2 * Driver for RNDIS based wireless USB devices.
4 * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
5 * Copyright (C) 2008 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.
144 #define BCM4320_DEFAULT_TXPOWER 20
147 /* codes for "status" field of completion messages */
148 #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
149 #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
152 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
153 * slightly modified for datatype endianess, etc
155 #define NDIS_802_11_LENGTH_SSID 32
156 #define NDIS_802_11_LENGTH_RATES 8
157 #define NDIS_802_11_LENGTH_RATES_EX 16
159 enum ndis_80211_net_type {
160 ndis_80211_type_freq_hop,
161 ndis_80211_type_direct_seq,
162 ndis_80211_type_ofdm_a,
163 ndis_80211_type_ofdm_g
166 enum ndis_80211_net_infra {
167 ndis_80211_infra_adhoc,
168 ndis_80211_infra_infra,
169 ndis_80211_infra_auto_unknown
172 enum ndis_80211_auth_mode {
173 ndis_80211_auth_open,
174 ndis_80211_auth_shared,
175 ndis_80211_auth_auto_switch,
177 ndis_80211_auth_wpa_psk,
178 ndis_80211_auth_wpa_none,
179 ndis_80211_auth_wpa2,
180 ndis_80211_auth_wpa2_psk
183 enum ndis_80211_encr_status {
184 ndis_80211_encr_wep_enabled,
185 ndis_80211_encr_disabled,
186 ndis_80211_encr_wep_key_absent,
187 ndis_80211_encr_not_supported,
188 ndis_80211_encr_tkip_enabled,
189 ndis_80211_encr_tkip_key_absent,
190 ndis_80211_encr_ccmp_enabled,
191 ndis_80211_encr_ccmp_key_absent
194 enum ndis_80211_priv_filter {
195 ndis_80211_priv_accept_all,
196 ndis_80211_priv_8021x_wep
199 struct ndis_80211_ssid {
201 u8 essid[NDIS_802_11_LENGTH_SSID];
202 } __attribute__((packed));
204 struct ndis_80211_conf_freq_hop {
209 } __attribute__((packed));
211 struct ndis_80211_conf {
213 __le32 beacon_period;
216 struct ndis_80211_conf_freq_hop fh_config;
217 } __attribute__((packed));
219 struct ndis_80211_bssid_ex {
223 struct ndis_80211_ssid ssid;
227 struct ndis_80211_conf config;
229 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
232 } __attribute__((packed));
234 struct ndis_80211_bssid_list_ex {
236 struct ndis_80211_bssid_ex bssid[0];
237 } __attribute__((packed));
239 struct ndis_80211_fixed_ies {
241 __le16 beacon_interval;
243 } __attribute__((packed));
245 struct ndis_80211_wep_key {
250 } __attribute__((packed));
252 struct ndis_80211_key {
260 } __attribute__((packed));
262 struct ndis_80211_remove_key {
266 } __attribute__((packed));
268 struct ndis_config_param {
274 } __attribute__((packed));
276 struct ndis_80211_assoc_info {
281 __le16 listen_interval;
282 u8 cur_ap_address[6];
284 __le32 req_ie_length;
285 __le32 offset_req_ies;
292 __le32 resp_ie_length;
293 __le32 offset_resp_ies;
294 } __attribute__((packed));
296 /* these have to match what is in wpa_supplicant */
297 enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
298 enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
300 enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE,
301 KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE };
306 #define NET_TYPE_11FB 0
308 #define CAP_MODE_80211A 1
309 #define CAP_MODE_80211B 2
310 #define CAP_MODE_80211G 4
311 #define CAP_MODE_MASK 7
312 #define CAP_SUPPORT_TXPOWER 8
314 #define WORK_LINK_UP (1<<0)
315 #define WORK_LINK_DOWN (1<<1)
316 #define WORK_SET_MULTICAST_LIST (1<<2)
318 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
320 static const struct ieee80211_channel rndis_channels[] = {
321 { .center_freq = 2412 },
322 { .center_freq = 2417 },
323 { .center_freq = 2422 },
324 { .center_freq = 2427 },
325 { .center_freq = 2432 },
326 { .center_freq = 2437 },
327 { .center_freq = 2442 },
328 { .center_freq = 2447 },
329 { .center_freq = 2452 },
330 { .center_freq = 2457 },
331 { .center_freq = 2462 },
332 { .center_freq = 2467 },
333 { .center_freq = 2472 },
334 { .center_freq = 2484 },
337 static const struct ieee80211_rate rndis_rates[] = {
339 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
340 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
341 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
352 /* RNDIS device private data */
353 struct rndis_wext_private {
354 struct usbnet *usbdev;
356 struct wireless_dev wdev;
358 struct cfg80211_scan_request *scan_request;
360 struct workqueue_struct *workqueue;
361 struct delayed_work stats_work;
362 struct delayed_work scan_work;
363 struct work_struct work;
364 struct mutex command_lock;
365 spinlock_t stats_lock;
366 unsigned long work_pending;
368 struct ieee80211_supported_band band;
369 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
370 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
372 struct iw_statistics iwstats;
373 struct iw_statistics privstats;
378 /* module parameters */
379 char param_country[4];
380 int param_frameburst;
381 int param_afterburner;
382 int param_power_save;
383 int param_power_output;
384 int param_roamtrigger;
386 u32 param_workaround_interval;
391 struct ndis_80211_ssid essid;
393 /* encryption stuff */
394 int encr_tx_key_index;
395 char encr_keys[4][32];
403 int wpa_cipher_group;
405 u8 command_buffer[COMMAND_BUFFER_SIZE];
411 static int rndis_change_virtual_intf(struct wiphy *wiphy, int ifindex,
412 enum nl80211_iftype type, u32 *flags,
413 struct vif_params *params);
415 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
416 struct cfg80211_scan_request *request);
418 static struct cfg80211_ops rndis_config_ops = {
419 .change_virtual_intf = rndis_change_virtual_intf,
423 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
425 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
427 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
428 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
432 static struct rndis_wext_private *get_rndis_wext_priv(struct usbnet *dev)
434 return (struct rndis_wext_private *)dev->driver_priv;
438 static u32 get_bcm4320_power(struct rndis_wext_private *priv)
440 return BCM4320_DEFAULT_TXPOWER *
441 bcm4320_power_output[priv->param_power_output] / 100;
445 /* translate error code */
446 static int rndis_error_status(__le32 rndis_status)
449 switch (rndis_status) {
450 case RNDIS_STATUS_SUCCESS:
453 case RNDIS_STATUS_FAILURE:
454 case RNDIS_STATUS_INVALID_DATA:
457 case RNDIS_STATUS_NOT_SUPPORTED:
460 case RNDIS_STATUS_ADAPTER_NOT_READY:
461 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
469 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
471 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
474 struct rndis_msg_hdr *header;
475 struct rndis_query *get;
476 struct rndis_query_c *get_c;
480 buflen = *len + sizeof(*u.get);
481 if (buflen < CONTROL_BUFFER_SIZE)
482 buflen = CONTROL_BUFFER_SIZE;
484 if (buflen > COMMAND_BUFFER_SIZE) {
485 u.buf = kmalloc(buflen, GFP_KERNEL);
489 u.buf = priv->command_buffer;
492 mutex_lock(&priv->command_lock);
494 memset(u.get, 0, sizeof *u.get);
495 u.get->msg_type = RNDIS_MSG_QUERY;
496 u.get->msg_len = cpu_to_le32(sizeof *u.get);
499 ret = rndis_command(dev, u.header, buflen);
501 ret = le32_to_cpu(u.get_c->len);
502 *len = (*len > ret) ? ret : *len;
503 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
504 ret = rndis_error_status(u.get_c->status);
507 mutex_unlock(&priv->command_lock);
509 if (u.buf != priv->command_buffer)
515 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
517 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
520 struct rndis_msg_hdr *header;
521 struct rndis_set *set;
522 struct rndis_set_c *set_c;
526 buflen = len + sizeof(*u.set);
527 if (buflen < CONTROL_BUFFER_SIZE)
528 buflen = CONTROL_BUFFER_SIZE;
530 if (buflen > COMMAND_BUFFER_SIZE) {
531 u.buf = kmalloc(buflen, GFP_KERNEL);
535 u.buf = priv->command_buffer;
538 mutex_lock(&priv->command_lock);
540 memset(u.set, 0, sizeof *u.set);
541 u.set->msg_type = RNDIS_MSG_SET;
542 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
544 u.set->len = cpu_to_le32(len);
