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signals: consolidate checks for whether or not to ignore a signal
[deliverable/linux.git] / drivers / net / wireless / rndis_wlan.c
1 /*
2 * Driver for RNDIS based wireless USB devices.
3 *
4 * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
5 * Copyright (C) 2008 by Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (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 * Portions of this file are based on NDISwrapper project,
22 * Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
23 * http://ndiswrapper.sourceforge.net/
24 */
25
26 // #define DEBUG // error path messages, extra info
27 // #define VERBOSE // more; success messages
28
29 #include <linux/module.h>
30 #include <linux/init.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/ethtool.h>
34 #include <linux/workqueue.h>
35 #include <linux/mutex.h>
36 #include <linux/mii.h>
37 #include <linux/usb.h>
38 #include <linux/usb/cdc.h>
39 #include <linux/wireless.h>
40 #include <linux/if_arp.h>
41 #include <linux/ctype.h>
42 #include <linux/spinlock.h>
43 #include <net/iw_handler.h>
44 #include <net/ieee80211.h>
45 #include <linux/usb/usbnet.h>
46 #include <linux/usb/rndis_host.h>
47
48
49 /* NOTE: All these are settings for Broadcom chipset */
50 static char modparam_country[4] = "EU";
51 module_param_string(country, modparam_country, 4, 0444);
52 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
53
54 static int modparam_frameburst = 1;
55 module_param_named(frameburst, modparam_frameburst, int, 0444);
56 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
57
58 static int modparam_afterburner = 0;
59 module_param_named(afterburner, modparam_afterburner, int, 0444);
60 MODULE_PARM_DESC(afterburner,
61 "enable afterburner aka '125 High Speed Mode' (default: off)");
62
63 static int modparam_power_save = 0;
64 module_param_named(power_save, modparam_power_save, int, 0444);
65 MODULE_PARM_DESC(power_save,
66 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
67
68 static int modparam_power_output = 3;
69 module_param_named(power_output, modparam_power_output, int, 0444);
70 MODULE_PARM_DESC(power_output,
71 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
72
73 static int modparam_roamtrigger = -70;
74 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
75 MODULE_PARM_DESC(roamtrigger,
76 "set roaming dBm trigger: -80=optimize for distance, "
77 "-60=bandwidth (default: -70)");
78
79 static int modparam_roamdelta = 1;
80 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
81 MODULE_PARM_DESC(roamdelta,
82 "set roaming tendency: 0=aggressive, 1=moderate, "
83 "2=conservative (default: moderate)");
84
85 static int modparam_workaround_interval = 500;
86 module_param_named(workaround_interval, modparam_workaround_interval,
87 int, 0444);
88 MODULE_PARM_DESC(workaround_interval,
89 "set stall workaround interval in msecs (default: 500)");
90
91
92 /* various RNDIS OID defs */
93 #define OID_GEN_LINK_SPEED ccpu2(0x00010107)
94 #define OID_GEN_RNDIS_CONFIG_PARAMETER ccpu2(0x0001021b)
95
96 #define OID_GEN_XMIT_OK ccpu2(0x00020101)
97 #define OID_GEN_RCV_OK ccpu2(0x00020102)
98 #define OID_GEN_XMIT_ERROR ccpu2(0x00020103)
99 #define OID_GEN_RCV_ERROR ccpu2(0x00020104)
100 #define OID_GEN_RCV_NO_BUFFER ccpu2(0x00020105)
101
102 #define OID_802_3_PERMANENT_ADDRESS ccpu2(0x01010101)
103 #define OID_802_3_CURRENT_ADDRESS ccpu2(0x01010102)
104 #define OID_802_3_MULTICAST_LIST ccpu2(0x01010103)
105 #define OID_802_3_MAXIMUM_LIST_SIZE ccpu2(0x01010104)
106
107 #define OID_802_11_BSSID ccpu2(0x0d010101)
108 #define OID_802_11_SSID ccpu2(0x0d010102)
109 #define OID_802_11_INFRASTRUCTURE_MODE ccpu2(0x0d010108)
110 #define OID_802_11_ADD_WEP ccpu2(0x0d010113)
111 #define OID_802_11_REMOVE_WEP ccpu2(0x0d010114)
112 #define OID_802_11_DISASSOCIATE ccpu2(0x0d010115)
113 #define OID_802_11_AUTHENTICATION_MODE ccpu2(0x0d010118)
114 #define OID_802_11_PRIVACY_FILTER ccpu2(0x0d010119)
115 #define OID_802_11_BSSID_LIST_SCAN ccpu2(0x0d01011a)
116 #define OID_802_11_ENCRYPTION_STATUS ccpu2(0x0d01011b)
117 #define OID_802_11_ADD_KEY ccpu2(0x0d01011d)
118 #define OID_802_11_REMOVE_KEY ccpu2(0x0d01011e)
119 #define OID_802_11_PMKID ccpu2(0x0d010123)
120 #define OID_802_11_NETWORK_TYPES_SUPPORTED ccpu2(0x0d010203)
121 #define OID_802_11_NETWORK_TYPE_IN_USE ccpu2(0x0d010204)
122 #define OID_802_11_TX_POWER_LEVEL ccpu2(0x0d010205)
123 #define OID_802_11_RSSI ccpu2(0x0d010206)
124 #define OID_802_11_RSSI_TRIGGER ccpu2(0x0d010207)
125 #define OID_802_11_FRAGMENTATION_THRESHOLD ccpu2(0x0d010209)
126 #define OID_802_11_RTS_THRESHOLD ccpu2(0x0d01020a)
127 #define OID_802_11_SUPPORTED_RATES ccpu2(0x0d01020e)
128 #define OID_802_11_CONFIGURATION ccpu2(0x0d010211)
129 #define OID_802_11_BSSID_LIST ccpu2(0x0d010217)
130
131
132 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
133 #define WL_NOISE -96 /* typical noise level in dBm */
134 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
135
136
137 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
138 * based on wireless rndis) has default txpower of 13dBm.
139 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
140 * 13dBm == 19.9mW
141 */
142 #define BCM4320_DEFAULT_TXPOWER 20
143
144
145 /* codes for "status" field of completion messages */
146 #define RNDIS_STATUS_ADAPTER_NOT_READY ccpu2(0xc0010011)
147 #define RNDIS_STATUS_ADAPTER_NOT_OPEN ccpu2(0xc0010012)
148
149
150 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
151 * slightly modified for datatype endianess, etc
152 */
153 #define NDIS_802_11_LENGTH_SSID 32
154 #define NDIS_802_11_LENGTH_RATES 8
155 #define NDIS_802_11_LENGTH_RATES_EX 16
156
157 enum ndis_80211_net_type {
158 ndis_80211_type_freq_hop,
159 ndis_80211_type_direct_seq,
160 ndis_80211_type_ofdm_a,
161 ndis_80211_type_ofdm_g
162 };
163
164 enum ndis_80211_net_infra {
165 ndis_80211_infra_adhoc,
166 ndis_80211_infra_infra,
167 ndis_80211_infra_auto_unknown
168 };
169
170 enum ndis_80211_auth_mode {
171 ndis_80211_auth_open,
172 ndis_80211_auth_shared,
173 ndis_80211_auth_auto_switch,
174 ndis_80211_auth_wpa,
175 ndis_80211_auth_wpa_psk,
176 ndis_80211_auth_wpa_none,
177 ndis_80211_auth_wpa2,
178 ndis_80211_auth_wpa2_psk
179 };
180
181 enum ndis_80211_encr_status {
182 ndis_80211_encr_wep_enabled,
183 ndis_80211_encr_disabled,
184 ndis_80211_encr_wep_key_absent,
185 ndis_80211_encr_not_supported,
186 ndis_80211_encr_tkip_enabled,
187 ndis_80211_encr_tkip_key_absent,
188 ndis_80211_encr_ccmp_enabled,
189 ndis_80211_encr_ccmp_key_absent
190 };
191
192 enum ndis_80211_priv_filter {
193 ndis_80211_priv_accept_all,
194 ndis_80211_priv_8021x_wep
195 };
196
197 struct ndis_80211_ssid {
198 __le32 length;
199 u8 essid[NDIS_802_11_LENGTH_SSID];
200 } __attribute__((packed));
201
202 struct ndis_80211_conf_freq_hop {
203 __le32 length;
204 __le32 hop_pattern;
205 __le32 hop_set;
206 __le32 dwell_time;
207 } __attribute__((packed));
208
209 struct ndis_80211_conf {
210 __le32 length;
211 __le32 beacon_period;
212 __le32 atim_window;
213 __le32 ds_config;
214 struct ndis_80211_conf_freq_hop fh_config;
215 } __attribute__((packed));
216
217 struct ndis_80211_bssid_ex {
218 __le32 length;
219 u8 mac[6];
220 u8 padding[2];
221 struct ndis_80211_ssid ssid;
222 __le32 privacy;
223 __le32 rssi;
224 __le32 net_type;
225 struct ndis_80211_conf config;
226 __le32 net_infra;
227 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
228 __le32 ie_length;
229 u8 ies[0];
230 } __attribute__((packed));
231
232 struct ndis_80211_bssid_list_ex {
233 __le32 num_items;
234 struct ndis_80211_bssid_ex bssid[0];
235 } __attribute__((packed));
236
237 struct ndis_80211_fixed_ies {
238 u8 timestamp[8];
239 __le16 beacon_interval;
240 __le16 capabilities;
241 } __attribute__((packed));
242
243 struct ndis_80211_wep_key {
244 __le32 size;
245 __le32 index;
246 __le32 length;
247 u8 material[32];
248 } __attribute__((packed));
249
250 struct ndis_80211_key {
251 __le32 size;
252 __le32 index;
253 __le32 length;
254 u8 bssid[6];
255 u8 padding[6];
256 u8 rsc[8];
257 u8 material[32];
258 } __attribute__((packed));
259
260 struct ndis_80211_remove_key {
261 __le32 size;
262 __le32 index;
263 u8 bssid[6];
264 } __attribute__((packed));
265
266 struct ndis_config_param {
267 __le32 name_offs;
268 __le32 name_length;
269 __le32 type;
270 __le32 value_offs;
271 __le32 value_length;
272 } __attribute__((packed));
273
274 /* these have to match what is in wpa_supplicant */
275 enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
276 enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
277 CIPHER_WEP104 };
278 enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE,
279 KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE };
280
281 /*
282 * private data
283 */
284 #define NET_TYPE_11FB 0
285
286 #define CAP_MODE_80211A 1
287 #define CAP_MODE_80211B 2
288 #define CAP_MODE_80211G 4
289 #define CAP_MODE_MASK 7
290 #define CAP_SUPPORT_TXPOWER 8
291
292 #define WORK_CONNECTION_EVENT (1<<0)
293 #define WORK_SET_MULTICAST_LIST (1<<1)
294
295 /* RNDIS device private data */
296 struct rndis_wext_private {
297 char name[32];
298
299 struct usbnet *usbdev;
300
301 struct workqueue_struct *workqueue;
302 struct delayed_work stats_work;
303 struct work_struct work;
304 struct mutex command_lock;
305 spinlock_t stats_lock;
306 unsigned long work_pending;
307
308 struct iw_statistics iwstats;
309 struct iw_statistics privstats;
310
311 int nick_len;
312 char nick[32];
313
314 int caps;
315 int multicast_size;
316
317 /* module parameters */
318 char param_country[4];
319 int param_frameburst;
320 int param_afterburner;
321 int param_power_save;
322 int param_power_output;
323 int param_roamtrigger;
324 int param_roamdelta;
325 u32 param_workaround_interval;
326
327 /* hardware state */
328 int radio_on;
329 int infra_mode;
330 struct ndis_80211_ssid essid;
331
332 /* encryption stuff */
333 int encr_tx_key_index;
334 char encr_keys[4][32];
335 int encr_key_len[4];
336 int wpa_version;
337 int wpa_keymgmt;
338 int wpa_authalg;
339 int wpa_ie_len;
340 u8 *wpa_ie;
341 int wpa_cipher_pair;
342 int wpa_cipher_group;
343 };
344
345
346 static const int freq_chan[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
