2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
14 #include <linux/kernel.h>
15 #include <linux/device.h>
16 #include <linux/if_ether.h>
17 #include <linux/interrupt.h>
18 #include <linux/list.h>
19 #include <linux/netdevice.h>
20 #include <linux/skbuff.h>
21 #include <linux/workqueue.h>
22 #include <linux/types.h>
23 #include <linux/spinlock.h>
24 #include <linux/etherdevice.h>
25 #include <net/wireless.h>
26 #include "ieee80211_key.h"
29 /* ieee80211.o internal definitions, etc. These are not included into
30 * low-level drivers. */
33 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
34 #endif /* ETH_P_PAE */
36 #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
38 struct ieee80211_local
;
40 #define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
42 /* Maximum number of broadcast/multicast frames to buffer when some of the
43 * associated stations are using power saving. */
44 #define AP_MAX_BC_BUFFER 128
46 /* Maximum number of frames buffered to all STAs, including multicast frames.
47 * Note: increasing this limit increases the potential memory requirement. Each
48 * frame can be up to about 2 kB long. */
49 #define TOTAL_MAX_TX_BUFFER 512
51 /* Required encryption head and tailroom */
52 #define IEEE80211_ENCRYPT_HEADROOM 8
53 #define IEEE80211_ENCRYPT_TAILROOM 12
55 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
56 * reception of at least three fragmented frames. This limit can be increased
57 * by changing this define, at the cost of slower frame reassembly and
58 * increased memory use (about 2 kB of RAM per entry). */
59 #define IEEE80211_FRAGMENT_MAX 4
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 */
72 struct bss_mesh_config
{
76 u32 channel_precedence
;
81 struct ieee80211_sta_bss
{
82 struct list_head list
;
83 struct ieee80211_sta_bss
*hnext
;
89 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
90 u16 capability
; /* host byte order */
91 enum ieee80211_band band
;
93 int rssi
, signal
, noise
;
102 #ifdef CONFIG_MAC80211_MESH
105 struct bss_mesh_config
*mesh_cfg
;
107 #define IEEE80211_MAX_SUPP_RATES 32
108 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
109 size_t supp_rates_len
;
114 unsigned long last_update
;
116 /* during assocation, we save an ERP value from a probe response so
117 * that we can feed ERP info to the driver when handling the
118 * association completes. these fields probably won't be up-to-date
119 * otherwise, you probably don't want to use them. */
125 struct bss_mesh_config
*bss_mesh_cfg(struct ieee80211_sta_bss
*bss
)
127 #ifdef CONFIG_MAC80211_MESH
128 return bss
->mesh_cfg
;
133 static inline u8
*bss_mesh_id(struct ieee80211_sta_bss
*bss
)
135 #ifdef CONFIG_MAC80211_MESH
141 static inline u8
bss_mesh_id_len(struct ieee80211_sta_bss
*bss
)
143 #ifdef CONFIG_MAC80211_MESH
144 return bss
->mesh_id_len
;
150 typedef unsigned __bitwise__ ieee80211_tx_result
;
151 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
152 #define TX_DROP ((__force ieee80211_tx_result) 1u)
153 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
155 #define IEEE80211_TX_FRAGMENTED BIT(0)
156 #define IEEE80211_TX_UNICAST BIT(1)
157 #define IEEE80211_TX_PS_BUFFERED BIT(2)
158 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
159 #define IEEE80211_TX_INJECTED BIT(4)
161 struct ieee80211_tx_data
{
163 struct net_device
*dev
;
164 struct ieee80211_local
*local
;
165 struct ieee80211_sub_if_data
*sdata
;
166 struct sta_info
*sta
;
167 struct ieee80211_key
*key
;
169 struct ieee80211_tx_control
*control
;
170 struct ieee80211_channel
*channel
;
171 struct ieee80211_rate
*rate
;
172 /* use this rate (if set) for last fragment; rate can
173 * be set to lower rate for the first fragments, e.g.,
