#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "ieee80211_led.h"
+#include "mesh.h"
#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
#define IEEE80211_AUTH_MAX_TRIES 3
#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
#define IEEE80211_ASSOC_MAX_TRIES 3
#define IEEE80211_MONITORING_INTERVAL (2 * HZ)
+#define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
#define IEEE80211_PROBE_INTERVAL (60 * HZ)
#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
#define IEEE80211_SCAN_INTERVAL (2 * HZ)
#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
+#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
struct ieee80211_if_sta *ifsta);
-/* Parsed Information Elements */
-struct ieee802_11_elems {
- /* pointers to IEs */
- u8 *ssid;
- u8 *supp_rates;
- u8 *fh_params;
- u8 *ds_params;
- u8 *cf_params;
- u8 *tim;
- u8 *ibss_params;
- u8 *challenge;
- u8 *wpa;
- u8 *rsn;
- u8 *erp_info;
- u8 *ext_supp_rates;
- u8 *wmm_info;
- u8 *wmm_param;
- u8 *ht_cap_elem;
- u8 *ht_info_elem;
- /* length of them, respectively */
- u8 ssid_len;
- u8 supp_rates_len;
- u8 fh_params_len;
- u8 ds_params_len;
- u8 cf_params_len;
- u8 tim_len;
- u8 ibss_params_len;
- u8 challenge_len;
- u8 wpa_len;
- u8 rsn_len;
- u8 erp_info_len;
- u8 ext_supp_rates_len;
- u8 wmm_info_len;
- u8 wmm_param_len;
- u8 ht_cap_elem_len;
- u8 ht_info_elem_len;
-};
-
-static void ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems)
+void ieee802_11_parse_elems(u8 *start, size_t len,
+ struct ieee802_11_elems *elems)
{
size_t left = len;
u8 *pos = start;
elems->ht_info_elem = pos;
elems->ht_info_elem_len = elen;
break;
+ case WLAN_EID_MESH_ID:
+ elems->mesh_id = pos;
+ elems->mesh_id_len = elen;
+ break;
+ case WLAN_EID_MESH_CONFIG:
+ elems->mesh_config = pos;
+ elems->mesh_config_len = elen;
+ break;
+ case WLAN_EID_PEER_LINK:
+ elems->peer_link = pos;
+ elems->peer_link_len = elen;
+ break;
+ case WLAN_EID_PREQ:
+ elems->preq = pos;
+ elems->preq_len = elen;
+ break;
+ case WLAN_EID_PREP:
+ elems->prep = pos;
+ elems->prep_len = elen;
+ break;
+ case WLAN_EID_PERR:
+ elems->perr = pos;
+ elems->perr_len = elen;
+ break;
default:
break;
}
ieee80211_set_associated(dev, ifsta, 0);
}
-static void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
- int encrypt)
+void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
+ int encrypt)
{
struct ieee80211_sub_if_data *sdata;
struct ieee80211_tx_packet_data *pkt_data;
struct ieee80211_sta_bss *bss)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- bss->hnext = local->sta_bss_hash[STA_HASH(bss->bssid)];
- local->sta_bss_hash[STA_HASH(bss->bssid)] = bss;
+ u8 hash_idx;
+
+ if (bss_mesh_cfg(bss))
+ hash_idx = mesh_id_hash(bss_mesh_id(bss),
+ bss_mesh_id_len(bss));
+ else
+ hash_idx = STA_HASH(bss->bssid);
+
+ bss->hnext = local->sta_bss_hash[hash_idx];
+ local->sta_bss_hash[hash_idx] = bss;
}
return bss;
}
-
static struct ieee80211_sta_bss *
ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq,
u8 *ssid, u8 ssid_len)
spin_lock_bh(&local->sta_bss_lock);
bss = local->sta_bss_hash[STA_HASH(bssid)];
while (bss) {
- if (!memcmp(bss->bssid, bssid, ETH_ALEN) &&
+ if (!bss_mesh_cfg(bss) &&
+ !memcmp(bss->bssid, bssid, ETH_ALEN) &&
bss->freq == freq &&
bss->ssid_len == ssid_len &&
(ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
return bss;
}
+#ifdef CONFIG_MAC80211_MESH
+static struct ieee80211_sta_bss *
+ieee80211_rx_mesh_bss_get(struct net_device *dev, u8 *mesh_id, int mesh_id_len,
+ u8 *mesh_cfg, int freq)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+
+ spin_lock_bh(&local->sta_bss_lock);
+ bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)];
+ while (bss) {
+ if (bss_mesh_cfg(bss) &&
