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,
574 * mac80211 scan flags - currently active scan mode
576 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
577 * well be on the operating channel
578 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
579 * determine if we are on the operating channel or not
580 * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning,
581 * gets only set in conjunction with SCAN_SW_SCANNING
590 * enum mac80211_scan_state - scan state machine states
592 * @SCAN_DECISION: Main entry point to the scan state machine, this state
593 * determines if we should keep on scanning or switch back to the
595 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
596 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
597 * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP
598 * about us leaving the channel and stop all associated STA interfaces
599 * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the
600 * AP about us being back and restart all associated STA interfaces
602 enum mac80211_scan_state {
606 SCAN_LEAVE_OPER_CHANNEL,
607 SCAN_ENTER_OPER_CHANNEL,
610 struct ieee80211_local {
611 /* embed the driver visible part.
612 * don't cast (use the static inlines below), but we keep
613 * it first anyway so they become a no-op */
614 struct ieee80211_hw hw;
616 const struct ieee80211_ops *ops;
618 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
619 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
620 spinlock_t queue_stop_reason_lock;
623 int monitors, cooked_mntrs;
624 /* number of interfaces with corresponding FIF_ flags */
625 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
626 unsigned int filter_flags; /* FIF_* */
627 struct iw_statistics wstats;
629 /* protects the aggregated multicast list and filter calls */
630 spinlock_t filter_lock;
632 /* aggregated multicast list */
633 struct dev_addr_list *mc_list;
636 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
639 * suspended is true if we finished all the suspend _and_ we have
640 * not yet come up from resume. This is to be used by mac80211
641 * to ensure driver sanity during suspend and mac80211's own
642 * sanity. It can eventually be used for WoW as well.
647 * quiescing is true during the suspend process _only_ to
648 * ease timer cancelling etc.
652 int tx_headroom; /* required headroom for hardware/radiotap */
654 /* Tasklet and skb queue to process calls from IRQ mode. All frames
655 * added to skb_queue will be processed, but frames in
656 * skb_queue_unreliable may be dropped if the total length of these
657 * queues increases over the limit. */
658 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
659 struct tasklet_struct tasklet;
660 struct sk_buff_head skb_queue;
661 struct sk_buff_head skb_queue_unreliable;
665 * The lock only protects the list, hash, timer and counter
666 * against manipulation, reads are done in RCU. Additionally,
667 * the lock protects each BSS's TIM bitmap.
670 unsigned long num_sta;
671 struct list_head sta_list;
672 struct sta_info *sta_hash[STA_HASH_SIZE];
673 struct timer_list sta_cleanup;
675 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
676 struct tasklet_struct tx_pending_tasklet;
679 * This lock is used to prevent concurrent A-MPDU
680 * session start/stop processing, this thus also
681 * synchronises the ->ampdu_action() callback to
682 * drivers and limits it to one at a time.
684 spinlock_t ampdu_lock;
686 /* number of interfaces with corresponding IFF_ flags */
687 atomic_t iff_allmultis, iff_promiscs;
689 struct rate_control_ref *rate_ctrl;
691 struct crypto_blkcipher *wep_tx_tfm;
692 struct crypto_blkcipher *wep_rx_tfm;
696 struct list_head interfaces;
697 struct mutex iflist_mtx;
700 * Key lock, protects sdata's key_list and sta_info's
701 * key pointers (write access, they're RCU.)
