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      1 /*
      2  * Driver interaction with Linux nl80211/cfg80211
      3  * Copyright (c) 2002-2010, Jouni Malinen <j (at) w1.fi>
      4  * Copyright (c) 2003-2004, Instant802 Networks, Inc.
      5  * Copyright (c) 2005-2006, Devicescape Software, Inc.
      6  * Copyright (c) 2007, Johannes Berg <johannes (at) sipsolutions.net>
      7  * Copyright (c) 2009-2010, Atheros Communications
      8  *
      9  * This program is free software; you can redistribute it and/or modify
     10  * it under the terms of the GNU General Public License version 2 as
     11  * published by the Free Software Foundation.
     12  *
     13  * Alternatively, this software may be distributed under the terms of BSD
     14  * license.
     15  *
     16  * See README and COPYING for more details.
     17  */
     18 
     19 #ifndef _DRIVER_NL80211_H_
     20 #define _DRIVER_NL80211_H_
     21 
     22 #include "includes.h"
     23 #include <sys/ioctl.h>
     24 #include <sys/types.h>
     25 #include <sys/stat.h>
     26 #include <fcntl.h>
     27 #include <net/if.h>
     28 #include <netlink/genl/genl.h>
     29 #include <netlink/genl/family.h>
     30 #include <netlink/genl/ctrl.h>
     31 #include <linux/rtnetlink.h>
     32 #include <netpacket/packet.h>
     33 #include <linux/filter.h>
     34 #include "nl80211_copy.h"
     35 
     36 #include "common.h"
     37 #include "eloop.h"
     38 #include "utils/list.h"
     39 #include "common/ieee802_11_defs.h"
     40 #include "netlink.h"
     41 #include "linux_ioctl.h"
     42 #include "radiotap.h"
     43 #include "radiotap_iter.h"
     44 #include "rfkill.h"
     45 #include "driver.h"
     46 
     47 #ifdef CONFIG_LIBNL20
     48 /* libnl 2.0 compatibility code */
     49 #define nl_handle nl_sock
     50 #define nl80211_handle_alloc nl_socket_alloc_cb
     51 #define nl80211_handle_destroy nl_socket_free
     52 #endif /* CONFIG_LIBNL20 */
     53 
     54 #ifndef IFF_LOWER_UP
     55 #define IFF_LOWER_UP   0x10000         /* driver signals L1 up         */
     56 #endif
     57 #ifndef IFF_DORMANT
     58 #define IFF_DORMANT    0x20000         /* driver signals dormant       */
     59 #endif
     60 
     61 #ifndef IF_OPER_DORMANT
     62 #define IF_OPER_DORMANT 5
     63 #endif
     64 #ifndef IF_OPER_UP
     65 #define IF_OPER_UP 6
     66 #endif
     67 
     68 struct nl80211_global {
     69 	struct dl_list interfaces;
     70 	int if_add_ifindex;
     71 	struct netlink_data *netlink;
     72 	struct nl_cb *nl_cb;
     73 	struct nl_handle *nl;
     74 	int nl80211_id;
     75 	int ioctl_sock; /* socket for ioctl() use */
     76 
     77 	struct nl_handle *nl_event;
     78 };
     79 
     80 struct nl80211_wiphy_data {
     81 	struct dl_list list;
     82 	struct dl_list bsss;
     83 	struct dl_list drvs;
     84 
     85 	struct nl_handle *nl_beacons;
     86 	struct nl_cb *nl_cb;
     87 
     88 	int wiphy_idx;
     89 };
     90 
     91 struct i802_bss {
     92 	struct wpa_driver_nl80211_data *drv;
     93 	struct i802_bss *next;
     94 	int ifindex;
     95 	char ifname[IFNAMSIZ + 1];
     96 	char brname[IFNAMSIZ];
     97 	unsigned int beacon_set:1;
     98 	unsigned int added_if_into_bridge:1;
     99 	unsigned int added_bridge:1;
    100 
    101 	u8 addr[ETH_ALEN];
    102 
    103 	int freq;
    104 
    105 	struct nl_handle *nl_preq, *nl_mgmt;
    106 	struct nl_cb *nl_cb;
    107 
    108 	struct nl80211_wiphy_data *wiphy_data;
    109 	struct dl_list wiphy_list;
    110 };
    111 
    112 struct wpa_driver_nl80211_data {
    113 	struct nl80211_global *global;
    114 	struct dl_list list;
    115 	struct dl_list wiphy_list;
    116 	char phyname[32];
    117 	void *ctx;
    118 	int ifindex;
    119 	int if_removed;
    120 	int if_disabled;
    121 	int ignore_if_down_event;
    122 	struct rfkill_data *rfkill;
    123 	struct wpa_driver_capa capa;
    124 	int has_capability;
    125 
    126 	int operstate;
    127 
    128 	int scan_complete_events;
    129 
    130 	struct nl_cb *nl_cb;
    131 
    132 	u8 auth_bssid[ETH_ALEN];
    133 	u8 bssid[ETH_ALEN];
    134 	int associated;
    135 	u8 ssid[32];
    136 	size_t ssid_len;
    137 	enum nl80211_iftype nlmode;
    138 	enum nl80211_iftype ap_scan_as_station;
    139 	unsigned int assoc_freq;
    140 
    141 	int monitor_sock;
    142 	int monitor_ifidx;
    143 	int monitor_refcount;
    144 
    145 	unsigned int disabled_11b_rates:1;
    146 	unsigned int pending_remain_on_chan:1;
    147 	unsigned int in_interface_list:1;
    148 	unsigned int device_ap_sme:1;
    149 	unsigned int poll_command_supported:1;
    150 	unsigned int data_tx_status:1;
    151 	unsigned int scan_for_auth:1;
    152 	unsigned int retry_auth:1;
    153 	unsigned int use_monitor:1;
    154 
    155 	u64 remain_on_chan_cookie;
    156 	u64 send_action_cookie;
    157 
    158 	unsigned int last_mgmt_freq;
    159 
    160 	struct wpa_driver_scan_filter *filter_ssids;
    161 	size_t num_filter_ssids;
    162 
    163 	struct i802_bss first_bss;
    164 
    165 	int eapol_tx_sock;
    166 
    167 #ifdef HOSTAPD
    168 	int eapol_sock; /* socket for EAPOL frames */
    169 
    170 	int default_if_indices[16];
    171 	int *if_indices;
    172 	int num_if_indices;
    173 
    174 	int last_freq;
    175 	int last_freq_ht;
    176 #endif /* HOSTAPD */
    177 
    178 	/* From failed authentication command */
    179 	int auth_freq;
    180 	u8 auth_bssid_[ETH_ALEN];
    181 	u8 auth_ssid[32];
    182 	size_t auth_ssid_len;
    183 	int auth_alg;
    184 	u8 *auth_ie;
    185 	size_t auth_ie_len;
    186 	u8 auth_wep_key[4][16];
    187 	size_t auth_wep_key_len[4];
    188 	int auth_wep_tx_keyidx;
    189 	int auth_local_state_change;
    190 	int auth_p2p;
    191 };
    192 
    193 #endif
    194