diff options
Diffstat (limited to 'net/mac80211/cfg.c')
-rw-r--r-- | net/mac80211/cfg.c | 713 |
1 files changed, 548 insertions, 165 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index c7000a6ca379..4bc8a9250cfd 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -19,52 +19,26 @@ #include "rate.h" #include "mesh.h" -static bool nl80211_type_check(enum nl80211_iftype type) -{ - switch (type) { - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_STATION: - case NL80211_IFTYPE_MONITOR: -#ifdef CONFIG_MAC80211_MESH - case NL80211_IFTYPE_MESH_POINT: -#endif - case NL80211_IFTYPE_AP: - case NL80211_IFTYPE_AP_VLAN: - case NL80211_IFTYPE_WDS: - return true; - default: - return false; - } -} - -static bool nl80211_params_check(enum nl80211_iftype type, - struct vif_params *params) -{ - if (!nl80211_type_check(type)) - return false; - - return true; -} - -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; struct ieee80211_sub_if_data *sdata; int err; - if (!nl80211_params_check(type, params)) - return -EINVAL; - 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) @@ -82,21 +56,10 @@ static int ieee80211_change_iface(struct wiphy *wiphy, struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); int ret; - if (ieee80211_sdata_running(sdata)) - return -EBUSY; - - if (!nl80211_params_check(type, params)) - return -EINVAL; - ret = ieee80211_if_change_type(sdata, type); 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); @@ -104,69 +67,95 @@ static int ieee80211_change_iface(struct wiphy *wiphy, params && params->use_4addr >= 0) sdata->u.mgd.use_4addr = params->use_4addr; - if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) - sdata->u.mntr_flags = *flags; + if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { + struct ieee80211_local *local = sdata->local; + + if (ieee80211_sdata_running(sdata)) { + /* + * Prohibit MONITOR_FLAG_COOK_FRAMES to be + * changed while the interface is up. + * Else we would need to add a lot of cruft + * to update everything: + * cooked_mntrs, monitor and all fif_* counters + * reconfigure hardware + */ + if ((*flags & MONITOR_FLAG_COOK_FRAMES) != + (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)) + return -EBUSY; + + ieee80211_adjust_monitor_flags(sdata, -1); + sdata->u.mntr_flags = *flags; + ieee80211_adjust_monitor_flags(sdata, 1); + + ieee80211_configure_filter(local); + } else { + /* + * Because the interface is down, ieee80211_do_stop + * and ieee80211_do_open take care of "everything" + * mentioned in the comment above. + */ + sdata->u.mntr_flags = *flags; + } + } return 0; } static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx, const u8 *mac_addr, + u8 key_idx, bool pairwise, const u8 *mac_addr, struct key_params *params) { - struct ieee80211_sub_if_data *sdata; + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct sta_info *sta = NULL; - enum ieee80211_key_alg alg; struct ieee80211_key *key; int err; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); + if (!ieee80211_sdata_running(sdata)) + return -ENETDOWN; + /* reject WEP and TKIP keys if WEP failed to initialize */ switch (params->cipher) { case WLAN_CIPHER_SUITE_WEP40: - case WLAN_CIPHER_SUITE_WEP104: - alg = ALG_WEP; - break; case WLAN_CIPHER_SUITE_TKIP: - alg = ALG_TKIP; - break; - case WLAN_CIPHER_SUITE_CCMP: - alg = ALG_CCMP; - break; - case WLAN_CIPHER_SUITE_AES_CMAC: - alg = ALG_AES_CMAC; + case WLAN_CIPHER_SUITE_WEP104: + if (IS_ERR(sdata->local->wep_tx_tfm)) + return -EINVAL; break; default: - return -EINVAL; + break; } - key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key, - params->seq_len, params->seq); - if (!key) - return -ENOMEM; + key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, + params->key, params->seq_len, params->seq); + if (IS_ERR(key)) + return PTR_ERR(key); - rcu_read_lock(); + if (pairwise) + key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; + + mutex_lock(&sdata->local->sta_mtx); if (mac_addr) { sta = sta_info_get_bss(sdata, mac_addr); if (!sta) { - ieee80211_key_free(key); + ieee80211_key_free(sdata->local, key); err = -ENOENT; goto out_unlock; } } - ieee80211_key_link(key, sdata, sta); + err = ieee80211_key_link(key, sdata, sta); + if (err) + ieee80211_key_free(sdata->local, key); - err = 0; out_unlock: - rcu_read_unlock(); + mutex_unlock(&sdata->local->sta_mtx); return