2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/device.h>
17 #include <linux/if_ether.h>
18 #include <linux/interrupt.h>
19 #include <linux/list.h>
20 #include <linux/netdevice.h>
21 #include <linux/skbuff.h>
22 #include <linux/workqueue.h>
23 #include <linux/types.h>
24 #include <linux/spinlock.h>
25 #include <linux/etherdevice.h>
26 #include <net/cfg80211.h>
27 #include <net/wireless.h>
28 #include <net/iw_handler.h>
29 #include <net/mac80211.h>
33 struct ieee80211_local
;
35 /* Maximum number of broadcast/multicast frames to buffer when some of the
36 * associated stations are using power saving. */
37 #define AP_MAX_BC_BUFFER 128
39 /* Maximum number of frames buffered to all STAs, including multicast frames.
40 * Note: increasing this limit increases the potential memory requirement. Each
41 * frame can be up to about 2 kB long. */
42 #define TOTAL_MAX_TX_BUFFER 512
44 /* Required encryption head and tailroom */
45 #define IEEE80211_ENCRYPT_HEADROOM 8
46 #define IEEE80211_ENCRYPT_TAILROOM 18
48 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
49 * reception of at least three fragmented frames. This limit can be increased
50 * by changing this define, at the cost of slower frame reassembly and
51 * increased memory use (about 2 kB of RAM per entry). */
52 #define IEEE80211_FRAGMENT_MAX 4
55 * Time after which we ignore scan results and no longer report/use
58 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
60 #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
62 struct ieee80211_fragment_entry
{
63 unsigned long first_frag_time
;
65 unsigned int rx_queue
;
66 unsigned int last_frag
;
67 unsigned int extra_len
;
68 struct sk_buff_head skb_list
;
69 int ccmp
; /* Whether fragments were encrypted with CCMP */
70 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
74 struct ieee80211_bss
{
75 /* Yes, this is a hack */
76 struct cfg80211_bss cbss
;
78 /* don't want to look up all the time */
80 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
86 unsigned long last_probe_resp
;
88 #ifdef CONFIG_MAC80211_MESH
94 #define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
96 size_t supp_rates_len
;
99 * During assocation, we save an ERP value from a probe response so
100 * that we can feed ERP info to the driver when handling the
101 * association completes. these fields probably won't be up-to-date
102 * otherwise, you probably don't want to use them.
108 static inline u8
*bss_mesh_cfg(struct ieee80211_bss
*bss
)
110 #ifdef CONFIG_MAC80211_MESH
111 return bss
->mesh_cfg
;
116 static inline u8
*bss_mesh_id(struct ieee80211_bss
*bss
)
118 #ifdef CONFIG_MAC80211_MESH
124 static inline u8
bss_mesh_id_len(struct ieee80211_bss
*bss
)
126 #ifdef CONFIG_MAC80211_MESH
127 return bss
->mesh_id_len
;
133 typedef unsigned __bitwise__ ieee80211_tx_result
;
134 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
135 #define TX_DROP ((__force ieee80211_tx_result) 1u)
136 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
138 #define IEEE80211_TX_FRAGMENTED BIT(0)
139 #define IEEE80211_TX_UNICAST BIT(1)
140 #define IEEE80211_TX_PS_BUFFERED BIT(2)
142 struct ieee80211_tx_data
{
144 struct net_device
*dev
;
145 struct ieee80211_local
*local
;
146 struct ieee80211_sub_if_data
*sdata
;
147 struct sta_info
*sta
;
148 struct ieee80211_key
*key
;
150 struct ieee80211_channel
*channel
;
152 /* Extra fragments (in addition to the first fragment
154 struct sk_buff
**extra_frag
;
162 typedef unsigned __bitwise__ ieee80211_rx_result
;
163 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
164 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
