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ath5k: fix buffer overrun in rate debug code
[linux-2.6/mini2440.git] / drivers / net / wireless / rndis_wlan.c
blobed93ac41297f036caf6c7cff6d7ad797008007d4
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/ieee80211.h>
41 #include <linux/if_arp.h>
42 #include <linux/ctype.h>
43 #include <linux/spinlock.h>
44 #include <net/iw_handler.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_ASSOCIATION_INFORMATION ccpu2(0x0d01011f)
120 #define OID_802_11_PMKID ccpu2(0x0d010123)
121 #define OID_802_11_NETWORK_TYPES_SUPPORTED ccpu2(0x0d010203)
122 #define OID_802_11_NETWORK_TYPE_IN_USE ccpu2(0x0d010204)
123 #define OID_802_11_TX_POWER_LEVEL ccpu2(0x0d010205)
124 #define OID_802_11_RSSI ccpu2(0x0d010206)
125 #define OID_802_11_RSSI_TRIGGER ccpu2(0x0d010207)
126 #define OID_802_11_FRAGMENTATION_THRESHOLD ccpu2(0x0d010209)
127 #define OID_802_11_RTS_THRESHOLD ccpu2(0x0d01020a)
128 #define OID_802_11_SUPPORTED_RATES ccpu2(0x0d01020e)
129 #define OID_802_11_CONFIGURATION ccpu2(0x0d010211)
130 #define OID_802_11_BSSID_LIST ccpu2(0x0d010217)
131
132
133 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
134 #define WL_NOISE -96 /* typical noise level in dBm */
135 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
136
137
138 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
139 * based on wireless rndis) has default txpower of 13dBm.
140 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
141 * 13dBm == 19.9mW
142 */
143 #define BCM4320_DEFAULT_TXPOWER 20
144
145
146 /* codes for "status" field of completion messages */
147 #define RNDIS_STATUS_ADAPTER_NOT_READY ccpu2(0xc0010011)
148 #define RNDIS_STATUS_ADAPTER_NOT_OPEN ccpu2(0xc0010012)
149
150
151 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
152 * slightly modified for datatype endianess, etc
153 */
154 #define NDIS_802_11_LENGTH_SSID 32
155 #define NDIS_802_11_LENGTH_RATES 8
156 #define NDIS_802_11_LENGTH_RATES_EX 16
157
158 enum ndis_80211_net_type {
159 ndis_80211_type_freq_hop,
160 ndis_80211_type_direct_seq,
161 ndis_80211_type_ofdm_a,
162 ndis_80211_type_ofdm_g
163 };
164
165 enum ndis_80211_net_infra {
166 ndis_80211_infra_adhoc,
167 ndis_80211_infra_infra,
168 ndis_80211_infra_auto_unknown
169 };
170
171 enum ndis_80211_auth_mode {
172 ndis_80211_auth_open,
173 ndis_80211_auth_shared,
174 ndis_80211_auth_auto_switch,
175 ndis_80211_auth_wpa,
176 ndis_80211_auth_wpa_psk,
177 ndis_80211_auth_wpa_none,
178 ndis_80211_auth_wpa2,
179 ndis_80211_auth_wpa2_psk
180 };
181
182 enum ndis_80211_encr_status {
183 ndis_80211_encr_wep_enabled,
184 ndis_80211_encr_disabled,
185 ndis_80211_encr_wep_key_absent,
186 ndis_80211_encr_not_supported,
187 ndis_80211_encr_tkip_enabled,
188 ndis_80211_encr_tkip_key_absent,
189 ndis_80211_encr_ccmp_enabled,
190 ndis_80211_encr_ccmp_key_absent
191 };
192
193 enum ndis_80211_priv_filter {
194 ndis_80211_priv_accept_all,
195 ndis_80211_priv_8021x_wep
196 };
197
198 struct ndis_80211_ssid {
199 __le32 length;
200 u8 essid[NDIS_802_11_LENGTH_SSID];
201 } __attribute__((packed));
202
203 struct ndis_80211_conf_freq_hop {
204 __le32 length;
205 __le32 hop_pattern;
206 __le32 hop_set;
207 __le32 dwell_time;
208 } __attribute__((packed));
209
210 struct ndis_80211_conf {
211 __le32 length;
212 __le32 beacon_period;
213 __le32 atim_window;
214 __le32 ds_config;
215 struct ndis_80211_conf_freq_hop fh_config;
216 } __attribute__((packed));
217
218 struct ndis_80211_bssid_ex {
219 __le32 length;
220 u8 mac[6];
221 u8 padding[2];
222 struct ndis_80211_ssid ssid;
223 __le32 privacy;
224 __le32 rssi;
225 __le32 net_type;
226 struct ndis_80211_conf config;
227 __le32 net_infra;
228 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
229 __le32 ie_length;
230 u8 ies[0];
231 } __attribute__((packed));
232
233 struct ndis_80211_bssid_list_ex {
234 __le32 num_items;
235 struct ndis_80211_bssid_ex bssid[0];
236 } __attribute__((packed));
237
238 struct ndis_80211_fixed_ies {
239 u8 timestamp[8];
240 __le16 beacon_interval;
241 __le16 capabilities;
242 } __attribute__((packed));
243
244 struct ndis_80211_wep_key {
245 __le32 size;
246 __le32 index;
247 __le32 length;
248 u8 material[32];
249 } __attribute__((packed));
250
251 struct ndis_80211_key {
252 __le32 size;
253 __le32 index;
254 __le32 length;
255 u8 bssid[6];
256 u8 padding[6];
257 u8 rsc[8];
258 u8 material[32];
259 } __attribute__((packed));
260
261 struct ndis_80211_remove_key {
262 __le32 size;
263 __le32 index;
264 u8 bssid[6];
265 } __attribute__((packed));
266
267 struct ndis_config_param {
268 __le32 name_offs;
269 __le32 name_length;
270 __le32 type;
271 __le32 value_offs;
272 __le32 value_length;
273 } __attribute__((packed));
274
275 struct ndis_80211_assoc_info {
276 __le32 length;
277 __le16 req_ies;
278 struct req_ie {
279 __le16 capa;
280 __le16 listen_interval;
281 u8 cur_ap_address[6];
282 } req_ie;
283 __le32 req_ie_length;
284 __le32 offset_req_ies;
285 __le16 resp_ies;
286 struct resp_ie {
287 __le16 capa;
288 __le16 status_code;
289 __le16 assoc_id;
290 } resp_ie;
291 __le32 resp_ie_length;
292 __le32 offset_resp_ies;
293 } __attribute__((packed));
294
295 /* these have to match what is in wpa_supplicant */
296 enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
297 enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
298 CIPHER_WEP104 };
299 enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE,
300 KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE };
301
302 /*
303 * private data
304 */
305 #define NET_TYPE_11FB 0
306
307 #define CAP_MODE_80211A 1
308 #define CAP_MODE_80211B 2
309 #define CAP_MODE_80211G 4
310 #define CAP_MODE_MASK 7
311 #define CAP_SUPPORT_TXPOWER 8
312
313 #define WORK_LINK_UP (1<<0)
314 #define WORK_LINK_DOWN (1<<1)
315 #define WORK_SET_MULTICAST_LIST (1<<2)
316
317 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
318
319 /* RNDIS device private data */
320 struct rndis_wext_private {
321 char name[32];
322
323 struct usbnet *usbdev;
324
325 struct workqueue_struct *workqueue;
326 struct delayed_work stats_work;
327 struct work_struct work;
328 struct mutex command_lock;
329 spinlock_t stats_lock;
330 unsigned long work_pending;
331
332 struct iw_statistics iwstats;
333 struct iw_statistics privstats;
334
335 int nick_len;
336 char nick[32];
337
338 int caps;
339 int multicast_size;
340
341 /* module parameters */
342 char param_country[4];
343 int param_frameburst;
344 int param_afterburner;
345 int param_power_save;
346 int param_power_output;
347 int param_roamtrigger;
348 int param_roamdelta;
349 u32 param_workaround_interval;
350
351 /* hardware state */
352 int radio_on;
353 int infra_mode;
354 struct ndis_80211_ssid essid;
355
356 /* encryption stuff */
357 int encr_tx_key_index;
358 char encr_keys[4][32];
359 int encr_key_len[4];
360 int wpa_version;
361 int wpa_keymgmt;
362 int wpa_authalg;
363 int wpa_ie_len;
364 u8 *wpa_ie;
365 int wpa_cipher_pair;
366 int wpa_cipher_group;
367
368 u8 command_buffer[COMMAND_BUFFER_SIZE];
369 };
370
371
372 static const int freq_chan[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
373 2447, 2452, 2457, 2462, 2467, 2472, 2484 };
374
375 static const int rates_80211g[8] = { 6, 9, 12, 18, 24, 36, 48, 54 };
376
377 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
378
379 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
380 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
381 0xff, 0xff, 0xff };
382
383
384 static struct rndis_wext_private *get_rndis_wext_priv(struct usbnet *dev)
385 {
386 return (struct rndis_wext_private *)dev->driver_priv;
387 }
388
389
390 static u32 get_bcm4320_power(struct rndis_wext_private *priv)
391 {
392 return BCM4320_DEFAULT_TXPOWER *
393 bcm4320_power_output[priv->param_power_output] / 100;
394 }
395
396
397 /* translate error code */
398 static int rndis_error_status(__le32 rndis_status)
399 {
400 int ret = -EINVAL;
401 switch (rndis_status) {
402 case RNDIS_STATUS_SUCCESS:
403 ret = 0;
404 break;
405 case RNDIS_STATUS_FAILURE:
406 case RNDIS_STATUS_INVALID_DATA:
407 ret = -EINVAL;
408 break;
409 case RNDIS_STATUS_NOT_SUPPORTED:
410 ret = -EOPNOTSUPP;
411 break;
412 case RNDIS_STATUS_ADAPTER_NOT_READY:
413 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
414 ret = -EBUSY;
415 break;
416 }
417 return ret;
418 }
419
420
421 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
422 {
423 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
424 union {
425 void *buf;
426 struct rndis_msg_hdr *header;
427 struct rndis_query *get;
428 struct rndis_query_c *get_c;
429 } u;
430 int ret, buflen;
431
432 buflen = *len + sizeof(*u.get);
433 if (buflen < CONTROL_BUFFER_SIZE)
434 buflen = CONTROL_BUFFER_SIZE;
435
436 if (buflen > COMMAND_BUFFER_SIZE) {
437 u.buf = kmalloc(buflen, GFP_KERNEL);
438 if (!u.buf)
439 return -ENOMEM;
440 } else {
441 u.buf = priv->command_buffer;
442 }
443
444 mutex_lock(&priv->command_lock);
445
446 memset(u.get, 0, sizeof *u.get);
447 u.get->msg_type = RNDIS_MSG_QUERY;
448 u.get->msg_len = ccpu2(sizeof *u.get);
449 u.get->oid = oid;
450
451 ret = rndis_command(dev, u.header, buflen);
452 if (ret == 0) {
453 ret = le32_to_cpu(u.get_c->len);
454 *len = (*len > ret) ? ret : *len;
455 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
456 ret = rndis_error_status(u.get_c->status);
457 }
458
459 mutex_unlock(&priv->command_lock);
460
461 if (u.buf != priv->command_buffer)
462 kfree(u.buf);
463 return ret;
464 }
465
466
467 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
468 {
469 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
470 union {
471 void *buf;
472 struct rndis_msg_hdr *header;
473 struct rndis_set *set;
474 struct rndis_set_c *set_c;
475 } u;
476 int ret, buflen;
477
478 buflen = len + sizeof(*u.set);
479 if (buflen < CONTROL_BUFFER_SIZE)
480 buflen = CONTROL_BUFFER_SIZE;
481
482 if (buflen > COMMAND_BUFFER_SIZE) {
483 u.buf = kmalloc(buflen, GFP_KERNEL);
484 if (!u.buf)
485 return -ENOMEM;
486 } else {
487 u.buf = priv->command_buffer;
488 }
489
490 mutex_lock(&priv->command_lock);
491
492 memset(u.set, 0, sizeof *u.set);
493 u.set->msg_type = RNDIS_MSG_SET;
494 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
495 u.set->oid = oid;
496 u.set->len = cpu_to_le32(len);
497 u.set->offset = ccpu2(sizeof(*u.set) - 8);
498 u.set->handle = ccpu2(0);
499 memcpy(u.buf + sizeof(*u.set), data, len);
500
501 ret = rndis_command(dev, u.header, buflen);
502 if (ret == 0)
503 ret = rndis_error_status(u.set_c->status);
504
505 mutex_unlock(&priv->command_lock);
506
507 if (u.buf != priv->command_buffer)
508 kfree(u.buf);
509 return ret;
510 }
511
512
513 /*
514 * Specs say that we can only set config parameters only soon after device
515 * initialization.
