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.
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 enum ndis_80211_addkey_bits {
200 ndis_80211_addkey_8021x_auth = cpu_to_le32(1 << 28),
201 ndis_80211_addkey_set_init_recv_seq = cpu_to_le32(1 << 29),
202 ndis_80211_addkey_pairwise_key = cpu_to_le32(1 << 30),
203 ndis_80211_addkey_transmit_key = cpu_to_le32(1 << 31),
206 enum ndis_80211_addwep_bits {
207 ndis_80211_addwep_perclient_key = cpu_to_le32(1 << 30),
208 ndis_80211_addwep_transmit_key = cpu_to_le32(1 << 31),
211 struct ndis_80211_ssid {
213 u8 essid[NDIS_802_11_LENGTH_SSID];
214 } __attribute__((packed));
216 struct ndis_80211_conf_freq_hop {
221 } __attribute__((packed));
223 struct ndis_80211_conf {
225 __le32 beacon_period;
228 struct ndis_80211_conf_freq_hop fh_config;
229 } __attribute__((packed));
231 struct ndis_80211_bssid_ex {
235 struct ndis_80211_ssid ssid;
239 struct ndis_80211_conf config;
241 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
244 } __attribute__((packed));
246 struct ndis_80211_bssid_list_ex {
248 struct ndis_80211_bssid_ex bssid[0];
249 } __attribute__((packed));
251 struct ndis_80211_fixed_ies {
253 __le16 beacon_interval;
255 } __attribute__((packed));
257 struct ndis_80211_wep_key {
262 } __attribute__((packed));
264 struct ndis_80211_key {
272 } __attribute__((packed));
274 struct ndis_80211_remove_key {
278 } __attribute__((packed));
280 struct ndis_config_param {
286 } __attribute__((packed));
288 struct ndis_80211_assoc_info {
293 __le16 listen_interval;
294 u8 cur_ap_address[6];
296 __le32 req_ie_length;
297 __le32 offset_req_ies;
304 __le32 resp_ie_length;
305 __le32 offset_resp_ies;
306 } __attribute__((packed));
308 /* these have to match what is in wpa_supplicant */
309 enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
310 enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
312 enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE,
313 KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE };
318 #define NET_TYPE_11FB 0
320 #define CAP_MODE_80211A 1
321 #define CAP_MODE_80211B 2
322 #define CAP_MODE_80211G 4
323 #define CAP_MODE_MASK 7
325 #define WORK_LINK_UP (1<<0)
326 #define WORK_LINK_DOWN (1<<1)
327 #define WORK_SET_MULTICAST_LIST (1<<2)
329 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
331 static const struct ieee80211_channel rndis_channels[] = {
332 { .center_freq = 2412 },
333 { .center_freq = 2417 },
334 { .center_freq = 2422 },
335 { .center_freq = 2427 },
336 { .center_freq = 2432 },
337 { .center_freq = 2437 },
338 { .center_freq = 2442 },
339 { .center_freq = 2447 },
340 { .center_freq = 2452 },
341 { .center_freq = 2457 },
342 { .center_freq = 2462 },
343 { .center_freq = 2467 },
344 { .center_freq = 2472 },
345 { .center_freq = 2484 },
348 static const struct ieee80211_rate rndis_rates[] = {
350 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
351 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
352 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
363 /* RNDIS device private data */
364 struct rndis_wext_private {
365 struct usbnet *usbdev;
367 struct wireless_dev wdev;
369 struct cfg80211_scan_request *scan_request;
371 struct workqueue_struct *workqueue;
372 struct delayed_work stats_work;
373 struct delayed_work scan_work;
374 struct work_struct work;
375 struct mutex command_lock;
376 spinlock_t stats_lock;
377 unsigned long work_pending;
379 struct ieee80211_supported_band band;
380 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
381 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
383 struct iw_statistics iwstats;
384 struct iw_statistics privstats;
389 /* module parameters */
390 char param_country[4];
391 int param_frameburst;
392 int param_afterburner;
393 int param_power_save;
394 int param_power_output;
395 int param_roamtrigger;
397 u32 param_workaround_interval;
402 struct ndis_80211_ssid essid;
404 /* encryption stuff */
405 int encr_tx_key_index;
406 char encr_keys[4][32];
414 int wpa_cipher_group;
416 u8 command_buffer[COMMAND_BUFFER_SIZE];
422 static int rndis_change_virtual_intf(struct wiphy *wiphy, int ifindex,
423 enum nl80211_iftype type, u32 *flags,
424 struct vif_params *params);
426 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
427 struct cfg80211_scan_request *request);
429 static struct cfg80211_ops rndis_config_ops = {
430 .change_virtual_intf = rndis_change_virtual_intf,
434 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
436 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
438 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
439 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
443 static struct rndis_wext_private *get_rndis_wext_priv(struct usbnet *dev)
445 return (struct rndis_wext_private *)dev->driver_priv;
449 static u32 get_bcm4320_power(struct rndis_wext_private *priv)
451 return BCM4320_DEFAULT_TXPOWER *
452 bcm4320_power_output[priv->param_power_output] / 100;
456 /* translate error code */
457 static int rndis_error_status(__le32 rndis_status)
460 switch (rndis_status) {
461 case RNDIS_STATUS_SUCCESS:
464 case RNDIS_STATUS_FAILURE:
465 case RNDIS_STATUS_INVALID_DATA:
468 case RNDIS_STATUS_NOT_SUPPORTED:
471 case RNDIS_STATUS_ADAPTER_NOT_READY:
472 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
480 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
482 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
485 struct rndis_msg_hdr *header;
486 struct rndis_query *get;
487 struct rndis_query_c *get_c;
491 buflen = *len + sizeof(*u.get);
492 if (buflen < CONTROL_BUFFER_SIZE)
493 buflen = CONTROL_BUFFER_SIZE;
495 if (buflen > COMMAND_BUFFER_SIZE) {
496 u.buf = kmalloc(buflen, GFP_KERNEL);
500 u.buf = priv->command_buffer;
503 mutex_lock(&priv->command_lock);
505 memset(u.get, 0, sizeof *u.get);
506 u.get->msg_type = RNDIS_MSG_QUERY;
507 u.get->msg_len = cpu_to_le32(sizeof *u.get);
510 ret = rndis_command(dev, u.header, buflen);
512 ret = le32_to_cpu(u.get_c->len);
513 *len = (*len > ret) ? ret : *len;
514 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
515 ret = rndis_error_status(u.get_c->status);
518 mutex_unlock(&priv->command_lock);
520 if (u.buf != priv->command_buffer)
526 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
528 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
531 struct rndis_msg_hdr *header;
532 struct rndis_set *set;
533 struct rndis_set_c *set_c;
537 buflen = len + sizeof(*u.set);
538 if (buflen < CONTROL_BUFFER_SIZE)
539 buflen = CONTROL_BUFFER_SIZE;
541 if (buflen > COMMAND_BUFFER_SIZE) {
542 u.buf = kmalloc(buflen, GFP_KERNEL);
546 u.buf = priv->command_buffer;
549 mutex_lock(&priv->command_lock);
551 memset(u.set, 0, sizeof *u.set);
552 u.set->msg_type = RNDIS_MSG_SET;
553 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
555 u.set->len = cpu_to_le32(len);
556 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
557 u.set->handle = cpu_to_le32(0);
558 memcpy(u.buf + sizeof(*u.set), data, len);
560 ret = rndis_command(dev, u.header, buflen);
562 ret = rndis_error_status(u.set_c->status);
564 mutex_unlock(&priv->command_lock);
566 if (u.buf != priv->command_buffer)
573 * Specs say that we can only set config parameters only soon after device
575 * value_type: 0 = u32, 2 = unicode string
577 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
578 int value_type, void *value)
580 struct ndis_config_param *infobuf;
581 int value_len, info_len, param_len, ret, i;
586 value_len = sizeof(__le32);
587 else if (value_type == 2)
588 value_len = strlen(value) * sizeof(__le16);
592 param_len = strlen(param) * sizeof(__le16);
593 info_len = sizeof(*infobuf) + param_len + value_len;
598 infobuf = kmalloc(info_len, GFP_KERNEL);
604 /* extra 12 bytes are for padding (debug output) */
