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improve signal level/quality display
[openwrt.git] / target / linux / package / wlcompat / wlcompat.c
1 /*
2 * wlcompat.c
3 *
4 * Copyright (C) 2005 Mike Baker,
5 * Felix Fietkau <openwrt@nbd.name>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 *
21 * $Id$
22 */
23
24
25 #include <linux/config.h>
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/if_arp.h>
29 #include <asm/uaccess.h>
30 #include <linux/wireless.h>
31
32 #include <net/iw_handler.h>
33 #include <wlioctl.h>
34
35 static struct net_device *dev;
36 static unsigned short bss_force;
37 static struct iw_statistics wstats;
38 char buf[WLC_IOCTL_MAXLEN];
39
40 /* The frequency of each channel in MHz */
41 const long channel_frequency[] = {
42 2412, 2417, 2422, 2427, 2432, 2437, 2442,
43 2447, 2452, 2457, 2462, 2467, 2472, 2484
44 };
45 #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
46
47 typedef struct internal_wsec_key {
48 uint8 index; // 0x00
49 uint8 unknown_1; // 0x01
50 uint8 type; // 0x02
51 uint8 unknown_2[7]; // 0x03
52 uint8 len; // 0x0a
53 uint8 pad[3];
54 char data[32]; // 0x0e
55 } wkey;
56
57
58 static int wlcompat_private_ioctl(struct net_device *dev,
59 struct iw_request_info *info,
60 union iwreq_data *wrqu,
61 char *extra);
62 #ifdef DEBUG
63 void print_buffer(int len, unsigned char *buf);
64 #endif
65
66 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
67 {
68 mm_segment_t old_fs = get_fs();
69 struct ifreq ifr;
70 int ret;
71 wl_ioctl_t ioc;
72 ioc.cmd = cmd;
73 ioc.buf = buf;
74 ioc.len = len;
75 strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
76 ifr.ifr_data = (caddr_t) &ioc;
77 set_fs(KERNEL_DS);
78 ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
79 set_fs (old_fs);
80 return ret;
81 }
82
83 static int wl_set_val(struct net_device *dev, char *var, void *val, int len)
84 {
85 char buf[128];
86 int buf_len;
87 int ret;
88
89 /* check for overflow */
90 if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
91 return -1;
92
93 strcpy(buf, var);
94 buf_len += 1;
95
96 /* append int value onto the end of the name string */
97 memcpy(&(buf[buf_len]), val, len);
98 buf_len += len;
99
100 ret = wl_ioctl(dev, WLC_SET_VAR, buf, buf_len);
101 return ret;
102 }
103
104 static int wl_get_val(struct net_device *dev, char *var, void *val, int len)
105 {
106 char buf[128];
107 int buf_len;
108 int ret;
109
110 /* check for overflow */
111 if ((buf_len = strlen(var)) + 1 > sizeof(buf) || len > sizeof(buf))
112 return -1;
113
114 strcpy(buf, var);
115 if (ret = wl_ioctl(dev, WLC_GET_VAR, buf, buf_len + len))
116 return ret;
117
118 memcpy(val, buf, len);
119 return 0;
120 }
121
122 int get_primary_key(struct net_device *dev)
123 {
124 int key, val;
125
126 for (key = val = 0; (key < 4) && (val == 0); key++) {
127 val = key;
128 if (wl_ioctl(dev, WLC_GET_KEY_PRIMARY, &val, sizeof(val)) < 0)
129 return -EINVAL;
130 }
131 return key;
132 }
133
134
135 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
136 char *extra)
137 {
138 int i, k;
139 struct iw_range *range;
140
141 range = (struct iw_range *) extra;
142 bzero(extra, sizeof(struct iw_range));
143
144 range->we_version_compiled = WIRELESS_EXT;
