diff options
author | John W. Linville <linville@tuxdriver.com> | 2012-03-16 21:45:25 +0400 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2012-03-16 21:45:25 +0400 |
commit | 01a282980937f9ca55a3cb06b9c6ff1cc49ea396 (patch) | |
tree | 07a043edc861e245a7a9764751af0898a1f1199a /net | |
parent | d5ddb4a59ed43b4c569b4efa8b508d50ef140cc6 (diff) | |
parent | 377526578f2c343ea281a918b18ece1fca65005c (diff) | |
download | linux-01a282980937f9ca55a3cb06b9c6ff1cc49ea396.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
drivers/net/wireless/ath/ath9k/hw.c
Diffstat (limited to 'net')
-rw-r--r-- | net/mac80211/chan.c | 27 | ||||
-rw-r--r-- | net/mac80211/debugfs.c | 81 | ||||
-rw-r--r-- | net/mac80211/debugfs_netdev.c | 71 | ||||
-rw-r--r-- | net/mac80211/driver-ops.h | 35 | ||||
-rw-r--r-- | net/mac80211/driver-trace.h | 45 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 34 | ||||
-rw-r--r-- | net/mac80211/main.c | 2 | ||||
-rw-r--r-- | net/mac80211/mlme.c | 382 | ||||
-rw-r--r-- | net/mac80211/rc80211_minstrel_ht.c | 16 | ||||
-rw-r--r-- | net/mac80211/rx.c | 21 | ||||
-rw-r--r-- | net/mac80211/tx.c | 10 | ||||
-rw-r--r-- | net/mac80211/wep.c | 21 | ||||
-rw-r--r-- | net/mac80211/wep.h | 1 | ||||
-rw-r--r-- | net/mac80211/wpa.c | 22 | ||||
-rw-r--r-- | net/wireless/nl80211.c | 8 | ||||
-rw-r--r-- | net/wireless/scan.c | 7 | ||||
-rw-r--r-- | net/wireless/wext-sme.c | 3 |
17 files changed, 355 insertions, 431 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index d1f7abddb182..e00ce8c3e28e 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -3,6 +3,7 @@ */ #include <linux/nl80211.h> +#include <net/cfg80211.h> #include "ieee80211_i.h" static enum ieee80211_chan_mode @@ -134,3 +135,29 @@ bool ieee80211_set_channel_type(struct ieee80211_local *local, return result; } + +/* + * ieee80211_get_tx_channel_type returns the channel type we should + * use for packet transmission, given the channel capability and + * whatever regulatory flags we have been given. + */ +enum nl80211_channel_type ieee80211_get_tx_channel_type( + struct ieee80211_local *local, + enum nl80211_channel_type channel_type) +{ + switch (channel_type) { + case NL80211_CHAN_HT40PLUS: + if (local->hw.conf.channel->flags & + IEEE80211_CHAN_NO_HT40PLUS) + return NL80211_CHAN_HT20; + break; + case NL80211_CHAN_HT40MINUS: + if (local->hw.conf.channel->flags & + IEEE80211_CHAN_NO_HT40MINUS) + return NL80211_CHAN_HT20; + break; + default: + break; + } + return channel_type; +} diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index 483e96ed95c1..cc5b7a6e7e0b 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -97,85 +97,6 @@ static const struct file_operations reset_ops = { .llseek = noop_llseek, }; -static ssize_t uapsd_queues_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ieee80211_local *local = file->private_data; - return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n", - local->uapsd_queues); -} - -static ssize_t uapsd_queues_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ieee80211_local *local = file->private_data; - u8 val; - int ret; - - ret = kstrtou8_from_user(user_buf, count, 0, &val); - if (ret) - return ret; - - if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) - return -ERANGE; - - local->uapsd_queues = val; - - return count; -} - -static const struct file_operations uapsd_queues_ops = { - .read = uapsd_queues_read, - .write = uapsd_queues_write, - .open = mac80211_open_file_generic, - .llseek = default_llseek, -}; - -static ssize_t uapsd_max_sp_len_read(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ieee80211_local *local = file->private_data; - - return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n", - local->uapsd_max_sp_len); -} - -static ssize_t uapsd_max_sp_len_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ieee80211_local *local = file->private_data; - unsigned long val; - char buf[10]; - size_t len; - int ret; - - len = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, len)) - return -EFAULT; - buf[len] = '\0'; - - ret = kstrtoul(buf, 0, &val); - - if (ret) - return -EINVAL; - - if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) - return -ERANGE; - - local->uapsd_max_sp_len = val; - - return count; -} - -static const struct file_operations uapsd_max_sp_len_ops = { - .read = uapsd_max_sp_len_read, - .write = uapsd_max_sp_len_write, - .open = mac80211_open_file_generic, - .llseek = default_llseek, -}; - static ssize_t channel_type_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -362,8 +283,6 @@ void debugfs_hw_add(struct ieee80211_local *local) DEBUGFS_ADD(wep_iv); DEBUGFS_ADD(queues); DEBUGFS_ADD_MODE(reset, 0200); - DEBUGFS_ADD(uapsd_queues); - DEBUGFS_ADD(uapsd_max_sp_len); DEBUGFS_ADD(channel_type); DEBUGFS_ADD(hwflags); DEBUGFS_ADD(user_power); diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index f6de8a65f402..a32eeda04aa3 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -49,16 +49,15 @@ static ssize_t ieee80211_if_write( size_t count, loff_t *ppos, ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int)) { - u8 *buf; + char buf[64]; ssize_t ret; - buf = kmalloc(count, GFP_KERNEL); - if (!buf) - return -ENOMEM; + if (count >= sizeof(buf)) + return -E2BIG; - ret = -EFAULT; if (copy_from_user(buf, userbuf, count)) - goto freebuf; + return -EFAULT; + buf[count] = '\0'; ret = -ENODEV; rtnl_lock(); @@ -66,8 +65,6 @@ static ssize_t ieee80211_if_write( ret = (*write)(sdata, buf, count); rtnl_unlock(); -freebuf: - kfree(buf); return ret; } @@ -340,6 +337,62 @@ static ssize_t ieee80211_if_parse_tkip_mic_test( __IEEE80211_IF_FILE_W(tkip_mic_test); +static ssize_t ieee80211_if_fmt_uapsd_queues( + const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) +{ + const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues); +} + +static ssize_t ieee80211_if_parse_uapsd_queues( + struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u8 val; + int ret; + + ret = kstrtou8(buf, 0, &val); + if (ret) + return ret; + + if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) + return -ERANGE; + + ifmgd->uapsd_queues = val; + + return buflen; +} +__IEEE80211_IF_FILE_W(uapsd_queues); + +static ssize_t ieee80211_if_fmt_uapsd_max_sp_len( + const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) +{ + const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len); +} + +static ssize_t ieee80211_if_parse_uapsd_max_sp_len( + struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + unsigned long val; + int ret; + + ret = kstrtoul(buf, 0, &val); + if (ret) + return -EINVAL; + + if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) + return -ERANGE; + + ifmgd->uapsd_max_sp_len = val; + + return buflen; +} +__IEEE80211_IF_FILE_W(uapsd_max_sp_len); + /* AP attributes */ IEEE80211_IF_FILE(num_sta_authorized, u.ap.num_sta_authorized, ATOMIC); IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC); @@ -472,6 +525,8 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata) DEBUGFS_ADD(ave_beacon); DEBUGFS_ADD_MODE(smps, 0600); DEBUGFS_ADD_MODE(tkip_mic_test, 0200); + DEBUGFS_ADD_MODE(uapsd_queues, 0600); + DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600); } static void add_ap_files(struct ieee80211_sub_if_data *sdata) diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 70dfb6415c20..af4691fed645 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -168,41 +168,6 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local, trace_drv_return_void(local); } -static inline int drv_tx_sync(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - const u8 *bssid, - enum ieee80211_tx_sync_type type) -{ - int ret = 0; - - might_sleep(); - - check_sdata_in_driver(sdata); - - trace_drv_tx_sync(local, sdata, bssid, type); - if (local->ops->tx_sync) - ret = local->ops->tx_sync(&local->hw, &sdata->vif, - bssid, type); - trace_drv_return_int(local, ret); - return ret; -} - -static inline void drv_finish_tx_sync(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - const u8 *bssid, - enum ieee80211_tx_sync_type type) -{ - might_sleep(); - - check_sdata_in_driver(sdata); - - trace_drv_finish_tx_sync(local, sdata, bssid, type); - if (local->ops->finish_tx_sync) - local->ops->finish_tx_sync(&local->hw, &sdata->vif, - bssid, type); - trace_drv_return_void(local); -} - static inline u64 drv_prepare_multicast(struct ieee80211_local *local, struct netdev_hw_addr_list *mc_list) { diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h index 384e2f08c187..21d6f5290a1c 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/driver-trace.h @@ -296,7 +296,7 @@ TRACE_EVENT(drv_bss_info_changed, __entry->dtimper = info->dtim_period; __entry->bcnint = info->beacon_int; __entry->assoc_cap = info->assoc_capability; - __entry->timestamp = info->timestamp; + __entry->timestamp = info->last_tsf; __entry->basic_rates = info->basic_rates; __entry->enable_beacon = info->enable_beacon; __entry->ht_operation_mode = info->ht_operation_mode; @@ -308,49 +308,6 @@ TRACE_EVENT(drv_bss_info_changed, ) ); -DECLARE_EVENT_CLASS(tx_sync_evt, - TP_PROTO(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - const u8 *bssid, - enum ieee80211_tx_sync_type type), - TP_ARGS(local, sdata, bssid, type), - - TP_STRUCT__entry( - LOCAL_ENTRY - VIF_ENTRY - __array(char, bssid, ETH_ALEN) - __field(u32, sync_type) - ), - - TP_fast_assign( - LOCAL_ASSIGN; - VIF_ASSIGN; - memcpy(__entry->bssid, bssid, ETH_ALEN); - __entry->sync_type = type; - ), - - TP_printk( - LOCAL_PR_FMT VIF_PR_FMT " bssid:%pM type:%d", - LOCAL_PR_ARG, VIF_PR_ARG, __entry->bssid, __entry->sync_type - ) -); - -DEFINE_EVENT(tx_sync_evt, drv_tx_sync, - TP_PROTO(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - const u8 *bssid, - enum ieee80211_tx_sync_type type), - TP_ARGS(local, sdata, bssid, type) -); - -DEFINE_EVENT(tx_sync_evt, drv_finish_tx_sync, - TP_PROTO(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - const u8 *bssid, - enum ieee80211_tx_sync_type type), - TP_ARGS(local, sdata, bssid, type) -); - TRACE_EVENT(drv_prepare_multicast, TP_PROTO(struct ieee80211_local *local, int mc_count), diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 796b13bfc953..d9798a307f20 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -388,7 +388,6 @@ struct ieee80211_mgd_auth_data { u8 key[WLAN_KEY_LEN_WEP104]; u8 key_len, key_idx; - bool synced; bool done; size_t ie_len; @@ -408,7 +407,7 @@ struct ieee80211_mgd_assoc_data { u8 ssid[IEEE80211_MAX_SSID_LEN]; u8 ssid_len; u8 supp_rates_len; - bool wmm_used, uapsd_used; + bool wmm, uapsd; bool have_beacon; bool sent_assoc; bool synced; @@ -460,6 +459,20 @@ struct ieee80211_if_managed { IEEE80211_MFP_REQUIRED } mfp; /* management frame protection */ + /* + * Bitmask of enabled u-apsd queues, + * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association + * to take effect. + */ + unsigned int uapsd_queues; + + /* + * Maximum number of