]> pilppa.com Git - linux-2.6-omap-h63xx.git/commitdiff
mac80211: mesh data structures and first mesh changes
authorLuis Carlos Cobo <luisca@cozybit.com>
Sat, 23 Feb 2008 14:17:11 +0000 (15:17 +0100)
committerJohn W. Linville <linville@tuxdriver.com>
Thu, 6 Mar 2008 20:30:41 +0000 (15:30 -0500)
Includes integration in struct sta_info of mesh peer link elements, previously
on their own mesh peer link table.

Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
net/mac80211/cfg.c
net/mac80211/ieee80211.c
net/mac80211/ieee80211_i.h
net/mac80211/ieee80211_iface.c
net/mac80211/ieee80211_ioctl.c
net/mac80211/ieee80211_sta.c
net/mac80211/rc80211_pid_algo.c
net/mac80211/sta_info.c
net/mac80211/sta_info.h
net/mac80211/util.c

index 006da6a2e71b04ebf851994b6010aedbc75886fd..0e97ceee640ca5d3017face1fbabdc8526d2b63d 100644 (file)
@@ -50,7 +50,7 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
        if (itype == IEEE80211_IF_TYPE_INVALID)
                return -EINVAL;
 
-       err = ieee80211_if_add(local->mdev, name, &dev, itype);
+       err = ieee80211_if_add(local->mdev, name, &dev, itype, params);
        if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags)
                return err;
 
index 1ddb8e1b6ab6c4864e67872189d621ebd4005809..190917a74c3ef4051657b88c813b87b61731e6be 100644 (file)
@@ -1663,7 +1663,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
        /* add one default STA interface */
        result = ieee80211_if_add(local->mdev, "wlan%d", NULL,
-                                 IEEE80211_IF_TYPE_STA);
+                                 IEEE80211_IF_TYPE_STA, NULL);
        if (result)
                printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
                       wiphy_name(local->hw.wiphy));
index b07b3cbfd03902f8a20287a145b6d196f8c1dfc7..49466b6996d18e468cc6ee43c87c1b115e259982 100644 (file)
@@ -90,6 +90,12 @@ struct ieee80211_sta_bss {
        size_t wmm_ie_len;
        u8 *ht_ie;
        size_t ht_ie_len;
+#ifdef CONFIG_MAC80211_MESH
+       u8 *mesh_id;
+       size_t mesh_id_len;
+#endif
+       /* mesh_cfg left out the ifdef to reduce clutter on bss handling */
+       u8 *mesh_cfg;
 #define IEEE80211_MAX_SUPP_RATES 32
        u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
        size_t supp_rates_len;
@@ -227,6 +233,43 @@ struct ieee80211_if_vlan {
        struct list_head list;
 };
 
