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 */
234 struct ieee80211_if_wds
{
235 struct sta_info
*sta
;
236 u8 remote_addr
[ETH_ALEN
];
239 struct ieee80211_if_vlan
{
240 struct list_head list
;
244 __u32 fwded_frames
; /* Mesh forwarded frames */
245 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
246 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
247 atomic_t estab_plinks
;
250 #define PREQ_Q_F_START 0x1
251 #define PREQ_Q_F_REFRESH 0x2
252 struct mesh_preq_queue
{
253 struct list_head list
;
260 /* Mesh plink management parameters */
261 u16 dot11MeshRetryTimeout
;
262 u16 dot11MeshConfirmTimeout
;
263 u16 dot11MeshHoldingTimeout
;
264 u16 dot11MeshMaxPeerLinks
;
265 u8 dot11MeshMaxRetries
;
267 bool auto_open_plinks
;
268 /* HWMP parameters */
269 u8 dot11MeshHWMPmaxPREQretries
;
270 u32 path_refresh_time
;
271 u16 min_discovery_timeout
;
272 u32 dot11MeshHWMPactivePathTimeout
;
273 u16 dot11MeshHWMPpreqMinInterval
;
274 u16 dot11MeshHWMPnetDiameterTraversalTime
;
278 /* flags used in struct ieee80211_if_sta.flags */
279 #define IEEE80211_STA_SSID_SET BIT(0)
280 #define IEEE80211_STA_BSSID_SET BIT(1)
281 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
282 #define IEEE80211_STA_AUTHENTICATED BIT(3)
283 #define IEEE80211_STA_ASSOCIATED BIT(4)
284 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
285 #define IEEE80211_STA_CREATE_IBSS BIT(6)
286 #define IEEE80211_STA_MIXED_CELL BIT(7)
287 #define IEEE80211_STA_WMM_ENABLED BIT(8)
288 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
289 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
290 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
291 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
292 /* flags for MLME request */
293 #define IEEE80211_STA_REQ_SCAN 0
294 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
295 #define IEEE80211_STA_REQ_AUTH 2
296 #define IEEE80211_STA_REQ_RUN 3
298 /* STA/IBSS MLME states */
299 enum ieee80211_sta_mlme_state
{
300 IEEE80211_STA_MLME_DISABLED
,
301 IEEE80211_STA_MLME_DIRECT_PROBE
,
302 IEEE80211_STA_MLME_AUTHENTICATE
,
303 IEEE80211_STA_MLME_ASSOCIATE
,
304 IEEE80211_STA_MLME_ASSOCIATED
,
305 IEEE80211_STA_MLME_IBSS_SEARCH
,
306 IEEE80211_STA_MLME_IBSS_JOINED
,
309 /* bitfield of allowed auth algs */
310 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
311 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
312 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
314 struct ieee80211_if_sta
{
315 struct timer_list timer
;
316 struct work_struct work
;
317 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
318 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
319 enum ieee80211_sta_mlme_state state
;
321 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
322 size_t scan_ssid_len
;
325 u8
*extra_ie
; /* to be added to the end of AssocReq */
328 /* The last AssocReq/Resp IEs */
329 u8
*assocreq_ies
, *assocresp_ies
;
330 size_t assocreq_ies_len
, assocresp_ies_len
;
332 struct sk_buff_head skb_queue
;
334 int assoc_scan_tries
; /* number of scans done pre-association */
335 int direct_probe_tries
; /* retries for direct probes */
336 int auth_tries
; /* retries for auth req */
337 int assoc_tries
; /* retries for assoc req */
339 unsigned long request
;
341 unsigned long last_probe
;
345 unsigned int auth_algs
; /* bitfield of allowed auth algs */
346 int auth_alg
; /* currently used IEEE 802.11 authentication algorithm */
347 int auth_transaction
;
349 unsigned long ibss_join_req
;
350 struct sk_buff
*probe_resp
; /* ProbeResp template for IBSS */
351 u32 supp_rates_bits
[IEEE80211_NUM_BANDS
];
353 int wmm_last_param_set
;
356 struct ieee80211_if_mesh
{
357 struct work_struct work
;
358 struct timer_list housekeeping_timer
;
359 struct timer_list mesh_path_timer
;
360 struct sk_buff_head skb_queue
;
364 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
366 /* Active Path Selection Protocol Identifier */
368 /* Active Path Selection Metric Identifier */
370 /* Congestion Control Mode Identifier */
372 /* Local mesh Destination Sequence Number */
374 /* Last used PREQ ID */
377 /* Timestamp of last DSN update */
378 unsigned long last_dsn_update
;
379 /* Timestamp of last DSN sent */
380 unsigned long last_preq
;
381 struct mesh_rmc
*rmc
;
382 spinlock_t mesh_preq_queue_lock
;
383 struct mesh_preq_queue preq_queue
;
385 struct mesh_stats mshstats
;
386 struct mesh_config mshcfg
;
388 bool accepting_plinks
;
391 #ifdef CONFIG_MAC80211_MESH
392 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
393 do { (msh)->mshstats.name++; } while (0)
395 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
400 * enum ieee80211_sub_if_data_flags - virtual interface flags
402 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
403 * @IEEE80211_SDATA_PROMISC: interface is promisc
404 * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
405 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
406 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
407 * associated stations and deliver multicast frames both
408 * back to wireless media and to the local net stack.
