From 505adc686a0029ab4aa4877118f251a1894a2603 Mon Sep 17 00:00:00 2001 From: sam Date: Mon, 23 Jun 2003 16:55:01 +0000 Subject: new 802.11 layer: o code reorg (relative to old netbsd-derived code) for future growth o drivers now specify available channels and rates and 802.11 layer handles almost all ifmedia actions o multi-mode support for 11a/b/g devices o 11g protocol additions (incomplete) o new element id additions (for other than 11g) o node/station table redone for proper locking and to eliminate driver incestuousness o split device flags and capabilities to reduce confusion and provide room for expansion o incomplete power management infrastructure (need to revisit) o incomplete hooks for software retry o more... --- sys/net80211/ieee80211_var.h | 255 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 255 insertions(+) create mode 100644 sys/net80211/ieee80211_var.h (limited to 'sys/net80211/ieee80211_var.h') diff --git a/sys/net80211/ieee80211_var.h b/sys/net80211/ieee80211_var.h new file mode 100644 index 0000000..99bba55 --- /dev/null +++ b/sys/net80211/ieee80211_var.h @@ -0,0 +1,255 @@ +/*- + * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ +#ifndef _NET80211_IEEE80211_VAR_H_ +#define _NET80211_IEEE80211_VAR_H_ + +/* + * Definitions for IEEE 802.11 drivers. + */ + +#include +#include +#include +#include + +#define IEEE80211_CHAN_MAX 255 +#define IEEE80211_CHAN_ANY 0xffff /* token for ``any channel'' */ +#define IEEE80211_CHAN_ANYC \ + ((struct ieee80211_channel *) IEEE80211_CHAN_ANY) + +enum ieee80211_phytype { + IEEE80211_T_DS, /* direct sequence spread spectrum */ + IEEE80211_T_FH, /* frequency hopping */ + IEEE80211_T_OFDM, /* frequency division multiplexing */ + IEEE80211_T_TURBO, /* high rate OFDM, aka turbo mode */ +}; +#define IEEE80211_T_CCK IEEE80211_T_DS /* more common nomenclature */ + +/* XXX not really a mode; there are really multiple PHY's */ +enum ieee80211_phymode { + IEEE80211_MODE_AUTO = 0, /* autoselect */ + IEEE80211_MODE_11A = 1, /* 5GHz, OFDM */ + IEEE80211_MODE_11B = 2, /* 2GHz, CCK */ + IEEE80211_MODE_11G = 3, /* 2GHz, OFDM */ + IEEE80211_MODE_TURBO = 4, /* 5GHz, OFDM, 2x clock */ +}; +#define IEEE80211_MODE_MAX (IEEE80211_MODE_TURBO+1) + +enum ieee80211_opmode { + IEEE80211_M_STA = 1, /* infrastructure station */ + IEEE80211_M_IBSS = 0, /* IBSS (adhoc) station */ + IEEE80211_M_AHDEMO = 3, /* Old lucent compatible adhoc demo */ + IEEE80211_M_HOSTAP = 6 /* Software Access Point */ +}; + +/* + * Channels are specified by frequency and attributes. + */ +struct ieee80211_channel { + u_int16_t ic_freq; /* setting in Mhz */ + u_int16_t ic_flags; /* see below */ +}; + +/* bits 0-3 are for private use by drivers */ +/* channel attributes */ +#define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */ +#define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */ +#define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */ +#define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */ +#define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */ +#define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */ +#define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */ + +/* + * Useful combinations of channel characteristics. + */ +#define IEEE80211_CHAN_A \ + (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM) +#define IEEE80211_CHAN_B \ + (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK) +#define IEEE80211_CHAN_PUREG \ + (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM) +#define IEEE80211_CHAN_G \ + (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN) +#define IEEE80211_CHAN_T \ + (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO) + +#define