2 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
3 * remains copyright by the original authors
5 * Portions of the merged code are based on Host AP (software wireless
6 * LAN access point) driver for Intersil Prism2/2.5/3.
8 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
10 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
12 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
13 * <jketreno@linux.intel.com>
14 * Copyright (c) 2004-2005, Intel Corporation
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
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
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>
33 #include <net/lib80211.h>
35 #define LIBIPW_VERSION "git-1.1.13"
37 #define LIBIPW_DATA_LEN 2304
38 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
41 The figure in section 7.1.2 suggests a body size of up to 2312
42 bytes is allowed, which is a bit confusing, I suspect this
43 represents the 2304 bytes of real data, plus a possible 8 bytes of
44 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
46 #define LIBIPW_1ADDR_LEN 10
47 #define LIBIPW_2ADDR_LEN 16
48 #define LIBIPW_3ADDR_LEN 24
49 #define LIBIPW_4ADDR_LEN 30
50 #define LIBIPW_FCS_LEN 4
51 #define LIBIPW_HLEN (LIBIPW_4ADDR_LEN)
52 #define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN)
54 #define MIN_FRAG_THRESHOLD 256U
55 #define MAX_FRAG_THRESHOLD 2346U
58 #define LIBIPW_QCTL_TID 0x000F
62 #ifdef CONFIG_LIBIPW_DEBUG
63 extern u32 libipw_debug_level;
64 #define LIBIPW_DEBUG(level, fmt, args...) \
65 do { if (libipw_debug_level & (level)) \
66 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
67 in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
68 static inline bool libipw_ratelimit_debug(u32 level)
70 return (libipw_debug_level & level) && net_ratelimit();
73 #define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)
74 static inline bool libipw_ratelimit_debug(u32 level)
78 #endif /* CONFIG_LIBIPW_DEBUG */
81 * To use the debug system:
83 * If you are defining a new debug classification, simply add it to the #define
84 * list here in the form of:
86 * #define LIBIPW_DL_xxxx VALUE
88 * shifting value to the left one bit from the previous entry. xxxx should be
89 * the name of the classification (for example, WEP)
91 * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your
92 * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want
93 * to send output to that classification.
95 * To add your debug level to the list of levels seen when you perform
97 * % cat /proc/net/ieee80211/debug_level
99 * you simply need to add your entry to the libipw_debug_level array.
101 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
102 * CONFIG_LIBIPW_DEBUG defined in your kernel configuration
106 #define LIBIPW_DL_INFO (1<<0)
107 #define LIBIPW_DL_WX (1<<1)
108 #define LIBIPW_DL_SCAN (1<<2)
109 #define LIBIPW_DL_STATE (1<<3)
110 #define LIBIPW_DL_MGMT (1<<4)
111 #define LIBIPW_DL_FRAG (1<<5)
112 #define LIBIPW_DL_DROP (1<<7)
114 #define LIBIPW_DL_TX (1<<8)
115 #define LIBIPW_DL_RX (1<<9)
116 #define LIBIPW_DL_QOS (1<<31)
118 #define LIBIPW_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
119 #define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
120 #define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)
122 #define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)
123 #define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)
124 #define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)
125 #define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)
126 #define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)
127 #define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)