145 range->we_version_source = WIRELESS_EXT;
146
147 range->min_nwid = range->max_nwid = 0;
148
149 range->num_channels = NUM_CHANNELS;
150 k = 0;
151 for (i = 0; i < NUM_CHANNELS; i++) {
152 range->freq[k].i = i + 1;
153 range->freq[k].m = channel_frequency[i] * 100000;
154 range->freq[k].e = 1;
155 k++;
156 if (k >= IW_MAX_FREQUENCIES)
157 break;
158 }
159 range->num_frequency = k;
160 range->sensitivity = 3;
161
162 /* nbd: don't know what this means, but other drivers set it this way */
163 range->pmp_flags = IW_POWER_PERIOD;
164 range->pmt_flags = IW_POWER_TIMEOUT;
165 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
166
167 range->min_pmp = 0;
168 range->max_pmp = 65535000;
169 range->min_pmt = 0;
170 range->max_pmt = 65535 * 1000;
171
172 range->max_qual.qual = 0;
173 range->max_qual.level = 0;
174 range->max_qual.noise = 0;
175
176 range->min_rts = 0;
177 if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
178 range->max_rts = 2347;
179
180 range->min_frag = 256;
181
182 if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
183 range->max_frag = 2346;
184
185 range->txpower_capa = IW_TXPOW_DBM;
186
187 return 0;
188 }
189
190
191 static int wlcompat_set_scan(struct net_device *dev,
192 struct iw_request_info *info,
193 union iwreq_data *wrqu,
194 char *extra)
195 {
196 int ap = 0, oldap = 0;
197 wl_scan_params_t params;
198
199 memset(&params, 0, sizeof(params));
200
201 /* use defaults (same parameters as wl scan) */
202 memset(&params.bssid, 0xff, sizeof(params.bssid));
203 params.bss_type = DOT11_BSSTYPE_ANY;
204 params.scan_type = -1;
205 params.nprobes = -1;
206 params.active_time = -1;
207 params.passive_time = -1;
208 params.home_time = -1;
209
210 /* can only scan in STA mode */
211 wl_ioctl(dev, WLC_GET_AP, &oldap, sizeof(oldap));
212 if (oldap > 0)
213 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
214
215 if (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)
216 return -EINVAL;
217
218 if (oldap > 0)
219 wl_ioctl(dev, WLC_SET_AP, &oldap, sizeof(oldap));
220
221 return 0;
222 }
223
224
225 struct iw_statistics *wlcompat_get_wireless_stats(struct net_device *dev)
226 {
227 wl_bss_info_t *bss_info = (wl_bss_info_t *) buf;
228 get_pktcnt_t pkt;
229 unsigned int rssi, noise, ap;
230
231 memset(&wstats, 0, sizeof(wstats));
232 memset(&pkt, 0, sizeof(pkt));
233 memset(buf, 0, sizeof(buf));
234 bss_info->version = 0x2000;
235 wl_ioctl(dev, WLC_GET_BSS_INFO, bss_info, WLC_IOCTL_MAXLEN);
236 wl_ioctl(dev, WLC_GET_PKTCNTS, &pkt, sizeof(pkt));
237
238 rssi = 0;
239 if ((wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap) {
240 if (wl_ioctl(dev, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
241 noise = 0;
242 } else {
243 // somehow the structure doesn't fit here
244 rssi = buf[82];
245 noise = buf[84];
246 }
247 rssi = (rssi == 0 ? 1 : rssi);
248 wstats.qual.updated = 0x10;
249 if (rssi <= 1)
250 wstats.qual.updated |= 0x20;
251 if (noise <= 1)
252 wstats.qual.updated |= 0x40;
253
254 if ((wstats.qual.updated & 0x60) == 0x60)
255 return NULL;
256
257 wstats.qual.level = rssi;
258 wstats.qual.noise = noise;
259 wstats.discard.misc = pkt.rx_bad_pkt;
