/*
* Handle a media change request.
*/
int
ieee80211_media_change(struct ifnet *ifp)
{
struct ieee80211com *ic;
struct ifmedia_entry *ime;
enum ieee80211_opmode newopmode;
enum ieee80211_phymode newphymode;
int i, j, newrate, error = 0;
ic = ieee80211_find_instance(ifp);
if (!ic) {
if_printf(ifp, "%s: no 802.11 instance!\n", __func__);
return EINVAL;
}
ime = ic->ic_media.ifm_cur;
/*
* First, identify the phy mode.
*/
switch (IFM_MODE(ime->ifm_media)) {
case IFM_IEEE80211_11A:
newphymode = IEEE80211_MODE_11A;
break;
case IFM_IEEE80211_11B:
newphymode = IEEE80211_MODE_11B;
break;
case IFM_IEEE80211_11G:
newphymode = IEEE80211_MODE_11G;
break;
case IFM_IEEE80211_FH:
newphymode = IEEE80211_MODE_FH;
break;
case IFM_AUTO:
newphymode = IEEE80211_MODE_AUTO;
break;
default:
return EINVAL;
}
/*
* Turbo mode is an ``option''.
* XXX does not apply to AUTO
*/
if (ime->ifm_media & IFM_IEEE80211_TURBO) {
if (newphymode == IEEE80211_MODE_11A)
newphymode = IEEE80211_MODE_TURBO_A;
else if (newphymode == IEEE80211_MODE_11G)
newphymode = IEEE80211_MODE_TURBO_G;
else
return EINVAL;
}
/*
* Validate requested mode is available.
*/
if ((ic->ic_modecaps & (1<<newphymode)) == 0)
return EINVAL;
/*
* Next, the fixed/variable rate.
*/
i = -1;
if (IFM_SUBTYPE(ime->ifm_media) != IFM_AUTO) {
/*
* Convert media subtype to rate.
*/
newrate = ieee80211_media2rate(ime->ifm_media);
if (newrate == 0)
return EINVAL;
/*
* Check the rate table for the specified/current phy.
*/
if (newphymode == IEEE80211_MODE_AUTO) {
/*
* In autoselect mode search for the rate.
*/
for (j = IEEE80211_MODE_11A;
j < IEEE80211_MODE_MAX; j++) {
if ((ic->ic_modecaps & (1<<j)) == 0)
continue;
i = findrate(ic, j, newrate);
if (i != -1) {
/* lock mode too */
newphymode = j;
break;
}
}
} else {
i = findrate(ic, newphymode, newrate);
}
if (i == -1) /* mode/rate mismatch */
return EINVAL;
}
/* NB: defer rate setting to later */
/*
* Deduce new operating mode but don't install it just yet.
*/
if ((ime->ifm_media & (IFM_IEEE80211_ADHOC|IFM_FLAG0)) ==
(IFM_IEEE80211_ADHOC|IFM_FLAG0))
newopmode = IEEE80211_M_AHDEMO;
else if (ime->ifm_media & IFM_IEEE80211_HOSTAP)
newopmode = IEEE80211_M_HOSTAP;
else if (ime->ifm_media & IFM_IEEE80211_ADHOC)
newopmode = IEEE80211_M_IBSS;
else if (ime->ifm_media & IFM_IEEE80211_MONITOR)
newopmode = IEEE80211_M_MONITOR;
else
newopmode = IEEE80211_M_STA;
#ifndef IEEE80211_NO_HOSTAP
/*
* Autoselect doesn't make sense when operating as an AP.
* If no phy mode has been selected, pick one and lock it
* down so rate tables can be used in forming beacon frames
* and the like.
*/
if (newopmode == IEEE80211_M_HOSTAP &&
newphymode == IEEE80211_MODE_AUTO) {
for (j = IEEE80211_MODE_11A; j < IEEE80211_MODE_MAX; j++)
if (ic->ic_modecaps & (1<<j)) {
newphymode = j;
break;
}
}
#endif /* !IEEE80211_NO_HOSTAP */
/*
* Handle phy mode change.
*/
if (ic->ic_curmode != newphymode) { /* change phy mode */
error = ieee80211_setmode(ic, newphymode);
if (error != 0)
return error;
error = ENETRESET;
}
/*
* Committed to changes, install the rate setting.
*/
if (ic->ic_fixed_rate != i) {
ic->ic_fixed_rate = i; /* set fixed tx rate */
error = ENETRESET;
}
/*
* Handle operating mode change.
