Pileus Git - ~andy/linux/blob - drivers/net/wireless/rndis_wlan.c

   1 /*
   2  * Driver for RNDIS based wireless USB devices.
   3  *
   4  * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
   5  * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
   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>
  40 #include <linux/ieee80211.h>
  41 #include <linux/if_arp.h>
  42 #include <linux/ctype.h>
  43 #include <linux/spinlock.h>
  44 #include <net/iw_handler.h>
  45 #include <net/cfg80211.h>
  46 #include <linux/usb/usbnet.h>
  47 #include <linux/usb/rndis_host.h>
  48
  49
  50 /* NOTE: All these are settings for Broadcom chipset */
  51 static char modparam_country[4] = "EU";
  52 module_param_string(country, modparam_country, 4, 0444);
  53 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
  54
  55 static int modparam_frameburst = 1;
  56 module_param_named(frameburst, modparam_frameburst, int, 0444);
  57 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
  58
  59 static int modparam_afterburner = 0;
  60 module_param_named(afterburner, modparam_afterburner, int, 0444);
  61 MODULE_PARM_DESC(afterburner,
  62         "enable afterburner aka '125 High Speed Mode' (default: off)");
  63
  64 static int modparam_power_save = 0;
  65 module_param_named(power_save, modparam_power_save, int, 0444);
  66 MODULE_PARM_DESC(power_save,
  67         "set power save mode: 0=off, 1=on, 2=fast (default: off)");
  68
  69 static int modparam_power_output = 3;
  70 module_param_named(power_output, modparam_power_output, int, 0444);
  71 MODULE_PARM_DESC(power_output,
  72         "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
  73
  74 static int modparam_roamtrigger = -70;
  75 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
  76 MODULE_PARM_DESC(roamtrigger,
  77         "set roaming dBm trigger: -80=optimize for distance, "
  78                                 "-60=bandwidth (default: -70)");
  79
  80 static int modparam_roamdelta = 1;
  81 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
  82 MODULE_PARM_DESC(roamdelta,
  83         "set roaming tendency: 0=aggressive, 1=moderate, "
  84                                 "2=conservative (default: moderate)");
  85
  86 static int modparam_workaround_interval = 500;
  87 module_param_named(workaround_interval, modparam_workaround_interval,
  88                                                         int, 0444);
  89 MODULE_PARM_DESC(workaround_interval,
  90         "set stall workaround interval in msecs (default: 500)");
  91
  92
  93 /* various RNDIS OID defs */
  94 #define OID_GEN_LINK_SPEED                      cpu_to_le32(0x00010107)
  95 #define OID_GEN_RNDIS_CONFIG_PARAMETER          cpu_to_le32(0x0001021b)
  96
  97 #define OID_GEN_XMIT_OK                         cpu_to_le32(0x00020101)
  98 #define OID_GEN_RCV_OK                          cpu_to_le32(0x00020102)
  99 #define OID_GEN_XMIT_ERROR                      cpu_to_le32(0x00020103)
 100 #define OID_GEN_RCV_ERROR                       cpu_to_le32(0x00020104)
 101 #define OID_GEN_RCV_NO_BUFFER                   cpu_to_le32(0x00020105)
 102
 103 #define OID_802_3_CURRENT_ADDRESS               cpu_to_le32(0x01010102)
 104 #define OID_802_3_MULTICAST_LIST                cpu_to_le32(0x01010103)
 105 #define OID_802_3_MAXIMUM_LIST_SIZE             cpu_to_le32(0x01010104)
 106
 107 #define OID_802_11_BSSID                        cpu_to_le32(0x0d010101)
 108 #define OID_802_11_SSID                         cpu_to_le32(0x0d010102)
 109 #define OID_802_11_INFRASTRUCTURE_MODE          cpu_to_le32(0x0d010108)
 110 #define OID_802_11_ADD_WEP                      cpu_to_le32(0x0d010113)
 111 #define OID_802_11_REMOVE_WEP                   cpu_to_le32(0x0d010114)
 112 #define OID_802_11_DISASSOCIATE                 cpu_to_le32(0x0d010115)
 113 #define OID_802_11_AUTHENTICATION_MODE          cpu_to_le32(0x0d010118)
 114 #define OID_802_11_PRIVACY_FILTER               cpu_to_le32(0x0d010119)
 115 #define OID_802_11_BSSID_LIST_SCAN              cpu_to_le32(0x0d01011a)
 116 #define OID_802_11_ENCRYPTION_STATUS            cpu_to_le32(0x0d01011b)
 117 #define OID_802_11_ADD_KEY                      cpu_to_le32(0x0d01011d)
 118 #define OID_802_11_REMOVE_KEY                   cpu_to_le32(0x0d01011e)
 119 #define OID_802_11_ASSOCIATION_INFORMATION      cpu_to_le32(0x0d01011f)
 120 #define OID_802_11_PMKID                        cpu_to_le32(0x0d010123)
 121 #define OID_802_11_NETWORK_TYPES_SUPPORTED      cpu_to_le32(0x0d010203)
 122 #define OID_802_11_NETWORK_TYPE_IN_USE          cpu_to_le32(0x0d010204)
 123 #define OID_802_11_TX_POWER_LEVEL               cpu_to_le32(0x0d010205)
 124 #define OID_802_11_RSSI                         cpu_to_le32(0x0d010206)
 125 #define OID_802_11_RSSI_TRIGGER                 cpu_to_le32(0x0d010207)
 126 #define OID_802_11_FRAGMENTATION_THRESHOLD      cpu_to_le32(0x0d010209)
 127 #define OID_802_11_RTS_THRESHOLD                cpu_to_le32(0x0d01020a)
 128 #define OID_802_11_SUPPORTED_RATES              cpu_to_le32(0x0d01020e)
 129 #define OID_802_11_CONFIGURATION                cpu_to_le32(0x0d010211)
 130 #define OID_802_11_BSSID_LIST                   cpu_to_le32(0x0d010217)
 131
 132
 133 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
 134 #define WL_NOISE        -96     /* typical noise level in dBm */
 135 #define WL_SIGMAX       -32     /* typical maximum signal level in dBm */
 136
 137
 138 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
 139  * based on wireless rndis) has default txpower of 13dBm.
 140  * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
 141  *  100% : 20 mW ~ 13dBm
 142  *   75% : 15 mW ~ 12dBm
 143  *   50% : 10 mW ~ 10dBm
 144  *   25% :  5 mW ~  7dBm
 145  */
 146 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
 147 #define BCM4320_DEFAULT_TXPOWER_DBM_75  12
 148 #define BCM4320_DEFAULT_TXPOWER_DBM_50  10
 149 #define BCM4320_DEFAULT_TXPOWER_DBM_25  7
 150
 151
 152 /* codes for "status" field of completion messages */
 153 #define RNDIS_STATUS_ADAPTER_NOT_READY          cpu_to_le32(0xc0010011)
 154 #define RNDIS_STATUS_ADAPTER_NOT_OPEN           cpu_to_le32(0xc0010012)
 155
 156
 157 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
 158  * slightly modified for datatype endianess, etc
 159  */
 160 #define NDIS_802_11_LENGTH_SSID 32
 161 #define NDIS_802_11_LENGTH_RATES 8
 162 #define NDIS_802_11_LENGTH_RATES_EX 16
 163
 164 enum ndis_80211_net_type {
 165         NDIS_80211_TYPE_FREQ_HOP,
 166         NDIS_80211_TYPE_DIRECT_SEQ,
 167         NDIS_80211_TYPE_OFDM_A,
 168         NDIS_80211_TYPE_OFDM_G
 169 };
 170
 171 enum ndis_80211_net_infra {
 172         NDIS_80211_INFRA_ADHOC,
 173         NDIS_80211_INFRA_INFRA,
 174         NDIS_80211_INFRA_AUTO_UNKNOWN
 175 };
 176
 177 enum ndis_80211_auth_mode {
 178         NDIS_80211_AUTH_OPEN,
 179         NDIS_80211_AUTH_SHARED,
 180         NDIS_80211_AUTH_AUTO_SWITCH,
 181         NDIS_80211_AUTH_WPA,
 182         NDIS_80211_AUTH_WPA_PSK,
 183         NDIS_80211_AUTH_WPA_NONE,
 184         NDIS_80211_AUTH_WPA2,
 185         NDIS_80211_AUTH_WPA2_PSK
 186 };
 187
 188 enum ndis_80211_encr_status {
 189         NDIS_80211_ENCR_WEP_ENABLED,
 190         NDIS_80211_ENCR_DISABLED,
 191         NDIS_80211_ENCR_WEP_KEY_ABSENT,
 192         NDIS_80211_ENCR_NOT_SUPPORTED,
 193         NDIS_80211_ENCR_TKIP_ENABLED,
 194         NDIS_80211_ENCR_TKIP_KEY_ABSENT,
 195         NDIS_80211_ENCR_CCMP_ENABLED,
 196         NDIS_80211_ENCR_CCMP_KEY_ABSENT
 197 };
 198
 199 enum ndis_80211_priv_filter {
 200         NDIS_80211_PRIV_ACCEPT_ALL,
 201         NDIS_80211_PRIV_8021X_WEP
 202 };
 203
 204 enum ndis_80211_status_type {
 205         NDIS_80211_STATUSTYPE_AUTHENTICATION,
 206         NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
 207         NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
 208         NDIS_80211_STATUSTYPE_RADIOSTATE,
 209 };
 210
 211 enum ndis_80211_media_stream_mode {
 212         NDIS_80211_MEDIA_STREAM_OFF,
 213         NDIS_80211_MEDIA_STREAM_ON
 214 };
 215
 216 enum ndis_80211_radio_status {
 217         NDIS_80211_RADIO_STATUS_ON,
 218         NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
 219         NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
 220 };
 221
 222 enum ndis_80211_addkey_bits {
 223         NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
 224         NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
 225         NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
 226         NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
 227 };
 228
 229 enum ndis_80211_addwep_bits {
 230         NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
 231         NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
 232 };
 233
 234 struct ndis_80211_auth_request {
 235         __le32 length;
 236         u8 bssid[6];
 237         u8 padding[2];
 238         __le32 flags;
 239 } __attribute__((packed));
 240
 241 struct ndis_80211_pmkid_candidate {
 242         u8 bssid[6];
 243         u8 padding[2];
 244         __le32 flags;
 245 } __attribute__((packed));
 246
 247 struct ndis_80211_pmkid_cand_list {
 248         __le32 version;
 249         __le32 num_candidates;
 250         struct ndis_80211_pmkid_candidate candidate_list[0];
 251 } __attribute__((packed));
 252
 253 struct ndis_80211_status_indication {
 254         __le32 status_type;
 255         union {
 256                 enum ndis_80211_media_stream_mode       media_stream_mode;
 257                 enum ndis_80211_radio_status            radio_status;
 258                 struct ndis_80211_auth_request          auth_request[0];
 259                 struct ndis_80211_pmkid_cand_list       cand_list;
 260         } u;
 261 } __attribute__((packed));
 262
 263 struct ndis_80211_ssid {
 264         __le32 length;
 265         u8 essid[NDIS_802_11_LENGTH_SSID];
 266 } __attribute__((packed));
 267
 268 struct ndis_80211_conf_freq_hop {
 269         __le32 length;
 270         __le32 hop_pattern;
 271         __le32 hop_set;
 272         __le32 dwell_time;
 273 } __attribute__((packed));
 274
 275 struct ndis_80211_conf {
 276         __le32 length;
 277         __le32 beacon_period;
 278         __le32 atim_window;
 279         __le32 ds_config;
 280         struct ndis_80211_conf_freq_hop fh_config;
 281 } __attribute__((packed));
 282
 283 struct ndis_80211_bssid_ex {
 284         __le32 length;
 285         u8 mac[6];
 286         u8 padding[2];
 287         struct ndis_80211_ssid ssid;
 288         __le32 privacy;
 289         __le32 rssi;
 290         __le32 net_type;
 291         struct ndis_80211_conf config;
 292         __le32 net_infra;
 293         u8 rates[NDIS_802_11_LENGTH_RATES_EX];
 294         __le32 ie_length;
 295         u8 ies[0];
 296 } __attribute__((packed));
 297
 298 struct ndis_80211_bssid_list_ex {
 299         __le32 num_items;
 300         struct ndis_80211_bssid_ex bssid[0];
 301 } __attribute__((packed));
 302
 303 struct ndis_80211_fixed_ies {
 304         u8 timestamp[8];
 305         __le16 beacon_interval;
 306         __le16 capabilities;
 307 } __attribute__((packed));
 308
 309 struct ndis_80211_wep_key {
 310         __le32 size;
 311         __le32 index;
 312         __le32 length;
 313         u8 material[32];
 314 } __attribute__((packed));
 315
 316 struct ndis_80211_key {
 317         __le32 size;
 318         __le32 index;
 319         __le32 length;
 320         u8 bssid[6];
 321         u8 padding[6];
 322         u8 rsc[8];
 323         u8 material[32];
 324 } __attribute__((packed));
 325
 326 struct ndis_80211_remove_key {
 327         __le32 size;
 328         __le32 index;
 329         u8 bssid[6];
 330         u8 padding[2];
 331 } __attribute__((packed));
 332
 333 struct ndis_config_param {
 334         __le32 name_offs;
 335         __le32 name_length;
 336         __le32 type;
 337         __le32 value_offs;
 338         __le32 value_length;
 339 } __attribute__((packed));
 340
 341 struct ndis_80211_assoc_info {
 342         __le32 length;
 343         __le16 req_ies;
 344         struct req_ie {
 345                 __le16 capa;
 346                 __le16 listen_interval;
 347                 u8 cur_ap_address[6];
 348         } req_ie;
 349         __le32 req_ie_length;
 350         __le32 offset_req_ies;
 351         __le16 resp_ies;
 352         struct resp_ie {
 353                 __le16 capa;
 354                 __le16 status_code;
 355                 __le16 assoc_id;
 356         } resp_ie;
 357         __le32 resp_ie_length;
 358         __le32 offset_resp_ies;
 359 } __attribute__((packed));
 360
 361 /* these have to match what is in wpa_supplicant */
 362 enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
 363 enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
 364                   CIPHER_WEP104 };
 365 enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE,
 366                     KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE };
 367
 368 /*
 369  *  private data
 370  */
 371 #define NET_TYPE_11FB   0
 372
 373 #define CAP_MODE_80211A         1
 374 #define CAP_MODE_80211B         2
 375 #define CAP_MODE_80211G         4
 376 #define CAP_MODE_MASK           7
 377
 378 #define WORK_LINK_UP            (1<<0)
 379 #define WORK_LINK_DOWN          (1<<1)
 380 #define WORK_SET_MULTICAST_LIST (1<<2)
 381
 382 #define COMMAND_BUFFER_SIZE     (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
 383
 384 static const struct ieee80211_channel rndis_channels[] = {
 385         { .center_freq = 2412 },
 386         { .center_freq = 2417 },
 387         { .center_freq = 2422 },
 388         { .center_freq = 2427 },
 389         { .center_freq = 2432 },
 390         { .center_freq = 2437 },
 391         { .center_freq = 2442 },
