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 18
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 #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
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_bss
{
75 /* Yes, this is a hack */
76 struct cfg80211_bss cbss
;
78 /* don't want to look up all the time */
80 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
86 unsigned long last_probe_resp
;
88 #ifdef CONFIG_MAC80211_MESH
94 #define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
96 size_t supp_rates_len
;
99 * During assocation, we save an ERP value from a probe response so
100 * that we can feed ERP info to the driver when handling the
101 * association completes. these fields probably won't be up-to-date
102 * otherwise, you probably don't want to use them.
108 static inline u8
*bss_mesh_cfg(struct ieee80211_bss
*bss
)
110 #ifdef CONFIG_MAC80211_MESH
111 return bss
->mesh_cfg
;
116 static inline u8
*bss_mesh_id(struct ieee80211_bss
*bss
)
118 #ifdef CONFIG_MAC80211_MESH
124 static inline u8
bss_mesh_id_len(struct ieee80211_bss
*bss
)
126 #ifdef CONFIG_MAC80211_MESH
127 return bss
->mesh_id_len
;
133 typedef unsigned __bitwise__ ieee80211_tx_result
;
134 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
135 #define TX_DROP ((__force ieee80211_tx_result) 1u)
136 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
138 #define IEEE80211_TX_FRAGMENTED BIT(0)
139 #define IEEE80211_TX_UNICAST BIT(1)
140 #define IEEE80211_TX_PS_BUFFERED BIT(2)
142 struct ieee80211_tx_data
{
144 struct net_device
*dev
;
145 struct ieee80211_local
*local
;
146 struct ieee80211_sub_if_data
*sdata
;
147 struct sta_info
*sta
;
148 struct ieee80211_key
*key
;
150 struct ieee80211_channel
*channel
;
157 typedef unsigned __bitwise__ ieee80211_rx_result
;
158 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
159 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
160 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
161 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
163 #define IEEE80211_RX_IN_SCAN BIT(0)
164 /* frame is destined to interface currently processed (incl. multicast frames) */
165 #define IEEE80211_RX_RA_MATCH BIT(1)
166 #define IEEE80211_RX_AMSDU BIT(2)
167 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
168 #define IEEE80211_RX_FRAGMENTED BIT(4)
170 struct ieee80211_rx_data
{
172 struct net_device
*dev
;
173 struct ieee80211_local
*local
;
174 struct ieee80211_sub_if_data
*sdata
;
175 struct sta_info
*sta
;
176 struct ieee80211_key
*key
;
177 struct ieee80211_rx_status
*status
;
178 struct ieee80211_rate
*rate
;
181 int sent_ps_buffered
;
189 int head_len
, tail_len
;
193 struct ieee80211_if_ap
{
194 struct beacon_data
*beacon
;
196 struct list_head vlans
;
198 /* yes, this looks ugly, but guarantees that we can later use
200 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
201 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
202 struct sk_buff_head ps_bc_buf
;
203 atomic_t num_sta_ps
; /* number of stations in PS mode */
207 struct ieee80211_if_wds
{
208 struct sta_info
*sta
;
209 u8 remote_addr
[ETH_ALEN
];
212 struct ieee80211_if_vlan
{
213 struct list_head list
;
217 __u32 fwded_frames
; /* Mesh forwarded frames */
218 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
219 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
220 atomic_t estab_plinks
;
223 #define PREQ_Q_F_START 0x1
224 #define PREQ_Q_F_REFRESH 0x2
225 struct mesh_preq_queue
{
226 struct list_head list
;
231 /* flags used in struct ieee80211_if_managed.flags */
232 #define IEEE80211_STA_SSID_SET BIT(0)
233 #define IEEE80211_STA_BSSID_SET BIT(1)
234 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
235 #define IEEE80211_STA_AUTHENTICATED BIT(3)
236 #define IEEE80211_STA_ASSOCIATED BIT(4)
237 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
238 #define IEEE80211_STA_CREATE_IBSS BIT(6)
239 /* hole at 7, please re-use */
240 #define IEEE80211_STA_WMM_ENABLED BIT(8)
241 /* hole at 9, please re-use */
