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

   1 /*
   2  * Driver for RNDIS based wireless USB devices.
   3  *
   4  * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
   5  * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  *  Portions of this file are based on NDISwrapper project,
  22  *  Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
  23  *  http://ndiswrapper.sourceforge.net/
  24  */
  25
  26 // #define      DEBUG                   // error path messages, extra info
  27 // #define      VERBOSE                 // more; success messages
  28
  29 #include <linux/module.h>
  30 #include <linux/init.h>
  31 #include <linux/netdevice.h>
  32 #include <linux/etherdevice.h>
  33 #include <linux/ethtool.h>
  34 #include <linux/workqueue.h>
  35 #include <linux/mutex.h>
  36 #include <linux/mii.h>
  37 #include <linux/usb.h>
  38 #include <linux/usb/cdc.h>
  39 #include <linux/wireless.h>
  40 #include <linux/ieee80211.h>
  41 #include <linux/if_arp.h>
  42 #include <linux/ctype.h>
  43 #include <linux/spinlock.h>
  44 #include <linux/slab.h>
  45 #include <net/iw_handler.h>
  46 #include <net/cfg80211.h>
  47 #include <linux/usb/usbnet.h>
  48 #include <linux/usb/rndis_host.h>
  49
  50
  51 /* NOTE: All these are settings for Broadcom chipset */
  52 static char modparam_country[4] = "EU";
  53 module_param_string(country, modparam_country, 4, 0444);
  54 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
  55
  56 static int modparam_frameburst = 1;
  57 module_param_named(frameburst, modparam_frameburst, int, 0444);
  58 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
  59
  60 static int modparam_afterburner = 0;
  61 module_param_named(afterburner, modparam_afterburner, int, 0444);
  62 MODULE_PARM_DESC(afterburner,
  63         "enable afterburner aka '125 High Speed Mode' (default: off)");
  64
  65 static int modparam_power_save = 0;
  66 module_param_named(power_save, modparam_power_save, int, 0444);
  67 MODULE_PARM_DESC(power_save,
  68         "set power save mode: 0=off, 1=on, 2=fast (default: off)");
  69
  70 static int modparam_power_output = 3;
  71 module_param_named(power_output, modparam_power_output, int, 0444);
  72 MODULE_PARM_DESC(power_output,
  73         "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
  74
  75 static int modparam_roamtrigger = -70;
  76 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
  77 MODULE_PARM_DESC(roamtrigger,
  78         "set roaming dBm trigger: -80=optimize for distance, "
  79                                 "-60=bandwidth (default: -70)");
  80
  81 static int modparam_roamdelta = 1;
  82 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
  83 MODULE_PARM_DESC(roamdelta,
  84         "set roaming tendency: 0=aggressive, 1=moderate, "
  85                                 "2=conservative (default: moderate)");
  86
  87 static int modparam_workaround_interval;
  88 module_param_named(workaround_interval, modparam_workaround_interval,
  89                                                         int, 0444);
  90 MODULE_PARM_DESC(workaround_interval,
  91         "set stall workaround interval in msecs (0=disabled) (default: 0)");
  92
  93
  94 /* various RNDIS OID defs */
  95 #define OID_GEN_LINK_SPEED                      cpu_to_le32(0x00010107)
  96 #define OID_GEN_RNDIS_CONFIG_PARAMETER          cpu_to_le32(0x0001021b)
  97
  98 #define OID_GEN_XMIT_OK                         cpu_to_le32(0x00020101)
  99 #define OID_GEN_RCV_OK                          cpu_to_le32(0x00020102)
 100 #define OID_GEN_XMIT_ERROR                      cpu_to_le32(0x00020103)
 101 #define OID_GEN_RCV_ERROR                       cpu_to_le32(0x00020104)
 102 #define OID_GEN_RCV_NO_BUFFER                   cpu_to_le32(0x00020105)
 103
 104 #define OID_802_3_CURRENT_ADDRESS               cpu_to_le32(0x01010102)
 105 #define OID_802_3_MULTICAST_LIST                cpu_to_le32(0x01010103)
 106 #define OID_802_3_MAXIMUM_LIST_SIZE             cpu_to_le32(0x01010104)
 107
 108 #define OID_802_11_BSSID                        cpu_to_le32(0x0d010101)
 109 #define OID_802_11_SSID                         cpu_to_le32(0x0d010102)
 110 #define OID_802_11_INFRASTRUCTURE_MODE          cpu_to_le32(0x0d010108)
 111 #define OID_802_11_ADD_WEP                      cpu_to_le32(0x0d010113)
 112 #define OID_802_11_REMOVE_WEP                   cpu_to_le32(0x0d010114)
 113 #define OID_802_11_DISASSOCIATE                 cpu_to_le32(0x0d010115)
 114 #define OID_802_11_AUTHENTICATION_MODE          cpu_to_le32(0x0d010118)
 115 #define OID_802_11_PRIVACY_FILTER               cpu_to_le32(0x0d010119)
 116 #define OID_802_11_BSSID_LIST_SCAN              cpu_to_le32(0x0d01011a)
 117 #define OID_802_11_ENCRYPTION_STATUS            cpu_to_le32(0x0d01011b)
 118 #define OID_802_11_ADD_KEY                      cpu_to_le32(0x0d01011d)
 119 #define OID_802_11_REMOVE_KEY                   cpu_to_le32(0x0d01011e)
 120 #define OID_802_11_ASSOCIATION_INFORMATION      cpu_to_le32(0x0d01011f)
 121 #define OID_802_11_CAPABILITY                   cpu_to_le32(0x0d010122)
 122 #define OID_802_11_PMKID                        cpu_to_le32(0x0d010123)
 123 #define OID_802_11_NETWORK_TYPES_SUPPORTED      cpu_to_le32(0x0d010203)
 124 #define OID_802_11_NETWORK_TYPE_IN_USE          cpu_to_le32(0x0d010204)
 125 #define OID_802_11_TX_POWER_LEVEL               cpu_to_le32(0x0d010205)
 126 #define OID_802_11_RSSI                         cpu_to_le32(0x0d010206)
 127 #define OID_802_11_RSSI_TRIGGER                 cpu_to_le32(0x0d010207)
 128 #define OID_802_11_FRAGMENTATION_THRESHOLD      cpu_to_le32(0x0d010209)
 129 #define OID_802_11_RTS_THRESHOLD                cpu_to_le32(0x0d01020a)
 130 #define OID_802_11_SUPPORTED_RATES              cpu_to_le32(0x0d01020e)
 131 #define OID_802_11_CONFIGURATION                cpu_to_le32(0x0d010211)
 132 #define OID_802_11_BSSID_LIST                   cpu_to_le32(0x0d010217)
 133
 134
 135 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
 136 #define WL_NOISE        -96     /* typical noise level in dBm */
 137 #define WL_SIGMAX       -32     /* typical maximum signal level in dBm */
 138
 139
 140 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
 141  * based on wireless rndis) has default txpower of 13dBm.
 142  * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
 143  *  100% : 20 mW ~ 13dBm
 144  *   75% : 15 mW ~ 12dBm
 145  *   50% : 10 mW ~ 10dBm
 146  *   25% :  5 mW ~  7dBm
 147  */
 148 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
 149 #define BCM4320_DEFAULT_TXPOWER_DBM_75  12
 150 #define BCM4320_DEFAULT_TXPOWER_DBM_50  10
 151 #define BCM4320_DEFAULT_TXPOWER_DBM_25  7
 152
 153
 154 /* codes for "status" field of completion messages */
 155 #define RNDIS_STATUS_ADAPTER_NOT_READY          cpu_to_le32(0xc0010011)
 156 #define RNDIS_STATUS_ADAPTER_NOT_OPEN           cpu_to_le32(0xc0010012)
 157
 158
 159 /* Known device types */
 160 #define RNDIS_UNKNOWN   0
 161 #define RNDIS_BCM4320A  1
 162 #define RNDIS_BCM4320B  2
 163
 164
 165 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
 166  * slightly modified for datatype endianess, etc
 167  */
 168 #define NDIS_802_11_LENGTH_SSID 32
 169 #define NDIS_802_11_LENGTH_RATES 8
 170 #define NDIS_802_11_LENGTH_RATES_EX 16
 171
 172 enum ndis_80211_net_type {
 173         NDIS_80211_TYPE_FREQ_HOP,
 174         NDIS_80211_TYPE_DIRECT_SEQ,
 175         NDIS_80211_TYPE_OFDM_A,
 176         NDIS_80211_TYPE_OFDM_G
 177 };
 178
 179 enum ndis_80211_net_infra {
 180         NDIS_80211_INFRA_ADHOC,
 181         NDIS_80211_INFRA_INFRA,
 182         NDIS_80211_INFRA_AUTO_UNKNOWN
 183 };
 184
 185 enum ndis_80211_auth_mode {
 186         NDIS_80211_AUTH_OPEN,
 187         NDIS_80211_AUTH_SHARED,
 188         NDIS_80211_AUTH_AUTO_SWITCH,
 189         NDIS_80211_AUTH_WPA,
 190         NDIS_80211_AUTH_WPA_PSK,
 191         NDIS_80211_AUTH_WPA_NONE,
 192         NDIS_80211_AUTH_WPA2,
 193         NDIS_80211_AUTH_WPA2_PSK
 194 };
 195
 196 enum ndis_80211_encr_status {
 197         NDIS_80211_ENCR_WEP_ENABLED,
 198         NDIS_80211_ENCR_DISABLED,
 199         NDIS_80211_ENCR_WEP_KEY_ABSENT,
 200         NDIS_80211_ENCR_NOT_SUPPORTED,
 201         NDIS_80211_ENCR_TKIP_ENABLED,
 202         NDIS_80211_ENCR_TKIP_KEY_ABSENT,
 203         NDIS_80211_ENCR_CCMP_ENABLED,
 204         NDIS_80211_ENCR_CCMP_KEY_ABSENT
 205 };
 206
 207 enum ndis_80211_priv_filter {
 208         NDIS_80211_PRIV_ACCEPT_ALL,
 209         NDIS_80211_PRIV_8021X_WEP
 210 };
 211
 212 enum ndis_80211_status_type {
 213         NDIS_80211_STATUSTYPE_AUTHENTICATION,
 214         NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
 215         NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
 216         NDIS_80211_STATUSTYPE_RADIOSTATE,
 217 };
 218
 219 enum ndis_80211_media_stream_mode {
 220         NDIS_80211_MEDIA_STREAM_OFF,
 221         NDIS_80211_MEDIA_STREAM_ON
 222 };
 223
 224 enum ndis_80211_radio_status {
 225         NDIS_80211_RADIO_STATUS_ON,
 226         NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
 227         NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
 228 };
 229
 230 enum ndis_80211_addkey_bits {
 231         NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
 232         NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
 233         NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
 234         NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
 235 };
 236
 237 enum ndis_80211_addwep_bits {
 238         NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
 239         NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
 240 };
 241
 242 struct ndis_80211_auth_request {
 243         __le32 length;
 244         u8 bssid[6];
 245         u8 padding[2];
 246         __le32 flags;
 247 } __packed;
 248
 249 struct ndis_80211_pmkid_candidate {
 250         u8 bssid[6];
 251         u8 padding[2];
 252         __le32 flags;
 253 } __packed;
 254
 255 struct ndis_80211_pmkid_cand_list {
 256         __le32 version;
 257         __le32 num_candidates;
 258         struct ndis_80211_pmkid_candidate candidate_list[0];
 259 } __packed;
 260
 261 struct ndis_80211_status_indication {
 262         __le32 status_type;
 263         union {
 264                 __le32                                  media_stream_mode;
 265                 __le32                                  radio_status;
 266                 struct ndis_80211_auth_request          auth_request[0];
 267                 struct ndis_80211_pmkid_cand_list       cand_list;
 268         } u;
 269 } __packed;
 270
 271 struct ndis_80211_ssid {
 272         __le32 length;
 273         u8 essid[NDIS_802_11_LENGTH_SSID];
 274 } __packed;
 275
 276 struct ndis_80211_conf_freq_hop {
 277         __le32 length;
 278         __le32 hop_pattern;
 279         __le32 hop_set;
 280         __le32 dwell_time;
 281 } __packed;
 282
 283 struct ndis_80211_conf {
 284         __le32 length;
 285         __le32 beacon_period;
 286         __le32 atim_window;
 287         __le32 ds_config;
 288         struct ndis_80211_conf_freq_hop fh_config;
 289 } __packed;
 290
 291 struct ndis_80211_bssid_ex {
 292         __le32 length;
 293         u8 mac[6];
 294         u8 padding[2];
 295         struct ndis_80211_ssid ssid;
 296         __le32 privacy;
 297         __le32 rssi;
 298         __le32 net_type;
 299         struct ndis_80211_conf config;
 300         __le32 net_infra;
 301         u8 rates[NDIS_802_11_LENGTH_RATES_EX];
 302         __le32 ie_length;
 303         u8 ies[0];
 304 } __packed;
 305
 306 struct ndis_80211_bssid_list_ex {
 307         __le32 num_items;
 308         struct ndis_80211_bssid_ex bssid[0];
 309 } __packed;
 310
 311 struct ndis_80211_fixed_ies {
 312         u8 timestamp[8];
 313         __le16 beacon_interval;
 314         __le16 capabilities;
 315 } __packed;
 316
 317 struct ndis_80211_wep_key {
 318         __le32 size;
 319         __le32 index;
 320         __le32 length;
 321         u8 material[32];
 322 } __packed;
 323
 324 struct ndis_80211_key {
 325         __le32 size;
 326         __le32 index;
 327         __le32 length;
 328         u8 bssid[6];
 329         u8 padding[6];
 330         u8 rsc[8];
 331         u8 material[32];
 332 } __packed;
 333
 334 struct ndis_80211_remove_key {
 335         __le32 size;
 336         __le32 index;
 337         u8 bssid[6];
 338         u8 padding[2];
 339 } __packed;
 340
 341 struct ndis_config_param {
 342         __le32 name_offs;
 343         __le32 name_length;
 344         __le32 type;
 345         __le32 value_offs;
 346         __le32 value_length;
 347 } __packed;
 348
 349 struct ndis_80211_assoc_info {
 350         __le32 length;
 351         __le16 req_ies;
 352         struct req_ie {
 353                 __le16 capa;
 354                 __le16 listen_interval;
 355                 u8 cur_ap_address[6];
 356         } req_ie;
 357         __le32 req_ie_length;
 358         __le32 offset_req_ies;
 359         __le16 resp_ies;
 360         struct resp_ie {
 361                 __le16 capa;
 362                 __le16 status_code;
 363                 __le16 assoc_id;
 364         } resp_ie;
 365         __le32 resp_ie_length;
 366         __le32 offset_resp_ies;
 367 } __packed;
 368
 369 struct ndis_80211_auth_encr_pair {
 370         __le32 auth_mode;
 371         __le32 encr_mode;
 372 } __packed;
 373
 374 struct ndis_80211_capability {
 375         __le32 length;
 376         __le32 version;
 377         __le32 num_pmkids;
 378         __le32 num_auth_encr_pair;
 379         struct ndis_80211_auth_encr_pair auth_encr_pair[0];
 380 } __packed;
 381
 382 struct ndis_80211_bssid_info {
 383         u8 bssid[6];
 384         u8 pmkid[16];
 385 };
 386
 387 struct ndis_80211_pmkid {
 388         __le32 length;
 389         __le32 bssid_info_count;
 390         struct ndis_80211_bssid_info bssid_info[0];
 391 };
 392
 393 /*
 394  *  private data
 395  */
 396 #define NET_TYPE_11FB   0
 397
 398 #define CAP_MODE_80211A         1
 399 #define CAP_MODE_80211B         2
 400 #define CAP_MODE_80211G         4
 401 #define CAP_MODE_MASK           7
 402
 403 #define WORK_LINK_UP            (1<<0)
 404 #define WORK_LINK_DOWN          (1<<1)
 405 #define WORK_SET_MULTICAST_LIST (1<<2)
 406
 407 #define RNDIS_WLAN_ALG_NONE     0
 408 #define RNDIS_WLAN_ALG_WEP      (1<<0)
 409 #define RNDIS_WLAN_ALG_TKIP     (1<<1)
 410 #define RNDIS_WLAN_ALG_CCMP     (1<<2)
 411
 412 #define RNDIS_WLAN_KEY_MGMT_NONE        0
