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);
195 int head_len, tail_len;
199 struct ieee80211_if_ap {
200 struct beacon_data *beacon;
202 struct list_head vlans;
204 u8 ssid[IEEE80211_MAX_SSID_LEN];
207 /* yes, this looks ugly, but guarantees that we can later use
209 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
210 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
211 atomic_t num_sta_ps; /* number of stations in PS mode */
212 struct sk_buff_head ps_bc_buf;
214 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
215 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
216 int num_beacons; /* number of TXed beacon frames for this BSS */
219 struct ieee80211_if_wds {
220 u8 remote_addr[ETH_ALEN];
221 struct sta_info *sta;
224 struct ieee80211_if_vlan {
225 struct ieee80211_sub_if_data *ap;
226 struct list_head list;
229 /* flags used in struct ieee80211_if_sta.flags */
230 #define IEEE80211_STA_SSID_SET BIT(0)
231 #define IEEE80211_STA_BSSID_SET BIT(1)
232 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
233 #define IEEE80211_STA_AUTHENTICATED BIT(3)
234 #define IEEE80211_STA_ASSOCIATED BIT(4)
235 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
236 #define IEEE80211_STA_CREATE_IBSS BIT(6)
237 #define IEEE80211_STA_MIXED_CELL BIT(7)
238 #define IEEE80211_STA_WMM_ENABLED BIT(8)
239 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
240 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
241 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
242 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
243 struct ieee80211_if_sta {
245 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
246 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
247 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
249 struct timer_list timer;
250 struct work_struct work;
251 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
252 u8 ssid[IEEE80211_MAX_SSID_LEN];
254 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
255 size_t scan_ssid_len;
258 u8 *extra_ie; /* to be added to the end of AssocReq */
261 /* The last AssocReq/Resp IEs */
262 u8 *assocreq_ies, *assocresp_ies;
263 size_t assocreq_ies_len, assocresp_ies_len;
265 int auth_tries, assoc_tries;
268 #define IEEE80211_STA_REQ_SCAN 0
269 #define IEEE80211_STA_REQ_AUTH 1
270 #define IEEE80211_STA_REQ_RUN 2
271 unsigned long request;
272 struct sk_buff_head skb_queue;
274 unsigned long last_probe;
276 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
277 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
278 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
279 unsigned int auth_algs; /* bitfield of allowed auth algs */
280 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
281 int auth_transaction;
283 unsigned long ibss_join_req;
284 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
287 int wmm_last_param_set;
291 /* flags used in struct ieee80211_sub_if_data.flags */
292 #define IEEE80211_SDATA_ALLMULTI BIT(0)
293 #define IEEE80211_SDATA_PROMISC BIT(1)
294 #define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
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;
326 * BSS configuration for this interface.
328 * FIXME: I feel bad putting this here when we already have a
329 * bss pointer, but the bss pointer is just wrong when
330 * you have multiple virtual STA mode interfaces...
331 * This needs to be fixed.
