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];
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, int ifindex,
424 enum nl80211_iftype type, u32 *flags,
425 struct vif_params *params);
427 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
428 struct cfg80211_scan_request *request);
430 static struct cfg80211_ops rndis_config_ops = {
431 .change_virtual_intf = rndis_change_virtual_intf,
435 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
437 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
439 static const unsigned char zero_bssid[ETH_ALEN] = {0,};
440 static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
444 static struct rndis_wext_private *get_rndis_wext_priv(struct usbnet *dev)
446 return (struct rndis_wext_private *)dev->driver_priv;
450 static u32 get_bcm4320_power(struct rndis_wext_private *priv)
452 return BCM4320_DEFAULT_TXPOWER *
453 bcm4320_power_output[priv->param_power_output] / 100;
457 /* translate error code */
458 static int rndis_error_status(__le32 rndis_status)
461 switch (rndis_status) {
462 case RNDIS_STATUS_SUCCESS:
465 case RNDIS_STATUS_FAILURE:
466 case RNDIS_STATUS_INVALID_DATA:
469 case RNDIS_STATUS_NOT_SUPPORTED:
472 case RNDIS_STATUS_ADAPTER_NOT_READY:
473 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
481 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
483 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
486 struct rndis_msg_hdr *header;
487 struct rndis_query *get;
488 struct rndis_query_c *get_c;
492 buflen = *len + sizeof(*u.get);
493 if (buflen < CONTROL_BUFFER_SIZE)
494 buflen = CONTROL_BUFFER_SIZE;
496 if (buflen > COMMAND_BUFFER_SIZE) {
497 u.buf = kmalloc(buflen, GFP_KERNEL);
501 u.buf = priv->command_buffer;
504 mutex_lock(&priv->command_lock);
506 memset(u.get, 0, sizeof *u.get);
507 u.get->msg_type = RNDIS_MSG_QUERY;
508 u.get->msg_len = cpu_to_le32(sizeof *u.get);
511 ret = rndis_command(dev, u.header, buflen);
513 ret = le32_to_cpu(u.get_c->len);
514 *len = (*len > ret) ? ret : *len;
515 memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
516 ret = rndis_error_status(u.get_c->status);
519 mutex_unlock(&priv->command_lock);
521 if (u.buf != priv->command_buffer)
527 static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
529 struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
532 struct rndis_msg_hdr *header;
533 struct rndis_set *set;
534 struct rndis_set_c *set_c;
538 buflen = len + sizeof(*u.set);
539 if (buflen < CONTROL_BUFFER_SIZE)
540 buflen = CONTROL_BUFFER_SIZE;
542 if (buflen > COMMAND_BUFFER_SIZE) {
543 u.buf = kmalloc(buflen, GFP_KERNEL);
547 u.buf = priv->command_buffer;
550 mutex_lock(&priv->command_lock);
552 memset(u.set, 0, sizeof *u.set);
553 u.set->msg_type = RNDIS_MSG_SET;
554 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
556 u.set->len = cpu_to_le32(len);
557 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
558 u.set->handle = cpu_to_le32(0);
559 memcpy(u.buf + sizeof(*u.set), data, len);
561 ret = rndis_command(dev, u.header, buflen);
563 ret = rndis_error_status(u.set_c->status);
565 mutex_unlock(&priv->command_lock);
567 if (u.buf != priv->command_buffer)
574 * Specs say that we can only set config parameters only soon after device
576 * value_type: 0 = u32, 2 = unicode string
578 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
579 int value_type, void *value)
581 struct ndis_config_param *infobuf;
582 int value_len, info_len, param_len, ret, i;
587 value_len = sizeof(__le32);
588 else if (value_type == 2)
589 value_len = strlen(value) * sizeof(__le16);
593 param_len = strlen(param) * sizeof(__le16);
594 info_len = sizeof(*infobuf) + param_len + value_len;
599 infobuf = kmalloc(info_len, GFP_KERNEL);
605 /* extra 12 bytes are for padding (debug output) */
606 memset(infobuf, 0xCC, info_len + 12);
610 devdbg(dev, "setting config parameter: %s, value: %s",
613 devdbg(dev, "setting config parameter: %s, value: %d",
614 param, *(u32 *)value);
616 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
617 infobuf->name_length = cpu_to_le32(param_len);
618 infobuf->type = cpu_to_le32(value_type);
619 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
620 infobuf->value_length = cpu_to_le32(value_len);
622 /* simple string to unicode string conversion */
623 unibuf = (void *)infobuf + sizeof(*infobuf);
624 for (i = 0; i < param_len / sizeof(__le16); i++)
625 unibuf[i] = cpu_to_le16(param[i]);
627 if (value_type == 2) {
628 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
629 for (i = 0; i < value_len / sizeof(__le16); i++)
630 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
632 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
633 *dst_value = cpu_to_le32(*(u32 *)value);
637 devdbg(dev, "info buffer (len: %d):", info_len);
638 for (i = 0; i < info_len; i += 12) {
639 u32 *tmp = (u32 *)((u8 *)infobuf + i);
640 devdbg(dev, "%08X:%08X:%08X",
643 cpu_to_be32(tmp[2]));
647 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
650 devdbg(dev, "setting rndis config paramater failed, %d.", ret);
656 static int rndis_set_config_parameter_str(struct usbnet *dev,
657 char *param, char *value)
659 return(rndis_set_config_parameter(dev, param, 2, value));
662 /*static int rndis_set_config_parameter_u32(struct usbnet *dev,
663 char *param, u32 value)
665 return(rndis_set_config_parameter(dev, param, 0, &value));
670 * data conversion functions
672 static int level_to_qual(int level)
674 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
675 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
679 static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
685 /* see comment in wireless.h above the "struct iw_freq"
686 * definition for an explanation of this if
687 * NOTE: 1000000 is due to the kHz
689 if (dsconfig > 1000000) {
690 freq->m = dsconfig / 10;
695 /* convert from kHz to Hz */
700 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
702 if (freq->m < 1000 && freq->e == 0) {
703 if (freq->m >= 1 && freq->m <= 14)
704 *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
710 for (i = freq->e; i > 0; i--)
723 add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
725 static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
730 ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
737 unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
739 memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length));
740 tmp[le32_to_cpu(ssid->length)] = 0;
741 devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
748 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
750 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
753 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
755 memcpy(&priv->essid, ssid, sizeof(priv->essid));
757 devdbg(usbdev, "set_essid: radio_on = 1");
764 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
769 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
772 memset(bssid, 0, ETH_ALEN);
777 static int get_association_info(struct usbnet *usbdev,
778 struct ndis_80211_assoc_info *info, int len)
780 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
784 static int is_associated(struct usbnet *usbdev)
789 ret = get_bssid(usbdev, bssid);
791 return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
795 static int disassociate(struct usbnet *usbdev, int reset_ssid)
797 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
798 struct ndis_80211_ssid ssid;
801 if (priv->radio_on) {
802 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
805 devdbg(usbdev, "disassociate: radio_on = 0");
812 /* disassociate causes radio to be turned off; if reset_ssid
813 * is given, set random ssid to enable radio */
815 ssid.length = cpu_to_le32(sizeof(ssid.essid));
816 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
818 ssid.essid[1] = 0xff;
819 for (i = 2; i < sizeof(ssid.essid); i++)
820 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
821 ret = set_essid(usbdev, &ssid);
827 static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
829 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
833 devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
834 "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
836 if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
837 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
838 auth_mode = ndis_80211_auth_wpa2;
840 auth_mode = ndis_80211_auth_wpa2_psk;
841 } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
842 if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
843 auth_mode = ndis_80211_auth_wpa;
844 else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
845 auth_mode = ndis_80211_auth_wpa_psk;
847 auth_mode = ndis_80211_auth_wpa_none;
848 } else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
849 if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
850 auth_mode = ndis_80211_auth_auto_switch;
852 auth_mode = ndis_80211_auth_shared;
854 auth_mode = ndis_80211_auth_open;
856 tmp = cpu_to_le32(auth_mode);
857 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
860 devwarn(usbdev, "setting auth mode failed (%08X)", ret);
864 priv->wpa_version = wpa_version;
865 priv->wpa_authalg = authalg;
870 static int set_priv_filter(struct usbnet *usbdev)
872 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
875 devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
877 if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
878 priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
879 tmp = cpu_to_le32(ndis_80211_priv_8021x_wep);
881 tmp = cpu_to_le32(ndis_80211_priv_accept_all);
883 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
888 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
890 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
894 devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
898 if (pairwise & IW_AUTH_CIPHER_CCMP)
899 encr_mode = ndis_80211_encr_ccmp_enabled;
900 else if (pairwise & IW_AUTH_CIPHER_TKIP)
901 encr_mode = ndis_80211_encr_tkip_enabled;
903 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
904 encr_mode = ndis_80211_encr_wep_enabled;
905 else if (groupwise & IW_AUTH_CIPHER_CCMP)
906 encr_mode = ndis_80211_encr_ccmp_enabled;
907 else if (groupwise & IW_AUTH_CIPHER_TKIP)
908 encr_mode = ndis_80211_encr_tkip_enabled;
910 encr_mode = ndis_80211_encr_disabled;
912 tmp = cpu_to_le32(encr_mode);
913 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
916 devwarn(usbdev, "setting encr mode failed (%08X)", ret);
920 priv->wpa_cipher_pair = pairwise;
921 priv->wpa_cipher_group = groupwise;
926 static int set_assoc_params(struct usbnet *usbdev)
928 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
930 set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
931 set_priv_filter(usbdev);
932 set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
938 static int set_infra_mode(struct usbnet *usbdev, int mode)
940 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
944 devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
946 tmp = cpu_to_le32(mode);
947 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
950 devwarn(usbdev, "setting infra mode failed (%08X)", ret);
954 /* NDIS drivers clear keys when infrastructure mode is
955 * changed. But Linux tools assume otherwise. So set the
957 if (priv->wpa_keymgmt == 0 ||
958 priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
959 for (i = 0; i < 4; i++) {
960 if (priv->encr_key_len[i] > 0 && !priv->encr_key_wpa[i])
961 add_wep_key(usbdev, priv->encr_keys[i],
962 priv->encr_key_len[i], i);
966 priv->infra_mode = mode;
971 static void set_default_iw_params(struct usbnet *usbdev)
973 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
975 priv->wpa_keymgmt = 0;
976 priv->wpa_version = 0;
978 set_infra_mode(usbdev, ndis_80211_infra_infra);
979 set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
980 IW_AUTH_ALG_OPEN_SYSTEM);
981 set_priv_filter(usbdev);
982 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
986 static int deauthenticate(struct usbnet *usbdev)
990 ret = disassociate(usbdev, 1);
991 set_default_iw_params(usbdev);
996 /* index must be 0 - N, as per NDIS */
997 static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
999 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1000 struct ndis_80211_wep_key ndis_key;
1003 if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
1006 memset(&ndis_key, 0, sizeof(ndis_key));
1008 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1009 ndis_key.length = cpu_to_le32(key_len);
1010 ndis_key.index = cpu_to_le32(index);
1011 memcpy(&ndis_key.material, key, key_len);
1013 if (index == priv->encr_tx_key_index) {
1014 ndis_key.index |= ndis_80211_addwep_transmit_key;
1015 ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
1016 IW_AUTH_CIPHER_NONE);
1018 devwarn(usbdev, "encryption couldn't be enabled (%08X)",
1022 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1025 devwarn(usbdev, "adding encryption key %d failed (%08X)",
1030 priv->encr_key_len[index] = key_len;
1031 priv->encr_key_wpa[index] = 0;
1032 memcpy(&priv->encr_keys[index], key, key_len);
1038 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1039 int index, const struct sockaddr *addr,
1040 const u8 *rx_seq, int alg, int flags)
1042 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1043 struct ndis_80211_key ndis_key;
1046 if (index < 0 || index >= 4)
1048 if (key_len > sizeof(ndis_key.material) || key_len < 0)
1050 if ((flags & ndis_80211_addkey_set_init_recv_seq) && !rx_seq)
1052 if ((flags & ndis_80211_addkey_pairwise_key) && !addr)
1055 devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index,
1056 !!(flags & ndis_80211_addkey_transmit_key),
1057 !!(flags & ndis_80211_addkey_pairwise_key),
1058 !!(flags & ndis_80211_addkey_set_init_recv_seq));
1060 memset(&ndis_key, 0, sizeof(ndis_key));
1062 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1063 sizeof(ndis_key.material) + key_len);
1064 ndis_key.length = cpu_to_le32(key_len);
1065 ndis_key.index = cpu_to_le32(index) | flags;
1067 if (alg == IW_ENCODE_ALG_TKIP && key_len == 32) {
1068 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1069 * different order than NDIS spec, so swap the order here. */
1070 memcpy(ndis_key.material, key, 16);
1071 memcpy(ndis_key.material + 16, key + 24, 8);
1072 memcpy(ndis_key.material + 24, key + 16, 8);
1074 memcpy(ndis_key.material, key, key_len);
1076 if (flags & ndis_80211_addkey_set_init_recv_seq)
