enum ieee80211_phymode
ieee80211_next_mode(struct ifnet *ifp)
{
struct ieee80211com *ic = (void *)ifp;
if (IFM_MODE(ic->ic_media.ifm_cur->ifm_media) != IFM_AUTO) {
/*
* Reset the scan state and indicate a wrap around
* if we're running in a fixed, user-specified phy mode.
*/
ieee80211_reset_scan(ifp);
return (IEEE80211_MODE_AUTO);
}
/*
* Get the next supported mode
*/
for (++ic->ic_curmode;
ic->ic_curmode <= IEEE80211_MODE_TURBO;
ic->ic_curmode++) {
/* Wrap around and ignore turbo mode */
if (ic->ic_curmode >= IEEE80211_MODE_TURBO) {
ic->ic_curmode = IEEE80211_MODE_AUTO;
break;
}
if (ic->ic_modecaps & (1 << ic->ic_curmode))
break;
}
ieee80211_setmode(ic, ic->ic_curmode);
return (ic->ic_curmode);
}
/*
* Begin an active scan.
*/
void
ieee80211_begin_scan(struct ifnet *ifp)
{
struct ieee80211com *ic = (void *)ifp;
if (ic->ic_scan_lock & IEEE80211_SCAN_LOCKED)
return;
ic->ic_scan_lock |= IEEE80211_SCAN_LOCKED;
/*
* In all but hostap mode scanning starts off in
* an active mode before switching to passive.
*/
#ifndef IEEE80211_STA_ONLY
if (ic->ic_opmode != IEEE80211_M_HOSTAP)
#endif
{
ic->ic_flags |= IEEE80211_F_ASCAN;
ic->ic_stats.is_scan_active++;
}
#ifndef IEEE80211_STA_ONLY
else
ic->ic_stats.is_scan_passive++;
#endif
if (ifp->if_flags & IFF_DEBUG)
printf("%s: begin %s scan\n", ifp->if_xname,
(ic->ic_flags & IEEE80211_F_ASCAN) ?
"active" : "passive");
/*
* Flush any previously seen AP's. Note that the latter
* assumes we don't act as both an AP and a station,
* otherwise we'll potentially flush state of stations
* associated with us.
*/
ieee80211_free_allnodes(ic);
/*
* Reset the current mode. Setting the current mode will also
* reset scan state.
*/
if (IFM_MODE(ic->ic_media.ifm_cur->ifm_media) == IFM_AUTO)
ic->ic_curmode = IEEE80211_MODE_AUTO;
ieee80211_setmode(ic, ic->ic_curmode);
ic->ic_scan_count = 0;
/* Scan the next channel. */
ieee80211_next_scan(ifp);
}
/*
* Begin an active scan.
*/
void Voodoo80211Device::
ieee80211_begin_scan(struct ieee80211com *ic)
{
if (ic->ic_scan_lock & IEEE80211_SCAN_LOCKED)
return;
ic->ic_scan_lock |= IEEE80211_SCAN_LOCKED;
/*
* In all but hostap mode scanning starts off in
* an active mode before switching to passive.
*/
{
ic->ic_flags |= IEEE80211_F_ASCAN;
ic->ic_stats.is_scan_active++;
}
if (false /* ifp->debugOn */)
printf("%s: begin %s scan\n", "voodoo_wifi",
(ic->ic_flags & IEEE80211_F_ASCAN) ?
"active" : "passive");
/*
* Flush any previously seen AP's. Note that the latter
* assumes we don't act as both an AP and a station,
* otherwise we'll potentially flush state of stations
* associated with us.
*/
ieee80211_free_allnodes(ic);
/*
* Reset the current mode. Setting the current mode will also
* reset scan state.
