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add frameburst closes #1759
[openwrt.git] / package / broadcom-wl / src / wlcompat / wlcompat.c
1 /*
2 * wlcompat.c
3 *
4 * Copyright (C) 2005 Mike Baker
5 * Copyright (C) 2005-2007 Felix Fietkau <nbd@openwrt.org>
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/moduleparam.h>
28 #include <linux/init.h>
29 #include <linux/if_arp.h>
30 #include <linux/wireless.h>
31 #include <linux/timer.h>
32 #include <linux/delay.h>
33 #include <linux/random.h>
34 #include <net/iw_handler.h>
35 #include <asm/uaccess.h>
36
37 #include <typedefs.h>
38 #include <bcmutils.h>
39 #include <wlioctl.h>
40
41 char buf[WLC_IOCTL_MAXLEN];
42 static struct net_device *dev;
43 #ifndef DEBUG
44 static int random = 1;
45 #endif
46 #ifndef WL_WEXT
47 static struct iw_statistics wstats;
48 static int last_mode = -1;
49 static int scan_cur = 0;
50
51 /* The frequency of each channel in MHz */
52 const long channel_frequency[] = {
53 2412, 2417, 2422, 2427, 2432, 2437, 2442,
54 2447, 2452, 2457, 2462, 2467, 2472, 2484
55 };
56 #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
57 #endif
58
59 #define SCAN_RETRY_MAX 5
60 #define RNG_POLL_FREQ 1
61
62 typedef struct internal_wsec_key {
63 uint8 index; // 0x00
64 uint8 unknown_1; // 0x01
65 uint8 type; // 0x02
66 uint8 unknown_2[7]; // 0x03
67 uint8 len; // 0x0a
68 uint8 pad[3];
69 char data[32]; // 0x0e
70 } wkey;
71
72
73 #ifdef DEBUG
74 void print_buffer(int len, unsigned char *buf);
75 #endif
76
77 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
78 {
79 mm_segment_t old_fs = get_fs();
80 struct ifreq ifr;
81 int ret;
82 wl_ioctl_t ioc;
83 ioc.cmd = cmd;
84 ioc.buf = buf;
85 ioc.len = len;
86 strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
87 ifr.ifr_data = (caddr_t) &ioc;
88 set_fs(KERNEL_DS);
89 ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
90 set_fs (old_fs);
91 return ret;
92 }
93
94 #if !defined(DEBUG) || !defined(WL_WEXT)
95 static int
96 wl_iovar_getbuf(struct net_device *dev, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
97 {
98 int err;
99 uint namelen;
100 uint iolen;
101
102 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
103 iolen = namelen + paramlen;
104
105 /* check for overflow */
106 if (iolen > buflen)
107 return (BCME_BUFTOOSHORT);
108
109 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
110 memcpy((int8*)bufptr + namelen, param, paramlen);
111
112 err = wl_ioctl(dev, WLC_GET_VAR, bufptr, buflen);
113
114 return (err);
115 }
116
117 static int
118 wl_iovar_setbuf(struct net_device *dev, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
119 {
120 uint namelen;
121 uint iolen;
122
123 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
124 iolen = namelen + paramlen;
125
126 /* check for overflow */
127 if (iolen > buflen)
128 return (BCME_BUFTOOSHORT);
129
130 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
131 memcpy((int8*)bufptr + namelen, param, paramlen);
132
133 return wl_ioctl(dev, WLC_SET_VAR, bufptr, iolen);
134 }
135
136 static int
137 wl_iovar_set(struct net_device *dev, char *iovar, void *param, int paramlen)
138 {
139 char smbuf[WLC_IOCTL_SMLEN];
140
141 return wl_iovar_setbuf(dev, iovar, param, paramlen, smbuf, sizeof(smbuf));
142 }
143
144 static int
145 wl_iovar_get(struct net_device *dev, char *iovar, void *bufptr, int buflen)
146 {
147 char smbuf[WLC_IOCTL_SMLEN];
148 int ret;
149
150 /* use the return buffer if it is bigger than what we have on the stack */
151 if (buflen > sizeof(smbuf)) {
152 ret = wl_iovar_getbuf(dev, iovar, NULL, 0, bufptr, buflen);
153 } else {
154 ret = wl_iovar_getbuf(dev, iovar, NULL, 0, smbuf, sizeof(smbuf));
155 if (ret == 0)
156 memcpy(bufptr, smbuf, buflen);
157 }
158
159 return ret;
160 }
161
162 #ifdef notyet
163 /*
164 * format a bsscfg indexed iovar buffer
165 */
166 static int
167 wl_bssiovar_mkbuf(char *iovar, int bssidx, void *param, int paramlen, void *bufptr, int buflen,
168 int *plen)
169 {
170 char *prefix = "bsscfg:";
171 int8* p;
172 uint prefixlen;
173 uint namelen;
174 uint iolen;
175
176 prefixlen = strlen(prefix); /* length of bsscfg prefix */
177 namelen = strlen(iovar) + 1; /* length of iovar name + null */
178 iolen = prefixlen + namelen + sizeof(int) + paramlen;
179
180 /* check for overflow */
181 if (buflen < 0 || iolen > (uint)buflen) {
182 *plen = 0;
183 return BCME_BUFTOOSHORT;
184 }
185
186 p = (int8*)bufptr;
187
188 /* copy prefix, no null */
189 memcpy(p, prefix, prefixlen);
190 p += prefixlen;
191
192 /* copy iovar name including null */
193 memcpy(p, iovar, namelen);
194 p += namelen;
195
196 /* bss config index as first param */
197 memcpy(p, &bssidx, sizeof(int32));
198 p += sizeof(int32);
199
200 /* parameter buffer follows */
201 if (paramlen)
202 memcpy(p, param, paramlen);
203
204 *plen = iolen;
205 return 0;
206 }
207
208 /*
209 * set named & bss indexed driver variable to buffer value
210 */
211 static int
212 wl_bssiovar_setbuf(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
213 int buflen)
214 {
215 int err;
216 int iolen;
217
218 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
219 if (err)
220 return err;
221
222 return wl_ioctl(dev, WLC_SET_VAR, bufptr, iolen);
223 }
224
225 /*
226 * get named & bss indexed driver variable buffer value
227 */
228 static int
229 wl_bssiovar_getbuf(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
230 int buflen)
231 {
232 int err;
233 int iolen;
234
235 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
236 if (err)
237 return err;
238
239 return wl_ioctl(dev, WLC_GET_VAR, bufptr, buflen);
240 }
241
242 /*
243 * set named & bss indexed driver variable to buffer value
244 */
245 static int
246 wl_bssiovar_set(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen)
247 {
248 char smbuf[WLC_IOCTL_SMLEN];
249
250 return wl_bssiovar_setbuf(dev, iovar, bssidx, param, paramlen, smbuf, sizeof(smbuf));
251 }
252
253 /*
254 * get named & bss indexed driver variable buffer value
255 */
256 static int
257 wl_bssiovar_get(struct net_device *dev, char *iovar, int bssidx, void *outbuf, int len)
258 {
259 char smbuf[WLC_IOCTL_SMLEN];
260 int err;
261
262 /* use the return buffer if it is bigger than what we have on the stack */
263 if (len > (int)sizeof(smbuf)) {
264 err = wl_bssiovar_getbuf(dev, iovar, bssidx, NULL, 0, outbuf, len);
265 } else {
266 memset(smbuf, 0, sizeof(smbuf));
267 err = wl_bssiovar_getbuf(dev, iovar, bssidx, NULL, 0, smbuf, sizeof(smbuf));
268 if (err == 0)
269 memcpy(outbuf, smbuf, len);
270 }
271
272 return err;
273 }
274 #endif
275 #endif
276
277 #ifndef WL_WEXT
278
279 int get_primary_key(struct net_device *dev)
280 {
281 int key, val;
282
283 for (key = val = 0; (key < 4) && (val == 0); key++) {
284 val = key;
