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Commit 9e03fdfd05e733e1136d431973625b174029c5e6

Authored by Javier Cardona 2009-08-21 00:21:45 +0800

Committed by John W. Linville 2009-08-29 02:40:24 +0800

Exists in master and in 7 other branches

mac80211: Update mesh config IE to 11s draft 3.02

The mesh config information element has changed significantly since draft 1.08
This patch brings it up to date.

Thanks to Sam Leffler and Rui Paulo for identifying this.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Showing 3 changed files with 39 additions and 16 deletions Inline Diff

include/linux/ieee80211.h
net/mac80211/ieee80211_i.h
net/mac80211/mesh.c

include/linux/ieee80211.h

Diff comments View file @ 9e03fdf

net/mac80211/ieee80211_i.h

Diff comments View file @ 9e03fdf

 /*
  * Copyright 2002-2005, Instant802 Networks, Inc.
  * Copyright 2005, Devicescape Software, Inc.
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007-2008	Johannes Berg <johannes@sipsolutions.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
 #ifndef IEEE80211_I_H
 #define IEEE80211_I_H
 #include <linux/kernel.h>
 #include <linux/device.h>
 #include <linux/if_ether.h>
 #include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
 #include <linux/workqueue.h>
 #include <linux/types.h>
 #include <linux/spinlock.h>
 #include <linux/etherdevice.h>
 #include <net/cfg80211.h>
 #include <net/mac80211.h>
 #include "key.h"
 #include "sta_info.h"
 struct ieee80211_local;
 /* Maximum number of broadcast/multicast frames to buffer when some of the
  * associated stations are using power saving. */
 #define AP_MAX_BC_BUFFER 128
 /* Maximum number of frames buffered to all STAs, including multicast frames.
  * Note: increasing this limit increases the potential memory requirement. Each
  * frame can be up to about 2 kB long. */
 #define TOTAL_MAX_TX_BUFFER 512
 /* Required encryption head and tailroom */
 #define IEEE80211_ENCRYPT_HEADROOM 8
 #define IEEE80211_ENCRYPT_TAILROOM 18
 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
  * reception of at least three fragmented frames. This limit can be increased
  * by changing this define, at the cost of slower frame reassembly and
  * increased memory use (about 2 kB of RAM per entry). */
 #define IEEE80211_FRAGMENT_MAX 4
 /*
  * Time after which we ignore scan results and no longer report/use
  * them in any way.
  */
 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
 #define TU_TO_EXP_TIME(x)	(jiffies + usecs_to_jiffies((x) * 1024))
 struct ieee80211_fragment_entry {
 	unsigned long first_frag_time;
 	unsigned int seq;
 	unsigned int rx_queue;
 	unsigned int last_frag;
 	unsigned int extra_len;
 	struct sk_buff_head skb_list;
 	int ccmp; /* Whether fragments were encrypted with CCMP */
 	u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
 };
 struct ieee80211_bss {
 	/* Yes, this is a hack */
 	struct cfg80211_bss cbss;
 	/* don't want to look up all the time */
 	size_t ssid_len;
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
 	u8 dtim_period;
 	bool wmm_used;
 	unsigned long last_probe_resp;
 #ifdef CONFIG_MAC80211_MESH
 	u8 *mesh_id;
 	size_t mesh_id_len;
 	u8 *mesh_cfg;
 #endif
 #define IEEE80211_MAX_SUPP_RATES 32
 	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
 	size_t supp_rates_len;
 	/*
 	 * During assocation, we save an ERP value from a probe response so
 	 * that we can feed ERP info to the driver when handling the
 	 * association completes. these fields probably won't be up-to-date
 	 * otherwise, you probably don't want to use them.
 	 */
 	bool has_erp_value;
 	u8 erp_value;
 };
 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
 {
 #ifdef CONFIG_MAC80211_MESH
 	return bss->mesh_cfg;
 #endif
 	return NULL;
 }
 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
 {
 #ifdef CONFIG_MAC80211_MESH
 	return bss->mesh_id;
 #endif
 	return NULL;
 }
 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
 {
 #ifdef CONFIG_MAC80211_MESH
 	return bss->mesh_id_len;
 #endif
 	return 0;
 }
 typedef unsigned __bitwise__ ieee80211_tx_result;
 #define TX_CONTINUE	((__force ieee80211_tx_result) 0u)
 #define TX_DROP		((__force ieee80211_tx_result) 1u)
 #define TX_QUEUED	((__force ieee80211_tx_result) 2u)
 #define IEEE80211_TX_FRAGMENTED		BIT(0)
 #define IEEE80211_TX_UNICAST		BIT(1)
 #define IEEE80211_TX_PS_BUFFERED	BIT(2)
 struct ieee80211_tx_data {
 	struct sk_buff *skb;
 	struct net_device *dev;
 	struct ieee80211_local *local;
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
 	struct ieee80211_key *key;
 	struct ieee80211_channel *channel;
 	u16 ethertype;
 	unsigned int flags;
 };
 typedef unsigned __bitwise__ ieee80211_rx_result;
 #define RX_CONTINUE		((__force ieee80211_rx_result) 0u)
 #define RX_DROP_UNUSABLE	((__force ieee80211_rx_result) 1u)
 #define RX_DROP_MONITOR		((__force ieee80211_rx_result) 2u)
 #define RX_QUEUED		((__force ieee80211_rx_result) 3u)
 #define IEEE80211_RX_IN_SCAN		BIT(0)
 /* frame is destined to interface currently processed (incl. multicast frames) */
 #define IEEE80211_RX_RA_MATCH		BIT(1)
 #define IEEE80211_RX_AMSDU		BIT(2)
 #define IEEE80211_RX_CMNTR_REPORTED	BIT(3)
 #define IEEE80211_RX_FRAGMENTED		BIT(4)
 struct ieee80211_rx_data {
 	struct sk_buff *skb;
 	struct net_device *dev;
 	struct ieee80211_local *local;
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
 	struct ieee80211_key *key;
 	struct ieee80211_rx_status *status;
 	struct ieee80211_rate *rate;
 	unsigned int flags;
 	int sent_ps_buffered;
 	int queue;
 	u32 tkip_iv32;
 	u16 tkip_iv16;
 };
 struct beacon_data {
 	u8 *head, *tail;
 	int head_len, tail_len;
 	int dtim_period;
 };
 struct ieee80211_if_ap {
 	struct beacon_data *beacon;
 	struct list_head vlans;
 	/* yes, this looks ugly, but guarantees that we can later use
 	 * bitmap_empty :)
 	 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
 	u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
 	struct sk_buff_head ps_bc_buf;
 	atomic_t num_sta_ps; /* number of stations in PS mode */
 	int dtim_count;
 };
 struct ieee80211_if_wds {
 	struct sta_info *sta;
 	u8 remote_addr[ETH_ALEN];
 };
 struct ieee80211_if_vlan {
 	struct list_head list;
 };
 struct mesh_stats {
 	__u32 fwded_mcast;		/* Mesh forwarded multicast frames */
 	__u32 fwded_unicast;		/* Mesh forwarded unicast frames */
 	__u32 fwded_frames;		/* Mesh total 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;
 };
 enum ieee80211_mgd_state {
 	IEEE80211_MGD_STATE_IDLE,
 	IEEE80211_MGD_STATE_PROBE,
 	IEEE80211_MGD_STATE_AUTH,
 	IEEE80211_MGD_STATE_ASSOC,
 };
 struct ieee80211_mgd_work {
 	struct list_head list;
 	struct ieee80211_bss *bss;
 	int ie_len;
 	u8 prev_bssid[ETH_ALEN];
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
 	u8 ssid_len;
 	unsigned long timeout;
 	enum ieee80211_mgd_state state;
 	u16 auth_alg, auth_transaction;
 	int tries;
 	u8 key[WLAN_KEY_LEN_WEP104];
 	u8 key_len, key_idx;
 	/* must be last */
 	u8 ie[0]; /* for auth or assoc frame, not probe */
 };
 /* flags used in struct ieee80211_if_managed.flags */
 enum ieee80211_sta_flags {
 	IEEE80211_STA_BEACON_POLL	= BIT(0),
 	IEEE80211_STA_CONNECTION_POLL	= BIT(1),
 	IEEE80211_STA_CONTROL_PORT	= BIT(2),
 	IEEE80211_STA_WMM_ENABLED	= BIT(3),
 	IEEE80211_STA_DISABLE_11N	= BIT(4),
 	IEEE80211_STA_CSA_RECEIVED	= BIT(5),
 	IEEE80211_STA_MFP_ENABLED	= BIT(6),
 };
 /* flags for MLME request */
 enum ieee80211_sta_request {
 	IEEE80211_STA_REQ_SCAN,
 };
 struct ieee80211_if_managed {
 	struct timer_list timer;
 	struct timer_list conn_mon_timer;
 	struct timer_list bcn_mon_timer;
 	struct timer_list chswitch_timer;
 	struct work_struct work;
 	struct work_struct monitor_work;
 	struct work_struct chswitch_work;
 	struct work_struct beacon_loss_work;
 	unsigned long probe_timeout;
 	int probe_send_count;
 	struct mutex mtx;
 	struct ieee80211_bss *associated;
 	struct ieee80211_mgd_work *old_associate_work;
 	struct list_head work_list;
 	u8 bssid[ETH_ALEN];
 	u16 aid;
 	u16 capab;