*/
if (getCurrentMedium()->getType() & IFM_AUTO)
ic->ic_curmode = IEEE80211_MODE_AUTO;
ieee80211_setmode(ic, (enum ieee80211_phymode) ic->ic_curmode);
ic->ic_scan_count = 0;
/* Scan the next channel. */
ieee80211_next_scan(ic);
}
int wlan_reset_end(wlan_if_t vaphandle, ieee80211_reset_request *reset_req)
{
struct ieee80211com *ic = vaphandle->iv_ic;
int ret;
ret = ic->ic_reset_end(ic, reset_req->no_flush);
#if ATH_RESET_SERIAL
/* Reset some MIB variables if required */
if (reset_req->set_default_mib) {
struct ieee80211vap *vap = vaphandle;
/*
* NB: Only IEEE80211_RESET_TYPE_DOT11_INTF can reset MIB variables
*/
KASSERT(reset_req->type == IEEE80211_RESET_TYPE_DOT11_INTF, ("invalid reset request\n"));
if (reset_req->reset_mac) {
/* reset regdmn module */
ieee80211_regdmn_reset(ic);
}
if (reset_req->reset_phy) {
/* set the desired PHY mode to 11b */
vap->iv_des_mode = reset_req->phy_mode;
/* change to the default PHY mode if required */
/* set wireless mode */
ieee80211_setmode(ic, vap->iv_des_mode, vap->iv_opmode);
/* set default channel */
ASSERT(vap->iv_des_chan[vap->iv_des_mode] != IEEE80211_CHAN_ANYC);
ieee80211_set_channel(ic, vap->iv_des_chan[vap->iv_des_mode]);
vap->iv_bsschan = ic->ic_curchan;
}
}
#endif
return ret;
}
void
ieee80211_ifattach(struct ifnet *ifp)
{
struct ieee80211com *ic = (void *)ifp;
memcpy(((struct arpcom *)ifp)->ac_enaddr, ic->ic_myaddr,
ETHER_ADDR_LEN);
ether_ifattach(ifp);
ifp->if_output = ieee80211_output;
#if NBPFILTER > 0
bpfattach(&ic->ic_rawbpf, ifp, DLT_IEEE802_11,
sizeof(struct ieee80211_frame_addr4));
#endif
ieee80211_crypto_attach(ifp);
ieee80211_channel_init(ifp);
/* IEEE 802.11 defines a MTU >= 2290 */
ifp->if_capabilities |= IFCAP_VLAN_MTU;
ieee80211_setbasicrates(ic);
(void)ieee80211_setmode(ic, ic->ic_curmode);
if (ic->ic_lintval == 0)
ic->ic_lintval = 100; /* default sleep */
ic->ic_bmisstimeout = 7*ic->ic_lintval; /* default 7 beacons */
ic->ic_dtim_period = 1; /* all TIMs are DTIMs */
LIST_INSERT_HEAD(&ieee80211com_head, ic, ic_list);
ieee80211_node_attach(ifp);
ieee80211_proto_attach(ifp);
if_addgroup(ifp, "wlan");
ifp->if_priority = IF_WIRELESS_DEFAULT_PRIORITY;
}
/*
* 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)
{
#define DEFAULTRATES(m, def) do { \
if (ic->ic_sup_rates[m].rs_nrates == 0) \
ic->ic_sup_rates[m] = def; \
} while (0)
struct ieee80211_channel *c;
int i;
KASSERT(0 < ic->ic_nchans && ic->ic_nchans <= IEEE80211_CHAN_MAX,
("invalid number of channels specified: %u", ic->ic_nchans));
memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail));
memset(ic->ic_modecaps, 0, sizeof(ic->ic_modecaps));
setbit(ic->ic_modecaps, IEEE80211_MODE_AUTO);
for (i = 0; i < ic->ic_nchans; i++) {
c = &ic->ic_channels[i];
KASSERT(c->ic_flags != 0, ("channel with no flags"));
/*
* 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;
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);
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);
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);
}
/* initialize candidate channels to all available */
memcpy(ic->ic_chan_active, ic->ic_chan_avail,
sizeof(ic->ic_chan_avail));
/* sort channel table to allow lookup optimizations */
ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
/* invalidate any previous state */
ic->ic_bsschan = IEEE80211_CHAN_ANYC;
ic->ic_prevchan = NULL;
ic->ic_csa_newchan = NULL;
/* arbitrarily pick the first channel */
ic->ic_curchan = &ic->ic_channels[0];
ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
/* fillin well-known rate sets if driver has not specified */
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);
DEFAULTRATES(IEEE80211_MODE_STURBO_A, ieee80211_rateset_11a);
DEFAULTRATES(IEEE80211_MODE_HALF, ieee80211_rateset_half);
DEFAULTRATES(IEEE80211_MODE_QUARTER, ieee80211_rateset_quarter);
DEFAULTRATES(IEEE80211_MODE_11NA, ieee80211_rateset_11a);
DEFAULTRATES(IEEE80211_MODE_11NG, ieee80211_rateset_11g);
/*
* Set auto mode to reset active channel state and any desired channel.
