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>
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 #define IEEE80211_FC(type, subtype) cpu_to_le16(type | subtype)
40 struct ieee80211_local;
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;
81 u8 ssid[IEEE80211_MAX_SSID_LEN];
82 u16 capability; /* host byte order */
83 enum ieee80211_band band;
85 int rssi, signal, noise;
94 #ifdef CONFIG_MAC80211_MESH
99 #define IEEE80211_MAX_SUPP_RATES 32
100 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
101 size_t supp_rates_len;
106 unsigned long last_update;
108 /* during assocation, we save an ERP value from a probe response so
109 * that we can feed ERP info to the driver when handling the
110 * association completes. these fields probably won't be up-to-date
111 * otherwise, you probably don't want to use them. */
116 static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
118 #ifdef CONFIG_MAC80211_MESH
119 return bss->mesh_cfg;
124 static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
126 #ifdef CONFIG_MAC80211_MESH
132 static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
134 #ifdef CONFIG_MAC80211_MESH
135 return bss->mesh_id_len;
141 typedef unsigned __bitwise__ ieee80211_tx_result;
142 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
143 #define TX_DROP ((__force ieee80211_tx_result) 1u)
144 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
146 #define IEEE80211_TX_FRAGMENTED BIT(0)
147 #define IEEE80211_TX_UNICAST BIT(1)
148 #define IEEE80211_TX_PS_BUFFERED BIT(2)
149 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
150 #define IEEE80211_TX_INJECTED BIT(4)
152 struct ieee80211_tx_data {
154 struct net_device *dev;
155 struct ieee80211_local *local;
156 struct ieee80211_sub_if_data *sdata;
157 struct sta_info *sta;
158 struct ieee80211_key *key;
160 struct ieee80211_tx_control *control;
161 struct ieee80211_channel *channel;
162 struct ieee80211_rate *rate;
163 /* use this rate (if set) for last fragment; rate can
164 * be set to lower rate for the first fragments, e.g.,
165 * when using CTS protection with IEEE 802.11g. */
166 struct ieee80211_rate *last_frag_rate;
168 /* Extra fragments (in addition to the first fragment
170 struct sk_buff **extra_frag;
178 typedef unsigned __bitwise__ ieee80211_rx_result;
179 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
180 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
181 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
182 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
184 #define IEEE80211_RX_IN_SCAN BIT(0)
185 /* frame is destined to interface currently processed (incl. multicast frames) */
186 #define IEEE80211_RX_RA_MATCH BIT(1)
187 #define IEEE80211_RX_AMSDU BIT(2)
188 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
189 #define IEEE80211_RX_FRAGMENTED BIT(4)
191 struct ieee80211_rx_data {
193 struct net_device *dev;
194 struct ieee80211_local *local;
195 struct ieee80211_sub_if_data *sdata;
196 struct sta_info *sta;
197 struct ieee80211_key *key;
198 struct ieee80211_rx_status *status;
199 struct ieee80211_rate *rate;
203 int sent_ps_buffered;
210 /* flags used in struct ieee80211_tx_packet_data.flags */
211 #define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
212 #define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
213 #define IEEE80211_TXPD_REQUEUE BIT(2)
214 #define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
215 #define IEEE80211_TXPD_AMPDU BIT(4)
216 /* Stored in sk_buff->cb */
217 struct ieee80211_tx_packet_data {
219 unsigned long jiffies;
224 struct ieee80211_tx_stored_packet {
225 struct ieee80211_tx_control control;
227 struct sk_buff **extra_frag;
228 struct ieee80211_rate *last_frag_rate;
230 unsigned int last_frag_rate_ctrl_probe;
235 int head_len, tail_len;
239 struct ieee80211_if_ap {
240 struct beacon_data *beacon;
242 struct list_head vlans;
244 u8 ssid[IEEE80211_MAX_SSID_LEN];
247 /* yes, this looks ugly, but guarantees that we can later use
249 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
250 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
251 struct sk_buff_head ps_bc_buf;
252 atomic_t num_sta_ps; /* number of stations in PS mode */
254 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
255 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
256 int num_beacons; /* number of TXed beacon frames for this BSS */
259 struct ieee80211_if_wds {
260 struct sta_info *sta;
261 u8 remote_addr[ETH_ALEN];
264 struct ieee80211_if_vlan {
265 struct ieee80211_sub_if_data *ap;
266 struct list_head list;
270 __u32 fwded_frames; /* Mesh forwarded frames */
271 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
272 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
