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 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 12
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 struct ieee80211_fragment_entry
{
60 unsigned long first_frag_time
;
62 unsigned int rx_queue
;
63 unsigned int last_frag
;
64 unsigned int extra_len
;
65 struct sk_buff_head skb_list
;
66 int ccmp
; /* Whether fragments were encrypted with CCMP */
67 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
71 struct ieee80211_bss
{
72 struct list_head list
;
73 struct ieee80211_bss
*hnext
;
79 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
81 u16 capability
; /* host byte order */
82 enum ieee80211_band band
;
84 int signal
, noise
, qual
;
85 u8
*ies
; /* all information elements from the last Beacon or Probe
86 * Response frames; note Beacon frame is not allowed to
87 * override values from Probe Response */
90 #ifdef CONFIG_MAC80211_MESH
95 #define IEEE80211_MAX_SUPP_RATES 32
96 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
97 size_t supp_rates_len
;
101 unsigned long last_probe_resp
;
102 unsigned long last_update
;
104 /* during assocation, we save an ERP value from a probe response so
105 * that we can feed ERP info to the driver when handling the
106 * association completes. these fields probably won't be up-to-date
107 * otherwise, you probably don't want to use them. */
112 static inline u8
*bss_mesh_cfg(struct ieee80211_bss
*bss
)
114 #ifdef CONFIG_MAC80211_MESH
115 return bss
->mesh_cfg
;
120 static inline u8
*bss_mesh_id(struct ieee80211_bss
*bss
)
122 #ifdef CONFIG_MAC80211_MESH
128 static inline u8
bss_mesh_id_len(struct ieee80211_bss
*bss
)
130 #ifdef CONFIG_MAC80211_MESH
131 return bss
->mesh_id_len
;
137 typedef unsigned __bitwise__ ieee80211_tx_result
;
138 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
139 #define TX_DROP ((__force ieee80211_tx_result) 1u)
140 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
142 #define IEEE80211_TX_FRAGMENTED BIT(0)
143 #define IEEE80211_TX_UNICAST BIT(1)
144 #define IEEE80211_TX_PS_BUFFERED BIT(2)
145 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
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 /* use this rate (if set) for last fragment; rate can
158 * be set to lower rate for the first fragments, e.g.,
159 * when using CTS protection with IEEE 802.11g. */
160 s8 last_frag_rate_idx
;
162 /* Extra fragments (in addition to the first fragment
164 struct sk_buff
**extra_frag
;
172 typedef unsigned __bitwise__ ieee80211_rx_result
;
173 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
174 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
175 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
176 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
178 #define IEEE80211_RX_IN_SCAN BIT(0)
179 /* frame is destined to interface currently processed (incl. multicast frames) */
180 #define IEEE80211_RX_RA_MATCH BIT(1)
181 #define IEEE80211_RX_AMSDU BIT(2)
182 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
183 #define IEEE80211_RX_FRAGMENTED BIT(4)
185 struct ieee80211_rx_data
{
187 struct net_device
*dev
;
188 struct ieee80211_local
*local
;
189 struct ieee80211_sub_if_data
*sdata
;
190 struct sta_info
*sta
;
191 struct ieee80211_key
*key
;
192 struct ieee80211_rx_status
*status
;
193 struct ieee80211_rate
*rate
;
197 int sent_ps_buffered
;
203 struct ieee80211_tx_stored_packet
{
205 struct sk_buff
**extra_frag
;
206 s8 last_frag_rate_idx
;
208 bool last_frag_rate_ctrl_probe
;
213 int head_len
, tail_len
;
217 struct ieee80211_if_ap
{
218 struct beacon_data
*beacon
;
220 struct list_head vlans
;
222 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
225 /* yes, this looks ugly, but guarantees that we can later use
227 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
228 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
229 struct sk_buff_head ps_bc_buf
;
