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rndis_wlan: scanning, workaround device returning incorrect bssid-list item count.
[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,
dbd2fd65 557 u8 key_index, bool unicast, bool multicast);
84bf8400 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
22288a58
JP		 820static int rndis_set_oid(struct usbnet *dev, __le32 oid, const void *data,
821 int len)
bf164cc0 822{
582241a0 823 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
bf164cc0
JK		 824 union {
825 void *buf;
826 struct rndis_msg_hdr *header;
827 struct rndis_set *set;
828 struct rndis_set_c *set_c;
829 } u;
830 int ret, buflen;
831
832 buflen = len + sizeof(*u.set);
833 if (buflen < CONTROL_BUFFER_SIZE)
834 buflen = CONTROL_BUFFER_SIZE;
90d07349
JK		 835
836 if (buflen > COMMAND_BUFFER_SIZE) {
837 u.buf = kmalloc(buflen, GFP_KERNEL);
838 if (!u.buf)
839 return -ENOMEM;
840 } else {
841 u.buf = priv->command_buffer;
842 }
843
844 mutex_lock(&priv->command_lock);
bf164cc0
JK		 845
846 memset(u.set, 0, sizeof *u.set);
847 u.set->msg_type = RNDIS_MSG_SET;
848 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
849 u.set->oid = oid;
850 u.set->len = cpu_to_le32(len);
35c26c2c
HH		 851 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
852 u.set->handle = cpu_to_le32(0);
bf164cc0
JK		 853 memcpy(u.buf + sizeof(*u.set), data, len);
854
5f81ff5a 855 priv->current_command_oid = oid;
818727ba 856 ret = rndis_command(dev, u.header, buflen);
5f81ff5a 857 priv->current_command_oid = 0;
27b7b5c1 858 if (ret < 0)
60b86755
JP		 859 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
860 __func__, oid_to_string(oid), ret,
861 le32_to_cpu(u.set_c->status));
27b7b5c1
JK		 862
863 if (ret == 0) {
bf164cc0
JK		 864 ret = rndis_error_status(u.set_c->status);
865
27b7b5c1 866 if (ret < 0)
60b86755
JP		 867 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
868 __func__, oid_to_string(oid),
869 le32_to_cpu(u.set_c->status), ret);
27b7b5c1
JK		 870 }
871
90d07349
JK		 872 mutex_unlock(&priv->command_lock);
873
874 if (u.buf != priv->command_buffer)
875 kfree(u.buf);
bf164cc0
JK		 876 return ret;
877}
878
7eaab708
JK		 879static int rndis_reset(struct usbnet *usbdev)
880{
881 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
882 struct rndis_reset *reset;
883 int ret;
884
885 mutex_lock(&priv->command_lock);
886
887 reset = (void *)priv->command_buffer;
888 memset(reset, 0, sizeof(*reset));
889 reset->msg_type = RNDIS_MSG_RESET;
890 reset->msg_len = cpu_to_le32(sizeof(*reset));
5f81ff5a 891 priv->current_command_oid = 0;
7eaab708
JK		 892 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
893
894 mutex_unlock(&priv->command_lock);
895
896 if (ret < 0)
897 return ret;
898 return 0;
899}
900
bf164cc0
JK		 901/*
902 * Specs say that we can only set config parameters only soon after device
903 * initialization.
904 * value_type: 0 = u32, 2 = unicode string
905 */
906static int rndis_set_config_parameter(struct usbnet *dev, char *param,
907 int value_type, void *value)
908{
1e41e1d2 909 struct ndis_config_param *infobuf;
bf164cc0
JK		 910 int value_len, info_len, param_len, ret, i;
911 __le16 *unibuf;
912 __le32 *dst_value;
913
914 if (value_type == 0)
915 value_len = sizeof(__le32);
916 else if (value_type == 2)
917 value_len = strlen(value) * sizeof(__le16);
918 else
919 return -EINVAL;
920
921 param_len = strlen(param) * sizeof(__le16);
922 info_len = sizeof(*infobuf) + param_len + value_len;
923
924#ifdef DEBUG
925 info_len += 12;
926#endif
927 infobuf = kmalloc(info_len, GFP_KERNEL);
928 if (!infobuf)
929 return -ENOMEM;
930
931#ifdef DEBUG
932 info_len -= 12;
933 /* extra 12 bytes are for padding (debug output) */
934 memset(infobuf, 0xCC, info_len + 12);
935#endif
936
937 if (value_type == 2)
60b86755
JP		 938 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
939 param, (u8 *)value);
bf164cc0 940 else
60b86755
JP		 941 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
942 param, *(u32 *)value);
bf164cc0 943
461b3f2a
JK		 944 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
945 infobuf->name_length = cpu_to_le32(param_len);
946 infobuf->type = cpu_to_le32(value_type);
947 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
948 infobuf->value_length = cpu_to_le32(value_len);
bf164cc0
JK		 949
950 /* simple string to unicode string conversion */
951 unibuf = (void *)infobuf + sizeof(*infobuf);
952 for (i = 0; i < param_len / sizeof(__le16); i++)
953 unibuf[i] = cpu_to_le16(param[i]);
954
955 if (value_type == 2) {
956 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
957 for (i = 0; i < value_len / sizeof(__le16); i++)
958 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
959 } else {
960 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
961 *dst_value = cpu_to_le32(*(u32 *)value);
962 }
963
964#ifdef DEBUG
60b86755 965 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
bf164cc0
JK		 966 for (i = 0; i < info_len; i += 12) {
967 u32 *tmp = (u32 *)((u8 *)infobuf + i);
60b86755
JP		 968 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
969 cpu_to_be32(tmp[0]),
970 cpu_to_be32(tmp[1]),
971 cpu_to_be32(tmp[2]));
bf164cc0
JK		 972 }
973#endif
974
975 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
976 infobuf, info_len);
977 if (ret != 0)
60b86755
JP		 978 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
979 ret);
bf164cc0
JK		 980
981 kfree(infobuf);
982 return ret;
983}
984
985static int rndis_set_config_parameter_str(struct usbnet *dev,
986 char *param, char *value)
987{
c5c4fe90 988 return rndis_set_config_parameter(dev, param, 2, value);
bf164cc0
JK		 989}
990
bf164cc0
JK		 991/*
992 * data conversion functions
993 */
994static int level_to_qual(int level)
995{
996 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
997 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
998}
999
bf164cc0
JK		 1000/*
1001 * common functions
1002 */
9f77ccab 1003static int set_infra_mode(struct usbnet *usbdev, int mode);
b7cfc5b3 1004static void restore_keys(struct usbnet *usbdev);
b5257c95
JK		 1005static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
1006 bool *matched);
bf164cc0 1007
5cb56af2
JK		 1008static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
1009{
1010 __le32 tmp;
1011
1012 /* Note: OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
1013 tmp = cpu_to_le32(1);
1014 return rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1015 sizeof(tmp));
1016}
1017
1e41e1d2 1018static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
bf164cc0 1019{
582241a0 1020 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1021 int ret;
1022
1023 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
5c52323e 1024 if (ret < 0) {
60b86755 1025 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
5c52323e
JK		 1026 return ret;
1027 }
bf164cc0
JK		 1028 if (ret == 0) {
1029 memcpy(&priv->essid, ssid, sizeof(priv->essid));
051ae0bf 1030 priv->radio_on = true;
60b86755 1031 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
bf164cc0
JK		 1032 }
1033
1034 return ret;
1035}
1036
22288a58 1037static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
5c52323e
JK		 1038{
1039 int ret;
1040
1041 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1042 if (ret < 0) {
60b86755
JP		 1043 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1044 bssid, ret);
5c52323e
JK		 1045 return ret;
1046 }
1047
1048 return ret;
1049}
1050
1051static int clear_bssid(struct usbnet *usbdev)
1052{
22288a58
JP		 1053 static const u8 broadcast_mac[ETH_ALEN] = {
1054 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1055 };
5c52323e
JK		 1056
1057 return set_bssid(usbdev, broadcast_mac);
1058}
bf164cc0
JK		 1059
1060static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1061{
1062 int ret, len;
1063
1064 len = ETH_ALEN;
1065 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
1066
1067 if (ret != 0)
1068 memset(bssid, 0, ETH_ALEN);
1069
1070 return ret;
1071}
1072
4364623c
SA		 1073static int get_association_info(struct usbnet *usbdev,
1074 struct ndis_80211_assoc_info *info, int len)
1075{
1076 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
1077 info, &len);
1078}
bf164cc0 1079
5c52323e 1080static bool is_associated(struct usbnet *usbdev)
bf164cc0 1081{
5c52323e 1082 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1083 u8 bssid[ETH_ALEN];
1084 int ret;
1085
5c52323e
JK		 1086 if (!priv->radio_on)
1087 return false;
1088
bf164cc0
JK		 1089 ret = get_bssid(usbdev, bssid);
1090
7b1fff99 1091 return (ret == 0 && !is_zero_ether_addr(bssid));
bf164cc0
JK		 1092}
1093
051ae0bf 1094static int disassociate(struct usbnet *usbdev, bool reset_ssid)
bf164cc0 1095{
582241a0 1096 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1e41e1d2 1097 struct ndis_80211_ssid ssid;
bf164cc0
JK		 1098 int i, ret = 0;
1099
1100 if (priv->radio_on) {
1101 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1102 if (ret == 0) {
051ae0bf 1103 priv->radio_on = false;
60b86755
JP		 1104 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1105 __func__);
bf164cc0
JK		 1106
1107 if (reset_ssid)
1108 msleep(100);
1109 }
1110 }
1111
1112 /* disassociate causes radio to be turned off; if reset_ssid
1113 * is given, set random ssid to enable radio */
1114 if (reset_ssid) {
9f77ccab
JK		 1115 /* Set device to infrastructure mode so we don't get ad-hoc
1116 * 'media connect' indications with the random ssid.
