ieee80211_node *, int, int);
  238         void                    (*ic_recv_mgmt)(struct ieee80211com *,
  239                                     struct mbuf *, struct ieee80211_node *,
  240                                     int, int, int, uint32_t);
  241         /* send raw 802.11 frame */
  242         int                     (*ic_raw_xmit)(struct ieee80211_node *,
  243                                     struct mbuf *,
  244                                     const struct ieee80211_bpf_params *);
  245         /* reset device state after 802.11 parameter/state change */
  246         int                     (*ic_reset)(struct ifnet *);
  247         /* [schedule] beacon frame update */
  248         void                    (*ic_update_beacon)(struct ieee80211com *, int);
  249         /* update device state for 802.11 slot time change */
  250         void                    (*ic_updateslot)(struct ifnet *);
  251         /* new station association callback/notification */
  252         void                    (*ic_newassoc)(struct ieee80211_node *, int);
  253         /* node state management */
  254         struct ieee80211_node   *(*ic_node_alloc)(struct ieee80211_node_table*);
  255         void                    (*ic_node_free)(struct ieee80211_node *);
  256         void                    (*ic_node_cleanup)(struct ieee80211_node *);
  257         int8_t                  (*ic_node_getrssi)(const struct ieee80211_node*);
  258         void                    (*ic_node_getsignal)(const struct ieee80211_node*,
  259                                     int8_t *, int8_t *);
  260         /* scanning support */
  261         void                    (*ic_scan_start)(struct ieee80211com *);
  262         void                    (*ic_scan_end)(struct ieee80211com *);
  263         void                    (*ic_set_channel)(struct ieee80211com *);
  264         void                    (*ic_scan_curchan)(struct ieee80211com *,
  265                                     unsigned long);
  266         void                    (*ic_scan_mindwell)(struct ieee80211com *);
  267         /* per-vap eventually... */
  268         int                     (*ic_newstate)(struct ieee80211com *,
  269                                     enum ieee80211_state, int);
  270         void                    (*ic_set_tim)(struct ieee80211_node *, int);
  271 
  272         /*
  273          * 802.11n ADDBA support.  A simple/generic implementation
  274          * of A-MPDU tx aggregation is provided; the driver may
  275          * override these methods to provide their own support.
  276          * A-MPDU rx re-ordering happens automatically if the
  277          * driver passes out-of-order frames to ieee80211_input
  278          * from an assocated HT station.
  279          */
  280         void                    (*ic_recv_action)(struct ieee80211_node *,
  281                                     const uint8_t *frm, const uint8_t *efrm);
  282         int                     (*ic_send_action)(struct ieee80211_node *,
  283                                     int category, int action,
  284                                     uint16_t args[4]);
  285         /* start/stop doing A-MPDU tx aggregation for a station */
  286         int                     (*ic_addba_request)(struct ieee80211_node *,
  287                                     struct ieee80211_tx_ampdu *,
  288                                     int dialogtoken, int baparamset,
  289                                     int batimeout);
  290         int                     (*ic_addba_response)(struct ieee80211_node *,
  291                                     struct ieee80211_tx_ampdu *,