 	struct sk_buff_head skb_queue;
 	unsigned long timers_running; /* used for quiesce/restart */
 	bool powersave; /* powersave requested for this iface */
 	unsigned long request;
 	unsigned int flags;
 	u32 beacon_crc;
 	enum {
 		IEEE80211_MFP_DISABLED,
 		IEEE80211_MFP_OPTIONAL,
 		IEEE80211_MFP_REQUIRED
 	} mfp; /* management frame protection */
 	int wmm_last_param_set;
 };
 enum ieee80211_ibss_request {
 	IEEE80211_IBSS_REQ_RUN	= 0,
 };
 struct ieee80211_if_ibss {
 	struct timer_list timer;
 	struct work_struct work;
 	struct sk_buff_head skb_queue;
 	unsigned long request;
 	unsigned long last_scan_completed;
 	bool timer_running;
 	bool fixed_bssid;
 	bool fixed_channel;
 	bool privacy;
 	u8 bssid[ETH_ALEN];
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
 	u8 ssid_len, ie_len;
 	u8 *ie;
 	struct ieee80211_channel *channel;
 	unsigned long ibss_join_req;
 	/* probe response/beacon for IBSS */
 	struct sk_buff *presp, *skb;
 	enum {
 		IEEE80211_IBSS_MLME_SEARCH,
 		IEEE80211_IBSS_MLME_JOINED,
 	} state;
 };
 struct ieee80211_if_mesh {
 	struct work_struct work;
 	struct timer_list housekeeping_timer;
 	struct timer_list mesh_path_timer;
 	struct sk_buff_head skb_queue;
 	unsigned long timers_running;
 	unsigned long wrkq_flags;
 	u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
 	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];
+	/* Synchronization Protocol Identifier */
+	u8 mesh_sp_id[4];
+	/* Authentication Protocol Identifier */
+	u8 mesh_auth_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;
 	u32 mesh_seqnum;
 	bool accepting_plinks;
 };
 #ifdef CONFIG_MAC80211_MESH
 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name)	\
 	do { (msh)->mshstats.name++; } while (0)
 #else
 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
 	do { } while (0)
 #endif
 /**
  * enum ieee80211_sub_if_data_flags - virtual interface flags
  *
  * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
  * @IEEE80211_SDATA_PROMISC: interface is promisc
  * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
  * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
  *	associated stations and deliver multicast frames both
  *	back to wireless media and to the local net stack.
  */
 enum ieee80211_sub_if_data_flags {
 	IEEE80211_SDATA_ALLMULTI		= BIT(0),
 	IEEE80211_SDATA_PROMISC			= BIT(1),
 	IEEE80211_SDATA_OPERATING_GMODE		= BIT(2),
 	IEEE80211_SDATA_DONT_BRIDGE_PACKETS	= BIT(3),
 };
 struct ieee80211_sub_if_data {
 	struct list_head list;
 	struct wireless_dev wdev;
 	/* keys */
 	struct list_head key_list;
 	struct net_device *dev;
 	struct ieee80211_local *local;
 	unsigned int flags;
 	int drop_unencrypted;
 	/*
 	 * keep track of whether the HT opmode (stored in
 	 * vif.bss_info.ht_operation_mode) is valid.
 	 */
 	bool ht_opmode_valid;
 	/* Fragment table for host-based reassembly */
 	struct ieee80211_fragment_entry	fragments[IEEE80211_FRAGMENT_MAX];
 	unsigned int fragment_next;
 #define NUM_DEFAULT_KEYS 4
 #define NUM_DEFAULT_MGMT_KEYS 2
 	struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
 	struct ieee80211_key *default_key;
 	struct ieee80211_key *default_mgmt_key;
 	u16 sequence_number;
 	/*
 	 * AP this belongs to: self in AP mode and
 	 * corresponding AP in VLAN mode, NULL for
 	 * all others (might be needed later in IBSS)
 	 */
 	struct ieee80211_if_ap *bss;
 	int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
 	int max_ratectrl_rateidx; /* max TX rateidx for rate control */
 	union {
 		struct ieee80211_if_ap ap;
 		struct ieee80211_if_wds wds;
 		struct ieee80211_if_vlan vlan;
 		struct ieee80211_if_managed mgd;
 		struct ieee80211_if_ibss ibss;
 #ifdef CONFIG_MAC80211_MESH
 		struct ieee80211_if_mesh mesh;
 #endif
 		u32 mntr_flags;
 	} u;
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct dentry *debugfsdir;
 	union {
 		struct {
 			struct dentry *drop_unencrypted;
 			struct dentry *bssid;
 			struct dentry *aid;
 			struct dentry *capab;
 			struct dentry *force_unicast_rateidx;
 			struct dentry *max_ratectrl_rateidx;
 		} sta;
 		struct {
 			struct dentry *drop_unencrypted;
 			struct dentry *num_sta_ps;
 			struct dentry *dtim_count;
 			struct dentry *force_unicast_rateidx;
 			struct dentry *max_ratectrl_rateidx;
 			struct dentry *num_buffered_multicast;
 		} ap;
 		struct {
 			struct dentry *drop_unencrypted;
 			struct dentry *peer;
 			struct dentry *force_unicast_rateidx;
 			struct dentry *max_ratectrl_rateidx;
 		} wds;
 		struct {
 			struct dentry *drop_unencrypted;
 			struct dentry *force_unicast_rateidx;
 			struct dentry *max_ratectrl_rateidx;
 		} vlan;
 		struct {
 			struct dentry *mode;
 		} monitor;
 	} debugfs;
 	struct {
 		struct dentry *default_key;
 		struct dentry *default_mgmt_key;
 	} common_debugfs;
 #ifdef CONFIG_MAC80211_MESH
 	struct dentry *mesh_stats_dir;
 	struct {
 		struct dentry *fwded_mcast;
 		struct dentry *fwded_unicast;
 		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;
 };
 static inline
 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
 {
 	return container_of(p, struct ieee80211_sub_if_data, vif);
 }
 static inline void
 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
 			    u8 mesh_id_len, u8 *mesh_id)
 {
 #ifdef CONFIG_MAC80211_MESH
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	ifmsh->mesh_id_len = mesh_id_len;
 	memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
 #else
 	WARN_ON(1);
 #endif
 }
 enum {
 	IEEE80211_RX_MSG	= 1,
 	IEEE80211_TX_STATUS_MSG	= 2,
 	IEEE80211_DELBA_MSG	= 3,
 	IEEE80211_ADDBA_MSG	= 4,
 };
 enum queue_stop_reason {
 	IEEE80211_QUEUE_STOP_REASON_DRIVER,
 	IEEE80211_QUEUE_STOP_REASON_PS,
 	IEEE80211_QUEUE_STOP_REASON_CSA,
 	IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
 	IEEE80211_QUEUE_STOP_REASON_SUSPEND,
 	IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
 };
 /**
  * mac80211 scan flags - currently active scan mode
  *
  * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
  *	well be on the operating channel
  * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
  *	determine if we are on the operating channel or not
  * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning,
  *	gets only set in conjunction with SCAN_SW_SCANNING
  */
 enum {
 	SCAN_SW_SCANNING,
 	SCAN_HW_SCANNING,
 	SCAN_OFF_CHANNEL,
 };
 /**
  * enum mac80211_scan_state - scan state machine states
  *
  * @SCAN_DECISION: Main entry point to the scan state machine, this state
  *	determines if we should keep on scanning or switch back to the
  *	operating channel
  * @SCAN_SET_CHANNEL: Set the next channel to be scanned
  * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
  * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP
  *	about us leaving the channel and stop all associated STA interfaces
  * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the
  *	AP about us being back and restart all associated STA interfaces
  */
 enum mac80211_scan_state {
 	SCAN_DECISION,
 	SCAN_SET_CHANNEL,
 	SCAN_SEND_PROBE,
 	SCAN_LEAVE_OPER_CHANNEL,
 	SCAN_ENTER_OPER_CHANNEL,
 };
 struct ieee80211_local {
 	/* embed the driver visible part.
 	 * don't cast (use the static inlines below), but we keep
 	 * it first anyway so they become a no-op */
 	struct ieee80211_hw hw;
 	const struct ieee80211_ops *ops;
 	/*
 	 * private workqueue to mac80211. mac80211 makes this accessible
 	 * via ieee80211_queue_work()
 	 */
 	struct workqueue_struct *workqueue;
 	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
 	/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
 	spinlock_t queue_stop_reason_lock;
 	int open_count;
 	int monitors, cooked_mntrs;
 	/* number of interfaces with corresponding FIF_ flags */
 	int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll;
 	unsigned int filter_flags; /* FIF_* */
 	struct iw_statistics wstats;
 	/* protects the aggregated multicast list and filter calls */
 	spinlock_t filter_lock;
 	/* used for uploading changed mc list */
 	struct work_struct reconfig_filter;
