2003-06-23 16:55:01 +00:00
|
|
|
/*-
|
2003-06-27 05:13:52 +00:00
|
|
|
* Copyright (c) 2001 Atsushi Onoe
|
2009-01-08 17:12:47 +00:00
|
|
|
* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
|
2003-06-23 16:55:01 +00:00
|
|
|
* 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
|
2003-06-27 05:13:52 +00:00
|
|
|
* 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.
|
2003-06-23 16:55:01 +00:00
|
|
|
*
|
2003-06-27 05:13:52 +00:00
|
|
|
* 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.
|
2003-06-23 16:55:01 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* IEEE 802.11 generic handler
|
|
|
|
*/
|
2008-04-20 20:35:46 +00:00
|
|
|
#include "opt_wlan.h"
|
2003-06-23 16:55:01 +00:00
|
|
|
|
|
|
|
#include <sys/param.h>
|
2009-05-02 15:14:18 +00:00
|
|
|
#include <sys/systm.h>
|
2003-06-23 16:55:01 +00:00
|
|
|
#include <sys/kernel.h>
|
2008-09-03 20:33:11 +00:00
|
|
|
|
2004-12-08 17:26:47 +00:00
|
|
|
#include <sys/socket.h>
|
|
|
|
|
2003-06-23 16:55:01 +00:00
|
|
|
#include <net/if.h>
|
2013-10-26 17:58:36 +00:00
|
|
|
#include <net/if_var.h>
|
2008-04-20 20:35:46 +00:00
|
|
|
#include <net/if_dl.h>
|
2003-06-23 16:55:01 +00:00
|
|
|
#include <net/if_media.h>
|
2008-04-20 20:35:46 +00:00
|
|
|
#include <net/if_types.h>
|
2003-06-23 16:55:01 +00:00
|
|
|
#include <net/ethernet.h>
|
|
|
|
|
|
|
|
#include <net80211/ieee80211_var.h>
|
2008-04-20 20:35:46 +00:00
|
|
|
#include <net80211/ieee80211_regdomain.h>
|
2009-03-24 20:39:08 +00:00
|
|
|
#ifdef IEEE80211_SUPPORT_SUPERG
|
|
|
|
#include <net80211/ieee80211_superg.h>
|
|
|
|
#endif
|
2010-04-07 15:29:13 +00:00
|
|
|
#include <net80211/ieee80211_ratectl.h>
|
2003-06-23 16:55:01 +00:00
|
|
|
|
|
|
|
#include <net/bpf.h>
|
|
|
|
|
2008-05-11 23:33:56 +00:00
|
|
|
const char *ieee80211_phymode_name[IEEE80211_MODE_MAX] = {
|
|
|
|
[IEEE80211_MODE_AUTO] = "auto",
|
|
|
|
[IEEE80211_MODE_11A] = "11a",
|
|
|
|
[IEEE80211_MODE_11B] = "11b",
|
|
|
|
[IEEE80211_MODE_11G] = "11g",
|
|
|
|
[IEEE80211_MODE_FH] = "FH",
|
|
|
|
[IEEE80211_MODE_TURBO_A] = "turboA",
|
|
|
|
[IEEE80211_MODE_TURBO_G] = "turboG",
|
|
|
|
[IEEE80211_MODE_STURBO_A] = "sturboA",
|
2009-02-19 05:21:54 +00:00
|
|
|
[IEEE80211_MODE_HALF] = "half",
|
|
|
|
[IEEE80211_MODE_QUARTER] = "quarter",
|
2008-05-11 23:33:56 +00:00
|
|
|
[IEEE80211_MODE_11NA] = "11na",
|
|
|
|
[IEEE80211_MODE_11NG] = "11ng",
|
2003-06-23 16:55:01 +00:00
|
|
|
};
|
2008-05-12 00:15:30 +00:00
|
|
|
/* map ieee80211_opmode to the corresponding capability bit */
|
|
|
|
const int ieee80211_opcap[IEEE80211_OPMODE_MAX] = {
|
|
|
|
[IEEE80211_M_IBSS] = IEEE80211_C_IBSS,
|
|
|
|
[IEEE80211_M_WDS] = IEEE80211_C_WDS,
|
|
|
|
[IEEE80211_M_STA] = IEEE80211_C_STA,
|
|
|
|
[IEEE80211_M_AHDEMO] = IEEE80211_C_AHDEMO,
|
|
|
|
[IEEE80211_M_HOSTAP] = IEEE80211_C_HOSTAP,
|
|
|
|
[IEEE80211_M_MONITOR] = IEEE80211_C_MONITOR,
|
Implementation of the upcoming Wireless Mesh standard, 802.11s, on the
net80211 wireless stack. This work is based on the March 2009 D3.0 draft
standard. This standard is expected to become final next year.
This includes two main net80211 modules, ieee80211_mesh.c
which deals with peer link management, link metric calculation,
routing table control and mesh configuration and ieee80211_hwmp.c
which deals with the actually routing process on the mesh network.
HWMP is the mandatory routing protocol on by the mesh standard, but
others, such as RA-OLSR, can be implemented.
Authentication and encryption are not implemented.
There are several scripts under tools/tools/net80211/scripts that can be
used to test different mesh network topologies and they also teach you
how to setup a mesh vap (for the impatient: ifconfig wlan0 create
wlandev ... wlanmode mesh).
A new build option is available: IEEE80211_SUPPORT_MESH and it's enabled
by default on GENERIC kernels for i386, amd64, sparc64 and pc98.
Drivers that support mesh networks right now are: ath, ral and mwl.
More information at: http://wiki.freebsd.org/WifiMesh
Please note that this work is experimental. Also, please note that
bridging a mesh vap with another network interface is not yet supported.
Many thanks to the FreeBSD Foundation for sponsoring this project and to
Sam Leffler for his support.
Also, I would like to thank Gateworks Corporation for sending me a
Cambria board which was used during the development of this project.
Reviewed by: sam
Approved by: re (kensmith)
Obtained from: projects/mesh11s
2009-07-11 15:02:45 +00:00
|
|
|
#ifdef IEEE80211_SUPPORT_MESH
|
|
|
|
[IEEE80211_M_MBSS] = IEEE80211_C_MBSS,
|
|
|
|
#endif
|
2008-05-12 00:15:30 +00:00
|
|
|
};
|
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
static const uint8_t ieee80211broadcastaddr[IEEE80211_ADDR_LEN] =
|
|
|
|
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
|
|
|
|
|
|
|
|
static void ieee80211_syncflag_locked(struct ieee80211com *ic, int flag);
|
2009-06-07 22:00:22 +00:00
|
|
|
static void ieee80211_syncflag_ht_locked(struct ieee80211com *ic, int flag);
|
2008-04-20 20:35:46 +00:00
|
|
|
static void ieee80211_syncflag_ext_locked(struct ieee80211com *ic, int flag);
|
|
|
|
static int ieee80211_media_setup(struct ieee80211com *ic,
|
|
|
|
struct ifmedia *media, int caps, int addsta,
|
|
|
|
ifm_change_cb_t media_change, ifm_stat_cb_t media_stat);
|
|
|
|
static void ieee80211com_media_status(struct ifnet *, struct ifmediareq *);
|
|
|
|
static int ieee80211com_media_change(struct ifnet *);
|
|
|
|
static int media_status(enum ieee80211_opmode,
|
|
|
|
const struct ieee80211_channel *);
|
|
|
|
|
|
|
|
MALLOC_DEFINE(M_80211_VAP, "80211vap", "802.11 vap state");
|
2003-06-23 16:55:01 +00:00
|
|
|
|
2006-11-26 22:48:03 +00:00
|
|
|
/*
|
|
|
|
* Default supported rates for 802.11 operation (in IEEE .5Mb units).
|
|
|
|
*/
|
|
|
|
#define B(r) ((r) | IEEE80211_RATE_BASIC)
|
|
|
|
static const struct ieee80211_rateset ieee80211_rateset_11a =
|
|
|
|
{ 8, { B(12), 18, B(24), 36, B(48), 72, 96, 108 } };
|
2006-12-27 18:46:18 +00:00
|
|
|
static const struct ieee80211_rateset ieee80211_rateset_half =
|
|
|
|
{ 8, { B(6), 9, B(12), 18, B(24), 36, 48, 54 } };
|
|
|
|
static const struct ieee80211_rateset ieee80211_rateset_quarter =
|
|
|
|
{ 8, { B(3), 4, B(6), 9, B(12), 18, 24, 27 } };
|
2006-11-26 22:48:03 +00:00
|
|
|
static const struct ieee80211_rateset ieee80211_rateset_11b =
|
|
|
|
{ 4, { B(2), B(4), B(11), B(22) } };
|
|
|
|
/* NB: OFDM rates are handled specially based on mode */
|
|
|
|
static const struct ieee80211_rateset ieee80211_rateset_11g =
|
|
|
|
{ 12, { B(2), B(4), B(11), B(22), 12, 18, 24, 36, 48, 72, 96, 108 } };
|
|
|
|
#undef B
|
|
|
|
|
2006-12-27 18:46:18 +00:00
|
|
|
/*
|
|
|
|
* Fill in 802.11 available channel set, mark
|
|
|
|
* all available channels as active, and pick
|
|
|
|
* a default channel if not already specified.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ieee80211_chan_init(struct ieee80211com *ic)
|
2003-06-23 16:55:01 +00:00
|
|
|
{
|
2006-12-27 18:46:18 +00:00
|
|
|
#define DEFAULTRATES(m, def) do { \
|
2009-02-19 05:21:54 +00:00
|
|
|
if (ic->ic_sup_rates[m].rs_nrates == 0) \
|
2006-12-28 01:31:26 +00:00
|
|
|
ic->ic_sup_rates[m] = def; \
|
2006-12-27 18:46:18 +00:00
|
|
|
} while (0)
|
2003-06-23 16:55:01 +00:00
|
|
|
struct ieee80211_channel *c;
|
|
|
|
int i;
|
|
|
|
|
2008-12-15 01:26:33 +00:00
|
|
|
KASSERT(0 < ic->ic_nchans && ic->ic_nchans <= IEEE80211_CHAN_MAX,
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
("invalid number of channels specified: %u", ic->ic_nchans));
|
2003-06-23 16:55:01 +00:00
|
|
|
memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail));
|
2008-04-20 20:35:46 +00:00
|
|
|
memset(ic->ic_modecaps, 0, sizeof(ic->ic_modecaps));
|
2007-03-11 22:37:32 +00:00
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_AUTO);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
for (i = 0; i < ic->ic_nchans; i++) {
|
2003-06-23 16:55:01 +00:00
|
|
|
c = &ic->ic_channels[i];
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
KASSERT(c->ic_flags != 0, ("channel with no flags"));
|
2009-01-27 22:48:46 +00:00
|
|
|
/*
|
|
|
|
* Help drivers that work only with frequencies by filling
|
|
|
|
* in IEEE channel #'s if not already calculated. Note this
|
|
|
|
* mimics similar work done in ieee80211_setregdomain when
|
|
|
|
* changing regulatory state.
|
|
|
|
*/
|
|
|
|
if (c->ic_ieee == 0)
|
|
|
|
c->ic_ieee = ieee80211_mhz2ieee(c->ic_freq,c->ic_flags);
|
|
|
|
if (IEEE80211_IS_CHAN_HT40(c) && c->ic_extieee == 0)
|
|
|
|
c->ic_extieee = ieee80211_mhz2ieee(c->ic_freq +
|
|
|
|
(IEEE80211_IS_CHAN_HT40U(c) ? 20 : -20),
|
|
|
|
c->ic_flags);
|
|
|
|
/* default max tx power to max regulatory */
|
|
|
|
if (c->ic_maxpower == 0)
|
|
|
|
c->ic_maxpower = 2*c->ic_maxregpower;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
setbit(ic->ic_chan_avail, c->ic_ieee);
|
|
|
|
/*
|
|
|
|
* Identify mode capabilities.
|
|
|
|
*/
|
|
|
|
if (IEEE80211_IS_CHAN_A(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_11A);
|
|
|
|
if (IEEE80211_IS_CHAN_B(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_11B);
|
|
|
|
if (IEEE80211_IS_CHAN_ANYG(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_11G);
|
|
|
|
if (IEEE80211_IS_CHAN_FHSS(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_FH);
|
|
|
|
if (IEEE80211_IS_CHAN_108A(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_TURBO_A);
|
|
|
|
if (IEEE80211_IS_CHAN_108G(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_TURBO_G);
|
|
|
|
if (IEEE80211_IS_CHAN_ST(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_STURBO_A);
|
2009-02-19 05:21:54 +00:00
|
|
|
if (IEEE80211_IS_CHAN_HALF(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_HALF);
|
|
|
|
if (IEEE80211_IS_CHAN_QUARTER(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_QUARTER);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
if (IEEE80211_IS_CHAN_HTA(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_11NA);
|
|
|
|
if (IEEE80211_IS_CHAN_HTG(c))
|
|
|
|
setbit(ic->ic_modecaps, IEEE80211_MODE_11NG);
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/* initialize candidate channels to all available */
|
|
|
|
memcpy(ic->ic_chan_active, ic->ic_chan_avail,
|
|
|
|
sizeof(ic->ic_chan_avail));
|
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
/* sort channel table to allow lookup optimizations */
|
|
|
|
ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
|
|
|
|
|
|
|
|
/* invalidate any previous state */
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
ic->ic_bsschan = IEEE80211_CHAN_ANYC;
|
2007-09-18 21:54:27 +00:00
|
|
|
ic->ic_prevchan = NULL;
|
2008-04-20 20:35:46 +00:00
|
|
|
ic->ic_csa_newchan = NULL;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/* arbitrarily pick the first channel */
|
|
|
|
ic->ic_curchan = &ic->ic_channels[0];
|
2009-03-29 21:17:08 +00:00
|
|
|
ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
|
2006-11-26 22:48:03 +00:00
|
|
|
|
|
|
|
/* fillin well-known rate sets if driver has not specified */
|
2006-12-27 18:46:18 +00:00
|
|
|
DEFAULTRATES(IEEE80211_MODE_11B, ieee80211_rateset_11b);
|
|
|
|
DEFAULTRATES(IEEE80211_MODE_11G, ieee80211_rateset_11g);
|
|
|
|
DEFAULTRATES(IEEE80211_MODE_11A, ieee80211_rateset_11a);
|
|
|
|
DEFAULTRATES(IEEE80211_MODE_TURBO_A, ieee80211_rateset_11a);
|
|
|
|
DEFAULTRATES(IEEE80211_MODE_TURBO_G, ieee80211_rateset_11g);
|
2009-01-29 23:09:12 +00:00
|
|
|
DEFAULTRATES(IEEE80211_MODE_STURBO_A, ieee80211_rateset_11a);
|
2009-02-19 05:21:54 +00:00
|
|
|
DEFAULTRATES(IEEE80211_MODE_HALF, ieee80211_rateset_half);
|
|
|
|
DEFAULTRATES(IEEE80211_MODE_QUARTER, ieee80211_rateset_quarter);
|
2009-02-19 04:33:36 +00:00
|
|
|
DEFAULTRATES(IEEE80211_MODE_11NA, ieee80211_rateset_11a);
|
|
|
|
DEFAULTRATES(IEEE80211_MODE_11NG, ieee80211_rateset_11g);
|
2006-12-27 18:46:18 +00:00
|
|
|
|
2011-03-13 11:40:18 +00:00
|
|
|
/*
|
|
|
|
* Setup required information to fill the mcsset field, if driver did
|
|
|
|
* not. Assume a 2T2R setup for historic reasons.
