[net80211] Initial VHT node upgrade/downgrade support and initial IE parsing.

This is the bulk of the magic to start enabling VHT channel negotiation.
It is absolutely, positively not yet even a complete VHT wave-1 implementation.

* parse IEs in scan, assoc req/resp, probe req/resp;
* break apart the channel upgrade from the HT IE parsing - do it after the
  VHT IEs are parsed;
* (dirty! sigh) add channel width decision making in ieee80211_ht.c htinfo_update_chw().
  This is the main bit where negotiated channel promotion through IEs occur.
* Shoehorn in VHT node init ,teardown, rate control, etc calls like the HT
  versions;
* Do VHT channel adjustment where appropriate

Tested:

* monitor mode, ath10k port
* STA mode, ath10k port - VHT20, VHT40, VHT80 modes

TODO:

* IBSS;
* hostap;
* (ignore mesh, wds for now);
* finish 11n state engine - channel width change, opmode notifications, SMPS, etc;
* VHT basic rate negotiation and acceptance criteria when scanning, associating, etc;
* VHT control/management frame handling (group managment and operating mode being
  the two big ones);
* Verify TX/RX VHT rate negotiation is actually working correctly.

Whilst here, add some comments about seqno allocation and locking.  To achieve
the full VHT rates I need to push seqno allocation into the drivers and
finally remove the IEEE80211_TX_LOCK() I added years ago to fix issues. :/
This commit is contained in:
Adrian Chadd 2017-01-13 07:02:04 +00:00
parent 67f4aa3878
commit 51172f62a7
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=312015
9 changed files with 671 additions and 60 deletions

View File

@ -822,10 +822,14 @@ adhoc_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0,
#if 0
if (scan.htcap != NULL && scan.htinfo != NULL &&
(vap->iv_flags_ht & IEEE80211_FHT_HT)) {
if (ieee80211_ht_updateparams(ni,
ieee80211_ht_updateparams(ni,
scan.htcap, scan.htinfo));
if (ieee80211_ht_updateparams_final(ni,
scan.htcap, scan.htinfo))
ht_state_change = 1;
}
/* XXX same for VHT? */
#endif
if (ni != NULL) {
IEEE80211_RSSI_LPF(ni->ni_avgrssi, rssi);

View File

@ -62,6 +62,7 @@ __FBSDID("$FreeBSD$");
#include <net80211/ieee80211_superg.h>
#endif
#include <net80211/ieee80211_wds.h>
#include <net80211/ieee80211_vht.h>
#define IEEE80211_RATE2MBS(r) (((r) & IEEE80211_RATE_VAL) / 2)
@ -1745,6 +1746,7 @@ hostap_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0,
struct ieee80211_frame *wh;
uint8_t *frm, *efrm, *sfrm;
uint8_t *ssid, *rates, *xrates, *wpa, *rsn, *wme, *ath, *htcap;
uint8_t *vhtcap, *vhtinfo;
int reassoc, resp;
uint8_t rate;
@ -2042,6 +2044,7 @@ hostap_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0,
if (reassoc)
frm += 6; /* ignore current AP info */
ssid = rates = xrates = wpa = rsn = wme = ath = htcap = NULL;
vhtcap = vhtinfo = NULL;
sfrm = frm;
while (efrm - frm > 1) {
IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return);
@ -2061,6 +2064,12 @@ hostap_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0,
case IEEE80211_ELEMID_HTCAP:
htcap = frm;
break;
case IEEE80211_ELEMID_VHT_CAP:
vhtcap = frm;
break;
case IEEE80211_ELEMID_VHT_OPMODE:
vhtinfo = frm;
break;
case IEEE80211_ELEMID_VENDOR:
if (iswpaoui(frm))
wpa = frm;
@ -2135,10 +2144,22 @@ hostap_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0,
vap->iv_stats.is_rx_assoc_norate++;
return;
}
/*
* Do HT rate set handling and setup HT node state.
*/
ni->ni_chan = vap->iv_bss->ni_chan;
/* VHT */
if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) {
/* XXX TODO; see below */
printf("%s: VHT TODO!\n", __func__);
ieee80211_vht_node_init(ni);
ieee80211_vht_update_cap(ni, vhtcap, vhtinfo);
} else if (ni->ni_flags & IEEE80211_NODE_VHT)
ieee80211_vht_node_cleanup(ni);
/* HT */
if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && htcap != NULL) {
rate = ieee80211_setup_htrates(ni, htcap,
IEEE80211_F_DOFMCS | IEEE80211_F_DONEGO |
@ -2153,6 +2174,12 @@ hostap_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0,
ieee80211_ht_updatehtcap(ni, htcap);
} else if (ni->ni_flags & IEEE80211_NODE_HT)
ieee80211_ht_node_cleanup(ni);
/* Finally - this will use HT/VHT info to change node channel */
if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && htcap != NULL) {
ieee80211_ht_updatehtcap_final(ni);
}
#ifdef IEEE80211_SUPPORT_SUPERG
/* Always do ff node cleanup; for A-MSDU */
ieee80211_ff_node_cleanup(ni);