516 * value_type: 0 = u32, 2 = unicode string
517 */
518 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
519 int value_type, void *value)
520 {
521 struct ndis_config_param *infobuf;
522 int value_len, info_len, param_len, ret, i;
523 __le16 *unibuf;
524 __le32 *dst_value;
525
526 if (value_type == 0)
527 value_len = sizeof(__le32);
528 else if (value_type == 2)
529 value_len = strlen(value) * sizeof(__le16);
530 else
531 return -EINVAL;
532
533 param_len = strlen(param) * sizeof(__le16);
534 info_len = sizeof(*infobuf) + param_len + value_len;
535
536 #ifdef DEBUG
537 info_len += 12;
538 #endif
539 infobuf = kmalloc(info_len, GFP_KERNEL);
540 if (!infobuf)
541 return -ENOMEM;
542
543 #ifdef DEBUG
544 info_len -= 12;
545 /* extra 12 bytes are for padding (debug output) */
546 memset(infobuf, 0xCC, info_len + 12);
547 #endif
548
549 if (value_type == 2)
550 devdbg(dev, "setting config parameter: %s, value: %s",
551 param, (u8 *)value);
552 else
553 devdbg(dev, "setting config parameter: %s, value: %d",
554 param, *(u32 *)value);
555
556 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
557 infobuf->name_length = cpu_to_le32(param_len);
558 infobuf->type = cpu_to_le32(value_type);
559 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
560 infobuf->value_length = cpu_to_le32(value_len);
561
562 /* simple string to unicode string conversion */
563 unibuf = (void *)infobuf + sizeof(*infobuf);
564 for (i = 0; i < param_len / sizeof(__le16); i++)
565 unibuf[i] = cpu_to_le16(param[i]);
566
567 if (value_type == 2) {
568 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
569 for (i = 0; i < value_len / sizeof(__le16); i++)
570 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
571 } else {
572 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
573 *dst_value = cpu_to_le32(*(u32 *)value);
574 }
575
576 #ifdef DEBUG
577 devdbg(dev, "info buffer (len: %d):", info_len);
578 for (i = 0; i < info_len; i += 12) {
579 u32 *tmp = (u32 *)((u8 *)infobuf + i);
580 devdbg(dev, "%08X:%08X:%08X",
581 cpu_to_be32(tmp[0]),
582 cpu_to_be32(tmp[1]),
583 cpu_to_be32(tmp[2]));
584 }
585 #endif
586
587 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
588 infobuf, info_len);
589 if (ret != 0)
590 devdbg(dev, "setting rndis config paramater failed, %d.", ret);
591
592 kfree(infobuf);
593 return ret;
594 }
595
596 static int rndis_set_config_parameter_str(struct usbnet *dev,
597 char *param, char *value)
598 {
599 return(rndis_set_config_parameter(dev, param, 2, value));
600 }
601
602 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
603 char *param, u32 value)
604 {
605 return(rndis_set_config_parameter(dev, param, 0, &value));
606 }*/
607
608
609 /*
610 * data conversion functions
611 */
612 static int level_to_qual(int level)
613 {
614 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
615 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
616 }
617
618
619 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
620 {
621 freq->e = 0;
622 freq->i = 0;
623 freq->flags = 0;
624
625 /* see comment in wireless.h above the "struct iw_freq"
626 * definition for an explanation of this if
627 * NOTE: 1000000 is due to the kHz
628 */
629 if (dsconfig > 1000000) {
630 freq->m = dsconfig / 10;
631 freq->e = 1;
632 } else
633 freq->m = dsconfig;
634
635 /* convert from kHz to Hz */
636 freq->e += 3;
637 }
638
639
640 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
641 {
642 if (freq->m < 1000 && freq->e == 0) {
643 if (freq->m >= 1 && freq->m <= ARRAY_SIZE(freq_chan))
644 *dsconfig = freq_chan[freq->m - 1] * 1000;
645 else
646 return -1;
647 } else {
648 int i;
649 *dsconfig = freq->m;
650 for (i = freq->e; i > 0; i--)
651 *dsconfig *= 10;
652 *dsconfig /= 1000;
653 }
654
655 return 0;
656 }
657
658
659 /*
660 * common functions
661 */
662 static int
663 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
664
665 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
666 {
667 int ret, len;
668
669 len = sizeof(*ssid);
670 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
671
672 if (ret != 0)
673 ssid->length = 0;
674
675 #ifdef DEBUG
676 {
677 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
678
679 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
680 tmp[le32_to_cpu(ssid->length)] = 0;
681 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
682 }
683 #endif
684 return ret;
685 }
686
687
688 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
689 {
690 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
691 int ret;
692
693 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
694 if (ret == 0) {
695 memcpy(&priv->essid, ssid, sizeof(priv->essid));
696 priv->radio_on = 1;
697 devdbg(usbdev, "set_essid: radio_on = 1");
698 }
699
700 return ret;
701 }
702
703
704 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
705 {
706 int ret, len;
707
708 len = ETH_ALEN;
709 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
710
711 if (ret != 0)
712 memset(bssid, 0, ETH_ALEN);
713
714 return ret;
715 }
716
717 static int get_association_info(struct usbnet *usbdev,
718 struct ndis_80211_assoc_info *info, int len)
719 {
720 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
721 info, &len);
722 }
723
724 static int is_associated(struct usbnet *usbdev)
725 {
726 u8 bssid[ETH_ALEN];
727 int ret;
728
729 ret = get_bssid(usbdev, bssid);
730
731 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
732 }
733
734
735 static int disassociate(struct usbnet *usbdev, int reset_ssid)
736 {
737 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
738 struct ndis_80211_ssid ssid;
739 int i, ret = 0;
740
741 if (priv->radio_on) {
742 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
743 if (ret == 0) {
744 priv->radio_on = 0;
745 devdbg(usbdev, "disassociate: radio_on = 0");
746
747 if (reset_ssid)
748 msleep(100);
749 }
750 }
751
752 /* disassociate causes radio to be turned off; if reset_ssid
753 * is given, set random ssid to enable radio */
754 if (reset_ssid) {
755 ssid.length = cpu_to_le32(sizeof(ssid.essid));
756 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
757 ssid.essid[0] = 0x1;
758 ssid.essid[1] = 0xff;
759 for (i = 2; i < sizeof(ssid.essid); i++)
760 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
761 ret = set_essid(usbdev, &ssid);
762 }
763 return ret;
764 }
765
766
767 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
768 {
769 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
770 __le32 tmp;
771 int auth_mode, ret;
772
773 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
774 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
775
776 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
777 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
778 auth_mode = ndis_80211_auth_wpa2;
779 else
780 auth_mode = ndis_80211_auth_wpa2_psk;
781 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
782 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
783 auth_mode = ndis_80211_auth_wpa;
784 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
785 auth_mode = ndis_80211_auth_wpa_psk;
786 else
787 auth_mode = ndis_80211_auth_wpa_none;
788 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
789 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
790 auth_mode = ndis_80211_auth_auto_switch;
791 else
792 auth_mode = ndis_80211_auth_shared;
793 } else
794 auth_mode = ndis_80211_auth_open;
795
796 tmp = cpu_to_le32(auth_mode);
797 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
798 sizeof(tmp));
799 if (ret != 0) {
800 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
801 return ret;
802 }
803
804 priv->wpa_version = wpa_version;
805 priv->wpa_authalg = authalg;
806 return 0;
807 }
808
809
810 static int set_priv_filter(struct usbnet *usbdev)
811 {
812 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
813 __le32 tmp;
814
815 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
816
817 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
818 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
819 tmp = cpu_to_le32(ndis_80211_priv_8021x_wep);
820 else
821 tmp = cpu_to_le32(ndis_80211_priv_accept_all);
822
823 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
824 sizeof(tmp));
825 }
826
827
828 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
829 {
830 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
831 __le32 tmp;
832 int encr_mode, ret;
833
834 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
835 pairwise,
836 groupwise);
837
838 if (pairwise & IW_AUTH_CIPHER_CCMP)
839 encr_mode = ndis_80211_encr_ccmp_enabled;
840 else if (pairwise & IW_AUTH_CIPHER_TKIP)
841 encr_mode = ndis_80211_encr_tkip_enabled;
842 else if (pairwise &
843 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
844 encr_mode = ndis_80211_encr_wep_enabled;
845 else if (groupwise & IW_AUTH_CIPHER_CCMP)
846 encr_mode = ndis_80211_encr_ccmp_enabled;
847 else if (groupwise & IW_AUTH_CIPHER_TKIP)
848 encr_mode = ndis_80211_encr_tkip_enabled;
849 else
850 encr_mode = ndis_80211_encr_disabled;
851
852 tmp = cpu_to_le32(encr_mode);
853 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
854 sizeof(tmp));
855 if (ret != 0) {
856 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
857 return ret;
858 }
859
860 priv->wpa_cipher_pair = pairwise;
861 priv->wpa_cipher_group = groupwise;
862 return 0;
863 }
864
865
866 static int set_assoc_params(struct usbnet *usbdev)
867 {
868 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
869
870 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
871 set_priv_filter(usbdev);
872 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
873
874 return 0;
875 }
876
877
878 static int set_infra_mode(struct usbnet *usbdev, int mode)
879 {
880 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
881 __le32 tmp;
882 int ret, i;
883
884 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
885
886 tmp = cpu_to_le32(mode);
887 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
