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rndis_wlan: convert get/set mode to cfg80211
[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/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 <net/wireless.h>
46 #include <net/cfg80211.h>
47 #include <linux/usb/usbnet.h>
48 #include <linux/usb/rndis_host.h>
49
50
51 /* NOTE: All these are settings for Broadcom chipset */
52 static char modparam_country[4] = "EU";
53 module_param_string(country, modparam_country, 4, 0444);
54 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
55
56 static int modparam_frameburst = 1;
57 module_param_named(frameburst, modparam_frameburst, int, 0444);
58 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
59
60 static int modparam_afterburner = 0;
61 module_param_named(afterburner, modparam_afterburner, int, 0444);
62 MODULE_PARM_DESC(afterburner,
63 "enable afterburner aka '125 High Speed Mode' (default: off)");
64
65 static int modparam_power_save = 0;
66 module_param_named(power_save, modparam_power_save, int, 0444);
67 MODULE_PARM_DESC(power_save,
68 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
69
70 static int modparam_power_output = 3;
71 module_param_named(power_output, modparam_power_output, int, 0444);
72 MODULE_PARM_DESC(power_output,
73 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
74
75 static int modparam_roamtrigger = -70;
76 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
77 MODULE_PARM_DESC(roamtrigger,
78 "set roaming dBm trigger: -80=optimize for distance, "
79 "-60=bandwidth (default: -70)");
80
81 static int modparam_roamdelta = 1;
82 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
83 MODULE_PARM_DESC(roamdelta,
84 "set roaming tendency: 0=aggressive, 1=moderate, "
85 "2=conservative (default: moderate)");
86
87 static int modparam_workaround_interval = 500;
88 module_param_named(workaround_interval, modparam_workaround_interval,
89 int, 0444);
90 MODULE_PARM_DESC(workaround_interval,
91 "set stall workaround interval in msecs (default: 500)");
92
93
94 /* various RNDIS OID defs */
95 #define OID_GEN_LINK_SPEED cpu_to_le32(0x00010107)
96 #define OID_GEN_RNDIS_CONFIG_PARAMETER cpu_to_le32(0x0001021b)
97
98 #define OID_GEN_XMIT_OK cpu_to_le32(0x00020101)
99 #define OID_GEN_RCV_OK cpu_to_le32(0x00020102)
100 #define OID_GEN_XMIT_ERROR cpu_to_le32(0x00020103)
101 #define OID_GEN_RCV_ERROR cpu_to_le32(0x00020104)
102 #define OID_GEN_RCV_NO_BUFFER cpu_to_le32(0x00020105)
103
104 #define OID_802_3_PERMANENT_ADDRESS cpu_to_le32(0x01010101)
105 #define OID_802_3_CURRENT_ADDRESS cpu_to_le32(0x01010102)
106 #define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103)
107 #define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104)
108
109 #define OID_802_11_BSSID cpu_to_le32(0x0d010101)
110 #define OID_802_11_SSID cpu_to_le32(0x0d010102)
111 #define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108)
112 #define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113)
113 #define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114)
114 #define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115)
115 #define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118)
116 #define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119)
117 #define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a)
118 #define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b)
119 #define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d)
120 #define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e)
121 #define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f)
122 #define OID_802_11_PMKID cpu_to_le32(0x0d010123)
123 #define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
124 #define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
125 #define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
126 #define OID_802_11_RSSI cpu_to_le32(0x0d010206)
127 #define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
128 #define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
129 #define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
130 #define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
131 #define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
132 #define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
133
134
135 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
136 #define WL_NOISE -96 /* typical noise level in dBm */
137 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
138
139
140 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
141 * based on wireless rndis) has default txpower of 13dBm.
142 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
143 * 13dBm == 19.9mW
144 */
145 #define BCM4320_DEFAULT_TXPOWER 20
146
147
148 /* codes for "status" field of completion messages */
149 #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
150 #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
151
152
153 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
154 * slightly modified for datatype endianess, etc
155 */
156 #define NDIS_802_11_LENGTH_SSID 32
157 #define NDIS_802_11_LENGTH_RATES 8
158 #define NDIS_802_11_LENGTH_RATES_EX 16
159
160 enum ndis_80211_net_type {
161 ndis_80211_type_freq_hop,
162 ndis_80211_type_direct_seq,
163 ndis_80211_type_ofdm_a,
164 ndis_80211_type_ofdm_g
165 };
166
167 enum ndis_80211_net_infra {
168 ndis_80211_infra_adhoc,
169 ndis_80211_infra_infra,
170 ndis_80211_infra_auto_unknown
171 };
172
173 enum ndis_80211_auth_mode {
174 ndis_80211_auth_open,
175 ndis_80211_auth_shared,
176 ndis_80211_auth_auto_switch,
177 ndis_80211_auth_wpa,
178 ndis_80211_auth_wpa_psk,
179 ndis_80211_auth_wpa_none,
180 ndis_80211_auth_wpa2,
181 ndis_80211_auth_wpa2_psk
182 };
183
184 enum ndis_80211_encr_status {
185 ndis_80211_encr_wep_enabled,
186 ndis_80211_encr_disabled,
187 ndis_80211_encr_wep_key_absent,
188 ndis_80211_encr_not_supported,
189 ndis_80211_encr_tkip_enabled,
190 ndis_80211_encr_tkip_key_absent,
191 ndis_80211_encr_ccmp_enabled,
192 ndis_80211_encr_ccmp_key_absent
193 };
194
195 enum ndis_80211_priv_filter {
196 ndis_80211_priv_accept_all,
197 ndis_80211_priv_8021x_wep
198 };
199
200 struct ndis_80211_ssid {
201 __le32 length;
202 u8 essid[NDIS_802_11_LENGTH_SSID];
203 } __attribute__((packed));
204
205 struct ndis_80211_conf_freq_hop {
206 __le32 length;
207 __le32 hop_pattern;
208 __le32 hop_set;
209 __le32 dwell_time;
210 } __attribute__((packed));
211
212 struct ndis_80211_conf {
213 __le32 length;
214 __le32 beacon_period;
215 __le32 atim_window;
216 __le32 ds_config;
217 struct ndis_80211_conf_freq_hop fh_config;
218 } __attribute__((packed));
219
220 struct ndis_80211_bssid_ex {
221 __le32 length;
222 u8 mac[6];
223 u8 padding[2];
224 struct ndis_80211_ssid ssid;
225 __le32 privacy;
226 __le32 rssi;
227 __le32 net_type;
228 struct ndis_80211_conf config;
229 __le32 net_infra;
230 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
231 __le32 ie_length;
232 u8 ies[0];
233 } __attribute__((packed));
234
235 struct ndis_80211_bssid_list_ex {
236 __le32 num_items;
237 struct ndis_80211_bssid_ex bssid[0];
238 } __attribute__((packed));
239
240 struct ndis_80211_fixed_ies {
241 u8 timestamp[8];
242 __le16 beacon_interval;
243 __le16 capabilities;
244 } __attribute__((packed));
245
246 struct ndis_80211_wep_key {
247 __le32 size;
248 __le32 index;
249 __le32 length;
250 u8 material[32];
251 } __attribute__((packed));
252
253 struct ndis_80211_key {
254 __le32 size;
255 __le32 index;
256 __le32 length;
257 u8 bssid[6];
258 u8 padding[6];
259 u8 rsc[8];
260 u8 material[32];
261 } __attribute__((packed));
262
263 struct ndis_80211_remove_key {
264 __le32 size;
265 __le32 index;
266 u8 bssid[6];
267 } __attribute__((packed));
268
269 struct ndis_config_param {
270 __le32 name_offs;
271 __le32 name_length;
272 __le32 type;
273 __le32 value_offs;
274 __le32 value_length;
275 } __attribute__((packed));
276
277 struct ndis_80211_assoc_info {
278 __le32 length;
279 __le16 req_ies;
280 struct req_ie {
281 __le16 capa;
282 __le16 listen_interval;
283 u8 cur_ap_address[6];
284 } req_ie;
285 __le32 req_ie_length;
286 __le32 offset_req_ies;
287 __le16 resp_ies;
288 struct resp_ie {
289 __le16 capa;
290 __le16 status_code;
291 __le16 assoc_id;
292 } resp_ie;
293 __le32 resp_ie_length;
294 __le32 offset_resp_ies;
295 } __attribute__((packed));
296
297 /* these have to match what is in wpa_supplicant */
298 enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
299 enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
300 CIPHER_WEP104 };
301 enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE,
302 KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE };
303
304 /*
305 * private data
306 */
307 #define NET_TYPE_11FB 0
308
309 #define CAP_MODE_80211A 1
310 #define CAP_MODE_80211B 2
311 #define CAP_MODE_80211G 4
312 #define CAP_MODE_MASK 7
313 #define CAP_SUPPORT_TXPOWER 8
314
315 #define WORK_LINK_UP (1<<0)
316 #define WORK_LINK_DOWN (1<<1)
317 #define WORK_SET_MULTICAST_LIST (1<<2)
318
319 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
320
321 static const struct ieee80211_channel rndis_channels[] = {
322 { .center_freq = 2412 },
323 { .center_freq = 2417 },
324 { .center_freq = 2422 },
325 { .center_freq = 2427 },
326 { .center_freq = 2432 },
327 { .center_freq = 2437 },
328 { .center_freq = 2442 },
329 { .center_freq = 2447 },
330 { .center_freq = 2452 },
331 { .center_freq = 2457 },
332 { .center_freq = 2462 },
333 { .center_freq = 2467 },
334 { .center_freq = 2472 },
335 { .center_freq = 2484 },
336 };
337
338 static const struct ieee80211_rate rndis_rates[] = {
339 { .bitrate = 10 },
340 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
341 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
342 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
343 { .bitrate = 60 },
344 { .bitrate = 90 },
345 { .bitrate = 120 },
346 { .bitrate = 180 },
347 { .bitrate = 240 },
348 { .bitrate = 360 },
349 { .bitrate = 480 },
350 { .bitrate = 540 }
351 };
352
353 /* RNDIS device private data */
354 struct rndis_wext_private {
355 struct usbnet *usbdev;
356
357 struct wireless_dev wdev;
358
359 struct workqueue_struct *workqueue;
360 struct delayed_work stats_work;
361 struct work_struct work;
362 struct mutex command_lock;
363 spinlock_t stats_lock;
364 unsigned long work_pending;
365
366 struct ieee80211_supported_band band;
367 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
368 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
369
370 struct iw_statistics iwstats;
371 struct iw_statistics privstats;
372
373 int nick_len;
374 char nick[32];
375
376 int caps;