347 2447, 2452, 2457, 2462, 2467, 2472, 2484 };
348
349 static const int rates_80211g[8] = { 6, 9, 12, 18, 24, 36, 48, 54 };
350
351 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
352
353 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
354 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
355 0xff, 0xff, 0xff };
356
357
358 static struct rndis_wext_private *get_rndis_wext_priv(struct usbnet *dev)
359 {
360 return (struct rndis_wext_private *)dev->driver_priv;
361 }
362
363
364 static u32 get_bcm4320_power(struct rndis_wext_private *priv)
365 {
366 return BCM4320_DEFAULT_TXPOWER *
367 bcm4320_power_output[priv->param_power_output] / 100;
368 }
369
370
371 /* translate error code */
372 static int rndis_error_status(__le32 rndis_status)
373 {
374 int ret = -EINVAL;
375 switch (rndis_status) {
376 case RNDIS_STATUS_SUCCESS:
377 ret = 0;
378 break;
379 case RNDIS_STATUS_FAILURE:
380 case RNDIS_STATUS_INVALID_DATA:
381 ret = -EINVAL;
382 break;
383 case RNDIS_STATUS_NOT_SUPPORTED:
384 ret = -EOPNOTSUPP;
385 break;
386 case RNDIS_STATUS_ADAPTER_NOT_READY:
387 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
388 ret = -EBUSY;
389 break;
390 }
391 return ret;
392 }
393
394
395 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
396 {
397 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
398 union {
399 void *buf;
400 struct rndis_msg_hdr *header;
401 struct rndis_query *get;
402 struct rndis_query_c *get_c;
403 } u;
404 int ret, buflen;
405
406 buflen = *len + sizeof(*u.get);
407 if (buflen < CONTROL_BUFFER_SIZE)
408 buflen = CONTROL_BUFFER_SIZE;
409 u.buf = kmalloc(buflen, GFP_KERNEL);
410 if (!u.buf)
411 return -ENOMEM;
412 memset(u.get, 0, sizeof *u.get);
413 u.get->msg_type = RNDIS_MSG_QUERY;
414 u.get->msg_len = ccpu2(sizeof *u.get);
415 u.get->oid = oid;
416
417 mutex_lock(&priv->command_lock);
418 ret = rndis_command(dev, u.header);
419 mutex_unlock(&priv->command_lock);
420
421 if (ret == 0) {
422 ret = le32_to_cpu(u.get_c->len);
423 *len = (*len > ret) ? ret : *len;
424 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
425 ret = rndis_error_status(u.get_c->status);
426 }
427
428 kfree(u.buf);
429 return ret;
430 }
431
432
433 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
434 {
435 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
436 union {
437 void *buf;
438 struct rndis_msg_hdr *header;
439 struct rndis_set *set;
440 struct rndis_set_c *set_c;
441 } u;
442 int ret, buflen;
443
444 buflen = len + sizeof(*u.set);
445 if (buflen < CONTROL_BUFFER_SIZE)
446 buflen = CONTROL_BUFFER_SIZE;
447 u.buf = kmalloc(buflen, GFP_KERNEL);
448 if (!u.buf)
449 return -ENOMEM;
450
451 memset(u.set, 0, sizeof *u.set);
452 u.set->msg_type = RNDIS_MSG_SET;
453 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
454 u.set->oid = oid;
455 u.set->len = cpu_to_le32(len);
456 u.set->offset = ccpu2(sizeof(*u.set) - 8);
457 u.set->handle = ccpu2(0);
458 memcpy(u.buf + sizeof(*u.set), data, len);
459
460 mutex_lock(&priv->command_lock);
461 ret = rndis_command(dev, u.header);
462 mutex_unlock(&priv->command_lock);
463
464 if (ret == 0)
465 ret = rndis_error_status(u.set_c->status);
466
467 kfree(u.buf);
468 return ret;
469 }
470
471
472 /*
473 * Specs say that we can only set config parameters only soon after device
474 * initialization.
475 * value_type: 0 = u32, 2 = unicode string
476 */
477 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
478 int value_type, void *value)
479 {
480 struct ndis_config_param *infobuf;
481 int value_len, info_len, param_len, ret, i;
482 __le16 *unibuf;
483 __le32 *dst_value;
484
485 if (value_type == 0)
486 value_len = sizeof(__le32);
487 else if (value_type == 2)
488 value_len = strlen(value) * sizeof(__le16);
489 else
490 return -EINVAL;
491
492 param_len = strlen(param) * sizeof(__le16);
493 info_len = sizeof(*infobuf) + param_len + value_len;
494
495 #ifdef DEBUG
496 info_len += 12;
497 #endif
498 infobuf = kmalloc(info_len, GFP_KERNEL);
499 if (!infobuf)
500 return -ENOMEM;
501
502 #ifdef DEBUG
503 info_len -= 12;
504 /* extra 12 bytes are for padding (debug output) */
505 memset(infobuf, 0xCC, info_len + 12);
506 #endif
507
508 if (value_type == 2)
509 devdbg(dev, "setting config parameter: %s, value: %s",
510 param, (u8 *)value);
511 else
512 devdbg(dev, "setting config parameter: %s, value: %d",
513 param, *(u32 *)value);
514
515 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
516 infobuf->name_length = cpu_to_le32(param_len);
517 infobuf->type = cpu_to_le32(value_type);
518 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
519 infobuf->value_length = cpu_to_le32(value_len);
520
521 /* simple string to unicode string conversion */
522 unibuf = (void *)infobuf + sizeof(*infobuf);
523 for (i = 0; i < param_len / sizeof(__le16); i++)
524 unibuf[i] = cpu_to_le16(param[i]);
525
526 if (value_type == 2) {
527 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
528 for (i = 0; i < value_len / sizeof(__le16); i++)
529 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
530 } else {
531 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
532 *dst_value = cpu_to_le32(*(u32 *)value);
533 }
534
535 #ifdef DEBUG
536 devdbg(dev, "info buffer (len: %d):", info_len);
537 for (i = 0; i < info_len; i += 12) {
538 u32 *tmp = (u32 *)((u8 *)infobuf + i);
539 devdbg(dev, "%08X:%08X:%08X",
540 cpu_to_be32(tmp[0]),
541 cpu_to_be32(tmp[1]),
542 cpu_to_be32(tmp[2]));
543 }
544 #endif
545
546 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
547 infobuf, info_len);
548 if (ret != 0)
549 devdbg(dev, "setting rndis config paramater failed, %d.", ret);
550
551 kfree(infobuf);
552 return ret;
553 }
554
555 static int rndis_set_config_parameter_str(struct usbnet *dev,
556 char *param, char *value)
557 {
558 return(rndis_set_config_parameter(dev, param, 2, value));
559 }
560
561 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
562 char *param, u32 value)
563 {
564 return(rndis_set_config_parameter(dev, param, 0, &value));
565 }*/
566
567
568 /*
569 * data conversion functions
570 */
571 static int level_to_qual(int level)
572 {
573 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
574 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
575 }
576
577
578 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
579 {
580 freq->e = 0;
581 freq->i = 0;
582 freq->flags = 0;
583
584 /* see comment in wireless.h above the "struct iw_freq"
585 * definition for an explanation of this if
586 * NOTE: 1000000 is due to the kHz
587 */
588 if (dsconfig > 1000000) {
589 freq->m = dsconfig / 10;
590 freq->e = 1;
591 } else
592 freq->m = dsconfig;
593
594 /* convert from kHz to Hz */
595 freq->e += 3;
596 }
597
598
599 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
600 {
601 if (freq->m < 1000 && freq->e == 0) {
602 if (freq->m >= 1 &&
603 freq->m <= (sizeof(freq_chan) / sizeof(freq_chan[0])))
604 *dsconfig = freq_chan[freq->m - 1] * 1000;
605 else
606 return -1;
607 } else {
608 int i;
609 *dsconfig = freq->m;
610 for (i = freq->e; i > 0; i--)
611 *dsconfig *= 10;
612 *dsconfig /= 1000;
613 }
614
615 return 0;
616 }
617
618
619 /*
620 * common functions
621 */
622 static int
623 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
624
625 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
626 {
627 int ret, len;
628
629 len = sizeof(*ssid);
630 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
631
632 if (ret != 0)
633 ssid->length = 0;
634
635 #ifdef DEBUG
636 {
637 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
638
639 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
640 tmp[le32_to_cpu(ssid->length)] = 0;
641 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
642 }
643 #endif
644 return ret;
645 }
646
647
648 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
649 {
650 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
651 int ret;
652
653 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
654 if (ret == 0) {
655 memcpy(&priv->essid, ssid, sizeof(priv->essid));
656 priv->radio_on = 1;
657 devdbg(usbdev, "set_essid: radio_on = 1");
658 }
659
660 return ret;
661 }
662
663
664 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
665 {
666 int ret, len;
667
668 len = ETH_ALEN;
669 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
670
671 if (ret != 0)
672 memset(bssid, 0, ETH_ALEN);
673
674 return ret;
675 }
676
677
678 static int is_associated(struct usbnet *usbdev)
679 {
680 u8 bssid[ETH_ALEN];
681 int ret;
682
683 ret = get_bssid(usbdev, bssid);
684
685 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
686 }
687
688
689 static int disassociate(struct usbnet *usbdev, int reset_ssid)
690 {
691 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
692 struct ndis_80211_ssid ssid;
693 int i, ret = 0;
694
695 if (priv->radio_on) {
696 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
697 if (ret == 0) {
698 priv->radio_on = 0;
699 devdbg(usbdev, "disassociate: radio_on = 0");
700
701 if (reset_ssid)
702 msleep(100);
703 }
704 }
705
706 /* disassociate causes radio to be turned off; if reset_ssid
707 * is given, set random ssid to enable radio */
708 if (reset_ssid) {
709 ssid.length = cpu_to_le32(sizeof(ssid.essid));
710 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
711 ssid.essid[0] = 0x1;
712 ssid.essid[1] = 0xff;
713 for (i = 2; i < sizeof(ssid.essid); i++)
714 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
715 ret = set_essid(usbdev, &ssid);
716 }
717 return ret;
718 }
719
720
721 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
722 {
723 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
724 __le32 tmp;
725 int auth_mode, ret;
726
727 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
728 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
729
730 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
731 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
732 auth_mode = ndis_80211_auth_wpa2;
733 else
734 auth_mode = ndis_80211_auth_wpa2_psk;
735 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
736 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
737 auth_mode = ndis_80211_auth_wpa;
738 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
739 auth_mode = ndis_80211_auth_wpa_psk;
740 else
741 auth_mode = ndis_80211_auth_wpa_none;
