1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
4 * remains copyright by the original authors
5 *
6 * Portions of the merged code are based on Host AP (software wireless
7 * LAN access point) driver for Intersil Prism2/2.5/3.
8 *
9 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
10 * <j@w1.fi>
11 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
12 *
13 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
14 * <jketreno@linux.intel.com>
15 * Copyright (c) 2004-2005, Intel Corporation
16 *
17 * API Version History
18 * 1.0.x -- Initial version
19 * 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs,
20 * various structure changes, and crypto API init method
21 */
22 #ifndef LIBIPW_H
23 #define LIBIPW_H
24 #include <linux/if_ether.h> /* ETH_ALEN */
25 #include <linux/kernel.h> /* ARRAY_SIZE */
26 #include <linux/wireless.h>
27 #include <linux/ieee80211.h>
28
29 #include <net/lib80211.h>
30 #include <net/cfg80211.h>
31
32 #define LIBIPW_VERSION "git-1.1.13"
33
34 #define LIBIPW_DATA_LEN 2304
35 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
36 6.2.1.1.2.
37
38 The figure in section 7.1.2 suggests a body size of up to 2312
39 bytes is allowed, which is a bit confusing, I suspect this
40 represents the 2304 bytes of real data, plus a possible 8 bytes of
41 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
42
43 #define LIBIPW_1ADDR_LEN 10
44 #define LIBIPW_2ADDR_LEN 16
45 #define LIBIPW_3ADDR_LEN 24
46 #define LIBIPW_4ADDR_LEN 30
47 #define LIBIPW_FCS_LEN 4
48 #define LIBIPW_HLEN (LIBIPW_4ADDR_LEN)
49 #define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN)
50
51 #define MIN_FRAG_THRESHOLD 256U
52 #define MAX_FRAG_THRESHOLD 2346U
53
54 /* QOS control */
55 #define LIBIPW_QCTL_TID 0x000F
56
57 /* debug macros */
58
59 #ifdef CONFIG_LIBIPW_DEBUG
60 extern u32 libipw_debug_level;
61 #define LIBIPW_DEBUG(level, fmt, args...) \
62 do { if (libipw_debug_level & (level)) \
63 printk(KERN_DEBUG "libipw: %s " fmt, __func__ , ## args); } while (0)
64 #else
65 #define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)
66 #endif /* CONFIG_LIBIPW_DEBUG */
67
68 /*
69 * To use the debug system:
70 *
71 * If you are defining a new debug classification, simply add it to the #define
72 * list here in the form of:
73 *
74 * #define LIBIPW_DL_xxxx VALUE
75 *
76 * shifting value to the left one bit from the previous entry. xxxx should be
77 * the name of the classification (for example, WEP)
78 *
79 * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your
80 * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want
81 * to send output to that classification.
82 *
83 * To add your debug level to the list of levels seen when you perform
84 *
85 * % cat /proc/net/ieee80211/debug_level
86 *
87 * you simply need to add your entry to the libipw_debug_level array.
88 *
89 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
90 * CONFIG_LIBIPW_DEBUG defined in your kernel configuration
91 *
92 */
93
94 #define LIBIPW_DL_INFO (1<<0)
95 #define LIBIPW_DL_WX (1<<1)
96 #define LIBIPW_DL_SCAN (1<<2)
97 #define LIBIPW_DL_STATE (1<<3)
98 #define LIBIPW_DL_MGMT (1<<4)
99 #define LIBIPW_DL_FRAG (1<<5)
100 #define LIBIPW_DL_DROP (1<<7)
101
102 #define LIBIPW_DL_TX (1<<8)
103 #define LIBIPW_DL_RX (1<<9)
104 #define LIBIPW_DL_QOS (1<<31)
105
106 #define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)
107 #define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)
108 #define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)
109
110 #define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)
111 #define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)
112 #define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)
113 #define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)
114 #define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)