230 atomic_t num_sta_ps
; /* number of stations in PS mode */
232 int num_beacons
; /* number of TXed beacon frames for this BSS */
235 struct ieee80211_if_wds
{
236 struct sta_info
*sta
;
237 u8 remote_addr
[ETH_ALEN
];
240 struct ieee80211_if_vlan
{
241 struct list_head list
;
245 __u32 fwded_frames
; /* Mesh forwarded frames */
246 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
247 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
248 atomic_t estab_plinks
;
251 #define PREQ_Q_F_START 0x1
252 #define PREQ_Q_F_REFRESH 0x2
253 struct mesh_preq_queue
{
254 struct list_head list
;
261 /* Mesh plink management parameters */
262 u16 dot11MeshRetryTimeout
;
263 u16 dot11MeshConfirmTimeout
;
264 u16 dot11MeshHoldingTimeout
;
265 u16 dot11MeshMaxPeerLinks
;
266 u8 dot11MeshMaxRetries
;
268 bool auto_open_plinks
;
269 /* HWMP parameters */
270 u8 dot11MeshHWMPmaxPREQretries
;
271 u32 path_refresh_time
;
272 u16 min_discovery_timeout
;
273 u32 dot11MeshHWMPactivePathTimeout
;
274 u16 dot11MeshHWMPpreqMinInterval
;
275 u16 dot11MeshHWMPnetDiameterTraversalTime
;
279 /* flags used in struct ieee80211_if_sta.flags */
280 #define IEEE80211_STA_SSID_SET BIT(0)
281 #define IEEE80211_STA_BSSID_SET BIT(1)
282 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
283 #define IEEE80211_STA_AUTHENTICATED BIT(3)
284 #define IEEE80211_STA_ASSOCIATED BIT(4)
285 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
286 #define IEEE80211_STA_CREATE_IBSS BIT(6)
287 #define IEEE80211_STA_MIXED_CELL BIT(7)
288 #define IEEE80211_STA_WMM_ENABLED BIT(8)
289 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
290 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
291 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
292 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
293 /* flags for MLME request */
294 #define IEEE80211_STA_REQ_SCAN 0
295 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
296 #define IEEE80211_STA_REQ_AUTH 2
297 #define IEEE80211_STA_REQ_RUN 3
299 /* STA/IBSS MLME states */
300 enum ieee80211_sta_mlme_state
{
301 IEEE80211_STA_MLME_DISABLED
,
302 IEEE80211_STA_MLME_DIRECT_PROBE
,
303 IEEE80211_STA_MLME_AUTHENTICATE
,
304 IEEE80211_STA_MLME_ASSOCIATE
,
305 IEEE80211_STA_MLME_ASSOCIATED
,
306 IEEE80211_STA_MLME_IBSS_SEARCH
,
307 IEEE80211_STA_MLME_IBSS_JOINED
,
310 /* bitfield of allowed auth algs */
311 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
312 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
313 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
315 struct ieee80211_if_sta
{
316 struct timer_list timer
;
317 struct work_struct work
;
318 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
319 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
320 enum ieee80211_sta_mlme_state state
;
322 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
323 size_t scan_ssid_len
;
326 u8
*extra_ie
; /* to be added to the end of AssocReq */
329 /* The last AssocReq/Resp IEs */
330 u8
*assocreq_ies
, *assocresp_ies
;
331 size_t assocreq_ies_len
, assocresp_ies_len
;
333 struct sk_buff_head skb_queue
;
335 int assoc_scan_tries
; /* number of scans done pre-association */
336 int direct_probe_tries
; /* retries for direct probes */
337 int auth_tries
; /* retries for auth req */
338 int assoc_tries
; /* retries for assoc req */
340 unsigned long request
;
342 unsigned long last_probe
;
346 unsigned int auth_algs
; /* bitfield of allowed auth algs */
347 int auth_alg
; /* currently used IEEE 802.11 authentication algorithm */
348 int auth_transaction
;
350 unsigned long ibss_join_req
;
351 struct sk_buff
*probe_resp
; /* ProbeResp template for IBSS */
352 u32 supp_rates_bits
[IEEE80211_NUM_BANDS
];
354 int wmm_last_param_set
;
355 int num_beacons
; /* number of TXed beacon frames by this STA */
358 struct ieee80211_if_mesh
{
359 struct work_struct work
;
360 struct timer_list housekeeping_timer
;
361 struct timer_list mesh_path_timer
