f48dd16155
o add support for controlling the 11g protection mechanism used to protect OFDM frames in a mixed 11b/g network Reviewed by: imp
295 lines
12 KiB
C
295 lines
12 KiB
C
/*-
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* Copyright (c) 2001 Atsushi Onoe
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* Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NET80211_IEEE80211_VAR_H_
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#define _NET80211_IEEE80211_VAR_H_
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/*
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* Definitions for IEEE 802.11 drivers.
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*/
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#include <net80211/ieee80211.h>
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#include <net80211/ieee80211_crypto.h>
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#include <net80211/ieee80211_ioctl.h> /* for ieee80211_stats */
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#include <net80211/ieee80211_node.h>
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#include <net80211/ieee80211_proto.h>
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#define IEEE80211_CHAN_MAX 255
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#define IEEE80211_CHAN_ANY 0xffff /* token for ``any channel'' */
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#define IEEE80211_CHAN_ANYC \
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((struct ieee80211_channel *) IEEE80211_CHAN_ANY)
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#define IEEE80211_TXPOWER_MAX 100 /* max power */
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#define IEEE80211_TXPOWER_MIN 0 /* kill radio (if possible) */
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enum ieee80211_phytype {
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IEEE80211_T_DS, /* direct sequence spread spectrum */
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IEEE80211_T_FH, /* frequency hopping */
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IEEE80211_T_OFDM, /* frequency division multiplexing */
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IEEE80211_T_TURBO, /* high rate OFDM, aka turbo mode */
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};
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#define IEEE80211_T_CCK IEEE80211_T_DS /* more common nomenclature */
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/* XXX not really a mode; there are really multiple PHY's */
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enum ieee80211_phymode {
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IEEE80211_MODE_AUTO = 0, /* autoselect */
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IEEE80211_MODE_11A = 1, /* 5GHz, OFDM */
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IEEE80211_MODE_11B = 2, /* 2GHz, CCK */
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IEEE80211_MODE_11G = 3, /* 2GHz, OFDM */
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IEEE80211_MODE_FH = 4, /* 2GHz, GFSK */
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IEEE80211_MODE_TURBO = 5, /* 5GHz, OFDM, 2x clock */
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};
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#define IEEE80211_MODE_MAX (IEEE80211_MODE_TURBO+1)
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enum ieee80211_opmode {
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IEEE80211_M_STA = 1, /* infrastructure station */
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IEEE80211_M_IBSS = 0, /* IBSS (adhoc) station */
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IEEE80211_M_AHDEMO = 3, /* Old lucent compatible adhoc demo */
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IEEE80211_M_HOSTAP = 6, /* Software Access Point */
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IEEE80211_M_MONITOR = 8 /* Monitor mode */
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};
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/*
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* 802.11g protection mode.
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*/
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enum ieee80211_protmode {
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IEEE80211_PROT_NONE = 0, /* no protection */
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IEEE80211_PROT_CTSONLY = 1, /* CTS to self */
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IEEE80211_PROT_RTSCTS = 2, /* RTS-CTS */
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};
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/*
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* Channels are specified by frequency and attributes.
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*/
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struct ieee80211_channel {
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u_int16_t ic_freq; /* setting in Mhz */
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u_int16_t ic_flags; /* see below */
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};
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/* bits 0-3 are for private use by drivers */
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/* channel attributes */
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#define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */
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#define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */
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#define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */
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#define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */
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#define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */
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#define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */
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#define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */
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#define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */
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/*
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* Useful combinations of channel characteristics.
