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wl12xx: rename wl1251.c wl1251_ops.c
[linux-2.6/mini2440.git] / drivers / net / wireless / rndis_wlan.c
blobe8b0793b030aa5fe802f59f486afc6cda0f5ce06
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_wlan_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 char encr_key_wpa[4];
409 int wpa_version;
410 int wpa_keymgmt;
411 int wpa_authalg;
412 int wpa_ie_len;
413 u8 *wpa_ie;
414 int wpa_cipher_pair;
415 int wpa_cipher_group;
416
417 u8 command_buffer[COMMAND_BUFFER_SIZE];
418 };
419
420 /*
421 * cfg80211 ops
422 */
423 static int rndis_change_virtual_intf(struct wiphy *wiphy,
424 struct net_device *dev,
425 enum nl80211_iftype type, u32 *flags,
426 struct vif_params *params);
427
428 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
429 struct cfg80211_scan_request *request);
430
431 static struct cfg80211_ops rndis_config_ops = {
432 .change_virtual_intf = rndis_change_virtual_intf,
433 .scan = rndis_scan,
434 };
435
436 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
437
438 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
439
440 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
441 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
442 0xff, 0xff, 0xff };
443
444
445 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
446 {
447 return (struct rndis_wlan_private *)dev->driver_priv;
448 }
449
450
451 static u32 get_bcm4320_power(struct rndis_wlan_private *priv)
452 {
453 return BCM4320_DEFAULT_TXPOWER *
454 bcm4320_power_output[priv->param_power_output] / 100;
455 }
456
457
458 /* translate error code */
459 static int rndis_error_status(__le32 rndis_status)
460 {
461 int ret = -EINVAL;
462 switch (rndis_status) {
463 case RNDIS_STATUS_SUCCESS:
464 ret = 0;
465 break;
466 case RNDIS_STATUS_FAILURE:
467 case RNDIS_STATUS_INVALID_DATA:
468 ret = -EINVAL;
469 break;
470 case RNDIS_STATUS_NOT_SUPPORTED:
471 ret = -EOPNOTSUPP;
472 break;
473 case RNDIS_STATUS_ADAPTER_NOT_READY:
474 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
475 ret = -EBUSY;
476 break;
477 }
478 return ret;
479 }
480
481
482 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
483 {
484 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
485 union {
486 void *buf;
487 struct rndis_msg_hdr *header;
488 struct rndis_query *get;
489 struct rndis_query_c *get_c;
490 } u;
491 int ret, buflen;
492
493 buflen = *len + sizeof(*u.get);
494 if (buflen < CONTROL_BUFFER_SIZE)
495 buflen = CONTROL_BUFFER_SIZE;
496
497 if (buflen > COMMAND_BUFFER_SIZE) {
498 u.buf = kmalloc(buflen, GFP_KERNEL);
499 if (!u.buf)
500 return -ENOMEM;
501 } else {
502 u.buf = priv->command_buffer;
503 }
504
505 mutex_lock(&priv->command_lock);
506
507 memset(u.get, 0, sizeof *u.get);
508 u.get->msg_type = RNDIS_MSG_QUERY;
509 u.get->msg_len = cpu_to_le32(sizeof *u.get);
510 u.get->oid = oid;
511
512 ret = rndis_command(dev, u.header, buflen);
513 if (ret == 0) {
514 ret = le32_to_cpu(u.get_c->len);
515 *len = (*len > ret) ? ret : *len;
516 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
517 ret = rndis_error_status(u.get_c->status);
518 }
519
520 mutex_unlock(&priv->command_lock);
521
522 if (u.buf != priv->command_buffer)
523 kfree(u.buf);
524 return ret;
525 }
526
527
528 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
529 {
530 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
531 union {
532 void *buf;
533 struct rndis_msg_hdr *header;
534 struct rndis_set *set;
535 struct rndis_set_c *set_c;
536 } u;
537 int ret, buflen;
538
539 buflen = len + sizeof(*u.set);
540 if (buflen < CONTROL_BUFFER_SIZE)
541 buflen = CONTROL_BUFFER_SIZE;
542
543 if (buflen > COMMAND_BUFFER_SIZE) {
544 u.buf = kmalloc(buflen, GFP_KERNEL);
545 if (!u.buf)
546 return -ENOMEM;
547 } else {
548 u.buf = priv->command_buffer;
549 }
550
551 mutex_lock(&priv->command_lock);
552
553 memset(u.set, 0, sizeof *u.set);
554 u.set->msg_type = RNDIS_MSG_SET;
555 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
556 u.set->oid = oid;
557 u.set->len = cpu_to_le32(len);
558 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
559 u.set->handle = cpu_to_le32(0);
560 memcpy(u.buf + sizeof(*u.set), data, len);
561
562 ret = rndis_command(dev, u.header, buflen);
563 if (ret == 0)
564 ret = rndis_error_status(u.set_c->status);
565
566 mutex_unlock(&priv->command_lock);
567
568 if (u.buf != priv->command_buffer)
569 kfree(u.buf);
570 return ret;
571 }
572
573
574 /*
575 * Specs say that we can only set config parameters only soon after device
576 * initialization.
577 * value_type: 0 = u32, 2 = unicode string
578 */
579 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
580 int value_type, void *value)
581 {
582 struct ndis_config_param *infobuf;
583 int value_len, info_len, param_len, ret, i;
584 __le16 *unibuf;
585 __le32 *dst_value;
586
587 if (value_type == 0)
588 value_len = sizeof(__le32);
589 else if (value_type == 2)
590 value_len = strlen(value) * sizeof(__le16);
591 else
592 return -EINVAL;
593
594 param_len = strlen(param) * sizeof(__le16);
595 info_len = sizeof(*infobuf) + param_len + value_len;
596
597 #ifdef DEBUG
598 info_len += 12;
599 #endif
600 infobuf = kmalloc(info_len, GFP_KERNEL);
601 if (!infobuf)
602 return -ENOMEM;
603
604 #ifdef DEBUG
605 info_len -= 12;
606 /* extra 12 bytes are for padding (debug output) */
607 memset(infobuf, 0xCC, info_len + 12);
608 #endif
609
610 if (value_type == 2)
611 devdbg(dev, "setting config parameter: %s, value: %s",
612 param, (u8 *)value);
613 else
614 devdbg(dev, "setting config parameter: %s, value: %d",
615 param, *(u32 *)value);
616
617 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
618 infobuf->name_length = cpu_to_le32(param_len);
619 infobuf->type = cpu_to_le32(value_type);
620 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
621 infobuf->value_length = cpu_to_le32(value_len);
622
623 /* simple string to unicode string conversion */
624 unibuf = (void *)infobuf + sizeof(*infobuf);
625 for (i = 0; i < param_len / sizeof(__le16); i++)
626 unibuf[i] = cpu_to_le16(param[i]);
627
628 if (value_type == 2) {
629 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
630 for (i = 0; i < value_len / sizeof(__le16); i++)
631 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
632 } else {
633 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
634 *dst_value = cpu_to_le32(*(u32 *)value);
635 }
636
637 #ifdef DEBUG
638 devdbg(dev, "info buffer (len: %d):", info_len);
639 for (i = 0; i < info_len; i += 12) {
640 u32 *tmp = (u32 *)((u8 *)infobuf + i);
641 devdbg(dev, "%08X:%08X:%08X",
642 cpu_to_be32(tmp[0]),
643 cpu_to_be32(tmp[1]),
644 cpu_to_be32(tmp[2]));
645 }
646 #endif
647
648 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
649 infobuf, info_len);
650 if (ret != 0)
651 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
652
653 kfree(infobuf);
654 return ret;
655 }
656
657 static int rndis_set_config_parameter_str(struct usbnet *dev,
658 char *param, char *value)
659 {
660 return(rndis_set_config_parameter(dev, param, 2, value));
661 }
662
663 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
664 char *param, u32 value)
665 {
666 return(rndis_set_config_parameter(dev, param, 0, &value));
667 }*/
668
669
670 /*
671 * data conversion functions
672 */
673 static int level_to_qual(int level)
674 {
675 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
676 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
677 }
678
679
680 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
681 {
682 freq->e = 0;
683 freq->i = 0;
684 freq->flags = 0;
685
686 /* see comment in wireless.h above the "struct iw_freq"
687 * definition for an explanation of this if
688 * NOTE: 1000000 is due to the kHz
689 */
690 if (dsconfig > 1000000) {
691 freq->m = dsconfig / 10;
692 freq->e = 1;
693 } else
694 freq->m = dsconfig;
695
696 /* convert from kHz to Hz */
697 freq->e += 3;
698 }
699
700
701 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
702 {
703 if (freq->m < 1000 && freq->e == 0) {
704 if (freq->m >= 1 && freq->m <= 14)
705 *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
706 else
707 return -1;
708 } else {
709 int i;
710 *dsconfig = freq->m;
711 for (i = freq->e; i > 0; i--)
712 *dsconfig *= 10;
713 *dsconfig /= 1000;
714 }
715
716 return 0;
717 }
718
719
720 /*
721 * common functions
722 */
723 static int
724 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
725
726 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
727 {
728 int ret, len;
729
730 len = sizeof(*ssid);
731 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
732
733 if (ret != 0)
734 ssid->length = 0;
735
736 #ifdef DEBUG
737 {
738 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
739
740 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
