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/mac80211.h>
31 struct ieee80211_local
;
33 /* Maximum number of broadcast/multicast frames to buffer when some of the
34 * associated stations are using power saving. */
35 #define AP_MAX_BC_BUFFER 128
37 /* Maximum number of frames buffered to all STAs, including multicast frames.
38 * Note: increasing this limit increases the potential memory requirement. Each
39 * frame can be up to about 2 kB long. */
40 #define TOTAL_MAX_TX_BUFFER 512
42 /* Required encryption head and tailroom */
43 #define IEEE80211_ENCRYPT_HEADROOM 8
44 #define IEEE80211_ENCRYPT_TAILROOM 18
46 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
47 * reception of at least three fragmented frames. This limit can be increased
48 * by changing this define, at the cost of slower frame reassembly and
49 * increased memory use (about 2 kB of RAM per entry). */
50 #define IEEE80211_FRAGMENT_MAX 4
53 * Time after which we ignore scan results and no longer report/use
56 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
58 #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
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 /* Yes, this is a hack */
74 struct cfg80211_bss cbss
;
76 /* don't want to look up all the time */
78 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
84 unsigned long last_probe_resp
;
86 #ifdef CONFIG_MAC80211_MESH
92 #define IEEE80211_MAX_SUPP_RATES 32
93 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
94 size_t supp_rates_len
;
97 * During assocation, we save an ERP value from a probe response so
98 * that we can feed ERP info to the driver when handling the
99 * association completes. these fields probably won't be up-to-date
100 * otherwise, you probably don't want to use them.
106 static inline u8
*bss_mesh_cfg(struct ieee80211_bss
*bss
)
108 #ifdef CONFIG_MAC80211_MESH
109 return bss
->mesh_cfg
;
114 static inline u8
*bss_mesh_id(struct ieee80211_bss
*bss
)
116 #ifdef CONFIG_MAC80211_MESH
122 static inline u8
bss_mesh_id_len(struct ieee80211_bss
*bss
)
124 #ifdef CONFIG_MAC80211_MESH
125 return bss
->mesh_id_len
;
131 typedef unsigned __bitwise__ ieee80211_tx_result
;
132 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
133 #define TX_DROP ((__force ieee80211_tx_result) 1u)
134 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
136 #define IEEE80211_TX_FRAGMENTED BIT(0)
137 #define IEEE80211_TX_UNICAST BIT(1)
138 #define IEEE80211_TX_PS_BUFFERED BIT(2)
140 struct ieee80211_tx_data
{
142 struct net_device
*dev
;
143 struct ieee80211_local
*local
;
144 struct ieee80211_sub_if_data
*sdata
;
145 struct sta_info
*sta
;
146 struct ieee80211_key
*key
;
148 struct ieee80211_channel
*channel
;
155 typedef unsigned __bitwise__ ieee80211_rx_result
;
156 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
157 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
158 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
159 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
161 #define IEEE80211_RX_IN_SCAN BIT(0)
162 /* frame is destined to interface currently processed (incl. multicast frames) */
163 #define IEEE80211_RX_RA_MATCH BIT(1)
164 #define IEEE80211_RX_AMSDU BIT(2)
165 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
166 #define IEEE80211_RX_FRAGMENTED BIT(4)
168 struct ieee80211_rx_data
{
170 struct net_device
*dev
;
171 struct ieee80211_local
*local
;
172 struct ieee80211_sub_if_data
*sdata
;
173 struct sta_info
*sta
;
174 struct ieee80211_key
*key
;
175 struct ieee80211_rx_status
*status
;
176 struct ieee80211_rate
*rate
;
179 int sent_ps_buffered
;
187 int head_len
, tail_len
;
191 struct ieee80211_if_ap
{
192 struct beacon_data
*beacon
;
194 struct list_head vlans
;
196 /* yes, this looks ugly, but guarantees that we can later use
198 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
199 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
200 struct sk_buff_head ps_bc_buf
;
201 atomic_t num_sta_ps
; /* number of stations in PS mode */
205 struct ieee80211_if_wds
{
206 struct sta_info
*sta
;
207 u8 remote_addr
[ETH_ALEN
];
210 struct ieee80211_if_vlan
{
211 struct list_head list
;
215 __u32 fwded_mcast
