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Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r--net/mac80211/mlme.c131
1 files changed, 99 insertions, 32 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index d8484cd870de..a804e0220ed7 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2717,18 +2717,10 @@ static u32 ieee80211_link_set_associated(struct ieee80211_link_data *link,
}
if (link->u.mgd.have_beacon) {
- /*
- * If the AP is buggy we may get here with no DTIM period
- * known, so assume it's 1 which is the only safe assumption
- * in that case, although if the TIM IE is broken powersave
- * probably just won't work at all.
- */
- bss_conf->dtim_period = link->u.mgd.dtim_period ?: 1;
bss_conf->beacon_rate = bss->beacon_rate;
changed |= BSS_CHANGED_BEACON_INFO;
} else {
bss_conf->beacon_rate = NULL;
- bss_conf->dtim_period = 0;
}
/* Tell the driver to monitor connection quality (if supported) */
@@ -2754,7 +2746,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
struct cfg80211_bss *cbss = assoc_data->link[link_id].bss;
struct ieee80211_link_data *link;
- if (!cbss)
+ if (!cbss ||
+ assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS)
continue;
link = sdata_dereference(sdata->link[link_id], sdata);
@@ -2782,7 +2775,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
struct ieee80211_link_data *link;
struct cfg80211_bss *cbss = assoc_data->link[link_id].bss;
- if (!cbss)
+ if (!cbss ||
+ assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS)
continue;
link = sdata_dereference(sdata->link[link_id], sdata);
@@ -3868,9 +3862,15 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
}
}
-static bool ieee80211_twt_req_supported(const struct link_sta_info *link_sta,
+static bool ieee80211_twt_req_supported(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_supported_band *sband,
+ const struct link_sta_info *link_sta,
const struct ieee802_11_elems *elems)
{
+ const struct ieee80211_sta_he_cap *own_he_cap =
+ ieee80211_get_he_iftype_cap(sband,
+ ieee80211_vif_type_p2p(&sdata->vif));
+
if (elems->ext_capab_len < 10)
return false;
@@ -3878,14 +3878,19 @@ static bool ieee80211_twt_req_supported(const struct link_sta_info *link_sta,
return false;
return link_sta->pub->he_cap.he_cap_elem.mac_cap_info[0] &
- IEEE80211_HE_MAC_CAP0_TWT_RES;
+ IEEE80211_HE_MAC_CAP0_TWT_RES &&
+ own_he_cap &&
+ (own_he_cap->he_cap_elem.mac_cap_info[0] &
+ IEEE80211_HE_MAC_CAP0_TWT_REQ);
}
-static int ieee80211_recalc_twt_req(struct ieee80211_link_data *link,
+static int ieee80211_recalc_twt_req(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_link_data *link,
struct link_sta_info *link_sta,
struct ieee802_11_elems *elems)
{
- bool twt = ieee80211_twt_req_supported(link_sta, elems);
+ bool twt = ieee80211_twt_req_supported(sdata, sband, link_sta, elems);
if (link->conf->twt_requester != twt) {
link->conf->twt_requester = twt;
@@ -3923,11 +3928,12 @@ static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link,
struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data;
struct ieee80211_bss_conf *bss_conf = link->conf;
struct ieee80211_local *local = sdata->local;
+ unsigned int link_id = link->link_id;
struct ieee80211_elems_parse_params parse_params = {
.start = elem_start,
.len = elem_len,
.bss = cbss,
- .link_id = link == &sdata->deflink ? -1 : link->link_id,
+ .link_id = link_id == assoc_data->assoc_link_id ? -1 : link_id,
.from_ap = true,
};
bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ;
@@ -3942,8 +3948,35 @@ static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link,
if (!elems)
return false;
- /* FIXME: use from STA profile element after parsing that */
- capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
+ if (link_id == assoc_data->assoc_link_id) {
+ capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
+
+ /*
+ * we should not get to this flow unless the association was
+ * successful, so set the status directly to success
+ */
+ assoc_data->link[link_id].status = WLAN_STATUS_SUCCESS;
+ } else if (!elems->prof) {
+ ret = false;
+ goto out;
+ } else {
+ const u8 *ptr = elems->prof->variable +
+ elems->prof->sta_info_len - 1;
+
+ /*
+ * During parsing, we validated that these fields exist,
+ * otherwise elems->prof would have been set to NULL.