err; } static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx, const u8 *mac_addr) + u8 key_idx, bool pairwise, const u8 *mac_addr) { struct ieee80211_sub_if_data *sdata; struct sta_info *sta; @@ -174,7 +163,7 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, sdata = IEEE80211_DEV_TO_SUB_IF(dev); - rcu_read_lock(); + mutex_lock(&sdata->local->sta_mtx); if (mac_addr) { ret = -ENOENT; @@ -183,10 +172,17 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, if (!sta) goto out_unlock; - if (sta->key) { - ieee80211_key_free(sta->key); - WARN_ON(sta->key); - ret = 0; + if (pairwise) { + if (sta->ptk) { + ieee80211_key_free(sdata->local, sta->ptk); + ret = 0; + } + } else { + if (sta->gtk[key_idx]) { + ieee80211_key_free(sdata->local, + sta->gtk[key_idx]); + ret = 0; + } } goto out_unlock; @@ -197,18 +193,19 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, goto out_unlock; } - ieee80211_key_free(sdata->keys[key_idx]); + ieee80211_key_free(sdata->local, sdata->keys[key_idx]); WARN_ON(sdata->keys[key_idx]); ret = 0; out_unlock: - rcu_read_unlock(); + mutex_unlock(&sdata->local->sta_mtx); return ret; } static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx, const u8 *mac_addr, void *cookie, + u8 key_idx, bool pairwise, const u8 *mac_addr, + void *cookie, void (*callback)(void *cookie, struct key_params *params)) { @@ -216,7 +213,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, struct sta_info *sta = NULL; u8 seq[6] = {0}; struct key_params params; - struct ieee80211_key *key; + struct ieee80211_key *key = NULL; u32 iv32; u16 iv16; int err = -ENOENT; @@ -230,7 +227,10 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, if (!sta) goto out; - key = sta->key; + if (pairwise) + key = sta->ptk; + else if (key_idx < NUM_DEFAULT_KEYS) + key = sta->gtk[key_idx]; } else key = sdata->keys[key_idx]; @@ -239,10 +239,10 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, memset(¶ms, 0, sizeof(params)); - switch (key->conf.alg) { - case ALG_TKIP: - params.cipher = WLAN_CIPHER_SUITE_TKIP; + params.cipher = key->conf.cipher; + switch (key->conf.cipher) { + case WLAN_CIPHER_SUITE_TKIP: iv32 = key->u.tkip.tx.iv32; iv16 = key->u.tkip.tx.iv16; @@ -260,8 +260,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, params.seq = seq; params.seq_len = 6; break; - case ALG_CCMP: - params.cipher = WLAN_CIPHER_SUITE_CCMP; + case WLAN_CIPHER_SUITE_CCMP: seq[0] = key->u.ccmp.tx_pn[5]; seq[1] = key->u.ccmp.tx_pn[4]; seq[2] = key->u.ccmp.tx_pn[3]; @@ -271,14 +270,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, params.seq = seq; params.seq_len = 6; break; - case ALG_WEP: - if (key->conf.keylen == 5) - params.cipher = WLAN_CIPHER_SUITE_WEP40; - else - params.cipher = WLAN_CIPHER_SUITE_WEP104; - break; - case ALG_AES_CMAC: - params.cipher = WLAN_CIPHER_SUITE_AES_CMAC; + case WLAN_CIPHER_SUITE_AES_CMAC: seq[0] = key->u.aes_cmac.tx_pn[5]; seq[1] = key->u.aes_cmac.tx_pn[4]; seq[2] = key->u.aes_cmac.tx_pn[3]; @@ -303,16 +295,12 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, static int ieee80211_config_default_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx) + u8 key_idx, bool uni, + bool multi) { - struct ieee80211_sub_if_data *sdata; - - rcu_read_lock(); - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - ieee80211_set_default_key(sdata, key_idx); + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - rcu_read_unlock(); + ieee80211_set_default_key(sdata, key_idx, uni, multi); return 0; } @@ -321,15 +309,10 @@ static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, u8 key_idx) { - struct ieee80211_sub_if_data *sdata; - - rcu_read_lock(); + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - sdata = IEEE80211_DEV_TO_SUB_IF(dev); ieee80211_set_default_mgmt_key(sdata, key_idx); - rcu_read_unlock(); - return 0; } @@ -344,18 +327,25 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) STATION_INFO_TX_BYTES | STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS | - STATION_INFO_TX_BITRATE; + STATION_INFO_TX_RETRIES | + STATION_INFO_TX_FAILED | + STATION_INFO_TX_BITRATE | + STATION_INFO_RX_DROP_MISC; sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); sinfo->rx_bytes = sta->rx_bytes; sinfo->tx_bytes = sta->tx_bytes; sinfo->rx_packets = sta->rx_packets; sinfo->tx_packets = sta->tx_packets; + sinfo->tx_retries = sta->tx_retry_count; + sinfo->tx_failed = sta->tx_retry_failed; + sinfo->rx_dropped_misc = sta->rx_dropped; 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; @@ -415,9 +405,6 @@ static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - if (!local->ops->get_survey) - return -EOPNOTSUPP; - return drv_get_survey(local, idx, survey); } @@ -600,7 +587,7 @@ struct iapp_layer2_update { u8 ssap; /* 0 */ u8 control; u8 xid_info[3]; -} __attribute__ ((packed)); +} __packed; static void ieee80211_send_layer2_update(struct sta_info *sta) { @@ -632,13 +619,14 @@ static void ieee80211_send_layer2_update(struct sta_info *sta) skb->dev = sta->sdata->dev; skb->protocol = eth_type_trans(skb, sta->sdata->dev); memset(skb->cb, 0, sizeof(skb->cb)); - netif_rx(skb); + netif_rx_ni(skb); } static void sta_apply_parameters(struct ieee80211_local *local, struct sta_info *sta, struct station_parameters *params) { + unsigned long flags; u32 rates; int i, j; struct ieee80211_supported_band *sband; @@ -647,7 +635,7 @@ static void sta_apply_parameters(struct ieee80211_local *local, sband = local->hw.wiphy->bands[local->oper_channel->band]; - spin_lock_bh(&sta->lock); + spin_lock_irqsave(&sta->flaglock, flags); mask = params->sta_flags_mask; set = params->sta_flags_set; @@ -674,7 +662,7 @@ static void sta_apply_parameters(struct ieee80211_local *local, if (set & BIT(NL80211_STA_FLAG_MFP)) sta->flags |= WLAN_STA_MFP; } - spin_unlock_bh(&sta->lock); + spin_unlock_irqrestore(&sta->flaglock, flags); /* * cfg80211 validates this (1-2007) and allows setting the AID @@ -996,7 +984,7 @@ static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, return 0; } -static int ieee80211_get_mesh_params(struct wiphy *wiphy, +static int ieee80211_get_mesh_config(struct wiphy *wiphy, struct net_device *dev, struct mesh_config *conf) { @@ -1012,9 +1000,39 @@ 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 copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, + const struct mesh_setup *setup) +{ + u8 *new_ie; + const u8 *old_ie; + + /* first allocate the new vendor information element */ + new_ie = NULL; + old_ie = ifmsh->vendor_ie; + + ifmsh->vendor_ie_len = setup->vendor_ie_len; + if (setup->vendor_ie_len) { + new_ie = kmemdup(setup->vendor_ie, setup->vendor_ie_len, + GFP_KERNEL); + if (!new_ie) + return -ENOMEM; + } + + /* now copy the rest of the setup parameters */ + ifmsh->mesh_id_len = setup->mesh_id_len; + memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); + ifmsh->mesh_pp_id = setup->path_sel_proto; + ifmsh->mesh_pm_id = setup->path_metric; + ifmsh->vendor_ie = new_ie; + + kfree(old_ie); + + return 0; +} + +static int ieee80211_update_mesh_config(struct wiphy *wiphy, + struct net_device *dev, u32 mask, + const struct mesh_config *nconf) { struct mesh_config *conf; struct ieee80211_sub_if_data *sdata; @@ -1037,6 +1055,8 @@ 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)) @@ -1063,6 +1083,31 @@ 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; + int err; + + memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); + err = copy_mesh_setup(ifmsh, setup); + if (err) + return err; + 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, @@ -1121,6 +1166,12 @@ 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; @@ -1148,16 +1199,12 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy, p.uapsd = false; if (drv_conf_tx(local, params->queue, &p)) { - printk(KERN_DEBUG "%s: failed to set TX queue " - "parameters for queue %d\n", - wiphy_name(local->hw.wiphy), params->queue); + wiphy_debug(local->hw.wiphy, + "failed to set TX queue parameters for queue %d\n", + params->queue); return -EINVAL; } - /* enable WMM or activate new settings */ - local->hw.conf.flags |= IEEE80211_CONF_QOS; - drv_config(local, IEEE80211_CONF_CHANGE_QOS); - return 0; } @@ -1216,15 +1263,26 @@ static int ieee80211_scan(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_scan_request *req) { - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type != NL80211_IFTYPE_STATION && - sdata->vif.type != NL80211_IFTYPE_ADHOC && - sdata->vif.type != NL80211_IFTYPE_MESH_POINT && - (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon)) + switch (ieee80211_vif_type_p2p(&sdata->vif)) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_MESH_POINT: + case NL80211_IFTYPE_P2P_CLIENT: + break; + case