*/
if (ic->ic_opmode != newopmode) {
ic->ic_opmode = newopmode;
switch (newopmode) {
case IEEE80211_M_AHDEMO:
case IEEE80211_M_HOSTAP:
case IEEE80211_M_STA:
case IEEE80211_M_MONITOR:
ic->ic_flags &= ~IEEE80211_F_IBSSON;
break;
case IEEE80211_M_IBSS:
ic->ic_flags |= IEEE80211_F_IBSSON;
break;
}
/*
* Yech, slot time may change depending on the
* operating mode so reset it to be sure everything
* is setup appropriately.
*/
ieee80211_reset_erp(ic);
ieee80211_wme_initparams(ic); /* after opmode change */
error = ENETRESET;
}
#ifdef notdef
if (error == 0)
ifp->if_baudrate = ifmedia_baudrate(ime->ifm_media);
#endif
return error;
}
/*
* 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)
{
#define N(a) (sizeof(a) / sizeof(a[0]))
static const u_int chanflags[] = {
0, /* IEEE80211_MODE_AUTO */
IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
IEEE80211_CHAN_T, /* IEEE80211_MODE_TURBO_A */
IEEE80211_CHAN_108G, /* IEEE80211_MODE_TURBO_G */
};
struct ieee80211_channel *c;
u_int modeflags;
int i;
/* validate new mode */
if ((ic->ic_modecaps & (1<<mode)) == 0) {
IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY,
"%s: mode %u not supported (caps 0x%x)\n",
__func__, mode, ic->ic_modecaps);
return EINVAL;
}
/*
* Verify at least one channel is present in the available
* channel list before committing to the new mode.
*/
IASSERT(mode < N(chanflags), ("Unexpected mode %u", mode));
modeflags = chanflags[mode];
for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
c = &ic->ic_channels[i];
if (c->ic_flags == 0)
continue;
if (mode == IEEE80211_MODE_AUTO) {
/* ignore turbo channels for autoselect */
if ((c->ic_flags & IEEE80211_CHAN_TURBO) == 0)
break;
} else {
if ((c->ic_flags & modeflags) == modeflags)
break;
}
}
if (i > IEEE80211_CHAN_MAX) {
IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY,
"%s: no channels found for mode %u\n", __func__, mode);
return EINVAL;
}
/*
* Calculate the active channel set.
*/
memset(ic->ic_chan_active, 0, sizeof(ic->ic_chan_active));
for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
c = &ic->ic_channels[i];
if (c->ic_flags == 0)
continue;
if (mode == IEEE80211_MODE_AUTO) {
/* take anything but pure turbo channels */
if ((c->ic_flags & IEEE80211_CHAN_TURBO) == 0)
setbit(ic->ic_chan_active, i);
} else {
if ((c->ic_flags & modeflags) == modeflags)
setbit(ic->ic_chan_active, i);
}
}
/*
* If no current/default channel is setup or the current
* channel is wrong for the mode then pick the first
* available channel from the active list. This is likely
* not the right one.
*/
if (ic->ic_ibss_chan == NULL ||
isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) {
for (i = 0; i <= IEEE80211_CHAN_MAX; i++)
if (isset(ic->ic_chan_active, i)) {
ic->ic_ibss_chan = &ic->ic_channels[i];
break;
}
IASSERT(ic->ic_ibss_chan != NULL &&
isset(ic->ic_chan_active,
ieee80211_chan2ieee(ic, ic->ic_ibss_chan)),
("Bad IBSS channel %u",
ieee80211_chan2ieee(ic, ic->ic_ibss_chan)));
}
/*
* If the desired channel is set but no longer valid then reset it.
*/
if (ic->ic_des_chan != IEEE80211_CHAN_ANYC &&
isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, ic->ic_des_chan)))
ic->ic_des_chan = IEEE80211_CHAN_ANYC;
/*
* Do mode-specific rate setup.
*/
if (mode == IEEE80211_MODE_11G) {
/*
* Use a mixed 11b/11g rate set.
*/
ieee80211_set11gbasicrates(&ic->ic_sup_rates[mode],
IEEE80211_MODE_11G);
} else if (mode == IEEE80211_MODE_11B) {
/*
* Force pure 11b rate set.
*/
ieee80211_set11gbasicrates(&ic->ic_sup_rates[mode],
IEEE80211_MODE_11B);
}
/*
* Setup an initial rate set according to the
* current/default channel selected above. This
* will be changed when scanning but must exist
* now so driver have a consistent state of ic_ibss_chan.
*/
if (ic->ic_bss) /* NB: can be called before lateattach */
ic->ic_bss->ni_rates = ic->ic_sup_rates[mode];
ic->ic_curmode = mode;
ieee80211_reset_erp(ic); /* reset ERP state */
ieee80211_wme_initparams(ic); /* reset WME stat */
return 0;
#undef N
}
/*
* Complete a scan of potential channels.
