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_PERMANENT_ADDRESS cpu_to_le32(0x01010101)
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)
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_PMKID cpu_to_le32(0x0d010123)
122 #define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
123 #define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
124 #define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
125 #define OID_802_11_RSSI cpu_to_le32(0x0d010206)
126 #define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
127 #define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
128 #define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
129 #define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
130 #define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
131 #define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
134 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
135 #define WL_NOISE -96 /* typical noise level in dBm */
136 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
139 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
140 * based on wireless rndis) has default txpower of 13dBm.
141 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
142 * 100% : 20 mW ~ 13dBm
143 * 75% : 15 mW ~ 12dBm
144 * 50% : 10 mW ~ 10dBm
147 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
148 #define BCM4320_DEFAULT_TXPOWER_DBM_75 12
149 #define BCM4320_DEFAULT_TXPOWER_DBM_50 10
150 #define BCM4320_DEFAULT_TXPOWER_DBM_25 7
153 /* codes for "status" field of completion messages */
154 #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
155 #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
158 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
159 * slightly modified for datatype endianess, etc
161 #define NDIS_802_11_LENGTH_SSID 32
162 #define NDIS_802_11_LENGTH_RATES 8
163 #define NDIS_802_11_LENGTH_RATES_EX 16
165 enum ndis_80211_net_type {
166 NDIS_80211_TYPE_FREQ_HOP,
167 NDIS_80211_TYPE_DIRECT_SEQ,
168 NDIS_80211_TYPE_OFDM_A,
169 NDIS_80211_TYPE_OFDM_G
172 enum ndis_80211_net_infra {
173 NDIS_80211_INFRA_ADHOC,
174 NDIS_80211_INFRA_INFRA,
175 NDIS_80211_INFRA_AUTO_UNKNOWN
178 enum ndis_80211_auth_mode {
179 NDIS_80211_AUTH_OPEN,
180 NDIS_80211_AUTH_SHARED,
181 NDIS_80211_AUTH_AUTO_SWITCH,
183 NDIS_80211_AUTH_WPA_PSK,
184 NDIS_80211_AUTH_WPA_NONE,
185 NDIS_80211_AUTH_WPA2,
186 NDIS_80211_AUTH_WPA2_PSK
189 enum ndis_80211_encr_status {
190 NDIS_80211_ENCR_WEP_ENABLED,
191 NDIS_80211_ENCR_DISABLED,
192 NDIS_80211_ENCR_WEP_KEY_ABSENT,
193 NDIS_80211_ENCR_NOT_SUPPORTED,
194 NDIS_80211_ENCR_TKIP_ENABLED,
195 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
196 NDIS_80211_ENCR_CCMP_ENABLED,
197 NDIS_80211_ENCR_CCMP_KEY_ABSENT
200 enum ndis_80211_priv_filter {
201 NDIS_80211_PRIV_ACCEPT_ALL,
202 NDIS_80211_PRIV_8021X_WEP
205 enum ndis_80211_addkey_bits {
206 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
207 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
208 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
209 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
212 enum ndis_80211_addwep_bits {
213 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
214 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
217 struct ndis_80211_ssid {
219 u8 essid[NDIS_802_11_LENGTH_SSID];
220 } __attribute__((packed));
222 struct ndis_80211_conf_freq_hop {
227 } __attribute__((packed));
229 struct ndis_80211_conf {
231 __le32 beacon_period;
234 struct ndis_80211_conf_freq_hop fh_config;
235 } __attribute__((packed));
237 struct ndis_80211_bssid_ex {
241 struct ndis_80211_ssid ssid;
245 struct ndis_80211_conf config;
247 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
250 } __attribute__((packed));
252 struct ndis_80211_bssid_list_ex {
254 struct ndis_80211_bssid_ex bssid[0];
255 } __attribute__((packed));
257 struct ndis_80211_fixed_ies {
259 __le16 beacon_interval;
261 } __attribute__((packed));
263 struct ndis_80211_wep_key {
268 } __attribute__((packed));
270 struct ndis_80211_key {
278 } __attribute__((packed));
280 struct ndis_80211_remove_key {
284 } __attribute__((packed));
286 struct ndis_config_param {
292 } __attribute__((packed));
294 struct ndis_80211_assoc_info {
299 __le16 listen_interval;
300 u8 cur_ap_address[6];
302 __le32 req_ie_length;
303 __le32 offset_req_ies;
310 __le32 resp_ie_length;
311 __le32 offset_resp_ies;
312 } __attribute__((packed));
314 /* these have to match what is in wpa_supplicant */
315 enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
316 enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
318 enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE,
319 KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE };
324 #define NET_TYPE_11FB 0
326 #define CAP_MODE_80211A 1
327 #define CAP_MODE_80211B 2
328 #define CAP_MODE_80211G 4
329 #define CAP_MODE_MASK 7
331 #define WORK_LINK_UP (1<<0)
332 #define WORK_LINK_DOWN (1<<1)
333 #define WORK_SET_MULTICAST_LIST (1<<2)
335 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
337 static const struct ieee80211_channel rndis_channels[] = {
338 { .center_freq = 2412 },
339 { .center_freq = 2417 },
340 { .center_freq = 2422 },
341 { .center_freq = 2427 },
342 { .center_freq = 2432 },
343 { .center_freq = 2437 },
344 { .center_freq = 2442 },
345 { .center_freq = 2447 },
346 { .center_freq = 2452 },
347 { .center_freq = 2457 },
348 { .center_freq = 2462 },
349 { .center_freq = 2467 },
350 { .center_freq = 2472 },
351 { .center_freq = 2484 },
354 static const struct ieee80211_rate rndis_rates[] = {
356 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
357 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
358 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
369 /* RNDIS device private data */
370 struct rndis_wlan_private {
371 struct usbnet *usbdev;
373 struct wireless_dev wdev;
375 struct cfg80211_scan_request *scan_request;
377 struct workqueue_struct *workqueue;
378 struct delayed_work stats_work;
379 struct delayed_work scan_work;
380 struct work_struct work;
381 struct mutex command_lock;
382 spinlock_t stats_lock;
383 unsigned long work_pending;
385 struct ieee80211_supported_band band;
386 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
387 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
389 struct iw_statistics iwstats;
390 struct iw_statistics privstats;
395 /* module parameters */
396 char param_country[4];
397 int param_frameburst;
398 int param_afterburner;
399 int param_power_save;
400 int param_power_output;
401 int param_roamtrigger;
403 u32 param_workaround_interval;
408 struct ndis_80211_ssid essid;
410 /* encryption stuff */
411 int encr_tx_key_index;
412 char encr_keys[4][32];
414 char encr_key_wpa[4];
421 int wpa_cipher_group;
423 u8 command_buffer[COMMAND_BUFFER_SIZE];
429 static int rndis_change_virtual_intf(struct wiphy *wiphy,
430 struct net_device *dev,
431 enum nl80211_iftype type, u32 *flags,
432 struct vif_params *params);
434 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
435 struct cfg80211_scan_request *request);
437 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
439 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
441 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
443 static struct cfg80211_ops rndis_config_ops = {
444 .change_virtual_intf = rndis_change_virtual_intf,
446 .set_wiphy_params = rndis_set_wiphy_params,
447 .set_tx_power = rndis_set_tx_power,
448 .get_tx_power = rndis_get_tx_power,
451 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
454 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
455 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
459 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
461 return (struct rndis_wlan_private *)dev->driver_priv;
465 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
467 switch (priv->param_power_output) {
470 return BCM4320_DEFAULT_TXPOWER_DBM_100;
472 return BCM4320_DEFAULT_TXPOWER_DBM_75;
474 return BCM4320_DEFAULT_TXPOWER_DBM_50;
476 return BCM4320_DEFAULT_TXPOWER_DBM_25;
481 /* translate error code */
482 static int rndis_error_status(__le32 rndis_status)
485 switch (rndis_status) {
486 case RNDIS_STATUS_SUCCESS:
489 case RNDIS_STATUS_FAILURE:
490 case RNDIS_STATUS_INVALID_DATA:
493 case RNDIS_STATUS_NOT_SUPPORTED:
496 case RNDIS_STATUS_ADAPTER_NOT_READY:
497 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
505 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
507 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
510 struct rndis_msg_hdr *header;
511 struct rndis_query *get;
512 struct rndis_query_c *get_c;
516 buflen = *len + sizeof(*u.get);
517 if (buflen < CONTROL_BUFFER_SIZE)
518 buflen = CONTROL_BUFFER_SIZE;
520 if (buflen > COMMAND_BUFFER_SIZE) {
521 u.buf = kmalloc(buflen, GFP_KERNEL);
525 u.buf = priv->command_buffer;
528 mutex_lock(&priv->command_lock);
530 memset(u.get, 0, sizeof *u.get);
531 u.get->msg_type = RNDIS_MSG_QUERY;
532 u.get->msg_len = cpu_to_le32(sizeof *u.get);
535 ret = rndis_command(dev, u.header, buflen);
537 ret = le32_to_cpu(u.get_c->len);
538 *len = (*len > ret) ? ret : *len;
539 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
540 ret = rndis_error_status(u.get_c->status);
543 mutex_unlock(&priv->command_lock);
545 if (u.buf != priv->command_buffer)
551 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
553 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
556 struct rndis_msg_hdr *header;
557 struct rndis_set *set;
558 struct rndis_set_c *set_c;
562 buflen = len + sizeof(*u.set);
563 if (buflen < CONTROL_BUFFER_SIZE)
564 buflen = CONTROL_BUFFER_SIZE;
566 if (buflen > COMMAND_BUFFER_SIZE) {
567 u.buf = kmalloc(buflen, GFP_KERNEL);
571 u.buf = priv->command_buffer;
574 mutex_lock(&priv->command_lock);
576 memset(u.set, 0, sizeof *u.set);
577 u.set->msg_type = RNDIS_MSG_SET;
578 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
580 u.set->len = cpu_to_le32(len);
581 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
582 u.set->handle = cpu_to_le32(0);
583 memcpy(u.buf + sizeof(*u.set), data, len);
585 ret = rndis_command(dev, u.header, buflen);
587 ret = rndis_error_status(u.set_c->status);
589 mutex_unlock(&priv->command_lock);
591 if (u.buf != priv->command_buffer)
597 static int rndis_reset(struct usbnet *usbdev)
599 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
600 struct rndis_reset *reset;
603 mutex_lock(&priv->command_lock);
605 reset = (void *)priv->command_buffer;
606 memset(reset, 0, sizeof(*reset));
607 reset->msg_type = RNDIS_MSG_RESET;
608 reset->msg_len = cpu_to_le32(sizeof(*reset));
609 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
611 mutex_unlock(&priv->command_lock);
620 * Specs say that we can only set config parameters only soon after device
622 * value_type: 0 = u32, 2 = unicode string
624 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
625 int value_type, void *value)
627 struct ndis_config_param *infobuf;
628 int value_len, info_len, param_len, ret, i;
633 value_len = sizeof(__le32);
634 else if (value_type == 2)
635 value_len = strlen(value) * sizeof(__le16);
639 param_len = strlen(param) * sizeof(__le16);
640 info_len = sizeof(*infobuf) + param_len + value_len;
645 infobuf = kmalloc(info_len, GFP_KERNEL);
651 /* extra 12 bytes are for padding (debug output) */
652 memset(infobuf, 0xCC, info_len + 12);
656 devdbg(dev, "setting config parameter: %s, value: %s",
659 devdbg(dev, "setting config parameter: %s, value: %d",
660 param, *(u32 *)value);
662 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
663 infobuf->name_length = cpu_to_le32(param_len);
664 infobuf->type = cpu_to_le32(value_type);
665 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
666 infobuf->value_length = cpu_to_le32(value_len);
668 /* simple string to unicode string conversion */
669 unibuf = (void *)infobuf + sizeof(*infobuf);
670 for (i = 0; i < param_len / sizeof(__le16); i++)
671 unibuf[i] = cpu_to_le16(param[i]);
673 if (value_type == 2) {
674 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
675 for (i = 0; i < value_len / sizeof(__le16); i++)
676 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
678 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
679 *dst_value = cpu_to_le32(*(u32 *)value);
683 devdbg(dev, "info buffer (len: %d):", info_len);
684 for (i = 0; i < info_len; i += 12) {
685 u32 *tmp = (u32 *)((u8 *)infobuf + i);
686 devdbg(dev, "%08X:%08X:%08X",
689 cpu_to_be32(tmp[2]));
693 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
696 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
702 static int rndis_set_config_parameter_str(struct usbnet *dev,
703 char *param, char *value)
705 return(rndis_set_config_parameter(dev, param, 2, value));
708 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
709 char *param, u32 value)
711 return(rndis_set_config_parameter(dev, param, 0, &value));
716 * data conversion functions
718 static int level_to_qual(int level)
720 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
721 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
725 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
731 /* see comment in wireless.h above the "struct iw_freq"
732 * definition for an explanation of this if
733 * NOTE: 1000000 is due to the kHz
735 if (dsconfig > 1000000) {
736 freq->m = dsconfig / 10;
741 /* convert from kHz to Hz */
746 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
748 if (freq->m < 1000 && freq->e == 0) {
749 if (freq->m >= 1 && freq->m <= 14)
750 *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
756 for (i = freq->e; i > 0; i--)
769 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
771 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
776 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
783 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
785 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
786 tmp[le32_to_cpu(ssid->length)] = 0;
787 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
794 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
796 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
799 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
801 memcpy(&priv->essid, ssid, sizeof(priv->essid));
803 devdbg(usbdev, "set_essid: radio_on = 1");
810 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
815 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
818 memset(bssid, 0, ETH_ALEN);
823 static int get_association_info(struct usbnet *usbdev,
824 struct ndis_80211_assoc_info *info, int len)
826 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
830 static int is_associated(struct usbnet *usbdev)
835 ret = get_bssid(usbdev, bssid);
837 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
841 static int disassociate(struct usbnet *usbdev, int reset_ssid)
843 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
844 struct ndis_80211_ssid ssid;
847 if (priv->radio_on) {
848 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
851 devdbg(usbdev, "disassociate: radio_on = 0");
858 /* disassociate causes radio to be turned off; if reset_ssid
859 * is given, set random ssid to enable radio */
861 ssid.length = cpu_to_le32(sizeof(ssid.essid));
862 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
864 ssid.essid[1] = 0xff;
865 for (i = 2; i < sizeof(ssid.essid); i++)
866 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
867 ret = set_essid(usbdev, &ssid);
873 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
875 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
879 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
880 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
882 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
883 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
884 auth_mode = NDIS_80211_AUTH_WPA2;
886 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
887 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
888 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
889 auth_mode = NDIS_80211_AUTH_WPA;
890 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
891 auth_mode = NDIS_80211_AUTH_WPA_PSK;
893 auth_mode = NDIS_80211_AUTH_WPA_NONE;
894 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
895 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
896 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
898 auth_mode = NDIS_80211_AUTH_SHARED;
900 auth_mode = NDIS_80211_AUTH_OPEN;
902 tmp = cpu_to_le32(auth_mode);
903 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
906 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
910 priv->wpa_version = wpa_version;
911 priv->wpa_authalg = authalg;
916 static int set_priv_filter(struct usbnet *usbdev)
918 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
921 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
923 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
924 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
925 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
927 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
929 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
934 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
936 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
940 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
944 if (pairwise & IW_AUTH_CIPHER_CCMP)
945 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
946 else if (pairwise & IW_AUTH_CIPHER_TKIP)
947 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
949 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
950 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
951 else if (groupwise & IW_AUTH_CIPHER_CCMP)
952 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
953 else if (groupwise & IW_AUTH_CIPHER_TKIP)
954 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
956 encr_mode = NDIS_80211_ENCR_DISABLED;
958 tmp = cpu_to_le32(encr_mode);
959 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
962 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
966 priv->wpa_cipher_pair = pairwise;
967 priv->wpa_cipher_group = groupwise;
972 static int set_assoc_params(struct usbnet *usbdev)
974 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
976 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
977 set_priv_filter(usbdev);
978 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
984 static int set_infra_mode(struct usbnet *usbdev, int mode)
986 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
990 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
992 tmp = cpu_to_le32(mode);
993 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
996 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
1000 /* NDIS drivers clear keys when infrastructure mode is
1001 * changed. But Linux tools assume otherwise. So set the
1003 if (priv->wpa_keymgmt == 0 ||
1004 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
1005 for (i = 0; i < 4; i++) {
1006 if (priv->encr_key_len[i] > 0 && !priv->encr_key_wpa[i])
1007 add_wep_key(usbdev, priv->encr_keys[i],
1008 priv->encr_key_len[i], i);
1012 priv->infra_mode = mode;
1017 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1021 devdbg(usbdev, "set_rts_threshold %i", rts_threshold);
1023 if (rts_threshold < 0 || rts_threshold > 2347)
1024 rts_threshold = 2347;
1026 tmp = cpu_to_le32(rts_threshold);
1027 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1032 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1036 devdbg(usbdev, "set_frag_threshold %i", frag_threshold);
1038 if (frag_threshold < 256 || frag_threshold > 2346)
1039 frag_threshold = 2346;
1041 tmp = cpu_to_le32(frag_threshold);
1042 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1047 static void set_default_iw_params(struct usbnet *usbdev)
1049 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1051 priv->wpa_keymgmt = 0;
1052 priv->wpa_version = 0;
1054 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1055 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1056 IW_AUTH_ALG_OPEN_SYSTEM);
1057 set_priv_filter(usbdev);
1058 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1062 static int deauthenticate(struct usbnet *usbdev)
1066 ret = disassociate(usbdev, 1);
1067 set_default_iw_params(usbdev);
1072 /* index must be 0 - N, as per NDIS */
1073 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
1075 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1076 struct ndis_80211_wep_key ndis_key;
1079 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
1082 memset(&ndis_key, 0, sizeof(ndis_key));
1084 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1085 ndis_key.length = cpu_to_le32(key_len);
1086 ndis_key.index = cpu_to_le32(index);
1087 memcpy(&ndis_key.material, key, key_len);
1089 if (index == priv->encr_tx_key_index) {
1090 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1091 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1092 IW_AUTH_CIPHER_NONE);
1094 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1098 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1101 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1106 priv->encr_key_len[index] = key_len;
1107 priv->encr_key_wpa[index] = 0;
1108 memcpy(&priv->encr_keys[index], key, key_len);
1114 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1115 int index, const struct sockaddr *addr,
1116 const u8 *rx_seq, int alg, int flags)
1118 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1119 struct ndis_80211_key ndis_key;
1122 if (index < 0 || index >= 4)
1124 if (key_len > sizeof(ndis_key.material) || key_len < 0)
1126 if ((flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) && !rx_seq)
1128 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !addr)
1131 devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1132 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1133 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1134 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1136 memset(&ndis_key, 0, sizeof(ndis_key));
1138 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1139 sizeof(ndis_key.material) + key_len);
1140 ndis_key.length = cpu_to_le32(key_len);
1141 ndis_key.index = cpu_to_le32(index) | flags;
1143 if (alg == IW_ENCODE_ALG_TKIP && key_len == 32) {
1144 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1145 * different order than NDIS spec, so swap the order here. */
1146 memcpy(ndis_key.material, key, 16);
1147 memcpy(ndis_key.material + 16, key + 24, 8);
1148 memcpy(ndis_key.material + 24, key + 16, 8);
1150 memcpy(ndis_key.material, key, key_len);
1152 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1153 memcpy(ndis_key.rsc, rx_seq, 6);
1155 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1157 memcpy(ndis_key.bssid, addr->sa_data, ETH_ALEN);
1160 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1161 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1163 get_bssid(usbdev, ndis_key.bssid);
1166 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1167 le32_to_cpu(ndis_key.size));
1168 devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1172 priv->encr_key_len[index] = key_len;
1173 priv->encr_key_wpa[index] = 1;
1175 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1176 priv->encr_tx_key_index = index;
1182 /* remove_key is for both wep and wpa */
1183 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1185 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1186 struct ndis_80211_remove_key remove_key;
1190 if (priv->encr_key_len[index] == 0)
1193 priv->encr_key_len[index] = 0;
1194 priv->encr_key_wpa[index] = 0;
1195 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1197 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
1198 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
1199 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
1200 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
1201 remove_key.size = cpu_to_le32(sizeof(remove_key));
1202 remove_key.index = cpu_to_le32(index);
1205 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
1207 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1208 memcpy(remove_key.bssid, bssid,
1209 sizeof(remove_key.bssid));
1211 memset(remove_key.bssid, 0xff,
1212 sizeof(remove_key.bssid));
1214 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1215 sizeof(remove_key));
1219 keyindex = cpu_to_le32(index);
1220 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1224 "removing encryption key %d failed (%08X)",
1230 /* if it is transmit key, disable encryption */
1231 if (index == priv->encr_tx_key_index)
1232 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1238 static void set_multicast_list(struct usbnet *usbdev)
1240 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1241 struct dev_mc_list *mclist;
1246 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1248 if (usbdev->net->flags & IFF_PROMISC) {
1249 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1250 RNDIS_PACKET_TYPE_ALL_LOCAL;
1251 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1252 usbdev->net->mc_count > priv->multicast_size) {
1253 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1254 } else if (usbdev->net->mc_count > 0) {