333 struct ieee80211_bss_conf bss_conf;
334 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
337 struct ieee80211_if_ap ap;
338 struct ieee80211_if_wds wds;
339 struct ieee80211_if_vlan vlan;
340 struct ieee80211_if_sta sta;
345 #ifdef CONFIG_MAC80211_DEBUGFS
346 struct dentry *debugfsdir;
349 struct dentry *channel_use;
350 struct dentry *drop_unencrypted;
351 struct dentry *ieee802_1x_pac;
352 struct dentry *state;
353 struct dentry *bssid;
354 struct dentry *prev_bssid;
355 struct dentry *ssid_len;
357 struct dentry *ap_capab;
358 struct dentry *capab;
359 struct dentry *extra_ie_len;
360 struct dentry *auth_tries;
361 struct dentry *assoc_tries;
362 struct dentry *auth_algs;
363 struct dentry *auth_alg;
364 struct dentry *auth_transaction;
365 struct dentry *flags;
368 struct dentry *channel_use;
369 struct dentry *drop_unencrypted;
370 struct dentry *ieee802_1x_pac;
371 struct dentry *num_sta_ps;
372 struct dentry *dtim_count;
373 struct dentry *num_beacons;
374 struct dentry *force_unicast_rateidx;
375 struct dentry *max_ratectrl_rateidx;
376 struct dentry *num_buffered_multicast;
379 struct dentry *channel_use;
380 struct dentry *drop_unencrypted;
381 struct dentry *ieee802_1x_pac;
385 struct dentry *channel_use;
386 struct dentry *drop_unencrypted;
387 struct dentry *ieee802_1x_pac;
392 struct dentry *default_key;
395 /* must be last, dynamically sized area in this! */
396 struct ieee80211_vif vif;
400 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
402 return container_of(p, struct ieee80211_sub_if_data, vif);
405 #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
408 IEEE80211_RX_MSG = 1,
409 IEEE80211_TX_STATUS_MSG = 2,
410 IEEE80211_DELBA_MSG = 3,
411 IEEE80211_ADDBA_MSG = 4,
414 struct ieee80211_local {
415 /* embed the driver visible part.
416 * don't cast (use the static inlines below), but we keep
417 * it first anyway so they become a no-op */
418 struct ieee80211_hw hw;
420 const struct ieee80211_ops *ops;
422 /* List of registered struct ieee80211_hw_mode */
423 struct list_head modes_list;
425 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
428 unsigned int filter_flags; /* FIF_* */
429 struct iw_statistics wstats;
431 int tx_headroom; /* required headroom for hardware/radiotap */
434 IEEE80211_DEV_UNINITIALIZED = 0,
435 IEEE80211_DEV_REGISTERED,
436 IEEE80211_DEV_UNREGISTERED,
439 /* Tasklet and skb queue to process calls from IRQ mode. All frames
440 * added to skb_queue will be processed, but frames in
441 * skb_queue_unreliable may be dropped if the total length of these
442 * queues increases over the limit. */
443 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
444 struct tasklet_struct tasklet;
445 struct sk_buff_head skb_queue;
446 struct sk_buff_head skb_queue_unreliable;
448 /* Station data structures */
449 rwlock_t sta_lock; /* protects STA data structures */
450 int num_sta; /* number of stations in sta_list */
451 struct list_head sta_list;
452 struct sta_info *sta_hash[STA_HASH_SIZE];
453 struct timer_list sta_cleanup;
455 unsigned long state[NUM_TX_DATA_QUEUES];
456 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
457 struct tasklet_struct tx_pending_tasklet;
459 /* number of interfaces with corresponding IFF_ flags */
460 atomic_t iff_allmultis, iff_promiscs;
462 struct rate_control_ref *rate_ctrl;
464 /* Supported and basic rate filters for different modes. These are
465 * pointers to -1 terminated lists and rates in 100 kbps units. */
466 int *supp_rates[NUM_IEEE80211_MODES];
467 int *basic_rates[NUM_IEEE80211_MODES];
