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/wireless.h>
27 #include <net/iw_handler.h>
28 #include <net/mac80211.h>
32 /* ieee80211.o internal definitions, etc. These are not included into
33 * low-level drivers. */
36 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
37 #endif /* ETH_P_PAE */
39 #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
41 struct ieee80211_local
;
43 /* Maximum number of broadcast/multicast frames to buffer when some of the
44 * associated stations are using power saving. */
45 #define AP_MAX_BC_BUFFER 128
47 /* Maximum number of frames buffered to all STAs, including multicast frames.
48 * Note: increasing this limit increases the potential memory requirement. Each
49 * frame can be up to about 2 kB long. */
50 #define TOTAL_MAX_TX_BUFFER 512
52 /* Required encryption head and tailroom */
53 #define IEEE80211_ENCRYPT_HEADROOM 8
54 #define IEEE80211_ENCRYPT_TAILROOM 12
56 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
57 * reception of at least three fragmented frames. This limit can be increased
58 * by changing this define, at the cost of slower frame reassembly and
59 * increased memory use (about 2 kB of RAM per entry). */
60 #define IEEE80211_FRAGMENT_MAX 4
62 struct ieee80211_fragment_entry
{
63 unsigned long first_frag_time
;
65 unsigned int rx_queue
;
66 unsigned int last_frag
;
67 unsigned int extra_len
;
68 struct sk_buff_head skb_list
;
69 int ccmp
; /* Whether fragments were encrypted with CCMP */
70 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
74 struct ieee80211_sta_bss
{
75 struct list_head list
;
76 struct ieee80211_sta_bss
*hnext
;
82 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
84 u16 capability
; /* host byte order */
85 enum ieee80211_band band
;
87 int signal
, noise
, qual
;
98 #ifdef CONFIG_MAC80211_MESH
103 #define IEEE80211_MAX_SUPP_RATES 32
104 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
105 size_t supp_rates_len
;
110 unsigned long last_update
;
112 /* during assocation, we save an ERP value from a probe response so
113 * that we can feed ERP info to the driver when handling the
114 * association completes. these fields probably won't be up-to-date
115 * otherwise, you probably don't want to use them. */
120 static inline u8
*bss_mesh_cfg(struct ieee80211_sta_bss
*bss
)
122 #ifdef CONFIG_MAC80211_MESH
123 return bss
->mesh_cfg
;
128 static inline u8
*bss_mesh_id(struct ieee80211_sta_bss
*bss
)
130 #ifdef CONFIG_MAC80211_MESH
136 static inline u8
bss_mesh_id_len(struct ieee80211_sta_bss
*bss
)
138 #ifdef CONFIG_MAC80211_MESH
139 return bss
->mesh_id_len
;
145 typedef unsigned __bitwise__ ieee80211_tx_result
;
146 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
147 #define TX_DROP ((__force ieee80211_tx_result) 1u)
148 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
150 #define IEEE80211_TX_FRAGMENTED BIT(0)
151 #define IEEE80211_TX_UNICAST BIT(1)
152 #define IEEE80211_TX_PS_BUFFERED BIT(2)
153 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
155 struct ieee80211_tx_data
{
157 struct net_device
*dev
;
158 struct ieee80211_local
*local
;
159 struct ieee80211_sub_if_data
*sdata
;
160 struct sta_info
*sta
;
161 struct ieee80211_key
*key
;
163 struct ieee80211_channel
*channel
;
165 /* use this rate (if set) for last fragment; rate can
166 * be set to lower rate for the first fragments, e.g.,
167 * when using CTS protection with IEEE 802.11g. */
168 s8 last_frag_rate_idx
;
170 /* Extra fragments (in addition to the first fragment
172 struct sk_buff
**extra_frag
;
180 typedef unsigned __bitwise__ ieee80211_rx_result
;
181 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
182 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
183 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
184 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
186 #define IEEE80211_RX_IN_SCAN BIT(0)