+ !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) &&
+ bss->freq == freq &&
+ mesh_id_len == bss->mesh_id_len &&
+ (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id,
+ mesh_id_len))) {
+ atomic_inc(&bss->users);
+ break;
+ }
+ bss = bss->hnext;
+ }
+ spin_unlock_bh(&local->sta_bss_lock);
+ return bss;
+}
+
+static struct ieee80211_sta_bss *
+ieee80211_rx_mesh_bss_add(struct net_device *dev, u8 *mesh_id, int mesh_id_len,
+ u8 *mesh_cfg, int freq)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+
+ bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
+ if (!bss)
+ return NULL;
+
+ bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC);
+ if (!bss->mesh_cfg) {
+ kfree(bss);
+ return NULL;
+ }
+
+ if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) {
+ bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC);
+ if (!bss->mesh_id) {
+ kfree(bss->mesh_cfg);
+ kfree(bss);
+ return NULL;
+ }
+ memcpy(bss->mesh_id, mesh_id, mesh_id_len);
+ }
+
+ atomic_inc(&bss->users);
+ atomic_inc(&bss->users);
+ memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN);
+ bss->mesh_id_len = mesh_id_len;
+ bss->freq = freq;
+ spin_lock_bh(&local->sta_bss_lock);
+ /* TODO: order by RSSI? */
+ list_add_tail(&bss->list, &local->sta_bss_list);
+ __ieee80211_rx_bss_hash_add(dev, bss);
+ spin_unlock_bh(&local->sta_bss_lock);
+ return bss;
+}
+#endif
static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
{
kfree(bss->rsn_ie);
kfree(bss->wmm_ie);
kfree(bss->ht_ie);
+ kfree(bss_mesh_id(bss));
+ kfree(bss_mesh_cfg(bss));
kfree(bss);
}
return res;
}
+u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
+ struct ieee802_11_elems *elems,
+ enum ieee80211_band band)
+{
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_rate *bitrates;
+ size_t num_rates;
+ u64 supp_rates;
+ int i, j;
+ sband = local->hw.wiphy->bands[band];
+
+ if (!sband) {
+ WARN_ON(1);
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ }
+
+ bitrates = sband->bitrates;
+ num_rates = sband->n_bitrates;
+ supp_rates = 0;
+ for (i = 0; i < elems->supp_rates_len +
+ elems->ext_supp_rates_len; i++) {
+ u8 rate = 0;
+ int own_rate;
+ if (i < elems->supp_rates_len)
+ rate = elems->supp_rates[i];
+ else if (elems->ext_supp_rates)
+ rate = elems->ext_supp_rates
+ [i - elems->supp_rates_len];
+ own_rate = 5 * (rate & 0x7f);
+ for (j = 0; j < num_rates; j++)
+ if (bitrates[j].bitrate == own_rate)
+ supp_rates |= BIT(j);
+ }
+ return supp_rates;
+}
+
static void ieee80211_rx_bss_info(struct net_device *dev,
struct ieee80211_mgmt *mgmt,
beacon_timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
+ if (ieee80211_vif_is_mesh(&sdata->vif) && elems.mesh_id &&
+ elems.mesh_config && mesh_matches_local(&elems, dev)) {
+ u64 rates = ieee80211_sta_get_rates(local, &elems,
+ rx_status->band);
+
+ mesh_neighbour_update(mgmt->sa, rates, dev,
+ mesh_peer_accepts_plinks(&elems, dev));
+ }
+
if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
(sta = sta_info_get(local, mgmt->sa))) {
- struct ieee80211_supported_band *sband;
- struct ieee80211_rate *bitrates;
- size_t num_rates;
- u64 supp_rates, prev_rates;
- int i, j;
-
- sband = local->hw.wiphy->bands[rx_status->band];
-
- if (!sband) {
- WARN_ON(1);
- sband = local->hw.wiphy->bands[
- local->hw.conf.channel->band];
- }
-
- bitrates = sband->bitrates;
- num_rates = sband->n_bitrates;
-
- supp_rates = 0;
- for (i = 0; i < elems.supp_rates_len +
- elems.ext_supp_rates_len; i++) {
- u8 rate = 0;
- int own_rate;
- if (i < elems.supp_rates_len)
- rate = elems.supp_rates[i];
- else if (elems.ext_supp_rates)
- rate = elems.ext_supp_rates
- [i - elems.supp_rates_len];
- own_rate = 5 * (rate & 0x7f);
- for (j = 0; j < num_rates; j++)