174 * when using CTS protection with IEEE 802.11g. */
175 struct ieee80211_rate
*last_frag_rate
;
177 /* Extra fragments (in addition to the first fragment
179 struct sk_buff
**extra_frag
;
187 typedef unsigned __bitwise__ ieee80211_rx_result
;
188 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
189 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
190 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
191 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
193 #define IEEE80211_RX_IN_SCAN BIT(0)
194 /* frame is destined to interface currently processed (incl. multicast frames) */
195 #define IEEE80211_RX_RA_MATCH BIT(1)
196 #define IEEE80211_RX_AMSDU BIT(2)
197 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
198 #define IEEE80211_RX_FRAGMENTED BIT(4)
200 struct ieee80211_rx_data
{
202 struct net_device
*dev
;
203 struct ieee80211_local
*local
;
204 struct ieee80211_sub_if_data
*sdata
;
205 struct sta_info
*sta
;
206 struct ieee80211_key
*key
;
207 struct ieee80211_rx_status
*status
;
208 struct ieee80211_rate
*rate
;
212 int sent_ps_buffered
;
219 /* flags used in struct ieee80211_tx_packet_data.flags */
220 #define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
221 #define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
222 #define IEEE80211_TXPD_REQUEUE BIT(2)
223 #define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
224 #define IEEE80211_TXPD_AMPDU BIT(4)
225 /* Stored in sk_buff->cb */
226 struct ieee80211_tx_packet_data
{
228 unsigned long jiffies
;
233 struct ieee80211_tx_stored_packet
{
234 struct ieee80211_tx_control control
;
236 struct sk_buff
**extra_frag
;
237 struct ieee80211_rate
*last_frag_rate
;
239 unsigned int last_frag_rate_ctrl_probe
;
244 int head_len
, tail_len
;
248 struct ieee80211_if_ap
{
249 struct beacon_data
*beacon
;
251 struct list_head vlans
;
253 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
256 /* yes, this looks ugly, but guarantees that we can later use
258 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
259 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
260 struct sk_buff_head ps_bc_buf
;
261 atomic_t num_sta_ps
; /* number of stations in PS mode */
263 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
264 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
265 int num_beacons
; /* number of TXed beacon frames for this BSS */
268 struct ieee80211_if_wds
{
269 struct sta_info
*sta
;
270 u8 remote_addr
[ETH_ALEN
];
273 struct ieee80211_if_vlan
{
274 struct ieee80211_sub_if_data
*ap
;
275 struct list_head list
;
279 __u32 fwded_frames
; /* Mesh forwarded frames */
280 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
281 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
282 atomic_t estab_plinks
;
285 #define PREQ_Q_F_START 0x1
286 #define PREQ_Q_F_REFRESH 0x2
287 struct mesh_preq_queue
{
288 struct list_head list
;
295 /* Mesh plink management parameters */
296 u16 dot11MeshRetryTimeout
;
297 u16 dot11MeshConfirmTimeout
;
298 u16 dot11MeshHoldingTimeout
;
299 u16 dot11MeshMaxPeerLinks
;
300 u8 dot11MeshMaxRetries
;
302 bool auto_open_plinks
;
303 /* HWMP parameters */
304 u8 dot11MeshHWMPmaxPREQretries
;
305 u32 path_refresh_time
;
306 u16 min_discovery_timeout
;
307 u32 dot11MeshHWMPactivePathTimeout
;
308 u16 dot11MeshHWMPpreqMinInterval
;
309 u16 dot11MeshHWMPnetDiameterTraversalTime
;
313 /* flags used in struct ieee80211_if_sta.flags */
314 #define IEEE80211_STA_SSID_SET BIT(0)
315 #define IEEE80211_STA_BSSID_SET BIT(1)
316 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
317 #define IEEE80211_STA_AUTHENTICATED BIT(3)
318 #define IEEE80211_STA_ASSOCIATED BIT(4)
319 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
320 #define IEEE80211_STA_CREATE_IBSS BIT(6)
321 #define IEEE80211_STA_MIXED_CELL BIT(7)