545 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
546 u.set->handle = cpu_to_le32(0);
547 memcpy(u.buf + sizeof(*u.set), data, len);
549 ret = rndis_command(dev, u.header, buflen);
551 ret = rndis_error_status(u.set_c->status);
553 mutex_unlock(&priv->command_lock);
555 if (u.buf != priv->command_buffer)
562 * Specs say that we can only set config parameters only soon after device
564 * value_type: 0 = u32, 2 = unicode string
566 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
567 int value_type, void *value)
569 struct ndis_config_param *infobuf;
570 int value_len, info_len, param_len, ret, i;
575 value_len = sizeof(__le32);
576 else if (value_type == 2)
577 value_len = strlen(value) * sizeof(__le16);
581 param_len = strlen(param) * sizeof(__le16);
582 info_len = sizeof(*infobuf) + param_len + value_len;
587 infobuf = kmalloc(info_len, GFP_KERNEL);
593 /* extra 12 bytes are for padding (debug output) */
594 memset(infobuf, 0xCC, info_len + 12);
598 devdbg(dev, "setting config parameter: %s, value: %s",
601 devdbg(dev, "setting config parameter: %s, value: %d",
602 param, *(u32 *)value);
604 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
605 infobuf->name_length = cpu_to_le32(param_len);
606 infobuf->type = cpu_to_le32(value_type);
607 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
608 infobuf->value_length = cpu_to_le32(value_len);
610 /* simple string to unicode string conversion */
611 unibuf = (void *)infobuf + sizeof(*infobuf);
612 for (i = 0; i < param_len / sizeof(__le16); i++)
613 unibuf[i] = cpu_to_le16(param[i]);
615 if (value_type == 2) {
616 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
617 for (i = 0; i < value_len / sizeof(__le16); i++)
618 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
620 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
621 *dst_value = cpu_to_le32(*(u32 *)value);
625 devdbg(dev, "info buffer (len: %d):", info_len);
626 for (i = 0; i < info_len; i += 12) {
627 u32 *tmp = (u32 *)((u8 *)infobuf + i);
628 devdbg(dev, "%08X:%08X:%08X",
631 cpu_to_be32(tmp[2]));
635 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
638 devdbg(dev, "setting rndis config paramater failed, %d.", ret);
644 static int rndis_set_config_parameter_str(struct usbnet *dev,
645 char *param, char *value)
647 return(rndis_set_config_parameter(dev, param, 2, value));
650 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
651 char *param, u32 value)
653 return(rndis_set_config_parameter(dev, param, 0, &value));
658 * data conversion functions
660 static int level_to_qual(int level)
662 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
663 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
667 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
673 /* see comment in wireless.h above the "struct iw_freq"
674 * definition for an explanation of this if
675 * NOTE: 1000000 is due to the kHz
677 if (dsconfig > 1000000) {
678 freq->m = dsconfig / 10;
683 /* convert from kHz to Hz */
688 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
690 if (freq->m < 1000 && freq->e == 0) {
691 if (freq->m >= 1 && freq->m <= 14)
692 *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
698 for (i = freq->e; i > 0; i--)
711 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
713 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
718 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
725 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
727 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
728 tmp[le32_to_cpu(ssid->length)] = 0;
729 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
736 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
738 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
741 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
743 memcpy(&priv->essid, ssid, sizeof(priv->essid));
745 devdbg(usbdev, "set_essid: radio_on = 1");
752 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
757 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
760 memset(bssid, 0, ETH_ALEN);
765 static int get_association_info(struct usbnet *usbdev,
766 struct ndis_80211_assoc_info *info, int len)
768 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
772 static int is_associated(struct usbnet *usbdev)
777 ret = get_bssid(usbdev, bssid);
779 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
783 static int disassociate(struct usbnet *usbdev, int reset_ssid)
785 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
786 struct ndis_80211_ssid ssid;
789 if (priv->radio_on) {
790 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
793 devdbg(usbdev, "disassociate: radio_on = 0");
800 /* disassociate causes radio to be turned off; if reset_ssid
801 * is given, set random ssid to enable radio */
803 ssid.length = cpu_to_le32(sizeof(ssid.essid));
804 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
806 ssid.essid[1] = 0xff;
807 for (i = 2; i < sizeof(ssid.essid); i++)
808 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
809 ret = set_essid(usbdev, &ssid);
815 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
817 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
821 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
822 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
824 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
825 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
826 auth_mode = ndis_80211_auth_wpa2;
828 auth_mode = ndis_80211_auth_wpa2_psk;
829 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
830 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
831 auth_mode = ndis_80211_auth_wpa;
832 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
833 auth_mode = ndis_80211_auth_wpa_psk;
835 auth_mode = ndis_80211_auth_wpa_none;
836 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
837 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
838 auth_mode = ndis_80211_auth_auto_switch;
840 auth_mode = ndis_80211_auth_shared;
842 auth_mode = ndis_80211_auth_open;
844 tmp = cpu_to_le32(auth_mode);
845 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
848 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
852 priv->wpa_version = wpa_version;
853 priv->wpa_authalg = authalg;
858 static int set_priv_filter(struct usbnet *usbdev)
860 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
863 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
865 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
866 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
867 tmp = cpu_to_le32(ndis_80211_priv_8021x_wep);
869 tmp = cpu_to_le32(ndis_80211_priv_accept_all);
871 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
876 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
878 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
882 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
886 if (pairwise & IW_AUTH_CIPHER_CCMP)
887 encr_mode = ndis_80211_encr_ccmp_enabled;
888 else if (pairwise & IW_AUTH_CIPHER_TKIP)
889 encr_mode = ndis_80211_encr_tkip_enabled;
891 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
892 encr_mode = ndis_80211_encr_wep_enabled;
893 else if (groupwise & IW_AUTH_CIPHER_CCMP)
894 encr_mode = ndis_80211_encr_ccmp_enabled;
895 else if (groupwise & IW_AUTH_CIPHER_TKIP)
896 encr_mode = ndis_80211_encr_tkip_enabled;
898 encr_mode = ndis_80211_encr_disabled;
900 tmp = cpu_to_le32(encr_mode);
901 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
904 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
908 priv->wpa_cipher_pair = pairwise;
909 priv->wpa_cipher_group = groupwise;
914 static int set_assoc_params(struct usbnet *usbdev)
916 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
918 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
919 set_priv_filter(usbdev);
920 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
926 static int set_infra_mode(struct usbnet *usbdev, int mode)
