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madwifi: fix race condition on ibss init (#5935)
[openwrt.git] / package / madwifi / patches / 351-scanlist.patch
1 --- a/net80211/ieee80211_scan_sta.c
2 +++ b/net80211/ieee80211_scan_sta.c
3 @@ -317,147 +317,6 @@ found:
4 #undef ISPROBE
5 }
6
7 -static struct ieee80211_channel *
8 -find11gchannel(struct ieee80211com *ic, int i, int freq)
9 -{
10 - struct ieee80211_channel *c;
11 - int j;
12 -
13 - /*
14 - * The normal ordering in the channel list is b channel
15 - * immediately followed by g so optimize the search for
16 - * this. We'll still do a full search just in case.
17 - */
18 - for (j = i+1; j < ic->ic_nchans; j++) {
19 - c = &ic->ic_channels[j];
20 - if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
21 - return c;
22 - }
23 - for (j = 0; j < i; j++) {
24 - c = &ic->ic_channels[j];
25 - if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
26 - return c;
27 - }
28 - return NULL;
29 -}
30 -static const u_int chanflags[] = {
31 - IEEE80211_CHAN_B, /* IEEE80211_MODE_AUTO */
32 - IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
33 - IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
34 - IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
35 - IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
36 - IEEE80211_CHAN_A, /* IEEE80211_MODE_TURBO_A */ /* for turbo mode look for AP in normal channel */
37 - IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_TURBO_G */
38 - IEEE80211_CHAN_ST, /* IEEE80211_MODE_TURBO_STATIC_A */
39 -};
40 -
41 -static void
42 -add_channels(struct ieee80211com *ic,
43 - struct ieee80211_scan_state *ss,
44 - enum ieee80211_phymode mode, const u_int16_t freq[], int nfreq)
45 -{
46 - struct ieee80211_channel *c, *cg;
47 - u_int modeflags;
48 - int i;
49 -
50 - KASSERT(mode < ARRAY_SIZE(chanflags), ("Unexpected mode %u", mode));
51 - modeflags = chanflags[mode];
52 - for (i = 0; i < nfreq; i++) {
53 - c = ieee80211_find_channel(ic, freq[i], modeflags);
54 - if (c == NULL || isclr(ic->ic_chan_active, c->ic_ieee))
55 - continue;
56 - if (mode == IEEE80211_MODE_AUTO) {
57 - /*
58 - * XXX special-case 11b/g channels so we select
59 - * the g channel if both are present.
60 - */
61 - if (IEEE80211_IS_CHAN_B(c) &&
62 - (cg = find11gchannel(ic, i, c->ic_freq)) != NULL)
63 - c = cg;
64 - }
65 - if (ss->ss_last >= IEEE80211_SCAN_MAX)
66 - break;
67 - ss->ss_chans[ss->ss_last++] = c;
68 - }
69 -}
70 -
71 -static const u_int16_t rcl1[] = /* 8 FCC channel: 52, 56, 60, 64, 36, 40, 44, 48 */
72 -{ 5260, 5280, 5300, 5320, 5180, 5200, 5220, 5240 };
73 -static const u_int16_t rcl2[] = /* 4 MKK channels: 34, 38, 42, 46 */
74 -{ 5170, 5190, 5210, 5230 };
75 -static const u_int16_t rcl3[] = /* 2.4Ghz ch: 1,6,11,7,13 */
76 -{ 2412, 2437, 2462, 2442, 2472 };
77 -static const u_int16_t rcl4[] = /* 5 FCC channel: 149, 153, 161, 165 */
78 -{ 5745, 5765, 5785, 5805, 5825 };
79 -static const u_int16_t rcl7[] = /* 11 ETSI channel: 100,104,108,112,116,120,124,128,132,136,140 */
80 -{ 5500, 5520, 5540, 5560, 5580, 5600, 5620, 5640, 5660, 5680, 5700 };
81 -static const u_int16_t rcl8[] = /* 2.4Ghz ch: 2,3,4,5,8,9,10,12 */
82 -{ 2417, 2422, 2427, 2432, 2447, 2452, 2457, 2467 };
83 -static const u_int16_t rcl9[] = /* 2.4Ghz ch: 14 */
84 -{ 2484 };
85 -static const u_int16_t rcl10[] = /* Added Korean channels 2312-2372 */
86 -{ 2312, 2317, 2322, 2327, 2332, 2337, 2342, 2347, 2352, 2357, 2362, 2367, 2372 };
87 -static const u_int16_t rcl11[] = /* Added Japan channels in 4.9/5.0 spectrum */
88 -{ 5040, 5060, 5080, 4920, 4940, 4960, 4980 };
89 -#ifdef ATH_TURBO_SCAN
90 -static const u_int16_t rcl5[] = /* 3 static turbo channels */
91 -{ 5210, 5250, 5290 };
92 -static const u_int16_t rcl6[] = /* 2 static turbo channels */
93 -{ 5760, 5800 };
94 -static const u_int16_t rcl6x[] = /* 4 FCC3 turbo channels */
95 -{ 5540, 5580, 5620, 5660 };