|
|
|
|
*/
|
|
|
|
if (ic->ic_rxstream == 0)
|
|
|
|
ic->ic_rxstream = 2;
|
|
|
|
if (ic->ic_txstream == 0)
|
|
|
|
ic->ic_txstream = 2;
|
|
|
|
|
2006-12-27 18:46:18 +00:00
|
|
|
/*
|
|
|
|
* Set auto mode to reset active channel state and any desired channel.
|
|
|
|
*/
|
|
|
|
(void) ieee80211_setmode(ic, IEEE80211_MODE_AUTO);
|
|
|
|
#undef DEFAULTRATES
|
|
|
|
}
|
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
static void
|
|
|
|
null_update_mcast(struct ifnet *ifp)
|
|
|
|
{
|
|
|
|
if_printf(ifp, "need multicast update callback\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
null_update_promisc(struct ifnet *ifp)
|
|
|
|
{
|
|
|
|
if_printf(ifp, "need promiscuous mode update callback\n");
|
|
|
|
}
|
|
|
|
|
2009-07-24 15:27:02 +00:00
|
|
|
static int
|
|
|
|
null_transmit(struct ifnet *ifp, struct mbuf *m)
|
|
|
|
{
|
|
|
|
m_freem(m);
|
|
|
|
ifp->if_oerrors++;
|
|
|
|
return EACCES; /* XXX EIO/EPERM? */
|
|
|
|
}
|
|
|
|
|
2013-08-07 22:01:43 +00:00
|
|
|
#if __FreeBSD_version >= 1000031
|
2008-04-25 19:45:42 +00:00
|
|
|
static int
|
|
|
|
null_output(struct ifnet *ifp, struct mbuf *m,
|
2013-04-26 12:50:32 +00:00
|
|
|
const struct sockaddr *dst, struct route *ro)
|
2013-08-07 22:01:43 +00:00
|
|
|
#else
|
|
|
|
static int
|
|
|
|
null_output(struct ifnet *ifp, struct mbuf *m,
|
|
|
|
struct sockaddr *dst, struct route *ro)
|
|
|
|
#endif
|
2008-04-25 19:45:42 +00:00
|
|
|
{
|
|
|
|
if_printf(ifp, "discard raw packet\n");
|
2009-07-24 15:27:02 +00:00
|
|
|
return null_transmit(ifp, m);
|
2008-04-25 19:45:42 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
null_input(struct ifnet *ifp, struct mbuf *m)
|
|
|
|
{
|
|
|
|
if_printf(ifp, "if_input should not be called\n");
|
|
|
|
m_freem(m);
|
|
|
|
}
|
|
|
|
|
2012-03-25 03:11:57 +00:00
|
|
|
static void
|
|
|
|
null_update_chw(struct ieee80211com *ic)
|
|
|
|
{
|
|
|
|
|
|
|
|
if_printf(ic->ic_ifp, "%s: need callback\n", __func__);
|
|
|
|
}
|
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
/*
|
|
|
|
* Attach/setup the common net80211 state. Called by
|
|
|
|
* the driver on attach to prior to creating any vap's.
|
|
|
|
*/
|
2006-12-27 18:46:18 +00:00
|
|
|
void
|
2009-03-29 17:59:14 +00:00
|
|
|
ieee80211_ifattach(struct ieee80211com *ic,
|
|
|
|
const uint8_t macaddr[IEEE80211_ADDR_LEN])
|
2006-12-27 18:46:18 +00:00
|
|
|
{
|
|
|
|
struct ifnet *ifp = ic->ic_ifp;
|
2008-04-20 20:35:46 +00:00
|
|
|
struct sockaddr_dl *sdl;
|
|
|
|
struct ifaddr *ifa;
|
2006-12-27 18:46:18 +00:00
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
KASSERT(ifp->if_type == IFT_IEEE80211, ("if_type %d", ifp->if_type));
|
2006-12-27 18:46:18 +00:00
|
|
|
|
2008-05-28 23:10:53 +00:00
|
|
|
IEEE80211_LOCK_INIT(ic, ifp->if_xname);
|
Bring over my initial work from the net80211 TX locking branch.
This patchset implements a new TX lock, covering both the per-VAP (and
thus per-node) TX locking and the serialisation through to the underlying
physical device.
This implements the hard requirement that frames to the underlying physical
device are scheduled to the underlying device in the same order that they
are processed at the VAP layer. This includes adding extra encapsulation
state (such as sequence numbers and CCMP IV numbers.) Any order mismatch
here will result in dropped packets at the receiver.
There are multiple transmit contexts from the upper protocol layers as well
as the "raw" interface via the management and BPF transmit paths.
All of these need to be correctly serialised or bad behaviour will result
under load.
The specifics:
* add a new TX IC lock - it will eventually just be used for serialisation
to the underlying physical device but for now it's used for both the
VAP encapsulation/serialisation and the physical device dispatch.
This lock is specifically non-recursive.
* Methodize the parent transmit, vap transmit and ic_raw_xmit function
pointers; use lock assertions in the parent/vap transmit routines.
* Add a lock assertion in ieee80211_encap() - the TX lock must be held
here to guarantee sensible behaviour.
* Refactor out the packet sending code from ieee80211_start() - now
ieee80211_start() is just a loop over the ifnet queue and it dispatches
each VAP packet send through ieee80211_start_pkt().
Yes, I will likely rename ieee80211_start_pkt() to something that
better reflects its status as a VAP packet transmit path. More on
that later.
* Add locking around the management and BAR TX sending - to ensure that
encapsulation and TX are done hand-in-hand.
* Add locking in the mesh code - again, to ensure that encapsulation
and mesh transmit are done hand-in-hand.
* Add locking around the power save queue and ageq handling, when
dispatching to the parent interface.
* Add locking around the WDS handoff.
* Add a note in the mesh dispatch code that the TX path needs to be
re-thought-out - right now it's doing a direct parent device transmit
rather than going via the vap layer. It may "work", but it's likely
incorrect (as it bypasses any possible per-node power save and
aggregation handling.)
Why not a per-VAP or per-node lock?
Because in order to ensure per-VAP ordering, we'd have to hold the
VAP lock across parent->if_transmit(). There are a few problems
with this:
* There's some state being setup during each driver transmit - specifically,
the encryption encap / CCMP IV setup. That should eventually be dragged
back into the encapsulation phase but for now it lives in the driver TX path.
This should be locked.
* Two drivers (ath, iwn) re-use the node->ni_txseqs array in order to
allocate sequence numbers when doing transmit aggregation. This should
also be locked.
* Drivers may have multiple frames queued already - so when one calls
if_transmit(), it may end up dispatching multiple frames for different
VAPs/nodes, each needing a different lock when handling that particular
end destination.
So to be "correct" locking-wise, we'd end up needing to grab a VAP or
node lock inside the driver TX path when setting up crypto / AMPDU sequence
numbers, and we may already _have_ a TX lock held - mostly for the same
destination vap/node, but sometimes it'll be for others. That could lead
to LORs and thus deadlocks.
So for now, I'm sticking with an IC TX lock. It has the advantage of
papering over the above and it also has the added advantage that I can
assert that it's being held when doing a parent device transmit.
I'll look at splitting the locks out a bit more later on.
General outstanding net80211 TX path issues / TODO:
* Look into separating out the VAP serialisation and the IC handoff.
It's going to be tricky as parent->if_transmit() doesn't give me the
opportunity to split queuing from driver dispatch. See above.
* Work with monthadar to fix up the mesh transmit path so it doesn't go via
the parent interface when retransmitting frames.
* Push the encryption handling back into the driver, if it's at all
architectually sane to do so. I know it's possible - it's what mac80211
in Linux does.
* Make ieee80211_raw_xmit() queue a frame into VAP or parent queue rather
than doing a short-cut direct into the driver. There are QoS issues
here - you do want your management frames to be encapsulated and pushed
onto the stack sooner than the (large, bursty) amount of data frames
that are queued. But there has to be a saner way to do this.
* Fragments are still broken - drivers need to be upgraded to an if_transmit()
implementation and then fragmentation handling needs to be properly fixed.
Tested:
* STA - AR5416, AR9280, Intel 5300 abgn wifi
* Hostap - AR5416, AR9160, AR9280
* Mesh - some testing by monthadar@, more to come.
2013-03-08 20:23:55 +00:00
|
|
|
IEEE80211_TX_LOCK_INIT(ic, ifp->if_xname);
|
2008-04-20 20:35:46 +00:00
|
|
|
TAILQ_INIT(&ic->ic_vaps);
|
2009-05-02 15:14:18 +00:00
|
|
|
|
|
|
|
/* Create a taskqueue for all state changes */
|
|
|
|
ic->ic_tq = taskqueue_create("ic_taskq", M_WAITOK | M_ZERO,
|
|
|
|
taskqueue_thread_enqueue, &ic->ic_tq);
|
2012-01-22 05:30:29 +00:00
|
|
|
taskqueue_start_threads(&ic->ic_tq, 1, PI_NET, "%s net80211 taskq",
|
2009-05-02 15:14:18 +00:00
|
|
|
ifp->if_xname);
|
2006-12-27 18:46:18 +00:00
|
|
|
/*
|
|
|
|
* Fill in 802.11 available channel set, mark all
|
|
|
|
* available channels as active, and pick a default
|
|
|
|
* channel if not already specified.
|
|
|
|
*/
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_media_init(ic);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
ic->ic_update_mcast = null_update_mcast;
|
|
|
|
ic->ic_update_promisc = null_update_promisc;
|
2012-03-25 03:11:57 +00:00
|
|
|
ic->ic_update_chw = null_update_chw;
|
2003-06-23 16:55:01 +00:00
|
|
|
|
2009-07-05 18:17:37 +00:00
|
|
|
ic->ic_hash_key = arc4random();
|
2006-02-14 17:48:56 +00:00
|
|
|
ic->ic_bintval = IEEE80211_BINTVAL_DEFAULT;
|
|
|
|
ic->ic_lintval = ic->ic_bintval;
|
2004-12-08 17:26:47 +00:00
|
|
|
ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX;
|
2003-06-23 16:55:01 +00:00
|
|
|
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
ieee80211_crypto_attach(ic);
|
2004-12-08 17:26:47 +00:00
|
|
|
ieee80211_node_attach(ic);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
ieee80211_power_attach(ic);
|
2004-12-08 17:26:47 +00:00
|
|
|
ieee80211_proto_attach(ic);
|
2009-03-24 20:39:08 +00:00
|
|
|
#ifdef IEEE80211_SUPPORT_SUPERG
|
|
|
|
ieee80211_superg_attach(ic);
|
|
|
|
#endif
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
ieee80211_ht_attach(ic);
|
|
|
|
ieee80211_scan_attach(ic);
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_regdomain_attach(ic);
|
2009-06-09 17:11:41 +00:00
|
|
|
ieee80211_dfs_attach(ic);
|
2008-04-20 20:35:46 +00:00
|
|
|
|
|
|
|
ieee80211_sysctl_attach(ic);
|
|
|
|
|
|
|
|
ifp->if_addrlen = IEEE80211_ADDR_LEN;
|
|
|
|
ifp->if_hdrlen = 0;
|
2012-10-26 16:56:55 +00:00
|
|
|
|
|
|
|
CURVNET_SET(vnet0);
|
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
if_attach(ifp);
|
2012-10-26 16:56:55 +00:00
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
ifp->if_mtu = IEEE80211_MTU_MAX;
|
|
|
|
ifp->if_broadcastaddr = ieee80211broadcastaddr;
|
2008-04-25 19:45:42 +00:00
|
|
|
ifp->if_output = null_output;
|
|
|
|
ifp->if_input = null_input; /* just in case */
|
|
|
|
ifp->if_resolvemulti = NULL; /* NB: callers check */
|
2008-04-20 20:35:46 +00:00
|
|
|
|
|
|
|
ifa = ifaddr_byindex(ifp->if_index);
|
|
|
|
KASSERT(ifa != NULL, ("%s: no lladdr!\n", __func__));
|
|
|
|
sdl = (struct sockaddr_dl *)ifa->ifa_addr;
|
|
|
|
sdl->sdl_type = IFT_ETHER; /* XXX IFT_IEEE80211? */
|
|
|
|
sdl->sdl_alen = IEEE80211_ADDR_LEN;
|
2009-03-29 17:59:14 +00:00
|
|
|
IEEE80211_ADDR_COPY(LLADDR(sdl), macaddr);
|
2009-06-23 20:19:09 +00:00
|
|
|
ifa_free(ifa);
|
2012-10-26 16:56:55 +00:00
|
|
|
|
|
|
|
CURVNET_RESTORE();
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
/*
|
|
|
|
* Detach net80211 state on device detach. Tear down
|
|
|
|
* all vap's and reclaim all common state prior to the
|
|
|
|
* device state going away. Note we may call back into
|
|
|
|
* driver; it must be prepared for this.
|
|
|
|
*/
|
2003-06-23 16:55:01 +00:00
|
|
|
void
|
2004-12-08 17:26:47 +00:00
|
|
|
ieee80211_ifdetach(struct ieee80211com *ic)
|
2003-06-23 16:55:01 +00:00
|
|
|
{
|
2004-12-08 17:26:47 +00:00
|
|
|
struct ifnet *ifp = ic->ic_ifp;
|
2008-04-20 20:35:46 +00:00
|
|
|
struct ieee80211vap *vap;
|
2003-06-23 16:55:01 +00:00
|
|
|
|
2012-10-26 16:56:55 +00:00
|
|
|
/*
|
|
|
|
* This detaches the main interface, but not the vaps.
|
|
|
|
* Each VAP may be in a separate VIMAGE.
|
|
|
|
*/
|
|
|
|
CURVNET_SET(ifp->if_vnet);
|
2009-06-02 18:55:27 +00:00
|
|
|
if_detach(ifp);
|
2012-10-26 16:56:55 +00:00
|
|
|
CURVNET_RESTORE();
|
2009-06-02 18:55:27 +00:00
|
|
|
|
2012-10-26 16:56:55 +00:00
|
|
|
/*
|
|
|
|
* The VAP is responsible for setting and clearing
|
|
|
|
* the VIMAGE context.
|
|
|
|
*/
|
2008-04-20 20:35:46 +00:00
|
|
|
while ((vap = TAILQ_FIRST(&ic->ic_vaps)) != NULL)
|
|
|
|
ieee80211_vap_destroy(vap);
|
2009-02-12 18:57:18 +00:00
|
|
|
ieee80211_waitfor_parent(ic);
|
2004-12-08 17:26:47 +00:00
|
|
|
|
|
|
|
ieee80211_sysctl_detach(ic);
|
2009-06-09 17:11:41 +00:00
|
|
|
ieee80211_dfs_detach(ic);
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_regdomain_detach(ic);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
ieee80211_scan_detach(ic);
|
2009-03-24 20:39:08 +00:00
|
|
|
#ifdef IEEE80211_SUPPORT_SUPERG
|
|
|
|
ieee80211_superg_detach(ic);
|
|
|
|
#endif
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
ieee80211_ht_detach(ic);
|
2007-01-15 01:12:28 +00:00
|
|
|
/* NB: must be called before ieee80211_node_detach */
|
2004-12-08 17:26:47 +00:00
|
|
|
ieee80211_proto_detach(ic);
|
|
|
|
ieee80211_crypto_detach(ic);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
ieee80211_power_detach(ic);
|
2004-12-08 17:26:47 +00:00
|
|
|
ieee80211_node_detach(ic);
|
|
|
|
|
2012-10-26 16:56:55 +00:00
|
|
|
/* XXX VNET needed? */
|
2009-06-02 18:55:27 +00:00
|
|
|
ifmedia_removeall(&ic->ic_media);
|
2012-10-26 16:56:55 +00:00
|
|
|
|
2009-05-02 15:14:18 +00:00
|
|
|
taskqueue_free(ic->ic_tq);
|
Bring over my initial work from the net80211 TX locking branch.