 392         { .center_freq = 2447 },
 393         { .center_freq = 2452 },
 394         { .center_freq = 2457 },
 395         { .center_freq = 2462 },
 396         { .center_freq = 2467 },
 397         { .center_freq = 2472 },
 398         { .center_freq = 2484 },
 399 };
 400
 401 static const struct ieee80211_rate rndis_rates[] = {
 402         { .bitrate = 10 },
 403         { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 404         { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 405         { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 406         { .bitrate = 60 },
 407         { .bitrate = 90 },
 408         { .bitrate = 120 },
 409         { .bitrate = 180 },
 410         { .bitrate = 240 },
 411         { .bitrate = 360 },
 412         { .bitrate = 480 },
 413         { .bitrate = 540 }
 414 };
 415
 416 static const u32 rndis_cipher_suites[] = {
 417         WLAN_CIPHER_SUITE_WEP40,
 418         WLAN_CIPHER_SUITE_WEP104,
 419         WLAN_CIPHER_SUITE_TKIP,
 420         WLAN_CIPHER_SUITE_CCMP,
 421 };
 422
 423 struct rndis_wlan_encr_key {
 424         int len;
 425         int cipher;
 426         u8 material[32];
 427         u8 bssid[ETH_ALEN];
 428         bool pairwise;
 429         bool tx_key;
 430 };
 431
 432 /* RNDIS device private data */
 433 struct rndis_wlan_private {
 434         struct usbnet *usbdev;
 435
 436         struct wireless_dev wdev;
 437
 438         struct cfg80211_scan_request *scan_request;
 439
 440         struct workqueue_struct *workqueue;
 441         struct delayed_work stats_work;
 442         struct delayed_work scan_work;
 443         struct work_struct work;
 444         struct mutex command_lock;
 445         spinlock_t stats_lock;
 446         unsigned long work_pending;
 447
 448         struct ieee80211_supported_band band;
 449         struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
 450         struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
 451         u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
 452
 453         struct iw_statistics iwstats;
 454         struct iw_statistics privstats;
 455
 456         int caps;
 457         int multicast_size;
 458
 459         /* module parameters */
 460         char param_country[4];
 461         int  param_frameburst;
 462         int  param_afterburner;
 463         int  param_power_save;
 464         int  param_power_output;
 465         int  param_roamtrigger;
 466         int  param_roamdelta;
 467         u32  param_workaround_interval;
 468
 469         /* hardware state */
 470         int radio_on;
 471         int infra_mode;
 472         struct ndis_80211_ssid essid;
 473         __le32 current_command_oid;
 474
 475         /* encryption stuff */
 476         int  encr_tx_key_index;
 477         struct rndis_wlan_encr_key encr_keys[4];
 478         int  wpa_version;
 479         int  wpa_keymgmt;
 480         int  wpa_authalg;
 481         int  wpa_ie_len;
 482         u8  *wpa_ie;
 483         int  wpa_cipher_pair;
 484         int  wpa_cipher_group;
 485
 486         u8 command_buffer[COMMAND_BUFFER_SIZE];
 487 };
 488
 489 /*
 490  * cfg80211 ops
 491  */
 492 static int rndis_change_virtual_intf(struct wiphy *wiphy,
 493                                         struct net_device *dev,
 494                                         enum nl80211_iftype type, u32 *flags,
 495                                         struct vif_params *params);
 496
 497 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
 498                         struct cfg80211_scan_request *request);
 499
 500 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
 501
 502 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
 503                                 int dbm);
 504 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
 505
 506 static struct cfg80211_ops rndis_config_ops = {
 507         .change_virtual_intf = rndis_change_virtual_intf,
 508         .scan = rndis_scan,
 509         .set_wiphy_params = rndis_set_wiphy_params,
 510         .set_tx_power = rndis_set_tx_power,
 511         .get_tx_power = rndis_get_tx_power,
 512 };
 513
 514 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
 515
 516
 517 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
 518 {
 519         return (struct rndis_wlan_private *)dev->driver_priv;
 520 }
 521
 522
 523 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
 524 {
 525         switch (priv->param_power_output) {
 526         default:
 527         case 3:
 528                 return BCM4320_DEFAULT_TXPOWER_DBM_100;
 529         case 2:
 530                 return BCM4320_DEFAULT_TXPOWER_DBM_75;
 531         case 1:
 532                 return BCM4320_DEFAULT_TXPOWER_DBM_50;
 533         case 0:
 534                 return BCM4320_DEFAULT_TXPOWER_DBM_25;
 535         }
 536 }
 537
 538
 539 static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
 540 {
 541         int cipher = priv->encr_keys[idx].cipher;
 542
 543         return (cipher == WLAN_CIPHER_SUITE_CCMP ||
 544                 cipher == WLAN_CIPHER_SUITE_TKIP);
 545 }
 546
 547
 548 #ifdef DEBUG
 549 static const char *oid_to_string(__le32 oid)
 550 {
 551         switch (oid) {
 552 #define OID_STR(oid) case oid: return(#oid)
 553                 /* from rndis_host.h */
 554                 OID_STR(OID_802_3_PERMANENT_ADDRESS);
 555                 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
 556                 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
 557                 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
 558
 559                 /* from rndis_wlan.c */
 560                 OID_STR(OID_GEN_LINK_SPEED);
 561                 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
 562
 563                 OID_STR(OID_GEN_XMIT_OK);
 564                 OID_STR(OID_GEN_RCV_OK);
 565                 OID_STR(OID_GEN_XMIT_ERROR);
 566                 OID_STR(OID_GEN_RCV_ERROR);
 567                 OID_STR(OID_GEN_RCV_NO_BUFFER);
 568
 569                 OID_STR(OID_802_3_CURRENT_ADDRESS);
 570                 OID_STR(OID_802_3_MULTICAST_LIST);
 571                 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
 572
 573                 OID_STR(OID_802_11_BSSID);
 574                 OID_STR(OID_802_11_SSID);
 575                 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
 576                 OID_STR(OID_802_11_ADD_WEP);
 577                 OID_STR(OID_802_11_REMOVE_WEP);
 578                 OID_STR(OID_802_11_DISASSOCIATE);
 579                 OID_STR(OID_802_11_AUTHENTICATION_MODE);
 580                 OID_STR(OID_802_11_PRIVACY_FILTER);
 581                 OID_STR(OID_802_11_BSSID_LIST_SCAN);
 582                 OID_STR(OID_802_11_ENCRYPTION_STATUS);
 583                 OID_STR(OID_802_11_ADD_KEY);
 584                 OID_STR(OID_802_11_REMOVE_KEY);
 585                 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
 586                 OID_STR(OID_802_11_PMKID);
 587                 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
 588                 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
 589                 OID_STR(OID_802_11_TX_POWER_LEVEL);
 590                 OID_STR(OID_802_11_RSSI);
 591                 OID_STR(OID_802_11_RSSI_TRIGGER);
 592                 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
 593                 OID_STR(OID_802_11_RTS_THRESHOLD);
 594                 OID_STR(OID_802_11_SUPPORTED_RATES);
 595                 OID_STR(OID_802_11_CONFIGURATION);
 596                 OID_STR(OID_802_11_BSSID_LIST);
 597 #undef OID_STR
 598         }
 599
 600         return "?";
 601 }
 602 #else
 603 static const char *oid_to_string(__le32 oid)
 604 {
 605         return "?";
 606 }
 607 #endif
 608
 609
 610 /* translate error code */
 611 static int rndis_error_status(__le32 rndis_status)
 612 {
 613         int ret = -EINVAL;
 614         switch (rndis_status) {
 615         case RNDIS_STATUS_SUCCESS:
 616                 ret = 0;
 617                 break;
 618         case RNDIS_STATUS_FAILURE:
 619         case RNDIS_STATUS_INVALID_DATA:
 620                 ret = -EINVAL;
 621                 break;
 622         case RNDIS_STATUS_NOT_SUPPORTED:
 623                 ret = -EOPNOTSUPP;
 624                 break;
 625         case RNDIS_STATUS_ADAPTER_NOT_READY:
 626         case RNDIS_STATUS_ADAPTER_NOT_OPEN:
 627                 ret = -EBUSY;
 628                 break;
 629         }
 630         return ret;
 631 }
 632
 633
 634 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
 635 {
 636         struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
 637         union {
 638                 void                    *buf;
 639                 struct rndis_msg_hdr    *header;
 640                 struct rndis_query      *get;
 641                 struct rndis_query_c    *get_c;
 642         } u;
 643         int ret, buflen;
 644
 645         buflen = *len + sizeof(*u.get);
 646         if (buflen < CONTROL_BUFFER_SIZE)
 647                 buflen = CONTROL_BUFFER_SIZE;
 648
 649         if (buflen > COMMAND_BUFFER_SIZE) {
 650                 u.buf = kmalloc(buflen, GFP_KERNEL);
 651                 if (!u.buf)
 652                         return -ENOMEM;
 653         } else {
 654                 u.buf = priv->command_buffer;
 655         }
 656
 657         mutex_lock(&priv->command_lock);
 658
 659         memset(u.get, 0, sizeof *u.get);
 660         u.get->msg_type = RNDIS_MSG_QUERY;
 661         u.get->msg_len = cpu_to_le32(sizeof *u.get);
 662         u.get->oid = oid;
 663
 664         priv->current_command_oid = oid;
 665         ret = rndis_command(dev, u.header, buflen);
 666         priv->current_command_oid = 0;
 667         if (ret < 0)
 668                 devdbg(dev, "rndis_query_oid(%s): rndis_command() failed, %d "
 669                         "(%08x)", oid_to_string(oid), ret,
 670                         le32_to_cpu(u.get_c->status));
 671
 672         if (ret == 0) {
 673                 ret = le32_to_cpu(u.get_c->len);
 674                 if (ret > *len)
 675                         *len = ret;
 676                 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
 677                 ret = rndis_error_status(u.get_c->status);
 678
 679                 if (ret < 0)
 680                         devdbg(dev, "rndis_query_oid(%s): device returned "
 681                                 "error,  0x%08x (%d)", oid_to_string(oid),
 682                                 le32_to_cpu(u.get_c->status), ret);
 683         }
 684
 685         mutex_unlock(&priv->command_lock);
 686
 687         if (u.buf != priv->command_buffer)
 688                 kfree(u.buf);
 689         return ret;
 690 }
 691
 692
 693 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
 694 {
 695         struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
 696         union {
 697                 void                    *buf;
 698                 struct rndis_msg_hdr    *header;
 699                 struct rndis_set        *set;
 700                 struct rndis_set_c      *set_c;
 701         } u;
 702         int ret, buflen;
 703
 704         buflen = len + sizeof(*u.set);
 705         if (buflen < CONTROL_BUFFER_SIZE)
 706                 buflen = CONTROL_BUFFER_SIZE;
 707
 708         if (buflen > COMMAND_BUFFER_SIZE) {
 709                 u.buf = kmalloc(buflen, GFP_KERNEL);
 710                 if (!u.buf)
 711                         return -ENOMEM;
 712         } else {
 713                 u.buf = priv->command_buffer;
 714         }
 715
 716         mutex_lock(&priv->command_lock);
 717
 718         memset(u.set, 0, sizeof *u.set);
 719         u.set->msg_type = RNDIS_MSG_SET;
 720         u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
 721         u.set->oid = oid;
 722         u.set->len = cpu_to_le32(len);
 723         u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
 724         u.set->handle = cpu_to_le32(0);
 725         memcpy(u.buf + sizeof(*u.set), data, len);
 726
 727         priv->current_command_oid = oid;
 728         ret = rndis_command(dev, u.header, buflen);
 729         priv->current_command_oid = 0;
 730         if (ret < 0)
 731                 devdbg(dev, "rndis_set_oid(%s): rndis_command() failed, %d "
 732                         "(%08x)", oid_to_string(oid), ret,
 733                         le32_to_cpu(u.set_c->status));
 734
 735         if (ret == 0) {
 736                 ret = rndis_error_status(u.set_c->status);
 737
 738                 if (ret < 0)
 739                         devdbg(dev, "rndis_set_oid(%s): device returned error, "
 740                                 "0x%08x (%d)", oid_to_string(oid),
 741                                 le32_to_cpu(u.set_c->status), ret);
 742         }
 743
 744         mutex_unlock(&priv->command_lock);
 745
 746         if (u.buf != priv->command_buffer)
 747                 kfree(u.buf);
 748         return ret;
 749 }
 750
 751
 752 static int rndis_reset(struct usbnet *usbdev)
 753 {
 754         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 755         struct rndis_reset *reset;
 756         int ret;
 757
 758         mutex_lock(&priv->command_lock);
 759
 760         reset = (void *)priv->command_buffer;
 761         memset(reset, 0, sizeof(*reset));
 762         reset->msg_type = RNDIS_MSG_RESET;
 763         reset->msg_len = cpu_to_le32(sizeof(*reset));
 764         priv->current_command_oid = 0;
 765         ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
 766
 767         mutex_unlock(&priv->command_lock);
 768
 769         if (ret < 0)
 770                 return ret;
 771         return 0;
 772 }
 773
 774
 775 /*
 776  * Specs say that we can only set config parameters only soon after device
 777  * initialization.
 778  *   value_type: 0 = u32, 2 = unicode string
 779  */
 780 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
 781                                                 int value_type, void *value)
 782 {
 783         struct ndis_config_param *infobuf;
 784         int value_len, info_len, param_len, ret, i;
 785         __le16 *unibuf;
 786         __le32 *dst_value;
 787
 788         if (value_type == 0)
 789                 value_len = sizeof(__le32);
 790         else if (value_type == 2)
 791                 value_len = strlen(value) * sizeof(__le16);
 792         else
 793                 return -EINVAL;
 794
 795         param_len = strlen(param) * sizeof(__le16);
 796         info_len = sizeof(*infobuf) + param_len + value_len;
 797
 798 #ifdef DEBUG
 799         info_len += 12;
 800 #endif
 801         infobuf = kmalloc(info_len, GFP_KERNEL);
 802         if (!infobuf)
 803                 return -ENOMEM;
 804
 805 #ifdef DEBUG
 806         info_len -= 12;
 807         /* extra 12 bytes are for padding (debug output) */
 808         memset(infobuf, 0xCC, info_len + 12);
 809 #endif
 810
 811         if (value_type == 2)
 812                 devdbg(dev, "setting config parameter: %s, value: %s",
 813                                                 param, (u8 *)value);
 814         else
 815                 devdbg(dev, "setting config parameter: %s, value: %d",
 816                                                 param, *(u32 *)value);
 817
 818         infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
 819         infobuf->name_length = cpu_to_le32(param_len);
 820         infobuf->type = cpu_to_le32(value_type);
 821         infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
 822         infobuf->value_length = cpu_to_le32(value_len);
 823
 824         /* simple string to unicode string conversion */
 825         unibuf = (void *)infobuf + sizeof(*infobuf);
 826         for (i = 0; i < param_len / sizeof(__le16); i++)
 827                 unibuf[i] = cpu_to_le16(param[i]);
 828
 829         if (value_type == 2) {
 830                 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
 831                 for (i = 0; i < value_len / sizeof(__le16); i++)
 832                         unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
 833         } else {
 834                 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
 835                 *dst_value = cpu_to_le32(*(u32 *)value);
 836         }
 837
 838 #ifdef DEBUG
 839         devdbg(dev, "info buffer (len: %d):", info_len);
 840         for (i = 0; i < info_len; i += 12) {
 841                 u32 *tmp = (u32 *)((u8 *)infobuf + i);
 842                 devdbg(dev, "%08X:%08X:%08X",
 843                         cpu_to_be32(tmp[0]),
 844                         cpu_to_be32(tmp[1]),
 845                         cpu_to_be32(tmp[2]));
 846         }
 847 #endif
 848
 849         ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
 850                                                         infobuf, info_len);
 851         if (ret != 0)
 852                 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
 853
 854         kfree(infobuf);
 855         return ret;
 856 }
 857
 858 static int rndis_set_config_parameter_str(struct usbnet *dev,
 859                                                 char *param, char *value)
 860 {
 861         return(rndis_set_config_parameter(dev, param, 2, value));
 862 }
 863
 864 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
 865                                                 char *param, u32 value)
 866 {
 867         return(rndis_set_config_parameter(dev, param, 0, &value));
 868 }*/
 869
 870
 871 /*
 872  * data conversion functions
 873  */
 874 static int level_to_qual(int level)
 875 {
 876         int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
 877         return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
 878 }
 879
 880
 881 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
 882 {
 883         freq->e = 0;
 884         freq->i = 0;
 885         freq->flags = 0;
 886
 887         /* see comment in wireless.h above the "struct iw_freq"
 888          * definition for an explanation of this if
 889          * NOTE: 1000000 is due to the kHz
 890          */
 891         if (dsconfig > 1000000) {
 892                 freq->m = dsconfig / 10;
 893                 freq->e = 1;
 894         } else
 895                 freq->m = dsconfig;
 896
 897         /* convert from kHz to Hz */
 898         freq->e += 3;
 899 }
 900
 901
 902 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
 903 {
 904         if (freq->m < 1000 && freq->e == 0) {
 905                 if (freq->m >= 1 && freq->m <= 14)
 906                         *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
 907                 else
 908                         return -1;
 909         } else {
 910                 int i;
 911                 *dsconfig = freq->m;
 912                 for (i = freq->e; i > 0; i--)
 913                         *dsconfig *= 10;
 914                 *dsconfig /= 1000;
 915         }
 916
 917         return 0;
 918 }
 919
 920
 921 /*
 922  * common functions
 923  */
 924 static int set_infra_mode(struct usbnet *usbdev, int mode);
 925 static void restore_keys(struct usbnet *usbdev);
 926 static int rndis_check_bssid_list(struct usbnet *usbdev);
 927
 928 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
 929 {
 930         int ret, len;
 931
 932         len = sizeof(*ssid);
 933         ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
 934
 935         if (ret != 0)
 936                 ssid->length = 0;
 937
 938 #ifdef DEBUG
 939         {
 940                 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
 941
 942                 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
 943                 tmp[le32_to_cpu(ssid->length)] = 0;
 944                 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
 945         }
 946 #endif
 947         return ret;
 948 }
 949
 950
 951 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
 952 {
 953         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 954         int ret;
 955
 956         ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
 957         if (ret == 0) {
 958                 memcpy(&priv->essid, ssid, sizeof(priv->essid));
 959                 priv->radio_on = 1;
 960                 devdbg(usbdev, "set_essid: radio_on = 1");
 961         }
 962
 963         return ret;
 964 }
 965
 966
 967 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
 968 {
 969         int ret, len;
 970
 971         len = ETH_ALEN;
 972         ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
 973
 974         if (ret != 0)
 975                 memset(bssid, 0, ETH_ALEN);
 976
 977         return ret;
 978 }
 979
 980 static int get_association_info(struct usbnet *usbdev,
 981                         struct ndis_80211_assoc_info *info, int len)
 982 {
 983         return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
 984                                 info, &len);
 985 }
 986
 987 static int is_associated(struct usbnet *usbdev)
 988 {
 989         u8 bssid[ETH_ALEN];
 990         int ret;
 991
 992         ret = get_bssid(usbdev, bssid);
 993
 994         return (ret == 0 && !is_zero_ether_addr(bssid));
 995 }
 996
 997
 998 static int disassociate(struct usbnet *usbdev, int reset_ssid)
 999 {
1000         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1001         struct ndis_80211_ssid ssid;
1002         int i, ret = 0;
1003
1004         if (priv->radio_on) {
1005                 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1006                 if (ret == 0) {
1007                         priv->radio_on = 0;
1008                         devdbg(usbdev, "disassociate: radio_on = 0");
1009
1010                         if (reset_ssid)
1011                                 msleep(100);
1012                 }
1013         }
1014
1015         /* disassociate causes radio to be turned off; if reset_ssid
1016          * is given, set random ssid to enable radio */
1017         if (reset_ssid) {
1018                 /* Set device to infrastructure mode so we don't get ad-hoc
1019                  * 'media connect' indications with the random ssid.
1020                  */
1021                 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1022
1023                 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1024                 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1025                 ssid.essid[0] = 0x1;
1026                 ssid.essid[1] = 0xff;
1027                 for (i = 2; i < sizeof(ssid.essid); i++)
1028                         ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1029                 ret = set_essid(usbdev, &ssid);
1030         }
1031         return ret;
1032 }
1033
1034
1035 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
1036 {
1037         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1038         __le32 tmp;
1039         int auth_mode, ret;
1040
1041         devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
1042                 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
1043
1044         if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
1045                 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
1046                         auth_mode = NDIS_80211_AUTH_WPA2;
1047                 else
1048                         auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1049         } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
1050                 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
1051                         auth_mode = NDIS_80211_AUTH_WPA;
1052                 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
1053                         auth_mode = NDIS_80211_AUTH_WPA_PSK;
1054                 else
1055                         auth_mode = NDIS_80211_AUTH_WPA_NONE;
1056         } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
1057                 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
1058                         auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1059                 else
1060                         auth_mode = NDIS_80211_AUTH_SHARED;
1061         } else
1062                 auth_mode = NDIS_80211_AUTH_OPEN;
1063
1064         tmp = cpu_to_le32(auth_mode);
1065         ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1066                                                                 sizeof(tmp));
1067         if (ret != 0) {
1068                 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
1069                 return ret;
1070         }
1071
1072         priv->wpa_version = wpa_version;
1073         priv->wpa_authalg = authalg;
1074         return 0;
1075 }
1076
1077
1078 static int set_priv_filter(struct usbnet *usbdev)
1079 {
1080         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1081         __le32 tmp;
1082
1083         devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
1084
1085         if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
1086             priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
1087                 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1088         else
1089                 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1090
1091         return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1092                                                                 sizeof(tmp));
1093 }
1094
1095
1096 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1097 {
1098         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1099         __le32 tmp;
1100         int encr_mode, ret;
1101
1102         devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
1103                 pairwise,
1104                 groupwise);
1105
1106         if (pairwise & IW_AUTH_CIPHER_CCMP)
1107                 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1108         else if (pairwise & IW_AUTH_CIPHER_TKIP)
1109                 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1110         else if (pairwise &
1111                  (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
1112                 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1113         else if (groupwise & IW_AUTH_CIPHER_CCMP)
1114                 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1115         else if (groupwise & IW_AUTH_CIPHER_TKIP)
1116                 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1117         else
1118                 encr_mode = NDIS_80211_ENCR_DISABLED;
1119
1120         tmp = cpu_to_le32(encr_mode);
1121         ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1122                                                                 sizeof(tmp));
1123         if (ret != 0) {
1124                 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
1125                 return ret;
1126         }
1127
1128         priv->wpa_cipher_pair = pairwise;
1129         priv->wpa_cipher_group = groupwise;
1130         return 0;
1131 }
1132
1133
1134 static int set_assoc_params(struct usbnet *usbdev)
1135 {
1136         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1137
1138         set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
1139         set_priv_filter(usbdev);
1140         set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
1141
1142         return 0;
1143 }
1144
1145
1146 static int set_infra_mode(struct usbnet *usbdev, int mode)
1147 {
1148         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1149         __le32 tmp;
1150         int ret;
1151
1152         devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
1153
1154         tmp = cpu_to_le32(mode);
1155         ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1156                                                                 sizeof(tmp));
1157         if (ret != 0) {
1158                 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
1159                 return ret;
1160         }
1161
1162         /* NDIS drivers clear keys when infrastructure mode is
1163          * changed. But Linux tools assume otherwise. So set the
1164          * keys */
1165         restore_keys(usbdev);
1166
1167         priv->infra_mode = mode;
1168         return 0;
1169 }
1170
1171
1172 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1173 {
1174         __le32 tmp;
1175
1176         devdbg(usbdev, "set_rts_threshold %i", rts_threshold);
1177
1178         if (rts_threshold < 0 || rts_threshold > 2347)
1179                 rts_threshold = 2347;
1180
1181         tmp = cpu_to_le32(rts_threshold);
1182         return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1183                                                                 sizeof(tmp));
1184 }
1185
1186
1187 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1188 {
1189         __le32 tmp;
1190
1191         devdbg(usbdev, "set_frag_threshold %i", frag_threshold);
1192
1193         if (frag_threshold < 256 || frag_threshold > 2346)
1194                 frag_threshold = 2346;
1195
1196         tmp = cpu_to_le32(frag_threshold);
1197         return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1198                                                                 sizeof(tmp));
1199 }
1200
1201
1202 static void set_default_iw_params(struct usbnet *usbdev)
1203 {
1204         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1205
1206         priv->wpa_keymgmt = 0;
1207         priv->wpa_version = 0;
1208
1209         set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1210         set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1211                                 IW_AUTH_ALG_OPEN_SYSTEM);
1212         set_priv_filter(usbdev);
1213         set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1214 }
1215
1216
1217 static int deauthenticate(struct usbnet *usbdev)
1218 {
1219         int ret;
1220
1221         ret = disassociate(usbdev, 1);