377 int multicast_size;
378
379 /* module parameters */
380 char param_country[4];
381 int param_frameburst;
382 int param_afterburner;
383 int param_power_save;
384 int param_power_output;
385 int param_roamtrigger;
386 int param_roamdelta;
387 u32 param_workaround_interval;
388
389 /* hardware state */
390 int radio_on;
391 int infra_mode;
392 struct ndis_80211_ssid essid;
393
394 /* encryption stuff */
395 int encr_tx_key_index;
396 char encr_keys[4][32];
397 int encr_key_len[4];
398 int wpa_version;
399 int wpa_keymgmt;
400 int wpa_authalg;
401 int wpa_ie_len;
402 u8 *wpa_ie;
403 int wpa_cipher_pair;
404 int wpa_cipher_group;
405
406 u8 command_buffer[COMMAND_BUFFER_SIZE];
407 };
408
409 /*
410 * cfg80211 ops
411 */
412 static int rndis_change_virtual_intf(struct wiphy *wiphy, int ifindex,
413 enum nl80211_iftype type, u32 *flags,
414 struct vif_params *params);
415
416 struct cfg80211_ops rndis_config_ops = {
417 .change_virtual_intf = rndis_change_virtual_intf,
418 };
419
420 void *rndis_wiphy_privid = &rndis_wiphy_privid;
421
422 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
423
424 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
425 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
426 0xff, 0xff, 0xff };
427
428
429 static struct rndis_wext_private *get_rndis_wext_priv(struct usbnet *dev)
430 {
431 return (struct rndis_wext_private *)dev->driver_priv;
432 }
433
434
435 static u32 get_bcm4320_power(struct rndis_wext_private *priv)
436 {
437 return BCM4320_DEFAULT_TXPOWER *
438 bcm4320_power_output[priv->param_power_output] / 100;
439 }
440
441
442 /* translate error code */
443 static int rndis_error_status(__le32 rndis_status)
444 {
445 int ret = -EINVAL;
446 switch (rndis_status) {
447 case RNDIS_STATUS_SUCCESS:
448 ret = 0;
449 break;
450 case RNDIS_STATUS_FAILURE:
451 case RNDIS_STATUS_INVALID_DATA:
452 ret = -EINVAL;
453 break;
454 case RNDIS_STATUS_NOT_SUPPORTED:
455 ret = -EOPNOTSUPP;
456 break;
457 case RNDIS_STATUS_ADAPTER_NOT_READY:
458 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
459 ret = -EBUSY;
460 break;
461 }
462 return ret;
463 }
464
465
466 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
467 {
468 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
469 union {
470 void *buf;
471 struct rndis_msg_hdr *header;
472 struct rndis_query *get;
473 struct rndis_query_c *get_c;
474 } u;
475 int ret, buflen;
476
477 buflen = *len + sizeof(*u.get);
478 if (buflen < CONTROL_BUFFER_SIZE)
479 buflen = CONTROL_BUFFER_SIZE;
480
481 if (buflen > COMMAND_BUFFER_SIZE) {
482 u.buf = kmalloc(buflen, GFP_KERNEL);
483 if (!u.buf)
484 return -ENOMEM;
485 } else {
486 u.buf = priv->command_buffer;
487 }
488
489 mutex_lock(&priv->command_lock);
490
491 memset(u.get, 0, sizeof *u.get);
492 u.get->msg_type = RNDIS_MSG_QUERY;
493 u.get->msg_len = cpu_to_le32(sizeof *u.get);
494 u.get->oid = oid;
495
496 ret = rndis_command(dev, u.header, buflen);
497 if (ret == 0) {
498 ret = le32_to_cpu(u.get_c->len);
499 *len = (*len > ret) ? ret : *len;
500 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
501 ret = rndis_error_status(u.get_c->status);
502 }
503
504 mutex_unlock(&priv->command_lock);
505
506 if (u.buf != priv->command_buffer)
507 kfree(u.buf);
508 return ret;
509 }
510
511
512 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
513 {
514 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
515 union {
516 void *buf;
517 struct rndis_msg_hdr *header;
518 struct rndis_set *set;
519 struct rndis_set_c *set_c;
520 } u;
521 int ret, buflen;
522
523 buflen = len + sizeof(*u.set);
524 if (buflen < CONTROL_BUFFER_SIZE)
525 buflen = CONTROL_BUFFER_SIZE;
526
527 if (buflen > COMMAND_BUFFER_SIZE) {
528 u.buf = kmalloc(buflen, GFP_KERNEL);
529 if (!u.buf)
530 return -ENOMEM;
531 } else {
532 u.buf = priv->command_buffer;
533 }
534
535 mutex_lock(&priv->command_lock);
536
537 memset(u.set, 0, sizeof *u.set);
538 u.set->msg_type = RNDIS_MSG_SET;
539 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
540 u.set->oid = oid;
541 u.set->len = cpu_to_le32(len);
542 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
543 u.set->handle = cpu_to_le32(0);
544 memcpy(u.buf + sizeof(*u.set), data, len);
545
546 ret = rndis_command(dev, u.header, buflen);
547 if (ret == 0)
548 ret = rndis_error_status(u.set_c->status);
549
550 mutex_unlock(&priv->command_lock);
551
552 if (u.buf != priv->command_buffer)
553 kfree(u.buf);
554 return ret;
555 }
556
557
558 /*
559 * Specs say that we can only set config parameters only soon after device
560 * initialization.
561 * value_type: 0 = u32, 2 = unicode string
562 */
563 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
564 int value_type, void *value)
565 {
566 struct ndis_config_param *infobuf;
567 int value_len, info_len, param_len, ret, i;
568 __le16 *unibuf;
569 __le32 *dst_value;
570
571 if (value_type == 0)
572 value_len = sizeof(__le32);
573 else if (value_type == 2)
574 value_len = strlen(value) * sizeof(__le16);
575 else
576 return -EINVAL;
577
578 param_len = strlen(param) * sizeof(__le16);
579 info_len = sizeof(*infobuf) + param_len + value_len;
580
581 #ifdef DEBUG
582 info_len += 12;
583 #endif
584 infobuf = kmalloc(info_len, GFP_KERNEL);
585 if (!infobuf)
586 return -ENOMEM;
587
588 #ifdef DEBUG
589 info_len -= 12;
590 /* extra 12 bytes are for padding (debug output) */
591 memset(infobuf, 0xCC, info_len + 12);
592 #endif
593
594 if (value_type == 2)
595 devdbg(dev, "setting config parameter: %s, value: %s",
596 param, (u8 *)value);
597 else
598 devdbg(dev, "setting config parameter: %s, value: %d",
599 param, *(u32 *)value);
600
601 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
602 infobuf->name_length = cpu_to_le32(param_len);
603 infobuf->type = cpu_to_le32(value_type);
604 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
605 infobuf->value_length = cpu_to_le32(value_len);
606
607 /* simple string to unicode string conversion */
608 unibuf = (void *)infobuf + sizeof(*infobuf);
609 for (i = 0; i < param_len / sizeof(__le16); i++)
610 unibuf[i] = cpu_to_le16(param[i]);
611
612 if (value_type == 2) {
613 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
614 for (i = 0; i < value_len / sizeof(__le16); i++)
615 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
616 } else {
617 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
618 *dst_value = cpu_to_le32(*(u32 *)value);
619 }
620
621 #ifdef DEBUG
622 devdbg(dev, "info buffer (len: %d):", info_len);
623 for (i = 0; i < info_len; i += 12) {
624 u32 *tmp = (u32 *)((u8 *)infobuf + i);
625 devdbg(dev, "%08X:%08X:%08X",
626 cpu_to_be32(tmp[0]),
627 cpu_to_be32(tmp[1]),
628 cpu_to_be32(tmp[2]));
629 }
630 #endif
631
632 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
633 infobuf, info_len);
634 if (ret != 0)
635 devdbg(dev, "setting rndis config paramater failed, %d.", ret);
636
637 kfree(infobuf);
638 return ret;
639 }
640
641 static int rndis_set_config_parameter_str(struct usbnet *dev,
642 char *param, char *value)
643 {
644 return(rndis_set_config_parameter(dev, param, 2, value));
645 }
646
647 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
648 char *param, u32 value)
649 {
650 return(rndis_set_config_parameter(dev, param, 0, &value));
651 }*/
652
653
654 /*
655 * data conversion functions
656 */
657 static int level_to_qual(int level)
658 {
659 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
660 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
661 }
662
663
664 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
665 {
666 freq->e = 0;
667 freq->i = 0;
668 freq->flags = 0;
669
670 /* see comment in wireless.h above the "struct iw_freq"
671 * definition for an explanation of this if
672 * NOTE: 1000000 is due to the kHz
673 */
674 if (dsconfig > 1000000) {
675 freq->m = dsconfig / 10;
676 freq->e = 1;
677 } else
678 freq->m = dsconfig;
679
680 /* convert from kHz to Hz */
681 freq->e += 3;
682 }
683
684
685 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
686 {
687 if (freq->m < 1000 && freq->e == 0) {
688 if (freq->m >= 1 && freq->m <= 14)
689 *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
690 else
691 return -1;
692 } else {
693 int i;
694 *dsconfig = freq->m;
695 for (i = freq->e; i > 0; i--)
696 *dsconfig *= 10;
697 *dsconfig /= 1000;
698 }
699
700 return 0;
701 }
702
703
704 /*
705 * common functions
706 */
707 static int
708 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
709
710 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
711 {
712 int ret, len;
713
714 len = sizeof(*ssid);
715 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
716
717 if (ret != 0)
718 ssid->length = 0;
719
720 #ifdef DEBUG
721 {
722 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
723
724 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
725 tmp[le32_to_cpu(ssid->length)] = 0;
726 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
727 }
728 #endif
729 return ret;
730 }
731
732
733 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
734 {
735 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
736 int ret;
737
738 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
739 if (ret == 0) {
740 memcpy(&priv->essid, ssid, sizeof(priv->essid));
741 priv->radio_on = 1;
742 devdbg(usbdev, "set_essid: radio_on = 1");
743 }
744
745 return ret;
746 }
747
748
749 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
750 {
751 int ret, len;
752
753 len = ETH_ALEN;
754 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
755
756 if (ret != 0)
757 memset(bssid, 0, ETH_ALEN);
758
759 return ret;
760 }
761
762 static int get_association_info(struct usbnet *usbdev,
763 struct ndis_80211_assoc_info *info, int len)
764 {
765 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
766 info, &len);
767 }
768
769 static int is_associated(struct usbnet *usbdev)
770 {
771 u8 bssid[ETH_ALEN];
772 int ret;
773
774 ret = get_bssid(usbdev, bssid);
775
776 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
777 }
778
779
780 static int disassociate(struct usbnet *usbdev, int reset_ssid)
781 {
782 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
783 struct ndis_80211_ssid ssid;
784 int i, ret = 0;
785
786 if (priv->radio_on) {
787 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
788 if (ret == 0) {
789 priv->radio_on = 0;
790 devdbg(usbdev, "disassociate: radio_on = 0");
791
792 if (reset_ssid)
793 msleep(100);
794 }
795 }
796
797 /* disassociate causes radio to be turned off; if reset_ssid
798 * is given, set random ssid to enable radio */
799 if (reset_ssid) {
800 ssid.length = cpu_to_le32(sizeof(ssid.essid));