;
362 struct sk_buff_head skb_queue
;
366 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
368 /* Active Path Selection Protocol Identifier */
370 /* Active Path Selection Metric Identifier */
372 /* Congestion Control Mode Identifier */
374 /* Local mesh Destination Sequence Number */
376 /* Last used PREQ ID */
379 /* Timestamp of last DSN update */
380 unsigned long last_dsn_update
;
381 /* Timestamp of last DSN sent */
382 unsigned long last_preq
;
383 struct mesh_rmc
*rmc
;
384 spinlock_t mesh_preq_queue_lock
;
385 struct mesh_preq_queue preq_queue
;
387 struct mesh_stats mshstats
;
388 struct mesh_config mshcfg
;
390 bool accepting_plinks
;
394 #ifdef CONFIG_MAC80211_MESH
395 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
396 do { (msh)->mshstats.name++; } while (0)
398 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
403 * enum ieee80211_sub_if_data_flags - virtual interface flags
405 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
406 * @IEEE80211_SDATA_PROMISC: interface is promisc
407 * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
408 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
409 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
410 * associated stations and deliver multicast frames both
411 * back to wireless media and to the local net stack.
413 enum ieee80211_sub_if_data_flags
{
414 IEEE80211_SDATA_ALLMULTI
= BIT(0),
415 IEEE80211_SDATA_PROMISC
= BIT(1),
416 IEEE80211_SDATA_USERSPACE_MLME
= BIT(2),
417 IEEE80211_SDATA_OPERATING_GMODE
= BIT(3),
418 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(4),
421 struct ieee80211_sub_if_data
{
422 struct list_head list
;
424 struct wireless_dev wdev
;
427 struct list_head key_list
;
429 struct net_device
*dev
;
430 struct ieee80211_local
*local
;
434 int drop_unencrypted
;
436 /* Fragment table for host-based reassembly */
437 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
438 unsigned int fragment_next
;
440 #define NUM_DEFAULT_KEYS 4
441 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
];
442 struct ieee80211_key
*default_key
;
444 /* BSS configuration for this interface. */
445 struct ieee80211_bss_conf bss_conf
;
448 * AP this belongs to: self in AP mode and
449 * corresponding AP in VLAN mode, NULL for
450 * all others (might be needed later in IBSS)
452 struct ieee80211_if_ap
*bss
;
454 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
455 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
458 struct ieee80211_if_ap ap
;
459 struct ieee80211_if_wds wds
;
460 struct ieee80211_if_vlan vlan
;
461 struct ieee80211_if_sta sta
;
462 #ifdef CONFIG_MAC80211_MESH
463 struct ieee80211_if_mesh mesh
;
468 #ifdef CONFIG_MAC80211_DEBUGFS
469 struct dentry
*debugfsdir
;
472 struct dentry
*drop_unencrypted
;
473 struct dentry
*state
;
474 struct dentry
*bssid
;
475 struct dentry
*prev_bssid
;
476 struct dentry
*ssid_len
;
478 struct dentry
*ap_capab
;
479 struct dentry
*capab
;
480 struct dentry
*extra_ie_len
;
481 struct dentry
*auth_tries
;
482 struct dentry
*assoc_tries
;
483 struct dentry
*auth_algs
;
484 struct dentry
*auth_alg
;
485 struct dentry
*auth_transaction
;
486 struct dentry
*flags
;
487 struct dentry
*num_beacons_sta
;
488 struct dentry
*force_unicast_rateidx
;
489 struct dentry
*max_ratectrl_rateidx
;
492 struct dentry
*drop_unencrypted
;
493 struct dentry
*num_sta_ps
;
494 struct dentry
*dtim_count
;
495 struct dentry
*num_beacons
;
496 struct dentry
*force_unicast_rateidx
;
497 struct dentry
*max_ratectrl_rateidx
;
498 struct dentry
*num_buffered_multicast
;
501 struct dentry
*drop_unencrypted
;
503 struct dentry
*force_unicast_rateidx
;
504 struct dentry
*max_ratectrl_rateidx
;
507 struct dentry
*drop_unencrypted
;
508 struct dentry
*force_unicast_rateidx
;
509 struct dentry
*max_ratectrl_rateidx
;
516 struct dentry
*default_key
;
519 #ifdef CONFIG_MAC80211_MESH
520 struct dentry
*mesh_stats_dir