1222         set_default_iw_params(usbdev);
1223         return ret;
1224 }
1225
1226
1227 /* index must be 0 - N, as per NDIS  */
1228 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
1229 {
1230         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1231         struct ndis_80211_wep_key ndis_key;
1232         int cipher, ret;
1233
1234         if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1235                 return -EINVAL;
1236
1237         if (key_len == 5)
1238                 cipher = WLAN_CIPHER_SUITE_WEP40;
1239         else
1240                 cipher = WLAN_CIPHER_SUITE_WEP104;
1241
1242         memset(&ndis_key, 0, sizeof(ndis_key));
1243
1244         ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1245         ndis_key.length = cpu_to_le32(key_len);
1246         ndis_key.index = cpu_to_le32(index);
1247         memcpy(&ndis_key.material, key, key_len);
1248
1249         if (index == priv->encr_tx_key_index) {
1250                 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1251                 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1252                                                 IW_AUTH_CIPHER_NONE);
1253                 if (ret)
1254                         devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1255                                                                         ret);
1256         }
1257
1258         ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1259                                                         sizeof(ndis_key));
1260         if (ret != 0) {
1261                 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1262                                                         index+1, ret);
1263                 return ret;
1264         }
1265
1266         priv->encr_keys[index].len = key_len;
1267         priv->encr_keys[index].cipher = cipher;
1268         memcpy(&priv->encr_keys[index].material, key, key_len);
1269         memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1270
1271         return 0;
1272 }
1273
1274
1275 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1276                         int index, const u8 *addr, const u8 *rx_seq, int cipher,
1277                         int flags)
1278 {
1279         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1280         struct ndis_80211_key ndis_key;
1281         bool is_addr_ok;
1282         int ret;
1283
1284         if (index < 0 || index >= 4) {
1285                 devdbg(usbdev, "add_wpa_key: index out of range (%i)", index);
1286                 return -EINVAL;
1287         }
1288         if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1289                 devdbg(usbdev, "add_wpa_key: key length out of range (%i)",
1290                         key_len);
1291                 return -EINVAL;
1292         }
1293         if ((flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) && !rx_seq) {
1294                 devdbg(usbdev, "add_wpa_key: recv seq flag without buffer");
1295                 return -EINVAL;
1296         }
1297         is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1298                                         !is_broadcast_ether_addr(addr);
1299         if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1300                 devdbg(usbdev, "add_wpa_key: pairwise but bssid invalid (%pM)",
1301                         addr);
1302                 return -EINVAL;
1303         }
1304
1305         devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1306                         !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1307                         !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1308                         !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1309
1310         memset(&ndis_key, 0, sizeof(ndis_key));
1311
1312         ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1313                                 sizeof(ndis_key.material) + key_len);
1314         ndis_key.length = cpu_to_le32(key_len);
1315         ndis_key.index = cpu_to_le32(index) | flags;
1316
1317         if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1318                 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1319                  * different order than NDIS spec, so swap the order here. */
1320                 memcpy(ndis_key.material, key, 16);
1321                 memcpy(ndis_key.material + 16, key + 24, 8);
1322                 memcpy(ndis_key.material + 24, key + 16, 8);
1323         } else
1324                 memcpy(ndis_key.material, key, key_len);
1325
1326         if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1327                 memcpy(ndis_key.rsc, rx_seq, 6);
1328
1329         if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1330                 /* pairwise key */
1331                 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1332         } else {
1333                 /* group key */
1334                 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1335                         memset(ndis_key.bssid, 0xff, ETH_ALEN);
1336                 else
1337                         get_bssid(usbdev, ndis_key.bssid);
1338         }
1339
1340         ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1341                                         le32_to_cpu(ndis_key.size));
1342         devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1343         if (ret != 0)
1344                 return ret;
1345
1346         memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1347         priv->encr_keys[index].len = key_len;
1348         priv->encr_keys[index].cipher = cipher;
1349         memcpy(&priv->encr_keys[index].material, key, key_len);
1350         if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1351                 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1352         else
1353                 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1354
1355         if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1356                 priv->encr_tx_key_index = index;
1357
1358         return 0;
1359 }
1360
1361
1362 static int restore_key(struct usbnet *usbdev, int key_idx)
1363 {
1364         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1365         struct rndis_wlan_encr_key key;
1366         int flags;
1367
1368         key = priv->encr_keys[key_idx];
1369
1370         devdbg(usbdev, "restore_key: %i:%s:%i", key_idx,
1371                 is_wpa_key(priv, key_idx) ? "wpa" : "wep",
1372                 key.len);
1373
1374         if (key.len == 0)
1375                 return 0;
1376
1377         if (is_wpa_key(priv, key_idx)) {
1378                 flags = 0;
1379
1380                 /*if (priv->encr_tx_key_index == key_idx)
1381                         flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY;*/
1382
1383                 if (!is_zero_ether_addr(key.bssid) &&
1384                                 !is_broadcast_ether_addr(key.bssid))
1385                         flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY;
1386
1387                 return add_wpa_key(usbdev, key.material, key.len, key_idx,
1388                                         key.bssid, NULL, key.cipher, flags);
1389         }
1390
1391         return add_wep_key(usbdev, key.material, key.len, key_idx);
1392 }
1393
1394
1395 static void restore_keys(struct usbnet *usbdev)
1396 {
1397         int i;
1398
1399         for (i = 0; i < 4; i++)
1400                 restore_key(usbdev, i);
1401 }
1402
1403
1404 static void clear_key(struct rndis_wlan_private *priv, int idx)
1405 {
1406         memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1407 }
1408
1409
1410 /* remove_key is for both wep and wpa */
1411 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1412 {
1413         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1414         struct ndis_80211_remove_key remove_key;
1415         __le32 keyindex;
1416         bool is_wpa;
1417         int ret;
1418
1419         if (priv->encr_keys[index].len == 0)
1420                 return 0;
1421
1422         is_wpa = is_wpa_key(priv, index);
1423
1424         devdbg(usbdev, "remove_key: %i:%s:%i", index, is_wpa ? "wpa" : "wep",
1425                 priv->encr_keys[index].len);
1426
1427         clear_key(priv, index);
1428
1429         if (is_wpa) {
1430                 remove_key.size = cpu_to_le32(sizeof(remove_key));
1431                 remove_key.index = cpu_to_le32(index);
1432                 if (bssid) {
1433                         /* pairwise key */
1434                         if (!is_broadcast_ether_addr(bssid))
1435                                 remove_key.index |=
1436                                         NDIS_80211_ADDKEY_PAIRWISE_KEY;
1437                         memcpy(remove_key.bssid, bssid,
1438                                         sizeof(remove_key.bssid));
1439                 } else
1440                         memset(remove_key.bssid, 0xff,
1441                                                 sizeof(remove_key.bssid));
1442
1443                 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1444                                                         sizeof(remove_key));
1445                 if (ret != 0)
1446                         return ret;
1447         } else {
1448                 keyindex = cpu_to_le32(index);
1449                 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1450                                                         sizeof(keyindex));
1451                 if (ret != 0) {
1452                         devwarn(usbdev,
1453                                 "removing encryption key %d failed (%08X)",
1454                                 index, ret);
1455                         return ret;
1456                 }
1457         }
1458
1459         /* if it is transmit key, disable encryption */
1460         if (index == priv->encr_tx_key_index)
1461                 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1462
1463         return 0;
1464 }
1465
1466
1467 static void set_multicast_list(struct usbnet *usbdev)
1468 {
1469         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1470         struct dev_mc_list *mclist;
1471         __le32 filter;
1472         int ret, i, size;
1473         char *buf;
1474
1475         filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1476
1477         if (usbdev->net->flags & IFF_PROMISC) {
1478                 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1479                         RNDIS_PACKET_TYPE_ALL_LOCAL;
1480         } else if (usbdev->net->flags & IFF_ALLMULTI ||
1481                    usbdev->net->mc_count > priv->multicast_size) {
1482                 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1483         } else if (usbdev->net->mc_count > 0) {
1484                 size = min(priv->multicast_size, usbdev->net->mc_count);
1485                 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1486                 if (!buf) {
1487                         devwarn(usbdev,
1488                                 "couldn't alloc %d bytes of memory",
1489                                 size * ETH_ALEN);
1490                         return;
1491                 }
1492
1493                 mclist = usbdev->net->mc_list;
1494                 for (i = 0; i < size && mclist; mclist = mclist->next) {
1495                         if (mclist->dmi_addrlen != ETH_ALEN)
1496                                 continue;
1497
1498                         memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1499                         i++;
1500                 }
1501
1502                 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1503                                                                 i * ETH_ALEN);
1504                 if (ret == 0 && i > 0)
1505                         filter |= RNDIS_PACKET_TYPE_MULTICAST;
1506                 else
1507                         filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1508
1509                 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1510                                                 i, priv->multicast_size, ret);
1511
1512                 kfree(buf);
1513         }
1514
1515         ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1516                                                         sizeof(filter));
1517         if (ret < 0) {
1518                 devwarn(usbdev, "couldn't set packet filter: %08x",
1519                                                         le32_to_cpu(filter));
1520         }
1521
1522         devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1523                                                 le32_to_cpu(filter), ret);
1524 }
1525
1526
1527 /*
1528  * cfg80211 ops
1529  */
1530 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1531                                         struct net_device *dev,
1532                                         enum nl80211_iftype type, u32 *flags,
1533                                         struct vif_params *params)
1534 {
1535         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1536         struct usbnet *usbdev = priv->usbdev;
1537         int mode;
1538
1539         switch (type) {
1540         case NL80211_IFTYPE_ADHOC:
1541                 mode = NDIS_80211_INFRA_ADHOC;
1542                 break;
1543         case NL80211_IFTYPE_STATION:
1544                 mode = NDIS_80211_INFRA_INFRA;
1545                 break;
1546         default:
1547                 return -EINVAL;
1548         }
1549
1550         priv->wdev.iftype = type;
1551
1552         return set_infra_mode(usbdev, mode);
1553 }
1554
1555
1556 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1557 {
1558         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1559         struct usbnet *usbdev = priv->usbdev;
1560         int err;
1561
1562         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1563                 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1564                 if (err < 0)
1565                         return err;
1566         }
1567
1568         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1569                 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1570                 if (err < 0)
1571                         return err;
1572         }
1573
1574         return 0;
1575 }
1576
1577
1578 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
1579                                 int dbm)
1580 {
1581         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1582         struct usbnet *usbdev = priv->usbdev;
1583
1584         devdbg(usbdev, "rndis_set_tx_power type:0x%x dbm:%i", type, dbm);
1585
1586         /* Device doesn't support changing txpower after initialization, only
1587          * turn off/on radio. Support 'auto' mode and setting same dBm that is
1588          * currently used.
1589          */
1590         if (type == TX_POWER_AUTOMATIC || dbm == get_bcm4320_power_dbm(priv)) {
1591                 if (!priv->radio_on)
1592                         disassociate(usbdev, 1); /* turn on radio */
1593
1594                 return 0;
1595         }
1596
1597         return -ENOTSUPP;
1598 }
1599
1600
1601 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1602 {
1603         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1604         struct usbnet *usbdev = priv->usbdev;
1605
1606         *dbm = get_bcm4320_power_dbm(priv);
1607
1608         devdbg(usbdev, "rndis_get_tx_power dbm:%i", *dbm);
1609
1610         return 0;
1611 }
1612
1613
1614 #define SCAN_DELAY_JIFFIES (6 * HZ)
1615 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1616                         struct cfg80211_scan_request *request)
1617 {
1618         struct usbnet *usbdev = netdev_priv(dev);
1619         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1620         int ret;
1621         __le32 tmp;
1622
1623         devdbg(usbdev, "cfg80211.scan");
1624
1625         /* Get current bssid list from device before new scan, as new scan
1626          * clears internal bssid list.
