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29#include <linux/module.h>
30#include <linux/init.h>
31#include <linux/netdevice.h>
32#include <linux/etherdevice.h>
33#include <linux/ethtool.h>
34#include <linux/workqueue.h>
35#include <linux/mutex.h>
36#include <linux/mii.h>
37#include <linux/usb.h>
38#include <linux/usb/cdc.h>
39#include <linux/wireless.h>
40#include <linux/ieee80211.h>
41#include <linux/if_arp.h>
42#include <linux/ctype.h>
43#include <linux/spinlock.h>
44#include <net/iw_handler.h>
45#include <net/cfg80211.h>
46#include <linux/usb/usbnet.h>
47#include <linux/usb/rndis_host.h>
48
49
50
51static char modparam_country[4] = "EU";
52module_param_string(country, modparam_country, 4, 0444);
53MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
54
55static int modparam_frameburst = 1;
56module_param_named(frameburst, modparam_frameburst, int, 0444);
57MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
58
59static int modparam_afterburner = 0;
60module_param_named(afterburner, modparam_afterburner, int, 0444);
61MODULE_PARM_DESC(afterburner,
62 "enable afterburner aka '125 High Speed Mode' (default: off)");
63
64static int modparam_power_save = 0;
65module_param_named(power_save, modparam_power_save, int, 0444);
66MODULE_PARM_DESC(power_save,
67 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
68
69static int modparam_power_output = 3;
70module_param_named(power_output, modparam_power_output, int, 0444);
71MODULE_PARM_DESC(power_output,
72 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
73
74static int modparam_roamtrigger = -70;
75module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
76MODULE_PARM_DESC(roamtrigger,
77 "set roaming dBm trigger: -80=optimize for distance, "
78 "-60=bandwidth (default: -70)");
79
80static int modparam_roamdelta = 1;
81module_param_named(roamdelta, modparam_roamdelta, int, 0444);
82MODULE_PARM_DESC(roamdelta,
83 "set roaming tendency: 0=aggressive, 1=moderate, "
84 "2=conservative (default: moderate)");
85
86static int modparam_workaround_interval = 500;
87module_param_named(workaround_interval, modparam_workaround_interval,
88 int, 0444);
89MODULE_PARM_DESC(workaround_interval,
90 "set stall workaround interval in msecs (default: 500)");
91
92
93
94#define OID_GEN_LINK_SPEED cpu_to_le32(0x00010107)
95#define OID_GEN_RNDIS_CONFIG_PARAMETER cpu_to_le32(0x0001021b)
96
97#define OID_GEN_XMIT_OK cpu_to_le32(0x00020101)
98#define OID_GEN_RCV_OK cpu_to_le32(0x00020102)
99#define OID_GEN_XMIT_ERROR cpu_to_le32(0x00020103)
100#define OID_GEN_RCV_ERROR cpu_to_le32(0x00020104)
101#define OID_GEN_RCV_NO_BUFFER cpu_to_le32(0x00020105)
102
103#define OID_802_3_CURRENT_ADDRESS cpu_to_le32(0x01010102)
104#define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103)
105#define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104)
106
107#define OID_802_11_BSSID cpu_to_le32(0x0d010101)
108#define OID_802_11_SSID cpu_to_le32(0x0d010102)
109#define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108)
110#define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113)
111#define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114)
112#define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115)
113#define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118)
114#define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119)
115#define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a)
116#define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b)
117#define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d)
118#define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e)
119#define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f)
120#define OID_802_11_PMKID cpu_to_le32(0x0d010123)
121#define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
122#define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
123#define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
124#define OID_802_11_RSSI cpu_to_le32(0x0d010206)
125#define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
126#define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
127#define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
128#define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
129#define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
130#define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
131
132
133
134#define WL_NOISE -96
135#define WL_SIGMAX -32
136
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144
145
146#define BCM4320_DEFAULT_TXPOWER_DBM_100 13
147#define BCM4320_DEFAULT_TXPOWER_DBM_75 12
148#define BCM4320_DEFAULT_TXPOWER_DBM_50 10
149#define BCM4320_DEFAULT_TXPOWER_DBM_25 7
150
151
152
153#define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
154#define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
155
156
157
158
159
160#define NDIS_802_11_LENGTH_SSID 32
161#define NDIS_802_11_LENGTH_RATES 8
162#define NDIS_802_11_LENGTH_RATES_EX 16
163
164enum ndis_80211_net_type {
165 NDIS_80211_TYPE_FREQ_HOP,
166 NDIS_80211_TYPE_DIRECT_SEQ,
167 NDIS_80211_TYPE_OFDM_A,
168 NDIS_80211_TYPE_OFDM_G
169};
170
171enum ndis_80211_net_infra {
172 NDIS_80211_INFRA_ADHOC,
173 NDIS_80211_INFRA_INFRA,
174 NDIS_80211_INFRA_AUTO_UNKNOWN
175};
176
177enum ndis_80211_auth_mode {
178 NDIS_80211_AUTH_OPEN,
179 NDIS_80211_AUTH_SHARED,
180 NDIS_80211_AUTH_AUTO_SWITCH,
181 NDIS_80211_AUTH_WPA,
182 NDIS_80211_AUTH_WPA_PSK,
183 NDIS_80211_AUTH_WPA_NONE,
184 NDIS_80211_AUTH_WPA2,
185 NDIS_80211_AUTH_WPA2_PSK
186};
187
188enum ndis_80211_encr_status {
189 NDIS_80211_ENCR_WEP_ENABLED,
190 NDIS_80211_ENCR_DISABLED,
191 NDIS_80211_ENCR_WEP_KEY_ABSENT,
192 NDIS_80211_ENCR_NOT_SUPPORTED,
193 NDIS_80211_ENCR_TKIP_ENABLED,
194 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
195 NDIS_80211_ENCR_CCMP_ENABLED,
196 NDIS_80211_ENCR_CCMP_KEY_ABSENT
197};
198
199enum ndis_80211_priv_filter {
200 NDIS_80211_PRIV_ACCEPT_ALL,
201 NDIS_80211_PRIV_8021X_WEP
202};
203
204enum ndis_80211_status_type {
205 NDIS_80211_STATUSTYPE_AUTHENTICATION,
206 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
207 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
208 NDIS_80211_STATUSTYPE_RADIOSTATE,
209};
210
211enum ndis_80211_media_stream_mode {
212 NDIS_80211_MEDIA_STREAM_OFF,
213 NDIS_80211_MEDIA_STREAM_ON
214};
215
216enum ndis_80211_radio_status {
217 NDIS_80211_RADIO_STATUS_ON,
218 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
219 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
220};
221
222enum ndis_80211_addkey_bits {
223 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
224 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
225 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
226 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
227};
228
229enum ndis_80211_addwep_bits {
230 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
231 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
232};
233
234struct ndis_80211_auth_request {
235 __le32 length;
236 u8 bssid[6];
237 u8 padding[2];
238 __le32 flags;
239} __attribute__((packed));
240
241struct ndis_80211_pmkid_candidate {
242 u8 bssid[6];
243 u8 padding[2];
244 __le32 flags;
245} __attribute__((packed));
246
247struct ndis_80211_pmkid_cand_list {
248 __le32 version;
249 __le32 num_candidates;
250 struct ndis_80211_pmkid_candidate candidate_list[0];
251} __attribute__((packed));
252
253struct ndis_80211_status_indication {
254 __le32 status_type;
255 union {
256 __le32 media_stream_mode;
257 __le32 radio_status;
258 struct ndis_80211_auth_request auth_request[0];
259 struct ndis_80211_pmkid_cand_list cand_list;
260 } u;
261} __attribute__((packed));
262
263struct ndis_80211_ssid {
264 __le32 length;
265 u8 essid[NDIS_802_11_LENGTH_SSID];
266} __attribute__((packed));
267
268struct ndis_80211_conf_freq_hop {
269 __le32 length;
270 __le32 hop_pattern;
271 __le32 hop_set;
272 __le32 dwell_time;
273} __attribute__((packed));
274
275struct ndis_80211_conf {
276 __le32 length;
277 __le32 beacon_period;
278 __le32 atim_window;
279 __le32 ds_config;
280 struct ndis_80211_conf_freq_hop fh_config;
281} __attribute__((packed));
282
283struct ndis_80211_bssid_ex {
284 __le32 length;
285 u8 mac[6];
286 u8 padding[2];
287 struct ndis_80211_ssid ssid;
288 __le32 privacy;
289 __le32 rssi;
290 __le32 net_type;
291 struct ndis_80211_conf config;
292 __le32 net_infra;
293 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
294 __le32 ie_length;
295 u8 ies[0];
296} __attribute__((packed));
297
298struct ndis_80211_bssid_list_ex {
299 __le32 num_items;
300 struct ndis_80211_bssid_ex bssid[0];
301} __attribute__((packed));
302
303struct ndis_80211_fixed_ies {
304 u8 timestamp[8];
305 __le16 beacon_interval;
306 __le16 capabilities;
307} __attribute__((packed));
308
309struct ndis_80211_wep_key {
310 __le32 size;
311 __le32 index;
312 __le32 length;
313 u8 material[32];
314} __attribute__((packed));
315
316struct ndis_80211_key {
317 __le32 size;
318 __le32 index;
319 __le32 length;
320 u8 bssid[6];
321 u8 padding[6];
322 u8 rsc[8];
323 u8 material[32];
324} __attribute__((packed));
325
326struct ndis_80211_remove_key {
327 __le32 size;
328 __le32 index;
329 u8 bssid[6];
330 u8 padding[2];
331} __attribute__((packed));
332
333struct ndis_config_param {
334 __le32 name_offs;
335 __le32 name_length;
336 __le32 type;
337 __le32 value_offs;
338 __le32 value_length;
339} __attribute__((packed));
340
341struct ndis_80211_assoc_info {
342 __le32 length;
343 __le16 req_ies;
344 struct req_ie {
345 __le16 capa;
346 __le16 listen_interval;
347 u8 cur_ap_address[6];
348 } req_ie;
349 __le32 req_ie_length;
350 __le32 offset_req_ies;
351 __le16 resp_ies;
352 struct resp_ie {
353 __le16 capa;
354 __le16 status_code;
355 __le16 assoc_id;
356 } resp_ie;
357 __le32 resp_ie_length;
358 __le32 offset_resp_ies;
359} __attribute__((packed));
360
361
362
363
364#define NET_TYPE_11FB 0
365
366#define CAP_MODE_80211A 1
367#define CAP_MODE_80211B 2
368#define CAP_MODE_80211G 4
369#define CAP_MODE_MASK 7
370
371#define WORK_LINK_UP (1<<0)
372#define WORK_LINK_DOWN (1<<1)
373#define WORK_SET_MULTICAST_LIST (1<<2)
374
375#define RNDIS_WLAN_ALG_NONE 0
376#define RNDIS_WLAN_ALG_WEP (1<<0)
377#define RNDIS_WLAN_ALG_TKIP (1<<1)
378#define RNDIS_WLAN_ALG_CCMP (1<<2)
379
380#define RNDIS_WLAN_KEY_MGMT_NONE 0
381#define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
382#define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
383
384#define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
385
386static const struct ieee80211_channel rndis_channels[] = {
387 { .center_freq = 2412 },