View File

@ -1490,52 +1490,117 @@ ieee80211_parse_htinfo(struct ieee80211_node *ni, const uint8_t *ie)
}
/*
* Handle 11n channel switch. Use the received HT ie's to
* identify the right channel to use. If we cannot locate it
* in the channel table then fallback to legacy operation.
* Handle 11n/11ac channel switch.
*
* Use the received HT/VHT ie's to identify the right channel to use.
* If we cannot locate it in the channel table then fallback to
* legacy operation.
*
* Note that we use this information to identify the node's
* channel only; the caller is responsible for insuring any
* required channel change is done (e.g. in sta mode when
* parsing the contents of a beacon frame).
*/
static int
htinfo_update_chw(struct ieee80211_node *ni, int htflags)
htinfo_update_chw(struct ieee80211_node *ni, int htflags, int vhtflags)
{
struct ieee80211com *ic = ni->ni_ic;
struct ieee80211_channel *c;
int chanflags;
int ret = 0;
chanflags = (ni->ni_chan->ic_flags &~ IEEE80211_CHAN_HT) | htflags;
if (chanflags != ni->ni_chan->ic_flags) {
/* XXX not right for ht40- */
c = ieee80211_find_channel(ic, ni->ni_chan->ic_freq, chanflags);
if (c == NULL && (htflags & IEEE80211_CHAN_HT40)) {
/*
* No HT40 channel entry in our table; fall back
* to HT20 operation. This should not happen.
*/
c = findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT20);
/*
* First step - do HT/VHT only channel lookup based on operating mode
* flags. This involves masking out the VHT flags as well.
* Otherwise we end up doing the full channel walk each time
* we trigger this, which is expensive.
*/
chanflags = (ni->ni_chan->ic_flags &~
(IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT)) | htflags | vhtflags;
if (chanflags == ni->ni_chan->ic_flags)
goto done;
/*
* If HT /or/ VHT flags have changed then check both.
* We need to start by picking a HT channel anyway.
*/
c = NULL;
chanflags = (ni->ni_chan->ic_flags &~
(IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT)) | htflags;
/* XXX not right for ht40- */
c = ieee80211_find_channel(ic, ni->ni_chan->ic_freq, chanflags);
if (c == NULL && (htflags & IEEE80211_CHAN_HT40)) {
/*
* No HT40 channel entry in our table; fall back
* to HT20 operation. This should not happen.
*/
c = findhtchan(ic, ni->ni_chan, IEEE80211_CHAN_HT20);
#if 0
IEEE80211_NOTE(ni->ni_vap,
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
"no HT40 channel (freq %u), falling back to HT20",
ni->ni_chan->ic_freq);
IEEE80211_NOTE(ni->ni_vap,
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
"no HT40 channel (freq %u), falling back to HT20",
ni->ni_chan->ic_freq);
#endif
/* XXX stat */
}
if (c != NULL && c != ni->ni_chan) {
IEEE80211_NOTE(ni->ni_vap,
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
"switch station to HT%d channel %u/0x%x",
IEEE80211_IS_CHAN_HT40(c) ? 40 : 20,
c->ic_freq, c->ic_flags);
ni->ni_chan = c;
ret = 1;
}
/* NB: caller responsible for forcing any channel change */
/* XXX stat */
}
/* update node's tx channel width */
/* Nothing found - leave it alone; move onto VHT */
if (c == NULL)
c = ni->ni_chan;
/*
* If it's non-HT, then bail out now.
*/
if (! IEEE80211_IS_CHAN_HT(c)) {
IEEE80211_NOTE(ni->ni_vap,
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
"not HT; skipping VHT check (%u/0x%x)",
c->ic_freq, c->ic_flags);
goto done;
}
/*
* Next step - look at the current VHT flags and determine
* if we need to upgrade. Mask out the VHT and HT flags since
* the vhtflags field will already have the correct HT
* flags to use.
*/
if (IEEE80211_CONF_VHT(ic) && ni->ni_vhtcap != 0 && vhtflags != 0) {
chanflags = (c->ic_flags
&~ (IEEE80211_CHAN_HT | IEEE80211_CHAN_VHT))
| vhtflags;
IEEE80211_NOTE(ni->ni_vap,
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N,
ni,
"%s: VHT; chanwidth=0x%02x; vhtflags=0x%08x",
__func__, ni->ni_vht_chanwidth, vhtflags);
IEEE80211_NOTE(ni->ni_vap,
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N,
ni,
"%s: VHT; trying lookup for %d/0x%08x",
__func__, c->ic_freq, chanflags);
c = ieee80211_find_channel(ic, c->ic_freq, chanflags);
}
/* Finally, if it's changed */
if (c != NULL && c != ni->ni_chan) {
IEEE80211_NOTE(ni->ni_vap,
IEEE80211_MSG_ASSOC | IEEE80211_MSG_11N, ni,
"switch station to %s%d channel %u/0x%x",
IEEE80211_IS_CHAN_VHT(c) ? "VHT" : "HT",
IEEE80211_IS_CHAN_VHT80(c) ? 80 :
(IEEE80211_IS_CHAN_HT40(c) ? 40 : 20),
c->ic_freq, c->ic_flags);
ni->ni_chan = c;
ret = 1;
}
/* NB: caller responsible for forcing any channel change */
done:
/* update node's (11n) tx channel width */
ni->ni_chw = IEEE80211_IS_CHAN_HT40(ni->ni_chan)? 40 : 20;
return (ret);
}
@ -1587,15 +1652,18 @@ htcap_update_shortgi(struct ieee80211_node *ni)
/*
* Parse and update HT-related state extracted from
* the HT cap and info ie's.
*
* This is called from the STA management path and
* the ieee80211_node_join() path. It will take into
* account the IEs discovered during scanning and
* adjust things accordingly.
*/
int
void
ieee80211_ht_updateparams(struct ieee80211_node *ni,
const uint8_t *htcapie, const uint8_t *htinfoie)
{
struct ieee80211vap *vap = ni->ni_vap;
const struct ieee80211_ie_htinfo *htinfo;
int htflags;
int ret = 0;
ieee80211_parse_htcap(ni, htcapie);
if (vap->iv_htcaps & IEEE80211_HTCAP_SMPS)
@ -1607,8 +1675,115 @@ ieee80211_ht_updateparams(struct ieee80211_node *ni,
htinfo = (const struct ieee80211_ie_htinfo *) htinfoie;
htinfo_parse(ni, htinfo);
/*
* Defer the node channel change; we need to now
* update VHT parameters before we do it.
*/
if ((htinfo->hi_byte1 & IEEE80211_HTINFO_RIFSMODE_PERM) &&
(vap->iv_flags_ht & IEEE80211_FHT_RIFS))
ni->ni_flags |= IEEE80211_NODE_RIFS;
else
ni->ni_flags &= ~IEEE80211_NODE_RIFS;
}
static uint32_t
ieee80211_vht_get_vhtflags(struct ieee80211_node *ni, uint32_t htflags)
{
struct ieee80211vap *vap = ni->ni_vap;
uint32_t vhtflags = 0;
vhtflags = 0;