801 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
802 ssid.essid[0] = 0x1;
803 ssid.essid[1] = 0xff;
804 for (i = 2; i < sizeof(ssid.essid); i++)
805 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
806 ret = set_essid(usbdev, &ssid);
807 }
808 return ret;
809 }
810
811
812 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
813 {
814 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
815 __le32 tmp;
816 int auth_mode, ret;
817
818 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
819 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
820
821 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
822 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
823 auth_mode = ndis_80211_auth_wpa2;
824 else
825 auth_mode = ndis_80211_auth_wpa2_psk;
826 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
827 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
828 auth_mode = ndis_80211_auth_wpa;
829 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
830 auth_mode = ndis_80211_auth_wpa_psk;
831 else
832 auth_mode = ndis_80211_auth_wpa_none;
833 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
834 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
835 auth_mode = ndis_80211_auth_auto_switch;
836 else
837 auth_mode = ndis_80211_auth_shared;
838 } else
839 auth_mode = ndis_80211_auth_open;
840
841 tmp = cpu_to_le32(auth_mode);
842 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
843 sizeof(tmp));
844 if (ret != 0) {
845 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
846 return ret;
847 }
848
849 priv->wpa_version = wpa_version;
850 priv->wpa_authalg = authalg;
851 return 0;
852 }
853
854
855 static int set_priv_filter(struct usbnet *usbdev)
856 {
857 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
858 __le32 tmp;
859
860 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
861
862 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
863 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
864 tmp = cpu_to_le32(ndis_80211_priv_8021x_wep);
865 else
866 tmp = cpu_to_le32(ndis_80211_priv_accept_all);
867
868 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
869 sizeof(tmp));
870 }
871
872
873 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
874 {
875 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
876 __le32 tmp;
877 int encr_mode, ret;
878
879 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
880 pairwise,
881 groupwise);
882
883 if (pairwise & IW_AUTH_CIPHER_CCMP)
884 encr_mode = ndis_80211_encr_ccmp_enabled;
885 else if (pairwise & IW_AUTH_CIPHER_TKIP)
886 encr_mode = ndis_80211_encr_tkip_enabled;
887 else if (pairwise &
888 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
889 encr_mode = ndis_80211_encr_wep_enabled;
890 else if (groupwise & IW_AUTH_CIPHER_CCMP)
891 encr_mode = ndis_80211_encr_ccmp_enabled;
892 else if (groupwise & IW_AUTH_CIPHER_TKIP)
893 encr_mode = ndis_80211_encr_tkip_enabled;
894 else
895 encr_mode = ndis_80211_encr_disabled;
896
897 tmp = cpu_to_le32(encr_mode);
898 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
899 sizeof(tmp));
900 if (ret != 0) {
901 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
902 return ret;
903 }
904
905 priv->wpa_cipher_pair = pairwise;
906 priv->wpa_cipher_group = groupwise;
907 return 0;
908 }
909
910
911 static int set_assoc_params(struct usbnet *usbdev)
912 {
913 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
914
915 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
916 set_priv_filter(usbdev);
917 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
918
919 return 0;
920 }
921
922
923 static int set_infra_mode(struct usbnet *usbdev, int mode)
924 {
925 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
926 __le32 tmp;
927 int ret, i;
928
929 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
930
931 tmp = cpu_to_le32(mode);
932 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
933 sizeof(tmp));
934 if (ret != 0) {
935 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
936 return ret;
937 }
938
939 /* NDIS drivers clear keys when infrastructure mode is
940 * changed. But Linux tools assume otherwise. So set the
941 * keys */
942 if (priv->wpa_keymgmt == 0 ||
943 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
944 for (i = 0; i < 4; i++) {
945 if (priv->encr_key_len[i] > 0)
946 add_wep_key(usbdev, priv->encr_keys[i],
947 priv->encr_key_len[i], i);
948 }
949 }
950
951 priv->infra_mode = mode;
952 return 0;
953 }
954
955
956 static void set_default_iw_params(struct usbnet *usbdev)
957 {
958 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
959
960 priv->wpa_keymgmt = 0;
961 priv->wpa_version = 0;
962
963 set_infra_mode(usbdev, ndis_80211_infra_infra);
964 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
965 IW_AUTH_ALG_OPEN_SYSTEM);
966 set_priv_filter(usbdev);
967 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
968 }
969
970
971 static int deauthenticate(struct usbnet *usbdev)
972 {
973 int ret;
974
975 ret = disassociate(usbdev, 1);
976 set_default_iw_params(usbdev);
977 return ret;
978 }
979
980
981 /* index must be 0 - N, as per NDIS */
982 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
983 {
984 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
985 struct ndis_80211_wep_key ndis_key;
986 int ret;
987
988 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
989 return -EINVAL;
990
991 memset(&ndis_key, 0, sizeof(ndis_key));
992
993 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
994 ndis_key.length = cpu_to_le32(key_len);
995 ndis_key.index = cpu_to_le32(index);
996 memcpy(&ndis_key.material, key, key_len);
997
998 if (index == priv->encr_tx_key_index) {
999 ndis_key.index |= cpu_to_le32(1 << 31);
1000 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1001 IW_AUTH_CIPHER_NONE);
1002 if (ret)
1003 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1004 ret);
1005 }
1006
1007 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1008 sizeof(ndis_key));
1009 if (ret != 0) {
1010 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1011 index+1, ret);
1012 return ret;
1013 }
1014
1015 priv->encr_key_len[index] = key_len;
1016 memcpy(&priv->encr_keys[index], key, key_len);
1017
1018 return 0;
1019 }
1020
1021
1022 /* remove_key is for both wep and wpa */
1023 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1024 {
1025 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1026 struct ndis_80211_remove_key remove_key;
1027 __le32 keyindex;
1028 int ret;
1029
1030 if (priv->encr_key_len[index] == 0)
1031 return 0;
1032
1033 priv->encr_key_len[index] = 0;
1034 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1035
1036 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
1037 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
1038 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
1039 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
1040 remove_key.size = cpu_to_le32(sizeof(remove_key));
1041 remove_key.index = cpu_to_le32(index);
1042 if (bssid) {
1043 /* pairwise key */
1044 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
1045 remove_key.index |= cpu_to_le32(1 << 30);
1046 memcpy(remove_key.bssid, bssid,
1047 sizeof(remove_key.bssid));
1048 } else
1049 memset(remove_key.bssid, 0xff,
1050 sizeof(remove_key.bssid));
1051
1052 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1053 sizeof(remove_key));
1054 if (ret != 0)
1055 return ret;
1056 } else {
1057 keyindex = cpu_to_le32(index);
1058 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1059 sizeof(keyindex));
1060 if (ret != 0) {
1061 devwarn(usbdev,
1062 "removing encryption key %d failed (%08X)",
1063 index, ret);
1064 return ret;
1065 }
1066 }
1067
1068 /* if it is transmit key, disable encryption */
1069 if (index == priv->encr_tx_key_index)
1070 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1071
1072 return 0;
1073 }
1074
1075
1076 static void set_multicast_list(struct usbnet *usbdev)
1077 {
1078 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1079 struct dev_mc_list *mclist;
1080 __le32 filter;
1081 int ret, i, size;
1082 char *buf;
1083
1084 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1085
1086 if (usbdev->net->flags & IFF_PROMISC) {
1087 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1088 RNDIS_PACKET_TYPE_ALL_LOCAL;
1089 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1090 usbdev->net->mc_count > priv->multicast_size) {
1091 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1092 } else if (usbdev->net->mc_count > 0) {
1093 size = min(priv->multicast_size, usbdev->net->mc_count);
1094 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1095 if (!buf) {
1096 devwarn(usbdev,
1097 "couldn't alloc %d bytes of memory",
1098 size * ETH_ALEN);
1099 return;
1100 }
1101
1102 mclist = usbdev->net->mc_list;
1103 for (i = 0; i < size && mclist; mclist = mclist->next) {
1104 if (mclist->dmi_addrlen != ETH_ALEN)
1105 continue;
1106
1107 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1108 i++;
1109 }
1110
1111 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1112 i * ETH_ALEN);
1113 if (ret == 0 && i > 0)
1114 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1115 else
1116 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1117
1118 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1119 i, priv->multicast_size, ret);
1120
1121 kfree(buf);
1122 }
1123
1124 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1125 sizeof(filter));
1126 if (ret < 0) {
1127 devwarn(usbdev, "couldn't set packet filter: %08x",
1128 le32_to_cpu(filter));
1129 }
1130
1131 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1132 le32_to_cpu(filter), ret);
1133 }
1134
1135
1136 /*
1137 * cfg80211 ops
1138 */
1139 static int rndis_change_virtual_intf(struct wiphy *wiphy, int ifindex,
1140 enum nl80211_iftype type, u32 *flags,
1141 struct vif_params *params)
1142 {
1143 struct net_device *dev;
1144 struct usbnet *usbdev;
1145 int mode;
1146
1147 /* we're under RTNL */
1148 dev = __dev_get_by_index(&init_net, ifindex);
1149 if (!dev)
1150 return -ENODEV;
1151 usbdev = netdev_priv(dev);
1152
1153 switch (type) {
1154 case NL80211_IFTYPE_ADHOC:
1155 mode = ndis_80211_infra_adhoc;
1156 break;
1157 case NL80211_IFTYPE_STATION:
1158 mode = ndis_80211_infra_infra;
1159 break;
1160 default:
1161 return -EINVAL;
1162 }
1163
1164 return set_infra_mode(usbdev, mode);
1165 }
1166
1167 /*
1168 * wireless extension handlers
1169 */
1170
1171 static int rndis_iw_commit(struct net_device *dev,
1172 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1173 {
1174 /* dummy op */
1175 return 0;
1176 }
1177
1178
1179 static int rndis_iw_get_range(struct net_device *dev,
