4 * Copyright (C) 2005 Mike Baker,
5 * Felix Fietkau <nbd@vd-s.ath.cx>
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.
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.
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.
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>
32 #include <net/iw_handler.h>
37 static struct net_device *dev;
38 char buf[WLC_IOCTL_MAXLEN];
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
45 #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
47 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
49 mm_segment_t old_fs = get_fs();
56 strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
57 ifr.ifr_data = (caddr_t) &ioc;
59 ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
64 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
68 struct iw_range *range;
70 range = (struct iw_range *) extra;
72 range->we_version_compiled = WIRELESS_EXT;
73 range->we_version_source = WIRELESS_EXT;
75 range->min_nwid = range->max_nwid = 0;
77 range->num_channels = NUM_CHANNELS;
79 for (i = 0; i < NUM_CHANNELS; i++) {
80 range->freq[k].i = i + 1;
81 range->freq[k].m = channel_frequency[i] * 100000;
84 if (k >= IW_MAX_FREQUENCIES)
87 range->num_frequency = k;
88 range->sensitivity = 3;
90 /* nbd: don't know what this means, but other drivers set it this way */
91 range->pmp_flags = IW_POWER_PERIOD;
92 range->pmt_flags = IW_POWER_TIMEOUT;
93 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
96 range->max_pmp = 65535000;
98 range->max_pmt = 65535 * 1000;
101 if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
102 range->max_rts = 2347;
104 range->min_frag = 256;
106 if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
107 range->max_frag = 2346;
109 range->txpower_capa = IW_TXPOW_MWATT;
115 static int wlcompat_set_scan(struct net_device *dev,
116 struct iw_request_info *info,
117 union iwreq_data *wrqu,
120 int ap = 0, oldap = 0;
121 wl_scan_params_t params;
123 memset(¶ms, 0, sizeof(params));
125 /* use defaults (same parameters as wl scan) */
126 memset(¶ms.bssid, 0xff, sizeof(params.bssid));
127 params.bss_type = DOT11_BSSTYPE_ANY;
128 params.scan_type = -1;
130 params.active_time = -1;
131 params.passive_time = -1;
132 params.home_time = -1;
134 /* can only scan in STA mode */
135 wl_ioctl(dev, WLC_GET_AP, &oldap, sizeof(oldap));
137 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
139 if (wl_ioctl(dev, WLC_SCAN, ¶ms, 64) < 0)
143 wl_ioctl(dev, WLC_SET_AP, &oldap, sizeof(oldap));
149 static int wlcompat_get_scan(struct net_device *dev,
150 struct iw_request_info *info,
151 union iwreq_data *wrqu,
154 wl_scan_results_t *results = (wl_scan_results_t *) buf;
155 wl_bss_info_t *bss_info;
157 char *current_ev = extra;
159 char *end_buf = extra + IW_SCAN_MAX_DATA;
163 if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
166 bss_info = &(results->bss_info[0]);
167 info_ptr = (char *) bss_info;
168 for (i = 0; i < results->count; i++) {
170 /* send the cell address (must be sent first) */
172 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
173 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
174 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
177 iwe.cmd = SIOCGIWESSID;
178 iwe.u.data.length = bss_info->SSID_len;
179 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
180 iwe.u.data.length = IW_ESSID_MAX_SIZE;
181 iwe.u.data.flags = 1;
182 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
184 /* send frequency/channel info */
185 iwe.cmd = SIOCGIWFREQ;
187 iwe.u.freq.m = bss_info->channel;
188 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
190 /* add quality statistics */
192 iwe.u.qual.level = bss_info->RSSI;
193 iwe.u.qual.noise = bss_info->phy_noise;
195 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
197 /* send rate information */
198 iwe.cmd = SIOCGIWRATE;
199 current_val = current_ev + IW_EV_LCP_LEN;
200 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
202 for(j = 0 ; j < bss_info->rateset.count ; j++) {
203 iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
204 current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
206 if((current_val - current_ev) > IW_EV_LCP_LEN)
207 current_ev = current_val;
209 info_ptr += sizeof(wl_bss_info_t);
210 if (bss_info->ie_length % 4)
211 info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
213 info_ptr += bss_info->ie_length;
214 bss_info = (wl_bss_info_t *) info_ptr;
217 wrqu->data.length = (current_ev - extra);
218 wrqu->data.flags = 0;
223 static int wlcompat_ioctl(struct net_device *dev,
224 struct iw_request_info *info,
225 union iwreq_data *wrqu,
230 strcpy(wrqu->name, "IEEE 802.11-DS");
236 if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
239 wrqu->freq.m = ci.target_channel;
245 if (wrqu->freq.e == 1) {
247 int f = wrqu->freq.m / 100000;
248 while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
251 if (channel == NUM_CHANNELS) // channel not found
255 wrqu->freq.m = channel + 1;
257 if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