  292                                     int status, int baparamset, int batimeout);
  293         void                    (*ic_addba_stop)(struct ieee80211_node *,
  294                                     struct ieee80211_tx_ampdu *);
  295 };
  296 
  297 #define IEEE80211_ADDR_EQ(a1,a2)        (memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
  298 #define IEEE80211_ADDR_COPY(dst,src)    memcpy(dst,src,IEEE80211_ADDR_LEN)
  299 
  300 /* ic_flags */
  301 /* NB: bits 0x4c available */
  302 #define IEEE80211_F_TURBOP      0x00000001      /* CONF: ATH Turbo enabled*/
  303 #define IEEE80211_F_COMP        0x00000002      /* CONF: ATH comp enabled */
  304 #define IEEE80211_F_FF          0x00000004      /* CONF: ATH FF enabled */
  305 #define IEEE80211_F_BURST       0x00000008      /* CONF: bursting enabled */
  306 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
  307 #define IEEE80211_F_PRIVACY     0x00000010      /* CONF: privacy enabled */
  308 #define IEEE80211_F_PUREG       0x00000020      /* CONF: 11g w/o 11b sta's */
  309 #define IEEE80211_F_SCAN        0x00000080      /* STATUS: scanning */
  310 #define IEEE80211_F_ASCAN       0x00000100      /* STATUS: active scan */
  311 #define IEEE80211_F_SIBSS       0x00000200      /* STATUS: start IBSS */
  312 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
  313 #define IEEE80211_F_SHSLOT      0x00000400      /* STATUS: use short slot time*/
  314 #define IEEE80211_F_PMGTON      0x00000800      /* CONF: Power mgmt enable */
  315 #define IEEE80211_F_DESBSSID    0x00001000      /* CONF: des_bssid is set */
  316 #define IEEE80211_F_WME         0x00002000      /* CONF: enable WME use */
  317 #define IEEE80211_F_BGSCAN      0x00004000      /* CONF: bg scan enabled (???)*/
  318 #define IEEE80211_F_SWRETRY     0x00008000      /* CONF: sw tx retry enabled */
  319 #define IEEE80211_F_TXPOW_FIXED 0x00010000      /* TX Power: fixed rate */
  320 #define IEEE80211_F_IBSSON      0x00020000      /* CONF: IBSS creation enable */
  321 #define IEEE80211_F_SHPREAMBLE  0x00040000      /* STATUS: use short preamble */
  322 #define IEEE80211_F_DATAPAD     0x00080000      /* CONF: do alignment pad */
  323 #define IEEE80211_F_USEPROT     0x00100000      /* STATUS: protection enabled */
  324 #define IEEE80211_F_USEBARKER   0x00200000      /* STATUS: use barker preamble*/
  325 #define IEEE80211_F_WPA1        0x00800000      /* CONF: WPA enabled */
  326 #define IEEE80211_F_WPA2        0x01000000      /* CONF: WPA2 enabled */
  327 #define IEEE80211_F_WPA         0x01800000      /* CONF: WPA/WPA2 enabled */
  328 #define IEEE80211_F_DROPUNENC   0x02000000      /* CONF: drop unencrypted */
  329 #define IEEE80211_F_COUNTERM    0x04000000      /* CONF: TKIP countermeasures */
  330 #define IEEE80211_F_HIDESSID    0x08000000      /* CONF: hide SSID in beacon */
  331 #define IEEE80211_F_NOBRIDGE    0x10000000      /* CONF: dis. internal bridge */
  332 #define IEEE80211_F_DOTH        0x40000000      /* CONF: 11h enabled */
  333 
  334 /* Atheros protocol-specific flags */
  335 #define IEEE80211_F_ATHEROS \
  336         (IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
  337 /* Check if an Atheros capability was negotiated for use */
  338 #define IEEE80211_ATH_CAP(ic, ni, bit) \
  339         ((ic)->ic_flags & (ni)->ni_ath_flags & (bit))
  340 
  341 /* ic_flags_ext */
  342 #define IEEE80211_FEXT_NONHT_PR  0x00000001     /* STATUS: non-HT sta present */
  343 #define IEEE80211_FEXT_INACT     0x00000002     /* CONF: sta inact handling */
  344 /* 0x00000006 reserved */
  345 #define IEEE80211_FEXT_BGSCAN    0x00000008     /* STATUS: complete bgscan */