; /* Mesh forwarded multicast frames */
216 __u32 fwded_unicast
; /* Mesh forwarded unicast frames */
217 __u32 fwded_frames
; /* Mesh total 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 enum ieee80211_mgd_state
{
232 IEEE80211_MGD_STATE_IDLE
,
233 IEEE80211_MGD_STATE_PROBE
,
234 IEEE80211_MGD_STATE_AUTH
,
235 IEEE80211_MGD_STATE_ASSOC
,
238 struct ieee80211_mgd_work
{
239 struct list_head list
;
240 struct ieee80211_bss
*bss
;
242 u8 prev_bssid
[ETH_ALEN
];
243 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
245 unsigned long timeout
;
246 enum ieee80211_mgd_state state
;
247 u16 auth_alg
, auth_transaction
;
251 u8 key
[WLAN_KEY_LEN_WEP104
];
255 u8 ie
[0]; /* for auth or assoc frame, not probe */
258 /* flags used in struct ieee80211_if_managed.flags */
259 enum ieee80211_sta_flags
{
260 IEEE80211_STA_BEACON_POLL
= BIT(0),
261 IEEE80211_STA_CONNECTION_POLL
= BIT(1),
262 IEEE80211_STA_CONTROL_PORT
= BIT(2),
263 IEEE80211_STA_WMM_ENABLED
= BIT(3),
264 IEEE80211_STA_DISABLE_11N
= BIT(4),
265 IEEE80211_STA_CSA_RECEIVED
= BIT(5),
266 IEEE80211_STA_MFP_ENABLED
= BIT(6),
269 /* flags for MLME request */
270 enum ieee80211_sta_request
{
271 IEEE80211_STA_REQ_SCAN
,
274 struct ieee80211_if_managed
{
275 struct timer_list timer
;
276 struct timer_list conn_mon_timer
;
277 struct timer_list bcn_mon_timer
;
278 struct timer_list chswitch_timer
;
279 struct work_struct work
;
280 struct work_struct monitor_work
;
281 struct work_struct chswitch_work
;
282 struct work_struct beacon_loss_work
;
284 unsigned long probe_timeout
;
285 int probe_send_count
;
288 struct ieee80211_bss
*associated
;
289 struct ieee80211_mgd_work
*old_associate_work
;
290 struct list_head work_list
;
297 struct sk_buff_head skb_queue
;
299 unsigned long timers_running
; /* used for quiesce/restart */
300 bool powersave
; /* powersave requested for this iface */
302 unsigned long request
;
309 IEEE80211_MFP_DISABLED
,
310 IEEE80211_MFP_OPTIONAL
,
311 IEEE80211_MFP_REQUIRED
312 } mfp
; /* management frame protection */
314 int wmm_last_param_set
;
317 enum ieee80211_ibss_request
{
318 IEEE80211_IBSS_REQ_RUN
= 0,
321 struct ieee80211_if_ibss
{
322 struct timer_list timer
;
323 struct work_struct work
;
325 struct sk_buff_head skb_queue
;
327 unsigned long request
;
328 unsigned long last_scan_completed
;
337 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
340 struct ieee80211_channel
*channel
;
342 unsigned long ibss_join_req
;
343 /* probe response/beacon for IBSS */
344 struct sk_buff
*presp
, *skb
;
347 IEEE80211_IBSS_MLME_SEARCH
,
348 IEEE80211_IBSS_MLME_JOINED
,
352 struct ieee80211_if_mesh
{
353 struct work_struct work
;
354 struct timer_list housekeeping_timer
;
355 struct timer_list mesh_path_timer
;
356 struct sk_buff_head skb_queue
;
358 unsigned long timers_running
;
360 unsigned long wrkq_flags
;
362 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
364 /* Active Path Selection Protocol Identifier */
366 /* Active Path Selection Metric Identifier */
368 /* Congestion Control Mode Identifier */
370 /* Synchronization Protocol Identifier */
372 /* Authentication Protocol Identifier */
374 /* Local mesh Destination Sequence Number */
376 /* Last used PREQ ID */
379 /* Timestamp of last DSN update */
380 unsigned long last_dsn_update
;
381 /* Timestamp of last DSN sent */
382 unsigned long last_preq
;
383 struct mesh_rmc
*rmc
;
384 spinlock_t mesh_preq_queue_lock
;
385 struct mesh_preq_queue preq_queue
;
387 struct mesh_stats mshstats
;
388 struct mesh_config mshcfg
;
390 bool accepting_plinks
;
393 #ifdef CONFIG_MAC80211_MESH
394 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
395 do { (msh)->mshstats.name++; } while (0)
397 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
402 * enum ieee80211_sub_if_data_flags - virtual interface flags
404 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
405 * @IEEE80211_SDATA_PROMISC: interface is promisc
406 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
407 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
408 * associated stations and deliver multicast frames both
409 * back to wireless media and to the local net stack.