388 { .center_freq = 2417 },
389 { .center_freq = 2422 },
390 { .center_freq = 2427 },
391 { .center_freq = 2432 },
392 { .center_freq = 2437 },
393 { .center_freq = 2442 },
394 { .center_freq = 2447 },
395 { .center_freq = 2452 },
396 { .center_freq = 2457 },
397 { .center_freq = 2462 },
398 { .center_freq = 2467 },
399 { .center_freq = 2472 },
400 { .center_freq = 2484 },
401};
402
403static const struct ieee80211_rate rndis_rates[] = {
404 { .bitrate = 10 },
405 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
406 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
407 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
408 { .bitrate = 60 },
409 { .bitrate = 90 },
410 { .bitrate = 120 },
411 { .bitrate = 180 },
412 { .bitrate = 240 },
413 { .bitrate = 360 },
414 { .bitrate = 480 },
415 { .bitrate = 540 }
416};
417
418static const u32 rndis_cipher_suites[] = {
419 WLAN_CIPHER_SUITE_WEP40,
420 WLAN_CIPHER_SUITE_WEP104,
421 WLAN_CIPHER_SUITE_TKIP,
422 WLAN_CIPHER_SUITE_CCMP,
423};
424
425struct rndis_wlan_encr_key {
426 int len;
427 u32 cipher;
428 u8 material[32];
429 u8 bssid[ETH_ALEN];
430 bool pairwise;
431 bool tx_key;
432};
433
434
435struct rndis_wlan_private {
436 struct usbnet *usbdev;
437
438 struct wireless_dev wdev;
439
440 struct cfg80211_scan_request *scan_request;
441
442 struct workqueue_struct *workqueue;
443 struct delayed_work dev_poller_work;
444 struct delayed_work scan_work;
445 struct work_struct work;
446 struct mutex command_lock;
447 unsigned long work_pending;
448 int last_qual;
449
450 struct ieee80211_supported_band band;
451 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
452 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
453 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
454
455 int caps;
456 int multicast_size;
457
458
459 char param_country[4];
460 int param_frameburst;
461 int param_afterburner;
462 int param_power_save;
463 int param_power_output;
464 int param_roamtrigger;
465 int param_roamdelta;
466 u32 param_workaround_interval;
467
468
469 bool radio_on;
470 int infra_mode;
471 bool connected;
472 u8 bssid[ETH_ALEN];
473 struct ndis_80211_ssid essid;
474 __le32 current_command_oid;
475
476
477 int encr_tx_key_index;
478 struct rndis_wlan_encr_key encr_keys[4];
479 enum nl80211_auth_type wpa_auth_type;
480 int wpa_version;
481 int wpa_keymgmt;
482 int wpa_ie_len;
483 u8 *wpa_ie;
484 int wpa_cipher_pair;
485 int wpa_cipher_group;
486
487 u8 command_buffer[COMMAND_BUFFER_SIZE];
488};
489
490
491
492
493static int rndis_change_virtual_intf(struct wiphy *wiphy,
494 struct net_device *dev,
495 enum nl80211_iftype type, u32 *flags,
496 struct vif_params *params);
497
498static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
499 struct cfg80211_scan_request *request);
500
501static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
502
503static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
504 int dbm);
505static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
506
507static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
508 struct cfg80211_connect_params *sme);
509
510static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
511 u16 reason_code);
512
513static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
514 struct cfg80211_ibss_params *params);
515
516static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
517
518static int rndis_set_channel(struct wiphy *wiphy,
519 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
520
521static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
522 u8 key_index, const u8 *mac_addr,
523 struct key_params *params);
524
525static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
526 u8 key_index, const u8 *mac_addr);
527
528static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
529 u8 key_index);
530
531static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
532 u8 *mac, struct station_info *sinfo);
533
534static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
535 int idx, u8 *mac, struct station_info *sinfo);
536
537static struct cfg80211_ops rndis_config_ops = {
538 .change_virtual_intf = rndis_change_virtual_intf,
539 .scan = rndis_scan,
540 .set_wiphy_params = rndis_set_wiphy_params,
541 .set_tx_power = rndis_set_tx_power,
542 .get_tx_power = rndis_get_tx_power,
543 .connect = rndis_connect,
544 .disconnect = rndis_disconnect,
545 .join_ibss = rndis_join_ibss,
546 .leave_ibss = rndis_leave_ibss,
547 .set_channel = rndis_set_channel,
548 .add_key = rndis_add_key,
549 .del_key = rndis_del_key,
550 .set_default_key = rndis_set_default_key,
551 .get_station = rndis_get_station,
552 .dump_station = rndis_dump_station,
553};
554
555static void *rndis_wiphy_privid = &rndis_wiphy_privid;
556
557
558static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
559{
560 return (struct rndis_wlan_private *)dev->driver_priv;
561}
562
563static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
564{
565 switch (priv->param_power_output) {
566 default:
567 case 3:
568 return BCM4320_DEFAULT_TXPOWER_DBM_100;
569 case 2:
570 return BCM4320_DEFAULT_TXPOWER_DBM_75;
571 case 1:
572 return BCM4320_DEFAULT_TXPOWER_DBM_50;
573 case 0:
574 return BCM4320_DEFAULT_TXPOWER_DBM_25;
575 }
576}
577
578static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
579{
580 int cipher = priv->encr_keys[idx].cipher;
581
582 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
583 cipher == WLAN_CIPHER_SUITE_TKIP);
584}
585
586static int rndis_cipher_to_alg(u32 cipher)
587{
588 switch (cipher) {
589 default:
590 return RNDIS_WLAN_ALG_NONE;
591 case WLAN_CIPHER_SUITE_WEP40:
592 case WLAN_CIPHER_SUITE_WEP104:
593 return RNDIS_WLAN_ALG_WEP;
594 case WLAN_CIPHER_SUITE_TKIP:
595 return RNDIS_WLAN_ALG_TKIP;
596 case WLAN_CIPHER_SUITE_CCMP:
597 return RNDIS_WLAN_ALG_CCMP;
598 }
599}
600
601static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
602{
603 switch (akm_suite) {
604 default:
605 return RNDIS_WLAN_KEY_MGMT_NONE;
606 case WLAN_AKM_SUITE_8021X:
607 return RNDIS_WLAN_KEY_MGMT_802_1X;
608 case WLAN_AKM_SUITE_PSK:
609 return RNDIS_WLAN_KEY_MGMT_PSK;
610 }
611}
612
613#ifdef DEBUG
614static const char *oid_to_string(__le32 oid)
615{
616 switch (oid) {
617#define OID_STR(oid) case oid: return(#oid)
618
619 OID_STR(OID_802_3_PERMANENT_ADDRESS);
620 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
621 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
622 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
623
624
625 OID_STR(OID_GEN_LINK_SPEED);
626 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
627
628 OID_STR(OID_GEN_XMIT_OK);
629 OID_STR(OID_GEN_RCV_OK);
630 OID_STR(OID_GEN_XMIT_ERROR);
631 OID_STR(OID_GEN_RCV_ERROR);
632 OID_STR(OID_GEN_RCV_NO_BUFFER);
633
634 OID_STR(OID_802_3_CURRENT_ADDRESS);
635 OID_STR(OID_802_3_MULTICAST_LIST);
636 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
637
638 OID_STR(OID_802_11_BSSID);
639 OID_STR(OID_802_11_SSID);
640 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
641 OID_STR(OID_802_11_ADD_WEP);
642 OID_STR(OID_802_11_REMOVE_WEP);
643 OID_STR(OID_802_11_DISASSOCIATE);
644 OID_STR(OID_802_11_AUTHENTICATION_MODE);
645 OID_STR(OID_802_11_PRIVACY_FILTER);
646 OID_STR(OID_802_11_BSSID_LIST_SCAN);
647 OID_STR(OID_802_11_ENCRYPTION_STATUS);
648 OID_STR(OID_802_11_ADD_KEY);
649 OID_STR(OID_802_11_REMOVE_KEY);
650 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
651 OID_STR(OID_802_11_PMKID);
652 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
653 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
654 OID_STR(OID_802_11_TX_POWER_LEVEL);
655 OID_STR(OID_802_11_RSSI);
656 OID_STR(OID_802_11_RSSI_TRIGGER);
657 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
658 OID_STR(OID_802_11_RTS_THRESHOLD);
659 OID_STR(OID_802_11_SUPPORTED_RATES);
660 OID_STR(OID_802_11_CONFIGURATION);
661 OID_STR(OID_802_11_BSSID_LIST);
662#undef OID_STR
663 }
664
665 return "?";
666}
667#else
668static const char *oid_to_string(__le32 oid)
669{
670 return "?";
671}
672#endif
673
674
675static int rndis_error_status(__le32 rndis_status)
676{
677 int ret = -EINVAL;
678 switch (rndis_status) {
679 case RNDIS_STATUS_SUCCESS:
680 ret = 0;
681 break;
682 case RNDIS_STATUS_FAILURE:
683 case RNDIS_STATUS_INVALID_DATA:
684 ret = -EINVAL;
685 break;
686 case RNDIS_STATUS_NOT_SUPPORTED:
687 ret = -EOPNOTSUPP;
688 break;
689 case RNDIS_STATUS_ADAPTER_NOT_READY:
690 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
691 ret = -EBUSY;
692 break;
693 }
694 return ret;
695}
696
697static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
698{
699 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
700 union {
701 void *buf;
702 struct rndis_msg_hdr *header;
703 struct rndis_query *get;
704 struct rndis_query_c *get_c;
705 } u;
706 int ret, buflen;
707
708 buflen = *len + sizeof(*u.get);
709 if (buflen < CONTROL_BUFFER_SIZE)
710 buflen = CONTROL_BUFFER_SIZE;
711
712 if (buflen > COMMAND_BUFFER_SIZE) {
713 u.buf = kmalloc(buflen, GFP_KERNEL);
714 if (!u.buf)
715 return -ENOMEM;
716 } else {
717 u.buf = priv->command_buffer;
718 }
719
720 mutex_lock(&priv->command_lock);
721
722 memset(u.get, 0, sizeof *u.get);
723 u.get->msg_type = RNDIS_MSG_QUERY;
724 u.get->msg_len = cpu_to_le32(sizeof *u.get);
725 u.get->oid = oid;
726
727 priv->current_command_oid = oid;
728 ret = rndis_command(dev, u.header, buflen);
729 priv->current_command_oid = 0;
730 if (ret < 0)
731 devdbg(dev, "rndis_query_oid(%s): rndis_command() failed, %d "
732 "(%08x)", oid_to_string(oid), ret,
733 le32_to_cpu(u.get_c->status));
734
735 if (ret == 0) {
736 ret = le32_to_cpu(u.get_c->len);
737 if (ret > *len)
738 *len = ret;
739 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
740 ret = rndis_error_status(u.get_c->status);
741
742 if (ret < 0)
743 devdbg(dev, "rndis_query_oid(%s): device returned "
744 "error, 0x%08x (%d)", oid_to_string(oid),
745 le32_to_cpu(u.get_c->status), ret);
746 }
747
748 mutex_unlock(&priv->command_lock);
749
750 if (u.buf != priv->command_buffer)
751 kfree(u.buf);
752 return ret;
753}
754
755static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
756{
757 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
758 union {
759 void *buf;
760 struct rndis_msg_hdr *header;
761 struct rndis_set *set;
762 struct rndis_set_c *set_c;
763 } u;
764 int ret, buflen;
765
766 buflen = len + sizeof(*u.set);
767 if (buflen < CONTROL_BUFFER_SIZE)
768 buflen = CONTROL_BUFFER_SIZE;
769
770 if (buflen > COMMAND_BUFFER_SIZE) {
771 u.buf = kmalloc(buflen, GFP_KERNEL);
772 if (!u.buf)
773 return -ENOMEM;
774 } else {
775 u.buf = priv->command_buffer;