410 enum ieee80211_sub_if_data_flags
{
411 IEEE80211_SDATA_ALLMULTI
= BIT(0),
412 IEEE80211_SDATA_PROMISC
= BIT(1),
413 IEEE80211_SDATA_USERSPACE_MLME
= BIT(2),
414 IEEE80211_SDATA_OPERATING_GMODE
= BIT(3),
415 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(4),
418 struct ieee80211_sub_if_data
{
419 struct list_head list
;
421 struct wireless_dev wdev
;
424 struct list_head key_list
;
426 struct net_device
*dev
;
427 struct ieee80211_local
*local
;
431 int drop_unencrypted
;
433 /* Fragment table for host-based reassembly */
434 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
435 unsigned int fragment_next
;
437 #define NUM_DEFAULT_KEYS 4
438 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
];
439 struct ieee80211_key
*default_key
;
444 * AP this belongs to: self in AP mode and
445 * corresponding AP in VLAN mode, NULL for
446 * all others (might be needed later in IBSS)
448 struct ieee80211_if_ap
*bss
;
450 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
451 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
454 struct ieee80211_if_ap ap
;
455 struct ieee80211_if_wds wds
;
456 struct ieee80211_if_vlan vlan
;
457 struct ieee80211_if_sta sta
;
458 #ifdef CONFIG_MAC80211_MESH
459 struct ieee80211_if_mesh mesh
;
464 #ifdef CONFIG_MAC80211_DEBUGFS
465 struct dentry
*debugfsdir
;
468 struct dentry
*drop_unencrypted
;
469 struct dentry
*state
;
470 struct dentry
*bssid
;
471 struct dentry
*prev_bssid
;
472 struct dentry
*ssid_len
;
474 struct dentry
*ap_capab
;
475 struct dentry
*capab
;
476 struct dentry
*extra_ie_len
;
477 struct dentry
*auth_tries
;
478 struct dentry
*assoc_tries
;
479 struct dentry
*auth_algs
;
480 struct dentry
*auth_alg
;
481 struct dentry
*auth_transaction
;
482 struct dentry
*flags
;
483 struct dentry
*force_unicast_rateidx
;
484 struct dentry
*max_ratectrl_rateidx
;
487 struct dentry
*drop_unencrypted
;
488 struct dentry
*num_sta_ps
;
489 struct dentry
*dtim_count
;
490 struct dentry
*force_unicast_rateidx
;
491 struct dentry
*max_ratectrl_rateidx
;
492 struct dentry
*num_buffered_multicast
;
495 struct dentry
*drop_unencrypted
;
497 struct dentry
*force_unicast_rateidx
;
498 struct dentry
*max_ratectrl_rateidx
;
501 struct dentry
*drop_unencrypted
;
502 struct dentry
*force_unicast_rateidx
;
503 struct dentry
*max_ratectrl_rateidx
;
510 struct dentry
*default_key
;
513 #ifdef CONFIG_MAC80211_MESH
514 struct dentry
*mesh_stats_dir
;
516 struct dentry
*fwded_frames
;
517 struct dentry
*dropped_frames_ttl
;
518 struct dentry
*dropped_frames_no_route
;
519 struct dentry
*estab_plinks
;
520 struct timer_list mesh_path_timer
;
523 struct dentry
*mesh_config_dir
;
525 struct dentry
*dot11MeshRetryTimeout
;
526 struct dentry
*dot11MeshConfirmTimeout
;
527 struct dentry
*dot11MeshHoldingTimeout
;
528 struct dentry
*dot11MeshMaxRetries
;
529 struct dentry
*dot11MeshTTL
;
530 struct dentry
*auto_open_plinks
;
531 struct dentry
*dot11MeshMaxPeerLinks
;
532 struct dentry
*dot11MeshHWMPactivePathTimeout
;
533 struct dentry
*dot11MeshHWMPpreqMinInterval
;
534 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
535 struct dentry
*dot11MeshHWMPmaxPREQretries
;
536 struct dentry
*path_refresh_time
;
537 struct dentry
*min_discovery_timeout
;
542 /* must be last, dynamically sized area in this! */
543 struct ieee80211_vif vif
;
547 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
549 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
553 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data
*sdata
,
554 u8 mesh_id_len
, u8
*mesh_id
)
556 #ifdef CONFIG_MAC80211_MESH
557 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
558 ifmsh
->mesh_id_len
= mesh_id_len
;
559 memcpy(ifmsh
->mesh_id
, mesh_id
, mesh_id_len
);
566 IEEE80211_RX_MSG
= 1,
567 IEEE80211_TX_STATUS_MSG
= 2,
568 IEEE80211_DELBA_MSG
= 3,
569 IEEE80211_ADDBA_MSG
= 4,
572 /* maximum number of hardware queues we support. */
573 #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
575 struct ieee80211_master_priv
{
576 struct ieee80211_local
*local
;
579 struct ieee80211_local
{
580 /* embed the driver visible part.