buffered frames AP can deliver during a + * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. + * Needs a new association to take effect. + */ + unsigned int uapsd_max_sp_len; + int wmm_last_param_set; u8 use_4addr; @@ -1018,20 +1031,6 @@ struct ieee80211_local { */ unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ - /* - * Bitmask of enabled u-apsd queues, - * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association - * to take effect. - */ - unsigned int uapsd_queues; - - /* - * Maximum number of buffered frames AP can deliver during a - * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. - * Needs a new association to take effect. - */ - unsigned int uapsd_max_sp_len; - bool pspolling; bool offchannel_ps_enabled; /* @@ -1503,6 +1502,9 @@ bool ieee80211_set_channel_type(struct ieee80211_local *local, enum nl80211_channel_type chantype); enum nl80211_channel_type ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info); +enum nl80211_channel_type ieee80211_get_tx_channel_type( + struct ieee80211_local *local, + enum nl80211_channel_type channel_type); #ifdef CONFIG_MAC80211_NOINLINE #define debug_noinline noinline diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 36fa8051296c..b581a24fa15c 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -595,8 +595,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; local->user_power_level = -1; - local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; - local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; INIT_LIST_HEAD(&local->interfaces); diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index c08924aeac00..576fb25456dd 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -189,40 +189,35 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, u16 ht_opmode; bool enable_ht = true; enum nl80211_channel_type prev_chantype; - enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; + enum nl80211_channel_type rx_channel_type = NL80211_CHAN_NO_HT; + enum nl80211_channel_type tx_channel_type; sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - prev_chantype = sdata->vif.bss_conf.channel_type; - /* HT is not supported */ - if (!sband->ht_cap.ht_supported) - enable_ht = false; - if (enable_ht) { - hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan, - sband->band); - /* check that channel matches the right operating channel */ - if (local->hw.conf.channel->center_freq != hti_cfreq) { - /* Some APs mess this up, evidently. - * Netgear WNDR3700 sometimes reports 4 higher than - * the actual channel, for instance. - */ - printk(KERN_DEBUG - "%s: Wrong control channel in association" - " response: configured center-freq: %d" - " hti-cfreq: %d hti->control_chan: %d" - " band: %d. Disabling HT.\n", - sdata->name, - local->hw.conf.channel->center_freq, - hti_cfreq, hti->control_chan, - sband->band); - enable_ht = false; - } + hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan, + sband->band); + /* check that channel matches the right operating channel */ + if (local->hw.conf.channel->center_freq != hti_cfreq) { + /* Some APs mess this up, evidently. + * Netgear WNDR3700 sometimes reports 4 higher than + * the actual channel, for instance. + */ + printk(KERN_DEBUG + "%s: Wrong control channel in association" + " response: configured center-freq: %d" + " hti-cfreq: %d hti->control_chan: %d" + " band: %d. Disabling HT.\n", + sdata->name, + local->hw.conf.channel->center_freq, + hti_cfreq, hti->control_chan, + sband->band); + enable_ht = false; } if (enable_ht) { - channel_type = NL80211_CHAN_HT20; + rx_channel_type = NL80211_CHAN_HT20; if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) && !ieee80111_cfg_override_disables_ht40(sdata) && @@ -230,29 +225,28 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) { switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: - if (!(local->hw.conf.channel->flags & - IEEE80211_CHAN_NO_HT40PLUS)) - channel_type = NL80211_CHAN_HT40PLUS; + rx_channel_type = NL80211_CHAN_HT40PLUS; break; case IEEE80211_HT_PARAM_CHA_SEC_BELOW: - if (!(local->hw.conf.channel->flags & - IEEE80211_CHAN_NO_HT40MINUS)) - channel_type = NL80211_CHAN_HT40MINUS; + rx_channel_type = NL80211_CHAN_HT40MINUS; break; } } } + tx_channel_type = ieee80211_get_tx_channel_type(local, rx_channel_type); + if (local->tmp_channel) - local->tmp_channel_type = channel_type; + local->tmp_channel_type = rx_channel_type; - if (!ieee80211_set_channel_type(local, sdata, channel_type)) { + if (!ieee80211_set_channel_type(local, sdata, rx_channel_type)) { /* can only fail due to HT40+/- mismatch */ - channel_type = NL80211_CHAN_HT20; - WARN_ON(!ieee80211_set_channel_type(local, sdata, channel_type)); + rx_channel_type = NL80211_CHAN_HT20; + WARN_ON(!ieee80211_set_channel_type(local, sdata, + rx_channel_type)); } - if (beacon_htcap_ie && (prev_chantype != channel_type)) { + if (beacon_htcap_ie && (prev_chantype != rx_channel_type)) { /* * Whenever the AP announces the HT mode change that can be * 40MHz intolerant or etc., it would be safer to stop tx @@ -270,13 +264,13 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, /* channel_type change automatically detected */ ieee80211_hw_config(local, 0); - if (prev_chantype != channel_type) { + if (prev_chantype != tx_channel_type) { rcu_read_lock(); sta = sta_info_get(sdata, bssid); if (sta) rate_control_rate_update(local, sband, sta, IEEE80211_RC_HT_CHANGED, - channel_type); + tx_channel_type); rcu_read_unlock(); if (beacon_htcap_ie) @@ -289,7 +283,7 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, /* if bss configuration changed store the new one */ if (sdata->ht_opmode_valid != enable_ht || sdata->vif.bss_conf.ht_operation_mode != ht_opmode || - prev_chantype != channel_type) { + prev_chantype != rx_channel_type) { changed |= BSS_CHANGED_HT; sdata->vif.bss_conf.ht_operation_mode = ht_opmode; sdata->ht_opmode_valid = enable_ht; @@ -335,9 +329,6 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap)); - if (!sband->ht_cap.ht_supported) - return; - if (!ht_info_ie) return; @@ -405,7 +396,6 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) u16 capab; struct ieee80211_supported_band *sband; u32 rates = 0; - struct ieee80211_bss *bss = (void *)assoc_data->bss->priv; lockdep_assert_held(&ifmgd->mtx); @@ -566,8 +556,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) offset = noffset; } - if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N) && - bss->wmm_used && local->hw.queues >= 4) + if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) ieee80211_add_ht_ie(sdata, skb, assoc_data->ht_information_ie, sband, local->oper_channel, ifmgd->ap_smps); @@ -581,10 +570,10 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) offset = noffset; } - if (assoc_data->wmm_used && local->hw.queues >= 4) { - if (assoc_data->uapsd_used) { - qos_info = local->uapsd_queues; - qos_info |= (local->uapsd_max_sp_len << + if (assoc_data->wmm) { + if (assoc_data->uapsd) { + qos_info = ifmgd->uapsd_queues; + qos_info |= (ifmgd->uapsd_max_sp_len << IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT); } else { qos_info = 0; @@ -1203,7 +1192,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local, return; if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED) - uapsd_queues = local->uapsd_queues; + uapsd_queues = ifmgd->uapsd_queues; count = wmm_param[6] & 0x0f; if (count == ifmgd->wmm_last_param_set) @@ -1329,7 +1318,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, bss_info_changed |= BSS_CHANGED_ASSOC; /* set timing information */ bss_conf->beacon_int = cbss->beacon_interval; - bss_conf->timestamp = cbss->tsf; + bss_conf->last_tsf = cbss->tsf; bss_info_changed |= BSS_CHANGED_BEACON_INT; bss_info_changed |= ieee80211_handle_bss_capability(sdata, @@ -1355,15 +1344,6 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, bss_conf->dtim_period = 0; bss_conf->assoc = 1; - /* - * For now just always ask the driver to update the basic rateset - * when we have associated, we aren't checking whether it actually - * changed or not. - */ - bss_info_changed |= BSS_CHANGED_BASIC_RATES; - - /* And the BSSID changed - we're associated now */ - bss_info_changed |= BSS_CHANGED_BSSID; /* Tell the driver to monitor connection quality (if supported) */ if (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI && @@ -1394,7 +1374,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; struct sta_info *sta; - u32 changed = 0, config_changed = 0; + u32 changed = 0; u8 bssid[ETH_ALEN]; ASSERT_MGD_MTX(ifmgd); @@ -1454,9 +1434,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_ASSOC; sdata->vif.bss_conf.assoc = false; - /* channel(_type) changes are handled by ieee80211_hw_config */ - WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT)); - /* on the next assoc, re-program HT parameters */ sdata->ht_opmode_valid = false; memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa)); @@ -1469,12 +1446,10 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, if (local->hw.conf.flags & IEEE80211_CONF_PS) { local->hw.conf.flags &= ~IEEE80211_CONF_PS; - config_changed |= IEEE80211_CONF_CHANGE_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); } local->ps_sdata = NULL; - ieee80211_hw_config(local, config_changed); - /* Disable ARP filtering */ if (sdata->vif.bss_conf.arp_filter_enabled) { sdata->vif.bss_conf.arp_filter_enabled = false; @@ -1488,6 +1463,10 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT; ieee80211_bss_info_change_notify(sdata, changed); + /* channel(_type) changes are handled by ieee80211_hw_config */ + WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT)); + ieee80211_hw_config(local, 0); + /* disassociated - set to defaults now */ ieee80211_set_wmm_default(sdata, false); @@ -1770,11 +1749,6 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, lockdep_assert_held(&sdata->u.mgd.mtx); - if (auth_data->synced) - drv_finish_tx_sync(sdata->local, sdata, - auth_data->bss->bssid, - IEEE80211_TX_SYNC_AUTH); - if (!assoc) { sta_info_destroy_addr(sdata, auth_data->bss->bssid); @@ -1862,10 +1836,6 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: authenticated\n", sdata->name); out: - if (ifmgd->auth_data->synced) - drv_finish_tx_sync(sdata->local, sdata, bssid, - IEEE80211_TX_SYNC_AUTH); - ifmgd->auth_data->synced = false; ifmgd->auth_data->done = true; ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC; run_again(ifmgd, ifmgd->auth_data->timeout); @@ -2005,11 +1975,6 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, lockdep_assert_held(&sdata->u.mgd.mtx); - if (assoc_data->synced) - drv_finish_tx_sync(sdata->local, sdata, - assoc_data->bss->bssid, - IEEE80211_TX_SYNC_ASSOC); - if (!assoc) { sta_info_destroy_addr(sdata, assoc_data->bss->bssid); @@ -2030,15 +1995,12 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, struct ieee80211_supported_band *sband; struct sta_info *sta; u8 *pos; - u32 