1180 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1181 {
1182 struct iw_range *range = (struct iw_range *)extra;
1183 struct usbnet *usbdev = netdev_priv(dev);
1184 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1185 int len, ret, i, j, num, has_80211g_rates;
1186 u8 rates[8];
1187 __le32 tx_power;
1188
1189 devdbg(usbdev, "SIOCGIWRANGE");
1190
1191 /* clear iw_range struct */
1192 memset(range, 0, sizeof(*range));
1193 wrqu->data.length = sizeof(*range);
1194
1195 range->txpower_capa = IW_TXPOW_MWATT;
1196 range->num_txpower = 1;
1197 if (priv->caps & CAP_SUPPORT_TXPOWER) {
1198 len = sizeof(tx_power);
1199 ret = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
1200 &tx_power, &len);
1201 if (ret == 0 && le32_to_cpu(tx_power) != 0xFF)
1202 range->txpower[0] = le32_to_cpu(tx_power);
1203 else
1204 range->txpower[0] = get_bcm4320_power(priv);
1205 } else
1206 range->txpower[0] = get_bcm4320_power(priv);
1207
1208 len = sizeof(rates);
1209 ret = rndis_query_oid(usbdev, OID_802_11_SUPPORTED_RATES, &rates,
1210 &len);
1211 has_80211g_rates = 0;
1212 if (ret == 0) {
1213 j = 0;
1214 for (i = 0; i < len; i++) {
1215 if (rates[i] == 0)
1216 break;
1217 range->bitrate[j] = (rates[i] & 0x7f) * 500000;
1218 /* check for non 802.11b rates */
1219 if (range->bitrate[j] == 6000000 ||
1220 range->bitrate[j] == 9000000 ||
1221 (range->bitrate[j] >= 12000000 &&
1222 range->bitrate[j] != 22000000))
1223 has_80211g_rates = 1;
1224 j++;
1225 }
1226 range->num_bitrates = j;
1227 } else
1228 range->num_bitrates = 0;
1229
1230 /* fill in 802.11g rates */
1231 if (has_80211g_rates) {
1232 num = range->num_bitrates;
1233 for (i = 4; i < ARRAY_SIZE(rndis_rates); i++) {
1234 for (j = 0; j < num; j++) {
1235 if (range->bitrate[j] ==
1236 rndis_rates[i].bitrate * 100000)
1237 break;
1238 }
1239 if (j == num)
1240 range->bitrate[range->num_bitrates++] =
1241 rndis_rates[i].bitrate * 100000;
1242 if (range->num_bitrates == IW_MAX_BITRATES)
1243 break;
1244 }
1245
1246 /* estimated max real througput in bps */
1247 range->throughput = 54 * 1000 * 1000 / 2;
1248
1249 /* ~35% more with afterburner */
1250 if (priv->param_afterburner)
1251 range->throughput = range->throughput / 100 * 135;
1252 } else {
1253 /* estimated max real througput in bps */
1254 range->throughput = 11 * 1000 * 1000 / 2;
1255 }
1256
1257 range->num_channels = 14;
1258
1259 for (i = 0; (i < 14) && (i < IW_MAX_FREQUENCIES); i++) {
1260 range->freq[i].i = i + 1;
1261 range->freq[i].m = ieee80211_dsss_chan_to_freq(i + 1) * 100000;
1262 range->freq[i].e = 1;
1263 }
1264 range->num_frequency = i;
1265
1266 range->min_rts = 0;
1267 range->max_rts = 2347;
1268 range->min_frag = 256;
1269 range->max_frag = 2346;
1270
1271 range->max_qual.qual = 100;
1272 range->max_qual.level = 154;
1273 range->max_qual.updated = IW_QUAL_QUAL_UPDATED
1274 | IW_QUAL_LEVEL_UPDATED
1275 | IW_QUAL_NOISE_INVALID;
1276
1277 range->we_version_compiled = WIRELESS_EXT;
1278 range->we_version_source = WIRELESS_EXT;
1279
1280 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
1281 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
1282 return 0;
1283 }
1284
1285
1286 static int rndis_iw_set_essid(struct net_device *dev,
1287 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1288 {
1289 struct ndis_80211_ssid ssid;
1290 int length = wrqu->essid.length;
1291 struct usbnet *usbdev = netdev_priv(dev);
1292
1293 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1294 wrqu->essid.flags, wrqu->essid.length, essid);
1295
1296 if (length > NDIS_802_11_LENGTH_SSID)
1297 length = NDIS_802_11_LENGTH_SSID;
1298
1299 ssid.length = cpu_to_le32(length);
1300 if (length > 0)
1301 memcpy(ssid.essid, essid, length);
1302 else
1303 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1304
1305 set_assoc_params(usbdev);
1306
1307 if (!wrqu->essid.flags || length == 0)
1308 return disassociate(usbdev, 1);
1309 else
1310 return set_essid(usbdev, &ssid);
1311 }
1312
1313
1314 static int rndis_iw_get_essid(struct net_device *dev,
1315 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1316 {
1317 struct ndis_80211_ssid ssid;
1318 struct usbnet *usbdev = netdev_priv(dev);
1319 int ret;
1320
1321 ret = get_essid(usbdev, &ssid);
1322
1323 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1324 wrqu->essid.flags = 1;
1325 wrqu->essid.length = le32_to_cpu(ssid.length);
1326 memcpy(essid, ssid.essid, wrqu->essid.length);
1327 essid[wrqu->essid.length] = 0;
1328 } else {
1329 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1330 wrqu->essid.flags = 0;
1331 wrqu->essid.length = 0;
1332 }
1333 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1334 return ret;
1335 }
1336
1337
1338 static int rndis_iw_get_bssid(struct net_device *dev,
1339 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1340 {
1341 struct usbnet *usbdev = netdev_priv(dev);
1342 unsigned char bssid[ETH_ALEN];
1343 int ret;
1344
1345 ret = get_bssid(usbdev, bssid);
1346
1347 if (ret == 0)
1348 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1349 else
1350 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1351
1352 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1353 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1354
1355 return ret;
1356 }
1357
1358
1359 static int rndis_iw_set_bssid(struct net_device *dev,
1360 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1361 {
1362 struct usbnet *usbdev = netdev_priv(dev);
1363 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1364 int ret;
1365
1366 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1367
1368 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1369
1370 /* user apps may set ap's mac address, which is not required;
1371 * they may fail to work if this function fails, so return
1372 * success */
1373 if (ret)
1374 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1375
1376 return 0;
1377 }
1378
1379
1380 static int rndis_iw_set_auth(struct net_device *dev,
1381 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1382 {
1383 struct iw_param *p = &wrqu->param;
1384 struct usbnet *usbdev = netdev_priv(dev);
1385 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1386 int ret = -ENOTSUPP;
1387
1388 switch (p->flags & IW_AUTH_INDEX) {
1389 case IW_AUTH_WPA_VERSION:
1390 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1391 priv->wpa_version = p->value;
1392 ret = 0;
1393 break;
1394
1395 case IW_AUTH_CIPHER_PAIRWISE:
1396 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1397 priv->wpa_cipher_pair = p->value;
1398 ret = 0;
1399 break;
1400
1401 case IW_AUTH_CIPHER_GROUP:
1402 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1403 priv->wpa_cipher_group = p->value;
1404 ret = 0;
1405 break;
1406
1407 case IW_AUTH_KEY_MGMT:
1408 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1409 priv->wpa_keymgmt = p->value;
1410 ret = 0;
1411 break;
1412
1413 case IW_AUTH_TKIP_COUNTERMEASURES:
1414 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1415 p->value);
1416 ret = 0;
1417 break;
1418
1419 case IW_AUTH_DROP_UNENCRYPTED:
1420 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1421 ret = 0;
1422 break;
1423
1424 case IW_AUTH_80211_AUTH_ALG:
1425 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1426 priv->wpa_authalg = p->value;
1427 ret = 0;
1428 break;
1429
1430 case IW_AUTH_WPA_ENABLED:
1431 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1432 if (wrqu->param.value)
1433 deauthenticate(usbdev);
1434 ret = 0;
1435 break;
1436
1437 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1438 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1439 p->value);
1440 ret = 0;
1441 break;
1442
1443 case IW_AUTH_ROAMING_CONTROL:
1444 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1445 ret = 0;
1446 break;
1447
1448 case IW_AUTH_PRIVACY_INVOKED:
1449 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1450 wrqu->param.flags & IW_AUTH_INDEX);
1451 return -EOPNOTSUPP;
1452
1453 default:
1454 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1455 p->flags & IW_AUTH_INDEX, p->value);
1456 }
1457 return ret;
1458 }
1459
1460
1461 static int rndis_iw_get_auth(struct net_device *dev,
1462 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1463 {
1464 struct iw_param *p = &wrqu->param;
1465 struct usbnet *usbdev = netdev_priv(dev);
1466 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1467
1468 switch (p->flags & IW_AUTH_INDEX) {
1469 case IW_AUTH_WPA_VERSION:
1470 p->value = priv->wpa_version;
1471 break;
1472 case IW_AUTH_CIPHER_PAIRWISE:
1473 p->value = priv->wpa_cipher_pair;
1474 break;
1475 case IW_AUTH_CIPHER_GROUP:
1476 p->value = priv->wpa_cipher_group;
1477 break;
1478 case IW_AUTH_KEY_MGMT:
1479 p->value = priv->wpa_keymgmt;
1480 break;
1481 case IW_AUTH_80211_AUTH_ALG:
1482 p->value = priv->wpa_authalg;
1483 break;
1484 default:
1485 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1486 wrqu->param.flags & IW_AUTH_INDEX);
1487 return -EOPNOTSUPP;
1488 }
1489 return 0;
1490 }
1491
1492
1493 static int rndis_iw_set_encode(struct net_device *dev,
1494 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1495 {
1496 struct usbnet *usbdev = netdev_priv(dev);
1497 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1498 int ret, index, key_len;
1499 u8 *key;
1500
1501 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1502
1503 /* iwconfig gives index as 1 - N */
1504 if (index > 0)
1505 index--;
1506 else
1507 index = priv->encr_tx_key_index;
1508
1509 if (index < 0 || index >= 4) {
1510 devwarn(usbdev, "encryption index out of range (%u)", index);
1511 return -EINVAL;
1512 }
1513
1514 /* remove key if disabled */
1515 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1516 if (remove_key(usbdev, index, NULL))
1517 return -EINVAL;
1518 else
1519 return 0;
1520 }
1521
1522 /* global encryption state (for all keys) */
1523 if (wrqu->data.flags & IW_ENCODE_OPEN)
1524 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1525 IW_AUTH_ALG_OPEN_SYSTEM);
1526 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1527 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1528 IW_AUTH_ALG_SHARED_KEY);
1529 if (ret != 0)
1530 return ret;
1531
1532 if (wrqu->data.length > 0) {
1533 key_len = wrqu->data.length;
1534 key = extra;
1535 } else {
1536 /* must be set as tx key */
1537 if (priv->encr_key_len[index] == 0)
1538 return -EINVAL;
1539 key_len = priv->encr_key_len[index];
1540 key = priv->encr_keys[index];
1541 priv->encr_tx_key_index = index;
1542 }
1543
1544 if (add_wep_key(usbdev, key, key_len, index) != 0)
1545 return -EINVAL;
1546
1547 if (index == priv->encr_tx_key_index)
