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rndis_wlan: explain bits used in key setup code.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / rndis_wlan.c
blob041680019a8e9e816fc3c2782c5c9dc9cd751cef
1 /*
2 * Driver for RNDIS based wireless USB devices.
3 *
4 * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
5 * Copyright (C) 2008-2009 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/cfg80211.h>
46 #include <linux/usb/usbnet.h>
47 #include <linux/usb/rndis_host.h>
48
49
50 /* NOTE: All these are settings for Broadcom chipset */
51 static char modparam_country[4] = "EU";
52 module_param_string(country, modparam_country, 4, 0444);
53 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
54
55 static int modparam_frameburst = 1;
56 module_param_named(frameburst, modparam_frameburst, int, 0444);
57 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
58
59 static int modparam_afterburner = 0;
60 module_param_named(afterburner, modparam_afterburner, int, 0444);
61 MODULE_PARM_DESC(afterburner,
62 "enable afterburner aka '125 High Speed Mode' (default: off)");
63
64 static int modparam_power_save = 0;
65 module_param_named(power_save, modparam_power_save, int, 0444);
66 MODULE_PARM_DESC(power_save,
67 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
68
69 static int modparam_power_output = 3;
70 module_param_named(power_output, modparam_power_output, int, 0444);
71 MODULE_PARM_DESC(power_output,
72 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
73
74 static int modparam_roamtrigger = -70;
75 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
76 MODULE_PARM_DESC(roamtrigger,
77 "set roaming dBm trigger: -80=optimize for distance, "
78 "-60=bandwidth (default: -70)");
79
80 static int modparam_roamdelta = 1;
81 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
82 MODULE_PARM_DESC(roamdelta,
83 "set roaming tendency: 0=aggressive, 1=moderate, "
84 "2=conservative (default: moderate)");
85
86 static int modparam_workaround_interval = 500;
87 module_param_named(workaround_interval, modparam_workaround_interval,
88 int, 0444);
89 MODULE_PARM_DESC(workaround_interval,
90 "set stall workaround interval in msecs (default: 500)");
91
92
93 /* various RNDIS OID defs */
94 #define OID_GEN_LINK_SPEED cpu_to_le32(0x00010107)
95 #define OID_GEN_RNDIS_CONFIG_PARAMETER cpu_to_le32(0x0001021b)
96
97 #define OID_GEN_XMIT_OK cpu_to_le32(0x00020101)
98 #define OID_GEN_RCV_OK cpu_to_le32(0x00020102)
99 #define OID_GEN_XMIT_ERROR cpu_to_le32(0x00020103)
100 #define OID_GEN_RCV_ERROR cpu_to_le32(0x00020104)
101 #define OID_GEN_RCV_NO_BUFFER cpu_to_le32(0x00020105)
102
103 #define OID_802_3_PERMANENT_ADDRESS cpu_to_le32(0x01010101)
104 #define OID_802_3_CURRENT_ADDRESS cpu_to_le32(0x01010102)
105 #define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103)
106 #define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104)
107
108 #define OID_802_11_BSSID cpu_to_le32(0x0d010101)
109 #define OID_802_11_SSID cpu_to_le32(0x0d010102)
110 #define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108)
111 #define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113)
112 #define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114)
113 #define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115)
114 #define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118)
115 #define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119)
116 #define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a)
117 #define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b)
118 #define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d)
119 #define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e)
120 #define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f)
121 #define OID_802_11_PMKID cpu_to_le32(0x0d010123)
122 #define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
123 #define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
124 #define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
125 #define OID_802_11_RSSI cpu_to_le32(0x0d010206)
126 #define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
127 #define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
128 #define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
129 #define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
130 #define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
131 #define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
132
133
134 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
135 #define WL_NOISE -96 /* typical noise level in dBm */
136 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
137
138
139 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
140 * based on wireless rndis) has default txpower of 13dBm.
141 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
142 * 13dBm == 19.9mW
143 */
144 #define BCM4320_DEFAULT_TXPOWER 20
145
146
147 /* codes for "status" field of completion messages */
148 #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
149 #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
150
151
152 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
153 * slightly modified for datatype endianess, etc
154 */
155 #define NDIS_802_11_LENGTH_SSID 32
156 #define NDIS_802_11_LENGTH_RATES 8
157 #define NDIS_802_11_LENGTH_RATES_EX 16
158
159 enum ndis_80211_net_type {
160 ndis_80211_type_freq_hop,
161 ndis_80211_type_direct_seq,
162 ndis_80211_type_ofdm_a,
163 ndis_80211_type_ofdm_g
164 };
165
166 enum ndis_80211_net_infra {
167 ndis_80211_infra_adhoc,
168 ndis_80211_infra_infra,
169 ndis_80211_infra_auto_unknown
170 };
171
172 enum ndis_80211_auth_mode {
173 ndis_80211_auth_open,
174 ndis_80211_auth_shared,
175 ndis_80211_auth_auto_switch,
176 ndis_80211_auth_wpa,
177 ndis_80211_auth_wpa_psk,
178 ndis_80211_auth_wpa_none,
179 ndis_80211_auth_wpa2,
180 ndis_80211_auth_wpa2_psk
181 };
182
183 enum ndis_80211_encr_status {
184 ndis_80211_encr_wep_enabled,
185 ndis_80211_encr_disabled,
186 ndis_80211_encr_wep_key_absent,
187 ndis_80211_encr_not_supported,
188 ndis_80211_encr_tkip_enabled,
189 ndis_80211_encr_tkip_key_absent,
190 ndis_80211_encr_ccmp_enabled,
191 ndis_80211_encr_ccmp_key_absent
192 };
193
194 enum ndis_80211_priv_filter {
195 ndis_80211_priv_accept_all,
196 ndis_80211_priv_8021x_wep
197 };
198
199 enum ndis_80211_addkey_bits {
200 ndis_80211_addkey_8021x_auth = cpu_to_le32(1 << 28),
201 ndis_80211_addkey_set_init_recv_seq = cpu_to_le32(1 << 29),
202 ndis_80211_addkey_pairwise_key = cpu_to_le32(1 << 30),
203 ndis_80211_addkey_transmit_key = cpu_to_le32(1 << 31),
204 };
205
206 enum ndis_80211_addwep_bits {
207 ndis_80211_addwep_perclient_key = cpu_to_le32(1 << 30),
208 ndis_80211_addwep_transmit_key = cpu_to_le32(1 << 31),
209 };
210
211 struct ndis_80211_ssid {
212 __le32 length;
213 u8 essid[NDIS_802_11_LENGTH_SSID];
214 } __attribute__((packed));
215
216 struct ndis_80211_conf_freq_hop {
217 __le32 length;
218 __le32 hop_pattern;
219 __le32 hop_set;
220 __le32 dwell_time;
221 } __attribute__((packed));
222
223 struct ndis_80211_conf {
224 __le32 length;
225 __le32 beacon_period;
226 __le32 atim_window;
227 __le32 ds_config;
228 struct ndis_80211_conf_freq_hop fh_config;
229 } __attribute__((packed));
230
231 struct ndis_80211_bssid_ex {
232 __le32 length;
233 u8 mac[6];
234 u8 padding[2];
235 struct ndis_80211_ssid ssid;
236 __le32 privacy;
237 __le32 rssi;
238 __le32 net_type;
239 struct ndis_80211_conf config;
240 __le32 net_infra;
241 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
242 __le32 ie_length;
243 u8 ies[0];
244 } __attribute__((packed));
245
246 struct ndis_80211_bssid_list_ex {
247 __le32 num_items;
248 struct ndis_80211_bssid_ex bssid[0];
249 } __attribute__((packed));
250
251 struct ndis_80211_fixed_ies {
252 u8 timestamp[8];
253 __le16 beacon_interval;
254 __le16 capabilities;
255 } __attribute__((packed));
256
257 struct ndis_80211_wep_key {
258 __le32 size;
259 __le32 index;
260 __le32 length;
261 u8 material[32];
262 } __attribute__((packed));
263
264 struct ndis_80211_key {
265 __le32 size;
266 __le32 index;
267 __le32 length;
268 u8 bssid[6];
269 u8 padding[6];
270 u8 rsc[8];
271 u8 material[32];
272 } __attribute__((packed));
273
274 struct ndis_80211_remove_key {
275 __le32 size;
276 __le32 index;
277 u8 bssid[6];
278 } __attribute__((packed));
279
280 struct ndis_config_param {
281 __le32 name_offs;
282 __le32 name_length;
283 __le32 type;
284 __le32 value_offs;
285 __le32 value_length;
286 } __attribute__((packed));
287
288 struct ndis_80211_assoc_info {
289 __le32 length;
290 __le16 req_ies;
291 struct req_ie {
292 __le16 capa;
293 __le16 listen_interval;
294 u8 cur_ap_address[6];
295 } req_ie;
296 __le32 req_ie_length;
297 __le32 offset_req_ies;
298 __le16 resp_ies;
299 struct resp_ie {
300 __le16 capa;
301 __le16 status_code;
302 __le16 assoc_id;
303 } resp_ie;
304 __le32 resp_ie_length;
305 __le32 offset_resp_ies;
306 } __attribute__((packed));
307
308 /* these have to match what is in wpa_supplicant */
309 enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
310 enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
311 CIPHER_WEP104 };
312 enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE,
313 KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE };
314
315 /*
316 * private data
317 */
318 #define NET_TYPE_11FB 0
319
320 #define CAP_MODE_80211A 1
321 #define CAP_MODE_80211B 2
322 #define CAP_MODE_80211G 4
323 #define CAP_MODE_MASK 7
324
325 #define WORK_LINK_UP (1<<0)
326 #define WORK_LINK_DOWN (1<<1)
327 #define WORK_SET_MULTICAST_LIST (1<<2)
328
329 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
330
331 static const struct ieee80211_channel rndis_channels[] = {
332 { .center_freq = 2412 },
333 { .center_freq = 2417 },
334 { .center_freq = 2422 },
335 { .center_freq = 2427 },
336 { .center_freq = 2432 },
337 { .center_freq = 2437 },
338 { .center_freq = 2442 },
339 { .center_freq = 2447 },
