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/ieee80211_radiotap.h>
27 #include <net/cfg80211.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 ieee80211_local *local;
144 struct ieee80211_sub_if_data *sdata;
145 struct sta_info *sta;
146 struct ieee80211_key *key;
148 struct ieee80211_channel *channel;
155 typedef unsigned __bitwise__ ieee80211_rx_result;
156 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
157 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
158 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
159 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
161 #define IEEE80211_RX_IN_SCAN BIT(0)
162 /* frame is destined to interface currently processed (incl. multicast frames) */
163 #define IEEE80211_RX_RA_MATCH BIT(1)
164 #define IEEE80211_RX_AMSDU BIT(2)
165 #define IEEE80211_RX_FRAGMENTED BIT(3)
166 /* only add flags here that do not change with subframes of an aMPDU */
168 struct ieee80211_rx_data {
170 struct ieee80211_local *local;
171 struct ieee80211_sub_if_data *sdata;
172 struct sta_info *sta;
173 struct ieee80211_key *key;
183 int head_len, tail_len;
187 struct ieee80211_if_ap {
188 struct beacon_data *beacon;
190 struct list_head vlans;
192 /* yes, this looks ugly, but guarantees that we can later use
194 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
195 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
196 struct sk_buff_head ps_bc_buf;
197 atomic_t num_sta_ps; /* number of stations in PS mode */
201 struct ieee80211_if_wds {
202 struct sta_info *sta;
203 u8 remote_addr[ETH_ALEN];
206 struct ieee80211_if_vlan {
207 struct list_head list;
209 /* used for all tx if the VLAN is configured to 4-addr mode */
210 struct sta_info *sta;
214 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
215 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
216 __u32 fwded_frames; /* Mesh total 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_BEACON_POLL = BIT(0),
260 IEEE80211_STA_CONNECTION_POLL = BIT(1),
261 IEEE80211_STA_CONTROL_PORT = BIT(2),
262 IEEE80211_STA_WMM_ENABLED = BIT(3),
263 IEEE80211_STA_DISABLE_11N = BIT(4),
264 IEEE80211_STA_CSA_RECEIVED = BIT(5),
265 IEEE80211_STA_MFP_ENABLED = BIT(6),
268 /* flags for MLME request */
269 enum ieee80211_sta_request {
270 IEEE80211_STA_REQ_SCAN,
273 struct ieee80211_if_managed {
274 struct timer_list timer;
275 struct timer_list conn_mon_timer;
276 struct timer_list bcn_mon_timer;
277 struct timer_list chswitch_timer;
278 struct work_struct work;
279 struct work_struct monitor_work;
280 struct work_struct chswitch_work;
281 struct work_struct beacon_loss_work;
283 unsigned long probe_timeout;
284 int probe_send_count;
287 struct ieee80211_bss *associated;
288 struct ieee80211_mgd_work *old_associate_work;
289 struct list_head work_list;
296 struct sk_buff_head skb_queue;
298 unsigned long timers_running; /* used for quiesce/restart */
299 bool powersave; /* powersave requested for this iface */
300 enum ieee80211_smps_mode req_smps, /* requested smps mode */
301 ap_smps; /* smps mode AP thinks we're in */
303 unsigned long request;
310 IEEE80211_MFP_DISABLED,
311 IEEE80211_MFP_OPTIONAL,
312 IEEE80211_MFP_REQUIRED
313 } mfp; /* management frame protection */
315 int wmm_last_param_set;
320 enum ieee80211_ibss_request {
321 IEEE80211_IBSS_REQ_RUN = 0,
324 struct ieee80211_if_ibss {
325 struct timer_list timer;
326 struct work_struct work;
328 struct sk_buff_head skb_queue;
330 unsigned long request;
331 unsigned long last_scan_completed;
340 u8 ssid[IEEE80211_MAX_SSID_LEN];
343 struct ieee80211_channel *channel;
345 unsigned long ibss_join_req;
346 /* probe response/beacon for IBSS */
347 struct sk_buff *presp, *skb;
350 IEEE80211_IBSS_MLME_SEARCH,
351 IEEE80211_IBSS_MLME_JOINED,
355 struct ieee80211_if_mesh {
356 struct work_struct work;
357 struct timer_list housekeeping_timer;
358 struct timer_list mesh_path_timer;
359 struct timer_list mesh_path_root_timer;