*/
(void) ieee80211_setmode(ic, IEEE80211_MODE_AUTO);
#undef DEFAULTRATES
}
/*
* 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;
}
void
ieee80211_ifattach(struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct ieee80211_channel *c;
int i;
#ifdef __NetBSD__
ieee80211_init();
#endif /* __NetBSD__ */
ether_ifattach(ifp, ic->ic_myaddr);
bpf_attach2(ifp, DLT_IEEE802_11,
sizeof(struct ieee80211_frame_addr4), &ic->ic_rawbpf);
ieee80211_crypto_attach(ic);
/*
* Fill in 802.11 available channel set, mark
* all available channels as active, and pick
* a default channel if not already specified.
*/
memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail));
ic->ic_modecaps |= 1<<IEEE80211_MODE_AUTO;
for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
c = &ic->ic_channels[i];
if (c->ic_flags) {
/*
* Verify driver passed us valid data.
*/
if (i != ieee80211_chan2ieee(ic, c)) {
if_printf(ifp, "bad channel ignored; "
"freq %u flags %x number %u\n",
c->ic_freq, c->ic_flags, i);
c->ic_flags = 0; /* NB: remove */
continue;
}
setbit(ic->ic_chan_avail, i);
/*
* Identify mode capabilities.
*/
if (IEEE80211_IS_CHAN_A(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11A;
if (IEEE80211_IS_CHAN_B(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11B;
if (IEEE80211_IS_CHAN_PUREG(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11G;
if (IEEE80211_IS_CHAN_FHSS(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_FH;
if (IEEE80211_IS_CHAN_T(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO_A;
if (IEEE80211_IS_CHAN_108G(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO_G;
if (ic->ic_curchan == NULL) {
/* arbitrarily pick the first channel */
ic->ic_curchan = &ic->ic_channels[i];
}
}
}
/* validate ic->ic_curmode */
if ((ic->ic_modecaps & (1<<ic->ic_curmode)) == 0)
ic->ic_curmode = IEEE80211_MODE_AUTO;
ic->ic_des_chan = IEEE80211_CHAN_ANYC; /* any channel is ok */
#if 0
/*
* Enable WME by default if we're capable.
*/
if (ic->ic_caps & IEEE80211_C_WME)
ic->ic_flags |= IEEE80211_F_WME;
#endif
(void) ieee80211_setmode(ic, ic->ic_curmode);
if (ic->ic_bintval == 0)
ic->ic_bintval = IEEE80211_BINTVAL_DEFAULT;
ic->ic_bmisstimeout = 7*ic->ic_bintval; /* default 7 beacons */
ic->ic_dtim_period = IEEE80211_DTIM_DEFAULT;
IEEE80211_BEACON_LOCK_INIT(ic, "beacon");
if (ic->ic_lintval == 0)
ic->ic_lintval = ic->ic_bintval;
ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX;
LIST_INSERT_HEAD(&ieee80211com_head, ic, ic_list);
ieee80211_node_attach(ic);
ieee80211_proto_attach(ic);
ieee80211_add_vap(ic);
ieee80211_sysctl_attach(ic); /* NB: requires ic_vap */
/*
* Install a default reset method for the ioctl support.
* The driver is expected to fill this in before calling us.
*/
if (ic->ic_reset == NULL)
ic->ic_reset = ieee80211_default_reset;
}
static int
ieee80211_vap_reset(struct ieee80211vap *vap, ieee80211_reset_request *reset_req)
{
struct ieee80211com *ic = vap->iv_ic;
/* Cancel pending MLME requests */
wlan_mlme_cancel(vap);
/*
* Reset node table include all nodes.