if (ni->ni_flags & IEEE80211_NODE_VHT && vap->iv_flags_vht & IEEE80211_FVHT_VHT) {
if ((ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_160MHZ) &&
/* XXX 2 means "160MHz and 80+80MHz", 1 means "160MHz" */
(MS(vap->iv_vhtcaps,
IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) >= 1) &&
(vap->iv_flags_vht & IEEE80211_FVHT_USEVHT160)) {
vhtflags = IEEE80211_CHAN_VHT160;
/* Mirror the HT40 flags */
if (htflags == IEEE80211_CHAN_HT40U) {
vhtflags |= IEEE80211_CHAN_HT40U;
} else if (htflags == IEEE80211_CHAN_HT40D) {
vhtflags |= IEEE80211_CHAN_HT40D;
}
} else if ((ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_80P80MHZ) &&
/* XXX 2 means "160MHz and 80+80MHz" */
(MS(vap->iv_vhtcaps,
IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) == 2) &&
(vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80P80)) {
vhtflags = IEEE80211_CHAN_VHT80_80;
/* Mirror the HT40 flags */
if (htflags == IEEE80211_CHAN_HT40U) {
vhtflags |= IEEE80211_CHAN_HT40U;
} else if (htflags == IEEE80211_CHAN_HT40D) {
vhtflags |= IEEE80211_CHAN_HT40D;
}
} else if ((ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_80MHZ) &&
(vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80)) {
vhtflags = IEEE80211_CHAN_VHT80;
/* Mirror the HT40 flags */
if (htflags == IEEE80211_CHAN_HT40U) {
vhtflags |= IEEE80211_CHAN_HT40U;
} else if (htflags == IEEE80211_CHAN_HT40D) {
vhtflags |= IEEE80211_CHAN_HT40D;
}
} else if (ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_USE_HT) {
/* Mirror the HT40 flags */
/*
* XXX TODO: if ht40 is disabled, but vht40 isn't
* disabled then this logic will get very, very sad.
* It's quite possible the only sane thing to do is
* to not have vht40 as an option, and just obey
* 'ht40' as that flag.
*/
if ((htflags == IEEE80211_CHAN_HT40U) &&
(vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)) {
vhtflags = IEEE80211_CHAN_VHT40U
| IEEE80211_CHAN_HT40U;
} else if (htflags == IEEE80211_CHAN_HT40D &&
(vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)) {
vhtflags = IEEE80211_CHAN_VHT40D
| IEEE80211_CHAN_HT40D;
} else if (htflags == IEEE80211_CHAN_HT20) {
vhtflags = IEEE80211_CHAN_VHT20
| IEEE80211_CHAN_HT20;
}
} else {
vhtflags = IEEE80211_CHAN_VHT20;
}
}
return (vhtflags);
}
/*
* Final part of updating the HT parameters.
*
* This is called from the STA management path and
* the ieee80211_node_join() path. It will take into
* account the IEs discovered during scanning and
* adjust things accordingly.
*
* This is done after a call to ieee80211_ht_updateparams()
* because it (and the upcoming VHT version of updateparams)
* needs to ensure everything is parsed before htinfo_update_chw()
* is called - which will change the channel config for the
* node for us.
*/
int
ieee80211_ht_updateparams_final(struct ieee80211_node *ni,
const uint8_t *htcapie, const uint8_t *htinfoie)
{
struct ieee80211vap *vap = ni->ni_vap;
const struct ieee80211_ie_htinfo *htinfo;
int htflags, vhtflags;
int ret = 0;
htinfo = (const struct ieee80211_ie_htinfo *) htinfoie;
htflags = (vap->iv_flags_ht & IEEE80211_FHT_HT) ?
IEEE80211_CHAN_HT20 : 0;
/* NB: honor operating mode constraint */
if ((htinfo->hi_byte1 & IEEE80211_HTINFO_TXWIDTH_2040) &&
(vap->iv_flags_ht & IEEE80211_FHT_USEHT40)) {
@ -1617,14 +1792,16 @@ ieee80211_ht_updateparams(struct ieee80211_node *ni,
else if (ni->ni_ht2ndchan == IEEE80211_HTINFO_2NDCHAN_BELOW)
htflags = IEEE80211_CHAN_HT40D;
}
if (htinfo_update_chw(ni, htflags))
ret = 1;
if ((htinfo->hi_byte1 & IEEE80211_HTINFO_RIFSMODE_PERM) &&
(vap->iv_flags_ht & IEEE80211_FHT_RIFS))
ni->ni_flags |= IEEE80211_NODE_RIFS;
else
ni->ni_flags &= ~IEEE80211_NODE_RIFS;
/*
* VHT flags - do much the same; check whether VHT is available
* and if so, what our ideal channel use would be based on our
* capabilities and the (pre-parsed) VHT info IE.
*/
vhtflags = ieee80211_vht_get_vhtflags(ni, htflags);
if (htinfo_update_chw(ni, htflags, vhtflags))
ret = 1;
return (ret);
}
@ -1632,17 +1809,31 @@ ieee80211_ht_updateparams(struct ieee80211_node *ni,
/*
* Parse and update HT-related state extracted from the HT cap ie
* for a station joining an HT BSS.
*
* This is called from the hostap path for each station.
*/
void
ieee80211_ht_updatehtcap(struct ieee80211_node *ni, const uint8_t *htcapie)
{
struct ieee80211vap *vap = ni->ni_vap;
int htflags;
ieee80211_parse_htcap(ni, htcapie);
if (vap->iv_htcaps & IEEE80211_HTCAP_SMPS)
htcap_update_mimo_ps(ni);
htcap_update_shortgi(ni);
}
/*
* Called once HT and VHT capabilities are parsed in hostap mode -
* this will adjust the channel configuration of the given node
* based on the configuration and capabilities.
*/
void
ieee80211_ht_updatehtcap_final(struct ieee80211_node *ni)
{
struct ieee80211vap *vap = ni->ni_vap;
int htflags;
int vhtflags;
/* NB: honor operating mode constraint */
/* XXX 40 MHz intolerant */
@ -1655,7 +1846,14 @@ ieee80211_ht_updatehtcap(struct ieee80211_node *ni, const uint8_t *htcapie)
else if (IEEE80211_IS_CHAN_HT40D(vap->iv_bss->ni_chan))
htflags = IEEE80211_CHAN_HT40D;
}
(void) htinfo_update_chw(ni, htflags);
/*
* VHT flags - do much the same; check whether VHT is available
* and if so, what our ideal channel use would be based on our
* capabilities and the (pre-parsed) VHT info IE.
*/
vhtflags = ieee80211_vht_get_vhtflags(ni, htflags);
(void) htinfo_update_chw(ni, htflags, vhtflags);
}
/*
@ -2135,6 +2333,7 @@ ht_recv_action_ht_txchwidth(struct ieee80211_node *ni,
"%s: HT txchwidth, width %d%s",
__func__, chw, ni->ni_chw != chw ? "*" : "");
if (chw != ni->ni_chw) {
/* XXX does this need to change the ht40 station count? */
ni->ni_chw = chw;
/* XXX notify on change */
}
@ -2229,6 +2428,10 @@ ieee80211_ampdu_request(struct ieee80211_node *ni,
dialogtoken = (tokens+1) % 63; /* XXX */
tid = tap->txa_tid;
/*
* XXX TODO: This is racy with any other parallel TX going on. :(
*/
tap->txa_start = ni->ni_txseqs[tid];
args[0] = dialogtoken;

