Annotation of sys/net80211/ieee80211_node.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: ieee80211_node.h,v 1.21 2007/08/03 16:51:06 damien Exp $ */
! 2: /* $NetBSD: ieee80211_node.h,v 1.9 2004/04/30 22:57:32 dyoung Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 2001 Atsushi Onoe
! 6: * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
! 7: * All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice, this list of conditions and the following disclaimer.
! 14: * 2. Redistributions in binary form must reproduce the above copyright
! 15: * notice, this list of conditions and the following disclaimer in the
! 16: * documentation and/or other materials provided with the distribution.
! 17: * 3. The name of the author may not be used to endorse or promote products
! 18: * derived from this software without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 21: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 22: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 23: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 24: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 25: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 26: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 27: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 28: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 29: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 30: *
! 31: * $FreeBSD: src/sys/net80211/ieee80211_node.h,v 1.10 2004/04/05 22:10:26 sam Exp $
! 32: */
! 33: #ifndef _NET80211_IEEE80211_NODE_H_
! 34: #define _NET80211_IEEE80211_NODE_H_
! 35:
! 36: #define IEEE80211_PSCAN_WAIT 5 /* passive scan wait */
! 37: #define IEEE80211_TRANS_WAIT 5 /* transition wait */
! 38: #define IEEE80211_INACT_WAIT 5 /* inactivity timer interval */
! 39: #define IEEE80211_INACT_MAX (300/IEEE80211_INACT_WAIT)
! 40: #define IEEE80211_CACHE_SIZE 100
! 41:
! 42: struct ieee80211_rateset {
! 43: u_int8_t rs_nrates;
! 44: u_int8_t rs_rates[IEEE80211_RATE_MAXSIZE];
! 45: };
! 46:
! 47: extern const struct ieee80211_rateset ieee80211_std_rateset_11a;
! 48: extern const struct ieee80211_rateset ieee80211_std_rateset_11b;
! 49: extern const struct ieee80211_rateset ieee80211_std_rateset_11g;
! 50:
! 51: enum ieee80211_node_state {
! 52: IEEE80211_STA_CACHE, /* cached node */
! 53: IEEE80211_STA_BSS, /* ic->ic_bss, the network we joined */
! 54: IEEE80211_STA_AUTH, /* successfully authenticated */
! 55: IEEE80211_STA_ASSOC, /* successfully associated */
! 56: IEEE80211_STA_COLLECT /* This node remains in the cache while
! 57: * the driver sends a de-auth message;
! 58: * afterward it should be freed to make room
! 59: * for a new node.
! 60: */
! 61: };
! 62:
! 63: #define ieee80211_node_newstate(__ni, __state) \
! 64: do { \
! 65: (__ni)->ni_state = (__state); \
! 66: } while (0)
! 67:
! 68: /*
! 69: * Node specific information. Note that drivers are expected
! 70: * to derive from this structure to add device-specific per-node
! 71: * state. This is done by overriding the ic_node_* methods in
! 72: * the ieee80211com structure.
! 73: */
! 74: struct ieee80211_node {
! 75: RB_ENTRY(ieee80211_node) ni_node;
! 76:
! 77: u_int ni_refcnt;
! 78: u_int ni_scangen; /* gen# for timeout scan */
! 79:
! 80: /* hardware */
! 81: u_int32_t ni_rstamp; /* recv timestamp */
! 82: u_int8_t ni_rssi; /* recv ssi */
! 83:
! 84: /* header */
! 85: u_int8_t ni_macaddr[IEEE80211_ADDR_LEN];
! 86: u_int8_t ni_bssid[IEEE80211_ADDR_LEN];
! 87:
! 88: /* beacon, probe response */
! 89: u_int8_t ni_tstamp[8]; /* from last rcv'd beacon */
! 90: u_int16_t ni_intval; /* beacon interval */
! 91: u_int16_t ni_capinfo; /* capabilities */
! 92: u_int8_t ni_esslen;
! 93: u_int8_t ni_essid[IEEE80211_NWID_LEN];
! 94: struct ieee80211_rateset ni_rates; /* negotiated rate set */
! 95: u_int8_t *ni_country; /* country information XXX */
! 96: struct ieee80211_channel *ni_chan;
! 97: u_int16_t ni_fhdwell; /* FH only */
! 98: u_int8_t ni_fhindex; /* FH only */
! 99: u_int8_t ni_erp; /* 11g only */
! 100:
! 101: #ifdef notyet
! 102: /* DTIM and contention free period (CFP) */
! 103: u_int8_t ni_dtimperiod;
! 104: u_int8_t ni_cfpperiod; /* # of DTIMs between CFPs */
! 105: u_int16_t ni_cfpduremain; /* remaining cfp duration */
! 106: u_int16_t ni_cfpmaxduration;/* max CFP duration in TU */
! 107: u_int16_t ni_nextdtim; /* time to next DTIM */
! 108: u_int16_t ni_timoffset;
! 109: #endif
! 110:
! 111: /* power saving mode */
! 112: u_int8_t ni_pwrsave;
