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fix the kernel symbol export patch for arm/powerpc
[openwrt.git] / target / linux / generic-2.4 / patches / 100-wireless-extension.patch
1 --- a/include/linux/netdevice.h
2 +++ b/include/linux/netdevice.h
3 @@ -295,7 +295,9 @@ struct net_device
4
5 /* List of functions to handle Wireless Extensions (instead of ioctl).
6 * See <net/iw_handler.h> for details. Jean II */
7 - struct iw_handler_def * wireless_handlers;
8 + const struct iw_handler_def * wireless_handlers;
9 + /* Instance data managed by the core of Wireless Extensions. */
10 + struct iw_public_data * wireless_data;
11
12 struct ethtool_ops *ethtool_ops;
13
14 --- a/include/linux/wireless.h
15 +++ b/include/linux/wireless.h
16 @@ -1,10 +1,10 @@
17 /*
18 * This file define a set of standard wireless extensions
19 *
20 - * Version : 16 2.4.03
21 + * Version : 18 12.3.05
22 *
23 * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
24 - * Copyright (c) 1997-2002 Jean Tourrilhes, All Rights Reserved.
25 + * Copyright (c) 1997-2005 Jean Tourrilhes, All Rights Reserved.
26 */
27
28 #ifndef _LINUX_WIRELESS_H
29 @@ -47,12 +47,12 @@
30 * # include/net/iw_handler.h
31 *
32 * Note as well that /proc/net/wireless implementation has now moved in :
33 - * # include/linux/wireless.c
34 + * # net/core/wireless.c
35 *
36 * Wireless Events (2002 -> onward) :
37 * --------------------------------
38 * Events are defined at the end of this file, and implemented in :
39 - * # include/linux/wireless.c
40 + * # net/core/wireless.c
41 *
42 * Other comments :
43 * --------------
44 @@ -82,7 +82,7 @@
45 * (there is some stuff that will be added in the future...)
46 * I just plan to increment with each new version.
47 */
48 -#define WIRELESS_EXT 16
49 +#define WIRELESS_EXT 18
50
51 /*
52 * Changes :
53 @@ -175,6 +175,28 @@
54 * - Remove IW_MAX_GET_SPY because conflict with enhanced spy support
55 * - Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy"
56 * - Add IW_ENCODE_TEMP and iw_range->encoding_login_index
57 + *
58 + * V16 to V17
59 + * ----------
60 + * - Add flags to frequency -> auto/fixed
61 + * - Document (struct iw_quality *)->updated, add new flags (INVALID)
62 + * - Wireless Event capability in struct iw_range
63 + * - Add support for relative TxPower (yick !)
64 + *
65 + * V17 to V18 (From Jouni Malinen <jkmaline@cc.hut.fi>)
66 + * ----------
67 + * - Add support for WPA/WPA2
68 + * - Add extended encoding configuration (SIOCSIWENCODEEXT and
69 + * SIOCGIWENCODEEXT)
70 + * - Add SIOCSIWGENIE/SIOCGIWGENIE
71 + * - Add SIOCSIWMLME
72 + * - Add SIOCSIWPMKSA
73 + * - Add struct iw_range bit field for supported encoding capabilities
74 + * - Add optional scan request parameters for SIOCSIWSCAN
75 + * - Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA
76 + * related parameters (extensible up to 4096 parameter values)
77 + * - Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE,
78 + * IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND
79 */
80
81 /**************************** CONSTANTS ****************************/
82 @@ -249,9 +271,33 @@
83 #define SIOCSIWPOWER 0x8B2C /* set Power Management settings */
84 #define SIOCGIWPOWER 0x8B2D /* get Power Management settings */
85
86 +/* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM).
87 + * This ioctl uses struct iw_point and data buffer that includes IE id and len
88 + * fields. More than one IE may be included in the request. Setting the generic
89 + * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers
90 + * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers
91 + * are required to report the used IE as a wireless event, e.g., when
92 + * associating with an AP. */
93 +#define SIOCSIWGENIE 0x8B30 /* set generic IE */
94 +#define SIOCGIWGENIE 0x8B31 /* get generic IE */
95 +
96 +/* WPA : IEEE 802.11 MLME requests */
97 +#define SIOCSIWMLME 0x8B16 /* request MLME operation; uses
98 + * struct iw_mlme */
99 +/* WPA : Authentication mode parameters */
100 +#define SIOCSIWAUTH 0x8B32 /* set authentication mode params */
101 +#define SIOCGIWAUTH 0x8B33 /* get authentication mode params */
102 +
103 +/* WPA : Extended version of encoding configuration */
104 +#define SIOCSIWENCODEEXT 0x8B34 /* set encoding token & mode */
105 +#define SIOCGIWENCODEEXT 0x8B35 /* get encoding token & mode */
106 +
107 +/* WPA2 : PMKSA cache management */
108 +#define SIOCSIWPMKSA 0x8B36 /* PMKSA cache operation */
109 +
110 /* -------------------- DEV PRIVATE IOCTL LIST -------------------- */
111
112 -/* These 16 ioctl are wireless device private.
113 +/* These 32 ioctl are wireless device private, for 16 commands.
114 * Each driver is free to use them for whatever purpose it chooses,
115 * however the driver *must* export the description of those ioctls
116 * with SIOCGIWPRIV and *must* use arguments as defined below.
117 @@ -266,8 +312,8 @@
118 * We now have 32 commands, so a bit more space ;-).
119 * Also, all 'odd' commands are only usable by root and don't return the
120 * content of ifr/iwr to user (but you are not obliged to use the set/get
121 - * convention, just use every other two command).
122 - * And I repeat : you are not obliged to use them with iwspy, but you
123 + * convention, just use every other two command). More details in iwpriv.c.
124 + * And I repeat : you are not forced to use them with iwpriv, but you
125 * must be compliant with it.
126 */
127
128 @@ -290,6 +336,34 @@
129 #define IWEVCUSTOM 0x8C02 /* Driver specific ascii string */
130 #define IWEVREGISTERED 0x8C03 /* Discovered a new node (AP mode) */
131 #define IWEVEXPIRED 0x8C04 /* Expired a node (AP mode) */
132 +#define IWEVGENIE 0x8C05 /* Generic IE (WPA, RSN, WMM, ..)
133 + * (scan results); This includes id and
134 + * length fields. One IWEVGENIE may
135 + * contain more than one IE. Scan
136 + * results may contain one or more
137 + * IWEVGENIE events. */
138 +#define IWEVMICHAELMICFAILURE 0x8C06 /* Michael MIC failure
139 + * (struct iw_michaelmicfailure)
140 + */
141 +#define IWEVASSOCREQIE 0x8C07 /* IEs used in (Re)Association Request.
