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;
  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 (0=disabled) (default: 0)");
  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                 __le32                                  media_stream_mode;
 257                 __le32                                  radio_status;
 258                 struct ndis_80211_auth_request          auth_request[0];
 259                 struct ndis_80211_pmkid_cand_list       cand_list;
 260         } u;
 261 } __attribute__((packed));
 262
 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 /*
 362  *  private data
 363  */
 364 #define NET_TYPE_11FB   0
 365
 366 #define CAP_MODE_80211A         1
 367 #define CAP_MODE_80211B         2
 368 #define CAP_MODE_80211G         4
 369 #define CAP_MODE_MASK           7
 370
 371 #define WORK_LINK_UP            (1<<0)
 372 #define WORK_LINK_DOWN          (1<<1)
 373 #define WORK_SET_MULTICAST_LIST (1<<2)
 374
 375 #define RNDIS_WLAN_ALG_NONE     0
 376 #define RNDIS_WLAN_ALG_WEP      (1<<0)
 377 #define RNDIS_WLAN_ALG_TKIP     (1<<1)
 378 #define RNDIS_WLAN_ALG_CCMP     (1<<2)
 379
 380 #define RNDIS_WLAN_KEY_MGMT_NONE        0
 381 #define RNDIS_WLAN_KEY_MGMT_802_1X      (1<<0)
 382 #define RNDIS_WLAN_KEY_MGMT_PSK         (1<<1)
 383
 384 #define COMMAND_BUFFER_SIZE     (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
 385
 386 static const struct ieee80211_channel rndis_channels[] = {
 387         { .center_freq = 2412 },
 388         { .center_freq = 2417 },
 389         { .center_freq = 2422 },
 390         { .center_freq = 2427 },
 391         { .center_freq = 2432 },
 392         { .center_freq = 2437 },
 393         { .center_freq = 2442 },
 394         { .center_freq = 2447 },
 395         { .center_freq = 2452 },
 396         { .center_freq = 2457 },
 397         { .center_freq = 2462 },
 398         { .center_freq = 2467 },
 399         { .center_freq = 2472 },
 400         { .center_freq = 2484 },
 401 };
 402
 403 static const struct ieee80211_rate rndis_rates[] = {
 404         { .bitrate = 10 },
 405         { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 406         { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 407         { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 408         { .bitrate = 60 },
 409         { .bitrate = 90 },
 410         { .bitrate = 120 },
 411         { .bitrate = 180 },
 412         { .bitrate = 240 },
 413         { .bitrate = 360 },
 414         { .bitrate = 480 },
 415         { .bitrate = 540 }
 416 };
 417
 418 static const u32 rndis_cipher_suites[] = {
 419         WLAN_CIPHER_SUITE_WEP40,
 420         WLAN_CIPHER_SUITE_WEP104,
 421         WLAN_CIPHER_SUITE_TKIP,
 422         WLAN_CIPHER_SUITE_CCMP,
 423 };
 424
 425 struct rndis_wlan_encr_key {
 426         int len;
 427         u32 cipher;
 428         u8 material[32];
 429         u8 bssid[ETH_ALEN];
 430         bool pairwise;
 431         bool tx_key;
 432 };
 433
 434 /* RNDIS device private data */
 435 struct rndis_wlan_private {
 436         struct usbnet *usbdev;
 437
 438         struct wireless_dev wdev;
 439
 440         struct cfg80211_scan_request *scan_request;
 441
 442         struct workqueue_struct *workqueue;
 443         struct delayed_work dev_poller_work;
 444         struct delayed_work scan_work;
 445         struct work_struct work;
 446         struct mutex command_lock;
 447         unsigned long work_pending;
 448         int last_qual;
 449
 450         struct ieee80211_supported_band band;
 451         struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
 452         struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
 453         u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
 454
 455         int caps;
 456         int multicast_size;
 457
 458         /* module parameters */
 459         char param_country[4];
 460         int  param_frameburst;
 461         int  param_afterburner;
 462         int  param_power_save;
 463         int  param_power_output;
 464         int  param_roamtrigger;
 465         int  param_roamdelta;
 466         u32  param_workaround_interval;
 467
 468         /* hardware state */
 469         bool radio_on;
 470         int infra_mode;
 471         bool connected;
 472         u8 bssid[ETH_ALEN];
 473         struct ndis_80211_ssid essid;
 474         __le32 current_command_oid;
 475
 476         /* encryption stuff */
 477         int  encr_tx_key_index;
 478         struct rndis_wlan_encr_key encr_keys[4];
 479         enum nl80211_auth_type wpa_auth_type;
 480         int  wpa_version;
 481         int  wpa_keymgmt;
 482         int  wpa_ie_len;
 483         u8  *wpa_ie;
 484         int  wpa_cipher_pair;
 485         int  wpa_cipher_group;
 486
 487         u8 command_buffer[COMMAND_BUFFER_SIZE];
 488 };
 489
 490 /*
 491  * cfg80211 ops
 492  */
 493 static int rndis_change_virtual_intf(struct wiphy *wiphy,
 494                                         struct net_device *dev,
 495                                         enum nl80211_iftype type, u32 *flags,
 496                                         struct vif_params *params);
 497
 498 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
 499                         struct cfg80211_scan_request *request);
 500
 501 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
 502
 503 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
 504                                 int dbm);
 505 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
 506
 507 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
 508                                 struct cfg80211_connect_params *sme);
 509
 510 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
 511                                 u16 reason_code);
 512
 513 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
 514                                         struct cfg80211_ibss_params *params);
 515
 516 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
 517
 518 static int rndis_set_channel(struct wiphy *wiphy,
 519         struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
 520
 521 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
 522                                         u8 key_index, const u8 *mac_addr,
 523                                         struct key_params *params);
 524
 525 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
 526                                         u8 key_index, const u8 *mac_addr);
 527
 528 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 529                                                                 u8 key_index);
 530
 531 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
 532                                         u8 *mac, struct station_info *sinfo);
 533
 534 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
 535                                int idx, u8 *mac, struct station_info *sinfo);
 536
 537 static struct cfg80211_ops rndis_config_ops = {
 538         .change_virtual_intf = rndis_change_virtual_intf,
 539         .scan = rndis_scan,
 540         .set_wiphy_params = rndis_set_wiphy_params,
 541         .set_tx_power = rndis_set_tx_power,
 542         .get_tx_power = rndis_get_tx_power,
 543         .connect = rndis_connect,
 544         .disconnect = rndis_disconnect,
 545         .join_ibss = rndis_join_ibss,
 546         .leave_ibss = rndis_leave_ibss,
 547         .set_channel = rndis_set_channel,
 548         .add_key = rndis_add_key,
 549         .del_key = rndis_del_key,
 550         .set_default_key = rndis_set_default_key,
 551         .get_station = rndis_get_station,
 552         .dump_station = rndis_dump_station,
 553 };
 554
 555 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
 556
 557
 558 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
 559 {
 560         return (struct rndis_wlan_private *)dev->driver_priv;
 561 }
 562
 563 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
 564 {
 565         switch (priv->param_power_output) {
 566         default:
 567         case 3:
 568                 return BCM4320_DEFAULT_TXPOWER_DBM_100;
 569         case 2:
 570                 return BCM4320_DEFAULT_TXPOWER_DBM_75;
 571         case 1:
 572                 return BCM4320_DEFAULT_TXPOWER_DBM_50;
 573         case 0:
 574                 return BCM4320_DEFAULT_TXPOWER_DBM_25;
 575         }
 576 }
 577
 578 static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
 579 {
 580         int cipher = priv->encr_keys[idx].cipher;
 581
 582         return (cipher == WLAN_CIPHER_SUITE_CCMP ||
 583                 cipher == WLAN_CIPHER_SUITE_TKIP);
 584 }
 585
 586 static int rndis_cipher_to_alg(u32 cipher)
 587 {
 588         switch (cipher) {
 589         default:
 590                 return RNDIS_WLAN_ALG_NONE;
 591         case WLAN_CIPHER_SUITE_WEP40:
 592         case WLAN_CIPHER_SUITE_WEP104:
 593                 return RNDIS_WLAN_ALG_WEP;
 594         case WLAN_CIPHER_SUITE_TKIP:
 595                 return RNDIS_WLAN_ALG_TKIP;
 596         case WLAN_CIPHER_SUITE_CCMP:
 597                 return RNDIS_WLAN_ALG_CCMP;
 598         }
 599 }
 600
 601 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
 602 {
 603         switch (akm_suite) {
 604         default:
 605                 return RNDIS_WLAN_KEY_MGMT_NONE;
 606         case WLAN_AKM_SUITE_8021X:
 607                 return RNDIS_WLAN_KEY_MGMT_802_1X;
 608         case WLAN_AKM_SUITE_PSK:
 609                 return RNDIS_WLAN_KEY_MGMT_PSK;
 610         }
 611 }
 612
 613 #ifdef DEBUG
 614 static const char *oid_to_string(__le32 oid)
 615 {
 616         switch (oid) {
 617 #define OID_STR(oid) case oid: return(#oid)
 618                 /* from rndis_host.h */
 619                 OID_STR(OID_802_3_PERMANENT_ADDRESS);
 620                 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
 621                 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
 622                 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
 623
 624                 /* from rndis_wlan.c */
 625                 OID_STR(OID_GEN_LINK_SPEED);
 626                 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
 627
 628                 OID_STR(OID_GEN_XMIT_OK);
 629                 OID_STR(OID_GEN_RCV_OK);
 630                 OID_STR(OID_GEN_XMIT_ERROR);
 631                 OID_STR(OID_GEN_RCV_ERROR);
 632                 OID_STR(OID_GEN_RCV_NO_BUFFER);
 633
 634                 OID_STR(OID_802_3_CURRENT_ADDRESS);
 635                 OID_STR(OID_802_3_MULTICAST_LIST);
 636                 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
 637
 638                 OID_STR(OID_802_11_BSSID);
 639                 OID_STR(OID_802_11_SSID);
 640                 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
 641                 OID_STR(OID_802_11_ADD_WEP);
 642                 OID_STR(OID_802_11_REMOVE_WEP);
 643                 OID_STR(OID_802_11_DISASSOCIATE);
 644                 OID_STR(OID_802_11_AUTHENTICATION_MODE);
 645                 OID_STR(OID_802_11_PRIVACY_FILTER);
 646                 OID_STR(OID_802_11_BSSID_LIST_SCAN);
 647                 OID_STR(OID_802_11_ENCRYPTION_STATUS);
 648                 OID_STR(OID_802_11_ADD_KEY);
 649                 OID_STR(OID_802_11_REMOVE_KEY);
 650                 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
 651                 OID_STR(OID_802_11_PMKID);
 652                 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
 653                 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
 654                 OID_STR(OID_802_11_TX_POWER_LEVEL);
 655                 OID_STR(OID_802_11_RSSI);
 656                 OID_STR(OID_802_11_RSSI_TRIGGER);
 657                 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
 658                 OID_STR(OID_802_11_RTS_THRESHOLD);
 659                 OID_STR(OID_802_11_SUPPORTED_RATES);
 660                 OID_STR(OID_802_11_CONFIGURATION);
 661                 OID_STR(OID_802_11_BSSID_LIST);
 662 #undef OID_STR
 663         }
 664
 665         return "?";
 666 }
 667 #else
 668 static const char *oid_to_string(__le32 oid)
 669 {
 670         return "?";
 671 }
 672 #endif
 673
 674 /* translate error code */
 675 static int rndis_error_status(__le32 rndis_status)
 676 {
 677         int ret = -EINVAL;
 678         switch (rndis_status) {
 679         case RNDIS_STATUS_SUCCESS:
 680                 ret = 0;
 681                 break;
 682         case RNDIS_STATUS_FAILURE:
 683         case RNDIS_STATUS_INVALID_DATA:
 684                 ret = -EINVAL;
 685                 break;
 686         case RNDIS_STATUS_NOT_SUPPORTED:
 687                 ret = -EOPNOTSUPP;
 688                 break;
 689         case RNDIS_STATUS_ADAPTER_NOT_READY:
 690         case RNDIS_STATUS_ADAPTER_NOT_OPEN:
 691                 ret = -EBUSY;
 692                 break;
 693         }
 694         return ret;
 695 }
 696
 697 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
 698 {
 699         struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
 700         union {
 701                 void                    *buf;
 702                 struct rndis_msg_hdr    *header;
 703                 struct rndis_query      *get;
 704                 struct rndis_query_c    *get_c;
 705         } u;
 706         int ret, buflen;
 707
 708         buflen = *len + sizeof(*u.get);
 709         if (buflen < CONTROL_BUFFER_SIZE)
 710                 buflen = CONTROL_BUFFER_SIZE;
 711
 712         if (buflen > COMMAND_BUFFER_SIZE) {
 713                 u.buf = kmalloc(buflen, GFP_KERNEL);
 714                 if (!u.buf)
 715                         return -ENOMEM;
 716         } else {
 717                 u.buf = priv->command_buffer;
 718         }
 719
 720         mutex_lock(&priv->command_lock);
 721
 722         memset(u.get, 0, sizeof *u.get);
 723         u.get->msg_type = RNDIS_MSG_QUERY;
 724         u.get->msg_len = cpu_to_le32(sizeof *u.get);
 725         u.get->oid = oid;
 726
 727         priv->current_command_oid = oid;
 728         ret = rndis_command(dev, u.header, buflen);
 729         priv->current_command_oid = 0;
 730         if (ret < 0)
 731                 devdbg(dev, "rndis_query_oid(%s): rndis_command() failed, %d "
 732                         "(%08x)", oid_to_string(oid), ret,
 733                         le32_to_cpu(u.get_c->status));
 734
 735         if (ret == 0) {
 736                 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
 737
 738                 ret = le32_to_cpu(u.get_c->len);
 739                 if (ret > *len)
 740                         *len = ret;
 741
 742                 ret = rndis_error_status(u.get_c->status);
 743                 if (ret < 0)
 744                         devdbg(dev, "rndis_query_oid(%s): device returned "
 745                                 "error,  0x%08x (%d)", oid_to_string(oid),
 746                                 le32_to_cpu(u.get_c->status), ret);
 747         }
 748
 749         mutex_unlock(&priv->command_lock);
 750
 751         if (u.buf != priv->command_buffer)
 752                 kfree(u.buf);
 753         return ret;
 754 }
 755
 756 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
 757 {
 758         struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
 759         union {
 760                 void                    *buf;
 761                 struct rndis_msg_hdr    *header;
 762                 struct rndis_set        *set;
 763                 struct rndis_set_c      *set_c;
 764         } u;
 765         int ret, buflen;
 766
 767         buflen = len + sizeof(*u.set);
 768         if (buflen < CONTROL_BUFFER_SIZE)
 769                 buflen = CONTROL_BUFFER_SIZE;
 770
 771         if (buflen > COMMAND_BUFFER_SIZE) {
 772                 u.buf = kmalloc(buflen, GFP_KERNEL);
 773                 if (!u.buf)
 774                         return -ENOMEM;
 775         } else {
 776                 u.buf = priv->command_buffer;
 777         }
 778
 779         mutex_lock(&priv->command_lock);
 780
 781         memset(u.set, 0, sizeof *u.set);
 782         u.set->msg_type = RNDIS_MSG_SET;
 783         u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
 784         u.set->oid = oid;
 785         u.set->len = cpu_to_le32(len);
 786         u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
 787         u.set->handle = cpu_to_le32(0);
 788         memcpy(u.buf + sizeof(*u.set), data, len);
 789
 790         priv->current_command_oid = oid;
 791         ret = rndis_command(dev, u.header, buflen);
 792         priv->current_command_oid = 0;
 793         if (ret < 0)
 794                 devdbg(dev, "rndis_set_oid(%s): rndis_command() failed, %d "
 795                         "(%08x)", oid_to_string(oid), ret,
 796                         le32_to_cpu(u.set_c->status));
 797
 798         if (ret == 0) {
 799                 ret = rndis_error_status(u.set_c->status);
 800
 801                 if (ret < 0)
 802                         devdbg(dev, "rndis_set_oid(%s): device returned error, "
 803                                 "0x%08x (%d)", oid_to_string(oid),
 804                                 le32_to_cpu(u.set_c->status), ret);
 805         }
 806
 807         mutex_unlock(&priv->command_lock);
 808
 809         if (u.buf != priv->command_buffer)
 810                 kfree(u.buf);
 811         return ret;
 812 }
 813
 814 static int rndis_reset(struct usbnet *usbdev)
 815 {
 816         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 817         struct rndis_reset *reset;
 818         int ret;
 819
 820         mutex_lock(&priv->command_lock);
 821
 822         reset = (void *)priv->command_buffer;
 823         memset(reset, 0, sizeof(*reset));
 824         reset->msg_type = RNDIS_MSG_RESET;
 825         reset->msg_len = cpu_to_le32(sizeof(*reset));
 826         priv->current_command_oid = 0;
 827         ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
 828
 829         mutex_unlock(&priv->command_lock);
 830
 831         if (ret < 0)
 832                 return ret;
 833         return 0;
 834 }
 835
 836 /*
 837  * Specs say that we can only set config parameters only soon after device
 838  * initialization.
 839  *   value_type: 0 = u32, 2 = unicode string
 840  */
 841 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
 842                                                 int value_type, void *value)
 843 {
 844         struct ndis_config_param *infobuf;
 845         int value_len, info_len, param_len, ret, i;
 846         __le16 *unibuf;
 847         __le32 *dst_value;
 848
 849         if (value_type == 0)
 850                 value_len = sizeof(__le32);
 851         else if (value_type == 2)
 852                 value_len = strlen(value) * sizeof(__le16);
 853         else
 854                 return -EINVAL;
 855
 856         param_len = strlen(param) * sizeof(__le16);
 857         info_len = sizeof(*infobuf) + param_len + value_len;
 858
 859 #ifdef DEBUG
 860         info_len += 12;
 861 #endif
 862         infobuf = kmalloc(info_len, GFP_KERNEL);
 863         if (!infobuf)
 864                 return -ENOMEM;
 865
 866 #ifdef DEBUG
 867         info_len -= 12;
 868         /* extra 12 bytes are for padding (debug output) */
 869         memset(infobuf, 0xCC, info_len + 12);
 870 #endif
 871
 872         if (value_type == 2)
 873                 devdbg(dev, "setting config parameter: %s, value: %s",
 874                                                 param, (u8 *)value);
 875         else
 876                 devdbg(dev, "setting config parameter: %s, value: %d",
 877                                                 param, *(u32 *)value);
 878
 879         infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
 880         infobuf->name_length = cpu_to_le32(param_len);
 881         infobuf->type = cpu_to_le32(value_type);
 882         infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
 883         infobuf->value_length = cpu_to_le32(value_len);
 884
 885         /* simple string to unicode string conversion */
 886         unibuf = (void *)infobuf + sizeof(*infobuf);
 887         for (i = 0; i < param_len / sizeof(__le16); i++)
 888                 unibuf[i] = cpu_to_le16(param[i]);
 889
 890         if (value_type == 2) {
 891                 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
 892                 for (i = 0; i < value_len / sizeof(__le16); i++)
 893                         unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
 894         } else {
 895                 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
 896                 *dst_value = cpu_to_le32(*(u32 *)value);
 897         }
 898
 899 #ifdef DEBUG
 900         devdbg(dev, "info buffer (len: %d):", info_len);
 901         for (i = 0; i < info_len; i += 12) {
 902                 u32 *tmp = (u32 *)((u8 *)infobuf + i);
 903                 devdbg(dev, "%08X:%08X:%08X",
 904                         cpu_to_be32(tmp[0]),
 905                         cpu_to_be32(tmp[1]),
 906                         cpu_to_be32(tmp[2]));
 907         }
 908 #endif
 909
 910         ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
 911                                                         infobuf, info_len);
 912         if (ret != 0)
 913                 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
 914
 915         kfree(infobuf);
 916         return ret;
 917 }
 918
 919 static int rndis_set_config_parameter_str(struct usbnet *dev,
 920                                                 char *param, char *value)
 921 {
 922         return rndis_set_config_parameter(dev, param, 2, value);
 923 }
 924
 925 /*
 926  * data conversion functions
 927  */
 928 static int level_to_qual(int level)
 929 {
 930         int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
 931         return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
 932 }
 933
 934 /*
 935  * common functions
 936  */
 937 static int set_infra_mode(struct usbnet *usbdev, int mode);
 938 static void restore_keys(struct usbnet *usbdev);
 939 static int rndis_check_bssid_list(struct usbnet *usbdev);
 940
 941 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
 942 {
 943         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 944         int ret;
 945
 946         ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
 947         if (ret < 0) {
 948                 devwarn(usbdev, "setting SSID failed (%08X)", ret);
 949                 return ret;
 950         }
 951         if (ret == 0) {
 952                 memcpy(&priv->essid, ssid, sizeof(priv->essid));
 953                 priv->radio_on = true;
 954                 devdbg(usbdev, "set_essid: radio_on = true");
 955         }
 956
 957         return ret;
 958 }
 959
 960 static int set_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
 961 {
 962         int ret;
 963
 964         ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
 965         if (ret < 0) {
 966                 devwarn(usbdev, "setting BSSID[%pM] failed (%08X)", bssid, ret);
 967                 return ret;
 968         }
 969
 970         return ret;
 971 }
 972
 973 static int clear_bssid(struct usbnet *usbdev)
 974 {
 975         u8 broadcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 976
 977         return set_bssid(usbdev, broadcast_mac);
 978 }
 979
 980 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
 981 {
 982         int ret, len;
 983
 984         len = ETH_ALEN;
 985         ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
 986
 987         if (ret != 0)
 988                 memset(bssid, 0, ETH_ALEN);
 989
 990         return ret;
 991 }
 992
 993 static int get_association_info(struct usbnet *usbdev,
 994                         struct ndis_80211_assoc_info *info, int len)
 995 {
 996         return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
 997                                 info, &len);
 998 }
 999
1000 static bool is_associated(struct usbnet *usbdev)
1001 {
1002         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1003         u8 bssid[ETH_ALEN];
1004         int ret;
1005
1006         if (!priv->radio_on)
1007                 return false;
1008
1009         ret = get_bssid(usbdev, bssid);
1010
1011         return (ret == 0 && !is_zero_ether_addr(bssid));
1012 }
1013
1014 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1015 {
1016         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1017         struct ndis_80211_ssid ssid;
1018         int i, ret = 0;
1019
1020         if (priv->radio_on) {
1021                 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1022                 if (ret == 0) {
1023                         priv->radio_on = false;
1024                         devdbg(usbdev, "disassociate: radio_on = false");
1025
1026                         if (reset_ssid)
1027                                 msleep(100);
1028                 }
1029         }
1030
1031         /* disassociate causes radio to be turned off; if reset_ssid
1032          * is given, set random ssid to enable radio */
1033         if (reset_ssid) {
1034                 /* Set device to infrastructure mode so we don't get ad-hoc
1035                  * 'media connect' indications with the random ssid.