;
522 struct dentry
*fwded_frames
;
523 struct dentry
*dropped_frames_ttl
;
524 struct dentry
*dropped_frames_no_route
;
525 struct dentry
*estab_plinks
;
526 struct timer_list mesh_path_timer
;
529 struct dentry
*mesh_config_dir
;
531 struct dentry
*dot11MeshRetryTimeout
;
532 struct dentry
*dot11MeshConfirmTimeout
;
533 struct dentry
*dot11MeshHoldingTimeout
;
534 struct dentry
*dot11MeshMaxRetries
;
535 struct dentry
*dot11MeshTTL
;
536 struct dentry
*auto_open_plinks
;
537 struct dentry
*dot11MeshMaxPeerLinks
;
538 struct dentry
*dot11MeshHWMPactivePathTimeout
;
539 struct dentry
*dot11MeshHWMPpreqMinInterval
;
540 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
541 struct dentry
*dot11MeshHWMPmaxPREQretries
;
542 struct dentry
*path_refresh_time
;
543 struct dentry
*min_discovery_timeout
;
548 /* must be last, dynamically sized area in this! */
549 struct ieee80211_vif vif
;
553 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
555 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
559 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data
*sdata
,
560 u8 mesh_id_len
, u8
*mesh_id
)
562 #ifdef CONFIG_MAC80211_MESH
563 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
564 ifmsh
->mesh_id_len
= mesh_id_len
;
565 memcpy(ifmsh
->mesh_id
, mesh_id
, mesh_id_len
);
572 IEEE80211_RX_MSG
= 1,
573 IEEE80211_TX_STATUS_MSG
= 2,
574 IEEE80211_DELBA_MSG
= 3,
575 IEEE80211_ADDBA_MSG
= 4,
578 /* maximum number of hardware queues we support. */
579 #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
581 struct ieee80211_local
{
582 /* embed the driver visible part.
583 * don't cast (use the static inlines below), but we keep
584 * it first anyway so they become a no-op */
585 struct ieee80211_hw hw
;
587 const struct ieee80211_ops
*ops
;
589 unsigned long queue_pool
[BITS_TO_LONGS(QD_MAX_QUEUES
)];
591 struct net_device
*mdev
; /* wmaster# - "master" 802.11 device */
593 int monitors
, cooked_mntrs
;
594 /* number of interfaces with corresponding FIF_ flags */
595 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
;
596 unsigned int filter_flags
; /* FIF_* */
597 struct iw_statistics wstats
;
599 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
600 int tx_headroom
; /* required headroom for hardware/radiotap */
602 /* Tasklet and skb queue to process calls from IRQ mode. All frames
603 * added to skb_queue will be processed, but frames in
604 * skb_queue_unreliable may be dropped if the total length of these
605 * queues increases over the limit. */
606 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
607 struct tasklet_struct tasklet
;
608 struct sk_buff_head skb_queue
;
609 struct sk_buff_head skb_queue_unreliable
;
613 * The lock only protects the list, hash, timer and counter
614 * against manipulation, reads are done in RCU. Additionally,
615 * the lock protects each BSS's TIM bitmap.
618 unsigned long num_sta
;
619 struct list_head sta_list
;
620 struct list_head sta_flush_list
;
621 struct work_struct sta_flush_work
;
622 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
623 struct timer_list sta_cleanup
;
625 unsigned long queues_pending
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
626 unsigned long queues_pending_run
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
627 struct ieee80211_tx_stored_packet pending_packet
[IEEE80211_MAX_QUEUES
];
628 struct tasklet_struct tx_pending_tasklet
;
630 /* number of interfaces with corresponding IFF_ flags */
631 atomic_t iff_allmultis
, iff_promiscs
;
633 struct rate_control_ref
*rate_ctrl
;
636 int fragmentation_threshold
;
637 int short_retry_limit
; /* dot11ShortRetryLimit */
638 int long_retry_limit
; /* dot11LongRetryLimit */
640 struct crypto_blkcipher
*wep_tx_tfm
;
641 struct crypto_blkcipher
*wep_rx_tfm
;
644 struct list_head interfaces
;
647 * Key lock, protects sdata's key_list and sta_info's
648 * key pointers (write access, they're RCU.)