165 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
166 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
168 #define IEEE80211_RX_IN_SCAN BIT(0)
169 /* frame is destined to interface currently processed (incl. multicast frames) */
170 #define IEEE80211_RX_RA_MATCH BIT(1)
171 #define IEEE80211_RX_AMSDU BIT(2)
172 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
173 #define IEEE80211_RX_FRAGMENTED BIT(4)
175 struct ieee80211_rx_data
{
177 struct net_device
*dev
;
178 struct ieee80211_local
*local
;
179 struct ieee80211_sub_if_data
*sdata
;
180 struct sta_info
*sta
;
181 struct ieee80211_key
*key
;
182 struct ieee80211_rx_status
*status
;
183 struct ieee80211_rate
*rate
;
186 int sent_ps_buffered
;
192 struct ieee80211_tx_stored_packet
{
194 struct sk_buff
**extra_frag
;
200 int head_len
, tail_len
;
204 struct ieee80211_if_ap
{
205 struct beacon_data
*beacon
;
207 struct list_head vlans
;
209 /* yes, this looks ugly, but guarantees that we can later use
211 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
212 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
213 struct sk_buff_head ps_bc_buf
;
214 atomic_t num_sta_ps
; /* number of stations in PS mode */
218 struct ieee80211_if_wds
{
219 struct sta_info
*sta
;
220 u8 remote_addr
[ETH_ALEN
];
223 struct ieee80211_if_vlan
{
224 struct list_head list
;
228 __u32 fwded_frames
; /* Mesh forwarded frames */
229 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
230 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
231 atomic_t estab_plinks
;
234 #define PREQ_Q_F_START 0x1
235 #define PREQ_Q_F_REFRESH 0x2
236 struct mesh_preq_queue
{
237 struct list_head list
;
242 /* flags used in struct ieee80211_if_managed.flags */
243 #define IEEE80211_STA_SSID_SET BIT(0)
244 #define IEEE80211_STA_BSSID_SET BIT(1)
245 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
246 #define IEEE80211_STA_AUTHENTICATED BIT(3)
247 #define IEEE80211_STA_ASSOCIATED BIT(4)
248 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
249 #define IEEE80211_STA_CREATE_IBSS BIT(6)
250 #define IEEE80211_STA_MIXED_CELL BIT(7)
251 #define IEEE80211_STA_WMM_ENABLED BIT(8)
252 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
253 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
254 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
255 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
256 #define IEEE80211_STA_TKIP_WEP_USED BIT(14)
257 #define IEEE80211_STA_CSA_RECEIVED BIT(15)
258 #define IEEE80211_STA_MFP_ENABLED BIT(16)
259 /* flags for MLME request */
260 #define IEEE80211_STA_REQ_SCAN 0
261 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
262 #define IEEE80211_STA_REQ_AUTH 2
263 #define IEEE80211_STA_REQ_RUN 3
265 /* bitfield of allowed auth algs */
266 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
267 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
268 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
270 struct ieee80211_if_managed
{
271 struct timer_list timer
;
272 struct timer_list chswitch_timer
;
273 struct work_struct work
;
274 struct work_struct chswitch_work
;
276 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
278 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
282 IEEE80211_STA_MLME_DISABLED
,
283 IEEE80211_STA_MLME_DIRECT_PROBE
,
284 IEEE80211_STA_MLME_AUTHENTICATE
,
285 IEEE80211_STA_MLME_ASSOCIATE
,
286 IEEE80211_STA_MLME_ASSOCIATED
,
291 u8
*extra_ie
; /* to be added to the end of AssocReq */
294 /* The last AssocReq/Resp IEs */
295 u8
*assocreq_ies
, *assocresp_ies
;
296 size_t assocreq_ies_len
, assocresp_ies_len
;
298 struct sk_buff_head skb_queue
;
300 int assoc_scan_tries
; /* number of scans done pre-association */