1627          */
1628         rndis_check_bssid_list(usbdev);
1629
1630         if (!request)
1631                 return -EINVAL;
1632
1633         if (priv->scan_request && priv->scan_request != request)
1634                 return -EBUSY;
1635
1636         priv->scan_request = request;
1637
1638         tmp = cpu_to_le32(1);
1639         ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1640                                                         sizeof(tmp));
1641         if (ret == 0) {
1642                 /* Wait before retrieving scan results from device */
1643                 queue_delayed_work(priv->workqueue, &priv->scan_work,
1644                         SCAN_DELAY_JIFFIES);
1645         }
1646
1647         return ret;
1648 }
1649
1650
1651 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1652                                         struct ndis_80211_bssid_ex *bssid)
1653 {
1654         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1655         struct ieee80211_channel *channel;
1656         s32 signal;
1657         u64 timestamp;
1658         u16 capability;
1659         u16 beacon_interval;
1660         struct ndis_80211_fixed_ies *fixed;
1661         int ie_len, bssid_len;
1662         u8 *ie;
1663
1664         devdbg(usbdev, " found bssid: '%.32s' [%pM]", bssid->ssid.essid,
1665                                                         bssid->mac);
1666
1667         /* parse bssid structure */
1668         bssid_len = le32_to_cpu(bssid->length);
1669
1670         if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1671                         sizeof(struct ndis_80211_fixed_ies))
1672                 return NULL;
1673
1674         fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1675
1676         ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1677         ie_len = min(bssid_len - (int)sizeof(*bssid),
1678                                         (int)le32_to_cpu(bssid->ie_length));
1679         ie_len -= sizeof(struct ndis_80211_fixed_ies);
1680         if (ie_len < 0)
1681                 return NULL;
1682
1683         /* extract data for cfg80211_inform_bss */
1684         channel = ieee80211_get_channel(priv->wdev.wiphy,
1685                         KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1686         if (!channel)
1687                 return NULL;
1688
1689         signal = level_to_qual(le32_to_cpu(bssid->rssi));
1690         timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1691         capability = le16_to_cpu(fixed->capabilities);
1692         beacon_interval = le16_to_cpu(fixed->beacon_interval);
1693
1694         return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1695                 timestamp, capability, beacon_interval, ie, ie_len, signal,
1696                 GFP_KERNEL);
1697 }
1698
1699
1700 static int rndis_check_bssid_list(struct usbnet *usbdev)
1701 {
1702         void *buf = NULL;
1703         struct ndis_80211_bssid_list_ex *bssid_list;
1704         struct ndis_80211_bssid_ex *bssid;
1705         int ret = -EINVAL, len, count, bssid_len;
1706         bool resized = false;
1707
1708         devdbg(usbdev, "check_bssid_list");
1709
1710         len = CONTROL_BUFFER_SIZE;
1711 resize_buf:
1712         buf = kmalloc(len, GFP_KERNEL);
1713         if (!buf) {
1714                 ret = -ENOMEM;
1715                 goto out;
1716         }
1717
1718         ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1719         if (ret != 0)
1720                 goto out;
1721
1722         if (!resized && len > CONTROL_BUFFER_SIZE) {
1723                 resized = true;
1724                 kfree(buf);
1725                 goto resize_buf;
1726         }
1727
1728         bssid_list = buf;
1729         bssid = bssid_list->bssid;
1730         bssid_len = le32_to_cpu(bssid->length);
1731         count = le32_to_cpu(bssid_list->num_items);
1732         devdbg(usbdev, "check_bssid_list: %d BSSIDs found (buflen: %d)", count,
1733                                                                         len);
1734
1735         while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1736                 rndis_bss_info_update(usbdev, bssid);
1737
1738                 bssid = (void *)bssid + bssid_len;
1739                 bssid_len = le32_to_cpu(bssid->length);
1740                 count--;
1741         }
1742
1743 out:
1744         kfree(buf);
1745         return ret;
1746 }
1747
1748
1749 static void rndis_get_scan_results(struct work_struct *work)
1750 {
1751         struct rndis_wlan_private *priv =
1752                 container_of(work, struct rndis_wlan_private, scan_work.work);
1753         struct usbnet *usbdev = priv->usbdev;
1754         int ret;
1755
1756         devdbg(usbdev, "get_scan_results");
1757
1758         if (!priv->scan_request)
1759                 return;
1760
1761         ret = rndis_check_bssid_list(usbdev);
1762
1763         cfg80211_scan_done(priv->scan_request, ret < 0);
1764
1765         priv->scan_request = NULL;
1766 }
1767
1768
1769 /*
1770  * wireless extension handlers
1771  */
1772
1773 static int rndis_iw_commit(struct net_device *dev,
1774     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1775 {
1776         /* dummy op */
1777         return 0;
1778 }
1779
1780
1781 static int rndis_iw_set_essid(struct net_device *dev,
1782     struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1783 {
1784         struct ndis_80211_ssid ssid;
1785         int length = wrqu->essid.length;
1786         struct usbnet *usbdev = netdev_priv(dev);
1787
1788         devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1789                 wrqu->essid.flags, wrqu->essid.length, essid);
1790
1791         if (length > NDIS_802_11_LENGTH_SSID)
1792                 length = NDIS_802_11_LENGTH_SSID;
1793
1794         ssid.length = cpu_to_le32(length);
1795         if (length > 0)
1796                 memcpy(ssid.essid, essid, length);
1797         else
1798                 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1799
1800         set_assoc_params(usbdev);
1801
1802         if (!wrqu->essid.flags || length == 0)
1803                 return disassociate(usbdev, 1);
1804         else {
1805                 /* Pause and purge rx queue, so we don't pass packets before
1806                  * 'media connect'-indication.
1807                  */
1808                 usbnet_pause_rx(usbdev);
1809                 usbnet_purge_paused_rxq(usbdev);
1810
1811                 return set_essid(usbdev, &ssid);
1812         }
1813 }
1814
1815
1816 static int rndis_iw_get_essid(struct net_device *dev,
1817     struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1818 {
1819         struct ndis_80211_ssid ssid;
1820         struct usbnet *usbdev = netdev_priv(dev);
1821         int ret;
1822
1823         ret = get_essid(usbdev, &ssid);
1824
1825         if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1826                 wrqu->essid.flags = 1;
1827                 wrqu->essid.length = le32_to_cpu(ssid.length);
1828                 memcpy(essid, ssid.essid, wrqu->essid.length);
1829                 essid[wrqu->essid.length] = 0;
1830         } else {
1831                 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1832                 wrqu->essid.flags = 0;
1833                 wrqu->essid.length = 0;
1834         }
1835         devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1836         return ret;
1837 }
1838
1839
1840 static int rndis_iw_get_bssid(struct net_device *dev,
1841     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1842 {
1843         struct usbnet *usbdev = netdev_priv(dev);
1844         unsigned char bssid[ETH_ALEN];
1845         int ret;
1846
1847         ret = get_bssid(usbdev, bssid);
1848
1849         if (ret == 0)
1850                 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1851         else
1852                 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1853
1854         wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1855         memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1856
1857         return ret;
1858 }
1859
1860
1861 static int rndis_iw_set_bssid(struct net_device *dev,
1862     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1863 {
1864         struct usbnet *usbdev = netdev_priv(dev);
1865         u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1866         int ret;
1867
1868         devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1869
1870         ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1871
1872         /* user apps may set ap's mac address, which is not required;
1873          * they may fail to work if this function fails, so return
1874          * success */
1875         if (ret)
1876                 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1877
1878         return 0;
1879 }
1880
1881
1882 static int rndis_iw_set_auth(struct net_device *dev,
1883     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1884 {
1885         struct iw_param *p = &wrqu->param;
1886         struct usbnet *usbdev = netdev_priv(dev);
1887         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1888         int ret = -ENOTSUPP;
1889
1890         switch (p->flags & IW_AUTH_INDEX) {
1891         case IW_AUTH_WPA_VERSION:
1892                 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1893                 priv->wpa_version = p->value;
1894                 ret = 0;
1895                 break;
1896
1897         case IW_AUTH_CIPHER_PAIRWISE:
1898                 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1899                 priv->wpa_cipher_pair = p->value;
1900                 ret = 0;
1901                 break;
1902
1903         case IW_AUTH_CIPHER_GROUP:
1904                 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1905                 priv->wpa_cipher_group = p->value;
1906                 ret = 0;
1907                 break;
1908
1909         case IW_AUTH_KEY_MGMT:
1910                 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1911                 priv->wpa_keymgmt = p->value;
1912                 ret = 0;
1913                 break;
1914
1915         case IW_AUTH_TKIP_COUNTERMEASURES:
1916                 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1917                                                                 p->value);
1918                 ret = 0;
1919                 break;
1920
1921         case IW_AUTH_DROP_UNENCRYPTED:
1922                 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1923                 ret = 0;
1924                 break;
1925
1926         case IW_AUTH_80211_AUTH_ALG:
1927                 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1928                 priv->wpa_authalg = p->value;
1929                 ret = 0;
1930                 break;
1931
1932         case IW_AUTH_WPA_ENABLED:
1933                 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1934                 if (wrqu->param.value)
1935                         deauthenticate(usbdev);
1936                 ret = 0;
1937                 break;
1938
1939         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1940                 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1941                                                                 p->value);
1942                 ret = 0;
1943                 break;
1944
1945         case IW_AUTH_ROAMING_CONTROL:
1946                 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1947                 ret = 0;
1948                 break;
1949
1950         case IW_AUTH_PRIVACY_INVOKED:
1951                 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1952                                 wrqu->param.flags & IW_AUTH_INDEX);
1953                 return -EOPNOTSUPP;
1954
1955         default:
1956                 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN  %08x, %08x",
1957                         p->flags & IW_AUTH_INDEX, p->value);
1958         }
1959         return ret;
1960 }
1961
1962
1963 static int rndis_iw_get_auth(struct net_device *dev,
1964     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1965 {
1966         struct iw_param *p = &wrqu->param;
1967         struct usbnet *usbdev = netdev_priv(dev);
1968         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1969
1970         switch (p->flags & IW_AUTH_INDEX) {
1971         case IW_AUTH_WPA_VERSION:
1972                 p->value = priv->wpa_version;
1973                 break;
1974         case IW_AUTH_CIPHER_PAIRWISE:
1975                 p->value = priv->wpa_cipher_pair;
1976                 break;
1977         case IW_AUTH_CIPHER_GROUP:
1978                 p->value = priv->wpa_cipher_group;
1979                 break;
1980         case IW_AUTH_KEY_MGMT:
1981                 p->value = priv->wpa_keymgmt;
1982                 break;
1983         case IW_AUTH_80211_AUTH_ALG:
1984                 p->value = priv->wpa_authalg;
1985                 break;
1986         default:
1987                 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1988                                 wrqu->param.flags & IW_AUTH_INDEX);
1989                 return -EOPNOTSUPP;
1990         }
1991         return 0;
1992 }
1993
1994
1995 static int rndis_iw_set_encode(struct net_device *dev,
1996     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1997 {
1998         struct usbnet *usbdev = netdev_priv(dev);
1999         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2000         struct rndis_wlan_encr_key key;
2001         int ret, index, key_len;
2002         u8 *keybuf;
2003
2004         index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
2005
2006         /* iwconfig gives index as 1 - N */
2007         if (index > 0)
2008                 index--;
2009         else
2010                 index = priv->encr_tx_key_index;
2011
2012         if (index < 0 || index >= 4) {
2013                 devwarn(usbdev, "encryption index out of range (%u)", index);
2014                 return -EINVAL;
2015         }
2016
2017         /* remove key if disabled */
2018         if (wrqu->data.flags & IW_ENCODE_DISABLED) {
2019                 if (remove_key(usbdev, index, NULL))
2020                         return -EINVAL;
2021                 else
2022                         return 0;
2023         }
2024
2025         /* global encryption state (for all keys) */
2026         if (wrqu->data.flags & IW_ENCODE_OPEN)
2027                 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
2028                                                 IW_AUTH_ALG_OPEN_SYSTEM);
2029         else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
2030                 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
2031                                                 IW_AUTH_ALG_SHARED_KEY);
2032         if (ret != 0)
2033                 return ret;
2034
2035         if (wrqu->data.length > 0) {
2036                 key_len = wrqu->data.length;
2037                 keybuf = extra;
2038         } else {
2039                 /* must be set as tx key */
2040                 if (priv->encr_keys[index].len == 0)
2041                         return -EINVAL;
2042                 key = priv->encr_keys[index];
2043                 key_len = key.len;
2044                 keybuf = key.material;
2045                 priv->encr_tx_key_index = index;
2046         }
2047
2048         if (add_wep_key(usbdev, keybuf, key_len, index) != 0)
2049                 return -EINVAL;
2050
2051         if (index == priv->encr_tx_key_index)
2052                 /* ndis drivers want essid to be set after setting encr */
2053                 set_essid(usbdev, &priv->essid);
2054
2055         return 0;
2056 }
2057
2058
2059 static int rndis_iw_set_encode_ext(struct net_device *dev,
2060     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2061 {
2062         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
2063         struct usbnet *usbdev = netdev_priv(dev);
2064         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2065         int keyidx, flags, cipher;
2066
2067         keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
2068
2069         /* iwconfig gives index as 1 - N */
2070         if (keyidx)
2071                 keyidx--;
2072         else
2073                 keyidx = priv->encr_tx_key_index;
2074
2075         if (keyidx < 0 || keyidx >= 4) {
2076                 devwarn(usbdev, "encryption index out of range (%u)", keyidx);
2077                 return -EINVAL;
2078         }
2079
2080         if (ext->alg == WPA_ALG_WEP) {
2081                 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
2082                         priv->encr_tx_key_index = keyidx;
2083                 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
2084         }
2085
2086         cipher = -1;
2087         if (ext->alg == IW_ENCODE_ALG_TKIP)
2088                 cipher = WLAN_CIPHER_SUITE_TKIP;
2089         else if (ext->alg == IW_ENCODE_ALG_CCMP)
2090                 cipher = WLAN_CIPHER_SUITE_CCMP;
2091
2092         if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
2093             ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
2094                 return remove_key(usbdev, keyidx, NULL);
2095
2096         if (cipher == -1)
2097                 return -EOPNOTSUPP;
2098
2099         flags = 0;
2100         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID)
2101                 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2102         if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY))
2103                 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY;
2104         if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
2105                 flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY;
2106
2107         return add_wpa_key(usbdev, ext->key, ext->key_len, keyidx,
2108                                 (u8 *)&ext->addr.sa_data, ext->rx_seq, cipher,
2109                                 flags);
2110 }
2111
2112
2113 static int rndis_iw_set_genie(struct net_device *dev,
2114     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2115 {
2116         struct usbnet *usbdev = netdev_priv(dev);
2117         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2118         int ret = 0;
2119
2120 #ifdef DEBUG
2121         int j;
2122         u8 *gie = extra;
2123         for (j = 0; j < wrqu->data.length; j += 8)
2124                 devdbg(usbdev,
2125                         "SIOCSIWGENIE %04x - "
2126                         "%02x %02x %02x %02x %02x %02x %02x %02x", j,
2127                         gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
2128                         gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
2129 #endif
2130         /* clear existing IEs */
2131         if (priv->wpa_ie_len) {
2132                 kfree(priv->wpa_ie);
2133                 priv->wpa_ie_len = 0;
2134         }
2135
2136         /* set new IEs */
2137         priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