653 /* Scanning and BSS list */
654 bool sw_scanning
, hw_scanning
;
655 int scan_channel_idx
;
656 enum ieee80211_band scan_band
;
658 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
659 unsigned long last_scan_completed
;
660 struct delayed_work scan_work
;
661 struct ieee80211_sub_if_data
*scan_sdata
;
662 struct ieee80211_channel
*oper_channel
, *scan_channel
;
663 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
664 size_t scan_ssid_len
;
665 struct list_head bss_list
;
666 struct ieee80211_bss
*bss_hash
[STA_HASH_SIZE
];
670 /* dot11CountersTable */
671 u32 dot11TransmittedFragmentCount
;
672 u32 dot11MulticastTransmittedFrameCount
;
673 u32 dot11FailedCount
;
675 u32 dot11MultipleRetryCount
;
676 u32 dot11FrameDuplicateCount
;
677 u32 dot11ReceivedFragmentCount
;
678 u32 dot11MulticastReceivedFrameCount
;
679 u32 dot11TransmittedFrameCount
;
680 u32 dot11WEPUndecryptableCount
;
682 #ifdef CONFIG_MAC80211_LEDS
683 int tx_led_counter
, rx_led_counter
;
684 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
685 char tx_led_name
[32], rx_led_name
[32],
686 assoc_led_name
[32], radio_led_name
[32];
689 #ifdef CONFIG_MAC80211_DEBUGFS
690 struct work_struct sta_debugfs_add
;
693 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
694 /* TX/RX handler statistics */
695 unsigned int tx_handlers_drop
;
696 unsigned int tx_handlers_queued
;
697 unsigned int tx_handlers_drop_unencrypted
;
698 unsigned int tx_handlers_drop_fragment
;
699 unsigned int tx_handlers_drop_wep
;
700 unsigned int tx_handlers_drop_not_assoc
;
701 unsigned int tx_handlers_drop_unauth_port
;
702 unsigned int rx_handlers_drop
;
703 unsigned int rx_handlers_queued
;
704 unsigned int rx_handlers_drop_nullfunc
;
705 unsigned int rx_handlers_drop_defrag
;
706 unsigned int rx_handlers_drop_short
;
707 unsigned int rx_handlers_drop_passive_scan
;
708 unsigned int tx_expand_skb_head
;
709 unsigned int tx_expand_skb_head_cloned
;
710 unsigned int rx_expand_skb_head
;
711 unsigned int rx_expand_skb_head2
;
712 unsigned int rx_handlers_fragments
;
713 unsigned int tx_status_drop
;
714 #define I802_DEBUG_INC(c) (c)++
715 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
716 #define I802_DEBUG_INC(c) do { } while (0)
717 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
720 int total_ps_buffered
; /* total number of all buffered unicast and
721 * multicast packets for power saving stations
723 int wifi_wme_noack_test
;
724 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
726 #ifdef CONFIG_MAC80211_DEBUGFS
727 struct local_debugfsdentries
{
728 struct dentry
*frequency
;
729 struct dentry
*antenna_sel_tx
;
730 struct dentry
*antenna_sel_rx
;
731 struct dentry
*rts_threshold
;
732 struct dentry
*fragmentation_threshold
;
733 struct dentry
*short_retry_limit
;
734 struct dentry
*long_retry_limit
;
735 struct dentry
*total_ps_buffered
;
736 struct dentry
*wep_iv
;
737 struct dentry
*statistics
;
738 struct local_debugfsdentries_statsdentries
{
739 struct dentry
*transmitted_fragment_count
;
740 struct dentry
*multicast_transmitted_frame_count
;
741 struct dentry
*failed_count
;
742 struct dentry
*retry_count
;
743 struct dentry
*multiple_retry_count
;
744 struct dentry
*frame_duplicate_count
;
745 struct dentry
*received_fragment_count
;
746 struct dentry
*multicast_received_frame_count
;
747 struct dentry
*transmitted_frame_count
;
748 struct dentry
*wep_undecryptable_count
;
749 struct dentry
*num_scans
;
750 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
751 struct dentry
*tx_handlers_drop
;
752 struct dentry
*tx_handlers_queued
;
753 struct dentry
*tx_handlers_drop_unencrypted
;
754 struct dentry
*tx_handlers_drop_fragment
;
755 struct dentry
*tx_handlers_drop_wep
;
756 struct dentry
*tx_handlers_drop_not_assoc
;
757 struct dentry
*tx_handlers_drop_unauth_port
;
758 struct dentry
*rx_handlers_drop
