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mac80211: reorder a few fields in sta_info
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / mac80211 / ieee80211_i.h
CommitLineData
f0706e82
JB		 1/*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 *
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.
9 */
10
11#ifndef IEEE80211_I_H
12#define IEEE80211_I_H
13
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>
571ecf67 24#include <linux/etherdevice.h>
f0706e82
JB		 25#include <net/wireless.h>
26#include "ieee80211_key.h"
27#include "sta_info.h"
28
29/* ieee80211.o internal definitions, etc. These are not included into
30 * low-level drivers. */
31
32#ifndef ETH_P_PAE
33#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
34#endif /* ETH_P_PAE */
35
36#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
37
38struct ieee80211_local;
39
f0706e82
JB		 40#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
41
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
45
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
50
51/* Required encryption head and tailroom */
52#define IEEE80211_ENCRYPT_HEADROOM 8
53#define IEEE80211_ENCRYPT_TAILROOM 12
54
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
60
61struct ieee80211_fragment_entry {
62 unsigned long first_frag_time;
63 unsigned int seq;
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 */
70};
71
72
73struct ieee80211_sta_bss {
74 struct list_head list;
75 struct ieee80211_sta_bss *hnext;
76 atomic_t users;
77
78 u8 bssid[ETH_ALEN];
79 u8 ssid[IEEE80211_MAX_SSID_LEN];
80 size_t ssid_len;
81 u16 capability; /* host byte order */
8318d78a 82 enum ieee80211_band band;
f0706e82
JB		 83 int freq;
84 int rssi, signal, noise;
85 u8 *wpa_ie;
86 size_t wpa_ie_len;
87 u8 *rsn_ie;
88 size_t rsn_ie_len;
89 u8 *wmm_ie;
90 size_t wmm_ie_len;
c7153508
RR		 91 u8 *ht_ie;
92 size_t ht_ie_len;
ee385855
LCC		 93#ifdef CONFIG_MAC80211_MESH
94 u8 *mesh_id;
95 size_t mesh_id_len;
ee385855 96 u8 *mesh_cfg;
902acc78 97#endif
f0706e82
JB		 98#define IEEE80211_MAX_SUPP_RATES 32
99 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
100 size_t supp_rates_len;
101 int beacon_int;
102 u64 timestamp;
103
104 int probe_resp;
105 unsigned long last_update;
106
5628221c
DD		 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. */
111 int has_erp_value;
112 u8 erp_value;
f0706e82
JB		 113};
114
902acc78
JB		 115static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
116{
117#ifdef CONFIG_MAC80211_MESH
118 return bss->mesh_cfg;
119#endif
120 return NULL;
121}
122
123static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
124{
125#ifdef CONFIG_MAC80211_MESH
126 return bss->mesh_id;
127#endif
128 return NULL;
129}
130
131static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
132{
133#ifdef CONFIG_MAC80211_MESH
134 return bss->mesh_id_len;
135#endif
136 return 0;
137}
138
f0706e82 139
9ae54c84
JB		 140typedef 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)
144
145typedef unsigned __bitwise__ ieee80211_rx_result;
e4c26add
JB		 146#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
147#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
148#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
149#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
9ae54c84 150
f0706e82 151
badffb72
JS		 152/* flags used in struct ieee80211_txrx_data.flags */
153/* whether the MSDU was fragmented */
154#define IEEE80211_TXRXD_FRAGMENTED BIT(0)
155#define IEEE80211_TXRXD_TXUNICAST BIT(1)
156#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
157#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
158#define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
159/* frame is destined to interface currently processed (incl. multicast frames) */
160#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
58d4185e 161#define IEEE80211_TXRXD_TX_INJECTED BIT(6)
64bd4b69 162#define IEEE80211_TXRXD_RX_AMSDU BIT(7)
3d30d949 163#define IEEE80211_TXRXD_RX_CMNTR_REPORTED BIT(8)
f0706e82
JB		 164struct ieee80211_txrx_data {
165 struct sk_buff *skb;
166 struct net_device *dev;
167 struct ieee80211_local *local;
168 struct ieee80211_sub_if_data *sdata;
169 struct sta_info *sta;
170 u16 fc, ethertype;
171 struct ieee80211_key *key;
badffb72 172 unsigned int flags;
f0706e82
JB		 173 union {
174 struct {
175 struct ieee80211_tx_control *control;
