diff options
Diffstat (limited to 'drivers/net/wireless/legacy/rndis_wlan.c')
| -rw-r--r-- | drivers/net/wireless/legacy/rndis_wlan.c | 3760 |
1 files changed, 0 insertions, 3760 deletions
diff --git a/drivers/net/wireless/legacy/rndis_wlan.c b/drivers/net/wireless/legacy/rndis_wlan.c deleted file mode 100644 index e7fea7ded6d5..000000000000 --- a/drivers/net/wireless/legacy/rndis_wlan.c +++ /dev/null @@ -1,3760 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Driver for RNDIS based USB wireless devices. - * - * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net> - * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@iki.fi> - * - * 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/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/ieee80211.h> -#include <linux/if_arp.h> -#include <linux/ctype.h> -#include <linux/spinlock.h> -#include <linux/slab.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)"); - -/* 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 - -/* Known device types */ -#define RNDIS_UNKNOWN 0 -#define RNDIS_BCM4320A 1 -#define RNDIS_BCM4320B 2 - - -/* NDIS data structures. Taken from wpa_supplicant driver_ndis.c - * slightly modified for datatype endianess, etc - */ -#define NDIS_802_11_LENGTH_SSID 32 -#define NDIS_802_11_LENGTH_RATES 8 -#define NDIS_802_11_LENGTH_RATES_EX 16 - -enum ndis_80211_net_type { - NDIS_80211_TYPE_FREQ_HOP, - NDIS_80211_TYPE_DIRECT_SEQ, - NDIS_80211_TYPE_OFDM_A, - NDIS_80211_TYPE_OFDM_G -}; - -enum ndis_80211_net_infra { - NDIS_80211_INFRA_ADHOC, - NDIS_80211_INFRA_INFRA, - NDIS_80211_INFRA_AUTO_UNKNOWN -}; - -enum ndis_80211_auth_mode { - NDIS_80211_AUTH_OPEN, - NDIS_80211_AUTH_SHARED, - NDIS_80211_AUTH_AUTO_SWITCH, - NDIS_80211_AUTH_WPA, - NDIS_80211_AUTH_WPA_PSK, - NDIS_80211_AUTH_WPA_NONE, - NDIS_80211_AUTH_WPA2, - NDIS_80211_AUTH_WPA2_PSK -}; - -enum ndis_80211_encr_status { - NDIS_80211_ENCR_WEP_ENABLED, - NDIS_80211_ENCR_DISABLED, - NDIS_80211_ENCR_WEP_KEY_ABSENT, - NDIS_80211_ENCR_NOT_SUPPORTED, - NDIS_80211_ENCR_TKIP_ENABLED, - NDIS_80211_ENCR_TKIP_KEY_ABSENT, - NDIS_80211_ENCR_CCMP_ENABLED, - NDIS_80211_ENCR_CCMP_KEY_ABSENT -}; - -enum ndis_80211_priv_filter { - NDIS_80211_PRIV_ACCEPT_ALL, - NDIS_80211_PRIV_8021X_WEP -}; - -enum ndis_80211_status_type { - NDIS_80211_STATUSTYPE_AUTHENTICATION, - NDIS_80211_STATUSTYPE_MEDIASTREAMMODE, - NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST, - NDIS_80211_STATUSTYPE_RADIOSTATE, -}; - -enum ndis_80211_media_stream_mode { - NDIS_80211_MEDIA_STREAM_OFF, - NDIS_80211_MEDIA_STREAM_ON -}; - -enum ndis_80211_radio_status { - NDIS_80211_RADIO_STATUS_ON, - NDIS_80211_RADIO_STATUS_HARDWARE_OFF, - NDIS_80211_RADIO_STATUS_SOFTWARE_OFF, -}; - -enum ndis_80211_addkey_bits { - NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28), - NDIS_80211_ADDKEY_SET_INIT_RECV_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) -}; - -enum ndis_80211_power_mode { - NDIS_80211_POWER_MODE_CAM, - NDIS_80211_POWER_MODE_MAX_PSP, - NDIS_80211_POWER_MODE_FAST_PSP, -}; - -enum ndis_80211_pmkid_cand_list_flag_bits { - NDIS_80211_PMKID_CAND_PREAUTH = cpu_to_le32(1 << 0) -}; - -struct ndis_80211_auth_request { - __le32 length; - u8 bssid[ETH_ALEN]; - u8 padding[2]; - __le32 flags; -} __packed; - -struct ndis_80211_pmkid_candidate { - u8 bssid[ETH_ALEN]; - u8 padding[2]; - __le32 flags; -} __packed; - -struct ndis_80211_pmkid_cand_list { - __le32 version; - __le32 num_candidates; - struct ndis_80211_pmkid_candidate candidate_list[]; -} __packed; - -struct ndis_80211_status_indication { - __le32 status_type; - union { - __le32 media_stream_mode; - __le32 radio_status; - DECLARE_FLEX_ARRAY(struct ndis_80211_auth_request, auth_request); - struct ndis_80211_pmkid_cand_list cand_list; - } u; -} __packed; - -struct ndis_80211_ssid { - __le32 length; - u8 essid[NDIS_802_11_LENGTH_SSID]; -} __packed; - -struct ndis_80211_conf_freq_hop { - __le32 length; - __le32 hop_pattern; - __le32 hop_set; - __le32 dwell_time; -} __packed; - -struct ndis_80211_conf { - __le32 length; - __le32 beacon_period; - __le32 atim_window; - __le32 ds_config; - struct ndis_80211_conf_freq_hop fh_config; -} __packed; - -struct ndis_80211_bssid_ex { - __le32 length; - u8 mac[ETH_ALEN]; - 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[]; -} __packed; - -struct ndis_80211_bssid_list_ex { - __le32 num_items; - u8 bssid_data[]; -} __packed; - -struct ndis_80211_fixed_ies { - u8 timestamp[8]; - __le16 beacon_interval; - __le16 capabilities; -} __packed; - -struct ndis_80211_wep_key { - __le32 size; - __le32 index; - __le32 length; - u8 material[32]; -} __packed; - -struct ndis_80211_key { - __le32 size; - __le32 index; - __le32 length; - u8 bssid[ETH_ALEN]; - u8 