273 atomic_t estab_plinks;
276 #define PREQ_Q_F_START 0x1
277 #define PREQ_Q_F_REFRESH 0x2
278 struct mesh_preq_queue {
279 struct list_head list;
286 /* Mesh plink management parameters */
287 u16 dot11MeshRetryTimeout;
288 u16 dot11MeshConfirmTimeout;
289 u16 dot11MeshHoldingTimeout;
290 u16 dot11MeshMaxPeerLinks;
291 u8 dot11MeshMaxRetries;
293 bool auto_open_plinks;
294 /* HWMP parameters */
295 u8 dot11MeshHWMPmaxPREQretries;
296 u32 path_refresh_time;
297 u16 min_discovery_timeout;
298 u32 dot11MeshHWMPactivePathTimeout;
299 u16 dot11MeshHWMPpreqMinInterval;
300 u16 dot11MeshHWMPnetDiameterTraversalTime;
304 /* flags used in struct ieee80211_if_sta.flags */
305 #define IEEE80211_STA_SSID_SET BIT(0)
306 #define IEEE80211_STA_BSSID_SET BIT(1)
307 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
308 #define IEEE80211_STA_AUTHENTICATED BIT(3)
309 #define IEEE80211_STA_ASSOCIATED BIT(4)
310 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
311 #define IEEE80211_STA_CREATE_IBSS BIT(6)
312 #define IEEE80211_STA_MIXED_CELL BIT(7)
313 #define IEEE80211_STA_WMM_ENABLED BIT(8)
314 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
315 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
316 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
317 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
318 struct ieee80211_if_sta {
319 struct timer_list timer;
320 struct work_struct work;
321 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
322 u8 ssid[IEEE80211_MAX_SSID_LEN];
324 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
325 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
326 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED,
330 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
331 size_t scan_ssid_len;
332 #ifdef CONFIG_MAC80211_MESH
333 struct timer_list mesh_path_timer;
334 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
336 /* Active Path Selection Protocol Identifier */
338 /* Active Path Selection Metric Identifier */
340 /* Congestion Control Mode Identifier */
342 /* Local mesh Destination Sequence Number */
344 /* Last used PREQ ID */
347 /* Timestamp of last DSN update */
348 unsigned long last_dsn_update;
349 /* Timestamp of last DSN sent */
350 unsigned long last_preq;
351 struct mesh_rmc *rmc;
352 spinlock_t mesh_preq_queue_lock;
353 struct mesh_preq_queue preq_queue;
355 struct mesh_stats mshstats;
356 struct mesh_config mshcfg;
358 bool accepting_plinks;
362 u8 *extra_ie; /* to be added to the end of AssocReq */
365 /* The last AssocReq/Resp IEs */
366 u8 *assocreq_ies, *assocresp_ies;
367 size_t assocreq_ies_len, assocresp_ies_len;
369 struct sk_buff_head skb_queue;
371 int auth_tries, assoc_tries;
373 unsigned long request;
375 unsigned long last_probe;
378 #define IEEE80211_STA_REQ_SCAN 0
379 #define IEEE80211_STA_REQ_AUTH 1
380 #define IEEE80211_STA_REQ_RUN 2
382 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
383 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
384 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
385 unsigned int auth_algs; /* bitfield of allowed auth algs */
386 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
387 int auth_transaction;
389 unsigned long ibss_join_req;
390 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
391 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
393 int wmm_last_param_set;
394 int num_beacons; /* number of TXed beacon frames by this STA */
397 static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
398 u8 mesh_id_len, u8 *mesh_id)
400 #ifdef CONFIG_MAC80211_MESH
401 ifsta->mesh_id_len = mesh_id_len;
402 memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
406 #ifdef CONFIG_MAC80211_MESH
407 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
408 do { (sta)->mshstats.name++; } while (0)
410 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
414 /* flags used in struct ieee80211_sub_if_data.flags */
415 #define IEEE80211_SDATA_ALLMULTI BIT(0)
416 #define IEEE80211_SDATA_PROMISC BIT(1)
417 #define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
418 #define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
419 struct ieee80211_sub_if_data {
420 struct list_head list;
422 struct wireless_dev wdev;
425 struct list_head key_list;
427 struct net_device *dev;
428 struct ieee80211_local *local;
432 int drop_unencrypted;
435 * basic rates of this AP or the AP we're associated to
441 /* Fragment table for host-based reassembly */
442 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
443 unsigned int fragment_next;
445 #define NUM_DEFAULT_KEYS 4
446 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
447 struct ieee80211_key *default_key;
450 * BSS configuration for this interface.