1077 memcpy(ndis_key.rsc, rx_seq, 6);
1079 if (flags & ndis_80211_addkey_pairwise_key) {
1081 memcpy(ndis_key.bssid, addr->sa_data, ETH_ALEN);
1084 if (priv->infra_mode == ndis_80211_infra_adhoc)
1085 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1087 get_bssid(usbdev, ndis_key.bssid);
1090 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1091 le32_to_cpu(ndis_key.size));
1092 devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret);
1096 priv->encr_key_len[index] = key_len;
1097 priv->encr_key_wpa[index] = 1;
1099 if (flags & ndis_80211_addkey_transmit_key)
1100 priv->encr_tx_key_index = index;
1106 /* remove_key is for both wep and wpa */
1107 static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
1109 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1110 struct ndis_80211_remove_key remove_key;
1114 if (priv->encr_key_len[index] == 0)
1117 priv->encr_key_len[index] = 0;
1118 priv->encr_key_wpa[index] = 0;
1119 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1121 if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
1122 priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
1123 priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
1124 priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
1125 remove_key.size = cpu_to_le32(sizeof(remove_key));
1126 remove_key.index = cpu_to_le32(index);
1129 if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
1131 ndis_80211_addkey_pairwise_key;
1132 memcpy(remove_key.bssid, bssid,
1133 sizeof(remove_key.bssid));
1135 memset(remove_key.bssid, 0xff,
1136 sizeof(remove_key.bssid));
1138 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1139 sizeof(remove_key));
1143 keyindex = cpu_to_le32(index);
1144 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1148 "removing encryption key %d failed (%08X)",
1154 /* if it is transmit key, disable encryption */
1155 if (index == priv->encr_tx_key_index)
1156 set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
1162 static void set_multicast_list(struct usbnet *usbdev)
1164 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1165 struct dev_mc_list *mclist;
1170 filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
1172 if (usbdev->net->flags & IFF_PROMISC) {
1173 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1174 RNDIS_PACKET_TYPE_ALL_LOCAL;
1175 } else if (usbdev->net->flags & IFF_ALLMULTI ||
1176 usbdev->net->mc_count > priv->multicast_size) {
1177 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1178 } else if (usbdev->net->mc_count > 0) {
1179 size = min(priv->multicast_size, usbdev->net->mc_count);
1180 buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
1183 "couldn't alloc %d bytes of memory",
1188 mclist = usbdev->net->mc_list;
1189 for (i = 0; i < size && mclist; mclist = mclist->next) {
1190 if (mclist->dmi_addrlen != ETH_ALEN)
1193 memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
1197 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
1199 if (ret == 0 && i > 0)
1200 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1202 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1204 devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
1205 i, priv->multicast_size, ret);
1210 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1213 devwarn(usbdev, "couldn't set packet filter: %08x",
1214 le32_to_cpu(filter));
1217 devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
1218 le32_to_cpu(filter), ret);
1225 static int rndis_change_virtual_intf(struct wiphy *wiphy, int ifindex,
1226 enum nl80211_iftype type, u32 *flags,
1227 struct vif_params *params)
1229 struct net_device *dev;
1230 struct usbnet *usbdev;
1233 /* we're under RTNL */
1234 dev = __dev_get_by_index(&init_net, ifindex);
1237 usbdev = netdev_priv(dev);
1240 case NL80211_IFTYPE_ADHOC:
1241 mode = ndis_80211_infra_adhoc;
1243 case NL80211_IFTYPE_STATION:
1244 mode = ndis_80211_infra_infra;
1250 return set_infra_mode(usbdev, mode);
1254 #define SCAN_DELAY_JIFFIES (HZ)
1255 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1256 struct cfg80211_scan_request *request)
1258 struct usbnet *usbdev = netdev_priv(dev);
1259 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1263 devdbg(usbdev, "cfg80211.scan");
1268 if (priv->scan_request && priv->scan_request != request)
1271 priv->scan_request = request;
1273 tmp = cpu_to_le32(1);
1274 ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1277 /* Wait before retrieving scan results from device */
1278 queue_delayed_work(priv->workqueue, &priv->scan_work,
1279 SCAN_DELAY_JIFFIES);
1286 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1287 struct ndis_80211_bssid_ex *bssid)
1289 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1290 struct ieee80211_channel *channel;
1294 u16 beacon_interval;
1295 struct ndis_80211_fixed_ies *fixed;
1296 int ie_len, bssid_len;
1299 /* parse bssid structure */
1300 bssid_len = le32_to_cpu(bssid->length);
1302 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1303 sizeof(struct ndis_80211_fixed_ies))
1306 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1308 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1309 ie_len = min(bssid_len - (int)sizeof(*bssid),
1310 (int)le32_to_cpu(bssid->ie_length));
1311 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1315 /* extract data for cfg80211_inform_bss */
1316 channel = ieee80211_get_channel(priv->wdev.wiphy,
1317 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1321 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1322 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1323 capability = le16_to_cpu(fixed->capabilities);
1324 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1326 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
1327 timestamp, capability, beacon_interval, ie, ie_len, signal,
1332 static int rndis_check_bssid_list(struct usbnet *usbdev)
1335 struct ndis_80211_bssid_list_ex *bssid_list;
1336 struct ndis_80211_bssid_ex *bssid;
1337 int ret = -EINVAL, len, count, bssid_len;
1339 devdbg(usbdev, "check_bssid_list");
1341 len = CONTROL_BUFFER_SIZE;
1342 buf = kmalloc(len, GFP_KERNEL);
1348 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
1353 bssid = bssid_list->bssid;
1354 bssid_len = le32_to_cpu(bssid->length);
1355 count = le32_to_cpu(bssid_list->num_items);
1356 devdbg(usbdev, "check_bssid_list: %d BSSIDs found", count);
1358 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
1359 rndis_bss_info_update(usbdev, bssid);
1361 bssid = (void *)bssid + bssid_len;
1362 bssid_len = le32_to_cpu(bssid->length);
1372 static void rndis_get_scan_results(struct work_struct *work)
1374 struct rndis_wext_private *priv =
1375 container_of(work, struct rndis_wext_private, scan_work.work);
1376 struct usbnet *usbdev = priv->usbdev;
1379 devdbg(usbdev, "get_scan_results");
1381 ret = rndis_check_bssid_list(usbdev);
1383 cfg80211_scan_done(priv->scan_request, ret < 0);
1385 priv->scan_request = NULL;
1390 * wireless extension handlers
1393 static int rndis_iw_commit(struct net_device *dev,
1394 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1401 static int rndis_iw_set_essid(struct net_device *dev,