View File

@ -201,9 +201,12 @@ void ieee80211_htprot_update(struct ieee80211com *, int protmode);
void ieee80211_ht_timeout(struct ieee80211com *);
void ieee80211_parse_htcap(struct ieee80211_node *, const uint8_t *);
void ieee80211_parse_htinfo(struct ieee80211_node *, const uint8_t *);
int ieee80211_ht_updateparams(struct ieee80211_node *, const uint8_t *,
void ieee80211_ht_updateparams(struct ieee80211_node *, const uint8_t *,
const uint8_t *);
int ieee80211_ht_updateparams_final(struct ieee80211_node *,
const uint8_t *, const uint8_t *);
void ieee80211_ht_updatehtcap(struct ieee80211_node *, const uint8_t *);
void ieee80211_ht_updatehtcap_final(struct ieee80211_node *);
int ieee80211_ampdu_request(struct ieee80211_node *,
struct ieee80211_tx_ampdu *);
void ieee80211_ampdu_stop(struct ieee80211_node *,

View File

@ -494,6 +494,8 @@ ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m,
scan->status = 0;
/*
* beacon/probe response frame format
*
* XXX Update from 802.11-2012 - eg where HT is
* [8] time stamp
* [2] beacon interval
* [2] capability information
@ -508,6 +510,8 @@ ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m,
* [tlv] WPA or RSN
* [tlv] HT capabilities
* [tlv] HT information
* [tlv] VHT capabilities
* [tlv] VHT information
* [tlv] Atheros capabilities
* [tlv] Mesh ID
* [tlv] Mesh Configuration
@ -585,6 +589,12 @@ ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m,
case IEEE80211_ELEMID_HTCAP:
scan->htcap = frm;
break;
case IEEE80211_ELEMID_VHT_CAP:
scan->vhtcap = frm;
break;
case IEEE80211_ELEMID_VHT_OPMODE:
scan->vhtopmode = frm;
break;
case IEEE80211_ELEMID_RSN:
scan->rsn = frm;
break;
@ -718,6 +728,19 @@ ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m,
sizeof(struct ieee80211_ie_htinfo)-2,
scan->htinfo = NULL);
}
/* Process VHT IEs */
if (scan->vhtcap != NULL) {
IEEE80211_VERIFY_LENGTH(scan->vhtcap[1],
sizeof(struct ieee80211_ie_vhtcap) - 2,
scan->vhtcap = NULL);
}
if (scan->vhtopmode != NULL) {
IEEE80211_VERIFY_LENGTH(scan->vhtopmode[1],
sizeof(struct ieee80211_ie_vht_operation) - 2,
scan->vhtopmode = NULL);
}
return scan->status;
}
@ -838,6 +861,9 @@ ieee80211_parse_action(struct ieee80211_node *ni, struct mbuf *m)
}
break;
#endif
case IEEE80211_ACTION_CAT_VHT:
printf("%s: TODO: VHT handling!\n", __func__);
break;
}
return 0;
}

