mac80211: check interface is down before type change
[safe/jmp/linux-2.6] / net / mac80211 / cfg.c
index d0ca6da..7b5131b 100644 (file)
@@ -57,35 +57,23 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
        return 0;
 }
 
-static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
+static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
 {
-       struct net_device *dev;
-       struct ieee80211_sub_if_data *sdata;
-
-       /* we're under RTNL */
-       dev = __dev_get_by_index(&init_net, ifindex);
-       if (!dev)
-               return -ENODEV;
-
-       sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-       ieee80211_if_remove(sdata);
+       ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
 
        return 0;
 }
 
-static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
+static int ieee80211_change_iface(struct wiphy *wiphy,
+                                 struct net_device *dev,
                                  enum nl80211_iftype type, u32 *flags,
                                  struct vif_params *params)
 {
-       struct net_device *dev;
        struct ieee80211_sub_if_data *sdata;
        int ret;
 
-       /* we're under RTNL */
-       dev = __dev_get_by_index(&init_net, ifindex);
-       if (!dev)
-               return -ENODEV;
+       if (netif_running(dev))
+               return -EBUSY;
 
        if (!nl80211_type_check(type))
                return -EINVAL;
@@ -96,9 +84,6 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
        if (ret)
                return ret;
 
-       if (netif_running(sdata->dev))
-               return -EBUSY;
-
        if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
                ieee80211_sdata_set_mesh_id(sdata,
                                            params->mesh_id_len,
@@ -112,7 +97,7 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
 }
 
 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
-                            u8 key_idx, u8 *mac_addr,
+                            u8 key_idx, const u8 *mac_addr,
                             struct key_params *params)
 {
        struct ieee80211_sub_if_data *sdata;
@@ -141,7 +126,8 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
                return -EINVAL;
        }
 
-       key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key);
+       key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
+                                 params->seq_len, params->seq);
        if (!key)
                return -ENOMEM;
 
@@ -166,7 +152,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 }
 
 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
-                            u8 key_idx, u8 *mac_addr)
+                            u8 key_idx, const u8 *mac_addr)
 {
        struct ieee80211_sub_if_data *sdata;
        struct sta_info *sta;
@@ -208,7 +194,7 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 }
 
 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
-                            u8 key_idx, u8 *mac_addr, void *cookie,
+                            u8 key_idx, const u8 *mac_addr, void *cookie,
                             void (*callback)(void *cookie,
                                              struct key_params *params))
 {
@@ -337,6 +323,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 {
        struct ieee80211_sub_if_data *sdata = sta->sdata;
 
+       sinfo->generation = sdata->local->sta_generation;
+
        sinfo->filled = STATION_INFO_INACTIVE_TIME |
                        STATION_INFO_RX_BYTES |
                        STATION_INFO_TX_BYTES |
@@ -629,34 +617,45 @@ static void sta_apply_parameters(struct ieee80211_local *local,
        int i, j;
        struct ieee80211_supported_band *sband;
        struct ieee80211_sub_if_data *sdata = sta->sdata;
+       u32 mask, set;
 
        sband = local->hw.wiphy->bands[local->oper_channel->band];
 
-       /*
-        * FIXME: updating the flags is racy when this function is
-        *        called from ieee80211_change_station(), this will
-        *        be resolved in a future patch.
-        */
+       spin_lock_bh(&sta->lock);
+       mask = params->sta_flags_mask;
+       set = params->sta_flags_set;
 
-       if (params->station_flags & STATION_FLAG_CHANGED) {
-               spin_lock_bh(&sta->lock);
+       if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
                sta->flags &= ~WLAN_STA_AUTHORIZED;
-               if (params->station_flags & STATION_FLAG_AUTHORIZED)
+               if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
                        sta->flags |= WLAN_STA_AUTHORIZED;
+       }
 
+       if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
                sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
-               if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE)
+               if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
                        sta->flags |= WLAN_STA_SHORT_PREAMBLE;
+       }
 
+       if (mask & BIT(NL80211_STA_FLAG_WME)) {
                sta->flags &= ~WLAN_STA_WME;
-               if (params->station_flags & STATION_FLAG_WME)
+               if (set & BIT(NL80211_STA_FLAG_WME))
                        sta->flags |= WLAN_STA_WME;
+       }
 
+       if (mask & BIT(NL80211_STA_FLAG_MFP)) {
                sta->flags &= ~WLAN_STA_MFP;
-               if (params->station_flags & STATION_FLAG_MFP)
+               if (set & BIT(NL80211_STA_FLAG_MFP))
                        sta->flags |= WLAN_STA_MFP;
-               spin_unlock_bh(&sta->lock);
        }
+       spin_unlock_bh(&sta->lock);
+
+       /*
+        * cfg80211 validates this (1-2007) and allows setting the AID
+        * only when creating a new station entry
+        */
+       if (params->aid)
+               sta->sta.aid = params->aid;
 