+#ifdef CONFIG_MAC80211_MESH
+struct mesh_stats {
+       __u32 fwded_frames;             /* Mesh forwarded frames */
+       __u32 dropped_frames_ttl;       /* Not transmitted since mesh_ttl == 0*/
+       __u32 dropped_frames_no_route;  /* Not transmitted, no route found */
+       atomic_t estab_plinks;
+};
+
+#define PREQ_Q_F_START         0x1
+#define PREQ_Q_F_REFRESH       0x2
+struct mesh_preq_queue {
+       struct list_head list;
+       u8 dst[ETH_ALEN];
+       u8 flags;
+};
+
+
+struct mesh_config {
+       /* Timeouts in ms */
+       /* Mesh plink management parameters */
+       u16 dot11MeshRetryTimeout;
+       u16 dot11MeshConfirmTimeout;
+       u16 dot11MeshHoldingTimeout;
+       u16 dot11MeshMaxPeerLinks;
+       u8  dot11MeshMaxRetries;
+       u8  dot11MeshTTL;
+       bool auto_open_plinks;
+       /* HWMP parameters */
+       u32 dot11MeshHWMPactivePathTimeout;
+       u16 dot11MeshHWMPpreqMinInterval;
+       u16 dot11MeshHWMPnetDiameterTraversalTime;
+       u8  dot11MeshHWMPmaxPREQretries;
+       u32 path_refresh_time;
+       u16 min_discovery_timeout;
+};
+#endif
+
 /* flags used in struct ieee80211_if_sta.flags */
 #define IEEE80211_STA_SSID_SET         BIT(0)
 #define IEEE80211_STA_BSSID_SET                BIT(1)
@@ -245,7 +288,8 @@ struct ieee80211_if_sta {
        enum {
                IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
                IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
-               IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
+               IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED,
+               IEEE80211_MESH_UP
        } state;
        struct timer_list timer;
        struct work_struct work;
@@ -254,6 +298,34 @@ struct ieee80211_if_sta {
        size_t ssid_len;
        u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
        size_t scan_ssid_len;
+#ifdef CONFIG_MAC80211_MESH
+       struct timer_list mesh_path_timer;
+       u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
+       bool accepting_plinks;
+       size_t mesh_id_len;
+       /* Active Path Selection Protocol Identifier */
+       u8 mesh_pp_id[4];
+       /* Active Path Selection Metric Identifier */
+       u8 mesh_pm_id[4];
+       /* Congestion Control Mode Identifier */
+       u8 mesh_cc_id[4];
+       /* Local mesh Destination Sequence Number */
+       u32 dsn;
+       /* Last used PREQ ID */
+       u32 preq_id;
+       atomic_t mpaths;
+       /* Timestamp of last DSN update */
+       unsigned long last_dsn_update;
+       /* Timestamp of last DSN sent */
+       unsigned long last_preq;
+       struct mesh_rmc *rmc;
+       spinlock_t mesh_preq_queue_lock;
+       struct mesh_preq_queue preq_queue;
+       int preq_queue_len;
+       struct mesh_stats mshstats;
+       struct mesh_config mshcfg;
+       u8 mesh_seqnum[3];
+#endif
        u16 aid;
        u16 ap_capab, capab;
        u8 *extra_ie; /* to be added to the end of AssocReq */
@@ -286,6 +358,7 @@ struct ieee80211_if_sta {
        u32 supp_rates_bits[IEEE80211_NUM_BANDS];
 
        int wmm_last_param_set;
+       int num_beacons; /* number of TXed beacon frames by this STA */
 };
 
 
@@ -365,6 +438,7 @@ struct ieee80211_sub_if_data {
                        struct dentry *auth_alg;
                        struct dentry *auth_transaction;
                        struct dentry *flags;
+                       struct dentry *num_beacons_sta;
                } sta;
                struct {
                        struct dentry *channel_use;
@@ -390,6 +464,35 @@ struct ieee80211_sub_if_data {
                } monitor;
                struct dentry *default_key;
        } debugfs;
+
+#ifdef CONFIG_MAC80211_MESH
+       struct dentry *mesh_stats_dir;
+       struct {
+               struct dentry *fwded_frames;
+               struct dentry *dropped_frames_ttl;
+               struct dentry *dropped_frames_no_route;
+               struct dentry *estab_plinks;
+       struct timer_list mesh_path_timer;
+       } mesh_stats;
+
+       struct dentry *mesh_config_dir;
+       struct {
+               struct dentry *dot11MeshRetryTimeout;
+               struct dentry *dot11MeshConfirmTimeout;
+               struct dentry *dot11MeshHoldingTimeout;
+               struct dentry *dot11MeshMaxRetries;
+               struct dentry *dot11MeshTTL;
+               struct dentry *auto_open_plinks;
+               struct dentry *dot11MeshMaxPeerLinks;
+               struct dentry *dot11MeshHWMPactivePathTimeout;
+               struct dentry *dot11MeshHWMPpreqMinInterval;
+               struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
+               struct dentry *dot11MeshHWMPmaxPREQretries;
+               struct dentry *path_refresh_time;
+               struct dentry *min_discovery_timeout;
+       } mesh_config;
+#endif
+
 #endif
        /* must be last, dynamically sized area in this! */
        struct ieee80211_vif vif;
@@ -617,6 +720,57 @@ struct ieee80211_ra_tid {
        u16 tid;
 };
 