142 + * The data includes id and length
143 + * fields and may contain more than one
144 + * IE. This event is required in
145 + * Managed mode if the driver
146 + * generates its own WPA/RSN IE. This
147 + * should be sent just before
148 + * IWEVREGISTERED event for the
149 + * association. */
150 +#define IWEVASSOCRESPIE 0x8C08 /* IEs used in (Re)Association
151 + * Response. The data includes id and
152 + * length fields and may contain more
153 + * than one IE. This may be sent
154 + * between IWEVASSOCREQIE and
155 + * IWEVREGISTERED events for the
156 + * association. */
157 +#define IWEVPMKIDCAND 0x8C09 /* PMKID candidate for RSN
158 + * pre-authentication
159 + * (struct iw_pmkid_cand) */
160
161 #define IWEVFIRST 0x8C00
162
163 @@ -352,6 +426,18 @@
164 #define IW_MODE_SECOND 5 /* Secondary master/repeater (backup) */
165 #define IW_MODE_MONITOR 6 /* Passive monitor (listen only) */
166
167 +/* Statistics flags (bitmask in updated) */
168 +#define IW_QUAL_QUAL_UPDATED 0x1 /* Value was updated since last read */
169 +#define IW_QUAL_LEVEL_UPDATED 0x2
170 +#define IW_QUAL_NOISE_UPDATED 0x4
171 +#define IW_QUAL_QUAL_INVALID 0x10 /* Driver doesn't provide value */
172 +#define IW_QUAL_LEVEL_INVALID 0x20
173 +#define IW_QUAL_NOISE_INVALID 0x40
174 +
175 +/* Frequency flags */
176 +#define IW_FREQ_AUTO 0x00 /* Let the driver decides */
177 +#define IW_FREQ_FIXED 0x01 /* Force a specific value */
178 +
179 /* Maximum number of size of encoding token available
180 * they are listed in the range structure */
181 #define IW_MAX_ENCODING_SIZES 8
182 @@ -390,6 +476,7 @@
183 #define IW_TXPOW_TYPE 0x00FF /* Type of value */
184 #define IW_TXPOW_DBM 0x0000 /* Value is in dBm */
185 #define IW_TXPOW_MWATT 0x0001 /* Value is in mW */
186 +#define IW_TXPOW_RELATIVE 0x0002 /* Value is in arbitrary units */
187 #define IW_TXPOW_RANGE 0x1000 /* Range of value between min/max */
188
189 /* Retry limits and lifetime flags available */
190 @@ -412,12 +499,113 @@
191 #define IW_SCAN_THIS_MODE 0x0020 /* Scan only this Mode */
192 #define IW_SCAN_ALL_RATE 0x0040 /* Scan all Bit-Rates */
193 #define IW_SCAN_THIS_RATE 0x0080 /* Scan only this Bit-Rate */
194 +/* struct iw_scan_req scan_type */
195 +#define IW_SCAN_TYPE_ACTIVE 0
196 +#define IW_SCAN_TYPE_PASSIVE 1
197 /* Maximum size of returned data */
198 #define IW_SCAN_MAX_DATA 4096 /* In bytes */
199
200 /* Max number of char in custom event - use multiple of them if needed */
201 #define IW_CUSTOM_MAX 256 /* In bytes */
202
203 +/* Generic information element */
204 +#define IW_GENERIC_IE_MAX 1024
205 +
206 +/* MLME requests (SIOCSIWMLME / struct iw_mlme) */
207 +#define IW_MLME_DEAUTH 0
208 +#define IW_MLME_DISASSOC 1
209 +
210 +/* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */
211 +#define IW_AUTH_INDEX 0x0FFF
212 +#define IW_AUTH_FLAGS 0xF000
213 +/* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095)
214 + * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the
215 + * parameter that is being set/get to; value will be read/written to
216 + * struct iw_param value field) */
217 +#define IW_AUTH_WPA_VERSION 0
218 +#define IW_AUTH_CIPHER_PAIRWISE 1
219 +#define IW_AUTH_CIPHER_GROUP 2
220 +#define IW_AUTH_KEY_MGMT 3
221 +#define IW_AUTH_TKIP_COUNTERMEASURES 4
222 +#define IW_AUTH_DROP_UNENCRYPTED 5
223 +#define IW_AUTH_80211_AUTH_ALG 6
224 +#define IW_AUTH_WPA_ENABLED 7
225 +#define IW_AUTH_RX_UNENCRYPTED_EAPOL 8
226 +#define IW_AUTH_ROAMING_CONTROL 9
227 +#define IW_AUTH_PRIVACY_INVOKED 10
228 +
229 +/* IW_AUTH_WPA_VERSION values (bit field) */
230 +#define IW_AUTH_WPA_VERSION_DISABLED 0x00000001
231 +#define IW_AUTH_WPA_VERSION_WPA 0x00000002
232 +#define IW_AUTH_WPA_VERSION_WPA2 0x00000004
233 +
234 +/* IW_AUTH_PAIRWISE_CIPHER and IW_AUTH_GROUP_CIPHER values (bit field) */
235 +#define IW_AUTH_CIPHER_NONE 0x00000001
236 +#define IW_AUTH_CIPHER_WEP40 0x00000002
237 +#define IW_AUTH_CIPHER_TKIP 0x00000004
238 +#define IW_AUTH_CIPHER_CCMP 0x00000008
239 +#define IW_AUTH_CIPHER_WEP104 0x00000010
240 +
241 +/* IW_AUTH_KEY_MGMT values (bit field) */
242 +#define IW_AUTH_KEY_MGMT_802_1X 1
243 +#define IW_AUTH_KEY_MGMT_PSK 2
244 +
245 +/* IW_AUTH_80211_AUTH_ALG values (bit field) */
246 +#define IW_AUTH_ALG_OPEN_SYSTEM 0x00000001
247 +#define IW_AUTH_ALG_SHARED_KEY 0x00000002
248 +#define IW_AUTH_ALG_LEAP 0x00000004
249 +
250 +/* IW_AUTH_ROAMING_CONTROL values */
251 +#define IW_AUTH_ROAMING_ENABLE 0 /* driver/firmware based roaming */
252 +#define IW_AUTH_ROAMING_DISABLE 1 /* user space program used for roaming
253 + * control */
254 +
255 +/* SIOCSIWENCODEEXT definitions */
256 +#define IW_ENCODE_SEQ_MAX_SIZE 8
257 +/* struct iw_encode_ext ->alg */
258 +#define IW_ENCODE_ALG_NONE 0
259 +#define IW_ENCODE_ALG_WEP 1
260 +#define IW_ENCODE_ALG_TKIP 2
261 +#define IW_ENCODE_ALG_CCMP 3
262 +/* struct iw_encode_ext ->ext_flags */
263 +#define IW_ENCODE_EXT_TX_SEQ_VALID 0x00000001
264 +#define IW_ENCODE_EXT_RX_SEQ_VALID 0x00000002
265 +#define IW_ENCODE_EXT_GROUP_KEY 0x00000004
266 +#define IW_ENCODE_EXT_SET_TX_KEY 0x00000008
267 +
268 +/* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */
269 +#define IW_MICFAILURE_KEY_ID 0x00000003 /* Key ID 0..3 */
270 +#define IW_MICFAILURE_GROUP 0x00000004
271 +#define IW_MICFAILURE_PAIRWISE 0x00000008
272 +#define IW_MICFAILURE_STAKEY 0x00000010
