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 */
85 int rssi, signal, noise;
94 #define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
96 size_t supp_rates_len;
101 unsigned long last_update;
103 /* during assocation, we save an ERP value from a probe response so
104 * that we can feed ERP info to the driver when handling the
105 * association completes. these fields probably won't be up-to-date
106 * otherwise, you probably don't want to use them. */
113 TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
114 } ieee80211_txrx_result;
116 /* flags used in struct ieee80211_txrx_data.flags */
117 /* whether the MSDU was fragmented */
118 #define IEEE80211_TXRXD_FRAGMENTED BIT(0)
119 #define IEEE80211_TXRXD_TXUNICAST BIT(1)
120 #define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
121 #define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
122 #define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
123 /* frame is destined to interface currently processed (incl. multicast frames) */
124 #define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
125 #define IEEE80211_TXRXD_TX_INJECTED BIT(6)
126 #define IEEE80211_TXRXD_RX_AMSDU BIT(7)
127 struct ieee80211_txrx_data {
129 struct net_device *dev;
130 struct ieee80211_local *local;
131 struct ieee80211_sub_if_data *sdata;
132 struct sta_info *sta;
134 struct ieee80211_key *key;
138 struct ieee80211_tx_control *control;
139 struct ieee80211_hw_mode *mode;
140 struct ieee80211_rate *rate;
141 /* use this rate (if set) for last fragment; rate can
142 * be set to lower rate for the first fragments, e.g.,
143 * when using CTS protection with IEEE 802.11g. */
144 struct ieee80211_rate *last_frag_rate;
145 int last_frag_hwrate;
147 /* Extra fragments (in addition to the first fragment
150 struct sk_buff **extra_frag;
153 struct ieee80211_rx_status *status;
154 int sent_ps_buffered;
163 /* flags used in struct ieee80211_tx_packet_data.flags */
164 #define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
165 #define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
166 #define IEEE80211_TXPD_REQUEUE BIT(2)
167 #define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
168 /* Stored in sk_buff->cb */
169 struct ieee80211_tx_packet_data {
171 unsigned long jiffies;
176 struct ieee80211_tx_stored_packet {
177 struct ieee80211_tx_control control;
180 struct sk_buff **extra_frag;
181 int last_frag_rateidx;
182 int last_frag_hwrate;
183 struct ieee80211_rate *last_frag_rate;
184 unsigned int last_frag_rate_ctrl_probe;
187 typedef ieee80211_txrx_result (*ieee80211_tx_handler)
188 (struct ieee80211_txrx_data *tx);
190 typedef ieee80211_txrx_result (*ieee80211_rx_handler)
191 (struct ieee80211_txrx_data *rx);
193 struct ieee80211_if_ap {
194 u8 *beacon_head, *beacon_tail;
195 int beacon_head_len, beacon_tail_len;
197 struct list_head vlans;
199 u8 ssid[IEEE80211_MAX_SSID_LEN];
202 /* yes, this looks ugly, but guarantees that we can later use
204 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
205 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
206 atomic_t num_sta_ps; /* number of stations in PS mode */
207 struct sk_buff_head ps_bc_buf;
208 int dtim_period, dtim_count;
209 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
210 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
211 int num_beacons; /* number of TXed beacon frames for this BSS */
214 struct ieee80211_if_wds {
215 u8 remote_addr[ETH_ALEN];
216 struct sta_info *sta;
219 struct ieee80211_if_vlan {
220 struct ieee80211_sub_if_data *ap;
221 struct list_head list;
224 /* flags used in struct ieee80211_if_sta.flags */
225 #define IEEE80211_STA_SSID_SET BIT(0)
226 #define IEEE80211_STA_BSSID_SET BIT(1)
227 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
228 #define IEEE80211_STA_AUTHENTICATED BIT(3)
229 #define IEEE80211_STA_ASSOCIATED BIT(4)
230 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
231 #define IEEE80211_STA_CREATE_IBSS BIT(6)
232 #define IEEE80211_STA_MIXED_CELL BIT(7)
233 #define IEEE80211_STA_WMM_ENABLED BIT(8)
234 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
235 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
236 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