452 * FIXME: I feel bad putting this here when we already have a
453 * bss pointer, but the bss pointer is just wrong when
454 * you have multiple virtual STA mode interfaces...
455 * This needs to be fixed.
457 struct ieee80211_bss_conf bss_conf;
458 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
461 struct ieee80211_if_ap ap;
462 struct ieee80211_if_wds wds;
463 struct ieee80211_if_vlan vlan;
464 struct ieee80211_if_sta sta;
470 #ifdef CONFIG_MAC80211_DEBUGFS
471 struct dentry *debugfsdir;
474 struct dentry *channel_use;
475 struct dentry *drop_unencrypted;
476 struct dentry *state;
477 struct dentry *bssid;
478 struct dentry *prev_bssid;
479 struct dentry *ssid_len;
481 struct dentry *ap_capab;
482 struct dentry *capab;
483 struct dentry *extra_ie_len;
484 struct dentry *auth_tries;
485 struct dentry *assoc_tries;
486 struct dentry *auth_algs;
487 struct dentry *auth_alg;
488 struct dentry *auth_transaction;
489 struct dentry *flags;
490 struct dentry *num_beacons_sta;
493 struct dentry *channel_use;
494 struct dentry *drop_unencrypted;
495 struct dentry *num_sta_ps;
496 struct dentry *dtim_count;
497 struct dentry *num_beacons;
498 struct dentry *force_unicast_rateidx;
499 struct dentry *max_ratectrl_rateidx;
500 struct dentry *num_buffered_multicast;
503 struct dentry *channel_use;
504 struct dentry *drop_unencrypted;
508 struct dentry *channel_use;
509 struct dentry *drop_unencrypted;
514 struct dentry *default_key;
517 #ifdef CONFIG_MAC80211_MESH
518 struct dentry *mesh_stats_dir;
520 struct dentry *fwded_frames;
521 struct dentry *dropped_frames_ttl;
522 struct dentry *dropped_frames_no_route;
523 struct dentry *estab_plinks;
524 struct timer_list mesh_path_timer;
527 struct dentry *mesh_config_dir;
529 struct dentry *dot11MeshRetryTimeout;
530 struct dentry *dot11MeshConfirmTimeout;
531 struct dentry *dot11MeshHoldingTimeout;
532 struct dentry *dot11MeshMaxRetries;
533 struct dentry *dot11MeshTTL;
534 struct dentry *auto_open_plinks;
535 struct dentry *dot11MeshMaxPeerLinks;
536 struct dentry *dot11MeshHWMPactivePathTimeout;
537 struct dentry *dot11MeshHWMPpreqMinInterval;
538 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
539 struct dentry *dot11MeshHWMPmaxPREQretries;
540 struct dentry *path_refresh_time;
541 struct dentry *min_discovery_timeout;
546 /* must be last, dynamically sized area in this! */
547 struct ieee80211_vif vif;
551 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
553 return container_of(p, struct ieee80211_sub_if_data, vif);
556 #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
559 IEEE80211_RX_MSG = 1,
560 IEEE80211_TX_STATUS_MSG = 2,
561 IEEE80211_DELBA_MSG = 3,
562 IEEE80211_ADDBA_MSG = 4,
565 struct ieee80211_local {
566 /* embed the driver visible part.