View File

@ -53,6 +53,7 @@ __FBSDID("$FreeBSD$");
#include <net80211/ieee80211_wds.h>
#include <net80211/ieee80211_mesh.h>
#include <net80211/ieee80211_ratectl.h>
#include <net80211/ieee80211_vht.h>
#include <net/bpf.h>
@ -412,7 +413,11 @@ ieee80211_create_ibss(struct ieee80211vap* vap, struct ieee80211_channel *chan)
/* XXX TODO: other bits and pieces - eg fast-frames? */
/* If we're an 11n channel then initialise the 11n bits */
if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) {
if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) {
/* XXX what else? */
ieee80211_ht_node_init(ni);
ieee80211_vht_node_init(ni);
} else if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) {
/* XXX what else? */
ieee80211_ht_node_init(ni);
}
@ -707,10 +712,43 @@ gethtadjustflags(struct ieee80211com *ic)
return flags;
}
/*
* Calculate VHT channel promotion flags for all vaps.
* This assumes ni_chan have been setup for each vap.
*/
static int
getvhtadjustflags(struct ieee80211com *ic)
{
struct ieee80211vap *vap;
int flags;
flags = 0;
/* XXX locking */
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
if (vap->iv_state < IEEE80211_S_RUN)
continue;
switch (vap->iv_opmode) {
case IEEE80211_M_WDS:
case IEEE80211_M_STA:
case IEEE80211_M_AHDEMO:
case IEEE80211_M_HOSTAP:
case IEEE80211_M_IBSS:
case IEEE80211_M_MBSS:
flags |= ieee80211_vhtchanflags(vap->iv_bss->ni_chan);
break;
default:
break;
}
}
return flags;
}
/*
* Check if the current channel needs to change based on whether
* any vap's are using HT20/HT40. This is used to sync the state
* of ic_curchan after a channel width change on a running vap.
*
* Same applies for VHT.
*/
void
ieee80211_sync_curchan(struct ieee80211com *ic)
@ -718,6 +756,8 @@ ieee80211_sync_curchan(struct ieee80211com *ic)
struct ieee80211_channel *c;
c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, gethtadjustflags(ic));
c = ieee80211_vht_adjust_channel(ic, c, getvhtadjustflags(ic));
if (c != ic->ic_curchan) {
ic->ic_curchan = c;
ic->ic_curmode = ieee80211_chan2mode(ic->ic_curchan);
@ -743,10 +783,23 @@ ieee80211_setupcurchan(struct ieee80211com *ic, struct ieee80211_channel *c)
* set of running vap's. This assumes we are called
* after ni_chan is setup for each vap.
*/
/* XXX VHT? */
/* NB: this assumes IEEE80211_FHT_USEHT40 > IEEE80211_FHT_HT */
if (flags > ieee80211_htchanflags(c))
c = ieee80211_ht_adjust_channel(ic, c, flags);
}
/*
* VHT promotion - this will at least promote to VHT20/40
* based on what HT has done; it may further promote the
* channel to VHT80 or above.
*/
if (ic->ic_vhtcaps != 0) {
int flags = getvhtadjustflags(ic);
if (flags > ieee80211_vhtchanflags(c))
c = ieee80211_vht_adjust_channel(ic, c, flags);
}
ic->ic_bsschan = ic->ic_curchan = c;
ic->ic_curmode = ieee80211_chan2mode(ic->ic_curchan);
ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
@ -849,6 +902,7 @@ ieee80211_sta_join(struct ieee80211vap *vap, struct ieee80211_channel *chan,
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_node *ni;
int do_ht = 0;
ni = ieee80211_alloc_node(&ic->ic_sta, vap, se->se_macaddr);
if (ni == NULL) {
@ -896,9 +950,13 @@ ieee80211_sta_join(struct ieee80211vap *vap, struct ieee80211_channel *chan,
if (ni->ni_ies.tdma_ie != NULL)
ieee80211_parse_tdma(ni, ni->ni_ies.tdma_ie);
#endif
if (ni->ni_ies.vhtcap_ie != NULL)
ieee80211_parse_vhtcap(ni, ni->ni_ies.vhtcap_ie);
if (ni->ni_ies.vhtopmode_ie != NULL)
ieee80211_parse_vhtopmode(ni, ni->ni_ies.vhtopmode_ie);
/* XXX parse VHT IEs */
/* XXX parse BSSLOAD IE */
/* XXX parse TXPWRENV IE */
/* XXX parse APCHANREP IE */
}
@ -926,10 +984,43 @@ ieee80211_sta_join(struct ieee80211vap *vap, struct ieee80211_channel *chan,
ieee80211_ht_updateparams(ni,
ni->ni_ies.htcap_ie,
ni->ni_ies.htinfo_ie);
do_ht = 1;
}
/*
* Setup VHT state for this node if it's available.
* Same as the above.
*
* For now, don't allow 2GHz VHT operation.
*/
if (ni->ni_ies.vhtopmode_ie != NULL &&
ni->ni_ies.vhtcap_ie != NULL &&
vap->iv_flags_vht & IEEE80211_FVHT_VHT) {
if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) {
printf("%s: BSS %6D: 2GHz channel, VHT info; ignoring\n",
__func__,
ni->ni_macaddr,
":");
} else {
ieee80211_vht_node_init(ni);
ieee80211_vht_updateparams(ni,
ni->ni_ies.vhtcap_ie,
ni->ni_ies.vhtopmode_ie);
ieee80211_setup_vht_rates(ni, ni->ni_ies.vhtcap_ie,
ni->ni_ies.vhtopmode_ie);
do_ht = 1;
}
}
/* Finally do the node channel change */
if (do_ht) {
ieee80211_ht_updateparams_final(ni, ni->ni_ies.htcap_ie,
ni->ni_ies.htinfo_ie);
ieee80211_setup_htrates(ni, ni->ni_ies.htcap_ie,
IEEE80211_F_JOIN | IEEE80211_F_DOBRS);
ieee80211_setup_basic_htrates(ni, ni->ni_ies.htinfo_ie);
}
/* XXX else check for ath FF? */
/* XXX QoS? Difficult given that WME config is specific to a master */
@ -1102,8 +1193,10 @@ node_cleanup(struct ieee80211_node *ni)
"power save mode off, %u sta's in ps mode", vap->iv_ps_sta);
}
/*
* Cleanup any HT-related state.
* Cleanup any VHT and HT-related state.
*/
if (ni->ni_flags & IEEE80211_NODE_VHT)
ieee80211_vht_node_cleanup(ni);
if (ni->ni_flags & IEEE80211_NODE_HT)
ieee80211_ht_node_cleanup(ni);
#ifdef IEEE80211_SUPPORT_SUPERG
@ -1423,6 +1516,7 @@ ieee80211_node_create_wds(struct ieee80211vap *vap,
if (vap->iv_flags & IEEE80211_F_FF)
ni->ni_flags |= IEEE80211_NODE_FF;
#endif
/* XXX VHT */
if ((ic->ic_htcaps & IEEE80211_HTC_HT) &&
(vap->iv_flags_ht & IEEE80211_FHT_HT)) {
/*
@ -1431,6 +1525,9 @@ ieee80211_node_create_wds(struct ieee80211vap *vap,
* ni_chan will be adjusted to an HT channel.
*/
ieee80211_ht_wds_init(ni);
if (vap->iv_flags_vht & IEEE80211_FVHT_VHT) {
printf("%s: TODO: vht_wds_init\n", __func__);
}
} else {
struct ieee80211_channel *c = ni->ni_chan;
/*
@ -1638,7 +1735,7 @@ ieee80211_init_neighbor(struct ieee80211_node *ni,
const struct ieee80211_frame *wh,
const struct ieee80211_scanparams *sp)
{
int do_ht_setup = 0;
int do_ht_setup = 0, do_vht_setup = 0;
ni->ni_esslen = sp->ssid[1];
memcpy(ni->ni_essid, sp->ssid + 2, sp->ssid[1]);
@ -1670,11 +1767,23 @@ ieee80211_init_neighbor(struct ieee80211_node *ni,
if (ni->ni_ies.htinfo_ie != NULL)
ieee80211_parse_htinfo(ni, ni->ni_ies.htinfo_ie);
if (ni->ni_ies.vhtcap_ie != NULL)
ieee80211_parse_vhtcap(ni, ni->ni_ies.vhtcap_ie);
if (ni->ni_ies.vhtopmode_ie != NULL)
ieee80211_parse_vhtopmode(ni, ni->ni_ies.vhtopmode_ie);
if ((ni->ni_ies.htcap_ie != NULL) &&
(ni->ni_ies.htinfo_ie != NULL) &&
(ni->ni_vap->iv_flags_ht & IEEE80211_FHT_HT)) {
do_ht_setup = 1;
}
if ((ni->ni_ies.vhtcap_ie != NULL) &&
(ni->ni_ies.vhtopmode_ie != NULL) &&
(ni->ni_vap->iv_flags_vht & IEEE80211_FVHT_VHT)) {
do_vht_setup = 1;
}
}
/* NB: must be after ni_chan is setup */
@ -1692,15 +1801,40 @@ ieee80211_init_neighbor(struct ieee80211_node *ni,
ieee80211_ht_updateparams(ni,
ni->ni_ies.htcap_ie,
ni->ni_ies.htinfo_ie);
if (do_vht_setup) {
if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) {
printf("%s: BSS %6D: 2GHz channel, VHT info; ignoring\n",
__func__,
ni->ni_macaddr,
":");
} else {
ieee80211_vht_node_init(ni);
ieee80211_vht_updateparams(ni,
ni->ni_ies.vhtcap_ie,
ni->ni_ies.vhtopmode_ie);
ieee80211_setup_vht_rates(ni,
ni->ni_ies.vhtcap_ie,
ni->ni_ies.vhtopmode_ie);
}
}
/*
* Finally do the channel upgrade/change based
* on the HT/VHT configuration.
*/
ieee80211_ht_updateparams_final(ni, ni->ni_ies.htcap_ie,
ni->ni_ies.htinfo_ie);
ieee80211_setup_htrates(ni,
ni->ni_ies.htcap_ie,
IEEE80211_F_JOIN | IEEE80211_F_DOBRS);
ieee80211_setup_basic_htrates(ni,
ni->ni_ies.htinfo_ie);
ieee80211_node_setuptxparms(ni);
ieee80211_ratectl_node_init(ni);
/* Reassociate; we're now 11n */
/* Reassociate; we're now 11n/11ac */
/*
* XXX TODO: this is the wrong thing to do -
* we're calling it with isnew=1 so the ath(4)
@ -2365,6 +2499,7 @@ ieee80211_node_timeout(void *arg)
IEEE80211_LOCK(ic);
ieee80211_erp_timeout(ic);
ieee80211_ht_timeout(ic);
ieee80211_vht_timeout(ic);
IEEE80211_UNLOCK(ic);
}
callout_reset(&ic->ic_inact, IEEE80211_INACT_WAIT*hz,
@ -2462,8 +2597,12 @@ ieee80211_dump_node(struct ieee80211_node_table *nt, struct ieee80211_node *ni)
printf("\thtcap %x htparam %x htctlchan %u ht2ndchan %u\n",
ni->ni_htcap, ni->ni_htparam,
ni->ni_htctlchan, ni->ni_ht2ndchan);
printf("\thtopmode %x htstbc %x chw %u\n",
printf("\thtopmode %x htstbc %x htchw %u\n",
ni->ni_htopmode, ni->ni_htstbc, ni->ni_chw);
printf("\tvhtcap %x freq1 %d freq2 %d vhtbasicmcs %x\n",
ni->ni_vhtcap, (int) ni->ni_vht_chan1, (int) ni->ni_vht_chan2,
(int) ni->ni_vht_basicmcs);
/* XXX VHT state */
}
void
@ -2594,6 +2733,8 @@ ieee80211_node_join(struct ieee80211_node *ni, int resp)
if (IEEE80211_IS_CHAN_HT(ic->ic_bsschan))
ieee80211_ht_node_join(ni);
if (IEEE80211_IS_CHAN_VHT(ic->ic_bsschan))
ieee80211_vht_node_join(ni);
if (IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan) &&
IEEE80211_IS_CHAN_FULL(ic->ic_bsschan))
ieee80211_node_join_11g(ni);
@ -2603,6 +2744,9 @@ ieee80211_node_join(struct ieee80211_node *ni, int resp)
} else
newassoc = 0;
/*
* XXX VHT - should log VHT channel width, etc
*/
IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_DEBUG, ni,
"station associated at aid %d: %s preamble, %s slot time%s%s%s%s%s%s%s%s",
IEEE80211_NODE_AID(ni),
@ -2610,6 +2754,7 @@ ieee80211_node_join(struct ieee80211_node *ni, int resp)
ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long",
ic->ic_flags & IEEE80211_F_USEPROT ? ", protection" : "",
ni->ni_flags & IEEE80211_NODE_QOS ? ", QoS" : "",
/* XXX update for VHT string */
ni->ni_flags & IEEE80211_NODE_HT ?
(ni->ni_chw == 40 ? ", HT40" : ", HT20") : "",
ni->ni_flags & IEEE80211_NODE_AMPDU ? " (+AMPDU)" : "",
@ -2774,6 +2919,8 @@ ieee80211_node_leave(struct ieee80211_node *ni)
vap->iv_sta_assoc--;
ic->ic_sta_assoc--;
if (IEEE80211_IS_CHAN_VHT(ic->ic_bsschan))
ieee80211_vht_node_leave(ni);
if (IEEE80211_IS_CHAN_HT(ic->ic_bsschan))
ieee80211_ht_node_leave(ni);
if (IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan) &&