 	/* aggregated multicast list */
 	struct dev_addr_list *mc_list;
 	int mc_count;
 	bool tim_in_locked_section; /* see ieee80211_beacon_get() */
 	/*
 	 * suspended is true if we finished all the suspend _and_ we have
 	 * not yet come up from resume. This is to be used by mac80211
 	 * to ensure driver sanity during suspend and mac80211's own
 	 * sanity. It can eventually be used for WoW as well.
 	 */
 	bool suspended;
 	/*
 	 * quiescing is true during the suspend process _only_ to
 	 * ease timer cancelling etc.
 	 */
 	bool quiescing;
 	int tx_headroom; /* required headroom for hardware/radiotap */
 	/* Tasklet and skb queue to process calls from IRQ mode. All frames
 	 * added to skb_queue will be processed, but frames in
 	 * skb_queue_unreliable may be dropped if the total length of these
 	 * queues increases over the limit. */
 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
 	struct tasklet_struct tasklet;
 	struct sk_buff_head skb_queue;
 	struct sk_buff_head skb_queue_unreliable;
 	/* Station data */
 	/*
 	 * The lock only protects the list, hash, timer and counter
 	 * against manipulation, reads are done in RCU. Additionally,
 	 * the lock protects each BSS's TIM bitmap.
 	 */
 	spinlock_t sta_lock;
 	unsigned long num_sta;
 	struct list_head sta_list;
 	struct sta_info *sta_hash[STA_HASH_SIZE];
 	struct timer_list sta_cleanup;
 	int sta_generation;
 	struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
 	struct tasklet_struct tx_pending_tasklet;
 	/*
 	 * This lock is used to prevent concurrent A-MPDU
 	 * session start/stop processing, this thus also
 	 * synchronises the ->ampdu_action() callback to
 	 * drivers and limits it to one at a time.
 	 */
 	spinlock_t ampdu_lock;
 	/* number of interfaces with corresponding IFF_ flags */
 	atomic_t iff_allmultis, iff_promiscs;
 	struct rate_control_ref *rate_ctrl;
 	struct crypto_blkcipher *wep_tx_tfm;
 	struct crypto_blkcipher *wep_rx_tfm;
 	u32 wep_iv;
 	/* see iface.c */
 	struct list_head interfaces;
 	struct mutex iflist_mtx;
 	/*
 	 * Key lock, protects sdata's key_list and sta_info's
 	 * key pointers (write access, they're RCU.)
 	 */
 	spinlock_t key_lock;
 	/* Scanning and BSS list */
 	struct mutex scan_mtx;
 	unsigned long scanning;
 	struct cfg80211_ssid scan_ssid;
 	struct cfg80211_scan_request *int_scan_req;
 	struct cfg80211_scan_request *scan_req;
 	struct ieee80211_channel *scan_channel;
 	const u8 *orig_ies;
 	int orig_ies_len;
 	int scan_channel_idx;
 	int scan_ies_len;
 	enum mac80211_scan_state next_scan_state;
 	struct delayed_work scan_work;
 	struct ieee80211_sub_if_data *scan_sdata;
 	enum nl80211_channel_type oper_channel_type;
 	struct ieee80211_channel *oper_channel, *csa_channel;
 	/* SNMP counters */
 	/* dot11CountersTable */
 	u32 dot11TransmittedFragmentCount;
 	u32 dot11MulticastTransmittedFrameCount;
 	u32 dot11FailedCount;
 	u32 dot11RetryCount;
 	u32 dot11MultipleRetryCount;
 	u32 dot11FrameDuplicateCount;
 	u32 dot11ReceivedFragmentCount;
 	u32 dot11MulticastReceivedFrameCount;
 	u32 dot11TransmittedFrameCount;
 #ifdef CONFIG_MAC80211_LEDS
 	int tx_led_counter, rx_led_counter;
 	struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
 	char tx_led_name[32], rx_led_name[32],
 	     assoc_led_name[32], radio_led_name[32];
 #endif
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct work_struct sta_debugfs_add;
 #endif
 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 	/* TX/RX handler statistics */
 	unsigned int tx_handlers_drop;
 	unsigned int tx_handlers_queued;
 	unsigned int tx_handlers_drop_unencrypted;
 	unsigned int tx_handlers_drop_fragment;
 	unsigned int tx_handlers_drop_wep;
 	unsigned int tx_handlers_drop_not_assoc;
 	unsigned int tx_handlers_drop_unauth_port;
 	unsigned int rx_handlers_drop;
 	unsigned int rx_handlers_queued;
 	unsigned int rx_handlers_drop_nullfunc;
 	unsigned int rx_handlers_drop_defrag;
 	unsigned int rx_handlers_drop_short;
 	unsigned int rx_handlers_drop_passive_scan;
 	unsigned int tx_expand_skb_head;
 	unsigned int tx_expand_skb_head_cloned;
 	unsigned int rx_expand_skb_head;
 	unsigned int rx_expand_skb_head2;
 	unsigned int rx_handlers_fragments;
 	unsigned int tx_status_drop;
 #define I802_DEBUG_INC(c) (c)++
 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
 #define I802_DEBUG_INC(c) do { } while (0)
 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
 	int total_ps_buffered; /* total number of all buffered unicast and
 				* multicast packets for power saving stations
 				*/
 	int wifi_wme_noack_test;
 	unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 	bool pspolling;
 	/*
 	 * PS can only be enabled when we have exactly one managed
 	 * interface (and monitors) in PS, this then points there.
 	 */
 	struct ieee80211_sub_if_data *ps_sdata;
 	struct work_struct dynamic_ps_enable_work;
 	struct work_struct dynamic_ps_disable_work;
 	struct timer_list dynamic_ps_timer;
 	struct notifier_block network_latency_notifier;
 	int user_power_level; /* in dBm */
 	int power_constr_level; /* in dBm */
 	struct work_struct restart_work;
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct local_debugfsdentries {
 		struct dentry *rcdir;
 		struct dentry *rcname;
 		struct dentry *frequency;
 		struct dentry *total_ps_buffered;
 		struct dentry *wep_iv;
 		struct dentry *tsf;
 		struct dentry *queues;
 		struct dentry *reset;
 		struct dentry *noack;
 		struct dentry *statistics;
 		struct local_debugfsdentries_statsdentries {
 			struct dentry *transmitted_fragment_count;
 			struct dentry *multicast_transmitted_frame_count;
 			struct dentry *failed_count;
 			struct dentry *retry_count;
 			struct dentry *multiple_retry_count;
 			struct dentry *frame_duplicate_count;
 			struct dentry *received_fragment_count;
 			struct dentry *multicast_received_frame_count;
 			struct dentry *transmitted_frame_count;
 			struct dentry *wep_undecryptable_count;
 			struct dentry *num_scans;
 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 			struct dentry *tx_handlers_drop;
 			struct dentry *tx_handlers_queued;
 			struct dentry *tx_handlers_drop_unencrypted;
 			struct dentry *tx_handlers_drop_fragment;
 			struct dentry *tx_handlers_drop_wep;
 			struct dentry *tx_handlers_drop_not_assoc;
 			struct dentry *tx_handlers_drop_unauth_port;
 			struct dentry *rx_handlers_drop;
 			struct dentry *rx_handlers_queued;
 			struct dentry *rx_handlers_drop_nullfunc;
 			struct dentry *rx_handlers_drop_defrag;
 			struct dentry *rx_handlers_drop_short;
 			struct dentry *rx_handlers_drop_passive_scan;
 			struct dentry *tx_expand_skb_head;
 			struct dentry *tx_expand_skb_head_cloned;
 			struct dentry *rx_expand_skb_head;
 			struct dentry *rx_expand_skb_head2;
 			struct dentry *rx_handlers_fragments;
 			struct dentry *tx_status_drop;
 #endif
 			struct dentry *dot11ACKFailureCount;
 			struct dentry *dot11RTSFailureCount;
 			struct dentry *dot11FCSErrorCount;
 			struct dentry *dot11RTSSuccessCount;
 		} stats;
 		struct dentry *stations;
 		struct dentry *keys;
 	} debugfs;
 #endif
 };
 static inline struct ieee80211_sub_if_data *
 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
 {
 	return netdev_priv(dev);
 }
 /* this struct represents 802.11n's RA/TID combination */
 struct ieee80211_ra_tid {
 	u8 ra[ETH_ALEN];
 	u16 tid;
 };
 /* Parsed Information Elements */
 struct ieee802_11_elems {
 	u8 *ie_start;
 	size_t total_len;
 	/* pointers to IEs */
 	u8 *ssid;
 	u8 *supp_rates;
 	u8 *fh_params;
 	u8 *ds_params;
 	u8 *cf_params;
 	struct ieee80211_tim_ie *tim;
 	u8 *ibss_params;
 	u8 *challenge;
 	u8 *wpa;
 	u8 *rsn;
 	u8 *erp_info;
 	u8 *ext_supp_rates;
 	u8 *wmm_info;
 	u8 *wmm_param;
 	struct ieee80211_ht_cap *ht_cap_elem;
 	struct ieee80211_ht_info *ht_info_elem;
 	u8 *mesh_config;
 	u8 *mesh_id;
 	u8 *peer_link;
 	u8 *preq;
 	u8 *prep;
 	u8 *perr;
 	u8 *ch_switch_elem;
 	u8 *country_elem;
 	u8 *pwr_constr_elem;
 	u8 *quiet_elem; 	/* first quite element */
 	u8 *timeout_int;