285 if (wl_ioctl(dev, WLC_GET_KEY_PRIMARY, &val, sizeof(val)) < 0)
286 return -EINVAL;
287 }
288 return key;
289 }
290
291
292 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
293 char *extra)
294 {
295 int i, k;
296 struct iw_range *range;
297
298 range = (struct iw_range *) extra;
299 memset(extra, 0, sizeof(struct iw_range));
300
301 range->we_version_compiled = WIRELESS_EXT;
302 range->we_version_source = WIRELESS_EXT;
303
304 range->min_nwid = range->max_nwid = 0;
305
306 range->num_channels = NUM_CHANNELS;
307 k = 0;
308 for (i = 0; i < NUM_CHANNELS; i++) {
309 range->freq[k].i = i + 1;
310 range->freq[k].m = channel_frequency[i] * 100000;
311 range->freq[k].e = 1;
312 k++;
313 if (k >= IW_MAX_FREQUENCIES)
314 break;
315 }
316 range->num_frequency = k;
317 range->sensitivity = 3;
318
319 /* nbd: don't know what this means, but other drivers set it this way */
320 range->pmp_flags = IW_POWER_PERIOD;
321 range->pmt_flags = IW_POWER_TIMEOUT;
322 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
323
324 range->min_pmp = 0;
325 range->max_pmp = 65535000;
326 range->min_pmt = 0;
327 range->max_pmt = 65535 * 1000;
328
329 range->max_qual.qual = 0;
330 range->max_qual.level = 0;
331 range->max_qual.noise = 0;
332
333 range->min_rts = 0;
334 if (wl_iovar_get(dev, "rtsthresh", &range->max_rts, sizeof(int)) < 0)
335 range->max_rts = 2347;
336
337 range->min_frag = 256;
338
339 if (wl_iovar_get(dev, "fragthresh", &range->max_frag, sizeof(int)) < 0)
340 range->max_frag = 2346;
341
342 range->txpower_capa = IW_TXPOW_DBM;
343
344 return 0;
345 }
346
347
348 static int wlcompat_set_scan(struct net_device *dev,
349 struct iw_request_info *info,
350 union iwreq_data *wrqu,
351 char *extra)
352 {
353 int ap = 0;
354 wl_scan_params_t params;
355
356 memset(&params, 0, sizeof(params));
357
358 /* use defaults (same parameters as wl scan) */
359 memset(&params.bssid, 0xff, sizeof(params.bssid));
360 params.bss_type = DOT11_BSSTYPE_ANY;
361 params.scan_type = -1;
362 params.nprobes = -1;
363 params.active_time = -1;
364 params.passive_time = -1;
365 params.home_time = -1;
366
367 /* can only scan in STA mode */
368 wl_ioctl(dev, WLC_GET_AP, &last_mode, sizeof(last_mode));
369 if (last_mode > 0) {
370 /* switch to ap mode, scan result query will switch back */
371 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
372
373 /* wait 250 msec after mode change */
374 set_current_state(TASK_INTERRUPTIBLE);
375 schedule_timeout(msecs_to_jiffies(250));
376 }
377
378 scan_cur = SCAN_RETRY_MAX;
379 while (scan_cur-- && (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)) {
380 /* sometimes the driver takes a few tries... */
381 set_current_state(TASK_INTERRUPTIBLE);
382 schedule_timeout(msecs_to_jiffies(250));
383 }
384
385 if (!scan_cur)
386 return -EINVAL;
387
388 scan_cur = 0;
389
390 /* wait at least 2 seconds for results */
391 set_current_state(TASK_INTERRUPTIBLE);
392 schedule_timeout(msecs_to_jiffies(2000));
393
394 return 0;
395 }
396
397
398 struct iw_statistics *wlcompat_get_wireless_stats(struct net_device *dev)
399 {
400 struct wl_bss_info *bss_info = (struct wl_bss_info *) buf;
401 get_pktcnt_t pkt;
402 unsigned int rssi, noise, ap;
403
404 memset(&wstats, 0, sizeof(wstats));
405 memset(&pkt, 0, sizeof(pkt));
406 memset(buf, 0, sizeof(buf));
407 bss_info->version = 0x2000;