2138         if (priv->wpa_ie) {
2139                 priv->wpa_ie_len = wrqu->data.length;
2140                 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
2141         } else
2142                 ret = -ENOMEM;
2143         return ret;
2144 }
2145
2146
2147 static int rndis_iw_get_genie(struct net_device *dev,
2148     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2149 {
2150         struct usbnet *usbdev = netdev_priv(dev);
2151         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2152
2153         devdbg(usbdev, "SIOCGIWGENIE");
2154
2155         if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
2156                 wrqu->data.length = 0;
2157                 return 0;
2158         }
2159
2160         if (wrqu->data.length < priv->wpa_ie_len)
2161                 return -E2BIG;
2162
2163         wrqu->data.length = priv->wpa_ie_len;
2164         memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
2165
2166         return 0;
2167 }
2168
2169
2170 static int rndis_iw_set_freq(struct net_device *dev,
2171     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2172 {
2173         struct usbnet *usbdev = netdev_priv(dev);
2174         struct ndis_80211_conf config;
2175         unsigned int dsconfig;
2176         int len, ret;
2177
2178         /* this OID is valid only when not associated */
2179         if (is_associated(usbdev))
2180                 return 0;
2181
2182         dsconfig = 0;
2183         if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
2184                 return -EINVAL;
2185
2186         len = sizeof(config);
2187         ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2188         if (ret != 0) {
2189                 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
2190                 return 0;
2191         }
2192
2193         config.ds_config = cpu_to_le32(dsconfig);
2194
2195         devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
2196         return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
2197                                                                 sizeof(config));
2198 }
2199
2200
2201 static int rndis_iw_get_freq(struct net_device *dev,
2202     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2203 {
2204         struct usbnet *usbdev = netdev_priv(dev);
2205         struct ndis_80211_conf config;
2206         int len, ret;
2207
2208         len = sizeof(config);
2209         ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2210         if (ret == 0)
2211                 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
2212
2213         devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
2214         return ret;
2215 }
2216
2217
2218 static int rndis_iw_get_rate(struct net_device *dev,
2219     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2220 {
2221         struct usbnet *usbdev = netdev_priv(dev);
2222         __le32 tmp;
2223         int ret, len;
2224
2225         len = sizeof(tmp);
2226         ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
2227         if (ret == 0) {
2228                 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
2229                 wrqu->bitrate.disabled = 0;
2230                 wrqu->bitrate.flags = 1;
2231         }
2232         return ret;
2233 }
2234
2235
2236 static int rndis_iw_set_mlme(struct net_device *dev,
2237     struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2238 {
2239         struct usbnet *usbdev = netdev_priv(dev);
2240         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2241         struct iw_mlme *mlme = (struct iw_mlme *)extra;
2242         unsigned char bssid[ETH_ALEN];
2243
2244         get_bssid(usbdev, bssid);
2245
2246         if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
2247                 return -EINVAL;
2248
2249         switch (mlme->cmd) {
2250         case IW_MLME_DEAUTH:
2251                 return deauthenticate(usbdev);
2252         case IW_MLME_DISASSOC:
2253                 return disassociate(usbdev, priv->radio_on);
2254         default:
2255                 return -EOPNOTSUPP;
2256         }
2257
2258         return 0;
2259 }
2260
2261
2262 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
2263 {
2264         struct usbnet *usbdev = netdev_priv(dev);
2265         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2266         unsigned long flags;
2267
2268         spin_lock_irqsave(&priv->stats_lock, flags);
2269         memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
2270         spin_unlock_irqrestore(&priv->stats_lock, flags);
2271
2272         return &priv->iwstats;
2273 }
2274
2275
2276 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2277 static const iw_handler rndis_iw_handler[] =
2278 {
2279         IW_IOCTL(SIOCSIWCOMMIT)    = rndis_iw_commit,
2280         IW_IOCTL(SIOCGIWNAME)      = (iw_handler) cfg80211_wext_giwname,
2281         IW_IOCTL(SIOCSIWFREQ)      = rndis_iw_set_freq,
2282         IW_IOCTL(SIOCGIWFREQ)      = rndis_iw_get_freq,
2283         IW_IOCTL(SIOCSIWMODE)      = (iw_handler) cfg80211_wext_siwmode,
2284         IW_IOCTL(SIOCGIWMODE)      = (iw_handler) cfg80211_wext_giwmode,
2285         IW_IOCTL(SIOCGIWRANGE)     = (iw_handler) cfg80211_wext_giwrange,
2286         IW_IOCTL(SIOCSIWAP)        = rndis_iw_set_bssid,
2287         IW_IOCTL(SIOCGIWAP)        = rndis_iw_get_bssid,
2288         IW_IOCTL(SIOCSIWSCAN)      = (iw_handler) cfg80211_wext_siwscan,
2289         IW_IOCTL(SIOCGIWSCAN)      = (iw_handler) cfg80211_wext_giwscan,
2290         IW_IOCTL(SIOCSIWESSID)     = rndis_iw_set_essid,
2291         IW_IOCTL(SIOCGIWESSID)     = rndis_iw_get_essid,
2292         IW_IOCTL(SIOCGIWRATE)      = rndis_iw_get_rate,
2293         IW_IOCTL(SIOCSIWRTS)       = (iw_handler) cfg80211_wext_siwrts,
2294         IW_IOCTL(SIOCGIWRTS)       = (iw_handler) cfg80211_wext_giwrts,
2295         IW_IOCTL(SIOCSIWFRAG)      = (iw_handler) cfg80211_wext_siwfrag,
2296         IW_IOCTL(SIOCGIWFRAG)      = (iw_handler) cfg80211_wext_giwfrag,
2297         IW_IOCTL(SIOCSIWTXPOW)     = (iw_handler) cfg80211_wext_siwtxpower,
2298         IW_IOCTL(SIOCGIWTXPOW)     = (iw_handler) cfg80211_wext_giwtxpower,
2299         IW_IOCTL(SIOCSIWENCODE)    = rndis_iw_set_encode,
2300         IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2301         IW_IOCTL(SIOCSIWAUTH)      = rndis_iw_set_auth,
2302         IW_IOCTL(SIOCGIWAUTH)      = rndis_iw_get_auth,
2303         IW_IOCTL(SIOCSIWGENIE)     = rndis_iw_set_genie,
2304         IW_IOCTL(SIOCGIWGENIE)     = rndis_iw_get_genie,
2305         IW_IOCTL(SIOCSIWMLME)      = rndis_iw_set_mlme,
2306 };
2307
2308 static const iw_handler rndis_wlan_private_handler[] = {
2309 };
2310
2311 static const struct iw_priv_args rndis_wlan_private_args[] = {
2312 };
2313
2314
2315 static const struct iw_handler_def rndis_iw_handlers = {
2316         .num_standard = ARRAY_SIZE(rndis_iw_handler),
2317         .num_private  = ARRAY_SIZE(rndis_wlan_private_handler),
2318         .num_private_args = ARRAY_SIZE(rndis_wlan_private_args),
2319         .standard = (iw_handler *)rndis_iw_handler,
2320         .private  = (iw_handler *)rndis_wlan_private_handler,
2321         .private_args = (struct iw_priv_args *)rndis_wlan_private_args,
2322         .get_wireless_stats = rndis_get_wireless_stats,
2323 };
2324
2325
2326 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2327 {
2328         struct ndis_80211_assoc_info *info;
2329         union iwreq_data evt;
2330         u8 assoc_buf[sizeof(*info) + IW_CUSTOM_MAX + 32];
2331         u8 bssid[ETH_ALEN];
2332         int ret, offset;
2333
2334         memset(assoc_buf, 0, sizeof(assoc_buf));
2335         info = (void *)assoc_buf;
2336
2337         netif_carrier_on(usbdev->net);
2338
2339         /* Get association info IEs from device and send them back to
2340          * userspace. */
2341         ret = get_association_info(usbdev, info, sizeof(assoc_buf));
2342         if (!ret) {
2343                 evt.data.length = le32_to_cpu(info->req_ie_length);
2344                 if (evt.data.length > 0) {
2345                         offset = le32_to_cpu(info->offset_req_ies);
2346                         wireless_send_event(usbdev->net,
2347                                 IWEVASSOCREQIE, &evt,
2348                                 (char *)info + offset);
2349                 }
2350
2351                 evt.data.length = le32_to_cpu(info->resp_ie_length);
2352                 if (evt.data.length > 0) {
2353                         offset = le32_to_cpu(info->offset_resp_ies);
2354                         wireless_send_event(usbdev->net,
2355                                 IWEVASSOCRESPIE, &evt,
2356                                 (char *)info + offset);
2357                 }
2358
2359                 usbnet_resume_rx(usbdev);
2360         }
2361
2362         ret = get_bssid(usbdev, bssid);
2363         if (!ret) {
2364                 evt.data.flags = 0;
2365                 evt.data.length = 0;
2366                 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2367                 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2368         }
2369
2370         usbnet_resume_rx(usbdev);
2371 }
2372
2373 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2374 {
2375         union iwreq_data evt;
2376
2377         netif_carrier_off(usbdev->net);
2378
2379         evt.data.flags = 0;
2380         evt.data.length = 0;
2381         memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2382         wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2383 }
2384
2385 static void rndis_wlan_worker(struct work_struct *work)
2386 {
2387         struct rndis_wlan_private *priv =
2388                 container_of(work, struct rndis_wlan_private, work);
2389         struct usbnet *usbdev = priv->usbdev;
2390
2391         if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2392                 rndis_wlan_do_link_up_work(usbdev);
2393
2394         if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2395                 rndis_wlan_do_link_down_work(usbdev);
2396
2397         if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2398                 set_multicast_list(usbdev);
2399 }
2400
2401 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2402 {
2403         struct usbnet *usbdev = netdev_priv(dev);
2404         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2405
2406         if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2407                 return;
2408
2409         set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2410         queue_work(priv->workqueue, &priv->work);
2411 }
2412
2413
2414 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2415                                 struct ndis_80211_status_indication *indication,
2416                                 int len)
2417 {
2418         u8 *buf;
2419         const char *type;
2420         int flags, buflen;
2421         bool pairwise_error, group_error;
2422         struct ndis_80211_auth_request *auth_req;
2423
2424         /* must have at least one array entry */
2425         if (len < offsetof(struct ndis_80211_status_indication, u) +
2426                                 sizeof(struct ndis_80211_auth_request)) {
2427                 devinfo(usbdev, "authentication indication: "
2428                                 "too short message (%i)", len);
2429                 return;
2430         }
2431
2432         buf = (void *)&indication->u.auth_request[0];
2433         buflen = len - offsetof(struct ndis_80211_status_indication, u);
2434
2435         while (buflen >= sizeof(*auth_req)) {
2436                 auth_req = (void *)buf;
2437                 type = "unknown";
2438                 flags = le32_to_cpu(auth_req->flags);
2439                 pairwise_error = false;
2440                 group_error = false;
2441
2442                 if (flags & 0x1)
2443                         type = "reauth request";
2444                 if (flags & 0x2)
2445                         type = "key update request";
2446                 if (flags & 0x6) {
2447                         pairwise_error = true;
2448                         type = "pairwise_error";
2449                 }
2450                 if (flags & 0xe) {
2451                         group_error = true;
2452                         type = "group_error";
2453                 }
2454
2455                 devinfo(usbdev, "authentication indication: %s (0x%08x)", type,
2456                                 le32_to_cpu(auth_req->flags));
2457
2458                 if (pairwise_error || group_error) {
2459                         union iwreq_data wrqu;
2460                         struct iw_michaelmicfailure micfailure;
2461
2462                         memset(&micfailure, 0, sizeof(micfailure));
2463                         if (pairwise_error)
2464                                 micfailure.flags |= IW_MICFAILURE_PAIRWISE;
2465                         if (group_error)
2466                                 micfailure.flags |= IW_MICFAILURE_GROUP;
2467
2468                         memcpy(micfailure.src_addr.sa_data, auth_req->bssid,
2469                                 ETH_ALEN);
2470
2471                         memset(&wrqu, 0, sizeof(wrqu));
2472                         wrqu.data.length = sizeof(micfailure);
2473                         wireless_send_event(usbdev->net, IWEVMICHAELMICFAILURE,
2474                                                 &wrqu, (u8 *)&micfailure);
2475                 }
2476
2477                 buflen -= le32_to_cpu(auth_req->length);
2478                 buf += le32_to_cpu(auth_req->length);
2479         }
2480 }
2481
2482 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2483                                 struct ndis_80211_status_indication *indication,
2484                                 int len)
2485 {
2486         struct ndis_80211_pmkid_cand_list *cand_list;
2487         int list_len, expected_len, i;
2488
2489         if (len < offsetof(struct ndis_80211_status_indication, u) +
2490                                 sizeof(struct ndis_80211_pmkid_cand_list)) {
2491                 devinfo(usbdev, "pmkid candidate list indication: "
2492                                 "too short message (%i)", len);
2493                 return;
2494         }
2495
2496         list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2497                         sizeof(struct ndis_80211_pmkid_candidate);
2498         expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2499                         offsetof(struct ndis_80211_status_indication, u);
2500
2501         if (len < expected_len) {
2502                 devinfo(usbdev, "pmkid candidate list indication: "
2503                                 "list larger than buffer (%i < %i)",
2504                                 len, expected_len);
2505                 return;
2506         }
2507
2508         cand_list = &indication->u.cand_list;
2509
2510         devinfo(usbdev, "pmkid candidate list indication: "
2511                         "version %i, candidates %i",
2512                         le32_to_cpu(cand_list->version),
2513                         le32_to_cpu(cand_list->num_candidates));
2514
2515         if (le32_to_cpu(cand_list->version) != 1)
2516                 return;
2517
2518         for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2519                 struct iw_pmkid_cand pcand;
2520                 union iwreq_data wrqu;
2521                 struct ndis_80211_pmkid_candidate *cand =
2522                                                 &cand_list->candidate_list[i];
2523
2524                 devdbg(usbdev, "cand[%i]: flags: 0x%08x, bssid: %pM",
2525                                 i, le32_to_cpu(cand->flags), cand->bssid);
2526
2527                 memset(&pcand, 0, sizeof(pcand));
2528                 if (le32_to_cpu(cand->flags) & 0x01)
2529                         pcand.flags |= IW_PMKID_CAND_PREAUTH;
2530                 pcand.index = i;
2531                 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2532
2533                 memset(&wrqu, 0, sizeof(wrqu));
2534                 wrqu.data.length = sizeof(pcand);
2535                 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2536                                                                 (u8 *)&pcand);
2537         }
2538 }
2539
2540 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2541                         struct rndis_indicate *msg, int buflen)
2542 {
2543         struct ndis_80211_status_indication *indication;
2544         int len, offset;
2545
2546         offset = offsetof(struct rndis_indicate, status) +
2547                         le32_to_cpu(msg->offset);
2548         len = le32_to_cpu(msg->length);
2549
2550         if (len < 8) {
2551                 devinfo(usbdev, "media specific indication, "
2552                                 "ignore too short message (%i < 8)", len);
2553                 return;
2554         }
2555
2556         if (offset + len > buflen) {
2557                 devinfo(usbdev, "media specific indication, "
2558                                 "too large to fit to buffer (%i > %i)",
2559                                 offset + len, buflen);
2560                 return;
2561         }
2562
2563         indication = (void *)((u8 *)msg + offset);
2564
2565         switch (le32_to_cpu(indication->status_type)) {
2566         case NDIS_80211_STATUSTYPE_RADIOSTATE:
2567                 devinfo(usbdev, "radio state indication: %i",
2568                         le32_to_cpu(indication->u.radio_status));
2569                 return;
2570
2571         case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
2572                 devinfo(usbdev, "media stream mode indication: %i",
2573                         le32_to_cpu(indication->u.media_stream_mode));
2574                 return;
2575
2576         case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2577                 rndis_wlan_auth_indication(usbdev, indication, len);
2578                 return;
2579
2580         case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2581                 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2582                 return;
2583
2584         default:
2585                 devinfo(usbdev, "media specific indication: "
2586                                 "unknown status type 0x%08x",
2587                                 le32_to_cpu(indication->status_type));
2588         }
2589 }
2590
2591
2592 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
2593 {
2594         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2595         struct rndis_indicate *msg = ind;
2596
2597         switch (msg->status) {
2598         case RNDIS_STATUS_MEDIA_CONNECT:
2599                 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2600                         /* OID_802_11_ADD_KEY causes sometimes extra
2601                          * "media connect" indications which confuses driver
2602                          * and userspace to think that device is
2603                          * roaming/reassociating when it isn't.