115 #define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)
116 #define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)
117 #define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)
118 #define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
119 #include <linux/netdevice.h>
120 #include <linux/if_arp.h> /* ARPHRD_ETHER */
121
122 #ifndef WIRELESS_SPY
123 #define WIRELESS_SPY /* enable iwspy support */
124 #endif
125 #include <net/iw_handler.h> /* new driver API */
126
127 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
128
129 #ifndef ETH_P_80211_RAW
130 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
131 #endif
132
133 /* IEEE 802.11 defines */
134
135 #define P80211_OUI_LEN 3
136
137 struct libipw_snap_hdr {
138
139 u8 dsap; /* always 0xAA */
140 u8 ssap; /* always 0xAA */
141 u8 ctrl; /* always 0x03 */
142 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
143
144 } __packed;
145
146 #define SNAP_SIZE sizeof(struct libipw_snap_hdr)
147
148 #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
149 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
150 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
151
152 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
153 #define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
154
155 #define LIBIPW_STATMASK_SIGNAL (1<<0)
156 #define LIBIPW_STATMASK_RSSI (1<<1)
157 #define LIBIPW_STATMASK_NOISE (1<<2)
158 #define LIBIPW_STATMASK_RATE (1<<3)
159 #define LIBIPW_STATMASK_WEMASK 0x7
160
161 #define LIBIPW_CCK_MODULATION (1<<0)
162 #define LIBIPW_OFDM_MODULATION (1<<1)
163
164 #define LIBIPW_24GHZ_BAND (1<<0)
165 #define LIBIPW_52GHZ_BAND (1<<1)
166
167 #define LIBIPW_CCK_RATE_1MB 0x02
168 #define LIBIPW_CCK_RATE_2MB 0x04
169 #define LIBIPW_CCK_RATE_5MB 0x0B
170 #define LIBIPW_CCK_RATE_11MB 0x16
171 #define LIBIPW_OFDM_RATE_6MB 0x0C
172 #define LIBIPW_OFDM_RATE_9MB 0x12
173 #define LIBIPW_OFDM_RATE_12MB 0x18
174 #define LIBIPW_OFDM_RATE_18MB 0x24
175 #define LIBIPW_OFDM_RATE_24MB 0x30
176 #define LIBIPW_OFDM_RATE_36MB 0x48
177 #define LIBIPW_OFDM_RATE_48MB 0x60
178 #define LIBIPW_OFDM_RATE_54MB 0x6C
179 #define LIBIPW_BASIC_RATE_MASK 0x80
180
181 #define LIBIPW_CCK_RATE_1MB_MASK (1<<0)
182 #define LIBIPW_CCK_RATE_2MB_MASK (1<<1)
183 #define LIBIPW_CCK_RATE_5MB_MASK (1<<2)
184 #define LIBIPW_CCK_RATE_11MB_MASK (1<<3)
185 #define LIBIPW_OFDM_RATE_6MB_MASK (1<<4)
186 #define LIBIPW_OFDM_RATE_9MB_MASK (1<<5)
187 #define LIBIPW_OFDM_RATE_12MB_MASK (1<<6)
188 #define LIBIPW_OFDM_RATE_18MB_MASK (1<<7)
189 #define LIBIPW_OFDM_RATE_24MB_MASK (1<<8)
190 #define LIBIPW_OFDM_RATE_36MB_MASK (1<<9)
191 #define LIBIPW_OFDM_RATE_48MB_MASK (1<<10)
192 #define LIBIPW_OFDM_RATE_54MB_MASK (1<<11)
193
194 #define LIBIPW_CCK_RATES_MASK 0x0000000F
195 #define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \
196 LIBIPW_CCK_RATE_2MB_MASK)
197 #define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \
198 LIBIPW_CCK_RATE_5MB_MASK | \
199 LIBIPW_CCK_RATE_11MB_MASK)
200
201 #define LIBIPW_OFDM_RATES_MASK 0x00000FF0
202 #define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \
203 LIBIPW_OFDM_RATE_12MB_MASK | \
204 LIBIPW_OFDM_RATE_24MB_MASK)
205 #define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \
206 LIBIPW_OFDM_RATE_9MB_MASK | \
207 LIBIPW_OFDM_RATE_18MB_MASK | \
208 LIBIPW_OFDM_RATE_36MB_MASK | \
209 LIBIPW_OFDM_RATE_48MB_MASK | \
210 LIBIPW_OFDM_RATE_54MB_MASK)
211 #define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
212 LIBIPW_CCK_DEFAULT_RATES_MASK)
213
214 #define LIBIPW_NUM_OFDM_RATES 8
215 #define LIBIPW_NUM_CCK_RATES 4
216 #define LIBIPW_OFDM_SHIFT_MASK_A 4
217
218 /* NOTE: This data is for statistical purposes; not all hardware provides this
219 * information for frames received.
220 * For libipw_rx_mgt, you need to set at least the 'len' parameter.