301 int direct_probe_tries
; /* retries for direct probes */
302 int auth_tries
; /* retries for auth req */
303 int assoc_tries
; /* retries for assoc req */
305 unsigned long request
;
307 unsigned long last_probe
;
311 unsigned int auth_algs
; /* bitfield of allowed auth algs */
312 int auth_alg
; /* currently used IEEE 802.11 authentication algorithm */
313 int auth_transaction
;
316 IEEE80211_MFP_DISABLED
,
317 IEEE80211_MFP_OPTIONAL
,
318 IEEE80211_MFP_REQUIRED
319 } mfp
; /* management frame protection */
321 int wmm_last_param_set
;
323 /* Extra IE data for management frames */
325 size_t ie_probereq_len
;
327 size_t ie_proberesp_len
;
331 size_t ie_assocreq_len
;
333 size_t ie_reassocreq_len
;
335 size_t ie_deauth_len
;
337 size_t ie_disassoc_len
;
340 enum ieee80211_ibss_flags
{
341 IEEE80211_IBSS_AUTO_CHANNEL_SEL
= BIT(0),
342 IEEE80211_IBSS_AUTO_BSSID_SEL
= BIT(1),
343 IEEE80211_IBSS_BSSID_SET
= BIT(2),
344 IEEE80211_IBSS_PREV_BSSID_SET
= BIT(3),
345 IEEE80211_IBSS_SSID_SET
= BIT(4),
348 enum ieee80211_ibss_request
{
349 IEEE80211_IBSS_REQ_RUN
= 0,
352 struct ieee80211_if_ibss
{
353 struct timer_list timer
;
354 struct work_struct work
;
356 struct sk_buff_head skb_queue
;
358 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
365 unsigned long request
;
367 unsigned long ibss_join_req
;
368 struct sk_buff
*probe_resp
; /* ProbeResp template for IBSS */
371 IEEE80211_IBSS_MLME_SEARCH
,
372 IEEE80211_IBSS_MLME_JOINED
,
376 struct ieee80211_if_mesh
{
377 struct work_struct work
;
378 struct timer_list housekeeping_timer
;
379 struct timer_list mesh_path_timer
;
380 struct sk_buff_head skb_queue
;
384 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
386 /* Active Path Selection Protocol Identifier */
388 /* Active Path Selection Metric Identifier */
390 /* Congestion Control Mode Identifier */
392 /* Local mesh Destination Sequence Number */
394 /* Last used PREQ ID */
397 /* Timestamp of last DSN update */
398 unsigned long last_dsn_update
;
399 /* Timestamp of last DSN sent */
400 unsigned long last_preq
;
401 struct mesh_rmc
*rmc
;
402 spinlock_t mesh_preq_queue_lock
;
403 struct mesh_preq_queue preq_queue
;
405 struct mesh_stats mshstats
;
406 struct mesh_config mshcfg
;
408 bool accepting_plinks
;
411 #ifdef CONFIG_MAC80211_MESH
412 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
413 do { (msh)->mshstats.name++; } while (0)
415 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
420 * enum ieee80211_sub_if_data_flags - virtual interface flags
422 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
423 * @IEEE80211_SDATA_PROMISC: interface is promisc
424 * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
425 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
426 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
427 * associated stations and deliver multicast frames both
428 * back to wireless media and to the local net stack.
430 enum ieee80211_sub_if_data_flags
{
431 IEEE80211_SDATA_ALLMULTI
= BIT(0),
432 IEEE80211_SDATA_PROMISC
= BIT(1),
433 IEEE80211_SDATA_USERSPACE_MLME
= BIT(2),
434 IEEE80211_SDATA_OPERATING_GMODE
= BIT(3),
435 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(4),
438 struct ieee80211_sub_if_data
{
439 struct list_head list
;
441 struct wireless_dev wdev
;
444 struct list_head key_list
;
446 struct net_device
*dev
;
447 struct ieee80211_local
*local
;
451 int drop_unencrypted
;
453 /* Fragment table for host-based reassembly */
454 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
455 unsigned int fragment_next
;
457 #define NUM_DEFAULT_KEYS 4
458 #define NUM_DEFAULT_MGMT_KEYS 2
