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/wireless.h>
28 #include <net/iw_handler.h>
29 #include <net/mac80211.h>
33 struct ieee80211_local
;
35 /* Maximum number of broadcast/multicast frames to buffer when some of the
36 * associated stations are using power saving. */
37 #define AP_MAX_BC_BUFFER 128
39 /* Maximum number of frames buffered to all STAs, including multicast frames.
40 * Note: increasing this limit increases the potential memory requirement. Each
41 * frame can be up to about 2 kB long. */
42 #define TOTAL_MAX_TX_BUFFER 512
44 /* Required encryption head and tailroom */
45 #define IEEE80211_ENCRYPT_HEADROOM 8
46 #define IEEE80211_ENCRYPT_TAILROOM 12
48 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
49 * reception of at least three fragmented frames. This limit can be increased
50 * by changing this define, at the cost of slower frame reassembly and
51 * increased memory use (about 2 kB of RAM per entry). */
52 #define IEEE80211_FRAGMENT_MAX 4
55 * Time after which we ignore scan results and no longer report/use
58 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
60 struct ieee80211_fragment_entry
{
61 unsigned long first_frag_time
;
63 unsigned int rx_queue
;
64 unsigned int last_frag
;
65 unsigned int extra_len
;
66 struct sk_buff_head skb_list
;
67 int ccmp
; /* Whether fragments were encrypted with CCMP */
68 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
72 struct ieee80211_bss
{
73 struct list_head list
;
74 struct ieee80211_bss
*hnext
;
80 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
82 u16 capability
; /* host byte order */
83 enum ieee80211_band band
;
85 int signal
, noise
, qual
;
86 u8
*ies
; /* all information elements from the last Beacon or Probe
87 * Response frames; note Beacon frame is not allowed to
88 * override values from Probe Response */
91 #ifdef CONFIG_MAC80211_MESH
96 #define IEEE80211_MAX_SUPP_RATES 32
97 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
98 size_t supp_rates_len
;
102 unsigned long last_probe_resp
;
103 unsigned long last_update
;
105 /* during assocation, we save an ERP value from a probe response so
106 * that we can feed ERP info to the driver when handling the
107 * association completes. these fields probably won't be up-to-date
108 * otherwise, you probably don't want to use them. */
113 static inline u8
*bss_mesh_cfg(struct ieee80211_bss
*bss
)
115 #ifdef CONFIG_MAC80211_MESH
116 return bss
->mesh_cfg
;
121 static inline u8
*bss_mesh_id(struct ieee80211_bss
*bss
)
123 #ifdef CONFIG_MAC80211_MESH
129 static inline u8
bss_mesh_id_len(struct ieee80211_bss
*bss
)
131 #ifdef CONFIG_MAC80211_MESH
132 return bss
->mesh_id_len
;
138 typedef unsigned __bitwise__ ieee80211_tx_result
;
139 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
140 #define TX_DROP ((__force ieee80211_tx_result) 1u)
141 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
143 #define IEEE80211_TX_FRAGMENTED BIT(0)
144 #define IEEE80211_TX_UNICAST BIT(1)
145 #define IEEE80211_TX_PS_BUFFERED BIT(2)
147 struct ieee80211_tx_data
{
149 struct net_device
*dev
;
150 struct ieee80211_local
*local
;
151 struct ieee80211_sub_if_data
*sdata
;
152 struct sta_info
*sta
;
153 struct ieee80211_key
*key
;
155 struct ieee80211_channel
*channel
;
157 /* Extra fragments (in addition to the first fragment
159 struct sk_buff
**extra_frag
;
167 typedef unsigned __bitwise__ ieee80211_rx_result
;
168 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
169 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
170 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
171 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
173 #define IEEE80211_RX_IN_SCAN BIT(0)
174 /* frame is destined to interface currently processed (incl. multicast frames) */
175 #define IEEE80211_RX_RA_MATCH BIT(1)
176 #define IEEE80211_RX_AMSDU BIT(2)
177 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
178 #define IEEE80211_RX_FRAGMENTED BIT(4)
180 struct ieee80211_rx_data
{
182 struct net_device
