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[kernel] 2.6.31: update generic config
[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 */
22
23
24 #include <linux/config.h>
25 #include <linux/module.h>
26 #include <linux/moduleparam.h>
27 #include <linux/init.h>
28 #include <linux/if_arp.h>
29 #include <linux/wireless.h>
30 #include <linux/timer.h>
31 #include <linux/delay.h>
32 #include <linux/random.h>
33 #include <net/iw_handler.h>
34 #include <asm/uaccess.h>
35
36 #include <typedefs.h>
37 #include <bcmutils.h>
38 #include <wlioctl.h>
39
40 char buf[WLC_IOCTL_MAXLEN];
41 static struct net_device *dev;
42 #ifndef DEBUG
43 static int random = 1;
44 #endif
45 #ifndef WL_WEXT
46 static struct iw_statistics wstats;
47 static int last_mode = -1;
48 static int scan_cur = 0;
49
50 /* The frequency of each channel in MHz */
51 const long channel_frequency[] = {
52 2412, 2417, 2422, 2427, 2432, 2437, 2442,
53 2447, 2452, 2457, 2462, 2467, 2472, 2484
54 };
55 #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
56 #endif
57
58 #define SCAN_RETRY_MAX 5
59 #define RNG_POLL_FREQ 1
60
61 typedef struct internal_wsec_key {
62 uint8 index; // 0x00
63 uint8 unknown_1; // 0x01
64 uint8 type; // 0x02
65 uint8 unknown_2[7]; // 0x03
66 uint8 len; // 0x0a
67 uint8 pad[3];
68 char data[32]; // 0x0e
69 } wkey;
70
71
72 #ifdef DEBUG
73 void print_buffer(int len, unsigned char *buf);
74 #endif
75
76 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
77 {
78 mm_segment_t old_fs = get_fs();
79 struct ifreq ifr;
80 int ret;
81 wl_ioctl_t ioc;
82 ioc.cmd = cmd;
83 ioc.buf = buf;
84 ioc.len = len;
85 strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
86 ifr.ifr_data = (caddr_t) &ioc;
87 set_fs(KERNEL_DS);
88 ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
89 set_fs (old_fs);
90 return ret;
91 }
92
93 #if !defined(DEBUG) || !defined(WL_WEXT)
94 static int
95 wl_iovar_getbuf(struct net_device *dev, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
96 {
97 int err;
98 uint namelen;
99 uint iolen;
100
101 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
102 iolen = namelen + paramlen;
103
104 /* check for overflow */
105 if (iolen > buflen)
106 return (BCME_BUFTOOSHORT);
107
108 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
109 memcpy((int8*)bufptr + namelen, param, paramlen);
110
111 err = wl_ioctl(dev, WLC_GET_VAR, bufptr, buflen);
112
113 return (err);
114 }
115
116 static int
117 wl_iovar_setbuf(struct net_device *dev, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
118 {
119 uint namelen;
120 uint iolen;
121
122 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
123 iolen = namelen + paramlen;
124
125 /* check for overflow */
126 if (iolen > buflen)
127 return (BCME_BUFTOOSHORT);
128
129 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
130 memcpy((int8*)bufptr + namelen, param, paramlen);
131
132 return wl_ioctl(dev, WLC_SET_VAR, bufptr, iolen);
133 }
134
135 static int
136 wl_iovar_set(struct net_device *dev, char *iovar, void *param, int paramlen)
137 {
138 char smbuf[WLC_IOCTL_SMLEN];
139
140 return wl_iovar_setbuf(dev, iovar, param, paramlen, smbuf, sizeof(smbuf));
141 }
142
143 static int
144 wl_iovar_get(struct net_device *dev, char *iovar, void *bufptr, int buflen)
145 {
146 char smbuf[WLC_IOCTL_SMLEN];
147 int ret;
148
149 /* use the return buffer if it is bigger than what we have on the stack */