*/
void
ieee80211_end_scan(struct ifnet *ifp)
{
struct ieee80211com *ic = (void *)ifp;
struct ieee80211_node *ni, *nextbs, *selbs;
if (ifp->if_flags & IFF_DEBUG)
printf("%s: end %s scan\n", ifp->if_xname,
(ic->ic_flags & IEEE80211_F_ASCAN) ?
"active" : "passive");
if (ic->ic_scan_count)
ic->ic_flags &= ~IEEE80211_F_ASCAN;
ni = RB_MIN(ieee80211_tree, &ic->ic_tree);
#ifndef IEEE80211_STA_ONLY
if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
/* XXX off stack? */
u_char occupied[howmany(IEEE80211_CHAN_MAX, NBBY)];
int i, fail;
/*
* The passive scan to look for existing AP's completed,
* select a channel to camp on. Identify the channels
* that already have one or more AP's and try to locate
* an unnoccupied one. If that fails, pick a random
* channel from the active set.
*/
memset(occupied, 0, sizeof(occupied));
RB_FOREACH(ni, ieee80211_tree, &ic->ic_tree)
setbit(occupied, ieee80211_chan2ieee(ic, ni->ni_chan));
for (i = 0; i < IEEE80211_CHAN_MAX; i++)
if (isset(ic->ic_chan_active, i) && isclr(occupied, i))
break;
if (i == IEEE80211_CHAN_MAX) {
fail = arc4random() & 3; /* random 0-3 */
for (i = 0; i < IEEE80211_CHAN_MAX; i++)
if (isset(ic->ic_chan_active, i) && fail-- == 0)
break;
}
ieee80211_create_ibss(ic, &ic->ic_channels[i]);
goto wakeup;
}
#endif
if (ni == NULL) {
DPRINTF(("no scan candidate\n"));
notfound:
#ifndef IEEE80211_STA_ONLY
if (ic->ic_opmode == IEEE80211_M_IBSS &&
(ic->ic_flags & IEEE80211_F_IBSSON) &&
ic->ic_des_esslen != 0) {
ieee80211_create_ibss(ic, ic->ic_ibss_chan);
goto wakeup;
}
#endif
/*
* Scan the next mode if nothing has been found. This
* is necessary if the device supports different
* incompatible modes in the same channel range, like
* like 11b and "pure" 11G mode. This will loop
* forever except for user-initiated scans.
*/
if (ieee80211_next_mode(ifp) == IEEE80211_MODE_AUTO) {
if (ic->ic_scan_lock & IEEE80211_SCAN_REQUEST &&
ic->ic_scan_lock & IEEE80211_SCAN_RESUME) {
ic->ic_scan_lock = IEEE80211_SCAN_LOCKED;
/* Return from an user-initiated scan */
wakeup(&ic->ic_scan_lock);
} else if (ic->ic_scan_lock & IEEE80211_SCAN_REQUEST)
goto wakeup;
ic->ic_scan_count++;
}
/*
* Reset the list of channels to scan and start again.
*/
ieee80211_next_scan(ifp);
return;
}
selbs = NULL;
for (; ni != NULL; ni = nextbs) {
nextbs = RB_NEXT(ieee80211_tree, &ic->ic_tree, ni);
if (ni->ni_fails) {
/*
* The configuration of the access points may change
* during my scan. So delete the entry for the AP
* and retry to associate if there is another beacon.
*/
if (ni->ni_fails++ > 2)
ieee80211_free_node(ic, ni);
continue;
}
if (ieee80211_match_bss(ic, ni) == 0) {
if (selbs == NULL)
selbs = ni;
else if (ni->ni_rssi > selbs->ni_rssi)
selbs = ni;
}
}
if (selbs == NULL)
goto notfound;
(*ic->ic_node_copy)(ic, ic->ic_bss, selbs);
ni = ic->ic_bss;
/*
* Set the erp state (mostly the slot time) to deal with
* the auto-select case; this should be redundant if the
* mode is locked.
*/
ic->ic_curmode = ieee80211_chan2mode(ic, ni->ni_chan);
ieee80211_reset_erp(ic);
if (ic->ic_flags & IEEE80211_F_RSNON)
ieee80211_choose_rsnparams(ic);
else if (ic->ic_flags & IEEE80211_F_WEPON)
ni->ni_rsncipher = IEEE80211_CIPHER_USEGROUP;
ieee80211_node_newstate(selbs, IEEE80211_STA_BSS);
#ifndef IEEE80211_STA_ONLY
if (ic->ic_opmode == IEEE80211_M_IBSS) {
ieee80211_fix_rate(ic, ni, IEEE80211_F_DOFRATE |
IEEE80211_F_DONEGO | IEEE80211_F_DODEL);
if (ni->ni_rates.rs_nrates == 0)
goto notfound;
ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
} else
#endif
ieee80211_new_state(ic, IEEE80211_S_AUTH, -1);
wakeup:
if (ic->ic_scan_lock & IEEE80211_SCAN_REQUEST) {
/* Return from an user-initiated scan */
wakeup(&ic->ic_scan_lock);
}
ic->ic_scan_lock = IEEE80211_SCAN_UNLOCKED;
}
static bool ieee80211_resmgr_state_multichan_idle_event(void *ctx, u_int16_t event_type, u_int16_t event_data_len, void *event_data)
{
ieee80211_resmgr_t resmgr = (ieee80211_resmgr_t)ctx;
ieee80211_resmgr_sm_event_t event = (ieee80211_resmgr_sm_event_t)event_data;
ieee80211_vap_t vap = event->vap;
ieee80211_resmgr_vap_priv_t resmgr_vap = NULL;
bool retVal = true;
struct ieee80211com *ic = resmgr->ic;
ieee80211_resmgr_oc_scheduler_operation_data_t next_scheduled_operation = {OC_SCHED_OP_NONE, NULL};
ieee80211_vap_t curr_vap, next_vap;
bool transition_vap = false;
bool transition_scan = false;
bool check_scheduled_operation = false;
if (vap) {
resmgr_vap = ieee80211vap_get_resmgr(vap);
}
switch (event_type) {
case IEEE80211_RESMGR_EVENT_VAP_START_REQUEST:
{
if (!resmgr_vap)
break;
ieee80211_resmgr_oc_sched_set_state(resmgr, OC_SCHEDULER_ON);
/* Turn scheduler on before invoking next routine */
ieee80211_resmgr_oc_sched_vap_transition(resmgr, vap,
resmgr_vap, OFF_CHAN_SCHED_VAP_START);
resmgr_vap->state = VAP_STARTING;
resmgr_vap->chan = event->chan;
DBG_PRINTK("VAP_STARTING: resmgr_vap->chan = 0x%08x\n", resmgr_vap->chan);
check_scheduled_operation = true;
break;
}
case IEEE80211_RESMGR_EVENT_VAP_STOPPED:
{
struct vap_iter_check_state_params params;
if (!resmgr_vap)
break;
/* Stop associated VAP */
resmgr_vap->state = VAP_STOPPED;
ieee80211_resmgr_oc_sched_vap_transition(resmgr, vap,
resmgr_vap, OFF_CHAN_SCHED_VAP_STOPPED);
/* Check if any other vaps exist */
OS_MEMZERO(¶ms, sizeof(struct vap_iter_check_state_params));
wlan_iterate_vap_list(ic, ieee80211_vap_iter_check_state, ¶ms);
if (!params.vaps_running && !params.vap_starting) {
ieee80211_resmgr_oc_sched_set_state(resmgr, OC_SCHEDULER_OFF);
}
else {
check_scheduled_operation = true;
}
break;
}
case IEEE80211_RESMGR_EVENT_VAP_UP:
{
struct vap_iter_unpause_params params = {0, 0};
resmgr_vap->state = VAP_ACTIVE;
ieee80211_resmgr_oc_sched_vap_transition(resmgr, vap,
resmgr_vap, OFF_CHAN_SCHED_VAP_UP);
/* Unpause VAP's on same channel */
params.chan = resmgr_vap->chan;
if (resmgr->mode == IEEE80211_RESMGR_MODE_MULTI_CHANNEL) {
wlan_iterate_vap_list(ic, ieee80211_vap_iter_unpause_request, ¶ms);
} else {
wlan_iterate_vap_list(ic, ieee80211_vap_iter_resume_request, ¶ms);
}
break;
}
case IEEE80211_RESMGR_EVENT_VAP_PAUSE_COMPLETE:
case IEEE80211_RESMGR_EVENT_VAP_PAUSE_FAIL:
case IEEE80211_RESMGR_EVENT_VAP_RESUME_COMPLETE:
case IEEE80211_RESMGR_EVENT_CHAN_SWITCH_REQUEST:
case IEEE80211_RESMGR_EVENT_CSA_COMPLETE:
case IEEE80211_RESMGR_EVENT_SCHED_BSS_REQUEST:
DBG_PRINTK("%s : [*** WARNING ***] Encountered unhandled event_type!!\n", __func__);
ASSERT(0);
break;
case IEEE80211_RESMGR_EVENT_BSSCHAN_REQUEST:
{
ieee80211_resmgr_notification notif;
/* Is Off-Channel Scheduler active? */
if (ieee80211_resmgr_oc_sched_get_state(resmgr) != OC_SCHEDULER_ON) {
/* Set home channel */
ASSERT(resmgr->scandata.chan); /* scanner should go to foreign first? */
if (resmgr->scandata.chan)
ic->ic_curchan = resmgr->scandata.chan;
ic->ic_set_channel(ic);
}
resmgr->scandata.chan = NULL;
resmgr->scandata.scan_chan = NULL;
/* Intimate request completion */
notif.type = IEEE80211_RESMGR_BSSCHAN_SWITCH_COMPLETE;
notif.req_id = IEEE80211_RESMGR_REQID;
notif.status = 0;
notif.vap = NULL;
IEEE80211_RESMGR_NOTIFICATION(resmgr, ¬if);
break;
}
case IEEE80211_RESMGR_EVENT_OFFCHAN_REQUEST:
{
ieee80211_resmgr_notification notif;
/* Store current channel as home channel */
resmgr->scandata.chan = ic->ic_curchan;
resmgr->scandata.scan_chan = event->chan;
/* Is Off-Channel Scheduler active? */
if (ieee80211_resmgr_oc_sched_get_state(resmgr) != OC_SCHEDULER_ON) {
/* Set desired channel */
ic->ic_curchan = event->chan;
ic->ic_scan_start(ic);
ic->ic_set_channel(ic);
/* Intimate request completion */
notif.type = IEEE80211_RESMGR_OFFCHAN_SWITCH_COMPLETE;
notif.req_id = IEEE80211_RESMGR_REQID;
notif.status = EOK;
notif.vap = NULL;
IEEE80211_RESMGR_NOTIFICATION(resmgr, ¬if);
}
else {
DBG_PRINTK("%s : OFFCHAN_REQ - max_dwell_time = %d\n", __func__, event->max_dwell_time);
ieee80211_resmgr_oc_sched_req_duration_usec_set(resmgr->scandata.oc_sched_req, event->max_dwell_time * 1000);
ieee80211_resmgr_oc_sched_req_start(resmgr, resmgr->scandata.oc_sched_req);
ieee80211_resmgr_off_chan_scheduler(resmgr, IEEE80211_RESMGR_EVENT_OFF_CHAN_SCHED_START_REQUEST);
}
break;
}
case IEEE80211_RESMGR_EVENT_TSF_TIMER_EXPIRED:
case IEEE80211_RESMGR_EVENT_TSF_TIMER_CHANGED:
case IEEE80211_RESMGR_EVENT_OFF_CHAN_SCHED_START_REQUEST:
case IEEE80211_RESMGR_EVENT_OFF_CHAN_SCHED_STOP_REQUEST:
ieee80211_resmgr_off_chan_scheduler(resmgr, event_type);
check_scheduled_operation = true;
break;
default:
retVal = false;
break;
}
if (ieee80211_resmgr_oc_sched_get_state(resmgr) == OC_SCHEDULER_ON) {
if (check_scheduled_operation == true) {
/* Fetch next scheduled operation */
ieee80211_resmgr_oc_sched_get_scheduled_operation(resmgr, &next_scheduled_operation);
next_vap = next_scheduled_operation.vap;
/* Take care of post operation cleanup */
switch (next_scheduled_operation.operation_type) {
case OC_SCHED_OP_VAP:
if (resmgr->current_scheduled_operation.operation_type == OC_SCHED_OP_VAP) {
curr_vap = resmgr->current_scheduled_operation.vap;
resmgr_vap = ieee80211vap_get_resmgr(curr_vap);
if (next_vap != curr_vap) {
DBG_PRINTK("OP_VAP: vap_force_pause curr_vap = 0x%08x\n", curr_vap);
/* Force pause the currently active VAP */
curr_vap->iv_ic->ic_vap_pause_control(curr_vap->iv_ic,curr_vap,true);
//ieee80211_sm_transition_to(resmgr->hsm_handle, IEEE80211_RESMGR_STATE_PAUSING);
resmgr_vap->state = VAP_PAUSED;
transition_vap = true;
}
}
else {
transition_vap = true;
}
break;
case OC_SCHED_OP_SCAN:
transition_scan = true;
/* Falling through INTENTIONALLY */
case OC_SCHED_OP_SLEEP:
if (resmgr->current_scheduled_operation.operation_type == OC_SCHED_OP_VAP) {
curr_vap = resmgr->current_scheduled_operation.vap;
resmgr_vap = ieee80211vap_get_resmgr(curr_vap);
DBG_PRINTK("OP_SCAN: vap_force_pause curr_vap = 0x%08x\n", curr_vap);
/* Force pause the current VAP */
curr_vap->iv_ic->ic_vap_pause_control(curr_vap->iv_ic,curr_vap,true);
//ieee80211_sm_transition_to(resmgr->hsm_handle, IEEE80211_RESMGR_STATE_PAUSING);