8318d78a 176 struct ieee80211_channel *channel;
f0706e82
JB		 177 struct ieee80211_rate *rate;
178 /* use this rate (if set) for last fragment; rate can
179 * be set to lower rate for the first fragments, e.g.,
180 * when using CTS protection with IEEE 802.11g. */
181 struct ieee80211_rate *last_frag_rate;
f0706e82
JB		 182
183 /* Extra fragments (in addition to the first fragment
184 * in skb) */
185 int num_extra_frag;
186 struct sk_buff **extra_frag;
187 } tx;
188 struct {
189 struct ieee80211_rx_status *status;
8318d78a 190 struct ieee80211_rate *rate;
f0706e82
JB		 191 int sent_ps_buffered;
192 int queue;
193 int load;
50741ae0
JB		 194 u32 tkip_iv32;
195 u16 tkip_iv16;
f0706e82
JB		 196 } rx;
197 } u;
198};
199
e8bf9649
JS		 200/* flags used in struct ieee80211_tx_packet_data.flags */
201#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
202#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
203#define IEEE80211_TXPD_REQUEUE BIT(2)
678f5f71 204#define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
9e723492 205#define IEEE80211_TXPD_AMPDU BIT(4)
f0706e82
JB		 206/* Stored in sk_buff->cb */
207struct ieee80211_tx_packet_data {
208 int ifindex;
209 unsigned long jiffies;
e8bf9649
JS		 210 unsigned int flags;
211 u8 queue;
f0706e82
JB		 212};
213
214struct ieee80211_tx_stored_packet {
215 struct ieee80211_tx_control control;
216 struct sk_buff *skb;
217 int num_extra_frag;
218 struct sk_buff **extra_frag;
f0706e82 219 struct ieee80211_rate *last_frag_rate;
badffb72 220 unsigned int last_frag_rate_ctrl_probe;
f0706e82
JB		 221};
222
5dfdaf58
JB		 223struct beacon_data {
224 u8 *head, *tail;
225 int head_len, tail_len;
226 int dtim_period;
227};
228
f0706e82 229struct ieee80211_if_ap {
5dfdaf58 230 struct beacon_data *beacon;
f0706e82 231
0ec3ca44
JB		 232 struct list_head vlans;
233
f0706e82
JB		 234 u8 ssid[IEEE80211_MAX_SSID_LEN];
235 size_t ssid_len;
f0706e82
JB		 236
237 /* yes, this looks ugly, but guarantees that we can later use
238 * bitmap_empty :)
004c872e 239 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
f0706e82
JB		 240 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
241 atomic_t num_sta_ps; /* number of stations in PS mode */
242 struct sk_buff_head ps_bc_buf;
5dfdaf58 243 int dtim_count;
f0706e82
JB		 244 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
245 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
246 int num_beacons; /* number of TXed beacon frames for this BSS */
247};
248
249struct ieee80211_if_wds {
250 u8 remote_addr[ETH_ALEN];
251 struct sta_info *sta;
252};
253
254struct ieee80211_if_vlan {
0ec3ca44
JB		 255 struct ieee80211_sub_if_data *ap;
256 struct list_head list;
f0706e82
JB		 257};
258
ee385855
LCC		 259struct mesh_stats {
260 __u32 fwded_frames; /* Mesh forwarded frames */
261 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
262 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
263 atomic_t estab_plinks;
264};
265
266#define PREQ_Q_F_START 0x1
267#define PREQ_Q_F_REFRESH 0x2
268struct mesh_preq_queue {
269 struct list_head list;
270 u8 dst[ETH_ALEN];
271 u8 flags;
272};
273
ee385855
LCC		 274struct mesh_config {
275 /* Timeouts in ms */
276 /* Mesh plink management parameters */
277 u16 dot11MeshRetryTimeout;
278 u16 dot11MeshConfirmTimeout;
279 u16 dot11MeshHoldingTimeout;
280 u16 dot11MeshMaxPeerLinks;
281 u8 dot11MeshMaxRetries;
282 u8 dot11MeshTTL;
283 bool auto_open_plinks;
284 /* HWMP parameters */
285 u32 dot11MeshHWMPactivePathTimeout;
286 u16 dot11MeshHWMPpreqMinInterval;
287 u16 dot11MeshHWMPnetDiameterTraversalTime;
288 u8 dot11MeshHWMPmaxPREQretries;
289 u32 path_refresh_time;
290 u16 min_discovery_timeout;
291};
902acc78 292
ee385855 293
d6f2da5b
JS		 294/* flags used in struct ieee80211_if_sta.flags */
295#define IEEE80211_STA_SSID_SET BIT(0)
296#define IEEE80211_STA_BSSID_SET BIT(1)
297#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
298#define IEEE80211_STA_AUTHENTICATED BIT(3)
299#define IEEE80211_STA_ASSOCIATED BIT(4)
300#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
301#define IEEE80211_STA_CREATE_IBSS BIT(6)
302#define IEEE80211_STA_MIXED_CELL BIT(7)
303#define IEEE80211_STA_WMM_ENABLED BIT(8)
304#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
305#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
306#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