260 wstats.discard.retries = pkt.tx_bad_pkt;
261
262 return &wstats;
263 }
264
265 static int wlcompat_get_scan(struct net_device *dev,
266 struct iw_request_info *info,
267 union iwreq_data *wrqu,
268 char *extra)
269 {
270 wl_scan_results_t *results = (wl_scan_results_t *) buf;
271 wl_bss_info_t *bss_info;
272 char *info_ptr;
273 char *current_ev = extra;
274 char *current_val;
275 char *end_buf = extra + IW_SCAN_MAX_DATA;
276 struct iw_event iwe;
277 int i, j;
278 int rssi, noise;
279
280 results->buflen = WLC_IOCTL_MAXLEN - sizeof(wl_scan_results_t);
281
282 if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
283 return -EAGAIN;
284
285 bss_info = &(results->bss_info[0]);
286 info_ptr = (char *) bss_info;
287 for (i = 0; i < results->count; i++) {
288
289 /* send the cell address (must be sent first) */
290 iwe.cmd = SIOCGIWAP;
291 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
292 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
293 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
294
295 /* send the ESSID */
296 iwe.cmd = SIOCGIWESSID;
297 iwe.u.data.length = bss_info->SSID_len;
298 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
299 iwe.u.data.length = IW_ESSID_MAX_SIZE;
300 iwe.u.data.flags = 1;
301 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
302
303 /* send frequency/channel info */
304 iwe.cmd = SIOCGIWFREQ;
305 iwe.u.freq.e = 0;
306 iwe.u.freq.m = bss_info->channel;
307 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
308
309 /* add quality statistics */
310 iwe.cmd = IWEVQUAL;
311 iwe.u.qual.qual = 0;
312 iwe.u.qual.level = bss_info->RSSI;
313 iwe.u.qual.noise = bss_info->phy_noise;
314 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
315
316 /* send rate information */
317 iwe.cmd = SIOCGIWRATE;
318 current_val = current_ev + IW_EV_LCP_LEN;
319 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
320
321 for(j = 0 ; j < bss_info->rateset.count ; j++) {
322 iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
323 current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
324 }
325 if((current_val - current_ev) > IW_EV_LCP_LEN)
326 current_ev = current_val;
327
328 info_ptr += sizeof(wl_bss_info_t);
329 if (bss_info->ie_length % 4)
330 info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
331 else
332 info_ptr += bss_info->ie_length;
333 bss_info = (wl_bss_info_t *) info_ptr;
334 }
335
336 wrqu->data.length = (current_ev - extra);
337 wrqu->data.flags = 0;
338
339 return 0;
340 }
341
342 static int wlcompat_ioctl(struct net_device *dev,
343 struct iw_request_info *info,
344 union iwreq_data *wrqu,
345 char *extra)
346 {
347 switch (info->cmd) {
348 case SIOCGIWNAME:
349 strcpy(wrqu->name, "IEEE 802.11-DS");
350 break;
351 case SIOCGIWFREQ:
352 {
353 channel_info_t ci;
354
355 if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
356 return -EINVAL;
357
358 wrqu->freq.m = ci.target_channel;
359 wrqu->freq.e = 0;
360 break;
361 }
362 case SIOCSIWFREQ:
363 {
364 if (wrqu->freq.m == -1) {
365 wrqu->freq.m = 0;
366 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
367 return -EINVAL;
368 } else {
369 if (wrqu->freq.e == 1) {
370 int channel = 0;
371 int f = wrqu->freq.m / 100000;