128 #define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)
129 #define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)
130 #define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
131 #include <linux/netdevice.h>
132 #include <linux/if_arp.h> /* ARPHRD_ETHER */
135 #define WIRELESS_SPY /* enable iwspy support */
137 #include <net/iw_handler.h> /* new driver API */
139 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
141 #ifndef ETH_P_80211_RAW
142 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
145 /* IEEE 802.11 defines */
147 #define P80211_OUI_LEN 3
149 struct libipw_snap_hdr {
151 u8 dsap; /* always 0xAA */
152 u8 ssap; /* always 0xAA */
153 u8 ctrl; /* always 0x03 */
154 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
156 } __attribute__ ((packed));
158 #define SNAP_SIZE sizeof(struct libipw_snap_hdr)
160 #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
161 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
162 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
164 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
165 #define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
167 #define LIBIPW_STATMASK_SIGNAL (1<<0)
168 #define LIBIPW_STATMASK_RSSI (1<<1)
169 #define LIBIPW_STATMASK_NOISE (1<<2)
170 #define LIBIPW_STATMASK_RATE (1<<3)
171 #define LIBIPW_STATMASK_WEMASK 0x7
173 #define LIBIPW_CCK_MODULATION (1<<0)
174 #define LIBIPW_OFDM_MODULATION (1<<1)
176 #define LIBIPW_24GHZ_BAND (1<<0)
177 #define LIBIPW_52GHZ_BAND (1<<1)
179 #define LIBIPW_CCK_RATE_1MB 0x02
180 #define LIBIPW_CCK_RATE_2MB 0x04
181 #define LIBIPW_CCK_RATE_5MB 0x0B
182 #define LIBIPW_CCK_RATE_11MB 0x16
183 #define LIBIPW_OFDM_RATE_6MB 0x0C
184 #define LIBIPW_OFDM_RATE_9MB 0x12
185 #define LIBIPW_OFDM_RATE_12MB 0x18
186 #define LIBIPW_OFDM_RATE_18MB 0x24
187 #define LIBIPW_OFDM_RATE_24MB 0x30
188 #define LIBIPW_OFDM_RATE_36MB 0x48
189 #define LIBIPW_OFDM_RATE_48MB 0x60
190 #define LIBIPW_OFDM_RATE_54MB 0x6C
191 #define LIBIPW_BASIC_RATE_MASK 0x80
193 #define LIBIPW_CCK_RATE_1MB_MASK (1<<0)
194 #define LIBIPW_CCK_RATE_2MB_MASK (1<<1)
195 #define LIBIPW_CCK_RATE_5MB_MASK (1<<2)
196 #define LIBIPW_CCK_RATE_11MB_MASK (1<<3)
197 #define LIBIPW_OFDM_RATE_6MB_MASK (1<<4)
198 #define LIBIPW_OFDM_RATE_9MB_MASK (1<<5)
199 #define LIBIPW_OFDM_RATE_12MB_MASK (1<<6)
200 #define LIBIPW_OFDM_RATE_18MB_MASK (1<<7)
201 #define LIBIPW_OFDM_RATE_24MB_MASK (1<<8)
202 #define LIBIPW_OFDM_RATE_36MB_MASK (1<<9)
203 #define LIBIPW_OFDM_RATE_48MB_MASK (1<<10)
204 #define LIBIPW_OFDM_RATE_54MB_MASK (1<<11)
206 #define LIBIPW_CCK_RATES_MASK 0x0000000F
207 #define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \
208 LIBIPW_CCK_RATE_2MB_MASK)
209 #define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \
210 LIBIPW_CCK_RATE_5MB_MASK | \
211 LIBIPW_CCK_RATE_11MB_MASK)
213 #define LIBIPW_OFDM_RATES_MASK 0x00000FF0
214 #define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \
215 LIBIPW_OFDM_RATE_12MB_MASK | \
216 LIBIPW_OFDM_RATE_24MB_MASK)
217 #define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \
218 LIBIPW_OFDM_RATE_9MB_MASK | \
219 LIBIPW_OFDM_RATE_18MB_MASK | \
220 LIBIPW_OFDM_RATE_36MB_MASK | \
221 LIBIPW_OFDM_RATE_48MB_MASK | \
222 LIBIPW_OFDM_RATE_54MB_MASK)
223 #define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
224 LIBIPW_CCK_DEFAULT_RATES_MASK)
226 #define LIBIPW_NUM_OFDM_RATES 8
227 #define LIBIPW_NUM_CCK_RATES 4
228 #define LIBIPW_OFDM_SHIFT_MASK_A 4
230 /* NOTE: This data is for statistical purposes; not all hardware provides this
231 * information for frames received.
232 * For libipw_rx_mgt, you need to set at least the 'len' parameter.