221 */
222 struct libipw_rx_stats {
223 u32 mac_time;
224 s8 rssi;
225 u8 signal;
226 u8 noise;
227 u16 rate; /* in 100 kbps */
228 u8 received_channel;
229 u8 control;
230 u8 mask;
231 u8 freq;
232 u16 len;
233 u64 tsf;
234 u32 beacon_time;
235 };
236
237 /* IEEE 802.11 requires that STA supports concurrent reception of at least
238 * three fragmented frames. This define can be increased to support more
239 * concurrent frames, but it should be noted that each entry can consume about
240 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
241 #define LIBIPW_FRAG_CACHE_LEN 4
242
243 struct libipw_frag_entry {
244 unsigned long first_frag_time;
245 unsigned int seq;
246 unsigned int last_frag;
247 struct sk_buff *skb;
248 u8 src_addr[ETH_ALEN];
249 u8 dst_addr[ETH_ALEN];
250 };
251
252 struct libipw_stats {
253 unsigned int tx_unicast_frames;
254 unsigned int tx_multicast_frames;
255 unsigned int tx_fragments;
256 unsigned int tx_unicast_octets;
257 unsigned int tx_multicast_octets;
258 unsigned int tx_deferred_transmissions;
259 unsigned int tx_single_retry_frames;
260 unsigned int tx_multiple_retry_frames;
261 unsigned int tx_retry_limit_exceeded;
262 unsigned int tx_discards;
263 unsigned int rx_unicast_frames;
264 unsigned int rx_multicast_frames;
265 unsigned int rx_fragments;
266 unsigned int rx_unicast_octets;
267 unsigned int rx_multicast_octets;
268 unsigned int rx_fcs_errors;
269 unsigned int rx_discards_no_buffer;
270 unsigned int tx_discards_wrong_sa;
271 unsigned int rx_discards_undecryptable;
272 unsigned int rx_message_in_msg_fragments;
273 unsigned int rx_message_in_bad_msg_fragments;
274 };
275
276 struct libipw_device;
277
278 #define SEC_KEY_1 (1<<0)
279 #define SEC_KEY_2 (1<<1)
280 #define SEC_KEY_3 (1<<2)
281 #define SEC_KEY_4 (1<<3)
282 #define SEC_ACTIVE_KEY (1<<4)
283 #define SEC_AUTH_MODE (1<<5)
284 #define SEC_UNICAST_GROUP (1<<6)
285 #define SEC_LEVEL (1<<7)
286 #define SEC_ENABLED (1<<8)
287 #define SEC_ENCRYPT (1<<9)
288
289 #define SEC_LEVEL_0 0 /* None */
290 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
291 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
292 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
293 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
294
295 #define SEC_ALG_NONE 0
296 #define SEC_ALG_WEP 1
297 #define SEC_ALG_TKIP 2
298 #define SEC_ALG_CCMP 3
299
300 #define WEP_KEYS 4
301 #define WEP_KEY_LEN 13
302 #define SCM_KEY_LEN 32
303 #define SCM_TEMPORAL_KEY_LENGTH 16
304
305 struct libipw_security {
306 u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
307 u8 auth_mode;
308 u8 encode_alg[WEP_KEYS];
309 u8 key_sizes[WEP_KEYS];
310 u8 keys[WEP_KEYS][SCM_KEY_LEN];
311 u8 level;
312 u16 flags;
313 } __packed;
314
315 /*
316
317 802.11 data frame from AP
318
319 ,-------------------------------------------------------------------.