340 { .center_freq = 2452 },
341 { .center_freq = 2457 },
342 { .center_freq = 2462 },
343 { .center_freq = 2467 },
344 { .center_freq = 2472 },
345 { .center_freq = 2484 },
346 };
347
348 static const struct ieee80211_rate rndis_rates[] = {
349 { .bitrate = 10 },
350 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
351 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
352 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
353 { .bitrate = 60 },
354 { .bitrate = 90 },
355 { .bitrate = 120 },
356 { .bitrate = 180 },
357 { .bitrate = 240 },
358 { .bitrate = 360 },
359 { .bitrate = 480 },
360 { .bitrate = 540 }
361 };
362
363 /* RNDIS device private data */
364 struct rndis_wext_private {
365 struct usbnet *usbdev;
366
367 struct wireless_dev wdev;
368
369 struct cfg80211_scan_request *scan_request;
370
371 struct workqueue_struct *workqueue;
372 struct delayed_work stats_work;
373 struct delayed_work scan_work;
374 struct work_struct work;
375 struct mutex command_lock;
376 spinlock_t stats_lock;
377 unsigned long work_pending;
378
379 struct ieee80211_supported_band band;
380 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
381 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
382
383 struct iw_statistics iwstats;
384 struct iw_statistics privstats;
385
386 int caps;
387 int multicast_size;
388
389 /* module parameters */
390 char param_country[4];
391 int param_frameburst;
392 int param_afterburner;
393 int param_power_save;
394 int param_power_output;
395 int param_roamtrigger;
396 int param_roamdelta;
397 u32 param_workaround_interval;
398
399 /* hardware state */
400 int radio_on;
401 int infra_mode;
402 struct ndis_80211_ssid essid;
403
404 /* encryption stuff */
405 int encr_tx_key_index;
406 char encr_keys[4][32];
407 int encr_key_len[4];
408 int wpa_version;
409 int wpa_keymgmt;
410 int wpa_authalg;
411 int wpa_ie_len;
412 u8 *wpa_ie;
413 int wpa_cipher_pair;
414 int wpa_cipher_group;
415
416 u8 command_buffer[COMMAND_BUFFER_SIZE];
417 };
418
419 /*
420 * cfg80211 ops
421 */
422 static int rndis_change_virtual_intf(struct wiphy *wiphy, int ifindex,
423 enum nl80211_iftype type, u32 *flags,
424 struct vif_params *params);
425
426 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
427 struct cfg80211_scan_request *request);
428
429 static struct cfg80211_ops rndis_config_ops = {
430 .change_virtual_intf = rndis_change_virtual_intf,
431 .scan = rndis_scan,
432 };
433
434 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
435
436 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
437
438 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
439 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
440 0xff, 0xff, 0xff };
441
442
443 static struct rndis_wext_private *get_rndis_wext_priv(struct usbnet *dev)
444 {
445 return (struct rndis_wext_private *)dev->driver_priv;
446 }
447
448
449 static u32 get_bcm4320_power(struct rndis_wext_private *priv)
450 {
451 return BCM4320_DEFAULT_TXPOWER *
452 bcm4320_power_output[priv->param_power_output] / 100;
453 }
454
455
456 /* translate error code */
457 static int rndis_error_status(__le32 rndis_status)
458 {
459 int ret = -EINVAL;
460 switch (rndis_status) {
461 case RNDIS_STATUS_SUCCESS:
462 ret = 0;
463 break;
464 case RNDIS_STATUS_FAILURE:
465 case RNDIS_STATUS_INVALID_DATA:
466 ret = -EINVAL;
467 break;
468 case RNDIS_STATUS_NOT_SUPPORTED:
469 ret = -EOPNOTSUPP;
470 break;
471 case RNDIS_STATUS_ADAPTER_NOT_READY:
472 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
473 ret = -EBUSY;
474 break;
475 }
476 return ret;
477 }
478
479
480 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
481 {
482 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
483 union {
484 void *buf;
485 struct rndis_msg_hdr *header;
486 struct rndis_query *get;
487 struct rndis_query_c *get_c;
488 } u;
489 int ret, buflen;
490
491 buflen = *len + sizeof(*u.get);
492 if (buflen < CONTROL_BUFFER_SIZE)
493 buflen = CONTROL_BUFFER_SIZE;
494
495 if (buflen > COMMAND_BUFFER_SIZE) {
496 u.buf = kmalloc(buflen, GFP_KERNEL);
497 if (!u.buf)
498 return -ENOMEM;
499 } else {
500 u.buf = priv->command_buffer;
501 }
502
503 mutex_lock(&priv->command_lock);
504
505 memset(u.get, 0, sizeof *u.get);
506 u.get->msg_type = RNDIS_MSG_QUERY;
507 u.get->msg_len = cpu_to_le32(sizeof *u.get);
508 u.get->oid = oid;
509
510 ret = rndis_command(dev, u.header, buflen);
511 if (ret == 0) {
512 ret = le32_to_cpu(u.get_c->len);
513 *len = (*len > ret) ? ret : *len;
514 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
515 ret = rndis_error_status(u.get_c->status);
516 }
517
518 mutex_unlock(&priv->command_lock);
519
520 if (u.buf != priv->command_buffer)
521 kfree(u.buf);
522 return ret;
523 }
524
525
526 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
527 {
528 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
529 union {
530 void *buf;
531 struct rndis_msg_hdr *header;
532 struct rndis_set *set;
533 struct rndis_set_c *set_c;
534 } u;
535 int ret, buflen;
536
537 buflen = len + sizeof(*u.set);
538 if (buflen < CONTROL_BUFFER_SIZE)
539 buflen = CONTROL_BUFFER_SIZE;
540
541 if (buflen > COMMAND_BUFFER_SIZE) {
542 u.buf = kmalloc(buflen, GFP_KERNEL);
543 if (!u.buf)
544 return -ENOMEM;
545 } else {
546 u.buf = priv->command_buffer;
547 }
548
549 mutex_lock(&priv->command_lock);
550
551 memset(u.set, 0, sizeof *u.set);
552 u.set->msg_type = RNDIS_MSG_SET;
553 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
554 u.set->oid = oid;
555 u.set->len = cpu_to_le32(len);
556 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
557 u.set->handle = cpu_to_le32(0);
558 memcpy(u.buf + sizeof(*u.set), data, len);
559
560 ret = rndis_command(dev, u.header, buflen);
561 if (ret == 0)
562 ret = rndis_error_status(u.set_c->status);
563
564 mutex_unlock(&priv->command_lock);
565
566 if (u.buf != priv->command_buffer)
567 kfree(u.buf);
568 return ret;
569 }
570
571
572 /*
573 * Specs say that we can only set config parameters only soon after device
574 * initialization.
575 * value_type: 0 = u32, 2 = unicode string
576 */
577 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
578 int value_type, void *value)
579 {
580 struct ndis_config_param *infobuf;
581 int value_len, info_len, param_len, ret, i;
582 __le16 *unibuf;
583 __le32 *dst_value;
584
585 if (value_type == 0)
586 value_len = sizeof(__le32);
587 else if (value_type == 2)
588 value_len = strlen(value) * sizeof(__le16);
589 else
590 return -EINVAL;
591
592 param_len = strlen(param) * sizeof(__le16);
593 info_len = sizeof(*infobuf) + param_len + value_len;
594
595 #ifdef DEBUG
596 info_len += 12;
597 #endif
598 infobuf = kmalloc(info_len, GFP_KERNEL);
599 if (!infobuf)
600 return -ENOMEM;
601
602 #ifdef DEBUG
603 info_len -= 12;
604 /* extra 12 bytes are for padding (debug output) */
605 memset(infobuf, 0xCC, info_len + 12);
606 #endif
607
608 if (value_type == 2)
609 devdbg(dev, "setting config parameter: %s, value: %s",
610 param, (u8 *)value);
611 else
612 devdbg(dev, "setting config parameter: %s, value: %d",
613 param, *(u32 *)value);
614
615 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
616 infobuf->name_length = cpu_to_le32(param_len);
617 infobuf->type = cpu_to_le32(value_type);
618 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
619 infobuf->value_length = cpu_to_le32(value_len);
620
621 /* simple string to unicode string conversion */
622 unibuf = (void *)infobuf + sizeof(*infobuf);
623 for (i = 0; i < param_len / sizeof(__le16); i++)
624 unibuf[i] = cpu_to_le16(param[i]);
625
626 if (value_type == 2) {
627 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
628 for (i = 0; i < value_len / sizeof(__le16); i++)
629 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
630 } else {
631 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
632 *dst_value = cpu_to_le32(*(u32 *)value);
633 }
634
635 #ifdef DEBUG
636 devdbg(dev, "info buffer (len: %d):", info_len);
637 for (i = 0; i < info_len; i += 12) {
638 u32 *tmp = (u32 *)((u8 *)infobuf + i);
639 devdbg(dev, "%08X:%08X:%08X",
640 cpu_to_be32(tmp[0]),
641 cpu_to_be32(tmp[1]),
642 cpu_to_be32(tmp[2]));
643 }
644 #endif
645
646 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
647 infobuf, info_len);
648 if (ret != 0)
649 devdbg(dev, "setting rndis config paramater failed, %d.", ret);
650
651 kfree(infobuf);
652 return ret;
653 }
654
655 static int rndis_set_config_parameter_str(struct usbnet *dev,
656 char *param, char *value)
657 {
658 return(rndis_set_config_parameter(dev, param, 2, value));
659 }
660
661 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
662 char *param, u32 value)
663 {
664 return(rndis_set_config_parameter(dev, param, 0, &value));
665 }*/
666
667
668 /*
669 * data conversion functions
670 */
671 static int level_to_qual(int level)
672 {
673 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
674 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
675 }
676
677
678 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
679 {
680 freq->e = 0;
681 freq->i = 0;
682 freq->flags = 0;
683
684 /* see comment in wireless.h above the "struct iw_freq"
685 * definition for an explanation of this if
686 * NOTE: 1000000 is due to the kHz
687 */
688 if (dsconfig > 1000000) {
689 freq->m = dsconfig / 10;
690 freq->e = 1;
691 } else
692 freq->m = dsconfig;
693
694 /* convert from kHz to Hz */
695 freq->e += 3;
696 }
697
698
699 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
700 {
701 if (freq->m < 1000 && freq->e == 0) {
702 if (freq->m >= 1 && freq->m <= 14)
703 *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
704 else
705 return -1;
706 } else {
707 int i;
708 *dsconfig = freq->m;
709 for (i = freq->e; i > 0; i--)
710 *dsconfig *= 10;
711 *dsconfig /= 1000;
712 }
713
714 return 0;
715 }
716
717
718 /*
719 * common functions
720 */
721 static int
722 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
723