5b98b1f7 307#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
f0706e82
JB		 308struct ieee80211_if_sta {
309 enum {
310 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
311 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
ee385855
LCC		 312 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED,
313 IEEE80211_MESH_UP
f0706e82
JB		 314 } state;
315 struct timer_list timer;
316 struct work_struct work;
317 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
318 u8 ssid[IEEE80211_MAX_SSID_LEN];
319 size_t ssid_len;
a0af5f14
HS		 320 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
321 size_t scan_ssid_len;
ee385855
LCC		 322#ifdef CONFIG_MAC80211_MESH
323 struct timer_list mesh_path_timer;
324 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
325 bool accepting_plinks;
326 size_t mesh_id_len;
327 /* Active Path Selection Protocol Identifier */
328 u8 mesh_pp_id[4];
329 /* Active Path Selection Metric Identifier */
330 u8 mesh_pm_id[4];
331 /* Congestion Control Mode Identifier */
332 u8 mesh_cc_id[4];
333 /* Local mesh Destination Sequence Number */
334 u32 dsn;
335 /* Last used PREQ ID */
336 u32 preq_id;
337 atomic_t mpaths;
338 /* Timestamp of last DSN update */
339 unsigned long last_dsn_update;
340 /* Timestamp of last DSN sent */
341 unsigned long last_preq;
342 struct mesh_rmc *rmc;
343 spinlock_t mesh_preq_queue_lock;
344 struct mesh_preq_queue preq_queue;
345 int preq_queue_len;
346 struct mesh_stats mshstats;
347 struct mesh_config mshcfg;
348 u8 mesh_seqnum[3];
349#endif
f0706e82
JB		 350 u16 aid;
351 u16 ap_capab, capab;
352 u8 *extra_ie; /* to be added to the end of AssocReq */
353 size_t extra_ie_len;
354
355 /* The last AssocReq/Resp IEs */
356 u8 *assocreq_ies, *assocresp_ies;
357 size_t assocreq_ies_len, assocresp_ies_len;
358
359 int auth_tries, assoc_tries;
360
d6f2da5b 361 unsigned int flags;
f0706e82
JB		 362#define IEEE80211_STA_REQ_SCAN 0
363#define IEEE80211_STA_REQ_AUTH 1
364#define IEEE80211_STA_REQ_RUN 2
365 unsigned long request;
366 struct sk_buff_head skb_queue;
367
f0706e82
JB		 368 unsigned long last_probe;
369
370#define IEEE80211_AUTH_ALG_OPEN BIT(0)
371#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
372#define IEEE80211_AUTH_ALG_LEAP BIT(2)
373 unsigned int auth_algs; /* bitfield of allowed auth algs */
374 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
375 int auth_transaction;
376
377 unsigned long ibss_join_req;
378 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
8318d78a 379 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
f0706e82
JB		 380
381 int wmm_last_param_set;
ee385855 382 int num_beacons; /* number of TXed beacon frames by this STA */
f0706e82
JB		 383};
384
902acc78
JB		 385static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
386 u8 mesh_id_len, u8 *mesh_id)
387{
388#ifdef CONFIG_MAC80211_MESH
389 ifsta->mesh_id_len = mesh_id_len;
390 memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
391#endif
392}
393
394#ifdef CONFIG_MAC80211_MESH
395#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
396 do { (sta)->mshstats.name++; } while (0)
397#else
398#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
399 do { } while (0)
400#endif
f0706e82 401
13262ffd
JS		 402/* flags used in struct ieee80211_sub_if_data.flags */
403#define IEEE80211_SDATA_ALLMULTI BIT(0)
404#define IEEE80211_SDATA_PROMISC BIT(1)
471b3efd 405#define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
8318d78a 406#define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
f0706e82
JB		 407struct ieee80211_sub_if_data {
408 struct list_head list;
f0706e82
JB		 409
410 struct wireless_dev wdev;
411
11a843b7
JB		 412 /* keys */
413 struct list_head key_list;
414
f0706e82
JB		 415 struct net_device *dev;
416 struct ieee80211_local *local;
417
13262ffd 418 unsigned int flags;
7e9ed188 419
f0706e82 420 int drop_unencrypted;
f0706e82 421
8318d78a
JB		 422 /*
423 * basic rates of this AP or the AP we're associated to
424 */
425 u64 basic_rates;
426
f0706e82
JB		 427 u16 sequence;
428
429 /* Fragment table for host-based reassembly */
430 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
431 unsigned int fragment_next;
432
433#define NUM_DEFAULT_KEYS 4
434 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
435 struct ieee80211_key *default_key;
436
471b3efd
JB		 437 /*
438 * BSS configuration for this interface.