320 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
321 |------|------|---------|---------|---------|------|---------|------|
322 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
323 | | tion | (BSSID) | | | ence | data | |
324 `-------------------------------------------------------------------'
325
326 Total: 28-2340 bytes
327
328 */
329
330 #define BEACON_PROBE_SSID_ID_POSITION 12
331
332 struct libipw_hdr_1addr {
333 __le16 frame_ctl;
334 __le16 duration_id;
335 u8 addr1[ETH_ALEN];
336 u8 payload[];
337 } __packed;
338
339 struct libipw_hdr_2addr {
340 __le16 frame_ctl;
341 __le16 duration_id;
342 u8 addr1[ETH_ALEN];
343 u8 addr2[ETH_ALEN];
344 u8 payload[];
345 } __packed;
346
347 struct libipw_hdr_3addr {
348 __le16 frame_ctl;
349 __le16 duration_id;
350 u8 addr1[ETH_ALEN];
351 u8 addr2[ETH_ALEN];
352 u8 addr3[ETH_ALEN];
353 __le16 seq_ctl;
354 u8 payload[];
355 } __packed;
356
357 struct libipw_hdr_4addr {
358 __le16 frame_ctl;
359 __le16 duration_id;
360 u8 addr1[ETH_ALEN];
361 u8 addr2[ETH_ALEN];
362 u8 addr3[ETH_ALEN];
363 __le16 seq_ctl;
364 u8 addr4[ETH_ALEN];
365 u8 payload[];
366 } __packed;
367
368 struct libipw_hdr_3addrqos {
369 __le16 frame_ctl;
370 __le16 duration_id;
371 u8 addr1[ETH_ALEN];
372 u8 addr2[ETH_ALEN];
373 u8 addr3[ETH_ALEN];
374 __le16 seq_ctl;
375 u8 payload[0];
376 __le16 qos_ctl;
377 } __packed;
378
379 struct libipw_info_element {
380 u8 id;
381 u8 len;
382 u8 data[];
383 } __packed;
384
385 /*
386 * These are the data types that can make up management packets
387 *
388 u16 auth_algorithm;
389 u16 auth_sequence;
390 u16 beacon_interval;
391 u16 capability;
392 u8 current_ap[ETH_ALEN];
393 u16 listen_interval;
394 struct {
395 u16 association_id:14, reserved:2;
396 } __packed;
397 u32 time_stamp[2];
398 u16 reason;
399 u16 status;
400 */
401
402 struct libipw_auth {
403 struct libipw_hdr_3addr header;
404 __le16 algorithm;
405 __le16 transaction;
406 __le16 status;
407 /* challenge */
408 u8 variable[];
409 } __packed;
410
411 struct libipw_channel_switch {
412 u8 id;
413 u8 len;
414 u8 mode;
415 u8 channel;
416 u8 count;
417 } __packed;
418
419 struct libipw_action {
420 struct libipw_hdr_3addr header;
421 u8 category;
422 u8 action;
423 union {
424 struct libipw_action_exchange {
425 u8 token;
426 } exchange;
427 struct libipw_channel_switch channel_switch;
428
429 } format;
430 } __packed;
431
432 struct libipw_disassoc {
433 struct libipw_hdr_3addr header;
434 __le16 reason;
435 } __packed;
436
437 /* Alias deauth for disassoc */
438 #define libipw_deauth libipw_disassoc
439
440 struct libipw_probe_request {
441 struct libipw_hdr_3addr header;
442 /* SSID, supported rates */
443 u8 variable[];
444 } __packed;
445
446 struct libipw_probe_response {
447 struct libipw_hdr_3addr header;
448 __le32 time_stamp[2];
449 __le16 beacon_interval;
450 __le16 capability;
451 /* SSID, supported rates, FH params, DS params,
452 * CF params, IBSS params, TIM (if beacon), RSN */
453 u8 variable[];
454 } __packed;
455
456 /* Alias beacon for probe_response */
457 #define libipw_beacon libipw_probe_response
458
459 struct libipw_assoc_request {
460 struct libipw_hdr_3addr header;
461 __le16 capability;
462 __le16 listen_interval;
463 /* SSID, supported rates, RSN */
464 u8 variable[];
465 } __packed;
466
467 struct libipw_reassoc_request {
468 struct libipw_hdr_3addr header;
469 __le16 capability;
470 __le16 listen_interval;
471 u8 current_ap[ETH_ALEN];
472 u8 variable[];
473 } __packed;
474
475 struct libipw_assoc_response {
476 struct libipw_hdr_3addr header;
477 __le16 capability;
478 __le16 status;
479 __le16 aid;
480 /* supported rates */
481 u8 variable[];
482 } __packed;
483
484 struct libipw_txb {
485 u8 nr_frags;
486 u8 encrypted;
487 u8 rts_included;
488 u8 reserved;
489 u16 frag_size;