724 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
725 {
726 int ret, len;
727
728 len = sizeof(*ssid);
729 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
730
731 if (ret != 0)
732 ssid->length = 0;
733
734 #ifdef DEBUG
735 {
736 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
737
738 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
739 tmp[le32_to_cpu(ssid->length)] = 0;
740 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
741 }
742 #endif
743 return ret;
744 }
745
746
747 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
748 {
749 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
750 int ret;
751
752 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
753 if (ret == 0) {
754 memcpy(&priv->essid, ssid, sizeof(priv->essid));
755 priv->radio_on = 1;
756 devdbg(usbdev, "set_essid: radio_on = 1");
757 }
758
759 return ret;
760 }
761
762
763 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
764 {
765 int ret, len;
766
767 len = ETH_ALEN;
768 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
769
770 if (ret != 0)
771 memset(bssid, 0, ETH_ALEN);
772
773 return ret;
774 }
775
776 static int get_association_info(struct usbnet *usbdev,
777 struct ndis_80211_assoc_info *info, int len)
778 {
779 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
780 info, &len);
781 }
782
783 static int is_associated(struct usbnet *usbdev)
784 {
785 u8 bssid[ETH_ALEN];
786 int ret;
787
788 ret = get_bssid(usbdev, bssid);
789
790 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
791 }
792
793
794 static int disassociate(struct usbnet *usbdev, int reset_ssid)
795 {
796 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
797 struct ndis_80211_ssid ssid;
798 int i, ret = 0;
799
800 if (priv->radio_on) {
801 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
802 if (ret == 0) {
803 priv->radio_on = 0;
804 devdbg(usbdev, "disassociate: radio_on = 0");
805
806 if (reset_ssid)
807 msleep(100);
808 }
809 }
810
811 /* disassociate causes radio to be turned off; if reset_ssid
812 * is given, set random ssid to enable radio */
813 if (reset_ssid) {
814 ssid.length = cpu_to_le32(sizeof(ssid.essid));
815 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
816 ssid.essid[0] = 0x1;
817 ssid.essid[1] = 0xff;
818 for (i = 2; i < sizeof(ssid.essid); i++)
819 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
820 ret = set_essid(usbdev, &ssid);
821 }
822 return ret;
823 }
824
825
826 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
827 {
828 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
829 __le32 tmp;
830 int auth_mode, ret;
831
832 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
833 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
834
835 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
836 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
837 auth_mode = ndis_80211_auth_wpa2;
838 else
839 auth_mode = ndis_80211_auth_wpa2_psk;
840 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
841 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
842 auth_mode = ndis_80211_auth_wpa;
843 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
844 auth_mode = ndis_80211_auth_wpa_psk;
845 else
846 auth_mode = ndis_80211_auth_wpa_none;
847 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
848 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
849 auth_mode = ndis_80211_auth_auto_switch;
850 else
851 auth_mode = ndis_80211_auth_shared;
852 } else
853 auth_mode = ndis_80211_auth_open;
854
855 tmp = cpu_to_le32(auth_mode);
856 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
857 sizeof(tmp));
858 if (ret != 0) {
859 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
860 return ret;
861 }
862
863 priv->wpa_version = wpa_version;
864 priv->wpa_authalg = authalg;
865 return 0;
866 }
867
868
869 static int set_priv_filter(struct usbnet *usbdev)
870 {
871 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
872 __le32 tmp;
873
874 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
875
876 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
877 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
878 tmp = cpu_to_le32(ndis_80211_priv_8021x_wep);
879 else
880 tmp = cpu_to_le32(ndis_80211_priv_accept_all);
881
882 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
883 sizeof(tmp));
884 }
885
886
887 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
888 {
889 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
890 __le32 tmp;
891 int encr_mode, ret;
892
893 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
894 pairwise,
895 groupwise);
896
897 if (pairwise & IW_AUTH_CIPHER_CCMP)
898 encr_mode = ndis_80211_encr_ccmp_enabled;
899 else if (pairwise & IW_AUTH_CIPHER_TKIP)
900 encr_mode = ndis_80211_encr_tkip_enabled;
901 else if (pairwise &
902 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
903 encr_mode = ndis_80211_encr_wep_enabled;
904 else if (groupwise & IW_AUTH_CIPHER_CCMP)
905 encr_mode = ndis_80211_encr_ccmp_enabled;
906 else if (groupwise & IW_AUTH_CIPHER_TKIP)
907 encr_mode = ndis_80211_encr_tkip_enabled;
908 else
909 encr_mode = ndis_80211_encr_disabled;
910
911 tmp = cpu_to_le32(encr_mode);
912 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
913 sizeof(tmp));
914 if (ret != 0) {
915 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
916 return ret;
917 }
918
919 priv->wpa_cipher_pair = pairwise;
920 priv->wpa_cipher_group = groupwise;
921 return 0;
922 }
923
924
925 static int set_assoc_params(struct usbnet *usbdev)
926 {
927 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
928
929 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
930 set_priv_filter(usbdev);
931 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
932
933 return 0;
934 }
935
936
937 static int set_infra_mode(struct usbnet *usbdev, int mode)
938 {
939 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
940 __le32 tmp;
941 int ret, i;
942
943 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
944
945 tmp = cpu_to_le32(mode);
946 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
947 sizeof(tmp));
948 if (ret != 0) {
949 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
950 return ret;
951 }
952
953 /* NDIS drivers clear keys when infrastructure mode is
954 * changed. But Linux tools assume otherwise. So set the
955 * keys */
956 if (priv->wpa_keymgmt == 0 ||
957 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
958 for (i = 0; i < 4; i++) {
959 if (priv->encr_key_len[i] > 0)
960 add_wep_key(usbdev, priv->encr_keys[i],
961 priv->encr_key_len[i], i);
962 }
963 }
964
965 priv->infra_mode = mode;
966 return 0;
967 }
968
969
970 static void set_default_iw_params(struct usbnet *usbdev)
971 {
972 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
973
974 priv->wpa_keymgmt = 0;
975 priv->wpa_version = 0;
976
977 set_infra_mode(usbdev, ndis_80211_infra_infra);
978 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
979 IW_AUTH_ALG_OPEN_SYSTEM);
980 set_priv_filter(usbdev);
981 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
982 }
983
984
985 static int deauthenticate(struct usbnet *usbdev)
986 {
987 int ret;
988
989 ret = disassociate(usbdev, 1);
990 set_default_iw_params(usbdev);
991 return ret;
992 }
993
994
995 /* index must be 0 - N, as per NDIS */
996 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
997 {
998 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
999 struct ndis_80211_wep_key ndis_key;
1000 int ret;
1001
1002 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
1003 return -EINVAL;
1004
1005 memset(&ndis_key, 0, sizeof(ndis_key));
1006
1007 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1008 ndis_key.length = cpu_to_le32(key_len);
1009 ndis_key.index = cpu_to_le32(index);
1010 memcpy(&ndis_key.material, key, key_len);
1011
1012 if (index == priv->encr_tx_key_index) {
1013 ndis_key.index |= ndis_80211_addwep_transmit_key;
1014 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1015 IW_AUTH_CIPHER_NONE);
1016 if (ret)
1017 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1018 ret);
1019 }
1020
1021 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1022 sizeof(ndis_key));
1023 if (ret != 0) {
1024 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1025 index+1, ret);
1026 return ret;
1027 }
1028
1029 priv->encr_key_len[index] = key_len;
1030 memcpy(&priv->encr_keys[index], key, key_len);
1031
1032 return 0;
1033 }
1034
1035
1036 /* remove_key is for both wep and wpa */
1037 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1038 {
1039 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1040 struct ndis_80211_remove_key remove_key;
1041 __le32 keyindex;
1042 int ret;
1043
1044 if (priv->encr_key_len[index] == 0)
1045 return 0;
1046
1047 priv->encr_key_len[index] = 0;
1048 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1049
1050 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
1051 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
1052 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
1053 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
1054 remove_key.size = cpu_to_le32(sizeof(remove_key));
1055 remove_key.index = cpu_to_le32(index);
1056 if (bssid) {
1057 /* pairwise key */
1058 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
1059 remove_key.index |=
1060 ndis_80211_addkey_pairwise_key;
1061 memcpy(remove_key.bssid, bssid,
1062 sizeof(remove_key.bssid));
1063 } else
1064 memset(remove_key.bssid, 0xff,
1065 sizeof(remove_key.bssid));
1066
1067 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1068 sizeof(remove_key));
1069 if (ret != 0)
1070 return ret;
1071 } else {
1072 keyindex = cpu_to_le32(index);
1073 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1074 sizeof(keyindex));
1075 if (ret != 0) {
1076 devwarn(usbdev,
1077 "removing encryption key %d failed (%08X)",
1078 index, ret);
1079 return ret;
1080 }
1081 }
1082
1083 /* if it is transmit key, disable encryption */
1084 if (index == priv->encr_tx_key_index)