1117 */
1118 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1119
461b3f2a
JK		 1120 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1121 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1122 ssid.essid[0] = 0x1;
1123 ssid.essid[1] = 0xff;
1124 for (i = 2; i < sizeof(ssid.essid); i++)
1125 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
bf164cc0
JK		 1126 ret = set_essid(usbdev, &ssid);
1127 }
1128 return ret;
1129}
1130
5c52323e
JK		 1131static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1132 enum nl80211_auth_type auth_type, int keymgmt)
bf164cc0 1133{
582241a0 1134 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1135 __le32 tmp;
1136 int auth_mode, ret;
1137
60b86755
JP		 1138 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1139 __func__, wpa_version, auth_type, keymgmt);
bf164cc0 1140
5c52323e
JK		 1141 if (wpa_version & NL80211_WPA_VERSION_2) {
1142 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
aa18294a 1143 auth_mode = NDIS_80211_AUTH_WPA2;
bf164cc0 1144 else
aa18294a 1145 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
5c52323e
JK		 1146 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1147 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
aa18294a 1148 auth_mode = NDIS_80211_AUTH_WPA;
5c52323e 1149 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
aa18294a 1150 auth_mode = NDIS_80211_AUTH_WPA_PSK;
bf164cc0 1151 else
aa18294a 1152 auth_mode = NDIS_80211_AUTH_WPA_NONE;
5c52323e
JK		 1153 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1154 auth_mode = NDIS_80211_AUTH_SHARED;
1155 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
aa18294a 1156 auth_mode = NDIS_80211_AUTH_OPEN;
634a555c
JK		 1157 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1158 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
5c52323e
JK		 1159 else
1160 return -ENOTSUPP;
bf164cc0
JK		 1161
1162 tmp = cpu_to_le32(auth_mode);
1163 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1164 sizeof(tmp));
1165 if (ret != 0) {
60b86755
JP		 1166 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1167 ret);
bf164cc0
JK		 1168 return ret;
1169 }
1170
1171 priv->wpa_version = wpa_version;
5c52323e 1172
bf164cc0
JK		 1173 return 0;
1174}
1175
bf164cc0
JK		 1176static int set_priv_filter(struct usbnet *usbdev)
1177{
582241a0 1178 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 1179 __le32 tmp;
1180
60b86755
JP		 1181 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1182 __func__, priv->wpa_version);
bf164cc0 1183
5c52323e
JK		 1184 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1185 priv->wpa_version & NL80211_WPA_VERSION_1)
aa18294a 1186 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
bf164cc0 1187 else
aa18294a 1188 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
bf164cc0
JK		 1189
1190 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1191 sizeof(tmp));
1192}
1193
bf164cc0
JK		 1194static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1195{
bf164cc0
JK		 1196 __le32 tmp;
1197 int encr_mode, ret;
1198
60b86755
JP		 1199 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1200 __func__, pairwise, groupwise);
bf164cc0 1201
5c52323e 1202 if (pairwise & RNDIS_WLAN_ALG_CCMP)
aa18294a 1203 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
5c52323e 1204 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
aa18294a 1205 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
5c52323e 1206 else if (pairwise & RNDIS_WLAN_ALG_WEP)
aa18294a 1207 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
5c52323e 1208 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
aa18294a 1209 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
5c52323e 1210 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
aa18294a 1211 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
bf164cc0 1212 else
aa18294a 1213 encr_mode = NDIS_80211_ENCR_DISABLED;
bf164cc0
JK		 1214
1215 tmp = cpu_to_le32(encr_mode);
1216 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1217 sizeof(tmp));
1218 if (ret != 0) {
60b86755
JP		 1219 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1220 ret);
bf164cc0
JK		 1221 return ret;
1222 }
1223
bf164cc0
JK		 1224 return 0;
1225}
1226
bf164cc0
JK		 1227static int set_infra_mode(struct usbnet *usbdev, int mode)
1228{
582241a0 1229 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 1230 __le32 tmp;
b7cfc5b3 1231 int ret;
bf164cc0 1232
60b86755
JP		 1233 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1234 __func__, priv->infra_mode);
bf164cc0
JK		 1235
1236 tmp = cpu_to_le32(mode);
1237 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1238 sizeof(tmp));
1239 if (ret != 0) {
60b86755
JP		 1240 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1241 ret);
bf164cc0
JK		 1242 return ret;
1243 }
1244
1245 /* NDIS drivers clear keys when infrastructure mode is
1246 * changed. But Linux tools assume otherwise. So set the
1247 * keys */
b7cfc5b3 1248 restore_keys(usbdev);
bf164cc0
JK		 1249
1250 priv->infra_mode = mode;
1251 return 0;
1252}
1253
d75ec2b7
JK		 1254static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1255{
1256 __le32 tmp;
1257
60b86755 1258 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
d75ec2b7
JK		 1259
1260 if (rts_threshold < 0 || rts_threshold > 2347)
1261 rts_threshold = 2347;
1262
1263 tmp = cpu_to_le32(rts_threshold);
1264 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1265 sizeof(tmp));
1266}
1267
d75ec2b7
JK		 1268static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1269{
1270 __le32 tmp;
1271
60b86755 1272 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
d75ec2b7
JK		 1273
1274 if (frag_threshold < 256 || frag_threshold > 2346)
1275 frag_threshold = 2346;
1276
1277 tmp = cpu_to_le32(frag_threshold);
1278 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1279 sizeof(tmp));
1280}
1281
bf164cc0
JK		 1282static void set_default_iw_params(struct usbnet *usbdev)
1283{
aa18294a 1284 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
5c52323e
JK		 1285 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1286 RNDIS_WLAN_KEY_MGMT_NONE);
bf164cc0 1287 set_priv_filter(usbdev);
5c52323e 1288 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
bf164cc0
JK		 1289}
1290
bf164cc0
JK		 1291static int deauthenticate(struct usbnet *usbdev)
1292{
1293 int ret;
1294
051ae0bf 1295 ret = disassociate(usbdev, true);
bf164cc0
JK		 1296 set_default_iw_params(usbdev);
1297 return ret;
1298}
1299
5c52323e
JK		 1300static int set_channel(struct usbnet *usbdev, int channel)
1301{
1302 struct ndis_80211_conf config;
1303 unsigned int dsconfig;
1304 int len, ret;
1305
60b86755 1306 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
5c52323e
JK		 1307
1308 /* this OID is valid only when not associated */
1309 if (is_associated(usbdev))
1310 return 0;
1311
1312 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1313
1314 len = sizeof(config);
1315 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1316 if (ret < 0) {
60b86755
JP		 1317 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1318 __func__);
5c52323e
JK		 1319 return ret;
1320 }
1321
1322 config.ds_config = cpu_to_le32(dsconfig);
1323 ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1324 sizeof(config));
1325
60b86755 1326 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
5c52323e
JK		 1327
1328 return ret;
1329}
1330
bf164cc0 1331/* index must be 0 - N, as per NDIS */
5c52323e
JK		 1332static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1333 int index)
bf164cc0 1334{
582241a0 1335 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1e41e1d2 1336 struct ndis_80211_wep_key ndis_key;
84bf8400
JK		 1337 u32 cipher;
1338 int ret;
1339
60b86755
JP		 1340 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1341 __func__, index, key_len);
bf164cc0 1342
40ba60dd 1343 if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
bf164cc0
JK		 1344 return -EINVAL;
1345
b7cfc5b3
JK		 1346 if (key_len == 5)
1347 cipher = WLAN_CIPHER_SUITE_WEP40;
1348 else
1349 cipher = WLAN_CIPHER_SUITE_WEP104;
1350
bf164cc0
JK		 1351 memset(&ndis_key, 0, sizeof(ndis_key));
1352
461b3f2a
JK		 1353 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1354 ndis_key.length = cpu_to_le32(key_len);
1355 ndis_key.index = cpu_to_le32(index);
1356 memcpy(&ndis_key.material, key, key_len);
bf164cc0
JK		 1357
1358 if (index == priv->encr_tx_key_index) {
aa18294a 1359 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
5c52323e
JK		 1360 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1361 RNDIS_WLAN_ALG_NONE);
bf164cc0 1362 if (ret)
60b86755
JP		 1363 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1364 ret);
bf164cc0
JK		 1365 }
1366
1367 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1368 sizeof(ndis_key));
1369 if (ret != 0) {
60b86755
JP		 1370 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1371 index + 1, ret);
bf164cc0
JK		 1372 return ret;
1373 }
1374
b7cfc5b3
JK		 1375 priv->encr_keys[index].len = key_len;
1376 priv->encr_keys[index].cipher = cipher;
1377 memcpy(&priv->encr_keys[index].material, key, key_len);
1378 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
bf164cc0
JK		 1379
1380 return 0;
1381}
1382
b145ee0c 1383static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
84bf8400 1384 int index, const u8 *addr, const u8 *rx_seq,
53d27eaf 1385 int seq_len, u32 cipher, __le32 flags)
b145ee0c 1386{
582241a0 1387 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
b145ee0c 1388 struct ndis_80211_key ndis_key;
b7cfc5b3 1389 bool is_addr_ok;
b145ee0c
JK		 1390 int ret;
1391
b7cfc5b3 1392 if (index < 0 || index >= 4) {
60b86755
JP		 1393 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1394 __func__, index);
b145ee0c 1395 return -EINVAL;
b7cfc5b3
JK		 1396 }
1397 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
60b86755
JP		 1398 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1399 __func__, key_len);
b145ee0c 1400 return -EINVAL;
b7cfc5b3 1401 }
84bf8400
JK		 1402 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1403 if (!rx_seq || seq_len <= 0) {
60b86755
JP		 1404 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1405 __func__);
84bf8400
JK		 1406 return -EINVAL;
1407 }
1408 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
60b86755 1409 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
84bf8400
JK		 1410 return -EINVAL;
1411 }
b7cfc5b3 1412 }
84bf8400 1413
7b1fff99
JK		 1414 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1415 !is_broadcast_ether_addr(addr);
b7cfc5b3 1416 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
60b86755
JP		 1417 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1418 __func__, addr);
b145ee0c 1419 return -EINVAL;
b7cfc5b3 1420 }
b145ee0c 1421
60b86755
JP		 1422 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1423 __func__, index,
1424 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1425 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1426 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
b145ee0c
JK		 1427
1428 memset(&ndis_key, 0, sizeof(ndis_key));
1429
1430 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1431 sizeof(ndis_key.material) + key_len);
1432 ndis_key.length = cpu_to_le32(key_len);
1433 ndis_key.index = cpu_to_le32(index) | flags;
1434
b7cfc5b3 1435 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
b145ee0c
JK		 1436 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1437 * different order than NDIS spec, so swap the order here. */
1438 memcpy(ndis_key.material, key, 16);
1439 memcpy(ndis_key.material + 16, key + 24, 8);
1440 memcpy(ndis_key.material + 24, key + 16, 8);
1441 } else
1442 memcpy(ndis_key.material, key, key_len);
1443
aa18294a 1444 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
84bf8400 1445 memcpy(ndis_key.rsc, rx_seq, seq_len);
b145ee0c 1446
aa18294a 1447 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
b145ee0c 1448 /* pairwise key */
b7cfc5b3 1449 memcpy(ndis_key.bssid, addr, ETH_ALEN);
b145ee0c
JK		 1450 } else {
1451 /* group key */
aa18294a 1452 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
b145ee0c
JK		 1453 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1454 else
1455 get_bssid(usbdev, ndis_key.bssid);
1456 }
1457
1458 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1459 le32_to_cpu(ndis_key.size));
60b86755
JP		 1460 netdev_dbg(usbdev->net, "%s(): OID_802_11_ADD_KEY -> %08X\n",
1461 __func__, ret);
b145ee0c
JK		 1462 if (ret != 0)
1463 return ret;
1464
b7cfc5b3
JK		 1465 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1466 priv->encr_keys[index].len = key_len;
1467 priv->encr_keys[index].cipher = cipher;
1468 memcpy(&priv->encr_keys[index].material, key, key_len);
1469 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1470 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1471 else
1472 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
9839178e 1473
aa18294a 1474 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
b145ee0c
JK		 1475 priv->encr_tx_key_index = index;
1476
1477 return 0;
1478}
1479
b7cfc5b3
JK		 1480static int restore_key(struct usbnet *usbdev, int key_idx)
1481{
1482 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1483 struct rndis_wlan_encr_key key;
84bf8400
JK		 1484
1485 if (is_wpa_key(priv, key_idx))
1486 return 0;
b7cfc5b3
JK		 1487
1488 key = priv->encr_keys[key_idx];
1489
60b86755 1490 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
b7cfc5b3
JK		 1491
1492 if (key.len == 0)
1493 return 0;
1494
b7cfc5b3
JK		 1495 return add_wep_key(usbdev, key.material, key.len, key_idx);
1496}
1497
b7cfc5b3
JK		 1498static void restore_keys(struct usbnet *usbdev)
1499{
1500 int i;
1501
1502 for (i = 0; i < 4; i++)
1503 restore_key(usbdev, i);
1504}
1505
b7cfc5b3
JK		 1506static void clear_key(struct rndis_wlan_private *priv, int idx)
1507{
1508 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1509}
1510
bf164cc0 1511/* remove_key is for both wep and wpa */
84bf8400 1512static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
bf164cc0 1513{
582241a0 1514 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1e41e1d2 1515 struct ndis_80211_remove_key remove_key;
bf164cc0 1516 __le32 keyindex;
b7cfc5b3 1517 bool is_wpa;
bf164cc0
JK		 1518 int ret;
1519
b7cfc5b3 1520 if (priv->encr_keys[index].len == 0)
bf164cc0
JK		 1521 return 0;
1522
b7cfc5b3 1523 is_wpa = is_wpa_key(priv, index);
bf164cc0 1524
60b86755
JP		 1525 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1526 __func__, index, is_wpa ? "wpa" : "wep",
1527 priv->encr_keys[index].len);
b7cfc5b3
JK		 1528
1529 clear_key(priv, index);
1530
1531 if (is_wpa) {
461b3f2a
JK		 1532 remove_key.size = cpu_to_le32(sizeof(remove_key));
1533 remove_key.index = cpu_to_le32(index);
bf164cc0
JK		 1534 if (bssid) {
1535 /* pairwise key */
7b1fff99 1536 if (!is_broadcast_ether_addr(bssid))
b4703a2e 1537 remove_key.index |=
aa18294a 1538 NDIS_80211_ADDKEY_PAIRWISE_KEY;
461b3f2a
JK		 1539 memcpy(remove_key.bssid, bssid,
1540 sizeof(remove_key.bssid));
bf164cc0 1541 } else
461b3f2a
JK		 1542 memset(remove_key.bssid, 0xff,
1543 sizeof(remove_key.bssid));
bf164cc0
JK		 1544
1545 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1546 sizeof(remove_key));
1547 if (ret != 0)
1548 return ret;
1549 } else {
1550 keyindex = cpu_to_le32(index);
1551 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1552 sizeof(keyindex));
1553 if (ret != 0) {
60b86755
JP		 1554 netdev_warn(usbdev->net,
1555 "removing encryption key %d failed (%08X)\n",
1556 index, ret);
bf164cc0
JK		 1557 return ret;
1558 }
1559 }
1560
1561 /* if it is transmit key, disable encryption */
1562 if (index == priv->encr_tx_key_index)
5c52323e 1563 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
bf164cc0
JK		 1564
1565 return 0;
1566}
1567
bf164cc0
JK		 1568static void set_multicast_list(struct usbnet *usbdev)
1569{
582241a0 1570 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
22bedad3 1571 struct netdev_hw_addr *ha;
12c3400a
JP		 1572 __le32 filter, basefilter;
1573 int ret;
1574 char *mc_addrs = NULL;
1575 int mc_count;
bf164cc0 1576
12c3400a
JP		 1577 basefilter = filter = RNDIS_PACKET_TYPE_DIRECTED |
1578 RNDIS_PACKET_TYPE_BROADCAST;
bf164cc0
JK		 1579
1580 if (usbdev->net->flags & IFF_PROMISC) {
1581 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1582 RNDIS_PACKET_TYPE_ALL_LOCAL;
12c3400a
JP		 1583 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1584 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1585 }
1586
1587 if (filter != basefilter)
1588 goto set_filter;
1589
1590 /*
1591 * mc_list should be accessed holding the lock, so copy addresses to
1592 * local buffer first.