273 +#define IW_MICFAILURE_COUNT 0x00000060 /* 1 or 2 (0 = count not supported)
274 + */
275 +
276 +/* Bit field values for enc_capa in struct iw_range */
277 +#define IW_ENC_CAPA_WPA 0x00000001
278 +#define IW_ENC_CAPA_WPA2 0x00000002
279 +#define IW_ENC_CAPA_CIPHER_TKIP 0x00000004
280 +#define IW_ENC_CAPA_CIPHER_CCMP 0x00000008
281 +
282 +/* Event capability macros - in (struct iw_range *)->event_capa
283 + * Because we have more than 32 possible events, we use an array of
284 + * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */
285 +#define IW_EVENT_CAPA_BASE(cmd) ((cmd >= SIOCIWFIRSTPRIV) ? \
286 + (cmd - SIOCIWFIRSTPRIV + 0x60) : \
287 + (cmd - SIOCSIWCOMMIT))
288 +#define IW_EVENT_CAPA_INDEX(cmd) (IW_EVENT_CAPA_BASE(cmd) >> 5)
289 +#define IW_EVENT_CAPA_MASK(cmd) (1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F))
290 +/* Event capability constants - event autogenerated by the kernel
291 + * This list is valid for most 802.11 devices, customise as needed... */
292 +#define IW_EVENT_CAPA_K_0 (IW_EVENT_CAPA_MASK(0x8B04) | \
293 + IW_EVENT_CAPA_MASK(0x8B06) | \
294 + IW_EVENT_CAPA_MASK(0x8B1A))
295 +#define IW_EVENT_CAPA_K_1 (IW_EVENT_CAPA_MASK(0x8B2A))
296 +/* "Easy" macro to set events in iw_range (less efficient) */
297 +#define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd))
298 +#define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; }
299 +
300 +
301 /****************************** TYPES ******************************/
302
303 /* --------------------------- SUBTYPES --------------------------- */
304 @@ -456,7 +644,7 @@ struct iw_freq
305 __s32 m; /* Mantissa */
306 __s16 e; /* Exponent */
307 __u8 i; /* List index (when in range struct) */
308 - __u8 pad; /* Unused - just for alignement */
309 + __u8 flags; /* Flags (fixed/auto) */
310 };
311
312 /*
313 @@ -507,6 +695,132 @@ struct iw_thrspy
314 struct iw_quality high; /* High threshold */
315 };
316
317 +/*
318 + * Optional data for scan request
319 + *
320 + * Note: these optional parameters are controlling parameters for the
321 + * scanning behavior, these do not apply to getting scan results
322 + * (SIOCGIWSCAN). Drivers are expected to keep a local BSS table and
323 + * provide a merged results with all BSSes even if the previous scan
324 + * request limited scanning to a subset, e.g., by specifying an SSID.
325 + * Especially, scan results are required to include an entry for the
326 + * current BSS if the driver is in Managed mode and associated with an AP.
327 + */
328 +struct iw_scan_req
329 +{
330 + __u8 scan_type; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */
331 + __u8 essid_len;
332 + __u8 num_channels; /* num entries in channel_list;
333 + * 0 = scan all allowed channels */
334 + __u8 flags; /* reserved as padding; use zero, this may
335 + * be used in the future for adding flags
336 + * to request different scan behavior */
337 + struct sockaddr bssid; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or
338 + * individual address of a specific BSS */
339 +
340 + /*
341 + * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using
342 + * the current ESSID. This allows scan requests for specific ESSID
343 + * without having to change the current ESSID and potentially breaking
344 + * the current association.
345 + */
346 + __u8 essid[IW_ESSID_MAX_SIZE];
347 +
348 + /*
349 + * Optional parameters for changing the default scanning behavior.
350 + * These are based on the MLME-SCAN.request from IEEE Std 802.11.
351 + * TU is 1.024 ms. If these are set to 0, driver is expected to use
352 + * reasonable default values. min_channel_time defines the time that
353 + * will be used to wait for the first reply on each channel. If no
354 + * replies are received, next channel will be scanned after this. If
355 + * replies are received, total time waited on the channel is defined by
356 + * max_channel_time.
357 + */
358 + __u32 min_channel_time; /* in TU */
359 + __u32 max_channel_time; /* in TU */
360 +
361 + struct iw_freq channel_list[IW_MAX_FREQUENCIES];
362 +};
363 +
364 +/* ------------------------- WPA SUPPORT ------------------------- */
365 +
366 +/*
367 + * Extended data structure for get/set encoding (this is used with
368 + * SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_*
369 + * flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and
370 + * only the data contents changes (key data -> this structure, including
371 + * key data).
372 + *
373 + * If the new key is the first group key, it will be set as the default
374 + * TX key. Otherwise, default TX key index is only changed if
375 + * IW_ENCODE_EXT_SET_TX_KEY flag is set.
376 + *
377 + * Key will be changed with SIOCSIWENCODEEXT in all cases except for
378 + * special "change TX key index" operation which is indicated by setting
379 + * key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY.
380 + *
381 + * tx_seq/rx_seq are only used when respective
382 + * IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal
383 + * TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start
384 + * TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally
385 + * used only by an Authenticator (AP or an IBSS station) to get the
386 + * current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and
387 + * RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for
388 + * debugging/testing.
