diff options
51 files changed, 3855 insertions, 3328 deletions
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 245b730..57d7cc8 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -224,7 +224,7 @@ static void setup_ht_cap(struct ieee80211_ht_info *ht_info) ht_info->ht_supported = 1; ht_info->cap = (u16)IEEE80211_HT_CAP_SUP_WIDTH - |(u16)IEEE80211_HT_CAP_MIMO_PS + |(u16)IEEE80211_HT_CAP_SM_PS |(u16)IEEE80211_HT_CAP_SGI_40 |(u16)IEEE80211_HT_CAP_DSSSCCK40; diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index f9c8161..07d2825 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -585,8 +585,6 @@ enum { struct b43_qos_params { /* The QOS parameters */ struct ieee80211_tx_queue_params p; - /* Does this need to get uploaded to hardware? */ - bool need_hw_update; }; struct b43_wldev; @@ -648,11 +646,8 @@ struct b43_wl { bool beacon_templates_virgin; /* Never wrote the templates? */ struct work_struct beacon_update_trigger; - /* The current QOS parameters for the 4 queues. - * This is protected by the irq_lock. */ + /* The current QOS parameters for the 4 queues. */ struct b43_qos_params qos_params[4]; - /* Workqueue for updating QOS parameters in hardware. */ - struct work_struct qos_update_work; /* Work for adjustment of the transmission power. * This is scheduled when we determine that the actual TX output diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index c836bece..d4a356b 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -3059,36 +3059,31 @@ static void b43_qos_params_upload(struct b43_wldev *dev, } } -/* Update the QOS parameters in hardware. */ -static void b43_qos_update(struct b43_wldev *dev) +/* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */ +static const u16 b43_qos_shm_offsets[] = { + /* [mac80211-queue-nr] = SHM_OFFSET, */ + [0] = B43_QOS_VOICE, + [1] = B43_QOS_VIDEO, + [2] = B43_QOS_BESTEFFORT, + [3] = B43_QOS_BACKGROUND, +}; + +/* Update all QOS parameters in hardware. */ +static void b43_qos_upload_all(struct b43_wldev *dev) { struct b43_wl *wl = dev->wl; struct b43_qos_params *params; - unsigned long flags; unsigned int i; - /* Mapping of mac80211 queues to b43 SHM offsets. */ - static const u16 qos_shm_offsets[] = { - [0] = B43_QOS_VOICE, - [1] = B43_QOS_VIDEO, - [2] = B43_QOS_BESTEFFORT, - [3] = B43_QOS_BACKGROUND, - }; - BUILD_BUG_ON(ARRAY_SIZE(qos_shm_offsets) != ARRAY_SIZE(wl->qos_params)); + BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != + ARRAY_SIZE(wl->qos_params)); b43_mac_suspend(dev); - spin_lock_irqsave(&wl->irq_lock, flags); - for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { params = &(wl->qos_params[i]); - if (params->need_hw_update) { - b43_qos_params_upload(dev, &(params->p), - qos_shm_offsets[i]); - params->need_hw_update = 0; - } + b43_qos_params_upload(dev, &(params->p), + b43_qos_shm_offsets[i]); } - - spin_unlock_irqrestore(&wl->irq_lock, flags); b43_mac_enable(dev); } @@ -3097,25 +3092,50 @@ static void b43_qos_clear(struct b43_wl *wl) struct b43_qos_params *params; unsigned int i; + /* Initialize QoS parameters to sane defaults. */ + + BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != + ARRAY_SIZE(wl->qos_params)); + for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { params = &(wl->qos_params[i]); - memset(&(params->p), 0, sizeof(params->p)); - params->p.aifs = -1; - params->need_hw_update = 1; + switch (b43_qos_shm_offsets[i]) { + case B43_QOS_VOICE: + params->p.txop = 0; + params->p.aifs = 2; + params->p.cw_min = 0x0001; + params->p.cw_max = 0x0001; + break; + case B43_QOS_VIDEO: + params->p.txop = 0; + params->p.aifs = 2; + params->p.cw_min = 0x0001; + params->p.cw_max = 0x0001; + break; + case B43_QOS_BESTEFFORT: + params->p.txop = 0; + params->p.aifs = 3; + params->p.cw_min = 0x0001; + params->p.cw_max = 0x03FF; + break; + case B43_QOS_BACKGROUND: + params->p.txop = 0; + params->p.aifs = 7; + params->p.cw_min = 0x0001; + params->p.cw_max = 0x03FF; + break; + default: + B43_WARN_ON(1); + } } } /* Initialize the core's QOS capabilities */ static void b43_qos_init(struct b43_wldev *dev) { - struct b43_wl *wl = dev->wl; - unsigned int i; - /* Upload the current QOS parameters. */ - for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) - wl->qos_params[i].need_hw_update = 1; - b43_qos_update(dev); + b43_qos_upload_all(dev); /* Enable QOS support. */ b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF); @@ -3124,25 +3144,13 @@ static void b43_qos_init(struct b43_wldev *dev) | B43_MMIO_IFSCTL_USE_EDCF); } -static void b43_qos_update_work(struct work_struct *work) -{ - struct b43_wl *wl = container_of(work, struct b43_wl, qos_update_work); - struct b43_wldev *dev; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) - b43_qos_update(dev); - mutex_unlock(&wl->mutex); -} - static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue, const struct ieee80211_tx_queue_params *params) { struct b43_wl *wl = hw_to_b43_wl(hw); - unsigned long flags; + struct b43_wldev *dev; unsigned int queue = (unsigned int)_queue; - struct b43_qos_params *p; + int err = -ENODEV; if (queue >= ARRAY_SIZE(wl->qos_params)) { /* Queue not available or don't support setting @@ -3150,16 +3158,25 @@ static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue, * confuse mac80211. */ return 0; } + BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != + ARRAY_SIZE(wl->qos_params)); - spin_lock_irqsave(&wl->irq_lock, flags); - p = &(wl->qos_params[queue]); - memcpy(&(p->p), params, sizeof(p->p)); - p->need_hw_update = 1; - spin_unlock_irqrestore(&wl->irq_lock, flags); + mutex_lock(&wl->mutex); + dev = wl->current_dev; + if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) + goto out_unlock; - queue_work(hw->workqueue, &wl->qos_update_work); + memcpy(&(wl->qos_params[queue].p), params, sizeof(*params)); + b43_mac_suspend(dev); + b43_qos_params_upload(dev, &(wl->qos_params[queue].p), + b43_qos_shm_offsets[queue]); + b43_mac_enable(dev); + err = 0; - return 0; +out_unlock: + mutex_unlock(&wl->mutex); + + return err; } static int b43_op_get_tx_stats(struct ieee80211_hw *hw, @@ -4186,7 +4203,6 @@ static void b43_op_stop(struct ieee80211_hw *hw) struct b43_wldev *dev = wl->current_dev; b43_rfkill_exit(dev); - cancel_work_sync(&(wl->qos_update_work)); cancel_work_sync(&(wl->beacon_update_trigger)); mutex_lock(&wl->mutex); @@ -4585,7 +4601,6 @@ static int b43_wireless_init(struct ssb_device *dev) spin_lock_init(&wl->shm_lock); mutex_init(&wl->mutex); INIT_LIST_HEAD(&wl->devlist); - INIT_WORK(&wl->qos_update_work, b43_qos_update_work); INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work); INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work); diff --git a/drivers/net/wireless/b43/phy_g.c b/drivers/net/wireless/b43/phy_g.c index e8c012c..232181f 100644 --- a/drivers/net/wireless/b43/phy_g.c +++ b/drivers/net/wireless/b43/phy_g.c @@ -386,7 +386,6 @@ static void b43_set_original_gains(struct b43_wldev *dev) void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val) { b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset); - mmiowb(); b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val); } diff --git a/drivers/net/wireless/b43legacy/phy.c b/drivers/net/wireless/b43legacy/phy.c index 768cccb..bed67a5 100644 --- a/drivers/net/wireless/b43legacy/phy.c +++ b/drivers/net/wireless/b43legacy/phy.c @@ -595,12 +595,14 @@ static void b43legacy_phy_initb5(struct b43legacy_wldev *dev) 0x0035) & 0xFFC0) | 0x0064); b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev, 0x005D) & 0xFF80) | 0x000A); + b43legacy_phy_write(dev, 0x5B, 0x0000); + b43legacy_phy_write(dev, 0x5C, 0x0000); } if (dev->bad_frames_preempt) b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD, b43legacy_phy_read(dev, - B43legacy_PHY_RADIO_BITFIELD) | (1 << 11)); + B43legacy_PHY_RADIO_BITFIELD) | (1 << 12)); if (phy->analog == 1) { b43legacy_phy_write(dev, 0x0026, 0xCE00); @@ -753,7 +755,7 @@ static void b43legacy_phy_initb6(struct b43legacy_wldev *dev) b43legacy_radio_write16(dev, 0x0050, 0x0020); } if (phy->radio_rev <= 2) { - b43legacy_radio_write16(dev, 0x007C, 0x0020); + b43legacy_radio_write16(dev, 0x0050, 0x0020); b43legacy_radio_write16(dev, 0x005A, 0x0070); b43legacy_radio_write16(dev, 0x005B, 0x007B); b43legacy_radio_write16(dev, 0x005C, 0x00B0); @@ -771,7 +773,7 @@ static void b43legacy_phy_initb6(struct b43legacy_wldev *dev) b43legacy_phy_write(dev, 0x002A, 0x8AC0); b43legacy_phy_write(dev, 0x0038, 0x0668); b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF); - if (phy->radio_rev <= 5) + if (phy->radio_rev == 4 || phy->radio_rev == 5) b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev, 0x005D) & 0xFF80) | 0x0003); if (phy->radio_rev <= 2) @@ -1010,7 +1012,7 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev) b43legacy_phy_initb5(dev); else b43legacy_phy_initb6(dev); - if (phy->rev >= 2 || phy->gmode) + if (phy->rev >= 2 && phy->gmode) b43legacy_phy_inita(dev); if (phy->rev >= 2) { @@ -1025,18 +1027,22 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev) b43legacy_phy_write(dev, 0x0811, 0x0400); b43legacy_phy_write(dev, 0x0015, 0x00C0); } - if (phy->rev >= 2 || phy->gmode) { + if (phy->gmode) { tmp = b43legacy_phy_read(dev, 0x0400) & 0xFF; - if (tmp == 3 || tmp == 5) { + if (tmp == 3) { + b43legacy_phy_write(dev, 0x04C2, 0x1816); + b43legacy_phy_write(dev, 0x04C3, 0x8606); + } + if (tmp == 4 || tmp == 5) { b43legacy_phy_write(dev, 0x04C2, 0x1816); b43legacy_phy_write(dev, 0x04C3, 0x8006); - if (tmp == 5) - b43legacy_phy_write(dev, 0x04CC, - (b43legacy_phy_read(dev, - 0x04CC) & 0x00FF) | - 0x1F00); + b43legacy_phy_write(dev, 0x04CC, + (b43legacy_phy_read(dev, + 0x04CC) & 0x00FF) | + 0x1F00); } - b43legacy_phy_write(dev, 0x047E, 0x0078); + if (phy->rev >= 2) + b43legacy_phy_write(dev, 0x047E, 0x0078); } if (phy->radio_rev == 8) { b43legacy_phy_write(dev, 0x0801, b43legacy_phy_read(dev, 0x0801) @@ -1078,7 +1084,7 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev) else b43legacy_phy_write(dev, 0x002F, 0x0202); } - if (phy->gmode || phy->rev >= 2) { + if (phy->gmode) { b43legacy_phy_lo_adjust(dev, 0); b43legacy_phy_write(dev, 0x080F, 0x8078); } diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c index c5ca72aa..6835064 100644 --- a/drivers/net/wireless/b43legacy/xmit.c +++ b/drivers/net/wireless/b43legacy/xmit.c @@ -624,7 +624,7 @@ void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev, tmp = hw->count; status.frame_count = (tmp >> 4); status.rts_count = (tmp & 0x0F); - tmp = hw->flags; + tmp = hw->flags << 1; status.supp_reason = ((tmp & 0x1C) >> 2); status.pm_indicated = !!(tmp & 0x80); status.intermediate = !!(tmp & 0x40); diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 1377c81..3d100e8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -681,19 +681,7 @@ static void iwl3945_rx_reply_rx(struct iwl3945_priv *priv, priv->last_rx_noise = rx_status.noise; } - if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { - iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status); - return; - } - - switch (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FTYPE) { - case IEEE80211_FTYPE_MGMT: - case IEEE80211_FTYPE_DATA: - /* fall through */ - default: - iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status); - break; - } + iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status); } int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *ptr, diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index d9c4fdb..9838de5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -1607,8 +1607,8 @@ static int iwl4965_send_rxon_assoc(struct iwl_priv *priv) return ret; } - -int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) +#ifdef IEEE80211_CONF_CHANNEL_SWITCH +static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) { int rc; u8 band = 0; @@ -1648,6 +1648,7 @@ int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) rc = iwl_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd); return rc; } +#endif static int iwl4965_shared_mem_rx_idx(struct iwl_priv *priv) { diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index 98f2c84..c293e5b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -436,7 +436,7 @@ static int rs_collect_tx_data(struct iwl_rate_scale_data *windows, /* Shift bitmap by one frame (throw away oldest history), * OR in "1", and increment "success" if this * frame was successful. */ - window->data <<= 1;; + window->data <<= 1; if (successes > 0) { window->success_counter++; window->data |= 0x1; @@ -1128,6 +1128,7 @@ static s32 rs_get_best_rate(struct iwl_priv *priv, /* Higher rate not available, use the original */ } else { + new_rate = rate; break; } } @@ -1153,8 +1154,8 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv, !sta->ht_info.ht_supported) return -1; - if (((sta->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS) >> 2) - == IWL_MIMO_PS_STATIC) + if (((sta->ht_info.cap & IEEE80211_HT_CAP_SM_PS) >> 2) + == WLAN_HT_CAP_SM_PS_STATIC) return -1; /* Need both Tx chains/antennas to support MIMO */ @@ -1281,15 +1282,23 @@ static int rs_move_legacy_other(struct iwl_priv *priv, (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); u8 start_action = tbl->action; u8 valid_tx_ant = priv->hw_params.valid_tx_ant; + u8 tx_chains_num = priv->hw_params.tx_chains_num; int ret = 0; for (; ;) { switch (tbl->action) { - case IWL_LEGACY_SWITCH_ANTENNA: + case IWL_LEGACY_SWITCH_ANTENNA1: + case IWL_LEGACY_SWITCH_ANTENNA2: IWL_DEBUG_RATE("LQ: Legacy toggle Antenna\n"); lq_sta->action_counter++; + if ((tbl->action == IWL_LEGACY_SWITCH_ANTENNA1 && + tx_chains_num <= 1) || + (tbl->action == IWL_LEGACY_SWITCH_ANTENNA2 && + tx_chains_num <= 2)) + break; + /* Don't change antenna if success has been great */ if (window->success_ratio >= IWL_RS_GOOD_RATIO) break; @@ -1299,7 +1308,7 @@ static int rs_move_legacy_other(struct iwl_priv *priv, if (rs_toggle_antenna(valid_tx_ant, &search_tbl->current_rate, search_tbl)) { - lq_sta->search_better_tbl = 1; + rs_set_expected_tpt_table(lq_sta, search_tbl); goto out; } break; @@ -1312,43 +1321,54 @@ static int rs_move_legacy_other(struct iwl_priv *priv, ret = rs_switch_to_siso(priv, lq_sta, conf, sta, search_tbl, index); if (!ret) { - lq_sta->search_better_tbl = 1; lq_sta->action_counter = 0; goto out; } break; - case IWL_LEGACY_SWITCH_MIMO2: + case IWL_LEGACY_SWITCH_MIMO2_AB: + case IWL_LEGACY_SWITCH_MIMO2_AC: + case IWL_LEGACY_SWITCH_MIMO2_BC: IWL_DEBUG_RATE("LQ: Legacy switch to MIMO2\n"); /* Set up search table to try MIMO */ memcpy(search_tbl, tbl, sz); search_tbl->is_SGI = 0; - search_tbl->ant_type = ANT_AB;/*FIXME:RS*/ - /*FIXME:RS:need to check ant validity*/ + + if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AB) + search_tbl->ant_type = ANT_AB; + else if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AC) + search_tbl->ant_type = ANT_AC; + else + search_tbl->ant_type = ANT_BC; + + if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type)) + break; + ret = rs_switch_to_mimo2(priv, lq_sta, conf, sta, search_tbl, index); if (!ret) { - lq_sta->search_better_tbl = 1; lq_sta->action_counter = 0; goto out; } break; } tbl->action++; - if (tbl->action > IWL_LEGACY_SWITCH_MIMO2) - tbl->action = IWL_LEGACY_SWITCH_ANTENNA; + if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC) + tbl->action = IWL_LEGACY_SWITCH_ANTENNA1; if (tbl->action == start_action) break; } + search_tbl->lq_type = LQ_NONE; return 0; - out: +out: + lq_sta->search_better_tbl = 1; tbl->action++; - if (tbl->action > IWL_LEGACY_SWITCH_MIMO2) - tbl->action = IWL_LEGACY_SWITCH_ANTENNA; + if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC) + tbl->action = IWL_LEGACY_SWITCH_ANTENNA1; return 0; } @@ -1370,34 +1390,51 @@ static int rs_move_siso_to_other(struct iwl_priv *priv, (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); u8 start_action = tbl->action; u8 valid_tx_ant = priv->hw_params.valid_tx_ant; + u8 tx_chains_num = priv->hw_params.tx_chains_num; int ret; for (;;) { lq_sta->action_counter++; switch (tbl->action) { - case IWL_SISO_SWITCH_ANTENNA: + case IWL_SISO_SWITCH_ANTENNA1: + case IWL_SISO_SWITCH_ANTENNA2: IWL_DEBUG_RATE("LQ: SISO toggle Antenna\n"); + + if ((tbl->action == IWL_SISO_SWITCH_ANTENNA1 && + tx_chains_num <= 1) || + (tbl->action == IWL_SISO_SWITCH_ANTENNA2 && + tx_chains_num <= 2)) + break; + if (window->success_ratio >= IWL_RS_GOOD_RATIO) break; memcpy(search_tbl, tbl, sz); if (rs_toggle_antenna(valid_tx_ant, - &search_tbl->current_rate, search_tbl)) { - lq_sta->search_better_tbl = 1; + &search_tbl->current_rate, search_tbl)) goto out; - } break; - case IWL_SISO_SWITCH_MIMO2: + case IWL_SISO_SWITCH_MIMO2_AB: + case IWL_SISO_SWITCH_MIMO2_AC: + case IWL_SISO_SWITCH_MIMO2_BC: IWL_DEBUG_RATE("LQ: SISO switch to MIMO2\n"); memcpy(search_tbl, tbl, sz); search_tbl->is_SGI = 0; - search_tbl->ant_type = ANT_AB; /*FIXME:RS*/ + + if (tbl->action == IWL_SISO_SWITCH_MIMO2_AB) + search_tbl->ant_type = ANT_AB; + else if (tbl->action == IWL_SISO_SWITCH_MIMO2_AC) + search_tbl->ant_type = ANT_AC; + else + search_tbl->ant_type = ANT_BC; + + if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type)) + break; + ret = rs_switch_to_mimo2(priv, lq_sta, conf, sta, search_tbl, index); - if (!ret) { - lq_sta->search_better_tbl = 1; + if (!ret) goto out; - } break; case IWL_SISO_SWITCH_GI: if (!tbl->is_fat && @@ -1427,22 +1464,23 @@ static int rs_move_siso_to_other(struct iwl_priv *priv, } search_tbl->current_rate = rate_n_flags_from_tbl( search_tbl, index, is_green); - lq_sta->search_better_tbl = 1; goto out; } tbl->action++; if (tbl->action > IWL_SISO_SWITCH_GI) - tbl->action = IWL_SISO_SWITCH_ANTENNA; + tbl->action = IWL_SISO_SWITCH_ANTENNA1; if (tbl->action == start_action) break; } + search_tbl->lq_type = LQ_NONE; return 0; out: + lq_sta->search_better_tbl = 1; tbl->action++; if (tbl->action > IWL_SISO_SWITCH_GI) - tbl->action = IWL_SISO_SWITCH_ANTENNA; + tbl->action = IWL_SISO_SWITCH_ANTENNA1; return 0; } @@ -1458,37 +1496,58 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv, struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); struct iwl_scale_tbl_info *search_tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); + struct iwl_rate_scale_data *window = &(tbl->win[index]); u32 sz = (sizeof(struct iwl_scale_tbl_info) - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); u8 start_action = tbl->action; - /*u8 valid_tx_ant = priv->hw_params.valid_tx_ant;*/ + u8 valid_tx_ant = priv->hw_params.valid_tx_ant; + u8 tx_chains_num = priv->hw_params.tx_chains_num; int ret; for (;;) { lq_sta->action_counter++; switch (tbl->action) { - case IWL_MIMO_SWITCH_ANTENNA_A: - case IWL_MIMO_SWITCH_ANTENNA_B: + case IWL_MIMO2_SWITCH_ANTENNA1: + case IWL_MIMO2_SWITCH_ANTENNA2: + IWL_DEBUG_RATE("LQ: MIMO toggle Antennas\n"); + + if (tx_chains_num <= 2) + break; + + if (window->success_ratio >= IWL_RS_GOOD_RATIO) + break; + + memcpy(search_tbl, tbl, sz); + if (rs_toggle_antenna(valid_tx_ant, + &search_tbl->current_rate, search_tbl)) + goto out; + break; + case IWL_MIMO2_SWITCH_SISO_A: + case IWL_MIMO2_SWITCH_SISO_B: + case IWL_MIMO2_SWITCH_SISO_C: IWL_DEBUG_RATE("LQ: MIMO2 switch to SISO\n"); /* Set up new search table for SISO */ memcpy(search_tbl, tbl, sz); - /*FIXME:RS:need to check ant validity + C*/ - if (tbl->action == IWL_MIMO_SWITCH_ANTENNA_A) + if (tbl->action == IWL_MIMO2_SWITCH_SISO_A) search_tbl->ant_type = ANT_A; - else + else if (tbl->action == IWL_MIMO2_SWITCH_SISO_B) search_tbl->ant_type = ANT_B; + else + search_tbl->ant_type = ANT_C; + + if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type)) + break; ret = rs_switch_to_siso(priv, lq_sta, conf, sta, search_tbl, index); - if (!ret) { - lq_sta->search_better_tbl = 1; + if (!ret) goto out; - } + break; - case IWL_MIMO_SWITCH_GI: + case IWL_MIMO2_SWITCH_GI: if (!tbl->is_fat && !(priv->current_ht_config.sgf & HT_SHORT_GI_20MHZ)) @@ -1517,23 +1576,23 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv, } search_tbl->current_rate = rate_n_flags_from_tbl( search_tbl, index, is_green); - lq_sta->search_better_tbl = 1; goto out; } tbl->action++; - if (tbl->action > IWL_MIMO_SWITCH_GI) - tbl->action = IWL_MIMO_SWITCH_ANTENNA_A; + if (tbl->action > IWL_MIMO2_SWITCH_GI) + tbl->action = IWL_MIMO2_SWITCH_ANTENNA1; if (tbl->action == start_action) break; } - + search_tbl->lq_type = LQ_NONE; return 0; out: + lq_sta->search_better_tbl = 1; tbl->action++; - if (tbl->action > IWL_MIMO_SWITCH_GI) - tbl->action = IWL_MIMO_SWITCH_ANTENNA_A; + if (tbl->action > IWL_MIMO2_SWITCH_GI) + tbl->action = IWL_MIMO2_SWITCH_ANTENNA1; return 0; } @@ -1748,19 +1807,13 @@ static void rs_rate_scale_perform(struct iwl_priv *priv, rs_stay_in_table(lq_sta); goto out; + } /* Else we have enough samples; calculate estimate of * actual average throughput */ - } else { - /*FIXME:RS remove this else if we don't get this error*/ - if (window->average_tpt != ((window->success_ratio * - tbl->expected_tpt[index] + 64) / 128)) { - IWL_ERROR("expected_tpt should have been calculated" - " by now\n"); - window->average_tpt = ((window->success_ratio * - tbl->expected_tpt[index] + 64) / 128); - } - } + + BUG_ON(window->average_tpt != ((window->success_ratio * + tbl->expected_tpt[index] + 64) / 128)); /* If we are searching for better modulation mode, check success. */ if (lq_sta->search_better_tbl) { @@ -1770,7 +1823,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv, * continuing to use the setup that we've been trying. */ if (window->average_tpt > lq_sta->last_tpt) { - IWL_DEBUG_RATE("LQ: SWITCHING TO CURRENT TABLE " + IWL_DEBUG_RATE("LQ: SWITCHING TO NEW TABLE " "suc=%d cur-tpt=%d old-tpt=%d\n", window->success_ratio, window->average_tpt, @@ -2183,7 +2236,7 @@ static void rs_rate_init(void *priv_rate, void *priv_sta, for (i = 0; i < IWL_RATE_COUNT; i++) rs_rate_scale_clear_window(&lq_sta->lq_info[j].win[i]); - IWL_DEBUG_RATE("LQ: *** rate scale global init ***\n"); + IWL_DEBUG_RATE("LQ: *** rate scale station global init ***\n"); /* TODO: what is a good starting rate for STA? About middle? Maybe not * the lowest or the highest rate.. Could consider using RSSI from * previous packets? Need to have IEEE 802.1X auth succeed immediately diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h index 84d4d1e..d148d73 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h @@ -206,21 +206,28 @@ enum { #define IWL_RATE_DECREASE_TH 1920 /* 15% */ /* possible actions when in legacy mode */ -#define IWL_LEGACY_SWITCH_ANTENNA 0 -#define IWL_LEGACY_SWITCH_SISO 1 -#define IWL_LEGACY_SWITCH_MIMO2 2 +#define IWL_LEGACY_SWITCH_ANTENNA1 0 +#define IWL_LEGACY_SWITCH_ANTENNA2 1 +#define IWL_LEGACY_SWITCH_SISO 2 +#define IWL_LEGACY_SWITCH_MIMO2_AB 3 +#define IWL_LEGACY_SWITCH_MIMO2_AC 4 +#define IWL_LEGACY_SWITCH_MIMO2_BC 5 /* possible actions when in siso mode */ -#define IWL_SISO_SWITCH_ANTENNA 0 -#define IWL_SISO_SWITCH_MIMO2 1 -#define IWL_SISO_SWITCH_GI 2 +#define IWL_SISO_SWITCH_ANTENNA1 0 +#define IWL_SISO_SWITCH_ANTENNA2 1 +#define IWL_SISO_SWITCH_MIMO2_AB 2 +#define IWL_SISO_SWITCH_MIMO2_AC 3 +#define IWL_SISO_SWITCH_MIMO2_BC 4 +#define IWL_SISO_SWITCH_GI 5 /* possible actions when in mimo mode */ -#define IWL_MIMO_SWITCH_ANTENNA_A 0 -#define IWL_MIMO_SWITCH_ANTENNA_B 1 -#define IWL_MIMO_SWITCH_GI 2 - -/*FIXME:RS:separate MIMO2/3 transitions*/ +#define IWL_MIMO2_SWITCH_ANTENNA1 0 +#define IWL_MIMO2_SWITCH_ANTENNA2 1 +#define IWL_MIMO2_SWITCH_SISO_A 2 +#define IWL_MIMO2_SWITCH_SISO_B 3 +#define IWL_MIMO2_SWITCH_SISO_C 4 +#define IWL_MIMO2_SWITCH_GI 5 /*FIXME:RS:add posible acctions for MIMO3*/ diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 1547122..31ea288 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -485,7 +485,7 @@ static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv) return IWL_RATE_6M_PLCP; } -unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv, +static unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv, struct iwl_frame *frame, u8 rate) { struct iwl_tx_beacon_cmd *tx_beacon_cmd; @@ -564,8 +564,6 @@ static void iwl4965_ht_conf(struct iwl_priv *priv, if (!iwl_conf->is_ht) return; - priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); - if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) iwl_conf->sgf |= HT_SHORT_GI_20MHZ; if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) @@ -586,6 +584,8 @@ static void iwl4965_ht_conf(struct iwl_priv *priv, iwl_conf->supported_chan_width = 0; } + iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2); + memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16); iwl_conf->control_channel = ht_bss_conf->primary_channel; @@ -2558,7 +2558,11 @@ static void iwl4965_post_associate(struct iwl_priv *priv) iwl_activate_qos(priv, 0); spin_unlock_irqrestore(&priv->lock, flags); - iwl_power_enable_management(priv); + /* the chain noise calibration will enabled PM upon completion + * If chain noise has already been run, then we need to enable + * power management here */ + if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) + iwl_power_enable_management(priv); /* Enable Rx differential gain and sensitivity calibrations */ iwl_chain_noise_reset(priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c index 35fb4a4..72fbf47 100644 --- a/drivers/net/wireless/iwlwifi/iwl-calib.c +++ b/drivers/net/wireless/iwlwifi/iwl-calib.c @@ -808,13 +808,11 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv, } } + /* Save for use within RXON, TX, SCAN commands, etc. */ + priv->chain_noise_data.active_chains = active_chains; IWL_DEBUG_CALIB("active_chains (bitwise) = 0x%x\n", active_chains); - /* Save for use within RXON, TX, SCAN commands, etc. */ - /*priv->valid_antenna = active_chains;*/ - /*FIXME: should be reflected in RX chains in RXON */ - /* Analyze noise for rx balance */ average_noise[0] = ((data->chain_noise_a)/CAL_NUM_OF_BEACONS); average_noise[1] = ((data->chain_noise_b)/CAL_NUM_OF_BEACONS); @@ -839,6 +837,15 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv, priv->cfg->ops->utils->gain_computation(priv, average_noise, min_average_noise_antenna_i, min_average_noise); + + /* Some power changes may have been made during the calibration. + * Update and commit the RXON + */ + if (priv->cfg->ops->lib->update_chain_flags) + priv->cfg->ops->lib->update_chain_flags(priv); + + data->state = IWL_CHAIN_NOISE_DONE; + iwl_power_enable_management(priv); } EXPORT_SYMBOL(iwl_chain_noise_calibration); diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index a0b86af..36d08b0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -399,8 +399,8 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD; ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20; - ht_info->cap |= (u16)(IEEE80211_HT_CAP_MIMO_PS & - (IWL_MIMO_PS_NONE << 2)); + ht_info->cap |= (u16)(IEEE80211_HT_CAP_SM_PS & + (WLAN_HT_CAP_SM_PS_DISABLED << 2)); max_bit_rate = MAX_BIT_RATE_20_MHZ; if (priv->hw_params.fat_channel & BIT(band)) { @@ -709,7 +709,8 @@ static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); /* # of Rx chains to use when expecting MIMO. */ - if (is_single || (!is_cam && (priv->ps_mode == IWL_MIMO_PS_STATIC))) + if (is_single || (!is_cam && (priv->current_ht_config.sm_ps == + WLAN_HT_CAP_SM_PS_STATIC))) return 2; else return 3; @@ -720,17 +721,18 @@ static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) int idle_cnt; bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); /* # Rx chains when idling and maybe trying to save power */ - switch (priv->ps_mode) { - case IWL_MIMO_PS_STATIC: - case IWL_MIMO_PS_DYNAMIC: + switch (priv->current_ht_config.sm_ps) { + case WLAN_HT_CAP_SM_PS_STATIC: + case WLAN_HT_CAP_SM_PS_DYNAMIC: idle_cnt = (is_cam) ? 2 : 1; break; - case IWL_MIMO_PS_NONE: + case WLAN_HT_CAP_SM_PS_DISABLED: idle_cnt = (is_cam) ? active_cnt : 1; break; - case IWL_MIMO_PS_INVALID: + case WLAN_HT_CAP_SM_PS_INVALID: default: - IWL_ERROR("invalide mimo ps mode %d\n", priv->ps_mode); + IWL_ERROR("invalide mimo ps mode %d\n", + priv->current_ht_config.sm_ps); WARN_ON(1); idle_cnt = -1; break; @@ -738,6 +740,17 @@ static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) return idle_cnt; } +/* up to 4 chains */ +static u8 iwl_count_chain_bitmap(u32 chain_bitmap) +{ + u8 res; + res = (chain_bitmap & BIT(0)) >> 0; + res += (chain_bitmap & BIT(1)) >> 1; + res += (chain_bitmap & BIT(2)) >> 2; + res += (chain_bitmap & BIT(4)) >> 4; + return res; +} + /** * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image * @@ -748,25 +761,35 @@ void iwl_set_rxon_chain(struct iwl_priv *priv) { bool is_single = is_single_rx_stream(priv); bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); - u8 idle_rx_cnt, active_rx_cnt; + u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; + u32 active_chains; u16 rx_chain; /* Tell uCode which antennas are actually connected. * Before first association, we assume all antennas are connected. * Just after first association, iwl_chain_noise_calibration() * checks which antennas actually *are* connected. */ - rx_chain = priv->hw_params.valid_rx_ant << RXON_RX_CHAIN_VALID_POS; + if (priv->chain_noise_data.active_chains) + active_chains = priv->chain_noise_data.active_chains; + else + active_chains = priv->hw_params.valid_rx_ant; + + rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; /* How many receivers should we use? */ active_rx_cnt = iwl_get_active_rx_chain_count(priv); idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt); - /* correct rx chain count accoridng hw settings */ - if (priv->hw_params.rx_chains_num < active_rx_cnt) - active_rx_cnt = priv->hw_params.rx_chains_num; - if (priv->hw_params.rx_chains_num < idle_rx_cnt) - idle_rx_cnt = priv->hw_params.rx_chains_num; + /* correct rx chain count according hw settings + * and chain noise calibration + */ + valid_rx_cnt = iwl_count_chain_bitmap(active_chains); + if (valid_rx_cnt < active_rx_cnt) + active_rx_cnt = valid_rx_cnt; + + if (valid_rx_cnt < idle_rx_cnt) + idle_rx_cnt = valid_rx_cnt; rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; @@ -778,7 +801,7 @@ void iwl_set_rxon_chain(struct iwl_priv *priv) else priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; - IWL_DEBUG_ASSOC("rx_chain=0x%Xi active=%d idle=%d\n", + IWL_DEBUG_ASSOC("rx_chain=0x%X active=%d idle=%d\n", priv->staging_rxon.rx_chain, active_rx_cnt, idle_rx_cnt); @@ -912,7 +935,7 @@ int iwl_init_drv(struct iwl_priv *priv) priv->iw_mode = IEEE80211_IF_TYPE_STA; priv->use_ant_b_for_management_frame = 1; /* start with ant B */ - priv->ps_mode = IWL_MIMO_PS_NONE; + priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED; /* Choose which receivers/antennas to use */ iwl_set_rxon_chain(priv); @@ -1135,7 +1158,6 @@ int iwl_verify_ucode(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_verify_ucode); - static const char *desc_lookup(int i) { switch (i) { @@ -1216,9 +1238,9 @@ EXPORT_SYMBOL(iwl_dump_nic_error_log); /** * iwl_print_event_log - Dump error event log to syslog * - * NOTE: Must be called with iwl4965_grab_nic_access() already obtained! + * NOTE: Must be called with iwl_grab_nic_access() already obtained! */ -void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, +static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, u32 num_events, u32 mode) { u32 i; @@ -1259,8 +1281,6 @@ void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, } } } -EXPORT_SYMBOL(iwl_print_event_log); - void iwl_dump_nic_event_log(struct iwl_priv *priv) { diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index b5db050..55a4b58 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -184,7 +184,6 @@ struct iwl_cfg { struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg, struct ieee80211_ops *hw_ops); void iwl_hw_detect(struct iwl_priv *priv); - void iwl_clear_stations_table(struct iwl_priv *priv); void iwl_reset_qos(struct iwl_priv *priv); void iwl_set_rxon_chain(struct iwl_priv *priv); @@ -215,7 +214,6 @@ void iwl_rx_replenish(struct iwl_priv *priv); int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq); int iwl_rx_agg_start(struct iwl_priv *priv, const u8 *addr, int tid, u16 ssn); int iwl_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid); -/* FIXME: remove when TX is moved to iwl core */ int iwl_rx_queue_restock(struct iwl_priv *priv); int iwl_rx_queue_space(const struct iwl_rx_queue *q); void iwl_rx_allocate(struct iwl_priv *priv); @@ -234,11 +232,7 @@ void iwl_rx_statistics(struct iwl_priv *priv, ******************************************************/ int iwl_txq_ctx_reset(struct iwl_priv *priv); int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb); -/* FIXME: remove when free Tx is fully merged into iwlcore */ -int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq); void iwl_hw_txq_ctx_free(struct iwl_priv *priv); -int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd, - dma_addr_t addr, u16 len); int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq); int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn); int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid); @@ -253,6 +247,7 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force); * RF -Kill - here and not in iwl-rfkill.h to be available when * RF-kill subsystem is not compiled. ****************************************************/ +void iwl_rf_kill(struct iwl_priv *priv); void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv); int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv); @@ -283,7 +278,6 @@ static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags) void iwl_init_scan_params(struct iwl_priv *priv); int iwl_scan_cancel(struct iwl_priv *priv); int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms); -const char *iwl_escape_essid(const char *essid, u8 essid_len); int iwl_scan_initiate(struct iwl_priv *priv); void iwl_setup_rx_scan_handlers(struct iwl_priv *priv); void iwl_setup_scan_deferred_work(struct iwl_priv *priv); @@ -316,8 +310,6 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); /***************************************************** * Error Handling Debugging ******************************************************/ -void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, - u32 num_events, u32 mode); void iwl_dump_nic_error_log(struct iwl_priv *priv); void iwl_dump_nic_event_log(struct iwl_priv *priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 640ceea..1823687 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -406,6 +406,7 @@ struct iwl_ht_info { /* self configuration data */ u8 is_ht; u8 supported_chan_width; + u8 sm_ps; u8 is_green_field; u8 sgf; /* HT_SHORT_GI_* short guard interval */ u8 max_amsdu_size; @@ -564,50 +565,31 @@ struct iwl_hw_params { #define IWL_RX_STATS(x) (&x->u.rx_frame.stats) #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload) - -/****************************************************************************** - * - * Functions implemented in iwl-base.c which are forward declared here - * for use by iwl-*.c - * - *****************************************************************************/ -struct iwl_addsta_cmd; -extern int iwl_send_add_sta(struct iwl_priv *priv, - struct iwl_addsta_cmd *sta, u8 flags); -u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap, - u8 flags, struct ieee80211_ht_info *ht_info); -extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv, - struct ieee80211_hdr *hdr, - const u8 *dest, int left); -extern void iwl4965_update_chain_flags(struct iwl_priv *priv); -int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src); -extern int iwl4965_set_power(struct iwl_priv *priv, void *cmd); - -extern const u8 iwl_bcast_addr[ETH_ALEN]; - /****************************************************************************** * - * Functions implemented in iwl-[34]*.c which are forward declared here - * for use by iwl-base.c + * Functions implemented in core module which are forward declared here + * for use by iwl-[4-5].c * - * NOTE: The implementation of these functions are hardware specific - * which is why they are in the hardware specific files (vs. iwl-base.c) + * NOTE: The implementation of these functions are not hardware specific + * which is why they are in the core module files. * * Naming convention -- - * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_) - * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW) + * iwl_ <-- Is part of iwlwifi * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) * iwl4965_bg_ <-- Called from work queue context * iwl4965_mac_ <-- mac80211 callback * ****************************************************************************/ +struct iwl_addsta_cmd; +extern int iwl_send_add_sta(struct iwl_priv *priv, + struct iwl_addsta_cmd *sta, u8 flags); +extern u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, + int is_ap, u8 flags, struct ieee80211_ht_info *ht_info); +extern void iwl4965_update_chain_flags(struct iwl_priv *priv); +extern int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src); +extern const u8 iwl_bcast_addr[ETH_ALEN]; extern int iwl_rxq_stop(struct iwl_priv *priv); extern void iwl_txq_ctx_stop(struct iwl_priv *priv); -extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv, - struct iwl_frame *frame, u8 rate); -extern void iwl4965_disable_events(struct iwl_priv *priv); - -extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel); extern int iwl_queue_space(const struct iwl_queue *q); static inline int iwl_queue_used(const struct iwl_queue *q, int i) { @@ -644,11 +626,6 @@ struct iwl_kw { #define IWL_CHANNEL_WIDTH_20MHZ 0 #define IWL_CHANNEL_WIDTH_40MHZ 1 -#define IWL_MIMO_PS_STATIC 0 -#define IWL_MIMO_PS_NONE 3 -#define IWL_MIMO_PS_DYNAMIC 1 -#define IWL_MIMO_PS_INVALID 2 - #define IWL_OPERATION_MODE_AUTO 0 #define IWL_OPERATION_MODE_HT_ONLY 1 #define IWL_OPERATION_MODE_MIXED 2 @@ -703,8 +680,9 @@ enum iwl4965_false_alarm_state { enum iwl4965_chain_noise_state { IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ - IWL_CHAIN_NOISE_ACCUMULATE = 1, - IWL_CHAIN_NOISE_CALIBRATED = 2, + IWL_CHAIN_NOISE_ACCUMULATE, + IWL_CHAIN_NOISE_CALIBRATED, + IWL_CHAIN_NOISE_DONE, }; enum iwl4965_calib_enabled_state { @@ -762,17 +740,18 @@ struct iwl_sensitivity_data { /* Chain noise (differential Rx gain) calib data */ struct iwl_chain_noise_data { - u8 state; - u16 beacon_count; + u32 active_chains; u32 chain_noise_a; u32 chain_noise_b; u32 chain_noise_c; u32 chain_signal_a; u32 chain_signal_b; u32 chain_signal_c; + u16 beacon_count; u8 disconn_array[NUM_RX_CHAINS]; u8 delta_gain_code[NUM_RX_CHAINS]; u8 radio_write; + u8 state; }; #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ @@ -995,7 +974,6 @@ struct iwl_priv { * hardware */ u16 assoc_id; u16 assoc_capability; - u8 ps_mode; struct iwl_qos_info qos_data; diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c index 16f834d..55ec31e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-power.c +++ b/drivers/net/wireless/iwlwifi/iwl-power.c @@ -250,17 +250,26 @@ static int iwl_update_power_command(struct iwl_priv *priv, /* - * calucaute the final power mode index + * compute the final power mode index */ -int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh) +int iwl_power_update_mode(struct iwl_priv *priv, bool force) { struct iwl_power_mgr *setting = &(priv->power_data); int ret = 0; u16 uninitialized_var(final_mode); - /* If on battery, set to 3, - * if plugged into AC power, set to CAM ("continuously aware mode"), - * else user level */ + /* Don't update the RX chain when chain noise calibration is running */ + if (priv->chain_noise_data.state != IWL_CHAIN_NOISE_DONE && + priv->chain_noise_data.state != IWL_CHAIN_NOISE_ALIVE) { + IWL_DEBUG_POWER("Cannot update the power, chain noise " + "calibration running: %d\n", + priv->chain_noise_data.state); + return -EAGAIN; + } + + /* If on battery, set to 3, + * if plugged into AC power, set to CAM ("continuously aware mode"), + * else user level */ switch (setting->system_power_setting) { case IWL_POWER_SYS_AUTO: @@ -285,7 +294,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh) final_mode = IWL_POWER_MODE_CAM; if (!iwl_is_rfkill(priv) && !setting->power_disabled && - ((setting->power_mode != final_mode) || refresh)) { + ((setting->power_mode != final_mode) || force)) { struct iwl_powertable_cmd cmd; if (final_mode != IWL_POWER_MODE_CAM) @@ -359,35 +368,26 @@ EXPORT_SYMBOL(iwl_power_enable_management); /* set user_power_setting */ int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode) { - int ret = 0; - if (mode > IWL_POWER_LIMIT) return -EINVAL; priv->power_data.user_power_setting = mode; - ret = iwl_power_update_mode(priv, 0); - - return ret; + return iwl_power_update_mode(priv, 0); } EXPORT_SYMBOL(iwl_power_set_user_mode); - /* set system_power_setting. This should be set by over all * PM application. */ int iwl_power_set_system_mode(struct iwl_priv *priv, u16 mode) { - int ret = 0; - if (mode > IWL_POWER_LIMIT) return -EINVAL; priv->power_data.system_power_setting = mode; - ret = iwl_power_update_mode(priv, 0); - - return ret; + return iwl_power_update_mode(priv, 0); } EXPORT_SYMBOL(iwl_power_set_system_mode); diff --git a/drivers/net/wireless/iwlwifi/iwl-power.h b/drivers/net/wireless/iwlwifi/iwl-power.h index aa99f36..df484a9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-power.h +++ b/drivers/net/wireless/iwlwifi/iwl-power.h @@ -72,7 +72,7 @@ struct iwl_power_mgr { /* final power level that used to calculate final power command */ u8 power_mode; u8 user_power_setting; /* set by user through mac80211 or sysfs */ - u8 system_power_setting; /* set by kernel syatem tools */ + u8 system_power_setting; /* set by kernel system tools */ u8 critical_power_setting; /* set if driver over heated */ u8 is_battery_active; /* DC/AC power */ u8 power_disabled; /* flag to disable using power saving level */ @@ -80,7 +80,7 @@ struct iwl_power_mgr { void iwl_setup_power_deferred_work(struct iwl_priv *priv); void iwl_power_cancel_timeout(struct iwl_priv *priv); -int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh); +int iwl_power_update_mode(struct iwl_priv *priv, bool force); int iwl_power_disable_management(struct iwl_priv *priv, u32 ms); int iwl_power_enable_management(struct iwl_priv *priv); int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode); diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index 6c8ac3a..d026aaf 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -88,7 +88,7 @@ static int iwl_is_empty_essid(const char *essid, int essid_len) -const char *iwl_escape_essid(const char *essid, u8 essid_len) +static const char *iwl_escape_essid(const char *essid, u8 essid_len) { static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; const char *s = essid; @@ -111,7 +111,6 @@ const char *iwl_escape_essid(const char *essid, u8 essid_len) *d = '\0'; return escaped; } -EXPORT_SYMBOL(iwl_escape_essid); /** * iwl_scan_cancel - Cancel any currently executing HW scan diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index 5b7b05c..a72569f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -191,20 +191,20 @@ static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, if (!sta_ht_inf || !sta_ht_inf->ht_supported) goto done; - mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2; + mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2; sta_flags = priv->stations[index].sta.station_flags; sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); switch (mimo_ps_mode) { - case WLAN_HT_CAP_MIMO_PS_STATIC: + case WLAN_HT_CAP_SM_PS_STATIC: sta_flags |= STA_FLG_MIMO_DIS_MSK; break; - case WLAN_HT_CAP_MIMO_PS_DYNAMIC: + case WLAN_HT_CAP_SM_PS_DYNAMIC: sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK; break; - case WLAN_HT_CAP_MIMO_PS_DISABLED: + case WLAN_HT_CAP_SM_PS_DISABLED: break; default: IWL_WARNING("Invalid MIMO PS mode %d\n", mimo_ps_mode); diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index 9d485aa..9d5bcf4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -63,7 +63,7 @@ static const u16 default_tid_to_tx_fifo[] = { * Does NOT advance any TFD circular buffer read/write indexes * Does NOT free the TFD itself (which is within circular buffer) */ -int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) +static int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) { struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0]; struct iwl_tfd_frame *bd = &bd_tmp[txq->q.read_ptr]; @@ -115,10 +115,8 @@ int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) } return 0; } -EXPORT_SYMBOL(iwl_hw_txq_free_tfd); - -int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr, +static int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr, dma_addr_t addr, u16 len) { int index, is_odd; @@ -151,7 +149,6 @@ int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr, return 0; } -EXPORT_SYMBOL(iwl_hw_txq_attach_buf_to_tfd); /** * iwl_txq_update_write_ptr - Send new write index to hardware @@ -478,7 +475,6 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_hw_txq_ctx_free); - /** * iwl_txq_ctx_reset - Reset TX queue context * Destroys all DMA structures and initialise them again @@ -545,6 +541,7 @@ int iwl_txq_ctx_reset(struct iwl_priv *priv) error_kw: return ret; } + /** * iwl_txq_ctx_stop - Stop all Tx DMA channels, free Tx queue memory */ diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c index 802547e..5fef05f 100644 --- a/drivers/net/wireless/libertas/cmd.c +++ b/drivers/net/wireless/libertas/cmd.c @@ -1971,6 +1971,70 @@ void lbs_ps_confirm_sleep(struct lbs_private *priv) } +/** + * @brief Configures the transmission power control functionality. + * + * @param priv A pointer to struct lbs_private structure + * @param enable Transmission power control enable + * @param p0 Power level when link quality is good (dBm). + * @param p1 Power level when link quality is fair (dBm). + * @param p2 Power level when link quality is poor (dBm). + * @param usesnr Use Signal to Noise Ratio in TPC + * + * @return 0 on success + */ +int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1, + int8_t p2, int usesnr) +{ + struct cmd_ds_802_11_tpc_cfg cmd; + int ret; + + memset(&cmd, 0, sizeof(cmd)); + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(CMD_ACT_SET); + cmd.enable = !!enable; + cmd.usesnr = !!enable; + cmd.P0 = p0; + cmd.P1 = p1; + cmd.P2 = p2; + + ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd); + + return ret; +} + +/** + * @brief Configures the power adaptation settings. + * + * @param priv A pointer to struct lbs_private structure + * @param enable Power adaptation enable + * @param p0 Power level for 1, 2, 5.5 and 11 Mbps (dBm). + * @param p1 Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm). + * @param p2 Power level for 48 and 54 Mbps (dBm). + * + * @return 0 on Success + */ + +int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0, + int8_t p1, int8_t p2) +{ + struct cmd_ds_802_11_pa_cfg cmd; + int ret; + + memset(&cmd, 0, sizeof(cmd)); + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(CMD_ACT_SET); + cmd.enable = !!enable; + cmd.P0 = p0; + cmd.P1 = p1; + cmd.P2 = p2; + + ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd); + + return ret; +} + + static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv, uint16_t command, struct cmd_header *in_cmd, int in_cmd_size, int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *), diff --git a/drivers/net/wireless/libertas/cmd.h b/drivers/net/wireless/libertas/cmd.h index 11ac996..336a181 100644 --- a/drivers/net/wireless/libertas/cmd.h +++ b/drivers/net/wireless/libertas/cmd.h @@ -26,6 +26,12 @@ int __lbs_cmd(struct lbs_private *priv, uint16_t command, int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *), unsigned long callback_arg); +int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0, + int8_t p1, int8_t p2); + +int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1, + int8_t p2, int usesnr); + int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra, struct cmd_header *resp); diff --git a/drivers/net/wireless/libertas/defs.h b/drivers/net/wireless/libertas/defs.h index 4b2428a..c89d7a1 100644 --- a/drivers/net/wireless/libertas/defs.h +++ b/drivers/net/wireless/libertas/defs.h @@ -189,6 +189,15 @@ static inline void lbs_deb_hex(unsigned int grp, const char *prompt, u8 *buf, in #define MRVDRV_CMD_UPLD_RDY 0x0008 #define MRVDRV_CARDEVENT 0x0010 + +/* Automatic TX control default levels */ +#define POW_ADAPT_DEFAULT_P0 13 +#define POW_ADAPT_DEFAULT_P1 15 +#define POW_ADAPT_DEFAULT_P2 18 +#define TPC_DEFAULT_P0 5 +#define TPC_DEFAULT_P1 10 +#define TPC_DEFAULT_P2 13 + /** TxPD status */ /* Station firmware use TxPD status field to report final Tx transmit diff --git a/drivers/net/wireless/libertas/host.h b/drivers/net/wireless/libertas/host.h index da618fc..a916bb9 100644 --- a/drivers/net/wireless/libertas/host.h +++ b/drivers/net/wireless/libertas/host.h @@ -83,6 +83,7 @@ #define CMD_802_11_INACTIVITY_TIMEOUT 0x0067 #define CMD_802_11_SLEEP_PERIOD 0x0068 #define CMD_802_11_TPC_CFG 0x0072 +#define CMD_802_11_PA_CFG 0x0073 #define CMD_802_11_FW_WAKE_METHOD 0x0074 #define CMD_802_11_SUBSCRIBE_EVENT 0x0075 #define CMD_802_11_RATE_ADAPT_RATESET 0x0076 diff --git a/drivers/net/wireless/libertas/hostcmd.h b/drivers/net/wireless/libertas/hostcmd.h index d27c276..630b799 100644 --- a/drivers/net/wireless/libertas/hostcmd.h +++ b/drivers/net/wireless/libertas/hostcmd.h @@ -607,14 +607,28 @@ struct cmd_ds_802_11_eeprom_access { } __attribute__ ((packed)); struct cmd_ds_802_11_tpc_cfg { + struct cmd_header hdr; + __le16 action; - u8 enable; - s8 P0; - s8 P1; - s8 P2; - u8 usesnr; + uint8_t enable; + int8_t P0; + int8_t P1; + int8_t P2; + uint8_t usesnr; } __attribute__ ((packed)); + +struct cmd_ds_802_11_pa_cfg { + struct cmd_header hdr; + + __le16 action; + uint8_t enable; + int8_t P0; + int8_t P1; + int8_t P2; +} __attribute__ ((packed)); + + struct cmd_ds_802_11_led_ctrl { __le16 action; __le16 numled; diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 2436634..73dc8c7 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -1205,7 +1205,13 @@ void lbs_remove_card(struct lbs_private *priv) cancel_delayed_work_sync(&priv->scan_work); cancel_delayed_work_sync(&priv->assoc_work); cancel_work_sync(&priv->mcast_work); + + /* worker thread destruction blocks on the in-flight command which + * should have been cleared already in lbs_stop_card(). + */ + lbs_deb_main("destroying worker thread\n"); destroy_workqueue(priv->work_thread); + lbs_deb_main("done destroying worker thread\n"); if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { priv->psmode = LBS802_11POWERMODECAM; @@ -1323,14 +1329,26 @@ void lbs_stop_card(struct lbs_private *priv) device_remove_file(&dev->dev, &dev_attr_lbs_rtap); } - /* Flush pending command nodes */ + /* Delete the timeout of the currently processing command */ del_timer_sync(&priv->command_timer); + + /* Flush pending command nodes */ spin_lock_irqsave(&priv->driver_lock, flags); + lbs_deb_main("clearing pending commands\n"); list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { cmdnode->result = -ENOENT; cmdnode->cmdwaitqwoken = 1; wake_up_interruptible(&cmdnode->cmdwait_q); } + + /* Flush the command the card is currently processing */ + if (priv->cur_cmd) { + lbs_deb_main("clearing current command\n"); + priv->cur_cmd->result = -ENOENT; + priv->cur_cmd->cmdwaitqwoken = 1; + wake_up_interruptible(&priv->cur_cmd->cmdwait_q); + } + lbs_deb_main("done clearing commands\n"); spin_unlock_irqrestore(&priv->driver_lock, flags); unregister_netdev(dev); diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c index 426f1fe..e8cadad 100644 --- a/drivers/net/wireless/libertas/wext.c +++ b/drivers/net/wireless/libertas/wext.c @@ -1820,7 +1820,21 @@ static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info, } if (vwrq->fixed == 0) { - /* Auto power control */ + /* User requests automatic tx power control, however there are + * many auto tx settings. For now use firmware defaults until + * we come up with a good way to expose these to the user. */ + if (priv->fwrelease < 0x09000000) { + ret = lbs_set_power_adapt_cfg(priv, 1, + POW_ADAPT_DEFAULT_P0, + POW_ADAPT_DEFAULT_P1, + POW_ADAPT_DEFAULT_P2); + if (ret) + goto out; + } + ret = lbs_set_tpc_cfg(priv, 0, TPC_DEFAULT_P0, TPC_DEFAULT_P1, + TPC_DEFAULT_P2, 1); + if (ret) + goto out; dbm = priv->txpower_max; } else { /* Userspace check in iwrange if it should use dBm or mW, @@ -1830,7 +1844,8 @@ static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info, goto out; } - /* Validate requested power level against firmware allowed levels */ + /* Validate requested power level against firmware allowed + * levels */ if (priv->txpower_min && (dbm < priv->txpower_min)) { ret = -EINVAL; goto out; @@ -1840,6 +1855,18 @@ static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info, ret = -EINVAL; goto out; } + if (priv->fwrelease < 0x09000000) { + ret = lbs_set_power_adapt_cfg(priv, 0, + POW_ADAPT_DEFAULT_P0, + POW_ADAPT_DEFAULT_P1, + POW_ADAPT_DEFAULT_P2); + if (ret) + goto out; + } + ret = lbs_set_tpc_cfg(priv, 0, TPC_DEFAULT_P0, TPC_DEFAULT_P1, + TPC_DEFAULT_P2, 1); + if (ret) + goto out; } /* If the radio was off, turn it on */ diff --git a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h index 98d4f8e..1d0704f 100644 --- a/drivers/net/wireless/p54/p54.h +++ b/drivers/net/wireless/p54/p54.h @@ -80,6 +80,7 @@ struct p54_common { struct pda_channel_output_limit *output_limit; unsigned int output_limit_len; struct pda_pa_curve_data *curve_data; + unsigned int filter_flags; u16 rxhw; u8 version; u8 rx_antenna; @@ -87,7 +88,15 @@ struct p54_common { void *cached_vdcf; unsigned int fw_var; unsigned int fw_interface; + unsigned int output_power; + u32 tsf_low32; + u32 tsf_high32; struct ieee80211_tx_queue_stats tx_stats[8]; + struct ieee80211_low_level_stats stats; + struct timer_list stats_timer; + struct completion stats_comp; + void *cached_stats; + int noise; void *eeprom; struct completion eeprom_comp; }; diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c index f96f7c7..da51786 100644 --- a/drivers/net/wireless/p54/p54common.c +++ b/drivers/net/wireless/p54/p54common.c @@ -27,7 +27,7 @@ MODULE_DESCRIPTION("Softmac Prism54 common code"); MODULE_LICENSE("GPL"); MODULE_ALIAS("prism54common"); -static struct ieee80211_rate p54_rates[] = { +static struct ieee80211_rate p54_bgrates[] = { { .bitrate = 10, .hw_value = 0, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, { .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, { .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, @@ -42,7 +42,7 @@ static struct ieee80211_rate p54_rates[] = { { .bitrate = 540, .hw_value = 11, }, }; -static struct ieee80211_channel p54_channels[] = { +static struct ieee80211_channel p54_bgchannels[] = { { .center_freq = 2412, .hw_value = 1, }, { .center_freq = 2417, .hw_value = 2, }, { .center_freq = 2422, .hw_value = 3, }, @@ -60,10 +60,66 @@ static struct ieee80211_channel p54_channels[] = { }; static struct ieee80211_supported_band band_2GHz = { - .channels = p54_channels, - .n_channels = ARRAY_SIZE(p54_channels), - .bitrates = p54_rates, - .n_bitrates = ARRAY_SIZE(p54_rates), + .channels = p54_bgchannels, + .n_channels = ARRAY_SIZE(p54_bgchannels), + .bitrates = p54_bgrates, + .n_bitrates = ARRAY_SIZE(p54_bgrates), +}; + +static struct ieee80211_rate p54_arates[] = { + { .bitrate = 60, .hw_value = 4, }, + { .bitrate = 90, .hw_value = 5, }, + { .bitrate = 120, .hw_value = 6, }, + { .bitrate = 180, .hw_value = 7, }, + { .bitrate = 240, .hw_value = 8, }, + { .bitrate = 360, .hw_value = 9, }, + { .bitrate = 480, .hw_value = 10, }, + { .bitrate = 540, .hw_value = 11, }, +}; + +static struct ieee80211_channel p54_achannels[] = { + { .center_freq = 4920 }, + { .center_freq = 4940 }, + { .center_freq = 4960 }, + { .center_freq = 4980 }, + { .center_freq = 5040 }, + { .center_freq = 5060 }, + { .center_freq = 5080 }, + { .center_freq = 5170 }, + { .center_freq = 5180 }, + { .center_freq = 5190 }, + { .center_freq = 5200 }, + { .center_freq = 5210 }, + { .center_freq = 5220 }, + { .center_freq = 5230 }, + { .center_freq = 5240 }, + { .center_freq = 5260 }, + { .center_freq = 5280 }, + { .center_freq = 5300 }, + { .center_freq = 5320 }, + { .center_freq = 5500 }, + { .center_freq = 5520 }, + { .center_freq = 5540 }, + { .center_freq = 5560 }, + { .center_freq = 5580 }, + { .center_freq = 5600 }, + { .center_freq = 5620 }, + { .center_freq = 5640 }, + { .center_freq = 5660 }, + { .center_freq = 5680 }, + { .center_freq = 5700 }, + { .center_freq = 5745 }, + { .center_freq = 5765 }, + { .center_freq = 5785 }, + { .center_freq = 5805 }, + { .center_freq = 5825 }, +}; + +static struct ieee80211_supported_band band_5GHz = { + .channels = p54_achannels, + .n_channels = ARRAY_SIZE(p54_achannels), + .bitrates = p54_arates, + .n_bitrates = ARRAY_SIZE(p54_arates), }; int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) @@ -252,6 +308,7 @@ static int p54_convert_rev1(struct ieee80211_hw *dev, const char* p54_rf_chips[] = { "NULL", "Indigo?", "Duette", "Frisbee", "Xbow", "Longbow" }; +static int p54_init_xbow_synth(struct ieee80211_hw *dev); int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len) { @@ -371,20 +428,20 @@ int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len) } switch (priv->rxhw) { - case 4: /* XBow */ - case 1: /* Indigo? */ - case 2: /* Duette */ - /* TODO: 5GHz initialization goes here */ - - case 3: /* Frisbee */ - case 5: /* Longbow */ - dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz; - break; - default: - printk(KERN_ERR "%s: unsupported RF-Chip\n", - wiphy_name(dev->wiphy)); - err = -EINVAL; - goto err; + case 4: /* XBow */ + p54_init_xbow_synth(dev); + case 1: /* Indigo? */ + case 2: /* Duette */ + dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz; + case 3: /* Frisbee */ + case 5: /* Longbow */ + dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz; + break; + default: + printk(KERN_ERR "%s: unsupported RF-Chip\n", + wiphy_name(dev->wiphy)); + err = -EINVAL; + goto err; } if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { @@ -424,21 +481,43 @@ int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len) } EXPORT_SYMBOL_GPL(p54_parse_eeprom); +static int p54_rssi_to_dbm(struct ieee80211_hw *dev, int rssi) +{ + /* TODO: get the rssi_add & rssi_mul data from the eeprom */ + return ((rssi * 0x83) / 64 - 400) / 4; +} + static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb) { + struct p54_common *priv = dev->priv; struct p54_rx_hdr *hdr = (struct p54_rx_hdr *) skb->data; struct ieee80211_rx_status rx_status = {0}; u16 freq = le16_to_cpu(hdr->freq); size_t header_len = sizeof(*hdr); + u32 tsf32; - rx_status.signal = hdr->rssi; + if (!(hdr->magic & cpu_to_le16(0x0001))) { + if (priv->filter_flags & FIF_FCSFAIL) + rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; + else + return 0; + } + + rx_status.signal = p54_rssi_to_dbm(dev, hdr->rssi); + rx_status.noise = priv->noise; /* XX correct? */ rx_status.qual = (100 * hdr->rssi) / 127; rx_status.rate_idx = hdr->rate & 0xf; rx_status.freq = freq; rx_status.band = IEEE80211_BAND_2GHZ; rx_status.antenna = hdr->antenna; - rx_status.mactime = le64_to_cpu(hdr->timestamp); + + tsf32 = le32_to_cpu(hdr->tsf32); + if (tsf32 < priv->tsf_low32) + priv->tsf_high32++; + rx_status.mactime = ((u64)priv->tsf_high32) << 32 | tsf32; + priv->tsf_low32 = tsf32; + rx_status.flag |= RX_FLAG_TSFT; if (hdr->magic & cpu_to_le16(0x4000)) @@ -511,7 +590,8 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) info->status.excessive_retries = 1; } info->status.retry_count = payload->retries - 1; - info->status.ack_signal = le16_to_cpu(payload->ack_rssi); + info->status.ack_signal = p54_rssi_to_dbm(dev, + le16_to_cpu(payload->ack_rssi)); skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data)); ieee80211_tx_status_irqsafe(dev, entry); goto out; @@ -542,6 +622,27 @@ static void p54_rx_eeprom_readback(struct ieee80211_hw *dev, complete(&priv->eeprom_comp); } +static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb) +{ + struct p54_common *priv = dev->priv; + struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data; + struct p54_statistics *stats = (struct p54_statistics *) hdr->data; + u32 tsf32 = le32_to_cpu(stats->tsf32); + + if (tsf32 < priv->tsf_low32) + priv->tsf_high32++; + priv->tsf_low32 = tsf32; + + priv->stats.dot11RTSFailureCount = le32_to_cpu(stats->rts_fail); + priv->stats.dot11RTSSuccessCount = le32_to_cpu(stats->rts_success); + priv->stats.dot11FCSErrorCount = le32_to_cpu(stats->rx_bad_fcs); + + priv->noise = p54_rssi_to_dbm(dev, le32_to_cpu(stats->noise)); + complete(&priv->stats_comp); + + mod_timer(&priv->stats_timer, jiffies + 5 * HZ); +} + static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb) { struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data; @@ -552,6 +653,9 @@ static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb) break; case P54_CONTROL_TYPE_BBP: break; + case P54_CONTROL_TYPE_STAT_READBACK: + p54_rx_stats(dev, skb); + break; case P54_CONTROL_TYPE_EEPROM_READBACK: p54_rx_eeprom_readback(dev, skb); break; @@ -753,7 +857,7 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) txhdr->hw_queue = skb_get_queue_mapping(skb) + 4; txhdr->tx_antenna = (info->antenna_sel_tx == 0) ? 2 : info->antenna_sel_tx - 1; - txhdr->output_power = 0x7f; // HW Maximum + txhdr->output_power = priv->output_power; txhdr->cts_rate = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 0 : cts_rate; if (padding) @@ -1021,12 +1125,25 @@ static int p54_start(struct ieee80211_hw *dev) return -ENOMEM; } + if (!priv->cached_stats) { + priv->cached_stats = kzalloc(sizeof(struct p54_statistics) + + priv->tx_hdr_len + sizeof(struct p54_control_hdr), + GFP_KERNEL); + + if (!priv->cached_stats) { + kfree(priv->cached_vdcf); + priv->cached_vdcf = NULL; + return -ENOMEM; + } + } + err = priv->open(dev); if (!err) priv->mode = IEEE80211_IF_TYPE_MNTR; p54_init_vdcf(dev); + mod_timer(&priv->stats_timer, jiffies + HZ); return err; } @@ -1034,9 +1151,12 @@ static void p54_stop(struct ieee80211_hw *dev) { struct p54_common *priv = dev->priv; struct sk_buff *skb; + + del_timer(&priv->stats_timer); while ((skb = skb_dequeue(&priv->tx_queue))) kfree_skb(skb); priv->stop(dev); + priv->tsf_high32 = priv->tsf_low32 = 0; priv->mode = IEEE80211_IF_TYPE_INVALID; } @@ -1091,6 +1211,7 @@ static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) mutex_lock(&priv->conf_mutex); priv->rx_antenna = (conf->antenna_sel_rx == 0) ? 2 : conf->antenna_sel_tx - 1; + priv->output_power = conf->power_level << 2; ret = p54_set_freq(dev, cpu_to_le16(conf->channel->center_freq)); p54_set_vdcf(dev); mutex_unlock(&priv->conf_mutex); @@ -1118,13 +1239,26 @@ static void p54_configure_filter(struct ieee80211_hw *dev, { struct p54_common *priv = dev->priv; - *total_flags &= FIF_BCN_PRBRESP_PROMISC; + *total_flags &= FIF_BCN_PRBRESP_PROMISC | + FIF_PROMISC_IN_BSS | + FIF_FCSFAIL; + + priv->filter_flags = *total_flags; if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { if (*total_flags & FIF_BCN_PRBRESP_PROMISC) - p54_set_filter(dev, 0, NULL); + p54_set_filter(dev, priv->filter_type, NULL); else - p54_set_filter(dev, 0, priv->bssid); + p54_set_filter(dev, priv->filter_type, priv->bssid); + } + + if (changed_flags & FIF_PROMISC_IN_BSS) { + if (*total_flags & FIF_PROMISC_IN_BSS) + p54_set_filter(dev, priv->filter_type | + cpu_to_le16(0x8), NULL); + else + p54_set_filter(dev, priv->filter_type & + ~cpu_to_le16(0x8), priv->bssid); } } @@ -1148,10 +1282,67 @@ static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue, return 0; } +static int p54_init_xbow_synth(struct ieee80211_hw *dev) +{ + struct p54_common *priv = dev->priv; + struct p54_control_hdr *hdr; + struct p54_tx_control_xbow_synth *xbow; + + hdr = kzalloc(sizeof(*hdr) + sizeof(*xbow) + + priv->tx_hdr_len, GFP_KERNEL); + if (!hdr) + return -ENOMEM; + + hdr = (void *)hdr + priv->tx_hdr_len; + hdr->magic1 = cpu_to_le16(0x8001); + hdr->len = cpu_to_le16(sizeof(*xbow)); + hdr->type = cpu_to_le16(P54_CONTROL_TYPE_XBOW_SYNTH_CFG); + p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*xbow)); + + xbow = (struct p54_tx_control_xbow_synth *) hdr->data; + xbow->magic1 = cpu_to_le16(0x1); + xbow->magic2 = cpu_to_le16(0x2); + xbow->freq = cpu_to_le16(5390); + + priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*xbow), 1); + + return 0; +} + +static void p54_statistics_timer(unsigned long data) +{ + struct ieee80211_hw *dev = (struct ieee80211_hw *) data; + struct p54_common *priv = dev->priv; + struct p54_control_hdr *hdr; + struct p54_statistics *stats; + + BUG_ON(!priv->cached_stats); + + hdr = (void *)priv->cached_stats + priv->tx_hdr_len; + hdr->magic1 = cpu_to_le16(0x8000); + hdr->len = cpu_to_le16(sizeof(*stats)); + hdr->type = cpu_to_le16(P54_CONTROL_TYPE_STAT_READBACK); + p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*stats)); + + priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*stats), 0); +} + static int p54_get_stats(struct ieee80211_hw *dev, struct ieee80211_low_level_stats *stats) { - /* TODO */ + struct p54_common *priv = dev->priv; + + del_timer(&priv->stats_timer); + p54_statistics_timer((unsigned long)dev); + + if (!wait_for_completion_interruptible_timeout(&priv->stats_comp, HZ)) { + printk(KERN_ERR "%s: device does not respond!