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freebsd-skq/sys/net80211/ieee80211_var.h

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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...
2003-06-23 16:55:01 +00:00
/*-
revise copyright notices per discussion with Atsushi Onoe <onoe@sm.sony.co.jp>
2003-06-27 05:13:52 +00:00
* Copyright (c) 2001 Atsushi Onoe
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...
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* 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.
revise copyright notices per discussion with Atsushi Onoe <onoe@sm.sony.co.jp>
2003-06-27 05:13:52 +00:00
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
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...
2003-06-23 16:55:01 +00:00
*
revise copyright notices per discussion with Atsushi Onoe <onoe@sm.sony.co.jp>
2003-06-27 05:13:52 +00:00
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
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...
2003-06-23 16:55:01 +00:00
*
* $FreeBSD$
*/
#ifndef _NET80211_IEEE80211_VAR_H_
#define _NET80211_IEEE80211_VAR_H_
/*
* Definitions for IEEE 802.11 drivers.
*/
#include <net80211/ieee80211.h>
#include <net80211/ieee80211_crypto.h>
#include <net80211/ieee80211_node.h>
#include <net80211/ieee80211_proto.h>
#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 */
add monitor mode
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IEEE80211_M_HOSTAP = 6, /* Software Access Point */
IEEE80211_M_MONITOR = 8 /* Monitor mode */
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...
2003-06-23 16:55:01 +00:00
};
/*
* 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 *,
MFp4 changes to fix locking issues and correct reference count handling of station entries in hostap mode: Input path: o driver is now expected to find the node associated with the sender of a received frame; use ic_bss if none is located o driver passes the (referenced) node into ieee80211_input for use within the wlan module and is responsible for cleaning up on return o the antenna state is no longer passed up with each frame; this is now considered driver-private state and drivers are responsible for keeping it in the driver-private part of a node Output path: Revamp output path for management frames to eliminate redundant locking that causes problems and to correct reference counting bogosity that occurs when stations are timed out due to inactivity (in AP mode). On output the refcnt'd node is stashed in the pkthdr's recvif field (yech) and retrieved by the driver. This eliminates an unref/ref scenario and related node table unlock/lock due to the driver looking up the node. This is particularly important when stations are timed out as this causes a lock order reversal that can result in a deadlock. As a byproduct we also reduce the overhead for sending management frames (minimal). Additional fallout from this is a change to ieee80211_encap to return a refcn't node for tieing to the outbound frame. Node refcnts are not reclaimed until after a frame is completely processed (e.g. in the tx interrupt handler). This is especially important for timed out stations as this deref will be the final one causing the node entry to be reclaimed. Additional semi-related changes: o replace m_copym use with m_copypacket (optimization) o add assert to verify ic_bss is never free'd during normal operation o add comments explaining calling conventions by drivers for frames going in each direction o remove extraneous code that "cannot be executed" (e.g. because pointers may never be null)
2003-08-19 22:17:04 +00:00
struct mbuf *, struct ieee80211_node *,
int, int, u_int32_t);
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...
2003-06-23 16:55:01 +00:00
int (*ic_send_mgmt)(struct ieee80211com *,
struct ieee80211_node *, int, int);
o change ieee80211_new_state handling to use a proper method that drivers override in their sub-class; this eliminates the hack of interpreting the EINPROGRESS return value to mean "don't do any of the normal work" o correct active scanning so the first channel is only scanned once and so per-channel passive mode is properly honored o expose 802.11 FSM state names so every driver doesn't keep a private copy o eliminate node parameter to ieee80211_begin_scan; it was not being used
2003-07-20 21:36:08 +00:00
int (*ic_newstate)(struct ieee80211com *,
enum ieee80211_state, int);
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...
2003-06-23 16:55:01 +00:00
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 */
Try yet again to deal with timing out nodes. We cannot hold the node lock while sending a management frame as this will potentially result in a LOR with a driver lock. This doesn't happen for the Atheros driver but does for the wi driver. Use a generation number to help process each node once when scanning the node table and drop the node lock if we need to timeout a node and send a frame.
2003-09-26 17:00:44 +00:00
u_int ic_scangen; /* gen# for timeout scan */
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...
2003-06-23 16:55:01 +00:00
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 *);
Generalize the per-node RSSI data so drivers can do more interesting things than record a single value. o add a per-node method for returning the "current RSSI" for a node o create a default method that returns ni_rssi which is the rssi for the last received frame o use the per-node "get rssi" method to return data for the RID's submitted by wicontrol, et. al. Loosely based on work by Tom Marshall <tommy@home.tig-grr.com> for MADWIFI.
2003-09-15 22:28:07 +00:00
u_int8_t (*ic_node_getrssi)(struct ieee80211com *,
struct ieee80211_node *);
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...
2003-06-23 16:55:01 +00:00
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 */
add monitor mode
2003-07-21 02:49:42 +00:00
#define IEEE80211_C_MONITOR 0x00000200 /* CAPABILITY: monitor mode */
o add capability to indicate if device receives all management frames o use recv mgmt capability to decide if outbound frames should be discarded if no node table entry is present
2003-10-17 21:54:59 +00:00
#define IEEE80211_C_RCVMGT 0x00000400 /* CAPABILITY: rcv mgt frames */
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...
2003-06-23 16:55:01 +00:00
/* 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_ */
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