  346 #define IEEE80211_FEXT_NONERP_PR 0x00000200     /* STATUS: non-ERP sta present*/
  347 #define IEEE80211_FEXT_SWBMISS   0x00000400     /* CONF: do bmiss in s/w */
  348 #define IEEE80211_FEXT_PROBECHAN 0x00020000     /* CONF: probe passive channel*/
  349 #define IEEE80211_FEXT_HT        0x00080000     /* CONF: HT supported */
  350 #define IEEE80211_FEXT_AMPDU_TX  0x00100000     /* CONF: A-MPDU tx supported */
  351 #define IEEE80211_FEXT_AMPDU_RX  0x00200000     /* CONF: A-MPDU tx supported */
  352 #define IEEE80211_FEXT_AMSDU_TX  0x00400000     /* CONF: A-MSDU tx supported */
  353 #define IEEE80211_FEXT_AMSDU_RX  0x00800000     /* CONF: A-MSDU tx supported */
  354 #define IEEE80211_FEXT_USEHT40   0x01000000     /* CONF: 20/40 use enabled */
  355 #define IEEE80211_FEXT_PUREN     0x02000000     /* CONF: 11n w/o legacy sta's */
  356 #define IEEE80211_FEXT_SHORTGI20 0x04000000     /* CONF: short GI in HT20 */
  357 #define IEEE80211_FEXT_SHORTGI40 0x08000000     /* CONF: short GI in HT40 */
  358 #define IEEE80211_FEXT_HTCOMPAT  0x10000000     /* CONF: HT vendor OUI's */
  359 
  360 /* ic_caps */
  361 #define IEEE80211_C_WEP         0x00000001      /* CAPABILITY: WEP available */
  362 #define IEEE80211_C_TKIP        0x00000002      /* CAPABILITY: TKIP available */
  363 #define IEEE80211_C_AES         0x00000004      /* CAPABILITY: AES OCB avail */
  364 #define IEEE80211_C_AES_CCM     0x00000008      /* CAPABILITY: AES CCM avail */
  365 #define IEEE80211_C_CKIP        0x00000020      /* CAPABILITY: CKIP available */
  366 #define IEEE80211_C_FF          0x00000040      /* CAPABILITY: ATH FF avail */
  367 #define IEEE80211_C_TURBOP      0x00000080      /* CAPABILITY: ATH Turbo avail*/
  368 #define IEEE80211_C_IBSS        0x00000100      /* CAPABILITY: IBSS available */
  369 #define IEEE80211_C_PMGT        0x00000200      /* CAPABILITY: Power mgmt */
  370 #define IEEE80211_C_HOSTAP      0x00000400      /* CAPABILITY: HOSTAP avail */
  371 #define IEEE80211_C_AHDEMO      0x00000800      /* CAPABILITY: Old Adhoc Demo */
  372 #define IEEE80211_C_SWRETRY     0x00001000      /* CAPABILITY: sw tx retry */
  373 #define IEEE80211_C_TXPMGT      0x00002000      /* CAPABILITY: tx power mgmt */
  374 #define IEEE80211_C_SHSLOT      0x00004000      /* CAPABILITY: short slottime */
  375 #define IEEE80211_C_SHPREAMBLE  0x00008000      /* CAPABILITY: short preamble */
  376 #define IEEE80211_C_MONITOR     0x00010000      /* CAPABILITY: monitor mode */
  377 #define IEEE80211_C_TKIPMIC     0x00020000      /* CAPABILITY: TKIP MIC avail */
  378 #define IEEE80211_C_WPA1        0x00800000      /* CAPABILITY: WPA1 avail */
  379 #define IEEE80211_C_WPA2        0x01000000      /* CAPABILITY: WPA2 avail */
  380 #define IEEE80211_C_WPA         0x01800000      /* CAPABILITY: WPA1+WPA2 avail*/
  381 #define IEEE80211_C_BURST       0x02000000      /* CAPABILITY: frame bursting */
  382 #define IEEE80211_C_WME         0x04000000      /* CAPABILITY: WME avail */
  383 #define IEEE80211_C_WDS         0x08000000      /* CAPABILITY: 4-addr support */
  384 /* 0x10000000 reserved */
  385 #define IEEE80211_C_BGSCAN      0x20000000      /* CAPABILITY: bg scanning */
  386 #define IEEE80211_C_TXFRAG      0x40000000      /* CAPABILITY: tx fragments */
  387 /* XXX protection/barker? */
  388 
  389 #define IEEE80211_C_CRYPTO      0x0000002f      /* CAPABILITY: crypto alg's */
  390 
  391 /*
  392  * ic_htcaps: HT-specific device/driver capabilities
  393  *
  394  * NB: the low 16-bits are the 802.11 definitions, the upper
  395  *     16-bits are used to define s/w/driver capabilities.