742 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
743 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
744 auth_mode = ndis_80211_auth_auto_switch;
745 else
746 auth_mode = ndis_80211_auth_shared;
747 } else
748 auth_mode = ndis_80211_auth_open;
749
750 tmp = cpu_to_le32(auth_mode);
751 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
752 sizeof(tmp));
753 if (ret != 0) {
754 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
755 return ret;
756 }
757
758 priv->wpa_version = wpa_version;
759 priv->wpa_authalg = authalg;
760 return 0;
761 }
762
763
764 static int set_priv_filter(struct usbnet *usbdev)
765 {
766 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
767 __le32 tmp;
768
769 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
770
771 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
772 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
773 tmp = cpu_to_le32(ndis_80211_priv_8021x_wep);
774 else
775 tmp = cpu_to_le32(ndis_80211_priv_accept_all);
776
777 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
778 sizeof(tmp));
779 }
780
781
782 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
783 {
784 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
785 __le32 tmp;
786 int encr_mode, ret;
787
788 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
789 pairwise,
790 groupwise);
791
792 if (pairwise & IW_AUTH_CIPHER_CCMP)
793 encr_mode = ndis_80211_encr_ccmp_enabled;
794 else if (pairwise & IW_AUTH_CIPHER_TKIP)
795 encr_mode = ndis_80211_encr_tkip_enabled;
796 else if (pairwise &
797 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
798 encr_mode = ndis_80211_encr_wep_enabled;
799 else if (groupwise & IW_AUTH_CIPHER_CCMP)
800 encr_mode = ndis_80211_encr_ccmp_enabled;
801 else if (groupwise & IW_AUTH_CIPHER_TKIP)
802 encr_mode = ndis_80211_encr_tkip_enabled;
803 else
804 encr_mode = ndis_80211_encr_disabled;
805
806 tmp = cpu_to_le32(encr_mode);
807 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
808 sizeof(tmp));
809 if (ret != 0) {
810 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
811 return ret;
812 }
813
814 priv->wpa_cipher_pair = pairwise;
815 priv->wpa_cipher_group = groupwise;
816 return 0;
817 }
818
819
820 static int set_assoc_params(struct usbnet *usbdev)
821 {
822 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
823
824 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
825 set_priv_filter(usbdev);
826 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
827
828 return 0;
829 }
830
831
832 static int set_infra_mode(struct usbnet *usbdev, int mode)
833 {
834 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
835 __le32 tmp;
836 int ret, i;
837
838 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
839
840 tmp = cpu_to_le32(mode);
841 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
842 sizeof(tmp));
843 if (ret != 0) {
844 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
845 return ret;
846 }
847
848 /* NDIS drivers clear keys when infrastructure mode is
849 * changed. But Linux tools assume otherwise. So set the
850 * keys */
851 if (priv->wpa_keymgmt == 0 ||
852 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
853 for (i = 0; i < 4; i++) {
854 if (priv->encr_key_len[i] > 0)
855 add_wep_key(usbdev, priv->encr_keys[i],
856 priv->encr_key_len[i], i);
857 }
858 }
859
860 priv->infra_mode = mode;
861 return 0;
862 }
863
864
865 static void set_default_iw_params(struct usbnet *usbdev)
866 {
867 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
868
869 priv->wpa_keymgmt = 0;
870 priv->wpa_version = 0;
871
872 set_infra_mode(usbdev, ndis_80211_infra_infra);
873 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
874 IW_AUTH_ALG_OPEN_SYSTEM);
875 set_priv_filter(usbdev);
876 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
877 }
878
879
880 static int deauthenticate(struct usbnet *usbdev)
881 {
882 int ret;
883
884 ret = disassociate(usbdev, 1);
885 set_default_iw_params(usbdev);
886 return ret;
887 }
888
889
890 /* index must be 0 - N, as per NDIS */
891 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
892 {
893 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
894 struct ndis_80211_wep_key ndis_key;
895 int ret;
896
897 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
898 return -EINVAL;
899
900 memset(&ndis_key, 0, sizeof(ndis_key));
901
902 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
903 ndis_key.length = cpu_to_le32(key_len);
904 ndis_key.index = cpu_to_le32(index);
905 memcpy(&ndis_key.material, key, key_len);
906
907 if (index == priv->encr_tx_key_index) {
908 ndis_key.index |= cpu_to_le32(1 << 31);
909 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
910 IW_AUTH_CIPHER_NONE);
911 if (ret)
912 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
913 ret);
914 }
915
916 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
917 sizeof(ndis_key));
918 if (ret != 0) {
919 devwarn(usbdev, "adding encryption key %d failed (%08X)",
920 index+1, ret);
921 return ret;
922 }
923
924 priv->encr_key_len[index] = key_len;
925 memcpy(&priv->encr_keys[index], key, key_len);
926
927 return 0;
928 }
929
930
931 /* remove_key is for both wep and wpa */
932 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
933 {
934 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
935 struct ndis_80211_remove_key remove_key;
936 __le32 keyindex;
937 int ret;
938
939 if (priv->encr_key_len[index] == 0)
940 return 0;
941
942 priv->encr_key_len[index] = 0;
943 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
944
945 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
946 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
947 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
948 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
949 remove_key.size = cpu_to_le32(sizeof(remove_key));
950 remove_key.index = cpu_to_le32(index);
951 if (bssid) {
952 /* pairwise key */
953 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
954 remove_key.index |= cpu_to_le32(1 << 30);
955 memcpy(remove_key.bssid, bssid,
956 sizeof(remove_key.bssid));
957 } else
958 memset(remove_key.bssid, 0xff,
959 sizeof(remove_key.bssid));
960
961 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
962 sizeof(remove_key));
963 if (ret != 0)
964 return ret;
965 } else {
966 keyindex = cpu_to_le32(index);
967 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
968 sizeof(keyindex));
969 if (ret != 0) {
970 devwarn(usbdev,
971 "removing encryption key %d failed (%08X)",
972 index, ret);
973 return ret;
974 }
975 }
976
977 /* if it is transmit key, disable encryption */
978 if (index == priv->encr_tx_key_index)
979 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
980
981 return 0;
982 }
983
984
985 static void set_multicast_list(struct usbnet *usbdev)
986 {
987 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
988 struct dev_mc_list *mclist;
989 __le32 filter;
990 int ret, i, size;
991 char *buf;
992
993 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
994
995 if (usbdev->net->flags & IFF_PROMISC) {
996 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
997 RNDIS_PACKET_TYPE_ALL_LOCAL;
998 } else if (usbdev->net->flags & IFF_ALLMULTI ||
999 usbdev->net->mc_count > priv->multicast_size) {
1000 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1001 } else if (usbdev->net->mc_count > 0) {
1002 size = min(priv->multicast_size, usbdev->net->mc_count);
1003 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1004 if (!buf) {
1005 devwarn(usbdev,
1006 "couldn't alloc %d bytes of memory",
1007 size * ETH_ALEN);
1008 return;
1009 }
1010
1011 mclist = usbdev->net->mc_list;
1012 for (i = 0; i < size && mclist; mclist = mclist->next) {
1013 if (mclist->dmi_addrlen != ETH_ALEN)
1014 continue;
1015
1016 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1017 i++;
1018 }
1019
1020 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1021 i * ETH_ALEN);
1022 if (ret == 0 && i > 0)
1023 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1024 else
1025 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1026
1027 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1028 i, priv->multicast_size, ret);
1029
1030 kfree(buf);
1031 }
1032
1033 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1034 sizeof(filter));
1035 if (ret < 0) {
1036 devwarn(usbdev, "couldn't set packet filter: %08x",
1037 le32_to_cpu(filter));
1038 }
1039
1040 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1041 le32_to_cpu(filter), ret);
1042 }
1043
1044
1045 /*
1046 * wireless extension handlers
1047 */
1048
1049 static int rndis_iw_commit(struct net_device *dev,
1050 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1051 {
1052 /* dummy op */
1053 return 0;
1054 }
1055
1056
1057 static int rndis_iw_get_range(struct net_device *dev,
1058 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1059 {
1060 struct iw_range *range = (struct iw_range *)extra;
1061 struct usbnet *usbdev = dev->priv;
1062 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1063 int len, ret, i, j, num, has_80211g_rates;
1064 u8 rates[8];
1065 __le32 tx_power;
1066
1067 devdbg(usbdev, "SIOCGIWRANGE");
1068
1069 /* clear iw_range struct */
1070 memset(range, 0, sizeof(*range));
1071 wrqu->data.length = sizeof(*range);
1072
1073 range->txpower_capa = IW_TXPOW_MWATT;
1074 range->num_txpower = 1;
1075 if (priv->caps & CAP_SUPPORT_TXPOWER) {
1076 len = sizeof(tx_power);
1077 ret = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
1078 &tx_power, &len);
1079 if (ret == 0 && le32_to_cpu(tx_power) != 0xFF)
1080 range->txpower[0] = le32_to_cpu(tx_power);
1081 else
1082 range->txpower[0] = get_bcm4320_power(priv);
1083 } else
1084 range->txpower[0] = get_bcm4320_power(priv);
1085
1086 len = sizeof(rates);
1087 ret = rndis_query_oid(usbdev, OID_802_11_SUPPORTED_RATES, &rates,
1088 &len);
1089 has_80211g_rates = 0;
1090 if (ret == 0) {
1091 j = 0;
1092 for (i = 0; i < len; i++) {
1093 if (rates[i] == 0)
1094 break;
1095 range->bitrate[j] = (rates[i] & 0x7f) * 500000;
1096 /* check for non 802.11b rates */
1097 if (range->bitrate[j] == 6000000 ||
1098 range->bitrate[j] == 9000000 ||
1099 (range->bitrate[j] >= 12000000 &&
1100 range->bitrate[j] != 22000000))
1101 has_80211g_rates = 1;
1102 j++;
1103 }