1548 /* ndis drivers want essid to be set after setting encr */
1549 set_essid(usbdev, &priv->essid);
1550
1551 return 0;
1552 }
1553
1554
1555 static int rndis_iw_set_encode_ext(struct net_device *dev,
1556 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1557 {
1558 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1559 struct usbnet *usbdev = netdev_priv(dev);
1560 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1561 struct ndis_80211_key ndis_key;
1562 int keyidx, ret;
1563 u8 *addr;
1564
1565 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1566
1567 /* iwconfig gives index as 1 - N */
1568 if (keyidx)
1569 keyidx--;
1570 else
1571 keyidx = priv->encr_tx_key_index;
1572
1573 if (keyidx < 0 || keyidx >= 4)
1574 return -EINVAL;
1575
1576 if (ext->alg == WPA_ALG_WEP) {
1577 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1578 priv->encr_tx_key_index = keyidx;
1579 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1580 }
1581
1582 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1583 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1584 return remove_key(usbdev, keyidx, NULL);
1585
1586 if (ext->key_len > sizeof(ndis_key.material))
1587 return -1;
1588
1589 memset(&ndis_key, 0, sizeof(ndis_key));
1590
1591 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1592 sizeof(ndis_key.material) + ext->key_len);
1593 ndis_key.length = cpu_to_le32(ext->key_len);
1594 ndis_key.index = cpu_to_le32(keyidx);
1595
1596 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
1597 memcpy(ndis_key.rsc, ext->rx_seq, 6);
1598 ndis_key.index |= cpu_to_le32(1 << 29);
1599 }
1600
1601 addr = ext->addr.sa_data;
1602 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
1603 /* group key */
1604 if (priv->infra_mode == ndis_80211_infra_adhoc)
1605 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1606 else
1607 get_bssid(usbdev, ndis_key.bssid);
1608 } else {
1609 /* pairwise key */
1610 ndis_key.index |= cpu_to_le32(1 << 30);
1611 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1612 }
1613
1614 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1615 ndis_key.index |= cpu_to_le32(1 << 31);
1616
1617 if (ext->alg == IW_ENCODE_ALG_TKIP && ext->key_len == 32) {
1618 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1619 * different order than NDIS spec, so swap the order here. */
1620 memcpy(ndis_key.material, ext->key, 16);
1621 memcpy(ndis_key.material + 16, ext->key + 24, 8);
1622 memcpy(ndis_key.material + 24, ext->key + 16, 8);
1623 } else
1624 memcpy(ndis_key.material, ext->key, ext->key_len);
1625
1626 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1627 le32_to_cpu(ndis_key.size));
1628 devdbg(usbdev, "SIOCSIWENCODEEXT: OID_802_11_ADD_KEY -> %08X", ret);
1629 if (ret != 0)
1630 return ret;
1631
1632 priv->encr_key_len[keyidx] = ext->key_len;
1633 memcpy(&priv->encr_keys[keyidx], ndis_key.material, ext->key_len);
1634 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1635 priv->encr_tx_key_index = keyidx;
1636
1637 return 0;
1638 }
1639
1640
1641 static int rndis_iw_set_scan(struct net_device *dev,
1642 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1643 {
1644 struct usbnet *usbdev = netdev_priv(dev);
1645 union iwreq_data evt;
1646 int ret = -EINVAL;
1647 __le32 tmp;
1648
1649 devdbg(usbdev, "SIOCSIWSCAN");
1650
1651 if (wrqu->data.flags == 0) {
1652 tmp = cpu_to_le32(1);
1653 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1654 sizeof(tmp));
1655 evt.data.flags = 0;
1656 evt.data.length = 0;
1657 wireless_send_event(dev, SIOCGIWSCAN, &evt, NULL);
1658 }
1659 return ret;
1660 }
1661
1662
1663 static char *rndis_translate_scan(struct net_device *dev,
1664 struct iw_request_info *info, char *cev,
1665 char *end_buf,
1666 struct ndis_80211_bssid_ex *bssid)
1667 {
1668 struct usbnet *usbdev = netdev_priv(dev);
1669 u8 *ie;
1670 char *current_val;
1671 int bssid_len, ie_len, i;
1672 u32 beacon, atim;
1673 struct iw_event iwe;
1674 unsigned char sbuf[32];
1675
1676 bssid_len = le32_to_cpu(bssid->length);
1677
1678 devdbg(usbdev, "BSSID %pM", bssid->mac);
1679 iwe.cmd = SIOCGIWAP;
1680 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1681 memcpy(iwe.u.ap_addr.sa_data, bssid->mac, ETH_ALEN);
1682 cev = iwe_stream_add_event(info, cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1683
1684 devdbg(usbdev, "SSID(%d) %s", le32_to_cpu(bssid->ssid.length),
1685 bssid->ssid.essid);
1686 iwe.cmd = SIOCGIWESSID;
1687 iwe.u.essid.length = le32_to_cpu(bssid->ssid.length);
1688 iwe.u.essid.flags = 1;
1689 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, bssid->ssid.essid);
1690
1691 devdbg(usbdev, "MODE %d", le32_to_cpu(bssid->net_infra));
1692 iwe.cmd = SIOCGIWMODE;
1693 switch (le32_to_cpu(bssid->net_infra)) {
1694 case ndis_80211_infra_adhoc:
1695 iwe.u.mode = IW_MODE_ADHOC;
1696 break;
1697 case ndis_80211_infra_infra:
1698 iwe.u.mode = IW_MODE_INFRA;
1699 break;
1700 /*case ndis_80211_infra_auto_unknown:*/
1701 default:
1702 iwe.u.mode = IW_MODE_AUTO;
1703 break;
1704 }
1705 cev = iwe_stream_add_event(info, cev, end_buf, &iwe, IW_EV_UINT_LEN);
1706
1707 devdbg(usbdev, "FREQ %d kHz", le32_to_cpu(bssid->config.ds_config));
1708 iwe.cmd = SIOCGIWFREQ;
1709 dsconfig_to_freq(le32_to_cpu(bssid->config.ds_config), &iwe.u.freq);
1710 cev = iwe_stream_add_event(info, cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1711
1712 devdbg(usbdev, "QUAL %d", le32_to_cpu(bssid->rssi));
1713 iwe.cmd = IWEVQUAL;
1714 iwe.u.qual.qual = level_to_qual(le32_to_cpu(bssid->rssi));
1715 iwe.u.qual.level = le32_to_cpu(bssid->rssi);
1716 iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED
1717 | IW_QUAL_LEVEL_UPDATED
1718 | IW_QUAL_NOISE_INVALID;
1719 cev = iwe_stream_add_event(info, cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1720
1721 devdbg(usbdev, "ENCODE %d", le32_to_cpu(bssid->privacy));
1722 iwe.cmd = SIOCGIWENCODE;
1723 iwe.u.data.length = 0;
1724 if (le32_to_cpu(bssid->privacy) == ndis_80211_priv_accept_all)
1725 iwe.u.data.flags = IW_ENCODE_DISABLED;
1726 else
1727 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1728
1729 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL);
1730
1731 devdbg(usbdev, "RATES:");
1732 current_val = cev + iwe_stream_lcp_len(info);
1733 iwe.cmd = SIOCGIWRATE;
1734 for (i = 0; i < sizeof(bssid->rates); i++) {
1735 if (bssid->rates[i] & 0x7f) {
1736 iwe.u.bitrate.value =
1737 ((bssid->rates[i] & 0x7f) *
1738 500000);
1739 devdbg(usbdev, " %d", iwe.u.bitrate.value);
1740 current_val = iwe_stream_add_value(info, cev,
1741 current_val, end_buf, &iwe,
1742 IW_EV_PARAM_LEN);
1743 }
1744 }
1745
1746 if ((current_val - cev) > iwe_stream_lcp_len(info))
1747 cev = current_val;
1748
1749 beacon = le32_to_cpu(bssid->config.beacon_period);
1750 devdbg(usbdev, "BCN_INT %d", beacon);
1751 iwe.cmd = IWEVCUSTOM;
1752 snprintf(sbuf, sizeof(sbuf), "bcn_int=%d", beacon);
1753 iwe.u.data.length = strlen(sbuf);
1754 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, sbuf);
1755
1756 atim = le32_to_cpu(bssid->config.atim_window);
1757 devdbg(usbdev, "ATIM %d", atim);
1758 iwe.cmd = IWEVCUSTOM;
1759 snprintf(sbuf, sizeof(sbuf), "atim=%u", atim);
1760 iwe.u.data.length = strlen(sbuf);
1761 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, sbuf);
1762
1763 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1764 ie_len = min(bssid_len - (int)sizeof(*bssid),
1765 (int)le32_to_cpu(bssid->ie_length));
1766 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1767 while (ie_len >= 2 && 2 + ie[1] <= ie_len) {
1768 if ((ie[0] == WLAN_EID_GENERIC && ie[1] >= 4 &&
1769 memcmp(ie + 2, "\x00\x50\xf2\x01", 4) == 0) ||
1770 ie[0] == WLAN_EID_RSN) {
1771 devdbg(usbdev, "IE: WPA%d",
1772 (ie[0] == WLAN_EID_RSN) ? 2 : 1);
1773 iwe.cmd = IWEVGENIE;
1774 /* arbitrary cut-off at 64 */
1775 iwe.u.data.length = min(ie[1] + 2, 64);
1776 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, ie);
1777 }
1778
1779 ie_len -= 2 + ie[1];
1780 ie += 2 + ie[1];
1781 }
1782
1783 return cev;
1784 }
1785
1786
1787 static int rndis_iw_get_scan(struct net_device *dev,
1788 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1789 {
1790 struct usbnet *usbdev = netdev_priv(dev);
1791 void *buf = NULL;
1792 char *cev = extra;
1793 struct ndis_80211_bssid_list_ex *bssid_list;
1794 struct ndis_80211_bssid_ex *bssid;
1795 int ret = -EINVAL, len, count, bssid_len;
1796
1797 devdbg(usbdev, "SIOCGIWSCAN");
1798
1799 len = CONTROL_BUFFER_SIZE;
1800 buf = kmalloc(len, GFP_KERNEL);
1801 if (!buf) {
1802 ret = -ENOMEM;
1803 goto out;
1804 }
1805
1806 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1807
1808 if (ret != 0)
1809 goto out;
1810
1811 bssid_list = buf;
1812 bssid = bssid_list->bssid;
1813 bssid_len = le32_to_cpu(bssid->length);
1814 count = le32_to_cpu(bssid_list->num_items);
1815 devdbg(usbdev, "SIOCGIWSCAN: %d BSSIDs found", count);
1816
1817 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1818 cev = rndis_translate_scan(dev, info, cev,
1819 extra + IW_SCAN_MAX_DATA, bssid);
1820 bssid = (void *)bssid + bssid_len;
1821 bssid_len = le32_to_cpu(bssid->length);
1822 count--;
1823 }
1824
1825 out:
1826 wrqu->data.length = cev - extra;
1827 wrqu->data.flags = 0;
1828 kfree(buf);
1829 return ret;
1830 }
1831
1832
1833 static int rndis_iw_set_genie(struct net_device *dev,
1834 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1835 {
1836 struct usbnet *usbdev = netdev_priv(dev);
1837 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1838 int ret = 0;
1839
1840 #ifdef DEBUG
1841 int j;
1842 u8 *gie = extra;
1843 for (j = 0; j < wrqu->data.length; j += 8)
1844 devdbg(usbdev,
1845 "SIOCSIWGENIE %04x - "
1846 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1847 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1848 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1849 #endif
1850 /* clear existing IEs */
1851 if (priv->wpa_ie_len) {
1852 kfree(priv->wpa_ie);
1853 priv->wpa_ie_len = 0;
1854 }
1855
1856 /* set new IEs */
1857 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1858 if (priv->wpa_ie) {
1859 priv->wpa_ie_len = wrqu->data.length;
1860 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1861 } else
1862 ret = -ENOMEM;
1863 return ret;
1864 }
1865
1866
1867 static int rndis_iw_get_genie(struct net_device *dev,
1868 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1869 {
1870 struct usbnet *usbdev = netdev_priv(dev);
1871 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1872
1873 devdbg(usbdev, "SIOCGIWGENIE");
1874
1875 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1876 wrqu->data.length = 0;
1877 return 0;
1878 }
1879
1880 if (wrqu->data.length < priv->wpa_ie_len)