1036                  */
1037                 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1038
1039                 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1040                 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1041                 ssid.essid[0] = 0x1;
1042                 ssid.essid[1] = 0xff;
1043                 for (i = 2; i < sizeof(ssid.essid); i++)
1044                         ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1045                 ret = set_essid(usbdev, &ssid);
1046         }
1047         return ret;
1048 }
1049
1050 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1051                                 enum nl80211_auth_type auth_type, int keymgmt)
1052 {
1053         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1054         __le32 tmp;
1055         int auth_mode, ret;
1056
1057         devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
1058                 "keymgmt=0x%x", wpa_version, auth_type, keymgmt);
1059
1060         if (wpa_version & NL80211_WPA_VERSION_2) {
1061                 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1062                         auth_mode = NDIS_80211_AUTH_WPA2;
1063                 else
1064                         auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1065         } else if (wpa_version & NL80211_WPA_VERSION_1) {
1066                 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1067                         auth_mode = NDIS_80211_AUTH_WPA;
1068                 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1069                         auth_mode = NDIS_80211_AUTH_WPA_PSK;
1070                 else
1071                         auth_mode = NDIS_80211_AUTH_WPA_NONE;
1072         } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1073                 auth_mode = NDIS_80211_AUTH_SHARED;
1074         else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1075                 auth_mode = NDIS_80211_AUTH_OPEN;
1076         else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1077                 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1078         else
1079                 return -ENOTSUPP;
1080
1081         tmp = cpu_to_le32(auth_mode);
1082         ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1083                                                                 sizeof(tmp));
1084         if (ret != 0) {
1085                 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
1086                 return ret;
1087         }
1088
1089         priv->wpa_version = wpa_version;
1090         priv->wpa_auth_type = auth_type;
1091         priv->wpa_keymgmt = keymgmt;
1092
1093         return 0;
1094 }
1095
1096 static int set_priv_filter(struct usbnet *usbdev)
1097 {
1098         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1099         __le32 tmp;
1100
1101         devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
1102
1103         if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1104             priv->wpa_version & NL80211_WPA_VERSION_1)
1105                 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1106         else
1107                 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1108
1109         return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1110                                                                 sizeof(tmp));
1111 }
1112
1113 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1114 {
1115         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1116         __le32 tmp;
1117         int encr_mode, ret;
1118
1119         devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
1120                 pairwise, groupwise);
1121
1122         if (pairwise & RNDIS_WLAN_ALG_CCMP)
1123                 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1124         else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1125                 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1126         else if (pairwise & RNDIS_WLAN_ALG_WEP)
1127                 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1128         else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1129                 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1130         else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1131                 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1132         else
1133                 encr_mode = NDIS_80211_ENCR_DISABLED;
1134
1135         tmp = cpu_to_le32(encr_mode);
1136         ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1137                                                                 sizeof(tmp));
1138         if (ret != 0) {
1139                 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
1140                 return ret;
1141         }
1142
1143         priv->wpa_cipher_pair = pairwise;
1144         priv->wpa_cipher_group = groupwise;
1145         return 0;
1146 }
1147
1148 static int set_infra_mode(struct usbnet *usbdev, int mode)
1149 {
1150         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1151         __le32 tmp;
1152         int ret;
1153
1154         devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
1155
1156         tmp = cpu_to_le32(mode);
1157         ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1158                                                                 sizeof(tmp));
1159         if (ret != 0) {
1160                 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
1161                 return ret;
1162         }
1163
1164         /* NDIS drivers clear keys when infrastructure mode is
1165          * changed. But Linux tools assume otherwise. So set the
1166          * keys */
1167         restore_keys(usbdev);
1168
1169         priv->infra_mode = mode;
1170         return 0;
1171 }
1172
1173 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1174 {
1175         __le32 tmp;
1176
1177         devdbg(usbdev, "set_rts_threshold %i", rts_threshold);
1178
1179         if (rts_threshold < 0 || rts_threshold > 2347)
1180                 rts_threshold = 2347;
1181
1182         tmp = cpu_to_le32(rts_threshold);
1183         return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1184                                                                 sizeof(tmp));
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 static void set_default_iw_params(struct usbnet *usbdev)
1202 {
1203         set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1204         set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1205                                                 RNDIS_WLAN_KEY_MGMT_NONE);
1206         set_priv_filter(usbdev);
1207         set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1208 }
1209
1210 static int deauthenticate(struct usbnet *usbdev)
1211 {
1212         int ret;
1213
1214         ret = disassociate(usbdev, true);
1215         set_default_iw_params(usbdev);
1216         return ret;
1217 }
1218
1219 static int set_channel(struct usbnet *usbdev, int channel)
1220 {
1221         struct ndis_80211_conf config;
1222         unsigned int dsconfig;
1223         int len, ret;
1224
1225         devdbg(usbdev, "set_channel(%d)", channel);
1226
1227         /* this OID is valid only when not associated */
1228         if (is_associated(usbdev))
1229                 return 0;
1230
1231         dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1232
1233         len = sizeof(config);
1234         ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1235         if (ret < 0) {
1236                 devdbg(usbdev, "set_channel: querying configuration failed");
1237                 return ret;
1238         }
1239
1240         config.ds_config = cpu_to_le32(dsconfig);
1241         ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1242                                                                 sizeof(config));
1243
1244         devdbg(usbdev, "set_channel: %d -> %d", channel, ret);
1245
1246         return ret;
1247 }
1248
1249 /* index must be 0 - N, as per NDIS  */
1250 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1251                                                                 int index)
1252 {
1253         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1254         struct ndis_80211_wep_key ndis_key;
1255         u32 cipher;
1256         int ret;
1257
1258         devdbg(usbdev, "add_wep_key(idx: %d, len: %d)", index, key_len);
1259
1260         if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1261                 return -EINVAL;
1262
1263         if (key_len == 5)
1264                 cipher = WLAN_CIPHER_SUITE_WEP40;
1265         else
1266                 cipher = WLAN_CIPHER_SUITE_WEP104;
1267
1268         memset(&ndis_key, 0, sizeof(ndis_key));
1269
1270         ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1271         ndis_key.length = cpu_to_le32(key_len);
1272         ndis_key.index = cpu_to_le32(index);
1273         memcpy(&ndis_key.material, key, key_len);
1274
1275         if (index == priv->encr_tx_key_index) {
1276                 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1277                 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1278                                                         RNDIS_WLAN_ALG_NONE);
1279                 if (ret)
1280                         devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1281                                                                         ret);
1282         }
1283
1284         ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1285                                                         sizeof(ndis_key));
1286         if (ret != 0) {
1287                 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1288                                                         index+1, ret);
1289                 return ret;
1290         }
1291
1292         priv->encr_keys[index].len = key_len;
1293         priv->encr_keys[index].cipher = cipher;
1294         memcpy(&priv->encr_keys[index].material, key, key_len);
1295         memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1296
1297         return 0;
1298 }
1299
1300 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1301                         int index, const u8 *addr, const u8 *rx_seq,
1302                         int seq_len, u32 cipher, __le32 flags)
1303 {
1304         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1305         struct ndis_80211_key ndis_key;
1306         bool is_addr_ok;
1307         int ret;
1308
1309         if (index < 0 || index >= 4) {
1310                 devdbg(usbdev, "add_wpa_key: index out of range (%i)", index);
1311                 return -EINVAL;
1312         }
1313         if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1314                 devdbg(usbdev, "add_wpa_key: key length out of range (%i)",
1315                         key_len);
1316                 return -EINVAL;
1317         }
1318         if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1319                 if (!rx_seq || seq_len <= 0) {
1320                         devdbg(usbdev, "add_wpa_key: recv seq flag without"
1321                                         "buffer");
1322                         return -EINVAL;
1323                 }
1324                 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1325                         devdbg(usbdev, "add_wpa_key: too big recv seq buffer");
1326                         return -EINVAL;
1327                 }
1328         }
1329
1330         is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1331                                         !is_broadcast_ether_addr(addr);
1332         if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1333                 devdbg(usbdev, "add_wpa_key: pairwise but bssid invalid (%pM)",
1334                         addr);
1335                 return -EINVAL;
1336         }
1337
1338         devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1339                         !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1340                         !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1341                         !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1342
1343         memset(&ndis_key, 0, sizeof(ndis_key));
1344
1345         ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1346                                 sizeof(ndis_key.material) + key_len);
1347         ndis_key.length = cpu_to_le32(key_len);
1348         ndis_key.index = cpu_to_le32(index) | flags;
1349
1350         if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1351                 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1352                  * different order than NDIS spec, so swap the order here. */
1353                 memcpy(ndis_key.material, key, 16);
1354                 memcpy(ndis_key.material + 16, key + 24, 8);
1355                 memcpy(ndis_key.material + 24, key + 16, 8);
1356         } else
1357                 memcpy(ndis_key.material, key, key_len);
1358
1359         if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1360                 memcpy(ndis_key.rsc, rx_seq, seq_len);
1361
1362         if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1363                 /* pairwise key */
1364                 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1365         } else {
1366                 /* group key */
1367                 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1368                         memset(ndis_key.bssid, 0xff, ETH_ALEN);
1369                 else
1370                         get_bssid(usbdev, ndis_key.bssid);
1371         }
1372
1373         ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1374                                         le32_to_cpu(ndis_key.size));
1375         devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1376         if (ret != 0)
1377                 return ret;
1378
1379         memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1380         priv->encr_keys[index].len = key_len;
1381         priv->encr_keys[index].cipher = cipher;
1382         memcpy(&priv->encr_keys[index].material, key, key_len);
1383         if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1384                 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1385         else
1386                 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1387
1388         if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1389                 priv->encr_tx_key_index = index;
1390
1391         return 0;
1392 }
1393
1394 static int restore_key(struct usbnet *usbdev, int key_idx)
1395 {
1396         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1397         struct rndis_wlan_encr_key key;
1398
1399         if (is_wpa_key(priv, key_idx))
1400                 return 0;
1401
1402         key = priv->encr_keys[key_idx];
1403
1404         devdbg(usbdev, "restore_key: %i:%i", key_idx, key.len);
1405
1406         if (key.len == 0)
1407                 return 0;
1408
1409         return add_wep_key(usbdev, key.material, key.len, key_idx);
1410 }
1411
1412 static void restore_keys(struct usbnet *usbdev)
1413 {
1414         int i;
1415
1416         for (i = 0; i < 4; i++)
1417                 restore_key(usbdev, i);
1418 }
1419
1420 static void clear_key(struct rndis_wlan_private *priv, int idx)
1421 {
1422         memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1423 }
1424
1425 /* remove_key is for both wep and wpa */
1426 static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
1427 {
1428         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1429         struct ndis_80211_remove_key remove_key;
1430         __le32 keyindex;
1431         bool is_wpa;
1432         int ret;
1433
1434         if (priv->encr_keys[index].len == 0)
1435                 return 0;
1436
1437         is_wpa = is_wpa_key(priv, index);
1438
1439         devdbg(usbdev, "remove_key: %i:%s:%i", index, is_wpa ? "wpa" : "wep",
1440                 priv->encr_keys[index].len);
1441
1442         clear_key(priv, index);
1443
1444         if (is_wpa) {
1445                 remove_key.size = cpu_to_le32(sizeof(remove_key));
1446                 remove_key.index = cpu_to_le32(index);
1447                 if (bssid) {
1448                         /* pairwise key */
1449                         if (!is_broadcast_ether_addr(bssid))
1450                                 remove_key.index |=
1451                                         NDIS_80211_ADDKEY_PAIRWISE_KEY;
1452                         memcpy(remove_key.bssid, bssid,
1453                                         sizeof(remove_key.bssid));
