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 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 #define IEEE80211_STA_MFP_ENABLED BIT(16)
264 /* flags for MLME request */
265 #define IEEE80211_STA_REQ_SCAN 0
266 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
267 #define IEEE80211_STA_REQ_AUTH 2
268 #define IEEE80211_STA_REQ_RUN 3
270 /* STA/IBSS MLME states */
271 enum ieee80211_sta_mlme_state
{
272 IEEE80211_STA_MLME_DISABLED
,
273 IEEE80211_STA_MLME_DIRECT_PROBE
,
274 IEEE80211_STA_MLME_AUTHENTICATE
,
275 IEEE80211_STA_MLME_ASSOCIATE
,
276 IEEE80211_STA_MLME_ASSOCIATED
,
277 IEEE80211_STA_MLME_IBSS_SEARCH
,
278 IEEE80211_STA_MLME_IBSS_JOINED
,
281 /* bitfield of allowed auth algs */
282 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
283 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
284 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
286 struct ieee80211_if_sta
{
287 struct timer_list timer
;
288 struct timer_list chswitch_timer
;
289 struct work_struct work
;
290 struct work_struct chswitch_work
;
291 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
292 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
293 enum ieee80211_sta_mlme_state state
;
295 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
296 size_t scan_ssid_len
;
299 u8
*extra_ie
; /* to be added to the end of AssocReq */
302 /* The last AssocReq/Resp IEs */
303 u8
*assocreq_ies
, *assocresp_ies
;
304 size_t assocreq_ies_len
, assocresp_ies_len
;
306 struct sk_buff_head skb_queue
;
308 int assoc_scan_tries
; /* number of scans done pre-association */
309 int direct_probe_tries
; /* retries for direct probes */
310 int auth_tries
; /* retries for auth req */
311 int assoc_tries
; /* retries for assoc req */
313 unsigned long request
;
315 unsigned long last_probe
;
319 unsigned int auth_algs
; /* bitfield of allowed auth algs */
320 int auth_alg
; /* currently used IEEE 802.11 authentication algorithm */
321 int auth_transaction
;
324 IEEE80211_MFP_DISABLED
,
325 IEEE80211_MFP_OPTIONAL
,
326 IEEE80211_MFP_REQUIRED
327 } mfp
; /* management frame protection */
329 unsigned long ibss_join_req
;
330 struct sk_buff
*probe_resp
; /* ProbeResp template for IBSS */
331 u32 supp_rates_bits
[IEEE80211_NUM_BANDS
];
333 int wmm_last_param_set
;
336 struct ieee80211_if_mesh
{
337 struct work_struct work
;
338 struct timer_list housekeeping_timer
;
339 struct timer_list mesh_path_timer
;
340 struct sk_buff_head skb_queue
;
344 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
346 /* Active Path Selection Protocol Identifier */
348 /* Active Path Selection Metric Identifier */
350 /* Congestion Control Mode Identifier */
352 /* Local mesh Destination Sequence Number */
354 /* Last used PREQ ID */
357 /* Timestamp of last DSN update */
358 unsigned long last_dsn_update
;
359 /* Timestamp of last DSN sent */
360 unsigned long last_preq
;
361 struct mesh_rmc
*rmc
;
362 spinlock_t mesh_preq_queue_lock
;
363 struct mesh_preq_queue preq_queue
;
365 struct mesh_stats mshstats
;
366 struct mesh_config mshcfg
;
368 bool accepting_plinks
;
371 #ifdef CONFIG_MAC80211_MESH
372 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
373 do { (msh)->mshstats.name++; } while (0)
375 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
380 * enum ieee80211_sub_if_data_flags - virtual interface flags
382 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
383 * @IEEE80211_SDATA_PROMISC: interface is promisc
384 * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
385 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
386 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
387 * associated stations and deliver multicast frames both
388 * back to wireless media and to the local net stack.