1255 size = min(priv->multicast_size, usbdev->net->mc_count);
1256 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1259 "couldn't alloc %d bytes of memory",
1264 mclist = usbdev->net->mc_list;
1265 for (i = 0; i < size && mclist; mclist = mclist->next) {
1266 if (mclist->dmi_addrlen != ETH_ALEN)
1269 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1273 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1275 if (ret == 0 && i > 0)
1276 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1278 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1280 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1281 i, priv->multicast_size, ret);
1286 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1289 devwarn(usbdev, "couldn't set packet filter: %08x",
1290 le32_to_cpu(filter));
1293 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1294 le32_to_cpu(filter), ret);
1301 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1302 struct net_device *dev,
1303 enum nl80211_iftype type, u32 *flags,
1304 struct vif_params *params)
1306 struct usbnet *usbdev = netdev_priv(dev);
1310 case NL80211_IFTYPE_ADHOC:
1311 mode = NDIS_80211_INFRA_ADHOC;
1313 case NL80211_IFTYPE_STATION:
1314 mode = NDIS_80211_INFRA_INFRA;
1320 return set_infra_mode(usbdev, mode);
1324 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1326 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1327 struct usbnet *usbdev = priv->usbdev;
1330 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1331 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1336 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1337 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1346 static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type,
1349 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1350 struct usbnet *usbdev = priv->usbdev;
1352 devdbg(usbdev, "rndis_set_tx_power type:0x%x dbm:%i", type, dbm);
1354 /* Device doesn't support changing txpower after initialization, only
1355 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1358 if (type == TX_POWER_AUTOMATIC || dbm == get_bcm4320_power_dbm(priv)) {
1359 if (!priv->radio_on)
1360 disassociate(usbdev, 1); /* turn on radio */
1369 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1371 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1372 struct usbnet *usbdev = priv->usbdev;
1374 *dbm = get_bcm4320_power_dbm(priv);
1376 devdbg(usbdev, "rndis_get_tx_power dbm:%i", *dbm);
1382 #define SCAN_DELAY_JIFFIES (HZ)
1383 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1384 struct cfg80211_scan_request *request)
1386 struct usbnet *usbdev = netdev_priv(dev);
1387 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1391 devdbg(usbdev, "cfg80211.scan");
1396 if (priv->scan_request && priv->scan_request != request)
1399 priv->scan_request = request;
1401 tmp = cpu_to_le32(1);
1402 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1405 /* Wait before retrieving scan results from device */
1406 queue_delayed_work(priv->workqueue, &priv->scan_work,
1407 SCAN_DELAY_JIFFIES);
1414 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1415 struct ndis_80211_bssid_ex *bssid)
1417 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1418 struct ieee80211_channel *channel;
1422 u16 beacon_interval;
1423 struct ndis_80211_fixed_ies *fixed;
1424 int ie_len, bssid_len;
1427 /* parse bssid structure */
1428 bssid_len = le32_to_cpu(bssid->length);
1430 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1431 sizeof(struct ndis_80211_fixed_ies))
1434 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1436 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1437 ie_len = min(bssid_len - (int)sizeof(*bssid),
1438 (int)le32_to_cpu(bssid->ie_length));
1439 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1443 /* extract data for cfg80211_inform_bss */
1444 channel = ieee80211_get_channel(priv->wdev.wiphy,
1445 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1449 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1450 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1451 capability = le16_to_cpu(fixed->capabilities);
1452 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1454 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1455 timestamp, capability, beacon_interval, ie, ie_len, signal,
1460 static int rndis_check_bssid_list(struct usbnet *usbdev)
1463 struct ndis_80211_bssid_list_ex *bssid_list;
1464 struct ndis_80211_bssid_ex *bssid;
1465 int ret = -EINVAL, len, count, bssid_len;
1467 devdbg(usbdev, "check_bssid_list");
1469 len = CONTROL_BUFFER_SIZE;
1470 buf = kmalloc(len, GFP_KERNEL);
1476 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1481 bssid = bssid_list->bssid;
1482 bssid_len = le32_to_cpu(bssid->length);
1483 count = le32_to_cpu(bssid_list->num_items);
1484 devdbg(usbdev, "check_bssid_list: %d BSSIDs found", count);
1486 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1487 rndis_bss_info_update(usbdev, bssid);
1489 bssid = (void *)bssid + bssid_len;
1490 bssid_len = le32_to_cpu(bssid->length);
1500 static void rndis_get_scan_results(struct work_struct *work)
1502 struct rndis_wlan_private *priv =
1503 container_of(work, struct rndis_wlan_private, scan_work.work);
1504 struct usbnet *usbdev = priv->usbdev;
1507 devdbg(usbdev, "get_scan_results");
1509 if (!priv->scan_request)
1512 ret = rndis_check_bssid_list(usbdev);
1514 cfg80211_scan_done(priv->scan_request, ret < 0);
1516 priv->scan_request = NULL;
1521 * wireless extension handlers
1524 static int rndis_iw_commit(struct net_device *dev,
1525 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1532 static int rndis_iw_set_essid(struct net_device *dev,
1533 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1535 struct ndis_80211_ssid ssid;
1536 int length = wrqu->essid.length;
1537 struct usbnet *usbdev = netdev_priv(dev);
1539 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1540 wrqu->essid.flags, wrqu->essid.length, essid);
1542 if (length > NDIS_802_11_LENGTH_SSID)
1543 length = NDIS_802_11_LENGTH_SSID;
1545 ssid.length = cpu_to_le32(length);
1547 memcpy(ssid.essid, essid, length);
1549 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1551 set_assoc_params(usbdev);
1553 if (!wrqu->essid.flags || length == 0)
1554 return disassociate(usbdev, 1);
1556 return set_essid(usbdev, &ssid);
1560 static int rndis_iw_get_essid(struct net_device *dev,
1561 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1563 struct ndis_80211_ssid ssid;
1564 struct usbnet *usbdev = netdev_priv(dev);
1567 ret = get_essid(usbdev, &ssid);
1569 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1570 wrqu->essid.flags = 1;
1571 wrqu->essid.length = le32_to_cpu(ssid.length);
1572 memcpy(essid, ssid.essid, wrqu->essid.length);
1573 essid[wrqu->essid.length] = 0;
1575 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1576 wrqu->essid.flags = 0;
1577 wrqu->essid.length = 0;
1579 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1584 static int rndis_iw_get_bssid(struct net_device *dev,
1585 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1587 struct usbnet *usbdev = netdev_priv(dev);
1588 unsigned char bssid[ETH_ALEN];
1591 ret = get_bssid(usbdev, bssid);
1594 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1596 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1598 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1599 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1605 static int rndis_iw_set_bssid(struct net_device *dev,
1606 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1608 struct usbnet *usbdev = netdev_priv(dev);
1609 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1612 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1614 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1616 /* user apps may set ap's mac address, which is not required;
1617 * they may fail to work if this function fails, so return
1620 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1626 static int rndis_iw_set_auth(struct net_device *dev,
1627 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1629 struct iw_param *p = &wrqu->param;
1630 struct usbnet *usbdev = netdev_priv(dev);
1631 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1632 int ret = -ENOTSUPP;
1634 switch (p->flags & IW_AUTH_INDEX) {
1635 case IW_AUTH_WPA_VERSION:
1636 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1637 priv->wpa_version = p->value;