237 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
238 struct ieee80211_if_sta {
240 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
241 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
242 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
244 struct timer_list timer;
245 struct work_struct work;
246 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
247 u8 ssid[IEEE80211_MAX_SSID_LEN];
249 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
250 size_t scan_ssid_len;
253 u8 *extra_ie; /* to be added to the end of AssocReq */
256 /* The last AssocReq/Resp IEs */
257 u8 *assocreq_ies, *assocresp_ies;
258 size_t assocreq_ies_len, assocresp_ies_len;
260 int auth_tries, assoc_tries;
263 #define IEEE80211_STA_REQ_SCAN 0
264 #define IEEE80211_STA_REQ_AUTH 1
265 #define IEEE80211_STA_REQ_RUN 2
266 unsigned long request;
267 struct sk_buff_head skb_queue;
269 unsigned long last_probe;
271 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
272 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
273 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
274 unsigned int auth_algs; /* bitfield of allowed auth algs */
275 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
276 int auth_transaction;
278 unsigned long ibss_join_req;
279 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
282 int wmm_last_param_set;
286 /* flags used in struct ieee80211_sub_if_data.flags */
287 #define IEEE80211_SDATA_ALLMULTI BIT(0)
288 #define IEEE80211_SDATA_PROMISC BIT(1)
289 #define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
290 /* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
291 * generator reports that there are no present stations that cannot support short
293 #define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
294 #define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
295 struct ieee80211_sub_if_data {
296 struct list_head list;
298 struct wireless_dev wdev;
301 struct list_head key_list;
303 struct net_device *dev;
304 struct ieee80211_local *local;
308 int drop_unencrypted;
310 * IEEE 802.1X Port access control in effect,
311 * drop packets to/from unauthorized port
317 /* Fragment table for host-based reassembly */
318 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
319 unsigned int fragment_next;
321 #define NUM_DEFAULT_KEYS 4
322 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
323 struct ieee80211_key *default_key;
325 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
328 struct ieee80211_if_ap ap;
329 struct ieee80211_if_wds wds;
330 struct ieee80211_if_vlan vlan;
331 struct ieee80211_if_sta sta;
336 #ifdef CONFIG_MAC80211_DEBUGFS
337 struct dentry *debugfsdir;
340 struct dentry *channel_use;
341 struct dentry *drop_unencrypted;
342 struct dentry *ieee802_1x_pac;
343 struct dentry *state;
344 struct dentry *bssid;
345 struct dentry *prev_bssid;
346 struct dentry *ssid_len;
348 struct dentry *ap_capab;
349 struct dentry *capab;
350 struct dentry *extra_ie_len;
351 struct dentry *auth_tries;
352 struct dentry *assoc_tries;
353 struct dentry *auth_algs;
354 struct dentry *auth_alg;
355 struct dentry *auth_transaction;
356 struct dentry *flags;
359 struct dentry *channel_use;
360 struct dentry *drop_unencrypted;
361 struct dentry *ieee802_1x_pac;
362 struct dentry *num_sta_ps;
363 struct dentry *dtim_period;
364 struct dentry *dtim_count;
365 struct dentry *num_beacons;
366 struct dentry *force_unicast_rateidx;
367 struct dentry *max_ratectrl_rateidx;
368 struct dentry *num_buffered_multicast;
369 struct dentry *beacon_head_len;
370 struct dentry *beacon_tail_len;
373 struct dentry *channel_use;
374 struct dentry *drop_unencrypted;
375 struct dentry *ieee802_1x_pac;
379 struct dentry *channel_use;
380 struct dentry *drop_unencrypted;
381 struct dentry *ieee802_1x_pac;
386 struct dentry *default_key;
389 /* must be last, dynamically sized area in this! */
390 struct ieee80211_vif vif;
394 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
396 return container_of(p, struct ieee80211_sub_if_data, vif);
399 #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
402 IEEE80211_RX_MSG = 1,
403 IEEE80211_TX_STATUS_MSG = 2,
406 struct ieee80211_local {
407 /* embed the driver visible part.