*dev
;
183 struct ieee80211_local
*local
;
184 struct ieee80211_sub_if_data
*sdata
;
185 struct sta_info
*sta
;
186 struct ieee80211_key
*key
;
187 struct ieee80211_rx_status
*status
;
188 struct ieee80211_rate
*rate
;
191 int sent_ps_buffered
;
197 struct ieee80211_tx_stored_packet
{
199 struct sk_buff
**extra_frag
;
205 int head_len
, tail_len
;
209 struct ieee80211_if_ap
{
210 struct beacon_data
*beacon
;
212 struct list_head vlans
;
214 /* yes, this looks ugly, but guarantees that we can later use
216 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
217 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
218 struct sk_buff_head ps_bc_buf
;
219 atomic_t num_sta_ps
; /* number of stations in PS mode */
223 struct ieee80211_if_wds
{
224 struct sta_info
*sta
;
225 u8 remote_addr
[ETH_ALEN
];
228 struct ieee80211_if_vlan
{
229 struct list_head list
;
233 __u32 fwded_frames
; /* Mesh forwarded frames */
234 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
235 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
236 atomic_t estab_plinks
;
239 #define PREQ_Q_F_START 0x1
240 #define PREQ_Q_F_REFRESH 0x2
241 struct mesh_preq_queue
{
242 struct list_head list
;
247 /* flags used in struct ieee80211_if_sta.flags */
248 #define IEEE80211_STA_SSID_SET BIT(0)
249 #define IEEE80211_STA_BSSID_SET BIT(1)
250 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
251 #define IEEE80211_STA_AUTHENTICATED BIT(3)
252 #define IEEE80211_STA_ASSOCIATED BIT(4)
253 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
254 #define IEEE80211_STA_CREATE_IBSS BIT(6)
255 #define IEEE80211_STA_MIXED_CELL BIT(7)
256 #define IEEE80211_STA_WMM_ENABLED BIT(8)
257 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
258 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
259 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
260 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
261 #define IEEE80211_STA_TKIP_WEP_USED BIT(14)
262 #define IEEE80211_STA_CSA_RECEIVED BIT(15)
263 /* flags for MLME request */
264 #define IEEE80211_STA_REQ_SCAN 0
265 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
266 #define IEEE80211_STA_REQ_AUTH 2
267 #define IEEE80211_STA_REQ_RUN 3
269 /* STA/IBSS MLME states */
270 enum ieee80211_sta_mlme_state
{
271 IEEE80211_STA_MLME_DISABLED
,
272 IEEE80211_STA_MLME_DIRECT_PROBE
,
273 IEEE80211_STA_MLME_AUTHENTICATE
,
274 IEEE80211_STA_MLME_ASSOCIATE
,
275 IEEE80211_STA_MLME_ASSOCIATED
,
276 IEEE80211_STA_MLME_IBSS_SEARCH
,
277 IEEE80211_STA_MLME_IBSS_JOINED
,
280 /* bitfield of allowed auth algs */
281 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
282 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
283 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
285 struct ieee80211_if_sta
{
286 struct timer_list timer
;
287 struct timer_list chswitch_timer
;
288 struct work_struct work
;
289 struct work_struct chswitch_work
;
290 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
291 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
292 enum ieee80211_sta_mlme_state state
;
294 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
295 size_t scan_ssid_len
;
298 u8
*extra_ie
; /* to be added to the end of AssocReq */
301 /* The last AssocReq/Resp IEs */
302 u8
*assocreq_ies
, *assocresp_ies
;
303 size_t assocreq_ies_len
, assocresp_ies_len
;
305 struct sk_buff_head skb_queue
;
307 int assoc_scan_tries
; /* number of scans done pre-association */
308 int direct_probe_tries
; /* retries for direct probes */
309 int auth_tries
; /* retries for auth req */
310 int assoc_tries
; /* retries for assoc req */
312 unsigned long request
;
314 unsigned long last_probe
;
318 unsigned int auth_algs
; /* bitfield of allowed auth algs */
319 int auth_alg
; /* currently used IEEE 802.11 authentication algorithm */
320 int auth_transaction
;
322 unsigned long ibss_join_req
;
323 struct sk_buff
*probe_resp
; /* ProbeResp template for IBSS */
324 u32 supp_rates_bits
[IEEE80211_NUM_BANDS
];
326 int wmm_last_param_set
;