1641 case IW_AUTH_CIPHER_PAIRWISE:
1642 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1643 priv->wpa_cipher_pair = p->value;
1647 case IW_AUTH_CIPHER_GROUP:
1648 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1649 priv->wpa_cipher_group = p->value;
1653 case IW_AUTH_KEY_MGMT:
1654 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1655 priv->wpa_keymgmt = p->value;
1659 case IW_AUTH_TKIP_COUNTERMEASURES:
1660 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1665 case IW_AUTH_DROP_UNENCRYPTED:
1666 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1670 case IW_AUTH_80211_AUTH_ALG:
1671 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1672 priv->wpa_authalg = p->value;
1676 case IW_AUTH_WPA_ENABLED:
1677 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1678 if (wrqu->param.value)
1679 deauthenticate(usbdev);
1683 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1684 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1689 case IW_AUTH_ROAMING_CONTROL:
1690 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1694 case IW_AUTH_PRIVACY_INVOKED:
1695 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1696 wrqu->param.flags & IW_AUTH_INDEX);
1700 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1701 p->flags & IW_AUTH_INDEX, p->value);
1707 static int rndis_iw_get_auth(struct net_device *dev,
1708 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1710 struct iw_param *p = &wrqu->param;
1711 struct usbnet *usbdev = netdev_priv(dev);
1712 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1714 switch (p->flags & IW_AUTH_INDEX) {
1715 case IW_AUTH_WPA_VERSION:
1716 p->value = priv->wpa_version;
1718 case IW_AUTH_CIPHER_PAIRWISE:
1719 p->value = priv->wpa_cipher_pair;
1721 case IW_AUTH_CIPHER_GROUP:
1722 p->value = priv->wpa_cipher_group;
1724 case IW_AUTH_KEY_MGMT:
1725 p->value = priv->wpa_keymgmt;
1727 case IW_AUTH_80211_AUTH_ALG:
1728 p->value = priv->wpa_authalg;
1731 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1732 wrqu->param.flags & IW_AUTH_INDEX);
1739 static int rndis_iw_set_encode(struct net_device *dev,
1740 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1742 struct usbnet *usbdev = netdev_priv(dev);
1743 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1744 int ret, index, key_len;
1747 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1749 /* iwconfig gives index as 1 - N */
1753 index = priv->encr_tx_key_index;
1755 if (index < 0 || index >= 4) {
1756 devwarn(usbdev, "encryption index out of range (%u)", index);
1760 /* remove key if disabled */
1761 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1762 if (remove_key(usbdev, index, NULL))
1768 /* global encryption state (for all keys) */
1769 if (wrqu->data.flags & IW_ENCODE_OPEN)
1770 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1771 IW_AUTH_ALG_OPEN_SYSTEM);
1772 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1773 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1774 IW_AUTH_ALG_SHARED_KEY);
1778 if (wrqu->data.length > 0) {
1779 key_len = wrqu->data.length;
1782 /* must be set as tx key */
1783 if (priv->encr_key_len[index] == 0)
1785 key_len = priv->encr_key_len[index];
1786 key = priv->encr_keys[index];
1787 priv->encr_tx_key_index = index;
1790 if (add_wep_key(usbdev, key, key_len, index) != 0)
1793 if (index == priv->encr_tx_key_index)
1794 /* ndis drivers want essid to be set after setting encr */
1795 set_essid(usbdev, &priv->essid);
1801 static int rndis_iw_set_encode_ext(struct net_device *dev,
1802 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1804 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1805 struct usbnet *usbdev = netdev_priv(dev);
1806 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1809 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1811 /* iwconfig gives index as 1 - N */
1815 keyidx = priv->encr_tx_key_index;
1817 if (keyidx < 0 || keyidx >= 4)
1820 if (ext->alg == WPA_ALG_WEP) {
1821 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1822 priv->encr_tx_key_index = keyidx;
1823 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1826 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1827 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1828 return remove_key(usbdev, keyidx, NULL);
1831 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID)
1832 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
1833 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY))
1834 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY;
1835 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1836 flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY;
1838 return add_wpa_key(usbdev, ext->key, ext->key_len, keyidx, &ext->addr,
1839 ext->rx_seq, ext->alg, flags);
1843 static int rndis_iw_set_genie(struct net_device *dev,
1844 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1846 struct usbnet *usbdev = netdev_priv(dev);
1847 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1853 for (j = 0; j < wrqu->data.length; j += 8)
1855 "SIOCSIWGENIE %04x - "
1856 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1857 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1858 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1860 /* clear existing IEs */
1861 if (priv->wpa_ie_len) {
1862 kfree(priv->wpa_ie);
1863 priv->wpa_ie_len = 0;
1867 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1869 priv->wpa_ie_len = wrqu->data.length;
1870 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1877 static int rndis_iw_get_genie(struct net_device *dev,
1878 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1880 struct usbnet *usbdev = netdev_priv(dev);
1881 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1883 devdbg(usbdev, "SIOCGIWGENIE");
1885 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1886 wrqu->data.length = 0;
1890 if (wrqu->data.length < priv->wpa_ie_len)
1893 wrqu->data.length = priv->wpa_ie_len;
1894 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1900 static int rndis_iw_set_freq(struct net_device *dev,
1901 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1903 struct usbnet *usbdev = netdev_priv(dev);
1904 struct ndis_80211_conf config;
1905 unsigned int dsconfig;
1908 /* this OID is valid only when not associated */
1909 if (is_associated(usbdev))
1913 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
1916 len = sizeof(config);
1917 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1919 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
1923 config.ds_config = cpu_to_le32(dsconfig);
1925 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
1926 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1931 static int rndis_iw_get_freq(struct net_device *dev,
1932 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1934 struct usbnet *usbdev = netdev_priv(dev);
1935 struct ndis_80211_conf config;
1938 len = sizeof(config);
1939 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1941 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
1943 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
1948 static int rndis_iw_get_rate(struct net_device *dev,
1949 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1951 struct usbnet *usbdev = netdev_priv(dev);
1956 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
1958 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
1959 wrqu->bitrate.disabled = 0;
1960 wrqu->bitrate.flags = 1;
1966 static int rndis_iw_set_mlme(struct net_device *dev,
1967 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1969 struct usbnet *usbdev = netdev_priv(dev);
1970 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1971 struct iw_mlme *mlme = (struct iw_mlme *)extra;
1972 unsigned char bssid[ETH_ALEN];
1974 get_bssid(usbdev, bssid);
1976 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
1979 switch (mlme->cmd) {
1980 case IW_MLME_DEAUTH:
1981 return deauthenticate(usbdev);
1982 case IW_MLME_DISASSOC:
1983 return disassociate(usbdev, priv->radio_on);
1992 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
1994 struct usbnet *usbdev = netdev_priv(dev);
1995 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1996 unsigned long flags;
1998 spin_lock_irqsave(&priv->stats_lock, flags);
1999 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
2000 spin_unlock_irqrestore(&priv->stats_lock, flags);
2002 return &priv->iwstats;
