2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/device.h>
17 #include <linux/if_ether.h>
18 #include <linux/interrupt.h>
19 #include <linux/list.h>
20 #include <linux/netdevice.h>
21 #include <linux/skbuff.h>
22 #include <linux/workqueue.h>
23 #include <linux/types.h>
24 #include <linux/spinlock.h>
25 #include <linux/etherdevice.h>
26 #include <net/cfg80211.h>
27 #include <net/iw_handler.h>
28 #include <net/mac80211.h>
32 struct ieee80211_local;
34 /* Maximum number of broadcast/multicast frames to buffer when some of the
35 * associated stations are using power saving. */
36 #define AP_MAX_BC_BUFFER 128
38 /* Maximum number of frames buffered to all STAs, including multicast frames.
39 * Note: increasing this limit increases the potential memory requirement. Each
40 * frame can be up to about 2 kB long. */
41 #define TOTAL_MAX_TX_BUFFER 512
43 /* Required encryption head and tailroom */
44 #define IEEE80211_ENCRYPT_HEADROOM 8
45 #define IEEE80211_ENCRYPT_TAILROOM 18
47 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
48 * reception of at least three fragmented frames. This limit can be increased
49 * by changing this define, at the cost of slower frame reassembly and
50 * increased memory use (about 2 kB of RAM per entry). */
51 #define IEEE80211_FRAGMENT_MAX 4
54 * Time after which we ignore scan results and no longer report/use
57 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
59 #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
61 struct ieee80211_fragment_entry {
62 unsigned long first_frag_time;
64 unsigned int rx_queue;
65 unsigned int last_frag;
66 unsigned int extra_len;
67 struct sk_buff_head skb_list;
68 int ccmp; /* Whether fragments were encrypted with CCMP */
69 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
73 struct ieee80211_bss {
74 /* Yes, this is a hack */
75 struct cfg80211_bss cbss;
77 /* don't want to look up all the time */
79 u8 ssid[IEEE80211_MAX_SSID_LEN];
85 unsigned long last_probe_resp;
87 #ifdef CONFIG_MAC80211_MESH
93 #define IEEE80211_MAX_SUPP_RATES 32
94 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
95 size_t supp_rates_len;
98 * During assocation, we save an ERP value from a probe response so
99 * that we can feed ERP info to the driver when handling the
100 * association completes. these fields probably won't be up-to-date
101 * otherwise, you probably don't want to use them.
107 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
109 #ifdef CONFIG_MAC80211_MESH
110 return bss->mesh_cfg;
115 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
117 #ifdef CONFIG_MAC80211_MESH
123 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
125 #ifdef CONFIG_MAC80211_MESH
126 return bss->mesh_id_len;
132 typedef unsigned __bitwise__ ieee80211_tx_result;
133 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
134 #define TX_DROP ((__force ieee80211_tx_result) 1u)
135 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
137 #define IEEE80211_TX_FRAGMENTED BIT(0)
138 #define IEEE80211_TX_UNICAST BIT(1)
139 #define IEEE80211_TX_PS_BUFFERED BIT(2)
141 struct ieee80211_tx_data {
143 struct net_device *dev;
144 struct ieee80211_local *local;
145 struct ieee80211_sub_if_data *sdata;
146 struct sta_info *sta;
147 struct ieee80211_key *key;
149 struct ieee80211_channel *channel;
156 typedef unsigned __bitwise__ ieee80211_rx_result;
157 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
158 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
159 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
160 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
162 #define IEEE80211_RX_IN_SCAN BIT(0)
163 /* frame is destined to interface currently processed (incl. multicast frames) */
164 #define IEEE80211_RX_RA_MATCH BIT(1)
165 #define IEEE80211_RX_AMSDU BIT(2)
166 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
