drivers/net/wireless/rndis_wlan.c

   1 /*
   2  * Driver for RNDIS based wireless USB devices.
   3  *
   4  * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
   5  * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  *  Portions of this file are based on NDISwrapper project,
  22  *  Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
  23  *  http://ndiswrapper.sourceforge.net/
  24  */
  25
  26 // #define      DEBUG                   // error path messages, extra info
  27 // #define      VERBOSE                 // more; success messages
  28
  29 #include <linux/module.h>
  30 #include <linux/init.h>
  31 #include <linux/netdevice.h>
  32 #include <linux/etherdevice.h>
  33 #include <linux/ethtool.h>
  34 #include <linux/workqueue.h>
  35 #include <linux/mutex.h>
  36 #include <linux/mii.h>
  37 #include <linux/usb.h>
  38 #include <linux/usb/cdc.h>
  39 #include <linux/wireless.h>
  40 #include <linux/ieee80211.h>
  41 #include <linux/if_arp.h>
  42 #include <linux/ctype.h>
  43 #include <linux/spinlock.h>
  44 #include <net/iw_handler.h>
  45 #include <net/cfg80211.h>
  46 #include <linux/usb/usbnet.h>
  47 #include <linux/usb/rndis_host.h>
  48
  49
  50 /* NOTE: All these are settings for Broadcom chipset */
  51 static char modparam_country[4] = "EU";
  52 module_param_string(country, modparam_country, 4, 0444);
  53 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
  54
  55 static int modparam_frameburst = 1;
  56 module_param_named(frameburst, modparam_frameburst, int, 0444);
  57 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
  58
  59 static int modparam_afterburner = 0;
  60 module_param_named(afterburner, modparam_afterburner, int, 0444);
  61 MODULE_PARM_DESC(afterburner,
  62         "enable afterburner aka '125 High Speed Mode' (default: off)");
  63
  64 static int modparam_power_save = 0;
  65 module_param_named(power_save, modparam_power_save, int, 0444);
  66 MODULE_PARM_DESC(power_save,
  67         "set power save mode: 0=off, 1=on, 2=fast (default: off)");
  68
  69 static int modparam_power_output = 3;
  70 module_param_named(power_output, modparam_power_output, int, 0444);
  71 MODULE_PARM_DESC(power_output,
  72         "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
  73
  74 static int modparam_roamtrigger = -70;
  75 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
  76 MODULE_PARM_DESC(roamtrigger,
  77         "set roaming dBm trigger: -80=optimize for distance, "
  78                                 "-60=bandwidth (default: -70)");
  79
  80 static int modparam_roamdelta = 1;
  81 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
  82 MODULE_PARM_DESC(roamdelta,
  83         "set roaming tendency: 0=aggressive, 1=moderate, "
  84                                 "2=conservative (default: moderate)");
  85
  86 static int modparam_workaround_interval = 500;
  87 module_param_named(workaround_interval, modparam_workaround_interval,
  88                                                         int, 0444);
  89 MODULE_PARM_DESC(workaround_interval,
  90         "set stall workaround interval in msecs (default: 500)");
  91
  92
  93 /* various RNDIS OID defs */
  94 #define OID_GEN_LINK_SPEED                      cpu_to_le32(0x00010107)
  95 #define OID_GEN_RNDIS_CONFIG_PARAMETER          cpu_to_le32(0x0001021b)
  96
  97 #define OID_GEN_XMIT_OK                         cpu_to_le32(0x00020101)
  98 #define OID_GEN_RCV_OK                          cpu_to_le32(0x00020102)
  99 #define OID_GEN_XMIT_ERROR                      cpu_to_le32(0x00020103)
 100 #define OID_GEN_RCV_ERROR                       cpu_to_le32(0x00020104)
 101 #define OID_GEN_RCV_NO_BUFFER                   cpu_to_le32(0x00020105)
 102
 103 #define OID_802_3_CURRENT_ADDRESS               cpu_to_le32(0x01010102)
 104 #define OID_802_3_MULTICAST_LIST                cpu_to_le32(0x01010103)
 105 #define OID_802_3_MAXIMUM_LIST_SIZE             cpu_to_le32(0x01010104)
 106
 107 #define OID_802_11_BSSID                        cpu_to_le32(0x0d010101)
 108 #define OID_802_11_SSID                         cpu_to_le32(0x0d010102)
 109 #define OID_802_11_INFRASTRUCTURE_MODE          cpu_to_le32(0x0d010108)
 110 #define OID_802_11_ADD_WEP                      cpu_to_le32(0x0d010113)
 111 #define OID_802_11_REMOVE_WEP                   cpu_to_le32(0x0d010114)
 112 #define OID_802_11_DISASSOCIATE                 cpu_to_le32(0x0d010115)
 113 #define OID_802_11_AUTHENTICATION_MODE          cpu_to_le32(0x0d010118)
 114 #define OID_802_11_PRIVACY_FILTER               cpu_to_le32(0x0d010119)
 115 #define OID_802_11_BSSID_LIST_SCAN              cpu_to_le32(0x0d01011a)
 116 #define OID_802_11_ENCRYPTION_STATUS            cpu_to_le32(0x0d01011b)
 117 #define OID_802_11_ADD_KEY                      cpu_to_le32(0x0d01011d)
 118 #define OID_802_11_REMOVE_KEY                   cpu_to_le32(0x0d01011e)
 119 #define OID_802_11_ASSOCIATION_INFORMATION      cpu_to_le32(0x0d01011f)
 120 #define OID_802_11_PMKID                        cpu_to_le32(0x0d010123)
 121 #define OID_802_11_NETWORK_TYPES_SUPPORTED      cpu_to_le32(0x0d010203)
 122 #define OID_802_11_NETWORK_TYPE_IN_USE          cpu_to_le32(0x0d010204)
 123 #define OID_802_11_TX_POWER_LEVEL               cpu_to_le32(0x0d010205)
 124 #define OID_802_11_RSSI                         cpu_to_le32(0x0d010206)
 125 #define OID_802_11_RSSI_TRIGGER                 cpu_to_le32(0x0d010207)
 126 #define OID_802_11_FRAGMENTATION_THRESHOLD      cpu_to_le32(0x0d010209)
 127 #define OID_802_11_RTS_THRESHOLD                cpu_to_le32(0x0d01020a)
 128 #define OID_802_11_SUPPORTED_RATES              cpu_to_le32(0x0d01020e)
 129 #define OID_802_11_CONFIGURATION                cpu_to_le32(0x0d010211)
 130 #define OID_802_11_BSSID_LIST                   cpu_to_le32(0x0d010217)
 131
 132
 133 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
 134 #define WL_NOISE        -96     /* typical noise level in dBm */
 135 #define WL_SIGMAX       -32     /* typical maximum signal level in dBm */
 136
 137
 138 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
 139  * based on wireless rndis) has default txpower of 13dBm.
 140  * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
 141  *  100% : 20 mW ~ 13dBm
 142  *   75% : 15 mW ~ 12dBm
 143  *   50% : 10 mW ~ 10dBm
 144  *   25% :  5 mW ~  7dBm
 145  */
 146 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
 147 #define BCM4320_DEFAULT_TXPOWER_DBM_75  12
 148 #define BCM4320_DEFAULT_TXPOWER_DBM_50  10
 149 #define BCM4320_DEFAULT_TXPOWER_DBM_25  7
 150
 151
 152 /* codes for "status" field of completion messages */
 153 #define RNDIS_STATUS_ADAPTER_NOT_READY          cpu_to_le32(0xc0010011)
 154 #define RNDIS_STATUS_ADAPTER_NOT_OPEN           cpu_to_le32(0xc0010012)
 155
 156
 157 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
 158  * slightly modified for datatype endianess, etc
 159  */
 160 #define NDIS_802_11_LENGTH_SSID 32
 161 #define NDIS_802_11_LENGTH_RATES 8
 162 #define NDIS_802_11_LENGTH_RATES_EX 16
 163
 164 enum ndis_80211_net_type {
 165         NDIS_80211_TYPE_FREQ_HOP,
 166         NDIS_80211_TYPE_DIRECT_SEQ,
 167         NDIS_80211_TYPE_OFDM_A,
 168         NDIS_80211_TYPE_OFDM_G
 169 };
 170
 171 enum ndis_80211_net_infra {
 172         NDIS_80211_INFRA_ADHOC,
 173         NDIS_80211_INFRA_INFRA,
 174         NDIS_80211_INFRA_AUTO_UNKNOWN
 175 };
 176
 177 enum ndis_80211_auth_mode {
 178         NDIS_80211_AUTH_OPEN,
 179         NDIS_80211_AUTH_SHARED,
 180         NDIS_80211_AUTH_AUTO_SWITCH,
 181         NDIS_80211_AUTH_WPA,
 182         NDIS_80211_AUTH_WPA_PSK,
 183         NDIS_80211_AUTH_WPA_NONE,
 184         NDIS_80211_AUTH_WPA2,
 185         NDIS_80211_AUTH_WPA2_PSK
 186 };
 187
 188 enum ndis_80211_encr_status {
 189         NDIS_80211_ENCR_WEP_ENABLED,
 190         NDIS_80211_ENCR_DISABLED,
 191         NDIS_80211_ENCR_WEP_KEY_ABSENT,
 192         NDIS_80211_ENCR_NOT_SUPPORTED,
 193         NDIS_80211_ENCR_TKIP_ENABLED,
 194         NDIS_80211_ENCR_TKIP_KEY_ABSENT,
 195         NDIS_80211_ENCR_CCMP_ENABLED,
 196         NDIS_80211_ENCR_CCMP_KEY_ABSENT
 197 };
 198
 199 enum ndis_80211_priv_filter {
 200         NDIS_80211_PRIV_ACCEPT_ALL,
 201         NDIS_80211_PRIV_8021X_WEP
 202 };
 203
 204 enum ndis_80211_status_type {
 205         NDIS_80211_STATUSTYPE_AUTHENTICATION,
 206         NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
 207         NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
 208         NDIS_80211_STATUSTYPE_RADIOSTATE,
 209 };
 210
 211 enum ndis_80211_media_stream_mode {
 212         NDIS_80211_MEDIA_STREAM_OFF,
 213         NDIS_80211_MEDIA_STREAM_ON
 214 };
 215
 216 enum ndis_80211_radio_status {
 217         NDIS_80211_RADIO_STATUS_ON,
 218         NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
 219         NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
 220 };
 221
 222 enum ndis_80211_addkey_bits {
 223         NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
 224         NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
 225         NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
 226         NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
 227 };
 228
 229 enum ndis_80211_addwep_bits {
 230         NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
 231         NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
 232 };
 233
 234 struct ndis_80211_auth_request {
 235         __le32 length;
 236         u8 bssid[6];
 237         u8 padding[2];
 238         __le32 flags;
 239 } __attribute__((packed));
 240
 241 struct ndis_80211_pmkid_candidate {
 242         u8 bssid[6];
 243         u8 padding[2];
 244         __le32 flags;
 245 } __attribute__((packed));
 246
 247 struct ndis_80211_pmkid_cand_list {
 248         __le32 version;
 249         __le32 num_candidates;
 250         struct ndis_80211_pmkid_candidate candidate_list[0];
 251 } __attribute__((packed));
 252
 253 struct ndis_80211_status_indication {
 254         __le32 status_type;
 255         union {
 256                 __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                 ret = le32_to_cpu(u.get_c->len);
 737                 if (ret > *len)
 738                         *len = ret;
 739                 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
 740                 ret = rndis_error_status(u.get_c->status);
 741
 742                 if (ret < 0)
 743                         devdbg(dev, "rndis_query_oid(%s): device returned "