1593 */
1594 netif_addr_lock_bh(usbdev->net);
1595 mc_count = netdev_mc_count(usbdev->net);
1596 if (mc_count > priv->multicast_size) {
bf164cc0 1597 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
12c3400a
JP		 1598 } else if (mc_count) {
1599 int i = 0;
1600
1601 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1602 if (!mc_addrs) {
60b86755
JP		 1603 netdev_warn(usbdev->net,
1604 "couldn't alloc %d bytes of memory\n",
12c3400a 1605 mc_count * ETH_ALEN);
655ffee2 1606 netif_addr_unlock_bh(usbdev->net);
bf164cc0
JK		 1607 return;
1608 }
1609
22bedad3 1610 netdev_for_each_mc_addr(ha, usbdev->net)
12c3400a 1611 memcpy(mc_addrs + i++ * ETH_ALEN,
22bedad3 1612 ha->addr, ETH_ALEN);
12c3400a
JP		 1613 }
1614 netif_addr_unlock_bh(usbdev->net);
bf164cc0 1615
12c3400a
JP		 1616 if (filter != basefilter)
1617 goto set_filter;
1618
1619 if (mc_count) {
1620 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, mc_addrs,
1621 mc_count * ETH_ALEN);
1622 kfree(mc_addrs);
1623 if (ret == 0)
bf164cc0
JK		 1624 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1625 else
1626 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1627
60b86755 1628 netdev_dbg(usbdev->net, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
12c3400a 1629 mc_count, priv->multicast_size, ret);
bf164cc0
JK		 1630 }
1631
12c3400a 1632set_filter:
bf164cc0
JK		 1633 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1634 sizeof(filter));
1635 if (ret < 0) {
60b86755
JP		 1636 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1637 le32_to_cpu(filter));
bf164cc0
JK		 1638 }
1639
60b86755
JP		 1640 netdev_dbg(usbdev->net, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1641 le32_to_cpu(filter), ret);
bf164cc0
JK		 1642}
1643
5a7d0583
JK		 1644#ifdef DEBUG
1645static void debug_print_pmkids(struct usbnet *usbdev,
1646 struct ndis_80211_pmkid *pmkids,
1647 const char *func_str)
1648{
1649 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1650 int i, len, count, max_pmkids, entry_len;
1651
1652 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1653 len = le32_to_cpu(pmkids->length);
1654 count = le32_to_cpu(pmkids->bssid_info_count);
1655
1656 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1657
1658 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1659 "%d)\n", func_str, count, len, entry_len);
1660
1661 if (count > max_pmkids)
1662 count = max_pmkids;
1663
1664 for (i = 0; i < count; i++) {
1665 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1666
1667 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1668 "pmkid: %08X:%08X:%08X:%08X\n",
1669 func_str, pmkids->bssid_info[i].bssid,
1670 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1671 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1672 }
1673}
1674#else
1675static void debug_print_pmkids(struct usbnet *usbdev,
1676 struct ndis_80211_pmkid *pmkids,
1677 const char *func_str)
1678{
1679 return;
1680}
1681#endif
1682
1683static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1684{
1685 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1686 struct ndis_80211_pmkid *pmkids;
1687 int len, ret, max_pmkids;
1688
1689 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1690 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1691
1692 pmkids = kzalloc(len, GFP_KERNEL);
1693 if (!pmkids)
1694 return ERR_PTR(-ENOMEM);
1695
1696 pmkids->length = cpu_to_le32(len);
1697 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1698
1699 ret = rndis_query_oid(usbdev, OID_802_11_PMKID, pmkids, &len);
1700 if (ret < 0) {
1701 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d)"
1702 " -> %d\n", __func__, len, max_pmkids, ret);
1703
1704 kfree(pmkids);
1705 return ERR_PTR(ret);
1706 }
1707
1708 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1709 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1710
1711 debug_print_pmkids(usbdev, pmkids, __func__);
1712
1713 return pmkids;
1714}
1715
1716static int set_device_pmkids(struct usbnet *usbdev,
1717 struct ndis_80211_pmkid *pmkids)
1718{
1719 int ret, len, num_pmkids;
1720
1721 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1722 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1723 pmkids->length = cpu_to_le32(len);
1724
1725 debug_print_pmkids(usbdev, pmkids, __func__);
1726
1727 ret = rndis_set_oid(usbdev, OID_802_11_PMKID, pmkids,
1728 le32_to_cpu(pmkids->length));
1729 if (ret < 0) {
1730 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d) -> %d"
1731 "\n", __func__, len, num_pmkids, ret);
1732 }
1733
1734 kfree(pmkids);
1735 return ret;
1736}
1737
1738static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1739 struct ndis_80211_pmkid *pmkids,
1740 struct cfg80211_pmksa *pmksa,
1741 int max_pmkids)
1742{
1743 int i, len, count, newlen, err;
1744
1745 len = le32_to_cpu(pmkids->length);
1746 count = le32_to_cpu(pmkids->bssid_info_count);
1747
1748 if (count > max_pmkids)
1749 count = max_pmkids;
1750
1751 for (i = 0; i < count; i++)
1752 if (!compare_ether_addr(pmkids->bssid_info[i].bssid,
1753 pmksa->bssid))
1754 break;
1755
1756 /* pmkid not found */
1757 if (i == count) {
1758 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1759 __func__, pmksa->bssid);
1760 err = -ENOENT;
1761 goto error;
1762 }
1763
1764 for (; i + 1 < count; i++)
1765 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1766
1767 count--;
1768 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1769
1770 pmkids->length = cpu_to_le32(newlen);
1771 pmkids->bssid_info_count = cpu_to_le32(count);
1772
1773 return pmkids;
1774error:
1775 kfree(pmkids);
1776 return ERR_PTR(err);
1777}
1778
1779static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1780 struct ndis_80211_pmkid *pmkids,
1781 struct cfg80211_pmksa *pmksa,
1782 int max_pmkids)
1783{
1784 int i, err, len, count, newlen;
1785
1786 len = le32_to_cpu(pmkids->length);
1787 count = le32_to_cpu(pmkids->bssid_info_count);
1788
1789 if (count > max_pmkids)
1790 count = max_pmkids;
1791
1792 /* update with new pmkid */
1793 for (i = 0; i < count; i++) {
1794 if (compare_ether_addr(pmkids->bssid_info[i].bssid,
1795 pmksa->bssid))
1796 continue;
1797
1798 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1799 WLAN_PMKID_LEN);
1800
1801 return pmkids;
1802 }
1803
1804 /* out of space, return error */
1805 if (i == max_pmkids) {
1806 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1807 err = -ENOSPC;
1808 goto error;
1809 }
1810
1811 /* add new pmkid */
1812 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1813
1814 pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1815 if (!pmkids) {
1816 err = -ENOMEM;
1817 goto error;
1818 }
1819
1820 pmkids->length = cpu_to_le32(newlen);
1821 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1822
1823 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1824 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1825
1826 return pmkids;
1827error:
1828 kfree(pmkids);
1829 return ERR_PTR(err);
1830}
1831
964c1d41
JL		 1832/*
1833 * cfg80211 ops
1834 */
e36d56b6
JB		 1835static int rndis_change_virtual_intf(struct wiphy *wiphy,
1836 struct net_device *dev,
964c1d41
JL		 1837 enum nl80211_iftype type, u32 *flags,
1838 struct vif_params *params)
1839{
16139172
JK		 1840 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1841 struct usbnet *usbdev = priv->usbdev;
964c1d41
JL		 1842 int mode;
1843
964c1d41
JL		 1844 switch (type) {
1845 case NL80211_IFTYPE_ADHOC:
aa18294a 1846 mode = NDIS_80211_INFRA_ADHOC;
964c1d41
JL		 1847 break;
1848 case NL80211_IFTYPE_STATION:
aa18294a 1849 mode = NDIS_80211_INFRA_INFRA;
964c1d41
JL		 1850 break;
1851 default:
1852 return -EINVAL;
1853 }
1854
16139172
JK		 1855 priv->wdev.iftype = type;
1856
964c1d41
JL		 1857 return set_infra_mode(usbdev, mode);
1858}
1859
d75ec2b7
JK		 1860static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1861{
1862 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1863 struct usbnet *usbdev = priv->usbdev;
1864 int err;
1865
1866 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1867 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1868 if (err < 0)
1869 return err;
1870 }
1871
1872 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1873 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1874 if (err < 0)
1875 return err;
1876 }
1877
1878 return 0;
1879}
1880
fa61cf70
JO		 1881static int rndis_set_tx_power(struct wiphy *wiphy,
1882 enum nl80211_tx_power_setting type,
1883 int mbm)
222ec50a
JK		 1884{
1885 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1886 struct usbnet *usbdev = priv->usbdev;
1887
fa61cf70
JO		 1888 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1889 __func__, type, mbm);
1890
1891 if (mbm < 0 || (mbm % 100))
1892 return -ENOTSUPP;
222ec50a
JK		 1893
1894 /* Device doesn't support changing txpower after initialization, only
1895 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1896 * currently used.
1897 */
fa61cf70
JO		 1898 if (type == NL80211_TX_POWER_AUTOMATIC ||
1899 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
222ec50a 1900 if (!priv->radio_on)
051ae0bf 1901 disassociate(usbdev, true); /* turn on radio */
222ec50a
JK		 1902
1903 return 0;
1904 }
1905
1906 return -ENOTSUPP;
1907}
1908
222ec50a
JK		 1909static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1910{
1911 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1912 struct usbnet *usbdev = priv->usbdev;
1913
1914 *dbm = get_bcm4320_power_dbm(priv);
1915
60b86755 1916 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
222ec50a
JK		 1917
1918 return 0;
1919}
1920
b1d25a67 1921#define SCAN_DELAY_JIFFIES (6 * HZ)
71a7b26d
JK		 1922static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1923 struct cfg80211_scan_request *request)
1924{
1925 struct usbnet *usbdev = netdev_priv(dev);
582241a0 1926 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
71a7b26d 1927 int ret;
5cb56af2 1928 int delay = SCAN_DELAY_JIFFIES;
71a7b26d 1929
60b86755 1930 netdev_dbg(usbdev->net, "cfg80211.scan\n");
71a7b26d 1931
db0dd396
JK		 1932 /* Get current bssid list from device before new scan, as new scan
1933 * clears internal bssid list.