1085 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1086
1087 return 0;
1088 }
1089
1090
1091 static void set_multicast_list(struct usbnet *usbdev)
1092 {
1093 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1094 struct dev_mc_list *mclist;
1095 __le32 filter;
1096 int ret, i, size;
1097 char *buf;
1098
1099 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1100
1101 if (usbdev->net->flags & IFF_PROMISC) {
1102 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1103 RNDIS_PACKET_TYPE_ALL_LOCAL;
1104 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1105 usbdev->net->mc_count > priv->multicast_size) {
1106 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1107 } else if (usbdev->net->mc_count > 0) {
1108 size = min(priv->multicast_size, usbdev->net->mc_count);
1109 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1110 if (!buf) {
1111 devwarn(usbdev,
1112 "couldn't alloc %d bytes of memory",
1113 size * ETH_ALEN);
1114 return;
1115 }
1116
1117 mclist = usbdev->net->mc_list;
1118 for (i = 0; i < size && mclist; mclist = mclist->next) {
1119 if (mclist->dmi_addrlen != ETH_ALEN)
1120 continue;
1121
1122 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1123 i++;
1124 }
1125
1126 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1127 i * ETH_ALEN);
1128 if (ret == 0 && i > 0)
1129 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1130 else
1131 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1132
1133 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1134 i, priv->multicast_size, ret);
1135
1136 kfree(buf);
1137 }
1138
1139 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1140 sizeof(filter));
1141 if (ret < 0) {
1142 devwarn(usbdev, "couldn't set packet filter: %08x",
1143 le32_to_cpu(filter));
1144 }
1145
1146 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1147 le32_to_cpu(filter), ret);
1148 }
1149
1150
1151 /*
1152 * cfg80211 ops
1153 */
1154 static int rndis_change_virtual_intf(struct wiphy *wiphy, int ifindex,
1155 enum nl80211_iftype type, u32 *flags,
1156 struct vif_params *params)
1157 {
1158 struct net_device *dev;
1159 struct usbnet *usbdev;
1160 int mode;
1161
1162 /* we're under RTNL */
1163 dev = __dev_get_by_index(&init_net, ifindex);
1164 if (!dev)
1165 return -ENODEV;
1166 usbdev = netdev_priv(dev);
1167
1168 switch (type) {
1169 case NL80211_IFTYPE_ADHOC:
1170 mode = ndis_80211_infra_adhoc;
1171 break;
1172 case NL80211_IFTYPE_STATION:
1173 mode = ndis_80211_infra_infra;
1174 break;
1175 default:
1176 return -EINVAL;
1177 }
1178
1179 return set_infra_mode(usbdev, mode);
1180 }
1181
1182
1183 #define SCAN_DELAY_JIFFIES (HZ)
1184 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1185 struct cfg80211_scan_request *request)
1186 {
1187 struct usbnet *usbdev = netdev_priv(dev);
1188 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1189 int ret;
1190 __le32 tmp;
1191
1192 devdbg(usbdev, "cfg80211.scan");
1193
1194 if (!request)
1195 return -EINVAL;
1196
1197 if (priv->scan_request && priv->scan_request != request)
1198 return -EBUSY;
1199
1200 priv->scan_request = request;
1201
1202 tmp = cpu_to_le32(1);
1203 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1204 sizeof(tmp));
1205 if (ret == 0) {
1206 /* Wait before retrieving scan results from device */
1207 queue_delayed_work(priv->workqueue, &priv->scan_work,
1208 SCAN_DELAY_JIFFIES);
1209 }
1210
1211 return ret;
1212 }
1213
1214
1215 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1216 struct ndis_80211_bssid_ex *bssid)
1217 {
1218 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1219 struct ieee80211_channel *channel;
1220 s32 signal;
1221 u64 timestamp;
1222 u16 capability;
1223 u16 beacon_interval;
1224 struct ndis_80211_fixed_ies *fixed;
1225 int ie_len, bssid_len;
1226 u8 *ie;
1227
1228 /* parse bssid structure */
1229 bssid_len = le32_to_cpu(bssid->length);
1230
1231 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1232 sizeof(struct ndis_80211_fixed_ies))
1233 return NULL;
1234
1235 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1236
1237 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1238 ie_len = min(bssid_len - (int)sizeof(*bssid),
1239 (int)le32_to_cpu(bssid->ie_length));
1240 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1241 if (ie_len < 0)
1242 return NULL;
1243
1244 /* extract data for cfg80211_inform_bss */
1245 channel = ieee80211_get_channel(priv->wdev.wiphy,
1246 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1247 if (!channel)
1248 return NULL;
1249
1250 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1251 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1252 capability = le16_to_cpu(fixed->capabilities);
1253 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1254
1255 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1256 timestamp, capability, beacon_interval, ie, ie_len, signal,
1257 GFP_KERNEL);
1258 }
1259
1260
1261 static int rndis_check_bssid_list(struct usbnet *usbdev)
1262 {
1263 void *buf = NULL;
1264 struct ndis_80211_bssid_list_ex *bssid_list;
1265 struct ndis_80211_bssid_ex *bssid;
1266 int ret = -EINVAL, len, count, bssid_len;
1267
1268 devdbg(usbdev, "check_bssid_list");
1269
1270 len = CONTROL_BUFFER_SIZE;
1271 buf = kmalloc(len, GFP_KERNEL);
1272 if (!buf) {
1273 ret = -ENOMEM;
1274 goto out;
1275 }
1276
1277 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1278 if (ret != 0)
1279 goto out;
1280
1281 bssid_list = buf;
1282 bssid = bssid_list->bssid;
1283 bssid_len = le32_to_cpu(bssid->length);
1284 count = le32_to_cpu(bssid_list->num_items);
1285 devdbg(usbdev, "check_bssid_list: %d BSSIDs found", count);
1286
1287 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1288 rndis_bss_info_update(usbdev, bssid);
1289
1290 bssid = (void *)bssid + bssid_len;
1291 bssid_len = le32_to_cpu(bssid->length);
1292 count--;
1293 }
1294
1295 out:
1296 kfree(buf);
1297 return ret;
1298 }
1299
1300
1301 static void rndis_get_scan_results(struct work_struct *work)
1302 {
1303 struct rndis_wext_private *priv =
1304 container_of(work, struct rndis_wext_private, scan_work.work);
1305 struct usbnet *usbdev = priv->usbdev;
1306 int ret;
1307
1308 devdbg(usbdev, "get_scan_results");
1309
1310 ret = rndis_check_bssid_list(usbdev);
1311
1312 cfg80211_scan_done(priv->scan_request, ret < 0);
1313
1314 priv->scan_request = NULL;
1315 }
1316
1317
1318 /*
1319 * wireless extension handlers
1320 */
1321
1322 static int rndis_iw_commit(struct net_device *dev,
1323 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1324 {
1325 /* dummy op */
1326 return 0;
1327 }
1328
1329
1330 static int rndis_iw_set_essid(struct net_device *dev,
1331 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1332 {
1333 struct ndis_80211_ssid ssid;
1334 int length = wrqu->essid.length;
1335 struct usbnet *usbdev = netdev_priv(dev);
1336
1337 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1338 wrqu->essid.flags, wrqu->essid.length, essid);
1339
1340 if (length > NDIS_802_11_LENGTH_SSID)
1341 length = NDIS_802_11_LENGTH_SSID;
1342
1343 ssid.length = cpu_to_le32(length);
1344 if (length > 0)
1345 memcpy(ssid.essid, essid, length);
1346 else
1347 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1348
1349 set_assoc_params(usbdev);
1350
1351 if (!wrqu->essid.flags || length == 0)
1352 return disassociate(usbdev, 1);
1353 else
1354 return set_essid(usbdev, &ssid);
1355 }
1356
1357
1358 static int rndis_iw_get_essid(struct net_device *dev,
1359 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1360 {
1361 struct ndis_80211_ssid ssid;
1362 struct usbnet *usbdev = netdev_priv(dev);
1363 int ret;
1364
1365 ret = get_essid(usbdev, &ssid);
1366
1367 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1368 wrqu->essid.flags = 1;
1369 wrqu->essid.length = le32_to_cpu(ssid.length);
1370 memcpy(essid, ssid.essid, wrqu->essid.length);
1371 essid[wrqu->essid.length] = 0;
1372 } else {
1373 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1374 wrqu->essid.flags = 0;
1375 wrqu->essid.length = 0;
1376 }
1377 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1378 return ret;
1379 }
1380
1381
1382 static int rndis_iw_get_bssid(struct net_device *dev,
1383 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1384 {
1385 struct usbnet *usbdev = netdev_priv(dev);
1386 unsigned char bssid[ETH_ALEN];
1387 int ret;
1388
1389 ret = get_bssid(usbdev, bssid);
1390
1391 if (ret == 0)
1392 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1393 else
1394 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1395
1396 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1397 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1398
1399 return ret;
1400 }
1401
1402
1403 static int rndis_iw_set_bssid(struct net_device *dev,
1404 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1405 {
1406 struct usbnet *usbdev = netdev_priv(dev);
1407 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1408 int ret;
1409
1410 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1411
1412 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1413
1414 /* user apps may set ap's mac address, which is not required;
1415 * they may fail to work if this function fails, so return
1416 * success */
1417 if (ret)
1418 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1419
1420 return 0;
1421 }
1422
1423
1424 static int rndis_iw_set_auth(struct net_device *dev,
1425 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1426 {
1427 struct iw_param *p = &wrqu->param;
1428 struct usbnet *usbdev = netdev_priv(dev);
1429 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1430 int ret = -ENOTSUPP;
1431
1432 switch (p->flags & IW_AUTH_INDEX) {
1433 case IW_AUTH_WPA_VERSION:
1434 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1435 priv->wpa_version = p->value;
1436 ret = 0;
1437 break;
1438
1439 case IW_AUTH_CIPHER_PAIRWISE:
1440 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1441 priv->wpa_cipher_pair = p->value;