706 /* Scanning and BSS list */
707 struct mutex scan_mtx;
708 unsigned long scanning;
709 struct cfg80211_ssid scan_ssid;
710 struct cfg80211_scan_request int_scan_req;
711 struct cfg80211_scan_request *scan_req;
712 struct ieee80211_channel *scan_channel;
715 int scan_channel_idx;
718 enum mac80211_scan_state scan_state;
719 struct delayed_work scan_work;
720 struct ieee80211_sub_if_data *scan_sdata;
721 enum nl80211_channel_type oper_channel_type;
722 struct ieee80211_channel *oper_channel, *csa_channel;
725 /* dot11CountersTable */
726 u32 dot11TransmittedFragmentCount;
727 u32 dot11MulticastTransmittedFrameCount;
728 u32 dot11FailedCount;
730 u32 dot11MultipleRetryCount;
731 u32 dot11FrameDuplicateCount;
732 u32 dot11ReceivedFragmentCount;
733 u32 dot11MulticastReceivedFrameCount;
734 u32 dot11TransmittedFrameCount;
736 #ifdef CONFIG_MAC80211_LEDS
737 int tx_led_counter, rx_led_counter;
738 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
739 char tx_led_name[32], rx_led_name[32],
740 assoc_led_name[32], radio_led_name[32];
743 #ifdef CONFIG_MAC80211_DEBUGFS
744 struct work_struct sta_debugfs_add;
747 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
748 /* TX/RX handler statistics */
749 unsigned int tx_handlers_drop;
750 unsigned int tx_handlers_queued;
751 unsigned int tx_handlers_drop_unencrypted;
752 unsigned int tx_handlers_drop_fragment;
753 unsigned int tx_handlers_drop_wep;
754 unsigned int tx_handlers_drop_not_assoc;
755 unsigned int tx_handlers_drop_unauth_port;
756 unsigned int rx_handlers_drop;
757 unsigned int rx_handlers_queued;
758 unsigned int rx_handlers_drop_nullfunc;
759 unsigned int rx_handlers_drop_defrag;
760 unsigned int rx_handlers_drop_short;
761 unsigned int rx_handlers_drop_passive_scan;
762 unsigned int tx_expand_skb_head;
763 unsigned int tx_expand_skb_head_cloned;
764 unsigned int rx_expand_skb_head;
765 unsigned int rx_expand_skb_head2;
766 unsigned int rx_handlers_fragments;
767 unsigned int tx_status_drop;
768 #define I802_DEBUG_INC(c) (c)++
769 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
770 #define I802_DEBUG_INC(c) do { } while (0)
771 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
774 int total_ps_buffered; /* total number of all buffered unicast and
775 * multicast packets for power saving stations
777 int wifi_wme_noack_test;
778 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
782 * PS can only be enabled when we have exactly one managed
783 * interface (and monitors) in PS, this then points there.
785 struct ieee80211_sub_if_data *ps_sdata;
786 struct work_struct dynamic_ps_enable_work;
787 struct work_struct dynamic_ps_disable_work;
788 struct timer_list dynamic_ps_timer;
789 struct notifier_block network_latency_notifier;
791 int user_power_level; /* in dBm */
792 int power_constr_level; /* in dBm */
794 struct work_struct restart_work;
796 #ifdef CONFIG_MAC80211_DEBUGFS
797 struct local_debugfsdentries {
798 struct dentry *rcdir;
799 struct dentry *rcname;
800 struct dentry *frequency;
801 struct dentry *total_ps_buffered;
802 struct dentry *wep_iv;
804 struct dentry *queues;
805 struct dentry *reset;
806 struct dentry *noack;
807 struct dentry *statistics;
808 struct local_debugfsdentries_statsdentries {
809 struct dentry *transmitted_fragment_count;
810 struct dentry *multicast_transmitted_frame_count;
811 struct dentry *failed_count;
812 struct dentry *retry_count;
813 struct dentry *multiple_retry_count;
814 struct dentry *frame_duplicate_count;
815 struct dentry *received_fragment_count;
816 struct dentry *multicast_received_frame_count;
817 struct dentry *transmitted_frame_count;
818 struct dentry *wep_undecryptable_count;
819 struct dentry *num_scans;
820 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
821 struct dentry *tx_handlers_drop;
822 struct dentry *tx_handlers_queued;
823 struct dentry *tx_handlers_drop_unencrypted;
824 struct dentry *tx_handlers_drop_fragment;
825 struct dentry *tx_handlers_drop_wep;
826 struct dentry *tx_handlers_drop_not_assoc;
827 struct dentry *tx_handlers_drop_unauth_port;
828 struct dentry *rx_handlers_drop;
829 struct dentry *rx_handlers_queued;
830 struct dentry *rx_handlers_drop_nullfunc;
831 struct dentry *rx_handlers_drop_defrag;
832 struct dentry *rx_handlers_drop_short;
833 struct dentry *rx_handlers_drop_passive_scan;
834 struct dentry *tx_expand_skb_head;
835 struct dentry *tx_expand_skb_head_cloned;
836 struct dentry *rx_expand_skb_head;
837 struct dentry *rx_expand_skb_head2;
838 struct dentry *rx_handlers_fragments;