187 /* frame is destined to interface currently processed (incl. multicast frames) */
188 #define IEEE80211_RX_RA_MATCH BIT(1)
189 #define IEEE80211_RX_AMSDU BIT(2)
190 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
191 #define IEEE80211_RX_FRAGMENTED BIT(4)
193 struct ieee80211_rx_data
{
195 struct net_device
*dev
;
196 struct ieee80211_local
*local
;
197 struct ieee80211_sub_if_data
*sdata
;
198 struct sta_info
*sta
;
199 struct ieee80211_key
*key
;
200 struct ieee80211_rx_status
*status
;
201 struct ieee80211_rate
*rate
;
205 int sent_ps_buffered
;
211 struct ieee80211_tx_stored_packet
{
213 struct sk_buff
**extra_frag
;
214 s8 last_frag_rate_idx
;
216 bool last_frag_rate_ctrl_probe
;
221 int head_len
, tail_len
;
225 struct ieee80211_if_ap
{
226 struct beacon_data
*beacon
;
228 struct list_head vlans
;
230 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
233 /* yes, this looks ugly, but guarantees that we can later use
235 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
236 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
237 struct sk_buff_head ps_bc_buf
;
238 atomic_t num_sta_ps
; /* number of stations in PS mode */
240 int num_beacons
; /* number of TXed beacon frames for this BSS */
243 struct ieee80211_if_wds
{
244 struct sta_info
*sta
;
245 u8 remote_addr
[ETH_ALEN
];
248 struct ieee80211_if_vlan
{
249 struct list_head list
;
253 __u32 fwded_frames
; /* Mesh forwarded frames */
254 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
255 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
256 atomic_t estab_plinks
;
259 #define PREQ_Q_F_START 0x1
260 #define PREQ_Q_F_REFRESH 0x2
261 struct mesh_preq_queue
{
262 struct list_head list
;
269 /* Mesh plink management parameters */
270 u16 dot11MeshRetryTimeout
;
271 u16 dot11MeshConfirmTimeout
;
272 u16 dot11MeshHoldingTimeout
;
273 u16 dot11MeshMaxPeerLinks
;
274 u8 dot11MeshMaxRetries
;
276 bool auto_open_plinks
;
277 /* HWMP parameters */
278 u8 dot11MeshHWMPmaxPREQretries
;
279 u32 path_refresh_time
;
280 u16 min_discovery_timeout
;
281 u32 dot11MeshHWMPactivePathTimeout
;
282 u16 dot11MeshHWMPpreqMinInterval
;
283 u16 dot11MeshHWMPnetDiameterTraversalTime
;
287 /* flags used in struct ieee80211_if_sta.flags */
288 #define IEEE80211_STA_SSID_SET BIT(0)
289 #define IEEE80211_STA_BSSID_SET BIT(1)
290 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
291 #define IEEE80211_STA_AUTHENTICATED BIT(3)
292 #define IEEE80211_STA_ASSOCIATED BIT(4)
293 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
294 #define IEEE80211_STA_CREATE_IBSS BIT(6)
295 #define IEEE80211_STA_MIXED_CELL BIT(7)
296 #define IEEE80211_STA_WMM_ENABLED BIT(8)
297 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
298 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
299 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
300 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
301 struct ieee80211_if_sta
{
302 struct timer_list timer
;
303 struct work_struct work
;
304 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
305 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
307 IEEE80211_DISABLED
, IEEE80211_AUTHENTICATE
,
308 IEEE80211_ASSOCIATE
, IEEE80211_ASSOCIATED
,
309 IEEE80211_IBSS_SEARCH
, IEEE80211_IBSS_JOINED
,
313 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
314 size_t scan_ssid_len
;
315 #ifdef CONFIG_MAC80211_MESH
316 struct timer_list mesh_path_timer
;
317 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
319 /* Active Path Selection Protocol Identifier */
321 /* Active Path Selection Metric Identifier */
323 /* Congestion Control Mode Identifier */
325 /* Local mesh Destination Sequence Number */
327 /* Last used PREQ ID */
330 /* Timestamp of last DSN update */
331 unsigned long last_dsn_update
;
332 /* Timestamp of last DSN sent */
333 unsigned long last_preq
;
334 struct mesh_rmc
*rmc
;
