2 * Driver for RNDIS based wireless USB devices.
4 * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
5 * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
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.
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.
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
21 * Portions of this file are based on NDISwrapper project,
22 * Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
23 * http://ndiswrapper.sourceforge.net/
26 // #define DEBUG // error path messages, extra info
27 // #define VERBOSE // more; success messages
29 #include <linux/module.h>
30 #include <linux/init.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/ethtool.h>
34 #include <linux/workqueue.h>
35 #include <linux/mutex.h>
36 #include <linux/mii.h>
37 #include <linux/usb.h>
38 #include <linux/usb/cdc.h>
39 #include <linux/wireless.h>
40 #include <linux/ieee80211.h>
41 #include <linux/if_arp.h>
42 #include <linux/ctype.h>
43 #include <linux/spinlock.h>
44 #include <net/iw_handler.h>
45 #include <net/cfg80211.h>
46 #include <linux/usb/usbnet.h>
47 #include <linux/usb/rndis_host.h>
50 /* NOTE: All these are settings for Broadcom chipset */
51 static char modparam_country[4] = "EU";
52 module_param_string(country, modparam_country, 4, 0444);
53 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
55 static int modparam_frameburst = 1;
56 module_param_named(frameburst, modparam_frameburst, int, 0444);
57 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
59 static int modparam_afterburner = 0;
60 module_param_named(afterburner, modparam_afterburner, int, 0444);
61 MODULE_PARM_DESC(afterburner,
62 "enable afterburner aka '125 High Speed Mode' (default: off)");
64 static int modparam_power_save = 0;
65 module_param_named(power_save, modparam_power_save, int, 0444);
66 MODULE_PARM_DESC(power_save,
67 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
69 static int modparam_power_output = 3;
70 module_param_named(power_output, modparam_power_output, int, 0444);
71 MODULE_PARM_DESC(power_output,
72 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
74 static int modparam_roamtrigger = -70;
75 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
76 MODULE_PARM_DESC(roamtrigger,
77 "set roaming dBm trigger: -80=optimize for distance, "
78 "-60=bandwidth (default: -70)");
80 static int modparam_roamdelta = 1;
81 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
82 MODULE_PARM_DESC(roamdelta,
83 "set roaming tendency: 0=aggressive, 1=moderate, "
84 "2=conservative (default: moderate)");
86 static int modparam_workaround_interval = 500;
87 module_param_named(workaround_interval, modparam_workaround_interval,
89 MODULE_PARM_DESC(workaround_interval,
90 "set stall workaround interval in msecs (default: 500)");
93 /* various RNDIS OID defs */
94 #define OID_GEN_LINK_SPEED cpu_to_le32(0x00010107)
95 #define OID_GEN_RNDIS_CONFIG_PARAMETER cpu_to_le32(0x0001021b)
97 #define OID_GEN_XMIT_OK cpu_to_le32(0x00020101)
98 #define OID_GEN_RCV_OK cpu_to_le32(0x00020102)
99 #define OID_GEN_XMIT_ERROR cpu_to_le32(0x00020103)
100 #define OID_GEN_RCV_ERROR cpu_to_le32(0x00020104)
101 #define OID_GEN_RCV_NO_BUFFER cpu_to_le32(0x00020105)
103 #define OID_802_3_CURRENT_ADDRESS cpu_to_le32(0x01010102)
104 #define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103)
105 #define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104)
107 #define OID_802_11_BSSID cpu_to_le32(0x0d010101)
108 #define OID_802_11_SSID cpu_to_le32(0x0d010102)
109 #define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108)
110 #define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113)
111 #define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114)
112 #define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115)
113 #define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118)
114 #define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119)
115 #define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a)
116 #define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b)
117 #define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d)
118 #define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e)
119 #define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f)
120 #define OID_802_11_PMKID cpu_to_le32(0x0d010123)
121 #define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
122 #define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
123 #define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
124 #define OID_802_11_RSSI cpu_to_le32(0x0d010206)
125 #define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
126 #define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
127 #define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
128 #define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
129 #define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
130 #define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
133 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
134 #define WL_NOISE -96 /* typical noise level in dBm */
135 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
138 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
139 * based on wireless rndis) has default txpower of 13dBm.
140 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
141 * 100% : 20 mW ~ 13dBm
142 * 75% : 15 mW ~ 12dBm
143 * 50% : 10 mW ~ 10dBm
146 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
147 #define BCM4320_DEFAULT_TXPOWER_DBM_75 12
148 #define BCM4320_DEFAULT_TXPOWER_DBM_50 10
149 #define BCM4320_DEFAULT_TXPOWER_DBM_25 7
152 /* codes for "status" field of completion messages */
153 #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
154 #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
157 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
158 * slightly modified for datatype endianess, etc
160 #define NDIS_802_11_LENGTH_SSID 32
161 #define NDIS_802_11_LENGTH_RATES 8
162 #define NDIS_802_11_LENGTH_RATES_EX 16
164 enum ndis_80211_net_type {
165 NDIS_80211_TYPE_FREQ_HOP,
166 NDIS_80211_TYPE_DIRECT_SEQ,
167 NDIS_80211_TYPE_OFDM_A,
168 NDIS_80211_TYPE_OFDM_G
171 enum ndis_80211_net_infra {
172 NDIS_80211_INFRA_ADHOC,
173 NDIS_80211_INFRA_INFRA,
174 NDIS_80211_INFRA_AUTO_UNKNOWN
177 enum ndis_80211_auth_mode {
178 NDIS_80211_AUTH_OPEN,
179 NDIS_80211_AUTH_SHARED,
180 NDIS_80211_AUTH_AUTO_SWITCH,
182 NDIS_80211_AUTH_WPA_PSK,
183 NDIS_80211_AUTH_WPA_NONE,
184 NDIS_80211_AUTH_WPA2,
185 NDIS_80211_AUTH_WPA2_PSK
188 enum ndis_80211_encr_status {
189 NDIS_80211_ENCR_WEP_ENABLED,
190 NDIS_80211_ENCR_DISABLED,
191 NDIS_80211_ENCR_WEP_KEY_ABSENT,
192 NDIS_80211_ENCR_NOT_SUPPORTED,
193 NDIS_80211_ENCR_TKIP_ENABLED,
194 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
195 NDIS_80211_ENCR_CCMP_ENABLED,
196 NDIS_80211_ENCR_CCMP_KEY_ABSENT
199 enum ndis_80211_priv_filter {
200 NDIS_80211_PRIV_ACCEPT_ALL,
201 NDIS_80211_PRIV_8021X_WEP
204 enum ndis_80211_status_type {
205 NDIS_80211_STATUSTYPE_AUTHENTICATION,
206 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
207 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
208 NDIS_80211_STATUSTYPE_RADIOSTATE,
211 enum ndis_80211_media_stream_mode {
212 NDIS_80211_MEDIA_STREAM_OFF,
213 NDIS_80211_MEDIA_STREAM_ON
216 enum ndis_80211_radio_status {
217 NDIS_80211_RADIO_STATUS_ON,
218 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
219 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
222 enum ndis_80211_addkey_bits {
223 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
224 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
225 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
226 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
229 enum ndis_80211_addwep_bits {
230 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
231 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
234 struct ndis_80211_auth_request {
239 } __attribute__((packed));
241 struct ndis_80211_pmkid_candidate {
245 } __attribute__((packed));
247 struct ndis_80211_pmkid_cand_list {
249 __le32 num_candidates;
250 struct ndis_80211_pmkid_candidate candidate_list[0];
251 } __attribute__((packed));
253 struct ndis_80211_status_indication {
256 enum ndis_80211_media_stream_mode media_stream_mode;
257 enum ndis_80211_radio_status radio_status;
258 struct ndis_80211_auth_request auth_request[0];
259 struct ndis_80211_pmkid_cand_list cand_list;
261 } __attribute__((packed));
263 struct ndis_80211_ssid {
265 u8 essid[NDIS_802_11_LENGTH_SSID];
266 } __attribute__((packed));
268 struct ndis_80211_conf_freq_hop {
273 } __attribute__((packed));
275 struct ndis_80211_conf {
277 __le32 beacon_period;
280 struct ndis_80211_conf_freq_hop fh_config;
281 } __attribute__((packed));
283 struct ndis_80211_bssid_ex {
287 struct ndis_80211_ssid ssid;
291 struct ndis_80211_conf config;
293 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
296 } __attribute__((packed));
298 struct ndis_80211_bssid_list_ex {
300 struct ndis_80211_bssid_ex bssid[0];
301 } __attribute__((packed));
303 struct ndis_80211_fixed_ies {
305 __le16 beacon_interval;
307 } __attribute__((packed));
309 struct ndis_80211_wep_key {
314 } __attribute__((packed));
316 struct ndis_80211_key {
324 } __attribute__((packed));
326 struct ndis_80211_remove_key {
331 } __attribute__((packed));
333 struct ndis_config_param {
339 } __attribute__((packed));
341 struct ndis_80211_assoc_info {
346 __le16 listen_interval;
347 u8 cur_ap_address[6];
349 __le32 req_ie_length;
350 __le32 offset_req_ies;
357 __le32 resp_ie_length;
358 __le32 offset_resp_ies;
359 } __attribute__((packed));
364 #define NET_TYPE_11FB 0
366 #define CAP_MODE_80211A 1
367 #define CAP_MODE_80211B 2
368 #define CAP_MODE_80211G 4
369 #define CAP_MODE_MASK 7
371 #define WORK_LINK_UP (1<<0)
372 #define WORK_LINK_DOWN (1<<1)
373 #define WORK_SET_MULTICAST_LIST (1<<2)
375 #define RNDIS_WLAN_ALG_NONE 0
376 #define RNDIS_WLAN_ALG_WEP (1<<0)
377 #define RNDIS_WLAN_ALG_TKIP (1<<1)
378 #define RNDIS_WLAN_ALG_CCMP (1<<2)
380 #define RNDIS_WLAN_KEY_MGMT_NONE 0
381 #define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
382 #define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
384 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
386 static const struct ieee80211_channel rndis_channels[] = {
387 { .center_freq = 2412 },
388 { .center_freq = 2417 },
389 { .center_freq = 2422 },
390 { .center_freq = 2427 },
391 { .center_freq = 2432 },
392 { .center_freq = 2437 },
393 { .center_freq = 2442 },
394 { .center_freq = 2447 },
395 { .center_freq = 2452 },
396 { .center_freq = 2457 },
397 { .center_freq = 2462 },
398 { .center_freq = 2467 },
399 { .center_freq = 2472 },
400 { .center_freq = 2484 },
403 static const struct ieee80211_rate rndis_rates[] = {
405 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
406 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
407 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
418 static const u32 rndis_cipher_suites[] = {
419 WLAN_CIPHER_SUITE_WEP40,
420 WLAN_CIPHER_SUITE_WEP104,
421 WLAN_CIPHER_SUITE_TKIP,
422 WLAN_CIPHER_SUITE_CCMP,
425 struct rndis_wlan_encr_key {
434 /* RNDIS device private data */
435 struct rndis_wlan_private {
436 struct usbnet *usbdev;
438 struct wireless_dev wdev;
440 struct cfg80211_scan_request *scan_request;
442 struct workqueue_struct *workqueue;
443 struct delayed_work stats_work;
444 struct delayed_work scan_work;
445 struct work_struct work;
446 struct mutex command_lock;
447 unsigned long work_pending;