459 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
460 struct ieee80211_key
*default_key
;
461 struct ieee80211_key
*default_mgmt_key
;
466 * AP this belongs to: self in AP mode and
467 * corresponding AP in VLAN mode, NULL for
468 * all others (might be needed later in IBSS)
470 struct ieee80211_if_ap
*bss
;
472 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
473 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
476 struct ieee80211_if_ap ap
;
477 struct ieee80211_if_wds wds
;
478 struct ieee80211_if_vlan vlan
;
479 struct ieee80211_if_managed mgd
;
480 struct ieee80211_if_ibss ibss
;
481 #ifdef CONFIG_MAC80211_MESH
482 struct ieee80211_if_mesh mesh
;
487 #ifdef CONFIG_MAC80211_DEBUGFS
488 struct dentry
*debugfsdir
;
491 struct dentry
*drop_unencrypted
;
492 struct dentry
*state
;
493 struct dentry
*bssid
;
494 struct dentry
*prev_bssid
;
495 struct dentry
*ssid_len
;
497 struct dentry
*ap_capab
;
498 struct dentry
*capab
;
499 struct dentry
*extra_ie_len
;
500 struct dentry
*auth_tries
;
501 struct dentry
*assoc_tries
;
502 struct dentry
*auth_algs
;
503 struct dentry
*auth_alg
;
504 struct dentry
*auth_transaction
;
505 struct dentry
*flags
;
506 struct dentry
*force_unicast_rateidx
;
507 struct dentry
*max_ratectrl_rateidx
;
510 struct dentry
*drop_unencrypted
;
511 struct dentry
*num_sta_ps
;
512 struct dentry
*dtim_count
;
513 struct dentry
*force_unicast_rateidx
;
514 struct dentry
*max_ratectrl_rateidx
;
515 struct dentry
*num_buffered_multicast
;
518 struct dentry
*drop_unencrypted
;
520 struct dentry
*force_unicast_rateidx
;
521 struct dentry
*max_ratectrl_rateidx
;
524 struct dentry
*drop_unencrypted
;
525 struct dentry
*force_unicast_rateidx
;
526 struct dentry
*max_ratectrl_rateidx
;
533 struct dentry
*default_key
;
534 struct dentry
*default_mgmt_key
;
537 #ifdef CONFIG_MAC80211_MESH
538 struct dentry
*mesh_stats_dir
;
540 struct dentry
*fwded_frames
;
541 struct dentry
*dropped_frames_ttl
;
542 struct dentry
*dropped_frames_no_route
;
543 struct dentry
*estab_plinks
;
544 struct timer_list mesh_path_timer
;
547 struct dentry
*mesh_config_dir
;
549 struct dentry
*dot11MeshRetryTimeout
;
550 struct dentry
*dot11MeshConfirmTimeout
;
551 struct dentry
*dot11MeshHoldingTimeout
;
552 struct dentry
*dot11MeshMaxRetries
;
553 struct dentry
*dot11MeshTTL
;
554 struct dentry
*auto_open_plinks
;
555 struct dentry
*dot11MeshMaxPeerLinks
;
556 struct dentry
*dot11MeshHWMPactivePathTimeout
;
557 struct dentry
*dot11MeshHWMPpreqMinInterval
;
558 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
559 struct dentry
*dot11MeshHWMPmaxPREQretries
;
560 struct dentry
*path_refresh_time
;
561 struct dentry
*min_discovery_timeout
;
566 /* must be last, dynamically sized area in this! */
567 struct ieee80211_vif vif
;
571 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
573 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
577 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data
*sdata
,
578 u8 mesh_id_len
, u8
*mesh_id
)
580 #ifdef CONFIG_MAC80211_MESH
581 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
582 ifmsh
->mesh_id_len
= mesh_id_len
;
583 memcpy(ifmsh
->mesh_id
, mesh_id
, mesh_id_len
);
590 IEEE80211_RX_MSG
= 1,
591 IEEE80211_TX_STATUS_MSG
= 2,
592 IEEE80211_DELBA_MSG
= 3,
593 IEEE80211_ADDBA_MSG
= 4,
596 enum queue_stop_reason
{
597 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
598 IEEE80211_QUEUE_STOP_REASON_PS
,
599 IEEE80211_QUEUE_STOP_REASON_CSA
,
600 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
603 struct ieee80211_master_priv
{
604 struct ieee80211_local
*local
;
607 struct ieee80211_local
{
608 /* embed the driver visible part.