439 *
440 * FIXME: I feel bad putting this here when we already have a
441 * bss pointer, but the bss pointer is just wrong when
442 * you have multiple virtual STA mode interfaces...
443 * This needs to be fixed.
444 */
445 struct ieee80211_bss_conf bss_conf;
f0706e82
JB		 446 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
447
448 union {
449 struct ieee80211_if_ap ap;
450 struct ieee80211_if_wds wds;
451 struct ieee80211_if_vlan vlan;
452 struct ieee80211_if_sta sta;
8cc9a739 453 u32 mntr_flags;
f0706e82
JB		 454 } u;
455 int channel_use;
456 int channel_use_raw;
e9f207f0
JB		 457
458#ifdef CONFIG_MAC80211_DEBUGFS
459 struct dentry *debugfsdir;
460 union {
461 struct {
462 struct dentry *channel_use;
463 struct dentry *drop_unencrypted;
e9f207f0
JB		 464 struct dentry *state;
465 struct dentry *bssid;
466 struct dentry *prev_bssid;
467 struct dentry *ssid_len;
468 struct dentry *aid;
469 struct dentry *ap_capab;
470 struct dentry *capab;
471 struct dentry *extra_ie_len;
472 struct dentry *auth_tries;
473 struct dentry *assoc_tries;
474 struct dentry *auth_algs;
475 struct dentry *auth_alg;
476 struct dentry *auth_transaction;
477 struct dentry *flags;
ee385855 478 struct dentry *num_beacons_sta;
e9f207f0
JB		 479 } sta;
480 struct {
481 struct dentry *channel_use;
482 struct dentry *drop_unencrypted;
e9f207f0 483 struct dentry *num_sta_ps;
e9f207f0
JB		 484 struct dentry *dtim_count;
485 struct dentry *num_beacons;
486 struct dentry *force_unicast_rateidx;
487 struct dentry *max_ratectrl_rateidx;
488 struct dentry *num_buffered_multicast;
e9f207f0
JB		 489 } ap;
490 struct {
491 struct dentry *channel_use;
492 struct dentry *drop_unencrypted;
e9f207f0
JB		 493 struct dentry *peer;
494 } wds;
495 struct {
496 struct dentry *channel_use;
497 struct dentry *drop_unencrypted;
e9f207f0
JB		 498 } vlan;
499 struct {
500 struct dentry *mode;
501 } monitor;
502 struct dentry *default_key;
503 } debugfs;
ee385855
LCC		 504
505#ifdef CONFIG_MAC80211_MESH
506 struct dentry *mesh_stats_dir;
507 struct {
508 struct dentry *fwded_frames;
509 struct dentry *dropped_frames_ttl;
510 struct dentry *dropped_frames_no_route;
511 struct dentry *estab_plinks;
902acc78 512 struct timer_list mesh_path_timer;
ee385855
LCC		 513 } mesh_stats;
514
515 struct dentry *mesh_config_dir;
516 struct {
517 struct dentry *dot11MeshRetryTimeout;
518 struct dentry *dot11MeshConfirmTimeout;
519 struct dentry *dot11MeshHoldingTimeout;
520 struct dentry *dot11MeshMaxRetries;
521 struct dentry *dot11MeshTTL;
522 struct dentry *auto_open_plinks;
523 struct dentry *dot11MeshMaxPeerLinks;
524 struct dentry *dot11MeshHWMPactivePathTimeout;
525 struct dentry *dot11MeshHWMPpreqMinInterval;
526 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
527 struct dentry *dot11MeshHWMPmaxPREQretries;
528 struct dentry *path_refresh_time;
529 struct dentry *min_discovery_timeout;
530 } mesh_config;
531#endif
532
e9f207f0 533#endif
32bfd35d
JB		 534 /* must be last, dynamically sized area in this! */
535 struct ieee80211_vif vif;
f0706e82
JB		 536};
537
32bfd35d
JB		 538static inline
539struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
540{
541 return container_of(p, struct ieee80211_sub_if_data, vif);
542}
543
f0706e82
JB		 544#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
545
546enum {
547 IEEE80211_RX_MSG = 1,
548 IEEE80211_TX_STATUS_MSG = 2,
eadc8d9e
RR		 549 IEEE80211_DELBA_MSG = 3,
550 IEEE80211_ADDBA_MSG = 4,
f0706e82
JB		 551};
552
553struct ieee80211_local {
554 /* embed the driver visible part.
