/* * Driver for RNDIS based wireless USB devices. * * Copyright (C) 2007 by Bjorge Dijkstra * Copyright (C) 2008-2009 by Jussi Kivilinna * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Portions of this file are based on NDISwrapper project, * Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani * http://ndiswrapper.sourceforge.net/ */ // #define DEBUG // error path messages, extra info // #define VERBOSE // more; success messages #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* NOTE: All these are settings for Broadcom chipset */ static char modparam_country[4] = "EU"; module_param_string(country, modparam_country, 4, 0444); MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU"); static int modparam_frameburst = 1; module_param_named(frameburst, modparam_frameburst, int, 0444); MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)"); static int modparam_afterburner = 0; module_param_named(afterburner, modparam_afterburner, int, 0444); MODULE_PARM_DESC(afterburner, "enable afterburner aka '125 High Speed Mode' (default: off)"); static int modparam_power_save = 0; module_param_named(power_save, modparam_power_save, int, 0444); MODULE_PARM_DESC(power_save, "set power save mode: 0=off, 1=on, 2=fast (default: off)"); static int modparam_power_output = 3; module_param_named(power_output, modparam_power_output, int, 0444); MODULE_PARM_DESC(power_output, "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)"); static int modparam_roamtrigger = -70; module_param_named(roamtrigger, modparam_roamtrigger, int, 0444); MODULE_PARM_DESC(roamtrigger, "set roaming dBm trigger: -80=optimize for distance, " "-60=bandwidth (default: -70)"); static int modparam_roamdelta = 1; module_param_named(roamdelta, modparam_roamdelta, int, 0444); MODULE_PARM_DESC(roamdelta, "set roaming tendency: 0=aggressive, 1=moderate, " "2=conservative (default: moderate)"); static int modparam_workaround_interval = 500; module_param_named(workaround_interval, modparam_workaround_interval, int, 0444); MODULE_PARM_DESC(workaround_interval, "set stall workaround interval in msecs (default: 500)"); /* various RNDIS OID defs */ #define OID_GEN_LINK_SPEED cpu_to_le32(0x00010107) #define OID_GEN_RNDIS_CONFIG_PARAMETER cpu_to_le32(0x0001021b) #define OID_GEN_XMIT_OK cpu_to_le32(0x00020101) #define OID_GEN_RCV_OK cpu_to_le32(0x00020102) #define OID_GEN_XMIT_ERROR cpu_to_le32(0x00020103) #define OID_GEN_RCV_ERROR cpu_to_le32(0x00020104) #define OID_GEN_RCV_NO_BUFFER cpu_to_le32(0x00020105) #define OID_802_3_CURRENT_ADDRESS cpu_to_le32(0x01010102) #define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103) #define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104) #define OID_802_11_BSSID cpu_to_le32(0x0d010101) #define OID_802_11_SSID cpu_to_le32(0x0d010102) #define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108) #define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113) #define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114) #define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115) #define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118) #define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119) #define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a) #define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b) #define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d) #define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e) #define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f) #define OID_802_11_PMKID cpu_to_le32(0x0d010123) #define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203) #define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204) #define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205) #define OID_802_11_RSSI cpu_to_le32(0x0d010206) #define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207) #define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209) #define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a) #define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e) #define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211) #define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217) /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */ #define WL_NOISE -96 /* typical noise level in dBm */ #define WL_SIGMAX -32 /* typical maximum signal level in dBm */ /* Assume that Broadcom 4320 (only chipset at time of writing known to be * based on wireless rndis) has default txpower of 13dBm. * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications. * 100% : 20 mW ~ 13dBm * 75% : 15 mW ~ 12dBm * 50% : 10 mW ~ 10dBm * 25% : 5 mW ~ 7dBm */ #define BCM4320_DEFAULT_TXPOWER_DBM_100 13 #define BCM4320_DEFAULT_TXPOWER_DBM_75 12 #define BCM4320_DEFAULT_TXPOWER_DBM_50 10 #define BCM4320_DEFAULT_TXPOWER_DBM_25 7 /* codes for "status" field of completion messages */ #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011) #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012) /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c * slightly modified for datatype endianess, etc */ #define NDIS_802_11_LENGTH_SSID 32 #define NDIS_802_11_LENGTH_RATES 8 #define NDIS_802_11_LENGTH_RATES_EX 16 enum ndis_80211_net_type { NDIS_80211_TYPE_FREQ_HOP, NDIS_80211_TYPE_DIRECT_SEQ, NDIS_80211_TYPE_OFDM_A, NDIS_80211_TYPE_OFDM_G }; enum ndis_80211_net_infra { NDIS_80211_INFRA_ADHOC, NDIS_80211_INFRA_INFRA, NDIS_80211_INFRA_AUTO_UNKNOWN }; enum ndis_80211_auth_mode { NDIS_80211_AUTH_OPEN, NDIS_80211_AUTH_SHARED, NDIS_80211_AUTH_AUTO_SWITCH, NDIS_80211_AUTH_WPA, NDIS_80211_AUTH_WPA_PSK, NDIS_80211_AUTH_WPA_NONE, NDIS_80211_AUTH_WPA2, NDIS_80211_AUTH_WPA2_PSK }; enum ndis_80211_encr_status { NDIS_80211_ENCR_WEP_ENABLED, NDIS_80211_ENCR_DISABLED, NDIS_80211_ENCR_WEP_KEY_ABSENT, NDIS_80211_ENCR_NOT_SUPPORTED, NDIS_80211_ENCR_TKIP_ENABLED, NDIS_80211_ENCR_TKIP_KEY_ABSENT, NDIS_80211_ENCR_CCMP_ENABLED, NDIS_80211_ENCR_CCMP_KEY_ABSENT }; enum ndis_80211_priv_filter { NDIS_80211_PRIV_ACCEPT_ALL, NDIS_80211_PRIV_8021X_WEP }; enum ndis_80211_addkey_bits { NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28), NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29), NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30), NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31) }; enum ndis_80211_addwep_bits { NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30), NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31) }; struct ndis_80211_ssid { __le32 length; u8 essid[NDIS_802_11_LENGTH_SSID]; } __attribute__((packed)); struct ndis_80211_conf_freq_hop { __le32 length; __le32 hop_pattern; __le32 hop_set; __le32 dwell_time; } __attribute__((packed)); struct ndis_80211_conf { __le32 length; __le32 beacon_period; __le32 atim_window; __le32 ds_config; struct ndis_80211_conf_freq_hop fh_config; } __attribute__((packed)); struct ndis_80211_bssid_ex { __le32 length; u8 mac[6]; u8 padding[2]; struct ndis_80211_ssid ssid; __le32 privacy; __le32 rssi; __le32 net_type; struct ndis_80211_conf config; __le32 net_infra; u8 rates[NDIS_802_11_LENGTH_RATES_EX]; __le32 ie_length; u8 ies[0]; } __attribute__((packed)); struct ndis_80211_bssid_list_ex { __le32 num_items; struct ndis_80211_bssid_ex bssid[0]; } __attribute__((packed)); struct ndis_80211_fixed_ies { u8 timestamp[8]; __le16 beacon_interval; __le16 capabilities; } __attribute__((packed)); struct ndis_80211_wep_key { __le32 size; __le32 index; __le32 length; u8 material[32]; } __attribute__((packed)); struct ndis_80211_key { __le32 size; __le32 index; __le32 length; u8 bssid[6]; u8 padding[6]; u8 rsc[8]; u8 material[32]; } __attribute__((packed)); struct ndis_80211_remove_key { __le32 size; __le32 index; u8 bssid[6]; } __attribute__((packed)); struct ndis_config_param { __le32 name_offs; __le32 name_length; __le32 type; __le32 value_offs; __le32 value_length; } __attribute__((packed)); struct ndis_80211_assoc_info { __le32 length; __le16 req_ies; struct req_ie { __le16 capa; __le16 listen_interval; u8 cur_ap_address[6]; } req_ie; __le32 req_ie_length; __le32 offset_req_ies; __le16 resp_ies; struct resp_ie { __le16 capa; __le16 status_code; __le16 assoc_id; } resp_ie; __le32 resp_ie_length; __le32 offset_resp_ies; } __attribute__((packed)); /* these have to match what is in wpa_supplicant */ enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP }; enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP, CIPHER_WEP104 }; enum wpa_key_mgmt { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE, KEY_MGMT_802_1X_NO_WPA, KEY_MGMT_WPA_NONE }; /* * private data */ #define NET_TYPE_11FB 0 #define CAP_MODE_80211A 1 #define CAP_MODE_80211B 2 #define CAP_MODE_80211G 4 #define CAP_MODE_MASK 