diff options
Diffstat (limited to 'net/mac80211')
32 files changed, 790 insertions, 306 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index 4d6f865..798d9b9 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -6,6 +6,7 @@ config MAC80211 select CRYPTO_ARC4 select CRYPTO_AES select CRC32 + select AVERAGE ---help--- This option enables the hardware independent IEEE 802.11 networking stack. diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c index d2b03e0..4bd6ef0 100644 --- a/net/mac80211/aes_ccm.c +++ b/net/mac80211/aes_ccm.c @@ -147,6 +147,5 @@ struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[]) void ieee80211_aes_key_free(struct crypto_cipher *tfm) { - if (tfm) - crypto_free_cipher(tfm); + crypto_free_cipher(tfm); } diff --git a/net/mac80211/aes_cmac.c b/net/mac80211/aes_cmac.c index b4d66cc..d502b26 100644 --- a/net/mac80211/aes_cmac.c +++ b/net/mac80211/aes_cmac.c @@ -128,6 +128,5 @@ struct crypto_cipher * ieee80211_aes_cmac_key_setup(const u8 key[]) void ieee80211_aes_cmac_key_free(struct crypto_cipher *tfm) { - if (tfm) - crypto_free_cipher(tfm); + crypto_free_cipher(tfm); } diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 720b7a8..f138b19 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -129,9 +129,7 @@ static void sta_rx_agg_reorder_timer_expired(unsigned long data) timer_to_tid[0]); rcu_read_lock(); - spin_lock(&sta->lock); ieee80211_release_reorder_timeout(sta, *ptid); - spin_unlock(&sta->lock); rcu_read_unlock(); } @@ -256,7 +254,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, } /* prepare A-MPDU MLME for Rx aggregation */ - tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC); + tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_KERNEL); if (!tid_agg_rx) { #ifdef CONFIG_MAC80211_HT_DEBUG if (net_ratelimit()) @@ -280,9 +278,9 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, /* prepare reordering buffer */ tid_agg_rx->reorder_buf = - kcalloc(buf_size, sizeof(struct sk_buff *), GFP_ATOMIC); + kcalloc(buf_size, sizeof(struct sk_buff *), GFP_KERNEL); tid_agg_rx->reorder_time = - kcalloc(buf_size, sizeof(unsigned long), GFP_ATOMIC); + kcalloc(buf_size, sizeof(unsigned long), GFP_KERNEL); if (!tid_agg_rx->reorder_buf || !tid_agg_rx->reorder_time) { #ifdef CONFIG_MAC80211_HT_DEBUG if (net_ratelimit()) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 18bd0e5..c30b8b7 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -19,9 +19,10 @@ #include "rate.h" #include "mesh.h" -static int ieee80211_add_iface(struct wiphy *wiphy, char *name, - enum nl80211_iftype type, u32 *flags, - struct vif_params *params) +static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name, + enum nl80211_iftype type, + u32 *flags, + struct vif_params *params) { struct ieee80211_local *local = wiphy_priv(wiphy); struct net_device *dev; @@ -29,12 +30,15 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name, int err; err = ieee80211_if_add(local, name, &dev, type, params); - if (err || type != NL80211_IFTYPE_MONITOR || !flags) - return err; + if (err) + return ERR_PTR(err); - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - sdata->u.mntr_flags = *flags; - return 0; + if (type == NL80211_IFTYPE_MONITOR && flags) { + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + sdata->u.mntr_flags = *flags; + } + + return dev; } static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev) @@ -56,11 +60,6 @@ static int ieee80211_change_iface(struct wiphy *wiphy, if (ret) return ret; - if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len) - ieee80211_sdata_set_mesh_id(sdata, - params->mesh_id_len, - params->mesh_id); - if (type == NL80211_IFTYPE_AP_VLAN && params && params->use_4addr == 0) rcu_assign_pointer(sdata->u.vlan.sta, NULL); @@ -343,8 +342,9 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { - sinfo->filled |= STATION_INFO_SIGNAL; + sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; sinfo->signal = (s8)sta->last_signal; + sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); } sinfo->txrate.flags = 0; @@ -999,9 +999,9 @@ static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) return (mask >> (parm-1)) & 0x1; } -static int ieee80211_set_mesh_params(struct wiphy *wiphy, - struct net_device *dev, - const struct mesh_config *nconf, u32 mask) +static int ieee80211_update_mesh_params(struct wiphy *wiphy, + struct net_device *dev, u32 mask, + const struct mesh_config *nconf) { struct mesh_config *conf; struct ieee80211_sub_if_data *sdata; @@ -1024,6 +1024,8 @@ static int ieee80211_set_mesh_params(struct wiphy *wiphy, conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) conf->dot11MeshTTL = nconf->dot11MeshTTL; + if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) + conf->dot11MeshTTL = nconf->element_ttl; if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) conf->auto_open_plinks = nconf->auto_open_plinks; if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) @@ -1050,6 +1052,30 @@ static int ieee80211_set_mesh_params(struct wiphy *wiphy, return 0; } +static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, + const struct mesh_config *conf, + const struct mesh_setup *setup) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; + + memcpy(&sdata->u.mesh.mshcfg, conf, sizeof(struct mesh_config)); + ifmsh->mesh_id_len = setup->mesh_id_len; + memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); + + ieee80211_start_mesh(sdata); + + return 0; +} + +static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + ieee80211_stop_mesh(sdata); + + return 0; +} #endif static int ieee80211_change_bss(struct wiphy *wiphy, @@ -1108,6 +1134,12 @@ static int ieee80211_change_bss(struct wiphy *wiphy, sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; } + if (params->ht_opmode >= 0) { + sdata->vif.bss_conf.ht_operation_mode = + (u16) params->ht_opmode; + changed |= BSS_CHANGED_HT; + } + ieee80211_bss_info_change_notify(sdata, changed); return 0; @@ -1299,6 +1331,13 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) struct ieee80211_local *local = wiphy_priv(wiphy); int err; + if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { + err = drv_set_frag_threshold(local, wiphy->frag_threshold); + + if (err) + return err; + } + if (changed & WIPHY_PARAM_COVERAGE_CLASS) { err = drv_set_coverage_class(local, wiphy->coverage_class); @@ -1544,27 +1583,54 @@ static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, return ieee80211_wk_cancel_remain_on_channel(sdata, cookie); } +static enum work_done_result +ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb) +{ + /* + * Use the data embedded in the work struct for reporting + * here so if the driver mangled the SKB before dropping + * it (which is the only way we really should get here) + * then we don't report mangled data. + * + * If there was no wait time, then by the time we get here + * the driver will likely not have reported the status yet, + * so in that case userspace will have to deal with it. + */ + + if (wk->offchan_tx.wait && wk->offchan_tx.frame) + cfg80211_mgmt_tx_status(wk->sdata->dev, + (unsigned long) wk->offchan_tx.frame, + wk->ie, wk->ie_len, false, GFP_KERNEL); + + return WORK_DONE_DESTROY; +} + static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, - struct ieee80211_channel *chan, + struct ieee80211_channel *chan, bool offchan, enum nl80211_channel_type channel_type, - bool channel_type_valid, + bool channel_type_valid, unsigned int wait, const u8 *buf, size_t len, u64 *cookie) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct sta_info *sta; + struct ieee80211_work *wk; const struct ieee80211_mgmt *mgmt = (void *)buf; u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | IEEE80211_TX_CTL_REQ_TX_STATUS; + bool is_offchan = false; /* Check that we are on the requested channel for transmission */ if (chan != local->tmp_channel && chan != local->oper_channel) - return -EBUSY; + is_offchan = true; if (channel_type_valid && (channel_type != local->tmp_channel_type && channel_type != local->_oper_channel_type)) + is_offchan = true; + + if (is_offchan && !offchan) return -EBUSY; switch (sdata->vif.type) { @@ -1598,12 +1664,70 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, IEEE80211_SKB_CB(skb)->flags = flags; skb->dev = sdata->dev; - ieee80211_tx_skb(sdata, skb); *cookie = (unsigned long) skb; + + /* + * Can transmit right away if the channel was the + * right one and there's no wait involved... If a + * wait is involved, we might otherwise not be on + * the right channel for long enough! + */ + if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) { + ieee80211_tx_skb(sdata, skb); + return 0; + } + + wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL); + if (!wk) { + kfree_skb(skb); + return -ENOMEM; + } + + wk->type = IEEE80211_WORK_OFFCHANNEL_TX; + wk->chan = chan; + wk->sdata = sdata; + wk->done = ieee80211_offchan_tx_done; + wk->offchan_tx.frame = skb; + wk->offchan_tx.wait = wait; + wk->ie_len = len; + memcpy(wk->ie, buf, len); + + ieee80211_add_work(wk); return 0; } +static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, + struct net_device *dev, + u64 cookie) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; + struct ieee80211_work *wk; + int ret = -ENOENT; + + mutex_lock(&local->mtx); + list_for_each_entry(wk, &local->work_list, list) { + if (wk->sdata != sdata) + continue; + + if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX) + continue; + + if (cookie != (unsigned long) wk->offchan_tx.frame) + continue; + + wk->timeout = jiffies; + + ieee80211_queue_work(&local->hw, &local->work_work); + ret = 0; + break; + } + mutex_unlock(&local->mtx); + + return ret; +} + static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, struct net_device *dev, u16 frame_type, bool reg) @@ -1621,6 +1745,23 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, ieee80211_queue_work(&local->hw, &local->reconfig_filter); } +static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) +{ + struct ieee80211_local *local = wiphy_priv(wiphy); + + if (local->started) + return -EOPNOTSUPP; + + return drv_set_antenna(local, tx_ant, rx_ant); +} + +static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) +{ + struct ieee80211_local *local = wiphy_priv(wiphy); + + return drv_get_antenna(local, tx_ant, rx_ant); +} + struct cfg80211_ops mac80211_config_ops = { .add_virtual_intf = ieee80211_add_iface, .del_virtual_intf = ieee80211_del_iface, @@ -1645,8 +1786,10 @@ struct cfg80211_ops mac80211_config_ops = { .change_mpath = ieee80211_change_mpath, .get_mpath = ieee80211_get_mpath, .dump_mpath = ieee80211_dump_mpath, - .set_mesh_params = ieee80211_set_mesh_params, + .update_mesh_params = ieee80211_update_mesh_params, .get_mesh_params = ieee80211_get_mesh_params, + .join_mesh = ieee80211_join_mesh, + .leave_mesh = ieee80211_leave_mesh, #endif .change_bss = ieee80211_change_bss, .set_txq_params = ieee80211_set_txq_params, @@ -1671,6 +1814,9 @@ struct cfg80211_ops mac80211_config_ops = { .remain_on_channel = ieee80211_remain_on_channel, .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, .mgmt_tx = ieee80211_mgmt_tx, + .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, .mgmt_frame_register = ieee80211_mgmt_frame_register, + .set_antenna = ieee80211_set_antenna, + .get_antenna = ieee80211_get_antenna, }; diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index 18260aa..1f02e59 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -21,16 +21,30 @@ int mac80211_open_file_generic(struct inode *inode, struct file *file) return 0; } -#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ +#define DEBUGFS_FORMAT_BUFFER_SIZE 100 + +int mac80211_format_buffer(char __user *userbuf, size_t count, + loff_t *ppos, char *fmt, ...) +{ + va_list args; + char buf[DEBUGFS_FORMAT_BUFFER_SIZE]; + int res; + + va_start(args, fmt); + res = vscnprintf(buf, sizeof(buf), fmt, args); + va_end(args); + + return simple_read_from_buffer(userbuf, count, ppos, buf, res); +} + +#define DEBUGFS_READONLY_FILE(name, fmt, value...) \ static ssize_t name## _read(struct file *file, char __user *userbuf, \ size_t count, loff_t *ppos) \ { \ struct ieee80211_local *local = file->private_data; \ - char buf[buflen]; \ - int res; \ \ - res = scnprintf(buf, buflen, fmt "\n", ##value); \ - return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ + return mac80211_format_buffer(userbuf, count, ppos, \ + fmt "\n", ##value); \ } \ \ static const struct file_operations name## _ops = { \ @@ -46,13 +60,13 @@ static const struct file_operations name## _ops = { \ debugfs_create_file(#name, mode, phyd, local, &name## _ops); -DEBUGFS_READONLY_FILE(frequency, 20, "%d", +DEBUGFS_READONLY_FILE(frequency, "%d", local->hw.conf.channel->center_freq); -DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d", +DEBUGFS_READONLY_FILE(total_ps_buffered, "%d", local->total_ps_buffered); -DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x", +DEBUGFS_READONLY_FILE(wep_iv, "%#08x", local->wep_iv & 0xffffff); -DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s", +DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s", local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver"); static ssize_t tsf_read(struct file *file, char __user *user_buf, @@ -60,13 +74,11 @@ static ssize_t tsf_read(struct file *file, char __user *user_buf, { struct ieee80211_local *local = file->private_data; u64 tsf; - char buf[100]; tsf = drv_get_tsf(local); - snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf); - - return simple_read_from_buffer(user_buf, count, ppos, buf, 19); + return mac80211_format_buffer(user_buf, count, ppos, "0x%016llx\n", + (unsigned long long) tsf); } static ssize_t tsf_write(struct file *file, @@ -131,12 +143,9 @@ static ssize_t noack_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ieee80211_local *local = file->private_data; - int res; - char buf[10]; - res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test); - - return simple_read_from_buffer(user_buf, count, ppos, buf, res); + return mac80211_format_buffer(user_buf, count, ppos, "%d\n", + local->wifi_wme_noack_test); } static ssize_t noack_write(struct file *file, @@ -168,12 +177,8 @@ 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; - int res; - char buf[10]; - - res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_queues); - - return simple_read_from_buffer(user_buf, count, ppos, buf, res); + return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n", + local->uapsd_queues); } static ssize_t uapsd_queues_write(struct file *file, @@ -215,12 +220,9 @@ 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; - int res; - char buf[10]; - res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_max_sp_len); - - return simple_read_from_buffer(user_buf, count, ppos, buf, res); + 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, diff --git a/net/mac80211/debugfs.h b/net/mac80211/debugfs.h index 09cc9be..7c87529 100644 --- a/net/mac80211/debugfs.h +++ b/net/mac80211/debugfs.h @@ -4,6 +4,8 @@ #ifdef CONFIG_MAC80211_DEBUGFS extern void debugfs_hw_add(struct ieee80211_local *local); extern int mac80211_open_file_generic(struct inode *inode, struct file *file); +extern int mac80211_format_buffer(char __user *userbuf, size_t count, + loff_t *ppos, char *fmt, ...); #else static inline void debugfs_hw_add(struct ieee80211_local *local) { diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c index 1243d1d..5822a6c 100644 --- a/net/mac80211/debugfs_key.c +++ b/net/mac80211/debugfs_key.c @@ -15,18 +15,17 @@ #include "debugfs.h" #include "debugfs_key.h" -#define KEY_READ(name, prop, buflen, format_string) \ +#define KEY_READ(name, prop, format_string) \ static ssize_t key_##name##_read(struct file *file, \ char __user *userbuf, \ size_t count, loff_t *ppos) \ { \ - char buf[buflen]; \ struct ieee80211_key *key = file->private_data; \ - int res = scnprintf(buf, buflen, format_string, key->prop); \ - return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ + return mac80211_format_buffer(userbuf, count, ppos, \ + format_string, key->prop); \ } -#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n") -#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n") +#define KEY_READ_D(name) KEY_READ(name, name, "%d\n") +#define KEY_READ_X(name) KEY_READ(name, name, "0x%x\n") #define KEY_OPS(name) \ static const struct file_operations key_ ##name## _ops = { \ @@ -39,9 +38,9 @@ static const struct file_operations key_ ##name## _ops = { \ KEY_READ_##format(name) \ KEY_OPS(name) -#define KEY_CONF_READ(name, buflen, format_string) \ - KEY_READ(conf_##name, conf.name, buflen, format_string) -#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n") +#define KEY_CONF_READ(name, format_string) \ + KEY_READ(conf_##name, conf.name, format_string) +#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, "%d\n") #define KEY_CONF_OPS(name) \ static const struct file_operations key_ ##name## _ops = { \ @@ -59,7 +58,7 @@ KEY_CONF_FILE(keyidx, D); KEY_CONF_FILE(hw_key_idx, D); KEY_FILE(flags, X); KEY_FILE(tx_rx_count, D); -KEY_READ(ifindex, sdata->name, IFNAMSIZ + 2, "%s\n"); +KEY_READ(ifindex, sdata->name, "%s\n"); KEY_OPS(ifindex); static ssize_t key_algorithm_read(struct file *file, diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index cbdf36d..2dabdf7 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -251,6 +251,7 @@ IEEE80211_IF_FILE(dot11MeshConfirmTimeout, IEEE80211_IF_FILE(dot11MeshHoldingTimeout, u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC); IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC); +IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC); IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC); IEEE80211_IF_FILE(dot11MeshMaxPeerLinks, u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC); @@ -355,6 +356,7 @@ static void add_mesh_config(struct ieee80211_sub_if_data *sdata) MESHPARAMS_ADD(dot11MeshConfirmTimeout); MESHPARAMS_ADD(dot11MeshHoldingTimeout); MESHPARAMS_ADD(dot11MeshTTL); + MESHPARAMS_ADD(element_ttl); MESHPARAMS_ADD(auto_open_plinks); MESHPARAMS_ADD(dot11MeshMaxPeerLinks); MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout); diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 4601fea..8bb5af8 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -17,20 +17,18 @@ /* sta attributtes */ -#define STA_READ(name, buflen, field, format_string) \ +#define STA_READ(name, field, format_string) \ static ssize_t sta_ ##name## _read(struct file *file, \ char __user *userbuf, \ size_t count, loff_t *ppos) \ { \ - int res; \ struct sta_info *sta = file->private_data; \ - char buf[buflen]; \ - res = scnprintf(buf, buflen, format_string, sta->field); \ - return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ + return mac80211_format_buffer(userbuf, count, ppos, \ + format_string, sta->field); \ } -#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n") -#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n") -#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n") +#define STA_READ_D(name, field) STA_READ(name, field, "%d\n") +#define STA_READ_U(name, field) STA_READ(name, field, "%u\n") +#define STA_READ_S(name, field) STA_READ(name, field, "%s\n") #define STA_OPS(name) \ static const struct file_operations sta_ ##name## _ops = { \ @@ -79,22 +77,18 @@ static ssize_t sta_num_ps_buf_frames_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { - char buf[20]; struct sta_info *sta = file->private_data; - int res = scnprintf(buf, sizeof(buf), "%u\n", - skb_queue_len(&sta->ps_tx_buf)); - return simple_read_from_buffer(userbuf, count, ppos, buf, res); + return mac80211_format_buffer(userbuf, count, ppos, "%u\n", + skb_queue_len(&sta->ps_tx_buf)); } STA_OPS(num_ps_buf_frames); static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { - char buf[20]; struct sta_info *sta = file->private_data; - int res = scnprintf(buf, sizeof(buf), "%d\n", - jiffies_to_msecs(jiffies - sta->last_rx)); - return simple_read_from_buffer(userbuf, count, ppos, buf, res); + return mac80211_format_buffer(userbuf, count, ppos, "%d\n", + jiffies_to_msecs(jiffies - sta->last_rx)); } STA_OPS(inactive_ms); @@ -118,34 +112,35 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, char buf[71 + STA_TID_NUM * 40], *p = buf; int i; struct sta_info *sta = file->private_data; + struct tid_ampdu_rx *tid_rx; + struct tid_ampdu_tx *tid_tx; + + rcu_read_lock(); - spin_lock_bh(&sta->lock); p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", sta->ampdu_mlme.dialog_token_allocator + 1); p += scnprintf(p, sizeof(buf) + buf - p, "TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); + for (i = 0; i < STA_TID_NUM; i++) { + tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); + tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); + p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i); - p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", - !!sta->ampdu_mlme.tid_rx[i]); + p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx); p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", - sta->ampdu_mlme.tid_rx[i] ? - sta->ampdu_mlme.tid_rx[i]->dialog_token : 0); + tid_rx ? tid_rx->dialog_token : 0); p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x", - sta->ampdu_mlme.tid_rx[i] ? - sta->ampdu_mlme.tid_rx[i]->ssn : 0); + tid_rx ? tid_rx->ssn : 0); - p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", - !!sta->ampdu_mlme.tid_tx[i]); + p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx); p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", - sta->ampdu_mlme.tid_tx[i] ? - sta->ampdu_mlme.tid_tx[i]->dialog_token : 0); + tid_tx ? tid_tx->dialog_token : 0); p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d", - sta->ampdu_mlme.tid_tx[i] ? - skb_queue_len(&sta->ampdu_mlme.tid_tx[i]->pending) : 0); + tid_tx ? skb_queue_len(&tid_tx->pending) : 0); p += scnprintf(p, sizeof(buf) + buf - p, "\n"); } - spin_unlock_bh(&sta->lock); + rcu_read_unlock(); return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); } diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 1698382..4244554 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -233,6 +233,20 @@ static inline void drv_get_tkip_seq(struct ieee80211_local *local, trace_drv_get_tkip_seq(local, hw_key_idx, iv32, iv16); } +static inline int drv_set_frag_threshold(struct ieee80211_local *local, + u32 value) +{ + int ret = 0; + + might_sleep(); + + trace_drv_set_frag_threshold(local, value); + if (local->ops->set_frag_threshold) + ret = local->ops->set_frag_threshold(&local->hw, value); + trace_drv_return_int(local, ret); + return ret; +} + static inline int drv_set_rts_threshold(struct ieee80211_local *local, u32 value) { @@ -428,4 +442,27 @@ static inline void drv_channel_switch(struct ieee80211_local *local, trace_drv_return_void(local); } + +static inline int drv_set_antenna(struct ieee80211_local *local, + u32 tx_ant, u32 rx_ant) +{ + int ret = -EOPNOTSUPP; + might_sleep(); + if (local->ops->set_antenna) + ret = local->ops->set_antenna(&local->hw, tx_ant, rx_ant); + trace_drv_set_antenna(local, tx_ant, rx_ant, ret); + return ret; +} + +static inline int drv_get_antenna(struct ieee80211_local *local, + u32 *tx_ant, u32 *rx_ant) +{ + int ret = -EOPNOTSUPP; + might_sleep(); + if (local->ops->get_antenna) + ret = local->ops->get_antenna(&local->hw, tx_ant, rx_ant); + trace_drv_get_antenna(local, *tx_ant, *rx_ant, ret); + return ret; +} + #endif /* __MAC80211_DRIVER_OPS */ diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h index 6831fb1..c2772f2 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/driver-trace.h @@ -531,6 +531,27 @@ TRACE_EVENT(drv_get_tkip_seq, ) ); +TRACE_EVENT(drv_set_frag_threshold, + TP_PROTO(struct ieee80211_local *local, u32 value), + + TP_ARGS(local, value), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(u32, value) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->value = value; + ), + + TP_printk( + LOCAL_PR_FMT " value:%d", + LOCAL_PR_ARG, __entry->value + ) +); + TRACE_EVENT(drv_set_rts_threshold, TP_PROTO(struct ieee80211_local *local, u32 value), @@ -862,6 +883,56 @@ TRACE_EVENT(drv_channel_switch, ) ); +TRACE_EVENT(drv_set_antenna, + TP_PROTO(struct ieee80211_local *local, u32 tx_ant, u32 rx_ant, int ret), + + TP_ARGS(local, tx_ant, rx_ant, ret), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(u32, tx_ant) + __field(u32, rx_ant) + __field(int, ret) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->tx_ant = tx_ant; + __entry->rx_ant = rx_ant; + __entry->ret = ret; + ), + + TP_printk( + LOCAL_PR_FMT " tx_ant:%d rx_ant:%d ret:%d", + LOCAL_PR_ARG, __entry->tx_ant, __entry->rx_ant, __entry->ret + ) +); + +TRACE_EVENT(drv_get_antenna, + TP_PROTO(struct ieee80211_local *local, u32 tx_ant, u32 rx_ant, int ret), + + TP_ARGS(local, tx_ant, rx_ant, ret), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(u32, tx_ant) + __field(u32, rx_ant) + __field(int, ret) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->tx_ant = tx_ant; + __entry->rx_ant = rx_ant; + __entry->ret = ret; + ), + + TP_printk( + LOCAL_PR_FMT " tx_ant:%d rx_ant:%d ret:%d", + LOCAL_PR_ARG, __entry->tx_ant, __entry->rx_ant, __entry->ret + ) +); + /* * Tracing for API calls that drivers call. */ diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 239c483..410d104 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -915,6 +915,8 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, sdata->u.ibss.privacy = params->privacy; sdata->u.ibss.basic_rates = params->basic_rates; + memcpy(sdata->vif.bss_conf.mcast_rate, params->mcast_rate, + sizeof(params->mcast_rate)); sdata->vif.bss_conf.beacon_int = params->beacon_interval; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index b80c386..72499fe 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -260,6 +260,7 @@ enum ieee80211_work_type { IEEE80211_WORK_ASSOC_BEACON_WAIT, IEEE80211_WORK_ASSOC, IEEE80211_WORK_REMAIN_ON_CHANNEL, + IEEE80211_WORK_OFFCHANNEL_TX, }; /** @@ -320,6 +321,10 @@ struct ieee80211_work { struct { u32 duration; } remain; + struct { + struct sk_buff *frame; + u32 wait; + } offchan_tx; }; int ie_len; @@ -349,8 +354,10 @@ struct ieee80211_if_managed { struct work_struct chswitch_work; struct work_struct beacon_connection_loss_work; + unsigned long beacon_timeout; unsigned long probe_timeout; int probe_send_count; + bool nullfunc_failed; struct mutex mtx; struct cfg80211_bss *associated; @@ -602,19 +609,6 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) return container_of(p, struct ieee80211_sub_if_data, vif); } -static inline void -ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata, - u8 mesh_id_len, u8 *mesh_id) -{ -#ifdef CONFIG_MAC80211_MESH - struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; - ifmsh->mesh_id_len = mesh_id_len; - memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len); -#else - WARN_ON(1); -#endif -} - enum sdata_queue_type { IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0, IEEE80211_SDATA_QUEUE_AGG_START = 1, @@ -1264,6 +1258,8 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local, int powersave); void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, struct ieee80211_hdr *hdr); +void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, + struct ieee80211_hdr *hdr, bool ack); void ieee80211_beacon_connection_loss_work(struct work_struct *work); void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, @@ -1278,6 +1274,9 @@ void ieee80211_add_pending_skb(struct ieee80211_local *local, struct sk_buff *skb); int ieee80211_add_pending_skbs(struct ieee80211_local *local, struct sk_buff_head *skbs); +int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, + struct sk_buff_head *skbs, + void (*fn)(void *data), void *data); void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, u16 transaction, u16 auth_alg, @@ -1287,6 +1286,10 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, const u8 *ie, size_t ie_len, enum ieee80211_band band, u32 rate_mask, u8 channel); +struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, + u8 *dst, + const u8 *ssid, size_t ssid_len, + const u8 *ie, size_t ie_len); void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, const u8 *ssid, size_t ssid_len, const u8 *ie, size_t ie_len); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 7aa8559..f0f11bb 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -197,11 +197,6 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) sdata->bss = &sdata->u.ap; break; case NL80211_IFTYPE_MESH_POINT: - if (!ieee80211_vif_is_mesh(&sdata->vif)) - break; - /* mesh ifaces must set allmulti to forward mcast traffic */ - atomic_inc(&local->iff_allmultis); - break; case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_MONITOR: case NL80211_IFTYPE_ADHOC: @@ -273,12 +268,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) goto err_stop; } - if (ieee80211_vif_is_mesh(&sdata->vif)) { - local->fif_other_bss++; - ieee80211_configure_filter(local); - - ieee80211_start_mesh(sdata); - } else if (sdata->vif.type == NL80211_IFTYPE_AP) { + if (sdata->vif.type == NL80211_IFTYPE_AP) { local->fif_pspoll++; local->fif_probe_req++; @@ -503,18 +493,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, ieee80211_adjust_monitor_flags(sdata, -1); ieee80211_configure_filter(local); break; - case NL80211_IFTYPE_MESH_POINT: - if (ieee80211_vif_is_mesh(&sdata->vif)) { - /* other_bss and allmulti are always set on mesh - * ifaces */ - local->fif_other_bss--; - atomic_dec(&local->iff_allmultis); - - ieee80211_configure_filter(local); - - ieee80211_stop_mesh(sdata); - } - /* fall through */ default: flush_work(&sdata->work); /* @@ -1204,12 +1182,6 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, if (ret) goto fail; - if (ieee80211_vif_is_mesh(&sdata->vif) && - params && params->mesh_id_len) - ieee80211_sdata_set_mesh_id(sdata, - params->mesh_id_len, - params->mesh_id); - mutex_lock(&local->iflist_mtx); list_add_tail_rcu(&sdata->list, &local->interfaces); mutex_unlock(&local->iflist_mtx); diff --git a/net/mac80211/key.c b/net/mac80211/key.c index ccd676b..72df1ca 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -84,10 +84,17 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) goto out_unsupported; sdata = key->sdata; - if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { + /* + * The driver doesn't know anything about VLAN interfaces. + * Hence, don't send GTKs for VLAN interfaces to the driver. + */ + if (!(key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE)) + goto out_unsupported; sdata = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); + } ret = drv_set_key(key->local, SET_KEY, sdata, sta, &key->conf); diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 107a0cb..973fee9 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -245,9 +245,12 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, sdata->vif.bss_conf.enable_beacon = !!sdata->u.ibss.presp; break; +#ifdef CONFIG_MAC80211_MESH case NL80211_IFTYPE_MESH_POINT: - sdata->vif.bss_conf.enable_beacon = true; + sdata->vif.bss_conf.enable_beacon = + !!sdata->u.mesh.mesh_id_len; break; +#endif default: /* not reached */ WARN_ON(1); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index c8a4f19..63e1188 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -513,6 +513,11 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata) struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct ieee80211_local *local = sdata->local; + local->fif_other_bss++; + /* mesh ifaces must set allmulti to forward mcast traffic */ + atomic_inc(&local->iff_allmultis); + ieee80211_configure_filter(local); + set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags); ieee80211_mesh_root_setup(ifmsh); ieee80211_queue_work(&local->hw, &sdata->work); @@ -524,6 +529,13 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata) void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata) { + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; + + ifmsh->mesh_id_len = 0; + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); + sta_info_flush(local, NULL); + del_timer_sync(&sdata->u.mesh.housekeeping_timer); del_timer_sync(&sdata->u.mesh.mesh_path_root_timer); /* @@ -534,6 +546,10 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata) * it no longer is. */ cancel_work_sync(&sdata->work); + + local->fif_other_bss--; + atomic_dec(&local->iff_allmultis); + ieee80211_configure_filter(local); } static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, @@ -663,26 +679,6 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata) ieee80211_mesh_housekeeping_timer, (unsigned long) sdata); - ifmsh->mshcfg.dot11MeshRetryTimeout = MESH_RET_T; - ifmsh->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T; - ifmsh->mshcfg.dot11MeshHoldingTimeout = MESH_HOLD_T; - ifmsh->mshcfg.dot11MeshMaxRetries = MESH_MAX_RETR; - ifmsh->mshcfg.dot11MeshTTL = MESH_TTL; - ifmsh->mshcfg.auto_open_plinks = true; - ifmsh->mshcfg.dot11MeshMaxPeerLinks = - MESH_MAX_ESTAB_PLINKS; - ifmsh->mshcfg.dot11MeshHWMPactivePathTimeout = - MESH_PATH_TIMEOUT; - ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval = - MESH_PREQ_MIN_INT; - ifmsh->mshcfg.dot11MeshHWMPnetDiameterTraversalTime = - MESH_DIAM_TRAVERSAL_TIME; - ifmsh->mshcfg.dot11MeshHWMPmaxPREQretries = - MESH_MAX_PREQ_RETRIES; - ifmsh->mshcfg.path_refresh_time = - MESH_PATH_REFRESH_TIME; - ifmsh->mshcfg.min_discovery_timeout = - MESH_MIN_DISCOVERY_TIMEOUT; ifmsh->accepting_plinks = true; ifmsh->preq_id = 0; ifmsh->sn = 0; diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 58e7411..039d7fa 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -175,33 +175,10 @@ struct mesh_rmc { */ #define MESH_CFG_CMP_LEN (IEEE80211_MESH_CONFIG_LEN - 2) -/* Default values, timeouts in ms */ -#define MESH_TTL 31 -#define MESH_MAX_RETR 3 -#define MESH_RET_T 100 -#define MESH_CONF_T 100 -#define MESH_HOLD_T 100 - -#define MESH_PATH_TIMEOUT 5000 -/* Minimum interval between two consecutive PREQs originated by the same - * interface - */ -#define MESH_PREQ_MIN_INT 10 -#define MESH_DIAM_TRAVERSAL_TIME 50 -/* A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds before - * timing out. This way it will remain ACTIVE and no data frames will be - * unnecesarily held in the pending queue. - */ -#define MESH_PATH_REFRESH_TIME 1000 -#define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME) #define MESH_DEFAULT_BEACON_INTERVAL 1000 /* in 1024 us units */ -#define MESH_MAX_PREQ_RETRIES 4 #define MESH_PATH_EXPIRE (600 * HZ) -/* Default maximum number of established plinks per interface */ -#define MESH_MAX_ESTAB_PLINKS 32 - /* Default maximum number of plinks per interface */ #define MESH_MAX_PLINKS 256 diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index 829e08a..5bf64d7 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -232,7 +232,7 @@ int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn, *pos++ = WLAN_EID_PERR; *pos++ = ie_len; /* ttl */ - *pos++ = MESH_TTL; + *pos++ = ttl; /* number of destinations */ *pos++ = 1; /* @@ -522,7 +522,7 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, if (reply) { lifetime = PREQ_IE_LIFETIME(preq_elem); - ttl = ifmsh->mshcfg.dot11MeshTTL; + ttl = ifmsh->mshcfg.element_ttl; if (ttl != 0) { mhwmp_dbg("replying to the PREQ\n"); mesh_path_sel_frame_tx(MPATH_PREP, 0, target_addr, @@ -877,7 +877,7 @@ void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata) sdata->u.mesh.last_sn_update = jiffies; } lifetime = default_lifetime(sdata); - ttl = sdata->u.mesh.mshcfg.dot11MeshTTL; + ttl = sdata->u.mesh.mshcfg.element_ttl; if (ttl == 0) { sdata->u.mesh.mshstats.dropped_frames_ttl++; spin_unlock_bh(&mpath->state_lock); @@ -1013,5 +1013,6 @@ mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata) mesh_path_sel_frame_tx(MPATH_RANN, 0, sdata->vif.addr, cpu_to_le32(++ifmsh->sn), 0, NULL, 0, broadcast_addr, - 0, MESH_TTL, 0, 0, 0, sdata); + 0, sdata->u.mesh.mshcfg.element_ttl, + 0, 0, 0, sdata); } diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 349e466..8d65b47 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -467,8 +467,8 @@ void mesh_plink_broken(struct sta_info *sta) mpath->flags &= ~MESH_PATH_ACTIVE; ++mpath->sn; spin_unlock_bh(&mpath->state_lock); - mesh_path_error_tx(MESH_TTL, mpath->dst, - cpu_to_le32(mpath->sn), + mesh_path_error_tx(sdata->u.mesh.mshcfg.element_ttl, + mpath->dst, cpu_to_le32(mpath->sn), cpu_to_le16(PERR_RCODE_DEST_UNREACH), bcast, sdata); } else @@ -614,7 +614,8 @@ void mesh_path_discard_frame(struct sk_buff *skb, mpath = mesh_path_lookup(da, sdata); if (mpath) sn = ++mpath->sn; - mesh_path_error_tx(MESH_TTL, skb->data, cpu_to_le32(sn), + mesh_path_error_tx(sdata->u.mesh.mshcfg.element_ttl, skb->data, + cpu_to_le32(sn), cpu_to_le16(PERR_RCODE_NO_ROUTE), ra, sdata); } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index a3a9421..45fbb9e 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -28,13 +28,19 @@ #include "rate.h" #include "led.h" +#define IEEE80211_MAX_NULLFUNC_TRIES 2 #define IEEE80211_MAX_PROBE_TRIES 5 /* - * beacon loss detection timeout - * XXX: should depend on beacon interval + * Beacon loss timeout is calculated as N frames times the + * advertised beacon interval. This may need to be somewhat + * higher than what hardware might detect to account for + * delays in the host processing frames. But since we also + * probe on beacon miss before declaring the connection lost + * default to what we want. */ -#define IEEE80211_BEACON_LOSS_TIME (2 * HZ) +#define IEEE80211_BEACON_LOSS_COUNT 7 + /* * Time the connection can be idle before we probe * it to see if we can still talk to the AP. @@ -121,7 +127,7 @@ void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata) return; mod_timer(&sdata->u.mgd.bcn_mon_timer, - round_jiffies_up(jiffies + IEEE80211_BEACON_LOSS_TIME)); + round_jiffies_up(jiffies + sdata->u.mgd.beacon_timeout)); } void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata) @@ -619,11 +625,12 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) /* * Go to full PSM if the user configures a very low * latency requirement. - * The 2 second value is there for compatibility until - * the PM_QOS_NETWORK_LATENCY is configured with real - * values. + * The 2000 second value is there for compatibility + * until the PM_QOS_NETWORK_LATENCY is configured + * with real values. */ - if (latency > 1900000000 && latency != 2000000000) + if (latency > (1900 * USEC_PER_MSEC) && + latency != (2000 * USEC_PER_SEC)) timeout = 0; else timeout = 100; @@ -871,6 +878,9 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, bss_info_changed |= ieee80211_handle_bss_capability(sdata, cbss->capability, bss->has_erp_value, bss->erp_value); + sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec( + IEEE80211_BEACON_LOSS_COUNT * bss_conf->beacon_int)); + sdata->u.mgd.associated = cbss; memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN); @@ -1026,6 +1036,54 @@ void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, ieee80211_sta_reset_conn_monitor(sdata); } +static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + if (!(ifmgd->flags & (IEEE80211_STA_BEACON_POLL | + IEEE80211_STA_CONNECTION_POLL))) + return; + + ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL | + IEEE80211_STA_BEACON_POLL); + mutex_lock(&sdata->local->iflist_mtx); + ieee80211_recalc_ps(sdata->local, -1); + mutex_unlock(&sdata->local->iflist_mtx); + + if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR) + return; + + /* + * We've received a probe response, but are not sure whether + * we have or will be receiving any beacons or data, so let's + * schedule the timers again, just in case. + */ + ieee80211_sta_reset_beacon_monitor(sdata); + + mod_timer(&ifmgd->conn_mon_timer, + round_jiffies_up(jiffies + + IEEE80211_CONNECTION_IDLE_TIME)); +} + +void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, + struct ieee80211_hdr *hdr, bool ack) +{ + if (!ieee80211_is_data(hdr->frame_control)) + return; + + if (ack) + ieee80211_sta_reset_conn_monitor(sdata); + + if (ieee80211_is_nullfunc(hdr->frame_control) && + sdata->u.mgd.probe_send_count > 0) { + if (ack) + sdata->u.mgd.probe_send_count = 0; + else + sdata->u.mgd.nullfunc_failed = true; + ieee80211_queue_work(&sdata->local->hw, &sdata->work); + } +} + static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; @@ -1041,8 +1099,20 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) if (ifmgd->probe_send_count >= unicast_limit) dst = NULL; - ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID); - ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid[1], NULL, 0); + /* + * When the hardware reports an accurate Tx ACK status, it's + * better to send a nullfunc frame instead of a probe request, + * as it will kick us off the AP quickly if we aren't associated + * anymore. The timeout will be reset if the frame is ACKed by + * the AP. + */ + if (sdata->local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) { + ifmgd->nullfunc_failed = false; + ieee80211_send_nullfunc(sdata->local, sdata, 0); + } else { + ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID); + ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid[1], NULL, 0); + } ifmgd->probe_send_count++; ifmgd->probe_timeout = jiffies + IEEE80211_PROBE_WAIT; @@ -1108,6 +1178,30 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, mutex_unlock(&ifmgd->mtx); } +struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct sk_buff *skb; + const u8 *ssid; + + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) + return NULL; + + ASSERT_MGD_MTX(ifmgd); + + if (!ifmgd->associated) + return NULL; + + ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID); + skb = ieee80211_build_probe_req(sdata, ifmgd->associated->bssid, + ssid + 2, ssid[1], NULL, 0); + + return skb; +} +EXPORT_SYMBOL(ieee80211_ap_probereq_get); + static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; @@ -1485,29 +1579,8 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false); if (ifmgd->associated && - memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN) == 0 && - ifmgd->flags & (IEEE80211_STA_BEACON_POLL | - IEEE80211_STA_CONNECTION_POLL)) { - ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL | - IEEE80211_STA_BEACON_POLL); - mutex_lock(&sdata->local->iflist_mtx); - ieee80211_recalc_ps(sdata->local, -1); - mutex_unlock(&sdata->local->iflist_mtx); - - if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR) - return; - - /* - * We've received a probe response, but are not sure whether - * we have or will be receiving any beacons or data, so let's - * schedule the timers again, just in case. - */ - ieee80211_sta_reset_beacon_monitor(sdata); - - mod_timer(&ifmgd->conn_mon_timer, - round_jiffies_up(jiffies + - IEEE80211_CONNECTION_IDLE_TIME)); - } + memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN) == 0) + ieee80211_reset_ap_probe(sdata); } /* @@ -1845,6 +1918,31 @@ static void ieee80211_sta_timer(unsigned long data) ieee80211_queue_work(&local->hw, &sdata->work); } +static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, + u8 *bssid) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL | + IEEE80211_STA_BEACON_POLL); + + ieee80211_set_disassoc(sdata, true, true); + mutex_unlock(&ifmgd->mtx); + mutex_lock(&local->mtx); + ieee80211_recalc_idle(local); + mutex_unlock(&local->mtx); + /* + * must be outside lock due to cfg80211, + * but that's not a problem. + */ + ieee80211_send_deauth_disassoc(sdata, bssid, + IEEE80211_STYPE_DEAUTH, + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, + NULL, true); + mutex_lock(&ifmgd->mtx); +} + void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; @@ -1857,12 +1955,49 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) IEEE80211_STA_CONNECTION_POLL) && ifmgd->associated) { u8 bssid[ETH_ALEN]; + int max_tries; memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN); - if (time_is_after_jiffies(ifmgd->probe_timeout)) - run_again(ifmgd, ifmgd->probe_timeout); - else if (ifmgd->probe_send_count < IEEE80211_MAX_PROBE_TRIES) { + if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) + max_tries = IEEE80211_MAX_NULLFUNC_TRIES; + else + max_tries = IEEE80211_MAX_PROBE_TRIES; + + /* ACK received for nullfunc probing frame */ + if (!ifmgd->probe_send_count) + ieee80211_reset_ap_probe(sdata); + else if (ifmgd->nullfunc_failed) { + if (ifmgd->probe_send_count < max_tries) { +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + wiphy_debug(local->hw.wiphy, + "%s: No ack for nullfunc frame to" + " AP %pM, try %d\n", + sdata->name, bssid, + ifmgd->probe_send_count); +#endif + ieee80211_mgd_probe_ap_send(sdata); + } else { +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + wiphy_debug(local->hw.wiphy, + "%s: No ack for nullfunc frame to" + " AP %pM, disconnecting.\n", + sdata->name, bssid); +#endif + ieee80211_sta_connection_lost(sdata, bssid); + } + } else if (time_is_after_jiffies(ifmgd->probe_timeout)) + run_again(ifmgd, ifmgd->probe_timeout); + else if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) { +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + wiphy_debug(local->hw.wiphy, + "%s: Failed to send nullfunc to AP %pM" + " after %dms, disconnecting.\n", + sdata->name, + bssid, (1000 * IEEE80211_PROBE_WAIT)/HZ); +#endif + ieee80211_sta_connection_lost(sdata, bssid); + } else if (ifmgd->probe_send_count < max_tries) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG wiphy_debug(local->hw.wiphy, "%s: No probe response from AP %pM" @@ -1877,27 +2012,13 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) * We actually lost the connection ... or did we? * Let's make sure! */ - ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL | - IEEE80211_STA_BEACON_POLL); wiphy_debug(local->hw.wiphy, "%s: No probe response from AP %pM" " after %dms, disconnecting.\n", sdata->name, bssid, (1000 * IEEE80211_PROBE_WAIT)/HZ); - ieee80211_set_disassoc(sdata, true, true); - mutex_unlock(&ifmgd->mtx); - mutex_lock(&local->mtx); - ieee80211_recalc_idle(local); - mutex_unlock(&local->mtx); - /* - * must be outside lock due to cfg80211, - * but that's not a problem. - */ - ieee80211_send_deauth_disassoc(sdata, bssid, - IEEE80211_STYPE_DEAUTH, - WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, - NULL, true); - mutex_lock(&ifmgd->mtx); + + ieee80211_sta_connection_lost(sdata, bssid); } } @@ -1988,6 +2109,8 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) add_timer(&ifmgd->timer); if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running)) add_timer(&ifmgd->chswitch_timer); + ieee80211_sta_reset_beacon_monitor(sdata); + ieee80211_restart_sta_timer(sdata); } #endif diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 33f7699..3d5a2cb 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -211,7 +211,8 @@ static bool rc_no_data_or_no_ack(struct ieee80211_tx_rate_control *txrc) return (info->flags & IEEE80211_TX_CTL_NO_ACK) || !ieee80211_is_data(fc); } -static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u8 max_rate_idx) +static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, + struct ieee80211_supported_band *sband) { u8 i; @@ -222,7 +223,7 @@ static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u8 max_rate_idx) if (basic_rates & (1 << *idx)) return; /* selected rate is a basic rate */ - for (i = *idx + 1; i <= max_rate_idx; i++) { + for (i = *idx + 1; i <= sband->n_bitrates; i++) { if (basic_rates & (1 << i)) { *idx = i; return; @@ -237,16 +238,25 @@ bool rate_control_send_low(struct ieee80211_sta *sta, struct ieee80211_tx_rate_control *txrc) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb); + struct ieee80211_supported_band *sband = txrc->sband; + int mcast_rate; if (!sta || !priv_sta || rc_no_data_or_no_ack(txrc)) { info->control.rates[0].idx = rate_lowest_index(txrc->sband, sta); info->control.rates[0].count = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 1 : txrc->hw->max_rate_tries; - if (!sta && txrc->ap) + if (!sta && txrc->bss) { + mcast_rate = txrc->bss_conf->mcast_rate[sband->band]; + if (mcast_rate > 0) { + info->control.rates[0].idx = mcast_rate - 1; + return true; + } + rc_send_low_broadcast(&info->control.rates[0].idx, txrc->bss_conf->basic_rates, - txrc->sband->n_bitrates); + sband); + } return true; } return false; diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index 2a18d66..4ad7a36 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -371,6 +371,9 @@ minstrel_aggr_check(struct minstrel_priv *mp, struct ieee80211_sta *pubsta, stru if (likely(sta->ampdu_mlme.tid_tx[tid])) return; + if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO) + return; + ieee80211_start_tx_ba_session(pubsta, tid); } @@ -407,8 +410,8 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband, mi->ampdu_len += info->status.ampdu_len; if (!mi->sample_wait && !mi->sample_tries && mi->sample_count > 0) { - mi->sample_wait = 4 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len); - mi->sample_tries = 3; + mi->sample_wait = 16 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len); + mi->sample_tries = 2; mi->sample_count--; } @@ -506,7 +509,9 @@ minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, if (!mr->retry_updated) minstrel_calc_retransmit(mp, mi, index); - if (mr->probability < MINSTREL_FRAC(20, 100)) + if (sample) + rate->count = 1; + else if (mr->probability < MINSTREL_FRAC(20, 100)) rate->count = 2; else if (rtscts) rate->count = mr->retry_count_rtscts; @@ -562,7 +567,7 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) */ if (minstrel_get_duration(sample_idx) > minstrel_get_duration(mi->max_tp_rate)) { - if (mr->sample_skipped < 10) + if (mr->sample_skipped < 20) goto next; if (mi->sample_slow++ > 2) @@ -586,6 +591,7 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, struct minstrel_ht_sta *mi = &msp->ht; struct minstrel_priv *mp = priv; int sample_idx; + bool sample = false; if (rate_control_send_low(sta, priv_sta, txrc)) return; @@ -596,10 +602,11 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, info->flags |= mi->tx_flags; sample_idx = minstrel_get_sample_rate(mp, mi); if (sample_idx >= 0) { + sample = true; minstrel_ht_set_rate(mp, mi, &ar[0], sample_idx, txrc, true, false); minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate, - txrc, false, true); + txrc, false, false); info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE; } else { minstrel_ht_set_rate(mp, mi, &ar[0], mi->max_tp_rate, @@ -607,7 +614,7 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate2, txrc, false, true); } - minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate, txrc, false, true); + minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate, txrc, false, !sample); ar[3].count = 0; ar[3].idx = -1; diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 54fb4a0e..2fe8f5f 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -538,6 +538,8 @@ static void ieee80211_release_reorder_frame(struct ieee80211_hw *hw, { struct sk_buff *skb = tid_agg_rx->reorder_buf[index]; + lockdep_assert_held(&tid_agg_rx->reorder_lock); + if (!skb) goto no_frame; @@ -557,6 +559,8 @@ static void ieee80211_release_reorder_frames(struct ieee80211_hw *hw, { int index; + lockdep_assert_held(&tid_agg_rx->reorder_lock); + while (seq_less(tid_agg_rx->head_seq_num, head_seq_num)) { index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) % tid_agg_rx->buf_size; @@ -581,6 +585,8 @@ static void ieee80211_sta_reorder_release(struct ieee80211_hw *hw, { int index, j; + lockdep_assert_held(&tid_agg_rx->reorder_lock); + /* release the buffer until next missing frame */ index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) % tid_agg_rx->buf_size; @@ -683,10 +689,11 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, int index; bool ret = true; + spin_lock(&tid_agg_rx->reorder_lock); + buf_size = tid_agg_rx->buf_size; head_seq_num = tid_agg_rx->head_seq_num; - spin_lock(&tid_agg_rx->reorder_lock); /* frame with out of date sequence number */ if (seq_less(mpdu_seq_num, head_seq_num)) { dev_kfree_skb(skb); @@ -1102,8 +1109,6 @@ static void ap_sta_ps_end(struct sta_info *sta) atomic_dec(&sdata->bss->num_sta_ps); - clear_sta_flags(sta, WLAN_STA_PS_STA); - #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG printk(KERN_DEBUG "%s: STA %pM aid %d exits power save mode\n", sdata->name, sta->sta.addr, sta->sta.aid); @@ -1158,6 +1163,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) sta->rx_fragments++; sta->rx_bytes += rx->skb->len; sta->last_signal = status->signal; + ewma_add(&sta->avg_signal, -status->signal); /* * Change STA power saving mode only at the end of a frame @@ -1872,9 +1878,8 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) dev->stats.rx_packets++; dev->stats.rx_bytes += rx->skb->len; - if (ieee80211_is_data(hdr->frame_control) && - !is_multicast_ether_addr(hdr->addr1) && - local->hw.conf.dynamic_ps_timeout > 0 && local->ps_sdata) { + if (local->ps_sdata && local->hw.conf.dynamic_ps_timeout > 0 && + !is_multicast_ether_addr(((struct ethhdr *)rx->skb->data)->h_dest)) { mod_timer(&local->dynamic_ps_timer, jiffies + msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout)); } @@ -1923,9 +1928,12 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) mod_timer(&tid_agg_rx->session_timer, TU_TO_EXP_TIME(tid_agg_rx->timeout)); + spin_lock(&tid_agg_rx->reorder_lock); /* release stored frames up to start of BAR */ ieee80211_release_reorder_frames(hw, tid_agg_rx, start_seq_num, frames); + spin_unlock(&tid_agg_rx->reorder_lock); + kfree_skb(skb); return RX_QUEUED; } @@ -2521,9 +2529,8 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_rx_data *rx) } /* - * This function makes calls into the RX path. Therefore the - * caller must hold the sta_info->lock and everything has to - * be under rcu_read_lock protection as well. + * This function makes calls into the RX path, therefore + * it has to be invoked under RCU read lock. */ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid) { diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 6d8f897..c426504 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -199,8 +199,11 @@ static void sta_unblock(struct work_struct *wk) if (!test_sta_flags(sta, WLAN_STA_PS_STA)) ieee80211_sta_ps_deliver_wakeup(sta); - else if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL)) + else if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL)) { + clear_sta_flags(sta, WLAN_STA_PS_DRIVER); ieee80211_sta_ps_deliver_poll_response(sta); + } else + clear_sta_flags(sta, WLAN_STA_PS_DRIVER); } static int sta_prepare_rate_control(struct ieee80211_local *local, @@ -241,6 +244,8 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, sta->local = local; sta->sdata = sdata; + ewma_init(&sta->avg_signal, 1024, 8); + if (sta_prepare_rate_control(local, sta, gfp)) { kfree(sta); return NULL; @@ -880,6 +885,13 @@ struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_vif *vif, } EXPORT_SYMBOL(ieee80211_find_sta); +static void clear_sta_ps_flags(void *_sta) +{ + struct sta_info *sta = _sta; + + clear_sta_flags(sta, WLAN_STA_PS_DRIVER | WLAN_STA_PS_STA); +} + /* powersave support code */ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) { @@ -894,7 +906,8 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) /* Send all buffered frames to the station */ sent = ieee80211_add_pending_skbs(local, &sta->tx_filtered); - buffered = ieee80211_add_pending_skbs(local, &sta->ps_tx_buf); + buffered = ieee80211_add_pending_skbs_fn(local, &sta->ps_tx_buf, + clear_sta_ps_flags, sta); sent += buffered; local->total_ps_buffered -= buffered; @@ -973,7 +986,7 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw, if (block) set_sta_flags(sta, WLAN_STA_PS_DRIVER); - else + else if (test_sta_flags(sta, WLAN_STA_PS_DRIVER)) ieee80211_queue_work(hw, &sta->drv_unblock_wk); } EXPORT_SYMBOL(ieee80211_sta_block_awake); diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 9265aca..fdca52c 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -13,6 +13,7 @@ #include <linux/types.h> #include <linux/if_ether.h> #include <linux/workqueue.h> +#include <linux/average.h> #include "key.h" /** @@ -81,13 +82,14 @@ enum ieee80211_sta_info_flags { * @stop_initiator: initiator of a session stop * @tx_stop: TX DelBA frame when stopping * - * This structure is protected by RCU and the per-station - * spinlock. Assignments to the array holding it must hold - * the spinlock, only the TX path can access it under RCU - * lock-free if, and only if, the state has the flag - * %HT_AGG_STATE_OPERATIONAL set. Otherwise, the TX path - * must also acquire the spinlock and re-check the state, - * see comments in the tx code touching it. + * This structure's lifetime is managed by RCU, assignments to + * the array holding it must hold the aggregation mutex. + * + * The TX path can access it under RCU lock-free if, and + * only if, the state has the flag %HT_AGG_STATE_OPERATIONAL + * set. Otherwise, the TX path must also acquire the spinlock + * and re-check the state, see comments in the tx code + * touching it. */ struct tid_ampdu_tx { struct rcu_head rcu_head; @@ -115,15 +117,13 @@ struct tid_ampdu_tx { * @rcu_head: RCU head used for freeing this struct * @reorder_lock: serializes access to reorder buffer, see below. * - * This structure is protected by RCU and the per-station - * spinlock. Assignments to the array holding it must hold - * the spinlock. + * This structure's lifetime is managed by RCU, assignments to + * the array holding it must hold the aggregation mutex. * - * The @reorder_lock is used to protect the variables and - * arrays such as @reorder_buf, @reorder_time, @head_seq_num, - * @stored_mpdu_num and @reorder_time from being corrupted by - * concurrent access of the RX path and the expired frame - * release timer. + * The @reorder_lock is used to protect the members of this + * struct, except for @timeout, @buf_size and @dialog_token, + * which are constant across the lifetime of the struct (the + * dialog token being used only for debugging). */ struct tid_ampdu_rx { struct rcu_head rcu_head; @@ -224,6 +224,7 @@ enum plink_state { * @rx_fragments: number of received MPDUs * @rx_dropped: number of dropped MPDUs from this STA * @last_signal: signal of last received frame from this STA + * @avg_signal: moving average of signal of received frames from this STA * @last_seq_ctrl: last received seq/frag number from this STA (per RX queue) * @tx_filtered_count: number of frames the hardware filtered for this STA * @tx_retry_failed: number of frames that failed retry @@ -248,6 +249,7 @@ enum plink_state { * @sta: station information we share with the driver * @dead: set to true when sta is unlinked * @uploaded: set to true when sta is uploaded to the driver + * @lost_packets: number of consecutive lost packets */ struct sta_info { /* General information, mostly static */ @@ -291,6 +293,7 @@ struct sta_info { unsigned long rx_fragments; unsigned long rx_dropped; int last_signal; + struct ewma avg_signal; __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES]; /* Updated from TX status path only, no locking requirements */ @@ -335,6 +338,8 @@ struct sta_info { } debugfs; #endif + unsigned int lost_packets; + /* keep last! */ struct ieee80211_sta sta; }; diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 3153c19..38a7972 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -157,6 +157,15 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb) } } +/* + * Use a static threshold for now, best value to be determined + * by testing ... + * Should it depend on: + * - on # of retransmissions + * - current throughput (higher value for higher tpt)? + */ +#define STA_LOST_PKT_THRESHOLD 50 + void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) { struct sk_buff *skb2; @@ -173,6 +182,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) int retry_count = -1, i; int rates_idx = -1; bool send_to_cooked; + bool acked; for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { /* the HW cannot have attempted that rate */ @@ -198,8 +208,8 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) if (memcmp(hdr->addr2, sta->sdata->vif.addr, ETH_ALEN)) continue; - if (!(info->flags & IEEE80211_TX_STAT_ACK) && - test_sta_flags(sta, WLAN_STA_PS_STA)) { + acked = !!(info->flags & IEEE80211_TX_STAT_ACK); + if (!acked && test_sta_flags(sta, WLAN_STA_PS_STA)) { /* * The STA is in power save mode, so assume * that this TX packet failed because of that. @@ -231,7 +241,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) rcu_read_unlock(); return; } else { - if (!(info->flags & IEEE80211_TX_STAT_ACK)) + if (!acked) sta->tx_retry_failed++; sta->tx_retry_count += retry_count; } @@ -240,9 +250,25 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) if (ieee80211_vif_is_mesh(&sta->sdata->vif)) ieee80211s_update_metric(local, sta, skb); - if (!(info->flags & IEEE80211_TX_CTL_INJECTED) && - (info->flags & IEEE80211_TX_STAT_ACK)) + if (!(info->flags & IEEE80211_TX_CTL_INJECTED) && acked) ieee80211_frame_acked(sta, skb); + + if ((sta->sdata->vif.type == NL80211_IFTYPE_STATION) && + (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)) + ieee80211_sta_tx_notify(sta->sdata, (void *) skb->data, acked); + + if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) { + if (info->flags & IEEE80211_TX_STAT_ACK) { + if (sta->lost_packets) + sta->lost_packets = 0; + } else if (++sta->lost_packets >= STA_LOST_PKT_THRESHOLD) { + cfg80211_cqm_pktloss_notify(sta->sdata->dev, + sta->sta.addr, + sta->lost_packets, + GFP_ATOMIC); + sta->lost_packets = 0; + } + } } rcu_read_unlock(); @@ -295,10 +321,23 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) msecs_to_jiffies(10)); } - if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) + if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) { + struct ieee80211_work *wk; + + rcu_read_lock(); + list_for_each_entry_rcu(wk, &local->work_list, list) { + if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX) + continue; + if (wk->offchan_tx.frame != skb) + continue; + wk->offchan_tx.frame = NULL; + break; + } + rcu_read_unlock(); cfg80211_mgmt_tx_status( skb->dev, (unsigned long) skb, skb->data, skb->len, !!(info->flags & IEEE80211_TX_STAT_ACK), GFP_ATOMIC); + } /* this was a transmitted frame, but now we want to reuse it */ skb_orphan(skb); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 7a637b8..0ee56bb 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -622,7 +622,8 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx) txrc.max_rate_idx = -1; else txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1; - txrc.ap = tx->sdata->vif.type == NL80211_IFTYPE_AP; + txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP || + tx->sdata->vif.type == NL80211_IFTYPE_ADHOC); /* set up RTS protection if desired */ if (len > tx->local->hw.wiphy->rts_threshold) { @@ -665,10 +666,11 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx) if (unlikely(info->control.rates[0].idx < 0)) return TX_DROP; - if (txrc.reported_rate.idx < 0) + if (txrc.reported_rate.idx < 0) { txrc.reported_rate = info->control.rates[0]; - - if (tx->sta) + if (tx->sta && ieee80211_is_data(hdr->frame_control)) + tx->sta->last_tx_rate = txrc.reported_rate; + } else if (tx->sta) tx->sta->last_tx_rate = txrc.reported_rate; if (unlikely(!info->control.rates[0].count)) @@ -1033,6 +1035,7 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, struct ieee80211_radiotap_header *rthdr = (struct ieee80211_radiotap_header *) skb->data; struct ieee80211_supported_band *sband; + bool hw_frag; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len, NULL); @@ -1042,6 +1045,9 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; tx->flags &= ~IEEE80211_TX_FRAGMENTED; + /* packet is fragmented in HW if we have a non-NULL driver callback */ + hw_frag = (tx->local->ops->set_frag_threshold != NULL); + /* * for every radiotap entry that is present * (ieee80211_radiotap_iterator_next returns -ENOENT when no more @@ -1078,7 +1084,8 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, } if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP) info->flags &= ~IEEE80211_TX_INTFL_DONT_ENCRYPT; - if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG) + if ((*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG) && + !hw_frag) tx->flags |= IEEE80211_TX_FRAGMENTED; break; @@ -1181,8 +1188,10 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, /* * Set this flag (used below to indicate "automatic fragmentation"), * it will be cleared/left by radiotap as desired. + * Only valid when fragmentation is done by the stack. */ - tx->flags |= IEEE80211_TX_FRAGMENTED; + if (!local->ops->set_frag_threshold) + tx->flags |= IEEE80211_TX_FRAGMENTED; /* process and remove the injection radiotap header */ if (unlikely(info->flags & IEEE80211_TX_INTFL_HAS_RADIOTAP)) { @@ -2321,7 +2330,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, txrc.max_rate_idx = -1; else txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1; - txrc.ap = true; + txrc.bss = true; rate_control_get_rate(sdata, NULL, &txrc); info->control.vif = vif; diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 0b6fc92..e497476 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -368,8 +368,9 @@ void ieee80211_add_pending_skb(struct ieee80211_local *local, spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); } -int ieee80211_add_pending_skbs(struct ieee80211_local *local, - struct sk_buff_head *skbs) +int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, + struct sk_buff_head *skbs, + void (*fn)(void *data), void *data) { struct ieee80211_hw *hw = &local->hw; struct sk_buff *skb; @@ -394,6 +395,9 @@ int ieee80211_add_pending_skbs(struct ieee80211_local *local, __skb_queue_tail(&local->pending[queue], skb); } + if (fn) + fn(data); + for (i = 0; i < hw->queues; i++) __ieee80211_wake_queue(hw, i, IEEE80211_QUEUE_STOP_REASON_SKB_ADD); @@ -402,6 +406,12 @@ int ieee80211_add_pending_skbs(struct ieee80211_local *local, return ret; } +int ieee80211_add_pending_skbs(struct ieee80211_local *local, + struct sk_buff_head *skbs) +{ + return ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL); +} + void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, enum queue_stop_reason reason) { @@ -1011,9 +1021,10 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, return pos - buffer; } -void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, - const u8 *ssid, size_t ssid_len, - const u8 *ie, size_t ie_len) +struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, + u8 *dst, + const u8 *ssid, size_t ssid_len, + const u8 *ie, size_t ie_len) { struct ieee80211_local *local = sdata->local; struct sk_buff *skb; @@ -1027,7 +1038,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, if (!buf) { printk(KERN_DEBUG "%s: failed to allocate temporary IE " "buffer\n", sdata->name); - return; + return NULL; } chan = ieee80211_frequency_to_channel( @@ -1050,8 +1061,20 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, } IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; - ieee80211_tx_skb(sdata, skb); kfree(buf); + + return skb; +} + +void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, + const u8 *ssid, size_t ssid_len, + const u8 *ie, size_t ie_len) +{ + struct sk_buff *skb; + + skb = ieee80211_build_probe_req(sdata, dst, ssid, ssid_len, ie, ie_len); + if (skb) + ieee80211_tx_skb(sdata, skb); } u32 ieee80211_sta_get_rates(struct ieee80211_local *local, @@ -1152,6 +1175,9 @@ int ieee80211_reconfig(struct ieee80211_local *local) } mutex_unlock(&local->sta_mtx); + /* setup fragmentation threshold */ + drv_set_frag_threshold(local, hw->wiphy->frag_threshold); + /* setup RTS threshold */ drv_set_rts_threshold(local, hw->wiphy->rts_threshold); diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c index 34e6d02..58e75bb 100644 --- a/net/mac80211/wme.c +++ b/net/mac80211/wme.c @@ -21,7 +21,16 @@ /* Default mapping in classifier to work with default * queue setup. */ -const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 }; +const int ieee802_1d_to_ac[8] = { + IEEE80211_AC_BE, + IEEE80211_AC_BK, + IEEE80211_AC_BK, + IEEE80211_AC_BE, + IEEE80211_AC_VI, + IEEE80211_AC_VI, + IEEE80211_AC_VO, + IEEE80211_AC_VO +}; static int wme_downgrade_ac(struct sk_buff *skb) { diff --git a/net/mac80211/work.c b/net/mac80211/work.c index ae344d1..de43753 100644 --- a/net/mac80211/work.c +++ b/net/mac80211/work.c @@ -458,8 +458,9 @@ ieee80211_direct_probe(struct ieee80211_work *wk) return WORK_ACT_TIMEOUT; } - printk(KERN_DEBUG "%s: direct probe to %pM (try %d)\n", - sdata->name, wk->filter_ta, wk->probe_auth.tries); + printk(KERN_DEBUG "%s: direct probe to %pM (try %d/%i)\n", + sdata->name, wk->filter_ta, wk->probe_auth.tries, + IEEE80211_AUTH_MAX_TRIES); /* * Direct probe is sent to broadcast address as some APs @@ -561,6 +562,25 @@ ieee80211_remain_on_channel_timeout(struct ieee80211_work *wk) } static enum work_action __must_check +ieee80211_offchannel_tx(struct ieee80211_work *wk) +{ + if (!wk->started) { + wk->timeout = jiffies + msecs_to_jiffies(wk->offchan_tx.wait); + + /* + * After this, offchan_tx.frame remains but now is no + * longer a valid pointer -- we still need it as the + * cookie for canceling this work. + */ + ieee80211_tx_skb(wk->sdata, wk->offchan_tx.frame); + + return WORK_ACT_NONE; + } + + return WORK_ACT_TIMEOUT; +} + +static enum work_action __must_check ieee80211_assoc_beacon_wait(struct ieee80211_work *wk) { if (wk->started) @@ -955,6 +975,9 @@ static void ieee80211_work_work(struct work_struct *work) case IEEE80211_WORK_REMAIN_ON_CHANNEL: rma = ieee80211_remain_on_channel_timeout(wk); break; + case IEEE80211_WORK_OFFCHANNEL_TX: + rma = ieee80211_offchannel_tx(wk); + break; case IEEE80211_WORK_ASSOC_BEACON_WAIT: rma = ieee80211_assoc_beacon_wait(wk); break; |