888 sizeof(tmp));
889 if (ret != 0) {
890 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
891 return ret;
892 }
893
894 /* NDIS drivers clear keys when infrastructure mode is
895 * changed. But Linux tools assume otherwise. So set the
896 * keys */
897 if (priv->wpa_keymgmt == 0 ||
898 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
899 for (i = 0; i < 4; i++) {
900 if (priv->encr_key_len[i] > 0)
901 add_wep_key(usbdev, priv->encr_keys[i],
902 priv->encr_key_len[i], i);
903 }
904 }
905
906 priv->infra_mode = mode;
907 return 0;
908 }
909
910
911 static void set_default_iw_params(struct usbnet *usbdev)
912 {
913 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
914
915 priv->wpa_keymgmt = 0;
916 priv->wpa_version = 0;
917
918 set_infra_mode(usbdev, ndis_80211_infra_infra);
919 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
920 IW_AUTH_ALG_OPEN_SYSTEM);
921 set_priv_filter(usbdev);
922 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
923 }
924
925
926 static int deauthenticate(struct usbnet *usbdev)
927 {
928 int ret;
929
930 ret = disassociate(usbdev, 1);
931 set_default_iw_params(usbdev);
932 return ret;
933 }
934
935
936 /* index must be 0 - N, as per NDIS */
937 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
938 {
939 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
940 struct ndis_80211_wep_key ndis_key;
941 int ret;
942
943 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
944 return -EINVAL;
945
946 memset(&ndis_key, 0, sizeof(ndis_key));
947
948 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
949 ndis_key.length = cpu_to_le32(key_len);
950 ndis_key.index = cpu_to_le32(index);
951 memcpy(&ndis_key.material, key, key_len);
952
953 if (index == priv->encr_tx_key_index) {
954 ndis_key.index |= cpu_to_le32(1 << 31);
955 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
956 IW_AUTH_CIPHER_NONE);
957 if (ret)
958 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
959 ret);
960 }
961
962 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
963 sizeof(ndis_key));
964 if (ret != 0) {
965 devwarn(usbdev, "adding encryption key %d failed (%08X)",
966 index+1, ret);
967 return ret;
968 }
969
970 priv->encr_key_len[index] = key_len;
971 memcpy(&priv->encr_keys[index], key, key_len);
972
973 return 0;
974 }
975
976
977 /* remove_key is for both wep and wpa */
978 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
979 {
980 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
981 struct ndis_80211_remove_key remove_key;
982 __le32 keyindex;
983 int ret;
984
985 if (priv->encr_key_len[index] == 0)
986 return 0;
987
988 priv->encr_key_len[index] = 0;
989 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
990
991 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
992 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
993 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
994 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
995 remove_key.size = cpu_to_le32(sizeof(remove_key));
996 remove_key.index = cpu_to_le32(index);
997 if (bssid) {
998 /* pairwise key */
999 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
1000 remove_key.index |= cpu_to_le32(1 << 30);
1001 memcpy(remove_key.bssid, bssid,
1002 sizeof(remove_key.bssid));
1003 } else
1004 memset(remove_key.bssid, 0xff,
1005 sizeof(remove_key.bssid));
1006
1007 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1008 sizeof(remove_key));
1009 if (ret != 0)
1010 return ret;
1011 } else {
1012 keyindex = cpu_to_le32(index);
1013 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1014 sizeof(keyindex));
1015 if (ret != 0) {
1016 devwarn(usbdev,
1017 "removing encryption key %d failed (%08X)",
1018 index, ret);
1019 return ret;
1020 }
1021 }
1022
1023 /* if it is transmit key, disable encryption */
1024 if (index == priv->encr_tx_key_index)
1025 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1026
1027 return 0;
1028 }
1029
1030
1031 static void set_multicast_list(struct usbnet *usbdev)
1032 {
1033 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1034 struct dev_mc_list *mclist;
1035 __le32 filter;
1036 int ret, i, size;
1037 char *buf;
1038
1039 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1040
1041 if (usbdev->net->flags & IFF_PROMISC) {
1042 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1043 RNDIS_PACKET_TYPE_ALL_LOCAL;
1044 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1045 usbdev->net->mc_count > priv->multicast_size) {
1046 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1047 } else if (usbdev->net->mc_count > 0) {
1048 size = min(priv->multicast_size, usbdev->net->mc_count);
1049 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1050 if (!buf) {
1051 devwarn(usbdev,
1052 "couldn't alloc %d bytes of memory",
1053 size * ETH_ALEN);
1054 return;
1055 }
1056
1057 mclist = usbdev->net->mc_list;
1058 for (i = 0; i < size && mclist; mclist = mclist->next) {
1059 if (mclist->dmi_addrlen != ETH_ALEN)
1060 continue;
1061
1062 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1063 i++;
1064 }
1065
1066 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1067 i * ETH_ALEN);
1068 if (ret == 0 && i > 0)
1069 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1070 else
1071 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1072
1073 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1074 i, priv->multicast_size, ret);
1075
1076 kfree(buf);
1077 }
1078
1079 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1080 sizeof(filter));
1081 if (ret < 0) {
1082 devwarn(usbdev, "couldn't set packet filter: %08x",
1083 le32_to_cpu(filter));
1084 }
1085
1086 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1087 le32_to_cpu(filter), ret);
1088 }
1089
1090
1091 /*
1092 * wireless extension handlers
1093 */
1094
1095 static int rndis_iw_commit(struct net_device *dev,
1096 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1097 {
1098 /* dummy op */
1099 return 0;
1100 }
1101
1102
1103 static int rndis_iw_get_range(struct net_device *dev,
1104 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1105 {
1106 struct iw_range *range = (struct iw_range *)extra;
1107 struct usbnet *usbdev = netdev_priv(dev);
1108 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1109 int len, ret, i, j, num, has_80211g_rates;
1110 u8 rates[8];
1111 __le32 tx_power;
1112
1113 devdbg(usbdev, "SIOCGIWRANGE");
1114
1115 /* clear iw_range struct */
1116 memset(range, 0, sizeof(*range));
1117 wrqu->data.length = sizeof(*range);
1118
1119 range->txpower_capa = IW_TXPOW_MWATT;
1120 range->num_txpower = 1;
1121 if (priv->caps & CAP_SUPPORT_TXPOWER) {
1122 len = sizeof(tx_power);
1123 ret = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
1124 &tx_power, &len);
1125 if (ret == 0 && le32_to_cpu(tx_power) != 0xFF)
1126 range->txpower[0] = le32_to_cpu(tx_power);
1127 else
1128 range->txpower[0] = get_bcm4320_power(priv);
1129 } else
1130 range->txpower[0] = get_bcm4320_power(priv);
1131
1132 len = sizeof(rates);
1133 ret = rndis_query_oid(usbdev, OID_802_11_SUPPORTED_RATES, &rates,
1134 &len);
1135 has_80211g_rates = 0;
1136 if (ret == 0) {
1137 j = 0;
1138 for (i = 0; i < len; i++) {
1139 if (rates[i] == 0)
1140 break;
1141 range->bitrate[j] = (rates[i] & 0x7f) * 500000;
1142 /* check for non 802.11b rates */
1143 if (range->bitrate[j] == 6000000 ||
1144 range->bitrate[j] == 9000000 ||
1145 (range->bitrate[j] >= 12000000 &&
1146 range->bitrate[j] != 22000000))
1147 has_80211g_rates = 1;
1148 j++;
1149 }
1150 range->num_bitrates = j;
1151 } else
1152 range->num_bitrates = 0;
1153
1154 /* fill in 802.11g rates */
1155 if (has_80211g_rates) {
1156 num = range->num_bitrates;
1157 for (i = 0; i < ARRAY_SIZE(rates_80211g); i++) {
1158 for (j = 0; j < num; j++) {
1159 if (range->bitrate[j] ==
1160 rates_80211g[i] * 1000000)
1161 break;
1162 }
1163 if (j == num)
1164 range->bitrate[range->num_bitrates++] =
1165 rates_80211g[i] * 1000000;
1166 if (range->num_bitrates == IW_MAX_BITRATES)
1167 break;
1168 }
1169
1170 /* estimated max real througput in bps */
1171 range->throughput = 54 * 1000 * 1000 / 2;
1172
1173 /* ~35% more with afterburner */
1174 if (priv->param_afterburner)
1175 range->throughput = range->throughput / 100 * 135;
1176 } else {
1177 /* estimated max real througput in bps */
1178 range->throughput = 11 * 1000 * 1000 / 2;
1179 }
1180
1181 range->num_channels = ARRAY_SIZE(freq_chan);
1182
1183 for (i = 0; i < ARRAY_SIZE(freq_chan) && i < IW_MAX_FREQUENCIES; i++) {
1184 range->freq[i].i = i + 1;
1185 range->freq[i].m = freq_chan[i] * 100000;
1186 range->freq[i].e = 1;
1187 }
1188 range->num_frequency = i;
1189
1190 range->min_rts = 0;
1191 range->max_rts = 2347;
1192 range->min_frag = 256;
1193 range->max_frag = 2346;
1194
1195 range->max_qual.qual = 100;
1196 range->max_qual.level = 154;
1197 range->max_qual.updated = IW_QUAL_QUAL_UPDATED
1198 | IW_QUAL_LEVEL_UPDATED
1199 | IW_QUAL_NOISE_INVALID;
1200
1201 range->we_version_compiled = WIRELESS_EXT;
1202 range->we_version_source = WIRELESS_EXT;
1203
1204 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
1205 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
1206 return 0;
1207 }
1208
1209
1210 static int rndis_iw_get_name(struct net_device *dev,
1211 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1212 {
1213 struct usbnet *usbdev = netdev_priv(dev);
1214 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1215
1216 strcpy(wrqu->name, priv->name);
1217 return 0;
1218 }
1219
1220
1221 static int rndis_iw_set_essid(struct net_device *dev,
1222 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1223 {
1224 struct ndis_80211_ssid ssid;
1225 int length = wrqu->essid.length;
1226 struct usbnet *usbdev = netdev_priv(dev);
1227
1228 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1229 wrqu->essid.flags, wrqu->essid.length, essid);
1230
1231 if (length > NDIS_802_11_LENGTH_SSID)
1232 length = NDIS_802_11_LENGTH_SSID;
1233
1234 ssid.length = cpu_to_le32(length);
1235 if (length > 0)