1442 ret = 0;
1443 break;
1444
1445 case IW_AUTH_CIPHER_GROUP:
1446 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1447 priv->wpa_cipher_group = p->value;
1448 ret = 0;
1449 break;
1450
1451 case IW_AUTH_KEY_MGMT:
1452 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1453 priv->wpa_keymgmt = p->value;
1454 ret = 0;
1455 break;
1456
1457 case IW_AUTH_TKIP_COUNTERMEASURES:
1458 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1459 p->value);
1460 ret = 0;
1461 break;
1462
1463 case IW_AUTH_DROP_UNENCRYPTED:
1464 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1465 ret = 0;
1466 break;
1467
1468 case IW_AUTH_80211_AUTH_ALG:
1469 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1470 priv->wpa_authalg = p->value;
1471 ret = 0;
1472 break;
1473
1474 case IW_AUTH_WPA_ENABLED:
1475 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1476 if (wrqu->param.value)
1477 deauthenticate(usbdev);
1478 ret = 0;
1479 break;
1480
1481 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1482 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1483 p->value);
1484 ret = 0;
1485 break;
1486
1487 case IW_AUTH_ROAMING_CONTROL:
1488 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1489 ret = 0;
1490 break;
1491
1492 case IW_AUTH_PRIVACY_INVOKED:
1493 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1494 wrqu->param.flags & IW_AUTH_INDEX);
1495 return -EOPNOTSUPP;
1496
1497 default:
1498 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1499 p->flags & IW_AUTH_INDEX, p->value);
1500 }
1501 return ret;
1502 }
1503
1504
1505 static int rndis_iw_get_auth(struct net_device *dev,
1506 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1507 {
1508 struct iw_param *p = &wrqu->param;
1509 struct usbnet *usbdev = netdev_priv(dev);
1510 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1511
1512 switch (p->flags & IW_AUTH_INDEX) {
1513 case IW_AUTH_WPA_VERSION:
1514 p->value = priv->wpa_version;
1515 break;
1516 case IW_AUTH_CIPHER_PAIRWISE:
1517 p->value = priv->wpa_cipher_pair;
1518 break;
1519 case IW_AUTH_CIPHER_GROUP:
1520 p->value = priv->wpa_cipher_group;
1521 break;
1522 case IW_AUTH_KEY_MGMT:
1523 p->value = priv->wpa_keymgmt;
1524 break;
1525 case IW_AUTH_80211_AUTH_ALG:
1526 p->value = priv->wpa_authalg;
1527 break;
1528 default:
1529 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1530 wrqu->param.flags & IW_AUTH_INDEX);
1531 return -EOPNOTSUPP;
1532 }
1533 return 0;
1534 }
1535
1536
1537 static int rndis_iw_set_encode(struct net_device *dev,
1538 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1539 {
1540 struct usbnet *usbdev = netdev_priv(dev);
1541 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1542 int ret, index, key_len;
1543 u8 *key;
1544
1545 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1546
1547 /* iwconfig gives index as 1 - N */
1548 if (index > 0)
1549 index--;
1550 else
1551 index = priv->encr_tx_key_index;
1552
1553 if (index < 0 || index >= 4) {
1554 devwarn(usbdev, "encryption index out of range (%u)", index);
1555 return -EINVAL;
1556 }
1557
1558 /* remove key if disabled */
1559 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1560 if (remove_key(usbdev, index, NULL))
1561 return -EINVAL;
1562 else
1563 return 0;
1564 }
1565
1566 /* global encryption state (for all keys) */
1567 if (wrqu->data.flags & IW_ENCODE_OPEN)
1568 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1569 IW_AUTH_ALG_OPEN_SYSTEM);
1570 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1571 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1572 IW_AUTH_ALG_SHARED_KEY);
1573 if (ret != 0)
1574 return ret;
1575
1576 if (wrqu->data.length > 0) {
1577 key_len = wrqu->data.length;
1578 key = extra;
1579 } else {
1580 /* must be set as tx key */
1581 if (priv->encr_key_len[index] == 0)
1582 return -EINVAL;
1583 key_len = priv->encr_key_len[index];
1584 key = priv->encr_keys[index];
1585 priv->encr_tx_key_index = index;
1586 }
1587
1588 if (add_wep_key(usbdev, key, key_len, index) != 0)
1589 return -EINVAL;
1590
1591 if (index == priv->encr_tx_key_index)
1592 /* ndis drivers want essid to be set after setting encr */
1593 set_essid(usbdev, &priv->essid);
1594
1595 return 0;
1596 }
1597
1598
1599 static int rndis_iw_set_encode_ext(struct net_device *dev,
1600 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1601 {
1602 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1603 struct usbnet *usbdev = netdev_priv(dev);
1604 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1605 struct ndis_80211_key ndis_key;
1606 int keyidx, ret;
1607 u8 *addr;
1608
1609 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1610
1611 /* iwconfig gives index as 1 - N */
1612 if (keyidx)
1613 keyidx--;
1614 else
1615 keyidx = priv->encr_tx_key_index;
1616
1617 if (keyidx < 0 || keyidx >= 4)
1618 return -EINVAL;
1619
1620 if (ext->alg == WPA_ALG_WEP) {
1621 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1622 priv->encr_tx_key_index = keyidx;
1623 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1624 }
1625
1626 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1627 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1628 return remove_key(usbdev, keyidx, NULL);
1629
1630 if (ext->key_len > sizeof(ndis_key.material))
1631 return -1;
1632
1633 memset(&ndis_key, 0, sizeof(ndis_key));
1634
1635 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1636 sizeof(ndis_key.material) + ext->key_len);
1637 ndis_key.length = cpu_to_le32(ext->key_len);
1638 ndis_key.index = cpu_to_le32(keyidx);
1639
1640 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
1641 memcpy(ndis_key.rsc, ext->rx_seq, 6);
1642 ndis_key.index |= ndis_80211_addkey_set_init_recv_seq;
1643 }
1644
1645 addr = ext->addr.sa_data;
1646 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
1647 /* group key */
1648 if (priv->infra_mode == ndis_80211_infra_adhoc)
1649 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1650 else
1651 get_bssid(usbdev, ndis_key.bssid);
1652 } else {
1653 /* pairwise key */
1654 ndis_key.index |= ndis_80211_addkey_pairwise_key;
1655 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1656 }
1657
1658 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1659 ndis_key.index |= ndis_80211_addkey_transmit_key;
1660
1661 if (ext->alg == IW_ENCODE_ALG_TKIP && ext->key_len == 32) {
1662 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1663 * different order than NDIS spec, so swap the order here. */
1664 memcpy(ndis_key.material, ext->key, 16);
1665 memcpy(ndis_key.material + 16, ext->key + 24, 8);
1666 memcpy(ndis_key.material + 24, ext->key + 16, 8);
1667 } else
1668 memcpy(ndis_key.material, ext->key, ext->key_len);
1669
1670 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1671 le32_to_cpu(ndis_key.size));
1672 devdbg(usbdev, "SIOCSIWENCODEEXT: OID_802_11_ADD_KEY -> %08X", ret);
1673 if (ret != 0)
1674 return ret;
1675
1676 priv->encr_key_len[keyidx] = ext->key_len;
1677 memcpy(&priv->encr_keys[keyidx], ndis_key.material, ext->key_len);
1678 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1679 priv->encr_tx_key_index = keyidx;
1680
1681 return 0;
1682 }
1683
1684
1685 static int rndis_iw_set_genie(struct net_device *dev,
1686 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1687 {
1688 struct usbnet *usbdev = netdev_priv(dev);
1689 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1690 int ret = 0;
1691
1692 #ifdef DEBUG
1693 int j;
1694 u8 *gie = extra;
1695 for (j = 0; j < wrqu->data.length; j += 8)
1696 devdbg(usbdev,
1697 "SIOCSIWGENIE %04x - "
1698 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1699 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1700 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1701 #endif
1702 /* clear existing IEs */
1703 if (priv->wpa_ie_len) {
1704 kfree(priv->wpa_ie);
1705 priv->wpa_ie_len = 0;
1706 }
1707
1708 /* set new IEs */
1709 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1710 if (priv->wpa_ie) {
1711 priv->wpa_ie_len = wrqu->data.length;
1712 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1713 } else
1714 ret = -ENOMEM;
1715 return ret;
1716 }
1717
1718
1719 static int rndis_iw_get_genie(struct net_device *dev,
1720 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1721 {
1722 struct usbnet *usbdev = netdev_priv(dev);
1723 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1724
1725 devdbg(usbdev, "SIOCGIWGENIE");
1726
1727 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1728 wrqu->data.length = 0;
1729 return 0;
1730 }
1731
1732 if (wrqu->data.length < priv->wpa_ie_len)
1733 return -E2BIG;
1734
1735 wrqu->data.length = priv->wpa_ie_len;
1736 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1737
1738 return 0;
1739 }
1740
1741
1742 static int rndis_iw_set_rts(struct net_device *dev,
1743 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1744 {
1745 struct usbnet *usbdev = netdev_priv(dev);
1746 __le32 tmp;
1747 devdbg(usbdev, "SIOCSIWRTS");
1748
1749 tmp = cpu_to_le32(wrqu->rts.value);
1750 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1751 sizeof(tmp));
1752 }
1753
1754
1755 static int rndis_iw_get_rts(struct net_device *dev,
1756 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1757 {
1758 struct usbnet *usbdev = netdev_priv(dev);
1759 __le32 tmp;
1760 int len, ret;
1761
1762 len = sizeof(tmp);
1763 ret = rndis_query_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp, &len);
1764 if (ret == 0) {
1765 wrqu->rts.value = le32_to_cpu(tmp);
1766 wrqu->rts.flags = 1;
1767 wrqu->rts.disabled = 0;
1768 }
1769
1770 devdbg(usbdev, "SIOCGIWRTS: %d", wrqu->rts.value);
1771
1772 return ret;
1773 }
1774
1775
1776 static int rndis_iw_set_frag(struct net_device *dev,
1777 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1778 {
1779 struct usbnet *usbdev = netdev_priv(dev);
1780 __le32 tmp;
1781
1782 devdbg(usbdev, "SIOCSIWFRAG");
1783
1784 tmp = cpu_to_le32(wrqu->frag.value);