242 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
243 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
244 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
245 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
246 #define IEEE80211_STA_TKIP_WEP_USED BIT(14)
247 #define IEEE80211_STA_CSA_RECEIVED BIT(15)
248 #define IEEE80211_STA_MFP_ENABLED BIT(16)
249 #define IEEE80211_STA_EXT_SME BIT(17)
250 /* flags for MLME request */
251 #define IEEE80211_STA_REQ_SCAN 0
252 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
253 #define IEEE80211_STA_REQ_AUTH 2
254 #define IEEE80211_STA_REQ_RUN 3
256 /* bitfield of allowed auth algs */
257 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
258 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
259 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
260 #define IEEE80211_AUTH_ALG_FT BIT(3)
262 struct ieee80211_if_managed
{
263 struct timer_list timer
;
264 struct timer_list chswitch_timer
;
265 struct work_struct work
;
266 struct work_struct chswitch_work
;
267 struct work_struct beacon_loss_work
;
269 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
271 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
275 IEEE80211_STA_MLME_DISABLED
,
276 IEEE80211_STA_MLME_DIRECT_PROBE
,
277 IEEE80211_STA_MLME_AUTHENTICATE
,
278 IEEE80211_STA_MLME_ASSOCIATE
,
279 IEEE80211_STA_MLME_ASSOCIATED
,
284 u8
*extra_ie
; /* to be added to the end of AssocReq */
287 /* The last AssocReq/Resp IEs */
288 u8
*assocreq_ies
, *assocresp_ies
;
289 size_t assocreq_ies_len
, assocresp_ies_len
;
291 struct sk_buff_head skb_queue
;
293 int assoc_scan_tries
; /* number of scans done pre-association */
294 int direct_probe_tries
; /* retries for direct probes */
295 int auth_tries
; /* retries for auth req */
296 int assoc_tries
; /* retries for assoc req */
298 bool powersave
; /* powersave requested for this iface */
300 unsigned long request
;
302 unsigned long last_probe
;
303 unsigned long last_beacon
;
307 unsigned int auth_algs
; /* bitfield of allowed auth algs */
308 int auth_alg
; /* currently used IEEE 802.11 authentication algorithm */
309 int auth_transaction
;
312 IEEE80211_MFP_DISABLED
,
313 IEEE80211_MFP_OPTIONAL
,
314 IEEE80211_MFP_REQUIRED
315 } mfp
; /* management frame protection */
317 int wmm_last_param_set
;
319 /* Extra IE data for management frames */
321 size_t sme_auth_ie_len
;
324 enum ieee80211_ibss_flags
{
325 IEEE80211_IBSS_AUTO_CHANNEL_SEL
= BIT(0),
326 IEEE80211_IBSS_AUTO_BSSID_SEL
= BIT(1),
327 IEEE80211_IBSS_BSSID_SET
= BIT(2),
328 IEEE80211_IBSS_PREV_BSSID_SET
= BIT(3),
329 IEEE80211_IBSS_SSID_SET
= BIT(4),
332 enum ieee80211_ibss_request
{
333 IEEE80211_IBSS_REQ_RUN
= 0,
336 struct ieee80211_if_ibss
{
337 struct timer_list timer
;
338 struct work_struct work
;
340 struct sk_buff_head skb_queue
;
342 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
349 unsigned long request
;
351 unsigned long ibss_join_req
;
352 struct sk_buff
*probe_resp
; /* ProbeResp template for IBSS */
355 IEEE80211_IBSS_MLME_SEARCH
,
356 IEEE80211_IBSS_MLME_JOINED
,
360 struct ieee80211_if_mesh
{
361 struct work_struct work
;
362 struct timer_list housekeeping_timer
;
363 struct timer_list mesh_path_timer
;
364 struct sk_buff_head skb_queue
;
368 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
370 /* Active Path Selection Protocol Identifier */
372 /* Active Path Selection Metric Identifier */
374 /* Congestion Control Mode Identifier */
376 /* Local mesh Destination Sequence Number */
378 /* Last used PREQ ID */
381 /* Timestamp of last DSN update */
382 unsigned long last_dsn_update
;
383 /* Timestamp of last DSN sent */
384 unsigned long last_preq
;
385 struct mesh_rmc
*rmc
;
386 spinlock_t mesh_preq_queue_lock
;
387 struct mesh_preq_queue preq_queue
;
389 struct mesh_stats mshstats
;
390 struct mesh_config mshcfg
;
392 bool accepting_plinks
;
395 #ifdef CONFIG_MAC80211_MESH
396 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