resmgr_vap->state = VAP_PAUSED;
}
break;
case OC_SCHED_OP_NOP:
case OC_SCHED_OP_NONE:
default:
break;
}
/* Initiate the next operation */
if (transition_scan == true) {
DBG_PRINTK("%s : transition_scan == true\n", __func__);
ieee80211_resmgr_notification notif;
/* Set desired channel */
ic->ic_curchan = resmgr->scandata.scan_chan;
ic->ic_scan_start(ic);
ic->ic_set_channel(ic);
/* Intimate request completion */
notif.type = IEEE80211_RESMGR_OFFCHAN_SWITCH_COMPLETE;
notif.req_id = IEEE80211_RESMGR_REQID;
notif.status = EOK;
notif.vap = NULL;
IEEE80211_RESMGR_NOTIFICATION(resmgr, ¬if);
}
if (transition_vap == true) {
if (next_vap != NULL) {
DBG_PRINTK("%s : transition_vap == true\n", __func__);
resmgr_vap = ieee80211vap_get_resmgr(next_vap);
switch (resmgr_vap->state) {
case VAP_STARTING:
{
ieee80211_resmgr_notification notif;
struct vap_iter_check_state_params params;
/* Check if this is the first VAP starting */
OS_MEMZERO(¶ms, sizeof(struct vap_iter_check_state_params));
wlan_iterate_vap_list(ic, ieee80211_vap_iter_check_state, ¶ms);
/* Set the requested channel */
if (resmgr_vap && (!params.vaps_active || !IS_CHAN_EQUAL(ic->ic_curchan, resmgr_vap->chan))) {
ic->ic_curchan = resmgr_vap->chan;
ic->ic_bsschan = ic->ic_curchan;
ic->ic_set_channel(ic);
ieee80211_reset_erp(ic, ic->ic_curmode, next_vap->iv_opmode);
ieee80211_wme_initparams(next_vap);
}
/* Set passed channel as BSS channel */
ic->ic_bsschan = ic->ic_curchan;
/* Intimate start completion to VAP module */
notif.type = IEEE80211_RESMGR_VAP_START_COMPLETE;
notif.req_id = IEEE80211_RESMGR_REQID;
notif.status = 0;
notif.vap = next_vap;
IEEE80211_RESMGR_NOTIFICATION(resmgr, ¬if);
}
break;
case VAP_PAUSED:
DBG_PRINTK("%s : vap_force_unpause; next_vap\n", __func__);
next_vap->iv_ic->ic_vap_pause_control(next_vap->iv_ic, next_vap, false);
resmgr_vap->state = VAP_ACTIVE;
break;
default:
if (ic->ic_curchan != resmgr_vap->chan) {
/* Set home channel */
DBG_PRINTK("%s : resmgr_vap->chan = 0x%08x\n", __func__, resmgr_vap->chan);
ic->ic_curchan = resmgr_vap->chan;
ic->ic_set_channel(ic);
}
break;
}
}
}
}
}
return retVal;
}
static int
ol_vdev_wmi_event_handler(ol_scn_t scn, u_int8_t *data, u_int16_t datalen, void *context)
{
ieee80211_resmgr_t resmgr = (ieee80211_resmgr_t )context;
wmi_vdev_start_response_event *wmi_vdev_start_resp_ev =
(wmi_vdev_start_response_event *)data;
wlan_if_t vaphandle;
struct ieee80211com *ic = resmgr->ic;
struct ieee80211_channel *chan = NULL;
struct ieee80211_node *ni;
u_int8_t numvaps, actidx = 0;
struct ol_ath_vap_net80211 *avn;
bool do_notify = true;
vaphandle = ol_ath_vap_get(scn, wmi_vdev_start_resp_ev->vdev_id);
if (NULL == vaphandle) {
printk("Event received for Invalid/Deleted vap handle\n");
return 0;
}
avn = OL_ATH_VAP_NET80211(vaphandle);
printk("ol_vdev_start_resp_ev for vap %d (%p)\n", wmi_vdev_start_resp_ev->vdev_id, scn->wmi_handle);
spin_lock(&vaphandle->init_lock);
switch (vaphandle->iv_opmode) {
case IEEE80211_M_MONITOR:
/* Handle same as HOSTAP */
case IEEE80211_M_HOSTAP:
/* If vap is not waiting for the WMI event from target
return here
*/
if(avn->av_ol_resmgr_wait == FALSE) {
spin_unlock(&vaphandle->init_lock);
return 0;
}
/* Resetting the ol_resmgr_wait flag*/
avn->av_ol_resmgr_wait = FALSE;
numvaps = ieee80211_vaps_active(ic);
chan = vaphandle->iv_des_chan[vaphandle->iv_des_mode];
/*
* if there is a vap already running.
* ignore the desired channel and use the
* operating channel of the other vap.