167 #define IEEE80211_RX_FRAGMENTED BIT(4)
169 struct ieee80211_rx_data {
171 struct net_device *dev;
172 struct ieee80211_local *local;
173 struct ieee80211_sub_if_data *sdata;
174 struct sta_info *sta;
175 struct ieee80211_key *key;
176 struct ieee80211_rx_status *status;
177 struct ieee80211_rate *rate;
180 int sent_ps_buffered;
188 int head_len, tail_len;
192 struct ieee80211_if_ap {
193 struct beacon_data *beacon;
195 struct list_head vlans;
197 /* yes, this looks ugly, but guarantees that we can later use
199 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
200 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
201 struct sk_buff_head ps_bc_buf;
202 atomic_t num_sta_ps; /* number of stations in PS mode */
206 struct ieee80211_if_wds {
207 struct sta_info *sta;
208 u8 remote_addr[ETH_ALEN];
211 struct ieee80211_if_vlan {
212 struct list_head list;
216 __u32 fwded_frames; /* Mesh forwarded frames */
217 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
218 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
219 atomic_t estab_plinks;
222 #define PREQ_Q_F_START 0x1
223 #define PREQ_Q_F_REFRESH 0x2
224 struct mesh_preq_queue {
225 struct list_head list;
230 enum ieee80211_mgd_state {
231 IEEE80211_MGD_STATE_IDLE,
232 IEEE80211_MGD_STATE_PROBE,
233 IEEE80211_MGD_STATE_AUTH,
234 IEEE80211_MGD_STATE_ASSOC,
237 struct ieee80211_mgd_work {
238 struct list_head list;
239 struct ieee80211_bss *bss;
241 u8 prev_bssid[ETH_ALEN];
242 u8 ssid[IEEE80211_MAX_SSID_LEN];
244 unsigned long timeout;
245 enum ieee80211_mgd_state state;
246 u16 auth_alg, auth_transaction;
250 u8 key[WLAN_KEY_LEN_WEP104];
254 u8 ie[0]; /* for auth or assoc frame, not probe */
257 /* flags used in struct ieee80211_if_managed.flags */
258 enum ieee80211_sta_flags {
259 IEEE80211_STA_BEACON_POLL = BIT(0),
260 IEEE80211_STA_CONNECTION_POLL = BIT(1),
261 IEEE80211_STA_CONTROL_PORT = BIT(2),
262 IEEE80211_STA_WMM_ENABLED = BIT(3),
263 IEEE80211_STA_DISABLE_11N = BIT(4),
264 IEEE80211_STA_CSA_RECEIVED = BIT(5),
265 IEEE80211_STA_MFP_ENABLED = BIT(6),
268 /* flags for MLME request */
269 enum ieee80211_sta_request {
270 IEEE80211_STA_REQ_SCAN,
273 struct ieee80211_if_managed {
274 struct timer_list timer;
275 struct timer_list conn_mon_timer;
276 struct timer_list bcn_mon_timer;
277 struct timer_list chswitch_timer;
278 struct work_struct work;
279 struct work_struct monitor_work;
280 struct work_struct chswitch_work;
281 struct work_struct beacon_loss_work;
283 unsigned long probe_timeout;
286 struct ieee80211_bss *associated;
287 struct list_head work_list;
294 struct sk_buff_head skb_queue;
296 unsigned long timers_running; /* used for quiesce/restart */
297 bool powersave; /* powersave requested for this iface */
299 unsigned long request;
306 IEEE80211_MFP_DISABLED,
307 IEEE80211_MFP_OPTIONAL,
308 IEEE80211_MFP_REQUIRED
309 } mfp; /* management frame protection */
311 int wmm_last_param_set;
314 enum ieee80211_ibss_request {
315 IEEE80211_IBSS_REQ_RUN = 0,
318 struct ieee80211_if_ibss {
319 struct timer_list timer;
320 struct work_struct work;
322 struct sk_buff_head skb_queue;
324 unsigned long request;
325 unsigned long last_scan_completed;
334 u8 ssid[IEEE80211_MAX_SSID_LEN];
337 struct ieee80211_channel *channel;
339 unsigned long ibss_join_req;
340 /* probe response/beacon for IBSS */
341 struct sk_buff *presp, *skb;
344 IEEE80211_IBSS_MLME_SEARCH,
345 IEEE80211_IBSS_MLME_JOINED,
349 struct ieee80211_if_mesh {
350 struct work_struct work;
351 struct timer_list housekeeping_timer;
352 struct timer_list mesh_path_timer;
353 struct sk_buff_head skb_queue;
355 unsigned long timers_running;
359 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
361 /* Active Path Selection Protocol Identifier */
363 /* Active Path Selection Metric Identifier */
365 /* Congestion Control Mode Identifier */