150 if (buflen > sizeof(smbuf)) {
151 ret = wl_iovar_getbuf(dev, iovar, NULL, 0, bufptr, buflen);
152 } else {
153 ret = wl_iovar_getbuf(dev, iovar, NULL, 0, smbuf, sizeof(smbuf));
154 if (ret == 0)
155 memcpy(bufptr, smbuf, buflen);
156 }
157
158 return ret;
159 }
160
161 #ifdef notyet
162 /*
163 * format a bsscfg indexed iovar buffer
164 */
165 static int
166 wl_bssiovar_mkbuf(char *iovar, int bssidx, void *param, int paramlen, void *bufptr, int buflen,
167 int *plen)
168 {
169 char *prefix = "bsscfg:";
170 int8* p;
171 uint prefixlen;
172 uint namelen;
173 uint iolen;
174
175 prefixlen = strlen(prefix); /* length of bsscfg prefix */
176 namelen = strlen(iovar) + 1; /* length of iovar name + null */
177 iolen = prefixlen + namelen + sizeof(int) + paramlen;
178
179 /* check for overflow */
180 if (buflen < 0 || iolen > (uint)buflen) {
181 *plen = 0;
182 return BCME_BUFTOOSHORT;
183 }
184
185 p = (int8*)bufptr;
186
187 /* copy prefix, no null */
188 memcpy(p, prefix, prefixlen);
189 p += prefixlen;
190
191 /* copy iovar name including null */
192 memcpy(p, iovar, namelen);
193 p += namelen;
194
195 /* bss config index as first param */
196 memcpy(p, &bssidx, sizeof(int32));
197 p += sizeof(int32);
198
199 /* parameter buffer follows */
200 if (paramlen)
201 memcpy(p, param, paramlen);
202
203 *plen = iolen;
204 return 0;
205 }
206
207 /*
208 * set named & bss indexed driver variable to buffer value
209 */
210 static int
211 wl_bssiovar_setbuf(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
212 int buflen)
213 {
214 int err;
215 int iolen;
216
217 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
218 if (err)
219 return err;
220
221 return wl_ioctl(dev, WLC_SET_VAR, bufptr, iolen);
222 }
223
224 /*
225 * get named & bss indexed driver variable buffer value
226 */
227 static int
228 wl_bssiovar_getbuf(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
229 int buflen)
230 {
231 int err;
232 int iolen;
233
234 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
235 if (err)
236 return err;
237
238 return wl_ioctl(dev, WLC_GET_VAR, bufptr, buflen);
239 }
240
241 /*
242 * set named & bss indexed driver variable to buffer value
243 */
244 static int
245 wl_bssiovar_set(struct net_device *dev, char *iovar, int bssidx, void *param, int paramlen)
246 {
247 char smbuf[WLC_IOCTL_SMLEN];
248
249 return wl_bssiovar_setbuf(dev, iovar, bssidx, param, paramlen, smbuf, sizeof(smbuf));
250 }
251
252 /*
253 * get named & bss indexed driver variable buffer value
254 */
255 static int
256 wl_bssiovar_get(struct net_device *dev, char *iovar, int bssidx, void *outbuf, int len)
257 {
258 char smbuf[WLC_IOCTL_SMLEN];
259 int err;
260
261 /* use the return buffer if it is bigger than what we have on the stack */
262 if (len > (int)sizeof(smbuf)) {
263 err = wl_bssiovar_getbuf(dev, iovar, bssidx, NULL, 0, outbuf, len);
264 } else {
265 memset(smbuf, 0, sizeof(smbuf));
266 err = wl_bssiovar_getbuf(dev, iovar, bssidx, NULL, 0, smbuf, sizeof(smbuf));
267 if (err == 0)
268 memcpy(outbuf, smbuf, len);
269 }
270
271 return err;
272 }
273 #endif
274 #endif
275
276 #ifndef WL_WEXT
277
278 int get_primary_key(struct net_device *dev)
279 {
280 int key, val;
281
282 for (key = val = 0; (key < 4) && (val == 0); key++) {
283 val = key;
284 if (wl_ioctl(dev, WLC_GET_KEY_PRIMARY, &val, sizeof(val)) < 0)