360 struct sk_buff_head skb_queue;
362 unsigned long timers_running;
364 unsigned long wrkq_flags;
366 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
368 /* Active Path Selection Protocol Identifier */
370 /* Active Path Selection Metric Identifier */
372 /* Congestion Control Mode Identifier */
374 /* Synchronization Protocol Identifier */
376 /* Authentication Protocol Identifier */
378 /* Local mesh Sequence Number */
380 /* Last used PREQ ID */
383 /* Timestamp of last SN update */
384 unsigned long last_sn_update;
385 /* Timestamp of last SN sent */
386 unsigned long last_preq;
387 struct mesh_rmc *rmc;
388 spinlock_t mesh_preq_queue_lock;
389 struct mesh_preq_queue preq_queue;
391 struct mesh_stats mshstats;
392 struct mesh_config mshcfg;
394 bool accepting_plinks;
397 #ifdef CONFIG_MAC80211_MESH
398 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
399 do { (msh)->mshstats.name++; } while (0)
401 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
406 * enum ieee80211_sub_if_data_flags - virtual interface flags
408 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
409 * @IEEE80211_SDATA_PROMISC: interface is promisc
410 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
411 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
412 * associated stations and deliver multicast frames both
413 * back to wireless media and to the local net stack.
415 enum ieee80211_sub_if_data_flags {
416 IEEE80211_SDATA_ALLMULTI = BIT(0),
417 IEEE80211_SDATA_PROMISC = BIT(1),
418 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
419 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
422 struct ieee80211_sub_if_data {
423 struct list_head list;
425 struct wireless_dev wdev;
428 struct list_head key_list;
430 struct net_device *dev;
431 struct ieee80211_local *local;
435 int drop_unencrypted;
440 * keep track of whether the HT opmode (stored in
441 * vif.bss_info.ht_operation_mode) is valid.
443 bool ht_opmode_valid;
445 /* Fragment table for host-based reassembly */
446 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
447 unsigned int fragment_next;
449 #define NUM_DEFAULT_KEYS 4
450 #define NUM_DEFAULT_MGMT_KEYS 2
451 struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
452 struct ieee80211_key *default_key;
453 struct ieee80211_key *default_mgmt_key;
458 * AP this belongs to: self in AP mode and
459 * corresponding AP in VLAN mode, NULL for
460 * all others (might be needed later in IBSS)
462 struct ieee80211_if_ap *bss;
464 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
465 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
468 struct ieee80211_if_ap ap;
469 struct ieee80211_if_wds wds;
470 struct ieee80211_if_vlan vlan;
471 struct ieee80211_if_managed mgd;
472 struct ieee80211_if_ibss ibss;
473 #ifdef CONFIG_MAC80211_MESH
474 struct ieee80211_if_mesh mesh;
479 #ifdef CONFIG_MAC80211_DEBUGFS
482 struct dentry *default_key;
483 struct dentry *default_mgmt_key;
486 /* must be last, dynamically sized area in this! */
487 struct ieee80211_vif vif;
491 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
493 return container_of(p, struct ieee80211_sub_if_data, vif);
497 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
498 u8 mesh_id_len, u8 *mesh_id)
500 #ifdef CONFIG_MAC80211_MESH
501 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
502 ifmsh->mesh_id_len = mesh_id_len;
503 memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
510 IEEE80211_RX_MSG = 1,
511 IEEE80211_TX_STATUS_MSG = 2,
512 IEEE80211_DELBA_MSG = 3,
513 IEEE80211_ADDBA_MSG = 4,
516 enum queue_stop_reason {
517 IEEE80211_QUEUE_STOP_REASON_DRIVER,
518 IEEE80211_QUEUE_STOP_REASON_PS,
519 IEEE80211_QUEUE_STOP_REASON_CSA,
520 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
521 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
522 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
526 * mac80211 scan flags - currently active scan mode
