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1/*
2 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
3 * remains copyright by the original authors
4 *
5 * Portions of the merged code are based on Host AP (software wireless
6 * LAN access point) driver for Intersil Prism2/2.5/3.
7 *
8 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
9 * <j@w1.fi>
10 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
11 *
12 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
13 * <jketreno@linux.intel.com>
14 * Copyright (c) 2004-2005, Intel Corporation
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License version 2 as
18 * published by the Free Software Foundation. See README and COPYING for
19 * more details.
20 *
21 * API Version History
22 * 1.0.x -- Initial version
23 * 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs,
24 * various structure changes, and crypto API init method
25 */
26#ifndef LIBIPW_H
27#define LIBIPW_H
28#include <linux/if_ether.h> /* ETH_ALEN */
29#include <linux/kernel.h> /* ARRAY_SIZE */
30#include <linux/wireless.h>
31#include <linux/ieee80211.h>
32
33#include <net/lib80211.h>
34#include <net/cfg80211.h>
35
36#define LIBIPW_VERSION "git-1.1.13"
37
38#define LIBIPW_DATA_LEN 2304
39/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
40 6.2.1.1.2.
41
42 The figure in section 7.1.2 suggests a body size of up to 2312
43 bytes is allowed, which is a bit confusing, I suspect this
44 represents the 2304 bytes of real data, plus a possible 8 bytes of
45 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
46
47#define LIBIPW_1ADDR_LEN 10
48#define LIBIPW_2ADDR_LEN 16
49#define LIBIPW_3ADDR_LEN 24
50#define LIBIPW_4ADDR_LEN 30
51#define LIBIPW_FCS_LEN 4
52#define LIBIPW_HLEN (LIBIPW_4ADDR_LEN)
53#define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN)
54
55#define MIN_FRAG_THRESHOLD 256U
56#define MAX_FRAG_THRESHOLD 2346U
57
58/* QOS control */
59#define LIBIPW_QCTL_TID 0x000F
60
61/* debug macros */
62
63#ifdef CONFIG_LIBIPW_DEBUG
64extern u32 libipw_debug_level;
65#define LIBIPW_DEBUG(level, fmt, args...) \
66do { if (libipw_debug_level & (level)) \
67 printk(KERN_DEBUG "libipw: %c %s " fmt, \
68 in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
69static inline bool libipw_ratelimit_debug(u32 level)
70{
71 return (libipw_debug_level & level) && net_ratelimit();
72}
73#else
74#define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)
75static inline bool libipw_ratelimit_debug(u32 level)
76{
77 return false;
78}
79#endif /* CONFIG_LIBIPW_DEBUG */
80
81/*
82 * To use the debug system:
83 *
84 * If you are defining a new debug classification, simply add it to the #define
85 * list here in the form of:
86 *
87 * #define LIBIPW_DL_xxxx VALUE
88 *
89 * shifting value to the left one bit from the previous entry. xxxx should be
90 * the name of the classification (for example, WEP)
91 *
92 * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your
93 * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want
94 * to send output to that classification.
95 *
96 * To add your debug level to the list of levels seen when you perform
97 *
98 * % cat /proc/net/ieee80211/debug_level
99 *
100 * you simply need to add your entry to the libipw_debug_level array.
101 *
102 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
103 * CONFIG_LIBIPW_DEBUG defined in your kernel configuration
104 *
105 */
106
107#define LIBIPW_DL_INFO (1<<0)
108#define LIBIPW_DL_WX (1<<1)
109#define LIBIPW_DL_SCAN (1<<2)
110#define LIBIPW_DL_STATE (1<<3)
111#define LIBIPW_DL_MGMT (1<<4)
112#define LIBIPW_DL_FRAG (1<<5)
113#define LIBIPW_DL_DROP (1<<7)
114
115#define LIBIPW_DL_TX (1<<8)
116#define LIBIPW_DL_RX (1<<9)
117#define LIBIPW_DL_QOS (1<<31)
118
119#define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)
120#define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)
121#define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)
122
123#define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)