 	/* 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 mesh_config_len;
 	u8 mesh_id_len;
 	u8 peer_link_len;
 	u8 preq_len;
 	u8 prep_len;
 	u8 perr_len;
 	u8 ch_switch_elem_len;
 	u8 country_elem_len;
 	u8 pwr_constr_elem_len;
 	u8 quiet_elem_len;
 	u8 num_of_quiet_elem;	/* can be more the one */
 	u8 timeout_int_len;
 };
 static inline struct ieee80211_local *hw_to_local(
 	struct ieee80211_hw *hw)
 {
 	return container_of(hw, struct ieee80211_local, hw);
 }
 static inline struct ieee80211_hw *local_to_hw(
 	struct ieee80211_local *local)
 {
 	return &local->hw;
 }
 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 {
 	return compare_ether_addr(raddr, addr) == 0 ||
 	       is_broadcast_ether_addr(raddr);
 }
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed);
 void ieee80211_configure_filter(struct ieee80211_local *local);
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
 /* STA code */
 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 		       struct cfg80211_auth_request *req);
 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 			struct cfg80211_assoc_request *req);
 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 			 struct cfg80211_deauth_request *req,
 			 void *cookie);
 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
 			   struct cfg80211_disassoc_request *req,
 			   void *cookie);
 ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
 					  struct sk_buff *skb);
 void ieee80211_send_pspoll(struct ieee80211_local *local,
 			   struct ieee80211_sub_if_data *sdata);
 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
 int ieee80211_max_network_latency(struct notifier_block *nb,
 				  unsigned long data, void *dummy);
 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 				      struct ieee80211_channel_sw_ie *sw_elem,
 				      struct ieee80211_bss *bss);
 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
 /* IBSS code */
 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
 ieee80211_rx_result
 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 					u8 *bssid, u8 *addr, u32 supp_rates);
 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 			struct cfg80211_ibss_params *params);
 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
 /* scan/BSS handling */
 void ieee80211_scan_work(struct work_struct *work);
 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
 				    const u8 *ssid, u8 ssid_len);
 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 			   struct cfg80211_scan_request *req);
 void ieee80211_scan_cancel(struct ieee80211_local *local);
 ieee80211_rx_result
 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
 struct ieee80211_bss *
 ieee80211_bss_info_update(struct ieee80211_local *local,
 			  struct ieee80211_rx_status *rx_status,
 			  struct ieee80211_mgmt *mgmt,
 			  size_t len,
 			  struct ieee802_11_elems *elems,
 			  struct ieee80211_channel *channel,
 			  bool beacon);
 struct ieee80211_bss *
 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
 		     u8 *ssid, u8 ssid_len);
 void ieee80211_rx_bss_put(struct ieee80211_local *local,
 			  struct ieee80211_bss *bss);
 /* interface handling */
 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 		     struct net_device **new_dev, enum nl80211_iftype type,
 		     struct vif_params *params);
 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 			     enum nl80211_iftype type);
 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
 void ieee80211_remove_interfaces(struct ieee80211_local *local);
 u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
 void ieee80211_recalc_idle(struct ieee80211_local *local);
 /* tx handling */
 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
 void ieee80211_tx_pending(unsigned long data);
 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
 /* HT */
 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
 				       struct ieee80211_ht_cap *ht_cap_ie,
 				       struct ieee80211_sta_ht_cap *ht_cap);
 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 			  const u8 *da, u16 tid,
 			  u16 initiator, u16 reason_code);
 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
 				u16 tid, u16 initiator, u16 reason);
 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 				    u16 initiator, u16 reason);
 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
 			     struct sta_info *sta,
 			     struct ieee80211_mgmt *mgmt, size_t len);
 void ieee80211_process_addba_resp(struct ieee80211_local *local,
 				  struct sta_info *sta,
 				  struct ieee80211_mgmt *mgmt,
 				  size_t len);
 void ieee80211_process_addba_request(struct ieee80211_local *local,
 				     struct sta_info *sta,
 				     struct ieee80211_mgmt *mgmt,
 				     size_t len);
 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 				   enum ieee80211_back_parties initiator);
 /* Spectrum management */
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
 				       struct ieee80211_mgmt *mgmt,
 				       size_t len);
 /* Suspend/resume and hw reconfiguration */
 int ieee80211_reconfig(struct ieee80211_local *local);
 #ifdef CONFIG_PM
 int __ieee80211_suspend(struct ieee80211_hw *hw);
 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
 {
 	return ieee80211_reconfig(hw_to_local(hw));
 }
 #else
 static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
 {
 	return 0;
 }
 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
 {
 	return 0;
 }
 #endif
 /* utility functions/constants */
 extern void *mac80211_wiphy_privid; /* for wiphy privid */
 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
 			enum nl80211_iftype type);
 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
 			     int rate, int erp, int short_preamble);
 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
 				     struct ieee80211_hdr *hdr, const u8 *tsc,
 				     gfp_t gfp);
 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 		      int encrypt);
 void ieee802_11_parse_elems(u8 *start, size_t len,
 			    struct ieee802_11_elems *elems);
 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
 			       struct ieee802_11_elems *elems,
 			       u64 filter, u32 crc);
 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
 			      enum ieee80211_band band);
 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
 void ieee80211_dynamic_ps_timer(unsigned long data);
 void ieee80211_send_nullfunc(struct ieee80211_local *local,
 			     struct ieee80211_sub_if_data *sdata,
 			     int powersave);
 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
 			     struct ieee80211_hdr *hdr);
 void ieee80211_beacon_loss_work(struct work_struct *work);
 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
 				     enum queue_stop_reason reason);
 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
 				     enum queue_stop_reason reason);
 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
 				    enum queue_stop_reason reason);
 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
 				    enum queue_stop_reason reason);
 void ieee80211_add_pending_skb(struct ieee80211_local *local,
 			       struct sk_buff *skb);
 int ieee80211_add_pending_skbs(struct ieee80211_local *local,
 			       struct sk_buff_head *skbs);
 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 			 u16 transaction, u16 auth_alg,
 			 u8 *extra, size_t extra_len, const u8 *bssid,
 			 const u8 *key, u8 key_len, u8 key_idx);
 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 			     const u8 *ie, size_t ie_len);
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 			      const u8 *ssid, size_t ssid_len,
 			      const u8 *ie, size_t ie_len);
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 				  const size_t supp_rates_len,
 				  const u8 *supp_rates);
 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
 			    struct ieee802_11_elems *elems,
 			    enum ieee80211_band band);
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline
 #else
 #define debug_noinline
 #endif
 #endif /* IEEE80211_I_H */

