diff options
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/debugfs_netdev.c | 2 | ||||
| -rw-r--r-- | net/mac80211/hostapd_ioctl.h | 8 | ||||
| -rw-r--r-- | net/mac80211/ieee80211.c | 449 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_common.h | 9 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 14 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_iface.c | 3 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_ioctl.c | 265 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_sta.c | 98 | ||||
| -rw-r--r-- | net/mac80211/rc80211_simple.c | 20 |
9 files changed, 551 insertions, 317 deletions
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index 9e3964638bad..a3e01d76d503 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -118,7 +118,7 @@ static ssize_t ieee80211_if_fmt_flags( sdata->u.sta.authenticated ? "AUTH\n" : "", sdata->u.sta.associated ? "ASSOC\n" : "", sdata->u.sta.probereq_poll ? "PROBEREQ POLL\n" : "", - sdata->u.sta.use_protection ? "CTS prot\n" : ""); + sdata->use_protection ? "CTS prot\n" : ""); } __IEEE80211_IF_FILE(flags); diff --git a/net/mac80211/hostapd_ioctl.h b/net/mac80211/hostapd_ioctl.h index 34fa128e9872..52da513f060a 100644 --- a/net/mac80211/hostapd_ioctl.h +++ b/net/mac80211/hostapd_ioctl.h @@ -26,24 +26,16 @@ * mess shall be deleted completely. */ enum { PRISM2_PARAM_IEEE_802_1X = 23, - PRISM2_PARAM_ANTSEL_TX = 24, - PRISM2_PARAM_ANTSEL_RX = 25, /* Instant802 additions */ PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES = 1001, - PRISM2_PARAM_DROP_UNENCRYPTED = 1002, PRISM2_PARAM_PREAMBLE = 1003, PRISM2_PARAM_SHORT_SLOT_TIME = 1006, PRISM2_PARAM_NEXT_MODE = 1008, - PRISM2_PARAM_CLEAR_KEYS = 1009, PRISM2_PARAM_RADIO_ENABLED = 1010, PRISM2_PARAM_ANTENNA_MODE = 1013, PRISM2_PARAM_STAT_TIME = 1016, PRISM2_PARAM_STA_ANTENNA_SEL = 1017, - PRISM2_PARAM_FORCE_UNICAST_RATE = 1018, - PRISM2_PARAM_RATE_CTRL_NUM_UP = 1019, - PRISM2_PARAM_RATE_CTRL_NUM_DOWN = 1020, - PRISM2_PARAM_MAX_RATECTRL_RATE = 1021, PRISM2_PARAM_TX_POWER_REDUCTION = 1022, PRISM2_PARAM_KEY_TX_RX_THRESHOLD = 1024, PRISM2_PARAM_DEFAULT_WEP_ONLY = 1026, diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c index 4e84f24fd439..2ddf4ef4065e 100644 --- a/net/mac80211/ieee80211.c +++ b/net/mac80211/ieee80211.c @@ -24,6 +24,7 @@ #include <linux/compiler.h> #include <linux/bitmap.h> #include <net/cfg80211.h> +#include <asm/unaligned.h> #include "ieee80211_common.h" #include "ieee80211_i.h" @@ -56,6 +57,17 @@ static const unsigned char eapol_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00, 0x88, 0x8e }; +/* + * For seeing transmitted packets on monitor interfaces + * we have a radiotap header too. + */ +struct ieee80211_tx_status_rtap_hdr { + struct ieee80211_radiotap_header hdr; + __le16 tx_flags; + u8 data_retries; +} __attribute__ ((packed)); + + static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata, struct ieee80211_hdr *hdr) { @@ -430,7 +442,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx) if (!tx->u.tx.rate) return TXRX_DROP; if (tx->u.tx.mode->mode == MODE_IEEE80211G && - tx->local->cts_protect_erp_frames && tx->fragmented && + tx->sdata->use_protection && tx->fragmented && extra.nonerp) { tx->u.tx.last_frag_rate = tx->u.tx.rate; tx->u.tx.probe_last_frag = extra.probe ? 1 : 0; @@ -528,7 +540,7 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx) /* reserve enough extra head and tail room for possible * encryption */ frag = frags[i] = - dev_alloc_skb(tx->local->hw.extra_tx_headroom + + dev_alloc_skb(tx->local->tx_headroom + frag_threshold + IEEE80211_ENCRYPT_HEADROOM + IEEE80211_ENCRYPT_TAILROOM); @@ -537,8 +549,8 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx) /* Make sure that all fragments use the same priority so * that they end up using the same TX queue */ frag->priority = first->priority; - skb_reserve(frag, tx->local->hw.extra_tx_headroom + - IEEE80211_ENCRYPT_HEADROOM); + skb_reserve(frag, tx->local->tx_headroom + + IEEE80211_ENCRYPT_HEADROOM); fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen); memcpy(fhdr, first->data, hdrlen); if (i == num_fragm - 2) @@ -856,8 +868,7 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx) * for the frame. */ if (mode->mode == MODE_IEEE80211G && (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) && - tx->u.tx.unicast && - tx->local->cts_protect_erp_frames && + tx->u.tx.unicast && tx->sdata->use_protection && !