390 enum ieee80211_sub_if_data_flags
{
391 IEEE80211_SDATA_ALLMULTI
= BIT(0),
392 IEEE80211_SDATA_PROMISC
= BIT(1),
393 IEEE80211_SDATA_USERSPACE_MLME
= BIT(2),
394 IEEE80211_SDATA_OPERATING_GMODE
= BIT(3),
395 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(4),
398 struct ieee80211_sub_if_data
{
399 struct list_head list
;
401 struct wireless_dev wdev
;
404 struct list_head key_list
;
406 struct net_device
*dev
;
407 struct ieee80211_local
*local
;
411 int drop_unencrypted
;
413 /* Fragment table for host-based reassembly */
414 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
415 unsigned int fragment_next
;
417 #define NUM_DEFAULT_KEYS 4
418 #define NUM_DEFAULT_MGMT_KEYS 2
419 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
420 struct ieee80211_key
*default_key
;
421 struct ieee80211_key
*default_mgmt_key
;
426 * AP this belongs to: self in AP mode and
427 * corresponding AP in VLAN mode, NULL for
428 * all others (might be needed later in IBSS)
430 struct ieee80211_if_ap
*bss
;
432 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
433 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
436 struct ieee80211_if_ap ap
;
437 struct ieee80211_if_wds wds
;
438 struct ieee80211_if_vlan vlan
;
439 struct ieee80211_if_sta sta
;
440 #ifdef CONFIG_MAC80211_MESH
441 struct ieee80211_if_mesh mesh
;
446 #ifdef CONFIG_MAC80211_DEBUGFS
447 struct dentry
*debugfsdir
;
450 struct dentry
*drop_unencrypted
;
451 struct dentry
*state
;
452 struct dentry
*bssid
;
453 struct dentry
*prev_bssid
;
454 struct dentry
*ssid_len
;
456 struct dentry
*ap_capab
;
457 struct dentry
*capab
;
458 struct dentry
*extra_ie_len
;
459 struct dentry
*auth_tries
;
460 struct dentry
*assoc_tries
;
461 struct dentry
*auth_algs
;
462 struct dentry
*auth_alg
;
463 struct dentry
*auth_transaction
;
464 struct dentry
*flags
;
465 struct dentry
*force_unicast_rateidx
;
466 struct dentry
*max_ratectrl_rateidx
;
469 struct dentry
*drop_unencrypted
;
470 struct dentry
*num_sta_ps
;
471 struct dentry
*dtim_count
;
472 struct dentry
*force_unicast_rateidx
;
473 struct dentry
*max_ratectrl_rateidx
;
474 struct dentry
*num_buffered_multicast
;
477 struct dentry
*drop_unencrypted
;
479 struct dentry
*force_unicast_rateidx
;
480 struct dentry
*max_ratectrl_rateidx
;
483 struct dentry
*drop_unencrypted
;
484 struct dentry
*force_unicast_rateidx
;
485 struct dentry
*max_ratectrl_rateidx
;
492 struct dentry
*default_key
;
493 struct dentry
*default_mgmt_key
;
496 #ifdef CONFIG_MAC80211_MESH
497 struct dentry
*mesh_stats_dir
;
499 struct dentry
*fwded_frames
;
500 struct dentry
*dropped_frames_ttl
;
501 struct dentry
*dropped_frames_no_route
;
502 struct dentry
*estab_plinks
;
503 struct timer_list mesh_path_timer
;
506 struct dentry
*mesh_config_dir
;
508 struct dentry
*dot11MeshRetryTimeout
;
509 struct dentry
*dot11MeshConfirmTimeout
;
510 struct dentry
*dot11MeshHoldingTimeout
;
511 struct dentry
*dot11MeshMaxRetries
;
512 struct dentry
*dot11MeshTTL
;
513 struct dentry
*auto_open_plinks
;
514 struct dentry
*dot11MeshMaxPeerLinks
;
515 struct dentry
*dot11MeshHWMPactivePathTimeout
;
516 struct dentry
*dot11MeshHWMPpreqMinInterval
;
517 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
518 struct dentry
*dot11MeshHWMPmaxPREQretries
;
519 struct dentry
*path_refresh_time
;
520 struct dentry
*min_discovery_timeout
;
525 /* must be last, dynamically sized area in this! */
526 struct ieee80211_vif vif
;
530 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
532 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
536 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data
*sdata
,
537 u8 mesh_id_len
, u8
*mesh_id
)
539 #ifdef CONFIG_MAC80211_MESH
540 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
541 ifmsh
->mesh_id_len
= mesh_id_len
;
542 memcpy(ifmsh
->mesh_id
, mesh_id
, mesh_id_len
);
549 IEEE80211_RX_MSG
= 1,
550 IEEE80211_TX_STATUS_MSG
= 2,
551 IEEE80211_DELBA_MSG
= 3,
552 IEEE80211_ADDBA_MSG
= 4,
555 enum queue_stop_reason
{
556 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
557 IEEE80211_QUEUE_STOP_REASON_PS
,
558 IEEE80211_QUEUE_STOP_REASON_CSA
561 /* maximum number of hardware queues we support. */
562 #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
564 struct ieee80211_master_priv
{
565 struct ieee80211_local
*local
;
568 struct ieee80211_local
{
569 /* embed the driver visible part.
