2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/device.h>
17 #include <linux/if_ether.h>
18 #include <linux/interrupt.h>
19 #include <linux/list.h>
20 #include <linux/netdevice.h>
21 #include <linux/skbuff.h>
22 #include <linux/workqueue.h>
23 #include <linux/types.h>
24 #include <linux/spinlock.h>
25 #include <linux/etherdevice.h>
26 #include <net/cfg80211.h>
27 #include <net/iw_handler.h>
28 #include <net/mac80211.h>
32 struct ieee80211_local;
34 /* Maximum number of broadcast/multicast frames to buffer when some of the
35 * associated stations are using power saving. */
36 #define AP_MAX_BC_BUFFER 128
38 /* Maximum number of frames buffered to all STAs, including multicast frames.
39 * Note: increasing this limit increases the potential memory requirement. Each
40 * frame can be up to about 2 kB long. */
41 #define TOTAL_MAX_TX_BUFFER 512
43 /* Required encryption head and tailroom */
44 #define IEEE80211_ENCRYPT_HEADROOM 8
45 #define IEEE80211_ENCRYPT_TAILROOM 18
47 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
48 * reception of at least three fragmented frames. This limit can be increased
49 * by changing this define, at the cost of slower frame reassembly and
50 * increased memory use (about 2 kB of RAM per entry). */
51 #define IEEE80211_FRAGMENT_MAX 4
54 * Time after which we ignore scan results and no longer report/use
57 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
59 #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
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_bss {
74 /* Yes, this is a hack */
75 struct cfg80211_bss cbss;
77 /* don't want to look up all the time */
79 u8 ssid[IEEE80211_MAX_SSID_LEN];
85 unsigned long last_probe_resp;
87 #ifdef CONFIG_MAC80211_MESH
93 #define IEEE80211_MAX_SUPP_RATES 32
94 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
95 size_t supp_rates_len;
98 * During assocation, we save an ERP value from a probe response so
99 * that we can feed ERP info to the driver when handling the
100 * association completes. these fields probably won't be up-to-date
101 * otherwise, you probably don't want to use them.
107 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
109 #ifdef CONFIG_MAC80211_MESH
110 return bss->mesh_cfg;
115 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
117 #ifdef CONFIG_MAC80211_MESH
123 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
125 #ifdef CONFIG_MAC80211_MESH
126 return bss->mesh_id_len;
132 typedef unsigned __bitwise__ ieee80211_tx_result;
133 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
134 #define TX_DROP ((__force ieee80211_tx_result) 1u)
135 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
137 #define IEEE80211_TX_FRAGMENTED BIT(0)
138 #define IEEE80211_TX_UNICAST BIT(1)
139 #define IEEE80211_TX_PS_BUFFERED BIT(2)
141 struct ieee80211_tx_data {
143 struct net_device *dev;
144 struct ieee80211_local *local;
145 struct ieee80211_sub_if_data *sdata;
146 struct sta_info *sta;
147 struct ieee80211_key *key;
149 struct ieee80211_channel *channel;
156 typedef unsigned __bitwise__ ieee80211_rx_result;
157 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
158 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
159 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
160 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
162 #define IEEE80211_RX_IN_SCAN BIT(0)
163 /* frame is destined to interface currently processed (incl. multicast frames) */
164 #define IEEE80211_RX_RA_MATCH BIT(1)
165 #define IEEE80211_RX_AMSDU BIT(2)
166 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
167 #define IEEE80211_RX_FRAGMENTED BIT(4)
169 struct ieee80211_rx_data {
171 struct net_device *dev;
172 struct ieee80211_local *local;
173 struct ieee80211_sub_if_data *sdata;
174 struct sta_info *sta;
175 struct ieee80211_key *key;
176 struct ieee80211_rx_status *status;
177 struct ieee80211_rate *rate;
180 int sent_ps_buffered;
188 int head_len, tail_len;
192 struct ieee80211_if_ap {
193 struct beacon_data *beacon;
195 struct list_head vlans;
197 /* yes, this looks ugly, but guarantees that we can later use
199 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