776 }
777
778 mutex_lock(&priv->command_lock);
779
780 memset(u.set, 0, sizeof *u.set);
781 u.set->msg_type = RNDIS_MSG_SET;
782 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
783 u.set->oid = oid;
784 u.set->len = cpu_to_le32(len);
785 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
786 u.set->handle = cpu_to_le32(0);
787 memcpy(u.buf + sizeof(*u.set), data, len);
788
789 priv->current_command_oid = oid;
790 ret = rndis_command(dev, u.header, buflen);
791 priv->current_command_oid = 0;
792 if (ret < 0)
793 devdbg(dev, "rndis_set_oid(%s): rndis_command() failed, %d "
794 "(%08x)", oid_to_string(oid), ret,
795 le32_to_cpu(u.set_c->status));
796
797 if (ret == 0) {
798 ret = rndis_error_status(u.set_c->status);
799
800 if (ret < 0)
801 devdbg(dev, "rndis_set_oid(%s): device returned error, "
802 "0x%08x (%d)", oid_to_string(oid),
803 le32_to_cpu(u.set_c->status), ret);
804 }
805
806 mutex_unlock(&priv->command_lock);
807
808 if (u.buf != priv->command_buffer)
809 kfree(u.buf);
810 return ret;
811}
812
813static int rndis_reset(struct usbnet *usbdev)
814{
815 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
816 struct rndis_reset *reset;
817 int ret;
818
819 mutex_lock(&priv->command_lock);
820
821 reset = (void *)priv->command_buffer;
822 memset(reset, 0, sizeof(*reset));
823 reset->msg_type = RNDIS_MSG_RESET;
824 reset->msg_len = cpu_to_le32(sizeof(*reset));
825 priv->current_command_oid = 0;
826 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
827
828 mutex_unlock(&priv->command_lock);
829
830 if (ret < 0)
831 return ret;
832 return 0;
833}
834
835
836
837
838
839
840static int rndis_set_config_parameter(struct usbnet *dev, char *param,
841 int value_type, void *value)
842{
843 struct ndis_config_param *infobuf;
844 int value_len, info_len, param_len, ret, i;
845 __le16 *unibuf;
846 __le32 *dst_value;
847
848 if (value_type == 0)
849 value_len = sizeof(__le32);
850 else if (value_type == 2)
851 value_len = strlen(value) * sizeof(__le16);
852 else
853 return -EINVAL;
854
855 param_len = strlen(param) * sizeof(__le16);
856 info_len = sizeof(*infobuf) + param_len + value_len;
857
858#ifdef DEBUG
859 info_len += 12;
860#endif
861 infobuf = kmalloc(info_len, GFP_KERNEL);
862 if (!infobuf)
863 return -ENOMEM;
864
865#ifdef DEBUG
866 info_len -= 12;
867
868 memset(infobuf, 0xCC, info_len + 12);
869#endif
870
871 if (value_type == 2)
872 devdbg(dev, "setting config parameter: %s, value: %s",
873 param, (u8 *)value);
874 else
875 devdbg(dev, "setting config parameter: %s, value: %d",
876 param, *(u32 *)value);
877
878 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
879 infobuf->name_length = cpu_to_le32(param_len);
880 infobuf->type = cpu_to_le32(value_type);
881 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
882 infobuf->value_length = cpu_to_le32(value_len);
883
884
885 unibuf = (void *)infobuf + sizeof(*infobuf);
886 for (i = 0; i < param_len / sizeof(__le16); i++)
887 unibuf[i] = cpu_to_le16(param[i]);
888
889 if (value_type == 2) {
890 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
891 for (i = 0; i < value_len / sizeof(__le16); i++)
892 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
893 } else {
894 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
895 *dst_value = cpu_to_le32(*(u32 *)value);
896 }
897
898#ifdef DEBUG
899 devdbg(dev, "info buffer (len: %d):", info_len);
900 for (i = 0; i < info_len; i += 12) {
901 u32 *tmp = (u32 *)((u8 *)infobuf + i);
902 devdbg(dev, "%08X:%08X:%08X",
903 cpu_to_be32(tmp[0]),
904 cpu_to_be32(tmp[1]),
905 cpu_to_be32(tmp[2]));
906 }
907#endif
908
909 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
910 infobuf, info_len);
911 if (ret != 0)
912 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
913
914 kfree(infobuf);
915 return ret;
916}
917
918static int rndis_set_config_parameter_str(struct usbnet *dev,
919 char *param, char *value)
920{
921 return rndis_set_config_parameter(dev, param, 2, value);
922}
923
924
925
926
927static int level_to_qual(int level)
928{
929 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
930 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
931}
932
933
934
935
936static int set_infra_mode(struct usbnet *usbdev, int mode);
937static void restore_keys(struct usbnet *usbdev);
938static int rndis_check_bssid_list(struct usbnet *usbdev);
939
940static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
941{
942 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
943 int ret;
944
945 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
946 if (ret < 0) {
947 devwarn(usbdev, "setting SSID failed (%08X)", ret);
948 return ret;
949 }
950 if (ret == 0) {
951 memcpy(&priv->essid, ssid, sizeof(priv->essid));
952 priv->radio_on = true;
953 devdbg(usbdev, "set_essid: radio_on = true");
954 }
955
956 return ret;
957}
958
959static int set_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
960{
961 int ret;
962
963 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
964 if (ret < 0) {
965 devwarn(usbdev, "setting BSSID[%pM] failed (%08X)", bssid, ret);
966 return ret;
967 }
968
969 return ret;
970}
971
972static int clear_bssid(struct usbnet *usbdev)
973{
974 u8 broadcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
975
976 return set_bssid(usbdev, broadcast_mac);
977}
978
979static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
980{
981 int ret, len;
982
983 len = ETH_ALEN;
984 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
985
986 if (ret != 0)
987 memset(bssid, 0, ETH_ALEN);
988
989 return ret;
990}
991
992static int get_association_info(struct usbnet *usbdev,
993 struct ndis_80211_assoc_info *info, int len)
994{
995 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
996 info, &len);
997}
998
999static bool is_associated(struct usbnet *usbdev)
1000{
1001 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1002 u8 bssid[ETH_ALEN];
1003 int ret;
1004
1005 if (!priv->radio_on)
1006 return false;
1007
1008 ret = get_bssid(usbdev, bssid);
1009
1010 return (ret == 0 && !is_zero_ether_addr(bssid));
1011}
1012
1013static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1014{
1015 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1016 struct ndis_80211_ssid ssid;
1017 int i, ret = 0;
1018
1019 if (priv->radio_on) {
1020 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1021 if (ret == 0) {
1022 priv->radio_on = false;
1023 devdbg(usbdev, "disassociate: radio_on = false");
1024
1025 if (reset_ssid)
1026 msleep(100);
1027 }
1028 }
1029
1030
1031
1032 if (reset_ssid) {
1033
1034
1035
1036 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1037
1038 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1039 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1040 ssid.essid[0] = 0x1;
1041 ssid.essid[1] = 0xff;
1042 for (i = 2; i < sizeof(ssid.essid); i++)
1043 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1044 ret = set_essid(usbdev, &ssid);
1045 }
1046 return ret;
1047}
1048
1049static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1050 enum nl80211_auth_type auth_type, int keymgmt)
1051{
1052 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1053 __le32 tmp;
1054 int auth_mode, ret;
1055
1056 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
1057 "keymgmt=0x%x", wpa_version, auth_type, keymgmt);
1058
1059 if (wpa_version & NL80211_WPA_VERSION_2) {
1060 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1061 auth_mode = NDIS_80211_AUTH_WPA2;
1062 else
1063 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1064 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1065 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1066 auth_mode = NDIS_80211_AUTH_WPA;
1067 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1068 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1069 else
1070 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1071 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1072 auth_mode = NDIS_80211_AUTH_SHARED;
1073 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1074 auth_mode = NDIS_80211_AUTH_OPEN;
1075 else
1076 return -ENOTSUPP;
1077
1078 tmp = cpu_to_le32(auth_mode);
1079 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1080 sizeof(tmp));
1081 if (ret != 0) {
1082 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
1083 return ret;
1084 }
1085
1086 priv->wpa_version = wpa_version;
1087 priv->wpa_auth_type = auth_type;
1088 priv->wpa_keymgmt = keymgmt;
1089
1090 return 0;
1091}
1092
1093static int set_priv_filter(struct usbnet *usbdev)
1094{
1095 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1096 __le32 tmp;
1097
1098 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
1099
1100 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1101 priv->wpa_version & NL80211_WPA_VERSION_1)
1102 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1103 else
1104 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1105
1106 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1107 sizeof(tmp));
1108}
1109
1110static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1111{
1112 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1113 __le32 tmp;
1114 int encr_mode, ret;
1115
1116 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
1117 pairwise, groupwise);
1118
1119 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1120 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1121 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1122 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1123 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1124 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1125 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1126 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1127 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1128 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1129 else
1130 encr_mode = NDIS_80211_ENCR_DISABLED;
1131
1132 tmp = cpu_to_le32(encr_mode);
1133 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1134 sizeof(tmp));
1135 if (ret != 0) {
1136 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
1137 return ret;
1138 }
1139
1140 priv->wpa_cipher_pair = pairwise;
1141 priv->wpa_cipher_group = groupwise;
1142 return 0;
1143}
1144
1145static int set_infra_mode(struct usbnet *usbdev, int mode)
1146{
1147 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1148 __le32 tmp;
1149 int ret;
1150
1151 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
1152
1153 tmp = cpu_to_le32(mode);
1154 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1155 sizeof(tmp));
1156 if (ret != 0) {
