--- /dev/null
+/*
+ * Driver for RNDIS based wireless USB devices.
+ *
+ * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
+ * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * 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[0];
+} __packed;
+
+struct ndis_80211_status_indication {
+ __le32 status_type;
+ union {
+ __le32 media_stream_mode;
+ __le32 radio_status;
+ struct ndis_80211_auth_request auth_request[0];
+ struct ndis_80211_pmkid_cand_list cand_list;
+ } u;
+} __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[0];
+} __packed;
+
+struct ndis_80211_bssid_list_ex {
+ __le32 num_items;
+ struct ndis_80211_bssid_ex bssid[0];
+} __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_auth_encr_pair {
+ __le32 auth_mode;
+ __le32 encr_mode;
+} __packed;
+
+struct ndis_80211_capability {
+ __le32 length;
+ __le32 version;
+ __le32 num_pmkids;
+ __le32 num_auth_encr_pair;
+ struct ndis_80211_auth_encr_pair auth_encr_pair[0];
+} __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[0];
+} __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 (1<<0)
+#define WORK_LINK_DOWN (1<<1)
+#define WORK_SET_MULTICAST_LIST (1<<2)
+
+#define RNDIS_WLAN_ALG_NONE 0
+#define RNDIS_WLAN_ALG_WEP (1<<0)
+#define RNDIS_WLAN_ALG_TKIP (1<<1)
+#define RNDIS_WLAN_ALG_CCMP (1<<2)
+
+#define RNDIS_WLAN_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, u32 *flags,
+ 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,
+ 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,
+ u8 key_index, bool pairwise, const u8 *mac_addr);
+
+static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
+ 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, buflen;
+ int resplen, respoffs, copylen;
+
+ buflen = *len + sizeof(*u.get);
+ if (buflen < CONTROL_BUFFER_SIZE)
+ buflen = CONTROL_BUFFER_SIZE;
+
+ if (buflen > COMMAND_BUFFER_SIZE) {
+ u.buf = kmalloc(buflen, GFP_KERNEL);
+ if (!u.buf)
+ return -ENOMEM;
+ } else {
+ u.buf = priv->command_buffer;
+ }
+
+ mutex_lock(&priv->command_lock);
+
+ memset(u.get, 0, sizeof *u.get);
+ u.get->msg_type = 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: %d > %d\n", __func__,
+ oid_to_string(oid), respoffs, buflen);
+
+ ret = -EINVAL;
+ goto exit_unlock;
+ }
+
+ if ((resplen + respoffs) > buflen) {
+ /* Device would have returned more data if buffer would
+ * have been big enough. Copy just the bits that we got.
+ */
+ copylen = buflen - respoffs;
+ } else {
+ copylen = resplen;
+ }
+
+ if (copylen > *len)
+ copylen = *len;
+
+ memcpy(data, u.buf + respoffs, copylen);
+
+ *len = resplen;
+
+ ret = rndis_error_status(u.get_c->status);
+ if (ret < 0)
+ netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
+ __func__, oid_to_string(oid),
+ le32_to_cpu(u.get_c->status), ret);
+ }
+
+exit_unlock:
+ mutex_unlock(&priv->command_lock);
+
+ if (u.buf != priv->command_buffer)
+ kfree(u.buf);
+ return ret;
+}
+
+static int rndis_set_oid(struct usbnet *dev, 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];
+ int ret;
+
+ if (!priv->radio_on)
+ return false;
+
+ ret = get_bssid(usbdev, bssid);
+
+ return (ret == 0 && !is_zero_ether_addr(bssid));
+}
+
+static int disassociate(struct usbnet *usbdev, bool reset_ssid)
+{
+ struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+ struct ndis_80211_ssid ssid;
+ int i, ret = 0;
+
+ if (priv->radio_on) {
+ ret = rndis_set_oid(usbdev,
+ 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 < 0 || 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, IEEE80211_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 = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
+
+ pmkids = kzalloc(len, GFP_KERNEL);
+ if (!pmkids)
+ return ERR_PTR(-ENOMEM);
+
+ pmkids->length = cpu_to_le32(len);
+ pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
+
+ ret = rndis_query_oid(usbdev, 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 = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
+ pmkids->length = cpu_to_le32(len);
+
+ debug_print_pmkids(usbdev, pmkids, __func__);
+
+ ret = rndis_set_oid(usbdev, 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, newlen, 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--;
+ newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
+
+ pmkids->length = cpu_to_le32(newlen);
+ pmkids->bssid_info_count = cpu_to_le32(count);
+
+ return pmkids;
+error:
+ kfree(pmkids);
+ return ERR_PTR(err);
+}
+
+static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
+ struct ndis_80211_pmkid *pmkids,
+ struct cfg80211_pmksa *pmksa,
+ int max_pmkids)
+{
+ 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 = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
+
+ 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, u32 *flags,
+ struct vif_params *params)
+{
+ struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+ struct usbnet *usbdev = priv->usbdev;
+ int mode;
+
+ switch (type) {
+ case NL80211_IFTYPE_ADHOC:
+ mode = NDIS_80211_INFRA_ADHOC;