124#define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)
125#define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)
126#define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)
127#define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)
128#define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)
129#define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)
130#define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)
131#define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
132#include <linux/netdevice.h>
133#include <linux/if_arp.h> /* ARPHRD_ETHER */
134
135#ifndef WIRELESS_SPY
136#define WIRELESS_SPY /* enable iwspy support */
137#endif
138#include <net/iw_handler.h> /* new driver API */
139
140#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
141
142#ifndef ETH_P_80211_RAW
143#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
144#endif
145
146/* IEEE 802.11 defines */
147
148#define P80211_OUI_LEN 3
149
150struct libipw_snap_hdr {
151
152 u8 dsap; /* always 0xAA */
153 u8 ssap; /* always 0xAA */
154 u8 ctrl; /* always 0x03 */
155 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
156
157} __packed;
158
159#define SNAP_SIZE sizeof(struct libipw_snap_hdr)
160
161#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
162#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
163#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
164
165#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
166#define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
167
168#define LIBIPW_STATMASK_SIGNAL (1<<0)
169#define LIBIPW_STATMASK_RSSI (1<<1)
170#define LIBIPW_STATMASK_NOISE (1<<2)
171#define LIBIPW_STATMASK_RATE (1<<3)
172#define LIBIPW_STATMASK_WEMASK 0x7
173
174#define LIBIPW_CCK_MODULATION (1<<0)
175#define LIBIPW_OFDM_MODULATION (1<<1)
176
177#define LIBIPW_24GHZ_BAND (1<<0)
178#define LIBIPW_52GHZ_BAND (1<<1)
179
180#define LIBIPW_CCK_RATE_1MB 0x02
181#define LIBIPW_CCK_RATE_2MB 0x04
182#define LIBIPW_CCK_RATE_5MB 0x0B
183#define LIBIPW_CCK_RATE_11MB 0x16
184#define LIBIPW_OFDM_RATE_6MB 0x0C
185#define LIBIPW_OFDM_RATE_9MB 0x12
186#define LIBIPW_OFDM_RATE_12MB 0x18
187#define LIBIPW_OFDM_RATE_18MB 0x24
188#define LIBIPW_OFDM_RATE_24MB 0x30
189#define LIBIPW_OFDM_RATE_36MB 0x48
190#define LIBIPW_OFDM_RATE_48MB 0x60
191#define LIBIPW_OFDM_RATE_54MB 0x6C
192#define LIBIPW_BASIC_RATE_MASK 0x80
193
194#define LIBIPW_CCK_RATE_1MB_MASK (1<<0)
195#define LIBIPW_CCK_RATE_2MB_MASK (1<<1)
196#define LIBIPW_CCK_RATE_5MB_MASK (1<<2)
197#define LIBIPW_CCK_RATE_11MB_MASK (1<<3)
198#define LIBIPW_OFDM_RATE_6MB_MASK (1<<4)
199#define LIBIPW_OFDM_RATE_9MB_MASK (1<<5)
200#define LIBIPW_OFDM_RATE_12MB_MASK (1<<6)
201#define LIBIPW_OFDM_RATE_18MB_MASK (1<<7)
202#define LIBIPW_OFDM_RATE_24MB_MASK (1<<8)
203#define LIBIPW_OFDM_RATE_36MB_MASK (1<<9)
204#define LIBIPW_OFDM_RATE_48MB_MASK (1<<10)
205#define LIBIPW_OFDM_RATE_54MB_MASK (1<<11)
206
207#define LIBIPW_CCK_RATES_MASK 0x0000000F
208#define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \
209 LIBIPW_CCK_RATE_2MB_MASK)
210#define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \
211 LIBIPW_CCK_RATE_5MB_MASK | \
212 LIBIPW_CCK_RATE_11MB_MASK)
213
214#define LIBIPW_OFDM_RATES_MASK 0x00000FF0
215#define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \
216 LIBIPW_OFDM_RATE_12MB_MASK | \
217 LIBIPW_OFDM_RATE_24MB_MASK)
218#define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \
219 LIBIPW_OFDM_RATE_9MB_MASK | \
220 LIBIPW_OFDM_RATE_18MB_MASK | \
221 LIBIPW_OFDM_RATE_36MB_MASK | \
222 LIBIPW_OFDM_RATE_48MB_MASK | \
223 LIBIPW_OFDM_RATE_54MB_MASK)
224#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
225 LIBIPW_CCK_DEFAULT_RATES_MASK)
226
227#define LIBIPW_NUM_OFDM_RATES 8
228#define LIBIPW_NUM_CCK_RATES 4
229#define LIBIPW_OFDM_SHIFT_MASK_A 4
230
231/* NOTE: This data is for statistical purposes; not all hardware provides this
232 * information for frames received.
233 * For libipw_rx_mgt, you need to set at least the 'len' parameter.