 744                                 "error,  0x%08x (%d)", oid_to_string(oid),
 745                                 le32_to_cpu(u.get_c->status), ret);
 746         }
 747
 748         mutex_unlock(&priv->command_lock);
 749
 750         if (u.buf != priv->command_buffer)
 751                 kfree(u.buf);
 752         return ret;
 753 }
 754
 755 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
 756 {
 757         struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
 758         union {
 759                 void                    *buf;
 760                 struct rndis_msg_hdr    *header;
 761                 struct rndis_set        *set;
 762                 struct rndis_set_c      *set_c;
 763         } u;
 764         int ret, buflen;
 765
 766         buflen = len + sizeof(*u.set);
 767         if (buflen < CONTROL_BUFFER_SIZE)
 768                 buflen = CONTROL_BUFFER_SIZE;
 769
 770         if (buflen > COMMAND_BUFFER_SIZE) {
 771                 u.buf = kmalloc(buflen, GFP_KERNEL);
 772                 if (!u.buf)
 773                         return -ENOMEM;
 774         } else {
 775                 u.buf = priv->command_buffer;
 776         }
 777
 778         mutex_lock(&priv->command_lock);
 779
 780         memset(u.set, 0, sizeof *u.set);
 781         u.set->msg_type = RNDIS_MSG_SET;
 782         u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
 783         u.set->oid = oid;
 784         u.set->len = cpu_to_le32(len);
 785         u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
 786         u.set->handle = cpu_to_le32(0);
 787         memcpy(u.buf + sizeof(*u.set), data, len);
 788
 789         priv->current_command_oid = oid;
 790         ret = rndis_command(dev, u.header, buflen);
 791         priv->current_command_oid = 0;
 792         if (ret < 0)
 793                 devdbg(dev, "rndis_set_oid(%s): rndis_command() failed, %d "
 794                         "(%08x)", oid_to_string(oid), ret,
 795                         le32_to_cpu(u.set_c->status));
 796
 797         if (ret == 0) {
 798                 ret = rndis_error_status(u.set_c->status);
 799
 800                 if (ret < 0)
 801                         devdbg(dev, "rndis_set_oid(%s): device returned error, "
 802                                 "0x%08x (%d)", oid_to_string(oid),
 803                                 le32_to_cpu(u.set_c->status), ret);
 804         }
 805
 806         mutex_unlock(&priv->command_lock);
 807
 808         if (u.buf != priv->command_buffer)
 809                 kfree(u.buf);
 810         return ret;
 811 }
 812
 813 static int rndis_reset(struct usbnet *usbdev)
 814 {
 815         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 816         struct rndis_reset *reset;
 817         int ret;
 818
 819         mutex_lock(&priv->command_lock);
 820
 821         reset = (void *)priv->command_buffer;
 822         memset(reset, 0, sizeof(*reset));
 823         reset->msg_type = RNDIS_MSG_RESET;
 824         reset->msg_len = cpu_to_le32(sizeof(*reset));
 825         priv->current_command_oid = 0;
 826         ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
 827
 828         mutex_unlock(&priv->command_lock);
 829
 830         if (ret < 0)
 831                 return ret;
 832         return 0;
 833 }
 834
 835 /*
 836  * Specs say that we can only set config parameters only soon after device
 837  * initialization.
 838  *   value_type: 0 = u32, 2 = unicode string
 839  */
 840 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
 841                                                 int value_type, void *value)
 842 {
 843         struct ndis_config_param *infobuf;
 844         int value_len, info_len, param_len, ret, i;
 845         __le16 *unibuf;
 846         __le32 *dst_value;
 847
 848         if (value_type == 0)
 849                 value_len = sizeof(__le32);
 850         else if (value_type == 2)
 851                 value_len = strlen(value) * sizeof(__le16);
 852         else
 853                 return -EINVAL;
 854
 855         param_len = strlen(param) * sizeof(__le16);
 856         info_len = sizeof(*infobuf) + param_len + value_len;
 857
 858 #ifdef DEBUG
 859         info_len += 12;
 860 #endif
 861         infobuf = kmalloc(info_len, GFP_KERNEL);
 862         if (!infobuf)
 863                 return -ENOMEM;
 864
 865 #ifdef DEBUG
 866         info_len -= 12;
 867         /* extra 12 bytes are for padding (debug output) */
 868         memset(infobuf, 0xCC, info_len + 12);
 869 #endif
 870
 871         if (value_type == 2)
 872                 devdbg(dev, "setting config parameter: %s, value: %s",
 873                                                 param, (u8 *)value);
 874         else
 875                 devdbg(dev, "setting config parameter: %s, value: %d",
 876                                                 param, *(u32 *)value);
 877
 878         infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
 879         infobuf->name_length = cpu_to_le32(param_len);
 880         infobuf->type = cpu_to_le32(value_type);
 881         infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
 882         infobuf->value_length = cpu_to_le32(value_len);
 883
 884         /* simple string to unicode string conversion */
 885         unibuf = (void *)infobuf + sizeof(*infobuf);
 886         for (i = 0; i < param_len / sizeof(__le16); i++)
 887                 unibuf[i] = cpu_to_le16(param[i]);
 888
 889         if (value_type == 2) {
 890                 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
 891                 for (i = 0; i < value_len / sizeof(__le16); i++)
 892                         unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
 893         } else {
 894                 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
 895                 *dst_value = cpu_to_le32(*(u32 *)value);
 896         }
 897
 898 #ifdef DEBUG
 899         devdbg(dev, "info buffer (len: %d):", info_len);
 900         for (i = 0; i < info_len; i += 12) {
 901                 u32 *tmp = (u32 *)((u8 *)infobuf + i);
 902                 devdbg(dev, "%08X:%08X:%08X",
 903                         cpu_to_be32(tmp[0]),
 904                         cpu_to_be32(tmp[1]),
 905                         cpu_to_be32(tmp[2]));
 906         }
 907 #endif
 908
 909         ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
 910                                                         infobuf, info_len);
 911         if (ret != 0)
 912                 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
 913
 914         kfree(infobuf);
 915         return ret;
 916 }
 917
 918 static int rndis_set_config_parameter_str(struct usbnet *dev,
 919                                                 char *param, char *value)
 920 {
 921         return rndis_set_config_parameter(dev, param, 2, value);
 922 }
 923
 924 /*
 925  * data conversion functions
 926  */
 927 static int level_to_qual(int level)
 928 {
 929         int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
 930         return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
 931 }
 932
 933 /*
 934  * common functions
 935  */
 936 static int set_infra_mode(struct usbnet *usbdev, int mode);
 937 static void restore_keys(struct usbnet *usbdev);
 938 static int rndis_check_bssid_list(struct usbnet *usbdev);
 939
 940 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
 941 {
 942         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 943         int ret;
 944
 945         ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
 946         if (ret < 0) {
 947                 devwarn(usbdev, "setting SSID failed (%08X)", ret);
 948                 return ret;
 949         }
 950         if (ret == 0) {
 951                 memcpy(&priv->essid, ssid, sizeof(priv->essid));
 952                 priv->radio_on = true;
 953                 devdbg(usbdev, "set_essid: radio_on = true");
 954         }
 955
 956         return ret;
 957 }
 958
 959 static int set_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
 960 {
 961         int ret;
 962
 963         ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
 964         if (ret < 0) {
 965                 devwarn(usbdev, "setting BSSID[%pM] failed (%08X)", bssid, ret);
 966                 return ret;
 967         }
 968
 969         return ret;
 970 }
 971
 972 static int clear_bssid(struct usbnet *usbdev)
 973 {
 974         u8 broadcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 975
 976         return set_bssid(usbdev, broadcast_mac);
 977 }
 978
 979 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
 980 {
 981         int ret, len;
 982
 983         len = ETH_ALEN;
 984         ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
 985
 986         if (ret != 0)
 987                 memset(bssid, 0, ETH_ALEN);
 988
 989         return ret;
 990 }
 991
 992 static int get_association_info(struct usbnet *usbdev,
 993                         struct ndis_80211_assoc_info *info, int len)
 994 {
 995         return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
 996                                 info, &len);
 997 }
 998
 999 static bool is_associated(struct usbnet *usbdev)
1000 {
1001         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1002         u8 bssid[ETH_ALEN];
1003         int ret;
1004
1005         if (!priv->radio_on)
1006                 return false;
1007
1008         ret = get_bssid(usbdev, bssid);
1009
1010         return (ret == 0 && !is_zero_ether_addr(bssid));
1011 }
1012
1013 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1014 {
1015         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1016         struct ndis_80211_ssid ssid;
1017         int i, ret = 0;
1018
1019         if (priv->radio_on) {
1020                 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1021                 if (ret == 0) {
1022                         priv->radio_on = false;
1023                         devdbg(usbdev, "disassociate: radio_on = false");
1024
1025                         if (reset_ssid)
1026                                 msleep(100);
1027                 }
1028         }
1029
1030         /* disassociate causes radio to be turned off; if reset_ssid
1031          * is given, set random ssid to enable radio */
1032         if (reset_ssid) {
1033                 /* Set device to infrastructure mode so we don't get ad-hoc
1034                  * 'media connect' indications with the random ssid.