View File

@ -58,6 +58,7 @@ __FBSDID("$FreeBSD$");
#endif
#include <net80211/ieee80211_wds.h>
#include <net80211/ieee80211_mesh.h>
#include <net80211/ieee80211_vht.h>
#if defined(INET) || defined(INET6)
#include <netinet/in.h>
@ -764,6 +765,16 @@ ieee80211_send_setup(
}
*(uint16_t *)&wh->i_dur[0] = 0;
/*
* XXX TODO: this is what the TX lock is for.
* Here we're incrementing sequence numbers, and they
* need to be in lock-step with what the driver is doing
* both in TX ordering and crypto encap (IV increment.)
*
* If the driver does seqno itself, then we can skip
* assigning sequence numbers here, and we can avoid
* requiring the TX lock.
*/
tap = &ni->ni_tx_ampdu[tid];
if (tid != IEEE80211_NONQOS_TID && IEEE80211_AMPDU_RUNNING(tap))
m->m_flags |= M_AMPDU_MPDU;
@ -1542,6 +1553,11 @@ ieee80211_encap(struct ieee80211vap *vap, struct ieee80211_node *ni,
if (is_amsdu)
qos[0] |= IEEE80211_QOS_AMSDU;
/*
* XXX TODO TX lock is needed for atomic updates of sequence
* numbers. If the driver does it, then don't do it here;
* and we don't need the TX lock held.
*/
if ((m->m_flags & M_AMPDU_MPDU) == 0) {
/*
* NB: don't assign a sequence # to potential
@ -1561,6 +1577,11 @@ ieee80211_encap(struct ieee80211vap *vap, struct ieee80211_node *ni,
M_SEQNO_SET(m, seqno);
}
} else {
/*
* XXX TODO TX lock is needed for atomic updates of sequence
* numbers. If the driver does it, then don't do it here;
* and we don't need the TX lock held.
*/
seqno = ni->ni_txseqs[IEEE80211_NONQOS_TID]++;
*(uint16_t *)wh->i_seq =
htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT);
@ -2065,6 +2086,7 @@ ieee80211_add_qos(uint8_t *frm, const struct ieee80211_node *ni)
* Send a probe request frame with the specified ssid
* and any optional information element data.
*/
/* XXX VHT? */
int
ieee80211_send_probereq(struct ieee80211_node *ni,
const uint8_t sa[IEEE80211_ADDR_LEN],
@ -2111,6 +2133,7 @@ ieee80211_send_probereq(struct ieee80211_node *ni,
* [tlv] RSN (optional)
* [tlv] extended supported rates
* [tlv] HT cap (optional)
* [tlv] VHT cap (optional)
* [tlv] WPA (optional)
* [tlv] user-specified ie's
*/
@ -2119,7 +2142,8 @@ ieee80211_send_probereq(struct ieee80211_node *ni,
2 + IEEE80211_NWID_LEN
+ 2 + IEEE80211_RATE_SIZE
+ sizeof(struct ieee80211_ie_htcap)
+ sizeof(struct ieee80211_ie_htinfo)
+ sizeof(struct ieee80211_ie_vhtcap)
+ sizeof(struct ieee80211_ie_htinfo) /* XXX not needed? */
+ sizeof(struct ieee80211_ie_wpa)
+ 2 + (IEEE80211_RATE_MAXSIZE - IEEE80211_RATE_SIZE)
+ sizeof(struct ieee80211_ie_wpa)
@ -2159,6 +2183,21 @@ ieee80211_send_probereq(struct ieee80211_node *ni,
frm = ieee80211_add_htcap_ch(frm, vap, c);
}
/*
* XXX TODO: need to figure out what/how to update the
* VHT channel.
*/
#if 0
(vap->iv_flags_vht & IEEE80211_FVHT_VHT) {
struct ieee80211_channel *c;
c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan,
vap->iv_flags_ht);
c = ieee80211_vht_adjust_channel(ic, c, vap->iv_flags_vht);
frm = ieee80211_add_vhtcap_ch(frm, vap, c);
}
#endif
frm = ieee80211_add_wpa(frm, vap);
if (vap->iv_appie_probereq != NULL)
frm = add_appie(frm, vap->iv_appie_probereq);
@ -2357,6 +2396,7 @@ ieee80211_send_mgmt(struct ieee80211_node *ni, int type, int arg)
case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
case IEEE80211_FC0_SUBTYPE_REASSOC_REQ:
/* XXX VHT? */
/*
* asreq frame format
* [2] capability information
@ -2368,6 +2408,7 @@ ieee80211_send_mgmt(struct ieee80211_node *ni, int type, int arg)
* [4] power capability (optional)
* [28] supported channels (optional)
* [tlv] HT capabilities
* [tlv] VHT capabilities
* [tlv] WME (optional)
* [tlv] Vendor OUI HT capabilities (optional)
* [tlv] Atheros capabilities (if negotiated)
@ -2385,6 +2426,7 @@ ieee80211_send_mgmt(struct ieee80211_node *ni, int type, int arg)
+ 2 + 26
+ sizeof(struct ieee80211_wme_info)
+ sizeof(struct ieee80211_ie_htcap)
+ sizeof(struct ieee80211_ie_vhtcap)
+ 4 + sizeof(struct ieee80211_ie_htcap)
#ifdef IEEE80211_SUPPORT_SUPERG
+ sizeof(struct ieee80211_ath_ie)
@ -2449,6 +2491,14 @@ ieee80211_send_mgmt(struct ieee80211_node *ni, int type, int arg)
ni->ni_ies.htcap_ie[0] == IEEE80211_ELEMID_HTCAP) {
frm = ieee80211_add_htcap(frm, ni);
}
if ((vap->iv_flags_vht & IEEE80211_FVHT_VHT) &&
IEEE80211_IS_CHAN_VHT(ni->ni_chan) &&
ni->ni_ies.vhtcap_ie != NULL &&
ni->ni_ies.vhtcap_ie[0] == IEEE80211_ELEMID_VHT_CAP) {
frm = ieee80211_add_vhtcap(frm, ni);
}
frm = ieee80211_add_wpa(frm, vap);
if ((ic->ic_flags & IEEE80211_F_WME) &&
ni->ni_ies.wme_ie != NULL)
@ -2492,6 +2542,8 @@ ieee80211_send_mgmt(struct ieee80211_node *ni, int type, int arg)
* [tlv] extended supported rates
* [tlv] HT capabilities (standard, if STA enabled)
* [tlv] HT information (standard, if STA enabled)
* [tlv] VHT capabilities (standard, if STA enabled)
* [tlv] VHT information (standard, if STA enabled)
* [tlv] WME (if configured and STA enabled)
* [tlv] HT capabilities (vendor OUI, if STA enabled)
* [tlv] HT information (vendor OUI, if STA enabled)
@ -2507,6 +2559,8 @@ ieee80211_send_mgmt(struct ieee80211_node *ni, int type, int arg)
+ 2 + (IEEE80211_RATE_MAXSIZE - IEEE80211_RATE_SIZE)
+ sizeof(struct ieee80211_ie_htcap) + 4
+ sizeof(struct ieee80211_ie_htinfo) + 4
+ sizeof(struct ieee80211_ie_vhtcap)
+ sizeof(struct ieee80211_ie_vht_operation)
+ sizeof(struct ieee80211_wme_param)
#ifdef IEEE80211_SUPPORT_SUPERG
+ sizeof(struct ieee80211_ath_ie)
@ -2545,6 +2599,10 @@ ieee80211_send_mgmt(struct ieee80211_node *ni, int type, int arg)
frm = ieee80211_add_htcap_vendor(frm, ni);
frm = ieee80211_add_htinfo_vendor(frm, ni);
}
if (ni->ni_flags & IEEE80211_NODE_VHT) {
frm = ieee80211_add_vhtcap(frm, ni);
frm = ieee80211_add_vhtinfo(frm, ni);
}
#ifdef IEEE80211_SUPPORT_SUPERG
if (IEEE80211_ATH_CAP(vap, ni, IEEE80211_F_ATHEROS))
frm = ieee80211_add_ath(frm,