1157 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
1158 return ret;
1159 }
1160
1161
1162
1163
1164 restore_keys(usbdev);
1165
1166 priv->infra_mode = mode;
1167 return 0;
1168}
1169
1170static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1171{
1172 __le32 tmp;
1173
1174 devdbg(usbdev, "set_rts_threshold %i", rts_threshold);
1175
1176 if (rts_threshold < 0 || rts_threshold > 2347)
1177 rts_threshold = 2347;
1178
1179 tmp = cpu_to_le32(rts_threshold);
1180 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1181 sizeof(tmp));
1182}
1183
1184static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1185{
1186 __le32 tmp;
1187
1188 devdbg(usbdev, "set_frag_threshold %i", frag_threshold);
1189
1190 if (frag_threshold < 256 || frag_threshold > 2346)
1191 frag_threshold = 2346;
1192
1193 tmp = cpu_to_le32(frag_threshold);
1194 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1195 sizeof(tmp));
1196}
1197
1198static void set_default_iw_params(struct usbnet *usbdev)
1199{
1200 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1201 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1202 RNDIS_WLAN_KEY_MGMT_NONE);
1203 set_priv_filter(usbdev);
1204 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1205}
1206
1207static int deauthenticate(struct usbnet *usbdev)
1208{
1209 int ret;
1210
1211 ret = disassociate(usbdev, true);
1212 set_default_iw_params(usbdev);
1213 return ret;
1214}
1215
1216static int set_channel(struct usbnet *usbdev, int channel)
1217{
1218 struct ndis_80211_conf config;
1219 unsigned int dsconfig;
1220 int len, ret;
1221
1222 devdbg(usbdev, "set_channel(%d)", channel);
1223
1224
1225 if (is_associated(usbdev))
1226 return 0;
1227
1228 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1229
1230 len = sizeof(config);
1231 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1232 if (ret < 0) {
1233 devdbg(usbdev, "set_channel: querying configuration failed");
1234 return ret;
1235 }
1236
1237 config.ds_config = cpu_to_le32(dsconfig);
1238 ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1239 sizeof(config));
1240
1241 devdbg(usbdev, "set_channel: %d -> %d", channel, ret);
1242
1243 return ret;
1244}
1245
1246
1247static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1248 int index)
1249{
1250 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1251 struct ndis_80211_wep_key ndis_key;
1252 u32 cipher;
1253 int ret;
1254
1255 devdbg(usbdev, "add_wep_key(idx: %d, len: %d)", index, key_len);
1256
1257 if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1258 return -EINVAL;
1259
1260 if (key_len == 5)
1261 cipher = WLAN_CIPHER_SUITE_WEP40;
1262 else
1263 cipher = WLAN_CIPHER_SUITE_WEP104;
1264
1265 memset(&ndis_key, 0, sizeof(ndis_key));
1266
1267 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1268 ndis_key.length = cpu_to_le32(key_len);
1269 ndis_key.index = cpu_to_le32(index);
1270 memcpy(&ndis_key.material, key, key_len);
1271
1272 if (index == priv->encr_tx_key_index) {
1273 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1274 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1275 RNDIS_WLAN_ALG_NONE);
1276 if (ret)
1277 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1278 ret);
1279 }
1280
1281 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1282 sizeof(ndis_key));
1283 if (ret != 0) {
1284 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1285 index+1, ret);
1286 return ret;
1287 }
1288
1289 priv->encr_keys[index].len = key_len;
1290 priv->encr_keys[index].cipher = cipher;
1291 memcpy(&priv->encr_keys[index].material, key, key_len);
1292 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1293
1294 return 0;
1295}
1296
1297static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1298 int index, const u8 *addr, const u8 *rx_seq,
1299 int seq_len, u32 cipher, __le32 flags)
1300{
1301 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1302 struct ndis_80211_key ndis_key;
1303 bool is_addr_ok;
1304 int ret;
1305
1306 if (index < 0 || index >= 4) {
1307 devdbg(usbdev, "add_wpa_key: index out of range (%i)", index);
1308 return -EINVAL;
1309 }
1310 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1311 devdbg(usbdev, "add_wpa_key: key length out of range (%i)",
1312 key_len);
1313 return -EINVAL;
1314 }
1315 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1316 if (!rx_seq || seq_len <= 0) {
1317 devdbg(usbdev, "add_wpa_key: recv seq flag without"
1318 "buffer");
1319 return -EINVAL;
1320 }
1321 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1322 devdbg(usbdev, "add_wpa_key: too big recv seq buffer");
1323 return -EINVAL;
1324 }
1325 }
1326
1327 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1328 !is_broadcast_ether_addr(addr);
1329 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1330 devdbg(usbdev, "add_wpa_key: pairwise but bssid invalid (%pM)",
1331 addr);
1332 return -EINVAL;
1333 }
1334
1335 devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1336 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1337 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1338 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1339
1340 memset(&ndis_key, 0, sizeof(ndis_key));
1341
1342 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1343 sizeof(ndis_key.material) + key_len);
1344 ndis_key.length = cpu_to_le32(key_len);
1345 ndis_key.index = cpu_to_le32(index) | flags;
1346
1347 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1348
1349
1350 memcpy(ndis_key.material, key, 16);
1351 memcpy(ndis_key.material + 16, key + 24, 8);
1352 memcpy(ndis_key.material + 24, key + 16, 8);
1353 } else
1354 memcpy(ndis_key.material, key, key_len);
1355
1356 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1357 memcpy(ndis_key.rsc, rx_seq, seq_len);
1358
1359 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1360
1361 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1362 } else {
1363
1364 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1365 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1366 else
1367 get_bssid(usbdev, ndis_key.bssid);
1368 }
1369
1370 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1371 le32_to_cpu(ndis_key.size));
1372 devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1373 if (ret != 0)
1374 return ret;
1375
1376 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1377 priv->encr_keys[index].len = key_len;
1378 priv->encr_keys[index].cipher = cipher;
1379 memcpy(&priv->encr_keys[index].material, key, key_len);
1380 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1381 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1382 else
1383 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1384
1385 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1386 priv->encr_tx_key_index = index;
1387
1388 return 0;
1389}
1390
1391static int restore_key(struct usbnet *usbdev, int key_idx)
1392{
1393 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1394 struct rndis_wlan_encr_key key;
1395
1396 if (is_wpa_key(priv, key_idx))
1397 return 0;
1398
1399 key = priv->encr_keys[key_idx];
1400
1401 devdbg(usbdev, "restore_key: %i:%i", key_idx, key.len);
1402
1403 if (key.len == 0)
1404 return 0;
1405
1406 return add_wep_key(usbdev, key.material, key.len, key_idx);
1407}
1408
1409static void restore_keys(struct usbnet *usbdev)
1410{
1411 int i;
1412
1413 for (i = 0; i < 4; i++)
1414 restore_key(usbdev, i);
1415}
1416
1417static void clear_key(struct rndis_wlan_private *priv, int idx)
1418{
1419 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1420}
1421
1422
1423static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
1424{
1425 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1426 struct ndis_80211_remove_key remove_key;
1427 __le32 keyindex;
1428 bool is_wpa;
1429 int ret;
1430
1431 if (priv->encr_keys[index].len == 0)
1432 return 0;
1433
1434 is_wpa = is_wpa_key(priv, index);
1435
1436 devdbg(usbdev, "remove_key: %i:%s:%i", index, is_wpa ? "wpa" : "wep",
1437 priv->encr_keys[index].len);
1438
1439 clear_key(priv, index);
1440
1441 if (is_wpa) {
1442 remove_key.size = cpu_to_le32(sizeof(remove_key));
1443 remove_key.index = cpu_to_le32(index);
1444 if (bssid) {
1445
1446 if (!is_broadcast_ether_addr(bssid))
1447 remove_key.index |=
1448 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1449 memcpy(remove_key.bssid, bssid,
1450 sizeof(remove_key.bssid));
1451 } else
1452 memset(remove_key.bssid, 0xff,
1453 sizeof(remove_key.bssid));
1454
1455 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1456 sizeof(remove_key));
1457 if (ret != 0)
1458 return ret;
1459 } else {
1460 keyindex = cpu_to_le32(index);
1461 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1462 sizeof(keyindex));
1463 if (ret != 0) {
1464 devwarn(usbdev,
1465 "removing encryption key %d failed (%08X)",
1466 index, ret);
1467 return ret;
1468 }
1469 }
1470
1471
1472 if (index == priv->encr_tx_key_index)
1473 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1474
1475 return 0;
1476}
1477
1478static void set_multicast_list(struct usbnet *usbdev)
1479{
1480 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1481 struct dev_mc_list *mclist;
1482 __le32 filter;
1483 int ret, i, size;
1484 char *buf;
1485
1486 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1487
1488 if (usbdev->net->flags & IFF_PROMISC) {
1489 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1490 RNDIS_PACKET_TYPE_ALL_LOCAL;
1491 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1492 usbdev->net->mc_count > priv->multicast_size) {
1493 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1494 } else if (usbdev->net->mc_count > 0) {
1495 size = min(priv->multicast_size, usbdev->net->mc_count);
1496 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1497 if (!buf) {
1498 devwarn(usbdev,
1499 "couldn't alloc %d bytes of memory",
1500 size * ETH_ALEN);
1501 return;
1502 }
1503
1504 mclist = usbdev->net->mc_list;
1505 for (i = 0; i < size && mclist; mclist = mclist->next) {
1506 if (mclist->dmi_addrlen != ETH_ALEN)
1507 continue;
1508
1509 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1510 i++;
1511 }
1512
1513 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1514 i * ETH_ALEN);
1515 if (ret == 0 && i > 0)
1516 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1517 else
1518 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1519
1520 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1521 i, priv->multicast_size, ret);
1522
1523 kfree(buf);
1524 }
1525
1526 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1527 sizeof(filter));
1528 if (ret < 0) {
1529 devwarn(usbdev, "couldn't set packet filter: %08x",