1035                  */
1036                 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1037
1038                 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1039                 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1040                 ssid.essid[0] = 0x1;
1041                 ssid.essid[1] = 0xff;
1042                 for (i = 2; i < sizeof(ssid.essid); i++)
1043                         ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1044                 ret = set_essid(usbdev, &ssid);
1045         }
1046         return ret;
1047 }
1048
1049 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1050                                 enum nl80211_auth_type auth_type, int keymgmt)
1051 {
1052         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1053         __le32 tmp;
1054         int auth_mode, ret;
1055
1056         devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
1057                 "keymgmt=0x%x", wpa_version, auth_type, keymgmt);
1058
1059         if (wpa_version & NL80211_WPA_VERSION_2) {
1060                 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1061                         auth_mode = NDIS_80211_AUTH_WPA2;
1062                 else
1063                         auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1064         } else if (wpa_version & NL80211_WPA_VERSION_1) {
1065                 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1066                         auth_mode = NDIS_80211_AUTH_WPA;
1067                 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1068                         auth_mode = NDIS_80211_AUTH_WPA_PSK;
1069                 else
1070                         auth_mode = NDIS_80211_AUTH_WPA_NONE;
1071         } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1072                 auth_mode = NDIS_80211_AUTH_SHARED;
1073         else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1074                 auth_mode = NDIS_80211_AUTH_OPEN;
1075         else
1076                 return -ENOTSUPP;
1077
1078         tmp = cpu_to_le32(auth_mode);
1079         ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1080                                                                 sizeof(tmp));
1081         if (ret != 0) {
1082                 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
1083                 return ret;
1084         }
1085
1086         priv->wpa_version = wpa_version;
1087         priv->wpa_auth_type = auth_type;
1088         priv->wpa_keymgmt = keymgmt;
1089
1090         return 0;
1091 }
1092
1093 static int set_priv_filter(struct usbnet *usbdev)
1094 {
1095         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1096         __le32 tmp;
1097
1098         devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
1099
1100         if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1101             priv->wpa_version & NL80211_WPA_VERSION_1)
1102                 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1103         else
1104                 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1105
1106         return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1107                                                                 sizeof(tmp));
1108 }
1109
1110 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1111 {
1112         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1113         __le32 tmp;
1114         int encr_mode, ret;
1115
1116         devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
1117                 pairwise, groupwise);
1118
1119         if (pairwise & RNDIS_WLAN_ALG_CCMP)
1120                 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1121         else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1122                 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1123         else if (pairwise & RNDIS_WLAN_ALG_WEP)
1124                 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1125         else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1126                 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1127         else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1128                 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1129         else
1130                 encr_mode = NDIS_80211_ENCR_DISABLED;
1131
1132         tmp = cpu_to_le32(encr_mode);
1133         ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1134                                                                 sizeof(tmp));
1135         if (ret != 0) {
1136                 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
1137                 return ret;
1138         }
1139
1140         priv->wpa_cipher_pair = pairwise;
1141         priv->wpa_cipher_group = groupwise;
1142         return 0;
1143 }
1144
1145 static int set_infra_mode(struct usbnet *usbdev, int mode)
1146 {
1147         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1148         __le32 tmp;
1149         int ret;
1150
1151         devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
1152
1153         tmp = cpu_to_le32(mode);
1154         ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1155                                                                 sizeof(tmp));
1156         if (ret != 0) {
1157                 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
1158                 return ret;
1159         }
1160
1161         /* NDIS drivers clear keys when infrastructure mode is
1162          * changed. But Linux tools assume otherwise. So set the
1163          * keys */
1164         restore_keys(usbdev);
1165
1166         priv->infra_mode = mode;
1167         return 0;
1168 }
1169
1170 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1171 {
1172         __le32 tmp;
1173
1174         devdbg(usbdev, "set_rts_threshold %i", rts_threshold);
1175
1176         if (rts_threshold < 0 || rts_threshold > 2347)
1177                 rts_threshold = 2347;
1178
1179         tmp = cpu_to_le32(rts_threshold);
1180         return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1181                                                                 sizeof(tmp));
1182 }
1183
1184 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1185 {
1186         __le32 tmp;
1187
1188         devdbg(usbdev, "set_frag_threshold %i", frag_threshold);
1189
1190         if (frag_threshold < 256 || frag_threshold > 2346)
1191                 frag_threshold = 2346;
1192
1193         tmp = cpu_to_le32(frag_threshold);
1194         return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1195                                                                 sizeof(tmp));
1196 }
1197
1198 static void set_default_iw_params(struct usbnet *usbdev)
1199 {
1200         set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1201         set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1202                                                 RNDIS_WLAN_KEY_MGMT_NONE);
1203         set_priv_filter(usbdev);
1204         set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1205 }
1206
1207 static int deauthenticate(struct usbnet *usbdev)
1208 {
1209         int ret;
1210
1211         ret = disassociate(usbdev, true);
1212         set_default_iw_params(usbdev);
1213         return ret;
1214 }
1215
1216 static int set_channel(struct usbnet *usbdev, int channel)
1217 {
1218         struct ndis_80211_conf config;
1219         unsigned int dsconfig;
1220         int len, ret;
1221
1222         devdbg(usbdev, "set_channel(%d)", channel);
1223
1224         /* this OID is valid only when not associated */
1225         if (is_associated(usbdev))
1226                 return 0;
1227
1228         dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1229
1230         len = sizeof(config);
1231         ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1232         if (ret < 0) {
1233                 devdbg(usbdev, "set_channel: querying configuration failed");
1234                 return ret;
1235         }
1236
1237         config.ds_config = cpu_to_le32(dsconfig);
1238         ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1239                                                                 sizeof(config));
1240
1241         devdbg(usbdev, "set_channel: %d -> %d", channel, ret);
1242
1243         return ret;
1244 }
1245
1246 /* index must be 0 - N, as per NDIS  */
1247 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1248                                                                 int index)
1249 {
1250         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1251         struct ndis_80211_wep_key ndis_key;
1252         u32 cipher;
1253         int ret;
1254
1255         devdbg(usbdev, "add_wep_key(idx: %d, len: %d)", index, key_len);
1256
1257         if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1258                 return -EINVAL;
1259
1260         if (key_len == 5)
1261                 cipher = WLAN_CIPHER_SUITE_WEP40;
1262         else
1263                 cipher = WLAN_CIPHER_SUITE_WEP104;
1264
1265         memset(&ndis_key, 0, sizeof(ndis_key));
1266
1267         ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1268         ndis_key.length = cpu_to_le32(key_len);
1269         ndis_key.index = cpu_to_le32(index);
1270         memcpy(&ndis_key.material, key, key_len);
1271
1272         if (index == priv->encr_tx_key_index) {
1273                 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1274                 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1275                                                         RNDIS_WLAN_ALG_NONE);
1276                 if (ret)
1277                         devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1278                                                                         ret);
1279         }
1280
1281         ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1282                                                         sizeof(ndis_key));
1283         if (ret != 0) {
1284                 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1285                                                         index+1, ret);
1286                 return ret;
1287         }
1288
1289         priv->encr_keys[index].len = key_len;
1290         priv->encr_keys[index].cipher = cipher;
1291         memcpy(&priv->encr_keys[index].material, key, key_len);
1292         memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1293
1294         return 0;
1295 }
1296
1297 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1298                         int index, const u8 *addr, const u8 *rx_seq,
1299                         int seq_len, u32 cipher, __le32 flags)
1300 {
1301         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1302         struct ndis_80211_key ndis_key;
1303         bool is_addr_ok;
1304         int ret;
1305
1306         if (index < 0 || index >= 4) {
1307                 devdbg(usbdev, "add_wpa_key: index out of range (%i)", index);
1308                 return -EINVAL;
1309         }
1310         if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1311                 devdbg(usbdev, "add_wpa_key: key length out of range (%i)",
1312                         key_len);
1313                 return -EINVAL;
1314         }
1315         if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1316                 if (!rx_seq || seq_len <= 0) {
1317                         devdbg(usbdev, "add_wpa_key: recv seq flag without"
1318                                         "buffer");
1319                         return -EINVAL;
1320                 }
1321                 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1322                         devdbg(usbdev, "add_wpa_key: too big recv seq buffer");
1323                         return -EINVAL;
1324                 }
1325         }
1326
1327         is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1328                                         !is_broadcast_ether_addr(addr);
1329         if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1330                 devdbg(usbdev, "add_wpa_key: pairwise but bssid invalid (%pM)",
1331                         addr);
1332                 return -EINVAL;
1333         }
1334
1335         devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1336                         !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1337                         !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1338                         !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1339
1340         memset(&ndis_key, 0, sizeof(ndis_key));
1341
1342         ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1343                                 sizeof(ndis_key.material) + key_len);
1344         ndis_key.length = cpu_to_le32(key_len);
1345         ndis_key.index = cpu_to_le32(index) | flags;
1346
1347         if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1348                 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1349                  * different order than NDIS spec, so swap the order here. */
1350                 memcpy(ndis_key.material, key, 16);
1351                 memcpy(ndis_key.material + 16, key + 24, 8);
1352                 memcpy(ndis_key.material + 24, key + 16, 8);
1353         } else
1354                 memcpy(ndis_key.material, key, key_len);
1355
1356         if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1357                 memcpy(ndis_key.rsc, rx_seq, seq_len);
1358
1359         if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1360                 /* pairwise key */
1361                 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1362         } else {
1363                 /* group key */
1364                 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1365                         memset(ndis_key.bssid, 0xff, ETH_ALEN);
1366                 else
1367                         get_bssid(usbdev, ndis_key.bssid);
1368         }
1369
1370         ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1371                                         le32_to_cpu(ndis_key.size));
1372         devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1373         if (ret != 0)
1374                 return ret;
1375
1376         memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1377         priv->encr_keys[index].len = key_len;
1378         priv->encr_keys[index].cipher = cipher;
1379         memcpy(&priv->encr_keys[index].material, key, key_len);
1380         if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1381                 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1382         else
1383                 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1384
1385         if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1386                 priv->encr_tx_key_index = index;
1387
1388         return 0;
1389 }
1390
1391 static int restore_key(struct usbnet *usbdev, int key_idx)
1392 {
1393         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1394         struct rndis_wlan_encr_key key;
1395
1396         if (is_wpa_key(priv, key_idx))
1397                 return 0;
1398
1399         key = priv->encr_keys[key_idx];
1400
1401         devdbg(usbdev, "restore_key: %i:%i", key_idx, key.len);
1402
1403         if (key.len == 0)
1404                 return 0;
1405
1406         return add_wep_key(usbdev, key.material, key.len, key_idx);
1407 }
1408
1409 static void restore_keys(struct usbnet *usbdev)
1410 {
1411         int i;
1412
1413         for (i = 0; i < 4; i++)
1414                 restore_key(usbdev, i);
1415 }
1416
1417 static void clear_key(struct rndis_wlan_private *priv, int idx)
1418 {
1419         memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1420 }
1421
1422 /* remove_key is for both wep and wpa */
1423 static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
1424 {
1425         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1426         struct ndis_80211_remove_key remove_key;
1427         __le32 keyindex;
1428         bool is_wpa;
1429         int ret;
1430
1431         if (priv->encr_keys[index].len == 0)
1432                 return 0;
1433
1434         is_wpa = is_wpa_key(priv, index);
1435
1436         devdbg(usbdev, "remove_key: %i:%s:%i", index, is_wpa ? "wpa" : "wep",
1437                 priv->encr_keys[index].len);
1438
1439         clear_key(priv, index);
1440
1441         if (is_wpa) {
1442                 remove_key.size = cpu_to_le32(sizeof(remove_key));
1443                 remove_key.index = cpu_to_le32(index);
1444                 if (bssid) {
1445                         /* pairwise key */
1446                         if (!is_broadcast_ether_addr(bssid))
1447                                 remove_key.index |=
1448                                         NDIS_80211_ADDKEY_PAIRWISE_KEY;