567 * don't cast (use the static inlines below), but we keep
568 * it first anyway so they become a no-op */
569 struct ieee80211_hw hw;
571 const struct ieee80211_ops *ops;
573 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
575 int monitors, cooked_mntrs;
576 /* number of interfaces with corresponding FIF_ flags */
577 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
578 unsigned int filter_flags; /* FIF_* */
579 struct iw_statistics wstats;
581 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
582 int tx_headroom; /* required headroom for hardware/radiotap */
585 IEEE80211_DEV_UNINITIALIZED = 0,
586 IEEE80211_DEV_REGISTERED,
587 IEEE80211_DEV_UNREGISTERED,
590 /* Tasklet and skb queue to process calls from IRQ mode. All frames
591 * added to skb_queue will be processed, but frames in
592 * skb_queue_unreliable may be dropped if the total length of these
593 * queues increases over the limit. */
594 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
595 struct tasklet_struct tasklet;
596 struct sk_buff_head skb_queue;
597 struct sk_buff_head skb_queue_unreliable;
601 * The lock only protects the list, hash, timer and counter
602 * against manipulation, reads are done in RCU. Additionally,
603 * the lock protects each BSS's TIM bitmap.
606 unsigned long num_sta;
607 struct list_head sta_list;
608 struct list_head sta_flush_list;
609 struct work_struct sta_flush_work;
610 struct sta_info *sta_hash[STA_HASH_SIZE];
611 struct timer_list sta_cleanup;
613 unsigned long state[NUM_TX_DATA_QUEUES_AMPDU];
614 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES_AMPDU];
615 struct tasklet_struct tx_pending_tasklet;
617 /* number of interfaces with corresponding IFF_ flags */
618 atomic_t iff_allmultis, iff_promiscs;
620 struct rate_control_ref *rate_ctrl;
623 int fragmentation_threshold;
624 int short_retry_limit; /* dot11ShortRetryLimit */
625 int long_retry_limit; /* dot11LongRetryLimit */
627 struct crypto_blkcipher *wep_tx_tfm;
628 struct crypto_blkcipher *wep_rx_tfm;
631 int bridge_packets; /* bridge packets between associated stations and
632 * deliver multicast frames both back to wireless
633 * media and to the local net stack */
635 struct list_head interfaces;
638 * Key lock, protects sdata's key_list and sta_info's
639 * key pointers (write access, they're RCU.)
644 bool sta_sw_scanning;
645 bool sta_hw_scanning;
646 int scan_channel_idx;
647 enum ieee80211_band scan_band;
649 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
650 unsigned long last_scan_completed;
651 struct delayed_work scan_work;
652 struct net_device *scan_dev;
653 struct ieee80211_channel *oper_channel, *scan_channel;
654 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
655 size_t scan_ssid_len;
656 struct list_head sta_bss_list;
657 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
658 spinlock_t sta_bss_lock;
661 /* dot11CountersTable */
662 u32 dot11TransmittedFragmentCount;
663 u32 dot11MulticastTransmittedFrameCount;
664 u32 dot11FailedCount;
666 u32 dot11MultipleRetryCount;
667 u32 dot11FrameDuplicateCount;
668 u32 dot11ReceivedFragmentCount;
669 u32 dot11MulticastReceivedFrameCount;
670 u32 dot11TransmittedFrameCount;
671 u32 dot11WEPUndecryptableCount;
673 #ifdef CONFIG_MAC80211_LEDS
674 int tx_led_counter, rx_led_counter;
675 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
676 char tx_led_name[32], rx_led_name[32],
677 assoc_led_name[32], radio_led_name[32];
683 #ifdef CONFIG_MAC80211_DEBUGFS
684 struct work_struct sta_debugfs_add;
687 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
688 /* TX/RX handler statistics */
689 unsigned int tx_handlers_drop;
690 unsigned int tx_handlers_queued;
691 unsigned int tx_handlers_drop_unencrypted;
692 unsigned int tx_handlers_drop_fragment;
693 unsigned int tx_handlers_drop_wep;
694 unsigned int tx_handlers_drop_not_assoc;
695 unsigned int tx_handlers_drop_unauth_port;
696 unsigned int rx_handlers_drop;
697 unsigned int rx_handlers_queued;
698 unsigned int rx_handlers_drop_nullfunc;
699 unsigned int rx_handlers_drop_defrag;
700 unsigned int rx_handlers_drop_short;
701 unsigned int rx_handlers_drop_passive_scan;
702 unsigned int tx_expand_skb_head;
703 unsigned int tx_expand_skb_head_cloned;
704 unsigned int rx_expand_skb_head;
705 unsigned int rx_expand_skb_head2;
706 unsigned int rx_handlers_fragments;
707 unsigned int tx_status_drop;
708 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
709 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