470 int fragmentation_threshold;
471 int short_retry_limit; /* dot11ShortRetryLimit */
472 int long_retry_limit; /* dot11LongRetryLimit */
474 struct crypto_blkcipher *wep_tx_tfm;
475 struct crypto_blkcipher *wep_rx_tfm;
478 int bridge_packets; /* bridge packets between associated stations and
479 * deliver multicast frames both back to wireless
480 * media and to the local net stack */
482 ieee80211_rx_handler *rx_pre_handlers;
483 ieee80211_rx_handler *rx_handlers;
484 ieee80211_tx_handler *tx_handlers;
486 struct list_head interfaces;
488 bool sta_sw_scanning;
489 bool sta_hw_scanning;
490 int scan_channel_idx;
491 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
492 unsigned long last_scan_completed;
493 struct delayed_work scan_work;
494 struct net_device *scan_dev;
495 struct ieee80211_channel *oper_channel, *scan_channel;
496 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
497 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
498 size_t scan_ssid_len;
499 struct list_head sta_bss_list;
500 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
501 spinlock_t sta_bss_lock;
504 /* dot11CountersTable */
505 u32 dot11TransmittedFragmentCount;
506 u32 dot11MulticastTransmittedFrameCount;
507 u32 dot11FailedCount;
509 u32 dot11MultipleRetryCount;
510 u32 dot11FrameDuplicateCount;
511 u32 dot11ReceivedFragmentCount;
512 u32 dot11MulticastReceivedFrameCount;
513 u32 dot11TransmittedFrameCount;
514 u32 dot11WEPUndecryptableCount;
516 #ifdef CONFIG_MAC80211_LEDS
517 int tx_led_counter, rx_led_counter;
518 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
519 char tx_led_name[32], rx_led_name[32],
520 assoc_led_name[32], radio_led_name[32];
526 #ifdef CONFIG_MAC80211_DEBUGFS
527 struct work_struct sta_debugfs_add;
530 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
531 /* TX/RX handler statistics */
532 unsigned int tx_handlers_drop;
533 unsigned int tx_handlers_queued;
534 unsigned int tx_handlers_drop_unencrypted;
535 unsigned int tx_handlers_drop_fragment;
536 unsigned int tx_handlers_drop_wep;
537 unsigned int tx_handlers_drop_not_assoc;
538 unsigned int tx_handlers_drop_unauth_port;
539 unsigned int rx_handlers_drop;
540 unsigned int rx_handlers_queued;
541 unsigned int rx_handlers_drop_nullfunc;
542 unsigned int rx_handlers_drop_defrag;
543 unsigned int rx_handlers_drop_short;
544 unsigned int rx_handlers_drop_passive_scan;
545 unsigned int tx_expand_skb_head;
546 unsigned int tx_expand_skb_head_cloned;
547 unsigned int rx_expand_skb_head;
548 unsigned int rx_expand_skb_head2;
549 unsigned int rx_handlers_fragments;
550 unsigned int tx_status_drop;
551 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
552 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
553 #define I802_DEBUG_INC(c) (c)++
554 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
555 #define I802_DEBUG_INC(c) do { } while (0)
556 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
559 int total_ps_buffered; /* total number of all buffered unicast and
560 * multicast packets for power saving stations
562 int wifi_wme_noack_test;
563 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
565 unsigned int enabled_modes; /* bitfield of allowed modes;
567 unsigned int hw_modes; /* bitfield of supported hardware modes;
570 #ifdef CONFIG_MAC80211_DEBUGFS
571 struct local_debugfsdentries {
572 struct dentry *channel;
573 struct dentry *frequency;
574 struct dentry *antenna_sel_tx;
575 struct dentry *antenna_sel_rx;
576 struct dentry *bridge_packets;
577 struct dentry *rts_threshold;
578 struct dentry *fragmentation_threshold;
