Commit ee385855 authored by Luis Carlos Cobo's avatar Luis Carlos Cobo Committed by John W. Linville

mac80211: mesh data structures and first mesh changes

Includes integration in struct sta_info of mesh peer link elements, previously
on their own mesh peer link table.
Signed-off-by: default avatarLuis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 33b64eb2
......@@ -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;
......
......@@ -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));
......
......@@ -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,
......
......@@ -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);
......
......@@ -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;
......
......@@ -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;
......
......@@ -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)
......
......@@ -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;
......
......@@ -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);
......
......@@ -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)
{