555 * don't cast (use the static inlines below), but we keep
556 * it first anyway so they become a no-op */
557 struct ieee80211_hw hw;
558
559 const struct ieee80211_ops *ops;
560
f0706e82 561 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
f0706e82 562 int open_count;
3d30d949 563 int monitors, cooked_mntrs;
8cc9a739
MW		 564 /* number of interfaces with corresponding FIF_ flags */
565 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
4150c572 566 unsigned int filter_flags; /* FIF_* */
f0706e82
JB		 567 struct iw_statistics wstats;
568 u8 wstats_flags;
b306f453 569 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 570
571 enum {
572 IEEE80211_DEV_UNINITIALIZED = 0,
573 IEEE80211_DEV_REGISTERED,
574 IEEE80211_DEV_UNREGISTERED,
575 } reg_state;
576
577 /* Tasklet and skb queue to process calls from IRQ mode. All frames
578 * added to skb_queue will be processed, but frames in
579 * skb_queue_unreliable may be dropped if the total length of these
580 * queues increases over the limit. */
581#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
582 struct tasklet_struct tasklet;
583 struct sk_buff_head skb_queue;
584 struct sk_buff_head skb_queue_unreliable;
585
586 /* Station data structures */
be8755e1 587 rwlock_t sta_lock; /* protects STA data structures */
f0706e82
JB		 588 int num_sta; /* number of stations in sta_list */
589 struct list_head sta_list;
f0706e82
JB		 590 struct sta_info *sta_hash[STA_HASH_SIZE];
591 struct timer_list sta_cleanup;
592
9e723492
RR		 593 unsigned long state[NUM_TX_DATA_QUEUES_AMPDU];
594 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES_AMPDU];
f0706e82
JB		 595 struct tasklet_struct tx_pending_tasklet;
596
53918994
JB		 597 /* number of interfaces with corresponding IFF_ flags */
598 atomic_t iff_allmultis, iff_promiscs;
f0706e82
JB		 599
600 struct rate_control_ref *rate_ctrl;
601
f0706e82 602 int rts_threshold;
f0706e82
JB		 603 int fragmentation_threshold;
604 int short_retry_limit; /* dot11ShortRetryLimit */
605 int long_retry_limit; /* dot11LongRetryLimit */
f0706e82
JB		 606
607 struct crypto_blkcipher *wep_tx_tfm;
608 struct crypto_blkcipher *wep_rx_tfm;
609 u32 wep_iv;
f0706e82
JB		 610
611 int bridge_packets; /* bridge packets between associated stations and
612 * deliver multicast frames both back to wireless
613 * media and to the local net stack */
614
79010420
JB		 615 struct list_head interfaces;
616
ece8eddd
ZY		 617 bool sta_sw_scanning;
618 bool sta_hw_scanning;
f0706e82 619 int scan_channel_idx;
8318d78a
JB		 620 enum ieee80211_band scan_band;
621
f0706e82
JB		 622 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
623 unsigned long last_scan_completed;
624 struct delayed_work scan_work;
625 struct net_device *scan_dev;
626 struct ieee80211_channel *oper_channel, *scan_channel;
f0706e82
JB		 627 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
628 size_t scan_ssid_len;
629 struct list_head sta_bss_list;
630 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
631 spinlock_t sta_bss_lock;
f0706e82
JB		 632
633 /* SNMP counters */
634 /* dot11CountersTable */
635 u32 dot11TransmittedFragmentCount;
636 u32 dot11MulticastTransmittedFrameCount;
637 u32 dot11FailedCount;
638 u32 dot11RetryCount;
639 u32 dot11MultipleRetryCount;
640 u32 dot11FrameDuplicateCount;
641 u32 dot11ReceivedFragmentCount;
642 u32 dot11MulticastReceivedFrameCount;
643 u32 dot11TransmittedFrameCount;
644 u32 dot11WEPUndecryptableCount;
645
646#ifdef CONFIG_MAC80211_LEDS
647 int tx_led_counter, rx_led_counter;
cdcb006f
ID		 648 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
649 char tx_led_name[32], rx_led_name[32],
650 assoc_led_name[32], radio_led_name[32];
f0706e82
JB		 651#endif
652
653 u32 channel_use;
654 u32 channel_use_raw;
f0706e82 655
e9f207f0
JB		 656#ifdef CONFIG_MAC80211_DEBUGFS
657 struct work_struct sta_debugfs_add;
658#endif
659
f0706e82
JB		 660#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
