aboutsummaryrefslogtreecommitdiff
path: root/net/mac80211/mlme.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r--net/mac80211/mlme.c91
1 files changed, 64 insertions, 27 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7d53382f1a5..df12e746b03 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -508,7 +508,6 @@ static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata,
wireless_send_event(sdata->dev, IWEVASSOCREQIE, &wrqu,
ifsta->assocreq_ies);
}
-
if (ifsta->assocresp_ies) {
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = ifsta->assocresp_ies_len;
@@ -2557,6 +2556,33 @@ u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
return supp_rates;
}
+static u64 ieee80211_sta_get_mandatory_rates(struct ieee80211_local *local,
+ enum ieee80211_band band)
+{
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_rate *bitrates;
+ u64 mandatory_rates;
+ enum ieee80211_rate_flags mandatory_flag;
+ int i;
+
+ sband = local->hw.wiphy->bands[band];
+ if (!sband) {
+ WARN_ON(1);
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ }
+
+ if (band == IEEE80211_BAND_2GHZ)
+ mandatory_flag = IEEE80211_RATE_MANDATORY_B;
+ else
+ mandatory_flag = IEEE80211_RATE_MANDATORY_A;
+
+ bitrates = sband->bitrates;
+ mandatory_rates = 0;
+ for (i = 0; i < sband->n_bitrates; i++)
+ if (bitrates[i].flags & mandatory_flag)
+ mandatory_rates |= BIT(i);
+ return mandatory_rates;
+}
static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
@@ -2568,9 +2594,11 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
int freq, clen;
struct ieee80211_sta_bss *bss;
struct sta_info *sta;
- u64 beacon_timestamp, rx_timestamp;
struct ieee80211_channel *channel;
+ u64 beacon_timestamp, rx_timestamp;
+ u64 supp_rates = 0;
bool beacon = ieee80211_is_beacon(mgmt->frame_control);
+ enum ieee80211_band band = rx_status->band;
DECLARE_MAC_BUF(mac);
DECLARE_MAC_BUF(mac2);
@@ -2578,30 +2606,41 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
if (ieee80211_vif_is_mesh(&sdata->vif) && elems->mesh_id &&
elems->mesh_config && mesh_matches_local(elems, sdata)) {
- u64 rates = ieee80211_sta_get_rates(local, elems,
- rx_status->band);
+ supp_rates = ieee80211_sta_get_rates(local, elems, band);
- mesh_neighbour_update(mgmt->sa, rates, sdata,
+ mesh_neighbour_update(mgmt->sa, supp_rates, sdata,
mesh_peer_accepts_plinks(elems));
}
rcu_read_lock();
if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems->supp_rates &&
- memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
- (sta = sta_info_get(local, mgmt->sa))) {
- u64 prev_rates;
- u64 supp_rates = ieee80211_sta_get_rates(local, elems,
- rx_status->band);
-
- prev_rates = sta->supp_rates[rx_status->band];
- sta->supp_rates[rx_status->band] &= supp_rates;
- if (sta->supp_rates[rx_status->band] == 0) {
- /* No matching rates - this should not really happen.
- * Make sure that at least one rate is marked
- * supported to avoid issues with TX rate ctrl. */
- sta->supp_rates[rx_status->band] =
- sdata->u.sta.supp_rates_bits[rx_status->band];
+ memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
+
+ supp_rates = ieee80211_sta_get_rates(local, elems, band);
+
+ sta = sta_info_get(local, mgmt->sa);
+ if (sta) {
+ u64 prev_rates;
+
+ prev_rates = sta->supp_rates[band];
+ /* make sure mandatory rates are always added */
+ sta->supp_rates[band] = supp_rates |
+ ieee80211_sta_get_mandatory_rates(local, band);
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ if (sta->supp_rates[band] != prev_rates)
+ printk(KERN_DEBUG "%s: updated supp_rates set "
+ "for %s based on beacon info (0x%llx | "
+ "0x%llx -> 0x%llx)\n",
+ sdata->dev->name, print_mac(mac, sta->addr),
+ (unsigned long long) prev_rates,
+ (unsigned long long) supp_rates,
+ (unsigned long long) sta->supp_rates[band]);
+#endif
+ } else {
+ ieee80211_ibss_add_sta(sdata, NULL, mgmt->bssid,
+ mgmt->sa, supp_rates);
}
}
@@ -2683,7 +2722,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
bss->supp_rates_len += clen;
}
- bss->band = rx_status->band;
+ bss->band = band;
bss->timestamp = beacon_timestamp;
bss->last_update = jiffies;
@@ -2738,7 +2777,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
* e.g: at 1 MBit that means mactime is 192 usec earlier
* (=24 bytes * 8 usecs/byte) than the beacon timestamp.
*/
- int rate = local->hw.wiphy->bands[rx_status->band]->
+ int rate = local->hw.wiphy->bands[band]->
bitrates[rx_status->rate_idx].bitrate;
rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate);
} else if (local && local->ops && local->ops->get_tsf)
@@ -2766,7 +2805,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
ieee80211_sta_join_ibss(sdata, &sdata->u.sta, bss);
ieee80211_ibss_add_sta(sdata, NULL,
mgmt->bssid, mgmt->sa,
- BIT(rx_status->rate_idx));
+ supp_rates);
}
}
@@ -3032,7 +3071,6 @@ void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *
kfree_skb(skb);
}
-
static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb)
{
@@ -4316,10 +4354,9 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
set_sta_flags(sta, WLAN_STA_AUTHORIZED);
- if (supp_rates)
- sta->supp_rates[band] = supp_rates;
- else
- sta->supp_rates[band] = sdata->u.sta.supp_rates_bits[band];
+ /* make sure mandatory rates are always added */
+ sta->supp_rates[band] = supp_rates |
+ ieee80211_sta_get_mandatory_rates(local, band);
rate_control_rate_init(sta, local);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 11:54:08 +0000