581 * don't cast (use the static inlines below), but we keep
582 * it first anyway so they become a no-op */
583 struct ieee80211_hw hw
;
585 const struct ieee80211_ops
*ops
;
587 unsigned long queue_pool
[BITS_TO_LONGS(QD_MAX_QUEUES
)];
589 struct net_device
*mdev
; /* wmaster# - "master" 802.11 device */
591 int monitors
, cooked_mntrs
;
592 /* number of interfaces with corresponding FIF_ flags */
593 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
;
594 unsigned int filter_flags
; /* FIF_* */
595 struct iw_statistics wstats
;
597 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
598 int tx_headroom
; /* required headroom for hardware/radiotap */
600 /* Tasklet and skb queue to process calls from IRQ mode. All frames
601 * added to skb_queue will be processed, but frames in
602 * skb_queue_unreliable may be dropped if the total length of these
603 * queues increases over the limit. */
604 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
605 struct tasklet_struct tasklet
;
606 struct sk_buff_head skb_queue
;
607 struct sk_buff_head skb_queue_unreliable
;
611 * The lock only protects the list, hash, timer and counter
612 * against manipulation, reads are done in RCU. Additionally,
613 * the lock protects each BSS's TIM bitmap.
616 unsigned long num_sta
;
617 struct list_head sta_list
;
618 struct list_head sta_flush_list
;
619 struct work_struct sta_flush_work
;
620 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
621 struct timer_list sta_cleanup
;
623 unsigned long queues_pending
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
624 unsigned long queues_pending_run
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
625 struct ieee80211_tx_stored_packet pending_packet
[IEEE80211_MAX_QUEUES
];
626 struct tasklet_struct tx_pending_tasklet
;
628 /* number of interfaces with corresponding IFF_ flags */
629 atomic_t iff_allmultis
, iff_promiscs
;
631 struct rate_control_ref
*rate_ctrl
;
634 int fragmentation_threshold
;
636 struct crypto_blkcipher
*wep_tx_tfm
;
637 struct crypto_blkcipher
*wep_rx_tfm
;
640 struct list_head interfaces
;
643 * Key lock, protects sdata's key_list and sta_info's
644 * key pointers (write access, they're RCU.)