1881 return -E2BIG;
1882
1883 wrqu->data.length = priv->wpa_ie_len;
1884 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1885
1886 return 0;
1887 }
1888
1889
1890 static int rndis_iw_set_rts(struct net_device *dev,
1891 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1892 {
1893 struct usbnet *usbdev = netdev_priv(dev);
1894 __le32 tmp;
1895 devdbg(usbdev, "SIOCSIWRTS");
1896
1897 tmp = cpu_to_le32(wrqu->rts.value);
1898 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1899 sizeof(tmp));
1900 }
1901
1902
1903 static int rndis_iw_get_rts(struct net_device *dev,
1904 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1905 {
1906 struct usbnet *usbdev = netdev_priv(dev);
1907 __le32 tmp;
1908 int len, ret;
1909
1910 len = sizeof(tmp);
1911 ret = rndis_query_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp, &len);
1912 if (ret == 0) {
1913 wrqu->rts.value = le32_to_cpu(tmp);
1914 wrqu->rts.flags = 1;
1915 wrqu->rts.disabled = 0;
1916 }
1917
1918 devdbg(usbdev, "SIOCGIWRTS: %d", wrqu->rts.value);
1919
1920 return ret;
1921 }
1922
1923
1924 static int rndis_iw_set_frag(struct net_device *dev,
1925 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1926 {
1927 struct usbnet *usbdev = netdev_priv(dev);
1928 __le32 tmp;
1929
1930 devdbg(usbdev, "SIOCSIWFRAG");
1931
1932 tmp = cpu_to_le32(wrqu->frag.value);
1933 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1934 sizeof(tmp));
1935 }
1936
1937
1938 static int rndis_iw_get_frag(struct net_device *dev,
1939 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1940 {
1941 struct usbnet *usbdev = netdev_priv(dev);
1942 __le32 tmp;
1943 int len, ret;
1944
1945 len = sizeof(tmp);
1946 ret = rndis_query_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1947 &len);
1948 if (ret == 0) {
1949 wrqu->frag.value = le32_to_cpu(tmp);
1950 wrqu->frag.flags = 1;
1951 wrqu->frag.disabled = 0;
1952 }
1953 devdbg(usbdev, "SIOCGIWFRAG: %d", wrqu->frag.value);
1954 return ret;
1955 }
1956
1957
1958 static int rndis_iw_set_nick(struct net_device *dev,
1959 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1960 {
1961 struct usbnet *usbdev = netdev_priv(dev);
1962 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1963
1964 devdbg(usbdev, "SIOCSIWNICK");
1965
1966 priv->nick_len = wrqu->data.length;
1967 if (priv->nick_len > 32)
1968 priv->nick_len = 32;
1969
1970 memcpy(priv->nick, extra, priv->nick_len);
1971 return 0;
1972 }
1973
1974
1975 static int rndis_iw_get_nick(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 rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1980
1981 wrqu->data.flags = 1;
1982 wrqu->data.length = priv->nick_len;
1983 memcpy(extra, priv->nick, priv->nick_len);
1984
1985 devdbg(usbdev, "SIOCGIWNICK: '%s'", priv->nick);
1986
1987 return 0;
1988 }
1989
1990
1991 static int rndis_iw_set_freq(struct net_device *dev,
1992 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1993 {
1994 struct usbnet *usbdev = netdev_priv(dev);
1995 struct ndis_80211_conf config;
1996 unsigned int dsconfig;
1997 int len, ret;
1998
1999 /* this OID is valid only when not associated */
2000 if (is_associated(usbdev))
2001 return 0;
2002
2003 dsconfig = 0;
2004 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
2005 return -EINVAL;
2006
2007 len = sizeof(config);
2008 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2009 if (ret != 0) {
2010 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
2011 return 0;
2012 }
2013
2014 config.ds_config = cpu_to_le32(dsconfig);
2015
2016 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
2017 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
2018 sizeof(config));
2019 }
2020
2021
2022 static int rndis_iw_get_freq(struct net_device *dev,
2023 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2024 {
2025 struct usbnet *usbdev = netdev_priv(dev);
2026 struct ndis_80211_conf config;
2027 int len, ret;
2028
2029 len = sizeof(config);
2030 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2031 if (ret == 0)
2032 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
2033
2034 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
2035 return ret;
2036 }
2037
2038
2039 static int rndis_iw_get_txpower(struct net_device *dev,
2040 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2041 {
2042 struct usbnet *usbdev = netdev_priv(dev);
2043 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2044 __le32 tx_power;
2045 int ret = 0, len;
2046
2047 if (priv->radio_on) {
2048 if (priv->caps & CAP_SUPPORT_TXPOWER) {
2049 len = sizeof(tx_power);
2050 ret = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
2051 &tx_power, &len);
2052 if (ret != 0)
2053 return ret;
2054 } else
2055 /* fake incase not supported */
2056 tx_power = cpu_to_le32(get_bcm4320_power(priv));
2057
2058 wrqu->txpower.flags = IW_TXPOW_MWATT;
2059 wrqu->txpower.value = le32_to_cpu(tx_power);
2060 wrqu->txpower.disabled = 0;
2061 } else {
2062 wrqu->txpower.flags = IW_TXPOW_MWATT;
2063 wrqu->txpower.value = 0;
2064 wrqu->txpower.disabled = 1;
2065 }
2066
2067 devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
2068
2069 return ret;
2070 }
2071
2072
2073 static int rndis_iw_set_txpower(struct net_device *dev,
2074 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2075 {
2076 struct usbnet *usbdev = netdev_priv(dev);
2077 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2078 __le32 tx_power = 0;
2079 int ret = 0;
2080
2081 if (!wrqu->txpower.disabled) {
2082 if (wrqu->txpower.flags == IW_TXPOW_MWATT)
2083 tx_power = cpu_to_le32(wrqu->txpower.value);
2084 else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
2085 if (wrqu->txpower.value > 20)
2086 tx_power = cpu_to_le32(128);
2087 else if (wrqu->txpower.value < -43)
2088 tx_power = cpu_to_le32(127);
2089 else {
2090 signed char tmp;
2091 tmp = wrqu->txpower.value;
2092 tmp = -12 - tmp;
2093 tmp <<= 2;
2094 tx_power = cpu_to_le32((unsigned char)tmp);
2095 }
2096 }
2097 }
2098
2099 devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
2100
2101 if (le32_to_cpu(tx_power) != 0) {
2102 if (priv->caps & CAP_SUPPORT_TXPOWER) {
2103 /* turn radio on first */
2104 if (!priv->radio_on)
2105 disassociate(usbdev, 1);
2106
2107 ret = rndis_set_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
2108 &tx_power, sizeof(tx_power));
2109 if (ret != 0)
2110 ret = -EOPNOTSUPP;
2111 return ret;
2112 } else {
2113 /* txpower unsupported, just turn radio on */
2114 if (!priv->radio_on)
2115 return disassociate(usbdev, 1);
2116 return 0; /* all ready on */
2117 }
2118 }
2119
2120 /* tx_power == 0, turn off radio */
2121 return disassociate(usbdev, 0);
2122 }
2123
2124
2125 static int rndis_iw_get_rate(struct net_device *dev,
2126 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2127 {
2128 struct usbnet *usbdev = netdev_priv(dev);
2129 __le32 tmp;
2130 int ret, len;
2131
2132 len = sizeof(tmp);
2133 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
2134 if (ret == 0) {
2135 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
2136 wrqu->bitrate.disabled = 0;
2137 wrqu->bitrate.flags = 1;
2138 }
2139 return ret;
2140 }
2141
2142
2143 static int rndis_iw_set_mlme(struct net_device *dev,
2144 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2145 {
2146 struct usbnet *usbdev = netdev_priv(dev);
2147 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2148 struct iw_mlme *mlme = (struct iw_mlme *)extra;
2149 unsigned char bssid[ETH_ALEN];
2150
2151 get_bssid(usbdev, bssid);
2152
2153 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
2154 return -EINVAL;
2155
2156 switch (mlme->cmd) {
2157 case IW_MLME_DEAUTH:
2158 return deauthenticate(usbdev);
2159 case IW_MLME_DISASSOC:
2160 return disassociate(usbdev, priv->radio_on);
2161 default:
2162 return -EOPNOTSUPP;
2163 }
2164
2165 return 0;
2166 }
2167
2168
2169 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
2170 {
2171 struct usbnet *usbdev = netdev_priv(dev);
2172 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2173 unsigned long flags;
2174
2175 spin_lock_irqsave(&priv->stats_lock, flags);
2176 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
2177 spin_unlock_irqrestore(&priv->stats_lock, flags);
2178
2179 return &priv->iwstats;
2180 }
2181
2182
2183 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2184 static const iw_handler rndis_iw_handler[] =
2185 {
2186 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
2187 IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname,
2188 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
2189 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
2190 IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode,
2191 IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode,
2192 IW_IOCTL(SIOCGIWRANGE) = rndis_iw_get_range,
2193 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
2194 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
2195 IW_IOCTL(SIOCSIWSCAN) = rndis_iw_set_scan,
2196 IW_IOCTL(SIOCGIWSCAN) = rndis_iw_get_scan,
2197 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
2198 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
2199 IW_IOCTL(SIOCSIWNICKN) = rndis_iw_set_nick,
2200 IW_IOCTL(SIOCGIWNICKN) = rndis_iw_get_nick,
2201 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
2202 IW_IOCTL(SIOCSIWRTS) = rndis_iw_set_rts,
2203 IW_IOCTL(SIOCGIWRTS) = rndis_iw_get_rts,
2204 IW_IOCTL(SIOCSIWFRAG) = rndis_iw_set_frag,
2205 IW_IOCTL(SIOCGIWFRAG) = rndis_iw_get_frag,
2206 IW_IOCTL(SIOCSIWTXPOW) = rndis_iw_set_txpower,
2207 IW_IOCTL(SIOCGIWTXPOW) = rndis_iw_get_txpower,
2208 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2209 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2210 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2211 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2212 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2213 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2214 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2215 };
2216
2217 static const iw_handler rndis_wext_private_handler[] = {
2218 };
2219
2220 static const struct iw_priv_args rndis_wext_private_args[] = {
2221 };
2222
2223
2224 static const struct iw_handler_def rndis_iw_handlers = {
2225 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2226 .num_private = ARRAY_SIZE(rndis_wext_private_handler),
2227 .num_private_args = ARRAY_SIZE(rndis_wext_private_args),
2228 .standard = (iw_handler *)rndis_iw_handler,
2229 .private = (iw_handler *)rndis_wext_private_handler,
2230 .private_args = (struct iw_priv_args *)rndis_wext_private_args,
2231 .get_wireless_stats = rndis_get_wireless_stats,
2232 };
2233
2234