335 spinlock_t mesh_preq_queue_lock
;
336 struct mesh_preq_queue preq_queue
;
338 struct mesh_stats mshstats
;
339 struct mesh_config mshcfg
;
341 bool accepting_plinks
;
345 u8
*extra_ie
; /* to be added to the end of AssocReq */
348 /* The last AssocReq/Resp IEs */
349 u8
*assocreq_ies
, *assocresp_ies
;
350 size_t assocreq_ies_len
, assocresp_ies_len
;
352 struct sk_buff_head skb_queue
;
354 int auth_tries
, assoc_tries
;
356 unsigned long request
;
358 unsigned long last_probe
;
361 #define IEEE80211_STA_REQ_SCAN 0
362 #define IEEE80211_STA_REQ_AUTH 1
363 #define IEEE80211_STA_REQ_RUN 2
365 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
366 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
367 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
368 unsigned int auth_algs
; /* bitfield of allowed auth algs */
369 int auth_alg
; /* currently used IEEE 802.11 authentication algorithm */
370 int auth_transaction
;
372 unsigned long ibss_join_req
;
373 struct sk_buff
*probe_resp
; /* ProbeResp template for IBSS */
374 u32 supp_rates_bits
[IEEE80211_NUM_BANDS
];
376 int wmm_last_param_set
;
377 int num_beacons
; /* number of TXed beacon frames by this STA */
380 static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta
*ifsta
,
381 u8 mesh_id_len
, u8
*mesh_id
)
383 #ifdef CONFIG_MAC80211_MESH
384 ifsta
->mesh_id_len
= mesh_id_len
;
385 memcpy(ifsta
->mesh_id
, mesh_id
, mesh_id_len
);
389 #ifdef CONFIG_MAC80211_MESH
390 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
391 do { (sta)->mshstats.name++; } while (0)
393 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
397 /* flags used in struct ieee80211_sub_if_data.flags */
398 #define IEEE80211_SDATA_ALLMULTI BIT(0)
399 #define IEEE80211_SDATA_PROMISC BIT(1)
400 #define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
401 #define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
402 struct ieee80211_sub_if_data
{
403 struct list_head list
;
405 struct wireless_dev wdev
;
408 struct list_head key_list
;
410 struct net_device
*dev
;
411 struct ieee80211_local
*local
;
415 int drop_unencrypted
;
418 * basic rates of this AP or the AP we're associated to
422 /* Fragment table for host-based reassembly */
423 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
424 unsigned int fragment_next
;
426 #define NUM_DEFAULT_KEYS 4
427 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
];
428 struct ieee80211_key
*default_key
;
430 /* BSS configuration for this interface. */
431 struct ieee80211_bss_conf bss_conf
;
434 * AP this belongs to: self in AP mode and
435 * corresponding AP in VLAN mode, NULL for
436 * all others (might be needed later in IBSS)
438 struct ieee80211_if_ap
*bss
;
440 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
441 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
444 struct ieee80211_if_ap ap
;
445 struct ieee80211_if_wds wds
;
446 struct ieee80211_if_vlan vlan
;
447 struct ieee80211_if_sta sta
;
451 #ifdef CONFIG_MAC80211_DEBUGFS
452 struct dentry
*debugfsdir
;
455 struct dentry
*drop_unencrypted
;
456 struct dentry
*state
;
457 struct dentry
*bssid
;
458 struct dentry
*prev_bssid
;
459 struct dentry
*ssid_len
;
461 struct dentry
*ap_capab
;
462 struct dentry
*capab
;
463 struct dentry
*extra_ie_len
;
464 struct dentry
*auth_tries
;
465 struct dentry
*assoc_tries
;
466 struct dentry
*auth_algs
;
467 struct dentry
*auth_alg
;
468 struct dentry
*auth_transaction
;
469 struct dentry
*flags
;
470 struct dentry
*num_beacons_sta
;
473 struct dentry
*drop_unencrypted
;
474 struct dentry
*num_sta_ps
;
475 struct dentry
*dtim_count
;
476 struct dentry
*num_beacons
;
477 struct dentry
*force_unicast_rateidx
;
478 struct dentry
*max_ratectrl_rateidx
;
479 struct dentry
*num_buffered_multicast
;
482 struct dentry
*drop_unencrypted
;
486 struct dentry
*drop_unencrypted
;
491 struct dentry
*default_key