389 + */
390 +struct iw_encode_ext
391 +{
392 + __u32 ext_flags; /* IW_ENCODE_EXT_* */
393 + __u8 tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
394 + __u8 rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
395 + struct sockaddr addr; /* ff:ff:ff:ff:ff:ff for broadcast/multicast
396 + * (group) keys or unicast address for
397 + * individual keys */
398 + __u16 alg; /* IW_ENCODE_ALG_* */
399 + __u16 key_len;
400 + __u8 key[0];
401 +};
402 +
403 +/* SIOCSIWMLME data */
404 +struct iw_mlme
405 +{
406 + __u16 cmd; /* IW_MLME_* */
407 + __u16 reason_code;
408 + struct sockaddr addr;
409 +};
410 +
411 +/* SIOCSIWPMKSA data */
412 +#define IW_PMKSA_ADD 1
413 +#define IW_PMKSA_REMOVE 2
414 +#define IW_PMKSA_FLUSH 3
415 +
416 +#define IW_PMKID_LEN 16
417 +
418 +struct iw_pmksa
419 +{
420 + __u32 cmd; /* IW_PMKSA_* */
421 + struct sockaddr bssid;
422 + __u8 pmkid[IW_PMKID_LEN];
423 +};
424 +
425 +/* IWEVMICHAELMICFAILURE data */
426 +struct iw_michaelmicfailure
427 +{
428 + __u32 flags;
429 + struct sockaddr src_addr;
430 + __u8 tsc[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
431 +};
432 +
433 +/* IWEVPMKIDCAND data */
434 +#define IW_PMKID_CAND_PREAUTH 0x00000001 /* RNS pre-authentication enabled */
435 +struct iw_pmkid_cand
436 +{
437 + __u32 flags; /* IW_PMKID_CAND_* */
438 + __u32 index; /* the smaller the index, the higher the
439 + * priority */
440 + struct sockaddr bssid;
441 +};
442 +
443 /* ------------------------ WIRELESS STATS ------------------------ */
444 /*
445 * Wireless statistics (used for /proc/net/wireless)
446 @@ -610,11 +924,12 @@ struct iw_range
447 /* Old Frequency (backward compat - moved lower ) */
448 __u16 old_num_channels;
449 __u8 old_num_frequency;
450 - /* Filler to keep "version" at the same offset */
451 - __s32 old_freq[6];
452 +
453 + /* Wireless event capability bitmasks */
454 + __u32 event_capa[6];
455
456 /* signal level threshold range */
457 - __s32 sensitivity;
458 + __s32 sensitivity;
459
460 /* Quality of link & SNR stuff */
461 /* Quality range (link, level, noise)
462 @@ -685,6 +1000,8 @@ struct iw_range
463 struct iw_freq freq[IW_MAX_FREQUENCIES]; /* list */
464 /* Note : this frequency list doesn't need to fit channel numbers,
465 * because each entry contain its channel index */
466 +
467 + __u32 enc_capa; /* IW_ENC_CAPA_* bit field */
468 };
469
470 /*
471 --- a/include/net/iw_handler.h
472 +++ b/include/net/iw_handler.h
473 @@ -1,10 +1,10 @@
474 /*
475 * This file define the new driver API for Wireless Extensions
476 *
477 - * Version : 5 4.12.02
478 + * Version : 6 21.6.04
479 *
480 * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
481 - * Copyright (c) 2001-2002 Jean Tourrilhes, All Rights Reserved.
482 + * Copyright (c) 2001-2004 Jean Tourrilhes, All Rights Reserved.
483 */
484
485 #ifndef _IW_HANDLER_H
486 @@ -206,7 +206,7 @@
487 * will be needed...
488 * I just plan to increment with each new version.
489 */
490 -#define IW_HANDLER_VERSION 5
491 +#define IW_HANDLER_VERSION 6
492
493 /*
494 * Changes :
495 @@ -224,11 +224,18 @@
496 * V4 to V5
497 * --------
498 * - Add new spy support : struct iw_spy_data & prototypes
499 + *
500 + * V5 to V6
501 + * --------
502 + * - Change the way we get to spy_data method for added safety
503 + * - Remove spy #ifdef, they are always on -> cleaner code
504 + * - Add IW_DESCR_FLAG_NOMAX flag for very large requests
505 + * - Start migrating get_wireless_stats to struct iw_handler_def
506 */
507
508 /**************************** CONSTANTS ****************************/
509
510 -/* Enable enhanced spy support. Disable to reduce footprint */
511 +/* Enhanced spy support available */
512 #define IW_WIRELESS_SPY
513 #define IW_WIRELESS_THRSPY
514
515 @@ -258,6 +265,7 @@
516 #define IW_DESCR_FLAG_EVENT 0x0002 /* Generate an event on SET */
517 #define IW_DESCR_FLAG_RESTRICT 0x0004 /* GET : request is ROOT only */
518 /* SET : Omit payload from generated iwevent */
519 +#define IW_DESCR_FLAG_NOMAX 0x0008 /* GET : no limit on request size */
520 /* Driver level flags */
521 #define IW_DESCR_FLAG_WAIT 0x0100 /* Wait for driver event */
522
523 @@ -311,23 +319,25 @@ struct iw_handler_def
524 /* Array of handlers for standard ioctls
525 * We will call dev->wireless_handlers->standard[ioctl - SIOCSIWNAME]
526 */
527 - iw_handler * standard;
528 + const iw_handler * standard;
529
530 /* Array of handlers for private ioctls
531 * Will call dev->wireless_handlers->private[ioctl - SIOCIWFIRSTPRIV]
532 */
533 - iw_handler * private;
534 + const iw_handler * private;
535
536 /* Arguments of private handler. This one is just a list, so you
537 * can put it in any order you want and should not leave holes...
538 * We will automatically export that to user space... */
539 - struct iw_priv_args * private_args;
540 + const struct iw_priv_args * private_args;
541
542 - /* Driver enhanced spy support */
543 - long spy_offset; /* Spy data offset */
544 + /* This field will be *removed* in the next version of WE */
545 + long spy_offset; /* DO NOT USE */
546
547 - /* In the long term, get_wireless_stats will move from
548 - * 'struct net_device' to here, to minimise bloat. */
549 + /* New location of get_wireless_stats, to de-bloat struct net_device.
550 + * The old pointer in struct net_device will be gradually phased
551 + * out, and drivers are encouraged to use this one... */
552 + struct iw_statistics* (*get_wireless_stats)(struct net_device *dev);
553 };
554
555 /* ---------------------- IOCTL DESCRIPTION ---------------------- */
556 @@ -374,18 +384,29 @@ struct iw_ioctl_description
557 */
558 struct iw_spy_data
559 {
560 -#ifdef IW_WIRELESS_SPY
561 /* --- Standard spy support --- */
562 int spy_number;
563 u_char spy_address[IW_MAX_SPY][ETH_ALEN];
564 struct iw_quality spy_stat[IW_MAX_SPY];
565 -#ifdef IW_WIRELESS_THRSPY
566 /* --- Enhanced spy support (event) */
567 struct iw_quality spy_thr_low; /* Low threshold */
568 struct iw_quality spy_thr_high; /* High threshold */
569 u_char spy_thr_under[IW_MAX_SPY];
570 -#endif /* IW_WIRELESS_THRSPY */
571 -#endif /* IW_WIRELESS_SPY */
572 +};
573 +
574 +/* --------------------- DEVICE WIRELESS DATA --------------------- */
575 +/*
576 + * This is all the wireless data specific to a device instance that
577 + * is managed by the core of Wireless Extensions.