1934 */
b5257c95 1935 rndis_check_bssid_list(usbdev, NULL, NULL);
db0dd396 1936
71a7b26d
JK		 1937 if (!request)
1938 return -EINVAL;
1939
1940 if (priv->scan_request && priv->scan_request != request)
1941 return -EBUSY;
1942
1943 priv->scan_request = request;
1944
5cb56af2 1945 ret = rndis_start_bssid_list_scan(usbdev);
71a7b26d 1946 if (ret == 0) {
5cb56af2
JK		 1947 if (priv->device_type == RNDIS_BCM4320A)
1948 delay = HZ;
1949
71a7b26d 1950 /* Wait before retrieving scan results from device */
5cb56af2 1951 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
71a7b26d
JK		 1952 }
1953
1954 return ret;
1955}
1956
71a7b26d
JK		 1957static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1958 struct ndis_80211_bssid_ex *bssid)
1959{
582241a0 1960 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
71a7b26d
JK		 1961 struct ieee80211_channel *channel;
1962 s32 signal;
1963 u64 timestamp;
1964 u16 capability;
1965 u16 beacon_interval;
1966 struct ndis_80211_fixed_ies *fixed;
1967 int ie_len, bssid_len;
1968 u8 *ie;
1969
bfe3850b
JK		 1970 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
1971 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
5fd8f250 1972
71a7b26d
JK		 1973 /* parse bssid structure */
1974 bssid_len = le32_to_cpu(bssid->length);
1975
1976 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1977 sizeof(struct ndis_80211_fixed_ies))
1978 return NULL;
1979
1980 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1981
1982 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1983 ie_len = min(bssid_len - (int)sizeof(*bssid),
1984 (int)le32_to_cpu(bssid->ie_length));
1985 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1986 if (ie_len < 0)
1987 return NULL;
1988
1989 /* extract data for cfg80211_inform_bss */
1990 channel = ieee80211_get_channel(priv->wdev.wiphy,
1991 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1992 if (!channel)
1993 return NULL;
1994
1995 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1996 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1997 capability = le16_to_cpu(fixed->capabilities);
1998 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1999
2000 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2001 timestamp, capability, beacon_interval, ie, ie_len, signal,
2002 GFP_KERNEL);
2003}
2004
bfe3850b
JK		 2005static struct ndis_80211_bssid_ex *next_bssid_list_item(
2006 struct ndis_80211_bssid_ex *bssid,
2007 int *bssid_len, void *buf, int len)
2008{
2009 void *buf_end, *bssid_end;
2010
2011 buf_end = (char *)buf + len;
2012 bssid_end = (char *)bssid + *bssid_len;
2013
2014 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2015 *bssid_len = 0;
2016 return NULL;
2017 } else {
2018 bssid = (void *)((char *)bssid + *bssid_len);
2019 *bssid_len = le32_to_cpu(bssid->length);
2020 return bssid;
2021 }
2022}
2023
2024static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2025 int bssid_len, void *buf, int len)
2026{
2027 void *buf_end, *bssid_end;
2028
2029 if (!bssid || bssid_len <= 0 || bssid_len > len)
2030 return false;
2031
2032 buf_end = (char *)buf + len;
2033 bssid_end = (char *)bssid + bssid_len;
2034
2035 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2036}
2037
b5257c95
JK		 2038static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2039 bool *matched)
71a7b26d
JK		 2040{
2041 void *buf = NULL;
2042 struct ndis_80211_bssid_list_ex *bssid_list;
2043 struct ndis_80211_bssid_ex *bssid;
bfe3850b 2044 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
71a7b26d 2045
bfe3850b 2046 netdev_dbg(usbdev->net, "%s()\n", __func__);
71a7b26d
JK		 2047
2048 len = CONTROL_BUFFER_SIZE;
5fd8f250 2049resize_buf:
bfe3850b 2050 buf = kzalloc(len, GFP_KERNEL);
71a7b26d
JK		 2051 if (!buf) {
2052 ret = -ENOMEM;
2053 goto out;
2054 }
2055
bfe3850b
JK		 2056 /* BSSID-list might have got bigger last time we checked, keep
2057 * resizing until it won't get any bigger.
2058 */
2059 new_len = len;
2060 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &new_len);
2061 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
71a7b26d
JK		 2062 goto out;
2063
bfe3850b
JK		 2064 if (new_len > len) {
2065 len = new_len;
5fd8f250
JK		 2066 kfree(buf);
2067 goto resize_buf;
2068 }
2069
bfe3850b
JK		 2070 len = new_len;
2071
71a7b26d 2072 bssid_list = buf;
71a7b26d 2073 count = le32_to_cpu(bssid_list->num_items);
bfe3850b
JK		 2074 real_count = 0;
2075 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2076
2077 bssid_len = 0;
2078 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
71a7b26d 2079
bfe3850b
JK		 2080 /* Device returns incorrect 'num_items'. Workaround by ignoring the
2081 * received 'num_items' and walking through full bssid buffer instead.
2082 */
2083 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
b5257c95
JK		 2084 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2085 matched) {
2086 if (compare_ether_addr(bssid->mac, match_bssid))
2087 *matched = true;
2088 }
71a7b26d 2089
bfe3850b
JK		 2090 real_count++;
2091 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
71a7b26d
JK		 2092 }
2093
bfe3850b
JK		 2094 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2095 " %d\n", __func__, count, real_count);
2096
71a7b26d
JK		 2097out:
2098 kfree(buf);
2099 return ret;
2100}
2101
71a7b26d
JK		 2102static void rndis_get_scan_results(struct work_struct *work)
2103{
582241a0
JK		 2104 struct rndis_wlan_private *priv =
2105 container_of(work, struct rndis_wlan_private, scan_work.work);
71a7b26d
JK		 2106 struct usbnet *usbdev = priv->usbdev;
2107 int ret;
2108
60b86755 2109 netdev_dbg(usbdev->net, "get_scan_results\n");
71a7b26d 2110
005ba2f1
JK		 2111 if (!priv->scan_request)
2112 return;
2113
b5257c95 2114 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
71a7b26d
JK		 2115
2116 cfg80211_scan_done(priv->scan_request, ret < 0);
2117
2118 priv->scan_request = NULL;
2119}
2120
5c52323e
JK		 2121static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2122 struct cfg80211_connect_params *sme)
2123{
2124 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2125 struct usbnet *usbdev = priv->usbdev;
2126 struct ieee80211_channel *channel = sme->channel;
2127 struct ndis_80211_ssid ssid;
2128 int pairwise = RNDIS_WLAN_ALG_NONE;
2129 int groupwise = RNDIS_WLAN_ALG_NONE;
2130 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2131 int length, i, ret, chan = -1;
2132
2133 if (channel)
2134 chan = ieee80211_frequency_to_channel(channel->center_freq);
2135
2136 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2137 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2138 pairwise |=
2139 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2140
2141 if (sme->crypto.n_ciphers_pairwise > 0 &&
2142 pairwise == RNDIS_WLAN_ALG_NONE) {
60b86755 2143 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
5c52323e
JK		 2144 return -ENOTSUPP;
2145 }
2146
2147 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2148 keymgmt |=
2149 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2150
2151 if (sme->crypto.n_akm_suites > 0 &&
2152 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
60b86755 2153 netdev_err(usbdev->net, "Invalid keymgmt\n");
5c52323e
JK		 2154 return -ENOTSUPP;
2155 }
2156
60b86755
JP		 2157 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2158 sme->ssid, sme->bssid, chan,
2159 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2160 groupwise, pairwise, keymgmt);
5c52323e
JK		 2161
2162 if (is_associated(usbdev))
2163 disassociate(usbdev, false);
2164
2165 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2166 if (ret < 0) {
60b86755
JP		 2167 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2168 ret);
5c52323e
JK		 2169 goto err_turn_radio_on;
2170 }
2171
2172 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2173 keymgmt);
2174 if (ret < 0) {
60b86755
JP		 2175 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2176 ret);
5c52323e
JK		 2177 goto err_turn_radio_on;
2178 }
2179
2180 set_priv_filter(usbdev);
2181
2182 ret = set_encr_mode(usbdev, pairwise, groupwise);
2183 if (ret < 0) {
60b86755
JP		 2184 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2185 ret);
5c52323e
JK		 2186 goto err_turn_radio_on;
2187 }
2188
2189 if (channel) {
2190 ret = set_channel(usbdev, chan);
2191 if (ret < 0) {
60b86755
JP		 2192 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2193 ret);
5c52323e
JK		 2194 goto err_turn_radio_on;
2195 }
2196 }
2197
2198 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2199 priv->encr_tx_key_index = sme->key_idx;
2200 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2201 if (ret < 0) {
60b86755
JP		 2202 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2203 ret, sme->key_len, sme->key_idx);
5c52323e
JK		 2204 goto err_turn_radio_on;
2205 }
2206 }
2207
2208 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2209 !is_broadcast_ether_addr(sme->bssid)) {
2210 ret = set_bssid(usbdev, sme->bssid);
2211 if (ret < 0) {
60b86755
JP		 2212 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2213 ret);
5c52323e
JK		 2214 goto err_turn_radio_on;
2215 }
2216 } else
2217 clear_bssid(usbdev);
2218
2219 length = sme->ssid_len;
2220 if (length > NDIS_802_11_LENGTH_SSID)
2221 length = NDIS_802_11_LENGTH_SSID;
2222
2223 memset(&ssid, 0, sizeof(ssid));
2224 ssid.length = cpu_to_le32(length);
2225 memcpy(ssid.essid, sme->ssid, length);
2226
2227 /* Pause and purge rx queue, so we don't pass packets before
2228 * 'media connect'-indication.
2229 */
2230 usbnet_pause_rx(usbdev);
2231 usbnet_purge_paused_rxq(usbdev);
2232
2233 ret = set_essid(usbdev, &ssid);
2234 if (ret < 0)
60b86755 2235 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
5c52323e
JK		 2236 return ret;
2237
2238err_turn_radio_on:
051ae0bf 2239 disassociate(usbdev, true);
5c52323e
JK		 2240
2241 return ret;
2242}
2243
2244static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2245 u16 reason_code)
2246{
2247 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2248 struct usbnet *usbdev = priv->usbdev;
2249
60b86755 2250 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
5c52323e
JK		 2251
2252 priv->connected = false;
8b89a288 2253 memset(priv->bssid, 0, ETH_ALEN);
5c52323e
JK		 2254
2255 return deauthenticate(usbdev);
2256}
2257
2258static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2259 struct cfg80211_ibss_params *params)
2260{
2261 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2262 struct usbnet *usbdev = priv->usbdev;
2263 struct ieee80211_channel *channel = params->channel;
2264 struct ndis_80211_ssid ssid;
2265 enum nl80211_auth_type auth_type;
2266 int ret, alg, length, chan = -1;
2267
2268 if (channel)
2269 chan = ieee80211_frequency_to_channel(channel->center_freq);
2270
2271 /* TODO: How to handle ad-hoc encryption?