1104 range->num_bitrates = j;
1105 } else
1106 range->num_bitrates = 0;
1107
1108 /* fill in 802.11g rates */
1109 if (has_80211g_rates) {
1110 num = range->num_bitrates;
1111 for (i = 0; i < sizeof(rates_80211g); i++) {
1112 for (j = 0; j < num; j++) {
1113 if (range->bitrate[j] ==
1114 rates_80211g[i] * 1000000)
1115 break;
1116 }
1117 if (j == num)
1118 range->bitrate[range->num_bitrates++] =
1119 rates_80211g[i] * 1000000;
1120 if (range->num_bitrates == IW_MAX_BITRATES)
1121 break;
1122 }
1123
1124 /* estimated max real througput in bps */
1125 range->throughput = 54 * 1000 * 1000 / 2;
1126
1127 /* ~35% more with afterburner */
1128 if (priv->param_afterburner)
1129 range->throughput = range->throughput / 100 * 135;
1130 } else {
1131 /* estimated max real througput in bps */
1132 range->throughput = 11 * 1000 * 1000 / 2;
1133 }
1134
1135 range->num_channels = (sizeof(freq_chan)/sizeof(freq_chan[0]));
1136
1137 for (i = 0; i < (sizeof(freq_chan)/sizeof(freq_chan[0])) &&
1138 i < IW_MAX_FREQUENCIES; i++) {
1139 range->freq[i].i = i + 1;
1140 range->freq[i].m = freq_chan[i] * 100000;
1141 range->freq[i].e = 1;
1142 }
1143 range->num_frequency = i;
1144
1145 range->min_rts = 0;
1146 range->max_rts = 2347;
1147 range->min_frag = 256;
1148 range->max_frag = 2346;
1149
1150 range->max_qual.qual = 100;
1151 range->max_qual.level = 154;
1152 range->max_qual.updated = IW_QUAL_QUAL_UPDATED
1153 | IW_QUAL_LEVEL_UPDATED
1154 | IW_QUAL_NOISE_INVALID;
1155
1156 range->we_version_compiled = WIRELESS_EXT;
1157 range->we_version_source = WIRELESS_EXT;
1158
1159 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
1160 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
1161 return 0;
1162 }
1163
1164
1165 static int rndis_iw_get_name(struct net_device *dev,
1166 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1167 {
1168 struct usbnet *usbdev = dev->priv;
1169 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1170
1171 strcpy(wrqu->name, priv->name);
1172 return 0;
1173 }
1174
1175
1176 static int rndis_iw_set_essid(struct net_device *dev,
1177 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1178 {
1179 struct ndis_80211_ssid ssid;
1180 int length = wrqu->essid.length;
1181 struct usbnet *usbdev = dev->priv;
1182
1183 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1184 wrqu->essid.flags, wrqu->essid.length, essid);
1185
1186 if (length > NDIS_802_11_LENGTH_SSID)
1187 length = NDIS_802_11_LENGTH_SSID;
1188
1189 ssid.length = cpu_to_le32(length);
1190 if (length > 0)
1191 memcpy(ssid.essid, essid, length);
1192 else
1193 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1194
1195 set_assoc_params(usbdev);
1196
1197 if (!wrqu->essid.flags || length == 0)
1198 return disassociate(usbdev, 1);
1199 else
1200 return set_essid(usbdev, &ssid);
1201 }
1202
1203
1204 static int rndis_iw_get_essid(struct net_device *dev,
1205 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1206 {
1207 struct ndis_80211_ssid ssid;
1208 struct usbnet *usbdev = dev->priv;
1209 int ret;
1210
1211 ret = get_essid(usbdev, &ssid);
1212
1213 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1214 wrqu->essid.flags = 1;
1215 wrqu->essid.length = le32_to_cpu(ssid.length);
1216 memcpy(essid, ssid.essid, wrqu->essid.length);
1217 essid[wrqu->essid.length] = 0;
1218 } else {
1219 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1220 wrqu->essid.flags = 0;
1221 wrqu->essid.length = 0;
1222 }
1223 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1224 return ret;
1225 }
1226
1227
1228 static int rndis_iw_get_bssid(struct net_device *dev,
1229 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1230 {
1231 struct usbnet *usbdev = dev->priv;
1232 unsigned char bssid[ETH_ALEN];
1233 int ret;
1234 DECLARE_MAC_BUF(mac);
1235
1236 ret = get_bssid(usbdev, bssid);
1237
1238 if (ret == 0)
1239 devdbg(usbdev, "SIOCGIWAP: %s", print_mac(mac, bssid));
1240 else
1241 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1242
1243 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1244 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1245
1246 return ret;
1247 }
1248
1249
1250 static int rndis_iw_set_bssid(struct net_device *dev,
1251 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1252 {
1253 struct usbnet *usbdev = dev->priv;
1254 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1255 DECLARE_MAC_BUF(mac);
1256 int ret;
1257
1258 devdbg(usbdev, "SIOCSIWAP: %s", print_mac(mac, bssid));
1259
1260 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1261
1262 /* user apps may set ap's mac address, which is not required;
1263 * they may fail to work if this function fails, so return
1264 * success */
1265 if (ret)
1266 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1267
1268 return 0;
1269 }
1270
1271
1272 static int rndis_iw_set_auth(struct net_device *dev,
1273 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1274 {
1275 struct iw_param *p = &wrqu->param;
1276 struct usbnet *usbdev = dev->priv;
1277 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1278 int ret = -ENOTSUPP;
1279
1280 switch (p->flags & IW_AUTH_INDEX) {
1281 case IW_AUTH_WPA_VERSION:
1282 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1283 priv->wpa_version = p->value;
1284 ret = 0;
1285 break;
1286
1287 case IW_AUTH_CIPHER_PAIRWISE:
1288 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1289 priv->wpa_cipher_pair = p->value;
1290 ret = 0;
1291 break;
1292
1293 case IW_AUTH_CIPHER_GROUP:
1294 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1295 priv->wpa_cipher_group = p->value;
1296 ret = 0;
1297 break;
1298
1299 case IW_AUTH_KEY_MGMT:
1300 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1301 priv->wpa_keymgmt = p->value;
1302 ret = 0;
1303 break;
1304
1305 case IW_AUTH_TKIP_COUNTERMEASURES:
1306 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1307 p->value);
1308 ret = 0;
1309 break;
1310
1311 case IW_AUTH_DROP_UNENCRYPTED:
1312 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1313 ret = 0;
1314 break;
1315
1316 case IW_AUTH_80211_AUTH_ALG:
1317 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1318 priv->wpa_authalg = p->value;
1319 ret = 0;
1320 break;
1321
1322 case IW_AUTH_WPA_ENABLED:
1323 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1324 if (wrqu->param.value)
1325 deauthenticate(usbdev);
1326 ret = 0;
1327 break;
1328
1329 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1330 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1331 p->value);
1332 ret = 0;
1333 break;
1334
1335 case IW_AUTH_ROAMING_CONTROL:
1336 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1337 ret = 0;
1338 break;
1339
1340 case IW_AUTH_PRIVACY_INVOKED:
1341 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1342 wrqu->param.flags & IW_AUTH_INDEX);
1343 return -EOPNOTSUPP;
1344
1345 default:
1346 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1347 p->flags & IW_AUTH_INDEX, p->value);
1348 }
1349 return ret;
1350 }
1351
1352
1353 static int rndis_iw_get_auth(struct net_device *dev,
1354 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1355 {
1356 struct iw_param *p = &wrqu->param;
1357 struct usbnet *usbdev = dev->priv;
1358 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1359
1360 switch (p->flags & IW_AUTH_INDEX) {
1361 case IW_AUTH_WPA_VERSION:
1362 p->value = priv->wpa_version;
1363 break;
1364 case IW_AUTH_CIPHER_PAIRWISE:
1365 p->value = priv->wpa_cipher_pair;
1366 break;
1367 case IW_AUTH_CIPHER_GROUP:
1368 p->value = priv->wpa_cipher_group;
1369 break;
1370 case IW_AUTH_KEY_MGMT:
1371 p->value = priv->wpa_keymgmt;
1372 break;
1373 case IW_AUTH_80211_AUTH_ALG:
1374 p->value = priv->wpa_authalg;
1375 break;
1376 default:
1377 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1378 wrqu->param.flags & IW_AUTH_INDEX);
1379 return -EOPNOTSUPP;
1380 }
1381 return 0;
1382 }
1383
1384
1385 static int rndis_iw_get_mode(struct net_device *dev,
1386 struct iw_request_info *info,
1387 union iwreq_data *wrqu, char *extra)
1388 {
1389 struct usbnet *usbdev = dev->priv;
1390 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1391
1392 switch (priv->infra_mode) {
1393 case ndis_80211_infra_adhoc:
1394 wrqu->mode = IW_MODE_ADHOC;
1395 break;
1396 case ndis_80211_infra_infra:
1397 wrqu->mode = IW_MODE_INFRA;
1398 break;
1399 /*case ndis_80211_infra_auto_unknown:*/
1400 default:
1401 wrqu->mode = IW_MODE_AUTO;
1402 break;
1403 }
1404 devdbg(usbdev, "SIOCGIWMODE: %08x", wrqu->mode);
1405 return 0;
1406 }
1407
1408
1409 static int rndis_iw_set_mode(struct net_device *dev,
1410 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1411 {
1412 struct usbnet *usbdev = dev->priv;
1413 int mode;
1414
1415 devdbg(usbdev, "SIOCSIWMODE: %08x", wrqu->mode);
1416
1417 switch (wrqu->mode) {
1418 case IW_MODE_ADHOC:
1419 mode = ndis_80211_infra_adhoc;
1420 break;
1421 case IW_MODE_INFRA:
1422 mode = ndis_80211_infra_infra;
1423 break;
1424 /*case IW_MODE_AUTO:*/
1425 default:
1426 mode = ndis_80211_infra_auto_unknown;
1427 break;
1428 }
1429
1430 return set_infra_mode(usbdev, mode);
1431 }
1432
1433
1434 static int rndis_iw_set_encode(struct net_device *dev,
1435 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1436 {
1437 struct usbnet *usbdev = dev->priv;
1438 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1439 int ret, index, key_len;
1440 u8 *key;
1441
1442 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1443
1444 /* iwconfig gives index as 1 - N */
1445 if (index > 0)
1446 index--;
1447 else
1448 index = priv->encr_tx_key_index;
1449
1450 if (index < 0 || index >= 4) {
1451 devwarn(usbdev, "encryption index out of range (%u)", index);
1452 return -EINVAL;
1453 }
1454
1455 /* remove key if disabled */
1456 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1457 if (remove_key(usbdev, index, NULL))
1458 return -EINVAL;
1459 else
1460 return 0;
1461 }
1462
1463 /* global encryption state (for all keys) */
1464 if (wrqu->data.flags & IW_ENCODE_OPEN)
1465 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1466 IW_AUTH_ALG_OPEN_SYSTEM);
1467 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1468 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1469 IW_AUTH_ALG_SHARED_KEY);
1470 if (ret != 0)
1471 return ret;
1472
1473 if (wrqu->data.length > 0) {