7 #define WORK_LINK_UP (1<<0) #define WORK_LINK_DOWN (1<<1) #define WORK_SET_MULTICAST_LIST (1<<2) #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set)) static const struct ieee80211_channel rndis_channels[] = { { .center_freq = 2412 }, { .center_freq = 2417 }, { .center_freq = 2422 }, { .center_freq = 2427 }, { .center_freq = 2432 }, { .center_freq = 2437 }, { .center_freq = 2442 }, { .center_freq = 2447 }, { .center_freq = 2452 }, { .center_freq = 2457 }, { .center_freq = 2462 }, { .center_freq = 2467 }, { .center_freq = 2472 }, { .center_freq = 2484 }, }; static const struct ieee80211_rate rndis_rates[] = { { .bitrate = 10 }, { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, { .bitrate = 60 }, { .bitrate = 90 }, { .bitrate = 120 }, { .bitrate = 180 }, { .bitrate = 240 }, { .bitrate = 360 }, { .bitrate = 480 }, { .bitrate = 540 } }; /* RNDIS device private data */ struct rndis_wlan_private { struct usbnet *usbdev; struct wireless_dev wdev; struct cfg80211_scan_request *scan_request; struct workqueue_struct *workqueue; struct delayed_work stats_work; struct delayed_work scan_work; struct work_struct work; struct mutex command_lock; spinlock_t stats_lock; unsigned long work_pending; struct ieee80211_supported_band band; struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)]; struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)]; struct iw_statistics iwstats; struct iw_statistics privstats; int caps; int multicast_size; /* module parameters */ char param_country[4]; int param_frameburst; int param_afterburner; int param_power_save; int param_power_output; int param_roamtrigger; int param_roamdelta; u32 param_workaround_interval; /* hardware state */ int radio_on; int infra_mode; struct ndis_80211_ssid essid; /* encryption stuff */ int encr_tx_key_index; char encr_keys[4][32]; int encr_key_len[4]; char encr_key_wpa[4]; int wpa_version; int wpa_keymgmt; int wpa_authalg; int wpa_ie_len; u8 *wpa_ie; int wpa_cipher_pair; int wpa_cipher_group; u8 command_buffer[COMMAND_BUFFER_SIZE]; }; /* * cfg80211 ops */ static int rndis_change_virtual_intf(struct wiphy *wiphy, struct net_device *dev, enum nl80211_iftype type, u32 *flags, struct vif_params *params); static int rndis_scan(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_scan_request *request); static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed); static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type, int dbm); static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm); static struct cfg80211_ops rndis_config_ops = { .change_virtual_intf = rndis_change_virtual_intf, .scan = rndis_scan, .set_wiphy_params = rndis_set_wiphy_params, .set_tx_power = rndis_set_tx_power, .get_tx_power = rndis_get_tx_power, }; static void *rndis_wiphy_privid = &rndis_wiphy_privid; static const unsigned char zero_bssid[ETH_ALEN] = {0,}; static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev) { return (struct rndis_wlan_private *)dev->driver_priv; } static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv) { switch (priv->param_power_output) { default: case 3: return BCM4320_DEFAULT_TXPOWER_DBM_100; case 2: return BCM4320_DEFAULT_TXPOWER_DBM_75; case 1: return BCM4320_DEFAULT_TXPOWER_DBM_50; case 0: return BCM4320_DEFAULT_TXPOWER_DBM_25; } } #ifdef DEBUG static const char *oid_to_string(__le32 oid) { switch (oid) { #define OID_STR(oid) case oid: return(#oid) /* from rndis_host.h */ OID_STR(OID_802_3_PERMANENT_ADDRESS); OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE); OID_STR(OID_GEN_CURRENT_PACKET_FILTER); OID_STR(OID_GEN_PHYSICAL_MEDIUM); /* from rndis_wlan.c */ OID_STR(OID_GEN_LINK_SPEED); OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER); OID_STR(OID_GEN_XMIT_OK); OID_STR(OID_GEN_RCV_OK); OID_STR(OID_GEN_XMIT_ERROR); OID_STR(OID_GEN_RCV_ERROR); OID_STR(OID_GEN_RCV_NO_BUFFER); OID_STR(OID_802_3_CURRENT_ADDRESS); OID_STR(OID_802_3_MULTICAST_LIST); OID_STR(OID_802_3_MAXIMUM_LIST_SIZE); OID_STR(OID_802_11_BSSID); OID_STR(OID_802_11_SSID); OID_STR(OID_802_11_INFRASTRUCTURE_MODE); OID_STR(OID_802_11_ADD_WEP); OID_STR(OID_802_11_REMOVE_WEP); OID_STR(OID_802_11_DISASSOCIATE); OID_STR(OID_802_11_AUTHENTICATION_MODE); OID_STR(OID_802_11_PRIVACY_FILTER); OID_STR(OID_802_11_BSSID_LIST_SCAN); OID_STR(OID_802_11_ENCRYPTION_STATUS); OID_STR(OID_802_11_ADD_KEY); OID_STR(OID_802_11_REMOVE_KEY); OID_STR(OID_802_11_ASSOCIATION_INFORMATION); OID_STR(OID_802_11_PMKID); OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED); OID_STR(OID_802_11_NETWORK_TYPE_IN_USE); OID_STR(OID_802_11_TX_POWER_LEVEL); OID_STR(OID_802_11_RSSI); OID_STR(OID_802_11_RSSI_TRIGGER); OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD); OID_STR(OID_802_11_RTS_THRESHOLD); OID_STR(OID_802_11_SUPPORTED_RATES); OID_STR(OID_802_11_CONFIGURATION); OID_STR(OID_802_11_BSSID_LIST); #undef OID_STR } return "?"; } #else static const char *oid_to_string(__le32 oid) { return "?"; } #endif /* translate error code */ static int rndis_error_status(__le32 rndis_status) { int ret = -EINVAL; switch (rndis_status) { case RNDIS_STATUS_SUCCESS: ret = 0; break; case RNDIS_STATUS_FAILURE: case RNDIS_STATUS_INVALID_DATA: ret = -EINVAL; break; case RNDIS_STATUS_NOT_SUPPORTED: ret = -EOPNOTSUPP; break; case RNDIS_STATUS_ADAPTER_NOT_READY: case RNDIS_STATUS_ADAPTER_NOT_OPEN: ret = -EBUSY; break; } return ret; } static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev); union { void *buf; struct rndis_msg_hdr *header; struct rndis_query *get; struct rndis_query_c *get_c; } u; int ret, buflen; buflen = *len + sizeof(*u.get); if (buflen < CONTROL_BUFFER_SIZE) buflen = CONTROL_BUFFER_SIZE; if (buflen > COMMAND_BUFFER_SIZE) { u.buf = kmalloc(buflen, GFP_KERNEL); if (!u.buf) return -ENOMEM; } else { u.buf = priv->command_buffer; } mutex_lock(&priv->command_lock); memset(u.get, 0, sizeof *u.get); u.get->msg_type = RNDIS_MSG_QUERY; u.get->msg_len = cpu_to_le32(sizeof *u.get); u.get->oid = oid; ret = rndis_command(dev, u.header, buflen); if (ret < 0) devdbg(dev, "rndis_query_oid(%s): rndis_command() failed, %d " "(%08x)", oid_to_string(oid), ret, le32_to_cpu(u.get_c->status)); if (ret == 0) { ret = le32_to_cpu(u.get_c->len); *len = (*len > ret) ? ret : *len; memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len); ret = rndis_error_status(u.get_c->status); if (ret < 0) devdbg(dev, "rndis_query_oid(%s): device returned " "error, 0x%08x (%d)", oid_to_string(oid), le32_to_cpu(u.get_c->status), ret); } mutex_unlock(&priv->command_lock); if (u.buf != priv->command_buffer) kfree(u.buf); return ret; } static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev); union { void *buf; struct rndis_msg_hdr *header; struct rndis_set *set; struct rndis_set_c *set_c; } u; int ret, buflen; buflen = len + sizeof(*u.set); if (buflen < CONTROL_BUFFER_SIZE) buflen = CONTROL_BUFFER_SIZE; if (buflen > COMMAND_BUFFER_SIZE) { u.buf = kmalloc(buflen, GFP_KERNEL); if (!u.buf) return -ENOMEM; } else { u.buf = priv->command_buffer; } mutex_lock(&priv->command_lock); memset(u.set, 0, sizeof *u.set); u.set->msg_type = RNDIS_MSG_SET; u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len); u.set->oid = oid; u.set->len = cpu_to_le32(len); u.set->offset = cpu_to_le32(sizeof(*u.set) - 8); u.set->handle = cpu_to_le32(0); memcpy(u.buf + sizeof(*u.set), data, len); ret = rndis_command(dev, u.header, buflen); if (ret < 0) devdbg(dev, "rndis_set_oid(%s): rndis_command() failed, %d " "(%08x)", oid_to_string(oid), ret, le32_to_cpu(u.set_c->status)); if (ret == 0) { ret = rndis_error_status(u.set_c->status); if (ret < 0) devdbg(dev, "rndis_set_oid(%s): device returned error, " "0x%08x (%d)", oid_to_string(oid), le32_to_cpu(u.set_c->status), ret); } mutex_unlock(&priv->command_lock); if (u.buf != priv->command_buffer) kfree(u.buf); return ret; } static int rndis_reset(struct usbnet *usbdev) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct rndis_reset *reset; int ret; mutex_lock(&priv->command_lock); reset = (void *)priv->command_buffer; memset(reset, 0, sizeof(*reset)); reset->msg_type = RNDIS_MSG_RESET; reset->msg_len = cpu_to_le32(sizeof(*reset)); ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE); mutex_unlock(&priv->command_lock); if (ret < 0) return ret; return 0; } /* * Specs say that we can only set config parameters only soon after device * initialization. * value_type: 0 = u32, 2 = unicode string */ static int rndis_set_config_parameter(struct usbnet *dev, char *param, int value_type, void *value) { struct ndis_config_param *infobuf; int value_len, info_len, param_len, ret, i; __le16 *unibuf; __le32 *dst_value; if (value_type == 0) value_len = sizeof(__le32); else if (value_type == 