This patchset implements a new TX lock, covering both the per-VAP (and
thus per-node) TX locking and the serialisation through to the underlying
physical device.
This implements the hard requirement that frames to the underlying physical
device are scheduled to the underlying device in the same order that they
are processed at the VAP layer. This includes adding extra encapsulation
state (such as sequence numbers and CCMP IV numbers.) Any order mismatch
here will result in dropped packets at the receiver.
There are multiple transmit contexts from the upper protocol layers as well
as the "raw" interface via the management and BPF transmit paths.
All of these need to be correctly serialised or bad behaviour will result
under load.
The specifics:
* add a new TX IC lock - it will eventually just be used for serialisation
to the underlying physical device but for now it's used for both the
VAP encapsulation/serialisation and the physical device dispatch.
This lock is specifically non-recursive.
* Methodize the parent transmit, vap transmit and ic_raw_xmit function
pointers; use lock assertions in the parent/vap transmit routines.
* Add a lock assertion in ieee80211_encap() - the TX lock must be held
here to guarantee sensible behaviour.
* Refactor out the packet sending code from ieee80211_start() - now
ieee80211_start() is just a loop over the ifnet queue and it dispatches
each VAP packet send through ieee80211_start_pkt().
Yes, I will likely rename ieee80211_start_pkt() to something that
better reflects its status as a VAP packet transmit path. More on
that later.
* Add locking around the management and BAR TX sending - to ensure that
encapsulation and TX are done hand-in-hand.
* Add locking in the mesh code - again, to ensure that encapsulation
and mesh transmit are done hand-in-hand.
* Add locking around the power save queue and ageq handling, when
dispatching to the parent interface.
* Add locking around the WDS handoff.
* Add a note in the mesh dispatch code that the TX path needs to be
re-thought-out - right now it's doing a direct parent device transmit
rather than going via the vap layer. It may "work", but it's likely
incorrect (as it bypasses any possible per-node power save and
aggregation handling.)
Why not a per-VAP or per-node lock?
Because in order to ensure per-VAP ordering, we'd have to hold the
VAP lock across parent->if_transmit(). There are a few problems
with this:
* There's some state being setup during each driver transmit - specifically,
the encryption encap / CCMP IV setup. That should eventually be dragged
back into the encapsulation phase but for now it lives in the driver TX path.
This should be locked.
* Two drivers (ath, iwn) re-use the node->ni_txseqs array in order to
allocate sequence numbers when doing transmit aggregation. This should
also be locked.
* Drivers may have multiple frames queued already - so when one calls
if_transmit(), it may end up dispatching multiple frames for different
VAPs/nodes, each needing a different lock when handling that particular
end destination.
So to be "correct" locking-wise, we'd end up needing to grab a VAP or
node lock inside the driver TX path when setting up crypto / AMPDU sequence
numbers, and we may already _have_ a TX lock held - mostly for the same
destination vap/node, but sometimes it'll be for others. That could lead
to LORs and thus deadlocks.
So for now, I'm sticking with an IC TX lock. It has the advantage of
papering over the above and it also has the added advantage that I can
assert that it's being held when doing a parent device transmit.
I'll look at splitting the locks out a bit more later on.
General outstanding net80211 TX path issues / TODO:
* Look into separating out the VAP serialisation and the IC handoff.
It's going to be tricky as parent->if_transmit() doesn't give me the
opportunity to split queuing from driver dispatch. See above.
* Work with monthadar to fix up the mesh transmit path so it doesn't go via
the parent interface when retransmitting frames.
* Push the encryption handling back into the driver, if it's at all
architectually sane to do so. I know it's possible - it's what mac80211
in Linux does.
* Make ieee80211_raw_xmit() queue a frame into VAP or parent queue rather
than doing a short-cut direct into the driver. There are QoS issues
here - you do want your management frames to be encapsulated and pushed
onto the stack sooner than the (large, bursty) amount of data frames
that are queued. But there has to be a saner way to do this.
* Fragments are still broken - drivers need to be upgraded to an if_transmit()
implementation and then fragmentation handling needs to be properly fixed.
Tested:
* STA - AR5416, AR9280, Intel 5300 abgn wifi
* Hostap - AR5416, AR9160, AR9280
* Mesh - some testing by monthadar@, more to come.
2013-03-08 20:23:55 +00:00
|
|
|
IEEE80211_TX_LOCK_DESTROY(ic);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
IEEE80211_LOCK_DESTROY(ic);
|
2008-04-20 20:35:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Default reset method for use with the ioctl support. This
|
|
|
|
* method is invoked after any state change in the 802.11
|
|
|
|
* layer that should be propagated to the hardware but not
|
|
|
|
* require re-initialization of the 802.11 state machine (e.g
|
|
|
|
* rescanning for an ap). We always return ENETRESET which
|
|
|
|
* should cause the driver to re-initialize the device. Drivers
|
|
|
|
* can override this method to implement more optimized support.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
default_reset(struct ieee80211vap *vap, u_long cmd)
|
|
|
|
{
|
|
|
|
return ENETRESET;
|
|
|
|
}
|
2004-12-08 17:26:47 +00:00
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
/*
|
|
|
|
* Prepare a vap for use. Drivers use this call to
|
|
|
|
* setup net80211 state in new vap's prior attaching
|
|
|
|
* them with ieee80211_vap_attach (below).
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
ieee80211_vap_setup(struct ieee80211com *ic, struct ieee80211vap *vap,
|
2011-12-17 10:23:17 +00:00
|
|
|
const char name[IFNAMSIZ], int unit, enum ieee80211_opmode opmode,
|
|
|
|
int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
|
|
|
|
const uint8_t macaddr[IEEE80211_ADDR_LEN])
|
2008-04-20 20:35:46 +00:00
|
|
|
{
|
|
|
|
struct ifnet *ifp;
|
|
|
|
|
|
|
|
ifp = if_alloc(IFT_ETHER);
|
|
|
|
if (ifp == NULL) {
|
|
|
|
if_printf(ic->ic_ifp, "%s: unable to allocate ifnet\n",
|
|
|
|
__func__);
|
|
|
|
return ENOMEM;
|
|
|
|
}
|
|
|
|
if_initname(ifp, name, unit);
|
|
|
|
ifp->if_softc = vap; /* back pointer */
|
|
|
|
ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST;
|
2013-08-08 05:09:35 +00:00
|
|
|
ifp->if_transmit = ieee80211_vap_transmit;
|
|
|
|
ifp->if_qflush = ieee80211_vap_qflush;
|
2008-04-20 20:35:46 +00:00
|
|
|
ifp->if_ioctl = ieee80211_ioctl;
|
|
|
|
ifp->if_init = ieee80211_init;
|
|
|
|
|
|
|
|
vap->iv_ifp = ifp;
|
|
|
|
vap->iv_ic = ic;
|
|
|
|
vap->iv_flags = ic->ic_flags; /* propagate common flags */
|
|
|
|
vap->iv_flags_ext = ic->ic_flags_ext;
|
|
|
|
vap->iv_flags_ven = ic->ic_flags_ven;
|
|
|
|
vap->iv_caps = ic->ic_caps &~ IEEE80211_C_OPMODE;
|
|
|
|
vap->iv_htcaps = ic->ic_htcaps;
|
2010-03-23 12:03:09 +00:00
|
|
|
vap->iv_htextcaps = ic->ic_htextcaps;
|
2008-04-20 20:35:46 +00:00
|
|
|
vap->iv_opmode = opmode;
|
2008-05-12 00:15:30 +00:00
|
|
|
vap->iv_caps |= ieee80211_opcap[opmode];
|
2008-04-20 20:35:46 +00:00
|
|
|
switch (opmode) {
|
|
|
|
case IEEE80211_M_WDS:
|
|
|
|
/*
|
|
|
|
* WDS links must specify the bssid of the far end.
|
|
|
|
* For legacy operation this is a static relationship.
|
|
|
|
* For non-legacy operation the station must associate
|
|
|
|
* and be authorized to pass traffic. Plumbing the
|
|
|
|
* vap to the proper node happens when the vap
|
|
|
|
* transitions to RUN state.
|
|
|
|
*/
|
|
|
|
IEEE80211_ADDR_COPY(vap->iv_des_bssid, bssid);
|
|
|
|
vap->iv_flags |= IEEE80211_F_DESBSSID;
|
|
|
|
if (flags & IEEE80211_CLONE_WDSLEGACY)
|
|
|
|
vap->iv_flags_ext |= IEEE80211_FEXT_WDSLEGACY;
|
|
|
|
break;
|
2009-01-08 17:12:47 +00:00
|
|
|
#ifdef IEEE80211_SUPPORT_TDMA
|
|
|
|
case IEEE80211_M_AHDEMO:
|
|
|
|
if (flags & IEEE80211_CLONE_TDMA) {
|
|
|
|
/* NB: checked before clone operation allowed */
|
|
|
|
KASSERT(ic->ic_caps & IEEE80211_C_TDMA,
|
|
|
|
("not TDMA capable, ic_caps 0x%x", ic->ic_caps));
|
|
|
|
/*
|
|
|
|
* Propagate TDMA capability to mark vap; this
|
|
|
|
* cannot be removed and is used to distinguish
|
|
|
|
* regular ahdemo operation from ahdemo+tdma.
|
|
|
|
*/
|
|
|
|
vap->iv_caps |= IEEE80211_C_TDMA;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
#endif
|
2011-12-17 10:23:17 +00:00
|
|
|
default:
|
|
|
|
break;
|
2008-04-20 20:35:46 +00:00
|
|
|
}
|
2008-10-25 23:43:08 +00:00
|
|
|
/* auto-enable s/w beacon miss support */
|
|
|
|
if (flags & IEEE80211_CLONE_NOBEACONS)
|
|
|
|
vap->iv_flags_ext |= IEEE80211_FEXT_SWBMISS;
|
2010-01-19 05:00:57 +00:00
|
|
|
/* auto-generated or user supplied MAC address */
|
|
|
|
if (flags & (IEEE80211_CLONE_BSSID|IEEE80211_CLONE_MACADDR))
|
|
|
|
vap->iv_flags_ext |= IEEE80211_FEXT_UNIQMAC;
|
2008-04-20 20:35:46 +00:00
|
|
|
/*
|
|
|
|
* Enable various functionality by default if we're
|
|
|
|
* capable; the driver can override us if it knows better.
|
|
|
|
*/
|
|
|
|
if (vap->iv_caps & IEEE80211_C_WME)
|
|
|
|
vap->iv_flags |= IEEE80211_F_WME;
|
|
|
|
if (vap->iv_caps & IEEE80211_C_BURST)
|
|
|
|
vap->iv_flags |= IEEE80211_F_BURST;
|
|
|
|
/* NB: bg scanning only makes sense for station mode right now */
|
|
|
|
if (vap->iv_opmode == IEEE80211_M_STA &&
|
|
|
|
(vap->iv_caps & IEEE80211_C_BGSCAN))
|
|
|
|
vap->iv_flags |= IEEE80211_F_BGSCAN;
|
2008-05-12 00:15:30 +00:00
|
|
|
vap->iv_flags |= IEEE80211_F_DOTH; /* XXX no cap, just ena */
|
2008-05-11 23:32:07 +00:00
|
|
|
/* NB: DFS support only makes sense for ap mode right now */
|
|
|
|
if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
|
|
|
|
(vap->iv_caps & IEEE80211_C_DFS))
|
2008-04-20 20:35:46 +00:00
|
|
|
vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
|
|
|
|
|
|
|
|
vap->iv_des_chan = IEEE80211_CHAN_ANYC; /* any channel is ok */
|
|
|
|
vap->iv_bmissthreshold = IEEE80211_HWBMISS_DEFAULT;
|
|
|
|
vap->iv_dtim_period = IEEE80211_DTIM_DEFAULT;
|
|
|
|
/*
|
|
|
|
* Install a default reset method for the ioctl support;
|
|
|
|
* the driver can override this.