450 struct ieee80211_supported_band band;
451 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
452 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
453 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
458 /* module parameters */
459 char param_country[4];
460 int param_frameburst;
461 int param_afterburner;
462 int param_power_save;
463 int param_power_output;
464 int param_roamtrigger;
466 u32 param_workaround_interval;
473 struct ndis_80211_ssid essid;
474 __le32 current_command_oid;
476 /* encryption stuff */
477 int encr_tx_key_index;
478 struct rndis_wlan_encr_key encr_keys[4];
479 enum nl80211_auth_type wpa_auth_type;
485 int wpa_cipher_group;
487 u8 command_buffer[COMMAND_BUFFER_SIZE];
493 static int rndis_change_virtual_intf(struct wiphy *wiphy,
494 struct net_device *dev,
495 enum nl80211_iftype type, u32 *flags,
496 struct vif_params *params);
498 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
499 struct cfg80211_scan_request *request);
501 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
503 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
505 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
507 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
508 struct cfg80211_connect_params *sme);
510 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
513 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
514 struct cfg80211_ibss_params *params);
516 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
518 static int rndis_set_channel(struct wiphy *wiphy,
519 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
521 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
522 u8 key_index, const u8 *mac_addr,
523 struct key_params *params);
525 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
526 u8 key_index, const u8 *mac_addr);
528 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
531 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
532 u8 *mac, struct station_info *sinfo);
534 static struct cfg80211_ops rndis_config_ops = {
535 .change_virtual_intf = rndis_change_virtual_intf,
537 .set_wiphy_params = rndis_set_wiphy_params,
538 .set_tx_power = rndis_set_tx_power,
539 .get_tx_power = rndis_get_tx_power,
540 .connect = rndis_connect,
541 .disconnect = rndis_disconnect,
542 .join_ibss = rndis_join_ibss,
543 .leave_ibss = rndis_leave_ibss,
544 .set_channel = rndis_set_channel,
545 .add_key = rndis_add_key,
546 .del_key = rndis_del_key,
547 .set_default_key = rndis_set_default_key,
548 .get_station = rndis_get_station,
551 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
554 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
556 return (struct rndis_wlan_private *)dev->driver_priv;
560 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
562 switch (priv->param_power_output) {
565 return BCM4320_DEFAULT_TXPOWER_DBM_100;
567 return BCM4320_DEFAULT_TXPOWER_DBM_75;
569 return BCM4320_DEFAULT_TXPOWER_DBM_50;
571 return BCM4320_DEFAULT_TXPOWER_DBM_25;
576 static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
578 int cipher = priv->encr_keys[idx].cipher;
580 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
581 cipher == WLAN_CIPHER_SUITE_TKIP);
585 static int rndis_cipher_to_alg(u32 cipher)
589 return RNDIS_WLAN_ALG_NONE;
590 case WLAN_CIPHER_SUITE_WEP40:
591 case WLAN_CIPHER_SUITE_WEP104:
592 return RNDIS_WLAN_ALG_WEP;
593 case WLAN_CIPHER_SUITE_TKIP:
594 return RNDIS_WLAN_ALG_TKIP;
595 case WLAN_CIPHER_SUITE_CCMP:
596 return RNDIS_WLAN_ALG_CCMP;
600 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
604 return RNDIS_WLAN_KEY_MGMT_NONE;
605 case WLAN_AKM_SUITE_8021X:
606 return RNDIS_WLAN_KEY_MGMT_802_1X;
607 case WLAN_AKM_SUITE_PSK:
608 return RNDIS_WLAN_KEY_MGMT_PSK;
614 static const char *oid_to_string(__le32 oid)
617 #define OID_STR(oid) case oid: return(#oid)
618 /* from rndis_host.h */
619 OID_STR(OID_802_3_PERMANENT_ADDRESS);
620 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
621 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
622 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
624 /* from rndis_wlan.c */
625 OID_STR(OID_GEN_LINK_SPEED);
626 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
628 OID_STR(OID_GEN_XMIT_OK);
629 OID_STR(OID_GEN_RCV_OK);
630 OID_STR(OID_GEN_XMIT_ERROR);
631 OID_STR(OID_GEN_RCV_ERROR);
632 OID_STR(OID_GEN_RCV_NO_BUFFER);
634 OID_STR(OID_802_3_CURRENT_ADDRESS);
635 OID_STR(OID_802_3_MULTICAST_LIST);
636 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
638 OID_STR(OID_802_11_BSSID);
639 OID_STR(OID_802_11_SSID);
640 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
641 OID_STR(OID_802_11_ADD_WEP);
642 OID_STR(OID_802_11_REMOVE_WEP);
643 OID_STR(OID_802_11_DISASSOCIATE);
644 OID_STR(OID_802_11_AUTHENTICATION_MODE);
645 OID_STR(OID_802_11_PRIVACY_FILTER);
646 OID_STR(OID_802_11_BSSID_LIST_SCAN);
647 OID_STR(OID_802_11_ENCRYPTION_STATUS);
648 OID_STR(OID_802_11_ADD_KEY);
649 OID_STR(OID_802_11_REMOVE_KEY);
650 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
651 OID_STR(OID_802_11_PMKID);
652 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
653 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
654 OID_STR(OID_802_11_TX_POWER_LEVEL);
655 OID_STR(OID_802_11_RSSI);
656 OID_STR(OID_802_11_RSSI_TRIGGER);
657 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
658 OID_STR(OID_802_11_RTS_THRESHOLD);
659 OID_STR(OID_802_11_SUPPORTED_RATES);
660 OID_STR(OID_802_11_CONFIGURATION);
661 OID_STR(OID_802_11_BSSID_LIST);
668 static const char *oid_to_string(__le32 oid)
675 /* translate error code */
676 static int rndis_error_status(__le32 rndis_status)
679 switch (rndis_status) {
680 case RNDIS_STATUS_SUCCESS:
683 case RNDIS_STATUS_FAILURE:
684 case RNDIS_STATUS_INVALID_DATA:
687 case RNDIS_STATUS_NOT_SUPPORTED:
690 case RNDIS_STATUS_ADAPTER_NOT_READY:
691 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
699 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
701 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
704 struct rndis_msg_hdr *header;
705 struct rndis_query *get;
706 struct rndis_query_c *get_c;
710 buflen = *len + sizeof(*u.get);
711 if (buflen < CONTROL_BUFFER_SIZE)
712 buflen = CONTROL_BUFFER_SIZE;
714 if (buflen > COMMAND_BUFFER_SIZE) {
715 u.buf = kmalloc(buflen, GFP_KERNEL);
719 u.buf = priv->command_buffer;
722 mutex_lock(&priv->command_lock);
724 memset(u.get, 0, sizeof *u.get);
725 u.get->msg_type = RNDIS_MSG_QUERY;
726 u.get->msg_len = cpu_to_le32(sizeof *u.get);
729 priv->current_command_oid = oid;
730 ret = rndis_command(dev, u.header, buflen);
731 priv->current_command_oid = 0;
733 devdbg(dev, "rndis_query_oid(%s): rndis_command() failed, %d "
734 "(%08x)", oid_to_string(oid), ret,
735 le32_to_cpu(u.get_c->status));
738 ret = le32_to_cpu(u.get_c->len);
741 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
742 ret = rndis_error_status(u.get_c->status);
745 devdbg(dev, "rndis_query_oid(%s): device returned "
746 "error, 0x%08x (%d)", oid_to_string(oid),
747 le32_to_cpu(u.get_c->status), ret);
750 mutex_unlock(&priv->command_lock);
752 if (u.buf != priv->command_buffer)
758 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
760 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
763 struct rndis_msg_hdr *header;
764 struct rndis_set *set;
765 struct rndis_set_c *set_c;
769 buflen = len + sizeof(*u.set);
770 if (buflen < CONTROL_BUFFER_SIZE)
771 buflen = CONTROL_BUFFER_SIZE;
773 if (buflen > COMMAND_BUFFER_SIZE) {
774 u.buf = kmalloc(buflen, GFP_KERNEL);
778 u.buf = priv->command_buffer;
781 mutex_lock(&priv->command_lock);
783 memset(u.set, 0, sizeof *u.set);
784 u.set->msg_type = RNDIS_MSG_SET;
785 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
787 u.set->len = cpu_to_le32(len);
788 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
789 u.set->handle = cpu_to_le32(0);
790 memcpy(u.buf + sizeof(*u.set), data, len);
792 priv->current_command_oid = oid;
793 ret = rndis_command(dev, u.header, buflen);
794 priv->current_command_oid = 0;
796 devdbg(dev, "rndis_set_oid(%s): rndis_command() failed, %d "
797 "(%08x)", oid_to_string(oid), ret,
798 le32_to_cpu(u.set_c->status));
801 ret = rndis_error_status(u.set_c->status);
804 devdbg(dev, "rndis_set_oid(%s): device returned error, "
805 "0x%08x (%d)", oid_to_string(oid),
806 le32_to_cpu(u.set_c->status), ret);
809 mutex_unlock(&priv->command_lock);
811 if (u.buf != priv->command_buffer)
817 static int rndis_reset(struct usbnet *usbdev)
819 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
820 struct rndis_reset *reset;
823 mutex_lock(&priv->command_lock);
825 reset = (void *)priv->command_buffer;
826 memset(reset, 0, sizeof(*reset));
827 reset->msg_type = RNDIS_MSG_RESET;
828 reset->msg_len = cpu_to_le32(sizeof(*reset));
829 priv->current_command_oid = 0;
830 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
832 mutex_unlock(&priv->command_lock);
841 * Specs say that we can only set config parameters only soon after device
843 * value_type: 0 = u32, 2 = unicode string
845 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
846 int value_type, void *value)
848 struct ndis_config_param *infobuf;
849 int value_len, info_len, param_len, ret, i;
854 value_len = sizeof(__le32);
855 else if (value_type == 2)
856 value_len = strlen(value) * sizeof(__le16);
860 param_len = strlen(param) * sizeof(__le16);
861 info_len = sizeof(*infobuf) + param_len + value_len;
866 infobuf = kmalloc(info_len, GFP_KERNEL);
872 /* extra 12 bytes are for padding (debug output) */
873 memset(infobuf, 0xCC, info_len + 12);
877 devdbg(dev, "setting config parameter: %s, value: %s",
880 devdbg(dev, "setting config parameter: %s, value: %d",
881 param, *(u32 *)value);
883 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
884 infobuf->name_length = cpu_to_le32(param_len);
885 infobuf->type = cpu_to_le32(value_type);
886 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
887 infobuf->value_length = cpu_to_le32(value_len);
889 /* simple string to unicode string conversion */
890 unibuf = (void *)infobuf + sizeof(*infobuf);
891 for (i = 0; i < param_len / sizeof(__le16); i++)
892 unibuf[i] = cpu_to_le16(param[i]);
894 if (value_type == 2) {
895 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
896 for (i = 0; i < value_len / sizeof(__le16); i++)
897 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
899 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
900 *dst_value = cpu_to_le32(*(u32 *)value);
904 devdbg(dev, "info buffer (len: %d):", info_len);
905 for (i = 0; i < info_len; i += 12) {
906 u32 *tmp = (u32 *)((u8 *)infobuf + i);
907 devdbg(dev, "%08X:%08X:%08X",
910 cpu_to_be32(tmp[2]));
914 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
917 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
923 static int rndis_set_config_parameter_str(struct usbnet *dev,
924 char *param, char *value)
926 return(rndis_set_config_parameter(dev, param, 2, value));
929 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
930 char *param, u32 value)
932 return(rndis_set_config_parameter(dev, param, 0, &value));
937 * data conversion functions
939 static int level_to_qual(int level)
941 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
942 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
949 static int set_infra_mode(struct usbnet *usbdev, int mode);
950 static void restore_keys(struct usbnet *usbdev);
951 static int rndis_check_bssid_list(struct usbnet *usbdev);
953 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
955 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
958 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
960 devwarn(usbdev, "setting SSID failed (%08X)", ret);
964 memcpy(&priv->essid, ssid, sizeof(priv->essid));
966 devdbg(usbdev, "set_essid: radio_on = 1");
972 static int set_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
976 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
978 devwarn(usbdev, "setting BSSID[%pM] failed (%08X)", bssid, ret);
985 static int clear_bssid(struct usbnet *usbdev)
987 u8 broadcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
989 return set_bssid(usbdev, broadcast_mac);
992 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
997 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
1000 memset(bssid, 0, ETH_ALEN);
1005 static int get_association_info(struct usbnet *usbdev,
1006 struct ndis_80211_assoc_info *info, int len)
1008 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
1012 static bool is_associated(struct usbnet *usbdev)
1014 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1018 if (!priv->radio_on)
1021 ret = get_bssid(usbdev, bssid);
1023 return (ret == 0 && !is_zero_ether_addr(bssid));
1027 static int disassociate(struct usbnet *usbdev, int reset_ssid)
1029 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1030 struct ndis_80211_ssid ssid;
1033 if (priv->radio_on) {
1034 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1037 devdbg(usbdev, "disassociate: radio_on = 0");
1044 /* disassociate causes radio to be turned off; if reset_ssid
1045 * is given, set random ssid to enable radio */
1047 /* Set device to infrastructure mode so we don't get ad-hoc
1048 * 'media connect' indications with the random ssid.
1050 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1052 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1053 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1054 ssid.essid[0] = 0x1;
1055 ssid.essid[1] = 0xff;
1056 for (i = 2; i < sizeof(ssid.essid); i++)
1057 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1058 ret = set_essid(usbdev, &ssid);
1064 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1065 enum nl80211_auth_type auth_type, int keymgmt)
1067 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1071 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
1072 "keymgmt=0x%x", wpa_version, auth_type, keymgmt);
1074 if (wpa_version & NL80211_WPA_VERSION_2) {
1075 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1076 auth_mode = NDIS_80211_AUTH_WPA2;
1078 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1079 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1080 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1081 auth_mode = NDIS_80211_AUTH_WPA;
1082 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1083 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1085 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1086 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1087 auth_mode = NDIS_80211_AUTH_SHARED;
1088 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1089 auth_mode = NDIS_80211_AUTH_OPEN;
1093 tmp = cpu_to_le32(auth_mode);
1094 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1097 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
1101 priv->wpa_version = wpa_version;
1102 priv->wpa_auth_type = auth_type;
1103 priv->wpa_keymgmt = keymgmt;
1109 static int set_priv_filter(struct usbnet *usbdev)
1111 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1114 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
1116 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1117 priv->wpa_version & NL80211_WPA_VERSION_1)
1118 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1120 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1122 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1127 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1129 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1133 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
1134 pairwise, groupwise);
1136 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1137 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1138 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1139 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1140 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1141 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1142 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1143 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1144 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1145 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1147 encr_mode = NDIS_80211_ENCR_DISABLED;
1149 tmp = cpu_to_le32(encr_mode);
1150 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1153 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
1157 priv->wpa_cipher_pair = pairwise;
1158 priv->wpa_cipher_group = groupwise;
1163 static int set_infra_mode(struct usbnet *usbdev, int mode)
1165 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1169 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
1171 tmp = cpu_to_le32(mode);
1172 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1175 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
1179 /* NDIS drivers clear keys when infrastructure mode is
1180 * changed. But Linux tools assume otherwise. So set the
1182 restore_keys(usbdev);
1184 priv->infra_mode = mode;
1189 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1193 devdbg(usbdev, "set_rts_threshold %i", rts_threshold);
1195 if (rts_threshold < 0 || rts_threshold > 2347)
1196 rts_threshold = 2347;
1198 tmp = cpu_to_le32(rts_threshold);
1199 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1204 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1208 devdbg(usbdev, "set_frag_threshold %i", frag_threshold);
1210 if (frag_threshold < 256 || frag_threshold > 2346)
1211 frag_threshold = 2346;
1213 tmp = cpu_to_le32(frag_threshold);
1214 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1219 static void set_default_iw_params(struct usbnet *usbdev)
1221 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1222 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1223 RNDIS_WLAN_KEY_MGMT_NONE);
1224 set_priv_filter(usbdev);
1225 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1229 static int deauthenticate(struct usbnet *usbdev)
1233 ret = disassociate(usbdev, 1);
1234 set_default_iw_params(usbdev);
1239 static int set_channel(struct usbnet *usbdev, int channel)
1241 struct ndis_80211_conf config;
1242 unsigned int dsconfig;
1245 devdbg(usbdev, "set_channel(%d)", channel);
1247 /* this OID is valid only when not associated */
1248 if (is_associated(usbdev))
1251 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1253 len = sizeof(config);
1254 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1256 devdbg(usbdev, "set_channel: querying configuration failed");
1260 config.ds_config = cpu_to_le32(dsconfig);
1261 ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1264 devdbg(usbdev, "set_channel: %d -> %d", channel, ret);
1270 /* index must be 0 - N, as per NDIS */
1271 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1274 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1275 struct ndis_80211_wep_key ndis_key;
1279 devdbg(usbdev, "add_wep_key(idx: %d, len: %d)", index, key_len);
1281 if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1285 cipher = WLAN_CIPHER_SUITE_WEP40;
1287 cipher = WLAN_CIPHER_SUITE_WEP104;
1289 memset(&ndis_key, 0, sizeof(ndis_key));
1291 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1292 ndis_key.length = cpu_to_le32(key_len);
1293 ndis_key.index = cpu_to_le32(index);
1294 memcpy(&ndis_key.material, key, key_len);
1296 if (index == priv->encr_tx_key_index) {
1297 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1298 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1299 RNDIS_WLAN_ALG_NONE);
1301 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1305 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1308 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1313 priv->encr_keys[index].len = key_len;
1314 priv->encr_keys[index].cipher = cipher;
1315 memcpy(&priv->encr_keys[index].material, key, key_len);
1316 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1322 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1323 int index, const u8 *addr, const u8 *rx_seq,
1324 int seq_len, u32 cipher, int flags)
1326 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1327 struct ndis_80211_key ndis_key;
1331 if (index < 0 || index >= 4) {
1332 devdbg(usbdev, "add_wpa_key: index out of range (%i)", index);
1335 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1336 devdbg(usbdev, "add_wpa_key: key length out of range (%i)",
1340 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1341 if (!rx_seq || seq_len <= 0) {
1342 devdbg(usbdev, "add_wpa_key: recv seq flag without"
1346 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1347 devdbg(usbdev, "add_wpa_key: too big recv seq buffer");
1352 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1353 !is_broadcast_ether_addr(addr);
1354 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1355 devdbg(usbdev, "add_wpa_key: pairwise but bssid invalid (%pM)",
1360 devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1361 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1362 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1363 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1365 memset(&ndis_key, 0, sizeof(ndis_key));
1367 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1368 sizeof(ndis_key.material) + key_len);
1369 ndis_key.length = cpu_to_le32(key_len);
1370 ndis_key.index = cpu_to_le32(index) | flags;
1372 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1373 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1374 * different order than NDIS spec, so swap the order here. */
1375 memcpy(ndis_key.material, key, 16);
1376 memcpy(ndis_key.material + 16, key + 24, 8);
1377 memcpy(ndis_key.material + 24, key + 16, 8);
1379 memcpy(ndis_key.material, key, key_len);
1381 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1382 memcpy(ndis_key.rsc, rx_seq, seq_len);
1384 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1386 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1389 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1390 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1392 get_bssid(usbdev, ndis_key.bssid);
1395 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1396 le32_to_cpu(ndis_key.size));
1397 devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1401 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1402 priv->encr_keys[index].len = key_len;
1403 priv->encr_keys[index].cipher = cipher;
1404 memcpy(&priv->encr_keys[index].material, key, key_len);
1405 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1406 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1408 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1410 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1411 priv->encr_tx_key_index = index;
1417 static int restore_key(struct usbnet *usbdev, int key_idx)
1419 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1420 struct rndis_wlan_encr_key key;
1422 if (is_wpa_key(priv, key_idx))
1425 key = priv->encr_keys[key_idx];
1427 devdbg(usbdev, "restore_key: %i:%i", key_idx, key.len);
1432 return add_wep_key(usbdev, key.material, key.len, key_idx);
1436 static void restore_keys(struct usbnet *usbdev)
1440 for (i = 0; i < 4; i++)
1441 restore_key(usbdev, i);
1445 static void clear_key(struct rndis_wlan_private *priv, int idx)