\n", + wiphy_name(dev->wiphy)); + return -EBUSY; + } + + memcpy(stats, &priv->stats, sizeof(*stats)); + return 0; } @@ -1193,12 +1384,12 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len) skb_queue_head_init(&priv->tx_queue); dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | /* not sure */ IEEE80211_HW_RX_INCLUDES_FCS | - IEEE80211_HW_SIGNAL_UNSPEC; + IEEE80211_HW_SIGNAL_DBM | + IEEE80211_HW_NOISE_DBM; dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); dev->channel_change_time = 1000; /* TODO: find actual value */ - dev->max_signal = 127; priv->tx_stats[0].limit = 1; priv->tx_stats[1].limit = 1; @@ -1206,11 +1397,15 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len) priv->tx_stats[3].limit = 1; priv->tx_stats[4].limit = 5; dev->queues = 1; + priv->noise = -94; dev->extra_tx_headroom = sizeof(struct p54_control_hdr) + 4 + sizeof(struct p54_tx_control_allocdata); mutex_init(&priv->conf_mutex); init_completion(&priv->eeprom_comp); + init_completion(&priv->stats_comp); + setup_timer(&priv->stats_timer, p54_statistics_timer, + (unsigned long)dev); return dev; } @@ -1219,6 +1414,7 @@ EXPORT_SYMBOL_GPL(p54_init_common); void p54_free_common(struct ieee80211_hw *dev) { struct p54_common *priv = dev->priv; + kfree(priv->cached_stats); kfree(priv->iq_autocal); kfree(priv->output_limit); kfree(priv->curve_data); diff --git a/drivers/net/wireless/p54/p54common.h b/drivers/net/wireless/p54/p54common.h index 73a9a2c..4da736c 100644 --- a/drivers/net/wireless/p54/p54common.h +++ b/drivers/net/wireless/p54/p54common.h @@ -185,7 +185,8 @@ struct p54_rx_hdr { u8 rssi; u8 quality; u16 unknown2; - __le64 timestamp; + __le32 tsf32; + __le32 unalloc0; u8 align[0]; } __attribute__ ((packed)); @@ -300,4 +301,24 @@ struct p54_tx_control_vdcf { __le16 frameburst; } __attribute__ ((packed)); +struct p54_statistics { + __le32 rx_success; + __le32 rx_bad_fcs; + __le32 rx_abort; + __le32 rx_abort_phy; + __le32 rts_success; + __le32 rts_fail; + __le32 tsf32; + __le32 airtime; + __le32 noise; + __le32 unkn[10]; /* CCE / CCA / RADAR */ +} __attribute__ ((packed)); + +struct p54_tx_control_xbow_synth { + __le16 magic1; + __le16 magic2; + __le16 freq; + u32 padding[5]; +} __attribute__ ((packed)); + #endif /* P54COMMON_H */ diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig index 11f590d..b686dc4 100644 --- a/drivers/net/wireless/rt2x00/Kconfig +++ b/drivers/net/wireless/rt2x00/Kconfig @@ -40,11 +40,15 @@ config RT2X00_LIB_CRYPTO config RT2X00_LIB_RFKILL boolean depends on RT2X00_LIB - select RFKILL + depends on RFKILL + default y config RT2X00_LIB_LEDS boolean - depends on RT2X00_LIB && NEW_LEDS + depends on RT2X00_LIB + depends on NEW_LEDS + depends on LEDS_CLASS + default y config RT2400PCI tristate "Ralink rt2400 (PCI/PCMCIA) support" @@ -57,23 +61,6 @@ config RT2400PCI When compiled as a module, this driver will be called "rt2400pci.ko". -config RT2400PCI_RFKILL - bool "Ralink rt2400 rfkill support" - depends on RT2400PCI - select RT2X00_LIB_RFKILL - ---help--- - This adds support for integrated rt2400 hardware that features a - hardware button to control the radio state. - This feature depends on the RF switch subsystem rfkill. - -config RT2400PCI_LEDS - bool "Ralink rt2400 leds support" - depends on RT2400PCI && NEW_LEDS - select LEDS_CLASS - select RT2X00_LIB_LEDS - ---help--- - This adds support for led triggers provided my mac80211. - config RT2500PCI tristate "Ralink rt2500 (PCI/PCMCIA) support" depends on PCI @@ -85,23 +72,6 @@ config RT2500PCI When compiled as a module, this driver will be called "rt2500pci.ko". -config RT2500PCI_RFKILL - bool "Ralink rt2500 rfkill support" - depends on RT2500PCI - select RT2X00_LIB_RFKILL - ---help--- - This adds support for integrated rt2500 hardware that features a - hardware button to control the radio state. - This feature depends on the RF switch subsystem rfkill. - -config RT2500PCI_LEDS - bool "Ralink rt2500 leds support" - depends on RT2500PCI && NEW_LEDS - select LEDS_CLASS - select RT2X00_LIB_LEDS - ---help--- - This adds support for led triggers provided my mac80211. - config RT61PCI tristate "Ralink rt2501/rt61 (PCI/PCMCIA) support" depends on PCI @@ -116,23 +86,6 @@ config RT61PCI When compiled as a module, this driver will be called "rt61pci.ko". -config RT61PCI_RFKILL - bool "Ralink rt2501/rt61 rfkill support" - depends on RT61PCI - select RT2X00_LIB_RFKILL - ---help--- - This adds support for integrated rt61 hardware that features a - hardware button to control the radio state. - This feature depends on the RF switch subsystem rfkill. - -config RT61PCI_LEDS - bool "Ralink rt2501/rt61 leds support" - depends on RT61PCI && NEW_LEDS - select LEDS_CLASS - select RT2X00_LIB_LEDS - ---help--- - This adds support for led triggers provided my mac80211. - config RT2500USB tristate "Ralink rt2500 (USB) support" depends on USB @@ -143,14 +96,6 @@ config RT2500USB When compiled as a module, this driver will be called "rt2500usb.ko". -config RT2500USB_LEDS - bool "Ralink rt2500 leds support" - depends on RT2500USB && NEW_LEDS - select LEDS_CLASS - select RT2X00_LIB_LEDS - ---help--- - This adds support for led triggers provided my mac80211. - config RT73USB tristate "Ralink rt2501/rt73 (USB) support" depends on USB @@ -164,14 +109,6 @@ config RT73USB When compiled as a module, this driver will be called "rt73usb.ko". -config RT73USB_LEDS - bool "Ralink rt2501/rt73 leds support" - depends on RT73USB && NEW_LEDS - select LEDS_CLASS - select RT2X00_LIB_LEDS - ---help--- - This adds support for led triggers provided my mac80211. - config RT2X00_LIB_DEBUGFS bool "Ralink debugfs support" depends on RT2X00_LIB && MAC80211_DEBUGFS diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c index 18b703c..08cb9ee 100644 --- a/drivers/net/wireless/rt2x00/rt2400pci.c +++ b/drivers/net/wireless/rt2x00/rt2400pci.c @@ -231,7 +231,7 @@ static const struct rt2x00debug rt2400pci_rt2x00debug = { }; #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ -#ifdef CONFIG_RT2400PCI_RFKILL +#ifdef CONFIG_RT2X00_LIB_RFKILL static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) { u32 reg; @@ -241,9 +241,9 @@ static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) } #else #define rt2400pci_rfkill_poll NULL -#endif /* CONFIG_RT2400PCI_RFKILL */ +#endif /* CONFIG_RT2X00_LIB_RFKILL */ -#ifdef CONFIG_RT2400PCI_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS static void rt2400pci_brightness_set(struct led_classdev *led_cdev, enum led_brightness brightness) { @@ -288,7 +288,7 @@ static void rt2400pci_init_led(struct rt2x00_dev *rt2x00dev, led->led_dev.blink_set = rt2400pci_blink_set; led->flags = LED_INITIALIZED; } -#endif /* CONFIG_RT2400PCI_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ /* * Configuration handlers. @@ -1374,22 +1374,22 @@ static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev) /* * Store led mode, for correct led behaviour. */ -#ifdef CONFIG_RT2400PCI_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE); rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO); if (value == LED_MODE_TXRX_ACTIVITY) rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_qual, LED_TYPE_ACTIVITY); -#endif /* CONFIG_RT2400PCI_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ /* * Detect if this device has an hardware controlled radio. */ -#ifdef CONFIG_RT2400PCI_RFKILL +#ifdef CONFIG_RT2X00_LIB_RFKILL if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags); -#endif /* CONFIG_RT2400PCI_RFKILL */ +#endif /* CONFIG_RT2X00_LIB_RFKILL */ /* * Check if the BBP tuning should be enabled. diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c index 2a96a01..ef42cc0 100644 --- a/drivers/net/wireless/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/rt2x00/rt2500pci.c @@ -231,7 +231,7 @@ static const struct rt2x00debug rt2500pci_rt2x00debug = { }; #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ -#ifdef CONFIG_RT2500PCI_RFKILL +#ifdef CONFIG_RT2X00_LIB_RFKILL static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) { u32 reg; @@ -241,9 +241,9 @@ static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) } #else #define rt2500pci_rfkill_poll NULL -#endif /* CONFIG_RT2500PCI_RFKILL */ +#endif /* CONFIG_RT2X00_LIB_RFKILL */ -#ifdef CONFIG_RT2500PCI_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS static void rt2500pci_brightness_set(struct led_classdev *led_cdev, enum led_brightness brightness) { @@ -288,7 +288,7 @@ static void rt2500pci_init_led(struct rt2x00_dev *rt2x00dev, led->led_dev.blink_set = rt2500pci_blink_set; led->flags = LED_INITIALIZED; } -#endif /* CONFIG_RT2500PCI_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ /* * Configuration handlers. @@ -1533,22 +1533,22 @@ static int rt2500pci_init_eeprom(struct rt2x00_dev *rt2x00dev) /* * Store led mode, for correct led behaviour. */ -#ifdef CONFIG_RT2500PCI_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE); rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO); if (value == LED_MODE_TXRX_ACTIVITY) rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_qual, LED_TYPE_ACTIVITY); -#endif /* CONFIG_RT2500PCI_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ /* * Detect if this device has an hardware controlled radio. */ -#ifdef CONFIG_RT2500PCI_RFKILL +#ifdef CONFIG_RT2X00_LIB_RFKILL if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags); -#endif /* CONFIG_RT2500PCI_RFKILL */ +#endif /* CONFIG_RT2X00_LIB_RFKILL */ /* * Check if the BBP tuning should be enabled. diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index 0e008b6..cb5f2d0 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -288,7 +288,7 @@ static const struct rt2x00debug rt2500usb_rt2x00debug = { }; #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ -#ifdef CONFIG_RT2500USB_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS static void rt2500usb_brightness_set(struct led_classdev *led_cdev, enum led_brightness brightness) { @@ -333,7 +333,7 @@ static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev, led->led_dev.blink_set = rt2500usb_blink_set; led->flags = LED_INITIALIZED; } -#endif /* CONFIG_RT2500USB_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ /* * Configuration handlers. @@ -1133,7 +1133,6 @@ static void rt2500usb_write_beacon(struct queue_entry *entry) int pipe = usb_sndbulkpipe(usb_dev, 1); int length; u16 reg; - u32 word, len; /* * Add the descriptor in front of the skb. @@ -1143,17 +1142,6 @@ static void rt2500usb_write_beacon(struct queue_entry *entry) skbdesc->desc = entry->skb->data; /* - * Adjust the beacon databyte count. The current number is - * calculated before this function gets called, but falsely - * assumes that the descriptor was already present in the SKB. - */ - rt2x00_desc_read(skbdesc->desc, 0, &word); - len = rt2x00_get_field32(word, TXD_W0_DATABYTE_COUNT); - len += skbdesc->desc_len; - rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, len); - rt2x00_desc_write(skbdesc->desc, 0, word); - - /* * Disable beaconing while we are reloading the beacon data, * otherwise we might be sending out invalid data. */ @@ -1485,14 +1473,14 @@ static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev) /* * Store led mode, for correct led behaviour. */ -#ifdef CONFIG_RT2500USB_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE); rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO); if (value == LED_MODE_TXRX_ACTIVITY) rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual, LED_TYPE_ACTIVITY); -#endif /* CONFIG_RT2500USB_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ /* * Check if the BBP tuning should be disabled. diff --git a/drivers/net/wireless/rt2x00/rt2x00rfkill.c b/drivers/net/wireless/rt2x00/rt2x00rfkill.c index 8a2fefb..55eff58 100644 --- a/drivers/net/wireless/rt2x00/rt2x00rfkill.c +++ b/drivers/net/wireless/rt2x00/rt2x00rfkill.c @@ -45,16 +45,15 @@ static int rt2x00rfkill_toggle_radio(void *data, enum rfkill_state state) return 0; if (state == RFKILL_STATE_UNBLOCKED) { - INFO(rt2x00dev, "Hardware button pressed, enabling radio.\n"); + INFO(rt2x00dev, "RFKILL event: enabling radio.\n"); clear_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags); retval = rt2x00lib_enable_radio(rt2x00dev); } else if (state == RFKILL_STATE_SOFT_BLOCKED) { - INFO(rt2x00dev, "Hardware button pressed, disabling radio.\n"); + INFO(rt2x00dev, "RFKILL event: disabling radio.\n"); set_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags); rt2x00lib_disable_radio(rt2x00dev); } else { - WARNING(rt2x00dev, "Received unexpected rfkill state %d.\n", - state); + WARNING(rt2x00dev, "RFKILL event: unknown state %d.\n", state); } return retval; @@ -64,7 +63,12 @@ static int rt2x00rfkill_get_state(void *data, enum rfkill_state *state) { struct rt2x00_dev *rt2x00dev = data; - *state = rt2x00dev->rfkill->state; + /* + * rfkill_poll reports 1 when the key has been pressed and the + * radio should be blocked. + */ + *state = rt2x00dev->ops->lib->rfkill_poll(rt2x00dev) ? + RFKILL_STATE_SOFT_BLOCKED : RFKILL_STATE_UNBLOCKED; return 0; } @@ -73,19 +77,18 @@ static void rt2x00rfkill_poll(struct work_struct *work) { struct rt2x00_dev *rt2x00dev = container_of(work, struct rt2x00_dev, rfkill_work.work); - int state; + enum rfkill_state state; - if (!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state)) + if (!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state) || + !test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags)) return; /* - * rfkill_poll reports 1 when the key has been pressed and the - * radio should be blocked. + * Poll latest state and report it to rfkill who should sort + * out if the state should be toggled or not. */ - state = !rt2x00dev->ops->lib->rfkill_poll(rt2x00dev) ? - RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; - - rfkill_force_state(rt2x00dev->rfkill, state); + if (!rt2x00rfkill_get_state(rt2x00dev, &state)) + rfkill_force_state(rt2x00dev->rfkill, state); queue_delayed_work(rt2x00dev->hw->workqueue, &rt2x00dev->rfkill_work, RFKILL_POLL_INTERVAL); @@ -93,8 +96,8 @@ static void rt2x00rfkill_poll(struct work_struct *work) void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev) { - if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) || - !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state)) + if (!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state) || + test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state)) return; if (rfkill_register(rt2x00dev->rfkill)) { @@ -114,7 +117,7 @@ void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev) void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev) { - if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) || + if (!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state) || !test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state)) return; @@ -127,21 +130,25 @@ void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev) void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev) { - if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags)) + struct device *dev = wiphy_dev(rt2x00dev->hw->wiphy); + + if (test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state)) return; - rt2x00dev->rfkill = - rfkill_allocate(wiphy_dev(rt2x00dev->hw->wiphy), RFKILL_TYPE_WLAN); + rt2x00dev->rfkill = rfkill_allocate(dev, RFKILL_TYPE_WLAN); if (!rt2x00dev->rfkill) { ERROR(rt2x00dev, "Failed to allocate rfkill handler.\n"); return; } + __set_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state); + rt2x00dev->rfkill->name = rt2x00dev->ops->name; rt2x00dev->rfkill->data = rt2x00dev; rt2x00dev->rfkill->state = -1; rt2x00dev->rfkill->toggle_radio = rt2x00rfkill_toggle_radio; - rt2x00dev->rfkill->get_state = rt2x00rfkill_get_state; + if (test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags)) + rt2x00dev->rfkill->get_state = rt2x00rfkill_get_state; INIT_DELAYED_WORK(&rt2x00dev->rfkill_work, rt2x00rfkill_poll); @@ -150,8 +157,7 @@ void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev) void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev) { - if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) || - !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state)) + if (!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->flags)) return; cancel_delayed_work_sync(&rt2x00dev->rfkill_work); diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index d740f56..2c36b91 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -163,7 +163,7 @@ rf_write: rt2x00_rf_write(rt2x00dev, word, value); } -#ifdef CONFIG_RT61PCI_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS /* * This function is only called from rt61pci_led_brightness() * make gcc happy by placing this function inside the @@ -195,7 +195,7 @@ static void rt61pci_mcu_request(struct rt2x00_dev *rt2x00dev, rt2x00_set_field32(®, HOST_CMD_CSR_INTERRUPT_MCU, 1); rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, reg); } -#endif /* CONFIG_RT61PCI_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ static void rt61pci_eepromregister_read(struct eeprom_93cx6 *eeprom) { @@ -271,7 +271,7 @@ static const struct rt2x00debug rt61pci_rt2x00debug = { }; #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ -#ifdef CONFIG_RT61PCI_RFKILL +#ifdef CONFIG_RT2X00_LIB_RFKILL static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) { u32 reg; @@ -281,9 +281,9 @@ static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) } #else #define rt61pci_rfkill_poll NULL -#endif /* CONFIG_RT61PCI_RFKILL */ +#endif /* CONFIG_RT2X00_LIB_RFKILL */ -#ifdef CONFIG_RT61PCI_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS static void rt61pci_brightness_set(struct led_classdev *led_cdev, enum led_brightness brightness) { @@ -348,7 +348,7 @@ static void rt61pci_init_led(struct rt2x00_dev *rt2x00dev, led->led_dev.blink_set = rt61pci_blink_set; led->flags = LED_INITIALIZED; } -#endif /* CONFIG_RT61PCI_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ /* * Configuration handlers. @@ -2313,10 +2313,10 @@ static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev) /* * Detect if this device has an hardware controlled radio. */ -#ifdef CONFIG_RT61PCI_RFKILL +#ifdef CONFIG_RT2X00_LIB_RFKILL if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags); -#endif /* CONFIG_RT61PCI_RFKILL */ +#endif /* CONFIG_RT2X00_LIB_RFKILL */ /* * Read frequency offset and RF programming sequence. @@ -2374,7 +2374,7 @@ static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev) * If the eeprom value is invalid, * switch to default led mode. */ -#ifdef CONFIG_RT61PCI_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom); value = rt2x00_get_field16(eeprom, EEPROM_LED_LED_MODE); @@ -2408,7 +2408,7 @@ static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev) rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_A, rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_A)); -#endif /* CONFIG_RT61PCI_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ return 0; } diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index e698ae0..27dde3e 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -292,7 +292,7 @@ static const struct rt2x00debug rt73usb_rt2x00debug = { }; #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ -#ifdef CONFIG_RT73USB_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS static void rt73usb_brightness_set(struct led_classdev *led_cdev, enum led_brightness brightness) { @@ -359,7 +359,7 @@ static void rt73usb_init_led(struct rt2x00_dev *rt2x00dev, led->led_dev.blink_set = rt73usb_blink_set; led->flags = LED_INITIALIZED; } -#endif /* CONFIG_RT73USB_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ /* * Configuration handlers. @@ -1572,7 +1572,6 @@ static void rt73usb_write_beacon(struct queue_entry *entry) struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); unsigned int beacon_base; u32 reg; - u32 word, len; /* * Add the descriptor in front of the skb. @@ -1582,17 +1581,6 @@ static void rt73usb_write_beacon(struct queue_entry *entry) skbdesc->desc = entry->skb->data; /* - * Adjust the beacon databyte count. The current number is - * calculated before this function gets called, but falsely - * assumes that the descriptor was already present in the SKB. - */ - rt2x00_desc_read(skbdesc->desc, 0, &word); - len = rt2x00_get_field32(word, TXD_W0_DATABYTE_COUNT); - len += skbdesc->desc_len; - rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, len); - rt2x00_desc_write(skbdesc->desc, 0, word); - - /* * Disable beaconing while we are reloading the beacon data, * otherwise we might be sending out invalid data. */ @@ -1944,7 +1932,7 @@ static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev) /* * Store led settings, for correct led behaviour. */ -#ifdef CONFIG_RT73USB_LEDS +#ifdef CONFIG_RT2X00_LIB_LEDS rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom); rt73usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO); @@ -1977,7 +1965,7 @@ static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev) rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_A, rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_A)); -#endif /* CONFIG_RT73USB_LEDS */ +#endif /* CONFIG_RT2X00_LIB_LEDS */ return 0; } diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index be45645..abc1abc 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -643,6 +643,9 @@ struct ieee80211_mgmt { } u; } __attribute__ ((packed)); +/* mgmt header + 1 byte category code */ +#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u) + /* Control frames */ struct ieee80211_rts { @@ -708,7 +711,7 @@ struct ieee80211_ht_addt_info { /* 802.11n HT capabilities masks */ #define IEEE80211_HT_CAP_SUP_WIDTH 0x0002 -#define IEEE80211_HT_CAP_MIMO_PS 0x000C +#define IEEE80211_HT_CAP_SM_PS 0x000C #define IEEE80211_HT_CAP_GRN_FLD 0x0010 #define IEEE80211_HT_CAP_SGI_20 0x0020 #define IEEE80211_HT_CAP_SGI_40 0x0040 @@ -737,11 +740,26 @@ struct ieee80211_ht_addt_info { #define IEEE80211_HT_IE_NON_GF_STA_PRSNT 0x0004 #define IEEE80211_HT_IE_NON_HT_STA_PRSNT 0x0010 -/* MIMO Power Save Modes */ -#define WLAN_HT_CAP_MIMO_PS_STATIC 0 -#define WLAN_HT_CAP_MIMO_PS_DYNAMIC 1 -#define WLAN_HT_CAP_MIMO_PS_INVALID 2 -#define WLAN_HT_CAP_MIMO_PS_DISABLED 3 +/* block-ack parameters */ +#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 +#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C +#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0 +#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 +#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 + +/* + * A-PMDU buffer sizes + * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) + */ +#define IEEE80211_MIN_AMPDU_BUF 0x8 +#define IEEE80211_MAX_AMPDU_BUF 0x40 + + +/* Spatial Multiplexing Power Save Modes */ +#define WLAN_HT_CAP_SM_PS_STATIC 0 +#define WLAN_HT_CAP_SM_PS_DYNAMIC 1 +#define WLAN_HT_CAP_SM_PS_INVALID 2 +#define WLAN_HT_CAP_SM_PS_DISABLED 3 /* Authentication algorithms */ #define WLAN_AUTH_OPEN 0 diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 7c399a9..fb9e622 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1142,7 +1142,7 @@ enum ieee80211_ampdu_mlme_action { * of assocaited station or AP. * * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), - * bursting) for a hardware TX queue. Must be atomic. + * bursting) for a hardware TX queue. * * @get_tx_stats: Get statistics of the current TX queue status. This is used * to get number of currently queued packets (queue length), maximum queue diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index a169b02..2dc8f2b 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -7,6 +7,8 @@ mac80211-y := \ sta_info.o \ wep.o \ wpa.o \ + scan.o \ + ht.o \ mlme.o \ iface.o \ rate.o \ @@ -15,6 +17,7 @@ mac80211-y := \ aes_ccm.o \ cfg.o \ rx.o \ + spectmgmt.o \ tx.o \ key.o \ util.o \ diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c new file mode 100644 index 0000000..4dc35c9 --- /dev/null +++ b/net/mac80211/ht.c @@ -0,0 +1,992 @@ +/* + * HT handling + * + * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi> + * Copyright 2002-2005, Instant802 Networks, Inc. + * Copyright 2005-2006, Devicescape Software, Inc. + * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> + * Copyright 2007, Michael Wu <flamingice@sourmilk.net> + * Copyright 2007-2008, Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/ieee80211.h> +#include <net/wireless.h> +#include <net/mac80211.h> +#include "ieee80211_i.h" +#include "sta_info.h" +#include "wme.h" + +int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, + struct ieee80211_ht_info *ht_info) +{ + + if (ht_info == NULL) + return -EINVAL; + + memset(ht_info, 0, sizeof(*ht_info)); + + if (ht_cap_ie) { + u8 ampdu_info = ht_cap_ie->ampdu_params_info; + + ht_info->ht_supported = 1; + ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info); + ht_info->ampdu_factor = + ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR; + ht_info->ampdu_density = + (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2; + memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16); + } else + ht_info->ht_supported = 0; + + return 0; +} + +int ieee80211_ht_addt_info_ie_to_ht_bss_info( + struct ieee80211_ht_addt_info *ht_add_info_ie, + struct ieee80211_ht_bss_info *bss_info) +{ + if (bss_info == NULL) + return -EINVAL; + + memset(bss_info, 0, sizeof(*bss_info)); + + if (ht_add_info_ie) { + u16 op_mode; + op_mode = le16_to_cpu(ht_add_info_ie->operation_mode); + + bss_info->primary_channel = ht_add_info_ie->control_chan; + bss_info->bss_cap = ht_add_info_ie->ht_param; + bss_info->bss_op_mode = (u8)(op_mode & 0xff); + } + + return 0; +} + +static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, + const u8 *da, u16 tid, + u8 dialog_token, u16 start_seq_num, + u16 agg_size, u16 timeout) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + u16 capab; + + skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); + + if (!skb) { + printk(KERN_ERR "%s: failed to allocate buffer " + "for addba request frame\n", sdata->dev->name); + return; + } + skb_reserve(skb, local->hw.extra_tx_headroom); + mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); + memset(mgmt, 0, 24); + memcpy(mgmt->da, da, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + if (sdata->vif.type == IEEE80211_IF_TYPE_AP) + memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN); + else + memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); + + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ACTION); + + skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req)); + + mgmt->u.action.category = WLAN_CATEGORY_BACK; + mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ; + + mgmt->u.action.u.addba_req.dialog_token = dialog_token; + capab = (u16)(1 << 1); /* bit 1 aggregation policy */ + capab |= (u16)(tid << 2); /* bit 5:2 TID number */ + capab |= (u16)(agg_size << 6); /* bit 15:6 max size of aggergation */ + + mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab); + + mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout); + mgmt->u.action.u.addba_req.start_seq_num = + cpu_to_le16(start_seq_num << 4); + + ieee80211_tx_skb(sdata, skb, 0); +} + +static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *da, u16 tid, + u8 dialog_token, u16 status, u16 policy, + u16 buf_size, u16 timeout) +{ + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + struct ieee80211_local *local = sdata->local; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + u16 capab; + + skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); + + if (!skb) { + printk(KERN_DEBUG "%s: failed to allocate buffer " + "for addba resp frame\n", sdata->dev->name); + return; + } + + skb_reserve(skb, local->hw.extra_tx_headroom); + mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); + memset(mgmt, 0, 24); + memcpy(mgmt->da, da, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + if (sdata->vif.type == IEEE80211_IF_TYPE_AP) + memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN); + else + memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ACTION); + + skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp)); + mgmt->u.action.category = WLAN_CATEGORY_BACK; + mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP; + mgmt->u.action.u.addba_resp.dialog_token = dialog_token; + + capab = (u16)(policy << 1); /* bit 1 aggregation policy */ + capab |= (u16)(tid << 2); /* bit 5:2 TID number */ + capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */ + + mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab); + mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout); + mgmt->u.action.u.addba_resp.status = cpu_to_le16(status); + + ieee80211_tx_skb(sdata, skb, 0); +} + +static void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, + const u8 *da, u16 tid, + u16 initiator, u16 reason_code) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + u16 params; + + skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); + + if (!skb) { + printk(KERN_ERR "%s: failed to allocate buffer " + "for delba frame\n", sdata->dev->name); + return; + } + + skb_reserve(skb, local->hw.extra_tx_headroom); + mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); + memset(mgmt, 0, 24); + memcpy(mgmt->da, da, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + if (sdata->vif.type == IEEE80211_IF_TYPE_AP) + memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN); + else + memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ACTION); + + skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba)); + + mgmt->u.action.category = WLAN_CATEGORY_BACK; + mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA; + params = (u16)(initiator << 11); /* bit 11 initiator */ + params |= (u16)(tid << 12); /* bit 15:12 TID number */ + + mgmt->u.action.u.delba.params = cpu_to_le16(params); + mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code); + + ieee80211_tx_skb(sdata, skb, 0); +} + +void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn) +{ + struct ieee80211_local *local = sdata->local; + struct sk_buff *skb; + struct ieee80211_bar *bar; + u16 bar_control = 0; + + skb = dev_alloc_skb(sizeof(*bar) + local->hw.extra_tx_headroom); + if (!skb) { + printk(KERN_ERR "%s: failed to allocate buffer for " + "bar frame\n", sdata->dev->name); + return; + } + skb_reserve(skb, local->hw.extra_tx_headroom); + bar = (struct ieee80211_bar *)skb_put(skb, sizeof(*bar)); + memset(bar, 0, sizeof(*bar)); + bar->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | + IEEE80211_STYPE_BACK_REQ); + memcpy(bar->ra, ra, ETH_ALEN); + memcpy(bar->ta, sdata->dev->dev_addr, ETH_ALEN); + bar_control |= (u16)IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL; + bar_control |= (u16)IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA; + bar_control |= (u16)(tid << 12); + bar->control = cpu_to_le16(bar_control); + bar->start_seq_num = cpu_to_le16(ssn); + + ieee80211_tx_skb(sdata, skb, 0); +} + +void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, + u16 initiator, u16 reason) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_hw *hw = &local->hw; + struct sta_info *sta; + int ret, i; + DECLARE_MAC_BUF(mac); + + rcu_read_lock(); + + sta = sta_info_get(local, ra); + if (!sta) { + rcu_read_unlock(); + return; + } + + /* check if TID is in operational state */ + spin_lock_bh(&sta->lock); + if (sta->ampdu_mlme.tid_state_rx[tid] + != HT_AGG_STATE_OPERATIONAL) { + spin_unlock_bh(&sta->lock); + rcu_read_unlock(); + return; + } + sta->ampdu_mlme.tid_state_rx[tid] = + HT_AGG_STATE_REQ_STOP_BA_MSK | + (initiator << HT_AGG_STATE_INITIATOR_SHIFT); + spin_unlock_bh(&sta->lock); + + /* stop HW Rx aggregation. ampdu_action existence + * already verified in session init so we add the BUG_ON */ + BUG_ON(!local->ops->ampdu_action); + +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Rx BA session stop requested for %s tid %u\n", + print_mac(mac, ra), tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + + ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP, + ra, tid, NULL); + if (ret) + printk(KERN_DEBUG "HW problem - can not stop rx " + "aggregation for tid %d\n", tid); + + /* shutdown timer has not expired */ + if (initiator != WLAN_BACK_TIMER) + del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]->session_timer); + + /* check if this is a self generated aggregation halt */ + if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER) + ieee80211_send_delba(sdata, ra, tid, 0, reason); + + /* free the reordering buffer */ + for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) { + if (sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]) { + /* release the reordered frames */ + dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]); + sta->ampdu_mlme.tid_rx[tid]->stored_mpdu_num--; + sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i] = NULL; + } + } + /* free resources */ + kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf); + kfree(sta->ampdu_mlme.tid_rx[tid]); + sta->ampdu_mlme.tid_rx[tid] = NULL; + sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE; + + rcu_read_unlock(); +} + + +/* + * After sending add Block Ack request we activated a timer until + * add Block Ack response will arrive from the recipient. + * If this timer expires sta_addba_resp_timer_expired will be executed. + */ +static void sta_addba_resp_timer_expired(unsigned long data) +{ + /* not an elegant detour, but there is no choice as the timer passes + * only one argument, and both sta_info and TID are needed, so init + * flow in sta_info_create gives the TID as data, while the timer_to_id + * array gives the sta through container_of */ + u16 tid = *(u8 *)data; + struct sta_info *temp_sta = container_of((void *)data, + struct sta_info, timer_to_tid[tid]); + + struct ieee80211_local *local = temp_sta->local; + struct ieee80211_hw *hw = &local->hw; + struct sta_info *sta; + u8 *state; + + rcu_read_lock(); + + sta = sta_info_get(local, temp_sta->addr); + if (!sta) { + rcu_read_unlock(); + return; + } + + state = &sta->ampdu_mlme.tid_state_tx[tid]; + /* check if the TID waits for addBA response */ + spin_lock_bh(&sta->lock); + if (!