2272 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2273 * pre-shared for encryption (open/shared/wpa), is key set before
2274 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2275 */
2276 if (params->privacy) {
2277 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2278 alg = RNDIS_WLAN_ALG_WEP;
2279 } else {
2280 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2281 alg = RNDIS_WLAN_ALG_NONE;
2282 }
2283
60b86755
JP		 2284 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2285 params->ssid, params->bssid, chan, params->privacy);
5c52323e
JK		 2286
2287 if (is_associated(usbdev))
2288 disassociate(usbdev, false);
2289
2290 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2291 if (ret < 0) {
60b86755
JP		 2292 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2293 ret);
5c52323e
JK		 2294 goto err_turn_radio_on;
2295 }
2296
2297 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2298 if (ret < 0) {
60b86755
JP		 2299 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2300 ret);
5c52323e
JK		 2301 goto err_turn_radio_on;
2302 }
2303
2304 set_priv_filter(usbdev);
2305
2306 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2307 if (ret < 0) {
60b86755
JP		 2308 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2309 ret);
5c52323e
JK		 2310 goto err_turn_radio_on;
2311 }
2312
2313 if (channel) {
2314 ret = set_channel(usbdev, chan);
2315 if (ret < 0) {
60b86755
JP		 2316 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2317 ret);
5c52323e
JK		 2318 goto err_turn_radio_on;
2319 }
2320 }
2321
2322 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2323 !is_broadcast_ether_addr(params->bssid)) {
2324 ret = set_bssid(usbdev, params->bssid);
2325 if (ret < 0) {
60b86755
JP		 2326 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2327 ret);
5c52323e
JK		 2328 goto err_turn_radio_on;
2329 }
2330 } else
2331 clear_bssid(usbdev);
2332
2333 length = params->ssid_len;
2334 if (length > NDIS_802_11_LENGTH_SSID)
2335 length = NDIS_802_11_LENGTH_SSID;
2336
2337 memset(&ssid, 0, sizeof(ssid));
2338 ssid.length = cpu_to_le32(length);
2339 memcpy(ssid.essid, params->ssid, length);
2340
2341 /* Don't need to pause rx queue for ad-hoc. */
2342 usbnet_purge_paused_rxq(usbdev);
2343 usbnet_resume_rx(usbdev);
2344
2345 ret = set_essid(usbdev, &ssid);
2346 if (ret < 0)
60b86755
JP		 2347 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2348 ret);
5c52323e
JK		 2349 return ret;
2350
2351err_turn_radio_on:
051ae0bf 2352 disassociate(usbdev, true);
5c52323e
JK		 2353
2354 return ret;
2355}
2356
2357static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2358{
2359 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2360 struct usbnet *usbdev = priv->usbdev;
2361
60b86755 2362 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
5c52323e
JK		 2363
2364 priv->connected = false;
8b89a288 2365 memset(priv->bssid, 0, ETH_ALEN);
5c52323e
JK		 2366
2367 return deauthenticate(usbdev);
2368}
2369
f444de05 2370static int rndis_set_channel(struct wiphy *wiphy, struct net_device *netdev,
5554adbe
JK		 2371 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2372{
2373 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2374 struct usbnet *usbdev = priv->usbdev;
2375
2376 return set_channel(usbdev,
2377 ieee80211_frequency_to_channel(chan->center_freq));
2378}
71a7b26d 2379
84bf8400 2380static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
e31b8213
JB		 2381 u8 key_index, bool pairwise, const u8 *mac_addr,
2382 struct key_params *params)
84bf8400
JK		 2383{
2384 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2385 struct usbnet *usbdev = priv->usbdev;
53d27eaf 2386 __le32 flags;
84bf8400 2387
60b86755
JP		 2388 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2389 __func__, key_index, mac_addr, params->cipher);
84bf8400
JK		 2390
2391 switch (params->cipher) {
2392 case WLAN_CIPHER_SUITE_WEP40:
2393 case WLAN_CIPHER_SUITE_WEP104:
2394 return add_wep_key(usbdev, params->key, params->key_len,
2395 key_index);
2396 case WLAN_CIPHER_SUITE_TKIP:
2397 case WLAN_CIPHER_SUITE_CCMP:
2398 flags = 0;
2399
2400 if (params->seq && params->seq_len > 0)
2401 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2402 if (mac_addr)
2403 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2404 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2405
2406 return add_wpa_key(usbdev, params->key, params->key_len,
2407 key_index, mac_addr, params->seq,
2408 params->seq_len, params->cipher, flags);
2409 default:
60b86755
JP		 2410 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2411 __func__, params->cipher);
84bf8400
JK		 2412 return -ENOTSUPP;
2413 }
2414}
2415
2416static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
e31b8213 2417 u8 key_index, bool pairwise, const u8 *mac_addr)
84bf8400
JK		 2418{
2419 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2420 struct usbnet *usbdev = priv->usbdev;
2421
60b86755 2422 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
84bf8400
JK		 2423
2424 return remove_key(usbdev, key_index, mac_addr);
2425}
2426
2427static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
dbd2fd65 2428 u8 key_index, bool unicast, bool multicast)
84bf8400
JK		 2429{
2430 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2431 struct usbnet *usbdev = priv->usbdev;
2432 struct rndis_wlan_encr_key key;
2433
60b86755 2434 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
84bf8400
JK		 2435
2436 priv->encr_tx_key_index = key_index;
2437
2438 key = priv->encr_keys[key_index];
2439
2440 return add_wep_key(usbdev, key.material, key.len, key_index);
2441}
2442
8b89a288
JK		 2443static void rndis_fill_station_info(struct usbnet *usbdev,
2444 struct station_info *sinfo)
2445{
2446 __le32 linkspeed, rssi;
2447 int ret, len;
2448
2449 memset(sinfo, 0, sizeof(*sinfo));
2450
2451 len = sizeof(linkspeed);
2452 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2453 if (ret == 0) {
2454 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2455 sinfo->filled |= STATION_INFO_TX_BITRATE;
2456 }
2457
2458 len = sizeof(rssi);
2459 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2460 if (ret == 0) {
2461 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2462 sinfo->filled |= STATION_INFO_SIGNAL;
2463 }
2464}
2465
2466static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2467 u8 *mac, struct station_info *sinfo)
2468{
2469 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2470 struct usbnet *usbdev = priv->usbdev;
2471
2472 if (compare_ether_addr(priv->bssid, mac))
2473 return -ENOENT;
2474
2475 rndis_fill_station_info(usbdev, sinfo);
2476
2477 return 0;
2478}
2479
d695df90
JK		 2480static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2481 int idx, u8 *mac, struct station_info *sinfo)
2482{
2483 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2484 struct usbnet *usbdev = priv->usbdev;
2485
2486 if (idx != 0)
2487 return -ENOENT;
2488
2489 memcpy(mac, priv->bssid, ETH_ALEN);
2490
2491 rndis_fill_station_info(usbdev, sinfo);
2492
2493 return 0;
2494}
2495
5a7d0583
JK		 2496static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2497 struct cfg80211_pmksa *pmksa)
2498{
2499 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2500 struct usbnet *usbdev = priv->usbdev;
2501 struct ndis_80211_pmkid *pmkids;
2502 u32 *tmp = (u32 *)pmksa->pmkid;
2503
2504 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2505 pmksa->bssid,
2506 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2507 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2508
2509 pmkids = get_device_pmkids(usbdev);
2510 if (IS_ERR(pmkids)) {
2511 /* couldn't read PMKID cache from device */
2512 return PTR_ERR(pmkids);
2513 }
2514
2515 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2516 if (IS_ERR(pmkids)) {
2517 /* not found, list full, etc */
2518 return PTR_ERR(pmkids);
2519 }
2520
2521 return set_device_pmkids(usbdev, pmkids);
2522}
2523
2524static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2525 struct cfg80211_pmksa *pmksa)
2526{
2527 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2528 struct usbnet *usbdev = priv->usbdev;
2529 struct ndis_80211_pmkid *pmkids;
2530 u32 *tmp = (u32 *)pmksa->pmkid;
2531
2532 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2533 pmksa->bssid,
2534 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2535 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2536
2537 pmkids = get_device_pmkids(usbdev);
2538 if (IS_ERR(pmkids)) {
2539 /* Couldn't read PMKID cache from device */
2540 return PTR_ERR(pmkids);
2541 }
2542
2543 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2544 if (IS_ERR(pmkids)) {
2545 /* not found, etc */
2546 return PTR_ERR(pmkids);
2547 }
2548
2549 return set_device_pmkids(usbdev, pmkids);
2550}
2551
2552static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2553{
2554 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2555 struct usbnet *usbdev = priv->usbdev;
2556 struct ndis_80211_pmkid pmkid;
2557
2558 netdev_dbg(usbdev->net, "%s()\n", __func__);
2559
2560 memset(&pmkid, 0, sizeof(pmkid));
2561
2562 pmkid.length = cpu_to_le32(sizeof(pmkid));
2563 pmkid.bssid_info_count = cpu_to_le32(0);
2564
2565 return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid));
2566}
2567
b5257c95
JK		 2568static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2569 struct ndis_80211_assoc_info *info)
2570{
2571 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2572 struct ieee80211_channel *channel;
2573 struct ndis_80211_conf config;
2574 struct ndis_80211_ssid ssid;
2575 s32 signal;
2576 u64 timestamp;
2577 u16 capability;
2578 u16 beacon_interval;
2579 __le32 rssi;
2580 u8 ie_buf[34];
2581 int len, ret, ie_len;
2582
2583 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2584 len = sizeof(rssi);
2585 rssi = 0;
458fafdd 2586 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
b5257c95
JK		 2587 signal = level_to_qual(le32_to_cpu(rssi));
2588
2589 netdev_dbg(usbdev->net, "%s(): OID_802_11_RSSI -> %d, "
2590 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2591 level_to_qual(le32_to_cpu(rssi)));
2592
2593 /* Get AP capabilities */
2594 if (info) {
2595 capability = le16_to_cpu(info->resp_ie.capa);
2596 } else {
2597 /* Set atleast ESS/IBSS capability */
2598 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2599 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2600 }
2601
2602 /* Get channel and beacon interval */
2603 len = sizeof(config);
2604 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2605 netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n",
2606 __func__, ret);
2607 if (ret >= 0) {
2608 beacon_interval = le16_to_cpu(config.beacon_period);
2609 channel = ieee80211_get_channel(priv->wdev.wiphy,
2610 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
2611 if (!channel) {
2612 netdev_warn(usbdev->net, "%s(): could not get channel."
2613 "\n", __func__);
2614 return;
2615 }
2616 } else {
2617 netdev_warn(usbdev->net, "%s(): could not get configuration.\n",
2618 __func__);
2619 return;
2620 }
2621
2622 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2623 len = sizeof(ssid);
2624 memset(&ssid, 0, sizeof(ssid));
2625 ret = rndis_query_oid(usbdev, OID_802_11_SSID, &ssid, &len);
2626 netdev_dbg(usbdev->net, "%s(): OID_802_11_SSID -> %d, len: %d, ssid: "
2627 "'%.32s'\n", __func__, ret,
2628 le32_to_cpu(ssid.length), ssid.essid);
2629
2630 if (le32_to_cpu(ssid.length) > 32)
2631 ssid.length = cpu_to_le32(32);
2632
2633 ie_buf[0] = WLAN_EID_SSID;
2634 ie_buf[1] = le32_to_cpu(ssid.length);
2635 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2636
2637 ie_len = le32_to_cpu(ssid.length) + 2;
2638
2639 /* no tsf */
2640 timestamp = 0;
2641
2642 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2643 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2644 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2645 bssid, (u32)timestamp, capability, beacon_interval, ie_len,
2646 ssid.essid, signal);
2647
2648 cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2649 timestamp, capability, beacon_interval, ie_buf, ie_len,
2650 signal, GFP_KERNEL);
2651}
2652
c5c4fe90
JK		 2653/*
2654 * workers, indication handlers, device poller
2655 */
0848e6c6 2656static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
bf164cc0 2657{
5c52323e 2658 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3d1ca47e 2659 struct ndis_80211_assoc_info *info = NULL;
0848e6c6 2660 u8 bssid[ETH_ALEN];
5c52323e
JK		 2661 int resp_ie_len, req_ie_len;
2662 u8 *req_ie, *resp_ie;
4364623c 2663 int ret, offset;
5c52323e 2664 bool roamed = false;
b5257c95 2665 bool match_bss;
bf164cc0 2666
5c52323e
JK		 2667 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2668 /* received media connect indication while connected, either
2669 * device reassociated with same AP or roamed to new. */
2670 roamed = true;
2671 }
0848e6c6 2672
5c52323e
JK		 2673 req_ie_len = 0;
2674 resp_ie_len = 0;
2675 req_ie = NULL;
2676 resp_ie = NULL;
2677
2678 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
3d1ca47e
JK		 2679 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2680 if (!info) {
2681 /* No memory? Try resume work later */
2682 set_bit(WORK_LINK_UP, &priv->work_pending);
2683 queue_work(priv->workqueue, &priv->work);
2684 return;
2685 }
5c52323e 2686
3d1ca47e
JK		 2687 /* Get association info IEs from device. */
2688 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
5c52323e
JK		 2689 if (!ret) {
2690 req_ie_len = le32_to_cpu(info->req_ie_length);
2691 if (req_ie_len > 0) {
2692 offset = le32_to_cpu(info->offset_req_ies);
3d1ca47e
JK		 2693
2694 if (offset > CONTROL_BUFFER_SIZE)
2695 offset = CONTROL_BUFFER_SIZE;
2696
5c52323e 2697 req_ie = (u8 *)info + offset;
3d1ca47e
JK		 2698
2699 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2700 req_ie_len =
2701 CONTROL_BUFFER_SIZE - offset;
5c52323e
JK		 2702 }
2703
2704 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2705 if (resp_ie_len > 0) {
2706 offset = le32_to_cpu(info->offset_resp_ies);
3d1ca47e
JK		 2707
2708 if (offset > CONTROL_BUFFER_SIZE)
2709 offset = CONTROL_BUFFER_SIZE;
2710
5c52323e 2711 resp_ie = (u8 *)info + offset;
3d1ca47e
JK		 2712
2713 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2714 resp_ie_len =
2715 CONTROL_BUFFER_SIZE - offset;
5c52323e 2716 }
b5257c95
JK		 2717 } else {
2718 /* Since rndis_wlan_craft_connected_bss() might use info
2719 * later and expects info to contain valid data if
2720 * non-null, free info and set NULL here.