96 -static const u_int16_t rcl12[] = /* 2.4Ghz Turbo channel 6 */
97 -{ 2437 };
98 -static const u_int16_t rcl13[] = /* dynamic Turbo channels */
99 -{ 5200, 5240, 5280, 5765, 5805 };
100 -#endif /* ATH_TURBO_SCAN */
101 -
102 -struct scanlist {
103 - u_int16_t mode;
104 - u_int16_t count;
105 - const u_int16_t *list;
106 -};
107 -
108 -#define IEEE80211_MODE_TURBO_STATIC_A IEEE80211_MODE_MAX
109 -#define X(a) .count = sizeof(a)/sizeof(a[0]), .list = a
110 -
111 -static const struct scanlist staScanTable[] = {
112 - { IEEE80211_MODE_11B, X(rcl3) },
113 - { IEEE80211_MODE_11A, X(rcl1) },
114 - { IEEE80211_MODE_11A, X(rcl2) },
115 - { IEEE80211_MODE_11B, X(rcl8) },
116 - { IEEE80211_MODE_11B, X(rcl9) },
117 - { IEEE80211_MODE_11A, X(rcl4) },
118 -#ifdef ATH_TURBO_SCAN
119 - { IEEE80211_MODE_TURBO_STATIC_A, X(rcl5) },
120 - { IEEE80211_MODE_TURBO_STATIC_A, X(rcl6) },
121 - { IEEE80211_MODE_TURBO_A, X(rcl6x) },
122 - { IEEE80211_MODE_TURBO_A, X(rcl13) },
123 -#endif /* ATH_TURBO_SCAN */
124 - { IEEE80211_MODE_11A, X(rcl7) },
125 - { IEEE80211_MODE_11B, X(rcl10) },
126 - { IEEE80211_MODE_11A, X(rcl11) },
127 -#ifdef ATH_TURBO_SCAN
128 - { IEEE80211_MODE_TURBO_G, X(rcl12) },
129 -#endif /* ATH_TURBO_SCAN */
130 - { .list = NULL }
131 -};
132 -
133 -#undef X
134 -
135 -static int
136 -checktable(const struct scanlist *scan, const struct ieee80211_channel *c)
137 -{
138 - int i;
139 -
140 - for (; scan->list != NULL; scan++) {
141 - for (i = 0; i < scan->count; i++)
142 - if (scan->list[i] == c->ic_freq)
143 - return 1;
144 - }
145 - return 0;
146 -}
147 -
148 /*
149 * Start a station-mode scan by populating the channel list.
150 */
151 @@ -466,81 +325,14 @@ sta_start(struct ieee80211_scan_state *s
152 {
153 struct ieee80211com *ic = vap->iv_ic;
154 struct sta_table *st = ss->ss_priv;
155 - const struct scanlist *scan;
156 enum ieee80211_phymode mode;
157 struct ieee80211_channel *c;
158 int i;
159
160 ss->ss_last = 0;
161 - /*
162 - * Use the table of ordered channels to construct the list
163 - * of channels for scanning. Any channels in the ordered
164 - * list not in the master list will be discarded.
165 - */
166 - for (scan = staScanTable; scan->list != NULL; scan++) {
167 - mode = scan->mode;
168 - if (vap->iv_des_mode != IEEE80211_MODE_AUTO) {
169 - /*
170 - * If a desired mode was specified, scan only
171 - * channels that satisfy that constraint.
172 - */
173 - if (vap->iv_des_mode != mode) {
174 - /*
175 - * The scan table marks 2.4Ghz channels as b
176 - * so if the desired mode is 11g, then use
177 - * the 11b channel list but upgrade the mode.
178 - */
179 - if (vap->iv_des_mode != IEEE80211_MODE_11G ||
180 - mode != IEEE80211_MODE_11B)
181 - continue;
182 - mode = IEEE80211_MODE_11G; /* upgrade */
183 - }
184 - } else {
185 - /*
186 - * This lets ieee80211_scan_add_channels
187 - * upgrade an 11b channel to 11g if available.
188 - */
189 - if (mode == IEEE80211_MODE_11B)
190 - mode = IEEE80211_MODE_AUTO;
191 - }
192 - /* XR does not operate on turbo channels */
193 - if ((vap->iv_flags & IEEE80211_F_XR) &&
194 - (mode == IEEE80211_MODE_TURBO_A ||
195 - mode == IEEE80211_MODE_TURBO_G))
196 - continue;
197 - /*
198 - * Add the list of the channels; any that are not
199 - * in the master channel list will be discarded.
200 - */
201 - add_channels(ic, ss, mode, scan->list, scan->count);
202 - }
203 -
204 - /*
205 - * Add the channels from the ic (from HAL) that are not present
206 - * in the staScanTable.
207 - */
208 - for (i = 0; i < ic->ic_nchans; i++) {
209 - c = &ic->ic_channels[i];
210 - /*
211 - * scan dynamic turbo channels in normal mode.
212 - */
213 - if (IEEE80211_IS_CHAN_DTURBO(c))
214 - continue;
215 - mode = ieee80211_chan2mode(c);
216 - if (vap->iv_des_mode != IEEE80211_MODE_AUTO) {
217 - /*
218 - * If a desired mode was specified, scan only
219 - * channels that satisfy that constraint.