|
|
|
|
*/
|
|
|
|
vap->iv_reset = default_reset;
|
|
|
|
|
|
|
|
IEEE80211_ADDR_COPY(vap->iv_myaddr, macaddr);
|
|
|
|
|
|
|
|
ieee80211_sysctl_vattach(vap);
|
|
|
|
ieee80211_crypto_vattach(vap);
|
|
|
|
ieee80211_node_vattach(vap);
|
|
|
|
ieee80211_power_vattach(vap);
|
|
|
|
ieee80211_proto_vattach(vap);
|
2009-03-24 20:39:08 +00:00
|
|
|
#ifdef IEEE80211_SUPPORT_SUPERG
|
|
|
|
ieee80211_superg_vattach(vap);
|
|
|
|
#endif
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_ht_vattach(vap);
|
|
|
|
ieee80211_scan_vattach(vap);
|
|
|
|
ieee80211_regdomain_vattach(vap);
|
2009-05-20 20:00:40 +00:00
|
|
|
ieee80211_radiotap_vattach(vap);
|
2010-11-06 18:17:20 +00:00
|
|
|
ieee80211_ratectl_set(vap, IEEE80211_RATECTL_NONE);
|
2010-04-07 15:29:13 +00:00
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Activate a vap. State should have been prepared with a
|
|
|
|
* call to ieee80211_vap_setup and by the driver. On return
|
|
|
|
* from this call the vap is ready for use.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
ieee80211_vap_attach(struct ieee80211vap *vap,
|
|
|
|
ifm_change_cb_t media_change, ifm_stat_cb_t media_stat)
|
|
|
|
{
|
|
|
|
struct ifnet *ifp = vap->iv_ifp;
|
|
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
|
|
struct ifmediareq imr;
|
|
|
|
int maxrate;
|
|
|
|
|
|
|
|
IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE,
|
|
|
|
"%s: %s parent %s flags 0x%x flags_ext 0x%x\n",
|
|
|
|
__func__, ieee80211_opmode_name[vap->iv_opmode],
|
|
|
|
ic->ic_ifp->if_xname, vap->iv_flags, vap->iv_flags_ext);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Do late attach work that cannot happen until after
|
|
|
|
* the driver has had a chance to override defaults.
|
|
|
|
*/
|
|
|
|
ieee80211_node_latevattach(vap);
|
|
|
|
ieee80211_power_latevattach(vap);
|
|
|
|
|
|
|
|
maxrate = ieee80211_media_setup(ic, &vap->iv_media, vap->iv_caps,
|
|
|
|
vap->iv_opmode == IEEE80211_M_STA, media_change, media_stat);
|
|
|
|
ieee80211_media_status(ifp, &imr);
|
|
|
|
/* NB: strip explicit mode; we're actually in autoselect */
|
2009-02-03 22:32:26 +00:00
|
|
|
ifmedia_set(&vap->iv_media,
|
|
|
|
imr.ifm_active &~ (IFM_MMASK | IFM_IEEE80211_TURBO));
|
2008-04-20 20:35:46 +00:00
|
|
|
if (maxrate)
|
|
|
|
ifp->if_baudrate = IF_Mbps(maxrate);
|
|
|
|
|
|
|
|
ether_ifattach(ifp, vap->iv_myaddr);
|
2014-08-10 08:35:42 +00:00
|
|
|
/* hook output method setup by ether_ifattach */
|
|
|
|
vap->iv_output = ifp->if_output;
|
|
|
|
ifp->if_output = ieee80211_output;
|
2008-04-20 20:35:46 +00:00
|
|
|
/* NB: if_mtu set by ether_ifattach to ETHERMTU */
|
|
|
|
|
|
|
|
IEEE80211_LOCK(ic);
|
|
|
|
TAILQ_INSERT_TAIL(&ic->ic_vaps, vap, iv_next);
|
|
|
|
ieee80211_syncflag_locked(ic, IEEE80211_F_WME);
|
2009-03-24 20:39:08 +00:00
|
|
|
#ifdef IEEE80211_SUPPORT_SUPERG
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_syncflag_locked(ic, IEEE80211_F_TURBOP);
|
2009-03-24 20:39:08 +00:00
|
|
|
#endif
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_syncflag_locked(ic, IEEE80211_F_PCF);
|
|
|
|
ieee80211_syncflag_locked(ic, IEEE80211_F_BURST);
|
2009-06-07 22:00:22 +00:00
|
|
|
ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_HT);
|
|
|
|
ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_USEHT40);
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_syncifflag_locked(ic, IFF_PROMISC);
|
|
|
|
ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
|
|
|
|
IEEE80211_UNLOCK(ic);
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Tear down vap state and reclaim the ifnet.
|
|
|
|
* The driver is assumed to have prepared for
|
|
|
|
* this; e.g. by turning off interrupts for the
|
|
|
|
* underlying device.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
ieee80211_vap_detach(struct ieee80211vap *vap)
|
|
|
|
{
|
|
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
|
|
struct ifnet *ifp = vap->iv_ifp;
|
|
|
|
|
2012-10-26 16:56:55 +00:00
|
|
|
CURVNET_SET(ifp->if_vnet);
|
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s parent %s\n",
|
|
|
|
__func__, ieee80211_opmode_name[vap->iv_opmode],
|
|
|
|
ic->ic_ifp->if_xname);
|
|
|
|
|
2009-06-02 16:57:27 +00:00
|
|
|
/* NB: bpfdetach is called by ether_ifdetach and claims all taps */
|
|
|
|
ether_ifdetach(ifp);
|
|
|
|
|
|
|
|
ieee80211_stop(vap);
|
2009-05-02 15:14:18 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Flush any deferred vap tasks.
|
|
|
|
*/
|
|
|
|
ieee80211_draintask(ic, &vap->iv_nstate_task);
|
|
|
|
ieee80211_draintask(ic, &vap->iv_swbmiss_task);
|
2008-04-20 20:35:46 +00:00
|
|
|
|
2009-08-12 21:19:19 +00:00
|
|
|
/* XXX band-aid until ifnet handles this for us */
|
|
|
|
taskqueue_drain(taskqueue_swi, &ifp->if_linktask);
|
|
|
|
|
2009-05-02 15:14:18 +00:00
|
|
|
IEEE80211_LOCK(ic);
|
|
|
|
KASSERT(vap->iv_state == IEEE80211_S_INIT , ("vap still running"));
|
2008-04-20 20:35:46 +00:00
|
|
|
TAILQ_REMOVE(&ic->ic_vaps, vap, iv_next);
|
|
|
|
ieee80211_syncflag_locked(ic, IEEE80211_F_WME);
|
2009-03-24 20:39:08 +00:00
|
|
|
#ifdef IEEE80211_SUPPORT_SUPERG
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_syncflag_locked(ic, IEEE80211_F_TURBOP);
|
2009-03-24 20:39:08 +00:00
|
|
|
#endif
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_syncflag_locked(ic, IEEE80211_F_PCF);
|
|
|
|
ieee80211_syncflag_locked(ic, IEEE80211_F_BURST);
|
2009-06-07 22:00:22 +00:00
|
|
|
ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_HT);
|
|
|
|
ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_USEHT40);
|
2009-05-20 20:00:40 +00:00
|
|
|
/* NB: this handles the bpfdetach done below */
|
|
|
|
ieee80211_syncflag_ext_locked(ic, IEEE80211_FEXT_BPF);
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_syncifflag_locked(ic, IFF_PROMISC);
|
|
|
|
ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
|
|
|
|
IEEE80211_UNLOCK(ic);
|
|
|
|
|
|
|
|
ifmedia_removeall(&vap->iv_media);
|
|
|
|
|
2009-05-20 20:00:40 +00:00
|
|
|
ieee80211_radiotap_vdetach(vap);
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_regdomain_vdetach(vap);
|
|
|
|
ieee80211_scan_vdetach(vap);
|
2009-03-24 20:39:08 +00:00
|
|
|
#ifdef IEEE80211_SUPPORT_SUPERG
|
|
|
|
ieee80211_superg_vdetach(vap);
|
|
|
|
#endif
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_ht_vdetach(vap);
|
|
|
|
/* NB: must be before ieee80211_node_vdetach */
|
|
|
|
ieee80211_proto_vdetach(vap);
|
|
|
|
ieee80211_crypto_vdetach(vap);
|
|
|
|
ieee80211_power_vdetach(vap);
|
|
|
|
ieee80211_node_vdetach(vap);
|
|
|
|
ieee80211_sysctl_vdetach(vap);
|
2008-09-02 04:49:35 +00:00
|
|
|
|
|
|
|
if_free(ifp);
|
2012-10-26 16:56:55 +00:00
|
|
|
|
|
|
|
CURVNET_RESTORE();
|
2008-04-20 20:35:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Synchronize flag bit state in the parent ifnet structure
|
|
|
|
* according to the state of all vap ifnet's. This is used,
|
|
|
|
* for example, to handle IFF_PROMISC and IFF_ALLMULTI.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
ieee80211_syncifflag_locked(struct ieee80211com *ic, int flag)
|
|
|
|
{
|
|
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
struct ieee80211vap *vap;
|
|
|
|
int bit, oflags;
|
|
|
|
|
|
|
|
IEEE80211_LOCK_ASSERT(ic);
|
|
|
|
|
|
|
|
bit = 0;
|
|
|
|
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
|
|
|
|
if (vap->iv_ifp->if_flags & flag) {
|
|
|
|
/*
|
|
|
|
* XXX the bridge sets PROMISC but we don't want to
|
|
|
|
* enable it on the device, discard here so all the
|
|
|
|
* drivers don't need to special-case it
|
|
|
|
*/
|
|
|
|
if (flag == IFF_PROMISC &&
|
2009-07-24 15:28:29 +00:00
|
|
|
!(vap->iv_opmode == IEEE80211_M_MONITOR ||
|
2009-07-31 19:12:19 +00:00
|
|
|
(vap->iv_opmode == IEEE80211_M_AHDEMO &&
|
|
|
|
(vap->iv_caps & IEEE80211_C_TDMA) == 0)))
|
2008-04-20 20:35:46 +00:00
|
|
|
continue;
|
|
|
|
bit = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
oflags = ifp->if_flags;
|
|
|
|
if (bit)
|
|
|
|
ifp->if_flags |= flag;
|
|
|
|
else
|
|
|
|
ifp->if_flags &= ~flag;
|
|
|
|
if ((ifp->if_flags ^ oflags) & flag) {
|
|
|
|
/* XXX should we return 1/0 and let caller do this? */
|
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
|
|
|
|
if (flag == IFF_PROMISC)
|
2009-05-02 15:14:18 +00:00
|
|
|
ieee80211_runtask(ic, &ic->ic_promisc_task);
|
2008-04-20 20:35:46 +00:00
|
|
|
else if (flag == IFF_ALLMULTI)
|
2009-05-02 15:14:18 +00:00
|
|
|
ieee80211_runtask(ic, &ic->ic_mcast_task);
|
2008-04-20 20:35:46 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Synchronize flag bit state in the com structure
|
|
|
|
* according to the state of all vap's. This is used,
|
|
|
|
* for example, to handle state changes via ioctls.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ieee80211_syncflag_locked(struct ieee80211com *ic, int flag)
|
|
|
|
{
|
|
|
|
struct ieee80211vap *vap;
|
|
|
|
int bit;
|
|
|
|
|
|
|
|
IEEE80211_LOCK_ASSERT(ic);
|
|
|
|
|
|
|
|
bit = 0;
|
|
|
|
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
|
|
|
|
if (vap->iv_flags & flag) {
|
|
|
|
bit = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (bit)
|
|
|
|
ic->ic_flags |= flag;
|
|
|
|
else
|
|
|
|
ic->ic_flags &= ~flag;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
ieee80211_syncflag(struct ieee80211vap *vap, int flag)
|
|
|
|
{
|
|
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
|
|
|
|
|
|
IEEE80211_LOCK(ic);
|
|
|
|
if (flag < 0) {
|
|
|
|
flag = -flag;
|
|
|
|
vap->iv_flags &= ~flag;
|
|
|
|
} else
|
|
|
|
vap->iv_flags |= flag;
|
|
|
|
ieee80211_syncflag_locked(ic, flag);
|
|
|
|
IEEE80211_UNLOCK(ic);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2009-06-07 22:00:22 +00:00
|
|
|
* Synchronize flags_ht bit state in the com structure
|
|
|
|
* according to the state of all vap's. This is used,
|
|
|
|
* for example, to handle state changes via ioctls.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ieee80211_syncflag_ht_locked(struct ieee80211com *ic, int flag)
|
|
|
|
{
|
|
|
|
struct ieee80211vap *vap;
|
|
|
|
int bit;
|
|
|
|
|
|
|
|
IEEE80211_LOCK_ASSERT(ic);
|
|
|
|
|
|
|
|
bit = 0;
|
|
|
|
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
|
|
|
|
if (vap->iv_flags_ht & flag) {
|
|
|
|
bit = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (bit)
|
|
|
|
ic->ic_flags_ht |= flag;
|
|
|
|
else
|
|
|
|
ic->ic_flags_ht &= ~flag;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
ieee80211_syncflag_ht(struct ieee80211vap *vap, int flag)
|
|
|
|
{
|
|
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
|
|
|
|
|
|
IEEE80211_LOCK(ic);
|
|
|
|
if (flag < 0) {
|
|
|
|
flag = -flag;
|
|
|
|
vap->iv_flags_ht &= ~flag;
|
|
|
|
} else
|
|
|
|
vap->iv_flags_ht |= flag;
|
|
|
|
ieee80211_syncflag_ht_locked(ic, flag);
|
|
|
|
IEEE80211_UNLOCK(ic);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Synchronize flags_ext bit state in the com structure
|
2008-04-20 20:35:46 +00:00
|
|
|
* according to the state of all vap's. This is used,
|
|
|
|
* for example, to handle state changes via ioctls.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
ieee80211_syncflag_ext_locked(struct ieee80211com *ic, int flag)
|
|
|
|
{
|
|
|
|
struct ieee80211vap *vap;
|
|
|
|
int bit;
|
|
|
|
|
|
|
|
IEEE80211_LOCK_ASSERT(ic);
|
|
|
|
|
|
|
|
bit = 0;
|
|
|
|
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
|
|
|
|
if (vap->iv_flags_ext & flag) {
|
|
|
|
bit = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (bit)
|
|
|
|
ic->ic_flags_ext |= flag;
|
|
|
|
else
|
|
|
|
ic->ic_flags_ext &= ~flag;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
ieee80211_syncflag_ext(struct ieee80211vap *vap, int flag)
|
|
|
|
{
|
|
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
|
|
|
|
|
|
IEEE80211_LOCK(ic);
|
|
|
|
if (flag < 0) {
|
|
|
|
flag = -flag;
|
|
|
|
vap->iv_flags_ext &= ~flag;
|
|
|
|
} else
|
|
|
|
vap->iv_flags_ext |= flag;
|
|
|
|
ieee80211_syncflag_ext_locked(ic, flag);
|
|
|
|
IEEE80211_UNLOCK(ic);
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
|
2007-01-15 01:12:28 +00:00
|
|
|
static __inline int
|
|
|
|
mapgsm(u_int freq, u_int flags)
|
|
|
|
{
|
|
|
|
freq *= 10;
|
|
|
|
if (flags & IEEE80211_CHAN_QUARTER)
|
|
|
|
freq += 5;
|
|
|
|
else if (flags & IEEE80211_CHAN_HALF)
|
|
|
|
freq += 10;
|
|
|
|
else
|
|
|
|
freq += 20;
|
|
|
|
/* NB: there is no 907/20 wide but leave room */
|
|
|
|
return (freq - 906*10) / 5;
|
|
|
|
}
|
|
|
|
|
|
|
|
static __inline int
|
|
|
|
mappsb(u_int freq, u_int flags)
|
|
|
|
{
|
|
|
|
return 37 + ((freq * 10) + ((freq % 5) == 2 ? 5 : 0) - 49400) / 5;
|
|
|
|
}
|
|
|
|
|
2003-06-23 16:55:01 +00:00
|
|
|
/*
|
|
|
|
* Convert MHz frequency to IEEE channel number.