padding[6]; - u8 rsc[8]; - u8 material[32]; -} __packed; - -struct ndis_80211_remove_key { - __le32 size; - __le32 index; - u8 bssid[ETH_ALEN]; - u8 padding[2]; -} __packed; - -struct ndis_config_param { - __le32 name_offs; - __le32 name_length; - __le32 type; - __le32 value_offs; - __le32 value_length; -} __packed; - -struct ndis_80211_assoc_info { - __le32 length; - __le16 req_ies; - struct req_ie { - __le16 capa; - __le16 listen_interval; - u8 cur_ap_address[ETH_ALEN]; - } 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; -} __packed; - -struct ndis_80211_capability { - __le32 length; - __le32 version; - __le32 num_pmkids; - __le32 num_auth_encr_pair; -} __packed; - -struct ndis_80211_bssid_info { - u8 bssid[ETH_ALEN]; - u8 pmkid[16]; -} __packed; - -struct ndis_80211_pmkid { - __le32 length; - __le32 bssid_info_count; - struct ndis_80211_bssid_info bssid_info[]; -} __packed; - -/* - * private data - */ -#define CAP_MODE_80211A 1 -#define CAP_MODE_80211B 2 -#define CAP_MODE_80211G 4 -#define CAP_MODE_MASK 7 - -#define WORK_LINK_UP 0 -#define WORK_LINK_DOWN 1 -#define WORK_SET_MULTICAST_LIST 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_NUM_KEYS 4 -#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; - s32 cqm_rssi_thold; - u32 cqm_rssi_hyst; - int last_cqm_event_rssi; - - 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 device_type; - 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 power_mode; - int infra_mode; - bool connected; - u8 bssid[ETH_ALEN]; - u32 current_command_oid; - - /* encryption stuff */ - u8 encr_tx_key_index; - struct rndis_wlan_encr_key encr_keys[RNDIS_WLAN_NUM_KEYS]; - 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, - struct vif_params *params); - -static int rndis_scan(struct wiphy *wiphy, - 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, - struct wireless_dev *wdev, - enum nl80211_tx_power_setting type, - int mbm); -static int rndis_get_tx_power(struct wiphy *wiphy, - struct wireless_dev *wdev, - 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_add_key(struct wiphy *wiphy, struct net_device *netdev, - int link_id, u8 key_index, bool pairwise, - const u8 *mac_addr, struct key_params *params); - -static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev, - int link_id, u8 key_index, bool pairwise, - const u8 *mac_addr); - -static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev, - int link_id, u8 key_index, bool unicast, - bool multicast); - -static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev, - const 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 int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, - bool enabled, int timeout); - -static int rndis_set_cqm_rssi_config(struct wiphy *wiphy, - struct net_device *dev, - s32 rssi_thold, u32 rssi_hyst); - -static const 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, - .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, - .set_power_mgmt = rndis_set_power_mgmt, - .set_cqm_rssi_config = rndis_set_cqm_rssi_config, -}; - -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, u8 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(u32 oid) -{ - switch (oid) { -#define OID_STR(oid) case oid: return(#oid) - /* from rndis_host.h */ - OID_STR(RNDIS_OID_802_3_PERMANENT_ADDRESS); - OID_STR(RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE); - OID_STR(RNDIS_OID_GEN_CURRENT_PACKET_FILTER); - OID_STR(RNDIS_OID_GEN_PHYSICAL_MEDIUM); - - /* from rndis_wlan.c */ - OID_STR(RNDIS_OID_GEN_LINK_SPEED); - OID_STR(RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER); - - OID_STR(RNDIS_OID_GEN_XMIT_OK); - OID_STR(RNDIS_OID_GEN_RCV_OK); - OID_STR(RNDIS_OID_GEN_XMIT_ERROR); - OID_STR(RNDIS_OID_GEN_RCV_ERROR); - OID_STR(RNDIS_OID_GEN_RCV_NO_BUFFER); - - OID_STR(RNDIS_OID_802_3_CURRENT_ADDRESS); - OID_STR(RNDIS_OID_802_3_MULTICAST_LIST); - OID_STR(RNDIS_OID_802_3_MAXIMUM_LIST_SIZE); - - OID_STR(RNDIS_OID_802_11_BSSID); - OID_STR(RNDIS_OID_802_11_SSID); - OID_STR(RNDIS_OID_802_11_INFRASTRUCTURE_MODE); - OID_STR(RNDIS_OID_802_11_ADD_WEP); - OID_STR(RNDIS_OID_802_11_REMOVE_WEP); - OID_STR(RNDIS_OID_802_11_DISASSOCIATE); - OID_STR(RNDIS_OID_802_11_AUTHENTICATION_MODE); - OID_STR(RNDIS_OID_802_11_PRIVACY_FILTER); - OID_STR(RNDIS_OID_802_11_BSSID_LIST_SCAN); - OID_STR(RNDIS_OID_802_11_ENCRYPTION_STATUS); - OID_STR(RNDIS_OID_802_11_ADD_KEY); - OID_STR(RNDIS_OID_802_11_REMOVE_KEY); - OID_STR(RNDIS_OID_802_11_ASSOCIATION_INFORMATION); - OID_STR(RNDIS_OID_802_11_CAPABILITY); - OID_STR(RNDIS_OID_802_11_PMKID); - OID_STR(RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED); - OID_STR(RNDIS_OID_802_11_NETWORK_TYPE_IN_USE); - OID_STR(RNDIS_OID_802_11_TX_POWER_LEVEL); - OID_STR(RNDIS_OID_802_11_RSSI); - OID_STR(RNDIS_OID_802_11_RSSI_TRIGGER); - OID_STR(RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD); - OID_STR(RNDIS_OID_802_11_RTS_THRESHOLD); - OID_STR(RNDIS_OID_802_11_SUPPORTED_RATES); - OID_STR(RNDIS_OID_802_11_CONFIGURATION); - OID_STR(RNDIS_OID_802_11_POWER_MODE); - OID_STR(RNDIS_OID_802_11_BSSID_LIST); -#undef