200 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
201 struct sk_buff_head ps_bc_buf;
202 atomic_t num_sta_ps; /* number of stations in PS mode */
206 struct ieee80211_if_wds {
207 struct sta_info *sta;
208 u8 remote_addr[ETH_ALEN];
211 struct ieee80211_if_vlan {
212 struct list_head list;
216 __u32 fwded_frames; /* Mesh forwarded frames */
217 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
218 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
219 atomic_t estab_plinks;
222 #define PREQ_Q_F_START 0x1
223 #define PREQ_Q_F_REFRESH 0x2
224 struct mesh_preq_queue {
225 struct list_head list;
230 enum ieee80211_mgd_state {
231 IEEE80211_MGD_STATE_IDLE,
232 IEEE80211_MGD_STATE_PROBE,
233 IEEE80211_MGD_STATE_AUTH,
234 IEEE80211_MGD_STATE_ASSOC,
237 struct ieee80211_mgd_work {
238 struct list_head list;
239 struct ieee80211_bss *bss;
241 u8 prev_bssid[ETH_ALEN];
242 u8 ssid[IEEE80211_MAX_SSID_LEN];
244 unsigned long timeout;
245 enum ieee80211_mgd_state state;
246 u16 auth_alg, auth_transaction;
250 u8 key[WLAN_KEY_LEN_WEP104];
254 u8 ie[0]; /* for auth or assoc frame, not probe */
257 /* flags used in struct ieee80211_if_managed.flags */
258 enum ieee80211_sta_flags {
259 IEEE80211_STA_PROBEREQ_POLL = BIT(3),
260 IEEE80211_STA_CONTROL_PORT = BIT(4),
261 IEEE80211_STA_WMM_ENABLED = BIT(5),
262 IEEE80211_STA_DISABLE_11N = BIT(6),
263 IEEE80211_STA_CSA_RECEIVED = BIT(7),
264 IEEE80211_STA_MFP_ENABLED = BIT(8),
267 /* flags for MLME request */
268 enum ieee80211_sta_request {
269 IEEE80211_STA_REQ_SCAN,
272 struct ieee80211_if_managed {
273 struct timer_list timer;
274 struct timer_list chswitch_timer;
275 struct work_struct work;
276 struct work_struct chswitch_work;
277 struct work_struct beacon_loss_work;
280 struct ieee80211_bss *associated;
281 struct list_head work_list;
288 struct sk_buff_head skb_queue;
290 unsigned long timers_running; /* used for quiesce/restart */
291 bool powersave; /* powersave requested for this iface */
293 unsigned long request;
295 unsigned long last_beacon;
302 IEEE80211_MFP_DISABLED,
303 IEEE80211_MFP_OPTIONAL,
304 IEEE80211_MFP_REQUIRED
305 } mfp; /* management frame protection */
307 int wmm_last_param_set;
310 enum ieee80211_ibss_request {
311 IEEE80211_IBSS_REQ_RUN = 0,
314 struct ieee80211_if_ibss {
315 struct timer_list timer;
316 struct work_struct work;
318 struct sk_buff_head skb_queue;
320 unsigned long request;
321 unsigned long last_scan_completed;
330 u8 ssid[IEEE80211_MAX_SSID_LEN];
333 struct ieee80211_channel *channel;
335 unsigned long ibss_join_req;
336 /* probe response/beacon for IBSS */
337 struct sk_buff *presp, *skb;
340 IEEE80211_IBSS_MLME_SEARCH,
341 IEEE80211_IBSS_MLME_JOINED,
345 struct ieee80211_if_mesh {
346 struct work_struct work;
347 struct timer_list housekeeping_timer;
348 struct timer_list mesh_path_timer;
349 struct sk_buff_head skb_queue;
351 unsigned long timers_running;
355 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
357 /* Active Path Selection Protocol Identifier */
359 /* Active Path Selection Metric Identifier */
361 /* Congestion Control Mode Identifier */
363 /* Local mesh Destination Sequence Number */
365 /* Last used PREQ ID */
368 /* Timestamp of last DSN update */
369 unsigned long last_dsn_update;
370 /* Timestamp of last DSN sent */
371 unsigned long last_preq;
372 struct mesh_rmc *rmc;
373 spinlock_t mesh_preq_queue_lock;
374 struct mesh_preq_queue preq_queue;
376 struct mesh_stats mshstats;
377 struct mesh_config mshcfg;
379 bool accepting_plinks;
382 #ifdef CONFIG_MAC80211_MESH
383 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
384 do { (msh)->mshstats.name++; } while (0)
386 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
391 * enum ieee80211_sub_if_data_flags - virtual interface flags
393 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
394 * @IEEE80211_SDATA_PROMISC: interface is promisc
395 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
396 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
397 * associated stations and deliver multicast frames both
398 * back to wireless media and to the local net stack.
