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 */
73 struct ieee80211_sta_bss
{
74 struct list_head list
;
75 struct ieee80211_sta_bss
*hnext
;
79 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
81 u16 capability
; /* host byte order */
82 enum ieee80211_band band
;
84 int rssi
, signal
, noise
;
93 #ifdef CONFIG_MAC80211_MESH
98 #define IEEE80211_MAX_SUPP_RATES 32
99 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
100 size_t supp_rates_len
;
105 unsigned long last_update
;
107 /* during assocation, we save an ERP value from a probe response so
108 * that we can feed ERP info to the driver when handling the
109 * association completes. these fields probably won't be up-to-date
110 * otherwise, you probably don't want to use them. */
115 static inline u8
*bss_mesh_cfg(struct ieee80211_sta_bss
*bss
)
117 #ifdef CONFIG_MAC80211_MESH
118 return bss
->mesh_cfg
;
123 static inline u8
*bss_mesh_id(struct ieee80211_sta_bss
*bss
)
125 #ifdef CONFIG_MAC80211_MESH
131 static inline u8
bss_mesh_id_len(struct ieee80211_sta_bss
*bss
)
133 #ifdef CONFIG_MAC80211_MESH
134 return bss
->mesh_id_len
;
140 typedef unsigned __bitwise__ ieee80211_tx_result
;
141 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
142 #define TX_DROP ((__force ieee80211_tx_result) 1u)
143 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
145 #define IEEE80211_TX_FRAGMENTED BIT(0)
146 #define IEEE80211_TX_UNICAST BIT(1)
147 #define IEEE80211_TX_PS_BUFFERED BIT(2)
148 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
149 #define IEEE80211_TX_INJECTED BIT(4)
151 struct ieee80211_tx_data
{
153 struct net_device
*dev
;
154 struct ieee80211_local
*local
;
155 struct ieee80211_sub_if_data
*sdata
;
156 struct sta_info
*sta
;
158 struct ieee80211_key
*key
;
161 struct ieee80211_tx_control
*control
;
162 struct ieee80211_channel
*channel
;
163 struct ieee80211_rate
*rate
;
164 /* use this rate (if set) for last fragment; rate can
165 * be set to lower rate for the first fragments, e.g.,
166 * when using CTS protection with IEEE 802.11g. */
167 struct ieee80211_rate
*last_frag_rate
;
169 /* Extra fragments (in addition to the first fragment
172 struct sk_buff
**extra_frag
;
176 typedef unsigned __bitwise__ ieee80211_rx_result
;
177 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
178 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
179 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
180 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
182 #define IEEE80211_RX_IN_SCAN BIT(0)
183 /* frame is destined to interface currently processed (incl. multicast frames) */
184 #define IEEE80211_RX_RA_MATCH BIT(1)
185 #define IEEE80211_RX_AMSDU BIT(2)
186 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
187 #define IEEE80211_RX_FRAGMENTED BIT(4)
189 struct ieee80211_rx_data
{
191 struct net_device
*dev
;
192 struct ieee80211_local
*local
;
193 struct ieee80211_sub_if_data
*sdata
;
194 struct sta_info
*sta
;
196 struct ieee80211_key
*key
;
199 struct ieee80211_rx_status
*status
;
200 struct ieee80211_rate
*rate
;
201 int sent_ps_buffered
;
208 /* flags used in struct ieee80211_tx_packet_data.flags */
209 #define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
210 #define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
211 #define IEEE80211_TXPD_REQUEUE BIT(2)
212 #define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
213 #define IEEE80211_TXPD_AMPDU BIT(4)
214 /* Stored in sk_buff->cb */
215 struct ieee80211_tx_packet_data
{
217 unsigned long jiffies
;
222 struct ieee80211_tx_stored_packet
{
223 struct ieee80211_tx_control control
;
226 struct sk_buff
**extra_frag
;
227 struct ieee80211_rate
*last_frag_rate
;
228 unsigned int last_frag_rate_ctrl_probe
;
233 int head_len
, tail_len
;
237 struct ieee80211_if_ap
{
238 struct beacon_data
*beacon
;
240 struct list_head vlans
;
242 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
245 /* yes, this looks ugly, but guarantees that we can later use
247 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
248 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
249 atomic_t num_sta_ps
; /* number of stations in PS mode */
250 struct sk_buff_head ps_bc_buf
;
252 int force_unicast_rateidx
; /* forced TX rateidx for unicast frames */
253 int max_ratectrl_rateidx
; /* max TX rateidx for rate control */
254 int num_beacons
; /* number of TXed beacon frames for this BSS */
257 struct ieee80211_if_wds
{
258 u8 remote_addr
[ETH_ALEN
];
259 struct sta_info
*sta
;
262 struct ieee80211_if_vlan
{
263 struct ieee80211_sub_if_data
*ap
;
264 struct list_head list
;
268 __u32 fwded_frames
; /* Mesh forwarded frames */
269 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
270 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
271 atomic_t estab_plinks
;
274 #define PREQ_Q_F_START 0x1
275 #define PREQ_Q_F_REFRESH 0x2
276 struct mesh_preq_queue
{
277 struct list_head list
;
284 /* Mesh plink management parameters */
285 u16 dot11MeshRetryTimeout
;
286 u16 dot11MeshConfirmTimeout
;
287 u16 dot11MeshHoldingTimeout
;
288 u16 dot11MeshMaxPeerLinks
;
289 u8 dot11MeshMaxRetries
;
291 bool auto_open_plinks
;
292 /* HWMP parameters */
293 u32 dot11MeshHWMPactivePathTimeout
;
294 u16 dot11MeshHWMPpreqMinInterval
;
295 u16 dot11MeshHWMPnetDiameterTraversalTime
;
296 u8 dot11MeshHWMPmaxPREQretries
;
297 u32 path_refresh_time
;
298 u16 min_discovery_timeout
;
302 /* flags used in struct ieee80211_if_sta.flags */
303 #define IEEE80211_STA_SSID_SET BIT(0)
304 #define IEEE80211_STA_BSSID_SET BIT(1)
305 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
306 #define IEEE80211_STA_AUTHENTICATED BIT(3)
307 #define IEEE80211_STA_ASSOCIATED BIT(4)
308 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
309 #define IEEE80211_STA_CREATE_IBSS BIT(6)
310 #define IEEE80211_STA_MIXED_CELL BIT(7)
311 #define IEEE80211_STA_WMM_ENABLED BIT(8)
312 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
313 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
314 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
315 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
316 struct ieee80211_if_sta
{
318 IEEE80211_DISABLED
, IEEE80211_AUTHENTICATE
,
319 IEEE80211_ASSOCIATE
, IEEE80211_ASSOCIATED
,
320 IEEE80211_IBSS_SEARCH
, IEEE80211_IBSS_JOINED
,
323 struct timer_list timer
;
324 struct work_struct work
;
325 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
326 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
328 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
329 size_t scan_ssid_len
;
330 #ifdef CONFIG_MAC80211_MESH
331 struct timer_list mesh_path_timer
;
332 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
333 bool accepting_plinks
;
335 /* Active Path Selection Protocol Identifier */
337 /* Active Path Selection Metric Identifier */
339 /* Congestion Control Mode Identifier */
341 /* Local mesh Destination Sequence Number */
343 /* Last used PREQ ID */
346 /* Timestamp of last DSN update */
347 unsigned long last_dsn_update
;
348 /* Timestamp of last DSN sent */
349 unsigned long last_preq
;
350 struct mesh_rmc
*rmc
;
351 spinlock_t mesh_preq_queue_lock
;
352 struct mesh_preq_queue preq_queue
;
354 struct mesh_stats mshstats
;
355 struct mesh_config mshcfg
;
360 u8
*extra_ie
; /* to be added to the end of AssocReq */
363 /* The last AssocReq/Resp IEs */
364 u8
*assocreq_ies
, *assocresp_ies
;
365 size_t assocreq_ies_len
, assocresp_ies_len
;
367 int auth_tries
, assoc_tries
;
370 #define IEEE80211_STA_REQ_SCAN 0
371 #define IEEE80211_STA_REQ_AUTH 1
372 #define IEEE80211_STA_REQ_RUN 2
373 unsigned long request
;
374 struct sk_buff_head skb_queue
;
376 unsigned long last_probe
;
378 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
379 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
380 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
381 unsigned int auth_algs
; /* bitfield of allowed auth algs */
382 int auth_alg
; /* currently used IEEE 802.11 authentication algorithm */
383 int auth_transaction
;
385 unsigned long ibss_join_req
;
386 struct sk_buff
*probe_resp
; /* ProbeResp template for IBSS */
387 u32 supp_rates_bits
[IEEE80211_NUM_BANDS
];
389 int wmm_last_param_set
;
390 int num_beacons
; /* number of TXed beacon frames by this STA */
393 static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta
*ifsta
,
394 u8 mesh_id_len
, u8
*mesh_id
)
396 #ifdef CONFIG_MAC80211_MESH
397 ifsta
->mesh_id_len
= mesh_id_len
;
398 memcpy(ifsta
->mesh_id
, mesh_id
, mesh_id_len
);
402 #ifdef CONFIG_MAC80211_MESH
403 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
404 do { (sta)->mshstats.name++; } while (0)
406 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
410 /* flags used in struct ieee80211_sub_if_data.flags */
411 #define IEEE80211_SDATA_ALLMULTI BIT(0)
412 #define IEEE80211_SDATA_PROMISC BIT(1)
413 #define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
414 #define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
415 struct ieee80211_sub_if_data
{
416 struct list_head list
;
418 struct wireless_dev wdev
;
421 struct list_head key_list
;
423 struct net_device
*dev
;
424 struct ieee80211_local
*local
;
428 int drop_unencrypted
;
431 * basic rates of this AP or the AP we're associated to
437 /* Fragment table for host-based reassembly */
438 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
439 unsigned int fragment_next
;
441 #define NUM_DEFAULT_KEYS 4
442 struct ieee80211_key
*keys
[NUM_DEFAULT_KEYS
];
443 struct ieee80211_key
*default_key
;
446 * BSS configuration for this interface.
448 * FIXME: I feel bad putting this here when we already have a
449 * bss pointer, but the bss pointer is just wrong when
450 * you have multiple virtual STA mode interfaces...
451 * This needs to be fixed.
453 struct ieee80211_bss_conf bss_conf
;
454 struct ieee80211_if_ap
*bss
; /* BSS that this device belongs to */
457 struct ieee80211_if_ap ap
;
458 struct ieee80211_if_wds wds
;
459 struct ieee80211_if_vlan vlan
;
460 struct ieee80211_if_sta sta
;
466 #ifdef CONFIG_MAC80211_DEBUGFS
467 struct dentry
*debugfsdir
;
470 struct dentry
*channel_use
;
471 struct dentry
*drop_unencrypted
;
472 struct dentry
*state
;
473 struct dentry
*bssid
;
474 struct dentry
*prev_bssid
;
475 struct dentry
*ssid_len
;
477 struct dentry
*ap_capab
;
478 struct dentry
*capab
;
479 struct dentry
*extra_ie_len
;
480 struct dentry
*auth_tries
;
481 struct dentry
*assoc_tries
;
482 struct dentry
*auth_algs
;
483 struct dentry
*auth_alg
;
484 struct dentry
*auth_transaction
;
485 struct dentry
*flags
;
486 struct dentry
*num_beacons_sta
;
489 struct dentry
*channel_use
;
490 struct dentry
*drop_unencrypted
;
491 struct dentry
*num_sta_ps
;
492 struct dentry
*dtim_count
;
493 struct dentry
*num_beacons
;
494 struct dentry
*force_unicast_rateidx
;
495 struct dentry
*max_ratectrl_rateidx
;
496 struct dentry
*num_buffered_multicast
;
499 struct dentry
*channel_use
;
500 struct dentry
*drop_unencrypted
;
504 struct dentry
*channel_use
;
505 struct dentry
*drop_unencrypted
;
510 struct dentry
*default_key
;
513 #ifdef CONFIG_MAC80211_MESH
514 struct dentry
*mesh_stats_dir
;
516 struct dentry
*fwded_frames
;
517 struct dentry
*dropped_frames_ttl
;
518 struct dentry
*dropped_frames_no_route
;
519 struct dentry
*estab_plinks
;
520 struct timer_list mesh_path_timer
;
523 struct dentry
*mesh_config_dir
;
525 struct dentry
*dot11MeshRetryTimeout
;
526 struct dentry
*dot11MeshConfirmTimeout
;
527 struct dentry
*dot11MeshHoldingTimeout
;
528 struct dentry
*dot11MeshMaxRetries
;
529 struct dentry
*dot11MeshTTL
;
530 struct dentry
*auto_open_plinks
;
531 struct dentry
*dot11MeshMaxPeerLinks
;
532 struct dentry
*dot11MeshHWMPactivePathTimeout
;
533 struct dentry
*dot11MeshHWMPpreqMinInterval
;
534 struct dentry
*dot11MeshHWMPnetDiameterTraversalTime
;
535 struct dentry
*dot11MeshHWMPmaxPREQretries
;
536 struct dentry
*path_refresh_time
;
537 struct dentry
*min_discovery_timeout
;
542 /* must be last, dynamically sized area in this! */
543 struct ieee80211_vif vif
;
547 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
549 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
552 #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
555 IEEE80211_RX_MSG
= 1,
556 IEEE80211_TX_STATUS_MSG
= 2,
557 IEEE80211_DELBA_MSG
= 3,
558 IEEE80211_ADDBA_MSG
= 4,
561 struct ieee80211_local
{
562 /* embed the driver visible part.