;
494 #ifdef CONFIG_MAC80211_MESH
495 struct dentry
*mesh_stats_dir
;
497 struct dentry
*fwded_frames
;
498 struct dentry
*dropped_frames_ttl
;
499 struct dentry
*dropped_frames_no_route
;
500 struct dentry
*estab_plinks
;
501 struct timer_list mesh_path_timer
;
504 struct dentry
*mesh_config_dir
;
506 struct dentry
*dot11MeshRetryTimeout
;
507 struct dentry
*dot11MeshConfirmTimeout
;
508 struct dentry
*dot11MeshHoldingTimeout
;
509 struct dentry
*dot11MeshMaxRetries
;
510 struct dentry
*dot11MeshTTL
;
511 struct dentry
*auto_open_plinks
;
512 struct dentry
*dot11MeshMaxPeerLinks
;
513 struct dentry
*dot11MeshHWMPactivePathTimeout
;
514 struct dentry
*dot11MeshHWMPpreqMinInterval
;
515 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
516 struct dentry
*dot11MeshHWMPmaxPREQretries
;
517 struct dentry
*path_refresh_time
;
518 struct dentry
*min_discovery_timeout
;
523 /* must be last, dynamically sized area in this! */
524 struct ieee80211_vif vif
;
528 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
530 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
534 IEEE80211_RX_MSG
= 1,
535 IEEE80211_TX_STATUS_MSG
= 2,
536 IEEE80211_DELBA_MSG
= 3,
537 IEEE80211_ADDBA_MSG
= 4,
540 /* maximum number of hardware queues we support. */
541 #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
543 struct ieee80211_local
{
544 /* embed the driver visible part.
545 * don't cast (use the static inlines below), but we keep
546 * it first anyway so they become a no-op */
547 struct ieee80211_hw hw
;
549 const struct ieee80211_ops
*ops
;
551 unsigned long queue_pool
[BITS_TO_LONGS(QD_MAX_QUEUES
)];
553 struct net_device
*mdev
; /* wmaster# - "master" 802.11 device */
555 int monitors
, cooked_mntrs
;
556 /* number of interfaces with corresponding FIF_ flags */
557 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
;
558 unsigned int filter_flags
; /* FIF_* */
559 struct iw_statistics wstats
;
561 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
562 int tx_headroom
; /* required headroom for hardware/radiotap */
564 /* Tasklet and skb queue to process calls from IRQ mode. All frames
565 * added to skb_queue will be processed, but frames in
566 * skb_queue_unreliable may be dropped if the total length of these
567 * queues increases over the limit. */
568 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
569 struct tasklet_struct tasklet
;
570 struct sk_buff_head skb_queue
;
571 struct sk_buff_head skb_queue_unreliable
;
575 * The lock only protects the list, hash, timer and counter
576 * against manipulation, reads are done in RCU. Additionally,
577 * the lock protects each BSS's TIM bitmap.
580 unsigned long num_sta
;
581 struct list_head sta_list
;
582 struct list_head sta_flush_list
;
583 struct work_struct sta_flush_work
;
584 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
585 struct timer_list sta_cleanup
;
587 unsigned long queues_pending
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
588 unsigned long queues_pending_run
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
589 struct ieee80211_tx_stored_packet pending_packet
[IEEE80211_MAX_QUEUES
];
590 struct tasklet_struct tx_pending_tasklet
;
592 /* number of interfaces with corresponding IFF_ flags */
593 atomic_t iff_allmultis
, iff_promiscs
;
595 struct rate_control_ref
*rate_ctrl
;
598 int fragmentation_threshold
;
599 int short_retry_limit
; /* dot11ShortRetryLimit */
600 int long_retry_limit
; /* dot11LongRetryLimit */
602 struct crypto_blkcipher
*wep_tx_tfm
;
603 struct crypto_blkcipher
*wep_rx_tfm
;
606 int bridge_packets
; /* bridge packets between associated stations and
607 * deliver multicast frames both back to wireless
608 * media and to the local net stack */
610 struct list_head interfaces
;
613 * Key lock, protects sdata's key_list and sta_info's
614 * key pointers (write access, they're RCU.)