579 struct dentry *short_retry_limit;
580 struct dentry *long_retry_limit;
581 struct dentry *total_ps_buffered;
583 struct dentry *wep_iv;
584 struct dentry *modes;
585 struct dentry *statistics;
586 struct local_debugfsdentries_statsdentries {
587 struct dentry *transmitted_fragment_count;
588 struct dentry *multicast_transmitted_frame_count;
589 struct dentry *failed_count;
590 struct dentry *retry_count;
591 struct dentry *multiple_retry_count;
592 struct dentry *frame_duplicate_count;
593 struct dentry *received_fragment_count;
594 struct dentry *multicast_received_frame_count;
595 struct dentry *transmitted_frame_count;
596 struct dentry *wep_undecryptable_count;
597 struct dentry *num_scans;
598 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
599 struct dentry *tx_handlers_drop;
600 struct dentry *tx_handlers_queued;
601 struct dentry *tx_handlers_drop_unencrypted;
602 struct dentry *tx_handlers_drop_fragment;
603 struct dentry *tx_handlers_drop_wep;
604 struct dentry *tx_handlers_drop_not_assoc;
605 struct dentry *tx_handlers_drop_unauth_port;
606 struct dentry *rx_handlers_drop;
607 struct dentry *rx_handlers_queued;
608 struct dentry *rx_handlers_drop_nullfunc;
609 struct dentry *rx_handlers_drop_defrag;
610 struct dentry *rx_handlers_drop_short;
611 struct dentry *rx_handlers_drop_passive_scan;
612 struct dentry *tx_expand_skb_head;
613 struct dentry *tx_expand_skb_head_cloned;
614 struct dentry *rx_expand_skb_head;
615 struct dentry *rx_expand_skb_head2;
616 struct dentry *rx_handlers_fragments;
617 struct dentry *tx_status_drop;
618 struct dentry *wme_tx_queue;
619 struct dentry *wme_rx_queue;
621 struct dentry *dot11ACKFailureCount;
622 struct dentry *dot11RTSFailureCount;
623 struct dentry *dot11FCSErrorCount;
624 struct dentry *dot11RTSSuccessCount;
626 struct dentry *stations;
632 /* this struct represents 802.11n's RA/TID combination */
633 struct ieee80211_ra_tid {
638 static inline struct ieee80211_local *hw_to_local(
639 struct ieee80211_hw *hw)
641 return container_of(hw, struct ieee80211_local, hw);
644 static inline struct ieee80211_hw *local_to_hw(
645 struct ieee80211_local *local)
650 enum ieee80211_link_state_t {
651 IEEE80211_LINK_STATE_XOFF = 0,
652 IEEE80211_LINK_STATE_PENDING,
655 struct sta_attribute {
656 struct attribute attr;
657 ssize_t (*show)(const struct sta_info *, char *buf);
658 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
661 static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
664 * This format has been mandated by the IEEE specifications,
665 * so this line may not be changed to use the __set_bit() format.
667 bss->tim[aid / 8] |= (1 << (aid % 8));
670 static inline void bss_tim_set(struct ieee80211_local *local,
671 struct ieee80211_if_ap *bss, u16 aid)
673 read_lock_bh(&local->sta_lock);
674 __bss_tim_set(bss, aid);
675 read_unlock_bh(&local->sta_lock);
678 static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
681 * This format has been mandated by the IEEE specifications,
682 * so this line may not be changed to use the __clear_bit() format.
684 bss->tim[aid / 8] &= ~(1 << (aid % 8));
687 static inline void bss_tim_clear(struct ieee80211_local *local,
688 struct ieee80211_if_ap *bss, u16 aid)
690 read_lock_bh(&local->sta_lock);
691 __bss_tim_clear(bss, aid);
692 read_unlock_bh(&local->sta_lock);
696 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
697 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
698 * @rate: Transmission rate to check, in 100 kbps
700 * Check if a given rate is an Extended Rate PHY (ERP) rate.