609 * don't cast (use the static inlines below), but we keep
610 * it first anyway so they become a no-op */
611 struct ieee80211_hw hw
;
613 const struct ieee80211_ops
*ops
;
615 /* AC queue corresponding to each AMPDU queue */
616 s8 ampdu_ac_queue
[IEEE80211_MAX_AMPDU_QUEUES
];
617 unsigned int amdpu_ac_stop_refcnt
[IEEE80211_MAX_AMPDU_QUEUES
];
619 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
+
620 IEEE80211_MAX_AMPDU_QUEUES
];
621 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
622 spinlock_t queue_stop_reason_lock
;
624 struct net_device
*mdev
; /* wmaster# - "master" 802.11 device */
626 int monitors
, cooked_mntrs
;
627 /* number of interfaces with corresponding FIF_ flags */
628 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
;
629 unsigned int filter_flags
; /* FIF_* */
630 struct iw_statistics wstats
;
631 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
632 int tx_headroom
; /* required headroom for hardware/radiotap */
634 /* Tasklet and skb queue to process calls from IRQ mode. All frames
635 * added to skb_queue will be processed, but frames in
636 * skb_queue_unreliable may be dropped if the total length of these
637 * queues increases over the limit. */
638 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
639 struct tasklet_struct tasklet
;
640 struct sk_buff_head skb_queue
;
641 struct sk_buff_head skb_queue_unreliable
;
645 * The lock only protects the list, hash, timer and counter
646 * against manipulation, reads are done in RCU. Additionally,
647 * the lock protects each BSS's TIM bitmap.
650 unsigned long num_sta
;
651 struct list_head sta_list
;
652 struct list_head sta_flush_list
;
653 struct work_struct sta_flush_work
;
654 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
655 struct timer_list sta_cleanup
;
657 unsigned long queues_pending
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
658 unsigned long queues_pending_run
[BITS_TO_LONGS(IEEE80211_MAX_QUEUES
)];
659 struct ieee80211_tx_stored_packet pending_packet
[IEEE80211_MAX_QUEUES
];
660 struct tasklet_struct tx_pending_tasklet
;
662 /* number of interfaces with corresponding IFF_ flags */
663 atomic_t iff_allmultis
, iff_promiscs
;
665 struct rate_control_ref
*rate_ctrl
;
668 int fragmentation_threshold
;
670 struct crypto_blkcipher
*wep_tx_tfm
;
671 struct crypto_blkcipher
*wep_rx_tfm
;
675 struct list_head interfaces
;
676 struct mutex iflist_mtx
;
679 * Key lock, protects sdata's key_list and sta_info's
680 * key pointers (write access, they're RCU.)
685 /* Scanning and BSS list */
686 bool sw_scanning
, hw_scanning
;
687 struct cfg80211_ssid scan_ssid
;
688 struct cfg80211_scan_request int_scan_req
;
689 struct cfg80211_scan_request
*scan_req
;
690 struct ieee80211_channel
*scan_channel
;
691 int scan_channel_idx
;
693 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
694 unsigned long last_scan_completed
;
695 struct delayed_work scan_work
;
696 struct ieee80211_sub_if_data
*scan_sdata
;
697 enum nl80211_channel_type oper_channel_type
;
698 struct ieee80211_channel
*oper_channel
, *csa_channel
;
701 /* dot11CountersTable */
702 u32 dot11TransmittedFragmentCount
;
703 u32 dot11MulticastTransmittedFrameCount
;
704 u32 dot11FailedCount
;
706 u32 dot11MultipleRetryCount
;
707 u32 dot11FrameDuplicateCount
;
708 u32 dot11ReceivedFragmentCount
;
709 u32 dot11MulticastReceivedFrameCount
;
710 u32 dot11TransmittedFrameCount
;
712 #ifdef CONFIG_MAC80211_LEDS
713 int tx_led_counter
, rx_led_counter
;
714 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
715 char tx_led_name
[32], rx_led_name
[32],
716 assoc_led_name
[32], radio_led_name
[32];
719 #ifdef CONFIG_MAC80211_DEBUGFS
720 struct work_struct sta_debugfs_add
;
723 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
724 /* TX/RX handler statistics */
725 unsigned int tx_handlers_drop
;
726 unsigned int tx_handlers_queued
;
727 unsigned int tx_handlers_drop_unencrypted
;
728 unsigned int tx_handlers_drop_fragment
;
729 unsigned int tx_handlers_drop_wep
;
730 unsigned int tx_handlers_drop_not_assoc
;
731 unsigned int tx_handlers_drop_unauth_port
;