1785 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1786 sizeof(tmp));
1787 }
1788
1789
1790 static int rndis_iw_get_frag(struct net_device *dev,
1791 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1792 {
1793 struct usbnet *usbdev = netdev_priv(dev);
1794 __le32 tmp;
1795 int len, ret;
1796
1797 len = sizeof(tmp);
1798 ret = rndis_query_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1799 &len);
1800 if (ret == 0) {
1801 wrqu->frag.value = le32_to_cpu(tmp);
1802 wrqu->frag.flags = 1;
1803 wrqu->frag.disabled = 0;
1804 }
1805 devdbg(usbdev, "SIOCGIWFRAG: %d", wrqu->frag.value);
1806 return ret;
1807 }
1808
1809
1810 static int rndis_iw_set_freq(struct net_device *dev,
1811 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1812 {
1813 struct usbnet *usbdev = netdev_priv(dev);
1814 struct ndis_80211_conf config;
1815 unsigned int dsconfig;
1816 int len, ret;
1817
1818 /* this OID is valid only when not associated */
1819 if (is_associated(usbdev))
1820 return 0;
1821
1822 dsconfig = 0;
1823 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
1824 return -EINVAL;
1825
1826 len = sizeof(config);
1827 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1828 if (ret != 0) {
1829 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
1830 return 0;
1831 }
1832
1833 config.ds_config = cpu_to_le32(dsconfig);
1834
1835 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
1836 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1837 sizeof(config));
1838 }
1839
1840
1841 static int rndis_iw_get_freq(struct net_device *dev,
1842 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1843 {
1844 struct usbnet *usbdev = netdev_priv(dev);
1845 struct ndis_80211_conf config;
1846 int len, ret;
1847
1848 len = sizeof(config);
1849 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1850 if (ret == 0)
1851 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
1852
1853 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
1854 return ret;
1855 }
1856
1857
1858 static int rndis_iw_get_txpower(struct net_device *dev,
1859 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1860 {
1861 struct usbnet *usbdev = netdev_priv(dev);
1862 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1863 __le32 tx_power;
1864
1865 if (priv->radio_on) {
1866 /* fake since changing tx_power (by userlevel) not supported */
1867 tx_power = cpu_to_le32(get_bcm4320_power(priv));
1868
1869 wrqu->txpower.flags = IW_TXPOW_MWATT;
1870 wrqu->txpower.value = le32_to_cpu(tx_power);
1871 wrqu->txpower.disabled = 0;
1872 } else {
1873 wrqu->txpower.flags = IW_TXPOW_MWATT;
1874 wrqu->txpower.value = 0;
1875 wrqu->txpower.disabled = 1;
1876 }
1877
1878 devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
1879
1880 return 0;
1881 }
1882
1883
1884 static int rndis_iw_set_txpower(struct net_device *dev,
1885 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1886 {
1887 struct usbnet *usbdev = netdev_priv(dev);
1888 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1889 __le32 tx_power = 0;
1890
1891 if (!wrqu->txpower.disabled) {
1892 if (wrqu->txpower.flags == IW_TXPOW_MWATT)
1893 tx_power = cpu_to_le32(wrqu->txpower.value);
1894 else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
1895 if (wrqu->txpower.value > 20)
1896 tx_power = cpu_to_le32(128);
1897 else if (wrqu->txpower.value < -43)
1898 tx_power = cpu_to_le32(127);
1899 else {
1900 signed char tmp;
1901 tmp = wrqu->txpower.value;
1902 tmp = -12 - tmp;
1903 tmp <<= 2;
1904 tx_power = cpu_to_le32((unsigned char)tmp);
1905 }
1906 }
1907 }
1908
1909 devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
1910
1911 if (le32_to_cpu(tx_power) != 0) {
1912 /* txpower unsupported, just turn radio on */
1913 if (!priv->radio_on)
1914 return disassociate(usbdev, 1);
1915 return 0; /* all ready on */
1916 }
1917
1918 /* tx_power == 0, turn off radio */
1919 return disassociate(usbdev, 0);
1920 }
1921
1922
1923 static int rndis_iw_get_rate(struct net_device *dev,
1924 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1925 {
1926 struct usbnet *usbdev = netdev_priv(dev);
1927 __le32 tmp;
1928 int ret, len;
1929
1930 len = sizeof(tmp);
1931 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
1932 if (ret == 0) {
1933 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
1934 wrqu->bitrate.disabled = 0;
1935 wrqu->bitrate.flags = 1;
1936 }
1937 return ret;
1938 }
1939
1940
1941 static int rndis_iw_set_mlme(struct net_device *dev,
1942 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1943 {
1944 struct usbnet *usbdev = netdev_priv(dev);
1945 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1946 struct iw_mlme *mlme = (struct iw_mlme *)extra;
1947 unsigned char bssid[ETH_ALEN];
1948
1949 get_bssid(usbdev, bssid);
1950
1951 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
1952 return -EINVAL;
1953
1954 switch (mlme->cmd) {
1955 case IW_MLME_DEAUTH:
1956 return deauthenticate(usbdev);
1957 case IW_MLME_DISASSOC:
1958 return disassociate(usbdev, priv->radio_on);
1959 default:
1960 return -EOPNOTSUPP;
1961 }
1962
1963 return 0;
1964 }
1965
1966
1967 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
1968 {
1969 struct usbnet *usbdev = netdev_priv(dev);
1970 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1971 unsigned long flags;
1972
1973 spin_lock_irqsave(&priv->stats_lock, flags);
1974 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
1975 spin_unlock_irqrestore(&priv->stats_lock, flags);
1976
1977 return &priv->iwstats;
1978 }
1979
1980
1981 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
1982 static const iw_handler rndis_iw_handler[] =
1983 {
1984 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
1985 IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname,
1986 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
1987 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
1988 IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode,
1989 IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode,
1990 IW_IOCTL(SIOCGIWRANGE) = (iw_handler) cfg80211_wext_giwrange,
1991 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
1992 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
1993 IW_IOCTL(SIOCSIWSCAN) = (iw_handler) cfg80211_wext_siwscan,
1994 IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan,
1995 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
1996 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
1997 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
1998 IW_IOCTL(SIOCSIWRTS) = rndis_iw_set_rts,
1999 IW_IOCTL(SIOCGIWRTS) = rndis_iw_get_rts,
2000 IW_IOCTL(SIOCSIWFRAG) = rndis_iw_set_frag,
2001 IW_IOCTL(SIOCGIWFRAG) = rndis_iw_get_frag,
2002 IW_IOCTL(SIOCSIWTXPOW) = rndis_iw_set_txpower,
2003 IW_IOCTL(SIOCGIWTXPOW) = rndis_iw_get_txpower,
2004 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2005 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2006 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2007 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2008 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2009 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2010 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2011 };
2012
2013 static const iw_handler rndis_wext_private_handler[] = {
2014 };
2015
2016 static const struct iw_priv_args rndis_wext_private_args[] = {
2017 };
2018
2019
2020 static const struct iw_handler_def rndis_iw_handlers = {
2021 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2022 .num_private = ARRAY_SIZE(rndis_wext_private_handler),
2023 .num_private_args = ARRAY_SIZE(rndis_wext_private_args),
2024 .standard = (iw_handler *)rndis_iw_handler,
2025 .private = (iw_handler *)rndis_wext_private_handler,
2026 .private_args = (struct iw_priv_args *)rndis_wext_private_args,
2027 .get_wireless_stats = rndis_get_wireless_stats,
2028 };
2029
2030
2031 static void rndis_wext_worker(struct work_struct *work)
2032 {
2033 struct rndis_wext_private *priv =
2034 container_of(work, struct rndis_wext_private, work);
2035 struct usbnet *usbdev = priv->usbdev;
2036 union iwreq_data evt;
2037 unsigned char bssid[ETH_ALEN];
2038 struct ndis_80211_assoc_info *info;
2039 int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32;
2040 int ret, offset;
2041
2042 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) {
2043 netif_carrier_on(usbdev->net);
2044
2045 info = kzalloc(assoc_size, GFP_KERNEL);
2046 if (!info)
2047 goto get_bssid;
2048
2049 /* Get association info IEs from device and send them back to
2050 * userspace. */
2051 ret = get_association_info(usbdev, info, assoc_size);
2052 if (!ret) {
2053 evt.data.length = le32_to_cpu(info->req_ie_length);
2054 if (evt.data.length > 0) {
2055 offset = le32_to_cpu(info->offset_req_ies);
2056 wireless_send_event(usbdev->net,
2057 IWEVASSOCREQIE, &evt,
2058 (char *)info + offset);
2059 }
2060
2061 evt.data.length = le32_to_cpu(info->resp_ie_length);
2062 if (evt.data.length > 0) {
2063 offset = le32_to_cpu(info->offset_resp_ies);
2064 wireless_send_event(usbdev->net,
2065 IWEVASSOCRESPIE, &evt,
2066 (char *)info + offset);
2067 }
2068 }
2069
2070 kfree(info);
2071
2072 get_bssid:
2073 ret = get_bssid(usbdev, bssid);
2074 if (!ret) {
2075 evt.data.flags = 0;
2076 evt.data.length = 0;
2077 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2078 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2079 }
2080 }
2081
2082 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) {
2083 netif_carrier_off(usbdev->net);
2084
2085 evt.data.flags = 0;
2086 evt.data.length = 0;
2087 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2088 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2089 }
2090
2091 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2092 set_multicast_list(usbdev);
2093 }
2094
2095 static void rndis_wext_set_multicast_list(struct net_device *dev)
2096 {
2097 struct usbnet *usbdev = netdev_priv(dev);