570 * don't cast (use the static inlines below), but we keep
571 * it first anyway so they become a no-op */
572 struct ieee80211_hw hw
;
574 const struct ieee80211_ops
*ops
;
576 unsigned long queue_pool
[BITS_TO_LONGS(QD_MAX_QUEUES
)];
577 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
578 spinlock_t queue_stop_reason_lock
;
579 struct net_device
*mdev
; /* wmaster# - "master" 802.11 device */
581 int monitors
, cooked_mntrs
;
582 /* number of interfaces with corresponding FIF_ flags */
583 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
;
584 unsigned int filter_flags
; /* FIF_* */
585 struct iw_statistics wstats
;
587 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
588 int tx_headroom
; /* required headroom for hardware/radiotap */
590 /* Tasklet and skb queue to process calls from IRQ mode. All frames
591 * added to skb_queue will be processed, but frames in
592 * skb_queue_unreliable may be dropped if the total length of these
593 * queues increases over the limit. */
594 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
595 struct tasklet_struct tasklet
;
596 struct sk_buff_head skb_queue
;
597 struct sk_buff_head skb_queue_unreliable
;
601 * The lock only protects the list, hash, timer and counter
602 * against manipulation, reads are done in RCU. Additionally,
603 * the lock protects each BSS's TIM bitmap.
606 unsigned long num_sta
;
607 struct list_head sta_list
;
608 struct list_head sta_flush_list
;
609 struct work_struct sta_flush_work
;
610 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
611 struct timer_list sta_cleanup
;
613 unsigned long queues_pending
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
614 unsigned long queues_pending_run
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
615 struct ieee80211_tx_stored_packet pending_packet
[IEEE80211_MAX_QUEUES
];
616 struct tasklet_struct tx_pending_tasklet
;
618 /* number of interfaces with corresponding IFF_ flags */
619 atomic_t iff_allmultis
, iff_promiscs
;
621 struct rate_control_ref
*rate_ctrl
;
624 int fragmentation_threshold
;
626 struct crypto_blkcipher
*wep_tx_tfm
;
627 struct crypto_blkcipher
*wep_rx_tfm
;
630 struct list_head interfaces
;
633 * Key lock, protects sdata's key_list and sta_info's
634 * key pointers (write access, they're RCU.)