234 */
235struct libipw_rx_stats {
236 u32 mac_time;
237 s8 rssi;
238 u8 signal;
239 u8 noise;
240 u16 rate; /* in 100 kbps */
241 u8 received_channel;
242 u8 control;
243 u8 mask;
244 u8 freq;
245 u16 len;
246 u64 tsf;
247 u32 beacon_time;
248};
249
250/* IEEE 802.11 requires that STA supports concurrent reception of at least
251 * three fragmented frames. This define can be increased to support more
252 * concurrent frames, but it should be noted that each entry can consume about
253 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
254#define LIBIPW_FRAG_CACHE_LEN 4
255
256struct libipw_frag_entry {
257 unsigned long first_frag_time;
258 unsigned int seq;
259 unsigned int last_frag;
260 struct sk_buff *skb;
261 u8 src_addr[ETH_ALEN];
262 u8 dst_addr[ETH_ALEN];
263};
264
265struct libipw_stats {
266 unsigned int tx_unicast_frames;
267 unsigned int tx_multicast_frames;
268 unsigned int tx_fragments;
269 unsigned int tx_unicast_octets;
270 unsigned int tx_multicast_octets;
271 unsigned int tx_deferred_transmissions;
272 unsigned int tx_single_retry_frames;
273 unsigned int tx_multiple_retry_frames;
274 unsigned int tx_retry_limit_exceeded;
275 unsigned int tx_discards;
276 unsigned int rx_unicast_frames;
277 unsigned int rx_multicast_frames;
278 unsigned int rx_fragments;
279 unsigned int rx_unicast_octets;
280 unsigned int rx_multicast_octets;
281 unsigned int rx_fcs_errors;
282 unsigned int rx_discards_no_buffer;
283 unsigned int tx_discards_wrong_sa;
284 unsigned int rx_discards_undecryptable;
285 unsigned int rx_message_in_msg_fragments;
286 unsigned int rx_message_in_bad_msg_fragments;
287};
288
289struct libipw_device;
290
291#define SEC_KEY_1 (1<<0)
292#define SEC_KEY_2 (1<<1)
293#define SEC_KEY_3 (1<<2)
294#define SEC_KEY_4 (1<<3)
295#define SEC_ACTIVE_KEY (1<<4)
296#define SEC_AUTH_MODE (1<<5)
297#define SEC_UNICAST_GROUP (1<<6)
298#define SEC_LEVEL (1<<7)
299#define SEC_ENABLED (1<<8)
300#define SEC_ENCRYPT (1<<9)
301
302#define SEC_LEVEL_0 0 /* None */
303#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
304#define SEC_LEVEL_2 2 /* Level 1 + TKIP */
305#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
306#define SEC_LEVEL_3 4 /* Level 2 + CCMP */
307
308#define SEC_ALG_NONE 0
309#define SEC_ALG_WEP 1
310#define SEC_ALG_TKIP 2
311#define SEC_ALG_CCMP 3
312
313#define WEP_KEYS 4
314#define WEP_KEY_LEN 13
315#define SCM_KEY_LEN 32
316#define SCM_TEMPORAL_KEY_LENGTH 16
317
318struct libipw_security {
319 u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
320 u8 auth_mode;
321 u8 encode_alg[WEP_KEYS];
322 u8 key_sizes[WEP_KEYS];
323 u8 keys[WEP_KEYS][SCM_KEY_LEN];
324 u8 level;
325 u16 flags;
326} __packed;
327
328/*
329
330 802.11 data frame from AP
331
332 ,-------------------------------------------------------------------.
333Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
334 |------|------|---------|---------|---------|------|---------|------|
335Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
336 | | tion | (BSSID) | | | ence | data | |
337 `-------------------------------------------------------------------'
338
339Total: 28-2340 bytes
340
341*/
342
343#define BEACON_PROBE_SSID_ID_POSITION 12
344
345struct libipw_hdr_1addr {
346 __le16 frame_ctl;
347 __le16 duration_id;
348 u8 addr1[ETH_ALEN];
349 u8 payload[0];
350} __packed;
351
352struct libipw_hdr_2addr {
353 __le16 frame_ctl;
354 __le16 duration_id;
355 u8 addr1[ETH_ALEN];
356 u8 addr2[ETH_ALEN];
357 u8 payload[0];
358} __packed;
359
360struct libipw_hdr_3addr {
361 __le16 frame_ctl;
362 __le16 duration_id;
363 u8 addr1[ETH_ALEN];
364 u8 addr2[ETH_ALEN];
365 u8 addr3[ETH_ALEN];
366 __le16 seq_ctl;
367 u8 payload[0];
368} __packed;
369
370struct libipw_hdr_4addr {
371 __le16 frame_ctl;
372 __le16 duration_id;
373 u8 addr1[ETH_ALEN];
374 u8 addr2[ETH_ALEN];
375 u8 addr3[ETH_ALEN];
376 __le16 seq_ctl;
377 u8 addr4[ETH_ALEN];
378 u8 payload[0];
379} __packed;
380
