X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fmac80211%2Fcfg.c;h=a9fce4afdf211b785753da1ea74f03546fc14d14;hb=2283af5b0b99565f516eacd756df2b1ddf9f4f85;hp=22c9619ba7760e0d9e49c8fa8262a08f9deb6c64;hpb=c64768a7d671bcde80bca2aed93f9e07edc069c3;p=linux-2.6 diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 22c9619ba7..a9fce4afdf 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -14,7 +14,8 @@ #include #include "ieee80211_i.h" #include "cfg.h" -#include "ieee80211_rate.h" +#include "rate.h" +#include "mesh.h" static enum ieee80211_if_types nl80211_type_to_mac80211_type(enum nl80211_iftype type) @@ -28,16 +29,26 @@ nl80211_type_to_mac80211_type(enum nl80211_iftype type) return IEEE80211_IF_TYPE_STA; case NL80211_IFTYPE_MONITOR: return IEEE80211_IF_TYPE_MNTR; +#ifdef CONFIG_MAC80211_MESH + case NL80211_IFTYPE_MESH_POINT: + return IEEE80211_IF_TYPE_MESH_POINT; +#endif + case NL80211_IFTYPE_WDS: + return IEEE80211_IF_TYPE_WDS; default: return IEEE80211_IF_TYPE_INVALID; } } static int ieee80211_add_iface(struct wiphy *wiphy, char *name, - enum nl80211_iftype type) + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) { struct ieee80211_local *local = wiphy_priv(wiphy); enum ieee80211_if_types itype; + struct net_device *dev; + struct ieee80211_sub_if_data *sdata; + int err; if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) return -ENODEV; @@ -46,7 +57,13 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name, if (itype == IEEE80211_IF_TYPE_INVALID) return -EINVAL; - return ieee80211_if_add(local->mdev, name, NULL, itype); + err = ieee80211_if_add(local->mdev, name, &dev, itype, params); + if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags) + return err; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + sdata->u.mntr_flags = *flags; + return 0; } static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex) @@ -69,7 +86,8 @@ static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex) } static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex, - enum nl80211_iftype type) + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) { struct ieee80211_local *local = wiphy_priv(wiphy); struct net_device *dev; @@ -99,6 +117,15 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex, ieee80211_if_reinit(dev); ieee80211_if_set_type(dev, itype); + if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len) + ieee80211_if_sta_set_mesh_id(&sdata->u.sta, + params->mesh_id_len, + params->mesh_id); + + if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR || !flags) + return 0; + + sdata->u.mntr_flags = *flags; return 0; } @@ -109,7 +136,8 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_sub_if_data *sdata; struct sta_info *sta = NULL; enum ieee80211_key_alg alg; - int ret; + struct ieee80211_key *key; + int err; sdata = IEEE80211_DEV_TO_SUB_IF(dev); @@ -128,21 +156,28 @@ 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); + if (!key) + return -ENOMEM; + + rcu_read_lock(); + if (mac_addr) { sta = sta_info_get(sdata->local, mac_addr); - if (!sta) - return -ENOENT; + if (!sta) { + ieee80211_key_free(key); + err = -ENOENT; + goto out_unlock; + } } - ret = 0; - if (!ieee80211_key_alloc(sdata, sta, alg, key_idx, - params->key_len, params->key)) - ret = -ENOMEM; + ieee80211_key_link(key, sdata, sta); - if (sta) - sta_info_put(sta); + err = 0; + out_unlock: + rcu_read_unlock(); - return ret; + return err; } static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, @@ -154,27 +189,37 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, sdata = IEEE80211_DEV_TO_SUB_IF(dev); + rcu_read_lock(); + if (mac_addr) { + ret = -ENOENT; + sta = sta_info_get(sdata->local, mac_addr); if (!sta) - return -ENOENT; + goto out_unlock; - ret = 0; - if (sta->key) + if (sta->key) { ieee80211_key_free(sta->key); - else - ret = -ENOENT; + WARN_ON(sta->key); + ret = 0; + } - sta_info_put(sta); - return ret; + goto out_unlock; } - if (!sdata->keys[key_idx]) - return -ENOENT; + if (!sdata->keys[key_idx]) { + ret = -ENOENT; + goto