! 113: struct ifqueue ni_savedq; /* packets queued for pspoll */
! 114:
! 115: /* RSN */
! 116: u_int ni_group_cipher;
! 117: enum ieee80211_cipher ni_pairwise_cipher;
! 118: u_int ni_pairwise_cipherset;
! 119: enum ieee80211_akm ni_akm;
! 120: u_int ni_akmset;
! 121: u_int16_t ni_rsncaps;
! 122: int ni_port_valid;
! 123: u_int8_t ni_eapol_desc;
! 124: u_int8_t ni_nonce[EAPOL_KEY_NONCE_LEN];
! 125: u_int64_t ni_replaycnt;
! 126: u_int8_t ni_replaycnt_ok;
! 127: u_int8_t *ni_rsnie;
! 128: struct ieee80211_key ni_pairwise_key;
! 129: struct ieee80211_ptk ni_ptk;
! 130: u_int8_t ni_ptk_ok;
! 131: u_int8_t ni_key_count;
! 132:
! 133: /* others */
! 134: u_int16_t ni_associd; /* assoc response */
! 135: u_int16_t ni_txseq; /* seq to be transmitted */
! 136: u_int16_t ni_rxseq; /* seq previous received */
! 137: u_int16_t ni_qos_txseqs[IEEE80211_NUM_TID];
! 138: u_int16_t ni_qos_rxseqs[IEEE80211_NUM_TID];
! 139: int ni_fails; /* failure count to associate */
! 140: int ni_inact; /* inactivity mark count */
! 141: int ni_txrate; /* index to ni_rates[] */
! 142: int ni_state;
! 143:
! 144: u_int8_t ni_flags; /* special-purpose state */
! 145: #define IEEE80211_NODE_ERP 0x01
! 146: #define IEEE80211_NODE_QOS 0x02
! 147: };
! 148:
! 149: RB_HEAD(ieee80211_tree, ieee80211_node);
! 150:
! 151: #define ieee80211_node_incref(ni) \
! 152: do { \
! 153: int _s = splnet(); \
! 154: (ni)->ni_refcnt++; \
! 155: splx(_s); \
! 156: } while (0)
! 157:
! 158: static __inline int
! 159: ieee80211_node_decref(struct ieee80211_node *ni)
! 160: {
! 161: int refcnt, s;
! 162: s = splnet();
! 163: refcnt = --ni->ni_refcnt;
! 164: splx(s);
! 165: return refcnt;
! 166: }
! 167:
! 168: static __inline struct ieee80211_node *
! 169: ieee80211_ref_node(struct ieee80211_node *ni)
! 170: {
! 171: ieee80211_node_incref(ni);
! 172: return ni;
! 173: }
! 174:
! 175: static __inline void
! 176: ieee80211_unref_node(struct ieee80211_node **ni)
! 177: {
! 178: ieee80211_node_decref(*ni);
! 179: *ni = NULL; /* guard against use */
! 180: }
! 181:
! 182: struct ieee80211com;
! 183:
! 184: #ifdef MALLOC_DECLARE
! 185: MALLOC_DECLARE(M_80211_NODE);
! 186: #endif
! 187:
! 188: extern void ieee80211_node_attach(struct ifnet *);
! 189: extern void ieee80211_node_lateattach(struct ifnet *);
! 190: extern void ieee80211_node_detach(struct ifnet *);
! 191:
! 192: extern void ieee80211_begin_scan(struct ifnet *);
! 193: extern void ieee80211_next_scan(struct ifnet *);
! 194: extern void ieee80211_end_scan(struct ifnet *);
! 195: extern void ieee80211_reset_scan(struct ifnet *);
! 196: extern struct ieee80211_node *ieee80211_alloc_node(struct ieee80211com *,
! 197: const u_int8_t *);
! 198: extern struct ieee80211_node *ieee80211_dup_bss(struct ieee80211com *,
! 199: const u_int8_t *);
! 200: extern struct ieee80211_node *ieee80211_find_node(struct ieee80211com *,
! 201: const u_int8_t *);
! 202: extern struct ieee80211_node *ieee80211_find_rxnode(struct ieee80211com *,
! 203: const struct ieee80211_frame *);
! 204: extern struct ieee80211_node *ieee80211_find_txnode(struct ieee80211com *,
! 205: const u_int8_t *);
! 206: extern struct ieee80211_node *
! 207: ieee80211_find_node_for_beacon(struct ieee80211com *,
! 208: const u_int8_t *, const struct ieee80211_channel *,
! 209: const char *, u_int8_t);
! 210: extern void ieee80211_release_node(struct ieee80211com *,
! 211: struct ieee80211_node *);
! 212: extern void ieee80211_free_allnodes(struct ieee80211com *);
! 213: typedef void ieee80211_iter_func(void *, struct ieee80211_node *);
! 214: extern void ieee80211_iterate_nodes(struct ieee80211com *ic,
! 215: ieee80211_iter_func *, void *);
! 216: extern void ieee80211_clean_nodes(struct ieee80211com *);
! 217: extern int ieee80211_iserp_sta(const struct ieee80211_node *);
! 218:
! 219: extern void ieee80211_node_join(struct ieee80211com *,
! 220: struct ieee80211_node *, int);
! 221: extern void ieee80211_node_leave(struct ieee80211com *,
! 222: struct ieee80211_node *);
! 223: extern int ieee80211_match_bss(struct ieee80211com *,
! 224: struct ieee80211_node *);
! 225: extern void ieee80211_create_ibss(struct ieee80211com* ,
! 226: struct ieee80211_channel *);
! 227:
! 228: extern int ieee80211_node_cmp(const struct ieee80211_node *,
! 229: const struct ieee80211_node *);
! 230: RB_PROTOTYPE(ieee80211_tree, ieee80211_node, ni_node, ieee80211_node_cmp);
! 231:
! 232: #endif /* _NET80211_IEEE80211_NODE_H_ */
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