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/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 18
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 #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
61 struct ieee80211_fragment_entry
{
62 unsigned long first_frag_time
;
64 unsigned int rx_queue
;
65 unsigned int last_frag
;
66 unsigned int extra_len
;
67 struct sk_buff_head skb_list
;
68 int ccmp
; /* Whether fragments were encrypted with CCMP */
69 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
73 struct ieee80211_bss
{
74 /* Yes, this is a hack */
75 struct cfg80211_bss cbss
;
77 /* don't want to look up all the time */
79 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
85 unsigned long last_probe_resp
;
87 #ifdef CONFIG_MAC80211_MESH
93 #define IEEE80211_MAX_SUPP_RATES 32
94 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
95 size_t supp_rates_len
;
98 * During assocation, we save an ERP value from a probe response so
99 * that we can feed ERP info to the driver when handling the
100 * association completes. these fields probably won't be up-to-date
101 * otherwise, you probably don't want to use them.
107 static inline u8
*bss_mesh_cfg(struct ieee80211_bss
*bss
)
109 #ifdef CONFIG_MAC80211_MESH
110 return bss
->mesh_cfg
;
115 static inline u8
*bss_mesh_id(struct ieee80211_bss
*bss
)
117 #ifdef CONFIG_MAC80211_MESH
123 static inline u8
bss_mesh_id_len(struct ieee80211_bss
*bss
)
125 #ifdef CONFIG_MAC80211_MESH
126 return bss
->mesh_id_len
;
132 typedef unsigned __bitwise__ ieee80211_tx_result
;
133 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
134 #define TX_DROP ((__force ieee80211_tx_result) 1u)
135 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
137 #define IEEE80211_TX_FRAGMENTED BIT(0)
138 #define IEEE80211_TX_UNICAST BIT(1)
139 #define IEEE80211_TX_PS_BUFFERED BIT(2)
141 struct ieee80211_tx_data
{
143 struct net_device
*dev
;
144 struct ieee80211_local
*local
;
145 struct ieee80211_sub_if_data
*sdata
;
146 struct sta_info
*sta
;
147 struct ieee80211_key
*key
;
149 struct ieee80211_channel
*channel
;
156 typedef unsigned __bitwise__ ieee80211_rx_result
;
157 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
158 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
159 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
160 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
162 #define IEEE80211_RX_IN_SCAN BIT(0)
163 /* frame is destined to interface currently processed (incl. multicast frames) */
164 #define IEEE80211_RX_RA_MATCH BIT(1)
165 #define IEEE80211_RX_AMSDU BIT(2)
166 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
167 #define IEEE80211_RX_FRAGMENTED BIT(4)
169 struct ieee80211_rx_data
{
171 struct net_device
*dev
;
172 struct ieee80211_local
*local
;
173 struct ieee80211_sub_if_data
*sdata
;
174 struct sta_info
*sta
;
175 struct ieee80211_key
*key
;
176 struct ieee80211_rx_status
*status
;
177 struct ieee80211_rate
*rate
;
180 int sent_ps_buffered
;
188 int head_len
, tail_len
;
192 struct ieee80211_if_ap
{
193 struct beacon_data
*beacon
;
195 struct list_head vlans
;
197 /* yes, this looks ugly, but guarantees that we can later use
199 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
200 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
201 struct sk_buff_head ps_bc_buf
;
202 atomic_t num_sta_ps
; /* number of stations in PS mode */
206 struct ieee80211_if_wds
{
207 struct sta_info
*sta
;
208 u8 remote_addr
[ETH_ALEN
];
211 struct ieee80211_if_vlan
{
212 struct list_head list
;
216 __u32 fwded_frames
; /* Mesh forwarded frames */
217 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
218 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