411 enum ieee80211_sub_if_data_flags
{
412 IEEE80211_SDATA_ALLMULTI
= BIT(0),
413 IEEE80211_SDATA_PROMISC
= BIT(1),
414 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
415 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
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
;
434 * keep track of whether the HT opmode (stored in
435 * vif.bss_info.ht_operation_mode) is valid.
437 bool ht_opmode_valid
;
439 /* Fragment table for host-based reassembly */
440 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
441 unsigned int fragment_next
;
443 #define NUM_DEFAULT_KEYS 4
444 #define NUM_DEFAULT_MGMT_KEYS 2
445 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
446 struct ieee80211_key
*default_key
;
447 struct ieee80211_key
*default_mgmt_key
;
452 * AP this belongs to: self in AP mode and
453 * corresponding AP in VLAN mode, NULL for
454 * all others (might be needed later in IBSS)
456 struct ieee80211_if_ap
*bss
;
458 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
459 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
462 struct ieee80211_if_ap ap
;
463 struct ieee80211_if_wds wds
;
464 struct ieee80211_if_vlan vlan
;
465 struct ieee80211_if_managed mgd
;
466 struct ieee80211_if_ibss ibss
;
467 #ifdef CONFIG_MAC80211_MESH
468 struct ieee80211_if_mesh mesh
;
473 #ifdef CONFIG_MAC80211_DEBUGFS
474 struct dentry
*debugfsdir
;
477 struct dentry
*drop_unencrypted
;
478 struct dentry
*bssid
;
480 struct dentry
*capab
;
481 struct dentry
*force_unicast_rateidx
;
482 struct dentry
*max_ratectrl_rateidx
;
485 struct dentry
*drop_unencrypted
;
486 struct dentry
*num_sta_ps
;
487 struct dentry
*dtim_count
;
488 struct dentry
*force_unicast_rateidx
;
489 struct dentry
*max_ratectrl_rateidx
;
490 struct dentry
*num_buffered_multicast
;
493 struct dentry
*drop_unencrypted
;
495 struct dentry
*force_unicast_rateidx
;
496 struct dentry
*max_ratectrl_rateidx
;
499 struct dentry
*drop_unencrypted
;
500 struct dentry
*force_unicast_rateidx
;
501 struct dentry
*max_ratectrl_rateidx
;
508 struct dentry
*default_key
;
509 struct dentry
*default_mgmt_key
;
512 #ifdef CONFIG_MAC80211_MESH
513 struct dentry
*mesh_stats_dir
;
515 struct dentry
*fwded_mcast
;
516 struct dentry
*fwded_unicast
;
517 struct dentry
*fwded_frames
;
518 struct dentry
*dropped_frames_ttl
;
519 struct dentry
*dropped_frames_no_route
;
520 struct dentry
*estab_plinks
;
521 struct timer_list mesh_path_timer
;
524 struct dentry
*mesh_config_dir
;
526 struct dentry
*dot11MeshRetryTimeout
;
527 struct dentry
*dot11MeshConfirmTimeout
;
528 struct dentry
*dot11MeshHoldingTimeout
;
529 struct dentry
*dot11MeshMaxRetries
;
530 struct dentry
*dot11MeshTTL
;
531 struct dentry
*auto_open_plinks
;
532 struct dentry
*dot11MeshMaxPeerLinks
;
533 struct dentry
*dot11MeshHWMPactivePathTimeout
;
534 struct dentry
*dot11MeshHWMPpreqMinInterval
;
535 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
536 struct dentry
*dot11MeshHWMPmaxPREQretries
;
537 struct dentry
*path_refresh_time
;
538 struct dentry
*min_discovery_timeout
;
543 /* must be last, dynamically sized area in this! */
544 struct ieee80211_vif vif
;
548 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
550 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
554 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data
*sdata
,
555 u8 mesh_id_len
, u8
*mesh_id
)
557 #ifdef CONFIG_MAC80211_MESH
558 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
559 ifmsh
->mesh_id_len
= mesh_id_len
;
560 memcpy(ifmsh
->mesh_id
, mesh_id
, mesh_id_len
);
567 IEEE80211_RX_MSG
= 1,
568 IEEE80211_TX_STATUS_MSG
= 2,
569 IEEE80211_DELBA_MSG
= 3,
570 IEEE80211_ADDBA_MSG
= 4,
573 enum queue_stop_reason
{
574 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
575 IEEE80211_QUEUE_STOP_REASON_PS
,
576 IEEE80211_QUEUE_STOP_REASON_CSA
,
577 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
578 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
579 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
583 * mac80211 scan flags - currently active scan mode
585 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
586 * well be on the operating channel
587 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
588 * determine if we are on the operating channel or not
589 * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning,
590 * gets only set in conjunction with SCAN_SW_SCANNING
599 * enum mac80211_scan_state - scan state machine states
601 * @SCAN_DECISION: Main entry point to the scan state machine, this state
602 * determines if we should keep on scanning or switch back to the
604 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
605 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
606 * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP
607 * about us leaving the channel and stop all associated STA interfaces
608 * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the
609 * AP about us being back and restart all associated STA interfaces
611 enum mac80211_scan_state
{
615 SCAN_LEAVE_OPER_CHANNEL
,
616 SCAN_ENTER_OPER_CHANNEL
,
619 struct ieee80211_local
{
620 /* embed the driver visible part.