408 * don't cast (use the static inlines below), but we keep
409 * it first anyway so they become a no-op */
410 struct ieee80211_hw hw;
412 const struct ieee80211_ops *ops;
414 /* List of registered struct ieee80211_hw_mode */
415 struct list_head modes_list;
417 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
420 unsigned int filter_flags; /* FIF_* */
421 struct iw_statistics wstats;
423 int tx_headroom; /* required headroom for hardware/radiotap */
426 IEEE80211_DEV_UNINITIALIZED = 0,
427 IEEE80211_DEV_REGISTERED,
428 IEEE80211_DEV_UNREGISTERED,
431 /* Tasklet and skb queue to process calls from IRQ mode. All frames
432 * added to skb_queue will be processed, but frames in
433 * skb_queue_unreliable may be dropped if the total length of these
434 * queues increases over the limit. */
435 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
436 struct tasklet_struct tasklet;
437 struct sk_buff_head skb_queue;
438 struct sk_buff_head skb_queue_unreliable;
440 /* Station data structures */
441 rwlock_t sta_lock; /* protects STA data structures */
442 int num_sta; /* number of stations in sta_list */
443 struct list_head sta_list;
444 struct sta_info *sta_hash[STA_HASH_SIZE];
445 struct timer_list sta_cleanup;
447 unsigned long state[NUM_TX_DATA_QUEUES];
448 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
449 struct tasklet_struct tx_pending_tasklet;
451 /* number of interfaces with corresponding IFF_ flags */
452 atomic_t iff_allmultis, iff_promiscs;
454 struct rate_control_ref *rate_ctrl;
456 /* Supported and basic rate filters for different modes. These are
457 * pointers to -1 terminated lists and rates in 100 kbps units. */
458 int *supp_rates[NUM_IEEE80211_MODES];
459 int *basic_rates[NUM_IEEE80211_MODES];
462 int fragmentation_threshold;
463 int short_retry_limit; /* dot11ShortRetryLimit */
464 int long_retry_limit; /* dot11LongRetryLimit */
466 struct crypto_blkcipher *wep_tx_tfm;
467 struct crypto_blkcipher *wep_rx_tfm;
470 int bridge_packets; /* bridge packets between associated stations and
471 * deliver multicast frames both back to wireless
472 * media and to the local net stack */
474 ieee80211_rx_handler *rx_pre_handlers;
475 ieee80211_rx_handler *rx_handlers;
476 ieee80211_tx_handler *tx_handlers;
478 struct list_head interfaces;
480 bool sta_sw_scanning;
481 bool sta_hw_scanning;
482 int scan_channel_idx;
483 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
484 unsigned long last_scan_completed;
485 struct delayed_work scan_work;
486 struct net_device *scan_dev;
487 struct ieee80211_channel *oper_channel, *scan_channel;
488 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
489 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
490 size_t scan_ssid_len;
491 struct list_head sta_bss_list;
492 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
493 spinlock_t sta_bss_lock;
496 /* dot11CountersTable */
497 u32 dot11TransmittedFragmentCount;
498 u32 dot11MulticastTransmittedFrameCount;
499 u32 dot11FailedCount;
501 u32 dot11MultipleRetryCount;
502 u32 dot11FrameDuplicateCount;
503 u32 dot11ReceivedFragmentCount;
504 u32 dot11MulticastReceivedFrameCount;
505 u32 dot11TransmittedFrameCount;
506 u32 dot11WEPUndecryptableCount;
508 #ifdef CONFIG_MAC80211_LEDS
509 int tx_led_counter, rx_led_counter;
510 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
511 char tx_led_name[32], rx_led_name[32],
512 assoc_led_name[32], radio_led_name[32];
518 #ifdef CONFIG_MAC80211_DEBUGFS
519 struct work_struct sta_debugfs_add;
522 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
523 /* TX/RX handler statistics */
524 unsigned int tx_handlers_drop;
525 unsigned int tx_handlers_queued;
526 unsigned int tx_handlers_drop_unencrypted;
527 unsigned int tx_handlers_drop_fragment;
528 unsigned int tx_handlers_drop_wep;
529 unsigned int tx_handlers_drop_not_assoc;
530 unsigned int tx_handlers_drop_unauth_port;
531 unsigned int rx_handlers_drop;
532 unsigned int rx_handlers_queued;
533 unsigned int rx_handlers_drop_nullfunc;
534 unsigned int rx_handlers_drop_defrag;
535 unsigned int rx_handlers_drop_short;
536 unsigned int rx_handlers_drop_passive_scan;
537 unsigned int tx_expand_skb_head;
538 unsigned int tx_expand_skb_head_cloned;
539 unsigned int rx_expand_skb_head;
540 unsigned int rx_expand_skb_head2;
541 unsigned int rx_handlers_fragments;
542 unsigned int tx_status_drop;
543 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