400 enum ieee80211_sub_if_data_flags {
401 IEEE80211_SDATA_ALLMULTI = BIT(0),
402 IEEE80211_SDATA_PROMISC = BIT(1),
403 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
404 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
407 struct ieee80211_sub_if_data {
408 struct list_head list;
410 struct wireless_dev wdev;
413 struct list_head key_list;
415 struct net_device *dev;
416 struct ieee80211_local *local;
420 int drop_unencrypted;
423 * keep track of whether the HT opmode (stored in
424 * vif.bss_info.ht_operation_mode) is valid.
426 bool ht_opmode_valid;
428 /* Fragment table for host-based reassembly */
429 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
430 unsigned int fragment_next;
432 #define NUM_DEFAULT_KEYS 4
433 #define NUM_DEFAULT_MGMT_KEYS 2
434 struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
435 struct ieee80211_key *default_key;
436 struct ieee80211_key *default_mgmt_key;
441 * AP this belongs to: self in AP mode and
442 * corresponding AP in VLAN mode, NULL for
443 * all others (might be needed later in IBSS)
445 struct ieee80211_if_ap *bss;
447 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
448 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
451 struct ieee80211_if_ap ap;
452 struct ieee80211_if_wds wds;
453 struct ieee80211_if_vlan vlan;
454 struct ieee80211_if_managed mgd;
455 struct ieee80211_if_ibss ibss;
456 #ifdef CONFIG_MAC80211_MESH
457 struct ieee80211_if_mesh mesh;
462 #ifdef CONFIG_MAC80211_DEBUGFS
463 struct dentry *debugfsdir;
466 struct dentry *drop_unencrypted;
467 struct dentry *bssid;
469 struct dentry *capab;
470 struct dentry *force_unicast_rateidx;
471 struct dentry *max_ratectrl_rateidx;
474 struct dentry *drop_unencrypted;
475 struct dentry *num_sta_ps;
476 struct dentry *dtim_count;
477 struct dentry *force_unicast_rateidx;
478 struct dentry *max_ratectrl_rateidx;
479 struct dentry *num_buffered_multicast;
482 struct dentry *drop_unencrypted;
484 struct dentry *force_unicast_rateidx;
485 struct dentry *max_ratectrl_rateidx;
488 struct dentry *drop_unencrypted;
489 struct dentry *force_unicast_rateidx;
490 struct dentry *max_ratectrl_rateidx;
497 struct dentry *default_key;
498 struct dentry *default_mgmt_key;
501 #ifdef CONFIG_MAC80211_MESH
502 struct dentry *mesh_stats_dir;
504 struct dentry *fwded_frames;
505 struct dentry *dropped_frames_ttl;
506 struct dentry *dropped_frames_no_route;
507 struct dentry *estab_plinks;
508 struct timer_list mesh_path_timer;
511 struct dentry *mesh_config_dir;
513 struct dentry *dot11MeshRetryTimeout;
514 struct dentry *dot11MeshConfirmTimeout;
515 struct dentry *dot11MeshHoldingTimeout;
516 struct dentry *dot11MeshMaxRetries;
517 struct dentry *dot11MeshTTL;
518 struct dentry *auto_open_plinks;
519 struct dentry *dot11MeshMaxPeerLinks;
520 struct dentry *dot11MeshHWMPactivePathTimeout;
521 struct dentry *dot11MeshHWMPpreqMinInterval;
522 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
523 struct dentry *dot11MeshHWMPmaxPREQretries;
524 struct dentry *path_refresh_time;
525 struct dentry *min_discovery_timeout;
530 /* must be last, dynamically sized area in this! */
531 struct ieee80211_vif vif;
535 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
537 return container_of(p, struct ieee80211_sub_if_data, vif);
541 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