1474 key_len = wrqu->data.length;
1475 key = extra;
1476 } else {
1477 /* must be set as tx key */
1478 if (priv->encr_key_len[index] == 0)
1479 return -EINVAL;
1480 key_len = priv->encr_key_len[index];
1481 key = priv->encr_keys[index];
1482 priv->encr_tx_key_index = index;
1483 }
1484
1485 if (add_wep_key(usbdev, key, key_len, index) != 0)
1486 return -EINVAL;
1487
1488 if (index == priv->encr_tx_key_index)
1489 /* ndis drivers want essid to be set after setting encr */
1490 set_essid(usbdev, &priv->essid);
1491
1492 return 0;
1493 }
1494
1495
1496 static int rndis_iw_set_encode_ext(struct net_device *dev,
1497 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1498 {
1499 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1500 struct usbnet *usbdev = dev->priv;
1501 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1502 struct ndis_80211_key ndis_key;
1503 int keyidx, ret;
1504 u8 *addr;
1505
1506 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1507
1508 /* iwconfig gives index as 1 - N */
1509 if (keyidx)
1510 keyidx--;
1511 else
1512 keyidx = priv->encr_tx_key_index;
1513
1514 if (keyidx < 0 || keyidx >= 4)
1515 return -EINVAL;
1516
1517 if (ext->alg == WPA_ALG_WEP) {
1518 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1519 priv->encr_tx_key_index = keyidx;
1520 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1521 }
1522
1523 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1524 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1525 return remove_key(usbdev, keyidx, NULL);
1526
1527 if (ext->key_len > sizeof(ndis_key.material))
1528 return -1;
1529
1530 memset(&ndis_key, 0, sizeof(ndis_key));
1531
1532 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1533 sizeof(ndis_key.material) + ext->key_len);
1534 ndis_key.length = cpu_to_le32(ext->key_len);
1535 ndis_key.index = cpu_to_le32(keyidx);
1536
1537 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
1538 memcpy(ndis_key.rsc, ext->rx_seq, 6);
1539 ndis_key.index |= cpu_to_le32(1 << 29);
1540 }
1541
1542 addr = ext->addr.sa_data;
1543 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
1544 /* group key */
1545 if (priv->infra_mode == ndis_80211_infra_adhoc)
1546 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1547 else
1548 get_bssid(usbdev, ndis_key.bssid);
1549 } else {
1550 /* pairwise key */
1551 ndis_key.index |= cpu_to_le32(1 << 30);
1552 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1553 }
1554
1555 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1556 ndis_key.index |= cpu_to_le32(1 << 31);
1557
1558 if (ext->alg == IW_ENCODE_ALG_TKIP && ext->key_len == 32) {
1559 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1560 * different order than NDIS spec, so swap the order here. */
1561 memcpy(ndis_key.material, ext->key, 16);
1562 memcpy(ndis_key.material + 16, ext->key + 24, 8);
1563 memcpy(ndis_key.material + 24, ext->key + 16, 8);
1564 } else
1565 memcpy(ndis_key.material, ext->key, ext->key_len);
1566
1567 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1568 le32_to_cpu(ndis_key.size));
1569 devdbg(usbdev, "SIOCSIWENCODEEXT: OID_802_11_ADD_KEY -> %08X", ret);
1570 if (ret != 0)
1571 return ret;
1572
1573 priv->encr_key_len[keyidx] = ext->key_len;
1574 memcpy(&priv->encr_keys[keyidx], ndis_key.material, ext->key_len);
1575 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1576 priv->encr_tx_key_index = keyidx;
1577
1578 return 0;
1579 }
1580
1581
1582 static int rndis_iw_set_scan(struct net_device *dev,
1583 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1584 {
1585 struct iw_param *param = &wrqu->param;
1586 struct usbnet *usbdev = dev->priv;
1587 union iwreq_data evt;
1588 int ret = -EINVAL;
1589 __le32 tmp;
1590
1591 devdbg(usbdev, "SIOCSIWSCAN");
1592
1593 if (param->flags == 0) {
1594 tmp = ccpu2(1);
1595 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1596 sizeof(tmp));
1597 evt.data.flags = 0;
1598 evt.data.length = 0;
1599 wireless_send_event(dev, SIOCGIWSCAN, &evt, NULL);
1600 }
1601 return ret;
1602 }
1603
1604
1605 static char *rndis_translate_scan(struct net_device *dev,
1606 char *cev, char *end_buf, struct ndis_80211_bssid_ex *bssid)
1607 {
1608 #ifdef DEBUG
1609 struct usbnet *usbdev = dev->priv;
1610 #endif
1611 struct ieee80211_info_element *ie;
1612 char *current_val;
1613 int bssid_len, ie_len, i;
1614 u32 beacon, atim;
1615 struct iw_event iwe;
1616 unsigned char sbuf[32];
1617 DECLARE_MAC_BUF(mac);
1618
1619 bssid_len = le32_to_cpu(bssid->length);
1620
1621 devdbg(usbdev, "BSSID %s", print_mac(mac, bssid->mac));
1622 iwe.cmd = SIOCGIWAP;
1623 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1624 memcpy(iwe.u.ap_addr.sa_data, bssid->mac, ETH_ALEN);
1625 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1626
1627 devdbg(usbdev, "SSID(%d) %s", le32_to_cpu(bssid->ssid.length),
1628 bssid->ssid.essid);
1629 iwe.cmd = SIOCGIWESSID;
1630 iwe.u.essid.length = le32_to_cpu(bssid->ssid.length);
1631 iwe.u.essid.flags = 1;
1632 cev = iwe_stream_add_point(cev, end_buf, &iwe, bssid->ssid.essid);
1633
1634 devdbg(usbdev, "MODE %d", le32_to_cpu(bssid->net_infra));
1635 iwe.cmd = SIOCGIWMODE;
1636 switch (le32_to_cpu(bssid->net_infra)) {
1637 case ndis_80211_infra_adhoc:
1638 iwe.u.mode = IW_MODE_ADHOC;
1639 break;
1640 case ndis_80211_infra_infra:
1641 iwe.u.mode = IW_MODE_INFRA;
1642 break;
1643 /*case ndis_80211_infra_auto_unknown:*/
1644 default:
1645 iwe.u.mode = IW_MODE_AUTO;
1646 break;
1647 }
1648 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
1649
1650 devdbg(usbdev, "FREQ %d kHz", le32_to_cpu(bssid->config.ds_config));
1651 iwe.cmd = SIOCGIWFREQ;
1652 dsconfig_to_freq(le32_to_cpu(bssid->config.ds_config), &iwe.u.freq);
1653 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1654
1655 devdbg(usbdev, "QUAL %d", le32_to_cpu(bssid->rssi));
1656 iwe.cmd = IWEVQUAL;
1657 iwe.u.qual.qual = level_to_qual(le32_to_cpu(bssid->rssi));
1658 iwe.u.qual.level = le32_to_cpu(bssid->rssi);
1659 iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED
1660 | IW_QUAL_LEVEL_UPDATED
1661 | IW_QUAL_NOISE_INVALID;
1662 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1663
1664 devdbg(usbdev, "ENCODE %d", le32_to_cpu(bssid->privacy));
1665 iwe.cmd = SIOCGIWENCODE;
1666 iwe.u.data.length = 0;
1667 if (le32_to_cpu(bssid->privacy) == ndis_80211_priv_accept_all)
1668 iwe.u.data.flags = IW_ENCODE_DISABLED;
1669 else
1670 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1671
1672 cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
1673
1674 devdbg(usbdev, "RATES:");
1675 current_val = cev + IW_EV_LCP_LEN;
1676 iwe.cmd = SIOCGIWRATE;
1677 for (i = 0; i < sizeof(bssid->rates); i++) {
1678 if (bssid->rates[i] & 0x7f) {
1679 iwe.u.bitrate.value =
1680 ((bssid->rates[i] & 0x7f) *
1681 500000);
1682 devdbg(usbdev, " %d", iwe.u.bitrate.value);
1683 current_val = iwe_stream_add_value(cev,
1684 current_val, end_buf, &iwe,
1685 IW_EV_PARAM_LEN);
1686 }
1687 }
1688
1689 if ((current_val - cev) > IW_EV_LCP_LEN)
1690 cev = current_val;
1691
1692 beacon = le32_to_cpu(bssid->config.beacon_period);
1693 devdbg(usbdev, "BCN_INT %d", beacon);
1694 iwe.cmd = IWEVCUSTOM;
1695 snprintf(sbuf, sizeof(sbuf), "bcn_int=%d", beacon);
1696 iwe.u.data.length = strlen(sbuf);
1697 cev = iwe_stream_add_point(cev, end_buf, &iwe, sbuf);
1698
1699 atim = le32_to_cpu(bssid->config.atim_window);
1700 devdbg(usbdev, "ATIM %d", atim);
1701 iwe.cmd = IWEVCUSTOM;
1702 snprintf(sbuf, sizeof(sbuf), "atim=%u", atim);
1703 iwe.u.data.length = strlen(sbuf);
1704 cev = iwe_stream_add_point(cev, end_buf, &iwe, sbuf);
1705
1706 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1707 ie_len = min(bssid_len - (int)sizeof(*bssid),
1708 (int)le32_to_cpu(bssid->ie_length));
1709 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1710 while (ie_len >= sizeof(*ie) && sizeof(*ie) + ie->len <= ie_len) {
1711 if ((ie->id == MFIE_TYPE_GENERIC && ie->len >= 4 &&
1712 memcmp(ie->data, "\x00\x50\xf2\x01", 4) == 0) ||
1713 ie->id == MFIE_TYPE_RSN) {
1714 devdbg(usbdev, "IE: WPA%d",
1715 (ie->id == MFIE_TYPE_RSN) ? 2 : 1);
1716 iwe.cmd = IWEVGENIE;
1717 iwe.u.data.length = min(ie->len + 2, MAX_WPA_IE_LEN);
1718 cev = iwe_stream_add_point(cev, end_buf, &iwe,
1719 (u8 *)ie);
1720 }
1721
1722 ie_len -= sizeof(*ie) + ie->len;
1723 ie = (struct ieee80211_info_element *)&ie->data[ie->len];
1724 }
1725
1726 return cev;
1727 }
1728
1729
1730 static int rndis_iw_get_scan(struct net_device *dev,
1731 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1732 {
1733 struct usbnet *usbdev = dev->priv;
1734 void *buf = NULL;
1735 char *cev = extra;
1736 struct ndis_80211_bssid_list_ex *bssid_list;
1737 struct ndis_80211_bssid_ex *bssid;
1738 int ret = -EINVAL, len, count, bssid_len;
1739
1740 devdbg(usbdev, "SIOCGIWSCAN");
1741
1742 len = CONTROL_BUFFER_SIZE;
1743 buf = kmalloc(len, GFP_KERNEL);
1744 if (!buf) {
1745 ret = -ENOMEM;
1746 goto out;
1747 }
1748
1749 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1750
1751 if (ret != 0)
1752 goto out;
1753
1754 bssid_list = buf;
1755 bssid = bssid_list->bssid;
1756 bssid_len = le32_to_cpu(bssid->length);
1757 count = le32_to_cpu(bssid_list->num_items);
1758 devdbg(usbdev, "SIOCGIWSCAN: %d BSSIDs found", count);
1759
1760 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1761 cev = rndis_translate_scan(dev, cev, extra + IW_SCAN_MAX_DATA,
1762 bssid);
1763 bssid = (void *)bssid + bssid_len;
1764 bssid_len = le32_to_cpu(bssid->length);
1765 count--;
1766 }
1767
1768 out:
1769 wrqu->data.length = cev - extra;
1770 wrqu->data.flags = 0;
1771 kfree(buf);
1772 return ret;
1773 }
1774
1775
1776 static int rndis_iw_set_genie(struct net_device *dev,
1777 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1778 {
1779 struct usbnet *usbdev = dev->priv;
1780 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1781 int ret = 0;
1782
1783 #ifdef DEBUG
1784 int j;
1785 u8 *gie = extra;
1786 for (j = 0; j < wrqu->data.length; j += 8)
1787 devdbg(usbdev,
1788 "SIOCSIWGENIE %04x - "
1789 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1790 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1791 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1792 #endif
1793 /* clear existing IEs */
1794 if (priv->wpa_ie_len) {
1795 kfree(priv->wpa_ie);