544 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
545 #define I802_DEBUG_INC(c) (c)++
546 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
547 #define I802_DEBUG_INC(c) do { } while (0)
548 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
551 int total_ps_buffered; /* total number of all buffered unicast and
552 * multicast packets for power saving stations
554 int wifi_wme_noack_test;
555 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
557 unsigned int enabled_modes; /* bitfield of allowed modes;
559 unsigned int hw_modes; /* bitfield of supported hardware modes;
562 #ifdef CONFIG_MAC80211_DEBUGFS
563 struct local_debugfsdentries {
564 struct dentry *channel;
565 struct dentry *frequency;
566 struct dentry *antenna_sel_tx;
567 struct dentry *antenna_sel_rx;
568 struct dentry *bridge_packets;
569 struct dentry *rts_threshold;
570 struct dentry *fragmentation_threshold;
571 struct dentry *short_retry_limit;
572 struct dentry *long_retry_limit;
573 struct dentry *total_ps_buffered;
575 struct dentry *wep_iv;
576 struct dentry *modes;
577 struct dentry *statistics;
578 struct local_debugfsdentries_statsdentries {
579 struct dentry *transmitted_fragment_count;
580 struct dentry *multicast_transmitted_frame_count;
581 struct dentry *failed_count;
582 struct dentry *retry_count;
583 struct dentry *multiple_retry_count;
584 struct dentry *frame_duplicate_count;
585 struct dentry *received_fragment_count;
586 struct dentry *multicast_received_frame_count;
587 struct dentry *transmitted_frame_count;
588 struct dentry *wep_undecryptable_count;
589 struct dentry *num_scans;
590 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
591 struct dentry *tx_handlers_drop;
592 struct dentry *tx_handlers_queued;
593 struct dentry *tx_handlers_drop_unencrypted;
594 struct dentry *tx_handlers_drop_fragment;
595 struct dentry *tx_handlers_drop_wep;
596 struct dentry *tx_handlers_drop_not_assoc;
597 struct dentry *tx_handlers_drop_unauth_port;
598 struct dentry *rx_handlers_drop;
599 struct dentry *rx_handlers_queued;
600 struct dentry *rx_handlers_drop_nullfunc;
601 struct dentry *rx_handlers_drop_defrag;
602 struct dentry *rx_handlers_drop_short;
603 struct dentry *rx_handlers_drop_passive_scan;
604 struct dentry *tx_expand_skb_head;
605 struct dentry *tx_expand_skb_head_cloned;
606 struct dentry *rx_expand_skb_head;
607 struct dentry *rx_expand_skb_head2;
608 struct dentry *rx_handlers_fragments;
609 struct dentry *tx_status_drop;
610 struct dentry *wme_tx_queue;
611 struct dentry *wme_rx_queue;
613 struct dentry *dot11ACKFailureCount;
614 struct dentry *dot11RTSFailureCount;
615 struct dentry *dot11FCSErrorCount;
616 struct dentry *dot11RTSSuccessCount;
618 struct dentry *stations;
624 static inline struct ieee80211_local *hw_to_local(
625 struct ieee80211_hw *hw)
627 return container_of(hw, struct ieee80211_local, hw);
630 static inline struct ieee80211_hw *local_to_hw(
631 struct ieee80211_local *local)
636 enum ieee80211_link_state_t {
637 IEEE80211_LINK_STATE_XOFF = 0,
638 IEEE80211_LINK_STATE_PENDING,
641 struct sta_attribute {
642 struct attribute attr;
643 ssize_t (*show)(const struct sta_info *, char *buf);
644 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
647 static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
650 * This format has been mandated by the IEEE specifications,
651 * so this line may not be changed to use the __set_bit() format.
653 bss->tim[aid / 8] |= (1 << (aid % 8));
656 static inline void bss_tim_set(struct ieee80211_local *local,
657 struct ieee80211_if_ap *bss, u16 aid)
659 read_lock_bh(&local->sta_lock);
660 __bss_tim_set(bss, aid);
661 read_unlock_bh(&local->sta_lock);
664 static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
667 * This format has been mandated by the IEEE specifications,
668 * so this line may not be changed to use the __clear_bit() format.
670 bss->tim[aid / 8] &= ~(1 << (aid % 8));
673 static inline void bss_tim_clear(struct ieee80211_local *local,
674 struct ieee80211_if_ap *bss, u16 aid)
676 read_lock_bh(&local->sta_lock);
677 __bss_tim_clear(bss, aid);
678 read_unlock_bh(&local->sta_lock);
682 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
683 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
684 * @rate: Transmission rate to check, in 100 kbps
686 * Check if a given rate is an Extended Rate PHY (ERP) rate.