 413 #define RNDIS_WLAN_KEY_MGMT_802_1X      (1<<0)
 414 #define RNDIS_WLAN_KEY_MGMT_PSK         (1<<1)
 415
 416 #define COMMAND_BUFFER_SIZE     (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
 417
 418 static const struct ieee80211_channel rndis_channels[] = {
 419         { .center_freq = 2412 },
 420         { .center_freq = 2417 },
 421         { .center_freq = 2422 },
 422         { .center_freq = 2427 },
 423         { .center_freq = 2432 },
 424         { .center_freq = 2437 },
 425         { .center_freq = 2442 },
 426         { .center_freq = 2447 },
 427         { .center_freq = 2452 },
 428         { .center_freq = 2457 },
 429         { .center_freq = 2462 },
 430         { .center_freq = 2467 },
 431         { .center_freq = 2472 },
 432         { .center_freq = 2484 },
 433 };
 434
 435 static const struct ieee80211_rate rndis_rates[] = {
 436         { .bitrate = 10 },
 437         { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 438         { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 439         { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 440         { .bitrate = 60 },
 441         { .bitrate = 90 },
 442         { .bitrate = 120 },
 443         { .bitrate = 180 },
 444         { .bitrate = 240 },
 445         { .bitrate = 360 },
 446         { .bitrate = 480 },
 447         { .bitrate = 540 }
 448 };
 449
 450 static const u32 rndis_cipher_suites[] = {
 451         WLAN_CIPHER_SUITE_WEP40,
 452         WLAN_CIPHER_SUITE_WEP104,
 453         WLAN_CIPHER_SUITE_TKIP,
 454         WLAN_CIPHER_SUITE_CCMP,
 455 };
 456
 457 struct rndis_wlan_encr_key {
 458         int len;
 459         u32 cipher;
 460         u8 material[32];
 461         u8 bssid[ETH_ALEN];
 462         bool pairwise;
 463         bool tx_key;
 464 };
 465
 466 /* RNDIS device private data */
 467 struct rndis_wlan_private {
 468         struct usbnet *usbdev;
 469
 470         struct wireless_dev wdev;
 471
 472         struct cfg80211_scan_request *scan_request;
 473
 474         struct workqueue_struct *workqueue;
 475         struct delayed_work dev_poller_work;
 476         struct delayed_work scan_work;
 477         struct work_struct work;
 478         struct mutex command_lock;
 479         unsigned long work_pending;
 480         int last_qual;
 481
 482         struct ieee80211_supported_band band;
 483         struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
 484         struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
 485         u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
 486
 487         int device_type;
 488         int caps;
 489         int multicast_size;
 490
 491         /* module parameters */
 492         char param_country[4];
 493         int  param_frameburst;
 494         int  param_afterburner;
 495         int  param_power_save;
 496         int  param_power_output;
 497         int  param_roamtrigger;
 498         int  param_roamdelta;
 499         u32  param_workaround_interval;
 500
 501         /* hardware state */
 502         bool radio_on;
 503         int infra_mode;
 504         bool connected;
 505         u8 bssid[ETH_ALEN];
 506         struct ndis_80211_ssid essid;
 507         __le32 current_command_oid;
 508
 509         /* encryption stuff */
 510         int  encr_tx_key_index;
 511         struct rndis_wlan_encr_key encr_keys[4];
 512         int  wpa_version;
 513
 514         u8 command_buffer[COMMAND_BUFFER_SIZE];
 515 };
 516
 517 /*
 518  * cfg80211 ops
 519  */
 520 static int rndis_change_virtual_intf(struct wiphy *wiphy,
 521                                         struct net_device *dev,
 522                                         enum nl80211_iftype type, u32 *flags,
 523                                         struct vif_params *params);
 524
 525 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
 526                         struct cfg80211_scan_request *request);
 527
 528 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
 529
 530 static int rndis_set_tx_power(struct wiphy *wiphy,
 531                               enum nl80211_tx_power_setting type,
 532                               int mbm);
 533 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
 534
 535 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
 536                                 struct cfg80211_connect_params *sme);
 537
 538 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
 539                                 u16 reason_code);
 540
 541 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
 542                                         struct cfg80211_ibss_params *params);
 543
 544 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
 545
 546 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *dev,
 547         struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
 548
 549 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
 550                          u8 key_index, bool pairwise, const u8 *mac_addr,
 551                          struct key_params *params);
 552
 553 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
 554                          u8 key_index, bool pairwise, const u8 *mac_addr);
 555
 556 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 557                                                                 u8 key_index);
 558
 559 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
 560                                         u8 *mac, struct station_info *sinfo);
 561
 562 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
 563                                int idx, u8 *mac, struct station_info *sinfo);
 564
 565 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 566                                 struct cfg80211_pmksa *pmksa);
 567
 568 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 569                                 struct cfg80211_pmksa *pmksa);
 570
 571 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
 572
 573 static struct cfg80211_ops rndis_config_ops = {
 574         .change_virtual_intf = rndis_change_virtual_intf,
 575         .scan = rndis_scan,
 576         .set_wiphy_params = rndis_set_wiphy_params,
 577         .set_tx_power = rndis_set_tx_power,
 578         .get_tx_power = rndis_get_tx_power,
 579         .connect = rndis_connect,
 580         .disconnect = rndis_disconnect,
 581         .join_ibss = rndis_join_ibss,
 582         .leave_ibss = rndis_leave_ibss,
 583         .set_channel = rndis_set_channel,
 584         .add_key = rndis_add_key,
 585         .del_key = rndis_del_key,
 586         .set_default_key = rndis_set_default_key,
 587         .get_station = rndis_get_station,
 588         .dump_station = rndis_dump_station,
 589         .set_pmksa = rndis_set_pmksa,
 590         .del_pmksa = rndis_del_pmksa,
 591         .flush_pmksa = rndis_flush_pmksa,
 592 };
 593
 594 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
 595
 596
 597 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
 598 {
 599         return (struct rndis_wlan_private *)dev->driver_priv;
 600 }
 601
 602 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
 603 {
 604         switch (priv->param_power_output) {
 605         default:
 606         case 3:
 607                 return BCM4320_DEFAULT_TXPOWER_DBM_100;
 608         case 2:
 609                 return BCM4320_DEFAULT_TXPOWER_DBM_75;
 610         case 1:
 611                 return BCM4320_DEFAULT_TXPOWER_DBM_50;
 612         case 0:
 613                 return BCM4320_DEFAULT_TXPOWER_DBM_25;
 614         }
 615 }
 616
 617 static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
 618 {
 619         int cipher = priv->encr_keys[idx].cipher;
 620
 621         return (cipher == WLAN_CIPHER_SUITE_CCMP ||
 622                 cipher == WLAN_CIPHER_SUITE_TKIP);
 623 }
 624
 625 static int rndis_cipher_to_alg(u32 cipher)
 626 {
 627         switch (cipher) {
 628         default:
 629                 return RNDIS_WLAN_ALG_NONE;
 630         case WLAN_CIPHER_SUITE_WEP40:
 631         case WLAN_CIPHER_SUITE_WEP104:
 632                 return RNDIS_WLAN_ALG_WEP;
 633         case WLAN_CIPHER_SUITE_TKIP:
 634                 return RNDIS_WLAN_ALG_TKIP;
 635         case WLAN_CIPHER_SUITE_CCMP:
 636                 return RNDIS_WLAN_ALG_CCMP;
 637         }
 638 }
 639
 640 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
 641 {
 642         switch (akm_suite) {
 643         default:
 644                 return RNDIS_WLAN_KEY_MGMT_NONE;
 645         case WLAN_AKM_SUITE_8021X:
 646                 return RNDIS_WLAN_KEY_MGMT_802_1X;
 647         case WLAN_AKM_SUITE_PSK:
 648                 return RNDIS_WLAN_KEY_MGMT_PSK;
 649         }
 650 }
 651
 652 #ifdef DEBUG
 653 static const char *oid_to_string(__le32 oid)
 654 {
 655         switch (oid) {
 656 #define OID_STR(oid) case oid: return(#oid)
 657                 /* from rndis_host.h */
 658                 OID_STR(OID_802_3_PERMANENT_ADDRESS);
 659                 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
 660                 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
 661                 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
 662
 663                 /* from rndis_wlan.c */
 664                 OID_STR(OID_GEN_LINK_SPEED);
 665                 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
 666
 667                 OID_STR(OID_GEN_XMIT_OK);
 668                 OID_STR(OID_GEN_RCV_OK);
 669                 OID_STR(OID_GEN_XMIT_ERROR);
 670                 OID_STR(OID_GEN_RCV_ERROR);
 671                 OID_STR(OID_GEN_RCV_NO_BUFFER);
 672
 673                 OID_STR(OID_802_3_CURRENT_ADDRESS);
 674                 OID_STR(OID_802_3_MULTICAST_LIST);
 675                 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
 676
 677                 OID_STR(OID_802_11_BSSID);
 678                 OID_STR(OID_802_11_SSID);
 679                 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
 680                 OID_STR(OID_802_11_ADD_WEP);
 681                 OID_STR(OID_802_11_REMOVE_WEP);
 682                 OID_STR(OID_802_11_DISASSOCIATE);
 683                 OID_STR(OID_802_11_AUTHENTICATION_MODE);
 684                 OID_STR(OID_802_11_PRIVACY_FILTER);
 685                 OID_STR(OID_802_11_BSSID_LIST_SCAN);
 686                 OID_STR(OID_802_11_ENCRYPTION_STATUS);
 687                 OID_STR(OID_802_11_ADD_KEY);
 688                 OID_STR(OID_802_11_REMOVE_KEY);
 689                 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
 690                 OID_STR(OID_802_11_PMKID);
 691                 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
 692                 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
 693                 OID_STR(OID_802_11_TX_POWER_LEVEL);
 694                 OID_STR(OID_802_11_RSSI);
 695                 OID_STR(OID_802_11_RSSI_TRIGGER);
 696                 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
 697                 OID_STR(OID_802_11_RTS_THRESHOLD);
 698                 OID_STR(OID_802_11_SUPPORTED_RATES);
 699                 OID_STR(OID_802_11_CONFIGURATION);
 700                 OID_STR(OID_802_11_BSSID_LIST);
 701 #undef OID_STR
 702         }
 703
 704         return "?";
 705 }
 706 #else
 707 static const char *oid_to_string(__le32 oid)
 708 {
 709         return "?";
 710 }
 711 #endif
 712
 713 /* translate error code */
 714 static int rndis_error_status(__le32 rndis_status)
 715 {
 716         int ret = -EINVAL;
 717         switch (rndis_status) {
 718         case RNDIS_STATUS_SUCCESS:
 719                 ret = 0;
 720                 break;
 721         case RNDIS_STATUS_FAILURE:
 722         case RNDIS_STATUS_INVALID_DATA:
 723                 ret = -EINVAL;
 724                 break;
 725         case RNDIS_STATUS_NOT_SUPPORTED:
 726                 ret = -EOPNOTSUPP;
 727                 break;
 728         case RNDIS_STATUS_ADAPTER_NOT_READY:
 729         case RNDIS_STATUS_ADAPTER_NOT_OPEN:
 730                 ret = -EBUSY;
 731                 break;
 732         }
 733         return ret;
 734 }
 735
 736 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
 737 {
 738         struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
 739         union {
 740                 void                    *buf;
 741                 struct rndis_msg_hdr    *header;
 742                 struct rndis_query      *get;
 743                 struct rndis_query_c    *get_c;
 744         } u;
 745         int ret, buflen;
 746         int resplen, respoffs, copylen;
 747
 748         buflen = *len + sizeof(*u.get);
 749         if (buflen < CONTROL_BUFFER_SIZE)
 750                 buflen = CONTROL_BUFFER_SIZE;
 751
 752         if (buflen > COMMAND_BUFFER_SIZE) {
 753                 u.buf = kmalloc(buflen, GFP_KERNEL);
 754                 if (!u.buf)
 755                         return -ENOMEM;
 756         } else {
 757                 u.buf = priv->command_buffer;
 758         }
 759
 760         mutex_lock(&priv->command_lock);
 761
 762         memset(u.get, 0, sizeof *u.get);
 763         u.get->msg_type = RNDIS_MSG_QUERY;
 764         u.get->msg_len = cpu_to_le32(sizeof *u.get);
 765         u.get->oid = oid;
 766
 767         priv->current_command_oid = oid;
 768         ret = rndis_command(dev, u.header, buflen);
 769         priv->current_command_oid = 0;
 770         if (ret < 0)
 771                 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
 772                            __func__, oid_to_string(oid), ret,
 773                            le32_to_cpu(u.get_c->status));
 774
 775         if (ret == 0) {
 776                 resplen = le32_to_cpu(u.get_c->len);
 777                 respoffs = le32_to_cpu(u.get_c->offset) + 8;
 778
 779                 if (respoffs > buflen) {
 780                         /* Device returned data offset outside buffer, error. */
 781                         netdev_dbg(dev->net, "%s(%s): received invalid "
 782                                 "data offset: %d > %d\n", __func__,
 783                                 oid_to_string(oid), respoffs, buflen);
 784
 785                         ret = -EINVAL;
 786                         goto exit_unlock;
 787                 }
 788
 789                 if ((resplen + respoffs) > buflen) {
 790                         /* Device would have returned more data if buffer would
 791                          * have been big enough. Copy just the bits that we got.
