| /* |
| * Driver for RNDIS based wireless USB devices. |
| * |
| * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net> |
| * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@mbnet.fi> |
| * |
| * 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 <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 <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_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_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_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_auth_request { |
| __le32 length; |
| u8 bssid[6]; |
| u8 padding[2]; |
| __le32 flags; |
| } __attribute__((packed)); |
| |
| struct ndis_80211_pmkid_candidate { |
| u8 bssid[6]; |
| u8 padding[2]; |
| __le32 flags; |
| } __attribute__((packed)); |
| |
| struct ndis_80211_pmkid_cand_list { |
| __le32 version; |
| __le32 num_candidates; |
| struct ndis_80211_pmkid_candidate candidate_list[0]; |
| } __attribute__((packed)); |
| |
| struct ndis_80211_status_indication { |
| __le32 status_type; |
| union { |
| __le32 media_stream_mode; |
| __le32 radio_status; |
| struct ndis_80211_auth_request auth_request[0]; |
| struct ndis_80211_pmkid_cand_list cand_list; |
| } u; |
| } __attribute__((packed)); |
| |
| 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]; |
| u8 padding[2]; |
| } __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)); |
| |
| struct ndis_80211_auth_encr_pair { |
| __le32 auth_mode; |
| __le32 encr_mode; |
| } __attribute__((packed)); |
| |
| struct ndis_80211_capability { |
| __le32 length; |
| __le32 version; |
| __le32 num_pmkids; |
| __le32 num_auth_encr_pair; |
| struct ndis_80211_auth_encr_pair auth_encr_pair[0]; |
| } __attribute__((packed)); |
| |
| struct ndis_80211_bssid_info { |
| u8 bssid[6]; |
| u8 pmkid[16]; |
| }; |
| |
| struct ndis_80211_pmkid { |
| __le32 length; |
| __le32 bssid_info_count; |
| struct ndis_80211_bssid_info bssid_info[0]; |
| }; |
| |
| /* |
| * 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 RNDIS_WLAN_ALG_NONE 0 |
| #define RNDIS_WLAN_ALG_WEP (1<<0) |
| #define RNDIS_WLAN_ALG_TKIP (1<<1) |
| #define RNDIS_WLAN_ALG_CCMP (1<<2) |
| |
| #define RNDIS_WLAN_KEY_MGMT_NONE 0 |
| #define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0) |
| #define RNDIS_WLAN_KEY_MGMT_PSK (1<<1) |
| |
| #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 } |
| }; |
| |
| static const u32 rndis_cipher_suites[] = { |
| WLAN_CIPHER_SUITE_WEP40, |
| WLAN_CIPHER_SUITE_WEP104, |
| WLAN_CIPHER_SUITE_TKIP, |
| WLAN_CIPHER_SUITE_CCMP, |
| }; |
| |
| struct rndis_wlan_encr_key { |
| int len; |
| u32 cipher; |
| u8 material[32]; |
| u8 bssid[ETH_ALEN]; |
| bool pairwise; |
| bool tx_key; |
| }; |
| |
| /* 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 dev_poller_work; |
| struct delayed_work scan_work; |
| struct work_struct work; |
| struct mutex command_lock; |
| unsigned long work_pending; |
| int last_qual; |
| |
| struct ieee80211_supported_band band; |
| struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)]; |
| struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)]; |
| u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)]; |
| |
| 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 */ |
| bool radio_on; |
| int infra_mode; |
| bool connected; |
| u8 bssid[ETH_ALEN]; |
| struct ndis_80211_ssid essid; |
| __le32 current_command_oid; |
| |
| /* encryption stuff */ |
| int encr_tx_key_index; |
| struct rndis_wlan_encr_key encr_keys[4]; |
| int wpa_version; |
| |
| 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 int rndis_connect(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_connect_params *sme); |
| |
| static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev, |
| u16 reason_code); |
| |
| static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_ibss_params *params); |
| |
| static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev); |
| |
| static int rndis_set_channel(struct wiphy *wiphy, struct net_device *dev, |
| struct ieee80211_channel *chan, enum nl80211_channel_type channel_type); |
| |
| static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index, const u8 *mac_addr, |
| struct key_params *params); |
| |
| static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index, const u8 *mac_addr); |
| |
| static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index); |
| |
| static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev, |
| u8 *mac, struct station_info *sinfo); |
| |
| static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev, |
| int idx, u8 *mac, struct station_info *sinfo); |
| |
| static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, |
| struct cfg80211_pmksa *pmksa); |
| |
| static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, |
| struct cfg80211_pmksa *pmksa); |
| |
| static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev); |
| |
| 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, |
| .connect = rndis_connect, |
| .disconnect = rndis_disconnect, |
| .join_ibss = rndis_join_ibss, |
| .leave_ibss = rndis_leave_ibss, |
| .set_channel = rndis_set_channel, |
| .add_key = rndis_add_key, |
| .del_key = rndis_del_key, |
| .set_default_key = rndis_set_default_key, |
| .get_station = rndis_get_station, |
| .dump_station = rndis_dump_station, |
| .set_pmksa = rndis_set_pmksa, |
| .del_pmksa = rndis_del_pmksa, |
| .flush_pmksa = rndis_flush_pmksa, |
| }; |
| |
| static void *rndis_wiphy_privid = &rndis_wiphy_privid; |
| |
| |
| 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; |
| } |
| } |
| |
| static bool is_wpa_key(struct rndis_wlan_private *priv, int idx) |
| { |
| int cipher = priv->encr_keys[idx].cipher; |
| |
| return (cipher == WLAN_CIPHER_SUITE_CCMP || |
| cipher == WLAN_CIPHER_SUITE_TKIP); |
| } |
| |
| static int rndis_cipher_to_alg(u32 cipher) |
| { |
| switch (cipher) { |
| default: |
| return RNDIS_WLAN_ALG_NONE; |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| return RNDIS_WLAN_ALG_WEP; |
| case WLAN_CIPHER_SUITE_TKIP: |
| return RNDIS_WLAN_ALG_TKIP; |
| case WLAN_CIPHER_SUITE_CCMP: |
| return RNDIS_WLAN_ALG_CCMP; |
| } |
| } |
| |
| static int rndis_akm_suite_to_key_mgmt(u32 akm_suite) |
| { |
| switch (akm_suite) { |
| default: |
| return RNDIS_WLAN_KEY_MGMT_NONE; |
| case WLAN_AKM_SUITE_8021X: |
| return RNDIS_WLAN_KEY_MGMT_802_1X; |
| case WLAN_AKM_SUITE_PSK: |
| return RNDIS_WLAN_KEY_MGMT_PSK; |
| } |
| } |
| |
| #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; |
| int resplen, respoffs, copylen; |
| |
| 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; |
| |
| priv->current_command_oid = oid; |
| ret = rndis_command(dev, u.header, buflen); |
| priv->current_command_oid = 0; |
| if (ret < 0) |
| netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n", |
| __func__, oid_to_string(oid), ret, |
| le32_to_cpu(u.get_c->status)); |
| |
| if (ret == 0) { |