219 atomic_t estab_plinks
;
222 #define PREQ_Q_F_START 0x1
223 #define PREQ_Q_F_REFRESH 0x2
224 struct mesh_preq_queue
{
225 struct list_head list
;
230 enum ieee80211_mgd_state
{
231 IEEE80211_MGD_STATE_IDLE
,
232 IEEE80211_MGD_STATE_PROBE
,
233 IEEE80211_MGD_STATE_AUTH
,
234 IEEE80211_MGD_STATE_ASSOC
,
237 struct ieee80211_mgd_work
{
238 struct list_head list
;
239 struct ieee80211_bss
*bss
;
241 u8 prev_bssid
[ETH_ALEN
];
242 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
244 unsigned long timeout
;
245 enum ieee80211_mgd_state state
;
246 u16 auth_alg
, auth_transaction
;
251 u8 ie
[0]; /* for auth or assoc frame, not probe */
254 /* flags used in struct ieee80211_if_managed.flags */
255 enum ieee80211_sta_flags
{
256 IEEE80211_STA_PROBEREQ_POLL
= BIT(3),
257 IEEE80211_STA_CONTROL_PORT
= BIT(4),
258 IEEE80211_STA_WMM_ENABLED
= BIT(5),
259 IEEE80211_STA_DISABLE_11N
= BIT(6),
260 IEEE80211_STA_CSA_RECEIVED
= BIT(7),
261 IEEE80211_STA_MFP_ENABLED
= BIT(8),
264 /* flags for MLME request */
265 enum ieee80211_sta_request
{
266 IEEE80211_STA_REQ_SCAN
,
269 struct ieee80211_if_managed
{
270 struct timer_list timer
;
271 struct timer_list chswitch_timer
;
272 struct work_struct work
;
273 struct work_struct chswitch_work
;
274 struct work_struct beacon_loss_work
;
277 struct ieee80211_bss
*associated
;
278 struct list_head work_list
;
285 struct sk_buff_head skb_queue
;
287 unsigned long timers_running
; /* used for quiesce/restart */
288 bool powersave
; /* powersave requested for this iface */
290 unsigned long request
;
292 unsigned long last_beacon
;
299 IEEE80211_MFP_DISABLED
,
300 IEEE80211_MFP_OPTIONAL
,
301 IEEE80211_MFP_REQUIRED
302 } mfp
; /* management frame protection */
304 int wmm_last_param_set
;
307 enum ieee80211_ibss_request
{
308 IEEE80211_IBSS_REQ_RUN
= 0,
311 struct ieee80211_if_ibss
{
312 struct timer_list timer
;
313 struct work_struct work
;
315 struct sk_buff_head skb_queue
;
317 unsigned long request
;
318 unsigned long last_scan_completed
;
326 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
329 struct ieee80211_channel
*channel
;
331 unsigned long ibss_join_req
;
332 /* probe response/beacon for IBSS */
333 struct sk_buff
*presp
, *skb
;
336 IEEE80211_IBSS_MLME_SEARCH
,
337 IEEE80211_IBSS_MLME_JOINED
,
341 struct ieee80211_if_mesh
{
342 struct work_struct work
;
343 struct timer_list housekeeping_timer
;
344 struct timer_list mesh_path_timer
;
345 struct sk_buff_head skb_queue
;
347 unsigned long timers_running
;
351 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
353 /* Active Path Selection Protocol Identifier */
355 /* Active Path Selection Metric Identifier */
357 /* Congestion Control Mode Identifier */
359 /* Local mesh Destination Sequence Number */
361 /* Last used PREQ ID */
364 /* Timestamp of last DSN update */
365 unsigned long last_dsn_update
;
366 /* Timestamp of last DSN sent */
367 unsigned long last_preq
;
368 struct mesh_rmc
*rmc
;
369 spinlock_t mesh_preq_queue_lock
;
370 struct mesh_preq_queue preq_queue
;
372 struct mesh_stats mshstats
;
373 struct mesh_config mshcfg
;
375 bool accepting_plinks
;
378 #ifdef CONFIG_MAC80211_MESH
379 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
380 do { (msh)->mshstats.name++; } while (0)
382 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
387 * enum ieee80211_sub_if_data_flags - virtual interface flags
389 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
390 * @IEEE80211_SDATA_PROMISC: interface is promisc
391 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
392 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
393 * associated stations and deliver multicast frames both
394 * back to wireless media and to the local net stack.