2006 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2007 static const iw_handler rndis_iw_handler[] =
2009 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
2010 IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname,
2011 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
2012 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
2013 IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode,
2014 IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode,
2015 IW_IOCTL(SIOCGIWRANGE) = (iw_handler) cfg80211_wext_giwrange,
2016 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
2017 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
2018 IW_IOCTL(SIOCSIWSCAN) = (iw_handler) cfg80211_wext_siwscan,
2019 IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan,
2020 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
2021 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
2022 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
2023 IW_IOCTL(SIOCSIWRTS) = (iw_handler) cfg80211_wext_siwrts,
2024 IW_IOCTL(SIOCGIWRTS) = (iw_handler) cfg80211_wext_giwrts,
2025 IW_IOCTL(SIOCSIWFRAG) = (iw_handler) cfg80211_wext_siwfrag,
2026 IW_IOCTL(SIOCGIWFRAG) = (iw_handler) cfg80211_wext_giwfrag,
2027 IW_IOCTL(SIOCSIWTXPOW) = (iw_handler) cfg80211_wext_siwtxpower,
2028 IW_IOCTL(SIOCGIWTXPOW) = (iw_handler) cfg80211_wext_giwtxpower,
2029 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2030 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2031 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2032 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2033 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2034 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2035 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2038 static const iw_handler rndis_wlan_private_handler[] = {
2041 static const struct iw_priv_args rndis_wlan_private_args[] = {
2045 static const struct iw_handler_def rndis_iw_handlers = {
2046 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2047 .num_private = ARRAY_SIZE(rndis_wlan_private_handler),
2048 .num_private_args = ARRAY_SIZE(rndis_wlan_private_args),
2049 .standard = (iw_handler *)rndis_iw_handler,
2050 .private = (iw_handler *)rndis_wlan_private_handler,
2051 .private_args = (struct iw_priv_args *)rndis_wlan_private_args,
2052 .get_wireless_stats = rndis_get_wireless_stats,
2056 static void rndis_wlan_worker(struct work_struct *work)
2058 struct rndis_wlan_private *priv =
2059 container_of(work, struct rndis_wlan_private, work);
2060 struct usbnet *usbdev = priv->usbdev;
2061 union iwreq_data evt;
2062 unsigned char bssid[ETH_ALEN];
2063 struct ndis_80211_assoc_info *info;
2064 int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32;
2067 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) {
2068 netif_carrier_on(usbdev->net);
2070 info = kzalloc(assoc_size, GFP_KERNEL);
2074 /* Get association info IEs from device and send them back to
2076 ret = get_association_info(usbdev, info, assoc_size);
2078 evt.data.length = le32_to_cpu(info->req_ie_length);
2079 if (evt.data.length > 0) {
2080 offset = le32_to_cpu(info->offset_req_ies);
2081 wireless_send_event(usbdev->net,
2082 IWEVASSOCREQIE, &evt,
2083 (char *)info + offset);
2086 evt.data.length = le32_to_cpu(info->resp_ie_length);
2087 if (evt.data.length > 0) {
2088 offset = le32_to_cpu(info->offset_resp_ies);
2089 wireless_send_event(usbdev->net,
2090 IWEVASSOCRESPIE, &evt,
2091 (char *)info + offset);
2098 ret = get_bssid(usbdev, bssid);
2101 evt.data.length = 0;
2102 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2103 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2107 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) {
2108 netif_carrier_off(usbdev->net);
2111 evt.data.length = 0;
2112 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2113 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2116 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2117 set_multicast_list(usbdev);
2120 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2122 struct usbnet *usbdev = netdev_priv(dev);
2123 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2125 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2128 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2129 queue_work(priv->workqueue, &priv->work);
2132 static void rndis_wlan_link_change(struct usbnet *usbdev, int state)
2134 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2136 /* queue work to avoid recursive calls into rndis_command */
2137 set_bit(state ? WORK_LINK_UP : WORK_LINK_DOWN, &priv->work_pending);
2138 queue_work(priv->workqueue, &priv->work);
2142 static int rndis_wlan_get_caps(struct usbnet *usbdev)
2147 } networks_supported;
2148 int len, retval, i, n;
2149 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2151 /* determine supported modes */
2152 len = sizeof(networks_supported);
2153 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2154 &networks_supported, &len);
2156 n = le32_to_cpu(networks_supported.num_items);
2159 for (i = 0; i < n; i++) {
2160 switch (le32_to_cpu(networks_supported.items[i])) {
2161 case NDIS_80211_TYPE_FREQ_HOP:
2162 case NDIS_80211_TYPE_DIRECT_SEQ:
2163 priv->caps |= CAP_MODE_80211B;
2165 case NDIS_80211_TYPE_OFDM_A:
2166 priv->caps |= CAP_MODE_80211A;
2168 case NDIS_80211_TYPE_OFDM_G:
2169 priv->caps |= CAP_MODE_80211G;
2179 #define STATS_UPDATE_JIFFIES (HZ)
2180 static void rndis_update_wireless_stats(struct work_struct *work)
2182 struct rndis_wlan_private *priv =
2183 container_of(work, struct rndis_wlan_private, stats_work.work);
2184 struct usbnet *usbdev = priv->usbdev;
2185 struct iw_statistics iwstats;
2188 unsigned long flags;
2189 int update_jiffies = STATS_UPDATE_JIFFIES;
2192 spin_lock_irqsave(&priv->stats_lock, flags);
2193 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2194 spin_unlock_irqrestore(&priv->stats_lock, flags);
2196 /* only update stats when connected */
2197 if (!is_associated(usbdev)) {
2198 iwstats.qual.qual = 0;
2199 iwstats.qual.level = 0;
2200 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2201 | IW_QUAL_LEVEL_UPDATED
2202 | IW_QUAL_NOISE_INVALID
2203 | IW_QUAL_QUAL_INVALID
2204 | IW_QUAL_LEVEL_INVALID;
2209 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2211 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2214 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2215 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2216 iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
2217 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2218 | IW_QUAL_LEVEL_UPDATED
2219 | IW_QUAL_NOISE_INVALID;
2222 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2225 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2227 iwstats.discard.misc += le32_to_cpu(tmp);
2230 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2232 iwstats.discard.misc += le32_to_cpu(tmp);
2235 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2237 iwstats.discard.misc += le32_to_cpu(tmp);
2239 /* Workaround transfer stalls on poor quality links.
2240 * TODO: find right way to fix these stalls (as stalls do not happen
2241 * with ndiswrapper/windows driver). */
2242 if (iwstats.qual.qual <= 25) {
2243 /* Decrease stats worker interval to catch stalls.
2244 * faster. Faster than 400-500ms causes packet loss,
2245 * Slower doesn't catch stalls fast enough.
2247 j = msecs_to_jiffies(priv->param_workaround_interval);
2248 if (j > STATS_UPDATE_JIFFIES)
2249 j = STATS_UPDATE_JIFFIES;
2254 /* Send scan OID. Use of both OIDs is required to get device
2257 tmp = cpu_to_le32(1);
2258 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2261 len = CONTROL_BUFFER_SIZE;
2262 buf = kmalloc(len, GFP_KERNEL);
2266 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2270 spin_lock_irqsave(&priv->stats_lock, flags);
2271 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2272 spin_unlock_irqrestore(&priv->stats_lock, flags);
2274 if (update_jiffies >= HZ)
2275 update_jiffies = round_jiffies_relative(update_jiffies);
2277 j = round_jiffies_relative(update_jiffies);
2278 if (abs(j - update_jiffies) <= 10)
2282 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2286 static int bcm4320a_early_init(struct usbnet *usbdev)
2288 /* bcm4320a doesn't handle configuration parameters well. Try
2289 * set any and you get partially zeroed mac and broken device.
2296 static int bcm4320b_early_init(struct usbnet *usbdev)
2298 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2301 /* Early initialization settings, setting these won't have effect
2302 * if called after generic_rndis_bind().
2305 priv->param_country[0] = modparam_country[0];
2306 priv->param_country[1] = modparam_country[1];
2307 priv->param_country[2] = 0;
2308 priv->param_frameburst = modparam_frameburst;
2309 priv->param_afterburner = modparam_afterburner;
2310 priv->param_power_save = modparam_power_save;
2311 priv->param_power_output = modparam_power_output;
2312 priv->param_roamtrigger = modparam_roamtrigger;
2313 priv->param_roamdelta = modparam_roamdelta;
2315 priv->param_country[0] = toupper(priv->param_country[0]);
2316 priv->param_country[1] = toupper(priv->param_country[1]);
2317 /* doesn't support EU as country code, use FI instead */
2318 if (!strcmp(priv->param_country, "EU"))
2319 strcpy(priv->param_country, "FI");
2321 if (priv->param_power_save < 0)
2322 priv->param_power_save = 0;
2323 else if (priv->param_power_save > 2)
2324 priv->param_power_save = 2;
2326 if (priv->param_power_output < 0)
2327 priv->param_power_output = 0;
2328 else if (priv->param_power_output > 3)
2329 priv->param_power_output = 3;
2331 if (priv->param_roamtrigger < -80)
2332 priv->param_roamtrigger = -80;
2333 else if (priv->param_roamtrigger > -60)
2334 priv->param_roamtrigger = -60;
2336 if (priv->param_roamdelta < 0)
2337 priv->param_roamdelta = 0;
2338 else if (priv->param_roamdelta > 2)
2339 priv->param_roamdelta = 2;
2341 if (modparam_workaround_interval < 0)
2342 priv->param_workaround_interval = 500;
2344 priv->param_workaround_interval = modparam_workaround_interval;
2346 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2347 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2348 priv->param_frameburst ? "1" : "0");
2349 rndis_set_config_parameter_str(usbdev, "Afterburner",
2350 priv->param_afterburner ? "1" : "0");
2351 sprintf(buf, "%d", priv->param_power_save);
2352 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2353 sprintf(buf, "%d", priv->param_power_output);
2354 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2355 sprintf(buf, "%d", priv->param_roamtrigger);
2356 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2357 sprintf(buf, "%d", priv->param_roamdelta);
2358 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2363 /* same as rndis_netdev_ops but with local multicast handler */
2364 static const struct net_device_ops rndis_wlan_netdev_ops = {
2365 .ndo_open = usbnet_open,
2366 .ndo_stop = usbnet_stop,
2367 .ndo_start_xmit = usbnet_start_xmit,
2368 .ndo_tx_timeout = usbnet_tx_timeout,
2369 .ndo_set_mac_address = eth_mac_addr,
2370 .ndo_validate_addr = eth_validate_addr,
2371 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
2375 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
2377 struct wiphy *wiphy;
2378 struct rndis_wlan_private *priv;
2382 /* allocate wiphy and rndis private data
2383 * NOTE: We only support a single virtual interface, so wiphy
2384 * and wireless_dev are somewhat synonymous for this device.
2386 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
2390 priv = wiphy_priv(wiphy);
2391 usbdev->net->ieee80211_ptr = &priv->wdev;
2392 priv->wdev.wiphy = wiphy;
2393 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2395 /* These have to be initialized before calling generic_rndis_bind().
2396 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
2398 usbdev->driver_priv = priv;
2399 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2400 priv->usbdev = usbdev;
2402 mutex_init(&priv->command_lock);
2403 spin_lock_init(&priv->stats_lock);
2405 /* because rndis_command() sleeps we need to use workqueue */
2406 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2407 INIT_WORK(&priv->work, rndis_wlan_worker);
2408 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2409 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2411 /* try bind rndis_host */
2412 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2416 /* generic_rndis_bind set packet filter to multicast_all+
2417 * promisc mode which doesn't work well for our devices (device
2418 * picks up rssi to closest station instead of to access point).
2420 * rndis_host wants to avoid all OID as much as possible
2421 * so do promisc/multicast handling in rndis_wlan.
2423 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
2425 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2426 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2430 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2432 priv->multicast_size = le32_to_cpu(tmp);
2433 if (retval < 0 || priv->multicast_size < 0)
2434 priv->multicast_size = 0;
2435 if (priv->multicast_size > 0)
2436 usbdev->net->flags |= IFF_MULTICAST;
2438 usbdev->net->flags &= ~IFF_MULTICAST;
2440 priv->iwstats.qual.qual = 0;
2441 priv->iwstats.qual.level = 0;
2442 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2443 | IW_QUAL_LEVEL_UPDATED
2444 | IW_QUAL_NOISE_INVALID
2445 | IW_QUAL_QUAL_INVALID
2446 | IW_QUAL_LEVEL_INVALID;
2448 /* fill-out wiphy structure and register w/ cfg80211 */
2449 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2450 wiphy->privid = rndis_wiphy_privid;
2451 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2452 | BIT(NL80211_IFTYPE_ADHOC);
2453 wiphy->max_scan_ssids = 1;
2455 /* TODO: fill-out band information based on priv->caps */
2456 rndis_wlan_get_caps(usbdev);
2458 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2459 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2460 priv->band.channels = priv->channels;
2461 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2462 priv->band.bitrates = priv->rates;
2463 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2464 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2465 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2467 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2469 if (wiphy_register(wiphy)) {
2474 set_default_iw_params(usbdev);
2476 /* set default rts/frag */
2477 rndis_set_wiphy_params(wiphy,
2478 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
2482 disassociate(usbdev, 1);
2483 netif_carrier_off(usbdev->net);
2488 cancel_delayed_work_sync(&priv->stats_work);
2489 cancel_delayed_work_sync(&priv->scan_work);
2490 cancel_work_sync(&priv->work);
2491 flush_workqueue(priv->workqueue);
2492 destroy_workqueue(priv->workqueue);
2499 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2501 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2503 /* turn radio off */
2504 disassociate(usbdev, 0);
2506 cancel_delayed_work_sync(&priv->stats_work);
2507 cancel_delayed_work_sync(&priv->scan_work);
2508 cancel_work_sync(&priv->work);
2509 flush_workqueue(priv->workqueue);
2510 destroy_workqueue(priv->workqueue);
2512 if (priv && priv->wpa_ie_len)
2513 kfree(priv->wpa_ie);
2515 rndis_unbind(usbdev, intf);
2517 wiphy_unregister(priv->wdev.wiphy);
2518 wiphy_free(priv->wdev.wiphy);