        /*
         * FIXME: updating the following information is racy when this
@@ -665,12 +664,6 @@ static void sta_apply_parameters(struct ieee80211_local *local,
         *        maybe we should just reject attemps to change it.
         */
 
-       if (params->aid) {
-               sta->sta.aid = params->aid;
-               if (sta->sta.aid > IEEE80211_MAX_AID)
-                       sta->sta.aid = 0; /* XXX: should this be an error? */
-       }
-
        if (params->listen_interval >= 0)
                sta->listen_interval = params->listen_interval;
 
@@ -918,6 +911,8 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
        else
                memset(next_hop, 0, ETH_ALEN);
 
+       pinfo->generation = mesh_paths_generation;
+
        pinfo->filled = MPATH_INFO_FRAME_QLEN |
                        MPATH_INFO_DSN |
                        MPATH_INFO_METRIC |
@@ -1116,8 +1111,8 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
        p.txop = params->txop;
        if (drv_conf_tx(local, params->queue, &p)) {
                printk(KERN_DEBUG "%s: failed to set TX queue "
-                      "parameters for queue %d\n", local->mdev->name,
-                      params->queue);
+                      "parameters for queue %d\n",
+                      wiphy_name(local->hw.wiphy), params->queue);
                return -EINVAL;
        }
 
@@ -1171,110 +1166,29 @@ static int ieee80211_scan(struct wiphy *wiphy,
 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
                          struct cfg80211_auth_request *req)
 {
-       struct ieee80211_sub_if_data *sdata;
-
-       sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-       switch (req->auth_type) {
-       case NL80211_AUTHTYPE_OPEN_SYSTEM:
-               sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_OPEN;
-               break;
-       case NL80211_AUTHTYPE_SHARED_KEY:
-               sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_SHARED_KEY;
-               break;
-       case NL80211_AUTHTYPE_FT:
-               sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_FT;
-               break;
-       case NL80211_AUTHTYPE_NETWORK_EAP:
-               sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_LEAP;
-               break;
-       default:
-               return -EOPNOTSUPP;
-       }
-
-       memcpy(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN);
-       sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
-       sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET;
-
-       /* TODO: req->chan */
-       sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL;
-
-       if (req->ssid) {
-               sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET;
-               memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
-               sdata->u.mgd.ssid_len = req->ssid_len;
-               sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
-       }
-
-       kfree(sdata->u.mgd.sme_auth_ie);
-       sdata->u.mgd.sme_auth_ie = NULL;
-       sdata->u.mgd.sme_auth_ie_len = 0;
-       if (req->ie) {
-               sdata->u.mgd.sme_auth_ie = kmalloc(req->ie_len, GFP_KERNEL);
-               if (sdata->u.mgd.sme_auth_ie == NULL)
-                       return -ENOMEM;
-               memcpy(sdata->u.mgd.sme_auth_ie, req->ie, req->ie_len);
-               sdata->u.mgd.sme_auth_ie_len = req->ie_len;
-       }
-
-       sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
-       sdata->u.mgd.state = IEEE80211_STA_MLME_DIRECT_PROBE;
-       ieee80211_sta_req_auth(sdata);
-       return 0;
+       return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
 }
 
 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
                           struct cfg80211_assoc_request *req)
 {
-       struct ieee80211_sub_if_data *sdata;
-       int ret;
-
-       sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-       if (memcmp(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN) != 0 ||
-           !(sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED))
-               return -ENOLINK; /* not authenticated */
-
-       sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
-       sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET;
-
-       /* TODO: req->chan */
-       sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL;
-
-       if (req->ssid) {
-               sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET;
-               memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
-               sdata->u.mgd.ssid_len = req->ssid_len;
-               sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
-       } else
-               sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
-
-       ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len);
-       if (ret)
-               return ret;
-
-       sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
-       sdata->u.mgd.state = IEEE80211_STA_MLME_ASSOCIATE;
-       ieee80211_sta_req_auth(sdata);
-       return 0;
+       return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
 }
 
 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
-                           struct cfg80211_deauth_request *req)
+                           struct cfg80211_deauth_request *req,
+                           void *cookie)
 {
-       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-       /* TODO: req->ie, req->peer_addr */
-       return ieee80211_sta_deauthenticate(sdata, req->reason_code);
+       return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
+                                   req, cookie);
 }
 