490 u16 payload_size;
491 struct sk_buff *fragments[];
492 };
493
494 /* SWEEP TABLE ENTRIES NUMBER */
495 #define MAX_SWEEP_TAB_ENTRIES 42
496 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
497 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
498 * only use 8, and then use extended rates for the remaining supported
499 * rates. Other APs, however, stick all of their supported rates on the
500 * main rates information element... */
501 #define MAX_RATES_LENGTH ((u8)12)
502 #define MAX_RATES_EX_LENGTH ((u8)16)
503 #define MAX_NETWORK_COUNT 128
504
505 #define CRC_LENGTH 4U
506
507 #define MAX_WPA_IE_LEN 64
508
509 #define NETWORK_HAS_OFDM (1<<1)
510 #define NETWORK_HAS_CCK (1<<2)
511
512 /* QoS structure */
513 #define NETWORK_HAS_QOS_PARAMETERS (1<<3)
514 #define NETWORK_HAS_QOS_INFORMATION (1<<4)
515 #define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \
516 NETWORK_HAS_QOS_INFORMATION)
517
518 /* 802.11h */
519 #define NETWORK_HAS_POWER_CONSTRAINT (1<<5)
520 #define NETWORK_HAS_CSA (1<<6)
521 #define NETWORK_HAS_QUIET (1<<7)
522 #define NETWORK_HAS_IBSS_DFS (1<<8)
523 #define NETWORK_HAS_TPC_REPORT (1<<9)
524
525 #define NETWORK_HAS_ERP_VALUE (1<<10)
526
527 #define QOS_QUEUE_NUM 4
528 #define QOS_OUI_LEN 3
529 #define QOS_OUI_TYPE 2
530 #define QOS_ELEMENT_ID 221
531 #define QOS_OUI_INFO_SUB_TYPE 0
532 #define QOS_OUI_PARAM_SUB_TYPE 1
533 #define QOS_VERSION_1 1
534 #define QOS_AIFSN_MIN_VALUE 2
535
536 struct libipw_qos_information_element {
537 u8 elementID;
538 u8 length;
539 u8 qui[QOS_OUI_LEN];
540 u8 qui_type;
541 u8 qui_subtype;
542 u8 version;
543 u8 ac_info;
544 } __packed;
545
546 struct libipw_qos_ac_parameter {
547 u8 aci_aifsn;
548 u8 ecw_min_max;
549 __le16 tx_op_limit;
550 } __packed;
551
552 struct libipw_qos_parameter_info {
553 struct libipw_qos_information_element info_element;
554 u8 reserved;
555 struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
556 } __packed;
557
558 struct libipw_qos_parameters {
559 __le16 cw_min[QOS_QUEUE_NUM];
560 __le16 cw_max[QOS_QUEUE_NUM];
561 u8 aifs[QOS_QUEUE_NUM];
562 u8 flag[QOS_QUEUE_NUM];
563 __le16 tx_op_limit[QOS_QUEUE_NUM];
564 } __packed;
565
566 struct libipw_qos_data {
567 struct libipw_qos_parameters parameters;
568 int active;
569 int supported;
570 u8 param_count;
571 u8 old_param_count;
572 };
573
574 struct libipw_tim_parameters {
575 u8 tim_count;
576 u8 tim_period;
577 } __packed;
578
579 /*******************************************************/
580
581 struct libipw_tpc_report {
582 u8 transmit_power;
583 u8 link_margin;
584 } __packed;
585
586 struct libipw_channel_map {
587 u8 channel;
588 u8 map;
589 } __packed;
590
591 struct libipw_ibss_dfs {
592 struct libipw_info_element ie;
593 u8 owner[ETH_ALEN];
594 u8 recovery_interval;
595 struct libipw_channel_map channel_map[];
596 };
597
598 struct libipw_csa {
599 u8 mode;
600 u8 channel;
601 u8 count;
602 } __packed;
603
604 struct libipw_quiet {
605 u8 count;
606 u8 period;
607 u8 duration;
608 u8 offset;
609 } __packed;
610
611 struct libipw_network {
612 /* These entries are used to identify a unique network */
613 u8 bssid[ETH_ALEN];
614 u8 channel;
615 /* Ensure null-terminated for any debug msgs */
616 u8 ssid[IW_ESSID_MAX_SIZE + 1];
617 u8 ssid_len;
618
619 struct libipw_qos_data qos_data;
620
621 /* These are network statistics */
622 struct libipw_rx_stats stats;
623 u16 capability;
624 u8 rates[MAX_RATES_LENGTH];
625 u8 rates_len;
626 u8 rates_ex[MAX_RATES_EX_LENGTH];
627 u8 rates_ex_len;
628 unsigned long last_scanned;
629 u8 mode;
630 u32 flags;
631 u32 last_associate;
632 u32 time_stamp[2];
633 u16 beacon_interval;
634 u16 listen_interval;
635 u16 atim_window;
636 u8 erp_value;
637 u8 wpa_ie[MAX_WPA_IE_LEN];
638 size_t wpa_ie_len;
639 u8 rsn_ie[MAX_WPA_IE_LEN];
640 size_t rsn_ie_len;