| resplen = le32_to_cpu(u.get_c->len); |
| respoffs = le32_to_cpu(u.get_c->offset) + 8; |
| |
| if (respoffs > buflen) { |
| /* Device returned data offset outside buffer, error. */ |
| netdev_dbg(dev->net, "%s(%s): received invalid " |
| "data offset: %d > %d\n", __func__, |
| oid_to_string(oid), respoffs, buflen); |
| |
| ret = -EINVAL; |
| goto exit_unlock; |
| } |
| |
| if ((resplen + respoffs) > buflen) { |
| /* Device would have returned more data if buffer would |
| * have been big enough. Copy just the bits that we got. |
| */ |
| copylen = buflen - respoffs; |
| } else { |
| copylen = resplen; |
| } |
| |
| if (copylen > *len) |
| copylen = *len; |
| |
| memcpy(data, u.buf + respoffs, copylen); |
| |
| *len = resplen; |
| |
| ret = rndis_error_status(u.get_c->status); |
| if (ret < 0) |
| netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n", |
| __func__, oid_to_string(oid), |
| le32_to_cpu(u.get_c->status), ret); |
| } |
| |
| exit_unlock: |
| 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); |
| |
| priv->current_command_oid = oid; |
| ret = rndis_command(dev, u.header, buflen); |
| priv->current_command_oid = 0; |
| if (ret < 0) |
| netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n", |
| __func__, 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) |
| netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n", |
| __func__, 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)); |
| priv->current_command_oid = 0; |
| 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) |
| netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n", |
| param, (u8 *)value); |
| else |
| netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n", |
| 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 |
| netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len); |
| for (i = 0; i < info_len; i += 12) { |
| u32 *tmp = (u32 *)((u8 *)infobuf + i); |
| netdev_dbg(dev->net, "%08X:%08X:%08X\n", |
| 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) |
| netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n", |
| 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); |
| } |
| |
| /* |
| * 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; |
| } |
| |
| /* |
| * common functions |
| */ |
| static int set_infra_mode(struct usbnet *usbdev, int mode); |
| static void restore_keys(struct usbnet *usbdev); |
| static int rndis_check_bssid_list(struct usbnet *usbdev); |
| |
| 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) { |
| netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret); |
| return ret; |
| } |
| if (ret == 0) { |
| memcpy(&priv->essid, ssid, sizeof(priv->essid)); |
| priv->radio_on = true; |
| netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__); |
| } |
| |
| return ret; |
| } |
| |
| static int set_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN]) |
| { |
| int ret; |
| |
| ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN); |
| if (ret < 0) { |
| netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n", |
| bssid, ret); |
| return ret; |
| } |
| |
| return ret; |
| } |
| |
| static int clear_bssid(struct usbnet *usbdev) |
| { |
| u8 broadcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| |
| return set_bssid(usbdev, broadcast_mac); |
| } |
| |
| 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 bool is_associated(struct usbnet *usbdev) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| u8 bssid[ETH_ALEN]; |
| int ret; |
| |
| if (!priv->radio_on) |
| return false; |
| |
| ret = get_bssid(usbdev, bssid); |
| |
| return (ret == 0 && !is_zero_ether_addr(bssid)); |
| } |
| |
| static int disassociate(struct usbnet *usbdev, bool 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 = false; |
| netdev_dbg(usbdev->net, "%s(): radio_on = false\n", |
| __func__); |
| |
| 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) { |
| /* Set device to infrastructure mode so we don't get ad-hoc |
| * 'media connect' indications with the random ssid. |
| */ |
| set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA); |
| |
| 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, u32 wpa_version, |
| enum nl80211_auth_type auth_type, int keymgmt) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| __le32 tmp; |
| int auth_mode, ret; |
| |
| netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n", |
| __func__, wpa_version, auth_type, keymgmt); |
| |
| if (wpa_version & NL80211_WPA_VERSION_2) { |
| if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X) |
| auth_mode = NDIS_80211_AUTH_WPA2; |
| else |
| auth_mode = NDIS_80211_AUTH_WPA2_PSK; |
| } else if (wpa_version & NL80211_WPA_VERSION_1) { |
| if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X) |
| auth_mode = NDIS_80211_AUTH_WPA; |
| else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK) |
| auth_mode = NDIS_80211_AUTH_WPA_PSK; |
| else |
| auth_mode = NDIS_80211_AUTH_WPA_NONE; |
| } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY) |
| auth_mode = NDIS_80211_AUTH_SHARED; |
| else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) |
| auth_mode = NDIS_80211_AUTH_OPEN; |
| else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC) |
| auth_mode = NDIS_80211_AUTH_AUTO_SWITCH; |
| else |
| return -ENOTSUPP; |
| |
| tmp = cpu_to_le32(auth_mode); |
| ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp, |
| sizeof(tmp)); |
| if (ret != 0) { |
| netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n", |
| ret); |
| return ret; |
| } |
| |
| priv->wpa_version = wpa_version; |
| |
| return 0; |
| } |
| |
| static int set_priv_filter(struct usbnet *usbdev) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| __le32 tmp; |
| |
| netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n", |
| __func__, priv->wpa_version); |
| |
| if (priv->wpa_version & NL80211_WPA_VERSION_2 || |
| priv->wpa_version & NL80211_WPA_VERSION_1) |
| 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) |
| { |
| __le32 tmp; |
| int encr_mode, ret; |
| |
| netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n", |
| __func__, pairwise, groupwise); |
| |
| if (pairwise & RNDIS_WLAN_ALG_CCMP) |
| encr_mode = NDIS_80211_ENCR_CCMP_ENABLED; |
| else if (pairwise & RNDIS_WLAN_ALG_TKIP) |
| encr_mode = NDIS_80211_ENCR_TKIP_ENABLED; |
| else if (pairwise & RNDIS_WLAN_ALG_WEP) |
| encr_mode = NDIS_80211_ENCR_WEP_ENABLED; |
| else if (groupwise & RNDIS_WLAN_ALG_CCMP) |
| encr_mode = NDIS_80211_ENCR_CCMP_ENABLED; |
| else if (groupwise & RNDIS_WLAN_ALG_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) { |
| netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n", |
| ret); |
| return ret; |
| } |
| |
| 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; |
| |
| netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n", |
| __func__, priv->infra_mode); |
| |
| tmp = cpu_to_le32(mode); |
| ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp, |