528 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
529 * well be on the operating channel
530 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
531 * determine if we are on the operating channel or not
532 * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning,
533 * gets only set in conjunction with SCAN_SW_SCANNING
542 * enum mac80211_scan_state - scan state machine states
544 * @SCAN_DECISION: Main entry point to the scan state machine, this state
545 * determines if we should keep on scanning or switch back to the
547 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
548 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
549 * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP
550 * about us leaving the channel and stop all associated STA interfaces
551 * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the
552 * AP about us being back and restart all associated STA interfaces
554 enum mac80211_scan_state {
558 SCAN_LEAVE_OPER_CHANNEL,
559 SCAN_ENTER_OPER_CHANNEL,
562 struct ieee80211_local {
563 /* embed the driver visible part.
564 * don't cast (use the static inlines below), but we keep
565 * it first anyway so they become a no-op */
566 struct ieee80211_hw hw;
568 const struct ieee80211_ops *ops;
571 * private workqueue to mac80211. mac80211 makes this accessible
572 * via ieee80211_queue_work()
574 struct workqueue_struct *workqueue;
576 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
577 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
578 spinlock_t queue_stop_reason_lock;
581 int monitors, cooked_mntrs;
582 /* number of interfaces with corresponding FIF_ flags */
583 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll;
584 unsigned int filter_flags; /* FIF_* */
586 /* protects the aggregated multicast list and filter calls */
587 spinlock_t filter_lock;
589 /* used for uploading changed mc list */
590 struct work_struct reconfig_filter;
592 /* used to reconfigure hardware SM PS */
593 struct work_struct recalc_smps;
595 /* aggregated multicast list */
596 struct dev_addr_list *mc_list;
599 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
602 * suspended is true if we finished all the suspend _and_ we have
603 * not yet come up from resume. This is to be used by mac80211
604 * to ensure driver sanity during suspend and mac80211's own
605 * sanity. It can eventually be used for WoW as well.
610 * Resuming is true while suspended, but when we're reprogramming the
611 * hardware -- at that time it's allowed to use ieee80211_queue_work()
612 * again even though some other parts of the stack are still suspended
613 * and we still drop received frames to avoid waking the stack.
618 * quiescing is true during the suspend process _only_ to
619 * ease timer cancelling etc.
623 /* device is started */
626 int tx_headroom; /* required headroom for hardware/radiotap */
628 /* Tasklet and skb queue to process calls from IRQ mode. All frames
629 * added to skb_queue will be processed, but frames in
630 * skb_queue_unreliable may be dropped if the total length of these
631 * queues increases over the limit. */
632 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
633 struct tasklet_struct tasklet;
634 struct sk_buff_head skb_queue;
635 struct sk_buff_head skb_queue_unreliable;
639 * The lock only protects the list, hash, timer and counter
640 * against manipulation, reads are done in RCU. Additionally,
641 * the lock protects each BSS's TIM bitmap.
644 unsigned long num_sta;
645 struct list_head sta_list;
646 struct sta_info *sta_hash[STA_HASH_SIZE];
647 struct timer_list sta_cleanup;
650 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
651 struct tasklet_struct tx_pending_tasklet;
654 * This lock is used to prevent concurrent A-MPDU
655 * session start/stop processing, this thus also
656 * synchronises the ->ampdu_action() callback to
657 * drivers and limits it to one at a time.