396 enum ieee80211_sub_if_data_flags
{
397 IEEE80211_SDATA_ALLMULTI
= BIT(0),
398 IEEE80211_SDATA_PROMISC
= BIT(1),
399 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
400 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
403 struct ieee80211_sub_if_data
{
404 struct list_head list
;
406 struct wireless_dev wdev
;
409 struct list_head key_list
;
411 struct net_device
*dev
;
412 struct ieee80211_local
*local
;
416 int drop_unencrypted
;
419 * keep track of whether the HT opmode (stored in
420 * vif.bss_info.ht_operation_mode) is valid.
422 bool ht_opmode_valid
;
424 /* Fragment table for host-based reassembly */
425 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
426 unsigned int fragment_next
;
428 #define NUM_DEFAULT_KEYS 4
429 #define NUM_DEFAULT_MGMT_KEYS 2
430 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
431 struct ieee80211_key
*default_key
;
432 struct ieee80211_key
*default_mgmt_key
;
437 * AP this belongs to: self in AP mode and
438 * corresponding AP in VLAN mode, NULL for
439 * all others (might be needed later in IBSS)
441 struct ieee80211_if_ap
*bss
;
443 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
444 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
447 struct ieee80211_if_ap ap
;
448 struct ieee80211_if_wds wds
;
449 struct ieee80211_if_vlan vlan
;
450 struct ieee80211_if_managed mgd
;
451 struct ieee80211_if_ibss ibss
;
452 #ifdef CONFIG_MAC80211_MESH
453 struct ieee80211_if_mesh mesh
;
458 #ifdef CONFIG_MAC80211_DEBUGFS
459 struct dentry
*debugfsdir
;
462 struct dentry
*drop_unencrypted
;
463 struct dentry
*bssid
;
465 struct dentry
*capab
;
466 struct dentry
*force_unicast_rateidx
;
467 struct dentry
*max_ratectrl_rateidx
;
470 struct dentry
*drop_unencrypted
;
471 struct dentry
*num_sta_ps
;
472 struct dentry
*dtim_count
;
473 struct dentry
*force_unicast_rateidx
;
474 struct dentry
*max_ratectrl_rateidx
;
475 struct dentry
*num_buffered_multicast
;
478 struct dentry
*drop_unencrypted
;
480 struct dentry
*force_unicast_rateidx
;
481 struct dentry
*max_ratectrl_rateidx
;
484 struct dentry
*drop_unencrypted
;
485 struct dentry
*force_unicast_rateidx
;
486 struct dentry
*max_ratectrl_rateidx
;
493 struct dentry
*default_key
;
494 struct dentry
*default_mgmt_key
;
497 #ifdef CONFIG_MAC80211_MESH
498 struct dentry
*mesh_stats_dir
;
500 struct dentry
*fwded_frames
;
501 struct dentry
*dropped_frames_ttl
;
502 struct dentry
*dropped_frames_no_route
;
503 struct dentry
*estab_plinks
;
504 struct timer_list mesh_path_timer
;
507 struct dentry
*mesh_config_dir
;
509 struct dentry
*dot11MeshRetryTimeout
;
510 struct dentry
*dot11MeshConfirmTimeout
;
511 struct dentry
*dot11MeshHoldingTimeout
;
512 struct dentry
*dot11MeshMaxRetries
;
513 struct dentry
*dot11MeshTTL
;
514 struct dentry
*auto_open_plinks
;
515 struct dentry
*dot11MeshMaxPeerLinks
;
516 struct dentry
*dot11MeshHWMPactivePathTimeout
;
517 struct dentry
*dot11MeshHWMPpreqMinInterval
;
518 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
519 struct dentry
*dot11MeshHWMPmaxPREQretries
;
520 struct dentry
*path_refresh_time
;
521 struct dentry
*min_discovery_timeout
;
526 /* must be last, dynamically sized area in this! */
527 struct ieee80211_vif vif
;
531 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
533 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
537 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data
*sdata
,
538 u8 mesh_id_len
, u8
*mesh_id
)
540 #ifdef CONFIG_MAC80211_MESH
541 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
542 ifmsh
->mesh_id_len
= mesh_id_len
;
543 memcpy(ifmsh
->mesh_id
, mesh_id
, mesh_id_len
);
550 IEEE80211_RX_MSG
= 1,
551 IEEE80211_TX_STATUS_MSG
= 2,
552 IEEE80211_DELBA_MSG
= 3,
553 IEEE80211_ADDBA_MSG
= 4,
556 enum queue_stop_reason
{
557 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
558 IEEE80211_QUEUE_STOP_REASON_PS
,
559 IEEE80211_QUEUE_STOP_REASON_CSA
,
560 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
561 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
562 IEEE80211_QUEUE_STOP_REASON_PENDING
,
563 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
566 struct ieee80211_master_priv
{
567 struct ieee80211_local
*local
;
570 struct ieee80211_local
{
571 /* embed the driver visible part.