372 while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
373 channel++;
374
375 if (channel == NUM_CHANNELS) // channel not found
376 return -EINVAL;
377
378 wrqu->freq.e = 0;
379 wrqu->freq.m = channel + 1;
380 }
381 if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
382 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
383 return -EINVAL;
384 } else {
385 return -EINVAL;
386 }
387 }
388 break;
389 }
390 case SIOCSIWAP:
391 {
392 int ap = 0;
393 int infra = 0;
394 rw_reg_t reg;
395
396 memset(&reg, 0, sizeof(reg));
397
398 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
399 return -EINVAL;
400
401 if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
402 return -EINVAL;
403
404 if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
405 return -EINVAL;
406
407 if (!infra) {
408 wl_ioctl(dev, WLC_SET_BSSID, wrqu->ap_addr.sa_data, 6);
409
410 reg.size = 4;
411 reg.byteoff = 0x184;
412 reg.val = bss_force << 16 | bss_force;
413 wl_ioctl(dev, WLC_W_REG, &reg, sizeof(reg));
414
415 reg.byteoff = 0x180;
416 wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
417 reg.val = bss_force << 16;
418 wl_ioctl(dev, WLC_W_REG, &reg, sizeof(reg));
419 }
420
421 if (wl_ioctl(dev, ((ap || !infra) ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0)
422 return -EINVAL;
423
424 break;
425 }
426 case SIOCGIWAP:
427 {
428 #ifdef DEBUG
429 rw_reg_t reg;
430 memset(&reg, 0, sizeof(reg));
431
432 reg.size = 4;
433 reg.byteoff = 0x184;
434 wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
435 printk("bss time = 0x%08x", reg.val);
436
437 reg.byteoff = 0x180;
438 wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
439 printk("%08x\n", reg.val);
440 #endif
441
442 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
443 if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
444 return -EINVAL;
445 break;
446 }
447 case SIOCGIWESSID:
448 {
449 wlc_ssid_t ssid;
450
451 if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
452 return -EINVAL;
453
454 wrqu->essid.flags = wrqu->data.flags = 1;
455 wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
456 memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
457 break;
458 }
459 case SIOCSIWESSID:
460 {
461 wlc_ssid_t ssid;
462 memset(&ssid, 0, sizeof(ssid));
463 ssid.SSID_len = strlen(extra);
464 if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
465 ssid.SSID_len = WLC_ESSID_MAX_SIZE;
466 memcpy(ssid.SSID, extra, ssid.SSID_len);
467 if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
468 return -EINVAL;
469 break;
470 }
471 case SIOCGIWRTS:
472 {
473 if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
474 return -EINVAL;
475 break;
476 }
477 case SIOCSIWRTS:
478 {
479 if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
480 return -EINVAL;
481 break;
482 }
483 case SIOCGIWFRAG:
484 {
485 if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
486 return -EINVAL;
487 break;
488 }
489 case SIOCSIWFRAG:
490 {
491 if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
492 return -EINVAL;
493 break;
494 }
495 case SIOCGIWTXPOW:
496 {
497 int radio;
498
499 wl_ioctl(dev, WLC_GET_RADIO, &radio, sizeof(int));
500
501 if (wl_get_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