563 * don't cast (use the static inlines below), but we keep
564 * it first anyway so they become a no-op */
565 struct ieee80211_hw hw
;
567 const struct ieee80211_ops
*ops
;
569 struct net_device
*mdev
; /* wmaster# - "master" 802.11 device */
571 int monitors
, cooked_mntrs
;
572 /* number of interfaces with corresponding FIF_ flags */
573 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
;
574 unsigned int filter_flags
; /* FIF_* */
575 struct iw_statistics wstats
;
577 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
578 int tx_headroom
; /* required headroom for hardware/radiotap */
581 IEEE80211_DEV_UNINITIALIZED
= 0,
582 IEEE80211_DEV_REGISTERED
,
583 IEEE80211_DEV_UNREGISTERED
,
586 /* Tasklet and skb queue to process calls from IRQ mode. All frames
587 * added to skb_queue will be processed, but frames in
588 * skb_queue_unreliable may be dropped if the total length of these
589 * queues increases over the limit. */
590 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
591 struct tasklet_struct tasklet
;
592 struct sk_buff_head skb_queue
;
593 struct sk_buff_head skb_queue_unreliable
;
597 * The lock only protects the list, hash, timer and counter
598 * against manipulation, reads are done in RCU. Additionally,
599 * the lock protects each BSS's TIM bitmap and a few items
600 * in a STA info structure.
603 unsigned long num_sta
;
604 struct list_head sta_list
;
605 struct sta_info
*sta_hash
[STA_HASH_SIZE
];
606 struct timer_list sta_cleanup
;
608 unsigned long state
[NUM_TX_DATA_QUEUES_AMPDU
];
609 struct ieee80211_tx_stored_packet pending_packet
[NUM_TX_DATA_QUEUES_AMPDU
];
610 struct tasklet_struct tx_pending_tasklet
;
612 /* number of interfaces with corresponding IFF_ flags */
613 atomic_t iff_allmultis
, iff_promiscs
;
615 struct rate_control_ref
*rate_ctrl
;
618 int fragmentation_threshold
;
619 int short_retry_limit
; /* dot11ShortRetryLimit */
620 int long_retry_limit
; /* dot11LongRetryLimit */
622 struct crypto_blkcipher
*wep_tx_tfm
;
623 struct crypto_blkcipher
*wep_rx_tfm
;
626 int bridge_packets
; /* bridge packets between associated stations and
627 * deliver multicast frames both back to wireless
628 * media and to the local net stack */
630 struct list_head interfaces
;
632 bool sta_sw_scanning
;
633 bool sta_hw_scanning
;
634 int scan_channel_idx
;
635 enum ieee80211_band scan_band
;
637 enum { SCAN_SET_CHANNEL
, SCAN_SEND_PROBE
} scan_state
;
638 unsigned long last_scan_completed
;
639 struct delayed_work scan_work
;
640 struct net_device
*scan_dev
;
641 struct ieee80211_channel
*oper_channel
, *scan_channel
;
642 u8 scan_ssid
[IEEE80211_MAX_SSID_LEN
];
643 size_t scan_ssid_len
;
644 struct list_head sta_bss_list
;
645 struct ieee80211_sta_bss
*sta_bss_hash
[STA_HASH_SIZE
];
646 spinlock_t sta_bss_lock
;
649 /* dot11CountersTable */
650 u32 dot11TransmittedFragmentCount
;
651 u32 dot11MulticastTransmittedFrameCount
;
652 u32 dot11FailedCount
;
654 u32 dot11MultipleRetryCount
;
655 u32 dot11FrameDuplicateCount
;
656 u32 dot11ReceivedFragmentCount
;
657 u32 dot11MulticastReceivedFrameCount
;
658 u32 dot11TransmittedFrameCount
;
659 u32 dot11WEPUndecryptableCount
;
661 #ifdef CONFIG_MAC80211_LEDS
662 int tx_led_counter
, rx_led_counter
;
663 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
664 char tx_led_name
[32], rx_led_name
[32],
665 assoc_led_name
[32], radio_led_name
[32];
671 #ifdef CONFIG_MAC80211_DEBUGFS
672 struct work_struct sta_debugfs_add
;
675 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
676 /* TX/RX handler statistics */
677 unsigned int tx_handlers_drop
;
678 unsigned int tx_handlers_queued
;
679 unsigned int tx_handlers_drop_unencrypted
;
680 unsigned int tx_handlers_drop_fragment
;
681 unsigned int tx_handlers_drop_wep
;
682 unsigned int tx_handlers_drop_not_assoc
;
683 unsigned int tx_handlers_drop_unauth_port
;
684 unsigned int rx_handlers_drop
;
685 unsigned int rx_handlers_queued
;
686 unsigned int rx_handlers_drop_nullfunc
;
687 unsigned int rx_handlers_drop_defrag
;
688 unsigned int rx_handlers_drop_short
;
689 unsigned int rx_handlers_drop_passive_scan
;
690 unsigned int tx_expand_skb_head
;
691 unsigned int tx_expand_skb_head_cloned
;
692 unsigned int rx_expand_skb_head
;
693 unsigned int rx_expand_skb_head2
;
694 unsigned int rx_handlers_fragments
;
695 unsigned int tx_status_drop
;
696 unsigned int wme_rx_queue
[NUM_RX_DATA_QUEUES
];
697 unsigned int wme_tx_queue
[NUM_RX_DATA_QUEUES
];
698 #define I802_DEBUG_INC(c) (c)++
699 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
700 #define I802_DEBUG_INC(c) do { } while (0)
701 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
704 int total_ps_buffered
; /* total number of all buffered unicast and
705 * multicast packets for power saving stations
707 int wifi_wme_noack_test
;
708 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
710 #ifdef CONFIG_MAC80211_DEBUGFS
711 struct local_debugfsdentries
{
712 struct dentry
*frequency
;
713 struct dentry
*antenna_sel_tx
;
714 struct dentry
*antenna_sel_rx
;
715 struct dentry
*bridge_packets
;
716 struct dentry
*rts_threshold
;
717 struct dentry
*fragmentation_threshold
;
718 struct dentry
*short_retry_limit
;
719 struct dentry
*long_retry_limit
;
720 struct dentry
*total_ps_buffered
;
721 struct dentry
*wep_iv
;
722 struct dentry
*statistics
;
723 struct local_debugfsdentries_statsdentries
{
724 struct dentry
*transmitted_fragment_count
;
725 struct dentry
*multicast_transmitted_frame_count
;
726 struct dentry
*failed_count
;
727 struct dentry
*retry_count
;
728 struct dentry
*multiple_retry_count
;
729 struct dentry
*frame_duplicate_count
;
730 struct dentry
*received_fragment_count
;
731 struct dentry
*multicast_received_frame_count
;
732 struct dentry
*transmitted_frame_count
;
733 struct dentry
*wep_undecryptable_count
;
734 struct dentry
*num_scans
;
735 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
736 struct dentry
*tx_handlers_drop
;
737 struct dentry
*tx_handlers_queued
;
738 struct dentry
*tx_handlers_drop_unencrypted
;
739 struct dentry
*tx_handlers_drop_fragment
;
740 struct dentry
*tx_handlers_drop_wep
;
741 struct dentry
*tx_handlers_drop_not_assoc
;
742 struct dentry
*tx_handlers_drop_unauth_port
;
743 struct dentry
*rx_handlers_drop
;
744 struct dentry
*rx_handlers_queued
;
745 struct dentry
*rx_handlers_drop_nullfunc
;
746 struct dentry
*rx_handlers_drop_defrag
;
747 struct dentry
*rx_handlers_drop_short
;
748 struct dentry
*rx_handlers_drop_passive_scan
;
749 struct dentry
*tx_expand_skb_head
;
750 struct dentry
*tx_expand_skb_head_cloned
;
751 struct dentry
*rx_expand_skb_head
;
752 struct dentry
*rx_expand_skb_head2
;
753 struct dentry
*rx_handlers_fragments
;
754 struct dentry
*tx_status_drop
;
755 struct dentry
*wme_tx_queue
;
756 struct dentry
*wme_rx_queue
;
758 struct dentry
*dot11ACKFailureCount
;
759 struct dentry
*dot11RTSFailureCount
;
760 struct dentry
*dot11FCSErrorCount
;
761 struct dentry
*dot11RTSSuccessCount
;
763 struct dentry
*stations
;
769 /* this struct represents 802.11n's RA/TID combination */
770 struct ieee80211_ra_tid
{
775 /* Parsed Information Elements */
776 struct ieee802_11_elems
{
777 /* pointers to IEs */
801 /* length of them, respectively */
813 u8 ext_supp_rates_len
;
826 static inline struct ieee80211_local
*hw_to_local(
827 struct ieee80211_hw
*hw
)
829 return container_of(hw
, struct ieee80211_local
, hw
);
832 static inline struct ieee80211_hw
*local_to_hw(
833 struct ieee80211_local
*local
)
838 enum ieee80211_link_state_t
{
839 IEEE80211_LINK_STATE_XOFF
= 0,
840 IEEE80211_LINK_STATE_PENDING
,
843 struct sta_attribute
{
844 struct attribute attr
;
845 ssize_t (*show
)(const struct sta_info
*, char *buf
);
846 ssize_t (*store
)(struct sta_info
*, const char *buf
, size_t count
);
849 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
851 return compare_ether_addr(raddr
, addr
) == 0 ||
852 is_broadcast_ether_addr(raddr
);
857 int ieee80211_hw_config(struct ieee80211_local
*local
);
858 int ieee80211_if_config(struct net_device
*dev
);
859 int ieee80211_if_config_beacon(struct net_device
*dev
);
860 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
861 void ieee80211_if_setup(struct net_device
*dev
);
862 int ieee80211_hw_config_ht(struct ieee80211_local
*local
, int enable_ht
,
863 struct ieee80211_ht_info
*req_ht_cap
,
864 struct ieee80211_ht_bss_info
*req_bss_cap
);
866 /* ieee80211_ioctl.c */
867 extern const struct iw_handler_def ieee80211_iw_handler_def
;
870 /* Least common multiple of the used rates (in 100 kbps). This is used to
871 * calculate rate_inv values for each rate so that only integers are needed. */
872 #define CHAN_UTIL_RATE_LCM 95040
873 /* 1 usec is 1/8 * (95040/10) = 1188 */
874 #define CHAN_UTIL_PER_USEC 1188
875 /* Amount of bits to shift the result right to scale the total utilization
876 * to values that will not wrap around 32-bit integers. */
877 #define CHAN_UTIL_SHIFT 9
878 /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
879 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
880 * raw value with about 23 should give utilization in 10th of a percentage
881 * (1/1000). However, utilization is only estimated and not all intervals
882 * between frames etc. are calculated. 18 seems to give numbers that are closer
883 * to the real maximum. */
884 #define CHAN_UTIL_PER_10MS 18
885 #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
886 #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
889 /* ieee80211_ioctl.c */
890 int ieee80211_set_compression(struct ieee80211_local
*local
,
891 struct net_device
*dev
, struct sta_info
*sta
);
892 int ieee80211_set_freq(struct ieee80211_local
*local
, int freq
);
893 /* ieee80211_sta.c */
894 #define IEEE80211_FC(type, stype) cpu_to_le16(type | stype)
895 void ieee80211_sta_timer(unsigned long data
);
896 void ieee80211_sta_work(struct work_struct
*work
);
897 void ieee80211_sta_scan_work(struct work_struct
*work
);
898 void ieee80211_sta_rx_mgmt(struct net_device
*dev
, struct sk_buff
*skb
,
899 struct ieee80211_rx_status
*rx_status
);
900 int ieee80211_sta_set_ssid(struct net_device
*dev
, char *ssid
, size_t len
);
901 int ieee80211_sta_get_ssid(struct net_device
*dev
, char *ssid
, size_t *len
);
902 int ieee80211_sta_set_bssid(struct net_device
*dev
, u8
*bssid
);
903 int ieee80211_sta_req_scan(struct net_device
*dev
, u8
*ssid
, size_t ssid_len
);
904 void ieee80211_sta_req_auth(struct net_device
*dev
,
905 struct ieee80211_if_sta
*ifsta
);
906 int ieee80211_sta_scan_results(struct net_device
*dev
, char *buf
, size_t len
);
907 ieee80211_rx_result
ieee80211_sta_rx_scan(
908 struct net_device
*dev
, struct sk_buff
*skb
,
909 struct ieee80211_rx_status
*rx_status
);
910 void ieee80211_rx_bss_list_init(struct net_device
*dev
);
911 void ieee80211_rx_bss_list_deinit(struct net_device
*dev
);
912 int ieee80211_sta_set_extra_ie(struct net_device
*dev
, char *ie
, size_t len
);
913 struct sta_info
* ieee80211_ibss_add_sta(struct net_device
*dev
,
914 struct sk_buff
*skb
, u8
*bssid
,
916 int ieee80211_sta_deauthenticate(struct net_device
*dev
, u16 reason
);
917 int ieee80211_sta_disassociate(struct net_device
*dev
, u16 reason
);
918 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
920 void ieee80211_reset_erp_info(struct net_device
*dev
);
921 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap
*ht_cap_ie
,
922 struct ieee80211_ht_info
*ht_info
);
923 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
924 struct ieee80211_ht_addt_info
*ht_add_info_ie
,
925 struct ieee80211_ht_bss_info
*bss_info
);
926 void ieee80211_send_addba_request(struct net_device
*dev
, const u8
*da
,
927 u16 tid
, u8 dialog_token
, u16 start_seq_num
,
928 u16 agg_size
, u16 timeout
);
929 void ieee80211_send_delba(struct net_device
*dev
, const u8
*da
, u16 tid
,
930 u16 initiator
, u16 reason_code
);
931 void ieee80211_sta_stop_rx_ba_session(struct net_device
*dev
, u8
*da
,
932 u16 tid
, u16 initiator
, u16 reason
);
933 void sta_rx_agg_session_timer_expired(unsigned long data
);
934 void sta_addba_resp_timer_expired(unsigned long data
);
935 u64
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
936 struct ieee802_11_elems
*elems
,
937 enum ieee80211_band band
);
938 void ieee80211_sta_tx(struct net_device
*dev
, struct sk_buff
*skb
,
940 void ieee802_11_parse_elems(u8
*start
, size_t len
,
941 struct ieee802_11_elems
*elems
);
943 #ifdef CONFIG_MAC80211_MESH
944 void ieee80211_start_mesh(struct net_device
*dev
);
946 static inline void ieee80211_start_mesh(struct net_device
*dev
)
950 /* ieee80211_iface.c */
951 int ieee80211_if_add(struct net_device
*dev
, const char *name
,
952 struct net_device
**new_dev
, int type
,
953 struct vif_params
*params
);
954 void ieee80211_if_set_type(struct net_device
*dev
, int type
);
955 void ieee80211_if_reinit(struct net_device
*dev
);
956 void __ieee80211_if_del(struct ieee80211_local
*local
,
957 struct ieee80211_sub_if_data
*sdata
);
958 int ieee80211_if_remove(struct net_device
*dev
, const char *name
, int id
);
959 void ieee80211_if_free(struct net_device
*dev
);
960 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data
*sdata
);
963 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
964 void ieee80211_tx_pending(unsigned long data
);
965 int ieee80211_master_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
966 int ieee80211_monitor_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
967 int ieee80211_subif_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
969 /* utility functions/constants */
970 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
971 extern const unsigned char rfc1042_header
[6];
972 extern const unsigned char bridge_tunnel_header
[6];
973 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
974 enum ieee80211_if_types type
);
975 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
976 int rate
, int erp
, int short_preamble
);
977 void mac80211_ev_michael_mic_failure(struct net_device
*dev
, int keyidx
,
978 struct ieee80211_hdr
*hdr
);
980 #endif /* IEEE80211_I_H */