322 #define IEEE80211_STA_WMM_ENABLED BIT(8)
323 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
324 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
325 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
326 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
327 struct ieee80211_if_sta
{
328 struct timer_list timer
;
329 struct work_struct work
;
330 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
331 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
333 IEEE80211_DISABLED
, IEEE80211_AUTHENTICATE
,
334 IEEE80211_ASSOCIATE
, IEEE80211_ASSOCIATED
,
335 IEEE80211_IBSS_SEARCH
, IEEE80211_IBSS_JOINED
,
339 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
340 size_t scan_ssid_len
;
341 #ifdef CONFIG_MAC80211_MESH
342 struct timer_list mesh_path_timer
;
343 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
345 /* Active Path Selection Protocol Identifier */
347 /* Active Path Selection Metric Identifier */
349 /* Congestion Control Mode Identifier */
351 /* Local mesh Destination Sequence Number */
353 /* Last used PREQ ID */
356 /* Timestamp of last DSN update */
357 unsigned long last_dsn_update
;
358 /* Timestamp of last DSN sent */
359 unsigned long last_preq
;
360 struct mesh_rmc
*rmc
;
361 spinlock_t mesh_preq_queue_lock
;
362 struct mesh_preq_queue preq_queue
;
364 struct mesh_stats mshstats
;
365 struct mesh_config mshcfg
;
367 bool accepting_plinks
;
371 u8
*extra_ie
; /* to be added to the end of AssocReq */
374 /* The last AssocReq/Resp IEs */
375 u8
*assocreq_ies
, *assocresp_ies
;
376 size_t assocreq_ies_len
, assocresp_ies_len
;
378 struct sk_buff_head skb_queue
;
380 int auth_tries
, assoc_tries
;
382 unsigned long request
;
384 unsigned long last_probe
;
387 #define IEEE80211_STA_REQ_SCAN 0
388 #define IEEE80211_STA_REQ_AUTH 1
389 #define IEEE80211_STA_REQ_RUN 2
391 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
392 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
393 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
394 unsigned int auth_algs
; /* bitfield of allowed auth algs */
395 int auth_alg
; /* currently used IEEE 802.11 authentication algorithm */
396 int auth_transaction
;
398 unsigned long ibss_join_req
;
399 struct sk_buff
*probe_resp
; /* ProbeResp template for IBSS */
400 u32 supp_rates_bits
[IEEE80211_NUM_BANDS
];
402 int wmm_last_param_set
;
403 int num_beacons
; /* number of TXed beacon frames by this STA */
406 static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta
*ifsta
,
407 u8 mesh_id_len
, u8
*mesh_id
)
409 #ifdef CONFIG_MAC80211_MESH
410 ifsta
->mesh_id_len
= mesh_id_len
;
411 memcpy(ifsta
->mesh_id
, mesh_id
, mesh_id_len
);
415 #ifdef CONFIG_MAC80211_MESH
416 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
417 do { (sta)->mshstats.name++; } while (0)
419 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
423 /* flags used in struct ieee80211_sub_if_data.flags */
424 #define IEEE80211_SDATA_ALLMULTI BIT(0)
425 #define IEEE80211_SDATA_PROMISC BIT(1)
426 #define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
427 #define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
428 struct ieee80211_sub_if_data
{
429 struct list_head list
;
431 struct wireless_dev wdev
;
434 struct list_head key_list
;
436 struct net_device
*dev
;
437 struct ieee80211_local
*local
;
441 int drop_unencrypted
;
444 * basic rates of this AP or the AP we're associated to
450 /* Fragment table for host-based reassembly */
451 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
452 unsigned int fragment_next
;
454 #define NUM_DEFAULT_KEYS 4
455 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
];
456 struct ieee80211_key
*default_key
;
459 * BSS configuration for this interface.