@ -2600,6 +2658,7 @@ ieee80211_send_mgmt(struct ieee80211_node *ni, int type, int arg)
* Space is left to prepend and 802.11 header at the
* front but it's left to the caller to fill in.
*/
/* XXX VHT? */
struct mbuf *
ieee80211_alloc_proberesp(struct ieee80211_node *bss, int legacy)
{
@ -2934,6 +2993,7 @@ ieee80211_tx_mgt_cb(struct ieee80211_node *ni, void *arg, int status)
}
}
/* XXX VHT? */
static void
ieee80211_beacon_construct(struct mbuf *m, uint8_t *frm,
struct ieee80211_node *ni)
@ -2946,6 +3006,10 @@ ieee80211_beacon_construct(struct mbuf *m, uint8_t *frm,
/*
* beacon frame format
*
* TODO: update to 802.11-2012; a lot of stuff has changed;
* vendor extensions should be at the end, etc.
*
* [8] time stamp
* [2] beacon interval
* [2] cabability information
@ -2957,11 +3021,34 @@ ieee80211_beacon_construct(struct mbuf *m, uint8_t *frm,
* [tlv] country (optional)
* [3] power control (optional)
* [5] channel switch announcement (CSA) (optional)
* XXX TODO: Quiet
* XXX TODO: IBSS DFS
* XXX TODO: TPC report
* [tlv] extended rate phy (ERP)
* [tlv] extended supported rates
* [tlv] RSN parameters
* XXX TODO: BSSLOAD
* (XXX EDCA parameter set, QoS capability?)
* XXX TODO: AP channel report
*
* [tlv] HT capabilities
* [tlv] HT information
* XXX TODO: 20/40 BSS coexistence
* Mesh:
* XXX TODO: Meshid
* XXX TODO: mesh config
* XXX TODO: mesh awake window
* XXX TODO: beacon timing (mesh, etc)
* XXX TODO: MCCAOP Advertisement Overview
* XXX TODO: MCCAOP Advertisement
* XXX TODO: Mesh channel switch parameters
* VHT:
* XXX TODO: VHT capabilities
* XXX TODO: VHT operation
* XXX TODO: VHT transmit power envelope
* XXX TODO: channel switch wrapper element
* XXX TODO: extended BSS load element
*
* XXX Vendor-specific OIDs (e.g. Atheros)
* [tlv] WPA parameters
* [tlv] WME parameters
@ -3055,6 +3142,16 @@ ieee80211_beacon_construct(struct mbuf *m, uint8_t *frm,
bo->bo_htinfo = frm;
frm = ieee80211_add_htinfo(frm, ni);
}
if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) {
frm = ieee80211_add_vhtcap(frm, ni);
bo->bo_vhtinfo = frm;
frm = ieee80211_add_vhtinfo(frm, ni);
/* Transmit power envelope */
/* Channel switch wrapper element */
/* Extended bss load element */
}
frm = ieee80211_add_wpa(frm, vap);
if (vap->iv_flags & IEEE80211_F_WME) {
bo->bo_wme = frm;
@ -3065,6 +3162,7 @@ ieee80211_beacon_construct(struct mbuf *m, uint8_t *frm,
frm = ieee80211_add_htcap_vendor(frm, ni);
frm = ieee80211_add_htinfo_vendor(frm, ni);
}
#ifdef IEEE80211_SUPPORT_SUPERG
if (vap->iv_flags & IEEE80211_F_ATHEROS) {
bo->bo_ath = frm;
@ -3082,6 +3180,8 @@ ieee80211_beacon_construct(struct mbuf *m, uint8_t *frm,
bo->bo_appie_len = vap->iv_appie_beacon->ie_len;
frm = add_appie(frm, vap->iv_appie_beacon);
}
/* XXX TODO: move meshid/meshconf up to before vendor extensions? */
#ifdef IEEE80211_SUPPORT_MESH
if (vap->iv_opmode == IEEE80211_M_MBSS) {
frm = ieee80211_add_meshid(frm, vap);
@ -3097,6 +3197,7 @@ ieee80211_beacon_construct(struct mbuf *m, uint8_t *frm,
/*
* Allocate a beacon frame and fillin the appropriate bits.
*/
/* XXX VHT? */
struct mbuf *
ieee80211_beacon_alloc(struct ieee80211_node *ni)
{
@ -3110,6 +3211,9 @@ ieee80211_beacon_alloc(struct ieee80211_node *ni)
/*
* beacon frame format
*
* Note: This needs updating for 802.11-2012.
*
* [8] time stamp
* [2] beacon interval
* [2] cabability information
@ -3126,6 +3230,8 @@ ieee80211_beacon_alloc(struct ieee80211_node *ni)
* [tlv] RSN parameters
* [tlv] HT capabilities
* [tlv] HT information
* [tlv] VHT capabilities
* [tlv] VHT operation
* [tlv] Vendor OUI HT capabilities (optional)
* [tlv] Vendor OUI HT information (optional)
* XXX Vendor-specific OIDs (e.g. Atheros)
@ -3138,6 +3244,7 @@ ieee80211_beacon_alloc(struct ieee80211_node *ni)
* NB: we allocate the max space required for the TIM bitmap.
* XXX how big is this?
*/
/* XXX VHT? */
pktlen = 8 /* time stamp */
+ sizeof(uint16_t) /* beacon interval */
+ sizeof(uint16_t) /* capabilities */
@ -3157,6 +3264,8 @@ ieee80211_beacon_alloc(struct ieee80211_node *ni)
/* XXX conditional? */
+ 4+2*sizeof(struct ieee80211_ie_htcap)/* HT caps */
+ 4+2*sizeof(struct ieee80211_ie_htinfo)/* HT info */
+ sizeof(struct ieee80211_ie_vhtcap)/* VHT caps */
+ sizeof(struct ieee80211_ie_vht_operation)/* VHT info */
+ (vap->iv_caps & IEEE80211_C_WME ? /* WME */
sizeof(struct ieee80211_wme_param) : 0)
#ifdef IEEE80211_SUPPORT_SUPERG
@ -3242,6 +3351,15 @@ ieee80211_beacon_update(struct ieee80211_node *ni, struct mbuf *m, int mcast)
}
wh = mtod(m, struct ieee80211_frame *);
/*
* XXX TODO Strictly speaking this should be incremented with the TX
* lock held so as to serialise access to the non-qos TID sequence
* number space.
*
* If the driver identifies it does its own TX seqno management then
* we can skip this (and still not do the TX seqno.)
*/
seqno = ni->ni_txseqs[IEEE80211_NONQOS_TID]++;
*(uint16_t *)&wh->i_seq[0] =
htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT);
@ -3347,6 +3465,10 @@ ieee80211_beacon_update(struct ieee80211_node *ni, struct mbuf *m, int mcast)
timoff = 0;
timlen = 1;
}
/*
* TODO: validate this!
*/
if (timlen != bo->bo_tim_len) {
/* copy up/down trailer */
int adjust = tie->tim_bitmap+timlen
@ -3357,6 +3479,7 @@ ieee80211_beacon_update(struct ieee80211_node *ni, struct mbuf *m, int mcast)
bo->bo_tim_trailer += adjust;
bo->bo_erp += adjust;
bo->bo_htinfo += adjust;
bo->bo_vhtinfo += adjust;
#ifdef IEEE80211_SUPPORT_SUPERG
bo->bo_ath += adjust;
#endif
@ -3411,6 +3534,7 @@ ieee80211_beacon_update(struct ieee80211_node *ni, struct mbuf *m, int mcast)
memmove(&csa[1], csa, bo->bo_csa_trailer_len);
bo->bo_erp += sizeof(*csa);
bo->bo_htinfo += sizeof(*csa);
bo->bo_vhtinfo += sizeof(*csa);
bo->bo_wme += sizeof(*csa);
#ifdef IEEE80211_SUPPORT_SUPERG
bo->bo_ath += sizeof(*csa);