605 memset(infobuf, 0xCC, info_len + 12);
609 devdbg(dev, "setting config parameter: %s, value: %s",
612 devdbg(dev, "setting config parameter: %s, value: %d",
613 param, *(u32 *)value);
615 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
616 infobuf->name_length = cpu_to_le32(param_len);
617 infobuf->type = cpu_to_le32(value_type);
618 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
619 infobuf->value_length = cpu_to_le32(value_len);
621 /* simple string to unicode string conversion */
622 unibuf = (void *)infobuf + sizeof(*infobuf);
623 for (i = 0; i < param_len / sizeof(__le16); i++)
624 unibuf[i] = cpu_to_le16(param[i]);
626 if (value_type == 2) {
627 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
628 for (i = 0; i < value_len / sizeof(__le16); i++)
629 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
631 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
632 *dst_value = cpu_to_le32(*(u32 *)value);
636 devdbg(dev, "info buffer (len: %d):", info_len);
637 for (i = 0; i < info_len; i += 12) {
638 u32 *tmp = (u32 *)((u8 *)infobuf + i);
639 devdbg(dev, "%08X:%08X:%08X",
642 cpu_to_be32(tmp[2]));
646 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
649 devdbg(dev, "setting rndis config paramater failed, %d.", ret);
655 static int rndis_set_config_parameter_str(struct usbnet *dev,
656 char *param, char *value)
658 return(rndis_set_config_parameter(dev, param, 2, value));
661 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
662 char *param, u32 value)
664 return(rndis_set_config_parameter(dev, param, 0, &value));
669 * data conversion functions
671 static int level_to_qual(int level)
673 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
674 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
678 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
684 /* see comment in wireless.h above the "struct iw_freq"
685 * definition for an explanation of this if
686 * NOTE: 1000000 is due to the kHz
688 if (dsconfig > 1000000) {
689 freq->m = dsconfig / 10;
694 /* convert from kHz to Hz */
699 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
701 if (freq->m < 1000 && freq->e == 0) {
702 if (freq->m >= 1 && freq->m <= 14)
703 *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
709 for (i = freq->e; i > 0; i--)
722 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
724 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
729 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
736 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
738 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
739 tmp[le32_to_cpu(ssid->length)] = 0;
740 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
747 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
749 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
752 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
754 memcpy(&priv->essid, ssid, sizeof(priv->essid));
756 devdbg(usbdev, "set_essid: radio_on = 1");
763 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
768 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
771 memset(bssid, 0, ETH_ALEN);
776 static int get_association_info(struct usbnet *usbdev,
777 struct ndis_80211_assoc_info *info, int len)
779 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
783 static int is_associated(struct usbnet *usbdev)
788 ret = get_bssid(usbdev, bssid);
790 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
794 static int disassociate(struct usbnet *usbdev, int reset_ssid)
796 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
797 struct ndis_80211_ssid ssid;
800 if (priv->radio_on) {
801 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
804 devdbg(usbdev, "disassociate: radio_on = 0");
811 /* disassociate causes radio to be turned off; if reset_ssid
812 * is given, set random ssid to enable radio */
814 ssid.length = cpu_to_le32(sizeof(ssid.essid));
815 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
817 ssid.essid[1] = 0xff;
818 for (i = 2; i < sizeof(ssid.essid); i++)
819 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
820 ret = set_essid(usbdev, &ssid);
826 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
828 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
832 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
833 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
835 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
836 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
837 auth_mode = ndis_80211_auth_wpa2;
839 auth_mode = ndis_80211_auth_wpa2_psk;
840 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
841 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
842 auth_mode = ndis_80211_auth_wpa;
843 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
844 auth_mode = ndis_80211_auth_wpa_psk;
846 auth_mode = ndis_80211_auth_wpa_none;
847 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
848 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
849 auth_mode = ndis_80211_auth_auto_switch;
851 auth_mode = ndis_80211_auth_shared;
853 auth_mode = ndis_80211_auth_open;
855 tmp = cpu_to_le32(auth_mode);
856 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
859 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
863 priv->wpa_version = wpa_version;
864 priv->wpa_authalg = authalg;
869 static int set_priv_filter(struct usbnet *usbdev)
871 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
874 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
876 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
877 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
878 tmp = cpu_to_le32(ndis_80211_priv_8021x_wep);
880 tmp = cpu_to_le32(ndis_80211_priv_accept_all);
882 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
887 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
889 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
893 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
897 if (pairwise & IW_AUTH_CIPHER_CCMP)
898 encr_mode = ndis_80211_encr_ccmp_enabled;
899 else if (pairwise & IW_AUTH_CIPHER_TKIP)
900 encr_mode = ndis_80211_encr_tkip_enabled;
902 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
903 encr_mode = ndis_80211_encr_wep_enabled;
904 else if (groupwise & IW_AUTH_CIPHER_CCMP)
905 encr_mode = ndis_80211_encr_ccmp_enabled;
906 else if (groupwise & IW_AUTH_CIPHER_TKIP)
907 encr_mode = ndis_80211_encr_tkip_enabled;
909 encr_mode = ndis_80211_encr_disabled;
911 tmp = cpu_to_le32(encr_mode);
912 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
915 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
919 priv->wpa_cipher_pair = pairwise;
920 priv->wpa_cipher_group = groupwise;
925 static int set_assoc_params(struct usbnet *usbdev)
927 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
929 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
930 set_priv_filter(usbdev);
931 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
937 static int set_infra_mode(struct usbnet *usbdev, int mode)
939 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
943 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
945 tmp = cpu_to_le32(mode);
946 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
949 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
953 /* NDIS drivers clear keys when infrastructure mode is
954 * changed. But Linux tools assume otherwise. So set the
956 if (priv->wpa_keymgmt == 0 ||
957 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
958 for (i = 0; i < 4; i++) {
959 if (priv->encr_key_len[i] > 0)
960 add_wep_key(usbdev, priv->encr_keys[i],
961 priv->encr_key_len[i], i);
965 priv->infra_mode = mode;
970 static void set_default_iw_params(struct usbnet *usbdev)
972 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
974 priv->wpa_keymgmt = 0;