329 struct ieee80211_if_mesh
{
330 struct work_struct work
;
331 struct timer_list housekeeping_timer
;
332 struct timer_list mesh_path_timer
;
333 struct sk_buff_head skb_queue
;
337 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
339 /* Active Path Selection Protocol Identifier */
341 /* Active Path Selection Metric Identifier */
343 /* Congestion Control Mode Identifier */
345 /* Local mesh Destination Sequence Number */
347 /* Last used PREQ ID */
350 /* Timestamp of last DSN update */
351 unsigned long last_dsn_update
;
352 /* Timestamp of last DSN sent */
353 unsigned long last_preq
;
354 struct mesh_rmc
*rmc
;
355 spinlock_t mesh_preq_queue_lock
;
356 struct mesh_preq_queue preq_queue
;
358 struct mesh_stats mshstats
;
359 struct mesh_config mshcfg
;
361 bool accepting_plinks
;
364 #ifdef CONFIG_MAC80211_MESH
365 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
366 do { (msh)->mshstats.name++; } while (0)
368 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
373 * enum ieee80211_sub_if_data_flags - virtual interface flags
375 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
376 * @IEEE80211_SDATA_PROMISC: interface is promisc
377 * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
378 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
379 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
380 * associated stations and deliver multicast frames both
381 * back to wireless media and to the local net stack.
383 enum ieee80211_sub_if_data_flags
{
384 IEEE80211_SDATA_ALLMULTI
= BIT(0),
385 IEEE80211_SDATA_PROMISC
= BIT(1),
386 IEEE80211_SDATA_USERSPACE_MLME
= BIT(2),
387 IEEE80211_SDATA_OPERATING_GMODE
= BIT(3),
388 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(4),
391 struct ieee80211_sub_if_data
{
392 struct list_head list
;
394 struct wireless_dev wdev
;
397 struct list_head key_list
;
399 struct net_device
*dev
;
400 struct ieee80211_local
*local
;
404 int drop_unencrypted
;
406 /* Fragment table for host-based reassembly */
407 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
408 unsigned int fragment_next
;
410 #define NUM_DEFAULT_KEYS 4
411 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
];
412 struct ieee80211_key
*default_key
;
417 * AP this belongs to: self in AP mode and
418 * corresponding AP in VLAN mode, NULL for
419 * all others (might be needed later in IBSS)
421 struct ieee80211_if_ap
*bss
;
423 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
424 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
427 struct ieee80211_if_ap ap
;
428 struct ieee80211_if_wds wds
;
429 struct ieee80211_if_vlan vlan
;
430 struct ieee80211_if_sta sta
;
431 #ifdef CONFIG_MAC80211_MESH
432 struct ieee80211_if_mesh mesh
;
437 #ifdef CONFIG_MAC80211_DEBUGFS
438 struct dentry
*debugfsdir
;
441 struct dentry
*drop_unencrypted
;
442 struct dentry
*state
;
443 struct dentry
*bssid
;
444 struct dentry
*prev_bssid
;
445 struct dentry
*ssid_len
;
447 struct dentry
*ap_capab
;
448 struct dentry
*capab
;
449 struct dentry
*extra_ie_len
;
450 struct dentry
*auth_tries
;
451 struct dentry
*assoc_tries
;
452 struct dentry
*auth_algs
;
453 struct dentry
*auth_alg
;
454 struct dentry
*auth_transaction
;
455 struct dentry
*flags
;
456 struct dentry
*force_unicast_rateidx
;
457 struct dentry
*max_ratectrl_rateidx
;
460 struct dentry
*drop_unencrypted
;
461 struct dentry
*num_sta_ps
;
462 struct dentry
*dtim_count
;
463 struct dentry
*force_unicast_rateidx
;
464 struct dentry
*max_ratectrl_rateidx
;
465 struct dentry
*num_buffered_multicast
;
468 struct dentry
*drop_unencrypted
;
470 struct dentry
*force_unicast_rateidx
;
471 struct dentry
*max_ratectrl_rateidx
;
474 struct dentry
*drop_unencrypted
;
475 struct dentry
*force_unicast_rateidx
;
476 struct dentry
*max_ratectrl_rateidx
;
483 struct dentry
*default_key
;
486 #ifdef CONFIG_MAC80211_MESH
487 struct dentry
*mesh_stats_dir
;
489 struct dentry
*fwded_frames
;
490 struct dentry
*dropped_frames_ttl
;
491 struct dentry
*dropped_frames_no_route
;