2) value_len = strlen(value) * sizeof(__le16); else return -EINVAL; param_len = strlen(param) * sizeof(__le16); info_len = sizeof(*infobuf) + param_len + value_len; #ifdef DEBUG info_len += 12; #endif infobuf = kmalloc(info_len, GFP_KERNEL); if (!infobuf) return -ENOMEM; #ifdef DEBUG info_len -= 12; /* extra 12 bytes are for padding (debug output) */ memset(infobuf, 0xCC, info_len + 12); #endif if (value_type == 2) devdbg(dev, "setting config parameter: %s, value: %s", param, (u8 *)value); else devdbg(dev, "setting config parameter: %s, value: %d", param, *(u32 *)value); infobuf->name_offs = cpu_to_le32(sizeof(*infobuf)); infobuf->name_length = cpu_to_le32(param_len); infobuf->type = cpu_to_le32(value_type); infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len); infobuf->value_length = cpu_to_le32(value_len); /* simple string to unicode string conversion */ unibuf = (void *)infobuf + sizeof(*infobuf); for (i = 0; i < param_len / sizeof(__le16); i++) unibuf[i] = cpu_to_le16(param[i]); if (value_type == 2) { unibuf = (void *)infobuf + sizeof(*infobuf) + param_len; for (i = 0; i < value_len / sizeof(__le16); i++) unibuf[i] = cpu_to_le16(((u8 *)value)[i]); } else { dst_value = (void *)infobuf + sizeof(*infobuf) + param_len; *dst_value = cpu_to_le32(*(u32 *)value); } #ifdef DEBUG devdbg(dev, "info buffer (len: %d):", info_len); for (i = 0; i < info_len; i += 12) { u32 *tmp = (u32 *)((u8 *)infobuf + i); devdbg(dev, "%08X:%08X:%08X", cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]), cpu_to_be32(tmp[2])); } #endif ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER, infobuf, info_len); if (ret != 0) devdbg(dev, "setting rndis config parameter failed, %d.", ret); kfree(infobuf); return ret; } static int rndis_set_config_parameter_str(struct usbnet *dev, char *param, char *value) { return(rndis_set_config_parameter(dev, param, 2, value)); } /*static int rndis_set_config_parameter_u32(struct usbnet *dev, char *param, u32 value) { return(rndis_set_config_parameter(dev, param, 0, &value)); }*/ /* * data conversion functions */ static int level_to_qual(int level) { int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE); return qual >= 0 ? (qual <= 100 ? qual : 100) : 0; } static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq) { freq->e = 0; freq->i = 0; freq->flags = 0; /* see comment in wireless.h above the "struct iw_freq" * definition for an explanation of this if * NOTE: 1000000 is due to the kHz */ if (dsconfig > 1000000) { freq->m = dsconfig / 10; freq->e = 1; } else freq->m = dsconfig; /* convert from kHz to Hz */ freq->e += 3; } static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig) { if (freq->m < 1000 && freq->e == 0) { if (freq->m >= 1 && freq->m <= 14) *dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000; else return -1; } else { int i; *dsconfig = freq->m; for (i = freq->e; i > 0; i--) *dsconfig *= 10; *dsconfig /= 1000; } return 0; } /* * common functions */ static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index); static int get_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid) { int ret, len; len = sizeof(*ssid); ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len); if (ret != 0) ssid->length = 0; #ifdef DEBUG { unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1]; memcpy(tmp, ssid->essid, le32_to_cpu(ssid->length)); tmp[le32_to_cpu(ssid->length)] = 0; devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret); } #endif return ret; } static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); int ret; ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid)); if (ret == 0) { memcpy(&priv->essid, ssid, sizeof(priv->essid)); priv->radio_on = 1; devdbg(usbdev, "set_essid: radio_on = 1"); } return ret; } static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN]) { int ret, len; len = ETH_ALEN; ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len); if (ret != 0) memset(bssid, 0, ETH_ALEN); return ret; } static int get_association_info(struct usbnet *usbdev, struct ndis_80211_assoc_info *info, int len) { return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION, info, &len); } static int is_associated(struct usbnet *usbdev) { u8 bssid[ETH_ALEN]; int ret; ret = get_bssid(usbdev, bssid); return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0); } static int disassociate(struct usbnet *usbdev, int reset_ssid) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct ndis_80211_ssid ssid; int i, ret = 0; if (priv->radio_on) { ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0); if (ret == 0) { priv->radio_on = 0; devdbg(usbdev, "disassociate: radio_on = 0"); if (reset_ssid) msleep(100); } } /* disassociate causes radio to be turned off; if reset_ssid * is given, set random ssid to enable radio */ if (reset_ssid) { ssid.length = cpu_to_le32(sizeof(ssid.essid)); get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2); ssid.essid[0] = 0x1; ssid.essid[1] = 0xff; for (i = 2; i < sizeof(ssid.essid); i++) ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff); ret = set_essid(usbdev, &ssid); } return ret; } static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); __le32 tmp; int auth_mode, ret; devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x " "keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt); if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) { if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X) auth_mode = NDIS_80211_AUTH_WPA2; else auth_mode = NDIS_80211_AUTH_WPA2_PSK; } else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) { if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X) auth_mode = NDIS_80211_AUTH_WPA; else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK) auth_mode = NDIS_80211_AUTH_WPA_PSK; else auth_mode = NDIS_80211_AUTH_WPA_NONE; } else if (authalg & IW_AUTH_ALG_SHARED_KEY) { if (authalg & IW_AUTH_ALG_OPEN_SYSTEM) auth_mode = NDIS_80211_AUTH_AUTO_SWITCH; else auth_mode = NDIS_80211_AUTH_SHARED; } else auth_mode = NDIS_80211_AUTH_OPEN; tmp = cpu_to_le32(auth_mode); ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp, sizeof(tmp)); if (ret != 0) { devwarn(usbdev, "setting auth mode failed (%08X)", ret); return ret; } priv->wpa_version = wpa_version; priv->wpa_authalg = authalg; return 0; } static int set_priv_filter(struct usbnet *usbdev) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); __le32 tmp; devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version); if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 || priv->wpa_version & IW_AUTH_WPA_VERSION_WPA) tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP); else tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL); return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp, sizeof(tmp)); } static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); __le32 tmp; int encr_mode, ret; devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x", pairwise, groupwise); if (pairwise & IW_AUTH_CIPHER_CCMP) encr_mode = NDIS_80211_ENCR_CCMP_ENABLED; else if (pairwise & IW_AUTH_CIPHER_TKIP) encr_mode = NDIS_80211_ENCR_TKIP_ENABLED; else if (pairwise & (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104)) encr_mode = NDIS_80211_ENCR_WEP_ENABLED; else if (groupwise & IW_AUTH_CIPHER_CCMP) encr_mode = NDIS_80211_ENCR_CCMP_ENABLED; else if (groupwise & IW_AUTH_CIPHER_TKIP) encr_mode = NDIS_80211_ENCR_TKIP_ENABLED; else encr_mode = NDIS_80211_ENCR_DISABLED; tmp = cpu_to_le32(encr_mode); ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp, sizeof(tmp)); if (ret != 0) { devwarn(usbdev, "setting encr mode failed (%08X)", ret); return ret; } priv->wpa_cipher_pair = pairwise; priv->wpa_cipher_group = groupwise; return 0; } static int set_assoc_params(struct usbnet *usbdev) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg); set_priv_filter(usbdev); set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group); return 0; } static int set_infra_mode(struct usbnet *usbdev, int mode) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); __le32 tmp; int ret, i; devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode); tmp = cpu_to_le32(mode); ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp, sizeof(tmp)); if (ret != 0) { devwarn(usbdev, "setting infra mode failed (%08X)", ret); return ret; } /* NDIS drivers clear keys when infrastructure mode is * changed. But Linux tools assume otherwise. So set the * keys */ if (priv->wpa_keymgmt == 0 || priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) { for (i = 0; i < 4; i++) { if (priv->encr_key_len[i] > 0 && !priv->encr_key_wpa[i]) add_wep_key(usbdev, priv->encr_keys[i], priv->encr_key_len[i], i); } } priv->infra_mode = mode; return 