* NB: pairwise keys will be deleted during node cleanup.
*/
ieee80211_reset_bss(vap);
/* Reset aplist configuration parameters */
ieee80211_aplist_config_init(ieee80211_vap_get_aplist_config(vap));
/* Reset RSN settings */
ieee80211_rsn_reset(vap);
/* Reset statistics */
ieee80211_reset_stats(vap, reset_req->reset_hw);
/* Reset some of the misc. vap settings */
vap->iv_des_modecaps = (1 << IEEE80211_MODE_AUTO);
vap->iv_des_nssid = 0;
OS_MEMZERO(&vap->iv_des_ssid[0], (sizeof(ieee80211_ssid) * IEEE80211_SCAN_MAX_SSID));
/* Because reset_start has graspped a mutex which chan_set
*will also try to grasp, so don't call ieee80211_set_channel here.
*/
#if !ATH_RESET_SERIAL
/* Reset some MIB variables if required */
if (reset_req->set_default_mib) {
/*
* NB: Only IEEE80211_RESET_TYPE_DOT11_INTF can reset MIB variables
*/
KASSERT(reset_req->type == IEEE80211_RESET_TYPE_DOT11_INTF, ("invalid reset request\n"));
if (reset_req->reset_mac) {
/* reset regdmn module */
ieee80211_regdmn_reset(ic);
}
if (reset_req->reset_phy) {
/* set the desired PHY mode to 11b */
vap->iv_des_mode = reset_req->phy_mode;
/* change to the default PHY mode if required */
/* set wireless mode */
ieee80211_setmode(ic, vap->iv_des_mode, vap->iv_opmode);
/* set default channel */
ASSERT(vap->iv_des_chan[vap->iv_des_mode] != IEEE80211_CHAN_ANYC);
ieee80211_set_channel(ic, vap->iv_des_chan[vap->iv_des_mode]);
vap->iv_bsschan = ic->ic_curchan;
}
}
#endif
return 0;
}
void
ieee80211_ifattach(struct ifnet *ifp)
{
struct ieee80211com *ic = (void *)ifp;
struct ieee80211_channel *c;
int i;
memcpy(((struct arpcom *)ifp)->ac_enaddr, ic->ic_myaddr,
ETHER_ADDR_LEN);
ether_ifattach(ifp);
ifp->if_output = ieee80211_output;
#if NBPFILTER > 0
bpfattach(&ic->ic_rawbpf, ifp, DLT_IEEE802_11,
sizeof(struct ieee80211_frame_addr4));
#endif
ieee80211_crypto_attach(ifp);
/*
* Fill in 802.11 available channel set, mark
* all available channels as active, and pick
* a default channel if not already specified.
*/
memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail));
ic->ic_modecaps |= 1<<IEEE80211_MODE_AUTO;
for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
c = &ic->ic_channels[i];
if (c->ic_flags) {
/*
* Verify driver passed us valid data.
*/
if (i != ieee80211_chan2ieee(ic, c)) {
printf("%s: bad channel ignored; "
"freq %u flags %x number %u\n",
ifp->if_xname, c->ic_freq, c->ic_flags,
i);
c->ic_flags = 0; /* NB: remove */
continue;
}
setbit(ic->ic_chan_avail, i);
/*
* Identify mode capabilities.