639 /* Scanning and BSS list */
640 bool sw_scanning
, hw_scanning
;
641 int scan_channel_idx
;
642 enum ieee80211_band scan_band
;
644 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
645 unsigned long last_scan_completed
;
646 struct delayed_work scan_work
;
647 struct ieee80211_sub_if_data
*scan_sdata
;
648 struct ieee80211_channel
*oper_channel
, *scan_channel
, *csa_channel
;
649 enum nl80211_channel_type oper_channel_type
;
650 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
651 size_t scan_ssid_len
;
652 struct list_head bss_list
;
653 struct ieee80211_bss
*bss_hash
[STA_HASH_SIZE
];
657 /* dot11CountersTable */
658 u32 dot11TransmittedFragmentCount
;
659 u32 dot11MulticastTransmittedFrameCount
;
660 u32 dot11FailedCount
;
662 u32 dot11MultipleRetryCount
;
663 u32 dot11FrameDuplicateCount
;
664 u32 dot11ReceivedFragmentCount
;
665 u32 dot11MulticastReceivedFrameCount
;
666 u32 dot11TransmittedFrameCount
;
668 #ifdef CONFIG_MAC80211_LEDS
669 int tx_led_counter
, rx_led_counter
;
670 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
671 char tx_led_name
[32], rx_led_name
[32],
672 assoc_led_name
[32], radio_led_name
[32];
675 #ifdef CONFIG_MAC80211_DEBUGFS
676 struct work_struct sta_debugfs_add
;
679 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
680 /* TX/RX handler statistics */
681 unsigned int tx_handlers_drop
;
682 unsigned int tx_handlers_queued
;
683 unsigned int tx_handlers_drop_unencrypted
;
684 unsigned int tx_handlers_drop_fragment
;
685 unsigned int tx_handlers_drop_wep
;
686 unsigned int tx_handlers_drop_not_assoc
;
687 unsigned int tx_handlers_drop_unauth_port
;
688 unsigned int rx_handlers_drop
;
689 unsigned int rx_handlers_queued
;
690 unsigned int rx_handlers_drop_nullfunc
;
691 unsigned int rx_handlers_drop_defrag
;
692 unsigned int rx_handlers_drop_short
;
693 unsigned int rx_handlers_drop_passive_scan
;
694 unsigned int tx_expand_skb_head
;
695 unsigned int tx_expand_skb_head_cloned
;
696 unsigned int rx_expand_skb_head
;
697 unsigned int rx_expand_skb_head2
;
698 unsigned int rx_handlers_fragments
;
699 unsigned int tx_status_drop
;
700 #define I802_DEBUG_INC(c) (c)++
701 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
702 #define I802_DEBUG_INC(c) do { } while (0)
703 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
706 int total_ps_buffered
; /* total number of all buffered unicast and
707 * multicast packets for power saving stations
709 int wifi_wme_noack_test
;
710 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
713 struct work_struct dynamic_ps_enable_work
;
714 struct work_struct dynamic_ps_disable_work
;
715 struct timer_list dynamic_ps_timer
;
717 int user_power_level
; /* in dBm */
718 int power_constr_level
; /* in dBm */
720 #ifdef CONFIG_MAC80211_DEBUGFS
721 struct local_debugfsdentries
{
722 struct dentry
*rcdir
;
723 struct dentry
*rcname
;
724 struct dentry
*frequency
;
725 struct dentry
*rts_threshold
;
726 struct dentry
*fragmentation_threshold
;
727 struct dentry
*short_retry_limit
;
728 struct dentry
*long_retry_limit
;
729 struct dentry
*total_ps_buffered
;
730 struct dentry
*wep_iv
;
731 struct dentry
*statistics
;
732 struct local_debugfsdentries_statsdentries
{
733 struct dentry
*transmitted_fragment_count
;
734 struct dentry
*multicast_transmitted_frame_count
;
735 struct dentry
*failed_count
;
736 struct dentry
*retry_count
;
737 struct dentry
*multiple_retry_count
;
738 struct dentry
*frame_duplicate_count
;
739 struct dentry
*received_fragment_count
;
740 struct dentry
*multicast_received_frame_count
;
741 struct dentry
*transmitted_frame_count
;
742 struct dentry
*wep_undecryptable_count
;
743 struct dentry
*num_scans
;
744 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
745 struct dentry
*tx_handlers_drop
;
746 struct dentry
*tx_handlers_queued
;
747 struct dentry
*tx_handlers_drop_unencrypted
;
748 struct dentry
*tx_handlers_drop_fragment
;
749 struct dentry
*tx_handlers_drop_wep
;
750 struct dentry
*tx_handlers_drop_not_assoc
;
751 struct dentry
*tx_handlers_drop_unauth_port
;
752 struct dentry
*rx_handlers_drop
;
753 struct dentry
*rx_handlers_queued
;