2721 */
2722 kfree(info);
2723 info = NULL;
4364623c 2724 }
5c52323e
JK		 2725 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2726 return;
4364623c 2727
5c52323e
JK		 2728 ret = get_bssid(usbdev, bssid);
2729 if (ret < 0)
2730 memset(bssid, 0, sizeof(bssid));
7834ddbc 2731
60b86755
JP		 2732 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2733 bssid, roamed ? " roamed" : "");
bf164cc0 2734
b5257c95 2735 /* Internal bss list in device should contain at least the currently
5c52323e
JK		 2736 * connected bss and we can get it to cfg80211 with
2737 * rndis_check_bssid_list().
b5257c95
JK		 2738 *
2739 * NDIS spec says: "If the device is associated, but the associated
2740 * BSSID is not in its BSSID scan list, then the driver must add an
2741 * entry for the BSSID at the end of the data that it returns in
2742 * response to query of OID_802_11_BSSID_LIST."
2743 *
2744 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
5c52323e 2745 */
b5257c95
JK		 2746 match_bss = false;
2747 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2748
2749 if (!is_zero_ether_addr(bssid) && !match_bss) {
2750 /* Couldn't get bss from device, we need to manually craft bss
2751 * for cfg80211.
2752 */
2753 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2754 }
5c52323e
JK		 2755
2756 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2757 if (!roamed)
2758 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2759 req_ie_len, resp_ie,
2760 resp_ie_len, 0, GFP_KERNEL);
2761 else
2762 cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len,
2763 resp_ie, resp_ie_len, GFP_KERNEL);
2764 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2765 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2766
3d1ca47e
JK		 2767 if (info != NULL)
2768 kfree(info);
2769
5c52323e 2770 priv->connected = true;
8b89a288 2771 memcpy(priv->bssid, bssid, ETH_ALEN);
6010ce07 2772
0848e6c6 2773 usbnet_resume_rx(usbdev);
5c52323e 2774 netif_carrier_on(usbdev->net);
0848e6c6
JK		 2775}
2776
2777static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2778{
b6411fc2 2779 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
0848e6c6 2780
b6411fc2
JK		 2781 if (priv->connected) {
2782 priv->connected = false;
2783 memset(priv->bssid, 0, ETH_ALEN);
2784
2785 deauthenticate(usbdev);
0848e6c6 2786
b6411fc2
JK		 2787 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2788 }
2789
2790 netif_carrier_off(usbdev->net);
0848e6c6
JK		 2791}
2792
2793static void rndis_wlan_worker(struct work_struct *work)
2794{
2795 struct rndis_wlan_private *priv =
2796 container_of(work, struct rndis_wlan_private, work);
2797 struct usbnet *usbdev = priv->usbdev;
2798
2799 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2800 rndis_wlan_do_link_up_work(usbdev);
2801
2802 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2803 rndis_wlan_do_link_down_work(usbdev);
2804
bf164cc0
JK		 2805 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2806 set_multicast_list(usbdev);
2807}
2808
582241a0 2809static void rndis_wlan_set_multicast_list(struct net_device *dev)
bf164cc0 2810{
524ad0a7 2811 struct usbnet *usbdev = netdev_priv(dev);
582241a0 2812 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 2813
a67edb9e
JK		 2814 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2815 return;
2816
bf164cc0
JK		 2817 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2818 queue_work(priv->workqueue, &priv->work);
2819}
2820
030645ac
JK		 2821static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2822 struct ndis_80211_status_indication *indication,
2823 int len)
2824{
2825 u8 *buf;
2826 const char *type;
a0f9ce2a 2827 int flags, buflen, key_id;
030645ac
JK		 2828 bool pairwise_error, group_error;
2829 struct ndis_80211_auth_request *auth_req;
a0f9ce2a 2830 enum nl80211_key_type key_type;
030645ac
JK		 2831
2832 /* must have at least one array entry */
2833 if (len < offsetof(struct ndis_80211_status_indication, u) +
2834 sizeof(struct ndis_80211_auth_request)) {
60b86755
JP		 2835 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2836 len);
030645ac
JK		 2837 return;
2838 }
2839
2840 buf = (void *)&indication->u.auth_request[0];
2841 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2842
2843 while (buflen >= sizeof(*auth_req)) {
2844 auth_req = (void *)buf;
2845 type = "unknown";
2846 flags = le32_to_cpu(auth_req->flags);
2847 pairwise_error = false;
2848 group_error = false;
2849
2850 if (flags & 0x1)
2851 type = "reauth request";
2852 if (flags & 0x2)
2853 type = "key update request";
2854 if (flags & 0x6) {
2855 pairwise_error = true;
2856 type = "pairwise_error";
2857 }
2858 if (flags & 0xe) {
2859 group_error = true;
2860 type = "group_error";
2861 }
2862
60b86755
JP		 2863 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2864 type, le32_to_cpu(auth_req->flags));
030645ac 2865
a0f9ce2a
JK		 2866 if (pairwise_error) {
2867 key_type = NL80211_KEYTYPE_PAIRWISE;
2868 key_id = -1;
030645ac 2869
a0f9ce2a
JK		 2870 cfg80211_michael_mic_failure(usbdev->net,
2871 auth_req->bssid,
2872 key_type, key_id, NULL,
2873 GFP_KERNEL);
2874 }
030645ac 2875
a0f9ce2a
JK		 2876 if (group_error) {
2877 key_type = NL80211_KEYTYPE_GROUP;
2878 key_id = -1;
030645ac 2879
a0f9ce2a
JK		 2880 cfg80211_michael_mic_failure(usbdev->net,
2881 auth_req->bssid,
2882 key_type, key_id, NULL,
2883 GFP_KERNEL);
030645ac
JK		 2884 }
2885
2886 buflen -= le32_to_cpu(auth_req->length);
2887 buf += le32_to_cpu(auth_req->length);
2888 }
2889}
2890
2891static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2892 struct ndis_80211_status_indication *indication,
2893 int len)
2894{
2895 struct ndis_80211_pmkid_cand_list *cand_list;
2896 int list_len, expected_len, i;
2897
2898 if (len < offsetof(struct ndis_80211_status_indication, u) +
2899 sizeof(struct ndis_80211_pmkid_cand_list)) {
60b86755
JP		 2900 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2901 len);
030645ac
JK		 2902 return;
2903 }
2904
2905 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2906 sizeof(struct ndis_80211_pmkid_candidate);
2907 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2908 offsetof(struct ndis_80211_status_indication, u);
2909
2910 if (len < expected_len) {
60b86755
JP		 2911 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2912 len, expected_len);
030645ac
JK		 2913 return;
2914 }
2915
2916 cand_list = &indication->u.cand_list;
2917
60b86755
JP		 2918 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2919 le32_to_cpu(cand_list->version),
2920 le32_to_cpu(cand_list->num_candidates));
030645ac
JK		 2921
2922 if (le32_to_cpu(cand_list->version) != 1)
2923 return;
2924
2925 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
030645ac
JK		 2926 struct ndis_80211_pmkid_candidate *cand =
2927 &cand_list->candidate_list[i];
2928
60b86755
JP		 2929 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, bssid: %pM\n",
2930 i, le32_to_cpu(cand->flags), cand->bssid);
030645ac 2931
21ec2d8d
JK		 2932#if 0
2933 struct iw_pmkid_cand pcand;
2934 union iwreq_data wrqu;
2935
030645ac
JK		 2936 memset(&pcand, 0, sizeof(pcand));
2937 if (le32_to_cpu(cand->flags) & 0x01)
2938 pcand.flags |= IW_PMKID_CAND_PREAUTH;
2939 pcand.index = i;
2940 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2941
2942 memset(&wrqu, 0, sizeof(wrqu));
2943 wrqu.data.length = sizeof(pcand);
2944 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2945 (u8 *)&pcand);
21ec2d8d 2946#endif
030645ac
JK		 2947 }
2948}
2949
2950static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2951 struct rndis_indicate *msg, int buflen)
2952{
2953 struct ndis_80211_status_indication *indication;
2954 int len, offset;
2955
2956 offset = offsetof(struct rndis_indicate, status) +
2957 le32_to_cpu(msg->offset);
2958 len = le32_to_cpu(msg->length);
2959
2960 if (len < 8) {
60b86755
JP		 2961 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
2962 len);
030645ac
JK		 2963 return;
2964 }
2965
2966 if (offset + len > buflen) {
60b86755
JP		 2967 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
2968 offset + len, buflen);
030645ac
JK		 2969 return;
2970 }
2971
2972 indication = (void *)((u8 *)msg + offset);
2973
2974 switch (le32_to_cpu(indication->status_type)) {
2975 case NDIS_80211_STATUSTYPE_RADIOSTATE:
60b86755
JP		 2976 netdev_info(usbdev->net, "radio state indication: %i\n",
2977 le32_to_cpu(indication->u.radio_status));
030645ac
JK		 2978 return;
2979
2980 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
60b86755
JP		 2981 netdev_info(usbdev->net, "media stream mode indication: %i\n",
2982 le32_to_cpu(indication->u.media_stream_mode));
030645ac
JK		 2983 return;
2984
2985 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2986 rndis_wlan_auth_indication(usbdev, indication, len);
2987 return;
2988
2989 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2990 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2991 return;
2992
2993 default:
60b86755
JP		 2994 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
2995 le32_to_cpu(indication->status_type));
030645ac
JK		 2996 }
2997}
2998
2a4901bc 2999static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
bf164cc0 3000{
582241a0 3001 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2a4901bc 3002 struct rndis_indicate *msg = ind;
bf164cc0 3003
2a4901bc
JK		 3004 switch (msg->status) {
3005 case RNDIS_STATUS_MEDIA_CONNECT:
5f81ff5a
JK		 3006 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
3007 /* OID_802_11_ADD_KEY causes sometimes extra
3008 * "media connect" indications which confuses driver
3009 * and userspace to think that device is
3010 * roaming/reassociating when it isn't.
3011 */
60b86755 3012 netdev_dbg(usbdev->net, "ignored OID_802_11_ADD_KEY triggered 'media connect'\n");
5f81ff5a
JK		 3013 return;
3014 }
3015
7834ddbc
JK		 3016 usbnet_pause_rx(usbdev);
3017
60b86755 3018 netdev_info(usbdev->net, "media connect\n");
2a4901bc 3019
030645ac 3020 /* queue work to avoid recursive calls into rndis_command */
2a4901bc
JK		 3021 set_bit(WORK_LINK_UP, &priv->work_pending);
3022 queue_work(priv->workqueue, &priv->work);
3023 break;
3024
3025 case RNDIS_STATUS_MEDIA_DISCONNECT:
60b86755 3026 netdev_info(usbdev->net, "media disconnect\n");
2a4901bc 3027
030645ac 3028 /* queue work to avoid recursive calls into rndis_command */
2a4901bc
JK		 3029 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3030 queue_work(priv->workqueue, &priv->work);
3031 break;
3032
030645ac
JK		 3033 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3034 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3035 break;
3036
2a4901bc 3037 default:
60b86755
JP		 3038 netdev_info(usbdev->net, "indication: 0x%08x\n",
3039 le32_to_cpu(msg->status));
2a4901bc
JK		 3040 break;
3041 }
bf164cc0
JK		 3042}
3043
0308383f 3044static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
bf164cc0
JK		 3045{
3046 struct {
3047 __le32 num_items;
3048 __le32 items[8];
3049 } networks_supported;
0308383f
JK		 3050 struct ndis_80211_capability *caps;
3051 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
bf164cc0 3052 int len, retval, i, n;
582241a0 3053 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 3054
bf164cc0
JK		 3055 /* determine supported modes */
3056 len = sizeof(networks_supported);
a19d7292 3057 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
bf164cc0
JK		 3058 &networks_supported, &len);
3059 if (retval >= 0) {
3060 n = le32_to_cpu(networks_supported.num_items);
3061 if (n > 8)
3062 n = 8;
3063 for (i = 0; i < n; i++) {
3064 switch (le32_to_cpu(networks_supported.items[i])) {
aa18294a
JK		 3065 case NDIS_80211_TYPE_FREQ_HOP:
3066 case NDIS_80211_TYPE_DIRECT_SEQ:
bf164cc0
JK		 3067 priv->caps |= CAP_MODE_80211B;
3068 break;
aa18294a 3069 case NDIS_80211_TYPE_OFDM_A:
bf164cc0
JK		 3070 priv->caps |= CAP_MODE_80211A;
3071 break;
aa18294a 3072 case NDIS_80211_TYPE_OFDM_G:
bf164cc0
JK		 3073 priv->caps |= CAP_MODE_80211G;
3074 break;
3075 }
3076 }
bf164cc0
JK		 3077 }
3078
0308383f
JK		 3079 /* get device 802.11 capabilities, number of PMKIDs */
3080 caps = (struct ndis_80211_capability *)caps_buf;
3081 len = sizeof(caps_buf);
3082 retval = rndis_query_oid(usbdev, OID_802_11_CAPABILITY, caps, &len);
3083 if (retval >= 0) {
3084 netdev_dbg(usbdev->net, "OID_802_11_CAPABILITY -> len %d, "
3085 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3086 le32_to_cpu(caps->length),
3087 le32_to_cpu(caps->version),
3088 le32_to_cpu(caps->num_pmkids),
3089 le32_to_cpu(caps->num_auth_encr_pair));
3090 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3091 } else
3092 wiphy->max_num_pmkids = 0;
3093
bf164cc0
JK		 3094 return retval;
3095}
3096
305e243e
JK		 3097#define DEVICE_POLLER_JIFFIES (HZ)
3098static void rndis_device_poller(struct work_struct *work)
bf164cc0 3099{
582241a0 3100 struct rndis_wlan_private *priv =
305e243e
JK		 3101 container_of(work, struct rndis_wlan_private,
3102 dev_poller_work.work);
bf164cc0 3103 struct usbnet *usbdev = priv->usbdev;
bf164cc0 3104 __le32 rssi, tmp;
a97b1f3d 3105 int len, ret, j;
305e243e 3106 int update_jiffies = DEVICE_POLLER_JIFFIES;
bf164cc0
JK		 3107 void *buf;
3108
8b89a288
JK		 3109 /* Only check/do workaround when connected. Calling is_associated()
3110 * also polls device with rndis_command() and catches for media link
3111 * indications.