572 * don't cast (use the static inlines below), but we keep
573 * it first anyway so they become a no-op */
574 struct ieee80211_hw hw
;
576 const struct ieee80211_ops
*ops
;
578 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
579 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
580 spinlock_t queue_stop_reason_lock
;
582 struct net_device
*mdev
; /* wmaster# - "master" 802.11 device */
584 int monitors
, cooked_mntrs
;
585 /* number of interfaces with corresponding FIF_ flags */
586 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
;
587 unsigned int filter_flags
; /* FIF_* */
588 struct iw_statistics wstats
;
589 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
592 * suspended is true if we finished all the suspend _and_ we have
593 * not yet come up from resume. This is to be used by mac80211
594 * to ensure driver sanity during suspend and mac80211's own
595 * sanity. It can eventually be used for WoW as well.
600 * quiescing is true during the suspend process _only_ to
601 * ease timer cancelling etc.
605 int tx_headroom
; /* required headroom for hardware/radiotap */
607 /* Tasklet and skb queue to process calls from IRQ mode. All frames
608 * added to skb_queue will be processed, but frames in
609 * skb_queue_unreliable may be dropped if the total length of these
610 * queues increases over the limit. */
611 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
612 struct tasklet_struct tasklet
;
613 struct sk_buff_head skb_queue
;
614 struct sk_buff_head skb_queue_unreliable
;
618 * The lock only protects the list, hash, timer and counter
619 * against manipulation, reads are done in RCU. Additionally,
620 * the lock protects each BSS's TIM bitmap.
623 unsigned long num_sta
;
624 struct list_head sta_list
;
625 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
626 struct timer_list sta_cleanup
;
628 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
629 struct tasklet_struct tx_pending_tasklet
;
632 * This lock is used to prevent concurrent A-MPDU
633 * session start/stop processing, this thus also
634 * synchronises the ->ampdu_action() callback to
635 * drivers and limits it to one at a time.
637 spinlock_t ampdu_lock
;
639 /* number of interfaces with corresponding IFF_ flags */
640 atomic_t iff_allmultis
, iff_promiscs
;
642 struct rate_control_ref
*rate_ctrl
;
644 struct crypto_blkcipher
*wep_tx_tfm
;
645 struct crypto_blkcipher
*wep_rx_tfm
;
649 struct list_head interfaces
;
650 struct mutex iflist_mtx
;
653 * Key lock, protects sdata's key_list and sta_info's
654 * key pointers (write access, they're RCU.)