2522 static int rndis_wlan_reset(struct usbnet *usbdev)
2524 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2527 devdbg(usbdev, "rndis_wlan_reset");
2529 retval = rndis_reset(usbdev);
2531 devwarn(usbdev, "rndis_reset() failed: %d", retval);
2533 /* rndis_reset cleared multicast list, so restore here. */
2534 set_multicast_list(usbdev);
2536 queue_delayed_work(priv->workqueue, &priv->stats_work,
2537 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2539 return deauthenticate(usbdev);
2543 static int rndis_wlan_stop(struct usbnet *usbdev)
2545 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2548 devdbg(usbdev, "rndis_wlan_stop");
2550 retval = disassociate(usbdev, 0);
2552 priv->work_pending = 0;
2553 cancel_delayed_work_sync(&priv->stats_work);
2554 cancel_delayed_work_sync(&priv->scan_work);
2555 cancel_work_sync(&priv->work);
2556 flush_workqueue(priv->workqueue);
2558 if (priv->scan_request) {
2559 cfg80211_scan_done(priv->scan_request, true);
2560 priv->scan_request = NULL;
2567 static const struct driver_info bcm4320b_info = {
2568 .description = "Wireless RNDIS device, BCM4320b based",
2569 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2570 FLAG_AVOID_UNLINK_URBS,
2571 .bind = rndis_wlan_bind,
2572 .unbind = rndis_wlan_unbind,
2573 .status = rndis_status,
2574 .rx_fixup = rndis_rx_fixup,
2575 .tx_fixup = rndis_tx_fixup,
2576 .reset = rndis_wlan_reset,
2577 .stop = rndis_wlan_stop,
2578 .early_init = bcm4320b_early_init,
2579 .link_change = rndis_wlan_link_change,
2582 static const struct driver_info bcm4320a_info = {
2583 .description = "Wireless RNDIS device, BCM4320a based",
2584 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2585 FLAG_AVOID_UNLINK_URBS,
2586 .bind = rndis_wlan_bind,
2587 .unbind = rndis_wlan_unbind,
2588 .status = rndis_status,
2589 .rx_fixup = rndis_rx_fixup,
2590 .tx_fixup = rndis_tx_fixup,
2591 .reset = rndis_wlan_reset,
2592 .stop = rndis_wlan_stop,
2593 .early_init = bcm4320a_early_init,
2594 .link_change = rndis_wlan_link_change,
2597 static const struct driver_info rndis_wlan_info = {
2598 .description = "Wireless RNDIS device",
2599 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
2600 FLAG_AVOID_UNLINK_URBS,
2601 .bind = rndis_wlan_bind,
2602 .unbind = rndis_wlan_unbind,
2603 .status = rndis_status,
2604 .rx_fixup = rndis_rx_fixup,
2605 .tx_fixup = rndis_tx_fixup,
2606 .reset = rndis_wlan_reset,
2607 .stop = rndis_wlan_stop,
2608 .early_init = bcm4320a_early_init,
2609 .link_change = rndis_wlan_link_change,
2612 /*-------------------------------------------------------------------------*/
2614 static const struct usb_device_id products [] = {
2615 #define RNDIS_MASTER_INTERFACE \
2616 .bInterfaceClass = USB_CLASS_COMM, \
2617 .bInterfaceSubClass = 2 /* ACM */, \
2618 .bInterfaceProtocol = 0x0ff
2620 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2621 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2624 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2625 | USB_DEVICE_ID_MATCH_DEVICE,
2627 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2628 RNDIS_MASTER_INTERFACE,
2629 .driver_info = (unsigned long) &bcm4320b_info,
2631 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2632 | USB_DEVICE_ID_MATCH_DEVICE,
2634 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2635 RNDIS_MASTER_INTERFACE,
2636 .driver_info = (unsigned long) &bcm4320b_info,
2638 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2639 | USB_DEVICE_ID_MATCH_DEVICE,
2641 .idProduct = 0x011b, /* Belkin F5D7051 */
2642 RNDIS_MASTER_INTERFACE,
2643 .driver_info = (unsigned long) &bcm4320b_info,
2645 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2646 | USB_DEVICE_ID_MATCH_DEVICE,
2647 .idVendor = 0x1799, /* Belkin has two vendor ids */
2648 .idProduct = 0x011b, /* Belkin F5D7051 */
2649 RNDIS_MASTER_INTERFACE,
2650 .driver_info = (unsigned long) &bcm4320b_info,
2652 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2653 | USB_DEVICE_ID_MATCH_DEVICE,
2655 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2656 RNDIS_MASTER_INTERFACE,
2657 .driver_info = (unsigned long) &bcm4320b_info,
2659 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2660 | USB_DEVICE_ID_MATCH_DEVICE,
2662 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2663 RNDIS_MASTER_INTERFACE,
2664 .driver_info = (unsigned long) &bcm4320b_info,
2666 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2667 | USB_DEVICE_ID_MATCH_DEVICE,
2669 .idProduct = 0x1717, /* Asus WL169gE */
2670 RNDIS_MASTER_INTERFACE,
2671 .driver_info = (unsigned long) &bcm4320b_info,
2673 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2674 | USB_DEVICE_ID_MATCH_DEVICE,
2676 .idProduct = 0xd11b, /* Eminent EM4045 */
2677 RNDIS_MASTER_INTERFACE,
2678 .driver_info = (unsigned long) &bcm4320b_info,
2680 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2681 | USB_DEVICE_ID_MATCH_DEVICE,
2683 .idProduct = 0x0715, /* BT Voyager 1055 */
2684 RNDIS_MASTER_INTERFACE,
2685 .driver_info = (unsigned long) &bcm4320b_info,
2687 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2688 * parameters available, hardware probably contain older firmware version with
2689 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2692 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2693 | USB_DEVICE_ID_MATCH_DEVICE,
2695 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2696 RNDIS_MASTER_INTERFACE,
2697 .driver_info = (unsigned long) &bcm4320a_info,
2699 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2700 | USB_DEVICE_ID_MATCH_DEVICE,
2702 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2703 RNDIS_MASTER_INTERFACE,
2704 .driver_info = (unsigned long) &bcm4320a_info,
2706 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2707 | USB_DEVICE_ID_MATCH_DEVICE,
2709 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2710 RNDIS_MASTER_INTERFACE,
2711 .driver_info = (unsigned long) &bcm4320a_info,
2713 /* Generic Wireless RNDIS devices that we don't have exact
2714 * idVendor/idProduct/chip yet.
2717 /* RNDIS is MSFT's un-official variant of CDC ACM */
2718 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2719 .driver_info = (unsigned long) &rndis_wlan_info,
2721 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2722 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2723 .driver_info = (unsigned long) &rndis_wlan_info,
2727 MODULE_DEVICE_TABLE(usb, products);
2729 static struct usb_driver rndis_wlan_driver = {
2730 .name = "rndis_wlan",
2731 .id_table = products,
2732 .probe = usbnet_probe,
2733 .disconnect = usbnet_disconnect,
2734 .suspend = usbnet_suspend,
2735 .resume = usbnet_resume,
2738 static int __init rndis_wlan_init(void)
2740 return usb_register(&rndis_wlan_driver);
2742 module_init(rndis_wlan_init);
2744 static void __exit rndis_wlan_exit(void)
2746 usb_deregister(&rndis_wlan_driver);
2748 module_exit(rndis_wlan_exit);
2750 MODULE_AUTHOR("Bjorge Dijkstra");
2751 MODULE_AUTHOR("Jussi Kivilinna");
2752 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2753 MODULE_LICENSE("GPL");