641 struct libipw_tim_parameters tim;
642
643 /* 802.11h info */
644
645 /* Power Constraint - mandatory if spctrm mgmt required */
646 u8 power_constraint;
647
648 /* TPC Report - mandatory if spctrm mgmt required */
649 struct libipw_tpc_report tpc_report;
650
651 /* Channel Switch Announcement - optional if spctrm mgmt required */
652 struct libipw_csa csa;
653
654 /* Quiet - optional if spctrm mgmt required */
655 struct libipw_quiet quiet;
656
657 struct list_head list;
658 };
659
660 enum libipw_state {
661 LIBIPW_UNINITIALIZED = 0,
662 LIBIPW_INITIALIZED,
663 LIBIPW_ASSOCIATING,
664 LIBIPW_ASSOCIATED,
665 LIBIPW_AUTHENTICATING,
666 LIBIPW_AUTHENTICATED,
667 LIBIPW_SHUTDOWN
668 };
669
670 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
671 #define DEFAULT_FTS 2346
672
673 #define CFG_LIBIPW_RESERVE_FCS (1<<0)
674 #define CFG_LIBIPW_COMPUTE_FCS (1<<1)
675 #define CFG_LIBIPW_RTS (1<<2)
676
677 #define LIBIPW_24GHZ_MIN_CHANNEL 1
678 #define LIBIPW_24GHZ_MAX_CHANNEL 14
679 #define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \
680 LIBIPW_24GHZ_MIN_CHANNEL + 1)
681
682 #define LIBIPW_52GHZ_MIN_CHANNEL 34
683 #define LIBIPW_52GHZ_MAX_CHANNEL 165
684 #define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \
685 LIBIPW_52GHZ_MIN_CHANNEL + 1)
686
687 enum {
688 LIBIPW_CH_PASSIVE_ONLY = (1 << 0),
689 LIBIPW_CH_80211H_RULES = (1 << 1),
690 LIBIPW_CH_B_ONLY = (1 << 2),
691 LIBIPW_CH_NO_IBSS = (1 << 3),
692 LIBIPW_CH_UNIFORM_SPREADING = (1 << 4),
693 LIBIPW_CH_RADAR_DETECT = (1 << 5),
694 LIBIPW_CH_INVALID = (1 << 6),
695 };
696
697 struct libipw_channel {
698 u32 freq; /* in MHz */
699 u8 channel;
700 u8 flags;
701 u8 max_power; /* in dBm */
702 };
703
704 struct libipw_geo {
705 u8 name[4];
706 u8 bg_channels;
707 u8 a_channels;
708 struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];
709 struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];
710 };
711
712 struct libipw_device {
713 struct net_device *dev;
714 struct wireless_dev wdev;
715 struct libipw_security sec;
716
717 /* Bookkeeping structures */
718 struct libipw_stats ieee_stats;
719
720 struct libipw_geo geo;
721 struct ieee80211_supported_band bg_band;
722 struct ieee80211_supported_band a_band;
723
724 /* Probe / Beacon management */
725 struct list_head network_free_list;
726 struct list_head network_list;
727 struct libipw_network *networks[MAX_NETWORK_COUNT];
728 int scans;
729 int scan_age;
730
731 int iw_mode; /* operating mode (IW_MODE_*) */
732 struct iw_spy_data spy_data; /* iwspy support */
733
734 spinlock_t lock;
735
736 int tx_headroom; /* Set to size of any additional room needed at front
737 * of allocated Tx SKBs */
738 u32 config;
739
740 /* WEP and other encryption related settings at the device level */
741 int open_wep; /* Set to 1 to allow unencrypted frames */
742
743 /* If the host performs {en,de}cryption, then set to 1 */
744 int host_encrypt;
745 int host_encrypt_msdu;
746 int host_decrypt;
747 /* host performs multicast decryption */
748 int host_mc_decrypt;
749
750 /* host should strip IV and ICV from protected frames */
751 /* meaningful only when hardware decryption is being used */
752 int host_strip_iv_icv;
753
754 int host_open_frag;
755 int ieee802_1x; /* is IEEE 802.1X used */
756
757 /* WPA data */
758 int wpa_enabled;
759 int drop_unencrypted;
760 int privacy_invoked;
761 size_t wpa_ie_len;
762 u8 *wpa_ie;
763
764 struct lib80211_crypt_info crypt_info;
765
766 int bcrx_sta_key; /* use individual keys to override default keys even
767 * with RX of broad/multicast frames */
768
769 /* Fragmentation structures */
770 struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];
771 unsigned int frag_next_idx;
772 u16 fts; /* Fragmentation Threshold */
773 u16 rts; /* RTS threshold */
774
775 /* Association info */