285 return -EINVAL;
286 }
287 return key;
288 }
289
290
291 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
292 char *extra)
293 {
294 int i, k;
295 struct iw_range *range;
296
297 range = (struct iw_range *) extra;
298 memset(extra, 0, sizeof(struct iw_range));
299
300 range->we_version_compiled = WIRELESS_EXT;
301 range->we_version_source = WIRELESS_EXT;
302
303 range->min_nwid = range->max_nwid = 0;
304
305 range->num_channels = NUM_CHANNELS;
306 k = 0;
307 for (i = 0; i < NUM_CHANNELS; i++) {
308 range->freq[k].i = i + 1;
309 range->freq[k].m = channel_frequency[i] * 100000;
310 range->freq[k].e = 1;
311 k++;
312 if (k >= IW_MAX_FREQUENCIES)
313 break;
314 }
315 range->num_frequency = k;
316 range->sensitivity = 3;
317
318 /* nbd: don't know what this means, but other drivers set it this way */
319 range->pmp_flags = IW_POWER_PERIOD;
320 range->pmt_flags = IW_POWER_TIMEOUT;
321 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
322
323 range->min_pmp = 0;
324 range->max_pmp = 65535000;
325 range->min_pmt = 0;
326 range->max_pmt = 65535 * 1000;
327
328 range->max_qual.qual = 0;
329 range->max_qual.level = 0;
330 range->max_qual.noise = 0;
331
332 range->min_rts = 0;
333 if (wl_iovar_get(dev, "rtsthresh", &range->max_rts, sizeof(int)) < 0)
334 range->max_rts = 2347;
335
336 range->min_frag = 256;
337
338 if (wl_iovar_get(dev, "fragthresh", &range->max_frag, sizeof(int)) < 0)
339 range->max_frag = 2346;
340
341 range->txpower_capa = IW_TXPOW_DBM;
342
343 return 0;
344 }
345
346
347 static int wlcompat_set_scan(struct net_device *dev,
348 struct iw_request_info *info,
349 union iwreq_data *wrqu,
350 char *extra)
351 {
352 int ap = 0;
353 wl_scan_params_t params;
354
355 memset(&params, 0, sizeof(params));
356
357 /* use defaults (same parameters as wl scan) */
358 memset(&params.bssid, 0xff, sizeof(params.bssid));
359 params.bss_type = DOT11_BSSTYPE_ANY;
360 params.scan_type = -1;
361 params.nprobes = -1;
362 params.active_time = -1;
363 params.passive_time = -1;
364 params.home_time = -1;
365
366 /* can only scan in STA mode */
367 wl_ioctl(dev, WLC_GET_AP, &last_mode, sizeof(last_mode));
368 if (last_mode > 0) {
369 /* switch to ap mode, scan result query will switch back */
370 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
371
372 /* wait 250 msec after mode change */
373 set_current_state(TASK_INTERRUPTIBLE);
374 schedule_timeout(msecs_to_jiffies(250));
375 }
376
377 scan_cur = SCAN_RETRY_MAX;
378 while (scan_cur-- && (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)) {
379 /* sometimes the driver takes a few tries... */
380 set_current_state(TASK_INTERRUPTIBLE);
381 schedule_timeout(msecs_to_jiffies(250));
382 }
383
384 if (!scan_cur)
385 return -EINVAL;
386
387 scan_cur = 0;
388
389 /* wait at least 2 seconds for results */
390 set_current_state(TASK_INTERRUPTIBLE);
391 schedule_timeout(msecs_to_jiffies(2000));
392
393 return 0;
394 }
395
396
397 struct iw_statistics *wlcompat_get_wireless_stats(struct net_device *dev)
398 {
399 struct wl_bss_info *bss_info = (struct wl_bss_info *) buf;
400 get_pktcnt_t pkt;
401 unsigned int rssi, noise, ap;
402
403 memset(&wstats, 0, sizeof(wstats));
404 memset(&pkt, 0, sizeof(pkt));
405 memset(buf, 0, sizeof(buf));
406 bss_info->version = 0x2000;
407 wl_ioctl(dev, WLC_GET_BSS_INFO, bss_info, WLC_IOCTL_MAXLEN);