 792                          */
 793                         copylen = buflen - respoffs;
 794                 } else {
 795                         copylen = resplen;
 796                 }
 797
 798                 if (copylen > *len)
 799                         copylen = *len;
 800
 801                 memcpy(data, u.buf + respoffs, copylen);
 802
 803                 *len = resplen;
 804
 805                 ret = rndis_error_status(u.get_c->status);
 806                 if (ret < 0)
 807                         netdev_dbg(dev->net, "%s(%s): device returned error,  0x%08x (%d)\n",
 808                                    __func__, oid_to_string(oid),
 809                                    le32_to_cpu(u.get_c->status), ret);
 810         }
 811
 812 exit_unlock:
 813         mutex_unlock(&priv->command_lock);
 814
 815         if (u.buf != priv->command_buffer)
 816                 kfree(u.buf);
 817         return ret;
 818 }
 819
 820 static int rndis_set_oid(struct usbnet *dev, __le32 oid, const void *data,
 821                          int len)
 822 {
 823         struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
 824         union {
 825                 void                    *buf;
 826                 struct rndis_msg_hdr    *header;
 827                 struct rndis_set        *set;
 828                 struct rndis_set_c      *set_c;
 829         } u;
 830         int ret, buflen;
 831
 832         buflen = len + sizeof(*u.set);
 833         if (buflen < CONTROL_BUFFER_SIZE)
 834                 buflen = CONTROL_BUFFER_SIZE;
 835
 836         if (buflen > COMMAND_BUFFER_SIZE) {
 837                 u.buf = kmalloc(buflen, GFP_KERNEL);
 838                 if (!u.buf)
 839                         return -ENOMEM;
 840         } else {
 841                 u.buf = priv->command_buffer;
 842         }
 843
 844         mutex_lock(&priv->command_lock);
 845
 846         memset(u.set, 0, sizeof *u.set);
 847         u.set->msg_type = RNDIS_MSG_SET;
 848         u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
 849         u.set->oid = oid;
 850         u.set->len = cpu_to_le32(len);
 851         u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
 852         u.set->handle = cpu_to_le32(0);
 853         memcpy(u.buf + sizeof(*u.set), data, len);
 854
 855         priv->current_command_oid = oid;
 856         ret = rndis_command(dev, u.header, buflen);
 857         priv->current_command_oid = 0;
 858         if (ret < 0)
 859                 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
 860                            __func__, oid_to_string(oid), ret,
 861                            le32_to_cpu(u.set_c->status));
 862
 863         if (ret == 0) {
 864                 ret = rndis_error_status(u.set_c->status);
 865
 866                 if (ret < 0)
 867                         netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
 868                                    __func__, oid_to_string(oid),
 869                                    le32_to_cpu(u.set_c->status), ret);
 870         }
 871
 872         mutex_unlock(&priv->command_lock);
 873
 874         if (u.buf != priv->command_buffer)
 875                 kfree(u.buf);
 876         return ret;
 877 }
 878
 879 static int rndis_reset(struct usbnet *usbdev)
 880 {
 881         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 882         struct rndis_reset *reset;
 883         int ret;
 884
 885         mutex_lock(&priv->command_lock);
 886
 887         reset = (void *)priv->command_buffer;
 888         memset(reset, 0, sizeof(*reset));
 889         reset->msg_type = RNDIS_MSG_RESET;
 890         reset->msg_len = cpu_to_le32(sizeof(*reset));
 891         priv->current_command_oid = 0;
 892         ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
 893
 894         mutex_unlock(&priv->command_lock);
 895
 896         if (ret < 0)
 897                 return ret;
 898         return 0;
 899 }
 900
 901 /*
 902  * Specs say that we can only set config parameters only soon after device
 903  * initialization.
 904  *   value_type: 0 = u32, 2 = unicode string
 905  */
 906 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
 907                                                 int value_type, void *value)
 908 {
 909         struct ndis_config_param *infobuf;
 910         int value_len, info_len, param_len, ret, i;
 911         __le16 *unibuf;
 912         __le32 *dst_value;
 913
 914         if (value_type == 0)
 915                 value_len = sizeof(__le32);
 916         else if (value_type == 2)
 917                 value_len = strlen(value) * sizeof(__le16);
 918         else
 919                 return -EINVAL;
 920
 921         param_len = strlen(param) * sizeof(__le16);
 922         info_len = sizeof(*infobuf) + param_len + value_len;
 923
 924 #ifdef DEBUG
 925         info_len += 12;
 926 #endif
 927         infobuf = kmalloc(info_len, GFP_KERNEL);
 928         if (!infobuf)
 929                 return -ENOMEM;
 930
 931 #ifdef DEBUG
 932         info_len -= 12;
 933         /* extra 12 bytes are for padding (debug output) */
 934         memset(infobuf, 0xCC, info_len + 12);
 935 #endif
 936
 937         if (value_type == 2)
 938                 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
 939                            param, (u8 *)value);
 940         else
 941                 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
 942                            param, *(u32 *)value);
 943
 944         infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
 945         infobuf->name_length = cpu_to_le32(param_len);
 946         infobuf->type = cpu_to_le32(value_type);
 947         infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
 948         infobuf->value_length = cpu_to_le32(value_len);
 949
 950         /* simple string to unicode string conversion */
 951         unibuf = (void *)infobuf + sizeof(*infobuf);
 952         for (i = 0; i < param_len / sizeof(__le16); i++)
 953                 unibuf[i] = cpu_to_le16(param[i]);
 954
 955         if (value_type == 2) {
 956                 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
 957                 for (i = 0; i < value_len / sizeof(__le16); i++)
 958                         unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
 959         } else {
 960                 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
 961                 *dst_value = cpu_to_le32(*(u32 *)value);
 962         }
 963
 964 #ifdef DEBUG
 965         netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
 966         for (i = 0; i < info_len; i += 12) {
 967                 u32 *tmp = (u32 *)((u8 *)infobuf + i);
 968                 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
 969                            cpu_to_be32(tmp[0]),
 970                            cpu_to_be32(tmp[1]),
 971                            cpu_to_be32(tmp[2]));
 972         }
 973 #endif
 974
 975         ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
 976                                                         infobuf, info_len);
 977         if (ret != 0)
 978                 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
 979                            ret);
 980
 981         kfree(infobuf);
 982         return ret;
 983 }
 984
 985 static int rndis_set_config_parameter_str(struct usbnet *dev,
 986                                                 char *param, char *value)
 987 {
 988         return rndis_set_config_parameter(dev, param, 2, value);
 989 }
 990
 991 /*
 992  * data conversion functions
 993  */
 994 static int level_to_qual(int level)
 995 {
 996         int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
 997         return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
 998 }
 999
1000 /*
1001  * common functions
1002  */
1003 static int set_infra_mode(struct usbnet *usbdev, int mode);
1004 static void restore_keys(struct usbnet *usbdev);
1005 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
1006                                         bool *matched);
1007
1008 static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
1009 {
1010         __le32 tmp;
1011
1012         /* Note: OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
1013         tmp = cpu_to_le32(1);
1014         return rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1015                                                         sizeof(tmp));
1016 }
1017
1018 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
1019 {
1020         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1021         int ret;
1022
1023         ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
1024         if (ret < 0) {
1025                 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
1026                 return ret;
1027         }
1028         if (ret == 0) {
1029                 memcpy(&priv->essid, ssid, sizeof(priv->essid));
1030                 priv->radio_on = true;
1031                 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1032         }
1033
1034         return ret;
1035 }
1036
1037 static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1038 {
1039         int ret;
1040
1041         ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1042         if (ret < 0) {
1043                 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1044                             bssid, ret);
1045                 return ret;
1046         }
1047
1048         return ret;
1049 }
1050
1051 static int clear_bssid(struct usbnet *usbdev)
1052 {
1053         static const u8 broadcast_mac[ETH_ALEN] = {
1054                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1055         };
1056
1057         return set_bssid(usbdev, broadcast_mac);
1058 }
1059
1060 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1061 {
1062         int ret, len;
1063
1064         len = ETH_ALEN;
1065         ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
1066
1067         if (ret != 0)
1068                 memset(bssid, 0, ETH_ALEN);
1069
1070         return ret;
1071 }
1072
1073 static int get_association_info(struct usbnet *usbdev,
1074                         struct ndis_80211_assoc_info *info, int len)
1075 {
1076         return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
1077                                 info, &len);
1078 }
1079
1080 static bool is_associated(struct usbnet *usbdev)
1081 {
1082         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1083         u8 bssid[ETH_ALEN];
1084         int ret;
1085
1086         if (!priv->radio_on)
1087                 return false;
1088
1089         ret = get_bssid(usbdev, bssid);
1090
1091         return (ret == 0 && !is_zero_ether_addr(bssid));
1092 }
1093
1094 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1095 {
1096         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1097         struct ndis_80211_ssid ssid;
1098         int i, ret = 0;
1099
1100         if (priv->radio_on) {
1101                 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1102                 if (ret == 0) {
1103                         priv->radio_on = false;
1104                         netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1105                                    __func__);
1106
1107                         if (reset_ssid)
1108                                 msleep(100);
1109                 }
1110         }
1111
1112         /* disassociate causes radio to be turned off; if reset_ssid
1113          * is given, set random ssid to enable radio */
1114         if (reset_ssid) {
1115                 /* Set device to infrastructure mode so we don't get ad-hoc
1116                  * 'media connect' indications with the random ssid.
1117                  */
1118                 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1119
1120                 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1121                 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1122                 ssid.essid[0] = 0x1;
1123                 ssid.essid[1] = 0xff;
1124                 for (i = 2; i < sizeof(ssid.essid); i++)
1125                         ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1126                 ret = set_essid(usbdev, &ssid);
1127         }
1128         return ret;
1129 }
1130
1131 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1132                                 enum nl80211_auth_type auth_type, int keymgmt)
1133 {
1134         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1135         __le32 tmp;
1136         int auth_mode, ret;
1137
1138         netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1139                    __func__, wpa_version, auth_type, keymgmt);
1140
1141         if (wpa_version & NL80211_WPA_VERSION_2) {
1142                 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1143                         auth_mode = NDIS_80211_AUTH_WPA2;
1144                 else
1145                         auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1146         } else if (wpa_version & NL80211_WPA_VERSION_1) {
1147                 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1148                         auth_mode = NDIS_80211_AUTH_WPA;
1149                 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1150                         auth_mode = NDIS_80211_AUTH_WPA_PSK;
1151                 else
1152                         auth_mode = NDIS_80211_AUTH_WPA_NONE;
1153         } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1154                 auth_mode = NDIS_80211_AUTH_SHARED;
1155         else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1156                 auth_mode = NDIS_80211_AUTH_OPEN;
1157         else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1158                 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1159         else
1160                 return -ENOTSUPP;
1161
1162         tmp = cpu_to_le32(auth_mode);
1163         ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1164                                                                 sizeof(tmp));
1165         if (ret != 0) {
1166                 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1167                             ret);
1168                 return ret;
1169         }
1170
1171         priv->wpa_version = wpa_version;
1172
1173         return 0;
1174 }
1175
1176 static int set_priv_filter(struct usbnet *usbdev)
1177 {
1178         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1179         __le32 tmp;
1180
1181         netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1182                    __func__, priv->wpa_version);
1183
1184         if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1185             priv->wpa_version & NL80211_WPA_VERSION_1)
1186                 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1187         else
1188                 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1189
1190         return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1191                                                                 sizeof(tmp));
1192 }
1193
1194 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1195 {
1196         __le32 tmp;
1197         int encr_mode, ret;
1198
1199         netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1200                    __func__, pairwise, groupwise);
1201
1202         if (pairwise & RNDIS_WLAN_ALG_CCMP)
1203                 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1204         else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1205                 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1206         else if (pairwise & RNDIS_WLAN_ALG_WEP)
1207                 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1208         else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1209                 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1210         else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1211                 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1212         else
1213                 encr_mode = NDIS_80211_ENCR_DISABLED;
1214
1215         tmp = cpu_to_le32(encr_mode);
1216         ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1217                                                                 sizeof(tmp));
1218         if (ret != 0) {
1219                 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1220                             ret);
1221                 return ret;
1222         }
1223
1224         return 0;
1225 }
1226
1227 static int set_infra_mode(struct usbnet *usbdev, int mode)
1228 {
1229         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1230         __le32 tmp;
1231         int ret;
1232
1233         netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1234                    __func__, priv->infra_mode);
1235
1236         tmp = cpu_to_le32(mode);
1237         ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1238                                                                 sizeof(tmp));
1239         if (ret != 0) {
1240                 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1241                             ret);
1242                 return ret;
1243         }
1244
1245         /* NDIS drivers clear keys when infrastructure mode is
1246          * changed. But Linux tools assume otherwise. So set the
1247          * keys */
1248         restore_keys(usbdev);
1249
1250         priv->infra_mode = mode;
1251         return 0;
1252 }
1253
1254 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1255 {
1256         __le32 tmp;
1257
1258         netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1259
1260         if (rts_threshold < 0 || rts_threshold > 2347)
1261                 rts_threshold = 2347;
1262
1263         tmp = cpu_to_le32(rts_threshold);
1264         return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1265                                                                 sizeof(tmp));
1266 }
1267
1268 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1269 {
1270         __le32 tmp;
1271
1272         netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1273
1274         if (frag_threshold < 256 || frag_threshold > 2346)
1275                 frag_threshold = 2346;
1276
1277         tmp = cpu_to_le32(frag_threshold);
1278         return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1279                                                                 sizeof(tmp));
1280 }
1281
1282 static void set_default_iw_params(struct usbnet *usbdev)
1283 {
1284         set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1285         set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1286                                                 RNDIS_WLAN_KEY_MGMT_NONE);
1287         set_priv_filter(usbdev);
1288         set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1289 }
1290
1291 static int deauthenticate(struct usbnet *usbdev)
1292 {
1293         int ret;
1294
1295         ret = disassociate(usbdev, true);
1296         set_default_iw_params(usbdev);
1297         return ret;
1298 }
1299
1300 static int set_channel(struct usbnet *usbdev, int channel)
1301 {
1302         struct ndis_80211_conf config;
1303         unsigned int dsconfig;
1304         int len, ret;
1305
1306         netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1307
1308         /* this OID is valid only when not associated */
1309         if (is_associated(usbdev))
1310                 return 0;
1311
1312         dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1313
1314         len = sizeof(config);
1315         ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1316         if (ret < 0) {
1317                 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1318                            __func__);
1319                 return ret;
1320         }
1321
1322         config.ds_config = cpu_to_le32(dsconfig);
1323         ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1324                                                                 sizeof(config));
1325
1326         netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1327
1328         return ret;
1329 }
1330
1331 /* index must be 0 - N, as per NDIS  */
1332 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1333                                                                 int index)
1334 {
1335         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1336         struct ndis_80211_wep_key ndis_key;
1337         u32 cipher;
1338         int ret;
1339
1340         netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1341                    __func__, index, key_len);
1342
1343         if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1344                 return -EINVAL;
1345
1346         if (key_len == 5)
1347                 cipher = WLAN_CIPHER_SUITE_WEP40;
1348         else
1349                 cipher = WLAN_CIPHER_SUITE_WEP104;
1350
1351         memset(&ndis_key, 0, sizeof(ndis_key));
1352
1353         ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1354         ndis_key.length = cpu_to_le32(key_len);
1355         ndis_key.index = cpu_to_le32(index);
1356         memcpy(&ndis_key.material, key, key_len);
1357
1358         if (index == priv->encr_tx_key_index) {
1359                 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1360                 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1361                                                         RNDIS_WLAN_ALG_NONE);