1447 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1451 /* remove_key is for both wep and wpa */
1452 static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
1454 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1455 struct ndis_80211_remove_key remove_key;
1460 if (priv->encr_keys[index].len == 0)
1463 is_wpa = is_wpa_key(priv, index);
1465 devdbg(usbdev, "remove_key: %i:%s:%i", index, is_wpa ? "wpa" : "wep",
1466 priv->encr_keys[index].len);
1468 clear_key(priv, index);
1471 remove_key.size = cpu_to_le32(sizeof(remove_key));
1472 remove_key.index = cpu_to_le32(index);
1475 if (!is_broadcast_ether_addr(bssid))
1477 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1478 memcpy(remove_key.bssid, bssid,
1479 sizeof(remove_key.bssid));
1481 memset(remove_key.bssid, 0xff,
1482 sizeof(remove_key.bssid));
1484 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1485 sizeof(remove_key));
1489 keyindex = cpu_to_le32(index);
1490 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1494 "removing encryption key %d failed (%08X)",
1500 /* if it is transmit key, disable encryption */
1501 if (index == priv->encr_tx_key_index)
1502 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1508 static void set_multicast_list(struct usbnet *usbdev)
1510 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1511 struct dev_mc_list *mclist;
1516 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1518 if (usbdev->net->flags & IFF_PROMISC) {
1519 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1520 RNDIS_PACKET_TYPE_ALL_LOCAL;
1521 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1522 usbdev->net->mc_count > priv->multicast_size) {
1523 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1524 } else if (usbdev->net->mc_count > 0) {
1525 size = min(priv->multicast_size, usbdev->net->mc_count);
1526 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1529 "couldn't alloc %d bytes of memory",
1534 mclist = usbdev->net->mc_list;
1535 for (i = 0; i < size && mclist; mclist = mclist->next) {
1536 if (mclist->dmi_addrlen != ETH_ALEN)
1539 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1543 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1545 if (ret == 0 && i > 0)
1546 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1548 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1550 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1551 i, priv->multicast_size, ret);
1556 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1559 devwarn(usbdev, "couldn't set packet filter: %08x",
1560 le32_to_cpu(filter));
1563 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1564 le32_to_cpu(filter), ret);
1571 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1572 struct net_device *dev,
1573 enum nl80211_iftype type, u32 *flags,
1574 struct vif_params *params)
1576 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1577 struct usbnet *usbdev = priv->usbdev;
1581 case NL80211_IFTYPE_ADHOC:
1582 mode = NDIS_80211_INFRA_ADHOC;
1584 case NL80211_IFTYPE_STATION:
1585 mode = NDIS_80211_INFRA_INFRA;
1591 priv->wdev.iftype = type;
1593 return set_infra_mode(usbdev, mode);
1597 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1599 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1600 struct usbnet *usbdev = priv->usbdev;
1603 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1604 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1609 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1610 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1619 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
1622 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1623 struct usbnet *usbdev = priv->usbdev;
1625 devdbg(usbdev, "rndis_set_tx_power type:0x%x dbm:%i", type, dbm);
1627 /* Device doesn't support changing txpower after initialization, only
1628 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1631 if (type == TX_POWER_AUTOMATIC || dbm == get_bcm4320_power_dbm(priv)) {
1632 if (!priv->radio_on)
1633 disassociate(usbdev, 1); /* turn on radio */
1642 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1644 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1645 struct usbnet *usbdev = priv->usbdev;
1647 *dbm = get_bcm4320_power_dbm(priv);
1649 devdbg(usbdev, "rndis_get_tx_power dbm:%i", *dbm);
1655 #define SCAN_DELAY_JIFFIES (6 * HZ)
1656 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1657 struct cfg80211_scan_request *request)
1659 struct usbnet *usbdev = netdev_priv(dev);
1660 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1664 devdbg(usbdev, "cfg80211.scan");
1666 /* Get current bssid list from device before new scan, as new scan
1667 * clears internal bssid list.
1669 rndis_check_bssid_list(usbdev);
1674 if (priv->scan_request && priv->scan_request != request)
1677 priv->scan_request = request;
1679 tmp = cpu_to_le32(1);
1680 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1683 /* Wait before retrieving scan results from device */
1684 queue_delayed_work(priv->workqueue, &priv->scan_work,
1685 SCAN_DELAY_JIFFIES);
1692 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1693 struct ndis_80211_bssid_ex *bssid)
1695 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1696 struct ieee80211_channel *channel;
1700 u16 beacon_interval;
1701 struct ndis_80211_fixed_ies *fixed;
1702 int ie_len, bssid_len;
1705 devdbg(usbdev, " found bssid: '%.32s' [%pM]", bssid->ssid.essid,
1708 /* parse bssid structure */
1709 bssid_len = le32_to_cpu(bssid->length);
1711 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1712 sizeof(struct ndis_80211_fixed_ies))
1715 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1717 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1718 ie_len = min(bssid_len - (int)sizeof(*bssid),
1719 (int)le32_to_cpu(bssid->ie_length));
1720 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1724 /* extract data for cfg80211_inform_bss */
1725 channel = ieee80211_get_channel(priv->wdev.wiphy,
1726 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1730 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1731 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1732 capability = le16_to_cpu(fixed->capabilities);
1733 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1735 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1736 timestamp, capability, beacon_interval, ie, ie_len, signal,
1741 static int rndis_check_bssid_list(struct usbnet *usbdev)
1744 struct ndis_80211_bssid_list_ex *bssid_list;
1745 struct ndis_80211_bssid_ex *bssid;
1746 int ret = -EINVAL, len, count, bssid_len;
1747 bool resized = false;
1749 devdbg(usbdev, "check_bssid_list");
1751 len = CONTROL_BUFFER_SIZE;
1753 buf = kmalloc(len, GFP_KERNEL);
1759 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1763 if (!resized && len > CONTROL_BUFFER_SIZE) {
1770 bssid = bssid_list->bssid;
1771 bssid_len = le32_to_cpu(bssid->length);
1772 count = le32_to_cpu(bssid_list->num_items);
1773 devdbg(usbdev, "check_bssid_list: %d BSSIDs found (buflen: %d)", count,
1776 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1777 rndis_bss_info_update(usbdev, bssid);
1779 bssid = (void *)bssid + bssid_len;
1780 bssid_len = le32_to_cpu(bssid->length);
1790 static void rndis_get_scan_results(struct work_struct *work)
1792 struct rndis_wlan_private *priv =
1793 container_of(work, struct rndis_wlan_private, scan_work.work);
1794 struct usbnet *usbdev = priv->usbdev;
1797 devdbg(usbdev, "get_scan_results");
1799 if (!priv->scan_request)
1802 ret = rndis_check_bssid_list(usbdev);
1804 cfg80211_scan_done(priv->scan_request, ret < 0);
1806 priv->scan_request = NULL;
1809 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
1810 struct cfg80211_connect_params *sme)
1812 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1813 struct usbnet *usbdev = priv->usbdev;
1814 struct ieee80211_channel *channel = sme->channel;
1815 struct ndis_80211_ssid ssid;
1816 int pairwise = RNDIS_WLAN_ALG_NONE;
1817 int groupwise = RNDIS_WLAN_ALG_NONE;
1818 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
1819 int length, i, ret, chan = -1;
1822 chan = ieee80211_frequency_to_channel(channel->center_freq);
1824 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
1825 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
1827 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
1829 if (sme->crypto.n_ciphers_pairwise > 0 &&
1830 pairwise == RNDIS_WLAN_ALG_NONE) {
1831 deverr(usbdev, "Unsupported pairwise cipher");
1835 for (i = 0; i < sme->crypto.n_akm_suites; i++)
1837 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
1839 if (sme->crypto.n_akm_suites > 0 &&
1840 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
1841 deverr(usbdev, "Invalid keymgmt");
1845 devdbg(usbdev, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:"
1846 "0x%x]:0x%x)", sme->ssid, sme->bssid, chan,
1847 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
1848 groupwise, pairwise, keymgmt);
1850 if (is_associated(usbdev))
1851 disassociate(usbdev, false);
1853 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1855 devdbg(usbdev, "connect: set_infra_mode failed, %d", ret);
1856 goto err_turn_radio_on;
1859 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
1862 devdbg(usbdev, "connect: set_auth_mode failed, %d", ret);
1863 goto err_turn_radio_on;
1866 set_priv_filter(usbdev);
1868 ret = set_encr_mode(usbdev, pairwise, groupwise);
1870 devdbg(usbdev, "connect: set_encr_mode failed, %d", ret);
1871 goto err_turn_radio_on;
1875 ret = set_channel(usbdev, chan);
1877 devdbg(usbdev, "connect: set_channel failed, %d", ret);
1878 goto err_turn_radio_on;
1882 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
1883 priv->encr_tx_key_index = sme->key_idx;
1884 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
1886 devdbg(usbdev, "connect: add_wep_key failed, %d "
1887 "(%d, %d)", ret, sme->key_len, sme->key_idx);
1888 goto err_turn_radio_on;
1892 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
1893 !is_broadcast_ether_addr(sme->bssid)) {
1894 ret = set_bssid(usbdev, sme->bssid);
1896 devdbg(usbdev, "connect: set_bssid failed, %d", ret);
1897 goto err_turn_radio_on;
1900 clear_bssid(usbdev);
1902 length = sme->ssid_len;
1903 if (length > NDIS_802_11_LENGTH_SSID)
1904 length = NDIS_802_11_LENGTH_SSID;
1906 memset(&ssid, 0, sizeof(ssid));
1907 ssid.length = cpu_to_le32(length);
1908 memcpy(ssid.essid, sme->ssid, length);
1910 /* Pause and purge rx queue, so we don't pass packets before
1911 * 'media connect'-indication.
1913 usbnet_pause_rx(usbdev);
1914 usbnet_purge_paused_rxq(usbdev);
1916 ret = set_essid(usbdev, &ssid);
1918 devdbg(usbdev, "connect: set_essid failed, %d", ret);
1922 disassociate(usbdev, 1);
1927 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
1930 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1931 struct usbnet *usbdev = priv->usbdev;
1933 devdbg(usbdev, "cfg80211.disconnect(%d)", reason_code);
1935 priv->connected = false;
1936 memset(priv->bssid, 0, ETH_ALEN);
1938 return deauthenticate(usbdev);
1941 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1942 struct cfg80211_ibss_params *params)
1944 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1945 struct usbnet *usbdev = priv->usbdev;
1946 struct ieee80211_channel *channel = params->channel;
1947 struct ndis_80211_ssid ssid;
1948 enum nl80211_auth_type auth_type;
1949 int ret, alg, length, chan = -1;
1952 chan = ieee80211_frequency_to_channel(channel->center_freq);
1954 /* TODO: How to handle ad-hoc encryption?