IEEE80211_IS_CHAN_A(_c) \ + (((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A) +#define IEEE80211_IS_CHAN_B(_c) \ + (((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B) +#define IEEE80211_IS_CHAN_PUREG(_c) \ + (((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG) +#define IEEE80211_IS_CHAN_G(_c) \ + (((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G) +#define IEEE80211_IS_CHAN_T(_c) \ + (((_c)->ic_flags & IEEE80211_CHAN_T) == IEEE80211_CHAN_T) + +#define IEEE80211_IS_CHAN_2GHZ(_c) \ + (((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0) +#define IEEE80211_IS_CHAN_5GHZ(_c) \ + (((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0) +#define IEEE80211_IS_CHAN_OFDM(_c) \ + (((_c)->ic_flags & IEEE80211_CHAN_OFDM) != 0) +#define IEEE80211_IS_CHAN_CCK(_c) \ + (((_c)->ic_flags & IEEE80211_CHAN_CCK) != 0) + +/* ni_chan encoding for FH phy */ +#define IEEE80211_FH_CHANMOD 80 +#define IEEE80211_FH_CHAN(set,pat) (((set)-1)*IEEE80211_FH_CHANMOD+(pat)) +#define IEEE80211_FH_CHANSET(chan) ((chan)/IEEE80211_FH_CHANMOD+1) +#define IEEE80211_FH_CHANPAT(chan) ((chan)%IEEE80211_FH_CHANMOD) + +struct ieee80211com { + struct arpcom ic_ac; + void (*ic_recv_mgmt)(struct ieee80211com *, + struct mbuf *, int, int, u_int32_t, u_int); + int (*ic_send_mgmt)(struct ieee80211com *, + struct ieee80211_node *, int, int); + int (*ic_newstate)(void *, enum ieee80211_state); + void (*ic_newassoc)(struct ieee80211com *, + struct ieee80211_node *, int); + u_int8_t ic_myaddr[IEEE80211_ADDR_LEN]; + struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX]; + struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX+1]; + u_char ic_chan_avail[roundup(IEEE80211_CHAN_MAX,NBBY)]; + u_char ic_chan_active[roundup(IEEE80211_CHAN_MAX, NBBY)]; + u_char ic_chan_scan[roundup(IEEE80211_CHAN_MAX,NBBY)]; + struct ifqueue ic_mgtq; + u_int32_t ic_flags; /* state flags */ + u_int32_t ic_caps; /* capabilities */ + u_int16_t ic_modecaps; /* set of mode capabilities */ + u_int16_t ic_curmode; /* current mode */ + enum ieee80211_phytype ic_phytype; /* XXX wrong for multi-mode */ + enum ieee80211_opmode ic_opmode; /* operation mode */ + enum ieee80211_state ic_state; /* 802.11 state */ + struct ifmedia ic_media; /* interface media config */ + struct bpf_if *ic_rawbpf; /* packet filter structure */ + struct ieee80211_node *ic_bss; /* information for this node */ + struct ieee80211_channel *ic_ibss_chan; + int ic_fixed_rate; /* index to ic_sup_rates[] */ + u_int16_t ic_rtsthreshold; + u_int16_t ic_fragthreshold; + struct mtx ic_nodelock; /* on node table */ + struct ieee80211_node *(*ic_node_alloc)(struct ieee80211com *); + void (*ic_node_free)(struct ieee80211com *, + struct ieee80211_node *); + void (*ic_node_copy)(struct ieee80211com *, + struct ieee80211_node *, + const struct ieee80211_node *); + TAILQ_HEAD(, ieee80211_node) ic_node; /* information of all nodes */ + LIST_HEAD(, ieee80211_node) ic_hash[IEEE80211_NODE_HASHSIZE]; + u_int16_t ic_lintval; /* listen interval */ + u_int16_t ic_holdover; /* PM hold over duration */ + u_int16_t ic_txmin; /* min tx retry count */ + u_int16_t ic_txmax; /* max tx retry count */ + u_int16_t ic_txlifetime; /* tx lifetime */ + u_int16_t ic_txpower; /* tx power setting (dbM) */ + u_int16_t ic_bmisstimeout;/* beacon miss threshold (ms) */ + int ic_mgt_timer; /* mgmt timeout */ + int ic_inact_timer; /* inactivity timer wait */ + int ic_des_esslen; + u_int8_t ic_des_essid[IEEE80211_NWID_LEN]; + struct ieee80211_channel *ic_des_chan; /* desired channel */ + u_int8_t ic_des_bssid[IEEE80211_ADDR_LEN]; + struct ieee80211_wepkey ic_nw_keys[IEEE80211_WEP_NKID]; + int