367 /* Local mesh Destination Sequence Number */
369 /* Last used PREQ ID */
372 /* Timestamp of last DSN update */
373 unsigned long last_dsn_update;
374 /* Timestamp of last DSN sent */
375 unsigned long last_preq;
376 struct mesh_rmc *rmc;
377 spinlock_t mesh_preq_queue_lock;
378 struct mesh_preq_queue preq_queue;
380 struct mesh_stats mshstats;
381 struct mesh_config mshcfg;
383 bool accepting_plinks;
386 #ifdef CONFIG_MAC80211_MESH
387 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
388 do { (msh)->mshstats.name++; } while (0)
390 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
395 * enum ieee80211_sub_if_data_flags - virtual interface flags
397 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
398 * @IEEE80211_SDATA_PROMISC: interface is promisc
399 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
400 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
401 * associated stations and deliver multicast frames both
402 * back to wireless media and to the local net stack.
404 enum ieee80211_sub_if_data_flags {
405 IEEE80211_SDATA_ALLMULTI = BIT(0),
406 IEEE80211_SDATA_PROMISC = BIT(1),
407 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
408 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
411 struct ieee80211_sub_if_data {
412 struct list_head list;
414 struct wireless_dev wdev;
417 struct list_head key_list;
419 struct net_device *dev;
420 struct ieee80211_local *local;
424 int drop_unencrypted;
427 * keep track of whether the HT opmode (stored in
428 * vif.bss_info.ht_operation_mode) is valid.
430 bool ht_opmode_valid;
432 /* Fragment table for host-based reassembly */
433 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
434 unsigned int fragment_next;
436 #define NUM_DEFAULT_KEYS 4
437 #define NUM_DEFAULT_MGMT_KEYS 2
438 struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
439 struct ieee80211_key *default_key;
440 struct ieee80211_key *default_mgmt_key;
445 * AP this belongs to: self in AP mode and
446 * corresponding AP in VLAN mode, NULL for
447 * all others (might be needed later in IBSS)
449 struct ieee80211_if_ap *bss;
451 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
452 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
455 struct ieee80211_if_ap ap;
456 struct ieee80211_if_wds wds;
457 struct ieee80211_if_vlan vlan;
458 struct ieee80211_if_managed mgd;
459 struct ieee80211_if_ibss ibss;
460 #ifdef CONFIG_MAC80211_MESH
461 struct ieee80211_if_mesh mesh;
466 #ifdef CONFIG_MAC80211_DEBUGFS
467 struct dentry *debugfsdir;
470 struct dentry *drop_unencrypted;
471 struct dentry *bssid;
473 struct dentry *capab;
474 struct dentry *force_unicast_rateidx;
475 struct dentry *max_ratectrl_rateidx;
478 struct dentry *drop_unencrypted;
479 struct dentry *num_sta_ps;
480 struct dentry *dtim_count;
481 struct dentry *force_unicast_rateidx;
482 struct dentry *max_ratectrl_rateidx;
483 struct dentry *num_buffered_multicast;
486 struct dentry *drop_unencrypted;
488 struct dentry *force_unicast_rateidx;
489 struct dentry *max_ratectrl_rateidx;
492 struct dentry *drop_unencrypted;
493 struct dentry *force_unicast_rateidx;
494 struct dentry *max_ratectrl_rateidx;
501 struct dentry *default_key;
502 struct dentry *default_mgmt_key;
505 #ifdef CONFIG_MAC80211_MESH
506 struct dentry *mesh_stats_dir;
508 struct dentry *fwded_frames;
509 struct dentry *dropped_frames_ttl;
510 struct dentry *dropped_frames_no_route;
511 struct dentry *estab_plinks;
512 struct timer_list mesh_path_timer;
515 struct dentry *mesh_config_dir;
517 struct dentry *dot11MeshRetryTimeout;
518 struct dentry *dot11MeshConfirmTimeout;
519 struct dentry *dot11MeshHoldingTimeout;
520 struct dentry *dot11MeshMaxRetries;
521 struct dentry *dot11MeshTTL;
522 struct dentry *auto_open_plinks;
523 struct dentry *dot11MeshMaxPeerLinks;
524 struct dentry *dot11MeshHWMPactivePathTimeout;