1449                         memcpy(remove_key.bssid, bssid,
1450                                         sizeof(remove_key.bssid));
1451                 } else
1452                         memset(remove_key.bssid, 0xff,
1453                                                 sizeof(remove_key.bssid));
1454
1455                 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1456                                                         sizeof(remove_key));
1457                 if (ret != 0)
1458                         return ret;
1459         } else {
1460                 keyindex = cpu_to_le32(index);
1461                 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1462                                                         sizeof(keyindex));
1463                 if (ret != 0) {
1464                         devwarn(usbdev,
1465                                 "removing encryption key %d failed (%08X)",
1466                                 index, ret);
1467                         return ret;
1468                 }
1469         }
1470
1471         /* if it is transmit key, disable encryption */
1472         if (index == priv->encr_tx_key_index)
1473                 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1474
1475         return 0;
1476 }
1477
1478 static void set_multicast_list(struct usbnet *usbdev)
1479 {
1480         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1481         struct dev_mc_list *mclist;
1482         __le32 filter;
1483         int ret, i, size;
1484         char *buf;
1485
1486         filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1487
1488         if (usbdev->net->flags & IFF_PROMISC) {
1489                 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1490                         RNDIS_PACKET_TYPE_ALL_LOCAL;
1491         } else if (usbdev->net->flags & IFF_ALLMULTI ||
1492                    usbdev->net->mc_count > priv->multicast_size) {
1493                 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1494         } else if (usbdev->net->mc_count > 0) {
1495                 size = min(priv->multicast_size, usbdev->net->mc_count);
1496                 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1497                 if (!buf) {
1498                         devwarn(usbdev,
1499                                 "couldn't alloc %d bytes of memory",
1500                                 size * ETH_ALEN);
1501                         return;
1502                 }
1503
1504                 mclist = usbdev->net->mc_list;
1505                 for (i = 0; i < size && mclist; mclist = mclist->next) {
1506                         if (mclist->dmi_addrlen != ETH_ALEN)
1507                                 continue;
1508
1509                         memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1510                         i++;
1511                 }
1512
1513                 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1514                                                                 i * ETH_ALEN);
1515                 if (ret == 0 && i > 0)
1516                         filter |= RNDIS_PACKET_TYPE_MULTICAST;
1517                 else
1518                         filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1519
1520                 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1521                                                 i, priv->multicast_size, ret);
1522
1523                 kfree(buf);
1524         }
1525
1526         ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1527                                                         sizeof(filter));
1528         if (ret < 0) {
1529                 devwarn(usbdev, "couldn't set packet filter: %08x",
1530                                                         le32_to_cpu(filter));
1531         }
1532
1533         devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1534                                                 le32_to_cpu(filter), ret);
1535 }
1536
1537 /*
1538  * cfg80211 ops
1539  */
1540 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1541                                         struct net_device *dev,
1542                                         enum nl80211_iftype type, u32 *flags,
1543                                         struct vif_params *params)
1544 {
1545         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1546         struct usbnet *usbdev = priv->usbdev;
1547         int mode;
1548
1549         switch (type) {
1550         case NL80211_IFTYPE_ADHOC:
1551                 mode = NDIS_80211_INFRA_ADHOC;
1552                 break;
1553         case NL80211_IFTYPE_STATION:
1554                 mode = NDIS_80211_INFRA_INFRA;
1555                 break;
1556         default:
1557                 return -EINVAL;
1558         }
1559
1560         priv->wdev.iftype = type;
1561
1562         return set_infra_mode(usbdev, mode);
1563 }
1564
1565 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1566 {
1567         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1568         struct usbnet *usbdev = priv->usbdev;
1569         int err;
1570
1571         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1572                 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1573                 if (err < 0)
1574                         return err;
1575         }
1576
1577         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1578                 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1579                 if (err < 0)
1580                         return err;
1581         }
1582
1583         return 0;
1584 }
1585
1586 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
1587                                 int dbm)
1588 {
1589         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1590         struct usbnet *usbdev = priv->usbdev;
1591
1592         devdbg(usbdev, "rndis_set_tx_power type:0x%x dbm:%i", type, dbm);
1593
1594         /* Device doesn't support changing txpower after initialization, only
1595          * turn off/on radio. Support 'auto' mode and setting same dBm that is
1596          * currently used.
1597          */
1598         if (type == TX_POWER_AUTOMATIC || dbm == get_bcm4320_power_dbm(priv)) {
1599                 if (!priv->radio_on)
1600                         disassociate(usbdev, true); /* turn on radio */
1601
1602                 return 0;
1603         }
1604
1605         return -ENOTSUPP;
1606 }
1607
1608 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1609 {
1610         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1611         struct usbnet *usbdev = priv->usbdev;
1612
1613         *dbm = get_bcm4320_power_dbm(priv);
1614
1615         devdbg(usbdev, "rndis_get_tx_power dbm:%i", *dbm);
1616
1617         return 0;
1618 }
1619
1620 #define SCAN_DELAY_JIFFIES (6 * HZ)
1621 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1622                         struct cfg80211_scan_request *request)
1623 {
1624         struct usbnet *usbdev = netdev_priv(dev);
1625         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1626         int ret;
1627         __le32 tmp;
1628
1629         devdbg(usbdev, "cfg80211.scan");
1630
1631         /* Get current bssid list from device before new scan, as new scan
1632          * clears internal bssid list.
1633          */
1634         rndis_check_bssid_list(usbdev);
1635
1636         if (!request)
1637                 return -EINVAL;
1638
1639         if (priv->scan_request && priv->scan_request != request)
1640                 return -EBUSY;
1641
1642         priv->scan_request = request;
1643
1644         tmp = cpu_to_le32(1);
1645         ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1646                                                         sizeof(tmp));
1647         if (ret == 0) {
1648                 /* Wait before retrieving scan results from device */
1649                 queue_delayed_work(priv->workqueue, &priv->scan_work,
1650                         SCAN_DELAY_JIFFIES);
1651         }
1652
1653         return ret;
1654 }
1655
1656 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1657                                         struct ndis_80211_bssid_ex *bssid)
1658 {
1659         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1660         struct ieee80211_channel *channel;
1661         s32 signal;
1662         u64 timestamp;
1663         u16 capability;
1664         u16 beacon_interval;
1665         struct ndis_80211_fixed_ies *fixed;
1666         int ie_len, bssid_len;
1667         u8 *ie;
1668
1669         devdbg(usbdev, " found bssid: '%.32s' [%pM]", bssid->ssid.essid,
1670                                                         bssid->mac);
1671
1672         /* parse bssid structure */
1673         bssid_len = le32_to_cpu(bssid->length);
1674
1675         if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1676                         sizeof(struct ndis_80211_fixed_ies))
1677                 return NULL;
1678
1679         fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1680
1681         ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1682         ie_len = min(bssid_len - (int)sizeof(*bssid),
1683                                         (int)le32_to_cpu(bssid->ie_length));
1684         ie_len -= sizeof(struct ndis_80211_fixed_ies);
1685         if (ie_len < 0)
1686                 return NULL;
1687
1688         /* extract data for cfg80211_inform_bss */
1689         channel = ieee80211_get_channel(priv->wdev.wiphy,
1690                         KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1691         if (!channel)
1692                 return NULL;
1693
1694         signal = level_to_qual(le32_to_cpu(bssid->rssi));
1695         timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1696         capability = le16_to_cpu(fixed->capabilities);
1697         beacon_interval = le16_to_cpu(fixed->beacon_interval);
1698
1699         return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1700                 timestamp, capability, beacon_interval, ie, ie_len, signal,
1701                 GFP_KERNEL);
1702 }
1703
1704 static int rndis_check_bssid_list(struct usbnet *usbdev)
1705 {
1706         void *buf = NULL;
1707         struct ndis_80211_bssid_list_ex *bssid_list;
1708         struct ndis_80211_bssid_ex *bssid;
1709         int ret = -EINVAL, len, count, bssid_len;
1710         bool resized = false;
1711
1712         devdbg(usbdev, "check_bssid_list");
1713
1714         len = CONTROL_BUFFER_SIZE;
1715 resize_buf:
1716         buf = kmalloc(len, GFP_KERNEL);
1717         if (!buf) {
1718                 ret = -ENOMEM;
1719                 goto out;
1720         }
1721
1722         ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1723         if (ret != 0)
1724                 goto out;
1725
1726         if (!resized && len > CONTROL_BUFFER_SIZE) {
1727                 resized = true;
1728                 kfree(buf);
1729                 goto resize_buf;
1730         }
1731
1732         bssid_list = buf;
1733         bssid = bssid_list->bssid;
1734         bssid_len = le32_to_cpu(bssid->length);
1735         count = le32_to_cpu(bssid_list->num_items);
1736         devdbg(usbdev, "check_bssid_list: %d BSSIDs found (buflen: %d)", count,
1737                                                                         len);
1738
1739         while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1740                 rndis_bss_info_update(usbdev, bssid);
1741
1742                 bssid = (void *)bssid + bssid_len;
1743                 bssid_len = le32_to_cpu(bssid->length);
1744                 count--;
1745         }
1746
1747 out:
1748         kfree(buf);
1749         return ret;
1750 }
1751
1752 static void rndis_get_scan_results(struct work_struct *work)
1753 {
1754         struct rndis_wlan_private *priv =
1755                 container_of(work, struct rndis_wlan_private, scan_work.work);
1756         struct usbnet *usbdev = priv->usbdev;
1757         int ret;
1758
1759         devdbg(usbdev, "get_scan_results");
1760
1761         if (!priv->scan_request)
1762                 return;
1763
1764         ret = rndis_check_bssid_list(usbdev);
1765
1766         cfg80211_scan_done(priv->scan_request, ret < 0);
1767
1768         priv->scan_request = NULL;
1769 }
1770
1771 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
1772                                         struct cfg80211_connect_params *sme)
1773 {
1774         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1775         struct usbnet *usbdev = priv->usbdev;
1776         struct ieee80211_channel *channel = sme->channel;
1777         struct ndis_80211_ssid ssid;
1778         int pairwise = RNDIS_WLAN_ALG_NONE;
1779         int groupwise = RNDIS_WLAN_ALG_NONE;
1780         int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
1781         int length, i, ret, chan = -1;
1782
1783         if (channel)
1784                 chan = ieee80211_frequency_to_channel(channel->center_freq);
1785
1786         groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
1787         for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
1788                 pairwise |=
1789                         rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
1790
1791         if (sme->crypto.n_ciphers_pairwise > 0 &&
1792                         pairwise == RNDIS_WLAN_ALG_NONE) {
1793                 deverr(usbdev, "Unsupported pairwise cipher");
1794                 return -ENOTSUPP;
1795         }
1796
1797         for (i = 0; i < sme->crypto.n_akm_suites; i++)
1798                 keymgmt |=
1799                         rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
1800
1801         if (sme->crypto.n_akm_suites > 0 &&
1802                         keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
1803                 deverr(usbdev, "Invalid keymgmt");
1804                 return -ENOTSUPP;
1805         }
1806
1807         devdbg(usbdev, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:"
1808                         "0x%x]:0x%x)", sme->ssid, sme->bssid, chan,
1809                         sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
1810                         groupwise, pairwise, keymgmt);
1811
1812         if (is_associated(usbdev))
1813                 disassociate(usbdev, false);
1814
1815         ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1816         if (ret < 0) {
1817                 devdbg(usbdev, "connect: set_infra_mode failed, %d", ret);
1818                 goto err_turn_radio_on;
1819         }
1820
1821         ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
1822                                                                 keymgmt);
1823         if (ret < 0) {
1824                 devdbg(usbdev, "connect: set_auth_mode failed, %d", ret);
1825                 goto err_turn_radio_on;
1826         }
1827
1828         set_priv_filter(usbdev);
1829
1830         ret = set_encr_mode(usbdev, pairwise, groupwise);
1831         if (ret < 0) {
1832                 devdbg(usbdev, "connect: set_encr_mode failed, %d", ret);
1833                 goto err_turn_radio_on;
1834         }
1835
1836         if (channel) {
1837                 ret = set_channel(usbdev, chan);
1838                 if (ret < 0) {
1839                         devdbg(usbdev, "connect: set_channel failed, %d", ret);
1840                         goto err_turn_radio_on;
1841                 }
1842         }
1843
1844         if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
1845                 priv->encr_tx_key_index = sme->key_idx;
1846                 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
1847                 if (ret < 0) {
1848                         devdbg(usbdev, "connect: add_wep_key failed, %d "
1849                                 "(%d, %d)", ret, sme->key_len, sme->key_idx);
1850                         goto err_turn_radio_on;
1851                 }
1852         }
1853
1854         if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
1855                                 !is_broadcast_ether_addr(sme->bssid)) {
1856                 ret = set_bssid(usbdev, sme->bssid);
1857                 if (ret < 0) {
1858                         devdbg(usbdev, "connect: set_bssid failed, %d", ret);
1859                         goto err_turn_radio_on;
1860                 }
1861         } else
1862                 clear_bssid(usbdev);
1863
1864         length = sme->ssid_len;
1865         if (length > NDIS_802_11_LENGTH_SSID)
1866                 length = NDIS_802_11_LENGTH_SSID;
1867
1868         memset(&ssid, 0, sizeof(ssid));
1869         ssid.length = cpu_to_le32(length);
1870         memcpy(ssid.essid, sme->ssid, length);
1871
1872         /* Pause and purge rx queue, so we don't pass packets before
1873          * 'media connect'-indication.