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS)) control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT; @@ -1118,7 +1129,138 @@ ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx) } -static void inline +/* + * deal with packet injection down monitor interface + * with Radiotap Header -- only called for monitor mode interface + */ + +static ieee80211_txrx_result +__ieee80211_parse_tx_radiotap( + struct ieee80211_txrx_data *tx, + struct sk_buff *skb, struct ieee80211_tx_control *control) +{ + /* + * this is the moment to interpret and discard the radiotap header that + * must be at the start of the packet injected in Monitor mode + * + * Need to take some care with endian-ness since radiotap + * args are little-endian + */ + + struct ieee80211_radiotap_iterator iterator; + struct ieee80211_radiotap_header *rthdr = + (struct ieee80211_radiotap_header *) skb->data; + struct ieee80211_hw_mode *mode = tx->local->hw.conf.mode; + int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len); + + /* + * default control situation for all injected packets + * FIXME: this does not suit all usage cases, expand to allow control + */ + + control->retry_limit = 1; /* no retry */ + control->key_idx = -1; /* no encryption key */ + control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS | + IEEE80211_TXCTL_USE_CTS_PROTECT); + control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT | + IEEE80211_TXCTL_NO_ACK; + control->antenna_sel_tx = 0; /* default to default antenna */ + + /* + * for every radiotap entry that is present + * (ieee80211_radiotap_iterator_next returns -ENOENT when no more + * entries present, or -EINVAL on error) + */ + + while (!ret) { + int i, target_rate; + + ret = ieee80211_radiotap_iterator_next(&iterator); + + if (ret) + continue; + + /* see if this argument is something we can use */ + switch (iterator.this_arg_index) { + /* + * You must take care when dereferencing iterator.this_arg + * for multibyte types... the pointer is not aligned. Use + * get_unaligned((type *)iterator.this_arg) to dereference + * iterator.this_arg for type "type" safely on all arches. + */ + case IEEE80211_RADIOTAP_RATE: + /* + * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps + * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps + */ + target_rate = (*iterator.this_arg) * 5; + for (i = 0; i < mode->num_rates; i++) { + struct ieee80211_rate *r = &mode->rates[i]; + + if (r->rate > target_rate) + continue; + + control->rate = r; + + if (r->flags & IEEE80211_RATE_PREAMBLE2) + control->tx_rate = r->val2; + else + control->tx_rate = r->val; + + /* end on exact match */ + if (r->rate == target_rate) + i = mode->num_rates; + } + break; + + case IEEE80211_RADIOTAP_ANTENNA: + /* + * radiotap uses 0 for 1st ant, mac80211 is 1 for + * 1st ant + */ + control->antenna_sel_tx = (*iterator.this_arg) + 1; + break; + + case IEEE80211_RADIOTAP_DBM_TX_POWER: + control->power_level = *iterator.this_arg; + break; + + case IEEE80211_RADIOTAP_FLAGS: + if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) { + /* + * this indicates that the skb we have been + * handed has the 32-bit FCS CRC at the end... + * we should react to that by snipping it off + * because it will be recomputed and added + * on transmission + */ + if (skb->len < (iterator.max_length + FCS_LEN)) + return TXRX_DROP; + + skb_trim(skb, skb->len - FCS_LEN); + } + break; + + default: + break; + } + } + + if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */ + return TXRX_DROP; + + /* + * remove the radiotap header + * iterator->max_length was sanity-checked against + * skb->len by iterator init + */ + skb_pull(skb, iterator.max_length); + + return TXRX_CONTINUE; +} + + +static ieee80211_txrx_result inline __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, struct sk_buff *skb, struct net_device *dev, @@ -1126,6 +1268,9 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_sub_if_data *sdata; + ieee80211_txrx_result res = TXRX_CONTINUE; + int hdrlen; memset(tx, 0, sizeof(*tx)); @@ -1135,7 +1280,32 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev); tx->sta = sta_info_get(local, hdr->addr1); tx->fc = le16_to_cpu(hdr->frame_control); + + /* + * set defaults for things that can be set by + * injected radiotap headers + */ control->power_level = local->hw.conf.power_level; + control->antenna_sel_tx = local->hw.conf.antenna_sel_tx; + if (local->sta_antenna_sel != STA_ANTENNA_SEL_AUTO && tx->sta) + control->antenna_sel_tx = tx->sta->antenna_sel_tx; + + /* process and remove the injection radiotap header */ + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + if (unlikely(sdata->type == IEEE80211_IF_TYPE_MNTR)) { + if (__ieee80211_parse_tx_radiotap(tx, skb, control) == + TXRX_DROP) { + return TXRX_DROP; + } + /* + * we removed the radiotap header after this point, + * we filled control with what we could use + * set to the actual ieee header now + */ + hdr = (struct ieee80211_hdr *) skb->data; + res = TXRX_QUEUED; /* indication it was monitor packet */ + } + tx->u.tx.control = control; tx->u.tx.unicast = !is_multicast_ether_addr(hdr->addr1); if (is_multicast_ether_addr(hdr->addr1)) @@ -1152,9 +1322,6 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK; tx->sta->clear_dst_mask = 0; } - control->antenna_sel_tx = local->hw.conf.antenna_sel_tx; - if (local->sta_antenna_sel != STA_ANTENNA_SEL_AUTO && tx->sta) - control->antenna_sel_tx = tx->sta->antenna_sel_tx; hdrlen = ieee80211_get_hdrlen(tx->fc); if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) { u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)]; @@ -1162,6 +1329,7 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, } control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT; + return res; } static int inline is_ieee80211_device(struct net_device *dev, @@ -1274,7 +1442,7 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb, struct