234 struct libipw_rx_stats {
239 u16 rate; /* in 100 kbps */
249 /* IEEE 802.11 requires that STA supports concurrent reception of at least
250 * three fragmented frames. This define can be increased to support more
251 * concurrent frames, but it should be noted that each entry can consume about
252 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
253 #define LIBIPW_FRAG_CACHE_LEN 4
255 struct libipw_frag_entry {
256 unsigned long first_frag_time;
258 unsigned int last_frag;
260 u8 src_addr[ETH_ALEN];
261 u8 dst_addr[ETH_ALEN];
264 struct libipw_stats {
265 unsigned int tx_unicast_frames;
266 unsigned int tx_multicast_frames;
267 unsigned int tx_fragments;
268 unsigned int tx_unicast_octets;
269 unsigned int tx_multicast_octets;
270 unsigned int tx_deferred_transmissions;
271 unsigned int tx_single_retry_frames;
272 unsigned int tx_multiple_retry_frames;
273 unsigned int tx_retry_limit_exceeded;
274 unsigned int tx_discards;
275 unsigned int rx_unicast_frames;
276 unsigned int rx_multicast_frames;
277 unsigned int rx_fragments;
278 unsigned int rx_unicast_octets;
279 unsigned int rx_multicast_octets;
280 unsigned int rx_fcs_errors;
281 unsigned int rx_discards_no_buffer;
282 unsigned int tx_discards_wrong_sa;
283 unsigned int rx_discards_undecryptable;
284 unsigned int rx_message_in_msg_fragments;
285 unsigned int rx_message_in_bad_msg_fragments;
288 struct libipw_device;
290 #define SEC_KEY_1 (1<<0)
291 #define SEC_KEY_2 (1<<1)
292 #define SEC_KEY_3 (1<<2)
293 #define SEC_KEY_4 (1<<3)
294 #define SEC_ACTIVE_KEY (1<<4)
295 #define SEC_AUTH_MODE (1<<5)
296 #define SEC_UNICAST_GROUP (1<<6)
297 #define SEC_LEVEL (1<<7)
298 #define SEC_ENABLED (1<<8)
299 #define SEC_ENCRYPT (1<<9)
301 #define SEC_LEVEL_0 0 /* None */
302 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
303 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
304 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
305 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
307 #define SEC_ALG_NONE 0
308 #define SEC_ALG_WEP 1
309 #define SEC_ALG_TKIP 2
310 #define SEC_ALG_CCMP 3
313 #define WEP_KEY_LEN 13
314 #define SCM_KEY_LEN 32
315 #define SCM_TEMPORAL_KEY_LENGTH 16
317 struct libipw_security {
318 u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
320 u8 encode_alg[WEP_KEYS];
321 u8 key_sizes[WEP_KEYS];
322 u8 keys[WEP_KEYS][SCM_KEY_LEN];
325 } __attribute__ ((packed));
329 802.11 data frame from AP
331 ,-------------------------------------------------------------------.
332 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
333 |------|------|---------|---------|---------|------|---------|------|
334 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
335 | | tion | (BSSID) | | | ence | data | |
336 `-------------------------------------------------------------------'
342 #define BEACON_PROBE_SSID_ID_POSITION 12
344 struct libipw_hdr_1addr {
349 } __attribute__ ((packed));
351 struct libipw_hdr_2addr {
357 } __attribute__ ((packed));
359 struct libipw_hdr_3addr {
367 } __attribute__ ((packed));
369 struct libipw_hdr_4addr {
378 } __attribute__ ((packed));
380 struct libipw_hdr_3addrqos {
389 } __attribute__ ((packed));
391 struct libipw_info_element {
395 } __attribute__ ((packed));
398 * These are the data types that can make up management packets
404 u8 current_ap[ETH_ALEN];
407 u16 association_id:14, reserved:2;
408 } __attribute__ ((packed));
415 struct libipw_hdr_3addr header;
420 struct libipw_info_element info_element[0];
421 } __attribute__ ((packed));
423 struct libipw_channel_switch {
429 } __attribute__ ((packed));
431 struct libipw_action {
432 struct libipw_hdr_3addr header;
436 struct libipw_action_exchange {
438 struct libipw_info_element info_element[0];
440 struct libipw_channel_switch channel_switch;
443 } __attribute__ ((packed));
445 struct libipw_disassoc {