1402 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1404 struct ndis_80211_ssid ssid;
1405 int length = wrqu->essid.length;
1406 struct usbnet *usbdev = netdev_priv(dev);
1408 devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
1409 wrqu->essid.flags, wrqu->essid.length, essid);
1411 if (length > NDIS_802_11_LENGTH_SSID)
1412 length = NDIS_802_11_LENGTH_SSID;
1414 ssid.length = cpu_to_le32(length);
1416 memcpy(ssid.essid, essid, length);
1418 memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID);
1420 set_assoc_params(usbdev);
1422 if (!wrqu->essid.flags || length == 0)
1423 return disassociate(usbdev, 1);
1425 return set_essid(usbdev, &ssid);
1429 static int rndis_iw_get_essid(struct net_device *dev,
1430 struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
1432 struct ndis_80211_ssid ssid;
1433 struct usbnet *usbdev = netdev_priv(dev);
1436 ret = get_essid(usbdev, &ssid);
1438 if (ret == 0 && le32_to_cpu(ssid.length) > 0) {
1439 wrqu->essid.flags = 1;
1440 wrqu->essid.length = le32_to_cpu(ssid.length);
1441 memcpy(essid, ssid.essid, wrqu->essid.length);
1442 essid[wrqu->essid.length] = 0;
1444 memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
1445 wrqu->essid.flags = 0;
1446 wrqu->essid.length = 0;
1448 devdbg(usbdev, "SIOCGIWESSID: %s", essid);
1453 static int rndis_iw_get_bssid(struct net_device *dev,
1454 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1456 struct usbnet *usbdev = netdev_priv(dev);
1457 unsigned char bssid[ETH_ALEN];
1460 ret = get_bssid(usbdev, bssid);
1463 devdbg(usbdev, "SIOCGIWAP: %pM", bssid);
1465 devdbg(usbdev, "SIOCGIWAP: <not associated>");
1467 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1468 memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
1474 static int rndis_iw_set_bssid(struct net_device *dev,
1475 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1477 struct usbnet *usbdev = netdev_priv(dev);
1478 u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
1481 devdbg(usbdev, "SIOCSIWAP: %pM", bssid);
1483 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1485 /* user apps may set ap's mac address, which is not required;
1486 * they may fail to work if this function fails, so return
1489 devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
1495 static int rndis_iw_set_auth(struct net_device *dev,
1496 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1498 struct iw_param *p = &wrqu->param;
1499 struct usbnet *usbdev = netdev_priv(dev);
1500 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1501 int ret = -ENOTSUPP;
1503 switch (p->flags & IW_AUTH_INDEX) {
1504 case IW_AUTH_WPA_VERSION:
1505 devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
1506 priv->wpa_version = p->value;
1510 case IW_AUTH_CIPHER_PAIRWISE:
1511 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
1512 priv->wpa_cipher_pair = p->value;
1516 case IW_AUTH_CIPHER_GROUP:
1517 devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
1518 priv->wpa_cipher_group = p->value;
1522 case IW_AUTH_KEY_MGMT:
1523 devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
1524 priv->wpa_keymgmt = p->value;
1528 case IW_AUTH_TKIP_COUNTERMEASURES:
1529 devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
1534 case IW_AUTH_DROP_UNENCRYPTED:
1535 devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
1539 case IW_AUTH_80211_AUTH_ALG:
1540 devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
1541 priv->wpa_authalg = p->value;
1545 case IW_AUTH_WPA_ENABLED:
1546 devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
1547 if (wrqu->param.value)
1548 deauthenticate(usbdev);
1552 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1553 devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
1558 case IW_AUTH_ROAMING_CONTROL:
1559 devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
1563 case IW_AUTH_PRIVACY_INVOKED:
1564 devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
1565 wrqu->param.flags & IW_AUTH_INDEX);
1569 devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x",
1570 p->flags & IW_AUTH_INDEX, p->value);
1576 static int rndis_iw_get_auth(struct net_device *dev,
1577 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1579 struct iw_param *p = &wrqu->param;
1580 struct usbnet *usbdev = netdev_priv(dev);
1581 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1583 switch (p->flags & IW_AUTH_INDEX) {
1584 case IW_AUTH_WPA_VERSION:
1585 p->value = priv->wpa_version;
1587 case IW_AUTH_CIPHER_PAIRWISE:
1588 p->value = priv->wpa_cipher_pair;
1590 case IW_AUTH_CIPHER_GROUP:
1591 p->value = priv->wpa_cipher_group;
1593 case IW_AUTH_KEY_MGMT:
1594 p->value = priv->wpa_keymgmt;
1596 case IW_AUTH_80211_AUTH_ALG:
1597 p->value = priv->wpa_authalg;
1600 devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
1601 wrqu->param.flags & IW_AUTH_INDEX);
1608 static int rndis_iw_set_encode(struct net_device *dev,
1609 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1611 struct usbnet *usbdev = netdev_priv(dev);
1612 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1613 int ret, index, key_len;
1616 index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
1618 /* iwconfig gives index as 1 - N */
1622 index = priv->encr_tx_key_index;
1624 if (index < 0 || index >= 4) {
1625 devwarn(usbdev, "encryption index out of range (%u)", index);
1629 /* remove key if disabled */
1630 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
1631 if (remove_key(usbdev, index, NULL))
1637 /* global encryption state (for all keys) */
1638 if (wrqu->data.flags & IW_ENCODE_OPEN)
1639 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1640 IW_AUTH_ALG_OPEN_SYSTEM);
1641 else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
1642 ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
1643 IW_AUTH_ALG_SHARED_KEY);
1647 if (wrqu->data.length > 0) {
1648 key_len = wrqu->data.length;
1651 /* must be set as tx key */
1652 if (priv->encr_key_len[index] == 0)
1654 key_len = priv->encr_key_len[index];
1655 key = priv->encr_keys[index];
1656 priv->encr_tx_key_index = index;
1659 if (add_wep_key(usbdev, key, key_len, index) != 0)
1662 if (index == priv->encr_tx_key_index)
1663 /* ndis drivers want essid to be set after setting encr */
1664 set_essid(usbdev, &priv->essid);
1670 static int rndis_iw_set_encode_ext(struct net_device *dev,
1671 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1673 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1674 struct usbnet *usbdev = netdev_priv(dev);
1675 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1678 keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
1680 /* iwconfig gives index as 1 - N */
1684 keyidx = priv->encr_tx_key_index;
1686 if (keyidx < 0 || keyidx >= 4)
1689 if (ext->alg == WPA_ALG_WEP) {
1690 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1691 priv->encr_tx_key_index = keyidx;
1692 return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
1695 if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
1696 ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
1697 return remove_key(usbdev, keyidx, NULL);
1700 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID)
1701 flags |= ndis_80211_addkey_set_init_recv_seq;
1702 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY))