741 tmp[le32_to_cpu(ssid->length)] = 0;
742 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
743 }
744 #endif
745 return ret;
746 }
747
748
749 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
750 {
751 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
752 int ret;
753
754 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
755 if (ret == 0) {
756 memcpy(&priv->essid, ssid, sizeof(priv->essid));
757 priv->radio_on = 1;
758 devdbg(usbdev, "set_essid: radio_on = 1");
759 }
760
761 return ret;
762 }
763
764
765 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
766 {
767 int ret, len;
768
769 len = ETH_ALEN;
770 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
771
772 if (ret != 0)
773 memset(bssid, 0, ETH_ALEN);
774
775 return ret;
776 }
777
778 static int get_association_info(struct usbnet *usbdev,
779 struct ndis_80211_assoc_info *info, int len)
780 {
781 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
782 info, &len);
783 }
784
785 static int is_associated(struct usbnet *usbdev)
786 {
787 u8 bssid[ETH_ALEN];
788 int ret;
789
790 ret = get_bssid(usbdev, bssid);
791
792 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
793 }
794
795
796 static int disassociate(struct usbnet *usbdev, int reset_ssid)
797 {
798 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
799 struct ndis_80211_ssid ssid;
800 int i, ret = 0;
801
802 if (priv->radio_on) {
803 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
804 if (ret == 0) {
805 priv->radio_on = 0;
806 devdbg(usbdev, "disassociate: radio_on = 0");
807
808 if (reset_ssid)
809 msleep(100);
810 }
811 }
812
813 /* disassociate causes radio to be turned off; if reset_ssid
814 * is given, set random ssid to enable radio */
815 if (reset_ssid) {
816 ssid.length = cpu_to_le32(sizeof(ssid.essid));
817 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
818 ssid.essid[0] = 0x1;
819 ssid.essid[1] = 0xff;
820 for (i = 2; i < sizeof(ssid.essid); i++)
821 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
822 ret = set_essid(usbdev, &ssid);
823 }
824 return ret;
825 }
826
827
828 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
829 {
830 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
831 __le32 tmp;
832 int auth_mode, ret;
833
834 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
835 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
836
837 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
838 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
839 auth_mode = NDIS_80211_AUTH_WPA2;
840 else
841 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
842 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
843 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
844 auth_mode = NDIS_80211_AUTH_WPA;
845 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
846 auth_mode = NDIS_80211_AUTH_WPA_PSK;
847 else
848 auth_mode = NDIS_80211_AUTH_WPA_NONE;
849 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
850 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
851 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
852 else
853 auth_mode = NDIS_80211_AUTH_SHARED;
854 } else
855 auth_mode = NDIS_80211_AUTH_OPEN;
856
857 tmp = cpu_to_le32(auth_mode);
858 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
859 sizeof(tmp));
860 if (ret != 0) {
861 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
862 return ret;
863 }
864
865 priv->wpa_version = wpa_version;
866 priv->wpa_authalg = authalg;
867 return 0;
868 }
869
870
871 static int set_priv_filter(struct usbnet *usbdev)
872 {
873 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
874 __le32 tmp;
875
876 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
877
878 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
879 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
880 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
881 else
882 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
883
884 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
885 sizeof(tmp));
886 }
887
888
889 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
890 {
891 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
892 __le32 tmp;
893 int encr_mode, ret;
894
895 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
896 pairwise,
897 groupwise);
898
899 if (pairwise & IW_AUTH_CIPHER_CCMP)
900 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
901 else if (pairwise & IW_AUTH_CIPHER_TKIP)
902 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
903 else if (pairwise &
904 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
905 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
906 else if (groupwise & IW_AUTH_CIPHER_CCMP)
907 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
908 else if (groupwise & IW_AUTH_CIPHER_TKIP)
909 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
910 else
911 encr_mode = NDIS_80211_ENCR_DISABLED;
912
913 tmp = cpu_to_le32(encr_mode);
914 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
915 sizeof(tmp));
916 if (ret != 0) {
917 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
918 return ret;
919 }
920
921 priv->wpa_cipher_pair = pairwise;
922 priv->wpa_cipher_group = groupwise;
923 return 0;
924 }
925
926
927 static int set_assoc_params(struct usbnet *usbdev)
928 {
929 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
930
931 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
932 set_priv_filter(usbdev);
933 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
934
935 return 0;
936 }
937
938
939 static int set_infra_mode(struct usbnet *usbdev, int mode)
940 {
941 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
942 __le32 tmp;
943 int ret, i;
944
945 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
946
947 tmp = cpu_to_le32(mode);
948 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
949 sizeof(tmp));
950 if (ret != 0) {
951 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
952 return ret;
953 }
954
955 /* NDIS drivers clear keys when infrastructure mode is
956 * changed. But Linux tools assume otherwise. So set the
957 * keys */
958 if (priv->wpa_keymgmt == 0 ||
959 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
960 for (i = 0; i < 4; i++) {
961 if (priv->encr_key_len[i] > 0 && !priv->encr_key_wpa[i])
962 add_wep_key(usbdev, priv->encr_keys[i],
963 priv->encr_key_len[i], i);
964 }
965 }
966
967 priv->infra_mode = mode;
968 return 0;
969 }
970
971
972 static void set_default_iw_params(struct usbnet *usbdev)
973 {
974 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
975
976 priv->wpa_keymgmt = 0;
977 priv->wpa_version = 0;
978
979 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
980 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
981 IW_AUTH_ALG_OPEN_SYSTEM);
982 set_priv_filter(usbdev);
983 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
984 }
985
986
987 static int deauthenticate(struct usbnet *usbdev)
988 {
989 int ret;
990
991 ret = disassociate(usbdev, 1);
992 set_default_iw_params(usbdev);
993 return ret;
994 }
995
996
997 /* index must be 0 - N, as per NDIS */
998 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
999 {
1000 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1001 struct ndis_80211_wep_key ndis_key;
1002 int ret;
1003
1004 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
1005 return -EINVAL;
1006
1007 memset(&ndis_key, 0, sizeof(ndis_key));
1008
1009 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1010 ndis_key.length = cpu_to_le32(key_len);
1011 ndis_key.index = cpu_to_le32(index);
1012 memcpy(&ndis_key.material, key, key_len);
1013
1014 if (index == priv->encr_tx_key_index) {
1015 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1016 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1017 IW_AUTH_CIPHER_NONE);
1018 if (ret)
1019 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1020 ret);
1021 }
1022
1023 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1024 sizeof(ndis_key));
1025 if (ret != 0) {
1026 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1027 index+1, ret);
1028 return ret;
1029 }
1030
1031 priv->encr_key_len[index] = key_len;
1032 priv->encr_key_wpa[index] = 0;
1033 memcpy(&priv->encr_keys[index], key, key_len);
1034
1035 return 0;
1036 }
1037
1038
1039 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1040 int index, const struct sockaddr *addr,
1041 const u8 *rx_seq, int alg, int flags)
1042 {
1043 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1044 struct ndis_80211_key ndis_key;
1045 int ret;
1046
1047 if (index < 0 || index >= 4)
1048 return -EINVAL;
1049 if (key_len > sizeof(ndis_key.material) || key_len < 0)
1050 return -EINVAL;
1051 if ((flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) && !rx_seq)
1052 return -EINVAL;
1053 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !addr)