0; } static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold) { __le32 tmp; devdbg(usbdev, "set_rts_threshold %i", rts_threshold); if (rts_threshold < 0 || rts_threshold > 2347) rts_threshold = 2347; tmp = cpu_to_le32(rts_threshold); return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp, sizeof(tmp)); } static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold) { __le32 tmp; devdbg(usbdev, "set_frag_threshold %i", frag_threshold); if (frag_threshold < 256 || frag_threshold > 2346) frag_threshold = 2346; tmp = cpu_to_le32(frag_threshold); return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp, sizeof(tmp)); } static void set_default_iw_params(struct usbnet *usbdev) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); priv->wpa_keymgmt = 0; priv->wpa_version = 0; set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA); set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED, IW_AUTH_ALG_OPEN_SYSTEM); set_priv_filter(usbdev); set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE); } static int deauthenticate(struct usbnet *usbdev) { int ret; ret = disassociate(usbdev, 1); set_default_iw_params(usbdev); return ret; } /* index must be 0 - N, as per NDIS */ static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct ndis_80211_wep_key ndis_key; int ret; if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4) return -EINVAL; memset(&ndis_key, 0, sizeof(ndis_key)); ndis_key.size = cpu_to_le32(sizeof(ndis_key)); ndis_key.length = cpu_to_le32(key_len); ndis_key.index = cpu_to_le32(index); memcpy(&ndis_key.material, key, key_len); if (index == priv->encr_tx_key_index) { ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY; ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104, IW_AUTH_CIPHER_NONE); if (ret) devwarn(usbdev, "encryption couldn't be enabled (%08X)", ret); } ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key, sizeof(ndis_key)); if (ret != 0) { devwarn(usbdev, "adding encryption key %d failed (%08X)", index+1, ret); return ret; } priv->encr_key_len[index] = key_len; priv->encr_key_wpa[index] = 0; memcpy(&priv->encr_keys[index], key, key_len); return 0; } static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len, int index, const struct sockaddr *addr, const u8 *rx_seq, int alg, int flags) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct ndis_80211_key ndis_key; int ret; if (index < 0 || index >= 4) return -EINVAL; if (key_len > sizeof(ndis_key.material) || key_len < 0) return -EINVAL; if ((flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) && !rx_seq) return -EINVAL; if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !addr) return -EINVAL; devdbg(usbdev, "add_wpa_key(%i): flags:%i%i%i", index, !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY), !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY), !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)); memset(&ndis_key, 0, sizeof(ndis_key)); ndis_key.size = cpu_to_le32(sizeof(ndis_key) - sizeof(ndis_key.material) + key_len); ndis_key.length = cpu_to_le32(key_len); ndis_key.index = cpu_to_le32(index) | flags; if (alg == IW_ENCODE_ALG_TKIP && key_len == 32) { /* wpa_supplicant gives us the Michael MIC RX/TX keys in * different order than NDIS spec, so swap the order here. */ memcpy(ndis_key.material, key, 16); memcpy(ndis_key.material + 16, key + 24, 8); memcpy(ndis_key.material + 24, key + 16, 8); } else memcpy(ndis_key.material, key, key_len); if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) memcpy(ndis_key.rsc, rx_seq, 6); if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) { /* pairwise key */ memcpy(ndis_key.bssid, addr->sa_data, ETH_ALEN); } else { /* group key */ if (priv->infra_mode == NDIS_80211_INFRA_ADHOC) memset(ndis_key.bssid, 0xff, ETH_ALEN); else get_bssid(usbdev, ndis_key.bssid); } ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key, le32_to_cpu(ndis_key.size)); devdbg(usbdev, "add_wpa_key: OID_802_11_ADD_KEY -> %08X", ret); if (ret != 0) return ret; priv->encr_key_len[index] = key_len; priv->encr_key_wpa[index] = 1; if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY) priv->encr_tx_key_index = index; return 0; } /* remove_key is for both wep and wpa */ static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN]) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct ndis_80211_remove_key remove_key; __le32 keyindex; int ret; if (priv->encr_key_len[index] == 0) return 0; priv->encr_key_len[index] = 0; priv->encr_key_wpa[index] = 0; memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index])); if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP || priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP || priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP || priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) { remove_key.size = cpu_to_le32(sizeof(remove_key)); remove_key.index = cpu_to_le32(index); if (bssid) { /* pairwise key */ if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0) remove_key.index |= NDIS_80211_ADDKEY_PAIRWISE_KEY; memcpy(remove_key.bssid, bssid, sizeof(remove_key.bssid)); } else memset(remove_key.bssid, 0xff, sizeof(remove_key.bssid)); ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key, sizeof(remove_key)); if (ret != 0) return ret; } else { keyindex = cpu_to_le32(index); ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex, sizeof(keyindex)); if (ret != 0) { devwarn(usbdev, "removing encryption key %d failed (%08X)", index, ret); return ret; } } /* if it is transmit key, disable encryption */ if (index == priv->encr_tx_key_index) set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE); return 0; } static void set_multicast_list(struct usbnet *usbdev) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct dev_mc_list *mclist; __le32 filter; int ret, i, size; char *buf; filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST; if (usbdev->net->flags & IFF_PROMISC) { filter |= RNDIS_PACKET_TYPE_PROMISCUOUS | RNDIS_PACKET_TYPE_ALL_LOCAL; } else if (usbdev->net->flags & IFF_ALLMULTI || usbdev->net->mc_count > priv->multicast_size) { filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST; } else if (usbdev->net->mc_count > 0) { size = min(priv->multicast_size, usbdev->net->mc_count); buf = kmalloc(size * ETH_ALEN, GFP_KERNEL); if (!buf) { devwarn(usbdev, "couldn't alloc %d bytes of memory", size * ETH_ALEN); return; } mclist = usbdev->net->mc_list; for (i = 0; i < size && mclist; mclist = mclist->next) { if (mclist->dmi_addrlen != ETH_ALEN) continue; memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN); i++; } ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf, i * ETH_ALEN); if (ret == 0 && i > 0) filter |= RNDIS_PACKET_TYPE_MULTICAST; else filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST; devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d", i, priv->multicast_size, ret); kfree(buf); } ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter, sizeof(filter)); if (ret < 0) { devwarn(usbdev, "couldn't set packet filter: %08x", le32_to_cpu(filter)); } devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d", le32_to_cpu(filter), ret); } /* * cfg80211 ops */ static int rndis_change_virtual_intf(struct wiphy *wiphy, struct net_device *dev, enum nl80211_iftype type, u32 *flags, struct vif_params *params) { struct usbnet *usbdev = netdev_priv(dev); int mode; switch (type) { case NL80211_IFTYPE_ADHOC: mode = NDIS_80211_INFRA_ADHOC; break; case NL80211_IFTYPE_STATION: mode = NDIS_80211_INFRA_INFRA; break; default: return -EINVAL; } return set_infra_mode(usbdev, mode); } static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed) { struct rndis_wlan_private *priv = wiphy_priv(wiphy); struct usbnet *usbdev = priv->usbdev; int err; if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { err = set_frag_threshold(usbdev, wiphy->frag_threshold); if (err < 0) return err; } if (changed & WIPHY_PARAM_RTS_THRESHOLD) { err = set_rts_threshold(usbdev, wiphy->rts_threshold); if (err < 0) return err; } return 0; } static int rndis_set_tx_power(struct wiphy *wiphy, enum tx_power_setting type, int dbm) { struct rndis_wlan_private *priv = wiphy_priv(wiphy); struct usbnet *usbdev = priv->usbdev; devdbg(usbdev, "rndis_set_tx_power type:0x%x dbm:%i", type, dbm); /* Device doesn't support changing txpower after initialization, only * turn off/on radio. Support 'auto' mode and setting same dBm that is * currently used. */ if (type == TX_POWER_AUTOMATIC || dbm == get_bcm4320_power_dbm(priv)) { if (!priv->radio_on) disassociate(usbdev, 1); /* turn on radio */ return 0; } return -ENOTSUPP; } static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm) { struct rndis_wlan_private *priv = wiphy_priv(wiphy); struct usbnet *usbdev = priv->usbdev; *dbm = get_bcm4320_power_dbm(priv); devdbg(usbdev, "rndis_get_tx_power dbm:%i", *dbm); return 0; } #define SCAN_DELAY_JIFFIES (HZ) static int rndis_scan(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_scan_request *request) { struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); int ret; __le32 tmp; devdbg(usbdev, "cfg80211.scan"); if (!request) return -EINVAL; if (priv->scan_request && priv->scan_request != request) return -EBUSY; priv->scan_request = request; tmp = cpu_to_le32(1); ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp, sizeof(tmp)); if (ret == 0) { /* Wait before retrieving scan results from device */ queue_delayed_work(priv->workqueue, &priv->scan_work, SCAN_DELAY_JIFFIES); } return ret; } static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev, struct ndis_80211_bssid_ex *bssid) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct ieee80211_channel *channel; s32 signal; u64 timestamp; u16 capability; u16 beacon_interval; struct ndis_80211_fixed_ies *fixed; int ie_len, bssid_len; u8 *ie; /* parse bssid structure */ bssid_len = le32_to_cpu(bssid->length); if (bssid_len < sizeof(struct ndis_80211_bssid_ex) + sizeof(struct ndis_80211_fixed_ies)) return NULL; fixed = (struct ndis_80211_fixed_ies *)bssid->ies; ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies)); ie_len = min(bssid_len - (int)sizeof(*bssid), (int)le32_to_cpu(bssid->ie_length)); ie_len -= sizeof(struct ndis_80211_fixed_ies); if (ie_len < 0) return NULL; /* extract data for cfg80211_inform_bss */ channel = ieee80211_get_channel(priv->wdev.wiphy, KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config))); if (!channel) return NULL; signal = level_to_qual(le32_to_cpu(bssid->rssi)); timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp); capability = le16_to_cpu(fixed->capabilities); beacon_interval = le16_to_cpu(fixed->beacon_interval); return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac, timestamp, capability, beacon_interval, ie, ie_len, signal, GFP_KERNEL); } static int rndis_check_bssid_list(struct usbnet *usbdev) { void *buf = NULL; struct ndis_80211_bssid_list_ex *bssid_list; struct ndis_80211_bssid_ex *bssid; int ret = -EINVAL, len, count, bssid_len; devdbg(usbdev, "check_bssid_list"); len = CONTROL_BUFFER_SIZE; buf = kmalloc(len, GFP_KERNEL); if (!buf) { ret = -ENOMEM; goto out; } ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len); if (ret != 0) goto out; bssid_list = buf; bssid = bssid_list->bssid; bssid_len = le32_to_cpu(bssid->length); count = le32_to_cpu(bssid_list->num_items); devdbg(usbdev, "check_bssid_list: %d BSSIDs found", count); while (count && ((void *)bssid + bssid_len) <= (buf + len)) { rndis_bss_info_update(usbdev, bssid); bssid = (void *)bssid + bssid_len; bssid_len = le32_to_cpu(bssid->length); count--; } out: kfree(buf); return ret; } static void rndis_get_scan_results(struct work_struct *work) { struct rndis_wlan_private *priv = container_of(work, struct rndis_wlan_private, scan_work.work); struct usbnet *usbdev = priv->usbdev; int ret; devdbg(usbdev, "get_scan_results"); if (!priv->scan_request) return; ret = rndis_check_bssid_list(usbdev); cfg80211_scan_done(priv->scan_request, ret < 0); priv->scan_request = NULL; } /* * wireless extension handlers */ static int rndis_iw_commit(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { /* dummy op */ return 0; } static int rndis_iw_set_essid(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *essid) { struct ndis_80211_ssid ssid; int length = wrqu->essid.length; struct usbnet *usbdev = netdev_priv(dev); devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'", wrqu->essid.flags, wrqu->essid.length, essid); if (length > NDIS_802_11_LENGTH_SSID) length = NDIS_802_11_LENGTH_SSID; ssid.length = cpu_to_le32(length); if (length > 0) memcpy(ssid.essid, essid, length); else memset(ssid.essid, 0, NDIS_802_11_LENGTH_SSID); set_assoc_params(usbdev); if (!wrqu->essid.flags || length == 0) return disassociate(usbdev, 1); else return set_essid(usbdev, &ssid); } static int rndis_iw_get_essid(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *essid) { struct ndis_80211_ssid ssid; struct usbnet *usbdev = netdev_priv(dev); int ret; ret = get_essid(usbdev, &ssid); if (ret == 0 && le32_to_cpu(ssid.length) > 0) { wrqu->essid.flags = 1; wrqu->essid.length = le32_to_cpu(ssid.length); memcpy(essid, ssid.essid, wrqu->essid.length); essid[wrqu->essid.length] = 0; } else { memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID)); wrqu->essid.flags = 0; wrqu->essid.length = 0; } devdbg(usbdev, "SIOCGIWESSID: %s", essid); return ret; } static int rndis_iw_get_bssid(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct usbnet *usbdev = netdev_priv(dev); unsigned char bssid[ETH_ALEN]; int ret; ret = get_bssid(usbdev, bssid); if (ret == 0) devdbg(usbdev, "SIOCGIWAP: %pM", bssid); else devdbg(usbdev, "SIOCGIWAP: "); wrqu->ap_addr.sa_family = ARPHRD_ETHER; memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN); return ret; } static int rndis_iw_set_bssid(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct usbnet *usbdev = netdev_priv(dev); u8 *bssid = (u8 *)wrqu->ap_addr.sa_data; int ret; devdbg(usbdev, "SIOCSIWAP: %pM", bssid); ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN); /* user apps may set ap's mac address, which is not required; * they may fail to work if this function fails, so return * success */ if (ret) devwarn(usbdev, "setting AP mac address failed (%08X)", ret); return 0; } static int rndis_iw_set_auth(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct iw_param *p = &wrqu->param; struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); int ret = -ENOTSUPP; switch (p->flags & IW_AUTH_INDEX) { case IW_AUTH_WPA_VERSION: devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value); priv->wpa_version = p->value; ret = 0; break; case IW_AUTH_CIPHER_PAIRWISE: devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value); priv->wpa_cipher_pair = p->value; ret = 0; break; case IW_AUTH_CIPHER_GROUP: devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value); priv->wpa_cipher_group = p->value; ret = 0; break; case IW_AUTH_KEY_MGMT: devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value); priv->wpa_keymgmt = p->value; ret = 0; break; case IW_AUTH_TKIP_COUNTERMEASURES: devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x", p->value); ret = 0; break; case IW_AUTH_DROP_UNENCRYPTED: devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value); ret = 0; break; case IW_AUTH_80211_AUTH_ALG: devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value); priv->wpa_authalg = p->value; ret = 0; break; case IW_AUTH_WPA_ENABLED: devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value); if (wrqu->param.value) deauthenticate(usbdev); ret = 0; break; case IW_AUTH_RX_UNENCRYPTED_EAPOL: devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x", p->value); ret = 0; break; case IW_AUTH_ROAMING_CONTROL: devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value); ret = 0; break; case IW_AUTH_PRIVACY_INVOKED: devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d", wrqu->param.flags & IW_AUTH_INDEX); return -EOPNOTSUPP; default: devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN %08x, %08x", p->flags & IW_AUTH_INDEX, p->value); } return ret; } static int rndis_iw_get_auth(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct iw_param *p = &wrqu->param; struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); switch (p->flags & IW_AUTH_INDEX) { case IW_AUTH_WPA_VERSION: p->value = priv->wpa_version; break; case IW_AUTH_CIPHER_PAIRWISE: p->value = priv->wpa_cipher_pair; break; case IW_AUTH_CIPHER_GROUP: p->value = priv->wpa_cipher_group; break; case IW_AUTH_KEY_MGMT: p->value = priv->wpa_keymgmt; break; case IW_AUTH_80211_AUTH_ALG: p->value = priv->wpa_authalg; break; default: devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d", wrqu->param.flags & IW_AUTH_INDEX); return -EOPNOTSUPP; } return 0; } static int rndis_iw_set_encode(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); int ret, index, key_len; u8 *key; index = (wrqu->encoding.flags & IW_ENCODE_INDEX); /* iwconfig gives index as 1 - N */ if (index > 0) index--; else index = priv->encr_tx_key_index; if (index < 0 || index >= 4) { devwarn(usbdev, "encryption index out of range (%u)", index); return -EINVAL; } /* remove key if disabled */ if (wrqu->data.flags & IW_ENCODE_DISABLED) { if (remove_key(usbdev, index, NULL)) return -EINVAL; else return 0; } /* global encryption state (for all keys) */ if (wrqu->data.flags & IW_ENCODE_OPEN) ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED, IW_AUTH_ALG_OPEN_SYSTEM); else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/ ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED, IW_AUTH_ALG_SHARED_KEY); if (ret != 0) return ret; if (wrqu->data.length > 0) { key_len = wrqu->data.length; key = extra; } else { /* must be set as tx key */ if (priv->encr_key_len[index] == 0) return -EINVAL; key_len = priv->encr_key_len[index]; key = priv->encr_keys[index]; priv->encr_tx_key_index = index; } if (add_wep_key(usbdev, key, key_len, index) != 0) return -EINVAL; if (index == priv->encr_tx_key_index) /* ndis drivers want essid to be set after setting encr */ set_essid(usbdev, &priv->essid); return 0; } static int rndis_iw_set_encode_ext(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); int keyidx, flags; keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX; /* iwconfig gives index as 1 - N */ if (keyidx) keyidx--; else keyidx = priv->encr_tx_key_index; if (keyidx < 0 || keyidx >= 4) return -EINVAL; if (ext->alg == WPA_ALG_WEP) { if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) priv->encr_tx_key_index = keyidx; return add_wep_key(usbdev, ext->key, ext->key_len, keyidx); } if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) || ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0) return remove_key(usbdev, keyidx, NULL); flags = 0; if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ; if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)) flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY; if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) flags |= NDIS_80211_ADDKEY_TRANSMIT_KEY; return add_wpa_key(usbdev, ext->key, ext->key_len, keyidx, &ext->addr, ext->rx_seq, ext->alg, flags); } static int rndis_iw_set_genie(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); int ret = 0; #ifdef DEBUG int j; u8 *gie = extra; for (j = 0; j < wrqu->data.length; j += 8) devdbg(usbdev, "SIOCSIWGENIE %04x - " "%02x %02x %02x %02x %02x %02x %02x %02x", j, gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3], gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]); #endif /* clear existing IEs */ if (priv->wpa_ie_len) { kfree(priv->wpa_ie); priv->wpa_ie_len = 0; } /* set new IEs */ priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL); if (priv->wpa_ie) { priv->wpa_ie_len = wrqu->data.length; memcpy(priv->wpa_ie, extra, priv->wpa_ie_len); } else ret = -ENOMEM; return ret; } static int rndis_iw_get_genie(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); devdbg(usbdev, "SIOCGIWGENIE"); if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) { wrqu->data.length = 0; return 0; } if (wrqu->data.length < priv->wpa_ie_len) return -E2BIG; wrqu->data.length = priv->wpa_ie_len; memcpy(extra, priv->wpa_ie, priv->wpa_ie_len); return 0; } static int rndis_iw_set_freq(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct usbnet *usbdev = netdev_priv(dev); struct ndis_80211_conf config; unsigned int dsconfig; int len, ret; /* this OID is valid only when not associated */ if (is_associated(usbdev)) return 0; dsconfig = 0; if (freq_to_dsconfig(&wrqu->freq, &dsconfig)) return -EINVAL; len = sizeof(config); ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len); if (ret != 0) { devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed"); return 0; } config.ds_config = cpu_to_le32(dsconfig); devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e); return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config, sizeof(config)); } static int rndis_iw_get_freq(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct usbnet *usbdev = netdev_priv(dev); struct ndis_80211_conf config; int len, ret; len = sizeof(config); ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len); if (ret == 0) dsconfig_to_freq(le32_to_cpu(config.ds_config), &wrqu->freq); devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m); return ret; } static int rndis_iw_get_rate(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct usbnet *usbdev = netdev_priv(dev); __le32 tmp; int ret, len; len = sizeof(tmp); ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len); if (ret == 0) { wrqu->bitrate.value = le32_to_cpu(tmp) * 100; wrqu->bitrate.disabled = 0; wrqu->bitrate.flags = 1; } return ret; } static int rndis_iw_set_mlme(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct iw_mlme *mlme = (struct iw_mlme *)extra; unsigned char bssid[ETH_ALEN]; get_bssid(usbdev, bssid); if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN)) return -EINVAL; switch (mlme->cmd) { case IW_MLME_DEAUTH: return deauthenticate(usbdev); case IW_MLME_DISASSOC: return disassociate(usbdev, priv->radio_on); default: return -EOPNOTSUPP; } return 0; } static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev) { struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); unsigned long flags; spin_lock_irqsave(&priv->stats_lock, flags); memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats)); spin_unlock_irqrestore(&priv->stats_lock, flags); return &priv->iwstats; } #define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT] static const iw_handler rndis_iw_handler[] = { IW_IOCTL(SIOCSIWCOMMIT) = rndis_iw_commit, IW_IOCTL(SIOCGIWNAME) = (iw_handler) cfg80211_wext_giwname, IW_IOCTL(SIOCSIWFREQ) = rndis_iw_set_freq, IW_IOCTL(SIOCGIWFREQ) = rndis_iw_get_freq, IW_IOCTL(SIOCSIWMODE) = (iw_handler) cfg80211_wext_siwmode, IW_IOCTL(SIOCGIWMODE) = (iw_handler) cfg80211_wext_giwmode, IW_IOCTL(SIOCGIWRANGE) = (iw_handler) cfg80211_wext_giwrange, IW_IOCTL(SIOCSIWAP) = rndis_iw_set_bssid, IW_IOCTL(SIOCGIWAP) = rndis_iw_get_bssid, IW_IOCTL(SIOCSIWSCAN) = (iw_handler) cfg80211_wext_siwscan, IW_IOCTL(SIOCGIWSCAN) = (iw_handler) cfg80211_wext_giwscan, IW_IOCTL(SIOCSIWESSID) = rndis_iw_set_essid, IW_IOCTL(SIOCGIWESSID) = rndis_iw_get_essid, IW_IOCTL(SIOCGIWRATE) = rndis_iw_get_rate, IW_IOCTL(SIOCSIWRTS) = (iw_handler) cfg80211_wext_siwrts, IW_IOCTL(SIOCGIWRTS) = (iw_handler) cfg80211_wext_giwrts, IW_IOCTL(SIOCSIWFRAG) = (iw_handler) cfg80211_wext_siwfrag, IW_IOCTL(SIOCGIWFRAG) = (iw_handler) cfg80211_wext_giwfrag, IW_IOCTL(SIOCSIWTXPOW) = (iw_handler) cfg80211_wext_siwtxpower, IW_IOCTL(SIOCGIWTXPOW) = (iw_handler) cfg80211_wext_giwtxpower, IW_IOCTL(SIOCSIWENCODE) = rndis_iw_set_encode, IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext, IW_IOCTL(SIOCSIWAUTH) = rndis_iw_set_auth, IW_IOCTL(SIOCGIWAUTH) = rndis_iw_get_auth, IW_IOCTL(SIOCSIWGENIE) = rndis_iw_set_genie, IW_IOCTL(SIOCGIWGENIE) = rndis_iw_get_genie, IW_IOCTL(SIOCSIWMLME) = rndis_iw_set_mlme, }; static const iw_handler rndis_wlan_private_handler[] = { }; static const struct iw_priv_args rndis_wlan_private_args[] = { }; static const struct iw_handler_def rndis_iw_handlers = { .num_standard = ARRAY_SIZE(rndis_iw_handler), .num_private = ARRAY_SIZE(rndis_wlan_private_handler), .num_private_args = ARRAY_SIZE(rndis_wlan_private_args), .standard = (iw_handler *)rndis_iw_handler, .private = (iw_handler *)rndis_wlan_private_handler, .private_args = (struct iw_priv_args *)rndis_wlan_private_args, .get_wireless_stats = rndis_get_wireless_stats, }; static void rndis_wlan_worker(struct work_struct *work) { struct rndis_wlan_private *priv = container_of(work, struct rndis_wlan_private, work); struct usbnet *usbdev = priv->usbdev; union iwreq_data evt; unsigned char bssid[ETH_ALEN]; struct ndis_80211_assoc_info *info; int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32; int ret, offset; if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) { netif_carrier_on(usbdev->net); info = kzalloc(assoc_size, GFP_KERNEL); if (!info) goto get_bssid; /* Get association info IEs from device and send them back to * userspace. */ ret = get_association_info(usbdev, info, assoc_size); if (!ret) { evt.data.length = le32_to_cpu(info->req_ie_length); if (evt.data.length > 0) { offset = le32_to_cpu(info->offset_req_ies); wireless_send_event(usbdev->net, IWEVASSOCREQIE, &evt, (char *)info + offset); } evt.data.length = le32_to_cpu(info->resp_ie_length); if (evt.data.length > 0) { offset = le32_to_cpu(info->offset_resp_ies); wireless_send_event(usbdev->net, IWEVASSOCRESPIE, &evt, (char *)info + offset); } } kfree(info); get_bssid: ret = get_bssid(usbdev, bssid); if (!ret) { evt.data.flags = 0; evt.data.length = 0; memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN); wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL); } } if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) { netif_carrier_off(usbdev->net); evt.data.flags = 0; evt.data.length = 0; memset(evt.ap_addr.sa_data, 0, ETH_ALEN); wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL); } if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending)) set_multicast_list(usbdev); } static