688 static inline int ieee80211_is_erp_rate(int phymode, int rate)
690 if (phymode == MODE_IEEE80211G) {
691 if (rate != 10 && rate != 20 &&
692 rate != 55 && rate != 110)
698 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
700 return compare_ether_addr(raddr, addr) == 0 ||
701 is_broadcast_ether_addr(raddr);
706 int ieee80211_hw_config(struct ieee80211_local *local);
707 int ieee80211_if_config(struct net_device *dev);
708 int ieee80211_if_config_beacon(struct net_device *dev);
709 void ieee80211_prepare_rates(struct ieee80211_local *local,
710 struct ieee80211_hw_mode *mode);
711 void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
712 int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
713 void ieee80211_if_setup(struct net_device *dev);
714 struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
715 int phymode, int hwrate);
716 int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
717 struct ieee80211_ht_info *req_ht_cap,
718 struct ieee80211_ht_bss_info *req_bss_cap);
720 /* ieee80211_ioctl.c */
721 extern const struct iw_handler_def ieee80211_iw_handler_def;
724 /* Least common multiple of the used rates (in 100 kbps). This is used to
725 * calculate rate_inv values for each rate so that only integers are needed. */
726 #define CHAN_UTIL_RATE_LCM 95040
727 /* 1 usec is 1/8 * (95040/10) = 1188 */
728 #define CHAN_UTIL_PER_USEC 1188
729 /* Amount of bits to shift the result right to scale the total utilization
730 * to values that will not wrap around 32-bit integers. */
731 #define CHAN_UTIL_SHIFT 9
732 /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
733 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
734 * raw value with about 23 should give utilization in 10th of a percentage
735 * (1/1000). However, utilization is only estimated and not all intervals
736 * between frames etc. are calculated. 18 seems to give numbers that are closer
737 * to the real maximum. */
738 #define CHAN_UTIL_PER_10MS 18
739 #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
740 #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
743 /* ieee80211_ioctl.c */
744 int ieee80211_set_compression(struct ieee80211_local *local,
745 struct net_device *dev, struct sta_info *sta);
746 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
747 /* ieee80211_sta.c */
748 void ieee80211_sta_timer(unsigned long data);
749 void ieee80211_sta_work(struct work_struct *work);
750 void ieee80211_sta_scan_work(struct work_struct *work);
751 void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
752 struct ieee80211_rx_status *rx_status);
753 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
754 int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
755 int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
756 int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
757 void ieee80211_sta_req_auth(struct net_device *dev,
758 struct ieee80211_if_sta *ifsta);
759 int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
760 ieee80211_txrx_result ieee80211_sta_rx_scan(struct net_device *dev,
762 struct ieee80211_rx_status *rx_status);
763 void ieee80211_rx_bss_list_init(struct net_device *dev);
764 void ieee80211_rx_bss_list_deinit(struct net_device *dev);
765 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
766 struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
767 struct sk_buff *skb, u8 *bssid,
769 int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
770 int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
771 void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
772 void ieee80211_reset_erp_info(struct net_device *dev);
773 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
774 struct ieee80211_ht_info *ht_info);
775 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
776 struct ieee80211_ht_addt_info *ht_add_info_ie,
777 struct ieee80211_ht_bss_info *bss_info);
778 void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
779 u16 tid, u16 initiator, u16 reason);
780 void sta_rx_agg_session_timer_expired(unsigned long data);
781 /* ieee80211_iface.c */
782 int ieee80211_if_add(struct net_device *dev, const char *name,
783 struct net_device **new_dev, int type);
784 void ieee80211_if_set_type(struct net_device *dev, int type);
785 void ieee80211_if_reinit(struct net_device *dev);
786 void __ieee80211_if_del(struct ieee80211_local *local,
787 struct ieee80211_sub_if_data *sdata);
788 int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
789 void ieee80211_if_free(struct net_device *dev);
790 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
793 void ieee80211_regdomain_init(void);
794 void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
797 extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
798 extern ieee80211_rx_handler ieee80211_rx_handlers[];
801 extern ieee80211_tx_handler ieee80211_tx_handlers[];
802 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
803 void ieee80211_tx_pending(unsigned long data);
804 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
805 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
806 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
808 /* utility functions/constants */
809 extern void *mac80211_wiphy_privid; /* for wiphy privid */
810 extern const unsigned char rfc1042_header[6];
811 extern const unsigned char bridge_tunnel_header[6];
812 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
813 enum ieee80211_if_types type);
814 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
815 int rate, int erp, int short_preamble);
816 void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
817 struct ieee80211_hdr *hdr);
819 #endif /* IEEE80211_I_H */