659 spinlock_t ampdu_lock;
661 /* number of interfaces with corresponding IFF_ flags */
662 atomic_t iff_allmultis, iff_promiscs;
664 struct rate_control_ref *rate_ctrl;
666 struct crypto_blkcipher *wep_tx_tfm;
667 struct crypto_blkcipher *wep_rx_tfm;
671 struct list_head interfaces;
672 struct mutex iflist_mtx;
675 * Key lock, protects sdata's key_list and sta_info's
676 * key pointers (write access, they're RCU.)
681 /* Scanning and BSS list */
682 struct mutex scan_mtx;
683 unsigned long scanning;
684 struct cfg80211_ssid scan_ssid;
685 struct cfg80211_scan_request *int_scan_req;
686 struct cfg80211_scan_request *scan_req, *hw_scan_req;
687 struct ieee80211_channel *scan_channel;
688 enum ieee80211_band hw_scan_band;
689 int scan_channel_idx;
692 enum mac80211_scan_state next_scan_state;
693 struct delayed_work scan_work;
694 struct ieee80211_sub_if_data *scan_sdata;
695 enum nl80211_channel_type oper_channel_type;
696 struct ieee80211_channel *oper_channel, *csa_channel;
699 /* dot11CountersTable */
700 u32 dot11TransmittedFragmentCount;
701 u32 dot11MulticastTransmittedFrameCount;
702 u32 dot11FailedCount;
704 u32 dot11MultipleRetryCount;
705 u32 dot11FrameDuplicateCount;
706 u32 dot11ReceivedFragmentCount;
707 u32 dot11MulticastReceivedFrameCount;
708 u32 dot11TransmittedFrameCount;
710 #ifdef CONFIG_MAC80211_LEDS
711 int tx_led_counter, rx_led_counter;
712 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
713 char tx_led_name[32], rx_led_name[32],
714 assoc_led_name[32], radio_led_name[32];
717 #ifdef CONFIG_MAC80211_DEBUGFS
718 struct work_struct sta_debugfs_add;
721 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
722 /* TX/RX handler statistics */
723 unsigned int tx_handlers_drop;
724 unsigned int tx_handlers_queued;
725 unsigned int tx_handlers_drop_unencrypted;
726 unsigned int tx_handlers_drop_fragment;
727 unsigned int tx_handlers_drop_wep;
728 unsigned int tx_handlers_drop_not_assoc;
729 unsigned int tx_handlers_drop_unauth_port;
730 unsigned int rx_handlers_drop;
731 unsigned int rx_handlers_queued;
732 unsigned int rx_handlers_drop_nullfunc;
733 unsigned int rx_handlers_drop_defrag;
734 unsigned int rx_handlers_drop_short;
735 unsigned int rx_handlers_drop_passive_scan;
736 unsigned int tx_expand_skb_head;
737 unsigned int tx_expand_skb_head_cloned;
738 unsigned int rx_expand_skb_head;
739 unsigned int rx_expand_skb_head2;
740 unsigned int rx_handlers_fragments;
741 unsigned int tx_status_drop;
742 #define I802_DEBUG_INC(c) (c)++
743 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
744 #define I802_DEBUG_INC(c) do { } while (0)
745 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
748 int total_ps_buffered; /* total number of all buffered unicast and
749 * multicast packets for power saving stations
751 int wifi_wme_noack_test;
752 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
755 bool scan_ps_enabled;
757 * PS can only be enabled when we have exactly one managed
758 * interface (and monitors) in PS, this then points there.