1054 return -EINVAL;
1055
1056 devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1057 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1058 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1059 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1060
1061 memset(&ndis_key, 0, sizeof(ndis_key));
1062
1063 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1064 sizeof(ndis_key.material) + key_len);
1065 ndis_key.length = cpu_to_le32(key_len);
1066 ndis_key.index = cpu_to_le32(index) | flags;
1067
1068 if (alg == IW_ENCODE_ALG_TKIP && key_len == 32) {
1069 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1070 * different order than NDIS spec, so swap the order here. */
1071 memcpy(ndis_key.material, key, 16);
1072 memcpy(ndis_key.material + 16, key + 24, 8);
1073 memcpy(ndis_key.material + 24, key + 16, 8);
1074 } else
1075 memcpy(ndis_key.material, key, key_len);
1076
1077 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1078 memcpy(ndis_key.rsc, rx_seq, 6);
1079
1080 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1081 /* pairwise key */
1082 memcpy(ndis_key.bssid, addr->sa_data, ETH_ALEN);
1083 } else {
1084 /* group key */
1085 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1086 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1087 else
1088 get_bssid(usbdev, ndis_key.bssid);
1089 }
1090
1091 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1092 le32_to_cpu(ndis_key.size));
1093 devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1094 if (ret != 0)
1095 return ret;
1096
1097 priv->encr_key_len[index] = key_len;
1098 priv->encr_key_wpa[index] = 1;
1099
1100 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1101 priv->encr_tx_key_index = index;
1102
1103 return 0;
1104 }
1105
1106
1107 /* remove_key is for both wep and wpa */
1108 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1109 {
1110 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1111 struct ndis_80211_remove_key remove_key;
1112 __le32 keyindex;
1113 int ret;
1114
1115 if (priv->encr_key_len[index] == 0)
1116 return 0;
1117
1118 priv->encr_key_len[index] = 0;
1119 priv->encr_key_wpa[index] = 0;
1120 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1121
1122 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
1123 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
1124 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
1125 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
1126 remove_key.size = cpu_to_le32(sizeof(remove_key));
1127 remove_key.index = cpu_to_le32(index);
1128 if (bssid) {
1129 /* pairwise key */
1130 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
1131 remove_key.index |=
1132 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1133 memcpy(remove_key.bssid, bssid,
1134 sizeof(remove_key.bssid));
1135 } else
1136 memset(remove_key.bssid, 0xff,
1137 sizeof(remove_key.bssid));
1138
1139 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1140 sizeof(remove_key));
1141 if (ret != 0)
1142 return ret;
1143 } else {
1144 keyindex = cpu_to_le32(index);
1145 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1146 sizeof(keyindex));
1147 if (ret != 0) {
1148 devwarn(usbdev,
1149 "removing encryption key %d failed (%08X)",
1150 index, ret);
1151 return ret;
1152 }
1153 }
1154
1155 /* if it is transmit key, disable encryption */
1156 if (index == priv->encr_tx_key_index)
1157 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1158
1159 return 0;
1160 }
1161
1162
1163 static void set_multicast_list(struct usbnet *usbdev)
1164 {
1165 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1166 struct dev_mc_list *mclist;
1167 __le32 filter;
1168 int ret, i, size;
1169 char *buf;
1170
1171 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1172
1173 if (usbdev->net->flags & IFF_PROMISC) {
1174 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1175 RNDIS_PACKET_TYPE_ALL_LOCAL;
1176 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1177 usbdev->net->mc_count > priv->multicast_size) {
1178 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1179 } else if (usbdev->net->mc_count > 0) {
1180 size = min(priv->multicast_size, usbdev->net->mc_count);
1181 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1182 if (!buf) {
1183 devwarn(usbdev,
1184 "couldn't alloc %d bytes of memory",
1185 size * ETH_ALEN);
1186 return;
1187 }
1188
1189 mclist = usbdev->net->mc_list;
1190 for (i = 0; i < size && mclist; mclist = mclist->next) {
1191 if (mclist->dmi_addrlen != ETH_ALEN)
1192 continue;
1193
1194 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1195 i++;
1196 }
1197
1198 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1199 i * ETH_ALEN);
1200 if (ret == 0 && i > 0)
1201 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1202 else
1203 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1204
1205 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1206 i, priv->multicast_size, ret);
1207
1208 kfree(buf);
1209 }
1210
1211 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1212 sizeof(filter));
1213 if (ret < 0) {
1214 devwarn(usbdev, "couldn't set packet filter: %08x",
1215 le32_to_cpu(filter));
1216 }
1217
1218 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1219 le32_to_cpu(filter), ret);
1220 }
1221
1222
1223 /*
1224 * cfg80211 ops
1225 */
1226 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1227 struct net_device *dev,
1228 enum nl80211_iftype type, u32 *flags,
1229 struct vif_params *params)
1230 {
1231 struct usbnet *usbdev = netdev_priv(dev);
1232 int mode;
1233
1234 switch (type) {
1235 case NL80211_IFTYPE_ADHOC:
1236 mode = NDIS_80211_INFRA_ADHOC;
1237 break;
1238 case NL80211_IFTYPE_STATION:
1239 mode = NDIS_80211_INFRA_INFRA;
1240 break;
1241 default:
1242 return -EINVAL;
1243 }
1244
1245 return set_infra_mode(usbdev, mode);
1246 }
1247
1248
1249 #define SCAN_DELAY_JIFFIES (HZ)
1250 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1251 struct cfg80211_scan_request *request)
1252 {
1253 struct usbnet *usbdev = netdev_priv(dev);
1254 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1255 int ret;
1256 __le32 tmp;
1257
1258 devdbg(usbdev, "cfg80211.scan");
1259
1260 if (!request)
1261 return -EINVAL;
1262
1263 if (priv->scan_request && priv->scan_request != request)
1264 return -EBUSY;
1265
1266 priv->scan_request = request;
1267
1268 tmp = cpu_to_le32(1);
1269 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1270 sizeof(tmp));
1271 if (ret == 0) {
1272 /* Wait before retrieving scan results from device */
1273 queue_delayed_work(priv->workqueue, &priv->scan_work,
1274 SCAN_DELAY_JIFFIES);
1275 }
1276
1277 return ret;
1278 }
1279
1280
1281 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1282 struct ndis_80211_bssid_ex *bssid)
1283 {
1284 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1285 struct ieee80211_channel *channel;
1286 s32 signal;
1287 u64 timestamp;
1288 u16 capability;
1289 u16 beacon_interval;
1290 struct ndis_80211_fixed_ies *fixed;
1291 int ie_len, bssid_len;
1292 u8 *ie;
1293
1294 /* parse bssid structure */
1295 bssid_len = le32_to_cpu(bssid->length);
1296
1297 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1298 sizeof(struct ndis_80211_fixed_ies))
1299 return NULL;
1300
1301 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1302
1303 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1304 ie_len = min(bssid_len - (int)sizeof(*bssid),
1305 (int)le32_to_cpu(bssid->ie_length));
1306 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1307 if (ie_len < 0)
1308 return NULL;
1309
1310 /* extract data for cfg80211_inform_bss */
1311 channel = ieee80211_get_channel(priv->wdev.wiphy,
1312 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1313 if (!channel)
1314 return NULL;
1315
1316 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1317 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1318 capability = le16_to_cpu(fixed->capabilities);
1319 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1320
1321 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1322 timestamp, capability, beacon_interval, ie, ie_len, signal,
1323 GFP_KERNEL);
1324 }
1325
1326
1327 static int rndis_check_bssid_list(struct usbnet *usbdev)
1328 {
1329 void *buf = NULL;
1330 struct ndis_80211_bssid_list_ex *bssid_list;
1331 struct ndis_80211_bssid_ex *bssid;
1332 int ret = -EINVAL, len, count, bssid_len;
1333
1334 devdbg(usbdev, "check_bssid_list");
1335
1336 len = CONTROL_BUFFER_SIZE;
1337 buf = kmalloc(len, GFP_KERNEL);
1338 if (!buf) {
1339 ret = -ENOMEM;
1340 goto out;
1341 }
1342
1343 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1344 if (ret != 0)
1345 goto out;
1346
1347 bssid_list = buf;
1348 bssid = bssid_list->bssid;
1349 bssid_len = le32_to_cpu(bssid->length);