578 + * We only keep pointer to those structures, so that a driver is free
579 + * to share them between instances.
580 + * This structure should be initialised before registering the device.
581 + * Access to this data follow the same rules as any other struct net_device
582 + * data (i.e. valid as long as struct net_device exist, same locking rules).
583 + */
584 +struct iw_public_data {
585 + /* Driver enhanced spy support */
586 + struct iw_spy_data * spy_data;
587 };
588
589 /**************************** PROTOTYPES ****************************/
590 --- a/net/core/dev.c
591 +++ b/net/core/dev.c
592 @@ -2426,7 +2426,7 @@ int dev_ioctl(unsigned int cmd, void *ar
593 /* Follow me in net/core/wireless.c */
594 ret = wireless_process_ioctl(&ifr, cmd);
595 rtnl_unlock();
596 - if (!ret && IW_IS_GET(cmd) &&
597 + if (IW_IS_GET(cmd) &&
598 copy_to_user(arg, &ifr, sizeof(struct ifreq)))
599 return -EFAULT;
600 return ret;
601 --- a/net/core/wireless.c
602 +++ b/net/core/wireless.c
603 @@ -2,7 +2,7 @@
604 * This file implement the Wireless Extensions APIs.
605 *
606 * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
607 - * Copyright (c) 1997-2003 Jean Tourrilhes, All Rights Reserved.
608 + * Copyright (c) 1997-2005 Jean Tourrilhes, All Rights Reserved.
609 *
610 * (As all part of the Linux kernel, this file is GPL)
611 */
612 @@ -48,6 +48,16 @@
613 * o Add common spy support : iw_handler_set_spy(), wireless_spy_update()
614 * o Add enhanced spy support : iw_handler_set_thrspy() and event.
615 * o Add WIRELESS_EXT version display in /proc/net/wireless
616 + *
617 + * v6 - 18.06.04 - Jean II
618 + * o Change get_spydata() method for added safety
619 + * o Remove spy #ifdef, they are always on -> cleaner code
620 + * o Allow any size GET request if user specifies length > max
621 + * and if request has IW_DESCR_FLAG_NOMAX flag or is SIOCGIWPRIV
622 + * o Start migrating get_wireless_stats to struct iw_handler_def
623 + * o Add wmb() in iw_handler_set_spy() for non-coherent archs/cpus
624 + * Based on patch from Pavel Roskin <proski@gnu.org> :
625 + * o Fix kernel data leak to user space in private handler handling
626 */
627
628 /***************************** INCLUDES *****************************/
629 @@ -64,11 +74,7 @@
630
631 /**************************** CONSTANTS ****************************/
632
633 -/* Enough lenience, let's make sure things are proper... */
634 -#define WE_STRICT_WRITE /* Check write buffer size */
635 -/* I'll probably drop both the define and kernel message in the next version */
636 -
637 -/* Debuging stuff */
638 +/* Debugging stuff */
639 #undef WE_IOCTL_DEBUG /* Debug IOCTL API */
640 #undef WE_EVENT_DEBUG /* Debug Event dispatcher */
641 #undef WE_SPY_DEBUG /* Debug enhanced spy support */
642 @@ -131,14 +137,14 @@ static const struct iw_ioctl_description
643 { IW_HEADER_TYPE_ADDR, 0, 0, 0, 0, 0},
644 /* SIOCGIWAP */
645 { IW_HEADER_TYPE_ADDR, 0, 0, 0, 0, IW_DESCR_FLAG_DUMP},
646 - /* -- hole -- */
647 - { IW_HEADER_TYPE_NULL, 0, 0, 0, 0, 0},
648 + /* SIOCSIWMLME */
649 + { IW_HEADER_TYPE_POINT, 0, 1, sizeof(struct iw_mlme), sizeof(struct iw_mlme), 0},
650 /* SIOCGIWAPLIST */
651 - { IW_HEADER_TYPE_POINT, 0, (sizeof(struct sockaddr) + sizeof(struct iw_quality)), 0, IW_MAX_AP, 0},
652 + { IW_HEADER_TYPE_POINT, 0, (sizeof(struct sockaddr) + sizeof(struct iw_quality)), 0, IW_MAX_AP, IW_DESCR_FLAG_NOMAX},
653 /* SIOCSIWSCAN */
654 - { IW_HEADER_TYPE_PARAM, 0, 0, 0, 0, 0},
655 + { IW_HEADER_TYPE_POINT, 0, 1, 0, sizeof(struct iw_scan_req), 0},
656 /* SIOCGIWSCAN */
657 - { IW_HEADER_TYPE_POINT, 0, 1, 0, IW_SCAN_MAX_DATA, 0},
658 + { IW_HEADER_TYPE_POINT, 0, 1, 0, IW_SCAN_MAX_DATA, IW_DESCR_FLAG_NOMAX},
659 /* SIOCSIWESSID */
660 { IW_HEADER_TYPE_POINT, 0, 1, 0, IW_ESSID_MAX_SIZE + 1, IW_DESCR_FLAG_EVENT},
661 /* SIOCGIWESSID */
662 @@ -179,6 +185,25 @@ static const struct iw_ioctl_description
663 { IW_HEADER_TYPE_PARAM, 0, 0, 0, 0, 0},
664 /* SIOCGIWPOWER */
665 { IW_HEADER_TYPE_PARAM, 0, 0, 0, 0, 0},
666 + /* -- hole -- */
667 + { IW_HEADER_TYPE_NULL, 0, 0, 0, 0, 0},
668 + /* -- hole -- */
669 + { IW_HEADER_TYPE_NULL, 0, 0, 0, 0, 0},
670 + /* SIOCSIWGENIE */
671 + { IW_HEADER_TYPE_POINT, 0, 1, 0, IW_GENERIC_IE_MAX, 0},
672 + /* SIOCGIWGENIE */
673 + { IW_HEADER_TYPE_POINT, 0, 1, 0, IW_GENERIC_IE_MAX, 0},
674 + /* SIOCSIWAUTH */
675 + { IW_HEADER_TYPE_PARAM, 0, 0, 0, 0, 0},
676 + /* SIOCGIWAUTH */
677 + { IW_HEADER_TYPE_PARAM, 0, 0, 0, 0, 0},
678 + /* SIOCSIWENCODEEXT */
679 + { IW_HEADER_TYPE_POINT, 0, 1, sizeof(struct iw_encode_ext), sizeof(struct iw_encode_ext) + IW_ENCODING_TOKEN_MAX, 0},
680 + /* SIOCGIWENCODEEXT */
681 + { IW_HEADER_TYPE_POINT, 0, 1, sizeof(struct iw_encode_ext), sizeof(struct iw_encode_ext) + IW_ENCODING_TOKEN_MAX, 0},
682 + /* SIOCSIWPMKSA */
683 + { IW_HEADER_TYPE_POINT, 0, 1, sizeof(struct iw_pmksa), sizeof(struct iw_pmksa), 0},
684 + /* -- hole -- */
685 };
686 static const int standard_ioctl_num = (sizeof(standard_ioctl) /
687 sizeof(struct iw_ioctl_description));
688 @@ -198,12 +223,22 @@ static const struct iw_ioctl_description
689 { IW_HEADER_TYPE_ADDR, 0, 0, 0, 0, 0},
690 /* IWEVEXPIRED */
691 { IW_HEADER_TYPE_ADDR, 0, 0, 0, 0, 0},
692 + /* IWEVGENIE */
693 + { IW_HEADER_TYPE_POINT, 0, 1, 0, IW_GENERIC_IE_MAX, 0},
694 + /* IWEVMICHAELMICFAILURE */
695 + { IW_HEADER_TYPE_POINT, 0, 1, 0, sizeof(struct iw_michaelmicfailure), 0},
696 + /* IWEVASSOCREQIE */
697 + { IW_HEADER_TYPE_POINT, 0, 1, 0, IW_GENERIC_IE_MAX, 0},
698 + /* IWEVASSOCRESPIE */
699 + { IW_HEADER_TYPE_POINT, 0, 1, 0, IW_GENERIC_IE_MAX, 0},
700 + /* IWEVPMKIDCAND */
701 + { IW_HEADER_TYPE_POINT, 0, 1, 0, sizeof(struct iw_pmkid_cand), 0},
702 };
703 static const int standard_event_num = (sizeof(standard_event) /
704 sizeof(struct iw_ioctl_description));
705
706 /* Size (in bytes) of the various private data types */
707 -static const char priv_type_size[] = {
708 +static const char iw_priv_type_size[] = {
709 0, /* IW_PRIV_TYPE_NONE */
710 1, /* IW_PRIV_TYPE_BYTE */
711 1, /* IW_PRIV_TYPE_CHAR */
712 @@ -270,12 +305,15 @@ static inline iw_handler get_handler(str
713 */
714 static inline struct iw_statistics *get_wireless_stats(struct net_device *dev)
715 {
716 + /* New location */
717 + if((dev->wireless_handlers != NULL) &&
718 + (dev->wireless_handlers->get_wireless_stats != NULL))
719 + return dev->wireless_handlers->get_wireless_stats(dev);
720 +
721 + /* Old location, will be phased out in next WE */
722 return (dev->get_wireless_stats ?
723 dev->get_wireless_stats(dev) :
724 (struct iw_statistics *) NULL);
725 - /* In the future, get_wireless_stats may move from 'struct net_device'
726 - * to 'struct iw_handler_def', to de-bloat struct net_device.
727 - * Definitely worse a thought... */
728 }
729
730 /* ---------------------------------------------------------------- */
731 @@ -310,14 +348,32 @@ static inline int call_commit_handler(st
732
733 /* ---------------------------------------------------------------- */
734 /*
735 - * Number of private arguments
736 + * Calculate size of private arguments
737 */
738 static inline int get_priv_size(__u16 args)
739 {
740 int num = args & IW_PRIV_SIZE_MASK;
741 int type = (args & IW_PRIV_TYPE_MASK) >> 12;
742
743 - return num * priv_type_size[type];
744 + return num * iw_priv_type_size[type];
745 +}
746 +
747 +/* ---------------------------------------------------------------- */
748 +/*
749 + * Re-calculate the size of private arguments
750 + */
751 +static inline int adjust_priv_size(__u16 args,
752 + union iwreq_data * wrqu)
753 +{
754 + int num = wrqu->data.length;
755 + int max = args & IW_PRIV_SIZE_MASK;
756 + int type = (args & IW_PRIV_TYPE_MASK) >> 12;
757 +
758 + /* Make sure the driver doesn't goof up */
759 + if (max < num)
760 + num = max;
761 +
762 + return num * iw_priv_type_size[type];
763 }
764
765
766 @@ -350,11 +406,14 @@ static inline int sprintf_wireless_stats
767 dev->name,
768 stats->status,
769 stats->qual.qual,
770 - stats->qual.updated & 1 ? '.' : ' ',
771 + stats->qual.updated & IW_QUAL_QUAL_UPDATED
772 + ? '.' : ' ',
773 ((__u8) stats->qual.level),
774 - stats->qual.updated & 2 ? '.' : ' ',
775 + stats->qual.updated & IW_QUAL_LEVEL_UPDATED
776 + ? '.' : ' ',
777 ((__u8) stats->qual.noise),
778 - stats->qual.updated & 4 ? '.' : ' ',
779 + stats->qual.updated & IW_QUAL_NOISE_UPDATED
780 + ? '.' : ' ',
781 stats->discard.nwid,
782 stats->discard.code,
783 stats->discard.fragment,
784 @@ -470,13 +529,15 @@ static inline int ioctl_export_private(s
785 /* Check NULL pointer */
786 if(iwr->u.data.pointer == NULL)
787 return -EFAULT;
788 -#ifdef WE_STRICT_WRITE
789 +
790 /* Check if there is enough buffer up there */
791 if(iwr->u.data.length < dev->wireless_handlers->num_private_args) {
792 - printk(KERN_ERR "%s (WE) : Buffer for request SIOCGIWPRIV too small (%d<%d)\n", dev->name, iwr->u.data.length, dev->wireless_handlers->num_private_args);
793 + /* User space can't know in advance how large the buffer
794 + * needs to be. Give it a hint, so that we can support
795 + * any size buffer we want somewhat efficiently... */
796 + iwr->u.data.length = dev->wireless_handlers->num_private_args;
797 return -E2BIG;
798 }
799 -#endif /* WE_STRICT_WRITE */
800
801 /* Set the number of available ioctls. */
802 iwr->u.data.length = dev->wireless_handlers->num_private_args;
803 @@ -505,7 +566,6 @@ static inline int ioctl_standard_call(st
804 const struct iw_ioctl_description * descr;
805 struct iw_request_info info;
806 int ret = -EINVAL;
807 - int user_size = 0;
808
809 /* Get the description of the IOCTL */
810 if((cmd - SIOCIWFIRST) >= standard_ioctl_num)
811 @@ -536,8 +596,14 @@ static inline int ioctl_standard_call(st
812 #endif /* WE_SET_EVENT */
813 } else {
814 char * extra;
815 + int extra_size;
816 + int user_length = 0;
817 int err;
818
819 + /* Calculate space needed by arguments. Always allocate
820 + * for max space. Easier, and won't last long... */
821 + extra_size = descr->max_tokens * descr->token_size;
822 +
823 /* Check what user space is giving us */
824 if(IW_IS_SET(cmd)) {
825 /* Check NULL pointer */
826 @@ -554,18 +620,33 @@ static inline int ioctl_standard_call(st
827 if(iwr->u.data.pointer == NULL)
828 return -EFAULT;
829 /* Save user space buffer size for checking */
830 - user_size = iwr->u.data.length;
831 + user_length = iwr->u.data.length;
832 +
833 + /* Don't check if user_length > max to allow forward
834 + * compatibility. The test user_length < min is
835 + * implied by the test at the end. */
836 +
837 + /* Support for very large requests */
838 + if((descr->flags & IW_DESCR_FLAG_NOMAX) &&
839 + (user_length > descr->max_tokens)) {
840 + /* Allow userspace to GET more than max so
841 + * we can support any size GET requests.
