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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Driver for RNDIS based wireless USB devices.
4 *
5 * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
6 * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@iki.fi>
7 *
8 * Portions of this file are based on NDISwrapper project,
9 * Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
10 * http://ndiswrapper.sourceforge.net/
11 */
12
13// #define DEBUG // error path messages, extra info
14// #define VERBOSE // more; success messages
15
16#include <linux/module.h>
17#include <linux/netdevice.h>
18#include <linux/etherdevice.h>
19#include <linux/ethtool.h>
20#include <linux/workqueue.h>
21#include <linux/mutex.h>
22#include <linux/mii.h>
23#include <linux/usb.h>
24#include <linux/usb/cdc.h>
25#include <linux/ieee80211.h>
26#include <linux/if_arp.h>
27#include <linux/ctype.h>
28#include <linux/spinlock.h>
29#include <linux/slab.h>
30#include <net/cfg80211.h>
31#include <linux/usb/usbnet.h>
32#include <linux/usb/rndis_host.h>
33
34
35/* NOTE: All these are settings for Broadcom chipset */
36static char modparam_country[4] = "EU";
37module_param_string(country, modparam_country, 4, 0444);
38MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
39
40static int modparam_frameburst = 1;
41module_param_named(frameburst, modparam_frameburst, int, 0444);
42MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
43
44static int modparam_afterburner = 0;
45module_param_named(afterburner, modparam_afterburner, int, 0444);
46MODULE_PARM_DESC(afterburner,
47 "enable afterburner aka '125 High Speed Mode' (default: off)");
48
49static int modparam_power_save = 0;
50module_param_named(power_save, modparam_power_save, int, 0444);
51MODULE_PARM_DESC(power_save,
52 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
53
54static int modparam_power_output = 3;
55module_param_named(power_output, modparam_power_output, int, 0444);
56MODULE_PARM_DESC(power_output,
57 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
58
59static int modparam_roamtrigger = -70;
60module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
61MODULE_PARM_DESC(roamtrigger,
62 "set roaming dBm trigger: -80=optimize for distance, "
63 "-60=bandwidth (default: -70)");
64
65static int modparam_roamdelta = 1;
66module_param_named(roamdelta, modparam_roamdelta, int, 0444);
67MODULE_PARM_DESC(roamdelta,
68 "set roaming tendency: 0=aggressive, 1=moderate, "
69 "2=conservative (default: moderate)");
70
71static int modparam_workaround_interval;
72module_param_named(workaround_interval, modparam_workaround_interval,
73 int, 0444);
74MODULE_PARM_DESC(workaround_interval,
75 "set stall workaround interval in msecs (0=disabled) (default: 0)");
76
77/* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
78#define WL_NOISE -96 /* typical noise level in dBm */
79#define WL_SIGMAX -32 /* typical maximum signal level in dBm */
80
81
82/* Assume that Broadcom 4320 (only chipset at time of writing known to be
83 * based on wireless rndis) has default txpower of 13dBm.
84 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
85 * 100% : 20 mW ~ 13dBm
86 * 75% : 15 mW ~ 12dBm
87 * 50% : 10 mW ~ 10dBm
88 * 25% : 5 mW ~ 7dBm
89 */
90#define BCM4320_DEFAULT_TXPOWER_DBM_100 13
91#define BCM4320_DEFAULT_TXPOWER_DBM_75 12
92#define BCM4320_DEFAULT_TXPOWER_DBM_50 10
93#define BCM4320_DEFAULT_TXPOWER_DBM_25 7
94
95/* Known device types */
96#define RNDIS_UNKNOWN 0
97#define RNDIS_BCM4320A 1
98#define RNDIS_BCM4320B 2
99
100
101/* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
102 * slightly modified for datatype endianess, etc
103 */
104#define NDIS_802_11_LENGTH_SSID 32
105#define NDIS_802_11_LENGTH_RATES 8
106#define NDIS_802_11_LENGTH_RATES_EX 16
107
108enum ndis_80211_net_type {
109 NDIS_80211_TYPE_FREQ_HOP,
110 NDIS_80211_TYPE_DIRECT_SEQ,
111 NDIS_80211_TYPE_OFDM_A,
112 NDIS_80211_TYPE_OFDM_G
113};
114
115enum ndis_80211_net_infra {
116 NDIS_80211_INFRA_ADHOC,
117 NDIS_80211_INFRA_INFRA,
118 NDIS_80211_INFRA_AUTO_UNKNOWN
119};
120
121enum ndis_80211_auth_mode {
122 NDIS_80211_AUTH_OPEN,
123 NDIS_80211_AUTH_SHARED,
124 NDIS_80211_AUTH_AUTO_SWITCH,
125 NDIS_80211_AUTH_WPA,
126 NDIS_80211_AUTH_WPA_PSK,
127 NDIS_80211_AUTH_WPA_NONE,
128 NDIS_80211_AUTH_WPA2,
129 NDIS_80211_AUTH_WPA2_PSK
130};
131
132enum ndis_80211_encr_status {
133 NDIS_80211_ENCR_WEP_ENABLED,
134 NDIS_80211_ENCR_DISABLED,
135 NDIS_80211_ENCR_WEP_KEY_ABSENT,
136 NDIS_80211_ENCR_NOT_SUPPORTED,
137 NDIS_80211_ENCR_TKIP_ENABLED,
138 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
139 NDIS_80211_ENCR_CCMP_ENABLED,
140 NDIS_80211_ENCR_CCMP_KEY_ABSENT
141};
142
143enum ndis_80211_priv_filter {
144 NDIS_80211_PRIV_ACCEPT_ALL,
145 NDIS_80211_PRIV_8021X_WEP
146};
147
148enum ndis_80211_status_type {
149 NDIS_80211_STATUSTYPE_AUTHENTICATION,
150 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
151 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
152 NDIS_80211_STATUSTYPE_RADIOSTATE,
153};
154
155enum ndis_80211_media_stream_mode {
156 NDIS_80211_MEDIA_STREAM_OFF,
157 NDIS_80211_MEDIA_STREAM_ON
158};
159
160enum ndis_80211_radio_status {
161 NDIS_80211_RADIO_STATUS_ON,
162 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
163 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
164};
165
166enum ndis_80211_addkey_bits {
167 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
168 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
169 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
170 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
171};
172
173enum ndis_80211_addwep_bits {
174 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
175 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
176};
177
178enum ndis_80211_power_mode {
179 NDIS_80211_POWER_MODE_CAM,
180 NDIS_80211_POWER_MODE_MAX_PSP,
181 NDIS_80211_POWER_MODE_FAST_PSP,
182};
183
184enum ndis_80211_pmkid_cand_list_flag_bits {
185 NDIS_80211_PMKID_CAND_PREAUTH = cpu_to_le32(1 << 0)
186};
187
188struct ndis_80211_auth_request {
189 __le32 length;
190 u8 bssid[ETH_ALEN];
191 u8 padding[2];
192 __le32 flags;
193} __packed;
194
195struct ndis_80211_pmkid_candidate {
196 u8 bssid[ETH_ALEN];
197 u8 padding[2];
198 __le32 flags;
199} __packed;
200
201struct ndis_80211_pmkid_cand_list {
202 __le32 version;
203 __le32 num_candidates;
204 struct ndis_80211_pmkid_candidate candidate_list[];
205} __packed;
206
207struct ndis_80211_status_indication {
208 __le32 status_type;
209 union {
210 __le32 media_stream_mode;
211 __le32 radio_status;
212 struct ndis_80211_auth_request auth_request[0];
213 struct ndis_80211_pmkid_cand_list cand_list;
214 } u;
215} __packed;
216
217struct ndis_80211_ssid {
218 __le32 length;
219 u8 essid[NDIS_802_11_LENGTH_SSID];
220} __packed;
221
222struct ndis_80211_conf_freq_hop {
223 __le32 length;
224 __le32 hop_pattern;
225 __le32 hop_set;
226 __le32 dwell_time;
227} __packed;
228
229struct ndis_80211_conf {
230 __le32 length;
231 __le32 beacon_period;
232 __le32 atim_window;
233 __le32 ds_config;
234 struct ndis_80211_conf_freq_hop fh_config;
235} __packed;
236
237struct ndis_80211_bssid_ex {
238 __le32 length;
239 u8 mac[ETH_ALEN];
240 u8 padding[2];
241 struct ndis_80211_ssid ssid;
242 __le32 privacy;
243 __le32 rssi;
244 __le32 net_type;
245 struct ndis_80211_conf config;
246 __le32 net_infra;
247 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
248 __le32 ie_length;
249 u8 ies[];
250} __packed;
251
252struct ndis_80211_bssid_list_ex {
253 __le32 num_items;
254 u8 bssid_data[];
255} __packed;
256
257struct ndis_80211_fixed_ies {
258 u8 timestamp[8];
259 __le16 beacon_interval;
260 __le16 capabilities;
261} __packed;
262
263struct ndis_80211_wep_key {
264 __le32 size;
265 __le32 index;
266 __le32 length;
267 u8 material[32];
268} __packed;
269
270struct ndis_80211_key {
271 __le32 size;
272 __le32 index;
273 __le32 length;
274 u8 bssid[ETH_ALEN];
275 u8 padding[6];
276 u8 rsc[8];
277 u8 material[32];
278} __packed;
279
280struct ndis_80211_remove_key {
281 __le32 size;
282 __le32 index;
283 u8 bssid[ETH_ALEN];
284 u8 padding[2];
285} __packed;
286
287struct ndis_config_param {
288 __le32 name_offs;
289 __le32 name_length;
290 __le32 type;
291 __le32 value_offs;
292 __le32 value_length;
293} __packed;
294
295struct ndis_80211_assoc_info {
296 __le32 length;
297 __le16 req_ies;
298 struct req_ie {
299 __le16 capa;
300 __le16 listen_interval;
301 u8 cur_ap_address[ETH_ALEN];
302 } req_ie;
303 __le32 req_ie_length;
304 __le32 offset_req_ies;
305 __le16 resp_ies;
306 struct resp_ie {
307 __le16 capa;
308 __le16 status_code;
309 __le16 assoc_id;
310 } resp_ie;
311 __le32 resp_ie_length;
312 __le32 offset_resp_ies;
313} __packed;
314
315struct ndis_80211_capability {
316 __le32 length;
317 __le32 version;
318 __le32 num_pmkids;
319 __le32 num_auth_encr_pair;
320} __packed;
321
322struct ndis_80211_bssid_info {
323 u8 bssid[ETH_ALEN];
324 u8 pmkid[16];
325} __packed;
326
327struct ndis_80211_pmkid {
328 __le32 length;
329 __le32 bssid_info_count;
330 struct ndis_80211_bssid_info bssid_info[];
331} __packed;
332
333/*
334 * private data
335 */
336#define CAP_MODE_80211A 1
337#define CAP_MODE_80211B 2
338#define CAP_MODE_80211G 4
339#define CAP_MODE_MASK 7
340
341#define WORK_LINK_UP 0
342#define WORK_LINK_DOWN 1
343#define WORK_SET_MULTICAST_LIST 2
344
345#define RNDIS_WLAN_ALG_NONE 0
346#define RNDIS_WLAN_ALG_WEP (1<<0)
347#define RNDIS_WLAN_ALG_TKIP (1<<1)
348#define RNDIS_WLAN_ALG_CCMP (1<<2)
349
350#define RNDIS_WLAN_NUM_KEYS 4
351#define RNDIS_WLAN_KEY_MGMT_NONE 0
352#define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
353#define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
354
355#define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
356
357static const struct ieee80211_channel rndis_channels[] = {
358 { .center_freq = 2412 },
359 { .center_freq = 2417 },
360 { .center_freq = 2422 },
361 { .center_freq = 2427 },
362 { .center_freq = 2432 },
363 { .center_freq = 2437 },
364 { .center_freq = 2442 },
365 { .center_freq = 2447 },
366 { .center_freq = 2452 },
367 { .center_freq = 2457 },
368 { .center_freq = 2462 },
369 { .center_freq = 2467 },
370 { .center_freq = 2472 },
371 { .center_freq = 2484 },
372};
373
374static const struct ieee80211_rate rndis_rates[] = {
375 { .bitrate = 10 },
376 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
377 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
378 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
379 { .bitrate = 60 },
380 { .bitrate = 90 },
381 { .bitrate = 120 },
382 { .bitrate = 180 },
383 { .bitrate = 240 },
384 { .bitrate = 360 },
385 { .bitrate = 480 },
386 { .bitrate = 540 }
387};
388
389static const u32 rndis_cipher_suites[] = {
390 WLAN_CIPHER_SUITE_WEP40,
391 WLAN_CIPHER_SUITE_WEP104,
392 WLAN_CIPHER_SUITE_TKIP,
393 WLAN_CIPHER_SUITE_CCMP,
394};
395
396struct rndis_wlan_encr_key {
397 int len;
398 u32 cipher;
399 u8 material[32];
400 u8 bssid[ETH_ALEN];
401 bool pairwise;
402 bool tx_key;
403};
404
405/* RNDIS device private data */
406struct rndis_wlan_private {
407 struct usbnet *usbdev;
408
409 struct wireless_dev wdev;
410
411 struct cfg80211_scan_request *scan_request;
412
413 struct workqueue_struct *workqueue;
414 struct delayed_work dev_poller_work;
415 struct delayed_work scan_work;
416 struct work_struct work;
417 struct mutex command_lock;
418 unsigned long work_pending;
419 int last_qual;
420 s32 cqm_rssi_thold;
421 u32 cqm_rssi_hyst;
422 int last_cqm_event_rssi;
423
424 struct ieee80211_supported_band band;
425 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
426 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
427 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
428
429 int device_type;
430 int caps;
431 int multicast_size;
432
433 /* module parameters */
434 char param_country[4];
435 int param_frameburst;
436 int param_afterburner;
437 int param_power_save;