492 struct dentry
*estab_plinks
;
493 struct timer_list mesh_path_timer
;
496 struct dentry
*mesh_config_dir
;
498 struct dentry
*dot11MeshRetryTimeout
;
499 struct dentry
*dot11MeshConfirmTimeout
;
500 struct dentry
*dot11MeshHoldingTimeout
;
501 struct dentry
*dot11MeshMaxRetries
;
502 struct dentry
*dot11MeshTTL
;
503 struct dentry
*auto_open_plinks
;
504 struct dentry
*dot11MeshMaxPeerLinks
;
505 struct dentry
*dot11MeshHWMPactivePathTimeout
;
506 struct dentry
*dot11MeshHWMPpreqMinInterval
;
507 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
508 struct dentry
*dot11MeshHWMPmaxPREQretries
;
509 struct dentry
*path_refresh_time
;
510 struct dentry
*min_discovery_timeout
;
515 /* must be last, dynamically sized area in this! */
516 struct ieee80211_vif vif
;
520 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
522 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
526 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data
*sdata
,
527 u8 mesh_id_len
, u8
*mesh_id
)
529 #ifdef CONFIG_MAC80211_MESH
530 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
531 ifmsh
->mesh_id_len
= mesh_id_len
;
532 memcpy(ifmsh
->mesh_id
, mesh_id
, mesh_id_len
);
539 IEEE80211_RX_MSG
= 1,
540 IEEE80211_TX_STATUS_MSG
= 2,
541 IEEE80211_DELBA_MSG
= 3,
542 IEEE80211_ADDBA_MSG
= 4,
545 enum queue_stop_reason
{
546 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
547 IEEE80211_QUEUE_STOP_REASON_PS
,
548 IEEE80211_QUEUE_STOP_REASON_CSA
551 /* maximum number of hardware queues we support. */
552 #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
554 struct ieee80211_master_priv
{
555 struct ieee80211_local
*local
;
558 struct ieee80211_local
{
559 /* embed the driver visible part.
560 * don't cast (use the static inlines below), but we keep
561 * it first anyway so they become a no-op */
562 struct ieee80211_hw hw
;
564 const struct ieee80211_ops
*ops
;
566 unsigned long queue_pool
[BITS_TO_LONGS(QD_MAX_QUEUES
)];
567 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
568 spinlock_t queue_stop_reason_lock
;
569 struct net_device
*mdev
; /* wmaster# - "master" 802.11 device */
571 int monitors
, cooked_mntrs
;
572 /* number of interfaces with corresponding FIF_ flags */
573 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
;
574 unsigned int filter_flags
; /* FIF_* */
575 struct iw_statistics wstats
;
577 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
578 int tx_headroom
; /* required headroom for hardware/radiotap */
580 /* Tasklet and skb queue to process calls from IRQ mode. All frames
581 * added to skb_queue will be processed, but frames in
582 * skb_queue_unreliable may be dropped if the total length of these
583 * queues increases over the limit. */
584 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
585 struct tasklet_struct tasklet
;
586 struct sk_buff_head skb_queue
;
587 struct sk_buff_head skb_queue_unreliable
;
591 * The lock only protects the list, hash, timer and counter
592 * against manipulation, reads are done in RCU. Additionally,
593 * the lock protects each BSS's TIM bitmap.
596 unsigned long num_sta
;
597 struct list_head sta_list
;
598 struct list_head sta_flush_list
;
599 struct work_struct sta_flush_work
;
600 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
601 struct timer_list sta_cleanup
;
603 unsigned long queues_pending
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
604 unsigned long queues_pending_run
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
605 struct ieee80211_tx_stored_packet pending_packet
[IEEE80211_MAX_QUEUES
];
606 struct tasklet_struct tx_pending_tasklet
;
608 /* number of interfaces with corresponding IFF_ flags */
609 atomic_t iff_allmultis
, iff_promiscs
;
611 struct rate_control_ref
*rate_ctrl
;
614 int fragmentation_threshold
;
616 struct crypto_blkcipher
*wep_tx_tfm
;
617 struct crypto_blkcipher
*wep_rx_tfm
;
620 struct list_head interfaces
;
623 * Key lock, protects sdata's key_list and sta_info's
624 * key pointers (write access, they're RCU.)