3112 */
5cb56af2
JK		 3113 if (!is_associated(usbdev)) {
3114 /* Workaround bad scanning in BCM4320a devices with active
3115 * background scanning when not associated.
3116 */
3117 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3118 !priv->scan_request) {
3119 /* Get previous scan results */
3120 rndis_check_bssid_list(usbdev, NULL, NULL);
3121
3122 /* Initiate new scan */
3123 rndis_start_bssid_list_scan(usbdev);
3124 }
3125
bf164cc0 3126 goto end;
5cb56af2 3127 }
bf164cc0
JK		 3128
3129 len = sizeof(rssi);
3130 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
8b89a288
JK		 3131 if (ret == 0)
3132 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
bf164cc0 3133
60b86755
JP		 3134 netdev_dbg(usbdev->net, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3135 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
bf164cc0 3136
a97b1f3d
JK		 3137 /* Workaround transfer stalls on poor quality links.
3138 * TODO: find right way to fix these stalls (as stalls do not happen
3139 * with ndiswrapper/windows driver). */
77593ae2 3140 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
bf164cc0
JK		 3141 /* Decrease stats worker interval to catch stalls.
3142 * faster. Faster than 400-500ms causes packet loss,
3143 * Slower doesn't catch stalls fast enough.
3144 */
3145 j = msecs_to_jiffies(priv->param_workaround_interval);
305e243e
JK		 3146 if (j > DEVICE_POLLER_JIFFIES)
3147 j = DEVICE_POLLER_JIFFIES;
bf164cc0
JK		 3148 else if (j <= 0)
3149 j = 1;
3150 update_jiffies = j;
3151
3152 /* Send scan OID. Use of both OIDs is required to get device
3153 * working.
3154 */
35c26c2c 3155 tmp = cpu_to_le32(1);
bf164cc0
JK		 3156 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
3157 sizeof(tmp));
3158
3159 len = CONTROL_BUFFER_SIZE;
3160 buf = kmalloc(len, GFP_KERNEL);
3161 if (!buf)
3162 goto end;
3163
3164 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
3165 kfree(buf);
3166 }
bf164cc0 3167
305e243e 3168end:
bf164cc0
JK		 3169 if (update_jiffies >= HZ)
3170 update_jiffies = round_jiffies_relative(update_jiffies);
3171 else {
3172 j = round_jiffies_relative(update_jiffies);
3173 if (abs(j - update_jiffies) <= 10)
3174 update_jiffies = j;
3175 }
3176
305e243e
JK		 3177 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3178 update_jiffies);
bf164cc0
JK		 3179}
3180
c5c4fe90
JK		 3181/*
3182 * driver/device initialization
3183 */
5cb56af2 3184static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
bf164cc0 3185{
582241a0 3186 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0 3187
5cb56af2
JK		 3188 priv->device_type = device_type;
3189
bf164cc0
JK		 3190 priv->param_country[0] = modparam_country[0];
3191 priv->param_country[1] = modparam_country[1];
3192 priv->param_country[2] = 0;
3193 priv->param_frameburst = modparam_frameburst;
3194 priv->param_afterburner = modparam_afterburner;
3195 priv->param_power_save = modparam_power_save;
3196 priv->param_power_output = modparam_power_output;
3197 priv->param_roamtrigger = modparam_roamtrigger;
3198 priv->param_roamdelta = modparam_roamdelta;
bf164cc0
JK		 3199
3200 priv->param_country[0] = toupper(priv->param_country[0]);
3201 priv->param_country[1] = toupper(priv->param_country[1]);
3202 /* doesn't support EU as country code, use FI instead */
3203 if (!strcmp(priv->param_country, "EU"))
3204 strcpy(priv->param_country, "FI");
3205
3206 if (priv->param_power_save < 0)
3207 priv->param_power_save = 0;
3208 else if (priv->param_power_save > 2)
3209 priv->param_power_save = 2;
3210
a7624837
JK		 3211 if (priv->param_power_output < 0)
3212 priv->param_power_output = 0;
3213 else if (priv->param_power_output > 3)
3214 priv->param_power_output = 3;
3215
bf164cc0
JK		 3216 if (priv->param_roamtrigger < -80)
3217 priv->param_roamtrigger = -80;
3218 else if (priv->param_roamtrigger > -60)
3219 priv->param_roamtrigger = -60;
3220
3221 if (priv->param_roamdelta < 0)
3222 priv->param_roamdelta = 0;
3223 else if (priv->param_roamdelta > 2)
3224 priv->param_roamdelta = 2;
3225
4d381ffb 3226 if (modparam_workaround_interval < 0)
bf164cc0 3227 priv->param_workaround_interval = 500;
4d381ffb
RK		 3228 else
3229 priv->param_workaround_interval = modparam_workaround_interval;
cef6e912
JK		 3230}
3231
5cb56af2
JK		 3232static int unknown_early_init(struct usbnet *usbdev)
3233{
3234 /* copy module parameters for unknown so that iwconfig reports txpower
3235 * and workaround parameter is copied to private structure correctly.
3236 */
3237 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3238
3239 /* This is unknown device, so do not try set configuration parameters.
3240 */
3241
3242 return 0;
3243}
3244
cef6e912
JK		 3245static int bcm4320a_early_init(struct usbnet *usbdev)
3246{
6e850af5
JK		 3247 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3248 * and workaround parameter is copied to private structure correctly.
3249 */
5cb56af2 3250 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
6e850af5 3251
cef6e912
JK		 3252 /* bcm4320a doesn't handle configuration parameters well. Try
3253 * set any and you get partially zeroed mac and broken device.
3254 */
3255
3256 return 0;
3257}
3258
3259static int bcm4320b_early_init(struct usbnet *usbdev)
3260{
3261 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3262 char buf[8];
3263
5cb56af2 3264 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
cef6e912
JK		 3265
3266 /* Early initialization settings, setting these won't have effect
3267 * if called after generic_rndis_bind().
3268 */
bf164cc0 3269
a19d7292
JK		 3270 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3271 rndis_set_config_parameter_str(usbdev, "FrameBursting",
bf164cc0 3272 priv->param_frameburst ? "1" : "0");
a19d7292 3273 rndis_set_config_parameter_str(usbdev, "Afterburner",
bf164cc0
JK		 3274 priv->param_afterburner ? "1" : "0");
3275 sprintf(buf, "%d", priv->param_power_save);
a19d7292 3276 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
bf164cc0 3277 sprintf(buf, "%d", priv->param_power_output);
a19d7292 3278 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
bf164cc0 3279 sprintf(buf, "%d", priv->param_roamtrigger);
a19d7292 3280 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
bf164cc0 3281 sprintf(buf, "%d", priv->param_roamdelta);
a19d7292 3282 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
bf164cc0
JK		 3283
3284 return 0;
3285}
3286
23d12e2b 3287/* same as rndis_netdev_ops but with local multicast handler */
582241a0 3288static const struct net_device_ops rndis_wlan_netdev_ops = {
23d12e2b
DM		 3289 .ndo_open = usbnet_open,
3290 .ndo_stop = usbnet_stop,
3291 .ndo_start_xmit = usbnet_start_xmit,
3292 .ndo_tx_timeout = usbnet_tx_timeout,
3293 .ndo_set_mac_address = eth_mac_addr,
3294 .ndo_validate_addr = eth_validate_addr,
582241a0 3295 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
23d12e2b
DM		 3296};
3297
582241a0 3298static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
bf164cc0 3299{
5c8fa4f7 3300 struct wiphy *wiphy;
582241a0 3301 struct rndis_wlan_private *priv;
bf164cc0
JK		 3302 int retval, len;
3303 __le32 tmp;
3304
5c8fa4f7
JL		 3305 /* allocate wiphy and rndis private data
3306 * NOTE: We only support a single virtual interface, so wiphy
3307 * and wireless_dev are somewhat synonymous for this device.
3308 */
582241a0 3309 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
5c8fa4f7 3310 if (!wiphy)
bf164cc0
JK		 3311 return -ENOMEM;
3312
5c8fa4f7
JL		 3313 priv = wiphy_priv(wiphy);
3314 usbdev->net->ieee80211_ptr = &priv->wdev;
3315 priv->wdev.wiphy = wiphy;
3316 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3317
bf164cc0 3318 /* These have to be initialized before calling generic_rndis_bind().
582241a0 3319 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
bf164cc0 3320 */
a19d7292 3321 usbdev->driver_priv = priv;
a19d7292 3322 priv->usbdev = usbdev;
bf164cc0
JK		 3323
3324 mutex_init(&priv->command_lock);
bf164cc0 3325
8d4d99ae
JK		 3326 /* because rndis_command() sleeps we need to use workqueue */
3327 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
582241a0 3328 INIT_WORK(&priv->work, rndis_wlan_worker);
305e243e 3329 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
8d4d99ae
JK		 3330 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3331
bf164cc0 3332 /* try bind rndis_host */
a19d7292 3333 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
bf164cc0
JK		 3334 if (retval < 0)
3335 goto fail;
3336
3337 /* generic_rndis_bind set packet filter to multicast_all+
3338 * promisc mode which doesn't work well for our devices (device
3339 * picks up rssi to closest station instead of to access point).