(*state & HT_ADDBA_REQUESTED_MSK)) { + spin_unlock_bh(&sta->lock); + *state = HT_AGG_STATE_IDLE; +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "timer expired on tid %d but we are not " + "expecting addBA response there", tid); +#endif + goto timer_expired_exit; + } + +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid); +#endif + + /* go through the state check in stop_BA_session */ + *state = HT_AGG_STATE_OPERATIONAL; + spin_unlock_bh(&sta->lock); + ieee80211_stop_tx_ba_session(hw, temp_sta->addr, tid, + WLAN_BACK_INITIATOR); + +timer_expired_exit: + rcu_read_unlock(); +} + +void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr) +{ + struct ieee80211_local *local = sdata->local; + int i; + + for (i = 0; i < STA_TID_NUM; i++) { + ieee80211_stop_tx_ba_session(&local->hw, addr, i, + WLAN_BACK_INITIATOR); + ieee80211_sta_stop_rx_ba_session(sdata, addr, i, + WLAN_BACK_RECIPIENT, + WLAN_REASON_QSTA_LEAVE_QBSS); + } +} + +int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct sta_info *sta; + struct ieee80211_sub_if_data *sdata; + u16 start_seq_num; + u8 *state; + int ret; + DECLARE_MAC_BUF(mac); + + if (tid >= STA_TID_NUM) + return -EINVAL; + +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Open BA session requested for %s tid %u\n", + print_mac(mac, ra), tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + + rcu_read_lock(); + + sta = sta_info_get(local, ra); + if (!sta) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Could not find the station\n"); +#endif + ret = -ENOENT; + goto exit; + } + + spin_lock_bh(&sta->lock); + + /* we have tried too many times, receiver does not want A-MPDU */ + if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) { + ret = -EBUSY; + goto err_unlock_sta; + } + + state = &sta->ampdu_mlme.tid_state_tx[tid]; + /* check if the TID is not in aggregation flow already */ + if (*state != HT_AGG_STATE_IDLE) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "BA request denied - session is not " + "idle on tid %u\n", tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + ret = -EAGAIN; + goto err_unlock_sta; + } + + /* prepare A-MPDU MLME for Tx aggregation */ + sta->ampdu_mlme.tid_tx[tid] = + kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC); + if (!sta->ampdu_mlme.tid_tx[tid]) { +#ifdef CONFIG_MAC80211_HT_DEBUG + if (net_ratelimit()) + printk(KERN_ERR "allocate tx mlme to tid %d failed\n", + tid); +#endif + ret = -ENOMEM; + goto err_unlock_sta; + } + /* Tx timer */ + sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function = + sta_addba_resp_timer_expired; + sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.data = + (unsigned long)&sta->timer_to_tid[tid]; + init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer); + + /* create a new queue for this aggregation */ + ret = ieee80211_ht_agg_queue_add(local, sta, tid); + + /* case no queue is available to aggregation + * don't switch to aggregation */ + if (ret) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "BA request denied - queue unavailable for" + " tid %d\n", tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + goto err_unlock_queue; + } + sdata = sta->sdata; + + /* Ok, the Addba frame hasn't been sent yet, but if the driver calls the + * call back right away, it must see that the flow has begun */ + *state |= HT_ADDBA_REQUESTED_MSK; + + /* This is slightly racy because the queue isn't stopped */ + start_seq_num = sta->tid_seq[tid]; + + if (local->ops->ampdu_action) + ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START, + ra, tid, &start_seq_num); + + if (ret) { + /* No need to requeue the packets in the agg queue, since we + * held the tx lock: no packet could be enqueued to the newly + * allocated queue */ + ieee80211_ht_agg_queue_remove(local, sta, tid, 0); +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "BA request denied - HW unavailable for" + " tid %d\n", tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + *state = HT_AGG_STATE_IDLE; + goto err_unlock_queue; + } + + /* Will put all the packets in the new SW queue */ + ieee80211_requeue(local, ieee802_1d_to_ac[tid]); + spin_unlock_bh(&sta->lock); + + /* send an addBA request */ + sta->ampdu_mlme.dialog_token_allocator++; + sta->ampdu_mlme.tid_tx[tid]->dialog_token = + sta->ampdu_mlme.dialog_token_allocator; + sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num; + + + ieee80211_send_addba_request(sta->sdata, ra, tid, + sta->ampdu_mlme.tid_tx[tid]->dialog_token, + sta->ampdu_mlme.tid_tx[tid]->ssn, + 0x40, 5000); + /* activate the timer for the recipient's addBA response */ + sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires = + jiffies + ADDBA_RESP_INTERVAL; + add_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer); +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid); +#endif + goto exit; + +err_unlock_queue: + kfree(sta->ampdu_mlme.tid_tx[tid]); + sta->ampdu_mlme.tid_tx[tid] = NULL; + ret = -EBUSY; +err_unlock_sta: + spin_unlock_bh(&sta->lock); +exit: + rcu_read_unlock(); + return ret; +} +EXPORT_SYMBOL(ieee80211_start_tx_ba_session); + +int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, + u8 *ra, u16 tid, + enum ieee80211_back_parties initiator) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct sta_info *sta; + u8 *state; + int ret = 0; + DECLARE_MAC_BUF(mac); + + if (tid >= STA_TID_NUM) + return -EINVAL; + + rcu_read_lock(); + sta = sta_info_get(local, ra); + if (!sta) { + rcu_read_unlock(); + return -ENOENT; + } + + /* check if the TID is in aggregation */ + state = &sta->ampdu_mlme.tid_state_tx[tid]; + spin_lock_bh(&sta->lock); + + if (*state != HT_AGG_STATE_OPERATIONAL) { + ret = -ENOENT; + goto stop_BA_exit; + } + +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Tx BA session stop requested for %s tid %u\n", + print_mac(mac, ra), tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + + ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]); + + *state = HT_AGG_STATE_REQ_STOP_BA_MSK | + (initiator << HT_AGG_STATE_INITIATOR_SHIFT); + + if (local->ops->ampdu_action) + ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP, + ra, tid, NULL); + + /* case HW denied going back to legacy */ + if (ret) { + WARN_ON(ret != -EBUSY); + *state = HT_AGG_STATE_OPERATIONAL; + ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); + goto stop_BA_exit; + } + +stop_BA_exit: + spin_unlock_bh(&sta->lock); + rcu_read_unlock(); + return ret; +} +EXPORT_SYMBOL(ieee80211_stop_tx_ba_session); + +void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct sta_info *sta; + u8 *state; + DECLARE_MAC_BUF(mac); + + if (tid >= STA_TID_NUM) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", + tid, STA_TID_NUM); +#endif + return; + } + + rcu_read_lock(); + sta = sta_info_get(local, ra); + if (!sta) { + rcu_read_unlock(); +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Could not find station: %s\n", + print_mac(mac, ra)); +#endif + return; + } + + state = &sta->ampdu_mlme.tid_state_tx[tid]; + spin_lock_bh(&sta->lock); + + if (!(*state & HT_ADDBA_REQUESTED_MSK)) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "addBA was not requested yet, state is %d\n", + *state); +#endif + spin_unlock_bh(&sta->lock); + rcu_read_unlock(); + return; + } + + WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK); + + *state |= HT_ADDBA_DRV_READY_MSK; + + if (*state == HT_AGG_STATE_OPERATIONAL) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid); +#endif + ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); + } + spin_unlock_bh(&sta->lock); + rcu_read_unlock(); +} +EXPORT_SYMBOL(ieee80211_start_tx_ba_cb); + +void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct sta_info *sta; + u8 *state; + int agg_queue; + DECLARE_MAC_BUF(mac); + + if (tid >= STA_TID_NUM) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", + tid, STA_TID_NUM); +#endif + return; + } + +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Stopping Tx BA session for %s tid %d\n", + print_mac(mac, ra), tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + + rcu_read_lock(); + sta = sta_info_get(local, ra); + if (!sta) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Could not find station: %s\n", + print_mac(mac, ra)); +#endif + rcu_read_unlock(); + return; + } + state = &sta->ampdu_mlme.tid_state_tx[tid]; + + /* NOTE: no need to use sta->lock in this state check, as + * ieee80211_stop_tx_ba_session will let only one stop call to + * pass through per sta/tid + */ + if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n"); +#endif + rcu_read_unlock(); + return; + } + + if (*state & HT_AGG_STATE_INITIATOR_MSK) + ieee80211_send_delba(sta->sdata, ra, tid, + WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE); + + agg_queue = sta->tid_to_tx_q[tid]; + + ieee80211_ht_agg_queue_remove(local, sta, tid, 1); + + /* We just requeued the all the frames that were in the + * removed queue, and since we might miss a softirq we do + * netif_schedule_queue. ieee80211_wake_queue is not used + * here as this queue is not necessarily stopped + */ + netif_schedule_queue(netdev_get_tx_queue(local->mdev, agg_queue)); + spin_lock_bh(&sta->lock); + *state = HT_AGG_STATE_IDLE; + sta->ampdu_mlme.addba_req_num[tid] = 0; + kfree(sta->ampdu_mlme.tid_tx[tid]); + sta->ampdu_mlme.tid_tx[tid] = NULL; + spin_unlock_bh(&sta->lock); + + rcu_read_unlock(); +} +EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb); + +void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, + const u8 *ra, u16 tid) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_ra_tid *ra_tid; + struct sk_buff *skb = dev_alloc_skb(0); + + if (unlikely(!skb)) { +#ifdef CONFIG_MAC80211_HT_DEBUG + if (net_ratelimit()) + printk(KERN_WARNING "%s: Not enough memory, " + "dropping start BA session", skb->dev->name); +#endif + return; + } + ra_tid = (struct ieee80211_ra_tid *) &skb->cb; + memcpy(&ra_tid->ra, ra, ETH_ALEN); + ra_tid->tid = tid; + + skb->pkt_type = IEEE80211_ADDBA_MSG; + skb_queue_tail(&local->skb_queue, skb); + tasklet_schedule(&local->tasklet); +} +EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe); + +void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, + const u8 *ra, u16 tid) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_ra_tid *ra_tid; + struct sk_buff *skb = dev_alloc_skb(0); + + if (unlikely(!skb)) { +#ifdef CONFIG_MAC80211_HT_DEBUG + if (net_ratelimit()) + printk(KERN_WARNING "%s: Not enough memory, " + "dropping stop BA session", skb->dev->name); +#endif + return; + } + ra_tid = (struct ieee80211_ra_tid *) &skb->cb; + memcpy(&ra_tid->ra, ra, ETH_ALEN); + ra_tid->tid = tid; + + skb->pkt_type = IEEE80211_DELBA_MSG; + skb_queue_tail(&local->skb_queue, skb); + tasklet_schedule(&local->tasklet); +} +EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe); + +/* + * After accepting the AddBA Request we activated a timer, + * resetting it after each frame that arrives from the originator. + * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed. + */ +static void sta_rx_agg_session_timer_expired(unsigned long data) +{ + /* not an elegant detour, but there is no choice as the timer passes + * only one argument, and various sta_info are needed here, so init + * flow in sta_info_create gives the TID as data, while the timer_to_id + * array gives the sta through container_of */ + u8 *ptid = (u8 *)data; + u8 *timer_to_id = ptid - *ptid; + struct sta_info *sta = container_of(timer_to_id, struct sta_info, + timer_to_tid[0]); + +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid); +#endif + ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->addr, + (u16)*ptid, WLAN_BACK_TIMER, + WLAN_REASON_QSTA_TIMEOUT); +} + +void ieee80211_process_addba_request(struct ieee80211_local *local, + struct sta_info *sta, + struct ieee80211_mgmt *mgmt, + size_t len) +{ + struct ieee80211_hw *hw = &local->hw; + struct ieee80211_conf *conf = &hw->conf; + struct tid_ampdu_rx *tid_agg_rx; + u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status; + u8 dialog_token; + int ret = -EOPNOTSUPP; + DECLARE_MAC_BUF(mac); + + /* extract session parameters from addba request frame */ + dialog_token = mgmt->u.action.u.addba_req.dialog_token; + timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout); + start_seq_num = + le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4; + + capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); + ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1; + tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; + buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; + + status = WLAN_STATUS_REQUEST_DECLINED; + + /* sanity check for incoming parameters: + * check if configuration can support the BA policy + * and if buffer size does not exceeds max value */ + if (((ba_policy != 1) + && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA))) + || (buf_size > IEEE80211_MAX_AMPDU_BUF)) { + status = WLAN_STATUS_INVALID_QOS_PARAM; +#ifdef CONFIG_MAC80211_HT_DEBUG + if (net_ratelimit()) + printk(KERN_DEBUG "AddBA Req with bad params from " + "%s on tid %u. policy %d, buffer size %d\n", + print_mac(mac, mgmt->sa), tid, ba_policy, + buf_size); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + goto end_no_lock; + } + /* determine default buffer size */ + if (buf_size == 0) { + struct ieee80211_supported_band *sband; + + sband = local->hw.wiphy->bands[conf->channel->band]; + buf_size = IEEE80211_MIN_AMPDU_BUF; + buf_size = buf_size << sband->ht_info.ampdu_factor; + } + + + /* examine state machine */ + spin_lock_bh(&sta->lock); + + if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_IDLE) { +#ifdef CONFIG_MAC80211_HT_DEBUG + if (net_ratelimit()) + printk(KERN_DEBUG "unexpected AddBA Req from " + "%s on tid %u\n", + print_mac(mac, mgmt->sa), tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + goto end; + } + + /* prepare A-MPDU MLME for Rx aggregation */ + sta->ampdu_mlme.tid_rx[tid] = + kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC); + if (!sta->ampdu_mlme.tid_rx[tid]) { +#ifdef CONFIG_MAC80211_HT_DEBUG + if (net_ratelimit()) + printk(KERN_ERR "allocate rx mlme to tid %d failed\n", + tid); +#endif + goto end; + } + /* rx timer */ + sta->ampdu_mlme.tid_rx[tid]->session_timer.function = + sta_rx_agg_session_timer_expired; + sta->ampdu_mlme.tid_rx[tid]->session_timer.data = + (unsigned long)&sta->timer_to_tid[tid]; + init_timer(&sta->ampdu_mlme.tid_rx[tid]->session_timer); + + tid_agg_rx = sta->ampdu_mlme.tid_rx[tid]; + + /* prepare reordering buffer */ + tid_agg_rx->reorder_buf = + kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC); + if (!tid_agg_rx->reorder_buf) { +#ifdef CONFIG_MAC80211_HT_DEBUG + if (net_ratelimit()) + printk(KERN_ERR "can not allocate reordering buffer " + "to tid %d\n", tid); +#endif + kfree(sta->ampdu_mlme.tid_rx[tid]); + goto end; + } + memset(tid_agg_rx->reorder_buf, 0, + buf_size * sizeof(struct sk_buff *)); + + if (local->ops->ampdu_action) + ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START, + sta->addr, tid, &start_seq_num); +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + + if (ret) { + kfree(tid_agg_rx->reorder_buf); + kfree(tid_agg_rx); + sta->ampdu_mlme.tid_rx[tid] = NULL; + goto end; + } + + /* change state and send addba resp */ + sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_OPERATIONAL; + tid_agg_rx->dialog_token = dialog_token; + tid_agg_rx->ssn = start_seq_num; + tid_agg_rx->head_seq_num = start_seq_num; + tid_agg_rx->buf_size = buf_size; + tid_agg_rx->timeout = timeout; + tid_agg_rx->stored_mpdu_num = 0; + status = WLAN_STATUS_SUCCESS; +end: + spin_unlock_bh(&sta->lock); + +end_no_lock: + ieee80211_send_addba_resp(sta->sdata, sta->addr, tid, + dialog_token, status, 1, buf_size, timeout); +} + +void ieee80211_process_addba_resp(struct ieee80211_local *local, + struct sta_info *sta, + struct ieee80211_mgmt *mgmt, + size_t len) +{ + struct ieee80211_hw *hw = &local->hw; + u16 capab; + u16 tid; + u8 *state; + + capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab); + tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; + + state = &sta->ampdu_mlme.tid_state_tx[tid]; + + spin_lock_bh(&sta->lock); + + if (!(*state & HT_ADDBA_REQUESTED_MSK)) { + spin_unlock_bh(&sta->lock); + return; + } + + if (mgmt->u.action.u.addba_resp.dialog_token != + sta->ampdu_mlme.tid_tx[tid]->dialog_token) { + spin_unlock_bh(&sta->lock); +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + return; + } + + del_timer_sync(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer); +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + if (le16_to_cpu(mgmt->u.action.u.addba_resp.status) + == WLAN_STATUS_SUCCESS) { + *state |= HT_ADDBA_RECEIVED_MSK; + sta->ampdu_mlme.addba_req_num[tid] = 0; + + if (*state == HT_AGG_STATE_OPERATIONAL) + ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); + + spin_unlock_bh(&sta->lock); + } else { + sta->ampdu_mlme.addba_req_num[tid]++; + /* this will allow the state check in stop_BA_session */ + *state = HT_AGG_STATE_OPERATIONAL; + spin_unlock_bh(&sta->lock); + ieee80211_stop_tx_ba_session(hw, sta->addr, tid, + WLAN_BACK_INITIATOR); + } +} + +void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, + struct sta_info *sta, + struct ieee80211_mgmt *mgmt, size_t len) +{ + struct ieee80211_local *local = sdata->local; + u16 tid, params; + u16 initiator; + DECLARE_MAC_BUF(mac); + + params = le16_to_cpu(mgmt->u.action.u.delba.params); + tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12; + initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11; + +#ifdef CONFIG_MAC80211_HT_DEBUG + if (net_ratelimit()) + printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n", + print_mac(mac, mgmt->sa), + initiator ? "initiator" : "recipient", tid, + mgmt->u.action.u.delba.reason_code); +#endif /* CONFIG_MAC80211_HT_DEBUG */ + + if (initiator == WLAN_BACK_INITIATOR) + ieee80211_sta_stop_rx_ba_session(sdata, sta->addr, tid, + WLAN_BACK_INITIATOR, 0); + else { /* WLAN_BACK_RECIPIENT */ + spin_lock_bh(&sta->lock); + sta->ampdu_mlme.tid_state_tx[tid] = + HT_AGG_STATE_OPERATIONAL; + spin_unlock_bh(&sta->lock); + ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid, + WLAN_BACK_RECIPIENT); + } +} diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index c68d4df..6f334e4 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -53,6 +53,12 @@ struct ieee80211_local; * increased memory use (about 2 kB of RAM per entry). */ #define IEEE80211_FRAGMENT_MAX 4 +/* + * Time after which we ignore scan results and no longer report/use + * them in any way. + */ +#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ) + struct ieee80211_fragment_entry { unsigned long first_frag_time; unsigned int seq; @@ -636,7 +642,7 @@ struct ieee80211_local { enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state; unsigned long last_scan_completed; struct delayed_work scan_work; - struct net_device *scan_dev; + struct ieee80211_sub_if_data *scan_sdata; struct ieee80211_channel *oper_channel, *scan_channel; u8 scan_ssid[IEEE80211_MAX_SSID_LEN]; size_t scan_ssid_len; @@ -903,29 +909,31 @@ int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason); void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, u32 changed); u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); -int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, - struct ieee80211_ht_info *ht_info); -int ieee80211_ht_addt_info_ie_to_ht_bss_info( - struct ieee80211_ht_addt_info *ht_add_info_ie, - struct ieee80211_ht_bss_info *bss_info); -void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, const u8 *da, - u16 tid, u8 dialog_token, u16 start_seq_num, - u16 agg_size, u16 timeout); -void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, const u8 *da, u16 tid, - u16 initiator, u16 reason_code); -void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn); - -void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da, - u16 tid, u16 initiator, u16 reason); -void sta_addba_resp_timer_expired(unsigned long data); -void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr); u64 ieee80211_sta_get_rates(struct ieee80211_local *local, struct ieee802_11_elems *elems, enum ieee80211_band band); -void ieee80211_sta_tx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - int encrypt); +void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, + u8 *ssid, size_t ssid_len); void ieee802_11_parse_elems(u8 *start, size_t len, - struct ieee802_11_elems *elems); + struct ieee802_11_elems *elems); +void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); +int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata, + u8 *ssid, size_t ssid_len); +struct ieee80211_sta_bss * +ieee80211_bss_info_update(struct ieee80211_local *local, + struct ieee80211_rx_status *rx_status, + struct ieee80211_mgmt *mgmt, + size_t len, + struct ieee802_11_elems *elems, + int freq, bool beacon); +struct ieee80211_sta_bss * +ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq, + u8 *ssid, u8 ssid_len); +struct ieee80211_sta_bss * +ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, + u8 *ssid, u8 ssid_len); +void ieee80211_rx_bss_put(struct ieee80211_local *local, + struct ieee80211_sta_bss *bss); #ifdef CONFIG_MAC80211_MESH void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata); @@ -951,6 +959,34 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev); int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); +/* HT */ +int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, + struct ieee80211_ht_info *ht_info); +int ieee80211_ht_addt_info_ie_to_ht_bss_info( + struct ieee80211_ht_addt_info *ht_add_info_ie, + struct ieee80211_ht_bss_info *bss_info); +void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn); + +void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da, + u16 tid, u16 initiator, u16 reason); +void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr); +void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, + struct sta_info *sta, + struct ieee80211_mgmt *mgmt, size_t len); +void ieee80211_process_addba_resp(struct ieee80211_local *local, + struct sta_info *sta, + struct ieee80211_mgmt *mgmt, + size_t len); +void ieee80211_process_addba_request(struct ieee80211_local *local, + struct sta_info *sta, + struct ieee80211_mgmt *mgmt, + size_t len); + +/* Spectrum management */ +void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, + size_t len); + /* utility functions/constants */ extern void *mac80211_wiphy_privid; /* for wiphy privid */ extern const unsigned char rfc1042_header[6]; @@ -961,6 +997,9 @@ int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, int rate, int erp, int short_preamble); void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, struct ieee80211_hdr *hdr); +void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata); +void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, + int encrypt); #ifdef CONFIG_MAC80211_NOINLINE #define debug_noinline noinline diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 4a623b8..672cec6 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -31,11 +31,11 @@ static void ieee80211_teardown_sdata(struct net_device *dev) int flushed; int i; - ieee80211_debugfs_remove_netdev(sdata); - /* free extra data */ ieee80211_free_keys(sdata); + ieee80211_debugfs_remove_netdev(sdata); + for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) __skb_queue_purge(&sdata->fragments[i].skb_list); sdata->fragment_next = 0; diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 396cfb2..6a7f4fa 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -399,8 +399,15 @@ static int ieee80211_open(struct net_device *dev) atomic_inc(&local->iff_promiscs); local->open_count++; - if (need_hw_reconfig) + if (need_hw_reconfig) { ieee80211_hw_config(local); + /* + * set default queue parameters so drivers don't + * need to initialise the hardware if the hardware + * doesn't start up with sane defaults + */ + ieee80211_set_wmm_default(sdata); + } /* * ieee80211_sta_work is disabled while network interface @@ -551,7 +558,7 @@ static int ieee80211_stop(struct net_device *dev) synchronize_rcu(); skb_queue_purge(&sdata->u.sta.skb_queue); - if (local->scan_dev == sdata->dev) { + if (local->scan_sdata == sdata) { if (!local->ops->hw_scan) { local->sta_sw_scanning = 0; cancel_delayed_work(&local->scan_work); @@ -593,379 +600,6 @@ static int ieee80211_stop(struct net_device *dev) return 0; } -int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata; - u16 start_seq_num; - u8 *state; - int ret; - DECLARE_MAC_BUF(mac); - - if (tid >= STA_TID_NUM) - return -EINVAL; - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Open BA session requested for %s tid %u\n", - print_mac(mac, ra), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - rcu_read_lock(); - - sta = sta_info_get(local, ra); - if (!sta) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Could not find the station\n"); -#endif - ret = -ENOENT; - goto exit; - } - - spin_lock_bh(&sta->lock); - - /* we have tried too many times, receiver does not want A-MPDU */ - if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) { - ret = -EBUSY; - goto err_unlock_sta; - } - - state = &sta->ampdu_mlme.tid_state_tx[tid]; - /* check if the TID is not in aggregation flow already */ - if (*state != HT_AGG_STATE_IDLE) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - session is not " - "idle on tid %u\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - ret = -EAGAIN; - goto err_unlock_sta; - } - - /* prepare A-MPDU MLME for Tx aggregation */ - sta->ampdu_mlme.tid_tx[tid] = - kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC); - if (!sta->ampdu_mlme.tid_tx[tid]) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_ERR "allocate tx mlme to tid %d failed\n", - tid); -#endif - ret = -ENOMEM; - goto err_unlock_sta; - } - /* Tx timer */ - sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function = - sta_addba_resp_timer_expired; - sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.data = - (unsigned long)&sta->timer_to_tid[tid]; - init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer); - - /* create a new queue for this aggregation */ - ret = ieee80211_ht_agg_queue_add(local, sta, tid); - - /* case no queue is available to aggregation - * don't switch to aggregation */ - if (ret) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - queue unavailable for" - " tid %d\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - goto err_unlock_queue; - } - sdata = sta->sdata; - - /* Ok, the Addba frame hasn't been sent yet, but if the driver calls the - * call back right away, it must see that the flow has begun */ - *state |= HT_ADDBA_REQUESTED_MSK; - - /* This is slightly racy because the queue isn't stopped */ - start_seq_num = sta->tid_seq[tid]; - - if (local->ops->ampdu_action) - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START, - ra, tid, &start_seq_num); - - if (ret) { - /* No need to requeue the packets in the agg queue, since we - * held the tx lock: no packet could be enqueued to the newly - * allocated queue */ - ieee80211_ht_agg_queue_remove(local, sta, tid, 0); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - HW unavailable for" - " tid %d\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - *state = HT_AGG_STATE_IDLE; - goto err_unlock_queue; - } - - /* Will put all the packets in the new SW queue */ - ieee80211_requeue(local, ieee802_1d_to_ac[tid]); - spin_unlock_bh(&sta->lock); - - /* send an addBA request */ - sta->ampdu_mlme.dialog_token_allocator++; - sta->ampdu_mlme.tid_tx[tid]->dialog_token = - sta->ampdu_mlme.dialog_token_allocator; - sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num; - - - ieee80211_send_addba_request(sta->sdata, ra, tid, - sta->ampdu_mlme.tid_tx[tid]->dialog_token, - sta->ampdu_mlme.tid_tx[tid]->ssn, - 0x40, 5000); - /* activate the timer for the recipient's addBA response */ - sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires = - jiffies + ADDBA_RESP_INTERVAL; - add_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid); -#endif - goto exit; - -err_unlock_queue: - kfree(sta->ampdu_mlme.tid_tx[tid]); - sta->ampdu_mlme.tid_tx[tid] = NULL; - ret = -EBUSY; -err_unlock_sta: - spin_unlock_bh(&sta->lock); -exit: - rcu_read_unlock(); - return ret; -} -EXPORT_SYMBOL(ieee80211_start_tx_ba_session); - -int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, - u8 *ra, u16 tid, - enum ieee80211_back_parties initiator) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - u8 *state; - int ret = 0; - DECLARE_MAC_BUF(mac); - - if (tid >= STA_TID_NUM) - return -EINVAL; - - rcu_read_lock(); - sta = sta_info_get(local, ra); - if (!sta) { - rcu_read_unlock(); - return -ENOENT; - } - - /* check if the TID is in aggregation */ - state = &sta->ampdu_mlme.tid_state_tx[tid]; - spin_lock_bh(&sta->lock); - - if (*state != HT_AGG_STATE_OPERATIONAL) { - ret = -ENOENT; - goto stop_BA_exit; - } - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Tx BA session stop requested for %s tid %u\n", - print_mac(mac, ra), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]); - - *state = HT_AGG_STATE_REQ_STOP_BA_MSK | - (initiator << HT_AGG_STATE_INITIATOR_SHIFT); - - if (local->ops->ampdu_action) - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP, - ra, tid, NULL); - - /* case HW denied going back to legacy */ - if (ret) { - WARN_ON(ret != -EBUSY); - *state = HT_AGG_STATE_OPERATIONAL; - ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); - goto stop_BA_exit; - } - -stop_BA_exit: - spin_unlock_bh(&sta->lock); - rcu_read_unlock(); - return ret; -} -EXPORT_SYMBOL(ieee80211_stop_tx_ba_session); - -void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - u8 *state; - DECLARE_MAC_BUF(mac); - - if (tid >= STA_TID_NUM) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); -#endif - return; - } - - rcu_read_lock(); - sta = sta_info_get(local, ra); - if (!sta) { - rcu_read_unlock(); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Could not find station: %s\n", - print_mac(mac, ra)); -#endif - return; - } - - state = &sta->ampdu_mlme.tid_state_tx[tid]; - spin_lock_bh(&sta->lock); - - if (!