760 struct ieee80211_sub_if_data *ps_sdata;
761 struct work_struct dynamic_ps_enable_work;
762 struct work_struct dynamic_ps_disable_work;
763 struct timer_list dynamic_ps_timer;
764 struct notifier_block network_latency_notifier;
766 int user_power_level; /* in dBm */
767 int power_constr_level; /* in dBm */
769 enum ieee80211_smps_mode smps_mode;
771 struct work_struct restart_work;
773 #ifdef CONFIG_MAC80211_DEBUGFS
774 struct local_debugfsdentries {
775 struct dentry *rcdir;
776 struct dentry *stations;
782 static inline struct ieee80211_sub_if_data *
783 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
785 return netdev_priv(dev);
788 /* this struct represents 802.11n's RA/TID combination along with our vif */
789 struct ieee80211_ra_tid {
790 struct ieee80211_vif *vif;
795 /* Parsed Information Elements */
796 struct ieee802_11_elems {
800 /* pointers to IEs */
806 struct ieee80211_tim_ie *tim;
815 struct ieee80211_ht_cap *ht_cap_elem;
816 struct ieee80211_ht_info *ht_info_elem;
817 struct ieee80211_meshconf_ie *mesh_config;
823 struct ieee80211_rann_ie *rann;
827 u8 *quiet_elem; /* first quite element */
830 /* length of them, respectively */
842 u8 ext_supp_rates_len;
850 u8 ch_switch_elem_len;
852 u8 pwr_constr_elem_len;
854 u8 num_of_quiet_elem; /* can be more the one */
858 static inline struct ieee80211_local *hw_to_local(
859 struct ieee80211_hw *hw)
861 return container_of(hw, struct ieee80211_local, hw);
864 static inline struct ieee80211_hw *local_to_hw(
865 struct ieee80211_local *local)
871 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
873 return compare_ether_addr(raddr, addr) == 0 ||
874 is_broadcast_ether_addr(raddr);
878 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
879 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
880 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
882 void ieee80211_configure_filter(struct ieee80211_local *local);
883 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
885 extern bool ieee80211_disable_40mhz_24ghz;
888 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
889 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
890 struct cfg80211_auth_request *req);
891 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
892 struct cfg80211_assoc_request *req);
893 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
894 struct cfg80211_deauth_request *req,
896 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
897 struct cfg80211_disassoc_request *req,
899 ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
900 struct sk_buff *skb);
901 void ieee80211_send_pspoll(struct ieee80211_local *local,
902 struct ieee80211_sub_if_data *sdata);
903 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
904 int ieee80211_max_network_latency(struct notifier_block *nb,
905 unsigned long data, void *dummy);
906 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
907 struct ieee80211_channel_sw_ie *sw_elem,
908 struct ieee80211_bss *bss);
909 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
910 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
913 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
914 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
916 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
917 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
918 u8 *bssid, u8 *addr, u32 supp_rates);
919 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
920 struct cfg80211_ibss_params *params);
921 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
922 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
923 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
925 /* scan/BSS handling */
926 void ieee80211_scan_work(struct work_struct *work);
927 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
928 const u8 *ssid, u8 ssid_len);
929 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
930 struct cfg80211_scan_request *req);
931 void ieee80211_scan_cancel(struct ieee80211_local *local);
933 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
935 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
936 struct ieee80211_bss *
937 ieee80211_bss_info_update(struct ieee80211_local *local,
938 struct ieee80211_rx_status *rx_status,
939 struct ieee80211_mgmt *mgmt,
941 struct ieee802_11_elems *elems,
942 struct ieee80211_channel *channel,
944 struct ieee80211_bss *
945 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
946 u8 *ssid, u8 ssid_len);
947 void ieee80211_rx_bss_put(struct ieee80211_local *local,
948 struct ieee80211_bss *bss);
950 /* interface handling */
951 int ieee80211_iface_init(void);
952 void ieee80211_iface_exit(void);
953 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
954 struct net_device **new_dev, enum nl80211_iftype type,
955 struct vif_params *params);
956 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
957 enum nl80211_iftype type);
958 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
959 void ieee80211_remove_interfaces(struct ieee80211_local *local);
960 u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
961 void ieee80211_recalc_idle(struct ieee80211_local *local);