659 /* Scanning and BSS list */
660 struct mutex scan_mtx
;
661 bool sw_scanning
, hw_scanning
;
662 struct cfg80211_ssid scan_ssid
;
663 struct cfg80211_scan_request int_scan_req
;
664 struct cfg80211_scan_request
*scan_req
;
665 struct ieee80211_channel
*scan_channel
;
668 int scan_channel_idx
;
671 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
672 struct delayed_work scan_work
;
673 struct ieee80211_sub_if_data
*scan_sdata
;
674 enum nl80211_channel_type oper_channel_type
;
675 struct ieee80211_channel
*oper_channel
, *csa_channel
;
678 /* dot11CountersTable */
679 u32 dot11TransmittedFragmentCount
;
680 u32 dot11MulticastTransmittedFrameCount
;
681 u32 dot11FailedCount
;
683 u32 dot11MultipleRetryCount
;
684 u32 dot11FrameDuplicateCount
;
685 u32 dot11ReceivedFragmentCount
;
686 u32 dot11MulticastReceivedFrameCount
;
687 u32 dot11TransmittedFrameCount
;
689 #ifdef CONFIG_MAC80211_LEDS
690 int tx_led_counter
, rx_led_counter
;
691 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
692 char tx_led_name
[32], rx_led_name
[32],
693 assoc_led_name
[32], radio_led_name
[32];
696 #ifdef CONFIG_MAC80211_DEBUGFS
697 struct work_struct sta_debugfs_add
;
700 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
701 /* TX/RX handler statistics */
702 unsigned int tx_handlers_drop
;
703 unsigned int tx_handlers_queued
;
704 unsigned int tx_handlers_drop_unencrypted
;
705 unsigned int tx_handlers_drop_fragment
;
706 unsigned int tx_handlers_drop_wep
;
707 unsigned int tx_handlers_drop_not_assoc
;
708 unsigned int tx_handlers_drop_unauth_port
;
709 unsigned int rx_handlers_drop
;
710 unsigned int rx_handlers_queued
;
711 unsigned int rx_handlers_drop_nullfunc
;
712 unsigned int rx_handlers_drop_defrag
;
713 unsigned int rx_handlers_drop_short
;
714 unsigned int rx_handlers_drop_passive_scan
;
715 unsigned int tx_expand_skb_head
;
716 unsigned int tx_expand_skb_head_cloned
;
717 unsigned int rx_expand_skb_head
;
718 unsigned int rx_expand_skb_head2
;
719 unsigned int rx_handlers_fragments
;
720 unsigned int tx_status_drop
;
721 #define I802_DEBUG_INC(c) (c)++
722 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
723 #define I802_DEBUG_INC(c) do { } while (0)
724 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
727 int total_ps_buffered
; /* total number of all buffered unicast and
728 * multicast packets for power saving stations
730 int wifi_wme_noack_test
;
731 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
735 * PS can only be enabled when we have exactly one managed
736 * interface (and monitors) in PS, this then points there.
738 struct ieee80211_sub_if_data
*ps_sdata
;
739 struct work_struct dynamic_ps_enable_work
;
740 struct work_struct dynamic_ps_disable_work
;
741 struct timer_list dynamic_ps_timer
;
742 struct notifier_block network_latency_notifier
;
744 int user_power_level
; /* in dBm */
745 int power_constr_level
; /* in dBm */
747 struct work_struct restart_work
;
749 #ifdef CONFIG_MAC80211_DEBUGFS
750 struct local_debugfsdentries
{
751 struct dentry
*rcdir
;
752 struct dentry
*rcname
;
753 struct dentry
*frequency
;
754 struct dentry
*total_ps_buffered
;
755 struct dentry
*wep_iv
;
757 struct dentry
*queues
;
758 struct dentry
*reset
;
759 struct dentry
*noack
;
760 struct dentry
*statistics
;
761 struct local_debugfsdentries_statsdentries
{
762 struct dentry
*transmitted_fragment_count
;
763 struct dentry
*multicast_transmitted_frame_count
;
764 struct dentry
*failed_count
;
765 struct dentry
*retry_count
;
766 struct dentry
*multiple_retry_count
;
767 struct dentry
*frame_duplicate_count
;
768 struct dentry
*received_fragment_count
;
769 struct dentry
*multicast_received_frame_count
;
770 struct dentry
*transmitted_frame_count
;
771 struct dentry
*wep_undecryptable_count
;
772 struct dentry
*num_scans
;
773 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
774 struct dentry
*tx_handlers_drop
;
775 struct dentry
*tx_handlers_queued
;
776 struct dentry
*tx_handlers_drop_unencrypted
;
777 struct dentry
*tx_handlers_drop_fragment
;
778 struct dentry
*tx_handlers_drop_wep
;
779 struct dentry
*tx_handlers_drop_not_assoc
;
780 struct dentry
*tx_handlers_drop_unauth_port
;
781 struct dentry
*rx_handlers_drop
;
782 struct dentry
*rx_handlers_queued
;
783 struct dentry
*rx_handlers_drop_nullfunc
;
784 struct dentry
*rx_handlers_drop_defrag
;
785 struct dentry
*rx_handlers_drop_short
;
786 struct dentry
*rx_handlers_drop_passive_scan
;
787 struct dentry
*tx_expand_skb_head
;
788 struct dentry
*tx_expand_skb_head_cloned
;
789 struct dentry
*rx_expand_skb_head
;
790 struct dentry
*rx_expand_skb_head2
;
791 struct dentry
*rx_handlers_fragments
;
792 struct dentry
*tx_status_drop
;
794 struct dentry
*dot11ACKFailureCount
;
795 struct dentry