sta_info *sta; ieee80211_tx_handler *handler; struct ieee80211_txrx_data tx; - ieee80211_txrx_result res = TXRX_DROP; + ieee80211_txrx_result res = TXRX_DROP, res_prepare; int ret, i; WARN_ON(__ieee80211_queue_pending(local, control->queue)); @@ -1284,15 +1452,26 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb, return 0; } - __ieee80211_tx_prepare(&tx, skb, dev, control); + res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control); + + if (res_prepare == TXRX_DROP) { + dev_kfree_skb(skb); + return 0; + } + sta = tx.sta; tx.u.tx.mgmt_interface = mgmt; tx.u.tx.mode = local->hw.conf.mode; - for (handler = local->tx_handlers; *handler != NULL; handler++) { - res = (*handler)(&tx); - if (res != TXRX_CONTINUE) - break; + if (res_prepare == TXRX_QUEUED) { /* if it was an injected packet */ + res = TXRX_CONTINUE; + } else { + for (handler = local->tx_handlers; *handler != NULL; + handler++) { + res = (*handler)(&tx); + if (res != TXRX_CONTINUE) + break; + } } skb = tx.skb; /* handlers are allowed to change skb */ @@ -1467,8 +1646,7 @@ static int ieee80211_master_start_xmit(struct sk_buff *skb, } osdata = IEEE80211_DEV_TO_SUB_IF(odev); - headroom = osdata->local->hw.extra_tx_headroom + - IEEE80211_ENCRYPT_HEADROOM; + headroom = osdata->local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM; if (skb_headroom(skb) < headroom) { if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) { dev_kfree_skb(skb); @@ -1494,6 +1672,56 @@ static int ieee80211_master_start_xmit(struct sk_buff *skb, } +int ieee80211_monitor_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_tx_packet_data *pkt_data; + struct ieee80211_radiotap_header *prthdr = + (struct ieee80211_radiotap_header *)skb->data; + u16 len; + + /* + * there must be a radiotap header at the + * start in this case + */ + if (unlikely(prthdr->it_version)) { + /* only version 0 is supported */ + dev_kfree_skb(skb); + return NETDEV_TX_OK; + } + + skb->dev = local->mdev; + + pkt_data = (struct ieee80211_tx_packet_data *)skb->cb; + memset(pkt_data, 0, sizeof(*pkt_data)); + pkt_data->ifindex = dev->ifindex; + pkt_data->mgmt_iface = 0; + pkt_data->do_not_encrypt = 1; + + /* above needed because we set skb device to master */ + + /* + * fix up the pointers accounting for the radiotap + * header still being in there. We are being given + * a precooked IEEE80211 header so no need for + * normal processing + */ + len = le16_to_cpu(get_unaligned(&prthdr->it_len)); + skb_set_mac_header(skb, len); + skb_set_network_header(skb, len + sizeof(struct ieee80211_hdr)); + skb_set_transport_header(skb, len + sizeof(struct ieee80211_hdr)); + + /* + * pass the radiotap header up to + * the next stage intact + */ + dev_queue_xmit(skb); + + return NETDEV_TX_OK; +} + + /** * ieee80211_subif_start_xmit - netif start_xmit function for Ethernet-type * subinterfaces (wlan#, WDS, and VLAN interfaces) @@ -1509,8 +1737,8 @@ static int ieee80211_master_start_xmit(struct sk_buff *skb, * encapsulated packet will then be passed to master interface, wlan#.11, for * transmission (through low-level driver). */ -static int ieee80211_subif_start_xmit(struct sk_buff *skb, - struct net_device *dev) +int ieee80211_subif_start_xmit(struct sk_buff *skb, + struct net_device *dev) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_tx_packet_data *pkt_data; @@ -1619,7 +1847,7 @@ static int ieee80211_subif_start_xmit(struct sk_buff *skb, * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and * alloc_skb() (net/core/skbuff.c) */ - head_need = hdrlen + encaps_len + local->hw.extra_tx_headroom; + head_need = hdrlen + encaps_len + local->tx_headroom; head_need -= skb_headroom(skb); /* We are going to modify skb data, so make a copy of it if happens to @@ -1658,7 +1886,7 @@ static int ieee80211_subif_start_xmit(struct sk_buff *skb, pkt_data = (struct ieee80211_tx_packet_data *)skb->cb; memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data)); - pkt_data->ifindex = sdata->dev->ifindex; + pkt_data->ifindex = dev->ifindex; pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT); pkt_data->do_not_encrypt = no_encrypt; @@ -1706,9 +1934,9 @@ ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev) return 0; } - if (skb_headroom(skb) < sdata->local->hw.extra_tx_headroom) { - if (pskb_expand_head(skb, - sdata->local->hw.extra_tx_headroom, 0, GFP_ATOMIC)) { + if (skb_headroom(skb) < sdata->local->tx_headroom) { + if (pskb_expand_head(skb, sdata->local->tx_headroom, + 0, GFP_ATOMIC)) { dev_kfree_skb(skb); return 0; } @@ -1847,12 +2075,12 @@ struct sk_buff * ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id, bh_len = ap->beacon_head_len; bt_len = ap->beacon_tail_len; - skb = dev_alloc_skb(local->hw.extra_tx_headroom + + skb = dev_alloc_skb(local->tx_headroom + bh_len + bt_len + 256 /* maximum TIM len */); if (!skb) return NULL; - skb_reserve(skb, local->hw.extra_tx_headroom); + skb_reserve(skb, local->tx_headroom); memcpy(skb_put(skb, bh_len), b_head, bh_len); ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data); @@ -2376,8 +2604,7 @@ static void ieee80211_start_hard_monitor(struct ieee80211_local *local) struct ieee80211_if_init_conf conf; if (local->open_count && local->open_count == local->monitors && - !