1703 flags |= ndis_80211_addkey_pairwise_key;
1704 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
1705 flags |= ndis_80211_addkey_transmit_key;
1707 return add_wpa_key(usbdev, ext->key, ext->key_len, keyidx, &ext->addr,
1708 ext->rx_seq, ext->alg, flags);
1712 static int rndis_iw_set_genie(struct net_device *dev,
1713 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1715 struct usbnet *usbdev = netdev_priv(dev);
1716 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1722 for (j = 0; j < wrqu->data.length; j += 8)
1724 "SIOCSIWGENIE %04x - "
1725 "%02x %02x %02x %02x %02x %02x %02x %02x", j,
1726 gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
1727 gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
1729 /* clear existing IEs */
1730 if (priv->wpa_ie_len) {
1731 kfree(priv->wpa_ie);
1732 priv->wpa_ie_len = 0;
1736 priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
1738 priv->wpa_ie_len = wrqu->data.length;
1739 memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
1746 static int rndis_iw_get_genie(struct net_device *dev,
1747 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1749 struct usbnet *usbdev = netdev_priv(dev);
1750 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1752 devdbg(usbdev, "SIOCGIWGENIE");
1754 if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
1755 wrqu->data.length = 0;
1759 if (wrqu->data.length < priv->wpa_ie_len)
1762 wrqu->data.length = priv->wpa_ie_len;
1763 memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
1769 static int rndis_iw_set_rts(struct net_device *dev,
1770 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1772 struct usbnet *usbdev = netdev_priv(dev);
1774 devdbg(usbdev, "SIOCSIWRTS");
1776 tmp = cpu_to_le32(wrqu->rts.value);
1777 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1782 static int rndis_iw_get_rts(struct net_device *dev,
1783 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1785 struct usbnet *usbdev = netdev_priv(dev);
1790 ret = rndis_query_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp, &len);
1792 wrqu->rts.value = le32_to_cpu(tmp);
1793 wrqu->rts.flags = 1;
1794 wrqu->rts.disabled = 0;
1797 devdbg(usbdev, "SIOCGIWRTS: %d", wrqu->rts.value);
1803 static int rndis_iw_set_frag(struct net_device *dev,
1804 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1806 struct usbnet *usbdev = netdev_priv(dev);
1809 devdbg(usbdev, "SIOCSIWFRAG");
1811 tmp = cpu_to_le32(wrqu->frag.value);
1812 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1817 static int rndis_iw_get_frag(struct net_device *dev,
1818 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1820 struct usbnet *usbdev = netdev_priv(dev);
1825 ret = rndis_query_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1828 wrqu->frag.value = le32_to_cpu(tmp);
1829 wrqu->frag.flags = 1;
1830 wrqu->frag.disabled = 0;
1832 devdbg(usbdev, "SIOCGIWFRAG: %d", wrqu->frag.value);
1837 static int rndis_iw_set_freq(struct net_device *dev,
1838 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1840 struct usbnet *usbdev = netdev_priv(dev);
1841 struct ndis_80211_conf config;
1842 unsigned int dsconfig;
1845 /* this OID is valid only when not associated */
1846 if (is_associated(usbdev))
1850 if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
1853 len = sizeof(config);
1854 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1856 devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
1860 config.ds_config = cpu_to_le32(dsconfig);
1862 devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
1863 return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1868 static int rndis_iw_get_freq(struct net_device *dev,
1869 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1871 struct usbnet *usbdev = netdev_priv(dev);
1872 struct ndis_80211_conf config;
1875 len = sizeof(config);
1876 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1878 dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq);
1880 devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
1885 static int rndis_iw_get_txpower(struct net_device *dev,
1886 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1888 struct usbnet *usbdev = netdev_priv(dev);
1889 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1892 if (priv->radio_on) {
1893 /* fake since changing tx_power (by userlevel) not supported */
1894 tx_power = cpu_to_le32(get_bcm4320_power(priv));
1896 wrqu->txpower.flags = IW_TXPOW_MWATT;
1897 wrqu->txpower.value = le32_to_cpu(tx_power);
1898 wrqu->txpower.disabled = 0;
1900 wrqu->txpower.flags = IW_TXPOW_MWATT;
1901 wrqu->txpower.value = 0;
1902 wrqu->txpower.disabled = 1;
1905 devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
1911 static int rndis_iw_set_txpower(struct net_device *dev,
1912 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1914 struct usbnet *usbdev = netdev_priv(dev);
1915 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1916 __le32 tx_power = 0;
1918 if (!wrqu->txpower.disabled) {
1919 if (wrqu->txpower.flags == IW_TXPOW_MWATT)
1920 tx_power = cpu_to_le32(wrqu->txpower.value);
1921 else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
1922 if (wrqu->txpower.value > 20)
1923 tx_power = cpu_to_le32(128);
1924 else if (wrqu->txpower.value < -43)
1925 tx_power = cpu_to_le32(127);
1928 tmp = wrqu->txpower.value;
1931 tx_power = cpu_to_le32((unsigned char)tmp);
1936 devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
1938 if (le32_to_cpu(tx_power) != 0) {
1939 /* txpower unsupported, just turn radio on */
1940 if (!priv->radio_on)
1941 return disassociate(usbdev, 1);
1942 return 0; /* all ready on */
1945 /* tx_power == 0, turn off radio */
1946 return disassociate(usbdev, 0);
1950 static int rndis_iw_get_rate(struct net_device *dev,
1951 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1953 struct usbnet *usbdev = netdev_priv(dev);
1958 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
1960 wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
1961 wrqu->bitrate.disabled = 0;
1962 wrqu->bitrate.flags = 1;
1968 static int rndis_iw_set_mlme(struct net_device *dev,
1969 struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
1971 struct usbnet *usbdev = netdev_priv(dev);
1972 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1973 struct iw_mlme *mlme = (struct iw_mlme *)extra;
1974 unsigned char bssid[ETH_ALEN];
1976 get_bssid(usbdev, bssid);
1978 if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
1981 switch (mlme->cmd) {
1982 case IW_MLME_DEAUTH:
1983 return deauthenticate(usbdev);
1984 case IW_MLME_DISASSOC:
1985 return disassociate(usbdev, priv->radio_on);
1994 static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
1996 struct usbnet *usbdev = netdev_priv(dev);
1997 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
1998 unsigned long flags;
2000 spin_lock_irqsave(&priv->stats_lock, flags);
2001 memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
2002 spin_unlock_irqrestore(&priv->stats_lock, flags);
2004 return &priv->iwstats;
2008 #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
2009 static const iw_handler rndis_iw_handler[] =
2011 IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit,