220 - */
221 - if (vap->iv_des_mode != mode)
222 - continue;
223 -
224 - }
225 - if (!checktable(staScanTable, c))
226 - ss->ss_chans[ss->ss_last++] = c;
227 - }
228 -
229 + ieee80211_scan_add_channels(ic, ss, vap->iv_des_mode);
230 ss->ss_next = 0;
231 +
232 /* XXX tunables */
233 /*
234 * The scanner will stay on station for ss_maxdwell ms (using a
235 @@ -749,17 +541,7 @@ match_bss(struct ieee80211vap *vap,
236 fail = 0;
237 if (isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, se->se_chan)))
238 fail |= 0x01;
239 - /*
240 - * NB: normally the desired mode is used to construct
241 - * the channel list, but it's possible for the scan
242 - * cache to include entries for stations outside this
243 - * list so we check the desired mode here to weed them
244 - * out.
245 - */
246 - if (vap->iv_des_mode != IEEE80211_MODE_AUTO &&
247 - (se->se_chan->ic_flags & IEEE80211_CHAN_ALLTURBO) !=
248 - chanflags[vap->iv_des_mode])
249 - fail |= 0x01;
250 +
251 if (vap->iv_opmode == IEEE80211_M_IBSS) {
252 if ((se->se_capinfo & IEEE80211_CAPINFO_IBSS) == 0)
253 fail |= 0x02;
254 @@ -1168,78 +950,6 @@ static const struct ieee80211_scanner st
255 .scan_default = ieee80211_sta_join,
256 };
257
258 -/*
259 - * Start an adhoc-mode scan by populating the channel list.
260 - */
261 -static int
262 -adhoc_start(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
263 -{
264 - struct ieee80211com *ic = vap->iv_ic;
265 - struct sta_table *st = ss->ss_priv;
266 - const struct scanlist *scan;
267 - enum ieee80211_phymode mode;
268 -
269 - ss->ss_last = 0;
270 - /*
271 - * Use the table of ordered channels to construct the list
272 - * of channels for scanning. Any channels in the ordered
273 - * list not in the master list will be discarded.
274 - */
275 - for (scan = staScanTable; scan->list != NULL; scan++) {
276 - mode = scan->mode;
277 - if (vap->iv_des_mode != IEEE80211_MODE_AUTO) {
278 - /*
279 - * If a desired mode was specified, scan only
280 - * channels that satisfy that constraint.
281 - */
282 - if (vap->iv_des_mode != mode) {
283 - /*
284 - * The scan table marks 2.4Ghz channels as b
285 - * so if the desired mode is 11g, then use
286 - * the 11b channel list but upgrade the mode.
287 - */
288 - if (vap->iv_des_mode != IEEE80211_MODE_11G ||
289 - mode != IEEE80211_MODE_11B)
290 - continue;
291 - mode = IEEE80211_MODE_11G; /* upgrade */
292 - }
293 - } else {
294 - /*
295 - * This lets ieee80211_scan_add_channels
296 - * upgrade an 11b channel to 11g if available.
297 - */
298 - if (mode == IEEE80211_MODE_11B)
299 - mode = IEEE80211_MODE_AUTO;
300 - }
301 - /* XR does not operate on turbo channels */
302 - if ((vap->iv_flags & IEEE80211_F_XR) &&
303 - (mode == IEEE80211_MODE_TURBO_A ||
304 - mode == IEEE80211_MODE_TURBO_G))
305 - continue;
306 - /*
307 - * Add the list of the channels; any that are not
308 - * in the master channel list will be discarded.
309 - */
310 - add_channels(ic, ss, mode, scan->list, scan->count);
311 - }
312 - ss->ss_next = 0;
313 - /* XXX tunables */
314 - ss->ss_mindwell = msecs_to_jiffies(200); /* 200ms */
315 - ss->ss_maxdwell = msecs_to_jiffies(200); /* 200ms */
316 -
317 -#ifdef IEEE80211_DEBUG
318 - if (ieee80211_msg_scan(vap)) {
319 - printk("%s: scan set ", vap->iv_dev->name);
320 - ieee80211_scan_dump_channels(ss);
321 - printk(" dwell min %ld max %ld\n",
322 - ss->ss_mindwell, ss->ss_maxdwell);
323 - }
324 -#endif /* IEEE80211_DEBUG */
325 -
326 - st->st_newscan = 1;
327 -
328 - return 0;
329 -}
330
331 /*
332 * Select a channel to start an adhoc network on.