629 /* Scanning and BSS list */
630 bool sw_scanning
, hw_scanning
;
631 int scan_channel_idx
;
632 enum ieee80211_band scan_band
;
634 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
635 unsigned long last_scan_completed
;
636 struct delayed_work scan_work
;
637 struct ieee80211_sub_if_data
*scan_sdata
;
638 struct ieee80211_channel
*oper_channel
, *scan_channel
, *csa_channel
;
639 enum nl80211_channel_type oper_channel_type
;
640 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
641 size_t scan_ssid_len
;
642 struct list_head bss_list
;
643 struct ieee80211_bss
*bss_hash
[STA_HASH_SIZE
];
647 /* dot11CountersTable */
648 u32 dot11TransmittedFragmentCount
;
649 u32 dot11MulticastTransmittedFrameCount
;
650 u32 dot11FailedCount
;
652 u32 dot11MultipleRetryCount
;
653 u32 dot11FrameDuplicateCount
;
654 u32 dot11ReceivedFragmentCount
;
655 u32 dot11MulticastReceivedFrameCount
;
656 u32 dot11TransmittedFrameCount
;
657 u32 dot11WEPUndecryptableCount
;
659 #ifdef CONFIG_MAC80211_LEDS
660 int tx_led_counter
, rx_led_counter
;
661 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
662 char tx_led_name
[32], rx_led_name
[32],
663 assoc_led_name
[32], radio_led_name
[32];
666 #ifdef CONFIG_MAC80211_DEBUGFS
667 struct work_struct sta_debugfs_add
;
670 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
671 /* TX/RX handler statistics */
672 unsigned int tx_handlers_drop
;
673 unsigned int tx_handlers_queued
;
674 unsigned int tx_handlers_drop_unencrypted
;
675 unsigned int tx_handlers_drop_fragment
;
676 unsigned int tx_handlers_drop_wep
;
677 unsigned int tx_handlers_drop_not_assoc
;
678 unsigned int tx_handlers_drop_unauth_port
;
679 unsigned int rx_handlers_drop
;
680 unsigned int rx_handlers_queued
;
681 unsigned int rx_handlers_drop_nullfunc
;
682 unsigned int rx_handlers_drop_defrag
;
683 unsigned int rx_handlers_drop_short
;
684 unsigned int rx_handlers_drop_passive_scan
;
685 unsigned int tx_expand_skb_head
;
686 unsigned int tx_expand_skb_head_cloned
;
687 unsigned int rx_expand_skb_head
;
688 unsigned int rx_expand_skb_head2
;
689 unsigned int rx_handlers_fragments
;
690 unsigned int tx_status_drop
;
691 #define I802_DEBUG_INC(c) (c)++
692 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
693 #define I802_DEBUG_INC(c) do { } while (0)
694 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
697 int total_ps_buffered
; /* total number of all buffered unicast and
698 * multicast packets for power saving stations
700 int wifi_wme_noack_test
;
701 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
704 int dynamic_ps_timeout
;
705 struct work_struct dynamic_ps_enable_work
;
706 struct work_struct dynamic_ps_disable_work
;
707 struct timer_list dynamic_ps_timer
;
709 #ifdef CONFIG_MAC80211_DEBUGFS
710 struct local_debugfsdentries
{
711 struct dentry
*rcdir
;
712 struct dentry
*rcname
;
713 struct dentry
*frequency
;
714 struct dentry
*rts_threshold
;
715 struct dentry
*fragmentation_threshold
;
716 struct dentry
*short_retry_limit
;
717 struct dentry
*long_retry_limit
;
718 struct dentry
*total_ps_buffered
;
719 struct dentry
*wep_iv
;
720 struct dentry
*statistics
;
721 struct local_debugfsdentries_statsdentries
{
722 struct dentry
*transmitted_fragment_count
;
723 struct dentry
*multicast_transmitted_frame_count
;
724 struct dentry
*failed_count
;
725 struct dentry
*retry_count
;
726 struct dentry
*multiple_retry_count
;
727 struct dentry
*frame_duplicate_count
;
728 struct dentry
*received_fragment_count
;
729 struct dentry
*multicast_received_frame_count
;
730 struct dentry
*transmitted_frame_count
;
731 struct dentry
*wep_undecryptable_count
;
732 struct dentry
*num_scans
;
733 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
734 struct dentry
*tx_handlers_drop
;
735 struct dentry
*tx_handlers_queued
;
736 struct dentry
*tx_handlers_drop_unencrypted
;
737 struct dentry
*tx_handlers_drop_fragment
;
738 struct dentry
*tx_handlers_drop_wep
;
739 struct dentry
*tx_handlers_drop_not_assoc
;
740 struct dentry
*tx_handlers_drop_unauth_port
;
741 struct dentry
*rx_handlers_drop