732 unsigned int rx_handlers_drop
;
733 unsigned int rx_handlers_queued
;
734 unsigned int rx_handlers_drop_nullfunc
;
735 unsigned int rx_handlers_drop_defrag
;
736 unsigned int rx_handlers_drop_short
;
737 unsigned int rx_handlers_drop_passive_scan
;
738 unsigned int tx_expand_skb_head
;
739 unsigned int tx_expand_skb_head_cloned
;
740 unsigned int rx_expand_skb_head
;
741 unsigned int rx_expand_skb_head2
;
742 unsigned int rx_handlers_fragments
;
743 unsigned int tx_status_drop
;
744 #define I802_DEBUG_INC(c) (c)++
745 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
746 #define I802_DEBUG_INC(c) do { } while (0)
747 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
750 int total_ps_buffered
; /* total number of all buffered unicast and
751 * multicast packets for power saving stations
753 int wifi_wme_noack_test
;
754 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
758 struct work_struct dynamic_ps_enable_work
;
759 struct work_struct dynamic_ps_disable_work
;
760 struct timer_list dynamic_ps_timer
;
762 int user_power_level
; /* in dBm */
763 int power_constr_level
; /* in dBm */
765 #ifdef CONFIG_MAC80211_DEBUGFS
766 struct local_debugfsdentries
{
767 struct dentry
*rcdir
;
768 struct dentry
*rcname
;
769 struct dentry
*frequency
;
770 struct dentry
*rts_threshold
;
771 struct dentry
*fragmentation_threshold
;
772 struct dentry
*short_retry_limit
;
773 struct dentry
*long_retry_limit
;
774 struct dentry
*total_ps_buffered
;
775 struct dentry
*wep_iv
;
777 struct dentry
*statistics
;
778 struct local_debugfsdentries_statsdentries
{
779 struct dentry
*transmitted_fragment_count
;
780 struct dentry
*multicast_transmitted_frame_count
;
781 struct dentry
*failed_count
;
782 struct dentry
*retry_count
;
783 struct dentry
*multiple_retry_count
;
784 struct dentry
*frame_duplicate_count
;
785 struct dentry
*received_fragment_count
;
786 struct dentry
*multicast_received_frame_count
;
787 struct dentry
*transmitted_frame_count
;
788 struct dentry
*wep_undecryptable_count
;
789 struct dentry
*num_scans
;
790 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
791 struct dentry
*tx_handlers_drop
;
792 struct dentry
*tx_handlers_queued
;
793 struct dentry
*tx_handlers_drop_unencrypted
;
794 struct dentry
*tx_handlers_drop_fragment
;
795 struct dentry
*tx_handlers_drop_wep
;
796 struct dentry
*tx_handlers_drop_not_assoc
;
797 struct dentry
*tx_handlers_drop_unauth_port
;
798 struct dentry
*rx_handlers_drop
;
799 struct dentry
*rx_handlers_queued
;
800 struct dentry
*rx_handlers_drop_nullfunc
;
801 struct dentry
*rx_handlers_drop_defrag
;
802 struct dentry
*rx_handlers_drop_short
;
803 struct dentry
*rx_handlers_drop_passive_scan
;
804 struct dentry
*tx_expand_skb_head
;
805 struct dentry
*tx_expand_skb_head_cloned
;
806 struct dentry
*rx_expand_skb_head
;
807 struct dentry
*rx_expand_skb_head2
;
808 struct dentry
*rx_handlers_fragments
;
809 struct dentry
*tx_status_drop
;
811 struct dentry
*dot11ACKFailureCount
;
812 struct dentry
*dot11RTSFailureCount
;
813 struct dentry
*dot11FCSErrorCount
;
814 struct dentry
*dot11RTSSuccessCount
;
816 struct dentry
*stations
;
822 static inline struct ieee80211_sub_if_data
*
823 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
825 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
827 BUG_ON(!local
|| local
->mdev
== dev
);
829 return netdev_priv(dev
);
832 /* this struct represents 802.11n's RA/TID combination */
833 struct ieee80211_ra_tid
{
838 /* Parsed Information Elements */
839 struct ieee802_11_elems
{
843 /* pointers to IEs */
858 struct ieee80211_ht_cap
*ht_cap_elem
;
859 struct ieee80211_ht_info
*ht_info_elem
;
869 u8
*quiet_elem
; /* first quite element */
872 /* length of them, respectively */
884 u8 ext_supp_rates_len
;
893 u8 ch_switch_elem_len
;
895 u8 pwr_constr_elem_len
;
897 u8 num_of_quiet_elem
; /* can be more the one */
901 static inline struct ieee80211_local
*hw_to_local(
902 struct ieee80211_hw
*hw
)
904 return container_of(hw
, struct ieee80211_local
, hw
);
907 static inline struct ieee80211_hw
*local_to_hw(
908 struct ieee80211_local
*local
)
914 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
