rndis_wlan.rar_USB RNDIS_rndis

/* * Driver for RNDIS based wireless USB devices. * * * * 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, * by ljq * 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 <linux/module.h> #include <linux/init.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/workqueue.h> #include <linux/mutex.h> #include <linux/mii.h> #include <linux/usb.h> #include <linux/usb/cdc.h> #include <linux/wireless.h> #include <linux/ieee80211.h> #include <linux/if_arp.h> #include <linux/ctype.h> #include <linux/spinlock.h> #include <linux/slab.h> #include <net/iw_handler.h> #include <net/cfg80211.h> #include <linux/usb/usbnet.h> #include <linux/usb/rndis_host.h> /* 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; module_param_named(workaround_interval, modparam_workaround_interval, int, 0444); MODULE_PARM_DESC(workaround_interval, "set stall workaround interval in msecs (0=disabled) (default: 0)"); /* 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_CAPABILITY cpu_to_le32(0x0d010122) #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_POWER_MODE cpu_to_le32(0x0d010216) #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) /* Known device types */ #define RNDIS_UNKNOWN 0 #define RNDIS_BCM4320A 1 #define RNDIS_BCM4320B 2 /* 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_status_type { NDIS_80211_STATUSTYPE_AUTHENTICATION, NDIS_80211_STATUSTYPE_MEDIASTREAMMODE, NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST, NDIS_80211_STATUSTYPE_RADIOSTATE, }; enum ndis_80211_media_stream_mode { NDIS_80211_MEDIA_STREAM_OFF, NDIS_80211_MEDIA_STREAM_ON }; enum ndis_80211_radio_status { NDIS_80211_RADIO_STATUS_ON, NDIS_80211_RADIO_STATUS_HARDWARE_OFF, NDIS_80211_RADIO_STATUS_SOFTWARE_OFF, }; enum ndis_80211_addkey_bits { NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28), NDIS_80211_ADDKEY_SET_INIT_RECV_S