1454                 } else
1455                         memset(remove_key.bssid, 0xff,
1456                                                 sizeof(remove_key.bssid));
1457
1458                 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1459                                                         sizeof(remove_key));
1460                 if (ret != 0)
1461                         return ret;
1462         } else {
1463                 keyindex = cpu_to_le32(index);
1464                 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1465                                                         sizeof(keyindex));
1466                 if (ret != 0) {
1467                         devwarn(usbdev,
1468                                 "removing encryption key %d failed (%08X)",
1469                                 index, ret);
1470                         return ret;
1471                 }
1472         }
1473
1474         /* if it is transmit key, disable encryption */
1475         if (index == priv->encr_tx_key_index)
1476                 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1477
1478         return 0;
1479 }
1480
1481 static void set_multicast_list(struct usbnet *usbdev)
1482 {
1483         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1484         struct dev_mc_list *mclist;
1485         __le32 filter;
1486         int ret, i, size;
1487         char *buf;
1488
1489         filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1490
1491         if (usbdev->net->flags & IFF_PROMISC) {
1492                 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1493                         RNDIS_PACKET_TYPE_ALL_LOCAL;
1494         } else if (usbdev->net->flags & IFF_ALLMULTI ||
1495                    usbdev->net->mc_count > priv->multicast_size) {
1496                 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1497         } else if (usbdev->net->mc_count > 0) {
1498                 size = min(priv->multicast_size, usbdev->net->mc_count);
1499                 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1500                 if (!buf) {
1501                         devwarn(usbdev,
1502                                 "couldn't alloc %d bytes of memory",
1503                                 size * ETH_ALEN);
1504                         return;
1505                 }
1506
1507                 mclist = usbdev->net->mc_list;
1508                 for (i = 0; i < size && mclist; mclist = mclist->next) {
1509                         if (mclist->dmi_addrlen != ETH_ALEN)
1510                                 continue;
1511
1512                         memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1513                         i++;
1514                 }
1515
1516                 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1517                                                                 i * ETH_ALEN);
1518                 if (ret == 0 && i > 0)
1519                         filter |= RNDIS_PACKET_TYPE_MULTICAST;
1520                 else
1521                         filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1522
1523                 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1524                                                 i, priv->multicast_size, ret);
1525
1526                 kfree(buf);
1527         }
1528
1529         ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1530                                                         sizeof(filter));
1531         if (ret < 0) {
1532                 devwarn(usbdev, "couldn't set packet filter: %08x",
1533                                                         le32_to_cpu(filter));
1534         }
1535
1536         devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1537                                                 le32_to_cpu(filter), ret);
1538 }
1539
1540 /*
1541  * cfg80211 ops
1542  */
1543 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1544                                         struct net_device *dev,
1545                                         enum nl80211_iftype type, u32 *flags,
1546                                         struct vif_params *params)
1547 {
1548         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1549         struct usbnet *usbdev = priv->usbdev;
1550         int mode;
1551
1552         switch (type) {
1553         case NL80211_IFTYPE_ADHOC:
1554                 mode = NDIS_80211_INFRA_ADHOC;
1555                 break;
1556         case NL80211_IFTYPE_STATION:
1557                 mode = NDIS_80211_INFRA_INFRA;
1558                 break;
1559         default:
1560                 return -EINVAL;
1561         }
1562
1563         priv->wdev.iftype = type;
1564
1565         return set_infra_mode(usbdev, mode);
1566 }
1567
1568 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1569 {
1570         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1571         struct usbnet *usbdev = priv->usbdev;
1572         int err;
1573
1574         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1575                 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1576                 if (err < 0)
1577                         return err;
1578         }
1579
1580         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1581                 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1582                 if (err < 0)
1583                         return err;
1584         }
1585
1586         return 0;
1587 }
1588
1589 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
1590                                 int dbm)
1591 {
1592         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1593         struct usbnet *usbdev = priv->usbdev;
1594
1595         devdbg(usbdev, "rndis_set_tx_power type:0x%x dbm:%i", type, dbm);
1596
1597         /* Device doesn't support changing txpower after initialization, only
1598          * turn off/on radio. Support 'auto' mode and setting same dBm that is
1599          * currently used.
1600          */
1601         if (type == TX_POWER_AUTOMATIC || dbm == get_bcm4320_power_dbm(priv)) {
1602                 if (!priv->radio_on)
1603                         disassociate(usbdev, true); /* turn on radio */
1604
1605                 return 0;
1606         }
1607
1608         return -ENOTSUPP;
1609 }
1610
1611 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1612 {
1613         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1614         struct usbnet *usbdev = priv->usbdev;
1615
1616         *dbm = get_bcm4320_power_dbm(priv);
1617
1618         devdbg(usbdev, "rndis_get_tx_power dbm:%i", *dbm);
1619
1620         return 0;
1621 }
1622
1623 #define SCAN_DELAY_JIFFIES (6 * HZ)
1624 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1625                         struct cfg80211_scan_request *request)
1626 {
1627         struct usbnet *usbdev = netdev_priv(dev);
1628         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1629         int ret;
1630         __le32 tmp;
1631
1632         devdbg(usbdev, "cfg80211.scan");
1633
1634         /* Get current bssid list from device before new scan, as new scan
1635          * clears internal bssid list.
1636          */
1637         rndis_check_bssid_list(usbdev);
1638
1639         if (!request)
1640                 return -EINVAL;
1641
1642         if (priv->scan_request && priv->scan_request != request)
1643                 return -EBUSY;
1644
1645         priv->scan_request = request;
1646
1647         tmp = cpu_to_le32(1);
1648         ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1649                                                         sizeof(tmp));
1650         if (ret == 0) {
1651                 /* Wait before retrieving scan results from device */
1652                 queue_delayed_work(priv->workqueue, &priv->scan_work,
1653                         SCAN_DELAY_JIFFIES);
1654         }
1655
1656         return ret;
1657 }
1658
1659 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1660                                         struct ndis_80211_bssid_ex *bssid)
1661 {
1662         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1663         struct ieee80211_channel *channel;
1664         s32 signal;
1665         u64 timestamp;
1666         u16 capability;
1667         u16 beacon_interval;
1668         struct ndis_80211_fixed_ies *fixed;
1669         int ie_len, bssid_len;
1670         u8 *ie;
1671
1672         devdbg(usbdev, " found bssid: '%.32s' [%pM]", bssid->ssid.essid,
1673                                                         bssid->mac);
1674
1675         /* parse bssid structure */
1676         bssid_len = le32_to_cpu(bssid->length);
1677
1678         if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1679                         sizeof(struct ndis_80211_fixed_ies))
1680                 return NULL;
1681
1682         fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1683
1684         ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1685         ie_len = min(bssid_len - (int)sizeof(*bssid),
1686                                         (int)le32_to_cpu(bssid->ie_length));
1687         ie_len -= sizeof(struct ndis_80211_fixed_ies);
1688         if (ie_len < 0)
1689                 return NULL;
1690
1691         /* extract data for cfg80211_inform_bss */
1692         channel = ieee80211_get_channel(priv->wdev.wiphy,
1693                         KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1694         if (!channel)
1695                 return NULL;
1696
1697         signal = level_to_qual(le32_to_cpu(bssid->rssi));
1698         timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1699         capability = le16_to_cpu(fixed->capabilities);
1700         beacon_interval = le16_to_cpu(fixed->beacon_interval);
1701
1702         return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1703                 timestamp, capability, beacon_interval, ie, ie_len, signal,
1704                 GFP_KERNEL);
1705 }
1706
1707 static int rndis_check_bssid_list(struct usbnet *usbdev)
1708 {
1709         void *buf = NULL;
1710         struct ndis_80211_bssid_list_ex *bssid_list;
1711         struct ndis_80211_bssid_ex *bssid;
1712         int ret = -EINVAL, len, count, bssid_len;
1713         bool resized = false;
1714
1715         devdbg(usbdev, "check_bssid_list");
1716
1717         len = CONTROL_BUFFER_SIZE;
1718 resize_buf:
1719         buf = kmalloc(len, GFP_KERNEL);
1720         if (!buf) {
1721                 ret = -ENOMEM;
1722                 goto out;
1723         }
1724
1725         ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1726         if (ret != 0)
1727                 goto out;
1728
1729         if (!resized && len > CONTROL_BUFFER_SIZE) {
1730                 resized = true;
1731                 kfree(buf);
1732                 goto resize_buf;
1733         }
1734
1735         bssid_list = buf;
1736         bssid = bssid_list->bssid;
1737         bssid_len = le32_to_cpu(bssid->length);
1738         count = le32_to_cpu(bssid_list->num_items);
1739         devdbg(usbdev, "check_bssid_list: %d BSSIDs found (buflen: %d)", count,
1740                                                                         len);
1741
1742         while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1743                 rndis_bss_info_update(usbdev, bssid);
1744
1745                 bssid = (void *)bssid + bssid_len;
1746                 bssid_len = le32_to_cpu(bssid->length);
1747                 count--;
1748         }
1749
1750 out:
1751         kfree(buf);
1752         return ret;
1753 }
1754
1755 static void rndis_get_scan_results(struct work_struct *work)
1756 {
1757         struct rndis_wlan_private *priv =
1758                 container_of(work, struct rndis_wlan_private, scan_work.work);
1759         struct usbnet *usbdev = priv->usbdev;
1760         int ret;
1761
1762         devdbg(usbdev, "get_scan_results");
1763
1764         if (!priv->scan_request)
1765                 return;
1766
1767         ret = rndis_check_bssid_list(usbdev);
1768
1769         cfg80211_scan_done(priv->scan_request, ret < 0);
1770
1771         priv->scan_request = NULL;
1772 }
1773
1774 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
1775                                         struct cfg80211_connect_params *sme)
1776 {
1777         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1778         struct usbnet *usbdev = priv->usbdev;
1779         struct ieee80211_channel *channel = sme->channel;
1780         struct ndis_80211_ssid ssid;
1781         int pairwise = RNDIS_WLAN_ALG_NONE;
1782         int groupwise = RNDIS_WLAN_ALG_NONE;
1783         int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
1784         int length, i, ret, chan = -1;
1785
1786         if (channel)
1787                 chan = ieee80211_frequency_to_channel(channel->center_freq);
1788
1789         groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
1790         for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
1791                 pairwise |=
1792                         rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
1793
1794         if (sme->crypto.n_ciphers_pairwise > 0 &&
1795                         pairwise == RNDIS_WLAN_ALG_NONE) {
1796                 deverr(usbdev, "Unsupported pairwise cipher");
1797                 return -ENOTSUPP;
1798         }
1799
1800         for (i = 0; i < sme->crypto.n_akm_suites; i++)
1801                 keymgmt |=
1802                         rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
1803
1804         if (sme->crypto.n_akm_suites > 0 &&
1805                         keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
1806                 deverr(usbdev, "Invalid keymgmt");
1807                 return -ENOTSUPP;
1808         }
1809
1810         devdbg(usbdev, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:"
1811                         "0x%x]:0x%x)", sme->ssid, sme->bssid, chan,
1812                         sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
1813                         groupwise, pairwise, keymgmt);
1814
1815         if (is_associated(usbdev))
1816                 disassociate(usbdev, false);
1817
1818         ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1819         if (ret < 0) {
1820                 devdbg(usbdev, "connect: set_infra_mode failed, %d", ret);
1821                 goto err_turn_radio_on;
1822         }
1823
1824         ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
1825                                                                 keymgmt);
1826         if (ret < 0) {
1827                 devdbg(usbdev, "connect: set_auth_mode failed, %d", ret);
1828                 goto err_turn_radio_on;
1829         }
1830
1831         set_priv_filter(usbdev);
1832
1833         ret = set_encr_mode(usbdev, pairwise, groupwise);
1834         if (ret < 0) {
1835                 devdbg(usbdev, "connect: set_encr_mode failed, %d", ret);
1836                 goto err_turn_radio_on;
1837         }
1838
1839         if (channel) {
1840                 ret = set_channel(usbdev, chan);
1841                 if (ret < 0) {
1842                         devdbg(usbdev, "connect: set_channel failed, %d", ret);
1843                         goto err_turn_radio_on;
1844                 }
1845         }
1846
1847         if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
1848                 priv->encr_tx_key_index = sme->key_idx;
1849                 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
1850                 if (ret < 0) {
1851                         devdbg(usbdev, "connect: add_wep_key failed, %d "
1852                                 "(%d, %d)", ret, sme->key_len, sme->key_idx);
1853                         goto err_turn_radio_on;
1854                 }
1855         }
1856
1857         if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
1858                                 !is_broadcast_ether_addr(sme->bssid)) {
1859                 ret = set_bssid(usbdev, sme->bssid);
1860                 if (ret < 0) {
1861                         devdbg(usbdev, "connect: set_bssid failed, %d", ret);
1862                         goto err_turn_radio_on;
1863                 }
1864         } else
1865                 clear_bssid(usbdev);
1866
1867         length = sme->ssid_len;
1868         if (length > NDIS_802_11_LENGTH_SSID)
1869                 length = NDIS_802_11_LENGTH_SSID;
1870
1871         memset(&ssid, 0, sizeof(ssid));
1872         ssid.length = cpu_to_le32(length);
1873         memcpy(ssid.essid, sme->ssid, length);
1874
1875         /* Pause and purge rx queue, so we don't pass packets before
1876          * 'media connect'-indication.