381struct libipw_hdr_3addrqos {
382 __le16 frame_ctl;
383 __le16 duration_id;
384 u8 addr1[ETH_ALEN];
385 u8 addr2[ETH_ALEN];
386 u8 addr3[ETH_ALEN];
387 __le16 seq_ctl;
388 u8 payload[0];
389 __le16 qos_ctl;
390} __packed;
391
392struct libipw_info_element {
393 u8 id;
394 u8 len;
395 u8 data[0];
396} __packed;
397
398/*
399 * These are the data types that can make up management packets
400 *
401 u16 auth_algorithm;
402 u16 auth_sequence;
403 u16 beacon_interval;
404 u16 capability;
405 u8 current_ap[ETH_ALEN];
406 u16 listen_interval;
407 struct {
408 u16 association_id:14, reserved:2;
409 } __packed;
410 u32 time_stamp[2];
411 u16 reason;
412 u16 status;
413*/
414
415struct libipw_auth {
416 struct libipw_hdr_3addr header;
417 __le16 algorithm;
418 __le16 transaction;
419 __le16 status;
420 /* challenge */
421 struct libipw_info_element info_element[0];
422} __packed;
423
424struct libipw_channel_switch {
425 u8 id;
426 u8 len;
427 u8 mode;
428 u8 channel;
429 u8 count;
430} __packed;
431
432struct libipw_action {
433 struct libipw_hdr_3addr header;
434 u8 category;
435 u8 action;
436 union {
437 struct libipw_action_exchange {
438 u8 token;
439 struct libipw_info_element info_element[0];
440 } exchange;
441 struct libipw_channel_switch channel_switch;
442
443 } format;
444} __packed;
445
446struct libipw_disassoc {
447 struct libipw_hdr_3addr header;
448 __le16 reason;
449} __packed;
450
451/* Alias deauth for disassoc */
452#define libipw_deauth libipw_disassoc
453
454struct libipw_probe_request {
455 struct libipw_hdr_3addr header;
456 /* SSID, supported rates */
457 struct libipw_info_element info_element[0];
458} __packed;
459
460struct libipw_probe_response {
461 struct libipw_hdr_3addr header;
462 __le32 time_stamp[2];
463 __le16 beacon_interval;
464 __le16 capability;
465 /* SSID, supported rates, FH params, DS params,
466 * CF params, IBSS params, TIM (if beacon), RSN */
467 struct libipw_info_element info_element[0];
468} __packed;
469
470/* Alias beacon for probe_response */
471#define libipw_beacon libipw_probe_response
472
473struct libipw_assoc_request {
474 struct libipw_hdr_3addr header;
475 __le16 capability;
476 __le16 listen_interval;
477 /* SSID, supported rates, RSN */
478 struct libipw_info_element info_element[0];
479} __packed;
480
481struct libipw_reassoc_request {
482 struct libipw_hdr_3addr header;
483 __le16 capability;
484 __le16 listen_interval;
485 u8 current_ap[ETH_ALEN];
486 struct libipw_info_element info_element[0];
487} __packed;
488
489struct libipw_assoc_response {
490 struct libipw_hdr_3addr header;
491 __le16 capability;
492 __le16 status;
493 __le16 aid;
494 /* supported rates */
495 struct libipw_info_element info_element[0];
496} __packed;
497
498struct libipw_txb {
499 u8 nr_frags;
500 u8 encrypted;
501 u8 rts_included;
502 u8 reserved;
503 u16 frag_size;
504 u16 payload_size;
505 struct sk_buff *fragments[0];
506};
507
508/* SWEEP TABLE ENTRIES NUMBER */
509#define MAX_SWEEP_TAB_ENTRIES 42
510#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
511/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
512 * only use 8, and then use extended rates for the remaining supported
513 * rates. Other APs, however, stick all of their supported rates on the
514 * main rates information element... */
515#define MAX_RATES_LENGTH ((u8)12)
516#define MAX_RATES_EX_LENGTH ((u8)16)
517#define MAX_NETWORK_COUNT 128
518
519#define CRC_LENGTH 4U
520
521#define MAX_WPA_IE_LEN 64
522
523#define NETWORK_HAS_OFDM (1<<1)
524#define NETWORK_HAS_CCK (1<<2)
525
526/* QoS structure */
527#define NETWORK_HAS_QOS_PARAMETERS (1<<3)
528#define NETWORK_HAS_QOS_INFORMATION (1<<4)
529#define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \
530 NETWORK_HAS_QOS_INFORMATION)
531
532/* 802.11h */
533#define NETWORK_HAS_POWER_CONSTRAINT (1<<5)
534#define NETWORK_HAS_CSA (1<<6)
535#define NETWORK_HAS_QUIET (1<<7)
536#define NETWORK_HAS_IBSS_DFS (1<<8)