502 return -EINVAL;
503
504 wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
505 wrqu->txpower.value /= 4;
506
507 wrqu->txpower.fixed = 0;
508 wrqu->txpower.disabled = radio;
509 wrqu->txpower.flags = IW_TXPOW_DBM;
510 break;
511 }
512 case SIOCSIWTXPOW:
513 {
514 /* This is weird: WLC_SET_RADIO with 1 as argument disables the radio */
515 int radio = wrqu->txpower.disabled;
516
517 wl_ioctl(dev, WLC_SET_RADIO, &radio, sizeof(int));
518
519 if (!wrqu->txpower.disabled && (wrqu->txpower.value > 0)) {
520 int value;
521
522 if (wl_get_val(dev, "qtxpower", &value, sizeof(int)) < 0)
523 return -EINVAL;
524
525 value &= WL_TXPWR_OVERRIDE;
526 wrqu->txpower.value *= 4;
527 wrqu->txpower.value |= value;
528
529 if (wrqu->txpower.flags != IW_TXPOW_DBM)
530 return -EINVAL;
531
532 if (wrqu->txpower.value > 0)
533 if (wl_set_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
534 return -EINVAL;
535 }
536 break;
537 }
538 case SIOCSIWENCODE:
539 {
540 int val = 0, wep = 1, wrestrict = 1;
541 int index = (wrqu->data.flags & IW_ENCODE_INDEX) - 1;
542
543 if (index < 0)
544 index = get_primary_key(dev);
545
546 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
547 wep = 0;
548 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
549 return -EINVAL;
550 return 0;
551 }
552
553 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
554 return -EINVAL;
555
556 if (wrqu->data.flags & IW_ENCODE_OPEN)
557 wrestrict = 0;
558
559 if (wrqu->data.pointer && (wrqu->data.length > 0) && (wrqu->data.length <= 16)) {
560 wl_wsec_key_t key;
561 memset(&key, 0, sizeof(key));
562
563 key.flags = WL_PRIMARY_KEY;
564 key.len = wrqu->data.length;
565 key.index = index;
566 memcpy(key.data, wrqu->data.pointer, wrqu->data.length);
567
568 if (wl_ioctl(dev, WLC_SET_KEY, &key, sizeof(key)) < 0)
569 return -EINVAL;
570 }
571
572 if (index >= 0)
573 wl_ioctl(dev, WLC_SET_KEY_PRIMARY, &index, sizeof(index));
574
575 if (wrestrict >= 0)
576 wl_ioctl(dev, WLC_SET_WEP_RESTRICT, &wrestrict, sizeof(wrestrict));
577
578 break;
579 }
580 case SIOCGIWENCODE:
581 {
582 int val;
583
584 if (wl_ioctl(dev, WLC_GET_WEP, &val, sizeof(val)) < 0)
585 return -EINVAL;
586
587
588 if (val > 0) {
589 int key = get_primary_key(dev);
590
591 wrqu->data.flags = IW_ENCODE_ENABLED;
592 if (key-- > 0) {
593 int *info_addr;
594 wkey *wep_key;
595
596 info_addr = (int *) dev->priv;
597 wep_key = (wkey *) ((*info_addr) + 0x2752 + (key * 0x110));
598
599 wrqu->data.flags |= key + 1;
600 wrqu->data.length = wep_key->len;
601
602 memset(extra, 0, 16);
603 memcpy(extra, wep_key->data, 16);
604 } else {
605 wrqu->data.flags |= IW_ENCODE_NOKEY;
606 }
607 } else {
608 wrqu->data.flags = IW_ENCODE_DISABLED;
609 }
610
611 break;
612 }
613 case SIOCGIWRANGE:
614 {
615 return wlcompat_ioctl_getiwrange(dev, extra);
616 break;
617 }
618 case SIOCSIWMODE:
619 {
620 int ap = -1, infra = -1, passive = 0, wet = 0;
621
622 switch (wrqu->mode) {
623 case IW_MODE_MONITOR:
624 passive = 1;
625 break;
626 case IW_MODE_ADHOC:
627 infra = 0;
628 ap = 0;
629 break;
630 case IW_MODE_MASTER:
631 infra = 1;
632 ap = 1;
633 break;
634 case IW_MODE_INFRA:
635 infra = 1;
636 ap = 0;