1530 le32_to_cpu(filter));
1531 }
1532
1533 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1534 le32_to_cpu(filter), ret);
1535}
1536
1537
1538
1539
1540static int rndis_change_virtual_intf(struct wiphy *wiphy,
1541 struct net_device *dev,
1542 enum nl80211_iftype type, u32 *flags,
1543 struct vif_params *params)
1544{
1545 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1546 struct usbnet *usbdev = priv->usbdev;
1547 int mode;
1548
1549 switch (type) {
1550 case NL80211_IFTYPE_ADHOC:
1551 mode = NDIS_80211_INFRA_ADHOC;
1552 break;
1553 case NL80211_IFTYPE_STATION:
1554 mode = NDIS_80211_INFRA_INFRA;
1555 break;
1556 default:
1557 return -EINVAL;
1558 }
1559
1560 priv->wdev.iftype = type;
1561
1562 return set_infra_mode(usbdev, mode);
1563}
1564
1565static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1566{
1567 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1568 struct usbnet *usbdev = priv->usbdev;
1569 int err;
1570
1571 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1572 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1573 if (err < 0)
1574 return err;
1575 }
1576
1577 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1578 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1579 if (err < 0)
1580 return err;
1581 }
1582
1583 return 0;
1584}
1585
1586static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
1587 int dbm)
1588{
1589 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1590 struct usbnet *usbdev = priv->usbdev;
1591
1592 devdbg(usbdev, "rndis_set_tx_power type:0x%x dbm:%i", type, dbm);
1593
1594
1595
1596
1597
1598 if (type == TX_POWER_AUTOMATIC || dbm == get_bcm4320_power_dbm(priv)) {
1599 if (!priv->radio_on)
1600 disassociate(usbdev, true);
1601
1602 return 0;
1603 }
1604
1605 return -ENOTSUPP;
1606}
1607
1608static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1609{
1610 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1611 struct usbnet *usbdev = priv->usbdev;
1612
1613 *dbm = get_bcm4320_power_dbm(priv);
1614
1615 devdbg(usbdev, "rndis_get_tx_power dbm:%i", *dbm);
1616
1617 return 0;
1618}
1619
1620#define SCAN_DELAY_JIFFIES (6 * HZ)
1621static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1622 struct cfg80211_scan_request *request)
1623{
1624 struct usbnet *usbdev = netdev_priv(dev);
1625 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1626 int ret;
1627 __le32 tmp;
1628
1629 devdbg(usbdev, "cfg80211.scan");
1630
1631
1632
1633
1634 rndis_check_bssid_list(usbdev);
1635
1636 if (!request)
1637 return -EINVAL;
1638
1639 if (priv->scan_request && priv->scan_request != request)
1640 return -EBUSY;
1641
1642 priv->scan_request = request;
1643
1644 tmp = cpu_to_le32(1);
1645 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1646 sizeof(tmp));
1647 if (ret == 0) {
1648
1649 queue_delayed_work(priv->workqueue, &priv->scan_work,
1650 SCAN_DELAY_JIFFIES);
1651 }
1652
1653 return ret;
1654}
1655
1656static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1657 struct ndis_80211_bssid_ex *bssid)
1658{
1659 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1660 struct ieee80211_channel *channel;
1661 s32 signal;
1662 u64 timestamp;
1663 u16 capability;
1664 u16 beacon_interval;
1665 struct ndis_80211_fixed_ies *fixed;
1666 int ie_len, bssid_len;
1667 u8 *ie;
1668
1669 devdbg(usbdev, " found bssid: '%.32s' [%pM]", bssid->ssid.essid,
1670 bssid->mac);
1671
1672
1673 bssid_len = le32_to_cpu(bssid->length);
1674
1675 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1676 sizeof(struct ndis_80211_fixed_ies))
1677 return NULL;
1678
1679 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1680
1681 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1682 ie_len = min(bssid_len - (int)sizeof(*bssid),
1683 (int)le32_to_cpu(bssid->ie_length));
1684 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1685 if (ie_len < 0)
1686 return NULL;
1687
1688
1689 channel = ieee80211_get_channel(priv->wdev.wiphy,
1690 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1691 if (!channel)
1692 return NULL;
1693
1694 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1695 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1696 capability = le16_to_cpu(fixed->capabilities);
1697 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1698
1699 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1700 timestamp, capability, beacon_interval, ie, ie_len, signal,
1701 GFP_KERNEL);
1702}
1703
1704static int rndis_check_bssid_list(struct usbnet *usbdev)
1705{
1706 void *buf = NULL;
1707 struct ndis_80211_bssid_list_ex *bssid_list;
1708 struct ndis_80211_bssid_ex *bssid;
1709 int ret = -EINVAL, len, count, bssid_len;
1710 bool resized = false;
1711
1712 devdbg(usbdev, "check_bssid_list");
1713
1714 len = CONTROL_BUFFER_SIZE;
1715resize_buf:
1716 buf = kmalloc(len, GFP_KERNEL);
1717 if (!buf) {
1718 ret = -ENOMEM;
1719 goto out;
1720 }
1721
1722 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1723 if (ret != 0)
1724 goto out;
1725
1726 if (!resized && len > CONTROL_BUFFER_SIZE) {
1727 resized = true;
1728 kfree(buf);
1729 goto resize_buf;
1730 }
1731
1732 bssid_list = buf;
1733 bssid = bssid_list->bssid;
1734 bssid_len = le32_to_cpu(bssid->length);
1735 count = le32_to_cpu(bssid_list->num_items);
1736 devdbg(usbdev, "check_bssid_list: %d BSSIDs found (buflen: %d)", count,
1737 len);
1738
1739 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1740 rndis_bss_info_update(usbdev, bssid);
1741
1742 bssid = (void *)bssid + bssid_len;
1743 bssid_len = le32_to_cpu(bssid->length);
1744 count--;
1745 }
1746
1747out:
1748 kfree(buf);
1749 return ret;
1750}
1751
1752static void rndis_get_scan_results(struct work_struct *work)
1753{
1754 struct rndis_wlan_private *priv =
1755 container_of(work, struct rndis_wlan_private, scan_work.work);
1756 struct usbnet *usbdev = priv->usbdev;
1757 int ret;
1758
1759 devdbg(usbdev, "get_scan_results");
1760
1761 if (!priv->scan_request)
1762 return;
1763
1764 ret = rndis_check_bssid_list(usbdev);
1765
1766 cfg80211_scan_done(priv->scan_request, ret < 0);
1767
1768 priv->scan_request = NULL;
1769}
1770
1771static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
1772 struct cfg80211_connect_params *sme)
1773{
1774 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1775 struct usbnet *usbdev = priv->usbdev;
1776 struct ieee80211_channel *channel = sme->channel;
1777 struct ndis_80211_ssid ssid;
1778 int pairwise = RNDIS_WLAN_ALG_NONE;
1779 int groupwise = RNDIS_WLAN_ALG_NONE;
1780 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
1781 int length, i, ret, chan = -1;
1782
1783 if (channel)
1784 chan = ieee80211_frequency_to_channel(channel->center_freq);
1785
1786 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
1787 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
1788 pairwise |=
1789 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
1790
1791 if (sme->crypto.n_ciphers_pairwise > 0 &&
1792 pairwise == RNDIS_WLAN_ALG_NONE) {
1793 deverr(usbdev, "Unsupported pairwise cipher");
1794 return -ENOTSUPP;
1795 }
1796
1797 for (i = 0; i < sme->crypto.n_akm_suites; i++)
1798 keymgmt |=
1799 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
1800
1801 if (sme->crypto.n_akm_suites > 0 &&
1802 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
1803 deverr(usbdev, "Invalid keymgmt");
1804 return -ENOTSUPP;
1805 }
1806
1807 devdbg(usbdev, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:"
1808 "0x%x]:0x%x)", sme->ssid, sme->bssid, chan,
1809 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
1810 groupwise, pairwise, keymgmt);
1811
1812 if (is_associated(usbdev))
1813 disassociate(usbdev, false);
1814
1815 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1816 if (ret < 0) {
1817 devdbg(usbdev, "connect: set_infra_mode failed, %d", ret);
1818 goto err_turn_radio_on;
1819 }
1820
1821 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
1822 keymgmt);
1823 if (ret < 0) {
1824 devdbg(usbdev, "connect: set_auth_mode failed, %d", ret);
1825 goto err_turn_radio_on;
1826 }
1827
1828 set_priv_filter(usbdev);
1829
1830 ret = set_encr_mode(usbdev, pairwise, groupwise);
1831 if (ret < 0) {
1832 devdbg(usbdev, "connect: set_encr_mode failed, %d", ret);
1833 goto err_turn_radio_on;
1834 }
1835
1836 if (channel) {
1837 ret = set_channel(usbdev, chan);
1838 if (ret < 0) {
1839 devdbg(usbdev, "connect: set_channel failed, %d", ret);
1840 goto err_turn_radio_on;
1841 }
1842 }
1843
1844 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
1845 priv->encr_tx_key_index = sme->key_idx;
1846 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
1847 if (ret < 0) {
1848 devdbg(usbdev, "connect: add_wep_key failed, %d "
1849 "(%d, %d)", ret, sme->key_len, sme->key_idx);
1850 goto err_turn_radio_on;
1851 }
1852 }
1853
1854 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
1855 !is_broadcast_ether_addr(sme->bssid)) {
1856 ret = set_bssid(usbdev, sme->bssid);
1857 if (ret < 0) {
1858 devdbg(usbdev, "connect: set_bssid failed, %d", ret);
1859 goto err_turn_radio_on;
1860 }
1861 } else
1862 clear_bssid(usbdev);
1863
1864 length = sme->ssid_len;
1865 if (length > NDIS_802_11_LENGTH_SSID)
1866 length = NDIS_802_11_LENGTH_SSID;
1867
1868 memset(&ssid, 0, sizeof(ssid));
1869 ssid.length = cpu_to_le32(length);
1870 memcpy(ssid.essid, sme->ssid, length);
1871
1872
1873
1874
1875 usbnet_pause_rx(usbdev);
1876 usbnet_purge_paused_rxq(usbdev);
1877
1878 ret = set_essid(usbdev, &ssid);
1879 if (ret < 0)
1880 devdbg(usbdev, "connect: set_essid failed, %d", ret);
1881 return ret;
1882
1883err_turn_radio_on:
1884 disassociate(usbdev, true);
1885
1886 return ret;
1887}
1888
1889static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
1890 u16 reason_code)
1891{
1892 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1893 struct usbnet *usbdev = priv->usbdev;
1894
1895 devdbg(usbdev, "cfg80211.disconnect(%d)", reason_code);
1896
1897 priv->connected = false;
1898 memset(priv->bssid, 0, ETH_ALEN);
1899
1900 return deauthenticate(usbdev);
1901}
1902
1903static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1904 struct cfg80211_ibss_params *params)
1905{
1906 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1907 struct usbnet *usbdev = priv->usbdev;
1908 struct ieee80211_channel *channel = params->channel;
1909 struct ndis_80211_ssid ssid;
1910 enum nl80211_auth_type auth_type;
1911 int ret, alg, length, chan = -1;
1912
1913 if (channel)
1914 chan = ieee80211_frequency_to_channel(channel->center_freq);
1915
1916
1917
1918
1919
1920
1921 if (params->privacy) {
1922 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
1923 alg = RNDIS_WLAN_ALG_WEP;
1924 } else {
1925 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1926 alg = RNDIS_WLAN_ALG_NONE;
1927 }
1928
1929 devdbg(usbdev, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)", params->ssid,
1930 params->bssid, chan, params->privacy);
1931
1932 if (is_associated(usbdev))
1933 disassociate(usbdev, false);
1934
1935 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
1936 if (ret < 0) {
1937 devdbg(usbdev, "join_ibss: set_infra_mode failed, %d", ret);
1938 goto err_turn_radio_on;
1939 }
1940
1941 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
1942 if (ret < 0) {
1943 devdbg(usbdev, "join_ibss: set_auth_mode failed, %d", ret);
1944 goto err_turn_radio_on;
1945 }
1946
1947 set_priv_filter(usbdev);
1948
1949 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
1950 if (ret < 0) {
1951 devdbg(usbdev, "join_ibss: set_encr_mode failed, %d", ret);
1952 goto err_turn_radio_on;
1953 }
1954
1955 if (channel) {
1956 ret = set_channel(usbdev, chan);
1957 if (ret < 0) {
1958 devdbg(usbdev, "join_ibss: set_channel failed, %d",
1959 ret);
1960 goto err_turn_radio_on;
1961 }
1962 }
1963
1964 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
1965 !is_broadcast_ether_addr(params->bssid)) {
1966 ret = set_bssid(usbdev, params->bssid);
1967 if (ret < 0) {
1968 devdbg(usbdev, "join_ibss: set_bssid failed, %d", ret);
1969 goto err_turn_radio_on;
1970 }
1971 } else
1972 clear_bssid(usbdev);
1973
1974 length = params->ssid_len;
1975 if (length > NDIS_802_11_LENGTH_SSID)
1976 length = NDIS_802_11_LENGTH_SSID;
1977
1978 memset(&ssid, 0, sizeof(ssid));
1979 ssid.length = cpu_to_le32(length);
1980 memcpy(ssid.essid, params->ssid, length);
1981
1982
1983 usbnet_purge_paused_rxq(usbdev);
1984 usbnet_resume_rx(usbdev);
1985
1986 ret = set_essid(usbdev, &ssid);
1987 if (ret < 0)
1988 devdbg(usbdev, "join_ibss: set_essid failed, %d", ret);
1989 return ret;
1990
1991err_turn_radio_on:
1992 disassociate(usbdev, true);
1993
1994 return ret;
1995}
1996
1997static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1998{
1999 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2000 struct usbnet *usbdev = priv->usbdev;
2001
2002 devdbg(usbdev, "cfg80211.leave_ibss()");
2003
2004 priv->connected = false;
2005 memset(priv->bssid, 0, ETH_ALEN);
2006
2007 return deauthenticate(usbdev);
2008}
2009
2010static int rndis_set_channel(struct wiphy *wiphy,
2011 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2012{
2013 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2014 struct usbnet *usbdev = priv->usbdev;
2015
2016 return set_channel(usbdev,
2017 ieee80211_frequency_to_channel(chan->center_freq));
2018}
2019
2020static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2021 u8 key_index, const u8 *mac_addr,
2022 struct key_params *params)
2023{
2024 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2025 struct usbnet *usbdev = priv->usbdev;
2026 __le32 flags;
2027
2028 devdbg(usbdev, "rndis_add_key(%i, %pM, %08x)", key_index, mac_addr,
2029 params->cipher);
2030
2031 switch (params->cipher) {
2032 case WLAN_CIPHER_SUITE_WEP40:
2033 case WLAN_CIPHER_SUITE_WEP104:
2034 return add_wep_key(usbdev, params->key, params->key_len,
2035 key_index);
2036 case WLAN_CIPHER_SUITE_TKIP:
2037 case WLAN_CIPHER_SUITE_CCMP:
2038 flags = 0;
2039
2040 if (params->seq && params->seq_len > 0)
2041 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2042 if (mac_addr)
2043 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2044 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2045
2046 return add_wpa_key(usbdev, params->key, params->key_len,
2047 key_index, mac_addr, params->seq,
2048 params->seq_len, params->cipher, flags);
2049 default:
2050 devdbg(usbdev, "rndis_add_key: unsupported cipher %08x",
2051 params->cipher);
2052 return -ENOTSUPP;
2053 }
2054}
2055
2056static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2057 u8 key_index, const u8 *mac_addr)
2058{
2059 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2060 struct usbnet *usbdev = priv->usbdev;
2061
2062 devdbg(usbdev, "rndis_del_key(%i, %pM)", key_index, mac_addr);
2063
2064 return remove_key(usbdev, key_index, mac_addr);
2065}
2066
2067static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2068 u8 key_index)
2069{
2070 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2071 struct usbnet *usbdev = priv->usbdev;
2072 struct rndis_wlan_encr_key key;
2073
2074 devdbg(usbdev, "rndis_set_default_key(%i)", key_index);
2075
2076 priv->encr_tx_key_index = key_index;
2077
2078 key = priv->encr_keys[key_index];
2079
2080 return add_wep_key(usbdev, key.material, key.len, key_index);
2081}
2082
2083static void rndis_fill_station_info(struct usbnet *usbdev,
2084 struct station_info *sinfo)
2085{
2086 __le32 linkspeed, rssi;
2087 int ret, len;
2088
2089 memset(sinfo, 0, sizeof(*sinfo));
2090
2091 len = sizeof(linkspeed);
2092 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2093 if (ret == 0) {
2094 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2095 sinfo->filled |= STATION_INFO_TX_BITRATE;
2096 }
2097
2098 len = sizeof(rssi);
2099 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2100 if (ret == 0) {
2101 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2102 sinfo->filled |= STATION_INFO_SIGNAL;
2103 }
2104}
2105
2106static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2107 u8 *mac, struct station_info *sinfo)
2108{
2109 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2110 struct usbnet *usbdev = priv->usbdev;
2111
2112 if (compare_ether_addr(priv->bssid, mac))
2113 return -ENOENT;
2114
2115 rndis_fill_station_info(usbdev, sinfo);
2116
2117 return 0;
2118}
2119
2120static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2121 int idx, u8 *mac, struct station_info *sinfo)
2122{
2123 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2124 struct usbnet *usbdev = priv->usbdev;
2125
2126 if (idx != 0)
2127 return -ENOENT;
2128
2129 memcpy(mac, priv->bssid, ETH_ALEN);
2130
2131 rndis_fill_station_info(usbdev, sinfo);
2132
2133 return 0;
2134}
2135
2136
2137
2138
2139static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2140{
2141 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2142 struct ndis_80211_assoc_info *info;
2143 u8 assoc_buf[sizeof(*info) + IW_CUSTOM_MAX + 32];
2144 u8 bssid[ETH_ALEN];
2145 int resp_ie_len, req_ie_len;
2146 u8 *req_ie, *resp_ie;
2147 int ret, offset;
2148 bool roamed = false;
2149
2150 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2151
2152
2153 roamed = true;
2154 }
2155
2156 req_ie_len = 0;
2157 resp_ie_len = 0;
2158 req_ie = NULL;
2159 resp_ie = NULL;
2160
2161 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2162 memset(assoc_buf, 0, sizeof(assoc_buf));
2163 info = (void *)assoc_buf;
2164
2165
2166
2167 ret = get_association_info(usbdev, info, sizeof(assoc_buf));
2168 if (!ret) {
2169 req_ie_len = le32_to_cpu(info->req_ie_length);
2170 if (req_ie_len > 0) {
2171 offset = le32_to_cpu(info->offset_req_ies);
2172 req_ie = (u8 *)info + offset;
2173 }
2174
2175 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2176 if (resp_ie_len > 0) {
2177 offset = le32_to_cpu(info->offset_resp_ies);
2178 resp_ie = (u8 *)info + offset;
2179 }
2180 }
2181 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2182 return;
2183
2184 ret = get_bssid(usbdev, bssid);
2185 if (ret < 0)
2186 memset(bssid, 0, sizeof(bssid));
2187
2188 devdbg(usbdev, "link up work: [%pM] %s", bssid, roamed ? "roamed" : "");
2189
2190
2191
2192
2193
2194
2195
2196 rndis_check_bssid_list(usbdev);
2197
2198 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2199 if (!roamed)
2200 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2201 req_ie_len, resp_ie,
2202 resp_ie_len, 0, GFP_KERNEL);
2203 else
2204 cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len,
2205 resp_ie, resp_ie_len, GFP_KERNEL);
2206 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2207 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2208
2209 priv->connected = true;
2210 memcpy(priv->bssid, bssid, ETH_ALEN);
2211
2212 usbnet_resume_rx(usbdev);
2213 netif_carrier_on(usbdev->net);
2214}
2215
2216static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2217{
2218 union iwreq_data evt;
2219
2220 netif_carrier_off(usbdev->net);
2221
2222 evt.data.flags = 0;
2223 evt.data.length = 0;
2224 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2225 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2226}
2227
2228static void rndis_wlan_worker(struct work_struct *work)
2229{
2230 struct rndis_wlan_private *priv =
2231 container_of(work, struct rndis_wlan_private, work);
2232 struct usbnet *usbdev = priv->usbdev;
2233
2234 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2235 rndis_wlan_do_link_up_work(usbdev);
2236
2237 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2238 rndis_wlan_do_link_down_work(usbdev);
2239
2240 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2241 set_multicast_list(usbdev);
2242}
2243
2244static void rndis_wlan_set_multicast_list(struct net_device *dev)
2245{
2246 struct usbnet *usbdev = netdev_priv(dev);
2247 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2248
2249 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2250 return;
2251
2252 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2253 queue_work(priv->workqueue, &priv->work);
2254}
2255
2256static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2257 struct ndis_80211_status_indication *indication,
2258 int len)
2259{
2260 u8 *buf;
2261 const char *type;
2262 int flags, buflen, key_id;
2263 bool pairwise_error, group_error;
2264 struct ndis_80211_auth_request *auth_req;
2265 enum nl80211_key_type key_type;
2266
2267
2268 if (len < offsetof(struct ndis_80211_status_indication, u) +
2269 sizeof(struct ndis_80211_auth_request)) {
2270 devinfo(usbdev, "authentication indication: "
2271 "too short message (%i)", len);
2272 return;
2273 }
2274
2275 buf = (void *)&indication->u.auth_request[0];
2276 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2277
2278 while (buflen >= sizeof(*auth_req)) {
2279 auth_req = (void *)buf;
2280 type = "unknown";
2281 flags = le32_to_cpu(auth_req->flags);
2282 pairwise_error = false;
2283 group_error = false;
2284
2285 if (flags & 0x1)
2286 type = "reauth request";
2287 if (flags & 0x2)
2288 type = "key update request";
2289 if (flags & 0x6) {
2290 pairwise_error = true;
2291 type = "pairwise_error";
2292 }
2293 if (flags & 0xe) {
2294 group_error = true;
2295 type = "group_error";
2296 }
2297
2298 devinfo(usbdev, "authentication indication: %s (0x%08x)", type,