out_unlock; + } ieee80211_key_free(sdata->keys[key_idx]); + WARN_ON(sdata->keys[key_idx]); - return 0; + ret = 0; + out_unlock: + rcu_read_unlock(); + + return ret; } static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, @@ -191,6 +236,8 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, u16 iv16; int err = -ENOENT; + rcu_read_lock(); + if (mac_addr) { sta = sta_info_get(sdata->local, mac_addr); if (!sta) @@ -254,8 +301,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, err = 0; out: - if (sta) - sta_info_put(sta); + rcu_read_unlock(); return err; } @@ -265,35 +311,83 @@ static int ieee80211_config_default_key(struct wiphy *wiphy, { struct ieee80211_sub_if_data *sdata; + rcu_read_lock(); + sdata = IEEE80211_DEV_TO_SUB_IF(dev); ieee80211_set_default_key(sdata, key_idx); + rcu_read_unlock(); + return 0; } +static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) +{ + struct ieee80211_sub_if_data *sdata = sta->sdata; + + sinfo->filled = STATION_INFO_INACTIVE_TIME | + STATION_INFO_RX_BYTES | + STATION_INFO_TX_BYTES; + + sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); + sinfo->rx_bytes = sta->rx_bytes; + sinfo->tx_bytes = sta->tx_bytes; + + if (ieee80211_vif_is_mesh(&sdata->vif)) { +#ifdef CONFIG_MAC80211_MESH + sinfo->filled |= STATION_INFO_LLID | + STATION_INFO_PLID | + STATION_INFO_PLINK_STATE; + + sinfo->llid = le16_to_cpu(sta->llid); + sinfo->plid = le16_to_cpu(sta->plid); + sinfo->plink_state = sta->plink_state; +#endif + } +} + + +static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, + int idx, u8 *mac, struct station_info *sinfo) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct sta_info *sta; + int ret = -ENOENT; + + rcu_read_lock(); + + sta = sta_info_get_by_idx(local, idx, dev); + if (sta) { + ret = 0; + memcpy(mac, sta->addr, ETH_ALEN); + sta_set_sinfo(sta, sinfo); + } + + rcu_read_unlock(); + + return ret; +} + static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, - u8 *mac, struct station_stats *stats) + u8 *mac, struct station_info *sinfo) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct sta_info *sta; + int ret = -ENOENT; - sta = sta_info_get(local, mac); - if (!sta) - return -ENOENT; + rcu_read_lock(); /* XXX: verify sta->dev == dev */ - stats->filled = STATION_STAT_INACTIVE_TIME | - STATION_STAT_RX_BYTES | - STATION_STAT_TX_BYTES; - - stats->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); - stats->rx_bytes = sta->rx_bytes; - stats->tx_bytes = sta->tx_bytes; + sta = sta_info_get(local, mac); + if (sta) { + ret = 0; + sta_set_sinfo(sta, sinfo); + } - sta_info_put(sta); + rcu_read_unlock(); - return 0; + return ret; } /* @@ -486,8 +580,8 @@ static void ieee80211_send_layer2_update(struct sta_info *sta) msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ - skb->dev = sta->dev; - skb->protocol = eth_type_trans(skb, sta->dev); + skb->dev = sta->sdata->dev; + skb->protocol = eth_type_trans(skb, sta->sdata->dev); memset(skb->cb, 0, sizeof(skb->cb)); netif_rx(skb); } @@ -498,7 +592,14 @@ static void sta_apply_parameters(struct ieee80211_local *local, { u32 rates; int i, j; - struct ieee80211_hw_mode *mode; + struct ieee80211_supported_band *sband; + struct ieee80211_sub_if_data *sdata = sta->sdata; + + /* + * FIXME: updating the flags is racy when this function is + * called from ieee80211_change_station(), this will + * be resolved in a future patch. + */ if (params->station_flags & STATION_FLAG_CHANGED) { sta->flags &= ~WLAN_STA_AUTHORIZED; @@ -514,6 +615,13 @@ static void sta_apply_parameters(struct ieee80211_local *local, sta->flags |= WLAN_STA_WME; } + /* + * FIXME: updating the following information is racy when this + * function is called from ieee80211_change_station(). + * However, all this information should be static so + * maybe we should just reject attemps to change it. + */ + if (params->aid) { sta->aid = params->aid; if (sta->aid > IEEE80211_MAX_AID) @@ -525,15 +633,27 @@ static void sta_apply_parameters(struct ieee80211_local *local, if (params->supported_rates) { rates = 0; - mode = local->oper_hw_mode; + sband = local->hw.wiphy->bands[local->oper_channel->band]; + for (i = 0; i < params->supported_rates_len; i++) { int rate = (params->supported_rates[i] & 0x7f) * 5; - for (j = 0; j < mode->num_rates; j++) { - if (mode->rates[j].rate == rate) + for (j = 0; j < sband->n_bitrates; j++) { + if (sband->bitrates[j].bitrate == rate) rates |= BIT(j); } } - sta->supp_rates = rates; + sta->supp_rates[local->oper_channel->band] = rates; + } + + if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) { + switch (params->plink_action) { + case PLINK_ACTION_OPEN: + mesh_plink_open(sta); + break; + case PLINK_ACTION_BLOCK: + mesh_plink_block(sta); + break; + } } } @@ -543,43 +663,51 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct sta_info *sta; struct ieee80211_sub_if_data *sdata; + int err; /* Prevent a race with changing the rate control algorithm */ if (!netif_running(dev)) return -ENETDOWN; - /* XXX: get sta belonging to dev */ - sta = sta_info_get(local, mac); - if (sta) { - sta_info_put(sta); - return -EEXIST; - } - if (params->vlan) { sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); - if (sdata->vif.type != IEEE80211_IF_TYPE_VLAN || + if (sdata->vif.type != IEEE80211_IF_TYPE_VLAN && sdata->vif.type != IEEE80211_IF_TYPE_AP) return -EINVAL; } else sdata = IEEE80211_DEV_TO_SUB_IF(dev); - sta = sta_info_add(local, dev, mac, GFP_KERNEL); + if (compare_ether_addr(mac, dev->dev_addr) == 0) + return -EINVAL; + + if (is_multicast_ether_addr(mac)) + return -EINVAL; + + sta = sta_info_alloc(sdata, mac, GFP_KERNEL); if (!sta) return -ENOMEM; - sta->dev = sdata->dev; - if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN || - sdata->vif.type == IEEE80211_IF_TYPE_AP) - ieee80211_send_layer2_update(sta); - sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC; sta_apply_parameters(local, sta, params); rate_control_rate_init(sta, local); - sta_info_put(sta); + rcu_read_lock(); + + err = sta_info_insert(sta); + if (err) { + /* STA has been freed */ + rcu_read_unlock(); + return err; + } + + if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN || + sdata->vif.type == IEEE80211_IF_TYPE_AP) + ieee80211_send_layer2_update(sta); + + rcu_read_unlock(); return 0; } @@ -587,19 +715,26 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, u8 *mac) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; struct sta_info *sta; if (mac) { + rcu_read_lock(); + /* XXX: get sta belonging to dev */ sta = sta_info_get(local, mac); - if (!sta) + if (!sta) { + rcu_read_unlock(); return -ENOENT; + } + + sta_info_unlink(&sta); + rcu_read_unlock(); - sta_info_free(sta); - sta_info_put(sta); + sta_info_destroy(sta); } else - sta_info_flush(local, dev); + sta_info_flush(local, sdata); return 0; } @@ -613,28 +748,203 @@ static int ieee80211_change_station(struct wiphy *wiphy, struct sta_info *sta; struct ieee80211_sub_if_data *vlansdata; + rcu_read_lock(); + /* XXX: get sta belonging to dev */ sta = sta_info_get(local, mac); - if (!sta) + if (!sta) { + rcu_read_unlock(); return -ENOENT; + } - if (params->vlan && params->vlan != sta->dev) { + if (params->vlan && params->vlan != sta->sdata->dev) { vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); - if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN || - vlansdata->vif.type != IEEE80211_IF_TYPE_AP) + if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN && + vlansdata->vif.type != IEEE80211_IF_TYPE_AP) { + rcu_read_unlock(); return -EINVAL; + } - sta->dev = params->vlan; + sta->sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); ieee80211_send_layer2_update(sta); } sta_apply_parameters(local, sta, params); - sta_info_put(sta); + rcu_read_unlock(); + + return 0; +} + +#ifdef CONFIG_MAC80211_MESH +static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, + u8 *dst, u8 *next_hop) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct mesh_path *mpath; + struct sta_info *sta; + int err; + + if (!netif_running(dev)) + return -ENETDOWN; + + if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) + return -ENOTSUPP; + + rcu_read_lock(); + sta = sta_info_get(local, next_hop); + if (!sta) { + rcu_read_unlock(); + return -ENOENT; + } + err = mesh_path_add(dst, dev); + if (err) { + rcu_read_unlock(); + return err; + } + + mpath = mesh_path_lookup(dst, dev); + if (!mpath) { + rcu_read_unlock(); + return -ENXIO; + } + mesh_path_fix_nexthop(mpath, sta); + + rcu_read_unlock(); + return 0; +} + +static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, + u8 *dst) +{ + if (dst) + return mesh_path_del(dst, dev); + + mesh_path_flush(dev); + return 0; +} + +static int ieee80211_change_mpath(struct wiphy *wiphy, + struct net_device *dev, + u8 *dst, u8 *next_hop) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct mesh_path *mpath; + struct sta_info *sta; + + if (!netif_running(dev)) + return -ENETDOWN; + + if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) + return -ENOTSUPP; + + rcu_read_lock(); + + sta = sta_info_get(local, next_hop); + if (!sta) { + rcu_read_unlock(); + return -ENOENT; + } + + mpath = mesh_path_lookup(dst, dev); + if (!mpath) { + rcu_read_unlock(); + return -ENOENT; + } + + mesh_path_fix_nexthop(mpath, sta); + + rcu_read_unlock(); + return 0; +} + +static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, + struct mpath_info *pinfo) +{ + if (mpath->next_hop) + memcpy(next_hop, mpath->next_hop->addr, ETH_ALEN); + else + memset(next_hop, 0, ETH_ALEN); + + pinfo->filled = MPATH_INFO_FRAME_QLEN | + MPATH_INFO_DSN | + MPATH_INFO_METRIC | + MPATH_INFO_EXPTIME | + MPATH_INFO_DISCOVERY_TIMEOUT | + MPATH_INFO_DISCOVERY_RETRIES | + MPATH_INFO_FLAGS; + + pinfo->frame_qlen = mpath->frame_queue.qlen; + pinfo->dsn = mpath->dsn; + pinfo->metric = mpath->metric; + if (time_before(jiffies, mpath->exp_time)) + pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); + pinfo->discovery_timeout = + jiffies_to_msecs(mpath->discovery_timeout); + pinfo->discovery_retries = mpath->discovery_retries; + pinfo->flags = 0; + if (mpath->flags & MESH_PATH_ACTIVE) + pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; + if (mpath->flags & MESH_PATH_RESOLVING) + pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; + if (mpath->flags & MESH_PATH_DSN_VALID) + pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID; + if (mpath->flags & MESH_PATH_FIXED) + pinfo->flags |= NL80211_MPATH_FLAG_FIXED; + if (mpath->flags & MESH_PATH_RESOLVING) + pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; + + pinfo->flags = mpath->flags; +} + +static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, + u8 *dst, u8 *next_hop, struct mpath_info *pinfo) + +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct mesh_path *mpath; + + if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) + return -ENOTSUPP; + + rcu_read_lock(); + mpath = mesh_path_lookup(dst, dev); + if (!mpath) { + rcu_read_unlock(); + return -ENOENT; + } + memcpy(dst, mpath->dst, ETH_ALEN); + mpath_set_pinfo(mpath, next_hop, pinfo); + rcu_read_unlock(); + return 0; +} + +static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, + int idx, u8 *dst, u8 *next_hop, + struct mpath_info *pinfo) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct mesh_path *mpath; + + if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) + return -ENOTSUPP; + + rcu_read_lock(); + mpath = mesh_path_lookup_by_idx(idx, dev); + if (!mpath) { + rcu_read_unlock(); + return -ENOENT; + } + memcpy(dst, mpath->dst, ETH_ALEN); + mpath_set_pinfo(mpath, next_hop, pinfo); + rcu_read_unlock(); return 0; } +#endif struct cfg80211_ops mac80211_config_ops = { .add_virtual_intf = ieee80211_add_iface, @@ -651,4 +961,12 @@ struct cfg80211_ops mac80211_config_ops = { .del_station = ieee80211_del_station, .change_station = ieee80211_change_station, .get_station = ieee80211_get_station, + .dump_station = ieee80211_dump_station, +#ifdef CONFIG_MAC80211_MESH + .add_mpath = ieee80211_add_mpath, + .del_mpath = ieee80211_del_mpath, + .change_mpath = ieee80211_change_mpath, + .get_mpath = ieee80211_get_mpath, + .dump_mpath = ieee80211_dump_mpath, +#endif };