408 wl_ioctl(dev, WLC_GET_BSS_INFO, bss_info, WLC_IOCTL_MAXLEN);
409 wl_ioctl(dev, WLC_GET_PKTCNTS, &pkt, sizeof(pkt));
410
411 rssi = 0;
412 if ((wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap) {
413 if (wl_ioctl(dev, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
414 noise = 0;
415 } else {
416 // somehow the structure doesn't fit here
417 rssi = buf[82];
418 noise = buf[84];
419 }
420 rssi = (rssi == 0 ? 1 : rssi);
421 wstats.qual.updated = 0x10;
422 if (rssi <= 1)
423 wstats.qual.updated |= 0x20;
424 if (noise <= 1)
425 wstats.qual.updated |= 0x40;
426
427 if ((wstats.qual.updated & 0x60) == 0x60)
428 return NULL;
429
430 wstats.qual.level = rssi;
431 wstats.qual.noise = noise;
432 wstats.discard.misc = pkt.rx_bad_pkt;
433 wstats.discard.retries = pkt.tx_bad_pkt;
434
435 return &wstats;
436 }
437
438 static int wlcompat_get_scan(struct net_device *dev,
439 struct iw_request_info *info,
440 union iwreq_data *wrqu,
441 char *extra)
442 {
443 wl_scan_results_t *results = (wl_scan_results_t *) buf;
444 wl_bss_info_t *bss_info;
445 char *info_ptr;
446 char *current_ev = extra;
447 char *current_val;
448 char *end_buf = extra + IW_SCAN_MAX_DATA;
449 struct iw_event iwe;
450 int i, j;
451 int rssi, noise;
452
453 memset(buf, 0, WLC_IOCTL_MAXLEN);
454 results->buflen = WLC_IOCTL_MAXLEN - sizeof(wl_scan_results_t);
455
456 if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
457 return -EAGAIN;
458
459 if ((results->count <= 0) && (scan_cur++ < SCAN_RETRY_MAX))
460 return -EAGAIN;
461
462 bss_info = &(results->bss_info[0]);
463 info_ptr = (char *) bss_info;
464 for (i = 0; i < results->count; i++) {
465 /* send the cell address (must be sent first) */
466 iwe.cmd = SIOCGIWAP;
467 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
468 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
469 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
470
471 /* send the ESSID */
472 iwe.cmd = SIOCGIWESSID;
473 iwe.u.data.length = bss_info->SSID_len;
474 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
475 iwe.u.data.length = IW_ESSID_MAX_SIZE;
476 iwe.u.data.flags = 1;
477 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
478
479 /* send mode */
480 if (bss_info->capability & (DOT11_CAP_ESS | DOT11_CAP_IBSS)) {
481 iwe.cmd = SIOCGIWMODE;
482 if (bss_info->capability & DOT11_CAP_ESS)
483 iwe.u.mode = IW_MODE_MASTER;
484 else if (bss_info->capability & DOT11_CAP_IBSS)
485 iwe.u.mode = IW_MODE_ADHOC;
486 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
487 }
488
489 /* send frequency/channel info */
490 iwe.cmd = SIOCGIWFREQ;
491 iwe.u.freq.e = 0;
492 iwe.u.freq.m = bss_info->chanspec & WL_CHANSPEC_CHAN_MASK;
493 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
494
495 /* add quality statistics */
496 iwe.cmd = IWEVQUAL;
497 iwe.u.qual.qual = 0;
498 iwe.u.qual.level = bss_info->RSSI;
499 iwe.u.qual.noise = bss_info->phy_noise;
500 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
501
502 /* send encryption capability */
503 iwe.cmd = SIOCGIWENCODE;
504 iwe.u.data.pointer = NULL;
505 iwe.u.data.length = 0;
506 if (bss_info->capability & DOT11_CAP_PRIVACY)
507 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
508 else
509 iwe.u.data.flags = IW_ENCODE_DISABLED;
510 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, NULL);
511
512 /* send rate information */
513 iwe.cmd = SIOCGIWRATE;
514 current_val = current_ev + IW_EV_LCP_LEN;
515 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
516
517 for(j = 0 ; j < bss_info->rateset.count ; j++) {
518 iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
519 current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
520 }
521 if((current_val - current_ev) > IW_EV_LCP_LEN)
522 current_ev = current_val;
523
524 info_ptr += sizeof(wl_bss_info_t);
525 if (bss_info->ie_length % 4)
526 info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
527 else
528 info_ptr += bss_info->ie_length;
529 bss_info = (wl_bss_info_t *) info_ptr;
530 }
531
532 wrqu->data.length = (current_ev - extra);
533 wrqu->data.flags = 0;
534
535 if (last_mode > 0)
536 /* switch back to ap mode */
537 wl_ioctl(dev, WLC_SET_AP, &last_mode, sizeof(last_mode));
538
539 return 0;
540 }
541
542 static int wlcompat_ioctl(struct net_device *dev,
543 struct iw_request_info *info,
544 union iwreq_data *wrqu,
545 char *extra)
546 {
547 switch (info->cmd) {
548 case SIOCGIWNAME:
549 strcpy(wrqu->name, "IEEE 802.11-DS");
550 break;
551 case SIOCGIWFREQ:
552 {
553 channel_info_t ci;
554
555 if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
556 return -EINVAL;
557
558 wrqu->freq.m = ci.target_channel;
559 wrqu->freq.e = 0;
560 break;
561 }
562 case SIOCSIWFREQ:
563 {
564 if (wrqu->freq.m == -1) {
565 wrqu->freq.m = 0;
566 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
567 return -EINVAL;
568 } else {
569 if (wrqu->freq.e == 1) {
570 int channel = 0;
571 int f = wrqu->freq.m / 100000;
572 while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
573 channel++;
574
575 if (channel == NUM_CHANNELS) // channel not found
576 return -EINVAL;
577
578 wrqu->freq.e = 0;
579 wrqu->freq.m = channel + 1;
580 }
581 if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
582 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
583 return -EINVAL;
584 } else {
585 return -EINVAL;
586 }
587 }
588 break;
589 }
590 case SIOCSIWAP:
591 {
592 int ap = 0;
593 int infra = 0;
594 rw_reg_t reg;
595
596 memset(&reg, 0, sizeof(reg));
597
598 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
599 return -EINVAL;
600
601 if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
602 return -EINVAL;
603
604 if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
605 return -EINVAL;
606
607 if (!infra)
608 wl_ioctl(dev, WLC_SET_BSSID, wrqu->ap_addr.sa_data, 6);
609
610 if (wl_ioctl(dev, ((ap || !infra) ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0)
611 return -EINVAL;
612
613 break;
614 }
615 case SIOCGIWAP:
616 {
617 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
618 if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
619 return -EINVAL;
620 break;
621 }
622 case SIOCGIWESSID:
623 {
624 wlc_ssid_t ssid;
625
626 if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
627 return -EINVAL;
628
629 wrqu->essid.flags = wrqu->data.flags = 1;
630 wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
631 memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
632 break;
633 }
634 case SIOCSIWESSID:
635 {
636 wlc_ssid_t ssid;
637 memset(&ssid, 0, sizeof(ssid));
638 ssid.SSID_len = strlen(extra);
639 if (ssid.SSID_len > 32)
640 ssid.SSID_len = 32;
641 memcpy(ssid.SSID, extra, ssid.SSID_len);
642 if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
643 return -EINVAL;
644 break;
645 }
646 case SIOCGIWRTS:
647 {
648 if (wl_iovar_get(dev, "rtsthresh", &(wrqu->rts.value), sizeof(int)) < 0)
649 return -EINVAL;
650 break;
651 }
652 case SIOCSIWRTS:
653 {
654 if (wl_iovar_set(dev, "rtsthresh", &(wrqu->rts.value), sizeof(int)) < 0)
655 return -EINVAL;
656 break;
657 }
658 case SIOCGIWFRAG:
659 {
660 if (wl_iovar_get(dev, "fragthresh", &(wrqu->frag.value), sizeof(int)) < 0)
661 return -EINVAL;
662 break;
663 }
664 case SIOCSIWFRAG:
665 {
666 if (wl_iovar_set(dev, "fragthresh", &(wrqu->frag.value), sizeof(int)) < 0)
667 return -EINVAL;
668 break;
669 }
670 case SIOCGIWTXPOW:
671 {
672 int radio, override;
673
674 wl_ioctl(dev, WLC_GET_RADIO, &radio, sizeof(int));
675
676 if (wl_iovar_get(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
677 return -EINVAL;
678
679 override = (wrqu->txpower.value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE;
680 wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
681 if (!override && (wrqu->txpower.value > 76))
682 wrqu->txpower.value = 76;
683 wrqu->txpower.value /= 4;
684
685 wrqu->txpower.fixed = 0;
686 wrqu->txpower.disabled = radio;
687 wrqu->txpower.flags = IW_TXPOW_DBM;
688 break;
689 }
690 case SIOCSIWTXPOW:
691 {
692 /* This is weird: WLC_SET_RADIO with 1 as argument disables the radio */
693 int radio = wrqu->txpower.disabled;
694
695 wl_ioctl(dev, WLC_SET_RADIO, &radio, sizeof(int));
696
697 if (!wrqu->txpower.disabled && (wrqu->txpower.value > 0)) {
698 int value;
699
700 if (wl_iovar_get(dev, "qtxpower", &value, sizeof(int)) < 0)
701 return -EINVAL;
702
703 value &= WL_TXPWR_OVERRIDE;
704 wrqu->txpower.value *= 4;
705 wrqu->txpower.value |= value;
706
707 if (wrqu->txpower.flags != IW_TXPOW_DBM)
708 return -EINVAL;
709
710 if (wrqu->txpower.value > 0)
711 if (wl_iovar_set(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
712 return -EINVAL;
713 }
714 break;
715 }
716 case SIOCSIWENCODE:
717 {
718 int val = 0, wep = 1, wrestrict = 1;
719 int index = (wrqu->data.flags & IW_ENCODE_INDEX) - 1;
720
721 if (index < 0)
722 index = get_primary_key(dev);
723
724 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
725 wep = 0;
726 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
727 return -EINVAL;
728 return 0;
729 }
730
731 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
732 return -EINVAL;
733
734 if (wrqu->data.flags & IW_ENCODE_OPEN)
735 wrestrict = 0;
736
737 if (wrqu->data.pointer && (wrqu->data.length > 0) && (wrqu->data.length <= 16)) {
738 wl_wsec_key_t key;
739 memset(&key, 0, sizeof(key));
740
741 key.flags = WL_PRIMARY_KEY;
742 key.len = wrqu->data.length;
743 key.index = index;
744 memcpy(key.data, wrqu->data.pointer, wrqu->data.length);
745
746 if (wl_ioctl(dev, WLC_SET_KEY, &key, sizeof(key)) < 0)
747 return -EINVAL;
748 }
749
750 if (index >= 0)
751 wl_ioctl(dev, WLC_SET_KEY_PRIMARY, &index, sizeof(index));
752
753 if (wrestrict >= 0)
754 wl_ioctl(dev, WLC_SET_WEP_RESTRICT, &wrestrict, sizeof(wrestrict));
755
756 break;
757 }
758 case SIOCGIWENCODE:
759 {
760 int val;
761 int key = get_primary_key(dev);
762 int *info_addr;
763 wkey *wep_key;
764
765 if (wl_ioctl(dev, WLC_GET_WSEC, &val, sizeof(val)) < 0)
766 return -EINVAL;
767 if (!(val & WEP_ENABLED)) {
768 wrqu->data.flags = IW_ENCODE_DISABLED;
769 break;
770 }
771
772 key = get_primary_key(dev);
773 wrqu->data.flags = IW_ENCODE_ENABLED;
774
775 /* the driver apparently doesn't allow us to read the wep key */