408 wl_ioctl(dev, WLC_GET_PKTCNTS, &pkt, sizeof(pkt));
409
410 rssi = 0;
411 if ((wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap) {
412 if (wl_ioctl(dev, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
413 noise = 0;
414 } else {
415 // somehow the structure doesn't fit here
416 rssi = buf[82];
417 noise = buf[84];
418 }
419 rssi = (rssi == 0 ? 1 : rssi);
420 wstats.qual.updated = 0x10;
421 if (rssi <= 1)
422 wstats.qual.updated |= 0x20;
423 if (noise <= 1)
424 wstats.qual.updated |= 0x40;
425
426 if ((wstats.qual.updated & 0x60) == 0x60)
427 return NULL;
428
429 wstats.qual.level = rssi;
430 wstats.qual.noise = noise;
431 wstats.discard.misc = pkt.rx_bad_pkt;
432 wstats.discard.retries = pkt.tx_bad_pkt;
433
434 return &wstats;
435 }
436
437 static int wlcompat_get_scan(struct net_device *dev,
438 struct iw_request_info *info,
439 union iwreq_data *wrqu,
440 char *extra)
441 {
442 wl_scan_results_t *results = (wl_scan_results_t *) buf;
443 wl_bss_info_t *bss_info;
444 char *info_ptr;
445 char *current_ev = extra;
446 char *current_val;
447 char *end_buf = extra + IW_SCAN_MAX_DATA;
448 struct iw_event iwe;
449 int i, j;
450 int rssi, noise;
451
452 memset(buf, 0, WLC_IOCTL_MAXLEN);
453 results->buflen = WLC_IOCTL_MAXLEN - sizeof(wl_scan_results_t);
454
455 if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
456 return -EAGAIN;
457
458 if ((results->count <= 0) && (scan_cur++ < SCAN_RETRY_MAX))
459 return -EAGAIN;
460
461 bss_info = &(results->bss_info[0]);
462 info_ptr = (char *) bss_info;
463 for (i = 0; i < results->count; i++) {
464 /* send the cell address (must be sent first) */
465 iwe.cmd = SIOCGIWAP;
466 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
467 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
468 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
469
470 /* send the ESSID */
471 iwe.cmd = SIOCGIWESSID;
472 iwe.u.data.length = bss_info->SSID_len;
473 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
474 iwe.u.data.length = IW_ESSID_MAX_SIZE;
475 iwe.u.data.flags = 1;
476 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
477
478 /* send mode */
479 if (bss_info->capability & (DOT11_CAP_ESS | DOT11_CAP_IBSS)) {
480 iwe.cmd = SIOCGIWMODE;
481 if (bss_info->capability & DOT11_CAP_ESS)
482 iwe.u.mode = IW_MODE_MASTER;
483 else if (bss_info->capability & DOT11_CAP_IBSS)
484 iwe.u.mode = IW_MODE_ADHOC;
485 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
486 }
487
488 /* send frequency/channel info */
489 iwe.cmd = SIOCGIWFREQ;
490 iwe.u.freq.e = 0;
491 iwe.u.freq.m = bss_info->chanspec & WL_CHANSPEC_CHAN_MASK;
492 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
493
494 /* add quality statistics */
495 iwe.cmd = IWEVQUAL;
496 iwe.u.qual.qual = 0;
497 iwe.u.qual.level = bss_info->RSSI;
498 iwe.u.qual.noise = bss_info->phy_noise;
499 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
500
501 /* send encryption capability */
502 iwe.cmd = SIOCGIWENCODE;
503 iwe.u.data.pointer = NULL;
504 iwe.u.data.length = 0;
505 if (bss_info->capability & DOT11_CAP_PRIVACY)
506 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
507 else
508 iwe.u.data.flags = IW_ENCODE_DISABLED;
509 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, NULL);
510
511 /* send rate information */
512 iwe.cmd = SIOCGIWRATE;
513 current_val = current_ev + IW_EV_LCP_LEN;
