diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/cfg.c | 45 | ||||
| -rw-r--r-- | net/mac80211/ibss.c | 81 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 7 | ||||
| -rw-r--r-- | net/mac80211/mesh.c | 3 | ||||
| -rw-r--r-- | net/mac80211/mesh_plink.c | 2 | ||||
| -rw-r--r-- | net/mac80211/mlme.c | 95 | ||||
| -rw-r--r-- | net/mac80211/rate.c | 46 | ||||
| -rw-r--r-- | net/mac80211/rx.c | 7 | ||||
| -rw-r--r-- | net/mac80211/scan.c | 27 | ||||
| -rw-r--r-- | net/mac80211/status.c | 18 | ||||
| -rw-r--r-- | net/mac80211/tx.c | 21 | ||||
| -rw-r--r-- | net/mac80211/util.c | 159 |
12 files changed, 352 insertions, 159 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 8184d12..b82fff6 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -395,9 +395,13 @@ void sta_set_rate_info_tx(struct sta_info *sta, rinfo->nss = ieee80211_rate_get_vht_nss(rate); } else { struct ieee80211_supported_band *sband; + int shift = ieee80211_vif_get_shift(&sta->sdata->vif); + u16 brate; + sband = sta->local->hw.wiphy->bands[ ieee80211_get_sdata_band(sta->sdata)]; - rinfo->legacy = sband->bitrates[rate->idx].bitrate; + brate = sband->bitrates[rate->idx].bitrate; + rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); } if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; @@ -422,11 +426,13 @@ void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) rinfo->mcs = sta->last_rx_rate_idx; } else { struct ieee80211_supported_band *sband; + int shift = ieee80211_vif_get_shift(&sta->sdata->vif); + u16 brate; sband = sta->local->hw.wiphy->bands[ ieee80211_get_sdata_band(sta->sdata)]; - rinfo->legacy = - sband->bitrates[sta->last_rx_rate_idx].bitrate; + brate = sband->bitrates[sta->last_rx_rate_idx].bitrate; + rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); } if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) @@ -1190,8 +1196,6 @@ static int sta_apply_parameters(struct ieee80211_local *local, struct station_parameters *params) { int ret = 0; - u32 rates; - int i, j; struct ieee80211_supported_band *sband; struct ieee80211_sub_if_data *sdata = sta->sdata; enum ieee80211_band band = ieee80211_get_sdata_band(sdata); @@ -1284,16 +1288,10 @@ static int sta_apply_parameters(struct ieee80211_local *local, sta->listen_interval = params->listen_interval; if (params->supported_rates) { - rates = 0; - - for (i = 0; i < params->supported_rates_len; i++) { - int rate = (params->supported_rates[i] & 0x7f) * 5; - for (j = 0; j < sband->n_bitrates; j++) { - if (sband->bitrates[j].bitrate == rate) - rates |= BIT(j); - } - } - sta->sta.supp_rates[band] = rates; + ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, + sband, params->supported_rates, + params->supported_rates_len, + &sta->sta.supp_rates[band]); } if (params->ht_capa) @@ -1956,18 +1954,11 @@ static int ieee80211_change_bss(struct wiphy *wiphy, } if (params->basic_rates) { - int i, j; - u32 rates = 0; - struct ieee80211_supported_band *sband = wiphy->bands[band]; - - for (i = 0; i < params->basic_rates_len; i++) { - int rate = (params->basic_rates[i] & 0x7f) * 5; - for (j = 0; j < sband->n_bitrates; j++) { - if (sband->bitrates[j].bitrate == rate) - rates |= BIT(j); - } - } - sdata->vif.bss_conf.basic_rates = rates; + ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, + wiphy->bands[band], + params->basic_rates, + params->basic_rates_len, + &sdata->vif.bss_conf.basic_rates); changed |= BSS_CHANGED_BASIC_RATES; } diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 7f290a8..272a3b3 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -43,16 +43,17 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, { struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct ieee80211_local *local = sdata->local; - int rates, i; + int rates_n = 0, i, ri; struct ieee80211_mgmt *mgmt; u8 *pos; struct ieee80211_supported_band *sband; struct cfg80211_bss *bss; - u32 bss_change; + u32 bss_change, rate_flags, rates = 0, rates_added = 0; u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; struct cfg80211_chan_def chandef; struct beacon_data *presp; int frame_len; + int shift; sdata_assert_lock(sdata); @@ -99,6 +100,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, memcpy(ifibss->bssid, bssid, ETH_ALEN); sband = local->hw.wiphy->bands[chan->band]; + shift = ieee80211_vif_get_shift(&sdata->vif); /* Build IBSS probe response */ frame_len = sizeof(struct ieee80211_hdr_3addr) + @@ -134,15 +136,29 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, memcpy(pos, ifibss->ssid, ifibss->ssid_len); pos += ifibss->ssid_len; - rates = min_t(int, 8, sband->n_bitrates); + rate_flags = ieee80211_chandef_rate_flags(&chandef); + for (i = 0; i < sband->n_bitrates; i++) { + if ((rate_flags & sband->bitrates[i].flags) != rate_flags) + continue; + + rates |= BIT(i); + rates_n++; + } + *pos++ = WLAN_EID_SUPP_RATES; - *pos++ = rates; - for (i = 0; i < rates; i++) { - int rate = sband->bitrates[i].bitrate; + *pos++ = min_t(int, 8, rates_n); + for (ri = 0; ri < sband->n_bitrates; ri++) { + int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate, + 5 * (1 << shift)); u8 basic = 0; - if (basic_rates & BIT(i)) + if (!(rates & BIT(ri))) + continue; + + if (basic_rates & BIT(ri)) basic = 0x80; - *pos++ = basic | (u8) (rate / 5); + *pos++ = basic | (u8) rate; + if (++rates_added == 8) + break; } if (sband->band == IEEE80211_BAND_2GHZ) { @@ -157,15 +173,20 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, *pos++ = 0; *pos++ = 0; - if (sband->n_bitrates > 8) { + /* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */ + if (rates_n > 8) { *pos++ = WLAN_EID_EXT_SUPP_RATES; - *pos++ = sband->n_bitrates - 8; - for (i = 8; i < sband->n_bitrates; i++) { - int rate = sband->bitrates[i].bitrate; + *pos++ = rates_n - 8; + for (; ri < sband->n_bitrates; ri++) { + int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate, + 5 * (1 << shift)); u8 basic = 0; - if (basic_rates & BIT(i)) + if (!(rates & BIT(ri))) + continue; + + if (basic_rates & BIT(ri)) basic = 0x80; - *pos++ = basic | (u8) (rate / 5); + *pos++ = basic | (u8) rate; } } @@ -244,7 +265,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, sdata->vif.bss_conf.ibss_creator = creator; ieee80211_bss_info_change_notify(sdata, bss_change); - ieee80211_sta_def_wmm_params(sdata, sband->n_bitrates, supp_rates); + ieee80211_sta_def_wmm_params(sdata, rates, supp_rates); ifibss->state = IEEE80211_IBSS_MLME_JOINED; mod_timer(&ifibss->timer, @@ -268,6 +289,8 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, u16 beacon_int = cbss->beacon_interval; const struct cfg80211_bss_ies *ies; u64 tsf; + u32 rate_flags; + int shift; sdata_assert_lock(sdata); @@ -275,15 +298,24 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, beacon_int = 10; sband = sdata->local->hw.wiphy->bands[cbss->channel->band]; + rate_flags = ieee80211_chandef_rate_flags(&sdata->u.ibss.chandef); + shift = ieee80211_vif_get_shift(&sdata->vif); basic_rates = 0; for (i = 0; i < bss->supp_rates_len; i++) { - int rate = (bss->supp_rates[i] & 0x7f) * 5; + int rate = bss->supp_rates[i] & 0x7f; bool is_basic = !!(bss->supp_rates[i] & 0x80); for (j = 0; j < sband->n_bitrates; j++) { - if (sband->bitrates[j].bitrate == rate) { + int brate; + if ((rate_flags & sband->bitrates[j].flags) + != rate_flags) + continue; + + brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, + 5 * (1 << shift)); + if (brate == rate) { if (is_basic) basic_rates |= BIT(j); break; @@ -465,7 +497,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, sta = sta_info_get(sdata, mgmt->sa); if (elems->supp_rates) { - supp_rates = ieee80211_sta_get_rates(local, elems, + supp_rates = ieee80211_sta_get_rates(sdata, elems, band, NULL); if (sta) { u32 prev_rates; @@ -589,7 +621,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, "beacon TSF higher than local TSF - IBSS merge with BSSID %pM\n", mgmt->bssid); ieee80211_sta_join_ibss(sdata, bss); - supp_rates = ieee80211_sta_get_rates(local, elems, band, NULL); + supp_rates = ieee80211_sta_get_rates(sdata, elems, band, NULL); ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates); rcu_read_unlock(); @@ -1024,6 +1056,9 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, struct cfg80211_ibss_params *params) { u32 changed = 0; + u32 rate_flags; + struct ieee80211_supported_band *sband; + int i; if (params->bssid) { memcpy(sdata->u.ibss.bssid, params->bssid, ETH_ALEN); @@ -1034,6 +1069,14 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, sdata->u.ibss.privacy = params->privacy; sdata->u.ibss.control_port = params->control_port; sdata->u.ibss.basic_rates = params->basic_rates; + + /* fix basic_rates if channel does not support these rates */ + rate_flags = ieee80211_chandef_rate_flags(¶ms->chandef); + sband = sdata->local->hw.wiphy->bands[params->chandef.chan->band]; + for (i = 0; i < sband->n_bitrates; i++) { + if ((rate_flags & sband->bitrates[i].flags) != rate_flags) + sdata->u.ibss.basic_rates &= ~BIT(i); + } memcpy(sdata->vif.bss_conf.mcast_rate, params->mcast_rate, sizeof(params->mcast_rate)); diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 338e7ca..6596da6 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1601,7 +1601,7 @@ void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, size_t buffer_len, const u8 *ie, size_t ie_len, enum ieee80211_band band, u32 rate_mask, - u8 channel); + struct cfg80211_chan_def *chandef); struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, u32 ratemask, struct ieee80211_channel *chan, @@ -1617,7 +1617,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, const size_t supp_rates_len, const u8 *supp_rates); -u32 ieee80211_sta_get_rates(struct ieee80211_local *local, +u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, struct ieee802_11_elems *elems, enum ieee80211_band band, u32 *basic_rates); int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, @@ -1634,6 +1634,9 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, u16 prot_mode); u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, u32 cap); +int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, + const struct ieee80211_supported_band *sband, + const u8 *srates, int srates_len, u32 *rates); int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, bool need_basic, enum ieee80211_band band); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 447f41b..e536f22 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -62,7 +62,6 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, struct ieee802_11_elems *ie) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; - struct ieee80211_local *local = sdata->local; u32 basic_rates = 0; struct cfg80211_chan_def sta_chan_def; @@ -85,7 +84,7 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth))) return false; - ieee80211_sta_get_rates(local, ie, ieee80211_get_sdata_band(sdata), + ieee80211_sta_get_rates(sdata, ie, ieee80211_get_sdata_band(sdata), &basic_rates); if (sdata->vif.bss_conf.basic_rates != basic_rates) diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 02c05fa..6b65d50 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -379,7 +379,7 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata, u32 rates, basic_rates = 0, changed = 0; sband = local->hw.wiphy->bands[band]; - rates = ieee80211_sta_get_rates(local, elems, band, &basic_rates); + rates = ieee80211_sta_get_rates(sdata, elems, band, &basic_rates); spin_lock_bh(&sta->lock); sta->last_rx = jiffies; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index ae31968..f7552c2 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -478,27 +478,6 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata, /* frame sending functions */ -static int ieee80211_compatible_rates(const u8 *supp_rates, int supp_rates_len, - struct ieee80211_supported_band *sband, - u32 *rates) -{ - int i, j, count; - *rates = 0; - count = 0; - for (i = 0; i < supp_rates_len; i++) { - int rate = (supp_rates[i] & 0x7F) * 5; - - for (j = 0; j < sband->n_bitrates; j++) - if (sband->bitrates[j].bitrate == rate) { - *rates |= BIT(j); - count++; - break; - } - } - - return count; -} - static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, u8 ap_ht_param, struct ieee80211_supported_band *sband, @@ -617,12 +596,12 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) struct ieee80211_mgmt *mgmt; u8 *pos, qos_info; size_t offset = 0, noffset; - int i, count, rates_len, supp_rates_len; + int i, count, rates_len, supp_rates_len, shift; u16 capab; struct ieee80211_supported_band *sband; struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_channel *chan; - u32 rates = 0; + u32 rate_flags, rates = 0; sdata_assert_lock(sdata); @@ -633,8 +612,10 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) return; } chan = chanctx_conf->def.chan; + rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def); rcu_read_unlock(); sband = local->hw.wiphy->bands[chan->band]; + shift = ieee80211_vif_get_shift(&sdata->vif); if (assoc_data->supp_rates_len) { /* @@ -643,17 +624,24 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) * in the association request (e.g. D-Link DAP 1353 in * b-only