2012 IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname,
2013 IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq,
2014 IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq,
2015 IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode,
2016 IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode,
2017 IW_IOCTL(SIOCGIWRANGE) = (iw_handler) cfg80211_wext_giwrange,
2018 IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid,
2019 IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid,
2020 IW_IOCTL(SIOCSIWSCAN) = (iw_handler) cfg80211_wext_siwscan,
2021 IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan,
2022 IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid,
2023 IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid,
2024 IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate,
2025 IW_IOCTL(SIOCSIWRTS) = rndis_iw_set_rts,
2026 IW_IOCTL(SIOCGIWRTS) = rndis_iw_get_rts,
2027 IW_IOCTL(SIOCSIWFRAG) = rndis_iw_set_frag,
2028 IW_IOCTL(SIOCGIWFRAG) = rndis_iw_get_frag,
2029 IW_IOCTL(SIOCSIWTXPOW) = rndis_iw_set_txpower,
2030 IW_IOCTL(SIOCGIWTXPOW) = rndis_iw_get_txpower,
2031 IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode,
2032 IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
2033 IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth,
2034 IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth,
2035 IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie,
2036 IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie,
2037 IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme,
2040 static const iw_handler rndis_wext_private_handler[] = {
2043 static const struct iw_priv_args rndis_wext_private_args[] = {
2047 static const struct iw_handler_def rndis_iw_handlers = {
2048 .num_standard = ARRAY_SIZE(rndis_iw_handler),
2049 .num_private = ARRAY_SIZE(rndis_wext_private_handler),
2050 .num_private_args = ARRAY_SIZE(rndis_wext_private_args),
2051 .standard = (iw_handler *)rndis_iw_handler,
2052 .private = (iw_handler *)rndis_wext_private_handler,
2053 .private_args = (struct iw_priv_args *)rndis_wext_private_args,
2054 .get_wireless_stats = rndis_get_wireless_stats,
2058 static void rndis_wext_worker(struct work_struct *work)
2060 struct rndis_wext_private *priv =
2061 container_of(work, struct rndis_wext_private, work);
2062 struct usbnet *usbdev = priv->usbdev;
2063 union iwreq_data evt;
2064 unsigned char bssid[ETH_ALEN];
2065 struct ndis_80211_assoc_info *info;
2066 int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32;
2069 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) {
2070 netif_carrier_on(usbdev->net);
2072 info = kzalloc(assoc_size, GFP_KERNEL);
2076 /* Get association info IEs from device and send them back to
2078 ret = get_association_info(usbdev, info, assoc_size);
2080 evt.data.length = le32_to_cpu(info->req_ie_length);
2081 if (evt.data.length > 0) {
2082 offset = le32_to_cpu(info->offset_req_ies);
2083 wireless_send_event(usbdev->net,
2084 IWEVASSOCREQIE, &evt,
2085 (char *)info + offset);
2088 evt.data.length = le32_to_cpu(info->resp_ie_length);
2089 if (evt.data.length > 0) {
2090 offset = le32_to_cpu(info->offset_resp_ies);
2091 wireless_send_event(usbdev->net,
2092 IWEVASSOCRESPIE, &evt,
2093 (char *)info + offset);
2100 ret = get_bssid(usbdev, bssid);
2103 evt.data.length = 0;
2104 memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
2105 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2109 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) {
2110 netif_carrier_off(usbdev->net);
2113 evt.data.length = 0;
2114 memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
2115 wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
2118 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2119 set_multicast_list(usbdev);
2122 static void rndis_wext_set_multicast_list(struct net_device *dev)
2124 struct usbnet *usbdev = netdev_priv(dev);
2125 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2127 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2130 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2131 queue_work(priv->workqueue, &priv->work);
2134 static void rndis_wext_link_change(struct usbnet *usbdev, int state)
2136 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2138 /* queue work to avoid recursive calls into rndis_command */
2139 set_bit(state ? WORK_LINK_UP : WORK_LINK_DOWN, &priv->work_pending);
2140 queue_work(priv->workqueue, &priv->work);
2144 static int rndis_wext_get_caps(struct usbnet *usbdev)
2149 } networks_supported;
2150 int len, retval, i, n;
2151 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2153 /* determine supported modes */
2154 len = sizeof(networks_supported);
2155 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
2156 &networks_supported, &len);
2158 n = le32_to_cpu(networks_supported.num_items);
2161 for (i = 0; i < n; i++) {
2162 switch (le32_to_cpu(networks_supported.items[i])) {
2163 case ndis_80211_type_freq_hop:
2164 case ndis_80211_type_direct_seq:
2165 priv->caps |= CAP_MODE_80211B;
2167 case ndis_80211_type_ofdm_a:
2168 priv->caps |= CAP_MODE_80211A;
2170 case ndis_80211_type_ofdm_g:
2171 priv->caps |= CAP_MODE_80211G;
2181 #define STATS_UPDATE_JIFFIES (HZ)
2182 static void rndis_update_wireless_stats(struct work_struct *work)
2184 struct rndis_wext_private *priv =
2185 container_of(work, struct rndis_wext_private, stats_work.work);
2186 struct usbnet *usbdev = priv->usbdev;
2187 struct iw_statistics iwstats;
2190 unsigned long flags;
2191 int update_jiffies = STATS_UPDATE_JIFFIES;
2194 spin_lock_irqsave(&priv->stats_lock, flags);
2195 memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
2196 spin_unlock_irqrestore(&priv->stats_lock, flags);
2198 /* only update stats when connected */
2199 if (!is_associated(usbdev)) {
2200 iwstats.qual.qual = 0;
2201 iwstats.qual.level = 0;
2202 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2203 | IW_QUAL_LEVEL_UPDATED
2204 | IW_QUAL_NOISE_INVALID
2205 | IW_QUAL_QUAL_INVALID
2206 | IW_QUAL_LEVEL_INVALID;
2211 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2213 devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
2216 memset(&iwstats.qual, 0, sizeof(iwstats.qual));
2217 iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi));
2218 iwstats.qual.level = level_to_qual(le32_to_cpu(rssi));
2219 iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2220 | IW_QUAL_LEVEL_UPDATED
2221 | IW_QUAL_NOISE_INVALID;
2224 memset(&iwstats.discard, 0, sizeof(iwstats.discard));
2227 ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
2229 iwstats.discard.misc += le32_to_cpu(tmp);
2232 ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
2234 iwstats.discard.misc += le32_to_cpu(tmp);
2237 ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
2239 iwstats.discard.misc += le32_to_cpu(tmp);
2241 /* Workaround transfer stalls on poor quality links.
2242 * TODO: find right way to fix these stalls (as stalls do not happen
2243 * with ndiswrapper/windows driver). */
2244 if (iwstats.qual.qual <= 25) {
2245 /* Decrease stats worker interval to catch stalls.
2246 * faster. Faster than 400-500ms causes packet loss,
2247 * Slower doesn't catch stalls fast enough.