333 @@ -1405,7 +1115,7 @@ static const struct ieee80211_scanner ad
334 .scan_name = "default",
335 .scan_attach = sta_attach,
336 .scan_detach = sta_detach,
337 - .scan_start = adhoc_start,
338 + .scan_start = sta_start,
339 .scan_restart = sta_restart,
340 .scan_cancel = sta_cancel,
341 .scan_end = adhoc_pick_bss,
342 --- a/net80211/ieee80211.c
343 +++ b/net80211/ieee80211.c
344 @@ -278,6 +278,11 @@ ieee80211_ifattach(struct ieee80211com *
345 ("channel with bogus ieee number %u", c->ic_ieee));
346 setbit(ic->ic_chan_avail, c->ic_ieee);
347
348 + if (c->ic_scanflags & IEEE80211_NOSCAN_DEFAULT)
349 + c->ic_scanflags |= IEEE80211_NOSCAN_SET;
350 + else
351 + c->ic_scanflags &= ~IEEE80211_NOSCAN_SET;
352 +
353 /* Identify mode capabilities. */
354 if (IEEE80211_IS_CHAN_A(c))
355 ic->ic_modecaps |= 1 << IEEE80211_MODE_11A;
356 @@ -1447,10 +1452,6 @@ ieee80211_media_change(struct net_device
357 vap->iv_fixed_rate = newrate; /* fixed TX rate */
358 error = -ENETRESET;
359 }
360 - if (vap->iv_des_mode != newmode) {
361 - vap->iv_des_mode = newmode; /* desired PHY mode */
362 - error = -ENETRESET;
363 - }
364 return error;
365 }
366 EXPORT_SYMBOL(ieee80211_media_change);
367 --- a/net80211/_ieee80211.h
368 +++ b/net80211/_ieee80211.h
369 @@ -132,6 +132,11 @@ enum ieee80211_scanmode {
370 IEEE80211_SCAN_FIRST = 2, /* take first suitable candidate */
371 };
372
373 +enum ieee80211_scanflags {
374 + IEEE80211_NOSCAN_DEFAULT = (1 << 0),
375 + IEEE80211_NOSCAN_SET = (1 << 1),
376 +};
377 +
378 /*
379 * Channels are specified by frequency and attributes.
380 */
381 @@ -142,6 +147,7 @@ struct ieee80211_channel {
382 int8_t ic_maxregpower; /* maximum regulatory tx power in dBm */
383 int8_t ic_maxpower; /* maximum tx power in dBm */
384 int8_t ic_minpower; /* minimum tx power in dBm */
385 + u_int8_t ic_scanflags;
386 };
387
388 #define IEEE80211_CHAN_MAX 255
389 --- a/net80211/ieee80211_ioctl.h
390 +++ b/net80211/ieee80211_ioctl.h
391 @@ -555,6 +555,7 @@ struct ieee80211req_scan_result {
392 #define IEEE80211_IOCTL_WDSADDMAC (SIOCIWFIRSTPRIV+26)
393 #define IEEE80211_IOCTL_WDSDELMAC (SIOCIWFIRSTPRIV+28)
394 #define IEEE80211_IOCTL_KICKMAC (SIOCIWFIRSTPRIV+30)
395 +#define IEEE80211_IOCTL_SETSCANLIST (SIOCIWFIRSTPRIV+31)
396
397 enum {
398 IEEE80211_WMMPARAMS_CWMIN = 1,
399 --- a/net80211/ieee80211_scan_ap.c
400 +++ b/net80211/ieee80211_scan_ap.c
401 @@ -105,11 +105,6 @@ struct scan_entry {
402 };
403
404 struct ap_state {
405 - unsigned int as_vap_desired_mode; /* Used for channel selection,
406 - * vap->iv_des_mode */
407 - unsigned int as_required_mode; /* Used for channel selection,
408 - * filtered version of
409 - * as_vap_desired_mode */
410 int as_maxrssi[IEEE80211_CHAN_MAX]; /* Used for channel selection */
411
412 /* These fields are just for scan caching for returning responses to
413 @@ -129,131 +124,7 @@ struct ap_state {
414
415 static int ap_flush(struct ieee80211_scan_state *);
416 static void action_tasklet(IEEE80211_TQUEUE_ARG);
417 -static struct ieee80211_channel *find11gchannel(struct ieee80211com *ic,
418 - int i, int freq);
419
420 -static const u_int chanflags[] = {
421 - IEEE80211_CHAN_B, /* IEEE80211_MODE_AUTO */
422 - IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
423 - IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
424 - IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
425 - IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
426 - IEEE80211_CHAN_A, /* IEEE80211_MODE_TURBO_A */ /* for turbo mode
427 - * look for AP in
428 - * normal channel
429 - */
430 - IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_TURBO_G */
431 - IEEE80211_CHAN_ST, /* IEEE80211_MODE_TURBO_STATIC_A */
432 -};
433 -
434 -static const u_int16_t rcl1[] = /* 8 FCC channel: 52, 56, 60, 64,
435 - * 36, 40, 44, 48 */
436 -{ 5260, 5280, 5300, 5320, 5180, 5200, 5220, 5240 };
437 -static const u_int16_t rcl2[] = /* 4 MKK channels: 34, 38, 42, 46 */