  396  */
  397 #define IEEE80211_HTC_AMPDU     0x00010000      /* CAPABILITY: A-MPDU tx */
  398 #define IEEE80211_HTC_AMSDU     0x00020000      /* CAPABILITY: A-MSDU tx */
  399 /* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
  400 #define IEEE80211_HTC_HT        0x00040000      /* CAPABILITY: HT operation */
  401 
  402 void    ieee80211_ifattach(struct ieee80211com *);
  403 void    ieee80211_ifdetach(struct ieee80211com *);
  404 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
  405                 const struct ieee80211_channel *);
  406 void    ieee80211_announce(struct ieee80211com *);
  407 void    ieee80211_announce_channels(struct ieee80211com *);
  408 void    ieee80211_media_init(struct ieee80211com *,
  409                 ifm_change_cb_t, ifm_stat_cb_t);
  410 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
  411 int     ieee80211_media_change(struct ifnet *);
  412 void    ieee80211_media_status(struct ifnet *, struct ifmediareq *);
  413 int     ieee80211_ioctl(struct ieee80211com *, u_long, caddr_t);
  414 int     ieee80211_cfgget(struct ieee80211com *, u_long, caddr_t);
  415 int     ieee80211_cfgset(struct ieee80211com *, u_long, caddr_t);
  416 int     ieee80211_rate2media(struct ieee80211com *, int,
  417                 enum ieee80211_phymode);
  418 int     ieee80211_media2rate(int);
  419 int     ieee80211_mhz2ieee(u_int, u_int);
  420 int     ieee80211_chan2ieee(struct ieee80211com *,
  421                 const struct ieee80211_channel *);
  422 u_int   ieee80211_ieee2mhz(u_int, u_int);
  423 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
  424                 int freq, int flags);
  425 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
  426                 int ieee, int flags);
  427 int     ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
  428 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
  429 
  430 /* 
  431  * Key update synchronization methods.  XXX should not be visible.
  432  */
  433 static __inline void
  434 ieee80211_key_update_begin(struct ieee80211com *ic)
  435 {
  436         ic->ic_crypto.cs_key_update_begin(ic);
  437 }
  438 static __inline void
  439 ieee80211_key_update_end(struct ieee80211com *ic)
  440 {
  441         ic->ic_crypto.cs_key_update_end(ic);
  442 }
  443 
  444 /*
  445  * XXX these need to be here for IEEE80211_F_DATAPAD
  446  */
  447 
  448 /*
  449  * Return the space occupied by the 802.11 header and any
  450  * padding required by the driver.  This works for a
  451  * management or data frame.
  452  */
  453 static __inline int
  454 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
  455 {
  456         int size = ieee80211_hdrsize(data);
  457         if (ic->ic_flags & IEEE80211_F_DATAPAD)
  458                 size = roundup(size, sizeof(uint32_t));
  459         return size;
  460 }
  461 
  462 /*
  463  * Like ieee80211_hdrspace, but handles any type of frame.
  464  */
  465 static __inline int
  466 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
  467 {
  468         int size = ieee80211_anyhdrsize(data);
  469         if (ic->ic_flags & IEEE80211_F_DATAPAD)
  470                 size = roundup(size, sizeof(uint32_t));
  471         return size;
  472 }
  473 
  474 /*
  475  * Notify a driver that beacon state has been updated.
  476  */
  477 static __inline void
  478 ieee80211_beacon_notify(struct ieee80211com *ic, int what)
  479 {
  480         if (ic->ic_state == IEEE80211_S_RUN)
  481                 ic->ic_update_beacon(ic, what);
  482 }
  483 
  484 /*
  485  * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
  486  *
  487  * The intent is that any problem in the net80211 layer can be
  488  * diagnosed by inspecting the statistics (dumped by the wlanstats
  489  * program) and/or the msgs generated by net80211.  Messages are
  490  * broken into functional classes and can be controlled with the
  491  * wlandebug program.  Certain of these msg groups are for facilities
  492  * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1X).