619 bool sta_sw_scanning
;
620 bool sta_hw_scanning
;
621 int scan_channel_idx
;
622 enum ieee80211_band scan_band
;
624 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
625 unsigned long last_scan_completed
;
626 struct delayed_work scan_work
;
627 struct net_device
*scan_dev
;
628 struct ieee80211_channel
*oper_channel
, *scan_channel
;
629 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
630 size_t scan_ssid_len
;
631 struct list_head sta_bss_list
;
632 struct ieee80211_sta_bss
*sta_bss_hash
[STA_HASH_SIZE
];
633 spinlock_t sta_bss_lock
;
636 /* dot11CountersTable */
637 u32 dot11TransmittedFragmentCount
;
638 u32 dot11MulticastTransmittedFrameCount
;
639 u32 dot11FailedCount
;
641 u32 dot11MultipleRetryCount
;
642 u32 dot11FrameDuplicateCount
;
643 u32 dot11ReceivedFragmentCount
;
644 u32 dot11MulticastReceivedFrameCount
;
645 u32 dot11TransmittedFrameCount
;
646 u32 dot11WEPUndecryptableCount
;
648 #ifdef CONFIG_MAC80211_LEDS
649 int tx_led_counter
, rx_led_counter
;
650 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
651 char tx_led_name
[32], rx_led_name
[32],
652 assoc_led_name
[32], radio_led_name
[32];
655 #ifdef CONFIG_MAC80211_DEBUGFS
656 struct work_struct sta_debugfs_add
;
659 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
660 /* TX/RX handler statistics */
661 unsigned int tx_handlers_drop
;
662 unsigned int tx_handlers_queued
;
663 unsigned int tx_handlers_drop_unencrypted
;
664 unsigned int tx_handlers_drop_fragment
;
665 unsigned int tx_handlers_drop_wep
;
666 unsigned int tx_handlers_drop_not_assoc
;
667 unsigned int tx_handlers_drop_unauth_port
;
668 unsigned int rx_handlers_drop
;
669 unsigned int rx_handlers_queued
;
670 unsigned int rx_handlers_drop_nullfunc
;
671 unsigned int rx_handlers_drop_defrag
;
672 unsigned int rx_handlers_drop_short
;
673 unsigned int rx_handlers_drop_passive_scan
;
674 unsigned int tx_expand_skb_head
;
675 unsigned int tx_expand_skb_head_cloned
;
676 unsigned int rx_expand_skb_head
;
677 unsigned int rx_expand_skb_head2
;
678 unsigned int rx_handlers_fragments
;
679 unsigned int tx_status_drop
;
680 #define I802_DEBUG_INC(c) (c)++
681 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
682 #define I802_DEBUG_INC(c) do { } while (0)
683 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
686 int total_ps_buffered
; /* total number of all buffered unicast and
687 * multicast packets for power saving stations
689 int wifi_wme_noack_test
;
690 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
692 #ifdef CONFIG_MAC80211_DEBUGFS
693 struct local_debugfsdentries
{
694 struct dentry
*frequency
;
695 struct dentry
*antenna_sel_tx
;
696 struct dentry
*antenna_sel_rx
;
697 struct dentry
*bridge_packets
;
698 struct dentry
*rts_threshold
;
699 struct dentry
*fragmentation_threshold
;
700 struct dentry
*short_retry_limit
;
701 struct dentry
*long_retry_limit
;
702 struct dentry
*total_ps_buffered
;
703 struct dentry
*wep_iv
;
704 struct dentry
*statistics
;
705 struct local_debugfsdentries_statsdentries
{
706 struct dentry
*transmitted_fragment_count
;
707 struct dentry
*multicast_transmitted_frame_count
;
708 struct dentry
*failed_count
;
709 struct dentry
*retry_count
;
710 struct dentry
*multiple_retry_count
;
711 struct dentry
*frame_duplicate_count
;
712 struct dentry
*received_fragment_count
;
713 struct dentry
*multicast_received_frame_count
;
714 struct dentry
*transmitted_frame_count
;
715 struct dentry
*wep_undecryptable_count
;
716 struct dentry
*num_scans
;
717 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