438 -{ 5170, 5190, 5210, 5230 };
439 -static const u_int16_t rcl3[] = /* 2.4Ghz ch: 1,6,11,7,13 */
440 -{ 2412, 2437, 2462, 2442, 2472 };
441 -static const u_int16_t rcl4[] = /* 5 FCC channel: 149, 153, 161, 165 */
442 -{ 5745, 5765, 5785, 5805, 5825 };
443 -static const u_int16_t rcl7[] = /* 11 ETSI channel: 100, 104, 108, 112,
444 - * 116, 120, 124, 128,
445 - * 132, 136, 140 */
446 -{ 5500, 5520, 5540, 5560, 5580, 5600, 5620, 5640, 5660, 5680, 5700 };
447 -static const u_int16_t rcl8[] = /* 2.4Ghz ch: 2,3,4,5,8,9,10,12 */
448 -{ 2417, 2422, 2427, 2432, 2447, 2452, 2457, 2467 };
449 -static const u_int16_t rcl9[] = /* 2.4Ghz ch: 14 */
450 -{ 2484 };
451 -static const u_int16_t rcl10[] = /* Added Korean channels 2312-2372 */
452 -{ 2312, 2317, 2322, 2327, 2332, 2337, 2342, 2347, 2352, 2357, 2362, 2367, 2372 };
453 -static const u_int16_t rcl11[] = /* Added Japan channels in 4.9/5.0 spectrum */
454 -{ 5040, 5060, 5080, 4920, 4940, 4960, 4980 };
455 -#ifdef ATH_TURBO_SCAN
456 -static const u_int16_t rcl5[] = /* 3 static turbo channels */
457 -{ 5210, 5250, 5290 };
458 -static const u_int16_t rcl6[] = /* 2 static turbo channels */
459 -{ 5760, 5800 };
460 -static const u_int16_t rcl6x[] = /* 4 FCC3 turbo channels */
461 -{ 5540, 5580, 5620, 5660 };
462 -static const u_int16_t rcl12[] = /* 2.4Ghz Turbo channel 6 */
463 -{ 2437 };
464 -static const u_int16_t rcl13[] = /* dynamic Turbo channels */
465 -{ 5200, 5240, 5280, 5765, 5805 };
466 -#endif /* ATH_TURBO_SCAN */
467 -
468 -struct scanlist {
469 - u_int16_t mode;
470 - u_int16_t count;
471 - const u_int16_t *list;
472 -};
473 -
474 -#define IEEE80211_MODE_TURBO_STATIC_A IEEE80211_MODE_MAX
475 -#define X(a) .count = ARRAY_SIZE(a), .list = a
476 -
477 -static const struct scanlist staScanTable[] = {
478 - { IEEE80211_MODE_11B, X(rcl3) },
479 - { IEEE80211_MODE_11A, X(rcl1) },
480 - { IEEE80211_MODE_11A, X(rcl2) },
481 - { IEEE80211_MODE_11B, X(rcl8) },
482 - { IEEE80211_MODE_11B, X(rcl9) },
483 - { IEEE80211_MODE_11A, X(rcl4) },
484 -#ifdef ATH_TURBO_SCAN
485 - { IEEE80211_MODE_TURBO_STATIC_A, X(rcl5) },
486 - { IEEE80211_MODE_TURBO_STATIC_A, X(rcl6) },
487 - { IEEE80211_MODE_TURBO_A, X(rcl6x) },
488 - { IEEE80211_MODE_TURBO_A, X(rcl13) },
489 -#endif /* ATH_TURBO_SCAN */
490 - { IEEE80211_MODE_11A, X(rcl7) },
491 - { IEEE80211_MODE_11B, X(rcl10) },
492 - { IEEE80211_MODE_11A, X(rcl11) },
493 -#ifdef ATH_TURBO_SCAN
494 - { IEEE80211_MODE_TURBO_G, X(rcl12) },
495 -#endif /* ATH_TURBO_SCAN */
496 - { .list = NULL }
497 -};
498 -
499 -#undef X
500 -/* This function must be invoked with locks acquired */
501 -static void
502 -add_channels(struct ieee80211com *ic,
503 - struct ieee80211_scan_state *ss,
504 - enum ieee80211_phymode mode, const u_int16_t freq[], int nfreq)
505 -{
506 - struct ieee80211_channel *c, *cg;
507 - u_int modeflags;
508 - int i;
509 -
510 - KASSERT(mode < ARRAY_SIZE(chanflags), ("Unexpected mode %u", mode));
511 - modeflags = chanflags[mode];
512 - for (i = 0; i < nfreq; i++) {
513 - c = ieee80211_find_channel(ic, freq[i], modeflags);
514 - if ((c == NULL) || isclr(ic->ic_chan_active, c->ic_ieee))
515 - continue;
516 - if (mode == IEEE80211_MODE_AUTO) {
517 - /* XXX special-case 11b/g channels so we select
518 - * the g channel if both are present. */
519 - if (IEEE80211_IS_CHAN_B(c) &&
520 - (cg = find11gchannel(ic, i, c->ic_freq)) != NULL)
521 - c = cg;
522 - }
523 - if (ss->ss_last >= IEEE80211_SCAN_MAX)
524 - break;
525 - ss->ss_chans[ss->ss_last++] = c;
526 - }
527 -}
528 -
529 -/* This function must be invoked with locks acquired */
530 -static int
531 -checktable(const struct scanlist *scan, const struct ieee80211_channel *c)
532 -{
533 - int i;
534 -
535 - for (; scan->list != NULL; scan++) {
536 - for (i = 0; i < scan->count; i++)
537 - if (scan->list[i] == c->ic_freq)
538 - return 1;
539 - }
540 - return 0;
541 -}
542
543 /*
544 * Attach prior to any scanning work.