461 * FIXME: I feel bad putting this here when we already have a
462 * bss pointer, but the bss pointer is just wrong when
463 * you have multiple virtual STA mode interfaces...
464 * This needs to be fixed.
466 struct ieee80211_bss_conf bss_conf
;
467 struct ieee80211_if_ap
*bss
; /* BSS that this device belongs to */
470 struct ieee80211_if_ap ap
;
471 struct ieee80211_if_wds wds
;
472 struct ieee80211_if_vlan vlan
;
473 struct ieee80211_if_sta sta
;
479 #ifdef CONFIG_MAC80211_DEBUGFS
480 struct dentry
*debugfsdir
;
483 struct dentry
*channel_use
;
484 struct dentry
*drop_unencrypted
;
485 struct dentry
*state
;
486 struct dentry
*bssid
;
487 struct dentry
*prev_bssid
;
488 struct dentry
*ssid_len
;
490 struct dentry
*ap_capab
;
491 struct dentry
*capab
;
492 struct dentry
*extra_ie_len
;
493 struct dentry
*auth_tries
;
494 struct dentry
*assoc_tries
;
495 struct dentry
*auth_algs
;
496 struct dentry
*auth_alg
;
497 struct dentry
*auth_transaction
;
498 struct dentry
*flags
;
499 struct dentry
*num_beacons_sta
;
502 struct dentry
*channel_use
;
503 struct dentry
*drop_unencrypted
;
504 struct dentry
*num_sta_ps
;
505 struct dentry
*dtim_count
;
506 struct dentry
*num_beacons
;
507 struct dentry
*force_unicast_rateidx
;
508 struct dentry
*max_ratectrl_rateidx
;
509 struct dentry
*num_buffered_multicast
;
512 struct dentry
*channel_use
;
513 struct dentry
*drop_unencrypted
;
517 struct dentry
*channel_use
;
518 struct dentry
*drop_unencrypted
;
523 struct dentry
*default_key
;
526 #ifdef CONFIG_MAC80211_MESH
527 struct dentry
*mesh_stats_dir
;
529 struct dentry
*fwded_frames
;
530 struct dentry
*dropped_frames_ttl
;
531 struct dentry
*dropped_frames_no_route
;
532 struct dentry
*estab_plinks
;
533 struct timer_list mesh_path_timer
;
536 struct dentry
*mesh_config_dir
;
538 struct dentry
*dot11MeshRetryTimeout
;
539 struct dentry
*dot11MeshConfirmTimeout
;
540 struct dentry
*dot11MeshHoldingTimeout
;
541 struct dentry
*dot11MeshMaxRetries
;
542 struct dentry
*dot11MeshTTL
;
543 struct dentry
*auto_open_plinks
;
544 struct dentry
*dot11MeshMaxPeerLinks
;
545 struct dentry
*dot11MeshHWMPactivePathTimeout
;
546 struct dentry
*dot11MeshHWMPpreqMinInterval
;
547 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
548 struct dentry
*dot11MeshHWMPmaxPREQretries
;
549 struct dentry
*path_refresh_time
;
550 struct dentry
*min_discovery_timeout
;
555 /* must be last, dynamically sized area in this! */
556 struct ieee80211_vif vif
;
560 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
562 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
565 #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
568 IEEE80211_RX_MSG
= 1,
569 IEEE80211_TX_STATUS_MSG
= 2,
570 IEEE80211_DELBA_MSG
= 3,
571 IEEE80211_ADDBA_MSG
= 4,
574 struct ieee80211_local
{
575 /* embed the driver visible part.