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) && - local->ops->add_interface) { + !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) { conf.if_id = -1; conf.type = IEEE80211_IF_TYPE_MNTR; conf.mac_addr = NULL; @@ -2420,21 +2647,14 @@ static int ieee80211_open(struct net_device *dev) } ieee80211_start_soft_monitor(local); - if (local->ops->add_interface) { - conf.if_id = dev->ifindex; - conf.type = sdata->type; - conf.mac_addr = dev->dev_addr; - res = local->ops->add_interface(local_to_hw(local), &conf); - if (res) { - if (sdata->type == IEEE80211_IF_TYPE_MNTR) - ieee80211_start_hard_monitor(local); - return res; - } - } else { - if (sdata->type != IEEE80211_IF_TYPE_STA) - return -EOPNOTSUPP; - if (local->open_count > 0) - return -ENOBUFS; + conf.if_id = dev->ifindex; + conf.type = sdata->type; + conf.mac_addr = dev->dev_addr; + res = local->ops->add_interface(local_to_hw(local), &conf); + if (res) { + if (sdata->type == IEEE80211_IF_TYPE_MNTR) + ieee80211_start_hard_monitor(local); + return res; } if (local->open_count == 0) { @@ -2941,34 +3161,6 @@ int ieee80211_radar_status(struct ieee80211_hw *hw, int channel, } EXPORT_SYMBOL(ieee80211_radar_status); -int ieee80211_set_aid_for_sta(struct ieee80211_hw *hw, u8 *peer_address, - u16 aid) -{ - struct sk_buff *skb; - struct ieee80211_msg_set_aid_for_sta *msg; - struct ieee80211_local *local = hw_to_local(hw); - - /* unlikely because if this event only happens for APs, - * which require an open ap device. */ - if (unlikely(!local->apdev)) - return 0; - - skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) + - sizeof(struct ieee80211_msg_set_aid_for_sta)); - - if (!skb) - return -ENOMEM; - skb_reserve(skb, sizeof(struct ieee80211_frame_info)); - - msg = (struct ieee80211_msg_set_aid_for_sta *) - skb_put(skb, sizeof(struct ieee80211_msg_set_aid_for_sta)); - memcpy(msg->sta_address, peer_address, ETH_ALEN); - msg->aid = aid; - - ieee80211_rx_mgmt(local, skb, NULL, ieee80211_msg_set_aid_for_sta); - return 0; -} -EXPORT_SYMBOL(ieee80211_set_aid_for_sta); static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta) { @@ -4284,6 +4476,9 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb, struct ieee80211_local *local = hw_to_local(hw); u16 frag, type; u32 msg_type; + struct ieee80211_tx_status_rtap_hdr *rthdr; + struct ieee80211_sub_if_data *sdata; + int monitors; if (!status) { printk(KERN_ERR @@ -4395,27 +4590,100 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb, local->dot11FailedCount++; } - if (!(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS) - || unlikely(!local->apdev)) { + msg_type = (status->flags & IEEE80211_TX_STATUS_ACK) ? + ieee80211_msg_tx_callback_ack : ieee80211_msg_tx_callback_fail; + + /* this was a transmitted frame, but now we want to reuse it */ + skb_orphan(skb); + + if ((status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS) && + local->apdev) { + if (local->monitors) { + skb2 = skb_clone(skb, GFP_ATOMIC); + } else { + skb2 = skb; + skb = NULL; + } + + if (skb2) + /* Send frame to hostapd */ + ieee80211_rx_mgmt(local, skb2, NULL, msg_type); + + if (!skb) + return; + } + + if (!local->monitors) { dev_kfree_skb(skb); return; } - msg_type = (status->flags & IEEE80211_TX_STATUS_ACK) ? - ieee80211_msg_tx_callback_ack : ieee80211_msg_tx_callback_fail; + /* send frame to monitor interfaces now */ - /* skb was the original skb used for TX. Clone it and give the clone - * to netif_rx(). Free original skb. */ - skb2 = skb_copy(skb, GFP_ATOMIC); - if (!skb2) { + if (skb_headroom(skb) < sizeof(*rthdr)) { + printk(KERN_ERR "ieee80211_tx_status: headroom too small\n"); dev_kfree_skb(skb); return; } - dev_kfree_skb(skb); - skb = skb2; - /* Send frame to hostapd */ - ieee80211_rx_mgmt(local, skb, NULL, msg_type); + rthdr = (struct ieee80211_tx_status_rtap_hdr*) + skb_push(skb, sizeof(*rthdr)); + + memset(rthdr, 0, sizeof(*rthdr)); + rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); + rthdr->hdr.it_present = + cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) | + (1 << IEEE80211_RADIOTAP_DATA_RETRIES)); + + if (!(status->flags & IEEE80211_TX_STATUS_ACK) && + !is_multicast_ether_addr(hdr->addr1)) + rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL); + + if ((status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) && + (status->control.flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) + rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS); + else if (status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) + rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS); + + rthdr->data_retries = status->retry_count; + + read_lock(&local->sub_if_lock); + monitors = local->monitors; + list_for_each_entry(sdata, &local->sub_if_list, list) { + /* + * Using the monitors counter is possibly racy, but + * if the value is wrong we simply either clone the skb + * once too much or forget sending it to one monitor iface + * The latter case isn't nice but fixing the race is much + * more complicated. + */ + if (!monitors || !skb) + goto out; + + if (sdata->type == IEEE80211_IF_TYPE_MNTR) { + if (!netif_running(sdata->dev)) + continue; + monitors--; + if (monitors) + skb2 = skb_clone(skb, GFP_KERNEL); + else + skb2 = NULL; + skb->dev = sdata->dev; + /* XXX: is this sufficient for BPF? */ + skb_set_mac_header(skb, 0); + skb->ip_summed = CHECKSUM_UNNECESSARY; + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = htons(ETH_P_802_2); + memset(skb->cb, 0, sizeof(skb->cb)); + netif_rx(skb); + skb = skb2; + break; + } + } + out: + read_unlock(&local->sub_if_lock); + if (skb) + dev_kfree_skb(skb); } EXPORT_SYMBOL(ieee80211_tx_status); @@ -4619,6 +4887,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, ((sizeof(struct ieee80211_local) + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); + BUG_ON(!ops->tx); + BUG_ON(!ops->config); + BUG_ON(!ops->add_interface); local->ops = ops; /* for now, mdev needs sub_if_data :/ */ @@ -4647,8 +4918,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->short_retry_limit = 7; local->long_retry_limit = 4; local->hw.conf.radio_enabled = 1; - local->rate_ctrl_num_up = RATE_CONTROL_NUM_UP; - local->rate_ctrl_num_down = RATE_CONTROL_NUM_DOWN; local->enabled_modes = (unsigned int) -1; @@ -4712,6 +4981,14 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) goto fail_workqueue; } + /* + * The hardware needs headroom for sending the frame, + * and we need some headroom for passing the frame to monitor + * interfaces, but never both at the same time. + */ + local->tx_headroom = max(local->hw.extra_tx_headroom, + sizeof(struct ieee80211_tx_status_rtap_hdr)); + debugfs_hw_add(local); local->hw.conf.beacon_int = 1000; diff --git a/net/mac80211/ieee80211_common.h b/net/mac80211/ieee80211_common.h index b9a73e7f5f75..77c6afb7f6a8 100644 --- a/net/mac80211/ieee80211_common.h +++ b/net/mac80211/ieee80211_common.h @@ -47,21 +47,16 @@ enum ieee80211_msg_type { ieee80211_msg_normal = 0, ieee80211_msg_tx_callback_ack = 1, ieee80211_msg_tx_callback_fail = 2, - ieee80211_msg_passive_scan = 3, + /* hole at 3, was ieee80211_msg_passive_scan but unused */ ieee80211_msg_wep_frame_unknown_key = 4, ieee80211_msg_michael_mic_failure = 5, /* hole at 6, was monitor but never sent to userspace */ ieee80211_msg_sta_not_assoc = 7, - ieee80211_msg_set_aid_for_sta = 8 /* used by Intersil MVC driver */, + /* 8 was ieee80211_msg_set_aid_for_sta */ ieee80211_msg_key_threshold_notification = 9, ieee80211_msg_radar = 11, }; -struct ieee80211_msg_set_aid_for_sta { - char sta_address[ETH_ALEN]; - u16 aid; -}; - struct ieee80211_msg_key_notification { int tx_rx_count; char ifname[IFNAMSIZ]; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index af4d14d0b969..055a2a912185 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -99,6 +99,12 @@ struct ieee80211_sta_bss { int probe_resp; unsigned long last_update; + /* during assocation, we save an ERP value from a probe response so + * that we can feed ERP info to the driver when handling the + * association completes. these fields probably won't be up-to-date + * otherwise, you probably don't want to use them. */ + int has_erp_value; + u8 erp_value; }; @@ -235,7 +241,6 @@ struct ieee80211_if_sta { unsigned int authenticated:1; unsigned int associated:1; unsigned int probereq_poll:1; - unsigned int use_protection:1; unsigned int create_ibss:1; unsigned int mixed_cell:1; unsigned int wmm_enabled:1; @@ -278,6 +283,7 @@ struct ieee80211_sub_if_data { int mc_count; unsigned int allmulti:1; unsigned int promisc:1; + unsigned int use_protection:1; /* CTS protect ERP frames */ struct net_device_stats stats; int drop_unencrypted; @@ -392,6 +398,7 @@ struct ieee80211_local { int monitors; struct iw_statistics wstats; u8 wstats_flags; + int tx_headroom; /* required headroom for hardware/radiotap */ enum { IEEE80211_DEV_UNINITIALIZED = 0, @@ -437,7 +444,6 @@ struct ieee80211_local { int *basic_rates[NUM_IEEE80211_MODES]; int rts_threshold; - int cts_protect_erp_frames; int fragmentation_threshold; int short_retry_limit; /* dot11ShortRetryLimit */ int long_retry_limit; /* dot11LongRetryLimit */ @@ -513,8 +519,6 @@ struct ieee80211_local { STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2 } sta_antenna_sel; - int rate_ctrl_num_up, rate_ctrl_num_down; - #ifdef CONFIG_MAC80211_DEBUG_COUNTERS /* TX/RX handler statistics */ unsigned int tx_handlers_drop; @@ -719,6 +723,8 @@ void ieee80211_prepare_rates(struct ieee80211_local *local, struct ieee80211_hw_mode *mode); void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx); int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr); +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); void ieee80211_if_setup(struct net_device *dev); void ieee80211_if_mgmt_setup(struct net_device *dev); int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, diff --git a/net/mac80211/ieee80211_iface.c b/net/mac80211/ieee80211_iface.c index cf0f32e8c2a2..8532a5ccdd1e 100644 --- a/net/mac80211/ieee80211_iface.c +++ b/net/mac80211/ieee80211_iface.c @@ -157,6 +157,8 @@ void ieee80211_if_set_type(struct net_device *dev, int type) struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); int oldtype = sdata->type; + dev->hard_start_xmit = ieee80211_subif_start_xmit; + sdata->type = type; switch (type) { case IEEE80211_IF_TYPE_WDS: @@ -196,6 +198,7 @@ void ieee80211_if_set_type(struct net_device *dev, int type) } case IEEE80211_IF_TYPE_MNTR: dev->type = ARPHRD_IEEE80211_RADIOTAP; + dev->hard_start_xmit = ieee80211_monitor_start_xmit; break; default: printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x", diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c index 352f03bd8a3a..5918dd079e12 100644 --- a/net/mac80211/ieee80211_ioctl.c +++ b/net/mac80211/ieee80211_ioctl.c @@ -345,6 +345,8 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev, { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct iw_range *range = (struct iw_range *) extra; + struct ieee80211_hw_mode *mode = NULL; + int c = 0; data->length = sizeof(struct iw_range); memset(range, 0, sizeof(struct iw_range)); @@ -378,6 +380,29 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev, range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; + list_for_each_entry(mode, &local->modes_list, list) { + int i = 0; + + if (!(local->enabled_modes & (1 << mode->mode)) || + (local->hw_modes & local->enabled_modes & + (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B)) + continue; + + while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) { + struct ieee80211_channel *chan = &mode->channels[i]; + + if (chan->flag & IEEE80211_CHAN_W_SCAN) { + range->freq[c].i = chan->chan; + range->freq[c].m = chan->freq * 100000; + range->freq[c].e = 1; + c++; + } + i++; + } + } + range->num_channels = c; + range->num_frequency = c; + IW_EVENT_CAPA_SET_KERNEL(range->event_capa); IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY); IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); @@ -838,6 +863,67 @@ static int ieee80211_ioctl_giwscan(struct net_device *dev, } +static int ieee80211_ioctl_siwrate(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rate, char *extra) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_hw_mode *mode; + int i; + u32 target_rate = rate->value / 100000; + struct ieee80211_sub_if_data *sdata; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + if (!sdata->bss) + return -ENODEV; + mode = local->oper_hw_mode; + /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates + * target_rate = X, rate->fixed = 1 means only rate X + * target_rate = X, rate->fixed = 0 means all rates <= X */ + sdata->bss->max_ratectrl_rateidx = -1; + sdata->bss->force_unicast_rateidx = -1; + if (rate->value < 0) + return 0; + for (i=0; i< mode->num_rates; i++) { + struct ieee80211_rate *rates = &mode->rates[i]; + int this_rate = rates->rate; + + if (mode->mode == MODE_ATHEROS_TURBO || + mode->mode == MODE_ATHEROS_TURBOG) + this_rate *= 2; + if (target_rate == this_rate) { + sdata->bss->max_ratectrl_rateidx = i; + if (rate->fixed) + sdata->bss->force_unicast_rateidx = i; + break; + } + } + return 0; +} + +static int ieee80211_ioctl_giwrate(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rate, char *extra) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct sta_info *sta; + struct ieee80211_sub_if_data *sdata; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + if (sdata->type == IEEE80211_IF_TYPE_STA) + sta = sta_info_get(local, sdata->u.sta.bssid); + else + return -EOPNOTSUPP; + if (!sta) + return -ENODEV; + if (sta->txrate < local->oper_hw_mode->num_rates) + rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000; + else + rate->value = 0; + sta_info_put(sta); + return 0; +} + static int ieee80211_ioctl_siwrts(struct net_device *dev, struct iw_request_info *info, struct iw_param *rts, char *extra) @@ -970,118 +1056,6 @@ static int ieee80211_ioctl_giwretry(struct net_device *dev, return 0; } -static int ieee80211_ioctl_clear_keys(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_key_conf key; - int i; - u8 addr[ETH_ALEN]; - struct ieee80211_key_conf *keyconf; - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - - memset(addr, 0xff, ETH_ALEN); - read_lock(&local->sub_if_lock); - list_for_each_entry(sdata, &local->sub_if_list, list) { - for (i = 0; i < NUM_DEFAULT_KEYS; i++) { - keyconf = NULL; - if (sdata->keys[i] && - !sdata->keys[i]->force_sw_encrypt && - local->ops->set_key && - (keyconf = ieee80211_key_data2conf(local, - sdata->keys[i]))) - local->ops->set_key(local_to_hw(local), - DISABLE_KEY, addr, - keyconf, 0); - kfree(keyconf); - ieee80211_key_free(sdata->keys[i]); - sdata->keys[i] = NULL; - } - sdata->default_key = NULL; - } - read_unlock(&local->sub_if_lock); - - spin_lock_bh(&local->sta_lock); - list_for_each_entry(sta, &local->sta_list, list) { - keyconf = NULL; - if (sta->key && !sta->key->force_sw_encrypt && - local->ops->set_key && - (keyconf = ieee80211_key_data2conf(local, sta->key))) - local->ops->set_key(local_to_hw(local), DISABLE_KEY, - sta->addr, keyconf, sta->aid); - kfree(keyconf); - ieee80211_key_free(sta->key); - sta->key = NULL; - } - spin_unlock_bh(&local->sta_lock); - - memset(&key, 0, sizeof(key)); - if (local->ops->set_key && - local->ops->set_key(local_to_hw(local), REMOVE_ALL_KEYS, - NULL, &key, 0)) - printk(KERN_DEBUG "%s: failed to remove hwaccel