839 struct dentry *tx_status_drop;
841 struct dentry *dot11ACKFailureCount;
842 struct dentry *dot11RTSFailureCount;
843 struct dentry *dot11FCSErrorCount;
844 struct dentry *dot11RTSSuccessCount;
846 struct dentry *stations;
852 static inline struct ieee80211_sub_if_data *
853 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
855 return netdev_priv(dev);
858 /* this struct represents 802.11n's RA/TID combination */
859 struct ieee80211_ra_tid {
864 /* Parsed Information Elements */
865 struct ieee802_11_elems {
869 /* pointers to IEs */
875 struct ieee80211_tim_ie *tim;
884 struct ieee80211_ht_cap *ht_cap_elem;
885 struct ieee80211_ht_info *ht_info_elem;
895 u8 *quiet_elem; /* first quite element */
898 /* length of them, respectively */
910 u8 ext_supp_rates_len;
919 u8 ch_switch_elem_len;
921 u8 pwr_constr_elem_len;
923 u8 num_of_quiet_elem; /* can be more the one */
927 static inline struct ieee80211_local *hw_to_local(
928 struct ieee80211_hw *hw)
930 return container_of(hw, struct ieee80211_local, hw);
933 static inline struct ieee80211_hw *local_to_hw(
934 struct ieee80211_local *local)
940 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
942 return compare_ether_addr(raddr, addr) == 0 ||
943 is_broadcast_ether_addr(raddr);
947 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
948 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
949 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
951 void ieee80211_configure_filter(struct ieee80211_local *local);
952 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
954 /* wireless extensions */
955 extern const struct iw_handler_def ieee80211_iw_handler_def;
958 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
959 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
960 struct cfg80211_auth_request *req);
961 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
962 struct cfg80211_assoc_request *req);
963 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
964 struct cfg80211_deauth_request *req,
966 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
967 struct cfg80211_disassoc_request *req,
969 ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
970 struct sk_buff *skb);
971 void ieee80211_send_pspoll(struct ieee80211_local *local,
972 struct ieee80211_sub_if_data *sdata);
973 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
974 int ieee80211_max_network_latency(struct notifier_block *nb,
975 unsigned long data, void *dummy);
976 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
977 struct ieee80211_channel_sw_ie *sw_elem,
978 struct ieee80211_bss *bss);
979 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
980 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
983 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
984 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
986 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
987 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
988 u8 *bssid, u8 *addr, u32 supp_rates);
989 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
990 struct cfg80211_ibss_params *params);
991 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
992 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
993 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
995 /* scan/BSS handling */
996 void ieee80211_scan_work(struct work_struct *work);
997 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
998 const u8 *ssid, u8 ssid_len);
999 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1000 struct cfg80211_scan_request *req);
1001 void ieee80211_scan_cancel(struct ieee80211_local *local);
1003 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1005 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1006 struct ieee80211_bss *
1007 ieee80211_bss_info_update(struct ieee80211_local *local,
1008 struct ieee80211_rx_status *rx_status,
1009 struct ieee80211_mgmt *mgmt,
1011 struct ieee802_11_elems *elems,
1012 struct ieee80211_channel *channel,
1014 struct ieee80211_bss *
1015 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
1016 u8 *ssid, u8 ssid_len);
1017 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1018 struct ieee80211_bss *bss);
1020 /* interface handling */
1021 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1022 struct net_device **new_dev, enum nl80211_iftype type,
1023 struct vif_params *params);
1024 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1025 enum nl80211_iftype type);
1026 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1027 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1028 u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