1362                 if (ret)
1363                         netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1364                                     ret);
1365         }
1366
1367         ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1368                                                         sizeof(ndis_key));
1369         if (ret != 0) {
1370                 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1371                             index + 1, ret);
1372                 return ret;
1373         }
1374
1375         priv->encr_keys[index].len = key_len;
1376         priv->encr_keys[index].cipher = cipher;
1377         memcpy(&priv->encr_keys[index].material, key, key_len);
1378         memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1379
1380         return 0;
1381 }
1382
1383 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1384                         int index, const u8 *addr, const u8 *rx_seq,
1385                         int seq_len, u32 cipher, __le32 flags)
1386 {
1387         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1388         struct ndis_80211_key ndis_key;
1389         bool is_addr_ok;
1390         int ret;
1391
1392         if (index < 0 || index >= 4) {
1393                 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1394                            __func__, index);
1395                 return -EINVAL;
1396         }
1397         if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1398                 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1399                            __func__, key_len);
1400                 return -EINVAL;
1401         }
1402         if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1403                 if (!rx_seq || seq_len <= 0) {
1404                         netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1405                                    __func__);
1406                         return -EINVAL;
1407                 }
1408                 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1409                         netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1410                         return -EINVAL;
1411                 }
1412         }
1413
1414         is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1415                                         !is_broadcast_ether_addr(addr);
1416         if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1417                 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1418                            __func__, addr);
1419                 return -EINVAL;
1420         }
1421
1422         netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1423                    __func__, index,
1424                    !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1425                    !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1426                    !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1427
1428         memset(&ndis_key, 0, sizeof(ndis_key));
1429
1430         ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1431                                 sizeof(ndis_key.material) + key_len);
1432         ndis_key.length = cpu_to_le32(key_len);
1433         ndis_key.index = cpu_to_le32(index) | flags;
1434
1435         if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1436                 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1437                  * different order than NDIS spec, so swap the order here. */
1438                 memcpy(ndis_key.material, key, 16);
1439                 memcpy(ndis_key.material + 16, key + 24, 8);
1440                 memcpy(ndis_key.material + 24, key + 16, 8);
1441         } else
1442                 memcpy(ndis_key.material, key, key_len);
1443
1444         if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1445                 memcpy(ndis_key.rsc, rx_seq, seq_len);
1446
1447         if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1448                 /* pairwise key */
1449                 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1450         } else {
1451                 /* group key */
1452                 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1453                         memset(ndis_key.bssid, 0xff, ETH_ALEN);
1454                 else
1455                         get_bssid(usbdev, ndis_key.bssid);
1456         }
1457
1458         ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1459                                         le32_to_cpu(ndis_key.size));
1460         netdev_dbg(usbdev->net, "%s(): OID_802_11_ADD_KEY -> %08X\n",
1461                    __func__, ret);
1462         if (ret != 0)
1463                 return ret;
1464
1465         memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1466         priv->encr_keys[index].len = key_len;
1467         priv->encr_keys[index].cipher = cipher;
1468         memcpy(&priv->encr_keys[index].material, key, key_len);
1469         if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1470                 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1471         else
1472                 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1473
1474         if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1475                 priv->encr_tx_key_index = index;
1476
1477         return 0;
1478 }
1479
1480 static int restore_key(struct usbnet *usbdev, int key_idx)
1481 {
1482         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1483         struct rndis_wlan_encr_key key;
1484
1485         if (is_wpa_key(priv, key_idx))
1486                 return 0;
1487
1488         key = priv->encr_keys[key_idx];
1489
1490         netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1491
1492         if (key.len == 0)
1493                 return 0;
1494
1495         return add_wep_key(usbdev, key.material, key.len, key_idx);
1496 }
1497
1498 static void restore_keys(struct usbnet *usbdev)
1499 {
1500         int i;
1501
1502         for (i = 0; i < 4; i++)
1503                 restore_key(usbdev, i);
1504 }
1505
1506 static void clear_key(struct rndis_wlan_private *priv, int idx)
1507 {
1508         memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1509 }
1510
1511 /* remove_key is for both wep and wpa */
1512 static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
1513 {
1514         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1515         struct ndis_80211_remove_key remove_key;
1516         __le32 keyindex;
1517         bool is_wpa;
1518         int ret;
1519
1520         if (priv->encr_keys[index].len == 0)
1521                 return 0;
1522
1523         is_wpa = is_wpa_key(priv, index);
1524
1525         netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1526                    __func__, index, is_wpa ? "wpa" : "wep",
1527                    priv->encr_keys[index].len);
1528
1529         clear_key(priv, index);
1530
1531         if (is_wpa) {
1532                 remove_key.size = cpu_to_le32(sizeof(remove_key));
1533                 remove_key.index = cpu_to_le32(index);
1534                 if (bssid) {
1535                         /* pairwise key */
1536                         if (!is_broadcast_ether_addr(bssid))
1537                                 remove_key.index |=
1538                                         NDIS_80211_ADDKEY_PAIRWISE_KEY;
1539                         memcpy(remove_key.bssid, bssid,
1540                                         sizeof(remove_key.bssid));
1541                 } else
1542                         memset(remove_key.bssid, 0xff,
1543                                                 sizeof(remove_key.bssid));
1544
1545                 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1546                                                         sizeof(remove_key));
1547                 if (ret != 0)
1548                         return ret;
1549         } else {
1550                 keyindex = cpu_to_le32(index);
1551                 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1552                                                         sizeof(keyindex));
1553                 if (ret != 0) {
1554                         netdev_warn(usbdev->net,
1555                                     "removing encryption key %d failed (%08X)\n",
1556                                     index, ret);
1557                         return ret;
1558                 }
1559         }
1560
1561         /* if it is transmit key, disable encryption */
1562         if (index == priv->encr_tx_key_index)
1563                 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1564
1565         return 0;
1566 }
1567
1568 static void set_multicast_list(struct usbnet *usbdev)
1569 {
1570         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1571         struct netdev_hw_addr *ha;
1572         __le32 filter, basefilter;
1573         int ret;
1574         char *mc_addrs = NULL;
1575         int mc_count;
1576
1577         basefilter = filter = RNDIS_PACKET_TYPE_DIRECTED |
1578                               RNDIS_PACKET_TYPE_BROADCAST;
1579
1580         if (usbdev->net->flags & IFF_PROMISC) {
1581                 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1582                         RNDIS_PACKET_TYPE_ALL_LOCAL;
1583         } else if (usbdev->net->flags & IFF_ALLMULTI) {
1584                 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1585         }
1586
1587         if (filter != basefilter)
1588                 goto set_filter;
1589
1590         /*
1591          * mc_list should be accessed holding the lock, so copy addresses to
1592          * local buffer first.
1593          */
1594         netif_addr_lock_bh(usbdev->net);
1595         mc_count = netdev_mc_count(usbdev->net);
1596         if (mc_count > priv->multicast_size) {
1597                 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1598         } else if (mc_count) {
1599                 int i = 0;
1600
1601                 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1602                 if (!mc_addrs) {
1603                         netdev_warn(usbdev->net,
1604                                     "couldn't alloc %d bytes of memory\n",
1605                                     mc_count * ETH_ALEN);
1606                         netif_addr_unlock_bh(usbdev->net);
1607                         return;
1608                 }
1609
1610                 netdev_for_each_mc_addr(ha, usbdev->net)
1611                         memcpy(mc_addrs + i++ * ETH_ALEN,
1612                                ha->addr, ETH_ALEN);
1613         }
1614         netif_addr_unlock_bh(usbdev->net);
1615
1616         if (filter != basefilter)
1617                 goto set_filter;
1618
1619         if (mc_count) {
1620                 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, mc_addrs,
1621                                     mc_count * ETH_ALEN);
1622                 kfree(mc_addrs);
1623                 if (ret == 0)
1624                         filter |= RNDIS_PACKET_TYPE_MULTICAST;
1625                 else
1626                         filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1627
1628                 netdev_dbg(usbdev->net, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1629                            mc_count, priv->multicast_size, ret);
1630         }
1631
1632 set_filter:
1633         ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1634                                                         sizeof(filter));
1635         if (ret < 0) {
1636                 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1637                             le32_to_cpu(filter));
1638         }
1639
1640         netdev_dbg(usbdev->net, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1641                    le32_to_cpu(filter), ret);
1642 }
1643
1644 #ifdef DEBUG
1645 static void debug_print_pmkids(struct usbnet *usbdev,
1646                                 struct ndis_80211_pmkid *pmkids,
1647                                 const char *func_str)
1648 {
1649         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1650         int i, len, count, max_pmkids, entry_len;
1651
1652         max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1653         len = le32_to_cpu(pmkids->length);
1654         count = le32_to_cpu(pmkids->bssid_info_count);
1655
1656         entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1657
1658         netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1659                                 "%d)\n", func_str, count, len, entry_len);
1660
1661         if (count > max_pmkids)
1662                 count = max_pmkids;
1663
1664         for (i = 0; i < count; i++) {
1665                 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1666
1667                 netdev_dbg(usbdev->net, "%s():  bssid: %pM, "
1668                                 "pmkid: %08X:%08X:%08X:%08X\n",
1669                                 func_str, pmkids->bssid_info[i].bssid,
1670                                 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1671                                 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1672         }
1673 }
1674 #else
1675 static void debug_print_pmkids(struct usbnet *usbdev,
1676                                 struct ndis_80211_pmkid *pmkids,
1677                                 const char *func_str)
1678 {
1679         return;
1680 }
1681 #endif
1682
1683 static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1684 {
1685         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1686         struct ndis_80211_pmkid *pmkids;
1687         int len, ret, max_pmkids;
1688
1689         max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1690         len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1691
1692         pmkids = kzalloc(len, GFP_KERNEL);
1693         if (!pmkids)
1694                 return ERR_PTR(-ENOMEM);
1695
1696         pmkids->length = cpu_to_le32(len);
1697         pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1698
1699         ret = rndis_query_oid(usbdev, OID_802_11_PMKID, pmkids, &len);
1700         if (ret < 0) {
1701                 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d)"
1702                                 " -> %d\n", __func__, len, max_pmkids, ret);
1703
1704                 kfree(pmkids);
1705                 return ERR_PTR(ret);
1706         }
1707
1708         if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1709                 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1710
1711         debug_print_pmkids(usbdev, pmkids, __func__);
1712
1713         return pmkids;
1714 }
1715
1716 static int set_device_pmkids(struct usbnet *usbdev,
1717                                 struct ndis_80211_pmkid *pmkids)
1718 {
1719         int ret, len, num_pmkids;
1720
1721         num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1722         len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1723         pmkids->length = cpu_to_le32(len);
1724
1725         debug_print_pmkids(usbdev, pmkids, __func__);
1726
1727         ret = rndis_set_oid(usbdev, OID_802_11_PMKID, pmkids,
1728                                                 le32_to_cpu(pmkids->length));
1729         if (ret < 0) {
1730                 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d) -> %d"
1731                                 "\n", __func__, len, num_pmkids, ret);
1732         }
1733
1734         kfree(pmkids);
1735         return ret;
1736 }
1737
1738 static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1739                                                 struct ndis_80211_pmkid *pmkids,
1740                                                 struct cfg80211_pmksa *pmksa,
1741                                                 int max_pmkids)
1742 {
1743         int i, len, count, newlen, err;
1744
1745         len = le32_to_cpu(pmkids->length);
1746         count = le32_to_cpu(pmkids->bssid_info_count);
1747
1748         if (count > max_pmkids)
1749                 count = max_pmkids;
1750
1751         for (i = 0; i < count; i++)
1752                 if (!compare_ether_addr(pmkids->bssid_info[i].bssid,
1753                                                         pmksa->bssid))
1754                         break;
1755
1756         /* pmkid not found */
1757         if (i == count) {
1758                 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1759                                         __func__, pmksa->bssid);
1760                 err = -ENOENT;
1761                 goto error;
1762         }
1763
1764         for (; i + 1 < count; i++)
1765                 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1766
1767         count--;
1768         newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1769
1770         pmkids->length = cpu_to_le32(newlen);
1771         pmkids->bssid_info_count = cpu_to_le32(count);
1772
1773         return pmkids;
1774 error:
1775         kfree(pmkids);
1776         return ERR_PTR(err);
1777 }
1778
1779 static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1780                                                 struct ndis_80211_pmkid *pmkids,
1781                                                 struct cfg80211_pmksa *pmksa,
1782                                                 int max_pmkids)
1783 {
1784         int i, err, len, count, newlen;
1785
1786         len = le32_to_cpu(pmkids->length);
1787         count = le32_to_cpu(pmkids->bssid_info_count);
1788
1789         if (count > max_pmkids)
1790                 count = max_pmkids;
1791
1792         /* update with new pmkid */
1793         for (i = 0; i < count; i++) {
1794                 if (compare_ether_addr(pmkids->bssid_info[i].bssid,
1795                                                         pmksa->bssid))
1796                         continue;
1797
1798                 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1799                                                                 WLAN_PMKID_LEN);
1800
1801                 return pmkids;
1802         }
1803
1804         /* out of space, return error */
1805         if (i == max_pmkids) {
1806                 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1807                 err = -ENOSPC;
1808                 goto error;
1809         }
1810
1811         /* add new pmkid */
1812         newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1813
1814         pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1815         if (!pmkids) {
1816                 err = -ENOMEM;
1817                 goto error;
1818         }
1819
1820         pmkids->length = cpu_to_le32(newlen);
1821         pmkids->bssid_info_count = cpu_to_le32(count + 1);
1822
1823         memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1824         memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1825
1826         return pmkids;
1827 error:
1828         kfree(pmkids);
1829         return ERR_PTR(err);
1830 }
1831
1832 /*
1833  * cfg80211 ops
1834  */
1835 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1836                                         struct net_device *dev,
1837                                         enum nl80211_iftype type, u32 *flags,
1838                                         struct vif_params *params)
1839 {
1840         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1841         struct usbnet *usbdev = priv->usbdev;
1842         int mode;
1843
1844         switch (type) {
1845         case NL80211_IFTYPE_ADHOC:
1846                 mode = NDIS_80211_INFRA_ADHOC;
1847                 break;
1848         case NL80211_IFTYPE_STATION:
1849                 mode = NDIS_80211_INFRA_INFRA;
1850                 break;
1851         default:
1852                 return -EINVAL;
1853         }
1854
1855         priv->wdev.iftype = type;
1856
1857         return set_infra_mode(usbdev, mode);
1858 }
1859
1860 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1861 {
1862         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1863         struct usbnet *usbdev = priv->usbdev;
1864         int err;
1865
1866         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1867                 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1868                 if (err < 0)
1869                         return err;
1870         }
1871
1872         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1873                 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1874                 if (err < 0)
1875                         return err;
1876         }
1877
1878         return 0;
1879 }
1880
1881 static int rndis_set_tx_power(struct wiphy *wiphy,
1882                               enum nl80211_tx_power_setting type,
1883                               int mbm)
1884 {
1885         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1886         struct usbnet *usbdev = priv->usbdev;
1887
1888         netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1889                    __func__, type, mbm);
1890
1891         if (mbm < 0 || (mbm % 100))
1892                 return -ENOTSUPP;
1893
1894         /* Device doesn't support changing txpower after initialization, only
1895          * turn off/on radio. Support 'auto' mode and setting same dBm that is
1896          * currently used.