576 * don't cast (use the static inlines below), but we keep
577 * it first anyway so they become a no-op */
578 struct ieee80211_hw hw
;
580 const struct ieee80211_ops
*ops
;
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
;
590 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
591 int tx_headroom
; /* required headroom for hardware/radiotap */
594 IEEE80211_DEV_UNINITIALIZED
= 0,
595 IEEE80211_DEV_REGISTERED
,
596 IEEE80211_DEV_UNREGISTERED
,
599 /* Tasklet and skb queue to process calls from IRQ mode. All frames
600 * added to skb_queue will be processed, but frames in
601 * skb_queue_unreliable may be dropped if the total length of these
602 * queues increases over the limit. */
603 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
604 struct tasklet_struct tasklet
;
605 struct sk_buff_head skb_queue
;
606 struct sk_buff_head skb_queue_unreliable
;
610 * The lock only protects the list, hash, timer and counter
611 * against manipulation, reads are done in RCU. Additionally,
612 * the lock protects each BSS's TIM bitmap and a few items
613 * in a STA info structure.
616 unsigned long num_sta
;
617 struct list_head sta_list
;
618 struct list_head sta_flush_list
;
619 struct work_struct sta_flush_work
;
620 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
621 struct timer_list sta_cleanup
;
623 unsigned long state
[NUM_TX_DATA_QUEUES_AMPDU
];
624 struct ieee80211_tx_stored_packet pending_packet
[NUM_TX_DATA_QUEUES_AMPDU
];
625 struct tasklet_struct tx_pending_tasklet
;
627 /* number of interfaces with corresponding IFF_ flags */
628 atomic_t iff_allmultis
, iff_promiscs
;
630 struct rate_control_ref
*rate_ctrl
;
633 int fragmentation_threshold
;
634 int short_retry_limit
; /* dot11ShortRetryLimit */
635 int long_retry_limit
; /* dot11LongRetryLimit */
637 struct crypto_blkcipher
*wep_tx_tfm
;
638 struct crypto_blkcipher
*wep_rx_tfm
;
641 int bridge_packets
; /* bridge packets between associated stations and
642 * deliver multicast frames both back to wireless
643 * media and to the local net stack */
645 struct list_head interfaces
;
647 bool sta_sw_scanning
;
648 bool sta_hw_scanning
;
649 int scan_channel_idx
;
650 enum ieee80211_band scan_band
;
652 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
653 unsigned long last_scan_completed
;
654 struct delayed_work scan_work
;
655 struct net_device
*scan_dev
;
656 struct ieee80211_channel
*oper_channel
, *scan_channel
;
657 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
658 size_t scan_ssid_len
;
659 struct list_head sta_bss_list
;
660 struct ieee80211_sta_bss
*sta_bss_hash
[STA_HASH_SIZE
];
661 spinlock_t sta_bss_lock
;
664 /* dot11CountersTable */
665 u32 dot11TransmittedFragmentCount
;
666 u32 dot11MulticastTransmittedFrameCount
;
667 u32 dot11FailedCount
;
669 u32 dot11MultipleRetryCount
;
670 u32 dot11FrameDuplicateCount
;
671 u32 dot11ReceivedFragmentCount
;
672 u32 dot11MulticastReceivedFrameCount
;
673 u32 dot11TransmittedFrameCount
;
674 u32 dot11WEPUndecryptableCount
;
676 #ifdef CONFIG_MAC80211_LEDS
677 int tx_led_counter
, rx_led_counter
;
678 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
679 char tx_led_name
[32], rx_led_name
[32],
680 assoc_led_name
[32], radio_led_name
[32];
686 #ifdef CONFIG_MAC80211_DEBUGFS
687 struct work_struct sta_debugfs_add
;
690 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
691 /* TX/RX handler statistics */
692 unsigned int tx_handlers_drop
;
693 unsigned int tx_handlers_queued
;