842 + * There is still a limit : -ENOMEM. */
843 + extra_size = user_length * descr->token_size;
844 + /* Note : user_length is originally a __u16,
845 + * and token_size is controlled by us,
846 + * so extra_size won't get negative and
847 + * won't overflow... */
848 + }
849 }
850
851 #ifdef WE_IOCTL_DEBUG
852 printk(KERN_DEBUG "%s (WE) : Malloc %d bytes\n",
853 - dev->name, descr->max_tokens * descr->token_size);
854 + dev->name, extra_size);
855 #endif /* WE_IOCTL_DEBUG */
856
857 - /* Always allocate for max space. Easier, and won't last
858 - * long... */
859 - extra = kmalloc(descr->max_tokens * descr->token_size,
860 - GFP_KERNEL);
861 + /* Create the kernel buffer */
862 + extra = kmalloc(extra_size, GFP_KERNEL);
863 if (extra == NULL) {
864 return -ENOMEM;
865 }
866 @@ -591,14 +672,11 @@ static inline int ioctl_standard_call(st
867
868 /* If we have something to return to the user */
869 if (!ret && IW_IS_GET(cmd)) {
870 -#ifdef WE_STRICT_WRITE
871 /* Check if there is enough buffer up there */
872 - if(user_size < iwr->u.data.length) {
873 - printk(KERN_ERR "%s (WE) : Buffer for request %04X too small (%d<%d)\n", dev->name, cmd, user_size, iwr->u.data.length);
874 + if(user_length < iwr->u.data.length) {
875 kfree(extra);
876 return -E2BIG;
877 }
878 -#endif /* WE_STRICT_WRITE */
879
880 err = copy_to_user(iwr->u.data.pointer, extra,
881 iwr->u.data.length *
882 @@ -661,7 +739,7 @@ static inline int ioctl_private_call(str
883 iw_handler handler)
884 {
885 struct iwreq * iwr = (struct iwreq *) ifr;
886 - struct iw_priv_args * descr = NULL;
887 + const struct iw_priv_args * descr = NULL;
888 struct iw_request_info info;
889 int extra_size = 0;
890 int i;
891 @@ -701,7 +779,7 @@ static inline int ioctl_private_call(str
892 ((extra_size + offset) <= IFNAMSIZ))
893 extra_size = 0;
894 } else {
895 - /* Size of set arguments */
896 + /* Size of get arguments */
897 extra_size = get_priv_size(descr->get_args);
898
899 /* Does it fits in iwr ? */
900 @@ -771,6 +849,14 @@ static inline int ioctl_private_call(str
901
902 /* If we have something to return to the user */
903 if (!ret && IW_IS_GET(cmd)) {
904 +
905 + /* Adjust for the actual length if it's variable,
906 + * avoid leaking kernel bits outside. */
907 + if (!(descr->get_args & IW_PRIV_SIZE_FIXED)) {
908 + extra_size = adjust_priv_size(descr->get_args,
909 + &(iwr->u));
910 + }
911 +
912 err = copy_to_user(iwr->u.data.pointer, extra,
913 extra_size);
914 if (err)
915 @@ -1042,9 +1128,25 @@ void wireless_send_event(struct net_devi
916 * One of the main advantage of centralising spy support here is that
917 * it becomes much easier to improve and extend it without having to touch
918 * the drivers. One example is the addition of the Spy-Threshold events.
919 - * Note : IW_WIRELESS_SPY is defined in iw_handler.h
920 */
921
922 +/* ---------------------------------------------------------------- */
923 +/*
924 + * Return the pointer to the spy data in the driver.
925 + * Because this is called on the Rx path via wireless_spy_update(),
926 + * we want it to be efficient...
927 + */
928 +static inline struct iw_spy_data * get_spydata(struct net_device *dev)
929 +{
930 + /* This is the new way */
931 + if(dev->wireless_data)
932 + return(dev->wireless_data->spy_data);
933 +
934 + /* This is the old way. Doesn't work for multi-headed drivers.
935 + * It will be removed in the next version of WE. */
936 + return (dev->priv + dev->wireless_handlers->spy_offset);
937 +}
938 +
939 /*------------------------------------------------------------------*/
940 /*
941 * Standard Wireless Handler : set Spy List
942 @@ -1054,16 +1156,26 @@ int iw_handler_set_spy(struct net_device
943 union iwreq_data * wrqu,
944 char * extra)
945 {
946 -#ifdef IW_WIRELESS_SPY
947 - struct iw_spy_data * spydata = (dev->priv +
948 - dev->wireless_handlers->spy_offset);
949 + struct iw_spy_data * spydata = get_spydata(dev);
950 struct sockaddr * address = (struct sockaddr *) extra;
951
952 + /* Make sure driver is not buggy or using the old API */
953 + if(!spydata)
954 + return -EOPNOTSUPP;
955 +
956 /* Disable spy collection while we copy the addresses.
957 - * As we don't disable interrupts, we need to do this to avoid races.