1236 memcpy(ssid.essid, essid, length);
1237 else
1238 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1239
1240 set_assoc_params(usbdev);
1241
1242 if (!wrqu->essid.flags || length == 0)
1243 return disassociate(usbdev, 1);
1244 else
1245 return set_essid(usbdev, &ssid);
1246 }
1247
1248
1249 static int rndis_iw_get_essid(struct net_device *dev,
1250 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1251 {
1252 struct ndis_80211_ssid ssid;
1253 struct usbnet *usbdev = netdev_priv(dev);
1254 int ret;
1255
1256 ret = get_essid(usbdev, &ssid);
1257
1258 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1259 wrqu->essid.flags = 1;
1260 wrqu->essid.length = le32_to_cpu(ssid.length);
1261 memcpy(essid, ssid.essid, wrqu->essid.length);
1262 essid[wrqu->essid.length] = 0;
1263 } else {
1264 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1265 wrqu->essid.flags = 0;
1266 wrqu->essid.length = 0;
1267 }
1268 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1269 return ret;
1270 }
1271
1272
1273 static int rndis_iw_get_bssid(struct net_device *dev,
1274 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1275 {
1276 struct usbnet *usbdev = netdev_priv(dev);
1277 unsigned char bssid[ETH_ALEN];
1278 int ret;
1279
1280 ret = get_bssid(usbdev, bssid);
1281
1282 if (ret == 0)
1283 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1284 else
1285 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1286
1287 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1288 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1289
1290 return ret;
1291 }
1292
1293
1294 static int rndis_iw_set_bssid(struct net_device *dev,
1295 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1296 {
1297 struct usbnet *usbdev = netdev_priv(dev);
1298 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1299 int ret;
1300
1301 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1302
1303 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1304
1305 /* user apps may set ap's mac address, which is not required;
1306 * they may fail to work if this function fails, so return
1307 * success */
1308 if (ret)
1309 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1310
1311 return 0;
1312 }
1313
1314
1315 static int rndis_iw_set_auth(struct net_device *dev,
1316 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1317 {
1318 struct iw_param *p = &wrqu->param;
1319 struct usbnet *usbdev = netdev_priv(dev);
1320 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1321 int ret = -ENOTSUPP;
1322
1323 switch (p->flags & IW_AUTH_INDEX) {
1324 case IW_AUTH_WPA_VERSION:
1325 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1326 priv->wpa_version = p->value;
1327 ret = 0;
1328 break;
1329
1330 case IW_AUTH_CIPHER_PAIRWISE:
1331 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1332 priv->wpa_cipher_pair = p->value;
1333 ret = 0;
1334 break;
1335
1336 case IW_AUTH_CIPHER_GROUP:
1337 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1338 priv->wpa_cipher_group = p->value;
1339 ret = 0;
1340 break;
1341
1342 case IW_AUTH_KEY_MGMT:
1343 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1344 priv->wpa_keymgmt = p->value;
1345 ret = 0;
1346 break;
1347
1348 case IW_AUTH_TKIP_COUNTERMEASURES:
1349 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1350 p->value);
1351 ret = 0;
1352 break;
1353
1354 case IW_AUTH_DROP_UNENCRYPTED:
1355 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1356 ret = 0;
1357 break;
1358
1359 case IW_AUTH_80211_AUTH_ALG:
1360 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1361 priv->wpa_authalg = p->value;
1362 ret = 0;
1363 break;
1364
1365 case IW_AUTH_WPA_ENABLED:
1366 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1367 if (wrqu->param.value)
1368 deauthenticate(usbdev);
1369 ret = 0;
1370 break;
1371
1372 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1373 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1374 p->value);
1375 ret = 0;
1376 break;
1377
1378 case IW_AUTH_ROAMING_CONTROL:
1379 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1380 ret = 0;
1381 break;
1382
1383 case IW_AUTH_PRIVACY_INVOKED:
1384 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1385 wrqu->param.flags & IW_AUTH_INDEX);
1386 return -EOPNOTSUPP;
1387
1388 default:
1389 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1390 p->flags & IW_AUTH_INDEX, p->value);
1391 }
1392 return ret;
1393 }
1394
1395
1396 static int rndis_iw_get_auth(struct net_device *dev,
1397 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1398 {
1399 struct iw_param *p = &wrqu->param;
1400 struct usbnet *usbdev = netdev_priv(dev);
1401 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1402
1403 switch (p->flags & IW_AUTH_INDEX) {
1404 case IW_AUTH_WPA_VERSION:
1405 p->value = priv->wpa_version;
1406 break;
1407 case IW_AUTH_CIPHER_PAIRWISE:
1408 p->value = priv->wpa_cipher_pair;
1409 break;
1410 case IW_AUTH_CIPHER_GROUP:
1411 p->value = priv->wpa_cipher_group;
1412 break;
1413 case IW_AUTH_KEY_MGMT:
1414 p->value = priv->wpa_keymgmt;
1415 break;
1416 case IW_AUTH_80211_AUTH_ALG:
1417 p->value = priv->wpa_authalg;
1418 break;
1419 default:
1420 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1421 wrqu->param.flags & IW_AUTH_INDEX);
1422 return -EOPNOTSUPP;
1423 }
1424 return 0;
1425 }
1426
1427
1428 static int rndis_iw_get_mode(struct net_device *dev,
1429 struct iw_request_info *info,
1430 union iwreq_data *wrqu, char *extra)
1431 {
1432 struct usbnet *usbdev = netdev_priv(dev);
1433 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1434
1435 switch (priv->infra_mode) {
1436 case ndis_80211_infra_adhoc:
1437 wrqu->mode = IW_MODE_ADHOC;
1438 break;
1439 case ndis_80211_infra_infra:
1440 wrqu->mode = IW_MODE_INFRA;
1441 break;
1442 /*case ndis_80211_infra_auto_unknown:*/
1443 default:
1444 wrqu->mode = IW_MODE_AUTO;
1445 break;
1446 }
1447 devdbg(usbdev, "SIOCGIWMODE: %08x", wrqu->mode);
1448 return 0;
1449 }
1450
1451
1452 static int rndis_iw_set_mode(struct net_device *dev,
1453 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1454 {
1455 struct usbnet *usbdev = netdev_priv(dev);
1456 int mode;
1457
1458 devdbg(usbdev, "SIOCSIWMODE: %08x", wrqu->mode);
1459
1460 switch (wrqu->mode) {
1461 case IW_MODE_ADHOC:
1462 mode = ndis_80211_infra_adhoc;
1463 break;
1464 case IW_MODE_INFRA:
1465 mode = ndis_80211_infra_infra;
1466 break;
1467 /*case IW_MODE_AUTO:*/
1468 default:
1469 mode = ndis_80211_infra_auto_unknown;
1470 break;
1471 }
1472
1473 return set_infra_mode(usbdev, mode);
1474 }
1475
1476
1477 static int rndis_iw_set_encode(struct net_device *dev,
1478 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1479 {
1480 struct usbnet *usbdev = netdev_priv(dev);
1481 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1482 int ret, index, key_len;
1483 u8 *key;
1484
1485 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1486
1487 /* iwconfig gives index as 1 - N */
1488 if (index > 0)
1489 index--;
1490 else
1491 index = priv->encr_tx_key_index;
1492
1493 if (index < 0 || index >= 4) {
1494 devwarn(usbdev, "encryption index out of range (%u)", index);
1495 return -EINVAL;
1496 }
1497
1498 /* remove key if disabled */
1499 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1500 if (remove_key(usbdev, index, NULL))
1501 return -EINVAL;
1502 else
1503 return 0;
1504 }
1505
1506 /* global encryption state (for all keys) */
1507 if (wrqu->data.flags & IW_ENCODE_OPEN)
1508 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1509 IW_AUTH_ALG_OPEN_SYSTEM);
1510 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1511 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1512 IW_AUTH_ALG_SHARED_KEY);
1513 if (ret != 0)
1514 return ret;
1515
1516 if (wrqu->data.length > 0) {
1517 key_len = wrqu->data.length;
1518 key = extra;
1519 } else {
1520 /* must be set as tx key */
1521 if (priv->encr_key_len[index] == 0)
1522 return -EINVAL;
1523 key_len = priv->encr_key_len[index];
1524 key = priv->encr_keys[index];
1525 priv->encr_tx_key_index = index;
1526 }
1527
1528 if (add_wep_key(usbdev, key, key_len, index) != 0)
1529 return -EINVAL;
1530
1531 if (index == priv->encr_tx_key_index)
1532 /* ndis drivers want essid to be set after setting encr */
1533 set_essid(usbdev, &priv->essid);
1534
1535 return 0;
1536 }
1537
1538
1539 static int rndis_iw_set_encode_ext(struct net_device *dev,
1540 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1541 {
1542 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1543 struct usbnet *usbdev = netdev_priv(dev);
1544 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1545 struct ndis_80211_key ndis_key;
1546 int keyidx, ret;
1547 u8 *addr;
1548
1549 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1550
1551 /* iwconfig gives index as 1 - N */
1552 if (keyidx)
1553 keyidx--;
1554 else
1555 keyidx = priv->encr_tx_key_index;
1556
1557 if (keyidx < 0 || keyidx >= 4)
1558 return -EINVAL;
1559
1560 if (ext->alg == WPA_ALG_WEP) {
1561 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1562 priv->encr_tx_key_index = keyidx;
1563 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1564 }
1565
1566 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1567 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1568 return remove_key(usbdev, keyidx, NULL);
1569
1570 if (ext->key_len > sizeof(ndis_key.material))
1571 return -1;
1572
1573 memset(&ndis_key, 0, sizeof(ndis_key));
1574
1575 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1576 sizeof(ndis_key.material) + ext->key_len);
1577 ndis_key.length = cpu_to_le32(ext->key_len);
1578 ndis_key.index = cpu_to_le32(keyidx);
1579
1580 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
1581 memcpy(ndis_key.rsc, ext->rx_seq, 6);
1582 ndis_key.index |= cpu_to_le32(1 << 29);
1583 }
1584
1585 addr = ext->addr.sa_data;
1586 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
1587 /* group key */
1588 if (priv->infra_mode == ndis_80211_infra_adhoc)