OID_STR - } - - return "?"; -} -#else -static const char *oid_to_string(u32 oid) -{ - return "?"; -} -#endif - -/* translate error code */ -static int rndis_error_status(__le32 rndis_status) -{ - int ret = -EINVAL; - switch (le32_to_cpu(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, u32 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; - size_t buflen, 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 = cpu_to_le32(RNDIS_MSG_QUERY); - u.get->msg_len = cpu_to_le32(sizeof *u.get); - u.get->oid = cpu_to_le32(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: %zu > %zu\n", - __func__, oid_to_string(oid), respoffs, buflen); - - ret = -EINVAL; - goto exit_unlock; - } - - copylen = min(resplen, buflen - respoffs); - - 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, u32 oid, const 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 = cpu_to_le32(RNDIS_MSG_SET); - u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len); - u.set->oid = cpu_to_le32(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 = cpu_to_le32(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, RNDIS_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, u8 *match_bssid, - bool *matched); - -static int rndis_start_bssid_list_scan(struct usbnet *usbdev) -{ - __le32 tmp; - - /* Note: RNDIS_OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */ - tmp = cpu_to_le32(1); - return rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST_SCAN, &tmp, - sizeof(tmp)); -} - -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, RNDIS_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) { - priv->radio_on = true; - netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__); - } - - return ret; -} - -static int set_bssid(struct usbnet *usbdev, const u8 *bssid) -{ - int ret; - - ret = rndis_set_oid(usbdev, RNDIS_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) -{ - static const 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, RNDIS_OID_802_11_BSSID, - bssid, &len); - - if (ret != 0) - eth_zero_addr(bssid); - - return ret; -} - -static int get_association_info(struct usbnet *usbdev, - struct ndis_80211_assoc_info *info, int len) -{ - return rndis_query_oid(usbdev, - RNDIS_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]; - - if (!priv->radio_on) - return false; - - return (get_bssid(usbdev, bssid) == 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, - RNDIS_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, - RNDIS_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, - RNDIS_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, - RNDIS_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, - RNDIS_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 == -1 || rts_threshold > 2347) - rts_threshold = 2347; - - tmp = cpu_to_le32(rts_threshold); - return rndis_set_oid(usbdev, - RNDIS_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, - RNDIS_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 = 1000 * - ieee80211_channel_to_frequency(channel, NL80211_BAND_2GHZ); - - len = sizeof(config); - ret = rndis_query_oid(usbdev, - RNDIS_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, - RNDIS_OID_802_11_CONFIGURATION, - &config, sizeof(config)); - - netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret); - - return ret; -} - -static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev, - u32 *beacon_period) -{ - struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); - struct ieee80211_channel *channel; - struct ndis_80211_conf config; - int len, ret; - - /* Get channel and beacon interval */ - len = sizeof(config); - ret = rndis_query_oid(usbdev, - RNDIS_OID_802_11_CONFIGURATION, - &config, &len); - netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_CONFIGURATION -> %d\n", - __func__, ret); - if (ret < 0) - return NULL; - - channel = ieee80211_get_channel(priv->wdev.wiphy, - KHZ_TO_MHZ(le32_to_cpu(config.ds_config))); - if (!channel) - return NULL; - - if (beacon_period) - *beacon_period = le32_to_cpu(config.beacon_period); - return channel; -} - -/* index must be 0 - N, as per NDIS */ -static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len, - u8 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 (index >= RNDIS_WLAN_NUM_KEYS) - return -EINVAL; - - if (key_len == 5) - cipher = WLAN_CIPHER_SUITE_WEP40; - else if (key_len == 