542 u8 mesh_id_len, u8 *mesh_id)
544 #ifdef CONFIG_MAC80211_MESH
545 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
546 ifmsh->mesh_id_len = mesh_id_len;
547 memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
554 IEEE80211_RX_MSG = 1,
555 IEEE80211_TX_STATUS_MSG = 2,
556 IEEE80211_DELBA_MSG = 3,
557 IEEE80211_ADDBA_MSG = 4,
560 enum queue_stop_reason {
561 IEEE80211_QUEUE_STOP_REASON_DRIVER,
562 IEEE80211_QUEUE_STOP_REASON_PS,
563 IEEE80211_QUEUE_STOP_REASON_CSA,
564 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
565 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
566 IEEE80211_QUEUE_STOP_REASON_PENDING,
567 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
570 struct ieee80211_master_priv {
571 struct ieee80211_local *local;
574 struct ieee80211_local {
575 /* embed the driver visible part.
576 * don't cast (use the static inlines below), but we keep
577 * it first anyway so they become a no-op */
578 struct ieee80211_hw hw;
580 const struct ieee80211_ops *ops;
582 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
583 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
584 spinlock_t queue_stop_reason_lock;
586 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
588 int monitors, cooked_mntrs;
589 /* number of interfaces with corresponding FIF_ flags */
590 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
591 unsigned int filter_flags; /* FIF_* */
592 struct iw_statistics wstats;
593 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
596 * suspended is true if we finished all the suspend _and_ we have
597 * not yet come up from resume. This is to be used by mac80211
598 * to ensure driver sanity during suspend and mac80211's own
599 * sanity. It can eventually be used for WoW as well.
604 * quiescing is true during the suspend process _only_ to
605 * ease timer cancelling etc.
609 int tx_headroom; /* required headroom for hardware/radiotap */
611 /* Tasklet and skb queue to process calls from IRQ mode. All frames
612 * added to skb_queue will be processed, but frames in
613 * skb_queue_unreliable may be dropped if the total length of these
614 * queues increases over the limit. */
615 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
616 struct tasklet_struct tasklet;
617 struct sk_buff_head skb_queue;
618 struct sk_buff_head skb_queue_unreliable;
622 * The lock only protects the list, hash, timer and counter
623 * against manipulation, reads are done in RCU. Additionally,
624 * the lock protects each BSS's TIM bitmap.
627 unsigned long num_sta;
628 struct list_head sta_list;
629 struct sta_info *sta_hash[STA_HASH_SIZE];
630 struct timer_list sta_cleanup;
632 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
633 struct tasklet_struct tx_pending_tasklet;
636 * This lock is used to prevent concurrent A-MPDU
637 * session start/stop processing, this thus also
638 * synchronises the ->ampdu_action() callback to
639 * drivers and limits it to one at a time.
641 spinlock_t ampdu_lock;
643 /* number of interfaces with corresponding IFF_ flags */
644 atomic_t iff_allmultis, iff_promiscs;
646 struct rate_control_ref *rate_ctrl;
648 struct crypto_blkcipher *wep_tx_tfm;
649 struct crypto_blkcipher *wep_rx_tfm;
653 struct list_head interfaces;
654 struct mutex iflist_mtx;
657 * Key lock, protects sdata's key_list and sta_info's
658 * key pointers (write access, they're RCU.)