2604                          */
2605                         devdbg(usbdev, "ignored OID_802_11_ADD_KEY triggered "
2606                                         "'media connect'");
2607                         return;
2608                 }
2609
2610                 usbnet_pause_rx(usbdev);
2611
2612                 devinfo(usbdev, "media connect");
2613
2614                 /* queue work to avoid recursive calls into rndis_command */
2615                 set_bit(WORK_LINK_UP, &priv->work_pending);
2616                 queue_work(priv->workqueue, &priv->work);
2617                 break;
2618
2619         case RNDIS_STATUS_MEDIA_DISCONNECT:
2620                 devinfo(usbdev, "media disconnect");
2621
2622                 /* queue work to avoid recursive calls into rndis_command */
2623                 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2624                 queue_work(priv->workqueue, &priv->work);
2625                 break;
2626
2627         case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2628                 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2629                 break;
2630
2631         default:
2632                 devinfo(usbdev, "indication: 0x%08x",
2633                                 le32_to_cpu(msg->status));
2634                 break;
2635         }
2636 }
2637
2638
2639 static int rndis_wlan_get_caps(struct usbnet *usbdev)
2640 {
2641         struct {
2642                 __le32  num_items;
2643                 __le32  items[8];
2644         } networks_supported;
2645         int len, retval, i, n;
2646         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2647
2648         /* determine supported modes */
2649         len = sizeof(networks_supported);
2650         retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2651                                                 &networks_supported, &len);
2652         if (retval >= 0) {
2653                 n = le32_to_cpu(networks_supported.num_items);
2654                 if (n > 8)
2655                         n = 8;
2656                 for (i = 0; i < n; i++) {
2657                         switch (le32_to_cpu(networks_supported.items[i])) {
2658                         case NDIS_80211_TYPE_FREQ_HOP:
2659                         case NDIS_80211_TYPE_DIRECT_SEQ:
2660                                 priv->caps |= CAP_MODE_80211B;
2661                                 break;
2662                         case NDIS_80211_TYPE_OFDM_A:
2663                                 priv->caps |= CAP_MODE_80211A;
2664                                 break;
2665                         case NDIS_80211_TYPE_OFDM_G:
2666                                 priv->caps |= CAP_MODE_80211G;
2667                                 break;
2668                         }
2669                 }
2670         }
2671
2672         return retval;
2673 }
2674
2675
2676 #define STATS_UPDATE_JIFFIES (HZ)
2677 static void rndis_update_wireless_stats(struct work_struct *work)
2678 {
2679         struct rndis_wlan_private *priv =
2680                 container_of(work, struct rndis_wlan_private, stats_work.work);
2681         struct usbnet *usbdev = priv->usbdev;
2682         struct iw_statistics iwstats;
2683         __le32 rssi, tmp;
2684         int len, ret, j;
2685         unsigned long flags;
2686         int update_jiffies = STATS_UPDATE_JIFFIES;
2687         void *buf;
2688
2689         spin_lock_irqsave(&priv->stats_lock, flags);
2690         memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2691         spin_unlock_irqrestore(&priv->stats_lock, flags);
2692
2693         /* only update stats when connected */
2694         if (!is_associated(usbdev)) {
2695                 iwstats.qual.qual = 0;
2696                 iwstats.qual.level = 0;
2697                 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2698                                 | IW_QUAL_LEVEL_UPDATED
2699                                 | IW_QUAL_NOISE_INVALID
2700                                 | IW_QUAL_QUAL_INVALID
2701                                 | IW_QUAL_LEVEL_INVALID;
2702                 goto end;
2703         }
2704
2705         len = sizeof(rssi);
2706         ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2707
2708         devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2709                                                         le32_to_cpu(rssi));
2710         if (ret == 0) {
2711                 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2712                 iwstats.qual.qual  = level_to_qual(le32_to_cpu(rssi));
2713                 iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
2714                 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2715                                 | IW_QUAL_LEVEL_UPDATED
2716                                 | IW_QUAL_NOISE_INVALID;
2717         }
2718
2719         memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2720
2721         len = sizeof(tmp);
2722         ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2723         if (ret == 0)
2724                 iwstats.discard.misc += le32_to_cpu(tmp);
2725
2726         len = sizeof(tmp);
2727         ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2728         if (ret == 0)
2729                 iwstats.discard.misc += le32_to_cpu(tmp);
2730
2731         len = sizeof(tmp);
2732         ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2733         if (ret == 0)
2734                 iwstats.discard.misc += le32_to_cpu(tmp);
2735
2736         /* Workaround transfer stalls on poor quality links.
2737          * TODO: find right way to fix these stalls (as stalls do not happen
2738          * with ndiswrapper/windows driver). */
2739         if (iwstats.qual.qual <= 25) {
2740                 /* Decrease stats worker interval to catch stalls.
2741                  * faster. Faster than 400-500ms causes packet loss,
2742                  * Slower doesn't catch stalls fast enough.
2743                  */
2744                 j = msecs_to_jiffies(priv->param_workaround_interval);
2745                 if (j > STATS_UPDATE_JIFFIES)
2746                         j = STATS_UPDATE_JIFFIES;
2747                 else if (j <= 0)
2748                         j = 1;
2749                 update_jiffies = j;
2750
2751                 /* Send scan OID. Use of both OIDs is required to get device
2752                  * working.
2753                  */
2754                 tmp = cpu_to_le32(1);
2755                 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2756                                                                 sizeof(tmp));
2757
2758                 len = CONTROL_BUFFER_SIZE;
2759                 buf = kmalloc(len, GFP_KERNEL);
2760                 if (!buf)
2761                         goto end;
2762
2763                 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2764                 kfree(buf);
2765         }
2766 end:
2767         spin_lock_irqsave(&priv->stats_lock, flags);
2768         memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2769         spin_unlock_irqrestore(&priv->stats_lock, flags);
2770
2771         if (update_jiffies >= HZ)
2772                 update_jiffies = round_jiffies_relative(update_jiffies);
2773         else {
2774                 j = round_jiffies_relative(update_jiffies);
2775                 if (abs(j - update_jiffies) <= 10)
2776                         update_jiffies = j;
2777         }
2778
2779         queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2780 }
2781
2782
2783 static int bcm4320a_early_init(struct usbnet *usbdev)
2784 {
2785         /* bcm4320a doesn't handle configuration parameters well. Try
2786          * set any and you get partially zeroed mac and broken device.
2787          */
2788
2789         return 0;
2790 }
2791
2792
2793 static int bcm4320b_early_init(struct usbnet *usbdev)
2794 {
2795         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2796         char buf[8];
2797
2798         /* Early initialization settings, setting these won't have effect
2799          * if called after generic_rndis_bind().
2800          */
2801
2802         priv->param_country[0] = modparam_country[0];
2803         priv->param_country[1] = modparam_country[1];
2804         priv->param_country[2] = 0;
2805         priv->param_frameburst   = modparam_frameburst;
2806         priv->param_afterburner  = modparam_afterburner;
2807         priv->param_power_save   = modparam_power_save;
2808         priv->param_power_output = modparam_power_output;
2809         priv->param_roamtrigger  = modparam_roamtrigger;
2810         priv->param_roamdelta    = modparam_roamdelta;
2811
2812         priv->param_country[0] = toupper(priv->param_country[0]);
2813         priv->param_country[1] = toupper(priv->param_country[1]);
2814         /* doesn't support EU as country code, use FI instead */
2815         if (!strcmp(priv->param_country, "EU"))
2816                 strcpy(priv->param_country, "FI");
2817
2818         if (priv->param_power_save < 0)
2819                 priv->param_power_save = 0;
2820         else if (priv->param_power_save > 2)
2821                 priv->param_power_save = 2;
2822
2823         if (priv->param_power_output < 0)
2824                 priv->param_power_output = 0;
2825         else if (priv->param_power_output > 3)
2826                 priv->param_power_output = 3;
2827
2828         if (priv->param_roamtrigger < -80)
2829                 priv->param_roamtrigger = -80;
2830         else if (priv->param_roamtrigger > -60)
2831                 priv->param_roamtrigger = -60;
2832
2833         if (priv->param_roamdelta < 0)
2834                 priv->param_roamdelta = 0;
2835         else if (priv->param_roamdelta > 2)
2836                 priv->param_roamdelta = 2;
2837
2838         if (modparam_workaround_interval < 0)
2839                 priv->param_workaround_interval = 500;
2840         else
2841                 priv->param_workaround_interval = modparam_workaround_interval;
2842
2843         rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2844         rndis_set_config_parameter_str(usbdev, "FrameBursting",
2845                                         priv->param_frameburst ? "1" : "0");
2846         rndis_set_config_parameter_str(usbdev, "Afterburner",
2847                                         priv->param_afterburner ? "1" : "0");
2848         sprintf(buf, "%d", priv->param_power_save);
2849         rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2850         sprintf(buf, "%d", priv->param_power_output);
2851         rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2852         sprintf(buf, "%d", priv->param_roamtrigger);
2853         rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2854         sprintf(buf, "%d", priv->param_roamdelta);
2855         rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2856
2857         return 0;
2858 }
2859
2860 /* same as rndis_netdev_ops but with local multicast handler */
2861 static const struct net_device_ops rndis_wlan_netdev_ops = {
2862         .ndo_open               = usbnet_open,
2863         .ndo_stop               = usbnet_stop,
2864         .ndo_start_xmit         = usbnet_start_xmit,
2865         .ndo_tx_timeout         = usbnet_tx_timeout,
2866         .ndo_set_mac_address    = eth_mac_addr,
2867         .ndo_validate_addr      = eth_validate_addr,
2868         .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
2869 };
2870
2871
2872 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
2873 {
2874         struct wiphy *wiphy;
2875         struct rndis_wlan_private *priv;
2876         int retval, len;
2877         __le32 tmp;
2878
2879         /* allocate wiphy and rndis private data
2880          * NOTE: We only support a single virtual interface, so wiphy
2881          * and wireless_dev are somewhat synonymous for this device.
2882          */
2883         wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
2884         if (!wiphy)
2885                 return -ENOMEM;
2886
2887         priv = wiphy_priv(wiphy);
2888         usbdev->net->ieee80211_ptr = &priv->wdev;
2889         priv->wdev.wiphy = wiphy;
2890         priv->wdev.iftype = NL80211_IFTYPE_STATION;
2891
2892         /* These have to be initialized before calling generic_rndis_bind().
2893          * Otherwise we'll be in big trouble in rndis_wlan_early_init().
2894          */
2895         usbdev->driver_priv = priv;
2896         usbdev->net->wireless_handlers = &rndis_iw_handlers;
2897         priv->usbdev = usbdev;
2898
2899         mutex_init(&priv->command_lock);
2900         spin_lock_init(&priv->stats_lock);
2901
2902         /* because rndis_command() sleeps we need to use workqueue */
2903         priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2904         INIT_WORK(&priv->work, rndis_wlan_worker);
2905         INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2906         INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2907
2908         /* try bind rndis_host */
2909         retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2910         if (retval < 0)
2911                 goto fail;
2912
2913         /* generic_rndis_bind set packet filter to multicast_all+
2914          * promisc mode which doesn't work well for our devices (device
2915          * picks up rssi to closest station instead of to access point).