|
|
|
|
*/
|
2005-11-15 05:56:32 +00:00
|
|
|
int
|
2003-06-23 16:55:01 +00:00
|
|
|
ieee80211_mhz2ieee(u_int freq, u_int flags)
|
|
|
|
{
|
2007-03-11 06:24:26 +00:00
|
|
|
#define IS_FREQ_IN_PSB(_freq) ((_freq) > 4940 && (_freq) < 4990)
|
2007-01-15 01:12:28 +00:00
|
|
|
if (flags & IEEE80211_CHAN_GSM)
|
|
|
|
return mapgsm(freq, flags);
|
2003-06-23 16:55:01 +00:00
|
|
|
if (flags & IEEE80211_CHAN_2GHZ) { /* 2GHz band */
|
|
|
|
if (freq == 2484)
|
|
|
|
return 14;
|
|
|
|
if (freq < 2484)
|
2005-11-15 05:56:32 +00:00
|
|
|
return ((int) freq - 2407) / 5;
|
2003-06-23 16:55:01 +00:00
|
|
|
else
|
|
|
|
return 15 + ((freq - 2512) / 20);
|
2003-06-27 02:53:00 +00:00
|
|
|
} else if (flags & IEEE80211_CHAN_5GHZ) { /* 5Ghz band */
|
2006-12-27 18:46:18 +00:00
|
|
|
if (freq <= 5000) {
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/* XXX check regdomain? */
|
2007-03-11 06:24:26 +00:00
|
|
|
if (IS_FREQ_IN_PSB(freq))
|
2007-01-15 01:12:28 +00:00
|
|
|
return mappsb(freq, flags);
|
2005-11-15 05:56:32 +00:00
|
|
|
return (freq - 4000) / 5;
|
2006-12-27 18:46:18 +00:00
|
|
|
} else
|
2005-11-15 05:56:32 +00:00
|
|
|
return (freq - 5000) / 5;
|
2003-06-23 16:55:01 +00:00
|
|
|
} else { /* either, guess */
|
|
|
|
if (freq == 2484)
|
|
|
|
return 14;
|
2007-01-15 01:12:28 +00:00
|
|
|
if (freq < 2484) {
|
|
|
|
if (907 <= freq && freq <= 922)
|
|
|
|
return mapgsm(freq, flags);
|
2005-11-15 05:56:32 +00:00
|
|
|
return ((int) freq - 2407) / 5;
|
2007-01-15 01:12:28 +00:00
|
|
|
}
|
2005-11-15 05:56:32 +00:00
|
|
|
if (freq < 5000) {
|
2007-03-11 06:24:26 +00:00
|
|
|
if (IS_FREQ_IN_PSB(freq))
|
2007-01-15 01:12:28 +00:00
|
|
|
return mappsb(freq, flags);
|
2006-12-27 18:46:18 +00:00
|
|
|
else if (freq > 4900)
|
2005-11-15 05:56:32 +00:00
|
|
|
return (freq - 4000) / 5;
|
|
|
|
else
|
|
|
|
return 15 + ((freq - 2512) / 20);
|
|
|
|
}
|
2003-06-23 16:55:01 +00:00
|
|
|
return (freq - 5000) / 5;
|
|
|
|
}
|
2007-03-11 06:24:26 +00:00
|
|
|
#undef IS_FREQ_IN_PSB
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Convert channel to IEEE channel number.
|
|
|
|
*/
|
2005-11-15 05:56:32 +00:00
|
|
|
int
|
2007-01-06 05:38:18 +00:00
|
|
|
ieee80211_chan2ieee(struct ieee80211com *ic, const struct ieee80211_channel *c)
|
2003-06-23 16:55:01 +00:00
|
|
|
{
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
if (c == NULL) {
|
2004-12-08 17:26:47 +00:00
|
|
|
if_printf(ic->ic_ifp, "invalid channel (NULL)\n");
|
2003-06-29 20:10:54 +00:00
|
|
|
return 0; /* XXX */
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
return (c == IEEE80211_CHAN_ANYC ? IEEE80211_CHAN_ANY : c->ic_ieee);
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Convert IEEE channel number to MHz frequency.
|
|
|
|
*/
|
|
|
|
u_int
|
|
|
|
ieee80211_ieee2mhz(u_int chan, u_int flags)
|
|
|
|
{
|
2007-01-15 01:12:28 +00:00
|
|
|
if (flags & IEEE80211_CHAN_GSM)
|
|
|
|
return 907 + 5 * (chan / 10);
|
2003-06-23 16:55:01 +00:00
|
|
|
if (flags & IEEE80211_CHAN_2GHZ) { /* 2GHz band */
|
|
|
|
if (chan == 14)
|
|
|
|
return 2484;
|
|
|
|
if (chan < 14)
|
|
|
|
return 2407 + chan*5;
|
|
|
|
else
|
|
|
|
return 2512 + ((chan-15)*20);
|
|
|
|
} else if (flags & IEEE80211_CHAN_5GHZ) {/* 5Ghz band */
|
2006-12-27 18:46:18 +00:00
|
|
|
if (flags & (IEEE80211_CHAN_HALF|IEEE80211_CHAN_QUARTER)) {
|
|
|
|
chan -= 37;
|
|
|
|
return 4940 + chan*5 + (chan % 5 ? 2 : 0);
|
|
|
|
}
|
2003-06-23 16:55:01 +00:00
|
|
|
return 5000 + (chan*5);
|
|
|
|
} else { /* either, guess */
|
2007-01-15 01:12:28 +00:00
|
|
|
/* XXX can't distinguish PSB+GSM channels */
|
2003-06-23 16:55:01 +00:00
|
|
|
if (chan == 14)
|
|
|
|
return 2484;
|
|
|
|
if (chan < 14) /* 0-13 */
|
|
|
|
return 2407 + chan*5;
|
|
|
|
if (chan < 27) /* 15-26 */
|
|
|
|
return 2512 + ((chan-15)*20);
|
|
|
|
return 5000 + (chan*5);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/*
|
|
|
|
* Locate a channel given a frequency+flags. We cache
|
2008-04-20 20:35:46 +00:00
|
|
|
* the previous lookup to optimize switching between two
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
* channels--as happens with dynamic turbo.
|
|
|
|
*/
|
|
|
|
struct ieee80211_channel *
|
|
|
|
ieee80211_find_channel(struct ieee80211com *ic, int freq, int flags)
|
|
|
|
{
|
|
|
|
struct ieee80211_channel *c;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
flags &= IEEE80211_CHAN_ALLTURBO;
|
|
|
|
c = ic->ic_prevchan;
|
|
|
|
if (c != NULL && c->ic_freq == freq &&
|
|
|
|
(c->ic_flags & IEEE80211_CHAN_ALLTURBO) == flags)
|
|
|
|
return c;
|
|
|
|
/* brute force search */
|
|
|
|
for (i = 0; i < ic->ic_nchans; i++) {
|
|
|
|
c = &ic->ic_channels[i];
|
|
|
|
if (c->ic_freq == freq &&
|
|
|
|
(c->ic_flags & IEEE80211_CHAN_ALLTURBO) == flags)
|
|
|
|
return c;
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2007-11-23 05:57:20 +00:00
|
|
|
/*
|
|
|
|
* Locate a channel given a channel number+flags. We cache
|
|
|
|
* the previous lookup to optimize switching between two
|
|
|
|
* channels--as happens with dynamic turbo.
|
|
|
|
*/
|
|
|
|
struct ieee80211_channel *
|
|
|
|
ieee80211_find_channel_byieee(struct ieee80211com *ic, int ieee, int flags)
|
|
|
|
{
|
|
|
|
struct ieee80211_channel *c;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
flags &= IEEE80211_CHAN_ALLTURBO;
|
|
|
|
c = ic->ic_prevchan;
|
|
|
|
if (c != NULL && c->ic_ieee == ieee &&
|
|
|
|
(c->ic_flags & IEEE80211_CHAN_ALLTURBO) == flags)
|
|
|
|
return c;
|
|
|
|
/* brute force search */
|
|
|
|
for (i = 0; i < ic->ic_nchans; i++) {
|
|
|
|
c = &ic->ic_channels[i];
|
|
|
|
if (c->ic_ieee == ieee &&
|
|
|
|
(c->ic_flags & IEEE80211_CHAN_ALLTURBO) == flags)
|
|
|
|
return c;
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
static void
|
2008-04-20 20:35:46 +00:00
|
|
|
addmedia(struct ifmedia *media, int caps, int addsta, int mode, int mword)
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
{
|
|
|
|
#define ADD(_ic, _s, _o) \
|
2008-04-20 20:35:46 +00:00
|
|
|
ifmedia_add(media, \
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
IFM_MAKEWORD(IFM_IEEE80211, (_s), (_o), 0), 0, NULL)
|
|
|
|
static const u_int mopts[IEEE80211_MODE_MAX] = {
|
2009-02-03 22:32:26 +00:00
|
|
|
[IEEE80211_MODE_AUTO] = IFM_AUTO,
|
|
|
|
[IEEE80211_MODE_11A] = IFM_IEEE80211_11A,
|
|
|
|
[IEEE80211_MODE_11B] = IFM_IEEE80211_11B,
|
|
|
|
[IEEE80211_MODE_11G] = IFM_IEEE80211_11G,
|
|
|
|
[IEEE80211_MODE_FH] = IFM_IEEE80211_FH,
|
|
|
|
[IEEE80211_MODE_TURBO_A] = IFM_IEEE80211_11A|IFM_IEEE80211_TURBO,
|
|
|
|
[IEEE80211_MODE_TURBO_G] = IFM_IEEE80211_11G|IFM_IEEE80211_TURBO,
|
|
|
|
[IEEE80211_MODE_STURBO_A] = IFM_IEEE80211_11A|IFM_IEEE80211_TURBO,
|
2009-02-19 05:21:54 +00:00
|
|
|
[IEEE80211_MODE_HALF] = IFM_IEEE80211_11A, /* XXX */
|
|
|
|
[IEEE80211_MODE_QUARTER] = IFM_IEEE80211_11A, /* XXX */
|
2009-02-03 22:32:26 +00:00
|
|
|
[IEEE80211_MODE_11NA] = IFM_IEEE80211_11NA,
|
|
|
|
[IEEE80211_MODE_11NG] = IFM_IEEE80211_11NG,
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
};
|
|
|
|
u_int mopt;
|
|
|
|
|
|
|
|
mopt = mopts[mode];
|
2008-04-20 20:35:46 +00:00
|
|
|
if (addsta)
|
|
|
|
ADD(ic, mword, mopt); /* STA mode has no cap */
|
|
|
|
if (caps & IEEE80211_C_IBSS)
|
|
|
|
ADD(media, mword, mopt | IFM_IEEE80211_ADHOC);
|
|
|
|
if (caps & IEEE80211_C_HOSTAP)
|
|
|
|
ADD(media, mword, mopt | IFM_IEEE80211_HOSTAP);
|
|
|
|
if (caps & IEEE80211_C_AHDEMO)
|
|
|
|
ADD(media, mword, mopt | IFM_IEEE80211_ADHOC | IFM_FLAG0);
|
|
|
|
if (caps & IEEE80211_C_MONITOR)
|
|
|
|
ADD(media, mword, mopt | IFM_IEEE80211_MONITOR);
|
|
|
|
if (caps & IEEE80211_C_WDS)
|
|
|
|
ADD(media, mword, mopt | IFM_IEEE80211_WDS);
|
Implementation of the upcoming Wireless Mesh standard, 802.11s, on the
net80211 wireless stack. This work is based on the March 2009 D3.0 draft
standard. This standard is expected to become final next year.
This includes two main net80211 modules, ieee80211_mesh.c
which deals with peer link management, link metric calculation,
routing table control and mesh configuration and ieee80211_hwmp.c
which deals with the actually routing process on the mesh network.
HWMP is the mandatory routing protocol on by the mesh standard, but
others, such as RA-OLSR, can be implemented.
Authentication and encryption are not implemented.
There are several scripts under tools/tools/net80211/scripts that can be
used to test different mesh network topologies and they also teach you
how to setup a mesh vap (for the impatient: ifconfig wlan0 create
wlandev ... wlanmode mesh).
A new build option is available: IEEE80211_SUPPORT_MESH and it's enabled
by default on GENERIC kernels for i386, amd64, sparc64 and pc98.
Drivers that support mesh networks right now are: ath, ral and mwl.
More information at: http://wiki.freebsd.org/WifiMesh
Please note that this work is experimental. Also, please note that
bridging a mesh vap with another network interface is not yet supported.
Many thanks to the FreeBSD Foundation for sponsoring this project and to
Sam Leffler for his support.
Also, I would like to thank Gateworks Corporation for sending me a
Cambria board which was used during the development of this project.
