mac80211: eliminate IBSS warning in rate_lowest_index()
In IBSS mode prior to join/creation of new IBSS it is possible that a frame from unknown station is received and an ibss_add_sta() is called. This will cause a warning in rate_lowest_index() since the list of supported rates of our station is not initialized yet. The fix is to add ibss stations with a rate we received that frame at; this single-element set will be extended later based on beacon data. Also there is no need to store stations from a foreign IBSS. Signed-off-by: Vladimir Koutny <vlado@ksp.sk> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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c644bce95f
commit
87291c0269
3 changed files with 20 additions and 7 deletions
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@ -876,7 +876,7 @@ void ieee80211_rx_bss_list_deinit(struct net_device *dev);
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int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
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struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
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struct sk_buff *skb, u8 *bssid,
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u8 *addr);
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u8 *addr, u64 supp_rates);
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int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
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int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
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void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
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@ -2863,7 +2863,8 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
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dev->name, print_mac(mac, mgmt->bssid));
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ieee80211_sta_join_ibss(dev, &sdata->u.sta, bss);
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ieee80211_ibss_add_sta(dev, NULL,
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mgmt->bssid, mgmt->sa);
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mgmt->bssid, mgmt->sa,
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BIT(rx_status->rate_idx));
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}
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}
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@ -4307,12 +4308,13 @@ int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len)
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struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
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struct sk_buff *skb, u8 *bssid,
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u8 *addr)
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u8 *addr, u64 supp_rates)
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{
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struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
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struct sta_info *sta;
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struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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DECLARE_MAC_BUF(mac);
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int band = local->hw.conf.channel->band;
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/* TODO: Could consider removing the least recently used entry and
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* allow new one to be added. */
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@ -4324,6 +4326,9 @@ struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
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return NULL;
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}
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if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid))
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return NULL;
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printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n",
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wiphy_name(local->hw.wiphy), print_mac(mac, addr), dev->name);
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@ -4333,8 +4338,10 @@ struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
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set_sta_flags(sta, WLAN_STA_AUTHORIZED);
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sta->supp_rates[local->hw.conf.channel->band] =
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sdata->u.sta.supp_rates_bits[local->hw.conf.channel->band];
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if (supp_rates)
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sta->supp_rates[band] = supp_rates;
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else
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sta->supp_rates[band] = sdata->u.sta.supp_rates_bits[band];
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rate_control_rate_init(sta, local);
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@ -1823,8 +1823,13 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
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if (!bssid)
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return 0;
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if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
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(rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON)
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(rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
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if (!rx->sta)
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rx->sta = ieee80211_ibss_add_sta(sdata->dev,
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rx->skb, bssid, hdr->addr2,
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BIT(rx->status->rate_idx));
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return 1;
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}
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else if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
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if (!(rx->flags & IEEE80211_RX_IN_SCAN))
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return 0;
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@ -1837,7 +1842,8 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
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rx->flags &= ~IEEE80211_RX_RA_MATCH;
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} else if (!rx->sta)
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rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
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bssid, hdr->addr2);
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bssid, hdr->addr2,
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BIT(rx->status->rate_idx));
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break;
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case IEEE80211_IF_TYPE_MESH_POINT:
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if (!multicast &&
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