1589 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1590 else
1591 get_bssid(usbdev, ndis_key.bssid);
1592 } else {
1593 /* pairwise key */
1594 ndis_key.index |= cpu_to_le32(1 << 30);
1595 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1596 }
1597
1598 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1599 ndis_key.index |= cpu_to_le32(1 << 31);
1600
1601 if (ext->alg == IW_ENCODE_ALG_TKIP && ext->key_len == 32) {
1602 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1603 * different order than NDIS spec, so swap the order here. */
1604 memcpy(ndis_key.material, ext->key, 16);
1605 memcpy(ndis_key.material + 16, ext->key + 24, 8);
1606 memcpy(ndis_key.material + 24, ext->key + 16, 8);
1607 } else
1608 memcpy(ndis_key.material, ext->key, ext->key_len);
1609
1610 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1611 le32_to_cpu(ndis_key.size));
1612 devdbg(usbdev, "SIOCSIWENCODEEXT: OID_802_11_ADD_KEY -> %08X", ret);
1613 if (ret != 0)
1614 return ret;
1615
1616 priv->encr_key_len[keyidx] = ext->key_len;
1617 memcpy(&priv->encr_keys[keyidx], ndis_key.material, ext->key_len);
1618 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1619 priv->encr_tx_key_index = keyidx;
1620
1621 return 0;
1622 }
1623
1624
1625 static int rndis_iw_set_scan(struct net_device *dev,
1626 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1627 {
1628 struct usbnet *usbdev = netdev_priv(dev);
1629 union iwreq_data evt;
1630 int ret = -EINVAL;
1631 __le32 tmp;
1632
1633 devdbg(usbdev, "SIOCSIWSCAN");
1634
1635 if (wrqu->data.flags == 0) {
1636 tmp = ccpu2(1);
1637 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1638 sizeof(tmp));
1639 evt.data.flags = 0;
1640 evt.data.length = 0;
1641 wireless_send_event(dev, SIOCGIWSCAN, &evt, NULL);
1642 }
1643 return ret;
1644 }
1645
1646
1647 static char *rndis_translate_scan(struct net_device *dev,
1648 struct iw_request_info *info, char *cev,
1649 char *end_buf,
1650 struct ndis_80211_bssid_ex *bssid)
1651 {
1652 struct usbnet *usbdev = netdev_priv(dev);
1653 u8 *ie;
1654 char *current_val;
1655 int bssid_len, ie_len, i;
1656 u32 beacon, atim;
1657 struct iw_event iwe;
1658 unsigned char sbuf[32];
1659
1660 bssid_len = le32_to_cpu(bssid->length);
1661
1662 devdbg(usbdev, "BSSID %pM", bssid->mac);
1663 iwe.cmd = SIOCGIWAP;
1664 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1665 memcpy(iwe.u.ap_addr.sa_data, bssid->mac, ETH_ALEN);
1666 cev = iwe_stream_add_event(info, cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1667
1668 devdbg(usbdev, "SSID(%d) %s", le32_to_cpu(bssid->ssid.length),
1669 bssid->ssid.essid);
1670 iwe.cmd = SIOCGIWESSID;
1671 iwe.u.essid.length = le32_to_cpu(bssid->ssid.length);
1672 iwe.u.essid.flags = 1;
1673 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, bssid->ssid.essid);
1674
1675 devdbg(usbdev, "MODE %d", le32_to_cpu(bssid->net_infra));
1676 iwe.cmd = SIOCGIWMODE;
1677 switch (le32_to_cpu(bssid->net_infra)) {
1678 case ndis_80211_infra_adhoc:
1679 iwe.u.mode = IW_MODE_ADHOC;
1680 break;
1681 case ndis_80211_infra_infra:
1682 iwe.u.mode = IW_MODE_INFRA;
1683 break;
1684 /*case ndis_80211_infra_auto_unknown:*/
1685 default:
1686 iwe.u.mode = IW_MODE_AUTO;
1687 break;
1688 }
1689 cev = iwe_stream_add_event(info, cev, end_buf, &iwe, IW_EV_UINT_LEN);
1690
1691 devdbg(usbdev, "FREQ %d kHz", le32_to_cpu(bssid->config.ds_config));
1692 iwe.cmd = SIOCGIWFREQ;
1693 dsconfig_to_freq(le32_to_cpu(bssid->config.ds_config), &iwe.u.freq);
1694 cev = iwe_stream_add_event(info, cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1695
1696 devdbg(usbdev, "QUAL %d", le32_to_cpu(bssid->rssi));
1697 iwe.cmd = IWEVQUAL;
1698 iwe.u.qual.qual = level_to_qual(le32_to_cpu(bssid->rssi));
1699 iwe.u.qual.level = le32_to_cpu(bssid->rssi);
1700 iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED
1701 | IW_QUAL_LEVEL_UPDATED
1702 | IW_QUAL_NOISE_INVALID;
1703 cev = iwe_stream_add_event(info, cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1704
1705 devdbg(usbdev, "ENCODE %d", le32_to_cpu(bssid->privacy));
1706 iwe.cmd = SIOCGIWENCODE;
1707 iwe.u.data.length = 0;
1708 if (le32_to_cpu(bssid->privacy) == ndis_80211_priv_accept_all)
1709 iwe.u.data.flags = IW_ENCODE_DISABLED;
1710 else
1711 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1712
1713 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL);
1714
1715 devdbg(usbdev, "RATES:");
1716 current_val = cev + iwe_stream_lcp_len(info);
1717 iwe.cmd = SIOCGIWRATE;
1718 for (i = 0; i < sizeof(bssid->rates); i++) {
1719 if (bssid->rates[i] & 0x7f) {
1720 iwe.u.bitrate.value =
1721 ((bssid->rates[i] & 0x7f) *
1722 500000);
1723 devdbg(usbdev, " %d", iwe.u.bitrate.value);
1724 current_val = iwe_stream_add_value(info, cev,
1725 current_val, end_buf, &iwe,
1726 IW_EV_PARAM_LEN);
1727 }
1728 }
1729
1730 if ((current_val - cev) > iwe_stream_lcp_len(info))
1731 cev = current_val;
1732
1733 beacon = le32_to_cpu(bssid->config.beacon_period);
1734 devdbg(usbdev, "BCN_INT %d", beacon);
1735 iwe.cmd = IWEVCUSTOM;
1736 snprintf(sbuf, sizeof(sbuf), "bcn_int=%d", beacon);
1737 iwe.u.data.length = strlen(sbuf);
1738 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, sbuf);
1739
1740 atim = le32_to_cpu(bssid->config.atim_window);
1741 devdbg(usbdev, "ATIM %d", atim);
1742 iwe.cmd = IWEVCUSTOM;
1743 snprintf(sbuf, sizeof(sbuf), "atim=%u", atim);
1744 iwe.u.data.length = strlen(sbuf);
1745 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, sbuf);
1746
1747 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1748 ie_len = min(bssid_len - (int)sizeof(*bssid),
1749 (int)le32_to_cpu(bssid->ie_length));
1750 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1751 while (ie_len >= 2 && 2 + ie[1] <= ie_len) {
1752 if ((ie[0] == WLAN_EID_GENERIC && ie[1] >= 4 &&
1753 memcmp(ie + 2, "\x00\x50\xf2\x01", 4) == 0) ||
1754 ie[0] == WLAN_EID_RSN) {
1755 devdbg(usbdev, "IE: WPA%d",
1756 (ie[0] == WLAN_EID_RSN) ? 2 : 1);
1757 iwe.cmd = IWEVGENIE;
1758 /* arbitrary cut-off at 64 */
1759 iwe.u.data.length = min(ie[1] + 2, 64);
1760 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, ie);
1761 }
1762
1763 ie_len -= 2 + ie[1];
1764 ie += 2 + ie[1];
1765 }
1766
1767 return cev;
1768 }
1769
1770
1771 static int rndis_iw_get_scan(struct net_device *dev,
1772 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1773 {
1774 struct usbnet *usbdev = netdev_priv(dev);
1775 void *buf = NULL;
1776 char *cev = extra;
1777 struct ndis_80211_bssid_list_ex *bssid_list;
1778 struct ndis_80211_bssid_ex *bssid;
1779 int ret = -EINVAL, len, count, bssid_len;
1780
1781 devdbg(usbdev, "SIOCGIWSCAN");
1782
1783 len = CONTROL_BUFFER_SIZE;
1784 buf = kmalloc(len, GFP_KERNEL);
1785 if (!buf) {
1786 ret = -ENOMEM;
1787 goto out;
1788 }
1789
1790 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1791
1792 if (ret != 0)
1793 goto out;
1794
1795 bssid_list = buf;
1796 bssid = bssid_list->bssid;
1797 bssid_len = le32_to_cpu(bssid->length);
1798 count = le32_to_cpu(bssid_list->num_items);
1799 devdbg(usbdev, "SIOCGIWSCAN: %d BSSIDs found", count);
1800
1801 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1802 cev = rndis_translate_scan(dev, info, cev,
1803 extra + IW_SCAN_MAX_DATA, bssid);
1804 bssid = (void *)bssid + bssid_len;
1805 bssid_len = le32_to_cpu(bssid->length);
1806 count--;
1807 }
1808
1809 out:
1810 wrqu->data.length = cev - extra;
1811 wrqu->data.flags = 0;
1812 kfree(buf);
1813 return ret;
1814 }
1815
1816
1817 static int rndis_iw_set_genie(struct net_device *dev,
1818 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1819 {
1820 struct usbnet *usbdev = netdev_priv(dev);
1821 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1822 int ret = 0;
1823
1824 #ifdef DEBUG
1825 int j;
1826 u8 *gie = extra;
1827 for (j = 0; j < wrqu->data.length; j += 8)
1828 devdbg(usbdev,
1829 "SIOCSIWGENIE %04x - "
1830 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1831 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1832 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1833 #endif
1834 /* clear existing IEs */
1835 if (priv->wpa_ie_len) {
1836 kfree(priv->wpa_ie);
1837 priv->wpa_ie_len = 0;
1838 }
1839
1840 /* set new IEs */
1841 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1842 if (priv->wpa_ie) {
1843 priv->wpa_ie_len = wrqu->data.length;
1844 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1845 } else
1846 ret = -ENOMEM;
1847 return ret;
1848 }
1849
1850
1851 static int rndis_iw_get_genie(struct net_device *dev,
1852 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1853 {
1854 struct usbnet *usbdev = netdev_priv(dev);
1855 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1856
1857 devdbg(usbdev, "SIOCGIWGENIE");
1858
1859 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1860 wrqu->data.length = 0;
1861 return 0;
1862 }
1863
1864 if (wrqu->data.length < priv->wpa_ie_len)
1865 return -E2BIG;
1866
1867 wrqu->data.length = priv->wpa_ie_len;
1868 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1869
1870 return 0;
1871 }
1872
1873
1874 static int rndis_iw_set_rts(struct net_device *dev,
1875 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1876 {
1877 struct usbnet *usbdev = netdev_priv(dev);
1878 __le32 tmp;
1879 devdbg(usbdev, "SIOCSIWRTS");
1880
1881 tmp = cpu_to_le32(wrqu->rts.value);
1882 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1883 sizeof(tmp));
1884 }
1885
1886
1887 static int rndis_iw_get_rts(struct net_device *dev,
1888 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1889 {
1890 struct usbnet *usbdev = netdev_priv(dev);
1891 __le32 tmp;
1892 int len, ret;
1893
1894 len = sizeof(tmp);
1895 ret = rndis_query_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp, &len);
1896 if (ret == 0) {
1897 wrqu->rts.value = le32_to_cpu(tmp);
1898 wrqu->rts.flags = 1;
1899 wrqu->rts.disabled = 0;
1900 }
1901
1902 devdbg(usbdev, "SIOCGIWRTS: %d", wrqu->rts.value);
1903
1904 return ret;
1905 }
1906
1907
1908 static int rndis_iw_set_frag(struct net_device *dev,