- if (bitrates[j].bitrate == own_rate)
- supp_rates |= BIT(j);
- }
+ u64 prev_rates;
+ u64 supp_rates = ieee80211_sta_get_rates(local, &elems,
+ rx_status->band);
prev_rates = sta->supp_rates[rx_status->band];
sta->supp_rates[rx_status->band] &= supp_rates;
sta_info_put(sta);
}
- if (!elems.ssid)
- return;
-
if (elems.ds_params && elems.ds_params_len == 1)
freq = ieee80211_channel_to_frequency(elems.ds_params[0]);
else
freq = rx_status->freq;
- bss = ieee80211_rx_bss_get(dev, mgmt->bssid, freq,
- elems.ssid, elems.ssid_len);
- if (!bss) {
- bss = ieee80211_rx_bss_add(dev, mgmt->bssid, freq,
+#ifdef CONFIG_MAC80211_MESH
+ if (elems.mesh_config)
+ bss = ieee80211_rx_mesh_bss_get(dev, elems.mesh_id,
+ elems.mesh_id_len, elems.mesh_config, freq);
+ else
+#endif
+ bss = ieee80211_rx_bss_get(dev, mgmt->bssid, freq,
elems.ssid, elems.ssid_len);
+ if (!bss) {
+#ifdef CONFIG_MAC80211_MESH
+ if (elems.mesh_config)
+ bss = ieee80211_rx_mesh_bss_add(dev, elems.mesh_id,
+ elems.mesh_id_len, elems.mesh_config, freq);
+ else
+#endif
+ bss = ieee80211_rx_bss_add(dev, mgmt->bssid, freq,
+ elems.ssid, elems.ssid_len);
if (!bss)
return;
} else {
static void ieee80211_rx_mgmt_action(struct net_device *dev,
struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
- size_t len)
+ size_t len,
+ struct ieee80211_rx_status *rx_status)
{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
if (len < IEEE80211_MIN_ACTION_SIZE)
return;
break;
}
break;
+ case PLINK_CATEGORY:
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ mesh_rx_plink_frame(dev, mgmt, len, rx_status);
+ break;
+ case MESH_PATH_SEL_CATEGORY:
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ mesh_rx_path_sel_frame(dev, mgmt, len);
+ break;
default:
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: Rx unknown action frame - "
+ "category=%d\n", dev->name, mgmt->u.action.category);
break;
}
}
case IEEE80211_STYPE_PROBE_REQ:
case IEEE80211_STYPE_PROBE_RESP:
case IEEE80211_STYPE_BEACON:
+ case IEEE80211_STYPE_ACTION:
memcpy(skb->cb, rx_status, sizeof(*rx_status));
case IEEE80211_STYPE_AUTH:
case IEEE80211_STYPE_ASSOC_RESP:
case IEEE80211_STYPE_REASSOC_RESP:
case IEEE80211_STYPE_DEAUTH:
case IEEE80211_STYPE_DISASSOC:
- case IEEE80211_STYPE_ACTION:
skb_queue_tail(&ifsta->skb_queue, skb);
queue_work(local->hw.workqueue, &ifsta->work);
return;
ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len);
break;
case IEEE80211_STYPE_ACTION:
- ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len);
+ ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len, rx_status);
break;
}
}
-static void ieee80211_sta_expire(struct net_device *dev)
+static void ieee80211_sta_expire(struct net_device *dev, unsigned long exp_time)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct sta_info *sta, *tmp;
write_lock_bh(&local->sta_lock);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
- if (time_after(jiffies, sta->last_rx +
- IEEE80211_IBSS_INACTIVITY_LIMIT)) {
+ if (time_after(jiffies, sta->last_rx + exp_time)) {
printk(KERN_DEBUG "%s: expiring inactive STA %s\n",
dev->name, print_mac(mac, sta->addr));
__sta_info_get(sta);
{
mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
- ieee80211_sta_expire(dev);
+ ieee80211_sta_expire(dev, IEEE80211_IBSS_INACTIVITY_LIMIT);
if (ieee80211_sta_active_ibss(dev))
return;
}
+#ifdef CONFIG_MAC80211_MESH
+static void ieee80211_mesh_housekeeping(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ bool free_plinks;
+
+ ieee80211_sta_expire(dev, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
+ mesh_path_expire(dev);
+
+ free_plinks = mesh_plink_availables(sdata);
+ if (free_plinks != sdata->u.sta.accepting_plinks)
+ ieee80211_if_config_beacon(dev);
+