928 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
932 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
934 tmp = cpu_to_le32(mode);
935 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
938 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
942 /* NDIS drivers clear keys when infrastructure mode is
943 * changed. But Linux tools assume otherwise. So set the
945 if (priv->wpa_keymgmt == 0 ||
946 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
947 for (i = 0; i < 4; i++) {
948 if (priv->encr_key_len[i] > 0)
949 add_wep_key(usbdev, priv->encr_keys[i],
950 priv->encr_key_len[i], i);
954 priv->infra_mode = mode;
959 static void set_default_iw_params(struct usbnet *usbdev)
961 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
963 priv->wpa_keymgmt = 0;
964 priv->wpa_version = 0;
966 set_infra_mode(usbdev, ndis_80211_infra_infra);
967 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
968 IW_AUTH_ALG_OPEN_SYSTEM);
969 set_priv_filter(usbdev);
970 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
974 static int deauthenticate(struct usbnet *usbdev)
978 ret = disassociate(usbdev, 1);
979 set_default_iw_params(usbdev);
984 /* index must be 0 - N, as per NDIS */
985 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
987 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
988 struct ndis_80211_wep_key ndis_key;
991 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
994 memset(&ndis_key, 0, sizeof(ndis_key));
996 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
997 ndis_key.length = cpu_to_le32(key_len);
998 ndis_key.index = cpu_to_le32(index);
999 memcpy(&ndis_key.material, key, key_len);
1001 if (index == priv->encr_tx_key_index) {
1002 ndis_key.index |= cpu_to_le32(1 << 31);
1003 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1004 IW_AUTH_CIPHER_NONE);
1006 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1010 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1013 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1018 priv->encr_key_len[index] = key_len;
1019 memcpy(&priv->encr_keys[index], key, key_len);
1025 /* remove_key is for both wep and wpa */
1026 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1028 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1029 struct ndis_80211_remove_key remove_key;
1033 if (priv->encr_key_len[index] == 0)
1036 priv->encr_key_len[index] = 0;
1037 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1039 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
1040 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
1041 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
1042 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
1043 remove_key.size = cpu_to_le32(sizeof(remove_key));
1044 remove_key.index = cpu_to_le32(index);
1047 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
1048 remove_key.index |= cpu_to_le32(1 << 30);
1049 memcpy(remove_key.bssid, bssid,
1050 sizeof(remove_key.bssid));
1052 memset(remove_key.bssid, 0xff,
1053 sizeof(remove_key.bssid));
1055 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1056 sizeof(remove_key));
1060 keyindex = cpu_to_le32(index);
1061 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1065 "removing encryption key %d failed (%08X)",
1071 /* if it is transmit key, disable encryption */
1072 if (index == priv->encr_tx_key_index)
1073 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1079 static void set_multicast_list(struct usbnet *usbdev)
1081 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1082 struct dev_mc_list *mclist;
1087 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1089 if (usbdev->net->flags & IFF_PROMISC) {
1090 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1091 RNDIS_PACKET_TYPE_ALL_LOCAL;
1092 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1093 usbdev->net->mc_count > priv->multicast_size) {
1094 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1095 } else if (usbdev->net->mc_count > 0) {
1096 size = min(priv->multicast_size, usbdev->net->mc_count);
1097 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1100 "couldn't alloc %d bytes of memory",
1105 mclist = usbdev->net->mc_list;
1106 for (i = 0; i < size && mclist; mclist = mclist->next) {
1107 if (mclist->dmi_addrlen != ETH_ALEN)
1110 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1114 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1116 if (ret == 0 && i > 0)
1117 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1119 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1121 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1122 i, priv->multicast_size, ret);
1127 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1130 devwarn(usbdev, "couldn't set packet filter: %08x",
1131 le32_to_cpu(filter));
1134 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1135 le32_to_cpu(filter), ret);
1142 static int rndis_change_virtual_intf(struct wiphy *wiphy, int ifindex,
1143 enum nl80211_iftype type, u32 *flags,
1144 struct vif_params *params)
1146 struct net_device *dev;
1147 struct usbnet *usbdev;
1150 /* we're under RTNL */
1151 dev = __dev_get_by_index(&init_net, ifindex);
1154 usbdev = netdev_priv(dev);
1157 case NL80211_IFTYPE_ADHOC:
1158 mode = ndis_80211_infra_adhoc;
1160 case NL80211_IFTYPE_STATION:
1161 mode = ndis_80211_infra_infra;
1167 return set_infra_mode(usbdev, mode);
1171 #define SCAN_DELAY_JIFFIES (HZ)
1172 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1173 struct cfg80211_scan_request *request)
1175 struct usbnet *usbdev = netdev_priv(dev);
1176 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1180 devdbg(usbdev, "cfg80211.scan");
1185 if (priv->scan_request && priv->scan_request != request)
1188 priv->scan_request = request;
1190 tmp = cpu_to_le32(1);
1191 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1194 /* Wait before retrieving scan results from device */
1195 queue_delayed_work(priv->workqueue, &priv->scan_work,
1196 SCAN_DELAY_JIFFIES);
1203 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1204 struct ndis_80211_bssid_ex *bssid)
1206 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1207 struct ieee80211_channel *channel;
1211 u16 beacon_interval;
1212 struct ndis_80211_fixed_ies *fixed;
1213 int ie_len, bssid_len;
1216 /* parse bssid structure */
1217 bssid_len = le32_to_cpu(bssid->length);
1219 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1220 sizeof(struct ndis_80211_fixed_ies))
1223 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1225 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1226 ie_len = min(bssid_len - (int)sizeof(*bssid),
1227 (int)le32_to_cpu(bssid->ie_length));
1228 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1232 /* extract data for cfg80211_inform_bss */
1233 channel = ieee80211_get_channel(priv->wdev.wiphy,
1234 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1238 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1239 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1240 capability = le16_to_cpu(fixed->capabilities);
1241 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1243 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1244 timestamp, capability, beacon_interval, ie, ie_len, signal,
1249 static int rndis_check_bssid_list(struct usbnet *usbdev)
1252 struct ndis_80211_bssid_list_ex *bssid_list;
1253 struct ndis_80211_bssid_ex *bssid;
1254 int ret = -EINVAL, len, count, bssid_len;
1256 devdbg(usbdev, "check_bssid_list");
1258 len = CONTROL_BUFFER_SIZE;
1259 buf = kmalloc(len, GFP_KERNEL);
1265 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1270 bssid = bssid_list->bssid;
1271 bssid_len = le32_to_cpu(bssid->length);
1272 count = le32_to_cpu(bssid_list->num_items);
1273 devdbg(usbdev, "check_bssid_list: %d BSSIDs found", count);
1275 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1276 rndis_bss_info_update(usbdev, bssid);