1909 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1910 {
1911 struct usbnet *usbdev = netdev_priv(dev);
1912 __le32 tmp;
1913
1914 devdbg(usbdev, "SIOCSIWFRAG");
1915
1916 tmp = cpu_to_le32(wrqu->frag.value);
1917 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1918 sizeof(tmp));
1919 }
1920
1921
1922 static int rndis_iw_get_frag(struct net_device *dev,
1923 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1924 {
1925 struct usbnet *usbdev = netdev_priv(dev);
1926 __le32 tmp;
1927 int len, ret;
1928
1929 len = sizeof(tmp);
1930 ret = rndis_query_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1931 &len);
1932 if (ret == 0) {
1933 wrqu->frag.value = le32_to_cpu(tmp);
1934 wrqu->frag.flags = 1;
1935 wrqu->frag.disabled = 0;
1936 }
1937 devdbg(usbdev, "SIOCGIWFRAG: %d", wrqu->frag.value);
1938 return ret;
1939 }
1940
1941
1942 static int rndis_iw_set_nick(struct net_device *dev,
1943 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1944 {
1945 struct usbnet *usbdev = netdev_priv(dev);
1946 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1947
1948 devdbg(usbdev, "SIOCSIWNICK");
1949
1950 priv->nick_len = wrqu->data.length;
1951 if (priv->nick_len > 32)
1952 priv->nick_len = 32;
1953
1954 memcpy(priv->nick, extra, priv->nick_len);
1955 return 0;
1956 }
1957
1958
1959 static int rndis_iw_get_nick(struct net_device *dev,
1960 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1961 {
1962 struct usbnet *usbdev = netdev_priv(dev);
1963 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1964
1965 wrqu->data.flags = 1;
1966 wrqu->data.length = priv->nick_len;
1967 memcpy(extra, priv->nick, priv->nick_len);
1968
1969 devdbg(usbdev, "SIOCGIWNICK: '%s'", priv->nick);
1970
1971 return 0;
1972 }
1973
1974
1975 static int rndis_iw_set_freq(struct net_device *dev,
1976 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1977 {
1978 struct usbnet *usbdev = netdev_priv(dev);
1979 struct ndis_80211_conf config;
1980 unsigned int dsconfig;
1981 int len, ret;
1982
1983 /* this OID is valid only when not associated */
1984 if (is_associated(usbdev))
1985 return 0;
1986
1987 dsconfig = 0;
1988 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
1989 return -EINVAL;
1990
1991 len = sizeof(config);
1992 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1993 if (ret != 0) {
1994 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
1995 return 0;
1996 }
1997
1998 config.ds_config = cpu_to_le32(dsconfig);
1999
2000 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
2001 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
2002 sizeof(config));
2003 }
2004
2005
2006 static int rndis_iw_get_freq(struct net_device *dev,
2007 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2008 {
2009 struct usbnet *usbdev = netdev_priv(dev);
2010 struct ndis_80211_conf config;
2011 int len, ret;
2012
2013 len = sizeof(config);
2014 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2015 if (ret == 0)
2016 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
2017
2018 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
2019 return ret;
2020 }
2021
2022
2023 static int rndis_iw_get_txpower(struct net_device *dev,
2024 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2025 {
2026 struct usbnet *usbdev = netdev_priv(dev);
2027 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2028 __le32 tx_power;
2029 int ret = 0, len;
2030
2031 if (priv->radio_on) {
2032 if (priv->caps & CAP_SUPPORT_TXPOWER) {
2033 len = sizeof(tx_power);
2034 ret = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
2035 &tx_power, &len);
2036 if (ret != 0)
2037 return ret;
2038 } else
2039 /* fake incase not supported */
2040 tx_power = cpu_to_le32(get_bcm4320_power(priv));
2041
2042 wrqu->txpower.flags = IW_TXPOW_MWATT;
2043 wrqu->txpower.value = le32_to_cpu(tx_power);
2044 wrqu->txpower.disabled = 0;
2045 } else {
2046 wrqu->txpower.flags = IW_TXPOW_MWATT;
2047 wrqu->txpower.value = 0;
2048 wrqu->txpower.disabled = 1;
2049 }
2050
2051 devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
2052
2053 return ret;
2054 }
2055
2056
2057 static int rndis_iw_set_txpower(struct net_device *dev,
2058 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2059 {
2060 struct usbnet *usbdev = netdev_priv(dev);
2061 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2062 __le32 tx_power = 0;
2063 int ret = 0;
2064
2065 if (!wrqu->txpower.disabled) {
2066 if (wrqu->txpower.flags == IW_TXPOW_MWATT)
2067 tx_power = cpu_to_le32(wrqu->txpower.value);
2068 else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
2069 if (wrqu->txpower.value > 20)
2070 tx_power = cpu_to_le32(128);
2071 else if (wrqu->txpower.value < -43)
2072 tx_power = cpu_to_le32(127);
2073 else {
2074 signed char tmp;
2075 tmp = wrqu->txpower.value;
2076 tmp = -12 - tmp;
2077 tmp <<= 2;
2078 tx_power = cpu_to_le32((unsigned char)tmp);
2079 }
2080 }
2081 }
2082
2083 devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
2084
2085 if (le32_to_cpu(tx_power) != 0) {
2086 if (priv->caps & CAP_SUPPORT_TXPOWER) {
2087 /* turn radio on first */
2088 if (!priv->radio_on)
2089 disassociate(usbdev, 1);
2090
2091 ret = rndis_set_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
2092 &tx_power, sizeof(tx_power));
2093 if (ret != 0)
2094 ret = -EOPNOTSUPP;
2095 return ret;
2096 } else {
2097 /* txpower unsupported, just turn radio on */
2098 if (!priv->radio_on)
2099 return disassociate(usbdev, 1);
2100 return 0; /* all ready on */
2101 }
2102 }
2103
2104 /* tx_power == 0, turn off radio */
2105 return disassociate(usbdev, 0);
2106 }
2107
2108
2109 static int rndis_iw_get_rate(struct net_device *dev,
2110 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2111 {
2112 struct usbnet *usbdev = netdev_priv(dev);
2113 __le32 tmp;
2114 int ret, len;
2115
2116 len = sizeof(tmp);
2117 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
2118 if (ret == 0) {
2119 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
2120 wrqu->bitrate.disabled = 0;
2121 wrqu->bitrate.flags = 1;
2122 }
2123 return ret;
2124 }
2125
2126
2127 static int rndis_iw_set_mlme(struct net_device *dev,
2128 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2129 {
2130 struct usbnet *usbdev = netdev_priv(dev);
2131 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2132 struct iw_mlme *mlme = (struct iw_mlme *)extra;
2133 unsigned char bssid[ETH_ALEN];
2134
2135 get_bssid(usbdev, bssid);
2136
2137 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
2138 return -EINVAL;
2139
2140 switch (mlme->cmd) {
2141 case IW_MLME_DEAUTH:
2142 return deauthenticate(usbdev);
2143 case IW_MLME_DISASSOC:
2144 return disassociate(usbdev, priv->radio_on);
2145 default:
2146 return -EOPNOTSUPP;
2147 }
2148
2149 return 0;
2150 }
2151
2152
2153 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
2154 {
2155 struct usbnet *usbdev = netdev_priv(dev);
2156 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2157 unsigned long flags;
2158
2159 spin_lock_irqsave(&priv->stats_lock, flags);
2160 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
2161 spin_unlock_irqrestore(&priv->stats_lock, flags);
2162
2163 return &priv->iwstats;
2164 }
2165
2166
2167 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2168 static const iw_handler rndis_iw_handler[] =
2169 {
2170 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
2171 IW_IOCTL(SIOCGIWNAME) = rndis_iw_get_name,
2172 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
2173 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
2174 IW_IOCTL(SIOCSIWMODE) = rndis_iw_set_mode,
2175 IW_IOCTL(SIOCGIWMODE) = rndis_iw_get_mode,
2176 IW_IOCTL(SIOCGIWRANGE) = rndis_iw_get_range,
2177 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
2178 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
2179 IW_IOCTL(SIOCSIWSCAN) = rndis_iw_set_scan,
2180 IW_IOCTL(SIOCGIWSCAN) = rndis_iw_get_scan,
2181 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
2182 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
2183 IW_IOCTL(SIOCSIWNICKN) = rndis_iw_set_nick,
2184 IW_IOCTL(SIOCGIWNICKN) = rndis_iw_get_nick,
2185 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
2186 IW_IOCTL(SIOCSIWRTS) = rndis_iw_set_rts,
2187 IW_IOCTL(SIOCGIWRTS) = rndis_iw_get_rts,
2188 IW_IOCTL(SIOCSIWFRAG) = rndis_iw_set_frag,
2189 IW_IOCTL(SIOCGIWFRAG) = rndis_iw_get_frag,
2190 IW_IOCTL(SIOCSIWTXPOW) = rndis_iw_set_txpower,
2191 IW_IOCTL(SIOCGIWTXPOW) = rndis_iw_get_txpower,
2192 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2193 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2194 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2195 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2196 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2197 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2198 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2199 };
2200
2201 static const iw_handler rndis_wext_private_handler[] = {
2202 };
2203
2204 static const struct iw_priv_args rndis_wext_private_args[] = {
2205 };
2206
2207
2208 static const struct iw_handler_def rndis_iw_handlers = {
2209 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2210 .num_private = ARRAY_SIZE(rndis_wext_private_handler),
2211 .num_private_args = ARRAY_SIZE(rndis_wext_private_args),
2212 .standard = (iw_handler *)rndis_iw_handler,
2213 .private = (iw_handler *)rndis_wext_private_handler,
2214 .private_args = (struct iw_priv_args *)rndis_wext_private_args,
2215 .get_wireless_stats = rndis_get_wireless_stats,
2216 };
2217
2218
2219 static void rndis_wext_worker(struct work_struct *work)
2220 {
2221 struct rndis_wext_private *priv =
2222 container_of(work, struct rndis_wext_private, work);
2223 struct usbnet *usbdev = priv->usbdev;
2224 union iwreq_data evt;
2225 unsigned char bssid[ETH_ALEN];
2226 struct ndis_80211_assoc_info *info;
2227 int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32;
2228 int ret, offset;
2229
2230 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) {