| sizeof(tmp)); |
| if (ret != 0) { |
| netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n", |
| ret); |
| return ret; |
| } |
| |
| /* NDIS drivers clear keys when infrastructure mode is |
| * changed. But Linux tools assume otherwise. So set the |
| * keys */ |
| restore_keys(usbdev); |
| |
| priv->infra_mode = mode; |
| return 0; |
| } |
| |
| static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold) |
| { |
| __le32 tmp; |
| |
| netdev_dbg(usbdev->net, "%s(): %i\n", __func__, 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; |
| |
| netdev_dbg(usbdev->net, "%s(): %i\n", __func__, 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) |
| { |
| set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA); |
| set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM, |
| RNDIS_WLAN_KEY_MGMT_NONE); |
| set_priv_filter(usbdev); |
| set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE); |
| } |
| |
| static int deauthenticate(struct usbnet *usbdev) |
| { |
| int ret; |
| |
| ret = disassociate(usbdev, true); |
| set_default_iw_params(usbdev); |
| return ret; |
| } |
| |
| static int set_channel(struct usbnet *usbdev, int channel) |
| { |
| struct ndis_80211_conf config; |
| unsigned int dsconfig; |
| int len, ret; |
| |
| netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel); |
| |
| /* this OID is valid only when not associated */ |
| if (is_associated(usbdev)) |
| return 0; |
| |
| dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000; |
| |
| len = sizeof(config); |
| ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "%s(): querying configuration failed\n", |
| __func__); |
| return ret; |
| } |
| |
| config.ds_config = cpu_to_le32(dsconfig); |
| ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config, |
| sizeof(config)); |
| |
| netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret); |
| |
| return ret; |
| } |
| |
| /* index must be 0 - N, as per NDIS */ |
| static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len, |
| int index) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| struct ndis_80211_wep_key ndis_key; |
| u32 cipher; |
| int ret; |
| |
| netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n", |
| __func__, index, key_len); |
| |
| if ((key_len != 5 && key_len != 13) || index < 0 || index > 3) |
| return -EINVAL; |
| |
| if (key_len == 5) |
| cipher = WLAN_CIPHER_SUITE_WEP40; |
| else |
| cipher = WLAN_CIPHER_SUITE_WEP104; |
| |
| 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, RNDIS_WLAN_ALG_WEP, |
| RNDIS_WLAN_ALG_NONE); |
| if (ret) |
| netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n", |
| ret); |
| } |
| |
| ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key, |
| sizeof(ndis_key)); |
| if (ret != 0) { |
| netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n", |
| index + 1, ret); |
| return ret; |
| } |
| |
| priv->encr_keys[index].len = key_len; |
| priv->encr_keys[index].cipher = cipher; |
| memcpy(&priv->encr_keys[index].material, key, key_len); |
| memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN); |
| |
| return 0; |
| } |
| |
| static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len, |
| int index, const u8 *addr, const u8 *rx_seq, |
| int seq_len, u32 cipher, __le32 flags) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| struct ndis_80211_key ndis_key; |
| bool is_addr_ok; |
| int ret; |
| |
| if (index < 0 || index >= 4) { |
| netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n", |
| __func__, index); |
| return -EINVAL; |
| } |
| if (key_len > sizeof(ndis_key.material) || key_len < 0) { |
| netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n", |
| __func__, key_len); |
| return -EINVAL; |
| } |
| if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) { |
| if (!rx_seq || seq_len <= 0) { |
| netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n", |
| __func__); |
| return -EINVAL; |
| } |
| if (rx_seq && seq_len > sizeof(ndis_key.rsc)) { |
| netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__); |
| return -EINVAL; |
| } |
| } |
| |
| is_addr_ok = addr && !is_zero_ether_addr(addr) && |
| !is_broadcast_ether_addr(addr); |
| if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) { |
| netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n", |
| __func__, addr); |
| return -EINVAL; |
| } |
| |
| netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n", |
| __func__, 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 (cipher == WLAN_CIPHER_SUITE_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, seq_len); |
| |
| if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) { |
| /* pairwise key */ |
| memcpy(ndis_key.bssid, addr, 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)); |
| netdev_dbg(usbdev->net, "%s(): OID_802_11_ADD_KEY -> %08X\n", |
| __func__, ret); |
| if (ret != 0) |
| return ret; |
| |
| memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index])); |
| priv->encr_keys[index].len = key_len; |
| priv->encr_keys[index].cipher = cipher; |
| memcpy(&priv->encr_keys[index].material, key, key_len); |
| if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) |
| memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN); |
| else |
| memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN); |
| |
| if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY) |
| priv->encr_tx_key_index = index; |
| |
| return 0; |
| } |
| |
| static int restore_key(struct usbnet *usbdev, int key_idx) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| struct rndis_wlan_encr_key key; |
| |
| if (is_wpa_key(priv, key_idx)) |
| return 0; |
| |
| key = priv->encr_keys[key_idx]; |
| |
| netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len); |
| |
| if (key.len == 0) |
| return 0; |
| |
| return add_wep_key(usbdev, key.material, key.len, key_idx); |
| } |
| |
| static void restore_keys(struct usbnet *usbdev) |
| { |
| int i; |
| |
| for (i = 0; i < 4; i++) |
| restore_key(usbdev, i); |
| } |
| |
| static void clear_key(struct rndis_wlan_private *priv, int idx) |
| { |
| memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx])); |
| } |
| |
| /* remove_key is for both wep and wpa */ |
| static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| struct ndis_80211_remove_key remove_key; |
| __le32 keyindex; |
| bool is_wpa; |
| int ret; |
| |
| if (priv->encr_keys[index].len == 0) |
| return 0; |
| |
| is_wpa = is_wpa_key(priv, index); |
| |
| netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n", |
| __func__, index, is_wpa ? "wpa" : "wep", |
| priv->encr_keys[index].len); |
| |
| clear_key(priv, index); |
| |
| if (is_wpa) { |
| remove_key.size = cpu_to_le32(sizeof(remove_key)); |
| remove_key.index = cpu_to_le32(index); |
| if (bssid) { |
| /* pairwise key */ |
| if (!is_broadcast_ether_addr(bssid)) |
| 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) { |
| netdev_warn(usbdev->net, |
| "removing encryption key %d failed (%08X)\n", |
| index, ret); |
| return ret; |
| } |
| } |
| |
| /* if it is transmit key, disable encryption */ |
| if (index == priv->encr_tx_key_index) |
| set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_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, basefilter; |
| int ret; |
| char *mc_addrs = NULL; |
| int mc_count; |
| |
| basefilter = 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) { |
| filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST; |
| } |
| |
| if (filter != basefilter) |
| goto set_filter; |
| |
| /* |
| * mc_list should be accessed holding the lock, so copy addresses to |
| * local buffer first. |
| */ |
| netif_addr_lock_bh(usbdev->net); |
| mc_count = netdev_mc_count(usbdev->net); |
| if (mc_count > priv->multicast_size) { |
| filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST; |
| } else if (mc_count) { |
| int i = 0; |
| |
| mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC); |
| if (!mc_addrs) { |
| netdev_warn(usbdev->net, |
| "couldn't alloc %d bytes of memory\n", |
| mc_count * ETH_ALEN); |
| netif_addr_unlock_bh(usbdev->net); |
| return; |
| } |
| |
| netdev_for_each_mc_addr(mclist, usbdev->net) |
| memcpy(mc_addrs + i++ * ETH_ALEN, |
| mclist->dmi_addr, ETH_ALEN); |
| } |
| netif_addr_unlock_bh(usbdev->net); |
| |
| if (filter != basefilter) |
| goto set_filter; |
| |
| if (mc_count) { |
| ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, mc_addrs, |
| mc_count * ETH_ALEN); |
| kfree(mc_addrs); |
| if (ret == 0) |
| filter |= RNDIS_PACKET_TYPE_MULTICAST; |
| else |
| filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST; |
| |
| netdev_dbg(usbdev->net, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n", |
| mc_count, priv->multicast_size, ret); |
| } |
| |
| set_filter: |
| ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter, |
| sizeof(filter)); |
| if (ret < 0) { |
| netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n", |
| le32_to_cpu(filter)); |
| } |
| |
| netdev_dbg(usbdev->net, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n", |
| le32_to_cpu(filter), ret); |
| } |
| |
| #ifdef DEBUG |
| static void debug_print_pmkids(struct usbnet *usbdev, |
| struct ndis_80211_pmkid *pmkids, |
| const char *func_str) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| int i, len, count, max_pmkids, entry_len; |
| |
| max_pmkids = priv->wdev.wiphy->max_num_pmkids; |
| len = le32_to_cpu(pmkids->length); |
| count = le32_to_cpu(pmkids->bssid_info_count); |
| |
| entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1; |
| |
| netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: " |
| "%d)\n", func_str, count, len, entry_len); |
| |
| if (count > max_pmkids) |
| count = max_pmkids; |
| |
| for (i = 0; i < count; i++) { |
| u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid; |
| |
| netdev_dbg(usbdev->net, "%s(): bssid: %pM, " |
| "pmkid: %08X:%08X:%08X:%08X\n", |
| func_str, pmkids->bssid_info[i].bssid, |
| cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]), |
| cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3])); |
| } |
| } |
| #else |
| static void debug_print_pmkids(struct usbnet *usbdev, |
| struct ndis_80211_pmkid *pmkids, |
| const char *func_str) |
| { |
| return; |
| } |
| #endif |
| |
| static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| struct ndis_80211_pmkid *pmkids; |
| int len, ret, max_pmkids; |
| |
| max_pmkids = priv->wdev.wiphy->max_num_pmkids; |
| len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]); |
| |
| pmkids = kzalloc(len, GFP_KERNEL); |
| if (!pmkids) |
| return ERR_PTR(-ENOMEM); |
| |
| pmkids->length = cpu_to_le32(len); |
| pmkids->bssid_info_count = cpu_to_le32(max_pmkids); |
| |
| ret = rndis_query_oid(usbdev, OID_802_11_PMKID, pmkids, &len); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d)" |
| " -> %d\n", __func__, len, max_pmkids, ret); |
| |
| kfree(pmkids); |
| return ERR_PTR(ret); |
| } |
| |
| if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids) |
| pmkids->bssid_info_count = cpu_to_le32(max_pmkids); |
| |
| debug_print_pmkids(usbdev, pmkids, __func__); |
| |
| return pmkids; |
| } |
| |
| static int set_device_pmkids(struct usbnet *usbdev, |
| struct ndis_80211_pmkid *pmkids) |
| { |
| int ret, len, num_pmkids; |
| |
| num_pmkids = le32_to_cpu(pmkids->bssid_info_count); |
| len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]); |
| pmkids->length = cpu_to_le32(len); |
| |
| debug_print_pmkids(usbdev, pmkids, __func__); |
| |
| ret = rndis_set_oid(usbdev, OID_802_11_PMKID, pmkids, |
| le32_to_cpu(pmkids->length)); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d) -> %d" |
| "\n", __func__, len, num_pmkids, ret); |
| } |
| |
| kfree(pmkids); |
| return ret; |
| } |
| |
| static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev, |
| struct ndis_80211_pmkid *pmkids, |
| struct cfg80211_pmksa *pmksa, |
| int max_pmkids) |
| { |
| int i, len, count, newlen, err; |
| |
| len = le32_to_cpu(pmkids->length); |
| count = le32_to_cpu(pmkids->bssid_info_count); |
| |
| if (count > max_pmkids) |
| count = max_pmkids; |
| |
| for (i = 0; i < count; i++) |
| if (!compare_ether_addr(pmkids->bssid_info[i].bssid, |
| pmksa->bssid)) |
| break; |
| |
| /* pmkid not found */ |
| if (i == count) { |
| netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n", |
| __func__, pmksa->bssid); |
| err = -ENOENT; |
| goto error; |
| } |
| |
| for (; i + 1 < count; i++) |
| pmkids->bssid_info[i] = pmkids->bssid_info[i + 1]; |
| |
| count--; |
| newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]); |
| |
| pmkids->length = cpu_to_le32(newlen); |
| pmkids->bssid_info_count = cpu_to_le32(count); |
| |
| return pmkids; |
| error: |
| kfree(pmkids); |
| return ERR_PTR(err); |
| } |
| |
| static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev, |
| struct ndis_80211_pmkid *pmkids, |
| struct cfg80211_pmksa *pmksa, |
| int max_pmkids) |
| { |
| int i, err, len, count, newlen; |
| |
| len = le32_to_cpu(pmkids->length); |
| count = le32_to_cpu(pmkids->bssid_info_count); |
| |
| if (count > max_pmkids) |
| count = max_pmkids; |
| |
| /* update with new pmkid */ |
| for (i = 0; i < count; i++) { |
| if (compare_ether_addr(pmkids->bssid_info[i].bssid, |
| pmksa->bssid)) |
| continue; |
| |
| memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid, |
| WLAN_PMKID_LEN); |
| |
| return pmkids; |
| } |
| |
| /* out of space, return error */ |
| if (i == max_pmkids) { |
| netdev_dbg(usbdev->net, "%s(): out of space\n", __func__); |
| err = -ENOSPC; |
| goto error; |
| } |
| |
| /* add new pmkid */ |
| newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]); |
| |
| pmkids = krealloc(pmkids, newlen, GFP_KERNEL); |
| if (!pmkids) { |
| err = -ENOMEM; |
| goto error; |
| } |
| |
| pmkids->length = cpu_to_le32(newlen); |
| pmkids->bssid_info_count = cpu_to_le32(count + 1); |
| |
| memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN); |
| memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN); |
| |
| return pmkids; |
| error: |
| kfree(pmkids); |
| return ERR_PTR(err); |
| } |
| |
| /* |
| * 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 rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| 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; |
| } |
| |
| priv->wdev.iftype = type; |
| |
| 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; |
| |
| netdev_dbg(usbdev->net, "%s(): type:0x%x dbm:%i\n", |
| __func__, 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, true); /* 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); |
| |
| netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm); |
| |
| return 0; |
| } |
| |
| #define SCAN_DELAY_JIFFIES (6 * 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; |
| |
| netdev_dbg(usbdev->net, "cfg80211.scan\n"); |
| |
| /* Get current bssid list from device before new scan, as new scan |
| * clears internal bssid list. |
| */ |
| rndis_check_bssid_list(usbdev); |
| |
| 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; |
| |
| netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM]\n", |
| bssid->ssid.essid, bssid->mac); |
| |
| /* 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; |
| bool resized = false; |
| |
| netdev_dbg(usbdev->net, "check_bssid_list\n"); |
| |
| len = CONTROL_BUFFER_SIZE; |
| resize_buf: |
| 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; |
| |
| if (!resized && len > CONTROL_BUFFER_SIZE) { |
| resized = true; |
| kfree(buf); |
| goto resize_buf; |
| } |
| |
| bssid_list = buf; |
| bssid = bssid_list->bssid; |
| bssid_len = le32_to_cpu(bssid->length); |
| count = le32_to_cpu(bssid_list->num_items); |
| netdev_dbg(usbdev->net, "check_bssid_list: %d BSSIDs found (buflen: %d)\n", |
| count, len); |
| |
| 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; |
| |
| netdev_dbg(usbdev->net, "get_scan_results\n"); |
| |
| if (!priv->scan_request) |
| return; |
| |
| ret = rndis_check_bssid_list(usbdev); |
| |
| cfg80211_scan_done(priv->scan_request, ret < 0); |
| |
| priv->scan_request = NULL; |
| } |
| |
| static int rndis_connect(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_connect_params *sme) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| struct ieee80211_channel *channel = sme->channel; |
| struct ndis_80211_ssid ssid; |
| int pairwise = RNDIS_WLAN_ALG_NONE; |
| int groupwise = RNDIS_WLAN_ALG_NONE; |
| int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE; |
| int length, i, ret, chan = -1; |
| |
| if (channel) |
| chan = ieee80211_frequency_to_channel(channel->center_freq); |
| |
| groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group); |
| for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++) |
| pairwise |= |
| rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]); |
| |
| if (sme->crypto.n_ciphers_pairwise > 0 && |
| pairwise == RNDIS_WLAN_ALG_NONE) { |
| netdev_err(usbdev->net, "Unsupported pairwise cipher\n"); |
| return -ENOTSUPP; |
| } |
| |
| for (i = 0; i < sme->crypto.n_akm_suites; i++) |
| keymgmt |= |
| rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]); |
| |
| if (sme->crypto.n_akm_suites > 0 && |
| keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) { |
| netdev_err(usbdev->net, "Invalid keymgmt\n"); |
| return -ENOTSUPP; |
| } |
| |
| netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n", |
| sme->ssid, sme->bssid, chan, |
| sme->privacy, sme->crypto.wpa_versions, sme->auth_type, |
| groupwise, pairwise, keymgmt); |
| |
| if (is_associated(usbdev)) |
| disassociate(usbdev, false); |
| |
| ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| |
| ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type, |
| keymgmt); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| |
| set_priv_filter(usbdev); |
| |
| ret = set_encr_mode(usbdev, pairwise, groupwise); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| |
| if (channel) { |
| ret = set_channel(usbdev, chan); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| } |
| |
| if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) { |
| priv->encr_tx_key_index = sme->key_idx; |
| ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n", |
| ret, sme->key_len, sme->key_idx); |
| goto err_turn_radio_on; |
| } |
| } |
| |
| if (sme->bssid && !is_zero_ether_addr(sme->bssid) && |
| !is_broadcast_ether_addr(sme->bssid)) { |
| ret = set_bssid(usbdev, sme->bssid); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| } else |
| clear_bssid(usbdev); |
| |
| length = sme->ssid_len; |
| if (length > NDIS_802_11_LENGTH_SSID) |
| length = NDIS_802_11_LENGTH_SSID; |
| |
| memset(&ssid, 0, sizeof(ssid)); |
| ssid.length = cpu_to_le32(length); |
| memcpy(ssid.essid, sme->ssid, length); |
| |
| /* Pause and purge rx queue, so we don't pass packets before |
| * 'media connect'-indication. |
| */ |
| usbnet_pause_rx(usbdev); |
| usbnet_purge_paused_rxq(usbdev); |
| |
| ret = set_essid(usbdev, &ssid); |
| if (ret < 0) |
| netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret); |
| return ret; |
| |
| err_turn_radio_on: |
| disassociate(usbdev, true); |
| |
| return ret; |
| } |
| |
| static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev, |
| u16 reason_code) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| |
| netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code); |
| |
| priv->connected = false; |
| memset(priv->bssid, 0, ETH_ALEN); |
| |
| return deauthenticate(usbdev); |
| } |
| |
| static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_ibss_params *params) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| struct ieee80211_channel *channel = params->channel; |
| struct ndis_80211_ssid ssid; |
| enum nl80211_auth_type auth_type; |
| int ret, alg, length, chan = -1; |
| |
| if (channel) |
| chan = ieee80211_frequency_to_channel(channel->center_freq); |
| |
| /* TODO: How to handle ad-hoc encryption? |
| * connect() has *key, join_ibss() doesn't. RNDIS requires key to be |
| * pre-shared for encryption (open/shared/wpa), is key set before |
| * join_ibss? Which auth_type to use (not in params)? What about WPA? |
| */ |
| if (params->privacy) { |
| auth_type = NL80211_AUTHTYPE_SHARED_KEY; |
| alg = RNDIS_WLAN_ALG_WEP; |
| } else { |
| auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
| alg = RNDIS_WLAN_ALG_NONE; |
| } |
| |
| netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n", |
| params->ssid, params->bssid, chan, params->privacy); |
| |
| if (is_associated(usbdev)) |
| disassociate(usbdev, false); |
| |
| ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| |
| ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| |
| set_priv_filter(usbdev); |
| |
| ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| |
| if (channel) { |
| ret = set_channel(usbdev, chan); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| } |
| |
| if (params->bssid && !is_zero_ether_addr(params->bssid) && |
| !is_broadcast_ether_addr(params->bssid)) { |
| ret = set_bssid(usbdev, params->bssid); |
| if (ret < 0) { |
| netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n", |
| ret); |
| goto err_turn_radio_on; |
| } |
| } else |
| clear_bssid(usbdev); |
| |
| length = params->ssid_len; |
| if (length > NDIS_802_11_LENGTH_SSID) |
| length = NDIS_802_11_LENGTH_SSID; |
| |
| memset(&ssid, 0, sizeof(ssid)); |
| ssid.length = cpu_to_le32(length); |
| memcpy(ssid.essid, params->ssid, length); |
| |
| /* Don't need to pause rx queue for ad-hoc. */ |
| usbnet_purge_paused_rxq(usbdev); |
| usbnet_resume_rx(usbdev); |
| |
| ret = set_essid(usbdev, &ssid); |
| if (ret < 0) |
| netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n", |
| ret); |
| return ret; |
| |
| err_turn_radio_on: |
| disassociate(usbdev, true); |
| |
| return ret; |
| } |
| |
| static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| |
| netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n"); |
| |
| priv->connected = false; |
| memset(priv->bssid, 0, ETH_ALEN); |
| |
| return deauthenticate(usbdev); |
| } |
| |
| static int rndis_set_channel(struct wiphy *wiphy, struct net_device *netdev, |
| struct ieee80211_channel *chan, enum nl80211_channel_type channel_type) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| |
| return set_channel(usbdev, |
| ieee80211_frequency_to_channel(chan->center_freq)); |
| } |
| |
| static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index, const u8 *mac_addr, |
| struct key_params *params) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| __le32 flags; |
| |
| netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n", |
| __func__, key_index, mac_addr, params->cipher); |
| |
| switch (params->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| return add_wep_key(usbdev, params->key, params->key_len, |
| key_index); |
| case WLAN_CIPHER_SUITE_TKIP: |
| case WLAN_CIPHER_SUITE_CCMP: |
| flags = 0; |
| |
| if (params->seq && params->seq_len > 0) |
| flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ; |
| if (mac_addr) |
| flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY | |
| NDIS_80211_ADDKEY_TRANSMIT_KEY; |
| |
| return add_wpa_key(usbdev, params->key, params->key_len, |
| key_index, mac_addr, params->seq, |
| params->seq_len, params->cipher, flags); |
| default: |
| netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n", |
| __func__, params->cipher); |
| return -ENOTSUPP; |
| } |
| } |
| |
| static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index, const u8 *mac_addr) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| |
| netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr); |
| |
| return remove_key(usbdev, key_index, mac_addr); |
| } |
| |
| static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| struct rndis_wlan_encr_key key; |
| |
| netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index); |
| |
| priv->encr_tx_key_index = key_index; |
| |
| key = priv->encr_keys[key_index]; |
| |
| return add_wep_key(usbdev, key.material, key.len, key_index); |
| } |
| |
| static void rndis_fill_station_info(struct usbnet *usbdev, |
| struct station_info *sinfo) |
| { |
| __le32 linkspeed, rssi; |
| int ret, len; |
| |
| memset(sinfo, 0, sizeof(*sinfo)); |
| |
| len = sizeof(linkspeed); |
| ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len); |
| if (ret == 0) { |
| sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000; |
| sinfo->filled |= STATION_INFO_TX_BITRATE; |
| } |
| |
| len = sizeof(rssi); |
| ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len); |
| if (ret == 0) { |
| sinfo->signal = level_to_qual(le32_to_cpu(rssi)); |
| sinfo->filled |= STATION_INFO_SIGNAL; |
| } |
| } |
| |
| static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev, |
| u8 *mac, struct station_info *sinfo) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| |
| if (compare_ether_addr(priv->bssid, mac)) |
| return -ENOENT; |
| |
| rndis_fill_station_info(usbdev, sinfo); |
| |
| return 0; |
| } |
| |
| static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev, |
| int idx, u8 *mac, struct station_info *sinfo) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| |
| if (idx != 0) |
| return -ENOENT; |
| |
| memcpy(mac, priv->bssid, ETH_ALEN); |
| |
| rndis_fill_station_info(usbdev, sinfo); |
| |
| return 0; |
| } |
| |
| static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, |
| struct cfg80211_pmksa *pmksa) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| struct ndis_80211_pmkid *pmkids; |
| u32 *tmp = (u32 *)pmksa->pmkid; |
| |
| netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__, |
| pmksa->bssid, |
| cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]), |
| cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3])); |
| |
| pmkids = get_device_pmkids(usbdev); |
| if (IS_ERR(pmkids)) { |
| /* couldn't read PMKID cache from device */ |
| return PTR_ERR(pmkids); |
| } |
| |
| pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids); |
| if (IS_ERR(pmkids)) { |
| /* not found, list full, etc */ |
| return PTR_ERR(pmkids); |
| } |
| |
| return set_device_pmkids(usbdev, pmkids); |
| } |
| |
| static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, |
| struct cfg80211_pmksa *pmksa) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| struct ndis_80211_pmkid *pmkids; |
| u32 *tmp = (u32 *)pmksa->pmkid; |
| |
| netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__, |
| pmksa->bssid, |
| cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]), |
| cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3])); |
| |
| pmkids = get_device_pmkids(usbdev); |
| if (IS_ERR(pmkids)) { |
| /* Couldn't read PMKID cache from device */ |
| return PTR_ERR(pmkids); |
| } |
| |
| pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids); |
| if (IS_ERR(pmkids)) { |
| /* not found, etc */ |
| return PTR_ERR(pmkids); |
| } |
| |
| return set_device_pmkids(usbdev, pmkids); |
| } |
| |
| static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) |
| { |
| struct rndis_wlan_private *priv = wiphy_priv(wiphy); |
| struct usbnet *usbdev = priv->usbdev; |
| struct ndis_80211_pmkid pmkid; |
| |
| netdev_dbg(usbdev->net, "%s()\n", __func__); |
| |
| memset(&pmkid, 0, sizeof(pmkid)); |
| |
| pmkid.length = cpu_to_le32(sizeof(pmkid)); |
| pmkid.bssid_info_count = cpu_to_le32(0); |
| |
| return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid)); |
| } |
| |
| /* |
| * workers, indication handlers, device poller |
| */ |
| static void rndis_wlan_do_link_up_work(struct usbnet *usbdev) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| struct ndis_80211_assoc_info *info; |
| u8 assoc_buf[sizeof(*info) + IW_CUSTOM_MAX + 32]; |
| u8 bssid[ETH_ALEN]; |
| int resp_ie_len, req_ie_len; |
| u8 *req_ie, *resp_ie; |
| int ret, offset; |
| bool roamed = false; |
| |
| if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) { |
| /* received media connect indication while connected, either |
| * device reassociated with same AP or roamed to new. */ |
| roamed = true; |
| } |
| |
| req_ie_len = 0; |
| resp_ie_len = 0; |
| req_ie = NULL; |
| resp_ie = NULL; |
| |
| if (priv->infra_mode == NDIS_80211_INFRA_INFRA) { |
| memset(assoc_buf, 0, sizeof(assoc_buf)); |
| info = (void *)assoc_buf; |
| |
| /* Get association info IEs from device and send them back to |
| * userspace. */ |
| ret = get_association_info(usbdev, info, sizeof(assoc_buf)); |
| if (!ret) { |
| req_ie_len = le32_to_cpu(info->req_ie_length); |
| if (req_ie_len > 0) { |
| offset = le32_to_cpu(info->offset_req_ies); |
| req_ie = (u8 *)info + offset; |
| } |
| |
| resp_ie_len = le32_to_cpu(info->resp_ie_length); |
| if (resp_ie_len > 0) { |
| offset = le32_to_cpu(info->offset_resp_ies); |
| resp_ie = (u8 *)info + offset; |
| } |
| } |
| } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC)) |
| return; |
| |
| ret = get_bssid(usbdev, bssid); |
| if (ret < 0) |
| memset(bssid, 0, sizeof(bssid)); |
| |
| netdev_dbg(usbdev->net, "link up work: [%pM]%s\n", |
| bssid, roamed ? " roamed" : ""); |
| |
| /* Internal bss list in device always contains at least the currently |
| * connected bss and we can get it to cfg80211 with |
| * rndis_check_bssid_list(). |
| * NOTE: This is true for Broadcom chip, but not mentioned in RNDIS |
| * spec. |
| */ |
| rndis_check_bssid_list(usbdev); |
| |
| if (priv->infra_mode == NDIS_80211_INFRA_INFRA) { |
| if (!roamed) |
| cfg80211_connect_result(usbdev->net, bssid, req_ie, |
| req_ie_len, resp_ie, |
| resp_ie_len, 0, GFP_KERNEL); |
| else |
| cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len, |
| resp_ie, resp_ie_len, GFP_KERNEL); |
| } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC) |
| cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL); |
| |
| priv->connected = true; |
| memcpy(priv->bssid, bssid, ETH_ALEN); |
| |
| usbnet_resume_rx(usbdev); |
| netif_carrier_on(usbdev->net); |
| } |
| |
| static void rndis_wlan_do_link_down_work(struct usbnet *usbdev) |
| { |
| union iwreq_data evt; |
| |
| 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); |
| } |
| |
| 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; |
| |
| if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) |
| rndis_wlan_do_link_up_work(usbdev); |
| |
| if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) |
| rndis_wlan_do_link_down_work(usbdev); |
| |
| 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_auth_indication(struct usbnet *usbdev, |
| struct ndis_80211_status_indication *indication, |
| int len) |
| { |
| u8 *buf; |
| const char *type; |
| int flags, buflen, key_id; |
| bool pairwise_error, group_error; |
| struct ndis_80211_auth_request *auth_req; |
| enum nl80211_key_type key_type; |
| |
| /* must have at least one array entry */ |
| if (len < offsetof(struct ndis_80211_status_indication, u) + |
| sizeof(struct ndis_80211_auth_request)) { |
| netdev_info(usbdev->net, "authentication indication: too short message (%i)\n", |
| len); |
| return; |
| } |
| |
| buf = (void *)&indication->u.auth_request[0]; |
| buflen = len - offsetof(struct ndis_80211_status_indication, u); |
| |
| while (buflen >= sizeof(*auth_req)) { |
| auth_req = (void *)buf; |
| type = "unknown"; |
| flags = le32_to_cpu(auth_req->flags); |
| pairwise_error = false; |
| group_error = false; |
| |
| if (flags & 0x1) |
| type = "reauth request"; |
| if (flags & 0x2) |
| type = "key update request"; |
| if (flags & 0x6) { |
| pairwise_error = true; |
| type = "pairwise_error"; |
| } |
| if (flags & 0xe) { |
| group_error = true; |
| type = "group_error"; |
| } |
| |
| netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n", |
| type, le32_to_cpu(auth_req->flags)); |
| |
| if (pairwise_error) { |
| key_type = NL80211_KEYTYPE_PAIRWISE; |
| key_id = -1; |
| |
| cfg80211_michael_mic_failure(usbdev->net, |
| auth_req->bssid, |
| key_type, key_id, NULL, |
| GFP_KERNEL); |
| } |
| |
| if (group_error) { |
| key_type = NL80211_KEYTYPE_GROUP; |
| key_id = -1; |
| |
| cfg80211_michael_mic_failure(usbdev->net, |
| auth_req->bssid, |
| key_type, key_id, NULL, |
| GFP_KERNEL); |
| } |
| |
| buflen -= le32_to_cpu(auth_req->length); |
| buf += le32_to_cpu(auth_req->length); |
| } |
| } |
| |
| static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev, |
| struct ndis_80211_status_indication *indication, |
| int len) |
| { |
| struct ndis_80211_pmkid_cand_list *cand_list; |
| int list_len, expected_len, i; |
| |
| if (len < offsetof(struct ndis_80211_status_indication, u) + |
| sizeof(struct ndis_80211_pmkid_cand_list)) { |
| netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n", |
| len); |
| return; |
| } |
| |
| list_len = le32_to_cpu(indication->u.cand_list.num_candidates) * |
| sizeof(struct ndis_80211_pmkid_candidate); |
| expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len + |
| offsetof(struct ndis_80211_status_indication, u); |
| |
| if (len < expected_len) { |
| netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n", |
| len, expected_len); |
| return; |
| } |
| |
| cand_list = &indication->u.cand_list; |
| |
| netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n", |
| le32_to_cpu(cand_list->version), |
| le32_to_cpu(cand_list->num_candidates)); |
| |
| if (le32_to_cpu(cand_list->version) != 1) |
| return; |
| |
| for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) { |
| struct ndis_80211_pmkid_candidate *cand = |
| &cand_list->candidate_list[i]; |
| |
| netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, bssid: %pM\n", |
| i, le32_to_cpu(cand->flags), cand->bssid); |
| |
| #if 0 |
| struct iw_pmkid_cand pcand; |
| union iwreq_data wrqu; |
| |
| memset(&pcand, 0, sizeof(pcand)); |
| if (le32_to_cpu(cand->flags) & 0x01) |
| pcand.flags |= IW_PMKID_CAND_PREAUTH; |
| pcand.index = i; |
| memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN); |
| |
| memset(&wrqu, 0, sizeof(wrqu)); |
| wrqu.data.length = sizeof(pcand); |
| wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu, |
| (u8 *)&pcand); |
| #endif |
| } |
| } |
| |
| static void rndis_wlan_media_specific_indication(struct usbnet *usbdev, |
| struct rndis_indicate *msg, int buflen) |
| { |
| struct ndis_80211_status_indication *indication; |
| int len, offset; |
| |
| offset = offsetof(struct rndis_indicate, status) + |
| le32_to_cpu(msg->offset); |
| len = le32_to_cpu(msg->length); |
| |
| if (len < 8) { |
| netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n", |
| len); |
| return; |
| } |
| |
| if (offset + len > buflen) { |
| netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n", |
| offset + len, buflen); |
| return; |
| } |
| |
| indication = (void *)((u8 *)msg + offset); |
| |
| switch (le32_to_cpu(indication->status_type)) { |
| case NDIS_80211_STATUSTYPE_RADIOSTATE: |
| netdev_info(usbdev->net, "radio state indication: %i\n", |
| le32_to_cpu(indication->u.radio_status)); |
| return; |
| |
| case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE: |
| netdev_info(usbdev->net, "media stream mode indication: %i\n", |
| le32_to_cpu(indication->u.media_stream_mode)); |
| return; |
| |
| case NDIS_80211_STATUSTYPE_AUTHENTICATION: |
| rndis_wlan_auth_indication(usbdev, indication, len); |
| return; |
| |
| case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST: |
| rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len); |
| return; |
| |
| default: |
| netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n", |
| le32_to_cpu(indication->status_type)); |
| } |
| } |
| |
| 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; |
| |
| switch (msg->status) { |
| case RNDIS_STATUS_MEDIA_CONNECT: |
| if (priv->current_command_oid == OID_802_11_ADD_KEY) { |
| /* OID_802_11_ADD_KEY causes sometimes extra |
| * "media connect" indications which confuses driver |
| * and userspace to think that device is |
| * roaming/reassociating when it isn't. |
| */ |
| netdev_dbg(usbdev->net, "ignored OID_802_11_ADD_KEY triggered 'media connect'\n"); |
| return; |
| } |
| |
| usbnet_pause_rx(usbdev); |
| |
| netdev_info(usbdev->net, "media connect\n"); |
| |
| /* queue work to avoid recursive calls into rndis_command */ |
| set_bit(WORK_LINK_UP, &priv->work_pending); |
| queue_work(priv->workqueue, &priv->work); |
| break; |
| |
| case RNDIS_STATUS_MEDIA_DISCONNECT: |
| netdev_info(usbdev->net, "media disconnect\n"); |
| |
| /* queue work to avoid recursive calls into rndis_command */ |
| set_bit(WORK_LINK_DOWN, &priv->work_pending); |
| queue_work(priv->workqueue, &priv->work); |
| break; |
| |
| case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION: |
| rndis_wlan_media_specific_indication(usbdev, msg, buflen); |
| break; |
| |
| default: |
| netdev_info(usbdev->net, "indication: 0x%08x\n", |
| le32_to_cpu(msg->status)); |
| break; |
| } |
| } |
| |
| static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy) |
| { |
| struct { |
| __le32 num_items; |
| __le32 items[8]; |
| } networks_supported; |
| struct ndis_80211_capability *caps; |
| u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16]; |
| 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; |
| } |
| } |
| } |
| |
| /* get device 802.11 capabilities, number of PMKIDs */ |
| caps = (struct ndis_80211_capability *)caps_buf; |
| len = sizeof(caps_buf); |
| retval = rndis_query_oid(usbdev, OID_802_11_CAPABILITY, caps, &len); |
| if (retval >= 0) { |
| netdev_dbg(usbdev->net, "OID_802_11_CAPABILITY -> len %d, " |
| "ver %d, pmkids %d, auth-encr-pairs %d\n", |
| le32_to_cpu(caps->length), |
| le32_to_cpu(caps->version), |
| le32_to_cpu(caps->num_pmkids), |
| le32_to_cpu(caps->num_auth_encr_pair)); |
| wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids); |
| } else |
| wiphy->max_num_pmkids = 0; |
| |
| return retval; |
| } |
| |
| #define DEVICE_POLLER_JIFFIES (HZ) |
| static void rndis_device_poller(struct work_struct *work) |
| { |
| struct rndis_wlan_private *priv = |
| container_of(work, struct rndis_wlan_private, |
| dev_poller_work.work); |
| struct usbnet *usbdev = priv->usbdev; |
| __le32 rssi, tmp; |
| int len, ret, j; |
| int update_jiffies = DEVICE_POLLER_JIFFIES; |
| void *buf; |
| |
| /* Only check/do workaround when connected. Calling is_associated() |
| * also polls device with rndis_command() and catches for media link |
| * indications. |
| */ |
| if (!is_associated(usbdev)) |
| goto end; |
| |
| len = sizeof(rssi); |
| ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len); |
| if (ret == 0) |
| priv->last_qual = level_to_qual(le32_to_cpu(rssi)); |
| |
| netdev_dbg(usbdev->net, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n", |
| ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi))); |
| |
| /* 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 (priv->param_workaround_interval > 0 && priv->last_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 > DEVICE_POLLER_JIFFIES) |
| j = DEVICE_POLLER_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: |
| 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->dev_poller_work, |
| update_jiffies); |
| } |
| |
| /* |
| * driver/device initialization |
| */ |
| static void rndis_copy_module_params(struct usbnet *usbdev) |
| { |
| struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); |
| |
| 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; |
| } |
| |
| static int bcm4320a_early_init(struct usbnet *usbdev) |
| { |
| /* copy module parameters for bcm4320a so that iwconfig reports txpower |
| * and workaround parameter is copied to private structure correctly. |
| */ |
| rndis_copy_module_params(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]; |
| |
| rndis_copy_module_params(usbdev); |
| |
| /* Early initialization settings, setting these won't have effect |
| * if called after generic_rndis_bind(). |
| */ |
| |
| 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; |
| priv->usbdev = usbdev; |
| |
| mutex_init(&priv->command_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->dev_poller_work, rndis_device_poller); |
| 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; |
| |
| /* 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/encr information based on priv->caps */ |
| rndis_wlan_get_caps(usbdev, wiphy); |
| |
| 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; |
| |
| memcpy(priv->cipher_suites, rndis_cipher_suites, |
| sizeof(rndis_cipher_suites)); |
| wiphy->cipher_suites = priv->cipher_suites; |
| wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites); |
| |
| 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 = true; |
| disassociate(usbdev, true); |
| netif_carrier_off(usbdev->net); |
| |
| return 0; |
| |
| fail: |
| cancel_delayed_work_sync(&priv->dev_poller_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, false); |
| |
| cancel_delayed_work_sync(&priv->dev_poller_work); |
| cancel_delayed_work_sync(&priv->scan_work); |
| cancel_work_sync(&priv->work); |
| flush_workqueue(priv->workqueue); |
| destroy_workqueue(priv->workqueue); |
| |
| 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; |
| |
| netdev_dbg(usbdev->net, "%s()\n", __func__); |
| |
| retval = rndis_reset(usbdev); |
| if (retval) |
| netdev_warn(usbdev->net, "rndis_reset failed: %d\n", 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->dev_poller_work, |
| round_jiffies_relative(DEVICE_POLLER_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; |
| |
| netdev_dbg(usbdev->net, "%s()\n", __func__); |
| |
| retval = disassociate(usbdev, false); |
| |
| priv->work_pending = 0; |
| cancel_delayed_work_sync(&priv->dev_poller_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"); |
| |