776 wrqu->data.flags |= IW_ENCODE_NOKEY;
777
778 break;
779 }
780 case SIOCGIWRANGE:
781 {
782 return wlcompat_ioctl_getiwrange(dev, extra);
783 break;
784 }
785 case SIOCSIWMODE:
786 {
787 int ap = -1, infra = -1, passive = 0, wet = 0;
788
789 wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet));
790 switch (wrqu->mode) {
791 case IW_MODE_MONITOR:
792 passive = 1;
793 break;
794 case IW_MODE_ADHOC:
795 infra = 0;
796 ap = 0;
797 break;
798 case IW_MODE_MASTER:
799 infra = 1;
800 ap = 1;
801 break;
802 case IW_MODE_INFRA:
803 infra = 1;
804 ap = 0;
805 wet = 0;
806 break;
807 case IW_MODE_REPEAT:
808 infra = 1;
809 ap = 0;
810 wet = 1;
811 break;
812 default:
813 return -EINVAL;
814 }
815
816 wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive));
817 wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive));
818 if ((ap == 0) && (infra == 1))
819 wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet));
820 if (ap >= 0)
821 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
822 if (infra >= 0)
823 wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra));
824
825 break;
826 }
827 case SIOCGIWMODE:
828 {
829 int ap, infra, wet, passive;
830
831 if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
832 return -EINVAL;
833 if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
834 return -EINVAL;
835 if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
836 return -EINVAL;
837
838 if (passive) {
839 wrqu->mode = IW_MODE_MONITOR;
840 } else if (!infra) {
841 wrqu->mode = IW_MODE_ADHOC;
842 } else {
843 if (ap) {
844 wrqu->mode = IW_MODE_MASTER;
845 } else {
846 wrqu->mode = IW_MODE_INFRA;
847 }
848 }
849 break;
850 }
851 default:
852 return -EINVAL;
853 break;
854 }
855
856 return 0;
857 }
858
859 static const iw_handler wlcompat_handler[] = {
860 NULL, /* SIOCSIWCOMMIT */
861 wlcompat_ioctl, /* SIOCGIWNAME */
862 NULL, /* SIOCSIWNWID */
863 NULL, /* SIOCGIWNWID */
864 wlcompat_ioctl, /* SIOCSIWFREQ */
865 wlcompat_ioctl, /* SIOCGIWFREQ */
866 wlcompat_ioctl, /* SIOCSIWMODE */
867 wlcompat_ioctl, /* SIOCGIWMODE */
868 NULL, /* SIOCSIWSENS */
869 NULL, /* SIOCGIWSENS */
870 NULL, /* SIOCSIWRANGE, unused */
871 wlcompat_ioctl, /* SIOCGIWRANGE */
872 NULL, /* SIOCSIWPRIV */
873 NULL, /* SIOCGIWPRIV */
874 NULL, /* SIOCSIWSTATS */
875 NULL, /* SIOCGIWSTATS */
876 iw_handler_set_spy, /* SIOCSIWSPY */
877 iw_handler_get_spy, /* SIOCGIWSPY */
878 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
879 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
880 wlcompat_ioctl, /* SIOCSIWAP */
881 wlcompat_ioctl, /* SIOCGIWAP */
882 NULL, /* -- hole -- */
883 NULL, /* SIOCGIWAPLIST */
884 wlcompat_set_scan, /* SIOCSIWSCAN */
885 wlcompat_get_scan, /* SIOCGIWSCAN */
886 wlcompat_ioctl, /* SIOCSIWESSID */
887 wlcompat_ioctl, /* SIOCGIWESSID */
888 NULL, /* SIOCSIWNICKN */
889 NULL, /* SIOCGIWNICKN */
890 NULL, /* -- hole -- */
891 NULL, /* -- hole -- */
892 NULL, /* SIOCSIWRATE */
893 NULL, /* SIOCGIWRATE */
894 wlcompat_ioctl, /* SIOCSIWRTS */
895 wlcompat_ioctl, /* SIOCGIWRTS */
896 wlcompat_ioctl, /* SIOCSIWFRAG */
897 wlcompat_ioctl, /* SIOCGIWFRAG */
898 wlcompat_ioctl, /* SIOCSIWTXPOW */
899 wlcompat_ioctl, /* SIOCGIWTXPOW */
900 NULL, /* SIOCSIWRETRY */
901 NULL, /* SIOCGIWRETRY */
902 wlcompat_ioctl, /* SIOCSIWENCODE */
903 wlcompat_ioctl, /* SIOCGIWENCODE */