1897          */
1898         if (type == NL80211_TX_POWER_AUTOMATIC ||
1899             MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1900                 if (!priv->radio_on)
1901                         disassociate(usbdev, true); /* turn on radio */
1902
1903                 return 0;
1904         }
1905
1906         return -ENOTSUPP;
1907 }
1908
1909 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1910 {
1911         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1912         struct usbnet *usbdev = priv->usbdev;
1913
1914         *dbm = get_bcm4320_power_dbm(priv);
1915
1916         netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1917
1918         return 0;
1919 }
1920
1921 #define SCAN_DELAY_JIFFIES (6 * HZ)
1922 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1923                         struct cfg80211_scan_request *request)
1924 {
1925         struct usbnet *usbdev = netdev_priv(dev);
1926         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1927         int ret;
1928         int delay = SCAN_DELAY_JIFFIES;
1929
1930         netdev_dbg(usbdev->net, "cfg80211.scan\n");
1931
1932         /* Get current bssid list from device before new scan, as new scan
1933          * clears internal bssid list.
1934          */
1935         rndis_check_bssid_list(usbdev, NULL, NULL);
1936
1937         if (!request)
1938                 return -EINVAL;
1939
1940         if (priv->scan_request && priv->scan_request != request)
1941                 return -EBUSY;
1942
1943         priv->scan_request = request;
1944
1945         ret = rndis_start_bssid_list_scan(usbdev);
1946         if (ret == 0) {
1947                 if (priv->device_type == RNDIS_BCM4320A)
1948                         delay = HZ;
1949
1950                 /* Wait before retrieving scan results from device */
1951                 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1952         }
1953
1954         return ret;
1955 }
1956
1957 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1958                                         struct ndis_80211_bssid_ex *bssid)
1959 {
1960         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1961         struct ieee80211_channel *channel;
1962         s32 signal;
1963         u64 timestamp;
1964         u16 capability;
1965         u16 beacon_interval;
1966         struct ndis_80211_fixed_ies *fixed;
1967         int ie_len, bssid_len;
1968         u8 *ie;
1969
1970         netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM]\n",
1971                    bssid->ssid.essid, bssid->mac);
1972
1973         /* parse bssid structure */
1974         bssid_len = le32_to_cpu(bssid->length);
1975
1976         if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1977                         sizeof(struct ndis_80211_fixed_ies))
1978                 return NULL;
1979
1980         fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1981
1982         ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1983         ie_len = min(bssid_len - (int)sizeof(*bssid),
1984                                         (int)le32_to_cpu(bssid->ie_length));
1985         ie_len -= sizeof(struct ndis_80211_fixed_ies);
1986         if (ie_len < 0)
1987                 return NULL;
1988
1989         /* extract data for cfg80211_inform_bss */
1990         channel = ieee80211_get_channel(priv->wdev.wiphy,
1991                         KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1992         if (!channel)
1993                 return NULL;
1994
1995         signal = level_to_qual(le32_to_cpu(bssid->rssi));
1996         timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1997         capability = le16_to_cpu(fixed->capabilities);
1998         beacon_interval = le16_to_cpu(fixed->beacon_interval);
1999
2000         return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2001                 timestamp, capability, beacon_interval, ie, ie_len, signal,
2002                 GFP_KERNEL);
2003 }
2004
2005 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2006                                         bool *matched)
2007 {
2008         void *buf = NULL;
2009         struct ndis_80211_bssid_list_ex *bssid_list;
2010         struct ndis_80211_bssid_ex *bssid;
2011         int ret = -EINVAL, len, count, bssid_len;
2012         bool resized = false;
2013
2014         netdev_dbg(usbdev->net, "check_bssid_list\n");
2015
2016         len = CONTROL_BUFFER_SIZE;
2017 resize_buf:
2018         buf = kmalloc(len, GFP_KERNEL);
2019         if (!buf) {
2020                 ret = -ENOMEM;
2021                 goto out;
2022         }
2023
2024         ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2025         if (ret != 0)
2026                 goto out;
2027
2028         if (!resized && len > CONTROL_BUFFER_SIZE) {
2029                 resized = true;
2030                 kfree(buf);
2031                 goto resize_buf;
2032         }
2033
2034         bssid_list = buf;
2035         bssid = bssid_list->bssid;
2036         bssid_len = le32_to_cpu(bssid->length);
2037         count = le32_to_cpu(bssid_list->num_items);
2038         netdev_dbg(usbdev->net, "check_bssid_list: %d BSSIDs found (buflen: %d)\n",
2039                    count, len);
2040
2041         while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
2042                 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2043                     matched) {
2044                         if (compare_ether_addr(bssid->mac, match_bssid))
2045                                 *matched = true;
2046                 }
2047
2048                 bssid = (void *)bssid + bssid_len;
2049                 bssid_len = le32_to_cpu(bssid->length);
2050                 count--;
2051         }
2052
2053 out:
2054         kfree(buf);
2055         return ret;
2056 }
2057
2058 static void rndis_get_scan_results(struct work_struct *work)
2059 {
2060         struct rndis_wlan_private *priv =
2061                 container_of(work, struct rndis_wlan_private, scan_work.work);
2062         struct usbnet *usbdev = priv->usbdev;
2063         int ret;
2064
2065         netdev_dbg(usbdev->net, "get_scan_results\n");
2066
2067         if (!priv->scan_request)
2068                 return;
2069
2070         ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2071
2072         cfg80211_scan_done(priv->scan_request, ret < 0);
2073
2074         priv->scan_request = NULL;
2075 }
2076
2077 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2078                                         struct cfg80211_connect_params *sme)
2079 {
2080         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2081         struct usbnet *usbdev = priv->usbdev;
2082         struct ieee80211_channel *channel = sme->channel;
2083         struct ndis_80211_ssid ssid;
2084         int pairwise = RNDIS_WLAN_ALG_NONE;
2085         int groupwise = RNDIS_WLAN_ALG_NONE;
2086         int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2087         int length, i, ret, chan = -1;
2088
2089         if (channel)
2090                 chan = ieee80211_frequency_to_channel(channel->center_freq);
2091
2092         groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2093         for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2094                 pairwise |=
2095                         rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2096
2097         if (sme->crypto.n_ciphers_pairwise > 0 &&
2098                         pairwise == RNDIS_WLAN_ALG_NONE) {
2099                 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2100                 return -ENOTSUPP;
2101         }
2102
2103         for (i = 0; i < sme->crypto.n_akm_suites; i++)
2104                 keymgmt |=
2105                         rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2106
2107         if (sme->crypto.n_akm_suites > 0 &&
2108                         keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2109                 netdev_err(usbdev->net, "Invalid keymgmt\n");
2110                 return -ENOTSUPP;
2111         }
2112
2113         netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2114                    sme->ssid, sme->bssid, chan,
2115                    sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2116                    groupwise, pairwise, keymgmt);
2117
2118         if (is_associated(usbdev))
2119                 disassociate(usbdev, false);
2120
2121         ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2122         if (ret < 0) {
2123                 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2124                            ret);
2125                 goto err_turn_radio_on;
2126         }
2127
2128         ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2129                                                                 keymgmt);
2130         if (ret < 0) {
2131                 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2132                            ret);
2133                 goto err_turn_radio_on;
2134         }
2135
2136         set_priv_filter(usbdev);
2137
2138         ret = set_encr_mode(usbdev, pairwise, groupwise);
2139         if (ret < 0) {
2140                 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2141                            ret);
2142                 goto err_turn_radio_on;
2143         }
2144
2145         if (channel) {
2146                 ret = set_channel(usbdev, chan);
2147                 if (ret < 0) {
2148                         netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2149                                    ret);
2150                         goto err_turn_radio_on;
2151                 }
2152         }
2153
2154         if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2155                 priv->encr_tx_key_index = sme->key_idx;
2156                 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2157                 if (ret < 0) {
2158                         netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2159                                    ret, sme->key_len, sme->key_idx);
2160                         goto err_turn_radio_on;
2161                 }
2162         }
2163
2164         if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2165                                 !is_broadcast_ether_addr(sme->bssid)) {
2166                 ret = set_bssid(usbdev, sme->bssid);
2167                 if (ret < 0) {
2168                         netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2169                                    ret);
2170                         goto err_turn_radio_on;
2171                 }
2172         } else
2173                 clear_bssid(usbdev);
2174
2175         length = sme->ssid_len;
2176         if (length > NDIS_802_11_LENGTH_SSID)
2177                 length = NDIS_802_11_LENGTH_SSID;
2178
2179         memset(&ssid, 0, sizeof(ssid));
2180         ssid.length = cpu_to_le32(length);
2181         memcpy(ssid.essid, sme->ssid, length);
2182
2183         /* Pause and purge rx queue, so we don't pass packets before
2184          * 'media connect'-indication.
2185          */
2186         usbnet_pause_rx(usbdev);
2187         usbnet_purge_paused_rxq(usbdev);
2188
2189         ret = set_essid(usbdev, &ssid);
2190         if (ret < 0)
2191                 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2192         return ret;
2193
2194 err_turn_radio_on:
2195         disassociate(usbdev, true);
2196
2197         return ret;
2198 }
2199
2200 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2201                                                                 u16 reason_code)
2202 {
2203         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2204         struct usbnet *usbdev = priv->usbdev;
2205
2206         netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2207
2208         priv->connected = false;
2209         memset(priv->bssid, 0, ETH_ALEN);
2210
2211         return deauthenticate(usbdev);
2212 }
2213
2214 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2215                                         struct cfg80211_ibss_params *params)
2216 {
2217         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2218         struct usbnet *usbdev = priv->usbdev;
2219         struct ieee80211_channel *channel = params->channel;
2220         struct ndis_80211_ssid ssid;
2221         enum nl80211_auth_type auth_type;
2222         int ret, alg, length, chan = -1;
2223
2224         if (channel)
2225                 chan = ieee80211_frequency_to_channel(channel->center_freq);
2226
2227         /* TODO: How to handle ad-hoc encryption?
2228          * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2229          * pre-shared for encryption (open/shared/wpa), is key set before
2230          * join_ibss? Which auth_type to use (not in params)? What about WPA?