621 * don't cast (use the static inlines below), but we keep
622 * it first anyway so they become a no-op */
623 struct ieee80211_hw hw
;
625 const struct ieee80211_ops
*ops
;
628 * private workqueue to mac80211. mac80211 makes this accessible
629 * via ieee80211_queue_work()
631 struct workqueue_struct
*workqueue
;
633 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
634 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
635 spinlock_t queue_stop_reason_lock
;
638 int monitors
, cooked_mntrs
;
639 /* number of interfaces with corresponding FIF_ flags */
640 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
, fif_pspoll
;
641 unsigned int filter_flags
; /* FIF_* */
642 struct iw_statistics wstats
;
644 /* protects the aggregated multicast list and filter calls */
645 spinlock_t filter_lock
;
647 /* used for uploading changed mc list */
648 struct work_struct reconfig_filter
;
650 /* aggregated multicast list */
651 struct dev_addr_list
*mc_list
;
654 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
657 * suspended is true if we finished all the suspend _and_ we have
658 * not yet come up from resume. This is to be used by mac80211
659 * to ensure driver sanity during suspend and mac80211's own
660 * sanity. It can eventually be used for WoW as well.
665 * quiescing is true during the suspend process _only_ to
666 * ease timer cancelling etc.
670 int tx_headroom
; /* required headroom for hardware/radiotap */
672 /* Tasklet and skb queue to process calls from IRQ mode. All frames
673 * added to skb_queue will be processed, but frames in
674 * skb_queue_unreliable may be dropped if the total length of these
675 * queues increases over the limit. */
676 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
677 struct tasklet_struct tasklet
;
678 struct sk_buff_head skb_queue
;
679 struct sk_buff_head skb_queue_unreliable
;
683 * The lock only protects the list, hash, timer and counter
684 * against manipulation, reads are done in RCU. Additionally,
685 * the lock protects each BSS's TIM bitmap.
688 unsigned long num_sta
;
689 struct list_head sta_list
;
690 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
691 struct timer_list sta_cleanup
;
694 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
695 struct tasklet_struct tx_pending_tasklet
;
698 * This lock is used to prevent concurrent A-MPDU
699 * session start/stop processing, this thus also
700 * synchronises the ->ampdu_action() callback to
701 * drivers and limits it to one at a time.
703 spinlock_t ampdu_lock
;
705 /* number of interfaces with corresponding IFF_ flags */
706 atomic_t iff_allmultis
, iff_promiscs
;
708 struct rate_control_ref
*rate_ctrl
;
710 struct crypto_blkcipher
*wep_tx_tfm
;
711 struct crypto_blkcipher
*wep_rx_tfm
;
715 struct list_head interfaces
;
716 struct mutex iflist_mtx
;
719 * Key lock, protects sdata's key_list and sta_info's
720 * key pointers (write access, they're RCU.)