637 break;
638 case IW_MODE_REPEAT:
639 infra = 1;
640 ap = 0;
641 wet = 1;
642 break;
643
644 default:
645 return -EINVAL;
646 }
647
648 wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive));
649 wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive));
650 wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet));
651 if (ap >= 0)
652 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
653 if (infra >= 0)
654 wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra));
655
656 break;
657
658 }
659 case SIOCGIWMODE:
660 {
661 int ap, infra, wet, passive;
662
663 if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
664 return -EINVAL;
665 if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
666 return -EINVAL;
667 if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
668 return -EINVAL;
669 if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
670 return -EINVAL;
671
672 if (passive) {
673 wrqu->mode = IW_MODE_MONITOR;
674 } else if (!infra) {
675 wrqu->mode = IW_MODE_ADHOC;
676 } else {
677 if (ap) {
678 wrqu->mode = IW_MODE_MASTER;
679 } else {
680 if (wet) {
681 wrqu->mode = IW_MODE_REPEAT;
682 } else {
683 wrqu->mode = IW_MODE_INFRA;
684 }
685 }
686 }
687 break;
688 }
689 default:
690 {
691 if (info->cmd >= SIOCIWFIRSTPRIV)
692 return wlcompat_private_ioctl(dev, info, wrqu, extra);
693
694 return -EINVAL;
695 }
696 }
697
698 return 0;
699 }
700
701 static const iw_handler wlcompat_handler[] = {
702 NULL, /* SIOCSIWCOMMIT */
703 wlcompat_ioctl, /* SIOCGIWNAME */
704 NULL, /* SIOCSIWNWID */
705 NULL, /* SIOCGIWNWID */
706 wlcompat_ioctl, /* SIOCSIWFREQ */
707 wlcompat_ioctl, /* SIOCGIWFREQ */
708 wlcompat_ioctl, /* SIOCSIWMODE */
709 wlcompat_ioctl, /* SIOCGIWMODE */
710 NULL, /* SIOCSIWSENS */
711 NULL, /* SIOCGIWSENS */
712 NULL, /* SIOCSIWRANGE, unused */
713 wlcompat_ioctl, /* SIOCGIWRANGE */
714 NULL, /* SIOCSIWPRIV */
715 NULL, /* SIOCGIWPRIV */
716 NULL, /* SIOCSIWSTATS */
717 NULL, /* SIOCGIWSTATS */
718 iw_handler_set_spy, /* SIOCSIWSPY */
719 iw_handler_get_spy, /* SIOCGIWSPY */
720 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
721 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
722 wlcompat_ioctl, /* SIOCSIWAP */
723 wlcompat_ioctl, /* SIOCGIWAP */
724 NULL, /* -- hole -- */
725 NULL, /* SIOCGIWAPLIST */
726 wlcompat_set_scan, /* SIOCSIWSCAN */
727 wlcompat_get_scan, /* SIOCGIWSCAN */
728 wlcompat_ioctl, /* SIOCSIWESSID */
729 wlcompat_ioctl, /* SIOCGIWESSID */
730 NULL, /* SIOCSIWNICKN */
731 NULL, /* SIOCGIWNICKN */
732 NULL, /* -- hole -- */
733 NULL, /* -- hole -- */
734 NULL, /* SIOCSIWRATE */
735 NULL, /* SIOCGIWRATE */
736 wlcompat_ioctl, /* SIOCSIWRTS */
737 wlcompat_ioctl, /* SIOCGIWRTS */
738 wlcompat_ioctl, /* SIOCSIWFRAG */
739 wlcompat_ioctl, /* SIOCGIWFRAG */
740 wlcompat_ioctl, /* SIOCSIWTXPOW */
741 wlcompat_ioctl, /* SIOCGIWTXPOW */
742 NULL, /* SIOCSIWRETRY */
743 NULL, /* SIOCGIWRETRY */
744 wlcompat_ioctl, /* SIOCSIWENCODE */
745 wlcompat_ioctl, /* SIOCGIWENCODE */
746 };
747
748
749 #define WLCOMPAT_SET_MONITOR SIOCIWFIRSTPRIV + 0
750 #define WLCOMPAT_GET_MONITOR SIOCIWFIRSTPRIV + 1
751 #define WLCOMPAT_SET_TXPWR_LIMIT SIOCIWFIRSTPRIV + 2