663 /* Scanning and BSS list */
664 struct mutex scan_mtx;
665 bool sw_scanning, hw_scanning;
666 struct cfg80211_ssid scan_ssid;
667 struct cfg80211_scan_request int_scan_req;
668 struct cfg80211_scan_request *scan_req;
669 struct ieee80211_channel *scan_channel;
672 int scan_channel_idx;
675 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
676 struct delayed_work scan_work;
677 struct ieee80211_sub_if_data *scan_sdata;
678 enum nl80211_channel_type oper_channel_type;
679 struct ieee80211_channel *oper_channel, *csa_channel;
682 /* dot11CountersTable */
683 u32 dot11TransmittedFragmentCount;
684 u32 dot11MulticastTransmittedFrameCount;
685 u32 dot11FailedCount;
687 u32 dot11MultipleRetryCount;
688 u32 dot11FrameDuplicateCount;
689 u32 dot11ReceivedFragmentCount;
690 u32 dot11MulticastReceivedFrameCount;
691 u32 dot11TransmittedFrameCount;
693 #ifdef CONFIG_MAC80211_LEDS
694 int tx_led_counter, rx_led_counter;
695 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
696 char tx_led_name[32], rx_led_name[32],
697 assoc_led_name[32], radio_led_name[32];
700 #ifdef CONFIG_MAC80211_DEBUGFS
701 struct work_struct sta_debugfs_add;
704 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
705 /* TX/RX handler statistics */
706 unsigned int tx_handlers_drop;
707 unsigned int tx_handlers_queued;
708 unsigned int tx_handlers_drop_unencrypted;
709 unsigned int tx_handlers_drop_fragment;
710 unsigned int tx_handlers_drop_wep;
711 unsigned int tx_handlers_drop_not_assoc;
712 unsigned int tx_handlers_drop_unauth_port;
713 unsigned int rx_handlers_drop;
714 unsigned int rx_handlers_queued;
715 unsigned int rx_handlers_drop_nullfunc;
716 unsigned int rx_handlers_drop_defrag;
717 unsigned int rx_handlers_drop_short;
718 unsigned int rx_handlers_drop_passive_scan;
719 unsigned int tx_expand_skb_head;
720 unsigned int tx_expand_skb_head_cloned;
721 unsigned int rx_expand_skb_head;
722 unsigned int rx_expand_skb_head2;
723 unsigned int rx_handlers_fragments;
724 unsigned int tx_status_drop;
725 #define I802_DEBUG_INC(c) (c)++
726 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
727 #define I802_DEBUG_INC(c) do { } while (0)
728 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
731 int total_ps_buffered; /* total number of all buffered unicast and
732 * multicast packets for power saving stations
734 int wifi_wme_noack_test;
735 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
739 * PS can only be enabled when we have exactly one managed
740 * interface (and monitors) in PS, this then points there.
742 struct ieee80211_sub_if_data *ps_sdata;
743 struct work_struct dynamic_ps_enable_work;
744 struct work_struct dynamic_ps_disable_work;
745 struct timer_list dynamic_ps_timer;
746 struct notifier_block network_latency_notifier;
748 int user_power_level; /* in dBm */
749 int power_constr_level; /* in dBm */
751 struct work_struct restart_work;
753 #ifdef CONFIG_MAC80211_DEBUGFS
754 struct local_debugfsdentries {
755 struct dentry *rcdir;
756 struct dentry *rcname;
757 struct dentry *frequency;
758 struct dentry *total_ps_buffered;
759 struct dentry *wep_iv;
761 struct dentry *queues;
762 struct dentry *reset;
763 struct dentry *noack;
764 struct dentry *statistics;
765 struct local_debugfsdentries_statsdentries {
766 struct dentry *transmitted_fragment_count;
767 struct dentry *multicast_transmitted_frame_count;
768 struct dentry *failed_count;
769 struct dentry *retry_count;
770 struct dentry *multiple_retry_count;
771 struct dentry *frame_duplicate_count;
772 struct dentry *received_fragment_count;
773 struct dentry *multicast_received_frame_count;
774 struct dentry *transmitted_frame_count;
775 struct dentry *wep_undecryptable_count;
776 struct dentry *num_scans;
777 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
778 struct dentry *tx_handlers_drop;
779 struct dentry *tx_handlers_queued;
780 struct dentry *tx_handlers_drop_unencrypted;
781 struct dentry *tx_handlers_drop_fragment;
782 struct dentry *tx_handlers_drop_wep;
783 struct dentry *tx_handlers_drop_not_assoc;
784 struct dentry *tx_handlers_drop_unauth_port;
785 struct dentry *rx_handlers_drop;
786 struct dentry *rx_handlers_queued;
787 struct dentry *rx_handlers_drop_nullfunc;
788 struct dentry *rx_handlers_drop_defrag;
789 struct dentry *rx_handlers_drop_short;
790 struct dentry *rx_handlers_drop_passive_scan;
791 struct dentry *tx_expand_skb_head;
792 struct dentry *tx_expand_skb_head_cloned;
793 struct dentry *rx_expand_skb_head;
794 struct dentry *rx_expand_skb_head2;
795 struct dentry *rx_handlers_fragments;
796 struct dentry *tx_status_drop;
