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);
932 void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
933 u16 tid, u16 initiator, u16 reason);
934 void sta_rx_agg_session_timer_expired(unsigned long data);
935 void sta_addba_resp_timer_expired(unsigned long data);
936 void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr);
937 u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
938 struct ieee802_11_elems *elems,
939 enum ieee80211_band band);
940 void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
942 void ieee802_11_parse_elems(u8 *start, size_t len,
943 struct ieee802_11_elems *elems);
945 #ifdef CONFIG_MAC80211_MESH
946 void ieee80211_start_mesh(struct net_device *dev);
948 static inline void ieee80211_start_mesh(struct net_device *dev)
952 /* ieee80211_iface.c */
953 int ieee80211_if_add(struct net_device *dev, const char *name,
954 struct net_device **new_dev, int type,
955 struct vif_params *params);
956 void ieee80211_if_set_type(struct net_device *dev, int type);
957 void ieee80211_if_reinit(struct net_device *dev);
958 void __ieee80211_if_del(struct ieee80211_local *local,
959 struct ieee80211_sub_if_data *sdata);
960 int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
961 void ieee80211_if_free(struct net_device *dev);
962 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
965 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
966 void ieee80211_tx_pending(unsigned long data);
967 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
968 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
969 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
971 /* utility functions/constants */
972 extern void *mac80211_wiphy_privid; /* for wiphy privid */
973 extern const unsigned char rfc1042_header[6];
974 extern const unsigned char bridge_tunnel_header[6];
975 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
976 enum ieee80211_if_types type);
977 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
978 int rate, int erp, int short_preamble);
979 void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
980 struct ieee80211_hdr *hdr);
982 #endif /* IEEE80211_I_H */