752 #define WLCOMPAT_GET_TXPWR_LIMIT SIOCIWFIRSTPRIV + 3
753 #define WLCOMPAT_SET_ANTDIV SIOCIWFIRSTPRIV + 4
754 #define WLCOMPAT_GET_ANTDIV SIOCIWFIRSTPRIV + 5
755 #define WLCOMPAT_SET_TXANT SIOCIWFIRSTPRIV + 6
756 #define WLCOMPAT_GET_TXANT SIOCIWFIRSTPRIV + 7
757 #define WLCOMPAT_SET_BSS_FORCE SIOCIWFIRSTPRIV + 8
758 #define WLCOMPAT_GET_BSS_FORCE SIOCIWFIRSTPRIV + 9
759
760
761 static int wlcompat_private_ioctl(struct net_device *dev,
762 struct iw_request_info *info,
763 union iwreq_data *wrqu,
764 char *extra)
765 {
766 int *value = (int *) wrqu->name;
767
768 switch (info->cmd) {
769 case WLCOMPAT_SET_MONITOR:
770 {
771 if (wl_ioctl(dev, WLC_SET_MONITOR, value, sizeof(int)) < 0)
772 return -EINVAL;
773
774 break;
775 }
776 case WLCOMPAT_GET_MONITOR:
777 {
778 if (wl_ioctl(dev, WLC_GET_MONITOR, extra, sizeof(int)) < 0)
779 return -EINVAL;
780
781 break;
782 }
783 case WLCOMPAT_SET_TXPWR_LIMIT:
784 {
785 int val;
786
787
788 if (wl_get_val(dev, "qtxpower", &val, sizeof(int)) < 0)
789 return -EINVAL;
790
791 if (*extra > 0)
792 val |= WL_TXPWR_OVERRIDE;
793 else
794 val &= ~WL_TXPWR_OVERRIDE;
795
796 if (wl_set_val(dev, "qtxpower", &val, sizeof(int)) < 0)
797 return -EINVAL;
798
799 break;
800 }
801 case WLCOMPAT_GET_TXPWR_LIMIT:
802 {
803 if (wl_get_val(dev, "qtxpower", value, sizeof(int)) < 0)
804 return -EINVAL;
805
806 *value = ((*value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE ? 1 : 0);
807
808 break;
809 }
810 case WLCOMPAT_SET_ANTDIV:
811 {
812 if (wl_ioctl(dev, WLC_SET_ANTDIV, value, sizeof(int)) < 0)
813 return -EINVAL;
814
815 break;
816 }
817 case WLCOMPAT_GET_ANTDIV:
818 {
819 if (wl_ioctl(dev, WLC_GET_ANTDIV, extra, sizeof(int)) < 0)
820 return -EINVAL;
821
822 break;
823 }
824 case WLCOMPAT_SET_TXANT:
825 {
826 if (wl_ioctl(dev, WLC_SET_TXANT, value, sizeof(int)) < 0)
827 return -EINVAL;
828
829 break;
830 }
831 case WLCOMPAT_GET_TXANT:
832 {
833 if (wl_ioctl(dev, WLC_GET_TXANT, extra, sizeof(int)) < 0)
834 return -EINVAL;
835
836 break;
837 }
838 case WLCOMPAT_SET_BSS_FORCE:
839 {
840 bss_force = (unsigned short) *value;
841 break;
842 }
843 case WLCOMPAT_GET_BSS_FORCE:
844 {
845 *extra = (int) bss_force;
846 break;
847 }
848 default:
849 {
850 return -EINVAL;
851 }
852
853 }
854 return 0;
855 }
856
857 static const struct iw_priv_args wlcompat_private_args[] =
858 {
859 { WLCOMPAT_SET_MONITOR,
860 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
861 0,
862 "set_monitor"
863 },
864 { WLCOMPAT_GET_MONITOR,
865 0,
866 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
867 "get_monitor"
868 },
869 { WLCOMPAT_SET_TXPWR_LIMIT,
870 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
871 0,
872 "set_txpwr_force"
873 },
874 { WLCOMPAT_GET_TXPWR_LIMIT,
875 0,
876 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
877 "get_txpwr_force"
878 },
879 { WLCOMPAT_SET_ANTDIV,
880 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
881 0,
882 "set_antdiv"
883 },
884 { WLCOMPAT_GET_ANTDIV,
885 0,
886 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
887 "get_antdiv"
888 },
889 { WLCOMPAT_SET_TXANT,
890 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
891 0,
892 "set_txant"
893 },
894 { WLCOMPAT_GET_TXANT,
895 0,