1796 priv->wpa_ie_len = 0;
1797 }
1798
1799 /* set new IEs */
1800 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1801 if (priv->wpa_ie) {
1802 priv->wpa_ie_len = wrqu->data.length;
1803 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1804 } else
1805 ret = -ENOMEM;
1806 return ret;
1807 }
1808
1809
1810 static int rndis_iw_get_genie(struct net_device *dev,
1811 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1812 {
1813 struct usbnet *usbdev = dev->priv;
1814 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1815
1816 devdbg(usbdev, "SIOCGIWGENIE");
1817
1818 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1819 wrqu->data.length = 0;
1820 return 0;
1821 }
1822
1823 if (wrqu->data.length < priv->wpa_ie_len)
1824 return -E2BIG;
1825
1826 wrqu->data.length = priv->wpa_ie_len;
1827 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1828
1829 return 0;
1830 }
1831
1832
1833 static int rndis_iw_set_rts(struct net_device *dev,
1834 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1835 {
1836 struct usbnet *usbdev = dev->priv;
1837 __le32 tmp;
1838 devdbg(usbdev, "SIOCSIWRTS");
1839
1840 tmp = cpu_to_le32(wrqu->rts.value);
1841 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1842 sizeof(tmp));
1843 }
1844
1845
1846 static int rndis_iw_get_rts(struct net_device *dev,
1847 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1848 {
1849 struct usbnet *usbdev = dev->priv;
1850 __le32 tmp;
1851 int len, ret;
1852
1853 len = sizeof(tmp);
1854 ret = rndis_query_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp, &len);
1855 if (ret == 0) {
1856 wrqu->rts.value = le32_to_cpu(tmp);
1857 wrqu->rts.flags = 1;
1858 wrqu->rts.disabled = 0;
1859 }
1860
1861 devdbg(usbdev, "SIOCGIWRTS: %d", wrqu->rts.value);
1862
1863 return ret;
1864 }
1865
1866
1867 static int rndis_iw_set_frag(struct net_device *dev,
1868 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1869 {
1870 struct usbnet *usbdev = dev->priv;
1871 __le32 tmp;
1872
1873 devdbg(usbdev, "SIOCSIWFRAG");
1874
1875 tmp = cpu_to_le32(wrqu->frag.value);
1876 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1877 sizeof(tmp));
1878 }
1879
1880
1881 static int rndis_iw_get_frag(struct net_device *dev,
1882 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1883 {
1884 struct usbnet *usbdev = dev->priv;
1885 __le32 tmp;
1886 int len, ret;
1887
1888 len = sizeof(tmp);
1889 ret = rndis_query_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1890 &len);
1891 if (ret == 0) {
1892 wrqu->frag.value = le32_to_cpu(tmp);
1893 wrqu->frag.flags = 1;
1894 wrqu->frag.disabled = 0;
1895 }
1896 devdbg(usbdev, "SIOCGIWFRAG: %d", wrqu->frag.value);
1897 return ret;
1898 }
1899
1900
1901 static int rndis_iw_set_nick(struct net_device *dev,
1902 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1903 {
1904 struct usbnet *usbdev = dev->priv;
1905 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1906
1907 devdbg(usbdev, "SIOCSIWNICK");
1908
1909 priv->nick_len = wrqu->data.length;
1910 if (priv->nick_len > 32)
1911 priv->nick_len = 32;
1912
1913 memcpy(priv->nick, extra, priv->nick_len);
1914 return 0;
1915 }
1916
1917
1918 static int rndis_iw_get_nick(struct net_device *dev,
1919 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1920 {
1921 struct usbnet *usbdev = dev->priv;
1922 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1923
1924 wrqu->data.flags = 1;
1925 wrqu->data.length = priv->nick_len;
1926 memcpy(extra, priv->nick, priv->nick_len);
1927
1928 devdbg(usbdev, "SIOCGIWNICK: '%s'", priv->nick);
1929
1930 return 0;
1931 }
1932
1933
1934 static int rndis_iw_set_freq(struct net_device *dev,
1935 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1936 {
1937 struct usbnet *usbdev = dev->priv;
1938 struct ndis_80211_conf config;
1939 unsigned int dsconfig;
1940 int len, ret;
1941
1942 /* this OID is valid only when not associated */
1943 if (is_associated(usbdev))
1944 return 0;
1945
1946 dsconfig = 0;
1947 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
1948 return -EINVAL;
1949
1950 len = sizeof(config);
1951 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1952 if (ret != 0) {
1953 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
1954 return 0;
1955 }
1956
1957 config.ds_config = cpu_to_le32(dsconfig);
1958
1959 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
1960 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1961 sizeof(config));
1962 }
1963
1964
1965 static int rndis_iw_get_freq(struct net_device *dev,
1966 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1967 {
1968 struct usbnet *usbdev = dev->priv;
1969 struct ndis_80211_conf config;
1970 int len, ret;
1971
1972 len = sizeof(config);
1973 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1974 if (ret == 0)
1975 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
1976
1977 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
1978 return ret;
1979 }
1980
1981
1982 static int rndis_iw_get_txpower(struct net_device *dev,
1983 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1984 {
1985 struct usbnet *usbdev = dev->priv;
1986 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1987 __le32 tx_power;
1988 int ret = 0, len;
1989
1990 if (priv->radio_on) {
1991 if (priv->caps & CAP_SUPPORT_TXPOWER) {
1992 len = sizeof(tx_power);
1993 ret = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
1994 &tx_power, &len);
1995 if (ret != 0)
1996 return ret;
1997 } else
1998 /* fake incase not supported */
1999 tx_power = cpu_to_le32(get_bcm4320_power(priv));
2000
2001 wrqu->txpower.flags = IW_TXPOW_MWATT;
2002 wrqu->txpower.value = le32_to_cpu(tx_power);
2003 wrqu->txpower.disabled = 0;
2004 } else {
2005 wrqu->txpower.flags = IW_TXPOW_MWATT;
2006 wrqu->txpower.value = 0;
2007 wrqu->txpower.disabled = 1;
2008 }
2009
2010 devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
2011
2012 return ret;
2013 }
2014
2015
2016 static int rndis_iw_set_txpower(struct net_device *dev,
2017 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2018 {
2019 struct usbnet *usbdev = dev->priv;
2020 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2021 __le32 tx_power = 0;
2022 int ret = 0;
2023
2024 if (!wrqu->txpower.disabled) {
2025 if (wrqu->txpower.flags == IW_TXPOW_MWATT)
2026 tx_power = cpu_to_le32(wrqu->txpower.value);
2027 else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
2028 if (wrqu->txpower.value > 20)
2029 tx_power = cpu_to_le32(128);
2030 else if (wrqu->txpower.value < -43)
2031 tx_power = cpu_to_le32(127);
2032 else {
2033 signed char tmp;
2034 tmp = wrqu->txpower.value;
2035 tmp = -12 - tmp;
2036 tmp <<= 2;
2037 tx_power = cpu_to_le32((unsigned char)tmp);
2038 }
2039 }
2040 }
2041
2042 devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
2043
2044 if (le32_to_cpu(tx_power) != 0) {
2045 if (priv->caps & CAP_SUPPORT_TXPOWER) {
2046 /* turn radio on first */
2047 if (!priv->radio_on)
2048 disassociate(usbdev, 1);
2049
2050 ret = rndis_set_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
2051 &tx_power, sizeof(tx_power));
2052 if (ret != 0)
2053 ret = -EOPNOTSUPP;
2054 return ret;
2055 } else {
2056 /* txpower unsupported, just turn radio on */
2057 if (!priv->radio_on)
2058 return disassociate(usbdev, 1);
2059 return 0; /* all ready on */
2060 }
2061 }
2062
2063 /* tx_power == 0, turn off radio */
2064 return disassociate(usbdev, 0);
2065 }
2066
2067
2068 static int rndis_iw_get_rate(struct net_device *dev,
2069 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2070 {
2071 struct usbnet *usbdev = dev->priv;
2072 __le32 tmp;
2073 int ret, len;
2074
2075 len = sizeof(tmp);
2076 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
2077 if (ret == 0) {
2078 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
2079 wrqu->bitrate.disabled = 0;
2080 wrqu->bitrate.flags = 1;
2081 }
2082 return ret;
2083 }
2084
2085
2086 static int rndis_iw_set_mlme(struct net_device *dev,
2087 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2088 {
2089 struct usbnet *usbdev = dev->priv;
2090 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2091 struct iw_mlme *mlme = (struct iw_mlme *)extra;
2092 unsigned char bssid[ETH_ALEN];
2093
2094 get_bssid(usbdev, bssid);
2095
2096 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
2097 return -EINVAL;
2098
2099 switch (mlme->cmd) {
2100 case IW_MLME_DEAUTH:
2101 return deauthenticate(usbdev);
2102 case IW_MLME_DISASSOC:
2103 return disassociate(usbdev, priv->radio_on);
2104 default:
2105 return -EOPNOTSUPP;
2106 }
2107
2108 return 0;
2109 }
2110
2111
2112 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
2113 {
2114 struct usbnet *usbdev = dev->priv;
2115 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2116 unsigned long flags;
2117
2118 spin_lock_irqsave(&priv->stats_lock, flags);
2119 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
2120 spin_unlock_irqrestore(&priv->stats_lock, flags);
2121
2122 return &priv->iwstats;
2123 }
2124
2125
2126 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2127 static const iw_handler rndis_iw_handler[] =
2128 {
2129 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
2130 IW_IOCTL(SIOCGIWNAME) = rndis_iw_get_name,
2131 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
2132 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
2133 IW_IOCTL(SIOCSIWMODE) = rndis_iw_set_mode,
2134 IW_IOCTL(SIOCGIWMODE) = rndis_iw_get_mode,
2135 IW_IOCTL(SIOCGIWRANGE) = rndis_iw_get_range,
2136 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
2137 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
2138 IW_IOCTL(SIOCSIWSCAN) = rndis_iw_set_scan,
2139 IW_IOCTL(SIOCGIWSCAN) = rndis_iw_get_scan,
2140 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
2141 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
2142 IW_IOCTL(SIOCSIWNICKN) = rndis_iw_set_nick,
2143 IW_IOCTL(SIOCGIWNICKN) = rndis_iw_get_nick,
2144 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
2145 IW_IOCTL(SIOCSIWRTS) = rndis_iw_set_rts,
2146 IW_IOCTL(SIOCGIWRTS) = rndis_iw_get_rts,
2147 IW_IOCTL(SIOCSIWFRAG) = rndis_iw_set_frag,
2148 IW_IOCTL(SIOCGIWFRAG) = rndis_iw_get_frag,
2149 IW_IOCTL(SIOCSIWTXPOW) = rndis_iw_set_txpower,
2150 IW_IOCTL(SIOCGIWTXPOW) = rndis_iw_get_txpower,