397 do { (msh)->mshstats.name++; } while (0)
399 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
404 * enum ieee80211_sub_if_data_flags - virtual interface flags
406 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
407 * @IEEE80211_SDATA_PROMISC: interface is promisc
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_OPERATING_GMODE
= BIT(2),
417 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
420 struct ieee80211_sub_if_data
{
421 struct list_head list
;
423 struct wireless_dev wdev
;
426 struct list_head key_list
;
428 struct net_device
*dev
;
429 struct ieee80211_local
*local
;
433 int drop_unencrypted
;
435 /* Fragment table for host-based reassembly */
436 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
437 unsigned int fragment_next
;
439 #define NUM_DEFAULT_KEYS 4
440 #define NUM_DEFAULT_MGMT_KEYS 2
441 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
442 struct ieee80211_key
*default_key
;
443 struct ieee80211_key
*default_mgmt_key
;
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_managed mgd
;
462 struct ieee80211_if_ibss ibss
;
463 #ifdef CONFIG_MAC80211_MESH
464 struct ieee80211_if_mesh mesh
;
469 #ifdef CONFIG_MAC80211_DEBUGFS
470 struct dentry
*debugfsdir
;
473 struct dentry
*drop_unencrypted
;
474 struct dentry
*state
;
475 struct dentry
*bssid
;
476 struct dentry
*prev_bssid
;
477 struct dentry
*ssid_len
;
479 struct dentry
*ap_capab
;
480 struct dentry
*capab
;
481 struct dentry
*extra_ie_len
;
482 struct dentry
*auth_tries
;
483 struct dentry
*assoc_tries
;
484 struct dentry
*auth_algs
;
485 struct dentry
*auth_alg
;
486 struct dentry
*auth_transaction
;
487 struct dentry
*flags
;
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
*force_unicast_rateidx
;
496 struct dentry
*max_ratectrl_rateidx
;
497 struct dentry
*num_buffered_multicast
;
500 struct dentry
*drop_unencrypted
;
502 struct dentry
*force_unicast_rateidx
;
503 struct dentry
*max_ratectrl_rateidx
;
506 struct dentry
*drop_unencrypted
;
507 struct dentry
*force_unicast_rateidx
;
508 struct dentry
*max_ratectrl_rateidx
;
515 struct dentry
*default_key
;
516 struct dentry
*default_mgmt_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 enum queue_stop_reason
{
579 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
580 IEEE80211_QUEUE_STOP_REASON_PS
,
581 IEEE80211_QUEUE_STOP_REASON_CSA
,
582 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
583 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
584 IEEE80211_QUEUE_STOP_REASON_PENDING
,
587 struct ieee80211_master_priv
{
588 struct ieee80211_local
*local
;
591 struct ieee80211_local
{
592 /* embed the driver visible part.
593 * don't cast (use the static inlines below), but we keep
594 * it first anyway so they become a no-op */
595 struct ieee80211_hw hw
;
597 const struct ieee80211_ops
*ops
;
599 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
600 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
601 spinlock_t queue_stop_reason_lock
;
603 struct net_device
*mdev
; /* wmaster# - "master" 802.11 device */
605 int monitors
, cooked_mntrs
;
606 /* number of interfaces with corresponding FIF_ flags */
607 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
;
608 unsigned int filter_flags
; /* FIF_* */
609 struct iw_statistics wstats
;
610 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
611 int tx_headroom
; /* required headroom for hardware/radiotap */
613 /* Tasklet and skb queue to process calls from IRQ mode. All frames
614 * added to skb_queue will be processed, but frames in
615 * skb_queue_unreliable may be dropped if the total length of these
616 * queues increases over the limit. */
617 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
618 struct tasklet_struct tasklet
;
619 struct sk_buff_head skb_queue
;
620 struct sk_buff_head skb_queue_unreliable
;
624 * The lock only protects the list, hash, timer and counter
625 * against manipulation, reads are done in RCU. Additionally,
626 * the lock protects each BSS's TIM bitmap.