525 struct dentry *dot11MeshHWMPpreqMinInterval;
526 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
527 struct dentry *dot11MeshHWMPmaxPREQretries;
528 struct dentry *path_refresh_time;
529 struct dentry *min_discovery_timeout;
534 /* must be last, dynamically sized area in this! */
535 struct ieee80211_vif vif;
539 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
541 return container_of(p, struct ieee80211_sub_if_data, vif);
545 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
546 u8 mesh_id_len, u8 *mesh_id)
548 #ifdef CONFIG_MAC80211_MESH
549 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
550 ifmsh->mesh_id_len = mesh_id_len;
551 memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
558 IEEE80211_RX_MSG = 1,
559 IEEE80211_TX_STATUS_MSG = 2,
560 IEEE80211_DELBA_MSG = 3,
561 IEEE80211_ADDBA_MSG = 4,
564 enum queue_stop_reason {
565 IEEE80211_QUEUE_STOP_REASON_DRIVER,
566 IEEE80211_QUEUE_STOP_REASON_PS,
567 IEEE80211_QUEUE_STOP_REASON_CSA,
568 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
569 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
570 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
573 struct ieee80211_local {
574 /* embed the driver visible part.
575 * don't cast (use the static inlines below), but we keep
576 * it first anyway so they become a no-op */
577 struct ieee80211_hw hw;
579 const struct ieee80211_ops *ops;
581 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
582 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
583 spinlock_t queue_stop_reason_lock;
586 int monitors, cooked_mntrs;
587 /* number of interfaces with corresponding FIF_ flags */
588 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
589 unsigned int filter_flags; /* FIF_* */
590 struct iw_statistics wstats;
592 /* protects the aggregated multicast list and filter calls */
593 spinlock_t filter_lock;
595 /* aggregated multicast list */
596 struct dev_addr_list *mc_list;
599 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
602 * suspended is true if we finished all the suspend _and_ we have
603 * not yet come up from resume. This is to be used by mac80211
604 * to ensure driver sanity during suspend and mac80211's own
605 * sanity. It can eventually be used for WoW as well.
610 * quiescing is true during the suspend process _only_ to
611 * ease timer cancelling etc.
615 int tx_headroom; /* required headroom for hardware/radiotap */
617 /* Tasklet and skb queue to process calls from IRQ mode. All frames
618 * added to skb_queue will be processed, but frames in
619 * skb_queue_unreliable may be dropped if the total length of these
620 * queues increases over the limit. */
621 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
622 struct tasklet_struct tasklet;
623 struct sk_buff_head skb_queue;
624 struct sk_buff_head skb_queue_unreliable;
628 * The lock only protects the list, hash, timer and counter
629 * against manipulation, reads are done in RCU. Additionally,
630 * the lock protects each BSS's TIM bitmap.
633 unsigned long num_sta;
634 struct list_head sta_list;
635 struct sta_info *sta_hash[STA_HASH_SIZE];
636 struct timer_list sta_cleanup;
638 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
639 struct tasklet_struct tx_pending_tasklet;
642 * This lock is used to prevent concurrent A-MPDU
643 * session start/stop processing, this thus also
644 * synchronises the ->ampdu_action() callback to
645 * drivers and limits it to one at a time.
647 spinlock_t ampdu_lock;
649 /* number of interfaces with corresponding IFF_ flags */
650 atomic_t iff_allmultis, iff_promiscs;
652 struct rate_control_ref *rate_ctrl;
654 struct crypto_blkcipher *wep_tx_tfm;
655 struct crypto_blkcipher *wep_rx_tfm;
659 struct list_head interfaces;
660 struct mutex iflist_mtx;
663 * Key lock, protects sdata's key_list and sta_info's
664 * key pointers (write access, they're RCU.)