;
742 struct dentry
*rx_handlers_queued
;
743 struct dentry
*rx_handlers_drop_nullfunc
;
744 struct dentry
*rx_handlers_drop_defrag
;
745 struct dentry
*rx_handlers_drop_short
;
746 struct dentry
*rx_handlers_drop_passive_scan
;
747 struct dentry
*tx_expand_skb_head
;
748 struct dentry
*tx_expand_skb_head_cloned
;
749 struct dentry
*rx_expand_skb_head
;
750 struct dentry
*rx_expand_skb_head2
;
751 struct dentry
*rx_handlers_fragments
;
752 struct dentry
*tx_status_drop
;
754 struct dentry
*dot11ACKFailureCount
;
755 struct dentry
*dot11RTSFailureCount
;
756 struct dentry
*dot11FCSErrorCount
;
757 struct dentry
*dot11RTSSuccessCount
;
759 struct dentry
*stations
;
765 static inline struct ieee80211_sub_if_data
*
766 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
768 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
770 BUG_ON(!local
|| local
->mdev
== dev
);
772 return netdev_priv(dev
);
775 /* this struct represents 802.11n's RA/TID combination */
776 struct ieee80211_ra_tid
{
781 /* Parsed Information Elements */
782 struct ieee802_11_elems
{
786 /* pointers to IEs */
801 struct ieee80211_ht_cap
*ht_cap_elem
;
802 struct ieee80211_ht_info
*ht_info_elem
;
812 u8
*quiet_elem
; /* first quite element */
814 /* length of them, respectively */
826 u8 ext_supp_rates_len
;
835 u8 ch_switch_elem_len
;
837 u8 pwr_constr_elem_len
;
839 u8 num_of_quiet_elem
; /* can be more the one */
842 static inline struct ieee80211_local
*hw_to_local(
843 struct ieee80211_hw
*hw
)
845 return container_of(hw
, struct ieee80211_local
, hw
);
848 static inline struct ieee80211_hw
*local_to_hw(
849 struct ieee80211_local
*local
)
855 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
857 return compare_ether_addr(raddr
, addr
) == 0 ||
858 is_broadcast_ether_addr(raddr
);
862 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
863 int ieee80211_if_config(struct ieee80211_sub_if_data
*sdata
, u32 changed
);
864 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
865 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
867 void ieee80211_configure_filter(struct ieee80211_local
*local
);
869 /* wireless extensions */
870 extern const struct iw_handler_def ieee80211_iw_handler_def
;
873 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
874 void ieee80211_scan_work(struct work_struct
*work
);
875 void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
876 struct ieee80211_rx_status
*rx_status
);
877 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t len
);
878 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t *len
);
879 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data
*sdata
, u8
*bssid
);
880 void ieee80211_sta_req_auth(struct ieee80211_sub_if_data
*sdata
,
881 struct ieee80211_if_sta
*ifsta
);
882 struct sta_info
*ieee80211_ibss_add_sta(struct ieee80211_sub_if_data
*sdata
,
883 u8
*bssid
, u8
*addr
, u64 supp_rates
);
884 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
885 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
886 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
887 u64
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
888 struct ieee802_11_elems
*elems
,
889 enum ieee80211_band band
);
890 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
891 u8
*ssid
, size_t ssid_len
);
893 /* scan/BSS handling */
894 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
895 u8
*ssid
, size_t ssid_len
);
896 int ieee80211_scan_results(struct ieee80211_local
*local
,
897 struct iw_request_info
*info
,
898 char *buf
, size_t len
);
900 ieee80211_scan_rx(struct ieee80211_sub_if_data
*sdata
,
902 struct ieee80211_rx_status
*rx_status
);
903 void ieee80211_rx_bss_list_init(struct ieee80211_local
*local
);
904 void ieee80211_rx_bss_list_deinit(struct ieee80211_local
*local
);
905 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data
*sdata
,
906 char *ie
, size_t len
);
908 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
909 int ieee80211_start_scan(struct ieee80211_sub_if_data
*scan_sdata
,
910 u8
*ssid
, size_t ssid_len
);
911 struct ieee80211_bss
*