2098 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2099
2100 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2101 return;
2102
2103 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2104 queue_work(priv->workqueue, &priv->work);
2105 }
2106
2107 static void rndis_wext_link_change(struct usbnet *usbdev, int state)
2108 {
2109 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2110
2111 /* queue work to avoid recursive calls into rndis_command */
2112 set_bit(state ? WORK_LINK_UP : WORK_LINK_DOWN, &priv->work_pending);
2113 queue_work(priv->workqueue, &priv->work);
2114 }
2115
2116
2117 static int rndis_wext_get_caps(struct usbnet *usbdev)
2118 {
2119 struct {
2120 __le32 num_items;
2121 __le32 items[8];
2122 } networks_supported;
2123 int len, retval, i, n;
2124 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2125
2126 /* determine supported modes */
2127 len = sizeof(networks_supported);
2128 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2129 &networks_supported, &len);
2130 if (retval >= 0) {
2131 n = le32_to_cpu(networks_supported.num_items);
2132 if (n > 8)
2133 n = 8;
2134 for (i = 0; i < n; i++) {
2135 switch (le32_to_cpu(networks_supported.items[i])) {
2136 case ndis_80211_type_freq_hop:
2137 case ndis_80211_type_direct_seq:
2138 priv->caps |= CAP_MODE_80211B;
2139 break;
2140 case ndis_80211_type_ofdm_a:
2141 priv->caps |= CAP_MODE_80211A;
2142 break;
2143 case ndis_80211_type_ofdm_g:
2144 priv->caps |= CAP_MODE_80211G;
2145 break;
2146 }
2147 }
2148 }
2149
2150 return retval;
2151 }
2152
2153
2154 #define STATS_UPDATE_JIFFIES (HZ)
2155 static void rndis_update_wireless_stats(struct work_struct *work)
2156 {
2157 struct rndis_wext_private *priv =
2158 container_of(work, struct rndis_wext_private, stats_work.work);
2159 struct usbnet *usbdev = priv->usbdev;
2160 struct iw_statistics iwstats;
2161 __le32 rssi, tmp;
2162 int len, ret, j;
2163 unsigned long flags;
2164 int update_jiffies = STATS_UPDATE_JIFFIES;
2165 void *buf;
2166
2167 spin_lock_irqsave(&priv->stats_lock, flags);
2168 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2169 spin_unlock_irqrestore(&priv->stats_lock, flags);
2170
2171 /* only update stats when connected */
2172 if (!is_associated(usbdev)) {
2173 iwstats.qual.qual = 0;
2174 iwstats.qual.level = 0;
2175 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2176 | IW_QUAL_LEVEL_UPDATED
2177 | IW_QUAL_NOISE_INVALID
2178 | IW_QUAL_QUAL_INVALID
2179 | IW_QUAL_LEVEL_INVALID;
2180 goto end;
2181 }
2182
2183 len = sizeof(rssi);
2184 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2185
2186 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2187 le32_to_cpu(rssi));
2188 if (ret == 0) {
2189 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2190 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2191 iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
2192 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2193 | IW_QUAL_LEVEL_UPDATED
2194 | IW_QUAL_NOISE_INVALID;
2195 }
2196
2197 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2198
2199 len = sizeof(tmp);
2200 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2201 if (ret == 0)
2202 iwstats.discard.misc += le32_to_cpu(tmp);
2203
2204 len = sizeof(tmp);
2205 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2206 if (ret == 0)
2207 iwstats.discard.misc += le32_to_cpu(tmp);
2208
2209 len = sizeof(tmp);
2210 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2211 if (ret == 0)
2212 iwstats.discard.misc += le32_to_cpu(tmp);
2213
2214 /* Workaround transfer stalls on poor quality links.
2215 * TODO: find right way to fix these stalls (as stalls do not happen
2216 * with ndiswrapper/windows driver). */
2217 if (iwstats.qual.qual <= 25) {
2218 /* Decrease stats worker interval to catch stalls.
2219 * faster. Faster than 400-500ms causes packet loss,
2220 * Slower doesn't catch stalls fast enough.
2221 */
2222 j = msecs_to_jiffies(priv->param_workaround_interval);
2223 if (j > STATS_UPDATE_JIFFIES)
2224 j = STATS_UPDATE_JIFFIES;
2225 else if (j <= 0)
2226 j = 1;
2227 update_jiffies = j;
2228
2229 /* Send scan OID. Use of both OIDs is required to get device
2230 * working.
2231 */
2232 tmp = cpu_to_le32(1);
2233 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2234 sizeof(tmp));
2235
2236 len = CONTROL_BUFFER_SIZE;
2237 buf = kmalloc(len, GFP_KERNEL);
2238 if (!buf)
2239 goto end;
2240
2241 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2242 kfree(buf);
2243 }
2244 end:
2245 spin_lock_irqsave(&priv->stats_lock, flags);
2246 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2247 spin_unlock_irqrestore(&priv->stats_lock, flags);
2248
2249 if (update_jiffies >= HZ)
2250 update_jiffies = round_jiffies_relative(update_jiffies);
2251 else {
2252 j = round_jiffies_relative(update_jiffies);
2253 if (abs(j - update_jiffies) <= 10)
2254 update_jiffies = j;
2255 }
2256
2257 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2258 }
2259
2260
2261 static int bcm4320a_early_init(struct usbnet *usbdev)
2262 {
2263 /* bcm4320a doesn't handle configuration parameters well. Try
2264 * set any and you get partially zeroed mac and broken device.
2265 */
2266
2267 return 0;
2268 }
2269
2270
2271 static int bcm4320b_early_init(struct usbnet *usbdev)
2272 {
2273 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2274 char buf[8];
2275
2276 /* Early initialization settings, setting these won't have effect
2277 * if called after generic_rndis_bind().
2278 */
2279
2280 priv->param_country[0] = modparam_country[0];
2281 priv->param_country[1] = modparam_country[1];
2282 priv->param_country[2] = 0;
2283 priv->param_frameburst = modparam_frameburst;
2284 priv->param_afterburner = modparam_afterburner;
2285 priv->param_power_save = modparam_power_save;
2286 priv->param_power_output = modparam_power_output;
2287 priv->param_roamtrigger = modparam_roamtrigger;
2288 priv->param_roamdelta = modparam_roamdelta;
2289
2290 priv->param_country[0] = toupper(priv->param_country[0]);
2291 priv->param_country[1] = toupper(priv->param_country[1]);
2292 /* doesn't support EU as country code, use FI instead */
2293 if (!strcmp(priv->param_country, "EU"))
2294 strcpy(priv->param_country, "FI");
2295
2296 if (priv->param_power_save < 0)
2297 priv->param_power_save = 0;
2298 else if (priv->param_power_save > 2)
2299 priv->param_power_save = 2;
2300
2301 if (priv->param_power_output < 0)
2302 priv->param_power_output = 0;
2303 else if (priv->param_power_output > 3)
2304 priv->param_power_output = 3;
2305
2306 if (priv->param_roamtrigger < -80)
2307 priv->param_roamtrigger = -80;
2308 else if (priv->param_roamtrigger > -60)
2309 priv->param_roamtrigger = -60;
2310
2311 if (priv->param_roamdelta < 0)
2312 priv->param_roamdelta = 0;
2313 else if (priv->param_roamdelta > 2)
2314 priv->param_roamdelta = 2;
2315
2316 if (modparam_workaround_interval < 0)
2317 priv->param_workaround_interval = 500;
2318 else
2319 priv->param_workaround_interval = modparam_workaround_interval;
2320
2321 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2322 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2323 priv->param_frameburst ? "1" : "0");
2324 rndis_set_config_parameter_str(usbdev, "Afterburner",
2325 priv->param_afterburner ? "1" : "0");
2326 sprintf(buf, "%d", priv->param_power_save);
2327 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2328 sprintf(buf, "%d", priv->param_power_output);
2329 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2330 sprintf(buf, "%d", priv->param_roamtrigger);
2331 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2332 sprintf(buf, "%d", priv->param_roamdelta);
2333 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2334
2335 return 0;
2336 }
2337
2338 /* same as rndis_netdev_ops but with local multicast handler */
2339 static const struct net_device_ops rndis_wext_netdev_ops = {
2340 .ndo_open = usbnet_open,
2341 .ndo_stop = usbnet_stop,
2342 .ndo_start_xmit = usbnet_start_xmit,
2343 .ndo_tx_timeout = usbnet_tx_timeout,
2344 .ndo_set_mac_address = eth_mac_addr,
2345 .ndo_validate_addr = eth_validate_addr,
2346 .ndo_set_multicast_list = rndis_wext_set_multicast_list,
2347 };
2348
2349
2350 static int rndis_wext_bind(struct usbnet *usbdev, struct usb_interface *intf)
2351 {
2352 struct wiphy *wiphy;
2353 struct rndis_wext_private *priv;
2354 int retval, len;
2355 __le32 tmp;
2356
2357 /* allocate wiphy and rndis private data
2358 * NOTE: We only support a single virtual interface, so wiphy
2359 * and wireless_dev are somewhat synonymous for this device.
2360 */
2361 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wext_private));
2362 if (!wiphy)
2363 return -ENOMEM;
2364
2365 priv = wiphy_priv(wiphy);
2366 usbdev->net->ieee80211_ptr = &priv->wdev;
2367 priv->wdev.wiphy = wiphy;
2368 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2369
2370 /* These have to be initialized before calling generic_rndis_bind().
2371 * Otherwise we'll be in big trouble in rndis_wext_early_init().
2372 */
2373 usbdev->driver_priv = priv;
2374 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2375 priv->usbdev = usbdev;
2376
2377 mutex_init(&priv->command_lock);
2378 spin_lock_init(&priv->stats_lock);
2379
2380 /* because rndis_command() sleeps we need to use workqueue */
2381 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2382 INIT_WORK(&priv->work, rndis_wext_worker);
2383 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2384 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2385
2386 /* try bind rndis_host */
2387 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2388 if (retval < 0)
2389 goto fail;
2390
2391 /* generic_rndis_bind set packet filter to multicast_all+
2392 * promisc mode which doesn't work well for our devices (device
2393 * picks up rssi to closest station instead of to access point).
2394 *
2395 * rndis_host wants to avoid all OID as much as possible
2396 * so do promisc/multicast handling in rndis_wext.