1874          */
1875         usbnet_pause_rx(usbdev);
1876         usbnet_purge_paused_rxq(usbdev);
1877
1878         ret = set_essid(usbdev, &ssid);
1879         if (ret < 0)
1880                 devdbg(usbdev, "connect: set_essid failed, %d", ret);
1881         return ret;
1882
1883 err_turn_radio_on:
1884         disassociate(usbdev, true);
1885
1886         return ret;
1887 }
1888
1889 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
1890                                                                 u16 reason_code)
1891 {
1892         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1893         struct usbnet *usbdev = priv->usbdev;
1894
1895         devdbg(usbdev, "cfg80211.disconnect(%d)", reason_code);
1896
1897         priv->connected = false;
1898         memset(priv->bssid, 0, ETH_ALEN);
1899
1900         return deauthenticate(usbdev);
1901 }
1902
1903 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1904                                         struct cfg80211_ibss_params *params)
1905 {
1906         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1907         struct usbnet *usbdev = priv->usbdev;
1908         struct ieee80211_channel *channel = params->channel;
1909         struct ndis_80211_ssid ssid;
1910         enum nl80211_auth_type auth_type;
1911         int ret, alg, length, chan = -1;
1912
1913         if (channel)
1914                 chan = ieee80211_frequency_to_channel(channel->center_freq);
1915
1916         /* TODO: How to handle ad-hoc encryption?
1917          * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
1918          * pre-shared for encryption (open/shared/wpa), is key set before
1919          * join_ibss? Which auth_type to use (not in params)? What about WPA?
1920          */
1921         if (params->privacy) {
1922                 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
1923                 alg = RNDIS_WLAN_ALG_WEP;
1924         } else {
1925                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1926                 alg = RNDIS_WLAN_ALG_NONE;
1927         }
1928
1929         devdbg(usbdev, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)", params->ssid,
1930                                         params->bssid, chan, params->privacy);
1931
1932         if (is_associated(usbdev))
1933                 disassociate(usbdev, false);
1934
1935         ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
1936         if (ret < 0) {
1937                 devdbg(usbdev, "join_ibss: set_infra_mode failed, %d", ret);
1938                 goto err_turn_radio_on;
1939         }
1940
1941         ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
1942         if (ret < 0) {
1943                 devdbg(usbdev, "join_ibss: set_auth_mode failed, %d", ret);
1944                 goto err_turn_radio_on;
1945         }
1946
1947         set_priv_filter(usbdev);
1948
1949         ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
1950         if (ret < 0) {
1951                 devdbg(usbdev, "join_ibss: set_encr_mode failed, %d", ret);
1952                 goto err_turn_radio_on;
1953         }
1954
1955         if (channel) {
1956                 ret = set_channel(usbdev, chan);
1957                 if (ret < 0) {
1958                         devdbg(usbdev, "join_ibss: set_channel failed, %d",
1959                                 ret);
1960                         goto err_turn_radio_on;
1961                 }
1962         }
1963
1964         if (params->bssid && !is_zero_ether_addr(params->bssid) &&
1965                                 !is_broadcast_ether_addr(params->bssid)) {
1966                 ret = set_bssid(usbdev, params->bssid);
1967                 if (ret < 0) {
1968                         devdbg(usbdev, "join_ibss: set_bssid failed, %d", ret);
1969                         goto err_turn_radio_on;
1970                 }
1971         } else
1972                 clear_bssid(usbdev);
1973
1974         length = params->ssid_len;
1975         if (length > NDIS_802_11_LENGTH_SSID)
1976                 length = NDIS_802_11_LENGTH_SSID;
1977
1978         memset(&ssid, 0, sizeof(ssid));
1979         ssid.length = cpu_to_le32(length);
1980         memcpy(ssid.essid, params->ssid, length);
1981
1982         /* Don't need to pause rx queue for ad-hoc. */
1983         usbnet_purge_paused_rxq(usbdev);
1984         usbnet_resume_rx(usbdev);
1985
1986         ret = set_essid(usbdev, &ssid);
1987         if (ret < 0)
1988                 devdbg(usbdev, "join_ibss: set_essid failed, %d", ret);
1989         return ret;
1990
1991 err_turn_radio_on:
1992         disassociate(usbdev, true);
1993
1994         return ret;
1995 }
1996
1997 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1998 {
1999         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2000         struct usbnet *usbdev = priv->usbdev;
2001
2002         devdbg(usbdev, "cfg80211.leave_ibss()");
2003
2004         priv->connected = false;
2005         memset(priv->bssid, 0, ETH_ALEN);
2006
2007         return deauthenticate(usbdev);
2008 }
2009
2010 static int rndis_set_channel(struct wiphy *wiphy,
2011         struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2012 {
2013         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2014         struct usbnet *usbdev = priv->usbdev;
2015
2016         return set_channel(usbdev,
2017                         ieee80211_frequency_to_channel(chan->center_freq));
2018 }
2019
2020 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2021                                         u8 key_index, const u8 *mac_addr,
2022                                         struct key_params *params)
2023 {
2024         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2025         struct usbnet *usbdev = priv->usbdev;
2026         __le32 flags;
2027
2028         devdbg(usbdev, "rndis_add_key(%i, %pM, %08x)", key_index, mac_addr,
2029                                                         params->cipher);
2030
2031         switch (params->cipher) {
2032         case WLAN_CIPHER_SUITE_WEP40:
2033         case WLAN_CIPHER_SUITE_WEP104:
2034                 return add_wep_key(usbdev, params->key, params->key_len,
2035                                                                 key_index);
2036         case WLAN_CIPHER_SUITE_TKIP:
2037         case WLAN_CIPHER_SUITE_CCMP:
2038                 flags = 0;
2039
2040                 if (params->seq && params->seq_len > 0)
2041                         flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2042                 if (mac_addr)
2043                         flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2044                                         NDIS_80211_ADDKEY_TRANSMIT_KEY;
2045
2046                 return add_wpa_key(usbdev, params->key, params->key_len,
2047                                 key_index, mac_addr, params->seq,
2048                                 params->seq_len, params->cipher, flags);
2049         default:
2050                 devdbg(usbdev, "rndis_add_key: unsupported cipher %08x",
2051                                                         params->cipher);
2052                 return -ENOTSUPP;
2053         }
2054 }
2055
2056 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2057                                         u8 key_index, const u8 *mac_addr)
2058 {
2059         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2060         struct usbnet *usbdev = priv->usbdev;
2061
2062         devdbg(usbdev, "rndis_del_key(%i, %pM)", key_index, mac_addr);
2063
2064         return remove_key(usbdev, key_index, mac_addr);
2065 }
2066
2067 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2068                                                                 u8 key_index)
2069 {
2070         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2071         struct usbnet *usbdev = priv->usbdev;
2072         struct rndis_wlan_encr_key key;
2073
2074         devdbg(usbdev, "rndis_set_default_key(%i)", key_index);
2075
2076         priv->encr_tx_key_index = key_index;
2077
2078         key = priv->encr_keys[key_index];
2079
2080         return add_wep_key(usbdev, key.material, key.len, key_index);
2081 }
2082
2083 static void rndis_fill_station_info(struct usbnet *usbdev,
2084                                                 struct station_info *sinfo)
2085 {
2086         __le32 linkspeed, rssi;
2087         int ret, len;
2088
2089         memset(sinfo, 0, sizeof(*sinfo));
2090
2091         len = sizeof(linkspeed);
2092         ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2093         if (ret == 0) {
2094                 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2095                 sinfo->filled |= STATION_INFO_TX_BITRATE;
2096         }
2097
2098         len = sizeof(rssi);
2099         ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2100         if (ret == 0) {
2101                 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2102                 sinfo->filled |= STATION_INFO_SIGNAL;
2103         }
2104 }
2105
2106 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2107                                         u8 *mac, struct station_info *sinfo)
2108 {
2109         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2110         struct usbnet *usbdev = priv->usbdev;
2111
2112         if (compare_ether_addr(priv->bssid, mac))
2113                 return -ENOENT;
2114
2115         rndis_fill_station_info(usbdev, sinfo);
2116
2117         return 0;
2118 }
2119
2120 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2121                                int idx, u8 *mac, struct station_info *sinfo)
2122 {
2123         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2124         struct usbnet *usbdev = priv->usbdev;
2125
2126         if (idx != 0)
2127                 return -ENOENT;
2128
2129         memcpy(mac, priv->bssid, ETH_ALEN);
2130
2131         rndis_fill_station_info(usbdev, sinfo);
2132
2133         return 0;
2134 }
2135
2136 /*
2137  * workers, indication handlers, device poller
2138  */
2139 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2140 {
2141         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2142         struct ndis_80211_assoc_info *info;
2143         u8 assoc_buf[sizeof(*info) + IW_CUSTOM_MAX + 32];
2144         u8 bssid[ETH_ALEN];
2145         int resp_ie_len, req_ie_len;
2146         u8 *req_ie, *resp_ie;
2147         int ret, offset;
2148         bool roamed = false;
2149
2150         if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2151                 /* received media connect indication while connected, either
2152                  * device reassociated with same AP or roamed to new. */
2153                 roamed = true;
2154         }
2155
2156         req_ie_len = 0;
2157         resp_ie_len = 0;
2158         req_ie = NULL;
2159         resp_ie = NULL;
2160
2161         if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2162                 memset(assoc_buf, 0, sizeof(assoc_buf));
2163                 info = (void *)assoc_buf;
2164
2165                 /* Get association info IEs from device and send them back to
2166                  * userspace. */
2167                 ret = get_association_info(usbdev, info, sizeof(assoc_buf));
2168                 if (!ret) {
2169                         req_ie_len = le32_to_cpu(info->req_ie_length);
2170                         if (req_ie_len > 0) {
2171                                 offset = le32_to_cpu(info->offset_req_ies);
2172                                 req_ie = (u8 *)info + offset;
2173                         }
2174
2175                         resp_ie_len = le32_to_cpu(info->resp_ie_length);
2176                         if (resp_ie_len > 0) {
2177                                 offset = le32_to_cpu(info->offset_resp_ies);
2178                                 resp_ie = (u8 *)info + offset;
2179                         }
2180                 }
2181         } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2182                 return;
2183
2184         ret = get_bssid(usbdev, bssid);
2185         if (ret < 0)
2186                 memset(bssid, 0, sizeof(bssid));
2187
2188         devdbg(usbdev, "link up work: [%pM] %s", bssid, roamed ? "roamed" : "");
2189
2190         /* Internal bss list in device always contains at least the currently
2191          * connected bss and we can get it to cfg80211 with
2192          * rndis_check_bssid_list().