661 /* TX/RX handler statistics */
662 unsigned int tx_handlers_drop;
663 unsigned int tx_handlers_queued;
664 unsigned int tx_handlers_drop_unencrypted;
665 unsigned int tx_handlers_drop_fragment;
666 unsigned int tx_handlers_drop_wep;
667 unsigned int tx_handlers_drop_not_assoc;
668 unsigned int tx_handlers_drop_unauth_port;
669 unsigned int rx_handlers_drop;
670 unsigned int rx_handlers_queued;
671 unsigned int rx_handlers_drop_nullfunc;
672 unsigned int rx_handlers_drop_defrag;
673 unsigned int rx_handlers_drop_short;
674 unsigned int rx_handlers_drop_passive_scan;
675 unsigned int tx_expand_skb_head;
676 unsigned int tx_expand_skb_head_cloned;
677 unsigned int rx_expand_skb_head;
678 unsigned int rx_expand_skb_head2;
679 unsigned int rx_handlers_fragments;
680 unsigned int tx_status_drop;
681 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
682 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
683#define I802_DEBUG_INC(c) (c)++
684#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
685#define I802_DEBUG_INC(c) do { } while (0)
686#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
687
688
f0706e82
JB		 689 int total_ps_buffered; /* total number of all buffered unicast and
690 * multicast packets for power saving stations
691 */
f0706e82
JB		 692 int wifi_wme_noack_test;
693 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
694
e9f207f0
JB		 695#ifdef CONFIG_MAC80211_DEBUGFS
696 struct local_debugfsdentries {
e9f207f0 697 struct dentry *frequency;
e9f207f0
JB		 698 struct dentry *antenna_sel_tx;
699 struct dentry *antenna_sel_rx;
700 struct dentry *bridge_packets;
e9f207f0
JB		 701 struct dentry *rts_threshold;
702 struct dentry *fragmentation_threshold;
703 struct dentry *short_retry_limit;
704 struct dentry *long_retry_limit;
705 struct dentry *total_ps_buffered;
e9f207f0 706 struct dentry *wep_iv;
e9f207f0
JB		 707 struct dentry *statistics;
708 struct local_debugfsdentries_statsdentries {
709 struct dentry *transmitted_fragment_count;
710 struct dentry *multicast_transmitted_frame_count;
711 struct dentry *failed_count;
712 struct dentry *retry_count;
713 struct dentry *multiple_retry_count;
714 struct dentry *frame_duplicate_count;
715 struct dentry *received_fragment_count;
716 struct dentry *multicast_received_frame_count;
717 struct dentry *transmitted_frame_count;
718 struct dentry *wep_undecryptable_count;
719 struct dentry *num_scans;
720#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
721 struct dentry *tx_handlers_drop;
722 struct dentry *tx_handlers_queued;
723 struct dentry *tx_handlers_drop_unencrypted;
724 struct dentry *tx_handlers_drop_fragment;
725 struct dentry *tx_handlers_drop_wep;
726 struct dentry *tx_handlers_drop_not_assoc;
727 struct dentry *tx_handlers_drop_unauth_port;
728 struct dentry *rx_handlers_drop;
729 struct dentry *rx_handlers_queued;
730 struct dentry *rx_handlers_drop_nullfunc;
731 struct dentry *rx_handlers_drop_defrag;
732 struct dentry *rx_handlers_drop_short;
733 struct dentry *rx_handlers_drop_passive_scan;
734 struct dentry *tx_expand_skb_head;
735 struct dentry *tx_expand_skb_head_cloned;
736 struct dentry *rx_expand_skb_head;
737 struct dentry *rx_expand_skb_head2;
738 struct dentry *rx_handlers_fragments;
739 struct dentry *tx_status_drop;
740 struct dentry *wme_tx_queue;
741 struct dentry *wme_rx_queue;
742#endif
743 struct dentry *dot11ACKFailureCount;
744 struct dentry *dot11RTSFailureCount;
745 struct dentry *dot11FCSErrorCount;
746 struct dentry *dot11RTSSuccessCount;
747 } stats;
748 struct dentry *stations;
749 struct dentry *keys;
750 } debugfs;
751#endif
f0706e82
JB		 752};
753
eadc8d9e
RR		 754/* this struct represents 802.11n's RA/TID combination */
755struct ieee80211_ra_tid {
756 u8 ra[ETH_ALEN];
757 u16 tid;
758};
759
ee385855
LCC		 760/* Parsed Information Elements */
761struct ieee802_11_elems {
762 /* pointers to IEs */
763 u8 *ssid;
764 u8 *supp_rates;
765 u8 *fh_params;
766 u8 *ds_params;