void rndis_wlan_set_multicast_list(struct net_device *dev) { struct usbnet *usbdev = netdev_priv(dev); struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending)) return; set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending); queue_work(priv->workqueue, &priv->work); } static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); struct rndis_indicate *msg = ind; /* queue work to avoid recursive calls into rndis_command */ switch (msg->status) { case RNDIS_STATUS_MEDIA_CONNECT: devinfo(usbdev, "media connect"); set_bit(WORK_LINK_UP, &priv->work_pending); queue_work(priv->workqueue, &priv->work); break; case RNDIS_STATUS_MEDIA_DISCONNECT: devinfo(usbdev, "media disconnect"); set_bit(WORK_LINK_DOWN, &priv->work_pending); queue_work(priv->workqueue, &priv->work); break; default: devinfo(usbdev, "indication: 0x%08x", le32_to_cpu(msg->status)); break; } } static int rndis_wlan_get_caps(struct usbnet *usbdev) { struct { __le32 num_items; __le32 items[8]; } networks_supported; int len, retval, i, n; struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); /* determine supported modes */ len = sizeof(networks_supported); retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED, &networks_supported, &len); if (retval >= 0) { n = le32_to_cpu(networks_supported.num_items); if (n > 8) n = 8; for (i = 0; i < n; i++) { switch (le32_to_cpu(networks_supported.items[i])) { case NDIS_80211_TYPE_FREQ_HOP: case NDIS_80211_TYPE_DIRECT_SEQ: priv->caps |= CAP_MODE_80211B; break; case NDIS_80211_TYPE_OFDM_A: priv->caps |= CAP_MODE_80211A; break; case NDIS_80211_TYPE_OFDM_G: priv->caps |= CAP_MODE_80211G; break; } } } return retval; } #define STATS_UPDATE_JIFFIES (HZ) static void rndis_update_wireless_stats(struct work_struct *work) { struct rndis_wlan_private *priv = container_of(work, struct rndis_wlan_private, stats_work.work); struct usbnet *usbdev = priv->usbdev; struct iw_statistics iwstats; __le32 rssi, tmp; int len, ret, j; unsigned long flags; int update_jiffies = STATS_UPDATE_JIFFIES; void *buf; spin_lock_irqsave(&priv->stats_lock, flags); memcpy(&iwstats, &priv->privstats, sizeof(iwstats)); spin_unlock_irqrestore(&priv->stats_lock, flags); /* only update stats when connected */ if (!is_associated(usbdev)) { iwstats.qual.qual = 0; iwstats.qual.level = 0; iwstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID | IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID; goto end; } len = sizeof(rssi); ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len); devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret, le32_to_cpu(rssi)); if (ret == 0) { memset(&iwstats.qual, 0, sizeof(iwstats.qual)); iwstats.qual.qual = level_to_qual(le32_to_cpu(rssi)); iwstats.qual.level = level_to_qual(le32_to_cpu(rssi)); iwstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID; } memset(&iwstats.discard, 0, sizeof(iwstats.discard)); len = sizeof(tmp); ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len); if (ret == 0) iwstats.discard.misc += le32_to_cpu(tmp); len = sizeof(tmp); ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len); if (ret == 0) iwstats.discard.misc += le32_to_cpu(tmp); len = sizeof(tmp); ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len); if (ret == 0) iwstats.discard.misc += le32_to_cpu(tmp); /* Workaround transfer stalls on poor quality links. * TODO: find right way to fix these stalls (as stalls do not happen * with ndiswrapper/windows driver). */ if (iwstats.qual.qual <= 25) { /* Decrease stats worker interval to catch stalls. * faster. Faster than 400-500ms causes packet loss, * Slower doesn't catch stalls fast enough. */ j = msecs_to_jiffies(priv->param_workaround_interval); if (j > STATS_UPDATE_JIFFIES) j = STATS_UPDATE_JIFFIES; else if (j <= 0) j = 1; update_jiffies = j; /* Send scan OID. Use of both OIDs is required to get device * working. */ tmp = cpu_to_le32(1); rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp, sizeof(tmp)); len = CONTROL_BUFFER_SIZE; buf = kmalloc(len, GFP_KERNEL); if (!buf) goto end; rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len); kfree(buf); } end: spin_lock_irqsave(&priv->stats_lock, flags); memcpy(&priv->privstats, &iwstats, sizeof(iwstats)); spin_unlock_irqrestore(&priv->stats_lock, flags); if (update_jiffies >= HZ) update_jiffies = round_jiffies_relative(update_jiffies); else { j = round_jiffies_relative(update_jiffies); if (abs(j - update_jiffies) <= 10) update_jiffies = j; } queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies); } static int bcm4320a_early_init(struct usbnet *usbdev) { /* bcm4320a doesn't handle configuration parameters well. Try * set any and you get partially zeroed mac and broken device. */ return 0; } static int bcm4320b_early_init(struct usbnet *usbdev) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); char buf[8]; /* Early initialization settings, setting these won't have effect * if called after generic_rndis_bind(). */ priv->param_country[0] = modparam_country[0]; priv->param_country[1] = modparam_country[1]; priv->param_country[2] = 0; priv->param_frameburst = modparam_frameburst; priv->param_afterburner = modparam_afterburner; priv->param_power_save = modparam_power_save; priv->param_power_output = modparam_power_output; priv->param_roamtrigger = modparam_roamtrigger; priv->param_roamdelta = modparam_roamdelta; priv->param_country[0] = toupper(priv->param_country[0]); priv->param_country[1] = toupper(priv->param_country[1]); /* doesn't support EU as country code, use FI instead */ if (!strcmp(priv->param_country, "EU")) strcpy(priv->param_country, "FI"); if (priv->param_power_save < 0) priv->param_power_save = 0; else if (priv->param_power_save > 2) priv->param_power_save = 2; if (priv->param_power_output < 0) priv->param_power_output = 0; else if (priv->param_power_output > 3) priv->param_power_output = 3; if (priv->param_roamtrigger < -80) priv->param_roamtrigger = -80; else if (priv->param_roamtrigger > -60) priv->param_roamtrigger = -60; if (priv->param_roamdelta < 0) priv->param_roamdelta = 0; else if (priv->param_roamdelta > 2) priv->param_roamdelta = 2; if (modparam_workaround_interval < 0) priv->param_workaround_interval = 500; else priv->param_workaround_interval = modparam_workaround_interval; rndis_set_config_parameter_str(usbdev, "Country", priv->param_country); rndis_set_config_parameter_str(usbdev, "FrameBursting", priv->param_frameburst ? "1" : "0"); rndis_set_config_parameter_str(usbdev, "Afterburner", priv->param_afterburner ? "1" : "0"); sprintf(buf, "%d", priv->param_power_save); rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf); sprintf(buf, "%d", priv->param_power_output); rndis_set_config_parameter_str(usbdev, "PwrOut", buf); sprintf(buf, "%d", priv->param_roamtrigger); rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf); sprintf(buf, "%d", priv->param_roamdelta); rndis_set_config_parameter_str(usbdev, "RoamDelta", buf); return 0; } /* same as rndis_netdev_ops but with local multicast handler */ static const struct net_device_ops rndis_wlan_netdev_ops = { .ndo_open = usbnet_open, .ndo_stop = usbnet_stop, .ndo_start_xmit = usbnet_start_xmit, .ndo_tx_timeout = usbnet_tx_timeout, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, .ndo_set_multicast_list = rndis_wlan_set_multicast_list, }; static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf) { struct wiphy *wiphy; struct rndis_wlan_private *priv; int retval, len; __le32 tmp; /* allocate wiphy and rndis private data * NOTE: We only support a single virtual interface, so wiphy * and wireless_dev are somewhat synonymous for this device. */ wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private)); if (!wiphy) return -ENOMEM; priv = wiphy_priv(wiphy); usbdev->net->ieee80211_ptr = &priv->wdev; priv->wdev.wiphy = wiphy; priv->wdev.iftype = NL80211_IFTYPE_STATION; /* These have to be initialized before calling generic_rndis_bind(). * Otherwise we'll be in big trouble in rndis_wlan_early_init(). */ usbdev->driver_priv = priv; usbdev->net->wireless_handlers = &rndis_iw_handlers; priv->usbdev = usbdev; mutex_init(&priv->command_lock); spin_lock_init(&priv->stats_lock); /* because rndis_command() sleeps we need to use workqueue */ priv->workqueue = create_singlethread_workqueue("rndis_wlan"); INIT_WORK(&priv->work, rndis_wlan_worker); INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats); INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results); /* try bind rndis_host */ retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS); if (retval < 0) goto fail; /* generic_rndis_bind set packet filter to multicast_all+ * promisc mode which