710 #define I802_DEBUG_INC(c) (c)++
711 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
712 #define I802_DEBUG_INC(c) do { } while (0)
713 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
716 int total_ps_buffered; /* total number of all buffered unicast and
717 * multicast packets for power saving stations
719 int wifi_wme_noack_test;
720 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
722 #ifdef CONFIG_MAC80211_DEBUGFS
723 struct local_debugfsdentries {
724 struct dentry *frequency;
725 struct dentry *antenna_sel_tx;
726 struct dentry *antenna_sel_rx;
727 struct dentry *bridge_packets;
728 struct dentry *rts_threshold;
729 struct dentry *fragmentation_threshold;
730 struct dentry *short_retry_limit;
731 struct dentry *long_retry_limit;
732 struct dentry *total_ps_buffered;
733 struct dentry *wep_iv;
734 struct dentry *statistics;
735 struct local_debugfsdentries_statsdentries {
736 struct dentry *transmitted_fragment_count;
737 struct dentry *multicast_transmitted_frame_count;
738 struct dentry *failed_count;
739 struct dentry *retry_count;
740 struct dentry *multiple_retry_count;
741 struct dentry *frame_duplicate_count;
742 struct dentry *received_fragment_count;
743 struct dentry *multicast_received_frame_count;
744 struct dentry *transmitted_frame_count;
745 struct dentry *wep_undecryptable_count;
746 struct dentry *num_scans;
747 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
748 struct dentry *tx_handlers_drop;
749 struct dentry *tx_handlers_queued;
750 struct dentry *tx_handlers_drop_unencrypted;
751 struct dentry *tx_handlers_drop_fragment;
752 struct dentry *tx_handlers_drop_wep;
753 struct dentry *tx_handlers_drop_not_assoc;
754 struct dentry *tx_handlers_drop_unauth_port;
755 struct dentry *rx_handlers_drop;
756 struct dentry *rx_handlers_queued;
757 struct dentry *rx_handlers_drop_nullfunc;
758 struct dentry *rx_handlers_drop_defrag;
759 struct dentry *rx_handlers_drop_short;
760 struct dentry *rx_handlers_drop_passive_scan;
761 struct dentry *tx_expand_skb_head;
762 struct dentry *tx_expand_skb_head_cloned;
763 struct dentry *rx_expand_skb_head;
764 struct dentry *rx_expand_skb_head2;
765 struct dentry *rx_handlers_fragments;
766 struct dentry *tx_status_drop;
767 struct dentry *wme_tx_queue;
768 struct dentry *wme_rx_queue;
770 struct dentry *dot11ACKFailureCount;
771 struct dentry *dot11RTSFailureCount;
772 struct dentry *dot11FCSErrorCount;
773 struct dentry *dot11RTSSuccessCount;
775 struct dentry *stations;
781 /* this struct represents 802.11n's RA/TID combination */
782 struct ieee80211_ra_tid {
787 /* Parsed Information Elements */
788 struct ieee802_11_elems {
789 /* pointers to IEs */
813 /* length of them, respectively */
825 u8 ext_supp_rates_len;
838 static inline struct ieee80211_local *hw_to_local(
839 struct ieee80211_hw *hw)
841 return container_of(hw, struct ieee80211_local, hw);
844 static inline struct ieee80211_hw *local_to_hw(
845 struct ieee80211_local *local)
850 enum ieee80211_link_state_t {
851 IEEE80211_LINK_STATE_XOFF = 0,
852 IEEE80211_LINK_STATE_PENDING,
855 struct sta_attribute {
856 struct attribute attr;
857 ssize_t (*show)(const struct sta_info *, char *buf);
858 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
861 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
863 return compare_ether_addr(raddr, addr) == 0 ||
864 is_broadcast_ether_addr(raddr);
869 int ieee80211_hw_config(struct ieee80211_local *local);
870 int ieee80211_if_config(struct net_device *dev);
871 int ieee80211_if_config_beacon(struct net_device *dev);
872 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
873 void ieee80211_if_setup(struct net_device *dev);
874 u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
875 struct ieee80211_ht_info *req_ht_cap,
876 struct ieee80211_ht_bss_info *req_bss_cap);
878 /* ieee80211_ioctl.c */
879 extern const struct iw_handler_def ieee80211_iw_handler_def;
882 /* Least common multiple of the used rates (in 100 kbps). This is used to
883 * calculate rate_inv values for each rate so that only integers are needed. */
884 #define CHAN_UTIL_RATE_LCM 95040
885 /* 1 usec is 1/8 * (95040/10) = 1188 */
886 #define CHAN_UTIL_PER_USEC 1188
887 /* Amount of bits to shift the result right to scale the total utilization
888 * to values that will not wrap around 32-bit integers. */
889 #define CHAN_UTIL_SHIFT 9
890 /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
891 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