754 struct dentry
*rx_handlers_drop_nullfunc
;
755 struct dentry
*rx_handlers_drop_defrag
;
756 struct dentry
*rx_handlers_drop_short
;
757 struct dentry
*rx_handlers_drop_passive_scan
;
758 struct dentry
*tx_expand_skb_head
;
759 struct dentry
*tx_expand_skb_head_cloned
;
760 struct dentry
*rx_expand_skb_head
;
761 struct dentry
*rx_expand_skb_head2
;
762 struct dentry
*rx_handlers_fragments
;
763 struct dentry
*tx_status_drop
;
765 struct dentry
*dot11ACKFailureCount
;
766 struct dentry
*dot11RTSFailureCount
;
767 struct dentry
*dot11FCSErrorCount
;
768 struct dentry
*dot11RTSSuccessCount
;
770 struct dentry
*stations
;
776 static inline struct ieee80211_sub_if_data
*
777 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
779 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
781 BUG_ON(!local
|| local
->mdev
== dev
);
783 return netdev_priv(dev
);
786 /* this struct represents 802.11n's RA/TID combination */
787 struct ieee80211_ra_tid
{
792 /* Parsed Information Elements */
793 struct ieee802_11_elems
{
797 /* pointers to IEs */
812 struct ieee80211_ht_cap
*ht_cap_elem
;
813 struct ieee80211_ht_info
*ht_info_elem
;
823 u8
*quiet_elem
; /* first quite element */
826 /* length of them, respectively */
838 u8 ext_supp_rates_len
;
847 u8 ch_switch_elem_len
;
849 u8 pwr_constr_elem_len
;
851 u8 num_of_quiet_elem
; /* can be more the one */
852 u8 assoc_comeback_len
;
855 static inline struct ieee80211_local
*hw_to_local(
856 struct ieee80211_hw
*hw
)
858 return container_of(hw
, struct ieee80211_local
, hw
);
861 static inline struct ieee80211_hw
*local_to_hw(
862 struct ieee80211_local
*local
)
868 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
870 return compare_ether_addr(raddr
, addr
) == 0 ||
871 is_broadcast_ether_addr(raddr
);
875 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
876 int ieee80211_if_config(struct ieee80211_sub_if_data
*sdata
, u32 changed
);
877 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
878 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
880 void ieee80211_configure_filter(struct ieee80211_local
*local
);
882 /* wireless extensions */
883 extern const struct iw_handler_def ieee80211_iw_handler_def
;
886 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
887 void ieee80211_scan_work(struct work_struct
*work
);
888 void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
889 struct ieee80211_rx_status
*rx_status
);
890 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t len
);
891 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t *len
);
892 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data
*sdata
, u8
*bssid
);
893 void ieee80211_sta_req_auth(struct ieee80211_sub_if_data
*sdata
,
894 struct ieee80211_if_sta
*ifsta
);
895 struct sta_info
*ieee80211_ibss_add_sta(struct ieee80211_sub_if_data
*sdata
,
896 u8
*bssid
, u8
*addr
, u64 supp_rates
);
897 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
898 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
899 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
900 u64
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
901 struct ieee802_11_elems
*elems
,
902 enum ieee80211_band band
);
903 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
904 u8
*ssid
, size_t ssid_len
);
906 /* scan/BSS handling */
907 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
908 u8
*ssid
, size_t ssid_len
);
909 int ieee80211_scan_results(struct ieee80211_local
*local
,
910 struct iw_request_info
*info
,
911 char *buf
, size_t len
);
913 ieee80211_scan_rx(struct ieee80211_sub_if_data
*sdata
,
915 struct ieee80211_rx_status
*rx_status
);
916 void ieee80211_rx_bss_list_init(struct ieee80211_local
*local
);
917 void ieee80211_rx_bss_list_deinit(struct ieee80211_local
*local
);
918 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data
*sdata
,
919 char *ie
, size_t len
);
921 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
922 int ieee80211_start_scan(struct ieee80211_sub_if_data
*scan_sdata
,
923 u8
*ssid
, size_t ssid_len
);
924 struct ieee80211_bss
*
925 ieee80211_bss_info_update(struct ieee80211_local
*local
,
926 struct ieee80211_rx_status