rates, basic_rates; u16 capab_info, aid; struct ieee802_11_elems elems; struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; u32 changed = 0; int err; - bool have_higher_than_11mbit = false; u16 ap_ht_cap_flags; - int min_rate = INT_MAX, min_rate_index = -1; /* AssocResp and ReassocResp have identical structure */ @@ -2083,39 +2045,8 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, return false; } - rates = 0; - basic_rates = 0; sband = local->hw.wiphy->bands[local->oper_channel->band]; - ieee80211_get_rates(sband, elems.supp_rates, elems.supp_rates_len, - &rates, &basic_rates, &have_higher_than_11mbit, - &min_rate, &min_rate_index); - - ieee80211_get_rates(sband, elems.ext_supp_rates, - elems.ext_supp_rates_len, &rates, &basic_rates, - &have_higher_than_11mbit, - &min_rate, &min_rate_index); - - /* - * some buggy APs don't advertise basic_rates. use the lowest - * supported rate instead. - */ - if (unlikely(!basic_rates) && min_rate_index >= 0) { - printk(KERN_DEBUG "%s: No basic rates in AssocResp. " - "Using min supported rate instead.\n", sdata->name); - basic_rates = BIT(min_rate_index); - } - - sta->sta.supp_rates[local->oper_channel->band] = rates; - sdata->vif.bss_conf.basic_rates = basic_rates; - - /* cf. IEEE 802.11 9.2.12 */ - if (local->oper_channel->band == IEEE80211_BAND_2GHZ && - have_higher_than_11mbit) - sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE; - else - sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; - if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, elems.ht_cap_elem, &sta->sta.ht_cap); @@ -2162,7 +2093,6 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_QOS; if (elems.ht_info_elem && elems.wmm_param && - (sdata->local->hw.queues >= 4) && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem, cbss->bssid, ap_ht_cap_flags, @@ -2255,14 +2185,6 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, } else { printk(KERN_DEBUG "%s: associated\n", sdata->name); - /* tell driver about sync done first */ - if (assoc_data->synced) { - drv_finish_tx_sync(sdata->local, sdata, - assoc_data->bss->bssid, - IEEE80211_TX_SYNC_ASSOC); - assoc_data->synced = false; - } - if (!ieee80211_assoc_success(sdata, *bss, mgmt, len)) { /* oops -- internal error -- send timeout for now */ ieee80211_destroy_assoc_data(sdata, true); @@ -2747,14 +2669,6 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) if (WARN_ON_ONCE(!auth_data)) return -EINVAL; - if (!auth_data->synced) { - int ret = drv_tx_sync(local, sdata, auth_data->bss->bssid, - IEEE80211_TX_SYNC_AUTH); - if (ret) - return ret; - } - auth_data->synced = true; - auth_data->tries++; if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { @@ -2811,14 +2725,6 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) lockdep_assert_held(&sdata->u.mgd.mtx); - if (!assoc_data->synced) { - int ret = drv_tx_sync(local, sdata, assoc_data->bss->bssid, - IEEE80211_TX_SYNC_ASSOC); - if (ret) - return ret; - } - assoc_data->synced = true; - assoc_data->tries++; if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) { printk(KERN_DEBUG "%s: association with %pM timed out\n", @@ -3107,6 +3013,8 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) ifmgd->flags = 0; ifmgd->powersave = sdata->wdev.ps; + ifmgd->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; + ifmgd->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; mutex_init(&ifmgd->mtx); @@ -3143,6 +3051,101 @@ int ieee80211_max_network_latency(struct notifier_block *nb, return 0; } +static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, + struct cfg80211_bss *cbss, bool assoc) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_bss *bss = (void *)cbss->priv; + struct sta_info *sta; + bool have_sta = false; + int err; + + if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data)) + return -EINVAL; + + if (assoc) { + rcu_read_lock(); + have_sta = sta_info_get(sdata, cbss->bssid); + rcu_read_unlock(); + } + + if (!have_sta) { + sta = sta_info_alloc(sdata, cbss->bssid, GFP_KERNEL); + if (!sta) + return -ENOMEM; + } + + mutex_lock(&local->mtx); + ieee80211_recalc_idle(sdata->local); + mutex_unlock(&local->mtx); + + /* switch to the right channel */ + local->oper_channel = cbss->channel; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); + + if (!have_sta) { + struct ieee80211_supported_band *sband; + u32 rates = 0, basic_rates = 0; + bool have_higher_than_11mbit; + int min_rate = INT_MAX, min_rate_index = -1; + + sband = sdata->local->hw.wiphy->bands[cbss->channel->band]; + + ieee80211_get_rates(sband, bss->supp_rates, + bss->supp_rates_len, + &rates, &basic_rates, + &have_higher_than_11mbit, + &min_rate, &min_rate_index); + + /* + * This used to be a workaround for basic rates missing + * in the association response frame. Now that we no + * longer use the basic rates from there, it probably + * doesn't happen any more, but keep the workaround so + * in case some *other* APs are buggy in different ways + * we can connect -- with a warning. + */ + if (!basic_rates && min_rate_index >= 0) { + printk(KERN_DEBUG + "%s: No basic rates, using min rate instead.