 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
-                             struct cfg80211_disassoc_request *req)
+                             struct cfg80211_disassoc_request *req,
+                             void *cookie)
 {
-       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-       /* TODO: req->ie, req->peer_addr */
-       return ieee80211_sta_disassociate(sdata, req->reason_code);
+       return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
+                                     req, cookie);
 }
 
 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
@@ -1315,6 +1229,142 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
        return 0;
 }
 
+static int ieee80211_set_tx_power(struct wiphy *wiphy,
+                                 enum tx_power_setting type, int dbm)
+{
+       struct ieee80211_local *local = wiphy_priv(wiphy);
+       struct ieee80211_channel *chan = local->hw.conf.channel;
+       u32 changes = 0;
+
+       switch (type) {
+       case TX_POWER_AUTOMATIC:
+               local->user_power_level = -1;
+               break;
+       case TX_POWER_LIMITED:
+               if (dbm < 0)
+                       return -EINVAL;
+               local->user_power_level = dbm;
+               break;
+       case TX_POWER_FIXED:
+               if (dbm < 0)
+                       return -EINVAL;
+               /* TODO: move to cfg80211 when it knows the channel */
+               if (dbm > chan->max_power)
+                       return -EINVAL;
+               local->user_power_level = dbm;
+               break;
+       }
+
+       ieee80211_hw_config(local, changes);
+
+       return 0;
+}
+
+static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
+{
+       struct ieee80211_local *local = wiphy_priv(wiphy);
+
+       *dbm = local->hw.conf.power_level;
+
+       return 0;
+}
+
+static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
+                                 u8 *addr)
+{
+       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+       memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
+
+       return 0;
+}
+
+static void ieee80211_rfkill_poll(struct wiphy *wiphy)
+{
+       struct ieee80211_local *local = wiphy_priv(wiphy);
+
+       drv_rfkill_poll(local);
+}
+
+#ifdef CONFIG_NL80211_TESTMODE
+static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
+{
+       struct ieee80211_local *local = wiphy_priv(wiphy);
+
+       if (!local->ops->testmode_cmd)
+               return -EOPNOTSUPP;
+
+       return local->ops->testmode_cmd(&local->hw, data, len);
+}
+#endif
+
+static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
+                                   bool enabled, int timeout)
+{
+       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 (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
+               return -EOPNOTSUPP;
+
+       if (enabled == sdata->u.mgd.powersave &&
+           timeout == conf->dynamic_ps_timeout)
+               return 0;
+
+       sdata->u.mgd.powersave = enabled;
+       conf->dynamic_ps_timeout = timeout;
+
+       if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
+               ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+
+       ieee80211_recalc_ps(local, -1);
+
+       return 0;
+}
+
+static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
+                                     struct net_device *dev,
+                                     const u8 *addr,
+                                     const struct cfg80211_bitrate_mask *mask)
+{
+       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+       struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+       int i, err = -EINVAL;
+       u32 target_rate;
+       struct ieee80211_supported_band *sband;
+
+       sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+       /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
+        * target_rate = X, rate->fixed = 1 means only rate X
+        * target_rate = X, rate->fixed = 0 means all rates <= X */
+       sdata->max_ratectrl_rateidx = -1;
+       sdata->force_unicast_rateidx = -1;
+
+       if (mask->fixed)
+               target_rate = mask->fixed / 100;
+       else if (mask->maxrate)
+               target_rate = mask->maxrate / 100;
+       else
+               return 0;
+
+       for (i=0; i< sband->n_bitrates; i++) {
+               struct ieee80211_rate *brate = &sband->bitrates[i];
+               int this_rate = brate->bitrate;
+
+               if (target_rate == this_rate) {
+                       sdata->max_ratectrl_rateidx = i;
+                       if (mask->fixed)
+                               sdata->force_unicast_rateidx = i;
+                       err = 0;
+                       break;
+               }
+       }
+
+       return err;
+}
+
 struct cfg80211_ops mac80211_config_ops = {
        .add_virtual_intf = ieee80211_add_iface,
        .del_virtual_intf = ieee80211_del_iface,
@@ -1354,4 +1404,11 @@ struct cfg80211_ops mac80211_config_ops = {
        .join_ibss = ieee80211_join_ibss,
        .leave_ibss = ieee80211_leave_ibss,
        .set_wiphy_params = ieee80211_set_wiphy_params,
+       .set_tx_power = ieee80211_set_tx_power,
+       .get_tx_power = ieee80211_get_tx_power,
+       .set_wds_peer = ieee80211_set_wds_peer,
+       .rfkill_poll = ieee80211_rfkill_poll,
+       CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
+       .set_power_mgmt = ieee80211_set_power_mgmt,
+       .set_bitrate_mask = ieee80211_set_bitrate_mask,
 };