537#define NETWORK_HAS_TPC_REPORT (1<<9)
538
539#define NETWORK_HAS_ERP_VALUE (1<<10)
540
541#define QOS_QUEUE_NUM 4
542#define QOS_OUI_LEN 3
543#define QOS_OUI_TYPE 2
544#define QOS_ELEMENT_ID 221
545#define QOS_OUI_INFO_SUB_TYPE 0
546#define QOS_OUI_PARAM_SUB_TYPE 1
547#define QOS_VERSION_1 1
548#define QOS_AIFSN_MIN_VALUE 2
549
550struct libipw_qos_information_element {
551 u8 elementID;
552 u8 length;
553 u8 qui[QOS_OUI_LEN];
554 u8 qui_type;
555 u8 qui_subtype;
556 u8 version;
557 u8 ac_info;
558} __packed;
559
560struct libipw_qos_ac_parameter {
561 u8 aci_aifsn;
562 u8 ecw_min_max;
563 __le16 tx_op_limit;
564} __packed;
565
566struct libipw_qos_parameter_info {
567 struct libipw_qos_information_element info_element;
568 u8 reserved;
569 struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
570} __packed;
571
572struct libipw_qos_parameters {
573 __le16 cw_min[QOS_QUEUE_NUM];
574 __le16 cw_max[QOS_QUEUE_NUM];
575 u8 aifs[QOS_QUEUE_NUM];
576 u8 flag[QOS_QUEUE_NUM];
577 __le16 tx_op_limit[QOS_QUEUE_NUM];
578} __packed;
579
580struct libipw_qos_data {
581 struct libipw_qos_parameters parameters;
582 int active;
583 int supported;
584 u8 param_count;
585 u8 old_param_count;
586};
587
588struct libipw_tim_parameters {
589 u8 tim_count;
590 u8 tim_period;
591} __packed;
592
593/*******************************************************/
594
595enum { /* libipw_basic_report.map */
596 LIBIPW_BASIC_MAP_BSS = (1 << 0),
597 LIBIPW_BASIC_MAP_OFDM = (1 << 1),
598 LIBIPW_BASIC_MAP_UNIDENTIFIED = (1 << 2),
599 LIBIPW_BASIC_MAP_RADAR = (1 << 3),
600 LIBIPW_BASIC_MAP_UNMEASURED = (1 << 4),
601 /* Bits 5-7 are reserved */
602
603};
604struct libipw_basic_report {
605 u8 channel;
606 __le64 start_time;
607 __le16 duration;
608 u8 map;
609} __packed;
610
611enum { /* libipw_measurement_request.mode */
612 /* Bit 0 is reserved */
613 LIBIPW_MEASUREMENT_ENABLE = (1 << 1),
614 LIBIPW_MEASUREMENT_REQUEST = (1 << 2),
615 LIBIPW_MEASUREMENT_REPORT = (1 << 3),
616 /* Bits 4-7 are reserved */
617};
618
619enum {
620 LIBIPW_REPORT_BASIC = 0, /* required */
621 LIBIPW_REPORT_CCA = 1, /* optional */
622 LIBIPW_REPORT_RPI = 2, /* optional */
623 /* 3-255 reserved */
624};
625
626struct libipw_measurement_params {
627 u8 channel;
628 __le64 start_time;
629 __le16 duration;
630} __packed;
631
632struct libipw_measurement_request {
633 struct libipw_info_element ie;
634 u8 token;
635 u8 mode;
636 u8 type;
637 struct libipw_measurement_params params[0];
638} __packed;
639
640struct libipw_measurement_report {
641 struct libipw_info_element ie;
642 u8 token;
643 u8 mode;
644 u8 type;
645 union {
646 struct libipw_basic_report basic[0];
647 } u;
648} __packed;
649
650struct libipw_tpc_report {
651 u8 transmit_power;
652 u8 link_margin;
653} __packed;
654
655struct libipw_channel_map {
656 u8 channel;
657 u8 map;
658} __packed;
659
660struct libipw_ibss_dfs {
661 struct libipw_info_element ie;
662 u8 owner[ETH_ALEN];
663 u8 recovery_interval;
664 struct libipw_channel_map channel_map[0];
665};
666
667struct libipw_csa {
668 u8 mode;
669 u8 channel;
670 u8 count;
671} __packed;
672
673struct libipw_quiet {
674 u8 count;
675 u8 period;
676 u8 duration;
677 u8 offset;
678} __packed;
679
680struct libipw_network {
681 /* These entries are used to identify a unique network */
682 u8 bssid[ETH_ALEN];
683 u8 channel;
684 /* Ensure null-terminated for any debug msgs */
685 u8 ssid[IW_ESSID_MAX_SIZE + 1];
686 u8 ssid_len;
687
688 struct libipw_qos_data qos_data;
689
690 /* These are network statistics */
691 struct libipw_rx_stats stats;
692 u16 capability;
693 u8 rates[MAX_RATES_LENGTH];
694 u8 rates_len;
695 u8 rates_ex[MAX_RATES_EX_LENGTH];
696 u8 rates_ex_len;
697 unsigned long last_scanned;
698 u8 mode;
699 u32 flags;
700 u32 last_associate;
701 u32 time_stamp[2];
702 u16 beacon_interval;
703 u16 listen_interval;
704 u16 atim_window;
705 u8 erp_value;
706 u8 wpa_ie[MAX_WPA_IE_LEN];
707 size_t wpa_ie_len;
708 u8 rsn_ie[MAX_WPA_IE_LEN];