1350 count = le32_to_cpu(bssid_list->num_items);
1351 devdbg(usbdev, "check_bssid_list: %d BSSIDs found", count);
1352
1353 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1354 rndis_bss_info_update(usbdev, bssid);
1355
1356 bssid = (void *)bssid + bssid_len;
1357 bssid_len = le32_to_cpu(bssid->length);
1358 count--;
1359 }
1360
1361 out:
1362 kfree(buf);
1363 return ret;
1364 }
1365
1366
1367 static void rndis_get_scan_results(struct work_struct *work)
1368 {
1369 struct rndis_wlan_private *priv =
1370 container_of(work, struct rndis_wlan_private, scan_work.work);
1371 struct usbnet *usbdev = priv->usbdev;
1372 int ret;
1373
1374 devdbg(usbdev, "get_scan_results");
1375
1376 ret = rndis_check_bssid_list(usbdev);
1377
1378 cfg80211_scan_done(priv->scan_request, ret < 0);
1379
1380 priv->scan_request = NULL;
1381 }
1382
1383
1384 /*
1385 * wireless extension handlers
1386 */
1387
1388 static int rndis_iw_commit(struct net_device *dev,
1389 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1390 {
1391 /* dummy op */
1392 return 0;
1393 }
1394
1395
1396 static int rndis_iw_set_essid(struct net_device *dev,
1397 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1398 {
1399 struct ndis_80211_ssid ssid;
1400 int length = wrqu->essid.length;
1401 struct usbnet *usbdev = netdev_priv(dev);
1402
1403 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1404 wrqu->essid.flags, wrqu->essid.length, essid);
1405
1406 if (length > NDIS_802_11_LENGTH_SSID)
1407 length = NDIS_802_11_LENGTH_SSID;
1408
1409 ssid.length = cpu_to_le32(length);
1410 if (length > 0)
1411 memcpy(ssid.essid, essid, length);
1412 else
1413 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1414
1415 set_assoc_params(usbdev);
1416
1417 if (!wrqu->essid.flags || length == 0)
1418 return disassociate(usbdev, 1);
1419 else
1420 return set_essid(usbdev, &ssid);
1421 }
1422
1423
1424 static int rndis_iw_get_essid(struct net_device *dev,
1425 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1426 {
1427 struct ndis_80211_ssid ssid;
1428 struct usbnet *usbdev = netdev_priv(dev);
1429 int ret;
1430
1431 ret = get_essid(usbdev, &ssid);
1432
1433 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1434 wrqu->essid.flags = 1;
1435 wrqu->essid.length = le32_to_cpu(ssid.length);
1436 memcpy(essid, ssid.essid, wrqu->essid.length);
1437 essid[wrqu->essid.length] = 0;
1438 } else {
1439 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1440 wrqu->essid.flags = 0;
1441 wrqu->essid.length = 0;
1442 }
1443 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1444 return ret;
1445 }
1446
1447
1448 static int rndis_iw_get_bssid(struct net_device *dev,
1449 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1450 {
1451 struct usbnet *usbdev = netdev_priv(dev);
1452 unsigned char bssid[ETH_ALEN];
1453 int ret;
1454
1455 ret = get_bssid(usbdev, bssid);
1456
1457 if (ret == 0)
1458 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1459 else
1460 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1461
1462 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1463 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1464
1465 return ret;
1466 }
1467
1468
1469 static int rndis_iw_set_bssid(struct net_device *dev,
1470 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1471 {
1472 struct usbnet *usbdev = netdev_priv(dev);
1473 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1474 int ret;
1475
1476 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1477
1478 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1479
1480 /* user apps may set ap's mac address, which is not required;
1481 * they may fail to work if this function fails, so return
1482 * success */
1483 if (ret)
1484 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1485
1486 return 0;
1487 }
1488
1489
1490 static int rndis_iw_set_auth(struct net_device *dev,
1491 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1492 {
1493 struct iw_param *p = &wrqu->param;
1494 struct usbnet *usbdev = netdev_priv(dev);
1495 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1496 int ret = -ENOTSUPP;
1497
1498 switch (p->flags & IW_AUTH_INDEX) {
1499 case IW_AUTH_WPA_VERSION:
1500 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1501 priv->wpa_version = p->value;
1502 ret = 0;
1503 break;
1504
1505 case IW_AUTH_CIPHER_PAIRWISE:
1506 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1507 priv->wpa_cipher_pair = p->value;
1508 ret = 0;
1509 break;
1510
1511 case IW_AUTH_CIPHER_GROUP:
1512 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1513 priv->wpa_cipher_group = p->value;
1514 ret = 0;
1515 break;
1516
1517 case IW_AUTH_KEY_MGMT:
1518 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1519 priv->wpa_keymgmt = p->value;
1520 ret = 0;
1521 break;
1522
1523 case IW_AUTH_TKIP_COUNTERMEASURES:
1524 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1525 p->value);
1526 ret = 0;
1527 break;
1528
1529 case IW_AUTH_DROP_UNENCRYPTED:
1530 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1531 ret = 0;
1532 break;
1533
1534 case IW_AUTH_80211_AUTH_ALG:
1535 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1536 priv->wpa_authalg = p->value;
1537 ret = 0;
1538 break;
1539
1540 case IW_AUTH_WPA_ENABLED:
1541 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1542 if (wrqu->param.value)
1543 deauthenticate(usbdev);
1544 ret = 0;
1545 break;
1546
1547 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1548 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1549 p->value);
1550 ret = 0;
1551 break;
1552
1553 case IW_AUTH_ROAMING_CONTROL:
1554 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1555 ret = 0;
1556 break;
1557
1558 case IW_AUTH_PRIVACY_INVOKED:
1559 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1560 wrqu->param.flags & IW_AUTH_INDEX);
1561 return -EOPNOTSUPP;
1562
1563 default:
1564 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1565 p->flags & IW_AUTH_INDEX, p->value);
1566 }
1567 return ret;
1568 }
1569
1570
1571 static int rndis_iw_get_auth(struct net_device *dev,
1572 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1573 {
1574 struct iw_param *p = &wrqu->param;
1575 struct usbnet *usbdev = netdev_priv(dev);
1576 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1577
1578 switch (p->flags & IW_AUTH_INDEX) {
1579 case IW_AUTH_WPA_VERSION:
1580 p->value = priv->wpa_version;
1581 break;
1582 case IW_AUTH_CIPHER_PAIRWISE:
1583 p->value = priv->wpa_cipher_pair;
1584 break;
1585 case IW_AUTH_CIPHER_GROUP:
1586 p->value = priv->wpa_cipher_group;
1587 break;
1588 case IW_AUTH_KEY_MGMT:
1589 p->value = priv->wpa_keymgmt;
1590 break;
1591 case IW_AUTH_80211_AUTH_ALG:
1592 p->value = priv->wpa_authalg;
1593 break;
1594 default:
1595 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1596 wrqu->param.flags & IW_AUTH_INDEX);
1597 return -EOPNOTSUPP;
1598 }
1599 return 0;
1600 }
1601
1602
1603 static int rndis_iw_set_encode(struct net_device *dev,
1604 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1605 {
1606 struct usbnet *usbdev = netdev_priv(dev);
1607 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1608 int ret, index, key_len;
1609 u8 *key;
1610
1611 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1612
1613 /* iwconfig gives index as 1 - N */
1614 if (index > 0)
1615 index--;
1616 else
1617 index = priv->encr_tx_key_index;
1618
1619 if (index < 0 || index >= 4) {
1620 devwarn(usbdev, "encryption index out of range (%u)", index);
1621 return -EINVAL;
1622 }
1623
1624 /* remove key if disabled */
1625 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1626 if (remove_key(usbdev, index, NULL))
1627 return -EINVAL;
1628 else
1629 return 0;
1630 }
1631
1632 /* global encryption state (for all keys) */
1633 if (wrqu->data.flags & IW_ENCODE_OPEN)
1634 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1635 IW_AUTH_ALG_OPEN_SYSTEM);
1636 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1637 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1638 IW_AUTH_ALG_SHARED_KEY);
1639 if (ret != 0)
1640 return ret;
1641
1642 if (wrqu->data.length > 0) {
1643 key_len = wrqu->data.length;
1644 key = extra;
1645 } else {
1646 /* must be set as tx key */
1647 if (priv->encr_key_len[index] == 0)
1648 return -EINVAL;
1649 key_len = priv->encr_key_len[index];
1650 key = priv->encr_keys[index];
1651 priv->encr_tx_key_index = index;
1652 }
1653
1654 if (add_wep_key(usbdev, key, key_len, index) != 0)
1655 return -EINVAL;
1656
1657 if (index == priv->encr_tx_key_index)
1658 /* ndis drivers want essid to be set after setting encr */
1659 set_essid(usbdev, &priv->essid);
1660
1661 return 0;
1662 }
1663
1664
1665 static int rndis_iw_set_encode_ext(struct net_device *dev,
1666 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1667 {