798 struct dentry *dot11ACKFailureCount;
799 struct dentry *dot11RTSFailureCount;
800 struct dentry *dot11FCSErrorCount;
801 struct dentry *dot11RTSSuccessCount;
803 struct dentry *stations;
809 static inline struct ieee80211_sub_if_data *
810 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
812 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
814 BUG_ON(!local || local->mdev == dev);
816 return netdev_priv(dev);
819 /* this struct represents 802.11n's RA/TID combination */
820 struct ieee80211_ra_tid {
825 /* Parsed Information Elements */
826 struct ieee802_11_elems {
830 /* pointers to IEs */
836 struct ieee80211_tim_ie *tim;
845 struct ieee80211_ht_cap *ht_cap_elem;
846 struct ieee80211_ht_info *ht_info_elem;
856 u8 *quiet_elem; /* first quite element */
859 /* length of them, respectively */
871 u8 ext_supp_rates_len;
880 u8 ch_switch_elem_len;
882 u8 pwr_constr_elem_len;
884 u8 num_of_quiet_elem; /* can be more the one */
888 static inline struct ieee80211_local *hw_to_local(
889 struct ieee80211_hw *hw)
891 return container_of(hw, struct ieee80211_local, hw);
894 static inline struct ieee80211_hw *local_to_hw(
895 struct ieee80211_local *local)
901 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
903 return compare_ether_addr(raddr, addr) == 0 ||
904 is_broadcast_ether_addr(raddr);
908 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
909 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
910 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
912 void ieee80211_configure_filter(struct ieee80211_local *local);
913 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
915 /* wireless extensions */
916 extern const struct iw_handler_def ieee80211_iw_handler_def;
919 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
920 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
921 struct cfg80211_auth_request *req);
922 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
923 struct cfg80211_assoc_request *req);
924 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
925 struct cfg80211_deauth_request *req,
927 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
928 struct cfg80211_disassoc_request *req,
930 ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
931 struct sk_buff *skb);
932 void ieee80211_send_pspoll(struct ieee80211_local *local,
933 struct ieee80211_sub_if_data *sdata);
934 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
935 int ieee80211_max_network_latency(struct notifier_block *nb,
936 unsigned long data, void *dummy);
937 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
938 struct ieee80211_channel_sw_ie *sw_elem,
939 struct ieee80211_bss *bss);
940 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
941 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
944 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
945 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
947 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
948 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
949 u8 *bssid, u8 *addr, u32 supp_rates);
950 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
951 struct cfg80211_ibss_params *params);
952 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
953 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
954 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
956 /* scan/BSS handling */
957 void ieee80211_scan_work(struct work_struct *work);
958 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
959 const u8 *ssid, u8 ssid_len);
960 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
961 struct cfg80211_scan_request *req);
962 void ieee80211_scan_cancel(struct ieee80211_local *local);
964 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
966 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
967 struct ieee80211_bss *
968 ieee80211_bss_info_update(struct ieee80211_local *local,
969 struct ieee80211_rx_status *rx_status,
970 struct ieee80211_mgmt *mgmt,
972 struct ieee802_11_elems *elems,
973 struct ieee80211_channel *channel,
975 struct ieee80211_bss *
976 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
977 u8 *ssid, u8 ssid_len);
978 void ieee80211_rx_bss_put(struct ieee80211_local *local,
979 struct ieee80211_bss *bss);
981 /* interface handling */
982 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
983 struct net_device **new_dev, enum nl80211_iftype type,
984 struct vif_params *params);
985 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
986 enum nl80211_iftype type);
987 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
988 void ieee80211_remove_interfaces(struct ieee80211_local *local);