(*state & HT_ADDBA_REQUESTED_MSK)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "addBA was not requested yet, state is %d\n", - *state); -#endif - spin_unlock_bh(&sta->lock); - rcu_read_unlock(); - return; - } - - WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK); - - *state |= HT_ADDBA_DRV_READY_MSK; - - if (*state == HT_AGG_STATE_OPERATIONAL) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid); -#endif - ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); - } - spin_unlock_bh(&sta->lock); - rcu_read_unlock(); -} -EXPORT_SYMBOL(ieee80211_start_tx_ba_cb); - -void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - u8 *state; - int agg_queue; - DECLARE_MAC_BUF(mac); - - if (tid >= STA_TID_NUM) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); -#endif - return; - } - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Stopping Tx BA session for %s tid %d\n", - print_mac(mac, ra), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - rcu_read_lock(); - sta = sta_info_get(local, ra); - if (!sta) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Could not find station: %s\n", - print_mac(mac, ra)); -#endif - rcu_read_unlock(); - return; - } - state = &sta->ampdu_mlme.tid_state_tx[tid]; - - /* NOTE: no need to use sta->lock in this state check, as - * ieee80211_stop_tx_ba_session will let only one stop call to - * pass through per sta/tid - */ - if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n"); -#endif - rcu_read_unlock(); - return; - } - - if (*state & HT_AGG_STATE_INITIATOR_MSK) - ieee80211_send_delba(sta->sdata, ra, tid, - WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE); - - agg_queue = sta->tid_to_tx_q[tid]; - - ieee80211_ht_agg_queue_remove(local, sta, tid, 1); - - /* We just requeued the all the frames that were in the - * removed queue, and since we might miss a softirq we do - * netif_schedule_queue. ieee80211_wake_queue is not used - * here as this queue is not necessarily stopped - */ - netif_schedule_queue(netdev_get_tx_queue(local->mdev, agg_queue)); - spin_lock_bh(&sta->lock); - *state = HT_AGG_STATE_IDLE; - sta->ampdu_mlme.addba_req_num[tid] = 0; - kfree(sta->ampdu_mlme.tid_tx[tid]); - sta->ampdu_mlme.tid_tx[tid] = NULL; - spin_unlock_bh(&sta->lock); - - rcu_read_unlock(); -} -EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb); - -void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, - const u8 *ra, u16 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_ra_tid *ra_tid; - struct sk_buff *skb = dev_alloc_skb(0); - - if (unlikely(!skb)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_WARNING "%s: Not enough memory, " - "dropping start BA session", skb->dev->name); -#endif - return; - } - ra_tid = (struct ieee80211_ra_tid *) &skb->cb; - memcpy(&ra_tid->ra, ra, ETH_ALEN); - ra_tid->tid = tid; - - skb->pkt_type = IEEE80211_ADDBA_MSG; - skb_queue_tail(&local->skb_queue, skb); - tasklet_schedule(&local->tasklet); -} -EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe); - -void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, - const u8 *ra, u16 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_ra_tid *ra_tid; - struct sk_buff *skb = dev_alloc_skb(0); - - if (unlikely(!skb)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_WARNING "%s: Not enough memory, " - "dropping stop BA session", skb->dev->name); -#endif - return; - } - ra_tid = (struct ieee80211_ra_tid *) &skb->cb; - memcpy(&ra_tid->ra, ra, ETH_ALEN); - ra_tid->tid = tid; - - skb->pkt_type = IEEE80211_DELBA_MSG; - skb_queue_tail(&local->skb_queue, skb); - tasklet_schedule(&local->tasklet); -} -EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe); - static void ieee80211_set_multicast_list(struct net_device *dev) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); @@ -1140,8 +774,8 @@ u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht, ht_conf.ht_supported = 1; ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap; - ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS); - ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS; + ht_conf.cap &= ~(IEEE80211_HT_CAP_SM_PS); + ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_SM_PS; ht_bss_conf.primary_channel = req_bss_cap->primary_channel; ht_bss_conf.bss_cap = req_bss_cap->bss_cap; ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode; diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index eeb0ce2..210d6b8 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -149,7 +149,7 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, pos += ETH_ALEN; memcpy(pos, &dst_dsn, 4); - ieee80211_sta_tx(sdata, skb, 0); + ieee80211_tx_skb(sdata, skb, 0); return 0; } @@ -198,7 +198,7 @@ int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra, pos += ETH_ALEN; memcpy(pos, &dst_dsn, 4); - ieee80211_sta_tx(sdata, skb, 0); + ieee80211_tx_skb(sdata, skb, 0); return 0; } @@ -581,6 +581,10 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata, size_t baselen; u32 last_hop_metric; + /* need action_code */ + if (len < IEEE80211_MIN_ACTION_SIZE + 1) + return; + baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt; ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable, len - baselen, &elems); diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 7714b0e..7356462 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -217,7 +217,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, memcpy(pos, &reason, 2); } - ieee80211_sta_tx(sdata, skb, 0); + ieee80211_tx_skb(sdata, skb, 0); return 0; } @@ -421,6 +421,10 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m DECLARE_MAC_BUF(mac); #endif + /* need action_code, aux */ + if (len < IEEE80211_MIN_ACTION_SIZE + 3) + return; + if (is_multicast_ether_addr(mgmt->da)) { mpl_dbg("Mesh plink: ignore frame from multicast address"); return; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index df12e746..2c06f69 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -11,11 +11,6 @@ * published by the Free Software Foundation. */ -/* TODO: - * order BSS list by RSSI(?) ("quality of AP") - * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE, - * SSID) - */ #include <linux/delay.h> #include <linux/if_ether.h> #include <linux/skbuff.h> @@ -26,9 +21,8 @@ #include <linux/etherdevice.h> #include <linux/rtnetlink.h> #include <net/iw_handler.h> -#include <asm/types.h> - #include <net/mac80211.h> + #include "ieee80211_i.h" #include "rate.h" #include "led.h" @@ -47,10 +41,6 @@ #define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ) #define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ) -#define IEEE80211_PROBE_DELAY (HZ / 33) -#define IEEE80211_CHANNEL_TIME (HZ / 33) -#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5) -#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ) #define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ) #define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ) #define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ) @@ -58,219 +48,396 @@ #define IEEE80211_IBSS_MAX_STA_ENTRIES 128 -#define ERP_INFO_USE_PROTECTION BIT(1) +/* utils */ +static int ecw2cw(int ecw) +{ + return (1 << ecw) - 1; +} -/* mgmt header + 1 byte action code */ -#define IEEE80211_MIN_ACTION_SIZE (24 + 1) +static u8 *ieee80211_bss_get_ie(struct ieee80211_sta_bss *bss, u8 ie) +{ + u8 *end, *pos; -#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 -#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C -#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0 -#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 -#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 + pos = bss->ies; + if (pos == NULL) + return NULL; + end = pos + bss->ies_len; -/* next values represent the buffer size for A-MPDU frame. - * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) */ -#define IEEE80211_MIN_AMPDU_BUF 0x8 -#define IEEE80211_MAX_AMPDU_BUF 0x40 + while (pos + 1 < end) { + if (pos + 2 + pos[1] > end) + break; + if (pos[0] == ie) + return pos; + pos += 2 + pos[1]; + } -static void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, - u8 *ssid, size_t ssid_len); -static struct ieee80211_sta_bss * -ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, - u8 *ssid, u8 ssid_len); -static void ieee80211_rx_bss_put(struct ieee80211_local *local, - struct ieee80211_sta_bss *bss); -static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta); -static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata); -static int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *sdata, - u8 *ssid, size_t ssid_len); -static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta); -static void sta_rx_agg_session_timer_expired(unsigned long data); + return NULL; +} +static int ieee80211_compatible_rates(struct ieee80211_sta_bss *bss, + struct ieee80211_supported_band *sband, + u64 *rates) +{ + int i, j, count; + *rates = 0; + count = 0; + for (i = 0; i < bss->supp_rates_len; i++) { + int rate = (bss->supp_rates[i] & 0x7F) * 5; + + for (j = 0; j < sband->n_bitrates; j++) + if (sband->bitrates[j].bitrate == rate) { + *rates |= BIT(j); + count++; + break; + } + } -void ieee802_11_parse_elems(u8 *start, size_t len, - struct ieee802_11_elems *elems) + return count; +} + +/* frame sending functions */ +static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta, + int transaction, u8 *extra, size_t extra_len, + int encrypt) { - size_t left = len; - u8 *pos = start; + struct ieee80211_local *local = sdata->local; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; - memset(elems, 0, sizeof(*elems)); - elems->ie_start = start; - elems->total_len = len; + skb = dev_alloc_skb(local->hw.extra_tx_headroom + + sizeof(*mgmt) + 6 + extra_len); + if (!skb) { + printk(KERN_DEBUG "%s: failed to allocate buffer for auth " + "frame\n", sdata->dev->name); + return; + } + skb_reserve(skb, local->hw.extra_tx_headroom); - while (left >= 2) { - u8 id, elen; + mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6); + memset(mgmt, 0, 24 + 6); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_AUTH); + if (encrypt) + mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); + memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); + mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg); + mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); + ifsta->auth_transaction = transaction + 1; + mgmt->u.auth.status_code = cpu_to_le16(0); + if (extra) + memcpy(skb_put(skb, extra_len), extra, extra_len); - id = *pos++; - elen = *pos++; - left -= 2; + ieee80211_tx_skb(sdata, skb, encrypt); +} - if (elen > left) - return; +void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, + u8 *ssid, size_t ssid_len) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + u8 *pos, *supp_rates, *esupp_rates = NULL; + int i; - switch (id) { - case WLAN_EID_SSID: - elems->ssid = pos; - elems->ssid_len = elen; - break; - case WLAN_EID_SUPP_RATES: - elems->supp_rates = pos; - elems->supp_rates_len = elen; - break; - case WLAN_EID_FH_PARAMS: - elems->fh_params = pos; - elems->fh_params_len = elen; - break; - case WLAN_EID_DS_PARAMS: - elems->ds_params = pos; - elems->ds_params_len = elen; - break; - case WLAN_EID_CF_PARAMS: - elems->cf_params = pos; - elems->cf_params_len = elen; - break; - case WLAN_EID_TIM: - elems->tim = pos; - elems->tim_len = elen; - break; - case WLAN_EID_IBSS_PARAMS: - elems->ibss_params = pos; - elems->ibss_params_len = elen; - break; - case WLAN_EID_CHALLENGE: - elems->challenge = pos; - elems->challenge_len = elen; - break; - case WLAN_EID_WPA: - if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && - pos[2] == 0xf2) { - /* Microsoft OUI (00:50:F2) */ - if (pos[3] == 1) { - /* OUI Type 1 - WPA IE */ - elems->wpa = pos; - elems->wpa_len = elen; - } else if (elen >= 5 && pos[3] == 2) { - if (pos[4] == 0) { - elems->wmm_info = pos; - elems->wmm_info_len = elen; - } else if (pos[4] == 1) { - elems->wmm_param = pos; - elems->wmm_param_len = elen; - } - } - } - break; - case WLAN_EID_RSN: - elems->rsn = pos; - elems->rsn_len = elen; - break; - case WLAN_EID_ERP_INFO: - elems->erp_info = pos; - elems->erp_info_len = elen; - break; - case WLAN_EID_EXT_SUPP_RATES: - elems->ext_supp_rates = pos; - elems->ext_supp_rates_len = elen; - break; - case WLAN_EID_HT_CAPABILITY: - elems->ht_cap_elem = pos; - elems->ht_cap_elem_len = elen; - break; - case WLAN_EID_HT_EXTRA_INFO: - elems->ht_info_elem = pos; - elems->ht_info_elem_len = elen; - break; - case WLAN_EID_MESH_ID: - elems->mesh_id = pos; - elems->mesh_id_len = elen; - break; - case WLAN_EID_MESH_CONFIG: - elems->mesh_config = pos; - elems->mesh_config_len = elen; - break; - case WLAN_EID_PEER_LINK: - elems->peer_link = pos; - elems->peer_link_len = elen; - break; - case WLAN_EID_PREQ: - elems->preq = pos; - elems->preq_len = elen; - break; - case WLAN_EID_PREP: - elems->prep = pos; - elems->prep_len = elen; - break; - case WLAN_EID_PERR: - elems->perr = pos; - elems->perr_len = elen; - break; - case WLAN_EID_CHANNEL_SWITCH: - elems->ch_switch_elem = pos; - elems->ch_switch_elem_len = elen; - break; - case WLAN_EID_QUIET: - if (!elems->quiet_elem) { - elems->quiet_elem = pos; - elems->quiet_elem_len = elen; + skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200); + if (!skb) { + printk(KERN_DEBUG "%s: failed to allocate buffer for probe " + "request\n", sdata->dev->name); + return; + } + skb_reserve(skb, local->hw.extra_tx_headroom); + + mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); + memset(mgmt, 0, 24); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_PROBE_REQ); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + if (dst) { + memcpy(mgmt->da, dst, ETH_ALEN); + memcpy(mgmt->bssid, dst, ETH_ALEN); + } else { + memset(mgmt->da, 0xff, ETH_ALEN); + memset(mgmt->bssid, 0xff, ETH_ALEN); + } + pos = skb_put(skb, 2 + ssid_len); + *pos++ = WLAN_EID_SSID; + *pos++ = ssid_len; + memcpy(pos, ssid, ssid_len); + + supp_rates = skb_put(skb, 2); + supp_rates[0] = WLAN_EID_SUPP_RATES; + supp_rates[1] = 0; + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + + for (i = 0; i < sband->n_bitrates; i++) { + struct ieee80211_rate *rate = &sband->bitrates[i]; + if (esupp_rates) { + pos = skb_put(skb, 1); + esupp_rates[1]++; + } else if (supp_rates[1] == 8) { + esupp_rates = skb_put(skb, 3); + esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES; + esupp_rates[1] = 1; + pos = &esupp_rates[2]; + } else { + pos = skb_put(skb, 1); + supp_rates[1]++; + } + *pos = rate->bitrate / 5; + } + + ieee80211_tx_skb(sdata, skb, 0); +} + +static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) +{ + struct ieee80211_local *local = sdata->local; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + u8 *pos, *ies, *ht_add_ie; + int i, len, count, rates_len, supp_rates_len; + u16 capab; + struct ieee80211_sta_bss *bss; + int wmm = 0; + struct ieee80211_supported_band *sband; + u64 rates = 0; + + skb = dev_alloc_skb(local->hw.extra_tx_headroom + + sizeof(*mgmt) + 200 + ifsta->extra_ie_len + + ifsta->ssid_len); + if (!skb) { + printk(KERN_DEBUG "%s: failed to allocate buffer for assoc " + "frame\n", sdata->dev->name); + return; + } + skb_reserve(skb, local->hw.extra_tx_headroom); + + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + + capab = ifsta->capab; + + if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) { + if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) + capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; + if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) + capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; + } + + bss = ieee80211_rx_bss_get(local, ifsta->bssid, + local->hw.conf.channel->center_freq, + ifsta->ssid, ifsta->ssid_len); + if (bss) { + if (bss->capability & WLAN_CAPABILITY_PRIVACY) + capab |= WLAN_CAPABILITY_PRIVACY; + if (bss->wmm_used) + wmm = 1; + + /* get all rates supported by the device and the AP as + * some APs don't like getting a superset of their rates + * in the association request (e.g. D-Link DAP 1353 in + * b-only mode) */ + rates_len = ieee80211_compatible_rates(bss, sband, &rates); + + if ((bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) && + (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)) + capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; + + ieee80211_rx_bss_put(local, bss); + } else { + rates = ~0; + rates_len = sband->n_bitrates; + } + + mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); + memset(mgmt, 0, 24); + memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); + + if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) { + skb_put(skb, 10); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_REASSOC_REQ); + mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab); + mgmt->u.reassoc_req.listen_interval = + cpu_to_le16(local->hw.conf.listen_interval); + memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid, + ETH_ALEN); + } else { + skb_put(skb, 4); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ASSOC_REQ); + mgmt->u.assoc_req.capab_info = cpu_to_le16(capab); + mgmt->u.reassoc_req.listen_interval = + cpu_to_le16(local->hw.conf.listen_interval); + } + + /* SSID */ + ies = pos = skb_put(skb, 2 + ifsta->ssid_len); + *pos++ = WLAN_EID_SSID; + *pos++ = ifsta->ssid_len; + memcpy(pos, ifsta->ssid, ifsta->ssid_len); + + /* add all rates which were marked to be used above */ + supp_rates_len = rates_len; + if (supp_rates_len > 8) + supp_rates_len = 8; + + len = sband->n_bitrates; + pos = skb_put(skb, supp_rates_len + 2); + *pos++ = WLAN_EID_SUPP_RATES; + *pos++ = supp_rates_len; + + count = 0; + for (i = 0; i < sband->n_bitrates; i++) { + if (BIT(i) & rates) { + int rate = sband->bitrates[i].bitrate; + *pos++ = (u8) (rate / 5); + if (++count == 8) + break; + } + } + + if (rates_len > count) { + pos = skb_put(skb, rates_len - count + 2); + *pos++ = WLAN_EID_EXT_SUPP_RATES; + *pos++ = rates_len - count; + + for (i++; i < sband->n_bitrates; i++) { + if (BIT(i) & rates) { + int rate = sband->bitrates[i].bitrate; + *pos++ = (u8) (rate / 5); } - elems->num_of_quiet_elem++; - break; - case WLAN_EID_COUNTRY: - elems->country_elem = pos; - elems->country_elem_len = elen; - break; - case WLAN_EID_PWR_CONSTRAINT: - elems->pwr_constr_elem = pos; - elems->pwr_constr_elem_len = elen; - break; - default: - break; } + } + + if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT) { + /* 1. power capabilities */ + pos = skb_put(skb, 4); + *pos++ = WLAN_EID_PWR_CAPABILITY; + *pos++ = 2; + *pos++ = 0; /* min tx power */ + *pos++ = local->hw.conf.channel->max_power; /* max tx power */ - left -= elen; - pos += elen; + /* 2. supported channels */ + /* TODO: get this in reg domain format */ + pos = skb_put(skb, 2 * sband->n_channels + 2); + *pos++ = WLAN_EID_SUPPORTED_CHANNELS; + *pos++ = 2 * sband->n_channels; + for (i = 0; i < sband->n_channels; i++) { + *pos++ = ieee80211_frequency_to_channel( + sband->channels[i].center_freq); + *pos++ = 1; /* one channel in the subband*/ + } } -} + if (ifsta->extra_ie) { + pos = skb_put(skb, ifsta->extra_ie_len); + memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len); + } -static u8 * ieee80211_bss_get_ie(struct ieee80211_sta_bss *bss, u8 ie) -{ - u8 *end, *pos; + if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) { + pos = skb_put(skb, 9); + *pos++ = WLAN_EID_VENDOR_SPECIFIC; + *pos++ = 7; /* len */ + *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */ + *pos++ = 0x50; + *pos++ = 0xf2; + *pos++ = 2; /* WME */ + *pos++ = 0; /* WME info */ + *pos++ = 1; /* WME ver */ + *pos++ = 0; + } - pos = bss->ies; - if (pos == NULL) - return NULL; - end = pos + bss->ies_len; + /* wmm support is a must to HT */ + if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) && + sband->ht_info.ht_supported && + (ht_add_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_EXTRA_INFO))) { + struct ieee80211_ht_addt_info *ht_add_info = + (struct ieee80211_ht_addt_info *)ht_add_ie; + u16 cap = sband->ht_info.cap; + __le16 tmp; + u32 flags = local->hw.conf.channel->flags; - while (pos + 1 < end) { - if (pos + 2 + pos[1] > end) + switch (ht_add_info->ht_param & IEEE80211_HT_IE_CHA_SEC_OFFSET) { + case IEEE80211_HT_IE_CHA_SEC_ABOVE: + if (flags & IEEE80211_CHAN_NO_FAT_ABOVE) { + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH; + cap &= ~IEEE80211_HT_CAP_SGI_40; + } break; - if (pos[0] == ie) - return pos; - pos += 2 + pos[1]; + case IEEE80211_HT_IE_CHA_SEC_BELOW: + if (flags & IEEE80211_CHAN_NO_FAT_BELOW) { + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH; + cap &= ~IEEE80211_HT_CAP_SGI_40; + } + break; + } + + tmp = cpu_to_le16(cap); + pos = skb_put(skb, sizeof(struct ieee80211_ht_cap)+2); + *pos++ = WLAN_EID_HT_CAPABILITY; + *pos++ = sizeof(struct ieee80211_ht_cap); + memset(pos, 0, sizeof(struct ieee80211_ht_cap)); + memcpy(pos, &tmp, sizeof(u16)); + pos += sizeof(u16); + /* TODO: needs a define here for << 2 */ + *pos++ = sband->ht_info.ampdu_factor | + (sband->ht_info.ampdu_density << 2); + memcpy(pos, sband->ht_info.supp_mcs_set, 16); } - return NULL; + kfree(ifsta->assocreq_ies); + ifsta->assocreq_ies_len = (skb->data + skb->len) - ies; + ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL); + if (ifsta->assocreq_ies) + memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len); + + ieee80211_tx_skb(sdata, skb, 0); } -static int ecw2cw(int ecw) +static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, + u16 stype, u16 reason) { - return (1 << ecw) - 1; -} + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt)); + if (!skb) { + printk(KERN_DEBUG "%s: failed to allocate buffer for " + "deauth/disassoc frame\n", sdata->dev->name); + return; + } + skb_reserve(skb, local->hw.extra_tx_headroom); + mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); + memset(mgmt, 0, 24); + memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); + skb_put(skb, 2); + /* u.deauth.reason_code == u.disassoc.reason_code */ + mgmt->u.deauth.reason_code = cpu_to_le16(reason); + + ieee80211_tx_skb(sdata, skb, 0); +} + +/* MLME */ static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, - struct ieee80211_sta_bss *bss, - int ibss) + struct ieee80211_sta_bss *bss) { struct ieee80211_local *local = sdata->local; int i, have_higher_than_11mbit = 0; - /* cf. IEEE 802.11 9.2.12 */ for (i = 0; i < bss->supp_rates_len; i++) if ((bss->supp_rates[i] & 0x7f) * 5 > 110) @@ -282,26 +449,7 @@ static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, else sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; - - if (local->ops->conf_tx) { - struct ieee80211_tx_queue_params qparam; - - memset(&qparam, 0, sizeof(qparam)); - - qparam.aifs = 2; - - if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ && - !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)) - qparam.cw_min = 31; - else - qparam.cw_min = 15; - - qparam.cw_max = 1023; - qparam.txop = 0; - - for (i = 0; i < local_to_hw(local)->queues; i++) - local->ops->conf_tx(local_to_hw(local), i, &qparam); - } + ieee80211_set_wmm_default(sdata); } static void ieee80211_sta_wmm_params(struct ieee80211_local *local, @@ -451,50 +599,15 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, return changed; } -int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, - struct ieee80211_ht_info *ht_info) +static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) { - - if (ht_info == NULL) - return -EINVAL; - - memset(ht_info, 0, sizeof(*ht_info)); - - if (ht_cap_ie) { - u8 ampdu_info = ht_cap_ie->ampdu_params_info; - - ht_info->ht_supported = 1; - ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info); - ht_info->ampdu_factor = - ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR; - ht_info->ampdu_density = - (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2; - memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16); - } else - ht_info->ht_supported = 0; - - return 0; -} - -int ieee80211_ht_addt_info_ie_to_ht_bss_info( - struct ieee80211_ht_addt_info *ht_add_info_ie, - struct ieee80211_ht_bss_info *bss_info) -{ - if (bss_info == NULL) - return -EINVAL; - - memset(bss_info, 0, sizeof(*bss_info)); - - if (ht_add_info_ie) { - u16 op_mode; - op_mode = le16_to_cpu(ht_add_info_ie->operation_mode); - - bss_info->primary_channel = ht_add_info_ie->control_chan; - bss_info->bss_cap = ht_add_info_ie->ht_param; - bss_info->bss_op_mode = (u8)(op_mode & 0xff); - } - - return 0; + union iwreq_data wrqu; + memset(&wrqu, 0, sizeof(wrqu)); + if (ifsta->flags & IEEE80211_STA_ASSOCIATED) + memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN); + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL); } static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata, @@ -518,134 +631,54 @@ static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata, static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta, - bool assoc) + struct ieee80211_if_sta *ifsta) { struct ieee80211_local *local = sdata->local; struct ieee80211_conf *conf = &local_to_hw(local)->conf; - union iwreq_data wrqu; u32 changed = BSS_CHANGED_ASSOC; - if (assoc) { - struct ieee80211_sta_bss *bss; - - ifsta->flags |= IEEE80211_STA_ASSOCIATED; - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return; - - bss = ieee80211_rx_bss_get(local, ifsta->bssid, - conf->channel->center_freq, - ifsta->ssid, ifsta->ssid_len); - if (bss) { - /* set timing information */ - sdata->bss_conf.beacon_int = bss->beacon_int; - sdata->bss_conf.timestamp = bss->timestamp; - sdata->bss_conf.dtim_period = bss->dtim_period; - - changed |= ieee80211_handle_bss_capability(sdata, bss); + struct ieee80211_sta_bss *bss; - ieee80211_rx_bss_put(local, bss); - } + ifsta->flags |= IEEE80211_STA_ASSOCIATED; - if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { - changed |= BSS_CHANGED_HT; - sdata->bss_conf.assoc_ht = 1; - sdata->bss_conf.ht_conf = &conf->ht_conf; - sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf; - } + if (sdata->vif.type != IEEE80211_IF_TYPE_STA) + return; - ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET; - memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN); - memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN); - ieee80211_sta_send_associnfo(sdata, ifsta); - } else { - netif_carrier_off(sdata->dev); - ieee80211_sta_tear_down_BA_sessions(sdata, ifsta->bssid); - ifsta->flags &= ~IEEE80211_STA_ASSOCIATED; - changed |= ieee80211_reset_erp_info(sdata); + bss = ieee80211_rx_bss_get(local, ifsta->bssid, + conf->channel->center_freq, + ifsta->ssid, ifsta->ssid_len); + if (bss) { + /* set timing information */ + sdata->bss_conf.beacon_int = bss->beacon_int; + sdata->bss_conf.timestamp = bss->timestamp; + sdata->bss_conf.dtim_period = bss->dtim_period; - sdata->bss_conf.assoc_ht = 0; - sdata->bss_conf.ht_conf = NULL; - sdata->bss_conf.ht_bss_conf = NULL; + changed |= ieee80211_handle_bss_capability(sdata, bss); - memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); + ieee80211_rx_bss_put(local, bss); } - ifsta->last_probe = jiffies; - ieee80211_led_assoc(local, assoc); - - sdata->bss_conf.assoc = assoc; - ieee80211_bss_info_change_notify(sdata, changed); - - if (assoc) - netif_carrier_on(sdata->dev); - - wrqu.ap_addr.sa_family = ARPHRD_ETHER; - wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL); -} -static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta, int deauth) -{ - if (deauth) { - ifsta->direct_probe_tries = 0; - ifsta->auth_tries = 0; + if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { + changed |= BSS_CHANGED_HT; + sdata->bss_conf.assoc_ht = 1; + sdata->bss_conf.ht_conf = &conf->ht_conf; + sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf; } - ifsta->assoc_scan_tries = 0; - ifsta->assoc_tries = 0; - ieee80211_set_associated(sdata, ifsta, 0); -} - -void ieee80211_sta_tx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - int encrypt) -{ - skb->dev = sdata->local->mdev; - skb_set_mac_header(skb, 0); - skb_set_network_header(skb, 0); - skb_set_transport_header(skb, 0); - skb->iif = sdata->dev->ifindex; - skb->do_not_encrypt = !encrypt; + ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET; + memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN); + ieee80211_sta_send_associnfo(sdata, ifsta); - dev_queue_xmit(skb); -} - - -static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta, - int transaction, u8 *extra, size_t extra_len, - int encrypt) -{ - struct ieee80211_local *local = sdata->local; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; + ifsta->last_probe = jiffies; + ieee80211_led_assoc(local, 1); - skb = dev_alloc_skb(local->hw.extra_tx_headroom + - sizeof(*mgmt) + 6 + extra_len); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for auth " - "frame\n", sdata->dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); + sdata->bss_conf.assoc = 1; + ieee80211_bss_info_change_notify(sdata, changed); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6); - memset(mgmt, 0, 24 + 6); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_AUTH); - if (encrypt) - mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg); - mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); - ifsta->auth_transaction = transaction + 1; - mgmt->u.auth.status_code = cpu_to_le16(0); - if (extra) - memcpy(skb_put(skb, extra_len), extra, extra_len); + netif_tx_start_all_queues(sdata->dev); + netif_carrier_on(sdata->dev); - ieee80211_sta_tx(sdata, skb, encrypt); + ieee80211_sta_send_apinfo(sdata, ifsta); } static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata, @@ -702,294 +735,76 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata, mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT); } -static int ieee80211_compatible_rates(struct ieee80211_sta_bss *bss, - struct ieee80211_supported_band *sband, - u64 *rates) -{ - int i, j, count; - *rates = 0; - count = 0; - for (i = 0; i < bss->supp_rates_len; i++) { - int rate = (bss->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_send_assoc(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta) +static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta, bool deauth, + bool self_disconnected, u16 reason) { struct ieee80211_local *local = sdata->local; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u8 *pos, *ies, *ht_add_ie; - int i, len, count, rates_len, supp_rates_len; - u16 capab; - struct ieee80211_sta_bss *bss; - int wmm = 0; - struct ieee80211_supported_band *sband; - u64 rates = 0; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + - sizeof(*mgmt) + 200 + ifsta->extra_ie_len + - ifsta->ssid_len); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for assoc " - "frame\n", sdata->dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - capab = ifsta->capab; - - if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) { - if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) - capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; - if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) - capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; - } - - bss = ieee80211_rx_bss_get(local, ifsta->bssid, - local->hw.conf.channel->center_freq, - ifsta->ssid, ifsta->ssid_len); - if (bss) { - if (bss->capability & WLAN_CAPABILITY_PRIVACY) - capab |= WLAN_CAPABILITY_PRIVACY; - if (bss->wmm_used) - wmm = 1; - - /* get all rates supported by the device and the AP as - * some APs don't like getting a superset of their rates - * in the association request (e.g. D-Link DAP 1353 in - * b-only mode) */ - rates_len = ieee80211_compatible_rates(bss, sband, &rates); - - if ((bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) && - (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)) - capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; - - ieee80211_rx_bss_put(local, bss); - } else { - rates = ~0; - rates_len = sband->n_bitrates; - } - - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - - if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) { - skb_put(skb, 10); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_REASSOC_REQ); - mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab); - mgmt->u.reassoc_req.listen_interval = - cpu_to_le16(local->hw.conf.listen_interval); - memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid, - ETH_ALEN); - } else { - skb_put(skb, 4); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_ASSOC_REQ); - mgmt->u.assoc_req.capab_info = cpu_to_le16(capab); - mgmt->u.reassoc_req.listen_interval = - cpu_to_le16(local->hw.conf.listen_interval); - } - - /* SSID */ - ies = pos = skb_put(skb, 2 + ifsta->ssid_len); - *pos++ = WLAN_EID_SSID; - *pos++ = ifsta->ssid_len; - memcpy(pos, ifsta->ssid, ifsta->ssid_len); - - /* add all rates which were marked to be used above */ - supp_rates_len = rates_len; - if (supp_rates_len > 8) - supp_rates_len = 8; + struct sta_info *sta; + u32 changed = BSS_CHANGED_ASSOC; - len = sband->n_bitrates; - pos = skb_put(skb, supp_rates_len + 2); - *pos++ = WLAN_EID_SUPP_RATES; - *pos++ = supp_rates_len; + rcu_read_lock(); - count = 0; - for (i = 0; i < sband->n_bitrates; i++) { - if (BIT(i) & rates) { - int rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); - if (++count == 8) - break; - } + sta = sta_info_get(local, ifsta->bssid); + if (!sta) { + rcu_read_unlock(); + return; } - if (rates_len > count) { - pos = skb_put(skb, rates_len - count + 2); - *pos++ = WLAN_EID_EXT_SUPP_RATES; - *pos++ = rates_len - count; - - for (i++; i < sband->n_bitrates; i++) { - if (BIT(i) & rates) { - int rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); - } - } + if (deauth) { + ifsta->direct_probe_tries = 0; + ifsta->auth_tries = 0; } + ifsta->assoc_scan_tries = 0; + ifsta->assoc_tries = 0; - if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT) { - /* 1. power capabilities */ - pos = skb_put(skb, 4); - *pos++ = WLAN_EID_PWR_CAPABILITY; - *pos++ = 2; - *pos++ = 0; /* min tx power */ - *pos++ = local->hw.conf.channel->max_power; /* max tx power */ - - /* 2. supported channels */ - /* TODO: get this in reg domain format */ - pos = skb_put(skb, 2 * sband->n_channels + 2); - *pos++ = WLAN_EID_SUPPORTED_CHANNELS; - *pos++ = 2 * sband->n_channels; - for (i = 0; i < sband->n_channels; i++) { - *pos++ = ieee80211_frequency_to_channel( - sband->channels[i].center_freq); - *pos++ = 1; /* one channel in the subband*/ - } - } + netif_tx_stop_all_queues(sdata->dev); + netif_carrier_off(sdata->dev); - if (ifsta->extra_ie) { - pos = skb_put(skb, ifsta->extra_ie_len); - memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len); - } + ieee80211_sta_tear_down_BA_sessions(sdata, sta->addr); - if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) { - pos = skb_put(skb, 9); - *pos++ = WLAN_EID_VENDOR_SPECIFIC; - *pos++ = 7; /* len */ - *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */ - *pos++ = 0x50; - *pos++ = 0xf2; - *pos++ = 2; /* WME */ - *pos++ = 0; /* WME info */ - *pos++ = 1; /* WME ver */ - *pos++ = 0; + if (self_disconnected) { + if (deauth) + ieee80211_send_deauth_disassoc(sdata, + IEEE80211_STYPE_DEAUTH, reason); + else + ieee80211_send_deauth_disassoc(sdata, + IEEE80211_STYPE_DISASSOC, reason); } - /* wmm support is a must to HT */ - if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) && - sband->ht_info.ht_supported && - (ht_add_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_EXTRA_INFO))) { - struct ieee80211_ht_addt_info *ht_add_info = - (struct ieee80211_ht_addt_info *)ht_add_ie; - u16 cap = sband->ht_info.cap; - __le16 tmp; - u32 flags = local->hw.conf.channel->flags; - - switch (ht_add_info->ht_param & IEEE80211_HT_IE_CHA_SEC_OFFSET) { - case IEEE80211_HT_IE_CHA_SEC_ABOVE: - if (flags & IEEE80211_CHAN_NO_FAT_ABOVE) { - cap &= ~IEEE80211_HT_CAP_SUP_WIDTH; - cap &= ~IEEE80211_HT_CAP_SGI_40; - } - break; - case IEEE80211_HT_IE_CHA_SEC_BELOW: - if (flags & IEEE80211_CHAN_NO_FAT_BELOW) { - cap &= ~IEEE80211_HT_CAP_SUP_WIDTH; - cap &= ~IEEE80211_HT_CAP_SGI_40; - } - break; - } + ifsta->flags &= ~IEEE80211_STA_ASSOCIATED; + changed |= ieee80211_reset_erp_info(sdata); - tmp = cpu_to_le16(cap); - pos = skb_put(skb, sizeof(struct ieee80211_ht_cap)+2); - *pos++ = WLAN_EID_HT_CAPABILITY; - *pos++ = sizeof(struct ieee80211_ht_cap); - memset(pos, 0, sizeof(struct ieee80211_ht_cap)); - memcpy(pos, &tmp, sizeof(u16)); - pos += sizeof(u16); - /* TODO: needs a define here for << 2 */ - *pos++ = sband->ht_info.ampdu_factor | - (sband->ht_info.ampdu_density << 2); - memcpy(pos, sband->ht_info.supp_mcs_set, 16); - } + if (sdata->bss_conf.assoc_ht) + changed |= BSS_CHANGED_HT; - kfree(ifsta->assocreq_ies); - ifsta->assocreq_ies_len = (skb->data + skb->len) - ies; - ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL); - if (ifsta->assocreq_ies) - memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len); + sdata->bss_conf.assoc_ht = 0; + sdata->bss_conf.ht_conf = NULL; + sdata->bss_conf.ht_bss_conf = NULL; - ieee80211_sta_tx(sdata, skb, 0); -} + ieee80211_led_assoc(local, 0); + sdata->bss_conf.assoc = 