1029 void ieee80211_recalc_idle(struct ieee80211_local *local);
1032 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1033 void ieee80211_tx_pending(unsigned long data);
1034 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
1035 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
1038 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
1039 struct ieee80211_ht_cap *ht_cap_ie,
1040 struct ieee80211_sta_ht_cap *ht_cap);
1041 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
1042 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1043 const u8 *da, u16 tid,
1044 u16 initiator, u16 reason_code);
1046 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
1047 u16 tid, u16 initiator, u16 reason);
1048 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1049 u16 initiator, u16 reason);
1050 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
1051 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1052 struct sta_info *sta,
1053 struct ieee80211_mgmt *mgmt, size_t len);
1054 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1055 struct sta_info *sta,
1056 struct ieee80211_mgmt *mgmt,
1058 void ieee80211_process_addba_request(struct ieee80211_local *local,
1059 struct sta_info *sta,
1060 struct ieee80211_mgmt *mgmt,
1063 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1064 enum ieee80211_back_parties initiator);
1066 /* Spectrum management */
1067 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1068 struct ieee80211_mgmt *mgmt,
1071 /* Suspend/resume and hw reconfiguration */
1072 int ieee80211_reconfig(struct ieee80211_local *local);
1075 int __ieee80211_suspend(struct ieee80211_hw *hw);
1077 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1079 return ieee80211_reconfig(hw_to_local(hw));
1082 static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
1087 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1093 /* utility functions/constants */
1094 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1095 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1096 enum nl80211_iftype type);
1097 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1098 int rate, int erp, int short_preamble);
1099 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1100 struct ieee80211_hdr *hdr, const u8 *tsc,
1102 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
1103 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1105 void ieee802_11_parse_elems(u8 *start, size_t len,
1106 struct ieee802_11_elems *elems);
1107 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1108 struct ieee802_11_elems *elems,
1109 u64 filter, u32 crc);
1110 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1111 enum ieee80211_band band);
1113 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1114 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1115 void ieee80211_dynamic_ps_timer(unsigned long data);
1116 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1117 struct ieee80211_sub_if_data *sdata,
1119 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1120 struct ieee80211_hdr *hdr);
1121 void ieee80211_beacon_loss_work(struct work_struct *work);
1123 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1124 enum queue_stop_reason reason);
1125 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1126 enum queue_stop_reason reason);
1127 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1128 enum queue_stop_reason reason);
1129 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1130 enum queue_stop_reason reason);
1131 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1132 struct sk_buff *skb);
1133 int ieee80211_add_pending_skbs(struct ieee80211_local *local,
1134 struct sk_buff_head *skbs);
1136 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1137 u16 transaction, u16 auth_alg,
1138 u8 *extra, size_t extra_len, const u8 *bssid,
1139 const u8 *key, u8 key_len, u8 key_idx);
1140 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1141 const u8 *ie, size_t ie_len);
1142 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1143 const u8 *ssid, size_t ssid_len,
1144 const u8 *ie, size_t ie_len);
1146 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1147 const size_t supp_rates_len,
1148 const u8 *supp_rates);
1149 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1150 struct ieee802_11_elems *elems,
1151 enum ieee80211_band band);
1153 #ifdef CONFIG_MAC80211_NOINLINE
1154 #define debug_noinline noinline
1156 #define debug_noinline
1159 #endif /* IEEE80211_I_H */