629 unsigned long num_sta
;
630 struct list_head sta_list
;
631 struct list_head sta_flush_list
;
632 struct work_struct sta_flush_work
;
633 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
634 struct timer_list sta_cleanup
;
636 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
637 struct tasklet_struct tx_pending_tasklet
;
640 * This lock is used to prevent concurrent A-MPDU
641 * session start/stop processing, this thus also
642 * synchronises the ->ampdu_action() callback to
643 * drivers and limits it to one at a time.
645 spinlock_t ampdu_lock
;
647 /* number of interfaces with corresponding IFF_ flags */
648 atomic_t iff_allmultis
, iff_promiscs
;
650 struct rate_control_ref
*rate_ctrl
;
653 int fragmentation_threshold
;
655 struct crypto_blkcipher
*wep_tx_tfm
;
656 struct crypto_blkcipher
*wep_rx_tfm
;
660 struct list_head interfaces
;
661 struct mutex iflist_mtx
;
664 * Key lock, protects sdata's key_list and sta_info's
665 * key pointers (write access, they're RCU.)
670 /* Scanning and BSS list */
671 bool sw_scanning
, hw_scanning
;
672 struct cfg80211_ssid scan_ssid
;
673 struct cfg80211_scan_request int_scan_req
;
674 struct cfg80211_scan_request
*scan_req
;
675 struct ieee80211_channel
*scan_channel
;
678 int scan_channel_idx
;
681 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
682 unsigned long last_scan_completed
;
683 struct delayed_work scan_work
;
684 struct ieee80211_sub_if_data
*scan_sdata
;
685 enum nl80211_channel_type oper_channel_type
;
686 struct ieee80211_channel
*oper_channel
, *csa_channel
;
689 /* dot11CountersTable */
690 u32 dot11TransmittedFragmentCount
;
691 u32 dot11MulticastTransmittedFrameCount
;
692 u32 dot11FailedCount
;
694 u32 dot11MultipleRetryCount
;
695 u32 dot11FrameDuplicateCount
;
696 u32 dot11ReceivedFragmentCount
;
697 u32 dot11MulticastReceivedFrameCount
;
698 u32 dot11TransmittedFrameCount
;
700 #ifdef CONFIG_MAC80211_LEDS
701 int tx_led_counter
, rx_led_counter
;
702 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
703 char tx_led_name
[32], rx_led_name
[32],
704 assoc_led_name
[32], radio_led_name
[32];
707 #ifdef CONFIG_MAC80211_DEBUGFS
708 struct work_struct sta_debugfs_add
;
711 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
712 /* TX/RX handler statistics */
713 unsigned int tx_handlers_drop
;
714 unsigned int tx_handlers_queued
;
715 unsigned int tx_handlers_drop_unencrypted
;
716 unsigned int tx_handlers_drop_fragment
;
717 unsigned int tx_handlers_drop_wep
;
718 unsigned int tx_handlers_drop_not_assoc
;
719 unsigned int tx_handlers_drop_unauth_port
;
720 unsigned int rx_handlers_drop
;
721 unsigned int rx_handlers_queued
;
722 unsigned int rx_handlers_drop_nullfunc
;
723 unsigned int rx_handlers_drop_defrag
;
724 unsigned int rx_handlers_drop_short
;
725 unsigned int rx_handlers_drop_passive_scan
;
726 unsigned int tx_expand_skb_head
;
727 unsigned int tx_expand_skb_head_cloned
;
728 unsigned int rx_expand_skb_head
;
729 unsigned int rx_expand_skb_head2
;
730 unsigned int rx_handlers_fragments
;
731 unsigned int tx_status_drop
;
732 #define I802_DEBUG_INC(c) (c)++
733 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
734 #define I802_DEBUG_INC(c) do { } while (0)
735 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
738 int total_ps_buffered
; /* total number of all buffered unicast and
739 * multicast packets for power saving stations
741 int wifi_wme_noack_test
;
742 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
746 * PS can only be enabled when we have exactly one managed
747 * interface (and monitors) in PS, this then points there.