+ break;
+ case NL80211_IFTYPE_STATION:
+ mode = NDIS_80211_INFRA_INFRA;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ priv->wdev.iftype = type;
+
+ return set_infra_mode(usbdev, mode);
+}
+
+static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+{
+ struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+ struct usbnet *usbdev = priv->usbdev;
+ int err;
+
+ if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
+ err = set_frag_threshold(usbdev, wiphy->frag_threshold);
+ if (err < 0)
+ return err;
+ }
+
+ if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
+ err = set_rts_threshold(usbdev, wiphy->rts_threshold);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static int rndis_set_tx_power(struct wiphy *wiphy,
+ 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 NULL;
+
+ fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
+
+ ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
+ ie_len = min(bssid_len - (int)sizeof(*bssid),
+ (int)le32_to_cpu(bssid->ie_length));
+ ie_len -= sizeof(struct ndis_80211_fixed_ies);
+ if (ie_len < 0)
+ return NULL;
+
+ /* extract data for cfg80211_inform_bss */
+ channel = ieee80211_get_channel(priv->wdev.wiphy,
+ KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
+ if (!channel)
+ return NULL;
+
+ signal = level_to_qual(le32_to_cpu(bssid->rssi));
+ timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
+ capability = le16_to_cpu(fixed->capabilities);
+ beacon_interval = le16_to_cpu(fixed->beacon_interval);
+
+ 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(bssid_list->bssid, &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;
+ int ret;
+
+ netdev_dbg(usbdev->net, "get_scan_results\n");
+
+ if (!priv->scan_request)
+ return;
+
+ ret = rndis_check_bssid_list(usbdev, NULL, NULL);
+
+ cfg80211_scan_done(priv->scan_request, ret < 0);
+
+ priv->scan_request = NULL;
+}
+
+static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_connect_params *sme)
+{
+ struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+ struct usbnet *usbdev = priv->usbdev;
+ struct ieee80211_channel *channel = sme->channel;
+ struct ndis_80211_ssid ssid;
+ int pairwise = RNDIS_WLAN_ALG_NONE;
+ int groupwise = RNDIS_WLAN_ALG_NONE;
+ int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
+ int length, i, ret, chan = -1;
+
+ if (channel)
+ chan = ieee80211_frequency_to_channel(channel->center_freq);
+
+ groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
+ for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
+ pairwise |=
+ rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
+
+ if (sme->crypto.n_ciphers_pairwise > 0 &&
+ pairwise == RNDIS_WLAN_ALG_NONE) {
+ netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
+ return -ENOTSUPP;
+ }
+
+ for (i = 0; i < sme->crypto.n_akm_suites; i++)
+ keymgmt |=
+ rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
+
+ if (sme->crypto.n_akm_suites > 0 &&
+ keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
+ netdev_err(usbdev->net, "Invalid keymgmt\n");
+ return -ENOTSUPP;
+ }
+
+ netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
+ sme->ssid, sme->bssid, chan,
+ sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
+ groupwise, pairwise, keymgmt);
+
+ if (is_associated(usbdev))
+ disassociate(usbdev, false);
+
+ ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
+ if (ret < 0) {
+ netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
+ ret);
+ goto err_turn_radio_on;
+ }
+
+ ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
+ keymgmt);
+ if (ret < 0) {
+ netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
+ ret);
+ goto err_turn_radio_on;
+ }
+
+ set_priv_filter(usbdev);
+
+ ret = set_encr_mode(usbdev, pairwise, groupwise);
+ if (ret < 0) {
+ netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
+ ret);
+ goto err_turn_radio_on;
+ }
+
+ if (channel) {
+ ret = set_channel(usbdev, chan);
+ if (ret < 0) {
+ netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
+ ret);
+ goto err_turn_radio_on;
+ }
+ }
+
+ if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
+ priv->encr_tx_key_index = sme->key_idx;
+ ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
+ if (ret < 0) {
+ netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
+ ret, sme->key_len, sme->key_idx);
+ goto err_turn_radio_on;
+ }
+ }
+
+ if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
+ !is_broadcast_ether_addr(sme->bssid)) {
+ ret = set_bssid(usbdev, sme->bssid);
+ if (ret < 0) {
+ netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
+ ret);
+ goto err_turn_radio_on;
+ }
+ } else
+ clear_bssid(usbdev);
+
+ length = sme->ssid_len;
+ if (length > NDIS_802_11_LENGTH_SSID)
+ length = NDIS_802_11_LENGTH_SSID;
+
+ memset(&ssid, 0, sizeof(ssid));
+ ssid.length = cpu_to_le32(length);
+ memcpy(ssid.essid, sme->ssid, length);
+
+ /* Pause and purge rx queue, so we don't pass packets before
+ * 'media connect'-indication.