916 return compare_ether_addr(raddr
, addr
) == 0 ||
917 is_broadcast_ether_addr(raddr
);
921 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
922 int ieee80211_if_config(struct ieee80211_sub_if_data
*sdata
, u32 changed
);
923 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
924 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
926 void ieee80211_configure_filter(struct ieee80211_local
*local
);
927 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
929 /* wireless extensions */
930 extern const struct iw_handler_def ieee80211_iw_handler_def
;
933 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
934 ieee80211_rx_result
ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data
*sdata
,
936 struct ieee80211_rx_status
*rx_status
);
937 int ieee80211_sta_commit(struct ieee80211_sub_if_data
*sdata
);
938 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t len
);
939 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t *len
);
940 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data
*sdata
, u8
*bssid
);
941 void ieee80211_sta_req_auth(struct ieee80211_sub_if_data
*sdata
);
942 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
943 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data
*sdata
, u16 reason
);
944 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
945 struct ieee80211_sub_if_data
*sdata
);
948 int ieee80211_ibss_commit(struct ieee80211_sub_if_data
*sdata
);
949 int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t len
);
950 int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data
*sdata
, char *ssid
, size_t *len
);
951 int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data
*sdata
, u8
*bssid
);
952 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
953 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
955 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
956 struct ieee80211_rx_status
*rx_status
);
957 struct sta_info
*ieee80211_ibss_add_sta(struct ieee80211_sub_if_data
*sdata
,
958 u8
*bssid
, u8
*addr
, u32 supp_rates
);
960 /* scan/BSS handling */
961 void ieee80211_scan_work(struct work_struct
*work
);
962 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
963 struct cfg80211_scan_request
*req
);
964 int ieee80211_scan_results(struct ieee80211_local
*local
,
965 struct iw_request_info
*info
,
966 char *buf
, size_t len
);
968 ieee80211_scan_rx(struct ieee80211_sub_if_data
*sdata
,
970 struct ieee80211_rx_status
*rx_status
);
971 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data
*sdata
,
972 char *ie
, size_t len
);
974 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
975 int ieee80211_start_scan(struct ieee80211_sub_if_data
*scan_sdata
,
976 struct cfg80211_scan_request
*req
);
977 struct ieee80211_bss
*
978 ieee80211_bss_info_update(struct ieee80211_local
*local
,
979 struct ieee80211_rx_status
*rx_status
,
980 struct ieee80211_mgmt
*mgmt
,
982 struct ieee802_11_elems
*elems
,
983 struct ieee80211_channel
*channel
,
985 struct ieee80211_bss
*
986 ieee80211_rx_bss_get(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
987 u8
*ssid
, u8 ssid_len
);
988 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
989 struct ieee80211_bss
*bss
);
990 void ieee80211_rx_bss_remove(struct ieee80211_sub_if_data
*sdata
, u8
*bssid
,
991 int freq
, u8
*ssid
, u8 ssid_len
);
993 /* interface handling */
994 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
995 struct net_device
**new_dev
, enum nl80211_iftype type
,
996 struct vif_params
*params
);
997 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
998 enum nl80211_iftype type
);
999 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1000 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1003 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1004 void ieee80211_tx_pending(unsigned long data
);
1005 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
1006 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
1007 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
1010 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band
*sband
,
1011 struct ieee80211_ht_cap