1955 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
1956 * pre-shared for encryption (open/shared/wpa), is key set before
1957 * join_ibss? Which auth_type to use (not in params)? What about WPA?
1959 if (params->privacy) {
1960 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
1961 alg = RNDIS_WLAN_ALG_WEP;
1963 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1964 alg = RNDIS_WLAN_ALG_NONE;
1967 devdbg(usbdev, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)", params->ssid,
1968 params->bssid, chan, params->privacy);
1970 if (is_associated(usbdev))
1971 disassociate(usbdev, false);
1973 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
1975 devdbg(usbdev, "join_ibss: set_infra_mode failed, %d", ret);
1976 goto err_turn_radio_on;
1979 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
1981 devdbg(usbdev, "join_ibss: set_auth_mode failed, %d", ret);
1982 goto err_turn_radio_on;
1985 set_priv_filter(usbdev);
1987 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
1989 devdbg(usbdev, "join_ibss: set_encr_mode failed, %d", ret);
1990 goto err_turn_radio_on;
1994 ret = set_channel(usbdev, chan);
1996 devdbg(usbdev, "join_ibss: set_channel failed, %d",
1998 goto err_turn_radio_on;
2002 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2003 !is_broadcast_ether_addr(params->bssid)) {
2004 ret = set_bssid(usbdev, params->bssid);
2006 devdbg(usbdev, "join_ibss: set_bssid failed, %d", ret);
2007 goto err_turn_radio_on;
2010 clear_bssid(usbdev);
2012 length = params->ssid_len;
2013 if (length > NDIS_802_11_LENGTH_SSID)
2014 length = NDIS_802_11_LENGTH_SSID;
2016 memset(&ssid, 0, sizeof(ssid));
2017 ssid.length = cpu_to_le32(length);
2018 memcpy(ssid.essid, params->ssid, length);
2020 /* Don't need to pause rx queue for ad-hoc. */
2021 usbnet_purge_paused_rxq(usbdev);
2022 usbnet_resume_rx(usbdev);
2024 ret = set_essid(usbdev, &ssid);
2026 devdbg(usbdev, "join_ibss: set_essid failed, %d", ret);
2030 disassociate(usbdev, 1);
2035 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2037 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2038 struct usbnet *usbdev = priv->usbdev;
2040 devdbg(usbdev, "cfg80211.leave_ibss()");
2042 priv->connected = false;
2043 memset(priv->bssid, 0, ETH_ALEN);
2045 return deauthenticate(usbdev);
2048 static int rndis_set_channel(struct wiphy *wiphy,
2049 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2051 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2052 struct usbnet *usbdev = priv->usbdev;
2054 return set_channel(usbdev,
2055 ieee80211_frequency_to_channel(chan->center_freq));
2058 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2059 u8 key_index, const u8 *mac_addr,
2060 struct key_params *params)
2062 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2063 struct usbnet *usbdev = priv->usbdev;
2066 devdbg(usbdev, "rndis_add_key(%i, %pM, %08x)", key_index, mac_addr,
2069 switch (params->cipher) {
2070 case WLAN_CIPHER_SUITE_WEP40:
2071 case WLAN_CIPHER_SUITE_WEP104:
2072 return add_wep_key(usbdev, params->key, params->key_len,
2074 case WLAN_CIPHER_SUITE_TKIP:
2075 case WLAN_CIPHER_SUITE_CCMP:
2078 if (params->seq && params->seq_len > 0)
2079 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2081 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2082 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2084 return add_wpa_key(usbdev, params->key, params->key_len,
2085 key_index, mac_addr, params->seq,
2086 params->seq_len, params->cipher, flags);
2088 devdbg(usbdev, "rndis_add_key: unsupported cipher %08x",
2094 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2095 u8 key_index, const u8 *mac_addr)
2097 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2098 struct usbnet *usbdev = priv->usbdev;
2100 devdbg(usbdev, "rndis_del_key(%i, %pM)", key_index, mac_addr);
2102 return remove_key(usbdev, key_index, mac_addr);
2105 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2108 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2109 struct usbnet *usbdev = priv->usbdev;
2110 struct rndis_wlan_encr_key key;
2112 devdbg(usbdev, "rndis_set_default_key(%i)", key_index);
2114 priv->encr_tx_key_index = key_index;
2116 key = priv->encr_keys[key_index];
2118 return add_wep_key(usbdev, key.material, key.len, key_index);
2121 static void rndis_fill_station_info(struct usbnet *usbdev,
2122 struct station_info *sinfo)
2124 __le32 linkspeed, rssi;
2127 memset(sinfo, 0, sizeof(*sinfo));
2129 len = sizeof(linkspeed);
2130 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2132 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2133 sinfo->filled |= STATION_INFO_TX_BITRATE;
2137 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2139 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2140 sinfo->filled |= STATION_INFO_SIGNAL;
2144 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2145 u8 *mac, struct station_info *sinfo)
2147 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2148 struct usbnet *usbdev = priv->usbdev;
2150 if (compare_ether_addr(priv->bssid, mac))
2153 rndis_fill_station_info(usbdev, sinfo);
2159 * wireless extension handlers
2162 static int rndis_iw_commit(struct net_device *dev,
2163 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2170 /* Commented code out instead of removing to have more sane patch for review.
2171 * Will be removed later in the set.
2173 static int rndis_iw_set_essid(struct net_device *dev,
2174 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
2176 struct ndis_80211_ssid ssid;
2177 int length = wrqu->essid.length;
2178 struct usbnet *usbdev = netdev_priv(dev);
2180 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
2181 wrqu->essid.flags, wrqu->essid.length, essid);
2183 if (length > NDIS_802_11_LENGTH_SSID)
2184 length = NDIS_802_11_LENGTH_SSID;
2186 ssid.length = cpu_to_le32(length);
2188 memcpy(ssid.essid, essid, length);
2190 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
2192 set_assoc_params(usbdev);
2194 if (!wrqu->essid.flags || length == 0)
2195 return disassociate(usbdev, 1);
2197 /* Pause and purge rx queue, so we don't pass packets before
2198 * 'media connect'-indication.
2200 usbnet_pause_rx(usbdev);
2201 usbnet_purge_paused_rxq(usbdev);
2203 return set_essid(usbdev, &ssid);
2208 static int rndis_iw_get_essid(struct net_device *dev,
2209 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
2211 struct ndis_80211_ssid ssid;
2212 struct usbnet *usbdev = netdev_priv(dev);
2215 ret = get_essid(usbdev, &ssid);
2217 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
2218 wrqu->essid.flags = 1;
2219 wrqu->essid.length = le32_to_cpu(ssid.length);
2220 memcpy(essid, ssid.essid, wrqu->essid.length);
2221 essid[wrqu->essid.length] = 0;
2223 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
2224 wrqu->essid.flags = 0;
2225 wrqu->essid.length = 0;
2227 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
2232 static int rndis_iw_get_bssid(struct net_device *dev,
2233 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2235 struct usbnet *usbdev = netdev_priv(dev);
2236 unsigned char bssid[ETH_ALEN];
2239 ret = get_bssid(usbdev, bssid);
2242 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
2244 devdbg(usbdev, "SIOCGIWAP: <not associated>");
2246 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
2247 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
2253 static int rndis_iw_set_bssid(struct net_device *dev,
2254 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2256 struct usbnet *usbdev = netdev_priv(dev);
2257 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
2260 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
2262 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
2264 /* user apps may set ap's mac address, which is not required;
2265 * they may fail to work if this function fails, so return
2268 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
2274 static int rndis_iw_set_auth(struct net_device *dev,
2275 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2277 struct iw_param *p = &wrqu->param;
2278 struct usbnet *usbdev = netdev_priv(dev);
2279 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2280 int ret = -ENOTSUPP;
2282 switch (p->flags & IW_AUTH_INDEX) {
2283 case IW_AUTH_WPA_VERSION:
2284 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
2285 priv->wpa_version = p->value;
2289 case IW_AUTH_CIPHER_PAIRWISE:
2290 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
2291 priv->wpa_cipher_pair = p->value;
2295 case IW_AUTH_CIPHER_GROUP:
2296 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
2297 priv->wpa_cipher_group = p->value;
2301 case IW_AUTH_KEY_MGMT:
2302 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
2303 priv->wpa_keymgmt = p->value;
2307 case IW_AUTH_TKIP_COUNTERMEASURES:
2308 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
2313 case IW_AUTH_DROP_UNENCRYPTED:
2314 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
2318 case IW_AUTH_80211_AUTH_ALG:
2319 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