767 u8 *cf_params;
768 u8 *tim;
769 u8 *ibss_params;
770 u8 *challenge;
771 u8 *wpa;
772 u8 *rsn;
773 u8 *erp_info;
774 u8 *ext_supp_rates;
775 u8 *wmm_info;
776 u8 *wmm_param;
777 u8 *ht_cap_elem;
778 u8 *ht_info_elem;
779 u8 *mesh_config;
780 u8 *mesh_id;
781 u8 *peer_link;
782 u8 *preq;
783 u8 *prep;
784 u8 *perr;
785
786 /* length of them, respectively */
787 u8 ssid_len;
788 u8 supp_rates_len;
789 u8 fh_params_len;
790 u8 ds_params_len;
791 u8 cf_params_len;
792 u8 tim_len;
793 u8 ibss_params_len;
794 u8 challenge_len;
795 u8 wpa_len;
796 u8 rsn_len;
797 u8 erp_info_len;
798 u8 ext_supp_rates_len;
799 u8 wmm_info_len;
800 u8 wmm_param_len;
801 u8 ht_cap_elem_len;
802 u8 ht_info_elem_len;
803 u8 mesh_config_len;
804 u8 mesh_id_len;
805 u8 peer_link_len;
806 u8 preq_len;
807 u8 prep_len;
808 u8 perr_len;
809};
810
f0706e82
JB		 811static inline struct ieee80211_local *hw_to_local(
812 struct ieee80211_hw *hw)
813{
814 return container_of(hw, struct ieee80211_local, hw);
815}
816
817static inline struct ieee80211_hw *local_to_hw(
818 struct ieee80211_local *local)
819{
820 return &local->hw;
821}
822
823enum ieee80211_link_state_t {
824 IEEE80211_LINK_STATE_XOFF = 0,
825 IEEE80211_LINK_STATE_PENDING,
826};
827
828struct sta_attribute {
829 struct attribute attr;
830 ssize_t (*show)(const struct sta_info *, char *buf);
831 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
832};
833
571ecf67
JB		 834static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
835{
836 return compare_ether_addr(raddr, addr) == 0 ||
837 is_broadcast_ether_addr(raddr);
838}
839
840
f0706e82
JB		 841/* ieee80211.c */
842int ieee80211_hw_config(struct ieee80211_local *local);
843int ieee80211_if_config(struct net_device *dev);
844int ieee80211_if_config_beacon(struct net_device *dev);
f0706e82
JB		 845void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
846int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
847void ieee80211_if_setup(struct net_device *dev);
d3c990fb
RR		 848int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
849 struct ieee80211_ht_info *req_ht_cap,
850 struct ieee80211_ht_bss_info *req_bss_cap);
f0706e82
JB		 851
852/* ieee80211_ioctl.c */
853extern const struct iw_handler_def ieee80211_iw_handler_def;
854
f0706e82
JB		 855
856/* Least common multiple of the used rates (in 100 kbps). This is used to
857 * calculate rate_inv values for each rate so that only integers are needed. */
858#define CHAN_UTIL_RATE_LCM 95040
859/* 1 usec is 1/8 * (95040/10) = 1188 */
860#define CHAN_UTIL_PER_USEC 1188
861/* Amount of bits to shift the result right to scale the total utilization
862 * to values that will not wrap around 32-bit integers. */
863#define CHAN_UTIL_SHIFT 9
864/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
865 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
866 * raw value with about 23 should give utilization in 10th of a percentage
867 * (1/1000). However, utilization is only estimated and not all intervals
868 * between frames etc. are calculated. 18 seems to give numbers that are closer
869 * to the real maximum. */
870#define CHAN_UTIL_PER_10MS 18
871#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
872#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
873
874
875/* ieee80211_ioctl.c */
876int ieee80211_set_compression(struct ieee80211_local *local,
877 struct net_device *dev, struct sta_info *sta);
8318d78a 878int ieee80211_set_freq(struct ieee80211_local *local, int freq);
f0706e82 879/* ieee80211_sta.c */
ee385855 880#define IEEE80211_FC(type, stype) cpu_to_le16(type | stype)
f0706e82
JB		 881void ieee80211_sta_timer(unsigned long data);
882void ieee80211_sta_work(struct work_struct *work);
883void ieee80211_sta_scan_work(struct work_struct *work);
884void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
885 struct ieee80211_rx_status *rx_status);
886int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
