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


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_node.h

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 2001 Atsushi Onoe
    3  * Copyright (c) 2002, 2003 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  * 3. The name of the author may not be used to endorse or promote products
   15  *    derived from this software without specific prior written permission.
   16  *
   17  * Alternatively, this software may be distributed under the terms of the
   18  * GNU General Public License ("GPL") version 2 as published by the Free
   19  * Software Foundation.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   31  *
   32  * $FreeBSD: releng/5.2/sys/net80211/ieee80211_node.h 121172 2003-10-17 21:41:52Z sam $
   33  */
   34 #ifndef _NET80211_IEEE80211_NODE_H_
   35 #define _NET80211_IEEE80211_NODE_H_
   36 
   37 #define IEEE80211_PSCAN_WAIT    5               /* passive scan wait */
   38 #define IEEE80211_TRANS_WAIT    5               /* transition wait */
   39 #define IEEE80211_INACT_WAIT    5               /* inactivity timer interval */
   40 #define IEEE80211_INACT_MAX     (300/IEEE80211_INACT_WAIT)
   41 
   42 #define IEEE80211_NODE_HASHSIZE 32
   43 /* simple hash is enough for variation of macaddr */
   44 #define IEEE80211_NODE_HASH(addr)       \
   45         (((u_int8_t *)(addr))[IEEE80211_ADDR_LEN - 1] % IEEE80211_NODE_HASHSIZE)
   46 
   47 #define IEEE80211_RATE_SIZE     8               /* 802.11 standard */
   48 #define IEEE80211_RATE_MAXSIZE  15              /* max rates we'll handle */
   49 
   50 struct ieee80211_rateset {
   51         u_int8_t                rs_nrates;
   52         u_int8_t                rs_rates[IEEE80211_RATE_MAXSIZE];
   53 };
   54 
   55 /*
   56  * Node specific information.  Note that drivers are expected
   57  * to derive from this structure to add device-specific per-node
   58  * state.  This is done by overriding the ic_node_* methods in
   59  * the ieee80211com structure.
   60  */
   61 struct ieee80211_node {
   62         TAILQ_ENTRY(ieee80211_node)     ni_list;
   63         LIST_ENTRY(ieee80211_node)      ni_hash;
   64         u_int                   ni_refcnt;
   65         u_int                   ni_scangen;     /* gen# for timeout scan */
   66 
   67         /* hardware */
   68         u_int32_t               ni_rstamp;      /* recv timestamp */
   69         u_int8_t                ni_rssi;        /* recv ssi */
   70 
   71         /* header */
   72         u_int8_t                ni_macaddr[IEEE80211_ADDR_LEN];
   73         u_int8_t                ni_bssid[IEEE80211_ADDR_LEN];
   74 
   75         /* beacon, probe response */
   76         u_int8_t                ni_tstamp[8];   /* from last rcv'd beacon */
   77         u_int16_t               ni_intval;      /* beacon interval */
   78         u_int16_t               ni_capinfo;     /* capabilities */
   79         u_int8_t                ni_esslen;
   80         u_int8_t                ni_essid[IEEE80211_NWID_LEN];
   81         struct ieee80211_rateset ni_rates;      /* negotiated rate set */
   82         u_int8_t                *ni_country;    /* country information XXX */
   83         struct ieee80211_channel *ni_chan;
   84         u_int16_t               ni_fhdwell;     /* FH only */
   85         u_int8_t                ni_fhindex;     /* FH only */
   86         u_int8_t                ni_erp;         /* 11g only */
   87 
   88 #ifdef notyet
   89         /* DTIM and contention free period (CFP) */
   90         u_int8_t                ni_dtimperiod;
   91         u_int8_t                ni_cfpperiod;   /* # of DTIMs between CFPs */
   92         u_int16_t               ni_cfpduremain; /* remaining cfp duration */
   93         u_int16_t               ni_cfpmaxduration;/* max CFP duration in TU */
   94         u_int16_t               ni_nextdtim;    /* time to next DTIM */
   95         u_int16_t               ni_timoffset;
   96 #endif
   97 
   98         /* others */
   99         u_int16_t               ni_associd;     /* assoc response */
  100         u_int16_t               ni_txseq;       /* seq to be transmitted */
  101         u_int16_t               ni_rxseq;       /* seq previous received */
  102         int                     ni_fails;       /* failure count to associate */
  103         int                     ni_inact;       /* inactivity mark count */
  104         int                     ni_txrate;      /* index to ni_rates[] */
  105 };
  106 
  107 static __inline struct ieee80211_node *
  108 ieee80211_ref_node(struct ieee80211_node *ni)
  109 {
  110         atomic_add_int(&ni->ni_refcnt, 1);
  111         return ni;
  112 }
  113 
  114 static __inline void
  115 ieee80211_unref_node(struct ieee80211_node **ni)
  116 {
  117         atomic_subtract_int(&(*ni)->ni_refcnt, 1);
  118         *ni = NULL;                     /* guard against use */
  119 }
  120 
  121 #define IEEE80211_NODE_LOCK_INIT(_ic, _name) \
  122         mtx_init(&(_ic)->ic_nodelock, _name, "802.11 node table", MTX_DEF)
  123 #define IEEE80211_NODE_LOCK_DESTROY(_ic)        mtx_destroy(&(_ic)->ic_nodelock)
  124 #define IEEE80211_NODE_LOCK(_ic)                mtx_lock(&(_ic)->ic_nodelock)
  125 #define IEEE80211_NODE_UNLOCK(_ic)              mtx_unlock(&(_ic)->ic_nodelock)
  126 #define IEEE80211_NODE_LOCK_ASSERT(_ic) \
  127         mtx_assert(&(_ic)->ic_nodelock, MA_OWNED)
  128 
  129 struct ieee80211com;
  130 
  131 extern  void ieee80211_node_attach(struct ifnet *);
  132 extern  void ieee80211_node_lateattach(struct ifnet *);
  133 extern  void ieee80211_node_detach(struct ifnet *);
  134 
  135 extern  void ieee80211_begin_scan(struct ifnet *);
  136 extern  void ieee80211_next_scan(struct ifnet *);
  137 extern  void ieee80211_end_scan(struct ifnet *);
  138 extern  struct ieee80211_node *ieee80211_alloc_node(struct ieee80211com *,
  139                 u_int8_t *);
  140 extern  struct ieee80211_node *ieee80211_dup_bss(struct ieee80211com *,
  141                 u_int8_t *);
  142 extern  struct ieee80211_node *ieee80211_find_node(struct ieee80211com *,
  143                 u_int8_t *);
  144 extern  struct ieee80211_node * ieee80211_lookup_node(struct ieee80211com *,
  145                 u_int8_t *macaddr, struct ieee80211_channel *);
  146 extern  void ieee80211_free_node(struct ieee80211com *,
  147                 struct ieee80211_node *);
  148 extern  void ieee80211_free_allnodes(struct ieee80211com *);
  149 typedef void ieee80211_iter_func(void *, struct ieee80211_node *);
  150 extern  void ieee80211_iterate_nodes(struct ieee80211com *ic,
  151                 ieee80211_iter_func *, void *);
  152 extern  void ieee80211_timeout_nodes(struct ieee80211com *);
  153 
  154 extern  void ieee80211_create_ibss(struct ieee80211com* ,
  155                 struct ieee80211_channel *);
  156 #endif /* _NET80211_IEEE80211_NODE_H_ */

Cache object: 7e2881338750703ce55eb6003020102d


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.