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ray_cs: Use static const
[deliverable/linux.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>
5a0e3ad6 44#include <linux/slab.h>
bf164cc0 45#include <net/iw_handler.h>
5c8fa4f7 46#include <net/cfg80211.h>
bf164cc0
JK		 47#include <linux/usb/usbnet.h>
48#include <linux/usb/rndis_host.h>
49
50
51/* NOTE: All these are settings for Broadcom chipset */
52static char modparam_country[4] = "EU";
53module_param_string(country, modparam_country, 4, 0444);
54MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
55
56static int modparam_frameburst = 1;
57module_param_named(frameburst, modparam_frameburst, int, 0444);
58MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
59
60static int modparam_afterburner = 0;
61module_param_named(afterburner, modparam_afterburner, int, 0444);
62MODULE_PARM_DESC(afterburner,
63 "enable afterburner aka '125 High Speed Mode' (default: off)");
64
65static int modparam_power_save = 0;
66module_param_named(power_save, modparam_power_save, int, 0444);
67MODULE_PARM_DESC(power_save,
68 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
69
70static int modparam_power_output = 3;
71module_param_named(power_output, modparam_power_output, int, 0444);
72MODULE_PARM_DESC(power_output,
73 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
74
75static int modparam_roamtrigger = -70;
76module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
77MODULE_PARM_DESC(roamtrigger,
78 "set roaming dBm trigger: -80=optimize for distance, "
79 "-60=bandwidth (default: -70)");
80
81static int modparam_roamdelta = 1;
82module_param_named(roamdelta, modparam_roamdelta, int, 0444);
83MODULE_PARM_DESC(roamdelta,
84 "set roaming tendency: 0=aggressive, 1=moderate, "
85 "2=conservative (default: moderate)");
86
77593ae2 87static int modparam_workaround_interval;
bf164cc0
JK		 88module_param_named(workaround_interval, modparam_workaround_interval,
89 int, 0444);
90MODULE_PARM_DESC(workaround_interval,
77593ae2 91 "set stall workaround interval in msecs (0=disabled) (default: 0)");
bf164cc0
JK		 92
93
94/* various RNDIS OID defs */
35c26c2c
HH		 95#define OID_GEN_LINK_SPEED cpu_to_le32(0x00010107)
96#define OID_GEN_RNDIS_CONFIG_PARAMETER cpu_to_le32(0x0001021b)
97
98#define OID_GEN_XMIT_OK cpu_to_le32(0x00020101)
99#define OID_GEN_RCV_OK cpu_to_le32(0x00020102)
100#define OID_GEN_XMIT_ERROR cpu_to_le32(0x00020103)
101#define OID_GEN_RCV_ERROR cpu_to_le32(0x00020104)
102#define OID_GEN_RCV_NO_BUFFER cpu_to_le32(0x00020105)
103
35c26c2c
HH		 104#define OID_802_3_CURRENT_ADDRESS cpu_to_le32(0x01010102)
105#define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103)
106#define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104)
107
108#define OID_802_11_BSSID cpu_to_le32(0x0d010101)
109#define OID_802_11_SSID cpu_to_le32(0x0d010102)
110#define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108)
111#define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113)
112#define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114)
113#define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115)
114#define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118)
115#define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119)
116#define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a)
117#define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b)
118#define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d)
119#define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e)
120#define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f)
0308383f 121#define OID_802_11_CAPABILITY cpu_to_le32(0x0d010122)
35c26c2c
HH		 122#define OID_802_11_PMKID cpu_to_le32(0x0d010123)
123#define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
124#define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
125#define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
126#define OID_802_11_RSSI cpu_to_le32(0x0d010206)
127#define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
128#define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
129#define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
130#define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
131#define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
132#define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
bf164cc0
JK		 133
134
135/* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
136#define WL_NOISE -96 /* typical noise level in dBm */
137#define WL_SIGMAX -32 /* typical maximum signal level in dBm */
138
139
140/* Assume that Broadcom 4320 (only chipset at time of writing known to be
141 * based on wireless rndis) has default txpower of 13dBm.
142 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
222ec50a
JK		 143 * 100% : 20 mW ~ 13dBm
144 * 75% : 15 mW ~ 12dBm
145 * 50% : 10 mW ~ 10dBm
146 * 25% : 5 mW ~ 7dBm
bf164cc0 147 */
222ec50a
JK		 148#define BCM4320_DEFAULT_TXPOWER_DBM_100 13
149#define BCM4320_DEFAULT_TXPOWER_DBM_75 12
150#define BCM4320_DEFAULT_TXPOWER_DBM_50 10
151#define BCM4320_DEFAULT_TXPOWER_DBM_25 7
bf164cc0
JK		 152
153
154/* codes for "status" field of completion messages */
35c26c2c
HH		 155#define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
156#define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
bf164cc0
JK		 157
158
5cb56af2
JK		 159/* Known device types */
160#define RNDIS_UNKNOWN 0
161#define RNDIS_BCM4320A 1
162#define RNDIS_BCM4320B 2
163
164
bf164cc0
JK		 165/* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
166 * slightly modified for datatype endianess, etc
167 */
168#define NDIS_802_11_LENGTH_SSID 32
169#define NDIS_802_11_LENGTH_RATES 8
170#define NDIS_802_11_LENGTH_RATES_EX 16
171
1e41e1d2 172enum ndis_80211_net_type {
aa18294a
JK		 173 NDIS_80211_TYPE_FREQ_HOP,
174 NDIS_80211_TYPE_DIRECT_SEQ,
175 NDIS_80211_TYPE_OFDM_A,
176 NDIS_80211_TYPE_OFDM_G
1e41e1d2
JK		 177};
178
179enum ndis_80211_net_infra {
aa18294a
JK		 180 NDIS_80211_INFRA_ADHOC,
181 NDIS_80211_INFRA_INFRA,
182 NDIS_80211_INFRA_AUTO_UNKNOWN
1e41e1d2
JK		 183};
184
185enum ndis_80211_auth_mode {
aa18294a
JK		 186 NDIS_80211_AUTH_OPEN,
187 NDIS_80211_AUTH_SHARED,
188 NDIS_80211_AUTH_AUTO_SWITCH,
189 NDIS_80211_AUTH_WPA,
190 NDIS_80211_AUTH_WPA_PSK,
191 NDIS_80211_AUTH_WPA_NONE,
192 NDIS_80211_AUTH_WPA2,
193 NDIS_80211_AUTH_WPA2_PSK
1e41e1d2
JK		 194};
195
196enum ndis_80211_encr_status {
aa18294a
JK		 197 NDIS_80211_ENCR_WEP_ENABLED,
198 NDIS_80211_ENCR_DISABLED,
199 NDIS_80211_ENCR_WEP_KEY_ABSENT,
200 NDIS_80211_ENCR_NOT_SUPPORTED,
201 NDIS_80211_ENCR_TKIP_ENABLED,
202 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
203 NDIS_80211_ENCR_CCMP_ENABLED,
204 NDIS_80211_ENCR_CCMP_KEY_ABSENT
1e41e1d2
JK		 205};
206
207enum ndis_80211_priv_filter {
aa18294a
JK		 208 NDIS_80211_PRIV_ACCEPT_ALL,
209 NDIS_80211_PRIV_8021X_WEP
1e41e1d2
JK		 210};
211
030645ac
JK		 212enum ndis_80211_status_type {
213 NDIS_80211_STATUSTYPE_AUTHENTICATION,
214 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
215 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
216 NDIS_80211_STATUSTYPE_RADIOSTATE,
217};
218
219enum ndis_80211_media_stream_mode {
220 NDIS_80211_MEDIA_STREAM_OFF,
221 NDIS_80211_MEDIA_STREAM_ON
222};
223
224enum ndis_80211_radio_status {
225 NDIS_80211_RADIO_STATUS_ON,
226 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
227 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
228};
229
b4703a2e 230enum ndis_80211_addkey_bits {
aa18294a
JK		 231 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
232 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
233 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
234 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
b4703a2e
JK		 235};
236
237enum ndis_80211_addwep_bits {
aa18294a
JK		 238 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
239 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
b4703a2e
JK		 240};
241
030645ac
JK		 242struct ndis_80211_auth_request {
243 __le32 length;
244 u8 bssid[6];
245 u8 padding[2];
246 __le32 flags;
ba2d3587 247} __packed;
030645ac
JK		 248
249struct ndis_80211_pmkid_candidate {
250 u8 bssid[6];
251 u8 padding[2];
252 __le32 flags;
ba2d3587 253} __packed;
030645ac
JK		 254
255struct ndis_80211_pmkid_cand_list {
256 __le32 version;
257 __le32 num_candidates;
258 struct ndis_80211_pmkid_candidate candidate_list[0];
ba2d3587 259} __packed;
030645ac
JK		 260
261struct ndis_80211_status_indication {
262 __le32 status_type;
263 union {
53d27eaf
JK		 264 __le32 media_stream_mode;
265 __le32 radio_status;
030645ac
JK		 266 struct ndis_80211_auth_request auth_request[0];
267 struct ndis_80211_pmkid_cand_list cand_list;
268 } u;
ba2d3587 269} __packed;
030645ac 270
1e41e1d2 271struct ndis_80211_ssid {
461b3f2a
JK		 272 __le32 length;
273 u8 essid[NDIS_802_11_LENGTH_SSID];
ba2d3587 274} __packed;
bf164cc0 275
1e41e1d2 276struct ndis_80211_conf_freq_hop {
461b3f2a
JK		 277 __le32 length;
278 __le32 hop_pattern;
279 __le32 hop_set;
280 __le32 dwell_time;
ba2d3587 281} __packed;
bf164cc0 282
1e41e1d2 283struct ndis_80211_conf {
461b3f2a
JK		 284 __le32 length;
285 __le32 beacon_period;
286 __le32 atim_window;
287 __le32 ds_config;
288 struct ndis_80211_conf_freq_hop fh_config;
ba2d3587 289} __packed;
bf164cc0 290
1e41e1d2 291struct ndis_80211_bssid_ex {
461b3f2a
JK		 292 __le32 length;
293 u8 mac[6];
294 u8 padding[2];
295 struct ndis_80211_ssid ssid;
296 __le32 privacy;
297 __le32 rssi;
298 __le32 net_type;
299 struct ndis_80211_conf config;
300 __le32 net_infra;
301 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
302 __le32 ie_length;
303 u8 ies[0];
ba2d3587 304} __packed;
bf164cc0 305
1e41e1d2 306struct ndis_80211_bssid_list_ex {
461b3f2a
JK		 307 __le32 num_items;
308 struct ndis_80211_bssid_ex bssid[0];
ba2d3587 309} __packed;
bf164cc0 310
1e41e1d2 311struct ndis_80211_fixed_ies {
461b3f2a
JK		 312 u8 timestamp[8];
313 __le16 beacon_interval;
314 __le16 capabilities;
ba2d3587 315} __packed;
bf164cc0 316
1e41e1d2 317struct ndis_80211_wep_key {
461b3f2a
JK		 318 __le32 size;
319 __le32 index;
320 __le32 length;
321 u8 material[32];
ba2d3587 322} __packed;
bf164cc0 323
1e41e1d2 324struct ndis_80211_key {
461b3f2a
JK		 325 __le32 size;
326 __le32 index;
327 __le32 length;
328 u8 bssid[6];
329 u8 padding[6];
330 u8 rsc[8];
331 u8 material[32];
ba2d3587 332} __packed;
bf164cc0 333
1e41e1d2 334struct ndis_80211_remove_key {
461b3f2a
JK		 335 __le32 size;
336 __le32 index;
337 u8 bssid[6];
9d40934e 338 u8 padding[2];
ba2d3587 339} __packed;
bf164cc0 340
1e41e1d2 341struct ndis_config_param {
461b3f2a
JK		 342 __le32 name_offs;
343 __le32 name_length;
344 __le32 type;
345 __le32 value_offs;
346 __le32 value_length;
ba2d3587 347} __packed;
bf164cc0 348
4364623c
SA		 349struct ndis_80211_assoc_info {
350 __le32 length;
351 __le16 req_ies;
352 struct req_ie {
353 __le16 capa;
354 __le16 listen_interval;
355 u8 cur_ap_address[6];
356 } req_ie;
357 __le32 req_ie_length;
358 __le32 offset_req_ies;
359 __le16 resp_ies;
360 struct resp_ie {
361 __le16 capa;
362 __le16 status_code;
363 __le16 assoc_id;
364 } resp_ie;
365 __le32 resp_ie_length;
366 __le32 offset_resp_ies;
ba2d3587 367} __packed;
4364623c 368
0308383f
JK		 369struct ndis_80211_auth_encr_pair {
370 __le32 auth_mode;
371 __le32 encr_mode;
ba2d3587 372} __packed;
0308383f
JK		 373
374struct ndis_80211_capability {
375 __le32 length;
376 __le32 version;
377 __le32 num_pmkids;
378 __le32 num_auth_encr_pair;
379 struct ndis_80211_auth_encr_pair auth_encr_pair[0];
ba2d3587 380} __packed;
0308383f 381
5a7d0583
JK		 382struct ndis_80211_bssid_info {
383 u8 bssid[6];
384 u8 pmkid[16];
385};
386
387struct ndis_80211_pmkid {
388 __le32 length;
389 __le32 bssid_info_count;
390 struct ndis_80211_bssid_info bssid_info[0];
391};
392
bf164cc0
JK		 393/*
394 * private data
395 */
396#define NET_TYPE_11FB 0
397
398#define CAP_MODE_80211A 1
399#define CAP_MODE_80211B 2
400#define CAP_MODE_80211G 4
401#define CAP_MODE_MASK 7
bf164cc0 402
6010ce07
JK		 403#define WORK_LINK_UP (1<<0)
404#define WORK_LINK_DOWN (1<<1)
405#define WORK_SET_MULTICAST_LIST (1<<2)
bf164cc0 406
5c52323e
JK		 407#define RNDIS_WLAN_ALG_NONE 0
408#define RNDIS_WLAN_ALG_WEP (1<<0)
409#define RNDIS_WLAN_ALG_TKIP (1<<1)
410#define RNDIS_WLAN_ALG_CCMP (1<<2)
411
412#define RNDIS_WLAN_KEY_MGMT_NONE 0
413#define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
414#define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
415
90d07349
JK		 416#define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
417
5c8fa4f7
JL		 418static const struct ieee80211_channel rndis_channels[] = {
419 { .center_freq = 2412 },
420 { .center_freq = 2417 },
421 { .center_freq = 2422 },
422 { .center_freq = 2427 },
423 { .center_freq = 2432 },
424 { .center_freq = 2437 },
425 { .center_freq = 2442 },
426 { .center_freq = 2447 },
427 { .center_freq = 2452 },
428 { .center_freq = 2457 },
429 { .center_freq = 2462 },
430 { .center_freq = 2467 },
431 { .center_freq = 2472 },
432 { .center_freq = 2484 },
433};
434
435static const struct ieee80211_rate rndis_rates[] = {
436 { .bitrate = 10 },
437 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
438 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
439 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
440 { .bitrate = 60 },
441 { .bitrate = 90 },
442 { .bitrate = 120 },
443 { .bitrate = 180 },
444 { .bitrate = 240 },
445 { .bitrate = 360 },
446 { .bitrate = 480 },
447 { .bitrate = 540 }
448};
449
4a7f13ee
JK		 450static const u32 rndis_cipher_suites[] = {
451 WLAN_CIPHER_SUITE_WEP40,
452 WLAN_CIPHER_SUITE_WEP104,
453 WLAN_CIPHER_SUITE_TKIP,
454 WLAN_CIPHER_SUITE_CCMP,
455};
456
b7cfc5b3
JK		 457struct rndis_wlan_encr_key {
458 int len;
84bf8400 459 u32 cipher;
b7cfc5b3
JK		 460 u8 material[32];
461 u8 bssid[ETH_ALEN];
462 bool pairwise;
463 bool tx_key;
464};
465
bf164cc0 466/* RNDIS device private data */
582241a0 467struct rndis_wlan_private {
bf164cc0
JK		 468 struct usbnet *usbdev;
469
5c8fa4f7
JL		 470 struct wireless_dev wdev;
471
71a7b26d
JK		 472 struct cfg80211_scan_request *scan_request;
473
bf164cc0 474 struct workqueue_struct *workqueue;
305e243e 475 struct delayed_work dev_poller_work;
71a7b26d 476 struct delayed_work scan_work;
bf164cc0
JK		 477 struct work_struct work;
478 struct mutex command_lock;
bf164cc0 479 unsigned long work_pending;
8b89a288 480 int last_qual;
bf164cc0 481
5c8fa4f7
JL		 482 struct ieee80211_supported_band band;
483 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
484 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
4a7f13ee 485 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
5c8fa4f7 486
5cb56af2 487 int device_type;
bf164cc0
JK		 488 int caps;
489 int multicast_size;
490
491 /* module parameters */
492 char param_country[4];
493 int param_frameburst;
494 int param_afterburner;
495 int param_power_save;
496 int param_power_output;
497 int param_roamtrigger;
498 int param_roamdelta;
499 u32 param_workaround_interval;
500
501 /* hardware state */
051ae0bf 502 bool radio_on;
bf164cc0 503 int infra_mode;
5c52323e 504 bool connected;
8b89a288 505 u8 bssid[ETH_ALEN];
1e41e1d2 506 struct ndis_80211_ssid essid;
5f81ff5a 507 __le32 current_command_oid;
bf164cc0
JK		 508
509 /* encryption stuff */
510 int encr_tx_key_index;
b7cfc5b3 511 struct rndis_wlan_encr_key encr_keys[4];
bf164cc0 512 int wpa_version;
90d07349
JK		 513
514 u8 command_buffer[COMMAND_BUFFER_SIZE];
bf164cc0
JK		 515};
516
964c1d41
JL		 517/*
518 * cfg80211 ops
519 */
e36d56b6
JB		 520static int rndis_change_virtual_intf(struct wiphy *wiphy,
521 struct net_device *dev,
964c1d41
JL		 522 enum nl80211_iftype type, u32 *flags,
523 struct vif_params *params);
524
71a7b26d
JK		 525static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
526 struct cfg80211_scan_request *request);
527
d75ec2b7
JK		 528static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
529
fa61cf70
JO		 530static int rndis_set_tx_power(struct wiphy *wiphy,
531 enum nl80211_tx_power_setting type,
532 int mbm);
222ec50a
JK		 533static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
534
5c52323e
JK		 535static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
536 struct cfg80211_connect_params *sme);
537
538static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
539 u16 reason_code);
540
541static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
542 struct cfg80211_ibss_params *params);
543
544static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
545
f444de05 546static int rndis_set_channel(struct wiphy *wiphy, struct net_device *dev,
5554adbe
JK		 547 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
548
84bf8400 549static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
e31b8213
JB		 550 u8 key_index, bool pairwise, const u8 *mac_addr,
551 struct key_params *params);
84bf8400
JK		 552
553static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
e31b8213 554 u8 key_index, bool pairwise, const u8 *mac_addr);
84bf8400
JK		 555
556static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
557 u8 key_index);
558
8b89a288
JK		 559static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
560 u8 *mac, struct station_info *sinfo);
561
d695df90
JK		 562static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
563 int idx, u8 *mac, struct station_info *sinfo);
564
5a7d0583
JK		 565static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
566 struct cfg80211_pmksa *pmksa);
567
568static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
569 struct cfg80211_pmksa *pmksa);
570
571static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
572
caa6dfad 573static struct cfg80211_ops rndis_config_ops = {
964c1d41 574 .change_virtual_intf = rndis_change_virtual_intf,
71a7b26d 575 .scan = rndis_scan,
d75ec2b7 576 .set_wiphy_params = rndis_set_wiphy_params,
222ec50a
JK		 577 .set_tx_power = rndis_set_tx_power,
578 .get_tx_power = rndis_get_tx_power,
5c52323e
JK		 579 .connect = rndis_connect,
580 .disconnect = rndis_disconnect,
581 .join_ibss = rndis_join_ibss,
582 .leave_ibss = rndis_leave_ibss,
5554adbe 583 .set_channel = rndis_set_channel,
84bf8400
JK		 584 .add_key = rndis_add_key,
585 .del_key = rndis_del_key,
586 .set_default_key = rndis_set_default_key,
8b89a288 587 .get_station = rndis_get_station,
d695df90 588 .dump_station = rndis_dump_station,
5a7d0583
JK		 589 .set_pmksa = rndis_set_pmksa,
590 .del_pmksa = rndis_del_pmksa,
591 .flush_pmksa = rndis_flush_pmksa,
964c1d41 592};
bf164cc0 593
caa6dfad 594static void *rndis_wiphy_privid = &rndis_wiphy_privid;
bf164cc0 595
bf164cc0 596
582241a0 597static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
bf164cc0 598{
582241a0 599 return (struct rndis_wlan_private *)dev->driver_priv;
bf164cc0
JK		 600}
601
222ec50a 602static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
bf164cc0 603{
222ec50a
JK		 604 switch (priv->param_power_output) {
605 default:
606 case 3:
607 return BCM4320_DEFAULT_TXPOWER_DBM_100;
608 case 2:
609 return BCM4320_DEFAULT_TXPOWER_DBM_75;
610 case 1:
611 return BCM4320_DEFAULT_TXPOWER_DBM_50;
612 case 0:
613 return BCM4320_DEFAULT_TXPOWER_DBM_25;
614 }
bf164cc0
JK		 615}
616
b7cfc5b3
JK		 617static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
618{
619 int cipher = priv->encr_keys[idx].cipher;
620
621 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
622 cipher == WLAN_CIPHER_SUITE_TKIP);
623}
624
5c52323e
JK		 625static int rndis_cipher_to_alg(u32 cipher)
626{
627 switch (cipher) {
628 default:
629 return RNDIS_WLAN_ALG_NONE;
630 case WLAN_CIPHER_SUITE_WEP40:
631 case WLAN_CIPHER_SUITE_WEP104:
632 return RNDIS_WLAN_ALG_WEP;
633 case WLAN_CIPHER_SUITE_TKIP:
634 return RNDIS_WLAN_ALG_TKIP;
635 case WLAN_CIPHER_SUITE_CCMP:
636 return RNDIS_WLAN_ALG_CCMP;
637 }
638}
639
640static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
641{
642 switch (akm_suite) {
643 default:
644 return RNDIS_WLAN_KEY_MGMT_NONE;
645 case WLAN_AKM_SUITE_8021X:
646 return RNDIS_WLAN_KEY_MGMT_802_1X;
647 case WLAN_AKM_SUITE_PSK:
648 return RNDIS_WLAN_KEY_MGMT_PSK;
649 }
650}
651
27b7b5c1
JK		 652#ifdef DEBUG
653static const char *oid_to_string(__le32 oid)
654{
655 switch (oid) {
656#define OID_STR(oid) case oid: return(#oid)
657 /* from rndis_host.h */
658 OID_STR(OID_802_3_PERMANENT_ADDRESS);
659 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
660 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
661 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
662
663 /* from rndis_wlan.c */
664 OID_STR(OID_GEN_LINK_SPEED);
665 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
666
667 OID_STR(OID_GEN_XMIT_OK);
668 OID_STR(OID_GEN_RCV_OK);
669 OID_STR(OID_GEN_XMIT_ERROR);
670 OID_STR(OID_GEN_RCV_ERROR);
671 OID_STR(OID_GEN_RCV_NO_BUFFER);
672
673 OID_STR(OID_802_3_CURRENT_ADDRESS);
674 OID_STR(OID_802_3_MULTICAST_LIST);
675 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
676
677 OID_STR(OID_802_11_BSSID);
678 OID_STR(OID_802_11_SSID);
679 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
680 OID_STR(OID_802_11_ADD_WEP);
681 OID_STR(OID_802_11_REMOVE_WEP);
682 OID_STR(OID_802_11_DISASSOCIATE);
683 OID_STR(OID_802_11_AUTHENTICATION_MODE);
684 OID_STR(OID_802_11_PRIVACY_FILTER);
685 OID_STR(OID_802_11_BSSID_LIST_SCAN);
686 OID_STR(OID_802_11_ENCRYPTION_STATUS);
687 OID_STR(OID_802_11_ADD_KEY);
688 OID_STR(OID_802_11_REMOVE_KEY);
689 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
690 OID_STR(OID_802_11_PMKID);
691 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
692 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
693 OID_STR(OID_802_11_TX_POWER_LEVEL);
694 OID_STR(OID_802_11_RSSI);
695 OID_STR(OID_802_11_RSSI_TRIGGER);
696 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
697 OID_STR(OID_802_11_RTS_THRESHOLD);
698 OID_STR(OID_802_11_SUPPORTED_RATES);
699 OID_STR(OID_802_11_CONFIGURATION);
700 OID_STR(OID_802_11_BSSID_LIST);
701#undef OID_STR
702 }
703
704 return "?";
705}
706#else
707static const char *oid_to_string(__le32 oid)
708{
709 return "?";
710}
711#endif
712
bf164cc0
JK		 713/* translate error code */
714static int rndis_error_status(__le32 rndis_status)
715{
716 int ret = -EINVAL;
717 switch (rndis_status) {
718 case RNDIS_STATUS_SUCCESS:
719 ret = 0;
720 break;
721 case RNDIS_STATUS_FAILURE:
722 case RNDIS_STATUS_INVALID_DATA:
723 ret = -EINVAL;
724 break;
725 case RNDIS_STATUS_NOT_SUPPORTED:
726 ret = -EOPNOTSUPP;
727 break;
728 case RNDIS_STATUS_ADAPTER_NOT_READY:
729 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
730 ret = -EBUSY;
731 break;
732 }
733 return ret;
734}
735
bf164cc0
JK		 736static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
737{
582241a0 738 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
bf164cc0
JK		 739 union {
740 void *buf;
741 struct rndis_msg_hdr *header;
742 struct rndis_query *get;
743 struct rndis_query_c *get_c;
744 } u;
745 int ret, buflen;
80f8c5b4 746 int resplen, respoffs, copylen;
bf164cc0
JK		 747
748 buflen = *len + sizeof(*u.get);
749 if (buflen < CONTROL_BUFFER_SIZE)
750 buflen = CONTROL_BUFFER_SIZE;
90d07349
JK		 751
752 if (buflen > COMMAND_BUFFER_SIZE) {
753 u.buf = kmalloc(buflen, GFP_KERNEL);
754 if (!u.buf)
755 return -ENOMEM;
756 } else {
757 u.buf = priv->command_buffer;
758 }
759
760 mutex_lock(&priv->command_lock);
761
bf164cc0
JK		 762 memset(u.get, 0, sizeof *u.get);
763 u.get->msg_type = RNDIS_MSG_QUERY;
35c26c2c 764 u.get->msg_len = cpu_to_le32(sizeof *u.get);
bf164cc0
JK		 765 u.get->oid = oid;
766
5f81ff5a 767 priv->current_command_oid = oid;
818727ba 768 ret = rndis_command(dev, u.header, buflen);
5f81ff5a 769 priv->current_command_oid = 0;
27b7b5c1 770 if (ret < 0)
60b86755
JP		 771 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
772 __func__, oid_to_string(oid), ret,
773 le32_to_cpu(u.get_c->status));
27b7b5c1 774
bf164cc0 775 if (ret == 0) {
80f8c5b4
JK		 776 resplen = le32_to_cpu(u.get_c->len);
777 respoffs = le32_to_cpu(u.get_c->offset) + 8;
c1f8ca1d 778
80f8c5b4
JK		 779 if (respoffs > buflen) {
780 /* Device returned data offset outside buffer, error. */
781 netdev_dbg(dev->net, "%s(%s): received invalid "
782 "data offset: %d > %d\n", __func__,
783 oid_to_string(oid), respoffs, buflen);
c1f8ca1d 784
80f8c5b4
JK		 785 ret = -EINVAL;
786 goto exit_unlock;
787 }
788
789 if ((resplen + respoffs) > buflen) {
790 /* Device would have returned more data if buffer would
791 * have been big enough. Copy just the bits that we got.
792 */
793 copylen = buflen - respoffs;
794 } else {
795 copylen = resplen;
796 }
797
798 if (copylen > *len)
799 copylen = *len;
800
801 memcpy(data, u.buf + respoffs, copylen);
802
803 *len = resplen;
27b7b5c1 804
c1f8ca1d 805 ret = rndis_error_status(u.get_c->status);
27b7b5c1 806 if (ret < 0)
60b86755
JP		 807 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
808 __func__, oid_to_string(oid),
809 le32_to_cpu(u.get_c->status), ret);
bf164cc0
JK		 810 }
811
80f8c5b4 812exit_unlock:
90d07349
JK		 813 mutex_unlock(&priv->command_lock);
814
815 if (u.buf != priv->command_buffer)
816 kfree(u.buf);
bf164cc0
JK		 817 return ret;
818}
819
bf164cc0
JK		 820static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
821{
582241a0 822 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
bf164cc0
JK		 823 union {
824 void *buf;
825 struct rndis_msg_hdr *header;
826 struct rndis_set *set;
827 struct rndis_set_c *set_c;
828 } u;
829 int ret, buflen;
830
831 buflen = len + sizeof(*u.set);
832 if (buflen < CONTROL_BUFFER_SIZE)
833 buflen = CONTROL_BUFFER_SIZE;
90d07349
JK		 834
835 if (buflen > COMMAND_BUFFER_SIZE) {
836 u.buf = kmalloc(buflen, GFP_KERNEL);
837 if (!u.buf)
838 return -ENOMEM;
839 } else {
840 u.buf = priv->command_buffer;
841 }
842
843 mutex_lock(&priv->command_lock);
bf164cc0
JK		 844
845 memset(u.set, 0, sizeof *u.set);
846 u.set->msg_type = RNDIS_MSG_SET;
847 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
848 u.set->oid = oid;
849 u.set->len = cpu_to_le32(len);
35c26c2c
HH		 850 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
851 u.set->handle = cpu_to_le32(0);
bf164cc0
JK		 852 memcpy(u.buf + sizeof(*u.set), data, len);
853
5f81ff5a 854 priv->current_command_oid = oid;
818727ba 855 ret = rndis_command(dev, u.header, buflen);
5f81ff5a 856 priv->current_command_oid = 0;
27b7b5c1 857 if (ret < 0)
60b86755
JP		 858 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
859 __func__, oid_to_string(oid), ret,
860 le32_to_cpu(u.set_c->status));
27b7b5c1
JK		 861
862 if (ret == 0) {
bf164cc0
JK		 863 ret = rndis_error_status(u.set_c->status);
864
27b7b5c1 865 if (ret < 0)
60b86755
JP		 866 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
867 __func__, oid_to_string(oid),
868 le32_to_cpu(u.set_c->status), ret);
27b7b5c1
JK		 869 }
870
90d07349
JK		 871 mutex_unlock(&priv->command_lock);
872
873 if (u.buf != priv->command_buffer)
874 kfree(u.buf);
bf164cc0
JK		 875 return ret;
876}
877
7eaab708
JK		 878static int rndis_reset(struct usbnet *usbdev)
879{
880 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
881 struct rndis_reset *reset;
882 int ret;
883
884 mutex_lock(&priv->command_lock);
885
886 reset = (void *)priv->command_buffer;
887 memset(reset, 0, sizeof(*reset));
888 reset->msg_type = RNDIS_MSG_RESET;
889 reset->msg_len = cpu_to_le32(sizeof(*reset));
5f81ff5a 890 priv->current_command_oid = 0;
7eaab708
JK		 891 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
892
893 mutex_unlock(&priv->command_lock);
894
895 if (ret < 0)
896 return ret;
897 return 0;
898}
899
bf164cc0
JK		 900/*
901 * Specs say that we can only set config parameters only soon after device
902 * initialization.
903 * value_type: 0 = u32, 2 = unicode string
904 */
905static int rndis_set_config_parameter(struct usbnet *dev, char *param,
906 int value_type, void *value)
907{
1e41e1d2 908 struct ndis_config_param *infobuf;
bf164cc0
JK		 909 int value_len, info_len, param_len, ret, i;
910 __le16 *unibuf;
911 __le32 *dst_value;
912
913 if (value_type == 0)
914 value_len = sizeof(__le32);
915 else if (value_type == 2)
916 value_len = strlen(value) * sizeof(__le16);
917 else
918 return -EINVAL;
919
920 param_len = strlen(param) * sizeof(__le16);
921 info_len = sizeof(*infobuf) + param_len + value_len;
922
923#ifdef DEBUG
924 info_len += 12;
925#endif
926 infobuf = kmalloc(info_len, GFP_KERNEL);
927 if (!infobuf)
928 return -ENOMEM;
929
930#ifdef DEBUG
931 info_len -= 12;
932 /* extra 12 bytes are for padding (debug output) */
933 memset(infobuf, 0xCC, info_len + 12);
934#endif
935
936 if (value_type == 2)
60b86755
JP		 937 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
938 param, (u8 *)value);
bf164cc0 939 else
60b86755
JP		 940 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
941 param, *(u32 *)value);
bf164cc0 942
461b3f2a
JK		 943 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
944 infobuf->name_length = cpu_to_le32(param_len);
945 infobuf->type = cpu_to_le32(value_type);
946 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
947 infobuf->value_length = cpu_to_le32(value_len);
bf164cc0
JK		 948
949 /* simple string to unicode string conversion */
950 unibuf = (void *)infobuf + sizeof(*infobuf);
951 for (i = 0; i < param_len / sizeof(__le16); i++)
952 unibuf[i] = cpu_to_le16(param[i]);
953
954 if (value_type == 2) {
955 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
956 for (i = 0; i < value_len / sizeof(__le16); i++)
957 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
958 } else {
959 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
960 *dst_value = cpu_to_le32(*(u32 *)value);
961 }
962
963#ifdef DEBUG
60b86755 964 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
bf164cc0
JK		 965 for (i = 0; i < info_len; i += 12) {
966 u32 *tmp = (u32 *)((u8 *)infobuf + i);
60b86755
JP		 967 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
968 cpu_to_be32(tmp[0]),
969 cpu_to_be32(tmp[1]),
970 cpu_to_be32(tmp[2]));
bf164cc0
JK		 971 }
972#endif
973
974 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
975 infobuf, info_len);
976 if (ret != 0)
60b86755
JP		 977 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
978 ret);
bf164cc0
JK		 979
980 kfree(infobuf);
981 return ret;
982}
983
984static int rndis_set_config_parameter_str(struct usbnet *dev,
985 char *param, char *value)
986{
c5c4fe90 987 return rndis_set_config_parameter(dev, param, 2, value);
bf164cc0
JK		 988}
989
bf164cc0
JK		 990/*
991 * data conversion functions
992 */
993static int level_to_qual(int level)
994{
995 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
996 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
997}
998
bf164cc0
JK		 999/*
1000 * common functions
1001 */
9f77ccab 1002static int set_infra_mode(struct usbnet *usbdev, int mode);
b7cfc5b3 1003static void restore_keys(struct usbnet *usbdev);
b5257c95
JK		 1004static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
1005 bool *matched);
bf164cc0 1006
5cb56af2
JK		 1007static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
1008{
1009 __le32 tmp;
1010
1011 /* Note: OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
1012 tmp = cpu_to_le32(1);
1013 return rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1014 sizeof(tmp));
1015}
1016
1e41e1d2 1017static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
bf164cc0 1018{
582241a0 1019 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1020 int ret;
1021
1022 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
5c52323e 1023 if (ret < 0) {
60b86755 1024 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
5c52323e
JK		 1025 return ret;
1026 }
bf164cc0
JK		 1027 if (ret == 0) {
1028 memcpy(&priv->essid, ssid, sizeof(priv->essid));
051ae0bf 1029 priv->radio_on = true;
60b86755 1030 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
bf164cc0
JK		 1031 }
1032
1033 return ret;
1034}
1035
5c52323e
JK		 1036static int set_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1037{
1038 int ret;
1039
1040 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1041 if (ret < 0) {
60b86755
JP		 1042 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1043 bssid, ret);
5c52323e
JK		 1044 return ret;
1045 }
1046
1047 return ret;
1048}
1049
1050static int clear_bssid(struct usbnet *usbdev)
1051{
1052 u8 broadcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1053
1054 return set_bssid(usbdev, broadcast_mac);
1055}
bf164cc0
JK		 1056
1057static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1058{
1059 int ret, len;
1060
1061 len = ETH_ALEN;
1062 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
1063
1064 if (ret != 0)
1065 memset(bssid, 0, ETH_ALEN);
1066
1067 return ret;
1068}
1069
4364623c
SA		 1070static int get_association_info(struct usbnet *usbdev,
1071 struct ndis_80211_assoc_info *info, int len)
1072{
1073 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
1074 info, &len);
1075}
bf164cc0 1076
5c52323e 1077static bool is_associated(struct usbnet *usbdev)
bf164cc0 1078{
5c52323e 1079 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1080 u8 bssid[ETH_ALEN];
1081 int ret;
1082
5c52323e
JK		 1083 if (!priv->radio_on)
1084 return false;
1085
bf164cc0
JK		 1086 ret = get_bssid(usbdev, bssid);
1087
7b1fff99 1088 return (ret == 0 && !is_zero_ether_addr(bssid));
bf164cc0
JK		 1089}
1090
051ae0bf 1091static int disassociate(struct usbnet *usbdev, bool reset_ssid)
bf164cc0 1092{
582241a0 1093 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1e41e1d2 1094 struct ndis_80211_ssid ssid;
bf164cc0
JK		 1095 int i, ret = 0;
1096
1097 if (priv->radio_on) {
1098 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1099 if (ret == 0) {
051ae0bf 1100 priv->radio_on = false;
60b86755
JP		 1101 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1102 __func__);
bf164cc0
JK		 1103
1104 if (reset_ssid)
1105 msleep(100);
1106 }
1107 }
1108
1109 /* disassociate causes radio to be turned off; if reset_ssid
1110 * is given, set random ssid to enable radio */
1111 if (reset_ssid) {
9f77ccab
JK		 1112 /* Set device to infrastructure mode so we don't get ad-hoc
1113 * 'media connect' indications with the random ssid.
1114 */
1115 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1116
461b3f2a
JK		 1117 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1118 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1119 ssid.essid[0] = 0x1;
1120 ssid.essid[1] = 0xff;
1121 for (i = 2; i < sizeof(ssid.essid); i++)
1122 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
bf164cc0
JK		 1123 ret = set_essid(usbdev, &ssid);
1124 }
1125 return ret;
1126}
1127
5c52323e
JK		 1128static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1129 enum nl80211_auth_type auth_type, int keymgmt)
bf164cc0 1130{
582241a0 1131 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1132 __le32 tmp;
1133 int auth_mode, ret;
1134
60b86755
JP		 1135 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1136 __func__, wpa_version, auth_type, keymgmt);
bf164cc0 1137
5c52323e
JK		 1138 if (wpa_version & NL80211_WPA_VERSION_2) {
1139 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
aa18294a 1140 auth_mode = NDIS_80211_AUTH_WPA2;
bf164cc0 1141 else
aa18294a 1142 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
5c52323e
JK		 1143 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1144 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
aa18294a 1145 auth_mode = NDIS_80211_AUTH_WPA;
5c52323e 1146 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
aa18294a 1147 auth_mode = NDIS_80211_AUTH_WPA_PSK;
bf164cc0 1148 else
aa18294a 1149 auth_mode = NDIS_80211_AUTH_WPA_NONE;
5c52323e
JK		 1150 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1151 auth_mode = NDIS_80211_AUTH_SHARED;
1152 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
aa18294a 1153 auth_mode = NDIS_80211_AUTH_OPEN;
634a555c
JK		 1154 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1155 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
5c52323e
JK		 1156 else
1157 return -ENOTSUPP;
bf164cc0
JK		 1158
1159 tmp = cpu_to_le32(auth_mode);
1160 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1161 sizeof(tmp));
1162 if (ret != 0) {
60b86755
JP		 1163 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1164 ret);
bf164cc0
JK		 1165 return ret;
1166 }
1167
1168 priv->wpa_version = wpa_version;
5c52323e 1169
bf164cc0
JK		 1170 return 0;
1171}
1172
bf164cc0
JK		 1173static int set_priv_filter(struct usbnet *usbdev)
1174{
582241a0 1175 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1176 __le32 tmp;
1177
60b86755
JP		 1178 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1179 __func__, priv->wpa_version);
bf164cc0 1180
5c52323e
JK		 1181 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1182 priv->wpa_version & NL80211_WPA_VERSION_1)
aa18294a 1183 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
bf164cc0 1184 else
aa18294a 1185 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
bf164cc0
JK		 1186
1187 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1188 sizeof(tmp));
1189}
1190
bf164cc0
JK		 1191static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1192{
bf164cc0
JK		 1193 __le32 tmp;
1194 int encr_mode, ret;
1195
60b86755
JP		 1196 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1197 __func__, pairwise, groupwise);
bf164cc0 1198
5c52323e 1199 if (pairwise & RNDIS_WLAN_ALG_CCMP)
aa18294a 1200 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
5c52323e 1201 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
aa18294a 1202 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
5c52323e 1203 else if (pairwise & RNDIS_WLAN_ALG_WEP)
aa18294a 1204 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
5c52323e 1205 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
aa18294a 1206 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
5c52323e 1207 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
aa18294a 1208 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
bf164cc0 1209 else
aa18294a 1210 encr_mode = NDIS_80211_ENCR_DISABLED;
bf164cc0
JK		 1211
1212 tmp = cpu_to_le32(encr_mode);
1213 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1214 sizeof(tmp));
1215 if (ret != 0) {
60b86755
JP		 1216 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1217 ret);
bf164cc0
JK		 1218 return ret;
1219 }
1220
bf164cc0
JK		 1221 return 0;
1222}
1223
bf164cc0
JK		 1224static int set_infra_mode(struct usbnet *usbdev, int mode)
1225{
582241a0 1226 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 1227 __le32 tmp;
b7cfc5b3 1228 int ret;
bf164cc0 1229
60b86755
JP		 1230 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1231 __func__, priv->infra_mode);
bf164cc0
JK		 1232
1233 tmp = cpu_to_le32(mode);
1234 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1235 sizeof(tmp));
1236 if (ret != 0) {
60b86755
JP		 1237 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1238 ret);
bf164cc0
JK		 1239 return ret;
1240 }
1241
1242 /* NDIS drivers clear keys when infrastructure mode is
1243 * changed. But Linux tools assume otherwise. So set the
1244 * keys */
b7cfc5b3 1245 restore_keys(usbdev);
bf164cc0
JK		 1246
1247 priv->infra_mode = mode;
1248 return 0;
1249}
1250
d75ec2b7
JK		 1251static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1252{
1253 __le32 tmp;
1254
60b86755 1255 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
d75ec2b7
JK		 1256
1257 if (rts_threshold < 0 || rts_threshold > 2347)
1258 rts_threshold = 2347;
1259
1260 tmp = cpu_to_le32(rts_threshold);
1261 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1262 sizeof(tmp));
1263}
1264
d75ec2b7
JK		 1265static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1266{
1267 __le32 tmp;
1268
60b86755 1269 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
d75ec2b7
JK		 1270
1271 if (frag_threshold < 256 || frag_threshold > 2346)
1272 frag_threshold = 2346;
1273
1274 tmp = cpu_to_le32(frag_threshold);
1275 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1276 sizeof(tmp));
1277}
1278
bf164cc0
JK		 1279static void set_default_iw_params(struct usbnet *usbdev)
1280{
aa18294a 1281 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
5c52323e
JK		 1282 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1283 RNDIS_WLAN_KEY_MGMT_NONE);
bf164cc0 1284 set_priv_filter(usbdev);
5c52323e 1285 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
bf164cc0
JK		 1286}
1287
bf164cc0
JK		 1288static int deauthenticate(struct usbnet *usbdev)
1289{
1290 int ret;
1291
051ae0bf 1292 ret = disassociate(usbdev, true);
bf164cc0
JK		 1293 set_default_iw_params(usbdev);
1294 return ret;
1295}
1296
5c52323e
JK		 1297static int set_channel(struct usbnet *usbdev, int channel)
1298{
1299 struct ndis_80211_conf config;
1300 unsigned int dsconfig;
1301 int len, ret;
1302
60b86755 1303 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
5c52323e
JK		 1304
1305 /* this OID is valid only when not associated */
1306 if (is_associated(usbdev))
1307 return 0;
1308
1309 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1310
1311 len = sizeof(config);
1312 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1313 if (ret < 0) {
60b86755
JP		 1314 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1315 __func__);
5c52323e
JK		 1316 return ret;
1317 }
1318
1319 config.ds_config = cpu_to_le32(dsconfig);
1320 ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1321 sizeof(config));
1322
60b86755 1323 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
5c52323e
JK		 1324
1325 return ret;
1326}
1327
bf164cc0 1328/* index must be 0 - N, as per NDIS */
5c52323e
JK		 1329static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1330 int index)
bf164cc0 1331{
582241a0 1332 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1e41e1d2 1333 struct ndis_80211_wep_key ndis_key;
84bf8400
JK		 1334 u32 cipher;
1335 int ret;
1336
60b86755
JP		 1337 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1338 __func__, index, key_len);
bf164cc0 1339
40ba60dd 1340 if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
bf164cc0
JK		 1341 return -EINVAL;
1342
b7cfc5b3
JK		 1343 if (key_len == 5)
1344 cipher = WLAN_CIPHER_SUITE_WEP40;
1345 else
1346 cipher = WLAN_CIPHER_SUITE_WEP104;
1347
bf164cc0
JK		 1348 memset(&ndis_key, 0, sizeof(ndis_key));
1349
461b3f2a
JK		 1350 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1351 ndis_key.length = cpu_to_le32(key_len);
1352 ndis_key.index = cpu_to_le32(index);
1353 memcpy(&ndis_key.material, key, key_len);
bf164cc0
JK		 1354
1355 if (index == priv->encr_tx_key_index) {
aa18294a 1356 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
5c52323e
JK		 1357 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1358 RNDIS_WLAN_ALG_NONE);
bf164cc0 1359 if (ret)
60b86755
JP		 1360 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1361 ret);
bf164cc0
JK		 1362 }
1363
1364 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1365 sizeof(ndis_key));
1366 if (ret != 0) {
60b86755
JP		 1367 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1368 index + 1, ret);
bf164cc0
JK		 1369 return ret;
1370 }
1371
b7cfc5b3
JK		 1372 priv->encr_keys[index].len = key_len;
1373 priv->encr_keys[index].cipher = cipher;
1374 memcpy(&priv->encr_keys[index].material, key, key_len);
1375 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
bf164cc0
JK		 1376
1377 return 0;
1378}
1379
b145ee0c 1380static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
84bf8400 1381 int index, const u8 *addr, const u8 *rx_seq,
53d27eaf 1382 int seq_len, u32 cipher, __le32 flags)
b145ee0c 1383{
582241a0 1384 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
b145ee0c 1385 struct ndis_80211_key ndis_key;
b7cfc5b3 1386 bool is_addr_ok;
b145ee0c
JK		 1387 int ret;
1388
b7cfc5b3 1389 if (index < 0 || index >= 4) {
60b86755
JP		 1390 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1391 __func__, index);
b145ee0c 1392 return -EINVAL;
b7cfc5b3
JK		 1393 }
1394 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
60b86755
JP		 1395 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1396 __func__, key_len);
b145ee0c 1397 return -EINVAL;
b7cfc5b3 1398 }
84bf8400
JK		 1399 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1400 if (!rx_seq || seq_len <= 0) {
60b86755
JP		 1401 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1402 __func__);
84bf8400
JK		 1403 return -EINVAL;
1404 }
1405 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
60b86755 1406 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
84bf8400
JK		 1407 return -EINVAL;
1408 }
b7cfc5b3 1409 }
84bf8400 1410
7b1fff99
JK		 1411 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1412 !is_broadcast_ether_addr(addr);
b7cfc5b3 1413 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
60b86755
JP		 1414 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1415 __func__, addr);
b145ee0c 1416 return -EINVAL;
b7cfc5b3 1417 }
b145ee0c 1418
60b86755
JP		 1419 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1420 __func__, index,
1421 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1422 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1423 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
b145ee0c
JK		 1424
1425 memset(&ndis_key, 0, sizeof(ndis_key));
1426
1427 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1428 sizeof(ndis_key.material) + key_len);
1429 ndis_key.length = cpu_to_le32(key_len);
1430 ndis_key.index = cpu_to_le32(index) | flags;
1431
b7cfc5b3 1432 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
b145ee0c
JK		 1433 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1434 * different order than NDIS spec, so swap the order here. */
1435 memcpy(ndis_key.material, key, 16);
1436 memcpy(ndis_key.material + 16, key + 24, 8);
1437 memcpy(ndis_key.material + 24, key + 16, 8);
1438 } else
1439 memcpy(ndis_key.material, key, key_len);
1440
aa18294a 1441 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
84bf8400 1442 memcpy(ndis_key.rsc, rx_seq, seq_len);
b145ee0c 1443
aa18294a 1444 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
b145ee0c 1445 /* pairwise key */
b7cfc5b3 1446 memcpy(ndis_key.bssid, addr, ETH_ALEN);
b145ee0c
JK		 1447 } else {
1448 /* group key */
aa18294a 1449 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
b145ee0c
JK		 1450 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1451 else
1452 get_bssid(usbdev, ndis_key.bssid);
1453 }
1454
1455 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1456 le32_to_cpu(ndis_key.size));
60b86755
JP		 1457 netdev_dbg(usbdev->net, "%s(): OID_802_11_ADD_KEY -> %08X\n",
1458 __func__, ret);
b145ee0c
JK		 1459 if (ret != 0)
1460 return ret;
1461
b7cfc5b3
JK		 1462 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1463 priv->encr_keys[index].len = key_len;
1464 priv->encr_keys[index].cipher = cipher;
1465 memcpy(&priv->encr_keys[index].material, key, key_len);
1466 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1467 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1468 else
1469 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
9839178e 1470
aa18294a 1471 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
b145ee0c
JK		 1472 priv->encr_tx_key_index = index;
1473
1474 return 0;
1475}
1476
b7cfc5b3
JK		 1477static int restore_key(struct usbnet *usbdev, int key_idx)
1478{
1479 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1480 struct rndis_wlan_encr_key key;
84bf8400
JK		 1481
1482 if (is_wpa_key(priv, key_idx))
1483 return 0;
b7cfc5b3
JK		 1484
1485 key = priv->encr_keys[key_idx];
1486
60b86755 1487 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
b7cfc5b3
JK		 1488
1489 if (key.len == 0)
1490 return 0;
1491
b7cfc5b3
JK		 1492 return add_wep_key(usbdev, key.material, key.len, key_idx);
1493}
1494
b7cfc5b3
JK		 1495static void restore_keys(struct usbnet *usbdev)
1496{
1497 int i;
1498
1499 for (i = 0; i < 4; i++)
1500 restore_key(usbdev, i);
1501}
1502
b7cfc5b3
JK		 1503static void clear_key(struct rndis_wlan_private *priv, int idx)
1504{
1505 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1506}
1507
bf164cc0 1508/* remove_key is for both wep and wpa */
84bf8400 1509static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
bf164cc0 1510{
582241a0 1511 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1e41e1d2 1512 struct ndis_80211_remove_key remove_key;
bf164cc0 1513 __le32 keyindex;
b7cfc5b3 1514 bool is_wpa;
bf164cc0
JK		 1515 int ret;
1516
b7cfc5b3 1517 if (priv->encr_keys[index].len == 0)
bf164cc0
JK		 1518 return 0;
1519
b7cfc5b3 1520 is_wpa = is_wpa_key(priv, index);
bf164cc0 1521
60b86755
JP		 1522 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1523 __func__, index, is_wpa ? "wpa" : "wep",
1524 priv->encr_keys[index].len);
b7cfc5b3
JK		 1525
1526 clear_key(priv, index);
1527
1528 if (is_wpa) {
461b3f2a
JK		 1529 remove_key.size = cpu_to_le32(sizeof(remove_key));
1530 remove_key.index = cpu_to_le32(index);
bf164cc0
JK		 1531 if (bssid) {
1532 /* pairwise key */
7b1fff99 1533 if (!is_broadcast_ether_addr(bssid))
b4703a2e 1534 remove_key.index |=
aa18294a 1535 NDIS_80211_ADDKEY_PAIRWISE_KEY;
461b3f2a
JK		 1536 memcpy(remove_key.bssid, bssid,
1537 sizeof(remove_key.bssid));
bf164cc0 1538 } else
461b3f2a
JK		 1539 memset(remove_key.bssid, 0xff,
1540 sizeof(remove_key.bssid));
bf164cc0
JK		 1541
1542 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1543 sizeof(remove_key));
1544 if (ret != 0)
1545 return ret;
1546 } else {
1547 keyindex = cpu_to_le32(index);
1548 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1549 sizeof(keyindex));
1550 if (ret != 0) {
60b86755
JP		 1551 netdev_warn(usbdev->net,
1552 "removing encryption key %d failed (%08X)\n",
1553 index, ret);
bf164cc0
JK		 1554 return ret;
1555 }
1556 }
1557
1558 /* if it is transmit key, disable encryption */
1559 if (index == priv->encr_tx_key_index)
5c52323e 1560 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
bf164cc0
JK		 1561
1562 return 0;
1563}
1564
bf164cc0
JK		 1565static void set_multicast_list(struct usbnet *usbdev)
1566{
582241a0 1567 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
22bedad3 1568 struct netdev_hw_addr *ha;
12c3400a
JP		 1569 __le32 filter, basefilter;
1570 int ret;
1571 char *mc_addrs = NULL;
1572 int mc_count;
bf164cc0 1573
12c3400a
JP		 1574 basefilter = filter = RNDIS_PACKET_TYPE_DIRECTED |
1575 RNDIS_PACKET_TYPE_BROADCAST;
bf164cc0
JK		 1576
1577 if (usbdev->net->flags & IFF_PROMISC) {
1578 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1579 RNDIS_PACKET_TYPE_ALL_LOCAL;
12c3400a
JP		 1580 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1581 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1582 }
1583
1584 if (filter != basefilter)
1585 goto set_filter;
1586
1587 /*
1588 * mc_list should be accessed holding the lock, so copy addresses to
1589 * local buffer first.
1590 */
1591 netif_addr_lock_bh(usbdev->net);
1592 mc_count = netdev_mc_count(usbdev->net);
1593 if (mc_count > priv->multicast_size) {
bf164cc0 1594 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
12c3400a
JP		 1595 } else if (mc_count) {
1596 int i = 0;
1597
1598 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1599 if (!mc_addrs) {
60b86755
JP		 1600 netdev_warn(usbdev->net,
1601 "couldn't alloc %d bytes of memory\n",
12c3400a 1602 mc_count * ETH_ALEN);
655ffee2 1603 netif_addr_unlock_bh(usbdev->net);
bf164cc0
JK		 1604 return;
1605 }
1606
22bedad3 1607 netdev_for_each_mc_addr(ha, usbdev->net)
12c3400a 1608 memcpy(mc_addrs + i++ * ETH_ALEN,
22bedad3 1609 ha->addr, ETH_ALEN);
12c3400a
JP		 1610 }
1611 netif_addr_unlock_bh(usbdev->net);
bf164cc0 1612
12c3400a
JP		 1613 if (filter != basefilter)
1614 goto set_filter;
1615
1616 if (mc_count) {
1617 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, mc_addrs,
1618 mc_count * ETH_ALEN);
1619 kfree(mc_addrs);
1620 if (ret == 0)
bf164cc0
JK		 1621 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1622 else
1623 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1624
60b86755 1625 netdev_dbg(usbdev->net, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
12c3400a 1626 mc_count, priv->multicast_size, ret);
bf164cc0
JK		 1627 }
1628
12c3400a 1629set_filter:
bf164cc0
JK		 1630 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1631 sizeof(filter));
1632 if (ret < 0) {
60b86755
JP		 1633 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1634 le32_to_cpu(filter));
bf164cc0
JK		 1635 }
1636
60b86755
JP		 1637 netdev_dbg(usbdev->net, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1638 le32_to_cpu(filter), ret);
bf164cc0
JK		 1639}
1640
5a7d0583
JK		 1641#ifdef DEBUG
1642static void debug_print_pmkids(struct usbnet *usbdev,
1643 struct ndis_80211_pmkid *pmkids,
1644 const char *func_str)
1645{
1646 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1647 int i, len, count, max_pmkids, entry_len;
1648
1649 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1650 len = le32_to_cpu(pmkids->length);
1651 count = le32_to_cpu(pmkids->bssid_info_count);
1652
1653 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1654
1655 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1656 "%d)\n", func_str, count, len, entry_len);
1657
1658 if (count > max_pmkids)
1659 count = max_pmkids;
1660
1661 for (i = 0; i < count; i++) {
1662 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1663
1664 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1665 "pmkid: %08X:%08X:%08X:%08X\n",
1666 func_str, pmkids->bssid_info[i].bssid,
1667 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1668 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1669 }
1670}
1671#else
1672static void debug_print_pmkids(struct usbnet *usbdev,
1673 struct ndis_80211_pmkid *pmkids,
1674 const char *func_str)
1675{
1676 return;
1677}
1678#endif
1679
1680static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1681{
1682 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1683 struct ndis_80211_pmkid *pmkids;
1684 int len, ret, max_pmkids;
1685
1686 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1687 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1688
1689 pmkids = kzalloc(len, GFP_KERNEL);
1690 if (!pmkids)
1691 return ERR_PTR(-ENOMEM);
1692
1693 pmkids->length = cpu_to_le32(len);
1694 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1695
1696 ret = rndis_query_oid(usbdev, OID_802_11_PMKID, pmkids, &len);
1697 if (ret < 0) {
1698 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d)"
1699 " -> %d\n", __func__, len, max_pmkids, ret);
1700
1701 kfree(pmkids);
1702 return ERR_PTR(ret);
1703 }
1704
1705 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1706 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1707
1708 debug_print_pmkids(usbdev, pmkids, __func__);
1709
1710 return pmkids;
1711}
1712
1713static int set_device_pmkids(struct usbnet *usbdev,
1714 struct ndis_80211_pmkid *pmkids)
1715{
1716 int ret, len, num_pmkids;
1717
1718 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1719 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1720 pmkids->length = cpu_to_le32(len);
1721
1722 debug_print_pmkids(usbdev, pmkids, __func__);
1723
1724 ret = rndis_set_oid(usbdev, OID_802_11_PMKID, pmkids,
1725 le32_to_cpu(pmkids->length));
1726 if (ret < 0) {
1727 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d) -> %d"
1728 "\n", __func__, len, num_pmkids, ret);
1729 }
1730
1731 kfree(pmkids);
1732 return ret;
1733}
1734
1735static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1736 struct ndis_80211_pmkid *pmkids,
1737 struct cfg80211_pmksa *pmksa,
1738 int max_pmkids)
1739{
1740 int i, len, count, newlen, err;
1741
1742 len = le32_to_cpu(pmkids->length);
1743 count = le32_to_cpu(pmkids->bssid_info_count);
1744
1745 if (count > max_pmkids)
1746 count = max_pmkids;
1747
1748 for (i = 0; i < count; i++)
1749 if (!compare_ether_addr(pmkids->bssid_info[i].bssid,
1750 pmksa->bssid))
1751 break;
1752
1753 /* pmkid not found */
1754 if (i == count) {
1755 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1756 __func__, pmksa->bssid);
1757 err = -ENOENT;
1758 goto error;
1759 }
1760
1761 for (; i + 1 < count; i++)
1762 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1763
1764 count--;
1765 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1766
1767 pmkids->length = cpu_to_le32(newlen);
1768 pmkids->bssid_info_count = cpu_to_le32(count);
1769
1770 return pmkids;
1771error:
1772 kfree(pmkids);
1773 return ERR_PTR(err);
1774}
1775
1776static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1777 struct ndis_80211_pmkid *pmkids,
1778 struct cfg80211_pmksa *pmksa,
1779 int max_pmkids)
1780{
1781 int i, err, len, count, newlen;
1782
1783 len = le32_to_cpu(pmkids->length);
1784 count = le32_to_cpu(pmkids->bssid_info_count);
1785
1786 if (count > max_pmkids)
1787 count = max_pmkids;
1788
1789 /* update with new pmkid */
1790 for (i = 0; i < count; i++) {
1791 if (compare_ether_addr(pmkids->bssid_info[i].bssid,
1792 pmksa->bssid))
1793 continue;
1794
1795 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1796 WLAN_PMKID_LEN);
1797
1798 return pmkids;
1799 }
1800
1801 /* out of space, return error */
1802 if (i == max_pmkids) {
1803 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1804 err = -ENOSPC;
1805 goto error;
1806 }
1807
1808 /* add new pmkid */
1809 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1810
1811 pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1812 if (!pmkids) {
1813 err = -ENOMEM;
1814 goto error;
1815 }
1816
1817 pmkids->length = cpu_to_le32(newlen);
1818 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1819
1820 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1821 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1822
1823 return pmkids;
1824error:
1825 kfree(pmkids);
1826 return ERR_PTR(err);
1827}
1828
964c1d41
JL		 1829/*
1830 * cfg80211 ops
1831 */
e36d56b6
JB		 1832static int rndis_change_virtual_intf(struct wiphy *wiphy,
1833 struct net_device *dev,
964c1d41
JL		 1834 enum nl80211_iftype type, u32 *flags,
1835 struct vif_params *params)
1836{
16139172
JK		 1837 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1838 struct usbnet *usbdev = priv->usbdev;
964c1d41
JL		 1839 int mode;
1840
964c1d41
JL		 1841 switch (type) {
1842 case NL80211_IFTYPE_ADHOC:
aa18294a 1843 mode = NDIS_80211_INFRA_ADHOC;
964c1d41
JL		 1844 break;
1845 case NL80211_IFTYPE_STATION:
aa18294a 1846 mode = NDIS_80211_INFRA_INFRA;
964c1d41
JL		 1847 break;
1848 default:
1849 return -EINVAL;
1850 }
1851
16139172
JK		 1852 priv->wdev.iftype = type;
1853
964c1d41
JL		 1854 return set_infra_mode(usbdev, mode);
1855}
1856
d75ec2b7
JK		 1857static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1858{
1859 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1860 struct usbnet *usbdev = priv->usbdev;
1861 int err;
1862
1863 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1864 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1865 if (err < 0)
1866 return err;
1867 }
1868
1869 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1870 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1871 if (err < 0)
1872 return err;
1873 }
1874
1875 return 0;
1876}
1877
fa61cf70
JO		 1878static int rndis_set_tx_power(struct wiphy *wiphy,
1879 enum nl80211_tx_power_setting type,
1880 int mbm)
222ec50a
JK		 1881{
1882 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1883 struct usbnet *usbdev = priv->usbdev;
1884
fa61cf70
JO		 1885 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1886 __func__, type, mbm);
1887
1888 if (mbm < 0 || (mbm % 100))
1889 return -ENOTSUPP;
222ec50a
JK		 1890
1891 /* Device doesn't support changing txpower after initialization, only
1892 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1893 * currently used.
1894 */
fa61cf70
JO		 1895 if (type == NL80211_TX_POWER_AUTOMATIC ||
1896 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
222ec50a 1897 if (!priv->radio_on)
051ae0bf 1898 disassociate(usbdev, true); /* turn on radio */
222ec50a
JK		 1899
1900 return 0;
1901 }
1902
1903 return -ENOTSUPP;
1904}
1905
222ec50a
JK		 1906static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1907{
1908 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1909 struct usbnet *usbdev = priv->usbdev;
1910
1911 *dbm = get_bcm4320_power_dbm(priv);
1912
60b86755 1913 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
222ec50a
JK		 1914
1915 return 0;
1916}
1917
b1d25a67 1918#define SCAN_DELAY_JIFFIES (6 * HZ)
71a7b26d
JK		 1919static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1920 struct cfg80211_scan_request *request)
1921{
1922 struct usbnet *usbdev = netdev_priv(dev);
582241a0 1923 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
71a7b26d 1924 int ret;
5cb56af2 1925 int delay = SCAN_DELAY_JIFFIES;
71a7b26d 1926
60b86755 1927 netdev_dbg(usbdev->net, "cfg80211.scan\n");
71a7b26d 1928
db0dd396
JK		 1929 /* Get current bssid list from device before new scan, as new scan
1930 * clears internal bssid list.
1931 */
b5257c95 1932 rndis_check_bssid_list(usbdev, NULL, NULL);
db0dd396 1933
71a7b26d
JK		 1934 if (!request)
1935 return -EINVAL;
1936
1937 if (priv->scan_request && priv->scan_request != request)
1938 return -EBUSY;
1939
1940 priv->scan_request = request;
1941
5cb56af2 1942 ret = rndis_start_bssid_list_scan(usbdev);
71a7b26d 1943 if (ret == 0) {
5cb56af2
JK		 1944 if (priv->device_type == RNDIS_BCM4320A)
1945 delay = HZ;
1946
71a7b26d 1947 /* Wait before retrieving scan results from device */
5cb56af2 1948 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
71a7b26d
JK		 1949 }
1950
1951 return ret;
1952}
1953
71a7b26d
JK		 1954static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1955 struct ndis_80211_bssid_ex *bssid)
1956{
582241a0 1957 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
71a7b26d
JK		 1958 struct ieee80211_channel *channel;
1959 s32 signal;
1960 u64 timestamp;
1961 u16 capability;
1962 u16 beacon_interval;
1963 struct ndis_80211_fixed_ies *fixed;
1964 int ie_len, bssid_len;
1965 u8 *ie;
1966
60b86755
JP		 1967 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM]\n",
1968 bssid->ssid.essid, bssid->mac);
5fd8f250 1969
71a7b26d
JK		 1970 /* parse bssid structure */
1971 bssid_len = le32_to_cpu(bssid->length);
1972
1973 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1974 sizeof(struct ndis_80211_fixed_ies))
1975 return NULL;
1976
1977 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1978
1979 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1980 ie_len = min(bssid_len - (int)sizeof(*bssid),
1981 (int)le32_to_cpu(bssid->ie_length));
1982 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1983 if (ie_len < 0)
1984 return NULL;
1985
1986 /* extract data for cfg80211_inform_bss */
1987 channel = ieee80211_get_channel(priv->wdev.wiphy,
1988 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1989 if (!channel)
1990 return NULL;
1991
1992 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1993 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1994 capability = le16_to_cpu(fixed->capabilities);
1995 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1996
1997 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1998 timestamp, capability, beacon_interval, ie, ie_len, signal,
1999 GFP_KERNEL);
2000}
2001
b5257c95
JK		 2002static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2003 bool *matched)
71a7b26d
JK		 2004{
2005 void *buf = NULL;
2006 struct ndis_80211_bssid_list_ex *bssid_list;
2007 struct ndis_80211_bssid_ex *bssid;
2008 int ret = -EINVAL, len, count, bssid_len;
5fd8f250 2009 bool resized = false;
71a7b26d 2010
60b86755 2011 netdev_dbg(usbdev->net, "check_bssid_list\n");
71a7b26d
JK		 2012
2013 len = CONTROL_BUFFER_SIZE;
5fd8f250 2014resize_buf:
71a7b26d
JK		 2015 buf = kmalloc(len, GFP_KERNEL);
2016 if (!buf) {
2017 ret = -ENOMEM;
2018 goto out;
2019 }
2020
2021 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2022 if (ret != 0)
2023 goto out;
2024
5fd8f250
JK		 2025 if (!resized && len > CONTROL_BUFFER_SIZE) {
2026 resized = true;
2027 kfree(buf);
2028 goto resize_buf;
2029 }
2030
71a7b26d
JK		 2031 bssid_list = buf;
2032 bssid = bssid_list->bssid;
2033 bssid_len = le32_to_cpu(bssid->length);
2034 count = le32_to_cpu(bssid_list->num_items);
60b86755
JP		 2035 netdev_dbg(usbdev->net, "check_bssid_list: %d BSSIDs found (buflen: %d)\n",
2036 count, len);
71a7b26d
JK		 2037
2038 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
b5257c95
JK		 2039 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2040 matched) {
2041 if (compare_ether_addr(bssid->mac, match_bssid))
2042 *matched = true;
2043 }
71a7b26d
JK		 2044
2045 bssid = (void *)bssid + bssid_len;
2046 bssid_len = le32_to_cpu(bssid->length);
2047 count--;
2048 }
2049
2050out:
2051 kfree(buf);
2052 return ret;
2053}
2054
71a7b26d
JK		 2055static void rndis_get_scan_results(struct work_struct *work)
2056{
582241a0
JK		 2057 struct rndis_wlan_private *priv =
2058 container_of(work, struct rndis_wlan_private, scan_work.work);
71a7b26d
JK		 2059 struct usbnet *usbdev = priv->usbdev;
2060 int ret;
2061
60b86755 2062 netdev_dbg(usbdev->net, "get_scan_results\n");
71a7b26d 2063
005ba2f1
JK		 2064 if (!priv->scan_request)
2065 return;
2066
b5257c95 2067 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
71a7b26d
JK		 2068
2069 cfg80211_scan_done(priv->scan_request, ret < 0);
2070
2071 priv->scan_request = NULL;
2072}
2073
5c52323e
JK		 2074static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2075 struct cfg80211_connect_params *sme)
2076{
2077 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2078 struct usbnet *usbdev = priv->usbdev;
2079 struct ieee80211_channel *channel = sme->channel;
2080 struct ndis_80211_ssid ssid;
2081 int pairwise = RNDIS_WLAN_ALG_NONE;
2082 int groupwise = RNDIS_WLAN_ALG_NONE;
2083 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2084 int length, i, ret, chan = -1;
2085
2086 if (channel)
2087 chan = ieee80211_frequency_to_channel(channel->center_freq);
2088
2089 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2090 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2091 pairwise |=
2092 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2093
2094 if (sme->crypto.n_ciphers_pairwise > 0 &&
2095 pairwise == RNDIS_WLAN_ALG_NONE) {
60b86755 2096 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
5c52323e
JK		 2097 return -ENOTSUPP;
2098 }
2099
2100 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2101 keymgmt |=
2102 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2103
2104 if (sme->crypto.n_akm_suites > 0 &&
2105 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
60b86755 2106 netdev_err(usbdev->net, "Invalid keymgmt\n");
5c52323e
JK		 2107 return -ENOTSUPP;
2108 }
2109
60b86755
JP		 2110 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2111 sme->ssid, sme->bssid, chan,
2112 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2113 groupwise, pairwise, keymgmt);
5c52323e
JK		 2114
2115 if (is_associated(usbdev))
2116 disassociate(usbdev, false);
2117
2118 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2119 if (ret < 0) {
60b86755
JP		 2120 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2121 ret);
5c52323e
JK		 2122 goto err_turn_radio_on;
2123 }
2124
2125 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2126 keymgmt);
2127 if (ret < 0) {
60b86755
JP		 2128 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2129 ret);
5c52323e
JK		 2130 goto err_turn_radio_on;
2131 }
2132
2133 set_priv_filter(usbdev);
2134
2135 ret = set_encr_mode(usbdev, pairwise, groupwise);
2136 if (ret < 0) {
60b86755
JP		 2137 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2138 ret);
5c52323e
JK		 2139 goto err_turn_radio_on;
2140 }
2141
2142 if (channel) {
2143 ret = set_channel(usbdev, chan);
2144 if (ret < 0) {
60b86755
JP		 2145 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2146 ret);
5c52323e
JK		 2147 goto err_turn_radio_on;
2148 }
2149 }
2150
2151 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2152 priv->encr_tx_key_index = sme->key_idx;
2153 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2154 if (ret < 0) {
60b86755
JP		 2155 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2156 ret, sme->key_len, sme->key_idx);
5c52323e
JK		 2157 goto err_turn_radio_on;
2158 }
2159 }
2160
2161 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2162 !is_broadcast_ether_addr(sme->bssid)) {
2163 ret = set_bssid(usbdev, sme->bssid);
2164 if (ret < 0) {
60b86755
JP		 2165 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2166 ret);
5c52323e
JK		 2167 goto err_turn_radio_on;
2168 }
2169 } else
2170 clear_bssid(usbdev);
2171
2172 length = sme->ssid_len;
2173 if (length > NDIS_802_11_LENGTH_SSID)
2174 length = NDIS_802_11_LENGTH_SSID;
2175
2176 memset(&ssid, 0, sizeof(ssid));
2177 ssid.length = cpu_to_le32(length);
2178 memcpy(ssid.essid, sme->ssid, length);
2179
2180 /* Pause and purge rx queue, so we don't pass packets before
2181 * 'media connect'-indication.
2182 */
2183 usbnet_pause_rx(usbdev);
2184 usbnet_purge_paused_rxq(usbdev);
2185
2186 ret = set_essid(usbdev, &ssid);
2187 if (ret < 0)
60b86755 2188 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
5c52323e
JK		 2189 return ret;
2190
2191err_turn_radio_on:
051ae0bf 2192 disassociate(usbdev, true);
5c52323e
JK		 2193
2194 return ret;
2195}
2196
2197static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2198 u16 reason_code)
2199{
2200 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2201 struct usbnet *usbdev = priv->usbdev;
2202
60b86755 2203 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
5c52323e
JK		 2204
2205 priv->connected = false;
8b89a288 2206 memset(priv->bssid, 0, ETH_ALEN);
5c52323e
JK		 2207
2208 return deauthenticate(usbdev);
2209}
2210
2211static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2212 struct cfg80211_ibss_params *params)
2213{
2214 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2215 struct usbnet *usbdev = priv->usbdev;
2216 struct ieee80211_channel *channel = params->channel;
2217 struct ndis_80211_ssid ssid;
2218 enum nl80211_auth_type auth_type;
2219 int ret, alg, length, chan = -1;
2220
2221 if (channel)
2222 chan = ieee80211_frequency_to_channel(channel->center_freq);
2223
2224 /* TODO: How to handle ad-hoc encryption?
2225 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2226 * pre-shared for encryption (open/shared/wpa), is key set before
2227 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2228 */
2229 if (params->privacy) {
2230 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2231 alg = RNDIS_WLAN_ALG_WEP;
2232 } else {
2233 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2234 alg = RNDIS_WLAN_ALG_NONE;
2235 }
2236
60b86755
JP		 2237 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2238 params->ssid, params->bssid, chan, params->privacy);
5c52323e
JK		 2239
2240 if (is_associated(usbdev))
2241 disassociate(usbdev, false);
2242
2243 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2244 if (ret < 0) {
60b86755
JP		 2245 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2246 ret);
5c52323e
JK		 2247 goto err_turn_radio_on;
2248 }
2249
2250 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2251 if (ret < 0) {
60b86755
JP		 2252 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2253 ret);
5c52323e
JK		 2254 goto err_turn_radio_on;
2255 }
2256
2257 set_priv_filter(usbdev);
2258
2259 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2260 if (ret < 0) {
60b86755
JP		 2261 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2262 ret);
5c52323e
JK		 2263 goto err_turn_radio_on;
2264 }
2265
2266 if (channel) {
2267 ret = set_channel(usbdev, chan);
2268 if (ret < 0) {
60b86755
JP		 2269 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2270 ret);
5c52323e
JK		 2271 goto err_turn_radio_on;
2272 }
2273 }
2274
2275 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2276 !is_broadcast_ether_addr(params->bssid)) {
2277 ret = set_bssid(usbdev, params->bssid);
2278 if (ret < 0) {
60b86755
JP		 2279 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2280 ret);
5c52323e
JK		 2281 goto err_turn_radio_on;
2282 }
2283 } else
2284 clear_bssid(usbdev);
2285
2286 length = params->ssid_len;
2287 if (length > NDIS_802_11_LENGTH_SSID)
2288 length = NDIS_802_11_LENGTH_SSID;
2289
2290 memset(&ssid, 0, sizeof(ssid));
2291 ssid.length = cpu_to_le32(length);
2292 memcpy(ssid.essid, params->ssid, length);
2293
2294 /* Don't need to pause rx queue for ad-hoc. */
2295 usbnet_purge_paused_rxq(usbdev);
2296 usbnet_resume_rx(usbdev);
2297
2298 ret = set_essid(usbdev, &ssid);
2299 if (ret < 0)
60b86755
JP		 2300 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2301 ret);
5c52323e
JK		 2302 return ret;
2303
2304err_turn_radio_on:
051ae0bf 2305 disassociate(usbdev, true);
5c52323e
JK		 2306
2307 return ret;
2308}
2309
2310static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2311{
2312 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2313 struct usbnet *usbdev = priv->usbdev;
2314
60b86755 2315 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
5c52323e
JK		 2316
2317 priv->connected = false;
8b89a288 2318 memset(priv->bssid, 0, ETH_ALEN);
5c52323e
JK		 2319
2320 return deauthenticate(usbdev);
2321}
2322
f444de05 2323static int rndis_set_channel(struct wiphy *wiphy, struct net_device *netdev,
5554adbe
JK		 2324 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2325{
2326 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2327 struct usbnet *usbdev = priv->usbdev;
2328
2329 return set_channel(usbdev,
2330 ieee80211_frequency_to_channel(chan->center_freq));
2331}
71a7b26d 2332
84bf8400 2333static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
e31b8213
JB		 2334 u8 key_index, bool pairwise, const u8 *mac_addr,
2335 struct key_params *params)
84bf8400
JK		 2336{
2337 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2338 struct usbnet *usbdev = priv->usbdev;
53d27eaf 2339 __le32 flags;
84bf8400 2340
60b86755
JP		 2341 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2342 __func__, key_index, mac_addr, params->cipher);
84bf8400
JK		 2343
2344 switch (params->cipher) {
2345 case WLAN_CIPHER_SUITE_WEP40:
2346 case WLAN_CIPHER_SUITE_WEP104:
2347 return add_wep_key(usbdev, params->key, params->key_len,
2348 key_index);
2349 case WLAN_CIPHER_SUITE_TKIP:
2350 case WLAN_CIPHER_SUITE_CCMP:
2351 flags = 0;
2352
2353 if (params->seq && params->seq_len > 0)
2354 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2355 if (mac_addr)
2356 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2357 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2358
2359 return add_wpa_key(usbdev, params->key, params->key_len,
2360 key_index, mac_addr, params->seq,
2361 params->seq_len, params->cipher, flags);
2362 default:
60b86755
JP		 2363 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2364 __func__, params->cipher);
84bf8400
JK		 2365 return -ENOTSUPP;
2366 }
2367}
2368
2369static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
e31b8213 2370 u8 key_index, bool pairwise, const u8 *mac_addr)
84bf8400
JK		 2371{
2372 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2373 struct usbnet *usbdev = priv->usbdev;
2374
60b86755 2375 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
84bf8400
JK		 2376
2377 return remove_key(usbdev, key_index, mac_addr);
2378}
2379
2380static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2381 u8 key_index)
2382{
2383 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2384 struct usbnet *usbdev = priv->usbdev;
2385 struct rndis_wlan_encr_key key;
2386
60b86755 2387 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
84bf8400
JK		 2388
2389 priv->encr_tx_key_index = key_index;
2390
2391 key = priv->encr_keys[key_index];
2392
2393 return add_wep_key(usbdev, key.material, key.len, key_index);
2394}
2395
8b89a288
JK		 2396static void rndis_fill_station_info(struct usbnet *usbdev,
2397 struct station_info *sinfo)
2398{
2399 __le32 linkspeed, rssi;
2400 int ret, len;
2401
2402 memset(sinfo, 0, sizeof(*sinfo));
2403
2404 len = sizeof(linkspeed);
2405 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2406 if (ret == 0) {
2407 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2408 sinfo->filled |= STATION_INFO_TX_BITRATE;
2409 }
2410
2411 len = sizeof(rssi);
2412 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2413 if (ret == 0) {
2414 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2415 sinfo->filled |= STATION_INFO_SIGNAL;
2416 }
2417}
2418
2419static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2420 u8 *mac, struct station_info *sinfo)
2421{
2422 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2423 struct usbnet *usbdev = priv->usbdev;
2424
2425 if (compare_ether_addr(priv->bssid, mac))
2426 return -ENOENT;
2427
2428 rndis_fill_station_info(usbdev, sinfo);
2429
2430 return 0;
2431}
2432
d695df90
JK		 2433static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2434 int idx, u8 *mac, struct station_info *sinfo)
2435{
2436 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2437 struct usbnet *usbdev = priv->usbdev;
2438
2439 if (idx != 0)
2440 return -ENOENT;
2441
2442 memcpy(mac, priv->bssid, ETH_ALEN);
2443
2444 rndis_fill_station_info(usbdev, sinfo);
2445
2446 return 0;
2447}
2448
5a7d0583
JK		 2449static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2450 struct cfg80211_pmksa *pmksa)
2451{
2452 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2453 struct usbnet *usbdev = priv->usbdev;
2454 struct ndis_80211_pmkid *pmkids;
2455 u32 *tmp = (u32 *)pmksa->pmkid;
2456
2457 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2458 pmksa->bssid,
2459 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2460 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2461
2462 pmkids = get_device_pmkids(usbdev);
2463 if (IS_ERR(pmkids)) {
2464 /* couldn't read PMKID cache from device */
2465 return PTR_ERR(pmkids);
2466 }
2467
2468 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2469 if (IS_ERR(pmkids)) {
2470 /* not found, list full, etc */
2471 return PTR_ERR(pmkids);
2472 }
2473
2474 return set_device_pmkids(usbdev, pmkids);
2475}
2476
2477static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2478 struct cfg80211_pmksa *pmksa)
2479{
2480 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2481 struct usbnet *usbdev = priv->usbdev;
2482 struct ndis_80211_pmkid *pmkids;
2483 u32 *tmp = (u32 *)pmksa->pmkid;
2484
2485 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2486 pmksa->bssid,
2487 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2488 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2489
2490 pmkids = get_device_pmkids(usbdev);
2491 if (IS_ERR(pmkids)) {
2492 /* Couldn't read PMKID cache from device */
2493 return PTR_ERR(pmkids);
2494 }
2495
2496 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2497 if (IS_ERR(pmkids)) {
2498 /* not found, etc */
2499 return PTR_ERR(pmkids);
2500 }
2501
2502 return set_device_pmkids(usbdev, pmkids);
2503}
2504
2505static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2506{
2507 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2508 struct usbnet *usbdev = priv->usbdev;
2509 struct ndis_80211_pmkid pmkid;
2510
2511 netdev_dbg(usbdev->net, "%s()\n", __func__);
2512
2513 memset(&pmkid, 0, sizeof(pmkid));
2514
2515 pmkid.length = cpu_to_le32(sizeof(pmkid));
2516 pmkid.bssid_info_count = cpu_to_le32(0);
2517
2518 return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid));
2519}
2520
b5257c95
JK		 2521static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2522 struct ndis_80211_assoc_info *info)
2523{
2524 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2525 struct ieee80211_channel *channel;
2526 struct ndis_80211_conf config;
2527 struct ndis_80211_ssid ssid;
2528 s32 signal;
2529 u64 timestamp;
2530 u16 capability;
2531 u16 beacon_interval;
2532 __le32 rssi;
2533 u8 ie_buf[34];
2534 int len, ret, ie_len;
2535
2536 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2537 len = sizeof(rssi);
2538 rssi = 0;
458fafdd 2539 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
b5257c95
JK		 2540 signal = level_to_qual(le32_to_cpu(rssi));
2541
2542 netdev_dbg(usbdev->net, "%s(): OID_802_11_RSSI -> %d, "
2543 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2544 level_to_qual(le32_to_cpu(rssi)));
2545
2546 /* Get AP capabilities */
2547 if (info) {
2548 capability = le16_to_cpu(info->resp_ie.capa);
2549 } else {
2550 /* Set atleast ESS/IBSS capability */
2551 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2552 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2553 }
2554
2555 /* Get channel and beacon interval */
2556 len = sizeof(config);
2557 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2558 netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n",
2559 __func__, ret);
2560 if (ret >= 0) {
2561 beacon_interval = le16_to_cpu(config.beacon_period);
2562 channel = ieee80211_get_channel(priv->wdev.wiphy,
2563 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
2564 if (!channel) {
2565 netdev_warn(usbdev->net, "%s(): could not get channel."
2566 "\n", __func__);
2567 return;
2568 }
2569 } else {
2570 netdev_warn(usbdev->net, "%s(): could not get configuration.\n",
2571 __func__);
2572 return;
2573 }
2574
2575 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2576 len = sizeof(ssid);
2577 memset(&ssid, 0, sizeof(ssid));
2578 ret = rndis_query_oid(usbdev, OID_802_11_SSID, &ssid, &len);
2579 netdev_dbg(usbdev->net, "%s(): OID_802_11_SSID -> %d, len: %d, ssid: "
2580 "'%.32s'\n", __func__, ret,
2581 le32_to_cpu(ssid.length), ssid.essid);
2582
2583 if (le32_to_cpu(ssid.length) > 32)
2584 ssid.length = cpu_to_le32(32);
2585
2586 ie_buf[0] = WLAN_EID_SSID;
2587 ie_buf[1] = le32_to_cpu(ssid.length);
2588 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2589
2590 ie_len = le32_to_cpu(ssid.length) + 2;
2591
2592 /* no tsf */
2593 timestamp = 0;
2594
2595 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2596 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2597 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2598 bssid, (u32)timestamp, capability, beacon_interval, ie_len,
2599 ssid.essid, signal);
2600
2601 cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2602 timestamp, capability, beacon_interval, ie_buf, ie_len,
2603 signal, GFP_KERNEL);
2604}
2605
c5c4fe90
JK		 2606/*
2607 * workers, indication handlers, device poller
2608 */
0848e6c6 2609static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
bf164cc0 2610{
5c52323e 2611 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3d1ca47e 2612 struct ndis_80211_assoc_info *info = NULL;
0848e6c6 2613 u8 bssid[ETH_ALEN];
5c52323e
JK		 2614 int resp_ie_len, req_ie_len;
2615 u8 *req_ie, *resp_ie;
4364623c 2616 int ret, offset;
5c52323e 2617 bool roamed = false;
b5257c95 2618 bool match_bss;
bf164cc0 2619
5c52323e
JK		 2620 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2621 /* received media connect indication while connected, either
2622 * device reassociated with same AP or roamed to new. */
2623 roamed = true;
2624 }
0848e6c6 2625
5c52323e
JK		 2626 req_ie_len = 0;
2627 resp_ie_len = 0;
2628 req_ie = NULL;
2629 resp_ie = NULL;
2630
2631 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
3d1ca47e
JK		 2632 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2633 if (!info) {
2634 /* No memory? Try resume work later */
2635 set_bit(WORK_LINK_UP, &priv->work_pending);
2636 queue_work(priv->workqueue, &priv->work);
2637 return;
2638 }
5c52323e 2639
3d1ca47e
JK		 2640 /* Get association info IEs from device. */
2641 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
5c52323e
JK		 2642 if (!ret) {
2643 req_ie_len = le32_to_cpu(info->req_ie_length);
2644 if (req_ie_len > 0) {
2645 offset = le32_to_cpu(info->offset_req_ies);
3d1ca47e
JK		 2646
2647 if (offset > CONTROL_BUFFER_SIZE)
2648 offset = CONTROL_BUFFER_SIZE;
2649
5c52323e 2650 req_ie = (u8 *)info + offset;
3d1ca47e
JK		 2651
2652 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2653 req_ie_len =
2654 CONTROL_BUFFER_SIZE - offset;
5c52323e
JK		 2655 }
2656
2657 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2658 if (resp_ie_len > 0) {
2659 offset = le32_to_cpu(info->offset_resp_ies);
3d1ca47e
JK		 2660
2661 if (offset > CONTROL_BUFFER_SIZE)
2662 offset = CONTROL_BUFFER_SIZE;
2663
5c52323e 2664 resp_ie = (u8 *)info + offset;
3d1ca47e
JK		 2665
2666 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2667 resp_ie_len =
2668 CONTROL_BUFFER_SIZE - offset;
5c52323e 2669 }
b5257c95
JK		 2670 } else {
2671 /* Since rndis_wlan_craft_connected_bss() might use info
2672 * later and expects info to contain valid data if
2673 * non-null, free info and set NULL here.
2674 */
2675 kfree(info);
2676 info = NULL;
4364623c 2677 }
5c52323e
JK		 2678 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2679 return;
4364623c 2680
5c52323e
JK		 2681 ret = get_bssid(usbdev, bssid);
2682 if (ret < 0)
2683 memset(bssid, 0, sizeof(bssid));
7834ddbc 2684
60b86755
JP		 2685 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2686 bssid, roamed ? " roamed" : "");
bf164cc0 2687
b5257c95 2688 /* Internal bss list in device should contain at least the currently
5c52323e
JK		 2689 * connected bss and we can get it to cfg80211 with
2690 * rndis_check_bssid_list().
b5257c95
JK		 2691 *
2692 * NDIS spec says: "If the device is associated, but the associated
2693 * BSSID is not in its BSSID scan list, then the driver must add an
2694 * entry for the BSSID at the end of the data that it returns in
2695 * response to query of OID_802_11_BSSID_LIST."
2696 *
2697 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
5c52323e 2698 */
b5257c95
JK		 2699 match_bss = false;
2700 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2701
2702 if (!is_zero_ether_addr(bssid) && !match_bss) {
2703 /* Couldn't get bss from device, we need to manually craft bss
2704 * for cfg80211.
2705 */
2706 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2707 }
5c52323e
JK		 2708
2709 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2710 if (!roamed)
2711 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2712 req_ie_len, resp_ie,
2713 resp_ie_len, 0, GFP_KERNEL);
2714 else
2715 cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len,
2716 resp_ie, resp_ie_len, GFP_KERNEL);
2717 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2718 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2719
3d1ca47e
JK		 2720 if (info != NULL)
2721 kfree(info);
2722
5c52323e 2723 priv->connected = true;
8b89a288 2724 memcpy(priv->bssid, bssid, ETH_ALEN);
6010ce07 2725
0848e6c6 2726 usbnet_resume_rx(usbdev);
5c52323e 2727 netif_carrier_on(usbdev->net);
0848e6c6
JK		 2728}
2729
2730static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2731{
b6411fc2 2732 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
0848e6c6 2733
b6411fc2
JK		 2734 if (priv->connected) {
2735 priv->connected = false;
2736 memset(priv->bssid, 0, ETH_ALEN);
2737
2738 deauthenticate(usbdev);
0848e6c6 2739
b6411fc2
JK		 2740 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2741 }
2742
2743 netif_carrier_off(usbdev->net);
0848e6c6
JK		 2744}
2745
2746static void rndis_wlan_worker(struct work_struct *work)
2747{
2748 struct rndis_wlan_private *priv =
2749 container_of(work, struct rndis_wlan_private, work);
2750 struct usbnet *usbdev = priv->usbdev;
2751
2752 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2753 rndis_wlan_do_link_up_work(usbdev);
2754
2755 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2756 rndis_wlan_do_link_down_work(usbdev);
2757
bf164cc0
JK		 2758 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2759 set_multicast_list(usbdev);
2760}
2761
582241a0 2762static void rndis_wlan_set_multicast_list(struct net_device *dev)
bf164cc0 2763{
524ad0a7 2764 struct usbnet *usbdev = netdev_priv(dev);
582241a0 2765 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 2766
a67edb9e
JK		 2767 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2768 return;
2769
bf164cc0
JK		 2770 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2771 queue_work(priv->workqueue, &priv->work);
2772}
2773
030645ac
JK		 2774static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2775 struct ndis_80211_status_indication *indication,
2776 int len)
2777{
2778 u8 *buf;
2779 const char *type;
a0f9ce2a 2780 int flags, buflen, key_id;
030645ac
JK		 2781 bool pairwise_error, group_error;
2782 struct ndis_80211_auth_request *auth_req;
a0f9ce2a 2783 enum nl80211_key_type key_type;
030645ac
JK		 2784
2785 /* must have at least one array entry */
2786 if (len < offsetof(struct ndis_80211_status_indication, u) +
2787 sizeof(struct ndis_80211_auth_request)) {
60b86755
JP		 2788 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2789 len);
030645ac
JK		 2790 return;
2791 }
2792
2793 buf = (void *)&indication->u.auth_request[0];
2794 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2795
2796 while (buflen >= sizeof(*auth_req)) {
2797 auth_req = (void *)buf;
2798 type = "unknown";
2799 flags = le32_to_cpu(auth_req->flags);
2800 pairwise_error = false;
2801 group_error = false;
2802
2803 if (flags & 0x1)
2804 type = "reauth request";
2805 if (flags & 0x2)
2806 type = "key update request";
2807 if (flags & 0x6) {
2808 pairwise_error = true;
2809 type = "pairwise_error";
2810 }
2811 if (flags & 0xe) {
2812 group_error = true;
2813 type = "group_error";
2814 }
2815
60b86755
JP		 2816 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2817 type, le32_to_cpu(auth_req->flags));
030645ac 2818
a0f9ce2a
JK		 2819 if (pairwise_error) {
2820 key_type = NL80211_KEYTYPE_PAIRWISE;
2821 key_id = -1;
030645ac 2822
a0f9ce2a
JK		 2823 cfg80211_michael_mic_failure(usbdev->net,
2824 auth_req->bssid,
2825 key_type, key_id, NULL,
2826 GFP_KERNEL);
2827 }
030645ac 2828
a0f9ce2a
JK		 2829 if (group_error) {
2830 key_type = NL80211_KEYTYPE_GROUP;
2831 key_id = -1;
030645ac 2832
a0f9ce2a
JK		 2833 cfg80211_michael_mic_failure(usbdev->net,
2834 auth_req->bssid,
2835 key_type, key_id, NULL,
2836 GFP_KERNEL);
030645ac
JK		 2837 }
2838
2839 buflen -= le32_to_cpu(auth_req->length);
2840 buf += le32_to_cpu(auth_req->length);
2841 }
2842}
2843
2844static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2845 struct ndis_80211_status_indication *indication,
2846 int len)
2847{
2848 struct ndis_80211_pmkid_cand_list *cand_list;
2849 int list_len, expected_len, i;
2850
2851 if (len < offsetof(struct ndis_80211_status_indication, u) +
2852 sizeof(struct ndis_80211_pmkid_cand_list)) {
60b86755
JP		 2853 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2854 len);
030645ac
JK		 2855 return;
2856 }
2857
2858 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2859 sizeof(struct ndis_80211_pmkid_candidate);
2860 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2861 offsetof(struct ndis_80211_status_indication, u);
2862
2863 if (len < expected_len) {
60b86755
JP		 2864 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2865 len, expected_len);
030645ac
JK		 2866 return;
2867 }
2868
2869 cand_list = &indication->u.cand_list;
2870
60b86755
JP		 2871 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2872 le32_to_cpu(cand_list->version),
2873 le32_to_cpu(cand_list->num_candidates));
030645ac
JK		 2874
2875 if (le32_to_cpu(cand_list->version) != 1)
2876 return;
2877
2878 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
030645ac
JK		 2879 struct ndis_80211_pmkid_candidate *cand =
2880 &cand_list->candidate_list[i];
2881
60b86755
JP		 2882 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, bssid: %pM\n",
2883 i, le32_to_cpu(cand->flags), cand->bssid);
030645ac 2884
21ec2d8d
JK		 2885#if 0
2886 struct iw_pmkid_cand pcand;
2887 union iwreq_data wrqu;
2888
030645ac
JK		 2889 memset(&pcand, 0, sizeof(pcand));
2890 if (le32_to_cpu(cand->flags) & 0x01)
2891 pcand.flags |= IW_PMKID_CAND_PREAUTH;
2892 pcand.index = i;
2893 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2894
2895 memset(&wrqu, 0, sizeof(wrqu));
2896 wrqu.data.length = sizeof(pcand);
2897 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2898 (u8 *)&pcand);
21ec2d8d 2899#endif
030645ac
JK		 2900 }
2901}
2902
2903static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2904 struct rndis_indicate *msg, int buflen)
2905{
2906 struct ndis_80211_status_indication *indication;
2907 int len, offset;
2908
2909 offset = offsetof(struct rndis_indicate, status) +
2910 le32_to_cpu(msg->offset);
2911 len = le32_to_cpu(msg->length);
2912
2913 if (len < 8) {
60b86755
JP		 2914 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
2915 len);
030645ac
JK		 2916 return;
2917 }
2918
2919 if (offset + len > buflen) {
60b86755
JP		 2920 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
2921 offset + len, buflen);
030645ac
JK		 2922 return;
2923 }
2924
2925 indication = (void *)((u8 *)msg + offset);
2926
2927 switch (le32_to_cpu(indication->status_type)) {
2928 case NDIS_80211_STATUSTYPE_RADIOSTATE:
60b86755
JP		 2929 netdev_info(usbdev->net, "radio state indication: %i\n",
2930 le32_to_cpu(indication->u.radio_status));
030645ac
JK		 2931 return;
2932
2933 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
60b86755
JP		 2934 netdev_info(usbdev->net, "media stream mode indication: %i\n",
2935 le32_to_cpu(indication->u.media_stream_mode));
030645ac
JK		 2936 return;
2937
2938 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2939 rndis_wlan_auth_indication(usbdev, indication, len);
2940 return;
2941
2942 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2943 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2944 return;
2945
2946 default:
60b86755
JP		 2947 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
2948 le32_to_cpu(indication->status_type));
030645ac
JK		 2949 }
2950}
2951
2a4901bc 2952static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
bf164cc0 2953{
582241a0 2954 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2a4901bc 2955 struct rndis_indicate *msg = ind;
bf164cc0 2956
2a4901bc
JK		 2957 switch (msg->status) {
2958 case RNDIS_STATUS_MEDIA_CONNECT:
5f81ff5a
JK		 2959 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2960 /* OID_802_11_ADD_KEY causes sometimes extra
2961 * "media connect" indications which confuses driver
2962 * and userspace to think that device is
2963 * roaming/reassociating when it isn't.
2964 */
60b86755 2965 netdev_dbg(usbdev->net, "ignored OID_802_11_ADD_KEY triggered 'media connect'\n");
5f81ff5a
JK		 2966 return;
2967 }
2968
7834ddbc
JK		 2969 usbnet_pause_rx(usbdev);
2970
60b86755 2971 netdev_info(usbdev->net, "media connect\n");
2a4901bc 2972
030645ac 2973 /* queue work to avoid recursive calls into rndis_command */
2a4901bc
JK		 2974 set_bit(WORK_LINK_UP, &priv->work_pending);
2975 queue_work(priv->workqueue, &priv->work);
2976 break;
2977
2978 case RNDIS_STATUS_MEDIA_DISCONNECT:
60b86755 2979 netdev_info(usbdev->net, "media disconnect\n");
2a4901bc 2980
030645ac 2981 /* queue work to avoid recursive calls into rndis_command */
2a4901bc
JK		 2982 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2983 queue_work(priv->workqueue, &priv->work);
2984 break;
2985
030645ac
JK		 2986 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2987 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2988 break;
2989
2a4901bc 2990 default:
60b86755
JP		 2991 netdev_info(usbdev->net, "indication: 0x%08x\n",
2992 le32_to_cpu(msg->status));
2a4901bc
JK		 2993 break;
2994 }
bf164cc0
JK		 2995}
2996
0308383f 2997static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
bf164cc0
JK		 2998{
2999 struct {
3000 __le32 num_items;
3001 __le32 items[8];
3002 } networks_supported;
0308383f
JK		 3003 struct ndis_80211_capability *caps;
3004 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
bf164cc0 3005 int len, retval, i, n;
582241a0 3006 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 3007
bf164cc0
JK		 3008 /* determine supported modes */
3009 len = sizeof(networks_supported);
a19d7292 3010 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
bf164cc0
JK		 3011 &networks_supported, &len);
3012 if (retval >= 0) {
3013 n = le32_to_cpu(networks_supported.num_items);
3014 if (n > 8)
3015 n = 8;
3016 for (i = 0; i < n; i++) {
3017 switch (le32_to_cpu(networks_supported.items[i])) {
aa18294a
JK		 3018 case NDIS_80211_TYPE_FREQ_HOP:
3019 case NDIS_80211_TYPE_DIRECT_SEQ:
bf164cc0
JK		 3020 priv->caps |= CAP_MODE_80211B;
3021 break;
aa18294a 3022 case NDIS_80211_TYPE_OFDM_A:
bf164cc0
JK		 3023 priv->caps |= CAP_MODE_80211A;
3024 break;
aa18294a 3025 case NDIS_80211_TYPE_OFDM_G:
bf164cc0
JK		 3026 priv->caps |= CAP_MODE_80211G;
3027 break;
3028 }
3029 }
bf164cc0
JK		 3030 }
3031
0308383f
JK		 3032 /* get device 802.11 capabilities, number of PMKIDs */
3033 caps = (struct ndis_80211_capability *)caps_buf;
3034 len = sizeof(caps_buf);
3035 retval = rndis_query_oid(usbdev, OID_802_11_CAPABILITY, caps, &len);
3036 if (retval >= 0) {
3037 netdev_dbg(usbdev->net, "OID_802_11_CAPABILITY -> len %d, "
3038 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3039 le32_to_cpu(caps->length),
3040 le32_to_cpu(caps->version),
3041 le32_to_cpu(caps->num_pmkids),
3042 le32_to_cpu(caps->num_auth_encr_pair));
3043 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3044 } else
3045 wiphy->max_num_pmkids = 0;
3046
bf164cc0
JK		 3047 return retval;
3048}
3049
305e243e
JK		 3050#define DEVICE_POLLER_JIFFIES (HZ)
3051static void rndis_device_poller(struct work_struct *work)
bf164cc0 3052{
582241a0 3053 struct rndis_wlan_private *priv =
305e243e
JK		 3054 container_of(work, struct rndis_wlan_private,
3055 dev_poller_work.work);
bf164cc0 3056 struct usbnet *usbdev = priv->usbdev;
bf164cc0 3057 __le32 rssi, tmp;
a97b1f3d 3058 int len, ret, j;
305e243e 3059 int update_jiffies = DEVICE_POLLER_JIFFIES;
bf164cc0
JK		 3060 void *buf;
3061
8b89a288
JK		 3062 /* Only check/do workaround when connected. Calling is_associated()
3063 * also polls device with rndis_command() and catches for media link
3064 * indications.
3065 */
5cb56af2
JK		 3066 if (!is_associated(usbdev)) {
3067 /* Workaround bad scanning in BCM4320a devices with active
3068 * background scanning when not associated.
3069 */
3070 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3071 !priv->scan_request) {
3072 /* Get previous scan results */
3073 rndis_check_bssid_list(usbdev, NULL, NULL);
3074
3075 /* Initiate new scan */
3076 rndis_start_bssid_list_scan(usbdev);
3077 }
3078
bf164cc0 3079 goto end;
5cb56af2 3080 }
bf164cc0
JK		 3081
3082 len = sizeof(rssi);
3083 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
8b89a288
JK		 3084 if (ret == 0)
3085 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
bf164cc0 3086
60b86755
JP		 3087 netdev_dbg(usbdev->net, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3088 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
bf164cc0 3089
a97b1f3d
JK		 3090 /* Workaround transfer stalls on poor quality links.
3091 * TODO: find right way to fix these stalls (as stalls do not happen
3092 * with ndiswrapper/windows driver). */
77593ae2 3093 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
bf164cc0
JK		 3094 /* Decrease stats worker interval to catch stalls.
3095 * faster. Faster than 400-500ms causes packet loss,
3096 * Slower doesn't catch stalls fast enough.
3097 */
3098 j = msecs_to_jiffies(priv->param_workaround_interval);
305e243e
JK		 3099 if (j > DEVICE_POLLER_JIFFIES)
3100 j = DEVICE_POLLER_JIFFIES;
bf164cc0
JK		 3101 else if (j <= 0)
3102 j = 1;
3103 update_jiffies = j;
3104
3105 /* Send scan OID. Use of both OIDs is required to get device
3106 * working.
3107 */
35c26c2c 3108 tmp = cpu_to_le32(1);
bf164cc0
JK		 3109 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
3110 sizeof(tmp));
3111
3112 len = CONTROL_BUFFER_SIZE;
3113 buf = kmalloc(len, GFP_KERNEL);
3114 if (!buf)
3115 goto end;
3116
3117 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
3118 kfree(buf);
3119 }
bf164cc0 3120
305e243e 3121end:
bf164cc0
JK		 3122 if (update_jiffies >= HZ)
3123 update_jiffies = round_jiffies_relative(update_jiffies);
3124 else {
3125 j = round_jiffies_relative(update_jiffies);
3126 if (abs(j - update_jiffies) <= 10)
3127 update_jiffies = j;
3128 }
3129
305e243e
JK		 3130 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3131 update_jiffies);
bf164cc0
JK		 3132}
3133
c5c4fe90
JK		 3134/*
3135 * driver/device initialization
3136 */
5cb56af2 3137static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
bf164cc0 3138{
582241a0 3139 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 3140
5cb56af2
JK		 3141 priv->device_type = device_type;
3142
bf164cc0
JK		 3143 priv->param_country[0] = modparam_country[0];
3144 priv->param_country[1] = modparam_country[1];
3145 priv->param_country[2] = 0;
3146 priv->param_frameburst = modparam_frameburst;
3147 priv->param_afterburner = modparam_afterburner;
3148 priv->param_power_save = modparam_power_save;
3149 priv->param_power_output = modparam_power_output;
3150 priv->param_roamtrigger = modparam_roamtrigger;
3151 priv->param_roamdelta = modparam_roamdelta;
bf164cc0
JK		 3152
3153 priv->param_country[0] = toupper(priv->param_country[0]);
3154 priv->param_country[1] = toupper(priv->param_country[1]);
3155 /* doesn't support EU as country code, use FI instead */
3156 if (!strcmp(priv->param_country, "EU"))
3157 strcpy(priv->param_country, "FI");
3158
3159 if (priv->param_power_save < 0)
3160 priv->param_power_save = 0;
3161 else if (priv->param_power_save > 2)
3162 priv->param_power_save = 2;
3163
a7624837
JK		 3164 if (priv->param_power_output < 0)
3165 priv->param_power_output = 0;
3166 else if (priv->param_power_output > 3)
3167 priv->param_power_output = 3;
3168
bf164cc0
JK		 3169 if (priv->param_roamtrigger < -80)
3170 priv->param_roamtrigger = -80;
3171 else if (priv->param_roamtrigger > -60)
3172 priv->param_roamtrigger = -60;
3173
3174 if (priv->param_roamdelta < 0)
3175 priv->param_roamdelta = 0;
3176 else if (priv->param_roamdelta > 2)
3177 priv->param_roamdelta = 2;
3178
4d381ffb 3179 if (modparam_workaround_interval < 0)
bf164cc0 3180 priv->param_workaround_interval = 500;
4d381ffb
RK		 3181 else
3182 priv->param_workaround_interval = modparam_workaround_interval;
cef6e912
JK		 3183}
3184
5cb56af2
JK		 3185static int unknown_early_init(struct usbnet *usbdev)
3186{
3187 /* copy module parameters for unknown so that iwconfig reports txpower
3188 * and workaround parameter is copied to private structure correctly.
3189 */
3190 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3191
3192 /* This is unknown device, so do not try set configuration parameters.
3193 */
3194
3195 return 0;
3196}
3197
cef6e912
JK		 3198static int bcm4320a_early_init(struct usbnet *usbdev)
3199{
6e850af5
JK		 3200 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3201 * and workaround parameter is copied to private structure correctly.
3202 */
5cb56af2 3203 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
6e850af5 3204
cef6e912
JK		 3205 /* bcm4320a doesn't handle configuration parameters well. Try
3206 * set any and you get partially zeroed mac and broken device.
3207 */
3208
3209 return 0;
3210}
3211
3212static int bcm4320b_early_init(struct usbnet *usbdev)
3213{
3214 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3215 char buf[8];
3216
5cb56af2 3217 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
cef6e912
JK		 3218
3219 /* Early initialization settings, setting these won't have effect
3220 * if called after generic_rndis_bind().
3221 */
bf164cc0 3222
a19d7292
JK		 3223 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3224 rndis_set_config_parameter_str(usbdev, "FrameBursting",
bf164cc0 3225 priv->param_frameburst ? "1" : "0");
a19d7292 3226 rndis_set_config_parameter_str(usbdev, "Afterburner",
bf164cc0
JK		 3227 priv->param_afterburner ? "1" : "0");
3228 sprintf(buf, "%d", priv->param_power_save);
a19d7292 3229 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
bf164cc0 3230 sprintf(buf, "%d", priv->param_power_output);
a19d7292 3231 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
bf164cc0 3232 sprintf(buf, "%d", priv->param_roamtrigger);
a19d7292 3233 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
bf164cc0 3234 sprintf(buf, "%d", priv->param_roamdelta);
a19d7292 3235 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
bf164cc0
JK		 3236
3237 return 0;
3238}
3239
23d12e2b 3240/* same as rndis_netdev_ops but with local multicast handler */
582241a0 3241static const struct net_device_ops rndis_wlan_netdev_ops = {
23d12e2b
DM		 3242 .ndo_open = usbnet_open,
3243 .ndo_stop = usbnet_stop,
3244 .ndo_start_xmit = usbnet_start_xmit,
3245 .ndo_tx_timeout = usbnet_tx_timeout,
3246 .ndo_set_mac_address = eth_mac_addr,
3247 .ndo_validate_addr = eth_validate_addr,
582241a0 3248 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
23d12e2b
DM		 3249};
3250
582241a0 3251static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
bf164cc0 3252{
5c8fa4f7 3253 struct wiphy *wiphy;
582241a0 3254 struct rndis_wlan_private *priv;
bf164cc0
JK		 3255 int retval, len;
3256 __le32 tmp;
3257
5c8fa4f7
JL		 3258 /* allocate wiphy and rndis private data
3259 * NOTE: We only support a single virtual interface, so wiphy
3260 * and wireless_dev are somewhat synonymous for this device.
3261 */
582241a0 3262 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
5c8fa4f7 3263 if (!wiphy)
bf164cc0
JK		 3264 return -ENOMEM;
3265
5c8fa4f7
JL		 3266 priv = wiphy_priv(wiphy);
3267 usbdev->net->ieee80211_ptr = &priv->wdev;
3268 priv->wdev.wiphy = wiphy;
3269 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3270
bf164cc0 3271 /* These have to be initialized before calling generic_rndis_bind().
582241a0 3272 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
bf164cc0 3273 */
a19d7292 3274 usbdev->driver_priv = priv;
a19d7292 3275 priv->usbdev = usbdev;
bf164cc0
JK		 3276
3277 mutex_init(&priv->command_lock);
bf164cc0 3278
8d4d99ae
JK		 3279 /* because rndis_command() sleeps we need to use workqueue */
3280 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
582241a0 3281 INIT_WORK(&priv->work, rndis_wlan_worker);
305e243e 3282 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
8d4d99ae
JK		 3283 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3284
bf164cc0 3285 /* try bind rndis_host */
a19d7292 3286 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
bf164cc0
JK		 3287 if (retval < 0)
3288 goto fail;
3289
3290 /* generic_rndis_bind set packet filter to multicast_all+
3291 * promisc mode which doesn't work well for our devices (device
3292 * picks up rssi to closest station instead of to access point).
3293 *
3294 * rndis_host wants to avoid all OID as much as possible
582241a0 3295 * so do promisc/multicast handling in rndis_wlan.
bf164cc0 3296 */
582241a0 3297 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
23d12e2b 3298
bf164cc0 3299 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
a19d7292 3300 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
bf164cc0
JK		 3301 sizeof(tmp));
3302
3303 len = sizeof(tmp);
a19d7292
JK		 3304 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
3305 &len);
bf164cc0
JK		 3306 priv->multicast_size = le32_to_cpu(tmp);
3307 if (retval < 0 || priv->multicast_size < 0)
3308 priv->multicast_size = 0;
3309 if (priv->multicast_size > 0)
a19d7292 3310 usbdev->net->flags |= IFF_MULTICAST;
bf164cc0 3311 else
a19d7292 3312 usbdev->net->flags &= ~IFF_MULTICAST;
bf164cc0 3313
5c8fa4f7
JL		 3314 /* fill-out wiphy structure and register w/ cfg80211 */
3315 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3316 wiphy->privid = rndis_wiphy_privid;
3317 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3318 | BIT(NL80211_IFTYPE_ADHOC);
3319 wiphy->max_scan_ssids = 1;
3320
4a7f13ee 3321 /* TODO: fill-out band/encr information based on priv->caps */
0308383f 3322 rndis_wlan_get_caps(usbdev, wiphy);
5c8fa4f7
JL		 3323
3324 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3325 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3326 priv->band.channels = priv->channels;
3327 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3328 priv->band.bitrates = priv->rates;
3329 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3330 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
4d2a369e 3331 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
5c8fa4f7 3332
4a7f13ee
JK		 3333 memcpy(priv->cipher_suites, rndis_cipher_suites,
3334 sizeof(rndis_cipher_suites));
3335 wiphy->cipher_suites = priv->cipher_suites;
3336 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3337
5c8fa4f7
JL		 3338 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3339
3340 if (wiphy_register(wiphy)) {
eb1a685e
JK		 3341 retval = -ENODEV;
3342 goto fail;
5c8fa4f7
JL		 3343 }
3344
a19d7292 3345 set_default_iw_params(usbdev);
bf164cc0 3346
d75ec2b7
JK		 3347 /* set default rts/frag */
3348 rndis_set_wiphy_params(wiphy,
3349 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3350
bf164cc0 3351 /* turn radio on */
051ae0bf
JK		 3352 priv->radio_on = true;
3353 disassociate(usbdev, true);
a19d7292 3354 netif_carrier_off(usbdev->net);
bf164cc0 3355
bf164cc0
JK		 3356 return 0;
3357
3358fail:
305e243e 3359 cancel_delayed_work_sync(&priv->dev_poller_work);
8d4d99ae
JK		 3360 cancel_delayed_work_sync(&priv->scan_work);
3361 cancel_work_sync(&priv->work);
3362 flush_workqueue(priv->workqueue);
3363 destroy_workqueue(priv->workqueue);
3364
eb1a685e 3365 wiphy_free(wiphy);
bf164cc0
JK		 3366 return retval;
3367}
3368
582241a0 3369static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
bf164cc0 3370{
582241a0 3371 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 3372
3373 /* turn radio off */
051ae0bf 3374 disassociate(usbdev, false);
bf164cc0 3375
305e243e 3376 cancel_delayed_work_sync(&priv->dev_poller_work);
71a7b26d 3377 cancel_delayed_work_sync(&priv->scan_work);
bf164cc0
JK		 3378 cancel_work_sync(&priv->work);
3379 flush_workqueue(priv->workqueue);
3380 destroy_workqueue(priv->workqueue);
3381
a19d7292 3382 rndis_unbind(usbdev, intf);
5c8fa4f7
JL		 3383
3384 wiphy_unregister(priv->wdev.wiphy);
3385 wiphy_free(priv->wdev.wiphy);
bf164cc0
JK		 3386}
3387
582241a0 3388static int rndis_wlan_reset(struct usbnet *usbdev)
bf164cc0 3389{
110736de 3390 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
7eaab708 3391 int retval;
110736de 3392
60b86755 3393 netdev_dbg(usbdev->net, "%s()\n", __func__);
110736de 3394
7eaab708
JK		 3395 retval = rndis_reset(usbdev);
3396 if (retval)
60b86755 3397 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
7eaab708 3398
e5a11a82
JK		 3399 /* rndis_reset cleared multicast list, so restore here.
3400 (set_multicast_list() also turns on current packet filter) */
7eaab708
JK		 3401 set_multicast_list(usbdev);
3402
305e243e
JK		 3403 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3404 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
110736de 3405
a19d7292 3406 return deauthenticate(usbdev);
bf164cc0
JK		 3407}
3408
222ec50a
JK		 3409static int rndis_wlan_stop(struct usbnet *usbdev)
3410{
110736de
JK		 3411 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3412 int retval;
e5a11a82 3413 __le32 filter;
110736de 3414
60b86755 3415 netdev_dbg(usbdev->net, "%s()\n", __func__);
110736de 3416
051ae0bf 3417 retval = disassociate(usbdev, false);
110736de
JK		 3418
3419 priv->work_pending = 0;
305e243e 3420 cancel_delayed_work_sync(&priv->dev_poller_work);
110736de
JK		 3421 cancel_delayed_work_sync(&priv->scan_work);
3422 cancel_work_sync(&priv->work);
3423 flush_workqueue(priv->workqueue);
3424
005ba2f1
JK		 3425 if (priv->scan_request) {
3426 cfg80211_scan_done(priv->scan_request, true);
3427 priv->scan_request = NULL;
3428 }
3429
e5a11a82
JK		 3430 /* Set current packet filter zero to block receiving data packets from
3431 device. */
3432 filter = 0;
3433 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3434 sizeof(filter));
3435
110736de 3436 return retval;
222ec50a
JK		 3437}
3438
bf164cc0
JK		 3439static const struct driver_info bcm4320b_info = {
3440 .description = "Wireless RNDIS device, BCM4320b based",
1487cd5e
JK		 3441 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3442 FLAG_AVOID_UNLINK_URBS,
582241a0
JK		 3443 .bind = rndis_wlan_bind,
3444 .unbind = rndis_wlan_unbind,
bf164cc0
JK		 3445 .status = rndis_status,
3446 .rx_fixup = rndis_rx_fixup,
3447 .tx_fixup = rndis_tx_fixup,
582241a0 3448 .reset = rndis_wlan_reset,
222ec50a 3449 .stop = rndis_wlan_stop,
59620e9f 3450 .early_init = bcm4320b_early_init,
2a4901bc 3451 .indication = rndis_wlan_indication,
bf164cc0
JK		 3452};
3453
3454static const struct driver_info bcm4320a_info = {
3455 .description = "Wireless RNDIS device, BCM4320a based",
1487cd5e
JK		 3456 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3457 FLAG_AVOID_UNLINK_URBS,
582241a0
JK		 3458 .bind = rndis_wlan_bind,
3459 .unbind = rndis_wlan_unbind,
bf164cc0
JK		 3460 .status = rndis_status,
3461 .rx_fixup = rndis_rx_fixup,
3462 .tx_fixup = rndis_tx_fixup,
582241a0 3463 .reset = rndis_wlan_reset,
222ec50a 3464 .stop = rndis_wlan_stop,
59620e9f 3465 .early_init = bcm4320a_early_init,
2a4901bc 3466 .indication = rndis_wlan_indication,
bf164cc0
JK		 3467};
3468
582241a0 3469static const struct driver_info rndis_wlan_info = {
bf164cc0 3470 .description = "Wireless RNDIS device",
1487cd5e
JK		 3471 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3472 FLAG_AVOID_UNLINK_URBS,
582241a0
JK		 3473 .bind = rndis_wlan_bind,
3474 .unbind = rndis_wlan_unbind,
bf164cc0
JK		 3475 .status = rndis_status,
3476 .rx_fixup = rndis_rx_fixup,
3477 .tx_fixup = rndis_tx_fixup,
582241a0 3478 .reset = rndis_wlan_reset,
222ec50a 3479 .stop = rndis_wlan_stop,
5cb56af2 3480 .early_init = unknown_early_init,
2a4901bc 3481 .indication = rndis_wlan_indication,
bf164cc0
JK		 3482};
3483
3484/*-------------------------------------------------------------------------*/
3485
3486static const struct usb_device_id products [] = {
3487#define RNDIS_MASTER_INTERFACE \
3488 .bInterfaceClass = USB_CLASS_COMM, \
3489 .bInterfaceSubClass = 2 /* ACM */, \
3490 .bInterfaceProtocol = 0x0ff
3491
3492/* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3493 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3494 */
3495{
3496 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3497 | USB_DEVICE_ID_MATCH_DEVICE,
3498 .idVendor = 0x0411,
3499 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3500 RNDIS_MASTER_INTERFACE,
3501 .driver_info = (unsigned long) &bcm4320b_info,
3502}, {
3503 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3504 | USB_DEVICE_ID_MATCH_DEVICE,
3505 .idVendor = 0x0baf,
3506 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3507 RNDIS_MASTER_INTERFACE,
3508 .driver_info = (unsigned long) &bcm4320b_info,
3509}, {
3510 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3511 | USB_DEVICE_ID_MATCH_DEVICE,
3512 .idVendor = 0x050d,
3513 .idProduct = 0x011b, /* Belkin F5D7051 */
3514 RNDIS_MASTER_INTERFACE,
3515 .driver_info = (unsigned long) &bcm4320b_info,
3516}, {
3517 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3518 | USB_DEVICE_ID_MATCH_DEVICE,
3519 .idVendor = 0x1799, /* Belkin has two vendor ids */
3520 .idProduct = 0x011b, /* Belkin F5D7051 */
3521 RNDIS_MASTER_INTERFACE,
3522 .driver_info = (unsigned long) &bcm4320b_info,
3523}, {
3524 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3525 | USB_DEVICE_ID_MATCH_DEVICE,
3526 .idVendor = 0x13b1,
3527 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3528 RNDIS_MASTER_INTERFACE,
3529 .driver_info = (unsigned long) &bcm4320b_info,
3530}, {
3531 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3532 | USB_DEVICE_ID_MATCH_DEVICE,
3533 .idVendor = 0x13b1,
3534 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3535 RNDIS_MASTER_INTERFACE,
3536 .driver_info = (unsigned long) &bcm4320b_info,
3537}, {
3538 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3539 | USB_DEVICE_ID_MATCH_DEVICE,
3540 .idVendor = 0x0b05,
3541 .idProduct = 0x1717, /* Asus WL169gE */
3542 RNDIS_MASTER_INTERFACE,
3543 .driver_info = (unsigned long) &bcm4320b_info,
3544}, {
3545 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3546 | USB_DEVICE_ID_MATCH_DEVICE,
3547 .idVendor = 0x0a5c,
3548 .idProduct = 0xd11b, /* Eminent EM4045 */
3549 RNDIS_MASTER_INTERFACE,
3550 .driver_info = (unsigned long) &bcm4320b_info,
3551}, {
3552 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3553 | USB_DEVICE_ID_MATCH_DEVICE,
3554 .idVendor = 0x1690,
3555 .idProduct = 0x0715, /* BT Voyager 1055 */
3556 RNDIS_MASTER_INTERFACE,
3557 .driver_info = (unsigned long) &bcm4320b_info,
3558},
3559/* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3560 * parameters available, hardware probably contain older firmware version with
3561 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3562 */
3563{
3564 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3565 | USB_DEVICE_ID_MATCH_DEVICE,
3566 .idVendor = 0x13b1,
3567 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3568 RNDIS_MASTER_INTERFACE,
3569 .driver_info = (unsigned long) &bcm4320a_info,
3570}, {
3571 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3572 | USB_DEVICE_ID_MATCH_DEVICE,
3573 .idVendor = 0x0baf,
3574 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3575 RNDIS_MASTER_INTERFACE,
3576 .driver_info = (unsigned long) &bcm4320a_info,
3577}, {
3578 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3579 | USB_DEVICE_ID_MATCH_DEVICE,
3580 .idVendor = 0x0411,
3581 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3582 RNDIS_MASTER_INTERFACE,
3583 .driver_info = (unsigned long) &bcm4320a_info,
3584},
3585/* Generic Wireless RNDIS devices that we don't have exact
3586 * idVendor/idProduct/chip yet.
3587 */
3588{
3589 /* RNDIS is MSFT's un-official variant of CDC ACM */
3590 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
582241a0 3591 .driver_info = (unsigned long) &rndis_wlan_info,
bf164cc0
JK		 3592}, {
3593 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3594 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
582241a0 3595 .driver_info = (unsigned long) &rndis_wlan_info,
bf164cc0
JK		 3596},
3597 { }, // END
3598};
3599MODULE_DEVICE_TABLE(usb, products);
3600
3601static struct usb_driver rndis_wlan_driver = {
3602 .name = "rndis_wlan",
3603 .id_table = products,
3604 .probe = usbnet_probe,
3605 .disconnect = usbnet_disconnect,
3606 .suspend = usbnet_suspend,
3607 .resume = usbnet_resume,
3608};
3609
3610static int __init rndis_wlan_init(void)
3611{
3612 return usb_register(&rndis_wlan_driver);
3613}
3614module_init(rndis_wlan_init);
3615
3616static void __exit rndis_wlan_exit(void)
3617{
3618 usb_deregister(&rndis_wlan_driver);
3619}
3620module_exit(rndis_wlan_exit);
3621
3622MODULE_AUTHOR("Bjorge Dijkstra");
3623MODULE_AUTHOR("Jussi Kivilinna");
3624MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3625MODULE_LICENSE("GPL");
3626
Linux kernel - Deliverables
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