2249 j = msecs_to_jiffies(priv->param_workaround_interval);
2250 if (j > STATS_UPDATE_JIFFIES)
2251 j = STATS_UPDATE_JIFFIES;
2256 /* Send scan OID. Use of both OIDs is required to get device
2259 tmp = cpu_to_le32(1);
2260 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
2263 len = CONTROL_BUFFER_SIZE;
2264 buf = kmalloc(len, GFP_KERNEL);
2268 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2272 spin_lock_irqsave(&priv->stats_lock, flags);
2273 memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
2274 spin_unlock_irqrestore(&priv->stats_lock, flags);
2276 if (update_jiffies >= HZ)
2277 update_jiffies = round_jiffies_relative(update_jiffies);
2279 j = round_jiffies_relative(update_jiffies);
2280 if (abs(j - update_jiffies) <= 10)
2284 queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
2288 static int bcm4320a_early_init(struct usbnet *usbdev)
2290 /* bcm4320a doesn't handle configuration parameters well. Try
2291 * set any and you get partially zeroed mac and broken device.
2298 static int bcm4320b_early_init(struct usbnet *usbdev)
2300 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2303 /* Early initialization settings, setting these won't have effect
2304 * if called after generic_rndis_bind().
2307 priv->param_country[0] = modparam_country[0];
2308 priv->param_country[1] = modparam_country[1];
2309 priv->param_country[2] = 0;
2310 priv->param_frameburst = modparam_frameburst;
2311 priv->param_afterburner = modparam_afterburner;
2312 priv->param_power_save = modparam_power_save;
2313 priv->param_power_output = modparam_power_output;
2314 priv->param_roamtrigger = modparam_roamtrigger;
2315 priv->param_roamdelta = modparam_roamdelta;
2317 priv->param_country[0] = toupper(priv->param_country[0]);
2318 priv->param_country[1] = toupper(priv->param_country[1]);
2319 /* doesn't support EU as country code, use FI instead */
2320 if (!strcmp(priv->param_country, "EU"))
2321 strcpy(priv->param_country, "FI");
2323 if (priv->param_power_save < 0)
2324 priv->param_power_save = 0;
2325 else if (priv->param_power_save > 2)
2326 priv->param_power_save = 2;
2328 if (priv->param_power_output < 0)
2329 priv->param_power_output = 0;
2330 else if (priv->param_power_output > 3)
2331 priv->param_power_output = 3;
2333 if (priv->param_roamtrigger < -80)
2334 priv->param_roamtrigger = -80;
2335 else if (priv->param_roamtrigger > -60)
2336 priv->param_roamtrigger = -60;
2338 if (priv->param_roamdelta < 0)
2339 priv->param_roamdelta = 0;
2340 else if (priv->param_roamdelta > 2)
2341 priv->param_roamdelta = 2;
2343 if (modparam_workaround_interval < 0)
2344 priv->param_workaround_interval = 500;
2346 priv->param_workaround_interval = modparam_workaround_interval;
2348 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
2349 rndis_set_config_parameter_str(usbdev, "FrameBursting",
2350 priv->param_frameburst ? "1" : "0");
2351 rndis_set_config_parameter_str(usbdev, "Afterburner",
2352 priv->param_afterburner ? "1" : "0");
2353 sprintf(buf, "%d", priv->param_power_save);
2354 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
2355 sprintf(buf, "%d", priv->param_power_output);
2356 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
2357 sprintf(buf, "%d", priv->param_roamtrigger);
2358 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
2359 sprintf(buf, "%d", priv->param_roamdelta);
2360 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
2365 /* same as rndis_netdev_ops but with local multicast handler */
2366 static const struct net_device_ops rndis_wext_netdev_ops = {
2367 .ndo_open = usbnet_open,
2368 .ndo_stop = usbnet_stop,
2369 .ndo_start_xmit = usbnet_start_xmit,
2370 .ndo_tx_timeout = usbnet_tx_timeout,
2371 .ndo_set_mac_address = eth_mac_addr,
2372 .ndo_validate_addr = eth_validate_addr,
2373 .ndo_set_multicast_list = rndis_wext_set_multicast_list,
2377 static int rndis_wext_bind(struct usbnet *usbdev, struct usb_interface *intf)
2379 struct wiphy *wiphy;
2380 struct rndis_wext_private *priv;
2384 /* allocate wiphy and rndis private data
2385 * NOTE: We only support a single virtual interface, so wiphy
2386 * and wireless_dev are somewhat synonymous for this device.
2388 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wext_private));
2392 priv = wiphy_priv(wiphy);
2393 usbdev->net->ieee80211_ptr = &priv->wdev;
2394 priv->wdev.wiphy = wiphy;
2395 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2397 /* These have to be initialized before calling generic_rndis_bind().
2398 * Otherwise we'll be in big trouble in rndis_wext_early_init().
2400 usbdev->driver_priv = priv;
2401 usbdev->net->wireless_handlers = &rndis_iw_handlers;
2402 priv->usbdev = usbdev;
2404 mutex_init(&priv->command_lock);
2405 spin_lock_init(&priv->stats_lock);
2407 /* because rndis_command() sleeps we need to use workqueue */
2408 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
2409 INIT_WORK(&priv->work, rndis_wext_worker);
2410 INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
2411 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
2413 /* try bind rndis_host */
2414 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
2418 /* generic_rndis_bind set packet filter to multicast_all+
2419 * promisc mode which doesn't work well for our devices (device
2420 * picks up rssi to closest station instead of to access point).
2422 * rndis_host wants to avoid all OID as much as possible
2423 * so do promisc/multicast handling in rndis_wext.