912 ieee80211_bss_info_update(struct ieee80211_local
*local
,
913 struct ieee80211_rx_status
*rx_status
,
914 struct ieee80211_mgmt
*mgmt
,
916 struct ieee802_11_elems
*elems
,
917 int freq
, bool beacon
);
918 struct ieee80211_bss
*
919 ieee80211_rx_bss_add(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
920 u8
*ssid
, u8 ssid_len
);
921 struct ieee80211_bss
*
922 ieee80211_rx_bss_get(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
923 u8
*ssid
, u8 ssid_len
);
924 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
925 struct ieee80211_bss
*bss
);
927 /* interface handling */
928 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
929 struct net_device
**new_dev
, enum nl80211_iftype type
,
930 struct vif_params
*params
);
931 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
932 enum nl80211_iftype type
);
933 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
934 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
937 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
938 void ieee80211_tx_pending(unsigned long data
);
939 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
940 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
941 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
944 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band
*sband
,
945 struct ieee80211_ht_cap
*ht_cap_ie
,
946 struct ieee80211_sta_ht_cap
*ht_cap
);
947 u32
ieee80211_enable_ht(struct ieee80211_sub_if_data
*sdata
,
948 struct ieee80211_ht_info
*hti
,
949 u16 ap_ht_cap_flags
);
950 void ieee80211_send_bar(struct ieee80211_sub_if_data
*sdata
, u8
*ra
, u16 tid
, u16 ssn
);
952 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data
*sdata
, u8
*da
,
953 u16 tid
, u16 initiator
, u16 reason
);
954 void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data
*sdata
, u8
*addr
);
955 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
956 struct sta_info
*sta
,
957 struct ieee80211_mgmt
*mgmt
, size_t len
);
958 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
959 struct sta_info
*sta
,
960 struct ieee80211_mgmt
*mgmt
,
962 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
963 struct sta_info
*sta
,
964 struct ieee80211_mgmt
*mgmt
,
967 /* Spectrum management */
968 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
969 struct ieee80211_mgmt
*mgmt
,
971 void ieee80211_chswitch_timer(unsigned long data
);
972 void ieee80211_chswitch_work(struct work_struct
*work
);
973 void ieee80211_process_chanswitch(struct ieee80211_sub_if_data
*sdata
,
974 struct ieee80211_channel_sw_ie
*sw_elem
,
975 struct ieee80211_bss
*bss
);
977 /* utility functions/constants */
978 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
979 extern const unsigned char rfc1042_header
[6];
980 extern const unsigned char bridge_tunnel_header
[6];
981 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
982 enum nl80211_iftype type
);
983 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
984 int rate
, int erp
, int short_preamble
);
985 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
986 struct ieee80211_hdr
*hdr
);
987 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
);
988 void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
990 void ieee802_11_parse_elems(u8
*start
, size_t len
,
991 struct ieee802_11_elems
*elems
);
992 int ieee80211_set_freq(struct ieee80211_sub_if_data
*sdata
, int freq
);
993 u64
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
994 enum ieee80211_band band
);
996 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
997 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
998 void ieee80211_dynamic_ps_timer(unsigned long data
);
999 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1000 struct ieee80211_sub_if_data
*sdata
,
1003 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1004 enum queue_stop_reason reason
);
1005 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1006 enum queue_stop_reason reason
);
1008 #ifdef CONFIG_MAC80211_NOINLINE
1009 #define debug_noinline noinline
1011 #define debug_noinline
1014 #endif /* IEEE80211_I_H */