0; + ieee80211_sta_send_apinfo(sdata, ifsta); -static void ieee80211_send_deauth(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta, u16 reason) -{ - struct ieee80211_local *local = sdata->local; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; + if (self_disconnected) + ifsta->state = IEEE80211_STA_MLME_DISABLED; - skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt)); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for deauth " - "frame\n", sdata->dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); + sta_info_unlink(&sta); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_DEAUTH); - skb_put(skb, 2); - mgmt->u.deauth.reason_code = cpu_to_le16(reason); + rcu_read_unlock(); - ieee80211_sta_tx(sdata, skb, 0); + sta_info_destroy(sta); } - -static void ieee80211_send_disassoc(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta, u16 reason) +static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata) { - struct ieee80211_local *local = sdata->local; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt)); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc " - "frame\n", sdata->dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_DISASSOC); - skb_put(skb, 2); - mgmt->u.disassoc.reason_code = cpu_to_le16(reason); - - ieee80211_sta_tx(sdata, skb, 0); + if (!sdata || !sdata->default_key || + sdata->default_key->conf.alg != ALG_WEP) + return 0; + return 1; } - static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { @@ -1020,7 +835,6 @@ static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata, return 1; } - static void ieee80211_associate(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { @@ -1083,7 +897,6 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata, "range\n", sdata->dev->name, print_mac(mac, ifsta->bssid)); disassoc = 1; - sta_info_unlink(&sta); } else ieee80211_send_probe_req(sdata, ifsta->bssid, local->scan_ssid, @@ -1103,86 +916,12 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata, rcu_read_unlock(); - if (disassoc && sta) - sta_info_destroy(sta); - - if (disassoc) { - ifsta->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_set_associated(sdata, ifsta, 0); - } else { + if (disassoc) + ieee80211_set_disassoc(sdata, ifsta, true, true, + WLAN_REASON_PREV_AUTH_NOT_VALID); + else mod_timer(&ifsta->timer, jiffies + IEEE80211_MONITORING_INTERVAL); - } -} - - -static void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, - u8 *ssid, size_t ssid_len) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_supported_band *sband; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u8 *pos, *supp_rates, *esupp_rates = NULL; - int i; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for probe " - "request\n", sdata->dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_PROBE_REQ); - memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - if (dst) { - memcpy(mgmt->da, dst, ETH_ALEN); - memcpy(mgmt->bssid, dst, ETH_ALEN); - } else { - memset(mgmt->da, 0xff, ETH_ALEN); - memset(mgmt->bssid, 0xff, ETH_ALEN); - } - pos = skb_put(skb, 2 + ssid_len); - *pos++ = WLAN_EID_SSID; - *pos++ = ssid_len; - memcpy(pos, ssid, ssid_len); - - supp_rates = skb_put(skb, 2); - supp_rates[0] = WLAN_EID_SUPP_RATES; - supp_rates[1] = 0; - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *rate = &sband->bitrates[i]; - if (esupp_rates) { - pos = skb_put(skb, 1); - esupp_rates[1]++; - } else if (supp_rates[1] == 8) { - esupp_rates = skb_put(skb, 3); - esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES; - esupp_rates[1] = 1; - pos = &esupp_rates[2]; - } else { - pos = skb_put(skb, 1); - supp_rates[1]++; - } - *pos = rate->bitrate / 5; - } - - ieee80211_sta_tx(sdata, skb, 0); -} - - -static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata) -{ - if (!sdata || !sdata->default_key || - sdata->default_key->conf.alg != ALG_WEP) - return 0; - return 1; } @@ -1211,652 +950,6 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, elems.challenge_len + 2, 1); } -static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *da, u16 tid, - u8 dialog_token, u16 status, u16 policy, - u16 buf_size, u16 timeout) -{ - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct ieee80211_local *local = sdata->local; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u16 capab; - - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); - - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer " - "for addba resp frame\n", sdata->dev->name); - return; - } - - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, da, ETH_ALEN); - memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) - memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN); - else - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_ACTION); - - skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp)); - mgmt->u.action.category = WLAN_CATEGORY_BACK; - mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP; - mgmt->u.action.u.addba_resp.dialog_token = dialog_token; - - capab = (u16)(policy << 1); /* bit 1 aggregation policy */ - capab |= (u16)(tid << 2); /* bit 5:2 TID number */ - capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */ - - mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab); - mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout); - mgmt->u.action.u.addba_resp.status = cpu_to_le16(status); - - ieee80211_sta_tx(sdata, skb, 0); - - return; -} - -void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, const u8 *da, - u16 tid, u8 dialog_token, u16 start_seq_num, - u16 agg_size, u16 timeout) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u16 capab; - - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); - - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer " - "for addba request frame\n", sdata->dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, da, ETH_ALEN); - memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) - memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN); - else - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_ACTION); - - skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req)); - - mgmt->u.action.category = WLAN_CATEGORY_BACK; - mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ; - - mgmt->u.action.u.addba_req.dialog_token = dialog_token; - capab = (u16)(1 << 1); /* bit 1 aggregation policy */ - capab |= (u16)(tid << 2); /* bit 5:2 TID number */ - capab |= (u16)(agg_size << 6); /* bit 15:6 max size of aggergation */ - - mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab); - - mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout); - mgmt->u.action.u.addba_req.start_seq_num = - cpu_to_le16(start_seq_num << 4); - - ieee80211_sta_tx(sdata, skb, 0); -} - -static void ieee80211_sta_process_addba_request(struct ieee80211_local *local, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - struct ieee80211_hw *hw = &local->hw; - struct ieee80211_conf *conf = &hw->conf; - struct sta_info *sta; - struct tid_ampdu_rx *tid_agg_rx; - u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status; - u8 dialog_token; - int ret = -EOPNOTSUPP; - DECLARE_MAC_BUF(mac); - - rcu_read_lock(); - - sta = sta_info_get(local, mgmt->sa); - if (!sta) { - rcu_read_unlock(); - return; - } - - /* extract session parameters from addba request frame */ - dialog_token = mgmt->u.action.u.addba_req.dialog_token; - timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout); - start_seq_num = - le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4; - - capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); - ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1; - tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; - buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; - - status = WLAN_STATUS_REQUEST_DECLINED; - - /* sanity check for incoming parameters: - * check if configuration can support the BA policy - * and if buffer size does not exceeds max value */ - if (((ba_policy != 1) - && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA))) - || (buf_size > IEEE80211_MAX_AMPDU_BUF)) { - status = WLAN_STATUS_INVALID_QOS_PARAM; -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "AddBA Req with bad params from " - "%s on tid %u. policy %d, buffer size %d\n", - print_mac(mac, mgmt->sa), tid, ba_policy, - buf_size); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - goto end_no_lock; - } - /* determine default buffer size */ - if (buf_size == 0) { - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[conf->channel->band]; - buf_size = IEEE80211_MIN_AMPDU_BUF; - buf_size = buf_size << sband->ht_info.ampdu_factor; - } - - - /* examine state machine */ - spin_lock_bh(&sta->lock); - - if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_IDLE) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "unexpected AddBA Req from " - "%s on tid %u\n", - print_mac(mac, mgmt->sa), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - goto end; - } - - /* prepare A-MPDU MLME for Rx aggregation */ - sta->ampdu_mlme.tid_rx[tid] = - kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC); - if (!sta->ampdu_mlme.tid_rx[tid]) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_ERR "allocate rx mlme to tid %d failed\n", - tid); -#endif - goto end; - } - /* rx timer */ - sta->ampdu_mlme.tid_rx[tid]->session_timer.function = - sta_rx_agg_session_timer_expired; - sta->ampdu_mlme.tid_rx[tid]->session_timer.data = - (unsigned long)&sta->timer_to_tid[tid]; - init_timer(&sta->ampdu_mlme.tid_rx[tid]->session_timer); - - tid_agg_rx = sta->ampdu_mlme.tid_rx[tid]; - - /* prepare reordering buffer */ - tid_agg_rx->reorder_buf = - kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC); - if (!tid_agg_rx->reorder_buf) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_ERR "can not allocate reordering buffer " - "to tid %d\n", tid); -#endif - kfree(sta->ampdu_mlme.tid_rx[tid]); - goto end; - } - memset(tid_agg_rx->reorder_buf, 0, - buf_size * sizeof(struct sk_buff *)); - - if (local->ops->ampdu_action) - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START, - sta->addr, tid, &start_seq_num); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - if (ret) { - kfree(tid_agg_rx->reorder_buf); - kfree(tid_agg_rx); - sta->ampdu_mlme.tid_rx[tid] = NULL; - goto end; - } - - /* change state and send addba resp */ - sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_OPERATIONAL; - tid_agg_rx->dialog_token = dialog_token; - tid_agg_rx->ssn = start_seq_num; - tid_agg_rx->head_seq_num = start_seq_num; - tid_agg_rx->buf_size = buf_size; - tid_agg_rx->timeout = timeout; - tid_agg_rx->stored_mpdu_num = 0; - status = WLAN_STATUS_SUCCESS; -end: - spin_unlock_bh(&sta->lock); - -end_no_lock: - ieee80211_send_addba_resp(sta->sdata, sta->addr, tid, - dialog_token, status, 1, buf_size, timeout); - rcu_read_unlock(); -} - -static void ieee80211_sta_process_addba_resp(struct ieee80211_local *local, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - struct ieee80211_hw *hw = &local->hw; - struct sta_info *sta; - u16 capab; - u16 tid; - u8 *state; - - rcu_read_lock(); - - sta = sta_info_get(local, mgmt->sa); - if (!sta) { - rcu_read_unlock(); - return; - } - - capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab); - tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; - - state = &sta->ampdu_mlme.tid_state_tx[tid]; - - spin_lock_bh(&sta->lock); - - if (!(*state & HT_ADDBA_REQUESTED_MSK)) { - spin_unlock_bh(&sta->lock); - goto addba_resp_exit; - } - - if (mgmt->u.action.u.addba_resp.dialog_token != - sta->ampdu_mlme.tid_tx[tid]->dialog_token) { - spin_unlock_bh(&sta->lock); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - goto addba_resp_exit; - } - - del_timer_sync(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - if (le16_to_cpu(mgmt->u.action.u.addba_resp.status) - == WLAN_STATUS_SUCCESS) { - *state |= HT_ADDBA_RECEIVED_MSK; - sta->ampdu_mlme.addba_req_num[tid] = 0; - - if (*state == HT_AGG_STATE_OPERATIONAL) - ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); - - spin_unlock_bh(&sta->lock); - } else { - sta->ampdu_mlme.addba_req_num[tid]++; - /* this will allow the state check in stop_BA_session */ - *state = HT_AGG_STATE_OPERATIONAL; - spin_unlock_bh(&sta->lock); - ieee80211_stop_tx_ba_session(hw, sta->addr, tid, - WLAN_BACK_INITIATOR); - } - -addba_resp_exit: - rcu_read_unlock(); -} - -void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, const u8 *da, u16 tid, - u16 initiator, u16 reason_code) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u16 params; - - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); - - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer " - "for delba frame\n", sdata->dev->name); - return; - } - - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, da, ETH_ALEN); - memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) - memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN); - else - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_ACTION); - - skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba)); - - mgmt->u.action.category = WLAN_CATEGORY_BACK; - mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA; - params = (u16)(initiator << 11); /* bit 11 initiator */ - params |= (u16)(tid << 12); /* bit 15:12 TID number */ - - mgmt->u.action.u.delba.params = cpu_to_le16(params); - mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code); - - ieee80211_sta_tx(sdata, skb, 0); -} - -void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn) -{ - struct ieee80211_local *local = sdata->local; - struct sk_buff *skb; - struct ieee80211_bar *bar; - u16 bar_control = 0; - - skb = dev_alloc_skb(sizeof(*bar) + local->hw.extra_tx_headroom); - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer for " - "bar frame\n", sdata->dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - bar = (struct ieee80211_bar *)skb_put(skb, sizeof(*bar)); - memset(bar, 0, sizeof(*bar)); - bar->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | - IEEE80211_STYPE_BACK_REQ); - memcpy(bar->ra, ra, ETH_ALEN); - memcpy(bar->ta, sdata->dev->dev_addr, ETH_ALEN); - bar_control |= (u16)IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL; - bar_control |= (u16)IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA; - bar_control |= (u16)(tid << 12); - bar->control = cpu_to_le16(bar_control); - bar->start_seq_num = cpu_to_le16(ssn); - - ieee80211_sta_tx(sdata, skb, 0); -} - -void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, - u16 initiator, u16 reason) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_hw *hw = &local->hw; - struct sta_info *sta; - int ret, i; - DECLARE_MAC_BUF(mac); - - rcu_read_lock(); - - sta = sta_info_get(local, ra); - if (!sta) { - rcu_read_unlock(); - return; - } - - /* check if TID is in operational state */ - spin_lock_bh(&sta->lock); - if (sta->ampdu_mlme.tid_state_rx[tid] - != HT_AGG_STATE_OPERATIONAL) { - spin_unlock_bh(&sta->lock); - rcu_read_unlock(); - return; - } - sta->ampdu_mlme.tid_state_rx[tid] = - HT_AGG_STATE_REQ_STOP_BA_MSK | - (initiator << HT_AGG_STATE_INITIATOR_SHIFT); - spin_unlock_bh(&sta->lock); - - /* stop HW Rx aggregation. ampdu_action existence - * already verified in session init so we add the BUG_ON */ - BUG_ON(!local->ops->ampdu_action); - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Rx BA session stop requested for %s tid %u\n", - print_mac(mac, ra), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP, - ra, tid, NULL); - if (ret) - printk(KERN_DEBUG "HW problem - can not stop rx " - "aggregation for tid %d\n", tid); - - /* shutdown timer has not expired */ - if (initiator != WLAN_BACK_TIMER) - del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]->session_timer); - - /* check if this is a self generated aggregation halt */ - if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER) - ieee80211_send_delba(sdata, ra, tid, 0, reason); - - /* free the reordering buffer */ - for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) { - if (sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]) { - /* release the reordered frames */ - dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]); - sta->ampdu_mlme.tid_rx[tid]->stored_mpdu_num--; - sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i] = NULL; - } - } - /* free resources */ - kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf); - kfree(sta->ampdu_mlme.tid_rx[tid]); - sta->ampdu_mlme.tid_rx[tid] = NULL; - sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE; - - rcu_read_unlock(); -} - - -static void ieee80211_sta_process_delba(struct ieee80211_sub_if_data *sdata, - struct ieee80211_mgmt *mgmt, size_t len) -{ - struct ieee80211_local *local = sdata->local; - struct sta_info *sta; - u16 tid, params; - u16 initiator; - DECLARE_MAC_BUF(mac); - - rcu_read_lock(); - - sta = sta_info_get(local, mgmt->sa); - if (!sta) { - rcu_read_unlock(); - return; - } - - params = le16_to_cpu(mgmt->u.action.u.delba.params); - tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12; - initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11; - -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n", - print_mac(mac, mgmt->sa), - initiator ? "initiator" : "recipient", tid, - mgmt->u.action.u.delba.reason_code); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - if (initiator == WLAN_BACK_INITIATOR) - ieee80211_sta_stop_rx_ba_session(sdata, sta->addr, tid, - WLAN_BACK_INITIATOR, 0); - else { /* WLAN_BACK_RECIPIENT */ - spin_lock_bh(&sta->lock); - sta->ampdu_mlme.tid_state_tx[tid] = - HT_AGG_STATE_OPERATIONAL; - spin_unlock_bh(&sta->lock); - ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid, - WLAN_BACK_RECIPIENT); - } - rcu_read_unlock(); -} - -/* - * After sending add Block Ack request we activated a timer until - * add Block Ack response will arrive from the recipient. - * If this timer expires sta_addba_resp_timer_expired will be executed. - */ -void sta_addba_resp_timer_expired(unsigned long data) -{ - /* not an elegant detour, but there is no choice as the timer passes - * only one argument, and both sta_info and TID are needed, so init - * flow in sta_info_create gives the TID as data, while the timer_to_id - * array gives the sta through container_of */ - u16 tid = *(u8 *)data; - struct sta_info *temp_sta = container_of((void *)data, - struct sta_info, timer_to_tid[tid]); - - struct ieee80211_local *local = temp_sta->local; - struct ieee80211_hw *hw = &local->hw; - struct sta_info *sta; - u8 *state; - - rcu_read_lock(); - - sta = sta_info_get(local, temp_sta->addr); - if (!sta) { - rcu_read_unlock(); - return; - } - - state = &sta->ampdu_mlme.tid_state_tx[tid]; - /* check if the TID waits for addBA response */ - spin_lock_bh(&sta->lock); - if (!(*state & HT_ADDBA_REQUESTED_MSK)) { - spin_unlock_bh(&sta->lock); - *state = HT_AGG_STATE_IDLE; -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "timer expired on tid %d but we are not " - "expecting addBA response there", tid); -#endif - goto timer_expired_exit; - } - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid); -#endif - - /* go through the state check in stop_BA_session */ - *state = HT_AGG_STATE_OPERATIONAL; - spin_unlock_bh(&sta->lock); - ieee80211_stop_tx_ba_session(hw, temp_sta->addr, tid, - WLAN_BACK_INITIATOR); - -timer_expired_exit: - rcu_read_unlock(); -} - -/* - * After accepting the AddBA Request we activated a timer, - * resetting it after each frame that arrives from the originator. - * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed. - */ -static void sta_rx_agg_session_timer_expired(unsigned long data) -{ - /* not an elegant detour, but there is no choice as the timer passes - * only one argument, and various sta_info are needed here, so init - * flow in sta_info_create gives the TID as data, while the timer_to_id - * array gives the sta through container_of */ - u8 *ptid = (u8 *)data; - u8 *timer_to_id = ptid - *ptid; - struct sta_info *sta = container_of(timer_to_id, struct sta_info, - timer_to_tid[0]); - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid); -#endif - ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->addr, - (u16)*ptid, WLAN_BACK_TIMER, - WLAN_REASON_QSTA_TIMEOUT); -} - -void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr) -{ - struct ieee80211_local *local = sdata->local; - int i; - - for (i = 0; i < STA_TID_NUM; i++) { - ieee80211_stop_tx_ba_session(&local->hw, addr, i, - WLAN_BACK_INITIATOR); - ieee80211_sta_stop_rx_ba_session(sdata, addr, i, - WLAN_BACK_RECIPIENT, - WLAN_REASON_QSTA_LEAVE_QBSS); - } -} - -static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata, - struct ieee80211_msrment_ie *request_ie, - const u8 *da, const u8 *bssid, - u8 dialog_token) -{ - struct ieee80211_local *local = sdata->local; - struct sk_buff *skb; - struct ieee80211_mgmt *msr_report; - - skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom + - sizeof(struct ieee80211_msrment_ie)); - - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer for " - "measurement report frame\n", sdata->dev->name); - return; - } - - skb_reserve(skb, local->hw.extra_tx_headroom); - msr_report = (struct ieee80211_mgmt *)skb_put(skb, 24); - memset(msr_report, 0, 24); - memcpy(msr_report->da, da, ETH_ALEN); - memcpy(msr_report->sa, sdata->dev->dev_addr, ETH_ALEN); - memcpy(msr_report->bssid, bssid, ETH_ALEN); - msr_report->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_ACTION); - - skb_put(skb, 1 + sizeof(msr_report->u.action.u.measurement)); - msr_report->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; - msr_report->u.action.u.measurement.action_code = - WLAN_ACTION_SPCT_MSR_RPRT; - msr_report->u.action.u.measurement.dialog_token = dialog_token; - - msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT; - msr_report->u.action.u.measurement.length = - sizeof(struct ieee80211_msrment_ie); - - memset(&msr_report->u.action.u.measurement.msr_elem, 0, - sizeof(struct ieee80211_msrment_ie)); - msr_report->u.action.u.measurement.msr_elem.token = request_ie->token; - msr_report->u.action.u.measurement.msr_elem.mode |= - IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED; - msr_report->u.action.u.measurement.msr_elem.type = request_ie->type; - - ieee80211_sta_tx(sdata, skb, 0); -} - -static void ieee80211_sta_process_measurement_req(struct ieee80211_sub_if_data *sdata, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - /* - * Ignoring measurement request is spec violation. - * Mandatory measurements must be reported optional - * measurements might be refused or reported incapable - * For now just refuse - * TODO: Answer basic measurement as unmeasured - */ - ieee80211_send_refuse_measurement_request(sdata, - &mgmt->u.action.u.measurement.msr_elem, - mgmt->sa, mgmt->bssid, - mgmt->u.action.u.measurement.dialog_token); -} - - static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta, struct ieee80211_mgmt *mgmt, @@ -1977,7 +1070,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, IEEE80211_RETRY_AUTH_INTERVAL); } - ieee80211_set_disassoc(sdata, ifsta, 1); + ieee80211_set_disassoc(sdata, ifsta, true, false, 0); ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED; } @@ -2007,7 +1100,7 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, IEEE80211_RETRY_AUTH_INTERVAL); } - ieee80211_set_disassoc(sdata, ifsta, 0); + ieee80211_set_disassoc(sdata, ifsta, false, false, 0); } @@ -2201,209 +1294,12 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, * ieee80211_set_associated() will tell the driver */ bss_conf->aid = aid; bss_conf->assoc_capability = capab_info; - ieee80211_set_associated(sdata, ifsta, 1); + ieee80211_set_associated(sdata, ifsta); ieee80211_associated(sdata, ifsta); } -/* Caller must hold local->sta_bss_lock */ -static void __ieee80211_rx_bss_hash_add(struct ieee80211_local *local, - struct ieee80211_sta_bss *bss) -{ - u8 hash_idx; - - if (bss_mesh_cfg(bss)) - hash_idx = mesh_id_hash(bss_mesh_id(bss), - bss_mesh_id_len(bss)); - else - hash_idx = STA_HASH(bss->bssid); - - bss->hnext = local->sta_bss_hash[hash_idx]; - local->sta_bss_hash[hash_idx] = bss; -} - - -/* Caller must hold local->sta_bss_lock */ -static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local, - struct ieee80211_sta_bss *bss) -{ - struct ieee80211_sta_bss *b, *prev = NULL; - b = local->sta_bss_hash[STA_HASH(bss->bssid)]; - while (b) { - if (b == bss) { - if (!prev) - local->sta_bss_hash[STA_HASH(bss->bssid)] = - bss->hnext; - else - prev->hnext = bss->hnext; - break; - } - prev = b; - b = b->hnext; - } -} - - -static struct ieee80211_sta_bss * -ieee80211_rx_bss_add(struct ieee80211_sub_if_data *sdata, u8 *bssid, int freq, - u8 *ssid, u8 ssid_len) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_sta_bss *bss; - - bss = kzalloc(sizeof(*bss), GFP_ATOMIC); - if (!bss) - return NULL; - atomic_inc(&bss->users); - atomic_inc(&bss->users); - memcpy(bss->bssid, bssid, ETH_ALEN); - bss->freq = freq; - if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) { - memcpy(bss->ssid, ssid, ssid_len); - bss->ssid_len = ssid_len; - } - - spin_lock_bh(&local->sta_bss_lock); - /* TODO: order by RSSI? */ - list_add_tail(&bss->list, &local->sta_bss_list); - __ieee80211_rx_bss_hash_add(local, bss); - spin_unlock_bh(&local->sta_bss_lock); - return bss; -} - -static struct ieee80211_sta_bss * -ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, - u8 *ssid, u8 ssid_len) -{ - struct ieee80211_sta_bss *bss; - - spin_lock_bh(&local->sta_bss_lock); - bss = local->sta_bss_hash[STA_HASH(bssid)]; - while (bss) { - if (!bss_mesh_cfg(bss) && - !memcmp(bss->bssid, bssid, ETH_ALEN) && - bss->freq == freq && - bss->ssid_len == ssid_len && - (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) { - atomic_inc(&bss->users); - break; - } - bss = bss->hnext; - } - spin_unlock_bh(&local->sta_bss_lock); - return bss; -} - -#ifdef CONFIG_MAC80211_MESH -static struct ieee80211_sta_bss * -ieee80211_rx_mesh_bss_get(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len, - u8 *mesh_cfg, int freq) -{ - struct ieee80211_sta_bss *bss; - - spin_lock_bh(&local->sta_bss_lock); - bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)]; - while (bss) { - if (bss_mesh_cfg(bss) && - !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) && - bss->freq == freq && - mesh_id_len == bss->mesh_id_len && - (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id, - mesh_id_len))) { - atomic_inc(&bss->users); - break; - } - bss = bss->hnext; - } - spin_unlock_bh(&local->sta_bss_lock); - return bss; -} - -static struct ieee80211_sta_bss * -ieee80211_rx_mesh_bss_add(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len, - u8 *mesh_cfg, int mesh_config_len, int freq) -{ - struct ieee80211_sta_bss *bss; - - if (mesh_config_len != MESH_CFG_LEN) - return NULL; - - bss = kzalloc(sizeof(*bss), GFP_ATOMIC); - if (!bss) - return NULL; - - bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC); - if (!bss->mesh_cfg) { - kfree(bss); - return NULL; - } - - if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) { - bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC); - if (!bss->mesh_id) { - kfree(bss->mesh_cfg); - kfree(bss); - return NULL; - } - memcpy(bss->mesh_id, mesh_id, mesh_id_len); - } - - atomic_inc(&bss->users); - atomic_inc(&bss->users); - memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN); - bss->mesh_id_len = mesh_id_len; - bss->freq = freq; - spin_lock_bh(&local->sta_bss_lock); - /* TODO: order by RSSI? */ - list_add_tail(&bss->list, &local->sta_bss_list); - __ieee80211_rx_bss_hash_add(local, bss); - spin_unlock_bh(&local->sta_bss_lock); - return bss; -} -#endif - -static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss) -{ - kfree(bss->ies); - kfree(bss_mesh_id(bss)); - kfree(bss_mesh_cfg(bss)); - kfree(bss); -} - - -static void ieee80211_rx_bss_put(struct ieee80211_local *local, - struct ieee80211_sta_bss *bss) -{ - local_bh_disable(); - if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) { - local_bh_enable(); - return; - } - - __ieee80211_rx_bss_hash_del(local, bss); - list_del(&bss->list); - spin_unlock_bh(&local->sta_bss_lock); - ieee80211_rx_bss_free(bss); -} - - -void ieee80211_rx_bss_list_init(struct ieee80211_local *local) -{ - spin_lock_init(&local->sta_bss_lock); - INIT_LIST_HEAD(&local->sta_bss_list); -} - - -void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local) -{ - struct ieee80211_sta_bss *bss, *tmp; - - list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list) - ieee80211_rx_bss_put(local, bss); -} - - static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta, struct ieee80211_sta_bss *bss) @@ -2508,7 +1404,7 @@ static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, } ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates; - ieee80211_sta_def_wmm_params(sdata, bss, 1); + ieee80211_sta_def_wmm_params(sdata, bss); ifsta->state = IEEE80211_STA_MLME_IBSS_JOINED; mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL); @@ -2588,21 +1484,29 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status, - struct ieee802_11_elems *elems) + struct ieee802_11_elems *elems, + bool beacon) { struct ieee80211_local *local = sdata->local; - int freq, clen; + int freq; struct ieee80211_sta_bss *bss; struct sta_info *sta; 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); - beacon_timestamp = le64_to_cpu(mgmt->u.beacon.timestamp); + if (elems->ds_params && elems->ds_params_len == 1) + freq = ieee80211_channel_to_frequency(elems->ds_params[0]); + else + freq = rx_status->freq; + + channel = ieee80211_get_channel(local->hw.wiphy, freq); + + if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) + return; if (ieee80211_vif_is_mesh(&sdata->vif) && elems->mesh_id && elems->mesh_config && mesh_matches_local(elems, sdata)) { @@ -2612,13 +1516,12 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *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) { - supp_rates = ieee80211_sta_get_rates(local, elems, band); + rcu_read_lock(); + sta = sta_info_get(local, mgmt->sa); if (sta) { u64 prev_rates; @@ -2642,95 +1545,18 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, ieee80211_ibss_add_sta(sdata, NULL, mgmt->bssid, mgmt->sa, supp_rates); } - } - - rcu_read_unlock(); - - if (elems->ds_params && elems->ds_params_len == 1) - freq = ieee80211_channel_to_frequency(elems->ds_params[0]); - else - freq = rx_status->freq; - - channel = ieee80211_get_channel(local->hw.wiphy, freq); - - if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) - return; - -#ifdef CONFIG_MAC80211_MESH - if (elems->mesh_config) - bss = ieee80211_rx_mesh_bss_get(local, elems->mesh_id, - elems->mesh_id_len, elems->mesh_config, freq); - else -#endif - bss = ieee80211_rx_bss_get(local, mgmt->bssid, freq, - elems->ssid, elems->ssid_len); - if (!bss) { -#ifdef CONFIG_MAC80211_MESH - if (elems->mesh_config) - bss = ieee80211_rx_mesh_bss_add(local, elems->mesh_id, - elems->mesh_id_len, elems->mesh_config, - elems->mesh_config_len, freq); - else -#endif - bss = ieee80211_rx_bss_add(sdata, mgmt->bssid, freq, - elems->ssid, elems->ssid_len); - if (!bss) - return; - } else { -#if 0 - /* TODO: order by RSSI? */ - spin_lock_bh(&local->sta_bss_lock); - list_move_tail(&bss->list, &local->sta_bss_list); - spin_unlock_bh(&local->sta_bss_lock); -#endif - } - /* save the ERP value so that it is available at association time */ - if (elems->erp_info && elems->erp_info_len >= 1) { - bss->erp_value = elems->erp_info[0]; - bss->has_erp_value = 1; - } - - bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int); - bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info); - - if (elems->tim) { - struct ieee80211_tim_ie *tim_ie = - (struct ieee80211_tim_ie *)elems->tim; - bss->dtim_period = tim_ie->dtim_period; + rcu_read_unlock(); } - /* set default value for buggy APs */ - if (!elems->tim || bss->dtim_period == 0) - bss->dtim_period = 1; - - bss->supp_rates_len = 0; - if (elems->supp_rates) { - clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len; - if (clen > elems->supp_rates_len) - clen = elems->supp_rates_len; - memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates, - clen); - bss->supp_rates_len += clen; - } - if (elems->ext_supp_rates) { - clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len; - if (clen > elems->ext_supp_rates_len) - clen = elems->ext_supp_rates_len; - memcpy(&bss->supp_rates[bss->supp_rates_len], - elems->ext_supp_rates, clen); - bss->supp_rates_len += clen; - } + bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems, + freq, beacon); + if (!bss) + return; - bss->band = band; + /* was just updated in ieee80211_bss_info_update */ + beacon_timestamp = bss->timestamp; - bss->timestamp = beacon_timestamp; - bss->last_update = jiffies; - bss->signal = rx_status->signal; - bss->noise = rx_status->noise; - bss->qual = rx_status->qual; - if (!beacon) - bss->last_probe_resp = jiffies; /* * In STA mode, the remaining parameters should not be overridden * by beacons because they're not necessarily accurate there. @@ -2741,21 +1567,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, return; } - if (bss->ies == NULL || bss->ies_len < elems->total_len) { - kfree(bss->ies); - bss->ies = kmalloc(elems->total_len, GFP_ATOMIC); - } - if (bss->ies) { - memcpy(bss->ies, elems->ie_start, elems->total_len); - bss->ies_len = elems->total_len; - } else - bss->ies_len = 