958 - * As we are the only writer, this is good enough. */
959 + * While we copy addresses, any call to wireless_spy_update()
960 + * will NOP. This is OK, as anyway the addresses are changing. */
961 spydata->spy_number = 0;
962
963 + /* We want to operate without locking, because wireless_spy_update()
964 + * most likely will happen in the interrupt handler, and therefore
965 + * have its own locking constraints and needs performance.
966 + * The rtnl_lock() make sure we don't race with the other iw_handlers.
967 + * This make sure wireless_spy_update() "see" that the spy list
968 + * is temporarily disabled. */
969 + wmb();
970 +
971 /* Are there are addresses to copy? */
972 if(wrqu->data.length > 0) {
973 int i;
974 @@ -1089,13 +1201,14 @@ int iw_handler_set_spy(struct net_device
975 spydata->spy_address[i][5]);
976 #endif /* WE_SPY_DEBUG */
977 }
978 +
979 + /* Make sure above is updated before re-enabling */
980 + wmb();
981 +
982 /* Enable addresses */
983 spydata->spy_number = wrqu->data.length;
984
985 return 0;
986 -#else /* IW_WIRELESS_SPY */
987 - return -EOPNOTSUPP;
988 -#endif /* IW_WIRELESS_SPY */
989 }
990
991 /*------------------------------------------------------------------*/
992 @@ -1107,12 +1220,14 @@ int iw_handler_get_spy(struct net_device
993 union iwreq_data * wrqu,
994 char * extra)
995 {
996 -#ifdef IW_WIRELESS_SPY
997 - struct iw_spy_data * spydata = (dev->priv +
998 - dev->wireless_handlers->spy_offset);
999 + struct iw_spy_data * spydata = get_spydata(dev);
1000 struct sockaddr * address = (struct sockaddr *) extra;
1001 int i;
1002
1003 + /* Make sure driver is not buggy or using the old API */
1004 + if(!spydata)
1005 + return -EOPNOTSUPP;
1006 +
1007 wrqu->data.length = spydata->spy_number;
1008
1009 /* Copy addresses. */
1010 @@ -1129,9 +1244,6 @@ int iw_handler_get_spy(struct net_device
1011 for(i = 0; i < spydata->spy_number; i++)
1012 spydata->spy_stat[i].updated = 0;
1013 return 0;
1014 -#else /* IW_WIRELESS_SPY */
1015 - return -EOPNOTSUPP;
1016 -#endif /* IW_WIRELESS_SPY */
1017 }
1018
1019 /*------------------------------------------------------------------*/
1020 @@ -1143,11 +1255,13 @@ int iw_handler_set_thrspy(struct net_dev
1021 union iwreq_data * wrqu,
1022 char * extra)
1023 {
1024 -#ifdef IW_WIRELESS_THRSPY
1025 - struct iw_spy_data * spydata = (dev->priv +
1026 - dev->wireless_handlers->spy_offset);
1027 + struct iw_spy_data * spydata = get_spydata(dev);
1028 struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
1029
1030 + /* Make sure driver is not buggy or using the old API */
1031 + if(!spydata)
1032 + return -EOPNOTSUPP;
1033 +
1034 /* Just do it */
1035 memcpy(&(spydata->spy_thr_low), &(threshold->low),
1036 2 * sizeof(struct iw_quality));
1037 @@ -1160,9 +1274,6 @@ int iw_handler_set_thrspy(struct net_dev
1038 #endif /* WE_SPY_DEBUG */
1039
1040 return 0;
1041 -#else /* IW_WIRELESS_THRSPY */
1042 - return -EOPNOTSUPP;
1043 -#endif /* IW_WIRELESS_THRSPY */
1044 }
1045
1046 /*------------------------------------------------------------------*/
1047 @@ -1174,22 +1285,20 @@ int iw_handler_get_thrspy(struct net_dev
1048 union iwreq_data * wrqu,
1049 char * extra)
1050 {
1051 -#ifdef IW_WIRELESS_THRSPY
1052 - struct iw_spy_data * spydata = (dev->priv +
1053 - dev->wireless_handlers->spy_offset);
1054 + struct iw_spy_data * spydata = get_spydata(dev);
1055 struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
1056
1057 + /* Make sure driver is not buggy or using the old API */
1058 + if(!spydata)
1059 + return -EOPNOTSUPP;
1060 +
1061 /* Just do it */
1062 memcpy(&(threshold->low), &(spydata->spy_thr_low),
1063 2 * sizeof(struct iw_quality));
1064
1065 return 0;
1066 -#else /* IW_WIRELESS_THRSPY */
1067 - return -EOPNOTSUPP;
1068 -#endif /* IW_WIRELESS_THRSPY */
1069 }
1070
1071 -#ifdef IW_WIRELESS_THRSPY
1072 /*------------------------------------------------------------------*/
1073 /*
1074 * Prepare and send a Spy Threshold event
1075 @@ -1227,7 +1336,6 @@ static void iw_send_thrspy_event(struct
1076 /* Send event to user space */
1077 wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold);
1078 }
1079 -#endif /* IW_WIRELESS_THRSPY */
1080
1081 /* ---------------------------------------------------------------- */
1082 /*
1083 @@ -1240,12 +1348,14 @@ void wireless_spy_update(struct net_devi
1084 unsigned char * address,
1085 struct iw_quality * wstats)
1086 {
1087 -#ifdef IW_WIRELESS_SPY
1088 - struct iw_spy_data * spydata = (dev->priv +
1089 - dev->wireless_handlers->spy_offset);
1090 + struct iw_spy_data * spydata = get_spydata(dev);
1091 int i;
1092 int match = -1;
1093
1094 + /* Make sure driver is not buggy or using the old API */
1095 + if(!spydata)
1096 + return;
1097 +
1098 #ifdef WE_SPY_DEBUG
1099 printk(KERN_DEBUG "wireless_spy_update() : offset %ld, spydata %p, address %02X:%02X:%02X:%02X:%02X:%02X\n", dev->wireless_handlers->spy_offset, spydata, address[0], address[1], address[2], address[3], address[4], address[5]);
1100 #endif /* WE_SPY_DEBUG */
1101 @@ -1257,7 +1367,7 @@ void wireless_spy_update(struct net_devi
1102 sizeof(struct iw_quality));
1103 match = i;
1104 }
1105 -#ifdef IW_WIRELESS_THRSPY
1106 +
1107 /* Generate an event if we cross the spy threshold.
1108 * To avoid event storms, we have a simple hysteresis : we generate
1109 * event only when we go under the low threshold or above the
1110 @@ -1277,6 +1387,4 @@ void wireless_spy_update(struct net_devi
1111 }
1112 }
1113 }
1114 -#endif /* IW_WIRELESS_THRSPY */
1115 -#endif /* IW_WIRELESS_SPY */
1116 }
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