776 u8 bssid[ETH_ALEN];
777
778 enum libipw_state state;
779
780 int mode; /* A, B, G */
781 int modulation; /* CCK, OFDM */
782 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
783 int abg_true; /* ABG flag */
784
785 int perfect_rssi;
786 int worst_rssi;
787
788 u16 prev_seq_ctl; /* used to drop duplicate frames */
789
790 /* Callback functions */
791 void (*set_security) (struct net_device * dev,
792 struct libipw_security * sec);
793 netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,
794 struct net_device * dev, int pri);
795 int (*is_queue_full) (struct net_device * dev, int pri);
796
797 int (*handle_management) (struct net_device * dev,
798 struct libipw_network * network, u16 type);
799 int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
800
801 /* Typical STA methods */
802 int (*handle_auth) (struct net_device * dev,
803 struct libipw_auth * auth);
804 int (*handle_deauth) (struct net_device * dev,
805 struct libipw_deauth * auth);
806 int (*handle_action) (struct net_device * dev,
807 struct libipw_action * action,
808 struct libipw_rx_stats * stats);
809 int (*handle_disassoc) (struct net_device * dev,
810 struct libipw_disassoc * assoc);
811 int (*handle_beacon) (struct net_device * dev,
812 struct libipw_beacon * beacon,
813 struct libipw_network * network);
814 int (*handle_probe_response) (struct net_device * dev,
815 struct libipw_probe_response * resp,
816 struct libipw_network * network);
817 int (*handle_probe_request) (struct net_device * dev,
818 struct libipw_probe_request * req,
819 struct libipw_rx_stats * stats);
820 int (*handle_assoc_response) (struct net_device * dev,
821 struct libipw_assoc_response * resp,
822 struct libipw_network * network);
823
824 /* Typical AP methods */
825 int (*handle_assoc_request) (struct net_device * dev);
826 int (*handle_reassoc_request) (struct net_device * dev,
827 struct libipw_reassoc_request * req);
828
829 /* This must be the last item so that it points to the data
830 * allocated beyond this structure by alloc_libipw */
831 u8 priv[];
832 };
833
834 #define IEEE_A (1<<0)
835 #define IEEE_B (1<<1)
836 #define IEEE_G (1<<2)
837 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
838
libipw_priv(struct net_device * dev)839 static inline void *libipw_priv(struct net_device *dev)
840 {
841 return ((struct libipw_device *)netdev_priv(dev))->priv;
842 }
843
libipw_is_valid_mode(struct libipw_device * ieee,int mode)844 static inline int libipw_is_valid_mode(struct libipw_device *ieee,
845 int mode)
846 {
847 /*
848 * It is possible for both access points and our device to support
849 * combinations of modes, so as long as there is one valid combination
850 * of ap/device supported modes, then return success
851 *
852 */
853 if ((mode & IEEE_A) &&
854 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
855 (ieee->freq_band & LIBIPW_52GHZ_BAND))
856 return 1;
857
858 if ((mode & IEEE_G) &&
859 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
860 (ieee->freq_band & LIBIPW_24GHZ_BAND))
861 return 1;
862
863 if ((mode & IEEE_B) &&
864 (ieee->modulation & LIBIPW_CCK_MODULATION) &&
865 (ieee->freq_band & LIBIPW_24GHZ_BAND))
866 return 1;
867
868 return 0;
869 }
870
libipw_get_hdrlen(u16 fc)871 static inline int libipw_get_hdrlen(u16 fc)
872 {
873 int hdrlen = LIBIPW_3ADDR_LEN;
874 u16 stype = WLAN_FC_GET_STYPE(fc);
875
876 switch (WLAN_FC_GET_TYPE(fc)) {
877 case IEEE80211_FTYPE_DATA:
878 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
879 hdrlen = LIBIPW_4ADDR_LEN;
880 if (stype & IEEE80211_STYPE_QOS_DATA)
881 hdrlen += 2;
882 break;
883 case IEEE80211_FTYPE_CTL:
884 switch (WLAN_FC_GET_STYPE(fc)) {
885 case IEEE80211_STYPE_CTS:
886 case IEEE80211_STYPE_ACK:
887 hdrlen = LIBIPW_1ADDR_LEN;
888 break;
889 default:
890 hdrlen = LIBIPW_2ADDR_LEN;