2151 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2152 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2153 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2154 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2155 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2156 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2157 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2158 };
2159
2160 static const iw_handler rndis_wext_private_handler[] = {
2161 };
2162
2163 static const struct iw_priv_args rndis_wext_private_args[] = {
2164 };
2165
2166
2167 static const struct iw_handler_def rndis_iw_handlers = {
2168 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2169 .num_private = ARRAY_SIZE(rndis_wext_private_handler),
2170 .num_private_args = ARRAY_SIZE(rndis_wext_private_args),
2171 .standard = (iw_handler *)rndis_iw_handler,
2172 .private = (iw_handler *)rndis_wext_private_handler,
2173 .private_args = (struct iw_priv_args *)rndis_wext_private_args,
2174 .get_wireless_stats = rndis_get_wireless_stats,
2175 };
2176
2177
2178 static void rndis_wext_worker(struct work_struct *work)
2179 {
2180 struct rndis_wext_private *priv =
2181 container_of(work, struct rndis_wext_private, work);
2182 struct usbnet *usbdev = priv->usbdev;
2183 union iwreq_data evt;
2184 unsigned char bssid[ETH_ALEN];
2185 int ret;
2186
2187 if (test_and_clear_bit(WORK_CONNECTION_EVENT, &priv->work_pending)) {
2188 ret = get_bssid(usbdev, bssid);
2189
2190 if (!ret) {
2191 evt.data.flags = 0;
2192 evt.data.length = 0;
2193 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2194 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2195 }
2196 }
2197
2198 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2199 set_multicast_list(usbdev);
2200 }
2201
2202 static void rndis_wext_set_multicast_list(struct net_device *dev)
2203 {
2204 struct usbnet *usbdev = dev->priv;
2205 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2206
2207 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2208 queue_work(priv->workqueue, &priv->work);
2209 }
2210
2211 static void rndis_wext_link_change(struct usbnet *dev, int state)
2212 {
2213 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
2214 union iwreq_data evt;
2215
2216 if (state) {
2217 /* queue work to avoid recursive calls into rndis_command */
2218 set_bit(WORK_CONNECTION_EVENT, &priv->work_pending);
2219 queue_work(priv->workqueue, &priv->work);
2220 } else {
2221 evt.data.flags = 0;
2222 evt.data.length = 0;
2223 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2224 wireless_send_event(dev->net, SIOCGIWAP, &evt, NULL);
2225 }
2226 }
2227
2228
2229 static int rndis_wext_get_caps(struct usbnet *dev)
2230 {
2231 struct {
2232 __le32 num_items;
2233 __le32 items[8];
2234 } networks_supported;
2235 int len, retval, i, n;
2236 __le32 tx_power;
2237 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
2238
2239 /* determine if supports setting txpower */
2240 len = sizeof(tx_power);
2241 retval = rndis_query_oid(dev, OID_802_11_TX_POWER_LEVEL, &tx_power,
2242 &len);
2243 if (retval == 0 && le32_to_cpu(tx_power) != 0xFF)
2244 priv->caps |= CAP_SUPPORT_TXPOWER;
2245
2246 /* determine supported modes */
2247 len = sizeof(networks_supported);
2248 retval = rndis_query_oid(dev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2249 &networks_supported, &len);
2250 if (retval >= 0) {
2251 n = le32_to_cpu(networks_supported.num_items);
2252 if (n > 8)
2253 n = 8;
2254 for (i = 0; i < n; i++) {
2255 switch (le32_to_cpu(networks_supported.items[i])) {
2256 case ndis_80211_type_freq_hop:
2257 case ndis_80211_type_direct_seq:
2258 priv->caps |= CAP_MODE_80211B;
2259 break;
2260 case ndis_80211_type_ofdm_a:
2261 priv->caps |= CAP_MODE_80211A;
2262 break;
2263 case ndis_80211_type_ofdm_g:
2264 priv->caps |= CAP_MODE_80211G;
2265 break;
2266 }
2267 }
2268 if (priv->caps & CAP_MODE_80211A)
2269 strcat(priv->name, "a");
2270 if (priv->caps & CAP_MODE_80211B)
2271 strcat(priv->name, "b");
2272 if (priv->caps & CAP_MODE_80211G)
2273 strcat(priv->name, "g");
2274 }
2275
2276 return retval;
2277 }
2278
2279
2280 #define STATS_UPDATE_JIFFIES (HZ)
2281 static void rndis_update_wireless_stats(struct work_struct *work)
2282 {
2283 struct rndis_wext_private *priv =
2284 container_of(work, struct rndis_wext_private, stats_work.work);
2285 struct usbnet *usbdev = priv->usbdev;
2286 struct iw_statistics iwstats;
2287 __le32 rssi, tmp;
2288 int len, ret, j;
2289 unsigned long flags;
2290 int update_jiffies = STATS_UPDATE_JIFFIES;
2291 void *buf;
2292
2293 spin_lock_irqsave(&priv->stats_lock, flags);
2294 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2295 spin_unlock_irqrestore(&priv->stats_lock, flags);
2296
2297 /* only update stats when connected */
2298 if (!is_associated(usbdev)) {
2299 iwstats.qual.qual = 0;
2300 iwstats.qual.level = 0;
2301 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2302 | IW_QUAL_LEVEL_UPDATED
2303 | IW_QUAL_NOISE_INVALID
2304 | IW_QUAL_QUAL_INVALID
2305 | IW_QUAL_LEVEL_INVALID;
2306 goto end;
2307 }
2308
2309 len = sizeof(rssi);
2310 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2311
2312 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2313 le32_to_cpu(rssi));
2314 if (ret == 0) {
2315 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2316 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2317 iwstats.qual.level = le32_to_cpu(rssi);
2318 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2319 | IW_QUAL_LEVEL_UPDATED
2320 | IW_QUAL_NOISE_INVALID;
2321 }
2322
2323 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2324
2325 len = sizeof(tmp);
2326 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2327 if (ret == 0)
2328 iwstats.discard.misc += le32_to_cpu(tmp);
2329
2330 len = sizeof(tmp);
2331 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2332 if (ret == 0)
2333 iwstats.discard.misc += le32_to_cpu(tmp);
2334
2335 len = sizeof(tmp);
2336 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2337 if (ret == 0)
2338 iwstats.discard.misc += le32_to_cpu(tmp);
2339
2340 /* Workaround transfer stalls on poor quality links.
2341 * TODO: find right way to fix these stalls (as stalls do not happen
2342 * with ndiswrapper/windows driver). */
2343 if (iwstats.qual.qual <= 25) {
2344 /* Decrease stats worker interval to catch stalls.
2345 * faster. Faster than 400-500ms causes packet loss,
2346 * Slower doesn't catch stalls fast enough.
2347 */
2348 j = msecs_to_jiffies(priv->param_workaround_interval);
2349 if (j > STATS_UPDATE_JIFFIES)
2350 j = STATS_UPDATE_JIFFIES;
2351 else if (j <= 0)
2352 j = 1;
2353 update_jiffies = j;
2354
2355 /* Send scan OID. Use of both OIDs is required to get device
2356 * working.
2357 */
2358 tmp = ccpu2(1);
2359 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2360 sizeof(tmp));
2361
2362 len = CONTROL_BUFFER_SIZE;
2363 buf = kmalloc(len, GFP_KERNEL);
2364 if (!buf)
2365 goto end;
2366
2367 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2368 kfree(buf);
2369 }
2370 end:
2371 spin_lock_irqsave(&priv->stats_lock, flags);
2372 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2373 spin_unlock_irqrestore(&priv->stats_lock, flags);
2374
2375 if (update_jiffies >= HZ)
2376 update_jiffies = round_jiffies_relative(update_jiffies);
2377 else {
2378 j = round_jiffies_relative(update_jiffies);
2379 if (abs(j - update_jiffies) <= 10)
2380 update_jiffies = j;
2381 }
2382
2383 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2384 }
2385
2386
2387 static int bcm4320_early_init(struct usbnet *dev)
2388 {
2389 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
2390 char buf[8];
2391
2392 /* Early initialization settings, setting these won't have effect
2393 * if called after generic_rndis_bind().
2394 */
2395
2396 priv->param_country[0] = modparam_country[0];
2397 priv->param_country[1] = modparam_country[1];
2398 priv->param_country[2] = 0;
2399 priv->param_frameburst = modparam_frameburst;
2400 priv->param_afterburner = modparam_afterburner;
2401 priv->param_power_save = modparam_power_save;
2402 priv->param_power_output = modparam_power_output;
2403 priv->param_roamtrigger = modparam_roamtrigger;
2404 priv->param_roamdelta = modparam_roamdelta;
2405
2406 priv->param_country[0] = toupper(priv->param_country[0]);
2407 priv->param_country[1] = toupper(priv->param_country[1]);
2408 /* doesn't support EU as country code, use FI instead */
2409 if (!strcmp(priv->param_country, "EU"))
2410 strcpy(priv->param_country, "FI");
2411
2412 if (priv->param_power_save < 0)
2413 priv->param_power_save = 0;
2414 else if (priv->param_power_save > 2)
2415 priv->param_power_save = 2;
2416
2417 if (priv->param_roamtrigger < -80)
2418 priv->param_roamtrigger = -80;
2419 else if (priv->param_roamtrigger > -60)
2420 priv->param_roamtrigger = -60;
2421
2422 if (priv->param_roamdelta < 0)
2423 priv->param_roamdelta = 0;
2424 else if (priv->param_roamdelta > 2)
2425 priv->param_roamdelta = 2;
2426
2427 if (modparam_workaround_interval < 0)
2428 priv->param_workaround_interval = 500;
2429 else
2430 priv->param_workaround_interval = modparam_workaround_interval;
2431
2432 rndis_set_config_parameter_str(dev, "Country", priv->param_country);
2433 rndis_set_config_parameter_str(dev, "FrameBursting",
2434 priv->param_frameburst ? "1" : "0");
2435 rndis_set_config_parameter_str(dev, "Afterburner",
2436 priv->param_afterburner ? "1" : "0");
2437 sprintf(buf, "%d", priv->param_power_save);
2438 rndis_set_config_parameter_str(dev, "PowerSaveMode", buf);
2439 sprintf(buf, "%d", priv->param_power_output);
2440 rndis_set_config_parameter_str(dev, "PwrOut", buf);
2441 sprintf(buf, "%d", priv->param_roamtrigger);
2442 rndis_set_config_parameter_str(dev, "RoamTrigger", buf);
2443 sprintf(buf, "%d", priv->param_roamdelta);
2444 rndis_set_config_parameter_str(dev, "RoamDelta", buf);
2445
2446 return 0;
2447 }
2448
2449
2450 static int rndis_wext_bind(struct usbnet *dev, struct usb_interface *intf)
2451 {
2452 struct net_device *net = dev->net;
2453 struct rndis_wext_private *priv;
2454 int retval, len;
2455 __le32 tmp;
2456
2457 /* allocate rndis private data */
2458 priv = kmalloc(sizeof(struct rndis_wext_private), GFP_KERNEL);
2459 if (!priv)
2460 return -ENOMEM;
2461
2462 /* These have to be initialized before calling generic_rndis_bind().