2235 static void rndis_wext_worker(struct work_struct *work)
2236 {
2237 struct rndis_wext_private *priv =
2238 container_of(work, struct rndis_wext_private, work);
2239 struct usbnet *usbdev = priv->usbdev;
2240 union iwreq_data evt;
2241 unsigned char bssid[ETH_ALEN];
2242 struct ndis_80211_assoc_info *info;
2243 int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32;
2244 int ret, offset;
2245
2246 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) {
2247 netif_carrier_on(usbdev->net);
2248
2249 info = kzalloc(assoc_size, GFP_KERNEL);
2250 if (!info)
2251 goto get_bssid;
2252
2253 /* Get association info IEs from device and send them back to
2254 * userspace. */
2255 ret = get_association_info(usbdev, info, assoc_size);
2256 if (!ret) {
2257 evt.data.length = le32_to_cpu(info->req_ie_length);
2258 if (evt.data.length > 0) {
2259 offset = le32_to_cpu(info->offset_req_ies);
2260 wireless_send_event(usbdev->net,
2261 IWEVASSOCREQIE, &evt,
2262 (char *)info + offset);
2263 }
2264
2265 evt.data.length = le32_to_cpu(info->resp_ie_length);
2266 if (evt.data.length > 0) {
2267 offset = le32_to_cpu(info->offset_resp_ies);
2268 wireless_send_event(usbdev->net,
2269 IWEVASSOCRESPIE, &evt,
2270 (char *)info + offset);
2271 }
2272 }
2273
2274 kfree(info);
2275
2276 get_bssid:
2277 ret = get_bssid(usbdev, bssid);
2278 if (!ret) {
2279 evt.data.flags = 0;
2280 evt.data.length = 0;
2281 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2282 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2283 }
2284 }
2285
2286 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) {
2287 netif_carrier_off(usbdev->net);
2288
2289 evt.data.flags = 0;
2290 evt.data.length = 0;
2291 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2292 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2293 }
2294
2295 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2296 set_multicast_list(usbdev);
2297 }
2298
2299 static void rndis_wext_set_multicast_list(struct net_device *dev)
2300 {
2301 struct usbnet *usbdev = netdev_priv(dev);
2302 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2303
2304 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2305 return;
2306
2307 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2308 queue_work(priv->workqueue, &priv->work);
2309 }
2310
2311 static void rndis_wext_link_change(struct usbnet *usbdev, int state)
2312 {
2313 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2314
2315 /* queue work to avoid recursive calls into rndis_command */
2316 set_bit(state ? WORK_LINK_UP : WORK_LINK_DOWN, &priv->work_pending);
2317 queue_work(priv->workqueue, &priv->work);
2318 }
2319
2320
2321 static int rndis_wext_get_caps(struct usbnet *usbdev)
2322 {
2323 struct {
2324 __le32 num_items;
2325 __le32 items[8];
2326 } networks_supported;
2327 int len, retval, i, n;
2328 __le32 tx_power;
2329 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2330
2331 /* determine if supports setting txpower */
2332 len = sizeof(tx_power);
2333 retval = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL, &tx_power,
2334 &len);
2335 if (retval == 0 && le32_to_cpu(tx_power) != 0xFF)
2336 priv->caps |= CAP_SUPPORT_TXPOWER;
2337
2338 /* determine supported modes */
2339 len = sizeof(networks_supported);
2340 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2341 &networks_supported, &len);
2342 if (retval >= 0) {
2343 n = le32_to_cpu(networks_supported.num_items);
2344 if (n > 8)
2345 n = 8;
2346 for (i = 0; i < n; i++) {
2347 switch (le32_to_cpu(networks_supported.items[i])) {
2348 case ndis_80211_type_freq_hop:
2349 case ndis_80211_type_direct_seq:
2350 priv->caps |= CAP_MODE_80211B;
2351 break;
2352 case ndis_80211_type_ofdm_a:
2353 priv->caps |= CAP_MODE_80211A;
2354 break;
2355 case ndis_80211_type_ofdm_g:
2356 priv->caps |= CAP_MODE_80211G;
2357 break;
2358 }
2359 }
2360 }
2361
2362 return retval;
2363 }
2364
2365
2366 #define STATS_UPDATE_JIFFIES (HZ)
2367 static void rndis_update_wireless_stats(struct work_struct *work)
2368 {
2369 struct rndis_wext_private *priv =
2370 container_of(work, struct rndis_wext_private, stats_work.work);
2371 struct usbnet *usbdev = priv->usbdev;
2372 struct iw_statistics iwstats;
2373 __le32 rssi, tmp;
2374 int len, ret, j;
2375 unsigned long flags;
2376 int update_jiffies = STATS_UPDATE_JIFFIES;
2377 void *buf;
2378
2379 spin_lock_irqsave(&priv->stats_lock, flags);
2380 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2381 spin_unlock_irqrestore(&priv->stats_lock, flags);
2382
2383 /* only update stats when connected */
2384 if (!is_associated(usbdev)) {
2385 iwstats.qual.qual = 0;
2386 iwstats.qual.level = 0;
2387 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2388 | IW_QUAL_LEVEL_UPDATED
2389 | IW_QUAL_NOISE_INVALID
2390 | IW_QUAL_QUAL_INVALID
2391 | IW_QUAL_LEVEL_INVALID;
2392 goto end;
2393 }
2394
2395 len = sizeof(rssi);
2396 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2397
2398 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2399 le32_to_cpu(rssi));
2400 if (ret == 0) {
2401 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2402 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2403 iwstats.qual.level = le32_to_cpu(rssi);
2404 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2405 | IW_QUAL_LEVEL_UPDATED
2406 | IW_QUAL_NOISE_INVALID;
2407 }
2408
2409 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2410
2411 len = sizeof(tmp);
2412 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2413 if (ret == 0)
2414 iwstats.discard.misc += le32_to_cpu(tmp);
2415
2416 len = sizeof(tmp);
2417 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2418 if (ret == 0)
2419 iwstats.discard.misc += le32_to_cpu(tmp);
2420
2421 len = sizeof(tmp);
2422 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2423 if (ret == 0)
2424 iwstats.discard.misc += le32_to_cpu(tmp);
2425
2426 /* Workaround transfer stalls on poor quality links.
2427 * TODO: find right way to fix these stalls (as stalls do not happen
2428 * with ndiswrapper/windows driver). */
2429 if (iwstats.qual.qual <= 25) {
2430 /* Decrease stats worker interval to catch stalls.
2431 * faster. Faster than 400-500ms causes packet loss,
2432 * Slower doesn't catch stalls fast enough.
2433 */
2434 j = msecs_to_jiffies(priv->param_workaround_interval);
2435 if (j > STATS_UPDATE_JIFFIES)
2436 j = STATS_UPDATE_JIFFIES;
2437 else if (j <= 0)
2438 j = 1;
2439 update_jiffies = j;
2440
2441 /* Send scan OID. Use of both OIDs is required to get device
2442 * working.
2443 */
2444 tmp = cpu_to_le32(1);
2445 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2446 sizeof(tmp));
2447
2448 len = CONTROL_BUFFER_SIZE;
2449 buf = kmalloc(len, GFP_KERNEL);
2450 if (!buf)
2451 goto end;
2452
2453 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2454 kfree(buf);
2455 }
2456 end:
2457 spin_lock_irqsave(&priv->stats_lock, flags);
2458 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2459 spin_unlock_irqrestore(&priv->stats_lock, flags);
2460
2461 if (update_jiffies >= HZ)
2462 update_jiffies = round_jiffies_relative(update_jiffies);
2463 else {
2464 j = round_jiffies_relative(update_jiffies);
2465 if (abs(j - update_jiffies) <= 10)
2466 update_jiffies = j;
2467 }
2468
2469 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2470 }
2471
2472
2473 static int bcm4320_early_init(struct usbnet *usbdev)
2474 {
2475 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2476 char buf[8];
2477
2478 /* Early initialization settings, setting these won't have effect
2479 * if called after generic_rndis_bind().
2480 */
2481
2482 priv->param_country[0] = modparam_country[0];
2483 priv->param_country[1] = modparam_country[1];
2484 priv->param_country[2] = 0;
2485 priv->param_frameburst = modparam_frameburst;
2486 priv->param_afterburner = modparam_afterburner;
2487 priv->param_power_save = modparam_power_save;
2488 priv->param_power_output = modparam_power_output;
2489 priv->param_roamtrigger = modparam_roamtrigger;
2490 priv->param_roamdelta = modparam_roamdelta;
2491
2492 priv->param_country[0] = toupper(priv->param_country[0]);
2493 priv->param_country[1] = toupper(priv->param_country[1]);
2494 /* doesn't support EU as country code, use FI instead */
2495 if (!strcmp(priv->param_country, "EU"))
2496 strcpy(priv->param_country, "FI");
2497
2498 if (priv->param_power_save < 0)
2499 priv->param_power_save = 0;
2500 else if (priv->param_power_save > 2)
2501 priv->param_power_save = 2;
2502
2503 if (priv->param_power_output < 0)
2504 priv->param_power_output = 0;
2505 else if (priv->param_power_output > 3)
2506 priv->param_power_output = 3;
2507
2508 if (priv->param_roamtrigger < -80)
2509 priv->param_roamtrigger = -80;
2510 else if (priv->param_roamtrigger > -60)
2511 priv->param_roamtrigger = -60;
2512
2513 if (priv->param_roamdelta < 0)
2514 priv->param_roamdelta = 0;
2515 else if (priv->param_roamdelta > 2)
2516 priv->param_roamdelta = 2;
2517
2518 if (modparam_workaround_interval < 0)
2519 priv->param_workaround_interval = 500;
2520 else
2521 priv->param_workaround_interval = modparam_workaround_interval;
2522
2523 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2524 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2525 priv->param_frameburst ? "1" : "0");
2526 rndis_set_config_parameter_str(usbdev, "Afterburner",
2527 priv->param_afterburner ? "1" : "0");
2528 sprintf(buf, "%d", priv->param_power_save);
2529 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2530 sprintf(buf, "%d", priv->param_power_output);
2531 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2532 sprintf(buf, "%d", priv->param_roamtrigger);
2533 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2534 sprintf(buf, "%d", priv->param_roamdelta);
2535 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2536
2537 return 0;
2538 }
2539
2540 /* same as rndis_netdev_ops but with local multicast handler */
2541 static const struct net_device_ops rndis_wext_netdev_ops = {
2542 .ndo_open = usbnet_open,
2543 .ndo_stop = usbnet_stop,
2544 .ndo_start_xmit = usbnet_start_xmit,
2545 .ndo_tx_timeout = usbnet_tx_timeout,
2546 .ndo_set_mac_address = eth_mac_addr,
2547 .ndo_validate_addr = eth_validate_addr,
2548 .ndo_set_multicast_list = rndis_wext_set_multicast_list,
2549 };
2550
2551
2552 static int rndis_wext_bind(struct usbnet *usbdev, struct usb_interface *intf)
2553 {
2554 struct wiphy *wiphy;
2555 struct rndis_wext_private *priv;
2556 int retval, len;
2557 __le32 tmp;
2558
2559 /* allocate wiphy and rndis private data
2560 * NOTE: We only support a single virtual interface, so wiphy
2561 * and wireless_dev are somewhat synonymous for this device.