718 struct dentry
*tx_handlers_drop
;
719 struct dentry
*tx_handlers_queued
;
720 struct dentry
*tx_handlers_drop_unencrypted
;
721 struct dentry
*tx_handlers_drop_fragment
;
722 struct dentry
*tx_handlers_drop_wep
;
723 struct dentry
*tx_handlers_drop_not_assoc
;
724 struct dentry
*tx_handlers_drop_unauth_port
;
725 struct dentry
*rx_handlers_drop
;
726 struct dentry
*rx_handlers_queued
;
727 struct dentry
*rx_handlers_drop_nullfunc
;
728 struct dentry
*rx_handlers_drop_defrag
;
729 struct dentry
*rx_handlers_drop_short
;
730 struct dentry
*rx_handlers_drop_passive_scan
;
731 struct dentry
*tx_expand_skb_head
;
732 struct dentry
*tx_expand_skb_head_cloned
;
733 struct dentry
*rx_expand_skb_head
;
734 struct dentry
*rx_expand_skb_head2
;
735 struct dentry
*rx_handlers_fragments
;
736 struct dentry
*tx_status_drop
;
738 struct dentry
*dot11ACKFailureCount
;
739 struct dentry
*dot11RTSFailureCount
;
740 struct dentry
*dot11FCSErrorCount
;
741 struct dentry
*dot11RTSSuccessCount
;
743 struct dentry
*stations
;
749 static inline struct ieee80211_sub_if_data
*
750 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
752 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
754 BUG_ON(!local
|| local
->mdev
== dev
);
756 return netdev_priv(dev
);
759 /* this struct represents 802.11n's RA/TID combination */
760 struct ieee80211_ra_tid
{
765 /* Parsed Information Elements */
766 struct ieee802_11_elems
{
767 /* pointers to IEs */
793 u8
*quiet_elem
; /* first quite element */
795 /* length of them, respectively */
807 u8 ext_supp_rates_len
;
818 u8 ch_switch_elem_len
;
820 u8 pwr_constr_elem_len
;
822 u8 num_of_quiet_elem
; /* can be more the one */
825 static inline struct ieee80211_local
*hw_to_local(
826 struct ieee80211_hw
*hw
)
828 return container_of(hw
, struct ieee80211_local
, hw
);
831 static inline struct ieee80211_hw
*local_to_hw(
832 struct ieee80211_local
*local
)
837 struct sta_attribute
{
838 struct attribute attr
;
839 ssize_t (*show
)(const struct sta_info
*, char *buf
);
840 ssize_t (*store
)(struct sta_info
*, const char *buf
, size_t count
);
843 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
845 return compare_ether_addr(raddr
, addr
) == 0 ||
846 is_broadcast_ether_addr(raddr
);
851 int ieee80211_hw_config(struct ieee80211_local
*local
);
852 int ieee80211_if_config(struct ieee80211_sub_if_data
*sdata
, u32 changed
);
853 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
854 u32
ieee80211_handle_ht(struct ieee80211_local
*local
, int enable_ht
,
855 struct ieee80211_ht_info
*req_ht_cap
,
856 struct ieee80211_ht_bss_info
*req_bss_cap
);
858 /* ieee80211_ioctl.c */
859 extern const struct iw_handler_def ieee80211_iw_handler_def
;
860 int ieee80211_set_freq(struct net_device
*dev
, int freq
);
862 /* ieee80211_sta.c */
863 void ieee80211_sta_timer(unsigned long data
);
864 void ieee80211_sta_work(struct work_struct
*work
);
865 void ieee80211_sta_scan_work(struct work_struct
*work
);
866 void ieee80211_sta_rx_mgmt(struct net_device
*dev
, struct sk_buff
*skb
,
867 struct ieee80211_rx_status
*rx_status
);
868 int ieee80211_sta_set_ssid(struct net_device
*dev
, char *ssid
, size_t len
);
869 int ieee80211_sta_get_ssid(struct net_device
*dev
, char *ssid
, size_t *len
);
870 int ieee80211_sta_set_bssid(struct net_device
*dev
, u8
*bssid
);
871 int ieee80211_sta_req_scan(struct net_device
*dev
, u8
*ssid
, size_t ssid_len
);
872 void ieee80211_sta_req_auth(struct net_device
*dev
,
873 struct ieee80211_if_sta
*ifsta
);
874 int ieee80211_sta_scan_results(struct net_device
*dev
,