;
759 struct dentry
*rx_handlers_queued
;
760 struct dentry
*rx_handlers_drop_nullfunc
;
761 struct dentry
*rx_handlers_drop_defrag
;
762 struct dentry
*rx_handlers_drop_short
;
763 struct dentry
*rx_handlers_drop_passive_scan
;
764 struct dentry
*tx_expand_skb_head
;
765 struct dentry
*tx_expand_skb_head_cloned
;
766 struct dentry
*rx_expand_skb_head
;
767 struct dentry
*rx_expand_skb_head2
;
768 struct dentry
*rx_handlers_fragments
;
769 struct dentry
*tx_status_drop
;
771 struct dentry
*dot11ACKFailureCount
;
772 struct dentry
*dot11RTSFailureCount
;
773 struct dentry
*dot11FCSErrorCount
;
774 struct dentry
*dot11RTSSuccessCount
;
776 struct dentry
*stations
;
782 static inline struct ieee80211_sub_if_data
*
783 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
785 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
787 BUG_ON(!local
|| local
->mdev
== dev
);
789 return netdev_priv(dev
);
792 /* this struct represents 802.11n's RA/TID combination */
793 struct ieee80211_ra_tid
{
798 /* Parsed Information Elements */
799 struct ieee802_11_elems
{
803 /* pointers to IEs */
829 u8
*quiet_elem
; /* first quite element */
831 /* length of them, respectively */
843 u8 ext_supp_rates_len
;
854 u8 ch_switch_elem_len
;
856 u8 pwr_constr_elem_len
;
858 u8 num_of_quiet_elem
; /* can be more the one */
861 static inline struct ieee80211_local
*hw_to_local(
862 struct ieee80211_hw
*hw
)
864 return container_of(hw
, struct ieee80211_local
, hw
);
867 static inline struct ieee80211_hw
*local_to_hw(
868 struct ieee80211_local
*local
)
873 struct sta_attribute
{
874 struct attribute attr
;
875 ssize_t (*show
)(const struct sta_info
*, char *buf
);
876 ssize_t (*store
)(struct sta_info
*, const char *buf
, size_t count
);
879 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
881 return compare_ether_addr(raddr
, addr
) == 0 ||
882 is_broadcast_ether_addr(raddr
);
886 int ieee80211_hw_config(struct ieee80211_local
*local
);
887 int ieee80211_if_config(struct ieee80211_sub_if_data
*sdata
, u32 changed
);
888 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
889 u32
ieee80211_handle_ht(struct ieee80211_local
*local
, int enable_ht
,
890 struct ieee80211_ht_info
*req_ht_cap
,
891 struct ieee80211_ht_bss_info
*req_bss_cap
);
892 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
894 void ieee80211_configure_filter(struct ieee80211_local
*local
);
896 /* wireless extensions */
897 extern const struct iw_handler_def ieee80211_iw_handler_def
;
900 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
901 void ieee80211_scan_work(struct work_struct
*work
);
902 void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
903 struct ieee80211_rx_status
*rx_status
);
904 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t len
);
905 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t *len
);
906 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data
*sdata
, u8
*bssid
);
907 void ieee80211_sta_req_auth(struct ieee80211_sub_if_data
*sdata
,
908 struct ieee80211_if_sta
*ifsta
);
909 struct sta_info
*ieee80211_ibss_add_sta(struct ieee80211_sub_if_data
*sdata
,
910 struct sk_buff
*skb
, u8
*bssid
,
911 u8
*addr
, u64 supp_rates
);
912 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
913 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
914 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
915 u64
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
916 struct ieee802_11_elems
*elems
,
917 enum ieee80211_band band
);
918 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
919 u8
*ssid
, size_t ssid_len
);
921 /* scan/BSS handling */
922 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
923 u8
*ssid
, size_t ssid_len
);
924 int ieee80211_scan_results(struct ieee80211_local
*local
,
925 struct iw_request_info
*info
,
926 char *buf
, size_t len
);