mode)... */ - rates_len = ieee80211_compatible_rates(assoc_data->supp_rates, - assoc_data->supp_rates_len, - sband, &rates); + rates_len = ieee80211_parse_bitrates(&chanctx_conf->def, sband, + assoc_data->supp_rates, + assoc_data->supp_rates_len, + &rates); } else { /* * In case AP not provide any supported rates information * before association, we send information element(s) with * all rates that we support. */ - rates = ~0; - rates_len = sband->n_bitrates; + rates_len = 0; + for (i = 0; i < sband->n_bitrates; i++) { + if ((rate_flags & sband->bitrates[i].flags) + != rate_flags) + continue; + rates |= BIT(i); + rates_len++; + } } skb = alloc_skb(local->hw.extra_tx_headroom + @@ -730,8 +718,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) count = 0; for (i = 0; i < sband->n_bitrates; i++) { if (BIT(i) & rates) { - int rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); + int rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, + 5 * (1 << shift)); + *pos++ = (u8) rate; if (++count == 8) break; } @@ -744,8 +733,10 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) for (i++; i < sband->n_bitrates; i++) { if (BIT(i) & rates) { - int rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); + int rate; + rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, + 5 * (1 << shift)); + *pos++ = (u8) rate; } } } @@ -2432,15 +2423,16 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband, u8 *supp_rates, unsigned int supp_rates_len, u32 *rates, u32 *basic_rates, bool *have_higher_than_11mbit, - int *min_rate, int *min_rate_index) + int *min_rate, int *min_rate_index, + int shift, u32 rate_flags) { int i, j; for (i = 0; i < supp_rates_len; i++) { - int rate = (supp_rates[i] & 0x7f) * 5; + int rate = supp_rates[i] & 0x7f; bool is_basic = !!(supp_rates[i] & 0x80); - if (rate > 110) + if ((rate * 5 * (1 << shift)) > 110) *have_higher_than_11mbit = true; /* @@ -2456,12 +2448,20 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband, continue; for (j = 0; j < sband->n_bitrates; j++) { - if (sband->bitrates[j].bitrate == rate) { + struct ieee80211_rate *br; + int brate; + + br = &sband->bitrates[j]; + if ((rate_flags & br->flags) != rate_flags) + continue; + + brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); + if (brate == rate) { *rates |= BIT(j); if (is_basic) *basic_rates |= BIT(j); - if (rate < *min_rate) { - *min_rate = rate; + if ((rate * 5) < *min_rate) { + *min_rate = rate * 5; *min_rate_index = j; } break; @@ -3884,27 +3884,40 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, if (!new_sta) return -ENOMEM; } - if (new_sta) { u32 rates = 0, basic_rates = 0; bool have_higher_than_11mbit; int min_rate = INT_MAX, min_rate_index = -1; + struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_supported_band *sband; const struct cfg80211_bss_ies *ies; + int shift; + u32 rate_flags; sband = local->hw.wiphy->bands[cbss->channel->band]; err = ieee80211_prep_channel(sdata, cbss); if (err) { sta_info_free(local, new_sta); - return err; + return -EINVAL; } + shift = ieee80211_vif_get_shift(&sdata->vif); + + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + return -EINVAL; + } + rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def); + rcu_read_unlock(); ieee80211_get_rates(sband, bss->supp_rates, bss->supp_rates_len, &rates, &basic_rates, &have_higher_than_11mbit, - &min_rate, &min_rate_index); + &min_rate, &min_rate_index, + shift, rate_flags); /* * This used to be a workaround for basic rates missing diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 30d58d2..ba63ac8 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -232,37 +232,28 @@ static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, /* could not find a basic rate; use original selection */ } -static inline s8 -rate_lowest_non_cck_index(struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta) +static void __rate_control_send_low(struct ieee80211_hw *hw, + struct ieee80211_supported_band *sband, + struct ieee80211_sta *sta, + struct ieee80211_tx_info *info) { int i; + u32 rate_flags = + ieee80211_chandef_rate_flags(&hw->conf.chandef); + if ((sband->band == IEEE80211_BAND_2GHZ) && + (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)) + rate_flags |= IEEE80211_RATE_ERP_G; + + info->control.rates[0].idx = 0; for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *srate = &sband->bitrates[i]; - if ((srate->bitrate == 10) || (srate->bitrate == 20) || - (srate->bitrate == 55) || (srate->bitrate == 110)) + if (!rate_supported(sta, sband->band, i)) continue; - if (rate_supported(sta, sband->band, i)) - return i; + info->control.rates[0].idx = i; + break; } - - /* No matching rate found */ - return 0; -} - -static void __rate_control_send_low(struct ieee80211_hw *hw, - struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, - struct ieee80211_tx_info *info) -{ - if ((sband->band != IEEE80211_BAND_2GHZ) || - !(info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)) - info->control.rates[0].idx = rate_lowest_index(sband, sta); - else - info->control.rates[0].idx = - rate_lowest_non_cck_index(sband, sta); + WARN_ON_ONCE(i == sband->n_bitrates); info->control.rates[0].count = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? @@ -585,6 +576,7 @@ static void rate_control_apply_mask(struct ieee80211_sub_if_data *sdata, u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN]; bool has_mcs_mask; u32 mask; + u32 rate_flags; int i; /* @@ -594,6 +586,12 @@ static void rate_control_apply_mask(struct ieee80211_sub_if_data *sdata, */ mask = sdata->rc_rateidx_mask[info->band]; has_mcs_mask = sdata->rc_has_mcs_mask[info->band]; + rate_flags = + ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); + for (i = 0; i < sband->n_bitrates; i++) + if ((rate_flags & sband->bitrates[i].flags) != rate_flags) + mask &= ~BIT(i); + if (mask == (1 << sband->n_bitrates) - 1 && !has_mcs_mask) return; diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index deeeca1..0ac7512 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -236,8 +236,13 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, */ *pos = 0; } else { + int shift = 0; rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_RATE); - *pos = rate->bitrate / 5; + if (status->flag & RX_FLAG_10MHZ) + shift = 1; + else if (status->flag & RX_FLAG_5MHZ) + shift = 2; + *pos = DIV_ROUND_UP(rate->bitrate, 5 * (1 << shift)); } pos++; diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 1b122a7..819d095 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -204,10 +204,29 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb) ieee80211_rx_bss_put(local, bss); } +static void +ieee80211_prepare_scan_chandef(struct cfg80211_chan_def *chandef, + enum nl80211_bss_scan_width scan_width) +{ + memset(chandef, 0, sizeof(*chandef)); + switch (scan_width) { + case NL80211_BSS_CHAN_WIDTH_5: + chandef->width = NL80211_CHAN_WIDTH_5; + break; + case NL80211_BSS_CHAN_WIDTH_10: + chandef->width = NL80211_CHAN_WIDTH_10; + break; + default: + chandef->width = NL80211_CHAN_WIDTH_20_NOHT; + break; + } +} + /* return false if no more work */ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local) { struct cfg80211_scan_request *req = local->scan_req; + struct cfg80211_chan_def chandef; enum ieee80211_band band; int i, ielen, n_chans; @@ -229,11 +248,12 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local) } while (!n_chans); local->hw_scan_req->n_channels = n_chans; + ieee80211_prepare_scan_chandef(&chandef, req->scan_width); ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie, local->hw_scan_ies_bufsize, req->ie, req->ie_len, band, - req->rates[band], 0); + req->rates[band], &chandef); local->hw_scan_req->ie_len = ielen; local->hw_scan_req->no_cck = req->no_cck; @@ -912,6 +932,7 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_sched_scan_ies sched_scan_ies = {}; + struct cfg80211_chan_def chandef; int ret, i, iebufsz; iebufsz = 2 + IEEE80211_MAX_SSID_LEN + @@ -939,10 +960,12 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, goto out_free; } + ieee80211_prepare_scan_chandef(&chandef, req->scan_width); + sched_scan_ies.len[i] = ieee80211_build_preq_ies(local, sched_scan_ies.ie[i], iebufsz, req->ie, req->ie_len, - i, (u32) -1, 0); + i, (u32) -1, &chandef); } ret = drv_sched_scan_start(local, sdata, req, &sched_scan_ies); diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 4343920..6ad4c14 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -252,9 +252,10 @@ static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info) return len; } -static void ieee80211_add_tx_radiotap_header(struct ieee80211_supported_band - *sband, struct sk_buff *skb, - int retry_count, int rtap_len) +static void +ieee80211_add_tx_radiotap_header(struct ieee80211_supported_band *sband, + struct sk_buff *skb, int retry_count, + int rtap_len, int shift) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; @@ -280,8 +281,11 @@ static void ieee80211_add_tx_radiotap_header(struct ieee80211_supported_band /* IEEE80211_RADIOTAP_RATE */ if (info->status.rates[0].idx >= 0 && !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) { + u16 rate; + rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_RATE); - *pos = sband->bitrates[info->status.rates[0].idx].bitrate / 5; + rate = sband->bitrates[info->status.rates[0].idx].bitrate; + *pos = DIV_ROUND_UP(rate, 5 * (1 << shift)); /* padding for tx flags */ pos += 2; } @@ -424,6 +428,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) bool acked; struct ieee80211_bar *bar; int rtap_len; + int shift = 0; for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { if ((info->flags & IEEE80211_TX_CTL_AMPDU) && @@ -458,6 +463,8 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) if (!ether_addr_equal(hdr->addr2, sta->sdata->vif.addr)) continue; + shift = ieee80211_vif_get_shift(&sta->sdata->vif); + if (info->flags & IEEE80211_TX_STATUS_EOSP) clear_sta_flag(sta, WLAN_STA_SP); @@ -624,7 +631,8 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) dev_kfree_skb(skb); return; } - ieee80211_add_tx_radiotap_header(sband, skb, retry_count, rtap_len); + ieee80211_add_tx_radiotap_header(sband, skb, retry_count, rtap_len, + shift); /* XXX: is this sufficient for BPF? */ skb_set_mac_header(skb, 0); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 3523daa..f82301b 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -40,12 +40,22 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, struct sk_buff *skb, int group_addr, int next_frag_len) { - int rate, mrate, erp, dur, i, shift; + int rate, mrate, erp, dur, i, shift = 0; struct ieee80211_rate *txrate; struct ieee80211_local *local = tx->local; struct ieee80211_supported_band *sband; struct ieee80211_hdr *hdr; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_chanctx_conf *chanctx_conf; + u32 rate_flags = 0; + + rcu_read_lock(); + chanctx_conf = rcu_dereference(tx->sdata->vif.chanctx_conf); + if (chanctx_conf) { + shift = ieee80211_chandef_get_shift(&chanctx_conf->def); + rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def); + } + rcu_read_unlock(); /* assume HW handles this */ if (tx->rate.flags & IEEE80211_TX_RC_MCS) @@ -122,8 +132,11 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, if (r->bitrate > txrate->bitrate) break; + if ((rate_flags & r->flags) != rate_flags) + continue; + if (tx->sdata->vif.bss_conf.basic_rates & BIT(i)) - rate = r->bitrate; + rate = DIV_ROUND_UP(r->bitrate, 1 << shift); switch (sband->band) { case IEEE80211_BAND_2GHZ: { @@ -150,11 +163,9 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, if (rate == -1) { /* No matching basic rate found; use highest suitable mandatory * PHY rate */ - rate = mrate; + rate = DIV_ROUND_UP(mrate, 1 << shift); } - shift = ieee80211_vif_get_shift(&tx->sdata->vif); - /* Don't calculate ACKs for QoS Frames with NoAck Policy set */ if (ieee80211_is_data_qos(hdr->frame_control) && *(ieee80211_get_qos_ctl(hdr)) & IEEE80211_QOS_CTL_ACK_POLICY_NOACK) diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 61856e1..1e45891c 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -141,14 +141,18 @@ int ieee80211_frame_duration(enum ieee80211_band band, size_t len, dur = 16; /* SIFS + signal ext */ dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */ dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */ - dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10, - 4 * rate); /* T_SYM x N_SYM */ /* IEEE 802.11-2012 18.3.2.4: all values above are: * * times 4 for 5 MHz * * times 2 for 10 MHz */ dur *= 1 << shift; + + /* rates should already consider the channel bandwidth, + * don't apply divisor again. + */ + dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10, + 4 * rate); /* T_SYM x N_SYM */ } else { /* * 802.11b or 802.11g with 802.11b compatibility: @@ -205,7 +209,7 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, struct ieee80211_rate *rate; struct ieee80211_sub_if_data *sdata; bool short_preamble; - int erp, shift = 0; + int erp, shift = 0, bitrate; u16 dur; struct ieee80211_supported_band *sband; @@ -224,14 +228,16 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, shift = ieee80211_vif_get_shift(vif); } + bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); + /* CTS duration */ - dur = ieee80211_frame_duration(sband->band, 10, rate->bitrate, + dur = ieee80211_frame_duration(sband->band, 10, bitrate, erp, short_preamble, shift); /* Data frame duration */ - dur += ieee80211_frame_duration(sband->band, frame_len, rate->bitrate, + dur += ieee80211_frame_duration(sband->band, frame_len, bitrate, erp, short_preamble, shift); /* ACK duration */ - dur += ieee80211_frame_duration(sband->band, 10, rate->bitrate, + dur += ieee80211_frame_duration(sband->band, 10, bitrate, erp, short_preamble, shift); return cpu_to_le16(dur); @@ -247,7 +253,7 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, struct ieee80211_rate *rate; struct ieee80211_sub_if_data *sdata; bool short_preamble; - int erp, shift = 0; + int erp, shift = 0, bitrate; u16 dur; struct ieee80211_supported_band *sband; @@ -265,12 +271,14 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, shift = ieee80211_vif_get_shift(vif); } + bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); + /* Data frame duration */ - dur = ieee80211_frame_duration(sband->band, frame_len, rate->bitrate, + dur = ieee80211_frame_duration(sband->band, frame_len, bitrate, erp, short_preamble, shift); if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) { /* ACK duration */ - dur += ieee80211_frame_duration(sband->band, 10, rate->bitrate, + dur += ieee80211_frame_duration(sband->band, 10, bitrate, erp, short_preamble, shift); } @@ -1175,7 +1183,7 @@ void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, size_t buffer_len, const u8 *ie, size_t ie_len, enum ieee80211_band band, u32 rate_mask, - u8 channel) + struct cfg80211_chan_def *chandef) { struct ieee80211_supported_band *sband; u8 *pos = buffer, *end = buffer + buffer_len; @@ -1184,16 +1192,26 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, u8 rates[32]; int num_rates; int ext_rates_len; + int shift; + u32 rate_flags; sband = local->hw.wiphy->bands[band]; if (WARN_ON_ONCE(!sband)) return 0; + rate_flags = ieee80211_chandef_rate_flags(chandef); + shift = ieee80211_chandef_get_shift(chandef); + num_rates = 0; for (i = 0; i < sband->n_bitrates; i++) { if ((BIT(i) & rate_mask) == 0) continue; /* skip rate */ - rates[num_rates++] = (u8) (sband->bitrates[i].bitrate / 5); + if ((rate_flags & sband->bitrates[i].flags) != rate_flags) + continue; + + rates[num_rates++] = + (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, + (1 << shift) * 5); } supp_rates_len = min_t(int, num_rates, 8); @@ -1233,12 +1251,13 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, pos += ext_rates_len; } - if (channel && sband->band == IEEE80211_BAND_2GHZ) { + if (chandef->chan && sband->band == IEEE80211_BAND_2GHZ) { if (end - pos < 3) goto out_err; *pos++ = WLAN_EID_DS_PARAMS; *pos++ = 1; - *pos++ = channel; + *pos++ = ieee80211_frequency_to_channel( + chandef->chan->center_freq); } /* insert custom IEs that go before HT */ @@ -1303,9 +1322,9 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, bool directed) { struct ieee80211_local *local = sdata->local; + struct cfg80211_chan_def chandef; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; - u8 chan_no; int ies_len; /* @@ -1313,10 +1332,11 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, * in order to maximize the chance that we get a response. Some * badly-behaved APs don't respond when this parameter is included. */ + chandef.width = sdata->vif.bss_conf.chandef.width; if (directed) - chan_no = 0; + chandef.chan = NULL; else - chan_no = ieee80211_frequency_to_channel(chan->center_freq); + chandef.chan = chan; skb = ieee80211_probereq_get(&local->hw, &sdata->vif, ssid, ssid_len, 100 + ie_len); @@ -1326,7 +1346,7 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb), skb_tailroom(skb), ie, ie_len, chan->band, - ratemask, chan_no); + ratemask, &chandef); skb_put(skb, ies_len); if (dst) { @@ -1360,16 +1380,19 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, } } -u32 ieee80211_sta_get_rates(struct ieee80211_local *local, +u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, struct ieee802_11_elems *elems, enum ieee80211_band band, u32 *basic_rates) { struct ieee80211_supported_band *sband; struct ieee80211_rate *bitrates; size_t num_rates; - u32 supp_rates; - int i, j; - sband = local->hw.wiphy->bands[band]; + u32 supp_rates, rate_flags; + int i, j, shift; + sband = sdata->local->hw.wiphy->bands[band]; + + rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); + shift = ieee80211_vif_get_shift(&sdata->vif); if (WARN_ON(!sband)) return 1; @@ -1394,7 +1417,15 @@ u32 ieee80211_sta_get_rates(struct ieee80211_local *local, continue; for (j = 0; j < num_rates; j++) { - if (bitrates[j].bitrate == own_rate) { + int brate; + if ((rate_flags & sband->bitrates[j].flags) + != rate_flags) + continue; + + brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, + 1 << shift); + + if (brate == own_rate) { supp_rates |= BIT(j); if (basic_rates && is_basic) *basic_rates |= BIT(j); @@ -2017,18 +2048,56 @@ void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan, cfg80211_chandef_create(chandef, control_chan, channel_type); } +int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, + const struct ieee80211_supported_band *sband, + const u8 *srates, int srates_len, u32 *rates) +{ + u32 rate_flags = ieee80211_chandef_rate_flags(chandef); + int shift = ieee80211_chandef_get_shift(chandef); + struct ieee80211_rate *br; + int brate, rate, i, j, count = 0; + + *rates = 0; + + for (i = 0; i < srates_len; i++) { + rate = srates[i] & 0x7f; + + for (j = 0; j < sband->n_bitrates; j++) { + br = &sband->bitrates[j]; + if ((rate_flags & br->flags) != rate_flags) + continue; + + brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); + if (brate == rate) { + *rates |= BIT(j); + count++; + break; + } + } + } + return count; +} + int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, bool need_basic, enum ieee80211_band band) { struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; - int rate; + int rate, shift; u8 i, rates, *pos; u32 basic_rates = sdata->vif.bss_conf.basic_rates; + u32 rate_flags; + shift = ieee80211_vif_get_shift(&sdata->vif); + rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); sband = local->hw.wiphy->bands[band]; - rates = sband->n_bitrates; + rates = 0; + for (i = 0; i < sband->n_bitrates; i++) { + if ((rate_flags & sband->bitrates[i].flags) != rate_flags) + continue; + rates++; + } if (rates > 8) rates = 8; @@ -2040,10 +2109,15 @@ int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, *pos++ = rates; for (i = 0; i < rates; i++) { u8 basic = 0; + if ((rate_flags & sband->bitrates[i].flags) != rate_flags) + continue; + if (need_basic && basic_rates & BIT(i)) basic = 0x80; rate = sband->bitrates[i].bitrate; - *pos++ = basic | (u8) (rate / 5); + rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, + 5 * (1 << shift)); + *pos++ = basic | (u8) rate; } return 0; @@ -2055,12 +2129,22 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; - int rate; + int rate, skip, shift; u8 i, exrates, *pos; u32 basic_rates = sdata->vif.bss_conf.basic_rates; + u32 rate_flags; + + rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); + shift = ieee80211_vif_get_shift(&sdata->vif); sband = local->hw.wiphy->bands[band]; - exrates = sband->n_bitrates; + exrates = 0; + for (i = 0; i < sband->n_bitrates; i++) { + if ((rate_flags & sband->bitrates[i].flags) != rate_flags) + continue; + exrates++; + } + if (exrates > 8) exrates -= 8; else @@ -2073,12 +2157,19 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, pos = skb_put(skb, exrates + 2); *pos++ = WLAN_EID_EXT_SUPP_RATES; *pos++ = exrates; + skip = 0; for (i = 8; i < sband->n_bitrates; i++) { u8 basic = 0; + if ((rate_flags & sband->bitrates[i].flags) + != rate_flags) + continue; + if (skip++ < 8) + continue; if (need_basic && basic_rates & BIT(i)) basic = 0x80; - rate = sband->bitrates[i].bitrate; - *pos++ = basic | (u8) (rate / 5); + rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, + 5 * (1 << shift)); + *pos++ = basic | (u8) rate; } } return 0; @@ -2162,9 +2253,17 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, ri.flags |= RATE_INFO_FLAGS_SHORT_GI; } else { struct ieee80211_supported_band *sband; + int shift = 0; + int bitrate; + + if (status->flag & RX_FLAG_10MHZ) + shift = 1; + if (status->flag & RX_FLAG_5MHZ) + shift = 2; sband = local->hw.wiphy->bands[status->band]; - ri.legacy = sband->bitrates[status->rate_idx].bitrate; + bitrate = sband->bitrates[status->rate_idx].bitrate; + ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); } rate = cfg80211_calculate_bitrate(&ri); |