649 /* Scanning and BSS list */
650 bool sw_scanning
, hw_scanning
;
651 int scan_channel_idx
;
652 enum ieee80211_band scan_band
;
654 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
655 unsigned long last_scan_completed
;
656 struct delayed_work scan_work
;
657 struct ieee80211_sub_if_data
*scan_sdata
;
658 struct ieee80211_channel
*oper_channel
, *scan_channel
;
659 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
660 size_t scan_ssid_len
;
661 struct list_head bss_list
;
662 struct ieee80211_bss
*bss_hash
[STA_HASH_SIZE
];
666 /* dot11CountersTable */
667 u32 dot11TransmittedFragmentCount
;
668 u32 dot11MulticastTransmittedFrameCount
;
669 u32 dot11FailedCount
;
671 u32 dot11MultipleRetryCount
;
672 u32 dot11FrameDuplicateCount
;
673 u32 dot11ReceivedFragmentCount
;
674 u32 dot11MulticastReceivedFrameCount
;
675 u32 dot11TransmittedFrameCount
;
676 u32 dot11WEPUndecryptableCount
;
678 #ifdef CONFIG_MAC80211_LEDS
679 int tx_led_counter
, rx_led_counter
;
680 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
681 char tx_led_name
[32], rx_led_name
[32],
682 assoc_led_name
[32], radio_led_name
[32];
685 #ifdef CONFIG_MAC80211_DEBUGFS
686 struct work_struct sta_debugfs_add
;
689 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
690 /* TX/RX handler statistics */
691 unsigned int tx_handlers_drop
;
692 unsigned int tx_handlers_queued
;
693 unsigned int tx_handlers_drop_unencrypted
;
694 unsigned int tx_handlers_drop_fragment
;
695 unsigned int tx_handlers_drop_wep
;
696 unsigned int tx_handlers_drop_not_assoc
;
697 unsigned int tx_handlers_drop_unauth_port
;
698 unsigned int rx_handlers_drop
;
699 unsigned int rx_handlers_queued
;
700 unsigned int rx_handlers_drop_nullfunc
;
701 unsigned int rx_handlers_drop_defrag
;
702 unsigned int rx_handlers_drop_short
;
703 unsigned int rx_handlers_drop_passive_scan
;
704 unsigned int tx_expand_skb_head
;
705 unsigned int tx_expand_skb_head_cloned
;
706 unsigned int rx_expand_skb_head
;
707 unsigned int rx_expand_skb_head2
;
708 unsigned int rx_handlers_fragments
;
709 unsigned int tx_status_drop
;
710 #define I802_DEBUG_INC(c) (c)++
711 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
712 #define I802_DEBUG_INC(c) do { } while (0)
713 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
716 int total_ps_buffered
; /* total number of all buffered unicast and
717 * multicast packets for power saving stations
719 int wifi_wme_noack_test
;
720 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
722 #ifdef CONFIG_MAC80211_DEBUGFS
723 struct local_debugfsdentries
{
724 struct dentry
*rcdir
;
725 struct dentry
*rcname
;
726 struct dentry
*frequency
;
727 struct dentry
*rts_threshold
;
728 struct dentry
*fragmentation_threshold
;
729 struct dentry
*short_retry_limit
;
730 struct dentry
*long_retry_limit
;
731 struct dentry
*total_ps_buffered
;
732 struct dentry
*wep_iv
;
733 struct dentry
*statistics
;
734 struct local_debugfsdentries_statsdentries
{
735 struct dentry
*transmitted_fragment_count
;
736 struct dentry
*multicast_transmitted_frame_count
;
737 struct dentry
*failed_count
;
738 struct dentry
*retry_count
;
739 struct dentry
*multiple_retry_count
;
740 struct dentry
*frame_duplicate_count
;
741 struct dentry
*received_fragment_count
;
742 struct dentry
*multicast_received_frame_count
;
743 struct dentry
*transmitted_frame_count
;
744 struct dentry
*wep_undecryptable_count
;
745 struct dentry
*num_scans
;
746 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
747 struct dentry
*tx_handlers_drop
;
748 struct dentry
*tx_handlers_queued
;
749 struct dentry
*tx_handlers_drop_unencrypted
;
750 struct dentry
*tx_handlers_drop_fragment
;
751 struct dentry
*tx_handlers_drop_wep
;
752 struct dentry
*tx_handlers_drop_not_assoc
;
753 struct dentry
*tx_handlers_drop_unauth_port
;
754 struct dentry
*rx_handlers_drop
;
755 struct dentry
*rx_handlers_queued
;
756 struct dentry
*rx_handlers_drop_nullfunc
;
757 struct dentry
*rx_handlers_drop_defrag
;
758 struct dentry
*rx_handlers_drop_short
;
759 struct dentry
*rx_handlers_drop_passive_scan
;
760 struct dentry
*tx_expand_skb_head
;
761 struct dentry
*tx_expand_skb_head_cloned
;
762 struct dentry
*rx_expand_skb_head
;
763 struct dentry
*rx_expand_skb_head2
;
764 struct dentry
*rx_handlers_fragments
;
765 struct dentry
*tx_status_drop
;
767 struct dentry
*dot11ACKFailureCount
;
768 struct dentry
*dot11RTSFailureCount
;
769 struct dentry
*dot11FCSErrorCount
;
770 struct dentry
*dot11RTSSuccessCount
;
772 struct dentry
*stations
;
778 static inline struct ieee80211_sub_if_data
*
779 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
781 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
783 BUG_ON(!local
|| local
->mdev
== dev
);
785 return netdev_priv(dev
);
788 /* this struct represents 802.11n's RA/TID combination */
789 struct ieee80211_ra_tid
{
794 /* Parsed Information Elements */
795 struct ieee802_11_elems
{
799 /* pointers to IEs */