*/
/* so that cwm can do its own crap. need to untie from state */
/* vap join is called here to wake up the chip if it is in sleep state */
ieee80211_vap_join(vaphandle);
if (numvaps == 0) {
//AP_DFS: ieee80211_set_channel(ic, chan);
if (wmi_vdev_start_resp_ev->resp_type != WMI_VDEV_RESTART_RESP_EVENT) {
/* 20/40 Mhz coexistence handler */
if ((avn->av_ol_resmgr_chan != NULL) && (chan != avn->av_ol_resmgr_chan)) {
chan = avn->av_ol_resmgr_chan;
}
ic->ic_prevchan = ic->ic_curchan;
ic->ic_curchan = chan;
/*update channel history*/
actidx = ic->ic_chanidx;
ic->ic_chanhist[actidx].chanid = (ic->ic_curchan)->ic_ieee;
ic->ic_chanhist[actidx].chanjiffies = OS_GET_TIMESTAMP();
ic->ic_chanidx == (IEEE80211_CHAN_MAXHIST - 1) ? ic->ic_chanidx = 0 : ++(ic->ic_chanidx);
/* update max channel power to max regpower of current channel */
ieee80211com_set_curchanmaxpwr(ic, chan->ic_maxregpower);
ieee80211_wme_initparams(vaphandle);
}
/* ieee80211 Layer - Default Configuration */
vaphandle->iv_bsschan = ic->ic_curchan;
/* XXX reset erp state */
ieee80211_reset_erp(ic, ic->ic_curmode, vaphandle->iv_opmode);
} else {
/* ieee80211 Layer - Default Configuration */
vaphandle->iv_bsschan = ic->ic_curchan;
}
/* use the vap bsschan for dfs configure */
if ( IEEE80211_IS_CHAN_DFS(vaphandle->iv_bsschan)) {
extern void ol_if_dfs_configure(struct ieee80211com *ic);
ol_if_dfs_configure(ic);
}
break;
case IEEE80211_M_STA:
ni = vaphandle->iv_bss;
chan = ni->ni_chan;
vaphandle->iv_bsschan = chan;
ic->ic_prevchan = ic->ic_curchan;
ic->ic_curchan = chan;
/* update max channel power to max regpower of current channel */
ieee80211com_set_curchanmaxpwr(ic, chan->ic_maxregpower);
/* ieee80211 Layer - Default Configuration */
vaphandle->iv_bsschan = ic->ic_curchan;
/* XXX reset erp state */
ieee80211_reset_erp(ic, ic->ic_curmode, vaphandle->iv_opmode);
ieee80211_wme_initparams(vaphandle);
if (wmi_vdev_start_resp_ev->resp_type == WMI_VDEV_RESTART_RESP_EVENT) {
do_notify = false;
}
break;
default:
break;
}
vaphandle->init_in_progress = false;
spin_unlock(&vaphandle->init_lock);
/* Intimate start completion to VAP module */
/* if STA, bypass notification for RESTERT EVENT */
if (do_notify)
ieee80211_notify_vap_start_complete(resmgr, vaphandle, IEEE80211_RESMGR_STATUS_SUCCESS);
return 0;
}
/*
* Complete a scan of potential channels.
*/
void Voodoo80211Device::
ieee80211_end_scan(struct ieee80211com *ic)
{
struct ieee80211_node *ni, *nextbs, *selbs;
/* TODO
if (ifp->if_flags & IFF_DEBUG)
printf("%s: end %s scan\n", ifp->if_xname,
(ic->ic_flags & IEEE80211_F_ASCAN) ?
"active" : "passive");
*/
if (ic->ic_scan_count)
ic->ic_flags &= ~IEEE80211_F_ASCAN;
ni = RB_MIN(ieee80211_tree, &ic->ic_tree);
if (ni == NULL) {
DPRINTF(("no scan candidate\n"));
notfound:
/*
* Scan the next mode if nothing has been found. This
* is necessary if the device supports different
* incompatible modes in the same channel range, like
* like 11b and "pure" 11G mode. This will loop
* forever except for user-initiated scans.
*/
if (ieee80211_next_mode(ic) == IEEE80211_MODE_AUTO) {
if (ic->ic_scan_lock & IEEE80211_SCAN_REQUEST &&
ic->ic_scan_lock & IEEE80211_SCAN_RESUME) {
ic->ic_scan_lock = IEEE80211_SCAN_LOCKED;
/* Return from an user-initiated scan */
wakeupOn(&ic->ic_scan_lock);
// XXX: pvaibhav: do this here?
fInterface->postMessage(APPLE80211_M_SCAN_DONE);
} else if (ic->ic_scan_lock & IEEE80211_SCAN_REQUEST)
goto wakeup;
ic->ic_scan_count++;
}
/*
* Reset the list of channels to scan and start again.