net/mac80211/mesh.c

Diff comments View file @ 9e03fdf

 /*
  * Copyright (c) 2008 open80211s Ltd.
  * Authors:    Luis Carlos Cobo <luisca@cozybit.com>
  * 	       Javier Cardona <javier@cozybit.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
 #include <asm/unaligned.h>
 #include "ieee80211_i.h"
 #include "mesh.h"
 #define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
 #define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
 #define PP_OFFSET 	1		/* Path Selection Protocol */
 #define PM_OFFSET	5		/* Path Selection Metric   */
 #define CC_OFFSET	9		/* Congestion Control Mode */
-#define CAPAB_OFFSET 17
+#define SP_OFFSET	13		/* Synchronization Protocol */
-#define ACCEPT_PLINKS 0x80
+#define AUTH_OFFSET	17		/* Authentication Protocol */
+#define CAPAB_OFFSET 	22
+#define CAPAB_ACCEPT_PLINKS 0x80
+#define CAPAB_FORWARDING    0x10
 #define TMR_RUNNING_HK	0
 #define TMR_RUNNING_MP	1
 int mesh_allocated;
 static struct kmem_cache *rm_cache;
 void ieee80211s_init(void)
 {
 	mesh_pathtbl_init();
 	mesh_allocated = 1;
 	rm_cache = kmem_cache_create("mesh_rmc", sizeof(struct rmc_entry),
 				     0, 0, NULL);
 }
 void ieee80211s_stop(void)
 {
 	mesh_pathtbl_unregister();
 	kmem_cache_destroy(rm_cache);
 }
 static void ieee80211_mesh_housekeeping_timer(unsigned long data)
 {
 	struct ieee80211_sub_if_data *sdata = (void *) data;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	ifmsh->wrkq_flags |= MESH_WORK_HOUSEKEEPING;
 	if (local->quiescing) {
 		set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
 		return;
 	}
 	ieee80211_queue_work(&local->hw, &ifmsh->work);
 }
 /**
  * mesh_matches_local - check if the config of a mesh point matches ours
  *
  * @ie: information elements of a management frame from the mesh peer
  * @sdata: local mesh subif
  *
  * This function checks if the mesh configuration of a mesh point matches the
  * local mesh configuration, i.e. if both nodes belong to the same mesh network.
  */
 bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	/*
 	 * As support for each feature is added, check for matching
 	 * - On mesh config capabilities
 	 *   - Power Save Support En
 	 *   - Sync support enabled
 	 *   - Sync support active
 	 *   - Sync support required from peer
 	 *   - MDA enabled
 	 * - Power management control on fc
 	 */
 	if (ifmsh->mesh_id_len == ie->mesh_id_len &&
 		memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 &&
 		memcmp(ifmsh->mesh_pp_id, ie->mesh_config + PP_OFFSET, 4) == 0 &&
 		memcmp(ifmsh->mesh_pm_id, ie->mesh_config + PM_OFFSET, 4) == 0 &&
-		memcmp(ifmsh->mesh_cc_id, ie->mesh_config + CC_OFFSET, 4) == 0)
+		memcmp(ifmsh->mesh_cc_id, ie->mesh_config + CC_OFFSET, 4) == 0 &&
+		memcmp(ifmsh->mesh_sp_id, ie->mesh_config + SP_OFFSET, 4) == 0 &&
+		memcmp(ifmsh->mesh_auth_id, ie->mesh_config + AUTH_OFFSET, 4) == 0)
 		return true;
 	return false;
 }
 /**
  * mesh_peer_accepts_plinks - check if an mp is willing to establish peer links
  *
  * @ie: information elements of a management frame from the mesh peer
  */
 bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie)
 {
-	return (*(ie->mesh_config + CAPAB_OFFSET) & ACCEPT_PLINKS) != 0;
+	return (*(ie->mesh_config + CAPAB_OFFSET) & CAPAB_ACCEPT_PLINKS) != 0;
 }
 /**
  * mesh_accept_plinks_update: update accepting_plink in local mesh beacons
  *
  * @sdata: mesh interface in which mesh beacons are going to be updated
  */
 void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
 {
 	bool free_plinks;
 	/* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0,
 	 * the mesh interface might be able to establish plinks with peers that
 	 * are already on the table but are not on PLINK_ESTAB state. However,
 	 * in general the mesh interface is not accepting peer link requests
 	 * from new peers, and that must be reflected in the beacon
 	 */
 	free_plinks = mesh_plink_availables(sdata);
 	if (free_plinks != sdata->u.mesh.accepting_plinks)
 		ieee80211_mesh_housekeeping_timer((unsigned long) sdata);
 }
 void mesh_ids_set_default(struct ieee80211_if_mesh *sta)
 {
-	u8 def_id[4] = {0x00, 0x0F, 0xAC, 0xff};
+	u8 oui[3] = {0x00, 0x0F, 0xAC};
-	memcpy(sta->mesh_pp_id, def_id, 4);
+	memcpy(sta->mesh_pp_id, oui, sizeof(oui));
-	memcpy(sta->mesh_pm_id, def_id, 4);
+	memcpy(sta->mesh_pm_id, oui, sizeof(oui));
-	memcpy(sta->mesh_cc_id, def_id, 4);
+	memcpy(sta->mesh_cc_id, oui, sizeof(oui));
+	memcpy(sta->mesh_sp_id, oui, sizeof(oui));
+	memcpy(sta->mesh_auth_id, oui, sizeof(oui));
+	sta->mesh_pp_id[sizeof(oui)] = 0;
+	sta->mesh_pm_id[sizeof(oui)] = 0;
+	sta->mesh_cc_id[sizeof(oui)] = 0xff;
+	sta->mesh_sp_id[sizeof(oui)] = 0xff;
+	sta->mesh_auth_id[sizeof(oui)] = 0x0;
 }
 int mesh_rmc_init(struct ieee80211_sub_if_data *sdata)
 {
 	int i;
 	sdata->u.mesh.rmc = kmalloc(sizeof(struct mesh_rmc), GFP_KERNEL);
 	if (!sdata->u.mesh.rmc)
 		return -ENOMEM;
 	sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1;
 	for (i = 0; i < RMC_BUCKETS; i++)
 		INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i].list);
 	return 0;
 }
 void mesh_rmc_free(struct ieee80211_sub_if_data *sdata)
 {
 	struct mesh_rmc *rmc = sdata->u.mesh.rmc;
 	struct rmc_entry *p, *n;
 	int i;
 	if (!sdata->u.mesh.rmc)
 		return;
 	for (i = 0; i < RMC_BUCKETS; i++)
 		list_for_each_entry_safe(p, n, &rmc->bucket[i].list, list) {
 			list_del(&p->list);
 			kmem_cache_free(rm_cache, p);
 		}
 	kfree(rmc);
 	sdata->u.mesh.rmc = NULL;
 }
 /**
  * mesh_rmc_check - Check frame in recent multicast cache and add if absent.
  *
  * @sa:		source address
  * @mesh_hdr:	mesh_header
  *
  * Returns: 0 if the frame is not in the cache, nonzero otherwise.
  *
  * Checks using the source address and the mesh sequence number if we have
  * received this frame lately. If the frame is not in the cache, it is added to
  * it.
  */
 int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
 		   struct ieee80211_sub_if_data *sdata)
 {
 	struct mesh_rmc *rmc = sdata->u.mesh.rmc;
 	u32 seqnum = 0;
 	int entries = 0;
 	u8 idx;
 	struct rmc_entry *p, *n;
 	/* Don't care about endianness since only match matters */
 	memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum));
 	idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask;
 	list_for_each_entry_safe(p, n, &rmc->bucket[idx].list, list) {
 		++entries;
 		if (time_after(jiffies, p->exp_time) ||
 				(entries == RMC_QUEUE_MAX_LEN)) {
 			list_del(&p->list);
 			kmem_cache_free(rm_cache, p);
 			--entries;
 		} else if ((seqnum == p->seqnum)
 				&& (memcmp(sa, p->sa, ETH_ALEN) == 0))
 			return -1;
 	}
 	p = kmem_cache_alloc(rm_cache, GFP_ATOMIC);
 	if (!p) {
 		printk(KERN_DEBUG "o11s: could not allocate RMC entry\n");
 		return 0;
 	}
 	p->seqnum = seqnum;
 	p->exp_time = jiffies + RMC_TIMEOUT;
 	memcpy(p->sa, sa, ETH_ALEN);
 	list_add(&p->list, &rmc->bucket[idx].list);
 	return 0;
 }
 void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
 	u8 *pos;
 	int len, i, rate;
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 	len = sband->n_bitrates;