+ */
+ usbnet_pause_rx(usbdev);
+ usbnet_purge_paused_rxq(usbdev);
+
+ ret = set_essid(usbdev, &ssid);
+ if (ret < 0)
+ netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
+ return ret;
+
+err_turn_radio_on:
+ disassociate(usbdev, true);
+
+ return ret;
+}
+
+static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
+ u16 reason_code)
+{
+ struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+ struct usbnet *usbdev = priv->usbdev;
+
+ netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
+
+ priv->connected = false;
+ 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,
+ 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,
+ 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,
+ 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(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(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
+ cfg80211_roamed(usbdev->net,
+ get_current_channel(usbdev, NULL),
+ bssid, req_ie, req_ie_len,
+ resp_ie, resp_ie_len, GFP_KERNEL);
+ } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
+ cfg80211_ibss_joined(usbdev->net, bssid,
+ 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, 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;
+ 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;
+ u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
+ int len, retval, i, n;
+ struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+
+ /* determine supported modes */
+ len = sizeof(networks_supported);
+ retval = rndis_query_oid(usbdev,
+ RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED,
+ &networks_supported, &len);
+ if (retval >= 0) {
+ n = le32_to_cpu(networks_supported.num_items);
+ if (n > 8)
+ n = 8;
+ for (i = 0; i < n; i++) {
+ switch (le32_to_cpu(networks_supported.items[i])) {
+ case NDIS_80211_TYPE_FREQ_HOP:
+ case NDIS_80211_TYPE_DIRECT_SEQ:
+ priv->caps |= CAP_MODE_80211B;
+ break;
+ case NDIS_80211_TYPE_OFDM_A:
+ priv->caps |= CAP_MODE_80211A;
+ break;
+ case NDIS_80211_TYPE_OFDM_G:
+ priv->caps |= CAP_MODE_80211G;
+ break;
+ }
+ }
+ }
+
+ /* get device 802.11 capabilities, number of PMKIDs */
+ caps = (struct ndis_80211_capability *)caps_buf;
+ len = sizeof(caps_buf);
+ retval = rndis_query_oid(usbdev,
+ RNDIS_OID_802_11_CAPABILITY,
+ caps, &len);
+ if (retval >= 0) {
+ 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, 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_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");
+ 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[IEEE80211_BAND_2GHZ] = &priv->band;
+ wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
+
+ memcpy(priv->cipher_suites, rndis_cipher_suites,
+ sizeof(rndis_cipher_suites));
+ wiphy->cipher_suites = priv->cipher_suites;
+ wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
+
+ set_wiphy_dev(wiphy, &usbdev->udev->dev);
+
+ if (wiphy_register(wiphy)) {
+ retval = -ENODEV;
+ goto fail;
+ }
+
+ set_default_iw_params(usbdev);
+
+ 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);
+ flush_workqueue(priv->workqueue);
+ destroy_workqueue(priv->workqueue);
+
+ wiphy_free(wiphy);
+ return retval;
+}
+
+static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
+{
+ struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+
+ /* turn radio off */
+ disassociate(usbdev, false);
+
+ cancel_delayed_work_sync(&priv->dev_poller_work);
+ cancel_delayed_work_sync(&priv->scan_work);
+ cancel_work_sync(&priv->work);
+ flush_workqueue(priv->workqueue);
+ destroy_workqueue(priv->workqueue);
+
+ rndis_unbind(usbdev, intf);
+
+ wiphy_unregister(priv->wdev.wiphy);
+ wiphy_free(priv->wdev.wiphy);
+}
+
+static int rndis_wlan_reset(struct usbnet *usbdev)
+{
+ struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+ int retval;
+
+ netdev_dbg(usbdev->net, "%s()\n", __func__);
+
+ retval = rndis_reset(usbdev);
+ if (retval)
+ netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
+
+ /* rndis_reset cleared multicast list, so restore here.
+ (set_multicast_list() also turns on current packet filter) */
+ set_multicast_list(usbdev);
+
+ queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
+ round_jiffies_relative(DEVICE_POLLER_JIFFIES));
+
+ return deauthenticate(usbdev);
+}
+
+static int rndis_wlan_stop(struct usbnet *usbdev)
+{
+ struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+ int retval;
+ __le32 filter;
+
+ netdev_dbg(usbdev->net, "%s()\n", __func__);
+
+ retval = disassociate(usbdev, false);
+
+ priv->work_pending = 0;
+ cancel_delayed_work_sync(&priv->dev_poller_work);
+ cancel_delayed_work_sync(&priv->scan_work);
+ cancel_work_sync(&priv->work);
+ flush_workqueue(priv->workqueue);
+
+ if (priv->scan_request) {
+ cfg80211_scan_done(priv->scan_request, true);
+ priv->scan_request = NULL;
+ }
+
+ /* Set current packet filter zero to block receiving data packets from
+ device. */
+ filter = 0;
+ rndis_set_oid(usbdev, 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");
+
Code Review / kvmfornfv.git / blobdiff