1877          */
1878         usbnet_pause_rx(usbdev);
1879         usbnet_purge_paused_rxq(usbdev);
1880
1881         ret = set_essid(usbdev, &ssid);
1882         if (ret < 0)
1883                 devdbg(usbdev, "connect: set_essid failed, %d", ret);
1884         return ret;
1885
1886 err_turn_radio_on:
1887         disassociate(usbdev, true);
1888
1889         return ret;
1890 }
1891
1892 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
1893                                                                 u16 reason_code)
1894 {
1895         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1896         struct usbnet *usbdev = priv->usbdev;
1897
1898         devdbg(usbdev, "cfg80211.disconnect(%d)", reason_code);
1899
1900         priv->connected = false;
1901         memset(priv->bssid, 0, ETH_ALEN);
1902
1903         return deauthenticate(usbdev);
1904 }
1905
1906 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1907                                         struct cfg80211_ibss_params *params)
1908 {
1909         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1910         struct usbnet *usbdev = priv->usbdev;
1911         struct ieee80211_channel *channel = params->channel;
1912         struct ndis_80211_ssid ssid;
1913         enum nl80211_auth_type auth_type;
1914         int ret, alg, length, chan = -1;
1915
1916         if (channel)
1917                 chan = ieee80211_frequency_to_channel(channel->center_freq);
1918
1919         /* TODO: How to handle ad-hoc encryption?
1920          * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
1921          * pre-shared for encryption (open/shared/wpa), is key set before
1922          * join_ibss? Which auth_type to use (not in params)? What about WPA?
1923          */
1924         if (params->privacy) {
1925                 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
1926                 alg = RNDIS_WLAN_ALG_WEP;
1927         } else {
1928                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1929                 alg = RNDIS_WLAN_ALG_NONE;
1930         }
1931
1932         devdbg(usbdev, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)", params->ssid,
1933                                         params->bssid, chan, params->privacy);
1934
1935         if (is_associated(usbdev))
1936                 disassociate(usbdev, false);
1937
1938         ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
1939         if (ret < 0) {
1940                 devdbg(usbdev, "join_ibss: set_infra_mode failed, %d", ret);
1941                 goto err_turn_radio_on;
1942         }
1943
1944         ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
1945         if (ret < 0) {
1946                 devdbg(usbdev, "join_ibss: set_auth_mode failed, %d", ret);
1947                 goto err_turn_radio_on;
1948         }
1949
1950         set_priv_filter(usbdev);
1951
1952         ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
1953         if (ret < 0) {
1954                 devdbg(usbdev, "join_ibss: set_encr_mode failed, %d", ret);
1955                 goto err_turn_radio_on;
1956         }
1957
1958         if (channel) {
1959                 ret = set_channel(usbdev, chan);
1960                 if (ret < 0) {
1961                         devdbg(usbdev, "join_ibss: set_channel failed, %d",
1962                                 ret);
1963                         goto err_turn_radio_on;
1964                 }
1965         }
1966
1967         if (params->bssid && !is_zero_ether_addr(params->bssid) &&
1968                                 !is_broadcast_ether_addr(params->bssid)) {
1969                 ret = set_bssid(usbdev, params->bssid);
1970                 if (ret < 0) {
1971                         devdbg(usbdev, "join_ibss: set_bssid failed, %d", ret);
1972                         goto err_turn_radio_on;
1973                 }
1974         } else
1975                 clear_bssid(usbdev);
1976
1977         length = params->ssid_len;
1978         if (length > NDIS_802_11_LENGTH_SSID)
1979                 length = NDIS_802_11_LENGTH_SSID;
1980
1981         memset(&ssid, 0, sizeof(ssid));
1982         ssid.length = cpu_to_le32(length);
1983         memcpy(ssid.essid, params->ssid, length);
1984
1985         /* Don't need to pause rx queue for ad-hoc. */
1986         usbnet_purge_paused_rxq(usbdev);
1987         usbnet_resume_rx(usbdev);
1988
1989         ret = set_essid(usbdev, &ssid);
1990         if (ret < 0)
1991                 devdbg(usbdev, "join_ibss: set_essid failed, %d", ret);
1992         return ret;
1993
1994 err_turn_radio_on:
1995         disassociate(usbdev, true);
1996
1997         return ret;
1998 }
1999
2000 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2001 {
2002         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2003         struct usbnet *usbdev = priv->usbdev;
2004
2005         devdbg(usbdev, "cfg80211.leave_ibss()");
2006
2007         priv->connected = false;
2008         memset(priv->bssid, 0, ETH_ALEN);
2009
2010         return deauthenticate(usbdev);
2011 }
2012
2013 static int rndis_set_channel(struct wiphy *wiphy,
2014         struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2015 {
2016         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2017         struct usbnet *usbdev = priv->usbdev;
2018
2019         return set_channel(usbdev,
2020                         ieee80211_frequency_to_channel(chan->center_freq));
2021 }
2022
2023 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2024                                         u8 key_index, const u8 *mac_addr,
2025                                         struct key_params *params)
2026 {
2027         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2028         struct usbnet *usbdev = priv->usbdev;
2029         __le32 flags;
2030
2031         devdbg(usbdev, "rndis_add_key(%i, %pM, %08x)", key_index, mac_addr,
2032                                                         params->cipher);
2033
2034         switch (params->cipher) {
2035         case WLAN_CIPHER_SUITE_WEP40:
2036         case WLAN_CIPHER_SUITE_WEP104:
2037                 return add_wep_key(usbdev, params->key, params->key_len,
2038                                                                 key_index);
2039         case WLAN_CIPHER_SUITE_TKIP:
2040         case WLAN_CIPHER_SUITE_CCMP:
2041                 flags = 0;
2042
2043                 if (params->seq && params->seq_len > 0)
2044                         flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2045                 if (mac_addr)
2046                         flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2047                                         NDIS_80211_ADDKEY_TRANSMIT_KEY;
2048
2049                 return add_wpa_key(usbdev, params->key, params->key_len,
2050                                 key_index, mac_addr, params->seq,
2051                                 params->seq_len, params->cipher, flags);
2052         default:
2053                 devdbg(usbdev, "rndis_add_key: unsupported cipher %08x",
2054                                                         params->cipher);
2055                 return -ENOTSUPP;
2056         }
2057 }
2058
2059 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2060                                         u8 key_index, const u8 *mac_addr)
2061 {
2062         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2063         struct usbnet *usbdev = priv->usbdev;
2064
2065         devdbg(usbdev, "rndis_del_key(%i, %pM)", key_index, mac_addr);
2066
2067         return remove_key(usbdev, key_index, mac_addr);
2068 }
2069
2070 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2071                                                                 u8 key_index)
2072 {
2073         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2074         struct usbnet *usbdev = priv->usbdev;
2075         struct rndis_wlan_encr_key key;
2076
2077         devdbg(usbdev, "rndis_set_default_key(%i)", key_index);
2078
2079         priv->encr_tx_key_index = key_index;
2080
2081         key = priv->encr_keys[key_index];
2082
2083         return add_wep_key(usbdev, key.material, key.len, key_index);
2084 }
2085
2086 static void rndis_fill_station_info(struct usbnet *usbdev,
2087                                                 struct station_info *sinfo)
2088 {
2089         __le32 linkspeed, rssi;
2090         int ret, len;
2091
2092         memset(sinfo, 0, sizeof(*sinfo));
2093
2094         len = sizeof(linkspeed);
2095         ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2096         if (ret == 0) {
2097                 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2098                 sinfo->filled |= STATION_INFO_TX_BITRATE;
2099         }
2100
2101         len = sizeof(rssi);
2102         ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2103         if (ret == 0) {
2104                 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2105                 sinfo->filled |= STATION_INFO_SIGNAL;
2106         }
2107 }
2108
2109 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2110                                         u8 *mac, struct station_info *sinfo)
2111 {
2112         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2113         struct usbnet *usbdev = priv->usbdev;
2114
2115         if (compare_ether_addr(priv->bssid, mac))
2116                 return -ENOENT;
2117
2118         rndis_fill_station_info(usbdev, sinfo);
2119
2120         return 0;
2121 }
2122
2123 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2124                                int idx, u8 *mac, struct station_info *sinfo)
2125 {
2126         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2127         struct usbnet *usbdev = priv->usbdev;
2128
2129         if (idx != 0)
2130                 return -ENOENT;
2131
2132         memcpy(mac, priv->bssid, ETH_ALEN);
2133
2134         rndis_fill_station_info(usbdev, sinfo);
2135
2136         return 0;
2137 }
2138
2139 /*
2140  * workers, indication handlers, device poller
2141  */
2142 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2143 {
2144         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2145         struct ndis_80211_assoc_info *info;
2146         u8 assoc_buf[sizeof(*info) + IW_CUSTOM_MAX + 32];
2147         u8 bssid[ETH_ALEN];
2148         int resp_ie_len, req_ie_len;
2149         u8 *req_ie, *resp_ie;
2150         int ret, offset;
2151         bool roamed = false;
2152
2153         if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2154                 /* received media connect indication while connected, either
2155                  * device reassociated with same AP or roamed to new. */
2156                 roamed = true;
2157         }
2158
2159         req_ie_len = 0;
2160         resp_ie_len = 0;
2161         req_ie = NULL;
2162         resp_ie = NULL;
2163
2164         if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2165                 memset(assoc_buf, 0, sizeof(assoc_buf));
2166                 info = (void *)assoc_buf;
2167
2168                 /* Get association info IEs from device and send them back to
2169                  * userspace. */
2170                 ret = get_association_info(usbdev, info, sizeof(assoc_buf));
2171                 if (!ret) {
2172                         req_ie_len = le32_to_cpu(info->req_ie_length);
2173                         if (req_ie_len > 0) {
2174                                 offset = le32_to_cpu(info->offset_req_ies);
2175                                 req_ie = (u8 *)info + offset;
2176                         }
2177
2178                         resp_ie_len = le32_to_cpu(info->resp_ie_length);
2179                         if (resp_ie_len > 0) {
2180                                 offset = le32_to_cpu(info->offset_resp_ies);
2181                                 resp_ie = (u8 *)info + offset;
2182                         }
2183                 }
2184         } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2185                 return;
2186
2187         ret = get_bssid(usbdev, bssid);
2188         if (ret < 0)
2189                 memset(bssid, 0, sizeof(bssid));
2190
2191         devdbg(usbdev, "link up work: [%pM] %s", bssid, roamed ? "roamed" : "");
2192
2193         /* Internal bss list in device always contains at least the currently
2194          * connected bss and we can get it to cfg80211 with
2195          * rndis_check_bssid_list().