 	if (len > 8)
 		len = 8;
 	pos = skb_put(skb, len + 2);
 	*pos++ = WLAN_EID_SUPP_RATES;
 	*pos++ = len;
 	for (i = 0; i < len; i++) {
 		rate = sband->bitrates[i].bitrate;
 		*pos++ = (u8) (rate / 5);
 	}
 	if (sband->n_bitrates > len) {
 		pos = skb_put(skb, sband->n_bitrates - len + 2);
 		*pos++ = WLAN_EID_EXT_SUPP_RATES;
 		*pos++ = sband->n_bitrates - len;
 		for (i = len; i < sband->n_bitrates; i++) {
 			rate = sband->bitrates[i].bitrate;
 			*pos++ = (u8) (rate / 5);
 		}
 	}
 	pos = skb_put(skb, 2 + sdata->u.mesh.mesh_id_len);
 	*pos++ = WLAN_EID_MESH_ID;
 	*pos++ = sdata->u.mesh.mesh_id_len;
 	if (sdata->u.mesh.mesh_id_len)
 		memcpy(pos, sdata->u.mesh.mesh_id, sdata->u.mesh.mesh_id_len);
-	pos = skb_put(skb, 21);
+	pos = skb_put(skb, 2 + IEEE80211_MESH_CONFIG_LEN);
 	*pos++ = WLAN_EID_MESH_CONFIG;
 	*pos++ = IEEE80211_MESH_CONFIG_LEN;
 	/* Version */
 	*pos++ = 1;
 	/* Active path selection protocol ID */
 	memcpy(pos, sdata->u.mesh.mesh_pp_id, 4);
 	pos += 4;
 	/* Active path selection metric ID   */
 	memcpy(pos, sdata->u.mesh.mesh_pm_id, 4);
 	pos += 4;
 	/* Congestion control mode identifier */
 	memcpy(pos, sdata->u.mesh.mesh_cc_id, 4);
 	pos += 4;
-	/* Channel precedence:
+	/* Synchronization protocol identifier */
-	 * Not running simple channel unification protocol
+	memcpy(pos, sdata->u.mesh.mesh_sp_id, 4);
-	 */
-	memset(pos, 0x00, 4);
 	pos += 4;
+	/* Authentication Protocol identifier */
+	memcpy(pos, sdata->u.mesh.mesh_auth_id, 4);
+	pos += 4;
+	/* Mesh Formation Info */
+	memset(pos, 0x00, 1);
+	pos += 1;
 	/* Mesh capability */
 	sdata->u.mesh.accepting_plinks = mesh_plink_availables(sdata);
-	*pos++ = sdata->u.mesh.accepting_plinks ? ACCEPT_PLINKS : 0x00;
+	*pos = CAPAB_FORWARDING;
+	*pos++ |= sdata->u.mesh.accepting_plinks ? CAPAB_ACCEPT_PLINKS : 0x00;
 	*pos++ = 0x00;
 	return;
 }
 u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata, struct mesh_table *tbl)
 {
 	/* Use last four bytes of hw addr and interface index as hash index */
 	return jhash_2words(*(u32 *)(addr+2), sdata->dev->ifindex, tbl->hash_rnd)
 		& tbl->hash_mask;
 }
 struct mesh_table *mesh_table_alloc(int size_order)
 {
 	int i;
 	struct mesh_table *newtbl;
 	newtbl = kmalloc(sizeof(struct mesh_table), GFP_KERNEL);
 	if (!newtbl)
 		return NULL;
 	newtbl->hash_buckets = kzalloc(sizeof(struct hlist_head) *
 			(1 << size_order), GFP_KERNEL);
 	if (!newtbl->hash_buckets) {
 		kfree(newtbl);
 		return NULL;
 	}
 	newtbl->hashwlock = kmalloc(sizeof(spinlock_t) *
 			(1 << size_order), GFP_KERNEL);
 	if (!newtbl->hashwlock) {
 		kfree(newtbl->hash_buckets);
 		kfree(newtbl);
 		return NULL;
 	}
 	newtbl->size_order = size_order;
 	newtbl->hash_mask = (1 << size_order) - 1;
 	atomic_set(&newtbl->entries,  0);
 	get_random_bytes(&newtbl->hash_rnd,
 			sizeof(newtbl->hash_rnd));
 	for (i = 0; i <= newtbl->hash_mask; i++)
 		spin_lock_init(&newtbl->hashwlock[i]);
 	return newtbl;
 }
 static void ieee80211_mesh_path_timer(unsigned long data)
 {
 	struct ieee80211_sub_if_data *sdata =
 		(struct ieee80211_sub_if_data *) data;
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct ieee80211_local *local = sdata->local;
 	if (local->quiescing) {
 		set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
 		return;
 	}
 	ieee80211_queue_work(&local->hw, &ifmsh->work);
 }
 /**
  * ieee80211_fill_mesh_addresses - fill addresses of a locally originated mesh frame
  * @hdr:    	802.11 frame header
  * @fc:		frame control field
  * @meshda:	destination address in the mesh
  * @meshsa:	source address address in the mesh.  Same as TA, as frame is
  *              locally originated.
  *
  * Return the length of the 802.11 (does not include a mesh control header)
  */
 int ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc, char
 		*meshda, char *meshsa) {
 	if (is_multicast_ether_addr(meshda)) {
 		*fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
 		/* DA TA SA */
 		memcpy(hdr->addr1, meshda, ETH_ALEN);
 		memcpy(hdr->addr2, meshsa, ETH_ALEN);
 		memcpy(hdr->addr3, meshsa, ETH_ALEN);
 		return 24;
 	} else {
 		*fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS |
 				IEEE80211_FCTL_TODS);
 		/* RA TA DA SA */
 		memset(hdr->addr1, 0, ETH_ALEN);   /* RA is resolved later */
 		memcpy(hdr->addr2, meshsa, ETH_ALEN);
 		memcpy(hdr->addr3, meshda, ETH_ALEN);
 		memcpy(hdr->addr4, meshsa, ETH_ALEN);
 		return 30;
 	}
 }
 /**
  * ieee80211_new_mesh_header - create a new mesh header
  * @meshhdr:    uninitialized mesh header
  * @sdata:	mesh interface to be used
  * @addr4:	addr4 of the mesh frame (1st in ae header)
  *              may be NULL
  * @addr5:	addr5 of the mesh frame (1st or 2nd in ae header)
  *              may be NULL unless addr6 is present
  * @addr6:	addr6 of the mesh frame (2nd or 3rd in ae header)
  * 		may be NULL unless addr5 is present
  *
  * Return the header length.
  */
 int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
 		struct ieee80211_sub_if_data *sdata, char *addr4,
 		char *addr5, char *addr6)
 {
 	int aelen = 0;
 	memset(meshhdr, 0, sizeof(meshhdr));
 	meshhdr->ttl = sdata->u.mesh.mshcfg.dot11MeshTTL;
 	put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &meshhdr->seqnum);
 	sdata->u.mesh.mesh_seqnum++;
 	if (addr4) {
 		meshhdr->flags |= MESH_FLAGS_AE_A4;
 		aelen += ETH_ALEN;
 		memcpy(meshhdr->eaddr1, addr4, ETH_ALEN);
 	}
 	if (addr5 && addr6) {
 		meshhdr->flags |= MESH_FLAGS_AE_A5_A6;
 		aelen += 2 * ETH_ALEN;
 		if (!addr4) {
 			memcpy(meshhdr->eaddr1, addr5, ETH_ALEN);
 			memcpy(meshhdr->eaddr2, addr6, ETH_ALEN);
 		} else {
 			memcpy(meshhdr->eaddr2, addr5, ETH_ALEN);
 			memcpy(meshhdr->eaddr3, addr6, ETH_ALEN);
 		}
 	}
 	return 6 + aelen;
 }
 static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
 			   struct ieee80211_if_mesh *ifmsh)
 {
 	bool free_plinks;
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	printk(KERN_DEBUG "%s: running mesh housekeeping\n",
 	       sdata->dev->name);
 #endif
 	ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
 	mesh_path_expire(sdata);
 	free_plinks = mesh_plink_availables(sdata);
 	if (free_plinks != sdata->u.mesh.accepting_plinks)
 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
 	mod_timer(&ifmsh->housekeeping_timer,
 		  round_jiffies(jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL));
 }
 #ifdef CONFIG_PM
 void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	/* might restart the timer but that doesn't matter */
 	cancel_work_sync(&ifmsh->work);
 	/* use atomic bitops in case both timers fire at the same time */
 	if (del_timer_sync(&ifmsh->housekeeping_timer))
 		set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
 	if (del_timer_sync(&ifmsh->mesh_path_timer))
 		set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
 }
 void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	if (test_and_clear_bit(TMR_RUNNING_HK, &ifmsh->timers_running))
 		add_timer(&ifmsh->housekeeping_timer);