749 struct ieee80211_sub_if_data
*ps_sdata
;
750 struct work_struct dynamic_ps_enable_work
;
751 struct work_struct dynamic_ps_disable_work
;
752 struct timer_list dynamic_ps_timer
;
753 struct notifier_block network_latency_notifier
;
755 int user_power_level
; /* in dBm */
756 int power_constr_level
; /* in dBm */
758 struct work_struct restart_work
;
760 #ifdef CONFIG_MAC80211_DEBUGFS
761 struct local_debugfsdentries
{
762 struct dentry
*rcdir
;
763 struct dentry
*rcname
;
764 struct dentry
*frequency
;
765 struct dentry
*rts_threshold
;
766 struct dentry
*fragmentation_threshold
;
767 struct dentry
*short_retry_limit
;
768 struct dentry
*long_retry_limit
;
769 struct dentry
*total_ps_buffered
;
770 struct dentry
*wep_iv
;
772 struct dentry
*reset
;
773 struct dentry
*statistics
;
774 struct local_debugfsdentries_statsdentries
{
775 struct dentry
*transmitted_fragment_count
;
776 struct dentry
*multicast_transmitted_frame_count
;
777 struct dentry
*failed_count
;
778 struct dentry
*retry_count
;
779 struct dentry
*multiple_retry_count
;
780 struct dentry
*frame_duplicate_count
;
781 struct dentry
*received_fragment_count
;
782 struct dentry
*multicast_received_frame_count
;
783 struct dentry
*transmitted_frame_count
;
784 struct dentry
*wep_undecryptable_count
;
785 struct dentry
*num_scans
;
786 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
787 struct dentry
*tx_handlers_drop
;
788 struct dentry
*tx_handlers_queued
;
789 struct dentry
*tx_handlers_drop_unencrypted
;
790 struct dentry
*tx_handlers_drop_fragment
;
791 struct dentry
*tx_handlers_drop_wep
;
792 struct dentry
*tx_handlers_drop_not_assoc
;
793 struct dentry
*tx_handlers_drop_unauth_port
;
794 struct dentry
*rx_handlers_drop
;
795 struct dentry
*rx_handlers_queued
;
796 struct dentry
*rx_handlers_drop_nullfunc
;
797 struct dentry
*rx_handlers_drop_defrag
;
798 struct dentry
*rx_handlers_drop_short
;
799 struct dentry
*rx_handlers_drop_passive_scan
;
800 struct dentry
*tx_expand_skb_head
;
801 struct dentry
*tx_expand_skb_head_cloned
;
802 struct dentry
*rx_expand_skb_head
;
803 struct dentry
*rx_expand_skb_head2
;
804 struct dentry
*rx_handlers_fragments
;
805 struct dentry
*tx_status_drop
;
807 struct dentry
*dot11ACKFailureCount
;
808 struct dentry
*dot11RTSFailureCount
;
809 struct dentry
*dot11FCSErrorCount
;
810 struct dentry
*dot11RTSSuccessCount
;
812 struct dentry
*stations
;
818 static inline struct ieee80211_sub_if_data
*
819 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
821 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
823 BUG_ON(!local
|| local
->mdev
== dev
);
825 return netdev_priv(dev
);
828 /* this struct represents 802.11n's RA/TID combination */
829 struct ieee80211_ra_tid
{
834 /* Parsed Information Elements */
835 struct ieee802_11_elems
{
839 /* pointers to IEs */
854 struct ieee80211_ht_cap
*ht_cap_elem
;
855 struct ieee80211_ht_info
*ht_info_elem
;
865 u8
*quiet_elem
; /* first quite element */
868 /* length of them, respectively */
880 u8 ext_supp_rates_len
;
889 u8 ch_switch_elem_len
;
891 u8 pwr_constr_elem_len
;
893 u8 num_of_quiet_elem
; /* can be more the one */
897 static inline struct ieee80211_local
*hw_to_local(
898 struct ieee80211_hw
*hw
)
900 return container_of(hw
, struct ieee80211_local
, hw
);
903 static inline struct ieee80211_hw
*local_to_hw(
904 struct ieee80211_local
*local
)
910 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
912 return compare_ether_addr(raddr
, addr
) == 0 ||
913 is_broadcast_ether_addr(raddr
);
917 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
918 int ieee80211_if_config(struct ieee80211_sub_if_data
*sdata
, u32 changed
);
919 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
920 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
922 void ieee80211_configure_filter(struct ieee80211_local
*local
);
923 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
925 /* wireless extensions */
926 extern const struct iw_handler_def ieee80211_iw_handler_def
;
929 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
930 ieee80211_rx_result
ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data
*sdata
,
932 struct ieee80211_rx_status
*rx_status
);
933 int ieee80211_sta_commit(struct ieee80211_sub_if_data
*sdata
);
934 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t len
);
935 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t *len
);
936 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data
*sdata
, u8
*bssid
);
937 void ieee80211_sta_req_auth(struct ieee80211_sub_if_data
*sdata
);
938 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
939 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
940 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
941 struct ieee80211_sub_if_data
*sdata
);
942 void ieee80211_recalc_ps(struct ieee80211_local
*local
, s32 latency
);
943 int ieee80211_max_network_latency(struct notifier_block
*nb
,
944 unsigned long data
, void *dummy
);
947 int ieee80211_ibss_commit(struct ieee80211_sub_if_data
*sdata
);
948 int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t len
);
949 int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t *len
);
950 int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data
*sdata
, u8
*bssid
);
951 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
952 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
954 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
955 struct ieee80211_rx_status
*rx_status
);
956 struct sta_info
*ieee80211_ibss_add_sta(struct ieee80211_sub_if_data
*sdata
,
957 u8
*bssid
, u8
*addr
, u32 supp_rates
);
959 /* scan/BSS handling */
960 void ieee80211_scan_work(struct work_struct
*work
);
961 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
962 struct cfg80211_scan_request
*req
);
963 int ieee80211_scan_results(struct ieee80211_local
*local
,
964 struct iw_request_info
*info
,
965 char *buf
, size_t len
);
967 ieee80211_scan_rx(struct ieee80211_sub_if_data
*sdata
,
969 struct ieee80211_rx_status
*rx_status
);
970 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data
*sdata
,
971 const char *ie
, size_t len
);
973 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
974 void ieee80211_scan_failed(struct ieee80211_local
*local
);
975 int ieee80211_start_scan(struct ieee80211_sub_if_data
*scan_sdata
,
976 struct cfg80211_scan_request
*req
);
977 struct ieee80211_bss
*
978 ieee80211_bss_info_update(struct ieee80211_local
*local
,
979 struct ieee80211_rx_status
*rx_status
,
980 struct ieee80211_mgmt
*mgmt
,
982 struct ieee802_11_elems
*elems
,
983 struct ieee80211_channel
*channel
,
985 struct ieee80211_bss
*
986 ieee80211_rx_bss_get(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
987 u8
*ssid
, u8 ssid_len
);
988 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
989 struct ieee80211_bss
*bss
);
990 void ieee80211_rx_bss_remove(struct ieee80211_sub_if_data
*sdata
, u8
*bssid
,
991 int freq
, u8
*ssid
, u8 ssid_len
);
993 /* interface handling */
994 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
995 struct net_device
**new_dev
, enum nl80211_iftype type
,
996 struct vif_params
*params
);
997 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
998 enum nl80211_iftype type
);
999 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1000 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1003 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1004 void ieee80211_tx_pending(unsigned long data
);
1005 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
1006 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
1007 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
1010 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band
*sband
,
1011 struct ieee80211_ht_cap
*ht_cap_ie
,
1012 struct ieee80211_sta_ht_cap
*ht_cap
);
1013 void ieee80211_send_bar(struct ieee80211_sub_if_data
*sdata
, u8
*ra
, u16 tid
, u16 ssn
);
1014 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1015 const u8
*da
, u16 tid
,
1016 u16 initiator
, u16 reason_code
);
1018 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data
*sdata
, u8
*da
,
1019 u16 tid
, u16 initiator
, u16 reason
);
1020 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1021 u16 initiator