keys\n", - dev->name); - - return 0; -} - - -static int -ieee80211_ioctl_force_unicast_rate(struct net_device *dev, - struct ieee80211_sub_if_data *sdata, - int rate) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw_mode *mode; - int i; - - if (sdata->type != IEEE80211_IF_TYPE_AP) - return -ENOENT; - - if (rate == 0) { - sdata->u.ap.force_unicast_rateidx = -1; - return 0; - } - - mode = local->oper_hw_mode; - for (i = 0; i < mode->num_rates; i++) { - if (mode->rates[i].rate == rate) { - sdata->u.ap.force_unicast_rateidx = i; - return 0; - } - } - return -EINVAL; -} - - -static int -ieee80211_ioctl_max_ratectrl_rate(struct net_device *dev, - struct ieee80211_sub_if_data *sdata, - int rate) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw_mode *mode; - int i; - - if (sdata->type != IEEE80211_IF_TYPE_AP) - return -ENOENT; - - if (rate == 0) { - sdata->u.ap.max_ratectrl_rateidx = -1; - return 0; - } - - mode = local->oper_hw_mode; - for (i = 0; i < mode->num_rates; i++) { - if (mode->rates[i].rate == rate) { - sdata->u.ap.max_ratectrl_rateidx = i; - return 0; - } - } - return -EINVAL; -} - - static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local, struct ieee80211_key *key) { @@ -1205,24 +1179,11 @@ static int ieee80211_ioctl_prism2_param(struct net_device *dev, sdata->ieee802_1x = value; break; - case PRISM2_PARAM_ANTSEL_TX: - local->hw.conf.antenna_sel_tx = value; - if (ieee80211_hw_config(local)) - ret = -EINVAL; - break; - - case PRISM2_PARAM_ANTSEL_RX: - local->hw.conf.antenna_sel_rx = value; - if (ieee80211_hw_config(local)) - ret = -EINVAL; - break; - case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES: - local->cts_protect_erp_frames = value; - break; - - case PRISM2_PARAM_DROP_UNENCRYPTED: - sdata->drop_unencrypted = value; + if (sdata->type != IEEE80211_IF_TYPE_AP) + ret = -ENOENT; + else + sdata->use_protection = value; break; case PRISM2_PARAM_PREAMBLE: @@ -1251,10 +1212,6 @@ static int ieee80211_ioctl_prism2_param(struct net_device *dev, local->next_mode = value; break; - case PRISM2_PARAM_CLEAR_KEYS: - ret = ieee80211_ioctl_clear_keys(dev); - break; - case PRISM2_PARAM_RADIO_ENABLED: ret = ieee80211_ioctl_set_radio_enabled(dev, value); break; @@ -1269,22 +1226,6 @@ static int ieee80211_ioctl_prism2_param(struct net_device *dev, local->sta_antenna_sel = value; break; - case PRISM2_PARAM_FORCE_UNICAST_RATE: - ret = ieee80211_ioctl_force_unicast_rate(dev, sdata, value); - break; - - case PRISM2_PARAM_MAX_RATECTRL_RATE: - ret = ieee80211_ioctl_max_ratectrl_rate(dev, sdata, value); - break; - - case PRISM2_PARAM_RATE_CTRL_NUM_UP: - local->rate_ctrl_num_up = value; - break; - - case PRISM2_PARAM_RATE_CTRL_NUM_DOWN: - local->rate_ctrl_num_down = value; - break; - case PRISM2_PARAM_TX_POWER_REDUCTION: if (value < 0) ret = -EINVAL; @@ -1364,20 +1305,8 @@ static int ieee80211_ioctl_get_prism2_param(struct net_device *dev, *param = sdata->ieee802_1x; break; - case PRISM2_PARAM_ANTSEL_TX: - *param = local->hw.conf.antenna_sel_tx; - break; - - case PRISM2_PARAM_ANTSEL_RX: - *param = local->hw.conf.antenna_sel_rx; - break; - case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES: - *param = local->cts_protect_erp_frames; - break; - - case PRISM2_PARAM_DROP_UNENCRYPTED: - *param = sdata->drop_unencrypted; + *param = sdata->use_protection; break; case PRISM2_PARAM_PREAMBLE: @@ -1403,14 +1332,6 @@ static int ieee80211_ioctl_get_prism2_param(struct net_device *dev, *param = local->sta_antenna_sel; break; - case PRISM2_PARAM_RATE_CTRL_NUM_UP: - *param = local->rate_ctrl_num_up; - break; - - case PRISM2_PARAM_RATE_CTRL_NUM_DOWN: - *param = local->rate_ctrl_num_down; - break; - case PRISM2_PARAM_TX_POWER_REDUCTION: *param = local->hw.conf.tx_power_reduction; break; @@ -1778,8 +1699,8 @@ static const iw_handler ieee80211_handler[] = (iw_handler) NULL, /* SIOCGIWNICKN */ (iw_handler) NULL, /* -- hole -- */ (iw_handler) NULL, /* -- hole -- */ - (iw_handler) NULL, /* SIOCSIWRATE */ - (iw_handler) NULL, /* SIOCGIWRATE */ + (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */ + (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */ (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */ (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */ (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */ diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c index 91b545c144c1..ba2bf8f0a347 100644 --- a/net/mac80211/ieee80211_sta.c +++ b/net/mac80211/ieee80211_sta.c @@ -76,33 +76,36 @@ static int ieee80211_sta_config_auth(struct net_device *dev, /* Parsed Information Elements */ struct ieee802_11_elems { + /* pointers to IEs */ u8 *ssid; - u8 ssid_len; u8 *supp_rates; - u8 supp_rates_len; u8 *fh_params; - u8 fh_params_len; u8 *ds_params; - u8 ds_params_len; u8 *cf_params; - u8 cf_params_len; u8 *tim; - u8 tim_len; u8 *ibss_params; - u8 ibss_params_len; u8 *challenge; - u8 challenge_len; u8 *wpa; - u8 wpa_len; u8 *rsn; - u8 rsn_len; u8 *erp_info; - u8 erp_info_len; u8 *ext_supp_rates; - u8 ext_supp_rates_len; u8 *wmm_info; - u8 wmm_info_len; u8 *wmm_param; + + /* length of them, respectively */ + u8 ssid_len; + u8 supp_rates_len; + u8 fh_params_len; + u8 