446 struct libipw_hdr_3addr header;
448 } __attribute__ ((packed));
450 /* Alias deauth for disassoc */
451 #define libipw_deauth libipw_disassoc
453 struct libipw_probe_request {
454 struct libipw_hdr_3addr header;
455 /* SSID, supported rates */
456 struct libipw_info_element info_element[0];
457 } __attribute__ ((packed));
459 struct libipw_probe_response {
460 struct libipw_hdr_3addr header;
461 __le32 time_stamp[2];
462 __le16 beacon_interval;
464 /* SSID, supported rates, FH params, DS params,
465 * CF params, IBSS params, TIM (if beacon), RSN */
466 struct libipw_info_element info_element[0];
467 } __attribute__ ((packed));
469 /* Alias beacon for probe_response */
470 #define libipw_beacon libipw_probe_response
472 struct libipw_assoc_request {
473 struct libipw_hdr_3addr header;
475 __le16 listen_interval;
476 /* SSID, supported rates, RSN */
477 struct libipw_info_element info_element[0];
478 } __attribute__ ((packed));
480 struct libipw_reassoc_request {
481 struct libipw_hdr_3addr header;
483 __le16 listen_interval;
484 u8 current_ap[ETH_ALEN];
485 struct libipw_info_element info_element[0];
486 } __attribute__ ((packed));
488 struct libipw_assoc_response {
489 struct libipw_hdr_3addr header;
493 /* supported rates */
494 struct libipw_info_element info_element[0];
495 } __attribute__ ((packed));
504 struct sk_buff *fragments[0];
507 /* SWEEP TABLE ENTRIES NUMBER */
508 #define MAX_SWEEP_TAB_ENTRIES 42
509 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
510 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
511 * only use 8, and then use extended rates for the remaining supported
512 * rates. Other APs, however, stick all of their supported rates on the
513 * main rates information element... */
514 #define MAX_RATES_LENGTH ((u8)12)
515 #define MAX_RATES_EX_LENGTH ((u8)16)
516 #define MAX_NETWORK_COUNT 128
518 #define CRC_LENGTH 4U
520 #define MAX_WPA_IE_LEN 64
522 #define NETWORK_HAS_OFDM (1<<1)
523 #define NETWORK_HAS_CCK (1<<2)
526 #define NETWORK_HAS_QOS_PARAMETERS (1<<3)
527 #define NETWORK_HAS_QOS_INFORMATION (1<<4)
528 #define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \
529 NETWORK_HAS_QOS_INFORMATION)
532 #define NETWORK_HAS_POWER_CONSTRAINT (1<<5)
533 #define NETWORK_HAS_CSA (1<<6)
534 #define NETWORK_HAS_QUIET (1<<7)
535 #define NETWORK_HAS_IBSS_DFS (1<<8)
536 #define NETWORK_HAS_TPC_REPORT (1<<9)
538 #define NETWORK_HAS_ERP_VALUE (1<<10)
540 #define QOS_QUEUE_NUM 4
541 #define QOS_OUI_LEN 3
542 #define QOS_OUI_TYPE 2
543 #define QOS_ELEMENT_ID 221
544 #define QOS_OUI_INFO_SUB_TYPE 0
545 #define QOS_OUI_PARAM_SUB_TYPE 1
546 #define QOS_VERSION_1 1
547 #define QOS_AIFSN_MIN_VALUE 2
549 struct libipw_qos_information_element {
557 } __attribute__ ((packed));
559 struct libipw_qos_ac_parameter {
563 } __attribute__ ((packed));
565 struct libipw_qos_parameter_info {
566 struct libipw_qos_information_element info_element;
568 struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
569 } __attribute__ ((packed));
571 struct libipw_qos_parameters {
572 __le16 cw_min[QOS_QUEUE_NUM];
573 __le16 cw_max[QOS_QUEUE_NUM];
574 u8 aifs[QOS_QUEUE_NUM];
575 u8 flag[QOS_QUEUE_NUM];
576 __le16 tx_op_limit[QOS_QUEUE_NUM];
577 } __attribute__ ((packed));
579 struct libipw_qos_data {
580 struct libipw_qos_parameters parameters;
587 struct libipw_tim_parameters {
590 } __attribute__ ((packed));
592 /*******************************************************/
594 enum { /* libipw_basic_report.map */
595 LIBIPW_BASIC_MAP_BSS = (1 << 0),
596 LIBIPW_BASIC_MAP_OFDM = (1 << 1),
597 LIBIPW_BASIC_MAP_UNIDENTIFIED = (1 << 2),
598 LIBIPW_BASIC_MAP_RADAR = (1 << 3),
599 LIBIPW_BASIC_MAP_UNMEASURED = (1 << 4),
600 /* Bits 5-7 are reserved */
603 struct libipw_basic_report {
608 } __attribute__ ((packed));
610 enum { /* libipw_measurement_request.mode */
611 /* Bit 0 is reserved */