2231          */
2232         if (params->privacy) {
2233                 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2234                 alg = RNDIS_WLAN_ALG_WEP;
2235         } else {
2236                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2237                 alg = RNDIS_WLAN_ALG_NONE;
2238         }
2239
2240         netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2241                    params->ssid, params->bssid, chan, params->privacy);
2242
2243         if (is_associated(usbdev))
2244                 disassociate(usbdev, false);
2245
2246         ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2247         if (ret < 0) {
2248                 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2249                            ret);
2250                 goto err_turn_radio_on;
2251         }
2252
2253         ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2254         if (ret < 0) {
2255                 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2256                            ret);
2257                 goto err_turn_radio_on;
2258         }
2259
2260         set_priv_filter(usbdev);
2261
2262         ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2263         if (ret < 0) {
2264                 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2265                            ret);
2266                 goto err_turn_radio_on;
2267         }
2268
2269         if (channel) {
2270                 ret = set_channel(usbdev, chan);
2271                 if (ret < 0) {
2272                         netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2273                                    ret);
2274                         goto err_turn_radio_on;
2275                 }
2276         }
2277
2278         if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2279                                 !is_broadcast_ether_addr(params->bssid)) {
2280                 ret = set_bssid(usbdev, params->bssid);
2281                 if (ret < 0) {
2282                         netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2283                                    ret);
2284                         goto err_turn_radio_on;
2285                 }
2286         } else
2287                 clear_bssid(usbdev);
2288
2289         length = params->ssid_len;
2290         if (length > NDIS_802_11_LENGTH_SSID)
2291                 length = NDIS_802_11_LENGTH_SSID;
2292
2293         memset(&ssid, 0, sizeof(ssid));
2294         ssid.length = cpu_to_le32(length);
2295         memcpy(ssid.essid, params->ssid, length);
2296
2297         /* Don't need to pause rx queue for ad-hoc. */
2298         usbnet_purge_paused_rxq(usbdev);
2299         usbnet_resume_rx(usbdev);
2300
2301         ret = set_essid(usbdev, &ssid);
2302         if (ret < 0)
2303                 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2304                            ret);
2305         return ret;
2306
2307 err_turn_radio_on:
2308         disassociate(usbdev, true);
2309
2310         return ret;
2311 }
2312
2313 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2314 {
2315         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2316         struct usbnet *usbdev = priv->usbdev;
2317
2318         netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2319
2320         priv->connected = false;
2321         memset(priv->bssid, 0, ETH_ALEN);
2322
2323         return deauthenticate(usbdev);
2324 }
2325
2326 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *netdev,
2327         struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2328 {
2329         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2330         struct usbnet *usbdev = priv->usbdev;
2331
2332         return set_channel(usbdev,
2333                         ieee80211_frequency_to_channel(chan->center_freq));
2334 }
2335
2336 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2337                          u8 key_index, bool pairwise, const u8 *mac_addr,
2338                          struct key_params *params)
2339 {
2340         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2341         struct usbnet *usbdev = priv->usbdev;
2342         __le32 flags;
2343
2344         netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2345                    __func__, key_index, mac_addr, params->cipher);
2346
2347         switch (params->cipher) {
2348         case WLAN_CIPHER_SUITE_WEP40:
2349         case WLAN_CIPHER_SUITE_WEP104:
2350                 return add_wep_key(usbdev, params->key, params->key_len,
2351                                                                 key_index);
2352         case WLAN_CIPHER_SUITE_TKIP:
2353         case WLAN_CIPHER_SUITE_CCMP:
2354                 flags = 0;
2355
2356                 if (params->seq && params->seq_len > 0)
2357                         flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2358                 if (mac_addr)
2359                         flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2360                                         NDIS_80211_ADDKEY_TRANSMIT_KEY;
2361
2362                 return add_wpa_key(usbdev, params->key, params->key_len,
2363                                 key_index, mac_addr, params->seq,
2364                                 params->seq_len, params->cipher, flags);
2365         default:
2366                 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2367                            __func__, params->cipher);
2368                 return -ENOTSUPP;
2369         }
2370 }
2371
2372 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2373                          u8 key_index, bool pairwise, const u8 *mac_addr)
2374 {
2375         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2376         struct usbnet *usbdev = priv->usbdev;
2377
2378         netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2379
2380         return remove_key(usbdev, key_index, mac_addr);
2381 }
2382
2383 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2384                                                                 u8 key_index)
2385 {
2386         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2387         struct usbnet *usbdev = priv->usbdev;
2388         struct rndis_wlan_encr_key key;
2389
2390         netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2391
2392         priv->encr_tx_key_index = key_index;
2393
2394         key = priv->encr_keys[key_index];
2395
2396         return add_wep_key(usbdev, key.material, key.len, key_index);
2397 }
2398
2399 static void rndis_fill_station_info(struct usbnet *usbdev,
2400                                                 struct station_info *sinfo)
2401 {
2402         __le32 linkspeed, rssi;
2403         int ret, len;
2404
2405         memset(sinfo, 0, sizeof(*sinfo));
2406
2407         len = sizeof(linkspeed);
2408         ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2409         if (ret == 0) {
2410                 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2411                 sinfo->filled |= STATION_INFO_TX_BITRATE;
2412         }
2413
2414         len = sizeof(rssi);
2415         ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2416         if (ret == 0) {
2417                 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2418                 sinfo->filled |= STATION_INFO_SIGNAL;
2419         }
2420 }
2421
2422 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2423                                         u8 *mac, struct station_info *sinfo)
2424 {
2425         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2426         struct usbnet *usbdev = priv->usbdev;
2427
2428         if (compare_ether_addr(priv->bssid, mac))
2429                 return -ENOENT;
2430
2431         rndis_fill_station_info(usbdev, sinfo);
2432
2433         return 0;
2434 }
2435
2436 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2437                                int idx, u8 *mac, struct station_info *sinfo)
2438 {
2439         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2440         struct usbnet *usbdev = priv->usbdev;
2441
2442         if (idx != 0)
2443                 return -ENOENT;
2444
2445         memcpy(mac, priv->bssid, ETH_ALEN);
2446
2447         rndis_fill_station_info(usbdev, sinfo);
2448
2449         return 0;
2450 }
2451
2452 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2453                                 struct cfg80211_pmksa *pmksa)
2454 {
2455         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2456         struct usbnet *usbdev = priv->usbdev;
2457         struct ndis_80211_pmkid *pmkids;
2458         u32 *tmp = (u32 *)pmksa->pmkid;
2459
2460         netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2461                         pmksa->bssid,
2462                         cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2463                         cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2464
2465         pmkids = get_device_pmkids(usbdev);
2466         if (IS_ERR(pmkids)) {
2467                 /* couldn't read PMKID cache from device */
2468                 return PTR_ERR(pmkids);
2469         }
2470
2471         pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2472         if (IS_ERR(pmkids)) {
2473                 /* not found, list full, etc */
2474                 return PTR_ERR(pmkids);
2475         }
2476
2477         return set_device_pmkids(usbdev, pmkids);
2478 }
2479
2480 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2481                                 struct cfg80211_pmksa *pmksa)
2482 {
2483         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2484         struct usbnet *usbdev = priv->usbdev;
2485         struct ndis_80211_pmkid *pmkids;
2486         u32 *tmp = (u32 *)pmksa->pmkid;
2487
2488         netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2489                         pmksa->bssid,
2490                         cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2491                         cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2492
2493         pmkids = get_device_pmkids(usbdev);
2494         if (IS_ERR(pmkids)) {
2495                 /* Couldn't read PMKID cache from device */
2496                 return PTR_ERR(pmkids);
2497         }
2498
2499         pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2500         if (IS_ERR(pmkids)) {
2501                 /* not found, etc */
2502                 return PTR_ERR(pmkids);
2503         }
2504
2505         return set_device_pmkids(usbdev, pmkids);
2506 }
2507
2508 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2509 {
2510         struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2511         struct usbnet *usbdev = priv->usbdev;
2512         struct ndis_80211_pmkid pmkid;
2513
2514         netdev_dbg(usbdev->net, "%s()\n", __func__);
2515
2516         memset(&pmkid, 0, sizeof(pmkid));
2517
2518         pmkid.length = cpu_to_le32(sizeof(pmkid));
2519         pmkid.bssid_info_count = cpu_to_le32(0);
2520
2521         return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid));
2522 }
2523
2524 static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2525                                            struct ndis_80211_assoc_info *info)
2526 {
2527         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2528         struct ieee80211_channel *channel;
2529         struct ndis_80211_conf config;
2530         struct ndis_80211_ssid ssid;
2531         s32 signal;
2532         u64 timestamp;
2533         u16 capability;
2534         u16 beacon_interval;
2535         __le32 rssi;
2536         u8 ie_buf[34];
2537         int len, ret, ie_len;
2538
2539         /* Get signal quality, in case of error use rssi=0 and ignore error. */
2540         len = sizeof(rssi);
2541         rssi = 0;
2542         ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2543         signal = level_to_qual(le32_to_cpu(rssi));
2544
2545         netdev_dbg(usbdev->net, "%s(): OID_802_11_RSSI -> %d, "
2546                    "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2547                    level_to_qual(le32_to_cpu(rssi)));
2548
2549         /* Get AP capabilities */
2550         if (info) {
2551                 capability = le16_to_cpu(info->resp_ie.capa);
2552         } else {
2553                 /* Set atleast ESS/IBSS capability */
2554                 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2555                                 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2556         }
2557
2558         /* Get channel and beacon interval */
2559         len = sizeof(config);
2560         ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2561         netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n",
2562                                 __func__, ret);
2563         if (ret >= 0) {
2564                 beacon_interval = le16_to_cpu(config.beacon_period);
2565                 channel = ieee80211_get_channel(priv->wdev.wiphy,
2566                                 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
2567                 if (!channel) {
2568                         netdev_warn(usbdev->net, "%s(): could not get channel."
2569                                                  "\n", __func__);
2570                         return;
2571                 }
2572         } else {
2573                 netdev_warn(usbdev->net, "%s(): could not get configuration.\n",
2574                                          __func__);
2575                 return;
2576         }
2577
2578         /* Get SSID, in case of error, use zero length SSID and ignore error. */
2579         len = sizeof(ssid);
2580         memset(&ssid, 0, sizeof(ssid));
2581         ret = rndis_query_oid(usbdev, OID_802_11_SSID, &ssid, &len);
2582         netdev_dbg(usbdev->net, "%s(): OID_802_11_SSID -> %d, len: %d, ssid: "
2583                                 "'%.32s'\n", __func__, ret,
2584                                 le32_to_cpu(ssid.length), ssid.essid);
2585
2586         if (le32_to_cpu(ssid.length) > 32)
2587                 ssid.length = cpu_to_le32(32);
2588
2589         ie_buf[0] = WLAN_EID_SSID;
2590         ie_buf[1] = le32_to_cpu(ssid.length);
2591         memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2592
2593         ie_len = le32_to_cpu(ssid.length) + 2;
2594
2595         /* no tsf */
2596         timestamp = 0;
2597
2598         netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2599                 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2600                 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2601                 bssid, (u32)timestamp, capability, beacon_interval, ie_len,
2602                 ssid.essid, signal);
2603
2604         cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2605                 timestamp, capability, beacon_interval, ie_buf, ie_len,
2606                 signal, GFP_KERNEL);
2607 }
2608
2609 /*
2610  * workers, indication handlers, device poller
2611  */
2612 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2613 {
2614         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2615         struct ndis_80211_assoc_info *info = NULL;
2616         u8 bssid[ETH_ALEN];
2617         int resp_ie_len, req_ie_len;
2618         u8 *req_ie, *resp_ie;
2619         int ret, offset;
2620         bool roamed = false;
2621         bool match_bss;
2622
2623         if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2624                 /* received media connect indication while connected, either
2625                  * device reassociated with same AP or roamed to new. */
2626                 roamed = true;
2627         }
2628
2629         req_ie_len = 0;
2630         resp_ie_len = 0;
2631         req_ie = NULL;
2632         resp_ie = NULL;
2633
2634         if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2635                 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2636                 if (!info) {
2637                         /* No memory? Try resume work later */
2638                         set_bit(WORK_LINK_UP, &priv->work_pending);
2639                         queue_work(priv->workqueue, &priv->work);
2640                         return;
2641                 }
2642
2643                 /* Get association info IEs from device. */
2644                 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2645                 if (!ret) {
2646                         req_ie_len = le32_to_cpu(info->req_ie_length);
2647                         if (req_ie_len > 0) {
2648                                 offset = le32_to_cpu(info->offset_req_ies);
2649
2650                                 if (offset > CONTROL_BUFFER_SIZE)
2651                                         offset = CONTROL_BUFFER_SIZE;
2652
2653                                 req_ie = (u8 *)info + offset;
2654
2655                                 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2656                                         req_ie_len =
2657                                                 CONTROL_BUFFER_SIZE - offset;
2658                         }
2659
2660                         resp_ie_len = le32_to_cpu(info->resp_ie_length);
2661                         if (resp_ie_len > 0) {
2662                                 offset = le32_to_cpu(info->offset_resp_ies);
2663
2664                                 if (offset > CONTROL_BUFFER_SIZE)
2665                                         offset = CONTROL_BUFFER_SIZE;
2666
2667                                 resp_ie = (u8 *)info + offset;
2668
2669                                 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2670                                         resp_ie_len =
2671                                                 CONTROL_BUFFER_SIZE - offset;
2672                         }
2673                 } else {
2674                         /* Since rndis_wlan_craft_connected_bss() might use info
2675                          * later and expects info to contain valid data if
2676                          * non-null, free info and set NULL here.
2677                          */
2678                         kfree(info);
2679                         info = NULL;
2680                 }
2681         } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2682                 return;
2683
2684         ret = get_bssid(usbdev, bssid);
2685         if (ret < 0)
2686                 memset(bssid, 0, sizeof(bssid));
2687
2688         netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2689                    bssid, roamed ? " roamed" : "");
2690
2691         /* Internal bss list in device should contain at least the currently
2692          * connected bss and we can get it to cfg80211 with
2693          * rndis_check_bssid_list().
2694          *
2695          * NDIS spec says: "If the device is associated, but the associated
2696          *  BSSID is not in its BSSID scan list, then the driver must add an
2697          *  entry for the BSSID at the end of the data that it returns in
2698          *  response to query of OID_802_11_BSSID_LIST."
2699          *
2700          * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2701          */
2702         match_bss = false;
2703         rndis_check_bssid_list(usbdev, bssid, &match_bss);
2704
2705         if (!is_zero_ether_addr(bssid) && !match_bss) {
2706                 /* Couldn't get bss from device, we need to manually craft bss
2707                  * for cfg80211.
2708                  */
2709                 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2710         }
2711
2712         if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2713                 if (!roamed)
2714                         cfg80211_connect_result(usbdev->net, bssid, req_ie,
2715                                                 req_ie_len, resp_ie,
2716                                                 resp_ie_len, 0, GFP_KERNEL);
2717                 else
2718                         cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len,
2719                                         resp_ie, resp_ie_len, GFP_KERNEL);
2720         } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2721                 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2722
2723         if (info != NULL)
2724                 kfree(info);
2725
2726         priv->connected = true;
2727         memcpy(priv->bssid, bssid, ETH_ALEN);
2728
2729         usbnet_resume_rx(usbdev);
2730         netif_carrier_on(usbdev->net);
2731 }
2732
2733 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2734 {
2735         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2736
2737         if (priv->connected) {
2738                 priv->connected = false;
2739                 memset(priv->bssid, 0, ETH_ALEN);
2740
2741                 deauthenticate(usbdev);
2742
2743                 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2744         }
2745
2746         netif_carrier_off(usbdev->net);
2747 }
2748
2749 static void rndis_wlan_worker(struct work_struct *work)
2750 {
2751         struct rndis_wlan_private *priv =
2752                 container_of(work, struct rndis_wlan_private, work);
2753         struct usbnet *usbdev = priv->usbdev;
2754
2755         if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2756                 rndis_wlan_do_link_up_work(usbdev);
2757
2758         if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2759                 rndis_wlan_do_link_down_work(usbdev);
2760
2761         if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2762                 set_multicast_list(usbdev);
2763 }
2764
2765 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2766 {
2767         struct usbnet *usbdev = netdev_priv(dev);
2768         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2769
2770         if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2771                 return;
2772
2773         set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2774         queue_work(priv->workqueue, &priv->work);
2775 }
2776
2777 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2778                                 struct ndis_80211_status_indication *indication,
2779                                 int len)
2780 {
2781         u8 *buf;
2782         const char *type;
2783         int flags, buflen, key_id;
2784         bool pairwise_error, group_error;
2785         struct ndis_80211_auth_request *auth_req;
2786         enum nl80211_key_type key_type;
2787
2788         /* must have at least one array entry */
2789         if (len < offsetof(struct ndis_80211_status_indication, u) +
2790                                 sizeof(struct ndis_80211_auth_request)) {
2791                 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2792                             len);
2793                 return;
2794         }
2795
2796         buf = (void *)&indication->u.auth_request[0];
2797         buflen = len - offsetof(struct ndis_80211_status_indication, u);
2798
2799         while (buflen >= sizeof(*auth_req)) {
2800                 auth_req = (void *)buf;
2801                 type = "unknown";
2802                 flags = le32_to_cpu(auth_req->flags);
2803                 pairwise_error = false;
2804                 group_error = false;
2805
2806                 if (flags & 0x1)
2807                         type = "reauth request";
2808                 if (flags & 0x2)
2809                         type = "key update request";
2810                 if (flags & 0x6) {
2811                         pairwise_error = true;
2812                         type = "pairwise_error";
2813                 }
2814                 if (flags & 0xe) {
2815                         group_error = true;
2816                         type = "group_error";
2817                 }
2818
2819                 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2820                             type, le32_to_cpu(auth_req->flags));
2821
2822                 if (pairwise_error) {
2823                         key_type = NL80211_KEYTYPE_PAIRWISE;
2824                         key_id = -1;
2825
2826                         cfg80211_michael_mic_failure(usbdev->net,
2827                                                         auth_req->bssid,
2828                                                         key_type, key_id, NULL,
2829                                                         GFP_KERNEL);
2830                 }
2831
2832                 if (group_error) {
2833                         key_type = NL80211_KEYTYPE_GROUP;
2834                         key_id = -1;
2835
2836                         cfg80211_michael_mic_failure(usbdev->net,
2837                                                         auth_req->bssid,
2838                                                         key_type, key_id, NULL,
2839                                                         GFP_KERNEL);
2840                 }
2841
2842                 buflen -= le32_to_cpu(auth_req->length);
2843                 buf += le32_to_cpu(auth_req->length);
2844         }
2845 }
2846
2847 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2848                                 struct ndis_80211_status_indication *indication,
2849                                 int len)
2850 {
2851         struct ndis_80211_pmkid_cand_list *cand_list;
2852         int list_len, expected_len, i;
2853
2854         if (len < offsetof(struct ndis_80211_status_indication, u) +
2855                                 sizeof(struct ndis_80211_pmkid_cand_list)) {
2856                 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2857                             len);
2858                 return;
2859         }
2860
2861         list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2862                         sizeof(struct ndis_80211_pmkid_candidate);
2863         expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2864                         offsetof(struct ndis_80211_status_indication, u);
2865
2866         if (len < expected_len) {
2867                 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2868                             len, expected_len);
2869                 return;
2870         }
2871
2872         cand_list = &indication->u.cand_list;
2873
2874         netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2875                     le32_to_cpu(cand_list->version),
2876                     le32_to_cpu(cand_list->num_candidates));
2877
2878         if (le32_to_cpu(cand_list->version) != 1)
2879                 return;
2880
2881         for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2882                 struct ndis_80211_pmkid_candidate *cand =
2883                                                 &cand_list->candidate_list[i];
2884
2885                 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, bssid: %pM\n",
2886                            i, le32_to_cpu(cand->flags), cand->bssid);
2887
2888 #if 0
2889                 struct iw_pmkid_cand pcand;
2890                 union iwreq_data wrqu;
2891
2892                 memset(&pcand, 0, sizeof(pcand));
2893                 if (le32_to_cpu(cand->flags) & 0x01)
2894                         pcand.flags |= IW_PMKID_CAND_PREAUTH;
2895                 pcand.index = i;
2896                 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2897
2898                 memset(&wrqu, 0, sizeof(wrqu));
2899                 wrqu.data.length = sizeof(pcand);
2900                 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2901                                                                 (u8 *)&pcand);
2902 #endif
2903         }
2904 }
2905
2906 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2907                         struct rndis_indicate *msg, int buflen)
2908 {
2909         struct ndis_80211_status_indication *indication;
2910         int len, offset;
2911
2912         offset = offsetof(struct rndis_indicate, status) +
2913                         le32_to_cpu(msg->offset);
2914         len = le32_to_cpu(msg->length);
2915
2916         if (len < 8) {
2917                 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
2918                             len);
2919                 return;
2920         }
2921
2922         if (offset + len > buflen) {
2923                 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
2924                             offset + len, buflen);
2925                 return;
2926         }
2927
2928         indication = (void *)((u8 *)msg + offset);
2929
2930         switch (le32_to_cpu(indication->status_type)) {
2931         case NDIS_80211_STATUSTYPE_RADIOSTATE:
2932                 netdev_info(usbdev->net, "radio state indication: %i\n",
2933                             le32_to_cpu(indication->u.radio_status));
2934                 return;
2935
2936         case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
2937                 netdev_info(usbdev->net, "media stream mode indication: %i\n",
2938                             le32_to_cpu(indication->u.media_stream_mode));
2939                 return;
2940
2941         case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2942                 rndis_wlan_auth_indication(usbdev, indication, len);
2943                 return;
2944
2945         case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2946                 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2947                 return;
2948
2949         default:
2950                 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
2951                             le32_to_cpu(indication->status_type));
2952         }
2953 }
2954
2955 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
2956 {
2957         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2958         struct rndis_indicate *msg = ind;
2959
2960         switch (msg->status) {
2961         case RNDIS_STATUS_MEDIA_CONNECT:
2962                 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2963                         /* OID_802_11_ADD_KEY causes sometimes extra
2964                          * "media connect" indications which confuses driver
2965                          * and userspace to think that device is
2966                          * roaming/reassociating when it isn't.
2967                          */
2968                         netdev_dbg(usbdev->net, "ignored OID_802_11_ADD_KEY triggered 'media connect'\n");
2969                         return;
2970                 }
2971
2972                 usbnet_pause_rx(usbdev);
2973
2974                 netdev_info(usbdev->net, "media connect\n");
2975
2976                 /* queue work to avoid recursive calls into rndis_command */
2977                 set_bit(WORK_LINK_UP, &priv->work_pending);
2978                 queue_work(priv->workqueue, &priv->work);
2979                 break;
2980
2981         case RNDIS_STATUS_MEDIA_DISCONNECT:
2982                 netdev_info(usbdev->net, "media disconnect\n");
2983
2984                 /* queue work to avoid recursive calls into rndis_command */
2985                 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2986                 queue_work(priv->workqueue, &priv->work);
2987                 break;
2988
2989         case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2990                 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2991                 break;
2992
2993         default:
2994                 netdev_info(usbdev->net, "indication: 0x%08x\n",
2995                             le32_to_cpu(msg->status));
2996                 break;
2997         }
2998 }
2999
3000 static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3001 {
3002         struct {
3003                 __le32  num_items;
3004                 __le32  items[8];
3005         } networks_supported;
3006         struct ndis_80211_capability *caps;
3007         u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3008         int len, retval, i, n;
3009         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3010
3011         /* determine supported modes */
3012         len = sizeof(networks_supported);
3013         retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
3014                                                 &networks_supported, &len);
3015         if (retval >= 0) {
3016                 n = le32_to_cpu(networks_supported.num_items);
3017                 if (n > 8)
3018                         n = 8;
3019                 for (i = 0; i < n; i++) {
3020                         switch (le32_to_cpu(networks_supported.items[i])) {
3021                         case NDIS_80211_TYPE_FREQ_HOP:
3022                         case NDIS_80211_TYPE_DIRECT_SEQ:
3023                                 priv->caps |= CAP_MODE_80211B;
3024                                 break;
3025                         case NDIS_80211_TYPE_OFDM_A:
3026                                 priv->caps |= CAP_MODE_80211A;
3027                                 break;
3028                         case NDIS_80211_TYPE_OFDM_G:
3029                                 priv->caps |= CAP_MODE_80211G;
3030                                 break;
3031                         }
3032                 }
3033         }
3034
3035         /* get device 802.11 capabilities, number of PMKIDs */
3036         caps = (struct ndis_80211_capability *)caps_buf;
3037         len = sizeof(caps_buf);
3038         retval = rndis_query_oid(usbdev, OID_802_11_CAPABILITY, caps, &len);
3039         if (retval >= 0) {
3040                 netdev_dbg(usbdev->net, "OID_802_11_CAPABILITY -> len %d, "
3041                                 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3042                                 le32_to_cpu(caps->length),
3043                                 le32_to_cpu(caps->version),
3044                                 le32_to_cpu(caps->num_pmkids),
3045                                 le32_to_cpu(caps->num_auth_encr_pair));
3046                 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3047         } else
3048                 wiphy->max_num_pmkids = 0;
3049
3050         return retval;
3051 }
3052
3053 #define DEVICE_POLLER_JIFFIES (HZ)
3054 static void rndis_device_poller(struct work_struct *work)
3055 {
3056         struct rndis_wlan_private *priv =
3057                 container_of(work, struct rndis_wlan_private,
3058                                                         dev_poller_work.work);
3059         struct usbnet *usbdev = priv->usbdev;
3060         __le32 rssi, tmp;
3061         int len, ret, j;
3062         int update_jiffies = DEVICE_POLLER_JIFFIES;
3063         void *buf;
3064
3065         /* Only check/do workaround when connected. Calling is_associated()
3066          * also polls device with rndis_command() and catches for media link
3067          * indications.
3068          */
3069         if (!is_associated(usbdev)) {
3070                 /* Workaround bad scanning in BCM4320a devices with active
3071                  * background scanning when not associated.
3072                  */
3073                 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3074                     !priv->scan_request) {
3075                         /* Get previous scan results */
3076                         rndis_check_bssid_list(usbdev, NULL, NULL);
3077
3078                         /* Initiate new scan */
3079                         rndis_start_bssid_list_scan(usbdev);
3080                 }
3081
3082                 goto end;
3083         }
3084
3085         len = sizeof(rssi);
3086         ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
3087         if (ret == 0)
3088                 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3089
3090         netdev_dbg(usbdev->net, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3091                    ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3092
3093         /* Workaround transfer stalls on poor quality links.
3094          * TODO: find right way to fix these stalls (as stalls do not happen
3095          * with ndiswrapper/windows driver). */
3096         if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3097                 /* Decrease stats worker interval to catch stalls.
3098                  * faster. Faster than 400-500ms causes packet loss,
3099                  * Slower doesn't catch stalls fast enough.
3100                  */
3101                 j = msecs_to_jiffies(priv->param_workaround_interval);
3102                 if (j > DEVICE_POLLER_JIFFIES)
3103                         j = DEVICE_POLLER_JIFFIES;
3104                 else if (j <= 0)
3105                         j = 1;
3106                 update_jiffies = j;
3107
3108                 /* Send scan OID. Use of both OIDs is required to get device
3109                  * working.
3110                  */
3111                 tmp = cpu_to_le32(1);
3112                 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
3113                                                                 sizeof(tmp));
3114
3115                 len = CONTROL_BUFFER_SIZE;
3116                 buf = kmalloc(len, GFP_KERNEL);
3117                 if (!buf)
3118                         goto end;
3119
3120                 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
3121                 kfree(buf);
3122         }
3123
3124 end:
3125         if (update_jiffies >= HZ)
3126                 update_jiffies = round_jiffies_relative(update_jiffies);
3127         else {
3128                 j = round_jiffies_relative(update_jiffies);
3129                 if (abs(j - update_jiffies) <= 10)
3130                         update_jiffies = j;
3131         }
3132
3133         queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3134                                                                 update_jiffies);
3135 }
3136
3137 /*
3138  * driver/device initialization
3139  */
3140 static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3141 {
3142         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3143
3144         priv->device_type = device_type;
3145
3146         priv->param_country[0] = modparam_country[0];
3147         priv->param_country[1] = modparam_country[1];
3148         priv->param_country[2] = 0;
3149         priv->param_frameburst   = modparam_frameburst;
3150         priv->param_afterburner  = modparam_afterburner;
3151         priv->param_power_save   = modparam_power_save;
3152         priv->param_power_output = modparam_power_output;
3153         priv->param_roamtrigger  = modparam_roamtrigger;
3154         priv->param_roamdelta    = modparam_roamdelta;
3155
3156         priv->param_country[0] = toupper(priv->param_country[0]);
3157         priv->param_country[1] = toupper(priv->param_country[1]);
3158         /* doesn't support EU as country code, use FI instead */
3159         if (!strcmp(priv->param_country, "EU"))
3160                 strcpy(priv->param_country, "FI");
3161
3162         if (priv->param_power_save < 0)
3163                 priv->param_power_save = 0;
3164         else if (priv->param_power_save > 2)
3165                 priv->param_power_save = 2;
3166
3167         if (priv->param_power_output < 0)
3168                 priv->param_power_output = 0;
3169         else if (priv->param_power_output > 3)
3170                 priv->param_power_output = 3;
3171
3172         if (priv->param_roamtrigger < -80)
3173                 priv->param_roamtrigger = -80;
3174         else if (priv->param_roamtrigger > -60)
3175                 priv->param_roamtrigger = -60;
3176
3177         if (priv->param_roamdelta < 0)
3178                 priv->param_roamdelta = 0;
3179         else if (priv->param_roamdelta > 2)
3180                 priv->param_roamdelta = 2;
3181
3182         if (modparam_workaround_interval < 0)
3183                 priv->param_workaround_interval = 500;
3184         else
3185                 priv->param_workaround_interval = modparam_workaround_interval;
3186 }
3187
3188 static int unknown_early_init(struct usbnet *usbdev)
3189 {
3190         /* copy module parameters for unknown so that iwconfig reports txpower
3191          * and workaround parameter is copied to private structure correctly.
3192          */
3193         rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3194
3195         /* This is unknown device, so do not try set configuration parameters.
3196          */
3197
3198         return 0;
3199 }
3200
3201 static int bcm4320a_early_init(struct usbnet *usbdev)
3202 {
3203         /* copy module parameters for bcm4320a so that iwconfig reports txpower
3204          * and workaround parameter is copied to private structure correctly.
3205          */
3206         rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3207
3208         /* bcm4320a doesn't handle configuration parameters well. Try
3209          * set any and you get partially zeroed mac and broken device.
3210          */
3211
3212         return 0;
3213 }
3214
3215 static int bcm4320b_early_init(struct usbnet *usbdev)
3216 {
3217         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3218         char buf[8];
3219
3220         rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3221
3222         /* Early initialization settings, setting these won't have effect
3223          * if called after generic_rndis_bind().