709 size_t rsn_ie_len;
710 struct libipw_tim_parameters tim;
711
712 /* 802.11h info */
713
714 /* Power Constraint - mandatory if spctrm mgmt required */
715 u8 power_constraint;
716
717 /* TPC Report - mandatory if spctrm mgmt required */
718 struct libipw_tpc_report tpc_report;
719
720 /* IBSS DFS - mandatory if spctrm mgmt required and IBSS
721 * NOTE: This is variable length and so must be allocated dynamically */
722 struct libipw_ibss_dfs *ibss_dfs;
723
724 /* Channel Switch Announcement - optional if spctrm mgmt required */
725 struct libipw_csa csa;
726
727 /* Quiet - optional if spctrm mgmt required */
728 struct libipw_quiet quiet;
729
730 struct list_head list;
731};
732
733enum libipw_state {
734 LIBIPW_UNINITIALIZED = 0,
735 LIBIPW_INITIALIZED,
736 LIBIPW_ASSOCIATING,
737 LIBIPW_ASSOCIATED,
738 LIBIPW_AUTHENTICATING,
739 LIBIPW_AUTHENTICATED,
740 LIBIPW_SHUTDOWN
741};
742
743#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
744#define DEFAULT_FTS 2346
745
746#define CFG_LIBIPW_RESERVE_FCS (1<<0)
747#define CFG_LIBIPW_COMPUTE_FCS (1<<1)
748#define CFG_LIBIPW_RTS (1<<2)
749
750#define LIBIPW_24GHZ_MIN_CHANNEL 1
751#define LIBIPW_24GHZ_MAX_CHANNEL 14
752#define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \
753 LIBIPW_24GHZ_MIN_CHANNEL + 1)
754
755#define LIBIPW_52GHZ_MIN_CHANNEL 34
756#define LIBIPW_52GHZ_MAX_CHANNEL 165
757#define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \
758 LIBIPW_52GHZ_MIN_CHANNEL + 1)
759
760enum {
761 LIBIPW_CH_PASSIVE_ONLY = (1 << 0),
762 LIBIPW_CH_80211H_RULES = (1 << 1),
763 LIBIPW_CH_B_ONLY = (1 << 2),
764 LIBIPW_CH_NO_IBSS = (1 << 3),
765 LIBIPW_CH_UNIFORM_SPREADING = (1 << 4),
766 LIBIPW_CH_RADAR_DETECT = (1 << 5),
767 LIBIPW_CH_INVALID = (1 << 6),
768};
769
770struct libipw_channel {
771 u32 freq; /* in MHz */
772 u8 channel;
773 u8 flags;
774 u8 max_power; /* in dBm */
775};
776
777struct libipw_geo {
778 u8 name[4];
779 u8 bg_channels;
780 u8 a_channels;
781 struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];
782 struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];
783};
784
785struct libipw_device {
786 struct net_device *dev;
787 struct wireless_dev wdev;
788 struct libipw_security sec;
789
790 /* Bookkeeping structures */
791 struct libipw_stats ieee_stats;
792
793 struct libipw_geo geo;
794 struct ieee80211_supported_band bg_band;
795 struct ieee80211_supported_band a_band;
796
797 /* Probe / Beacon management */
798 struct list_head network_free_list;
799 struct list_head network_list;
800 struct libipw_network *networks[MAX_NETWORK_COUNT];
801 int scans;
802 int scan_age;
803
804 int iw_mode; /* operating mode (IW_MODE_*) */
805 struct iw_spy_data spy_data; /* iwspy support */
806
807 spinlock_t lock;
808
809 int tx_headroom; /* Set to size of any additional room needed at front
810 * of allocated Tx SKBs */
811 u32 config;
812
813 /* WEP and other encryption related settings at the device level */
814 int open_wep; /* Set to 1 to allow unencrypted frames */
815
816 int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
817 * WEP key changes */
818
819 /* If the host performs {en,de}cryption, then set to 1 */
820 int host_encrypt;
821 int host_encrypt_msdu;
822 int host_decrypt;
823 /* host performs multicast decryption */
824 int host_mc_decrypt;
825
826 /* host should strip IV and ICV from protected frames */
827 /* meaningful only when hardware decryption is being used */
828 int host_strip_iv_icv;
829
830 int host_open_frag;
831 int ieee802_1x; /* is IEEE 802.1X used */
832
833 /* WPA data */
834 int wpa_enabled;
835 int drop_unencrypted;
836 int privacy_invoked;
837 size_t wpa_ie_len;
838 u8 *wpa_ie;
839
840 struct lib80211_crypt_info crypt_info;
841
842 int bcrx_sta_key; /* use individual keys to override default keys even
843 * with RX of broad/multicast frames */
844
845 /* Fragmentation structures */
846 struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];