514 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
515
516 for(j = 0 ; j < bss_info->rateset.count ; j++) {
517 iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
518 current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
519 }
520 if((current_val - current_ev) > IW_EV_LCP_LEN)
521 current_ev = current_val;
522
523 info_ptr += sizeof(wl_bss_info_t);
524 if (bss_info->ie_length % 4)
525 info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
526 else
527 info_ptr += bss_info->ie_length;
528 bss_info = (wl_bss_info_t *) info_ptr;
529 }
530
531 wrqu->data.length = (current_ev - extra);
532 wrqu->data.flags = 0;
533
534 if (last_mode > 0)
535 /* switch back to ap mode */
536 wl_ioctl(dev, WLC_SET_AP, &last_mode, sizeof(last_mode));
537
538 return 0;
539 }
540
541 static int wlcompat_ioctl(struct net_device *dev,
542 struct iw_request_info *info,
543 union iwreq_data *wrqu,
544 char *extra)
545 {
546 switch (info->cmd) {
547 case SIOCGIWNAME:
548 strcpy(wrqu->name, "IEEE 802.11-DS");
549 break;
550 case SIOCGIWFREQ:
551 {
552 channel_info_t ci;
553
554 if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
555 return -EINVAL;
556
557 wrqu->freq.m = ci.target_channel;
558 wrqu->freq.e = 0;
559 break;
560 }
561 case SIOCSIWFREQ:
562 {
563 if (wrqu->freq.m == -1) {
564 wrqu->freq.m = 0;
565 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
566 return -EINVAL;
567 } else {
568 if (wrqu->freq.e == 1) {
569 int channel = 0;
570 int f = wrqu->freq.m / 100000;
571 while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
572 channel++;
573
574 if (channel == NUM_CHANNELS) // channel not found
575 return -EINVAL;
576
577 wrqu->freq.e = 0;
578 wrqu->freq.m = channel + 1;
579 }
580 if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
581 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
582 return -EINVAL;
583 } else {
584 return -EINVAL;
585 }
586 }
587 break;
588 }
589 case SIOCSIWAP:
590 {
591 int ap = 0;
592 int infra = 0;
593 rw_reg_t reg;
594
595 memset(&reg, 0, sizeof(reg));
596
597 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
598 return -EINVAL;
599
600 if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
601 return -EINVAL;
602
603 if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
604 return -EINVAL;
605
606 if (!infra)
607 wl_ioctl(dev, WLC_SET_BSSID, wrqu->ap_addr.sa_data, 6);
608
609 if (wl_ioctl(dev, ((ap || !infra) ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0)
610 return -EINVAL;
611
612 break;
613 }
614 case SIOCGIWAP:
615 {
616 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
617 if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
618 return -EINVAL;
619 break;
620 }
621 case SIOCGIWESSID:
622 {
623 wlc_ssid_t ssid;
624
625 if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
626 return -EINVAL;
627
628 wrqu->essid.flags = wrqu->data.flags = 1;
629 wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
630 memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
631 break;
632 }
633 case SIOCSIWESSID:
634 {
635 wlc_ssid_t ssid;
636 memset(&ssid, 0, sizeof(ssid));
637 ssid.SSID_len = strlen(extra);
638 if (ssid.SSID_len > 32)
639 ssid.SSID_len = 32;
640 memcpy(ssid.SSID, extra, ssid.SSID_len);
641 if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
642 return -EINVAL;
643 break;
644 }
645 case SIOCGIWRTS:
646 {