Reviewed by: sam
Approved by: re (kensmith)
Obtained from: projects/mesh11s
2009-07-11 15:02:45 +00:00
|
|
|
if (caps & IEEE80211_C_MBSS)
|
|
|
|
ADD(media, mword, mopt | IFM_IEEE80211_MBSS);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
#undef ADD
|
|
|
|
}
|
|
|
|
|
2003-06-23 16:55:01 +00:00
|
|
|
/*
|
|
|
|
* Setup the media data structures according to the channel and
|
2008-04-20 20:35:46 +00:00
|
|
|
* rate tables.
|
2003-06-23 16:55:01 +00:00
|
|
|
*/
|
2008-04-20 20:35:46 +00:00
|
|
|
static int
|
|
|
|
ieee80211_media_setup(struct ieee80211com *ic,
|
|
|
|
struct ifmedia *media, int caps, int addsta,
|
2003-06-23 16:55:01 +00:00
|
|
|
ifm_change_cb_t media_change, ifm_stat_cb_t media_stat)
|
|
|
|
{
|
2011-12-17 10:23:17 +00:00
|
|
|
int i, j, rate, maxrate, mword, r;
|
|
|
|
enum ieee80211_phymode mode;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
const struct ieee80211_rateset *rs;
|
2003-06-23 16:55:01 +00:00
|
|
|
struct ieee80211_rateset allrates;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Fill in media characteristics.
|
|
|
|
*/
|
2008-04-20 20:35:46 +00:00
|
|
|
ifmedia_init(media, 0, media_change, media_stat);
|
2003-06-23 16:55:01 +00:00
|
|
|
maxrate = 0;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/*
|
|
|
|
* Add media for legacy operating modes.
|
|
|
|
*/
|
2003-06-23 16:55:01 +00:00
|
|
|
memset(&allrates, 0, sizeof(allrates));
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
for (mode = IEEE80211_MODE_AUTO; mode < IEEE80211_MODE_11NA; mode++) {
|
2007-03-11 22:37:32 +00:00
|
|
|
if (isclr(ic->ic_modecaps, mode))
|
2003-06-23 16:55:01 +00:00
|
|
|
continue;
|
2008-04-20 20:35:46 +00:00
|
|
|
addmedia(media, caps, addsta, mode, IFM_AUTO);
|
2003-06-23 16:55:01 +00:00
|
|
|
if (mode == IEEE80211_MODE_AUTO)
|
|
|
|
continue;
|
|
|
|
rs = &ic->ic_sup_rates[mode];
|
|
|
|
for (i = 0; i < rs->rs_nrates; i++) {
|
|
|
|
rate = rs->rs_rates[i];
|
|
|
|
mword = ieee80211_rate2media(ic, rate, mode);
|
|
|
|
if (mword == 0)
|
|
|
|
continue;
|
2008-04-20 20:35:46 +00:00
|
|
|
addmedia(media, caps, addsta, mode, mword);
|
2003-06-23 16:55:01 +00:00
|
|
|
/*
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
* Add legacy rate to the collection of all rates.
|
2003-06-23 16:55:01 +00:00
|
|
|
*/
|
|
|
|
r = rate & IEEE80211_RATE_VAL;
|
|
|
|
for (j = 0; j < allrates.rs_nrates; j++)
|
|
|
|
if (allrates.rs_rates[j] == r)
|
|
|
|
break;
|
|
|
|
if (j == allrates.rs_nrates) {
|
|
|
|
/* unique, add to the set */
|
|
|
|
allrates.rs_rates[j] = r;
|
|
|
|
allrates.rs_nrates++;
|
|
|
|
}
|
|
|
|
rate = (rate & IEEE80211_RATE_VAL) / 2;
|
|
|
|
if (rate > maxrate)
|
|
|
|
maxrate = rate;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
for (i = 0; i < allrates.rs_nrates; i++) {
|
|
|
|
mword = ieee80211_rate2media(ic, allrates.rs_rates[i],
|
|
|
|
IEEE80211_MODE_AUTO);
|
|
|
|
if (mword == 0)
|
|
|
|
continue;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/* NB: remove media options from mword */
|
2008-04-20 20:35:46 +00:00
|
|
|
addmedia(media, caps, addsta,
|
|
|
|
IEEE80211_MODE_AUTO, IFM_SUBTYPE(mword));
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
}
|
|
|
|
/*
|
|
|
|
* Add HT/11n media. Note that we do not have enough
|
|
|
|
* bits in the media subtype to express the MCS so we
|
|
|
|
* use a "placeholder" media subtype and any fixed MCS
|
|
|
|
* must be specified with a different mechanism.
|
|
|
|
*/
|
2009-02-19 05:21:54 +00:00
|
|
|
for (; mode <= IEEE80211_MODE_11NG; mode++) {
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
if (isclr(ic->ic_modecaps, mode))
|
|
|
|
continue;
|
2008-04-20 20:35:46 +00:00
|
|
|
addmedia(media, caps, addsta, mode, IFM_AUTO);
|
|
|
|
addmedia(media, caps, addsta, mode, IFM_IEEE80211_MCS);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
}
|
|
|
|
if (isset(ic->ic_modecaps, IEEE80211_MODE_11NA) ||
|
|
|
|
isset(ic->ic_modecaps, IEEE80211_MODE_11NG)) {
|
2008-04-20 20:35:46 +00:00
|
|
|
addmedia(media, caps, addsta,
|
|
|
|
IEEE80211_MODE_AUTO, IFM_IEEE80211_MCS);
|
2011-03-13 11:47:43 +00:00
|
|
|
i = ic->ic_txstream * 8 - 1;
|
|
|
|
if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) &&
|
|
|
|
(ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI40))
|
|
|
|
rate = ieee80211_htrates[i].ht40_rate_400ns;
|
|
|
|
else if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40))
|
|
|
|
rate = ieee80211_htrates[i].ht40_rate_800ns;
|
|
|
|
else if ((ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI20))
|
|
|
|
rate = ieee80211_htrates[i].ht20_rate_400ns;
|
|
|
|
else
|
|
|
|
rate = ieee80211_htrates[i].ht20_rate_800ns;
|
|
|
|
if (rate > maxrate)
|
|
|
|
maxrate = rate;
|
2008-04-20 20:35:46 +00:00
|
|
|
}
|
|
|
|
return maxrate;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
ieee80211_media_init(struct ieee80211com *ic)
|
|
|
|
{
|
|
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
int maxrate;
|
|
|
|
|
|
|
|
/* NB: this works because the structure is initialized to zero */
|
|
|
|
if (!LIST_EMPTY(&ic->ic_media.ifm_list)) {
|
|
|
|
/*
|
|
|
|
* We are re-initializing the channel list; clear
|
|
|
|
* the existing media state as the media routines
|
|
|
|
* don't suppress duplicates.
|
|
|
|
*/
|
|
|
|
ifmedia_removeall(&ic->ic_media);
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_chan_init(ic);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
/*
|
|
|
|
* Recalculate media settings in case new channel list changes
|
|
|
|
* the set of available modes.
|
|
|
|
*/
|
|
|
|
maxrate = ieee80211_media_setup(ic, &ic->ic_media, ic->ic_caps, 1,
|
|
|
|
ieee80211com_media_change, ieee80211com_media_status);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/* NB: strip explicit mode; we're actually in autoselect */
|
|
|
|
ifmedia_set(&ic->ic_media,
|
2009-02-03 22:32:26 +00:00
|
|
|
media_status(ic->ic_opmode, ic->ic_curchan) &~
|
|
|
|
(IFM_MMASK | IFM_IEEE80211_TURBO));
|
2003-06-23 16:55:01 +00:00
|
|
|
if (maxrate)
|
|
|
|
ifp->if_baudrate = IF_Mbps(maxrate);
|
2008-04-20 20:35:46 +00:00
|
|
|
|
|
|
|
/* XXX need to propagate new media settings to vap's */
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
|
2009-02-19 05:21:54 +00:00
|
|
|
/* XXX inline or eliminate? */
|
2006-12-27 18:46:18 +00:00
|
|
|
const struct ieee80211_rateset *
|
|
|
|
ieee80211_get_suprates(struct ieee80211com *ic, const struct ieee80211_channel *c)
|
|
|
|
{
|
2009-02-19 04:33:36 +00:00
|
|
|
/* XXX does this work for 11ng basic rates? */
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
return &ic->ic_sup_rates[ieee80211_chan2mode(c)];
|
2006-12-27 18:46:18 +00:00
|
|
|
}
|
|
|
|
|
2004-12-08 17:26:47 +00:00
|
|
|
void
|
|
|
|
ieee80211_announce(struct ieee80211com *ic)
|
|
|
|
{
|
|
|
|
struct ifnet *ifp = ic->ic_ifp;
|
2011-12-17 10:23:17 +00:00
|
|
|
int i, rate, mword;
|
|
|
|
enum ieee80211_phymode mode;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
const struct ieee80211_rateset *rs;
|
2004-12-08 17:26:47 +00:00
|
|
|
|
2007-09-18 20:51:55 +00:00
|
|
|
/* NB: skip AUTO since it has no rates */
|
|
|
|
for (mode = IEEE80211_MODE_AUTO+1; mode < IEEE80211_MODE_11NA; mode++) {
|
2007-03-11 22:37:32 +00:00
|
|
|
if (isclr(ic->ic_modecaps, mode))
|
2004-12-08 17:26:47 +00:00
|
|
|
continue;
|
|
|
|
if_printf(ifp, "%s rates: ", ieee80211_phymode_name[mode]);
|
|
|
|
rs = &ic->ic_sup_rates[mode];
|
|
|
|
for (i = 0; i < rs->rs_nrates; i++) {
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
mword = ieee80211_rate2media(ic, rs->rs_rates[i], mode);
|
2004-12-08 17:26:47 +00:00
|
|
|
if (mword == 0)
|
|
|
|
continue;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
rate = ieee80211_media2rate(mword);
|
2004-12-08 17:26:47 +00:00
|
|
|
printf("%s%d%sMbps", (i != 0 ? " " : ""),
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
rate / 2, ((rate & 0x1) != 0 ? ".5" : ""));
|
2004-12-08 17:26:47 +00:00
|
|
|
}
|
|
|
|
printf("\n");
|
|
|
|
}
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
ieee80211_ht_announce(ic);
|
2004-12-08 17:26:47 +00:00
|
|
|
}
|
|
|
|
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
void
|
|
|
|
ieee80211_announce_channels(struct ieee80211com *ic)
|
2003-06-23 16:55:01 +00:00
|
|
|
{
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
const struct ieee80211_channel *c;
|
|
|
|
char type;
|
|
|
|
int i, cw;
|
|
|
|
|
|
|
|
printf("Chan Freq CW RegPwr MinPwr MaxPwr\n");
|
|
|
|
for (i = 0; i < ic->ic_nchans; i++) {
|
|
|
|
c = &ic->ic_channels[i];
|
|
|
|
if (IEEE80211_IS_CHAN_ST(c))
|
|
|
|
type = 'S';
|
|
|
|
else if (IEEE80211_IS_CHAN_108A(c))
|
|
|
|
type = 'T';
|
|
|
|
else if (IEEE80211_IS_CHAN_108G(c))
|
|
|
|
type = 'G';
|
|
|
|
else if (IEEE80211_IS_CHAN_HT(c))
|
|
|
|
type = 'n';
|
|
|
|
else if (IEEE80211_IS_CHAN_A(c))
|
|
|
|
type = 'a';
|
|
|
|
else if (IEEE80211_IS_CHAN_ANYG(c))
|
|
|
|
type = 'g';
|
|
|
|
else if (IEEE80211_IS_CHAN_B(c))
|
|
|
|
type = 'b';
|
|
|
|
else
|
|
|
|
type = 'f';
|
|
|
|
if (IEEE80211_IS_CHAN_HT40(c) || IEEE80211_IS_CHAN_TURBO(c))
|
|
|
|
cw = 40;
|
|
|
|
else if (IEEE80211_IS_CHAN_HALF(c))
|
|
|
|
cw = 10;
|
|
|
|
else if (IEEE80211_IS_CHAN_QUARTER(c))
|
|
|
|
cw = 5;
|
|
|
|
else
|
|
|
|
cw = 20;
|
|
|
|
printf("%4d %4d%c %2d%c %6d %4d.%d %4d.%d\n"
|
|
|
|
, c->ic_ieee, c->ic_freq, type
|
|
|
|
, cw
|
|
|
|
, IEEE80211_IS_CHAN_HT40U(c) ? '+' :
|
|
|
|
IEEE80211_IS_CHAN_HT40D(c) ? '-' : ' '
|
|
|
|
, c->ic_maxregpower
|
|
|
|
, c->ic_minpower / 2, c->ic_minpower & 1 ? 5 : 0
|
|
|
|
, c->ic_maxpower / 2, c->ic_maxpower & 1 ? 5 : 0
|
|
|
|
);
|
|
|
|
}
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
static int
|
2008-10-25 23:31:20 +00:00
|
|
|
media2mode(const struct ifmedia_entry *ime, uint32_t flags, uint16_t *mode)
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
{
|
2003-06-23 16:55:01 +00:00
|
|
|
switch (IFM_MODE(ime->ifm_media)) {
|
|
|
|
case IFM_IEEE80211_11A:
|
2008-04-20 20:35:46 +00:00
|
|
|
*mode = IEEE80211_MODE_11A;
|
2003-06-23 16:55:01 +00:00
|
|
|
break;
|
|
|
|
case IFM_IEEE80211_11B:
|
2008-04-20 20:35:46 +00:00
|
|
|
*mode = IEEE80211_MODE_11B;
|
2003-06-23 16:55:01 +00:00
|
|
|
break;
|
|
|
|
case IFM_IEEE80211_11G:
|
2008-04-20 20:35:46 +00:00
|
|
|
*mode = IEEE80211_MODE_11G;
|
2003-06-23 16:55:01 +00:00
|
|
|
break;
|
2004-01-15 08:44:27 +00:00
|
|
|
case IFM_IEEE80211_FH:
|
2008-04-20 20:35:46 +00:00
|
|
|
*mode = IEEE80211_MODE_FH;
|
2004-01-15 08:44:27 +00:00
|
|
|
break;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
case IFM_IEEE80211_11NA:
|
2008-04-20 20:35:46 +00:00
|
|
|
*mode = IEEE80211_MODE_11NA;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
break;
|
|
|
|
case IFM_IEEE80211_11NG:
|
2008-04-20 20:35:46 +00:00
|
|
|
*mode = IEEE80211_MODE_11NG;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
break;
|
2003-06-23 16:55:01 +00:00
|
|
|
case IFM_AUTO:
|
2008-04-20 20:35:46 +00:00
|
|
|
*mode = IEEE80211_MODE_AUTO;
|
2003-06-23 16:55:01 +00:00
|
|
|
break;
|
|
|
|
default:
|
2008-04-20 20:35:46 +00:00
|
|
|
return 0;
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
/*
|
2004-12-08 17:26:47 +00:00
|
|
|
* Turbo mode is an ``option''.
|
|
|
|
* XXX does not apply to AUTO
|
2003-06-23 16:55:01 +00:00
|
|
|
*/
|
|
|
|
if (ime->ifm_media & IFM_IEEE80211_TURBO) {
|
2008-04-20 20:35:46 +00:00
|
|
|
if (*mode == IEEE80211_MODE_11A) {
|
2008-10-25 23:31:20 +00:00
|
|
|
if (flags & IEEE80211_F_TURBOP)
|
2008-04-20 20:35:46 +00:00
|
|
|
*mode = IEEE80211_MODE_TURBO_A;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
else
|
2008-04-20 20:35:46 +00:00
|
|
|
*mode = IEEE80211_MODE_STURBO_A;
|
|
|
|
} else if (*mode == IEEE80211_MODE_11G)
|
|
|
|
*mode = IEEE80211_MODE_TURBO_G;
|
2004-12-08 17:26:47 +00:00
|
|
|
else
|
2008-04-20 20:35:46 +00:00
|
|
|
return 0;
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/* XXX HT40 +/- */
|
2008-04-20 20:35:46 +00:00
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2008-10-25 23:31:20 +00:00
|
|
|
* Handle a media change request on the underlying interface.