2562 */
2563 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wext_private));
2564 if (!wiphy)
2565 return -ENOMEM;
2566
2567 priv = wiphy_priv(wiphy);
2568 usbdev->net->ieee80211_ptr = &priv->wdev;
2569 priv->wdev.wiphy = wiphy;
2570 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2571
2572 /* These have to be initialized before calling generic_rndis_bind().
2573 * Otherwise we'll be in big trouble in rndis_wext_early_init().
2574 */
2575 usbdev->driver_priv = priv;
2576 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2577 priv->usbdev = usbdev;
2578
2579 mutex_init(&priv->command_lock);
2580 spin_lock_init(&priv->stats_lock);
2581
2582 /* try bind rndis_host */
2583 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2584 if (retval < 0)
2585 goto fail;
2586
2587 /* generic_rndis_bind set packet filter to multicast_all+
2588 * promisc mode which doesn't work well for our devices (device
2589 * picks up rssi to closest station instead of to access point).
2590 *
2591 * rndis_host wants to avoid all OID as much as possible
2592 * so do promisc/multicast handling in rndis_wext.
2593 */
2594 usbdev->net->netdev_ops = &rndis_wext_netdev_ops;
2595
2596 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2597 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2598 sizeof(tmp));
2599
2600 len = sizeof(tmp);
2601 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2602 &len);
2603 priv->multicast_size = le32_to_cpu(tmp);
2604 if (retval < 0 || priv->multicast_size < 0)
2605 priv->multicast_size = 0;
2606 if (priv->multicast_size > 0)
2607 usbdev->net->flags |= IFF_MULTICAST;
2608 else
2609 usbdev->net->flags &= ~IFF_MULTICAST;
2610
2611 priv->iwstats.qual.qual = 0;
2612 priv->iwstats.qual.level = 0;
2613 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2614 | IW_QUAL_LEVEL_UPDATED
2615 | IW_QUAL_NOISE_INVALID
2616 | IW_QUAL_QUAL_INVALID
2617 | IW_QUAL_LEVEL_INVALID;
2618
2619 /* fill-out wiphy structure and register w/ cfg80211 */
2620 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2621 wiphy->privid = rndis_wiphy_privid;
2622 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2623 | BIT(NL80211_IFTYPE_ADHOC);
2624 wiphy->max_scan_ssids = 1;
2625
2626 /* TODO: fill-out band information based on priv->caps */
2627 rndis_wext_get_caps(usbdev);
2628
2629 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2630 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2631 priv->band.channels = priv->channels;
2632 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2633 priv->band.bitrates = priv->rates;
2634 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2635 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2636
2637 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2638
2639 if (wiphy_register(wiphy)) {
2640 wiphy_free(wiphy);
2641 return -ENODEV;
2642 }
2643
2644 set_default_iw_params(usbdev);
2645
2646 /* turn radio on */
2647 priv->radio_on = 1;
2648 disassociate(usbdev, 1);
2649 netif_carrier_off(usbdev->net);
2650
2651 /* because rndis_command() sleeps we need to use workqueue */
2652 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2653 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2654 queue_delayed_work(priv->workqueue, &priv->stats_work,
2655 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2656 INIT_WORK(&priv->work, rndis_wext_worker);
2657
2658 return 0;
2659
2660 fail:
2661 kfree(priv);
2662 return retval;
2663 }
2664
2665
2666 static void rndis_wext_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2667 {
2668 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2669
2670 /* turn radio off */
2671 disassociate(usbdev, 0);
2672
2673 cancel_delayed_work_sync(&priv->stats_work);
2674 cancel_work_sync(&priv->work);
2675 flush_workqueue(priv->workqueue);
2676 destroy_workqueue(priv->workqueue);
2677
2678 if (priv && priv->wpa_ie_len)
2679 kfree(priv->wpa_ie);
2680
2681 rndis_unbind(usbdev, intf);
2682
2683 wiphy_unregister(priv->wdev.wiphy);
2684 wiphy_free(priv->wdev.wiphy);
2685 }
2686
2687
2688 static int rndis_wext_reset(struct usbnet *usbdev)
2689 {
2690 return deauthenticate(usbdev);
2691 }
2692
2693
2694 static const struct driver_info bcm4320b_info = {
2695 .description = "Wireless RNDIS device, BCM4320b based",
2696 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2697 .bind = rndis_wext_bind,
2698 .unbind = rndis_wext_unbind,
2699 .status = rndis_status,
2700 .rx_fixup = rndis_rx_fixup,
2701 .tx_fixup = rndis_tx_fixup,
2702 .reset = rndis_wext_reset,
2703 .early_init = bcm4320_early_init,
2704 .link_change = rndis_wext_link_change,
2705 };
2706
2707 static const struct driver_info bcm4320a_info = {
2708 .description = "Wireless RNDIS device, BCM4320a based",
2709 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2710 .bind = rndis_wext_bind,
2711 .unbind = rndis_wext_unbind,
2712 .status = rndis_status,
2713 .rx_fixup = rndis_rx_fixup,
2714 .tx_fixup = rndis_tx_fixup,
2715 .reset = rndis_wext_reset,
2716 .early_init = bcm4320_early_init,
2717 .link_change = rndis_wext_link_change,
2718 };
2719
2720 static const struct driver_info rndis_wext_info = {
2721 .description = "Wireless RNDIS device",
2722 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2723 .bind = rndis_wext_bind,
2724 .unbind = rndis_wext_unbind,
2725 .status = rndis_status,
2726 .rx_fixup = rndis_rx_fixup,
2727 .tx_fixup = rndis_tx_fixup,
2728 .reset = rndis_wext_reset,
2729 .early_init = bcm4320_early_init,
2730 .link_change = rndis_wext_link_change,
2731 };
2732
2733 /*-------------------------------------------------------------------------*/
2734
2735 static const struct usb_device_id products [] = {
2736 #define RNDIS_MASTER_INTERFACE \
2737 .bInterfaceClass = USB_CLASS_COMM, \
2738 .bInterfaceSubClass = 2 /* ACM */, \
2739 .bInterfaceProtocol = 0x0ff
2740
2741 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2742 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2743 */
2744 {
2745 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2746 | USB_DEVICE_ID_MATCH_DEVICE,
2747 .idVendor = 0x0411,
2748 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2749 RNDIS_MASTER_INTERFACE,
2750 .driver_info = (unsigned long) &bcm4320b_info,
2751 }, {
2752 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2753 | USB_DEVICE_ID_MATCH_DEVICE,
2754 .idVendor = 0x0baf,
2755 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2756 RNDIS_MASTER_INTERFACE,
2757 .driver_info = (unsigned long) &bcm4320b_info,
2758 }, {
2759 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2760 | USB_DEVICE_ID_MATCH_DEVICE,
2761 .idVendor = 0x050d,
2762 .idProduct = 0x011b, /* Belkin F5D7051 */
2763 RNDIS_MASTER_INTERFACE,
2764 .driver_info = (unsigned long) &bcm4320b_info,
2765 }, {
2766 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2767 | USB_DEVICE_ID_MATCH_DEVICE,
2768 .idVendor = 0x1799, /* Belkin has two vendor ids */
2769 .idProduct = 0x011b, /* Belkin F5D7051 */
2770 RNDIS_MASTER_INTERFACE,
2771 .driver_info = (unsigned long) &bcm4320b_info,
2772 }, {
2773 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2774 | USB_DEVICE_ID_MATCH_DEVICE,
2775 .idVendor = 0x13b1,
2776 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2777 RNDIS_MASTER_INTERFACE,
2778 .driver_info = (unsigned long) &bcm4320b_info,
2779 }, {
2780 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2781 | USB_DEVICE_ID_MATCH_DEVICE,
2782 .idVendor = 0x13b1,
2783 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2784 RNDIS_MASTER_INTERFACE,
2785 .driver_info = (unsigned long) &bcm4320b_info,
2786 }, {
2787 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2788 | USB_DEVICE_ID_MATCH_DEVICE,
2789 .idVendor = 0x0b05,
2790 .idProduct = 0x1717, /* Asus WL169gE */
2791 RNDIS_MASTER_INTERFACE,
2792 .driver_info = (unsigned long) &bcm4320b_info,
2793 }, {
2794 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2795 | USB_DEVICE_ID_MATCH_DEVICE,
2796 .idVendor = 0x0a5c,
2797 .idProduct = 0xd11b, /* Eminent EM4045 */
2798 RNDIS_MASTER_INTERFACE,
2799 .driver_info = (unsigned long) &bcm4320b_info,
2800 }, {
2801 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2802 | USB_DEVICE_ID_MATCH_DEVICE,
2803 .idVendor = 0x1690,
2804 .idProduct = 0x0715, /* BT Voyager 1055 */
2805 RNDIS_MASTER_INTERFACE,
2806 .driver_info = (unsigned long) &bcm4320b_info,
2807 },
2808 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2809 * parameters available, hardware probably contain older firmware version with
2810 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2811 */
2812 {
2813 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2814 | USB_DEVICE_ID_MATCH_DEVICE,
2815 .idVendor = 0x13b1,
2816 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2817 RNDIS_MASTER_INTERFACE,
2818 .driver_info = (unsigned long) &bcm4320a_info,
2819 }, {
2820 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2821 | USB_DEVICE_ID_MATCH_DEVICE,
2822 .idVendor = 0x0baf,
2823 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2824 RNDIS_MASTER_INTERFACE,
2825 .driver_info = (unsigned long) &bcm4320a_info,
2826 }, {
2827 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2828 | USB_DEVICE_ID_MATCH_DEVICE,
2829 .idVendor = 0x0411,
2830 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2831 RNDIS_MASTER_INTERFACE,
2832 .driver_info = (unsigned long) &bcm4320a_info,
2833 },
2834 /* Generic Wireless RNDIS devices that we don't have exact
2835 * idVendor/idProduct/chip yet.
2836 */
2837 {
2838 /* RNDIS is MSFT's un-official variant of CDC ACM */
2839 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2840 .driver_info = (unsigned long) &rndis_wext_info,
2841 }, {
2842 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2843 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2844 .driver_info = (unsigned long) &rndis_wext_info,
2845 },
2846 { }, // END
2847 };
2848 MODULE_DEVICE_TABLE(usb, products);
2849
2850 static struct usb_driver rndis_wlan_driver = {
2851 .name = "rndis_wlan",
2852 .id_table = products,
2853 .probe = usbnet_probe,
2854 .disconnect = usbnet_disconnect,
2855 .suspend = usbnet_suspend,
2856 .resume = usbnet_resume,
2857 };
2858
2859 static int __init rndis_wlan_init(void)
2860 {
2861 return usb_register(&rndis_wlan_driver);
2862 }
2863 module_init(rndis_wlan_init);
2864
2865 static void __exit rndis_wlan_exit(void)
2866 {
2867 usb_deregister(&rndis_wlan_driver);
2868 }
2869 module_exit(rndis_wlan_exit);
2870
2871 MODULE_AUTHOR("Bjorge Dijkstra");
2872 MODULE_AUTHOR("Jussi Kivilinna");
2873 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2874 MODULE_LICENSE("GPL");
2875
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