2425 usbdev->net->netdev_ops = &rndis_wext_netdev_ops;
2427 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
2428 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
2432 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
2434 priv->multicast_size = le32_to_cpu(tmp);
2435 if (retval < 0 || priv->multicast_size < 0)
2436 priv->multicast_size = 0;
2437 if (priv->multicast_size > 0)
2438 usbdev->net->flags |= IFF_MULTICAST;
2440 usbdev->net->flags &= ~IFF_MULTICAST;
2442 priv->iwstats.qual.qual = 0;
2443 priv->iwstats.qual.level = 0;
2444 priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
2445 | IW_QUAL_LEVEL_UPDATED
2446 | IW_QUAL_NOISE_INVALID
2447 | IW_QUAL_QUAL_INVALID
2448 | IW_QUAL_LEVEL_INVALID;
2450 /* fill-out wiphy structure and register w/ cfg80211 */
2451 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
2452 wiphy->privid = rndis_wiphy_privid;
2453 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
2454 | BIT(NL80211_IFTYPE_ADHOC);
2455 wiphy->max_scan_ssids = 1;
2457 /* TODO: fill-out band information based on priv->caps */
2458 rndis_wext_get_caps(usbdev);
2460 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
2461 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
2462 priv->band.channels = priv->channels;
2463 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
2464 priv->band.bitrates = priv->rates;
2465 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
2466 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
2467 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
2469 set_wiphy_dev(wiphy, &usbdev->udev->dev);
2471 if (wiphy_register(wiphy)) {
2476 set_default_iw_params(usbdev);
2480 disassociate(usbdev, 1);
2481 netif_carrier_off(usbdev->net);
2483 queue_delayed_work(priv->workqueue, &priv->stats_work,
2484 round_jiffies_relative(STATS_UPDATE_JIFFIES));
2489 cancel_delayed_work_sync(&priv->stats_work);
2490 cancel_delayed_work_sync(&priv->scan_work);
2491 cancel_work_sync(&priv->work);
2492 flush_workqueue(priv->workqueue);
2493 destroy_workqueue(priv->workqueue);
2500 static void rndis_wext_unbind(struct usbnet *usbdev, struct usb_interface *intf)
2502 struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
2504 /* turn radio off */
2505 disassociate(usbdev, 0);
2507 cancel_delayed_work_sync(&priv->stats_work);
2508 cancel_delayed_work_sync(&priv->scan_work);
2509 cancel_work_sync(&priv->work);
2510 flush_workqueue(priv->workqueue);
2511 destroy_workqueue(priv->workqueue);
2513 if (priv && priv->wpa_ie_len)
2514 kfree(priv->wpa_ie);
2516 rndis_unbind(usbdev, intf);
2518 wiphy_unregister(priv->wdev.wiphy);
2519 wiphy_free(priv->wdev.wiphy);
2523 static int rndis_wext_reset(struct usbnet *usbdev)
2525 return deauthenticate(usbdev);
2529 static const struct driver_info bcm4320b_info = {
2530 .description = "Wireless RNDIS device, BCM4320b based",
2531 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2532 .bind = rndis_wext_bind,
2533 .unbind = rndis_wext_unbind,
2534 .status = rndis_status,
2535 .rx_fixup = rndis_rx_fixup,
2536 .tx_fixup = rndis_tx_fixup,
2537 .reset = rndis_wext_reset,
2538 .early_init = bcm4320b_early_init,
2539 .link_change = rndis_wext_link_change,
2542 static const struct driver_info bcm4320a_info = {
2543 .description = "Wireless RNDIS device, BCM4320a based",
2544 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2545 .bind = rndis_wext_bind,
2546 .unbind = rndis_wext_unbind,
2547 .status = rndis_status,
2548 .rx_fixup = rndis_rx_fixup,
2549 .tx_fixup = rndis_tx_fixup,
2550 .reset = rndis_wext_reset,
2551 .early_init = bcm4320a_early_init,
2552 .link_change = rndis_wext_link_change,
2555 static const struct driver_info rndis_wext_info = {
2556 .description = "Wireless RNDIS device",
2557 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
2558 .bind = rndis_wext_bind,
2559 .unbind = rndis_wext_unbind,
2560 .status = rndis_status,
2561 .rx_fixup = rndis_rx_fixup,
2562 .tx_fixup = rndis_tx_fixup,
2563 .reset = rndis_wext_reset,
2564 .early_init = bcm4320a_early_init,
2565 .link_change = rndis_wext_link_change,
2568 /*-------------------------------------------------------------------------*/
2570 static const struct usb_device_id products [] = {
2571 #define RNDIS_MASTER_INTERFACE \
2572 .bInterfaceClass = USB_CLASS_COMM, \
2573 .bInterfaceSubClass = 2 /* ACM */, \
2574 .bInterfaceProtocol = 0x0ff
2576 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
2577 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
2580 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2581 | USB_DEVICE_ID_MATCH_DEVICE,
2583 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
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,
2590 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
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 = 0x011b, /* Belkin F5D7051 */
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,
2603 .idVendor = 0x1799, /* Belkin has two vendor ids */
2604 .idProduct = 0x011b, /* Belkin F5D7051 */
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 = 0x0014, /* Linksys WUSB54GSv2 */
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 = 0x0026, /* Linksys WUSB54GSC */
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 = 0x1717, /* Asus WL169gE */
2626 RNDIS_MASTER_INTERFACE,
2627 .driver_info = (unsigned long) &bcm4320b_info,
2629 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2630 | USB_DEVICE_ID_MATCH_DEVICE,
2632 .idProduct = 0xd11b, /* Eminent EM4045 */
2633 RNDIS_MASTER_INTERFACE,
2634 .driver_info = (unsigned long) &bcm4320b_info,
2636 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2637 | USB_DEVICE_ID_MATCH_DEVICE,
2639 .idProduct = 0x0715, /* BT Voyager 1055 */
2640 RNDIS_MASTER_INTERFACE,
2641 .driver_info = (unsigned long) &bcm4320b_info,
2643 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
2644 * parameters available, hardware probably contain older firmware version with
2645 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
2648 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2649 | USB_DEVICE_ID_MATCH_DEVICE,
2651 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
2652 RNDIS_MASTER_INTERFACE,
2653 .driver_info = (unsigned long) &bcm4320a_info,
2655 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2656 | USB_DEVICE_ID_MATCH_DEVICE,
2658 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
2659 RNDIS_MASTER_INTERFACE,
2660 .driver_info = (unsigned long) &bcm4320a_info,
2662 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
2663 | USB_DEVICE_ID_MATCH_DEVICE,
2665 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
2666 RNDIS_MASTER_INTERFACE,
2667 .driver_info = (unsigned long) &bcm4320a_info,
2669 /* Generic Wireless RNDIS devices that we don't have exact
2670 * idVendor/idProduct/chip yet.
2673 /* RNDIS is MSFT's un-official variant of CDC ACM */
2674 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
2675 .driver_info = (unsigned long) &rndis_wext_info,
2677 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
2678 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
2679 .driver_info = (unsigned long) &rndis_wext_info,
2683 MODULE_DEVICE_TABLE(usb, products);
2685 static struct usb_driver rndis_wlan_driver = {
2686 .name = "rndis_wlan",
2687 .id_table = products,
2688 .probe = usbnet_probe,
2689 .disconnect = usbnet_disconnect,
2690 .suspend = usbnet_suspend,
2691 .resume = usbnet_resume,
2694 static int __init rndis_wlan_init(void)
2696 return usb_register(&rndis_wlan_driver);
2698 module_init(rndis_wlan_init);
2700 static void __exit rndis_wlan_exit(void)
2702 usb_deregister(&rndis_wlan_driver);
2704 module_exit(rndis_wlan_exit);
2706 MODULE_AUTHOR("Bjorge Dijkstra");
2707 MODULE_AUTHOR("Jussi Kivilinna");
2708 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
2709 MODULE_LICENSE("GPL");