928 ieee80211_scan_rx(struct ieee80211_sub_if_data
*sdata
,
930 struct ieee80211_rx_status
*rx_status
);
931 void ieee80211_rx_bss_list_init(struct ieee80211_local
*local
);
932 void ieee80211_rx_bss_list_deinit(struct ieee80211_local
*local
);
933 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data
*sdata
,
934 char *ie
, size_t len
);
936 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
937 int ieee80211_start_scan(struct ieee80211_sub_if_data
*scan_sdata
,
938 u8
*ssid
, size_t ssid_len
);
939 struct ieee80211_bss
*
940 ieee80211_bss_info_update(struct ieee80211_local
*local
,
941 struct ieee80211_rx_status
*rx_status
,
942 struct ieee80211_mgmt
*mgmt
,
944 struct ieee802_11_elems
*elems
,
945 int freq
, bool beacon
);
946 struct ieee80211_bss
*
947 ieee80211_rx_bss_add(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
948 u8
*ssid
, u8 ssid_len
);
949 struct ieee80211_bss
*
950 ieee80211_rx_bss_get(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
951 u8
*ssid
, u8 ssid_len
);
952 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
953 struct ieee80211_bss
*bss
);
955 /* interface handling */
956 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
957 struct net_device
**new_dev
, enum nl80211_iftype type
,
958 struct vif_params
*params
);
959 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
960 enum nl80211_iftype type
);
961 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
962 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
965 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
966 void ieee80211_tx_pending(unsigned long data
);
967 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
968 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
969 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
972 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap
*ht_cap_ie
,
973 struct ieee80211_ht_info
*ht_info
);
974 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
975 struct ieee80211_ht_addt_info
*ht_add_info_ie
,
976 struct ieee80211_ht_bss_info
*bss_info
);
977 void ieee80211_send_bar(struct ieee80211_sub_if_data
*sdata
, u8
*ra
, u16 tid
, u16 ssn
);
979 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data
*sdata
, u8
*da
,
980 u16 tid
, u16 initiator
, u16 reason
);
981 void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data
*sdata
, u8
*addr
);
982 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
983 struct sta_info
*sta
,
984 struct ieee80211_mgmt
*mgmt
, size_t len
);
985 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
986 struct sta_info
*sta
,
987 struct ieee80211_mgmt
*mgmt
,
989 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
990 struct sta_info
*sta
,
991 struct ieee80211_mgmt
*mgmt
,
994 /* Spectrum management */
995 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
996 struct ieee80211_mgmt
*mgmt
,
999 /* utility functions/constants */
1000 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
1001 extern const unsigned char rfc1042_header
[6];
1002 extern const unsigned char bridge_tunnel_header
[6];
1003 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1004 enum nl80211_iftype type
);
1005 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
1006 int rate
, int erp
, int short_preamble
);
1007 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1008 struct ieee80211_hdr
*hdr
);
1009 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
);
1010 void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1012 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1013 struct ieee802_11_elems
*elems
);
1014 int ieee80211_set_freq(struct ieee80211_sub_if_data
*sdata
, int freq
);
1015 u64
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1016 enum ieee80211_band band
);
1018 #ifdef CONFIG_MAC80211_NOINLINE
1019 #define debug_noinline noinline
1021 #define debug_noinline
1024 #endif /* IEEE80211_I_H */