612 LIBIPW_MEASUREMENT_ENABLE = (1 << 1),
613 LIBIPW_MEASUREMENT_REQUEST = (1 << 2),
614 LIBIPW_MEASUREMENT_REPORT = (1 << 3),
615 /* Bits 4-7 are reserved */
619 LIBIPW_REPORT_BASIC = 0, /* required */
620 LIBIPW_REPORT_CCA = 1, /* optional */
621 LIBIPW_REPORT_RPI = 2, /* optional */
625 struct libipw_measurement_params {
629 } __attribute__ ((packed));
631 struct libipw_measurement_request {
632 struct libipw_info_element ie;
636 struct libipw_measurement_params params[0];
637 } __attribute__ ((packed));
639 struct libipw_measurement_report {
640 struct libipw_info_element ie;
645 struct libipw_basic_report basic[0];
647 } __attribute__ ((packed));
649 struct libipw_tpc_report {
652 } __attribute__ ((packed));
654 struct libipw_channel_map {
657 } __attribute__ ((packed));
659 struct libipw_ibss_dfs {
660 struct libipw_info_element ie;
662 u8 recovery_interval;
663 struct libipw_channel_map channel_map[0];
670 } __attribute__ ((packed));
672 struct libipw_quiet {
677 } __attribute__ ((packed));
679 struct libipw_network {
680 /* These entries are used to identify a unique network */
683 /* Ensure null-terminated for any debug msgs */
684 u8 ssid[IW_ESSID_MAX_SIZE + 1];
687 struct libipw_qos_data qos_data;
689 /* These are network statistics */
690 struct libipw_rx_stats stats;
692 u8 rates[MAX_RATES_LENGTH];
694 u8 rates_ex[MAX_RATES_EX_LENGTH];
696 unsigned long last_scanned;
705 u8 wpa_ie[MAX_WPA_IE_LEN];
707 u8 rsn_ie[MAX_WPA_IE_LEN];
709 struct libipw_tim_parameters tim;
713 /* Power Constraint - mandatory if spctrm mgmt required */
716 /* TPC Report - mandatory if spctrm mgmt required */
717 struct libipw_tpc_report tpc_report;
719 /* IBSS DFS - mandatory if spctrm mgmt required and IBSS
720 * NOTE: This is variable length and so must be allocated dynamically */
721 struct libipw_ibss_dfs *ibss_dfs;
723 /* Channel Switch Announcement - optional if spctrm mgmt required */
724 struct libipw_csa csa;
726 /* Quiet - optional if spctrm mgmt required */
727 struct libipw_quiet quiet;
729 struct list_head list;
733 LIBIPW_UNINITIALIZED = 0,
737 LIBIPW_AUTHENTICATING,
738 LIBIPW_AUTHENTICATED,
742 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
743 #define DEFAULT_FTS 2346
745 #define CFG_LIBIPW_RESERVE_FCS (1<<0)
746 #define CFG_LIBIPW_COMPUTE_FCS (1<<1)
747 #define CFG_LIBIPW_RTS (1<<2)
749 #define LIBIPW_24GHZ_MIN_CHANNEL 1
750 #define LIBIPW_24GHZ_MAX_CHANNEL 14
751 #define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \
752 LIBIPW_24GHZ_MIN_CHANNEL + 1)
754 #define LIBIPW_52GHZ_MIN_CHANNEL 34
755 #define LIBIPW_52GHZ_MAX_CHANNEL 165
756 #define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \
757 LIBIPW_52GHZ_MIN_CHANNEL + 1)
760 LIBIPW_CH_PASSIVE_ONLY = (1 << 0),
761 LIBIPW_CH_80211H_RULES = (1 << 1),
762 LIBIPW_CH_B_ONLY = (1 << 2),
763 LIBIPW_CH_NO_IBSS = (1 << 3),
764 LIBIPW_CH_UNIFORM_SPREADING = (1 << 4),
765 LIBIPW_CH_RADAR_DETECT = (1 << 5),
766 LIBIPW_CH_INVALID = (1 << 6),
769 struct libipw_channel {
770 u32 freq; /* in MHz */
773 u8 max_power; /* in dBm */
780 struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];
781 struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];
784 struct libipw_device {
785 struct net_device *dev;
786 struct libipw_security sec;
788 /* Bookkeeping structures */
789 struct libipw_stats ieee_stats;
791 struct libipw_geo geo;
793 /* Probe / Beacon management */
794 struct list_head network_free_list;
795 struct list_head network_list;
796 struct libipw_network *networks;
800 int iw_mode; /* operating mode (IW_MODE_*) */
801 struct iw_spy_data spy_data; /* iwspy support */
805 int tx_headroom; /* Set to size of any additional room needed at front
806 * of allocated Tx SKBs */
809 /* WEP and other encryption related settings at the device level */
810 int open_wep; /* Set to 1 to allow unencrypted frames */