891 break;
892 }
893 break;
894 }
895
896 return hdrlen;
897 }
898
libipw_get_payload(struct ieee80211_hdr * hdr)899 static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr)
900 {
901 switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
902 case LIBIPW_1ADDR_LEN:
903 return ((struct libipw_hdr_1addr *)hdr)->payload;
904 case LIBIPW_2ADDR_LEN:
905 return ((struct libipw_hdr_2addr *)hdr)->payload;
906 case LIBIPW_3ADDR_LEN:
907 return ((struct libipw_hdr_3addr *)hdr)->payload;
908 case LIBIPW_4ADDR_LEN:
909 return ((struct libipw_hdr_4addr *)hdr)->payload;
910 }
911 return NULL;
912 }
913
libipw_is_ofdm_rate(u8 rate)914 static inline int libipw_is_ofdm_rate(u8 rate)
915 {
916 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
917 case LIBIPW_OFDM_RATE_6MB:
918 case LIBIPW_OFDM_RATE_9MB:
919 case LIBIPW_OFDM_RATE_12MB:
920 case LIBIPW_OFDM_RATE_18MB:
921 case LIBIPW_OFDM_RATE_24MB:
922 case LIBIPW_OFDM_RATE_36MB:
923 case LIBIPW_OFDM_RATE_48MB:
924 case LIBIPW_OFDM_RATE_54MB:
925 return 1;
926 }
927 return 0;
928 }
929
libipw_is_cck_rate(u8 rate)930 static inline int libipw_is_cck_rate(u8 rate)
931 {
932 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
933 case LIBIPW_CCK_RATE_1MB:
934 case LIBIPW_CCK_RATE_2MB:
935 case LIBIPW_CCK_RATE_5MB:
936 case LIBIPW_CCK_RATE_11MB:
937 return 1;
938 }
939 return 0;
940 }
941
942 /* libipw.c */
943 void free_libipw(struct net_device *dev, int monitor);
944 struct net_device *alloc_libipw(int sizeof_priv, int monitor);
945
946 void libipw_networks_age(struct libipw_device *ieee, unsigned long age_secs);
947
948 int libipw_set_encryption(struct libipw_device *ieee);
949
950 /* libipw_tx.c */
951 netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev);
952 void libipw_txb_free(struct libipw_txb *);
953
954 /* libipw_rx.c */
955 void libipw_rx_any(struct libipw_device *ieee, struct sk_buff *skb,
956 struct libipw_rx_stats *stats);
957 int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
958 struct libipw_rx_stats *rx_stats);
959 /* make sure to set stats->len */
960 void libipw_rx_mgt(struct libipw_device *ieee, struct libipw_hdr_4addr *header,
961 struct libipw_rx_stats *stats);
962
963 /* libipw_geo.c */
964 const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee);
965 void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo);
966
967 int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel);
968 int libipw_channel_to_index(struct libipw_device *ieee, u8 channel);
969 u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
970 u8 libipw_get_channel_flags(struct libipw_device *ieee, u8 channel);
971 const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee,
972 u8 channel);
973 u32 libipw_channel_to_freq(struct libipw_device *ieee, u8 channel);
974
975 /* libipw_wx.c */
976 int libipw_wx_get_scan(struct libipw_device *ieee, struct iw_request_info *info,
977 union iwreq_data *wrqu, char *key);
978 int libipw_wx_set_encode(struct libipw_device *ieee,
979 struct iw_request_info *info, union iwreq_data *wrqu,
980 char *key);
981 int libipw_wx_get_encode(struct libipw_device *ieee,
982 struct iw_request_info *info, union iwreq_data *wrqu,
983 char *key);
984 int libipw_wx_set_encodeext(struct libipw_device *ieee,
985 struct iw_request_info *info,
986 union iwreq_data *wrqu, char *extra);
987 int libipw_wx_get_encodeext(struct libipw_device *ieee,
988 struct iw_request_info *info,
989 union iwreq_data *wrqu, char *extra);
990
libipw_increment_scans(struct libipw_device * ieee)991 static inline void libipw_increment_scans(struct libipw_device *ieee)
992 {
993 ieee->scans++;
994 }
995
libipw_get_scans(struct libipw_device * ieee)996 static inline int libipw_get_scans(struct libipw_device *ieee)
997 {
998 return ieee->scans;
999 }
1000
1001 #endif /* LIBIPW_H */
1002