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 (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 ; |
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 ; |
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 ; |
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 ; |
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 ; |
442 | /* SSID, supported rates */ |
443 | u8 variable[]; |
444 | } __packed; |
445 | |
446 | struct libipw_probe_response { |
447 | struct libipw_hdr_3addr ; |
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 ; |
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 ; |
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 ; |
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[] __counted_by(nr_frags); |
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 ; |
786 | int ; |
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 | |
839 | static inline void *libipw_priv(struct net_device *dev) |
840 | { |
841 | return ((struct libipw_device *)netdev_priv(dev))->priv; |
842 | } |
843 | |
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 | |
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 | |
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 | |
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 | |
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 *, |
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 *); |
987 | int libipw_wx_get_encodeext(struct libipw_device *ieee, |
988 | struct iw_request_info *info, |
989 | union iwreq_data *wrqu, char *); |
990 | |
991 | static inline void libipw_increment_scans(struct libipw_device *ieee) |
992 | { |
993 | ieee->scans++; |
994 | } |
995 | |
996 | static inline int libipw_get_scans(struct libipw_device *ieee) |
997 | { |
998 | return ieee->scans; |
999 | } |
1000 | |
1001 | #endif /* LIBIPW_H */ |
1002 | |