545 @@ -327,29 +198,6 @@ saveie(u_int8_t **iep, const u_int8_t *i
546 ieee80211_saveie(iep, ie);
547 }
548
549 -/* This function must be invoked with locks acquired */
550 -static struct ieee80211_channel *
551 -find11gchannel(struct ieee80211com *ic, int i, int freq)
552 -{
553 - struct ieee80211_channel *c;
554 - int j;
555 -
556 - /* The normal ordering in the channel list is b channel
557 - * immediately followed by g so optimize the search for
558 - * this. We'll still do a full search just in case. */
559 - for (j = i + 1; j < ic->ic_nchans; j++) {
560 - c = &ic->ic_channels[j];
561 - if ((c->ic_freq == freq) && IEEE80211_IS_CHAN_ANYG(c))
562 - return c;
563 - }
564 - for (j = 0; j < i; j++) {
565 - c = &ic->ic_channels[j];
566 - if ((c->ic_freq == freq) && IEEE80211_IS_CHAN_ANYG(c))
567 - return c;
568 - }
569 - return NULL;
570 -}
571 -
572 /*
573 * Start an ap scan by populating the channel list.
574 */
575 @@ -358,90 +206,15 @@ ap_start(struct ieee80211_scan_state *ss
576 {
577 struct ap_state *as = ss->ss_priv;
578 struct ieee80211com *ic = NULL;
579 - const struct scanlist *sl = NULL;
580 - struct ieee80211_channel *c = NULL;
581 int i;
582 unsigned int mode = 0;
583
584 SCAN_AP_LOCK_IRQ(as);
585 ic = vap->iv_ic;
586 /* Determine mode flags to match, or leave zero for auto mode */
587 - as->as_vap_desired_mode = vap->iv_des_mode;
588 - as->as_required_mode = 0;
589 - if (as->as_vap_desired_mode != IEEE80211_MODE_AUTO) {
590 - as->as_required_mode = chanflags[as->as_vap_desired_mode];
591 - if ((vap->iv_ath_cap & IEEE80211_ATHC_TURBOP) &&
592 - (as->as_required_mode != IEEE80211_CHAN_ST)) {
593 - /* Fixup for dynamic turbo flags */
594 - if (as->as_vap_desired_mode == IEEE80211_MODE_11G)
595 - as->as_required_mode = IEEE80211_CHAN_108G;
596 - else
597 - as->as_required_mode = IEEE80211_CHAN_108A;
598 - }
599 - }
600 -
601 ss->ss_last = 0;
602 - /* Use the table of ordered channels to construct the list
603 - * of channels for scanning. Any channels in the ordered
604 - * list not in the master list will be discarded. */
605 - for (sl = staScanTable; sl->list != NULL; sl++) {
606 - mode = sl->mode;
607 -
608 - /* The scan table marks 2.4Ghz channels as b
609 - * so if the desired mode is 11g, then use
610 - * the 11b channel list but upgrade the mode. */
611 - if (as->as_vap_desired_mode &&
612 - (as->as_vap_desired_mode != mode) &&
613 - (as->as_vap_desired_mode == IEEE80211_MODE_11G) &&
614 - (mode == IEEE80211_MODE_11B))
615 - mode = IEEE80211_MODE_11G;
616 -
617 - /* If we are in "AUTO" mode, upgrade the mode to auto.