|
2008-04-20 20:35:46 +00:00
|
|
|
*/
|
|
|
|
int
|
|
|
|
ieee80211com_media_change(struct ifnet *ifp)
|
|
|
|
{
|
2008-10-25 23:31:20 +00:00
|
|
|
return EINVAL;
|
2008-04-20 20:35:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Handle a media change request on the vap interface.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
ieee80211_media_change(struct ifnet *ifp)
|
|
|
|
{
|
|
|
|
struct ieee80211vap *vap = ifp->if_softc;
|
|
|
|
struct ifmedia_entry *ime = vap->iv_media.ifm_cur;
|
2008-10-25 23:31:20 +00:00
|
|
|
uint16_t newmode;
|
2008-04-20 20:35:46 +00:00
|
|
|
|
2008-10-25 23:31:20 +00:00
|
|
|
if (!media2mode(ime, vap->iv_flags, &newmode))
|
2008-04-20 20:35:46 +00:00
|
|
|
return EINVAL;
|
2008-10-25 23:31:20 +00:00
|
|
|
if (vap->iv_des_mode != newmode) {
|
|
|
|
vap->iv_des_mode = newmode;
|
2009-06-02 20:00:43 +00:00
|
|
|
/* XXX kick state machine if up+running */
|
2008-04-20 20:35:46 +00:00
|
|
|
}
|
|
|
|
return 0;
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/*
|
|
|
|
* Common code to calculate the media status word
|
|
|
|
* from the operating mode and channel state.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
media_status(enum ieee80211_opmode opmode, const struct ieee80211_channel *chan)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
status = IFM_IEEE80211;
|
|
|
|
switch (opmode) {
|
|
|
|
case IEEE80211_M_STA:
|
|
|
|
break;
|
|
|
|
case IEEE80211_M_IBSS:
|
|
|
|
status |= IFM_IEEE80211_ADHOC;
|
|
|
|
break;
|
|
|
|
case IEEE80211_M_HOSTAP:
|
|
|
|
status |= IFM_IEEE80211_HOSTAP;
|
|
|
|
break;
|
|
|
|
case IEEE80211_M_MONITOR:
|
|
|
|
status |= IFM_IEEE80211_MONITOR;
|
|
|
|
break;
|
|
|
|
case IEEE80211_M_AHDEMO:
|
|
|
|
status |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
|
|
|
|
break;
|
|
|
|
case IEEE80211_M_WDS:
|
2008-04-20 20:35:46 +00:00
|
|
|
status |= IFM_IEEE80211_WDS;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
break;
|
Implementation of the upcoming Wireless Mesh standard, 802.11s, on the
net80211 wireless stack. This work is based on the March 2009 D3.0 draft
standard. This standard is expected to become final next year.
This includes two main net80211 modules, ieee80211_mesh.c
which deals with peer link management, link metric calculation,
routing table control and mesh configuration and ieee80211_hwmp.c
which deals with the actually routing process on the mesh network.
HWMP is the mandatory routing protocol on by the mesh standard, but
others, such as RA-OLSR, can be implemented.
Authentication and encryption are not implemented.
There are several scripts under tools/tools/net80211/scripts that can be
used to test different mesh network topologies and they also teach you
how to setup a mesh vap (for the impatient: ifconfig wlan0 create
wlandev ... wlanmode mesh).
A new build option is available: IEEE80211_SUPPORT_MESH and it's enabled
by default on GENERIC kernels for i386, amd64, sparc64 and pc98.
Drivers that support mesh networks right now are: ath, ral and mwl.
More information at: http://wiki.freebsd.org/WifiMesh
Please note that this work is experimental. Also, please note that
bridging a mesh vap with another network interface is not yet supported.
Many thanks to the FreeBSD Foundation for sponsoring this project and to
Sam Leffler for his support.
Also, I would like to thank Gateworks Corporation for sending me a
Cambria board which was used during the development of this project.
Reviewed by: sam
Approved by: re (kensmith)
Obtained from: projects/mesh11s
2009-07-11 15:02:45 +00:00
|
|
|
case IEEE80211_M_MBSS:
|
|
|
|
status |= IFM_IEEE80211_MBSS;
|
|
|
|
break;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
}
|
|
|
|
if (IEEE80211_IS_CHAN_HTA(chan)) {
|
|
|
|
status |= IFM_IEEE80211_11NA;
|
|
|
|
} else if (IEEE80211_IS_CHAN_HTG(chan)) {
|
|
|
|
status |= IFM_IEEE80211_11NG;
|
|
|
|
} else if (IEEE80211_IS_CHAN_A(chan)) {
|
|
|
|
status |= IFM_IEEE80211_11A;
|
|
|
|
} else if (IEEE80211_IS_CHAN_B(chan)) {
|
|
|
|
status |= IFM_IEEE80211_11B;
|
|
|
|
} else if (IEEE80211_IS_CHAN_ANYG(chan)) {
|
|
|
|
status |= IFM_IEEE80211_11G;
|
|
|
|
} else if (IEEE80211_IS_CHAN_FHSS(chan)) {
|
|
|
|
status |= IFM_IEEE80211_FH;
|
|
|
|
}
|
|
|
|
/* XXX else complain? */
|
|
|
|
|
|
|
|
if (IEEE80211_IS_CHAN_TURBO(chan))
|
|
|
|
status |= IFM_IEEE80211_TURBO;
|
2008-04-20 20:35:46 +00:00
|
|
|
#if 0
|
|
|
|
if (IEEE80211_IS_CHAN_HT20(chan))
|
|
|
|
status |= IFM_IEEE80211_HT20;
|
|
|
|
if (IEEE80211_IS_CHAN_HT40(chan))
|
|
|
|
status |= IFM_IEEE80211_HT40;
|
|
|
|
#endif
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
2008-04-20 20:35:46 +00:00
|
|
|
static void
|
|
|
|
ieee80211com_media_status(struct ifnet *ifp, struct ifmediareq *imr)
|
|
|
|
{
|
|
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
struct ieee80211vap *vap;
|
|
|
|
|
|
|
|
imr->ifm_status = IFM_AVALID;
|
|
|
|
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
|
|
|
|
if (vap->iv_ifp->if_flags & IFF_UP) {
|
|
|
|
imr->ifm_status |= IFM_ACTIVE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
imr->ifm_active = media_status(ic->ic_opmode, ic->ic_curchan);
|
|
|
|
if (imr->ifm_status & IFM_ACTIVE)
|
|
|
|
imr->ifm_current = imr->ifm_active;
|
|
|
|
}
|
|
|
|
|
2003-06-23 16:55:01 +00:00
|
|
|
void
|
|
|
|
ieee80211_media_status(struct ifnet *ifp, struct ifmediareq *imr)
|
|
|
|
{
|
2008-04-20 20:35:46 +00:00
|
|
|
struct ieee80211vap *vap = ifp->if_softc;
|
|
|
|
struct ieee80211com *ic = vap->iv_ic;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
enum ieee80211_phymode mode;
|
2003-06-23 16:55:01 +00:00
|
|
|
|
|
|
|
imr->ifm_status = IFM_AVALID;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/*
|
|
|
|
* NB: use the current channel's mode to lock down a xmit
|
|
|
|
* rate only when running; otherwise we may have a mismatch
|
|
|
|
* in which case the rate will not be convertible.
|
|
|
|
*/
|
2014-04-23 22:43:39 +00:00
|
|
|
if (vap->iv_state == IEEE80211_S_RUN ||
|
|
|
|
vap->iv_state == IEEE80211_S_SLEEP) {
|
2003-06-23 16:55:01 +00:00
|
|
|
imr->ifm_status |= IFM_ACTIVE;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
mode = ieee80211_chan2mode(ic->ic_curchan);
|
|
|
|
} else
|
|
|
|
mode = IEEE80211_MODE_AUTO;
|
2008-04-20 20:35:46 +00:00
|
|
|
imr->ifm_active = media_status(vap->iv_opmode, ic->ic_curchan);
|
2004-12-08 17:26:47 +00:00
|
|
|
/*
|
|
|
|
* Calculate a current rate if possible.
|
|
|
|
*/
|
2008-04-20 20:35:46 +00:00
|
|
|
if (vap->iv_txparms[mode].ucastrate != IEEE80211_FIXED_RATE_NONE) {
|
2004-12-08 17:26:47 +00:00
|
|
|
/*
|
|
|
|
* A fixed rate is set, report that.
|
|
|
|
*/
|
|
|
|
imr->ifm_active |= ieee80211_rate2media(ic,
|
2008-04-20 20:35:46 +00:00
|
|
|
vap->iv_txparms[mode].ucastrate, mode);
|
|
|
|
} else if (vap->iv_opmode == IEEE80211_M_STA) {
|
2004-12-08 17:26:47 +00:00
|
|
|
/*
|
|
|
|
* In station mode report the current transmit rate.
|
|
|
|
*/
|
|
|
|
imr->ifm_active |= ieee80211_rate2media(ic,
|
2008-04-20 20:35:46 +00:00
|
|
|
vap->iv_bss->ni_txrate, mode);
|
2004-05-05 15:48:06 +00:00
|
|
|
} else
|
2004-12-08 17:26:47 +00:00
|
|
|
imr->ifm_active |= IFM_AUTO;
|
2008-04-20 20:35:46 +00:00
|
|
|
if (imr->ifm_status & IFM_ACTIVE)
|
|
|
|
imr->ifm_current = imr->ifm_active;
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set the current phy mode and recalculate the active channel
|
|
|
|
* set based on the available channels for this mode. Also
|
|
|
|
* select a new default/current channel if the current one is
|
|
|
|
* inappropriate for this mode.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
ieee80211_setmode(struct ieee80211com *ic, enum ieee80211_phymode mode)
|
|
|
|
{
|
|
|
|
/*
|
2007-01-15 01:12:28 +00:00
|
|
|
* Adjust basic rates in 11b/11g supported rate set.
|
|
|
|
* Note that if operating on a hal/quarter rate channel
|
|
|
|
* this is a noop as those rates sets are different
|
|
|
|
* and used instead.
|
2003-06-23 16:55:01 +00:00
|
|
|
*/
|
2007-01-15 01:12:28 +00:00
|
|
|
if (mode == IEEE80211_MODE_11G || mode == IEEE80211_MODE_11B)
|
2008-04-20 20:35:46 +00:00
|
|
|
ieee80211_setbasicrates(&ic->ic_sup_rates[mode], mode);
|
2007-01-15 01:12:28 +00:00
|
|
|
|
2003-06-23 16:55:01 +00:00
|
|
|
ic->ic_curmode = mode;
|
2004-12-08 17:26:47 +00:00
|
|
|
ieee80211_reset_erp(ic); /* reset ERP state */
|
|
|
|
|
2003-06-23 16:55:01 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
* Return the phy mode for with the specified channel.
|
2003-06-23 16:55:01 +00:00
|
|
|
*/
|
|
|
|
enum ieee80211_phymode
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
ieee80211_chan2mode(const struct ieee80211_channel *chan)
|
2003-06-23 16:55:01 +00:00
|
|
|
{
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
|
|
|
|
if (IEEE80211_IS_CHAN_HTA(chan))
|
|
|
|
return IEEE80211_MODE_11NA;
|
|
|
|
else if (IEEE80211_IS_CHAN_HTG(chan))
|
|
|
|
return IEEE80211_MODE_11NG;
|
|
|
|
else if (IEEE80211_IS_CHAN_108G(chan))
|
|
|
|
return IEEE80211_MODE_TURBO_G;
|
|
|
|
else if (IEEE80211_IS_CHAN_ST(chan))
|
|
|
|
return IEEE80211_MODE_STURBO_A;
|
|
|
|
else if (IEEE80211_IS_CHAN_TURBO(chan))
|
2005-12-12 18:38:20 +00:00
|
|
|
return IEEE80211_MODE_TURBO_A;
|
2009-02-19 05:21:54 +00:00
|
|
|
else if (IEEE80211_IS_CHAN_HALF(chan))
|
|
|
|
return IEEE80211_MODE_HALF;
|
|
|
|
else if (IEEE80211_IS_CHAN_QUARTER(chan))
|
|
|
|
return IEEE80211_MODE_QUARTER;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
else if (IEEE80211_IS_CHAN_A(chan))
|
2003-06-23 16:55:01 +00:00
|
|
|
return IEEE80211_MODE_11A;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
else if (IEEE80211_IS_CHAN_ANYG(chan))
|
2003-06-23 16:55:01 +00:00
|
|
|
return IEEE80211_MODE_11G;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
else if (IEEE80211_IS_CHAN_B(chan))
|
2003-06-23 16:55:01 +00:00
|
|
|
return IEEE80211_MODE_11B;
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
else if (IEEE80211_IS_CHAN_FHSS(chan))
|
|
|
|
return IEEE80211_MODE_FH;
|
|
|
|
|
|
|
|
/* NB: should not get here */
|
|
|
|
printf("%s: cannot map channel to mode; freq %u flags 0x%x\n",
|
|
|
|
__func__, chan->ic_freq, chan->ic_flags);
|
|
|
|
return IEEE80211_MODE_11B;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct ratemedia {
|
|
|
|
u_int match; /* rate + mode */
|
|
|
|
u_int media; /* if_media rate */
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
findmedia(const struct ratemedia rates[], int n, u_int match)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < n; i++)
|
|
|
|
if (rates[i].match == match)
|
|
|
|
return rates[i].media;
|
|
|
|
return IFM_AUTO;
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
* Convert IEEE80211 rate value to ifmedia subtype.
|
|
|
|
* Rate is either a legacy rate in units of 0.5Mbps
|
|
|
|
* or an MCS index.