2320 priv->wpa_authalg = p->value;
2324 case IW_AUTH_WPA_ENABLED:
2325 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
2326 if (wrqu->param.value)
2327 deauthenticate(usbdev);
2331 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
2332 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
2337 case IW_AUTH_ROAMING_CONTROL:
2338 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
2342 case IW_AUTH_PRIVACY_INVOKED:
2343 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
2344 wrqu->param.flags & IW_AUTH_INDEX);
2348 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
2349 p->flags & IW_AUTH_INDEX, p->value);
2355 static int rndis_iw_get_auth(struct net_device *dev,
2356 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2358 struct iw_param *p = &wrqu->param;
2359 struct usbnet *usbdev = netdev_priv(dev);
2360 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2362 switch (p->flags & IW_AUTH_INDEX) {
2363 case IW_AUTH_WPA_VERSION:
2364 p->value = priv->wpa_version;
2366 case IW_AUTH_CIPHER_PAIRWISE:
2367 p->value = priv->wpa_cipher_pair;
2369 case IW_AUTH_CIPHER_GROUP:
2370 p->value = priv->wpa_cipher_group;
2372 case IW_AUTH_KEY_MGMT:
2373 p->value = priv->wpa_keymgmt;
2375 case IW_AUTH_80211_AUTH_ALG:
2376 p->value = priv->wpa_authalg;
2379 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
2380 wrqu->param.flags & IW_AUTH_INDEX);
2387 static int rndis_iw_set_encode(struct net_device *dev,
2388 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2390 struct usbnet *usbdev = netdev_priv(dev);
2391 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2392 struct rndis_wlan_encr_key key;
2393 int ret, index, key_len;
2396 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
2398 /* iwconfig gives index as 1 - N */
2402 index = priv->encr_tx_key_index;
2404 if (index < 0 || index >= 4) {
2405 devwarn(usbdev, "encryption index out of range (%u)", index);
2409 /* remove key if disabled */
2410 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
2411 if (remove_key(usbdev, index, NULL))
2417 /* global encryption state (for all keys) */
2418 if (wrqu->data.flags & IW_ENCODE_OPEN)
2419 ret = set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
2420 RNDIS_WLAN_KEY_MGMT_NONE);
2421 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
2422 ret = set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_SHARED_KEY,
2423 RNDIS_WLAN_KEY_MGMT_NONE);
2427 if (wrqu->data.length > 0) {
2428 key_len = wrqu->data.length;
2431 /* must be set as tx key */
2432 if (priv->encr_keys[index].len == 0)
2434 key = priv->encr_keys[index];
2436 keybuf = key.material;
2437 priv->encr_tx_key_index = index;
2440 if (add_wep_key(usbdev, keybuf, key_len, index) != 0)
2443 if (index == priv->encr_tx_key_index)
2444 /* ndis drivers want essid to be set after setting encr */
2445 set_essid(usbdev, &priv->essid);
2451 static int rndis_iw_set_encode_ext(struct net_device *dev,
2452 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2454 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
2455 struct usbnet *usbdev = netdev_priv(dev);
2456 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2457 int keyidx, flags, cipher;
2459 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
2461 /* iwconfig gives index as 1 - N */
2465 keyidx = priv->encr_tx_key_index;
2467 if (keyidx < 0 || keyidx >= 4) {
2468 devwarn(usbdev, "encryption index out of range (%u)", keyidx);
2472 if (ext->alg == IW_ENCODE_ALG_WEP) {
2473 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
2474 priv->encr_tx_key_index = keyidx;
2475 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
2479 if (ext->alg == IW_ENCODE_ALG_TKIP)
2480 cipher = WLAN_CIPHER_SUITE_TKIP;
2481 else if (ext->alg == IW_ENCODE_ALG_CCMP)
2482 cipher = WLAN_CIPHER_SUITE_CCMP;
2484 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
2485 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
2486 return remove_key(usbdev, keyidx, NULL);
2492 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID)
2493 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2494 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY))
2495 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY;
2496 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
2497 flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY;
2499 return add_wpa_key(usbdev, ext->key, ext->key_len, keyidx,
2500 (u8 *)&ext->addr.sa_data, ext->rx_seq, cipher,
2505 static int rndis_iw_get_rate(struct net_device *dev,
2506 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
2508 struct usbnet *usbdev = netdev_priv(dev);
2513 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
2515 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
2516 wrqu->bitrate.disabled = 0;
2517 wrqu->bitrate.flags = 1;
2523 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
2525 struct usbnet *usbdev = netdev_priv(dev);
2526 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2527 unsigned long flags;
2529 spin_lock_irqsave(&priv->stats_lock, flags);
2530 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
2531 spin_unlock_irqrestore(&priv->stats_lock, flags);
2533 return &priv->iwstats;
2538 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2539 static const iw_handler rndis_iw_handler[] =
2541 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
2542 IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname,
2543 IW_IOCTL(SIOCSIWFREQ) = (iw_handler) cfg80211_wext_siwfreq,
2544 IW_IOCTL(SIOCGIWFREQ) = (iw_handler) cfg80211_wext_giwfreq,
2545 IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode,
2546 IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode,
2547 IW_IOCTL(SIOCGIWRANGE) = (iw_handler) cfg80211_wext_giwrange,
2548 IW_IOCTL(SIOCSIWAP) = (iw_handler) cfg80211_wext_siwap,
2549 IW_IOCTL(SIOCGIWAP) = (iw_handler) cfg80211_wext_giwap,
2550 IW_IOCTL(SIOCSIWSCAN) = (iw_handler) cfg80211_wext_siwscan,
2551 IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan,
2552 IW_IOCTL(SIOCSIWESSID) = (iw_handler) cfg80211_wext_siwessid,
2553 IW_IOCTL(SIOCGIWESSID) = (iw_handler) cfg80211_wext_giwessid,
2554 IW_IOCTL(SIOCGIWRATE) = (iw_handler) cfg80211_wext_giwrate,
2555 IW_IOCTL(SIOCSIWRTS) = (iw_handler) cfg80211_wext_siwrts,
2556 IW_IOCTL(SIOCGIWRTS) = (iw_handler) cfg80211_wext_giwrts,
2557 IW_IOCTL(SIOCSIWFRAG) = (iw_handler) cfg80211_wext_siwfrag,
2558 IW_IOCTL(SIOCGIWFRAG) = (iw_handler) cfg80211_wext_giwfrag,
2559 IW_IOCTL(SIOCSIWTXPOW) = (iw_handler) cfg80211_wext_siwtxpower,
2560 IW_IOCTL(SIOCGIWTXPOW) = (iw_handler) cfg80211_wext_giwtxpower,
2561 IW_IOCTL(SIOCSIWENCODE) = (iw_handler) cfg80211_wext_siwencode,
2562 IW_IOCTL(SIOCSIWENCODEEXT) = (iw_handler) cfg80211_wext_siwencodeext,
2563 IW_IOCTL(SIOCSIWAUTH) = (iw_handler) cfg80211_wext_siwauth,
2564 IW_IOCTL(SIOCGIWAUTH) = (iw_handler) cfg80211_wext_giwauth,
2565 IW_IOCTL(SIOCSIWGENIE) = (iw_handler) cfg80211_wext_siwgenie,
2566 IW_IOCTL(SIOCSIWMLME) = (iw_handler) cfg80211_wext_siwmlme,
2569 static const iw_handler rndis_wlan_private_handler[] = {
2572 static const struct iw_priv_args rndis_wlan_private_args[] = {
2576 static const struct iw_handler_def rndis_iw_handlers = {
2577 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2578 .num_private = ARRAY_SIZE(rndis_wlan_private_handler),
2579 .num_private_args = ARRAY_SIZE(rndis_wlan_private_args),
2580 .standard = (iw_handler *)rndis_iw_handler,
2581 .private = (iw_handler *)rndis_wlan_private_handler,
2582 .private_args = (struct iw_priv_args *)rndis_wlan_private_args,
2583 .get_wireless_stats = cfg80211_wireless_stats,
2587 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2589 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2590 struct ndis_80211_assoc_info *info;
2591 u8 assoc_buf[sizeof(*info) + IW_CUSTOM_MAX + 32];
2593 int resp_ie_len, req_ie_len;
2594 u8 *req_ie, *resp_ie;
2596 bool roamed = false;
2598 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2599 /* received media connect indication while connected, either
2600 * device reassociated with same AP or roamed to new. */
2609 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2610 memset(assoc_buf, 0, sizeof(assoc_buf));
2611 info = (void *)assoc_buf;
2613 /* Get association info IEs from device and send them back to
2615 ret = get_association_info(usbdev, info, sizeof(assoc_buf));
2617 req_ie_len = le32_to_cpu(info->req_ie_length);
2618 if (req_ie_len > 0) {
2619 offset = le32_to_cpu(info->offset_req_ies);
2620 req_ie = (u8 *)info + offset;
2623 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2624 if (resp_ie_len > 0) {
2625 offset = le32_to_cpu(info->offset_resp_ies);
2626 resp_ie = (u8 *)info + offset;
2629 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2632 ret = get_bssid(usbdev, bssid);
2634 memset(bssid, 0, sizeof(bssid));
2636 devdbg(usbdev, "link up work: [%pM] %s", bssid, roamed ? "roamed" : "");
2638 /* Internal bss list in device always contains at least the currently
2639 * connected bss and we can get it to cfg80211 with
2640 * rndis_check_bssid_list().
