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rndis_wlan: use is_zero_ether_addr() and is_broadcast_ether_addr()
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / rndis_wlan.c
blobc28fde59c32bf05c73e8a7e40963445f7e9a8b5d
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_CURRENT_ADDRESS cpu_to_le32(0x01010102)
104 #define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103)
105 #define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104)
106
107 #define OID_802_11_BSSID cpu_to_le32(0x0d010101)
108 #define OID_802_11_SSID cpu_to_le32(0x0d010102)
109 #define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108)
110 #define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113)
111 #define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114)
112 #define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115)
113 #define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118)
114 #define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119)
115 #define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a)
116 #define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b)
117 #define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d)
118 #define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e)
119 #define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f)
120 #define OID_802_11_PMKID cpu_to_le32(0x0d010123)
121 #define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
122 #define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
123 #define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
124 #define OID_802_11_RSSI cpu_to_le32(0x0d010206)
125 #define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
126 #define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
127 #define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
128 #define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
129 #define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
130 #define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
131
132
133 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
134 #define WL_NOISE -96 /* typical noise level in dBm */
135 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
136
137
138 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
139 * based on wireless rndis) has default txpower of 13dBm.
140 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
141 * 100% : 20 mW ~ 13dBm
142 * 75% : 15 mW ~ 12dBm
143 * 50% : 10 mW ~ 10dBm
144 * 25% : 5 mW ~ 7dBm
145 */
146 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
147 #define BCM4320_DEFAULT_TXPOWER_DBM_75 12
148 #define BCM4320_DEFAULT_TXPOWER_DBM_50 10
149 #define BCM4320_DEFAULT_TXPOWER_DBM_25 7
150
151
152 /* codes for "status" field of completion messages */
153 #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
154 #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
155
156
157 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
158 * slightly modified for datatype endianess, etc
159 */
160 #define NDIS_802_11_LENGTH_SSID 32
161 #define NDIS_802_11_LENGTH_RATES 8
162 #define NDIS_802_11_LENGTH_RATES_EX 16
163
164 enum ndis_80211_net_type {
165 NDIS_80211_TYPE_FREQ_HOP,
166 NDIS_80211_TYPE_DIRECT_SEQ,
167 NDIS_80211_TYPE_OFDM_A,
168 NDIS_80211_TYPE_OFDM_G
169 };
170
171 enum ndis_80211_net_infra {
172 NDIS_80211_INFRA_ADHOC,
173 NDIS_80211_INFRA_INFRA,
174 NDIS_80211_INFRA_AUTO_UNKNOWN
175 };
176
177 enum ndis_80211_auth_mode {
178 NDIS_80211_AUTH_OPEN,
179 NDIS_80211_AUTH_SHARED,
180 NDIS_80211_AUTH_AUTO_SWITCH,
181 NDIS_80211_AUTH_WPA,
182 NDIS_80211_AUTH_WPA_PSK,
183 NDIS_80211_AUTH_WPA_NONE,
184 NDIS_80211_AUTH_WPA2,
185 NDIS_80211_AUTH_WPA2_PSK
186 };
187
188 enum ndis_80211_encr_status {
189 NDIS_80211_ENCR_WEP_ENABLED,
190 NDIS_80211_ENCR_DISABLED,
191 NDIS_80211_ENCR_WEP_KEY_ABSENT,
192 NDIS_80211_ENCR_NOT_SUPPORTED,
193 NDIS_80211_ENCR_TKIP_ENABLED,
194 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
195 NDIS_80211_ENCR_CCMP_ENABLED,
196 NDIS_80211_ENCR_CCMP_KEY_ABSENT
197 };
198
199 enum ndis_80211_priv_filter {
200 NDIS_80211_PRIV_ACCEPT_ALL,
201 NDIS_80211_PRIV_8021X_WEP
202 };
203
204 enum ndis_80211_status_type {
205 NDIS_80211_STATUSTYPE_AUTHENTICATION,
206 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
207 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
208 NDIS_80211_STATUSTYPE_RADIOSTATE,
209 };
210
211 enum ndis_80211_media_stream_mode {
212 NDIS_80211_MEDIA_STREAM_OFF,
213 NDIS_80211_MEDIA_STREAM_ON
214 };
215
216 enum ndis_80211_radio_status {
217 NDIS_80211_RADIO_STATUS_ON,
218 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
219 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
220 };
221
222 enum ndis_80211_addkey_bits {
223 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
224 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
225 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
226 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
227 };
228
229 enum ndis_80211_addwep_bits {
230 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
231 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
232 };
233
234 struct ndis_80211_auth_request {
235 __le32 length;
236 u8 bssid[6];
237 u8 padding[2];
238 __le32 flags;
239 } __attribute__((packed));
240
241 struct ndis_80211_pmkid_candidate {
242 u8 bssid[6];
243 u8 padding[2];
244 __le32 flags;
245 } __attribute__((packed));
246
247 struct ndis_80211_pmkid_cand_list {
248 __le32 version;
249 __le32 num_candidates;
250 struct ndis_80211_pmkid_candidate candidate_list[0];
251 } __attribute__((packed));
252
253 struct ndis_80211_status_indication {
254 __le32 status_type;
255 union {
256 enum ndis_80211_media_stream_mode media_stream_mode;
257 enum ndis_80211_radio_status radio_status;
258 struct ndis_80211_auth_request auth_request[0];
259 struct ndis_80211_pmkid_cand_list cand_list;
260 } u;
261 } __attribute__((packed));
262
263 struct ndis_80211_ssid {
264 __le32 length;
265 u8 essid[NDIS_802_11_LENGTH_SSID];
266 } __attribute__((packed));
267
268 struct ndis_80211_conf_freq_hop {
269 __le32 length;
270 __le32 hop_pattern;
271 __le32 hop_set;
272 __le32 dwell_time;
273 } __attribute__((packed));
274
275 struct ndis_80211_conf {
276 __le32 length;
277 __le32 beacon_period;
278 __le32 atim_window;
279 __le32 ds_config;
280 struct ndis_80211_conf_freq_hop fh_config;
281 } __attribute__((packed));
282
283 struct ndis_80211_bssid_ex {
284 __le32 length;
285 u8 mac[6];
286 u8 padding[2];
287 struct ndis_80211_ssid ssid;
288 __le32 privacy;
289 __le32 rssi;
290 __le32 net_type;
291 struct ndis_80211_conf config;
292 __le32 net_infra;
293 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
294 __le32 ie_length;
295 u8 ies[0];
296 } __attribute__((packed));
297
298 struct ndis_80211_bssid_list_ex {
299 __le32 num_items;
300 struct ndis_80211_bssid_ex bssid[0];
301 } __attribute__((packed));
302
303 struct ndis_80211_fixed_ies {
304 u8 timestamp[8];
305 __le16 beacon_interval;
306 __le16 capabilities;
307 } __attribute__((packed));
308
309 struct ndis_80211_wep_key {
310 __le32 size;
311 __le32 index;
312 __le32 length;
313 u8 material[32];
314 } __attribute__((packed));
315
316 struct ndis_80211_key {
317 __le32 size;
318 __le32 index;
319 __le32 length;
320 u8 bssid[6];
321 u8 padding[6];
322 u8 rsc[8];
323 u8 material[32];
324 } __attribute__((packed));
325
326 struct ndis_80211_remove_key {
327 __le32 size;
328 __le32 index;
329 u8 bssid[6];
330 u8 padding[2];
331 } __attribute__((packed));
332
333 struct ndis_config_param {
334 __le32 name_offs;
335 __le32 name_length;
336 __le32 type;
337 __le32 value_offs;
338 __le32 value_length;
339 } __attribute__((packed));
340
341 struct ndis_80211_assoc_info {
342 __le32 length;
343 __le16 req_ies;
344 struct req_ie {
345 __le16 capa;
346 __le16 listen_interval;
347 u8 cur_ap_address[6];
348 } req_ie;
349 __le32 req_ie_length;
350 __le32 offset_req_ies;
351 __le16 resp_ies;
352 struct resp_ie {
353 __le16 capa;
354 __le16 status_code;
355 __le16 assoc_id;
356 } resp_ie;
357 __le32 resp_ie_length;
358 __le32 offset_resp_ies;
359 } __attribute__((packed));
360
361 /* these have to match what is in wpa_supplicant */
362 enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
363 enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
364 CIPHER_WEP104 };
365 enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE,
366 KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE };
367
368 /*
369 * private data
370 */
371 #define NET_TYPE_11FB 0
372
373 #define CAP_MODE_80211A 1
374 #define CAP_MODE_80211B 2
375 #define CAP_MODE_80211G 4
376 #define CAP_MODE_MASK 7
377
378 #define WORK_LINK_UP (1<<0)
379 #define WORK_LINK_DOWN (1<<1)
380 #define WORK_SET_MULTICAST_LIST (1<<2)
381
382 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
383
384 static const struct ieee80211_channel rndis_channels[] = {
385 { .center_freq = 2412 },
386 { .center_freq = 2417 },
387 { .center_freq = 2422 },
388 { .center_freq = 2427 },
389 { .center_freq = 2432 },
390 { .center_freq = 2437 },
391 { .center_freq = 2442 },
392 { .center_freq = 2447 },
393 { .center_freq = 2452 },
394 { .center_freq = 2457 },
395 { .center_freq = 2462 },
396 { .center_freq = 2467 },
397 { .center_freq = 2472 },
398 { .center_freq = 2484 },
399 };
400
401 static const struct ieee80211_rate rndis_rates[] = {
402 { .bitrate = 10 },
403 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
404 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
405 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
406 { .bitrate = 60 },
407 { .bitrate = 90 },
408 { .bitrate = 120 },
409 { .bitrate = 180 },
410 { .bitrate = 240 },
411 { .bitrate = 360 },
412 { .bitrate = 480 },
413 { .bitrate = 540 }
414 };
415
416 static const u32 rndis_cipher_suites[] = {
417 WLAN_CIPHER_SUITE_WEP40,
418 WLAN_CIPHER_SUITE_WEP104,
419 WLAN_CIPHER_SUITE_TKIP,
420 WLAN_CIPHER_SUITE_CCMP,
421 };
422
423 struct rndis_wlan_encr_key {
424 int len;
425 int cipher;
426 u8 material[32];
427 u8 bssid[ETH_ALEN];
428 bool pairwise;
429 bool tx_key;
430 };
431
432 /* RNDIS device private data */
433 struct rndis_wlan_private {
434 struct usbnet *usbdev;
435
436 struct wireless_dev wdev;
437
438 struct cfg80211_scan_request *scan_request;
439
440 struct workqueue_struct *workqueue;
441 struct delayed_work stats_work;
442 struct delayed_work scan_work;
443 struct work_struct work;
444 struct mutex command_lock;
445 spinlock_t stats_lock;
446 unsigned long work_pending;
447
448 struct ieee80211_supported_band band;
449 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
450 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
451 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
452
453 struct iw_statistics iwstats;
454 struct iw_statistics privstats;
455
456 int caps;
457 int multicast_size;
458
459 /* module parameters */
460 char param_country[4];
461 int param_frameburst;
462 int param_afterburner;
463 int param_power_save;
464 int param_power_output;
465 int param_roamtrigger;
466 int param_roamdelta;
467 u32 param_workaround_interval;
468
469 /* hardware state */
470 int radio_on;
471 int infra_mode;
472 struct ndis_80211_ssid essid;
473 __le32 current_command_oid;
474
475 /* encryption stuff */
476 int encr_tx_key_index;
477 struct rndis_wlan_encr_key encr_keys[4];
478 int wpa_version;
479 int wpa_keymgmt;
480 int wpa_authalg;
481 int wpa_ie_len;
482 u8 *wpa_ie;
483 int wpa_cipher_pair;
484 int wpa_cipher_group;
485
486 u8 command_buffer[COMMAND_BUFFER_SIZE];
487 };
488
489 /*
490 * cfg80211 ops
491 */
492 static int rndis_change_virtual_intf(struct wiphy *wiphy,
493 struct net_device *dev,
494 enum nl80211_iftype type, u32 *flags,
495 struct vif_params *params);
496
497 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
498 struct cfg80211_scan_request *request);
499
500 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
501
502 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
503 int dbm);
504 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
505
506 static struct cfg80211_ops rndis_config_ops = {
507 .change_virtual_intf = rndis_change_virtual_intf,
508 .scan = rndis_scan,
509 .set_wiphy_params = rndis_set_wiphy_params,
510 .set_tx_power = rndis_set_tx_power,
511 .get_tx_power = rndis_get_tx_power,
512 };
513
514 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
515
516
517 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
518 {
519 return (struct rndis_wlan_private *)dev->driver_priv;
520 }
521
522
523 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
524 {
525 switch (priv->param_power_output) {
526 default:
527 case 3:
528 return BCM4320_DEFAULT_TXPOWER_DBM_100;
529 case 2:
530 return BCM4320_DEFAULT_TXPOWER_DBM_75;
531 case 1:
532 return BCM4320_DEFAULT_TXPOWER_DBM_50;
533 case 0:
534 return BCM4320_DEFAULT_TXPOWER_DBM_25;
535 }
536 }
537
538
539 static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
540 {
541 int cipher = priv->encr_keys[idx].cipher;
542
543 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
544 cipher == WLAN_CIPHER_SUITE_TKIP);
545 }
546
547
548 #ifdef DEBUG
549 static const char *oid_to_string(__le32 oid)
550 {
551 switch (oid) {
552 #define OID_STR(oid) case oid: return(#oid)
553 /* from rndis_host.h */
554 OID_STR(OID_802_3_PERMANENT_ADDRESS);
555 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
556 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
557 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
558
559 /* from rndis_wlan.c */
560 OID_STR(OID_GEN_LINK_SPEED);
561 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
562
563 OID_STR(OID_GEN_XMIT_OK);
564 OID_STR(OID_GEN_RCV_OK);
565 OID_STR(OID_GEN_XMIT_ERROR);
566 OID_STR(OID_GEN_RCV_ERROR);
567 OID_STR(OID_GEN_RCV_NO_BUFFER);
568
569 OID_STR(OID_802_3_CURRENT_ADDRESS);
570 OID_STR(OID_802_3_MULTICAST_LIST);
571 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
572
573 OID_STR(OID_802_11_BSSID);
574 OID_STR(OID_802_11_SSID);
575 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
576 OID_STR(OID_802_11_ADD_WEP);
577 OID_STR(OID_802_11_REMOVE_WEP);
578 OID_STR(OID_802_11_DISASSOCIATE);
579 OID_STR(OID_802_11_AUTHENTICATION_MODE);
580 OID_STR(OID_802_11_PRIVACY_FILTER);
581 OID_STR(OID_802_11_BSSID_LIST_SCAN);
582 OID_STR(OID_802_11_ENCRYPTION_STATUS);
583 OID_STR(OID_802_11_ADD_KEY);
584 OID_STR(OID_802_11_REMOVE_KEY);
585 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
586 OID_STR(OID_802_11_PMKID);
587 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
588 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
589 OID_STR(OID_802_11_TX_POWER_LEVEL);
590 OID_STR(OID_802_11_RSSI);
591 OID_STR(OID_802_11_RSSI_TRIGGER);
592 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
593 OID_STR(OID_802_11_RTS_THRESHOLD);
594 OID_STR(OID_802_11_SUPPORTED_RATES);
595 OID_STR(OID_802_11_CONFIGURATION);
596 OID_STR(OID_802_11_BSSID_LIST);
597 #undef OID_STR
598 }
599
600 return "?";
601 }
602 #else
603 static const char *oid_to_string(__le32 oid)
604 {
605 return "?";
606 }
607 #endif
608
609
610 /* translate error code */
611 static int rndis_error_status(__le32 rndis_status)
612 {
613 int ret = -EINVAL;
614 switch (rndis_status) {
615 case RNDIS_STATUS_SUCCESS:
616 ret = 0;
617 break;
618 case RNDIS_STATUS_FAILURE:
619 case RNDIS_STATUS_INVALID_DATA:
620 ret = -EINVAL;
621 break;
622 case RNDIS_STATUS_NOT_SUPPORTED:
623 ret = -EOPNOTSUPP;
624 break;
625 case RNDIS_STATUS_ADAPTER_NOT_READY:
626 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
627 ret = -EBUSY;
628 break;
629 }
630 return ret;
631 }
632
633
634 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
635 {
636 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
637 union {
638 void *buf;
639 struct rndis_msg_hdr *header;
640 struct rndis_query *get;
641 struct rndis_query_c *get_c;
642 } u;
643 int ret, buflen;
644
645 buflen = *len + sizeof(*u.get);
646 if (buflen < CONTROL_BUFFER_SIZE)
647 buflen = CONTROL_BUFFER_SIZE;
648
649 if (buflen > COMMAND_BUFFER_SIZE) {
650 u.buf = kmalloc(buflen, GFP_KERNEL);
651 if (!u.buf)
652 return -ENOMEM;
653 } else {
654 u.buf = priv->command_buffer;
655 }
656
657 mutex_lock(&priv->command_lock);
658
659 memset(u.get, 0, sizeof *u.get);
660 u.get->msg_type = RNDIS_MSG_QUERY;
661 u.get->msg_len = cpu_to_le32(sizeof *u.get);
662 u.get->oid = oid;
663
664 priv->current_command_oid = oid;
665 ret = rndis_command(dev, u.header, buflen);
666 priv->current_command_oid = 0;
667 if (ret < 0)
668 devdbg(dev, "rndis_query_oid(%s): rndis_command() failed, %d "
669 "(%08x)", oid_to_string(oid), ret,
670 le32_to_cpu(u.get_c->status));
671
672 if (ret == 0) {
673 ret = le32_to_cpu(u.get_c->len);
674 if (ret > *len)
675 *len = ret;
676 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
677 ret = rndis_error_status(u.get_c->status);
678
679 if (ret < 0)
680 devdbg(dev, "rndis_query_oid(%s): device returned "
681 "error, 0x%08x (%d)", oid_to_string(oid),
682 le32_to_cpu(u.get_c->status), ret);
683 }
684
685 mutex_unlock(&priv->command_lock);
686
687 if (u.buf != priv->command_buffer)
688 kfree(u.buf);
689 return ret;
690 }
691
692
693 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
694 {
695 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
696 union {
697 void *buf;
698 struct rndis_msg_hdr *header;
699 struct rndis_set *set;
700 struct rndis_set_c *set_c;
701 } u;
702 int ret, buflen;
703
704 buflen = len + sizeof(*u.set);
705 if (buflen < CONTROL_BUFFER_SIZE)
706 buflen = CONTROL_BUFFER_SIZE;
707
708 if (buflen > COMMAND_BUFFER_SIZE) {
709 u.buf = kmalloc(buflen, GFP_KERNEL);
710 if (!u.buf)
711 return -ENOMEM;
712 } else {
713 u.buf = priv->command_buffer;
714 }
715
716 mutex_lock(&priv->command_lock);
717
718 memset(u.set, 0, sizeof *u.set);
719 u.set->msg_type = RNDIS_MSG_SET;
720 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
721 u.set->oid = oid;
722 u.set->len = cpu_to_le32(len);
723 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
724 u.set->handle = cpu_to_le32(0);
725 memcpy(u.buf + sizeof(*u.set), data, len);
726
727 priv->current_command_oid = oid;
728 ret = rndis_command(dev, u.header, buflen);
729 priv->current_command_oid = 0;
730 if (ret < 0)
731 devdbg(dev, "rndis_set_oid(%s): rndis_command() failed, %d "
732 "(%08x)", oid_to_string(oid), ret,
733 le32_to_cpu(u.set_c->status));
734
735 if (ret == 0) {
736 ret = rndis_error_status(u.set_c->status);
737
738 if (ret < 0)
739 devdbg(dev, "rndis_set_oid(%s): device returned error, "
740 "0x%08x (%d)", oid_to_string(oid),
741 le32_to_cpu(u.set_c->status), ret);
742 }
743
744 mutex_unlock(&priv->command_lock);
745
746 if (u.buf != priv->command_buffer)
747 kfree(u.buf);
748 return ret;
749 }
750
751
752 static int rndis_reset(struct usbnet *usbdev)
753 {
754 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
755 struct rndis_reset *reset;
756 int ret;
757
758 mutex_lock(&priv->command_lock);
759
760 reset = (void *)priv->command_buffer;
761 memset(reset, 0, sizeof(*reset));
762 reset->msg_type = RNDIS_MSG_RESET;
763 reset->msg_len = cpu_to_le32(sizeof(*reset));
764 priv->current_command_oid = 0;
765 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
766
767 mutex_unlock(&priv->command_lock);
768
769 if (ret < 0)
770 return ret;
771 return 0;
772 }
773
774
775 /*
776 * Specs say that we can only set config parameters only soon after device
777 * initialization.
778 * value_type: 0 = u32, 2 = unicode string
779 */
780 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
781 int value_type, void *value)
782 {
783 struct ndis_config_param *infobuf;
784 int value_len, info_len, param_len, ret, i;
785 __le16 *unibuf;
786 __le32 *dst_value;
787
788 if (value_type == 0)
789 value_len = sizeof(__le32);
790 else if (value_type == 2)
791 value_len = strlen(value) * sizeof(__le16);
792 else
793 return -EINVAL;
794
795 param_len = strlen(param) * sizeof(__le16);
796 info_len = sizeof(*infobuf) + param_len + value_len;
797
798 #ifdef DEBUG
799 info_len += 12;
800 #endif
801 infobuf = kmalloc(info_len, GFP_KERNEL);
802 if (!infobuf)
803 return -ENOMEM;
804
805 #ifdef DEBUG
806 info_len -= 12;
807 /* extra 12 bytes are for padding (debug output) */
808 memset(infobuf, 0xCC, info_len + 12);
809 #endif
810
811 if (value_type == 2)
812 devdbg(dev, "setting config parameter: %s, value: %s",
813 param, (u8 *)value);
814 else
815 devdbg(dev, "setting config parameter: %s, value: %d",
816 param, *(u32 *)value);
817
818 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
819 infobuf->name_length = cpu_to_le32(param_len);
820 infobuf->type = cpu_to_le32(value_type);
821 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
822 infobuf->value_length = cpu_to_le32(value_len);
823
824 /* simple string to unicode string conversion */
825 unibuf = (void *)infobuf + sizeof(*infobuf);
826 for (i = 0; i < param_len / sizeof(__le16); i++)
827 unibuf[i] = cpu_to_le16(param[i]);
828
829 if (value_type == 2) {
830 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
831 for (i = 0; i < value_len / sizeof(__le16); i++)
832 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
833 } else {
834 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
835 *dst_value = cpu_to_le32(*(u32 *)value);
836 }
837
838 #ifdef DEBUG
839 devdbg(dev, "info buffer (len: %d):", info_len);
840 for (i = 0; i < info_len; i += 12) {
841 u32 *tmp = (u32 *)((u8 *)infobuf + i);
842 devdbg(dev, "%08X:%08X:%08X",
843 cpu_to_be32(tmp[0]),
844 cpu_to_be32(tmp[1]),
845 cpu_to_be32(tmp[2]));
846 }
847 #endif
848
849 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
850 infobuf, info_len);
851 if (ret != 0)
852 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
853
854 kfree(infobuf);
855 return ret;
856 }
857
858 static int rndis_set_config_parameter_str(struct usbnet *dev,
859 char *param, char *value)
860 {
861 return(rndis_set_config_parameter(dev, param, 2, value));
862 }
863
864 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
865 char *param, u32 value)
866 {
867 return(rndis_set_config_parameter(dev, param, 0, &value));
868 }*/
869
870
871 /*
872 * data conversion functions
873 */
874 static int level_to_qual(int level)
875 {
876 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
877 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
878 }
879
880
881 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
882 {
883 freq->e = 0;
884 freq->i = 0;
885 freq->flags = 0;
886
887 /* see comment in wireless.h above the "struct iw_freq"
888 * definition for an explanation of this if
889 * NOTE: 1000000 is due to the kHz
890 */
891 if (dsconfig > 1000000) {
892 freq->m = dsconfig / 10;
893 freq->e = 1;
894 } else
895 freq->m = dsconfig;
896
897 /* convert from kHz to Hz */
898 freq->e += 3;
899 }
900
901
902 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
903 {
904 if (freq->m < 1000 && freq->e == 0) {
905 if (freq->m >= 1 && freq->m <= 14)
906 *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
907 else
908 return -1;
909 } else {
910 int i;
911 *dsconfig = freq->m;
912 for (i = freq->e; i > 0; i--)
913 *dsconfig *= 10;
914 *dsconfig /= 1000;
915 }
916
917 return 0;
918 }
919
920
921 /*
922 * common functions
923 */
924 static void restore_keys(struct usbnet *usbdev);
925 static int rndis_check_bssid_list(struct usbnet *usbdev);
926
927 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
928 {
929 int ret, len;
930
931 len = sizeof(*ssid);
932 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
933
934 if (ret != 0)
935 ssid->length = 0;
936
937 #ifdef DEBUG
938 {
939 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
940
941 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
942 tmp[le32_to_cpu(ssid->length)] = 0;
943 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
944 }
945 #endif
946 return ret;
947 }
948
949
950 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
951 {
952 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
953 int ret;
954
955 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
956 if (ret == 0) {
957 memcpy(&priv->essid, ssid, sizeof(priv->essid));
958 priv->radio_on = 1;
959 devdbg(usbdev, "set_essid: radio_on = 1");
960 }
961
962 return ret;
963 }
964
965
966 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
967 {
968 int ret, len;
969
970 len = ETH_ALEN;
971 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
972
973 if (ret != 0)
974 memset(bssid, 0, ETH_ALEN);
975
976 return ret;
977 }
978
979 static int get_association_info(struct usbnet *usbdev,
980 struct ndis_80211_assoc_info *info, int len)
981 {
982 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
983 info, &len);
984 }
985
986 static int is_associated(struct usbnet *usbdev)
987 {
988 u8 bssid[ETH_ALEN];
989 int ret;
990
991 ret = get_bssid(usbdev, bssid);
992
993 return (ret == 0 && !is_zero_ether_addr(bssid));
994 }
995
996
997 static int disassociate(struct usbnet *usbdev, int reset_ssid)
998 {
999 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1000 struct ndis_80211_ssid ssid;
1001 int i, ret = 0;
1002
1003 if (priv->radio_on) {
1004 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1005 if (ret == 0) {
1006 priv->radio_on = 0;
1007 devdbg(usbdev, "disassociate: radio_on = 0");
1008
1009 if (reset_ssid)
1010 msleep(100);
1011 }
1012 }
1013
1014 /* disassociate causes radio to be turned off; if reset_ssid
1015 * is given, set random ssid to enable radio */
1016 if (reset_ssid) {
1017 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1018 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1019 ssid.essid[0] = 0x1;
1020 ssid.essid[1] = 0xff;
1021 for (i = 2; i < sizeof(ssid.essid); i++)
1022 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1023 ret = set_essid(usbdev, &ssid);
1024 }
1025 return ret;
1026 }
1027
1028
1029 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
1030 {
1031 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1032 __le32 tmp;
1033 int auth_mode, ret;
1034
1035 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
1036 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
1037
1038 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
1039 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
1040 auth_mode = NDIS_80211_AUTH_WPA2;
1041 else
1042 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1043 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
1044 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
1045 auth_mode = NDIS_80211_AUTH_WPA;
1046 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
1047 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1048 else
1049 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1050 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
1051 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
1052 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1053 else
1054 auth_mode = NDIS_80211_AUTH_SHARED;
1055 } else
1056 auth_mode = NDIS_80211_AUTH_OPEN;
1057
1058 tmp = cpu_to_le32(auth_mode);
1059 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1060 sizeof(tmp));
1061 if (ret != 0) {
1062 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
1063 return ret;
1064 }
1065
1066 priv->wpa_version = wpa_version;
1067 priv->wpa_authalg = authalg;
1068 return 0;
1069 }
1070
1071
1072 static int set_priv_filter(struct usbnet *usbdev)
1073 {
1074 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1075 __le32 tmp;
1076
1077 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
1078
1079 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
1080 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
1081 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1082 else
1083 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1084
1085 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1086 sizeof(tmp));
1087 }
1088
1089
1090 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1091 {
1092 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1093 __le32 tmp;
1094 int encr_mode, ret;
1095
1096 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
1097 pairwise,
1098 groupwise);
1099
1100 if (pairwise & IW_AUTH_CIPHER_CCMP)
1101 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1102 else if (pairwise & IW_AUTH_CIPHER_TKIP)
1103 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1104 else if (pairwise &
1105 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
1106 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1107 else if (groupwise & IW_AUTH_CIPHER_CCMP)
1108 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1109 else if (groupwise & IW_AUTH_CIPHER_TKIP)
1110 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1111 else
1112 encr_mode = NDIS_80211_ENCR_DISABLED;
1113
1114 tmp = cpu_to_le32(encr_mode);
1115 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1116 sizeof(tmp));
1117 if (ret != 0) {
1118 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
1119 return ret;
1120 }
1121
1122 priv->wpa_cipher_pair = pairwise;
1123 priv->wpa_cipher_group = groupwise;
1124 return 0;
1125 }
1126
1127
1128 static int set_assoc_params(struct usbnet *usbdev)
1129 {
1130 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1131
1132 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
1133 set_priv_filter(usbdev);
1134 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
1135
1136 return 0;
1137 }
1138
1139
1140 static int set_infra_mode(struct usbnet *usbdev, int mode)
1141 {
1142 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1143 __le32 tmp;
1144 int ret;
1145
1146 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
1147
1148 tmp = cpu_to_le32(mode);
1149 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1150 sizeof(tmp));
1151 if (ret != 0) {
1152 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
1153 return ret;
1154 }
1155
1156 /* NDIS drivers clear keys when infrastructure mode is
1157 * changed. But Linux tools assume otherwise. So set the
1158 * keys */
1159 restore_keys(usbdev);
1160
1161 priv->infra_mode = mode;
1162 return 0;
1163 }
1164
1165
1166 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1167 {
1168 __le32 tmp;
1169
1170 devdbg(usbdev, "set_rts_threshold %i", rts_threshold);
1171
1172 if (rts_threshold < 0 || rts_threshold > 2347)
1173 rts_threshold = 2347;
1174
1175 tmp = cpu_to_le32(rts_threshold);
1176 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1177 sizeof(tmp));
1178 }
1179
1180
1181 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1182 {
1183 __le32 tmp;
1184
1185 devdbg(usbdev, "set_frag_threshold %i", frag_threshold);
1186
1187 if (frag_threshold < 256 || frag_threshold > 2346)
1188 frag_threshold = 2346;
1189
1190 tmp = cpu_to_le32(frag_threshold);
1191 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1192 sizeof(tmp));
1193 }
1194
1195
1196 static void set_default_iw_params(struct usbnet *usbdev)
1197 {
1198 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1199
1200 priv->wpa_keymgmt = 0;
1201 priv->wpa_version = 0;
1202
1203 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1204 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1205 IW_AUTH_ALG_OPEN_SYSTEM);
1206 set_priv_filter(usbdev);
1207 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1208 }
1209
1210
1211 static int deauthenticate(struct usbnet *usbdev)
1212 {
1213 int ret;
1214
1215 ret = disassociate(usbdev, 1);
1216 set_default_iw_params(usbdev);
1217 return ret;
1218 }
1219
1220
1221 /* index must be 0 - N, as per NDIS */
1222 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
1223 {
1224 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1225 struct ndis_80211_wep_key ndis_key;
1226 int cipher, ret;
1227
1228 if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1229 return -EINVAL;
1230
1231 if (key_len == 5)
1232 cipher = WLAN_CIPHER_SUITE_WEP40;
1233 else
1234 cipher = WLAN_CIPHER_SUITE_WEP104;
1235
1236 memset(&ndis_key, 0, sizeof(ndis_key));
1237
1238 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1239 ndis_key.length = cpu_to_le32(key_len);
1240 ndis_key.index = cpu_to_le32(index);
1241 memcpy(&ndis_key.material, key, key_len);
1242
1243 if (index == priv->encr_tx_key_index) {
1244 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1245 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1246 IW_AUTH_CIPHER_NONE);
1247 if (ret)
1248 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1249 ret);
1250 }
1251
1252 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1253 sizeof(ndis_key));
1254 if (ret != 0) {
1255 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1256 index+1, ret);
1257 return ret;
1258 }
1259
1260 priv->encr_keys[index].len = key_len;
1261 priv->encr_keys[index].cipher = cipher;
1262 memcpy(&priv->encr_keys[index].material, key, key_len);
1263 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1264
1265 return 0;
1266 }
1267
1268
1269 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1270 int index, const u8 *addr, const u8 *rx_seq, int cipher,
1271 int flags)
1272 {
1273 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1274 struct ndis_80211_key ndis_key;
1275 bool is_addr_ok;
1276 int ret;
1277
1278 if (index < 0 || index >= 4) {
1279 devdbg(usbdev, "add_wpa_key: index out of range (%i)", index);
1280 return -EINVAL;
1281 }
1282 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1283 devdbg(usbdev, "add_wpa_key: key length out of range (%i)",
1284 key_len);
1285 return -EINVAL;
1286 }
1287 if ((flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) && !rx_seq) {
1288 devdbg(usbdev, "add_wpa_key: recv seq flag without buffer");
1289 return -EINVAL;
1290 }
1291 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1292 !is_broadcast_ether_addr(addr);
1293 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1294 devdbg(usbdev, "add_wpa_key: pairwise but bssid invalid (%pM)",
1295 addr);
1296 return -EINVAL;
1297 }
1298
1299 devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1300 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1301 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1302 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1303
1304 memset(&ndis_key, 0, sizeof(ndis_key));
1305
1306 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1307 sizeof(ndis_key.material) + key_len);
1308 ndis_key.length = cpu_to_le32(key_len);
1309 ndis_key.index = cpu_to_le32(index) | flags;
1310
1311 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1312 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1313 * different order than NDIS spec, so swap the order here. */
1314 memcpy(ndis_key.material, key, 16);
1315 memcpy(ndis_key.material + 16, key + 24, 8);
1316 memcpy(ndis_key.material + 24, key + 16, 8);
1317 } else
1318 memcpy(ndis_key.material, key, key_len);
1319
1320 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1321 memcpy(ndis_key.rsc, rx_seq, 6);
1322
1323 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1324 /* pairwise key */
1325 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1326 } else {
1327 /* group key */
1328 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1329 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1330 else
1331 get_bssid(usbdev, ndis_key.bssid);
1332 }
1333
1334 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1335 le32_to_cpu(ndis_key.size));
1336 devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1337 if (ret != 0)
1338 return ret;
1339
1340 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1341 priv->encr_keys[index].len = key_len;
1342 priv->encr_keys[index].cipher = cipher;
1343 memcpy(&priv->encr_keys[index].material, key, key_len);
1344 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1345 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1346 else
1347 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1348
1349 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1350 priv->encr_tx_key_index = index;
1351
1352 return 0;
1353 }
1354
1355
1356 static int restore_key(struct usbnet *usbdev, int key_idx)
1357 {
1358 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1359 struct rndis_wlan_encr_key key;
1360 int flags;
1361
1362 key = priv->encr_keys[key_idx];
1363
1364 devdbg(usbdev, "restore_key: %i:%s:%i", key_idx,
1365 is_wpa_key(priv, key_idx) ? "wpa" : "wep",
1366 key.len);
1367
1368 if (key.len == 0)
1369 return 0;
1370
1371 if (is_wpa_key(priv, key_idx)) {
1372 flags = 0;
1373
1374 /*if (priv->encr_tx_key_index == key_idx)
1375 flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY;*/
1376
1377 if (!is_zero_ether_addr(key.bssid) &&
1378 !is_broadcast_ether_addr(key.bssid))
1379 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY;
1380
1381 return add_wpa_key(usbdev, key.material, key.len, key_idx,
1382 key.bssid, NULL, key.cipher, flags);
1383 }
1384
1385 return add_wep_key(usbdev, key.material, key.len, key_idx);
1386 }
1387
1388
1389 static void restore_keys(struct usbnet *usbdev)
1390 {
1391 int i;
1392
1393 for (i = 0; i < 4; i++)
1394 restore_key(usbdev, i);
1395 }
1396
1397
1398 static void clear_key(struct rndis_wlan_private *priv, int idx)
1399 {
1400 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1401 }
1402
1403
1404 /* remove_key is for both wep and wpa */
1405 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1406 {
1407 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1408 struct ndis_80211_remove_key remove_key;
1409 __le32 keyindex;
1410 bool is_wpa;
1411 int ret;
1412
1413 if (priv->encr_keys[index].len == 0)
1414 return 0;
1415
1416 is_wpa = is_wpa_key(priv, index);
1417
1418 devdbg(usbdev, "remove_key: %i:%s:%i", index, is_wpa ? "wpa" : "wep",
1419 priv->encr_keys[index].len);
1420
1421 clear_key(priv, index);
1422
1423 if (is_wpa) {
1424 remove_key.size = cpu_to_le32(sizeof(remove_key));
1425 remove_key.index = cpu_to_le32(index);
1426 if (bssid) {
1427 /* pairwise key */
1428 if (!is_broadcast_ether_addr(bssid))
1429 remove_key.index |=
1430 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1431 memcpy(remove_key.bssid, bssid,
1432 sizeof(remove_key.bssid));
1433 } else
1434 memset(remove_key.bssid, 0xff,
1435 sizeof(remove_key.bssid));
1436
1437 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1438 sizeof(remove_key));
1439 if (ret != 0)
1440 return ret;
1441 } else {
1442 keyindex = cpu_to_le32(index);
1443 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1444 sizeof(keyindex));
1445 if (ret != 0) {
1446 devwarn(usbdev,
1447 "removing encryption key %d failed (%08X)",
1448 index, ret);
1449 return ret;
1450 }
1451 }
1452
1453 /* if it is transmit key, disable encryption */
1454 if (index == priv->encr_tx_key_index)
1455 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1456
1457 return 0;
1458 }
1459
1460
1461 static void set_multicast_list(struct usbnet *usbdev)
1462 {
1463 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1464 struct dev_mc_list *mclist;
1465 __le32 filter;
1466 int ret, i, size;
1467 char *buf;
1468
1469 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1470
1471 if (usbdev->net->flags & IFF_PROMISC) {
1472 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1473 RNDIS_PACKET_TYPE_ALL_LOCAL;
1474 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1475 usbdev->net->mc_count > priv->multicast_size) {
1476 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1477 } else if (usbdev->net->mc_count > 0) {
1478 size = min(priv->multicast_size, usbdev->net->mc_count);
1479 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1480 if (!buf) {
1481 devwarn(usbdev,
1482 "couldn't alloc %d bytes of memory",
1483 size * ETH_ALEN);
1484 return;
1485 }
1486
1487 mclist = usbdev->net->mc_list;
1488 for (i = 0; i < size && mclist; mclist = mclist->next) {
1489 if (mclist->dmi_addrlen != ETH_ALEN)
1490 continue;
1491
1492 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1493 i++;
1494 }
1495
1496 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1497 i * ETH_ALEN);
1498 if (ret == 0 && i > 0)
1499 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1500 else
1501 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1502
1503 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1504 i, priv->multicast_size, ret);
1505
1506 kfree(buf);
1507 }
1508
1509 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1510 sizeof(filter));
1511 if (ret < 0) {
1512 devwarn(usbdev, "couldn't set packet filter: %08x",
1513 le32_to_cpu(filter));
1514 }
1515
1516 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1517 le32_to_cpu(filter), ret);
1518 }
1519
1520
1521 /*
1522 * cfg80211 ops
1523 */
1524 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1525 struct net_device *dev,
1526 enum nl80211_iftype type, u32 *flags,
1527 struct vif_params *params)
1528 {
1529 struct usbnet *usbdev = netdev_priv(dev);
1530 int mode;
1531
1532 switch (type) {
1533 case NL80211_IFTYPE_ADHOC:
1534 mode = NDIS_80211_INFRA_ADHOC;
1535 break;
1536 case NL80211_IFTYPE_STATION:
1537 mode = NDIS_80211_INFRA_INFRA;
1538 break;
1539 default:
1540 return -EINVAL;
1541 }
1542
1543 return set_infra_mode(usbdev, mode);
1544 }
1545
1546
1547 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1548 {
1549 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1550 struct usbnet *usbdev = priv->usbdev;
1551 int err;
1552
1553 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1554 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1555 if (err < 0)
1556 return err;
1557 }
1558
1559 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1560 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1561 if (err < 0)
1562 return err;
1563 }
1564
1565 return 0;
1566 }
1567
1568
1569 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
1570 int dbm)
1571 {
1572 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1573 struct usbnet *usbdev = priv->usbdev;
1574
1575 devdbg(usbdev, "rndis_set_tx_power type:0x%x dbm:%i", type, dbm);
1576
1577 /* Device doesn't support changing txpower after initialization, only
1578 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1579 * currently used.
1580 */
1581 if (type == TX_POWER_AUTOMATIC || dbm == get_bcm4320_power_dbm(priv)) {
1582 if (!priv->radio_on)
1583 disassociate(usbdev, 1); /* turn on radio */
1584
1585 return 0;
1586 }
1587
1588 return -ENOTSUPP;
1589 }
1590
1591
1592 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1593 {
1594 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1595 struct usbnet *usbdev = priv->usbdev;
1596
1597 *dbm = get_bcm4320_power_dbm(priv);
1598
1599 devdbg(usbdev, "rndis_get_tx_power dbm:%i", *dbm);
1600
1601 return 0;
1602 }
1603
1604
1605 #define SCAN_DELAY_JIFFIES (6 * HZ)
1606 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1607 struct cfg80211_scan_request *request)
1608 {
1609 struct usbnet *usbdev = netdev_priv(dev);
1610 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1611 int ret;
1612 __le32 tmp;
1613
1614 devdbg(usbdev, "cfg80211.scan");
1615
1616 /* Get current bssid list from device before new scan, as new scan
1617 * clears internal bssid list.
1618 */
1619 rndis_check_bssid_list(usbdev);
1620
1621 if (!request)
1622 return -EINVAL;
1623
1624 if (priv->scan_request && priv->scan_request != request)
1625 return -EBUSY;
1626
1627 priv->scan_request = request;
1628
1629 tmp = cpu_to_le32(1);
1630 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1631 sizeof(tmp));
1632 if (ret == 0) {
1633 /* Wait before retrieving scan results from device */
1634 queue_delayed_work(priv->workqueue, &priv->scan_work,
1635 SCAN_DELAY_JIFFIES);
1636 }
1637
1638 return ret;
1639 }
1640
1641
1642 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1643 struct ndis_80211_bssid_ex *bssid)
1644 {
1645 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1646 struct ieee80211_channel *channel;
1647 s32 signal;
1648 u64 timestamp;
1649 u16 capability;
1650 u16 beacon_interval;
1651 struct ndis_80211_fixed_ies *fixed;
1652 int ie_len, bssid_len;
1653 u8 *ie;
1654
1655 devdbg(usbdev, " found bssid: '%.32s' [%pM]", bssid->ssid.essid,
1656 bssid->mac);
1657
1658 /* parse bssid structure */
1659 bssid_len = le32_to_cpu(bssid->length);
1660
1661 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1662 sizeof(struct ndis_80211_fixed_ies))
1663 return NULL;
1664
1665 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1666
1667 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1668 ie_len = min(bssid_len - (int)sizeof(*bssid),
1669 (int)le32_to_cpu(bssid->ie_length));
1670 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1671 if (ie_len < 0)
1672 return NULL;
1673
1674 /* extract data for cfg80211_inform_bss */
1675 channel = ieee80211_get_channel(priv->wdev.wiphy,
1676 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1677 if (!channel)
1678 return NULL;
1679
1680 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1681 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1682 capability = le16_to_cpu(fixed->capabilities);
1683 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1684
1685 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1686 timestamp, capability, beacon_interval, ie, ie_len, signal,
1687 GFP_KERNEL);
1688 }
1689
1690
1691 static int rndis_check_bssid_list(struct usbnet *usbdev)
1692 {
1693 void *buf = NULL;
1694 struct ndis_80211_bssid_list_ex *bssid_list;
1695 struct ndis_80211_bssid_ex *bssid;
1696 int ret = -EINVAL, len, count, bssid_len;
1697 bool resized = false;
1698
1699 devdbg(usbdev, "check_bssid_list");
1700
1701 len = CONTROL_BUFFER_SIZE;
1702 resize_buf:
1703 buf = kmalloc(len, GFP_KERNEL);
1704 if (!buf) {
1705 ret = -ENOMEM;
1706 goto out;
1707 }
1708
1709 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1710 if (ret != 0)
1711 goto out;
1712
1713 if (!resized && len > CONTROL_BUFFER_SIZE) {
1714 resized = true;
1715 kfree(buf);
1716 goto resize_buf;
1717 }
1718
1719 bssid_list = buf;
1720 bssid = bssid_list->bssid;
1721 bssid_len = le32_to_cpu(bssid->length);
1722 count = le32_to_cpu(bssid_list->num_items);
1723 devdbg(usbdev, "check_bssid_list: %d BSSIDs found (buflen: %d)", count,
1724 len);
1725
1726 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1727 rndis_bss_info_update(usbdev, bssid);
1728
1729 bssid = (void *)bssid + bssid_len;
1730 bssid_len = le32_to_cpu(bssid->length);
1731 count--;
1732 }
1733
1734 out:
1735 kfree(buf);
1736 return ret;
1737 }
1738
1739
1740 static void rndis_get_scan_results(struct work_struct *work)
1741 {
1742 struct rndis_wlan_private *priv =
1743 container_of(work, struct rndis_wlan_private, scan_work.work);
1744 struct usbnet *usbdev = priv->usbdev;
1745 int ret;
1746
1747 devdbg(usbdev, "get_scan_results");
1748
1749 if (!priv->scan_request)
1750 return;
1751
1752 ret = rndis_check_bssid_list(usbdev);
1753
1754 cfg80211_scan_done(priv->scan_request, ret < 0);
1755
1756 priv->scan_request = NULL;
1757 }
1758
1759
1760 /*
1761 * wireless extension handlers
1762 */
1763
1764 static int rndis_iw_commit(struct net_device *dev,
1765 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1766 {
1767 /* dummy op */
1768 return 0;
1769 }
1770
1771
1772 static int rndis_iw_set_essid(struct net_device *dev,
1773 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1774 {
1775 struct ndis_80211_ssid ssid;
1776 int length = wrqu->essid.length;
1777 struct usbnet *usbdev = netdev_priv(dev);
1778
1779 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1780 wrqu->essid.flags, wrqu->essid.length, essid);
1781
1782 if (length > NDIS_802_11_LENGTH_SSID)
1783 length = NDIS_802_11_LENGTH_SSID;
1784
1785 ssid.length = cpu_to_le32(length);
1786 if (length > 0)
1787 memcpy(ssid.essid, essid, length);
1788 else
1789 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1790
1791 set_assoc_params(usbdev);
1792
1793 if (!wrqu->essid.flags || length == 0)
1794 return disassociate(usbdev, 1);
1795 else {
1796 /* Pause and purge rx queue, so we don't pass packets before
1797 * 'media connect'-indication.
1798 */
1799 usbnet_pause_rx(usbdev);
1800 usbnet_purge_paused_rxq(usbdev);
1801
1802 return set_essid(usbdev, &ssid);
1803 }
1804 }
1805
1806
1807 static int rndis_iw_get_essid(struct net_device *dev,
1808 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1809 {
1810 struct ndis_80211_ssid ssid;
1811 struct usbnet *usbdev = netdev_priv(dev);
1812 int ret;
1813
1814 ret = get_essid(usbdev, &ssid);
1815
1816 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1817 wrqu->essid.flags = 1;
1818 wrqu->essid.length = le32_to_cpu(ssid.length);
1819 memcpy(essid, ssid.essid, wrqu->essid.length);
1820 essid[wrqu->essid.length] = 0;
1821 } else {
1822 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1823 wrqu->essid.flags = 0;
1824 wrqu->essid.length = 0;
1825 }
1826 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1827 return ret;
1828 }
1829
1830
1831 static int rndis_iw_get_bssid(struct net_device *dev,
1832 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1833 {
1834 struct usbnet *usbdev = netdev_priv(dev);
1835 unsigned char bssid[ETH_ALEN];
1836 int ret;
1837
1838 ret = get_bssid(usbdev, bssid);
1839
1840 if (ret == 0)
1841 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1842 else
1843 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1844
1845 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1846 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1847
1848 return ret;
1849 }
1850
1851
1852 static int rndis_iw_set_bssid(struct net_device *dev,
1853 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1854 {
1855 struct usbnet *usbdev = netdev_priv(dev);
1856 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1857 int ret;
1858
1859 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1860
1861 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1862
1863 /* user apps may set ap's mac address, which is not required;
1864 * they may fail to work if this function fails, so return
1865 * success */
1866 if (ret)
1867 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1868
1869 return 0;
1870 }
1871
1872
1873 static int rndis_iw_set_auth(struct net_device *dev,
1874 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1875 {
1876 struct iw_param *p = &wrqu->param;
1877 struct usbnet *usbdev = netdev_priv(dev);
1878 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1879 int ret = -ENOTSUPP;
1880
1881 switch (p->flags & IW_AUTH_INDEX) {
1882 case IW_AUTH_WPA_VERSION:
1883 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1884 priv->wpa_version = p->value;
1885 ret = 0;
1886 break;
1887
1888 case IW_AUTH_CIPHER_PAIRWISE:
1889 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1890 priv->wpa_cipher_pair = p->value;
1891 ret = 0;
1892 break;
1893
1894 case IW_AUTH_CIPHER_GROUP:
1895 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1896 priv->wpa_cipher_group = p->value;
1897 ret = 0;
1898 break;
1899
1900 case IW_AUTH_KEY_MGMT:
1901 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1902 priv->wpa_keymgmt = p->value;
1903 ret = 0;
1904 break;
1905
1906 case IW_AUTH_TKIP_COUNTERMEASURES:
1907 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1908 p->value);
1909 ret = 0;
1910 break;
1911
1912 case IW_AUTH_DROP_UNENCRYPTED:
1913 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1914 ret = 0;
1915 break;
1916
1917 case IW_AUTH_80211_AUTH_ALG:
1918 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1919 priv->wpa_authalg = p->value;
1920 ret = 0;
1921 break;
1922
1923 case IW_AUTH_WPA_ENABLED:
1924 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1925 if (wrqu->param.value)
1926 deauthenticate(usbdev);
1927 ret = 0;
1928 break;
1929
1930 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1931 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1932 p->value);
1933 ret = 0;
1934 break;
1935
1936 case IW_AUTH_ROAMING_CONTROL:
1937 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1938 ret = 0;
1939 break;
1940
1941 case IW_AUTH_PRIVACY_INVOKED:
1942 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1943 wrqu->param.flags & IW_AUTH_INDEX);
1944 return -EOPNOTSUPP;
1945
1946 default:
1947 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1948 p->flags & IW_AUTH_INDEX, p->value);
1949 }
1950 return ret;
1951 }
1952
1953
1954 static int rndis_iw_get_auth(struct net_device *dev,
1955 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1956 {
1957 struct iw_param *p = &wrqu->param;
1958 struct usbnet *usbdev = netdev_priv(dev);
1959 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1960
1961 switch (p->flags & IW_AUTH_INDEX) {
1962 case IW_AUTH_WPA_VERSION:
1963 p->value = priv->wpa_version;
1964 break;
1965 case IW_AUTH_CIPHER_PAIRWISE:
1966 p->value = priv->wpa_cipher_pair;
1967 break;
1968 case IW_AUTH_CIPHER_GROUP:
1969 p->value = priv->wpa_cipher_group;
1970 break;
1971 case IW_AUTH_KEY_MGMT:
1972 p->value = priv->wpa_keymgmt;
1973 break;
1974 case IW_AUTH_80211_AUTH_ALG:
1975 p->value = priv->wpa_authalg;
1976 break;
1977 default:
1978 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1979 wrqu->param.flags & IW_AUTH_INDEX);
1980 return -EOPNOTSUPP;
1981 }
1982 return 0;
1983 }
1984
1985
1986 static int rndis_iw_set_encode(struct net_device *dev,
1987 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1988 {
1989 struct usbnet *usbdev = netdev_priv(dev);
1990 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1991 struct rndis_wlan_encr_key key;
1992 int ret, index, key_len;
1993 u8 *keybuf;
1994
1995 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1996
1997 /* iwconfig gives index as 1 - N */
1998 if (index > 0)
1999 index--;
2000 else
2001 index = priv->encr_tx_key_index;
2002
2003 if (index < 0 || index >= 4) {
2004 devwarn(usbdev, "encryption index out of range (%u)", index);
2005 return -EINVAL;
2006 }
2007
2008 /* remove key if disabled */
2009 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
2010 if (remove_key(usbdev, index, NULL))
2011 return -EINVAL;
2012 else
2013 return 0;
2014 }
2015
2016 /* global encryption state (for all keys) */
2017 if (wrqu->data.flags & IW_ENCODE_OPEN)
2018 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
2019 IW_AUTH_ALG_OPEN_SYSTEM);
2020 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
2021 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
2022 IW_AUTH_ALG_SHARED_KEY);
2023 if (ret != 0)
2024 return ret;
2025
2026 if (wrqu->data.length > 0) {
2027 key_len = wrqu->data.length;
2028 keybuf = extra;
2029 } else {
2030 /* must be set as tx key */
2031 if (priv->encr_keys[index].len == 0)
2032 return -EINVAL;
2033 key = priv->encr_keys[index];
2034 key_len = key.len;
2035 keybuf = key.material;
2036 priv->encr_tx_key_index = index;
2037 }
2038
2039 if (add_wep_key(usbdev, keybuf, key_len, index) != 0)
2040 return -EINVAL;
2041
2042 if (index == priv->encr_tx_key_index)
2043 /* ndis drivers want essid to be set after setting encr */
2044 set_essid(usbdev, &priv->essid);
2045
2046 return 0;
2047 }
2048
2049
2050 static int rndis_iw_set_encode_ext(struct net_device *dev,
2051 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2052 {
2053 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
2054 struct usbnet *usbdev = netdev_priv(dev);
2055 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2056 int keyidx, flags, cipher;
2057
2058 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
2059
2060 /* iwconfig gives index as 1 - N */
2061 if (keyidx)
2062 keyidx--;
2063 else
2064 keyidx = priv->encr_tx_key_index;
2065
2066 if (keyidx < 0 || keyidx >= 4) {
2067 devwarn(usbdev, "encryption index out of range (%u)", keyidx);
2068 return -EINVAL;
2069 }
2070
2071 if (ext->alg == WPA_ALG_WEP) {
2072 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
2073 priv->encr_tx_key_index = keyidx;
2074 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
2075 }
2076
2077 cipher = -1;
2078 if (ext->alg == IW_ENCODE_ALG_TKIP)
2079 cipher = WLAN_CIPHER_SUITE_TKIP;
2080 else if (ext->alg == IW_ENCODE_ALG_CCMP)
2081 cipher = WLAN_CIPHER_SUITE_CCMP;
2082
2083 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
2084 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
2085 return remove_key(usbdev, keyidx, NULL);
2086
2087 if (cipher == -1)
2088 return -EOPNOTSUPP;
2089
2090 flags = 0;
2091 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID)
2092 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2093 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY))
2094 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY;
2095 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
2096 flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY;
2097
2098 return add_wpa_key(usbdev, ext->key, ext->key_len, keyidx,
2099 (u8 *)&ext->addr.sa_data, ext->rx_seq, cipher,
2100 flags);
2101 }
2102
2103
2104 static int rndis_iw_set_genie(struct net_device *dev,
2105 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2106 {
2107 struct usbnet *usbdev = netdev_priv(dev);
2108 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2109 int ret = 0;
2110
2111 #ifdef DEBUG
2112 int j;
2113 u8 *gie = extra;
2114 for (j = 0; j < wrqu->data.length; j += 8)
2115 devdbg(usbdev,
2116 "SIOCSIWGENIE %04x - "
2117 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
2118 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
2119 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
2120 #endif
2121 /* clear existing IEs */
2122 if (priv->wpa_ie_len) {
2123 kfree(priv->wpa_ie);
2124 priv->wpa_ie_len = 0;
2125 }
2126
2127 /* set new IEs */
2128 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
2129 if (priv->wpa_ie) {
2130 priv->wpa_ie_len = wrqu->data.length;
2131 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
2132 } else
2133 ret = -ENOMEM;
2134 return ret;
2135 }
2136
2137
2138 static int rndis_iw_get_genie(struct net_device *dev,
2139 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2140 {
2141 struct usbnet *usbdev = netdev_priv(dev);
2142 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2143
2144 devdbg(usbdev, "SIOCGIWGENIE");
2145
2146 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
2147 wrqu->data.length = 0;
2148 return 0;
2149 }
2150
2151 if (wrqu->data.length < priv->wpa_ie_len)
2152 return -E2BIG;
2153
2154 wrqu->data.length = priv->wpa_ie_len;
2155 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
2156
2157 return 0;
2158 }
2159
2160
2161 static int rndis_iw_set_freq(struct net_device *dev,
2162 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2163 {
2164 struct usbnet *usbdev = netdev_priv(dev);
2165 struct ndis_80211_conf config;
2166 unsigned int dsconfig;
2167 int len, ret;
2168
2169 /* this OID is valid only when not associated */
2170 if (is_associated(usbdev))
2171 return 0;
2172
2173 dsconfig = 0;
2174 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
2175 return -EINVAL;
2176
2177 len = sizeof(config);
2178 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2179 if (ret != 0) {
2180 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
2181 return 0;
2182 }
2183
2184 config.ds_config = cpu_to_le32(dsconfig);
2185
2186 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
2187 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
2188 sizeof(config));
2189 }
2190
2191
2192 static int rndis_iw_get_freq(struct net_device *dev,
2193 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2194 {
2195 struct usbnet *usbdev = netdev_priv(dev);
2196 struct ndis_80211_conf config;
2197 int len, ret;
2198
2199 len = sizeof(config);
2200 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2201 if (ret == 0)
2202 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
2203
2204 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
2205 return ret;
2206 }
2207
2208
2209 static int rndis_iw_get_rate(struct net_device *dev,
2210 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2211 {
2212 struct usbnet *usbdev = netdev_priv(dev);
2213 __le32 tmp;
2214 int ret, len;
2215
2216 len = sizeof(tmp);
2217 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
2218 if (ret == 0) {
2219 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
2220 wrqu->bitrate.disabled = 0;
2221 wrqu->bitrate.flags = 1;
2222 }
2223 return ret;
2224 }
2225
2226
2227 static int rndis_iw_set_mlme(struct net_device *dev,
2228 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2229 {
2230 struct usbnet *usbdev = netdev_priv(dev);
2231 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2232 struct iw_mlme *mlme = (struct iw_mlme *)extra;
2233 unsigned char bssid[ETH_ALEN];
2234
2235 get_bssid(usbdev, bssid);
2236
2237 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
2238 return -EINVAL;
2239
2240 switch (mlme->cmd) {
2241 case IW_MLME_DEAUTH:
2242 return deauthenticate(usbdev);
2243 case IW_MLME_DISASSOC:
2244 return disassociate(usbdev, priv->radio_on);
2245 default:
2246 return -EOPNOTSUPP;
2247 }
2248
2249 return 0;
2250 }
2251
2252
2253 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
2254 {
2255 struct usbnet *usbdev = netdev_priv(dev);
2256 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2257 unsigned long flags;
2258
2259 spin_lock_irqsave(&priv->stats_lock, flags);
2260 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
2261 spin_unlock_irqrestore(&priv->stats_lock, flags);
2262
2263 return &priv->iwstats;
2264 }
2265
2266
2267 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2268 static const iw_handler rndis_iw_handler[] =
2269 {
2270 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
2271 IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname,
2272 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
2273 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
2274 IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode,
2275 IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode,
2276 IW_IOCTL(SIOCGIWRANGE) = (iw_handler) cfg80211_wext_giwrange,
2277 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
2278 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
2279 IW_IOCTL(SIOCSIWSCAN) = (iw_handler) cfg80211_wext_siwscan,
2280 IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan,
2281 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
2282 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
2283 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
2284 IW_IOCTL(SIOCSIWRTS) = (iw_handler) cfg80211_wext_siwrts,
2285 IW_IOCTL(SIOCGIWRTS) = (iw_handler) cfg80211_wext_giwrts,
2286 IW_IOCTL(SIOCSIWFRAG) = (iw_handler) cfg80211_wext_siwfrag,
2287 IW_IOCTL(SIOCGIWFRAG) = (iw_handler) cfg80211_wext_giwfrag,
2288 IW_IOCTL(SIOCSIWTXPOW) = (iw_handler) cfg80211_wext_siwtxpower,
2289 IW_IOCTL(SIOCGIWTXPOW) = (iw_handler) cfg80211_wext_giwtxpower,
2290 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2291 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2292 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2293 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2294 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2295 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2296 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2297 };
2298
2299 static const iw_handler rndis_wlan_private_handler[] = {
2300 };
2301
2302 static const struct iw_priv_args rndis_wlan_private_args[] = {
2303 };
2304
2305
2306 static const struct iw_handler_def rndis_iw_handlers = {
2307 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2308 .num_private = ARRAY_SIZE(rndis_wlan_private_handler),
2309 .num_private_args = ARRAY_SIZE(rndis_wlan_private_args),
2310 .standard = (iw_handler *)rndis_iw_handler,
2311 .private = (iw_handler *)rndis_wlan_private_handler,
2312 .private_args = (struct iw_priv_args *)rndis_wlan_private_args,
2313 .get_wireless_stats = rndis_get_wireless_stats,
2314 };
2315
2316
2317 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2318 {
2319 struct ndis_80211_assoc_info *info;
2320 union iwreq_data evt;
2321 u8 assoc_buf[sizeof(*info) + IW_CUSTOM_MAX + 32];
2322 u8 bssid[ETH_ALEN];
2323 int ret, offset;
2324
2325 memset(assoc_buf, 0, sizeof(assoc_buf));
2326 info = (void *)assoc_buf;
2327
2328 netif_carrier_on(usbdev->net);
2329
2330 /* Get association info IEs from device and send them back to
2331 * userspace. */
2332 ret = get_association_info(usbdev, info, sizeof(assoc_buf));
2333 if (!ret) {
2334 evt.data.length = le32_to_cpu(info->req_ie_length);
2335 if (evt.data.length > 0) {
2336 offset = le32_to_cpu(info->offset_req_ies);
2337 wireless_send_event(usbdev->net,
2338 IWEVASSOCREQIE, &evt,
2339 (char *)info + offset);
2340 }
2341
2342 evt.data.length = le32_to_cpu(info->resp_ie_length);
2343 if (evt.data.length > 0) {
2344 offset = le32_to_cpu(info->offset_resp_ies);
2345 wireless_send_event(usbdev->net,
2346 IWEVASSOCRESPIE, &evt,
2347 (char *)info + offset);
2348 }
2349
2350 usbnet_resume_rx(usbdev);
2351 }
2352
2353 ret = get_bssid(usbdev, bssid);
2354 if (!ret) {
2355 evt.data.flags = 0;
2356 evt.data.length = 0;
2357 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2358 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2359 }
2360
2361 usbnet_resume_rx(usbdev);
2362 }
2363
2364 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2365 {
2366 union iwreq_data evt;
2367
2368 netif_carrier_off(usbdev->net);
2369
2370 evt.data.flags = 0;
2371 evt.data.length = 0;
2372 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2373 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2374 }
2375
2376 static void rndis_wlan_worker(struct work_struct *work)
2377 {
2378 struct rndis_wlan_private *priv =
2379 container_of(work, struct rndis_wlan_private, work);
2380 struct usbnet *usbdev = priv->usbdev;
2381
2382 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2383 rndis_wlan_do_link_up_work(usbdev);
2384
2385 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2386 rndis_wlan_do_link_down_work(usbdev);
2387
2388 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2389 set_multicast_list(usbdev);
2390 }
2391
2392 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2393 {
2394 struct usbnet *usbdev = netdev_priv(dev);
2395 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2396
2397 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2398 return;
2399
2400 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2401 queue_work(priv->workqueue, &priv->work);
2402 }
2403
2404
2405 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2406 struct ndis_80211_status_indication *indication,
2407 int len)
2408 {
2409 u8 *buf;
2410 const char *type;
2411 int flags, buflen;
2412 bool pairwise_error, group_error;
2413 struct ndis_80211_auth_request *auth_req;
2414
2415 /* must have at least one array entry */
2416 if (len < offsetof(struct ndis_80211_status_indication, u) +
2417 sizeof(struct ndis_80211_auth_request)) {
2418 devinfo(usbdev, "authentication indication: "
2419 "too short message (%i)", len);
2420 return;
2421 }
2422
2423 buf = (void *)&indication->u.auth_request[0];
2424 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2425
2426 while (buflen >= sizeof(*auth_req)) {
2427 auth_req = (void *)buf;
2428 type = "unknown";
2429 flags = le32_to_cpu(auth_req->flags);
2430 pairwise_error = false;
2431 group_error = false;
2432
2433 if (flags & 0x1)
2434 type = "reauth request";
2435 if (flags & 0x2)
2436 type = "key update request";
2437 if (flags & 0x6) {
2438 pairwise_error = true;
2439 type = "pairwise_error";
2440 }
2441 if (flags & 0xe) {
2442 group_error = true;
2443 type = "group_error";
2444 }
2445
2446 devinfo(usbdev, "authentication indication: %s (0x%08x)", type,
2447 le32_to_cpu(auth_req->flags));
2448
2449 if (pairwise_error || group_error) {
2450 union iwreq_data wrqu;
2451 struct iw_michaelmicfailure micfailure;
2452
2453 memset(&micfailure, 0, sizeof(micfailure));
2454 if (pairwise_error)
2455 micfailure.flags |= IW_MICFAILURE_PAIRWISE;
2456 if (group_error)
2457 micfailure.flags |= IW_MICFAILURE_GROUP;
2458
2459 memcpy(micfailure.src_addr.sa_data, auth_req->bssid,
2460 ETH_ALEN);
2461
2462 memset(&wrqu, 0, sizeof(wrqu));
2463 wrqu.data.length = sizeof(micfailure);
2464 wireless_send_event(usbdev->net, IWEVMICHAELMICFAILURE,
2465 &wrqu, (u8 *)&micfailure);
2466 }
2467
2468 buflen -= le32_to_cpu(auth_req->length);
2469 buf += le32_to_cpu(auth_req->length);
2470 }
2471 }
2472
2473 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2474 struct ndis_80211_status_indication *indication,
2475 int len)
2476 {
2477 struct ndis_80211_pmkid_cand_list *cand_list;
2478 int list_len, expected_len, i;
2479
2480 if (len < offsetof(struct ndis_80211_status_indication, u) +
2481 sizeof(struct ndis_80211_pmkid_cand_list)) {
2482 devinfo(usbdev, "pmkid candidate list indication: "
2483 "too short message (%i)", len);
2484 return;
2485 }
2486
2487 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2488 sizeof(struct ndis_80211_pmkid_candidate);
2489 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2490 offsetof(struct ndis_80211_status_indication, u);
2491
2492 if (len < expected_len) {
2493 devinfo(usbdev, "pmkid candidate list indication: "
2494 "list larger than buffer (%i < %i)",
2495 len, expected_len);
2496 return;
2497 }
2498
2499 cand_list = &indication->u.cand_list;
2500
2501 devinfo(usbdev, "pmkid candidate list indication: "
2502 "version %i, candidates %i",
2503 le32_to_cpu(cand_list->version),
2504 le32_to_cpu(cand_list->num_candidates));
2505
2506 if (le32_to_cpu(cand_list->version) != 1)
2507 return;
2508
2509 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2510 struct iw_pmkid_cand pcand;
2511 union iwreq_data wrqu;
2512 struct ndis_80211_pmkid_candidate *cand =
2513 &cand_list->candidate_list[i];
2514
2515 devdbg(usbdev, "cand[%i]: flags: 0x%08x, bssid: %pM",
2516 i, le32_to_cpu(cand->flags), cand->bssid);
2517
2518 memset(&pcand, 0, sizeof(pcand));
2519 if (le32_to_cpu(cand->flags) & 0x01)
2520 pcand.flags |= IW_PMKID_CAND_PREAUTH;
2521 pcand.index = i;
2522 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2523
2524 memset(&wrqu, 0, sizeof(wrqu));
2525 wrqu.data.length = sizeof(pcand);
2526 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2527 (u8 *)&pcand);
2528 }
2529 }
2530
2531 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2532 struct rndis_indicate *msg, int buflen)
2533 {
2534 struct ndis_80211_status_indication *indication;
2535 int len, offset;
2536
2537 offset = offsetof(struct rndis_indicate, status) +
2538 le32_to_cpu(msg->offset);
2539 len = le32_to_cpu(msg->length);
2540
2541 if (len < 8) {
2542 devinfo(usbdev, "media specific indication, "
2543 "ignore too short message (%i < 8)", len);
2544 return;
2545 }
2546
2547 if (offset + len > buflen) {
2548 devinfo(usbdev, "media specific indication, "
2549 "too large to fit to buffer (%i > %i)",
2550 offset + len, buflen);
2551 return;
2552 }
2553
2554 indication = (void *)((u8 *)msg + offset);
2555
2556 switch (le32_to_cpu(indication->status_type)) {
2557 case NDIS_80211_STATUSTYPE_RADIOSTATE:
2558 devinfo(usbdev, "radio state indication: %i",
2559 le32_to_cpu(indication->u.radio_status));
2560 return;
2561
2562 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
2563 devinfo(usbdev, "media stream mode indication: %i",
2564 le32_to_cpu(indication->u.media_stream_mode));
2565 return;
2566
2567 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2568 rndis_wlan_auth_indication(usbdev, indication, len);
2569 return;
2570
2571 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2572 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2573 return;
2574
2575 default:
2576 devinfo(usbdev, "media specific indication: "
2577 "unknown status type 0x%08x",
2578 le32_to_cpu(indication->status_type));
2579 }
2580 }
2581
2582
2583 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
2584 {
2585 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2586 struct rndis_indicate *msg = ind;
2587
2588 switch (msg->status) {
2589 case RNDIS_STATUS_MEDIA_CONNECT:
2590 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2591 /* OID_802_11_ADD_KEY causes sometimes extra
2592 * "media connect" indications which confuses driver
2593 * and userspace to think that device is
2594 * roaming/reassociating when it isn't.
2595 */
2596 devdbg(usbdev, "ignored OID_802_11_ADD_KEY triggered "
2597 "'media connect'");
2598 return;
2599 }
2600
2601 usbnet_pause_rx(usbdev);
2602
2603 devinfo(usbdev, "media connect");
2604
2605 /* queue work to avoid recursive calls into rndis_command */
2606 set_bit(WORK_LINK_UP, &priv->work_pending);
2607 queue_work(priv->workqueue, &priv->work);
2608 break;
2609
2610 case RNDIS_STATUS_MEDIA_DISCONNECT:
2611 devinfo(usbdev, "media disconnect");
2612
2613 /* queue work to avoid recursive calls into rndis_command */
2614 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2615 queue_work(priv->workqueue, &priv->work);
2616 break;
2617
2618 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2619 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2620 break;
2621
2622 default:
2623 devinfo(usbdev, "indication: 0x%08x",
2624 le32_to_cpu(msg->status));
2625 break;
2626 }
2627 }
2628
2629
2630 static int rndis_wlan_get_caps(struct usbnet *usbdev)
2631 {
2632 struct {
2633 __le32 num_items;
2634 __le32 items[8];
2635 } networks_supported;
2636 int len, retval, i, n;
2637 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2638
2639 /* determine supported modes */
2640 len = sizeof(networks_supported);
2641 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2642 &networks_supported, &len);
2643 if (retval >= 0) {
2644 n = le32_to_cpu(networks_supported.num_items);
2645 if (n > 8)
2646 n = 8;
2647 for (i = 0; i < n; i++) {
2648 switch (le32_to_cpu(networks_supported.items[i])) {
2649 case NDIS_80211_TYPE_FREQ_HOP:
2650 case NDIS_80211_TYPE_DIRECT_SEQ:
2651 priv->caps |= CAP_MODE_80211B;
2652 break;
2653 case NDIS_80211_TYPE_OFDM_A:
2654 priv->caps |= CAP_MODE_80211A;
2655 break;
2656 case NDIS_80211_TYPE_OFDM_G:
2657 priv->caps |= CAP_MODE_80211G;
2658 break;
2659 }
2660 }
2661 }
2662
2663 return retval;
2664 }
2665
2666
2667 #define STATS_UPDATE_JIFFIES (HZ)
2668 static void rndis_update_wireless_stats(struct work_struct *work)
2669 {
2670 struct rndis_wlan_private *priv =
2671 container_of(work, struct rndis_wlan_private, stats_work.work);
2672 struct usbnet *usbdev = priv->usbdev;
2673 struct iw_statistics iwstats;
2674 __le32 rssi, tmp;
2675 int len, ret, j;
2676 unsigned long flags;
2677 int update_jiffies = STATS_UPDATE_JIFFIES;
2678 void *buf;
2679
2680 spin_lock_irqsave(&priv->stats_lock, flags);
2681 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2682 spin_unlock_irqrestore(&priv->stats_lock, flags);
2683
2684 /* only update stats when connected */
2685 if (!is_associated(usbdev)) {
2686 iwstats.qual.qual = 0;
2687 iwstats.qual.level = 0;
2688 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2689 | IW_QUAL_LEVEL_UPDATED
2690 | IW_QUAL_NOISE_INVALID
2691 | IW_QUAL_QUAL_INVALID
2692 | IW_QUAL_LEVEL_INVALID;
2693 goto end;
2694 }
2695
2696 len = sizeof(rssi);
2697 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2698
2699 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2700 le32_to_cpu(rssi));
2701 if (ret == 0) {
2702 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2703 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2704 iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
2705 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2706 | IW_QUAL_LEVEL_UPDATED
2707 | IW_QUAL_NOISE_INVALID;
2708 }
2709
2710 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2711
2712 len = sizeof(tmp);
2713 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2714 if (ret == 0)
2715 iwstats.discard.misc += le32_to_cpu(tmp);
2716
2717 len = sizeof(tmp);
2718 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2719 if (ret == 0)
2720 iwstats.discard.misc += le32_to_cpu(tmp);
2721
2722 len = sizeof(tmp);
2723 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2724 if (ret == 0)
2725 iwstats.discard.misc += le32_to_cpu(tmp);
2726
2727 /* Workaround transfer stalls on poor quality links.
2728 * TODO: find right way to fix these stalls (as stalls do not happen
2729 * with ndiswrapper/windows driver). */
2730 if (iwstats.qual.qual <= 25) {
2731 /* Decrease stats worker interval to catch stalls.
2732 * faster. Faster than 400-500ms causes packet loss,
2733 * Slower doesn't catch stalls fast enough.
2734 */
2735 j = msecs_to_jiffies(priv->param_workaround_interval);
2736 if (j > STATS_UPDATE_JIFFIES)
2737 j = STATS_UPDATE_JIFFIES;
2738 else if (j <= 0)
2739 j = 1;
2740 update_jiffies = j;
2741
2742 /* Send scan OID. Use of both OIDs is required to get device
2743 * working.
2744 */
2745 tmp = cpu_to_le32(1);
2746 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2747 sizeof(tmp));
2748
2749 len = CONTROL_BUFFER_SIZE;
2750 buf = kmalloc(len, GFP_KERNEL);
2751 if (!buf)
2752 goto end;
2753
2754 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2755 kfree(buf);
2756 }
2757 end:
2758 spin_lock_irqsave(&priv->stats_lock, flags);
2759 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2760 spin_unlock_irqrestore(&priv->stats_lock, flags);
2761
2762 if (update_jiffies >= HZ)
2763 update_jiffies = round_jiffies_relative(update_jiffies);
2764 else {
2765 j = round_jiffies_relative(update_jiffies);
2766 if (abs(j - update_jiffies) <= 10)
2767 update_jiffies = j;
2768 }
2769
2770 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2771 }
2772
2773
2774 static int bcm4320a_early_init(struct usbnet *usbdev)
2775 {
2776 /* bcm4320a doesn't handle configuration parameters well. Try
2777 * set any and you get partially zeroed mac and broken device.
2778 */
2779
2780 return 0;
2781 }
2782
2783
2784 static int bcm4320b_early_init(struct usbnet *usbdev)
2785 {
2786 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2787 char buf[8];
2788
2789 /* Early initialization settings, setting these won't have effect
2790 * if called after generic_rndis_bind().
2791 */
2792
2793 priv->param_country[0] = modparam_country[0];
2794 priv->param_country[1] = modparam_country[1];
2795 priv->param_country[2] = 0;
2796 priv->param_frameburst = modparam_frameburst;
2797 priv->param_afterburner = modparam_afterburner;
2798 priv->param_power_save = modparam_power_save;
2799 priv->param_power_output = modparam_power_output;
2800 priv->param_roamtrigger = modparam_roamtrigger;
2801 priv->param_roamdelta = modparam_roamdelta;
2802
2803 priv->param_country[0] = toupper(priv->param_country[0]);
2804 priv->param_country[1] = toupper(priv->param_country[1]);
2805 /* doesn't support EU as country code, use FI instead */
2806 if (!strcmp(priv->param_country, "EU"))
2807 strcpy(priv->param_country, "FI");
2808
2809 if (priv->param_power_save < 0)
2810 priv->param_power_save = 0;
2811 else if (priv->param_power_save > 2)
2812 priv->param_power_save = 2;
2813
2814 if (priv->param_power_output < 0)
2815 priv->param_power_output = 0;
2816 else if (priv->param_power_output > 3)
2817 priv->param_power_output = 3;
2818
2819 if (priv->param_roamtrigger < -80)
2820 priv->param_roamtrigger = -80;
2821 else if (priv->param_roamtrigger > -60)
2822 priv->param_roamtrigger = -60;
2823
2824 if (priv->param_roamdelta < 0)
2825 priv->param_roamdelta = 0;
2826 else if (priv->param_roamdelta > 2)
2827 priv->param_roamdelta = 2;
2828
2829 if (modparam_workaround_interval < 0)
2830 priv->param_workaround_interval = 500;
2831 else
2832 priv->param_workaround_interval = modparam_workaround_interval;
2833
2834 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2835 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2836 priv->param_frameburst ? "1" : "0");
2837 rndis_set_config_parameter_str(usbdev, "Afterburner",
2838 priv->param_afterburner ? "1" : "0");
2839 sprintf(buf, "%d", priv->param_power_save);
2840 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2841 sprintf(buf, "%d", priv->param_power_output);
2842 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2843 sprintf(buf, "%d", priv->param_roamtrigger);
2844 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2845 sprintf(buf, "%d", priv->param_roamdelta);
2846 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2847
2848 return 0;
2849 }
2850
2851 /* same as rndis_netdev_ops but with local multicast handler */
2852 static const struct net_device_ops rndis_wlan_netdev_ops = {
2853 .ndo_open = usbnet_open,
2854 .ndo_stop = usbnet_stop,
2855 .ndo_start_xmit = usbnet_start_xmit,
2856 .ndo_tx_timeout = usbnet_tx_timeout,
2857 .ndo_set_mac_address = eth_mac_addr,
2858 .ndo_validate_addr = eth_validate_addr,
2859 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
2860 };
2861
2862
2863 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
2864 {
2865 struct wiphy *wiphy;
2866 struct rndis_wlan_private *priv;
2867 int retval, len;
2868 __le32 tmp;
2869
2870 /* allocate wiphy and rndis private data
2871 * NOTE: We only support a single virtual interface, so wiphy
2872 * and wireless_dev are somewhat synonymous for this device.
2873 */
2874 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
2875 if (!wiphy)
2876 return -ENOMEM;
2877
2878 priv = wiphy_priv(wiphy);
2879 usbdev->net->ieee80211_ptr = &priv->wdev;
2880 priv->wdev.wiphy = wiphy;
2881 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2882
2883 /* These have to be initialized before calling generic_rndis_bind().
2884 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
2885 */
2886 usbdev->driver_priv = priv;
2887 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2888 priv->usbdev = usbdev;
2889
2890 mutex_init(&priv->command_lock);
2891 spin_lock_init(&priv->stats_lock);
2892
2893 /* because rndis_command() sleeps we need to use workqueue */
2894 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2895 INIT_WORK(&priv->work, rndis_wlan_worker);
2896 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2897 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2898
2899 /* try bind rndis_host */
2900 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2901 if (retval < 0)
2902 goto fail;
2903
2904 /* generic_rndis_bind set packet filter to multicast_all+
2905 * promisc mode which doesn't work well for our devices (device
2906 * picks up rssi to closest station instead of to access point).
2907 *
2908 * rndis_host wants to avoid all OID as much as possible
2909 * so do promisc/multicast handling in rndis_wlan.
2910 */
2911 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
2912
2913 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2914 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2915 sizeof(tmp));
2916
2917 len = sizeof(tmp);
2918 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2919 &len);
2920 priv->multicast_size = le32_to_cpu(tmp);
2921 if (retval < 0 || priv->multicast_size < 0)
2922 priv->multicast_size = 0;
2923 if (priv->multicast_size > 0)
2924 usbdev->net->flags |= IFF_MULTICAST;
2925 else
2926 usbdev->net->flags &= ~IFF_MULTICAST;
2927
2928 priv->iwstats.qual.qual = 0;
2929 priv->iwstats.qual.level = 0;
2930 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2931 | IW_QUAL_LEVEL_UPDATED
2932 | IW_QUAL_NOISE_INVALID
2933 | IW_QUAL_QUAL_INVALID
2934 | IW_QUAL_LEVEL_INVALID;
2935
2936 /* fill-out wiphy structure and register w/ cfg80211 */
2937 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2938 wiphy->privid = rndis_wiphy_privid;
2939 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2940 | BIT(NL80211_IFTYPE_ADHOC);
2941 wiphy->max_scan_ssids = 1;
2942
2943 /* TODO: fill-out band/encr information based on priv->caps */
2944 rndis_wlan_get_caps(usbdev);
2945
2946 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2947 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2948 priv->band.channels = priv->channels;
2949 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2950 priv->band.bitrates = priv->rates;
2951 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2952 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2953 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2954
2955 memcpy(priv->cipher_suites, rndis_cipher_suites,
2956 sizeof(rndis_cipher_suites));
2957 wiphy->cipher_suites = priv->cipher_suites;
2958 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
2959
2960 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2961
2962 if (wiphy_register(wiphy)) {
2963 retval = -ENODEV;
2964 goto fail;
2965 }
2966
2967 set_default_iw_params(usbdev);
2968
2969 /* set default rts/frag */
2970 rndis_set_wiphy_params(wiphy,
2971 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
2972
2973 /* turn radio on */
2974 priv->radio_on = 1;
2975 disassociate(usbdev, 1);
2976 netif_carrier_off(usbdev->net);
2977
2978 return 0;
2979
2980 fail:
2981 cancel_delayed_work_sync(&priv->stats_work);
2982 cancel_delayed_work_sync(&priv->scan_work);
2983 cancel_work_sync(&priv->work);
2984 flush_workqueue(priv->workqueue);
2985 destroy_workqueue(priv->workqueue);
2986
2987 wiphy_free(wiphy);
2988 return retval;
2989 }
2990
2991
2992 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2993 {
2994 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2995
2996 /* turn radio off */
2997 disassociate(usbdev, 0);
2998
2999 cancel_delayed_work_sync(&priv->stats_work);
3000 cancel_delayed_work_sync(&priv->scan_work);
3001 cancel_work_sync(&priv->work);
3002 flush_workqueue(priv->workqueue);
3003 destroy_workqueue(priv->workqueue);
3004
3005 if (priv && priv->wpa_ie_len)
3006 kfree(priv->wpa_ie);
3007
3008 rndis_unbind(usbdev, intf);
3009
3010 wiphy_unregister(priv->wdev.wiphy);
3011 wiphy_free(priv->wdev.wiphy);
3012 }
3013
3014
3015 static int rndis_wlan_reset(struct usbnet *usbdev)
3016 {
3017 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3018 int retval;
3019
3020 devdbg(usbdev, "rndis_wlan_reset");
3021
3022 retval = rndis_reset(usbdev);
3023 if (retval)
3024 devwarn(usbdev, "rndis_reset() failed: %d", retval);
3025
3026 /* rndis_reset cleared multicast list, so restore here.
3027 (set_multicast_list() also turns on current packet filter) */
3028 set_multicast_list(usbdev);
3029
3030 queue_delayed_work(priv->workqueue, &priv->stats_work,
3031 round_jiffies_relative(STATS_UPDATE_JIFFIES));
3032
3033 return deauthenticate(usbdev);
3034 }
3035
3036
3037 static int rndis_wlan_stop(struct usbnet *usbdev)
3038 {
3039 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3040 int retval;
3041 __le32 filter;
3042
3043 devdbg(usbdev, "rndis_wlan_stop");
3044
3045 retval = disassociate(usbdev, 0);
3046
3047 priv->work_pending = 0;
3048 cancel_delayed_work_sync(&priv->stats_work);
3049 cancel_delayed_work_sync(&priv->scan_work);
3050 cancel_work_sync(&priv->work);
3051 flush_workqueue(priv->workqueue);
3052
3053 if (priv->scan_request) {
3054 cfg80211_scan_done(priv->scan_request, true);
3055 priv->scan_request = NULL;
3056 }
3057
3058 /* Set current packet filter zero to block receiving data packets from
3059 device. */
3060 filter = 0;
3061 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3062 sizeof(filter));
3063
3064 return retval;
3065 }
3066
3067
3068 static const struct driver_info bcm4320b_info = {
3069 .description = "Wireless RNDIS device, BCM4320b based",
3070 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3071 FLAG_AVOID_UNLINK_URBS,
3072 .bind = rndis_wlan_bind,
3073 .unbind = rndis_wlan_unbind,
3074 .status = rndis_status,
3075 .rx_fixup = rndis_rx_fixup,
3076 .tx_fixup = rndis_tx_fixup,
3077 .reset = rndis_wlan_reset,
3078 .stop = rndis_wlan_stop,
3079 .early_init = bcm4320b_early_init,
3080 .indication = rndis_wlan_indication,
3081 };
3082
3083 static const struct driver_info bcm4320a_info = {
3084 .description = "Wireless RNDIS device, BCM4320a based",
3085 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3086 FLAG_AVOID_UNLINK_URBS,
3087 .bind = rndis_wlan_bind,
3088 .unbind = rndis_wlan_unbind,
3089 .status = rndis_status,
3090 .rx_fixup = rndis_rx_fixup,
3091 .tx_fixup = rndis_tx_fixup,
3092 .reset = rndis_wlan_reset,
3093 .stop = rndis_wlan_stop,
3094 .early_init = bcm4320a_early_init,
3095 .indication = rndis_wlan_indication,
3096 };
3097
3098 static const struct driver_info rndis_wlan_info = {
3099 .description = "Wireless RNDIS device",
3100 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3101 FLAG_AVOID_UNLINK_URBS,
3102 .bind = rndis_wlan_bind,
3103 .unbind = rndis_wlan_unbind,
3104 .status = rndis_status,
3105 .rx_fixup = rndis_rx_fixup,
3106 .tx_fixup = rndis_tx_fixup,
3107 .reset = rndis_wlan_reset,
3108 .stop = rndis_wlan_stop,
3109 .early_init = bcm4320a_early_init,
3110 .indication = rndis_wlan_indication,
3111 };
3112
3113 /*-------------------------------------------------------------------------*/
3114
3115 static const struct usb_device_id products [] = {
3116 #define RNDIS_MASTER_INTERFACE \
3117 .bInterfaceClass = USB_CLASS_COMM, \
3118 .bInterfaceSubClass = 2 /* ACM */, \
3119 .bInterfaceProtocol = 0x0ff
3120
3121 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3122 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3123 */
3124 {
3125 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3126 | USB_DEVICE_ID_MATCH_DEVICE,
3127 .idVendor = 0x0411,
3128 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3129 RNDIS_MASTER_INTERFACE,
3130 .driver_info = (unsigned long) &bcm4320b_info,
3131 }, {
3132 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3133 | USB_DEVICE_ID_MATCH_DEVICE,
3134 .idVendor = 0x0baf,
3135 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3136 RNDIS_MASTER_INTERFACE,
3137 .driver_info = (unsigned long) &bcm4320b_info,
3138 }, {
3139 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3140 | USB_DEVICE_ID_MATCH_DEVICE,
3141 .idVendor = 0x050d,
3142 .idProduct = 0x011b, /* Belkin F5D7051 */
3143 RNDIS_MASTER_INTERFACE,
3144 .driver_info = (unsigned long) &bcm4320b_info,
3145 }, {
3146 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3147 | USB_DEVICE_ID_MATCH_DEVICE,
3148 .idVendor = 0x1799, /* Belkin has two vendor ids */
3149 .idProduct = 0x011b, /* Belkin F5D7051 */
3150 RNDIS_MASTER_INTERFACE,
3151 .driver_info = (unsigned long) &bcm4320b_info,
3152 }, {
3153 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3154 | USB_DEVICE_ID_MATCH_DEVICE,
3155 .idVendor = 0x13b1,
3156 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3157 RNDIS_MASTER_INTERFACE,
3158 .driver_info = (unsigned long) &bcm4320b_info,
3159 }, {
3160 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3161 | USB_DEVICE_ID_MATCH_DEVICE,
3162 .idVendor = 0x13b1,
3163 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3164 RNDIS_MASTER_INTERFACE,
3165 .driver_info = (unsigned long) &bcm4320b_info,
3166 }, {
3167 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3168 | USB_DEVICE_ID_MATCH_DEVICE,
3169 .idVendor = 0x0b05,
3170 .idProduct = 0x1717, /* Asus WL169gE */
3171 RNDIS_MASTER_INTERFACE,
3172 .driver_info = (unsigned long) &bcm4320b_info,
3173 }, {
3174 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3175 | USB_DEVICE_ID_MATCH_DEVICE,
3176 .idVendor = 0x0a5c,
3177 .idProduct = 0xd11b, /* Eminent EM4045 */
3178 RNDIS_MASTER_INTERFACE,
3179 .driver_info = (unsigned long) &bcm4320b_info,
3180 }, {
3181 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3182 | USB_DEVICE_ID_MATCH_DEVICE,
3183 .idVendor = 0x1690,
3184 .idProduct = 0x0715, /* BT Voyager 1055 */
3185 RNDIS_MASTER_INTERFACE,
3186 .driver_info = (unsigned long) &bcm4320b_info,
3187 },
3188 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3189 * parameters available, hardware probably contain older firmware version with
3190 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3191 */
3192 {
3193 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3194 | USB_DEVICE_ID_MATCH_DEVICE,
3195 .idVendor = 0x13b1,
3196 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3197 RNDIS_MASTER_INTERFACE,
3198 .driver_info = (unsigned long) &bcm4320a_info,
3199 }, {
3200 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3201 | USB_DEVICE_ID_MATCH_DEVICE,
3202 .idVendor = 0x0baf,
3203 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3204 RNDIS_MASTER_INTERFACE,
3205 .driver_info = (unsigned long) &bcm4320a_info,
3206 }, {
3207 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3208 | USB_DEVICE_ID_MATCH_DEVICE,
3209 .idVendor = 0x0411,
3210 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3211 RNDIS_MASTER_INTERFACE,
3212 .driver_info = (unsigned long) &bcm4320a_info,
3213 },
3214 /* Generic Wireless RNDIS devices that we don't have exact
3215 * idVendor/idProduct/chip yet.
3216 */
3217 {
3218 /* RNDIS is MSFT's un-official variant of CDC ACM */
3219 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3220 .driver_info = (unsigned long) &rndis_wlan_info,
3221 }, {
3222 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3223 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3224 .driver_info = (unsigned long) &rndis_wlan_info,
3225 },
3226 { }, // END
3227 };
3228 MODULE_DEVICE_TABLE(usb, products);
3229
3230 static struct usb_driver rndis_wlan_driver = {
3231 .name = "rndis_wlan",
3232 .id_table = products,
3233 .probe = usbnet_probe,
3234 .disconnect = usbnet_disconnect,
3235 .suspend = usbnet_suspend,
3236 .resume = usbnet_resume,
3237 };
3238
3239 static int __init rndis_wlan_init(void)
3240 {
3241 return usb_register(&rndis_wlan_driver);
3242 }
3243 module_init(rndis_wlan_init);
3244
3245 static void __exit rndis_wlan_exit(void)
3246 {
3247 usb_deregister(&rndis_wlan_driver);
3248 }
3249 module_exit(rndis_wlan_exit);
3250
3251 MODULE_AUTHOR("Bjorge Dijkstra");
3252 MODULE_AUTHOR("Jussi Kivilinna");
3253 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3254 MODULE_LICENSE("GPL");
3255
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree