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mac80211: Fix missing kernel-doc notation
[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / rndis_wlan.c
CommitLineData
bf164cc0
JK		 1/*
2 * Driver for RNDIS based wireless USB devices.
3 *
4 * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
9656e85b 5 * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
bf164cc0
JK		 6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 * Portions of this file are based on NDISwrapper project,
22 * Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
23 * http://ndiswrapper.sourceforge.net/
24 */
25
26// #define DEBUG // error path messages, extra info
27// #define VERBOSE // more; success messages
28
29#include <linux/module.h>
30#include <linux/init.h>
31#include <linux/netdevice.h>
32#include <linux/etherdevice.h>
33#include <linux/ethtool.h>
34#include <linux/workqueue.h>
35#include <linux/mutex.h>
36#include <linux/mii.h>
37#include <linux/usb.h>
38#include <linux/usb/cdc.h>
39#include <linux/wireless.h>
2c706002 40#include <linux/ieee80211.h>
bf164cc0
JK		 41#include <linux/if_arp.h>
42#include <linux/ctype.h>
43#include <linux/spinlock.h>
44#include <net/iw_handler.h>
5c8fa4f7 45#include <net/cfg80211.h>
bf164cc0
JK		 46#include <linux/usb/usbnet.h>
47#include <linux/usb/rndis_host.h>
48
49
50/* NOTE: All these are settings for Broadcom chipset */
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/* various RNDIS OID defs */
35c26c2c
HH		 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
35c26c2c
HH		 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)
bf164cc0
JK		 131
132
133/* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
134#define WL_NOISE -96 /* typical noise level in dBm */
135#define WL_SIGMAX -32 /* typical maximum signal level in dBm */
136
137
138/* Assume that Broadcom 4320 (only chipset at time of writing known to be
139 * based on wireless rndis) has default txpower of 13dBm.
140 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
222ec50a
JK		 141 * 100% : 20 mW ~ 13dBm
142 * 75% : 15 mW ~ 12dBm
143 * 50% : 10 mW ~ 10dBm
144 * 25% : 5 mW ~ 7dBm
bf164cc0 145 */
222ec50a
JK		 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
bf164cc0
JK		 150
151
152/* codes for "status" field of completion messages */
35c26c2c
HH		 153#define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
154#define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
bf164cc0
JK		 155
156
157/* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
158 * slightly modified for datatype endianess, etc
159 */
160#define NDIS_802_11_LENGTH_SSID 32
161#define NDIS_802_11_LENGTH_RATES 8
162#define NDIS_802_11_LENGTH_RATES_EX 16
163
1e41e1d2 164enum ndis_80211_net_type {
aa18294a
JK		 165 NDIS_80211_TYPE_FREQ_HOP,
166 NDIS_80211_TYPE_DIRECT_SEQ,
167 NDIS_80211_TYPE_OFDM_A,
168 NDIS_80211_TYPE_OFDM_G
1e41e1d2
JK		 169};
170
171enum ndis_80211_net_infra {
aa18294a
JK		 172 NDIS_80211_INFRA_ADHOC,
173 NDIS_80211_INFRA_INFRA,
174 NDIS_80211_INFRA_AUTO_UNKNOWN
1e41e1d2
JK		 175};
176
177enum ndis_80211_auth_mode {
aa18294a
JK		 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
1e41e1d2
JK		 186};
187
188enum ndis_80211_encr_status {
aa18294a
JK		 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
1e41e1d2
JK		 197};
198
199enum ndis_80211_priv_filter {
aa18294a
JK		 200 NDIS_80211_PRIV_ACCEPT_ALL,
201 NDIS_80211_PRIV_8021X_WEP
1e41e1d2
JK		 202};
203
030645ac
JK		 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
b4703a2e 222enum ndis_80211_addkey_bits {
aa18294a
JK		 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)
b4703a2e
JK		 227};
228
229enum ndis_80211_addwep_bits {
aa18294a
JK		 230 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
231 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
b4703a2e
JK		 232};
233
030645ac
JK		 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 {
53d27eaf
JK		 256 __le32 media_stream_mode;
257 __le32 radio_status;
030645ac
JK		 258 struct ndis_80211_auth_request auth_request[0];
259 struct ndis_80211_pmkid_cand_list cand_list;
260 } u;
261} __attribute__((packed));
262
1e41e1d2 263struct ndis_80211_ssid {
461b3f2a
JK		 264 __le32 length;
265 u8 essid[NDIS_802_11_LENGTH_SSID];
bf164cc0
JK		 266} __attribute__((packed));
267
1e41e1d2 268struct ndis_80211_conf_freq_hop {
461b3f2a
JK		 269 __le32 length;
270 __le32 hop_pattern;
271 __le32 hop_set;
272 __le32 dwell_time;
bf164cc0
JK		 273} __attribute__((packed));
274
1e41e1d2 275struct ndis_80211_conf {
461b3f2a
JK		 276 __le32 length;
277 __le32 beacon_period;
278 __le32 atim_window;
279 __le32 ds_config;
280 struct ndis_80211_conf_freq_hop fh_config;
bf164cc0
JK		 281} __attribute__((packed));
282
1e41e1d2 283struct ndis_80211_bssid_ex {
461b3f2a
JK		 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];
bf164cc0
JK		 296} __attribute__((packed));
297
1e41e1d2 298struct ndis_80211_bssid_list_ex {
461b3f2a
JK		 299 __le32 num_items;
300 struct ndis_80211_bssid_ex bssid[0];
bf164cc0
JK		 301} __attribute__((packed));
302
1e41e1d2 303struct ndis_80211_fixed_ies {
461b3f2a
JK		 304 u8 timestamp[8];
305 __le16 beacon_interval;
306 __le16 capabilities;
bf164cc0
JK		 307} __attribute__((packed));
308
1e41e1d2 309struct ndis_80211_wep_key {
461b3f2a
JK		 310 __le32 size;
311 __le32 index;
312 __le32 length;
313 u8 material[32];
bf164cc0
JK		 314} __attribute__((packed));
315
1e41e1d2 316struct ndis_80211_key {
461b3f2a
JK		 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];
bf164cc0
JK		 324} __attribute__((packed));
325
1e41e1d2 326struct ndis_80211_remove_key {
461b3f2a
JK		 327 __le32 size;
328 __le32 index;
329 u8 bssid[6];
9d40934e 330 u8 padding[2];
bf164cc0
JK		 331} __attribute__((packed));
332
1e41e1d2 333struct ndis_config_param {
461b3f2a
JK		 334 __le32 name_offs;
335 __le32 name_length;
336 __le32 type;
337 __le32 value_offs;
338 __le32 value_length;
bf164cc0
JK		 339} __attribute__((packed));
340
4364623c
SA		 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
bf164cc0
JK		 361/*
362 * private data
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
bf164cc0 370
6010ce07
JK		 371#define WORK_LINK_UP (1<<0)
372#define WORK_LINK_DOWN (1<<1)
373#define WORK_SET_MULTICAST_LIST (1<<2)
bf164cc0 374
5c52323e
JK		 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
90d07349
JK		 384#define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
385
5c8fa4f7
JL		 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
4a7f13ee
JK		 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
b7cfc5b3
JK		 425struct rndis_wlan_encr_key {
426 int len;
84bf8400 427 u32 cipher;
b7cfc5b3
JK		 428 u8 material[32];
429 u8 bssid[ETH_ALEN];
430 bool pairwise;
431 bool tx_key;
432};
433
bf164cc0 434/* RNDIS device private data */
582241a0 435struct rndis_wlan_private {
bf164cc0
JK		 436 struct usbnet *usbdev;
437
5c8fa4f7
JL		 438 struct wireless_dev wdev;
439
71a7b26d
JK		 440 struct cfg80211_scan_request *scan_request;
441
bf164cc0 442 struct workqueue_struct *workqueue;
305e243e 443 struct delayed_work dev_poller_work;
71a7b26d 444 struct delayed_work scan_work;
bf164cc0
JK		 445 struct work_struct work;
446 struct mutex command_lock;
bf164cc0 447 unsigned long work_pending;
8b89a288 448 int last_qual;
bf164cc0 449
5c8fa4f7
JL		 450 struct ieee80211_supported_band band;
451 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
452 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
4a7f13ee 453 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
5c8fa4f7 454
bf164cc0
JK		 455 int caps;
456 int multicast_size;
457
458 /* module parameters */
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 /* hardware state */
051ae0bf 469 bool radio_on;
bf164cc0 470 int infra_mode;
5c52323e 471 bool connected;
8b89a288 472 u8 bssid[ETH_ALEN];
1e41e1d2 473 struct ndis_80211_ssid essid;
5f81ff5a 474 __le32 current_command_oid;
bf164cc0
JK		 475
476 /* encryption stuff */
477 int encr_tx_key_index;
b7cfc5b3 478 struct rndis_wlan_encr_key encr_keys[4];
5c52323e 479 enum nl80211_auth_type wpa_auth_type;
bf164cc0
JK		 480 int wpa_version;
481 int wpa_keymgmt;
bf164cc0
JK		 482 int wpa_ie_len;
483 u8 *wpa_ie;
484 int wpa_cipher_pair;
485 int wpa_cipher_group;
90d07349
JK		 486
487 u8 command_buffer[COMMAND_BUFFER_SIZE];
bf164cc0
JK		 488};
489
964c1d41
JL		 490/*
491 * cfg80211 ops
492 */
e36d56b6
JB		 493static int rndis_change_virtual_intf(struct wiphy *wiphy,
494 struct net_device *dev,
964c1d41
JL		 495 enum nl80211_iftype type, u32 *flags,
496 struct vif_params *params);
497
71a7b26d
JK		 498static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
499 struct cfg80211_scan_request *request);
500
d75ec2b7
JK		 501static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
502
222ec50a
JK		 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
5c52323e
JK		 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
5554adbe
JK		 518static int rndis_set_channel(struct wiphy *wiphy,
519 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
520
84bf8400
JK		 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
8b89a288
JK		 531static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
532 u8 *mac, struct station_info *sinfo);
533
d695df90
JK		 534static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
535 int idx, u8 *mac, struct station_info *sinfo);
536
caa6dfad 537static struct cfg80211_ops rndis_config_ops = {
964c1d41 538 .change_virtual_intf = rndis_change_virtual_intf,
71a7b26d 539 .scan = rndis_scan,
d75ec2b7 540 .set_wiphy_params = rndis_set_wiphy_params,
222ec50a
JK		 541 .set_tx_power = rndis_set_tx_power,
542 .get_tx_power = rndis_get_tx_power,
5c52323e
JK		 543 .connect = rndis_connect,
544 .disconnect = rndis_disconnect,
545 .join_ibss = rndis_join_ibss,
546 .leave_ibss = rndis_leave_ibss,
5554adbe 547 .set_channel = rndis_set_channel,
84bf8400
JK		 548 .add_key = rndis_add_key,
549 .del_key = rndis_del_key,
550 .set_default_key = rndis_set_default_key,
8b89a288 551 .get_station = rndis_get_station,
d695df90 552 .dump_station = rndis_dump_station,
964c1d41 553};
bf164cc0 554
caa6dfad 555static void *rndis_wiphy_privid = &rndis_wiphy_privid;
bf164cc0 556
bf164cc0 557
582241a0 558static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
bf164cc0 559{
582241a0 560 return (struct rndis_wlan_private *)dev->driver_priv;
bf164cc0
JK		 561}
562
222ec50a 563static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
bf164cc0 564{
222ec50a
JK		 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 }
bf164cc0
JK		 576}
577
b7cfc5b3
JK		 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
5c52323e
JK		 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
27b7b5c1
JK		 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 /* from rndis_host.h */
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 /* from rndis_wlan.c */
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
bf164cc0
JK		 674/* translate error code */
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
bf164cc0
JK		 697static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
698{
582241a0 699 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
bf164cc0
JK		 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;
90d07349
JK		 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
bf164cc0
JK		 722 memset(u.get, 0, sizeof *u.get);
723 u.get->msg_type = RNDIS_MSG_QUERY;
35c26c2c 724 u.get->msg_len = cpu_to_le32(sizeof *u.get);
bf164cc0
JK		 725 u.get->oid = oid;
726
5f81ff5a 727 priv->current_command_oid = oid;
818727ba 728 ret = rndis_command(dev, u.header, buflen);
5f81ff5a 729 priv->current_command_oid = 0;
27b7b5c1
JK		 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
bf164cc0
JK		 735 if (ret == 0) {
736 ret = le32_to_cpu(u.get_c->len);
5fd8f250
JK		 737 if (ret > *len)
738 *len = ret;
bf164cc0
JK		 739 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
740 ret = rndis_error_status(u.get_c->status);
27b7b5c1
JK		 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);
bf164cc0
JK		 746 }
747
90d07349
JK		 748 mutex_unlock(&priv->command_lock);
749
750 if (u.buf != priv->command_buffer)
751 kfree(u.buf);
bf164cc0
JK		 752 return ret;
753}
754
bf164cc0
JK		 755static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
756{
582241a0 757 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
bf164cc0
JK		 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;
90d07349
JK		 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);
bf164cc0
JK		 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);
35c26c2c
HH		 785 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
786 u.set->handle = cpu_to_le32(0);
bf164cc0
JK		 787 memcpy(u.buf + sizeof(*u.set), data, len);
788
5f81ff5a 789 priv->current_command_oid = oid;
818727ba 790 ret = rndis_command(dev, u.header, buflen);
5f81ff5a 791 priv->current_command_oid = 0;
27b7b5c1
JK		 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) {
bf164cc0
JK		 798 ret = rndis_error_status(u.set_c->status);
799
27b7b5c1
JK		 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
90d07349
JK		 806 mutex_unlock(&priv->command_lock);
807
808 if (u.buf != priv->command_buffer)
809 kfree(u.buf);
bf164cc0
JK		 810 return ret;
811}
812
7eaab708
JK		 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));
5f81ff5a 825 priv->current_command_oid = 0;
7eaab708
JK		 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
bf164cc0
JK		 835/*
836 * Specs say that we can only set config parameters only soon after device
837 * initialization.
838 * value_type: 0 = u32, 2 = unicode string
839 */
840static int rndis_set_config_parameter(struct usbnet *dev, char *param,
841 int value_type, void *value)
842{
1e41e1d2 843 struct ndis_config_param *infobuf;
bf164cc0
JK		 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 /* extra 12 bytes are for padding (debug output) */
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
461b3f2a
JK		 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);
bf164cc0
JK		 883
884 /* simple string to unicode string conversion */
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)
6d60f9df 912 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
bf164cc0
JK		 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{
c5c4fe90 921 return rndis_set_config_parameter(dev, param, 2, value);
bf164cc0
JK		 922}
923
bf164cc0
JK		 924/*
925 * data conversion functions
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
bf164cc0
JK		 933/*
934 * common functions
935 */
9f77ccab 936static int set_infra_mode(struct usbnet *usbdev, int mode);
b7cfc5b3 937static void restore_keys(struct usbnet *usbdev);
db0dd396 938static int rndis_check_bssid_list(struct usbnet *usbdev);
bf164cc0 939
1e41e1d2 940static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
bf164cc0 941{
582241a0 942 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 943 int ret;
944
945 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
5c52323e
JK		 946 if (ret < 0) {
947 devwarn(usbdev, "setting SSID failed (%08X)", ret);
948 return ret;
949 }
bf164cc0
JK		 950 if (ret == 0) {
951 memcpy(&priv->essid, ssid, sizeof(priv->essid));
051ae0bf
JK		 952 priv->radio_on = true;
953 devdbg(usbdev, "set_essid: radio_on = true");
bf164cc0
JK		 954 }
955
956 return ret;
957}
958
5c52323e
JK		 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}
bf164cc0
JK		 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
4364623c
SA		 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}
bf164cc0 998
5c52323e 999static bool is_associated(struct usbnet *usbdev)
bf164cc0 1000{
5c52323e 1001 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1002 u8 bssid[ETH_ALEN];
1003 int ret;
1004
5c52323e
JK		 1005 if (!priv->radio_on)
1006 return false;
1007
bf164cc0
JK		 1008 ret = get_bssid(usbdev, bssid);
1009
7b1fff99 1010 return (ret == 0 && !is_zero_ether_addr(bssid));
bf164cc0
JK		 1011}
1012
051ae0bf 1013static int disassociate(struct usbnet *usbdev, bool reset_ssid)
bf164cc0 1014{
582241a0 1015 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1e41e1d2 1016 struct ndis_80211_ssid ssid;
bf164cc0
JK		 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) {
051ae0bf
JK		 1022 priv->radio_on = false;
1023 devdbg(usbdev, "disassociate: radio_on = false");
bf164cc0
JK		 1024
1025 if (reset_ssid)
1026 msleep(100);
1027 }
1028 }
1029
1030 /* disassociate causes radio to be turned off; if reset_ssid
1031 * is given, set random ssid to enable radio */
1032 if (reset_ssid) {
9f77ccab
JK		 1033 /* Set device to infrastructure mode so we don't get ad-hoc
1034 * 'media connect' indications with the random ssid.
1035 */
1036 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1037
461b3f2a
JK		 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);
bf164cc0
JK		 1044 ret = set_essid(usbdev, &ssid);
1045 }
1046 return ret;
1047}
1048
5c52323e
JK		 1049static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1050 enum nl80211_auth_type auth_type, int keymgmt)
bf164cc0 1051{
582241a0 1052 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1053 __le32 tmp;
1054 int auth_mode, ret;
1055
1056 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
5c52323e 1057 "keymgmt=0x%x", wpa_version, auth_type, keymgmt);
bf164cc0 1058
5c52323e
JK		 1059 if (wpa_version & NL80211_WPA_VERSION_2) {
1060 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
aa18294a 1061 auth_mode = NDIS_80211_AUTH_WPA2;
bf164cc0 1062 else
aa18294a 1063 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
5c52323e
JK		 1064 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1065 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
aa18294a 1066 auth_mode = NDIS_80211_AUTH_WPA;
5c52323e 1067 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
aa18294a 1068 auth_mode = NDIS_80211_AUTH_WPA_PSK;
bf164cc0 1069 else
aa18294a 1070 auth_mode = NDIS_80211_AUTH_WPA_NONE;
5c52323e
JK		 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)
aa18294a 1074 auth_mode = NDIS_80211_AUTH_OPEN;
634a555c
JK		 1075 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1076 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
5c52323e
JK		 1077 else
1078 return -ENOTSUPP;
bf164cc0
JK		 1079
1080 tmp = cpu_to_le32(auth_mode);
1081 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1082 sizeof(tmp));
1083 if (ret != 0) {
1084 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
1085 return ret;
1086 }
1087
1088 priv->wpa_version = wpa_version;
5c52323e
JK		 1089 priv->wpa_auth_type = auth_type;
1090 priv->wpa_keymgmt = keymgmt;
1091
bf164cc0
JK		 1092 return 0;
1093}
1094
bf164cc0
JK		 1095static int set_priv_filter(struct usbnet *usbdev)
1096{
582241a0 1097 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1098 __le32 tmp;
1099
1100 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
1101
5c52323e
JK		 1102 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1103 priv->wpa_version & NL80211_WPA_VERSION_1)
aa18294a 1104 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
bf164cc0 1105 else
aa18294a 1106 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
bf164cc0
JK		 1107
1108 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1109 sizeof(tmp));
1110}
1111
bf164cc0
JK		 1112static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1113{
582241a0 1114 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1115 __le32 tmp;
1116 int encr_mode, ret;
1117
1118 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
5c52323e 1119 pairwise, groupwise);
bf164cc0 1120
5c52323e 1121 if (pairwise & RNDIS_WLAN_ALG_CCMP)
aa18294a 1122 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
5c52323e 1123 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
aa18294a 1124 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
5c52323e 1125 else if (pairwise & RNDIS_WLAN_ALG_WEP)
aa18294a 1126 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
5c52323e 1127 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
aa18294a 1128 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
5c52323e 1129 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
aa18294a 1130 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
bf164cc0 1131 else
aa18294a 1132 encr_mode = NDIS_80211_ENCR_DISABLED;
bf164cc0
JK		 1133
1134 tmp = cpu_to_le32(encr_mode);
1135 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1136 sizeof(tmp));
1137 if (ret != 0) {
1138 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
1139 return ret;
1140 }
1141
1142 priv->wpa_cipher_pair = pairwise;
1143 priv->wpa_cipher_group = groupwise;
1144 return 0;
1145}
1146
bf164cc0
JK		 1147static int set_infra_mode(struct usbnet *usbdev, int mode)
1148{
582241a0 1149 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 1150 __le32 tmp;
b7cfc5b3 1151 int ret;
bf164cc0
JK		 1152
1153 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
1154
1155 tmp = cpu_to_le32(mode);
1156 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1157 sizeof(tmp));
1158 if (ret != 0) {
1159 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
1160 return ret;
1161 }
1162
1163 /* NDIS drivers clear keys when infrastructure mode is
1164 * changed. But Linux tools assume otherwise. So set the
1165 * keys */
b7cfc5b3 1166 restore_keys(usbdev);
bf164cc0
JK		 1167
1168 priv->infra_mode = mode;
1169 return 0;
1170}
1171
d75ec2b7
JK		 1172static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1173{
1174 __le32 tmp;
1175
1176 devdbg(usbdev, "set_rts_threshold %i", rts_threshold);
1177
1178 if (rts_threshold < 0 || rts_threshold > 2347)
1179 rts_threshold = 2347;
1180
1181 tmp = cpu_to_le32(rts_threshold);
1182 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1183 sizeof(tmp));
1184}
1185
d75ec2b7
JK		 1186static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1187{
1188 __le32 tmp;
1189
1190 devdbg(usbdev, "set_frag_threshold %i", frag_threshold);
1191
1192 if (frag_threshold < 256 || frag_threshold > 2346)
1193 frag_threshold = 2346;
1194
1195 tmp = cpu_to_le32(frag_threshold);
1196 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1197 sizeof(tmp));
1198}
1199
bf164cc0
JK		 1200static void set_default_iw_params(struct usbnet *usbdev)
1201{
aa18294a 1202 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
5c52323e
JK		 1203 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1204 RNDIS_WLAN_KEY_MGMT_NONE);
bf164cc0 1205 set_priv_filter(usbdev);
5c52323e 1206 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
bf164cc0
JK		 1207}
1208
bf164cc0
JK		 1209static int deauthenticate(struct usbnet *usbdev)
1210{
1211 int ret;
1212
051ae0bf 1213 ret = disassociate(usbdev, true);
bf164cc0
JK		 1214 set_default_iw_params(usbdev);
1215 return ret;
1216}
1217
5c52323e
JK		 1218static int set_channel(struct usbnet *usbdev, int channel)
1219{
1220 struct ndis_80211_conf config;
1221 unsigned int dsconfig;
1222 int len, ret;
1223
1224 devdbg(usbdev, "set_channel(%d)", channel);
1225
1226 /* this OID is valid only when not associated */
1227 if (is_associated(usbdev))
1228 return 0;
1229
1230 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1231
1232 len = sizeof(config);
1233 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1234 if (ret < 0) {
1235 devdbg(usbdev, "set_channel: querying configuration failed");
1236 return ret;
1237 }
1238
1239 config.ds_config = cpu_to_le32(dsconfig);
1240 ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1241 sizeof(config));
1242
1243 devdbg(usbdev, "set_channel: %d -> %d", channel, ret);
1244
1245 return ret;
1246}
1247
bf164cc0 1248/* index must be 0 - N, as per NDIS */
5c52323e
JK		 1249static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1250 int index)
bf164cc0 1251{
582241a0 1252 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1e41e1d2 1253 struct ndis_80211_wep_key ndis_key;
84bf8400
JK		 1254 u32 cipher;
1255 int ret;
1256
1257 devdbg(usbdev, "add_wep_key(idx: %d, len: %d)", index, key_len);
bf164cc0 1258
40ba60dd 1259 if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
bf164cc0
JK		 1260 return -EINVAL;
1261
b7cfc5b3
JK		 1262 if (key_len == 5)
1263 cipher = WLAN_CIPHER_SUITE_WEP40;
1264 else
1265 cipher = WLAN_CIPHER_SUITE_WEP104;
1266
bf164cc0
JK		 1267 memset(&ndis_key, 0, sizeof(ndis_key));
1268
461b3f2a
JK		 1269 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1270 ndis_key.length = cpu_to_le32(key_len);
1271 ndis_key.index = cpu_to_le32(index);
1272 memcpy(&ndis_key.material, key, key_len);
bf164cc0
JK		 1273
1274 if (index == priv->encr_tx_key_index) {
aa18294a 1275 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
5c52323e
JK		 1276 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1277 RNDIS_WLAN_ALG_NONE);
bf164cc0
JK		 1278 if (ret)
1279 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1280 ret);
1281 }
1282
1283 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1284 sizeof(ndis_key));
1285 if (ret != 0) {
1286 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1287 index+1, ret);
1288 return ret;
1289 }
1290
b7cfc5b3
JK		 1291 priv->encr_keys[index].len = key_len;
1292 priv->encr_keys[index].cipher = cipher;
1293 memcpy(&priv->encr_keys[index].material, key, key_len);
1294 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
bf164cc0
JK		 1295
1296 return 0;
1297}
1298
b145ee0c 1299static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
84bf8400 1300 int index, const u8 *addr, const u8 *rx_seq,
53d27eaf 1301 int seq_len, u32 cipher, __le32 flags)
b145ee0c 1302{
582241a0 1303 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
b145ee0c 1304 struct ndis_80211_key ndis_key;
b7cfc5b3 1305 bool is_addr_ok;
b145ee0c
JK		 1306 int ret;
1307
b7cfc5b3
JK		 1308 if (index < 0 || index >= 4) {
1309 devdbg(usbdev, "add_wpa_key: index out of range (%i)", index);
b145ee0c 1310 return -EINVAL;
b7cfc5b3
JK		 1311 }
1312 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1313 devdbg(usbdev, "add_wpa_key: key length out of range (%i)",
1314 key_len);
b145ee0c 1315 return -EINVAL;
b7cfc5b3 1316 }
84bf8400
JK		 1317 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1318 if (!rx_seq || seq_len <= 0) {
1319 devdbg(usbdev, "add_wpa_key: recv seq flag without"
1320 "buffer");
1321 return -EINVAL;
1322 }
1323 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1324 devdbg(usbdev, "add_wpa_key: too big recv seq buffer");
1325 return -EINVAL;
1326 }
b7cfc5b3 1327 }
84bf8400 1328
7b1fff99
JK		 1329 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1330 !is_broadcast_ether_addr(addr);
b7cfc5b3
JK		 1331 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1332 devdbg(usbdev, "add_wpa_key: pairwise but bssid invalid (%pM)",
1333 addr);
b145ee0c 1334 return -EINVAL;
b7cfc5b3 1335 }
b145ee0c
JK		 1336
1337 devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
aa18294a
JK		 1338 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1339 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1340 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
b145ee0c
JK		 1341
1342 memset(&ndis_key, 0, sizeof(ndis_key));
1343
1344 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1345 sizeof(ndis_key.material) + key_len);
1346 ndis_key.length = cpu_to_le32(key_len);
1347 ndis_key.index = cpu_to_le32(index) | flags;
1348
b7cfc5b3 1349 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
b145ee0c
JK		 1350 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1351 * different order than NDIS spec, so swap the order here. */
1352 memcpy(ndis_key.material, key, 16);
1353 memcpy(ndis_key.material + 16, key + 24, 8);
1354 memcpy(ndis_key.material + 24, key + 16, 8);
1355 } else
1356 memcpy(ndis_key.material, key, key_len);
1357
aa18294a 1358 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
84bf8400 1359 memcpy(ndis_key.rsc, rx_seq, seq_len);
b145ee0c 1360
aa18294a 1361 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
b145ee0c 1362 /* pairwise key */
b7cfc5b3 1363 memcpy(ndis_key.bssid, addr, ETH_ALEN);
b145ee0c
JK		 1364 } else {
1365 /* group key */
aa18294a 1366 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
b145ee0c
JK		 1367 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1368 else
1369 get_bssid(usbdev, ndis_key.bssid);
1370 }
1371
1372 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1373 le32_to_cpu(ndis_key.size));
1374 devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1375 if (ret != 0)
1376 return ret;
1377
b7cfc5b3
JK		 1378 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1379 priv->encr_keys[index].len = key_len;
1380 priv->encr_keys[index].cipher = cipher;
1381 memcpy(&priv->encr_keys[index].material, key, key_len);
1382 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1383 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1384 else
1385 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
9839178e 1386
aa18294a 1387 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
b145ee0c
JK		 1388 priv->encr_tx_key_index = index;
1389
1390 return 0;
1391}
1392
b7cfc5b3
JK		 1393static int restore_key(struct usbnet *usbdev, int key_idx)
1394{
1395 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1396 struct rndis_wlan_encr_key key;
84bf8400
JK		 1397
1398 if (is_wpa_key(priv, key_idx))
1399 return 0;
b7cfc5b3
JK		 1400
1401 key = priv->encr_keys[key_idx];
1402
84bf8400 1403 devdbg(usbdev, "restore_key: %i:%i", key_idx, key.len);
b7cfc5b3
JK		 1404
1405 if (key.len == 0)
1406 return 0;
1407
b7cfc5b3
JK		 1408 return add_wep_key(usbdev, key.material, key.len, key_idx);
1409}
1410
b7cfc5b3
JK		 1411static void restore_keys(struct usbnet *usbdev)
1412{
1413 int i;
1414
1415 for (i = 0; i < 4; i++)
1416 restore_key(usbdev, i);
1417}
1418
b7cfc5b3
JK		 1419static void clear_key(struct rndis_wlan_private *priv, int idx)
1420{
1421 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1422}
1423
bf164cc0 1424/* remove_key is for both wep and wpa */
84bf8400 1425static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
bf164cc0 1426{
582241a0 1427 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1e41e1d2 1428 struct ndis_80211_remove_key remove_key;
bf164cc0 1429 __le32 keyindex;
b7cfc5b3 1430 bool is_wpa;
bf164cc0
JK		 1431 int ret;
1432
b7cfc5b3 1433 if (priv->encr_keys[index].len == 0)
bf164cc0
JK		 1434 return 0;
1435
b7cfc5b3 1436 is_wpa = is_wpa_key(priv, index);
bf164cc0 1437
b7cfc5b3
JK		 1438 devdbg(usbdev, "remove_key: %i:%s:%i", index, is_wpa ? "wpa" : "wep",
1439 priv->encr_keys[index].len);
1440
1441 clear_key(priv, index);
1442
1443 if (is_wpa) {
461b3f2a
JK		 1444 remove_key.size = cpu_to_le32(sizeof(remove_key));
1445 remove_key.index = cpu_to_le32(index);
bf164cc0
JK		 1446 if (bssid) {
1447 /* pairwise key */
7b1fff99 1448 if (!is_broadcast_ether_addr(bssid))
b4703a2e 1449 remove_key.index |=
aa18294a 1450 NDIS_80211_ADDKEY_PAIRWISE_KEY;
461b3f2a
JK		 1451 memcpy(remove_key.bssid, bssid,
1452 sizeof(remove_key.bssid));
bf164cc0 1453 } else
461b3f2a
JK		 1454 memset(remove_key.bssid, 0xff,
1455 sizeof(remove_key.bssid));
bf164cc0
JK		 1456
1457 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1458 sizeof(remove_key));
1459 if (ret != 0)
1460 return ret;
1461 } else {
1462 keyindex = cpu_to_le32(index);
1463 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1464 sizeof(keyindex));
1465 if (ret != 0) {
1466 devwarn(usbdev,
1467 "removing encryption key %d failed (%08X)",
1468 index, ret);
1469 return ret;
1470 }
1471 }
1472
1473 /* if it is transmit key, disable encryption */
1474 if (index == priv->encr_tx_key_index)
5c52323e 1475 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
bf164cc0
JK		 1476
1477 return 0;
1478}
1479
bf164cc0
JK		 1480static void set_multicast_list(struct usbnet *usbdev)
1481{
582241a0 1482 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1483 struct dev_mc_list *mclist;
1484 __le32 filter;
1485 int ret, i, size;
1486 char *buf;
1487
1488 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1489
1490 if (usbdev->net->flags & IFF_PROMISC) {
1491 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1492 RNDIS_PACKET_TYPE_ALL_LOCAL;
1493 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1494 usbdev->net->mc_count > priv->multicast_size) {
1495 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1496 } else if (usbdev->net->mc_count > 0) {
1497 size = min(priv->multicast_size, usbdev->net->mc_count);
1498 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1499 if (!buf) {
1500 devwarn(usbdev,
1501 "couldn't alloc %d bytes of memory",
1502 size * ETH_ALEN);
1503 return;
1504 }
1505
1506 mclist = usbdev->net->mc_list;
1507 for (i = 0; i < size && mclist; mclist = mclist->next) {
1508 if (mclist->dmi_addrlen != ETH_ALEN)
1509 continue;
1510
1511 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1512 i++;
1513 }
1514
1515 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1516 i * ETH_ALEN);
1517 if (ret == 0 && i > 0)
1518 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1519 else
1520 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1521
1522 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1523 i, priv->multicast_size, ret);
1524
1525 kfree(buf);
1526 }
1527
1528 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1529 sizeof(filter));
1530 if (ret < 0) {
1531 devwarn(usbdev, "couldn't set packet filter: %08x",
1532 le32_to_cpu(filter));
1533 }
1534
1535 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1536 le32_to_cpu(filter), ret);
1537}
1538
964c1d41
JL		 1539/*
1540 * cfg80211 ops
1541 */
e36d56b6
JB		 1542static int rndis_change_virtual_intf(struct wiphy *wiphy,
1543 struct net_device *dev,
964c1d41
JL		 1544 enum nl80211_iftype type, u32 *flags,
1545 struct vif_params *params)
1546{
16139172
JK		 1547 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1548 struct usbnet *usbdev = priv->usbdev;
964c1d41
JL		 1549 int mode;
1550
964c1d41
JL		 1551 switch (type) {
1552 case NL80211_IFTYPE_ADHOC:
aa18294a 1553 mode = NDIS_80211_INFRA_ADHOC;
964c1d41
JL		 1554 break;
1555 case NL80211_IFTYPE_STATION:
aa18294a 1556 mode = NDIS_80211_INFRA_INFRA;
964c1d41
JL		 1557 break;
1558 default:
1559 return -EINVAL;
1560 }
1561
16139172
JK		 1562 priv->wdev.iftype = type;
1563
964c1d41
JL		 1564 return set_infra_mode(usbdev, mode);
1565}
1566
d75ec2b7
JK		 1567static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1568{
1569 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1570 struct usbnet *usbdev = priv->usbdev;
1571 int err;
1572
1573 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1574 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1575 if (err < 0)
1576 return err;
1577 }
1578
1579 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1580 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1581 if (err < 0)
1582 return err;
1583 }
1584
1585 return 0;
1586}
1587
222ec50a
JK		 1588static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
1589 int dbm)
1590{
1591 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1592 struct usbnet *usbdev = priv->usbdev;
1593
1594 devdbg(usbdev, "rndis_set_tx_power type:0x%x dbm:%i", type, dbm);
1595
1596 /* Device doesn't support changing txpower after initialization, only
1597 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1598 * currently used.