647 if (wl_iovar_get(dev, "rtsthresh", &(wrqu->rts.value), sizeof(int)) < 0)
648 return -EINVAL;
649 break;
650 }
651 case SIOCSIWRTS:
652 {
653 if (wl_iovar_set(dev, "rtsthresh", &(wrqu->rts.value), sizeof(int)) < 0)
654 return -EINVAL;
655 break;
656 }
657 case SIOCGIWFRAG:
658 {
659 if (wl_iovar_get(dev, "fragthresh", &(wrqu->frag.value), sizeof(int)) < 0)
660 return -EINVAL;
661 break;
662 }
663 case SIOCSIWFRAG:
664 {
665 if (wl_iovar_set(dev, "fragthresh", &(wrqu->frag.value), sizeof(int)) < 0)
666 return -EINVAL;
667 break;
668 }
669 case SIOCGIWTXPOW:
670 {
671 int radio, override;
672
673 wl_ioctl(dev, WLC_GET_RADIO, &radio, sizeof(int));
674
675 if (wl_iovar_get(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
676 return -EINVAL;
677
678 override = (wrqu->txpower.value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE;
679 wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
680 if (!override && (wrqu->txpower.value > 76))
681 wrqu->txpower.value = 76;
682 wrqu->txpower.value /= 4;
683
684 wrqu->txpower.fixed = 0;
685 wrqu->txpower.disabled = radio;
686 wrqu->txpower.flags = IW_TXPOW_DBM;
687 break;
688 }
689 case SIOCSIWTXPOW:
690 {
691 /* This is weird: WLC_SET_RADIO with 1 as argument disables the radio */
692 int radio = wrqu->txpower.disabled;
693
694 wl_ioctl(dev, WLC_SET_RADIO, &radio, sizeof(int));
695
696 if (!wrqu->txpower.disabled && (wrqu->txpower.value > 0)) {
697 int value;
698
699 if (wl_iovar_get(dev, "qtxpower", &value, sizeof(int)) < 0)
700 return -EINVAL;
701
702 value &= WL_TXPWR_OVERRIDE;
703 wrqu->txpower.value *= 4;
704 wrqu->txpower.value |= value;
705
706 if (wrqu->txpower.flags != IW_TXPOW_DBM)
707 return -EINVAL;
708
709 if (wrqu->txpower.value > 0)
710 if (wl_iovar_set(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
711 return -EINVAL;
712 }
713 break;
714 }
715 case SIOCSIWENCODE:
716 {
717 int val = 0, wep = 1, wrestrict = 1;
718 int index = (wrqu->data.flags & IW_ENCODE_INDEX) - 1;
719
720 if (index < 0)
721 index = get_primary_key(dev);
722
723 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
724 wep = 0;
725 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
726 return -EINVAL;
727 return 0;
728 }
729
730 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
731 return -EINVAL;
732
733 if (wrqu->data.flags & IW_ENCODE_OPEN)
734 wrestrict = 0;
735
736 if (wrqu->data.pointer && (wrqu->data.length > 0) && (wrqu->data.length <= 16)) {
737 wl_wsec_key_t key;
738 memset(&key, 0, sizeof(key));
739
740 key.flags = WL_PRIMARY_KEY;
741 key.len = wrqu->data.length;
742 key.index = index;
743 memcpy(key.data, wrqu->data.pointer, wrqu->data.length);
744
745 if (wl_ioctl(dev, WLC_SET_KEY, &key, sizeof(key)) < 0)
746 return -EINVAL;
747 }
748
749 if (index >= 0)
750 wl_ioctl(dev, WLC_SET_KEY_PRIMARY, &index, sizeof(index));
751
752 if (wrestrict >= 0)
753 wl_ioctl(dev, WLC_SET_WEP_RESTRICT, &wrestrict, sizeof(wrestrict));
754
755 break;
756 }
757 case SIOCGIWENCODE:
758 {
759 int val;
760 int key = get_primary_key(dev);
761 int *info_addr;
762 wkey *wep_key;
763
764 if (wl_ioctl(dev, WLC_GET_WSEC, &val, sizeof(val)) < 0)
765 return -EINVAL;
766 if (!(val & WEP_ENABLED)) {
767 wrqu->data.flags = IW_ENCODE_DISABLED;
768 break;
769 }
770
771 key = get_primary_key(dev);
772 wrqu->data.flags = IW_ENCODE_ENABLED;
773
774 /* the driver apparently doesn't allow us to read the wep key */