*rx_status
,
927 struct ieee80211_mgmt
*mgmt
,
929 struct ieee802_11_elems
*elems
,
930 int freq
, bool beacon
);
931 struct ieee80211_bss
*
932 ieee80211_rx_bss_add(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
933 u8
*ssid
, u8 ssid_len
);
934 struct ieee80211_bss
*
935 ieee80211_rx_bss_get(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
936 u8
*ssid
, u8 ssid_len
);
937 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
938 struct ieee80211_bss
*bss
);
940 /* interface handling */
941 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
942 struct net_device
**new_dev
, enum nl80211_iftype type
,
943 struct vif_params
*params
);
944 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
945 enum nl80211_iftype type
);
946 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
947 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
950 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
951 void ieee80211_tx_pending(unsigned long data
);
952 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
953 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
954 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
957 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band
*sband
,
958 struct ieee80211_ht_cap
*ht_cap_ie
,
959 struct ieee80211_sta_ht_cap
*ht_cap
);
960 u32
ieee80211_enable_ht(struct ieee80211_sub_if_data
*sdata
,
961 struct ieee80211_ht_info
*hti
,
962 u16 ap_ht_cap_flags
);
963 void ieee80211_send_bar(struct ieee80211_sub_if_data
*sdata
, u8
*ra
, u16 tid
, u16 ssn
);
965 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data
*sdata
, u8
*da
,
966 u16 tid
, u16 initiator
, u16 reason
);
967 void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data
*sdata
, u8
*addr
);
968 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
969 struct sta_info
*sta
,
970 struct ieee80211_mgmt
*mgmt
, size_t len
);
971 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
972 struct sta_info
*sta
,
973 struct ieee80211_mgmt
*mgmt
,
975 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
976 struct sta_info
*sta
,
977 struct ieee80211_mgmt
*mgmt
,
980 /* Spectrum management */
981 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
982 struct ieee80211_mgmt
*mgmt
,
984 void ieee80211_chswitch_timer(unsigned long data
);
985 void ieee80211_chswitch_work(struct work_struct
*work
);
986 void ieee80211_process_chanswitch(struct ieee80211_sub_if_data
*sdata
,
987 struct ieee80211_channel_sw_ie
*sw_elem
,
988 struct ieee80211_bss
*bss
);
989 void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data
*sdata
,
990 u16 capab_info
, u8
*pwr_constr_elem
,
991 u8 pwr_constr_elem_len
);
993 /* utility functions/constants */
994 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
995 extern const unsigned char rfc1042_header
[6];
996 extern const unsigned char bridge_tunnel_header
[6];
997 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
998 enum nl80211_iftype type
);
999 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
1000 int rate
, int erp
, int short_preamble
);
1001 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1002 struct ieee80211_hdr
*hdr
);
1003 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
);
1004 void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1006 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1007 struct ieee802_11_elems
*elems
);
1008 int ieee80211_set_freq(struct ieee80211_sub_if_data
*sdata
, int freq
);
1009 u64
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1010 enum ieee80211_band band
);
1012 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1013 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1014 void ieee80211_dynamic_ps_timer(unsigned long data
);
1015 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1016 struct ieee80211_sub_if_data
*sdata
,
1019 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1020 enum queue_stop_reason reason
);
1021 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1022 enum queue_stop_reason reason
);
1024 #ifdef CONFIG_MAC80211_NOINLINE
1025 #define debug_noinline noinline
1027 #define debug_noinline
1030 #endif /* IEEE80211_I_H */