694 unsigned int tx_handlers_drop_unencrypted
;
695 unsigned int tx_handlers_drop_fragment
;
696 unsigned int tx_handlers_drop_wep
;
697 unsigned int tx_handlers_drop_not_assoc
;
698 unsigned int tx_handlers_drop_unauth_port
;
699 unsigned int rx_handlers_drop
;
700 unsigned int rx_handlers_queued
;
701 unsigned int rx_handlers_drop_nullfunc
;
702 unsigned int rx_handlers_drop_defrag
;
703 unsigned int rx_handlers_drop_short
;
704 unsigned int rx_handlers_drop_passive_scan
;
705 unsigned int tx_expand_skb_head
;
706 unsigned int tx_expand_skb_head_cloned
;
707 unsigned int rx_expand_skb_head
;
708 unsigned int rx_expand_skb_head2
;
709 unsigned int rx_handlers_fragments
;
710 unsigned int tx_status_drop
;
711 unsigned int wme_rx_queue
[NUM_RX_DATA_QUEUES
];
712 unsigned int wme_tx_queue
[NUM_RX_DATA_QUEUES
];
713 #define I802_DEBUG_INC(c) (c)++
714 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
715 #define I802_DEBUG_INC(c) do { } while (0)
716 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
719 int total_ps_buffered
; /* total number of all buffered unicast and
720 * multicast packets for power saving stations
722 int wifi_wme_noack_test
;
723 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
725 #ifdef CONFIG_MAC80211_DEBUGFS
726 struct local_debugfsdentries
{
727 struct dentry
*frequency
;
728 struct dentry
*antenna_sel_tx
;
729 struct dentry
*antenna_sel_rx
;
730 struct dentry
*bridge_packets
;
731 struct dentry
*rts_threshold
;
732 struct dentry
*fragmentation_threshold
;
733 struct dentry
*short_retry_limit
;
734 struct dentry
*long_retry_limit
;
735 struct dentry
*total_ps_buffered
;
736 struct dentry
*wep_iv
;
737 struct dentry
*statistics
;
738 struct local_debugfsdentries_statsdentries
{
739 struct dentry
*transmitted_fragment_count
;
740 struct dentry
*multicast_transmitted_frame_count
;
741 struct dentry
*failed_count
;
742 struct dentry
*retry_count
;
743 struct dentry
*multiple_retry_count
;
744 struct dentry
*frame_duplicate_count
;
745 struct dentry
*received_fragment_count
;
746 struct dentry
*multicast_received_frame_count
;
747 struct dentry
*transmitted_frame_count
;
748 struct dentry
*wep_undecryptable_count
;
749 struct dentry
*num_scans
;
750 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
751 struct dentry
*tx_handlers_drop
;
752 struct dentry
*tx_handlers_queued
;
753 struct dentry
*tx_handlers_drop_unencrypted
;
754 struct dentry
*tx_handlers_drop_fragment
;
755 struct dentry
*tx_handlers_drop_wep
;
756 struct dentry
*tx_handlers_drop_not_assoc
;
757 struct dentry
*tx_handlers_drop_unauth_port
;
758 struct dentry
*rx_handlers_drop
;
759 struct dentry
*rx_handlers_queued
;
760 struct dentry
*rx_handlers_drop_nullfunc
;
761 struct dentry
*rx_handlers_drop_defrag
;
762 struct dentry
*rx_handlers_drop_short
;
763 struct dentry
*rx_handlers_drop_passive_scan
;
764 struct dentry
*tx_expand_skb_head
;
765 struct dentry
*tx_expand_skb_head_cloned
;
766 struct dentry
*rx_expand_skb_head
;
767 struct dentry
*rx_expand_skb_head2
;
768 struct dentry
*rx_handlers_fragments
;
769 struct dentry
*tx_status_drop
;
770 struct dentry
*wme_tx_queue
;
771 struct dentry
*wme_rx_queue
;
773 struct dentry
*dot11ACKFailureCount
;
774 struct dentry
*dot11RTSFailureCount
;
775 struct dentry
*dot11FCSErrorCount
;
776 struct dentry
*dot11RTSSuccessCount
;
778 struct dentry
*stations
;
784 /* this struct represents 802.11n's RA/TID combination */
785 struct ieee80211_ra_tid
{
790 /* Parsed Information Elements */