2641 * NOTE: This is true for Broadcom chip, but not mentioned in RNDIS
2644 rndis_check_bssid_list(usbdev);
2646 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2648 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2649 req_ie_len, resp_ie,
2650 resp_ie_len, 0, GFP_KERNEL);
2652 cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len,
2653 resp_ie, resp_ie_len, GFP_KERNEL);
2654 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2655 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2657 priv->connected = true;
2658 memcpy(priv->bssid, bssid, ETH_ALEN);
2660 usbnet_resume_rx(usbdev);
2661 netif_carrier_on(usbdev->net);
2664 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2666 union iwreq_data evt;
2668 netif_carrier_off(usbdev->net);
2671 evt.data.length = 0;
2672 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2673 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2676 static void rndis_wlan_worker(struct work_struct *work)
2678 struct rndis_wlan_private *priv =
2679 container_of(work, struct rndis_wlan_private, work);
2680 struct usbnet *usbdev = priv->usbdev;
2682 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2683 rndis_wlan_do_link_up_work(usbdev);
2685 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2686 rndis_wlan_do_link_down_work(usbdev);
2688 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2689 set_multicast_list(usbdev);
2692 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2694 struct usbnet *usbdev = netdev_priv(dev);
2695 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2697 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2700 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2701 queue_work(priv->workqueue, &priv->work);
2705 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2706 struct ndis_80211_status_indication *indication,
2712 bool pairwise_error, group_error;
2713 struct ndis_80211_auth_request *auth_req;
2715 /* must have at least one array entry */
2716 if (len < offsetof(struct ndis_80211_status_indication, u) +
2717 sizeof(struct ndis_80211_auth_request)) {
2718 devinfo(usbdev, "authentication indication: "
2719 "too short message (%i)", len);
2723 buf = (void *)&indication->u.auth_request[0];
2724 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2726 while (buflen >= sizeof(*auth_req)) {
2727 auth_req = (void *)buf;
2729 flags = le32_to_cpu(auth_req->flags);
2730 pairwise_error = false;
2731 group_error = false;
2734 type = "reauth request";
2736 type = "key update request";
2738 pairwise_error = true;
2739 type = "pairwise_error";
2743 type = "group_error";
2746 devinfo(usbdev, "authentication indication: %s (0x%08x)", type,
2747 le32_to_cpu(auth_req->flags));
2749 if (pairwise_error || group_error) {
2750 union iwreq_data wrqu;
2751 struct iw_michaelmicfailure micfailure;
2753 memset(&micfailure, 0, sizeof(micfailure));
2755 micfailure.flags |= IW_MICFAILURE_PAIRWISE;
2757 micfailure.flags |= IW_MICFAILURE_GROUP;
2759 memcpy(micfailure.src_addr.sa_data, auth_req->bssid,
2762 memset(&wrqu, 0, sizeof(wrqu));
2763 wrqu.data.length = sizeof(micfailure);
2764 wireless_send_event(usbdev->net, IWEVMICHAELMICFAILURE,
2765 &wrqu, (u8 *)&micfailure);
2768 buflen -= le32_to_cpu(auth_req->length);
2769 buf += le32_to_cpu(auth_req->length);
2773 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2774 struct ndis_80211_status_indication *indication,
2777 struct ndis_80211_pmkid_cand_list *cand_list;
2778 int list_len, expected_len, i;
2780 if (len < offsetof(struct ndis_80211_status_indication, u) +
2781 sizeof(struct ndis_80211_pmkid_cand_list)) {
2782 devinfo(usbdev, "pmkid candidate list indication: "
2783 "too short message (%i)", len);
2787 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2788 sizeof(struct ndis_80211_pmkid_candidate);
2789 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2790 offsetof(struct ndis_80211_status_indication, u);
2792 if (len < expected_len) {
2793 devinfo(usbdev, "pmkid candidate list indication: "
2794 "list larger than buffer (%i < %i)",
2799 cand_list = &indication->u.cand_list;
2801 devinfo(usbdev, "pmkid candidate list indication: "
2802 "version %i, candidates %i",
2803 le32_to_cpu(cand_list->version),
2804 le32_to_cpu(cand_list->num_candidates));
2806 if (le32_to_cpu(cand_list->version) != 1)
2809 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2810 struct iw_pmkid_cand pcand;
2811 union iwreq_data wrqu;
2812 struct ndis_80211_pmkid_candidate *cand =
2813 &cand_list->candidate_list[i];
2815 devdbg(usbdev, "cand[%i]: flags: 0x%08x, bssid: %pM",
2816 i, le32_to_cpu(cand->flags), cand->bssid);
2818 memset(&pcand, 0, sizeof(pcand));
2819 if (le32_to_cpu(cand->flags) & 0x01)
2820 pcand.flags |= IW_PMKID_CAND_PREAUTH;
2822 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2824 memset(&wrqu, 0, sizeof(wrqu));
2825 wrqu.data.length = sizeof(pcand);
2826 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2831 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2832 struct rndis_indicate *msg, int buflen)
2834 struct ndis_80211_status_indication *indication;
2837 offset = offsetof(struct rndis_indicate, status) +
2838 le32_to_cpu(msg->offset);
2839 len = le32_to_cpu(msg->length);
2842 devinfo(usbdev, "media specific indication, "
2843 "ignore too short message (%i < 8)", len);
2847 if (offset + len > buflen) {
2848 devinfo(usbdev, "media specific indication, "
2849 "too large to fit to buffer (%i > %i)",
2850 offset + len, buflen);
2854 indication = (void *)((u8 *)msg + offset);
2856 switch (le32_to_cpu(indication->status_type)) {
2857 case NDIS_80211_STATUSTYPE_RADIOSTATE:
2858 devinfo(usbdev, "radio state indication: %i",
2859 le32_to_cpu(indication->u.radio_status));
2862 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
2863 devinfo(usbdev, "media stream mode indication: %i",
2864 le32_to_cpu(indication->u.media_stream_mode));
2867 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2868 rndis_wlan_auth_indication(usbdev, indication, len);
2871 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2872 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2876 devinfo(usbdev, "media specific indication: "
2877 "unknown status type 0x%08x",
2878 le32_to_cpu(indication->status_type));
2883 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
2885 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2886 struct rndis_indicate *msg = ind;
2888 switch (msg->status) {
2889 case RNDIS_STATUS_MEDIA_CONNECT:
2890 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2891 /* OID_802_11_ADD_KEY causes sometimes extra
2892 * "media connect" indications which confuses driver
2893 * and userspace to think that device is
2894 * roaming/reassociating when it isn't.
2896 devdbg(usbdev, "ignored OID_802_11_ADD_KEY triggered "
2901 usbnet_pause_rx(usbdev);
2903 devinfo(usbdev, "media connect");
2905 /* queue work to avoid recursive calls into rndis_command */
2906 set_bit(WORK_LINK_UP, &priv->work_pending);
2907 queue_work(priv->workqueue, &priv->work);
2910 case RNDIS_STATUS_MEDIA_DISCONNECT:
2911 devinfo(usbdev, "media disconnect");
2913 /* queue work to avoid recursive calls into rndis_command */
2914 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2915 queue_work(priv->workqueue, &priv->work);
2918 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2919 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2923 devinfo(usbdev, "indication: 0x%08x",
2924 le32_to_cpu(msg->status));
2930 static int rndis_wlan_get_caps(struct usbnet *usbdev)
2935 } networks_supported;
2936 int len, retval, i, n;
2937 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2939 /* determine supported modes */
2940 len = sizeof(networks_supported);
2941 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2942 &networks_supported, &len);
2944 n = le32_to_cpu(networks_supported.num_items);
2947 for (i = 0; i < n; i++) {
2948 switch (le32_to_cpu(networks_supported.items[i])) {
2949 case NDIS_80211_TYPE_FREQ_HOP:
2950 case NDIS_80211_TYPE_DIRECT_SEQ:
2951 priv->caps |= CAP_MODE_80211B;
2953 case NDIS_80211_TYPE_OFDM_A:
2954 priv->caps |= CAP_MODE_80211A;
2956 case NDIS_80211_TYPE_OFDM_G:
2957 priv->caps |= CAP_MODE_80211G;
2967 #define STATS_UPDATE_JIFFIES (HZ)
2968 static void rndis_update_wireless_stats(struct work_struct *work)
2970 struct rndis_wlan_private *priv =
2971 container_of(work, struct rndis_wlan_private, stats_work.work);
2972 struct usbnet *usbdev = priv->usbdev;
2975 int update_jiffies = STATS_UPDATE_JIFFIES;
2978 /* Only check/do workaround when connected. Calling is_associated()
2979 * also polls device with rndis_command() and catches for media link
2982 if (!is_associated(usbdev))
2986 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2988 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
2990 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2993 /* Workaround transfer stalls on poor quality links.
2994 * TODO: find right way to fix these stalls (as stalls do not happen
2995 * with ndiswrapper/windows driver). */
2996 if (priv->last_qual <= 25) {
2997 /* Decrease stats worker interval to catch stalls.
2998 * faster. Faster than 400-500ms causes packet loss,
2999 * Slower doesn't catch stalls fast enough.
3001 j = msecs_to_jiffies(priv->param_workaround_interval);
3002 if (j > STATS_UPDATE_JIFFIES)
3003 j = STATS_UPDATE_JIFFIES;
3008 /* Send scan OID. Use of both OIDs is required to get device
3011 tmp = cpu_to_le32(1);
3012 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
3015 len = CONTROL_BUFFER_SIZE;
3016 buf = kmalloc(len, GFP_KERNEL);
3020 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
3025 if (update_jiffies >= HZ)
3026 update_jiffies = round_jiffies_relative(update_jiffies);
3028 j = round_jiffies_relative(update_jiffies);
3029 if (abs(j - update_jiffies) <= 10)
3033 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
3037 static int bcm4320a_early_init(struct usbnet *usbdev)
3039 /* bcm4320a doesn't handle configuration parameters well. Try
3040 * set any and you get partially zeroed mac and broken device.
3047 static int bcm4320b_early_init(struct usbnet *usbdev)
3049 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3052 /* Early initialization settings, setting these won't have effect
3053 * if called after generic_rndis_bind().
3056 priv->param_country[0] = modparam_country[0];
3057 priv->param_country[1] = modparam_country[1];
3058 priv->param_country[2] = 0;
3059 priv->param_frameburst = modparam_frameburst;
3060 priv->param_afterburner = modparam_afterburner;
3061 priv->param_power_save = modparam_power_save;
3062 priv->param_power_output = modparam_power_output;
3063 priv->param_roamtrigger = modparam_roamtrigger;
3064 priv->param_roamdelta = modparam_roamdelta;
3066 priv->param_country[0] = toupper(priv->param_country[0]);
3067 priv->param_country[1] = toupper(priv->param_country[1]);
3068 /* doesn't support EU as country code, use FI instead */
3069 if (!strcmp(priv->param_country, "EU"))
3070 strcpy(priv->param_country, "FI");
3072 if (priv->param_power_save < 0)
3073 priv->param_power_save = 0;
3074 else if (priv->param_power_save > 2)
3075 priv->param_power_save = 2;
3077 if (priv->param_power_output < 0)
3078 priv->param_power_output = 0;
3079 else if (priv->param_power_output > 3)
3080 priv->param_power_output = 3;
3082 if (priv->param_roamtrigger < -80)
3083 priv->param_roamtrigger = -80;
3084 else if (priv->param_roamtrigger > -60)
3085 priv->param_roamtrigger = -60;
3087 if (priv->param_roamdelta < 0)
3088 priv->param_roamdelta = 0;
3089 else if (priv->param_roamdelta > 2)
3090 priv->param_roamdelta = 2;
3092 if (modparam_workaround_interval < 0)
3093 priv->param_workaround_interval = 500;
3095 priv->param_workaround_interval = modparam_workaround_interval;
3097 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3098 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3099 priv->param_frameburst ? "1" : "0");
3100 rndis_set_config_parameter_str(usbdev, "Afterburner",
3101 priv->param_afterburner ? "1" : "0");
3102 sprintf(buf, "%d", priv->param_power_save);
3103 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3104 sprintf(buf, "%d", priv->param_power_output);
3105 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3106 sprintf(buf, "%d", priv->param_roamtrigger);
3107 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3108 sprintf(buf, "%d", priv->param_roamdelta);
3109 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3114 /* same as rndis_netdev_ops but with local multicast handler */
3115 static const struct net_device_ops rndis_wlan_netdev_ops = {
3116 .ndo_open = usbnet_open,
3117 .ndo_stop = usbnet_stop,
3118 .ndo_start_xmit = usbnet_start_xmit,
3119 .ndo_tx_timeout = usbnet_tx_timeout,
3120 .ndo_set_mac_address = eth_mac_addr,
3121 .ndo_validate_addr = eth_validate_addr,
3122 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
3126 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3128 struct wiphy *wiphy;
3129 struct rndis_wlan_private *priv;
3133 /* allocate wiphy and rndis private data
3134 * NOTE: We only support a single virtual interface, so wiphy
3135 * and wireless_dev are somewhat synonymous for this device.
3137 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3141 priv = wiphy_priv(wiphy);
3142 usbdev->net->ieee80211_ptr = &priv->wdev;
3143 priv->wdev.wiphy = wiphy;
3144 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3146 /* These have to be initialized before calling generic_rndis_bind().