812 int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
815 /* If the host performs {en,de}cryption, then set to 1 */
817 int host_encrypt_msdu;
819 /* host performs multicast decryption */
822 /* host should strip IV and ICV from protected frames */
823 /* meaningful only when hardware decryption is being used */
824 int host_strip_iv_icv;
828 int ieee802_1x; /* is IEEE 802.1X used */
832 int drop_unencrypted;
837 struct lib80211_crypt_info crypt_info;
839 int bcrx_sta_key; /* use individual keys to override default keys even
840 * with RX of broad/multicast frames */
842 /* Fragmentation structures */
843 struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];
844 unsigned int frag_next_idx;
845 u16 fts; /* Fragmentation Threshold */
846 u16 rts; /* RTS threshold */
848 /* Association info */
851 enum libipw_state state;
853 int mode; /* A, B, G */
854 int modulation; /* CCK, OFDM */
855 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
856 int abg_true; /* ABG flag */
861 u16 prev_seq_ctl; /* used to drop duplicate frames */
863 /* Callback functions */
864 void (*set_security) (struct net_device * dev,
865 struct libipw_security * sec);
866 netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,
867 struct net_device * dev, int pri);
868 int (*reset_port) (struct net_device * dev);
869 int (*is_queue_full) (struct net_device * dev, int pri);
871 int (*handle_management) (struct net_device * dev,
872 struct libipw_network * network, u16 type);
873 int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
875 /* Typical STA methods */
876 int (*handle_auth) (struct net_device * dev,
877 struct libipw_auth * auth);
878 int (*handle_deauth) (struct net_device * dev,
879 struct libipw_deauth * auth);
880 int (*handle_action) (struct net_device * dev,
881 struct libipw_action * action,
882 struct libipw_rx_stats * stats);
883 int (*handle_disassoc) (struct net_device * dev,
884 struct libipw_disassoc * assoc);
885 int (*handle_beacon) (struct net_device * dev,
886 struct libipw_beacon * beacon,
887 struct libipw_network * network);
888 int (*handle_probe_response) (struct net_device * dev,
889 struct libipw_probe_response * resp,
890 struct libipw_network * network);
891 int (*handle_probe_request) (struct net_device * dev,
892 struct libipw_probe_request * req,
893 struct libipw_rx_stats * stats);
894 int (*handle_assoc_response) (struct net_device * dev,
895 struct libipw_assoc_response * resp,
896 struct libipw_network * network);
898 /* Typical AP methods */
899 int (*handle_assoc_request) (struct net_device * dev);
900 int (*handle_reassoc_request) (struct net_device * dev,
901 struct libipw_reassoc_request * req);
903 /* This must be the last item so that it points to the data
904 * allocated beyond this structure by alloc_ieee80211 */
908 #define IEEE_A (1<<0)
909 #define IEEE_B (1<<1)
910 #define IEEE_G (1<<2)
911 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
913 static inline void *libipw_priv(struct net_device *dev)
915 return ((struct libipw_device *)netdev_priv(dev))->priv;
918 static inline int libipw_is_valid_mode(struct libipw_device *ieee,
922 * It is possible for both access points and our device to support
923 * combinations of modes, so as long as there is one valid combination
924 * of ap/device supported modes, then return success
927 if ((mode & IEEE_A) &&
928 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
929 (ieee->freq_band & LIBIPW_52GHZ_BAND))
932 if ((mode & IEEE_G) &&
933 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
934 (ieee->freq_band & LIBIPW_24GHZ_BAND))
937 if ((mode & IEEE_B) &&
938 (ieee->modulation & LIBIPW_CCK_MODULATION) &&
939 (ieee->freq_band & LIBIPW_24GHZ_BAND))
945 static inline int libipw_get_hdrlen(u16 fc)
947 int hdrlen = LIBIPW_3ADDR_LEN;
948 u16 stype = WLAN_FC_GET_STYPE(fc);