669 /* Scanning and BSS list */
670 struct mutex scan_mtx;
671 bool sw_scanning, hw_scanning;
672 struct cfg80211_ssid scan_ssid;
673 struct cfg80211_scan_request int_scan_req;
674 struct cfg80211_scan_request *scan_req;
675 struct ieee80211_channel *scan_channel;
678 int scan_channel_idx;
681 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
682 struct delayed_work scan_work;
683 struct ieee80211_sub_if_data *scan_sdata;
684 enum nl80211_channel_type oper_channel_type;
685 struct ieee80211_channel *oper_channel, *csa_channel;
688 /* dot11CountersTable */
689 u32 dot11TransmittedFragmentCount;
690 u32 dot11MulticastTransmittedFrameCount;
691 u32 dot11FailedCount;
693 u32 dot11MultipleRetryCount;
694 u32 dot11FrameDuplicateCount;
695 u32 dot11ReceivedFragmentCount;
696 u32 dot11MulticastReceivedFrameCount;
697 u32 dot11TransmittedFrameCount;
699 #ifdef CONFIG_MAC80211_LEDS
700 int tx_led_counter, rx_led_counter;
701 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
702 char tx_led_name[32], rx_led_name[32],
703 assoc_led_name[32], radio_led_name[32];
706 #ifdef CONFIG_MAC80211_DEBUGFS
707 struct work_struct sta_debugfs_add;
710 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
711 /* TX/RX handler statistics */
712 unsigned int tx_handlers_drop;
713 unsigned int tx_handlers_queued;
714 unsigned int tx_handlers_drop_unencrypted;
715 unsigned int tx_handlers_drop_fragment;
716 unsigned int tx_handlers_drop_wep;
717 unsigned int tx_handlers_drop_not_assoc;
718 unsigned int tx_handlers_drop_unauth_port;
719 unsigned int rx_handlers_drop;
720 unsigned int rx_handlers_queued;
721 unsigned int rx_handlers_drop_nullfunc;
722 unsigned int rx_handlers_drop_defrag;
723 unsigned int rx_handlers_drop_short;
724 unsigned int rx_handlers_drop_passive_scan;
725 unsigned int tx_expand_skb_head;
726 unsigned int tx_expand_skb_head_cloned;
727 unsigned int rx_expand_skb_head;
728 unsigned int rx_expand_skb_head2;
729 unsigned int rx_handlers_fragments;
730 unsigned int tx_status_drop;
731 #define I802_DEBUG_INC(c) (c)++
732 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
733 #define I802_DEBUG_INC(c) do { } while (0)
734 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
737 int total_ps_buffered; /* total number of all buffered unicast and
738 * multicast packets for power saving stations
740 int wifi_wme_noack_test;
741 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
745 * PS can only be enabled when we have exactly one managed
746 * interface (and monitors) in PS, this then points there.