+/* 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;
+       u8 *mesh_config;
+       u8 *mesh_id;
+       u8 *peer_link;
+       u8 *preq;
+       u8 *prep;
+       u8 *perr;
+
+       /* 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;
+       u8 mesh_config_len;
+       u8 mesh_id_len;
+       u8 peer_link_len;
+       u8 preq_len;
+       u8 prep_len;
+       u8 perr_len;
+};
+
 static inline struct ieee80211_local *hw_to_local(
        struct ieee80211_hw *hw)
 {
@@ -686,6 +840,7 @@ int ieee80211_set_compression(struct ieee80211_local *local,
                              struct net_device *dev, struct sta_info *sta);
 int ieee80211_set_freq(struct ieee80211_local *local, int freq);
 /* ieee80211_sta.c */
+#define IEEE80211_FC(type, stype) cpu_to_le16(type | stype)
 void ieee80211_sta_timer(unsigned long data);
 void ieee80211_sta_work(struct work_struct *work);
 void ieee80211_sta_scan_work(struct work_struct *work);
@@ -726,9 +881,20 @@ void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
                                u16 tid, u16 initiator, u16 reason);
 void sta_rx_agg_session_timer_expired(unsigned long data);
 void sta_addba_resp_timer_expired(unsigned long data);
+u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
+                           struct ieee802_11_elems *elems,
+                           enum ieee80211_band band);
+void ieee80211_start_mesh(struct net_device *dev);
+void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
+               int encrypt);
+void ieee802_11_parse_elems(u8 *start, size_t len,
+                                  struct ieee802_11_elems *elems);
+
+
 /* ieee80211_iface.c */
 int ieee80211_if_add(struct net_device *dev, const char *name,
-                    struct net_device **new_dev, int type);
+                    struct net_device **new_dev, int type,
+                    struct vif_params *params);
 void ieee80211_if_set_type(struct net_device *dev, int type);
 void ieee80211_if_reinit(struct net_device *dev);
 void __ieee80211_if_del(struct ieee80211_local *local,
index 9523aeb7103288ce9fdab07e2f918e5cbc11f258..c2f92b78bfc913e890ef8646749e0db286ca9fbf 100644 (file)
@@ -15,6 +15,9 @@
 #include "ieee80211_i.h"
 #include "sta_info.h"
 #include "debugfs_netdev.h"
+#ifdef CONFIG_MAC80211_MESH
+#include "mesh.h"
+#endif
 
 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
 {
@@ -39,7 +42,8 @@ static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
 
 /* Must be called with rtnl lock held. */
 int ieee80211_if_add(struct net_device *dev, const char *name,
-                    struct net_device **new_dev, int type)
+                    struct net_device **new_dev, int type,
+                    struct vif_params *params)
 {
        struct net_device *ndev;
        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
@@ -78,6 +82,15 @@ int ieee80211_if_add(struct net_device *dev, const char *name,
        ieee80211_debugfs_add_netdev(sdata);
        ieee80211_if_set_type(ndev, type);
 
+#ifdef CONFIG_MAC80211_MESH
+       if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT &&
+           params && params->mesh_id_len) {
+               sdata->u.sta.mesh_id_len = params->mesh_id_len;
+               memcpy(sdata->u.sta.mesh_id, params->mesh_id,
+                      params->mesh_id_len);
+       }
+#endif
+
        /* we're under RTNL so all this is fine */
        if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
                __ieee80211_if_del(local, sdata);
@@ -134,6 +147,7 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
                sdata->bss = &sdata->u.ap;
                INIT_LIST_HEAD(&sdata->u.ap.vlans);
                break;
+       case IEEE80211_IF_TYPE_MESH_POINT:
        case IEEE80211_IF_TYPE_STA:
        case IEEE80211_IF_TYPE_IBSS: {
                struct ieee80211_sub_if_data *msdata;
@@ -155,6 +169,48 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
 
                msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
                sdata->bss = &msdata->u.ap;
+
+#ifdef CONFIG_MAC80211_MESH
+               if (type == IEEE80211_IF_TYPE_MESH_POINT) {
+                       ifsta->mshcfg.dot11MeshRetryTimeout = MESH_RET_T;
+                       ifsta->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T;
+                       ifsta->mshcfg.dot11MeshHoldingTimeout = MESH_HOLD_T;
+                       ifsta->mshcfg.dot11MeshMaxRetries = MESH_MAX_RETR;
+                       ifsta->mshcfg.dot11MeshTTL = MESH_TTL;
+                       ifsta->mshcfg.auto_open_plinks = true;
+                       ifsta->mshcfg.dot11MeshMaxPeerLinks =
+                               MESH_MAX_ESTAB_PLINKS;
+                       ifsta->mshcfg.dot11MeshHWMPactivePathTimeout =
+                               MESH_PATH_TIMEOUT;
+                       ifsta->mshcfg.dot11MeshHWMPpreqMinInterval =
+                               MESH_PREQ_MIN_INT;
+                       ifsta->mshcfg.dot11MeshHWMPnetDiameterTraversalTime =
+                               MESH_DIAM_TRAVERSAL_TIME;
+                       ifsta->mshcfg.dot11MeshHWMPmaxPREQretries =
+                               MESH_MAX_PREQ_RETRIES;
+                       ifsta->mshcfg.path_refresh_time =
+                               MESH_PATH_REFRESH_TIME;
+                       ifsta->mshcfg.min_discovery_timeout =
+                               MESH_MIN_DISCOVERY_TIMEOUT;
+                       ifsta->accepting_plinks = true;
+                       ifsta->preq_id = 0;
+                       ifsta->dsn = 0;
+                       atomic_set(&ifsta->mpaths, 0);
+                       mesh_rmc_init(dev);
+                       ifsta->last_preq = jiffies;
+                       /* Allocate all mesh structures when creating the first
+                        * mesh interface.
+                        */
+                       if (!mesh_allocated)
+                               ieee80211s_init();
+                       mesh_ids_set_default(ifsta);
+                       setup_timer(&ifsta->mesh_path_timer,
+                                   ieee80211_mesh_path_timer,
+                                   (unsigned long) sdata);
+                       INIT_LIST_HEAD(&ifsta->preq_queue.list);
+                       spin_lock_init(&ifsta->mesh_preq_queue_lock);
+               }
+#endif
                break;
        }
        case IEEE80211_IF_TYPE_MNTR:
@@ -236,6 +292,10 @@ void ieee80211_if_reinit(struct net_device *dev)
                }
                break;
        case IEEE80211_IF_TYPE_MESH_POINT:
+#ifdef CONFIG_MAC80211_MESH
+               mesh_rmc_free(dev);
+#endif
+               /* fall through */
        case IEEE80211_IF_TYPE_STA:
        case IEEE80211_IF_TYPE_IBSS:
                kfree(sdata->u.sta.extra_ie);
index 7551db3f3abc7c75a993154092e96fcb6438e11f..38e2d83e15f4014dddb1b175ca558392016616e7 100644 (file)
@@ -525,6 +525,7 @@ static int ieee80211_ioctl_siwscan(struct net_device *dev,
 
        if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
            sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+           sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT &&
            sdata->vif.type != IEEE80211_IF_TYPE_AP)
                return -EOPNOTSUPP;
 
index ddb5832f37cbe1377ed26b6f526b48a7f9403c39..b4b498ae60f2f7230321eed4d5d6d22bf9ab095a 100644 (file)
@@ -87,46 +87,8 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
                                     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;
@@ -215,6 +177,30 @@ static void ieee802_11_parse_elems(u8 *start, size_t len,
                        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;
                }
@@ -501,8 +487,8 @@ static void ieee80211_set_disassoc(struct net_device *dev,
        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;
index 9762803e48762ba6dcc5785d0a80b0dc937d8a64..4a51647a41af4bcd1c06af2afe14e32d02ce5636 100644 (file)
@@ -15,6 +15,9 @@
 #include <linux/debugfs.h>
 #include <net/mac80211.h>
 #include "ieee80211_rate.h"
+#ifdef CONFIG_MAC80211_MESH
+#include "mesh.h"
+#endif
 
 #include "rc80211_pid.h"
 