2231 netif_carrier_on(usbdev->net);
2232
2233 info = kzalloc(assoc_size, GFP_KERNEL);
2234 if (!info)
2235 goto get_bssid;
2236
2237 /* Get association info IEs from device and send them back to
2238 * userspace. */
2239 ret = get_association_info(usbdev, info, assoc_size);
2240 if (!ret) {
2241 evt.data.length = le32_to_cpu(info->req_ie_length);
2242 if (evt.data.length > 0) {
2243 offset = le32_to_cpu(info->offset_req_ies);
2244 wireless_send_event(usbdev->net,
2245 IWEVASSOCREQIE, &evt,
2246 (char *)info + offset);
2247 }
2248
2249 evt.data.length = le32_to_cpu(info->resp_ie_length);
2250 if (evt.data.length > 0) {
2251 offset = le32_to_cpu(info->offset_resp_ies);
2252 wireless_send_event(usbdev->net,
2253 IWEVASSOCRESPIE, &evt,
2254 (char *)info + offset);
2255 }
2256 }
2257
2258 kfree(info);
2259
2260 get_bssid:
2261 ret = get_bssid(usbdev, bssid);
2262 if (!ret) {
2263 evt.data.flags = 0;
2264 evt.data.length = 0;
2265 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2266 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2267 }
2268 }
2269
2270 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) {
2271 netif_carrier_off(usbdev->net);
2272
2273 evt.data.flags = 0;
2274 evt.data.length = 0;
2275 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2276 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2277 }
2278
2279 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2280 set_multicast_list(usbdev);
2281 }
2282
2283 static void rndis_wext_set_multicast_list(struct net_device *dev)
2284 {
2285 struct usbnet *usbdev = netdev_priv(dev);
2286 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2287
2288 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2289 return;
2290
2291 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2292 queue_work(priv->workqueue, &priv->work);
2293 }
2294
2295 static void rndis_wext_link_change(struct usbnet *usbdev, int state)
2296 {
2297 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2298
2299 /* queue work to avoid recursive calls into rndis_command */
2300 set_bit(state ? WORK_LINK_UP : WORK_LINK_DOWN, &priv->work_pending);
2301 queue_work(priv->workqueue, &priv->work);
2302 }
2303
2304
2305 static int rndis_wext_get_caps(struct usbnet *usbdev)
2306 {
2307 struct {
2308 __le32 num_items;
2309 __le32 items[8];
2310 } networks_supported;
2311 int len, retval, i, n;
2312 __le32 tx_power;
2313 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2314
2315 /* determine if supports setting txpower */
2316 len = sizeof(tx_power);
2317 retval = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL, &tx_power,
2318 &len);
2319 if (retval == 0 && le32_to_cpu(tx_power) != 0xFF)
2320 priv->caps |= CAP_SUPPORT_TXPOWER;
2321
2322 /* determine supported modes */
2323 len = sizeof(networks_supported);
2324 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2325 &networks_supported, &len);
2326 if (retval >= 0) {
2327 n = le32_to_cpu(networks_supported.num_items);
2328 if (n > 8)
2329 n = 8;
2330 for (i = 0; i < n; i++) {
2331 switch (le32_to_cpu(networks_supported.items[i])) {
2332 case ndis_80211_type_freq_hop:
2333 case ndis_80211_type_direct_seq:
2334 priv->caps |= CAP_MODE_80211B;
2335 break;
2336 case ndis_80211_type_ofdm_a:
2337 priv->caps |= CAP_MODE_80211A;
2338 break;
2339 case ndis_80211_type_ofdm_g:
2340 priv->caps |= CAP_MODE_80211G;
2341 break;
2342 }
2343 }
2344 if (priv->caps & CAP_MODE_80211A)
2345 strcat(priv->name, "a");
2346 if (priv->caps & CAP_MODE_80211B)
2347 strcat(priv->name, "b");
2348 if (priv->caps & CAP_MODE_80211G)
2349 strcat(priv->name, "g");
2350 }
2351
2352 return retval;
2353 }
2354
2355
2356 #define STATS_UPDATE_JIFFIES (HZ)
2357 static void rndis_update_wireless_stats(struct work_struct *work)
2358 {
2359 struct rndis_wext_private *priv =
2360 container_of(work, struct rndis_wext_private, stats_work.work);
2361 struct usbnet *usbdev = priv->usbdev;
2362 struct iw_statistics iwstats;
2363 __le32 rssi, tmp;
2364 int len, ret, j;
2365 unsigned long flags;
2366 int update_jiffies = STATS_UPDATE_JIFFIES;
2367 void *buf;
2368
2369 spin_lock_irqsave(&priv->stats_lock, flags);
2370 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2371 spin_unlock_irqrestore(&priv->stats_lock, flags);
2372
2373 /* only update stats when connected */
2374 if (!is_associated(usbdev)) {
2375 iwstats.qual.qual = 0;
2376 iwstats.qual.level = 0;
2377 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2378 | IW_QUAL_LEVEL_UPDATED
2379 | IW_QUAL_NOISE_INVALID
2380 | IW_QUAL_QUAL_INVALID
2381 | IW_QUAL_LEVEL_INVALID;
2382 goto end;
2383 }
2384
2385 len = sizeof(rssi);
2386 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2387
2388 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2389 le32_to_cpu(rssi));
2390 if (ret == 0) {
2391 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2392 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2393 iwstats.qual.level = le32_to_cpu(rssi);
2394 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2395 | IW_QUAL_LEVEL_UPDATED
2396 | IW_QUAL_NOISE_INVALID;
2397 }
2398
2399 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2400
2401 len = sizeof(tmp);
2402 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2403 if (ret == 0)
2404 iwstats.discard.misc += le32_to_cpu(tmp);
2405
2406 len = sizeof(tmp);
2407 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2408 if (ret == 0)
2409 iwstats.discard.misc += le32_to_cpu(tmp);
2410
2411 len = sizeof(tmp);
2412 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2413 if (ret == 0)
2414 iwstats.discard.misc += le32_to_cpu(tmp);
2415
2416 /* Workaround transfer stalls on poor quality links.
2417 * TODO: find right way to fix these stalls (as stalls do not happen
2418 * with ndiswrapper/windows driver). */
2419 if (iwstats.qual.qual <= 25) {
2420 /* Decrease stats worker interval to catch stalls.
2421 * faster. Faster than 400-500ms causes packet loss,
2422 * Slower doesn't catch stalls fast enough.
2423 */
2424 j = msecs_to_jiffies(priv->param_workaround_interval);
2425 if (j > STATS_UPDATE_JIFFIES)
2426 j = STATS_UPDATE_JIFFIES;
2427 else if (j <= 0)
2428 j = 1;
2429 update_jiffies = j;
2430
2431 /* Send scan OID. Use of both OIDs is required to get device
2432 * working.
2433 */
2434 tmp = ccpu2(1);
2435 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2436 sizeof(tmp));
2437
2438 len = CONTROL_BUFFER_SIZE;
2439 buf = kmalloc(len, GFP_KERNEL);
2440 if (!buf)
2441 goto end;
2442
2443 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2444 kfree(buf);
2445 }
2446 end:
2447 spin_lock_irqsave(&priv->stats_lock, flags);
2448 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2449 spin_unlock_irqrestore(&priv->stats_lock, flags);
2450
2451 if (update_jiffies >= HZ)
2452 update_jiffies = round_jiffies_relative(update_jiffies);
2453 else {
2454 j = round_jiffies_relative(update_jiffies);
2455 if (abs(j - update_jiffies) <= 10)
2456 update_jiffies = j;
2457 }
2458
2459 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2460 }
2461
2462
2463 static int bcm4320_early_init(struct usbnet *usbdev)
2464 {
2465 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2466 char buf[8];
2467
2468 /* Early initialization settings, setting these won't have effect
2469 * if called after generic_rndis_bind().
2470 */
2471
2472 priv->param_country[0] = modparam_country[0];
2473 priv->param_country[1] = modparam_country[1];
2474 priv->param_country[2] = 0;
2475 priv->param_frameburst = modparam_frameburst;
2476 priv->param_afterburner = modparam_afterburner;
2477 priv->param_power_save = modparam_power_save;
2478 priv->param_power_output = modparam_power_output;
2479 priv->param_roamtrigger = modparam_roamtrigger;
2480 priv->param_roamdelta = modparam_roamdelta;
2481
2482 priv->param_country[0] = toupper(priv->param_country[0]);
2483 priv->param_country[1] = toupper(priv->param_country[1]);
2484 /* doesn't support EU as country code, use FI instead */
2485 if (!strcmp(priv->param_country, "EU"))
2486 strcpy(priv->param_country, "FI");
2487
2488 if (priv->param_power_save < 0)
2489 priv->param_power_save = 0;
2490 else if (priv->param_power_save > 2)
2491 priv->param_power_save = 2;
2492
2493 if (priv->param_power_output < 0)
2494 priv->param_power_output = 0;
2495 else if (priv->param_power_output > 3)
2496 priv->param_power_output = 3;
2497
2498 if (priv->param_roamtrigger < -80)
2499 priv->param_roamtrigger = -80;
2500 else if (priv->param_roamtrigger > -60)
2501 priv->param_roamtrigger = -60;
2502
2503 if (priv->param_roamdelta < 0)
2504 priv->param_roamdelta = 0;
2505 else if (priv->param_roamdelta > 2)
2506 priv->param_roamdelta = 2;
2507
2508 if (modparam_workaround_interval < 0)
2509 priv->param_workaround_interval = 500;
2510 else
2511 priv->param_workaround_interval = modparam_workaround_interval;
2512
2513 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2514 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2515 priv->param_frameburst ? "1" : "0");
2516 rndis_set_config_parameter_str(usbdev, "Afterburner",
2517 priv->param_afterburner ? "1" : "0");
2518 sprintf(buf, "%d", priv->param_power_save);
2519 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2520 sprintf(buf, "%d", priv->param_power_output);
2521 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2522 sprintf(buf, "%d", priv->param_roamtrigger);
2523 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2524 sprintf(buf, "%d", priv->param_roamdelta);
2525 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2526
2527 return 0;
2528 }
2529
2530
2531 static int rndis_wext_bind(struct usbnet *usbdev, struct usb_interface *intf)
2532 {
2533 struct rndis_wext_private *priv;
2534 int retval, len;
2535 __le32 tmp;
2536
2537 /* allocate rndis private data */
2538 priv = kzalloc(sizeof(struct rndis_wext_private), GFP_KERNEL);
2539 if (!priv)
2540 return -ENOMEM;
2541
2542 /* These have to be initialized before calling generic_rndis_bind().