2193          * NOTE: This is true for Broadcom chip, but not mentioned in RNDIS
2194          * spec.
2195          */
2196         rndis_check_bssid_list(usbdev);
2197
2198         if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2199                 if (!roamed)
2200                         cfg80211_connect_result(usbdev->net, bssid, req_ie,
2201                                                 req_ie_len, resp_ie,
2202                                                 resp_ie_len, 0, GFP_KERNEL);
2203                 else
2204                         cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len,
2205                                         resp_ie, resp_ie_len, GFP_KERNEL);
2206         } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2207                 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2208
2209         priv->connected = true;
2210         memcpy(priv->bssid, bssid, ETH_ALEN);
2211
2212         usbnet_resume_rx(usbdev);
2213         netif_carrier_on(usbdev->net);
2214 }
2215
2216 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2217 {
2218         union iwreq_data evt;
2219
2220         netif_carrier_off(usbdev->net);
2221
2222         evt.data.flags = 0;
2223         evt.data.length = 0;
2224         memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2225         wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2226 }
2227
2228 static void rndis_wlan_worker(struct work_struct *work)
2229 {
2230         struct rndis_wlan_private *priv =
2231                 container_of(work, struct rndis_wlan_private, work);
2232         struct usbnet *usbdev = priv->usbdev;
2233
2234         if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2235                 rndis_wlan_do_link_up_work(usbdev);
2236
2237         if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2238                 rndis_wlan_do_link_down_work(usbdev);
2239
2240         if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2241                 set_multicast_list(usbdev);
2242 }
2243
2244 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2245 {
2246         struct usbnet *usbdev = netdev_priv(dev);
2247         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2248
2249         if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2250                 return;
2251
2252         set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2253         queue_work(priv->workqueue, &priv->work);
2254 }
2255
2256 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2257                                 struct ndis_80211_status_indication *indication,
2258                                 int len)
2259 {
2260         u8 *buf;
2261         const char *type;
2262         int flags, buflen, key_id;
2263         bool pairwise_error, group_error;
2264         struct ndis_80211_auth_request *auth_req;
2265         enum nl80211_key_type key_type;
2266
2267         /* must have at least one array entry */
2268         if (len < offsetof(struct ndis_80211_status_indication, u) +
2269                                 sizeof(struct ndis_80211_auth_request)) {
2270                 devinfo(usbdev, "authentication indication: "
2271                                 "too short message (%i)", len);
2272                 return;
2273         }
2274
2275         buf = (void *)&indication->u.auth_request[0];
2276         buflen = len - offsetof(struct ndis_80211_status_indication, u);
2277
2278         while (buflen >= sizeof(*auth_req)) {
2279                 auth_req = (void *)buf;
2280                 type = "unknown";
2281                 flags = le32_to_cpu(auth_req->flags);
2282                 pairwise_error = false;
2283                 group_error = false;
2284
2285                 if (flags & 0x1)
2286                         type = "reauth request";
2287                 if (flags & 0x2)
2288                         type = "key update request";
2289                 if (flags & 0x6) {
2290                         pairwise_error = true;
2291                         type = "pairwise_error";
2292                 }
2293                 if (flags & 0xe) {
2294                         group_error = true;
2295                         type = "group_error";
2296                 }
2297
2298                 devinfo(usbdev, "authentication indication: %s (0x%08x)", type,
2299                                 le32_to_cpu(auth_req->flags));
2300
2301                 if (pairwise_error) {
2302                         key_type = NL80211_KEYTYPE_PAIRWISE;
2303                         key_id = -1;
2304
2305                         cfg80211_michael_mic_failure(usbdev->net,
2306                                                         auth_req->bssid,
2307                                                         key_type, key_id, NULL,
2308                                                         GFP_KERNEL);
2309                 }
2310
2311                 if (group_error) {
2312                         key_type = NL80211_KEYTYPE_GROUP;
2313                         key_id = -1;
2314
2315                         cfg80211_michael_mic_failure(usbdev->net,
2316                                                         auth_req->bssid,
2317                                                         key_type, key_id, NULL,
2318                                                         GFP_KERNEL);
2319                 }
2320
2321                 buflen -= le32_to_cpu(auth_req->length);
2322                 buf += le32_to_cpu(auth_req->length);
2323         }
2324 }
2325
2326 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2327                                 struct ndis_80211_status_indication *indication,
2328                                 int len)
2329 {
2330         struct ndis_80211_pmkid_cand_list *cand_list;
2331         int list_len, expected_len, i;
2332
2333         if (len < offsetof(struct ndis_80211_status_indication, u) +
2334                                 sizeof(struct ndis_80211_pmkid_cand_list)) {
2335                 devinfo(usbdev, "pmkid candidate list indication: "
2336                                 "too short message (%i)", len);
2337                 return;
2338         }
2339
2340         list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2341                         sizeof(struct ndis_80211_pmkid_candidate);
2342         expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2343                         offsetof(struct ndis_80211_status_indication, u);
2344
2345         if (len < expected_len) {
2346                 devinfo(usbdev, "pmkid candidate list indication: "
2347                                 "list larger than buffer (%i < %i)",
2348                                 len, expected_len);
2349                 return;
2350         }
2351
2352         cand_list = &indication->u.cand_list;
2353
2354         devinfo(usbdev, "pmkid candidate list indication: "
2355                         "version %i, candidates %i",
2356                         le32_to_cpu(cand_list->version),
2357                         le32_to_cpu(cand_list->num_candidates));
2358
2359         if (le32_to_cpu(cand_list->version) != 1)
2360                 return;
2361
2362         for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2363                 struct ndis_80211_pmkid_candidate *cand =
2364                                                 &cand_list->candidate_list[i];
2365
2366                 devdbg(usbdev, "cand[%i]: flags: 0x%08x, bssid: %pM",
2367                                 i, le32_to_cpu(cand->flags), cand->bssid);
2368
2369 #if 0
2370                 struct iw_pmkid_cand pcand;
2371                 union iwreq_data wrqu;
2372
2373                 memset(&pcand, 0, sizeof(pcand));
2374                 if (le32_to_cpu(cand->flags) & 0x01)
2375                         pcand.flags |= IW_PMKID_CAND_PREAUTH;
2376                 pcand.index = i;
2377                 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2378
2379                 memset(&wrqu, 0, sizeof(wrqu));
2380                 wrqu.data.length = sizeof(pcand);
2381                 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2382                                                                 (u8 *)&pcand);
2383 #endif
2384         }
2385 }
2386
2387 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2388                         struct rndis_indicate *msg, int buflen)
2389 {
2390         struct ndis_80211_status_indication *indication;
2391         int len, offset;
2392
2393         offset = offsetof(struct rndis_indicate, status) +
2394                         le32_to_cpu(msg->offset);
2395         len = le32_to_cpu(msg->length);
2396
2397         if (len < 8) {
2398                 devinfo(usbdev, "media specific indication, "
2399                                 "ignore too short message (%i < 8)", len);
2400                 return;
2401         }
2402
2403         if (offset + len > buflen) {
2404                 devinfo(usbdev, "media specific indication, "
2405                                 "too large to fit to buffer (%i > %i)",
2406                                 offset + len, buflen);
2407                 return;
2408         }
2409
2410         indication = (void *)((u8 *)msg + offset);
2411
2412         switch (le32_to_cpu(indication->status_type)) {
2413         case NDIS_80211_STATUSTYPE_RADIOSTATE:
2414                 devinfo(usbdev, "radio state indication: %i",
2415                         le32_to_cpu(indication->u.radio_status));
2416                 return;
2417
2418         case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
2419                 devinfo(usbdev, "media stream mode indication: %i",
2420                         le32_to_cpu(indication->u.media_stream_mode));
2421                 return;
2422
2423         case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2424                 rndis_wlan_auth_indication(usbdev, indication, len);
2425                 return;
2426
2427         case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2428                 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2429                 return;
2430
2431         default:
2432                 devinfo(usbdev, "media specific indication: "
2433                                 "unknown status type 0x%08x",
2434                                 le32_to_cpu(indication->status_type));
2435         }
2436 }
2437
2438 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
2439 {
2440         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2441         struct rndis_indicate *msg = ind;
2442
2443         switch (msg->status) {
2444         case RNDIS_STATUS_MEDIA_CONNECT:
2445                 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2446                         /* OID_802_11_ADD_KEY causes sometimes extra
2447                          * "media connect" indications which confuses driver
2448                          * and userspace to think that device is
2449                          * roaming/reassociating when it isn't.