  493  */
  494 #define IEEE80211_MSG_11N       0x80000000      /* 11n mode debug */
  495 #define IEEE80211_MSG_DEBUG     0x40000000      /* IFF_DEBUG equivalent */
  496 #define IEEE80211_MSG_DUMPPKTS  0x20000000      /* IFF_LINK2 equivalant */
  497 #define IEEE80211_MSG_CRYPTO    0x10000000      /* crypto work */
  498 #define IEEE80211_MSG_INPUT     0x08000000      /* input handling */
  499 #define IEEE80211_MSG_XRATE     0x04000000      /* rate set handling */
  500 #define IEEE80211_MSG_ELEMID    0x02000000      /* element id parsing */
  501 #define IEEE80211_MSG_NODE      0x01000000      /* node handling */
  502 #define IEEE80211_MSG_ASSOC     0x00800000      /* association handling */
  503 #define IEEE80211_MSG_AUTH      0x00400000      /* authentication handling */
  504 #define IEEE80211_MSG_SCAN      0x00200000      /* scanning */
  505 #define IEEE80211_MSG_OUTPUT    0x00100000      /* output handling */
  506 #define IEEE80211_MSG_STATE     0x00080000      /* state machine */
  507 #define IEEE80211_MSG_POWER     0x00040000      /* power save handling */
  508 #define IEEE80211_MSG_DOT1X     0x00020000      /* 802.1x authenticator */
  509 #define IEEE80211_MSG_DOT1XSM   0x00010000      /* 802.1x state machine */
  510 #define IEEE80211_MSG_RADIUS    0x00008000      /* 802.1x radius client */
  511 #define IEEE80211_MSG_RADDUMP   0x00004000      /* dump 802.1x radius packets */
  512 #define IEEE80211_MSG_RADKEYS   0x00002000      /* dump 802.1x keys */
  513 #define IEEE80211_MSG_WPA       0x00001000      /* WPA/RSN protocol */
  514 #define IEEE80211_MSG_ACL       0x00000800      /* ACL handling */
  515 #define IEEE80211_MSG_WME       0x00000400      /* WME protocol */
  516 #define IEEE80211_MSG_SUPERG    0x00000200      /* Atheros SuperG protocol */
  517 #define IEEE80211_MSG_DOTH      0x00000100      /* 802.11h support */
  518 #define IEEE80211_MSG_INACT     0x00000080      /* inactivity handling */
  519 #define IEEE80211_MSG_ROAM      0x00000040      /* sta-mode roaming */
  520 #define IEEE80211_MSG_RATECTL   0x00000020      /* tx rate control */
  521 #define IEEE80211_MSG_ACTION    0x00000010      /* action frame handling */
  522 #define IEEE80211_MSG_WDS       0x00000008      /* WDS handling */
  523 #define IEEE80211_MSG_IOCTL     0x00000004      /* ioctl handling */
  524 
  525 #define IEEE80211_MSG_ANY       0xffffffff      /* anything */
  526 
  527 #ifdef IEEE80211_DEBUG
  528 #define ieee80211_msg(_ic, _m)  ((_ic)->ic_debug & (_m))
  529 #define IEEE80211_DPRINTF(_ic, _m, _fmt, ...) do {                      \
  530         if (ieee80211_msg(_ic, _m))                                     \
  531                 ieee80211_note(_ic, _fmt, __VA_ARGS__);         \
  532 } while (0)
  533 #define IEEE80211_NOTE(_ic, _m, _ni, _fmt, ...) do {                    \
  534         if (ieee80211_msg(_ic, _m))                                     \
  535                 ieee80211_note_mac(_ic, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
  536 } while (0)
  537 #define IEEE80211_NOTE_MAC(_ic, _m, _mac, _fmt, ...) do {               \
  538         if (ieee80211_msg(_ic, _m))                                     \
  539                 ieee80211_note_mac(_ic, _mac, _fmt, __VA_ARGS__);       \
  540 } while (0)
  541 #define IEEE80211_NOTE_FRAME(_ic, _m, _wh, _fmt, ...) do {              \
  542         if (ieee80211_msg(_ic, _m))                                     \