725 /* Scanning and BSS list */
726 struct mutex scan_mtx
;
727 unsigned long scanning
;
728 struct cfg80211_ssid scan_ssid
;
729 struct cfg80211_scan_request
*int_scan_req
;
730 struct cfg80211_scan_request
*scan_req
;
731 struct ieee80211_channel
*scan_channel
;
734 int scan_channel_idx
;
737 enum mac80211_scan_state next_scan_state
;
738 struct delayed_work scan_work
;
739 struct ieee80211_sub_if_data
*scan_sdata
;
740 enum nl80211_channel_type oper_channel_type
;
741 struct ieee80211_channel
*oper_channel
, *csa_channel
;
744 /* dot11CountersTable */
745 u32 dot11TransmittedFragmentCount
;
746 u32 dot11MulticastTransmittedFrameCount
;
747 u32 dot11FailedCount
;
749 u32 dot11MultipleRetryCount
;
750 u32 dot11FrameDuplicateCount
;
751 u32 dot11ReceivedFragmentCount
;
752 u32 dot11MulticastReceivedFrameCount
;
753 u32 dot11TransmittedFrameCount
;
755 #ifdef CONFIG_MAC80211_LEDS
756 int tx_led_counter
, rx_led_counter
;
757 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
758 char tx_led_name
[32], rx_led_name
[32],
759 assoc_led_name
[32], radio_led_name
[32];
762 #ifdef CONFIG_MAC80211_DEBUGFS
763 struct work_struct sta_debugfs_add
;
766 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
767 /* TX/RX handler statistics */
768 unsigned int tx_handlers_drop
;
769 unsigned int tx_handlers_queued
;
770 unsigned int tx_handlers_drop_unencrypted
;
771 unsigned int tx_handlers_drop_fragment
;
772 unsigned int tx_handlers_drop_wep
;
773 unsigned int tx_handlers_drop_not_assoc
;
774 unsigned int tx_handlers_drop_unauth_port
;
775 unsigned int rx_handlers_drop
;
776 unsigned int rx_handlers_queued
;
777 unsigned int rx_handlers_drop_nullfunc
;
778 unsigned int rx_handlers_drop_defrag
;
779 unsigned int rx_handlers_drop_short
;
780 unsigned int rx_handlers_drop_passive_scan
;
781 unsigned int tx_expand_skb_head
;
782 unsigned int tx_expand_skb_head_cloned
;
783 unsigned int rx_expand_skb_head
;
784 unsigned int rx_expand_skb_head2
;
785 unsigned int rx_handlers_fragments
;
786 unsigned int tx_status_drop
;
787 #define I802_DEBUG_INC(c) (c)++
788 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
789 #define I802_DEBUG_INC(c) do { } while (0)
790 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
793 int total_ps_buffered
; /* total number of all buffered unicast and
794 * multicast packets for power saving stations
796 int wifi_wme_noack_test
;
797 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
801 * PS can only be enabled when we have exactly one managed
802 * interface (and monitors) in PS, this then points there.
804 struct ieee80211_sub_if_data
*ps_sdata
;
805 struct work_struct dynamic_ps_enable_work
;
806 struct work_struct dynamic_ps_disable_work
;
807 struct timer_list dynamic_ps_timer
;
808 struct notifier_block network_latency_notifier
;
810 int user_power_level
; /* in dBm */
811 int power_constr_level
; /* in dBm */
813 struct work_struct restart_work
;
815 #ifdef CONFIG_MAC80211_DEBUGFS
816 struct local_debugfsdentries
{
817 struct dentry
*rcdir
;
818 struct dentry
*rcname
;
819 struct dentry
*frequency
;
820 struct dentry
*total_ps_buffered
;
821 struct dentry
*wep_iv
;
823 struct dentry
*queues
;
824 struct dentry
*reset
;
825 struct dentry
*noack
;
826 struct dentry
*statistics
;
827 struct local_debugfsdentries_statsdentries
{
828 struct dentry
*transmitted_fragment_count
;
829 struct dentry
*multicast_transmitted_frame_count
;
830 struct dentry
*failed_count
;
831 struct dentry
*retry_count
;
832 struct dentry
*multiple_retry_count
;
833 struct dentry
*frame_duplicate_count
;
834 struct dentry
*received_fragment_count
;
835 struct dentry
*multicast_received_frame_count
;
836 struct dentry
*transmitted_frame_count
;
837 struct dentry
*wep_undecryptable_count
;
838 struct dentry
*num_scans
;
839 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
840 struct dentry
*tx_handlers_drop
;
841 struct dentry
*tx_handlers_queued
;
842 struct dentry
*tx_handlers_drop_unencrypted
;
843 struct dentry
*tx_handlers_drop_fragment
;
844 struct dentry
*tx_handlers_drop_wep
;
845 struct dentry
*tx_handlers_drop_not_assoc
;
846 struct dentry
*tx_handlers_drop_unauth_port
;
847 struct dentry
*rx_handlers_drop
;
848 struct dentry
*rx_handlers_queued
;
849 struct dentry
*rx_handlers_drop_nullfunc
;
850 struct dentry
*rx_handlers_drop_defrag
;
851 struct dentry
*rx_handlers_drop_short
;
852 struct dentry
*rx_handlers_drop_passive_scan
;
853 struct dentry
*tx_expand_skb_head
;
854 struct dentry
*tx_expand_skb_head_cloned
;
855 struct dentry
*rx_expand_skb_head
;
856 struct dentry
*rx_expand_skb_head2
;
857 struct dentry
*rx_handlers_fragments
;
858 struct dentry
*tx_status_drop
;
860 struct dentry
*dot11ACKFailureCount
