1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
|
// insert header here
// mbm. gpl.
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/if_arp.h>
#include <asm/uaccess.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
#include <wlioctl.h>
#define DEBUG
static struct net_device *dev;
/* The frequency of each channel in MHz */
const long channel_frequency[] = {
2412, 2417, 2422, 2427, 2432, 2437, 2442,
2447, 2452, 2457, 2462, 2467, 2472, 2484
};
#define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
{
mm_segment_t old_fs = get_fs();
struct ifreq ifr;
int ret;
wl_ioctl_t ioc;
ioc.cmd = cmd;
ioc.buf = buf;
ioc.len = len;
strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
ifr.ifr_data = (caddr_t) &ioc;
set_fs(KERNEL_DS);
ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
set_fs (old_fs);
return ret;
}
static int wlcompat_ioctl_getiwrange(struct net_device *dev,
char *extra)
{
int i, k;
struct iw_range *range;
range = (struct iw_range *) extra;
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = WIRELESS_EXT;
range->min_nwid = range->max_nwid = 0;
range->num_channels = NUM_CHANNELS;
k = 0;
for (i = 0; i < NUM_CHANNELS; i++) {
range->freq[k].i = i + 1;
range->freq[k].m = channel_frequency[i] * 100000;
range->freq[k].e = 1;
k++;
if (k >= IW_MAX_FREQUENCIES)
break;
}
range->num_frequency = k;
range->sensitivity = 3;
/* nbd: don't know what this means, but other drivers set it this way */
range->pmp_flags = IW_POWER_PERIOD;
range->pmt_flags = IW_POWER_TIMEOUT;
range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
range->min_rts = 0;
if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
range->max_rts = 2347;
range->min_frag = 256;
if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
range->max_frag = 2346;
range->min_pmp = 0;
range->max_pmp = 65535000;
range->min_pmt = 0;
range->max_pmt = 65535 * 1000;
range->txpower_capa = IW_TXPOW_MWATT;
return 0;
}
static int wlcompat_ioctl(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu,
char *extra)
{
switch (info->cmd) {
case SIOCGIWNAME:
strcpy(wrqu->name, "IEEE 802.11-DS");
break;
case SIOCGIWFREQ:
{
channel_info_t ci;
if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
return -EINVAL;
wrqu->freq.m = ci.target_channel;
wrqu->freq.e = 0;
break;
}
case SIOCSIWFREQ:
{
if (wrqu->freq.e == 1) {
int channel = 0;
int f = wrqu->freq.m / 100000;
while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
channel++;
if (channel == NUM_CHANNELS) // channel not found
return -EINVAL;
wrqu->freq.e = 0;
wrqu->freq.m = channel + 1;
}
if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
return -EINVAL;
} else {
return -EINVAL;
}
}
case SIOCGIWAP:
{
wrqu->ap_addr.sa_family = ARPHRD_ETHER;
if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
return -EINVAL;
break;
}
case SIOCGIWESSID:
{
wlc_ssid_t ssid;
if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
return -EINVAL;
wrqu->essid.flags = wrqu->data.flags = 1;
wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
break;
}
case SIOCSIWESSID:
{
wlc_ssid_t ssid;
memset(&ssid, 0, sizeof(ssid));
ssid.SSID_len = strlen(extra);
if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
ssid.SSID_len = WLC_ESSID_MAX_SIZE;
memcpy(ssid.SSID, extra, ssid.SSID_len);
if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
return -EINVAL;
break;
}
case SIOCGIWRTS:
{
if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCGIWFRAG:
{
if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
return -EINVAL;
break;
}
case SIOCGIWTXPOW:
{
wrqu->txpower.value = 0;
if (wl_ioctl(dev,WLC_GET_TXPWR, &(wrqu->txpower.value), sizeof(int)) < 0)
return -EINVAL;
wrqu->txpower.fixed = 0;
wrqu->txpower.disabled = 0;
wrqu->txpower.flags = IW_TXPOW_MWATT;
break;
}
case SIOCSIWTXPOW:
{
if (wrqu->txpower.flags != IW_TXPOW_MWATT)
return -EINVAL;