2196          * NOTE: This is true for Broadcom chip, but not mentioned in RNDIS
2197          * spec.
2198          */
2199         rndis_check_bssid_list(usbdev);
2200
2201         if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2202                 if (!roamed)
2203                         cfg80211_connect_result(usbdev->net, bssid, req_ie,
2204                                                 req_ie_len, resp_ie,
2205                                                 resp_ie_len, 0, GFP_KERNEL);
2206                 else
2207                         cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len,
2208                                         resp_ie, resp_ie_len, GFP_KERNEL);
2209         } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2210                 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2211
2212         priv->connected = true;
2213         memcpy(priv->bssid, bssid, ETH_ALEN);
2214
2215         usbnet_resume_rx(usbdev);
2216         netif_carrier_on(usbdev->net);
2217 }
2218
2219 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2220 {
2221         union iwreq_data evt;
2222
2223         netif_carrier_off(usbdev->net);
2224
2225         evt.data.flags = 0;
2226         evt.data.length = 0;
2227         memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2228         wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2229 }
2230
2231 static void rndis_wlan_worker(struct work_struct *work)
2232 {
2233         struct rndis_wlan_private *priv =
2234                 container_of(work, struct rndis_wlan_private, work);
2235         struct usbnet *usbdev = priv->usbdev;
2236
2237         if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2238                 rndis_wlan_do_link_up_work(usbdev);
2239
2240         if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2241                 rndis_wlan_do_link_down_work(usbdev);
2242
2243         if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2244                 set_multicast_list(usbdev);
2245 }
2246
2247 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2248 {
2249         struct usbnet *usbdev = netdev_priv(dev);
2250         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2251
2252         if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2253                 return;
2254
2255         set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2256         queue_work(priv->workqueue, &priv->work);
2257 }
2258
2259 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2260                                 struct ndis_80211_status_indication *indication,
2261                                 int len)
2262 {
2263         u8 *buf;
2264         const char *type;
2265         int flags, buflen, key_id;
2266         bool pairwise_error, group_error;
2267         struct ndis_80211_auth_request *auth_req;
2268         enum nl80211_key_type key_type;
2269
2270         /* must have at least one array entry */
2271         if (len < offsetof(struct ndis_80211_status_indication, u) +
2272                                 sizeof(struct ndis_80211_auth_request)) {
2273                 devinfo(usbdev, "authentication indication: "
2274                                 "too short message (%i)", len);
2275                 return;
2276         }
2277
2278         buf = (void *)&indication->u.auth_request[0];
2279         buflen = len - offsetof(struct ndis_80211_status_indication, u);
2280
2281         while (buflen >= sizeof(*auth_req)) {
2282                 auth_req = (void *)buf;
2283                 type = "unknown";
2284                 flags = le32_to_cpu(auth_req->flags);
2285                 pairwise_error = false;
2286                 group_error = false;
2287
2288                 if (flags & 0x1)
2289                         type = "reauth request";
2290                 if (flags & 0x2)
2291                         type = "key update request";
2292                 if (flags & 0x6) {
2293                         pairwise_error = true;
2294                         type = "pairwise_error";
2295                 }
2296                 if (flags & 0xe) {
2297                         group_error = true;
2298                         type = "group_error";
2299                 }
2300
2301                 devinfo(usbdev, "authentication indication: %s (0x%08x)", type,
2302                                 le32_to_cpu(auth_req->flags));
2303
2304                 if (pairwise_error) {
2305                         key_type = NL80211_KEYTYPE_PAIRWISE;
2306                         key_id = -1;
2307
2308                         cfg80211_michael_mic_failure(usbdev->net,
2309                                                         auth_req->bssid,
2310                                                         key_type, key_id, NULL,
2311                                                         GFP_KERNEL);
2312                 }
2313
2314                 if (group_error) {
2315                         key_type = NL80211_KEYTYPE_GROUP;
2316                         key_id = -1;
2317
2318                         cfg80211_michael_mic_failure(usbdev->net,
2319                                                         auth_req->bssid,
2320                                                         key_type, key_id, NULL,
2321                                                         GFP_KERNEL);
2322                 }
2323
2324                 buflen -= le32_to_cpu(auth_req->length);
2325                 buf += le32_to_cpu(auth_req->length);
2326         }
2327 }
2328
2329 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2330                                 struct ndis_80211_status_indication *indication,
2331                                 int len)
2332 {
2333         struct ndis_80211_pmkid_cand_list *cand_list;
2334         int list_len, expected_len, i;
2335
2336         if (len < offsetof(struct ndis_80211_status_indication, u) +
2337                                 sizeof(struct ndis_80211_pmkid_cand_list)) {
2338                 devinfo(usbdev, "pmkid candidate list indication: "
2339                                 "too short message (%i)", len);
2340                 return;
2341         }
2342
2343         list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2344                         sizeof(struct ndis_80211_pmkid_candidate);
2345         expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2346                         offsetof(struct ndis_80211_status_indication, u);
2347
2348         if (len < expected_len) {
2349                 devinfo(usbdev, "pmkid candidate list indication: "
2350                                 "list larger than buffer (%i < %i)",
2351                                 len, expected_len);
2352                 return;
2353         }
2354
2355         cand_list = &indication->u.cand_list;
2356
2357         devinfo(usbdev, "pmkid candidate list indication: "
2358                         "version %i, candidates %i",
2359                         le32_to_cpu(cand_list->version),
2360                         le32_to_cpu(cand_list->num_candidates));
2361
2362         if (le32_to_cpu(cand_list->version) != 1)
2363                 return;
2364
2365         for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2366                 struct ndis_80211_pmkid_candidate *cand =
2367                                                 &cand_list->candidate_list[i];
2368
2369                 devdbg(usbdev, "cand[%i]: flags: 0x%08x, bssid: %pM",
2370                                 i, le32_to_cpu(cand->flags), cand->bssid);
2371
2372 #if 0
2373                 struct iw_pmkid_cand pcand;
2374                 union iwreq_data wrqu;
2375
2376                 memset(&pcand, 0, sizeof(pcand));
2377                 if (le32_to_cpu(cand->flags) & 0x01)
2378                         pcand.flags |= IW_PMKID_CAND_PREAUTH;
2379                 pcand.index = i;
2380                 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2381
2382                 memset(&wrqu, 0, sizeof(wrqu));
2383                 wrqu.data.length = sizeof(pcand);
2384                 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2385                                                                 (u8 *)&pcand);
2386 #endif
2387         }
2388 }
2389
2390 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2391                         struct rndis_indicate *msg, int buflen)
2392 {
2393         struct ndis_80211_status_indication *indication;
2394         int len, offset;
2395
2396         offset = offsetof(struct rndis_indicate, status) +
2397                         le32_to_cpu(msg->offset);
2398         len = le32_to_cpu(msg->length);
2399
2400         if (len < 8) {
2401                 devinfo(usbdev, "media specific indication, "
2402                                 "ignore too short message (%i < 8)", len);
2403                 return;
2404         }
2405
2406         if (offset + len > buflen) {
2407                 devinfo(usbdev, "media specific indication, "
2408                                 "too large to fit to buffer (%i > %i)",
2409                                 offset + len, buflen);
2410                 return;
2411         }
2412
2413         indication = (void *)((u8 *)msg + offset);
2414
2415         switch (le32_to_cpu(indication->status_type)) {
2416         case NDIS_80211_STATUSTYPE_RADIOSTATE:
2417                 devinfo(usbdev, "radio state indication: %i",
2418                         le32_to_cpu(indication->u.radio_status));
2419                 return;
2420
2421         case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
2422                 devinfo(usbdev, "media stream mode indication: %i",
2423                         le32_to_cpu(indication->u.media_stream_mode));
2424                 return;
2425
2426         case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2427                 rndis_wlan_auth_indication(usbdev, indication, len);
2428                 return;
2429
2430         case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2431                 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2432                 return;
2433
2434         default:
2435                 devinfo(usbdev, "media specific indication: "
2436                                 "unknown status type 0x%08x",
2437                                 le32_to_cpu(indication->status_type));
2438         }
2439 }
2440
2441 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
2442 {
2443         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2444         struct rndis_indicate *msg = ind;
2445
2446         switch (msg->status) {
2447         case RNDIS_STATUS_MEDIA_CONNECT:
2448                 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2449                         /* OID_802_11_ADD_KEY causes sometimes extra
2450                          * "media connect" indications which confuses driver
2451                          * and userspace to think that device is
2452                          * roaming/reassociating when it isn't.