  543                 ieee80211_note_frame(_ic, _wh, _fmt, __VA_ARGS__);      \
  544 } while (0)
  545 void    ieee80211_note(struct ieee80211com *ic, const char *fmt, ...);
  546 void    ieee80211_note_mac(struct ieee80211com *ic,
  547                 const uint8_t mac[IEEE80211_ADDR_LEN], const char *fmt, ...);
  548 void    ieee80211_note_frame(struct ieee80211com *ic,
  549                 const struct ieee80211_frame *wh, const char *fmt, ...);
  550 #define ieee80211_msg_debug(_ic) \
  551         ((_ic)->ic_debug & IEEE80211_MSG_DEBUG)
  552 #define ieee80211_msg_dumppkts(_ic) \
  553         ((_ic)->ic_debug & IEEE80211_MSG_DUMPPKTS)
  554 #define ieee80211_msg_input(_ic) \
  555         ((_ic)->ic_debug & IEEE80211_MSG_INPUT)
  556 #define ieee80211_msg_radius(_ic) \
  557         ((_ic)->ic_debug & IEEE80211_MSG_RADIUS)
  558 #define ieee80211_msg_dumpradius(_ic) \
  559         ((_ic)->ic_debug & IEEE80211_MSG_RADDUMP)
  560 #define ieee80211_msg_dumpradkeys(_ic) \
  561         ((_ic)->ic_debug & IEEE80211_MSG_RADKEYS)
  562 #define ieee80211_msg_scan(_ic) \
  563         ((_ic)->ic_debug & IEEE80211_MSG_SCAN)
  564 #define ieee80211_msg_assoc(_ic) \
  565         ((_ic)->ic_debug & IEEE80211_MSG_ASSOC)
  566 
  567 /*
  568  * Emit a debug message about discarding a frame or information
  569  * element.  One format is for extracting the mac address from
  570  * the frame header; the other is for when a header is not
  571  * available or otherwise appropriate.
  572  */
  573 #define IEEE80211_DISCARD(_ic, _m, _wh, _type, _fmt, ...) do {          \
  574         if ((_ic)->ic_debug & (_m))                                     \
  575                 ieee80211_discard_frame(_ic, _wh, _type, _fmt, __VA_ARGS__);\
  576 } while (0)
  577 #define IEEE80211_DISCARD_IE(_ic, _m, _wh, _type, _fmt, ...) do {       \
  578         if ((_ic)->ic_debug & (_m))                                     \
  579                 ieee80211_discard_ie(_ic, _wh, _type, _fmt, __VA_ARGS__);\
  580 } while (0)
  581 #define IEEE80211_DISCARD_MAC(_ic, _m, _mac, _type, _fmt, ...) do {     \
  582         if ((_ic)->ic_debug & (_m))                                     \
  583                 ieee80211_discard_mac(_ic, _mac, _type, _fmt, __VA_ARGS__);\
  584 } while (0)
  585 
  586 void ieee80211_discard_frame(struct ieee80211com *,
  587         const struct ieee80211_frame *, const char *type, const char *fmt, ...);
  588 void ieee80211_discard_ie(struct ieee80211com *,
  589         const struct ieee80211_frame *, const char *type, const char *fmt, ...);
  590 void ieee80211_discard_mac(struct ieee80211com *,
  591         const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
  592         const char *fmt, ...);
  593 #else
  594 #define IEEE80211_DPRINTF(_ic, _m, _fmt, ...)
  595 #define IEEE80211_NOTE(_ic, _m, _ni, _fmt, ...)
  596 #define IEEE80211_NOTE_FRAME(_ic, _m, _wh, _fmt, ...)
  597 #define IEEE80211_NOTE_MAC(_ic, _m, _mac, _fmt, ...)
  598 #define ieee80211_msg_dumppkts(_ic)     0
  599 #define ieee80211_msg(_ic, _m)          0
  600 
  601 #define IEEE80211_DISCARD(_ic, _m, _wh, _type, _fmt, ...)
  602 #define IEEE80211_DISCARD_IE(_ic, _m, _wh, _type, _fmt, ...)
  603 #define IEEE80211_DISCARD_MAC(_ic, _m, _mac, _type, _fmt, ...)
  604 #endif
  605 
  606 #endif /* _NET80211_IEEE80211_VAR_H_ */

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