if (wl_ioctl(dev, WLC_SET_TXPWR, &wrqu->txpower.value, sizeof(int)) < 0)
return -EINVAL;
}
case SIOCGIWENCODE:
{
wrqu->data.flags = IW_ENCODE_DISABLED;
break;
}
case SIOCGIWRANGE:
{
return wlcompat_ioctl_getiwrange(dev, extra);
break;
}
case SIOCSIWMODE:
{
int ap = -1, infra = -1, passive = 0, wet = 0;
switch (wrqu->mode) {
case IW_MODE_MONITOR:
passive = 1;
break;
case IW_MODE_ADHOC:
infra = 0;
ap = 0;
break;
case IW_MODE_MASTER:
infra = 1;
ap = 1;
break;
case IW_MODE_INFRA:
infra = 1;
ap = 0;
break;
case IW_MODE_REPEAT:
infra = 1;
ap = 0;
wet = 1;
break;
default:
return -EINVAL;
}
if (wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet)) < 0)
return -EINVAL;
if (ap >= 0)
if (wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap)) < 0)
return -EINVAL;
if (infra >= 0)
if (wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra)) < 0)
return -EINVAL;
break;
}
case SIOCGIWMODE:
{
int ap, infra, wet, passive;
if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
return -EINVAL;
if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
return -EINVAL;
if (passive) {
wrqu->mode = IW_MODE_MONITOR;
} else if (!infra) {
wrqu->mode = IW_MODE_ADHOC;
} else {
if (ap) {
wrqu->mode = IW_MODE_MASTER;
} else {
if (wet) {
wrqu->mode = IW_MODE_REPEAT;
} else {
wrqu->mode = IW_MODE_INFRA;
}
}
}
break;
}
default:
{
return -EINVAL;
}
}
return 0;
}
static const iw_handler wlcompat_handler[] = {
NULL, /* SIOCSIWCOMMIT */
wlcompat_ioctl, /* SIOCGIWNAME */
NULL, /* SIOCSIWNWID */
NULL, /* SIOCGIWNWID */
wlcompat_ioctl, /* SIOCSIWFREQ */
wlcompat_ioctl, /* SIOCGIWFREQ */
wlcompat_ioctl, /* SIOCSIWMODE */
wlcompat_ioctl, /* SIOCGIWMODE */
NULL, /* SIOCSIWSENS */
NULL, /* SIOCGIWSENS */
NULL, /* SIOCSIWRANGE */
wlcompat_ioctl, /* SIOCGIWRANGE */
NULL, /* SIOCSIWPRIV */
NULL, /* SIOCGIWPRIV */
NULL, /* SIOCSIWSTATS */
NULL, /* SIOCGIWSTATS */
iw_handler_set_spy, /* SIOCSIWSPY */
iw_handler_get_spy, /* SIOCGIWSPY */
iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
NULL, /* SIOCSIWAP */
wlcompat_ioctl, /* SIOCGIWAP */
NULL, /* -- hole -- */
NULL, /* SIOCGIWAPLIST */
NULL, /* -- hole -- */
NULL, /* -- hole -- */
wlcompat_ioctl, /* SIOCSIWESSID */
wlcompat_ioctl, /* SIOCGIWESSID */
NULL, /* SIOCSIWNICKN */
NULL, /* SIOCGIWNICKN */
NULL, /* -- hole -- */
NULL, /* -- hole -- */
NULL, /* SIOCSIWRATE */
NULL, /* SIOCGIWRATE */
NULL, /* SIOCSIWRTS */
wlcompat_ioctl, /* SIOCGIWRTS */
NULL, /* SIOCSIWFRAG */
wlcompat_ioctl, /* SIOCGIWFRAG */
wlcompat_ioctl, /* SIOCSIWTXPOW */
wlcompat_ioctl, /* SIOCGIWTXPOW */
NULL, /* SIOCSIWRETRY */
NULL, /* SIOCGIWRETRY */
NULL, /* SIOCSIWENCODE */
wlcompat_ioctl, /* SIOCGIWENCODE */
};
static const struct iw_handler_def wlcompat_handler_def =
{
.standard = (iw_handler *) wlcompat_handler,
.num_standard = sizeof(wlcompat_handler)/sizeof(iw_handler),
.private = NULL,
.num_private = 0,
.private_args = NULL,
.num_private_args = 0,
};
#ifdef DEBUG
static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
int ret = old_ioctl(dev,ifr,cmd);
printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
if (cmd==SIOCDEVPRIVATE) {
int x;
wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
unsigned char *buf = ioc->buf;
printk(" cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
printk(" ->");
for (x=0;x<ioc->len && x<128 ;x++) {
printk("%02X",buf[x]);
}
printk("\n");
}
return ret;
}
#endif
static int __init wlcompat_init()
{
dev = dev_get_by_name("eth1");
#ifdef DEBUG
old_ioctl = dev->do_ioctl;
dev->do_ioctl = new_ioctl;
#endif
dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
return 0;
}
static void __exit wlcompat_exit()
{
dev->wireless_handlers = NULL;
#ifdef DEBUG
dev->do_ioctl = old_ioctl;
#endif
return;
}
EXPORT_NO_SYMBOLS;
MODULE_AUTHOR("openwrt.org");
MODULE_LICENSE("GPL");
module_init(wlcompat_init);
module_exit(wlcompat_exit);
|