875 struct iw_request_info
*info
,
876 char *buf
, size_t len
);
877 ieee80211_rx_result
ieee80211_sta_rx_scan(
878 struct net_device
*dev
, struct sk_buff
*skb
,
879 struct ieee80211_rx_status
*rx_status
);
880 void ieee80211_rx_bss_list_init(struct ieee80211_local
*local
);
881 void ieee80211_rx_bss_list_deinit(struct ieee80211_local
*local
);
882 int ieee80211_sta_set_extra_ie(struct net_device
*dev
, char *ie
, size_t len
);
883 struct sta_info
*ieee80211_ibss_add_sta(struct net_device
*dev
,
884 struct sk_buff
*skb
, u8
*bssid
,
885 u8
*addr
, u64 supp_rates
);
886 int ieee80211_sta_deauthenticate(struct net_device
*dev
, u16 reason
);
887 int ieee80211_sta_disassociate(struct net_device
*dev
, u16 reason
);
888 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
890 u32
ieee80211_reset_erp_info(struct net_device
*dev
);
891 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap
*ht_cap_ie
,
892 struct ieee80211_ht_info
*ht_info
);
893 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
894 struct ieee80211_ht_addt_info
*ht_add_info_ie
,
895 struct ieee80211_ht_bss_info
*bss_info
);
896 void ieee80211_send_addba_request(struct net_device
*dev
, const u8
*da
,
897 u16 tid
, u8 dialog_token
, u16 start_seq_num
,
898 u16 agg_size
, u16 timeout
);
899 void ieee80211_send_delba(struct net_device
*dev
, const u8
*da
, u16 tid
,
900 u16 initiator
, u16 reason_code
);
901 void ieee80211_send_bar(struct net_device
*dev
, u8
*ra
, u16 tid
, u16 ssn
);
903 void ieee80211_sta_stop_rx_ba_session(struct net_device
*dev
, u8
*da
,
904 u16 tid
, u16 initiator
, u16 reason
);
905 void sta_addba_resp_timer_expired(unsigned long data
);
906 void ieee80211_sta_tear_down_BA_sessions(struct net_device
*dev
, u8
*addr
);
907 u64
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
908 struct ieee802_11_elems
*elems
,
909 enum ieee80211_band band
);
910 void ieee80211_sta_tx(struct net_device
*dev
, struct sk_buff
*skb
,
912 void ieee802_11_parse_elems(u8
*start
, size_t len
,
913 struct ieee802_11_elems
*elems
);
915 #ifdef CONFIG_MAC80211_MESH
916 void ieee80211_start_mesh(struct net_device
*dev
);
918 static inline void ieee80211_start_mesh(struct net_device
*dev
)
922 /* interface handling */
923 void ieee80211_if_setup(struct net_device
*dev
);
924 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
925 struct net_device
**new_dev
, enum ieee80211_if_types type
,
926 struct vif_params
*params
);
927 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
928 enum ieee80211_if_types type
);
929 void ieee80211_if_remove(struct net_device
*dev
);
930 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
933 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
934 void ieee80211_tx_pending(unsigned long data
);
935 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
936 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
937 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
939 /* utility functions/constants */
940 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
941 extern const unsigned char rfc1042_header
[6];
942 extern const unsigned char bridge_tunnel_header
[6];
943 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
944 enum ieee80211_if_types type
);
945 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
946 int rate
, int erp
, int short_preamble
);
947 void mac80211_ev_michael_mic_failure(struct net_device
*dev
, int keyidx
,
948 struct ieee80211_hdr
*hdr
);
950 #ifdef CONFIG_MAC80211_NOINLINE
951 #define debug_noinline noinline
953 #define debug_noinline
956 #endif /* IEEE80211_I_H */