847 unsigned int frag_next_idx;
848 u16 fts; /* Fragmentation Threshold */
849 u16 rts; /* RTS threshold */
850
851 /* Association info */
852 u8 bssid[ETH_ALEN];
853
854 enum libipw_state state;
855
856 int mode; /* A, B, G */
857 int modulation; /* CCK, OFDM */
858 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
859 int abg_true; /* ABG flag */
860
861 int perfect_rssi;
862 int worst_rssi;
863
864 u16 prev_seq_ctl; /* used to drop duplicate frames */
865
866 /* Callback functions */
867 void (*set_security) (struct net_device * dev,
868 struct libipw_security * sec);
869 netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,
870 struct net_device * dev, int pri);
871 int (*reset_port) (struct net_device * dev);
872 int (*is_queue_full) (struct net_device * dev, int pri);
873
874 int (*handle_management) (struct net_device * dev,
875 struct libipw_network * network, u16 type);
876 int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
877
878 /* Typical STA methods */
879 int (*handle_auth) (struct net_device * dev,
880 struct libipw_auth * auth);
881 int (*handle_deauth) (struct net_device * dev,
882 struct libipw_deauth * auth);
883 int (*handle_action) (struct net_device * dev,
884 struct libipw_action * action,
885 struct libipw_rx_stats * stats);
886 int (*handle_disassoc) (struct net_device * dev,
887 struct libipw_disassoc * assoc);
888 int (*handle_beacon) (struct net_device * dev,
889 struct libipw_beacon * beacon,
890 struct libipw_network * network);
891 int (*handle_probe_response) (struct net_device * dev,
892 struct libipw_probe_response * resp,
893 struct libipw_network * network);
894 int (*handle_probe_request) (struct net_device * dev,
895 struct libipw_probe_request * req,
896 struct libipw_rx_stats * stats);
897 int (*handle_assoc_response) (struct net_device * dev,
898 struct libipw_assoc_response * resp,
899 struct libipw_network * network);
900
901 /* Typical AP methods */
902 int (*handle_assoc_request) (struct net_device * dev);
903 int (*handle_reassoc_request) (struct net_device * dev,
904 struct libipw_reassoc_request * req);
905
906 /* This must be the last item so that it points to the data
907 * allocated beyond this structure by alloc_libipw */
908 u8 priv[0];
909};
910
911#define IEEE_A (1<<0)
912#define IEEE_B (1<<1)
913#define IEEE_G (1<<2)
914#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
915
916static inline void *libipw_priv(struct net_device *dev)
917{
918 return ((struct libipw_device *)netdev_priv(dev))->priv;
919}
920
921static inline int libipw_is_valid_mode(struct libipw_device *ieee,
922 int mode)
923{
924 /*
925 * It is possible for both access points and our device to support
926 * combinations of modes, so as long as there is one valid combination
927 * of ap/device supported modes, then return success
928 *
929 */
930 if ((mode & IEEE_A) &&
931 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
932 (ieee->freq_band & LIBIPW_52GHZ_BAND))
933 return 1;
934
935 if ((mode & IEEE_G) &&
936 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
937 (ieee->freq_band & LIBIPW_24GHZ_BAND))
938 return 1;
939
940 if ((mode & IEEE_B) &&
941 (ieee->modulation & LIBIPW_CCK_MODULATION) &&
942 (ieee->freq_band & LIBIPW_24GHZ_BAND))
943 return 1;
944
945 return 0;
946}
947
948static inline int libipw_get_hdrlen(u16 fc)
949{
950 int hdrlen = LIBIPW_3ADDR_LEN;
951 u16 stype = WLAN_FC_GET_STYPE(fc);
952
953 switch (WLAN_FC_GET_TYPE(fc)) {
954 case IEEE80211_FTYPE_DATA:
955 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
956 hdrlen = LIBIPW_4ADDR_LEN;
957 if (stype & IEEE80211_STYPE_QOS_DATA)
958 hdrlen += 2;
959 break;
960 case IEEE80211_FTYPE_CTL:
961 switch (WLAN_FC_GET_STYPE(fc)) {
962 case IEEE80211_STYPE_CTS:
963 case IEEE80211_STYPE_ACK:
964 hdrlen = LIBIPW_1ADDR_LEN;
965 break;
966 default:
967 hdrlen = LIBIPW_2ADDR_LEN;
968 break;
969 }
970 break;
971 }
972
973 return hdrlen;
974}
975