 	if (test_and_clear_bit(TMR_RUNNING_MP, &ifmsh->timers_running))
 		add_timer(&ifmsh->mesh_path_timer);
 }
 #endif
 void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct ieee80211_local *local = sdata->local;
 	ifmsh->wrkq_flags |= MESH_WORK_HOUSEKEEPING;
 	ieee80211_queue_work(&local->hw, &ifmsh->work);
 	sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL;
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON |
 						BSS_CHANGED_BEACON_ENABLED |
 						BSS_CHANGED_BEACON_INT);
 }
 void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 {
 	del_timer_sync(&sdata->u.mesh.housekeeping_timer);
 	/*
 	 * If the timer fired while we waited for it, it will have
 	 * requeued the work. Now the work will be running again
 	 * but will not rearm the timer again because it checks
 	 * whether the interface is running, which, at this point,
 	 * it no longer is.
 	 */
 	cancel_work_sync(&sdata->u.mesh.work);
 	/*
 	 * When we get here, the interface is marked down.
 	 * Call synchronize_rcu() to wait for the RX path
 	 * should it be using the interface and enqueuing
 	 * frames at this very time on another CPU.
 	 */
 	rcu_barrier(); /* Wait for RX path and call_rcu()'s */
 	skb_queue_purge(&sdata->u.mesh.skb_queue);
 }
 static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 					u16 stype,
 					struct ieee80211_mgmt *mgmt,
 					size_t len,
 					struct ieee80211_rx_status *rx_status)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee802_11_elems elems;
 	struct ieee80211_channel *channel;
 	u32 supp_rates = 0;
 	size_t baselen;
 	int freq;
 	enum ieee80211_band band = rx_status->band;
 	/* ignore ProbeResp to foreign address */
 	if (stype == IEEE80211_STYPE_PROBE_RESP &&
 	    compare_ether_addr(mgmt->da, sdata->dev->dev_addr))
 		return;
 	baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
 	if (baselen > len)
 		return;
 	ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
 			       &elems);
 	if (elems.ds_params && elems.ds_params_len == 1)
 		freq = ieee80211_channel_to_frequency(elems.ds_params[0]);
 	else
 		freq = rx_status->freq;
 	channel = ieee80211_get_channel(local->hw.wiphy, freq);
 	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
 		return;
 	if (elems.mesh_id && elems.mesh_config &&
 	    mesh_matches_local(&elems, sdata)) {
 		supp_rates = ieee80211_sta_get_rates(local, &elems, band);
 		mesh_neighbour_update(mgmt->sa, supp_rates, sdata,
 				      mesh_peer_accepts_plinks(&elems));
 	}
 }
 static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
 					  struct ieee80211_mgmt *mgmt,
 					  size_t len,
 					  struct ieee80211_rx_status *rx_status)
 {
 	switch (mgmt->u.action.category) {
 	case PLINK_CATEGORY:
 		mesh_rx_plink_frame(sdata, mgmt, len, rx_status);
 		break;
 	case MESH_PATH_SEL_CATEGORY:
 		mesh_rx_path_sel_frame(sdata, mgmt, len);
 		break;
 	}
 }
 static void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 					  struct sk_buff *skb)
 {
 	struct ieee80211_rx_status *rx_status;
 	struct ieee80211_if_mesh *ifmsh;
 	struct ieee80211_mgmt *mgmt;
 	u16 stype;
 	ifmsh = &sdata->u.mesh;
 	rx_status = IEEE80211_SKB_RXCB(skb);
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
 	switch (stype) {
 	case IEEE80211_STYPE_PROBE_RESP:
 	case IEEE80211_STYPE_BEACON:
 		ieee80211_mesh_rx_bcn_presp(sdata, stype, mgmt, skb->len,
 					    rx_status);
 		break;
 	case IEEE80211_STYPE_ACTION:
 		ieee80211_mesh_rx_mgmt_action(sdata, mgmt, skb->len, rx_status);
 		break;
 	}
 	kfree_skb(skb);
 }
 static void ieee80211_mesh_work(struct work_struct *work)
 {
 	struct ieee80211_sub_if_data *sdata =
 		container_of(work, struct ieee80211_sub_if_data, u.mesh.work);
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct sk_buff *skb;
 	if (!netif_running(sdata->dev))
 		return;
 	if (local->scanning)
 		return;
 	while ((skb = skb_dequeue(&ifmsh->skb_queue)))
 		ieee80211_mesh_rx_queued_mgmt(sdata, skb);
 	if (ifmsh->preq_queue_len &&
 	    time_after(jiffies,
 		       ifmsh->last_preq + msecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval)))
 		mesh_path_start_discovery(sdata);
 	if (test_and_clear_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags))
 		mesh_mpath_table_grow();
 	if (test_and_clear_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags))
 		mesh_mpp_table_grow();
 	if (test_and_clear_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags))
 		ieee80211_mesh_housekeeping(sdata, ifmsh);
 }
 void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local)
 {
 	struct ieee80211_sub_if_data *sdata;
 	rcu_read_lock();
 	list_for_each_entry_rcu(sdata, &local->interfaces, list)
 		if (ieee80211_vif_is_mesh(&sdata->vif))
 			ieee80211_queue_work(&local->hw, &sdata->u.mesh.work);
 	rcu_read_unlock();
 }
 void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	INIT_WORK(&ifmsh->work, ieee80211_mesh_work);
 	setup_timer(&ifmsh->housekeeping_timer,
 		    ieee80211_mesh_housekeeping_timer,
 		    (unsigned long) sdata);
 	skb_queue_head_init(&sdata->u.mesh.skb_queue);
 	ifmsh->mshcfg.dot11MeshRetryTimeout = MESH_RET_T;
 	ifmsh->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T;
 	ifmsh->mshcfg.dot11MeshHoldingTimeout = MESH_HOLD_T;
 	ifmsh->mshcfg.dot11MeshMaxRetries = MESH_MAX_RETR;
 	ifmsh->mshcfg.dot11MeshTTL = MESH_TTL;
 	ifmsh->mshcfg.auto_open_plinks = true;
 	ifmsh->mshcfg.dot11MeshMaxPeerLinks =
 		MESH_MAX_ESTAB_PLINKS;
 	ifmsh->mshcfg.dot11MeshHWMPactivePathTimeout =
 		MESH_PATH_TIMEOUT;
 	ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval =
 		MESH_PREQ_MIN_INT;
 	ifmsh->mshcfg.dot11MeshHWMPnetDiameterTraversalTime =
 		MESH_DIAM_TRAVERSAL_TIME;
 	ifmsh->mshcfg.dot11MeshHWMPmaxPREQretries =
 		MESH_MAX_PREQ_RETRIES;
 	ifmsh->mshcfg.path_refresh_time =
 		MESH_PATH_REFRESH_TIME;
 	ifmsh->mshcfg.min_discovery_timeout =
 		MESH_MIN_DISCOVERY_TIMEOUT;
 	ifmsh->accepting_plinks = true;
 	ifmsh->preq_id = 0;
 	ifmsh->dsn = 0;
 	atomic_set(&ifmsh->mpaths, 0);
 	mesh_rmc_init(sdata);
 	ifmsh->last_preq = jiffies;
 	/* Allocate all mesh structures when creating the first mesh interface. */
 	if (!mesh_allocated)
 		ieee80211s_init();
 	mesh_ids_set_default(ifmsh);
 	setup_timer(&ifmsh->mesh_path_timer,
 		    ieee80211_mesh_path_timer,
 		    (unsigned long) sdata);
 	INIT_LIST_HEAD(&ifmsh->preq_queue.list);
 	spin_lock_init(&ifmsh->mesh_preq_queue_lock);
 }
 ieee80211_rx_result
 ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct ieee80211_mgmt *mgmt;
 	u16 fc;
 	if (skb->len < 24)
 		return RX_DROP_MONITOR;
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	fc = le16_to_cpu(mgmt->frame_control);
 	switch (fc & IEEE80211_FCTL_STYPE) {
 	case IEEE80211_STYPE_ACTION:
 		if (skb->len < IEEE80211_MIN_ACTION_SIZE)
 			return RX_DROP_MONITOR;
 		/* fall through */
 	case IEEE80211_STYPE_PROBE_RESP:
 	case IEEE80211_STYPE_BEACON:
 		skb_queue_tail(&ifmsh->skb_queue, skb);
 		ieee80211_queue_work(&local->hw, &ifmsh->work);
 		return RX_QUEUED;
 	}
 	return RX_CONTINUE;