doesn't work well for our devices (device * picks up rssi to closest station instead of to access point). * * rndis_host wants to avoid all OID as much as possible * so do promisc/multicast handling in rndis_wlan. */ usbdev->net->netdev_ops = &rndis_wlan_netdev_ops; tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST; retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp, sizeof(tmp)); len = sizeof(tmp); retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp, &len); priv->multicast_size = le32_to_cpu(tmp); if (retval < 0 || priv->multicast_size < 0) priv->multicast_size = 0; if (priv->multicast_size > 0) usbdev->net->flags |= IFF_MULTICAST; else usbdev->net->flags &= ~IFF_MULTICAST; priv->iwstats.qual.qual = 0; priv->iwstats.qual.level = 0; priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID | IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID; /* fill-out wiphy structure and register w/ cfg80211 */ memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN); wiphy->privid = rndis_wiphy_privid; wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); wiphy->max_scan_ssids = 1; /* TODO: fill-out band information based on priv->caps */ rndis_wlan_get_caps(usbdev); memcpy(priv->channels, rndis_channels, sizeof(rndis_channels)); memcpy(priv->rates, rndis_rates, sizeof(rndis_rates)); priv->band.channels = priv->channels; priv->band.n_channels = ARRAY_SIZE(rndis_channels); priv->band.bitrates = priv->rates; priv->band.n_bitrates = ARRAY_SIZE(rndis_rates); wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; set_wiphy_dev(wiphy, &usbdev->udev->dev); if (wiphy_register(wiphy)) { retval = -ENODEV; goto fail; } set_default_iw_params(usbdev); /* set default rts/frag */ rndis_set_wiphy_params(wiphy, WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD); /* turn radio on */ priv->radio_on = 1; disassociate(usbdev, 1); netif_carrier_off(usbdev->net); return 0; fail: cancel_delayed_work_sync(&priv->stats_work); cancel_delayed_work_sync(&priv->scan_work); cancel_work_sync(&priv->work); flush_workqueue(priv->workqueue); destroy_workqueue(priv->workqueue); wiphy_free(wiphy); return retval; } static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); /* turn radio off */ disassociate(usbdev, 0); cancel_delayed_work_sync(&priv->stats_work); cancel_delayed_work_sync(&priv->scan_work); cancel_work_sync(&priv->work); flush_workqueue(priv->workqueue); destroy_workqueue(priv->workqueue); if (priv && priv->wpa_ie_len) kfree(priv->wpa_ie); rndis_unbind(usbdev, intf); wiphy_unregister(priv->wdev.wiphy); wiphy_free(priv->wdev.wiphy); } static int rndis_wlan_reset(struct usbnet *usbdev) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); int retval; devdbg(usbdev, "rndis_wlan_reset"); retval = rndis_reset(usbdev); if (retval) devwarn(usbdev, "rndis_reset() failed: %d", retval); /* rndis_reset cleared multicast list, so restore here. (set_multicast_list() also turns on current packet filter) */ set_multicast_list(usbdev); queue_delayed_work(priv->workqueue, &priv->stats_work, round_jiffies_relative(STATS_UPDATE_JIFFIES)); return deauthenticate(usbdev); } static int rndis_wlan_stop(struct usbnet *usbdev) { struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); int retval; __le32 filter; devdbg(usbdev, "rndis_wlan_stop"); retval = disassociate(usbdev, 0); priv->work_pending = 0; cancel_delayed_work_sync(&priv->stats_work); cancel_delayed_work_sync(&priv->scan_work); cancel_work_sync(&priv->work); flush_workqueue(priv->workqueue); if (priv->scan_request) { cfg80211_scan_done(priv->scan_request, true); priv->scan_request = NULL; } /* Set current packet filter zero to block receiving data packets from device. */ filter = 0; rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter, sizeof(filter)); return retval; } static const struct driver_info bcm4320b_info = { .description = "Wireless RNDIS device, BCM4320b based", .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT | FLAG_AVOID_UNLINK_URBS, .bind = rndis_wlan_bind, .unbind = rndis_wlan_unbind, .status = rndis_status, .rx_fixup = rndis_rx_fixup, .tx_fixup = rndis_tx_fixup, .reset = rndis_wlan_reset, .stop = rndis_wlan_stop, .early_init = bcm4320b_early_init, .indication = rndis_wlan_indication, }; static const struct driver_info bcm4320a_info = { .description = "Wireless RNDIS device, BCM4320a based", .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT | FLAG_AVOID_UNLINK_URBS, .bind = rndis_wlan_bind, .unbind = rndis_wlan_unbind, .status = rndis_status, .rx_fixup = rndis_rx_fixup, .tx_fixup = rndis_tx_fixup, .reset = rndis_wlan_reset, .stop = rndis_wlan_stop, .early_init = bcm4320a_early_init, .indication = rndis_wlan_indication, }; static const struct driver_info rndis_wlan_info = { .description = "Wireless RNDIS device", .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT | FLAG_AVOID_UNLINK_URBS, .bind = rndis_wlan_bind, .unbind = rndis_wlan_unbind, .status = rndis_status, .rx_fixup = rndis_rx_fixup, .tx_fixup = rndis_tx_fixup, .reset = rndis_wlan_reset, .stop = rndis_wlan_stop, .early_init = bcm4320a_early_init, .indication = rndis_wlan_indication, }; /*-------------------------------------------------------------------------*/ static const struct usb_device_id products [] = { #define RNDIS_MASTER_INTERFACE \ .bInterfaceClass = USB_CLASS_COMM, \ .bInterfaceSubClass = 2 /* ACM */, \ .bInterfaceProtocol = 0x0ff /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki. */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x0411, .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320b_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x0baf, .idProduct = 0x011b, /* U.S. Robotics USR5421 */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320b_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x050d, .idProduct = 0x011b, /* Belkin F5D7051 */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320b_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x1799, /* Belkin has two vendor ids */ .idProduct = 0x011b, /* Belkin F5D7051 */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320b_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x13b1, .idProduct = 0x0014, /* Linksys WUSB54GSv2 */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320b_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x13b1, .idProduct = 0x0026, /* Linksys WUSB54GSC */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320b_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x0b05, .idProduct = 0x1717, /* Asus WL169gE */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320b_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x0a5c, .idProduct = 0xd11b, /* Eminent EM4045 */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320b_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x1690, .idProduct = 0x0715, /* BT Voyager 1055 */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320b_info, }, /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom * parameters available, hardware probably contain older firmware version with * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki. */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x13b1, .idProduct = 0x000e, /* Linksys WUSB54GSv1 */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320a_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x0baf, .idProduct = 0x0111, /* U.S. Robotics USR5420 */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320a_info, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x0411, .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */ RNDIS_MASTER_INTERFACE, .driver_info = (unsigned long) &bcm4320a_info, }, /* Generic Wireless RNDIS devices that we don't have exact * idVendor/idProduct/chip yet. */ { /* RNDIS is MSFT's un-official variant of CDC ACM */ USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff), .driver_info = (unsigned long) &rndis_wlan_info, }, { /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */ USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1), .driver_info = (unsigned long) &rndis_wlan_info, }, { }, // END }; MODULE_DEVICE_TABLE(usb, products); static struct usb_driver rndis_wlan_driver = { .name = "rndis_wlan", .id_table = products, .probe = usbnet_probe, .disconnect = usbnet_disconnect, .suspend = usbnet_suspend, .resume = usbnet_resume, }; static int __init rndis_wlan_init(void) { return usb_register(&rndis_wlan_driver); } module_init(rndis_wlan_init); static void __exit rndis_wlan_exit(void) { usb_deregister(&rndis_wlan_driver); } module_exit(rndis_wlan_exit); MODULE_AUTHOR("Bjorge Dijkstra"); MODULE_AUTHOR("Jussi Kivilinna"); MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters"); MODULE_LICENSE("GPL");