*/
if (IEEE80211_IS_CHAN_A(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11A;
if (IEEE80211_IS_CHAN_B(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11B;
if (IEEE80211_IS_CHAN_PUREG(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11G;
if (IEEE80211_IS_CHAN_T(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO;
}
}
/* validate ic->ic_curmode */
if ((ic->ic_modecaps & (1<<ic->ic_curmode)) == 0)
ic->ic_curmode = IEEE80211_MODE_AUTO;
ic->ic_des_chan = IEEE80211_CHAN_ANYC; /* any channel is ok */
ic->ic_scan_lock = IEEE80211_SCAN_UNLOCKED;
/* IEEE 802.11 defines a MTU >= 2290 */
ifp->if_capabilities |= IFCAP_VLAN_MTU;
ieee80211_setbasicrates(ic);
(void)ieee80211_setmode(ic, ic->ic_curmode);
if (ic->ic_lintval == 0)
ic->ic_lintval = 100; /* default sleep */
ic->ic_bmisstimeout = 7*ic->ic_lintval; /* default 7 beacons */
ic->ic_dtim_period = 1; /* all TIMs are DTIMs */
LIST_INSERT_HEAD(&ieee80211com_head, ic, ic_list);
ieee80211_node_attach(ifp);
ieee80211_proto_attach(ifp);
if_addgroup(ifp, "wlan");
ifp->if_priority = IF_WIRELESS_DEFAULT_PRIORITY;
}
/*
* Handle a media change request.
*/
int
ieee80211_media_change(struct ifnet *ifp)
{
struct ieee80211com *ic = (void *)ifp;
struct ifmedia_entry *ime;
enum ieee80211_opmode newopmode;
enum ieee80211_phymode newphymode;
int i, j, newrate, error = 0;
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''. Eventually it
* needs to be applied to 11g too.
*/
if (ime->ifm_media & IFM_IEEE80211_TURBO) {
if (newphymode != IEEE80211_MODE_11A)
return EINVAL;
newphymode = IEEE80211_MODE_TURBO;
}
/*
* 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;
/*
* 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;
}
}
/*
* 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;
}
error = ENETRESET;
}
#ifdef notdef
if (error == 0)
ifp->if_baudrate = ifmedia_baudrate(ime->ifm_media);
#endif
return error;
}
void
ieee80211_ifattach(struct ifnet *ifp)
{
struct ieee80211com *ic = (void *)ifp;
struct ieee80211_channel *c;
int i;
ether_ifattach(ifp, ic->ic_myaddr);
#if NBPFILTER > 0
bpfattach2(ifp, DLT_IEEE802_11,
sizeof(struct ieee80211_frame_addr4), &ic->ic_rawbpf);
#endif
ieee80211_crypto_attach(ifp);
/*
* Fill in 802.11 available channel set, mark
* all available channels as active, and pick
* a default channel if not already specified.
*/
memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail));
ic->ic_modecaps |= 1<<IEEE80211_MODE_AUTO;
for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
c = &ic->ic_channels[i];
if (c->ic_flags) {
/*
* Verify driver passed us valid data.
*/
if (i != ieee80211_chan2ieee(ic, c)) {
if_printf(ifp, "bad channel ignored; "
"freq %u flags %x number %u\n",
c->ic_freq, c->ic_flags, i);
c->ic_flags = 0; /* NB: remove */
continue;
}
setbit(ic->ic_chan_avail, i);
/*
* Identify mode capabilities.
*/
if (IEEE80211_IS_CHAN_A(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11A;
if (IEEE80211_IS_CHAN_B(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11B;
if (IEEE80211_IS_CHAN_PUREG(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11G;
if (IEEE80211_IS_CHAN_FHSS(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_FH;
if (IEEE80211_IS_CHAN_T(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO;
}
}
/* validate ic->ic_curmode */
if ((ic->ic_modecaps & (1<<ic->ic_curmode)) == 0)
ic->ic_curmode = IEEE80211_MODE_AUTO;
ieee80211_setbasicrates(ic);
(void) ieee80211_setmode(ic, ic->ic_curmode);
ic->ic_des_chan = IEEE80211_CHAN_ANYC; /* any channel is ok */
if (ic->ic_lintval == 0)
ic->ic_lintval = 100; /* default sleep */
ic->ic_bmisstimeout = 7*ic->ic_lintval; /* default 7 beacons */
ieee80211_node_attach(ifp);
ieee80211_proto_attach(ifp);
}
int
ieee80211_ifattach(struct ieee80211com *ic, IEEE80211_REG_PARAMETERS *ieee80211_reg_parm)
{
u_int8_t bcast[IEEE80211_ADDR_LEN] = {0xff,0xff,0xff,0xff,0xff,0xff};
int error = 0;
ic->ic_reg_parm = *ieee80211_reg_parm;
/* set up broadcast address */
IEEE80211_ADDR_COPY(ic->ic_broadcast, bcast);
/* initialize channel list */
ieee80211_update_channellist(ic, 0);
/* initialize rate set */
ieee80211_init_rateset(ic);
/* validate ic->ic_curmode */
if (!IEEE80211_SUPPORT_PHY_MODE(ic, ic->ic_curmode))
ic->ic_curmode = IEEE80211_MODE_AUTO;
/* setup initial channel settings */
ic->ic_curchan = ieee80211_get_channel(ic, 0); /* arbitrarily pick the first channel */
/* Enable marking of dfs by default */
ic->ic_flags_ext |= IEEE80211_FEXT_MARKDFS;
if (ic->ic_reg_parm.htEnableWepTkip) {
ieee80211_ic_wep_tkip_htrate_set(ic);
} else {
ieee80211_ic_wep_tkip_htrate_clear(ic);
}
if (ic->ic_reg_parm.htVendorIeEnable)
IEEE80211_ENABLE_HTVIE(ic);
/* whether to ignore 11d beacon */
if (ic->ic_reg_parm.ignore11dBeacon)
IEEE80211_ENABLE_IGNORE_11D_BEACON(ic);
if (ic->ic_reg_parm.disallowAutoCCchange) {
ieee80211_ic_disallowAutoCCchange_set(ic);
}
else {
ieee80211_ic_disallowAutoCCchange_clear(ic);
}
(void) ieee80211_setmode(ic, ic->ic_curmode, ic->ic_opmode);
ic->ic_intval = IEEE80211_BINTVAL_DEFAULT; /* beacon interval */
ic->ic_set_beacon_interval(ic);
ic->ic_lintval = 1; /* listen interval */
ic->ic_lintval_assoc = IEEE80211_LINTVAL_MAX; /* listen interval to use in association */
ic->ic_bmisstimeout = IEEE80211_BMISS_LIMIT * ic->ic_intval;
TAILQ_INIT(&ic->ic_vaps);
ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX;
/* Intialize WDS Auto Detect mode */
ic->ic_flags_ext |= IEEE80211_FEXT_WDS_AUTODETECT;
/*
** Enable the 11d country code IE by default
*/
ic->ic_flags_ext |= IEEE80211_FEXT_COUNTRYIE;
/* setup CWM configuration */
ic->ic_cwm_set_mode(ic, ic->ic_reg_parm.cwmMode);
ic->ic_cwm_set_extoffset(ic, ic->ic_reg_parm.cwmExtOffset);
ic->ic_cwm_set_extprotmode(ic, ic->ic_reg_parm.cwmExtProtMode);
ic->ic_cwm_set_extprotspacing(ic, ic->ic_reg_parm.cwmExtProtSpacing);
#if tbd
/* XXX - TODO - move these into ath layer */
#else
ic->ic_cwm_set_enable(ic, ic->ic_reg_parm.cwmEnable);
ic->ic_cwm_set_extbusythreshold(ic, ic->ic_reg_parm.cwmExtBusyThreshold);
#endif
ic->ic_enable2GHzHt40Cap = ic->ic_reg_parm.enable2GHzHt40Cap;
#ifdef ATH_COALESCING
ic->ic_tx_coalescing = ic->ic_reg_parm.txCoalescingEnable;
#endif
ic->ic_ignoreDynamicHalt = ic->ic_reg_parm.ignoreDynamicHalt;
/* default to auto ADDBA mode */
ic->ic_addba_mode = ADDBA_MODE_AUTO;
if (ic->ic_reg_parm.ht20AdhocEnable) {
/*
* Support HT rates in Ad hoc connections.
*/
if (IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NA_HT20) ||
IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NG_HT20)) {
ieee80211_ic_ht20Adhoc_set(ic);
if (ic->ic_reg_parm.htAdhocAggrEnable) {
ieee80211_ic_htAdhocAggr_set(ic);
}
}
}
if (ic->ic_reg_parm.ht40AdhocEnable) {
/*
* Support HT rates in Ad hoc connections.
*/
if (IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NA_HT40PLUS) ||
IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NA_HT40MINUS) ||
IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NG_HT40PLUS) ||
IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NG_HT40MINUS)) {
ieee80211_ic_ht40Adhoc_set(ic);
if (ic->ic_reg_parm.htAdhocAggrEnable) {
ieee80211_ic_htAdhocAggr_set(ic);
}
}
}
OS_INIT_TIMER(ic->ic_osdev, &(ic->ic_inact_timer), ieee80211_inact_timeout, (void *) (ic));
#if UMAC_SUPPORT_WNM
OS_INIT_TIMER(ic->ic_osdev, &(ic->ic_bssload_timer), ieee80211_bssload_timeout, (void *) (ic));
#endif
if (ic->ic_reg_parm.disable2040Coexist) {
ic->ic_flags |= IEEE80211_F_COEXT_DISABLE;
} else {
ic->ic_flags &= ~IEEE80211_F_COEXT_DISABLE;
}
/* setup other modules */
/* The TSF Timer module is required when P2P or Off-channel support are required */
ic->ic_tsf_timer = ieee80211_tsf_timer_attach(ic);
#if UMAC_SUPPORT_TDLS_CHAN_SWITCH
/* TDLS off-channel support requires TSF timer */
if (ic->ic_tsf_timer) {
ieee80211_ic_off_channel_support_set(ic);
}
else {
ieee80211_ic_off_channel_support_clear(ic);
}
#else
ieee80211_ic_off_channel_support_clear(ic);
#endif
ieee80211_p2p_attach(ic);
ieee80211_crypto_attach(ic);
ieee80211_node_attach(ic);
ieee80211_proto_attach(ic);
ieee80211_power_attach(ic);
ieee80211_mlme_attach(ic);
#if ATH_SUPPORT_DFS
ieee80211_dfs_attach(ic);
#endif /* ATH_SUPPORT_DFS */
if (IEEE80211_ENAB_AOW(ic))
ieee80211_aow_attach(ic);
error = ieee80211_scan_table_attach(ic, &(ic->ic_scan_table), ic->ic_osdev);
if (error) {
ieee80211_node_detach(ic);
return error;
}
/*
* By default overwrite probe response with beacon IE in scan entry.
*/
ieee80211_ic_override_proberesp_ie_set(ic);
error = ieee80211_scan_attach(&(ic->ic_scanner),
ic,
ic->ic_osdev,
ieee80211_is_connected,
ieee80211_is_txq_empty,
ieee80211_is_sw_txq_empty);
if (error) {
/* detach and free already allocated memory for scan */
ieee80211_scan_table_detach(&(ic->ic_scan_table));
ieee80211_node_detach(ic);
return error;
}
ic->ic_resmgr = ieee80211_resmgr_create(ic, IEEE80211_RESMGR_MODE_SINGLE_CHANNEL);
error = ieee80211_acs_attach(&(ic->ic_acs),
ic,
ic->ic_osdev);
if (error) {
/* detach and free already allocated memory for scan */
ieee80211_scan_table_detach(&(ic->ic_scan_table));
ieee80211_scan_detach(&(ic->ic_scanner));
ieee80211_node_detach(ic);
return error;
}
ic->ic_notify_tx_bcn_mgr = ieee80211_notify_tx_bcn_attach(ic);
ieee80211_rptplacement_attach(ic);
IEEE80211_TDLS_ATTACH(ic);
#if UMAC_SUPPORT_VI_DBG
ieee80211_vi_dbg_attach(ic);
#endif
ieee80211_quiet_attach(ic);
ieee80211_admctl_attach(ic);
/*
* Perform steps that require multiple objects to be initialized.
* For example, cross references between objects such as ResMgr and Scanner.
*/
ieee80211_scan_attach_complete(ic->ic_scanner);
ieee80211_resmgr_create_complete(ic->ic_resmgr);
ieee80211_smartantenna_attach(ic);
ieee80211_prdperfstats_attach(ic);
ic->ic_get_ext_chan_info = ieee80211_get_extchan_info;
/* initialization complete */
ic->ic_initialized = 1;
return 0;
}