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*/
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#define IEEE80211_CHAN_FHSS \
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(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
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#define IEEE80211_CHAN_A \
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(IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
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#define IEEE80211_CHAN_B \
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(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
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#define IEEE80211_CHAN_PUREG \
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(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
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#define IEEE80211_CHAN_G \
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(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
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#define IEEE80211_CHAN_T \
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(IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
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#define IEEE80211_IS_CHAN_FHSS(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS)
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#define IEEE80211_IS_CHAN_A(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A)
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#define IEEE80211_IS_CHAN_B(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B)
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#define IEEE80211_IS_CHAN_PUREG(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG)
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#define IEEE80211_IS_CHAN_G(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G)
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#define IEEE80211_IS_CHAN_T(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_T) == IEEE80211_CHAN_T)
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#define IEEE80211_IS_CHAN_2GHZ(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0)
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#define IEEE80211_IS_CHAN_5GHZ(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0)
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#define IEEE80211_IS_CHAN_OFDM(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_OFDM) != 0)
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#define IEEE80211_IS_CHAN_CCK(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_CCK) != 0)
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#define IEEE80211_IS_CHAN_GFSK(_c) \
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(((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0)
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/* ni_chan encoding for FH phy */
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#define IEEE80211_FH_CHANMOD 80
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#define IEEE80211_FH_CHAN(set,pat) (((set)-1)*IEEE80211_FH_CHANMOD+(pat))
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#define IEEE80211_FH_CHANSET(chan) ((chan)/IEEE80211_FH_CHANMOD+1)
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#define IEEE80211_FH_CHANPAT(chan) ((chan)%IEEE80211_FH_CHANMOD)
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struct ieee80211com {
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struct arpcom ic_ac;
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void (*ic_recv_mgmt)(struct ieee80211com *,
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struct mbuf *, struct ieee80211_node *,
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int, int, u_int32_t);
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int (*ic_send_mgmt)(struct ieee80211com *,
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struct ieee80211_node *, int, int);
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int (*ic_newstate)(struct ieee80211com *,
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enum ieee80211_state, int);
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void (*ic_newassoc)(struct ieee80211com *,
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struct ieee80211_node *, int);
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u_int8_t ic_myaddr[IEEE80211_ADDR_LEN];
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struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
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struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX+1];
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u_char ic_chan_avail[roundup(IEEE80211_CHAN_MAX,NBBY)];
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u_char ic_chan_active[roundup(IEEE80211_CHAN_MAX, NBBY)];
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u_char ic_chan_scan[roundup(IEEE80211_CHAN_MAX,NBBY)];
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struct ifqueue ic_mgtq;
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u_int32_t ic_flags; /* state flags */
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u_int32_t ic_caps; /* capabilities */
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u_int16_t ic_modecaps; /* set of mode capabilities */
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u_int16_t ic_curmode; /* current mode */
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enum ieee80211_phytype ic_phytype; /* XXX wrong for multi-mode */
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enum ieee80211_opmode ic_opmode; /* operation mode */
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enum ieee80211_state ic_state; /* 802.11 state */
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enum ieee80211_protmode ic_protmode; /* 802.11g protection mode */
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struct ifmedia ic_media; /* interface media config */
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struct bpf_if *ic_rawbpf; /* packet filter structure */
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struct ieee80211_node *ic_bss; /* information for this node */
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struct ieee80211_channel *ic_ibss_chan;
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int ic_fixed_rate; /* index to ic_sup_rates[] */
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u_int16_t ic_rtsthreshold;
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u_int16_t ic_fragthreshold;
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struct mtx ic_nodelock; /* on node table */
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u_int ic_scangen; /* gen# for timeout scan */
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struct ieee80211_node *(*ic_node_alloc)(struct ieee80211com *);
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void (*ic_node_free)(struct ieee80211com *,
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struct ieee80211_node *);
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void (*ic_node_copy)(struct ieee80211com *,
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struct ieee80211_node *,
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const struct ieee80211_node *);
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u_int8_t (*ic_node_getrssi)(struct ieee80211com *,
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struct ieee80211_node *);
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TAILQ_HEAD(, ieee80211_node) ic_node; /* information of all nodes */
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LIST_HEAD(, ieee80211_node) ic_hash[IEEE80211_NODE_HASHSIZE];
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u_int16_t ic_lintval; /* listen interval */
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u_int16_t ic_holdover; /* PM hold over duration */
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u_int16_t ic_txmin; /* min tx retry count */
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u_int16_t ic_txmax; /* max tx retry count */
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u_int16_t ic_txlifetime; /* tx lifetime */
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u_int16_t ic_txpower; /* tx power setting (dbM) */
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u_int16_t ic_bmisstimeout;/* beacon miss threshold (ms) */