2453                          */
2454                         devdbg(usbdev, "ignored OID_802_11_ADD_KEY triggered "
2455                                         "'media connect'");
2456                         return;
2457                 }
2458
2459                 usbnet_pause_rx(usbdev);
2460
2461                 devinfo(usbdev, "media connect");
2462
2463                 /* queue work to avoid recursive calls into rndis_command */
2464                 set_bit(WORK_LINK_UP, &priv->work_pending);
2465                 queue_work(priv->workqueue, &priv->work);
2466                 break;
2467
2468         case RNDIS_STATUS_MEDIA_DISCONNECT:
2469                 devinfo(usbdev, "media disconnect");
2470
2471                 /* queue work to avoid recursive calls into rndis_command */
2472                 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2473                 queue_work(priv->workqueue, &priv->work);
2474                 break;
2475
2476         case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2477                 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2478                 break;
2479
2480         default:
2481                 devinfo(usbdev, "indication: 0x%08x",
2482                                 le32_to_cpu(msg->status));
2483                 break;
2484         }
2485 }
2486
2487 static int rndis_wlan_get_caps(struct usbnet *usbdev)
2488 {
2489         struct {
2490                 __le32  num_items;
2491                 __le32  items[8];
2492         } networks_supported;
2493         int len, retval, i, n;
2494         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2495
2496         /* determine supported modes */
2497         len = sizeof(networks_supported);
2498         retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2499                                                 &networks_supported, &len);
2500         if (retval >= 0) {
2501                 n = le32_to_cpu(networks_supported.num_items);
2502                 if (n > 8)
2503                         n = 8;
2504                 for (i = 0; i < n; i++) {
2505                         switch (le32_to_cpu(networks_supported.items[i])) {
2506                         case NDIS_80211_TYPE_FREQ_HOP:
2507                         case NDIS_80211_TYPE_DIRECT_SEQ:
2508                                 priv->caps |= CAP_MODE_80211B;
2509                                 break;
2510                         case NDIS_80211_TYPE_OFDM_A:
2511                                 priv->caps |= CAP_MODE_80211A;
2512                                 break;
2513                         case NDIS_80211_TYPE_OFDM_G:
2514                                 priv->caps |= CAP_MODE_80211G;
2515                                 break;
2516                         }
2517                 }
2518         }
2519
2520         return retval;
2521 }
2522
2523 #define DEVICE_POLLER_JIFFIES (HZ)
2524 static void rndis_device_poller(struct work_struct *work)
2525 {
2526         struct rndis_wlan_private *priv =
2527                 container_of(work, struct rndis_wlan_private,
2528                                                         dev_poller_work.work);
2529         struct usbnet *usbdev = priv->usbdev;
2530         __le32 rssi, tmp;
2531         int len, ret, j;
2532         int update_jiffies = DEVICE_POLLER_JIFFIES;
2533         void *buf;
2534
2535         /* Only check/do workaround when connected. Calling is_associated()
2536          * also polls device with rndis_command() and catches for media link
2537          * indications.
2538          */
2539         if (!is_associated(usbdev))
2540                 goto end;
2541
2542         len = sizeof(rssi);
2543         ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2544         if (ret == 0)
2545                 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
2546
2547         devdbg(usbdev, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d",
2548                 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
2549
2550         /* Workaround transfer stalls on poor quality links.
2551          * TODO: find right way to fix these stalls (as stalls do not happen
2552          * with ndiswrapper/windows driver). */
2553         if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
2554                 /* Decrease stats worker interval to catch stalls.
2555                  * faster. Faster than 400-500ms causes packet loss,
2556                  * Slower doesn't catch stalls fast enough.
2557                  */
2558                 j = msecs_to_jiffies(priv->param_workaround_interval);
2559                 if (j > DEVICE_POLLER_JIFFIES)
2560                         j = DEVICE_POLLER_JIFFIES;
2561                 else if (j <= 0)
2562                         j = 1;
2563                 update_jiffies = j;
2564
2565                 /* Send scan OID. Use of both OIDs is required to get device
2566                  * working.
2567                  */
2568                 tmp = cpu_to_le32(1);
2569                 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2570                                                                 sizeof(tmp));
2571
2572                 len = CONTROL_BUFFER_SIZE;
2573                 buf = kmalloc(len, GFP_KERNEL);
2574                 if (!buf)
2575                         goto end;
2576
2577                 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2578                 kfree(buf);
2579         }
2580
2581 end:
2582         if (update_jiffies >= HZ)
2583                 update_jiffies = round_jiffies_relative(update_jiffies);
2584         else {
2585                 j = round_jiffies_relative(update_jiffies);
2586                 if (abs(j - update_jiffies) <= 10)
2587                         update_jiffies = j;
2588         }
2589
2590         queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
2591                                                                 update_jiffies);
2592 }
2593
2594 /*
2595  * driver/device initialization
2596  */
2597 static int bcm4320a_early_init(struct usbnet *usbdev)
2598 {
2599         /* bcm4320a doesn't handle configuration parameters well. Try
2600          * set any and you get partially zeroed mac and broken device.
2601          */
2602
2603         return 0;
2604 }
2605
2606 static int bcm4320b_early_init(struct usbnet *usbdev)
2607 {
2608         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2609         char buf[8];
2610
2611         /* Early initialization settings, setting these won't have effect
2612          * if called after generic_rndis_bind().
2613          */
2614
2615         priv->param_country[0] = modparam_country[0];
2616         priv->param_country[1] = modparam_country[1];
2617         priv->param_country[2] = 0;
2618         priv->param_frameburst   = modparam_frameburst;
2619         priv->param_afterburner  = modparam_afterburner;
2620         priv->param_power_save   = modparam_power_save;
2621         priv->param_power_output = modparam_power_output;
2622         priv->param_roamtrigger  = modparam_roamtrigger;
2623         priv->param_roamdelta    = modparam_roamdelta;
2624
2625         priv->param_country[0] = toupper(priv->param_country[0]);
2626         priv->param_country[1] = toupper(priv->param_country[1]);
2627         /* doesn't support EU as country code, use FI instead */
2628         if (!strcmp(priv->param_country, "EU"))
2629                 strcpy(priv->param_country, "FI");
2630
2631         if (priv->param_power_save < 0)
2632                 priv->param_power_save = 0;
2633         else if (priv->param_power_save > 2)
2634                 priv->param_power_save = 2;
2635
2636         if (priv->param_power_output < 0)
2637                 priv->param_power_output = 0;
2638         else if (priv->param_power_output > 3)
2639                 priv->param_power_output = 3;
2640
2641         if (priv->param_roamtrigger < -80)
2642                 priv->param_roamtrigger = -80;
2643         else if (priv->param_roamtrigger > -60)
2644                 priv->param_roamtrigger = -60;
2645
2646         if (priv->param_roamdelta < 0)
2647                 priv->param_roamdelta = 0;
2648         else if (priv->param_roamdelta > 2)
2649                 priv->param_roamdelta = 2;
2650
2651         if (modparam_workaround_interval < 0)
2652                 priv->param_workaround_interval = 500;
2653         else
2654                 priv->param_workaround_interval = modparam_workaround_interval;
2655
2656         rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2657         rndis_set_config_parameter_str(usbdev, "FrameBursting",
2658                                         priv->param_frameburst ? "1" : "0");
2659         rndis_set_config_parameter_str(usbdev, "Afterburner",
2660                                         priv->param_afterburner ? "1" : "0");
2661         sprintf(buf, "%d", priv->param_power_save);
2662         rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2663         sprintf(buf, "%d", priv->param_power_output);
2664         rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2665         sprintf(buf, "%d", priv->param_roamtrigger);
2666         rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2667         sprintf(buf, "%d", priv->param_roamdelta);
2668         rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2669
2670         return 0;
2671 }
2672
2673 /* same as rndis_netdev_ops but with local multicast handler */
2674 static const struct net_device_ops rndis_wlan_netdev_ops = {
2675         .ndo_open               = usbnet_open,
2676         .ndo_stop               = usbnet_stop,
2677         .ndo_start_xmit         = usbnet_start_xmit,
2678         .ndo_tx_timeout         = usbnet_tx_timeout,
2679         .ndo_set_mac_address    = eth_mac_addr,
2680         .ndo_validate_addr      = eth_validate_addr,
2681         .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
2682 };
2683
2684 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
2685 {
2686         struct wiphy *wiphy;
2687         struct rndis_wlan_private *priv;
2688         int retval, len;
2689         __le32 tmp;
2690
2691         /* allocate wiphy and rndis private data
2692          * NOTE: We only support a single virtual interface, so wiphy
2693          * and wireless_dev are somewhat synonymous for this device.
2694          */
2695         wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
2696         if (!wiphy)
2697                 return -ENOMEM;
2698
2699         priv = wiphy_priv(wiphy);
2700         usbdev->net->ieee80211_ptr = &priv->wdev;
2701         priv->wdev.wiphy = wiphy;
2702         priv->wdev.iftype = NL80211_IFTYPE_STATION;
2703
2704         /* These have to be initialized before calling generic_rndis_bind().
2705          * Otherwise we'll be in big trouble in rndis_wlan_early_init().
2706          */
2707         usbdev->driver_priv = priv;
2708         priv->usbdev = usbdev;
2709
2710         mutex_init(&priv->command_lock);
2711
2712         /* because rndis_command() sleeps we need to use workqueue */
2713         priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2714         INIT_WORK(&priv->work, rndis_wlan_worker);
2715         INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
2716         INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2717
2718         /* try bind rndis_host */
2719         retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2720         if (retval < 0)
2721                 goto fail;
2722
2723         /* generic_rndis_bind set packet filter to multicast_all+
2724          * promisc mode which doesn't work well for our devices (device
2725          * picks up rssi to closest station instead of to access point).
2726          *
2727          * rndis_host wants to avoid all OID as much as possible
2728          * so do promisc/multicast handling in rndis_wlan.