2916          *
2917          * rndis_host wants to avoid all OID as much as possible
2918          * so do promisc/multicast handling in rndis_wlan.
2919          */
2920         usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
2921
2922         tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2923         retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2924                                                                 sizeof(tmp));
2925
2926         len = sizeof(tmp);
2927         retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2928                                                                 &len);
2929         priv->multicast_size = le32_to_cpu(tmp);
2930         if (retval < 0 || priv->multicast_size < 0)
2931                 priv->multicast_size = 0;
2932         if (priv->multicast_size > 0)
2933                 usbdev->net->flags |= IFF_MULTICAST;
2934         else
2935                 usbdev->net->flags &= ~IFF_MULTICAST;
2936
2937         priv->iwstats.qual.qual = 0;
2938         priv->iwstats.qual.level = 0;
2939         priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2940                                         | IW_QUAL_LEVEL_UPDATED
2941                                         | IW_QUAL_NOISE_INVALID
2942                                         | IW_QUAL_QUAL_INVALID
2943                                         | IW_QUAL_LEVEL_INVALID;
2944
2945         /* fill-out wiphy structure and register w/ cfg80211 */
2946         memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2947         wiphy->privid = rndis_wiphy_privid;
2948         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2949                                         | BIT(NL80211_IFTYPE_ADHOC);
2950         wiphy->max_scan_ssids = 1;
2951
2952         /* TODO: fill-out band/encr information based on priv->caps */
2953         rndis_wlan_get_caps(usbdev);
2954
2955         memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2956         memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2957         priv->band.channels = priv->channels;
2958         priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2959         priv->band.bitrates = priv->rates;
2960         priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2961         wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2962         wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2963
2964         memcpy(priv->cipher_suites, rndis_cipher_suites,
2965                                                 sizeof(rndis_cipher_suites));
2966         wiphy->cipher_suites = priv->cipher_suites;
2967         wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
2968
2969         set_wiphy_dev(wiphy, &usbdev->udev->dev);
2970
2971         if (wiphy_register(wiphy)) {
2972                 retval = -ENODEV;
2973                 goto fail;
2974         }
2975
2976         set_default_iw_params(usbdev);
2977
2978         /* set default rts/frag */
2979         rndis_set_wiphy_params(wiphy,
2980                         WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
2981
2982         /* turn radio on */
2983         priv->radio_on = 1;
2984         disassociate(usbdev, 1);
2985         netif_carrier_off(usbdev->net);
2986
2987         return 0;
2988
2989 fail:
2990         cancel_delayed_work_sync(&priv->stats_work);
2991         cancel_delayed_work_sync(&priv->scan_work);
2992         cancel_work_sync(&priv->work);
2993         flush_workqueue(priv->workqueue);
2994         destroy_workqueue(priv->workqueue);
2995
2996         wiphy_free(wiphy);
2997         return retval;
2998 }
2999
3000
3001 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3002 {
3003         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3004
3005         /* turn radio off */
3006         disassociate(usbdev, 0);
3007
3008         cancel_delayed_work_sync(&priv->stats_work);
3009         cancel_delayed_work_sync(&priv->scan_work);
3010         cancel_work_sync(&priv->work);
3011         flush_workqueue(priv->workqueue);
3012         destroy_workqueue(priv->workqueue);
3013
3014         if (priv && priv->wpa_ie_len)
3015                 kfree(priv->wpa_ie);
3016
3017         rndis_unbind(usbdev, intf);
3018
3019         wiphy_unregister(priv->wdev.wiphy);
3020         wiphy_free(priv->wdev.wiphy);
3021 }
3022
3023
3024 static int rndis_wlan_reset(struct usbnet *usbdev)
3025 {
3026         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3027         int retval;
3028
3029         devdbg(usbdev, "rndis_wlan_reset");
3030
3031         retval = rndis_reset(usbdev);
3032         if (retval)
3033                 devwarn(usbdev, "rndis_reset() failed: %d", retval);
3034
3035         /* rndis_reset cleared multicast list, so restore here.
3036            (set_multicast_list() also turns on current packet filter) */
3037         set_multicast_list(usbdev);
3038
3039         queue_delayed_work(priv->workqueue, &priv->stats_work,
3040                 round_jiffies_relative(STATS_UPDATE_JIFFIES));
3041
3042         return deauthenticate(usbdev);
3043 }
3044
3045
3046 static int rndis_wlan_stop(struct usbnet *usbdev)
3047 {
3048         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3049         int retval;
3050         __le32 filter;
3051
3052         devdbg(usbdev, "rndis_wlan_stop");
3053
3054         retval = disassociate(usbdev, 0);
3055
3056         priv->work_pending = 0;
3057         cancel_delayed_work_sync(&priv->stats_work);
3058         cancel_delayed_work_sync(&priv->scan_work);
3059         cancel_work_sync(&priv->work);
3060         flush_workqueue(priv->workqueue);
3061
3062         if (priv->scan_request) {
3063                 cfg80211_scan_done(priv->scan_request, true);
3064                 priv->scan_request = NULL;
3065         }
3066
3067         /* Set current packet filter zero to block receiving data packets from
3068            device. */
3069         filter = 0;
3070         rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3071                                                                 sizeof(filter));
3072
3073         return retval;
3074 }
3075
3076
3077 static const struct driver_info bcm4320b_info = {
3078         .description =  "Wireless RNDIS device, BCM4320b based",
3079         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3080                                 FLAG_AVOID_UNLINK_URBS,
3081         .bind =         rndis_wlan_bind,
3082         .unbind =       rndis_wlan_unbind,
3083         .status =       rndis_status,
3084         .rx_fixup =     rndis_rx_fixup,
3085         .tx_fixup =     rndis_tx_fixup,
3086         .reset =        rndis_wlan_reset,
3087         .stop =         rndis_wlan_stop,
3088         .early_init =   bcm4320b_early_init,
3089         .indication =   rndis_wlan_indication,
3090 };
3091
3092 static const struct driver_info bcm4320a_info = {
3093         .description =  "Wireless RNDIS device, BCM4320a based",
3094         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3095                                 FLAG_AVOID_UNLINK_URBS,
3096         .bind =         rndis_wlan_bind,
3097         .unbind =       rndis_wlan_unbind,
3098         .status =       rndis_status,
3099         .rx_fixup =     rndis_rx_fixup,
3100         .tx_fixup =     rndis_tx_fixup,
3101         .reset =        rndis_wlan_reset,
3102         .stop =         rndis_wlan_stop,
3103         .early_init =   bcm4320a_early_init,
3104         .indication =   rndis_wlan_indication,
3105 };
3106
3107 static const struct driver_info rndis_wlan_info = {
3108         .description =  "Wireless RNDIS device",
3109         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3110                                 FLAG_AVOID_UNLINK_URBS,
3111         .bind =         rndis_wlan_bind,
3112         .unbind =       rndis_wlan_unbind,
3113         .status =       rndis_status,
3114         .rx_fixup =     rndis_rx_fixup,
3115         .tx_fixup =     rndis_tx_fixup,
3116         .reset =        rndis_wlan_reset,
3117         .stop =         rndis_wlan_stop,
3118         .early_init =   bcm4320a_early_init,
3119         .indication =   rndis_wlan_indication,
3120 };
3121
3122 /*-------------------------------------------------------------------------*/
3123
3124 static const struct usb_device_id products [] = {
3125 #define RNDIS_MASTER_INTERFACE \
3126         .bInterfaceClass        = USB_CLASS_COMM, \
3127         .bInterfaceSubClass     = 2 /* ACM */, \
3128         .bInterfaceProtocol     = 0x0ff
3129
3130 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3131  * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3132  */
3133 {
3134         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3135                           | USB_DEVICE_ID_MATCH_DEVICE,
3136         .idVendor               = 0x0411,
3137         .idProduct              = 0x00bc,       /* Buffalo WLI-U2-KG125S */
3138         RNDIS_MASTER_INTERFACE,
3139         .driver_info            = (unsigned long) &bcm4320b_info,
3140 }, {
3141         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3142                           | USB_DEVICE_ID_MATCH_DEVICE,
3143         .idVendor               = 0x0baf,
3144         .idProduct              = 0x011b,       /* U.S. Robotics USR5421 */
3145         RNDIS_MASTER_INTERFACE,
3146         .driver_info            = (unsigned long) &bcm4320b_info,
3147 }, {
3148         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3149                           | USB_DEVICE_ID_MATCH_DEVICE,
3150         .idVendor               = 0x050d,
3151         .idProduct              = 0x011b,       /* Belkin F5D7051 */
3152         RNDIS_MASTER_INTERFACE,
3153         .driver_info            = (unsigned long) &bcm4320b_info,
3154 }, {
3155         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3156                           | USB_DEVICE_ID_MATCH_DEVICE,
3157         .idVendor               = 0x1799,       /* Belkin has two vendor ids */
3158         .idProduct              = 0x011b,       /* Belkin F5D7051 */
3159         RNDIS_MASTER_INTERFACE,
3160         .driver_info            = (unsigned long) &bcm4320b_info,
3161 }, {
3162         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3163                           | USB_DEVICE_ID_MATCH_DEVICE,
3164         .idVendor               = 0x13b1,
3165         .idProduct              = 0x0014,       /* Linksys WUSB54GSv2 */
3166         RNDIS_MASTER_INTERFACE,
3167         .driver_info            = (unsigned long) &bcm4320b_info,
3168 }, {
3169         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3170                           | USB_DEVICE_ID_MATCH_DEVICE,
3171         .idVendor               = 0x13b1,
3172         .idProduct              = 0x0026,       /* Linksys WUSB54GSC */
3173         RNDIS_MASTER_INTERFACE,
3174         .driver_info            = (unsigned long) &bcm4320b_info,
3175 }, {
3176         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3177                           | USB_DEVICE_ID_MATCH_DEVICE,
3178         .idVendor               = 0x0b05,
3179         .idProduct              = 0x1717,       /* Asus WL169gE */
3180         RNDIS_MASTER_INTERFACE,
3181         .driver_info            = (unsigned long) &bcm4320b_info,
3182 }, {
3183         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3184                           | USB_DEVICE_ID_MATCH_DEVICE,
3185         .idVendor               = 0x0a5c,
3186         .idProduct              = 0xd11b,       /* Eminent EM4045 */
3187         RNDIS_MASTER_INTERFACE,
3188         .driver_info            = (unsigned long) &bcm4320b_info,
3189 }, {
3190         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3191                           | USB_DEVICE_ID_MATCH_DEVICE,
3192         .idVendor               = 0x1690,
3193         .idProduct              = 0x0715,       /* BT Voyager 1055 */
3194         RNDIS_MASTER_INTERFACE,
3195         .driver_info            = (unsigned long) &bcm4320b_info,
3196 },
3197 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3198  * parameters available, hardware probably contain older firmware version with
3199  * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3200  */
3201 {
3202         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3203                           | USB_DEVICE_ID_MATCH_DEVICE,
3204         .idVendor               = 0x13b1,
3205         .idProduct              = 0x000e,       /* Linksys WUSB54GSv1 */
3206         RNDIS_MASTER_INTERFACE,
3207         .driver_info            = (unsigned long) &bcm4320a_info,
3208 }, {
3209         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3210                           | USB_DEVICE_ID_MATCH_DEVICE,
3211         .idVendor               = 0x0baf,
3212         .idProduct              = 0x0111,       /* U.S. Robotics USR5420 */
3213         RNDIS_MASTER_INTERFACE,
3214         .driver_info            = (unsigned long) &bcm4320a_info,
3215 }, {
3216         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3217                           | USB_DEVICE_ID_MATCH_DEVICE,
3218         .idVendor               = 0x0411,
3219         .idProduct              = 0x004b,       /* BUFFALO WLI-USB-G54 */
3220         RNDIS_MASTER_INTERFACE,
3221         .driver_info            = (unsigned long) &bcm4320a_info,
3222 },
3223 /* Generic Wireless RNDIS devices that we don't have exact
3224  * idVendor/idProduct/chip yet.
3225  */
3226 {
3227         /* RNDIS is MSFT's un-official variant of CDC ACM */
3228         USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3229         .driver_info = (unsigned long) &rndis_wlan_info,
3230 }, {
3231         /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3232         USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3233         .driver_info = (unsigned long) &rndis_wlan_info,
3234 },
3235         { },            // END
3236 };
3237 MODULE_DEVICE_TABLE(usb, products);
3238
3239 static struct usb_driver rndis_wlan_driver = {
3240         .name =         "rndis_wlan",
3241         .id_table =     products,
3242         .probe =        usbnet_probe,
3243         .disconnect =   usbnet_disconnect,
3244         .suspend =      usbnet_suspend,
3245         .resume =       usbnet_resume,
3246 };
3247
3248 static int __init rndis_wlan_init(void)
3249 {
3250         return usb_register(&rndis_wlan_driver);
3251 }
3252 module_init(rndis_wlan_init);
3253
3254 static void __exit rndis_wlan_exit(void)
3255 {
3256         usb_deregister(&rndis_wlan_driver);
3257 }
3258 module_exit(rndis_wlan_exit);
3259
3260 MODULE_AUTHOR("Bjorge Dijkstra");
3261 MODULE_AUTHOR("Jussi Kivilinna");
3262 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3263 MODULE_LICENSE("GPL");
3264