702 static inline int ieee80211_is_erp_rate(int phymode, int rate)
704 if (phymode == MODE_IEEE80211G) {
705 if (rate != 10 && rate != 20 &&
706 rate != 55 && rate != 110)
712 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
714 return compare_ether_addr(raddr, addr) == 0 ||
715 is_broadcast_ether_addr(raddr);
720 int ieee80211_hw_config(struct ieee80211_local *local);
721 int ieee80211_if_config(struct net_device *dev);
722 int ieee80211_if_config_beacon(struct net_device *dev);
723 void ieee80211_prepare_rates(struct ieee80211_local *local,
724 struct ieee80211_hw_mode *mode);
725 void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
726 int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
727 void ieee80211_if_setup(struct net_device *dev);
728 struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
729 int phymode, int hwrate);
730 int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
731 struct ieee80211_ht_info *req_ht_cap,
732 struct ieee80211_ht_bss_info *req_bss_cap);
734 /* ieee80211_ioctl.c */
735 extern const struct iw_handler_def ieee80211_iw_handler_def;
738 /* Least common multiple of the used rates (in 100 kbps). This is used to
739 * calculate rate_inv values for each rate so that only integers are needed. */
740 #define CHAN_UTIL_RATE_LCM 95040
741 /* 1 usec is 1/8 * (95040/10) = 1188 */
742 #define CHAN_UTIL_PER_USEC 1188
743 /* Amount of bits to shift the result right to scale the total utilization
744 * to values that will not wrap around 32-bit integers. */
745 #define CHAN_UTIL_SHIFT 9
746 /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
747 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
748 * raw value with about 23 should give utilization in 10th of a percentage
749 * (1/1000). However, utilization is only estimated and not all intervals
750 * between frames etc. are calculated. 18 seems to give numbers that are closer
751 * to the real maximum. */
752 #define CHAN_UTIL_PER_10MS 18
753 #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
754 #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
757 /* ieee80211_ioctl.c */
758 int ieee80211_set_compression(struct ieee80211_local *local,
759 struct net_device *dev, struct sta_info *sta);
760 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
761 /* ieee80211_sta.c */
762 void ieee80211_sta_timer(unsigned long data);
763 void ieee80211_sta_work(struct work_struct *work);
764 void ieee80211_sta_scan_work(struct work_struct *work);
765 void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
766 struct ieee80211_rx_status *rx_status);
767 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
768 int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
769 int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
770 int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
771 void ieee80211_sta_req_auth(struct net_device *dev,
772 struct ieee80211_if_sta *ifsta);
773 int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
774 ieee80211_txrx_result ieee80211_sta_rx_scan(struct net_device *dev,
776 struct ieee80211_rx_status *rx_status);
777 void ieee80211_rx_bss_list_init(struct net_device *dev);
778 void ieee80211_rx_bss_list_deinit(struct net_device *dev);
779 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
780 struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
781 struct sk_buff *skb, u8 *bssid,
783 int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
784 int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
785 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
787 void ieee80211_reset_erp_info(struct net_device *dev);
788 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
789 struct ieee80211_ht_info *ht_info);
790 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
791 struct ieee80211_ht_addt_info *ht_add_info_ie,
792 struct ieee80211_ht_bss_info *bss_info);
793 void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
794 u16 tid, u8 dialog_token, u16 start_seq_num,
795 u16 agg_size, u16 timeout);
796 void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
797 u16 initiator, u16 reason_code);
798 void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
799 u16 tid, u16 initiator, u16 reason);
800 void sta_rx_agg_session_timer_expired(unsigned long data);
801 void sta_addba_resp_timer_expired(unsigned long data);
802 /* ieee80211_iface.c */
803 int ieee80211_if_add(struct net_device *dev, const char *name,
804 struct net_device **new_dev, int type);
805 void ieee80211_if_set_type(struct net_device *dev, int type);
806 void ieee80211_if_reinit(struct net_device *dev);
807 void __ieee80211_if_del(struct ieee80211_local *local,
808 struct ieee80211_sub_if_data *sdata);
809 int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
810 void ieee80211_if_free(struct net_device *dev);
811 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
814 void ieee80211_regdomain_init(void);
815 void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
818 extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
819 extern ieee80211_rx_handler ieee80211_rx_handlers[];
822 extern ieee80211_tx_handler ieee80211_tx_handlers[];
823 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
824 void ieee80211_tx_pending(unsigned long data);
825 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
826 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
827 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
829 /* utility functions/constants */
830 extern void *mac80211_wiphy_privid; /* for wiphy privid */
831 extern const unsigned char rfc1042_header[6];
832 extern const unsigned char bridge_tunnel_header[6];
833 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
834 enum ieee80211_if_types type);
835 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
836 int rate, int erp, int short_preamble);
837 void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
838 struct ieee80211_hdr *hdr);
840 #endif /* IEEE80211_I_H */