964 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
965 void ieee80211_tx_pending(unsigned long data);
966 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
967 struct net_device *dev);
968 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
969 struct net_device *dev);
972 * radiotap header for status frames
974 struct ieee80211_tx_status_rtap_hdr {
975 struct ieee80211_radiotap_header hdr;
980 } __attribute__ ((packed));
984 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
985 struct ieee80211_ht_cap *ht_cap_ie,
986 struct ieee80211_sta_ht_cap *ht_cap);
987 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
988 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
989 const u8 *da, u16 tid,
990 u16 initiator, u16 reason_code);
991 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
992 enum ieee80211_smps_mode smps, const u8 *da,
995 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
996 u16 tid, u16 initiator, u16 reason);
997 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
998 u16 initiator, u16 reason);
999 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
1000 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1001 struct sta_info *sta,
1002 struct ieee80211_mgmt *mgmt, size_t len);
1003 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1004 struct sta_info *sta,
1005 struct ieee80211_mgmt *mgmt,
1007 void ieee80211_process_addba_request(struct ieee80211_local *local,
1008 struct sta_info *sta,
1009 struct ieee80211_mgmt *mgmt,
1012 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1013 enum ieee80211_back_parties initiator);
1014 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1015 enum ieee80211_back_parties initiator);
1017 /* Spectrum management */
1018 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1019 struct ieee80211_mgmt *mgmt,
1022 /* Suspend/resume and hw reconfiguration */
1023 int ieee80211_reconfig(struct ieee80211_local *local);
1024 void ieee80211_stop_device(struct ieee80211_local *local);
1027 int __ieee80211_suspend(struct ieee80211_hw *hw);
1029 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1031 return ieee80211_reconfig(hw_to_local(hw));
1034 static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
1039 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1045 /* utility functions/constants */
1046 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1047 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1048 enum nl80211_iftype type);
1049 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1050 int rate, int erp, int short_preamble);
1051 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1052 struct ieee80211_hdr *hdr, const u8 *tsc,
1054 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
1055 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1056 void ieee802_11_parse_elems(u8 *start, size_t len,
1057 struct ieee802_11_elems *elems);
1058 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1059 struct ieee802_11_elems *elems,
1060 u64 filter, u32 crc);
1061 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1062 enum ieee80211_band band);
1064 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1065 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1066 void ieee80211_dynamic_ps_timer(unsigned long data);
1067 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1068 struct ieee80211_sub_if_data *sdata,
1070 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1071 struct ieee80211_hdr *hdr);
1072 void ieee80211_beacon_loss_work(struct work_struct *work);
1074 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1075 enum queue_stop_reason reason);
1076 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1077 enum queue_stop_reason reason);
1078 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1079 enum queue_stop_reason reason);
1080 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1081 enum queue_stop_reason reason);
1082 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1083 struct sk_buff *skb);
1084 int ieee80211_add_pending_skbs(struct ieee80211_local *local,
1085 struct sk_buff_head *skbs);
1087 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1088 u16 transaction, u16 auth_alg,
1089 u8 *extra, size_t extra_len, const u8 *bssid,
1090 const u8 *key, u8 key_len, u8 key_idx);
1091 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1092 const u8 *ie, size_t ie_len,
1093 enum ieee80211_band band);
1094 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1095 const u8 *ssid, size_t ssid_len,
1096 const u8 *ie, size_t ie_len);
1098 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1099 const size_t supp_rates_len,
1100 const u8 *supp_rates);
1101 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1102 struct ieee802_11_elems *elems,
1103 enum ieee80211_band band);
1104 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1105 enum ieee80211_smps_mode smps_mode);
1106 void ieee80211_recalc_smps(struct ieee80211_local *local,
1107 struct ieee80211_sub_if_data *forsdata);
1109 #ifdef CONFIG_MAC80211_NOINLINE
1110 #define debug_noinline noinline
1112 #define debug_noinline
1115 #endif /* IEEE80211_I_H */