975 priv->wpa_version = 0;
977 set_infra_mode(usbdev, ndis_80211_infra_infra);
978 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
979 IW_AUTH_ALG_OPEN_SYSTEM);
980 set_priv_filter(usbdev);
981 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
985 static int deauthenticate(struct usbnet *usbdev)
989 ret = disassociate(usbdev, 1);
990 set_default_iw_params(usbdev);
995 /* index must be 0 - N, as per NDIS */
996 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
998 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
999 struct ndis_80211_wep_key ndis_key;
1002 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
1005 memset(&ndis_key, 0, sizeof(ndis_key));
1007 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1008 ndis_key.length = cpu_to_le32(key_len);
1009 ndis_key.index = cpu_to_le32(index);
1010 memcpy(&ndis_key.material, key, key_len);
1012 if (index == priv->encr_tx_key_index) {
1013 ndis_key.index |= ndis_80211_addwep_transmit_key;
1014 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1015 IW_AUTH_CIPHER_NONE);
1017 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1021 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1024 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1029 priv->encr_key_len[index] = key_len;
1030 memcpy(&priv->encr_keys[index], key, key_len);
1036 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1037 int index, const struct sockaddr *addr,
1038 const u8 *rx_seq, int alg, int flags)
1040 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1041 struct ndis_80211_key ndis_key;
1044 if (index < 0 || index >= 4)
1046 if (key_len > sizeof(ndis_key.material) || key_len < 0)
1048 if ((flags & ndis_80211_addkey_set_init_recv_seq) && !rx_seq)
1050 if ((flags & ndis_80211_addkey_pairwise_key) && !addr)
1053 devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1054 !!(flags & ndis_80211_addkey_transmit_key),
1055 !!(flags & ndis_80211_addkey_pairwise_key),
1056 !!(flags & ndis_80211_addkey_set_init_recv_seq));
1058 memset(&ndis_key, 0, sizeof(ndis_key));
1060 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1061 sizeof(ndis_key.material) + key_len);
1062 ndis_key.length = cpu_to_le32(key_len);
1063 ndis_key.index = cpu_to_le32(index) | flags;
1065 if (alg == IW_ENCODE_ALG_TKIP && key_len == 32) {
1066 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1067 * different order than NDIS spec, so swap the order here. */
1068 memcpy(ndis_key.material, key, 16);
1069 memcpy(ndis_key.material + 16, key + 24, 8);
1070 memcpy(ndis_key.material + 24, key + 16, 8);
1072 memcpy(ndis_key.material, key, key_len);
1074 if (flags & ndis_80211_addkey_set_init_recv_seq)
1075 memcpy(ndis_key.rsc, rx_seq, 6);
1077 if (flags & ndis_80211_addkey_pairwise_key) {
1079 memcpy(ndis_key.bssid, addr->sa_data, ETH_ALEN);
1082 if (priv->infra_mode == ndis_80211_infra_adhoc)
1083 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1085 get_bssid(usbdev, ndis_key.bssid);
1088 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1089 le32_to_cpu(ndis_key.size));
1090 devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1094 priv->encr_key_len[index] = key_len;
1095 memcpy(&priv->encr_keys[index], ndis_key.material, key_len);
1096 if (flags & ndis_80211_addkey_transmit_key)
1097 priv->encr_tx_key_index = index;
1103 /* remove_key is for both wep and wpa */
1104 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1106 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1107 struct ndis_80211_remove_key remove_key;
1111 if (priv->encr_key_len[index] == 0)
1114 priv->encr_key_len[index] = 0;
1115 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1117 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
1118 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
1119 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
1120 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
1121 remove_key.size = cpu_to_le32(sizeof(remove_key));
1122 remove_key.index = cpu_to_le32(index);
1125 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
1127 ndis_80211_addkey_pairwise_key;
1128 memcpy(remove_key.bssid, bssid,
1129 sizeof(remove_key.bssid));
1131 memset(remove_key.bssid, 0xff,
1132 sizeof(remove_key.bssid));
1134 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1135 sizeof(remove_key));
1139 keyindex = cpu_to_le32(index);
1140 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1144 "removing encryption key %d failed (%08X)",
1150 /* if it is transmit key, disable encryption */
1151 if (index == priv->encr_tx_key_index)
1152 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1158 static void set_multicast_list(struct usbnet *usbdev)
1160 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1161 struct dev_mc_list *mclist;
1166 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1168 if (usbdev->net->flags & IFF_PROMISC) {
1169 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1170 RNDIS_PACKET_TYPE_ALL_LOCAL;
1171 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1172 usbdev->net->mc_count > priv->multicast_size) {
1173 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1174 } else if (usbdev->net->mc_count > 0) {
1175 size = min(priv->multicast_size, usbdev->net->mc_count);
1176 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1179 "couldn't alloc %d bytes of memory",
1184 mclist = usbdev->net->mc_list;
1185 for (i = 0; i < size && mclist; mclist = mclist->next) {
1186 if (mclist->dmi_addrlen != ETH_ALEN)
1189 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1193 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1195 if (ret == 0 && i > 0)
1196 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1198 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1200 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1201 i, priv->multicast_size, ret);
1206 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1209 devwarn(usbdev, "couldn't set packet filter: %08x",
1210 le32_to_cpu(filter));
1213 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1214 le32_to_cpu(filter), ret);
1221 static int rndis_change_virtual_intf(struct wiphy *wiphy, int ifindex,
1222 enum nl80211_iftype type, u32 *flags,
1223 struct vif_params *params)
1225 struct net_device *dev;
1226 struct usbnet *usbdev;
1229 /* we're under RTNL */
1230 dev = __dev_get_by_index(&init_net, ifindex);
1233 usbdev = netdev_priv(dev);
1236 case NL80211_IFTYPE_ADHOC:
1237 mode = ndis_80211_infra_adhoc;
1239 case NL80211_IFTYPE_STATION:
1240 mode = ndis_80211_infra_infra;
1246 return set_infra_mode(usbdev, mode);
1250 #define SCAN_DELAY_JIFFIES (HZ)
1251 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1252 struct cfg80211_scan_request *request)
1254 struct usbnet *usbdev = netdev_priv(dev);
1255 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1259 devdbg(usbdev, "cfg80211.scan");
1264 if (priv->scan_request && priv->scan_request != request)
1267 priv->scan_request = request;
1269 tmp = cpu_to_le32(1);
1270 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1273 /* Wait before retrieving scan results from device */
1274 queue_delayed_work(priv->workqueue, &priv->scan_work,
1275 SCAN_DELAY_JIFFIES);
1282 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1283 struct ndis_80211_bssid_ex *bssid)
1285 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1286 struct ieee80211_channel *channel;
1290 u16 beacon_interval;
1291 struct ndis_80211_fixed_ies *fixed;
1292 int ie_len, bssid_len;
1295 /* parse bssid structure */
1296 bssid_len = le32_to_cpu(bssid->length);
1298 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1299 sizeof(struct ndis_80211_fixed_ies))
1302 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1304 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1305 ie_len = min(bssid_len - (int)sizeof(*bssid),
1306 (int)le32_to_cpu(bssid->ie_length));
1307 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1311 /* extract data for cfg80211_inform_bss */
1312 channel = ieee80211_get_channel(priv->wdev.wiphy,
1313 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1317 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1318 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1319 capability = le16_to_cpu(fixed->capabilities);
1320 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1322 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1323 timestamp, capability, beacon_interval, ie, ie_len, signal,
1328 static int rndis_check_bssid_list(struct usbnet *usbdev)
1331 struct ndis_80211_bssid_list_ex *bssid_list;
1332 struct ndis_80211_bssid_ex *bssid;
1333 int ret = -EINVAL, len, count, bssid_len;
1335 devdbg(usbdev, "check_bssid_list");
1337 len = CONTROL_BUFFER_SIZE;
1338 buf = kmalloc(len, GFP_KERNEL);
1344 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1349 bssid = bssid_list->bssid;
1350 bssid_len = le32_to_cpu(bssid->length);
1351 count = le32_to_cpu(bssid_list->num_items);
1352 devdbg(usbdev, "check_bssid_list: %d BSSIDs found", count);
1354 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1355 rndis_bss_info_update(usbdev, bssid);
1357 bssid = (void *)bssid + bssid_len;
1358 bssid_len = le32_to_cpu(bssid->length);
1368 static void rndis_get_scan_results(struct work_struct *work)
1370 struct rndis_wext_private *priv =
1371 container_of(work, struct rndis_wext_private, scan_work.work);
1372 struct usbnet *usbdev = priv->usbdev;
1375 devdbg(usbdev, "get_scan_results");
1377 ret = rndis_check_bssid_list(usbdev);
1379 cfg80211_scan_done(priv->scan_request, ret < 0);
1381 priv->scan_request = NULL;
1386 * wireless extension handlers
1389 static int rndis_iw_commit(struct net_device *dev,
1390 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1397 static int rndis_iw_set_essid(struct net_device *dev,
1398 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1400 struct ndis_80211_ssid ssid;
1401 int length = wrqu->essid.length;
1402 struct usbnet *usbdev = netdev_priv(dev);
1404 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1405 wrqu->essid.flags, wrqu->essid.length, essid);
1407 if (length > NDIS_802_11_LENGTH_SSID)
1408 length = NDIS_802_11_LENGTH_SSID;
1410 ssid.length = cpu_to_le32(length);
1412 memcpy(ssid.essid, essid, length);
1414 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1416 set_assoc_params(usbdev);
1418 if (!wrqu->essid.flags || length == 0)
1419 return disassociate(usbdev, 1);
1421 return set_essid(usbdev, &ssid);
1425 static int rndis_iw_get_essid(struct net_device *dev,
1426 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1428 struct ndis_80211_ssid ssid;
1429 struct usbnet *usbdev = netdev_priv(dev);
1432 ret = get_essid(usbdev, &ssid);
1434 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1435 wrqu->essid.flags = 1;
1436 wrqu->essid.length = le32_to_cpu(ssid.length);
1437 memcpy(essid, ssid.essid, wrqu->essid.length);
1438 essid[wrqu->essid.length] = 0;
1440 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1441 wrqu->essid.flags = 0;
1442 wrqu->essid.length = 0;
1444 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1449 static int rndis_iw_get_bssid(struct net_device *dev,
1450 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1452 struct usbnet *usbdev = netdev_priv(dev);
1453 unsigned char bssid[ETH_ALEN];
1456 ret = get_bssid(usbdev, bssid);
1459 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1461 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1463 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1464 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1470 static int rndis_iw_set_bssid(struct net_device *dev,
1471 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1473 struct usbnet *usbdev = netdev_priv(dev);
1474 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1477 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1479 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1481 /* user apps may set ap's mac address, which is not required;
1482 * they may fail to work if this function fails, so return
1485 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1491 static int rndis_iw_set_auth(struct net_device *dev,
1492 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1494 struct iw_param *p = &wrqu->param;
1495 struct usbnet *usbdev = netdev_priv(dev);
1496 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1497 int ret = -ENOTSUPP;
1499 switch (p->flags & IW_AUTH_INDEX) {
1500 case IW_AUTH_WPA_VERSION:
1501 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1502 priv->wpa_version = p->value;
1506 case IW_AUTH_CIPHER_PAIRWISE:
1507 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1508 priv->wpa_cipher_pair = p->value;
1512 case IW_AUTH_CIPHER_GROUP:
1513 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1514 priv->wpa_cipher_group = p->value;
1518 case IW_AUTH_KEY_MGMT:
1519 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1520 priv->wpa_keymgmt = p->value;
1524 case IW_AUTH_TKIP_COUNTERMEASURES:
1525 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1530 case IW_AUTH_DROP_UNENCRYPTED:
1531 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1535 case IW_AUTH_80211_AUTH_ALG:
1536 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1537 priv->wpa_authalg = p->value;
1541 case IW_AUTH_WPA_ENABLED:
1542 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1543 if (wrqu->param.value)
1544 deauthenticate(usbdev);
1548 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1549 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1554 case IW_AUTH_ROAMING_CONTROL:
1555 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1559 case IW_AUTH_PRIVACY_INVOKED:
1560 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1561 wrqu->param.flags & IW_AUTH_INDEX);
1565 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1566 p->flags & IW_AUTH_INDEX, p->value);
1572 static int rndis_iw_get_auth(struct net_device *dev,
1573 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1575 struct iw_param *p = &wrqu->param;
1576 struct usbnet *usbdev = netdev_priv(dev);
1577 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1579 switch (p->flags & IW_AUTH_INDEX) {
1580 case IW_AUTH_WPA_VERSION:
1581 p->value = priv->wpa_version;
1583 case IW_AUTH_CIPHER_PAIRWISE:
1584 p->value = priv->wpa_cipher_pair;
1586 case IW_AUTH_CIPHER_GROUP:
1587 p->value = priv->wpa_cipher_group;
1589 case IW_AUTH_KEY_MGMT:
1590 p->value = priv->wpa_keymgmt;
1592 case IW_AUTH_80211_AUTH_ALG:
1593 p->value = priv->wpa_authalg;
1596 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1597 wrqu->param.flags & IW_AUTH_INDEX);
1604 static int rndis_iw_set_encode(struct net_device *dev,
1605 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1607 struct usbnet *usbdev = netdev_priv(dev);
1608 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1609 int ret, index, key_len;
1612 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1614 /* iwconfig gives index as 1 - N */
1618 index = priv->encr_tx_key_index;
1620 if (index < 0 || index >= 4) {
1621 devwarn(usbdev, "encryption index out of range (%u)", index);
1625 /* remove key if disabled */
1626 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1627 if (remove_key(usbdev, index, NULL))
1633 /* global encryption state (for all keys) */
1634 if (wrqu->data.flags & IW_ENCODE_OPEN)
1635 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1636 IW_AUTH_ALG_OPEN_SYSTEM);
1637 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1638 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1639 IW_AUTH_ALG_SHARED_KEY);
1643 if (wrqu->data.length > 0) {
1644 key_len = wrqu->data.length;
1647 /* must be set as tx key */
1648 if (priv->encr_key_len[index] == 0)
1650 key_len = priv->encr_key_len[index];
1651 key = priv->encr_keys[index];
1652 priv->encr_tx_key_index = index;
1655 if (add_wep_key(usbdev, key, key_len, index) != 0)
1658 if (index == priv->encr_tx_key_index)
1659 /* ndis drivers want essid to be set after setting encr */
1660 set_essid(usbdev, &priv->essid);
1666 static int rndis_iw_set_encode_ext(struct net_device *dev,
1667 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1669 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1670 struct usbnet *usbdev = netdev_priv(dev);
1671 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1674 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1676 /* iwconfig gives index as 1 - N */
1680 keyidx = priv->encr_tx_key_index;
1682 if (keyidx < 0 || keyidx >= 4)
1685 if (ext->alg == WPA_ALG_WEP) {
1686 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1687 priv->encr_tx_key_index = keyidx;
1688 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1691 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1692 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1693 return remove_key(usbdev, keyidx, NULL);
1696 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID)
1697 flags |= ndis_80211_addkey_set_init_recv_seq;
1698 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY))
1699 flags |= ndis_80211_addkey_pairwise_key;
1700 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1701 flags |= ndis_80211_addkey_transmit_key;
1703 return add_wpa_key(usbdev, ext->key, ext->key_len, keyidx, &ext->addr,
1704 ext->rx_seq, ext->alg, flags);
1708 static int rndis_iw_set_genie(struct net_device *dev,
1709 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1711 struct usbnet *usbdev = netdev_priv(dev);
1712 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1718 for (j = 0; j < wrqu->data.length; j += 8)
1720 "SIOCSIWGENIE %04x - "
1721 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1722 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1723 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1725 /* clear existing IEs */
1726 if (priv->wpa_ie_len) {
1727 kfree(priv->wpa_ie);
1728 priv->wpa_ie_len = 0;
1732 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1734 priv->wpa_ie_len = wrqu->data.length;
1735 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1742 static int rndis_iw_get_genie(struct net_device *dev,
1743 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1745 struct usbnet *usbdev = netdev_priv(dev);
1746 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1748 devdbg(usbdev, "SIOCGIWGENIE");
1750 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1751 wrqu->data.length = 0;
1755 if (wrqu->data.length < priv->wpa_ie_len)
1758 wrqu->data.length = priv->wpa_ie_len;
1759 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1765 static int rndis_iw_set_rts(struct net_device *dev,
1766 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1768 struct usbnet *usbdev = netdev_priv(dev);
1770 devdbg(usbdev, "SIOCSIWRTS");
1772 tmp = cpu_to_le32(wrqu->rts.value);
1773 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1778 static int rndis_iw_get_rts(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_RTS_THRESHOLD, &tmp, &len);
1788 wrqu->rts.value = le32_to_cpu(tmp);
1789 wrqu->rts.flags = 1;
1790 wrqu->rts.disabled = 0;
1793 devdbg(usbdev, "SIOCGIWRTS: %d", wrqu->rts.value);
1799 static int rndis_iw_set_frag(struct net_device *dev,
1800 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1802 struct usbnet *usbdev = netdev_priv(dev);
1805 devdbg(usbdev, "SIOCSIWFRAG");
1807 tmp = cpu_to_le32(wrqu->frag.value);
1808 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1813 static int rndis_iw_get_frag(struct net_device *dev,
1814 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1816 struct usbnet *usbdev = netdev_priv(dev);
1821 ret = rndis_query_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1824 wrqu->frag.value = le32_to_cpu(tmp);
1825 wrqu->frag.flags = 1;
1826 wrqu->frag.disabled = 0;
1828 devdbg(usbdev, "SIOCGIWFRAG: %d", wrqu->frag.value);
1833 static int rndis_iw_set_freq(struct net_device *dev,
1834 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1836 struct usbnet *usbdev = netdev_priv(dev);
1837 struct ndis_80211_conf config;
1838 unsigned int dsconfig;
1841 /* this OID is valid only when not associated */
1842 if (is_associated(usbdev))
1846 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
1849 len = sizeof(config);
1850 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1852 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
1856 config.ds_config = cpu_to_le32(dsconfig);
1858 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
1859 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1864 static int rndis_iw_get_freq(struct net_device *dev,
1865 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1867 struct usbnet *usbdev = netdev_priv(dev);
1868 struct ndis_80211_conf config;
1871 len = sizeof(config);
1872 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1874 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
1876 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
1881 static int rndis_iw_get_txpower(struct net_device *dev,
1882 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1884 struct usbnet *usbdev = netdev_priv(dev);
1885 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1888 if (priv->radio_on) {
1889 /* fake since changing tx_power (by userlevel) not supported */
1890 tx_power = cpu_to_le32(get_bcm4320_power(priv));
1892 wrqu->txpower.flags = IW_TXPOW_MWATT;
1893 wrqu->txpower.value = le32_to_cpu(tx_power);
1894 wrqu->txpower.disabled = 0;
1896 wrqu->txpower.flags = IW_TXPOW_MWATT;
1897 wrqu->txpower.value = 0;
1898 wrqu->txpower.disabled = 1;
1901 devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
1907 static int rndis_iw_set_txpower(struct net_device *dev,
1908 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1910 struct usbnet *usbdev = netdev_priv(dev);
1911 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1912 __le32 tx_power = 0;
1914 if (!wrqu->txpower.disabled) {
1915 if (wrqu->txpower.flags == IW_TXPOW_MWATT)
1916 tx_power = cpu_to_le32(wrqu->txpower.value);
1917 else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
1918 if (wrqu->txpower.value > 20)
1919 tx_power = cpu_to_le32(128);
1920 else if (wrqu->txpower.value < -43)
1921 tx_power = cpu_to_le32(127);
1924 tmp = wrqu->txpower.value;
1927 tx_power = cpu_to_le32((unsigned char)tmp);
1932 devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
1934 if (le32_to_cpu(tx_power) != 0) {
1935 /* txpower unsupported, just turn radio on */
1936 if (!priv->radio_on)
1937 return disassociate(usbdev, 1);
1938 return 0; /* all ready on */
1941 /* tx_power == 0, turn off radio */
1942 return disassociate(usbdev, 0);
1946 static int rndis_iw_get_rate(struct net_device *dev,
1947 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1949 struct usbnet *usbdev = netdev_priv(dev);
1954 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
1956 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
1957 wrqu->bitrate.disabled = 0;
1958 wrqu->bitrate.flags = 1;
1964 static int rndis_iw_set_mlme(struct net_device *dev,
1965 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1967 struct usbnet *usbdev = netdev_priv(dev);
1968 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1969 struct iw_mlme *mlme = (struct iw_mlme *)extra;
1970 unsigned char bssid[ETH_ALEN];
1972 get_bssid(usbdev, bssid);
1974 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
1977 switch (mlme->cmd) {
1978 case IW_MLME_DEAUTH:
1979 return deauthenticate(usbdev);
1980 case IW_MLME_DISASSOC:
1981 return disassociate(usbdev, priv->radio_on);
1990 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
1992 struct usbnet *usbdev = netdev_priv(dev);
1993 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1994 unsigned long flags;
1996 spin_lock_irqsave(&priv->stats_lock, flags);
1997 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
1998 spin_unlock_irqrestore(&priv->stats_lock, flags);
2000 return &priv->iwstats;
2004 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2005 static const iw_handler rndis_iw_handler[] =
2007 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
2008 IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname,
2009 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
2010 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
2011 IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode,
2012 IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode,
2013 IW_IOCTL(SIOCGIWRANGE) = (iw_handler) cfg80211_wext_giwrange,
2014 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
2015 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
2016 IW_IOCTL(SIOCSIWSCAN) = (iw_handler) cfg80211_wext_siwscan,
2017 IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan,
2018 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
2019 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
2020 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
2021 IW_IOCTL(SIOCSIWRTS) = rndis_iw_set_rts,
2022 IW_IOCTL(SIOCGIWRTS) = rndis_iw_get_rts,
2023 IW_IOCTL(SIOCSIWFRAG) = rndis_iw_set_frag,
2024 IW_IOCTL(SIOCGIWFRAG) = rndis_iw_get_frag,
2025 IW_IOCTL(SIOCSIWTXPOW) = rndis_iw_set_txpower,
2026 IW_IOCTL(SIOCGIWTXPOW) = rndis_iw_get_txpower,
2027 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2028 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2029 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2030 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2031 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2032 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2033 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2036 static const iw_handler rndis_wext_private_handler[] = {
2039 static const struct iw_priv_args rndis_wext_private_args[] = {
2043 static const struct iw_handler_def rndis_iw_handlers = {
2044 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2045 .num_private = ARRAY_SIZE(rndis_wext_private_handler),
2046 .num_private_args = ARRAY_SIZE(rndis_wext_private_args),
2047 .standard = (iw_handler *)rndis_iw_handler,
2048 .private = (iw_handler *)rndis_wext_private_handler,
2049 .private_args = (struct iw_priv_args *)rndis_wext_private_args,
2050 .get_wireless_stats = rndis_get_wireless_stats,
2054 static void rndis_wext_worker(struct work_struct *work)
2056 struct rndis_wext_private *priv =
2057 container_of(work, struct rndis_wext_private, work);
2058 struct usbnet *usbdev = priv->usbdev;
2059 union iwreq_data evt;
2060 unsigned char bssid[ETH_ALEN];
2061 struct ndis_80211_assoc_info *info;
2062 int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32;
2065 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) {
2066 netif_carrier_on(usbdev->net);
2068 info = kzalloc(assoc_size, GFP_KERNEL);
2072 /* Get association info IEs from device and send them back to
2074 ret = get_association_info(usbdev, info, assoc_size);
2076 evt.data.length = le32_to_cpu(info->req_ie_length);
2077 if (evt.data.length > 0) {
2078 offset = le32_to_cpu(info->offset_req_ies);
2079 wireless_send_event(usbdev->net,
2080 IWEVASSOCREQIE, &evt,
2081 (char *)info + offset);
2084 evt.data.length = le32_to_cpu(info->resp_ie_length);
2085 if (evt.data.length > 0) {
2086 offset = le32_to_cpu(info->offset_resp_ies);
2087 wireless_send_event(usbdev->net,
2088 IWEVASSOCRESPIE, &evt,
2089 (char *)info + offset);
2096 ret = get_bssid(usbdev, bssid);
2099 evt.data.length = 0;
2100 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2101 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2105 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) {
2106 netif_carrier_off(usbdev->net);
2109 evt.data.length = 0;
2110 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2111 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2114 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2115 set_multicast_list(usbdev);
2118 static void rndis_wext_set_multicast_list(struct net_device *dev)
2120 struct usbnet *usbdev = netdev_priv(dev);
2121 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2123 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2126 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2127 queue_work(priv->workqueue, &priv->work);
2130 static void rndis_wext_link_change(struct usbnet *usbdev, int state)
2132 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2134 /* queue work to avoid recursive calls into rndis_command */
2135 set_bit(state ? WORK_LINK_UP : WORK_LINK_DOWN, &priv->work_pending);
2136 queue_work(priv->workqueue, &priv->work);
2140 static int rndis_wext_get_caps(struct usbnet *usbdev)
2145 } networks_supported;
2146 int len, retval, i, n;
2147 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2149 /* determine supported modes */
2150 len = sizeof(networks_supported);
2151 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2152 &networks_supported, &len);
2154 n = le32_to_cpu(networks_supported.num_items);
2157 for (i = 0; i < n; i++) {
2158 switch (le32_to_cpu(networks_supported.items[i])) {
2159 case ndis_80211_type_freq_hop:
2160 case ndis_80211_type_direct_seq:
2161 priv->caps |= CAP_MODE_80211B;
2163 case ndis_80211_type_ofdm_a:
2164 priv->caps |= CAP_MODE_80211A;
2166 case ndis_80211_type_ofdm_g:
2167 priv->caps |= CAP_MODE_80211G;
2177 #define STATS_UPDATE_JIFFIES (HZ)
2178 static void rndis_update_wireless_stats(struct work_struct *work)
2180 struct rndis_wext_private *priv =
2181 container_of(work, struct rndis_wext_private, stats_work.work);
2182 struct usbnet *usbdev = priv->usbdev;
2183 struct iw_statistics iwstats;
2186 unsigned long flags;
2187 int update_jiffies = STATS_UPDATE_JIFFIES;
2190 spin_lock_irqsave(&priv->stats_lock, flags);
2191 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2192 spin_unlock_irqrestore(&priv->stats_lock, flags);
2194 /* only update stats when connected */
2195 if (!is_associated(usbdev)) {
2196 iwstats.qual.qual = 0;
2197 iwstats.qual.level = 0;
2198 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2199 | IW_QUAL_LEVEL_UPDATED
2200 | IW_QUAL_NOISE_INVALID
2201 | IW_QUAL_QUAL_INVALID
2202 | IW_QUAL_LEVEL_INVALID;
2207 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2209 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2212 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2213 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2214 iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
2215 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2216 | IW_QUAL_LEVEL_UPDATED
2217 | IW_QUAL_NOISE_INVALID;
2220 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2223 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2225 iwstats.discard.misc += le32_to_cpu(tmp);
2228 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2230 iwstats.discard.misc += le32_to_cpu(tmp);
2233 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2235 iwstats.discard.misc += le32_to_cpu(tmp);
2237 /* Workaround transfer stalls on poor quality links.
2238 * TODO: find right way to fix these stalls (as stalls do not happen
2239 * with ndiswrapper/windows driver). */
2240 if (iwstats.qual.qual <= 25) {
2241 /* Decrease stats worker interval to catch stalls.
2242 * faster. Faster than 400-500ms causes packet loss,
2243 * Slower doesn't catch stalls fast enough.
2245 j = msecs_to_jiffies(priv->param_workaround_interval);
2246 if (j > STATS_UPDATE_JIFFIES)
2247 j = STATS_UPDATE_JIFFIES;
2252 /* Send scan OID. Use of both OIDs is required to get device
2255 tmp = cpu_to_le32(1);
2256 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2259 len = CONTROL_BUFFER_SIZE;
2260 buf = kmalloc(len, GFP_KERNEL);
2264 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2268 spin_lock_irqsave(&priv->stats_lock, flags);
2269 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2270 spin_unlock_irqrestore(&priv->stats_lock, flags);
2272 if (update_jiffies >= HZ)
2273 update_jiffies = round_jiffies_relative(update_jiffies);
2275 j = round_jiffies_relative(update_jiffies);
2276 if (abs(j - update_jiffies) <= 10)
2280 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2284 static int bcm4320a_early_init(struct usbnet *usbdev)
2286 /* bcm4320a doesn't handle configuration parameters well. Try
2287 * set any and you get partially zeroed mac and broken device.
2294 static int bcm4320b_early_init(struct usbnet *usbdev)
2296 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2299 /* Early initialization settings, setting these won't have effect
2300 * if called after generic_rndis_bind().
2303 priv->param_country[0] = modparam_country[0];
2304 priv->param_country[1] = modparam_country[1];
2305 priv->param_country[2] = 0;
2306 priv->param_frameburst = modparam_frameburst;
2307 priv->param_afterburner = modparam_afterburner;
2308 priv->param_power_save = modparam_power_save;
2309 priv->param_power_output = modparam_power_output;
2310 priv->param_roamtrigger = modparam_roamtrigger;
2311 priv->param_roamdelta = modparam_roamdelta;
2313 priv->param_country[0] = toupper(priv->param_country[0]);
2314 priv->param_country[1] = toupper(priv->param_country[1]);
2315 /* doesn't support EU as country code, use FI instead */
2316 if (!strcmp(priv->param_country, "EU"))
2317 strcpy(priv->param_country, "FI");
2319 if (priv->param_power_save < 0)
2320 priv->param_power_save = 0;
2321 else if (priv->param_power_save > 2)
2322 priv->param_power_save = 2;
2324 if (priv->param_power_output < 0)
2325 priv->param_power_output = 0;
2326 else if (priv->param_power_output > 3)
2327 priv->param_power_output = 3;
2329 if (priv->param_roamtrigger < -80)
2330 priv->param_roamtrigger = -80;
2331 else if (priv->param_roamtrigger > -60)
2332 priv->param_roamtrigger = -60;
2334 if (priv->param_roamdelta < 0)
2335 priv->param_roamdelta = 0;
2336 else if (priv->param_roamdelta > 2)
2337 priv->param_roamdelta = 2;
2339 if (modparam_workaround_interval < 0)
2340 priv->param_workaround_interval = 500;
2342 priv->param_workaround_interval = modparam_workaround_interval;
2344 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2345 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2346 priv->param_frameburst ? "1" : "0");
2347 rndis_set_config_parameter_str(usbdev, "Afterburner",
2348 priv->param_afterburner ? "1" : "0");
2349 sprintf(buf, "%d", priv->param_power_save);
2350 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2351 sprintf(buf, "%d", priv->param_power_output);
2352 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2353 sprintf(buf, "%d", priv->param_roamtrigger);
2354 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2355 sprintf(buf, "%d", priv->param_roamdelta);
2356 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2361 /* same as rndis_netdev_ops but with local multicast handler */
2362 static const struct net_device_ops rndis_wext_netdev_ops = {
2363 .ndo_open = usbnet_open,
2364 .ndo_stop = usbnet_stop,
2365 .ndo_start_xmit = usbnet_start_xmit,
2366 .ndo_tx_timeout = usbnet_tx_timeout,
2367 .ndo_set_mac_address = eth_mac_addr,
2368 .ndo_validate_addr = eth_validate_addr,
2369 .ndo_set_multicast_list = rndis_wext_set_multicast_list,
2373 static int rndis_wext_bind(struct usbnet *usbdev, struct usb_interface *intf)
2375 struct wiphy *wiphy;
2376 struct rndis_wext_private *priv;
2380 /* allocate wiphy and rndis private data
2381 * NOTE: We only support a single virtual interface, so wiphy
2382 * and wireless_dev are somewhat synonymous for this device.
2384 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wext_private));
2388 priv = wiphy_priv(wiphy);
2389 usbdev->net->ieee80211_ptr = &priv->wdev;
2390 priv->wdev.wiphy = wiphy;
2391 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2393 /* These have to be initialized before calling generic_rndis_bind().
2394 * Otherwise we'll be in big trouble in rndis_wext_early_init().
2396 usbdev->driver_priv = priv;
2397 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2398 priv->usbdev = usbdev;
2400 mutex_init(&priv->command_lock);
2401 spin_lock_init(&priv->stats_lock);
2403 /* because rndis_command() sleeps we need to use workqueue */
2404 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2405 INIT_WORK(&priv->work, rndis_wext_worker);
2406 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2407 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2409 /* try bind rndis_host */
2410 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2414 /* generic_rndis_bind set packet filter to multicast_all+
2415 * promisc mode which doesn't work well for our devices (device
2416 * picks up rssi to closest station instead of to access point).
2418 * rndis_host wants to avoid all OID as much as possible
2419 * so do promisc/multicast handling in rndis_wext.
2421 usbdev->net->netdev_ops = &rndis_wext_netdev_ops;
2423 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2424 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2428 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2430 priv->multicast_size = le32_to_cpu(tmp);
2431 if (retval < 0 || priv->multicast_size < 0)
2432 priv->multicast_size = 0;
2433 if (priv->multicast_size > 0)
2434 usbdev->net->flags |= IFF_MULTICAST;
2436 usbdev->net->flags &= ~IFF_MULTICAST;
2438 priv->iwstats.qual.qual = 0;
2439 priv->iwstats.qual.level = 0;
2440 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2441 | IW_QUAL_LEVEL_UPDATED
2442 | IW_QUAL_NOISE_INVALID
2443 | IW_QUAL_QUAL_INVALID
2444 | IW_QUAL_LEVEL_INVALID;
2446 /* fill-out wiphy structure and register w/ cfg80211 */
2447 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2448 wiphy->privid = rndis_wiphy_privid;
2449 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2450 | BIT(NL80211_IFTYPE_ADHOC);
2451 wiphy->max_scan_ssids = 1;
2453 /* TODO: fill-out band information based on priv->caps */
2454 rndis_wext_get_caps(usbdev);
2456 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2457 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2458 priv->band.channels = priv->channels;
2459 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2460 priv->band.bitrates = priv->rates;
2461 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2462 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2463 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2465 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2467 if (wiphy_register(wiphy)) {
2472 set_default_iw_params(usbdev);
2476 disassociate(usbdev, 1);
2477 netif_carrier_off(usbdev->net);
2479 queue_delayed_work(priv->workqueue, &priv->stats_work,
2480 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2485 cancel_delayed_work_sync(&priv->stats_work);
2486 cancel_delayed_work_sync(&priv->scan_work);
2487 cancel_work_sync(&priv->work);
2488 flush_workqueue(priv->workqueue);
2489 destroy_workqueue(priv->workqueue);
2496 static void rndis_wext_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2498 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2500 /* turn radio off */
2501 disassociate(usbdev, 0);
2503 cancel_delayed_work_sync(&priv->stats_work);
2504 cancel_delayed_work_sync(&priv->scan_work);
2505 cancel_work_sync(&priv->work);
2506 flush_workqueue(priv->workqueue);
2507 destroy_workqueue(priv->workqueue);
2509 if (priv && priv->wpa_ie_len)
2510 kfree(priv->wpa_ie);
2512 rndis_unbind(usbdev, intf);
2514 wiphy_unregister(priv->wdev.wiphy);
2515 wiphy_free(priv->wdev.wiphy);
2519 static int rndis_wext_reset(struct usbnet *usbdev)
2521 return deauthenticate(usbdev);
2525 static const struct driver_info bcm4320b_info = {
2526 .description = "Wireless RNDIS device, BCM4320b based",
2527 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2528 .bind = rndis_wext_bind,
2529 .unbind = rndis_wext_unbind,
2530 .status = rndis_status,
2531 .rx_fixup = rndis_rx_fixup,
2532 .tx_fixup = rndis_tx_fixup,
2533 .reset = rndis_wext_reset,
2534 .early_init = bcm4320b_early_init,
2535 .link_change = rndis_wext_link_change,
2538 static const struct driver_info bcm4320a_info = {
2539 .description = "Wireless RNDIS device, BCM4320a based",
2540 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2541 .bind = rndis_wext_bind,
2542 .unbind = rndis_wext_unbind,
2543 .status = rndis_status,
2544 .rx_fixup = rndis_rx_fixup,
2545 .tx_fixup = rndis_tx_fixup,
2546 .reset = rndis_wext_reset,
2547 .early_init = bcm4320a_early_init,
2548 .link_change = rndis_wext_link_change,
2551 static const struct driver_info rndis_wext_info = {
2552 .description = "Wireless RNDIS device",
2553 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2554 .bind = rndis_wext_bind,
2555 .unbind = rndis_wext_unbind,
2556 .status = rndis_status,
2557 .rx_fixup = rndis_rx_fixup,
2558 .tx_fixup = rndis_tx_fixup,
2559 .reset = rndis_wext_reset,
2560 .early_init = bcm4320a_early_init,
2561 .link_change = rndis_wext_link_change,
2564 /*-------------------------------------------------------------------------*/
2566 static const struct usb_device_id products [] = {
2567 #define RNDIS_MASTER_INTERFACE \
2568 .bInterfaceClass = USB_CLASS_COMM, \
2569 .bInterfaceSubClass = 2 /* ACM */, \
2570 .bInterfaceProtocol = 0x0ff
2572 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2573 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2576 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2577 | USB_DEVICE_ID_MATCH_DEVICE,
2579 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2580 RNDIS_MASTER_INTERFACE,
2581 .driver_info = (unsigned long) &bcm4320b_info,
2583 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2584 | USB_DEVICE_ID_MATCH_DEVICE,
2586 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2587 RNDIS_MASTER_INTERFACE,
2588 .driver_info = (unsigned long) &bcm4320b_info,
2590 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2591 | USB_DEVICE_ID_MATCH_DEVICE,
2593 .idProduct = 0x011b, /* Belkin F5D7051 */
2594 RNDIS_MASTER_INTERFACE,
2595 .driver_info = (unsigned long) &bcm4320b_info,
2597 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2598 | USB_DEVICE_ID_MATCH_DEVICE,
2599 .idVendor = 0x1799, /* Belkin has two vendor ids */
2600 .idProduct = 0x011b, /* Belkin F5D7051 */
2601 RNDIS_MASTER_INTERFACE,
2602 .driver_info = (unsigned long) &bcm4320b_info,
2604 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2605 | USB_DEVICE_ID_MATCH_DEVICE,
2607 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2608 RNDIS_MASTER_INTERFACE,
2609 .driver_info = (unsigned long) &bcm4320b_info,
2611 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2612 | USB_DEVICE_ID_MATCH_DEVICE,
2614 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2615 RNDIS_MASTER_INTERFACE,
2616 .driver_info = (unsigned long) &bcm4320b_info,
2618 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2619 | USB_DEVICE_ID_MATCH_DEVICE,
2621 .idProduct = 0x1717, /* Asus WL169gE */
2622 RNDIS_MASTER_INTERFACE,
2623 .driver_info = (unsigned long) &bcm4320b_info,
2625 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2626 | USB_DEVICE_ID_MATCH_DEVICE,
2628 .idProduct = 0xd11b, /* Eminent EM4045 */
2629 RNDIS_MASTER_INTERFACE,
2630 .driver_info = (unsigned long) &bcm4320b_info,
2632 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2633 | USB_DEVICE_ID_MATCH_DEVICE,
2635 .idProduct = 0x0715, /* BT Voyager 1055 */
2636 RNDIS_MASTER_INTERFACE,
2637 .driver_info = (unsigned long) &bcm4320b_info,
2639 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2640 * parameters available, hardware probably contain older firmware version with
2641 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2644 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2645 | USB_DEVICE_ID_MATCH_DEVICE,
2647 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2648 RNDIS_MASTER_INTERFACE,
2649 .driver_info = (unsigned long) &bcm4320a_info,
2651 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2652 | USB_DEVICE_ID_MATCH_DEVICE,
2654 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2655 RNDIS_MASTER_INTERFACE,
2656 .driver_info = (unsigned long) &bcm4320a_info,
2658 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2659 | USB_DEVICE_ID_MATCH_DEVICE,
2661 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2662 RNDIS_MASTER_INTERFACE,
2663 .driver_info = (unsigned long) &bcm4320a_info,
2665 /* Generic Wireless RNDIS devices that we don't have exact
2666 * idVendor/idProduct/chip yet.
2669 /* RNDIS is MSFT's un-official variant of CDC ACM */
2670 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2671 .driver_info = (unsigned long) &rndis_wext_info,
2673 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2674 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2675 .driver_info = (unsigned long) &rndis_wext_info,
2679 MODULE_DEVICE_TABLE(usb, products);
2681 static struct usb_driver rndis_wlan_driver = {
2682 .name = "rndis_wlan",
2683 .id_table = products,
2684 .probe = usbnet_probe,
2685 .disconnect = usbnet_disconnect,
2686 .suspend = usbnet_suspend,
2687 .resume = usbnet_resume,
2690 static int __init rndis_wlan_init(void)
2692 return usb_register(&rndis_wlan_driver);
2694 module_init(rndis_wlan_init);
2696 static void __exit rndis_wlan_exit(void)
2698 usb_deregister(&rndis_wlan_driver);
2700 module_exit(rndis_wlan_exit);
2702 MODULE_AUTHOR("Bjorge Dijkstra");
2703 MODULE_AUTHOR("Jussi Kivilinna");
2704 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2705 MODULE_LICENSE("GPL");