0; - - bss->wmm_used = elems->wmm_param || elems->wmm_info; - /* check if we need to merge IBSS */ if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon && - !local->sta_sw_scanning && !local->sta_hw_scanning && bss->capability & WLAN_CAPABILITY_IBSS && bss->freq == local->oper_channel->center_freq && elems->ssid_len == sdata->u.sta.ssid_len && @@ -2832,7 +1645,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen, &elems); - ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems); + ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false); /* direct probe may be part of the association flow */ if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE, @@ -2863,7 +1676,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems); - ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems); + ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true); if (sdata->vif.type != IEEE80211_IF_TYPE_STA) return; @@ -2876,12 +1689,6 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param, elems.wmm_param_len); - /* Do not send changes to driver if we are scanning. This removes - * requirement that driver's bss_info_changed function needs to be - * atomic. */ - if (local->sta_sw_scanning || local->sta_hw_scanning) - return; - if (elems.erp_info && elems.erp_info_len >= 1) changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]); else { @@ -2975,7 +1782,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: Sending ProbeResp to %s\n", sdata->dev->name, print_mac(mac, resp->da)); #endif /* CONFIG_MAC80211_IBSS_DEBUG */ - ieee80211_sta_tx(sdata, skb, 0); + ieee80211_tx_skb(sdata, skb, 0); } static void ieee80211_rx_mgmt_action(struct ieee80211_sub_if_data *sdata, @@ -2984,53 +1791,16 @@ static void ieee80211_rx_mgmt_action(struct ieee80211_sub_if_data *sdata, size_t len, struct ieee80211_rx_status *rx_status) { - struct ieee80211_local *local = sdata->local; - - if (len < IEEE80211_MIN_ACTION_SIZE) + /* currently we only handle mesh interface action frames here */ + if (!ieee80211_vif_is_mesh(&sdata->vif)) return; switch (mgmt->u.action.category) { - case WLAN_CATEGORY_SPECTRUM_MGMT: - if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ) - break; - switch (mgmt->u.action.u.chan_switch.action_code) { - case WLAN_ACTION_SPCT_MSR_REQ: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.measurement))) - break; - ieee80211_sta_process_measurement_req(sdata, mgmt, len); - break; - } - break; - case WLAN_CATEGORY_BACK: - switch (mgmt->u.action.u.addba_req.action_code) { - case WLAN_ACTION_ADDBA_REQ: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.addba_req))) - break; - ieee80211_sta_process_addba_request(local, mgmt, len); - break; - case WLAN_ACTION_ADDBA_RESP: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.addba_resp))) - break; - ieee80211_sta_process_addba_resp(local, mgmt, len); - break; - case WLAN_ACTION_DELBA: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.delba))) - break; - ieee80211_sta_process_delba(sdata, mgmt, len); - break; - } - break; case PLINK_CATEGORY: - if (ieee80211_vif_is_mesh(&sdata->vif)) - mesh_rx_plink_frame(sdata, mgmt, len, rx_status); + mesh_rx_plink_frame(sdata, mgmt, len, rx_status); break; case MESH_PATH_SEL_CATEGORY: - if (ieee80211_vif_is_mesh(&sdata->vif)) - mesh_rx_path_sel_frame(sdata, mgmt, len); + mesh_rx_path_sel_frame(sdata, mgmt, len); break; } } @@ -3120,41 +1890,6 @@ static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, } -ieee80211_rx_result -ieee80211_sta_rx_scan(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status) -{ - struct ieee80211_mgmt *mgmt; - __le16 fc; - - if (skb->len < 2) - return RX_DROP_UNUSABLE; - - mgmt = (struct ieee80211_mgmt *) skb->data; - fc = mgmt->frame_control; - - if (ieee80211_is_ctl(fc)) - return RX_CONTINUE; - - if (skb->len < 24) - return RX_DROP_MONITOR; - - if (ieee80211_is_probe_resp(fc)) { - ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len, rx_status); - dev_kfree_skb(skb); - return RX_QUEUED; - } - - if (ieee80211_is_beacon(fc)) { - ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len, rx_status); - dev_kfree_skb(skb); - return RX_QUEUED; - } - - return RX_CONTINUE; -} - - static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; @@ -3259,95 +1994,6 @@ void ieee80211_sta_timer(unsigned long data) queue_work(local->hw.workqueue, &ifsta->work); } -void ieee80211_sta_work(struct work_struct *work) -{ - struct ieee80211_sub_if_data *sdata = - container_of(work, struct ieee80211_sub_if_data, u.sta.work); - struct ieee80211_local *local = sdata->local; - struct ieee80211_if_sta *ifsta; - struct sk_buff *skb; - - if (!netif_running(sdata->dev)) - return; - - if (local->sta_sw_scanning || local->sta_hw_scanning) - return; - - if (WARN_ON(sdata->vif.type != IEEE80211_IF_TYPE_STA && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS && - sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)) - return; - ifsta = &sdata->u.sta; - - while ((skb = skb_dequeue(&ifsta->skb_queue))) - ieee80211_sta_rx_queued_mgmt(sdata, skb); - -#ifdef CONFIG_MAC80211_MESH - if (ifsta->preq_queue_len && - time_after(jiffies, - ifsta->last_preq + msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval))) - mesh_path_start_discovery(sdata); -#endif - - if (ifsta->state != IEEE80211_STA_MLME_DIRECT_PROBE && - ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE && - ifsta->state != IEEE80211_STA_MLME_ASSOCIATE && - test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) { - if (ifsta->scan_ssid_len) - ieee80211_sta_start_scan(sdata, ifsta->scan_ssid, ifsta->scan_ssid_len); - else - ieee80211_sta_start_scan(sdata, NULL, 0); - return; - } - - if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) { - if (ieee80211_sta_config_auth(sdata, ifsta)) - return; - clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request); - } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request)) - return; - - switch (ifsta->state) { - case IEEE80211_STA_MLME_DISABLED: - break; - case IEEE80211_STA_MLME_DIRECT_PROBE: - ieee80211_direct_probe(sdata, ifsta); - break; - case IEEE80211_STA_MLME_AUTHENTICATE: - ieee80211_authenticate(sdata, ifsta); - break; - case IEEE80211_STA_MLME_ASSOCIATE: - ieee80211_associate(sdata, ifsta); - break; - case IEEE80211_STA_MLME_ASSOCIATED: - ieee80211_associated(sdata, ifsta); - break; - case IEEE80211_STA_MLME_IBSS_SEARCH: - ieee80211_sta_find_ibss(sdata, ifsta); - break; - case IEEE80211_STA_MLME_IBSS_JOINED: - ieee80211_sta_merge_ibss(sdata, ifsta); - break; -#ifdef CONFIG_MAC80211_MESH - case IEEE80211_STA_MLME_MESH_UP: - ieee80211_mesh_housekeeping(sdata, ifsta); - break; -#endif - default: - WARN_ON(1); - break; - } - - if (ieee80211_privacy_mismatch(sdata, ifsta)) { - printk(KERN_DEBUG "%s: privacy configuration mismatch and " - "mixed-cell disabled - disassociate\n", sdata->dev->name); - - ieee80211_send_disassoc(sdata, ifsta, WLAN_REASON_UNSPECIFIED); - ieee80211_set_disassoc(sdata, ifsta, 0); - } -} - - static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { @@ -3375,6 +2021,7 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata, ifsta->direct_probe_tries = 0; ifsta->auth_tries = 0; ifsta->assoc_tries = 0; + netif_tx_stop_all_queues(sdata->dev); netif_carrier_off(sdata->dev); } @@ -3388,9 +2035,14 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata, return; if ((ifsta->flags & (IEEE80211_STA_BSSID_SET | - IEEE80211_STA_AUTO_BSSID_SEL)) && + IEEE80211_STA_AUTO_BSSID_SEL)) && (ifsta->flags & (IEEE80211_STA_SSID_SET | - IEEE80211_STA_AUTO_SSID_SEL))) { + IEEE80211_STA_AUTO_SSID_SEL))) { + + if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) + ieee80211_set_disassoc(sdata, ifsta, true, true, + WLAN_REASON_DEAUTH_LEAVING); + set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); queue_work(local->hw.workqueue, &ifsta->work); } @@ -3426,85 +2078,6 @@ static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta, return 0; } -static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_sta_bss *bss, *selected = NULL; - int top_rssi = 0, freq; - - spin_lock_bh(&local->sta_bss_lock); - freq = local->oper_channel->center_freq; - list_for_each_entry(bss, &local->sta_bss_list, list) { - if (!(bss->capability & WLAN_CAPABILITY_ESS)) - continue; - - if ((ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL | - IEEE80211_STA_AUTO_BSSID_SEL | - IEEE80211_STA_AUTO_CHANNEL_SEL)) && - (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^ - !!sdata->default_key)) - continue; - - if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) && - bss->freq != freq) - continue; - - if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) && - memcmp(bss->bssid, ifsta->bssid, ETH_ALEN)) - continue; - - if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) && - !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len)) - continue; - - if (!selected || top_rssi < bss->signal) { - selected = bss; - top_rssi = bss->signal; - } - } - if (selected) - atomic_inc(&selected->users); - spin_unlock_bh(&local->sta_bss_lock); - - if (selected) { - ieee80211_set_freq(sdata, selected->freq); - if (!(ifsta->flags & IEEE80211_STA_SSID_SET)) - ieee80211_sta_set_ssid(sdata, selected->ssid, - selected->ssid_len); - ieee80211_sta_set_bssid(sdata, selected->bssid); - ieee80211_sta_def_wmm_params(sdata, selected, 0); - - /* Send out direct probe if no probe resp was received or - * the one we have is outdated - */ - if (!selected->last_probe_resp || - time_after(jiffies, selected->last_probe_resp - + IEEE80211_SCAN_RESULT_EXPIRE)) - ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE; - else - ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE; - - ieee80211_rx_bss_put(local, selected); - ieee80211_sta_reset_auth(sdata, ifsta); - return 0; - } else { - if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) { - ifsta->assoc_scan_tries++; - if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) - ieee80211_sta_start_scan(sdata, NULL, 0); - else - ieee80211_sta_start_scan(sdata, ifsta->ssid, - ifsta->ssid_len); - ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE; - set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); - } else - ifsta->state = IEEE80211_STA_MLME_DISABLED; - } - return -1; -} - - static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { @@ -3533,7 +2106,7 @@ static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %s\n", sdata->dev->name, print_mac(mac, bssid)); - bss = ieee80211_rx_bss_add(sdata, bssid, + bss = ieee80211_rx_bss_add(local, bssid, local->hw.conf.channel->center_freq, sdata->u.sta.ssid, sdata->u.sta.ssid_len); if (!bss) @@ -3762,544 +2335,6 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid) } -static void ieee80211_send_nullfunc(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - int powersave) -{ - struct sk_buff *skb; - struct ieee80211_hdr *nullfunc; - __le16 fc; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc " - "frame\n", sdata->dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24); - memset(nullfunc, 0, 24); - fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC | - IEEE80211_FCTL_TODS); - if (powersave) - fc |= cpu_to_le16(IEEE80211_FCTL_PM); - nullfunc->frame_control = fc; - memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN); - memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN); - memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN); - - ieee80211_sta_tx(sdata, skb, 0); -} - - -static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) -{ - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - ieee80211_vif_is_mesh(&sdata->vif)) - ieee80211_sta_timer((unsigned long)sdata); -} - -void ieee80211_scan_completed(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct net_device *dev = local->scan_dev; - struct ieee80211_sub_if_data *sdata; - union iwreq_data wrqu; - - local->last_scan_completed = jiffies; - memset(&wrqu, 0, sizeof(wrqu)); - wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); - - if (local->sta_hw_scanning) { - local->sta_hw_scanning = 0; - if (ieee80211_hw_config(local)) - printk(KERN_DEBUG "%s: failed to restore operational " - "channel after scan\n", dev->name); - /* Restart STA timer for HW scan case */ - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) - ieee80211_restart_sta_timer(sdata); - rcu_read_unlock(); - - goto done; - } - - local->sta_sw_scanning = 0; - if (ieee80211_hw_config(local)) - printk(KERN_DEBUG "%s: failed to restore operational " - "channel after scan\n", dev->name); - - - netif_tx_lock_bh(local->mdev); - netif_addr_lock(local->mdev); - local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC; - local->ops->configure_filter(local_to_hw(local), - FIF_BCN_PRBRESP_PROMISC, - &local->filter_flags, - local->mdev->mc_count, - local->mdev->mc_list); - - netif_addr_unlock(local->mdev); - netif_tx_unlock_bh(local->mdev); - - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - /* Tell AP we're back */ - if (sdata->vif.type == IEEE80211_IF_TYPE_STA && - sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) - ieee80211_send_nullfunc(local, sdata, 0); - - ieee80211_restart_sta_timer(sdata); - - netif_wake_queue(sdata->dev); - } - rcu_read_unlock(); - -done: - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) || - (!(ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED) && - !ieee80211_sta_active_ibss(sdata))) - ieee80211_sta_find_ibss(sdata, ifsta); - } -} -EXPORT_SYMBOL(ieee80211_scan_completed); - -void ieee80211_sta_scan_work(struct work_struct *work) -{ - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, scan_work.work); - struct net_device *dev = local->scan_dev; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_supported_band *sband; - struct ieee80211_channel *chan; - int skip; - unsigned long next_delay = 0; - - if (!local->sta_sw_scanning) - return; - - switch (local->scan_state) { - case SCAN_SET_CHANNEL: - /* - * Get current scan band. scan_band may be IEEE80211_NUM_BANDS - * after we successfully scanned the last channel of the last - * band (and the last band is supported by the hw) - */ - if (local->scan_band < IEEE80211_NUM_BANDS) - sband = local->hw.wiphy->bands[local->scan_band]; - else - sband = NULL; - - /* - * If we are at an unsupported band and have more bands - * left to scan, advance to the next supported one. - */ - while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) { - local->scan_band++; - sband = local->hw.wiphy->bands[local->scan_band]; - local->scan_channel_idx = 0; - } - - /* if no more bands/channels left, complete scan */ - if (!sband || local->scan_channel_idx >= sband->n_channels) { - ieee80211_scan_completed(local_to_hw(local)); - return; - } - skip = 0; - chan = &sband->channels[local->scan_channel_idx]; - - if (chan->flags & IEEE80211_CHAN_DISABLED || - (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && - chan->flags & IEEE80211_CHAN_NO_IBSS)) - skip = 1; - - if (!skip) { - local->scan_channel = chan; - if (ieee80211_hw_config(local)) { - printk(KERN_DEBUG "%s: failed to set freq to " - "%d MHz for scan\n", dev->name, - chan->center_freq); - skip = 1; - } - } - - /* advance state machine to next channel/band */ - local->scan_channel_idx++; - if (local->scan_channel_idx >= sband->n_channels) { - /* - * scan_band may end up == IEEE80211_NUM_BANDS, but - * we'll catch that case above and complete the scan - * if that is the case. - */ - local->scan_band++; - local->scan_channel_idx = 0; - } - - if (skip) - break; - - next_delay = IEEE80211_PROBE_DELAY + - usecs_to_jiffies(local->hw.channel_change_time); - local->scan_state = SCAN_SEND_PROBE; - break; - case SCAN_SEND_PROBE: - next_delay = IEEE80211_PASSIVE_CHANNEL_TIME; - local->scan_state = SCAN_SET_CHANNEL; - - if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN) - break; - ieee80211_send_probe_req(sdata, NULL, local->scan_ssid, - local->scan_ssid_len); - next_delay = IEEE80211_CHANNEL_TIME; - break; - } - - if (local->sta_sw_scanning) - queue_delayed_work(local->hw.workqueue, &local->scan_work, - next_delay); -} - - -static int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata, - u8 *ssid, size_t ssid_len) -{ - struct ieee80211_local *local = scan_sdata->local; - struct ieee80211_sub_if_data *sdata; - - if (ssid_len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; - - /* MLME-SCAN.request (page 118) page 144 (11.1.3.1) - * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS - * BSSID: MACAddress - * SSID - * ScanType: ACTIVE, PASSIVE - * ProbeDelay: delay (in microseconds) to be used prior to transmitting - * a Probe frame during active scanning - * ChannelList - * MinChannelTime (>= ProbeDelay), in TU - * MaxChannelTime: (>= MinChannelTime), in TU - */ - - /* MLME-SCAN.confirm - * BSSDescriptionSet - * ResultCode: SUCCESS, INVALID_PARAMETERS - */ - - if (local->sta_sw_scanning || local->sta_hw_scanning) { - if (local->scan_dev == scan_sdata->dev) - return 0; - return -EBUSY; - } - - if (local->ops->hw_scan) { - int rc = local->ops->hw_scan(local_to_hw(local), - ssid, ssid_len); - if (!rc) { - local->sta_hw_scanning = 1; - local->scan_dev = scan_sdata->dev; - } - return rc; - } - - local->sta_sw_scanning = 1; - - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - netif_stop_queue(sdata->dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_STA && - (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)) - ieee80211_send_nullfunc(local, sdata, 1); - } - rcu_read_unlock(); - - if (ssid) { - local->scan_ssid_len = ssid_len; - memcpy(local->scan_ssid, ssid, ssid_len); - } else - local->scan_ssid_len = 0; - local->scan_state = SCAN_SET_CHANNEL; - local->scan_channel_idx = 0; - local->scan_band = IEEE80211_BAND_2GHZ; - local->scan_dev = scan_sdata->dev; - - netif_addr_lock_bh(local->mdev); - local->filter_flags |= FIF_BCN_PRBRESP_PROMISC; - local->ops->configure_filter(local_to_hw(local), - FIF_BCN_PRBRESP_PROMISC, - &local->filter_flags, - local->mdev->mc_count, - local->mdev->mc_list); - netif_addr_unlock_bh(local->mdev); - - /* TODO: start scan as soon as all nullfunc frames are ACKed */ - queue_delayed_work(local->hw.workqueue, &local->scan_work, - IEEE80211_CHANNEL_TIME); - - return 0; -} - - -int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t ssid_len) -{ - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct ieee80211_local *local = sdata->local; - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return ieee80211_sta_start_scan(sdata, ssid, ssid_len); - - if (local->sta_sw_scanning || local->sta_hw_scanning) { - if (local->scan_dev == sdata->dev) - return 0; - return -EBUSY; - } - - ifsta->scan_ssid_len = ssid_len; - if (ssid_len) - memcpy(ifsta->scan_ssid, ssid, ssid_len); - set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request); - queue_work(local->hw.workqueue, &ifsta->work); - return 0; -} - - -static void ieee80211_sta_add_scan_ies(struct iw_request_info *info, - struct ieee80211_sta_bss *bss, - char **current_ev, char *end_buf) -{ - u8 *pos, *end, *next; - struct iw_event iwe; - - if (bss == NULL || bss->ies == NULL) - return; - - /* - * If needed, fragment the IEs buffer (at IE boundaries) into short - * enough fragments to fit into IW_GENERIC_IE_MAX octet messages. - */ - pos = bss->ies; - end = pos + bss->ies_len; - - while (end - pos > IW_GENERIC_IE_MAX) { - next = pos + 2 + pos[1]; - while (next + 2 + next[1] - pos < IW_GENERIC_IE_MAX) - next = next + 2 + next[1]; - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVGENIE; - iwe.u.data.length = next - pos; - *current_ev = iwe_stream_add_point(info, *current_ev, - end_buf, &iwe, pos); - - pos = next; - } - - if (end > pos) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVGENIE; - iwe.u.data.length = end - pos; - *current_ev = iwe_stream_add_point(info, *current_ev, - end_buf, &iwe, pos); - } -} - - -static char * -ieee80211_sta_scan_result(struct ieee80211_local *local, - struct iw_request_info *info, - struct ieee80211_sta_bss *bss, - char *current_ev, char *end_buf) -{ - struct iw_event iwe; - - if (time_after(jiffies, - bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE)) - return current_ev; - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWAP; - iwe.u.ap_addr.sa_family = ARPHRD_ETHER; - memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN); - current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, - IW_EV_ADDR_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWESSID; - if (bss_mesh_cfg(bss)) { - iwe.u.data.length = bss_mesh_id_len(bss); - iwe.u.data.flags = 1; - current_ev = iwe_stream_add_point(info, current_ev, end_buf, - &iwe, bss_mesh_id(bss)); - } else { - iwe.u.data.length = bss->ssid_len; - iwe.u.data.flags = 1; - current_ev = iwe_stream_add_point(info, current_ev, end_buf, - &iwe, bss->ssid); - } - - if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS) - || bss_mesh_cfg(bss)) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWMODE; - if (bss_mesh_cfg(bss)) - iwe.u.mode = IW_MODE_MESH; - else if (bss->capability & WLAN_CAPABILITY_ESS) - iwe.u.mode = IW_MODE_MASTER; - else - iwe.u.mode = IW_MODE_ADHOC; - current_ev = iwe_stream_add_event(info, current_ev, end_buf, - &iwe, IW_EV_UINT_LEN); - } - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWFREQ; - iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq); - iwe.u.freq.e = 0; - current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, - IW_EV_FREQ_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWFREQ; - iwe.u.freq.m = bss->freq; - iwe.u.freq.e = 6; - current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, - IW_EV_FREQ_LEN); - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVQUAL; - iwe.u.qual.qual = bss->qual; - iwe.u.qual.level = bss->signal; - iwe.u.qual.noise = bss->noise; - iwe.u.qual.updated = local->wstats_flags; - current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, - IW_EV_QUAL_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWENCODE; - if (bss->capability & WLAN_CAPABILITY_PRIVACY) - iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; - else - iwe.u.data.flags = IW_ENCODE_DISABLED; - iwe.u.data.length = 0; - current_ev = iwe_stream_add_point(info, current_ev, end_buf, - &iwe, ""); - - ieee80211_sta_add_scan_ies(info, bss, ¤t_ev, end_buf); - - if (bss && bss->supp_rates_len > 0) { - /* display all supported rates in readable format */ - char *p = current_ev + iwe_stream_lcp_len(info); - int i; - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWRATE; - /* Those two flags are ignored... */ - iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; - - for (i = 0; i < bss->supp_rates_len; i++) { - iwe.u.bitrate.value = ((bss->supp_rates[i] & - 0x7f) * 500000); - p = iwe_stream_add_value(info, current_ev, p, - end_buf, &iwe, IW_EV_PARAM_LEN); - } - current_ev = p; - } - - if (bss) { - char *buf; - buf = kmalloc(30, GFP_ATOMIC); - if (buf) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp)); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, " Last beacon: %dms ago", - jiffies_to_msecs(jiffies - bss->last_update)); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, &iwe, buf); - kfree(buf); - } - } - - if (bss_mesh_cfg(bss)) { - char *buf; - u8 *cfg = bss_mesh_cfg(bss); - buf = kmalloc(50, GFP_ATOMIC); - if (buf) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, "Mesh network (version %d)", cfg[0]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - sprintf(buf, "Path Selection Protocol ID: " - "0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3], - cfg[4]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - sprintf(buf, "Path Selection Metric ID: " - "0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7], - cfg[8]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - sprintf(buf, "Congestion Control Mode ID: " - "0x%02X%02X%02X%02X", cfg[9], cfg[10], - cfg[11], cfg[12]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - sprintf(buf, "Channel Precedence: " - "0x%02X%02X%02X%02X", cfg[13], cfg[14], - cfg[15], cfg[16]); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(info, current_ev, - end_buf, - &iwe, buf); - kfree(buf); - } - } - - return current_ev; -} - - -int ieee80211_sta_scan_results(struct ieee80211_local *local, - struct iw_request_info *info, - char *buf, size_t len) -{ - char *current_ev = buf; - char *end_buf = buf + len; - struct ieee80211_sta_bss *bss; - - spin_lock_bh(&local->sta_bss_lock); - list_for_each_entry(bss, &local->sta_bss_list, list) { - if (buf + len - current_ev <= IW_EV_ADDR_LEN) { - spin_unlock_bh(&local->sta_bss_lock); - return -E2BIG; - } - current_ev = ieee80211_sta_scan_result(local, info, bss, - current_ev, end_buf); - } - spin_unlock_bh(&local->sta_bss_lock); - return current_ev - buf; -} - - int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len) { struct ieee80211_if_sta *ifsta = &sdata->u.sta; @@ -4367,6 +2402,85 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, } +static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_sta_bss *bss, *selected = NULL; + int top_rssi = 0, freq; + + spin_lock_bh(&local->sta_bss_lock); + freq = local->oper_channel->center_freq; + list_for_each_entry(bss, &local->sta_bss_list, list) { + if (!(bss->capability & WLAN_CAPABILITY_ESS)) + continue; + + if ((ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL | + IEEE80211_STA_AUTO_BSSID_SEL | + IEEE80211_STA_AUTO_CHANNEL_SEL)) && + (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^ + !!sdata->default_key)) + continue; + + if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) && + bss->freq != freq) + continue; + + if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) && + memcmp(bss->bssid, ifsta->bssid, ETH_ALEN)) + continue; + + if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) && + !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len)) + continue; + + if (!selected || top_rssi < bss->signal) { + selected = bss; + top_rssi = bss->signal; + } + } + if (selected) + atomic_inc(&selected->users); + spin_unlock_bh(&local->sta_bss_lock); + + if (selected) { + ieee80211_set_freq(sdata, selected->freq); + if (!(ifsta->flags & IEEE80211_STA_SSID_SET)) + ieee80211_sta_set_ssid(sdata, selected->ssid, + selected->ssid_len); + ieee80211_sta_set_bssid(sdata, selected->bssid); + ieee80211_sta_def_wmm_params(sdata, selected); + + /* Send out direct probe if no probe resp was received or + * the one we have is outdated + */ + if (!selected->last_probe_resp || + time_after(jiffies, selected->last_probe_resp + + IEEE80211_SCAN_RESULT_EXPIRE)) + ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE; + else + ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE; + + ieee80211_rx_bss_put(local, selected); + ieee80211_sta_reset_auth(sdata, ifsta); + return 0; + } else { + if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) { + ifsta->assoc_scan_tries++; + if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) + ieee80211_sta_start_scan(sdata, NULL, 0); + else + ieee80211_sta_start_scan(sdata, ifsta->ssid, + ifsta->ssid_len); + ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE; + set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); + } else + ifsta->state = IEEE80211_STA_MLME_DISABLED; + } + return -1; +} + + int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason) { struct ieee80211_if_sta *ifsta = &sdata->u.sta; @@ -4378,8 +2492,7 @@ int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason sdata->vif.type != IEEE80211_IF_TYPE_IBSS) return -EINVAL; - ieee80211_send_deauth(sdata, ifsta, reason); - ieee80211_set_disassoc(sdata, ifsta, 1); + ieee80211_set_disassoc(sdata, ifsta, true, true, reason); return 0; } @@ -4397,8 +2510,7 @@ int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason) if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED)) return -1; - ieee80211_send_disassoc(sdata, ifsta, reason); - ieee80211_set_disassoc(sdata, ifsta, 0); + ieee80211_set_disassoc(sdata, ifsta, false, true, reason); return 0; } @@ -4422,3 +2534,102 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw, } } EXPORT_SYMBOL(ieee80211_notify_mac); + +void ieee80211_sta_work(struct work_struct *work) +{ + struct ieee80211_sub_if_data *sdata = + container_of(work, struct ieee80211_sub_if_data, u.sta.work); + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_sta *ifsta; + struct sk_buff *skb; + + if (!netif_running(sdata->dev)) + return; + + if (local->sta_sw_scanning || local->sta_hw_scanning) + return; + + if (WARN_ON(sdata->vif.type != IEEE80211_IF_TYPE_STA && + sdata->vif.type != IEEE80211_IF_TYPE_IBSS && + sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)) + return; + ifsta = &sdata->u.sta; + + while ((skb = skb_dequeue(&ifsta->skb_queue))) + ieee80211_sta_rx_queued_mgmt(sdata, skb); + +#ifdef CONFIG_MAC80211_MESH + if (ifsta->preq_queue_len && + time_after(jiffies, + ifsta->last_preq + msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval))) + mesh_path_start_discovery(sdata); +#endif + + if (ifsta->state != IEEE80211_STA_MLME_DIRECT_PROBE && + ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE && + ifsta->state != IEEE80211_STA_MLME_ASSOCIATE && + test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) { + ieee80211_sta_start_scan(sdata, ifsta->scan_ssid, ifsta->scan_ssid_len); + return; + } + + if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) { + if (ieee80211_sta_config_auth(sdata, ifsta)) + return; + clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request); + } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request)) + return; + + switch (ifsta->state) { + case IEEE80211_STA_MLME_DISABLED: + break; + case IEEE80211_STA_MLME_DIRECT_PROBE: + ieee80211_direct_probe(sdata, ifsta); + break; + case IEEE80211_STA_MLME_AUTHENTICATE: + ieee80211_authenticate(sdata, ifsta); + break; + case IEEE80211_STA_MLME_ASSOCIATE: + ieee80211_associate(sdata, ifsta); + break; + case IEEE80211_STA_MLME_ASSOCIATED: + ieee80211_associated(sdata, ifsta); + break; + case IEEE80211_STA_MLME_IBSS_SEARCH: + ieee80211_sta_find_ibss(sdata, ifsta); + break; + case IEEE80211_STA_MLME_IBSS_JOINED: + ieee80211_sta_merge_ibss(sdata, ifsta); + break; +#ifdef CONFIG_MAC80211_MESH + case IEEE80211_STA_MLME_MESH_UP: + ieee80211_mesh_housekeeping(sdata, ifsta); + break; +#endif + default: + WARN_ON(1); + break; + } + + if (ieee80211_privacy_mismatch(sdata, ifsta)) { + printk(KERN_DEBUG "%s: privacy configuration mismatch and " + "mixed-cell disabled - disassociate\n", sdata->dev->name); + + ieee80211_set_disassoc(sdata, ifsta, false, true, + WLAN_REASON_UNSPECIFIED); + } +} + +void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) +{ + struct ieee80211_sub_if_data *sdata = local->scan_sdata; + struct ieee80211_if_sta *ifsta; + + if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { + ifsta = &sdata->u.sta; + if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) || + (!(ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED) && + !ieee80211_sta_active_ibss(sdata))) + ieee80211_sta_find_ibss(sdata, ifsta); + } +} diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 7e09b30..d080379 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1511,22 +1511,95 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx) } static ieee80211_rx_result debug_noinline +ieee80211_rx_h_action(struct ieee80211_rx_data *rx) +{ + struct ieee80211_local *local = rx->local; + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev); + struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data; + int len = rx->skb->len; + + if (!ieee80211_is_action(mgmt->frame_control)) + return RX_CONTINUE; + + if (!rx->sta) + return RX_DROP_MONITOR; + + if (!(rx->flags & IEEE80211_RX_RA_MATCH)) + return RX_DROP_MONITOR; + + /* all categories we currently handle have action_code */ + if (len < IEEE80211_MIN_ACTION_SIZE + 1) + return RX_DROP_MONITOR; + + /* + * FIXME: revisit this, I'm sure we should handle most + * of these frames in other modes as well! + */ + if (sdata->vif.type != IEEE80211_IF_TYPE_STA && + sdata->vif.type != IEEE80211_IF_TYPE_IBSS) + return RX_DROP_MONITOR; + + switch (mgmt->u.action.category) { + case WLAN_CATEGORY_BACK: + switch (mgmt->u.action.u.addba_req.action_code) { + case WLAN_ACTION_ADDBA_REQ: + if (len < (IEEE80211_MIN_ACTION_SIZE + + sizeof(mgmt->u.action.u.addba_req))) + return RX_DROP_MONITOR; + ieee80211_process_addba_request(local, rx->sta, mgmt, len); + break; + case WLAN_ACTION_ADDBA_RESP: + if (len < (IEEE80211_MIN_ACTION_SIZE + + sizeof(mgmt->u.action.u.addba_resp))) + return RX_DROP_MONITOR; + ieee80211_process_addba_resp(local, rx->sta, mgmt, len); + break; + case WLAN_ACTION_DELBA: + if (len < (IEEE80211_MIN_ACTION_SIZE + + sizeof(mgmt->u.action.u.delba))) + return RX_DROP_MONITOR; + ieee80211_process_delba(sdata, rx->sta, mgmt, len); + break; + } + break; + case WLAN_CATEGORY_SPECTRUM_MGMT: + if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ) + return RX_DROP_MONITOR; + switch (mgmt->u.action.u.measurement.action_code) { + case WLAN_ACTION_SPCT_MSR_REQ: + if (len < (IEEE80211_MIN_ACTION_SIZE + + sizeof(mgmt->u.action.u.measurement))) + return RX_DROP_MONITOR; + ieee80211_process_measurement_req(sdata, mgmt, len); + break; + } + break; + default: + return RX_CONTINUE; + } + + rx->sta->rx_packets++; + dev_kfree_skb(rx->skb); + return RX_QUEUED; +} + +static ieee80211_rx_result debug_noinline ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx) { - struct ieee80211_sub_if_data *sdata; + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev); if (!