618 - * This lets add_channels upgrade an 11b channel to
619 - * 11g if available. */
620 - if (!as->as_vap_desired_mode && (mode == IEEE80211_MODE_11B))
621 - mode = IEEE80211_MODE_AUTO;
622 -
623 - /* Add the list of the channels; any that are not
624 - * in the master channel list will be discarded. */
625 - add_channels(ic, ss, mode, sl->list, sl->count);
626 - }
627 -
628 - /* Add the channels from the ic (from HAL) that are not present
629 - * in the staScanTable, assuming they pass the sanity checks... */
630 - for (i = 0; i < ic->ic_nchans; i++) {
631 - c = &ic->ic_channels[i];
632 -
633 - /* XR is not supported on turbo channels */
634 - if (IEEE80211_IS_CHAN_TURBO(c) && vap->iv_flags & IEEE80211_F_XR)
635 - continue;
636 -
637 - /* Dynamic channels are scanned in base mode */
638 - if (!as->as_required_mode && !IEEE80211_IS_CHAN_ST(c))
639 - continue;
640 -
641 - /* Use any 11g channel instead of 11b one. */
642 - if (vap->iv_des_mode == IEEE80211_MODE_AUTO &&
643 - IEEE80211_IS_CHAN_B(c) &&
644 - find11gchannel(ic, i, c->ic_freq))
645 - continue;
646 -
647 - /* Do not add channels already put into the scan list by the
648 - * scan table - these have already been filtered by mode
649 - * and for whether they are in the active channel list. */
650 - if (checktable(staScanTable, c))
651 - continue;
652 -
653 - /* Make sure the channel is active */
654 - if ((c == NULL) || isclr(ic->ic_chan_active, c->ic_ieee))
655 - continue;
656 + ieee80211_scan_add_channels(ic, ss, vap->iv_des_mode);
657
658 - /* Don't overrun */
659 - if (ss->ss_last >= IEEE80211_SCAN_MAX)
660 - break;
661 -
662 - ss->ss_chans[ss->ss_last++] = c;
663 - }
664 ss->ss_next = 0;
665 /* XXX tunables */
666 ss->ss_mindwell = msecs_to_jiffies(200); /* 200ms */
667 @@ -761,18 +534,6 @@ pick_channel(struct ieee80211_scan_state
668 if (IEEE80211_IS_CHAN_RADAR(c->chan))
669 continue;
670
671 - /* Do not select 802.11a ST if mode is specified and is not
672 - * 802.11a ST */
673 - if (as->as_required_mode &&
674 - IEEE80211_IS_CHAN_STURBO(c->chan) &&
675 - (as->as_vap_desired_mode != IEEE80211_MODE_TURBO_STATIC_A))
676 - continue;
677 -
678 - /* Verify mode matches any fixed mode specified */
679 - if((c->chan->ic_flags & as->as_required_mode) !=
680 - as->as_required_mode)
681 - continue;
682 -
683 if ((ic->ic_bsschan != NULL) &&
684 (ic->ic_bsschan != IEEE80211_CHAN_ANYC)) {
685
686 --- a/net80211/ieee80211_scan.c
687 +++ b/net80211/ieee80211_scan.c
688 @@ -958,6 +958,80 @@ ieee80211_scan_flush(struct ieee80211com
689 }
690 }
691
692 +static const u_int chanflags[] = {
693 + 0, /* IEEE80211_MODE_AUTO */
694 + IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
695 + IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
696 + IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
697 + IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
698 + IEEE80211_CHAN_A, /* IEEE80211_MODE_TURBO_A */ /* for turbo mode look for AP in normal channel */
699 + IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_TURBO_G */
700 + IEEE80211_CHAN_ST, /* IEEE80211_MODE_TURBO_STATIC_A */
701 +};
702 +
703 +static struct ieee80211_channel *
704 +find11gchannel(struct ieee80211com *ic, int i, int freq)
705 +{
706 + struct ieee80211_channel *c;
707 + int j;
708 +
709 + /*
710 + * The normal ordering in the channel list is b channel
711 + * immediately followed by g so optimize the search for
712 + * this. We'll still do a full search just in case.
713 + */
714 + for (j = i+1; j < ic->ic_nchans; j++) {
715 + c = &ic->ic_channels[j];
716 + if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
717 + return c;
718 + }
719 + for (j = 0; j < i; j++) {
720 + c = &ic->ic_channels[j];
721 + if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
722 + return c;
723 + }
724 + return NULL;
725 +}
726 +
727 +
728 +void
729 +ieee80211_scan_add_channels(struct ieee80211com *ic,
730 + struct ieee80211_scan_state *ss,
731 + enum ieee80211_phymode mode)
732 +{
733 + struct ieee80211_channel *c, *cg;
734 + u_int modeflags;
735 + int i;
736 +
737 + KASSERT(mode < ARRAY_SIZE(chanflags), ("Unexpected mode %u", mode));
738 + modeflags = chanflags[mode];
739 + for (i = 0; i < ic->ic_nchans; i++) {
740 + c = &ic->ic_channels[i];
741 + if (c == NULL || isclr(ic->ic_chan_active, c->ic_ieee))
742 + continue;
743 + if (c->ic_scanflags & IEEE80211_NOSCAN_SET)
744 + continue;
745 + if (modeflags &&
746 + ((c->ic_flags & IEEE80211_CHAN_ALLTURBO) !=
747 + (modeflags & IEEE80211_CHAN_ALLTURBO)))
748 + continue;
749 + if (mode == IEEE80211_MODE_AUTO) {
750 + /*
751 + * XXX special-case 11b/g channels so we select
752 + * the g channel if both are present.
