diff options
| -rw-r--r-- | net/mac80211/ibss.c | 67 |
1 files changed, 40 insertions, 27 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index c94a695d848..c236079ed38 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -63,19 +63,18 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata, static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, const u8 *bssid, const int beacon_int, struct ieee80211_channel *chan, - const size_t supp_rates_len, - const u8 *supp_rates, + const u32 basic_rates, const u16 capability, u64 tsf) { struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct ieee80211_local *local = sdata->local; - int rates, i, j; + int rates, i; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; u8 *pos; struct ieee80211_supported_band *sband; u32 bss_change; - + u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; /* Reset own TSF to allow time synchronization work. */ drv_reset_tsf(local); @@ -101,6 +100,16 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, sband = local->hw.wiphy->bands[chan->band]; + /* build supported rates array */ + pos = supp_rates; + for (i = 0; i < sband->n_bitrates; i++) { + int rate = sband->bitrates[i].bitrate; + u8 basic = 0; + if (basic_rates & BIT(i)) + basic = 0x80; + *pos++ = basic | (u8) (rate / 5); + } + /* Build IBSS probe response */ mgmt = (void *) skb_put(skb, 24 + sizeof(mgmt->u.beacon)); memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon)); @@ -118,7 +127,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, *pos++ = ifibss->ssid_len; memcpy(pos, ifibss->ssid, ifibss->ssid_len); - rates = supp_rates_len; + rates = sband->n_bitrates; if (rates > 8) rates = 8; pos = skb_put(skb, 2 + rates); @@ -140,8 +149,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, *pos++ = 0; *pos++ = 0; - if (supp_rates_len > 8) { - rates = supp_rates_len - 8; + if (sband->n_bitrates > 8) { + rates = sband->n_bitrates - 8; pos = skb_put(skb, 2 + rates); *pos++ = WLAN_EID_EXT_SUPP_RATES; *pos++ = rates; @@ -162,15 +171,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, bss_change |= BSS_CHANGED_BEACON_ENABLED; ieee80211_bss_info_change_notify(sdata, bss_change); - rates = 0; - for (i = 0; i < supp_rates_len; i++) { - int bitrate = (supp_rates[i] & 0x7f) * 5; - for (j = 0; j < sband->n_bitrates; j++) - if (sband->bitrates[j].bitrate == bitrate) - rates |= BIT(j); - } - - ieee80211_sta_def_wmm_params(sdata, supp_rates_len, supp_rates); + ieee80211_sta_def_wmm_params(sdata, sband->n_bitrates, supp_rates); ifibss->state = IEEE80211_IBSS_MLME_JOINED; mod_timer(&ifibss->timer, @@ -184,15 +185,35 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, struct ieee80211_bss *bss) { + struct ieee80211_supported_band *sband; + u32 basic_rates; + int i, j; u16 beacon_int = bss->cbss.beacon_interval; if (beacon_int < 10) beacon_int = 10; + sband = sdata->local->hw.wiphy->bands[bss->cbss.channel->band]; + + basic_rates = 0; + + for (i = 0; i < bss->supp_rates_len; i++) { + int rate = (bss->supp_rates[i] & 0x7f) * 5; + bool is_basic = !!(bss->supp_rates[i] & 0x80); + + for (j = 0; j < sband->n_bitrates; j++) { + if (sband->bitrates[j].bitrate == rate) { + if (is_basic) + basic_rates |= BIT(j); + break; + } + } + } + __ieee80211_sta_join_ibss(sdata, bss->cbss.bssid, beacon_int, bss->cbss.channel, - bss->supp_rates_len, bss->supp_rates, + basic_rates, bss->cbss.capability, bss->cbss.tsf); } @@ -449,9 +470,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; - u8 *pos; u8 bssid[ETH_ALEN]; - u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; u16 capability; int i; @@ -480,15 +499,9 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) else sdata->drop_unencrypted = 0; - pos = supp_rates; - for (i = 0; i < sband->n_bitrates; i++) { - int rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); - } - __ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int, - ifibss->channel, sband->n_bitrates, - supp_rates, capability, 0); + ifibss->channel, 3, /* first two are basic */ + capability, 0); } static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) |