@@ -148,6 +151,9 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
                                    struct ieee80211_local *local,
                                    struct sta_info *sta)
 {
+#ifdef CONFIG_MAC80211_MESH
+       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+#endif
        struct rc_pid_sta_info *spinfo = sta->rate_ctrl_priv;
        struct rc_pid_rateinfo *rinfo = pinfo->rinfo;
        struct ieee80211_supported_band *sband;
@@ -178,7 +184,14 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
                pf = spinfo->last_pf;
        else {
                pf = spinfo->tx_num_failed * 100 / spinfo->tx_num_xmit;
+#ifdef CONFIG_MAC80211_MESH
+               if (pf == 100 &&
+                   sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
+                       mesh_plink_broken(sta);
+#endif
                pf <<= RC_PID_ARITH_SHIFT;
+               sta->fail_avg = ((pf + (spinfo->last_pf << 3)) / 9)
+                                       >> RC_PID_ARITH_SHIFT;
        }
 
        spinfo->tx_num_xmit = 0;
@@ -357,6 +370,7 @@ static void rate_control_pid_rate_init(void *priv, void *priv_sta,
 
        sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
        sta->txrate_idx = rate_lowest_index(local, sband, sta);
+       sta->fail_avg = 0;
 }
 
 static void *rate_control_pid_alloc(struct ieee80211_local *local)
index e384e6632d9737d0bbc9c998dc8cc16d0bf575ed..1f3c9eb985009c5453cebb895472e9b82f074b28 100644 (file)
@@ -21,6 +21,9 @@
 #include "ieee80211_rate.h"
 #include "sta_info.h"
 #include "debugfs_sta.h"
+#ifdef CONFIG_MAC80211_MESH
+#include "mesh.h"
+#endif
 
 /* Caller must hold local->sta_lock */
 static void sta_info_hash_add(struct ieee80211_local *local,
@@ -84,6 +87,27 @@ struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
 }
 EXPORT_SYMBOL(sta_info_get);
 
+struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
+                                    struct net_device *dev)
+{
+       struct sta_info *sta;
+       int i = 0;
+
+       read_lock_bh(&local->sta_lock);
+       list_for_each_entry(sta, &local->sta_list, list) {
+               if (i < idx) {
+                       ++i;
+                       continue;
+               } else if (!dev || dev == sta->dev) {
+                       __sta_info_get(sta);
+                       read_unlock_bh(&local->sta_lock);
+                       return sta;
+               }
+       }
+       read_unlock_bh(&local->sta_lock);
+
+       return NULL;
+}
 
 static void sta_info_release(struct kref *kref)
 {
@@ -284,12 +308,19 @@ void sta_info_remove(struct sta_info *sta)
                __sta_info_clear_tim_bit(sdata->bss, sta);
        }
        local->num_sta--;
+
+#ifdef CONFIG_MAC80211_MESH
+       if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
+               mesh_accept_plinks_update(sdata->dev);
+#endif
 }
 
 void sta_info_free(struct sta_info *sta)
 {
        struct sk_buff *skb;
        struct ieee80211_local *local = sta->local;
+       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+
        DECLARE_MAC_BUF(mac);
 
        might_sleep();
@@ -298,6 +329,14 @@ void sta_info_free(struct sta_info *sta)
        sta_info_remove(sta);
        write_unlock_bh(&local->sta_lock);
 
+#ifdef CONFIG_MAC80211_MESH
+       if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) {
+               spin_lock_bh(&sta->plink_lock);
+               mesh_plink_deactivate(sta);
+               spin_unlock_bh(&sta->plink_lock);
+       }
+#endif
+
        while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
                local->total_ps_buffered--;
                dev_kfree_skb(skb);
@@ -315,9 +354,6 @@ void sta_info_free(struct sta_info *sta)
        WARN_ON(sta->key);
 
        if (local->ops->sta_notify) {
-               struct ieee80211_sub_if_data *sdata;
-
-               sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
 
                if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
                        sdata = sdata->u.vlan.ap;
index 86eed40ada7820381175a154b05b09f21bf8b558..9d1d7a0e3114191461f95ca9bbbdb182d59e0e58 100644 (file)
@@ -107,6 +107,18 @@ struct tid_ampdu_rx {
        struct timer_list session_timer;
 };
 