View File

@ -55,6 +55,7 @@ __FBSDID("$FreeBSD$");
#include <net80211/ieee80211_mesh.h>
#endif
#include <net80211/ieee80211_ratectl.h>
#include <net80211/ieee80211_vht.h>
#include <net/bpf.h>
@ -325,14 +326,33 @@ sta_add(struct ieee80211_scan_state *ss,
}
} else
ise->se_chan = curchan;
/* VHT demotion */
if (IEEE80211_IS_CHAN_VHT(ise->se_chan) && sp->vhtcap == NULL) {
IEEE80211_DPRINTF(vap, IEEE80211_MSG_11N,
"%s: demoting VHT->HT %d/0x%08x\n",
__func__, ise->se_chan->ic_freq, ise->se_chan->ic_flags);
/* Demote legacy networks to a non-VHT channel. */
c = ieee80211_find_channel(ic, ise->se_chan->ic_freq,
ise->se_chan->ic_flags & ~IEEE80211_CHAN_VHT);
KASSERT(c != NULL,
("no non-VHT channel %u", ise->se_chan->ic_ieee));
ise->se_chan = c;
}
/* HT demotion */
if (IEEE80211_IS_CHAN_HT(ise->se_chan) && sp->htcap == NULL) {
/* Demote legacy networks to a non-HT channel. */
IEEE80211_DPRINTF(vap, IEEE80211_MSG_11N,
"%s: demoting HT->legacy %d/0x%08x\n",
__func__, ise->se_chan->ic_freq, ise->se_chan->ic_flags);
c = ieee80211_find_channel(ic, ise->se_chan->ic_freq,
ise->se_chan->ic_flags & ~IEEE80211_CHAN_HT);
KASSERT(c != NULL,
("no legacy channel %u", ise->se_chan->ic_ieee));
ise->se_chan = c;
}
ise->se_fhdwell = sp->fhdwell;
ise->se_fhindex = sp->fhindex;
ise->se_erp = sp->erp;
@ -531,10 +551,11 @@ sweepchannels(struct ieee80211_scan_state *ss, struct ieee80211vap *vap,
/*
* Ignore dynamic turbo channels; we scan them
* in normal mode (i.e. not boosted). Likewise
* for HT channels, they get scanned using
* for HT/VHT channels, they get scanned using
* legacy rates.
*/
if (IEEE80211_IS_CHAN_DTURBO(c) || IEEE80211_IS_CHAN_HT(c))
if (IEEE80211_IS_CHAN_DTURBO(c) || IEEE80211_IS_CHAN_HT(c) ||
IEEE80211_IS_CHAN_VHT(c))
continue;
/*
@ -819,6 +840,9 @@ maxrate(const struct ieee80211_scan_entry *se)
* that we assume compatibility/usability has already been checked
* so we don't need to (e.g. validate whether privacy is supported).
* Used to select the best scan candidate for association in a BSS.
*
* TODO: should we take 11n, 11ac into account when selecting the
* best? Right now it just compares frequency band and RSSI.
*/
static int
sta_compare(const struct sta_entry *a, const struct sta_entry *b)
@ -1626,6 +1650,8 @@ adhoc_pick_bss(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
*/
chan = ieee80211_ht_adjust_channel(ic,
chan, vap->iv_flags_ht);
chan = ieee80211_vht_adjust_channel(ic,
chan, vap->iv_flags_vht);
ieee80211_create_ibss(vap, chan);
return 1;
}
@ -1657,6 +1683,8 @@ adhoc_pick_bss(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
*/
chan = ieee80211_ht_adjust_channel(ic,
chan, vap->iv_flags_ht);
chan = ieee80211_vht_adjust_channel(ic,
chan, vap->iv_flags_vht);
if (!ieee80211_sta_join(vap, chan, &selbs->base))
goto notfound;
return 1; /* terminate scan */
@ -1776,7 +1804,7 @@ static int
ap_end(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_channel *bestchan;
struct ieee80211_channel *bestchan, *chan;
KASSERT(vap->iv_opmode == IEEE80211_M_HOSTAP,
("wrong opmode %u", vap->iv_opmode));
@ -1808,8 +1836,10 @@ ap_end(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
ss->ss_flags &= ~IEEE80211_SCAN_NOPICK;
return 1;
}
ieee80211_create_ibss(vap,
ieee80211_ht_adjust_channel(ic, bestchan, vap->iv_flags_ht));
chan = ieee80211_ht_adjust_channel(ic, bestchan, vap->iv_flags_ht);
chan = ieee80211_vht_adjust_channel(ic, chan, vap->iv_flags_vht);
ieee80211_create_ibss(vap, chan);
return 1;
}
@ -1881,10 +1911,14 @@ mesh_pick_bss(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
IEEE80211_IS_CHAN_RADAR(vap->iv_des_chan)) {
struct ieee80211com *ic = vap->iv_ic;
/* XXX VHT */
chan = adhoc_pick_channel(ss, 0);
if (chan != NULL)
if (chan != NULL) {
chan = ieee80211_ht_adjust_channel(ic,
chan, vap->iv_flags_ht);
chan = ieee80211_vht_adjust_channel(ic,
chan, vap->iv_flags_vht);
}
} else
chan = vap->iv_des_chan;
if (chan != NULL) {

View File

@ -64,6 +64,7 @@ __FBSDID("$FreeBSD$");
#endif
#include <net80211/ieee80211_ratectl.h>
#include <net80211/ieee80211_sta.h>
#include <net80211/ieee80211_vht.h>
#define IEEE80211_RATE2MBS(r) (((r) & IEEE80211_RATE_VAL) / 2)
@ -1330,8 +1331,9 @@ sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype,
struct ieee80211_frame *wh;
uint8_t *frm, *efrm;
uint8_t *rates, *xrates, *wme, *htcap, *htinfo;
uint8_t *vhtcap, *vhtopmode;
uint8_t rate;
int ht_state_change = 0;
int ht_state_change = 0, do_ht = 0;
wh = mtod(m0, struct ieee80211_frame *);
frm = (uint8_t *)&wh[1];
@ -1430,10 +1432,23 @@ sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype,
if (scan.htcap != NULL && scan.htinfo != NULL &&
(vap->iv_flags_ht & IEEE80211_FHT_HT)) {
/* XXX state changes? */
if (ieee80211_ht_updateparams(ni,
ieee80211_ht_updateparams(ni,
scan.htcap, scan.htinfo);
do_ht = 1;
}
if (scan.vhtcap != NULL && scan.vhtopmode != NULL &&
(vap->iv_flags_vht & IEEE80211_FVHT_VHT)) {
/* XXX state changes? */
ieee80211_vht_updateparams(ni,
scan.vhtcap, scan.vhtopmode);
do_ht = 1;
}
if (do_ht) {
if (ieee80211_ht_updateparams_final(ni,
scan.htcap, scan.htinfo))
ht_state_change = 1;
}
if (scan.quiet)
ic->ic_set_quiet(ni, scan.quiet);
@ -1660,6 +1675,7 @@ sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype,
frm += 2;
rates = xrates = wme = htcap = htinfo = NULL;
vhtcap = vhtopmode = NULL;
while (efrm - frm > 1) {
IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return);
switch (*frm) {
@ -1693,6 +1709,12 @@ sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype,
}
/* XXX Atheros OUI support */
break;
case IEEE80211_ELEMID_VHT_CAP:
vhtcap = frm;
break;
case IEEE80211_ELEMID_VHT_OPMODE:
vhtopmode = frm;
break;
}
frm += frm[1] + 2;
}
@ -1737,9 +1759,30 @@ sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, int subtype,
(vap->iv_flags_ht & IEEE80211_FHT_HT)) {
ieee80211_ht_node_init(ni);
ieee80211_ht_updateparams(ni, htcap, htinfo);
if ((vhtcap != NULL) && (vhtopmode != NULL) &
(vap->iv_flags_vht & IEEE80211_FVHT_VHT)) {
/*
* Log if we get a VHT assoc/reassoc response.
* We aren't ready for 2GHz VHT support.
*/
if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) {
printf("%s: peer %6D: VHT on 2GHz, ignoring\n",
__func__,
ni->ni_macaddr,
":");
} else {
ieee80211_vht_node_init(ni);
ieee80211_vht_updateparams(ni, vhtcap, vhtopmode);
ieee80211_setup_vht_rates(ni, vhtcap, vhtopmode);
}
}
ieee80211_ht_updateparams_final(ni, htcap, htinfo);
ieee80211_setup_htrates(ni, htcap,
IEEE80211_F_JOIN | IEEE80211_F_DOBRS);
ieee80211_setup_basic_htrates(ni, htinfo);
ieee80211_node_setuptxparms(ni);
ieee80211_ratectl_node_init(ni);
}