2450                          */
2451                         devdbg(usbdev, "ignored OID_802_11_ADD_KEY triggered "
2452                                         "'media connect'");
2453                         return;
2454                 }
2455
2456                 usbnet_pause_rx(usbdev);
2457
2458                 devinfo(usbdev, "media connect");
2459
2460                 /* queue work to avoid recursive calls into rndis_command */
2461                 set_bit(WORK_LINK_UP, &priv->work_pending);
2462                 queue_work(priv->workqueue, &priv->work);
2463                 break;
2464
2465         case RNDIS_STATUS_MEDIA_DISCONNECT:
2466                 devinfo(usbdev, "media disconnect");
2467
2468                 /* queue work to avoid recursive calls into rndis_command */
2469                 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2470                 queue_work(priv->workqueue, &priv->work);
2471                 break;
2472
2473         case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2474                 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2475                 break;
2476
2477         default:
2478                 devinfo(usbdev, "indication: 0x%08x",
2479                                 le32_to_cpu(msg->status));
2480                 break;
2481         }
2482 }
2483
2484 static int rndis_wlan_get_caps(struct usbnet *usbdev)
2485 {
2486         struct {
2487                 __le32  num_items;
2488                 __le32  items[8];
2489         } networks_supported;
2490         int len, retval, i, n;
2491         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2492
2493         /* determine supported modes */
2494         len = sizeof(networks_supported);
2495         retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2496                                                 &networks_supported, &len);
2497         if (retval >= 0) {
2498                 n = le32_to_cpu(networks_supported.num_items);
2499                 if (n > 8)
2500                         n = 8;
2501                 for (i = 0; i < n; i++) {
2502                         switch (le32_to_cpu(networks_supported.items[i])) {
2503                         case NDIS_80211_TYPE_FREQ_HOP:
2504                         case NDIS_80211_TYPE_DIRECT_SEQ:
2505                                 priv->caps |= CAP_MODE_80211B;
2506                                 break;
2507                         case NDIS_80211_TYPE_OFDM_A:
2508                                 priv->caps |= CAP_MODE_80211A;
2509                                 break;
2510                         case NDIS_80211_TYPE_OFDM_G:
2511                                 priv->caps |= CAP_MODE_80211G;
2512                                 break;
2513                         }
2514                 }
2515         }
2516
2517         return retval;
2518 }
2519
2520 #define DEVICE_POLLER_JIFFIES (HZ)
2521 static void rndis_device_poller(struct work_struct *work)
2522 {
2523         struct rndis_wlan_private *priv =
2524                 container_of(work, struct rndis_wlan_private,
2525                                                         dev_poller_work.work);
2526         struct usbnet *usbdev = priv->usbdev;
2527         __le32 rssi, tmp;
2528         int len, ret, j;
2529         int update_jiffies = DEVICE_POLLER_JIFFIES;
2530         void *buf;
2531
2532         /* Only check/do workaround when connected. Calling is_associated()
2533          * also polls device with rndis_command() and catches for media link
2534          * indications.
2535          */
2536         if (!is_associated(usbdev))
2537                 goto end;
2538
2539         len = sizeof(rssi);
2540         ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2541         if (ret == 0)
2542                 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
2543
2544         devdbg(usbdev, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d",
2545                 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
2546
2547         /* Workaround transfer stalls on poor quality links.
2548          * TODO: find right way to fix these stalls (as stalls do not happen
2549          * with ndiswrapper/windows driver). */
2550         if (priv->last_qual <= 25) {
2551                 /* Decrease stats worker interval to catch stalls.
2552                  * faster. Faster than 400-500ms causes packet loss,
2553                  * Slower doesn't catch stalls fast enough.
2554                  */
2555                 j = msecs_to_jiffies(priv->param_workaround_interval);
2556                 if (j > DEVICE_POLLER_JIFFIES)
2557                         j = DEVICE_POLLER_JIFFIES;
2558                 else if (j <= 0)
2559                         j = 1;
2560                 update_jiffies = j;
2561
2562                 /* Send scan OID. Use of both OIDs is required to get device
2563                  * working.
2564                  */
2565                 tmp = cpu_to_le32(1);
2566                 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2567                                                                 sizeof(tmp));
2568
2569                 len = CONTROL_BUFFER_SIZE;
2570                 buf = kmalloc(len, GFP_KERNEL);
2571                 if (!buf)
2572                         goto end;
2573
2574                 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2575                 kfree(buf);
2576         }
2577
2578 end:
2579         if (update_jiffies >= HZ)
2580                 update_jiffies = round_jiffies_relative(update_jiffies);
2581         else {
2582                 j = round_jiffies_relative(update_jiffies);
2583                 if (abs(j - update_jiffies) <= 10)
2584                         update_jiffies = j;
2585         }
2586
2587         queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
2588                                                                 update_jiffies);
2589 }
2590
2591 /*
2592  * driver/device initialization
2593  */
2594 static int bcm4320a_early_init(struct usbnet *usbdev)
2595 {
2596         /* bcm4320a doesn't handle configuration parameters well. Try
2597          * set any and you get partially zeroed mac and broken device.
2598          */
2599
2600         return 0;
2601 }
2602
2603 static int bcm4320b_early_init(struct usbnet *usbdev)
2604 {
2605         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2606         char buf[8];
2607
2608         /* Early initialization settings, setting these won't have effect
2609          * if called after generic_rndis_bind().
2610          */
2611
2612         priv->param_country[0] = modparam_country[0];
2613         priv->param_country[1] = modparam_country[1];
2614         priv->param_country[2] = 0;
2615         priv->param_frameburst   = modparam_frameburst;
2616         priv->param_afterburner  = modparam_afterburner;
2617         priv->param_power_save   = modparam_power_save;
2618         priv->param_power_output = modparam_power_output;
2619         priv->param_roamtrigger  = modparam_roamtrigger;
2620         priv->param_roamdelta    = modparam_roamdelta;
2621
2622         priv->param_country[0] = toupper(priv->param_country[0]);
2623         priv->param_country[1] = toupper(priv->param_country[1]);
2624         /* doesn't support EU as country code, use FI instead */
2625         if (!strcmp(priv->param_country, "EU"))
2626                 strcpy(priv->param_country, "FI");
2627
2628         if (priv->param_power_save < 0)
2629                 priv->param_power_save = 0;
2630         else if (priv->param_power_save > 2)
2631                 priv->param_power_save = 2;
2632
2633         if (priv->param_power_output < 0)
2634                 priv->param_power_output = 0;
2635         else if (priv->param_power_output > 3)
2636                 priv->param_power_output = 3;
2637
2638         if (priv->param_roamtrigger < -80)
2639                 priv->param_roamtrigger = -80;
2640         else if (priv->param_roamtrigger > -60)
2641                 priv->param_roamtrigger = -60;
2642
2643         if (priv->param_roamdelta < 0)
2644                 priv->param_roamdelta = 0;
2645         else if (priv->param_roamdelta > 2)
2646                 priv->param_roamdelta = 2;
2647
2648         if (modparam_workaround_interval < 0)
2649                 priv->param_workaround_interval = 500;
2650         else
2651                 priv->param_workaround_interval = modparam_workaround_interval;
2652
2653         rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2654         rndis_set_config_parameter_str(usbdev, "FrameBursting",
2655                                         priv->param_frameburst ? "1" : "0");
2656         rndis_set_config_parameter_str(usbdev, "Afterburner",
2657                                         priv->param_afterburner ? "1" : "0");
2658         sprintf(buf, "%d", priv->param_power_save);
2659         rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2660         sprintf(buf, "%d", priv->param_power_output);
2661         rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2662         sprintf(buf, "%d", priv->param_roamtrigger);
2663         rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2664         sprintf(buf, "%d", priv->param_roamdelta);
2665         rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2666
2667         return 0;
2668 }
2669
2670 /* same as rndis_netdev_ops but with local multicast handler */
2671 static const struct net_device_ops rndis_wlan_netdev_ops = {
2672         .ndo_open               = usbnet_open,
2673         .ndo_stop               = usbnet_stop,
2674         .ndo_start_xmit         = usbnet_start_xmit,
2675         .ndo_tx_timeout         = usbnet_tx_timeout,
2676         .ndo_set_mac_address    = eth_mac_addr,
2677         .ndo_validate_addr      = eth_validate_addr,
2678         .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
2679 };
2680
2681 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
2682 {
2683         struct wiphy *wiphy;
2684         struct rndis_wlan_private *priv;
2685         int retval, len;
2686         __le32 tmp;
2687
2688         /* allocate wiphy and rndis private data
2689          * NOTE: We only support a single virtual interface, so wiphy
2690          * and wireless_dev are somewhat synonymous for this device.
2691          */
2692         wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
2693         if (!wiphy)
2694                 return -ENOMEM;
2695
2696         priv = wiphy_priv(wiphy);
2697         usbdev->net->ieee80211_ptr = &priv->wdev;
2698         priv->wdev.wiphy = wiphy;
2699         priv->wdev.iftype = NL80211_IFTYPE_STATION;
2700
2701         /* These have to be initialized before calling generic_rndis_bind().
2702          * Otherwise we'll be in big trouble in rndis_wlan_early_init().
2703          */
2704         usbdev->driver_priv = priv;
2705         priv->usbdev = usbdev;
2706
2707         mutex_init(&priv->command_lock);
2708
2709         /* because rndis_command() sleeps we need to use workqueue */
2710         priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2711         INIT_WORK(&priv->work, rndis_wlan_worker);
2712         INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
2713         INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2714
2715         /* try bind rndis_host */
2716         retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2717         if (retval < 0)
2718                 goto fail;
2719
2720         /* generic_rndis_bind set packet filter to multicast_all+
2721          * promisc mode which doesn't work well for our devices (device
2722          * picks up rssi to closest station instead of to access point).
2723          *
2724          * rndis_host wants to avoid all OID as much as possible
2725          * so do promisc/multicast handling in rndis_wlan.