2543 * Otherwise we'll be in big trouble in rndis_wext_early_init().
2544 */
2545 usbdev->driver_priv = priv;
2546 strcpy(priv->name, "IEEE802.11");
2547 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2548 priv->usbdev = usbdev;
2549
2550 mutex_init(&priv->command_lock);
2551 spin_lock_init(&priv->stats_lock);
2552
2553 /* try bind rndis_host */
2554 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2555 if (retval < 0)
2556 goto fail;
2557
2558 /* generic_rndis_bind set packet filter to multicast_all+
2559 * promisc mode which doesn't work well for our devices (device
2560 * picks up rssi to closest station instead of to access point).
2561 *
2562 * rndis_host wants to avoid all OID as much as possible
2563 * so do promisc/multicast handling in rndis_wext.
2564 */
2565 usbdev->net->set_multicast_list = rndis_wext_set_multicast_list;
2566 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2567 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2568 sizeof(tmp));
2569
2570 len = sizeof(tmp);
2571 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2572 &len);
2573 priv->multicast_size = le32_to_cpu(tmp);
2574 if (retval < 0 || priv->multicast_size < 0)
2575 priv->multicast_size = 0;
2576 if (priv->multicast_size > 0)
2577 usbdev->net->flags |= IFF_MULTICAST;
2578 else
2579 usbdev->net->flags &= ~IFF_MULTICAST;
2580
2581 priv->iwstats.qual.qual = 0;
2582 priv->iwstats.qual.level = 0;
2583 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2584 | IW_QUAL_LEVEL_UPDATED
2585 | IW_QUAL_NOISE_INVALID
2586 | IW_QUAL_QUAL_INVALID
2587 | IW_QUAL_LEVEL_INVALID;
2588
2589 rndis_wext_get_caps(usbdev);
2590 set_default_iw_params(usbdev);
2591
2592 /* turn radio on */
2593 priv->radio_on = 1;
2594 disassociate(usbdev, 1);
2595 netif_carrier_off(usbdev->net);
2596
2597 /* because rndis_command() sleeps we need to use workqueue */
2598 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2599 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2600 queue_delayed_work(priv->workqueue, &priv->stats_work,
2601 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2602 INIT_WORK(&priv->work, rndis_wext_worker);
2603
2604 return 0;
2605
2606 fail:
2607 kfree(priv);
2608 return retval;
2609 }
2610
2611
2612 static void rndis_wext_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2613 {
2614 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2615
2616 /* turn radio off */
2617 disassociate(usbdev, 0);
2618
2619 cancel_delayed_work_sync(&priv->stats_work);
2620 cancel_work_sync(&priv->work);
2621 flush_workqueue(priv->workqueue);
2622 destroy_workqueue(priv->workqueue);
2623
2624 if (priv && priv->wpa_ie_len)
2625 kfree(priv->wpa_ie);
2626 kfree(priv);
2627
2628 rndis_unbind(usbdev, intf);
2629 }
2630
2631
2632 static int rndis_wext_reset(struct usbnet *usbdev)
2633 {
2634 return deauthenticate(usbdev);
2635 }
2636
2637
2638 static const struct driver_info bcm4320b_info = {
2639 .description = "Wireless RNDIS device, BCM4320b based",
2640 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2641 .bind = rndis_wext_bind,
2642 .unbind = rndis_wext_unbind,
2643 .status = rndis_status,
2644 .rx_fixup = rndis_rx_fixup,
2645 .tx_fixup = rndis_tx_fixup,
2646 .reset = rndis_wext_reset,
2647 .early_init = bcm4320_early_init,
2648 .link_change = rndis_wext_link_change,
2649 };
2650
2651 static const struct driver_info bcm4320a_info = {
2652 .description = "Wireless RNDIS device, BCM4320a based",
2653 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2654 .bind = rndis_wext_bind,
2655 .unbind = rndis_wext_unbind,
2656 .status = rndis_status,
2657 .rx_fixup = rndis_rx_fixup,
2658 .tx_fixup = rndis_tx_fixup,
2659 .reset = rndis_wext_reset,
2660 .early_init = bcm4320_early_init,
2661 .link_change = rndis_wext_link_change,
2662 };
2663
2664 static const struct driver_info rndis_wext_info = {
2665 .description = "Wireless RNDIS device",
2666 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2667 .bind = rndis_wext_bind,
2668 .unbind = rndis_wext_unbind,
2669 .status = rndis_status,
2670 .rx_fixup = rndis_rx_fixup,
2671 .tx_fixup = rndis_tx_fixup,
2672 .reset = rndis_wext_reset,
2673 .early_init = bcm4320_early_init,
2674 .link_change = rndis_wext_link_change,
2675 };
2676
2677 /*-------------------------------------------------------------------------*/
2678
2679 static const struct usb_device_id products [] = {
2680 #define RNDIS_MASTER_INTERFACE \
2681 .bInterfaceClass = USB_CLASS_COMM, \
2682 .bInterfaceSubClass = 2 /* ACM */, \
2683 .bInterfaceProtocol = 0x0ff
2684
2685 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2686 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2687 */
2688 {
2689 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2690 | USB_DEVICE_ID_MATCH_DEVICE,
2691 .idVendor = 0x0411,
2692 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2693 RNDIS_MASTER_INTERFACE,
2694 .driver_info = (unsigned long) &bcm4320b_info,
2695 }, {
2696 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2697 | USB_DEVICE_ID_MATCH_DEVICE,
2698 .idVendor = 0x0baf,
2699 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2700 RNDIS_MASTER_INTERFACE,
2701 .driver_info = (unsigned long) &bcm4320b_info,
2702 }, {
2703 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2704 | USB_DEVICE_ID_MATCH_DEVICE,
2705 .idVendor = 0x050d,
2706 .idProduct = 0x011b, /* Belkin F5D7051 */
2707 RNDIS_MASTER_INTERFACE,
2708 .driver_info = (unsigned long) &bcm4320b_info,
2709 }, {
2710 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2711 | USB_DEVICE_ID_MATCH_DEVICE,
2712 .idVendor = 0x1799, /* Belkin has two vendor ids */
2713 .idProduct = 0x011b, /* Belkin F5D7051 */
2714 RNDIS_MASTER_INTERFACE,
2715 .driver_info = (unsigned long) &bcm4320b_info,
2716 }, {
2717 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2718 | USB_DEVICE_ID_MATCH_DEVICE,
2719 .idVendor = 0x13b1,
2720 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2721 RNDIS_MASTER_INTERFACE,
2722 .driver_info = (unsigned long) &bcm4320b_info,
2723 }, {
2724 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2725 | USB_DEVICE_ID_MATCH_DEVICE,
2726 .idVendor = 0x13b1,
2727 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2728 RNDIS_MASTER_INTERFACE,
2729 .driver_info = (unsigned long) &bcm4320b_info,
2730 }, {
2731 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2732 | USB_DEVICE_ID_MATCH_DEVICE,
2733 .idVendor = 0x0b05,
2734 .idProduct = 0x1717, /* Asus WL169gE */
2735 RNDIS_MASTER_INTERFACE,
2736 .driver_info = (unsigned long) &bcm4320b_info,
2737 }, {
2738 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2739 | USB_DEVICE_ID_MATCH_DEVICE,
2740 .idVendor = 0x0a5c,
2741 .idProduct = 0xd11b, /* Eminent EM4045 */
2742 RNDIS_MASTER_INTERFACE,
2743 .driver_info = (unsigned long) &bcm4320b_info,
2744 }, {
2745 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2746 | USB_DEVICE_ID_MATCH_DEVICE,
2747 .idVendor = 0x1690,
2748 .idProduct = 0x0715, /* BT Voyager 1055 */
2749 RNDIS_MASTER_INTERFACE,
2750 .driver_info = (unsigned long) &bcm4320b_info,
2751 },
2752 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2753 * parameters available, hardware probably contain older firmware version with
2754 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2755 */
2756 {
2757 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2758 | USB_DEVICE_ID_MATCH_DEVICE,
2759 .idVendor = 0x13b1,
2760 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2761 RNDIS_MASTER_INTERFACE,
2762 .driver_info = (unsigned long) &bcm4320a_info,
2763 }, {
2764 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2765 | USB_DEVICE_ID_MATCH_DEVICE,
2766 .idVendor = 0x0baf,
2767 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2768 RNDIS_MASTER_INTERFACE,
2769 .driver_info = (unsigned long) &bcm4320a_info,
2770 }, {
2771 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2772 | USB_DEVICE_ID_MATCH_DEVICE,
2773 .idVendor = 0x0411,
2774 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2775 RNDIS_MASTER_INTERFACE,
2776 .driver_info = (unsigned long) &bcm4320a_info,
2777 },
2778 /* Generic Wireless RNDIS devices that we don't have exact
2779 * idVendor/idProduct/chip yet.
2780 */
2781 {
2782 /* RNDIS is MSFT's un-official variant of CDC ACM */
2783 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2784 .driver_info = (unsigned long) &rndis_wext_info,
2785 }, {
2786 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2787 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2788 .driver_info = (unsigned long) &rndis_wext_info,
2789 },
2790 { }, // END
2791 };
2792 MODULE_DEVICE_TABLE(usb, products);
2793
2794 static struct usb_driver rndis_wlan_driver = {
2795 .name = "rndis_wlan",
2796 .id_table = products,
2797 .probe = usbnet_probe,
2798 .disconnect = usbnet_disconnect,
2799 .suspend = usbnet_suspend,
2800 .resume = usbnet_resume,
2801 };
2802
2803 static int __init rndis_wlan_init(void)
2804 {
2805 return usb_register(&rndis_wlan_driver);
2806 }
2807 module_init(rndis_wlan_init);
2808
2809 static void __exit rndis_wlan_exit(void)
2810 {
2811 usb_deregister(&rndis_wlan_driver);
2812 }
2813 module_exit(rndis_wlan_exit);
2814
2815 MODULE_AUTHOR("Bjorge Dijkstra");
2816 MODULE_AUTHOR("Jussi Kivilinna");
2817 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2818 MODULE_LICENSE("GPL");
2819
Support for the Chinese Samsung S3C2440 based development boards