1668 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1669 struct usbnet *usbdev = netdev_priv(dev);
1670 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1671 int keyidx, flags;
1672
1673 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1674
1675 /* iwconfig gives index as 1 - N */
1676 if (keyidx)
1677 keyidx--;
1678 else
1679 keyidx = priv->encr_tx_key_index;
1680
1681 if (keyidx < 0 || keyidx >= 4)
1682 return -EINVAL;
1683
1684 if (ext->alg == WPA_ALG_WEP) {
1685 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1686 priv->encr_tx_key_index = keyidx;
1687 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1688 }
1689
1690 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1691 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1692 return remove_key(usbdev, keyidx, NULL);
1693
1694 flags = 0;
1695 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID)
1696 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
1697 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY))
1698 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY;
1699 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1700 flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY;
1701
1702 return add_wpa_key(usbdev, ext->key, ext->key_len, keyidx, &ext->addr,
1703 ext->rx_seq, ext->alg, flags);
1704 }
1705
1706
1707 static int rndis_iw_set_genie(struct net_device *dev,
1708 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1709 {
1710 struct usbnet *usbdev = netdev_priv(dev);
1711 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1712 int ret = 0;
1713
1714 #ifdef DEBUG
1715 int j;
1716 u8 *gie = extra;
1717 for (j = 0; j < wrqu->data.length; j += 8)
1718 devdbg(usbdev,
1719 "SIOCSIWGENIE %04x - "
1720 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1721 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1722 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1723 #endif
1724 /* clear existing IEs */
1725 if (priv->wpa_ie_len) {
1726 kfree(priv->wpa_ie);
1727 priv->wpa_ie_len = 0;
1728 }
1729
1730 /* set new IEs */
1731 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1732 if (priv->wpa_ie) {
1733 priv->wpa_ie_len = wrqu->data.length;
1734 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1735 } else
1736 ret = -ENOMEM;
1737 return ret;
1738 }
1739
1740
1741 static int rndis_iw_get_genie(struct net_device *dev,
1742 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1743 {
1744 struct usbnet *usbdev = netdev_priv(dev);
1745 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1746
1747 devdbg(usbdev, "SIOCGIWGENIE");
1748
1749 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1750 wrqu->data.length = 0;
1751 return 0;
1752 }
1753
1754 if (wrqu->data.length < priv->wpa_ie_len)
1755 return -E2BIG;
1756
1757 wrqu->data.length = priv->wpa_ie_len;
1758 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1759
1760 return 0;
1761 }
1762
1763
1764 static int rndis_iw_set_rts(struct net_device *dev,
1765 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1766 {
1767 struct usbnet *usbdev = netdev_priv(dev);
1768 __le32 tmp;
1769 devdbg(usbdev, "SIOCSIWRTS");
1770
1771 tmp = cpu_to_le32(wrqu->rts.value);
1772 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1773 sizeof(tmp));
1774 }
1775
1776
1777 static int rndis_iw_get_rts(struct net_device *dev,
1778 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1779 {
1780 struct usbnet *usbdev = netdev_priv(dev);
1781 __le32 tmp;
1782 int len, ret;
1783
1784 len = sizeof(tmp);
1785 ret = rndis_query_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp, &len);
1786 if (ret == 0) {
1787 wrqu->rts.value = le32_to_cpu(tmp);
1788 wrqu->rts.flags = 1;
1789 wrqu->rts.disabled = 0;
1790 }
1791
1792 devdbg(usbdev, "SIOCGIWRTS: %d", wrqu->rts.value);
1793
1794 return ret;
1795 }
1796
1797
1798 static int rndis_iw_set_frag(struct net_device *dev,
1799 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1800 {
1801 struct usbnet *usbdev = netdev_priv(dev);
1802 __le32 tmp;
1803
1804 devdbg(usbdev, "SIOCSIWFRAG");
1805
1806 tmp = cpu_to_le32(wrqu->frag.value);
1807 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1808 sizeof(tmp));
1809 }
1810
1811
1812 static int rndis_iw_get_frag(struct net_device *dev,
1813 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1814 {
1815 struct usbnet *usbdev = netdev_priv(dev);
1816 __le32 tmp;
1817 int len, ret;
1818
1819 len = sizeof(tmp);
1820 ret = rndis_query_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1821 &len);
1822 if (ret == 0) {
1823 wrqu->frag.value = le32_to_cpu(tmp);
1824 wrqu->frag.flags = 1;
1825 wrqu->frag.disabled = 0;
1826 }
1827 devdbg(usbdev, "SIOCGIWFRAG: %d", wrqu->frag.value);
1828 return ret;
1829 }
1830
1831
1832 static int rndis_iw_set_freq(struct net_device *dev,
1833 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1834 {
1835 struct usbnet *usbdev = netdev_priv(dev);
1836 struct ndis_80211_conf config;
1837 unsigned int dsconfig;
1838 int len, ret;
1839
1840 /* this OID is valid only when not associated */
1841 if (is_associated(usbdev))
1842 return 0;
1843
1844 dsconfig = 0;
1845 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
1846 return -EINVAL;
1847
1848 len = sizeof(config);
1849 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1850 if (ret != 0) {
1851 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
1852 return 0;
1853 }
1854
1855 config.ds_config = cpu_to_le32(dsconfig);
1856
1857 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
1858 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1859 sizeof(config));
1860 }
1861
1862
1863 static int rndis_iw_get_freq(struct net_device *dev,
1864 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1865 {
1866 struct usbnet *usbdev = netdev_priv(dev);
1867 struct ndis_80211_conf config;
1868 int len, ret;
1869
1870 len = sizeof(config);
1871 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1872 if (ret == 0)
1873 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
1874
1875 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
1876 return ret;
1877 }
1878
1879
1880 static int rndis_iw_get_txpower(struct net_device *dev,
1881 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1882 {
1883 struct usbnet *usbdev = netdev_priv(dev);
1884 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1885 __le32 tx_power;
1886
1887 if (priv->radio_on) {
1888 /* fake since changing tx_power (by userlevel) not supported */
1889 tx_power = cpu_to_le32(get_bcm4320_power(priv));
1890
1891 wrqu->txpower.flags = IW_TXPOW_MWATT;
1892 wrqu->txpower.value = le32_to_cpu(tx_power);
1893 wrqu->txpower.disabled = 0;
1894 } else {
1895 wrqu->txpower.flags = IW_TXPOW_MWATT;
1896 wrqu->txpower.value = 0;
1897 wrqu->txpower.disabled = 1;
1898 }
1899
1900 devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
1901
1902 return 0;
1903 }
1904
1905
1906 static int rndis_iw_set_txpower(struct net_device *dev,
1907 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1908 {
1909 struct usbnet *usbdev = netdev_priv(dev);
1910 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1911 __le32 tx_power = 0;
1912
1913 if (!wrqu->txpower.disabled) {
1914 if (wrqu->txpower.flags == IW_TXPOW_MWATT)
1915 tx_power = cpu_to_le32(wrqu->txpower.value);
1916 else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
1917 if (wrqu->txpower.value > 20)
1918 tx_power = cpu_to_le32(128);
1919 else if (wrqu->txpower.value < -43)
1920 tx_power = cpu_to_le32(127);
1921 else {
1922 signed char tmp;
1923 tmp = wrqu->txpower.value;
1924 tmp = -12 - tmp;
1925 tmp <<= 2;
1926 tx_power = cpu_to_le32((unsigned char)tmp);
1927 }
1928 }
1929 }
1930
1931 devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
1932
1933 if (le32_to_cpu(tx_power) != 0) {
1934 /* txpower unsupported, just turn radio on */
1935 if (!priv->radio_on)
1936 return disassociate(usbdev, 1);
1937 return 0; /* all ready on */
1938 }
1939
1940 /* tx_power == 0, turn off radio */
1941 return disassociate(usbdev, 0);
1942 }
1943
1944
1945 static int rndis_iw_get_rate(struct net_device *dev,
1946 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1947 {
1948 struct usbnet *usbdev = netdev_priv(dev);
1949 __le32 tmp;
1950 int ret, len;
1951
1952 len = sizeof(tmp);
1953 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
1954 if (ret == 0) {
1955 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
1956 wrqu->bitrate.disabled = 0;
1957 wrqu->bitrate.flags = 1;
1958 }
1959 return ret;
1960 }
1961
1962
1963 static int rndis_iw_set_mlme(struct net_device *dev,
1964 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1965 {
1966 struct usbnet *usbdev = netdev_priv(dev);
1967 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1968 struct iw_mlme *mlme = (struct iw_mlme *)extra;