989 u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
990 void ieee80211_recalc_idle(struct ieee80211_local *local);
993 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
994 void ieee80211_tx_pending(unsigned long data);
995 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
996 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
997 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
1000 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
1001 struct ieee80211_ht_cap *ht_cap_ie,
1002 struct ieee80211_sta_ht_cap *ht_cap);
1003 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
1004 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1005 const u8 *da, u16 tid,
1006 u16 initiator, u16 reason_code);
1008 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
1009 u16 tid, u16 initiator, u16 reason);
1010 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1011 u16 initiator, u16 reason);
1012 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
1013 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1014 struct sta_info *sta,
1015 struct ieee80211_mgmt *mgmt, size_t len);
1016 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1017 struct sta_info *sta,
1018 struct ieee80211_mgmt *mgmt,
1020 void ieee80211_process_addba_request(struct ieee80211_local *local,
1021 struct sta_info *sta,
1022 struct ieee80211_mgmt *mgmt,
1025 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1026 enum ieee80211_back_parties initiator);
1028 /* Spectrum management */
1029 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1030 struct ieee80211_mgmt *mgmt,
1033 /* Suspend/resume and hw reconfiguration */
1034 int ieee80211_reconfig(struct ieee80211_local *local);
1037 int __ieee80211_suspend(struct ieee80211_hw *hw);
1039 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1041 return ieee80211_reconfig(hw_to_local(hw));
1044 static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
1049 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1055 /* utility functions/constants */
1056 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1057 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1058 enum nl80211_iftype type);
1059 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1060 int rate, int erp, int short_preamble);
1061 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1062 struct ieee80211_hdr *hdr, const u8 *tsc,
1064 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
1065 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1067 void ieee802_11_parse_elems(u8 *start, size_t len,
1068 struct ieee802_11_elems *elems);
1069 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1070 struct ieee802_11_elems *elems,
1071 u64 filter, u32 crc);
1072 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1073 enum ieee80211_band band);
1075 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1076 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1077 void ieee80211_dynamic_ps_timer(unsigned long data);
1078 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1079 struct ieee80211_sub_if_data *sdata,
1081 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1082 struct ieee80211_hdr *hdr);
1083 void ieee80211_beacon_loss_work(struct work_struct *work);
1085 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1086 enum queue_stop_reason reason);
1087 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1088 enum queue_stop_reason reason);
1089 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1090 enum queue_stop_reason reason);
1091 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1092 enum queue_stop_reason reason);
1093 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1094 struct sk_buff *skb);
1095 int ieee80211_add_pending_skbs(struct ieee80211_local *local,
1096 struct sk_buff_head *skbs);
1098 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1099 u16 transaction, u16 auth_alg,
1100 u8 *extra, size_t extra_len, const u8 *bssid,
1101 const u8 *key, u8 key_len, u8 key_idx);
1102 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1103 const u8 *ie, size_t ie_len);
1104 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1105 const u8 *ssid, size_t ssid_len,
1106 const u8 *ie, size_t ie_len);
1108 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1109 const size_t supp_rates_len,
1110 const u8 *supp_rates);
1111 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1112 struct ieee802_11_elems *elems,
1113 enum ieee80211_band band);
1115 #ifdef CONFIG_MAC80211_NOINLINE
1116 #define debug_noinline noinline
1118 #define debug_noinline
1121 #endif /* IEEE80211_I_H */