*dot11RTSFailureCount
;
796 struct dentry
*dot11FCSErrorCount
;
797 struct dentry
*dot11RTSSuccessCount
;
799 struct dentry
*stations
;
805 static inline struct ieee80211_sub_if_data
*
806 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
808 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
810 BUG_ON(!local
|| local
->mdev
== dev
);
812 return netdev_priv(dev
);
815 /* this struct represents 802.11n's RA/TID combination */
816 struct ieee80211_ra_tid
{
821 /* Parsed Information Elements */
822 struct ieee802_11_elems
{
826 /* pointers to IEs */
832 struct ieee80211_tim_ie
*tim
;
841 struct ieee80211_ht_cap
*ht_cap_elem
;
842 struct ieee80211_ht_info
*ht_info_elem
;
852 u8
*quiet_elem
; /* first quite element */
855 /* length of them, respectively */
867 u8 ext_supp_rates_len
;
876 u8 ch_switch_elem_len
;
878 u8 pwr_constr_elem_len
;
880 u8 num_of_quiet_elem
; /* can be more the one */
884 static inline struct ieee80211_local
*hw_to_local(
885 struct ieee80211_hw
*hw
)
887 return container_of(hw
, struct ieee80211_local
, hw
);
890 static inline struct ieee80211_hw
*local_to_hw(
891 struct ieee80211_local
*local
)
897 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
899 return compare_ether_addr(raddr
, addr
) == 0 ||
900 is_broadcast_ether_addr(raddr
);
904 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
905 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
906 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
908 void ieee80211_configure_filter(struct ieee80211_local
*local
);
909 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
911 /* wireless extensions */
912 extern const struct iw_handler_def ieee80211_iw_handler_def
;
915 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
916 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
917 struct cfg80211_auth_request
*req
);
918 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
919 struct cfg80211_assoc_request
*req
);
920 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
921 struct cfg80211_deauth_request
*req
);
922 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
923 struct cfg80211_disassoc_request
*req
);
924 ieee80211_rx_result
ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data
*sdata
,
925 struct sk_buff
*skb
);
926 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
927 struct ieee80211_sub_if_data
*sdata
);
928 void ieee80211_recalc_ps(struct ieee80211_local
*local
, s32 latency
);
929 int ieee80211_max_network_latency(struct notifier_block
*nb
,
930 unsigned long data
, void *dummy
);
931 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data
*sdata
,
932 struct ieee80211_channel_sw_ie
*sw_elem
,
933 struct ieee80211_bss
*bss
);
934 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data
*sdata
);
935 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
938 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
939 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
941 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
);
942 struct sta_info
*ieee80211_ibss_add_sta(struct ieee80211_sub_if_data
*sdata
,
943 u8
*bssid
, u8
*addr
, u32 supp_rates
);
944 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
945 struct cfg80211_ibss_params
*params
);
946 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
947 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data
*sdata
);
948 void ieee80211_ibss_restart(struct ieee80211_sub_if_data
*sdata
);
950 /* scan/BSS handling */
951 void ieee80211_scan_work(struct work_struct
*work
);
952 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data
*sdata
,
953 const u8
*ssid
, u8 ssid_len
);
954 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
955 struct cfg80211_scan_request
*req
);
956 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
958 ieee80211_scan_rx(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
);
960 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
961 struct ieee80211_bss
*
962 ieee80211_bss_info_update(struct ieee80211_local
*local
,
963 struct ieee80211_rx_status
*rx_status
,
964 struct ieee80211_mgmt
*mgmt
,
966 struct ieee802_11_elems
*elems
,
967 struct ieee80211_channel
*channel
,
969 struct ieee80211_bss
*
970 ieee80211_rx_bss_get(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
971 u8
*ssid
, u8 ssid_len
);
972 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
973 struct ieee80211_bss
*bss
);
975 /* interface handling */
976 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
977 struct net_device
**new_dev
, enum nl80211_iftype type
,
978 struct vif_params
*params
);
979 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
980 enum nl80211_iftype type
);
981 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
982 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