;
861 struct dentry
*dot11RTSFailureCount
;
862 struct dentry
*dot11FCSErrorCount
;
863 struct dentry
*dot11RTSSuccessCount
;
865 struct dentry
*stations
;
871 static inline struct ieee80211_sub_if_data
*
872 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
874 return netdev_priv(dev
);
877 /* this struct represents 802.11n's RA/TID combination */
878 struct ieee80211_ra_tid
{
883 /* Parsed Information Elements */
884 struct ieee802_11_elems
{
888 /* pointers to IEs */
894 struct ieee80211_tim_ie
*tim
;
903 struct ieee80211_ht_cap
*ht_cap_elem
;
904 struct ieee80211_ht_info
*ht_info_elem
;
914 u8
*quiet_elem
; /* first quite element */
917 /* length of them, respectively */
929 u8 ext_supp_rates_len
;
938 u8 ch_switch_elem_len
;
940 u8 pwr_constr_elem_len
;
942 u8 num_of_quiet_elem
; /* can be more the one */
946 static inline struct ieee80211_local
*hw_to_local(
947 struct ieee80211_hw
*hw
)
949 return container_of(hw
, struct ieee80211_local
, hw
);
952 static inline struct ieee80211_hw
*local_to_hw(
953 struct ieee80211_local
*local
)
959 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
961 return compare_ether_addr(raddr
, addr
) == 0 ||
962 is_broadcast_ether_addr(raddr
);
966 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
967 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
968 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
970 void ieee80211_configure_filter(struct ieee80211_local
*local
);
971 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
974 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
975 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
976 struct cfg80211_auth_request
*req
);
977 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
978 struct cfg80211_assoc_request
*req
);
979 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
980 struct cfg80211_deauth_request
*req
,
982 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
983 struct cfg80211_disassoc_request
*req
,
985 ieee80211_rx_result
ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data
*sdata
,
986 struct sk_buff
*skb
);
987 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
988 struct ieee80211_sub_if_data
*sdata
);
989 void ieee80211_recalc_ps(struct ieee80211_local
*local
, s32 latency
);
990 int ieee80211_max_network_latency(struct notifier_block
*nb
,
991 unsigned long data
, void *dummy
);
992 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data
*sdata
,
993 struct ieee80211_channel_sw_ie
*sw_elem
,
994 struct ieee80211_bss
*bss
);
995 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data
*sdata
);
996 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
999 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
1000 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1002 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
);
1003 struct sta_info
*ieee80211_ibss_add_sta(struct ieee80211_sub_if_data
*sdata
,
1004 u8
*bssid
, u8
*addr
, u32 supp_rates
);
1005 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
1006 struct cfg80211_ibss_params
*params
);
1007 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
1008 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data
*sdata
);
1009 void ieee80211_ibss_restart(struct ieee80211_sub_if_data
*sdata
);
1011 /* scan/BSS handling */
1012 void ieee80211_scan_work(struct work_struct
*work
);
1013 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data
*sdata
,
1014 const u8
*ssid
, u8 ssid_len
);
1015 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
1016 struct cfg80211_scan_request
*req
);
1017 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
1019 ieee80211_scan_rx(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
);
1021 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
1022 struct ieee80211_bss
*
1023 ieee80211_bss_info_update(struct ieee80211_local
*local
,
1024 struct ieee80211_rx_status
*rx_status
,
1025 struct ieee80211_mgmt
*mgmt
,
1027 struct ieee802_11_elems
*elems
,
1028 struct ieee80211_channel
*channel
,
1030 struct ieee80211_bss
*
1031 ieee80211_rx_bss_get(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
1032 u8
*ssid
, u8 ssid_len
);
1033 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
1034 struct ieee80211_bss
*bss
);
1036 /* interface handling */
1037 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
1038 struct net_device
**new_dev
, enum nl80211_iftype type
,
1039 struct vif_params
*params
);
1040 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
1041 enum nl80211_iftype type
);
1042 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1043 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1044 u32
__ieee80211_recalc_idle(struct ieee80211_local
*local
);
1045 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
1048 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1049 void ieee80211_tx_pending(unsigned long data
);
1050 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
1051 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
1054 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band
*sband
,
1055 struct ieee80211_ht_cap
*ht_cap_ie
,
1056 struct ieee80211_sta_ht_cap
*ht_cap
);
1057 void ieee80211_send_bar(struct ieee80211_sub_if_data
*sdata
, u8
*ra
, u16 tid
, u16 ssn
);
1058 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1059 const u8
*da
, u16 tid
,
1060 u16 initiator
, u16 reason_code
);
1062 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data
*sdata
, u8
*da
,
1063 u16 tid
, u16 initiator
, u16 reason
);
1064 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1065 u16 initiator
, u16 reason
);
1066 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
);
1067 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1068 struct sta_info
*sta
,
1069 struct ieee80211_mgmt
*mgmt
, size_t len
);
1070 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1071 struct sta_info
*sta
,
1072 struct ieee80211_mgmt
*mgmt
,
1074 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1075 struct sta_info
*sta
,
1076 struct ieee80211_mgmt
*mgmt
,
1079 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1080 enum ieee80211_back_parties initiator
);
1082 /* Spectrum management */
1083 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1084 struct ieee80211_mgmt
*mgmt
,
1087 /* Suspend/resume and hw reconfiguration */
1088 int ieee80211_reconfig(struct ieee80211_local
*local
);
1089 void ieee80211_stop_device(struct ieee80211_local
*local
);
1092 int __ieee80211_suspend(struct ieee80211_hw
*hw
);
1094 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1096 return ieee80211_reconfig(hw_to_local(hw
));
1099 static inline int __ieee80211_suspend(struct ieee80211_hw
*hw
)
1104 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1110 /* utility functions/constants */
1111 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
1112 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1113 enum nl80211_iftype type
);
1114 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
1115 int rate
, int erp
, int short_preamble
);
1116 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1117 struct ieee80211_hdr
*hdr
, const u8
*tsc
,
1119 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
);
1120 void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1122 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1123 struct ieee802_11_elems
*elems
);
1124 u32
ieee802_11_parse_elems_crc(u8
*start
, size_t len
,
1125 struct ieee802_11_elems
*elems
,
1126 u64 filter
, u32 crc
);
1127 u32
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1128 enum ieee80211_band band
);
1130 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1131 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1132 void ieee80211_dynamic_ps_timer(unsigned long data
);
1133 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1134 struct ieee80211_sub_if_data
*sdata
,
1136 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1137 struct ieee80211_hdr
*hdr
);
1138 void ieee80211_beacon_loss_work(struct work_struct
*work
);
1140 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1141 enum queue_stop_reason reason
);
1142 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1143 enum queue_stop_reason reason
);
1144 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1145 enum queue_stop_reason reason
);
1146 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1147 enum queue_stop_reason reason
);
1148 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
1149 struct sk_buff
*skb
);
1150 int ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
1151 struct sk_buff_head
*skbs
);
1153 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1154 u16 transaction
, u16 auth_alg
,
1155 u8
*extra
, size_t extra_len
, const u8
*bssid
,
1156 const u8
*key
, u8 key_len
, u8 key_idx
);
1157 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1158 const u8
*ie
, size_t ie_len
);
1159 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
1160 const u8
*ssid
, size_t ssid_len
,
1161 const u8
*ie
, size_t ie_len
);
1163 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data
*sdata
,
1164 const size_t supp_rates_len
,
1165 const u8
*supp_rates
);
1166 u32
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
1167 struct ieee802_11_elems
*elems
,
1168 enum ieee80211_band band
);
1170 #ifdef CONFIG_MAC80211_NOINLINE
1171 #define debug_noinline noinline
1173 #define debug_noinline
1176 #endif /* IEEE80211_I_H */