\n", + sdata->name); + basic_rates = BIT(min_rate_index); + } + + sta->sta.supp_rates[cbss->channel->band] = rates; + sdata->vif.bss_conf.basic_rates = basic_rates; + + /* cf. IEEE 802.11 9.2.12 */ + if (local->oper_channel->band == IEEE80211_BAND_2GHZ && + have_higher_than_11mbit) + sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE; + else + sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; + + memcpy(ifmgd->bssid, cbss->bssid, ETH_ALEN); + + /* tell driver about BSSID and basic rates */ + ieee80211_bss_info_change_notify(sdata, + BSS_CHANGED_BSSID | BSS_CHANGED_BASIC_RATES); + + if (assoc) + sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); + + err = sta_info_insert(sta); + sta = NULL; + if (err) { + printk(KERN_DEBUG + "%s: failed to insert STA entry for the AP (error %d)\n", + sdata->name, err); + return err; + } + } else + WARN_ON_ONCE(compare_ether_addr(ifmgd->bssid, cbss->bssid)); + + return 0; +} + /* config hooks */ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, struct cfg80211_auth_request *req) @@ -3150,7 +3153,6 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_mgd_auth_data *auth_data; - struct sta_info *sta; u16 auth_alg; int err; @@ -3216,38 +3218,12 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: authenticate with %pM\n", sdata->name, req->bss->bssid); - mutex_lock(&local->mtx); - ieee80211_recalc_idle(sdata->local); - mutex_unlock(&local->mtx); - - /* switch to the right channel */ - local->oper_channel = req->bss->channel; - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); - - /* set BSSID */ - memcpy(ifmgd->bssid, req->bss->bssid, ETH_ALEN); - ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); - - /* add station entry */ - sta = sta_info_alloc(sdata, req->bss->bssid, GFP_KERNEL); - if (!sta) { - err = -ENOMEM; + err = ieee80211_prep_connection(sdata, req->bss, false); + if (err) goto err_clear; - } - - err = sta_info_insert(sta); - if (err) { - printk(KERN_DEBUG - "%s: failed to insert STA entry for the AP %pM (error %d)\n", - sdata->name, req->bss->bssid, err); - goto err_clear; - } err = ieee80211_probe_auth(sdata); if (err) { - if (auth_data->synced) - drv_finish_tx_sync(local, sdata, req->bss->bssid, - IEEE80211_TX_SYNC_AUTH); sta_info_destroy_addr(sdata, req->bss->bssid); goto err_clear; } @@ -3274,7 +3250,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_bss *bss = (void *)req->bss->priv; struct ieee80211_mgd_assoc_data *assoc_data; - struct sta_info *sta; + struct ieee80211_supported_band *sband; const u8 *ssidie; int i, err; @@ -3316,6 +3292,13 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, ifmgd->beacon_crc_valid = false; + /* + * IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode. + * We still associate in non-HT mode (11a/b/g) if any one of these + * ciphers is configured as pairwise. + * We can set this to true for non-11n hardware, that'll be checked + * separately along with the peer capabilities. + */ for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 || req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP || @@ -3325,6 +3308,12 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, if (req->flags & ASSOC_REQ_DISABLE_HT) ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + /* Also disable HT if we don't support it or the AP doesn't use WMM */ + sband = local->hw.wiphy->bands[req->bss->channel->band]; + if (!sband->ht_cap.ht_supported || + local->hw.queues < 4 || !bss->wmm_used) + ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa)); memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, sizeof(ifmgd->ht_capa_mask)); @@ -3344,15 +3333,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, } else ifmgd->ap_smps = ifmgd->req_smps; - /* - * IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode. - * We still associate in non-HT mode (11a/b/g) if any one of these - * ciphers is configured as pairwise. - * We can set this to true for non-11n hardware, that'll be checked - * separately along with the peer capabilities. - */ assoc_data->capability = req->bss->capability; - assoc_data->wmm_used = bss->wmm_used; + assoc_data->wmm = bss->wmm_used && (local->hw.queues >= 4); assoc_data->supp_rates = bss->supp_rates; assoc_data->supp_rates_len = bss->supp_rates_len; assoc_data->ht_information_ie = @@ -3360,10 +3342,10 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, if (bss->wmm_used && bss->uapsd_supported && (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) { - assoc_data->uapsd_used = true; + assoc_data->uapsd = true; ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED; } else { - assoc_data->uapsd_used = false; + assoc_data->uapsd = false; ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED; } @@ -3393,41 +3375,9 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, ifmgd->assoc_data = assoc_data; - mutex_lock(&local->mtx); - ieee80211_recalc_idle(sdata->local); - mutex_unlock(&local->mtx); - - /* switch to the right channel */ - local->oper_channel = req->bss->channel; - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); - - rcu_read_lock(); - sta = sta_info_get(sdata, req->bss->bssid); - rcu_read_unlock(); - - if (!sta) { - /* set BSSID */ - memcpy(ifmgd->bssid, req->bss->bssid, ETH_ALEN); - ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); - - sta = sta_info_alloc(sdata, req->bss->bssid, GFP_KERNEL); - if (!sta) { - err = -ENOMEM; - goto err_clear; - } - - sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); - - err = sta_info_insert(sta); - sta = NULL; - if (err) { - printk(KERN_DEBUG - "%s: failed to insert STA entry for the AP (error %d)\n", - sdata->name, err); - goto err_clear; - } - } else - WARN_ON_ONCE(compare_ether_addr(ifmgd->bssid, req->bss->bssid)); + err = ieee80211_prep_connection(sdata, req->bss, true); + if (err) + goto err_clear; if (!bss->dtim_period && sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) { diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index ff5f7b84e825..16e0b277b9a8 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -568,6 +568,13 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) minstrel_next_sample_idx(mi); /* + * Sampling might add some overhead (RTS, no aggregation) + * to the frame. Hence, don't use sampling for the currently + * used max TP rate. + */ + if (sample_idx == mi->max_tp_rate) + return -1; + /* * When not using MRR, do not sample if the probability is already * higher than 95% to avoid wasting airtime */ @@ -692,6 +699,7 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband, int ack_dur; int stbc; int i; + unsigned int smps; /* fall back to the old minstrel for legacy stations */ if (!sta->ht_cap.ht_supported) @@ -731,6 +739,9 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband, oper_chan_type != NL80211_CHAN_HT40PLUS) sta_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + smps = (sta_cap & IEEE80211_HT_CAP_SM_PS) >> + IEEE80211_HT_CAP_SM_PS_SHIFT; + for (i = 0; i < ARRAY_SIZE(mi->groups); i++) { u16 req = 0; @@ -748,6 +759,11 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband, if ((sta_cap & req) != req) continue; + /* Mark MCS > 7 as unsupported if STA is in static SMPS mode */ + if (smps == WLAN_HT_CAP_SM_PS_STATIC && + minstrel_mcs_groups[i].streams > 1) + continue; + mi->groups[i].supported = mcs->rx_mask[minstrel_mcs_groups[i].streams - 1]; diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 5f6e32ca0858..bcfe8c77c839 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1063,20 +1063,9 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) return RX_DROP_MONITOR; } - if (skb_linearize(rx->skb)) - return RX_DROP_UNUSABLE; - /* the hdr variable is invalid now! */ - switch (rx->key->conf.cipher) { case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: - /* Check for weak IVs if possible */ - if (rx->sta && ieee80211_is_data(fc) && - (!(status->flag & RX_FLAG_IV_STRIPPED) || - !(status->flag & RX_FLAG_DECRYPTED)) && - ieee80211_wep_is_weak_iv(rx->skb, rx->key)) - rx->sta->wep_weak_iv_count++; - result = ieee80211_crypto_wep_decrypt(rx); break; case WLAN_CIPHER_SUITE_TKIP: @@ -1096,6 +1085,8 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) return RX_DROP_UNUSABLE; } + /* the hdr variable is invalid after the decrypt handlers */ + /* either the frame has been decrypted or will be dropped */ status->flag |= RX_FLAG_DECRYPTED; @@ -2278,9 +2269,11 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) sband = rx->local->hw.wiphy->bands[status->band]; - rate_control_rate_update(local, sband, rx->sta, - IEEE80211_RC_SMPS_CHANGED, - local->_oper_channel_type); + rate_control_rate_update( + local, sband, rx->sta, + IEEE80211_RC_SMPS_CHANGED, + ieee80211_get_tx_channel_type( + local, local->_oper_channel_type)); goto handled; } default: diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 570737df2d22..782a60198df4 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -226,12 +226,12 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) * have correct qos tag for some reason, due the network or the * peer application. * - * Note: local->uapsd_queues access is racy here. If the value is + * Note: ifmgd->uapsd_queues access is racy here. If the value is * changed via debugfs, user needs to reassociate manually to have * everything in sync. */ if ((ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED) - && (local->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) + && (ifmgd->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) && skb_get_queue_mapping(tx->skb) == 0) return TX_CONTINUE; @@ -1065,6 +1065,7 @@ static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx, { bool queued = false; bool reset_agg_timer = false; + struct sk_buff *purge_skb = NULL; if (test_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state)) { info->flags |= IEEE80211_TX_CTL_AMPDU; @@ -1106,8 +1107,13 @@ static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx, info->control.vif = &tx->sdata->vif; info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING; __skb_queue_tail(&tid_tx->pending, skb); + if (skb_queue_len(&tid_tx->pending) > STA_MAX_TX_BUFFER) + purge_skb = __skb_dequeue(&tid_tx->pending); } spin_unlock(&tx->sta->lock); + + if (purge_skb) + dev_kfree_skb(purge_skb); } /* reset session timer */ diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index 68ad351479df..7aa31bbfaa3b 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -263,16 +263,14 @@ static int ieee80211_wep_decrypt(struct ieee80211_local *local, } -bool ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key) +static bool ieee80211_wep_is_weak_iv(struct sk_buff *skb, + struct ieee80211_key *key) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; unsigned int hdrlen; u8 *ivpos; u32 iv; - if (!ieee80211_has_protected(hdr->frame_control)) - return false; - hdrlen = ieee80211_hdrlen(hdr->frame_control); ivpos = skb->data + hdrlen; iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2]; @@ -286,18 +284,27 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx) struct sk_buff *skb = rx->skb; struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + __le16 fc = hdr->frame_control; - if (!ieee80211_is_data(hdr->frame_control) && - !ieee80211_is_auth(hdr->frame_control)) + if (!ieee80211_is_data(fc) && !ieee80211_is_auth(fc)) return RX_CONTINUE; if (!