+#ifdef CONFIG_MAC80211_MESH
+enum plink_state {
+       LISTEN,
+       OPN_SNT,
+       OPN_RCVD,
+       CNF_RCVD,
+       ESTAB,
+       HOLDING,
+       BLOCKED
+};
+#endif
+
 /**
  * struct sta_ampdu_mlme - STA aggregation information.
  *
@@ -144,6 +156,8 @@ struct sta_info {
        unsigned long rx_bytes, tx_bytes;
        unsigned long tx_retry_failed, tx_retry_count;
        unsigned long tx_filtered_count;
+       /* moving percentage of failed MSDUs */
+       unsigned int fail_avg;
 
        unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
 
@@ -192,6 +206,20 @@ struct sta_info {
        struct sta_ampdu_mlme ampdu_mlme;
        u8 timer_to_tid[STA_TID_NUM];   /* convert timer id to tid */
        u8 tid_to_tx_q[STA_TID_NUM];    /* map tid to tx queue */
+#ifdef CONFIG_MAC80211_MESH
+       /* mesh peer link attributes */
+       __le16 llid;            /* Local link ID */
+       __le16 plid;            /* Peer link ID */
+       __le16 reason;          /* Buffer for cancel reason on HOLDING state */
+       enum plink_state plink_state;
+       u32 plink_timeout;
+       struct timer_list plink_timer;
+       u8 plink_retries;       /* Retries in establishment */
+       bool ignore_plink_timer;
+       spinlock_t plink_lock;  /* For peer_state reads / updates and other
+                                  updates in the structure. Ensures robust
+                                  transitions for the peerlink FSM */
+#endif
 
 #ifdef CONFIG_MAC80211_DEBUGFS
        struct sta_info_debugfsdentries {
@@ -234,6 +262,8 @@ static inline void __sta_info_get(struct sta_info *sta)
 }
 
 struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
+struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
+                                     struct net_device *dev);
 void sta_info_put(struct sta_info *sta);
 struct sta_info *sta_info_add(struct ieee80211_local *local,
                              struct net_device *dev, u8 *addr, gfp_t gfp);
index 790c32f894c0e784c77195871f9c6d47b218bfe1..6b50b6c12da38ce11ab1f300154f843e11bd76a3 100644 (file)
@@ -26,6 +26,9 @@
 
 #include "ieee80211_i.h"
 #include "ieee80211_rate.h"
+#ifdef CONFIG_MAC80211_MESH
+#include "mesh.h"
+#endif
 #include "wme.h"
 
 /* privid for wiphys to determine whether they belong to us or not */
@@ -146,6 +149,26 @@ int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
 }
 EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
 
+#ifdef CONFIG_MAC80211_MESH
+int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
+{
+       int ae = meshhdr->flags & IEEE80211S_FLAGS_AE;
+       /* 7.1.3.5a.2 */
+       switch (ae) {
+       case 0:
+               return 5;
+       case 1:
+               return 11;
+       case 2:
+               return 17;
+       case 3:
+               return 23;
+       default:
+               return 5;
+       }
+}
+#endif
+
 void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
 {
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
@@ -395,3 +418,31 @@ void ieee80211_iterate_active_interfaces(
        rcu_read_unlock();
 }
 EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
+
+#ifdef CONFIG_MAC80211_MESH
+/**
+ * ieee80211_new_mesh_header - create a new mesh header
+ * @meshhdr:    uninitialized mesh header
+ * @sdata:     mesh interface to be used
+ *
+ * Return the header length.
+ */
+int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
+               struct ieee80211_sub_if_data *sdata)
+{
+       meshhdr->flags = 0;
+       meshhdr->ttl = sdata->u.sta.mshcfg.dot11MeshTTL;
+
+       meshhdr->seqnum[0] = sdata->u.sta.mesh_seqnum[0]++;
+       meshhdr->seqnum[1] = sdata->u.sta.mesh_seqnum[1];
+       meshhdr->seqnum[2] = sdata->u.sta.mesh_seqnum[2];
+
+       if (sdata->u.sta.mesh_seqnum[0] == 0) {
+               sdata->u.sta.mesh_seqnum[1]++;
+               if (sdata->u.sta.mesh_seqnum[1] == 0)
+                       sdata->u.sta.mesh_seqnum[2]++;
+       }
+
+       return 5;
+}
+#endif