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_MESH_HOUSEKEEPING_INTERVAL);
+}
+
+
+void ieee80211_start_mesh(struct net_device *dev)
+{
+ struct ieee80211_if_sta *ifsta;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ifsta = &sdata->u.sta;
+ ifsta->state = IEEE80211_MESH_UP;
+ ieee80211_sta_timer((unsigned long)sdata);
+}
+#endif
+
+
void ieee80211_sta_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata =
queue_work(local->hw.workqueue, &ifsta->work);
}
-
void ieee80211_sta_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
return;
if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
+ sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+ sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) {
printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface "
"(type=%d)\n", dev->name, sdata->vif.type);
return;
while ((skb = skb_dequeue(&ifsta->skb_queue)))
ieee80211_sta_rx_queued_mgmt(dev, skb);
+#ifdef CONFIG_MAC80211_MESH
+ if (ifsta->preq_queue_len &&
+ time_after(jiffies,
+ ifsta->last_preq + msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval)))
+ mesh_path_start_discovery(dev);
+#endif
+
if (ifsta->state != IEEE80211_AUTHENTICATE &&
ifsta->state != IEEE80211_ASSOCIATE &&
test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
case IEEE80211_IBSS_JOINED:
ieee80211_sta_merge_ibss(dev, ifsta);
break;
+#ifdef CONFIG_MAC80211_MESH
+ case IEEE80211_MESH_UP:
+ ieee80211_mesh_housekeeping(dev, ifsta);
+ break;
+#endif
default:
printk(KERN_DEBUG "ieee80211_sta_work: Unknown state %d\n",
ifsta->state);
sband = local->hw.wiphy->bands[bss->band];
if (local->hw.conf.beacon_int == 0)
- local->hw.conf.beacon_int = 100;
+ local->hw.conf.beacon_int = 10000;
bss->beacon_int = local->hw.conf.beacon_int;
bss->last_update = jiffies;
bss->capability = WLAN_CAPABILITY_IBSS;
ieee80211_sta_timer((unsigned long)sdata);
}
+ if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
+ ieee80211_sta_timer((unsigned long)sdata);
+
netif_wake_queue(sdata->dev);
}
rcu_read_unlock();
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = SIOCGIWESSID;
- iwe.u.data.length = bss->ssid_len;
- iwe.u.data.flags = 1;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- bss->ssid);
+ if (bss_mesh_cfg(bss)) {
+ iwe.u.data.length = bss_mesh_id_len(bss);
+ iwe.u.data.flags = 1;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ bss_mesh_id(bss));
+ } else {
+ iwe.u.data.length = bss->ssid_len;
+ iwe.u.data.flags = 1;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ bss->ssid);
+ }
- if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
+ if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS
+ || bss_mesh_cfg(bss))) {
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = SIOCGIWMODE;
- if (bss->capability & WLAN_CAPABILITY_ESS)
+ if (bss_mesh_cfg(bss))
+ iwe.u.mode = IW_MODE_MESH;
+ else if (bss->capability & WLAN_CAPABILITY_ESS)
iwe.u.mode = IW_MODE_MASTER;
else
iwe.u.mode = IW_MODE_ADHOC;
}
}
+ if (bss_mesh_cfg(bss)) {
+ char *buf;
+ u8 *cfg = bss_mesh_cfg(bss);
+ buf = kmalloc(200, GFP_ATOMIC);
+ if (buf) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, "Mesh network (version %d)\n"
+ "\t\t\tPath Selection Protocol ID: 0x%02X%02X%02X%02X\n"
+ "\t\t\tPath Selection Metric ID: 0x%02X%02X%02X%02X\n"
+ "\t\t\tCongestion Control Mode ID: 0x%02X%02X%02X%02X\n"
+ "\t\t\tChannel Precedence: 0x%02X%02X%02X%02X",
+ cfg[0], cfg[1], cfg[2], cfg[3], cfg[4], cfg[5], cfg[6],
+ cfg[7], cfg[8], cfg[9], cfg[10], cfg[11], cfg[12],
+ cfg[13], cfg[14], cfg[15], cfg[16]);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(current_ev, end_buf,
+ &iwe, buf);
+ kfree(buf);
+ }
+ }
+
return current_ev;
}
projects / deliverable / linux.git / blobdiff