791 struct ieee802_11_elems
{
792 /* pointers to IEs */
816 /* length of them, respectively */
828 u8 ext_supp_rates_len
;
841 static inline struct ieee80211_local
*hw_to_local(
842 struct ieee80211_hw
*hw
)
844 return container_of(hw
, struct ieee80211_local
, hw
);
847 static inline struct ieee80211_hw
*local_to_hw(
848 struct ieee80211_local
*local
)
853 enum ieee80211_link_state_t
{
854 IEEE80211_LINK_STATE_XOFF
= 0,
855 IEEE80211_LINK_STATE_PENDING
,
858 struct sta_attribute
{
859 struct attribute attr
;
860 ssize_t (*show
)(const struct sta_info
*, char *buf
);
861 ssize_t (*store
)(struct sta_info
*, const char *buf
, size_t count
);
864 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
866 return compare_ether_addr(raddr
, addr
) == 0 ||
867 is_broadcast_ether_addr(raddr
);
872 int ieee80211_hw_config(struct ieee80211_local
*local
);
873 int ieee80211_if_config(struct net_device
*dev
);
874 int ieee80211_if_config_beacon(struct net_device
*dev
);
875 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
876 void ieee80211_if_setup(struct net_device
*dev
);
877 int ieee80211_hw_config_ht(struct ieee80211_local
*local
, int enable_ht
,
878 struct ieee80211_ht_info
*req_ht_cap
,
879 struct ieee80211_ht_bss_info
*req_bss_cap
);
881 /* ieee80211_ioctl.c */
882 extern const struct iw_handler_def ieee80211_iw_handler_def
;
885 /* Least common multiple of the used rates (in 100 kbps). This is used to
886 * calculate rate_inv values for each rate so that only integers are needed. */
887 #define CHAN_UTIL_RATE_LCM 95040
888 /* 1 usec is 1/8 * (95040/10) = 1188 */
889 #define CHAN_UTIL_PER_USEC 1188
890 /* Amount of bits to shift the result right to scale the total utilization
891 * to values that will not wrap around 32-bit integers. */
892 #define CHAN_UTIL_SHIFT 9
893 /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
894 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
895 * raw value with about 23 should give utilization in 10th of a percentage
896 * (1/1000). However, utilization is only estimated and not all intervals
897 * between frames etc. are calculated. 18 seems to give numbers that are closer
898 * to the real maximum. */
899 #define CHAN_UTIL_PER_10MS 18
900 #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
901 #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
904 /* ieee80211_ioctl.c */
905 int ieee80211_set_compression(struct ieee80211_local
*local
,
906 struct net_device
*dev
, struct sta_info
*sta
);
907 int ieee80211_set_freq(struct ieee80211_local
*local
, int freq
);
908 /* ieee80211_sta.c */
909 #define IEEE80211_FC(type, stype) cpu_to_le16(type | stype)
910 void ieee80211_sta_timer(unsigned long data
);
911 void ieee80211_sta_work(struct work_struct
*work
);
912 void ieee80211_sta_scan_work(struct work_struct
*work
);
913 void ieee80211_sta_rx_mgmt(struct net_device
*dev
, struct sk_buff
*skb
,
914 struct ieee80211_rx_status
*rx_status
);
915 int ieee80211_sta_set_ssid(struct net_device
*dev
, char *ssid
, size_t len
);
916 int ieee80211_sta_get_ssid(struct net_device
*dev
, char *ssid
, size_t *len
);
917 int ieee80211_sta_set_bssid(struct net_device
*dev
, u8
*bssid
);
918 int ieee80211_sta_req_scan(struct net_device
*dev
, u8
*ssid
, size_t ssid_len
);
919 void ieee80211_sta_req_auth(struct net_device
*dev
,
920 struct ieee80211_if_sta
*ifsta
);
921 int ieee80211_sta_scan_results(struct net_device
*dev
, char *buf
, size_t len
);
922 ieee80211_rx_result