748 struct ieee80211_sub_if_data *ps_sdata;
749 struct work_struct dynamic_ps_enable_work;
750 struct work_struct dynamic_ps_disable_work;
751 struct timer_list dynamic_ps_timer;
752 struct notifier_block network_latency_notifier;
754 int user_power_level; /* in dBm */
755 int power_constr_level; /* in dBm */
757 struct work_struct restart_work;
759 #ifdef CONFIG_MAC80211_DEBUGFS
760 struct local_debugfsdentries {
761 struct dentry *rcdir;
762 struct dentry *rcname;
763 struct dentry *frequency;
764 struct dentry *total_ps_buffered;
765 struct dentry *wep_iv;
767 struct dentry *queues;
768 struct dentry *reset;
769 struct dentry *noack;
770 struct dentry *statistics;
771 struct local_debugfsdentries_statsdentries {
772 struct dentry *transmitted_fragment_count;
773 struct dentry *multicast_transmitted_frame_count;
774 struct dentry *failed_count;
775 struct dentry *retry_count;
776 struct dentry *multiple_retry_count;
777 struct dentry *frame_duplicate_count;
778 struct dentry *received_fragment_count;
779 struct dentry *multicast_received_frame_count;
780 struct dentry *transmitted_frame_count;
781 struct dentry *wep_undecryptable_count;
782 struct dentry *num_scans;
783 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
784 struct dentry *tx_handlers_drop;
785 struct dentry *tx_handlers_queued;
786 struct dentry *tx_handlers_drop_unencrypted;
787 struct dentry *tx_handlers_drop_fragment;
788 struct dentry *tx_handlers_drop_wep;
789 struct dentry *tx_handlers_drop_not_assoc;
790 struct dentry *tx_handlers_drop_unauth_port;
791 struct dentry *rx_handlers_drop;
792 struct dentry *rx_handlers_queued;
793 struct dentry *rx_handlers_drop_nullfunc;
794 struct dentry *rx_handlers_drop_defrag;
795 struct dentry *rx_handlers_drop_short;
796 struct dentry *rx_handlers_drop_passive_scan;
797 struct dentry *tx_expand_skb_head;
798 struct dentry *tx_expand_skb_head_cloned;
799 struct dentry *rx_expand_skb_head;
800 struct dentry *rx_expand_skb_head2;
801 struct dentry *rx_handlers_fragments;
802 struct dentry *tx_status_drop;
804 struct dentry *dot11ACKFailureCount;
805 struct dentry *dot11RTSFailureCount;
806 struct dentry *dot11FCSErrorCount;
807 struct dentry *dot11RTSSuccessCount;
809 struct dentry *stations;
815 static inline struct ieee80211_sub_if_data *
816 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
818 return netdev_priv(dev);
821 /* this struct represents 802.11n's RA/TID combination */
822 struct ieee80211_ra_tid {
827 /* Parsed Information Elements */
828 struct ieee802_11_elems {
832 /* pointers to IEs */
838 struct ieee80211_tim_ie *tim;
847 struct ieee80211_ht_cap *ht_cap_elem;
848 struct ieee80211_ht_info *ht_info_elem;
858 u8 *quiet_elem; /* first quite element */
861 /* length of them, respectively */
873 u8 ext_supp_rates_len;
882 u8 ch_switch_elem_len;
884 u8 pwr_constr_elem_len;
886 u8 num_of_quiet_elem; /* can be more the one */
890 static inline struct ieee80211_local *hw_to_local(
891 struct ieee80211_hw *hw)
893 return container_of(hw, struct ieee80211_local, hw);
896 static inline struct ieee80211_hw *local_to_hw(
897 struct ieee80211_local *local)
903 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
905 return compare_ether_addr(raddr, addr) == 0 ||
906 is_broadcast_ether_addr(raddr);
910 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
911 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
912 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
914 void ieee80211_configure_filter(struct ieee80211_local *local);
915 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
917 /* wireless extensions */
918 extern const struct iw_handler_def ieee80211_iw_handler_def;
921 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
922 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
923 struct cfg80211_auth_request *req);
924 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
925 struct cfg80211_assoc_request *req);
926 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
927 struct cfg80211_deauth_request *req,
929 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
930 struct cfg80211_disassoc_request *req,
932 ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
933 struct sk_buff *skb);
934 void ieee80211_send_pspoll(struct ieee80211_local *local,
935 struct ieee80211_sub_if_data *sdata);
936 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
937 int ieee80211_max_network_latency(struct notifier_block *nb,
938 unsigned long data, void *dummy);
939 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
940 struct ieee80211_channel_sw_ie *sw_elem,
941 struct ieee80211_bss *bss);
942 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
943 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
946 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
947 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
949 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
950 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
951 u8 *bssid, u8 *addr, u32 supp_rates);
952 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
953 struct cfg80211_ibss_params *params);
954 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
955 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
956 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
958 /* scan/BSS handling */
959 void ieee80211_scan_work(struct work_struct *work);
960 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
961 const u8 *ssid, u8 ssid_len);
962 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
963 struct cfg80211_scan_request *req);