775 wrqu->data.flags |= IW_ENCODE_NOKEY;
776
777 break;
778 }
779 case SIOCGIWRANGE:
780 {
781 return wlcompat_ioctl_getiwrange(dev, extra);
782 break;
783 }
784 case SIOCSIWMODE:
785 {
786 int ap = -1, infra = -1, passive = 0, wet = 0;
787
788 wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet));
789 switch (wrqu->mode) {
790 case IW_MODE_MONITOR:
791 passive = 1;
792 break;
793 case IW_MODE_ADHOC:
794 infra = 0;
795 ap = 0;
796 break;
797 case IW_MODE_MASTER:
798 infra = 1;
799 ap = 1;
800 break;
801 case IW_MODE_INFRA:
802 infra = 1;
803 ap = 0;
804 wet = 0;
805 break;
806 case IW_MODE_REPEAT:
807 infra = 1;
808 ap = 0;
809 wet = 1;
810 break;
811 default:
812 return -EINVAL;
813 }
814
815 wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive));
816 wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive));
817 if ((ap == 0) && (infra == 1))
818 wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet));
819 if (ap >= 0)
820 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
821 if (infra >= 0)
822 wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra));
823
824 break;
825 }
826 case SIOCGIWMODE:
827 {
828 int ap, infra, wet, passive;
829
830 if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
831 return -EINVAL;
832 if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
833 return -EINVAL;
834 if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
835 return -EINVAL;
836
837 if (passive) {
838 wrqu->mode = IW_MODE_MONITOR;
839 } else if (!infra) {
840 wrqu->mode = IW_MODE_ADHOC;
841 } else {
842 if (ap) {
843 wrqu->mode = IW_MODE_MASTER;
844 } else {
845 wrqu->mode = IW_MODE_INFRA;
846 }
847 }
848 break;
849 }
850 default:
851 return -EINVAL;
852 break;
853 }
854
855 return 0;
856 }
857
858 static const iw_handler wlcompat_handler[] = {
859 NULL, /* SIOCSIWCOMMIT */
860 wlcompat_ioctl, /* SIOCGIWNAME */
861 NULL, /* SIOCSIWNWID */
862 NULL, /* SIOCGIWNWID */
863 wlcompat_ioctl, /* SIOCSIWFREQ */
864 wlcompat_ioctl, /* SIOCGIWFREQ */
865 wlcompat_ioctl, /* SIOCSIWMODE */
866 wlcompat_ioctl, /* SIOCGIWMODE */
867 NULL, /* SIOCSIWSENS */
868 NULL, /* SIOCGIWSENS */
869 NULL, /* SIOCSIWRANGE, unused */
870 wlcompat_ioctl, /* SIOCGIWRANGE */
871 NULL, /* SIOCSIWPRIV */
872 NULL, /* SIOCGIWPRIV */
873 NULL, /* SIOCSIWSTATS */
874 NULL, /* SIOCGIWSTATS */
875 iw_handler_set_spy, /* SIOCSIWSPY */
876 iw_handler_get_spy, /* SIOCGIWSPY */
877 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
878 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
879 wlcompat_ioctl, /* SIOCSIWAP */
880 wlcompat_ioctl, /* SIOCGIWAP */
881 NULL, /* -- hole -- */
882 NULL, /* SIOCGIWAPLIST */
883 wlcompat_set_scan, /* SIOCSIWSCAN */
884 wlcompat_get_scan, /* SIOCGIWSCAN */
885 wlcompat_ioctl, /* SIOCSIWESSID */
886 wlcompat_ioctl, /* SIOCGIWESSID */
887 NULL, /* SIOCSIWNICKN */
888 NULL, /* SIOCGIWNICKN */
889 NULL, /* -- hole -- */
890 NULL, /* -- hole -- */
891 NULL, /* SIOCSIWRATE */
892 NULL, /* SIOCGIWRATE */
893 wlcompat_ioctl, /* SIOCSIWRTS */
894 wlcompat_ioctl, /* SIOCGIWRTS */
895 wlcompat_ioctl, /* SIOCSIWFRAG */
896 wlcompat_ioctl, /* SIOCGIWFRAG */
897 wlcompat_ioctl, /* SIOCSIWTXPOW */
898 wlcompat_ioctl, /* SIOCGIWTXPOW */
899 NULL, /* SIOCSIWRETRY */
900 NULL, /* SIOCGIWRETRY */
901 wlcompat_ioctl, /* SIOCSIWENCODE */
902 wlcompat_ioctl, /* SIOCGIWENCODE */
903 };