438 int param_power_output;
439 int param_roamtrigger;
440 int param_roamdelta;
441 u32 param_workaround_interval;
442
443 /* hardware state */
444 bool radio_on;
445 int power_mode;
446 int infra_mode;
447 bool connected;
448 u8 bssid[ETH_ALEN];
449 u32 current_command_oid;
450
451 /* encryption stuff */
452 u8 encr_tx_key_index;
453 struct rndis_wlan_encr_key encr_keys[RNDIS_WLAN_NUM_KEYS];
454 int wpa_version;
455
456 u8 command_buffer[COMMAND_BUFFER_SIZE];
457};
458
459/*
460 * cfg80211 ops
461 */
462static int rndis_change_virtual_intf(struct wiphy *wiphy,
463 struct net_device *dev,
464 enum nl80211_iftype type,
465 struct vif_params *params);
466
467static int rndis_scan(struct wiphy *wiphy,
468 struct cfg80211_scan_request *request);
469
470static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
471
472static int rndis_set_tx_power(struct wiphy *wiphy,
473 struct wireless_dev *wdev,
474 enum nl80211_tx_power_setting type,
475 int mbm);
476static int rndis_get_tx_power(struct wiphy *wiphy,
477 struct wireless_dev *wdev,
478 int *dbm);
479
480static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
481 struct cfg80211_connect_params *sme);
482
483static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
484 u16 reason_code);
485
486static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
487 struct cfg80211_ibss_params *params);
488
489static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
490
491static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
492 int link_id, u8 key_index, bool pairwise,
493 const u8 *mac_addr, struct key_params *params);
494
495static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
496 int link_id, u8 key_index, bool pairwise,
497 const u8 *mac_addr);
498
499static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
500 int link_id, u8 key_index, bool unicast,
501 bool multicast);
502
503static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
504 const u8 *mac, struct station_info *sinfo);
505
506static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
507 int idx, u8 *mac, struct station_info *sinfo);
508
509static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
510 struct cfg80211_pmksa *pmksa);
511
512static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
513 struct cfg80211_pmksa *pmksa);
514
515static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
516
517static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
518 bool enabled, int timeout);
519
520static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
521 struct net_device *dev,
522 s32 rssi_thold, u32 rssi_hyst);
523
524static const struct cfg80211_ops rndis_config_ops = {
525 .change_virtual_intf = rndis_change_virtual_intf,
526 .scan = rndis_scan,
527 .set_wiphy_params = rndis_set_wiphy_params,
528 .set_tx_power = rndis_set_tx_power,
529 .get_tx_power = rndis_get_tx_power,
530 .connect = rndis_connect,
531 .disconnect = rndis_disconnect,
532 .join_ibss = rndis_join_ibss,
533 .leave_ibss = rndis_leave_ibss,
534 .add_key = rndis_add_key,
535 .del_key = rndis_del_key,
536 .set_default_key = rndis_set_default_key,
537 .get_station = rndis_get_station,
538 .dump_station = rndis_dump_station,
539 .set_pmksa = rndis_set_pmksa,
540 .del_pmksa = rndis_del_pmksa,
541 .flush_pmksa = rndis_flush_pmksa,
542 .set_power_mgmt = rndis_set_power_mgmt,
543 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
544};
545
546static void *rndis_wiphy_privid = &rndis_wiphy_privid;
547
548
549static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
550{
551 return (struct rndis_wlan_private *)dev->driver_priv;
552}
553
554static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
555{
556 switch (priv->param_power_output) {
557 default:
558 case 3:
559 return BCM4320_DEFAULT_TXPOWER_DBM_100;
560 case 2:
561 return BCM4320_DEFAULT_TXPOWER_DBM_75;
562 case 1:
563 return BCM4320_DEFAULT_TXPOWER_DBM_50;
564 case 0:
565 return BCM4320_DEFAULT_TXPOWER_DBM_25;
566 }
567}
568
569static bool is_wpa_key(struct rndis_wlan_private *priv, u8 idx)
570{
571 int cipher = priv->encr_keys[idx].cipher;
572
573 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
574 cipher == WLAN_CIPHER_SUITE_TKIP);
575}
576
577static int rndis_cipher_to_alg(u32 cipher)
578{
579 switch (cipher) {
580 default:
581 return RNDIS_WLAN_ALG_NONE;
582 case WLAN_CIPHER_SUITE_WEP40:
583 case WLAN_CIPHER_SUITE_WEP104:
584 return RNDIS_WLAN_ALG_WEP;
585 case WLAN_CIPHER_SUITE_TKIP:
586 return RNDIS_WLAN_ALG_TKIP;
587 case WLAN_CIPHER_SUITE_CCMP:
588 return RNDIS_WLAN_ALG_CCMP;
589 }
590}
591
592static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
593{
594 switch (akm_suite) {
595 default:
596 return RNDIS_WLAN_KEY_MGMT_NONE;
597 case WLAN_AKM_SUITE_8021X:
598 return RNDIS_WLAN_KEY_MGMT_802_1X;
599 case WLAN_AKM_SUITE_PSK:
600 return RNDIS_WLAN_KEY_MGMT_PSK;
601 }
602}
603
604#ifdef DEBUG
605static const char *oid_to_string(u32 oid)
606{
607 switch (oid) {
608#define OID_STR(oid) case oid: return(#oid)
609 /* from rndis_host.h */
610 OID_STR(RNDIS_OID_802_3_PERMANENT_ADDRESS);
611 OID_STR(RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE);
612 OID_STR(RNDIS_OID_GEN_CURRENT_PACKET_FILTER);
613 OID_STR(RNDIS_OID_GEN_PHYSICAL_MEDIUM);
614
615 /* from rndis_wlan.c */
616 OID_STR(RNDIS_OID_GEN_LINK_SPEED);
617 OID_STR(RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER);
618
619 OID_STR(RNDIS_OID_GEN_XMIT_OK);
620 OID_STR(RNDIS_OID_GEN_RCV_OK);
621 OID_STR(RNDIS_OID_GEN_XMIT_ERROR);
622 OID_STR(RNDIS_OID_GEN_RCV_ERROR);
623 OID_STR(RNDIS_OID_GEN_RCV_NO_BUFFER);
624
625 OID_STR(RNDIS_OID_802_3_CURRENT_ADDRESS);
626 OID_STR(RNDIS_OID_802_3_MULTICAST_LIST);
627 OID_STR(RNDIS_OID_802_3_MAXIMUM_LIST_SIZE);
628
629 OID_STR(RNDIS_OID_802_11_BSSID);
630 OID_STR(RNDIS_OID_802_11_SSID);
631 OID_STR(RNDIS_OID_802_11_INFRASTRUCTURE_MODE);
632 OID_STR(RNDIS_OID_802_11_ADD_WEP);
633 OID_STR(RNDIS_OID_802_11_REMOVE_WEP);
634 OID_STR(RNDIS_OID_802_11_DISASSOCIATE);
635 OID_STR(RNDIS_OID_802_11_AUTHENTICATION_MODE);
636 OID_STR(RNDIS_OID_802_11_PRIVACY_FILTER);
637 OID_STR(RNDIS_OID_802_11_BSSID_LIST_SCAN);
638 OID_STR(RNDIS_OID_802_11_ENCRYPTION_STATUS);
639 OID_STR(RNDIS_OID_802_11_ADD_KEY);
640 OID_STR(RNDIS_OID_802_11_REMOVE_KEY);
641 OID_STR(RNDIS_OID_802_11_ASSOCIATION_INFORMATION);
642 OID_STR(RNDIS_OID_802_11_CAPABILITY);
643 OID_STR(RNDIS_OID_802_11_PMKID);
644 OID_STR(RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED);
645 OID_STR(RNDIS_OID_802_11_NETWORK_TYPE_IN_USE);
646 OID_STR(RNDIS_OID_802_11_TX_POWER_LEVEL);
647 OID_STR(RNDIS_OID_802_11_RSSI);
648 OID_STR(RNDIS_OID_802_11_RSSI_TRIGGER);
649 OID_STR(RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD);
650 OID_STR(RNDIS_OID_802_11_RTS_THRESHOLD);
651 OID_STR(RNDIS_OID_802_11_SUPPORTED_RATES);
652 OID_STR(RNDIS_OID_802_11_CONFIGURATION);
653 OID_STR(RNDIS_OID_802_11_POWER_MODE);
654 OID_STR(RNDIS_OID_802_11_BSSID_LIST);
655#undef OID_STR
656 }
657
658 return "?";
659}
660#else
661static const char *oid_to_string(u32 oid)
662{
663 return "?";
664}
665#endif
666
667/* translate error code */
668static int rndis_error_status(__le32 rndis_status)
669{
670 int ret = -EINVAL;
671 switch (le32_to_cpu(rndis_status)) {
672 case RNDIS_STATUS_SUCCESS:
673 ret = 0;
674 break;
675 case RNDIS_STATUS_FAILURE:
676 case RNDIS_STATUS_INVALID_DATA:
677 ret = -EINVAL;
678 break;
679 case RNDIS_STATUS_NOT_SUPPORTED:
680 ret = -EOPNOTSUPP;
681 break;
682 case RNDIS_STATUS_ADAPTER_NOT_READY:
683 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
684 ret = -EBUSY;
685 break;
686 }
687 return ret;
688}
689
690static int rndis_query_oid(struct usbnet *dev, u32 oid, void *data, int *len)
691{
692 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
693 union {
694 void *buf;
695 struct rndis_msg_hdr *header;
696 struct rndis_query *get;
697 struct rndis_query_c *get_c;
698 } u;
699 int ret;
700 size_t buflen, resplen, respoffs, copylen;
701
702 buflen = *len + sizeof(*u.get);
703 if (buflen < CONTROL_BUFFER_SIZE)
704 buflen = CONTROL_BUFFER_SIZE;
705
706 if (buflen > COMMAND_BUFFER_SIZE) {
707 u.buf = kmalloc(buflen, GFP_KERNEL);
708 if (!u.buf)
709 return -ENOMEM;
710 } else {
711 u.buf = priv->command_buffer;
712 }
713
714 mutex_lock(&priv->command_lock);
715
716 memset(u.get, 0, sizeof *u.get);
717 u.get->msg_type = cpu_to_le32(RNDIS_MSG_QUERY);
718 u.get->msg_len = cpu_to_le32(sizeof *u.get);
719 u.get->oid = cpu_to_le32(oid);
720
721 priv->current_command_oid = oid;
722 ret = rndis_command(dev, u.header, buflen);
723 priv->current_command_oid = 0;
724 if (ret < 0)
725 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
726 __func__, oid_to_string(oid), ret,
727 le32_to_cpu(u.get_c->status));
728
729 if (ret == 0) {
730 resplen = le32_to_cpu(u.get_c->len);
731 respoffs = le32_to_cpu(u.get_c->offset) + 8;
732
733 if (respoffs > buflen) {
734 /* Device returned data offset outside buffer, error. */
735 netdev_dbg(dev->net,
736 "%s(%s): received invalid data offset: %zu > %zu\n",
737 __func__, oid_to_string(oid), respoffs, buflen);
738
739 ret = -EINVAL;
740 goto exit_unlock;
741 }
742
743 copylen = min(resplen, buflen - respoffs);
744
745 if (copylen > *len)
746 copylen = *len;
747
748 memcpy(data, u.buf + respoffs, copylen);
749
750 *len = resplen;
751
752 ret = rndis_error_status(u.get_c->status);
753 if (ret < 0)
754 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
755 __func__, oid_to_string(oid),
756 le32_to_cpu(u.get_c->status), ret);
757 }
758
759exit_unlock:
760 mutex_unlock(&priv->command_lock);
761
762 if (u.buf != priv->command_buffer)
763 kfree(u.buf);
764 return ret;
765}
766
767static int rndis_set_oid(struct usbnet *dev, u32 oid, const void *data,
768 int len)
769{
770 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
771 union {
772 void *buf;
773 struct rndis_msg_hdr *header;
774 struct rndis_set *set;
775 struct rndis_set_c *set_c;
776 } u;
777 int ret, buflen;
778
779 buflen = len + sizeof(*u.set);
780 if (buflen < CONTROL_BUFFER_SIZE)
781 buflen = CONTROL_BUFFER_SIZE;
782
783 if (buflen > COMMAND_BUFFER_SIZE) {
784 u.buf = kmalloc(buflen, GFP_KERNEL);
785 if (!u.buf)
786 return -ENOMEM;
787 } else {
788 u.buf = priv->command_buffer;
789 }
790
791 mutex_lock(&priv->command_lock);
792
793 memset(u.set, 0, sizeof *u.set);
794 u.set->msg_type = cpu_to_le32(RNDIS_MSG_SET);
795 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
796 u.set->oid = cpu_to_le32(oid);
797 u.set->len = cpu_to_le32(len);
798 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
799 u.set->handle = cpu_to_le32(0);
800 memcpy(u.buf + sizeof(*u.set), data, len);
801
802 priv->current_command_oid = oid;
803 ret = rndis_command(dev, u.header, buflen);
804 priv->current_command_oid = 0;
805 if (ret < 0)
806 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
807 __func__, oid_to_string(oid), ret,
808 le32_to_cpu(u.set_c->status));
809
810 if (ret == 0) {
811 ret = rndis_error_status(u.set_c->status);
812
813 if (ret < 0)
814 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
815 __func__, oid_to_string(oid),
816 le32_to_cpu(u.set_c->status), ret);
817 }
818
819 mutex_unlock(&priv->command_lock);
820
821 if (u.buf != priv->command_buffer)
822 kfree(u.buf);
823 return ret;
824}
825
826static int rndis_reset(struct usbnet *usbdev)
827{
828 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
829 struct rndis_reset *reset;
830 int ret;
831
832 mutex_lock(&priv->command_lock);
833
834 reset = (void *)priv->command_buffer;
835 memset(reset, 0, sizeof(*reset));
836 reset->msg_type = cpu_to_le32(RNDIS_MSG_RESET);
837 reset->msg_len = cpu_to_le32(sizeof(*reset));
838 priv->current_command_oid = 0;
839 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
840
841 mutex_unlock(&priv->command_lock);
842
843 if (ret < 0)
844 return ret;
845 return 0;
846}
847
848/*
849 * Specs say that we can only set config parameters only soon after device
850 * initialization.
851 * value_type: 0 = u32, 2 = unicode string
852 */
853static int rndis_set_config_parameter(struct usbnet *dev, char *param,
854 int value_type, void *value)
855{
856 struct ndis_config_param *infobuf;
857 int value_len, info_len, param_len, ret, i;
858 __le16 *unibuf;
859 __le32 *dst_value;
860
861 if (value_type == 0)
862 value_len = sizeof(__le32);
863 else if (value_type == 2)
864 value_len = strlen(value) * sizeof(__le16);
865 else
866 return -EINVAL;
867
868 param_len = strlen(param) * sizeof(__le16);
869 info_len = sizeof(*infobuf) + param_len + value_len;
870
871#ifdef DEBUG
872 info_len += 12;
873#endif
874 infobuf = kmalloc(info_len, GFP_KERNEL);
875 if (!infobuf)
876 return -ENOMEM;
877
878#ifdef DEBUG
879 info_len -= 12;
880 /* extra 12 bytes are for padding (debug output) */
881 memset(infobuf, 0xCC, info_len + 12);
882#endif
883
884 if (value_type == 2)
885 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
886 param, (u8 *)value);
887 else
888 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
889 param, *(u32 *)value);
890
891 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
892 infobuf->name_length = cpu_to_le32(param_len);
893 infobuf->type = cpu_to_le32(value_type);
894 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
895 infobuf->value_length = cpu_to_le32(value_len);
896
897 /* simple string to unicode string conversion */
898 unibuf = (void *)infobuf + sizeof(*infobuf);
899 for (i = 0; i < param_len / sizeof(__le16); i++)
900 unibuf[i] = cpu_to_le16(param[i]);
901
902 if (value_type == 2) {
903 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
904 for (i = 0; i < value_len / sizeof(__le16); i++)
905 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
906 } else {
907 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
908 *dst_value = cpu_to_le32(*(u32 *)value);
909 }
910
911#ifdef DEBUG
912 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
913 for (i = 0; i < info_len; i += 12) {
914 u32 *tmp = (u32 *)((u8 *)infobuf + i);
915 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
916 cpu_to_be32(tmp[0]),
917 cpu_to_be32(tmp[1]),
918 cpu_to_be32(tmp[2]));
919 }
920#endif
921
922 ret = rndis_set_oid(dev, RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER,
923 infobuf, info_len);
924 if (ret != 0)
925 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
926 ret);
927
928 kfree(infobuf);
929 return ret;
930}
931
932static int rndis_set_config_parameter_str(struct usbnet *dev,
933 char *param, char *value)
934{
935 return rndis_set_config_parameter(dev, param, 2, value);
936}
937
938/*
939 * data conversion functions
940 */
941static int level_to_qual(int level)
942{
943 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
944 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
945}
946
947/*
948 * common functions
949 */
950static int set_infra_mode(struct usbnet *usbdev, int mode);
951static void restore_keys(struct usbnet *usbdev);
952static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
953 bool *matched);
954
955static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
956{
957 __le32 tmp;
958
959 /* Note: RNDIS_OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
960 tmp = cpu_to_le32(1);
961 return rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST_SCAN, &tmp,
962 sizeof(tmp));
963}
964
965static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
966{
967 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
968 int ret;
969
970 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_SSID,
971 ssid, sizeof(*ssid));
972 if (ret < 0) {
973 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
974 return ret;
975 }
976 if (ret == 0) {
977 priv->radio_on = true;
978 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
979 }
980
981 return ret;
982}
983
984static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
985{
986 int ret;
987
988 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID,
989 bssid, ETH_ALEN);
990 if (ret < 0) {
991 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
992 bssid, ret);
993 return ret;
994 }
995
996 return ret;
997}
998
999static int clear_bssid(struct usbnet *usbdev)
1000{
1001 static const u8 broadcast_mac[ETH_ALEN] = {
1002 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1003 };
1004
1005 return set_bssid(usbdev, broadcast_mac);
1006}
1007
1008static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1009{
1010 int ret, len;
1011
1012 len = ETH_ALEN;
1013 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID,
1014 bssid, &len);
1015
1016 if (ret != 0)
1017 eth_zero_addr(bssid);
1018
1019 return ret;
1020}
1021
1022static int get_association_info(struct usbnet *usbdev,
1023 struct ndis_80211_assoc_info *info, int len)
1024{
1025 return rndis_query_oid(usbdev,
1026 RNDIS_OID_802_11_ASSOCIATION_INFORMATION,
1027 info, &len);
1028}
1029
1030static bool is_associated(struct usbnet *usbdev)
1031{
1032 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1033 u8 bssid[ETH_ALEN];
1034
1035 if (!priv->radio_on)
1036 return false;
1037
1038 return (get_bssid(usbdev, bssid) == 0 && !is_zero_ether_addr(bssid));
1039}
1040
1041static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1042{
1043 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1044 struct ndis_80211_ssid ssid;
1045 int i, ret = 0;
1046
1047 if (priv->radio_on) {
1048 ret = rndis_set_oid(usbdev,
1049 RNDIS_OID_802_11_DISASSOCIATE,
1050 NULL, 0);
1051 if (ret == 0) {
1052 priv->radio_on = false;
1053 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1054 __func__);
1055
1056 if (reset_ssid)
1057 msleep(100);
1058 }
1059 }
1060
1061 /* disassociate causes radio to be turned off; if reset_ssid
1062 * is given, set random ssid to enable radio */
1063 if (reset_ssid) {
1064 /* Set device to infrastructure mode so we don't get ad-hoc
1065 * 'media connect' indications with the random ssid.
1066 */
1067 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1068
1069 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1070 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1071 ssid.essid[0] = 0x1;
1072 ssid.essid[1] = 0xff;
1073 for (i = 2; i < sizeof(ssid.essid); i++)
1074 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1075 ret = set_essid(usbdev, &ssid);
1076 }
1077 return ret;
1078}
1079
1080static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1081 enum nl80211_auth_type auth_type, int keymgmt)
1082{
1083 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1084 __le32 tmp;
1085 int auth_mode, ret;
1086
1087 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1088 __func__, wpa_version, auth_type, keymgmt);
1089
1090 if (wpa_version & NL80211_WPA_VERSION_2) {
1091 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1092 auth_mode = NDIS_80211_AUTH_WPA2;
1093 else
1094 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1095 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1096 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1097 auth_mode = NDIS_80211_AUTH_WPA;
1098 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1099 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1100 else
1101 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1102 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1103 auth_mode = NDIS_80211_AUTH_SHARED;
1104 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1105 auth_mode = NDIS_80211_AUTH_OPEN;
1106 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1107 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1108 else
1109 return -ENOTSUPP;
1110
1111 tmp = cpu_to_le32(auth_mode);
1112 ret = rndis_set_oid(usbdev,
1113 RNDIS_OID_802_11_AUTHENTICATION_MODE,
1114 &tmp, sizeof(tmp));
1115 if (ret != 0) {
1116 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1117 ret);
1118 return ret;
1119 }
1120
1121 priv->wpa_version = wpa_version;
1122
1123 return 0;
1124}
1125
1126static int set_priv_filter(struct usbnet *usbdev)
1127{
1128 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1129 __le32 tmp;
1130
1131 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1132 __func__, priv->wpa_version);
1133
1134 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1135 priv->wpa_version & NL80211_WPA_VERSION_1)
1136 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1137 else
1138 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1139
1140 return rndis_set_oid(usbdev,
1141 RNDIS_OID_802_11_PRIVACY_FILTER, &tmp,
1142 sizeof(tmp));
1143}
1144
1145static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1146{
1147 __le32 tmp;
1148 int encr_mode, ret;
1149
1150 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1151 __func__, pairwise, groupwise);
1152
1153 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1154 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1155 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1156 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1157 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1158 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1159 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1160 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1161 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1162 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1163 else
1164 encr_mode = NDIS_80211_ENCR_DISABLED;
1165
1166 tmp = cpu_to_le32(encr_mode);
1167 ret = rndis_set_oid(usbdev,
1168 RNDIS_OID_802_11_ENCRYPTION_STATUS, &tmp,
1169 sizeof(tmp));
1170 if (ret != 0) {
1171 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1172 ret);
1173 return ret;
1174 }
1175
1176 return 0;
1177}
1178
1179static int set_infra_mode(struct usbnet *usbdev, int mode)
1180{
1181 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1182 __le32 tmp;
1183 int ret;
1184
1185 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1186 __func__, priv->infra_mode);
1187
1188 tmp = cpu_to_le32(mode);
1189 ret = rndis_set_oid(usbdev,
1190 RNDIS_OID_802_11_INFRASTRUCTURE_MODE,
1191 &tmp, sizeof(tmp));
1192 if (ret != 0) {
1193 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1194 ret);
1195 return ret;
1196 }
1197
1198 /* NDIS drivers clear keys when infrastructure mode is
1199 * changed. But Linux tools assume otherwise. So set the
1200 * keys */
1201 restore_keys(usbdev);
1202
1203 priv->infra_mode = mode;
1204 return 0;
1205}
1206
1207static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1208{
1209 __le32 tmp;
1210
1211 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1212
1213 if (rts_threshold == -1 || rts_threshold > 2347)
1214 rts_threshold = 2347;
1215
1216 tmp = cpu_to_le32(rts_threshold);
1217 return rndis_set_oid(usbdev,
1218 RNDIS_OID_802_11_RTS_THRESHOLD,
1219 &tmp, sizeof(tmp));
1220}
1221
1222static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1223{
1224 __le32 tmp;
1225
1226 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1227
1228 if (frag_threshold < 256 || frag_threshold > 2346)
1229 frag_threshold = 2346;
1230
1231 tmp = cpu_to_le32(frag_threshold);
1232 return rndis_set_oid(usbdev,
1233 RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD,
1234 &tmp, sizeof(tmp));
1235}
1236
1237static void set_default_iw_params(struct usbnet *usbdev)
1238{
1239 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1240 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1241 RNDIS_WLAN_KEY_MGMT_NONE);
1242 set_priv_filter(usbdev);
1243 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1244}
1245
1246static int deauthenticate(struct usbnet *usbdev)
1247{
1248 int ret;
1249
1250 ret = disassociate(usbdev, true);
1251 set_default_iw_params(usbdev);
1252 return ret;
1253}
1254
1255static int set_channel(struct usbnet *usbdev, int channel)
1256{
1257 struct ndis_80211_conf config;
1258 unsigned int dsconfig;
1259 int len, ret;
1260
1261 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1262
1263 /* this OID is valid only when not associated */
1264 if (is_associated(usbdev))
1265 return 0;
1266
1267 dsconfig = 1000 *
1268 ieee80211_channel_to_frequency(channel, NL80211_BAND_2GHZ);
1269
1270 len = sizeof(config);
1271 ret = rndis_query_oid(usbdev,
1272 RNDIS_OID_802_11_CONFIGURATION,
1273 &config, &len);
1274 if (ret < 0) {
1275 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1276 __func__);
1277 return ret;
1278 }
1279
1280 config.ds_config = cpu_to_le32(dsconfig);
1281 ret = rndis_set_oid(usbdev,
1282 RNDIS_OID_802_11_CONFIGURATION,
1283 &config, sizeof(config));
1284
1285 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1286
1287 return ret;
1288}
1289
1290static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
1291 u32 *beacon_period)
1292{
1293 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1294 struct ieee80211_channel *channel;
1295 struct ndis_80211_conf config;
1296 int len, ret;
1297
1298 /* Get channel and beacon interval */
1299 len = sizeof(config);
1300 ret = rndis_query_oid(usbdev,
1301 RNDIS_OID_802_11_CONFIGURATION,
1302 &config, &len);
1303 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_CONFIGURATION -> %d\n",
1304 __func__, ret);
1305 if (ret < 0)
1306 return NULL;
1307
1308 channel = ieee80211_get_channel(priv->wdev.wiphy,
1309 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
1310 if (!channel)
1311 return NULL;
1312
1313 if (beacon_period)
1314 *beacon_period = le32_to_cpu(config.beacon_period);
1315 return channel;
1316}
1317
1318/* index must be 0 - N, as per NDIS */
1319static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1320 u8 index)
1321{
1322 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1323 struct ndis_80211_wep_key ndis_key;
1324 u32 cipher;
1325 int ret;
1326
1327 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1328 __func__, index, key_len);
1329
1330 if (index >= RNDIS_WLAN_NUM_KEYS)
1331 return -EINVAL;
1332
1333 if (key_len == 5)
1334 cipher = WLAN_CIPHER_SUITE_WEP40;
1335 else if (key_len == 13)
1336 cipher = WLAN_CIPHER_SUITE_WEP104;
1337 else
1338 return -EINVAL;
1339
1340 memset(&ndis_key, 0, sizeof(ndis_key));
1341
1342 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1343 ndis_key.length = cpu_to_le32(key_len);
1344 ndis_key.index = cpu_to_le32(index);
1345 memcpy(&ndis_key.material, key, key_len);
1346
1347 if (index == priv->encr_tx_key_index) {
1348 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1349 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1350 RNDIS_WLAN_ALG_NONE);
1351 if (ret)
1352 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1353 ret);
1354 }
1355
1356 ret = rndis_set_oid(usbdev,
1357 RNDIS_OID_802_11_ADD_WEP, &ndis_key,
1358 sizeof(ndis_key));
1359 if (ret != 0) {
1360 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1361 index + 1, ret);
1362 return ret;
1363 }
1364
1365 priv->encr_keys[index].len = key_len;
1366 priv->encr_keys[index].cipher = cipher;
1367 memcpy(&priv->encr_keys[index].material, key, key_len);
1368 eth_broadcast_addr(priv->encr_keys[index].bssid);
1369
1370 return 0;
1371}
1372
1373static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1374 u8 index, const u8 *addr, const u8 *rx_seq,
1375 int seq_len, u32 cipher, __le32 flags)
1376{
1377 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1378 struct ndis_80211_key ndis_key;
1379 bool is_addr_ok;
1380 int ret;
1381
1382 if (index >= RNDIS_WLAN_NUM_KEYS) {
1383 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1384 __func__, index);
1385 return -EINVAL;
1386 }
1387 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1388 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1389 __func__, key_len);
1390 return -EINVAL;
1391 }
1392 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1393 if (!rx_seq || seq_len <= 0) {
1394 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1395 __func__);
1396 return -EINVAL;
1397 }
1398 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1399 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1400 return -EINVAL;
1401 }
1402 }
1403
1404 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1405 !is_broadcast_ether_addr(addr);
1406 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1407 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1408 __func__, addr);
1409 return -EINVAL;
1410 }
1411
1412 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1413 __func__, index,
1414 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1415 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1416 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1417
1418 memset(&ndis_key, 0, sizeof(ndis_key));
1419
1420 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1421 sizeof(ndis_key.material) + key_len);
1422 ndis_key.length = cpu_to_le32(key_len);
1423 ndis_key.index = cpu_to_le32(index) | flags;
1424
1425 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1426 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1427 * different order than NDIS spec, so swap the order here. */
1428 memcpy(ndis_key.material, key, 16);
1429 memcpy(ndis_key.material + 16, key + 24, 8);
1430 memcpy(ndis_key.material + 24, key + 16, 8);
1431 } else
1432 memcpy(ndis_key.material, key, key_len);
1433
1434 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1435 memcpy(ndis_key.rsc, rx_seq, seq_len);
1436
1437 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1438 /* pairwise key */
1439 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1440 } else {
1441 /* group key */
1442 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1443 eth_broadcast_addr(ndis_key.bssid);
1444 else
1445 get_bssid(usbdev, ndis_key.bssid);
1446 }
1447
1448 ret = rndis_set_oid(usbdev,
1449 RNDIS_OID_802_11_ADD_KEY, &ndis_key,
1450 le32_to_cpu(ndis_key.size));
1451 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_ADD_KEY -> %08X\n",
1452 __func__, ret);
1453 if (ret != 0)
1454 return ret;
1455
1456 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1457 priv->encr_keys[index].len = key_len;
1458 priv->encr_keys[index].cipher = cipher;
1459 memcpy(&priv->encr_keys[index].material, key, key_len);
1460 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1461 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1462 else
1463 eth_broadcast_addr(priv->encr_keys[index].bssid);
1464
1465 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1466 priv->encr_tx_key_index = index;
1467
1468 return 0;
1469}
1470
1471static int restore_key(struct usbnet *usbdev, u8 key_idx)
1472{
1473 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1474 struct rndis_wlan_encr_key key;
1475
1476 if (is_wpa_key(priv, key_idx))
1477 return 0;
1478
1479 key = priv->encr_keys[key_idx];
1480
1481 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1482
1483 if (key.len == 0)
1484 return 0;
1485
1486 return add_wep_key(usbdev, key.material, key.len, key_idx);
1487}
1488
1489static void restore_keys(struct usbnet *usbdev)
1490{
1491 int i;
1492
1493 for (i = 0; i < 4; i++)
1494 restore_key(usbdev, i);
1495}
1496
1497static void clear_key(struct rndis_wlan_private *priv, u8 idx)
1498{
1499 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1500}
1501
1502/* remove_key is for both wep and wpa */
1503static int remove_key(struct usbnet *usbdev, u8 index, const u8 *bssid)
1504{
1505 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1506 struct ndis_80211_remove_key remove_key;
1507 __le32 keyindex;
1508 bool is_wpa;
1509 int ret;
1510
1511 if (index >= RNDIS_WLAN_NUM_KEYS)
1512 return -ENOENT;
1513
1514 if (priv->encr_keys[index].len == 0)
1515 return 0;
1516
1517 is_wpa = is_wpa_key(priv, index);
1518
1519 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1520 __func__, index, is_wpa ? "wpa" : "wep",
1521 priv->encr_keys[index].len);
1522
1523 clear_key(priv, index);
1524
1525 if (is_wpa) {
1526 remove_key.size = cpu_to_le32(sizeof(remove_key));
1527 remove_key.index = cpu_to_le32(index);
1528 if (bssid) {
1529 /* pairwise key */
1530 if (!is_broadcast_ether_addr(bssid))
1531 remove_key.index |=
1532 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1533 memcpy(remove_key.bssid, bssid,
1534 sizeof(remove_key.bssid));
1535 } else
1536 memset(remove_key.bssid, 0xff,
1537 sizeof(remove_key.bssid));
1538
1539 ret = rndis_set_oid(usbdev,
1540 RNDIS_OID_802_11_REMOVE_KEY,
1541 &remove_key, sizeof(remove_key));
1542 if (ret != 0)
1543 return ret;
1544 } else {
1545 keyindex = cpu_to_le32(index);
1546 ret = rndis_set_oid(usbdev,
1547 RNDIS_OID_802_11_REMOVE_WEP,
1548 &keyindex, sizeof(keyindex));
1549 if (ret != 0) {
1550 netdev_warn(usbdev->net,
1551 "removing encryption key %d failed (%08X)\n",
1552 index, ret);
1553 return ret;
1554 }
1555 }
1556
1557 /* if it is transmit key, disable encryption */
1558 if (index == priv->encr_tx_key_index)
1559 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1560
1561 return 0;
1562}
1563
1564static void set_multicast_list(struct usbnet *usbdev)
1565{
1566 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1567 struct netdev_hw_addr *ha;
1568 __le32 filter, basefilter;
1569 int ret;
1570 char *mc_addrs = NULL;
1571 int mc_count;
1572
1573 basefilter = filter = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED |
1574 RNDIS_PACKET_TYPE_BROADCAST);
1575
1576 if (usbdev->net->flags & IFF_PROMISC) {
1577 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_PROMISCUOUS |
1578 RNDIS_PACKET_TYPE_ALL_LOCAL);
1579 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1580 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1581 }
1582
1583 if (filter != basefilter)
1584 goto set_filter;
1585
1586 /*
1587 * mc_list should be accessed holding the lock, so copy addresses to
1588 * local buffer first.
1589 */
1590 netif_addr_lock_bh(usbdev->net);
1591 mc_count = netdev_mc_count(usbdev->net);
1592 if (mc_count > priv->multicast_size) {
1593 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1594 } else if (mc_count) {
1595 int i = 0;
1596
1597 mc_addrs = kmalloc_array(mc_count, ETH_ALEN, GFP_ATOMIC);
1598 if (!mc_addrs) {
1599 netif_addr_unlock_bh(usbdev->net);
1600 return;
1601 }
1602
1603 netdev_for_each_mc_addr(ha, usbdev->net)
1604 memcpy(mc_addrs + i++ * ETH_ALEN,
1605 ha->addr, ETH_ALEN);
1606 }
1607 netif_addr_unlock_bh(usbdev->net);
1608
1609 if (filter != basefilter)
1610 goto set_filter;
1611
1612 if (mc_count) {
1613 ret = rndis_set_oid(usbdev,
1614 RNDIS_OID_802_3_MULTICAST_LIST,
1615 mc_addrs, mc_count * ETH_ALEN);
1616 kfree(mc_addrs);
1617 if (ret == 0)
1618 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_MULTICAST);
1619 else
1620 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1621
1622 netdev_dbg(usbdev->net, "RNDIS_OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1623 mc_count, priv->multicast_size, ret);
1624 }
1625
1626set_filter:
1627 ret = rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
1628 sizeof(filter));
1629 if (ret < 0) {
1630 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1631 le32_to_cpu(filter));
1632 }
1633
1634 netdev_dbg(usbdev->net, "RNDIS_OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1635 le32_to_cpu(filter), ret);
1636}
1637
1638#ifdef DEBUG
1639static void debug_print_pmkids(struct usbnet *usbdev,
1640 struct ndis_80211_pmkid *pmkids,
1641 const char *func_str)
1642{
1643 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1644 int i, len, count, max_pmkids, entry_len;
1645
1646 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1647 len = le32_to_cpu(pmkids->length);
1648 count = le32_to_cpu(pmkids->bssid_info_count);
1649
1650 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1651
1652 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1653 "%d)\n", func_str, count, len, entry_len);
1654
1655 if (count > max_pmkids)
1656 count = max_pmkids;
1657
1658 for (i = 0; i < count; i++) {
1659 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1660
1661 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1662 "pmkid: %08X:%08X:%08X:%08X\n",
1663 func_str, pmkids->bssid_info[i].bssid,
1664 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1665 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1666 }
1667}
1668#else
1669static void debug_print_pmkids(struct usbnet *usbdev,
1670 struct ndis_80211_pmkid *pmkids,
1671 const char *func_str)
1672{
1673 return;
1674}
1675#endif
1676
1677static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1678{
1679 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1680 struct ndis_80211_pmkid *pmkids;
1681 int len, ret, max_pmkids;
1682
1683 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1684 len = struct_size(pmkids, bssid_info, max_pmkids);
1685
1686 pmkids = kzalloc(len, GFP_KERNEL);
1687 if (!pmkids)
1688 return ERR_PTR(-ENOMEM);
1689
1690 pmkids->length = cpu_to_le32(len);
1691 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1692
1693 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_PMKID,
1694 pmkids, &len);
1695 if (ret < 0) {
1696 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d)"
1697 " -> %d\n", __func__, len, max_pmkids, ret);
1698
1699 kfree(pmkids);
1700 return ERR_PTR(ret);
1701 }
1702
1703 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1704 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1705
1706 debug_print_pmkids(usbdev, pmkids, __func__);
1707
1708 return pmkids;
1709}
1710
1711static int set_device_pmkids(struct usbnet *usbdev,
1712 struct ndis_80211_pmkid *pmkids)
1713{
1714 int ret, len, num_pmkids;
1715
1716 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1717 len = struct_size(pmkids, bssid_info, num_pmkids);
1718 pmkids->length = cpu_to_le32(len);
1719
1720 debug_print_pmkids(usbdev, pmkids, __func__);
1721
1722 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID, pmkids,
1723 le32_to_cpu(pmkids->length));
1724 if (ret < 0) {
1725 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d) -> %d"
1726 "\n", __func__, len, num_pmkids, ret);
1727 }
1728
1729 kfree(pmkids);
1730 return ret;
1731}
1732
1733static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1734 struct ndis_80211_pmkid *pmkids,
1735 struct cfg80211_pmksa *pmksa,
1736 int max_pmkids)
1737{
1738 int i, err;
1739 unsigned int count;
1740
1741 count = le32_to_cpu(pmkids->bssid_info_count);
1742
1743 if (count > max_pmkids)
1744 count = max_pmkids;
1745
1746 for (i = 0; i < count; i++)
1747 if (ether_addr_equal(pmkids->bssid_info[i].bssid,
1748 pmksa->bssid))
1749 break;
1750
1751 /* pmkid not found */
1752 if (i == count) {
1753 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1754 __func__, pmksa->bssid);
1755 err = -ENOENT;
1756 goto error;
1757 }
1758
1759 for (; i + 1 < count; i++)
1760 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1761
1762 count--;
1763 pmkids->length = cpu_to_le32(struct_size(pmkids, bssid_info, count));
1764 pmkids->bssid_info_count = cpu_to_le32(count);
1765
1766 return pmkids;
1767error:
1768 kfree(pmkids);
1769 return ERR_PTR(err);
1770}
1771
1772static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1773 struct ndis_80211_pmkid *pmkids,
1774 struct cfg80211_pmksa *pmksa,
1775 int max_pmkids)
1776{
1777 struct ndis_80211_pmkid *new_pmkids;
1778 int i, err, newlen;
1779 unsigned int count;
1780
1781 count = le32_to_cpu(pmkids->bssid_info_count);
1782
1783 if (count > max_pmkids)
1784 count = max_pmkids;
1785
1786 /* update with new pmkid */
1787 for (i = 0; i < count; i++) {
1788 if (!ether_addr_equal(pmkids->bssid_info[i].bssid,
1789 pmksa->bssid))
1790 continue;
1791
1792 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1793 WLAN_PMKID_LEN);
1794
1795 return pmkids;
1796 }
1797
1798 /* out of space, return error */
1799 if (i == max_pmkids) {
1800 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1801 err = -ENOSPC;
1802 goto error;
1803 }
1804
1805 /* add new pmkid */
1806 newlen = struct_size(pmkids, bssid_info, count + 1);
1807
1808 new_pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1809 if (!new_pmkids) {
1810 err = -ENOMEM;
1811 goto error;
1812 }
1813 pmkids = new_pmkids;
1814
1815 pmkids->length = cpu_to_le32(newlen);
1816 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1817
1818 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1819 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1820
1821 return pmkids;
1822error:
1823 kfree(pmkids);
1824 return ERR_PTR(err);
1825}
1826
1827/*
1828 * cfg80211 ops
1829 */
1830static int rndis_change_virtual_intf(struct wiphy *wiphy,
1831 struct net_device *dev,
1832 enum nl80211_iftype type,
1833 struct vif_params *params)
1834{
1835 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1836 struct usbnet *usbdev = priv->usbdev;
1837 int mode;
1838
1839 switch (type) {
1840 case NL80211_IFTYPE_ADHOC:
1841 mode = NDIS_80211_INFRA_ADHOC;
1842 break;
1843 case NL80211_IFTYPE_STATION:
1844 mode = NDIS_80211_INFRA_INFRA;
1845 break;
1846 default:
1847 return -EINVAL;
1848 }
1849
1850 priv->wdev.iftype = type;
1851
1852 return set_infra_mode(usbdev, mode);
1853}
1854
1855static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1856{
1857 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1858 struct usbnet *usbdev = priv->usbdev;
1859 int err;
1860
1861 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1862 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1863 if (err < 0)
1864 return err;
1865 }
1866
1867 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1868 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1869 if (err < 0)
1870 return err;
1871 }
1872
1873 return 0;
1874}
1875
1876static int rndis_set_tx_power(struct wiphy *wiphy,
1877 struct wireless_dev *wdev,
1878 enum nl80211_tx_power_setting type,
1879 int mbm)
1880{
1881 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1882 struct usbnet *usbdev = priv->usbdev;
1883
1884 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1885 __func__, type, mbm);
1886
1887 if (mbm < 0 || (mbm % 100))
1888 return -ENOTSUPP;
1889
1890 /* Device doesn't support changing txpower after initialization, only
1891 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1892 * currently used.
1893 */
1894 if (type == NL80211_TX_POWER_AUTOMATIC ||
1895 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1896 if (!priv->radio_on)
1897 disassociate(usbdev, true); /* turn on radio */
1898
1899 return 0;
1900 }
1901
1902 return -ENOTSUPP;
1903}
1904
1905static int rndis_get_tx_power(struct wiphy *wiphy,
1906 struct wireless_dev *wdev,
1907 int *dbm)
1908{
1909 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1910 struct usbnet *usbdev = priv->usbdev;
1911
1912 *dbm = get_bcm4320_power_dbm(priv);
1913
1914 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1915
1916 return 0;
1917}
1918
1919#define SCAN_DELAY_JIFFIES (6 * HZ)
1920static int rndis_scan(struct wiphy *wiphy,
1921 struct cfg80211_scan_request *request)
1922{
1923 struct net_device *dev = request->wdev->netdev;
1924 struct usbnet *usbdev = netdev_priv(dev);
1925 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1926 int ret;
1927 int delay = SCAN_DELAY_JIFFIES;
1928
1929 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1930
1931 /* Get current bssid list from device before new scan, as new scan
1932 * clears internal bssid list.
1933 */
1934 rndis_check_bssid_list(usbdev, NULL, NULL);
1935
1936 if (priv->scan_request && priv->scan_request != request)
1937 return -EBUSY;
1938
1939 priv->scan_request = request;
1940
1941 ret = rndis_start_bssid_list_scan(usbdev);
1942 if (ret == 0) {
1943 if (priv->device_type == RNDIS_BCM4320A)
1944 delay = HZ;
1945
1946 /* Wait before retrieving scan results from device */
1947 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1948 }
1949
1950 return ret;
1951}
1952
1953static bool rndis_bss_info_update(struct usbnet *usbdev,
1954 struct ndis_80211_bssid_ex *bssid)
1955{
1956 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1957 struct ieee80211_channel *channel;
1958 struct cfg80211_bss *bss;
1959 s32 signal;
1960 u64 timestamp;
1961 u16 capability;
1962 u16 beacon_interval;
1963 struct ndis_80211_fixed_ies *fixed;
1964 int ie_len, bssid_len;
1965 u8 *ie;
1966
1967 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
1968 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
1969
1970 /* parse bssid structure */
1971 bssid_len = le32_to_cpu(bssid->length);
1972
1973 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1974 sizeof(struct ndis_80211_fixed_ies))
1975 return NULL;
1976
1977 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1978
1979 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1980 ie_len = min(bssid_len - (int)sizeof(*bssid),
1981 (int)le32_to_cpu(bssid->ie_length));
1982 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1983 if (ie_len < 0)
1984 return NULL;
1985
1986 /* extract data for cfg80211_inform_bss */
1987 channel = ieee80211_get_channel(priv->wdev.wiphy,
1988 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1989 if (!channel)
1990 return NULL;
1991
1992 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1993 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1994 capability = le16_to_cpu(fixed->capabilities);
1995 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1996
1997 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel,
1998 CFG80211_BSS_FTYPE_UNKNOWN, bssid->mac,
1999 timestamp, capability, beacon_interval,
2000 ie, ie_len, signal, GFP_KERNEL);
2001 cfg80211_put_bss(priv->wdev.wiphy, bss);
2002
2003 return (bss != NULL);
2004}
2005
2006static struct ndis_80211_bssid_ex *next_bssid_list_item(
2007 struct ndis_80211_bssid_ex *bssid,
2008 int *bssid_len, void *buf, int len)
2009{
2010 void *buf_end, *bssid_end;
2011
2012 buf_end = (char *)buf + len;
2013 bssid_end = (char *)bssid + *bssid_len;
2014
2015 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2016 *bssid_len = 0;
2017 return NULL;
2018 } else {
2019 bssid = (void *)((char *)bssid + *bssid_len);
2020 *bssid_len = le32_to_cpu(bssid->length);
2021 return bssid;
2022 }
2023}
2024
2025static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2026 int bssid_len, void *buf, int len)
2027{
2028 void *buf_end, *bssid_end;
2029
2030 if (!bssid || bssid_len <= 0 || bssid_len > len)
2031 return false;
2032
2033 buf_end = (char *)buf + len;
2034 bssid_end = (char *)bssid + bssid_len;
2035
2036 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2037}
2038
2039static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2040 bool *matched)
2041{
2042 void *buf = NULL;
2043 struct ndis_80211_bssid_list_ex *bssid_list;
2044 struct ndis_80211_bssid_ex *bssid;
2045 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2046
2047 netdev_dbg(usbdev->net, "%s()\n", __func__);
2048
2049 len = CONTROL_BUFFER_SIZE;
2050resize_buf:
2051 buf = kzalloc(len, GFP_KERNEL);
2052 if (!buf) {
2053 ret = -ENOMEM;
2054 goto out;
2055 }
2056
2057 /* BSSID-list might have got bigger last time we checked, keep
2058 * resizing until it won't get any bigger.
2059 */
2060 new_len = len;
2061 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST,
2062 buf, &new_len);
2063 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2064 goto out;
2065
2066 if (new_len > len) {
2067 len = new_len;
2068 kfree(buf);
2069 goto resize_buf;
2070 }
2071
2072 len = new_len;
2073
2074 bssid_list = buf;
2075 count = le32_to_cpu(bssid_list->num_items);
2076 real_count = 0;
2077 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2078
2079 bssid_len = 0;
2080 bssid = next_bssid_list_item((void *)bssid_list->bssid_data,
2081 &bssid_len, buf, len);
2082
2083 /* Device returns incorrect 'num_items'. Workaround by ignoring the
2084 * received 'num_items' and walking through full bssid buffer instead.
2085 */
2086 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2087 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2088 matched) {
2089 if (ether_addr_equal(bssid->mac, match_bssid))
2090 *matched = true;
2091 }
2092
2093 real_count++;
2094 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2095 }
2096
2097 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2098 " %d\n", __func__, count, real_count);
2099
2100out:
2101 kfree(buf);
2102 return ret;
2103}
2104
2105static void rndis_get_scan_results(struct work_struct *work)
2106{
2107 struct rndis_wlan_private *priv =
2108 container_of(work, struct rndis_wlan_private, scan_work.work);
2109 struct usbnet *usbdev = priv->usbdev;
2110 struct cfg80211_scan_info info = {};
2111 int ret;
2112
2113 netdev_dbg(usbdev->net, "get_scan_results\n");
2114
2115 if (!priv->scan_request)
2116 return;
2117
2118 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2119
2120 info.aborted = ret < 0;
2121 cfg80211_scan_done(priv->scan_request, &info);
2122
2123 priv->scan_request = NULL;
2124}
2125
2126static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2127 struct cfg80211_connect_params *sme)
2128{
2129 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2130 struct usbnet *usbdev = priv->usbdev;
2131 struct ieee80211_channel *channel = sme->channel;
2132 struct ndis_80211_ssid ssid;
2133 int pairwise = RNDIS_WLAN_ALG_NONE;
2134 int groupwise = RNDIS_WLAN_ALG_NONE;
2135 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2136 int length, i, ret, chan = -1;
2137
2138 if (channel)
2139 chan = ieee80211_frequency_to_channel(channel->center_freq);
2140
2141 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2142 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2143 pairwise |=
2144 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2145
2146 if (sme->crypto.n_ciphers_pairwise > 0 &&
2147 pairwise == RNDIS_WLAN_ALG_NONE) {
2148 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2149 return -ENOTSUPP;
2150 }
2151
2152 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2153 keymgmt |=
2154 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2155
2156 if (sme->crypto.n_akm_suites > 0 &&
2157 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2158 netdev_err(usbdev->net, "Invalid keymgmt\n");
2159 return -ENOTSUPP;
2160 }
2161
2162 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2163 sme->ssid, sme->bssid, chan,
2164 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2165 groupwise, pairwise, keymgmt);
2166
2167 if (is_associated(usbdev))
2168 disassociate(usbdev, false);
2169
2170 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2171 if (ret < 0) {
2172 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2173 ret);
2174 goto err_turn_radio_on;
2175 }
2176
2177 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2178 keymgmt);
2179 if (ret < 0) {
2180 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2181 ret);
2182 goto err_turn_radio_on;
2183 }
2184
2185 set_priv_filter(usbdev);
2186
2187 ret = set_encr_mode(usbdev, pairwise, groupwise);
2188 if (ret < 0) {
2189 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2190 ret);
2191 goto err_turn_radio_on;
2192 }
2193
2194 if (channel) {
2195 ret = set_channel(usbdev, chan);
2196 if (ret < 0) {
2197 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2198 ret);
2199 goto err_turn_radio_on;
2200 }
2201 }
2202
2203 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2204 priv->encr_tx_key_index = sme->key_idx;
2205 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2206 if (ret < 0) {
2207 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2208 ret, sme->key_len, sme->key_idx);
2209 goto err_turn_radio_on;
2210 }
2211 }
2212
2213 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2214 !is_broadcast_ether_addr(sme->bssid)) {
2215 ret = set_bssid(usbdev, sme->bssid);
2216 if (ret < 0) {
2217 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2218 ret);
2219 goto err_turn_radio_on;
2220 }
2221 } else
2222 clear_bssid(usbdev);
2223
2224 length = sme->ssid_len;
2225 if (length > NDIS_802_11_LENGTH_SSID)
2226 length = NDIS_802_11_LENGTH_SSID;
2227
2228 memset(&ssid, 0, sizeof(ssid));
2229 ssid.length = cpu_to_le32(length);
2230 memcpy(ssid.essid, sme->ssid, length);
2231
2232 /* Pause and purge rx queue, so we don't pass packets before
2233 * 'media connect'-indication.
2234 */
2235 usbnet_pause_rx(usbdev);
2236 usbnet_purge_paused_rxq(usbdev);
2237
2238 ret = set_essid(usbdev, &ssid);
2239 if (ret < 0)
2240 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2241 return ret;
2242
2243err_turn_radio_on:
2244 disassociate(usbdev, true);
2245
2246 return ret;
2247}
2248
2249static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2250 u16 reason_code)
2251{
2252 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2253 struct usbnet *usbdev = priv->usbdev;
2254
2255 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2256
2257 priv->connected = false;
2258 eth_zero_addr(priv->bssid);
2259
2260 return deauthenticate(usbdev);
2261}
2262
2263static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2264 struct cfg80211_ibss_params *params)
2265{
2266 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2267 struct usbnet *usbdev = priv->usbdev;
2268 struct ieee80211_channel *channel = params->chandef.chan;
2269 struct ndis_80211_ssid ssid;
2270 enum nl80211_auth_type auth_type;
2271 int ret, alg, length, chan = -1;
2272
2273 if (channel)
2274 chan = ieee80211_frequency_to_channel(channel->center_freq);
2275
2276 /* TODO: How to handle ad-hoc encryption?
2277 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2278 * pre-shared for encryption (open/shared/wpa), is key set before
2279 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2280 */
2281 if (params->privacy) {
2282 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2283 alg = RNDIS_WLAN_ALG_WEP;
2284 } else {
2285 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2286 alg = RNDIS_WLAN_ALG_NONE;
2287 }
2288
2289 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2290 params->ssid, params->bssid, chan, params->privacy);
2291
2292 if (is_associated(usbdev))
2293 disassociate(usbdev, false);
2294
2295 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2296 if (ret < 0) {
2297 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2298 ret);
2299 goto err_turn_radio_on;
2300 }
2301
2302 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2303 if (ret < 0) {
2304 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2305 ret);
2306 goto err_turn_radio_on;
2307 }
2308
2309 set_priv_filter(usbdev);
2310
2311 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2312 if (ret < 0) {
2313 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2314 ret);
2315 goto err_turn_radio_on;
2316 }
2317
2318 if (channel) {
2319 ret = set_channel(usbdev, chan);
2320 if (ret < 0) {
2321 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2322 ret);
2323 goto err_turn_radio_on;
2324 }
2325 }
2326
2327 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2328 !is_broadcast_ether_addr(params->bssid)) {
2329 ret = set_bssid(usbdev, params->bssid);
2330 if (ret < 0) {
2331 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2332 ret);
2333 goto err_turn_radio_on;
2334 }
2335 } else
2336 clear_bssid(usbdev);
2337
2338 length = params->ssid_len;
2339 if (length > NDIS_802_11_LENGTH_SSID)
2340 length = NDIS_802_11_LENGTH_SSID;
2341
2342 memset(&ssid, 0, sizeof(ssid));
2343 ssid.length = cpu_to_le32(length);
2344 memcpy(ssid.essid, params->ssid, length);
2345
2346 /* Don't need to pause rx queue for ad-hoc. */
2347 usbnet_purge_paused_rxq(usbdev);
2348 usbnet_resume_rx(usbdev);
2349
2350 ret = set_essid(usbdev, &ssid);
2351 if (ret < 0)
2352 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2353 ret);
2354 return ret;
2355
2356err_turn_radio_on:
2357 disassociate(usbdev, true);
2358
2359 return ret;
2360}
2361
2362static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2363{
2364 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2365 struct usbnet *usbdev = priv->usbdev;
2366
2367 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2368
2369 priv->connected = false;
2370 eth_zero_addr(priv->bssid);
2371
2372 return deauthenticate(usbdev);
2373}
2374
2375static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2376 int link_id, u8 key_index, bool pairwise,
2377 const u8 *mac_addr, struct key_params *params)
2378{
2379 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2380 struct usbnet *usbdev = priv->usbdev;
2381 __le32 flags;
2382
2383 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2384 __func__, key_index, mac_addr, params->cipher);
2385
2386 switch (params->cipher) {
2387 case WLAN_CIPHER_SUITE_WEP40:
2388 case WLAN_CIPHER_SUITE_WEP104:
2389 return add_wep_key(usbdev, params->key, params->key_len,
2390 key_index);
2391 case WLAN_CIPHER_SUITE_TKIP:
2392 case WLAN_CIPHER_SUITE_CCMP:
2393 flags = 0;
2394
2395 if (params->seq && params->seq_len > 0)
2396 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2397 if (mac_addr)
2398 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2399 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2400
2401 return add_wpa_key(usbdev, params->key, params->key_len,
2402 key_index, mac_addr, params->seq,
2403 params->seq_len, params->cipher, flags);
2404 default:
2405 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2406 __func__, params->cipher);
2407 return -ENOTSUPP;
2408 }
2409}
2410
2411static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2412 int link_id, u8 key_index, bool pairwise,
2413 const u8 *mac_addr)
2414{
2415 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2416 struct usbnet *usbdev = priv->usbdev;
2417
2418 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2419
2420 return remove_key(usbdev, key_index, mac_addr);
2421}
2422
2423static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2424 int link_id, u8 key_index, bool unicast,
2425 bool multicast)
2426{
2427 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2428 struct usbnet *usbdev = priv->usbdev;
2429 struct rndis_wlan_encr_key key;
2430
2431 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2432
2433 if (key_index >= RNDIS_WLAN_NUM_KEYS)
2434 return -ENOENT;
2435
2436 priv->encr_tx_key_index = key_index;
2437
2438 if (is_wpa_key(priv, key_index))
2439 return 0;
2440
2441 key = priv->encr_keys[key_index];
2442
2443 return add_wep_key(usbdev, key.material, key.len, key_index);
2444}
2445
2446static void rndis_fill_station_info(struct usbnet *usbdev,
2447 struct station_info *sinfo)
2448{
2449 __le32 linkspeed, rssi;
2450 int ret, len;
2451
2452 memset(sinfo, 0, sizeof(*sinfo));
2453
2454 len = sizeof(linkspeed);
2455 ret = rndis_query_oid(usbdev, RNDIS_OID_GEN_LINK_SPEED, &linkspeed, &len);
2456 if (ret == 0) {
2457 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2458 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
2459 }
2460
2461 len = sizeof(rssi);
2462 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2463 &rssi, &len);
2464 if (ret == 0) {
2465 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2466 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
2467 }
2468}
2469
2470static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2471 const u8 *mac, struct station_info *sinfo)
2472{
2473 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2474 struct usbnet *usbdev = priv->usbdev;
2475
2476 if (!ether_addr_equal(priv->bssid, mac))
2477 return -ENOENT;
2478
2479 rndis_fill_station_info(usbdev, sinfo);
2480
2481 return 0;
2482}
2483
2484static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2485 int idx, u8 *mac, struct station_info *sinfo)
2486{
2487 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2488 struct usbnet *usbdev = priv->usbdev;
2489
2490 if (idx != 0)
2491 return -ENOENT;
2492
2493 memcpy(mac, priv->bssid, ETH_ALEN);
2494
2495 rndis_fill_station_info(usbdev, sinfo);
2496
2497 return 0;
2498}
2499
2500static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2501 struct cfg80211_pmksa *pmksa)
2502{
2503 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2504 struct usbnet *usbdev = priv->usbdev;
2505 struct ndis_80211_pmkid *pmkids;
2506 u32 *tmp = (u32 *)pmksa->pmkid;
2507
2508 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2509 pmksa->bssid,
2510 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2511 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2512
2513 pmkids = get_device_pmkids(usbdev);
2514 if (IS_ERR(pmkids)) {
2515 /* couldn't read PMKID cache from device */
2516 return PTR_ERR(pmkids);
2517 }
2518
2519 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2520 if (IS_ERR(pmkids)) {
2521 /* not found, list full, etc */
2522 return PTR_ERR(pmkids);
2523 }
2524
2525 return set_device_pmkids(usbdev, pmkids);
2526}
2527
2528static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2529 struct cfg80211_pmksa *pmksa)
2530{
2531 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2532 struct usbnet *usbdev = priv->usbdev;
2533 struct ndis_80211_pmkid *pmkids;
2534 u32 *tmp = (u32 *)pmksa->pmkid;
2535
2536 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2537 pmksa->bssid,
2538 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2539 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2540
2541 pmkids = get_device_pmkids(usbdev);
2542 if (IS_ERR(pmkids)) {
2543 /* Couldn't read PMKID cache from device */
2544 return PTR_ERR(pmkids);
2545 }
2546
2547 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2548 if (IS_ERR(pmkids)) {
2549 /* not found, etc */
2550 return PTR_ERR(pmkids);
2551 }
2552
2553 return set_device_pmkids(usbdev, pmkids);
2554}
2555
2556static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2557{
2558 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2559 struct usbnet *usbdev = priv->usbdev;
2560 struct ndis_80211_pmkid pmkid;
2561
2562 netdev_dbg(usbdev->net, "%s()\n", __func__);
2563
2564 memset(&pmkid, 0, sizeof(pmkid));
2565
2566 pmkid.length = cpu_to_le32(sizeof(pmkid));
2567 pmkid.bssid_info_count = cpu_to_le32(0);
2568
2569 return rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID,
2570 &pmkid, sizeof(pmkid));
2571}
2572
2573static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2574 bool enabled, int timeout)
2575{
2576 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2577 struct usbnet *usbdev = priv->usbdev;
2578 int power_mode;
2579 __le32 mode;
2580 int ret;
2581
2582 if (priv->device_type != RNDIS_BCM4320B)
2583 return -ENOTSUPP;
2584
2585 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2586 enabled ? "enabled" : "disabled",
2587 timeout);
2588
2589 if (enabled)
2590 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2591 else
2592 power_mode = NDIS_80211_POWER_MODE_CAM;
2593
2594 if (power_mode == priv->power_mode)
2595 return 0;
2596
2597 priv->power_mode = power_mode;
2598
2599 mode = cpu_to_le32(power_mode);
2600 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_POWER_MODE,
2601 &mode, sizeof(mode));
2602
2603 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_POWER_MODE -> %d\n",
2604 __func__, ret);
2605
2606 return ret;
2607}
2608
2609static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2610 struct net_device *dev,
2611 s32 rssi_thold, u32 rssi_hyst)
2612{
2613 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2614
2615 priv->cqm_rssi_thold = rssi_thold;
2616 priv->cqm_rssi_hyst = rssi_hyst;
2617 priv->last_cqm_event_rssi = 0;
2618
2619 return 0;
2620}
2621
2622static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2623 struct ndis_80211_assoc_info *info)
2624{
2625 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2626 struct ieee80211_channel *channel;
2627 struct ndis_80211_ssid ssid;
2628 struct cfg80211_bss *bss;
2629 s32 signal;
2630 u64 timestamp;
2631 u16 capability;
2632 u32 beacon_period = 0;
2633 __le32 rssi;
2634 u8 ie_buf[34];
2635 int len, ret, ie_len;
2636
2637 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2638 len = sizeof(rssi);
2639 rssi = 0;
2640 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2641 &rssi, &len);
2642 signal = level_to_qual(le32_to_cpu(rssi));
2643
2644 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_RSSI -> %d, "
2645 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2646 level_to_qual(le32_to_cpu(rssi)));
2647
2648 /* Get AP capabilities */
2649 if (info) {
2650 capability = le16_to_cpu(info->resp_ie.capa);
2651 } else {
2652 /* Set atleast ESS/IBSS capability */
2653 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2654 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2655 }
2656
2657 /* Get channel and beacon interval */
2658 channel = get_current_channel(usbdev, &beacon_period);
2659 if (!channel) {
2660 netdev_warn(usbdev->net, "%s(): could not get channel.\n",
2661 __func__);
2662 return;
2663 }
2664
2665 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2666 len = sizeof(ssid);
2667 memset(&ssid, 0, sizeof(ssid));
2668 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_SSID,
2669 &ssid, &len);
2670 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_SSID -> %d, len: %d, ssid: "
2671 "'%.32s'\n", __func__, ret,
2672 le32_to_cpu(ssid.length), ssid.essid);
2673
2674 if (le32_to_cpu(ssid.length) > 32)
2675 ssid.length = cpu_to_le32(32);
2676
2677 ie_buf[0] = WLAN_EID_SSID;
2678 ie_buf[1] = le32_to_cpu(ssid.length);
2679 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2680
2681 ie_len = le32_to_cpu(ssid.length) + 2;
2682
2683 /* no tsf */
2684 timestamp = 0;
2685
2686 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2687 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2688 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2689 bssid, (u32)timestamp, capability, beacon_period, ie_len,
2690 ssid.essid, signal);
2691
2692 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel,
2693 CFG80211_BSS_FTYPE_UNKNOWN, bssid,
2694 timestamp, capability, beacon_period,
2695 ie_buf, ie_len, signal, GFP_KERNEL);
2696 cfg80211_put_bss(priv->wdev.wiphy, bss);
2697}
2698
2699/*
2700 * workers, indication handlers, device poller
2701 */
2702static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2703{
2704 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2705 struct ndis_80211_assoc_info *info = NULL;
2706 u8 bssid[ETH_ALEN];
2707 unsigned int resp_ie_len, req_ie_len;
2708 unsigned int offset;
2709 u8 *req_ie, *resp_ie;
2710 int ret;
2711 bool roamed = false;
2712 bool match_bss;
2713
2714 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2715 /* received media connect indication while connected, either
2716 * device reassociated with same AP or roamed to new. */
2717 roamed = true;
2718 }
2719
2720 req_ie_len = 0;
2721 resp_ie_len = 0;
2722 req_ie = NULL;
2723 resp_ie = NULL;
2724
2725 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2726 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2727 if (!info) {
2728 /* No memory? Try resume work later */
2729 set_bit(WORK_LINK_UP, &priv->work_pending);
2730 queue_work(priv->workqueue, &priv->work);
2731 return;
2732 }
2733
2734 /* Get association info IEs from device. */
2735 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2736 if (!ret) {
2737 req_ie_len = le32_to_cpu(info->req_ie_length);
2738 if (req_ie_len > CONTROL_BUFFER_SIZE)
2739 req_ie_len = CONTROL_BUFFER_SIZE;
2740 if (req_ie_len != 0) {
2741 offset = le32_to_cpu(info->offset_req_ies);
2742
2743 if (offset > CONTROL_BUFFER_SIZE)
2744 offset = CONTROL_BUFFER_SIZE;
2745
2746 req_ie = (u8 *)info + offset;
2747
2748 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2749 req_ie_len =
2750 CONTROL_BUFFER_SIZE - offset;
2751 }
2752
2753 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2754 if (resp_ie_len > CONTROL_BUFFER_SIZE)
2755 resp_ie_len = CONTROL_BUFFER_SIZE;
2756 if (resp_ie_len != 0) {
2757 offset = le32_to_cpu(info->offset_resp_ies);
2758
2759 if (offset > CONTROL_BUFFER_SIZE)
2760 offset = CONTROL_BUFFER_SIZE;
2761
2762 resp_ie = (u8 *)info + offset;
2763
2764 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2765 resp_ie_len =
2766 CONTROL_BUFFER_SIZE - offset;
2767 }
2768 } else {
2769 /* Since rndis_wlan_craft_connected_bss() might use info
2770 * later and expects info to contain valid data if
2771 * non-null, free info and set NULL here.
2772 */
2773 kfree(info);
2774 info = NULL;
2775 }
2776 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2777 return;
2778
2779 ret = get_bssid(usbdev, bssid);
2780 if (ret < 0)
2781 memset(bssid, 0, sizeof(bssid));
2782
2783 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2784 bssid, roamed ? " roamed" : "");
2785
2786 /* Internal bss list in device should contain at least the currently
2787 * connected bss and we can get it to cfg80211 with
2788 * rndis_check_bssid_list().
2789 *
2790 * NDIS spec says: "If the device is associated, but the associated
2791 * BSSID is not in its BSSID scan list, then the driver must add an
2792 * entry for the BSSID at the end of the data that it returns in
2793 * response to query of RNDIS_OID_802_11_BSSID_LIST."
2794 *
2795 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2796 */
2797 match_bss = false;
2798 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2799
2800 if (!is_zero_ether_addr(bssid) && !match_bss) {
2801 /* Couldn't get bss from device, we need to manually craft bss
2802 * for cfg80211.
2803 */
2804 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2805 }
2806
2807 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2808 if (!roamed) {
2809 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2810 req_ie_len, resp_ie,
2811 resp_ie_len, 0, GFP_KERNEL);
2812 } else {
2813 struct cfg80211_roam_info roam_info = {
2814 .links[0].channel =
2815 get_current_channel(usbdev, NULL),
2816 .links[0].bssid = bssid,
2817 .req_ie = req_ie,
2818 .req_ie_len = req_ie_len,
2819 .resp_ie = resp_ie,
2820 .resp_ie_len = resp_ie_len,
2821 };
2822
2823 cfg80211_roamed(usbdev->net, &roam_info, GFP_KERNEL);
2824 }
2825 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2826 cfg80211_ibss_joined(usbdev->net, bssid,
2827 get_current_channel(usbdev, NULL),
2828 GFP_KERNEL);
2829
2830 kfree(info);
2831
2832 priv->connected = true;
2833 memcpy(priv->bssid, bssid, ETH_ALEN);
2834
2835 usbnet_resume_rx(usbdev);
2836 netif_carrier_on(usbdev->net);
2837}
2838
2839static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2840{
2841 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2842
2843 if (priv->connected) {
2844 priv->connected = false;
2845 eth_zero_addr(priv->bssid);
2846
2847 deauthenticate(usbdev);
2848
2849 cfg80211_disconnected(usbdev->net, 0, NULL, 0, true, GFP_KERNEL);
2850 }
2851
2852 netif_carrier_off(usbdev->net);
2853}
2854
2855static void rndis_wlan_worker(struct work_struct *work)
2856{
2857 struct rndis_wlan_private *priv =
2858 container_of(work, struct rndis_wlan_private, work);
2859 struct usbnet *usbdev = priv->usbdev;
2860
2861 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2862 rndis_wlan_do_link_up_work(usbdev);
2863
2864 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2865 rndis_wlan_do_link_down_work(usbdev);
2866
2867 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2868 set_multicast_list(usbdev);
2869}
2870
2871static void rndis_wlan_set_multicast_list(struct net_device *dev)
2872{
2873 struct usbnet *usbdev = netdev_priv(dev);
2874 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2875
2876 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2877 return;
2878
2879 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2880 queue_work(priv->workqueue, &priv->work);
2881}
2882
2883static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2884 struct ndis_80211_status_indication *indication,
2885 int len)
2886{
2887 u8 *buf;
2888 const char *type;
2889 int flags, buflen, key_id;
2890 bool pairwise_error, group_error;
2891 struct ndis_80211_auth_request *auth_req;
2892 enum nl80211_key_type key_type;
2893
2894 /* must have at least one array entry */
2895 if (len < offsetof(struct ndis_80211_status_indication, u) +
2896 sizeof(struct ndis_80211_auth_request)) {
2897 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2898 len);
2899 return;
2900 }
2901
2902 buf = (void *)&indication->u.auth_request[0];
2903 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2904
2905 while (buflen >= sizeof(*auth_req)) {
2906 auth_req = (void *)buf;
2907 if (buflen < le32_to_cpu(auth_req->length))
2908 return;
2909 type = "unknown";
2910 flags = le32_to_cpu(auth_req->flags);
2911 pairwise_error = false;
2912 group_error = false;
2913
2914 if (flags & 0x1)
2915 type = "reauth request";
2916 if (flags & 0x2)
2917 type = "key update request";
2918 if (flags & 0x6) {
2919 pairwise_error = true;
2920 type = "pairwise_error";
2921 }
2922 if (flags & 0xe) {
2923 group_error = true;
2924 type = "group_error";
2925 }
2926
2927 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2928 type, le32_to_cpu(auth_req->flags));
2929
2930 if (pairwise_error) {
2931 key_type = NL80211_KEYTYPE_PAIRWISE;
2932 key_id = -1;
2933
2934 cfg80211_michael_mic_failure(usbdev->net,
2935 auth_req->bssid,
2936 key_type, key_id, NULL,
2937 GFP_KERNEL);
2938 }
2939
2940 if (group_error) {
2941 key_type = NL80211_KEYTYPE_GROUP;
2942 key_id = -1;
2943
2944 cfg80211_michael_mic_failure(usbdev->net,
2945 auth_req->bssid,
2946 key_type, key_id, NULL,
2947 GFP_KERNEL);
2948 }
2949
2950 buflen -= le32_to_cpu(auth_req->length);
2951 buf += le32_to_cpu(auth_req->length);
2952 }
2953}
2954
2955static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2956 struct ndis_80211_status_indication *indication,
2957 int len)
2958{
2959 struct ndis_80211_pmkid_cand_list *cand_list;
2960 int list_len, expected_len, i;
2961
2962 if (len < offsetof(struct ndis_80211_status_indication, u) +
2963 sizeof(struct ndis_80211_pmkid_cand_list)) {
2964 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2965 len);
2966 return;
2967 }
2968
2969 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2970 sizeof(struct ndis_80211_pmkid_candidate);
2971 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2972 offsetof(struct ndis_80211_status_indication, u);
2973
2974 if (len < expected_len) {
2975 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2976 len, expected_len);
2977 return;
2978 }
2979
2980 cand_list = &indication->u.cand_list;
2981
2982 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2983 le32_to_cpu(cand_list->version),
2984 le32_to_cpu(cand_list->num_candidates));
2985
2986 if (le32_to_cpu(cand_list->version) != 1)
2987 return;
2988
2989 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2990 struct ndis_80211_pmkid_candidate *cand =
2991 &cand_list->candidate_list[i];
2992 bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH);
2993
2994 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n",
2995 i, le32_to_cpu(cand->flags), preauth, cand->bssid);
2996
2997 cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid,
2998 preauth, GFP_ATOMIC);
2999 }
3000}
3001
3002static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3003 struct rndis_indicate *msg, int buflen)
3004{
3005 struct ndis_80211_status_indication *indication;
3006 unsigned int len, offset;
3007
3008 offset = offsetof(struct rndis_indicate, status) +
3009 le32_to_cpu(msg->offset);
3010 len = le32_to_cpu(msg->length);
3011
3012 if (len < 8) {
3013 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3014 len);
3015 return;
3016 }
3017
3018 if (len > buflen || offset > buflen || offset + len > buflen) {
3019 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3020 offset + len, buflen);
3021 return;
3022 }
3023
3024 indication = (void *)((u8 *)msg + offset);
3025
3026 switch (le32_to_cpu(indication->status_type)) {
3027 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3028 netdev_info(usbdev->net, "radio state indication: %i\n",
3029 le32_to_cpu(indication->u.radio_status));
3030 return;
3031
3032 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3033 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3034 le32_to_cpu(indication->u.media_stream_mode));
3035 return;
3036
3037 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3038 rndis_wlan_auth_indication(usbdev, indication, len);
3039 return;
3040
3041 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3042 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3043 return;
3044
3045 default:
3046 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3047 le32_to_cpu(indication->status_type));
3048 }
3049}
3050
3051static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3052{
3053 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3054 struct rndis_indicate *msg = ind;
3055
3056 switch (le32_to_cpu(msg->status)) {
3057 case RNDIS_STATUS_MEDIA_CONNECT:
3058 if (priv->current_command_oid == RNDIS_OID_802_11_ADD_KEY) {
3059 /* RNDIS_OID_802_11_ADD_KEY causes sometimes extra
3060 * "media connect" indications which confuses driver
3061 * and userspace to think that device is
3062 * roaming/reassociating when it isn't.
3063 */
3064 netdev_dbg(usbdev->net, "ignored RNDIS_OID_802_11_ADD_KEY triggered 'media connect'\n");
3065 return;
3066 }
3067
3068 usbnet_pause_rx(usbdev);
3069
3070 netdev_info(usbdev->net, "media connect\n");
3071
3072 /* queue work to avoid recursive calls into rndis_command */
3073 set_bit(WORK_LINK_UP, &priv->work_pending);
3074 queue_work(priv->workqueue, &priv->work);
3075 break;
3076
3077 case RNDIS_STATUS_MEDIA_DISCONNECT:
3078 netdev_info(usbdev->net, "media disconnect\n");
3079
3080 /* queue work to avoid recursive calls into rndis_command */
3081 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3082 queue_work(priv->workqueue, &priv->work);
3083 break;
3084
3085 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3086 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3087 break;
3088
3089 default:
3090 netdev_info(usbdev->net, "indication: 0x%08x\n",
3091 le32_to_cpu(msg->status));
3092 break;
3093 }
3094}
3095
3096static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3097{
3098 struct {
3099 __le32 num_items;
3100 __le32 items[8];
3101 } networks_supported;
3102 struct ndis_80211_capability caps;
3103 int len, retval, i, n;
3104 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3105
3106 /* determine supported modes */
3107 len = sizeof(networks_supported);
3108 retval = rndis_query_oid(usbdev,
3109 RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED,
3110 &networks_supported, &len);
3111 if (!retval) {
3112 n = le32_to_cpu(networks_supported.num_items);
3113 if (n > 8)
3114 n = 8;
3115 for (i = 0; i < n; i++) {
3116 switch (le32_to_cpu(networks_supported.items[i])) {
3117 case NDIS_80211_TYPE_FREQ_HOP:
3118 case NDIS_80211_TYPE_DIRECT_SEQ:
3119 priv->caps |= CAP_MODE_80211B;
3120 break;
3121 case NDIS_80211_TYPE_OFDM_A:
3122 priv->caps |= CAP_MODE_80211A;
3123 break;
3124 case NDIS_80211_TYPE_OFDM_G:
3125 priv->caps |= CAP_MODE_80211G;
3126 break;
3127 }
3128 }
3129 }
3130
3131 /* get device 802.11 capabilities, number of PMKIDs */
3132 len = sizeof(caps);
3133 retval = rndis_query_oid(usbdev,
3134 RNDIS_OID_802_11_CAPABILITY,
3135 &caps, &len);
3136 if (!retval) {
3137 netdev_dbg(usbdev->net, "RNDIS_OID_802_11_CAPABILITY -> len %d, "
3138 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3139 le32_to_cpu(caps.length),
3140 le32_to_cpu(caps.version),
3141 le32_to_cpu(caps.num_pmkids),
3142 le32_to_cpu(caps.num_auth_encr_pair));
3143 wiphy->max_num_pmkids = le32_to_cpu(caps.num_pmkids);
3144 } else
3145 wiphy->max_num_pmkids = 0;
3146
3147 return retval;
3148}
3149
3150static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3151{
3152 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3153 enum nl80211_cqm_rssi_threshold_event event;
3154 int thold, hyst, last_event;
3155
3156 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3157 return;
3158 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3159 return;
3160
3161 last_event = priv->last_cqm_event_rssi;
3162 thold = priv->cqm_rssi_thold;
3163 hyst = priv->cqm_rssi_hyst;
3164
3165 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3166 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3167 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3168 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3169 else
3170 return;
3171
3172 priv->last_cqm_event_rssi = rssi;
3173 cfg80211_cqm_rssi_notify(usbdev->net, event, rssi, GFP_KERNEL);
3174}
3175
3176#define DEVICE_POLLER_JIFFIES (HZ)
3177static void rndis_device_poller(struct work_struct *work)
3178{
3179 struct rndis_wlan_private *priv =
3180 container_of(work, struct rndis_wlan_private,
3181 dev_poller_work.work);
3182 struct usbnet *usbdev = priv->usbdev;
3183 __le32 rssi, tmp;
3184 int len, ret, j;
3185 int update_jiffies = DEVICE_POLLER_JIFFIES;
3186 void *buf;
3187
3188 /* Only check/do workaround when connected. Calling is_associated()
3189 * also polls device with rndis_command() and catches for media link
3190 * indications.
3191 */
3192 if (!is_associated(usbdev)) {
3193 /* Workaround bad scanning in BCM4320a devices with active
3194 * background scanning when not associated.
3195 */
3196 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3197 !priv->scan_request) {
3198 /* Get previous scan results */
3199 rndis_check_bssid_list(usbdev, NULL, NULL);
3200
3201 /* Initiate new scan */
3202 rndis_start_bssid_list_scan(usbdev);
3203 }
3204
3205 goto end;
3206 }
3207
3208 len = sizeof(rssi);
3209 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
3210 &rssi, &len);
3211 if (ret == 0) {
3212 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3213 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3214 }
3215
3216 netdev_dbg(usbdev->net, "dev-poller: RNDIS_OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3217 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3218
3219 /* Workaround transfer stalls on poor quality links.
3220 * TODO: find right way to fix these stalls (as stalls do not happen
3221 * with ndiswrapper/windows driver). */
3222 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3223 /* Decrease stats worker interval to catch stalls.
3224 * faster. Faster than 400-500ms causes packet loss,
3225 * Slower doesn't catch stalls fast enough.
3226 */
3227 j = msecs_to_jiffies(priv->param_workaround_interval);
3228 if (j > DEVICE_POLLER_JIFFIES)
3229 j = DEVICE_POLLER_JIFFIES;
3230 else if (j <= 0)
3231 j = 1;
3232 update_jiffies = j;
3233
3234 /* Send scan OID. Use of both OIDs is required to get device
3235 * working.
3236 */
3237 tmp = cpu_to_le32(1);
3238 rndis_set_oid(usbdev,
3239 RNDIS_OID_802_11_BSSID_LIST_SCAN,
3240 &tmp, sizeof(tmp));
3241
3242 len = CONTROL_BUFFER_SIZE;
3243 buf = kmalloc(len, GFP_KERNEL);
3244 if (!buf)
3245 goto end;
3246
3247 rndis_query_oid(usbdev,
3248 RNDIS_OID_802_11_BSSID_LIST,
3249 buf, &len);
3250 kfree(buf);
3251 }
3252
3253end:
3254 if (update_jiffies >= HZ)
3255 update_jiffies = round_jiffies_relative(update_jiffies);
3256 else {
3257 j = round_jiffies_relative(update_jiffies);
3258 if (abs(j - update_jiffies) <= 10)
3259 update_jiffies = j;
3260 }
3261
3262 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3263 update_jiffies);
3264}
3265
3266/*
3267 * driver/device initialization
3268 */
3269static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3270{
3271 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3272
3273 priv->device_type = device_type;
3274
3275 priv->param_country[0] = modparam_country[0];
3276 priv->param_country[1] = modparam_country[1];
3277 priv->param_country[2] = 0;
3278 priv->param_frameburst = modparam_frameburst;
3279 priv->param_afterburner = modparam_afterburner;
3280 priv->param_power_save = modparam_power_save;
3281 priv->param_power_output = modparam_power_output;
3282 priv->param_roamtrigger = modparam_roamtrigger;
3283 priv->param_roamdelta = modparam_roamdelta;
3284
3285 priv->param_country[0] = toupper(priv->param_country[0]);
3286 priv->param_country[1] = toupper(priv->param_country[1]);
3287 /* doesn't support EU as country code, use FI instead */
3288 if (!strcmp(priv->param_country, "EU"))
3289 strcpy(priv->param_country, "FI");
3290
3291 if (priv->param_power_save < 0)
3292 priv->param_power_save = 0;
3293 else if (priv->param_power_save > 2)
3294 priv->param_power_save = 2;
3295
3296 if (priv->param_power_output < 0)
3297 priv->param_power_output = 0;
3298 else if (priv->param_power_output > 3)
3299 priv->param_power_output = 3;
3300
3301 if (priv->param_roamtrigger < -80)
3302 priv->param_roamtrigger = -80;
3303 else if (priv->param_roamtrigger > -60)
3304 priv->param_roamtrigger = -60;
3305
3306 if (priv->param_roamdelta < 0)
3307 priv->param_roamdelta = 0;
3308 else if (priv->param_roamdelta > 2)
3309 priv->param_roamdelta = 2;
3310
3311 if (modparam_workaround_interval < 0)
3312 priv->param_workaround_interval = 500;
3313 else
3314 priv->param_workaround_interval = modparam_workaround_interval;
3315}
3316
3317static int unknown_early_init(struct usbnet *usbdev)
3318{
3319 /* copy module parameters for unknown so that iwconfig reports txpower
3320 * and workaround parameter is copied to private structure correctly.
3321 */
3322 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3323
3324 /* This is unknown device, so do not try set configuration parameters.
3325 */
3326
3327 return 0;
3328}
3329
3330static int bcm4320a_early_init(struct usbnet *usbdev)
3331{
3332 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3333 * and workaround parameter is copied to private structure correctly.
3334 */
3335 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3336
3337 /* bcm4320a doesn't handle configuration parameters well. Try
3338 * set any and you get partially zeroed mac and broken device.
3339 */
3340
3341 return 0;
3342}
3343
3344static int bcm4320b_early_init(struct usbnet *usbdev)
3345{
3346 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3347 char buf[8];
3348
3349 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3350
3351 /* Early initialization settings, setting these won't have effect
3352 * if called after generic_rndis_bind().
3353 */
3354
3355 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3356 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3357 priv->param_frameburst ? "1" : "0");
3358 rndis_set_config_parameter_str(usbdev, "Afterburner",
3359 priv->param_afterburner ? "1" : "0");
3360 sprintf(buf, "%d", priv->param_power_save);
3361 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3362 sprintf(buf, "%d", priv->param_power_output);
3363 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3364 sprintf(buf, "%d", priv->param_roamtrigger);
3365 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3366 sprintf(buf, "%d", priv->param_roamdelta);
3367 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3368
3369 return 0;
3370}
3371
3372/* same as rndis_netdev_ops but with local multicast handler */
3373static const struct net_device_ops rndis_wlan_netdev_ops = {
3374 .ndo_open = usbnet_open,
3375 .ndo_stop = usbnet_stop,
3376 .ndo_start_xmit = usbnet_start_xmit,
3377 .ndo_tx_timeout = usbnet_tx_timeout,
3378 .ndo_get_stats64 = dev_get_tstats64,
3379 .ndo_set_mac_address = eth_mac_addr,
3380 .ndo_validate_addr = eth_validate_addr,
3381 .ndo_set_rx_mode = rndis_wlan_set_multicast_list,
3382};
3383
3384static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3385{
3386 struct wiphy *wiphy;
3387 struct rndis_wlan_private *priv;
3388 int retval, len;
3389 __le32 tmp;
3390
3391 /* allocate wiphy and rndis private data
3392 * NOTE: We only support a single virtual interface, so wiphy
3393 * and wireless_dev are somewhat synonymous for this device.
3394 */
3395 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3396 if (!wiphy)
3397 return -ENOMEM;
3398
3399 priv = wiphy_priv(wiphy);
3400 usbdev->net->ieee80211_ptr = &priv->wdev;
3401 priv->wdev.wiphy = wiphy;
3402 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3403
3404 /* These have to be initialized before calling generic_rndis_bind().
3405 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3406 */
3407 usbdev->driver_priv = priv;
3408 priv->usbdev = usbdev;
3409
3410 mutex_init(&priv->command_lock);
3411
3412 /* because rndis_command() sleeps we need to use workqueue */
3413 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3414 if (!priv->workqueue) {
3415 wiphy_free(wiphy);
3416 return -ENOMEM;
3417 }
3418 INIT_WORK(&priv->work, rndis_wlan_worker);
3419 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3420 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3421
3422 /* try bind rndis_host */
3423 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3424 if (retval < 0)
3425 goto fail;
3426
3427 /* generic_rndis_bind set packet filter to multicast_all+
3428 * promisc mode which doesn't work well for our devices (device
3429 * picks up rssi to closest station instead of to access point).
3430 *
3431 * rndis_host wants to avoid all OID as much as possible
3432 * so do promisc/multicast handling in rndis_wlan.
3433 */
3434 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3435
3436 tmp = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST);
3437 retval = rndis_set_oid(usbdev,
3438 RNDIS_OID_GEN_CURRENT_PACKET_FILTER,
3439 &tmp, sizeof(tmp));
3440
3441 len = sizeof(tmp);
3442 retval = rndis_query_oid(usbdev,
3443 RNDIS_OID_802_3_MAXIMUM_LIST_SIZE,
3444 &tmp, &len);
3445 priv->multicast_size = le32_to_cpu(tmp);
3446 if (retval < 0 || priv->multicast_size < 0)
3447 priv->multicast_size = 0;
3448 if (priv->multicast_size > 0)
3449 usbdev->net->flags |= IFF_MULTICAST;
3450 else
3451 usbdev->net->flags &= ~IFF_MULTICAST;
3452
3453 /* fill-out wiphy structure and register w/ cfg80211 */
3454 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3455 wiphy->privid = rndis_wiphy_privid;
3456 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3457 | BIT(NL80211_IFTYPE_ADHOC);
3458 wiphy->max_scan_ssids = 1;
3459
3460 /* TODO: fill-out band/encr information based on priv->caps */
3461 rndis_wlan_get_caps(usbdev, wiphy);
3462
3463 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3464 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3465 priv->band.channels = priv->channels;
3466 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3467 priv->band.bitrates = priv->rates;
3468 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3469 wiphy->bands[NL80211_BAND_2GHZ] = &priv->band;
3470 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3471
3472 memcpy(priv->cipher_suites, rndis_cipher_suites,
3473 sizeof(rndis_cipher_suites));
3474 wiphy->cipher_suites = priv->cipher_suites;
3475 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3476
3477 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3478
3479 if (wiphy_register(wiphy)) {
3480 retval = -ENODEV;
3481 goto fail;
3482 }
3483
3484 set_default_iw_params(usbdev);
3485
3486 priv->power_mode = -1;
3487
3488 /* set default rts/frag */
3489 rndis_set_wiphy_params(wiphy,
3490 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3491
3492 /* turn radio off on init */
3493 priv->radio_on = false;
3494 disassociate(usbdev, false);
3495 netif_carrier_off(usbdev->net);
3496
3497 return 0;
3498
3499fail:
3500 cancel_delayed_work_sync(&priv->dev_poller_work);
3501 cancel_delayed_work_sync(&priv->scan_work);
3502 cancel_work_sync(&priv->work);
3503 destroy_workqueue(priv->workqueue);
3504
3505 wiphy_free(wiphy);
3506 return retval;
3507}
3508
3509static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3510{
3511 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3512
3513 /* turn radio off */
3514 disassociate(usbdev, false);
3515
3516 cancel_delayed_work_sync(&priv->dev_poller_work);
3517 cancel_delayed_work_sync(&priv->scan_work);
3518 cancel_work_sync(&priv->work);
3519 destroy_workqueue(priv->workqueue);
3520
3521 rndis_unbind(usbdev, intf);
3522
3523 wiphy_unregister(priv->wdev.wiphy);
3524 wiphy_free(priv->wdev.wiphy);
3525}
3526
3527static int rndis_wlan_reset(struct usbnet *usbdev)
3528{
3529 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3530 int retval;
3531
3532 netdev_dbg(usbdev->net, "%s()\n", __func__);
3533
3534 retval = rndis_reset(usbdev);
3535 if (retval)
3536 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3537
3538 /* rndis_reset cleared multicast list, so restore here.
3539 (set_multicast_list() also turns on current packet filter) */
3540 set_multicast_list(usbdev);
3541
3542 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3543 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3544
3545 return deauthenticate(usbdev);
3546}
3547
3548static int rndis_wlan_stop(struct usbnet *usbdev)
3549{
3550 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3551 int retval;
3552 __le32 filter;
3553
3554 netdev_dbg(usbdev->net, "%s()\n", __func__);
3555
3556 retval = disassociate(usbdev, false);
3557
3558 priv->work_pending = 0;
3559 cancel_delayed_work_sync(&priv->dev_poller_work);
3560 cancel_delayed_work_sync(&priv->scan_work);
3561 cancel_work_sync(&priv->work);
3562 flush_workqueue(priv->workqueue);
3563
3564 if (priv->scan_request) {
3565 struct cfg80211_scan_info info = {
3566 .aborted = true,
3567 };
3568
3569 cfg80211_scan_done(priv->scan_request, &info);
3570 priv->scan_request = NULL;
3571 }
3572
3573 /* Set current packet filter zero to block receiving data packets from
3574 device. */
3575 filter = 0;
3576 rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
3577 sizeof(filter));
3578
3579 return retval;
3580}
3581
3582static const struct driver_info bcm4320b_info = {
3583 .description = "Wireless RNDIS device, BCM4320b based",
3584 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3585 FLAG_AVOID_UNLINK_URBS,
3586 .bind = rndis_wlan_bind,
3587 .unbind = rndis_wlan_unbind,
3588 .status = rndis_status,
3589 .rx_fixup = rndis_rx_fixup,
3590 .tx_fixup = rndis_tx_fixup,
3591 .reset = rndis_wlan_reset,
3592 .stop = rndis_wlan_stop,
3593 .early_init = bcm4320b_early_init,
3594 .indication = rndis_wlan_indication,
3595};
3596
3597static const struct driver_info bcm4320a_info = {
3598 .description = "Wireless RNDIS device, BCM4320a based",
3599 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3600 FLAG_AVOID_UNLINK_URBS,
3601 .bind = rndis_wlan_bind,
3602 .unbind = rndis_wlan_unbind,
3603 .status = rndis_status,
3604 .rx_fixup = rndis_rx_fixup,
3605 .tx_fixup = rndis_tx_fixup,
3606 .reset = rndis_wlan_reset,
3607 .stop = rndis_wlan_stop,
3608 .early_init = bcm4320a_early_init,
3609 .indication = rndis_wlan_indication,
3610};
3611
3612static const struct driver_info rndis_wlan_info = {
3613 .description = "Wireless RNDIS device",
3614 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3615 FLAG_AVOID_UNLINK_URBS,
3616 .bind = rndis_wlan_bind,
3617 .unbind = rndis_wlan_unbind,
3618 .status = rndis_status,
3619 .rx_fixup = rndis_rx_fixup,
3620 .tx_fixup = rndis_tx_fixup,
3621 .reset = rndis_wlan_reset,
3622 .stop = rndis_wlan_stop,
3623 .early_init = unknown_early_init,
3624 .indication = rndis_wlan_indication,
3625};
3626
3627/*-------------------------------------------------------------------------*/
3628
3629static const struct usb_device_id products [] = {
3630#define RNDIS_MASTER_INTERFACE \
3631 .bInterfaceClass = USB_CLASS_COMM, \
3632 .bInterfaceSubClass = 2 /* ACM */, \
3633 .bInterfaceProtocol = 0x0ff
3634
3635/* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3636 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3637 */
3638{
3639 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3640 | USB_DEVICE_ID_MATCH_DEVICE,
3641 .idVendor = 0x0411,
3642 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3643 RNDIS_MASTER_INTERFACE,
3644 .driver_info = (unsigned long) &bcm4320b_info,
3645}, {
3646 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3647 | USB_DEVICE_ID_MATCH_DEVICE,
3648 .idVendor = 0x0baf,
3649 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3650 RNDIS_MASTER_INTERFACE,
3651 .driver_info = (unsigned long) &bcm4320b_info,
3652}, {
3653 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3654 | USB_DEVICE_ID_MATCH_DEVICE,
3655 .idVendor = 0x050d,
3656 .idProduct = 0x011b, /* Belkin F5D7051 */
3657 RNDIS_MASTER_INTERFACE,
3658 .driver_info = (unsigned long) &bcm4320b_info,
3659}, {
3660 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3661 | USB_DEVICE_ID_MATCH_DEVICE,
3662 .idVendor = 0x1799, /* Belkin has two vendor ids */
3663 .idProduct = 0x011b, /* Belkin F5D7051 */
3664 RNDIS_MASTER_INTERFACE,
3665 .driver_info = (unsigned long) &bcm4320b_info,
3666}, {
3667 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3668 | USB_DEVICE_ID_MATCH_DEVICE,
3669 .idVendor = 0x13b1,
3670 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3671 RNDIS_MASTER_INTERFACE,
3672 .driver_info = (unsigned long) &bcm4320b_info,
3673}, {
3674 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3675 | USB_DEVICE_ID_MATCH_DEVICE,
3676 .idVendor = 0x13b1,
3677 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3678 RNDIS_MASTER_INTERFACE,
3679 .driver_info = (unsigned long) &bcm4320b_info,
3680}, {
3681 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3682 | USB_DEVICE_ID_MATCH_DEVICE,
3683 .idVendor = 0x0b05,
3684 .idProduct = 0x1717, /* Asus WL169gE */
3685 RNDIS_MASTER_INTERFACE,
3686 .driver_info = (unsigned long) &bcm4320b_info,
3687}, {
3688 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3689 | USB_DEVICE_ID_MATCH_DEVICE,
3690 .idVendor = 0x0a5c,
3691 .idProduct = 0xd11b, /* Eminent EM4045 */
3692 RNDIS_MASTER_INTERFACE,
3693 .driver_info = (unsigned long) &bcm4320b_info,
3694}, {
3695 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3696 | USB_DEVICE_ID_MATCH_DEVICE,
3697 .idVendor = 0x1690,
3698 .idProduct = 0x0715, /* BT Voyager 1055 */
3699 RNDIS_MASTER_INTERFACE,
3700 .driver_info = (unsigned long) &bcm4320b_info,
3701},
3702/* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3703 * parameters available, hardware probably contain older firmware version with
3704 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3705 */
3706{
3707 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3708 | USB_DEVICE_ID_MATCH_DEVICE,
3709 .idVendor = 0x13b1,
3710 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3711 RNDIS_MASTER_INTERFACE,
3712 .driver_info = (unsigned long) &bcm4320a_info,
3713}, {
3714 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3715 | USB_DEVICE_ID_MATCH_DEVICE,
3716 .idVendor = 0x0baf,
3717 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3718 RNDIS_MASTER_INTERFACE,
3719 .driver_info = (unsigned long) &bcm4320a_info,
3720}, {
3721 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3722 | USB_DEVICE_ID_MATCH_DEVICE,
3723 .idVendor = 0x0411,
3724 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3725 RNDIS_MASTER_INTERFACE,
3726 .driver_info = (unsigned long) &bcm4320a_info,
3727},
3728/* Generic Wireless RNDIS devices that we don't have exact
3729 * idVendor/idProduct/chip yet.
3730 */
3731{
3732 /* RNDIS is MSFT's un-official variant of CDC ACM */
3733 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3734 .driver_info = (unsigned long) &rndis_wlan_info,
3735}, {
3736 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3737 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3738 .driver_info = (unsigned long) &rndis_wlan_info,
3739},
3740 { }, // END
3741};
3742MODULE_DEVICE_TABLE(usb, products);
3743
3744static struct usb_driver rndis_wlan_driver = {
3745 .name = "rndis_wlan",
3746 .id_table = products,
3747 .probe = usbnet_probe,
3748 .disconnect = usbnet_disconnect,
3749 .suspend = usbnet_suspend,
3750 .resume = usbnet_resume,
3751 .disable_hub_initiated_lpm = 1,
3752};
3753
3754module_usb_driver(rndis_wlan_driver);
3755
3756MODULE_AUTHOR("Bjorge Dijkstra");
3757MODULE_AUTHOR("Jussi Kivilinna");
3758MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3759MODULE_LICENSE("GPL");
3760