896 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
897 "get_txant"
898 },
899 { WLCOMPAT_SET_BSS_FORCE,
900 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
901 0,
902 "set_bss_force"
903 },
904 { WLCOMPAT_GET_BSS_FORCE,
905 0,
906 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
907 "get_bss_force"
908 },
909 };
910
911 static const iw_handler wlcompat_private[] =
912 {
913 wlcompat_private_ioctl,
914 NULL
915 };
916
917
918 static const struct iw_handler_def wlcompat_handler_def =
919 {
920 .standard = (iw_handler *) wlcompat_handler,
921 .num_standard = sizeof(wlcompat_handler)/sizeof(iw_handler),
922 .private = wlcompat_private,
923 .num_private = 1,
924 .private_args = wlcompat_private_args,
925 .num_private_args = sizeof(wlcompat_private_args) / sizeof(wlcompat_private_args[0])
926 };
927
928
929 #ifdef DEBUG
930 void print_buffer(int len, unsigned char *buf) {
931 int x;
932 if (buf != NULL) {
933 for (x=0;x<len && x<180 ;x++) {
934 if ((x % 4) == 0)
935 printk(" ");
936 printk("%02X",buf[x]);
937 }
938 } else {
939 printk(" NULL");
940 }
941 printk("\n");
942
943 }
944 #endif
945 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
946 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
947 int ret = 0;
948 struct iwreq *iwr = (struct iwreq *) ifr;
949 struct iw_request_info info;
950
951 #ifdef DEBUG
952 printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
953 #endif
954
955 if (cmd >= SIOCIWFIRSTPRIV) {
956 info.cmd = cmd;
957 info.flags = 0;
958 ret = wlcompat_private_ioctl(dev, &info, &(iwr->u), (char *) &(iwr->u));
959 #ifdef DEBUG
960 } else if (cmd==SIOCDEVPRIVATE) {
961 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
962 unsigned char *buf = ioc->buf;
963 printk(" cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
964 printk(" send: ->");
965 print_buffer(ioc->len, buf);
966 ret = old_ioctl(dev,ifr,cmd);
967 printk(" recv: ->");
968 print_buffer(ioc->len, buf);
969 printk(" ret: %d\n", ret);
970 #endif
971 } else {
972 ret = old_ioctl(dev,ifr,cmd);
973 }
974 return ret;
975 }
976
977 static int __init wlcompat_init()
978 {
979 int found = 0, i;
980 char *devname = "eth0";
981 bss_force = 0;
982
983 while (!found && (dev = dev_get_by_name(devname))) {
984 if ((dev->wireless_handlers == NULL) && ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && i == WLC_IOCTL_MAGIC))
985 found = 1;
986 devname[3]++;
987 }
988
989 if (!found) {
990 printk("No Broadcom devices found.\n");
991 return -ENODEV;
992 }
993
994
995 old_ioctl = dev->do_ioctl;
996 dev->do_ioctl = new_ioctl;
997 dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
998 dev->get_wireless_stats = wlcompat_get_wireless_stats;
999 #ifdef DEBUG
1000 printk("broadcom driver private data: 0x%08x\n", dev->priv);
1001 #endif
1002 return 0;
1003 }
1004
1005 static void __exit wlcompat_exit()
1006 {
1007 dev->get_wireless_stats = NULL;
1008 dev->wireless_handlers = NULL;
1009 dev->do_ioctl = old_ioctl;
1010 return;
1011 }
1012
1013 EXPORT_NO_SYMBOLS;
1014 MODULE_AUTHOR("openwrt.org");
1015 MODULE_LICENSE("GPL");
1016
1017 module_init(wlcompat_init);
1018 module_exit(wlcompat_exit);
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