ieee80211_sta_rx_scan(
923 struct net_device
*dev
, struct sk_buff
*skb
,
924 struct ieee80211_rx_status
*rx_status
);
925 void ieee80211_rx_bss_list_init(struct net_device
*dev
);
926 void ieee80211_rx_bss_list_deinit(struct net_device
*dev
);
927 int ieee80211_sta_set_extra_ie(struct net_device
*dev
, char *ie
, size_t len
);
928 struct sta_info
* ieee80211_ibss_add_sta(struct net_device
*dev
,
929 struct sk_buff
*skb
, u8
*bssid
,
931 int ieee80211_sta_deauthenticate(struct net_device
*dev
, u16 reason
);
932 int ieee80211_sta_disassociate(struct net_device
*dev
, u16 reason
);
933 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
935 void ieee80211_reset_erp_info(struct net_device
*dev
);
936 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap
*ht_cap_ie
,
937 struct ieee80211_ht_info
*ht_info
);
938 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
939 struct ieee80211_ht_addt_info
*ht_add_info_ie
,
940 struct ieee80211_ht_bss_info
*bss_info
);
941 void ieee80211_send_addba_request(struct net_device
*dev
, const u8
*da
,
942 u16 tid
, u8 dialog_token
, u16 start_seq_num
,
943 u16 agg_size
, u16 timeout
);
944 void ieee80211_send_delba(struct net_device
*dev
, const u8
*da
, u16 tid
,
945 u16 initiator
, u16 reason_code
);
947 void ieee80211_sta_stop_rx_ba_session(struct net_device
*dev
, u8
*da
,
948 u16 tid
, u16 initiator
, u16 reason
);
949 void sta_rx_agg_session_timer_expired(unsigned long data
);
950 void sta_addba_resp_timer_expired(unsigned long data
);
951 void ieee80211_sta_tear_down_BA_sessions(struct net_device
*dev
, u8
*addr
);
952 u64
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
953 struct ieee802_11_elems
*elems
,
954 enum ieee80211_band band
);
955 void ieee80211_sta_tx(struct net_device
*dev
, struct sk_buff
*skb
,
957 void ieee802_11_parse_elems(u8
*start
, size_t len
,
958 struct ieee802_11_elems
*elems
);
960 #ifdef CONFIG_MAC80211_MESH
961 void ieee80211_start_mesh(struct net_device
*dev
);
963 static inline void ieee80211_start_mesh(struct net_device
*dev
)
967 /* ieee80211_iface.c */
968 int ieee80211_if_add(struct net_device
*dev
, const char *name
,
969 struct net_device
**new_dev
, int type
,
970 struct vif_params
*params
);
971 void ieee80211_if_set_type(struct net_device
*dev
, int type
);
972 void ieee80211_if_reinit(struct net_device
*dev
);
973 void __ieee80211_if_del(struct ieee80211_local
*local
,
974 struct ieee80211_sub_if_data
*sdata
);
975 int ieee80211_if_remove(struct net_device
*dev
, const char *name
, int id
);
976 void ieee80211_if_free(struct net_device
*dev
);
977 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data
*sdata
);
980 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
981 void ieee80211_tx_pending(unsigned long data
);
982 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
983 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
984 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
986 /* utility functions/constants */
987 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
988 extern const unsigned char rfc1042_header
[6];
989 extern const unsigned char bridge_tunnel_header
[6];
990 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
991 enum ieee80211_if_types type
);
992 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
993 int rate
, int erp
, int short_preamble
);
994 void mac80211_ev_michael_mic_failure(struct net_device
*dev
, int keyidx
,
995 struct ieee80211_hdr
*hdr
);
997 #endif /* IEEE80211_I_H */