(status->flag & RX_FLAG_DECRYPTED)) { + if (skb_linearize(rx->skb)) + return RX_DROP_UNUSABLE; + if (rx->sta && ieee80211_wep_is_weak_iv(rx->skb, rx->key)) + rx->sta->wep_weak_iv_count++; if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) return RX_DROP_UNUSABLE; } else if (!(status->flag & RX_FLAG_IV_STRIPPED)) { + if (!pskb_may_pull(rx->skb, ieee80211_hdrlen(fc) + WEP_IV_LEN)) + return RX_DROP_UNUSABLE; + if (rx->sta && ieee80211_wep_is_weak_iv(rx->skb, rx->key)) + rx->sta->wep_weak_iv_count++; ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key); /* remove ICV */ - skb_trim(rx->skb, rx->skb->len - WEP_ICV_LEN); + if (pskb_trim(rx->skb, rx->skb->len - WEP_ICV_LEN)) + return RX_DROP_UNUSABLE; } return RX_CONTINUE; diff --git a/net/mac80211/wep.h b/net/mac80211/wep.h index 01e54840a628..9615749d1f65 100644 --- a/net/mac80211/wep.h +++ b/net/mac80211/wep.h @@ -25,7 +25,6 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local, const u8 *key, int keylen, int keyidx); int ieee80211_wep_decrypt_data(struct crypto_cipher *tfm, u8 *rc4key, size_t klen, u8 *data, size_t data_len); -bool ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key); ieee80211_rx_result ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx); diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index b758350919ff..0ae23c60968c 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -138,6 +138,10 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) if (skb->len < hdrlen + MICHAEL_MIC_LEN) return RX_DROP_UNUSABLE; + if (skb_linearize(rx->skb)) + return RX_DROP_UNUSABLE; + hdr = (void *)skb->data; + data = skb->data + hdrlen; data_len = skb->len - hdrlen - MICHAEL_MIC_LEN; key = &rx->key->conf.key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY]; @@ -253,6 +257,11 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx) if (!rx->sta || skb->len - hdrlen < 12) return RX_DROP_UNUSABLE; + /* it may be possible to optimize this a bit more */ + if (skb_linearize(rx->skb)) + return RX_DROP_UNUSABLE; + hdr = (void *)skb->data; + /* * Let TKIP code verify IV, but skip decryption. * In the case where hardware checks the IV as well, @@ -484,6 +493,14 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) if (!rx->sta || data_len < 0) return RX_DROP_UNUSABLE; + if (status->flag & RX_FLAG_DECRYPTED) { + if (!pskb_may_pull(rx->skb, hdrlen + CCMP_HDR_LEN)) + return RX_DROP_UNUSABLE; + } else { + if (skb_linearize(rx->skb)) + return RX_DROP_UNUSABLE; + } + ccmp_hdr2pn(pn, skb->data + hdrlen); queue = rx->security_idx; @@ -509,7 +526,8 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) memcpy(key->u.ccmp.rx_pn[queue], pn, CCMP_PN_LEN); /* Remove CCMP header and MIC */ - skb_trim(skb, skb->len - CCMP_MIC_LEN); + if (pskb_trim(skb, skb->len - CCMP_MIC_LEN)) + return RX_DROP_UNUSABLE; memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen); skb_pull(skb, CCMP_HDR_LEN); @@ -609,6 +627,8 @@ ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx) if (!ieee80211_is_mgmt(hdr->frame_control)) return RX_CONTINUE; + /* management frames are already linear */ + if (skb->len < 24 + sizeof(*mmie)) return RX_DROP_UNUSABLE; diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 39dbdf2adb12..4c1eb9472ddb 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -205,6 +205,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { }, [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, + [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, }; /* policy for the key attributes */ @@ -5116,6 +5117,13 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) wiphy = &rdev->wiphy; + connect.bg_scan_period = -1; + if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && + (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { + connect.bg_scan_period = + nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); + } + if (info->attrs[NL80211_ATTR_MAC]) connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); diff --git a/net/wireless/scan.c b/net/wireless/scan.c index afde7e5f0010..70faadf16a32 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -734,9 +734,8 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev, struct cfg80211_bss* cfg80211_inform_bss(struct wiphy *wiphy, struct ieee80211_channel *channel, - const u8 *bssid, - u64 timestamp, u16 capability, u16 beacon_interval, - const u8 *ie, size_t ielen, + const u8 *bssid, u64 tsf, u16 capability, + u16 beacon_interval, const u8 *ie, size_t ielen, s32 signal, gfp_t gfp) { struct cfg80211_internal_bss *res; @@ -758,7 +757,7 @@ cfg80211_inform_bss(struct wiphy *wiphy, memcpy(res->pub.bssid, bssid, ETH_ALEN); res->pub.channel = channel; res->pub.signal = signal; - res->pub.tsf = timestamp; + res->pub.tsf = tsf; res->pub.beacon_interval = beacon_interval; res->pub.capability = capability; /* diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c index 326750b99151..7c01c2f3b6cf 100644 --- a/net/wireless/wext-sme.c +++ b/net/wireless/wext-sme.c @@ -30,6 +30,9 @@ int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev, wdev->wext.connect.ie = wdev->wext.ie; wdev->wext.connect.ie_len = wdev->wext.ie_len; + /* Use default background scan period */ + wdev->wext.connect.bg_scan_period = -1; + if (wdev->wext.keys) { wdev->wext.keys->def = wdev->wext.default_key; wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key; |