2299 le32_to_cpu(auth_req->flags));
2300
2301 if (pairwise_error) {
2302 key_type = NL80211_KEYTYPE_PAIRWISE;
2303 key_id = -1;
2304
2305 cfg80211_michael_mic_failure(usbdev->net,
2306 auth_req->bssid,
2307 key_type, key_id, NULL,
2308 GFP_KERNEL);
2309 }
2310
2311 if (group_error) {
2312 key_type = NL80211_KEYTYPE_GROUP;
2313 key_id = -1;
2314
2315 cfg80211_michael_mic_failure(usbdev->net,
2316 auth_req->bssid,
2317 key_type, key_id, NULL,
2318 GFP_KERNEL);
2319 }
2320
2321 buflen -= le32_to_cpu(auth_req->length);
2322 buf += le32_to_cpu(auth_req->length);
2323 }
2324}
2325
2326static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2327 struct ndis_80211_status_indication *indication,
2328 int len)
2329{
2330 struct ndis_80211_pmkid_cand_list *cand_list;
2331 int list_len, expected_len, i;
2332
2333 if (len < offsetof(struct ndis_80211_status_indication, u) +
2334 sizeof(struct ndis_80211_pmkid_cand_list)) {
2335 devinfo(usbdev, "pmkid candidate list indication: "
2336 "too short message (%i)", len);
2337 return;
2338 }
2339
2340 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2341 sizeof(struct ndis_80211_pmkid_candidate);
2342 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2343 offsetof(struct ndis_80211_status_indication, u);
2344
2345 if (len < expected_len) {
2346 devinfo(usbdev, "pmkid candidate list indication: "
2347 "list larger than buffer (%i < %i)",
2348 len, expected_len);
2349 return;
2350 }
2351
2352 cand_list = &indication->u.cand_list;
2353
2354 devinfo(usbdev, "pmkid candidate list indication: "
2355 "version %i, candidates %i",
2356 le32_to_cpu(cand_list->version),
2357 le32_to_cpu(cand_list->num_candidates));
2358
2359 if (le32_to_cpu(cand_list->version) != 1)
2360 return;
2361
2362 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2363 struct ndis_80211_pmkid_candidate *cand =
2364 &cand_list->candidate_list[i];
2365
2366 devdbg(usbdev, "cand[%i]: flags: 0x%08x, bssid: %pM",
2367 i, le32_to_cpu(cand->flags), cand->bssid);
2368
2369#if 0
2370 struct iw_pmkid_cand pcand;
2371 union iwreq_data wrqu;
2372
2373 memset(&pcand, 0, sizeof(pcand));
2374 if (le32_to_cpu(cand->flags) & 0x01)
2375 pcand.flags |= IW_PMKID_CAND_PREAUTH;
2376 pcand.index = i;
2377 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2378
2379 memset(&wrqu, 0, sizeof(wrqu));
2380 wrqu.data.length = sizeof(pcand);
2381 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2382 (u8 *)&pcand);
2383#endif
2384 }
2385}
2386
2387static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2388 struct rndis_indicate *msg, int buflen)
2389{
2390 struct ndis_80211_status_indication *indication;
2391 int len, offset;
2392
2393 offset = offsetof(struct rndis_indicate, status) +
2394 le32_to_cpu(msg->offset);
2395 len = le32_to_cpu(msg->length);
2396
2397 if (len < 8) {
2398 devinfo(usbdev, "media specific indication, "
2399 "ignore too short message (%i < 8)", len);
2400 return;
2401 }
2402
2403 if (offset + len > buflen) {
2404 devinfo(usbdev, "media specific indication, "
2405 "too large to fit to buffer (%i > %i)",
2406 offset + len, buflen);
2407 return;
2408 }
2409
2410 indication = (void *)((u8 *)msg + offset);
2411
2412 switch (le32_to_cpu(indication->status_type)) {
2413 case NDIS_80211_STATUSTYPE_RADIOSTATE:
2414 devinfo(usbdev, "radio state indication: %i",
2415 le32_to_cpu(indication->u.radio_status));
2416 return;
2417
2418 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
2419 devinfo(usbdev, "media stream mode indication: %i",
2420 le32_to_cpu(indication->u.media_stream_mode));
2421 return;
2422
2423 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2424 rndis_wlan_auth_indication(usbdev, indication, len);
2425 return;
2426
2427 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2428 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2429 return;
2430
2431 default:
2432 devinfo(usbdev, "media specific indication: "
2433 "unknown status type 0x%08x",
2434 le32_to_cpu(indication->status_type));
2435 }
2436}
2437
2438static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
2439{
2440 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2441 struct rndis_indicate *msg = ind;
2442
2443 switch (msg->status) {
2444 case RNDIS_STATUS_MEDIA_CONNECT:
2445 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2446
2447
2448
2449
2450
2451 devdbg(usbdev, "ignored OID_802_11_ADD_KEY triggered "
2452 "'media connect'");
2453 return;
2454 }
2455
2456 usbnet_pause_rx(usbdev);
2457
2458 devinfo(usbdev, "media connect");
2459
2460
2461 set_bit(WORK_LINK_UP, &priv->work_pending);
2462 queue_work(priv->workqueue, &priv->work);
2463 break;
2464
2465 case RNDIS_STATUS_MEDIA_DISCONNECT:
2466 devinfo(usbdev, "media disconnect");
2467
2468
2469 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2470 queue_work(priv->workqueue, &priv->work);
2471 break;
2472
2473 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2474 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2475 break;
2476
2477 default:
2478 devinfo(usbdev, "indication: 0x%08x",
2479 le32_to_cpu(msg->status));
2480 break;
2481 }
2482}
2483
2484static int rndis_wlan_get_caps(struct usbnet *usbdev)
2485{
2486 struct {
2487 __le32 num_items;
2488 __le32 items[8];
2489 } networks_supported;
2490 int len, retval, i, n;
2491 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2492
2493
2494 len = sizeof(networks_supported);
2495 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2496 &networks_supported, &len);
2497 if (retval >= 0) {
2498 n = le32_to_cpu(networks_supported.num_items);
2499 if (n > 8)
2500 n = 8;
2501 for (i = 0; i < n; i++) {
2502 switch (le32_to_cpu(networks_supported.items[i])) {
2503 case NDIS_80211_TYPE_FREQ_HOP:
2504 case NDIS_80211_TYPE_DIRECT_SEQ:
2505 priv->caps |= CAP_MODE_80211B;
2506 break;
2507 case NDIS_80211_TYPE_OFDM_A:
2508 priv->caps |= CAP_MODE_80211A;
2509 break;
2510 case NDIS_80211_TYPE_OFDM_G:
2511 priv->caps |= CAP_MODE_80211G;
2512 break;
2513 }
2514 }
2515 }
2516
2517 return retval;
2518}
2519
2520#define DEVICE_POLLER_JIFFIES (HZ)
2521static void rndis_device_poller(struct work_struct *work)
2522{
2523 struct rndis_wlan_private *priv =
2524 container_of(work, struct rndis_wlan_private,
2525 dev_poller_work.work);
2526 struct usbnet *usbdev = priv->usbdev;
2527 __le32 rssi, tmp;
2528 int len, ret, j;
2529 int update_jiffies = DEVICE_POLLER_JIFFIES;
2530 void *buf;
2531
2532
2533
2534
2535
2536 if (!is_associated(usbdev))
2537 goto end;
2538
2539 len = sizeof(rssi);
2540 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2541 if (ret == 0)
2542 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
2543
2544 devdbg(usbdev, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d",
2545 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
2546
2547
2548
2549
2550 if (priv->last_qual <= 25) {
2551
2552
2553
2554
2555 j = msecs_to_jiffies(priv->param_workaround_interval);
2556 if (j > DEVICE_POLLER_JIFFIES)
2557 j = DEVICE_POLLER_JIFFIES;
2558 else if (j <= 0)
2559 j = 1;
2560 update_jiffies = j;
2561
2562
2563
2564
2565 tmp = cpu_to_le32(1);
2566 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2567 sizeof(tmp));
2568
2569 len = CONTROL_BUFFER_SIZE;
2570 buf = kmalloc(len, GFP_KERNEL);
2571 if (!buf)
2572 goto end;
2573
2574 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2575 kfree(buf);
2576 }
2577
2578end:
2579 if (update_jiffies >= HZ)
2580 update_jiffies = round_jiffies_relative(update_jiffies);
2581 else {
2582 j = round_jiffies_relative(update_jiffies);
2583 if (abs(j - update_jiffies) <= 10)
2584 update_jiffies = j;
2585 }
2586
2587 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
2588 update_jiffies);
2589}
2590
2591
2592
2593
2594static int bcm4320a_early_init(struct usbnet *usbdev)
2595{
2596
2597
2598
2599
2600 return 0;
2601}
2602
2603static int bcm4320b_early_init(struct usbnet *usbdev)
2604{
2605 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2606 char buf[8];
2607
2608
2609
2610
2611
2612 priv->param_country[0] = modparam_country[0];
2613 priv->param_country[1] = modparam_country[1];
2614 priv->param_country[2] = 0;
2615 priv->param_frameburst = modparam_frameburst;
2616 priv->param_afterburner = modparam_afterburner;
2617 priv->param_power_save = modparam_power_save;
2618 priv->param_power_output = modparam_power_output;
2619 priv->param_roamtrigger = modparam_roamtrigger;
2620 priv->param_roamdelta = modparam_roamdelta;
2621
2622 priv->param_country[0] = toupper(priv->param_country[0]);
2623 priv->param_country[1] = toupper(priv->param_country[1]);
2624
2625 if (!strcmp(priv->param_country, "EU"))
2626 strcpy(priv->param_country, "FI");
2627
2628 if (priv->param_power_save < 0)
2629 priv->param_power_save = 0;
2630 else if (priv->param_power_save > 2)
2631 priv->param_power_save = 2;
2632
2633 if (priv->param_power_output < 0)
2634 priv->param_power_output = 0;
2635 else if (priv->param_power_output > 3)
2636 priv->param_power_output = 3;
2637
2638 if (priv->param_roamtrigger < -80)
2639 priv->param_roamtrigger = -80;
2640 else if (priv->param_roamtrigger > -60)
2641 priv->param_roamtrigger = -60;
2642
2643 if (priv->param_roamdelta < 0)
2644 priv->param_roamdelta = 0;
2645 else if (priv->param_roamdelta > 2)
2646 priv->param_roamdelta = 2;
2647
2648 if (modparam_workaround_interval < 0)
2649 priv->param_workaround_interval = 500;
2650 else
2651 priv->param_workaround_interval = modparam_workaround_interval;
2652
2653 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2654 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2655 priv->param_frameburst ? "1" : "0");
2656 rndis_set_config_parameter_str(usbdev, "Afterburner",
2657 priv->param_afterburner ? "1" : "0");
2658 sprintf(buf, "%d", priv->param_power_save);
2659 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2660 sprintf(buf, "%d", priv->param_power_output);
2661 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2662 sprintf(buf, "%d", priv->param_roamtrigger);
2663 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2664 sprintf(buf, "%d", priv->param_roamdelta);
2665 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2666
2667 return 0;
2668}
2669
2670
2671static const struct net_device_ops rndis_wlan_netdev_ops = {
2672 .ndo_open = usbnet_open,
2673 .ndo_stop = usbnet_stop,
2674 .ndo_start_xmit = usbnet_start_xmit,
2675 .ndo_tx_timeout = usbnet_tx_timeout,
2676 .ndo_set_mac_address = eth_mac_addr,
2677 .ndo_validate_addr = eth_validate_addr,
2678 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
2679};
2680
2681static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
2682{
2683 struct wiphy *wiphy;
2684 struct rndis_wlan_private *priv;
2685 int retval, len;
2686 __le32 tmp;
2687
2688
2689
2690
2691
2692 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
2693 if (!wiphy)
2694 return -ENOMEM;
2695
2696 priv = wiphy_priv(wiphy);
2697 usbdev->net->ieee80211_ptr = &priv->wdev;
2698 priv->wdev.wiphy = wiphy;
2699 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2700
2701
2702
2703
2704 usbdev->driver_priv = priv;
2705 priv->usbdev = usbdev;
2706
2707 mutex_init(&priv->command_lock);
2708
2709
2710 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2711 INIT_WORK(&priv->work, rndis_wlan_worker);
2712 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
2713 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2714
2715
2716 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2717 if (retval < 0)
2718 goto fail;
2719
2720
2721
2722
2723
2724
2725
2726
2727 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
2728
2729 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2730 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2731 sizeof(tmp));
2732
2733 len = sizeof(tmp);
2734 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2735 &len);
2736 priv->multicast_size = le32_to_cpu(tmp);
2737 if (retval < 0 || priv->multicast_size < 0)
2738 priv->multicast_size = 0;
2739 if (priv->multicast_size > 0)
2740 usbdev->net->flags |= IFF_MULTICAST;
2741 else
2742 usbdev->net->flags &= ~IFF_MULTICAST;
2743
2744
2745 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2746 wiphy->privid = rndis_wiphy_privid;
2747 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2748 | BIT(NL80211_IFTYPE_ADHOC);
2749 wiphy->max_scan_ssids = 1;
2750
2751
2752 rndis_wlan_get_caps(usbdev);
2753
2754 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2755 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2756 priv->band.channels = priv->channels;
2757 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2758 priv->band.bitrates = priv->rates;
2759 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2760 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2761 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2762
2763 memcpy(priv->cipher_suites, rndis_cipher_suites,
2764 sizeof(rndis_cipher_suites));
2765 wiphy->cipher_suites = priv->cipher_suites;
2766 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
2767
2768 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2769
2770 if (wiphy_register(wiphy)) {
2771 retval = -ENODEV;
2772 goto fail;
2773 }
2774
2775 set_default_iw_params(usbdev);
2776
2777
2778 rndis_set_wiphy_params(wiphy,
2779 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
2780
2781
2782 priv->radio_on = true;
2783 disassociate(usbdev, true);
2784 netif_carrier_off(usbdev->net);
2785
2786 return 0;
2787
2788fail:
2789 cancel_delayed_work_sync(&priv->dev_poller_work);
2790 cancel_delayed_work_sync(&priv->scan_work);
2791 cancel_work_sync(&priv->work);
2792 flush_workqueue(priv->workqueue);
2793 destroy_workqueue(priv->workqueue);
2794
2795 wiphy_free(wiphy);
2796 return retval;
2797}
2798
2799static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2800{
2801 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2802
2803
2804 disassociate(usbdev, false);
2805
2806 cancel_delayed_work_sync(&priv->dev_poller_work);
2807 cancel_delayed_work_sync(&priv->scan_work);
2808 cancel_work_sync(&priv->work);
2809 flush_workqueue(priv->workqueue);
2810 destroy_workqueue(priv->workqueue);
2811
2812 if (priv && priv->wpa_ie_len)
2813 kfree(priv->wpa_ie);
2814
2815 rndis_unbind(usbdev, intf);
2816
2817 wiphy_unregister(priv->wdev.wiphy);
2818 wiphy_free(priv->wdev.wiphy);
2819}
2820
2821static int rndis_wlan_reset(struct usbnet *usbdev)
2822{
2823 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2824 int retval;
2825
2826 devdbg(usbdev, "rndis_wlan_reset");
2827
2828 retval = rndis_reset(usbdev);
2829 if (retval)
2830 devwarn(usbdev, "rndis_reset() failed: %d", retval);
2831
2832
2833
2834 set_multicast_list(usbdev);
2835
2836 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
2837 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
2838
2839 return deauthenticate(usbdev);
2840}
2841
2842static int rndis_wlan_stop(struct usbnet *usbdev)
2843{
2844 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2845 int retval;
2846 __le32 filter;
2847
2848 devdbg(usbdev, "rndis_wlan_stop");
2849
2850 retval = disassociate(usbdev, false);
2851
2852 priv->work_pending = 0;
2853 cancel_delayed_work_sync(&priv->dev_poller_work);
2854 cancel_delayed_work_sync(&priv->scan_work);
2855 cancel_work_sync(&priv->work);
2856 flush_workqueue(priv->workqueue);
2857
2858 if (priv->scan_request) {
2859 cfg80211_scan_done(priv->scan_request, true);
2860 priv->scan_request = NULL;
2861 }
2862
2863
2864
2865 filter = 0;
2866 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
2867 sizeof(filter));
2868
2869 return retval;
2870}
2871
2872static const struct driver_info bcm4320b_info = {
2873 .description = "Wireless RNDIS device, BCM4320b based",
2874 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2875 FLAG_AVOID_UNLINK_URBS,
2876 .bind = rndis_wlan_bind,
2877 .unbind = rndis_wlan_unbind,
2878 .status = rndis_status,
2879 .rx_fixup = rndis_rx_fixup,
2880 .tx_fixup = rndis_tx_fixup,
2881 .reset = rndis_wlan_reset,
2882 .stop = rndis_wlan_stop,
2883 .early_init = bcm4320b_early_init,
2884 .indication = rndis_wlan_indication,
2885};
2886
2887static const struct driver_info bcm4320a_info = {
2888 .description = "Wireless RNDIS device, BCM4320a based",
2889 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2890 FLAG_AVOID_UNLINK_URBS,
2891 .bind = rndis_wlan_bind,
2892 .unbind = rndis_wlan_unbind,
2893 .status = rndis_status,
2894 .rx_fixup = rndis_rx_fixup,
2895 .tx_fixup = rndis_tx_fixup,
2896 .reset = rndis_wlan_reset,
2897 .stop = rndis_wlan_stop,
2898 .early_init = bcm4320a_early_init,
2899 .indication = rndis_wlan_indication,
2900};
2901
2902static const struct driver_info rndis_wlan_info = {
2903 .description = "Wireless RNDIS device",
2904 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2905 FLAG_AVOID_UNLINK_URBS,
2906 .bind = rndis_wlan_bind,
2907 .unbind = rndis_wlan_unbind,
2908 .status = rndis_status,
2909 .rx_fixup = rndis_rx_fixup,
2910 .tx_fixup = rndis_tx_fixup,
2911 .reset = rndis_wlan_reset,
2912 .stop = rndis_wlan_stop,
2913 .early_init = bcm4320a_early_init,
2914 .indication = rndis_wlan_indication,
2915};
2916
2917
2918
2919static const struct usb_device_id products [] = {
2920#define RNDIS_MASTER_INTERFACE \
2921 .bInterfaceClass = USB_CLASS_COMM, \
2922 .bInterfaceSubClass = 2 , \
2923 .bInterfaceProtocol = 0x0ff
2924
2925
2926
2927
2928{
2929 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2930 | USB_DEVICE_ID_MATCH_DEVICE,
2931 .idVendor = 0x0411,
2932 .idProduct = 0x00bc,
2933 RNDIS_MASTER_INTERFACE,
2934 .driver_info = (unsigned long) &bcm4320b_info,
2935}, {
2936 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2937 | USB_DEVICE_ID_MATCH_DEVICE,
2938 .idVendor = 0x0baf,
2939 .idProduct = 0x011b,
2940 RNDIS_MASTER_INTERFACE,
2941 .driver_info = (unsigned long) &bcm4320b_info,
2942}, {
2943 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2944 | USB_DEVICE_ID_MATCH_DEVICE,
2945 .idVendor = 0x050d,
2946 .idProduct = 0x011b,
2947 RNDIS_MASTER_INTERFACE,
2948 .driver_info = (unsigned long) &bcm4320b_info,
2949}, {
2950 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2951 | USB_DEVICE_ID_MATCH_DEVICE,
2952 .idVendor = 0x1799,
2953 .idProduct = 0x011b,
2954 RNDIS_MASTER_INTERFACE,
2955 .driver_info = (unsigned long) &bcm4320b_info,
2956}, {
2957 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2958 | USB_DEVICE_ID_MATCH_DEVICE,
2959 .idVendor = 0x13b1,
2960 .idProduct = 0x0014,
2961 RNDIS_MASTER_INTERFACE,
2962 .driver_info = (unsigned long) &bcm4320b_info,
2963}, {
2964 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2965 | USB_DEVICE_ID_MATCH_DEVICE,
2966 .idVendor = 0x13b1,
2967 .idProduct = 0x0026,
2968 RNDIS_MASTER_INTERFACE,
2969 .driver_info = (unsigned long) &bcm4320b_info,
2970}, {
2971 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2972 | USB_DEVICE_ID_MATCH_DEVICE,
2973 .idVendor = 0x0b05,
2974 .idProduct = 0x1717,
2975 RNDIS_MASTER_INTERFACE,
2976 .driver_info = (unsigned long) &bcm4320b_info,
2977}, {
2978 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2979 | USB_DEVICE_ID_MATCH_DEVICE,
2980 .idVendor = 0x0a5c,
2981 .idProduct = 0xd11b,
2982 RNDIS_MASTER_INTERFACE,
2983 .driver_info = (unsigned long) &bcm4320b_info,
2984}, {
2985 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2986 | USB_DEVICE_ID_MATCH_DEVICE,
2987 .idVendor = 0x1690,
2988 .idProduct = 0x0715,
2989 RNDIS_MASTER_INTERFACE,
2990 .driver_info = (unsigned long) &bcm4320b_info,
2991},
2992
2993
2994
2995
2996{
2997 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2998 | USB_DEVICE_ID_MATCH_DEVICE,
2999 .idVendor = 0x13b1,
3000 .idProduct = 0x000e,
3001 RNDIS_MASTER_INTERFACE,
3002 .driver_info = (unsigned long) &bcm4320a_info,
3003}, {
3004 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3005 | USB_DEVICE_ID_MATCH_DEVICE,
3006 .idVendor = 0x0baf,
3007 .idProduct = 0x0111,
3008 RNDIS_MASTER_INTERFACE,
3009 .driver_info = (unsigned long) &bcm4320a_info,
3010}, {
3011 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3012 | USB_DEVICE_ID_MATCH_DEVICE,
3013 .idVendor = 0x0411,
3014 .idProduct = 0x004b,
3015 RNDIS_MASTER_INTERFACE,
3016 .driver_info = (unsigned long) &bcm4320a_info,
3017},
3018
3019
3020
3021{
3022
3023 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 , 0x0ff),
3024 .driver_info = (unsigned long) &rndis_wlan_info,
3025}, {
3026
3027 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3028 .driver_info = (unsigned long) &rndis_wlan_info,
3029},
3030 { },
3031};
3032MODULE_DEVICE_TABLE(usb, products);
3033
3034static struct usb_driver rndis_wlan_driver = {
3035 .name = "rndis_wlan",
3036 .id_table = products,
3037 .probe = usbnet_probe,
3038 .disconnect = usbnet_disconnect,
3039 .suspend = usbnet_suspend,
3040 .resume = usbnet_resume,
3041};
3042
3043static int __init rndis_wlan_init(void)
3044{
3045 return usb_register(&rndis_wlan_driver);
3046}
3047module_init(rndis_wlan_init);
3048
3049static void __exit rndis_wlan_exit(void)
3050{
3051 usb_deregister(&rndis_wlan_driver);
3052}
3053module_exit(rndis_wlan_exit);
3054
3055MODULE_AUTHOR("Bjorge Dijkstra");
3056MODULE_AUTHOR("Jussi Kivilinna");
3057MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3058MODULE_LICENSE("GPL");
3059
3060