3340 *
3341 * rndis_host wants to avoid all OID as much as possible
582241a0 3342 * so do promisc/multicast handling in rndis_wlan.
bf164cc0 3343 */
582241a0 3344 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
23d12e2b 3345
bf164cc0 3346 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
a19d7292 3347 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
bf164cc0
JK		 3348 sizeof(tmp));
3349
3350 len = sizeof(tmp);
a19d7292
JK		 3351 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
3352 &len);
bf164cc0
JK		 3353 priv->multicast_size = le32_to_cpu(tmp);
3354 if (retval < 0 || priv->multicast_size < 0)
3355 priv->multicast_size = 0;
3356 if (priv->multicast_size > 0)
a19d7292 3357 usbdev->net->flags |= IFF_MULTICAST;
bf164cc0 3358 else
a19d7292 3359 usbdev->net->flags &= ~IFF_MULTICAST;
bf164cc0 3360
5c8fa4f7
JL		 3361 /* fill-out wiphy structure and register w/ cfg80211 */
3362 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3363 wiphy->privid = rndis_wiphy_privid;
3364 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3365 | BIT(NL80211_IFTYPE_ADHOC);
3366 wiphy->max_scan_ssids = 1;
3367
4a7f13ee 3368 /* TODO: fill-out band/encr information based on priv->caps */
0308383f 3369 rndis_wlan_get_caps(usbdev, wiphy);
5c8fa4f7
JL		 3370
3371 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3372 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3373 priv->band.channels = priv->channels;
3374 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3375 priv->band.bitrates = priv->rates;
3376 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3377 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
4d2a369e 3378 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
5c8fa4f7 3379
4a7f13ee
JK		 3380 memcpy(priv->cipher_suites, rndis_cipher_suites,
3381 sizeof(rndis_cipher_suites));
3382 wiphy->cipher_suites = priv->cipher_suites;
3383 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3384
5c8fa4f7
JL		 3385 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3386
3387 if (wiphy_register(wiphy)) {
eb1a685e
JK		 3388 retval = -ENODEV;
3389 goto fail;
5c8fa4f7
JL		 3390 }
3391
a19d7292 3392 set_default_iw_params(usbdev);
bf164cc0 3393
d75ec2b7
JK		 3394 /* set default rts/frag */
3395 rndis_set_wiphy_params(wiphy,
3396 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3397
bf164cc0 3398 /* turn radio on */
051ae0bf
JK		 3399 priv->radio_on = true;
3400 disassociate(usbdev, true);
a19d7292 3401 netif_carrier_off(usbdev->net);
bf164cc0 3402
bf164cc0
JK		 3403 return 0;
3404
3405fail:
305e243e 3406 cancel_delayed_work_sync(&priv->dev_poller_work);
8d4d99ae
JK		 3407 cancel_delayed_work_sync(&priv->scan_work);
3408 cancel_work_sync(&priv->work);
3409 flush_workqueue(priv->workqueue);
3410 destroy_workqueue(priv->workqueue);
3411
eb1a685e 3412 wiphy_free(wiphy);
bf164cc0
JK		 3413 return retval;
3414}
3415
582241a0 3416static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
bf164cc0 3417{
582241a0 3418 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
bf164cc0
JK		 3419
3420 /* turn radio off */
051ae0bf 3421 disassociate(usbdev, false);
bf164cc0 3422
305e243e 3423 cancel_delayed_work_sync(&priv->dev_poller_work);
71a7b26d 3424 cancel_delayed_work_sync(&priv->scan_work);
bf164cc0
JK		 3425 cancel_work_sync(&priv->work);
3426 flush_workqueue(priv->workqueue);
3427 destroy_workqueue(priv->workqueue);
3428
a19d7292 3429 rndis_unbind(usbdev, intf);
5c8fa4f7
JL		 3430
3431 wiphy_unregister(priv->wdev.wiphy);
3432 wiphy_free(priv->wdev.wiphy);
bf164cc0
JK		 3433}
3434
582241a0 3435static int rndis_wlan_reset(struct usbnet *usbdev)
bf164cc0 3436{
110736de 3437 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
7eaab708 3438 int retval;
110736de 3439
60b86755 3440 netdev_dbg(usbdev->net, "%s()\n", __func__);
110736de 3441
7eaab708
JK		 3442 retval = rndis_reset(usbdev);
3443 if (retval)
60b86755 3444 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
7eaab708 3445
e5a11a82
JK		 3446 /* rndis_reset cleared multicast list, so restore here.
3447 (set_multicast_list() also turns on current packet filter) */
7eaab708
JK		 3448 set_multicast_list(usbdev);
3449
305e243e
JK		 3450 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3451 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
110736de 3452
a19d7292 3453 return deauthenticate(usbdev);
bf164cc0
JK		 3454}
3455
222ec50a
JK		 3456static int rndis_wlan_stop(struct usbnet *usbdev)
3457{
110736de
JK		 3458 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3459 int retval;
e5a11a82 3460 __le32 filter;
110736de 3461
60b86755 3462 netdev_dbg(usbdev->net, "%s()\n", __func__);
110736de 3463
051ae0bf 3464 retval = disassociate(usbdev, false);
110736de
JK		 3465
3466 priv->work_pending = 0;
305e243e 3467 cancel_delayed_work_sync(&priv->dev_poller_work);
110736de
JK		 3468 cancel_delayed_work_sync(&priv->scan_work);
3469 cancel_work_sync(&priv->work);
3470 flush_workqueue(priv->workqueue);
3471
005ba2f1
JK		 3472 if (priv->scan_request) {
3473 cfg80211_scan_done(priv->scan_request, true);
3474 priv->scan_request = NULL;
3475 }
3476
e5a11a82
JK		 3477 /* Set current packet filter zero to block receiving data packets from
3478 device. */
3479 filter = 0;
3480 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3481 sizeof(filter));
3482
110736de 3483 return retval;
222ec50a
JK		 3484}
3485
bf164cc0
JK		 3486static const struct driver_info bcm4320b_info = {
3487 .description = "Wireless RNDIS device, BCM4320b based",
1487cd5e
JK		 3488 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3489 FLAG_AVOID_UNLINK_URBS,
582241a0
JK		 3490 .bind = rndis_wlan_bind,
3491 .unbind = rndis_wlan_unbind,
bf164cc0
JK		 3492 .status = rndis_status,
3493 .rx_fixup = rndis_rx_fixup,
3494 .tx_fixup = rndis_tx_fixup,
582241a0 3495 .reset = rndis_wlan_reset,
222ec50a 3496 .stop = rndis_wlan_stop,
59620e9f 3497 .early_init = bcm4320b_early_init,
2a4901bc 3498 .indication = rndis_wlan_indication,
bf164cc0
JK		 3499};
3500
3501static const struct driver_info bcm4320a_info = {
3502 .description = "Wireless RNDIS device, BCM4320a based",
1487cd5e
JK		 3503 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3504 FLAG_AVOID_UNLINK_URBS,
582241a0
JK		 3505 .bind = rndis_wlan_bind,
3506 .unbind = rndis_wlan_unbind,
bf164cc0
JK		 3507 .status = rndis_status,
3508 .rx_fixup = rndis_rx_fixup,
3509 .tx_fixup = rndis_tx_fixup,
582241a0 3510 .reset = rndis_wlan_reset,
222ec50a 3511 .stop = rndis_wlan_stop,
59620e9f 3512 .early_init = bcm4320a_early_init,
2a4901bc 3513 .indication = rndis_wlan_indication,
bf164cc0
JK		 3514};
3515
582241a0 3516static const struct driver_info rndis_wlan_info = {
bf164cc0 3517 .description = "Wireless RNDIS device",
1487cd5e
JK		 3518 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3519 FLAG_AVOID_UNLINK_URBS,
582241a0
JK		 3520 .bind = rndis_wlan_bind,
3521 .unbind = rndis_wlan_unbind,
bf164cc0
JK		 3522 .status = rndis_status,
3523 .rx_fixup = rndis_rx_fixup,
3524 .tx_fixup = rndis_tx_fixup,
582241a0 3525 .reset = rndis_wlan_reset,
222ec50a 3526 .stop = rndis_wlan_stop,
5cb56af2 3527 .early_init = unknown_early_init,
2a4901bc 3528 .indication = rndis_wlan_indication,
bf164cc0
JK		 3529};
3530
3531/*-------------------------------------------------------------------------*/
3532
3533static const struct usb_device_id products [] = {
3534#define RNDIS_MASTER_INTERFACE \
3535 .bInterfaceClass = USB_CLASS_COMM, \
3536 .bInterfaceSubClass = 2 /* ACM */, \
3537 .bInterfaceProtocol = 0x0ff
3538
3539/* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3540 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3541 */
3542{
3543 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3544 | USB_DEVICE_ID_MATCH_DEVICE,
3545 .idVendor = 0x0411,
3546 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3547 RNDIS_MASTER_INTERFACE,
3548 .driver_info = (unsigned long) &bcm4320b_info,
3549}, {
3550 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3551 | USB_DEVICE_ID_MATCH_DEVICE,
3552 .idVendor = 0x0baf,
3553 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3554 RNDIS_MASTER_INTERFACE,
3555 .driver_info = (unsigned long) &bcm4320b_info,
3556}, {
3557 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3558 | USB_DEVICE_ID_MATCH_DEVICE,
3559 .idVendor = 0x050d,
3560 .idProduct = 0x011b, /* Belkin F5D7051 */
3561 RNDIS_MASTER_INTERFACE,
3562 .driver_info = (unsigned long) &bcm4320b_info,
3563}, {
3564 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3565 | USB_DEVICE_ID_MATCH_DEVICE,
3566 .idVendor = 0x1799, /* Belkin has two vendor ids */
3567 .idProduct = 0x011b, /* Belkin F5D7051 */
3568 RNDIS_MASTER_INTERFACE,
3569 .driver_info = (unsigned long) &bcm4320b_info,
3570}, {
3571 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3572 | USB_DEVICE_ID_MATCH_DEVICE,
3573 .idVendor = 0x13b1,
3574 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3575 RNDIS_MASTER_INTERFACE,
3576 .driver_info = (unsigned long) &bcm4320b_info,
3577}, {
3578 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3579 | USB_DEVICE_ID_MATCH_DEVICE,
3580 .idVendor = 0x13b1,
3581 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3582 RNDIS_MASTER_INTERFACE,
3583 .driver_info = (unsigned long) &bcm4320b_info,
3584}, {
3585 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3586 | USB_DEVICE_ID_MATCH_DEVICE,
3587 .idVendor = 0x0b05,
3588 .idProduct = 0x1717, /* Asus WL169gE */
3589 RNDIS_MASTER_INTERFACE,
3590 .driver_info = (unsigned long) &bcm4320b_info,
3591}, {
3592 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3593 | USB_DEVICE_ID_MATCH_DEVICE,
3594 .idVendor = 0x0a5c,
3595 .idProduct = 0xd11b, /* Eminent EM4045 */
3596 RNDIS_MASTER_INTERFACE,
3597 .driver_info = (unsigned long) &bcm4320b_info,
3598}, {
3599 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3600 | USB_DEVICE_ID_MATCH_DEVICE,
3601 .idVendor = 0x1690,
3602 .idProduct = 0x0715, /* BT Voyager 1055 */
3603 RNDIS_MASTER_INTERFACE,
3604 .driver_info = (unsigned long) &bcm4320b_info,
3605},
3606/* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3607 * parameters available, hardware probably contain older firmware version with
3608 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3609 */
3610{
3611 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3612 | USB_DEVICE_ID_MATCH_DEVICE,
3613 .idVendor = 0x13b1,
3614 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3615 RNDIS_MASTER_INTERFACE,
3616 .driver_info = (unsigned long) &bcm4320a_info,
3617}, {
3618 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3619 | USB_DEVICE_ID_MATCH_DEVICE,
3620 .idVendor = 0x0baf,
3621 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3622 RNDIS_MASTER_INTERFACE,
3623 .driver_info = (unsigned long) &bcm4320a_info,
3624}, {
3625 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3626 | USB_DEVICE_ID_MATCH_DEVICE,
3627 .idVendor = 0x0411,
3628 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3629 RNDIS_MASTER_INTERFACE,
3630 .driver_info = (unsigned long) &bcm4320a_info,
3631},
3632/* Generic Wireless RNDIS devices that we don't have exact
3633 * idVendor/idProduct/chip yet.
3634 */
3635{
3636 /* RNDIS is MSFT's un-official variant of CDC ACM */
3637 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
582241a0 3638 .driver_info = (unsigned long) &rndis_wlan_info,
bf164cc0
JK		 3639}, {
3640 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3641 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
582241a0 3642 .driver_info = (unsigned long) &rndis_wlan_info,
bf164cc0
JK		 3643},
3644 { }, // END
3645};
3646MODULE_DEVICE_TABLE(usb, products);
3647
3648static struct usb_driver rndis_wlan_driver = {
3649 .name = "rndis_wlan",
3650 .id_table = products,
3651 .probe = usbnet_probe,
3652 .disconnect = usbnet_disconnect,
3653 .suspend = usbnet_suspend,
3654 .resume = usbnet_resume,
3655};
3656
3657static int __init rndis_wlan_init(void)
3658{
3659 return usb_register(&rndis_wlan_driver);
3660}
3661module_init(rndis_wlan_init);
3662
3663static void __exit rndis_wlan_exit(void)
3664{
3665 usb_deregister(&rndis_wlan_driver);
3666}
3667module_exit(rndis_wlan_exit);
3668
3669MODULE_AUTHOR("Bjorge Dijkstra");
3670MODULE_AUTHOR("Jussi Kivilinna");
3671MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3672MODULE_LICENSE("GPL");
3673
Linux kernel - Deliverables
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