964 void ieee80211_scan_cancel(struct ieee80211_local *local);
966 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
968 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
969 struct ieee80211_bss *
970 ieee80211_bss_info_update(struct ieee80211_local *local,
971 struct ieee80211_rx_status *rx_status,
972 struct ieee80211_mgmt *mgmt,
974 struct ieee802_11_elems *elems,
975 struct ieee80211_channel *channel,
977 struct ieee80211_bss *
978 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
979 u8 *ssid, u8 ssid_len);
980 void ieee80211_rx_bss_put(struct ieee80211_local *local,
981 struct ieee80211_bss *bss);
983 /* interface handling */
984 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
985 struct net_device **new_dev, enum nl80211_iftype type,
986 struct vif_params *params);
987 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
988 enum nl80211_iftype type);
989 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
990 void ieee80211_remove_interfaces(struct ieee80211_local *local);
991 u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
992 void ieee80211_recalc_idle(struct ieee80211_local *local);
995 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
996 void ieee80211_tx_pending(unsigned long data);
997 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
998 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
1001 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
1002 struct ieee80211_ht_cap *ht_cap_ie,
1003 struct ieee80211_sta_ht_cap *ht_cap);
1004 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
1005 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1006 const u8 *da, u16 tid,
1007 u16 initiator, u16 reason_code);
1009 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
1010 u16 tid, u16 initiator, u16 reason);
1011 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1012 u16 initiator, u16 reason);
1013 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
1014 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1015 struct sta_info *sta,
1016 struct ieee80211_mgmt *mgmt, size_t len);
1017 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1018 struct sta_info *sta,
1019 struct ieee80211_mgmt *mgmt,
1021 void ieee80211_process_addba_request(struct ieee80211_local *local,
1022 struct sta_info *sta,
1023 struct ieee80211_mgmt *mgmt,
1026 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1027 enum ieee80211_back_parties initiator);
1029 /* Spectrum management */
1030 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1031 struct ieee80211_mgmt *mgmt,
1034 /* Suspend/resume and hw reconfiguration */
1035 int ieee80211_reconfig(struct ieee80211_local *local);
1038 int __ieee80211_suspend(struct ieee80211_hw *hw);
1040 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1042 return ieee80211_reconfig(hw_to_local(hw));
1045 static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
1050 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1056 /* utility functions/constants */
1057 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1058 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1059 enum nl80211_iftype type);
1060 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1061 int rate, int erp, int short_preamble);
1062 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1063 struct ieee80211_hdr *hdr, const u8 *tsc,
1065 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
1066 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1068 void ieee802_11_parse_elems(u8 *start, size_t len,
1069 struct ieee802_11_elems *elems);
1070 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1071 struct ieee802_11_elems *elems,
1072 u64 filter, u32 crc);
1073 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1074 enum ieee80211_band band);
1076 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1077 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1078 void ieee80211_dynamic_ps_timer(unsigned long data);
1079 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1080 struct ieee80211_sub_if_data *sdata,
1082 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1083 struct ieee80211_hdr *hdr);
1084 void ieee80211_beacon_loss_work(struct work_struct *work);
1086 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1087 enum queue_stop_reason reason);
1088 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1089 enum queue_stop_reason reason);
1090 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1091 enum queue_stop_reason reason);
1092 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1093 enum queue_stop_reason reason);
1094 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1095 struct sk_buff *skb);
1096 int ieee80211_add_pending_skbs(struct ieee80211_local *local,
1097 struct sk_buff_head *skbs);
1099 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1100 u16 transaction, u16 auth_alg,
1101 u8 *extra, size_t extra_len, const u8 *bssid,
1102 const u8 *key, u8 key_len, u8 key_idx);
1103 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1104 const u8 *ie, size_t ie_len);
1105 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1106 const u8 *ssid, size_t ssid_len,
1107 const u8 *ie, size_t ie_len);
1109 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1110 const size_t supp_rates_len,
1111 const u8 *supp_rates);
1112 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1113 struct ieee802_11_elems *elems,
1114 enum ieee80211_band band);
1116 #ifdef CONFIG_MAC80211_NOINLINE
1117 #define debug_noinline noinline
1119 #define debug_noinline
1122 #endif /* IEEE80211_I_H */