950 switch (WLAN_FC_GET_TYPE(fc)) {
951 case IEEE80211_FTYPE_DATA:
952 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
953 hdrlen = LIBIPW_4ADDR_LEN;
954 if (stype & IEEE80211_STYPE_QOS_DATA)
957 case IEEE80211_FTYPE_CTL:
958 switch (WLAN_FC_GET_STYPE(fc)) {
959 case IEEE80211_STYPE_CTS:
960 case IEEE80211_STYPE_ACK:
961 hdrlen = LIBIPW_1ADDR_LEN;
964 hdrlen = LIBIPW_2ADDR_LEN;
973 static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr)
975 switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
976 case LIBIPW_1ADDR_LEN:
977 return ((struct libipw_hdr_1addr *)hdr)->payload;
978 case LIBIPW_2ADDR_LEN:
979 return ((struct libipw_hdr_2addr *)hdr)->payload;
980 case LIBIPW_3ADDR_LEN:
981 return ((struct libipw_hdr_3addr *)hdr)->payload;
982 case LIBIPW_4ADDR_LEN:
983 return ((struct libipw_hdr_4addr *)hdr)->payload;
988 static inline int libipw_is_ofdm_rate(u8 rate)
990 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
991 case LIBIPW_OFDM_RATE_6MB:
992 case LIBIPW_OFDM_RATE_9MB:
993 case LIBIPW_OFDM_RATE_12MB:
994 case LIBIPW_OFDM_RATE_18MB:
995 case LIBIPW_OFDM_RATE_24MB:
996 case LIBIPW_OFDM_RATE_36MB:
997 case LIBIPW_OFDM_RATE_48MB:
998 case LIBIPW_OFDM_RATE_54MB:
1004 static inline int libipw_is_cck_rate(u8 rate)
1006 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
1007 case LIBIPW_CCK_RATE_1MB:
1008 case LIBIPW_CCK_RATE_2MB:
1009 case LIBIPW_CCK_RATE_5MB:
1010 case LIBIPW_CCK_RATE_11MB:
1017 extern void free_ieee80211(struct net_device *dev);
1018 extern struct net_device *alloc_ieee80211(int sizeof_priv);
1019 extern int libipw_change_mtu(struct net_device *dev, int new_mtu);
1021 extern void libipw_networks_age(struct libipw_device *ieee,
1022 unsigned long age_secs);
1024 extern int libipw_set_encryption(struct libipw_device *ieee);
1027 extern netdev_tx_t libipw_xmit(struct sk_buff *skb,
1028 struct net_device *dev);
1029 extern void libipw_txb_free(struct libipw_txb *);
1032 extern void libipw_rx_any(struct libipw_device *ieee,
1033 struct sk_buff *skb, struct libipw_rx_stats *stats);
1034 extern int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
1035 struct libipw_rx_stats *rx_stats);
1036 /* make sure to set stats->len */
1037 extern void libipw_rx_mgt(struct libipw_device *ieee,
1038 struct libipw_hdr_4addr *header,
1039 struct libipw_rx_stats *stats);
1040 extern void libipw_network_reset(struct libipw_network *network);
1043 extern const struct libipw_geo *libipw_get_geo(struct libipw_device
1045 extern int libipw_set_geo(struct libipw_device *ieee,
1046 const struct libipw_geo *geo);
1048 extern int libipw_is_valid_channel(struct libipw_device *ieee,
1050 extern int libipw_channel_to_index(struct libipw_device *ieee,
1052 extern u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
1053 extern u8 libipw_get_channel_flags(struct libipw_device *ieee,
1055 extern const struct libipw_channel *libipw_get_channel(struct
1058 extern u32 libipw_channel_to_freq(struct libipw_device * ieee,
1062 extern int libipw_wx_get_scan(struct libipw_device *ieee,
1063 struct iw_request_info *info,
1064 union iwreq_data *wrqu, char *key);
1065 extern int libipw_wx_set_encode(struct libipw_device *ieee,
1066 struct iw_request_info *info,
1067 union iwreq_data *wrqu, char *key);
1068 extern int libipw_wx_get_encode(struct libipw_device *ieee,
1069 struct iw_request_info *info,
1070 union iwreq_data *wrqu, char *key);
1071 extern int libipw_wx_set_encodeext(struct libipw_device *ieee,
1072 struct iw_request_info *info,
1073 union iwreq_data *wrqu, char *extra);
1074 extern int libipw_wx_get_encodeext(struct libipw_device *ieee,
1075 struct iw_request_info *info,
1076 union iwreq_data *wrqu, char *extra);
1078 static inline void libipw_increment_scans(struct libipw_device *ieee)
1083 static inline int libipw_get_scans(struct libipw_device *ieee)
1088 #endif /* LIBIPW_H */