2463 * Otherwise we'll be in big trouble in rndis_wext_early_init().
2464 */
2465 dev->driver_priv = priv;
2466 memset(priv, 0, sizeof(*priv));
2467 memset(priv->name, 0, sizeof(priv->name));
2468 strcpy(priv->name, "IEEE802.11");
2469 net->wireless_handlers = &rndis_iw_handlers;
2470 priv->usbdev = dev;
2471
2472 mutex_init(&priv->command_lock);
2473 spin_lock_init(&priv->stats_lock);
2474
2475 /* try bind rndis_host */
2476 retval = generic_rndis_bind(dev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2477 if (retval < 0)
2478 goto fail;
2479
2480 /* generic_rndis_bind set packet filter to multicast_all+
2481 * promisc mode which doesn't work well for our devices (device
2482 * picks up rssi to closest station instead of to access point).
2483 *
2484 * rndis_host wants to avoid all OID as much as possible
2485 * so do promisc/multicast handling in rndis_wext.
2486 */
2487 dev->net->set_multicast_list = rndis_wext_set_multicast_list;
2488 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2489 retval = rndis_set_oid(dev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2490 sizeof(tmp));
2491
2492 len = sizeof(tmp);
2493 retval = rndis_query_oid(dev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp, &len);
2494 priv->multicast_size = le32_to_cpu(tmp);
2495 if (retval < 0 || priv->multicast_size < 0)
2496 priv->multicast_size = 0;
2497 if (priv->multicast_size > 0)
2498 dev->net->flags |= IFF_MULTICAST;
2499 else
2500 dev->net->flags &= ~IFF_MULTICAST;
2501
2502 priv->iwstats.qual.qual = 0;
2503 priv->iwstats.qual.level = 0;
2504 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2505 | IW_QUAL_LEVEL_UPDATED
2506 | IW_QUAL_NOISE_INVALID
2507 | IW_QUAL_QUAL_INVALID
2508 | IW_QUAL_LEVEL_INVALID;
2509
2510 rndis_wext_get_caps(dev);
2511 set_default_iw_params(dev);
2512
2513 /* turn radio on */
2514 priv->radio_on = 1;
2515 disassociate(dev, 1);
2516
2517 /* because rndis_command() sleeps we need to use workqueue */
2518 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2519 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2520 queue_delayed_work(priv->workqueue, &priv->stats_work,
2521 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2522 INIT_WORK(&priv->work, rndis_wext_worker);
2523
2524 return 0;
2525
2526 fail:
2527 kfree(priv);
2528 return retval;
2529 }
2530
2531
2532 static void rndis_wext_unbind(struct usbnet *dev, struct usb_interface *intf)
2533 {
2534 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
2535
2536 /* turn radio off */
2537 disassociate(dev, 0);
2538
2539 cancel_delayed_work_sync(&priv->stats_work);
2540 cancel_work_sync(&priv->work);
2541 flush_workqueue(priv->workqueue);
2542 destroy_workqueue(priv->workqueue);
2543
2544 if (priv && priv->wpa_ie_len)
2545 kfree(priv->wpa_ie);
2546 kfree(priv);
2547
2548 rndis_unbind(dev, intf);
2549 }
2550
2551
2552 static int rndis_wext_reset(struct usbnet *dev)
2553 {
2554 return deauthenticate(dev);
2555 }
2556
2557
2558 static const struct driver_info bcm4320b_info = {
2559 .description = "Wireless RNDIS device, BCM4320b based",
2560 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2561 .bind = rndis_wext_bind,
2562 .unbind = rndis_wext_unbind,
2563 .status = rndis_status,
2564 .rx_fixup = rndis_rx_fixup,
2565 .tx_fixup = rndis_tx_fixup,
2566 .reset = rndis_wext_reset,
2567 .early_init = bcm4320_early_init,
2568 .link_change = rndis_wext_link_change,
2569 };
2570
2571 static const struct driver_info bcm4320a_info = {
2572 .description = "Wireless RNDIS device, BCM4320a based",
2573 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2574 .bind = rndis_wext_bind,
2575 .unbind = rndis_wext_unbind,
2576 .status = rndis_status,
2577 .rx_fixup = rndis_rx_fixup,
2578 .tx_fixup = rndis_tx_fixup,
2579 .reset = rndis_wext_reset,
2580 .early_init = bcm4320_early_init,
2581 .link_change = rndis_wext_link_change,
2582 };
2583
2584 static const struct driver_info rndis_wext_info = {
2585 .description = "Wireless RNDIS device",
2586 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2587 .bind = rndis_wext_bind,
2588 .unbind = rndis_wext_unbind,
2589 .status = rndis_status,
2590 .rx_fixup = rndis_rx_fixup,
2591 .tx_fixup = rndis_tx_fixup,
2592 .reset = rndis_wext_reset,
2593 .early_init = bcm4320_early_init,
2594 .link_change = rndis_wext_link_change,
2595 };
2596
2597 /*-------------------------------------------------------------------------*/
2598
2599 static const struct usb_device_id products [] = {
2600 #define RNDIS_MASTER_INTERFACE \
2601 .bInterfaceClass = USB_CLASS_COMM, \
2602 .bInterfaceSubClass = 2 /* ACM */, \
2603 .bInterfaceProtocol = 0x0ff
2604
2605 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2606 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2607 */
2608 {
2609 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2610 | USB_DEVICE_ID_MATCH_DEVICE,
2611 .idVendor = 0x0411,
2612 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2613 RNDIS_MASTER_INTERFACE,
2614 .driver_info = (unsigned long) &bcm4320b_info,
2615 }, {
2616 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2617 | USB_DEVICE_ID_MATCH_DEVICE,
2618 .idVendor = 0x0baf,
2619 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2620 RNDIS_MASTER_INTERFACE,
2621 .driver_info = (unsigned long) &bcm4320b_info,
2622 }, {
2623 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2624 | USB_DEVICE_ID_MATCH_DEVICE,
2625 .idVendor = 0x050d,
2626 .idProduct = 0x011b, /* Belkin F5D7051 */
2627 RNDIS_MASTER_INTERFACE,
2628 .driver_info = (unsigned long) &bcm4320b_info,
2629 }, {
2630 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2631 | USB_DEVICE_ID_MATCH_DEVICE,
2632 .idVendor = 0x1799, /* Belkin has two vendor ids */
2633 .idProduct = 0x011b, /* Belkin F5D7051 */
2634 RNDIS_MASTER_INTERFACE,
2635 .driver_info = (unsigned long) &bcm4320b_info,
2636 }, {
2637 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2638 | USB_DEVICE_ID_MATCH_DEVICE,
2639 .idVendor = 0x13b1,
2640 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2641 RNDIS_MASTER_INTERFACE,
2642 .driver_info = (unsigned long) &bcm4320b_info,
2643 }, {
2644 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2645 | USB_DEVICE_ID_MATCH_DEVICE,
2646 .idVendor = 0x13b1,
2647 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2648 RNDIS_MASTER_INTERFACE,
2649 .driver_info = (unsigned long) &bcm4320b_info,
2650 }, {
2651 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2652 | USB_DEVICE_ID_MATCH_DEVICE,
2653 .idVendor = 0x0b05,
2654 .idProduct = 0x1717, /* Asus WL169gE */
2655 RNDIS_MASTER_INTERFACE,
2656 .driver_info = (unsigned long) &bcm4320b_info,
2657 }, {
2658 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2659 | USB_DEVICE_ID_MATCH_DEVICE,
2660 .idVendor = 0x0a5c,
2661 .idProduct = 0xd11b, /* Eminent EM4045 */
2662 RNDIS_MASTER_INTERFACE,
2663 .driver_info = (unsigned long) &bcm4320b_info,
2664 }, {
2665 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2666 | USB_DEVICE_ID_MATCH_DEVICE,
2667 .idVendor = 0x1690,
2668 .idProduct = 0x0715, /* BT Voyager 1055 */
2669 RNDIS_MASTER_INTERFACE,
2670 .driver_info = (unsigned long) &bcm4320b_info,
2671 },
2672 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2673 * parameters available, hardware probably contain older firmware version with
2674 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2675 */
2676 {
2677 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2678 | USB_DEVICE_ID_MATCH_DEVICE,
2679 .idVendor = 0x13b1,
2680 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2681 RNDIS_MASTER_INTERFACE,
2682 .driver_info = (unsigned long) &bcm4320a_info,
2683 }, {
2684 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2685 | USB_DEVICE_ID_MATCH_DEVICE,
2686 .idVendor = 0x0baf,
2687 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2688 RNDIS_MASTER_INTERFACE,
2689 .driver_info = (unsigned long) &bcm4320a_info,
2690 }, {
2691 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2692 | USB_DEVICE_ID_MATCH_DEVICE,
2693 .idVendor = 0x0411,
2694 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2695 RNDIS_MASTER_INTERFACE,
2696 .driver_info = (unsigned long) &bcm4320a_info,
2697 },
2698 /* Generic Wireless RNDIS devices that we don't have exact
2699 * idVendor/idProduct/chip yet.
2700 */
2701 {
2702 /* RNDIS is MSFT's un-official variant of CDC ACM */
2703 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2704 .driver_info = (unsigned long) &rndis_wext_info,
2705 }, {
2706 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2707 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2708 .driver_info = (unsigned long) &rndis_wext_info,
2709 },
2710 { }, // END
2711 };
2712 MODULE_DEVICE_TABLE(usb, products);
2713
2714 static struct usb_driver rndis_wlan_driver = {
2715 .name = "rndis_wlan",
2716 .id_table = products,
2717 .probe = usbnet_probe,
2718 .disconnect = usbnet_disconnect,
2719 .suspend = usbnet_suspend,
2720 .resume = usbnet_resume,
2721 };
2722
2723 static int __init rndis_wlan_init(void)
2724 {
2725 return usb_register(&rndis_wlan_driver);
2726 }
2727 module_init(rndis_wlan_init);
2728
2729 static void __exit rndis_wlan_exit(void)
2730 {
2731 usb_deregister(&rndis_wlan_driver);
2732 }
2733 module_exit(rndis_wlan_exit);
2734
2735 MODULE_AUTHOR("Bjorge Dijkstra");
2736 MODULE_AUTHOR("Jussi Kivilinna");
2737 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2738 MODULE_LICENSE("GPL");
2739
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