892 * raw value with about 23 should give utilization in 10th of a percentage
893 * (1/1000). However, utilization is only estimated and not all intervals
894 * between frames etc. are calculated. 18 seems to give numbers that are closer
895 * to the real maximum. */
896 #define CHAN_UTIL_PER_10MS 18
897 #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
898 #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
901 /* ieee80211_ioctl.c */
902 int ieee80211_set_freq(struct ieee80211_local *local, int freq);
903 /* ieee80211_sta.c */
904 void ieee80211_sta_timer(unsigned long data);
905 void ieee80211_sta_work(struct work_struct *work);
906 void ieee80211_sta_scan_work(struct work_struct *work);
907 void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
908 struct ieee80211_rx_status *rx_status);
909 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
910 int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
911 int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
912 int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
913 void ieee80211_sta_req_auth(struct net_device *dev,
914 struct ieee80211_if_sta *ifsta);
915 int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
916 ieee80211_rx_result ieee80211_sta_rx_scan(
917 struct net_device *dev, struct sk_buff *skb,
918 struct ieee80211_rx_status *rx_status);
919 void ieee80211_rx_bss_list_init(struct net_device *dev);
920 void ieee80211_rx_bss_list_deinit(struct net_device *dev);
921 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
922 struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
923 struct sk_buff *skb, u8 *bssid,
925 int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
926 int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
927 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
929 void ieee80211_reset_erp_info(struct net_device *dev);
930 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
931 struct ieee80211_ht_info *ht_info);
932 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
933 struct ieee80211_ht_addt_info *ht_add_info_ie,
934 struct ieee80211_ht_bss_info *bss_info);
935 void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
936 u16 tid, u8 dialog_token, u16 start_seq_num,
937 u16 agg_size, u16 timeout);
938 void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
939 u16 initiator, u16 reason_code);
941 void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
942 u16 tid, u16 initiator, u16 reason);
943 void sta_rx_agg_session_timer_expired(unsigned long data);
944 void sta_addba_resp_timer_expired(unsigned long data);
945 void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr);
946 u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
947 struct ieee802_11_elems *elems,
948 enum ieee80211_band band);
949 void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
951 void ieee802_11_parse_elems(u8 *start, size_t len,
952 struct ieee802_11_elems *elems);
954 #ifdef CONFIG_MAC80211_MESH
955 void ieee80211_start_mesh(struct net_device *dev);
957 static inline void ieee80211_start_mesh(struct net_device *dev)
961 /* ieee80211_iface.c */
962 int ieee80211_if_add(struct net_device *dev, const char *name,
963 struct net_device **new_dev, int type,
964 struct vif_params *params);
965 void ieee80211_if_set_type(struct net_device *dev, int type);
966 void ieee80211_if_reinit(struct net_device *dev);
967 void __ieee80211_if_del(struct ieee80211_local *local,
968 struct ieee80211_sub_if_data *sdata);
969 int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
970 void ieee80211_if_free(struct net_device *dev);
971 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
974 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
975 void ieee80211_tx_pending(unsigned long data);
976 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
977 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
978 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
980 /* utility functions/constants */
981 extern void *mac80211_wiphy_privid; /* for wiphy privid */
982 extern const unsigned char rfc1042_header[6];
983 extern const unsigned char bridge_tunnel_header[6];
984 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
985 enum ieee80211_if_types type);
986 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
987 int rate, int erp, int short_preamble);
988 void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
989 struct ieee80211_hdr *hdr);
991 #endif /* IEEE80211_I_H */