814 struct ieee80211_ht_cap
*ht_cap_elem
;
815 struct ieee80211_ht_info
*ht_info_elem
;
825 u8
*quiet_elem
; /* first quite element */
827 /* length of them, respectively */
839 u8 ext_supp_rates_len
;
848 u8 ch_switch_elem_len
;
850 u8 pwr_constr_elem_len
;
852 u8 num_of_quiet_elem
; /* can be more the one */
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 struct sk_buff
*skb
, u8
*bssid
,
897 u8
*addr
, u64 supp_rates
);
898 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
899 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
900 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
901 u64
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
902 struct ieee802_11_elems
*elems
,
903 enum ieee80211_band band
);
904 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
905 u8
*ssid
, size_t ssid_len
);
907 /* scan/BSS handling */
908 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
909 u8
*ssid
, size_t ssid_len
);
910 int ieee80211_scan_results(struct ieee80211_local
*local
,
911 struct iw_request_info
*info
,
912 char *buf
, size_t len
);
914 ieee80211_scan_rx(struct ieee80211_sub_if_data
*sdata
,
916 struct ieee80211_rx_status
*rx_status
);
917 void ieee80211_rx_bss_list_init(struct ieee80211_local
*local
);
918 void ieee80211_rx_bss_list_deinit(struct ieee80211_local
*local
);
919 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data
*sdata
,
920 char *ie
, size_t len
);
922 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
923 int ieee80211_start_scan(struct ieee80211_sub_if_data
*scan_sdata
,
924 u8
*ssid
, size_t ssid_len
);
925 struct ieee80211_bss
*
926 ieee80211_bss_info_update(struct ieee80211_local
*local
,
927 struct ieee80211_rx_status
*rx_status
,
928 struct ieee80211_mgmt
*mgmt
,
930 struct ieee802_11_elems
*elems
,
931 int freq
, bool beacon
);
932 struct ieee80211_bss
*
933 ieee80211_rx_bss_add(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
934 u8
*ssid
, u8 ssid_len
);
935 struct ieee80211_bss
*
936 ieee80211_rx_bss_get(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
937 u8
*ssid
, u8 ssid_len
);
938 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
939 struct ieee80211_bss
*bss
);
941 /* interface handling */
942 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
943 struct net_device
**new_dev
, enum nl80211_iftype type
,
944 struct vif_params
*params
);
945 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
946 enum nl80211_iftype type
);
947 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
948 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
951 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
952 void ieee80211_tx_pending(unsigned long data
);
953 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
954 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
955 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
958 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band
*sband
,
959 struct ieee80211_ht_cap
*ht_cap_ie
,
960 struct ieee80211_sta_ht_cap
*ht_cap
);
961 u32
ieee80211_enable_ht(struct ieee80211_sub_if_data
*sdata
,
962 struct ieee80211_ht_info
*hti
,
963 u16 ap_ht_cap_flags
);
964 void ieee80211_send_bar(struct ieee80211_sub_if_data
*sdata
, u8
*ra
, u16 tid
, u16 ssn
);
966 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data
*sdata
, u8
*da
,
967 u16 tid
, u16 initiator
, u16 reason
);
968 void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data
*sdata
, u8
*addr
);
969 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
970 struct sta_info
*sta
,
971 struct ieee80211_mgmt
*mgmt
, size_t len
);
972 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
973 struct sta_info
*sta
,
974 struct ieee80211_mgmt
*mgmt
,
976 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
977 struct sta_info
*sta
,
978 struct ieee80211_mgmt
*mgmt
,
981 /* Spectrum management */
982 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
983 struct ieee80211_mgmt
*mgmt
,
986 /* utility functions/constants */
987 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
988 extern const unsigned char rfc1042_header
[6];
989 extern const unsigned char bridge_tunnel_header
[6];
990 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
991 enum nl80211_iftype type
);
992 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
993 int rate
, int erp
, int short_preamble
);
994 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
995 struct ieee80211_hdr
*hdr
);
996 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
);
997 void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
999 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1000 struct ieee802_11_elems
*elems
);
1001 int ieee80211_set_freq(struct ieee80211_sub_if_data
*sdata
, int freq
);
1002 u64
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1003 enum ieee80211_band band
);
1005 #ifdef CONFIG_MAC80211_NOINLINE
1006 #define debug_noinline noinline
1008 #define debug_noinline
1011 #endif /* IEEE80211_I_H */