983 u32
__ieee80211_recalc_idle(struct ieee80211_local
*local
);
984 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
987 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
988 void ieee80211_tx_pending(unsigned long data
);
989 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
990 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
991 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
994 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band
*sband
,
995 struct ieee80211_ht_cap
*ht_cap_ie
,
996 struct ieee80211_sta_ht_cap
*ht_cap
);
997 void ieee80211_send_bar(struct ieee80211_sub_if_data
*sdata
, u8
*ra
, u16 tid
, u16 ssn
);
998 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
999 const u8
*da
, u16 tid
,
1000 u16 initiator
, u16 reason_code
);
1002 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data
*sdata
, u8
*da
,
1003 u16 tid
, u16 initiator
, u16 reason
);
1004 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1005 u16 initiator
, u16 reason
);
1006 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
);
1007 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1008 struct sta_info
*sta
,
1009 struct ieee80211_mgmt
*mgmt
, size_t len
);
1010 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1011 struct sta_info
*sta
,
1012 struct ieee80211_mgmt
*mgmt
,
1014 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1015 struct sta_info
*sta
,
1016 struct ieee80211_mgmt
*mgmt
,
1019 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1020 enum ieee80211_back_parties initiator
);
1022 /* Spectrum management */
1023 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1024 struct ieee80211_mgmt
*mgmt
,
1027 /* Suspend/resume and hw reconfiguration */
1028 int ieee80211_reconfig(struct ieee80211_local
*local
);
1031 int __ieee80211_suspend(struct ieee80211_hw
*hw
);
1033 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1035 return ieee80211_reconfig(hw_to_local(hw
));
1038 static inline int __ieee80211_suspend(struct ieee80211_hw
*hw
)
1043 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1049 /* utility functions/constants */
1050 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
1051 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1052 enum nl80211_iftype type
);
1053 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
1054 int rate
, int erp
, int short_preamble
);
1055 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1056 struct ieee80211_hdr
*hdr
, const u8
*tsc
,
1058 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
);
1059 void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1061 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1062 struct ieee802_11_elems
*elems
);
1063 u32
ieee802_11_parse_elems_crc(u8
*start
, size_t len
,
1064 struct ieee802_11_elems
*elems
,
1065 u64 filter
, u32 crc
);
1066 u32
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1067 enum ieee80211_band band
);
1069 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1070 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1071 void ieee80211_dynamic_ps_timer(unsigned long data
);
1072 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1073 struct ieee80211_sub_if_data
*sdata
,
1075 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1076 struct ieee80211_hdr
*hdr
);
1077 void ieee80211_beacon_loss_work(struct work_struct
*work
);
1079 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1080 enum queue_stop_reason reason
);
1081 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1082 enum queue_stop_reason reason
);
1083 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1084 enum queue_stop_reason reason
);
1085 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1086 enum queue_stop_reason reason
);
1087 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
1088 struct sk_buff
*skb
);
1089 int ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
1090 struct sk_buff_head
*skbs
);
1092 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1093 u16 transaction
, u16 auth_alg
,
1094 u8
*extra
, size_t extra_len
,
1095 const u8
*bssid
, int encrypt
);
1096 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1097 const u8
*ie
, size_t ie_len
);
1098 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
1099 const u8
*ssid
, size_t ssid_len
,
1100 const u8
*ie
, size_t ie_len
);
1102 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data
*sdata
,
1103 const size_t supp_rates_len
,
1104 const u8
*supp_rates
);
1105 u32
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
1106 struct ieee802_11_elems
*elems
,
1107 enum ieee80211_band band
);
1109 #ifdef CONFIG_MAC80211_NOINLINE
1110 #define debug_noinline noinline
1112 #define debug_noinline
1115 #endif /* IEEE80211_I_H */