(rx->flags & IEEE80211_RX_RA_MATCH)) return RX_DROP_MONITOR; - sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev); - if ((sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS || - sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) && - !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)) - ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status); - else + if (sdata->vif.type != IEEE80211_IF_TYPE_STA && + sdata->vif.type != IEEE80211_IF_TYPE_IBSS && + sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) + return RX_DROP_MONITOR; + + if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) return RX_DROP_MONITOR; + ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status); return RX_QUEUED; } @@ -1689,6 +1762,7 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata, CALL_RXH(ieee80211_rx_h_mesh_fwding); CALL_RXH(ieee80211_rx_h_data) CALL_RXH(ieee80211_rx_h_ctrl) + CALL_RXH(ieee80211_rx_h_action) CALL_RXH(ieee80211_rx_h_mgmt) #undef CALL_RXH diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c new file mode 100644 index 0000000..010781b --- /dev/null +++ b/net/mac80211/scan.c @@ -0,0 +1,933 @@ +/* + * Scanning implementation + * + * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi> + * Copyright 2004, Instant802 Networks, Inc. + * Copyright 2005, Devicescape Software, Inc. + * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> + * Copyright 2007, Michael Wu <flamingice@sourmilk.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* TODO: + * order BSS list by RSSI(?) ("quality of AP") + * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE, + * SSID) + */ + +#include <linux/wireless.h> +#include <linux/if_arp.h> +#include <net/mac80211.h> +#include <net/iw_handler.h> + +#include "ieee80211_i.h" +#include "mesh.h" + +#define IEEE80211_PROBE_DELAY (HZ / 33) +#define IEEE80211_CHANNEL_TIME (HZ / 33) +#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5) + +void ieee80211_rx_bss_list_init(struct ieee80211_local *local) +{ + spin_lock_init(&local->sta_bss_lock); + INIT_LIST_HEAD(&local->sta_bss_list); +} + +void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local) +{ + struct ieee80211_sta_bss *bss, *tmp; + + list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list) + ieee80211_rx_bss_put(local, bss); +} + +struct ieee80211_sta_bss * +ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, + u8 *ssid, u8 ssid_len) +{ + struct ieee80211_sta_bss *bss; + + spin_lock_bh(&local->sta_bss_lock); + bss = local->sta_bss_hash[STA_HASH(bssid)]; + while (bss) { + if (!bss_mesh_cfg(bss) && + !memcmp(bss->bssid, bssid, ETH_ALEN) && + bss->freq == freq && + bss->ssid_len == ssid_len && + (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) { + atomic_inc(&bss->users); + break; + } + bss = bss->hnext; + } + spin_unlock_bh(&local->sta_bss_lock); + return bss; +} + +/* Caller must hold local->sta_bss_lock */ +static void __ieee80211_rx_bss_hash_add(struct ieee80211_local *local, + struct ieee80211_sta_bss *bss) +{ + u8 hash_idx; + + if (bss_mesh_cfg(bss)) + hash_idx = mesh_id_hash(bss_mesh_id(bss), + bss_mesh_id_len(bss)); + else + hash_idx = STA_HASH(bss->bssid); + + bss->hnext = local->sta_bss_hash[hash_idx]; + local->sta_bss_hash[hash_idx] = bss; +} + +/* Caller must hold local->sta_bss_lock */ +static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local, + struct ieee80211_sta_bss *bss) +{ + struct ieee80211_sta_bss *b, *prev = NULL; + b = local->sta_bss_hash[STA_HASH(bss->bssid)]; + while (b) { + if (b == bss) { + if (!prev) + local->sta_bss_hash[STA_HASH(bss->bssid)] = + bss->hnext; + else + prev->hnext = bss->hnext; + break; + } + prev = b; + b = b->hnext; + } +} + +struct ieee80211_sta_bss * +ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq, + u8 *ssid, u8 ssid_len) +{ + struct ieee80211_sta_bss *bss; + + bss = kzalloc(sizeof(*bss), GFP_ATOMIC); + if (!bss) + return NULL; + atomic_set(&bss->users, 2); + memcpy(bss->bssid, bssid, ETH_ALEN); + bss->freq = freq; + if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) { + memcpy(bss->ssid, ssid, ssid_len); + bss->ssid_len = ssid_len; + } + + spin_lock_bh(&local->sta_bss_lock); + /* TODO: order by RSSI? */ + list_add_tail(&bss->list, &local->sta_bss_list); + __ieee80211_rx_bss_hash_add(local, bss); + spin_unlock_bh(&local->sta_bss_lock); + return bss; +} + +#ifdef CONFIG_MAC80211_MESH +static struct ieee80211_sta_bss * +ieee80211_rx_mesh_bss_get(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len, + u8 *mesh_cfg, int freq) +{ + struct ieee80211_sta_bss *bss; + + spin_lock_bh(&local->sta_bss_lock); + bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)]; + while (bss) { + if (bss_mesh_cfg(bss) && + !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) && + bss->freq == freq && + mesh_id_len == bss->mesh_id_len && + (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id, + mesh_id_len))) { + atomic_inc(&bss->users); + break; + } + bss = bss->hnext; + } + spin_unlock_bh(&local->sta_bss_lock); + return bss; +} + +static struct ieee80211_sta_bss * +ieee80211_rx_mesh_bss_add(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len, + u8 *mesh_cfg, int mesh_config_len, int freq) +{ + struct ieee80211_sta_bss *bss; + + if (mesh_config_len != MESH_CFG_LEN) + return NULL; + + bss = kzalloc(sizeof(*bss), GFP_ATOMIC); + if (!bss) + return NULL; + + bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC); + if (!bss->mesh_cfg) { + kfree(bss); + return NULL; + } + + if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) { + bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC); + if (!bss->mesh_id) { + kfree(bss->mesh_cfg); + kfree(bss); + return NULL; + } + memcpy(bss->mesh_id, mesh_id, mesh_id_len); + } + + atomic_set(&bss->users, 2); + memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN); + bss->mesh_id_len = mesh_id_len; + bss->freq = freq; + spin_lock_bh(&local->sta_bss_lock); + /* TODO: order by RSSI? */ + list_add_tail(&bss->list, &local->sta_bss_list); + __ieee80211_rx_bss_hash_add(local, bss); + spin_unlock_bh(&local->sta_bss_lock); + return bss; +} +#endif + +static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss) +{ + kfree(bss->ies); + kfree(bss_mesh_id(bss)); + kfree(bss_mesh_cfg(bss)); + kfree(bss); +} + +void ieee80211_rx_bss_put(struct ieee80211_local *local, + struct ieee80211_sta_bss *bss) +{ + local_bh_disable(); + if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) { + local_bh_enable(); + return; + } + + __ieee80211_rx_bss_hash_del(local, bss); + list_del(&bss->list); + spin_unlock_bh(&local->sta_bss_lock); + ieee80211_rx_bss_free(bss); +} + +struct ieee80211_sta_bss * +ieee80211_bss_info_update(struct ieee80211_local *local, + struct ieee80211_rx_status *rx_status, + struct ieee80211_mgmt *mgmt, + size_t len, + struct ieee802_11_elems *elems, + int freq, bool beacon) +{ + struct ieee80211_sta_bss *bss; + int clen; + +#ifdef CONFIG_MAC80211_MESH + if (elems->mesh_config) + bss = ieee80211_rx_mesh_bss_get(local, elems->mesh_id, + elems->mesh_id_len, elems->mesh_config, freq); + else +#endif + bss = ieee80211_rx_bss_get(local, mgmt->bssid, freq, + elems->ssid, elems->ssid_len); + if (!bss) { +#ifdef CONFIG_MAC80211_MESH + if (elems->mesh_config) + bss = ieee80211_rx_mesh_bss_add(local, elems->mesh_id, + elems->mesh_id_len, elems->mesh_config, + elems->mesh_config_len, freq); + else +#endif + bss = ieee80211_rx_bss_add(local, mgmt->bssid, freq, + elems->ssid, elems->ssid_len); + if (!bss) + return NULL; + } else { +#if 0 + /* TODO: order by RSSI? */ + spin_lock_bh(&local->sta_bss_lock); + list_move_tail(&bss->list, &local->sta_bss_list); + spin_unlock_bh(&local->sta_bss_lock); +#endif + } + + /* save the ERP value so that it is available at association time */ + if (elems->erp_info && elems->erp_info_len >= 1) { + bss->erp_value = elems->erp_info[0]; + bss->has_erp_value = 1; + } + + bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int); + bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info); + + if (elems->tim) { + struct ieee80211_tim_ie *tim_ie = + (struct ieee80211_tim_ie *)elems->tim; + bss->dtim_period = tim_ie->dtim_period; + } + + /* set default value for buggy APs */ + if (!elems->tim || bss->dtim_period == 0) + bss->dtim_period = 1; + + bss->supp_rates_len = 0; + if (elems->supp_rates) { + clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len; + if (clen > elems->supp_rates_len) + clen = elems->supp_rates_len; + memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates, + clen); + bss->supp_rates_len += clen; + } + if (elems->ext_supp_rates) { + clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len; + if (clen > elems->ext_supp_rates_len) + clen = elems->ext_supp_rates_len; + memcpy(&bss->supp_rates[bss->supp_rates_len], + elems->ext_supp_rates, clen); + bss->supp_rates_len += clen; + } + + bss->band = rx_status->band; + + bss->timestamp = le64_to_cpu(mgmt->u.beacon.timestamp); + bss->last_update = jiffies; + bss->signal = rx_status->signal; + bss->noise = rx_status->noise; + bss->qual = rx_status->qual; + bss->wmm_used = elems->wmm_param || elems->wmm_info; + + if (!beacon) + bss->last_probe_resp = jiffies; + + /* + * For probe responses, or if we don't have any information yet, + * use the IEs from the beacon. + */ + if (!bss->ies || !beacon) { + if (bss->ies == NULL || bss->ies_len < elems->total_len) { + kfree(bss->ies); + bss->ies = kmalloc(elems->total_len, GFP_ATOMIC); + } + if (bss->ies) { + memcpy(bss->ies, elems->ie_start, elems->total_len); + bss->ies_len = elems->total_len; + } else + bss->ies_len = 0; + } + + return bss; +} + +ieee80211_rx_result +ieee80211_sta_rx_scan(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, + struct ieee80211_rx_status *rx_status) +{ + struct ieee80211_mgmt *mgmt; + struct ieee80211_sta_bss *bss; + u8 *elements; + struct ieee80211_channel *channel; + size_t baselen; + int freq; + __le16 fc; + bool presp, beacon = false; + struct ieee802_11_elems elems; + + if (skb->len < 2) + return RX_DROP_UNUSABLE; + + mgmt = (struct ieee80211_mgmt *) skb->data; + fc = mgmt->frame_control; + + if (ieee80211_is_ctl(fc)) + return RX_CONTINUE; + + if (skb->len < 24) + return RX_DROP_MONITOR; + + presp = ieee80211_is_probe_resp(fc); + if (presp) { + /* ignore ProbeResp to foreign address */ + if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN)) + return RX_DROP_MONITOR; + + presp = true; + elements = mgmt->u.probe_resp.variable; + baselen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); + } else { + beacon = ieee80211_is_beacon(fc); + baselen = offsetof(struct ieee80211_mgmt, u.beacon.variable); + elements = mgmt->u.beacon.variable; + } + + if (!presp && !beacon) + return RX_CONTINUE; + + if (baselen > skb->len) + return RX_DROP_MONITOR; + + ieee802_11_parse_elems(elements, skb->len - baselen, &elems); + + if (elems.ds_params && elems.ds_params_len == 1) + freq = ieee80211_channel_to_frequency(elems.ds_params[0]); + else + freq = rx_status->freq; + + channel = ieee80211_get_channel(sdata->local->hw.wiphy, freq); + + if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) + return RX_DROP_MONITOR; + + bss = ieee80211_bss_info_update(sdata->local, rx_status, + mgmt, skb->len, &elems, + freq, beacon); + ieee80211_rx_bss_put(sdata->local, bss); + + dev_kfree_skb(skb); + return RX_QUEUED; +} + +static void ieee80211_send_nullfunc(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + int powersave) +{ + struct sk_buff *skb; + struct ieee80211_hdr *nullfunc; + __le16 fc; + + skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24); + if (!skb) { + printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc " + "frame\n", sdata->dev->name); + return; + } + skb_reserve(skb, local->hw.extra_tx_headroom); + + nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24); + memset(nullfunc, 0, 24); + fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC | + IEEE80211_FCTL_TODS); + if (powersave) + fc |= cpu_to_le16(IEEE80211_FCTL_PM); + nullfunc->frame_control = fc; + memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN); + memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN); + memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN); + + ieee80211_tx_skb(sdata, skb, 0); +} + +static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) +{ + if (sdata->vif.type == IEEE80211_IF_TYPE_STA || + ieee80211_vif_is_mesh(&sdata->vif)) + ieee80211_sta_timer((unsigned long)sdata); +} + +void ieee80211_scan_completed(struct ieee80211_hw *hw) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata; + union iwreq_data wrqu; + + local->last_scan_completed = jiffies; + memset(&wrqu, 0, sizeof(wrqu)); + wireless_send_event(local->scan_sdata->dev, SIOCGIWSCAN, &wrqu, NULL); + + if (local->sta_hw_scanning) { + local->sta_hw_scanning = 0; + if (ieee80211_hw_config(local)) + printk(KERN_DEBUG "%s: failed to restore operational " + "channel after scan\n", wiphy_name(local->hw.wiphy)); + /* Restart STA timer for HW scan case */ + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) + ieee80211_restart_sta_timer(sdata); + rcu_read_unlock(); + + goto done; + } + + local->sta_sw_scanning = 0; + if (ieee80211_hw_config(local)) + printk(KERN_DEBUG "%s: failed to restore operational " + "channel after scan\n", wiphy_name(local->hw.wiphy)); + + + netif_tx_lock_bh(local->mdev); + netif_addr_lock(local->mdev); + local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC; + local->ops->configure_filter(local_to_hw(local), + FIF_BCN_PRBRESP_PROMISC, + &local->filter_flags, + local->mdev->mc_count, + local->mdev->mc_list); + + netif_addr_unlock(local->mdev); + netif_tx_unlock_bh(local->mdev); + + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) { + /* Tell AP we're back */ + if (sdata->vif.type == IEEE80211_IF_TYPE_STA) { + if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) { + ieee80211_send_nullfunc(local, sdata, 0); + netif_tx_wake_all_queues(sdata->dev); + } + } else + netif_tx_wake_all_queues(sdata->dev); + + ieee80211_restart_sta_timer(sdata); + } + rcu_read_unlock(); + + done: + ieee80211_mlme_notify_scan_completed(local); +} +EXPORT_SYMBOL(ieee80211_scan_completed); + + +void ieee80211_sta_scan_work(struct work_struct *work) +{ + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, scan_work.work); + struct ieee80211_sub_if_data *sdata = local->scan_sdata; + struct ieee80211_supported_band *sband; + struct ieee80211_channel *chan; + int skip; + unsigned long next_delay = 0; + + if (!local->sta_sw_scanning) + return; + + switch (local->scan_state) { + case SCAN_SET_CHANNEL: + /* + * Get current scan band. scan_band may be IEEE80211_NUM_BANDS + * after we successfully scanned the last channel of the last + * band (and the last band is supported by the hw) + */ + if (local->scan_band < IEEE80211_NUM_BANDS) + sband = local->hw.wiphy->bands[local->scan_band]; + else + sband = NULL; + + /* + * If we are at an unsupported band and have more bands + * left to scan, advance to the next supported one. + */ + while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) { + local->scan_band++; + sband = local->hw.wiphy->bands[local->scan_band]; + local->scan_channel_idx = 0; + } + + /* if no more bands/channels left, complete scan */ + if (!sband || local->scan_channel_idx >= sband->n_channels) { + ieee80211_scan_completed(local_to_hw(local)); + return; + } + skip = 0; + chan = &sband->channels[local->scan_channel_idx]; + + if (chan->flags & IEEE80211_CHAN_DISABLED || + (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && + chan->flags & IEEE80211_CHAN_NO_IBSS)) + skip = 1; + + if (!skip) { + local->scan_channel = chan; + if (ieee80211_hw_config(local)) { + printk(KERN_DEBUG "%s: failed to set freq to " + "%d MHz for scan\n", wiphy_name(local->hw.wiphy), + chan->center_freq); + skip = 1; + } + } + + /* advance state machine to next channel/band */ + local->scan_channel_idx++; + if (local->scan_channel_idx >= sband->n_channels) { + /* + * scan_band may end up == IEEE80211_NUM_BANDS, but + * we'll catch that case above and complete the scan + * if that is the case. + */ + local->scan_band++; + local->scan_channel_idx = 0; + } + + if (skip) + break; + + next_delay = IEEE80211_PROBE_DELAY + + usecs_to_jiffies(local->hw.channel_change_time); + local->scan_state = SCAN_SEND_PROBE; + break; + case SCAN_SEND_PROBE: + next_delay = IEEE80211_PASSIVE_CHANNEL_TIME; + local->scan_state = SCAN_SET_CHANNEL; + + if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN) + break; + ieee80211_send_probe_req(sdata, NULL, local->scan_ssid, + local->scan_ssid_len); + next_delay = IEEE80211_CHANNEL_TIME; + break; + } + + if (local->sta_sw_scanning) + queue_delayed_work(local->hw.workqueue, &local->scan_work, + next_delay); +} + + +int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata, + u8 *ssid, size_t ssid_len) +{ + struct ieee80211_local *local = scan_sdata->local; + struct ieee80211_sub_if_data *sdata; + + if (ssid_len > IEEE80211_MAX_SSID_LEN) + return -EINVAL; + + /* MLME-SCAN.request (page 118) page 144 (11.1.3.1) + * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS + * BSSID: MACAddress + * SSID + * ScanType: ACTIVE, PASSIVE + * ProbeDelay: delay (in microseconds) to be used prior to transmitting + * a Probe frame during active scanning + * ChannelList + * MinChannelTime (>= ProbeDelay), in TU + * MaxChannelTime: (>= MinChannelTime), in TU + */ + + /* MLME-SCAN.confirm + * BSSDescriptionSet + * ResultCode: SUCCESS, INVALID_PARAMETERS + */ + + if (local->sta_sw_scanning || local->sta_hw_scanning) { + if (local->scan_sdata == scan_sdata) + return 0; + return -EBUSY; + } + + if (local->ops->hw_scan) { + int rc = local->ops->hw_scan(local_to_hw(local), + ssid, ssid_len); + if (!rc) { + local->sta_hw_scanning = 1; + local->scan_sdata = scan_sdata; + } + return rc; + } + + local->sta_sw_scanning = 1; + + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) { + if (sdata->vif.type == IEEE80211_IF_TYPE_STA) { + if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) { + netif_tx_stop_all_queues(sdata->dev); + ieee80211_send_nullfunc(local, sdata, 1); + } + } else + netif_tx_stop_all_queues(sdata->dev); + } + rcu_read_unlock(); + + if (ssid) { + local->scan_ssid_len = ssid_len; + memcpy(local->scan_ssid, ssid, ssid_len); + } else + local->scan_ssid_len = 0; + local->scan_state = SCAN_SET_CHANNEL; + local->scan_channel_idx = 0; + local->scan_band = IEEE80211_BAND_2GHZ; + local->scan_sdata = scan_sdata; + + netif_addr_lock_bh(local->mdev); + local->filter_flags |= FIF_BCN_PRBRESP_PROMISC; + local->ops->configure_filter(local_to_hw(local), + FIF_BCN_PRBRESP_PROMISC, + &local->filter_flags, + local->mdev->mc_count, + local->mdev->mc_list); + netif_addr_unlock_bh(local->mdev); + + /* TODO: start scan as soon as all nullfunc frames are ACKed */ + queue_delayed_work(local->hw.workqueue, &local->scan_work, + IEEE80211_CHANNEL_TIME); + + return 0; +} + + +int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t ssid_len) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_sta *ifsta; + + if (sdata->vif.type != IEEE80211_IF_TYPE_STA) + return ieee80211_sta_start_scan(sdata, ssid, ssid_len); + + /* + * STA has a state machine that might need to defer scanning + * while it's trying to associate/authenticate, therefore we + * queue it up to the state machine in that case. + */ + + if (local->sta_sw_scanning || local->sta_hw_scanning) { + if (local->scan_sdata == sdata) + return 0; + return -EBUSY; + } + + ifsta = &sdata->u.sta; + + ifsta->scan_ssid_len = ssid_len; + if (ssid_len) + memcpy(ifsta->scan_ssid, ssid, ssid_len); + set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request); + queue_work(local->hw.workqueue, &ifsta->work); + + return 0; +} + + +static void ieee80211_sta_add_scan_ies(struct iw_request_info *info, + struct ieee80211_sta_bss *bss, + char **current_ev, char *end_buf) +{ + u8 *pos, *end, *next; + struct iw_event iwe; + + if (bss == NULL || bss->ies == NULL) + return; + + /* + * If needed, fragment the IEs buffer (at IE boundaries) into short + * enough fragments to fit into IW_GENERIC_IE_MAX octet messages. + */ + pos = bss->ies; + end = pos + bss->ies_len; + + while (end - pos > IW_GENERIC_IE_MAX) { + next = pos + 2 + pos[1]; + while (next + 2 + next[1] - pos < IW_GENERIC_IE_MAX) + next = next + 2 + next[1]; + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVGENIE; + iwe.u.data.length = next - pos; + *current_ev = iwe_stream_add_point(info, *current_ev, + end_buf, &iwe, pos); + + pos = next; + } + + if (end > pos) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVGENIE; + iwe.u.data.length = end - pos; + *current_ev = iwe_stream_add_point(info, *current_ev, + end_buf, &iwe, pos); + } +} + + +static char * +ieee80211_sta_scan_result(struct ieee80211_local *local, + struct iw_request_info *info, + struct ieee80211_sta_bss *bss, + char *current_ev, char *end_buf) +{ + struct iw_event iwe; + char *buf; + + if (time_after(jiffies, + bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE)) + return current_ev; + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWAP; + iwe.u.ap_addr.sa_family = ARPHRD_ETHER; + memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN); + current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, + IW_EV_ADDR_LEN); + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWESSID; + if (bss_mesh_cfg(bss)) { + iwe.u.data.length = bss_mesh_id_len(bss); + iwe.u.data.flags = 1; + current_ev = iwe_stream_add_point(info, current_ev, end_buf, + &iwe, bss_mesh_id(bss)); + } else { + iwe.u.data.length = bss->ssid_len; + iwe.u.data.flags = 1; + current_ev = iwe_stream_add_point(info, current_ev, end_buf, + &iwe, bss->ssid); + } + + if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS) + || bss_mesh_cfg(bss)) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWMODE; + if (bss_mesh_cfg(bss)) + iwe.u.mode = IW_MODE_MESH; + else if (bss->capability & WLAN_CAPABILITY_ESS) + iwe.u.mode = IW_MODE_MASTER; + else + iwe.u.mode = IW_MODE_ADHOC; + current_ev = iwe_stream_add_event(info, current_ev, end_buf, + &iwe, IW_EV_UINT_LEN); + } + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWFREQ; + iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq); + iwe.u.freq.e = 0; + current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, + IW_EV_FREQ_LEN); + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWFREQ; + iwe.u.freq.m = bss->freq; + iwe.u.freq.e = 6; + current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, + IW_EV_FREQ_LEN); + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVQUAL; + iwe.u.qual.qual = bss->qual; + iwe.u.qual.level = bss->signal; + iwe.u.qual.noise = bss->noise; + iwe.u.qual.updated = local->wstats_flags; + current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, + IW_EV_QUAL_LEN); + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWENCODE; + if (bss->capability & WLAN_CAPABILITY_PRIVACY) + iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; + else + iwe.u.data.flags = IW_ENCODE_DISABLED; + iwe.u.data.length = 0; + current_ev = iwe_stream_add_point(info, current_ev, end_buf, + &iwe, ""); + + ieee80211_sta_add_scan_ies(info, bss, ¤t_ev, end_buf); + + if (bss->supp_rates_len > 0) { + /* display all supported rates in readable format */ + char *p = current_ev + iwe_stream_lcp_len(info); + int i; + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWRATE; + /* Those two flags are ignored... */ + iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; + + for (i = 0; i < bss->supp_rates_len; i++) { + iwe.u.bitrate.value = ((bss->supp_rates[i] & + 0x7f) * 500000); + p = iwe_stream_add_value(info, current_ev, p, + end_buf, &iwe, IW_EV_PARAM_LEN); + } + current_ev = p; + } + + buf = kmalloc(30, GFP_ATOMIC); + if (buf) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVCUSTOM; + sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp)); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(info, current_ev, end_buf, + &iwe, buf); + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVCUSTOM; + sprintf(buf, " Last beacon: %dms ago", + jiffies_to_msecs(jiffies - bss->last_update)); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(info, current_ev, + end_buf, &iwe, buf); + kfree(buf); + } + + if (bss_mesh_cfg(bss)) { + u8 *cfg = bss_mesh_cfg(bss); + buf = kmalloc(50, GFP_ATOMIC); + if (buf) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVCUSTOM; + sprintf(buf, "Mesh network (version %d)", cfg[0]); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(info, current_ev, + end_buf, + &iwe, buf); + sprintf(buf, "Path Selection Protocol ID: " + "0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3], + cfg[4]); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(info, current_ev, + end_buf, + &iwe, buf); + sprintf(buf, "Path Selection Metric ID: " + "0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7], + cfg[8]); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(info, current_ev, + end_buf, + &iwe, buf); + sprintf(buf, "Congestion Control Mode ID: " + "0x%02X%02X%02X%02X", cfg[9], cfg[10], + cfg[11], cfg[12]); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(info, current_ev, + end_buf, + &iwe, buf); + sprintf(buf, "Channel Precedence: " + "0x%02X%02X%02X%02X", cfg[13], cfg[14], + cfg[15], cfg[16]); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(info, current_ev, + end_buf, + &iwe, buf); + kfree(buf); + } + } + + return current_ev; +} + + +int ieee80211_sta_scan_results(struct ieee80211_local *local, + struct iw_request_info *info, + char *buf, size_t len) +{ + char *current_ev = buf; + char *end_buf = buf + len; + struct ieee80211_sta_bss *bss; + + spin_lock_bh(&local->sta_bss_lock); + list_for_each_entry(bss, &local->sta_bss_list, list) { + if (buf + len - current_ev <= IW_EV_ADDR_LEN) { + spin_unlock_bh(&local->sta_bss_lock); + return -E2BIG; + } + current_ev = ieee80211_sta_scan_result(local, info, bss, + current_ev, end_buf); + } + spin_unlock_bh(&local->sta_bss_lock); + return current_ev - buf; +} diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c new file mode 100644 index 0000000..f72bad6 --- /dev/null +++ b/net/mac80211/spectmgmt.c @@ -0,0 +1,86 @@ +/* + * spectrum management + * + * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi> + * Copyright 2002-2005, Instant802 Networks, Inc. + * Copyright 2005-2006, Devicescape Software, Inc. + * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> + * Copyright 2007, Michael Wu <flamingice@sourmilk.net> + * Copyright 2007-2008, Intel Corporation + * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/ieee80211.h> +#include <net/wireless.h> +#include <net/mac80211.h> +#include "ieee80211_i.h" +#include "sta_info.h" +#include "wme.h" + +static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata, + struct ieee80211_msrment_ie *request_ie, + const u8 *da, const u8 *bssid, + u8 dialog_token) +{ + struct ieee80211_local *local = sdata->local; + struct sk_buff *skb; + struct ieee80211_mgmt *msr_report; + + skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom + + sizeof(struct ieee80211_msrment_ie)); + + if (!skb) { + printk(KERN_ERR "%s: failed to allocate buffer for " + "measurement report frame\n", sdata->dev->name); + return; + } + + skb_reserve(skb, local->hw.extra_tx_headroom); + msr_report = (struct ieee80211_mgmt *)skb_put(skb, 24); + memset(msr_report, 0, 24); + memcpy(msr_report->da, da, ETH_ALEN); + memcpy(msr_report->sa, sdata->dev->dev_addr, ETH_ALEN); + memcpy(msr_report->bssid, bssid, ETH_ALEN); + msr_report->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ACTION); + + skb_put(skb, 1 + sizeof(msr_report->u.action.u.measurement)); + msr_report->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; + msr_report->u.action.u.measurement.action_code = + WLAN_ACTION_SPCT_MSR_RPRT; + msr_report->u.action.u.measurement.dialog_token = dialog_token; + + msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT; + msr_report->u.action.u.measurement.length = + sizeof(struct ieee80211_msrment_ie); + + memset(&msr_report->u.action.u.measurement.msr_elem, 0, + sizeof(struct ieee80211_msrment_ie)); + msr_report->u.action.u.measurement.msr_elem.token = request_ie->token; + msr_report->u.action.u.measurement.msr_elem.mode |= + IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED; + msr_report->u.action.u.measurement.msr_elem.type = request_ie->type; + + ieee80211_tx_skb(sdata, skb, 0); +} + +void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, + size_t len) +{ + /* + * Ignoring measurement request is spec violation. + * Mandatory measurements must be reported optional + * measurements might be refused or reported incapable + * For now just refuse + * TODO: Answer basic measurement as unmeasured + */ + ieee80211_send_refuse_measurement_request(sdata, + &mgmt->u.action.u.measurement.msr_elem, + mgmt->sa, mgmt->bssid, + mgmt->u.action.u.measurement.dialog_token); +} diff --git a/net/mac80211/util.c b/net/mac80211/util.c index f40c060..c3a22ab 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -428,3 +428,187 @@ void ieee80211_iterate_active_interfaces_atomic( rcu_read_unlock(); } EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); + +void ieee802_11_parse_elems(u8 *start, size_t len, + struct ieee802_11_elems *elems) +{ + size_t left = len; + u8 *pos = start; + + memset(elems, 0, sizeof(*elems)); + elems->ie_start = start; + elems->total_len = len; + + while (left >= 2) { + u8 id, elen; + + id = *pos++; + elen = *pos++; + left -= 2; + + if (elen > left) + return; + + switch (id) { + case WLAN_EID_SSID: + elems->ssid = pos; + elems->ssid_len = elen; + break; + case WLAN_EID_SUPP_RATES: + elems->supp_rates = pos; + elems->supp_rates_len = elen; + break; + case WLAN_EID_FH_PARAMS: + elems->fh_params = pos; + elems->fh_params_len = elen; + break; + case WLAN_EID_DS_PARAMS: + elems->ds_params = pos; + elems->ds_params_len = elen; + break; + case WLAN_EID_CF_PARAMS: + elems->cf_params = pos; + elems->cf_params_len = elen; + break; + case WLAN_EID_TIM: + elems->tim = pos; + elems->tim_len = elen; + break; + case WLAN_EID_IBSS_PARAMS: + elems->ibss_params = pos; + elems->ibss_params_len = elen; + break; + case WLAN_EID_CHALLENGE: + elems->challenge = pos; + elems->challenge_len = elen; + break; + case WLAN_EID_WPA: + if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && + pos[2] == 0xf2) { + /* Microsoft OUI (00:50:F2) */ + if (pos[3] == 1) { + /* OUI Type 1 - WPA IE */ + elems->wpa = pos; + elems->wpa_len = elen; + } else if (elen >= 5 && pos[3] == 2) { + if (pos[4] == 0) { + elems->wmm_info = pos; + elems->wmm_info_len = elen; + } else if (pos[4] == 1) { + elems->wmm_param = pos; + elems->wmm_param_len = elen; + } + } + } + break; + case WLAN_EID_RSN: + elems->rsn = pos; + elems->rsn_len = elen; + break; + case WLAN_EID_ERP_INFO: + elems->erp_info = pos; + elems->erp_info_len = elen; + break; + case WLAN_EID_EXT_SUPP_RATES: + elems->ext_supp_rates = pos; + elems->ext_supp_rates_len = elen; + break; + case WLAN_EID_HT_CAPABILITY: + elems->ht_cap_elem = pos; + elems->ht_cap_elem_len = elen; + break; + case WLAN_EID_HT_EXTRA_INFO: + elems->ht_info_elem = pos; + elems->ht_info_elem_len = elen; + break; + case WLAN_EID_MESH_ID: + elems->mesh_id = pos; + elems->mesh_id_len = elen; + break; + case WLAN_EID_MESH_CONFIG: + elems->mesh_config = pos; + elems->mesh_config_len = elen; + break; + case WLAN_EID_PEER_LINK: + elems->peer_link = pos; + elems->peer_link_len = elen; + break; + case WLAN_EID_PREQ: + elems->preq = pos; + elems->preq_len = elen; + break; + case WLAN_EID_PREP: + elems->prep = pos; + elems->prep_len = elen; + break; + case WLAN_EID_PERR: + elems->perr = pos; + elems->perr_len = elen; + break; + case WLAN_EID_CHANNEL_SWITCH: + elems->ch_switch_elem = pos; + elems->ch_switch_elem_len = elen; + break; + case WLAN_EID_QUIET: + if (!elems->quiet_elem) { + elems->quiet_elem = pos; + elems->quiet_elem_len = elen; + } + elems->num_of_quiet_elem++; + break; + case WLAN_EID_COUNTRY: + elems->country_elem = pos; + elems->country_elem_len = elen; + break; + case WLAN_EID_PWR_CONSTRAINT: + elems->pwr_constr_elem = pos; + elems->pwr_constr_elem_len = elen; + break; + default: + break; + } + + left -= elen; + pos += elen; + } +} + +void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_tx_queue_params qparam; + int i; + + if (!local->ops->conf_tx) + return; + + memset(&qparam, 0, sizeof(qparam)); + + qparam.aifs = 2; + + if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ && + !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)) + qparam.cw_min = 31; + else + qparam.cw_min = 15; + + qparam.cw_max = 1023; + qparam.txop = 0; + + for (i = 0; i < local_to_hw(local)->queues; i++) + local->ops->conf_tx(local_to_hw(local), i, &qparam); +} + +void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, + int encrypt) +{ + skb->dev = sdata->local->mdev; + skb_set_mac_header(skb, 0); + skb_set_network_header(skb, 0); + skb_set_transport_header(skb, 0); + + skb->iif = sdata->dev->ifindex; + skb->do_not_encrypt = !encrypt; + + dev_queue_xmit(skb); +} |