ic_wep_txkey; /* default tx key index */ + void *ic_wep_ctx; /* wep crypt context */ + u_int32_t ic_iv; /* initial vector for wep */ +}; +#define ic_if ic_ac.ac_if +#define ic_softc ic_if.if_softc + +#define IEEE80211_ADDR_EQ(a1,a2) (memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0) +#define IEEE80211_ADDR_COPY(dst,src) memcpy(dst,src,IEEE80211_ADDR_LEN) + +/* ic_flags */ +#define IEEE80211_F_ASCAN 0x00000001 /* STATUS: active scan */ +#define IEEE80211_F_SIBSS 0x00000002 /* STATUS: start IBSS */ +#define IEEE80211_F_WEPON 0x00000100 /* CONF: WEP enabled */ +#define IEEE80211_F_IBSSON 0x00000200 /* CONF: IBSS creation enable */ +#define IEEE80211_F_PMGTON 0x00000400 /* CONF: Power mgmt enable */ +#define IEEE80211_F_DESBSSID 0x00000800 /* CONF: des_bssid is set */ +#define IEEE80211_F_SCANAP 0x00001000 /* CONF: Scanning AP */ +#define IEEE80211_F_ROAMING 0x00002000 /* CONF: roaming enabled */ +#define IEEE80211_F_SWRETRY 0x00004000 /* CONF: sw tx retry enabled */ +#define IEEE80211_F_TXPMGT 0x00018000 /* STATUS: tx power */ +#define IEEE80211_F_TXPOW_OFF 0x00000000 /* TX Power: radio disabled */ +#define IEEE80211_F_TXPOW_FIXED 0x00008000 /* TX Power: fixed rate */ +#define IEEE80211_F_TXPOW_AUTO 0x00010000 /* TX Power: undefined */ +#define IEEE80211_F_SHSLOT 0x00020000 /* CONF: short slot time */ +#define IEEE80211_F_SHPREAMBLE 0x00040000 /* CONF: short preamble */ + +/* ic_capabilities */ +#define IEEE80211_C_WEP 0x00000001 /* CAPABILITY: WEP available */ +#define IEEE80211_C_IBSS 0x00000002 /* CAPABILITY: IBSS available */ +#define IEEE80211_C_PMGT 0x00000004 /* CAPABILITY: Power mgmt */ +#define IEEE80211_C_HOSTAP 0x00000008 /* CAPABILITY: HOSTAP avail */ +#define IEEE80211_C_AHDEMO 0x00000010 /* CAPABILITY: Old Adhoc Demo */ +#define IEEE80211_C_SWRETRY 0x00000020 /* CAPABILITY: sw tx retry */ +#define IEEE80211_C_TXPMGT 0x00000040 /* CAPABILITY: tx power mgmt */ +#define IEEE80211_C_SHSLOT 0x00000080 /* CAPABILITY: short slottime */ +#define IEEE80211_C_SHPREAMBLE 0x00000100 /* CAPABILITY: short preamble */ + +/* flags for ieee80211_fix_rate() */ +#define IEEE80211_F_DOSORT 0x00000001 /* sort rate list */ +#define IEEE80211_F_DOFRATE 0x00000002 /* use fixed rate */ +#define IEEE80211_F_DONEGO 0x00000004 /* calc negotiated rate */ +#define IEEE80211_F_DODEL 0x00000008 /* delete ignore rate */ + +void ieee80211_ifattach(struct ifnet *); +void ieee80211_ifdetach(struct ifnet *); +void ieee80211_media_init(struct ifnet *, ifm_change_cb_t, ifm_stat_cb_t); +int ieee80211_media_change(struct ifnet *); +void ieee80211_media_status(struct ifnet *, struct ifmediareq *); +int ieee80211_ioctl(struct ifnet *, u_long, caddr_t); +int ieee80211_cfgget(struct ifnet *, u_long, caddr_t); +int ieee80211_cfgset(struct ifnet *, u_long, caddr_t); +void ieee80211_watchdog(struct ifnet *); +int ieee80211_fix_rate(struct ieee80211com *, struct ieee80211_node *, int); +int ieee80211_rate2media(struct ieee80211com *, int, + enum ieee80211_phymode); +int ieee80211_media2rate(int); +u_int ieee80211_mhz2ieee(u_int, u_int); +u_int ieee80211_chan2ieee(struct ieee80211com *, struct ieee80211_channel *); +u_int ieee80211_ieee2mhz(u_int, u_int); +int ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode); +enum ieee80211_phymode ieee80211_chan2mode(struct ieee80211com *, + struct ieee80211_channel *); + +#define IEEE80211_DEBUG +#ifdef IEEE80211_DEBUG +extern int ieee80211_debug; +#define IEEE80211_DPRINTF(X) if (ieee80211_debug) printf X +#define IEEE80211_DPRINTF2(X) if (ieee80211_debug>1) printf X +#else +#define IEEE80211_DPRINTF(X) +#define IEEE80211_DPRINTF2(X) +#endif + +#endif /* _NET80211_IEEE80211_VAR_H_ */ -- cgit v1.1