ds_params_len; + u8 cf_params_len; + u8 tim_len; + u8 ibss_params_len; + u8 challenge_len; + u8 wpa_len; + u8 rsn_len; + u8 erp_info_len; + u8 ext_supp_rates_len; + u8 wmm_info_len; u8 wmm_param_len; }; @@ -311,6 +314,25 @@ static void ieee80211_sta_wmm_params(struct net_device *dev, } +static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + int use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0; + + if (use_protection != sdata->use_protection) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: CTS protection %s (BSSID=" + MAC_FMT ")\n", + dev->name, + use_protection ? "enabled" : "disabled", + MAC_ARG(ifsta->bssid)); + } + sdata->use_protection = use_protection; + } +} + + static void ieee80211_sta_send_associnfo(struct net_device *dev, struct ieee80211_if_sta *ifsta) { @@ -366,6 +388,7 @@ static void ieee80211_set_associated(struct net_device *dev, struct ieee80211_if_sta *ifsta, int assoc) { union iwreq_data wrqu; + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (ifsta->associated == assoc) return; @@ -374,9 +397,18 @@ static void ieee80211_set_associated(struct net_device *dev, if (assoc) { struct ieee80211_sub_if_data *sdata; + struct ieee80211_sta_bss *bss; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->type != IEEE80211_IF_TYPE_STA) return; + + bss = ieee80211_rx_bss_get(dev, ifsta->bssid); + if (bss) { + if (bss->has_erp_value) + ieee80211_handle_erp_ie(dev, bss->erp_value); + ieee80211_rx_bss_put(dev, bss); + } + netif_carrier_on(dev); ifsta->prev_bssid_set = 1; memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN); @@ -384,6 +416,7 @@ static void ieee80211_set_associated(struct net_device *dev, ieee80211_sta_send_associnfo(dev, ifsta); } else { netif_carrier_off(dev); + sdata->use_protection = 0; memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); } wrqu.ap_addr.sa_family = ARPHRD_ETHER; @@ -1174,6 +1207,18 @@ static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev, return; } + /* it probably doesn't, but if the frame includes an ERP value then + * update our stored copy */ + if (elems.erp_info && elems.erp_info_len >= 1) { + struct ieee80211_sta_bss *bss + = ieee80211_rx_bss_get(dev, ifsta->bssid); + if (bss) { + bss->erp_value = elems.erp_info[0]; + bss->has_erp_value = 1; + ieee80211_rx_bss_put(dev, bss); + } + } + printk(KERN_DEBUG "%s: associated\n", dev->name); ifsta->aid = aid; ifsta->ap_capab = capab_info; @@ -1496,6 +1541,12 @@ static void ieee80211_rx_bss_info(struct net_device *dev, return; } + /* 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.ssid && elems.ssid_len <= IEEE80211_MAX_SSID_LEN) { @@ -1611,10 +1662,8 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev, size_t len, struct ieee80211_rx_status *rx_status) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_sub_if_data *sdata; struct ieee80211_if_sta *ifsta; - int use_protection; size_t baselen; struct ieee802_11_elems elems; @@ -1638,23 +1687,8 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev, &elems) == ParseFailed) return; - use_protection = 0; - if (elems.erp_info && elems.erp_info_len >= 1) { - use_protection = - (elems.erp_info[0] & ERP_INFO_USE_PROTECTION) != 0; - } - - if (use_protection != !!ifsta->use_protection) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: CTS protection %s (BSSID=" - MAC_FMT ")\n", - dev->name, - use_protection ? "enabled" : "disabled", - MAC_ARG(ifsta->bssid)); - } - ifsta->use_protection = use_protection ? 1 : 0; - local->cts_protect_erp_frames = use_protection; - } + if (elems.erp_info && elems.erp_info_len >= 1) + ieee80211_handle_erp_ie(dev, elems.erp_info[0]); if (elems.wmm_param && ifsta->wmm_enabled) { ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param, diff --git a/net/mac80211/rc80211_simple.c b/net/mac80211/rc80211_simple.c index 2048cfd1ca70..f6780d63b342 100644 --- a/net/mac80211/rc80211_simple.c +++ b/net/mac80211/rc80211_simple.c @@ -187,9 +187,13 @@ static void rate_control_simple_tx_status(void *priv, struct net_device *dev, } #endif - if (per_failed > local->rate_ctrl_num_down) { + /* + * XXX: Make these configurable once we have an + * interface to the rate control algorithms + */ + if (per_failed > RATE_CONTROL_NUM_DOWN) { rate_control_rate_dec(local, sta); - } else if (per_failed < local->rate_ctrl_num_up) { + } else if (per_failed < RATE_CONTROL_NUM_UP) { rate_control_rate_inc(local, sta); } srctrl->tx_avg_rate_sum += status->control.rate->rate; @@ -283,14 +287,16 @@ static void rate_control_simple_rate_init(void *priv, void *priv_sta, int i; sta->txrate = 0; mode = local->oper_hw_mode; - /* 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 - * after assoc.. */ + /* TODO: This routine should consider using RSSI from previous packets + * as we need to have IEEE 802.1X auth succeed immediately after assoc.. + * Until that method is implemented, we will use the lowest supported rate + * as a workaround, */ for (i = 0; i < mode->num_rates; i++) { if ((sta->supp_rates & BIT(i)) && - (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED)) + (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED)) { sta->txrate = i; + break; + } } } |