1969 unsigned char bssid[ETH_ALEN];
1970
1971 get_bssid(usbdev, bssid);
1972
1973 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
1974 return -EINVAL;
1975
1976 switch (mlme->cmd) {
1977 case IW_MLME_DEAUTH:
1978 return deauthenticate(usbdev);
1979 case IW_MLME_DISASSOC:
1980 return disassociate(usbdev, priv->radio_on);
1981 default:
1982 return -EOPNOTSUPP;
1983 }
1984
1985 return 0;
1986 }
1987
1988
1989 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
1990 {
1991 struct usbnet *usbdev = netdev_priv(dev);
1992 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1993 unsigned long flags;
1994
1995 spin_lock_irqsave(&priv->stats_lock, flags);
1996 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
1997 spin_unlock_irqrestore(&priv->stats_lock, flags);
1998
1999 return &priv->iwstats;
2000 }
2001
2002
2003 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2004 static const iw_handler rndis_iw_handler[] =
2005 {
2006 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
2007 IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname,
2008 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
2009 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
2010 IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode,
2011 IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode,
2012 IW_IOCTL(SIOCGIWRANGE) = (iw_handler) cfg80211_wext_giwrange,
2013 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
2014 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
2015 IW_IOCTL(SIOCSIWSCAN) = (iw_handler) cfg80211_wext_siwscan,
2016 IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan,
2017 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
2018 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
2019 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
2020 IW_IOCTL(SIOCSIWRTS) = rndis_iw_set_rts,
2021 IW_IOCTL(SIOCGIWRTS) = rndis_iw_get_rts,
2022 IW_IOCTL(SIOCSIWFRAG) = rndis_iw_set_frag,
2023 IW_IOCTL(SIOCGIWFRAG) = rndis_iw_get_frag,
2024 IW_IOCTL(SIOCSIWTXPOW) = rndis_iw_set_txpower,
2025 IW_IOCTL(SIOCGIWTXPOW) = rndis_iw_get_txpower,
2026 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2027 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2028 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2029 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2030 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2031 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2032 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2033 };
2034
2035 static const iw_handler rndis_wlan_private_handler[] = {
2036 };
2037
2038 static const struct iw_priv_args rndis_wlan_private_args[] = {
2039 };
2040
2041
2042 static const struct iw_handler_def rndis_iw_handlers = {
2043 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2044 .num_private = ARRAY_SIZE(rndis_wlan_private_handler),
2045 .num_private_args = ARRAY_SIZE(rndis_wlan_private_args),
2046 .standard = (iw_handler *)rndis_iw_handler,
2047 .private = (iw_handler *)rndis_wlan_private_handler,
2048 .private_args = (struct iw_priv_args *)rndis_wlan_private_args,
2049 .get_wireless_stats = rndis_get_wireless_stats,
2050 };
2051
2052
2053 static void rndis_wlan_worker(struct work_struct *work)
2054 {
2055 struct rndis_wlan_private *priv =
2056 container_of(work, struct rndis_wlan_private, work);
2057 struct usbnet *usbdev = priv->usbdev;
2058 union iwreq_data evt;
2059 unsigned char bssid[ETH_ALEN];
2060 struct ndis_80211_assoc_info *info;
2061 int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32;
2062 int ret, offset;
2063
2064 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) {
2065 netif_carrier_on(usbdev->net);
2066
2067 info = kzalloc(assoc_size, GFP_KERNEL);
2068 if (!info)
2069 goto get_bssid;
2070
2071 /* Get association info IEs from device and send them back to
2072 * userspace. */
2073 ret = get_association_info(usbdev, info, assoc_size);
2074 if (!ret) {
2075 evt.data.length = le32_to_cpu(info->req_ie_length);
2076 if (evt.data.length > 0) {
2077 offset = le32_to_cpu(info->offset_req_ies);
2078 wireless_send_event(usbdev->net,
2079 IWEVASSOCREQIE, &evt,
2080 (char *)info + offset);
2081 }
2082
2083 evt.data.length = le32_to_cpu(info->resp_ie_length);
2084 if (evt.data.length > 0) {
2085 offset = le32_to_cpu(info->offset_resp_ies);
2086 wireless_send_event(usbdev->net,
2087 IWEVASSOCRESPIE, &evt,
2088 (char *)info + offset);
2089 }
2090 }
2091
2092 kfree(info);
2093
2094 get_bssid:
2095 ret = get_bssid(usbdev, bssid);
2096 if (!ret) {
2097 evt.data.flags = 0;
2098 evt.data.length = 0;
2099 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2100 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2101 }
2102 }
2103
2104 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) {
2105 netif_carrier_off(usbdev->net);
2106
2107 evt.data.flags = 0;
2108 evt.data.length = 0;
2109 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2110 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2111 }
2112
2113 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2114 set_multicast_list(usbdev);
2115 }
2116
2117 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2118 {
2119 struct usbnet *usbdev = netdev_priv(dev);
2120 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2121
2122 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2123 return;
2124
2125 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2126 queue_work(priv->workqueue, &priv->work);
2127 }
2128
2129 static void rndis_wlan_link_change(struct usbnet *usbdev, int state)
2130 {
2131 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2132
2133 /* queue work to avoid recursive calls into rndis_command */
2134 set_bit(state ? WORK_LINK_UP : WORK_LINK_DOWN, &priv->work_pending);
2135 queue_work(priv->workqueue, &priv->work);
2136 }
2137
2138
2139 static int rndis_wlan_get_caps(struct usbnet *usbdev)
2140 {
2141 struct {
2142 __le32 num_items;
2143 __le32 items[8];
2144 } networks_supported;
2145 int len, retval, i, n;
2146 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2147
2148 /* determine supported modes */
2149 len = sizeof(networks_supported);
2150 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2151 &networks_supported, &len);
2152 if (retval >= 0) {
2153 n = le32_to_cpu(networks_supported.num_items);
2154 if (n > 8)
2155 n = 8;
2156 for (i = 0; i < n; i++) {
2157 switch (le32_to_cpu(networks_supported.items[i])) {
2158 case NDIS_80211_TYPE_FREQ_HOP:
2159 case NDIS_80211_TYPE_DIRECT_SEQ:
2160 priv->caps |= CAP_MODE_80211B;
2161 break;
2162 case NDIS_80211_TYPE_OFDM_A:
2163 priv->caps |= CAP_MODE_80211A;
2164 break;
2165 case NDIS_80211_TYPE_OFDM_G:
2166 priv->caps |= CAP_MODE_80211G;
2167 break;
2168 }
2169 }
2170 }
2171
2172 return retval;
2173 }
2174
2175
2176 #define STATS_UPDATE_JIFFIES (HZ)
2177 static void rndis_update_wireless_stats(struct work_struct *work)
2178 {
2179 struct rndis_wlan_private *priv =
2180 container_of(work, struct rndis_wlan_private, stats_work.work);
2181 struct usbnet *usbdev = priv->usbdev;
2182 struct iw_statistics iwstats;
2183 __le32 rssi, tmp;
2184 int len, ret, j;
2185 unsigned long flags;
2186 int update_jiffies = STATS_UPDATE_JIFFIES;
2187 void *buf;
2188
2189 spin_lock_irqsave(&priv->stats_lock, flags);
2190 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2191 spin_unlock_irqrestore(&priv->stats_lock, flags);
2192
2193 /* only update stats when connected */
2194 if (!is_associated(usbdev)) {
2195 iwstats.qual.qual = 0;
2196 iwstats.qual.level = 0;
2197 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2198 | IW_QUAL_LEVEL_UPDATED
2199 | IW_QUAL_NOISE_INVALID
2200 | IW_QUAL_QUAL_INVALID
2201 | IW_QUAL_LEVEL_INVALID;
2202 goto end;
2203 }
2204
2205 len = sizeof(rssi);
2206 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2207
2208 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2209 le32_to_cpu(rssi));
2210 if (ret == 0) {
2211 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2212 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2213 iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
2214 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2215 | IW_QUAL_LEVEL_UPDATED
2216 | IW_QUAL_NOISE_INVALID;
2217 }
2218
2219 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2220
2221 len = sizeof(tmp);
2222 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2223 if (ret == 0)
2224 iwstats.discard.misc += le32_to_cpu(tmp);
2225
2226 len = sizeof(tmp);
2227 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2228 if (ret == 0)
2229 iwstats.discard.misc += le32_to_cpu(tmp);
2230
2231 len = sizeof(tmp);
2232 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2233 if (ret == 0)
2234 iwstats.discard.misc += le32_to_cpu(tmp);
2235
2236 /* Workaround transfer stalls on poor quality links.
2237 * TODO: find right way to fix these stalls (as stalls do not happen
2238 * with ndiswrapper/windows driver). */
2239 if (iwstats.qual.qual <= 25) {
2240 /* Decrease stats worker interval to catch stalls.
2241 * faster. Faster than 400-500ms causes packet loss,
2242 * Slower doesn't catch stalls fast enough.
2243 */
2244 j = msecs_to_jiffies(priv->param_workaround_interval);
2245 if (j > STATS_UPDATE_JIFFIES)
2246 j = STATS_UPDATE_JIFFIES;
2247 else if (j <= 0)
2248 j = 1;
2249 update_jiffies = j;
2250
2251 /* Send scan OID. Use of both OIDs is required to get device
2252 * working.
2253 */
2254 tmp = cpu_to_le32(1);
2255 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2256 sizeof(tmp));
2257
2258 len = CONTROL_BUFFER_SIZE;
2259 buf = kmalloc(len, GFP_KERNEL);
2260 if (!buf)
2261 goto end;
2262
2263 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2264 kfree(buf);
2265 }
2266 end:
2267 spin_lock_irqsave(&priv->stats_lock, flags);
2268 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2269 spin_unlock_irqrestore(&priv->stats_lock, flags);
2270
2271 if (update_jiffies >= HZ)
2272 update_jiffies = round_jiffies_relative(update_jiffies);
2273 else {
2274 j = round_jiffies_relative(update_jiffies);
2275 if (abs(j - update_jiffies) <= 10)
2276 update_jiffies = j;
2277 }
2278
2279 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2280 }
2281
2282
2283 static int bcm4320a_early_init(struct usbnet *usbdev)
2284 {
2285 /* bcm4320a doesn't handle configuration parameters well. Try
2286 * set any and you get partially zeroed mac and broken device.
2287 */
2288
2289 return 0;
2290 }
2291
2292
2293 static int bcm4320b_early_init(struct usbnet *usbdev)
2294 {
2295 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2296 char buf[8];
2297
2298 /* Early initialization settings, setting these won't have effect
2299 * if called after generic_rndis_bind().
2300 */
2301
2302 priv->param_country[0] = modparam_country[0];
2303 priv->param_country[1] = modparam_country[1];
2304 priv->param_country[2] = 0;
2305 priv->param_frameburst = modparam_frameburst;
2306 priv->param_afterburner = modparam_afterburner;
2307 priv->param_power_save = modparam_power_save;
2308 priv->param_power_output = modparam_power_output;
2309 priv->param_roamtrigger = modparam_roamtrigger;
2310 priv->param_roamdelta = modparam_roamdelta;
2311
2312 priv->param_country[0] = toupper(priv->param_country[0]);
2313 priv->param_country[1] = toupper(priv->param_country[1]);
2314 /* doesn't support EU as country code, use FI instead */
2315 if (!strcmp(priv->param_country, "EU"))
2316 strcpy(priv->param_country, "FI");
2317
2318 if (priv->param_power_save < 0)
2319 priv->param_power_save = 0;
2320 else if (priv->param_power_save > 2)
2321 priv->param_power_save = 2;
2322
2323 if (priv->param_power_output < 0)
2324 priv->param_power_output = 0;
2325 else if (priv->param_power_output > 3)
2326 priv->param_power_output = 3;
2327
2328 if (priv->param_roamtrigger < -80)
2329 priv->param_roamtrigger = -80;
2330 else if (priv->param_roamtrigger > -60)
2331 priv->param_roamtrigger = -60;
2332
2333 if (priv->param_roamdelta < 0)
2334 priv->param_roamdelta = 0;
2335 else if (priv->param_roamdelta > 2)
2336 priv->param_roamdelta = 2;
2337
2338 if (modparam_workaround_interval < 0)
2339 priv->param_workaround_interval = 500;
2340 else
2341 priv->param_workaround_interval = modparam_workaround_interval;
2342
2343 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2344 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2345 priv->param_frameburst ? "1" : "0");
2346 rndis_set_config_parameter_str(usbdev, "Afterburner",
2347 priv->param_afterburner ? "1" : "0");
2348 sprintf(buf, "%d", priv->param_power_save);
2349 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2350 sprintf(buf, "%d", priv->param_power_output);
2351 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2352 sprintf(buf, "%d", priv->param_roamtrigger);
2353 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2354 sprintf(buf, "%d", priv->param_roamdelta);
2355 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2356
2357 return 0;
2358 }
2359
2360 /* same as rndis_netdev_ops but with local multicast handler */
2361 static const struct net_device_ops rndis_wlan_netdev_ops = {
2362 .ndo_open = usbnet_open,
2363 .ndo_stop = usbnet_stop,
2364 .ndo_start_xmit = usbnet_start_xmit,
2365 .ndo_tx_timeout = usbnet_tx_timeout,
2366 .ndo_set_mac_address = eth_mac_addr,
2367 .ndo_validate_addr = eth_validate_addr,
2368 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
2369 };
2370
2371
2372 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
2373 {
2374 struct wiphy *wiphy;
2375 struct rndis_wlan_private *priv;
2376 int retval, len;
2377 __le32 tmp;
2378
2379 /* allocate wiphy and rndis private data
2380 * NOTE: We only support a single virtual interface, so wiphy
2381 * and wireless_dev are somewhat synonymous for this device.
2382 */
2383 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
2384 if (!wiphy)
2385 return -ENOMEM;
2386
2387 priv = wiphy_priv(wiphy);
2388 usbdev->net->ieee80211_ptr = &priv->wdev;
2389 priv->wdev.wiphy = wiphy;
2390 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2391
2392 /* These have to be initialized before calling generic_rndis_bind().
2393 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
2394 */
2395 usbdev->driver_priv = priv;
2396 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2397 priv->usbdev = usbdev;
2398
2399 mutex_init(&priv->command_lock);
2400 spin_lock_init(&priv->stats_lock);
2401
2402 /* because rndis_command() sleeps we need to use workqueue */
2403 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2404 INIT_WORK(&priv->work, rndis_wlan_worker);
2405 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2406 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2407
2408 /* try bind rndis_host */
2409 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2410 if (retval < 0)
2411 goto fail;
2412
2413 /* generic_rndis_bind set packet filter to multicast_all+
2414 * promisc mode which doesn't work well for our devices (device
2415 * picks up rssi to closest station instead of to access point).
2416 *
2417 * rndis_host wants to avoid all OID as much as possible
2418 * so do promisc/multicast handling in rndis_wlan.