13) - cipher = WLAN_CIPHER_SUITE_WEP104; - else - return -EINVAL; - - memset(&ndis_key, 0, sizeof(ndis_key)); - - ndis_key.size = cpu_to_le32(sizeof(ndis_key)); - ndis_key.length = cpu_to_le32(key_len); - ndis_key.index = cpu_to_le32(index); - memcpy(&ndis_key.material, key, key_len); - - if (index == priv->encr_tx_key_index) { - ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY; - ret = set_encr_mode(usbdev, 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, - RNDIS_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); - eth_broadcast_addr(priv->encr_keys[index].bssid); - - return 0; -} - -static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len, - u8 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 >= RNDIS_WLAN_NUM_KEYS) { - 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) - eth_broadcast_addr(ndis_key.bssid); - else - get_bssid(usbdev, ndis_key.bssid); - } - - ret = rndis_set_oid(usbdev, - RNDIS_OID_802_11_ADD_KEY, &ndis_key, - le32_to_cpu(ndis_key.size)); - netdev_dbg(usbdev->net, "%s(): RNDIS_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 - eth_broadcast_addr(priv->encr_keys[index].bssid); - - if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY) - priv->encr_tx_key_index = index; - - return 0; -} - -static int restore_key(struct usbnet *usbdev, u8 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, u8 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, u8 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 (index >= RNDIS_WLAN_NUM_KEYS) - return -ENOENT; - - 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, - RNDIS_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, - RNDIS_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 netdev_hw_addr *ha; - __le32 filter, basefilter; - int ret; - char *mc_addrs = NULL; - int mc_count; - - basefilter = filter = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | - RNDIS_PACKET_TYPE_BROADCAST); - - if (usbdev->net->flags & IFF_PROMISC) { - filter |= cpu_to_le32(RNDIS_PACKET_TYPE_PROMISCUOUS | - RNDIS_PACKET_TYPE_ALL_LOCAL); - } else if (usbdev->net->flags & IFF_ALLMULTI) { - filter |= cpu_to_le32(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 |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST); - } else if (mc_count) { - int i = 0; - - mc_addrs = kmalloc_array(mc_count, ETH_ALEN, GFP_ATOMIC); - if (!mc_addrs) { - netif_addr_unlock_bh(usbdev->net); - return; - } - - netdev_for_each_mc_addr(ha, usbdev->net) - memcpy(mc_addrs + i++ * ETH_ALEN, - ha->addr, ETH_ALEN); - } - netif_addr_unlock_bh(usbdev->net); - - if (filter != basefilter) - goto set_filter; - - if (mc_count) { - ret = rndis_set_oid(usbdev, - RNDIS_OID_802_3_MULTICAST_LIST, - mc_addrs, mc_count * ETH_ALEN); - kfree(mc_addrs); - if (ret == 0) - filter |= cpu_to_le32(RNDIS_PACKET_TYPE_MULTICAST); - else - filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST); - - netdev_dbg(usbdev->net, "RNDIS_OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n", - mc_count, priv->multicast_size, ret); - } - -set_filter: - ret = rndis_set_oid(usbdev, RNDIS_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, "RNDIS_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 = struct_size(pmkids, bssid_info, max_pmkids); - - 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, RNDIS_OID_802_11_PMKID, - pmkids, &len); - if (ret < 0) { - netdev_dbg(usbdev->net, "%s(): RNDIS_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 = struct_size(pmkids, bssid_info, num_pmkids); - pmkids->length = cpu_to_le32(len); - - debug_print_pmkids(usbdev, pmkids, __func__); - - ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID, pmkids, - le32_to_cpu(pmkids->length)); - if (ret < 0) { - netdev_dbg(usbdev->net, "%s(): RNDIS_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, err; - unsigned int count; - - count = le32_to_cpu(pmkids->bssid_info_count); - - if (count > max_pmkids) - count = max_pmkids; - - for (i = 0; i < count; i++) - if (ether_addr_equal(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--; - pmkids->length = cpu_to_le32(struct_size(pmkids, bssid_info, count)); - 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) -{ - struct ndis_80211_pmkid *new_pmkids; - int i, err, newlen; - unsigned int count; - - 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 (!ether_addr_equal(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 = struct_size(pmkids, bssid_info, count + 1); - - new_pmkids = krealloc(pmkids, newlen, GFP_KERNEL); - if (!new_pmkids) { - err = -ENOMEM; - goto error; - } - pmkids = new_pmkids; - - 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, - 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, - struct wireless_dev *wdev, - enum nl80211_tx_power_setting type, - int mbm) -{ - struct rndis_wlan_private *priv = wiphy_priv(wiphy); - struct usbnet *usbdev = priv->usbdev; - - netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n", - __func__, type, mbm); - - if (mbm < 0 || (mbm % 100)) - return -ENOTSUPP; - - /* 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 == NL80211_TX_POWER_AUTOMATIC || - MBM_TO_DBM(mbm) == 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, - struct wireless_dev *wdev, - 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 cfg80211_scan_request *request) -{ - struct net_device *dev = request->wdev->netdev; - struct usbnet *usbdev = netdev_priv(dev); - struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); - int ret; - int delay = SCAN_DELAY_JIFFIES; - - 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, NULL, NULL); - - if (priv->scan_request && priv->scan_request != request) - return -EBUSY; - - priv->scan_request = request; - - ret = rndis_start_bssid_list_scan(usbdev); - if (ret == 0) { - if (priv->device_type == RNDIS_BCM4320A) - delay = HZ; - - /* Wait before retrieving scan results from device */ - queue_delayed_work(priv->workqueue, &priv->scan_work, delay); - } - - return ret; -} - -static bool 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; - struct cfg80211_bss *bss; - 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], len: %d\n", - bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length)); - - /* 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 false; - - 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 false; - - /* 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 false; - - 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); - - bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, - CFG80211_BSS_FTYPE_UNKNOWN, bssid->mac, - timestamp, capability, beacon_interval, - ie, ie_len, signal, GFP_KERNEL); - cfg80211_put_bss(priv->wdev.wiphy, bss); - - return (bss != NULL); -} - -static struct ndis_80211_bssid_ex *next_bssid_list_item( - struct ndis_80211_bssid_ex *bssid, - int *bssid_len, void *buf, int len) -{ - void *buf_end, *bssid_end; - - buf_end = (char *)buf + len; - bssid_end = (char *)bssid + *bssid_len; - - if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) { - *bssid_len = 0; - return NULL; - } else { - bssid = (void *)((char *)bssid + *bssid_len); - *bssid_len = le32_to_cpu(bssid->length); - return bssid; - } -} - -static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid, - int bssid_len, void *buf, int len) -{ - void *buf_end, *bssid_end; - - if (!bssid || bssid_len <= 0 || bssid_len > len) - return false; - - buf_end = (char *)buf + len; - bssid_end = (char *)bssid + bssid_len; - - return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0; -} - -static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid, - bool *matched) -{ - void *buf = NULL; - struct ndis_80211_bssid_list_ex *bssid_list; - struct ndis_80211_bssid_ex *bssid; - int ret = -EINVAL, len, count, bssid_len, real_count, new_len; - - netdev_dbg(usbdev->net, "%s()\n", __func__); - - len = CONTROL_BUFFER_SIZE; -resize_buf: - buf = kzalloc(len, GFP_KERNEL); - if (!buf) { - ret = -ENOMEM; - goto out; - } - - /* BSSID-list might have got bigger last time we checked, keep - * resizing until it won't get any bigger. - */ - new_len = len; - ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST, - buf, &new_len); - if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex)) - goto out; - - if (new_len > len) { - len = new_len; - kfree(buf); - goto resize_buf; - } - - len = new_len; - - bssid_list = buf; - count = le32_to_cpu(bssid_list->num_items); - real_count = 0; - netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len); - - bssid_len = 0; - bssid = next_bssid_list_item((void *)bssid_list->bssid_data, - &bssid_len, buf, len); - - /* Device returns incorrect 'num_items'. Workaround by ignoring the - * received 'num_items' and walking through full bssid buffer instead. - */ - while (check_bssid_list_item(bssid, bssid_len, buf, len)) { - if (rndis_bss_info_update(usbdev, bssid) && match_bssid && - matched) { - if (ether_addr_equal(bssid->mac, match_bssid)) - *matched = true; - } - - real_count++; - bssid = next_bssid_list_item(bssid, &bssid_len, buf, len); - } - - netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:" - " %d\n", __func__, count, real_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; - struct cfg80211_scan_info info = {}; - int ret; - - netdev_dbg(usbdev->net, "get_scan_results\n"); - - if (!priv->scan_request) - return; - - ret = rndis_check_bssid_list(usbdev, NULL, NULL); - - info.aborted = ret < 0; - cfg80211_scan_done(priv->scan_request, &info); - - 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; - eth_zero_addr(priv->bssid); - - 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->chandef.chan; - 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; - eth_zero_addr(priv->bssid); - - return deauthenticate(usbdev); -} - -static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev, - int link_id, u8 key_index, bool pairwise, - 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, - int link_id, u8 key_index, bool pairwise, - 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, - int link_id, u8 key_index, bool unicast, - bool multicast) -{ - 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); - - if (key_index >= RNDIS_WLAN_NUM_KEYS) - return -ENOENT; - - priv->encr_tx_key_index = key_index; - - if (is_wpa_key(priv, key_index)) - return 0; - - 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, RNDIS_OID_GEN_LINK_SPEED, &linkspeed, &len); - if (ret == 0) { - sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000; - sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); - } - - len = sizeof(rssi); - ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI, - &rssi, &len); - if (ret == 0) { - sinfo->signal = level_to_qual(le32_to_cpu(rssi)); - sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); - } -} - -static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev, - const u8 *mac, struct station_info *sinfo) -{ - struct rndis_wlan_private *priv = wiphy_priv(wiphy); - struct usbnet *usbdev = priv->usbdev; - - if (!ether_addr_equal(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, RNDIS_OID_802_11_PMKID, - &pmkid, sizeof(pmkid)); -} - -static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, - bool enabled, int timeout) -{ - struct rndis_wlan_private *priv = wiphy_priv(wiphy); - struct usbnet *usbdev = priv->usbdev; - int power_mode; - __le32 mode; - int ret; - - if (priv->device_type != RNDIS_BCM4320B) - return -ENOTSUPP; - - netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__, - enabled ? "enabled" : "disabled", - timeout); - - if (enabled) - power_mode = NDIS_80211_POWER_MODE_FAST_PSP; - else - power_mode = NDIS_80211_POWER_MODE_CAM; - - if (power_mode == priv->power_mode) - return 0; - - priv->power_mode = power_mode; - - mode = cpu_to_le32(power_mode); - ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_POWER_MODE, - &mode, sizeof(mode)); - - netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_POWER_MODE -> %d\n", - __func__, ret); - - return ret; -} - -static int rndis_set_cqm_rssi_config(struct wiphy *wiphy, - struct net_device *dev, - s32 rssi_thold, u32 rssi_hyst) -{ - struct rndis_wlan_private *priv = wiphy_priv(wiphy); - - priv->cqm_rssi_thold = rssi_thold; - priv->cqm_rssi_hyst = rssi_hyst; - priv->last_cqm_event_rssi = 0; - - return 0; -} - -static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid, - struct ndis_80211_assoc_info *info) -{ - struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); - struct ieee80211_channel *channel; - struct ndis_80211_ssid ssid; - struct cfg80211_bss *bss; - s32 signal; - u64 timestamp; - u16 capability; - u32 beacon_period = 0; - __le32 rssi; - u8 ie_buf[34]; - int len, ret, ie_len; - - /* Get signal quality, in case of error use rssi=0 and ignore error. */ - len = sizeof(rssi); - rssi = 0; - ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI, - &rssi, &len); - signal = level_to_qual(le32_to_cpu(rssi)); - - netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_RSSI -> %d, " - "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi), - level_to_qual(le32_to_cpu(rssi))); - - /* Get AP capabilities */ - if (info) { - capability = le16_to_cpu(info->resp_ie.capa); - } else { - /* Set atleast ESS/IBSS capability */ - capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ? - WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS; - } - - /* Get channel and beacon interval */ - channel = get_current_channel(usbdev, &beacon_period); - if (!channel) { - netdev_warn(usbdev->net, "%s(): could not get channel.