887int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
888int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
889int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
890void ieee80211_sta_req_auth(struct net_device *dev,
891 struct ieee80211_if_sta *ifsta);
892int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
9ae54c84
JB		 893ieee80211_rx_result ieee80211_sta_rx_scan(
894 struct net_device *dev, struct sk_buff *skb,
895 struct ieee80211_rx_status *rx_status);
f0706e82
JB		 896void ieee80211_rx_bss_list_init(struct net_device *dev);
897void ieee80211_rx_bss_list_deinit(struct net_device *dev);
898int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
899struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
900 struct sk_buff *skb, u8 *bssid,
901 u8 *addr);
902int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
903int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
471b3efd
JB		 904void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
905 u32 changed);
d9430a32 906void ieee80211_reset_erp_info(struct net_device *dev);
c7153508
RR		 907int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
908 struct ieee80211_ht_info *ht_info);
909int ieee80211_ht_addt_info_ie_to_ht_bss_info(
910 struct ieee80211_ht_addt_info *ht_add_info_ie,
911 struct ieee80211_ht_bss_info *bss_info);
eadc8d9e
RR		 912void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
913 u16 tid, u8 dialog_token, u16 start_seq_num,
914 u16 agg_size, u16 timeout);
915void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
916 u16 initiator, u16 reason_code);
07db2183
RR		 917void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
918 u16 tid, u16 initiator, u16 reason);
919void sta_rx_agg_session_timer_expired(unsigned long data);
eadc8d9e 920void sta_addba_resp_timer_expired(unsigned long data);
ee385855
LCC		 921u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
922 struct ieee802_11_elems *elems,
923 enum ieee80211_band band);
ee385855
LCC		 924void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
925 int encrypt);
926void ieee802_11_parse_elems(u8 *start, size_t len,
927 struct ieee802_11_elems *elems);
928
902acc78
JB		 929#ifdef CONFIG_MAC80211_MESH
930void ieee80211_start_mesh(struct net_device *dev);
931#else
932static inline void ieee80211_start_mesh(struct net_device *dev)
933{}
934#endif
ee385855 935
f0706e82
JB		 936/* ieee80211_iface.c */
937int ieee80211_if_add(struct net_device *dev, const char *name,
ee385855
LCC		 938 struct net_device **new_dev, int type,
939 struct vif_params *params);
f0706e82
JB		 940void ieee80211_if_set_type(struct net_device *dev, int type);
941void ieee80211_if_reinit(struct net_device *dev);
942void __ieee80211_if_del(struct ieee80211_local *local,
943 struct ieee80211_sub_if_data *sdata);
944int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
945void ieee80211_if_free(struct net_device *dev);
946void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
f0706e82 947
e2ebc74d 948/* tx handling */
e2ebc74d
JB		 949void ieee80211_clear_tx_pending(struct ieee80211_local *local);
950void ieee80211_tx_pending(unsigned long data);
951int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
952int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
953int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
e2ebc74d 954
c2d1560a
JB		 955/* utility functions/constants */
956extern void *mac80211_wiphy_privid; /* for wiphy privid */
957extern const unsigned char rfc1042_header[6];
958extern const unsigned char bridge_tunnel_header[6];
71364716
RR		 959u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
960 enum ieee80211_if_types type);
c2d1560a
JB		 961int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
962 int rate, int erp, int short_preamble);
eb063c17
JB		 963void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
964 struct ieee80211_hdr *hdr);
f0706e82
JB		 965
966#endif /* IEEE80211_I_H */
kernel source for telekom puls (alcatel/mediatek)