2397 */
2398 usbdev->net->netdev_ops = &rndis_wext_netdev_ops;
2399
2400 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2401 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2402 sizeof(tmp));
2403
2404 len = sizeof(tmp);
2405 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2406 &len);
2407 priv->multicast_size = le32_to_cpu(tmp);
2408 if (retval < 0 || priv->multicast_size < 0)
2409 priv->multicast_size = 0;
2410 if (priv->multicast_size > 0)
2411 usbdev->net->flags |= IFF_MULTICAST;
2412 else
2413 usbdev->net->flags &= ~IFF_MULTICAST;
2414
2415 priv->iwstats.qual.qual = 0;
2416 priv->iwstats.qual.level = 0;
2417 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2418 | IW_QUAL_LEVEL_UPDATED
2419 | IW_QUAL_NOISE_INVALID
2420 | IW_QUAL_QUAL_INVALID
2421 | IW_QUAL_LEVEL_INVALID;
2422
2423 /* fill-out wiphy structure and register w/ cfg80211 */
2424 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2425 wiphy->privid = rndis_wiphy_privid;
2426 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2427 | BIT(NL80211_IFTYPE_ADHOC);
2428 wiphy->max_scan_ssids = 1;
2429
2430 /* TODO: fill-out band information based on priv->caps */
2431 rndis_wext_get_caps(usbdev);
2432
2433 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2434 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2435 priv->band.channels = priv->channels;
2436 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2437 priv->band.bitrates = priv->rates;
2438 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2439 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2440 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2441
2442 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2443
2444 if (wiphy_register(wiphy)) {
2445 retval = -ENODEV;
2446 goto fail;
2447 }
2448
2449 set_default_iw_params(usbdev);
2450
2451 /* turn radio on */
2452 priv->radio_on = 1;
2453 disassociate(usbdev, 1);
2454 netif_carrier_off(usbdev->net);
2455
2456 queue_delayed_work(priv->workqueue, &priv->stats_work,
2457 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2458
2459 return 0;
2460
2461 fail:
2462 cancel_delayed_work_sync(&priv->stats_work);
2463 cancel_delayed_work_sync(&priv->scan_work);
2464 cancel_work_sync(&priv->work);
2465 flush_workqueue(priv->workqueue);
2466 destroy_workqueue(priv->workqueue);
2467
2468 wiphy_free(wiphy);
2469 return retval;
2470 }
2471
2472
2473 static void rndis_wext_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2474 {
2475 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2476
2477 /* turn radio off */
2478 disassociate(usbdev, 0);
2479
2480 cancel_delayed_work_sync(&priv->stats_work);
2481 cancel_delayed_work_sync(&priv->scan_work);
2482 cancel_work_sync(&priv->work);
2483 flush_workqueue(priv->workqueue);
2484 destroy_workqueue(priv->workqueue);
2485
2486 if (priv && priv->wpa_ie_len)
2487 kfree(priv->wpa_ie);
2488
2489 rndis_unbind(usbdev, intf);
2490
2491 wiphy_unregister(priv->wdev.wiphy);
2492 wiphy_free(priv->wdev.wiphy);
2493 }
2494
2495
2496 static int rndis_wext_reset(struct usbnet *usbdev)
2497 {
2498 return deauthenticate(usbdev);
2499 }
2500
2501
2502 static const struct driver_info bcm4320b_info = {
2503 .description = "Wireless RNDIS device, BCM4320b based",
2504 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2505 .bind = rndis_wext_bind,
2506 .unbind = rndis_wext_unbind,
2507 .status = rndis_status,
2508 .rx_fixup = rndis_rx_fixup,
2509 .tx_fixup = rndis_tx_fixup,
2510 .reset = rndis_wext_reset,
2511 .early_init = bcm4320b_early_init,
2512 .link_change = rndis_wext_link_change,
2513 };
2514
2515 static const struct driver_info bcm4320a_info = {
2516 .description = "Wireless RNDIS device, BCM4320a based",
2517 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2518 .bind = rndis_wext_bind,
2519 .unbind = rndis_wext_unbind,
2520 .status = rndis_status,
2521 .rx_fixup = rndis_rx_fixup,
2522 .tx_fixup = rndis_tx_fixup,
2523 .reset = rndis_wext_reset,
2524 .early_init = bcm4320a_early_init,
2525 .link_change = rndis_wext_link_change,
2526 };
2527
2528 static const struct driver_info rndis_wext_info = {
2529 .description = "Wireless RNDIS device",
2530 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2531 .bind = rndis_wext_bind,
2532 .unbind = rndis_wext_unbind,
2533 .status = rndis_status,
2534 .rx_fixup = rndis_rx_fixup,
2535 .tx_fixup = rndis_tx_fixup,
2536 .reset = rndis_wext_reset,
2537 .early_init = bcm4320a_early_init,
2538 .link_change = rndis_wext_link_change,
2539 };
2540
2541 /*-------------------------------------------------------------------------*/
2542
2543 static const struct usb_device_id products [] = {
2544 #define RNDIS_MASTER_INTERFACE \
2545 .bInterfaceClass = USB_CLASS_COMM, \
2546 .bInterfaceSubClass = 2 /* ACM */, \
2547 .bInterfaceProtocol = 0x0ff
2548
2549 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2550 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2551 */
2552 {
2553 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2554 | USB_DEVICE_ID_MATCH_DEVICE,
2555 .idVendor = 0x0411,
2556 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2557 RNDIS_MASTER_INTERFACE,
2558 .driver_info = (unsigned long) &bcm4320b_info,
2559 }, {
2560 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2561 | USB_DEVICE_ID_MATCH_DEVICE,
2562 .idVendor = 0x0baf,
2563 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2564 RNDIS_MASTER_INTERFACE,
2565 .driver_info = (unsigned long) &bcm4320b_info,
2566 }, {
2567 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2568 | USB_DEVICE_ID_MATCH_DEVICE,
2569 .idVendor = 0x050d,
2570 .idProduct = 0x011b, /* Belkin F5D7051 */
2571 RNDIS_MASTER_INTERFACE,
2572 .driver_info = (unsigned long) &bcm4320b_info,
2573 }, {
2574 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2575 | USB_DEVICE_ID_MATCH_DEVICE,
2576 .idVendor = 0x1799, /* Belkin has two vendor ids */
2577 .idProduct = 0x011b, /* Belkin F5D7051 */
2578 RNDIS_MASTER_INTERFACE,
2579 .driver_info = (unsigned long) &bcm4320b_info,
2580 }, {
2581 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2582 | USB_DEVICE_ID_MATCH_DEVICE,
2583 .idVendor = 0x13b1,
2584 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2585 RNDIS_MASTER_INTERFACE,
2586 .driver_info = (unsigned long) &bcm4320b_info,
2587 }, {
2588 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2589 | USB_DEVICE_ID_MATCH_DEVICE,
2590 .idVendor = 0x13b1,
2591 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2592 RNDIS_MASTER_INTERFACE,
2593 .driver_info = (unsigned long) &bcm4320b_info,
2594 }, {
2595 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2596 | USB_DEVICE_ID_MATCH_DEVICE,
2597 .idVendor = 0x0b05,
2598 .idProduct = 0x1717, /* Asus WL169gE */
2599 RNDIS_MASTER_INTERFACE,
2600 .driver_info = (unsigned long) &bcm4320b_info,
2601 }, {
2602 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2603 | USB_DEVICE_ID_MATCH_DEVICE,
2604 .idVendor = 0x0a5c,
2605 .idProduct = 0xd11b, /* Eminent EM4045 */
2606 RNDIS_MASTER_INTERFACE,
2607 .driver_info = (unsigned long) &bcm4320b_info,
2608 }, {
2609 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2610 | USB_DEVICE_ID_MATCH_DEVICE,
2611 .idVendor = 0x1690,
2612 .idProduct = 0x0715, /* BT Voyager 1055 */
2613 RNDIS_MASTER_INTERFACE,
2614 .driver_info = (unsigned long) &bcm4320b_info,
2615 },
2616 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2617 * parameters available, hardware probably contain older firmware version with
2618 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2619 */
2620 {
2621 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2622 | USB_DEVICE_ID_MATCH_DEVICE,
2623 .idVendor = 0x13b1,
2624 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2625 RNDIS_MASTER_INTERFACE,
2626 .driver_info = (unsigned long) &bcm4320a_info,
2627 }, {
2628 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2629 | USB_DEVICE_ID_MATCH_DEVICE,
2630 .idVendor = 0x0baf,
2631 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2632 RNDIS_MASTER_INTERFACE,
2633 .driver_info = (unsigned long) &bcm4320a_info,
2634 }, {
2635 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2636 | USB_DEVICE_ID_MATCH_DEVICE,
2637 .idVendor = 0x0411,
2638 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2639 RNDIS_MASTER_INTERFACE,
2640 .driver_info = (unsigned long) &bcm4320a_info,
2641 },
2642 /* Generic Wireless RNDIS devices that we don't have exact
2643 * idVendor/idProduct/chip yet.
2644 */
2645 {
2646 /* RNDIS is MSFT's un-official variant of CDC ACM */
2647 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2648 .driver_info = (unsigned long) &rndis_wext_info,
2649 }, {
2650 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2651 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2652 .driver_info = (unsigned long) &rndis_wext_info,
2653 },
2654 { }, // END
2655 };
2656 MODULE_DEVICE_TABLE(usb, products);
2657
2658 static struct usb_driver rndis_wlan_driver = {
2659 .name = "rndis_wlan",
2660 .id_table = products,
2661 .probe = usbnet_probe,
2662 .disconnect = usbnet_disconnect,
2663 .suspend = usbnet_suspend,
2664 .resume = usbnet_resume,
2665 };
2666
2667 static int __init rndis_wlan_init(void)
2668 {
2669 return usb_register(&rndis_wlan_driver);
2670 }
2671 module_init(rndis_wlan_init);
2672
2673 static void __exit rndis_wlan_exit(void)
2674 {
2675 usb_deregister(&rndis_wlan_driver);
2676 }
2677 module_exit(rndis_wlan_exit);
2678
2679 MODULE_AUTHOR("Bjorge Dijkstra");
2680 MODULE_AUTHOR("Jussi Kivilinna");
2681 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2682 MODULE_LICENSE("GPL");
2683
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree