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_wlan_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];
408 char encr_key_wpa[4];
415 int wpa_cipher_group;
417 u8 command_buffer[COMMAND_BUFFER_SIZE];
423 static int rndis_change_virtual_intf(struct wiphy *wiphy,
424 struct net_device *dev,
425 enum nl80211_iftype type, u32 *flags,
426 struct vif_params *params);
428 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
429 struct cfg80211_scan_request *request);
431 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
433 static struct cfg80211_ops rndis_config_ops = {
434 .change_virtual_intf = rndis_change_virtual_intf,
436 .set_wiphy_params = rndis_set_wiphy_params,
439 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
441 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
443 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
444 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
448 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
450 return (struct rndis_wlan_private *)dev->driver_priv;
454 static u32 get_bcm4320_power(struct rndis_wlan_private *priv)
456 return BCM4320_DEFAULT_TXPOWER *
457 bcm4320_power_output[priv->param_power_output] / 100;
461 /* translate error code */
462 static int rndis_error_status(__le32 rndis_status)
465 switch (rndis_status) {
466 case RNDIS_STATUS_SUCCESS:
469 case RNDIS_STATUS_FAILURE:
470 case RNDIS_STATUS_INVALID_DATA:
473 case RNDIS_STATUS_NOT_SUPPORTED:
476 case RNDIS_STATUS_ADAPTER_NOT_READY:
477 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
485 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
487 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
490 struct rndis_msg_hdr *header;
491 struct rndis_query *get;
492 struct rndis_query_c *get_c;
496 buflen = *len + sizeof(*u.get);
497 if (buflen < CONTROL_BUFFER_SIZE)
498 buflen = CONTROL_BUFFER_SIZE;
500 if (buflen > COMMAND_BUFFER_SIZE) {
501 u.buf = kmalloc(buflen, GFP_KERNEL);
505 u.buf = priv->command_buffer;
508 mutex_lock(&priv->command_lock);
510 memset(u.get, 0, sizeof *u.get);
511 u.get->msg_type = RNDIS_MSG_QUERY;
512 u.get->msg_len = cpu_to_le32(sizeof *u.get);
515 ret = rndis_command(dev, u.header, buflen);
517 ret = le32_to_cpu(u.get_c->len);
518 *len = (*len > ret) ? ret : *len;
519 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
520 ret = rndis_error_status(u.get_c->status);
523 mutex_unlock(&priv->command_lock);
525 if (u.buf != priv->command_buffer)
531 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
533 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
536 struct rndis_msg_hdr *header;
537 struct rndis_set *set;
538 struct rndis_set_c *set_c;
542 buflen = len + sizeof(*u.set);
543 if (buflen < CONTROL_BUFFER_SIZE)
544 buflen = CONTROL_BUFFER_SIZE;
546 if (buflen > COMMAND_BUFFER_SIZE) {
547 u.buf = kmalloc(buflen, GFP_KERNEL);
551 u.buf = priv->command_buffer;
554 mutex_lock(&priv->command_lock);
556 memset(u.set, 0, sizeof *u.set);
557 u.set->msg_type = RNDIS_MSG_SET;
558 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
560 u.set->len = cpu_to_le32(len);
561 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
562 u.set->handle = cpu_to_le32(0);
563 memcpy(u.buf + sizeof(*u.set), data, len);
565 ret = rndis_command(dev, u.header, buflen);
567 ret = rndis_error_status(u.set_c->status);
569 mutex_unlock(&priv->command_lock);
571 if (u.buf != priv->command_buffer)
578 * Specs say that we can only set config parameters only soon after device
580 * value_type: 0 = u32, 2 = unicode string
582 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
583 int value_type, void *value)
585 struct ndis_config_param *infobuf;
586 int value_len, info_len, param_len, ret, i;
591 value_len = sizeof(__le32);
592 else if (value_type == 2)
593 value_len = strlen(value) * sizeof(__le16);
597 param_len = strlen(param) * sizeof(__le16);
598 info_len = sizeof(*infobuf) + param_len + value_len;
603 infobuf = kmalloc(info_len, GFP_KERNEL);
609 /* extra 12 bytes are for padding (debug output) */
610 memset(infobuf, 0xCC, info_len + 12);
614 devdbg(dev, "setting config parameter: %s, value: %s",
617 devdbg(dev, "setting config parameter: %s, value: %d",
618 param, *(u32 *)value);
620 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
621 infobuf->name_length = cpu_to_le32(param_len);
622 infobuf->type = cpu_to_le32(value_type);
623 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
624 infobuf->value_length = cpu_to_le32(value_len);
626 /* simple string to unicode string conversion */
627 unibuf = (void *)infobuf + sizeof(*infobuf);
628 for (i = 0; i < param_len / sizeof(__le16); i++)
629 unibuf[i] = cpu_to_le16(param[i]);
631 if (value_type == 2) {
632 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
633 for (i = 0; i < value_len / sizeof(__le16); i++)
634 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
636 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
637 *dst_value = cpu_to_le32(*(u32 *)value);
641 devdbg(dev, "info buffer (len: %d):", info_len);
642 for (i = 0; i < info_len; i += 12) {
643 u32 *tmp = (u32 *)((u8 *)infobuf + i);
644 devdbg(dev, "%08X:%08X:%08X",
647 cpu_to_be32(tmp[2]));
651 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
654 devdbg(dev, "setting rndis config parameter failed, %d.", ret);
660 static int rndis_set_config_parameter_str(struct usbnet *dev,
661 char *param, char *value)
663 return(rndis_set_config_parameter(dev, param, 2, value));
666 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
667 char *param, u32 value)
669 return(rndis_set_config_parameter(dev, param, 0, &value));
674 * data conversion functions
676 static int level_to_qual(int level)
678 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
679 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
683 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
689 /* see comment in wireless.h above the "struct iw_freq"
690 * definition for an explanation of this if
691 * NOTE: 1000000 is due to the kHz
693 if (dsconfig > 1000000) {
694 freq->m = dsconfig / 10;
699 /* convert from kHz to Hz */
704 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
706 if (freq->m < 1000 && freq->e == 0) {
707 if (freq->m >= 1 && freq->m <= 14)
708 *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
714 for (i = freq->e; i > 0; i--)
727 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
729 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
734 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
741 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
743 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
744 tmp[le32_to_cpu(ssid->length)] = 0;
745 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
752 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
754 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
757 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
759 memcpy(&priv->essid, ssid, sizeof(priv->essid));
761 devdbg(usbdev, "set_essid: radio_on = 1");
768 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
773 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
776 memset(bssid, 0, ETH_ALEN);
781 static int get_association_info(struct usbnet *usbdev,
782 struct ndis_80211_assoc_info *info, int len)
784 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
788 static int is_associated(struct usbnet *usbdev)
793 ret = get_bssid(usbdev, bssid);
795 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
799 static int disassociate(struct usbnet *usbdev, int reset_ssid)
801 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
802 struct ndis_80211_ssid ssid;
805 if (priv->radio_on) {
806 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
809 devdbg(usbdev, "disassociate: radio_on = 0");
816 /* disassociate causes radio to be turned off; if reset_ssid
817 * is given, set random ssid to enable radio */
819 ssid.length = cpu_to_le32(sizeof(ssid.essid));
820 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
822 ssid.essid[1] = 0xff;
823 for (i = 2; i < sizeof(ssid.essid); i++)
824 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
825 ret = set_essid(usbdev, &ssid);
831 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
833 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
837 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
838 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
840 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
841 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
842 auth_mode = NDIS_80211_AUTH_WPA2;
844 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
845 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
846 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
847 auth_mode = NDIS_80211_AUTH_WPA;
848 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
849 auth_mode = NDIS_80211_AUTH_WPA_PSK;
851 auth_mode = NDIS_80211_AUTH_WPA_NONE;
852 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
853 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
854 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
856 auth_mode = NDIS_80211_AUTH_SHARED;
858 auth_mode = NDIS_80211_AUTH_OPEN;
860 tmp = cpu_to_le32(auth_mode);
861 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
864 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
868 priv->wpa_version = wpa_version;
869 priv->wpa_authalg = authalg;
874 static int set_priv_filter(struct usbnet *usbdev)
876 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
879 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
881 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
882 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
883 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
885 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
887 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
892 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
894 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
898 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
902 if (pairwise & IW_AUTH_CIPHER_CCMP)
903 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
904 else if (pairwise & IW_AUTH_CIPHER_TKIP)
905 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
907 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
908 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
909 else if (groupwise & IW_AUTH_CIPHER_CCMP)
910 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
911 else if (groupwise & IW_AUTH_CIPHER_TKIP)
912 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
914 encr_mode = NDIS_80211_ENCR_DISABLED;
916 tmp = cpu_to_le32(encr_mode);
917 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
920 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
924 priv->wpa_cipher_pair = pairwise;
925 priv->wpa_cipher_group = groupwise;
930 static int set_assoc_params(struct usbnet *usbdev)
932 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
934 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
935 set_priv_filter(usbdev);
936 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
942 static int set_infra_mode(struct usbnet *usbdev, int mode)
944 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
948 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
950 tmp = cpu_to_le32(mode);
951 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
954 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
958 /* NDIS drivers clear keys when infrastructure mode is
959 * changed. But Linux tools assume otherwise. So set the
961 if (priv->wpa_keymgmt == 0 ||
962 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
963 for (i = 0; i < 4; i++) {
964 if (priv->encr_key_len[i] > 0 && !priv->encr_key_wpa[i])
965 add_wep_key(usbdev, priv->encr_keys[i],
966 priv->encr_key_len[i], i);
970 priv->infra_mode = mode;
975 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
979 devdbg(usbdev, "set_rts_threshold %i", rts_threshold);
981 if (rts_threshold < 0 || rts_threshold > 2347)
982 rts_threshold = 2347;
984 tmp = cpu_to_le32(rts_threshold);
985 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
990 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
994 devdbg(usbdev, "set_frag_threshold %i", frag_threshold);
996 if (frag_threshold < 256 || frag_threshold > 2346)
997 frag_threshold = 2346;
999 tmp = cpu_to_le32(frag_threshold);
1000 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1005 static void set_default_iw_params(struct usbnet *usbdev)
1007 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1009 priv->wpa_keymgmt = 0;
1010 priv->wpa_version = 0;
1012 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1013 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1014 IW_AUTH_ALG_OPEN_SYSTEM);
1015 set_priv_filter(usbdev);
1016 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1020 static int deauthenticate(struct usbnet *usbdev)
1024 ret = disassociate(usbdev, 1);
1025 set_default_iw_params(usbdev);
1030 /* index must be 0 - N, as per NDIS */
1031 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
1033 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1034 struct ndis_80211_wep_key ndis_key;
1037 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
1040 memset(&ndis_key, 0, sizeof(ndis_key));
1042 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1043 ndis_key.length = cpu_to_le32(key_len);
1044 ndis_key.index = cpu_to_le32(index);
1045 memcpy(&ndis_key.material, key, key_len);
1047 if (index == priv->encr_tx_key_index) {
1048 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1049 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1050 IW_AUTH_CIPHER_NONE);
1052 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1056 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1059 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1064 priv->encr_key_len[index] = key_len;
1065 priv->encr_key_wpa[index] = 0;
1066 memcpy(&priv->encr_keys[index], key, key_len);
1072 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1073 int index, const struct sockaddr *addr,
1074 const u8 *rx_seq, int alg, int flags)
1076 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1077 struct ndis_80211_key ndis_key;
1080 if (index < 0 || index >= 4)
1082 if (key_len > sizeof(ndis_key.material) || key_len < 0)
1084 if ((flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) && !rx_seq)
1086 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !addr)
1089 devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1090 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1091 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1092 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1094 memset(&ndis_key, 0, sizeof(ndis_key));
1096 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1097 sizeof(ndis_key.material) + key_len);
1098 ndis_key.length = cpu_to_le32(key_len);
1099 ndis_key.index = cpu_to_le32(index) | flags;
1101 if (alg == IW_ENCODE_ALG_TKIP && key_len == 32) {
1102 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1103 * different order than NDIS spec, so swap the order here. */
1104 memcpy(ndis_key.material, key, 16);
1105 memcpy(ndis_key.material + 16, key + 24, 8);
1106 memcpy(ndis_key.material + 24, key + 16, 8);
1108 memcpy(ndis_key.material, key, key_len);
1110 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1111 memcpy(ndis_key.rsc, rx_seq, 6);
1113 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1115 memcpy(ndis_key.bssid, addr->sa_data, ETH_ALEN);
1118 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1119 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1121 get_bssid(usbdev, ndis_key.bssid);
1124 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1125 le32_to_cpu(ndis_key.size));
1126 devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1130 priv->encr_key_len[index] = key_len;
1131 priv->encr_key_wpa[index] = 1;
1133 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1134 priv->encr_tx_key_index = index;
1140 /* remove_key is for both wep and wpa */
1141 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1143 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1144 struct ndis_80211_remove_key remove_key;
1148 if (priv->encr_key_len[index] == 0)
1151 priv->encr_key_len[index] = 0;
1152 priv->encr_key_wpa[index] = 0;
1153 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1155 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
1156 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
1157 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
1158 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
1159 remove_key.size = cpu_to_le32(sizeof(remove_key));
1160 remove_key.index = cpu_to_le32(index);
1163 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
1165 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1166 memcpy(remove_key.bssid, bssid,
1167 sizeof(remove_key.bssid));
1169 memset(remove_key.bssid, 0xff,
1170 sizeof(remove_key.bssid));
1172 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1173 sizeof(remove_key));
1177 keyindex = cpu_to_le32(index);
1178 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1182 "removing encryption key %d failed (%08X)",
1188 /* if it is transmit key, disable encryption */
1189 if (index == priv->encr_tx_key_index)
1190 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1196 static void set_multicast_list(struct usbnet *usbdev)
1198 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1199 struct dev_mc_list *mclist;
1204 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1206 if (usbdev->net->flags & IFF_PROMISC) {
1207 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1208 RNDIS_PACKET_TYPE_ALL_LOCAL;
1209 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1210 usbdev->net->mc_count > priv->multicast_size) {
1211 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1212 } else if (usbdev->net->mc_count > 0) {
1213 size = min(priv->multicast_size, usbdev->net->mc_count);
1214 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1217 "couldn't alloc %d bytes of memory",
1222 mclist = usbdev->net->mc_list;
1223 for (i = 0; i < size && mclist; mclist = mclist->next) {
1224 if (mclist->dmi_addrlen != ETH_ALEN)
1227 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1231 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1233 if (ret == 0 && i > 0)
1234 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1236 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1238 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1239 i, priv->multicast_size, ret);
1244 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1247 devwarn(usbdev, "couldn't set packet filter: %08x",
1248 le32_to_cpu(filter));
1251 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1252 le32_to_cpu(filter), ret);
1259 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1260 struct net_device *dev,
1261 enum nl80211_iftype type, u32 *flags,
1262 struct vif_params *params)
1264 struct usbnet *usbdev = netdev_priv(dev);
1268 case NL80211_IFTYPE_ADHOC:
1269 mode = NDIS_80211_INFRA_ADHOC;
1271 case NL80211_IFTYPE_STATION:
1272 mode = NDIS_80211_INFRA_INFRA;
1278 return set_infra_mode(usbdev, mode);
1282 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1284 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1285 struct usbnet *usbdev = priv->usbdev;
1288 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1289 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1294 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1295 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1304 #define SCAN_DELAY_JIFFIES (HZ)
1305 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1306 struct cfg80211_scan_request *request)
1308 struct usbnet *usbdev = netdev_priv(dev);
1309 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1313 devdbg(usbdev, "cfg80211.scan");
1318 if (priv->scan_request && priv->scan_request != request)
1321 priv->scan_request = request;
1323 tmp = cpu_to_le32(1);
1324 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1327 /* Wait before retrieving scan results from device */
1328 queue_delayed_work(priv->workqueue, &priv->scan_work,
1329 SCAN_DELAY_JIFFIES);
1336 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1337 struct ndis_80211_bssid_ex *bssid)
1339 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1340 struct ieee80211_channel *channel;
1344 u16 beacon_interval;
1345 struct ndis_80211_fixed_ies *fixed;
1346 int ie_len, bssid_len;
1349 /* parse bssid structure */
1350 bssid_len = le32_to_cpu(bssid->length);
1352 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1353 sizeof(struct ndis_80211_fixed_ies))
1356 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1358 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1359 ie_len = min(bssid_len - (int)sizeof(*bssid),
1360 (int)le32_to_cpu(bssid->ie_length));
1361 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1365 /* extract data for cfg80211_inform_bss */
1366 channel = ieee80211_get_channel(priv->wdev.wiphy,
1367 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1371 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1372 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1373 capability = le16_to_cpu(fixed->capabilities);
1374 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1376 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1377 timestamp, capability, beacon_interval, ie, ie_len, signal,
1382 static int rndis_check_bssid_list(struct usbnet *usbdev)
1385 struct ndis_80211_bssid_list_ex *bssid_list;
1386 struct ndis_80211_bssid_ex *bssid;
1387 int ret = -EINVAL, len, count, bssid_len;
1389 devdbg(usbdev, "check_bssid_list");
1391 len = CONTROL_BUFFER_SIZE;
1392 buf = kmalloc(len, GFP_KERNEL);
1398 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1403 bssid = bssid_list->bssid;
1404 bssid_len = le32_to_cpu(bssid->length);
1405 count = le32_to_cpu(bssid_list->num_items);
1406 devdbg(usbdev, "check_bssid_list: %d BSSIDs found", count);
1408 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1409 rndis_bss_info_update(usbdev, bssid);
1411 bssid = (void *)bssid + bssid_len;
1412 bssid_len = le32_to_cpu(bssid->length);
1422 static void rndis_get_scan_results(struct work_struct *work)
1424 struct rndis_wlan_private *priv =
1425 container_of(work, struct rndis_wlan_private, scan_work.work);
1426 struct usbnet *usbdev = priv->usbdev;
1429 devdbg(usbdev, "get_scan_results");
1431 ret = rndis_check_bssid_list(usbdev);
1433 cfg80211_scan_done(priv->scan_request, ret < 0);
1435 priv->scan_request = NULL;
1440 * wireless extension handlers
1443 static int rndis_iw_commit(struct net_device *dev,
1444 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1451 static int rndis_iw_set_essid(struct net_device *dev,
1452 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1454 struct ndis_80211_ssid ssid;
1455 int length = wrqu->essid.length;
1456 struct usbnet *usbdev = netdev_priv(dev);
1458 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1459 wrqu->essid.flags, wrqu->essid.length, essid);
1461 if (length > NDIS_802_11_LENGTH_SSID)
1462 length = NDIS_802_11_LENGTH_SSID;
1464 ssid.length = cpu_to_le32(length);
1466 memcpy(ssid.essid, essid, length);
1468 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1470 set_assoc_params(usbdev);
1472 if (!wrqu->essid.flags || length == 0)
1473 return disassociate(usbdev, 1);
1475 return set_essid(usbdev, &ssid);
1479 static int rndis_iw_get_essid(struct net_device *dev,
1480 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1482 struct ndis_80211_ssid ssid;
1483 struct usbnet *usbdev = netdev_priv(dev);
1486 ret = get_essid(usbdev, &ssid);
1488 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1489 wrqu->essid.flags = 1;
1490 wrqu->essid.length = le32_to_cpu(ssid.length);
1491 memcpy(essid, ssid.essid, wrqu->essid.length);
1492 essid[wrqu->essid.length] = 0;
1494 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1495 wrqu->essid.flags = 0;
1496 wrqu->essid.length = 0;
1498 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1503 static int rndis_iw_get_bssid(struct net_device *dev,
1504 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1506 struct usbnet *usbdev = netdev_priv(dev);
1507 unsigned char bssid[ETH_ALEN];
1510 ret = get_bssid(usbdev, bssid);
1513 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1515 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1517 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1518 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1524 static int rndis_iw_set_bssid(struct net_device *dev,
1525 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1527 struct usbnet *usbdev = netdev_priv(dev);
1528 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1531 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1533 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1535 /* user apps may set ap's mac address, which is not required;
1536 * they may fail to work if this function fails, so return
1539 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1545 static int rndis_iw_set_auth(struct net_device *dev,
1546 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1548 struct iw_param *p = &wrqu->param;
1549 struct usbnet *usbdev = netdev_priv(dev);
1550 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1551 int ret = -ENOTSUPP;
1553 switch (p->flags & IW_AUTH_INDEX) {
1554 case IW_AUTH_WPA_VERSION:
1555 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1556 priv->wpa_version = p->value;
1560 case IW_AUTH_CIPHER_PAIRWISE:
1561 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1562 priv->wpa_cipher_pair = p->value;
1566 case IW_AUTH_CIPHER_GROUP:
1567 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1568 priv->wpa_cipher_group = p->value;
1572 case IW_AUTH_KEY_MGMT:
1573 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1574 priv->wpa_keymgmt = p->value;
1578 case IW_AUTH_TKIP_COUNTERMEASURES:
1579 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1584 case IW_AUTH_DROP_UNENCRYPTED:
1585 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1589 case IW_AUTH_80211_AUTH_ALG:
1590 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1591 priv->wpa_authalg = p->value;
1595 case IW_AUTH_WPA_ENABLED:
1596 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1597 if (wrqu->param.value)
1598 deauthenticate(usbdev);
1602 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1603 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1608 case IW_AUTH_ROAMING_CONTROL:
1609 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1613 case IW_AUTH_PRIVACY_INVOKED:
1614 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1615 wrqu->param.flags & IW_AUTH_INDEX);
1619 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1620 p->flags & IW_AUTH_INDEX, p->value);
1626 static int rndis_iw_get_auth(struct net_device *dev,
1627 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1629 struct iw_param *p = &wrqu->param;
1630 struct usbnet *usbdev = netdev_priv(dev);
1631 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1633 switch (p->flags & IW_AUTH_INDEX) {
1634 case IW_AUTH_WPA_VERSION:
1635 p->value = priv->wpa_version;
1637 case IW_AUTH_CIPHER_PAIRWISE:
1638 p->value = priv->wpa_cipher_pair;
1640 case IW_AUTH_CIPHER_GROUP:
1641 p->value = priv->wpa_cipher_group;
1643 case IW_AUTH_KEY_MGMT:
1644 p->value = priv->wpa_keymgmt;
1646 case IW_AUTH_80211_AUTH_ALG:
1647 p->value = priv->wpa_authalg;
1650 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1651 wrqu->param.flags & IW_AUTH_INDEX);
1658 static int rndis_iw_set_encode(struct net_device *dev,
1659 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1661 struct usbnet *usbdev = netdev_priv(dev);
1662 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1663 int ret, index, key_len;
1666 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1668 /* iwconfig gives index as 1 - N */
1672 index = priv->encr_tx_key_index;
1674 if (index < 0 || index >= 4) {
1675 devwarn(usbdev, "encryption index out of range (%u)", index);
1679 /* remove key if disabled */
1680 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1681 if (remove_key(usbdev, index, NULL))
1687 /* global encryption state (for all keys) */
1688 if (wrqu->data.flags & IW_ENCODE_OPEN)
1689 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1690 IW_AUTH_ALG_OPEN_SYSTEM);
1691 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1692 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1693 IW_AUTH_ALG_SHARED_KEY);
1697 if (wrqu->data.length > 0) {
1698 key_len = wrqu->data.length;
1701 /* must be set as tx key */
1702 if (priv->encr_key_len[index] == 0)
1704 key_len = priv->encr_key_len[index];
1705 key = priv->encr_keys[index];
1706 priv->encr_tx_key_index = index;
1709 if (add_wep_key(usbdev, key, key_len, index) != 0)
1712 if (index == priv->encr_tx_key_index)
1713 /* ndis drivers want essid to be set after setting encr */
1714 set_essid(usbdev, &priv->essid);
1720 static int rndis_iw_set_encode_ext(struct net_device *dev,
1721 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1723 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1724 struct usbnet *usbdev = netdev_priv(dev);
1725 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1728 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1730 /* iwconfig gives index as 1 - N */
1734 keyidx = priv->encr_tx_key_index;
1736 if (keyidx < 0 || keyidx >= 4)
1739 if (ext->alg == WPA_ALG_WEP) {
1740 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1741 priv->encr_tx_key_index = keyidx;
1742 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1745 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1746 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1747 return remove_key(usbdev, keyidx, NULL);
1750 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID)
1751 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
1752 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY))
1753 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY;
1754 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1755 flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY;
1757 return add_wpa_key(usbdev, ext->key, ext->key_len, keyidx, &ext->addr,
1758 ext->rx_seq, ext->alg, flags);
1762 static int rndis_iw_set_genie(struct net_device *dev,
1763 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1765 struct usbnet *usbdev = netdev_priv(dev);
1766 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1772 for (j = 0; j < wrqu->data.length; j += 8)
1774 "SIOCSIWGENIE %04x - "
1775 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1776 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1777 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1779 /* clear existing IEs */
1780 if (priv->wpa_ie_len) {
1781 kfree(priv->wpa_ie);
1782 priv->wpa_ie_len = 0;
1786 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1788 priv->wpa_ie_len = wrqu->data.length;
1789 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1796 static int rndis_iw_get_genie(struct net_device *dev,
1797 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1799 struct usbnet *usbdev = netdev_priv(dev);
1800 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1802 devdbg(usbdev, "SIOCGIWGENIE");
1804 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1805 wrqu->data.length = 0;
1809 if (wrqu->data.length < priv->wpa_ie_len)
1812 wrqu->data.length = priv->wpa_ie_len;
1813 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1819 static int rndis_iw_set_freq(struct net_device *dev,
1820 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1822 struct usbnet *usbdev = netdev_priv(dev);
1823 struct ndis_80211_conf config;
1824 unsigned int dsconfig;
1827 /* this OID is valid only when not associated */
1828 if (is_associated(usbdev))
1832 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
1835 len = sizeof(config);
1836 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1838 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
1842 config.ds_config = cpu_to_le32(dsconfig);
1844 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
1845 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1850 static int rndis_iw_get_freq(struct net_device *dev,
1851 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1853 struct usbnet *usbdev = netdev_priv(dev);
1854 struct ndis_80211_conf config;
1857 len = sizeof(config);
1858 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1860 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
1862 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
1867 static int rndis_iw_get_txpower(struct net_device *dev,
1868 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1870 struct usbnet *usbdev = netdev_priv(dev);
1871 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1874 if (priv->radio_on) {
1875 /* fake since changing tx_power (by userlevel) not supported */
1876 tx_power = cpu_to_le32(get_bcm4320_power(priv));
1878 wrqu->txpower.flags = IW_TXPOW_MWATT;
1879 wrqu->txpower.value = le32_to_cpu(tx_power);
1880 wrqu->txpower.disabled = 0;
1882 wrqu->txpower.flags = IW_TXPOW_MWATT;
1883 wrqu->txpower.value = 0;
1884 wrqu->txpower.disabled = 1;
1887 devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
1893 static int rndis_iw_set_txpower(struct net_device *dev,
1894 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1896 struct usbnet *usbdev = netdev_priv(dev);
1897 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1898 __le32 tx_power = 0;
1900 if (!wrqu->txpower.disabled) {
1901 if (wrqu->txpower.flags == IW_TXPOW_MWATT)
1902 tx_power = cpu_to_le32(wrqu->txpower.value);
1903 else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
1904 if (wrqu->txpower.value > 20)
1905 tx_power = cpu_to_le32(128);
1906 else if (wrqu->txpower.value < -43)
1907 tx_power = cpu_to_le32(127);
1910 tmp = wrqu->txpower.value;
1913 tx_power = cpu_to_le32((unsigned char)tmp);
1918 devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
1920 if (le32_to_cpu(tx_power) != 0) {
1921 /* txpower unsupported, just turn radio on */
1922 if (!priv->radio_on)
1923 return disassociate(usbdev, 1);
1924 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_wlan_private *priv = get_rndis_wlan_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_wlan_private *priv = get_rndis_wlan_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) = (iw_handler) cfg80211_wext_siwrts,
2008 IW_IOCTL(SIOCGIWRTS) = (iw_handler) cfg80211_wext_giwrts,
2009 IW_IOCTL(SIOCSIWFRAG) = (iw_handler) cfg80211_wext_siwfrag,
2010 IW_IOCTL(SIOCGIWFRAG) = (iw_handler) cfg80211_wext_giwfrag,
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_wlan_private_handler[] = {
2025 static const struct iw_priv_args rndis_wlan_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_wlan_private_handler),
2032 .num_private_args = ARRAY_SIZE(rndis_wlan_private_args),
2033 .standard = (iw_handler *)rndis_iw_handler,
2034 .private = (iw_handler *)rndis_wlan_private_handler,
2035 .private_args = (struct iw_priv_args *)rndis_wlan_private_args,
2036 .get_wireless_stats = rndis_get_wireless_stats,
2040 static void rndis_wlan_worker(struct work_struct *work)
2042 struct rndis_wlan_private *priv =
2043 container_of(work, struct rndis_wlan_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_wlan_set_multicast_list(struct net_device *dev)
2106 struct usbnet *usbdev = netdev_priv(dev);
2107 struct rndis_wlan_private *priv = get_rndis_wlan_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_wlan_link_change(struct usbnet *usbdev, int state)
2118 struct rndis_wlan_private *priv = get_rndis_wlan_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_wlan_get_caps(struct usbnet *usbdev)
2131 } networks_supported;
2132 int len, retval, i, n;
2133 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2135 /* determine supported modes */
2136 len = sizeof(networks_supported);
2137 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2138 &networks_supported, &len);
2140 n = le32_to_cpu(networks_supported.num_items);
2143 for (i = 0; i < n; i++) {
2144 switch (le32_to_cpu(networks_supported.items[i])) {
2145 case NDIS_80211_TYPE_FREQ_HOP:
2146 case NDIS_80211_TYPE_DIRECT_SEQ:
2147 priv->caps |= CAP_MODE_80211B;
2149 case NDIS_80211_TYPE_OFDM_A:
2150 priv->caps |= CAP_MODE_80211A;
2152 case NDIS_80211_TYPE_OFDM_G:
2153 priv->caps |= CAP_MODE_80211G;
2163 #define STATS_UPDATE_JIFFIES (HZ)
2164 static void rndis_update_wireless_stats(struct work_struct *work)
2166 struct rndis_wlan_private *priv =
2167 container_of(work, struct rndis_wlan_private, stats_work.work);
2168 struct usbnet *usbdev = priv->usbdev;
2169 struct iw_statistics iwstats;
2172 unsigned long flags;
2173 int update_jiffies = STATS_UPDATE_JIFFIES;
2176 spin_lock_irqsave(&priv->stats_lock, flags);
2177 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2178 spin_unlock_irqrestore(&priv->stats_lock, flags);
2180 /* only update stats when connected */
2181 if (!is_associated(usbdev)) {
2182 iwstats.qual.qual = 0;
2183 iwstats.qual.level = 0;
2184 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2185 | IW_QUAL_LEVEL_UPDATED
2186 | IW_QUAL_NOISE_INVALID
2187 | IW_QUAL_QUAL_INVALID
2188 | IW_QUAL_LEVEL_INVALID;
2193 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2195 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2198 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2199 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2200 iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
2201 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2202 | IW_QUAL_LEVEL_UPDATED
2203 | IW_QUAL_NOISE_INVALID;
2206 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2209 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2211 iwstats.discard.misc += le32_to_cpu(tmp);
2214 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2216 iwstats.discard.misc += le32_to_cpu(tmp);
2219 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2221 iwstats.discard.misc += le32_to_cpu(tmp);
2223 /* Workaround transfer stalls on poor quality links.
2224 * TODO: find right way to fix these stalls (as stalls do not happen
2225 * with ndiswrapper/windows driver). */
2226 if (iwstats.qual.qual <= 25) {
2227 /* Decrease stats worker interval to catch stalls.
2228 * faster. Faster than 400-500ms causes packet loss,
2229 * Slower doesn't catch stalls fast enough.
2231 j = msecs_to_jiffies(priv->param_workaround_interval);
2232 if (j > STATS_UPDATE_JIFFIES)
2233 j = STATS_UPDATE_JIFFIES;
2238 /* Send scan OID. Use of both OIDs is required to get device
2241 tmp = cpu_to_le32(1);
2242 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2245 len = CONTROL_BUFFER_SIZE;
2246 buf = kmalloc(len, GFP_KERNEL);
2250 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2254 spin_lock_irqsave(&priv->stats_lock, flags);
2255 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2256 spin_unlock_irqrestore(&priv->stats_lock, flags);
2258 if (update_jiffies >= HZ)
2259 update_jiffies = round_jiffies_relative(update_jiffies);
2261 j = round_jiffies_relative(update_jiffies);
2262 if (abs(j - update_jiffies) <= 10)
2266 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2270 static int bcm4320a_early_init(struct usbnet *usbdev)
2272 /* bcm4320a doesn't handle configuration parameters well. Try
2273 * set any and you get partially zeroed mac and broken device.
2280 static int bcm4320b_early_init(struct usbnet *usbdev)
2282 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2285 /* Early initialization settings, setting these won't have effect
2286 * if called after generic_rndis_bind().
2289 priv->param_country[0] = modparam_country[0];
2290 priv->param_country[1] = modparam_country[1];
2291 priv->param_country[2] = 0;
2292 priv->param_frameburst = modparam_frameburst;
2293 priv->param_afterburner = modparam_afterburner;
2294 priv->param_power_save = modparam_power_save;
2295 priv->param_power_output = modparam_power_output;
2296 priv->param_roamtrigger = modparam_roamtrigger;
2297 priv->param_roamdelta = modparam_roamdelta;
2299 priv->param_country[0] = toupper(priv->param_country[0]);
2300 priv->param_country[1] = toupper(priv->param_country[1]);
2301 /* doesn't support EU as country code, use FI instead */
2302 if (!strcmp(priv->param_country, "EU"))
2303 strcpy(priv->param_country, "FI");
2305 if (priv->param_power_save < 0)
2306 priv->param_power_save = 0;
2307 else if (priv->param_power_save > 2)
2308 priv->param_power_save = 2;
2310 if (priv->param_power_output < 0)
2311 priv->param_power_output = 0;
2312 else if (priv->param_power_output > 3)
2313 priv->param_power_output = 3;
2315 if (priv->param_roamtrigger < -80)
2316 priv->param_roamtrigger = -80;
2317 else if (priv->param_roamtrigger > -60)
2318 priv->param_roamtrigger = -60;
2320 if (priv->param_roamdelta < 0)
2321 priv->param_roamdelta = 0;
2322 else if (priv->param_roamdelta > 2)
2323 priv->param_roamdelta = 2;
2325 if (modparam_workaround_interval < 0)
2326 priv->param_workaround_interval = 500;
2328 priv->param_workaround_interval = modparam_workaround_interval;
2330 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2331 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2332 priv->param_frameburst ? "1" : "0");
2333 rndis_set_config_parameter_str(usbdev, "Afterburner",
2334 priv->param_afterburner ? "1" : "0");
2335 sprintf(buf, "%d", priv->param_power_save);
2336 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2337 sprintf(buf, "%d", priv->param_power_output);
2338 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2339 sprintf(buf, "%d", priv->param_roamtrigger);
2340 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2341 sprintf(buf, "%d", priv->param_roamdelta);
2342 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2347 /* same as rndis_netdev_ops but with local multicast handler */
2348 static const struct net_device_ops rndis_wlan_netdev_ops = {
2349 .ndo_open = usbnet_open,
2350 .ndo_stop = usbnet_stop,
2351 .ndo_start_xmit = usbnet_start_xmit,
2352 .ndo_tx_timeout = usbnet_tx_timeout,
2353 .ndo_set_mac_address = eth_mac_addr,
2354 .ndo_validate_addr = eth_validate_addr,
2355 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
2359 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
2361 struct wiphy *wiphy;
2362 struct rndis_wlan_private *priv;
2366 /* allocate wiphy and rndis private data
2367 * NOTE: We only support a single virtual interface, so wiphy
2368 * and wireless_dev are somewhat synonymous for this device.
2370 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
2374 priv = wiphy_priv(wiphy);
2375 usbdev->net->ieee80211_ptr = &priv->wdev;
2376 priv->wdev.wiphy = wiphy;
2377 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2379 /* These have to be initialized before calling generic_rndis_bind().
2380 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
2382 usbdev->driver_priv = priv;
2383 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2384 priv->usbdev = usbdev;
2386 mutex_init(&priv->command_lock);
2387 spin_lock_init(&priv->stats_lock);
2389 /* because rndis_command() sleeps we need to use workqueue */
2390 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2391 INIT_WORK(&priv->work, rndis_wlan_worker);
2392 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2393 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2395 /* try bind rndis_host */
2396 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2400 /* generic_rndis_bind set packet filter to multicast_all+
2401 * promisc mode which doesn't work well for our devices (device
2402 * picks up rssi to closest station instead of to access point).
2404 * rndis_host wants to avoid all OID as much as possible
2405 * so do promisc/multicast handling in rndis_wlan.
2407 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
2409 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2410 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2414 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2416 priv->multicast_size = le32_to_cpu(tmp);
2417 if (retval < 0 || priv->multicast_size < 0)
2418 priv->multicast_size = 0;
2419 if (priv->multicast_size > 0)
2420 usbdev->net->flags |= IFF_MULTICAST;
2422 usbdev->net->flags &= ~IFF_MULTICAST;
2424 priv->iwstats.qual.qual = 0;
2425 priv->iwstats.qual.level = 0;
2426 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2427 | IW_QUAL_LEVEL_UPDATED
2428 | IW_QUAL_NOISE_INVALID
2429 | IW_QUAL_QUAL_INVALID
2430 | IW_QUAL_LEVEL_INVALID;
2432 /* fill-out wiphy structure and register w/ cfg80211 */
2433 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2434 wiphy->privid = rndis_wiphy_privid;
2435 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2436 | BIT(NL80211_IFTYPE_ADHOC);
2437 wiphy->max_scan_ssids = 1;
2439 /* TODO: fill-out band information based on priv->caps */
2440 rndis_wlan_get_caps(usbdev);
2442 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2443 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2444 priv->band.channels = priv->channels;
2445 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2446 priv->band.bitrates = priv->rates;
2447 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2448 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2449 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2451 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2453 if (wiphy_register(wiphy)) {
2458 set_default_iw_params(usbdev);
2460 /* set default rts/frag */
2461 rndis_set_wiphy_params(wiphy,
2462 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
2466 disassociate(usbdev, 1);
2467 netif_carrier_off(usbdev->net);
2469 queue_delayed_work(priv->workqueue, &priv->stats_work,
2470 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2475 cancel_delayed_work_sync(&priv->stats_work);
2476 cancel_delayed_work_sync(&priv->scan_work);
2477 cancel_work_sync(&priv->work);
2478 flush_workqueue(priv->workqueue);
2479 destroy_workqueue(priv->workqueue);
2486 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2488 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2490 /* turn radio off */
2491 disassociate(usbdev, 0);
2493 cancel_delayed_work_sync(&priv->stats_work);
2494 cancel_delayed_work_sync(&priv->scan_work);
2495 cancel_work_sync(&priv->work);
2496 flush_workqueue(priv->workqueue);
2497 destroy_workqueue(priv->workqueue);
2499 if (priv && priv->wpa_ie_len)
2500 kfree(priv->wpa_ie);
2502 rndis_unbind(usbdev, intf);
2504 wiphy_unregister(priv->wdev.wiphy);
2505 wiphy_free(priv->wdev.wiphy);
2509 static int rndis_wlan_reset(struct usbnet *usbdev)
2511 return deauthenticate(usbdev);
2515 static const struct driver_info bcm4320b_info = {
2516 .description = "Wireless RNDIS device, BCM4320b based",
2517 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2518 .bind = rndis_wlan_bind,
2519 .unbind = rndis_wlan_unbind,
2520 .status = rndis_status,
2521 .rx_fixup = rndis_rx_fixup,
2522 .tx_fixup = rndis_tx_fixup,
2523 .reset = rndis_wlan_reset,
2524 .early_init = bcm4320b_early_init,
2525 .link_change = rndis_wlan_link_change,
2528 static const struct driver_info bcm4320a_info = {
2529 .description = "Wireless RNDIS device, BCM4320a based",
2530 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2531 .bind = rndis_wlan_bind,
2532 .unbind = rndis_wlan_unbind,
2533 .status = rndis_status,
2534 .rx_fixup = rndis_rx_fixup,
2535 .tx_fixup = rndis_tx_fixup,
2536 .reset = rndis_wlan_reset,
2537 .early_init = bcm4320a_early_init,
2538 .link_change = rndis_wlan_link_change,
2541 static const struct driver_info rndis_wlan_info = {
2542 .description = "Wireless RNDIS device",
2543 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2544 .bind = rndis_wlan_bind,
2545 .unbind = rndis_wlan_unbind,
2546 .status = rndis_status,
2547 .rx_fixup = rndis_rx_fixup,
2548 .tx_fixup = rndis_tx_fixup,
2549 .reset = rndis_wlan_reset,
2550 .early_init = bcm4320a_early_init,
2551 .link_change = rndis_wlan_link_change,
2554 /*-------------------------------------------------------------------------*/
2556 static const struct usb_device_id products [] = {
2557 #define RNDIS_MASTER_INTERFACE \
2558 .bInterfaceClass = USB_CLASS_COMM, \
2559 .bInterfaceSubClass = 2 /* ACM */, \
2560 .bInterfaceProtocol = 0x0ff
2562 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2563 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2566 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2567 | USB_DEVICE_ID_MATCH_DEVICE,
2569 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
2570 RNDIS_MASTER_INTERFACE,
2571 .driver_info = (unsigned long) &bcm4320b_info,
2573 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2574 | USB_DEVICE_ID_MATCH_DEVICE,
2576 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
2577 RNDIS_MASTER_INTERFACE,
2578 .driver_info = (unsigned long) &bcm4320b_info,
2580 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2581 | USB_DEVICE_ID_MATCH_DEVICE,
2583 .idProduct = 0x011b, /* Belkin F5D7051 */
2584 RNDIS_MASTER_INTERFACE,
2585 .driver_info = (unsigned long) &bcm4320b_info,
2587 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2588 | USB_DEVICE_ID_MATCH_DEVICE,
2589 .idVendor = 0x1799, /* Belkin has two vendor ids */
2590 .idProduct = 0x011b, /* Belkin F5D7051 */
2591 RNDIS_MASTER_INTERFACE,
2592 .driver_info = (unsigned long) &bcm4320b_info,
2594 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2595 | USB_DEVICE_ID_MATCH_DEVICE,
2597 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
2598 RNDIS_MASTER_INTERFACE,
2599 .driver_info = (unsigned long) &bcm4320b_info,
2601 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2602 | USB_DEVICE_ID_MATCH_DEVICE,
2604 .idProduct = 0x0026, /* Linksys WUSB54GSC */
2605 RNDIS_MASTER_INTERFACE,
2606 .driver_info = (unsigned long) &bcm4320b_info,
2608 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2609 | USB_DEVICE_ID_MATCH_DEVICE,
2611 .idProduct = 0x1717, /* Asus WL169gE */
2612 RNDIS_MASTER_INTERFACE,
2613 .driver_info = (unsigned long) &bcm4320b_info,
2615 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2616 | USB_DEVICE_ID_MATCH_DEVICE,
2618 .idProduct = 0xd11b, /* Eminent EM4045 */
2619 RNDIS_MASTER_INTERFACE,
2620 .driver_info = (unsigned long) &bcm4320b_info,
2622 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2623 | USB_DEVICE_ID_MATCH_DEVICE,
2625 .idProduct = 0x0715, /* BT Voyager 1055 */
2626 RNDIS_MASTER_INTERFACE,
2627 .driver_info = (unsigned long) &bcm4320b_info,
2629 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2630 * parameters available, hardware probably contain older firmware version with
2631 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2634 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2635 | USB_DEVICE_ID_MATCH_DEVICE,
2637 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2638 RNDIS_MASTER_INTERFACE,
2639 .driver_info = (unsigned long) &bcm4320a_info,
2641 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2642 | USB_DEVICE_ID_MATCH_DEVICE,
2644 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2645 RNDIS_MASTER_INTERFACE,
2646 .driver_info = (unsigned long) &bcm4320a_info,
2648 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2649 | USB_DEVICE_ID_MATCH_DEVICE,
2651 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2652 RNDIS_MASTER_INTERFACE,
2653 .driver_info = (unsigned long) &bcm4320a_info,
2655 /* Generic Wireless RNDIS devices that we don't have exact
2656 * idVendor/idProduct/chip yet.
2659 /* RNDIS is MSFT's un-official variant of CDC ACM */
2660 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2661 .driver_info = (unsigned long) &rndis_wlan_info,
2663 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2664 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2665 .driver_info = (unsigned long) &rndis_wlan_info,
2669 MODULE_DEVICE_TABLE(usb, products);
2671 static struct usb_driver rndis_wlan_driver = {
2672 .name = "rndis_wlan",
2673 .id_table = products,
2674 .probe = usbnet_probe,
2675 .disconnect = usbnet_disconnect,
2676 .suspend = usbnet_suspend,
2677 .resume = usbnet_resume,
2680 static int __init rndis_wlan_init(void)
2682 return usb_register(&rndis_wlan_driver);
2684 module_init(rndis_wlan_init);
2686 static void __exit rndis_wlan_exit(void)
2688 usb_deregister(&rndis_wlan_driver);
2690 module_exit(rndis_wlan_exit);
2692 MODULE_AUTHOR("Bjorge Dijkstra");
2693 MODULE_AUTHOR("Jussi Kivilinna");
2694 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2695 MODULE_LICENSE("GPL");