*/
ieee80211_next_scan(ic);
return;
}
selbs = NULL;
for (; ni != NULL; ni = nextbs) {
nextbs = RB_NEXT(ieee80211_tree, &ic->ic_tree, ni);
if (ni->ni_fails) {
/*
* The configuration of the access points may change
* during my scan. So delete the entry for the AP
* and retry to associate if there is another beacon.
*/
if (ni->ni_fails++ > 2)
ieee80211_free_node(ic, ni);
continue;
}
if (ieee80211_match_bss(ic, ni) == 0) {
if (selbs == NULL)
selbs = ni;
else if (ni->ni_rssi > selbs->ni_rssi)
selbs = ni;
}
}
if (selbs == NULL)
goto notfound;
ieee80211_node_copy(ic, ic->ic_bss, selbs);
ni = ic->ic_bss;
/*
* Set the erp state (mostly the slot time) to deal with
* the auto-select case; this should be redundant if the
* mode is locked.
*/
ic->ic_curmode = ieee80211_chan2mode(ic, ni->ni_chan);
ieee80211_reset_erp(ic);
if (ic->ic_flags & IEEE80211_F_RSNON)
ieee80211_choose_rsnparams(ic);
else if (ic->ic_flags & IEEE80211_F_WEPON)
ni->ni_rsncipher = IEEE80211_CIPHER_USEGROUP;
ieee80211_node_newstate(selbs, IEEE80211_STA_BSS);
ieee80211_newstate(ic, IEEE80211_S_AUTH, -1);
wakeup:
if (ic->ic_scan_lock & IEEE80211_SCAN_REQUEST) {
/* Return from an user-initiated scan */
wakeupOn(&ic->ic_scan_lock);
// XXX: pvaibhav: do this here?
fInterface->postMessage(APPLE80211_M_SCAN_DONE);
}
ic->ic_scan_lock = IEEE80211_SCAN_UNLOCKED;
}
/*
* 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)
{
#define N(a) (sizeof(a) / sizeof(a[0]))
struct ifnet *ifp = &ic->ic_if;
static const u_int chanflags[] = {
0, /* IEEE80211_MODE_AUTO */
IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
IEEE80211_CHAN_T, /* IEEE80211_MODE_TURBO */
};
const struct ieee80211_channel *c;
u_int modeflags;
int i;
/* validate new mode */
if ((ic->ic_modecaps & (1<<mode)) == 0) {
DPRINTF(("mode %u not supported (caps 0x%x)\n",
mode, ic->ic_modecaps));
return EINVAL;
}
/*
* Verify at least one channel is present in the available
* channel list before committing to the new mode.
*/
if (mode >= N(chanflags))
panic("Unexpected mode %u", mode);
modeflags = chanflags[mode];
for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
c = &ic->ic_channels[i];
if (mode == IEEE80211_MODE_AUTO) {
/* ignore turbo channels for autoselect */
if ((c->ic_flags &~ IEEE80211_CHAN_TURBO) != 0)
break;
} else {
if ((c->ic_flags & modeflags) == modeflags)
break;
}
}
if (i > IEEE80211_CHAN_MAX) {
DPRINTF(("no channels found for mode %u\n", mode));
return EINVAL;
}
/*
* Calculate the active channel set.
*/
memset(ic->ic_chan_active, 0, sizeof(ic->ic_chan_active));
for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
c = &ic->ic_channels[i];
if (mode == IEEE80211_MODE_AUTO) {
/* take anything but pure turbo channels */
if ((c->ic_flags &~ IEEE80211_CHAN_TURBO) != 0)
setbit(ic->ic_chan_active, i);
} else {
if ((c->ic_flags & modeflags) == modeflags)
setbit(ic->ic_chan_active, i);
}
}
/*
* If no current/default channel is setup or the current
* channel is wrong for the mode then pick the first
* available channel from the active list. This is likely
* not the right one.
*/
if (ic->ic_ibss_chan == NULL || isclr(ic->ic_chan_active,
ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) {
for (i = 0; i <= IEEE80211_CHAN_MAX; i++)
if (isset(ic->ic_chan_active, i)) {
ic->ic_ibss_chan = &ic->ic_channels[i];
break;
}
if ((ic->ic_ibss_chan == NULL) || isclr(ic->ic_chan_active,
ieee80211_chan2ieee(ic, ic->ic_ibss_chan)))
panic("Bad IBSS channel %u",
ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
}
/*
* Reset the scan state for the new mode. This avoids scanning
* of invalid channels, ie. 5GHz channels in 11b mode.
*/
ieee80211_reset_scan(ifp);
ic->ic_curmode = mode;
ieee80211_reset_erp(ic); /* reset ERP state */
return 0;
#undef N
}