\n", - __func__); - return; - } - - /* Get SSID, in case of error, use zero length SSID and ignore error. */ - len = sizeof(ssid); - memset(&ssid, 0, sizeof(ssid)); - ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_SSID, - &ssid, &len); - netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_SSID -> %d, len: %d, ssid: " - "'%.32s'\n", __func__, ret, - le32_to_cpu(ssid.length), ssid.essid); - - if (le32_to_cpu(ssid.length) > 32) - ssid.length = cpu_to_le32(32); - - ie_buf[0] = WLAN_EID_SSID; - ie_buf[1] = le32_to_cpu(ssid.length); - memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length)); - - ie_len = le32_to_cpu(ssid.length) + 2; - - /* no tsf */ - timestamp = 0; - - netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, " - "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), " - "signal:%d\n", __func__, (channel ? channel->center_freq : -1), - bssid, (u32)timestamp, capability, beacon_period, ie_len, - ssid.essid, signal); - - bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, - CFG80211_BSS_FTYPE_UNKNOWN, bssid, - timestamp, capability, beacon_period, - ie_buf, ie_len, signal, GFP_KERNEL); - cfg80211_put_bss(priv->wdev.wiphy, bss); -} - -/* - * 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 = NULL; - u8 bssid[ETH_ALEN]; - unsigned int resp_ie_len, req_ie_len; - unsigned int offset; - u8 *req_ie, *resp_ie; - int ret; - bool roamed = false; - bool match_bss; - - 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) { - info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL); - if (!info) { - /* No memory? Try resume work later */ - set_bit(WORK_LINK_UP, &priv->work_pending); - queue_work(priv->workqueue, &priv->work); - return; - } - - /* Get association info IEs from device. */ - ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE); - if (!ret) { - req_ie_len = le32_to_cpu(info->req_ie_length); - if (req_ie_len > CONTROL_BUFFER_SIZE) - req_ie_len = CONTROL_BUFFER_SIZE; - if (req_ie_len != 0) { - offset = le32_to_cpu(info->offset_req_ies); - - if (offset > CONTROL_BUFFER_SIZE) - offset = CONTROL_BUFFER_SIZE; - - req_ie = (u8 *)info + offset; - - if (offset + req_ie_len > CONTROL_BUFFER_SIZE) - req_ie_len = - CONTROL_BUFFER_SIZE - offset; - } - - resp_ie_len = le32_to_cpu(info->resp_ie_length); - if (resp_ie_len > CONTROL_BUFFER_SIZE) - resp_ie_len = CONTROL_BUFFER_SIZE; - if (resp_ie_len != 0) { - offset = le32_to_cpu(info->offset_resp_ies); - - if (offset > CONTROL_BUFFER_SIZE) - offset = CONTROL_BUFFER_SIZE; - - resp_ie = (u8 *)info + offset; - - if (offset + resp_ie_len > CONTROL_BUFFER_SIZE) - resp_ie_len = - CONTROL_BUFFER_SIZE - offset; - } - } else { - /* Since rndis_wlan_craft_connected_bss() might use info - * later and expects info to contain valid data if - * non-null, free info and set NULL here. - */ - kfree(info); - info = NULL; - } - } 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 should contain at least the currently - * connected bss and we can get it to cfg80211 with - * rndis_check_bssid_list(). - * - * NDIS spec says: "If the device is associated, but the associated - * BSSID is not in its BSSID scan list, then the driver must add an - * entry for the BSSID at the end of the data that it returns in - * response to query of RNDIS_OID_802_11_BSSID_LIST." - * - * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a. - */ - match_bss = false; - rndis_check_bssid_list(usbdev, bssid, &match_bss); - - if (!is_zero_ether_addr(bssid) && !match_bss) { - /* Couldn't get bss from device, we need to manually craft bss - * for cfg80211. - */ - rndis_wlan_craft_connected_bss(usbdev, bssid, info); - } - - 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 { - struct cfg80211_roam_info roam_info = { - .links[0].channel = - get_current_channel(usbdev, NULL), - .links[0].bssid = bssid, - .req_ie = req_ie, - .req_ie_len = req_ie_len, - .resp_ie = resp_ie, - .resp_ie_len = resp_ie_len, - }; - - cfg80211_roamed(usbdev->net, &roam_info, GFP_KERNEL); - } - } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC) - cfg80211_ibss_joined(usbdev->net, bssid, - get_current_channel(usbdev, NULL), - GFP_KERNEL); - - kfree(info); - - 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) -{ - struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); - - if (priv->connected) { - priv->connected = false; - eth_zero_addr(priv->bssid); - - deauthenticate(usbdev); - - cfg80211_disconnected(usbdev->net, 0, NULL, 0, true, GFP_KERNEL); - } - - netif_carrier_off(usbdev->net); -} - -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; - if (buflen < le32_to_cpu(auth_req->length)) - return; - 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]; - bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH); - - netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n", - i, le32_to_cpu(cand->flags), preauth, cand->bssid); - - cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid, - preauth, GFP_ATOMIC); - } -} - -static void rndis_wlan_media_specific_indication(struct usbnet *usbdev, - struct rndis_indicate *msg, int buflen) -{ - struct ndis_80211_status_indication *indication; - unsigned 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 (len > buflen || offset > buflen || 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 (le32_to_cpu(msg->status)) { - case RNDIS_STATUS_MEDIA_CONNECT: - if (priv->current_command_oid == RNDIS_OID_802_11_ADD_KEY) { - /* RNDIS_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 RNDIS_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; - 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, - RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED, - &networks_supported, &len); - if (!retval) { - 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 */ - len = sizeof(caps); - retval = rndis_query_oid(usbdev, - RNDIS_OID_802_11_CAPABILITY, - &caps, &len); - if (!retval) { - netdev_dbg(usbdev->net, "RNDIS_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; -} - -static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi) -{ - struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); - enum nl80211_cqm_rssi_threshold_event event; - int thold, hyst, last_event; - - if (priv->cqm_rssi_thold >= 0 || rssi >= 0) - return; - if (priv->infra_mode != NDIS_80211_INFRA_INFRA) - return; - - last_event = priv->last_cqm_event_rssi; - thold = priv->cqm_rssi_thold; - hyst = priv->cqm_rssi_hyst; - - if (rssi < thold && (last_event == 0 || rssi < last_event - hyst)) - event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; - else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst)) - event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; - else - return; - - priv->last_cqm_event_rssi = rssi; - cfg80211_cqm_rssi_notify(usbdev->net, event, rssi, GFP_KERNEL); -} - -#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)) { - /* Workaround bad scanning in BCM4320a devices with active - * background scanning when not associated. - */ - if (priv->device_type == RNDIS_BCM4320A && priv->radio_on && - !priv->scan_request) { - /* Get previous scan results */ - rndis_check_bssid_list(usbdev, NULL, NULL); - - /* Initiate new scan */ - rndis_start_bssid_list_scan(usbdev); - } - - goto end; - } - - len = sizeof(rssi); - ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI, - &rssi, &len); - if (ret == 0) { - priv->last_qual = level_to_qual(le32_to_cpu(rssi)); - rndis_do_cqm(usbdev, le32_to_cpu(rssi)); - } - - netdev_dbg(usbdev->net, "dev-poller: RNDIS_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, - RNDIS_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, - RNDIS_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, int device_type) -{ - struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); - - priv->device_type = device_type; - - 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 unknown_early_init(struct usbnet *usbdev) -{ - /* copy module parameters for unknown so that iwconfig reports txpower - * and workaround parameter is copied to private structure correctly. - */ - rndis_copy_module_params(usbdev, RNDIS_UNKNOWN); - - /* This is unknown device, so do not try set configuration parameters. - */ - - return 0; -} - -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, RNDIS_BCM4320A); - - /* 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, RNDIS_BCM4320B); - - /* 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_get_stats64 = dev_get_tstats64, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_rx_mode = 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"); - if (!priv->workqueue) { - wiphy_free(wiphy); - return -ENOMEM; - } - 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 = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST); - retval = rndis_set_oid(usbdev, - RNDIS_OID_GEN_CURRENT_PACKET_FILTER, - &tmp, sizeof(tmp)); - - len = sizeof(tmp); - retval = rndis_query_oid(usbdev, - RNDIS_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[NL80211_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); - - priv->power_mode = -1; - - /* set default rts/frag */ - rndis_set_wiphy_params(wiphy, - WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD); - - /* turn radio off on init */ - priv->radio_on = false; - disassociate(usbdev, false); - 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); - 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); - 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) { - struct cfg80211_scan_info info = { - .aborted = true, - }; - - cfg80211_scan_done(priv->scan_request, &info); - priv->scan_request = NULL; - } - - /* Set current packet filter zero to block receiving data packets from - device. */ - filter = 0; - rndis_set_oid(usbdev, RNDIS_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 = unknown_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, - .disable_hub_initiated_lpm = 1, -}; - -module_usb_driver(rndis_wlan_driver); - -MODULE_AUTHOR("Bjorge Dijkstra"); -MODULE_AUTHOR("Jussi Kivilinna"); -MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters"); -MODULE_LICENSE("GPL"); - |