904 };
905
906
907 static const struct iw_handler_def wlcompat_handler_def =
908 {
909 .standard = (iw_handler *) wlcompat_handler,
910 .num_standard = sizeof(wlcompat_handler)/sizeof(iw_handler),
911 };
912
913 #endif
914
915 #ifdef DEBUG
916 void print_buffer(int len, unsigned char *buf) {
917 int x;
918 if (buf != NULL) {
919 for (x=0;x<len && x<180 ;x++) {
920 if ((x % 4) == 0)
921 printk(" ");
922 printk("%02X",buf[x]);
923 }
924 } else {
925 printk(" NULL");
926 }
927 printk("\n");
928
929 }
930 #endif
931 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
932 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
933 int ret = 0;
934
935 #ifdef DEBUG
936 printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
937 if (cmd==SIOCDEVPRIVATE) {
938 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
939 unsigned char *buf = ioc->buf;
940 printk(" cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
941 printk(" send: ->");
942 print_buffer(ioc->len, buf);
943 ret = old_ioctl(dev,ifr,cmd);
944 printk(" recv: ->");
945 print_buffer(ioc->len, buf);
946 printk(" ret: %d\n", ret);
947 } else
948 #endif
949 {
950 ret = old_ioctl(dev,ifr,cmd);
951 }
952 return ret;
953 }
954
955 #ifndef DEBUG
956 static struct timer_list rng_timer;
957 static spinlock_t rng_lock = SPIN_LOCK_UNLOCKED;
958
959 static void rng_timer_tick(unsigned long n)
960 {
961 struct net_device *dev = (struct net_device *) n;
962 unsigned long flags;
963 u16 data[4];
964 int i, ret;
965
966 ret = 0;
967 spin_lock_irqsave(&rng_lock, flags);
968 for (i = 0; i < 3; i++) {
969 ret |= wl_iovar_get(dev, "rand", &data[i], sizeof(u16));
970 }
971 spin_unlock_irqrestore(&rng_lock, flags);
972
973 if (!ret)
974 batch_entropy_store(*((u32 *) &data[0]), *((u32 *) &data[2]), (jiffies % 255));
975
976 mod_timer(&rng_timer, jiffies + (HZ/RNG_POLL_FREQ));
977 }
978 #endif
979
980 static int __init wlcompat_init()
981 {
982 int found = 0, i;
983 char devname[4] = "wl0";
984
985 while (!found && (dev = dev_get_by_name(devname))) {
986 if ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && (i == WLC_IOCTL_MAGIC))
987 found = 1;
988 devname[2]++;
989 }
990
991
992 if (!found) {
993 printk("No Broadcom devices found.\n");
994 return -ENODEV;
995 }
996
997 old_ioctl = dev->do_ioctl;
998 dev->do_ioctl = new_ioctl;
999 #ifndef WL_WEXT
1000 dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
1001 dev->get_wireless_stats = wlcompat_get_wireless_stats;
1002 #endif
1003
1004 #ifndef DEBUG
1005 if (random) {
1006 init_timer(&rng_timer);
1007 rng_timer.function = rng_timer_tick;
1008 rng_timer.data = (unsigned long) dev;
1009 rng_timer_tick((unsigned long) dev);
1010 }
1011 #endif
1012
1013 #ifdef DEBUG
1014 printk("broadcom driver private data: 0x%08x\n", dev->priv);
1015 #endif
1016 return 0;
1017 }
1018
1019 static void __exit wlcompat_exit()
1020 {
1021 #ifndef DEBUG
1022 if (random)
1023 del_timer(&rng_timer);
1024 #endif
1025 #ifndef WL_WEXT
1026 dev->get_wireless_stats = NULL;
1027 dev->wireless_handlers = NULL;
1028 #endif
1029 dev->do_ioctl = old_ioctl;
1030 return;
1031 }
1032
1033 EXPORT_NO_SYMBOLS;
1034 MODULE_AUTHOR("openwrt.org");
1035 MODULE_LICENSE("GPL");
1036
1037 #ifndef DEBUG
1038 module_param(random, int, 0);
1039 #endif
1040 module_init(wlcompat_init);
1041 module_exit(wlcompat_exit);
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