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int ic_mgt_timer; /* mgmt timeout */
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int ic_inact_timer; /* inactivity timer wait */
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int ic_des_esslen;
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u_int8_t ic_des_essid[IEEE80211_NWID_LEN];
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struct ieee80211_channel *ic_des_chan; /* desired channel */
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u_int8_t ic_des_bssid[IEEE80211_ADDR_LEN];
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struct ieee80211_wepkey ic_nw_keys[IEEE80211_WEP_NKID];
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int ic_wep_txkey; /* default tx key index */
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void *ic_wep_ctx; /* wep crypt context */
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u_int32_t ic_iv; /* initial vector for wep */
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struct ieee80211_stats ic_stats; /* statistics */
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};
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#define ic_if ic_ac.ac_if
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#define ic_softc ic_if.if_softc
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#define IEEE80211_ADDR_EQ(a1,a2) (memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
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#define IEEE80211_ADDR_COPY(dst,src) memcpy(dst,src,IEEE80211_ADDR_LEN)
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/* ic_flags */
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#define IEEE80211_F_ASCAN 0x00000001 /* STATUS: active scan */
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#define IEEE80211_F_SIBSS 0x00000002 /* STATUS: start IBSS */
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#define IEEE80211_F_WEPON 0x00000100 /* CONF: WEP enabled */
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#define IEEE80211_F_IBSSON 0x00000200 /* CONF: IBSS creation enable */
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#define IEEE80211_F_PMGTON 0x00000400 /* CONF: Power mgmt enable */
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#define IEEE80211_F_DESBSSID 0x00000800 /* CONF: des_bssid is set */
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#define IEEE80211_F_SCANAP 0x00001000 /* CONF: Scanning AP */
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#define IEEE80211_F_ROAMING 0x00002000 /* CONF: roaming enabled */
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#define IEEE80211_F_SWRETRY 0x00004000 /* CONF: sw tx retry enabled */
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#define IEEE80211_F_TXPMGT 0x00018000 /* STATUS: tx power */
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#define IEEE80211_F_TXPOW_OFF 0x00000000 /* TX Power: radio disabled */
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#define IEEE80211_F_TXPOW_FIXED 0x00008000 /* TX Power: fixed rate */
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#define IEEE80211_F_TXPOW_AUTO 0x00010000 /* TX Power: undefined */
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#define IEEE80211_F_SHSLOT 0x00020000 /* CONF: short slot time */
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#define IEEE80211_F_SHPREAMBLE 0x00040000 /* CONF: short preamble */
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#define IEEE80211_F_USEPROT 0x00100000 /* STATUS: protection enabled */
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#define IEEE80211_F_USEBARKER 0x00200000 /* STATUS: use barker preamble*/
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/* ic_caps */
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#define IEEE80211_C_WEP 0x00000001 /* CAPABILITY: WEP available */
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#define IEEE80211_C_IBSS 0x00000002 /* CAPABILITY: IBSS available */
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#define IEEE80211_C_PMGT 0x00000004 /* CAPABILITY: Power mgmt */
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#define IEEE80211_C_HOSTAP 0x00000008 /* CAPABILITY: HOSTAP avail */
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#define IEEE80211_C_AHDEMO 0x00000010 /* CAPABILITY: Old Adhoc Demo */
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#define IEEE80211_C_SWRETRY 0x00000020 /* CAPABILITY: sw tx retry */
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#define IEEE80211_C_TXPMGT 0x00000040 /* CAPABILITY: tx power mgmt */
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#define IEEE80211_C_SHSLOT 0x00000080 /* CAPABILITY: short slottime */
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#define IEEE80211_C_SHPREAMBLE 0x00000100 /* CAPABILITY: short preamble */
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#define IEEE80211_C_MONITOR 0x00000200 /* CAPABILITY: monitor mode */
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#define IEEE80211_C_RCVMGT 0x00000400 /* CAPABILITY: rcv mgt frames */
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/* flags for ieee80211_fix_rate() */
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#define IEEE80211_F_DOSORT 0x00000001 /* sort rate list */
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#define IEEE80211_F_DOFRATE 0x00000002 /* use fixed rate */
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#define IEEE80211_F_DONEGO 0x00000004 /* calc negotiated rate */
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#define IEEE80211_F_DODEL 0x00000008 /* delete ignore rate */
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void ieee80211_ifattach(struct ifnet *);
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void ieee80211_ifdetach(struct ifnet *);
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void ieee80211_media_init(struct ifnet *, ifm_change_cb_t, ifm_stat_cb_t);
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int ieee80211_media_change(struct ifnet *);
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void ieee80211_media_status(struct ifnet *, struct ifmediareq *);
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int ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
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int ieee80211_cfgget(struct ifnet *, u_long, caddr_t);
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int ieee80211_cfgset(struct ifnet *, u_long, caddr_t);
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void ieee80211_watchdog(struct ifnet *);
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int ieee80211_fix_rate(struct ieee80211com *, struct ieee80211_node *, int);
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int ieee80211_rate2media(struct ieee80211com *, int,
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enum ieee80211_phymode);
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int ieee80211_media2rate(int);
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u_int ieee80211_mhz2ieee(u_int, u_int);
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u_int ieee80211_chan2ieee(struct ieee80211com *, struct ieee80211_channel *);
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u_int ieee80211_ieee2mhz(u_int, u_int);
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int ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
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enum ieee80211_phymode ieee80211_chan2mode(struct ieee80211com *,
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struct ieee80211_channel *);
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#define IEEE80211_DEBUG
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#ifdef IEEE80211_DEBUG
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extern int ieee80211_debug;
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#define IEEE80211_DPRINTF(X) if (ieee80211_debug) printf X
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#define IEEE80211_DPRINTF2(X) if (ieee80211_debug>1) printf X
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#else
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#define IEEE80211_DPRINTF(X)
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#define IEEE80211_DPRINTF2(X)
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#endif
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#endif /* _NET80211_IEEE80211_VAR_H_ */
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