1278 bssid = (void *)bssid + bssid_len;
1279 bssid_len = le32_to_cpu(bssid->length);
1289 static void rndis_get_scan_results(struct work_struct *work)
1291 struct rndis_wext_private *priv =
1292 container_of(work, struct rndis_wext_private, scan_work.work);
1293 struct usbnet *usbdev = priv->usbdev;
1296 devdbg(usbdev, "get_scan_results");
1298 ret = rndis_check_bssid_list(usbdev);
1300 cfg80211_scan_done(priv->scan_request, ret < 0);
1302 priv->scan_request = NULL;
1307 * wireless extension handlers
1310 static int rndis_iw_commit(struct net_device *dev,
1311 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1318 static int rndis_iw_set_essid(struct net_device *dev,
1319 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1321 struct ndis_80211_ssid ssid;
1322 int length = wrqu->essid.length;
1323 struct usbnet *usbdev = netdev_priv(dev);
1325 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1326 wrqu->essid.flags, wrqu->essid.length, essid);
1328 if (length > NDIS_802_11_LENGTH_SSID)
1329 length = NDIS_802_11_LENGTH_SSID;
1331 ssid.length = cpu_to_le32(length);
1333 memcpy(ssid.essid, essid, length);
1335 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1337 set_assoc_params(usbdev);
1339 if (!wrqu->essid.flags || length == 0)
1340 return disassociate(usbdev, 1);
1342 return set_essid(usbdev, &ssid);
1346 static int rndis_iw_get_essid(struct net_device *dev,
1347 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1349 struct ndis_80211_ssid ssid;
1350 struct usbnet *usbdev = netdev_priv(dev);
1353 ret = get_essid(usbdev, &ssid);
1355 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1356 wrqu->essid.flags = 1;
1357 wrqu->essid.length = le32_to_cpu(ssid.length);
1358 memcpy(essid, ssid.essid, wrqu->essid.length);
1359 essid[wrqu->essid.length] = 0;
1361 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1362 wrqu->essid.flags = 0;
1363 wrqu->essid.length = 0;
1365 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1370 static int rndis_iw_get_bssid(struct net_device *dev,
1371 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1373 struct usbnet *usbdev = netdev_priv(dev);
1374 unsigned char bssid[ETH_ALEN];
1377 ret = get_bssid(usbdev, bssid);
1380 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1382 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1384 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1385 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1391 static int rndis_iw_set_bssid(struct net_device *dev,
1392 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1394 struct usbnet *usbdev = netdev_priv(dev);
1395 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1398 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1400 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1402 /* user apps may set ap's mac address, which is not required;
1403 * they may fail to work if this function fails, so return
1406 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1412 static int rndis_iw_set_auth(struct net_device *dev,
1413 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1415 struct iw_param *p = &wrqu->param;
1416 struct usbnet *usbdev = netdev_priv(dev);
1417 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1418 int ret = -ENOTSUPP;
1420 switch (p->flags & IW_AUTH_INDEX) {
1421 case IW_AUTH_WPA_VERSION:
1422 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1423 priv->wpa_version = p->value;
1427 case IW_AUTH_CIPHER_PAIRWISE:
1428 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1429 priv->wpa_cipher_pair = p->value;
1433 case IW_AUTH_CIPHER_GROUP:
1434 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1435 priv->wpa_cipher_group = p->value;
1439 case IW_AUTH_KEY_MGMT:
1440 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1441 priv->wpa_keymgmt = p->value;
1445 case IW_AUTH_TKIP_COUNTERMEASURES:
1446 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1451 case IW_AUTH_DROP_UNENCRYPTED:
1452 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1456 case IW_AUTH_80211_AUTH_ALG:
1457 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1458 priv->wpa_authalg = p->value;
1462 case IW_AUTH_WPA_ENABLED:
1463 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1464 if (wrqu->param.value)
1465 deauthenticate(usbdev);
1469 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1470 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1475 case IW_AUTH_ROAMING_CONTROL:
1476 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1480 case IW_AUTH_PRIVACY_INVOKED:
1481 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1482 wrqu->param.flags & IW_AUTH_INDEX);
1486 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1487 p->flags & IW_AUTH_INDEX, p->value);
1493 static int rndis_iw_get_auth(struct net_device *dev,
1494 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1496 struct iw_param *p = &wrqu->param;
1497 struct usbnet *usbdev = netdev_priv(dev);
1498 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1500 switch (p->flags & IW_AUTH_INDEX) {
1501 case IW_AUTH_WPA_VERSION:
1502 p->value = priv->wpa_version;
1504 case IW_AUTH_CIPHER_PAIRWISE:
1505 p->value = priv->wpa_cipher_pair;
1507 case IW_AUTH_CIPHER_GROUP:
1508 p->value = priv->wpa_cipher_group;
1510 case IW_AUTH_KEY_MGMT:
1511 p->value = priv->wpa_keymgmt;
1513 case IW_AUTH_80211_AUTH_ALG:
1514 p->value = priv->wpa_authalg;
1517 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1518 wrqu->param.flags & IW_AUTH_INDEX);
1525 static int rndis_iw_set_encode(struct net_device *dev,
1526 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1528 struct usbnet *usbdev = netdev_priv(dev);
1529 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1530 int ret, index, key_len;
1533 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1535 /* iwconfig gives index as 1 - N */
1539 index = priv->encr_tx_key_index;
1541 if (index < 0 || index >= 4) {
1542 devwarn(usbdev, "encryption index out of range (%u)", index);
1546 /* remove key if disabled */
1547 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1548 if (remove_key(usbdev, index, NULL))
1554 /* global encryption state (for all keys) */
1555 if (wrqu->data.flags & IW_ENCODE_OPEN)
1556 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1557 IW_AUTH_ALG_OPEN_SYSTEM);
1558 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1559 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1560 IW_AUTH_ALG_SHARED_KEY);
1564 if (wrqu->data.length > 0) {
1565 key_len = wrqu->data.length;
1568 /* must be set as tx key */
1569 if (priv->encr_key_len[index] == 0)
1571 key_len = priv->encr_key_len[index];
1572 key = priv->encr_keys[index];
1573 priv->encr_tx_key_index = index;
1576 if (add_wep_key(usbdev, key, key_len, index) != 0)
1579 if (index == priv->encr_tx_key_index)
1580 /* ndis drivers want essid to be set after setting encr */
1581 set_essid(usbdev, &priv->essid);
1587 static int rndis_iw_set_encode_ext(struct net_device *dev,
1588 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1590 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1591 struct usbnet *usbdev = netdev_priv(dev);
1592 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1593 struct ndis_80211_key ndis_key;
1597 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1599 /* iwconfig gives index as 1 - N */
1603 keyidx = priv->encr_tx_key_index;
1605 if (keyidx < 0 || keyidx >= 4)
1608 if (ext->alg == WPA_ALG_WEP) {
1609 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1610 priv->encr_tx_key_index = keyidx;
1611 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1614 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1615 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1616 return remove_key(usbdev, keyidx, NULL);
1618 if (ext->key_len > sizeof(ndis_key.material))
1621 memset(&ndis_key, 0, sizeof(ndis_key));
1623 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1624 sizeof(ndis_key.material) + ext->key_len);
1625 ndis_key.length = cpu_to_le32(ext->key_len);
1626 ndis_key.index = cpu_to_le32(keyidx);
1628 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
1629 memcpy(ndis_key.rsc, ext->rx_seq, 6);
1630 ndis_key.index |= cpu_to_le32(1 << 29);
1633 addr = ext->addr.sa_data;
1634 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
1636 if (priv->infra_mode == ndis_80211_infra_adhoc)
1637 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1639 get_bssid(usbdev, ndis_key.bssid);
1642 ndis_key.index |= cpu_to_le32(1 << 30);
1643 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1646 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1647 ndis_key.index |= cpu_to_le32(1 << 31);
1649 if (ext->alg == IW_ENCODE_ALG_TKIP && ext->key_len == 32) {
1650 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1651 * different order than NDIS spec, so swap the order here. */
1652 memcpy(ndis_key.material, ext->key, 16);
1653 memcpy(ndis_key.material + 16, ext->key + 24, 8);
1654 memcpy(ndis_key.material + 24, ext->key + 16, 8);
1656 memcpy(ndis_key.material, ext->key, ext->key_len);
1658 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1659 le32_to_cpu(ndis_key.size));
1660 devdbg(usbdev, "SIOCSIWENCODEEXT: OID_802_11_ADD_KEY -> %08X", ret);
1664 priv->encr_key_len[keyidx] = ext->key_len;
1665 memcpy(&priv->encr_keys[keyidx], ndis_key.material, ext->key_len);
1666 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1667 priv->encr_tx_key_index = keyidx;
1673 static int rndis_iw_set_genie(struct net_device *dev,
1674 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1676 struct usbnet *usbdev = netdev_priv(dev);
1677 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1683 for (j = 0; j < wrqu->data.length; j += 8)
1685 "SIOCSIWGENIE %04x - "
1686 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1687 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1688 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1690 /* clear existing IEs */
1691 if (priv->wpa_ie_len) {
1692 kfree(priv->wpa_ie);
1693 priv->wpa_ie_len = 0;
1697 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1699 priv->wpa_ie_len = wrqu->data.length;
1700 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1707 static int rndis_iw_get_genie(struct net_device *dev,
1708 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1710 struct usbnet *usbdev = netdev_priv(dev);
1711 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1713 devdbg(usbdev, "SIOCGIWGENIE");
1715 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1716 wrqu->data.length = 0;
1720 if (wrqu->data.length < priv->wpa_ie_len)
1723 wrqu->data.length = priv->wpa_ie_len;
1724 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1730 static int rndis_iw_set_rts(struct net_device *dev,
1731 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1733 struct usbnet *usbdev = netdev_priv(dev);
1735 devdbg(usbdev, "SIOCSIWRTS");
1737 tmp = cpu_to_le32(wrqu->rts.value);
1738 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1743 static int rndis_iw_get_rts(struct net_device *dev,
1744 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1746 struct usbnet *usbdev = netdev_priv(dev);
1751 ret = rndis_query_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp, &len);
1753 wrqu->rts.value = le32_to_cpu(tmp);
1754 wrqu->rts.flags = 1;
1755 wrqu->rts.disabled = 0;
1758 devdbg(usbdev, "SIOCGIWRTS: %d", wrqu->rts.value);
1764 static int rndis_iw_set_frag(struct net_device *dev,
1765 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1767 struct usbnet *usbdev = netdev_priv(dev);
1770 devdbg(usbdev, "SIOCSIWFRAG");
1772 tmp = cpu_to_le32(wrqu->frag.value);
1773 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1778 static int rndis_iw_get_frag(struct net_device *dev,
1779 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1781 struct usbnet *usbdev = netdev_priv(dev);
1786 ret = rndis_query_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1789 wrqu->frag.value = le32_to_cpu(tmp);
1790 wrqu->frag.flags = 1;
1791 wrqu->frag.disabled = 0;
1793 devdbg(usbdev, "SIOCGIWFRAG: %d", wrqu->frag.value);
1798 static int rndis_iw_set_freq(struct net_device *dev,
1799 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1801 struct usbnet *usbdev = netdev_priv(dev);
1802 struct ndis_80211_conf config;
1803 unsigned int dsconfig;
1806 /* this OID is valid only when not associated */
1807 if (is_associated(usbdev))
1811 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
1814 len = sizeof(config);
1815 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1817 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
1821 config.ds_config = cpu_to_le32(dsconfig);
1823 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
1824 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1829 static int rndis_iw_get_freq(struct net_device *dev,
1830 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1832 struct usbnet *usbdev = netdev_priv(dev);
1833 struct ndis_80211_conf config;
1836 len = sizeof(config);
1837 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1839 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
1841 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
1846 static int rndis_iw_get_txpower(struct net_device *dev,
1847 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1849 struct usbnet *usbdev = netdev_priv(dev);
1850 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1854 if (priv->radio_on) {
1855 if (priv->caps & CAP_SUPPORT_TXPOWER) {
1856 len = sizeof(tx_power);
1857 ret = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
1862 /* fake incase not supported */
1863 tx_power = cpu_to_le32(get_bcm4320_power(priv));
1865 wrqu->txpower.flags = IW_TXPOW_MWATT;
1866 wrqu->txpower.value = le32_to_cpu(tx_power);
1867 wrqu->txpower.disabled = 0;
1869 wrqu->txpower.flags = IW_TXPOW_MWATT;
1870 wrqu->txpower.value = 0;
1871 wrqu->txpower.disabled = 1;
1874 devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
1880 static int rndis_iw_set_txpower(struct net_device *dev,
1881 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1883 struct usbnet *usbdev = netdev_priv(dev);
1884 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1885 __le32 tx_power = 0;
1888 if (!wrqu->txpower.disabled) {
1889 if (wrqu->txpower.flags == IW_TXPOW_MWATT)
1890 tx_power = cpu_to_le32(wrqu->txpower.value);
1891 else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
1892 if (wrqu->txpower.value > 20)
1893 tx_power = cpu_to_le32(128);
1894 else if (wrqu->txpower.value < -43)
1895 tx_power = cpu_to_le32(127);
1898 tmp = wrqu->txpower.value;
1901 tx_power = cpu_to_le32((unsigned char)tmp);
1906 devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
1908 if (le32_to_cpu(tx_power) != 0) {
1909 if (priv->caps & CAP_SUPPORT_TXPOWER) {
1910 /* turn radio on first */
1911 if (!priv->radio_on)
1912 disassociate(usbdev, 1);
1914 ret = rndis_set_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
1915 &tx_power, sizeof(tx_power));
1920 /* txpower unsupported, just turn radio on */
1921 if (!priv->radio_on)
1922 return disassociate(usbdev, 1);
1923 return 0; /* all ready on */
1927 /* tx_power == 0, turn off radio */
1928 return disassociate(usbdev, 0);
1932 static int rndis_iw_get_rate(struct net_device *dev,
1933 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1935 struct usbnet *usbdev = netdev_priv(dev);
1940 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
1942 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
1943 wrqu->bitrate.disabled = 0;
1944 wrqu->bitrate.flags = 1;
1950 static int rndis_iw_set_mlme(struct net_device *dev,
1951 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1953 struct usbnet *usbdev = netdev_priv(dev);
1954 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1955 struct iw_mlme *mlme = (struct iw_mlme *)extra;
1956 unsigned char bssid[ETH_ALEN];
1958 get_bssid(usbdev, bssid);
1960 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
1963 switch (mlme->cmd) {
1964 case IW_MLME_DEAUTH:
1965 return deauthenticate(usbdev);
1966 case IW_MLME_DISASSOC:
1967 return disassociate(usbdev, priv->radio_on);
1976 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
1978 struct usbnet *usbdev = netdev_priv(dev);
1979 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1980 unsigned long flags;
1982 spin_lock_irqsave(&priv->stats_lock, flags);
1983 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
1984 spin_unlock_irqrestore(&priv->stats_lock, flags);
1986 return &priv->iwstats;
1990 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
1991 static const iw_handler rndis_iw_handler[] =
1993 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
1994 IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname,
1995 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
1996 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
1997 IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode,
1998 IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode,
1999 IW_IOCTL(SIOCGIWRANGE) = (iw_handler) cfg80211_wext_giwrange,
2000 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
2001 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
2002 IW_IOCTL(SIOCSIWSCAN) = (iw_handler) cfg80211_wext_siwscan,
2003 IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan,
2004 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
2005 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
2006 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
2007 IW_IOCTL(SIOCSIWRTS) = rndis_iw_set_rts,
2008 IW_IOCTL(SIOCGIWRTS) = rndis_iw_get_rts,
2009 IW_IOCTL(SIOCSIWFRAG) = rndis_iw_set_frag,
2010 IW_IOCTL(SIOCGIWFRAG) = rndis_iw_get_frag,
2011 IW_IOCTL(SIOCSIWTXPOW) = rndis_iw_set_txpower,
2012 IW_IOCTL(SIOCGIWTXPOW) = rndis_iw_get_txpower,
2013 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2014 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2015 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2016 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2017 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2018 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2019 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2022 static const iw_handler rndis_wext_private_handler[] = {
2025 static const struct iw_priv_args rndis_wext_private_args[] = {
2029 static const struct iw_handler_def rndis_iw_handlers = {
2030 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2031 .num_private = ARRAY_SIZE(rndis_wext_private_handler),
2032 .num_private_args = ARRAY_SIZE(rndis_wext_private_args),
2033 .standard = (iw_handler *)rndis_iw_handler,
2034 .private = (iw_handler *)rndis_wext_private_handler,
2035 .private_args = (struct iw_priv_args *)rndis_wext_private_args,
2036 .get_wireless_stats = rndis_get_wireless_stats,
2040 static void rndis_wext_worker(struct work_struct *work)
2042 struct rndis_wext_private *priv =
2043 container_of(work, struct rndis_wext_private, work);
2044 struct usbnet *usbdev = priv->usbdev;
2045 union iwreq_data evt;
2046 unsigned char bssid[ETH_ALEN];
2047 struct ndis_80211_assoc_info *info;
2048 int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32;
2051 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) {
2052 netif_carrier_on(usbdev->net);
2054 info = kzalloc(assoc_size, GFP_KERNEL);
2058 /* Get association info IEs from device and send them back to
2060 ret = get_association_info(usbdev, info, assoc_size);
2062 evt.data.length = le32_to_cpu(info->req_ie_length);
2063 if (evt.data.length > 0) {
2064 offset = le32_to_cpu(info->offset_req_ies);
2065 wireless_send_event(usbdev->net,
2066 IWEVASSOCREQIE, &evt,
2067 (char *)info + offset);
2070 evt.data.length = le32_to_cpu(info->resp_ie_length);
2071 if (evt.data.length > 0) {
2072 offset = le32_to_cpu(info->offset_resp_ies);
2073 wireless_send_event(usbdev->net,
2074 IWEVASSOCRESPIE, &evt,
2075 (char *)info + offset);
2082 ret = get_bssid(usbdev, bssid);
2085 evt.data.length = 0;
2086 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2087 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2091 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) {
2092 netif_carrier_off(usbdev->net);
2095 evt.data.length = 0;
2096 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2097 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2100 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2101 set_multicast_list(usbdev);
2104 static void rndis_wext_set_multicast_list(struct net_device *dev)
2106 struct usbnet *usbdev = netdev_priv(dev);
2107 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2109 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2112 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2113 queue_work(priv->workqueue, &priv->work);
2116 static void rndis_wext_link_change(struct usbnet *usbdev, int state)
2118 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2120 /* queue work to avoid recursive calls into rndis_command */
2121 set_bit(state ? WORK_LINK_UP : WORK_LINK_DOWN, &priv->work_pending);
2122 queue_work(priv->workqueue, &priv->work);
2126 static int rndis_wext_get_caps(struct usbnet *usbdev)
2131 } networks_supported;
2132 int len, retval, i, n;
2134 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2136 /* determine if supports setting txpower */
2137 len = sizeof(tx_power);
2138 retval = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL, &tx_power,
2140 if (retval == 0 && le32_to_cpu(tx_power) != 0xFF)
2141 priv->caps |= CAP_SUPPORT_TXPOWER;
2143 /* determine supported modes */
2144 len = sizeof(networks_supported);
2145 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2146 &networks_supported, &len);
2148 n = le32_to_cpu(networks_supported.num_items);
2151 for (i = 0; i < n; i++) {
2152 switch (le32_to_cpu(networks_supported.items[i])) {
2153 case ndis_80211_type_freq_hop:
2154 case ndis_80211_type_direct_seq:
2155 priv->caps |= CAP_MODE_80211B;
2157 case ndis_80211_type_ofdm_a:
2158 priv->caps |= CAP_MODE_80211A;
2160 case ndis_80211_type_ofdm_g:
2161 priv->caps |= CAP_MODE_80211G;
2171 #define STATS_UPDATE_JIFFIES (HZ)
2172 static void rndis_update_wireless_stats(struct work_struct *work)
2174 struct rndis_wext_private *priv =
2175 container_of(work, struct rndis_wext_private, stats_work.work);
2176 struct usbnet *usbdev = priv->usbdev;
2177 struct iw_statistics iwstats;
2180 unsigned long flags;
2181 int update_jiffies = STATS_UPDATE_JIFFIES;
2184 spin_lock_irqsave(&priv->stats_lock, flags);
2185 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2186 spin_unlock_irqrestore(&priv->stats_lock, flags);
2188 /* only update stats when connected */
2189 if (!is_associated(usbdev)) {
2190 iwstats.qual.qual = 0;
2191 iwstats.qual.level = 0;
2192 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2193 | IW_QUAL_LEVEL_UPDATED
2194 | IW_QUAL_NOISE_INVALID
2195 | IW_QUAL_QUAL_INVALID
2196 | IW_QUAL_LEVEL_INVALID;
2201 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2203 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2206 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2207 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2208 iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
2209 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2210 | IW_QUAL_LEVEL_UPDATED
2211 | IW_QUAL_NOISE_INVALID;
2214 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2217 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2219 iwstats.discard.misc += le32_to_cpu(tmp);
2222 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2224 iwstats.discard.misc += le32_to_cpu(tmp);
2227 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2229 iwstats.discard.misc += le32_to_cpu(tmp);
2231 /* Workaround transfer stalls on poor quality links.
2232 * TODO: find right way to fix these stalls (as stalls do not happen
2233 * with ndiswrapper/windows driver). */
2234 if (iwstats.qual.qual <= 25) {
2235 /* Decrease stats worker interval to catch stalls.
2236 * faster. Faster than 400-500ms causes packet loss,
2237 * Slower doesn't catch stalls fast enough.
2239 j = msecs_to_jiffies(priv->param_workaround_interval);
2240 if (j > STATS_UPDATE_JIFFIES)
2241 j = STATS_UPDATE_JIFFIES;
2246 /* Send scan OID. Use of both OIDs is required to get device
2249 tmp = cpu_to_le32(1);
2250 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2253 len = CONTROL_BUFFER_SIZE;
2254 buf = kmalloc(len, GFP_KERNEL);
2258 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2262 spin_lock_irqsave(&priv->stats_lock, flags);
2263 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2264 spin_unlock_irqrestore(&priv->stats_lock, flags);
2266 if (update_jiffies >= HZ)
2267 update_jiffies = round_jiffies_relative(update_jiffies);
2269 j = round_jiffies_relative(update_jiffies);
2270 if (abs(j - update_jiffies) <= 10)
2274 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2278 static int bcm4320_early_init(struct usbnet *usbdev)
2280 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2283 /* Early initialization settings, setting these won't have effect
2284 * if called after generic_rndis_bind().
2287 priv->param_country[0] = modparam_country[0];
2288 priv->param_country[1] = modparam_country[1];
2289 priv->param_country[2] = 0;
2290 priv->param_frameburst = modparam_frameburst;
2291 priv->param_afterburner = modparam_afterburner;
2292 priv->param_power_save = modparam_power_save;
2293 priv->param_power_output = modparam_power_output;
2294 priv->param_roamtrigger = modparam_roamtrigger;
2295 priv->param_roamdelta = modparam_roamdelta;
2297 priv->param_country[0] = toupper(priv->param_country[0]);
2298 priv->param_country[1] = toupper(priv->param_country[1]);
2299 /* doesn't support EU as country code, use FI instead */
2300 if (!strcmp(priv->param_country, "EU"))
2301 strcpy(priv->param_country, "FI");
2303 if (priv->param_power_save < 0)
2304 priv->param_power_save = 0;
2305 else if (priv->param_power_save > 2)
2306 priv->param_power_save = 2;
2308 if (priv->param_power_output < 0)
2309 priv->param_power_output = 0;
2310 else if (priv->param_power_output > 3)
2311 priv->param_power_output = 3;
2313 if (priv->param_roamtrigger < -80)
2314 priv->param_roamtrigger = -80;
2315 else if (priv->param_roamtrigger > -60)
2316 priv->param_roamtrigger = -60;
2318 if (priv->param_roamdelta < 0)
2319 priv->param_roamdelta = 0;
2320 else if (priv->param_roamdelta > 2)
2321 priv->param_roamdelta = 2;
2323 if (modparam_workaround_interval < 0)
2324 priv->param_workaround_interval = 500;
2326 priv->param_workaround_interval = modparam_workaround_interval;
2328 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2329 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2330 priv->param_frameburst ? "1" : "0");
2331 rndis_set_config_parameter_str(usbdev, "Afterburner",
2332 priv->param_afterburner ? "1" : "0");
2333 sprintf(buf, "%d", priv->param_power_save);
2334 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2335 sprintf(buf, "%d", priv->param_power_output);
2336 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2337 sprintf(buf, "%d", priv->param_roamtrigger);
2338 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2339 sprintf(buf, "%d", priv->param_roamdelta);
2340 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2345 /* same as rndis_netdev_ops but with local multicast handler */
2346 static const struct net_device_ops rndis_wext_netdev_ops = {
2347 .ndo_open = usbnet_open,
2348 .ndo_stop = usbnet_stop,
2349 .ndo_start_xmit = usbnet_start_xmit,
2350 .ndo_tx_timeout = usbnet_tx_timeout,
2351 .ndo_set_mac_address = eth_mac_addr,
2352 .ndo_validate_addr = eth_validate_addr,
2353 .ndo_set_multicast_list = rndis_wext_set_multicast_list,
2357 static int rndis_wext_bind(struct usbnet *usbdev, struct usb_interface *intf)
2359 struct wiphy *wiphy;
2360 struct rndis_wext_private *priv;
2364 /* allocate wiphy and rndis private data
2365 * NOTE: We only support a single virtual interface, so wiphy
2366 * and wireless_dev are somewhat synonymous for this device.
2368 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wext_private));
2372 priv = wiphy_priv(wiphy);
2373 usbdev->net->ieee80211_ptr = &priv->wdev;
2374 priv->wdev.wiphy = wiphy;
2375 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2377 /* These have to be initialized before calling generic_rndis_bind().
2378 * Otherwise we'll be in big trouble in rndis_wext_early_init().
2380 usbdev->driver_priv = priv;
2381 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2382 priv->usbdev = usbdev;
2384 mutex_init(&priv->command_lock);
2385 spin_lock_init(&priv->stats_lock);
2387 /* because rndis_command() sleeps we need to use workqueue */
2388 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2389 INIT_WORK(&priv->work, rndis_wext_worker);
2390 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2391 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2393 /* try bind rndis_host */
2394 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2398 /* generic_rndis_bind set packet filter to multicast_all+
2399 * promisc mode which doesn't work well for our devices (device
2400 * picks up rssi to closest station instead of to access point).
2402 * rndis_host wants to avoid all OID as much as possible
2403 * so do promisc/multicast handling in rndis_wext.
2405 usbdev->net->netdev_ops = &rndis_wext_netdev_ops;
2407 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2408 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2412 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2414 priv->multicast_size = le32_to_cpu(tmp);
2415 if (retval < 0 || priv->multicast_size < 0)
2416 priv->multicast_size = 0;
2417 if (priv->multicast_size > 0)
2418 usbdev->net->flags |= IFF_MULTICAST;
2420 usbdev->net->flags &= ~IFF_MULTICAST;
2422 priv->iwstats.qual.qual = 0;
2423 priv->iwstats.qual.level = 0;
2424 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2425 | IW_QUAL_LEVEL_UPDATED
2426 | IW_QUAL_NOISE_INVALID
2427 | IW_QUAL_QUAL_INVALID
2428 | IW_QUAL_LEVEL_INVALID;
2430 /* fill-out wiphy structure and register w/ cfg80211 */
2431 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2432 wiphy->privid = rndis_wiphy_privid;
2433 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2434 | BIT(NL80211_IFTYPE_ADHOC);
2435 wiphy->max_scan_ssids = 1;
2437 /* TODO: fill-out band information based on priv->caps */
2438 rndis_wext_get_caps(usbdev);
2440 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2441 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2442 priv->band.channels = priv->channels;
2443 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2444 priv->band.bitrates = priv->rates;
2445 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2446 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2447 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2449 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2451 if (wiphy_register(wiphy)) {
2456 set_default_iw_params(usbdev);
2460 disassociate(usbdev, 1);
2461 netif_carrier_off(usbdev->net);
2463 queue_delayed_work(priv->workqueue, &priv->stats_work,
2464 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2469 cancel_delayed_work_sync(&priv->stats_work);
2470 cancel_delayed_work_sync(&priv->scan_work);
2471 cancel_work_sync(&priv->work);
2472 flush_workqueue(priv->workqueue);
2473 destroy_workqueue(priv->workqueue);
2480 static void rndis_wext_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2482 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2484 /* turn radio off */
2485 disassociate(usbdev, 0);
2487 cancel_delayed_work_sync(&priv->stats_work);
2488 cancel_delayed_work_sync(&priv->scan_work);
2489 cancel_work_sync(&priv->work);
2490 flush_workqueue(priv->workqueue);
2491 destroy_workqueue(priv->workqueue);
2493 if (priv && priv->wpa_ie_len)
2494 kfree(priv->wpa_ie);
2496 rndis_unbind(usbdev, intf);
2498 wiphy_unregister(priv->wdev.wiphy);
2499 wiphy_free(priv->wdev.wiphy);
2503 static int rndis_wext_reset(struct usbnet *usbdev)
2505 return deauthenticate(usbdev);
2509 static const struct driver_info bcm4320b_info = {
2510 .description = "Wireless RNDIS device, BCM4320b based",
2511 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2512 .bind = rndis_wext_bind,
2513 .unbind = rndis_wext_unbind,
2514 .status = rndis_status,
2515 .rx_fixup = rndis_rx_fixup,
2516 .tx_fixup = rndis_tx_fixup,
2517 .reset = rndis_wext_reset,
2518 .early_init = bcm4320_early_init,
2519 .link_change = rndis_wext_link_change,
2522 static const struct driver_info bcm4320a_info = {
2523 .description = "Wireless RNDIS device, BCM4320a based",
2524 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2525 .bind = rndis_wext_bind,
2526 .unbind = rndis_wext_unbind,
2527 .status = rndis_status,
2528 .rx_fixup = rndis_rx_fixup,
2529 .tx_fixup = rndis_tx_fixup,
2530 .reset = rndis_wext_reset,
2531 .early_init = bcm4320_early_init,
2532 .link_change = rndis_wext_link_change,
2535 static const struct driver_info rndis_wext_info = {
2536 .description = "Wireless RNDIS device",
2537 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2538 .bind = rndis_wext_bind,
2539 .unbind = rndis_wext_unbind,
2540 .status = rndis_status,
2541 .rx_fixup = rndis_rx_fixup,
2542 .tx_fixup = rndis_tx_fixup,
2543 .reset = rndis_wext_reset,
2544 .early_init = bcm4320_early_init,
2545 .link_change = rndis_wext_link_change,
2548 /*-------------------------------------------------------------------------*/
2550 static const struct usb_device_id products [] = {
2551 #define RNDIS_MASTER_INTERFACE \
2552 .bInterfaceClass = USB_CLASS_COMM, \
2553 .bInterfaceSubClass = 2 /* ACM */, \
2554 .bInterfaceProtocol = 0x0ff
2556 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2557 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2560 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2561 | USB_DEVICE_ID_MATCH_DEVICE,
2563 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2564 RNDIS_MASTER_INTERFACE,
2565 .driver_info = (unsigned long) &bcm4320b_info,
2567 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2568 | USB_DEVICE_ID_MATCH_DEVICE,
2570 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2571 RNDIS_MASTER_INTERFACE,
2572 .driver_info = (unsigned long) &bcm4320b_info,
2574 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2575 | USB_DEVICE_ID_MATCH_DEVICE,
2577 .idProduct = 0x011b, /* Belkin F5D7051 */
2578 RNDIS_MASTER_INTERFACE,
2579 .driver_info = (unsigned long) &bcm4320b_info,
2581 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2582 | USB_DEVICE_ID_MATCH_DEVICE,
2583 .idVendor = 0x1799, /* Belkin has two vendor ids */
2584 .idProduct = 0x011b, /* Belkin F5D7051 */
2585 RNDIS_MASTER_INTERFACE,
2586 .driver_info = (unsigned long) &bcm4320b_info,
2588 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2589 | USB_DEVICE_ID_MATCH_DEVICE,
2591 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2592 RNDIS_MASTER_INTERFACE,
2593 .driver_info = (unsigned long) &bcm4320b_info,
2595 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2596 | USB_DEVICE_ID_MATCH_DEVICE,
2598 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2599 RNDIS_MASTER_INTERFACE,
2600 .driver_info = (unsigned long) &bcm4320b_info,
2602 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2603 | USB_DEVICE_ID_MATCH_DEVICE,
2605 .idProduct = 0x1717, /* Asus WL169gE */
2606 RNDIS_MASTER_INTERFACE,
2607 .driver_info = (unsigned long) &bcm4320b_info,
2609 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2610 | USB_DEVICE_ID_MATCH_DEVICE,
2612 .idProduct = 0xd11b, /* Eminent EM4045 */
2613 RNDIS_MASTER_INTERFACE,
2614 .driver_info = (unsigned long) &bcm4320b_info,
2616 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2617 | USB_DEVICE_ID_MATCH_DEVICE,
2619 .idProduct = 0x0715, /* BT Voyager 1055 */
2620 RNDIS_MASTER_INTERFACE,
2621 .driver_info = (unsigned long) &bcm4320b_info,
2623 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2624 * parameters available, hardware probably contain older firmware version with
2625 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2628 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2629 | USB_DEVICE_ID_MATCH_DEVICE,
2631 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2632 RNDIS_MASTER_INTERFACE,
2633 .driver_info = (unsigned long) &bcm4320a_info,
2635 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2636 | USB_DEVICE_ID_MATCH_DEVICE,
2638 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2639 RNDIS_MASTER_INTERFACE,
2640 .driver_info = (unsigned long) &bcm4320a_info,
2642 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2643 | USB_DEVICE_ID_MATCH_DEVICE,
2645 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2646 RNDIS_MASTER_INTERFACE,
2647 .driver_info = (unsigned long) &bcm4320a_info,
2649 /* Generic Wireless RNDIS devices that we don't have exact
2650 * idVendor/idProduct/chip yet.
2653 /* RNDIS is MSFT's un-official variant of CDC ACM */
2654 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2655 .driver_info = (unsigned long) &rndis_wext_info,
2657 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2658 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2659 .driver_info = (unsigned long) &rndis_wext_info,
2663 MODULE_DEVICE_TABLE(usb, products);
2665 static struct usb_driver rndis_wlan_driver = {
2666 .name = "rndis_wlan",
2667 .id_table = products,
2668 .probe = usbnet_probe,
2669 .disconnect = usbnet_disconnect,
2670 .suspend = usbnet_suspend,
2671 .resume = usbnet_resume,
2674 static int __init rndis_wlan_init(void)
2676 return usb_register(&rndis_wlan_driver);
2678 module_init(rndis_wlan_init);
2680 static void __exit rndis_wlan_exit(void)
2682 usb_deregister(&rndis_wlan_driver);
2684 module_exit(rndis_wlan_exit);
2686 MODULE_AUTHOR("Bjorge Dijkstra");
2687 MODULE_AUTHOR("Jussi Kivilinna");
2688 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2689 MODULE_LICENSE("GPL");