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-rw-r--r--net/mac80211/util.c271
1 files changed, 234 insertions, 37 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index abc29df6834c..682a164f795a 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -973,8 +973,10 @@ static void ieee80211_parse_extension_element(u32 *crc,
}
break;
case WLAN_EID_EXT_HE_CAPABILITY:
- elems->he_cap = data;
- elems->he_cap_len = len;
+ if (ieee80211_he_capa_size_ok(data, len)) {
+ elems->he_cap = data;
+ elems->he_cap_len = len;
+ }
break;
case WLAN_EID_EXT_HE_OPERATION:
if (len >= sizeof(*elems->he_operation) &&
@@ -1006,6 +1008,17 @@ static void ieee80211_parse_extension_element(u32 *crc,
if (len >= sizeof(*elems->he_6ghz_capa))
elems->he_6ghz_capa = data;
break;
+ case WLAN_EID_EXT_EHT_CAPABILITY:
+ if (ieee80211_eht_capa_size_ok(elems->he_cap,
+ data, len)) {
+ elems->eht_cap = data;
+ elems->eht_cap_len = len;
+ }
+ break;
+ case WLAN_EID_EXT_EHT_OPERATION:
+ if (ieee80211_eht_oper_size_ok(data, len))
+ elems->eht_operation = data;
+ break;
}
}
@@ -1799,6 +1812,7 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
const struct ieee80211_sta_he_cap *he_cap;
+ const struct ieee80211_sta_eht_cap *eht_cap;
u8 *pos = buffer, *end = buffer + buffer_len;
size_t noffset;
int supp_rates_len, i;
@@ -1979,6 +1993,18 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata,
goto out_err;
}
+ eht_cap = ieee80211_get_eht_iftype_cap(sband,
+ ieee80211_vif_type_p2p(&sdata->vif));
+
+ if (eht_cap &&
+ cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band),
+ IEEE80211_CHAN_NO_HE |
+ IEEE80211_CHAN_NO_EHT)) {
+ pos = ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, end);
+ if (!pos)
+ goto out_err;
+ }
+
if (cfg80211_any_usable_channels(local->hw.wiphy,
BIT(NL80211_BAND_6GHZ),
IEEE80211_CHAN_NO_HE)) {
@@ -2321,6 +2347,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
struct cfg80211_sched_scan_request *sched_scan_req;
bool sched_scan_stopped = false;
bool suspended = local->suspended;
+ bool in_reconfig = false;
/* nothing to do if HW shouldn't run */
if (!local->open_count)
@@ -2672,6 +2699,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART);
if (local->in_reconfig) {
+ in_reconfig = local->in_reconfig;
local->in_reconfig = false;
barrier();
@@ -2689,6 +2717,15 @@ int ieee80211_reconfig(struct ieee80211_local *local)
IEEE80211_QUEUE_STOP_REASON_SUSPEND,
false);
+ if (in_reconfig) {
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ if (!ieee80211_sdata_running(sdata))
+ continue;
+ if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ ieee80211_sta_restart(sdata);
+ }
+ }
+
if (!suspended)
return 0;
@@ -2718,7 +2755,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
return 0;
}
-void ieee80211_resume_disconnect(struct ieee80211_vif *vif)
+static void ieee80211_reconfig_disconnect(struct ieee80211_vif *vif, u8 flag)
{
struct ieee80211_sub_if_data *sdata;
struct ieee80211_local *local;
@@ -2730,19 +2767,35 @@ void ieee80211_resume_disconnect(struct ieee80211_vif *vif)
sdata = vif_to_sdata(vif);
local = sdata->local;
- if (WARN_ON(!local->resuming))
+ if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_RESUME &&
+ !local->resuming))
+ return;
+
+ if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_HW_RESTART &&
+ !local->in_reconfig))
return;
if (WARN_ON(vif->type != NL80211_IFTYPE_STATION))
return;
- sdata->flags |= IEEE80211_SDATA_DISCONNECT_RESUME;
+ sdata->flags |= flag;
mutex_lock(&local->key_mtx);
list_for_each_entry(key, &sdata->key_list, list)
key->flags |= KEY_FLAG_TAINTED;
mutex_unlock(&local->key_mtx);
}
+
+void ieee80211_hw_restart_disconnect(struct ieee80211_vif *vif)
+{
+ ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_HW_RESTART);
+}
+EXPORT_SYMBOL_GPL(ieee80211_hw_restart_disconnect);
+
+void ieee80211_resume_disconnect(struct ieee80211_vif *vif)
+{
+ ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_RESUME);
+}
EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect);
void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata)
@@ -3073,6 +3126,10 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
else
ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
break;
+ case NL80211_CHAN_WIDTH_320:
+ /* HT information element should not be included on 6GHz */
+ WARN_ON(1);
+ return pos;
default:
ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE;
break;
@@ -3112,6 +3169,10 @@ void ieee80211_ie_build_wide_bw_cs(u8 *pos,
case NL80211_CHAN_WIDTH_80P80:
*pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
break;
+ case NL80211_CHAN_WIDTH_320:
+ /* The behavior is not defined for 320 MHz channels */
+ WARN_ON(1);
+ fallthrough;
default:
*pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT;
}
@@ -3164,6 +3225,10 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
case NL80211_CHAN_WIDTH_80:
vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
break;
+ case NL80211_CHAN_WIDTH_320:
+ /* VHT information element should not be included on 6GHz */
+ WARN_ON(1);
+ return pos;
default:
vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT;
break;
@@ -3224,6 +3289,13 @@ u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef)
he_6ghz_op->ccfs1 = 0;
switch (chandef->width) {
+ case NL80211_CHAN_WIDTH_320:
+ /*
+ * TODO: mesh operation is not defined over 6GHz 320 MHz
+ * channels.
+ */
+ WARN_ON(1);
+ break;
case NL80211_CHAN_WIDTH_160:
/* Convert 160 MHz channel width to new style as interop
* workaround.
@@ -3412,17 +3484,19 @@ bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
const struct ieee80211_he_operation *he_oper,
+ const struct ieee80211_eht_operation *eht_oper,
struct cfg80211_chan_def *chandef)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif);
const struct ieee80211_sta_he_cap *he_cap;
+ const struct ieee80211_sta_eht_cap *eht_cap;
struct cfg80211_chan_def he_chandef = *chandef;
const struct ieee80211_he_6ghz_oper *he_6ghz_oper;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
- bool support_80_80, support_160;
- u8 he_phy_cap;
+ bool support_80_80, support_160, support_320;
+ u8 he_phy_cap, eht_phy_cap;
u32 freq;
if (chandef->chan->band != NL80211_BAND_6GHZ)
@@ -3451,6 +3525,12 @@ bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
return false;
}
+ eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype);
+ if (!eht_cap) {
+ sdata_info(sdata, "Missing iftype sband data/EHT cap");
+ eht_oper = NULL;
+ }
+
he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper);
if (!he_6ghz_oper) {
@@ -3460,6 +3540,11 @@ bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
return false;
}
+ /*
+ * The EHT operation IE does not contain the primary channel so the
+ * primary channel frequency should be taken from the 6 GHz operation
+ * information.
+ */
freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary,
NL80211_BAND_6GHZ);
he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq);
@@ -3477,43 +3562,80 @@ bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
break;
}
- switch (u8_get_bits(he_6ghz_oper->control,
- IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) {
- case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ:
- he_chandef.width = NL80211_CHAN_WIDTH_20;
- break;
- case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ:
- he_chandef.width = NL80211_CHAN_WIDTH_40;
- break;
- case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ:
- he_chandef.width = NL80211_CHAN_WIDTH_80;
- break;
- case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ:
- he_chandef.width = NL80211_CHAN_WIDTH_80;
- if (!he_6ghz_oper->ccfs1)
+ if (!eht_oper) {
+ switch (u8_get_bits(he_6ghz_oper->control,
+ IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) {
+ case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ:
+ he_chandef.width = NL80211_CHAN_WIDTH_20;
break;
- if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) {
+ case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ:
+ he_chandef.width = NL80211_CHAN_WIDTH_40;
+ break;
+ case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ:
+ he_chandef.width = NL80211_CHAN_WIDTH_80;
+ break;
+ case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ:
+ he_chandef.width = NL80211_CHAN_WIDTH_80;
+ if (!he_6ghz_oper->ccfs1)
+ break;
+ if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) {
+ if (support_160)
+ he_chandef.width = NL80211_CHAN_WIDTH_160;
+ } else {
+ if (support_80_80)
+ he_chandef.width = NL80211_CHAN_WIDTH_80P80;
+ }
+ break;
+ }
+
+ if (he_chandef.width == NL80211_CHAN_WIDTH_160) {
+ he_chandef.center_freq1 =
+ ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
+ NL80211_BAND_6GHZ);
+ } else {
+ he_chandef.center_freq1 =
+ ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0,
+ NL80211_BAND_6GHZ);
+ if (support_80_80 || support_160)
+ he_chandef.center_freq2 =
+ ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
+ NL80211_BAND_6GHZ);
+ }
+ } else {
+ eht_phy_cap = eht_cap->eht_cap_elem.phy_cap_info[0];
+ support_320 =
+ eht_phy_cap & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ;
+
+ switch (u8_get_bits(eht_oper->chan_width,
+ IEEE80211_EHT_OPER_CHAN_WIDTH)) {
+ case IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ:
+ he_chandef.width = NL80211_CHAN_WIDTH_20;
+ break;
+ case IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ:
+ he_chandef.width = NL80211_CHAN_WIDTH_40;
+ break;
+ case IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ:
+ he_chandef.width = NL80211_CHAN_WIDTH_80;
+ break;
+ case IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ:
if (support_160)
he_chandef.width = NL80211_CHAN_WIDTH_160;
- } else {
- if (support_80_80)
- he_chandef.width = NL80211_CHAN_WIDTH_80P80;
+ else
+ he_chandef.width = NL80211_CHAN_WIDTH_80;
+ break;
+ case IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ:
+ if (support_320)
+ he_chandef.width = NL80211_CHAN_WIDTH_320;
+ else if (support_160)
+ he_chandef.width = NL80211_CHAN_WIDTH_160;
+ else
+ he_chandef.width = NL80211_CHAN_WIDTH_80;
+ break;
}
- break;
- }
- if (he_chandef.width == NL80211_CHAN_WIDTH_160) {
- he_chandef.center_freq1 =
- ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
- NL80211_BAND_6GHZ);
- } else {
he_chandef.center_freq1 =
- ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0,
+ ieee80211_channel_to_frequency(eht_oper->ccfs,
NL80211_BAND_6GHZ);
- if (support_80_80 || support_160)
- he_chandef.center_freq2 =
- ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
- NL80211_BAND_6GHZ);
}
if (!cfg80211_chandef_valid(&he_chandef)) {
@@ -3985,6 +4107,15 @@ u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c)
ret = IEEE80211_STA_DISABLE_80P80MHZ |
IEEE80211_STA_DISABLE_160MHZ;
break;
+ case NL80211_CHAN_WIDTH_320:
+ /* n_P20 */
+ tmp = (150 + c->chan->center_freq - c->center_freq1) / 20;
+ /* n_P160 */
+ tmp /= 80;
+ c->center_freq1 = c->center_freq1 - 80 + 160 * tmp;
+ c->width = NL80211_CHAN_WIDTH_160;
+ ret = IEEE80211_STA_DISABLE_320MHZ;
+ break;
default:
case NL80211_CHAN_WIDTH_20_NOHT:
WARN_ON_ONCE(1);
@@ -4649,3 +4780,69 @@ u16 ieee80211_encode_usf(int listen_interval)
return (u16) listen_interval;
}
+
+u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype)
+{
+ const struct ieee80211_sta_he_cap *he_cap;
+ const struct ieee80211_sta_eht_cap *eht_cap;
+ struct ieee80211_supported_band *sband;
+ u8 n;
+
+ sband = ieee80211_get_sband(sdata);
+ if (!sband)
+ return 0;
+
+ he_cap = ieee80211_get_he_iftype_cap(sband, iftype);
+ eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype);
+ if (!he_cap || !eht_cap)
+ return 0;
+
+ n = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem,
+ &eht_cap->eht_cap_elem);
+ return 2 + 1 +
+ sizeof(he_cap->he_cap_elem) + n +
+ ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0],
+ eht_cap->eht_cap_elem.phy_cap_info);
+ return 0;
+}
+
+u8 *ieee80211_ie_build_eht_cap(u8 *pos,
+ const struct ieee80211_sta_he_cap *he_cap,
+ const struct ieee80211_sta_eht_cap *eht_cap,
+ u8 *end)
+{
+ u8 mcs_nss_len, ppet_len;
+ u8 ie_len;
+ u8 *orig_pos = pos;
+
+ /* Make sure we have place for the IE */
+ if (!he_cap || !eht_cap)
+ return orig_pos;
+
+ mcs_nss_len = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem,
+ &eht_cap->eht_cap_elem);
+ ppet_len = ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0],
+ eht_cap->eht_cap_elem.phy_cap_info);
+
+ ie_len = 2 + 1 + sizeof(eht_cap->eht_cap_elem) + mcs_nss_len + ppet_len;
+ if ((end - pos) < ie_len)
+ return orig_pos;
+
+ *pos++ = WLAN_EID_EXTENSION;
+ *pos++ = ie_len - 2;
+ *pos++ = WLAN_EID_EXT_EHT_CAPABILITY;
+
+ /* Fixed data */
+ memcpy(pos, &eht_cap->eht_cap_elem, sizeof(eht_cap->eht_cap_elem));
+ pos += sizeof(eht_cap->eht_cap_elem);
+
+ memcpy(pos, &eht_cap->eht_mcs_nss_supp, mcs_nss_len);
+ pos += mcs_nss_len;
+
+ if (ppet_len) {
+ memcpy(pos, &eht_cap->eht_ppe_thres, ppet_len);
+ pos += ppet_len;
+ }
+
+ return pos;
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.