904
905
906 static const struct iw_handler_def wlcompat_handler_def =
907 {
908 .standard = (iw_handler *) wlcompat_handler,
909 .num_standard = sizeof(wlcompat_handler)/sizeof(iw_handler),
910 };
911
912 #endif
913
914 #ifdef DEBUG
915 void print_buffer(int len, unsigned char *buf) {
916 int x;
917 if (buf != NULL) {
918 for (x=0;x<len && x<180 ;x++) {
919 if ((x % 4) == 0)
920 printk(" ");
921 printk("%02X",buf[x]);
922 }
923 } else {
924 printk(" NULL");
925 }
926 printk("\n");
927
928 }
929 #endif
930 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
931 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
932 int ret = 0;
933
934 #ifdef DEBUG
935 printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
936 if (cmd==SIOCDEVPRIVATE) {
937 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
938 unsigned char *buf = ioc->buf;
939 printk(" cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
940 printk(" send: ->");
941 print_buffer(ioc->len, buf);
942 ret = old_ioctl(dev,ifr,cmd);
943 printk(" recv: ->");
944 print_buffer(ioc->len, buf);
945 printk(" ret: %d\n", ret);
946 } else
947 #endif
948 {
949 ret = old_ioctl(dev,ifr,cmd);
950 }
951 return ret;
952 }
953
954 #ifndef DEBUG
955 static struct timer_list rng_timer;
956 static spinlock_t rng_lock = SPIN_LOCK_UNLOCKED;
957
958 static void rng_timer_tick(unsigned long n)
959 {
960 struct net_device *dev = (struct net_device *) n;
961 unsigned long flags;
962 u16 data[4];
963 int i, ret;
964
965 ret = 0;
966 spin_lock_irqsave(&rng_lock, flags);
967 for (i = 0; i < 3; i++) {
968 ret |= wl_iovar_get(dev, "rand", &data[i], sizeof(u16));
969 }
970 spin_unlock_irqrestore(&rng_lock, flags);
971
972 if (!ret)
973 batch_entropy_store(*((u32 *) &data[0]), *((u32 *) &data[2]), (jiffies % 255));
974
975 mod_timer(&rng_timer, jiffies + (HZ/RNG_POLL_FREQ));
976 }
977 #endif
978
979 static int __init wlcompat_init()
980 {
981 int found = 0, i;
982 char devname[4] = "wl0";
983
984 while (!found && (dev = dev_get_by_name(devname))) {
985 if ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && (i == WLC_IOCTL_MAGIC))
986 found = 1;
987 devname[2]++;
988 }
989
990
991 if (!found) {
992 printk("No Broadcom devices found.\n");
993 return -ENODEV;
994 }
995
996 old_ioctl = dev->do_ioctl;
997 dev->do_ioctl = new_ioctl;
998 #ifndef WL_WEXT
999 dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
1000 dev->get_wireless_stats = wlcompat_get_wireless_stats;
1001 #endif
1002
1003 #ifndef DEBUG
1004 if (random) {
1005 init_timer(&rng_timer);
1006 rng_timer.function = rng_timer_tick;
1007 rng_timer.data = (unsigned long) dev;
1008 rng_timer_tick((unsigned long) dev);
1009 }
1010 #endif
1011
1012 #ifdef DEBUG
1013 printk("broadcom driver private data: 0x%08x\n", dev->priv);
1014 #endif
1015 return 0;
1016 }
1017
1018 static void __exit wlcompat_exit()
1019 {
1020 #ifndef DEBUG
1021 if (random)
1022 del_timer(&rng_timer);
1023 #endif
1024 #ifndef WL_WEXT
1025 dev->get_wireless_stats = NULL;
1026 dev->wireless_handlers = NULL;
1027 #endif
1028 dev->do_ioctl = old_ioctl;
1029 return;
1030 }
1031
1032 EXPORT_NO_SYMBOLS;
1033 MODULE_AUTHOR("openwrt.org");
1034 MODULE_LICENSE("GPL");
1035
1036 #ifndef DEBUG
1037 module_param(random, int, 0);
1038 #endif
1039 module_init(wlcompat_init);
1040 module_exit(wlcompat_exit);
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