*ht_cap_ie
,
1012 struct ieee80211_sta_ht_cap
*ht_cap
);
1013 u32
ieee80211_enable_ht(struct ieee80211_sub_if_data
*sdata
,
1014 struct ieee80211_ht_info
*hti
,
1015 u16 ap_ht_cap_flags
);
1016 void ieee80211_send_bar(struct ieee80211_sub_if_data
*sdata
, u8
*ra
, u16 tid
, u16 ssn
);
1017 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1018 const u8
*da
, u16 tid
,
1019 u16 initiator
, u16 reason_code
);
1021 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data
*sdata
, u8
*da
,
1022 u16 tid
, u16 initiator
, u16 reason
);
1023 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1024 u16 initiator
, u16 reason
);
1025 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
);
1026 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1027 struct sta_info
*sta
,
1028 struct ieee80211_mgmt
*mgmt
, size_t len
);
1029 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1030 struct sta_info
*sta
,
1031 struct ieee80211_mgmt
*mgmt
,
1033 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1034 struct sta_info
*sta
,
1035 struct ieee80211_mgmt
*mgmt
,
1038 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1039 enum ieee80211_back_parties initiator
);
1041 /* Spectrum management */
1042 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1043 struct ieee80211_mgmt
*mgmt
,
1045 void ieee80211_chswitch_timer(unsigned long data
);
1046 void ieee80211_chswitch_work(struct work_struct
*work
);
1047 void ieee80211_process_chanswitch(struct ieee80211_sub_if_data
*sdata
,
1048 struct ieee80211_channel_sw_ie
*sw_elem
,
1049 struct ieee80211_bss
*bss
);
1050 void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data
*sdata
,
1051 u16 capab_info
, u8
*pwr_constr_elem
,
1052 u8 pwr_constr_elem_len
);
1054 /* Suspend/resume */
1055 int __ieee80211_suspend(struct ieee80211_hw
*hw
);
1056 int __ieee80211_resume(struct ieee80211_hw
*hw
);
1058 /* utility functions/constants */
1059 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
1060 extern const unsigned char rfc1042_header
[6];
1061 extern const unsigned char bridge_tunnel_header
[6];
1062 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1063 enum nl80211_iftype type
);
1064 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
1065 int rate
, int erp
, int short_preamble
);
1066 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1067 struct ieee80211_hdr
*hdr
);
1068 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
);
1069 void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1071 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1072 struct ieee802_11_elems
*elems
);
1073 int ieee80211_set_freq(struct ieee80211_sub_if_data
*sdata
, int freq
);
1074 u32
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1075 enum ieee80211_band band
);
1077 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1078 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1079 void ieee80211_dynamic_ps_timer(unsigned long data
);
1080 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1081 struct ieee80211_sub_if_data
*sdata
,
1084 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1085 enum queue_stop_reason reason
);
1086 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1087 enum queue_stop_reason reason
);
1088 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1089 enum queue_stop_reason reason
);
1090 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1091 enum queue_stop_reason reason
);
1093 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1094 u16 transaction
, u16 auth_alg
,
1095 u8
*extra
, size_t extra_len
,
1096 const u8
*bssid
, int encrypt
);
1097 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
1098 u8
*ssid
, size_t ssid_len
,
1099 u8
*ie
, size_t ie_len
);
1101 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data
*sdata
,
1102 const size_t supp_rates_len
,
1103 const u8
*supp_rates
);
1104 u32
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
1105 struct ieee802_11_elems
*elems
,
1106 enum ieee80211_band band
);
1108 #ifdef CONFIG_MAC80211_NOINLINE
1109 #define debug_noinline noinline
1111 #define debug_noinline
1114 #endif /* IEEE80211_I_H */