2729          */
2730         usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
2731
2732         tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2733         retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2734                                                                 sizeof(tmp));
2735
2736         len = sizeof(tmp);
2737         retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2738                                                                 &len);
2739         priv->multicast_size = le32_to_cpu(tmp);
2740         if (retval < 0 || priv->multicast_size < 0)
2741                 priv->multicast_size = 0;
2742         if (priv->multicast_size > 0)
2743                 usbdev->net->flags |= IFF_MULTICAST;
2744         else
2745                 usbdev->net->flags &= ~IFF_MULTICAST;
2746
2747         /* fill-out wiphy structure and register w/ cfg80211 */
2748         memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2749         wiphy->privid = rndis_wiphy_privid;
2750         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2751                                         | BIT(NL80211_IFTYPE_ADHOC);
2752         wiphy->max_scan_ssids = 1;
2753
2754         /* TODO: fill-out band/encr information based on priv->caps */
2755         rndis_wlan_get_caps(usbdev);
2756
2757         memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2758         memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2759         priv->band.channels = priv->channels;
2760         priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2761         priv->band.bitrates = priv->rates;
2762         priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2763         wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2764         wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2765
2766         memcpy(priv->cipher_suites, rndis_cipher_suites,
2767                                                 sizeof(rndis_cipher_suites));
2768         wiphy->cipher_suites = priv->cipher_suites;
2769         wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
2770
2771         set_wiphy_dev(wiphy, &usbdev->udev->dev);
2772
2773         if (wiphy_register(wiphy)) {
2774                 retval = -ENODEV;
2775                 goto fail;
2776         }
2777
2778         set_default_iw_params(usbdev);
2779
2780         /* set default rts/frag */
2781         rndis_set_wiphy_params(wiphy,
2782                         WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
2783
2784         /* turn radio on */
2785         priv->radio_on = true;
2786         disassociate(usbdev, true);
2787         netif_carrier_off(usbdev->net);
2788
2789         return 0;
2790
2791 fail:
2792         cancel_delayed_work_sync(&priv->dev_poller_work);
2793         cancel_delayed_work_sync(&priv->scan_work);
2794         cancel_work_sync(&priv->work);
2795         flush_workqueue(priv->workqueue);
2796         destroy_workqueue(priv->workqueue);
2797
2798         wiphy_free(wiphy);
2799         return retval;
2800 }
2801
2802 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2803 {
2804         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2805
2806         /* turn radio off */
2807         disassociate(usbdev, false);
2808
2809         cancel_delayed_work_sync(&priv->dev_poller_work);
2810         cancel_delayed_work_sync(&priv->scan_work);
2811         cancel_work_sync(&priv->work);
2812         flush_workqueue(priv->workqueue);
2813         destroy_workqueue(priv->workqueue);
2814
2815         if (priv && priv->wpa_ie_len)
2816                 kfree(priv->wpa_ie);
2817
2818         rndis_unbind(usbdev, intf);
2819
2820         wiphy_unregister(priv->wdev.wiphy);
2821         wiphy_free(priv->wdev.wiphy);
2822 }
2823
2824 static int rndis_wlan_reset(struct usbnet *usbdev)
2825 {
2826         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2827         int retval;
2828
2829         devdbg(usbdev, "rndis_wlan_reset");
2830
2831         retval = rndis_reset(usbdev);
2832         if (retval)
2833                 devwarn(usbdev, "rndis_reset() failed: %d", retval);
2834
2835         /* rndis_reset cleared multicast list, so restore here.
2836            (set_multicast_list() also turns on current packet filter) */
2837         set_multicast_list(usbdev);
2838
2839         queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
2840                 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
2841
2842         return deauthenticate(usbdev);
2843 }
2844
2845 static int rndis_wlan_stop(struct usbnet *usbdev)
2846 {
2847         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2848         int retval;
2849         __le32 filter;
2850
2851         devdbg(usbdev, "rndis_wlan_stop");
2852
2853         retval = disassociate(usbdev, false);
2854
2855         priv->work_pending = 0;
2856         cancel_delayed_work_sync(&priv->dev_poller_work);
2857         cancel_delayed_work_sync(&priv->scan_work);
2858         cancel_work_sync(&priv->work);
2859         flush_workqueue(priv->workqueue);
2860
2861         if (priv->scan_request) {
2862                 cfg80211_scan_done(priv->scan_request, true);
2863                 priv->scan_request = NULL;
2864         }
2865
2866         /* Set current packet filter zero to block receiving data packets from
2867            device. */
2868         filter = 0;
2869         rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
2870                                                                 sizeof(filter));
2871
2872         return retval;
2873 }
2874
2875 static const struct driver_info bcm4320b_info = {
2876         .description =  "Wireless RNDIS device, BCM4320b based",
2877         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2878                                 FLAG_AVOID_UNLINK_URBS,
2879         .bind =         rndis_wlan_bind,
2880         .unbind =       rndis_wlan_unbind,
2881         .status =       rndis_status,
2882         .rx_fixup =     rndis_rx_fixup,
2883         .tx_fixup =     rndis_tx_fixup,
2884         .reset =        rndis_wlan_reset,
2885         .stop =         rndis_wlan_stop,
2886         .early_init =   bcm4320b_early_init,
2887         .indication =   rndis_wlan_indication,
2888 };
2889
2890 static const struct driver_info bcm4320a_info = {
2891         .description =  "Wireless RNDIS device, BCM4320a based",
2892         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2893                                 FLAG_AVOID_UNLINK_URBS,
2894         .bind =         rndis_wlan_bind,
2895         .unbind =       rndis_wlan_unbind,
2896         .status =       rndis_status,
2897         .rx_fixup =     rndis_rx_fixup,
2898         .tx_fixup =     rndis_tx_fixup,
2899         .reset =        rndis_wlan_reset,
2900         .stop =         rndis_wlan_stop,
2901         .early_init =   bcm4320a_early_init,
2902         .indication =   rndis_wlan_indication,
2903 };
2904
2905 static const struct driver_info rndis_wlan_info = {
2906         .description =  "Wireless RNDIS device",
2907         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2908                                 FLAG_AVOID_UNLINK_URBS,
2909         .bind =         rndis_wlan_bind,
2910         .unbind =       rndis_wlan_unbind,
2911         .status =       rndis_status,
2912         .rx_fixup =     rndis_rx_fixup,
2913         .tx_fixup =     rndis_tx_fixup,
2914         .reset =        rndis_wlan_reset,
2915         .stop =         rndis_wlan_stop,
2916         .early_init =   bcm4320a_early_init,
2917         .indication =   rndis_wlan_indication,
2918 };
2919
2920 /*-------------------------------------------------------------------------*/
2921
2922 static const struct usb_device_id products [] = {
2923 #define RNDIS_MASTER_INTERFACE \
2924         .bInterfaceClass        = USB_CLASS_COMM, \
2925         .bInterfaceSubClass     = 2 /* ACM */, \
2926         .bInterfaceProtocol     = 0x0ff
2927
2928 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2929  * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2930  */
2931 {
2932         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2933                           | USB_DEVICE_ID_MATCH_DEVICE,
2934         .idVendor               = 0x0411,
2935         .idProduct              = 0x00bc,       /* Buffalo WLI-U2-KG125S */
2936         RNDIS_MASTER_INTERFACE,
2937         .driver_info            = (unsigned long) &bcm4320b_info,
2938 }, {
2939         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2940                           | USB_DEVICE_ID_MATCH_DEVICE,
2941         .idVendor               = 0x0baf,
2942         .idProduct              = 0x011b,       /* U.S. Robotics USR5421 */
2943         RNDIS_MASTER_INTERFACE,
2944         .driver_info            = (unsigned long) &bcm4320b_info,
2945 }, {
2946         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2947                           | USB_DEVICE_ID_MATCH_DEVICE,
2948         .idVendor               = 0x050d,
2949         .idProduct              = 0x011b,       /* Belkin F5D7051 */
2950         RNDIS_MASTER_INTERFACE,
2951         .driver_info            = (unsigned long) &bcm4320b_info,
2952 }, {
2953         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2954                           | USB_DEVICE_ID_MATCH_DEVICE,
2955         .idVendor               = 0x1799,       /* Belkin has two vendor ids */
2956         .idProduct              = 0x011b,       /* Belkin F5D7051 */
2957         RNDIS_MASTER_INTERFACE,
2958         .driver_info            = (unsigned long) &bcm4320b_info,
2959 }, {
2960         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2961                           | USB_DEVICE_ID_MATCH_DEVICE,
2962         .idVendor               = 0x13b1,
2963         .idProduct              = 0x0014,       /* Linksys WUSB54GSv2 */
2964         RNDIS_MASTER_INTERFACE,
2965         .driver_info            = (unsigned long) &bcm4320b_info,
2966 }, {
2967         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2968                           | USB_DEVICE_ID_MATCH_DEVICE,
2969         .idVendor               = 0x13b1,
2970         .idProduct              = 0x0026,       /* Linksys WUSB54GSC */
2971         RNDIS_MASTER_INTERFACE,
2972         .driver_info            = (unsigned long) &bcm4320b_info,
2973 }, {
2974         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2975                           | USB_DEVICE_ID_MATCH_DEVICE,
2976         .idVendor               = 0x0b05,
2977         .idProduct              = 0x1717,       /* Asus WL169gE */
2978         RNDIS_MASTER_INTERFACE,
2979         .driver_info            = (unsigned long) &bcm4320b_info,
2980 }, {
2981         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2982                           | USB_DEVICE_ID_MATCH_DEVICE,
2983         .idVendor               = 0x0a5c,
2984         .idProduct              = 0xd11b,       /* Eminent EM4045 */
2985         RNDIS_MASTER_INTERFACE,
2986         .driver_info            = (unsigned long) &bcm4320b_info,
2987 }, {
2988         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2989                           | USB_DEVICE_ID_MATCH_DEVICE,
2990         .idVendor               = 0x1690,
2991         .idProduct              = 0x0715,       /* BT Voyager 1055 */
2992         RNDIS_MASTER_INTERFACE,
2993         .driver_info            = (unsigned long) &bcm4320b_info,
2994 },
2995 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2996  * parameters available, hardware probably contain older firmware version with
2997  * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2998  */
2999 {
3000         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3001                           | USB_DEVICE_ID_MATCH_DEVICE,
3002         .idVendor               = 0x13b1,
3003         .idProduct              = 0x000e,       /* Linksys WUSB54GSv1 */
3004         RNDIS_MASTER_INTERFACE,
3005         .driver_info            = (unsigned long) &bcm4320a_info,
3006 }, {
3007         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3008                           | USB_DEVICE_ID_MATCH_DEVICE,
3009         .idVendor               = 0x0baf,
3010         .idProduct              = 0x0111,       /* U.S. Robotics USR5420 */
3011         RNDIS_MASTER_INTERFACE,
3012         .driver_info            = (unsigned long) &bcm4320a_info,
3013 }, {
3014         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3015                           | USB_DEVICE_ID_MATCH_DEVICE,
3016         .idVendor               = 0x0411,
3017         .idProduct              = 0x004b,       /* BUFFALO WLI-USB-G54 */
3018         RNDIS_MASTER_INTERFACE,
3019         .driver_info            = (unsigned long) &bcm4320a_info,
3020 },
3021 /* Generic Wireless RNDIS devices that we don't have exact
3022  * idVendor/idProduct/chip yet.
3023  */
3024 {
3025         /* RNDIS is MSFT's un-official variant of CDC ACM */
3026         USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3027         .driver_info = (unsigned long) &rndis_wlan_info,
3028 }, {
3029         /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3030         USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3031         .driver_info = (unsigned long) &rndis_wlan_info,
3032 },
3033         { },            // END
3034 };
3035 MODULE_DEVICE_TABLE(usb, products);
3036
3037 static struct usb_driver rndis_wlan_driver = {
3038         .name =         "rndis_wlan",
3039         .id_table =     products,
3040         .probe =        usbnet_probe,
3041         .disconnect =   usbnet_disconnect,
3042         .suspend =      usbnet_suspend,
3043         .resume =       usbnet_resume,
3044 };
3045
3046 static int __init rndis_wlan_init(void)
3047 {
3048         return usb_register(&rndis_wlan_driver);
3049 }
3050 module_init(rndis_wlan_init);
3051
3052 static void __exit rndis_wlan_exit(void)
3053 {
3054         usb_deregister(&rndis_wlan_driver);
3055 }
3056 module_exit(rndis_wlan_exit);
3057
3058 MODULE_AUTHOR("Bjorge Dijkstra");
3059 MODULE_AUTHOR("Jussi Kivilinna");
3060 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3061 MODULE_LICENSE("GPL");
3062