2419 */
2420 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
2421
2422 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2423 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2424 sizeof(tmp));
2425
2426 len = sizeof(tmp);
2427 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2428 &len);
2429 priv->multicast_size = le32_to_cpu(tmp);
2430 if (retval < 0 || priv->multicast_size < 0)
2431 priv->multicast_size = 0;
2432 if (priv->multicast_size > 0)
2433 usbdev->net->flags |= IFF_MULTICAST;
2434 else
2435 usbdev->net->flags &= ~IFF_MULTICAST;
2436
2437 priv->iwstats.qual.qual = 0;
2438 priv->iwstats.qual.level = 0;
2439 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2440 | IW_QUAL_LEVEL_UPDATED
2441 | IW_QUAL_NOISE_INVALID
2442 | IW_QUAL_QUAL_INVALID
2443 | IW_QUAL_LEVEL_INVALID;
2444
2445 /* fill-out wiphy structure and register w/ cfg80211 */
2446 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2447 wiphy->privid = rndis_wiphy_privid;
2448 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2449 | BIT(NL80211_IFTYPE_ADHOC);
2450 wiphy->max_scan_ssids = 1;
2451
2452 /* TODO: fill-out band information based on priv->caps */
2453 rndis_wlan_get_caps(usbdev);
2454
2455 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2456 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2457 priv->band.channels = priv->channels;
2458 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2459 priv->band.bitrates = priv->rates;
2460 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2461 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2462 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2463
2464 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2465
2466 if (wiphy_register(wiphy)) {
2467 retval = -ENODEV;
2468 goto fail;
2469 }
2470
2471 set_default_iw_params(usbdev);
2472
2473 /* turn radio on */
2474 priv->radio_on = 1;
2475 disassociate(usbdev, 1);
2476 netif_carrier_off(usbdev->net);
2477
2478 queue_delayed_work(priv->workqueue, &priv->stats_work,
2479 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2480
2481 return 0;
2482
2483 fail:
2484 cancel_delayed_work_sync(&priv->stats_work);
2485 cancel_delayed_work_sync(&priv->scan_work);
2486 cancel_work_sync(&priv->work);
2487 flush_workqueue(priv->workqueue);
2488 destroy_workqueue(priv->workqueue);
2489
2490 wiphy_free(wiphy);
2491 return retval;
2492 }
2493
2494
2495 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2496 {
2497 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2498
2499 /* turn radio off */
2500 disassociate(usbdev, 0);
2501
2502 cancel_delayed_work_sync(&priv->stats_work);
2503 cancel_delayed_work_sync(&priv->scan_work);
2504 cancel_work_sync(&priv->work);
2505 flush_workqueue(priv->workqueue);
2506 destroy_workqueue(priv->workqueue);
2507
2508 if (priv && priv->wpa_ie_len)
2509 kfree(priv->wpa_ie);
2510
2511 rndis_unbind(usbdev, intf);
2512
2513 wiphy_unregister(priv->wdev.wiphy);
2514 wiphy_free(priv->wdev.wiphy);
2515 }
2516
2517
2518 static int rndis_wlan_reset(struct usbnet *usbdev)
2519 {
2520 return deauthenticate(usbdev);
2521 }
2522
2523
2524 static const struct driver_info bcm4320b_info = {
2525 .description = "Wireless RNDIS device, BCM4320b based",
2526 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2527 .bind = rndis_wlan_bind,
2528 .unbind = rndis_wlan_unbind,
2529 .status = rndis_status,
2530 .rx_fixup = rndis_rx_fixup,
2531 .tx_fixup = rndis_tx_fixup,
2532 .reset = rndis_wlan_reset,
2533 .early_init = bcm4320b_early_init,
2534 .link_change = rndis_wlan_link_change,
2535 };
2536
2537 static const struct driver_info bcm4320a_info = {
2538 .description = "Wireless RNDIS device, BCM4320a based",
2539 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2540 .bind = rndis_wlan_bind,
2541 .unbind = rndis_wlan_unbind,
2542 .status = rndis_status,
2543 .rx_fixup = rndis_rx_fixup,
2544 .tx_fixup = rndis_tx_fixup,
2545 .reset = rndis_wlan_reset,
2546 .early_init = bcm4320a_early_init,
2547 .link_change = rndis_wlan_link_change,
2548 };
2549
2550 static const struct driver_info rndis_wlan_info = {
2551 .description = "Wireless RNDIS device",
2552 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2553 .bind = rndis_wlan_bind,
2554 .unbind = rndis_wlan_unbind,
2555 .status = rndis_status,
2556 .rx_fixup = rndis_rx_fixup,
2557 .tx_fixup = rndis_tx_fixup,
2558 .reset = rndis_wlan_reset,
2559 .early_init = bcm4320a_early_init,
2560 .link_change = rndis_wlan_link_change,
2561 };
2562
2563 /*-------------------------------------------------------------------------*/
2564
2565 static const struct usb_device_id products [] = {
2566 #define RNDIS_MASTER_INTERFACE \
2567 .bInterfaceClass = USB_CLASS_COMM, \
2568 .bInterfaceSubClass = 2 /* ACM */, \
2569 .bInterfaceProtocol = 0x0ff
2570
2571 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2572 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2573 */
2574 {
2575 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2576 | USB_DEVICE_ID_MATCH_DEVICE,
2577 .idVendor = 0x0411,
2578 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2579 RNDIS_MASTER_INTERFACE,
2580 .driver_info = (unsigned long) &bcm4320b_info,
2581 }, {
2582 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2583 | USB_DEVICE_ID_MATCH_DEVICE,
2584 .idVendor = 0x0baf,
2585 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2586 RNDIS_MASTER_INTERFACE,
2587 .driver_info = (unsigned long) &bcm4320b_info,
2588 }, {
2589 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2590 | USB_DEVICE_ID_MATCH_DEVICE,
2591 .idVendor = 0x050d,
2592 .idProduct = 0x011b, /* Belkin F5D7051 */
2593 RNDIS_MASTER_INTERFACE,
2594 .driver_info = (unsigned long) &bcm4320b_info,
2595 }, {
2596 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2597 | USB_DEVICE_ID_MATCH_DEVICE,
2598 .idVendor = 0x1799, /* Belkin has two vendor ids */
2599 .idProduct = 0x011b, /* Belkin F5D7051 */
2600 RNDIS_MASTER_INTERFACE,
2601 .driver_info = (unsigned long) &bcm4320b_info,
2602 }, {
2603 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2604 | USB_DEVICE_ID_MATCH_DEVICE,
2605 .idVendor = 0x13b1,
2606 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2607 RNDIS_MASTER_INTERFACE,
2608 .driver_info = (unsigned long) &bcm4320b_info,
2609 }, {
2610 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2611 | USB_DEVICE_ID_MATCH_DEVICE,
2612 .idVendor = 0x13b1,
2613 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2614 RNDIS_MASTER_INTERFACE,
2615 .driver_info = (unsigned long) &bcm4320b_info,
2616 }, {
2617 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2618 | USB_DEVICE_ID_MATCH_DEVICE,
2619 .idVendor = 0x0b05,
2620 .idProduct = 0x1717, /* Asus WL169gE */
2621 RNDIS_MASTER_INTERFACE,
2622 .driver_info = (unsigned long) &bcm4320b_info,
2623 }, {
2624 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2625 | USB_DEVICE_ID_MATCH_DEVICE,
2626 .idVendor = 0x0a5c,
2627 .idProduct = 0xd11b, /* Eminent EM4045 */
2628 RNDIS_MASTER_INTERFACE,
2629 .driver_info = (unsigned long) &bcm4320b_info,
2630 }, {
2631 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2632 | USB_DEVICE_ID_MATCH_DEVICE,
2633 .idVendor = 0x1690,
2634 .idProduct = 0x0715, /* BT Voyager 1055 */
2635 RNDIS_MASTER_INTERFACE,
2636 .driver_info = (unsigned long) &bcm4320b_info,
2637 },
2638 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2639 * parameters available, hardware probably contain older firmware version with
2640 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2641 */
2642 {
2643 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2644 | USB_DEVICE_ID_MATCH_DEVICE,
2645 .idVendor = 0x13b1,
2646 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2647 RNDIS_MASTER_INTERFACE,
2648 .driver_info = (unsigned long) &bcm4320a_info,
2649 }, {
2650 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2651 | USB_DEVICE_ID_MATCH_DEVICE,
2652 .idVendor = 0x0baf,
2653 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2654 RNDIS_MASTER_INTERFACE,
2655 .driver_info = (unsigned long) &bcm4320a_info,
2656 }, {
2657 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2658 | USB_DEVICE_ID_MATCH_DEVICE,
2659 .idVendor = 0x0411,
2660 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2661 RNDIS_MASTER_INTERFACE,
2662 .driver_info = (unsigned long) &bcm4320a_info,
2663 },
2664 /* Generic Wireless RNDIS devices that we don't have exact
2665 * idVendor/idProduct/chip yet.
2666 */
2667 {
2668 /* RNDIS is MSFT's un-official variant of CDC ACM */
2669 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2670 .driver_info = (unsigned long) &rndis_wlan_info,
2671 }, {
2672 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2673 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2674 .driver_info = (unsigned long) &rndis_wlan_info,
2675 },
2676 { }, // END
2677 };
2678 MODULE_DEVICE_TABLE(usb, products);
2679
2680 static struct usb_driver rndis_wlan_driver = {
2681 .name = "rndis_wlan",
2682 .id_table = products,
2683 .probe = usbnet_probe,
2684 .disconnect = usbnet_disconnect,
2685 .suspend = usbnet_suspend,
2686 .resume = usbnet_resume,
2687 };
2688
2689 static int __init rndis_wlan_init(void)
2690 {
2691 return usb_register(&rndis_wlan_driver);
2692 }
2693 module_init(rndis_wlan_init);
2694
2695 static void __exit rndis_wlan_exit(void)
2696 {
2697 usb_deregister(&rndis_wlan_driver);
2698 }
2699 module_exit(rndis_wlan_exit);
2700
2701 MODULE_AUTHOR("Bjorge Dijkstra");
2702 MODULE_AUTHOR("Jussi Kivilinna");
2703 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2704 MODULE_LICENSE("GPL");
2705
Support for the Chinese Samsung S3C2440 based development boards