NL80211_IFTYPE_P2P_GO: + if (sdata->local->ops->hw_scan) + break; + /* FIXME: implement NoA while scanning in software */ + return -EOPNOTSUPP; + case NL80211_IFTYPE_AP: + if (sdata->u.ap.beacon) + return -EOPNOTSUPP; + break; + default: return -EOPNOTSUPP; + } return ieee80211_request_scan(sdata, req); } @@ -1305,6 +1363,13 @@ 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); @@ -1331,28 +1396,28 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) } static int ieee80211_set_tx_power(struct wiphy *wiphy, - enum tx_power_setting type, int dbm) + enum nl80211_tx_power_setting type, int mbm) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_channel *chan = local->hw.conf.channel; u32 changes = 0; switch (type) { - case TX_POWER_AUTOMATIC: + case NL80211_TX_POWER_AUTOMATIC: local->user_power_level = -1; break; - case TX_POWER_LIMITED: - if (dbm < 0) - return -EINVAL; - local->user_power_level = dbm; + case NL80211_TX_POWER_LIMITED: + if (mbm < 0 || (mbm % 100)) + return -EOPNOTSUPP; + local->user_power_level = MBM_TO_DBM(mbm); break; - case TX_POWER_FIXED: - if (dbm < 0) - return -EINVAL; + case NL80211_TX_POWER_FIXED: + if (mbm < 0 || (mbm % 100)) + return -EOPNOTSUPP; /* TODO: move to cfg80211 when it knows the channel */ - if (dbm > chan->max_power) + if (MBM_TO_DBM(mbm) > chan->max_power) return -EINVAL; - local->user_power_level = dbm; + local->user_power_level = MBM_TO_DBM(mbm); break; } @@ -1371,7 +1436,7 @@ static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm) } static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, - u8 *addr) + const u8 *addr) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); @@ -1420,7 +1485,7 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, if (!sdata->u.mgd.associated || sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) { mutex_lock(&sdata->local->iflist_mtx); - ieee80211_recalc_smps(sdata->local, sdata); + ieee80211_recalc_smps(sdata->local); mutex_unlock(&sdata->local->iflist_mtx); return 0; } @@ -1448,7 +1513,6 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_conf *conf = &local->hw.conf; if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EOPNOTSUPP; @@ -1457,11 +1521,11 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, return -EOPNOTSUPP; if (enabled == sdata->u.mgd.powersave && - timeout == conf->dynamic_ps_forced_timeout) + timeout == local->dynamic_ps_forced_timeout) return 0; sdata->u.mgd.powersave = enabled; - conf->dynamic_ps_forced_timeout = timeout; + local->dynamic_ps_forced_timeout = timeout; /* no change, but if automatic follow powersave */ mutex_lock(&sdata->u.mgd.mtx); @@ -1529,6 +1593,37 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, return 0; } +static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local, + struct net_device *dev, + struct ieee80211_channel *chan, + enum nl80211_channel_type chantype, + unsigned int duration, u64 *cookie) +{ + int ret; + u32 random_cookie; + + lockdep_assert_held(&local->mtx); + + if (local->hw_roc_cookie) + return -EBUSY; + /* must be nonzero */ + random_cookie = random32() | 1; + + *cookie = random_cookie; + local->hw_roc_dev = dev; + local->hw_roc_cookie = random_cookie; + local->hw_roc_channel = chan; + local->hw_roc_channel_type = chantype; + local->hw_roc_duration = duration; + ret = drv_remain_on_channel(local, chan, chantype, duration); + if (ret) { + local->hw_roc_channel = NULL; + local->hw_roc_cookie = 0; + } + + return ret; +} + static int ieee80211_remain_on_channel(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_channel *chan, @@ -1537,27 +1632,309 @@ static int ieee80211_remain_on_channel(struct wiphy *wiphy, u64 *cookie) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; + + if (local->ops->remain_on_channel) { + int ret; + + mutex_lock(&local->mtx); + ret = ieee80211_remain_on_channel_hw(local, dev, + chan, channel_type, + duration, cookie); + local->hw_roc_for_tx = false; + mutex_unlock(&local->mtx); + + return ret; + } return ieee80211_wk_remain_on_channel(sdata, chan, channel_type, duration, cookie); } +static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local, + u64 cookie) +{ + int ret; + + lockdep_assert_held(&local->mtx); + + if (local->hw_roc_cookie != cookie) + return -ENOENT; + + ret = drv_cancel_remain_on_channel(local); + if (ret) + return ret; + + local->hw_roc_cookie = 0; + local->hw_roc_channel = NULL; + + ieee80211_recalc_idle(local); + + return 0; +} + static int ieee80211_cancel_remain_on_channel(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; + + if (local->ops->cancel_remain_on_channel) { + int ret; + + mutex_lock(&local->mtx); + ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); + mutex_unlock(&local->mtx); + + return ret; + } return ieee80211_wk_cancel_remain_on_channel(sdata, cookie); } -static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, - const u8 *buf, size_t len, u64 *cookie) +static enum work_done_result +ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb) { - return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan, - channel_type, buf, len, cookie); + /* + * 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, bool offchan, + enum nl80211_channel_type channel_type, + 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) + is_offchan = true; + if (channel_type_valid && + (channel_type != local->tmp_channel_type && + channel_type != local->_oper_channel_type)) + is_offchan = true; + + if (chan == local->hw_roc_channel) { + /* TODO: check channel type? */ + is_offchan = false; + flags |= IEEE80211_TX_CTL_TX_OFFCHAN; + } + + if (is_offchan && !offchan) + return -EBUSY; + + switch (sdata->vif.type) { + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_P2P_GO: + case NL80211_IFTYPE_MESH_POINT: + if (!ieee80211_is_action(mgmt->frame_control) || + mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) + break; + rcu_read_lock(); + sta = sta_info_get(sdata, mgmt->da); + rcu_read_unlock(); + if (!sta) + return -ENOLINK; + break; + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: + break; + default: + return -EOPNOTSUPP; + } + + skb = dev_alloc_skb(local->hw.extra_tx_headroom + len); + if (!skb) + return -ENOMEM; + skb_reserve(skb, local->hw.extra_tx_headroom); + + memcpy(skb_put(skb, len), buf, len); + + IEEE80211_SKB_CB(skb)->flags = flags; + + skb->dev = sdata->dev; + + *cookie = (unsigned long) skb; + + if (is_offchan && local->ops->remain_on_channel) { + unsigned int duration; + int ret; + + mutex_lock(&local->mtx); + /* + * If the duration is zero, then the driver + * wouldn't actually do anything. Set it to + * 100 for now. + * + * TODO: cancel the off-channel operation + * when we get the SKB's TX status and + * the wait time was zero before. + */ + duration = 100; + if (wait) + duration = wait; + ret = ieee80211_remain_on_channel_hw(local, dev, chan, + channel_type, + duration, cookie); + if (ret) { + kfree_skb(skb); + mutex_unlock(&local->mtx); + return ret; + } + + local->hw_roc_for_tx = true; + local->hw_roc_duration = wait; + + /* + * queue up frame for transmission after + * ieee80211_ready_on_channel call + */ + + /* modify cookie to prevent API mismatches */ + *cookie ^= 2; + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN; + local->hw_roc_skb = skb; + mutex_unlock(&local->mtx); + + return 0; + } + + /* + * 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); + + if (local->ops->cancel_remain_on_channel) { + cookie ^= 2; + ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); + + if (ret == 0) { + kfree_skb(local->hw_roc_skb); + local->hw_roc_skb = NULL; + } + + mutex_unlock(&local->mtx); + + return ret; + } + + 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) +{ + struct ieee80211_local *local = wiphy_priv(wiphy); + + if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ)) + return; + + if (reg) + local->probe_req_reg++; + else + local->probe_req_reg--; + + 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 = { @@ -1584,8 +1961,10 @@ 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, - .get_mesh_params = ieee80211_get_mesh_params, + .update_mesh_config = ieee80211_update_mesh_config, + .get_mesh_config = ieee80211_get_mesh_config, + .join_mesh = ieee80211_join_mesh, + .leave_mesh = ieee80211_leave_mesh, #endif .change_bss = ieee80211_change_bss, .set_txq_params = ieee80211_set_txq_params, @@ -1609,6 +1988,10 @@ struct cfg80211_ops mac80211_config_ops = { .set_bitrate_mask = ieee80211_set_bitrate_mask, .remain_on_channel = ieee80211_remain_on_channel, .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, - .action = ieee80211_action, + .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, }; |