258 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
267 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
268 if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
276 if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
279 wrqu->essid.flags = wrqu->data.flags = 1;
280 wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
281 memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
287 memset(&ssid, 0, sizeof(ssid));
288 ssid.SSID_len = strlen(extra);
289 if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
290 ssid.SSID_len = WLC_ESSID_MAX_SIZE;
291 memcpy(ssid.SSID, extra, ssid.SSID_len);
292 if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
298 if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
304 if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
310 if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
316 if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
322 wrqu->txpower.value = 0;
323 if (wl_ioctl(dev,WLC_GET_TXPWR, &(wrqu->txpower.value), sizeof(int)) < 0)
325 wrqu->txpower.fixed = 0;
326 wrqu->txpower.disabled = 0;
327 wrqu->txpower.flags = IW_TXPOW_MWATT;
332 if (wrqu->txpower.flags != IW_TXPOW_MWATT)
335 if (wl_ioctl(dev, WLC_SET_TXPWR, &wrqu->txpower.value, sizeof(int)) < 0)
340 wrqu->data.flags = IW_ENCODE_DISABLED;
345 return wlcompat_ioctl_getiwrange(dev, extra);
350 int ap = -1, infra = -1, passive = 0, wet = 0;
352 switch (wrqu->mode) {
353 case IW_MODE_MONITOR:
377 if (wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive)) < 0)
379 if (wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive)) < 0)
381 if (wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet)) < 0)
384 if (wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap)) < 0)
387 if (wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra)) < 0)
395 int ap, infra, wet, passive;
397 if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
399 if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
401 if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
403 if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
407 wrqu->mode = IW_MODE_MONITOR;
409 wrqu->mode = IW_MODE_ADHOC;
412 wrqu->mode = IW_MODE_MASTER;
415 wrqu->mode = IW_MODE_REPEAT;
417 wrqu->mode = IW_MODE_INFRA;
432 static const iw_handler wlcompat_handler[] = {
433 NULL, /* SIOCSIWCOMMIT */
434 wlcompat_ioctl, /* SIOCGIWNAME */
435 NULL, /* SIOCSIWNWID */
436 NULL, /* SIOCGIWNWID */
437 wlcompat_ioctl, /* SIOCSIWFREQ */
438 wlcompat_ioctl, /* SIOCGIWFREQ */
439 wlcompat_ioctl, /* SIOCSIWMODE */
440 wlcompat_ioctl, /* SIOCGIWMODE */
441 NULL, /* SIOCSIWSENS */
442 NULL, /* SIOCGIWSENS */
443 NULL, /* SIOCSIWRANGE, unused */
444 wlcompat_ioctl, /* SIOCGIWRANGE */
445 NULL, /* SIOCSIWPRIV */
446 NULL, /* SIOCGIWPRIV */
447 NULL, /* SIOCSIWSTATS */
448 NULL, /* SIOCGIWSTATS */
449 iw_handler_set_spy, /* SIOCSIWSPY */
450 iw_handler_get_spy, /* SIOCGIWSPY */
451 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
452 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
453 NULL, /* SIOCSIWAP */
454 wlcompat_ioctl, /* SIOCGIWAP */
455 NULL, /* -- hole -- */
456 NULL, /* SIOCGIWAPLIST */
457 wlcompat_set_scan, /* SIOCSIWSCAN */
458 wlcompat_get_scan, /* SIOCGIWSCAN */
459 wlcompat_ioctl, /* SIOCSIWESSID */
460 wlcompat_ioctl, /* SIOCGIWESSID */
461 NULL, /* SIOCSIWNICKN */
462 NULL, /* SIOCGIWNICKN */
463 NULL, /* -- hole -- */
464 NULL, /* -- hole -- */
465 NULL, /* SIOCSIWRATE */
466 NULL, /* SIOCGIWRATE */
467 wlcompat_ioctl, /* SIOCSIWRTS */
468 wlcompat_ioctl, /* SIOCGIWRTS */
469 wlcompat_ioctl, /* SIOCSIWFRAG */
470 wlcompat_ioctl, /* SIOCGIWFRAG */
471 wlcompat_ioctl, /* SIOCSIWTXPOW */
472 wlcompat_ioctl, /* SIOCGIWTXPOW */
473 NULL, /* SIOCSIWRETRY */
474 NULL, /* SIOCGIWRETRY */
475 NULL, /* SIOCSIWENCODE */
476 wlcompat_ioctl, /* SIOCGIWENCODE */
479 static const struct iw_handler_def wlcompat_handler_def =
481 .standard = (iw_handler *) wlcompat_handler,
482 .num_standard = sizeof(wlcompat_handler)/sizeof(iw_handler),
485 .private_args = NULL,
486 .num_private_args = 0,
490 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
491 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
492 int ret = old_ioctl(dev,ifr,cmd);
493 printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
494 if (cmd==SIOCDEVPRIVATE) {
496 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
497 unsigned char *buf = ioc->buf;
498 printk(" cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
500 for (x=0;x<ioc->len && x<128 ;x++) {
501 printk("%02X",buf[x]);
509 static int __init wlcompat_init()
511 dev = dev_get_by_name("eth1");
513 old_ioctl = dev->do_ioctl;
514 dev->do_ioctl = new_ioctl;
516 dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
520 static void __exit wlcompat_exit()
522 dev->wireless_handlers = NULL;
524 dev->do_ioctl = old_ioctl;
530 MODULE_AUTHOR("openwrt.org");
531 MODULE_LICENSE("GPL");
533 module_init(wlcompat_init);
534 module_exit(wlcompat_exit);