3147 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3149 usbdev->driver_priv = priv;
3150 usbdev->net->wireless_handlers = &rndis_iw_handlers;
3151 priv->usbdev = usbdev;
3153 mutex_init(&priv->command_lock);
3155 /* because rndis_command() sleeps we need to use workqueue */
3156 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3157 INIT_WORK(&priv->work, rndis_wlan_worker);
3158 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
3159 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3161 /* try bind rndis_host */
3162 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3166 /* generic_rndis_bind set packet filter to multicast_all+
3167 * promisc mode which doesn't work well for our devices (device
3168 * picks up rssi to closest station instead of to access point).
3170 * rndis_host wants to avoid all OID as much as possible
3171 * so do promisc/multicast handling in rndis_wlan.
3173 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3175 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
3176 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
3180 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
3182 priv->multicast_size = le32_to_cpu(tmp);
3183 if (retval < 0 || priv->multicast_size < 0)
3184 priv->multicast_size = 0;
3185 if (priv->multicast_size > 0)
3186 usbdev->net->flags |= IFF_MULTICAST;
3188 usbdev->net->flags &= ~IFF_MULTICAST;
3190 /* fill-out wiphy structure and register w/ cfg80211 */
3191 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3192 wiphy->privid = rndis_wiphy_privid;
3193 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3194 | BIT(NL80211_IFTYPE_ADHOC);
3195 wiphy->max_scan_ssids = 1;
3197 /* TODO: fill-out band/encr information based on priv->caps */
3198 rndis_wlan_get_caps(usbdev);
3200 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3201 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3202 priv->band.channels = priv->channels;
3203 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3204 priv->band.bitrates = priv->rates;
3205 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3206 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3207 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3209 memcpy(priv->cipher_suites, rndis_cipher_suites,
3210 sizeof(rndis_cipher_suites));
3211 wiphy->cipher_suites = priv->cipher_suites;
3212 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3214 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3216 if (wiphy_register(wiphy)) {
3221 set_default_iw_params(usbdev);
3223 /* set default rts/frag */
3224 rndis_set_wiphy_params(wiphy,
3225 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3229 disassociate(usbdev, 1);
3230 netif_carrier_off(usbdev->net);
3235 cancel_delayed_work_sync(&priv->stats_work);
3236 cancel_delayed_work_sync(&priv->scan_work);
3237 cancel_work_sync(&priv->work);
3238 flush_workqueue(priv->workqueue);
3239 destroy_workqueue(priv->workqueue);
3246 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3248 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3250 /* turn radio off */
3251 disassociate(usbdev, 0);
3253 cancel_delayed_work_sync(&priv->stats_work);
3254 cancel_delayed_work_sync(&priv->scan_work);
3255 cancel_work_sync(&priv->work);
3256 flush_workqueue(priv->workqueue);
3257 destroy_workqueue(priv->workqueue);
3259 if (priv && priv->wpa_ie_len)
3260 kfree(priv->wpa_ie);
3262 rndis_unbind(usbdev, intf);
3264 wiphy_unregister(priv->wdev.wiphy);
3265 wiphy_free(priv->wdev.wiphy);
3269 static int rndis_wlan_reset(struct usbnet *usbdev)
3271 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3274 devdbg(usbdev, "rndis_wlan_reset");
3276 retval = rndis_reset(usbdev);
3278 devwarn(usbdev, "rndis_reset() failed: %d", retval);
3280 /* rndis_reset cleared multicast list, so restore here.
3281 (set_multicast_list() also turns on current packet filter) */
3282 set_multicast_list(usbdev);
3284 queue_delayed_work(priv->workqueue, &priv->stats_work,
3285 round_jiffies_relative(STATS_UPDATE_JIFFIES));
3287 return deauthenticate(usbdev);
3291 static int rndis_wlan_stop(struct usbnet *usbdev)
3293 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3297 devdbg(usbdev, "rndis_wlan_stop");
3299 retval = disassociate(usbdev, 0);
3301 priv->work_pending = 0;
3302 cancel_delayed_work_sync(&priv->stats_work);
3303 cancel_delayed_work_sync(&priv->scan_work);
3304 cancel_work_sync(&priv->work);
3305 flush_workqueue(priv->workqueue);
3307 if (priv->scan_request) {
3308 cfg80211_scan_done(priv->scan_request, true);
3309 priv->scan_request = NULL;
3312 /* Set current packet filter zero to block receiving data packets from
3315 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3322 static const struct driver_info bcm4320b_info = {
3323 .description = "Wireless RNDIS device, BCM4320b based",
3324 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3325 FLAG_AVOID_UNLINK_URBS,
3326 .bind = rndis_wlan_bind,
3327 .unbind = rndis_wlan_unbind,
3328 .status = rndis_status,
3329 .rx_fixup = rndis_rx_fixup,
3330 .tx_fixup = rndis_tx_fixup,
3331 .reset = rndis_wlan_reset,
3332 .stop = rndis_wlan_stop,
3333 .early_init = bcm4320b_early_init,
3334 .indication = rndis_wlan_indication,
3337 static const struct driver_info bcm4320a_info = {
3338 .description = "Wireless RNDIS device, BCM4320a based",
3339 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3340 FLAG_AVOID_UNLINK_URBS,
3341 .bind = rndis_wlan_bind,
3342 .unbind = rndis_wlan_unbind,
3343 .status = rndis_status,
3344 .rx_fixup = rndis_rx_fixup,
3345 .tx_fixup = rndis_tx_fixup,
3346 .reset = rndis_wlan_reset,
3347 .stop = rndis_wlan_stop,
3348 .early_init = bcm4320a_early_init,
3349 .indication = rndis_wlan_indication,
3352 static const struct driver_info rndis_wlan_info = {
3353 .description = "Wireless RNDIS device",
3354 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3355 FLAG_AVOID_UNLINK_URBS,
3356 .bind = rndis_wlan_bind,
3357 .unbind = rndis_wlan_unbind,
3358 .status = rndis_status,
3359 .rx_fixup = rndis_rx_fixup,
3360 .tx_fixup = rndis_tx_fixup,
3361 .reset = rndis_wlan_reset,
3362 .stop = rndis_wlan_stop,
3363 .early_init = bcm4320a_early_init,
3364 .indication = rndis_wlan_indication,
3367 /*-------------------------------------------------------------------------*/
3369 static const struct usb_device_id products [] = {
3370 #define RNDIS_MASTER_INTERFACE \
3371 .bInterfaceClass = USB_CLASS_COMM, \
3372 .bInterfaceSubClass = 2 /* ACM */, \
3373 .bInterfaceProtocol = 0x0ff
3375 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3376 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3379 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3380 | USB_DEVICE_ID_MATCH_DEVICE,
3382 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3383 RNDIS_MASTER_INTERFACE,
3384 .driver_info = (unsigned long) &bcm4320b_info,
3386 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3387 | USB_DEVICE_ID_MATCH_DEVICE,
3389 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3390 RNDIS_MASTER_INTERFACE,
3391 .driver_info = (unsigned long) &bcm4320b_info,
3393 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3394 | USB_DEVICE_ID_MATCH_DEVICE,
3396 .idProduct = 0x011b, /* Belkin F5D7051 */
3397 RNDIS_MASTER_INTERFACE,
3398 .driver_info = (unsigned long) &bcm4320b_info,
3400 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3401 | USB_DEVICE_ID_MATCH_DEVICE,
3402 .idVendor = 0x1799, /* Belkin has two vendor ids */
3403 .idProduct = 0x011b, /* Belkin F5D7051 */
3404 RNDIS_MASTER_INTERFACE,
3405 .driver_info = (unsigned long) &bcm4320b_info,
3407 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3408 | USB_DEVICE_ID_MATCH_DEVICE,
3410 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3411 RNDIS_MASTER_INTERFACE,
3412 .driver_info = (unsigned long) &bcm4320b_info,
3414 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3415 | USB_DEVICE_ID_MATCH_DEVICE,
3417 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3418 RNDIS_MASTER_INTERFACE,
3419 .driver_info = (unsigned long) &bcm4320b_info,
3421 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3422 | USB_DEVICE_ID_MATCH_DEVICE,
3424 .idProduct = 0x1717, /* Asus WL169gE */
3425 RNDIS_MASTER_INTERFACE,
3426 .driver_info = (unsigned long) &bcm4320b_info,
3428 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3429 | USB_DEVICE_ID_MATCH_DEVICE,
3431 .idProduct = 0xd11b, /* Eminent EM4045 */
3432 RNDIS_MASTER_INTERFACE,
3433 .driver_info = (unsigned long) &bcm4320b_info,
3435 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3436 | USB_DEVICE_ID_MATCH_DEVICE,
3438 .idProduct = 0x0715, /* BT Voyager 1055 */
3439 RNDIS_MASTER_INTERFACE,
3440 .driver_info = (unsigned long) &bcm4320b_info,
3442 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3443 * parameters available, hardware probably contain older firmware version with
3444 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3447 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3448 | USB_DEVICE_ID_MATCH_DEVICE,
3450 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3451 RNDIS_MASTER_INTERFACE,
3452 .driver_info = (unsigned long) &bcm4320a_info,
3454 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3455 | USB_DEVICE_ID_MATCH_DEVICE,
3457 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3458 RNDIS_MASTER_INTERFACE,
3459 .driver_info = (unsigned long) &bcm4320a_info,
3461 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3462 | USB_DEVICE_ID_MATCH_DEVICE,
3464 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3465 RNDIS_MASTER_INTERFACE,
3466 .driver_info = (unsigned long) &bcm4320a_info,
3468 /* Generic Wireless RNDIS devices that we don't have exact
3469 * idVendor/idProduct/chip yet.
3472 /* RNDIS is MSFT's un-official variant of CDC ACM */
3473 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3474 .driver_info = (unsigned long) &rndis_wlan_info,
3476 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3477 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3478 .driver_info = (unsigned long) &rndis_wlan_info,
3482 MODULE_DEVICE_TABLE(usb, products);
3484 static struct usb_driver rndis_wlan_driver = {
3485 .name = "rndis_wlan",
3486 .id_table = products,
3487 .probe = usbnet_probe,
3488 .disconnect = usbnet_disconnect,
3489 .suspend = usbnet_suspend,
3490 .resume = usbnet_resume,
3493 static int __init rndis_wlan_init(void)
3495 return usb_register(&rndis_wlan_driver);
3497 module_init(rndis_wlan_init);
3499 static void __exit rndis_wlan_exit(void)
3501 usb_deregister(&rndis_wlan_driver);
3503 module_exit(rndis_wlan_exit);
3505 MODULE_AUTHOR("Bjorge Dijkstra");
3506 MODULE_AUTHOR("Jussi Kivilinna");
3507 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3508 MODULE_LICENSE("GPL");