3224          */
3225
3226         rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3227         rndis_set_config_parameter_str(usbdev, "FrameBursting",
3228                                         priv->param_frameburst ? "1" : "0");
3229         rndis_set_config_parameter_str(usbdev, "Afterburner",
3230                                         priv->param_afterburner ? "1" : "0");
3231         sprintf(buf, "%d", priv->param_power_save);
3232         rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3233         sprintf(buf, "%d", priv->param_power_output);
3234         rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3235         sprintf(buf, "%d", priv->param_roamtrigger);
3236         rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3237         sprintf(buf, "%d", priv->param_roamdelta);
3238         rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3239
3240         return 0;
3241 }
3242
3243 /* same as rndis_netdev_ops but with local multicast handler */
3244 static const struct net_device_ops rndis_wlan_netdev_ops = {
3245         .ndo_open               = usbnet_open,
3246         .ndo_stop               = usbnet_stop,
3247         .ndo_start_xmit         = usbnet_start_xmit,
3248         .ndo_tx_timeout         = usbnet_tx_timeout,
3249         .ndo_set_mac_address    = eth_mac_addr,
3250         .ndo_validate_addr      = eth_validate_addr,
3251         .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
3252 };
3253
3254 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3255 {
3256         struct wiphy *wiphy;
3257         struct rndis_wlan_private *priv;
3258         int retval, len;
3259         __le32 tmp;
3260
3261         /* allocate wiphy and rndis private data
3262          * NOTE: We only support a single virtual interface, so wiphy
3263          * and wireless_dev are somewhat synonymous for this device.
3264          */
3265         wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3266         if (!wiphy)
3267                 return -ENOMEM;
3268
3269         priv = wiphy_priv(wiphy);
3270         usbdev->net->ieee80211_ptr = &priv->wdev;
3271         priv->wdev.wiphy = wiphy;
3272         priv->wdev.iftype = NL80211_IFTYPE_STATION;
3273
3274         /* These have to be initialized before calling generic_rndis_bind().
3275          * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3276          */
3277         usbdev->driver_priv = priv;
3278         priv->usbdev = usbdev;
3279
3280         mutex_init(&priv->command_lock);
3281
3282         /* because rndis_command() sleeps we need to use workqueue */
3283         priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3284         INIT_WORK(&priv->work, rndis_wlan_worker);
3285         INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3286         INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3287
3288         /* try bind rndis_host */
3289         retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3290         if (retval < 0)
3291                 goto fail;
3292
3293         /* generic_rndis_bind set packet filter to multicast_all+
3294          * promisc mode which doesn't work well for our devices (device
3295          * picks up rssi to closest station instead of to access point).
3296          *
3297          * rndis_host wants to avoid all OID as much as possible
3298          * so do promisc/multicast handling in rndis_wlan.
3299          */
3300         usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3301
3302         tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
3303         retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
3304                                                                 sizeof(tmp));
3305
3306         len = sizeof(tmp);
3307         retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
3308                                                                 &len);
3309         priv->multicast_size = le32_to_cpu(tmp);
3310         if (retval < 0 || priv->multicast_size < 0)
3311                 priv->multicast_size = 0;
3312         if (priv->multicast_size > 0)
3313                 usbdev->net->flags |= IFF_MULTICAST;
3314         else
3315                 usbdev->net->flags &= ~IFF_MULTICAST;
3316
3317         /* fill-out wiphy structure and register w/ cfg80211 */
3318         memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3319         wiphy->privid = rndis_wiphy_privid;
3320         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3321                                         | BIT(NL80211_IFTYPE_ADHOC);
3322         wiphy->max_scan_ssids = 1;
3323
3324         /* TODO: fill-out band/encr information based on priv->caps */
3325         rndis_wlan_get_caps(usbdev, wiphy);
3326
3327         memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3328         memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3329         priv->band.channels = priv->channels;
3330         priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3331         priv->band.bitrates = priv->rates;
3332         priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3333         wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3334         wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3335
3336         memcpy(priv->cipher_suites, rndis_cipher_suites,
3337                                                 sizeof(rndis_cipher_suites));
3338         wiphy->cipher_suites = priv->cipher_suites;
3339         wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3340
3341         set_wiphy_dev(wiphy, &usbdev->udev->dev);
3342
3343         if (wiphy_register(wiphy)) {
3344                 retval = -ENODEV;
3345                 goto fail;
3346         }
3347
3348         set_default_iw_params(usbdev);
3349
3350         /* set default rts/frag */
3351         rndis_set_wiphy_params(wiphy,
3352                         WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3353
3354         /* turn radio on */
3355         priv->radio_on = true;
3356         disassociate(usbdev, true);
3357         netif_carrier_off(usbdev->net);
3358
3359         return 0;
3360
3361 fail:
3362         cancel_delayed_work_sync(&priv->dev_poller_work);
3363         cancel_delayed_work_sync(&priv->scan_work);
3364         cancel_work_sync(&priv->work);
3365         flush_workqueue(priv->workqueue);
3366         destroy_workqueue(priv->workqueue);
3367
3368         wiphy_free(wiphy);
3369         return retval;
3370 }
3371
3372 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3373 {
3374         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3375
3376         /* turn radio off */
3377         disassociate(usbdev, false);
3378
3379         cancel_delayed_work_sync(&priv->dev_poller_work);
3380         cancel_delayed_work_sync(&priv->scan_work);
3381         cancel_work_sync(&priv->work);
3382         flush_workqueue(priv->workqueue);
3383         destroy_workqueue(priv->workqueue);
3384
3385         rndis_unbind(usbdev, intf);
3386
3387         wiphy_unregister(priv->wdev.wiphy);
3388         wiphy_free(priv->wdev.wiphy);
3389 }
3390
3391 static int rndis_wlan_reset(struct usbnet *usbdev)
3392 {
3393         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3394         int retval;
3395
3396         netdev_dbg(usbdev->net, "%s()\n", __func__);
3397
3398         retval = rndis_reset(usbdev);
3399         if (retval)
3400                 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3401
3402         /* rndis_reset cleared multicast list, so restore here.
3403            (set_multicast_list() also turns on current packet filter) */
3404         set_multicast_list(usbdev);
3405
3406         queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3407                 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3408
3409         return deauthenticate(usbdev);
3410 }
3411
3412 static int rndis_wlan_stop(struct usbnet *usbdev)
3413 {
3414         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3415         int retval;
3416         __le32 filter;
3417
3418         netdev_dbg(usbdev->net, "%s()\n", __func__);
3419
3420         retval = disassociate(usbdev, false);
3421
3422         priv->work_pending = 0;
3423         cancel_delayed_work_sync(&priv->dev_poller_work);
3424         cancel_delayed_work_sync(&priv->scan_work);
3425         cancel_work_sync(&priv->work);
3426         flush_workqueue(priv->workqueue);
3427
3428         if (priv->scan_request) {
3429                 cfg80211_scan_done(priv->scan_request, true);
3430                 priv->scan_request = NULL;
3431         }
3432
3433         /* Set current packet filter zero to block receiving data packets from
3434            device. */
3435         filter = 0;
3436         rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3437                                                                 sizeof(filter));
3438
3439         return retval;
3440 }
3441
3442 static const struct driver_info bcm4320b_info = {
3443         .description =  "Wireless RNDIS device, BCM4320b based",
3444         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3445                                 FLAG_AVOID_UNLINK_URBS,
3446         .bind =         rndis_wlan_bind,
3447         .unbind =       rndis_wlan_unbind,
3448         .status =       rndis_status,
3449         .rx_fixup =     rndis_rx_fixup,
3450         .tx_fixup =     rndis_tx_fixup,
3451         .reset =        rndis_wlan_reset,
3452         .stop =         rndis_wlan_stop,
3453         .early_init =   bcm4320b_early_init,
3454         .indication =   rndis_wlan_indication,
3455 };
3456
3457 static const struct driver_info bcm4320a_info = {
3458         .description =  "Wireless RNDIS device, BCM4320a based",
3459         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3460                                 FLAG_AVOID_UNLINK_URBS,
3461         .bind =         rndis_wlan_bind,
3462         .unbind =       rndis_wlan_unbind,
3463         .status =       rndis_status,
3464         .rx_fixup =     rndis_rx_fixup,
3465         .tx_fixup =     rndis_tx_fixup,
3466         .reset =        rndis_wlan_reset,
3467         .stop =         rndis_wlan_stop,
3468         .early_init =   bcm4320a_early_init,
3469         .indication =   rndis_wlan_indication,
3470 };
3471
3472 static const struct driver_info rndis_wlan_info = {
3473         .description =  "Wireless RNDIS device",
3474         .flags =        FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3475                                 FLAG_AVOID_UNLINK_URBS,
3476         .bind =         rndis_wlan_bind,
3477         .unbind =       rndis_wlan_unbind,
3478         .status =       rndis_status,
3479         .rx_fixup =     rndis_rx_fixup,
3480         .tx_fixup =     rndis_tx_fixup,
3481         .reset =        rndis_wlan_reset,
3482         .stop =         rndis_wlan_stop,
3483         .early_init =   unknown_early_init,
3484         .indication =   rndis_wlan_indication,
3485 };
3486
3487 /*-------------------------------------------------------------------------*/
3488
3489 static const struct usb_device_id products [] = {
3490 #define RNDIS_MASTER_INTERFACE \
3491         .bInterfaceClass        = USB_CLASS_COMM, \
3492         .bInterfaceSubClass     = 2 /* ACM */, \
3493         .bInterfaceProtocol     = 0x0ff
3494
3495 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3496  * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3497  */
3498 {
3499         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3500                           | USB_DEVICE_ID_MATCH_DEVICE,
3501         .idVendor               = 0x0411,
3502         .idProduct              = 0x00bc,       /* Buffalo WLI-U2-KG125S */
3503         RNDIS_MASTER_INTERFACE,
3504         .driver_info            = (unsigned long) &bcm4320b_info,
3505 }, {
3506         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3507                           | USB_DEVICE_ID_MATCH_DEVICE,
3508         .idVendor               = 0x0baf,
3509         .idProduct              = 0x011b,       /* U.S. Robotics USR5421 */
3510         RNDIS_MASTER_INTERFACE,
3511         .driver_info            = (unsigned long) &bcm4320b_info,
3512 }, {
3513         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3514                           | USB_DEVICE_ID_MATCH_DEVICE,
3515         .idVendor               = 0x050d,
3516         .idProduct              = 0x011b,       /* Belkin F5D7051 */
3517         RNDIS_MASTER_INTERFACE,
3518         .driver_info            = (unsigned long) &bcm4320b_info,
3519 }, {
3520         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3521                           | USB_DEVICE_ID_MATCH_DEVICE,
3522         .idVendor               = 0x1799,       /* Belkin has two vendor ids */
3523         .idProduct              = 0x011b,       /* Belkin F5D7051 */
3524         RNDIS_MASTER_INTERFACE,
3525         .driver_info            = (unsigned long) &bcm4320b_info,
3526 }, {
3527         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3528                           | USB_DEVICE_ID_MATCH_DEVICE,
3529         .idVendor               = 0x13b1,
3530         .idProduct              = 0x0014,       /* Linksys WUSB54GSv2 */
3531         RNDIS_MASTER_INTERFACE,
3532         .driver_info            = (unsigned long) &bcm4320b_info,
3533 }, {
3534         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3535                           | USB_DEVICE_ID_MATCH_DEVICE,
3536         .idVendor               = 0x13b1,
3537         .idProduct              = 0x0026,       /* Linksys WUSB54GSC */
3538         RNDIS_MASTER_INTERFACE,
3539         .driver_info            = (unsigned long) &bcm4320b_info,
3540 }, {
3541         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3542                           | USB_DEVICE_ID_MATCH_DEVICE,
3543         .idVendor               = 0x0b05,
3544         .idProduct              = 0x1717,       /* Asus WL169gE */
3545         RNDIS_MASTER_INTERFACE,
3546         .driver_info            = (unsigned long) &bcm4320b_info,
3547 }, {
3548         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3549                           | USB_DEVICE_ID_MATCH_DEVICE,
3550         .idVendor               = 0x0a5c,
3551         .idProduct              = 0xd11b,       /* Eminent EM4045 */
3552         RNDIS_MASTER_INTERFACE,
3553         .driver_info            = (unsigned long) &bcm4320b_info,
3554 }, {
3555         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3556                           | USB_DEVICE_ID_MATCH_DEVICE,
3557         .idVendor               = 0x1690,
3558         .idProduct              = 0x0715,       /* BT Voyager 1055 */
3559         RNDIS_MASTER_INTERFACE,
3560         .driver_info            = (unsigned long) &bcm4320b_info,
3561 },
3562 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3563  * parameters available, hardware probably contain older firmware version with
3564  * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3565  */
3566 {
3567         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3568                           | USB_DEVICE_ID_MATCH_DEVICE,
3569         .idVendor               = 0x13b1,
3570         .idProduct              = 0x000e,       /* Linksys WUSB54GSv1 */
3571         RNDIS_MASTER_INTERFACE,
3572         .driver_info            = (unsigned long) &bcm4320a_info,
3573 }, {
3574         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3575                           | USB_DEVICE_ID_MATCH_DEVICE,
3576         .idVendor               = 0x0baf,
3577         .idProduct              = 0x0111,       /* U.S. Robotics USR5420 */
3578         RNDIS_MASTER_INTERFACE,
3579         .driver_info            = (unsigned long) &bcm4320a_info,
3580 }, {
3581         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
3582                           | USB_DEVICE_ID_MATCH_DEVICE,
3583         .idVendor               = 0x0411,
3584         .idProduct              = 0x004b,       /* BUFFALO WLI-USB-G54 */
3585         RNDIS_MASTER_INTERFACE,
3586         .driver_info            = (unsigned long) &bcm4320a_info,
3587 },
3588 /* Generic Wireless RNDIS devices that we don't have exact
3589  * idVendor/idProduct/chip yet.
3590  */
3591 {
3592         /* RNDIS is MSFT's un-official variant of CDC ACM */
3593         USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3594         .driver_info = (unsigned long) &rndis_wlan_info,
3595 }, {
3596         /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3597         USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3598         .driver_info = (unsigned long) &rndis_wlan_info,
3599 },
3600         { },            // END
3601 };
3602 MODULE_DEVICE_TABLE(usb, products);
3603
3604 static struct usb_driver rndis_wlan_driver = {
3605         .name =         "rndis_wlan",
3606         .id_table =     products,
3607         .probe =        usbnet_probe,
3608         .disconnect =   usbnet_disconnect,
3609         .suspend =      usbnet_suspend,
3610         .resume =       usbnet_resume,
3611 };
3612
3613 static int __init rndis_wlan_init(void)
3614 {
3615         return usb_register(&rndis_wlan_driver);
3616 }
3617 module_init(rndis_wlan_init);
3618
3619 static void __exit rndis_wlan_exit(void)
3620 {
3621         usb_deregister(&rndis_wlan_driver);
3622 }
3623 module_exit(rndis_wlan_exit);
3624
3625 MODULE_AUTHOR("Bjorge Dijkstra");
3626 MODULE_AUTHOR("Jussi Kivilinna");
3627 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3628 MODULE_LICENSE("GPL");
3629