1	/*	1	/*
2	* IEEE 802.11 defines	2	* IEEE 802.11 defines
3	*	3	*
4	* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen	4	* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
5	* <jkmaline@cc.hut.fi>	5	* <jkmaline@cc.hut.fi>
6	* Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>	6	* Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
7	* Copyright (c) 2005, Devicescape Software, Inc.	7	* Copyright (c) 2005, Devicescape Software, Inc.
8	* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>	8	* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License version 2 as	11	* it under the terms of the GNU General Public License version 2 as
12	* published by the Free Software Foundation.	12	* published by the Free Software Foundation.
13	*/	13	*/
14		14
15	#ifndef LINUX_IEEE80211_H	15	#ifndef LINUX_IEEE80211_H
16	#define LINUX_IEEE80211_H	16	#define LINUX_IEEE80211_H
17		17
18	#include <linux/types.h>	18	#include <linux/types.h>
19	#include <asm/byteorder.h>	19	#include <asm/byteorder.h>
20		20
21	/*	21	/*
22	* DS bit usage	22	* DS bit usage
23	*	23	*
24	* TA = transmitter address	24	* TA = transmitter address
25	* RA = receiver address	25	* RA = receiver address
26	* DA = destination address	26	* DA = destination address
27	* SA = source address	27	* SA = source address
28	*	28	*
29	* ToDS FromDS A1(RA) A2(TA) A3 A4 Use	29	* ToDS FromDS A1(RA) A2(TA) A3 A4 Use
30	* -----------------------------------------------------------------	30	* -----------------------------------------------------------------
31	* 0 0 DA SA BSSID - IBSS/DLS	31	* 0 0 DA SA BSSID - IBSS/DLS
32	* 0 1 DA BSSID SA - AP -> STA	32	* 0 1 DA BSSID SA - AP -> STA
33	* 1 0 BSSID SA DA - AP <- STA	33	* 1 0 BSSID SA DA - AP <- STA
34	* 1 1 RA TA DA SA unspecified (WDS)	34	* 1 1 RA TA DA SA unspecified (WDS)
35	*/	35	*/
36		36
37	#define FCS_LEN 4	37	#define FCS_LEN 4
38		38
39	#define IEEE80211_FCTL_VERS 0x0003	39	#define IEEE80211_FCTL_VERS 0x0003
40	#define IEEE80211_FCTL_FTYPE 0x000c	40	#define IEEE80211_FCTL_FTYPE 0x000c