976static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr)
977{
978 switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
979 case LIBIPW_1ADDR_LEN:
980 return ((struct libipw_hdr_1addr *)hdr)->payload;
981 case LIBIPW_2ADDR_LEN:
982 return ((struct libipw_hdr_2addr *)hdr)->payload;
983 case LIBIPW_3ADDR_LEN:
984 return ((struct libipw_hdr_3addr *)hdr)->payload;
985 case LIBIPW_4ADDR_LEN:
986 return ((struct libipw_hdr_4addr *)hdr)->payload;
987 }
988 return NULL;
989}
990
991static inline int libipw_is_ofdm_rate(u8 rate)
992{
993 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
994 case LIBIPW_OFDM_RATE_6MB:
995 case LIBIPW_OFDM_RATE_9MB:
996 case LIBIPW_OFDM_RATE_12MB:
997 case LIBIPW_OFDM_RATE_18MB:
998 case LIBIPW_OFDM_RATE_24MB:
999 case LIBIPW_OFDM_RATE_36MB:
1000 case LIBIPW_OFDM_RATE_48MB:
1001 case LIBIPW_OFDM_RATE_54MB:
1002 return 1;
1003 }
1004 return 0;
1005}
1006
1007static inline int libipw_is_cck_rate(u8 rate)
1008{
1009 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
1010 case LIBIPW_CCK_RATE_1MB:
1011 case LIBIPW_CCK_RATE_2MB:
1012 case LIBIPW_CCK_RATE_5MB:
1013 case LIBIPW_CCK_RATE_11MB:
1014 return 1;
1015 }
1016 return 0;
1017}
1018
1019/* libipw.c */
1020extern void free_libipw(struct net_device *dev, int monitor);
1021extern struct net_device *alloc_libipw(int sizeof_priv, int monitor);
1022extern int libipw_change_mtu(struct net_device *dev, int new_mtu);
1023
1024extern void libipw_networks_age(struct libipw_device *ieee,
1025 unsigned long age_secs);
1026
1027extern int libipw_set_encryption(struct libipw_device *ieee);
1028
1029/* libipw_tx.c */
1030extern netdev_tx_t libipw_xmit(struct sk_buff *skb,
1031 struct net_device *dev);
1032extern void libipw_txb_free(struct libipw_txb *);
1033
1034/* libipw_rx.c */
1035extern void libipw_rx_any(struct libipw_device *ieee,
1036 struct sk_buff *skb, struct libipw_rx_stats *stats);
1037extern int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
1038 struct libipw_rx_stats *rx_stats);
1039/* make sure to set stats->len */
1040extern void libipw_rx_mgt(struct libipw_device *ieee,
1041 struct libipw_hdr_4addr *header,
1042 struct libipw_rx_stats *stats);
1043extern void libipw_network_reset(struct libipw_network *network);
1044
1045/* libipw_geo.c */
1046extern const struct libipw_geo *libipw_get_geo(struct libipw_device
1047 *ieee);
1048extern int libipw_set_geo(struct libipw_device *ieee,
1049 const struct libipw_geo *geo);
1050
1051extern int libipw_is_valid_channel(struct libipw_device *ieee,
1052 u8 channel);
1053extern int libipw_channel_to_index(struct libipw_device *ieee,
1054 u8 channel);
1055extern u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
1056extern u8 libipw_get_channel_flags(struct libipw_device *ieee,
1057 u8 channel);
1058extern const struct libipw_channel *libipw_get_channel(struct
1059 libipw_device
1060 *ieee, u8 channel);
1061extern u32 libipw_channel_to_freq(struct libipw_device * ieee,
1062 u8 channel);
1063
1064/* libipw_wx.c */
1065extern int libipw_wx_get_scan(struct libipw_device *ieee,
1066 struct iw_request_info *info,
1067 union iwreq_data *wrqu, char *key);
1068extern int libipw_wx_set_encode(struct libipw_device *ieee,
1069 struct iw_request_info *info,
1070 union iwreq_data *wrqu, char *key);
1071extern int libipw_wx_get_encode(struct libipw_device *ieee,
1072 struct iw_request_info *info,
1073 union iwreq_data *wrqu, char *key);
1074extern int libipw_wx_set_encodeext(struct libipw_device *ieee,
1075 struct iw_request_info *info,
1076 union iwreq_data *wrqu, char *extra);
1077extern int libipw_wx_get_encodeext(struct libipw_device *ieee,
1078 struct iw_request_info *info,
1079 union iwreq_data *wrqu, char *extra);
1080
1081static inline void libipw_increment_scans(struct libipw_device *ieee)
1082{
1083 ieee->scans++;
1084}
1085
1086static inline int libipw_get_scans(struct libipw_device *ieee)
1087{
1088 return ieee->scans;
1089}
1090
1091#endif /* LIBIPW_H */