|
2003-06-23 16:55:01 +00:00
|
|
|
*/
|
|
|
|
int
|
|
|
|
ieee80211_rate2media(struct ieee80211com *ic, int rate, enum ieee80211_phymode mode)
|
|
|
|
{
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
static const struct ratemedia rates[] = {
|
2004-01-15 08:44:27 +00:00
|
|
|
{ 2 | IFM_IEEE80211_FH, IFM_IEEE80211_FH1 },
|
|
|
|
{ 4 | IFM_IEEE80211_FH, IFM_IEEE80211_FH2 },
|
|
|
|
{ 2 | IFM_IEEE80211_11B, IFM_IEEE80211_DS1 },
|
|
|
|
{ 4 | IFM_IEEE80211_11B, IFM_IEEE80211_DS2 },
|
|
|
|
{ 11 | IFM_IEEE80211_11B, IFM_IEEE80211_DS5 },
|
|
|
|
{ 22 | IFM_IEEE80211_11B, IFM_IEEE80211_DS11 },
|
|
|
|
{ 44 | IFM_IEEE80211_11B, IFM_IEEE80211_DS22 },
|
|
|
|
{ 12 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM6 },
|
|
|
|
{ 18 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM9 },
|
|
|
|
{ 24 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM12 },
|
|
|
|
{ 36 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM18 },
|
|
|
|
{ 48 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM24 },
|
|
|
|
{ 72 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM36 },
|
|
|
|
{ 96 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM48 },
|
|
|
|
{ 108 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM54 },
|
|
|
|
{ 2 | IFM_IEEE80211_11G, IFM_IEEE80211_DS1 },
|
|
|
|
{ 4 | IFM_IEEE80211_11G, IFM_IEEE80211_DS2 },
|
|
|
|
{ 11 | IFM_IEEE80211_11G, IFM_IEEE80211_DS5 },
|
|
|
|
{ 22 | IFM_IEEE80211_11G, IFM_IEEE80211_DS11 },
|
|
|
|
{ 12 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM6 },
|
|
|
|
{ 18 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM9 },
|
|
|
|
{ 24 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM12 },
|
|
|
|
{ 36 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM18 },
|
|
|
|
{ 48 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM24 },
|
|
|
|
{ 72 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM36 },
|
|
|
|
{ 96 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM48 },
|
|
|
|
{ 108 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM54 },
|
2006-12-27 18:46:18 +00:00
|
|
|
{ 6 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM3 },
|
|
|
|
{ 9 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM4 },
|
|
|
|
{ 54 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM27 },
|
2003-06-23 16:55:01 +00:00
|
|
|
/* NB: OFDM72 doesn't realy exist so we don't handle it */
|
|
|
|
};
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
static const struct ratemedia htrates[] = {
|
|
|
|
{ 0, IFM_IEEE80211_MCS },
|
|
|
|
{ 1, IFM_IEEE80211_MCS },
|
|
|
|
{ 2, IFM_IEEE80211_MCS },
|
|
|
|
{ 3, IFM_IEEE80211_MCS },
|
|
|
|
{ 4, IFM_IEEE80211_MCS },
|
|
|
|
{ 5, IFM_IEEE80211_MCS },
|
|
|
|
{ 6, IFM_IEEE80211_MCS },
|
|
|
|
{ 7, IFM_IEEE80211_MCS },
|
|
|
|
{ 8, IFM_IEEE80211_MCS },
|
|
|
|
{ 9, IFM_IEEE80211_MCS },
|
|
|
|
{ 10, IFM_IEEE80211_MCS },
|
|
|
|
{ 11, IFM_IEEE80211_MCS },
|
|
|
|
{ 12, IFM_IEEE80211_MCS },
|
|
|
|
{ 13, IFM_IEEE80211_MCS },
|
|
|
|
{ 14, IFM_IEEE80211_MCS },
|
|
|
|
{ 15, IFM_IEEE80211_MCS },
|
2011-03-10 18:17:24 +00:00
|
|
|
{ 16, IFM_IEEE80211_MCS },
|
|
|
|
{ 17, IFM_IEEE80211_MCS },
|
|
|
|
{ 18, IFM_IEEE80211_MCS },
|
|
|
|
{ 19, IFM_IEEE80211_MCS },
|
|
|
|
{ 20, IFM_IEEE80211_MCS },
|
|
|
|
{ 21, IFM_IEEE80211_MCS },
|
|
|
|
{ 22, IFM_IEEE80211_MCS },
|
|
|
|
{ 23, IFM_IEEE80211_MCS },
|
|
|
|
{ 24, IFM_IEEE80211_MCS },
|
|
|
|
{ 25, IFM_IEEE80211_MCS },
|
|
|
|
{ 26, IFM_IEEE80211_MCS },
|
|
|
|
{ 27, IFM_IEEE80211_MCS },
|
|
|
|
{ 28, IFM_IEEE80211_MCS },
|
|
|
|
{ 29, IFM_IEEE80211_MCS },
|
|
|
|
{ 30, IFM_IEEE80211_MCS },
|
|
|
|
{ 31, IFM_IEEE80211_MCS },
|
|
|
|
{ 32, IFM_IEEE80211_MCS },
|
|
|
|
{ 33, IFM_IEEE80211_MCS },
|
|
|
|
{ 34, IFM_IEEE80211_MCS },
|
|
|
|
{ 35, IFM_IEEE80211_MCS },
|
|
|
|
{ 36, IFM_IEEE80211_MCS },
|
|
|
|
{ 37, IFM_IEEE80211_MCS },
|
|
|
|
{ 38, IFM_IEEE80211_MCS },
|
|
|
|
{ 39, IFM_IEEE80211_MCS },
|
|
|
|
{ 40, IFM_IEEE80211_MCS },
|
|
|
|
{ 41, IFM_IEEE80211_MCS },
|
|
|
|
{ 42, IFM_IEEE80211_MCS },
|
|
|
|
{ 43, IFM_IEEE80211_MCS },
|
|
|
|
{ 44, IFM_IEEE80211_MCS },
|
|
|
|
{ 45, IFM_IEEE80211_MCS },
|
|
|
|
{ 46, IFM_IEEE80211_MCS },
|
|
|
|
{ 47, IFM_IEEE80211_MCS },
|
|
|
|
{ 48, IFM_IEEE80211_MCS },
|
|
|
|
{ 49, IFM_IEEE80211_MCS },
|
|
|
|
{ 50, IFM_IEEE80211_MCS },
|
|
|
|
{ 51, IFM_IEEE80211_MCS },
|
|
|
|
{ 52, IFM_IEEE80211_MCS },
|
|
|
|
{ 53, IFM_IEEE80211_MCS },
|
|
|
|
{ 54, IFM_IEEE80211_MCS },
|
|
|
|
{ 55, IFM_IEEE80211_MCS },
|
|
|
|
{ 56, IFM_IEEE80211_MCS },
|
|
|
|
{ 57, IFM_IEEE80211_MCS },
|
|
|
|
{ 58, IFM_IEEE80211_MCS },
|
|
|
|
{ 59, IFM_IEEE80211_MCS },
|
|
|
|
{ 60, IFM_IEEE80211_MCS },
|
|
|
|
{ 61, IFM_IEEE80211_MCS },
|
|
|
|
{ 62, IFM_IEEE80211_MCS },
|
|
|
|
{ 63, IFM_IEEE80211_MCS },
|
|
|
|
{ 64, IFM_IEEE80211_MCS },
|
|
|
|
{ 65, IFM_IEEE80211_MCS },
|
|
|
|
{ 66, IFM_IEEE80211_MCS },
|
|
|
|
{ 67, IFM_IEEE80211_MCS },
|
|
|
|
{ 68, IFM_IEEE80211_MCS },
|
|
|
|
{ 69, IFM_IEEE80211_MCS },
|
|
|
|
{ 70, IFM_IEEE80211_MCS },
|
|
|
|
{ 71, IFM_IEEE80211_MCS },
|
|
|
|
{ 72, IFM_IEEE80211_MCS },
|
|
|
|
{ 73, IFM_IEEE80211_MCS },
|
|
|
|
{ 74, IFM_IEEE80211_MCS },
|
|
|
|
{ 75, IFM_IEEE80211_MCS },
|
|
|
|
{ 76, IFM_IEEE80211_MCS },
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
};
|
|
|
|
int m;
|
2003-06-23 16:55:01 +00:00
|
|
|
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
/*
|
|
|
|
* Check 11n rates first for match as an MCS.
|
|
|
|
*/
|
|
|
|
if (mode == IEEE80211_MODE_11NA) {
|
2007-09-18 20:46:36 +00:00
|
|
|
if (rate & IEEE80211_RATE_MCS) {
|
|
|
|
rate &= ~IEEE80211_RATE_MCS;
|
2013-08-14 04:24:25 +00:00
|
|
|
m = findmedia(htrates, nitems(htrates), rate);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
if (m != IFM_AUTO)
|
|
|
|
return m | IFM_IEEE80211_11NA;
|
|
|
|
}
|
|
|
|
} else if (mode == IEEE80211_MODE_11NG) {
|
|
|
|
/* NB: 12 is ambiguous, it will be treated as an MCS */
|
2007-09-18 20:46:36 +00:00
|
|
|
if (rate & IEEE80211_RATE_MCS) {
|
|
|
|
rate &= ~IEEE80211_RATE_MCS;
|
2013-08-14 04:24:25 +00:00
|
|
|
m = findmedia(htrates, nitems(htrates), rate);
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
if (m != IFM_AUTO)
|
|
|
|
return m | IFM_IEEE80211_11NG;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
rate &= IEEE80211_RATE_VAL;
|
2003-06-23 16:55:01 +00:00
|
|
|
switch (mode) {
|
|
|
|
case IEEE80211_MODE_11A:
|
2009-02-19 05:21:54 +00:00
|
|
|
case IEEE80211_MODE_HALF: /* XXX good 'nuf */
|
|
|
|
case IEEE80211_MODE_QUARTER:
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
case IEEE80211_MODE_11NA:
|
2004-12-08 17:26:47 +00:00
|
|
|
case IEEE80211_MODE_TURBO_A:
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
case IEEE80211_MODE_STURBO_A:
|
2013-08-14 04:24:25 +00:00
|
|
|
return findmedia(rates, nitems(rates),
|
|
|
|
rate | IFM_IEEE80211_11A);
|
2003-06-23 16:55:01 +00:00
|
|
|
case IEEE80211_MODE_11B:
|
2013-08-14 04:24:25 +00:00
|
|
|
return findmedia(rates, nitems(rates),
|
|
|
|
rate | IFM_IEEE80211_11B);
|
2004-01-15 08:44:27 +00:00
|
|
|
case IEEE80211_MODE_FH:
|
2013-08-14 04:24:25 +00:00
|
|
|
return findmedia(rates, nitems(rates),
|
|
|
|
rate | IFM_IEEE80211_FH);
|
2003-06-23 16:55:01 +00:00
|
|
|
case IEEE80211_MODE_AUTO:
|
|
|
|
/* NB: ic may be NULL for some drivers */
|
2009-02-19 04:34:22 +00:00
|
|
|
if (ic != NULL && ic->ic_phytype == IEEE80211_T_FH)
|
2013-08-14 04:24:25 +00:00
|
|
|
return findmedia(rates, nitems(rates),
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
rate | IFM_IEEE80211_FH);
|
2003-06-23 16:55:01 +00:00
|
|
|
/* NB: hack, 11g matches both 11b+11a rates */
|
|
|
|
/* fall thru... */
|
|
|
|
case IEEE80211_MODE_11G:
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
case IEEE80211_MODE_11NG:
|
2004-12-08 17:26:47 +00:00
|
|
|
case IEEE80211_MODE_TURBO_G:
|
2013-08-14 04:24:25 +00:00
|
|
|
return findmedia(rates, nitems(rates), rate | IFM_IEEE80211_11G);
|
2003-06-23 16:55:01 +00:00
|
|
|
}
|
|
|
|
return IFM_AUTO;
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
ieee80211_media2rate(int mword)
|
|
|
|
{
|
|
|
|
static const int ieeerates[] = {
|
|
|
|
-1, /* IFM_AUTO */
|
|
|
|
0, /* IFM_MANUAL */
|
|
|
|
0, /* IFM_NONE */
|
|
|
|
2, /* IFM_IEEE80211_FH1 */
|
|
|
|
4, /* IFM_IEEE80211_FH2 */
|
|
|
|
2, /* IFM_IEEE80211_DS1 */
|
|
|
|
4, /* IFM_IEEE80211_DS2 */
|
|
|
|
11, /* IFM_IEEE80211_DS5 */
|
|
|
|
22, /* IFM_IEEE80211_DS11 */
|
|
|
|
44, /* IFM_IEEE80211_DS22 */
|
|
|
|
12, /* IFM_IEEE80211_OFDM6 */
|
|
|
|
18, /* IFM_IEEE80211_OFDM9 */
|
|
|
|
24, /* IFM_IEEE80211_OFDM12 */
|
|
|
|
36, /* IFM_IEEE80211_OFDM18 */
|
|
|
|
48, /* IFM_IEEE80211_OFDM24 */
|
|
|
|
72, /* IFM_IEEE80211_OFDM36 */
|
|
|
|
96, /* IFM_IEEE80211_OFDM48 */
|
|
|
|
108, /* IFM_IEEE80211_OFDM54 */
|
|
|
|
144, /* IFM_IEEE80211_OFDM72 */
|
2006-12-27 18:46:18 +00:00
|
|
|
0, /* IFM_IEEE80211_DS354k */
|
|
|
|
0, /* IFM_IEEE80211_DS512k */
|
|
|
|
6, /* IFM_IEEE80211_OFDM3 */
|
|
|
|
9, /* IFM_IEEE80211_OFDM4 */
|
|
|
|
54, /* IFM_IEEE80211_OFDM27 */
|
Update 802.11 wireless support:
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00
|
|
|
-1, /* IFM_IEEE80211_MCS */
|
2003-06-23 16:55:01 +00:00
|
|
|
};
|
2013-08-14 04:24:25 +00:00
|
|
|
return IFM_SUBTYPE(mword) < nitems(ieeerates) ?
|
2003-06-23 16:55:01 +00:00
|
|
|
ieeerates[IFM_SUBTYPE(mword)] : 0;
|
|
|
|
}
|
2009-07-05 18:17:37 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The following hash function is adapted from "Hash Functions" by Bob Jenkins
|
|
|
|
* ("Algorithm Alley", Dr. Dobbs Journal, September 1997).
|
|
|
|
*/
|
|
|
|
#define mix(a, b, c) \
|
|
|
|
do { \
|
|
|
|
a -= b; a -= c; a ^= (c >> 13); \
|
|
|
|
b -= c; b -= a; b ^= (a << 8); \
|
|
|
|
c -= a; c -= b; c ^= (b >> 13); \
|
|
|
|
a -= b; a -= c; a ^= (c >> 12); \
|
|
|
|
b -= c; b -= a; b ^= (a << 16); \
|
|
|
|
c -= a; c -= b; c ^= (b >> 5); \
|
|
|
|
a -= b; a -= c; a ^= (c >> 3); \
|
|
|
|
b -= c; b -= a; b ^= (a << 10); \
|
|
|
|
c -= a; c -= b; c ^= (b >> 15); \
|
|
|
|
} while (/*CONSTCOND*/0)
|
|
|
|
|
|
|
|
uint32_t
|
|
|
|
ieee80211_mac_hash(const struct ieee80211com *ic,
|
|
|
|
const uint8_t addr[IEEE80211_ADDR_LEN])
|
|
|
|
{
|
|
|
|
uint32_t a = 0x9e3779b9, b = 0x9e3779b9, c = ic->ic_hash_key;
|
|
|
|
|
|
|
|
b += addr[5] << 8;
|
|
|
|
b += addr[4];
|
|
|
|
a += addr[3] << 24;
|
|
|
|
a += addr[2] << 16;
|
|
|
|
a += addr[1] << 8;
|
|
|
|
a += addr[0];
|
|
|
|
|
|
|
|
mix(a, b, c);
|
|
|
|
|
|
|
|
return c;
|
|
|
|
}
|
|
|
|
#undef mix
|