, u16 reason
);
1022 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
);
1023 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1024 struct sta_info
*sta
,
1025 struct ieee80211_mgmt
*mgmt
, size_t len
);
1026 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1027 struct sta_info
*sta
,
1028 struct ieee80211_mgmt
*mgmt
,
1030 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1031 struct sta_info
*sta
,
1032 struct ieee80211_mgmt
*mgmt
,
1035 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1036 enum ieee80211_back_parties initiator
);
1038 /* Spectrum management */
1039 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1040 struct ieee80211_mgmt
*mgmt
,
1042 void ieee80211_chswitch_timer(unsigned long data
);
1043 void ieee80211_chswitch_work(struct work_struct
*work
);
1044 void ieee80211_process_chanswitch(struct ieee80211_sub_if_data
*sdata
,
1045 struct ieee80211_channel_sw_ie
*sw_elem
,
1046 struct ieee80211_bss
*bss
);
1047 void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data
*sdata
,
1048 u16 capab_info
, u8
*pwr_constr_elem
,
1049 u8 pwr_constr_elem_len
);
1051 /* Suspend/resume and hw reconfiguration */
1052 int ieee80211_reconfig(struct ieee80211_local
*local
);
1055 int __ieee80211_suspend(struct ieee80211_hw
*hw
);
1057 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1059 return ieee80211_reconfig(hw_to_local(hw
));
1062 static inline int __ieee80211_suspend(struct ieee80211_hw
*hw
)
1067 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1073 /* utility functions/constants */
1074 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
1075 extern const unsigned char rfc1042_header
[6];
1076 extern const unsigned char bridge_tunnel_header
[6];
1077 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1078 enum nl80211_iftype type
);
1079 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
1080 int rate
, int erp
, int short_preamble
);
1081 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1082 struct ieee80211_hdr
*hdr
, const u8
*tsc
);
1083 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
);
1084 void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1086 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1087 struct ieee802_11_elems
*elems
);
1088 int ieee80211_set_freq(struct ieee80211_sub_if_data
*sdata
, int freq
);
1089 u32
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1090 enum ieee80211_band band
);
1092 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1093 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1094 void ieee80211_dynamic_ps_timer(unsigned long data
);
1095 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1096 struct ieee80211_sub_if_data
*sdata
,
1098 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1099 struct ieee80211_hdr
*hdr
);
1100 void ieee80211_beacon_loss_work(struct work_struct
*work
);
1102 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1103 enum queue_stop_reason reason
);
1104 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1105 enum queue_stop_reason reason
);
1106 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1107 enum queue_stop_reason reason
);
1108 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1109 enum queue_stop_reason reason
);
1111 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1112 u16 transaction
, u16 auth_alg
,
1113 u8
*extra
, size_t extra_len
,
1114 const u8
*bssid
, int encrypt
);
1115 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1116 const u8
*ie
, size_t ie_len
);
1117 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
1118 const u8
*ssid
, size_t ssid_len
,
1119 const u8
*ie
, size_t ie_len
);
1121 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data
*sdata
,
1122 const size_t supp_rates_len
,
1123 const u8
*supp_rates
);
1124 u32
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
1125 struct ieee802_11_elems
*elems
,
1126 enum ieee80211_band band
);
1128 #ifdef CONFIG_MAC80211_NOINLINE
1129 #define debug_noinline noinline
1131 #define debug_noinline
1134 #endif /* IEEE80211_I_H */