1599 */
1600 if (type == TX_POWER_AUTOMATIC || dbm == get_bcm4320_power_dbm(priv)) {
1601 if (!priv->radio_on)
051ae0bf 1602 disassociate(usbdev, true); /* turn on radio */
222ec50a
JK		 1603
1604 return 0;
1605 }
1606
1607 return -ENOTSUPP;
1608}
1609
222ec50a
JK		 1610static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1611{
1612 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1613 struct usbnet *usbdev = priv->usbdev;
1614
1615 *dbm = get_bcm4320_power_dbm(priv);
1616
1617 devdbg(usbdev, "rndis_get_tx_power dbm:%i", *dbm);
1618
1619 return 0;
1620}
1621
b1d25a67 1622#define SCAN_DELAY_JIFFIES (6 * HZ)
71a7b26d
JK		 1623static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1624 struct cfg80211_scan_request *request)
1625{
1626 struct usbnet *usbdev = netdev_priv(dev);
582241a0 1627 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
71a7b26d
JK		 1628 int ret;
1629 __le32 tmp;
1630
1631 devdbg(usbdev, "cfg80211.scan");
1632
db0dd396
JK		 1633 /* Get current bssid list from device before new scan, as new scan
1634 * clears internal bssid list.
1635 */
1636 rndis_check_bssid_list(usbdev);
1637
71a7b26d
JK		 1638 if (!request)
1639 return -EINVAL;
1640
1641 if (priv->scan_request && priv->scan_request != request)
1642 return -EBUSY;
1643
1644 priv->scan_request = request;
1645
1646 tmp = cpu_to_le32(1);
1647 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1648 sizeof(tmp));
1649 if (ret == 0) {
1650 /* Wait before retrieving scan results from device */
1651 queue_delayed_work(priv->workqueue, &priv->scan_work,
1652 SCAN_DELAY_JIFFIES);
1653 }
1654
1655 return ret;
1656}
1657
71a7b26d
JK		 1658static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1659 struct ndis_80211_bssid_ex *bssid)
1660{
582241a0 1661 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
71a7b26d
JK		 1662 struct ieee80211_channel *channel;
1663 s32 signal;
1664 u64 timestamp;
1665 u16 capability;
1666 u16 beacon_interval;
1667 struct ndis_80211_fixed_ies *fixed;
1668 int ie_len, bssid_len;
1669 u8 *ie;
1670
5fd8f250
JK		 1671 devdbg(usbdev, " found bssid: '%.32s' [%pM]", bssid->ssid.essid,
1672 bssid->mac);
1673
71a7b26d
JK		 1674 /* parse bssid structure */
1675 bssid_len = le32_to_cpu(bssid->length);
1676
1677 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1678 sizeof(struct ndis_80211_fixed_ies))
1679 return NULL;
1680
1681 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1682
1683 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1684 ie_len = min(bssid_len - (int)sizeof(*bssid),
1685 (int)le32_to_cpu(bssid->ie_length));
1686 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1687 if (ie_len < 0)
1688 return NULL;
1689
1690 /* extract data for cfg80211_inform_bss */
1691 channel = ieee80211_get_channel(priv->wdev.wiphy,
1692 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1693 if (!channel)
1694 return NULL;
1695
1696 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1697 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1698 capability = le16_to_cpu(fixed->capabilities);
1699 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1700
1701 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1702 timestamp, capability, beacon_interval, ie, ie_len, signal,
1703 GFP_KERNEL);
1704}
1705
71a7b26d
JK		 1706static int rndis_check_bssid_list(struct usbnet *usbdev)
1707{
1708 void *buf = NULL;
1709 struct ndis_80211_bssid_list_ex *bssid_list;
1710 struct ndis_80211_bssid_ex *bssid;
1711 int ret = -EINVAL, len, count, bssid_len;
5fd8f250 1712 bool resized = false;
71a7b26d
JK		 1713
1714 devdbg(usbdev, "check_bssid_list");
1715
1716 len = CONTROL_BUFFER_SIZE;
5fd8f250 1717resize_buf:
71a7b26d
JK		 1718 buf = kmalloc(len, GFP_KERNEL);
1719 if (!buf) {
1720 ret = -ENOMEM;
1721 goto out;
1722 }
1723
1724 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1725 if (ret != 0)
1726 goto out;
1727
5fd8f250
JK		 1728 if (!resized && len > CONTROL_BUFFER_SIZE) {
1729 resized = true;
1730 kfree(buf);
1731 goto resize_buf;
1732 }
1733
71a7b26d
JK		 1734 bssid_list = buf;
1735 bssid = bssid_list->bssid;
1736 bssid_len = le32_to_cpu(bssid->length);
1737 count = le32_to_cpu(bssid_list->num_items);
5fd8f250
JK		 1738 devdbg(usbdev, "check_bssid_list: %d BSSIDs found (buflen: %d)", count,
1739 len);
71a7b26d
JK		 1740
1741 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1742 rndis_bss_info_update(usbdev, bssid);
1743
1744 bssid = (void *)bssid + bssid_len;
1745 bssid_len = le32_to_cpu(bssid->length);
1746 count--;
1747 }
1748
1749out:
1750 kfree(buf);
1751 return ret;
1752}
1753
71a7b26d
JK		 1754static void rndis_get_scan_results(struct work_struct *work)
1755{
582241a0
JK		 1756 struct rndis_wlan_private *priv =
1757 container_of(work, struct rndis_wlan_private, scan_work.work);
71a7b26d
JK		 1758 struct usbnet *usbdev = priv->usbdev;
1759 int ret;
1760
1761 devdbg(usbdev, "get_scan_results");
1762
005ba2f1
JK		 1763 if (!priv->scan_request)
1764 return;
1765
71a7b26d
JK		 1766 ret = rndis_check_bssid_list(usbdev);
1767
1768 cfg80211_scan_done(priv->scan_request, ret < 0);
1769
1770 priv->scan_request = NULL;
1771}
1772
5c52323e
JK		 1773static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
1774 struct cfg80211_connect_params *sme)
1775{
1776 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1777 struct usbnet *usbdev = priv->usbdev;
1778 struct ieee80211_channel *channel = sme->channel;
1779 struct ndis_80211_ssid ssid;
1780 int pairwise = RNDIS_WLAN_ALG_NONE;
1781 int groupwise = RNDIS_WLAN_ALG_NONE;
1782 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
1783 int length, i, ret, chan = -1;
1784
1785 if (channel)
1786 chan = ieee80211_frequency_to_channel(channel->center_freq);
1787
1788 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
1789 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
1790 pairwise |=
1791 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
1792
1793 if (sme->crypto.n_ciphers_pairwise > 0 &&
1794 pairwise == RNDIS_WLAN_ALG_NONE) {
1795 deverr(usbdev, "Unsupported pairwise cipher");
1796 return -ENOTSUPP;
1797 }
1798
1799 for (i = 0; i < sme->crypto.n_akm_suites; i++)
1800 keymgmt |=
1801 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
1802
1803 if (sme->crypto.n_akm_suites > 0 &&
1804 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
1805 deverr(usbdev, "Invalid keymgmt");
1806 return -ENOTSUPP;
1807 }
1808
1809 devdbg(usbdev, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:"
1810 "0x%x]:0x%x)", sme->ssid, sme->bssid, chan,
1811 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
1812 groupwise, pairwise, keymgmt);
1813
1814 if (is_associated(usbdev))
1815 disassociate(usbdev, false);
1816
1817 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1818 if (ret < 0) {
1819 devdbg(usbdev, "connect: set_infra_mode failed, %d", ret);
1820 goto err_turn_radio_on;
1821 }
1822
1823 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
1824 keymgmt);
1825 if (ret < 0) {
1826 devdbg(usbdev, "connect: set_auth_mode failed, %d", ret);
1827 goto err_turn_radio_on;
1828 }
1829
1830 set_priv_filter(usbdev);
1831
1832 ret = set_encr_mode(usbdev, pairwise, groupwise);
1833 if (ret < 0) {
1834 devdbg(usbdev, "connect: set_encr_mode failed, %d", ret);
1835 goto err_turn_radio_on;
1836 }
1837
1838 if (channel) {
1839 ret = set_channel(usbdev, chan);
1840 if (ret < 0) {
1841 devdbg(usbdev, "connect: set_channel failed, %d", ret);
1842 goto err_turn_radio_on;
1843 }
1844 }
1845
1846 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
1847 priv->encr_tx_key_index = sme->key_idx;
1848 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
1849 if (ret < 0) {
1850 devdbg(usbdev, "connect: add_wep_key failed, %d "
1851 "(%d, %d)", ret, sme->key_len, sme->key_idx);
1852 goto err_turn_radio_on;
1853 }
1854 }
1855
1856 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
1857 !is_broadcast_ether_addr(sme->bssid)) {
1858 ret = set_bssid(usbdev, sme->bssid);
1859 if (ret < 0) {
1860 devdbg(usbdev, "connect: set_bssid failed, %d", ret);
1861 goto err_turn_radio_on;
1862 }
1863 } else
1864 clear_bssid(usbdev);
1865
1866 length = sme->ssid_len;
1867 if (length > NDIS_802_11_LENGTH_SSID)
1868 length = NDIS_802_11_LENGTH_SSID;
1869
1870 memset(&ssid, 0, sizeof(ssid));
1871 ssid.length = cpu_to_le32(length);
1872 memcpy(ssid.essid, sme->ssid, length);
1873
1874 /* Pause and purge rx queue, so we don't pass packets before
1875 * 'media connect'-indication.
1876 */
1877 usbnet_pause_rx(usbdev);
1878 usbnet_purge_paused_rxq(usbdev);
1879
1880 ret = set_essid(usbdev, &ssid);
1881 if (ret < 0)
1882 devdbg(usbdev, "connect: set_essid failed, %d", ret);
1883 return ret;
1884
1885err_turn_radio_on:
051ae0bf 1886 disassociate(usbdev, true);
5c52323e
JK		 1887
1888 return ret;
1889}
1890
1891static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
1892 u16 reason_code)
1893{
1894 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1895 struct usbnet *usbdev = priv->usbdev;
1896
1897 devdbg(usbdev, "cfg80211.disconnect(%d)", reason_code);
1898
1899 priv->connected = false;
8b89a288 1900 memset(priv->bssid, 0, ETH_ALEN);
5c52323e
JK		 1901
1902 return deauthenticate(usbdev);
1903}
1904
1905static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1906 struct cfg80211_ibss_params *params)
1907{
1908 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1909 struct usbnet *usbdev = priv->usbdev;
1910 struct ieee80211_channel *channel = params->channel;
1911 struct ndis_80211_ssid ssid;
1912 enum nl80211_auth_type auth_type;
1913 int ret, alg, length, chan = -1;
1914
1915 if (channel)
1916 chan = ieee80211_frequency_to_channel(channel->center_freq);
1917
1918 /* TODO: How to handle ad-hoc encryption?
1919 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
1920 * pre-shared for encryption (open/shared/wpa), is key set before
1921 * join_ibss? Which auth_type to use (not in params)? What about WPA?
1922 */
1923 if (params->privacy) {
1924 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
1925 alg = RNDIS_WLAN_ALG_WEP;
1926 } else {
1927 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1928 alg = RNDIS_WLAN_ALG_NONE;
1929 }
1930
1931 devdbg(usbdev, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)", params->ssid,
1932 params->bssid, chan, params->privacy);
1933
1934 if (is_associated(usbdev))
1935 disassociate(usbdev, false);
1936
1937 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
1938 if (ret < 0) {
1939 devdbg(usbdev, "join_ibss: set_infra_mode failed, %d", ret);
1940 goto err_turn_radio_on;
1941 }
1942
1943 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
1944 if (ret < 0) {
1945 devdbg(usbdev, "join_ibss: set_auth_mode failed, %d", ret);
1946 goto err_turn_radio_on;
1947 }
1948
1949 set_priv_filter(usbdev);
1950
1951 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
1952 if (ret < 0) {
1953 devdbg(usbdev, "join_ibss: set_encr_mode failed, %d", ret);
1954 goto err_turn_radio_on;
1955 }
1956
1957 if (channel) {
1958 ret = set_channel(usbdev, chan);
1959 if (ret < 0) {
1960 devdbg(usbdev, "join_ibss: set_channel failed, %d",
1961 ret);
1962 goto err_turn_radio_on;
1963 }
1964 }
1965
1966 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
1967 !is_broadcast_ether_addr(params->bssid)) {
1968 ret = set_bssid(usbdev, params->bssid);
1969 if (ret < 0) {
1970 devdbg(usbdev, "join_ibss: set_bssid failed, %d", ret);
1971 goto err_turn_radio_on;
1972 }
1973 } else
1974 clear_bssid(usbdev);
1975
1976 length = params->ssid_len;
1977 if (length > NDIS_802_11_LENGTH_SSID)
1978 length = NDIS_802_11_LENGTH_SSID;
1979
1980 memset(&ssid, 0, sizeof(ssid));
1981 ssid.length = cpu_to_le32(length);
1982 memcpy(ssid.essid, params->ssid, length);
1983
1984 /* Don't need to pause rx queue for ad-hoc. */
1985 usbnet_purge_paused_rxq(usbdev);
1986 usbnet_resume_rx(usbdev);
1987
1988 ret = set_essid(usbdev, &ssid);
1989 if (ret < 0)
1990 devdbg(usbdev, "join_ibss: set_essid failed, %d", ret);
1991 return ret;
1992
1993err_turn_radio_on:
051ae0bf 1994 disassociate(usbdev, true);
5c52323e
JK		 1995
1996 return ret;
1997}
1998
1999static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2000{
2001 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2002 struct usbnet *usbdev = priv->usbdev;
2003
2004 devdbg(usbdev, "cfg80211.leave_ibss()");
2005
2006 priv->connected = false;
8b89a288 2007 memset(priv->bssid, 0, ETH_ALEN);
5c52323e
JK		 2008
2009 return deauthenticate(usbdev);
2010}
2011
5554adbe
JK		 2012static int rndis_set_channel(struct wiphy *wiphy,
2013 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2014{
2015 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2016 struct usbnet *usbdev = priv->usbdev;
2017
2018 return set_channel(usbdev,
2019 ieee80211_frequency_to_channel(chan->center_freq));
2020}
71a7b26d 2021
84bf8400
JK		 2022static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2023 u8 key_index, const u8 *mac_addr,
2024 struct key_params *params)
2025{
2026 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2027 struct usbnet *usbdev = priv->usbdev;
53d27eaf 2028 __le32 flags;
84bf8400
JK		 2029
2030 devdbg(usbdev, "rndis_add_key(%i, %pM, %08x)", key_index, mac_addr,
2031 params->cipher);
2032
2033 switch (params->cipher) {
2034 case WLAN_CIPHER_SUITE_WEP40:
2035 case WLAN_CIPHER_SUITE_WEP104:
2036 return add_wep_key(usbdev, params->key, params->key_len,
2037 key_index);
2038 case WLAN_CIPHER_SUITE_TKIP:
2039 case WLAN_CIPHER_SUITE_CCMP:
2040 flags = 0;
2041
2042 if (params->seq && params->seq_len > 0)
2043 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2044 if (mac_addr)
2045 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2046 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2047
2048 return add_wpa_key(usbdev, params->key, params->key_len,
2049 key_index, mac_addr, params->seq,
2050 params->seq_len, params->cipher, flags);
2051 default:
2052 devdbg(usbdev, "rndis_add_key: unsupported cipher %08x",
2053 params->cipher);
2054 return -ENOTSUPP;
2055 }
2056}
2057
2058static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2059 u8 key_index, const u8 *mac_addr)
2060{
2061 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2062 struct usbnet *usbdev = priv->usbdev;
2063
2064 devdbg(usbdev, "rndis_del_key(%i, %pM)", key_index, mac_addr);
2065
2066 return remove_key(usbdev, key_index, mac_addr);
2067}
2068
2069static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2070 u8 key_index)
2071{
2072 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2073 struct usbnet *usbdev = priv->usbdev;
2074 struct rndis_wlan_encr_key key;
2075
2076 devdbg(usbdev, "rndis_set_default_key(%i)", key_index);
2077
2078 priv->encr_tx_key_index = key_index;
2079
2080 key = priv->encr_keys[key_index];
2081
2082 return add_wep_key(usbdev, key.material, key.len, key_index);
2083}
2084
8b89a288
JK		 2085static void rndis_fill_station_info(struct usbnet *usbdev,
2086 struct station_info *sinfo)
2087{
2088 __le32 linkspeed, rssi;
2089 int ret, len;
2090
2091 memset(sinfo, 0, sizeof(*sinfo));
2092
2093 len = sizeof(linkspeed);
2094 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2095 if (ret == 0) {
2096 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2097 sinfo->filled |= STATION_INFO_TX_BITRATE;
2098 }
2099
2100 len = sizeof(rssi);
2101 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2102 if (ret == 0) {
2103 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2104 sinfo->filled |= STATION_INFO_SIGNAL;
2105 }
2106}
2107
2108static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2109 u8 *mac, struct station_info *sinfo)
2110{
2111 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2112 struct usbnet *usbdev = priv->usbdev;
2113
2114 if (compare_ether_addr(priv->bssid, mac))
2115 return -ENOENT;
2116
2117 rndis_fill_station_info(usbdev, sinfo);
2118
2119 return 0;
2120}
2121
d695df90
JK		 2122static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2123 int idx, u8 *mac, struct station_info *sinfo)
2124{
2125 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2126 struct usbnet *usbdev = priv->usbdev;
2127
2128 if (idx != 0)
2129 return -ENOENT;
2130
2131 memcpy(mac, priv->bssid, ETH_ALEN);
2132
2133 rndis_fill_station_info(usbdev, sinfo);
2134
2135 return 0;
2136}
2137
c5c4fe90
JK		 2138/*
2139 * workers, indication handlers, device poller
2140 */
0848e6c6 2141static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
bf164cc0 2142{
5c52323e 2143 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
4364623c 2144 struct ndis_80211_assoc_info *info;
0848e6c6
JK		 2145 u8 assoc_buf[sizeof(*info) + IW_CUSTOM_MAX + 32];
2146 u8 bssid[ETH_ALEN];
5c52323e
JK		 2147 int resp_ie_len, req_ie_len;
2148 u8 *req_ie, *resp_ie;
4364623c 2149 int ret, offset;
5c52323e 2150 bool roamed = false;
bf164cc0 2151
5c52323e
JK		 2152 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2153 /* received media connect indication while connected, either
2154 * device reassociated with same AP or roamed to new. */
2155 roamed = true;
2156 }
0848e6c6 2157
5c52323e
JK		 2158 req_ie_len = 0;
2159 resp_ie_len = 0;
2160 req_ie = NULL;
2161 resp_ie = NULL;
2162
2163 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2164 memset(assoc_buf, 0, sizeof(assoc_buf));
2165 info = (void *)assoc_buf;
2166
2167 /* Get association info IEs from device and send them back to
2168 * userspace. */
2169 ret = get_association_info(usbdev, info, sizeof(assoc_buf));
2170 if (!ret) {
2171 req_ie_len = le32_to_cpu(info->req_ie_length);
2172 if (req_ie_len > 0) {
2173 offset = le32_to_cpu(info->offset_req_ies);
2174 req_ie = (u8 *)info + offset;
2175 }
2176
2177 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2178 if (resp_ie_len > 0) {
2179 offset = le32_to_cpu(info->offset_resp_ies);
2180 resp_ie = (u8 *)info + offset;
2181 }
4364623c 2182 }
5c52323e
JK		 2183 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2184 return;
4364623c 2185
5c52323e
JK		 2186 ret = get_bssid(usbdev, bssid);
2187 if (ret < 0)
2188 memset(bssid, 0, sizeof(bssid));
7834ddbc 2189
5c52323e 2190 devdbg(usbdev, "link up work: [%pM] %s", bssid, roamed ? "roamed" : "");
bf164cc0 2191
5c52323e
JK		 2192 /* Internal bss list in device always contains at least the currently
2193 * connected bss and we can get it to cfg80211 with
2194 * rndis_check_bssid_list().
2195 * NOTE: This is true for Broadcom chip, but not mentioned in RNDIS
2196 * spec.
2197 */
2198 rndis_check_bssid_list(usbdev);
2199
2200 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2201 if (!roamed)
2202 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2203 req_ie_len, resp_ie,
2204 resp_ie_len, 0, GFP_KERNEL);
2205 else
2206 cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len,
2207 resp_ie, resp_ie_len, GFP_KERNEL);
2208 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2209 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2210
2211 priv->connected = true;
8b89a288 2212 memcpy(priv->bssid, bssid, ETH_ALEN);
6010ce07 2213
0848e6c6 2214 usbnet_resume_rx(usbdev);
5c52323e 2215 netif_carrier_on(usbdev->net);
0848e6c6
JK		 2216}
2217
2218static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2219{
2220 union iwreq_data evt;
2221
2222 netif_carrier_off(usbdev->net);
2223
2224 evt.data.flags = 0;
2225 evt.data.length = 0;
2226 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2227 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2228}
2229
2230static void rndis_wlan_worker(struct work_struct *work)
2231{
2232 struct rndis_wlan_private *priv =
2233 container_of(work, struct rndis_wlan_private, work);
2234 struct usbnet *usbdev = priv->usbdev;
2235
2236 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2237 rndis_wlan_do_link_up_work(usbdev);
2238
2239 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2240 rndis_wlan_do_link_down_work(usbdev);
2241
bf164cc0
JK		 2242 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2243 set_multicast_list(usbdev);
2244}
2245
582241a0 2246static void rndis_wlan_set_multicast_list(struct net_device *dev)
bf164cc0 2247{
524ad0a7 2248 struct usbnet *usbdev = netdev_priv(dev);
582241a0 2249 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 2250
a67edb9e
JK		 2251 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2252 return;
2253
bf164cc0
JK		 2254 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2255 queue_work(priv->workqueue, &priv->work);
2256}
2257
030645ac
JK		 2258static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2259 struct ndis_80211_status_indication *indication,
2260 int len)
2261{
2262 u8 *buf;
2263 const char *type;
a0f9ce2a 2264 int flags, buflen, key_id;
030645ac
JK		 2265 bool pairwise_error, group_error;
2266 struct ndis_80211_auth_request *auth_req;
a0f9ce2a 2267 enum nl80211_key_type key_type;
030645ac
JK		 2268
2269 /* must have at least one array entry */
2270 if (len < offsetof(struct ndis_80211_status_indication, u) +
2271 sizeof(struct ndis_80211_auth_request)) {
2272 devinfo(usbdev, "authentication indication: "
2273 "too short message (%i)", len);
2274 return;
2275 }
2276
2277 buf = (void *)&indication->u.auth_request[0];
2278 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2279
2280 while (buflen >= sizeof(*auth_req)) {
2281 auth_req = (void *)buf;
2282 type = "unknown";
2283 flags = le32_to_cpu(auth_req->flags);
2284 pairwise_error = false;
2285 group_error = false;
2286
2287 if (flags & 0x1)
2288 type = "reauth request";
2289 if (flags & 0x2)
2290 type = "key update request";
2291 if (flags & 0x6) {
2292 pairwise_error = true;
2293 type = "pairwise_error";
2294 }
2295 if (flags & 0xe) {
2296 group_error = true;
2297 type = "group_error";
2298 }
2299
2300 devinfo(usbdev, "authentication indication: %s (0x%08x)", type,
2301 le32_to_cpu(auth_req->flags));
2302
a0f9ce2a
JK		 2303 if (pairwise_error) {
2304 key_type = NL80211_KEYTYPE_PAIRWISE;
2305 key_id = -1;
030645ac 2306
a0f9ce2a
JK		 2307 cfg80211_michael_mic_failure(usbdev->net,
2308 auth_req->bssid,
2309 key_type, key_id, NULL,
2310 GFP_KERNEL);
2311 }
030645ac 2312
a0f9ce2a
JK		 2313 if (group_error) {
2314 key_type = NL80211_KEYTYPE_GROUP;
2315 key_id = -1;
030645ac 2316
a0f9ce2a
JK		 2317 cfg80211_michael_mic_failure(usbdev->net,
2318 auth_req->bssid,
2319 key_type, key_id, NULL,
2320 GFP_KERNEL);
030645ac
JK		 2321 }
2322
2323 buflen -= le32_to_cpu(auth_req->length);
2324 buf += le32_to_cpu(auth_req->length);
2325 }
2326}
2327
2328static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2329 struct ndis_80211_status_indication *indication,
2330 int len)
2331{
2332 struct ndis_80211_pmkid_cand_list *cand_list;
2333 int list_len, expected_len, i;
2334
2335 if (len < offsetof(struct ndis_80211_status_indication, u) +
2336 sizeof(struct ndis_80211_pmkid_cand_list)) {
2337 devinfo(usbdev, "pmkid candidate list indication: "
2338 "too short message (%i)", len);
2339 return;
2340 }
2341
2342 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2343 sizeof(struct ndis_80211_pmkid_candidate);
2344 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2345 offsetof(struct ndis_80211_status_indication, u);
2346
2347 if (len < expected_len) {
2348 devinfo(usbdev, "pmkid candidate list indication: "
2349 "list larger than buffer (%i < %i)",
2350 len, expected_len);
2351 return;
2352 }
2353
2354 cand_list = &indication->u.cand_list;
2355
2356 devinfo(usbdev, "pmkid candidate list indication: "
2357 "version %i, candidates %i",
2358 le32_to_cpu(cand_list->version),
2359 le32_to_cpu(cand_list->num_candidates));
2360
2361 if (le32_to_cpu(cand_list->version) != 1)
2362 return;
2363
2364 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
030645ac
JK		 2365 struct ndis_80211_pmkid_candidate *cand =
2366 &cand_list->candidate_list[i];
2367
2368 devdbg(usbdev, "cand[%i]: flags: 0x%08x, bssid: %pM",
2369 i, le32_to_cpu(cand->flags), cand->bssid);
2370
21ec2d8d
JK		 2371#if 0
2372 struct iw_pmkid_cand pcand;
2373 union iwreq_data wrqu;
2374
030645ac
JK		 2375 memset(&pcand, 0, sizeof(pcand));
2376 if (le32_to_cpu(cand->flags) & 0x01)
2377 pcand.flags |= IW_PMKID_CAND_PREAUTH;
2378 pcand.index = i;
2379 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2380
2381 memset(&wrqu, 0, sizeof(wrqu));
2382 wrqu.data.length = sizeof(pcand);
2383 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2384 (u8 *)&pcand);
21ec2d8d 2385#endif
030645ac
JK		 2386 }
2387}
2388
2389static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2390 struct rndis_indicate *msg, int buflen)
2391{
2392 struct ndis_80211_status_indication *indication;
2393 int len, offset;
2394
2395 offset = offsetof(struct rndis_indicate, status) +
2396 le32_to_cpu(msg->offset);
2397 len = le32_to_cpu(msg->length);
2398
2399 if (len < 8) {
2400 devinfo(usbdev, "media specific indication, "
2401 "ignore too short message (%i < 8)", len);
2402 return;
2403 }
2404
2405 if (offset + len > buflen) {
2406 devinfo(usbdev, "media specific indication, "
2407 "too large to fit to buffer (%i > %i)",
2408 offset + len, buflen);
2409 return;
2410 }
2411
2412 indication = (void *)((u8 *)msg + offset);
2413
2414 switch (le32_to_cpu(indication->status_type)) {
2415 case NDIS_80211_STATUSTYPE_RADIOSTATE:
2416 devinfo(usbdev, "radio state indication: %i",
2417 le32_to_cpu(indication->u.radio_status));
2418 return;
2419
2420 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
2421 devinfo(usbdev, "media stream mode indication: %i",
2422 le32_to_cpu(indication->u.media_stream_mode));
2423 return;
2424
2425 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2426 rndis_wlan_auth_indication(usbdev, indication, len);
2427 return;
2428
2429 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2430 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2431 return;
2432
2433 default:
2434 devinfo(usbdev, "media specific indication: "
2435 "unknown status type 0x%08x",
2436 le32_to_cpu(indication->status_type));
2437 }
2438}
2439
2a4901bc 2440static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
bf164cc0 2441{
582241a0 2442 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2a4901bc 2443 struct rndis_indicate *msg = ind;
bf164cc0 2444
2a4901bc
JK		 2445 switch (msg->status) {
2446 case RNDIS_STATUS_MEDIA_CONNECT:
5f81ff5a
JK		 2447 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2448 /* OID_802_11_ADD_KEY causes sometimes extra
2449 * "media connect" indications which confuses driver
2450 * and userspace to think that device is
2451 * roaming/reassociating when it isn't.
2452 */
2453 devdbg(usbdev, "ignored OID_802_11_ADD_KEY triggered "
2454 "'media connect'");
2455 return;
2456 }
2457
7834ddbc
JK		 2458 usbnet_pause_rx(usbdev);
2459
2a4901bc
JK		 2460 devinfo(usbdev, "media connect");
2461
030645ac 2462 /* queue work to avoid recursive calls into rndis_command */
2a4901bc
JK		 2463 set_bit(WORK_LINK_UP, &priv->work_pending);
2464 queue_work(priv->workqueue, &priv->work);
2465 break;
2466
2467 case RNDIS_STATUS_MEDIA_DISCONNECT:
2468 devinfo(usbdev, "media disconnect");
2469
030645ac 2470 /* queue work to avoid recursive calls into rndis_command */
2a4901bc
JK		 2471 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2472 queue_work(priv->workqueue, &priv->work);
2473 break;
2474
030645ac
JK		 2475 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2476 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2477 break;
2478
2a4901bc
JK		 2479 default:
2480 devinfo(usbdev, "indication: 0x%08x",
2481 le32_to_cpu(msg->status));
2482 break;
2483 }
bf164cc0
JK		 2484}
2485
582241a0 2486static int rndis_wlan_get_caps(struct usbnet *usbdev)
bf164cc0
JK		 2487{
2488 struct {
2489 __le32 num_items;
2490 __le32 items[8];
2491 } networks_supported;
2492 int len, retval, i, n;
582241a0 2493 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 2494
bf164cc0
JK		 2495 /* determine supported modes */
2496 len = sizeof(networks_supported);
a19d7292 2497 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
bf164cc0
JK		 2498 &networks_supported, &len);
2499 if (retval >= 0) {
2500 n = le32_to_cpu(networks_supported.num_items);
2501 if (n > 8)
2502 n = 8;
2503 for (i = 0; i < n; i++) {
2504 switch (le32_to_cpu(networks_supported.items[i])) {
aa18294a
JK		 2505 case NDIS_80211_TYPE_FREQ_HOP:
2506 case NDIS_80211_TYPE_DIRECT_SEQ:
bf164cc0
JK		 2507 priv->caps |= CAP_MODE_80211B;
2508 break;
aa18294a 2509 case NDIS_80211_TYPE_OFDM_A:
bf164cc0
JK		 2510 priv->caps |= CAP_MODE_80211A;
2511 break;
aa18294a 2512 case NDIS_80211_TYPE_OFDM_G:
bf164cc0
JK		 2513 priv->caps |= CAP_MODE_80211G;
2514 break;
2515 }
2516 }
bf164cc0
JK		 2517 }
2518
2519 return retval;
2520}
2521
305e243e
JK		 2522#define DEVICE_POLLER_JIFFIES (HZ)
2523static void rndis_device_poller(struct work_struct *work)
bf164cc0 2524{
582241a0 2525 struct rndis_wlan_private *priv =
305e243e
JK		 2526 container_of(work, struct rndis_wlan_private,
2527 dev_poller_work.work);
bf164cc0 2528 struct usbnet *usbdev = priv->usbdev;
bf164cc0 2529 __le32 rssi, tmp;
a97b1f3d 2530 int len, ret, j;
305e243e 2531 int update_jiffies = DEVICE_POLLER_JIFFIES;
bf164cc0
JK		 2532 void *buf;
2533
8b89a288
JK		 2534 /* Only check/do workaround when connected. Calling is_associated()
2535 * also polls device with rndis_command() and catches for media link
2536 * indications.
2537 */
2538 if (!is_associated(usbdev))
bf164cc0 2539 goto end;
bf164cc0
JK		 2540
2541 len = sizeof(rssi);
2542 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
8b89a288
JK		 2543 if (ret == 0)
2544 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
bf164cc0 2545
305e243e
JK		 2546 devdbg(usbdev, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d",
2547 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
bf164cc0 2548
a97b1f3d
JK		 2549 /* Workaround transfer stalls on poor quality links.
2550 * TODO: find right way to fix these stalls (as stalls do not happen
2551 * with ndiswrapper/windows driver). */
8b89a288 2552 if (priv->last_qual <= 25) {
bf164cc0
JK		 2553 /* Decrease stats worker interval to catch stalls.
2554 * faster. Faster than 400-500ms causes packet loss,
2555 * Slower doesn't catch stalls fast enough.
2556 */
2557 j = msecs_to_jiffies(priv->param_workaround_interval);
305e243e
JK		 2558 if (j > DEVICE_POLLER_JIFFIES)
2559 j = DEVICE_POLLER_JIFFIES;
bf164cc0
JK		 2560 else if (j <= 0)
2561 j = 1;
2562 update_jiffies = j;
2563
2564 /* Send scan OID. Use of both OIDs is required to get device
2565 * working.
2566 */
35c26c2c 2567 tmp = cpu_to_le32(1);
bf164cc0
JK		 2568 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2569 sizeof(tmp));
2570
2571 len = CONTROL_BUFFER_SIZE;
2572 buf = kmalloc(len, GFP_KERNEL);
2573 if (!buf)
2574 goto end;
2575
2576 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2577 kfree(buf);
2578 }
bf164cc0 2579
305e243e 2580end:
bf164cc0
JK		 2581 if (update_jiffies >= HZ)
2582 update_jiffies = round_jiffies_relative(update_jiffies);
2583 else {
2584 j = round_jiffies_relative(update_jiffies);
2585 if (abs(j - update_jiffies) <= 10)
2586 update_jiffies = j;
2587 }
2588
305e243e
JK		 2589 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
2590 update_jiffies);
bf164cc0
JK		 2591}
2592
c5c4fe90
JK		 2593/*
2594 * driver/device initialization
2595 */
59620e9f
JK		 2596static int bcm4320a_early_init(struct usbnet *usbdev)
2597{
2598 /* bcm4320a doesn't handle configuration parameters well. Try
2599 * set any and you get partially zeroed mac and broken device.
2600 */
2601
2602 return 0;
2603}
2604
59620e9f 2605static int bcm4320b_early_init(struct usbnet *usbdev)
bf164cc0 2606{
582241a0 2607 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 2608 char buf[8];
2609
2610 /* Early initialization settings, setting these won't have effect
2611 * if called after generic_rndis_bind().
2612 */
2613
2614 priv->param_country[0] = modparam_country[0];
2615 priv->param_country[1] = modparam_country[1];
2616 priv->param_country[2] = 0;
2617 priv->param_frameburst = modparam_frameburst;
2618 priv->param_afterburner = modparam_afterburner;
2619 priv->param_power_save = modparam_power_save;
2620 priv->param_power_output = modparam_power_output;
2621 priv->param_roamtrigger = modparam_roamtrigger;
2622 priv->param_roamdelta = modparam_roamdelta;
bf164cc0
JK		 2623
2624 priv->param_country[0] = toupper(priv->param_country[0]);
2625 priv->param_country[1] = toupper(priv->param_country[1]);
2626 /* doesn't support EU as country code, use FI instead */
2627 if (!strcmp(priv->param_country, "EU"))
2628 strcpy(priv->param_country, "FI");
2629
2630 if (priv->param_power_save < 0)
2631 priv->param_power_save = 0;
2632 else if (priv->param_power_save > 2)
2633 priv->param_power_save = 2;
2634
a7624837
JK		 2635 if (priv->param_power_output < 0)
2636 priv->param_power_output = 0;
2637 else if (priv->param_power_output > 3)
2638 priv->param_power_output = 3;
2639
bf164cc0
JK		 2640 if (priv->param_roamtrigger < -80)
2641 priv->param_roamtrigger = -80;
2642 else if (priv->param_roamtrigger > -60)
2643 priv->param_roamtrigger = -60;
2644
2645 if (priv->param_roamdelta < 0)
2646 priv->param_roamdelta = 0;
2647 else if (priv->param_roamdelta > 2)
2648 priv->param_roamdelta = 2;
2649
4d381ffb 2650 if (modparam_workaround_interval < 0)
bf164cc0 2651 priv->param_workaround_interval = 500;
4d381ffb
RK		 2652 else
2653 priv->param_workaround_interval = modparam_workaround_interval;
bf164cc0 2654
a19d7292
JK		 2655 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2656 rndis_set_config_parameter_str(usbdev, "FrameBursting",
bf164cc0 2657 priv->param_frameburst ? "1" : "0");
a19d7292 2658 rndis_set_config_parameter_str(usbdev, "Afterburner",
bf164cc0
JK		 2659 priv->param_afterburner ? "1" : "0");
2660 sprintf(buf, "%d", priv->param_power_save);
a19d7292 2661 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
bf164cc0 2662 sprintf(buf, "%d", priv->param_power_output);
a19d7292 2663 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
bf164cc0 2664 sprintf(buf, "%d", priv->param_roamtrigger);
a19d7292 2665 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
bf164cc0 2666 sprintf(buf, "%d", priv->param_roamdelta);
a19d7292 2667 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
bf164cc0
JK		 2668
2669 return 0;
2670}
2671
23d12e2b 2672/* same as rndis_netdev_ops but with local multicast handler */
582241a0 2673static const struct net_device_ops rndis_wlan_netdev_ops = {
23d12e2b
DM		 2674 .ndo_open = usbnet_open,
2675 .ndo_stop = usbnet_stop,
2676 .ndo_start_xmit = usbnet_start_xmit,
2677 .ndo_tx_timeout = usbnet_tx_timeout,
2678 .ndo_set_mac_address = eth_mac_addr,
2679 .ndo_validate_addr = eth_validate_addr,
582241a0 2680 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
23d12e2b
DM		 2681};
2682
582241a0 2683static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
bf164cc0 2684{
5c8fa4f7 2685 struct wiphy *wiphy;
582241a0 2686 struct rndis_wlan_private *priv;
bf164cc0
JK		 2687 int retval, len;
2688 __le32 tmp;
2689
5c8fa4f7
JL		 2690 /* allocate wiphy and rndis private data
2691 * NOTE: We only support a single virtual interface, so wiphy
2692 * and wireless_dev are somewhat synonymous for this device.
2693 */
582241a0 2694 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
5c8fa4f7 2695 if (!wiphy)
bf164cc0
JK		 2696 return -ENOMEM;
2697
5c8fa4f7
JL		 2698 priv = wiphy_priv(wiphy);
2699 usbdev->net->ieee80211_ptr = &priv->wdev;
2700 priv->wdev.wiphy = wiphy;
2701 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2702
bf164cc0 2703 /* These have to be initialized before calling generic_rndis_bind().
582241a0 2704 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
bf164cc0 2705 */
a19d7292 2706 usbdev->driver_priv = priv;
a19d7292 2707 priv->usbdev = usbdev;
bf164cc0
JK		 2708
2709 mutex_init(&priv->command_lock);
bf164cc0 2710
8d4d99ae
JK		 2711 /* because rndis_command() sleeps we need to use workqueue */
2712 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
582241a0 2713 INIT_WORK(&priv->work, rndis_wlan_worker);
305e243e 2714 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
8d4d99ae
JK		 2715 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2716
bf164cc0 2717 /* try bind rndis_host */
a19d7292 2718 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
bf164cc0
JK		 2719 if (retval < 0)
2720 goto fail;
2721
2722 /* generic_rndis_bind set packet filter to multicast_all+
2723 * promisc mode which doesn't work well for our devices (device
2724 * picks up rssi to closest station instead of to access point).
2725 *
2726 * rndis_host wants to avoid all OID as much as possible
582241a0 2727 * so do promisc/multicast handling in rndis_wlan.
bf164cc0 2728 */
582241a0 2729 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
23d12e2b 2730
bf164cc0 2731 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
a19d7292 2732 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
bf164cc0
JK		 2733 sizeof(tmp));
2734
2735 len = sizeof(tmp);
a19d7292
JK		 2736 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2737 &len);
bf164cc0
JK		 2738 priv->multicast_size = le32_to_cpu(tmp);
2739 if (retval < 0 || priv->multicast_size < 0)
2740 priv->multicast_size = 0;
2741 if (priv->multicast_size > 0)
a19d7292 2742 usbdev->net->flags |= IFF_MULTICAST;
bf164cc0 2743 else
a19d7292 2744 usbdev->net->flags &= ~IFF_MULTICAST;
bf164cc0 2745
5c8fa4f7
JL		 2746 /* fill-out wiphy structure and register w/ cfg80211 */
2747 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2748 wiphy->privid = rndis_wiphy_privid;
2749 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2750 | BIT(NL80211_IFTYPE_ADHOC);
2751 wiphy->max_scan_ssids = 1;
2752
4a7f13ee 2753 /* TODO: fill-out band/encr information based on priv->caps */
582241a0 2754 rndis_wlan_get_caps(usbdev);
5c8fa4f7
JL		 2755
2756 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2757 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2758 priv->band.channels = priv->channels;
2759 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2760 priv->band.bitrates = priv->rates;
2761 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2762 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
4d2a369e 2763 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
5c8fa4f7 2764
4a7f13ee
JK		 2765 memcpy(priv->cipher_suites, rndis_cipher_suites,
2766 sizeof(rndis_cipher_suites));
2767 wiphy->cipher_suites = priv->cipher_suites;
2768 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
2769
5c8fa4f7
JL		 2770 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2771
2772 if (wiphy_register(wiphy)) {
eb1a685e
JK		 2773 retval = -ENODEV;
2774 goto fail;
5c8fa4f7
JL		 2775 }
2776
a19d7292 2777 set_default_iw_params(usbdev);
bf164cc0 2778
d75ec2b7
JK		 2779 /* set default rts/frag */
2780 rndis_set_wiphy_params(wiphy,
2781 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
2782
bf164cc0 2783 /* turn radio on */
051ae0bf
JK		 2784 priv->radio_on = true;
2785 disassociate(usbdev, true);
a19d7292 2786 netif_carrier_off(usbdev->net);
bf164cc0 2787
bf164cc0
JK		 2788 return 0;
2789
2790fail:
305e243e 2791 cancel_delayed_work_sync(&priv->dev_poller_work);
8d4d99ae
JK		 2792 cancel_delayed_work_sync(&priv->scan_work);
2793 cancel_work_sync(&priv->work);
2794 flush_workqueue(priv->workqueue);
2795 destroy_workqueue(priv->workqueue);
2796
eb1a685e 2797 wiphy_free(wiphy);
bf164cc0
JK		 2798 return retval;
2799}
2800
582241a0 2801static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
bf164cc0 2802{
582241a0 2803 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 2804
2805 /* turn radio off */
051ae0bf 2806 disassociate(usbdev, false);
bf164cc0 2807
305e243e 2808 cancel_delayed_work_sync(&priv->dev_poller_work);
71a7b26d 2809 cancel_delayed_work_sync(&priv->scan_work);
bf164cc0
JK		 2810 cancel_work_sync(&priv->work);
2811 flush_workqueue(priv->workqueue);
2812 destroy_workqueue(priv->workqueue);
2813
2814 if (priv && priv->wpa_ie_len)
2815 kfree(priv->wpa_ie);
bf164cc0 2816
a19d7292 2817 rndis_unbind(usbdev, intf);
5c8fa4f7
JL		 2818
2819 wiphy_unregister(priv->wdev.wiphy);
2820 wiphy_free(priv->wdev.wiphy);
bf164cc0
JK		 2821}
2822
582241a0 2823static int rndis_wlan_reset(struct usbnet *usbdev)
bf164cc0 2824{
110736de 2825 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
7eaab708 2826 int retval;
110736de 2827
222ec50a 2828 devdbg(usbdev, "rndis_wlan_reset");
110736de 2829
7eaab708
JK		 2830 retval = rndis_reset(usbdev);
2831 if (retval)
2832 devwarn(usbdev, "rndis_reset() failed: %d", retval);
2833
e5a11a82
JK		 2834 /* rndis_reset cleared multicast list, so restore here.
2835 (set_multicast_list() also turns on current packet filter) */
7eaab708
JK		 2836 set_multicast_list(usbdev);
2837
305e243e
JK		 2838 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
2839 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
110736de 2840
a19d7292 2841 return deauthenticate(usbdev);
bf164cc0
JK		 2842}
2843
222ec50a
JK		 2844static int rndis_wlan_stop(struct usbnet *usbdev)
2845{
110736de
JK		 2846 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2847 int retval;
e5a11a82 2848 __le32 filter;
110736de 2849
222ec50a 2850 devdbg(usbdev, "rndis_wlan_stop");
110736de 2851
051ae0bf 2852 retval = disassociate(usbdev, false);
110736de
JK		 2853
2854 priv->work_pending = 0;
305e243e 2855 cancel_delayed_work_sync(&priv->dev_poller_work);
110736de
JK		 2856 cancel_delayed_work_sync(&priv->scan_work);
2857 cancel_work_sync(&priv->work);
2858 flush_workqueue(priv->workqueue);
2859
005ba2f1
JK		 2860 if (priv->scan_request) {
2861 cfg80211_scan_done(priv->scan_request, true);
2862 priv->scan_request = NULL;
2863 }
2864
e5a11a82
JK		 2865 /* Set current packet filter zero to block receiving data packets from
2866 device. */
2867 filter = 0;
2868 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
2869 sizeof(filter));
2870
110736de 2871 return retval;
222ec50a
JK		 2872}
2873
bf164cc0
JK		 2874static const struct driver_info bcm4320b_info = {
2875 .description = "Wireless RNDIS device, BCM4320b based",
1487cd5e
JK		 2876 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2877 FLAG_AVOID_UNLINK_URBS,
582241a0
JK		 2878 .bind = rndis_wlan_bind,
2879 .unbind = rndis_wlan_unbind,
bf164cc0
JK		 2880 .status = rndis_status,
2881 .rx_fixup = rndis_rx_fixup,
2882 .tx_fixup = rndis_tx_fixup,
582241a0 2883 .reset = rndis_wlan_reset,
222ec50a 2884 .stop = rndis_wlan_stop,
59620e9f 2885 .early_init = bcm4320b_early_init,
2a4901bc 2886 .indication = rndis_wlan_indication,
bf164cc0
JK		 2887};
2888
2889static const struct driver_info bcm4320a_info = {
2890 .description = "Wireless RNDIS device, BCM4320a based",
1487cd5e
JK		 2891 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2892 FLAG_AVOID_UNLINK_URBS,
582241a0
JK		 2893 .bind = rndis_wlan_bind,
2894 .unbind = rndis_wlan_unbind,
bf164cc0
JK		 2895 .status = rndis_status,
2896 .rx_fixup = rndis_rx_fixup,
2897 .tx_fixup = rndis_tx_fixup,
582241a0 2898 .reset = rndis_wlan_reset,
222ec50a 2899 .stop = rndis_wlan_stop,
59620e9f 2900 .early_init = bcm4320a_early_init,
2a4901bc 2901 .indication = rndis_wlan_indication,
bf164cc0
JK		 2902};
2903
582241a0 2904static const struct driver_info rndis_wlan_info = {
bf164cc0 2905 .description = "Wireless RNDIS device",
1487cd5e
JK		 2906 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2907 FLAG_AVOID_UNLINK_URBS,
582241a0
JK		 2908 .bind = rndis_wlan_bind,
2909 .unbind = rndis_wlan_unbind,
bf164cc0
JK		 2910 .status = rndis_status,
2911 .rx_fixup = rndis_rx_fixup,
2912 .tx_fixup = rndis_tx_fixup,
582241a0 2913 .reset = rndis_wlan_reset,
222ec50a 2914 .stop = rndis_wlan_stop,
59620e9f 2915 .early_init = bcm4320a_early_init,
2a4901bc 2916 .indication = rndis_wlan_indication,
bf164cc0
JK		 2917};
2918
2919/*-------------------------------------------------------------------------*/
2920
2921static const struct usb_device_id products [] = {
2922#define RNDIS_MASTER_INTERFACE \
2923 .bInterfaceClass = USB_CLASS_COMM, \
2924 .bInterfaceSubClass = 2 /* ACM */, \
2925 .bInterfaceProtocol = 0x0ff
2926
2927/* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2928 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2929 */
2930{
2931 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2932 | USB_DEVICE_ID_MATCH_DEVICE,
2933 .idVendor = 0x0411,
2934 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2935 RNDIS_MASTER_INTERFACE,
2936 .driver_info = (unsigned long) &bcm4320b_info,
2937}, {
2938 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2939 | USB_DEVICE_ID_MATCH_DEVICE,
2940 .idVendor = 0x0baf,
2941 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2942 RNDIS_MASTER_INTERFACE,
2943 .driver_info = (unsigned long) &bcm4320b_info,
2944}, {
2945 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2946 | USB_DEVICE_ID_MATCH_DEVICE,
2947 .idVendor = 0x050d,
2948 .idProduct = 0x011b, /* Belkin F5D7051 */
2949 RNDIS_MASTER_INTERFACE,
2950 .driver_info = (unsigned long) &bcm4320b_info,
2951}, {
2952 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2953 | USB_DEVICE_ID_MATCH_DEVICE,
2954 .idVendor = 0x1799, /* Belkin has two vendor ids */
2955 .idProduct = 0x011b, /* Belkin F5D7051 */
2956 RNDIS_MASTER_INTERFACE,
2957 .driver_info = (unsigned long) &bcm4320b_info,
2958}, {
2959 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2960 | USB_DEVICE_ID_MATCH_DEVICE,
2961 .idVendor = 0x13b1,
2962 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2963 RNDIS_MASTER_INTERFACE,
2964 .driver_info = (unsigned long) &bcm4320b_info,
2965}, {
2966 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2967 | USB_DEVICE_ID_MATCH_DEVICE,
2968 .idVendor = 0x13b1,
2969 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2970 RNDIS_MASTER_INTERFACE,
2971 .driver_info = (unsigned long) &bcm4320b_info,
2972}, {
2973 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2974 | USB_DEVICE_ID_MATCH_DEVICE,
2975 .idVendor = 0x0b05,
2976 .idProduct = 0x1717, /* Asus WL169gE */
2977 RNDIS_MASTER_INTERFACE,
2978 .driver_info = (unsigned long) &bcm4320b_info,
2979}, {
2980 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2981 | USB_DEVICE_ID_MATCH_DEVICE,
2982 .idVendor = 0x0a5c,
2983 .idProduct = 0xd11b, /* Eminent EM4045 */
2984 RNDIS_MASTER_INTERFACE,
2985 .driver_info = (unsigned long) &bcm4320b_info,
2986}, {
2987 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2988 | USB_DEVICE_ID_MATCH_DEVICE,
2989 .idVendor = 0x1690,
2990 .idProduct = 0x0715, /* BT Voyager 1055 */
2991 RNDIS_MASTER_INTERFACE,
2992 .driver_info = (unsigned long) &bcm4320b_info,
2993},
2994/* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2995 * parameters available, hardware probably contain older firmware version with
2996 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2997 */
2998{
2999 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3000 | USB_DEVICE_ID_MATCH_DEVICE,
3001 .idVendor = 0x13b1,
3002 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3003 RNDIS_MASTER_INTERFACE,
3004 .driver_info = (unsigned long) &bcm4320a_info,
3005}, {
3006 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3007 | USB_DEVICE_ID_MATCH_DEVICE,
3008 .idVendor = 0x0baf,
3009 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3010 RNDIS_MASTER_INTERFACE,
3011 .driver_info = (unsigned long) &bcm4320a_info,
3012}, {
3013 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3014 | USB_DEVICE_ID_MATCH_DEVICE,
3015 .idVendor = 0x0411,
3016 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3017 RNDIS_MASTER_INTERFACE,
3018 .driver_info = (unsigned long) &bcm4320a_info,
3019},
3020/* Generic Wireless RNDIS devices that we don't have exact
3021 * idVendor/idProduct/chip yet.
3022 */
3023{
3024 /* RNDIS is MSFT's un-official variant of CDC ACM */
3025 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
582241a0 3026 .driver_info = (unsigned long) &rndis_wlan_info,
bf164cc0
JK		 3027}, {
3028 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3029 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
582241a0 3030 .driver_info = (unsigned long) &rndis_wlan_info,
bf164cc0
JK		 3031},
3032 { }, // END
3033};
3034MODULE_DEVICE_TABLE(usb, products);
3035
3036static struct usb_driver rndis_wlan_driver = {
3037 .name = "rndis_wlan",
3038 .id_table = products,
3039 .probe = usbnet_probe,
3040 .disconnect = usbnet_disconnect,
3041 .suspend = usbnet_suspend,
3042 .resume = usbnet_resume,
3043};
3044
3045static int __init rndis_wlan_init(void)
3046{
3047 return usb_register(&rndis_wlan_driver);
3048}
3049module_init(rndis_wlan_init);
3050
3051static void __exit rndis_wlan_exit(void)
3052{
3053 usb_deregister(&rndis_wlan_driver);
3054}
3055module_exit(rndis_wlan_exit);
3056
3057MODULE_AUTHOR("Bjorge Dijkstra");
3058MODULE_AUTHOR("Jussi Kivilinna");
3059MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3060MODULE_LICENSE("GPL");
3061
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