+ */
+ capab_info = get_unaligned_le16(ptr);
+ assoc_data->link[link_id].status = get_unaligned_le16(ptr + 2);
+
+ if (assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) {
+ link_info(link, "association response status code=%u\n",
+ assoc_data->link[link_id].status);
+ ret = true;
+ goto out;
+ }
+ }
if (!is_s1g && !elems->supp_rates) {
sdata_info(sdata, "no SuppRates element in AssocResp\n");
@@ -4099,7 +4132,8 @@ static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link,
else
bss_conf->twt_protected = false;
- *changed |= ieee80211_recalc_twt_req(link, link_sta, elems);
+ *changed |= ieee80211_recalc_twt_req(sdata, sband, link,
+ link_sta, elems);
if (elems->eht_operation && elems->eht_cap &&
!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) {
@@ -4864,6 +4898,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
unsigned int link_id;
struct sta_info *sta;
u64 changed[IEEE80211_MLD_MAX_NUM_LINKS] = {};
+ u16 valid_links = 0;
int err;
mutex_lock(&sdata->local->sta_mtx);
@@ -4876,8 +4911,6 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
goto out_err;
if (sdata->vif.valid_links) {
- u16 valid_links = 0;
-
for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
if (!assoc_data->link[link_id].bss)
continue;
@@ -4894,10 +4927,11 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
}
for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
+ struct cfg80211_bss *cbss = assoc_data->link[link_id].bss;
struct ieee80211_link_data *link;
struct link_sta_info *link_sta;
- if (!assoc_data->link[link_id].bss)
+ if (!cbss)
continue;
link = sdata_dereference(sdata->link[link_id], sdata);
@@ -4906,28 +4940,36 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
if (sdata->vif.valid_links)
link_info(link,
- "local address %pM, AP link address %pM\n",
+ "local address %pM, AP link address %pM%s\n",
link->conf->addr,
- assoc_data->link[link_id].bss->bssid);
+ assoc_data->link[link_id].bss->bssid,
+ link_id == assoc_data->assoc_link_id ?
+ " (assoc)" : "");
link_sta = rcu_dereference_protected(sta->link[link_id],
lockdep_is_held(&local->sta_mtx));
if (WARN_ON(!link_sta))
goto out_err;
- if (link_id != assoc_data->assoc_link_id) {
- struct cfg80211_bss *cbss = assoc_data->link[link_id].bss;
+ if (!link->u.mgd.have_beacon) {
const struct cfg80211_bss_ies *ies;
rcu_read_lock();
- ies = rcu_dereference(cbss->ies);
+ ies = rcu_dereference(cbss->beacon_ies);
+ if (ies)
+ link->u.mgd.have_beacon = true;
+ else
+ ies = rcu_dereference(cbss->ies);
ieee80211_get_dtim(ies,
&link->conf->sync_dtim_count,
&link->u.mgd.dtim_period);
- link->conf->dtim_period = link->u.mgd.dtim_period ?: 1;
link->conf->beacon_int = cbss->beacon_interval;
rcu_read_unlock();
+ }
+
+ link->conf->dtim_period = link->u.mgd.dtim_period ?: 1;
+ if (link_id != assoc_data->assoc_link_id) {
err = ieee80211_prep_channel(sdata, link, cbss,
&link->u.mgd.conn_flags);
if (err) {
@@ -4947,6 +4989,12 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
&changed[link_id]))
goto out_err;
+ if (assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) {
+ valid_links &= ~BIT(link_id);
+ ieee80211_sta_remove_link(sta, link_id);
+ continue;
+ }
+
if (link_id != assoc_data->assoc_link_id) {
err = ieee80211_sta_activate_link(sta, link_id);
if (err)
@@ -4954,6 +5002,9 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
}
}
+ /* links might have changed due to rejected ones, set them again */
+ ieee80211_vif_set_links(sdata, valid_links);
+
rate_control_rate_init(sta);
if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) {
@@ -5033,6 +5084,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
struct cfg80211_rx_assoc_resp resp = {
.uapsd_queues = -1,
};
+ u8 ap_mld_addr[ETH_ALEN] __aligned(2);
unsigned int link_id;
sdata_assert_lock(sdata);
@@ -5187,10 +5239,13 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
link = sdata_dereference(sdata->link[link_id], sdata);
if (!link)
continue;
+
if (!assoc_data->link[link_id].bss)
continue;
+
resp.links[link_id].bss = assoc_data->link[link_id].bss;
resp.links[link_id].addr = link->conf->addr;
+ resp.links[link_id].status = assoc_data->link[link_id].status;
/* get uapsd queues configuration - same for all links */
resp.uapsd_queues = 0;
@@ -5199,6 +5254,11 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
resp.uapsd_queues |= ieee80211_ac_to_qos_mask[ac];
}
+ if (sdata->vif.valid_links) {
+ ether_addr_copy(ap_mld_addr, sdata->vif.cfg.ap_addr);
+ resp.ap_mld_addr = ap_mld_addr;
+ }
+
ieee80211_destroy_assoc_data(sdata,
status_code == WLAN_STATUS_SUCCESS ?
ASSOC_SUCCESS :
@@ -5208,8 +5268,6 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
resp.len = len;
resp.req_ies = ifmgd->assoc_req_ies;
resp.req_ies_len = ifmgd->assoc_req_ies_len;
- if (sdata->vif.valid_links)
- resp.ap_mld_addr = sdata->vif.cfg.ap_addr;
cfg80211_rx_assoc_resp(sdata->dev, &resp);
notify_driver:
drv_mgd_complete_tx(sdata->local, sdata, &info);
@@ -5432,6 +5490,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link,
struct ieee802_11_elems *elems;
struct ieee80211_local *local = sdata->local;
struct ieee80211_chanctx_conf *chanctx_conf;
+ struct ieee80211_supported_band *sband;
struct ieee80211_channel *chan;
struct link_sta_info *link_sta;
struct sta_info *sta;
@@ -5694,7 +5753,12 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link,
goto free;
}
- changed |= ieee80211_recalc_twt_req(link, link_sta, elems);
+ if (WARN_ON(!link->conf->chandef.chan))
+ goto free;
+
+ sband = local->hw.wiphy->bands[link->conf->chandef.chan->band];
+
+ changed |= ieee80211_recalc_twt_req(sdata, sband, link, link_sta, elems);
if (ieee80211_config_bw(link, elems->ht_cap_elem,
elems->vht_cap_elem, elems->ht_operation,
@@ -6640,6 +6704,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
req->ap_mld_addr ?: req->bss->bssid,
ETH_ALEN);
auth_data->bss = req->bss;
+ auth_data->link_id = req->link_id;
if (req->auth_data_len >= 4) {
if (req->auth_type == NL80211_AUTHTYPE_SAE) {
@@ -6658,7 +6723,8 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
* removal and re-addition of the STA entry in
* ieee80211_prep_connection().
*/
- cont_auth = ifmgd->auth_data && req->bss == ifmgd->auth_data->bss;
+ cont_auth = ifmgd->auth_data && req->bss == ifmgd->auth_data->bss &&
+ ifmgd->auth_data->link_id == req->link_id;
if (req->ie && req->ie_len) {
memcpy(&auth_data->data[auth_data->data_len],
@@ -6982,7 +7048,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
/* keep sta info, bssid if matching */
match = ether_addr_equal(ifmgd->auth_data->ap_addr,
- assoc_data->ap_addr);
+ assoc_data->ap_addr) &&
+ ifmgd->auth_data->link_id == req->link_id;
ieee80211_destroy_auth_data(sdata, match);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.