2726          */
2727         usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
2728
2729         tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2730         retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2731                                                                 sizeof(tmp));
2732
2733         len = sizeof(tmp);
2734         retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2735                                                                 &len);
2736         priv->multicast_size = le32_to_cpu(tmp);
2737         if (retval < 0 || priv->multicast_size < 0)
2738                 priv->multicast_size = 0;
2739         if (priv->multicast_size > 0)
2740                 usbdev->net->flags |= IFF_MULTICAST;
2741         else
2742                 usbdev->net->flags &= ~IFF_MULTICAST;
2743
2744         /* fill-out wiphy structure and register w/ cfg80211 */
2745         memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2746         wiphy->privid = rndis_wiphy_privid;
2747         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2748                                         | BIT(NL80211_IFTYPE_ADHOC);
2749         wiphy->max_scan_ssids = 1;
2750
2751         /* TODO: fill-out band/encr information based on priv->caps */
2752         rndis_wlan_get_caps(usbdev);
2753
2754         memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2755         memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2756         priv->band.channels = priv->channels;
2757         priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2758         priv->band.bitrates = priv->rates;
2759         priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2760         wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2761         wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2762
2763         memcpy(priv->cipher_suites, rndis_cipher_suites,
2764                                                 sizeof(rndis_cipher_suites));
2765         wiphy->cipher_suites = priv->cipher_suites;
2766         wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
2767
2768         set_wiphy_dev(wiphy, &usbdev->udev->dev);
2769
2770         if (wiphy_register(wiphy)) {
2771                 retval = -ENODEV;
2772                 goto fail;
2773         }
2774
2775         set_default_iw_params(usbdev);
2776
2777         /* set default rts/frag */
2778         rndis_set_wiphy_params(wiphy,
2779                         WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
2780
2781         /* turn radio on */
2782         priv->radio_on = true;
2783         disassociate(usbdev, true);
2784         netif_carrier_off(usbdev->net);
2785
2786         return 0;
2787
2788 fail:
2789         cancel_delayed_work_sync(&priv->dev_poller_work);
2790         cancel_delayed_work_sync(&priv->scan_work);
2791         cancel_work_sync(&priv->work);
2792         flush_workqueue(priv->workqueue);
2793         destroy_workqueue(priv->workqueue);
2794
2795         wiphy_free(wiphy);
2796         return retval;
2797 }
2798
2799 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2800 {
2801         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2802
2803         /* turn radio off */
2804         disassociate(usbdev, false);
2805
2806         cancel_delayed_work_sync(&priv->dev_poller_work);
2807         cancel_delayed_work_sync(&priv->scan_work);
2808         cancel_work_sync(&priv->work);
2809         flush_workqueue(priv->workqueue);
2810         destroy_workqueue(priv->workqueue);
2811
2812         if (priv && priv->wpa_ie_len)
2813                 kfree(priv->wpa_ie);
2814
2815         rndis_unbind(usbdev, intf);
2816
2817         wiphy_unregister(priv->wdev.wiphy);
2818         wiphy_free(priv->wdev.wiphy);
2819 }
2820
2821 static int rndis_wlan_reset(struct usbnet *usbdev)
2822 {
2823         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2824         int retval;
2825
2826         devdbg(usbdev, "rndis_wlan_reset");
2827
2828         retval = rndis_reset(usbdev);
2829         if (retval)
2830                 devwarn(usbdev, "rndis_reset() failed: %d", retval);
2831
2832         /* rndis_reset cleared multicast list, so restore here.
2833            (set_multicast_list() also turns on current packet filter) */
2834         set_multicast_list(usbdev);
2835
2836         queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
2837                 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
2838
2839         return deauthenticate(usbdev);
2840 }
2841
2842 static int rndis_wlan_stop(struct usbnet *usbdev)
2843 {
2844         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2845         int retval;
2846         __le32 filter;
2847
2848         devdbg(usbdev, "rndis_wlan_stop");
2849
2850         retval = disassociate(usbdev, false);
2851
2852         priv->work_pending = 0;
2853         cancel_delayed_work_sync(&priv->dev_poller_work);
2854         cancel_delayed_work_sync(&priv->scan_work);
2855         cancel_work_sync(&priv->work);
2856         flush_workqueue(priv->workqueue);
2857
2858         if (priv->scan_request) {
2859                 cfg80211_scan_done(priv->scan_request, true);
2860                 priv->scan_request = NULL;
2861         }
2862
2863         /* Set current packet filter zero to block receiving data packets from
2864            device. */
2865         filter = 0;
2866         rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
2867                                                                 sizeof(filter));
2868
2869         return retval;
2870 }
2871
2872 static const struct driver_info bcm4320b_info = {
2873         .description =  "Wireless RNDIS device, BCM4320b based",
2874         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2875                                 FLAG_AVOID_UNLINK_URBS,
2876         .bind =         rndis_wlan_bind,
2877         .unbind =       rndis_wlan_unbind,
2878         .status =       rndis_status,
2879         .rx_fixup =     rndis_rx_fixup,
2880         .tx_fixup =     rndis_tx_fixup,
2881         .reset =        rndis_wlan_reset,
2882         .stop =         rndis_wlan_stop,
2883         .early_init =   bcm4320b_early_init,
2884         .indication =   rndis_wlan_indication,
2885 };
2886
2887 static const struct driver_info bcm4320a_info = {
2888         .description =  "Wireless RNDIS device, BCM4320a based",
2889         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2890                                 FLAG_AVOID_UNLINK_URBS,
2891         .bind =         rndis_wlan_bind,
2892         .unbind =       rndis_wlan_unbind,
2893         .status =       rndis_status,
2894         .rx_fixup =     rndis_rx_fixup,
2895         .tx_fixup =     rndis_tx_fixup,
2896         .reset =        rndis_wlan_reset,
2897         .stop =         rndis_wlan_stop,
2898         .early_init =   bcm4320a_early_init,
2899         .indication =   rndis_wlan_indication,
2900 };
2901
2902 static const struct driver_info rndis_wlan_info = {
2903         .description =  "Wireless RNDIS device",
2904         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2905                                 FLAG_AVOID_UNLINK_URBS,
2906         .bind =         rndis_wlan_bind,
2907         .unbind =       rndis_wlan_unbind,
2908         .status =       rndis_status,
2909         .rx_fixup =     rndis_rx_fixup,
2910         .tx_fixup =     rndis_tx_fixup,
2911         .reset =        rndis_wlan_reset,
2912         .stop =         rndis_wlan_stop,
2913         .early_init =   bcm4320a_early_init,
2914         .indication =   rndis_wlan_indication,
2915 };
2916
2917 /*-------------------------------------------------------------------------*/
2918
2919 static const struct usb_device_id products [] = {
2920 #define RNDIS_MASTER_INTERFACE \
2921         .bInterfaceClass        = USB_CLASS_COMM, \
2922         .bInterfaceSubClass     = 2 /* ACM */, \
2923         .bInterfaceProtocol     = 0x0ff
2924
2925 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2926  * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2927  */
2928 {
2929         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2930                           | USB_DEVICE_ID_MATCH_DEVICE,
2931         .idVendor               = 0x0411,
2932         .idProduct              = 0x00bc,       /* Buffalo WLI-U2-KG125S */
2933         RNDIS_MASTER_INTERFACE,
2934         .driver_info            = (unsigned long) &bcm4320b_info,
2935 }, {
2936         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2937                           | USB_DEVICE_ID_MATCH_DEVICE,
2938         .idVendor               = 0x0baf,
2939         .idProduct              = 0x011b,       /* U.S. Robotics USR5421 */
2940         RNDIS_MASTER_INTERFACE,
2941         .driver_info            = (unsigned long) &bcm4320b_info,
2942 }, {
2943         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2944                           | USB_DEVICE_ID_MATCH_DEVICE,
2945         .idVendor               = 0x050d,
2946         .idProduct              = 0x011b,       /* Belkin F5D7051 */
2947         RNDIS_MASTER_INTERFACE,
2948         .driver_info            = (unsigned long) &bcm4320b_info,
2949 }, {
2950         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2951                           | USB_DEVICE_ID_MATCH_DEVICE,
2952         .idVendor               = 0x1799,       /* Belkin has two vendor ids */
2953         .idProduct              = 0x011b,       /* Belkin F5D7051 */
2954         RNDIS_MASTER_INTERFACE,
2955         .driver_info            = (unsigned long) &bcm4320b_info,
2956 }, {
2957         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2958                           | USB_DEVICE_ID_MATCH_DEVICE,
2959         .idVendor               = 0x13b1,
2960         .idProduct              = 0x0014,       /* Linksys WUSB54GSv2 */
2961         RNDIS_MASTER_INTERFACE,
2962         .driver_info            = (unsigned long) &bcm4320b_info,
2963 }, {
2964         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2965                           | USB_DEVICE_ID_MATCH_DEVICE,
2966         .idVendor               = 0x13b1,
2967         .idProduct              = 0x0026,       /* Linksys WUSB54GSC */
2968         RNDIS_MASTER_INTERFACE,
2969         .driver_info            = (unsigned long) &bcm4320b_info,
2970 }, {
2971         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2972                           | USB_DEVICE_ID_MATCH_DEVICE,
2973         .idVendor               = 0x0b05,
2974         .idProduct              = 0x1717,       /* Asus WL169gE */
2975         RNDIS_MASTER_INTERFACE,
2976         .driver_info            = (unsigned long) &bcm4320b_info,
2977 }, {
2978         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2979                           | USB_DEVICE_ID_MATCH_DEVICE,
2980         .idVendor               = 0x0a5c,
2981         .idProduct              = 0xd11b,       /* Eminent EM4045 */
2982         RNDIS_MASTER_INTERFACE,
2983         .driver_info            = (unsigned long) &bcm4320b_info,
2984 }, {
2985         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2986                           | USB_DEVICE_ID_MATCH_DEVICE,
2987         .idVendor               = 0x1690,
2988         .idProduct              = 0x0715,       /* BT Voyager 1055 */
2989         RNDIS_MASTER_INTERFACE,
2990         .driver_info            = (unsigned long) &bcm4320b_info,
2991 },
2992 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2993  * parameters available, hardware probably contain older firmware version with
2994  * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2995  */
2996 {
2997         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
2998                           | USB_DEVICE_ID_MATCH_DEVICE,
2999         .idVendor               = 0x13b1,
3000         .idProduct              = 0x000e,       /* Linksys WUSB54GSv1 */
3001         RNDIS_MASTER_INTERFACE,
3002         .driver_info            = (unsigned long) &bcm4320a_info,
3003 }, {
3004         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3005                           | USB_DEVICE_ID_MATCH_DEVICE,
3006         .idVendor               = 0x0baf,
3007         .idProduct              = 0x0111,       /* U.S. Robotics USR5420 */
3008         RNDIS_MASTER_INTERFACE,
3009         .driver_info            = (unsigned long) &bcm4320a_info,
3010 }, {
3011         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3012                           | USB_DEVICE_ID_MATCH_DEVICE,
3013         .idVendor               = 0x0411,
3014         .idProduct              = 0x004b,       /* BUFFALO WLI-USB-G54 */
3015         RNDIS_MASTER_INTERFACE,
3016         .driver_info            = (unsigned long) &bcm4320a_info,
3017 },
3018 /* Generic Wireless RNDIS devices that we don't have exact
3019  * idVendor/idProduct/chip yet.
3020  */
3021 {
3022         /* RNDIS is MSFT's un-official variant of CDC ACM */
3023         USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3024         .driver_info = (unsigned long) &rndis_wlan_info,
3025 }, {
3026         /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3027         USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3028         .driver_info = (unsigned long) &rndis_wlan_info,
3029 },
3030         { },            // END
3031 };
3032 MODULE_DEVICE_TABLE(usb, products);
3033
3034 static struct usb_driver rndis_wlan_driver = {
3035         .name =         "rndis_wlan",
3036         .id_table =     products,
3037         .probe =        usbnet_probe,
3038         .disconnect =   usbnet_disconnect,
3039         .suspend =      usbnet_suspend,
3040         .resume =       usbnet_resume,
3041 };
3042
3043 static int __init rndis_wlan_init(void)
3044 {
3045         return usb_register(&rndis_wlan_driver);
3046 }
3047 module_init(rndis_wlan_init);
3048
3049 static void __exit rndis_wlan_exit(void)
3050 {
3051         usb_deregister(&rndis_wlan_driver);
3052 }
3053 module_exit(rndis_wlan_exit);
3054
3055 MODULE_AUTHOR("Bjorge Dijkstra");
3056 MODULE_AUTHOR("Jussi Kivilinna");
3057 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3058 MODULE_LICENSE("GPL");
3059