753 + */
754 + if (IEEE80211_IS_CHAN_B(c) &&
755 + (cg = find11gchannel(ic, i, c->ic_freq)) != NULL)
756 + continue;
757 + }
758 + if (ss->ss_last >= IEEE80211_SCAN_MAX)
759 + break;
760 + ss->ss_chans[ss->ss_last++] = c;
761 + }
762 +}
763 +EXPORT_SYMBOL(ieee80211_scan_add_channels);
764 +
765 +
766 /*
767 * Execute radar channel change. This is called when a radar/dfs
768 * signal is detected. AP mode only. Return 1 on success, 0 on
769 --- a/net80211/ieee80211_scan.h
770 +++ b/net80211/ieee80211_scan.h
771 @@ -219,4 +219,7 @@ void ieee80211_scanner_register(enum iee
772 void ieee80211_scanner_unregister(enum ieee80211_opmode,
773 const struct ieee80211_scanner *);
774 void ieee80211_scanner_unregister_all(const struct ieee80211_scanner *);
775 +void ieee80211_scan_add_channels(struct ieee80211com *ic,
776 + struct ieee80211_scan_state *ss,
777 + enum ieee80211_phymode mode);
778 #endif /* _NET80211_IEEE80211_SCAN_H_ */
779 --- a/net80211/ieee80211_wireless.c
780 +++ b/net80211/ieee80211_wireless.c
781 @@ -3873,6 +3873,106 @@ ieee80211_ioctl_kickmac(struct net_devic
782 return ieee80211_ioctl_setmlme(dev, info, w, (char *)&mlme);
783 }
784
785 +static inline void setflag(struct ieee80211_channel *c, int flag)
786 +{
787 + if (flag)
788 + c->ic_scanflags |= IEEE80211_NOSCAN_SET;
789 + else
790 + c->ic_scanflags &= ~IEEE80211_NOSCAN_SET;
791 +}
792 +
793 +static void setscanflag(struct ieee80211com *ic, int min, int max, int set)
794 +{
795 + int i;
796 +
797 + for (i = 0; i < ic->ic_nchans; i++) {
798 + struct ieee80211_channel *c = &ic->ic_channels[i];
799 +
800 + if (min == -1) {
801 + if (!(c->ic_scanflags & IEEE80211_NOSCAN_DEFAULT))
802 + setflag(c, set);
803 + } else if ((c->ic_freq >= min) && (c->ic_freq <= max)) {
804 + setflag(c, set);
805 + }
806 + }
807 +}
808 +
809 +static int
810 +ieee80211_ioctl_setscanlist(struct net_device *dev,
811 + struct iw_request_info *info,
812 + struct iw_point *data, char *extra)
813 +{
814 + struct ieee80211vap *vap = dev->priv;
815 + struct ieee80211com *ic = vap->iv_ic;
816 + char *s, *next;
817 + int val = 1;
818 +
819 + if (data->length <= 0)
820 + return -EINVAL;
821 +
822 + s = kmalloc(data->length + 1, GFP_KERNEL);
823 + if (!s)
824 + return -ENOMEM;
825 +
826 + memset(s, 0, data->length + 1);
827 + if (copy_from_user(s, data->pointer, data->length))
828 + return -EFAULT;
829 +
830 + s[data->length - 1] = '\0'; /* ensure null termination */
831 +
832 + switch(*s) {
833 + case '-':
834 + val = 1;
835 + break;
836 + case '+':
837 + val = 0;
838 + break;
839 + default:
840 + goto error;
841 + }
842 + s++;
843 + next = s;
844 + do {
845 + next = strchr(s, ',');
846 + if (next) {
847 + *next = 0;
848 + next++;
849 + }
850 + if (!strcmp(s, "ALL")) {
851 + setscanflag(ic, 0, 10000, val);
852 + } else if (!strcmp(s, "REG")) {
853 + setscanflag(ic, -1, -1, val);
854 + } else {
855 + int min, max;
856 + char *n, *end = NULL;
857 +
858 + n = strchr(s, '-');
859 + if (n) {
860 + *n = 0;
861 + n++;
862 + }
863 + min = simple_strtoul(s, &end, 10);
864 + if (end && *end)
865 + goto error;
866 + if (n) {
867 + max = simple_strtoul(n, &end, 10);
868 + if (end && *end)
869 + goto error;
870 + } else {
871 + max = min;
872 + }
873 + setscanflag(ic, min, max, val);
874 + }
875 + s = next;
876 + } while (next);
877 + return 0;
878 +
879 +error:
880 + if (s)
881 + kfree(s);
882 + return -EINVAL;
883 +}
884 +
885 static int
886 ieee80211_ioctl_addmac(struct net_device *dev, struct iw_request_info *info,
887 void *w, char *extra)
888 @@ -5656,6 +5756,8 @@ static const struct iw_priv_args ieee802
889 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "minrate"},
890 {IEEE80211_PARAM_MINRATE,
891 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_minrate"},
892 + { IEEE80211_IOCTL_SETSCANLIST,
893 + IW_PRIV_TYPE_CHAR | 255, 0, "setscanlist"},
894
895 #ifdef ATH_REVERSE_ENGINEERING
896 /*
897 @@ -5753,6 +5855,7 @@ static const iw_handler ieee80211_priv_h
898 set_priv(IEEE80211_IOCTL_WDSADDMAC, ieee80211_ioctl_wdsmac),
899 set_priv(IEEE80211_IOCTL_WDSDELMAC, ieee80211_ioctl_wdsdelmac),
900 set_priv(IEEE80211_IOCTL_KICKMAC, ieee80211_ioctl_kickmac),
901 + set_priv(IEEE80211_IOCTL_SETSCANLIST, ieee80211_ioctl_setscanlist),
902 #ifdef ATH_REVERSE_ENGINEERING
903 set_priv(IEEE80211_IOCTL_READREG, ieee80211_ioctl_readreg),
904 set_priv(IEEE80211_IOCTL_WRITEREG, ieee80211_ioctl_writereg),
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